This application claims the benefit of Korean Patent Application No. 111905/2006 filed in Korea on Nov. 13, 2006, the entirety of which is incorporated herein by reference.
1. Field
This relates to a dispenser for a refrigerating system, and more particularly to a dispenser that dispenses contents such as, for example, ice and/or water from a refrigerator.
2. Background
Dispensers are typically provided in a freezing chamber door of a refrigerator to allow contents such as, for example, ice and/or water to be easily dispensed without opening the door. However, the structure that operates the dispenser can be complicated and generate noise, thus adding to manufacturing cost and complexity and detracting from customer satisfaction.
The embodiments will be described in detail with reference to the following drawings in which like reference numerals refer to like elements wherein:
A structure of an exemplary refrigerator including a dispenser as embodied and broadly described herein will be described with reference to
The refrigerator may include a main body 9 including a freezing chamber 7a and a cooling chamber 8a each closed by a respective door 7 and 8. A dispenser 100 in communication with an ice maker 5 may be provided on one of the doors 7 and 8 to discharge contents from the refrigerator without opening the doors 7 and 8.
Simply for each of discussion, hereinafter a refrigerator 9 having the freezing chamber 7a and the cooling chamber 8a arranged side by side at left and right compartments of the main body 9, respectively, separated by a partition 6 will be referred to. However, it is well understood that a dispenser as embodied and broadly described herein may also be applied to differently configured refrigeration systems, as shown, for example, in
As shown in
An ice discharging duct 10 may connect the ice maker 5 with the dispenser 100. A water storage chamber 3 may be installed in the cooling chamber 8a to store water to be supplied to the dispenser 100 and the ice maker 5. Valves 4b and 4c may control the amount of water supplied to the dispenser 100 and the ice maker 5.
Water stored in the water storage chamber 3 may pass through a lower portion of the refrigerator 9 along a first water supply pipe 2b to be supplied to the dispenser 100. Water may also supplied along a second water supply pipe 2c to the ice maker 5. The water storage chamber 3 may be supplied with water through a water supply pipe 2a from a water connecting pipe 1.
A structure of the dispenser 100 in accordance with an embodiment as broadly described herein will now be described in detail with reference to
The dispenser 100 may include a cover 120 which selectively opens and shuts an opening formed at an end portion of the discharging duct 10, an actuator which transmits force to drive the cover 120, and a regulator which controls the action of the actuator. The actuator may include a lever 110 and a transmitter. More specifically, as force is applied to the lever 110, the transmitter transmits the force applied to the lever 110 to the cover 120 to open the cover 120 and allow contents to be dispensed through the duct 10.
As shown in
The lever 110 may include a main lever 111 that contacts a container for receiving contents discharged from the dispenser 100, a first split lever 112 that extends on the left side of the main lever 111 in
The cover 120 may include a door plate 123 corresponding to the ice discharging duct 10 shown in
The transmitter may include a shaft 157 coupled to the cover 120, linking members 153a, 153b and 153c that move in response to a rotation of the lever 110, and a converter 155 that converts movement of the linking members 153a, 153b and 153c to a corresponding rotation of the shaft 157. The shaft 157 may be coupled to the door rotating rod 121 to rotate the cover 120 to selectively open and shut the ice discharging duct 10. That is, the shaft 157 may be rotated by the linking members 153a, 153b and 153c and the converter 155. The elastic member 130 may apply an elastic restoration force to the shaft 157 that causes the shaft 157 to return to an original position.
In certain embodiments, linking members 153a, 153b and 153c include a lever link 153a connected to the lever 110, a first link 153b connected to the damping member 140, and a second link 153c connected to the converter 155. The lever link 153a, the first link 153b and the second link 153c may be formed as a single body. An external force applied to the lever 110 causes the linking members 153a, 153b and 153c to also move relative to the lever 110. The lever link 153a may be connected to the lever 110, i.e., the first split lever 112 and the second split lever 113, by a first connector 171 (see
In certain embodiments, converter 155 may be an actuating member 155a as shown in
As shown in
In the embodiment shown in
In the embodiment shown in
A dispenser in accordance with another embodiment as broadly described herein is shown in
As shown in
The elastic member 130 may be connected to the shaft 157 to apply an elastic restoration force to the shaft 157 that has been rotated away from its at rest position due to the externally applied force. The opposite ends of the elastic member 130 may be fixed to an inner surface of a dispensing case 161. The elastic member 130 may support the shaft 157 while also supplying restoration force to the shaft 157. Although the elastic member 130 shown in
The damping member 140 may be connected to the linking member, i.e., the first link 153b to apply tensile force and compressive force to the movement of the first link 153b. Specifically, one side of the damping member 140 may be connected to the first link 153b via a second connector 173. The other side of the damping member 140 may be connected to a bracket 163 provided with the dispensing case 161 via a third connector 175.
The structure of the damping member 140 and a process of opening the cover 120 of the dispenser 100 will be described with reference to FIGS. 4 and 8-10.
The damping member 140 may include a first damping part 141 connected to the first link 153b so as to move in response to rotation of the lever 110, a second damping part 145 connected to the bracket 163 so as to move relative to the first damping part 141, and a third damping part 143 installed between the first damping part 141 and the second damping part 145. A portion of the first damping part 141 may be inserted into the second damping part 145 and move within the second damping part 145. The third damping part 143 may be installed between one end of the first damping part 141 and an inner end portion of the second damping part 145 to supply force corresponding to the movement of the first damping part 141.
The damping member 140 not only has elastic restoration force, but may also decrease the effect of an external impact. In certain embodiments, the third damping part 143 may be a spring. A fluid may be filled in a space between the first damping part 141 and the second damping part 145. That is, fluid may be filled in an inner space of the second damping part 145 and the third damping part 143 may also be installed in the second damping part 145.
When an external force is applied to the lever 110, the main lever 111 moves toward the left, as indicated by an arrow in
The rotation of the second split lever 113 causes all of the linking members 153a, 153b, 153c to rotate. A clockwise moment M1 is applied to the first link 153b by the second split lever 113. The first damping part 141 is pushed by a first compressive force F1 due to the rotation of the first link 153b. Then, the third damping part 143 is compressed by the first damping part 141, while also storing a first elastic restoration force F2 in the opposite direction to the first compressive force F1.
Thereafter, as the first link 153b continues to push the first damping part 141, elastic restoration force due to the third damping part 143 gradually increases. The third damping part 143 has a maximum elastic restoration force F3 when the first link 153b and the damping member 140 are arranged in a straight line, as shown in
The second link 153c rotates to actuate the converter 155, and the converter 155 rotates the shaft 157. Then, the shaft 157 rotates the cover 120 to open the ice discharging duct 10. As the first link 153b continues to rotate, the first link 153b has a first tensile force F4 that draws the first damping part 141 to a certain extent. The third damping part 143 has a second elastic restoration force F5 in the same direction as a moving direction of the first damping part 141.
The ice discharging duct 10 may be connected to an ice bank (not shown). The ice bank may include a motor that may be actuated by a movement of the lever 110 to discharge ice. More specifically, rotation of the lever 110 may actuate a micro switch (not shown) provided in the dispenser 100 to drive the motor to transmit ice from the ice bank to the ice discharging duct 10. When the externally applied force is removed, the micro switch is turned off and the operation of the motor is stopped.
A process of closing the cover 120 of the dispenser 10 will be described with reference to FIGS. 3 and 11-13.
When the cover 120 is moved so as to shut the ice discharging duct 10, a shutting velocity of the cover 120 has a first velocity period and a second velocity period defined by interaction between the elastic member 130 and the damping member 140. A process of determining a shutting velocity of the cover 120 in the first velocity period will first be described.
When external force is removed from the lever 110, the lever 110 moves back to its original position. As the lever 110 moves back to its original position, the lever 110 receives force from the elastic member 130 and force from the damping member 140 at the same time. Specifically, when the external force is removed, the elastic member 130, which has a stored restoration force due to the rotation of the shaft 157 when the cover 120 is opened, exerts the restoration force on the shaft 157, and the shaft 157 rotates clockwise to close the cover 120.
When the shaft 157 rotates in the cover-closing direction (clockwise), the rotation of the shaft 157 causes the converter 155 to rotate. The converter 155 rotates the second link 153c counterclockwise. When the second link 153c rotates, the first link 153b together with the second link 158c rotates counterclockwise. That is, the first link 153b receives a counterclockwise moment M2. When the first link 153b rotates counterclockwise, the first link 153b pushes the damping member 140 toward the right as shown in
That is, the damping member 140 receives a second compressive force F6 in response to the movement of the first link 153b. The first damping part 141 pushes the third damping part 143 due to the second compressive force F6. Then, the third damping part 143 generates a third elastic restoration force F7 in the direction opposite to the moving direction of the first damping part 141. Since the third damping part 143 has already been compressed while the cover 120 is closed, the third damping part 143 has a stored elastic restoration force in the direction opposite to the direction of the second compressive force F6.
The rotation of the first link 153b is limited by the third elastic restoration force F7 of the third damping part 143. The limitation in movement of the first link 153b influences the rotation of the second link 153c. Further, the influence on the rotation of the second link 153c affects the shaft 157. As a result, a rotational velocity, i.e., a shutting velocity of the cover 120 is influenced.
Since the elastic restoration force stored by the shaft 157 may be relatively large, the door 120 continuously rotates toward the open position. When the shaft 157 is continuously rotated by the elastic member 130, as shown in
As the elastic member 130 continues to rotate to close the cover 120, the cover 120 enters a second velocity period. Specifically, when the shaft 157 continuously rotates clockwise due to the restoration force of the elastic member 130, the second link 153c rotates counterclockwise and the first link 153b rotates counterclockwise together with the second link 153c. Then, the first link 153b draws the first damping part 141 by a second tensile force F9. The first damping part 141 moves toward the left as shown in
That is, the second tensile force F9 and the fourth elastic restoration force F10 which are applied to the first damping part 141 by the elastic member 130 and the third damping part 143, respectively, are exerted in the same direction, i.e., toward the left in FIG. 13. Thus, since the second tensile force F9 and the fourth elastic restoration force F10 are exerted in the same direction, the rotational velocity of the first link 153b increases, thereby increasing the shutting velocity of the cover 120 in the second velocity period.
As a result, when the cover 120 is closed, the shutting velocity of the cover 120 has a first velocity period and a second velocity period due to the interaction of forces generated by the elastic member 130 and the damping member 140. In the first velocity period, the cover 120 moves slowly because forces caused by the elastic member 130 and the damping member 140 are exerted in the opposite directions. In the second velocity period, the cover 120 moves more quickly because forces generated by the elastic member 130 and the damping member 140 are exerted in the same direction.
As described above, while the cover 120 is closed, the cover 120 moves slowly at first and, after a predetermined time period, the cover 120 moves more quickly. Accordingly, only ice that is being discharged through the ice discharging duct 10 is discharged from the dispenser 100. The cover 120 is closed before any additional ice can be discharged.
The exemplary dispenser presented herein may be easily applied to a variety of different types of refrigerating systems in which this type of dispensing of contents such as, for example, fluids and/or ice, is required and/or advantageous.
More specifically, the various embodiments of an opening/closing structure for a dispenser as embodied and broadly described herein have numerous applications in different types of refrigerating systems.
In a dispenser and a refrigerator including a dispenser as embodied and broadly described herein the cover may be opened or closed through mechanical connection without using a solenoid, thereby reducing the manufacturing cost of the dispenser and the refrigerator including the dispenser.
Further, since the cover may be opened or closed without using a solenoid, noise generated during opening and closing can be decreased.
Additionally, since the shutting velocity of the cover is controlled by interaction between the elastic member and the damping member, contents such as ice can be easily dispensed.
A dispenser as embodied and broadly described herein is capable of opening or closing a cover through mechanical connection, curtailing the manufacturing cost and reducing noises and vibration and a refrigerator including the same.
A dispenser as embodied and broadly described includes a cover which opens or shuts an opening of a duct which guides discharged contents, an actuator which transmits force applied by a user to the cover to open or shut the opening, and a regulator which controls action of the actuator to adjust movement of the cover.
The actuator may include a lever to which the user applies force, and a transmitting unit which transmits the force applied to the lever to the cover.
The transmitting unit may include a shaft provided on a side of the cover, a linking member which moves by the force applied to the lever, and a converter which converts movement of the linking member to rotation of the shaft.
The linking member may include a lever link connected to the lever to rotate by the lever, a first link connected to the lever link to go around in a circle on basis of the lever link, and a second link connected to the first link and the converter to transmit rotating force delivered to the first link by the lever to the converter.
The second link may have bending portions to transmit force to the converter easily and to buffer a load of transmitting force.
The converter may include an actuating member provided on the shaft and actuated by the second link so as to rotate the shaft.
The second link may have an end portion rotatably connected to the actuating member.
The second link may have an end portion in contact with the actuating member such that the end portion of the second link pushes the actuating member.
The dispenser may also include a roller installed on the end portion of the second link.
The converter may include an actuating gear unit including a pinion gear part provided on a portion of the shaft, and a rack gear part provided on a portion of the second link, wherein the pinion gear part engages with the rack gear part which drives the pinion gear part to rotate to actuate the cover.
The regulator may include an elastic member which supplies elastic force to the cover, and a damping member which controls an opening or shutting velocity of the cover by damping force transmitted from the actuator.
The cover may shut the opening in the shutting velocity which has a first velocity period in which the cover moves slowly and a second velocity period in which the cover moves quickly by interaction of the elastic member and the damping member.
A direction of force transferred by the elastic member and a direction of force applied by the damping member may be substantially opposite to each other in the first velocity period.
A direction of force transferred by the elastic member and a direction of force applied by the damping member may be substantially same as each other in the second velocity period.
The cover may be opened while force transferred by the elastic member and force applied by the damping member are exerted in opposite directions and then exerted in the same direction, and the cover may be closed while force transferred by the elastic member and force applied by the damping member are exerted in the same direction and then exerted in opposite directions.
In another embodiment as broadly described herein, a refrigerator may include a case which has at least one cooling room, a door which opens or closes the cooling room, and a dispenser installed in one of the cooling room and the door, wherein the dispenser includes a cover which opens or shuts an opening of a duct which guides discharged contents, an actuator which transmits force applied by a user to the cover to open or shut the opening, and a regulator which controls action of the actuator to adjust movement of the cover.
Any reference in this specification to “one embodiment,” “an embodiment,” “example embodiment,” “certain embodiment,” “alternative embodiment,” etc., means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment as broadly described herein. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with any embodiment, it is submitted that it is within the purview of one skilled in the art to effect such feature, structure, or characteristic in connection with other ones of the embodiments.
Although embodiments have been described with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this disclosure. More particularly, various variations and modifications are possible in the component parts and/or arrangements of the subject combination arrangement within the scope of the disclosure, the drawings and the appended claims. In addition to variations and modifications in the component parts and/or arrangements, alternative uses will also be apparent to those skilled in the art.
Number | Date | Country | Kind |
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10-2006-0111905 | Nov 2006 | KR | national |