This application is a U.S. National Stage Application which claims the benefit under 35 U.S.C. § 371 of International Patent Application No. PCT/KR2018/015404 filed on Dec. 6, 2018, which claims foreign priority benefit under 35 U.S.C. § 119 of Korean Patent Application No. 10-2017-0168291 filed on Dec. 8, 2017 in the Korean Intellectual Property Office, the contents of both of which are incorporated herein by reference.
The disclosure relates to an electric dust collection device using an electrostatic force, and more particularly, to an electric dust collection device capable of automatic cleaning and an air conditioner having the same.
Fine materials such as dust, microorganisms, aerosols, etc. contained in air inside the room may adversely affect human health.
Electric dust collection devices are widely used to remove such fine materials. The electric dust collection device is provided in an air conditioner such as an air purifier, an air con, a humidifier, and the like to remove fine materials contained in the indoor air.
The electric dust collection device includes electrodes and a flow path such that the fine materials are charged and then attached by electrostatic force. Because the electric dust collection device utilizes an electrostatic force, it is effective for removing small sized fine materials, and can minimize the blockage of the flow path, thereby reducing the air flow loss.
An example of the conventional electric dust collection device is illustrated in
Referring to
The dust collecting part 5 serves to collect the contaminants charged by the charging part 3. The dust collecting part 5 is formed in a structure in which a plurality of flat high voltage electrodes 6 and a plurality of flat low voltage electrodes 7 are stacked at regular intervals. When a predetermined voltage is applied between the positive electrode (high voltage electrode) 6 and the negative electrode (low voltage electrode) 7 of the dust collecting part 5, an electric field is formed between the positive electrode 6 and the negative electrode 7. For example, when the contaminants contained in air is charged to have positive (+) polarity while the air passes through the charging part 3, the contaminants charged with positive polarity are attached to the negative electrode 7 while passing through the dust collecting part 7, thereby being removed from the air.
However, in such a conventional electric dust collection device 1, as the contaminants are collected, the electrostatic force is weakened by the collected contaminants, so the dust collection performance is lowered.
Therefore, manufactures of the electric dust collection devices are instructing users to manually clean the dust collecting plates of the electric dust collection device periodically.
However, there is a problem that it is inconvenient to manually wash the dust collecting plates to which fine materials are attached. In addition, when the dust collecting plates are washed after the electric dust collection device has been operated for a long time, it is difficult to clean the dust collecting plates because the physical properties of the fine materials are changed due to the high voltage and then fixed to the dust collecting plates.
The disclosure has been developed in order to overcome the above drawbacks and other problems associated with the conventional arrangement. An aspect of the disclosure relates a belt type electric dust collection device that does not require manual cleaning and can automatically clean a dust collecting belt to which contaminants are attached.
According to an aspect of the disclosure, a belt type electric dust collection device may include a dust collecting belt arranged to overlap in a zigzag form, the dust collecting belt including a plurality of flat portions facing parallel to each other and spaced apart by a predetermined distance and a plurality of first bent portions and a plurality of second bent portions formed at both ends of the plurality of flat portions; a plurality of first rollers disposed in a line in the plurality of first bent portions of the dust collecting belt, the plurality of first rollers configured to support and guide the dust collecting belt; a plurality of second rollers disposed in a line in the plurality of second bent portions of the dust collecting belt, the plurality of second rollers configured to support and guide the dust collecting belt; a plurality of electrode plates provided between the plurality of flat portions of the dust collecting belt; a belt cleaning part disposed at one side of the dust collecting belt and configured to remove contaminants from both surfaces of the dust collecting belt; and a drive part provided to drive at least one of the plurality of first rollers so as to move the dust collecting belt.
The dust collecting belt may be formed of one endless belt connected to both ends thereof.
The drive part may include a roller gear coaxially disposed in at least one of the plurality of first rollers; a worm gear meshing with the roller gear; and a drive motor configured to rotate the worm gear.
The drive part may include a pinion gear disposed on a shaft of the drive motor; and a spur gear disposed coaxially with the worm gear and engaged with the pinion gear.
The belt type electric dust collection device may include at least one backup roller disposed at one side of the at least one first roller provided with the roller gear and configured to press the dust collecting belt against the at least one first roller.
The belt cleaning part may be disposed at one side of the plurality of first rollers in a longitudinal direction of the dust collecting belt, and the belt type electric dust collection device may include a plurality of guide rollers configured to guide the dust collecting belt to the belt cleaning part.
The belt type electric dust collection device may include a first winding roller and a second winding roller disposed at both ends of the dust collecting belt and configured to wind and unwind the dust collecting belt.
The drive part may include a roller gear coaxially disposed in at least one of the plurality of first rollers; a first winding gear train and a second winding gear train configured to respectively transmit a rotational force to the first winding roller and the second winding roller; a worm gear meshing with the roller gear, the first winding gear train, and the second winding gear train; and a drive motor configured to rotate the worm gear.
The first regulating roller and the second regulating roller may include an one-way clutch, respectively.
The belt cleaning part may include a first cleaning member configured to remove contaminants attached to one surface of the dust collecting belt; a second cleaning member configured to remove contaminants attached to an opposite surface of the dust collecting belt; and a contaminants container configured to collect the contaminants removed from the dust collecting belt by the first cleaning member and the second cleaning member.
The first cleaning member and the second cleaning member may be disposed to face each other with the dust collecting belt interposing therebetween.
The belt type electric dust collection device according to an embodiment of the disclosure having the above-described structure may be disposed in an air conditioner.
A belt type electric dust collection device according to an embodiment of the disclosure having the above-described structure may automatically remove contaminants attached to a dust collecting belt. Accordingly, the belt type electric dust collection device can maintain an air cleaning capability almost permanently without a user having to periodically clean the electric dust collection device.
In addition, the belt type electric dust collection device according to an embodiment of the disclosure as described above can automatically remove contaminants attached to the dust collecting belt, so that it is not necessary to disassemble a ceiling type air conditioner for cleaning. Therefore, the ceiling type air conditioner using the belt type electric dust collection device according to an embodiment of the disclosure has an advantage of easy maintenance.
Hereinafter, embodiments of a belt type electric dust collection device according to the disclosure and an air conditioner including the same will be described in detail with reference to the accompanying drawings.
The matters defined herein, such as a detailed construction and elements thereof, are provided to assist in a comprehensive understanding of this description. Thus, it is apparent that embodiments may be carried out without those defined matters. Also, well-known functions or constructions are omitted to provide a clear and concise description of embodiments. Further, dimensions of various elements in the accompanying drawings may be arbitrarily increased or decreased for assisting in a comprehensive understanding.
The terms ‘first’, ‘second’, etc. may be used to describe diverse components, but the components are not limited by the terms. The terms may only be used to distinguish one component from the others. For example, without departing from the scope of the disclosure, a first component may be referred to as a second component, and similarly, a second component may also be referred to as a first component.
The terms used in embodiments of the disclosure may be construed as commonly known to those skilled in the art unless otherwise defined.
Further, the terms ‘leading end’, ‘rear end’, ‘upper side’, ‘lower side’, ‘top end’, ‘bottom end’, etc. used in the disclosure are defined with reference to the drawings. However, the shape and position of each component are not limited by the terms.
Referring to
The dust collecting belt 20 is formed of an endless belt whose both ends are connected to each other, and is arranged to be overlapped in a zigzag form. Accordingly, the dust collecting belt 20 includes a plurality of flat portions 21 which face each other in parallel and are spaced apart from each other by a predetermined distance and a plurality of first bent portions 22 and second bent portions 23 provided at both ends of the plurality of flat portions 21. The outside air passes between the plurality of flat portions 21.
The dust collecting belt 20 is formed such that contaminants charged in the charging part 3 (see
The plurality of first rollers 30 and the plurality of second rollers 40 are spaced apart from each other by a predetermined interval and are disposed in parallel with each other. The plurality of first rollers 30 and the plurality of second rollers 40 support the dust collecting belt 20 so that the dust collecting belt 20 maintains an overlapped state in a zigzag form.
Accordingly, the dust collecting belt 20 is provided to sequentially wind the plurality of first rollers 30 and second rollers 40 as illustrated in
Accordingly, the plurality of first rollers 30 are disposed at one ends of the plurality of flat portions 23, that is, at the plurality of first bent portions 21 of the dust collecting belt 20 to support and guide the dust collecting belt 20 so that the dust collecting belt 20 may be moved. The plurality of first rollers 30 are disposed to be spaced apart at equal intervals.
The plurality of second rollers 40 are disposed at the other ends of the plurality of flat portions 23, that is, at the plurality of second bent portions 22 of the dust collecting belt 20 to support and guide the dust collecting belt 20 so that the dust collecting belt 20 may be moved. The plurality of second rollers 40 are formed to have the same diameter as the plurality of first rollers 30, and are disposed to be spaced apart from each other at the same interval as that between the plurality of first rollers 30. Therefore, the plurality of flat portions 23 of the dust collecting belt 20 are spaced apart by the diameters of the first roller 30 and the second roller 40.
In addition, the plurality of second rollers 40 are provided so as not to face the plurality of first rollers 30 in a direction parallel to the plurality of flat portions 23. Therefore, a plurality of first openings 11 facing the plurality of second rollers 40 are provided between the plurality of first rollers 30. Similarly, a plurality of second openings 12 facing the plurality of first rollers 30 are provided between the plurality of second rollers 40.
At least some of the plurality of first rollers 30 and the plurality of second rollers 40 are formed of a conductive material to allow electricity to flow to the dust collecting belt 20.
A roller electricity conducting member 41 is electrically connected to the plurality of first rollers 30 or the plurality of second rollers 40. Therefore, a voltage may be applied from a power supply part 90 to the dust collecting belt 20 through the roller electricity conducting member 41, the first roller 30, and/or the second roller 40.
The plurality of electrode plates 50 are provided between the plurality of flat portions 23 of the dust collecting belt 20. The plurality of electrode plates 50 may include a first electrode plate 51 and a second electrode plate 52. In detail, the plurality of first electrode plates 51 are disposed through the plurality of first openings 11 of the dust collecting belt 20, and the plurality of second electrode plates 52 are disposed through the plurality of second openings 12. The plurality of first electrode plates 51 and the plurality of second electrode plates 52 are formed in the same manner, but the directions to be inserted between the plurality of flat portions 23 of the dust collecting belt 20 are different.
The plurality of electrode plates 50 are for forming an electric field between the plurality of flat portions 23 of the dust collecting belt 20 so that the charged contaminants are attached to the dust collecting belt 20. A voltage having a polarity opposite to the dust collecting belt 20 is applied to the plurality of electrode plates 50. For example, when a negative voltage or a low voltage is applied to the dust collecting belt 20 as illustrated in
Electrode plate conducting members 55 and 56 are electrically connected to the plurality of electrode plates 50. In detail, the plurality of first electrode plates 51 disposed in the plurality of first openings 11 of the dust collecting belt 20 are electrically connected to a first electrode plate conducting member 55, and the plurality of second electrode plates 52 disposed in the plurality of second openings 12 are electrically connected to a second electrode plate conducting member 56. The same voltage is applied from the power supply part 90 to the first electrode plate conducting member 55 and the second electrode plate conducting member 56.
The belt cleaning part 60 is disposed at one side of the dust collecting belt 20 and is formed to remove contaminants attached to both surfaces of the dust collecting belt 20. For example, the belt cleaning part 60 is spaced apart by a predetermined distance from the plurality of first rollers 30 at one side of the plurality of first rollers 30 in the longitudinal direction of the dust collecting belt 20, that is, in the longitudinal direction of the plurality of electrode plates 50.
On the left side and the right side of the belt cleaning part 60, a plurality of guide rollers 70 configured to guide the dust collecting belt 20 which comes out from plurality of first rollers 30 to the belt cleaning part 60 and to return the dust collecting belt 20 which has passed through the belt cleaning part 60 back to the plurality of first rollers 30 may be disposed.
In the case of the embodiment illustrated in
The drive part (not illustrated) generates a driving force so that the dust collecting belt 20 can be moved by the plurality of first rollers 30 and the plurality of second rollers 40. The drive part is formed to drive at least one first roller 30 among the plurality of first rollers 30.
Hereinafter, the belt type electric dust collection device according to an embodiment of the disclosure will be described in detail with reference to
Referring to
The frame 15 fixes and supports the plurality of first rollers 30, the plurality of second rollers 40, the plurality of electrode plates 50, the belt cleaning part 60, and the drive part 80. An opening 16 is provided in a portion of the frame 15 corresponding to the dust collecting belt 20 so that air drawn in from the outside can pass therethrough. In
The dust collecting belt 20 is formed of an endless belt whose both ends are connected to each other, and is disposed to be overlapped in a zigzag form. Accordingly, the dust collecting belt 20 includes the plurality of flat portions 23 which face each other in parallel and are spaced apart from each other by a predetermined distance and the plurality of first bent portions 21 and second bent portions 22 provided at both ends of the plurality of flat portions 23. Since the plurality of flat portions 23 are positioned in the opening 16 of the frame 15, outside air passes between the plurality of flat portions 23 of the dust collecting belt 20.
The dust collecting belt 20 is formed such that contaminants charged in the charging part 3 may be attached thereto. Therefore, the dust collecting belt 20 is formed in a long film shape and is formed of a material having conductivity. For example, the dust collecting belt 20 may be formed of a plastic film having carbon coating on both surfaces thereof to have conductivity. Alternatively, the dust collecting belt 20 may be formed of a plastic film in which a conductive metal such as aluminum is deposited on both surfaces thereof.
The plurality of first rollers 30 and the plurality of second rollers 40 are disposed in the frame 15 to be spaced apart from each other by a predetermined interval. The plurality of first rollers 30 and the plurality of second rollers 40 support the dust collecting belt 20 so that the dust collecting belt 20 may move in a zigzag form while maintaining a predetermined interval and an overlapped state.
Accordingly, the dust collecting belt 20 is disposed to sequentially wind the plurality of first rollers 30 and second rollers 40 as illustrated in
Accordingly, the plurality of first rollers 30 are disposed at one ends of the plurality of flat portions 23, that is, at the plurality of first bent portions 21 of the dust collecting belt 20 to support and guide the dust collecting belt 20 so that the dust collecting belt 20 can move. The plurality of first rollers 30 are disposed on the frame 15 to be spaced apart at equal intervals. The plurality of first rollers 30 are respectively rotatably supported by the frame 15.
The plurality of second rollers 40 are disposed at the other ends of the plurality of flat portions 23, that is, at the plurality of second bent portions 22 of the dust collecting belt 20 to support and guide the dust collecting belt 20 so that the dust collecting belt 20 can move. The plurality of second rollers 40 are formed to have the same diameter as the plurality of first rollers 30, and are disposed on the frame 15 to be spaced apart from each other at the same interval as that between the first rollers 30. Therefore, the plurality of flat portions 23 of the dust collecting belt 20 are spaced apart by the diameters of the first roller 30 and the second roller 40. The plurality of second rollers 40 are respectively rotatably supported by the frame 15.
In addition, the plurality of second rollers 40 are provided so as not to face the plurality of first rollers 30 in a direction parallel to the plurality of flat portions 23, that is, in the longitudinal direction of the frame 15. Therefore, when the dust collecting belt 20 is zigzagly disposed on the plurality of first rollers 30 and the plurality of second rollers 40, a plurality of first openings 11 facing the plurality of second rollers 40 are provided between the plurality of first rollers 30 around which the dust collecting belt 20 is wound. Similarly, a plurality of second openings 12 facing the plurality of first rollers 30 are provided between the plurality of second rollers 40 around which the dust collecting belt 20 is wound.
At least some of the plurality of first rollers 30 and the plurality of second rollers 40 are formed of a conductive material to allow electricity to flow to the dust collecting belt 20. At this time, only the outer circumferential surfaces of the first roller 30 and the second roller 40 may be formed of a conductive material. Alternatively, the entire first roller 30 and the entire second roller 40 may be formed of a conductive material.
The roller electricity conducting member 41 (see
The plurality of electrode plates 50 (see
The plurality of electrode plates 50 are configured to form an electric field between the plurality of flat portions 23 of the dust collecting belt 20 so that the charged contaminants are attached to the dust collecting belt 20. A voltage having a polarity opposite to the dust collecting belt 20 is applied to the plurality of electrode plates 50. For example, when a negative (−) voltage or a low voltage is applied to the dust collecting belt 20 as illustrated in
The plurality of electrode plates 50 are formed of a conductive material. For example, the electrode plates 50 may be formed of a plastic film having a carbon coating on both surfaces thereof.
Electrode plate conducting members 55 and 56 are electrically connected to the plurality of electrode plates 50. In detail, the plurality of first electrode plates 51 disposed through the plurality of first openings 11 between the plurality of first rollers 30 are electrically connected to a first electrode plate conducting member 55, and the plurality of second electrode plates 52 disposed through the plurality of second openings 12 between the plurality of second rollers 40 are electrically connected to a second electrode plate conducting member 56. The first electrode plate conducting member 55 is provided on the frame 15 at one side of the plurality of first rollers 30, and the second electrode plate conducting member 56 is provided on the frame 15 at one side of the plurality of second rollers 40. The same voltage is applied from the power supply part 90 to the first electrode plate conducting member 55 and the second electrode plate conducting member 56.
In this embodiment, the electrode plate conducting members 55 and 56 and the roller electricity conducting member 41 are provided such that a voltage of 6 kV is applied between the electrode plates 50 and the dust collecting belt 20. In addition, a gap between the electrode plate 50 and the flat portion 23 of the dust collecting belt 20 may be provided to be about 1.75 mm.
The drive part 80 generates a driving force so that the dust collecting belt 20 can be moved by the plurality of first rollers 30 and the plurality of second rollers 40. Therefore, the dust collecting belt 20 performs the endless track motion by the drive part 80. The drive part 80 may be provided at the rear side of the frame 15.
The drive part 80 is provided to drive at least one first roller 30 among the plurality of first rollers 30. Hereinafter, the drive part 80 will be described in detail with reference to
Referring to
The roller gear 81 is coaxially disposed at the shaft of at least one first roller 30 among the plurality of first rollers 30. In the case of this embodiment, one roller gear 81 is provided per two first rollers 30 in the plurality of first rollers 30. In other words, the roller gears 81 are provided one after another first roller 30 in the plurality of first rollers 30. For example, in the case where twelve first rollers 30 are disposed in a line as illustrated in
The worm gear 83 is provided to mesh with the plurality of roller gears 81 provided in the plurality of first rollers 30. In the case of
Both ends of the worm gear 83 are rotatably supported by bearings provided at a pair of support brackets 82 disposed on the frame 15. The worm gear 83 is disposed to be rotatable by the drive motor 85. The worm gear 83 may be directly connected to the shaft of the drive motor 85. Alternatively, a reducer may be provided between the worm gear 83 and the drive motor 85.
In the case of the embodiment as illustrated in
The drive motor 85 may use a motor that can rotate in one direction or in both directions.
A backup roller 33 may be provided at one side of the first roller 30 in which the roller gear 81 is disposed to face the first roller 30 and be rotated by the rotation of the first roller 30. In other words, the backup roller 33 may be provided to press the dust collecting belt 20 against the first roller 30. Because the backup roller 33 is rotatably disposed in the frame 15, the backup roller 33 rotates when the first roller 30 rotates. Thus, a large frictional force may be generated in the dust collecting belt 20 passing between the first roller 30 and the backup roller 33. Therefore, when the roller gear 81 is rotated by the drive motor 85, the dust collecting belt 20 may be moved by the first roller 30. In this case, a rubber layer may be formed on the outer circumferential surface of the backup roller 33 so as to increase the contact area with respect to the first roller 30.
In the case of the embodiment illustrated in
In the above description, the roller gears 81 are provided one for every other first roller 30 in the plurality of first rollers 30. However, the arrangement of the roller gears 81 is not limited thereto. Depending on the driving force of the first rollers 30 for conveying the dust collecting belt 20, the number of roller gears 81 provided in the plurality of first rollers 30 may be reduced or increased.
In the case of the embodiment illustrated in
The belt cleaning part 60 is disposed at one side of the dust collecting belt 20 and is provided to remove contaminants attached to both surfaces of the dust collecting belt 20. In the case of the belt type electric dust collection device 10 according to this embodiment as illustrated in
The belt cleaning part 60 is disposed to be spaced apart from the outermost first roller 30-12 among the plurality of first rollers 30 in the width direction of the dust collecting belt 20, that is, in the width direction of the frame 15.
A plurality of guide rollers 70 for guiding the dust collecting belt 20 which comes out from the outermost first roller 30-12 to the belt cleaning part 60 and returning the dust collecting belt 20 which has passed the belt cleaning part 60 back to the opposite outermost first roller 30-1 among the plurality of first rollers 30 may be disposed on both sides of the belt cleaning part 60.
A roller gear 81′ may be disposed in one guide roller 70-1 for guiding the dust collecting belt 20 coming out from the belt cleaning part 60 to the plurality of first rollers 30 among the plurality of guide rollers 70. The roller gear 81′ is meshed with the worm gear 83. Therefore, when the worm gear 83 rotates, the roller gear 81′ is rotated, and thereby the guide roller 70-1 is also rotated. At this time, a guide backup roller 71 rotated by the guide roller 70-1 may be provided to increase the frictional force between the guide roller 70-1 and the dust collecting belt 20.
The roller gear 81′ disposed in the guide roller 70-1 is formed in the same manner as the roller gears 81 provided in the plurality of first rollers 30 as described above. When the roller gear 81′ is provided in the guide roller 70-1 as described above, the dust collecting belt 20 may pass smoothly through the belt cleaning part 60.
Referring to
The first cleaning member 61 is provided to remove contaminants attached to one surface of the dust collecting belt 20, and the second cleaning member 62 is provided to remove contaminants attached to the opposite surface of the dust collecting belt 20. In other words, the second cleaning member 62 is disposed to clean the opposite surface of the dust collecting belt 20 which is not cleaned by the first cleaning member 61.
The first cleaning member 61 may include a blade 61a, a blade holder 61b configured to fix the blade 61a, and a pressing member 61c configured to press the blade 61a toward the dust collecting belt 20. The blade 61a is formed in a rectangular plate shape, and one end of the blade 61a is fixed to the blade holder 61b. The blade 61a is disposed so that an edge of the blade 61a contacts the surface of the dust collecting belt 20. At this time, the blade holder 61b is supported by the pressing member 61c so that the blade 61a applies a predetermined force to the dust collecting belt 20. A torsion spring may be used as the pressing member 61c. The blade 61a may be formed of a rubber material so as not to damage the dust collecting belt 20.
The second cleaning member 62 may include a blade 62a, a blade holder 62b configured to fix the blade 62a, and a pressing member configured to press the blade 62a toward the dust collecting belt 20 in the same manner as the first cleaning member 61. Therefore, a detailed description thereof is omitted. However, as illustrated in
As illustrated in
As another example, as illustrated in
Referring to
Therefore, when the dust collecting belt 20 passes between the first cleaning member 61 and the first support part 65, contaminants attached to one surface of the dust collecting belt 20 are removed by the first cleaning member 61. In addition, when the dust collecting belt 20 passes between the second cleaning member 62 and the second support part 66, contaminants attached to the other surface of the dust collecting belt 20 are removed by the second cleaning member 61.
As another example, as illustrated in
Referring to
The contaminants container 63 is provided to surround the first cleaning member 61 and the second cleaning member 62, and is configured to collect the contaminants removed from the dust collecting belt 20 by the first cleaning member 61 and the second cleaning member 62. In addition, the contaminants container 63 may prevent the removed contaminants from scattering to the outside when the first cleaning member 61 and the second cleaning member 62 remove the contaminants from the dust collecting belt 20. The contaminants container 63 is provided with a belt inlet 63a through which the dust collecting belt 20 is introduced between the first and second cleaning members 61 and 62 and a belt outlet 63b through which the dust collecting belt 20 passed between the first and second cleaning members 61 and 62 exits, so that the dust collecting belt 20 can pass through the contaminants container 63.
In the above description, the first cleaning member 61 and the second cleaning member 62 are formed of a rectangular plate-shaped blade. However, the first cleaning member 61 and the second cleaning member 62 are not limited thereto.
The first cleaning member and the second cleaning member may be formed of a cylindrical cleaner as illustrated in
As illustrated in
The first and second cleaning members 61′ and 62′ may be formed in a cylindrical brush as illustrated in
In addition, the first cleaning member and the second cleaning member may be formed in various shapes and of various materials as long as they can remove contaminants attached to the surface of the dust collecting belt 20 without damaging the surface of the dust collecting belt 20.
In the above description, the belt cleaning part 60 is disposed in one position. However, the number of the belt cleaning part 60 is not limited thereto. In order to quickly remove the contaminants attached to the dust collecting belt 20, a plurality of belt cleaning parts 60 may be provided.
Referring to
The belt cleaning parts 600 are formed in a blade shape, and a plurality of blades 600 are supported by one holder 601. The contaminants removed from the dust collecting belt 20 by the plurality of blades 600 may be collected by falling in a direction perpendicular to the drawing.
In
Hereinafter, an operation of the belt type electric dust collection device according to an embodiment of the disclosure will be described with reference to
The charging part 3 (see
The air having passed through the charging part 3 is introduced into the belt type electric dust collection device 10 according to an embodiment of the disclosure. The introduced air passes through the flow path 13 formed in parallel with one dust collecting belt 20 and the plurality of electrode plates 50, and then is discharged from the belt type electric dust collection device 10.
When the introduced air passes through the flow path 13 formed with dust collecting belt 20 and the plurality of electrode plates 50, the contaminants charged by the positive charges are attached to the dust collecting belt 20 serving as the negative electrode. At this time, because the dust collecting belt 20 and the plurality of electrode plates 50 having a thin thickness are disposed in parallel in the flow path 13 through which the air passes, the flow resistance acting on the introduced air may be minimized.
When the contaminants are attached to the dust collecting belt 20, the contaminants become resistance, so the contaminant collecting performance of the dust collecting belt 20 may be reduced. Therefore, when a predetermined time elapses, the dust collecting belt 20 is conveyed to the belt cleaning part 60 to remove the contaminants attached to the dust collecting belt 20.
When the drive motor 85 is turned on, the pinion gear 86 provided on the shaft of the drive motor 85 rotates. When the pinion gear 86 rotates, the spur gear 84 meshed with the pinion gear 86 is rotated. Because the spur gear 84 is integrally provided with the worm gear 83, when the spur gear 84 rotates, the worm gear 83 rotates integrally. When the worm gear 83 rotates, the plurality of roller gears 81 engaged with the worm gear 83 are rotated in one direction. When the plurality of roller gears 81 rotate, the first roller 30 coaxially disposed in each of the plurality of roller gears 81 rotates. When the plurality of first rollers 30 rotate, the dust collecting belt 20 is moved by the frictional force between the plurality of first rollers 30 and the dust collecting belt 20.
When the dust collecting belt 20 moves, a portion of the dust collecting belt 20 to which contaminants are attached passes through the belt cleaning part 60. When the dust collecting belt 20 passes through the belt cleaning part 60, the first cleaning member 61 of the belt cleaning part 60 removes the contaminants attached to one surface of the dust collecting belt 20, and the second cleaning member 62 removes the contaminants attached to the opposite surface of the dust collecting belt 20. When the dust collecting belt 20 is rotated once so that entire portions of the dust collecting belt 20 pass through the belt cleaning part 60, the contaminants attached to both surfaces of the dust collecting belt 20 are removed, so that the dust collecting belt 20 may restore the original contaminant collecting performance again.
In the above description, the dust collecting belt 20 has been cleaned at regular time intervals. However, the disclosure is not limited thereto. The disclosure may be configured not to perform a cleaning mode for separately cleaning the dust collecting belt 20, but to move the dust collecting belt 20 while the belt type electric dust collection device 10 performs the contaminant collection function, so that the contaminant collection function and the cleaning function are simultaneously performed.
Hereinafter, a belt type electric dust collection device according to another embodiment of the disclosure will be described with reference to
Referring to
The belt type electric dust collection device 100 as illustrated in
Therefore, the frame 15, the plurality of first rollers 30, the plurality of second rollers 40, the plurality of electrode plates 50, and the belt cleaning part 60 of the belt type electric dust collection device 100 according to an embodiment of the disclosure are the same as or similar to those of the belt type electric dust collection device 10 according to the above-described embodiment; therefore, detailed descriptions thereof are omitted.
One end of the dust collecting belt 20′ is fixed to the first winding roller 110, and the other end of the dust collecting belt 20′ is fixed to the second winding roller 120. The dust collecting belt 20′ has a length longer than an installation length from the first winding roller 110 to the belt cleaning part 60. The dust collecting belt 20′ has a length such that all portion corresponding to the installation length can pass through the belt cleaning part 60. Here, the installation length is referred to as a length of the dust collecting belt 20′ from the first guide roller 70-1 to a point which the dust collecting belt 20′ is in contact with the first cleaning member 61 and the second cleaning member 62 of the belt cleaning part 60 after passing the second guide roller 70-2 including a portion folded in a zigzag manner by the plurality of first rollers 30 and the plurality of second rollers 40. In order to clean the dust collecting belt 20′ with the belt cleaning part 60, all portions of the dust collecting belt 20′ corresponding to the installation length need to pass through the belt cleaning part 60. Therefore, the dust collecting belt 20′ is formed to have approximately twice the length of the installation length, and after the dust collecting belt 20′ is provided between the plurality of first rollers 30 and the plurality of second rollers 40, the portion of the remaining dust collecting belt 20′ is wound around the first winding roller 110.
Thus, in order to remove the contaminants attached to the dust collecting belt 20′, when the second winding roller 120 is rotated in the winding direction, the dust collecting belt 20′ wound around the first winding roller 110 is unwound, and then the installation portion of the dust collecting belt 20′ supported by the plurality of first rollers 30 and the plurality of second rollers 40 passes through the belt cleaning part 60 and is wound around the second winding roller 120.
The dust collecting belt 20′ is made of a conductive flexible material. Because the material of the dust collecting belt 20′ is the same as the dust collecting belt 20 of the belt type electric dust collection device 10 according to the above-described embodiment, a detailed description thereof is omitted.
The first winding roller 110 and the second winding roller 120 are provided in the frame 15 to be rotated in both directions by the drive part 80′ and winds or unwinds the dust collecting belt 20′. The first winding roller 110 and the second winding roller 120 are disposed spaced apart by a predetermined interval at one side of the plurality of first rollers 30.
The drive part 80′ is configured to generate a driving force so that the dust collecting belt 20′ moves along the plurality of first rollers 30 and the plurality of second rollers 40 and is wound or unwound around or from the first winding roller 110 and the second winding roller 120. Therefore, the dust collecting belt 20′ is moved by the drive part 80′, and thereby wound around or unwound from the first winding roller 110 or the second winding roller 120. The drive part 80′ may be provided in the rear surface of the frame 15.
The drive part 80′ is provided to drive at least one of the plurality of first rollers 30, the first winding roller 110, and the second winding roller 120. Hereinafter, the drive part 80′ will be described in detail with reference to
Referring to
The roller gear 81 is coaxially disposed on the shaft of the at least one of the plurality of first rollers 30. In the case of this embodiment, one roller gear 81 is provided per two first rollers 30 in the plurality of first rollers 30. In other words, the roller gears 81 are provided one after every other first roller 30 in the plurality of first rollers 30. For example, in the case where twelve first rollers 30 are disposed in a line as illustrated in
The worm gear 83 is provided to engage with the plurality of roller gears 81 provided in the plurality of first rollers 30. In the case of
Both ends of the worm gear 83 are rotatably supported by bearings provided at a pair of support brackets 82 disposed on the frame 15. The worm gear 83 is disposed to be rotatable by the drive motor 85. The worm gear 83 may be directly connected to the shaft of the drive motor 85. Alternatively, a reducer may be provided between the worm gear 83 and the drive motor 85.
In the case of the embodiment as illustrated in
The first winding gear train 130 is provided to transmit the rotational force of the worm gear 83 to the first winding roller 110. The first winding gear train 130 is configured to reduce the rotational speed of the worm gear 83 and to transmit it to the first winding roller 110. When the radius of the dust collecting belt 20′ wound around the first winding roller 110 becomes larger than the radius of the first roller 30, the speed at which the first winding roller 110 winds the dust collecting belt 20′ is faster than the conveying speed at which the first rollers 30 conveys the dust collecting belt 20′, thereby increasing overall the conveying force of the dust collecting belt 20′. On the contrary, when the first winding roller 110 is released, the tension of the releasing side is weakened, which may cause a problem that the gap between the dust collecting belt 20′ and the electrode plate 50 is not maintained. Therefore, the first winding gear train 130 is provided to reduce the rotational speed of the worm gear 83 and to transmit it to the first winding roller 110.
As an example, the first winding gear train 130 may include a connection gear 131 meshing with the worm gear 83, a winding gear 133 coaxially disposed on the first winding roller 110, and an idle gear 132 disposed between the connection gear 131 and the winding gear 133. The connection gear 131 and the idle gear 132 are rotatably disposed in the frame 15.
A one-way clutch 135 may be provided between the winding gear 133 and the shaft of the first winding roller 110. The one-way clutch 135 is provided so that the first winding roller 110 rotates freely without transmitting the rotation of the winding gear 133 to the first winding roller 110 in the direction in which the first winding roller 110 winds up the dust collecting belt 20′ and the first winding roller 110 rotates integrally with the winding gear 133 by the rotation of the winding gear 133 transmitted to the first winding roller 110 in the direction in which the first winding roller 110 releases the dust collecting belt 20′. When the one-way clutch 135 is provided between the winding gear 133 and the first winding roller 110 as described above, the overall conveying speed of the dust collecting belt 20′ may be prevented from being changed by dust collecting belt 20′ being wound around the first winding roller 110.
The second winding gear train 140 is provided to transmit the rotational force of the worm gear 83 to the second winding roller 120. The second winding gear train 140 is formed to reduce the rotational speed of the worm gear 83 and to transmit it to the second winding roller 120. Because the second winding gear train 140 may be formed in the same manner as the first winding gear train 130, a detailed description thereof is omitted.
In addition, a one-way clutch 145 may be provided between the winding gear 143 of the second winding gear train 140 and the shaft of the second winding roller 120. The installation direction of the one-way clutch 145 is the same as that of the one-way clutch 135 provided between the winding gear 133 of the first winding gear train 130 and the first winding roller 110 as described above; therefore, a detailed description thereof is omitted.
In front of the first winding roller 110, that is, between the first winding roller 110 and the plurality of first rollers 30, a first regulating roller 150 may be provided to convey the dust collecting belt 20′ to the first winding roller 110 or to convey the dust collecting belt 20′ being released from the first winding roller 110 toward the plurality of first rollers 30.
The first regulating roller 150 is disposed to rotate by receiving power from the worm gear 83. Therefore, a first regulating gear 151 is coaxially disposed on the shaft of the first regulating roller 150, and the first regulating gear 151 is meshed with the worm gear 83. Accordingly, when the worm gear 83 rotates, the first regulating gear 151 is rotated, and thereby the first regulating roller 150 is rotated integrally. The first regulating roller 150 is rotatably disposed in the frame 15.
In addition, a regulating backup roller 155 may be provided to face the first regulating roller 150 and rotate by the rotation of the first regulating roller 150 at one side of the first regulating roller 150. In other words, the regulating backup roller 155 may be disposed to press the dust collecting belt 20′ against the first regulating roller 150. Thus, a large frictional force may be generated between the dust collecting belt 20′ and the first regulating roller 150.
A second regulating roller 160 may be provided to convey the dust collecting belt 20′ to the second winding roller 120 or to convey the dust collecting belt 20′ being released from the second winding roller 120 toward the belt cleaning part 60 in front of the second winding roller 120, that is, between the second winding roller 120 and the belt cleaning part 60. The dust collecting belt 20′ that has passed through the belt cleaning part 60 moves to the plurality of first rollers 30.
The second regulating roller 160 may be formed in the same manner as the first regulating roller 150. In other words, the second regulating roller 160 is disposed to rotate by receiving power from the worm gear 83. Therefore, a second regulating gear 161 is coaxially disposed on the shaft of the second regulating roller 160, and the second regulating gear 161 is meshed with the worm gear 83. Accordingly, when the worm gear 83 rotates, the second regulating gear 161 is rotated, and thereby the second regulating roller 160 is rotated integrally. The second regulating roller 160 is rotatably disposed in the frame 15.
In addition, a regulating backup roller 165 may be provided to face the second regulating roller 160 and rotate by the rotation of the second regulating roller 160 at one side of the second regulating roller 160. In other words, the regulating backup roller 165 may be disposed to press the dust collecting belt 20′ against the second regulating roller 160. Thus, a large frictional force may be generated between the dust collecting belt 20′ and the second regulating roller 160.
The drive motor 85 may use a motor capable of bidirectional rotation.
A backup roller 33 may be provided to face the first roller 30 and be rotated by the rotation of the first roller 30 at one side of the first roller 30 in which the roller gear 81 is disposed. In other words, the backup roller 33 may be provided to press the dust collecting belt 20′ against the first roller 30. Thus, a large frictional force may be generated between the dust collecting belt 20′ and the first roller 30. Therefore, when the roller gear 81 is rotated by the drive motor 85, the dust collecting belt 20′ may be moved by the first roller 30. In this case, a rubber layer may be formed on the outer circumferential surface of the backup roller 33 so as to increase the contact area with respect to the first roller 30.
In the case of the embodiment illustrated in
In the above description, the roller gears 81 are provided one for every other first rollers 30 in the plurality of first rollers 30. However, the arrangement of the roller gears 81 is not limited thereto. The number of roller gear 81 may be reduced or increased depending on the driving force of the first rollers 30 for conveying the dust collecting belt 20′.
Hereinafter, an operation of the belt type electric dust collection device 100 according to an embodiment of the disclosure will be described with reference to
A process through which the belt type electric dust collection device 100 according to an embodiment of the disclosure causes contaminants or fine materials contained in the introduced air to be attached to the dust collecting belt 20′ so as to clean the air is the same as that of the belt type electric dust collection device 10 according to the above-described embodiment; therefore, a detailed description thereof is omitted.
When the contaminants are attached to the dust collecting belt 20′, the contaminants become resistance, so the contaminant collecting performance of the dust collecting belt 20′ is reduced. Therefore, when a predetermined time elapses, the dust collecting belt 20′ is conveyed to the belt cleaning part 60 to remove the contaminants attached to the dust collecting belt 20′.
When the drive motor 85 is turned on, the pinion gear 86 provided on the shaft of the drive motor 85 rotates. When the pinion gear 86 rotates, the spur gear 84 meshed with the pinion gear 86 is rotated. Because the spur gear 84 is integrally provided coaxially with the worm gear 83, when the spur gear 84 rotates, the worm gear 83 rotates integrally.
When the worm gear 83 rotates, the plurality of roller gears 81, the first regulating gear 151, and the second regulating gear 161 engaged with the worm gear 83 are rotated in one direction. The first winding gear train 130 and the second winding gear train 140 also transmit the power of the worm gear 83 to the first winding gear 133 and the second winding gear 143, and thereby the first winding gear 133 and the second winding gear 143 are rotated in one direction.
At this time, because the dust collecting belt 20′ is wound around the first winding roller 110 to which the first winding gear 133 is coupled, the first winding gear 133 rotates in a direction to release the dust collecting belt 20′, and the second winding gear 143 rotates in a direction in which the second winding roller 120 winds up the dust collecting belt 20′. At this time, the first winding roller 110 rotates integrally with the first winding gear 133 due to the one-way clutch 135. However, the second winding roller 120 is not rotated by the second winding gear 143 due to the one-way clutch 145 even when the second winding gear 143 rotates.
When the plurality of roller gears 81 rotate, the first roller 30 coaxially disposed in each of the plurality of roller gears 81 rotates. When the plurality of first rollers 30 rotate, the dust collecting belt 20′ is moved by the frictional force between the plurality of first rollers 30 and the dust collecting belt 20′.
In addition, when the first and second regulating gears 151 and 161 rotate, the first and second regulating rollers 150 and 160 rotate integrally. When the first regulating roller 150 rotates, the dust collecting belt 20′ being released from the first winding roller 110 is moved toward the plurality of first rollers 30 by the first regulating roller 150. When the second regulating roller 160 rotates, the dust collecting belt 20′ is moved to the second winding roller 120 and wound around the second winding roller 120. At this time, because the second winding roller 120 rotates freely regardless of the rotation of the second winding gear 143, the dust collecting belt 20′ being conveyed by the second regulating roller 160 is wound around the second winding roller 120. Thus, the dust collecting belt 20′ being wound around the second winding roller 120 does not affect the conveying speed of the dust collecting belt 20′ being conveyed by the plurality of first rollers 30.
When the dust collecting belt 20′ moves to the second winding roller 120, a portion of the dust collecting belt 20′ to which contaminants are attached passes through the belt cleaning part 60. When the dust collecting belt 20′ passes through the belt cleaning part 60, the first cleaning member 61 of the belt cleaning part 60 removes the contaminants attached to one surface of the dust collecting belt 20′, and the second cleaning member 62 removes the contaminants attached to the opposite surface of the dust collecting belt 20′.
When the entire portion of the dust collecting belt 20′ wound around the first winding roller 110 is released and the dust collecting belt 20′ is wound around the second winding roller 120, the entire portion of the dust collecting belt 20′ to which the contaminants are attached passes through the belt cleaning part 60, and thereby the contaminants attached to both surfaces of the dust collecting belt 20′ are removed. Therefore, the dust collecting belt 20′ may restore the original dust collecting performance.
The belt type electric dust collection devices 10 and 100 according to an embodiment of the disclosure having the structure as described above may automatically remove the contaminants attached to the dust collecting belt 20 and 20′. Therefore, the belt type electric dust collection device 10 and 100 may maintain the air cleaning capability almost permanently even if the user does not periodically clean the electric dust collection devices 10 and 100.
In
Referring to the line {circle around (1)} in
The belt type electric dust collection device 10 and 100 according to an embodiment of the disclosure as described above may be provided in an air conditioner.
Referring to
An air treatment part 210 configured to suck indoor air and heat or cool the indoor air is provided above the belt type electric dust collection device 10.
Therefore, while the indoor air introduced through the inlet 201 passes through the charging part 3 and the belt type electric dust collection device 10 according to an embodiment of the disclosure, contaminants are removed.
Air from which the contaminants are removed is heated or cooled while passing through the air treatment part 210.
The clean air processed by the air treatment part 210 is discharged back into the indoor through an outlet 203.
Because the belt type electric dust collection device 10 according to an embodiment of the disclosure as described above may automatically remove the contaminants attached to the dust collecting belt 20, there is no need to disassemble the ceiling type air conditioner 200 for cleaning. Therefore, the ceiling type air conditioner 200 using the belt type electric dust collection device 10 according to an embodiment of the disclosure has an advantage of easy maintenance.
In the above description, the belt type electric dust collection device 10 according to an embodiment of the disclosure is applied to the ceiling type air conditioner 200. However, the field of application of the belt type electric dust collection device according to the disclosure is not limited thereto.
The belt type electric dust collection device 10 according to an embodiment of the disclosure may be applied to a variety of air conditioners, for example, a stand type air conditioner, a window type air conditioner, a system air conditioner, a dehumidifier, a humidifier, an air purifier, etc.
In the above description, the disclosure has been described by way of example. The terminology used herein is for the purpose of description and should not be regarded as limiting. Many modifications and variations of the disclosure are possible in light of the above teachings. Accordingly, unless otherwise stated, the disclosure may be practiced freely within the scope of the claims.
Number | Date | Country | Kind |
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10-2017-0168291 | Dec 2017 | KR | national |
Filing Document | Filing Date | Country | Kind |
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PCT/KR2018/015404 | 12/6/2018 | WO |
Publishing Document | Publishing Date | Country | Kind |
---|---|---|---|
WO2019/112333 | 6/13/2019 | WO | A |
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Entry |
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Korean Office Action dated Jan. 14, 2022 from Korean Application No. 10-2017-0168291. |
International Search Report dated Mar. 14, 2019, in corresponding International Patent Application No. PCT/KR2018/015404. |
Written Opinion of the International Searching Authority dated Mar. 14, 2019 , in corresponding International Patent Application No. PCT/KR2018/015404. |
Number | Date | Country | |
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20220032317 A1 | Feb 2022 | US |