Patent Application
20250185862
The present disclosure relates to a cleaner provided to collect foreign substances in drawn air using a centrifugal force.
A cleaner is a device that removes foreign substances (rubbish) and cleans the room, and vacuum cleaners are commonly used in homes. A vacuum cleaner cleans a room by drawing in air using suction power generated by a fan motor unit and then separating foreign substances in the drawn air with devices such as filters and dust collectors.
Such a vacuum cleaner includes a canister type and upright type, and recently, a robot vacuum cleaner that performs cleaning tasks by traveling around a cleaning region on its own without user intervention and drawing in foreign substances such as dust from a surface to be cleaned has become popular.
A vacuum cleaner includes a predetermined dust collection device to filter out foreign substances contained in drawn air. Methods of filtering out foreign substances in a dust collection device include a porous filter device in which foreign substances are forcibly filtered out as air passes through a porous filter, and a cyclone type dust collection device in which foreign substances are filtered out by a centrifugal force by rotating air.
The cyclone type dust collection device includes a dust collector rotatably provided and in contact with air to collect dust by rotating the air.
The present disclosure is directed to providing a cleaner capable of reducing power consumption.
The present disclosure is directed to providing a cleaner including a lightweight structure.
The present disclosure is directed to providing a cleaner having a structure of not including a separate motor for rotating a dust collector.
The present disclosure is directed to providing a cleaner including a structure capable of improving operational reliability.
The present disclosure is directed to providing a cleaner including a structure capable of preventing foreign substances from flowing into a bearing for rotatably supporting a dust collector.
The present disclosure is directed to providing a structure capable of preventing foreign substances from flowing into a bearing for rotatably supporting a rotation body.
The present disclosure is directed to providing a cleaner including a structure capable of smoothly flowing air even when some of routes through which the air flows are closed.
Technical tasks to be achieved in this document are not limited to the technical tasks mentioned above, and other technical tasks not mentioned will be clearly understood by those skilled in the art to which the present invention belongs from the description below.
An embodiment of the present disclosure provides a cleaner may comprise a case having an internal path formed therein; an intake motor to draw in air containing foreign substances into the case; a dust collector disposed on the internal path through which the drawn air flows and rotatable to separate the foreign substances from the drawn air by rotating the drawn air; and a rotation body disposed further downstream than the dust collector in an airflow direction of the drawn air, to rotate by the air passing through the dust collector, and to rotate the dust collector by being combined with the dust collector.
The rotation body may comprise a rotor to extend in a direction parallel to a direction in which the air passing through the dust collector flows; and blades arranged along an outer circumference of the rotor to rotate the rotor by the air passing through the dust collector, and the dust collector is coupled to the rotor to be rotated by the rotation of the rotor.
The rotor may comprise: a rotor body to be inserted into the dust collector; and a rotor head formed at one end of the rotor body to be outside the dust collector, the blades arranged along an outer circumference of the rotor head, the dust collector comprises a first coupler formed on an inner circumferential surface of the dust collector, and the rotor body comprises a second coupler formed on an outer circumferential surface of the rotor body to be coupled to the first coupling part.
The first coupler may comprises a protruding part formed to protrude from the inner circumferential surface toward the inside of the dust collector, and the second coupling part comprises a groove part into which the protruding part is inserted.
The rotation body may be detachably combined with the dust collector.
The blades may comprise: a first blade on the outer circumference of the rotor; and a second blade on an opposite side of the first blade with respect to the rotor, the dust collector comprises a dust collector body having a cylindrical shape, and a length from one end of the first blade to one end of the second blade is to be smaller than a diameter of the dust collector body.
The case may comprises: an outer case comprising an intake hole to allow the air to be drawn into the inside of the case; and an inner case to be accommodated in the outer case to rotatably accommodate the dust collector and the rotation body. the inner case comprising an opening formed to allow the air drawn into the outer case to flow into the inner case.
The case may further comprise a cover part to cover the opening of the inner case, the cover part comprising a plurality of holes to allow the air drawn into the outer case to pass into the inner case, and the inner case comprises: a bypass hole formed to allow air not passing through the plurality of hole to be introduced into the inner case in response to the air not passing through the plurality of holes; and a bypass door to be rotatable to open or close the bypass hole.
The case may further comprise a scattering preventor coupled to a lower side of the inner case to prevent foreign substances accumulated inside the outer case from being introduced into the opening, and the scattering preventor comprises: a scattering prevention body extending downward from the inner case; and a scattering prevention rib extending spirally along a longitudinal direction of the scattering prevention body on an outer circumferential surface of the scattering prevention body and protruding toward an inner circumferential surface of the outer case.
The dust collector may comprise: a dust collector body to separate the foreign substances from the air flowing into the inner case, a dust collector rotation shaft extending downward from a lower surface of the dust collector body to be inserted into the inner case; a dust collector bearing coupled to the dust collector rotation shaft to rotatably support the dust collector on the inner case; and a first guard formed to be spaced outward from the dust collector rotation shaft and protruding downward to prevent the foreign substances from flowing into the dust collector bearing by covering the dust collector rotation shaft from the outside.
The inner case may comprise a first rotation support to protrude upward to form a first insertion groove into which the dust collector bearing and the dust collector rotation shaft are inserted, and the first rotation support to be inserted into a space formed by the dust collector rotation shaft and the first guard being spaced apart.
The case may comprise an inner case to rotatably support the rotation body, and the rotation body comprises: a rotor rotation shaft extending upward from the rotor head to be inserted into the inner case, a rotor bearing coupled to the rotor rotation shaft to rotatably support the rotation body on the inner case; and a second guard formed to be spaced outward from the rotor rotation shaft and protruding upward to prevent the foreign substances from flowing into the rotor bearing by covering the rotor rotation shaft from the outside.
The rotation body may further comprise a third guard formed to be spaced outward from the second guard and protruding upward to cover the second guard from the outside, and the inner case comprises a protruding rib formed to protrude downward and to be inserted into a space formed by the second guard and the third guard being spaced apart.
The inner case may comprise a rotation guide to guide the air drawn into the outer case so that the air drawn into the outer case passed through the intake hole rotates in a first direction inside the outer case, and the rotation body comprises: a rotor to extend in a direction parallel to a direction in which the air passing through the dust collector flows; and blades inclined to have a negative inclination with respect to a tangential direction of the first direction to rotate the rotor in the first direction by the air passing through the dust collector and arranged along an outer circumference of the rotor.
The dust collector may comprise: a dust collector body combined with the rotation body to rotate in the first direction; and a dust collection rib protruding from an outer circumference of the dust collector body in a radial direction of the dust collector body and formed to be inclined toward a tangential direction in a direction opposite to the first direction.
An embodiment of the present disclosure provides a cleaner including an intake motor provided to generate an intake force, and an impeller provided to be driven by the intake motor to generate an intake airflow drawing in air containing foreign substances. The cleaner also includes a dust collector disposed on a path of the intake airflow and provided to be rotatable to rotate the drawn air to separate the foreign substances from the air. The cleaner also includes a rotation body disposed further downstream than the dust collector in a flow direction of the intake airflow, including a rotor extending in a direction parallel to the air passed through the dust collector and blades provided to rotate the rotor by coming into contact with the air, and provided to rotate the dust collector by being combined with the dust collector. The dust collector is detachably coupled to the rotor.
The embodiments described in the present specification and the configurations shown in the drawings are only examples of preferred embodiments of the present disclosure, and various modifications may be made at the time of filing of the present disclosure to replace the embodiments and drawings of the present specification.
Like reference numerals or signs in the various drawings of this specification represent parts or components that perform substantially the same functions.
The terms used in this specification are for the purpose of describing the embodiments and are not intended to restrict and/or to limit the present disclosure. For example, the singular expressions herein may include plural expressions, unless the context clearly dictates otherwise. Also, the terms “includes” and “has” are intended to indicate that there are features, numbers, steps, operations, components, parts, or combinations thereof described in this specification, and do not exclude the presence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.
It will be understood that, although the terms “first,” “second,” etc., may be used in this specification to describe various components, these components should not be limited by these terms, and the terms are only used to distinguish one component from another. For example, without departing from the scope of the present disclosure, a first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component. The term “and/or” includes any combination of a plurality of related items or any one of a plurality of related items.
The shape and location of each component are not limited by terms such as “front.” “rear,” “left,” “right,” “upper.” and “lower” used in the following description.
When any component is referred to as being “connected”, “coupled”, “supported” or “in contact” with another component, this includes a case in which the components are indirectly connected, coupled, supported, or in contact with each other through a third component as well as directly connected, coupled, supported, or in contact with each other.
When any component is referred to as being located “on” or “over” another component, this includes not only a case in which any component is in contact with another component but also a case in which another component is present between the two components.
In referring to a direction of rotation, the clockwise direction may be expressed as a first direction, and the counterclockwise direction, which is the opposite direction to the first direction, may be expressed as a second direction. These expressions may be used to describe specific details for carrying out the present disclosure, but rotation directions of the components of the present disclosure are not limited by these terms.
Cleaners according to various embodiments will be described in detail below with reference to the accompanying drawings.
Referring to
More specifically, the main body 10 may include an intake device 10a including an intake motor 18a generating the intake force to the inside of the main body 10, and a dust collection device 10b provided to separate drawn air and foreign substances from each other and store the foreign substances. The dust collection device 10b may be disposed upstream of the intake device 10a based on an airflow direction. A detailed description of an arrangement relationship of components of the cleaner 1 with respect to the airflow direction will be described later.
The main body 10 may include a handle 40 provided to be held by a user, and a battery 50 provided to supply electric power necessary for the operation of components of the cleaner 1 such as the intake motor 18a and an electrical component 18b (described later). The main body 10 may include an operation unit 17. The user may turn the cleaner 1 on/off or adjust the intake force by manipulating a power button provided on the operation unit 17.
The cleaner 1 may include a connector 20 provided to connect the intake head 13 and the main body 10. The intake head 13 includes an intake brush (not shown), and may come into close contact with the surface to be cleaned to draw in air and foreign substances from the surface to be cleaned. The intake head 13 may be rotatably coupled to the connector 20.
The connector 20 may be formed of a pipe or flexible hose with a certain rigidity. The connector 20 may transmit the intake force generated through the intake motor 18a of the intake device 10a to the intake head 13, and the intake head 13 may draw in air and foreign substances to the connector 20 side with the received intake force.
As an example, the main body 10 may include an intake duct 11 in communication with one end of the connector 20, and a duct flow path 11a may be formed at one end of opposite ends of the intake duct 11 connected to one end of the connector 20. The intake duct 11 may be surrounded and protected by a cover 15 of the intake duct 11.
Air and foreign substances drawn by the intake head 13 may pass through the connector 20 and flow into the duct flow path 11a of the intake duct 11. Then, the air and foreign substances may be introduced into the dust collection device 10b connected to the duct flow path 11a (F1).
The foreign substances flowed into the dust collection device 10b through the duct flow path 11a may be collected inside the dust collection device 10b to be separated from the air. Thereafter, the air from which the foreign substances have been removed may flow to the intake device 10a. A specific process of collecting foreign substances contained in air by the dust collection device 10b will be described later.
The main body 10 may include the intake device 10a. Air from which foreign substances have been removed through the dust collection device 10b may flow to the intake device 10a.
The intake device 10a may include an impeller 19b rotatably provided to generate the intake force, the intake motor 18a capable of driving to provide a rotational force, a shaft 19a provided to transmit the rotational force of the intake motor 18a to the impeller 19b, and the electrical component 18b electrically connected to the intake motor 18a to control the operation of the intake motor 18a. The turning of the cleaner 1 on/off or the adjusting of the intake force, as described above, may refer to adjusting a rotational speed of the impeller 19b by adjusting the rotational force with which the intake motor 18a rotates the shaft 19a.
The intake motor 18a may perform a function of converting an electromagnetic force into a mechanical rotational force. In order to perform the above function, the intake motor 18a may include a stator in which a coil is provided, and a stator rotor having magnetism and capable of rotating by the electromagnetic force of the stator.
The intake device 10a may further include an impeller cover 14a provided to accommodate the intake motor 18a and the impeller 19b. The impeller cover 14a is disposed between the dust collection device 10b and the impeller 19b, and at least one housing opening may be formed to allow air discharged from the dust collection device 10b to move toward the impeller 19b.
The intake device 10a may include a main body exhaust port 12a through which air from which foreign substances have been removed through the dust collection device 10b is discharged to the outside of the main body 10. The main body 10 may include an exhaust case 12, and a main body exhaust port 12a may be formed on an outer circumferential surface of the exhaust case 12 to allow air to be discharged to the outside of the main body 10. After foreign substances are removed from air in the dust collection device 10b, the air flowed to the intake device 10a may be discharged to the outside through the main body exhaust port 12a.
A configuration of the dust collection device 10b and flows of air and foreign substances in the dust collection device 10b will be described in detail below.
The main body 10 may include the dust collection device 10b. The dust collection device 10b may be configured to be disposed further upstream than the intake motor 18a in the airflow direction to separate foreign substances from air being introduced into the dust collection device 10b and collect and store the separated foreign substances.
The dust collection device 10b may be the cyclone type dust collection device 10b. The cyclone type dust collection device 10b may be formed to include structures capable of separating foreign substances using a centrifugal force generated as air and foreign substances rotationally flow therein and guiding the rotational flow of the air so that the air passed through an intake hole 111 may flow in a spiral shape by a rotation guide 122.
The dust collection process may include a first dust collection process of being performed in a first dust collection chamber S1 of an outer case 110, and a second dust collection process of being performed in a second dust collection chamber S2 by a dust collector 200 accommodated in an inner case 120.
Foreign substances primarily separated by the first dust collection process may include relatively large-sized foreign substances. For example, the outer case 110 in which the first dust collection process is performed may be provided such that a rotational radius in which air flows is relatively large, and the first dust collection chamber S1 may also be formed to be large enough to correspond thereto.
In the second dust collection process, relatively small-sized foreign substances that were not sufficiently separated in the first dust collection process may be separated from the air. For example, the inner case in which the second dust collection process is performed may be provided to have a relatively small rotational radius, and the second dust collection chamber S2 may also be formed to be small to correspond thereto.
However, unlike the above, the cyclone type dust collection device 10b may not be applied in the first dust collection process. For example, in the first dust collection process according to the present disclosure, as the dust collection device 10b for primarily separating foreign substances from air introduced from the intake head 13, various types of the dust collection device 10b may be applied, such as the dust collection device 10b separating foreign substances through a porous filter.
However, hereinafter, for convenience of explanation, the first dust collection process and the second dust collection process will be described on the assumption that the cyclone type dust collection device 10b is applied, respectively.
The dust collection device 10b may include a case 100. The case 100 of the dust collection device 10b may include the outer case 110 forming an exterior and provided to primarily collect foreign substances from air. The case 100 of the dust collection device 10b may include the inner case 120 disposed inside the outer case 110 to accommodate the dust collector 200 (described later) provided to secondarily remove foreign substances from air.
The outer case 110 may include the intake hole 111 connected to the other end opposite to one end of the intake duct 11 on which the duct flow path 11a is formed. Through this, the intake hole 111 may be disposed to communicate with the duct flow path 11a of the intake duct 11. Accordingly, the air and foreign substances drawn into the intake head 13 may flow into the intake hole 111 through the intake duct 11 to be introduced into the inside of the outer case 110 (F1).
Foreign substances in air may be collected and stored in the outer case 110.
The outer case 110 may include a dust collection box 113 (see
A space formed by being surrounded by the dust collection box 113 may be defined as the first dust collection chamber S1. Components of the dust collection device 10b may be disposed in the first dust collection chamber S1. A detailed description of this will be provided later.
As an example, the intake hole 111 may be formed on an upper side of a side surface of the dust collection box 113. The formed intake hole 111 may be provided to communicate with the first dust collection chamber S1. Accordingly, the air and foreign substances drawn from the intake head 13 through the intake duct 11 may flow to an intake port through the duct flow path 11a to flow into the first dust collection chamber S1 of the outer case 110.
As an example, the outer case 110 may include a light-transmissive material. Therefore, the user may easily check the amount of foreign substances stored in the outer case 110 and remove dust from the dust collection box 113.
The case 100 may include the inner case 120 disposed to be inserted into the outer case 110.
The inner case 120 may include a first inner case 120a disposed to cover the dust collection box opening 114 of the outer case 110, and a second inner case 120b disposed on a lower side of the first inner case 120a to be accommodated inside the outer case 110.
The first inner case 120a may have a shape corresponding to the dust collection box opening 114 of the outer case 110. The first inner case 120a may include a hole portion to communicate with the first dust collection chamber S1 of the outer case 110 and the outside of the outer case 110. The air from which foreign substances have been removed from the inside of the outer case 110 may flow from the inside of the dust collection device 10b to the intake device 10a through the hole portion.
The second inner case 120b may be coupled to the lower side of the first inner case 120a to be accommodated in the outer case 110.
As an example, the second inner case 120b may be provided in a substantially cylindrical shape.
The second inner case 120b may include the rotation guide 122 which includes guide surfaces 1221, 1222, and 1224 forming a guide flow path 1223 communicating with the intake hole 111 of the outer case 110. The second inner case 120b may include an opening 124 formed to allow air and foreign substances to flow into the second inner case 120b.
The guide surfaces 1221 and 1222 may be provided to guide the air flowed through the intake hole 111 to the guide flow path 1223.
The guide surfaces 1221, 1222, and 1224 may include the first guide surface 1221 formed to extend in a first direction r1 along an outer circumference of the second inner case 120b. The air and foreign substances, which have flowed into the inside of the outer case 110 through the intake hole 111 in a direction parallel to a radial direction of the outer case 110, may be guided to flow in the first direction r1 inside the first dust collection chamber S1 by the first guide surface 1221 (F2).
As an example, though the drawing illustrates that the first direction r1 is a counterclockwise direction when looking down at the first dust collection chamber S1 from above, a case in which the first direction is a clockwise direction is also possible.
The guide surfaces 1221, 1222, and 1224 may include the second guide surface 1222 formed to extend along a lower side of the first guide surface 1221 in the first direction r1 and protrude toward an inner circumferential surface 112 of the outer case. The second guide surface 1222 may be provided to prevent air and foreign substances from flowing into the first dust collection chamber S1 in a state of not being guided in the first guide surface 1221.
The guide surfaces 1221, 1222, and 1224 may include the third guide surface 1224 formed on the other side opposite to one side of the first guide surface 1221 facing the intake hole 111.
The third guide surface 1224 may be formed to protrude toward the inner circumferential surface 112 of the outer case in a direction of intersecting a direction in which the second guide surface 1222 extends. The drawn air and foreign substances guided to flow in the first direction r1 by the first guide surface 1221 may flow to come into contact with the inner circumferential surface 112 of the outer case by being additionally guided by the third guide surface 1224 (F3).
The air and foreign substances guided to flow in the first direction r1 by the guide surfaces 1221, 1222, and 1224 may flow inside the first dust collection chamber S1 along the inner circumferential surface 112 of the outer case.
Thereafter, the air and foreign substances may come into contact with the inner circumferential surface 112 of the outer case, spirally involute along a longitudinal direction of the outer case 110, and flow to a lower side of the outer case 110 (F4).
Because air and foreign substances rotate in the first direction r1 in the first dust collection chamber S1, foreign substances D having relatively large particles may be separated from the air by a centrifugal force and collected on the lower side of the outer case 110. This may be defined as the first dust collection process.
The main body 10 may include the dust collector 200 provided to be rotatably accommodated within the inner case 120 to collect air and foreign substances flowing from the first dust collection chamber S1 to the inner case 120.
That is, the dust collector 200 is disposed on an internal path of the case 100 through which air flows, and may be rotatably provided to separate foreign substances from the air by rotating the drawn air.
The main body 10 may include a rotation body 300 provided to be rotatably accommodated within the inner case 120 and to enable to be combined with the dust collector 200.
The rotation body 300 may be disposed further downstream than the dust collector 200 in the airflow direction to rotate by coming into contact with air passed through the dust collector 200 (F7). The rotation body 300 may be combined with the dust collector 200 to rotate the dust collector 200.
The case 100 of the dust collection device 10b may include a scattering prevention part 130 provided to prevent foreign substances collected through the first dust collection process from flowing from the first dust collection chamber S1 into the second inner case 120b. The dust collection device 10b may include the cover part 150 provided to cover the opening 124 (see
The air flowed to the lower side of the outer case 110 through the first dust collection process may then flow to an upper side toward the inner case 120 (F5). At this time, as the air flows upward, dust collected on the lower side of the outer case 110 through the first dust collection process may be carried up by the air flow.
The scattering prevention part 130 may prevent collected dust from flowing into the second case 100. More specifically, the scattering prevention part 130 may include a scattering prevention body 131 extending downward from the inner case 120, and a scattering prevention rib 132 extending spirally along a longitudinal direction of the scattering prevention body 131 from an outer circumferential surface of the scattering prevention body 131 and protruding toward the inner circumferential surface 112 of the outer case.
The air flowed from the lower side of the outer case 110 toward the second inner case 120b may involute and flow in a spiral direction toward the upper side along the longitudinal direction of the scattering prevention body 131 while coming into contact with the outer circumferential surface of the scattering prevention body 131 (F5). At this time, the air flows along the outer circumferential surface of the scattering prevention body 131 to flow to the opening 124 side of the second inner case 120b, but the dust collected in the first dust collection process is prevented from flowing upward by the scattering prevention rib 132. Therefore, only dust containing relatively small-sized foreign substances may flow inside the second inner case 120b. An internal space of the second inner case 120b may be defined as the second dust collection chamber S2.
The air and foreign substances flowed to the second inner case 120b side may be introduced into the plurality of holes 151 of the cover part 150. Because the plurality of holes 151 is in communication with the opening 124 of the second inner case 120b, the air and foreign substances may flow into the second dust collection chamber S2 inside the second inner case 120b through the opening 124 (F6).
The air and foreign substances flowed into the second inner case 120b may be separated from each other in the dust collector 200. The dust collector 200 may include a dust collector body 220 provided to rotate in the first direction r1, and a dust collection rib 210 protruding from an outer circumference of the dust collector body 220 in a radial direction of the dust collector body 220 and formed to be inclined toward a tangential direction in a direction opposite to the first direction r1.
The foreign substances flowed into the second inner case 120b may collide with one surface of the dust collection rib 210 of the rotating dust collector 200 and be separated from the air.
In addition, the air and foreign substances flowed into the second inner case 120b may receive a centrifugal force while being rotated in the first direction r1 by the dust collector body 220 and the dust collection rib 210 which rotate in the first direction r1, and the foreign substances may be separated from the air by the centrifugal force.
Through this, relatively small-sized foreign substances may be dusted and collected from the air. This may be defined as the second dust collection process.
The dust collector 200 may be provided to enable to be combined with the rotation body 300, and the rotation of the dust collector 200 may be achieved by receiving a rotational force of the rotation body 300. A detailed description of a structure of the dust collector 200 and a method by which the dust collector 200 is combined with the rotation body 300 and receives the rotational force of the rotation body 300 will be provided later.
The air passed through the dust collector 200 may flow upward with foreign substances removed (F7). In this case, the rotation body 300 may include rotor 310 provided to extend in a direction parallel to a direction in which the air passed through the dust collector 200 flows.
The rotor 310 may include the rotor body 311 formed to extend in a vertical direction and provided to be inserted into and seated on the dust collector 200, and the rotor head 312 formed at one end of the rotor body 311 and disposed outside the dust collector 200. The one end of the rotor body 311 may refer to one side of the rotor body 311 disposed to face in the opposite direction of the dust collector 200.
The rotation body 300 may include blades 330 arranged along outer circumferences of the rotor 310. More specifically, the blades 330 may be arranged along the outer circumference of the rotor head 312. The blade 330 may be provided to come into contact with air flowing to the intake device 10a side by the intake device 10a. The air flowed to the intake device 10a side may rotate the rotor 310 by coming into contact with the blade 330. Also, the blade 330 may be provided to rotate the rotor 310 by coming into contact with the air passed through the dust collector 200.
As an example, the blade 330 may be disposed to be inclined along the outer circumferences of the rotor 310 to rotate the rotor 310 in the first direction r1 by air flowing from a lower side to an upper side. (See
As a result, because the rotation body 300 rotates in the first direction r1, the dust collector 200 combined with the rotation body 300 may also rotate in the first direction r1. Because the rotation direction r1 of air and foreign substances flowing into the outer case 110 and undergoing the first dust collection process coincides with the rotation direction r1 of the rotation body 300 and the dust collector 200, the air may flow more smoothly within the dust collection device 10b.
The air passed through the rotation body 300 after contacting the blade 330 may flow to the intake device 10a (F8). Thereafter, as described above, the air may be finally exhausted to the outside through the exhaust case 12 (F9).
Hereinafter, paths through which while air drawn from the outside passes through the cleaner 1, foreign substances are removed and the air is exhausted to the outside will be sequentially described with reference to
Due to the intake force caused by the operation of the intake device 10a, foreign substances and air on the surface to be cleaned may flow into the duct flow path 11a of the intake duct 11 through the intake head 13. Thereafter, the drawn foreign substances and air may flow into the first dust collection chamber S1 inside the outer case 110 through the intake hole 111 of the outer case 110 (F1).
The foreign substances and air flowed into the first dust collection chamber S1 may rotate in the first direction r1 by the rotation guide 122 of the inner case 120 (F2).
The foreign substances and air may rotate in the first direction r1, come into contact with the inner circumferential surface 112 of the outer case, and flow to the lower side of the outer case 110 (F3 and F4), and the foreign substances may be primarily separated by the centrifugal force. This may be defined as the first dust collection process.
The foreign substances separated from the air may be collected on the lower side of the outer case 110. Thereafter, the air may flow from the lower side of the outer case 110 to the upper side toward the second inner case 120b (F5). The dust collected on the lower side of the outer case 110 may be prevented from flowing to the second inner case 120b side by the scattering prevention rib 132.
The air flowed to the second inner case 120b side may pass through the plurality of holes and the opening 124 and flow into the second dust collection chamber S2, which is the internal space of the second inner case 120b (F6).
The air and foreign substances flowed into the second dust collection chamber S2 may come into contact with the dust collector 200 accommodated inside the second inner case 120b. The foreign substances may be separated from the air by the second dust collector 200 and collected inside the second dust collection chamber S2. This may be defined as the second dust collection process.
The air from which the foreign substances have been removed by coming into contact with the dust collector 200 may flow in an upward direction (F7). The rotation body 300 may be disposed downstream of the dust collector 200 with respect to the airflow direction.
The rotation body 300 includes the rotor 310 and the blade 330 provided to be rotatable by an intake flow generated by the intake device 10a, and may be provided to be combined with the dust collector 200. The air may come into contact with the blade 330 to rotate the rotation body 300 in the first direction r1, and through this, the dust collector 200 may also rotate in the first direction r1.
The air passed through the rotation body 300 may be introduced into the impeller 19b of the intake device 10a, which rotates and generates the intake force (F8). Thereafter, the air may flow into the exhaust case 12 and finally be discharged to the outside through the exhaust port 12a (F9).
The dust collection device 10b, which separates foreign substances from air, may be detachably coupled to another component of the main body 10.
The first inner case 120a of the dust collection device 10b may connect the dust collection device 10b to another component of the main body 10. The dust collection device 10b may include a coupling button 121 provided on one side of the first inner case 120a to detachably couple the dust collection device 10b to another component of the main body 10.
More specifically, as illustrated in
The coupling button 121 may be provided to be caught on and coupled to one side of the main body 10. When the coupling button 121 is caught on and coupled to one side of the main body 10, the dust collection device 10b may be mounted on the main body 10.
The coupling button 121 may be provided to release the locking coupling when the user presses the coupling button 121 in a state in which the dust collection device 10b is mounted on the main body 10, and thus the dust collection device 10b may be separated from the main body 10.
When the dust collection device 10b is separated from another component of the main body 10, the user may perform various works, such as removing foreign substances collected in the dust collection device 10b, cleaning the dust collection device 10b, and repairing or replacing parts of the dust collection device 10b or the main body 10. However, the present disclosure is not limited thereto, and the dust collection device 10b may be separated from the main body 10 in various ways.
The dust collection device 10b may include a coupling protrusion 115 provided on one side of the outer case 110. Accordingly, the main body 10 may include a dust collection device coupling part 16 provided on a side where the dust collection device 10b is positioned. The coupling protrusion 115 may be detachably coupled to the dust collection device coupling part 16 to detachably couple the dust collection device 10b to the main body 10. For example, the coupling protrusion 115 may be provided to be coupled to or separated from the dust collection device coupling part 16 while sliding.
Referring to
The inner case 120 may include a rotor rotation shaft insertion groove 129 formed to be recessed toward the upper side (+Z direction) to accommodate the rotor rotation shaft 313. A portion of the inner case 120 forming the rotor rotation shaft insertion groove 129 may be defined as a second rotation support portion.
The rotation body 300 may include a rotor bearing 314 coupled to the rotor rotation shaft 313 to rotatably support the rotation body 300 on the inner case 120. The rotor bearing 314 and the rotor rotation shaft 313 may be provided to be inserted into the rotor rotation shaft insertion groove 129. The rotor rotation shaft 313 may be disposed to be in contact with one surface of a rotor recess portion forming the rotor rotation shaft insertion groove 129 to support the rotor rotation shaft 313.
The rotation body 300 may include a second guard part 340 formed to be spaced apart from the rotor rotation shaft 313 in an outward direction. The second guard part 340 may be formed to protrude upward (+Z direction) from the rotor head 312 and cover the rotor rotation shaft 313 from the outside. Because the second guard part 340 protrudes toward the upper side (+Z direction), foreign substances may be prevented from flowing from the outside of the rotor 310 to the rotor rotation shaft 313 and the rotor bearing 314. Therefore, operational reliability of the cleaner 1 may be improved.
The rotation body 300 may include a third guard part 350 formed to be spaced outwardly from the rotor rotation shaft 313. The third guard part 350 may be formed to be disposed further outward from the rotor rotation shaft 313 than the second guard part 340. The third guard part 350 may be formed to protrude upward (+Z direction) from the rotor head 312. As an example, a protruding length of the third guard part 350 may be smaller than a protruding length of the second guard part 340.
The third guard part 350 and the second guard part 340 may be formed to be spaced apart from each other. A space on the rotor head 312 formed by being surrounded by the second guard part 340, the third guard part 350, and the rotor head 312 may be defined as a second spacing space d2.
The inner case 120 may include a protruding rib 127 formed to protrude downward (-Z direction) from an upper surface of the first inner case 120a. The protruding rib 127 may be formed to protrude toward the rotor head 312.
The protruding rib 127 may be disposed to be inserted into the second spacing space d2 between the second guard part 340 and the third guard part 350 when the rotor 310 are rotatably supported on the inner case 120.
One end of the protruding rib 127 may be provided so as not to be in contact with the rotor head 312. The protruding rib 127 may be provided so as not to be in contact with any surface of the second guard part 340 and the third guard part 350. Therefore, even when the protruding rib 127 is disposed to be inserted into the second spacing space d2, the rotation body 300 may rotate stably.
The rotation body 300 may rotate while in a state in which the protruding rib 127 is disposed between the second guard part 340 and the third guard part 350 is kept. At this time, a vortex of air may occur in the spacing space into which the protruding rib 127 is inserted due to the rotation of the rotation body 300. Due to the vortex of air, foreign substances placed on the outside of the rotation body 300 may be more effectively prevented from flowing into the rotor bearing 314 and the rotor rotation shaft 313. Therefore, the operational reliability of the cleaner 1 may be improved.
The dust collector 200 may include a dust collector body inner part 221 forming the inside of the dust collector body 220 and a dust collector body outer part 222 forming the outside of the dust collector body 220. The dust collection rib 210 may be formed to protrude from the dust collector body inner part 221 in a radial direction of the dust collector body 220. One end of the protruding dust collection rib 210 and the dust collector body outer part 222 may be provided to be spaced apart from each other.
The inner case 120 may include a cover rib 128 disposed further outward than the protruding rib 127 and provided to protrude downward (−Z direction).
The cover rib 128 may be disposed to be inserted into a space formed by the dust collection rib 210 and the dust collector body outer part 222 being spaced apart. The cover rib 128 may not be in contact with the dust collector 200 even when inserted into the space formed by the dust collection rib 210 and the dust collector body outer part 222 being spaced apart. Therefore, the dust collector 200 may rotate smoothly.
The dust collector 200 may rotate while in a state in which the cover rib 128 is disposed between the dust collection rib 210 and the dust collector body outer part 222 is kept. At this time, a vortex of air may occur in the space into which the cover rib 128 is inserted due to the rotation of the dust collector 200. Due to the vortex of air, foreign substances placed on the outside of the dust collector 200 may be more effectively prevented from flowing into the rotor bearing 314 and the rotor rotation shaft 313. Therefore, the operational reliability of the cleaner 1 may be improved.
Referring to
The inner case 120 may include a first rotation support part 125 formed to protrude upward to form a first insertion groove 126. The dust collector rotation shaft 230 and the dust collector bearing 240 may be provided to be inserted into the first insertion groove 126 so as to be rotatable by the first rotation support part 125.
The dust collector 200 may include the first guard part 250 formed to be spaced outward from the dust collector rotation shaft 230 and protruding downward from the dust collector body 220 to cover the dust collector rotation shaft 230 from the outside. The first guard part 250 may be provided to cover the first rotation support part 125 from the outside.
The first rotation support part 125 may be provided to be inserted into a first spacing space dl formed by the dust collector rotation shaft 230 and the first guard part 250 being spaced apart. In this case, the first rotation support part 125 may be disposed so as not to be in contact with a lower side of the dust collector body 220.
Also, the first rotation support part 125 may be disposed so as not to be in contact with the first guard part 250 and the dust collector rotation shaft 230. Therefore, the dust collector 200 may rotate smoothly by being supported by the first rotation support part 125.
When the dust collector 200 rotates, a vortex may be generated in the first spacing space d1. Therefore, external foreign substances and the like may be prevented from flowing into the dust collector bearing 240 and the dust collector rotation shaft 230. Therefore, the operational reliability of the cleaner 1 may be further improved.
The arrangement relationship of the components of the dust collection device 10b will be described below with reference to
As described above, the dust collection device 10b may include the outer case 110 of which upper side (+Z direction) is open to form the dust collection box opening 114. The outer case 110 may include the dust collection box 113 forming an outer shape. One side of the dust collection box 113 may have the opening 124, so that the intake hole 111 through which dust is drawn may be formed.
The inner case 120 may include the first inner case 120a provided to cover the upper side (+Z direction), and the second inner case 120b coupled to the lower side (−Z direction) of the first inner case 120a to accommodate the dust collector 200 and the rotation body 300. The dust collector 200 and the rotation body 300 may be rotatably seated inside the second inner case 120b.
The rotation body 300 may be disposed to be inserted into the dust collector 200. The rotation body 300 may be detachably combined with the dust collector 200. Because the rotation body 300 and the dust collector 200 may be separated, maintenance and repair of the rotation body 300 and the dust collector 200 may be performed more easily. A detailed description of the method of combining the rotation body 300 and the dust collector 200 will be provided later.
The second inner case 120b may include a first body part 1231 in direct contact with the first inner case 120a and coupled to the first inner case 120a. The second inner case 120b may include a second body part 1232 extending downward (in the-Z direction) from the first body part 1231 and having the opening 124 formed thereon. The second body part 1232 may be composed of a plurality of members arranged to be spaced apart from each other, and spaces formed by the plurality of members spaced apart from each other may become the openings 124.
The opening 124 of the second inner case 120b may be covered by the cover part 150 having the plurality of holes 151. That is, the cover part 150 may be coupled to the second inner case 120b to cover the opening 124. As an example, the cover part 150 may have a substantially cylindrical shape with the top (+Z direction) and bottom (−Z direction) open.
The scattering prevention part 130 may be coupled to the lower side (−Z direction) of the second inner case 120b. When the inner case 120 is combined with the outer case 110, the scattering prevention part 130 may be disposed to not be into contact with and be spaced apart from a lower surface of the inner circumferential surfaces 112 of the outer case.
The scattering prevention part 130 may include the scattering prevention body 131 having a substantially cylindrical shape, and the scattering prevention rib 132 formed to protrude in a spiral shape on the outer circumferential surface of the scattering prevention body 131 along the longitudinal direction of the scattering prevention body 131. When the inner case 120 is combined with the outer case 110, the scattering prevention rib 132 may be disposed to not be into contact with and be spaced apart from a side surface of the inner circumferential surfaces 112 of the outer case.
Referring to
The rotor 310 may include the rotor body 311 extending in one direction and the rotor head 312 formed at one end. More specifically, the blade 330 may be disposed along the outer circumference of the rotor head 312.
When wind passed through the dust collector 200 blows toward the blade 330 from the lower side in a direction parallel to a direction in which the rotor body 311 extends, the blade 330 may be disposed to be inclined so that the rotation body 300 rotates in the first direction r1.
More specifically, the blade 330 may be disposed to be inclined to have a negative inclination θ1 with respect to a tangential direction K1 in the first direction r1. In this case, when air flows in a direction (+Z direction) from a lower side of the blade 330 toward an upper side (F7), the blade 330 may rotate the rotation body 300 in the first direction r1 by the flow of air.
As confirmed through
The dust collector 200 may include the dust collector body 220 having a substantially cylindrical shape, and the dust collection rib 210 formed to protrude outward from the dust collector body inner part 221 of the dust collector body 220. The dust collection ribs 210 may be arranged to protrude along the dust collector body inner part 221.
The dust collector 200 may be provided to rotate in combination with the rotation body 300. More specifically, the rotor body 311 of the rotation body 300 may be disposed to be inserted into a dust collector hole 280 of the dust collector 200. The dust collector hole 280 may be formed at a center of rotation of the dust collector body 220 to penetrate the dust collector body 220 in the vertical direction (+-Z direction).
The dust collector 200 may include a first coupling part 270 formed on an inner circumferential surface of the dust collector body 220 formed to surround the dust collector hole 280. The rotor body 311 may include a second coupling part 360 formed on an outer circumferential surface of the rotor body 311 along a longitudinal direction of the rotor body 311. The first coupling part 270 and the second coupling part 360 may be coupled to be detachable from each other.
As an example, the first coupling part 270 may include the protruding part formed to protrude inward, and the second coupling part 360 may include the groove part formed along the longitudinal direction of the rotor body 311 to allow the protruding part to be inserted.
When the rotation body 300 is combined with the dust collector 200, the dust collector 200 may also be provided to rotate according to the rotation of the rotation body 300.
As an example, when the blade 330 of the rotation body 300 receives a force from the flow of air and rotate the rotation body 300 in the first direction r1, the dust collector 200 may also rotate in the first direction r1 by receiving the rotational force of the rotation body 300.
The dust collector 200 may separate foreign substances from air by colliding with the foreign substances in the air through rotation. Or, the dust collector 200 may be provided to rotate air and foreign substances on the dust collector 200 side through rotation so that the foreign substances are separated from the air by the centrifugal force.
As described above, because the rotation body 300 is provided to be rotatable due to the air flow by the intake device 10a and the dust collector 200 is provided to be rotatable by the rotation of the rotation body 300, the cleaner 1 according to one example may not include a separate electronic device (motor, etc.) for rotating the dust collector 200. Therefore, the cleaner 1 according to one example may have lower power consumption when the cleaner 1 operates, reduce noise, and be lighter in weight.
As an example, the dust collection rib 210 of the dust collector 200, which protrudes in a radial direction K2 from the dust collector body inner part 221, may be formed to be inclined at a predetermined angle 02 toward a tangential direction K3 in a direction opposite to the first direction r1. Therefore, when the dust collector 200 rotates in the first direction r1, the air and foreign substances on the dust collector 200 side may rotate smoothly, or the foreign substances may collide more effectively and be separated from the air.
As an example, the blade 330 may include a first blade 330a provided on the outer circumferences of the rotor 310, and a second blade 330b provided on an opposite side of the first blade 330a with respect to the rotor 310. A length from one end of the first blade 330a in the radial direction to one end of the second blade 330b in the radial direction may be defined as L1.
As an example, a diameter of the dust collector body 220 may be defined as L2. Herein, the diameter of the dust collector body 220 may refer to a diameter of the dust collector body outer part 222.
L1 may be provided to be smaller than L2. Therefore, dust located on the dust collector 200 and the rotation body 300 in an outer direction may first come into contact with the dust collector 200. Accordingly, the rotation body 300 may be provided such that air from which foreign substances have been removed comes into contact therewith, thereby minimizing damage to the rotation body 300.
As an example, the rotation body 300 may be disposed downstream of the dust collector 200 with respect to the airflow direction. Accordingly, air from which foreign substances have been removed may flow through the rotation body 300, thereby minimizing damage to the rotation body 300.
Referring to
The intake device 10a may adjust the intensity of the intake force and intake airflow by adjusting a driving force of the intake motor 18a. The driving force of the intake motor 18a may be controlled by manipulating the power button provided on the operation unit 17 (see
As an example, when the user sets the driving force of the intake motor 18a to maximum, the intake motor 18a may generate a high-speed intake airflow into the dust collection device 10b. As a rotation body 500 is provided to be rotatable by the intake airflow, the faster the intake airflow, the faster the rotation body 500 may rotate. When the rotation body 500 rotates fast, the dust collector 200 may also rotate faster. When the rotation body 500 and the dust collector 200 rotate faster than a rotation speed required to collect foreign substances from air, more severe vibration and noise may occur.
At this time, the first region 531 of the blade 530 may be provided to be deformed toward the intake device 10a when coming into contact with the intake airflow at a determined speed or higher. The above-described deformation may include a case of being bent toward the intake device 10a by being elastically deformed.
In this case, a contact area between the blade 530 and air is further reduced, so that the rotational force generated in the rotation body 500 may be reduced despite the flow of intake airflow. Accordingly, the rotation of the rotation body 500 may be reduced to an appropriate level, thereby reducing vibration and noise.
All of the above descriptions are merely examples for explanation, and the speed of the intake airflow generated depending on the driving force of the intake motor 18a as described above may be varied. Additionally, an elastic modulus of the first region 531, which is deformed by coming into contact with the intake airflow, may be appropriately adjusted depending on a usage environment of the cleaner. An area of a region in which the blade 530 comes into contact with air as the first region 531 is deformed depending on the intake airflow may also be appropriately adjusted depending on the usage environment.
In addition, though it has been described above that the first region 531 and the second region 532 may include different materials, both the first region 531 and the second region 532 may be formed of the same material capable of being elastically deformed by the external force.
Referring to
The bypass hole 142 may be formed at a height corresponding to a height at which the blade 330 of the rotation body 300 is disposed.
The inner case 120 may include a bypass door 141 provided to open and close the bypass hole 142. The bypass door 141 may be rotatably disposed on the first inner case 120a to open and close the bypass hole 142. The bypass door 141 may be opened in a direction toward the inside of the inner case 120 to open the bypass hole 142.
When air flows from the first dust collection chamber S1 into the inner case 120, a case in which the plurality of holes 151 of the cover part 150 covering the opening 124 of the inner case 120 is clogged with foreign substances may occur.
In this case, the air in the first dust collection chamber S1 may no longer be able to flow into the inner case 120. Because the intake device 10a continues to draw in air from the dust collection device 10b to the intake device 10a, an internal air pressure of the inner case 120 directly communicating with the intake device 10a may be relatively lower than that of the first dust collection chamber S1, which is the outside of the inner case 120.
Because the air pressure in the first dust collection chamber S1 is relatively higher than the air pressure in the inner case 120, a pressure may be applied from the first dust collection chamber S1 toward the inside of the inner case 120. The bypass door 141 may rotate in a direction toward the inside of the inner case 120 by the pressure to open the bypass hole 142. Therefore, the air in the first dust collection chamber SI may flow into the inner case 120 through the bypass hole 142, and may continuously rotate the rotation body 300 to rotate the dust collector 200. Therefore, the operational reliability of the cleaner 1 may be improved.
Referring to
The robot cleaner 2 may draw in foreign substances on a bottom surface while moving along the bottom surface. Paths along which the robot cleaner 2 moves may be provided according to designation of the user, or may be provided automatically by a detection sensor of the robot cleaner 2.
The robot cleaner 2 may include a brush assembly 76 provided to draw in foreign substances from the surface to be cleaned. The brush assembly is disposed in a cleaner intake port 73 to effectively collect foreign substances into the robot cleaner 2.
The robot cleaner 2 may include an outer housing 72 with an accommodating space 78 formed therein, and a cleaner cover 71 provided to cover an open upper surface of the outer housing 72. Electrical components may be disposed inside the outer housing 72. The cleaner cover 71 may be detachably coupled to the outer housing 72.
The robot cleaner 2 may include an operation button 75. The user may control the robot cleaner 2 through the operation button 75.
The robot cleaner 2 may include a dust collection chamber 78. The dust collection chamber 78 may be provided in an inner space 78 of the outer housing 72.
The robot cleaner 2 may include an intake flow path 77 communicating the cleaner intake port 73 and the dust collection chamber 78. Foreign substances and air drawn into the cleaner intake port 73 may flow into the dust collection chamber 78 through the intake flow path 77.
The rotation body 300 and the dust collector 200 accommodated in the case 100 may be disposed in the dust collection chamber 78. The rotation body 300 may be provided to be rotatable through an intake airflow drawn into the robot cleaner 2, and the dust collector 200 may rotate by being detachably combined with the rotation body 300. Foreign substances separated from air by the dust collector 200 may be collected inside the dust collection chamber 78.
A cleaner 1 according to an embodiment includes a case 100 and an intake motor 18a provided to draw in air containing foreign substances into the case 100. The cleaner 1 includes a dust collector 200 disposed on an internal path of the case 100 through which the air flows and provided to be rotatable to separate the foreign substances from the air by rotating the drawn air. The cleaner 1 includes a rotation body 300 disposed further downstream than the dust collector 200 in an airflow direction of the air, provided to rotate by coming into contact with the air passed through the dust collector 200, and provided to rotate the dust collector 200 by being combined with the dust collector 200.
The rotation body 300 may include rotor 310 provided to extend in a direction parallel to a direction in which the air passed through the dust collector 200 flows. The rotation body 300 may include blades 330 arranged along outer circumferences of the rotor 310 to rotate the rotor 310 by coming into contact with the air passed through the dust collector 200. The dust collector 200 may be coupled to the rotor 310 to be rotated by the rotation of the rotor 310.
The rotor 310 may include the rotor body 311 disposed to be inserted into the dust collector 200. The rotor 310 may include the rotor head 312 formed at one end of the rotor body 311 to be disposed outside the dust collector 200 and including the blades 330. The dust collector 200 may include a first coupling part 270 formed on an inner circumferential surface thereof. The rotor body 311 may include a second coupling part 360 formed on an outer circumferential surface of the rotor body 311 to be able to be coupled to the first coupling part 270.
The first coupling part 270 may include a protruding part formed to protrude from the inner circumferential surface toward the inside of the dust collector 200. The second coupling part 360 may include a groove part provided such that the protruding part is inserted therein. The rotation body 300 may be detachably combined with the dust collector 200.
The blades 330 may include a first blade 330a provided on the outer circumferences of the rotor 310. The blades 330 may include a second blade 330b provided on an opposite side of the first blade 330a with respect to the rotor 310. The dust collector 200 may include a dust collector body 220 having a cylindrical shape. A length L1 from one end of the first blade 330a to one end of the second blade 330b may be provided to be smaller than a diameter L2 of the dust collector body 220.
The case 100 may include an outer case 110 including an intake hole 111 provided to allow the air to be drawn into the inside of the case 100. The case 100 may include an inner case 120 provided to be accommodated in the outer case 110 to rotatably accommodate the dust collector 200 and the rotation body 300. The inner case 120 may include an opening 124 formed to allow air drawn into the outer case 110 to flow into the inner case 120.
The case 100 may further include a cover part 150 provided to cover the opening 124 and including a plurality of holes 151 formed to allow air to pass into the inner case 120. The inner case 120 may include a bypass hole 142 formed to allow air to be introduced into the inner case 120 when the air does not pass through the plurality of holes 151. The inner case 120 may include a bypass door 141 provided to be rotatable to open and close the bypass hole 142.
The case 100 may further include a scattering prevention part 130 coupled to a lower side of the inner case 120 to prevent foreign substances accumulated inside the outer case 110 from being introduced into the opening 124. The scattering prevention part 130 may include a scattering prevention body 131 extending downward from the inner case 120. The scattering prevention part 130 may include a scattering prevention rib 132 extending spirally along a longitudinal direction of the scattering prevention body 131 on an outer circumferential surface of the scattering prevention body 131 and protruding toward an inner circumferential surface 112 of the outer case.
The dust collector 200 may include a dust collector body 220 provided to separate foreign substances from the air. The dust collector 200 may include a dust collector rotation shaft 230 extending downward from a lower surface of the dust collector body 220 to be inserted into the inner case 120. The dust collector 200 may include a dust collector bearing 240 coupled to the dust collector rotation shaft 230 to rotatably support the dust collector 200 on the inner case 120. The dust collector 200 may include a first guard part 250 formed to be spaced outward from the dust collector rotation shaft 230 and protruding downward to prevent foreign substances from flowing into the dust collector bearing 240 by covering the dust collector rotation shaft 230 from the outside.
The inner case 120 may include a first rotation support part 125 provided to protrude upward to form a first insertion groove 126 into which the dust collector bearing 240 and the dust collector rotation shaft 230 are inserted. The first rotation support part 125 may be disposed to be inserted into a space formed by the dust collector rotation shaft 230 and the first guard part 250 being spaced apart.
The case 100 may include an inner case 120 provided to rotatably support the rotation body 300. The rotation body 300 may include a rotor rotation shaft 313 extending upward from the rotor head 312 to be inserted into the inner case 120. The rotation body 300 may include a rotor bearing 314 coupled to the rotor rotation shaft 313 to rotatably support the rotation body 300 on the inner case 120. The rotation body 300 may include a second guard part 340 formed to be spaced outward from the rotor rotation shaft 313 and protruding upward to prevent foreign substances from flowing into the rotor bearing 314 by covering the rotor rotation shaft 313 from the outside.
The rotation body 300 may further include a third guard part 350 formed to be spaced outward from the second guard part 340 and protruding upward to cover the second guard part 340 from the outside. The inner case 120 may include a protruding rib 127 formed to protrude downward and disposed to be inserted into a space formed by the second guard part 340 and the third guard part 350 being spaced apart.
The inner case 120 may include a rotation guide 122 provided to guide air so that the air passed through the intake hole 111 rotates in a first direction r1 inside the outer case 110. The rotation body 300 may include rotor 310 provided to extend in a direction parallel to a direction in which the air passed through the dust collector 200 flows. The rotation body 300 may include blades 330 disposed to be inclined to have a negative inclination with respect to a tangential direction of the first direction r1 so as to rotate the rotor 310 in the first direction r1 by coming into contact with the air passed through the dust collector 200 and arranged along outer circumferences of the rotor 310.
The dust collector 200 may include a dust collector body 220 combined with the rotation body 300 to rotate in the first direction r1. The dust collector 200 may include a dust collection rib 210 protruding from an outer circumference of the dust collector body 220 in a radial direction of the dust collector body 220 and formed to be inclined toward a tangential direction in a direction opposite to the first direction r1.
A cleaner 1 according to an embodiment includes an intake motor 18a provided to generate an intake force, and an impeller 19b provided to be driven by the intake motor 18a to generate an intake airflow drawing in air containing foreign substances. The cleaner 1 includes a dust collector 200 disposed on a path of the intake airflow and provided to be rotatable to rotate the drawn air to separate the foreign substances from the air. The cleaner 1 includes a rotation body 300 disposed further downstream than the dust collector 200 in a flow direction of the intake airflow, including rotor 310 extending in a direction parallel to the air passed through the dust collector 200 and blades 330 provided to rotate the rotor 310 by coming into contact with the air, and provided to rotate the dust collector 200 by being combined with the dust collector 200. The dust collector 200 is detachably coupled to the rotor 310.
The rotor 310 may include the rotor body 311 disposed to be inserted into the dust collector 200. The rotor 310 may include the rotor head 312 formed at one end of the rotor body 311 to be disposed outside the dust collector 200 and including the blades 330. The dust collector 200 may include a first coupling part 270 formed on an inner circumferential surface thereof. The rotor body 311 may include a second coupling part 360 formed on an outer circumferential surface of the rotor body 311 to be able to be coupled to the first coupling part 270.
The blades 330 may include a first blade 330a provided on the outer circumferences of the rotor 310. The blades 330 may include a second blade 330b provided on an opposite side of the first blade 330a with respect to the rotor 310. The dust collector 200 may include a dust collector body 220 having a cylindrical shape. A length from one end of the first blade 330a to one end of the second blade 330b may be set to be smaller than a diameter of the dust collector body 220.
The cleaner 1 may further include an inner case 120 provided to accommodate the dust collector 200 and the rotation body 300. The inner case 120 may include a rotation guide 122 provided to guide air such that the drawn air rotates in a first direction r1. The rotation body 300 may include rotor 310 provided to extend in a direction parallel to a direction in which the air passed through the dust collector 200 flows. The rotation body 300 may include blades 330 disposed to be inclined to have a negative inclination with respect to a tangential direction of the first direction r1 so as to rotate the rotor 310 in the first direction r1 by coming into contact with the air passed through the dust collector 200 and arranged along outer circumferences of the rotor 310.
The dust collector 200 may include a dust collector body 220 provided to rotate in the first direction r1 by being combined with the rotation body 300. The dust collector 200 may include a dust collection rib 210 protruding from an outer circumference of the dust collector body 220 in a radial direction of the dust collector body 220 and formed to be inclined toward a tangential direction in a direction opposite to the first direction r1.
According to the present disclosure, because a separate motor for rotating a dust collector is not included, power consumption can be reduced and the weight of a cleaner can become lighter.
According to the present disclosure, because a flow of foreign substances into a bearing, which rotatably supports the dust collector and a rotation body, can be prevented by a guard part, operational reliability of the cleaner can be improved.
According to the present disclosure, because even when a plurality of holes of a cover part is blocked by foreign substances, air can flow to the dust collector through a bypass hole, the operational reliability of the cleaner can be improved.
Effects obtainable from the present disclosure are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description below.
The foregoing has illustrated and described specific embodiments. However, it should be understood by those of skilled in the art that the present disclosure is not limited to the above-described embodiments, and various changes and modifications may be made without departing from the technical idea of the present disclosure described in the following claims.
| Number | Date | Country | Kind |
|---|---|---|---|
| 10-2023-0178138 | Dec 2023 | KR | national |
This application is a continuation application, filed under 35 U.S.C. § 111(a), of International Application PCT/KR2024/014697 filed Sep. 27, 2024, and is based on and claims priority under 35 U.S.C. § 119 to Korean Patent Applications No. 10-2023-0178138, filed on Dec. 8, 2023, in the Korean Intellectual Property Office, the disclosures of which are incorporated by reference herein in their entireties.
| Number | Date | Country | |
|---|---|---|---|
| Parent | PCT/KR2024/014697 | Sep 2024 | WO |
| Child | 18947586 | US |
