KR20070111856A - Door opening device and refrigerator having the same - Google Patents

Door opening device and refrigerator having the same Download PDF

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Publication number
KR20070111856A
KR20070111856A KR1020060045216A KR20060045216A KR20070111856A KR 20070111856 A KR20070111856 A KR 20070111856A KR 1020060045216 A KR1020060045216 A KR 1020060045216A KR 20060045216 A KR20060045216 A KR 20060045216A KR 20070111856 A KR20070111856 A KR 20070111856A
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KR
South Korea
Prior art keywords
door
door opening
opening device
rotation
gear portion
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KR1020060045216A
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Korean (ko)
Inventor
안재국
김중래
김종엽
Original Assignee
삼성전자주식회사
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Priority to KR1020060045216A priority Critical patent/KR20070111856A/en
Publication of KR20070111856A publication Critical patent/KR20070111856A/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • F25D23/02—Doors; Covers
    • F25D23/028—Details
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00—Power-operated mechanisms for wings
    • E05F15/60—Power-operated mechanisms for wings using electrical actuators
    • E05F15/603—Power-operated mechanisms for wings using electrical actuators using rotary electromotors
    • E05F15/611—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings
    • E05F15/616—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings operated by push-pull mechanisms
    • E05F15/619—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings operated by push-pull mechanisms using flexible or rigid rack-and-pinion arrangements
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00—Power-operated mechanisms for wings
    • E05F15/60—Power-operated mechanisms for wings using electrical actuators
    • E05F15/603—Power-operated mechanisms for wings using electrical actuators using rotary electromotors
    • E05F15/611—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings
    • E05F15/616—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings operated by push-pull mechanisms
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/40—Motors; Magnets; Springs; Weights; Accessories therefor
    • E05Y2201/404—Function thereof
    • E05Y2201/422—Function thereof for opening
    • E05Y2201/426—Function thereof for opening for the initial opening movement
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/60—Suspension or transmission members; Accessories therefor
    • E05Y2201/622—Suspension or transmission members elements
    • E05Y2201/686—Rods, links
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/60—Suspension or transmission members; Accessories therefor
    • E05Y2201/622—Suspension or transmission members elements
    • E05Y2201/71—Toothed gearing
    • E05Y2201/722—Racks
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/30—Application of doors, windows, wings or fittings thereof for domestic appliances
    • E05Y2900/31—Application of doors, windows, wings or fittings thereof for domestic appliances for refrigerators

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Refrigerator Housings (AREA)

Abstract

A door opening device and a refrigerator having the same are provided to connect an input element and an output element to a rotation element at positions having different rotation radii for driving the input element, the rotation element, and the output element in sequence by straight motion of a solenoid driving element, thereby simplifying a door opening structure in a small size to open a door by an increased force. A door opening device includes a solenoid driving element(23) for generating straight motion, and an input element(24) moving back and forth by the solenoid driving element. A rotation element(25) has the center of rotation, which is apart from a first gear unit(31) mounted at a first position connected to the input element, so that the rotation element rotates in response to the motion of the input element. An output element(26) has a side connected to a second gear unit(32) mounted at a second position of the rotation element, so that thee output element carries out straight motion in response to the rotation of the rotation element to press the door. The second gear at the second position has a rotation radius smaller than the first gear at the first position of the rotation element.

Description

도어개방장치 및 이를 갖춘 냉장고{DOOR OPENING DEVICE AND REFRIGERATOR HAVING THE SAME}DOOR OPENING DEVICE AND REFRIGERATOR HAVING THE SAME}

도 1은 본 발명에 따른 도어개방장치가 적용된 냉장고를 나타낸 사시도이다.1 is a perspective view showing a refrigerator to which a door opening device according to the present invention is applied.

도 2는 본 발명에 따른 도어개방장치의 분해사시도이다.2 is an exploded perspective view of the door opening apparatus according to the present invention.

도 3은 본 발명에 따른 도어개방장치가 적용된 냉장고의 평면도로, 도어가 닫힌 상태를 도시한 것이다.3 is a plan view of the refrigerator to which the door opening device according to the present invention is applied and shows a state in which the door is closed.

도 4는 본 발명에 따른 도어개방장치가 적용된 냉장고의 평면도로, 도어개방장치에 의해 도어가 열린 상태를 도시한 것이다.4 is a plan view of the refrigerator to which the door opening device according to the present invention is applied and shows a state in which the door is opened by the door opening device.

도 5는 본 발명에 따른 도어개방장치의 다른 실시 예를 나타낸 것이다.Figure 5 shows another embodiment of the door opening apparatus according to the present invention.

* 도면의 주요 부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings

20: 도어개방장치, 23: 솔레노이드구동장치,20: door opening device, 23: solenoid drive device,

24: 입력부재, 25: 회전부재,24: input member, 25: rotating member,

26: 출력부재, 27: 제1랙기어부,26: output member, 27: first rack gear portion,

31: 제1기어부, 32: 제2기어부,31: first gear part, 32: second gear part,

33: 제2랙기어부.33: second rack gear unit.

본 발명은 도어개방장치 및 이를 갖춘 냉장고에 관한 것으로, 특히 도어의 개방을 손쉽게 할 수 있도록 하는 도어개방장치 및 이를 갖춘 냉장고에 관한 것이다.The present invention relates to a door opening device and a refrigerator having the same, and more particularly to a door opening device and a refrigerator having the same to facilitate the opening of the door.

일반적으로 대형 냉장고는 저장실을 개폐하는 도어가 크기 때문에 도어의 개방할 때 큰 힘이 필요하다. 도어의 무게가 무거울 뿐 아니라 냉장고가 가동될 때 저장실의 온도가 하강하게 되면서 저장실 내부와 외부의 압력차가 생기기 때문이다. 따라서 최근 이러한 냉장고에는 사용자가 도어를 열고자 할 때 도어를 개방하는 방향으로 밀어 주어 도어가 쉽게 열리도록 하는 도어개방장치가 설치되고 있다.In general, a large refrigerator requires a large force when opening the door because the door to open and close the storage compartment is large. This is because the weight of the door is heavy and the pressure in the storage compartment decreases as the temperature of the storage compartment decreases when the refrigerator is operated. Therefore, in recent years, such a refrigerator has been provided with a door opening device for pushing the door in the direction of opening the door to open the door easily when the user wants to open the door.

대한민국 등록특허공보 10-540088호에는 이러한 도어개방장치를 갖춘 냉장고의 예가 개시되어 있다. 이 냉장고의 도어개방장치는 도어의 내면을 가압할 수 있도록 진퇴 가능하게 설치된 노크 핀과, 이 노크 핀을 가압하는 전자솔레노이드를 갖추고 있다. 이는 전자솔레노이드의 동작에 의해 노크 핀이 도어를 개방방향으로 밀어줌으로써 도어를 손쉽게 개방할 수 있도록 한다.Korean Patent Publication No. 10-540088 discloses an example of a refrigerator having such a door opening device. The door opening device of this refrigerator is provided with a knock pin which is installed so as to pressurize the inner surface of the door, and an electronic solenoid for pressing the knock pin. This allows the knock pin to easily open the door by pushing the door in the opening direction by the operation of the solenoid.

그러나 이 도어개방장치는 전자솔레노이드의 플런저와 노크 핀이 동축적으로 설치되어 전자솔레노이드의 힘이 노크 핀에 직접 전달되는 형태이기 때문에 도어를 개방할 수 있는 정도의 힘을 발휘하기 위해서는 출력이 큰 전자솔레노이드를 채용해야 하는 결점이 있었다. 통상적으로 큰 출력을 발휘하는 전자솔레노이드는 가격이 비쌀 뿐 아니라 부피가 커서 냉장고의 외관을 해치기 때문에 냉장고에 적용하기 곤란한 문제가 있었다. However, this door opening device has a large output power to exert a force enough to open the door because the solenoid plunger and the knock pin are coaxially installed so that the force of the solenoid is directly transmitted to the knock pin. There was a drawback to employing solenoids. In general, an electronic solenoid exhibiting a large output has a problem that it is difficult to apply to a refrigerator because it is expensive and bulky, which damages the appearance of the refrigerator.

다른 예로 일본 공개특허공보 2000-324867호에는 작은 모터를 채용하면서도 큰 힘으로 도어를 개방할 수 있도록 한 도어개방장치가 개시되어 있다. 이 도어개방장치는 회전력을 발생시키는 모터와, 모터의 회전력을 감속하여 전달하는 다수의 기어들과, 다수의 기어들을 통하여 전달된 회전력에 의해 진퇴하는 출력부재를 갖추고 있다. As another example, Japanese Laid-Open Patent Publication No. 2000-324867 discloses a door opening device that allows a door to be opened with a large force while employing a small motor. The door opening device includes a motor that generates rotational force, a plurality of gears that decelerate and transmit the rotational force of the motor, and an output member that retreats by the rotational force transmitted through the plurality of gears.

그러나 이 도어개방장치는 모터의 회전력이 워엄과 워엄휠을 포함하는 다수의 기어들을 통하여 출력부재로 감속하여 전달되는 구성이기 때문에 기어들의 구성이 너무 복잡한 문제가 있었다.However, this door opening device has a problem that the configuration of the gears is too complicated because the rotational force of the motor is configured to be transmitted to the output member through a plurality of gears including the worm and the worm wheel.

본 발명은 이러한 문제점들을 해결하기 위한 것으로, 본 발명의 목적은 구성을 단순화하고 부피를 소형화할 수 있으면서도 큰 힘으로 도어를 개방할 수 있도록 하는 도어개방장치 및 이를 갖춘 냉장고를 제공하는 것이다.The present invention has been made to solve these problems, and an object of the present invention is to provide a door opening device and a refrigerator having the same, which can open the door with a large force while simplifying the configuration and miniaturizing the volume.

이러한 목적을 달성하기 위한 본 발명에 따른 도어개방장치는 직선운동을 유발하는 솔레노이드구동장치와, 상기 솔레노이드구동장치에 의해 진퇴하는 입력부재와, 상기 입력부재의 동작에 의해 회전하도록 그 회전중심과 이격된 제1위치가 상기 입력부재와 연결된 회전부재와, 상기 회전부재의 회전에 의해 직선운동을 하면서 도어를 가압하도록 일측이 상기 회전부재의 제1위치보다 회전반경이 작은 제2위치에 연결된 출력부재를 포함하는 것을 특징으로 한다.The door opening device according to the present invention for achieving the above object is a solenoid drive device for inducing a linear motion, the input member to advance and retreat by the solenoid drive device, the rotation center and spaced apart so as to rotate by the operation of the input member A first position of the rotating member connected to the input member and an output member connected to a second position of which one side has a smaller rotation radius than the first position of the rotating member so as to press the door while linearly moving by the rotation of the rotating member. Characterized in that it comprises a.

또한 본 발명의 도어개방장치는 상기 솔레노이드구동장치, 상기 입력부재, 상기 회전부재, 상기 출력부재를 수용하는 하우징을 더 포함하고, 상기 하우징은 상기 입력부재의 직선운동을 안내하는 제1안내부와, 상기 출력부재의 직선운동을 안내하는 제2안내부를 포함하는 것을 특징으로 한다.In addition, the door opening device of the present invention further comprises a housing for receiving the solenoid drive device, the input member, the rotating member, the output member, the housing and the first guide portion for guiding the linear movement of the input member; And, characterized in that it comprises a second guide for guiding the linear motion of the output member.

또한 상기 회전부재는 상기 제1위치에 마련된 제1기어부와 상기 제2위치에 마련된 제2기어부를 포함하고, 상기 입력부재는 상기 제1기어부와 연결된 제1랙기어부를 포함하고, 상기 출력부재는 상기 제2기어부와 연결된 제2랙기어부를 포함하는 것을 특징으로 한다.The rotating member may include a first gear part provided at the first position and a second gear part provided at the second position, and the input member may include a first rack gear part connected to the first gear part. The member may include a second rack gear part connected to the second gear part.

또한 상기 회전부재는 상기 제1위치에 마련된 제1연결핀과 상기 제2위치에 마련된 제2연결핀을 포함하고, 상기 입력부재는 상기 제1연결핀과 결합되는 제1연결공을 포함하고, 상기 출력부재는 상기 제2연결핀과 결합되는 제2연결공을 포함하는 것을 특징으로 한다.The rotating member may include a first connecting pin provided at the first position and a second connecting pin provided at the second position, and the input member may include a first connecting hole coupled to the first connecting pin. The output member may include a second connection hole coupled with the second connection pin.

또한 상기 도어는 손잡이를 포함하고, 상기 도어개방장치는 상기 솔레노이드구동장치의 동작제어를 위해 상기 손잡이에 마련된 조작부를 포함하는 것을 특징으로 한다.In addition, the door comprises a handle, the door opening device is characterized in that it comprises an operation unit provided on the handle for controlling the operation of the solenoid drive device.

또한 본 발명에 따른 냉장고는 저장실을 갖춘 본체와, 상기 저장실을 개폐하도록 상기 본체에 설치된 도어와, 상기 도어를 개방시키는 도어개방장치를 포함하고, 상기 도어개방장치는 직선운동을 유발하는 솔레노이드구동장치와, 상기 솔레노이드구동장치에 의해 진퇴하는 입력부재와, 상기 입력부재의 동작에 의해 회전하도록 그 회전중심과 이격된 제1위치가 상기 입력부재와 연결된 회전부재와, 상기 회전부재의 회전에 의해 직선운동을 하면서 상기 도어를 가압하도록 일측이 상기 회 전부재의 제1위치보다 회전반경이 작은 제2위치에 연결된 출력부재를 포함하는 것을 특징으로 한다.In addition, the refrigerator according to the present invention includes a main body having a storage compartment, a door installed in the main body to open and close the storage compartment, and a door opening device for opening the door, wherein the door opening device is a solenoid driving device that causes linear motion. And an input member advancing and retracted by the solenoid driving device, a rotary member connected to the input member at a first position spaced apart from the center of rotation so as to rotate by the operation of the input member, and a straight line by rotation of the rotary member. One side is characterized in that it comprises an output member connected to a second position of the rotation radius is smaller than the first position of the rotating member to press the door while exercising.

이하에서는 본 발명에 따른 바람직한 실시 예를 첨부 도면을 참조하여 상세히 설명한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 1은 본 발명에 따른 도어개방장치가 적용된 냉장고를 나타낸 것이다. 이 냉장고는 내부에 냉동실과 냉장실이 형성된 본체(10)를 구비하고, 냉동실과 냉장실의 개폐를 위해 본체(10)의 전면 양측에 각각 설치된 냉동실도어(11)와 냉장실도어(12)를 구비한다. 냉동실도어(11)와 냉장실도어(12)는 상부와 하부가 힌지장치(13)에 의하여 본체(10)에 회전 가능하게 결합된다. 또 각 도어(11,12)의 전면에는 손잡이(14,15)가 마련된다.1 illustrates a refrigerator to which a door opening device according to the present invention is applied. The refrigerator includes a main body 10 having a freezing compartment and a refrigerating compartment therein, and a freezing compartment door 11 and a refrigerating compartment door 12 respectively installed on both front sides of the main body 10 for opening and closing of the freezing compartment and the refrigerating compartment. The freezing chamber door 11 and the refrigerating chamber door 12 are rotatably coupled to the main body 10 by the upper and lower hinge devices 13. In addition, handles 14 and 15 are provided on the front surfaces of the doors 11 and 12.

도어개방장치(20)는 본체(10)의 상부에 설치된다. 이 도어개방장치(20)는 냉동실도어(11)와 냉장실도어(12)의 상부를 전방으로 밀어서 각 도어(11,12)를 개방시킴으로써 사용자가 도어를 손쉽게 열 수 있도록 한다. The door opening device 20 is installed above the main body 10. The door opening device 20 opens the doors 11 and 12 by pushing the upper part of the freezing chamber door 11 and the refrigerating chamber door 12 to the front so that the user can easily open the door.

도어개방장치(20)는 도 2와 도 3에 도시한 바와 같이, 냉동실도어(11)의 개방을 위한 제1도어개방장치(20A)와, 냉장실도어(12)의 개방을 위한 제2도어개방장치(20B)를 포함한다. 그리고 제1 및 제2도어개방장치(20A,20B)는 하부케이스(21)와 상부케이스(22)가 결합되어 구성되는 하우징 내에 수용된다. As shown in FIGS. 2 and 3, the door opening device 20 includes a first door opening device 20A for opening the freezing chamber door 11 and a second door opening for opening the refrigerating chamber door 12. Device 20B. The first and second door opening devices 20A and 20B are accommodated in a housing formed by combining the lower case 21 and the upper case 22.

여기서 본 실시 예는 냉동실도어(11)와 냉장실도어(12)를 각각 개방할 수 있도록 하우징 내부의 한쪽에 제1도어개방장치(20A)가 설치되고 다른 쪽에 제2도어개방장치(20B)가 설치된 경우를 나타낸 것이나, 제1 및 제2도어개방장치(20A,20B)는 각각 별도의 하우징 내에 수용되는 형태로 마련될 수 있다. 또 냉장고의 도어가 하나인 경우에는 하우징 내에 하나의 도어개방장치만 설치될 수도 있다. In this embodiment, the first door opening device 20A is installed at one side inside the housing and the second door opening device 20B is installed at the other side so as to open the freezing chamber door 11 and the refrigerating chamber door 12, respectively. Although the case is shown, the first and second door opening devices 20A and 20B may be provided to be accommodated in separate housings, respectively. In addition, when there is only one door of the refrigerator, only one door opening device may be installed in the housing.

하우징 내에 설치되는 제1도어개방장치(20A)와 제2도어개방장치(20B)는 구성 및 작동원리가 동일하다. 따라서 이하의 설명에서는 한쪽의 제1도어개방장치(20A)에 대해서만 설명하기로 한다.The first door opening device 20A and the second door opening device 20B installed in the housing have the same configuration and operation principle. Therefore, in the following description, only one first door opening device 20A will be described.

제1도어개방장치(20A)는 직선운동을 유발하는 솔레노이드구동장치(23), 솔레노이드구동장치(23)의 동작에 의해 진퇴하는 입력부재(24), 입력부재(24)의 동작에 의해 회전하는 회전부재(25), 회전부재(25)의 동작에 의하여 직선운동을 하면서 도어(11)의 내면을 가압하는 출력부재(26)를 포함한다.The first door opening device 20A is rotated by the operation of the input member 24 and the input member 24, which are advanced and retracted by the operation of the solenoid driving device 23 and the solenoid driving device 23 which cause a linear motion. The rotary member 25 and the output member 26 for pressing the inner surface of the door 11 while performing a linear motion by the operation of the rotary member 25.

솔레노이드구동장치(23)는 도면에 상세히 도시하지는 않았지만, 원통형으로 감은 전기코일, 전기코일의 내부를 진퇴하는 플런저(23a), 플런저(23a)의 복원동작을 위한 복원스프링, 그리고 외면을 덮는 케이스를 포함한다. 이러한 솔레노이드구동장치(23)는 전기코일에 전원이 인가될 때 생기는 자기장에 의하여 플런저(23a)가 전진하면서 입력부재(24)를 가압할 수 있다. 그리고 전원이 인가되지 않을 때는 복원스프링의 탄성에 의하여 플런저(23a)가 초기위치로 복원될 수 있다.Although not shown in detail in the drawings, the solenoid drive device 23 includes a cylindrically wound electric coil, a plunger 23a for retreating the inside of the electric coil, a restoring spring for restoring operation of the plunger 23a, and a case covering the outer surface. Include. The solenoid driving device 23 may press the input member 24 while the plunger 23a is advanced by a magnetic field generated when power is applied to the electric coil. When the power is not applied, the plunger 23a may be restored to the initial position by the elasticity of the restoring spring.

입력부재(24)는 전후방향으로 긴 길이를 구비하고, 후단이 솔레노이드구동장치(23)의 플런저(23a) 선단에 결합된다. 또 입력부재(24)는 제1랙기어부(27)를 구비하고, 길이방향의 진퇴를 안내하는 제1진퇴안내홈(28)을 구비한다. 제1진퇴안내홈(28)은 하우징의 하부케이스(21) 바닥에 형성된 제1안내레일(29)과 결합된다.The input member 24 has a long length in the front-rear direction, and the rear end is coupled to the tip of the plunger 23a of the solenoid drive device 23. In addition, the input member 24 includes a first rack gear portion 27 and a first retreat guide groove 28 for guiding the longitudinal retreat. The first retreat guide groove 28 is coupled to the first guide rail 29 formed on the bottom of the lower case 21 of the housing.

회전부재(25)는 부채꼴로 형성되며 일측이 하부케이스(21)에 고정된 지지 축(30)에 의하여 회전 가능하게 지지된다. 회전부재(25)는 회전반경이 큰 제1위치(원호부분)에 형성된 제1기어부(31)와, 제1기어부(31)보다 회전반경이 작은 제2위치에 형성된 제2기어부(32)를 구비하며, 제1기어부(31)가 입력부재(24)의 제1랙기어부(27)와 결합된다.The rotating member 25 is formed in a fan shape and is rotatably supported by a support shaft 30 fixed to one side of the lower case 21. The rotating member 25 has a first gear portion 31 formed at a first position (circular portion) having a large rotation radius, and a second gear portion formed at a second position having a smaller rotation radius than the first gear portion 31 ( 32, the first gear portion 31 is coupled to the first rack gear portion 27 of the input member (24).

출력부재(26)는 입력부재(24)와 마찬가지로 전후방향으로 긴 길이를 구비한다. 출력부재(26)는 회전부재(25)의 제2기어부(32)와 결합되는 제2랙기어부(33)를 구비하고, 전후로 진퇴를 안내할 수 있도록 길이방향으로 길게 형성된 제2진퇴안내홈(34)을 구비한다. 제2진퇴안내홈(34)은 하부케이스(21)의 바닥에 형성된 제2안내레일(35)과 결합된다.The output member 26, like the input member 24, has a long length in the front-rear direction. The output member 26 has a second rack gear portion 33 coupled with the second gear portion 32 of the rotating member 25, and the second retreat guide is elongated in the longitudinal direction so as to guide the retreat back and forth. The groove 34 is provided. The second retreat guide groove 34 is coupled to the second guide rail 35 formed at the bottom of the lower case 21.

이러한 제1도어개방장치(20A)는 입력부재(24)의 제1랙기어부(27)가 회전부재(25)의 제1기어부(31)에 결합되고, 출력부재(26)의 제2랙기어부(33)가 회전부재(25)의 제2기어부(32)에 결합됨으로써 입력부재(24)에 전달되는 솔레노이드구동장치(23)의 힘을 증폭시켜 출력부재(26) 쪽으로 전달할 수 있도록 한 것이다. 즉 입력부재(24)를 통하여 회전반경이 큰 제1기어부(31)에 전달되는 힘이 회전반경이 작은 제2기어부(32)를 통해 출력부재(26) 쪽으로 전달되도록 함으로써 도어(11)의 내면을 가압하는 출력부재(26)의 힘이 증폭될 수 있도록 한 것이다. In the first door opening device 20A, the first rack gear part 27 of the input member 24 is coupled to the first gear part 31 of the rotating member 25, and the second member of the output member 26 is provided. The rack gear part 33 is coupled to the second gear part 32 of the rotating member 25 to amplify the force of the solenoid drive device 23 transmitted to the input member 24 and transmit it to the output member 26. It would be. In other words, the force transmitted to the first gear portion 31 having a large radius of rotation through the input member 24 is transmitted to the output member 26 through the second gear portion 32 having a small radius of rotation. The force of the output member 26 for pressing the inner surface of the will be amplified.

이러한 힘의 증폭은 제1기어부(31)와 제2기어부(32)의 비를 크게 할수록 커진다. 그러나 기어비가 너무 크면 출력부재(26)의 출력은 커질 수 있지만, 입력부재(24)의 진퇴거리에 비하여 출력부재(26)의 진퇴거리가 너무 짧아질 수 있다. 따라서 기어비는 출력이 입력에 비하여 3~4배 증폭되는 정도로 설정하는 것이 좋다.This amplification of the force increases as the ratio of the first gear portion 31 to the second gear portion 32 increases. However, if the gear ratio is too large, the output of the output member 26 may be large, but the retraction distance of the output member 26 may be too short compared to the retraction distance of the input member 24. Therefore, the gear ratio should be set so that the output is amplified 3 to 4 times compared to the input.

또 도어개방장치(20)는 솔레노이드구동장치(23)의 동작을 제어할 수 있도록 손잡이(14)에 마련된 조작부(37)를 포함한다. 이 조작부(37)는 사용자가 손잡이(14)를 잡을 때 이를 감지하는 감지센서이거나 솔레노이드구동장치(23)에 인가되는 전원을 직접 개폐하는 전원개폐스위치일 수 있다. 조작부(37)가 감지센서인 경우에는 감지센서의 감지신호가 냉장고의 제어부(미도시)로 전달되도록 하고, 제어부가 솔레노이드구동장치(23)의 동작을 제어하도록 할 수 있다. 여기서 도어개방장치(20)를 제어하는 제어부는 냉장고의 전체적인 동작을 제어하는 제어부와 함께 구성되거나 별도로 구성될 수 있다.In addition, the door opening device 20 includes an operation unit 37 provided on the handle 14 to control the operation of the solenoid drive device (23). The operation unit 37 may be a detection sensor that detects this when the user grasps the handle 14 or a power switch that directly opens or closes the power applied to the solenoid driving device 23. When the operation unit 37 is a detection sensor, the detection signal of the detection sensor may be transmitted to a control unit (not shown) of the refrigerator, and the control unit may control the operation of the solenoid driving device 23. The control unit for controlling the door opening device 20 may be configured together with the control unit for controlling the overall operation of the refrigerator or may be configured separately.

다음은 이러한 도어개방장치의 동작에 관하여 설명한다.Next, the operation of the door opening device will be described.

도어(11)의 손잡이(14)를 잡지 않거나 손잡이(14)에 마련된 조작부(37)를 조작하지 않을 경우에는 도 3에 도시한 바와 같이, 솔레노이드구동장치(23)에 전원이 인가되지 않으므로 플런저(23a)가 후퇴한 상태를 유지한다. 따라서 이때는 입력부재(24)가 후퇴하고, 입력부재(24)의 후퇴에 의하여 회전부재(25)가 회전하고, 회전부재(25)의 회전에 의하여 출력부재(26)가 후퇴한다. When the handle 14 of the door 11 is not held or the operation unit 37 provided on the handle 14 is not operated, as shown in FIG. 3, since the power is not applied to the solenoid driving device 23, the plunger ( 23a) remains retracted. Accordingly, at this time, the input member 24 is retracted, the rotary member 25 is rotated by the retraction of the input member 24, and the output member 26 is retracted by the rotation of the rotary member 25.

도어(11)를 개방하기 위해 도어(11)의 손잡이(14)를 잡거나 손잡이(14)에 마련된 조작부(37)를 조작하는 경우에는 도 4에 도시한 바와 같이, 솔레노이드구동장치(23)에 전원이 인가되면서 플런저(23a)가 전진한다. 플런저(23a)는 입력부재(24)를 전방으로 밀어주고, 입력부재(24)의 이동에 의하여 회전부재(25)가 회전한다. When holding the handle 14 of the door 11 to open the door 11 or when operating the operation unit 37 provided in the handle 14, as shown in Figure 4, the power supply to the solenoid drive device 23 As this is applied, the plunger 23a advances. The plunger 23a pushes the input member 24 forward, and the rotating member 25 rotates by the movement of the input member 24.

회전부재(25)가 회전하면 출력부재(26)가 전진하면서 도어(11) 내면을 밀어 주므로 도어(11)가 열린다. 이때 입력부재(24)의 제1랙기어부(27)는 회전부재(25) 의 제1기어부(31)를 회전시키고, 제1기어부(31)보다 회전반경이 작은 제2기어부(32)가 출력부재(26)의 제2랙기어부(33)를 전방으로 이동시키므로 출력이 증폭된다. When the rotating member 25 is rotated, the output member 26 advances and pushes the inner surface of the door 11 so that the door 11 is opened. At this time, the first rack gear part 27 of the input member 24 rotates the first gear part 31 of the rotating member 25, and has a second gear part having a smaller rotation radius than the first gear part 31. The output 32 is amplified because 32 moves the second rack gear portion 33 of the output member 26 forward.

이처럼 본 발명의 도어개방장치(20)는 솔레노이드구동장치(23)를 소형화하면서도 큰 힘으로 도어(11)를 밀어서 개방할 수 있기 때문에 도어(11)를 손쉽게 개방할 수 있다. 특히 본 발명은 솔레노이드구동장치(23)에 의해 입력부재(24)가 직선운동을 하는 구성이기 때문에 종래의 도어개방장치에 비하여 구성을 단순화할 수 있을 뿐 아니라 부피를 소형화할 수 있다.As described above, the door opening device 20 of the present invention can easily open the door 11 because the solenoid drive device 23 can be opened by pushing the door 11 with a large force while miniaturizing the solenoid driving device 23. In particular, since the input member 24 is a linear motion by the solenoid drive device 23, the present invention can simplify the configuration as well as reduce the volume compared to the conventional door opening device.

도 5는 본 발명에 따른 도어개방장치의 다른 실시 예이다. 도 5의 도어개방장치(200)는 회전부재(250)에 기어부들이 형성되지 않고 회전부재(250)가 입력부재(240) 및 출력부재(260)와 링크형태로 연결된 것이다. 5 is another embodiment of the door opening apparatus according to the present invention. In the door opening device 200 of FIG. 5, gears are not formed on the rotating member 250, and the rotating member 250 is connected to the input member 240 and the output member 260 in a link form.

회전부재(250)는 지지축(300, 회전중심)으로부터 이격된 제1위치에 마련된 제1연결핀(251)과, 제1연결핀(251)이 마련된 제1위치보다 회전반경이 작은 제2위치에 마련된 제2연결핀(252)을 구비한다. 입력부재(240)는 제1연결핀(251)과 연결되는 제1연결공(241)을 구비하고, 출력부재(260)는 제2연결핀(252)과 연결되는 제2연결공(261)을 구비한다. 제1연결공(241)과 제2연결공(261)은 회전부재(250)의 회전을 허용함과 동시에 입력부재(240)와 출력부재(260)가 직선운동을 할 수 있도록 하기 위해 진퇴방향과 교차하는 방향으로 길이가 긴 타원형태이다.The rotating member 250 may include a first connecting pin 251 provided at a first position spaced apart from the support shaft 300 (a center of rotation), and a second rotating radius smaller than the first position at which the first connecting pin 251 is provided. The second connection pin 252 is provided at a position. The input member 240 has a first connection hole 241 connected to the first connection pin 251, and the output member 260 has a second connection hole 261 connected to the second connection pin 252. It is provided. The first connection hole 241 and the second connection hole 261 allow the rotation member 250 to rotate and at the same time the input member 240 and the output member 260 to move in a linear direction It is oval shape long in the direction of crossing.

이러한 도어개방장치(200)는 솔레노이드구동장치(230)의 동작에 의해 입력부 재(240)가 전진하면서 회전부재(250)를 회전시키고, 회전부재(250)의 회전에 의하여 출력부재(260)가 전진하면서 도어를 가압하여 개방시킨다. 이때 입력부재(240)와 연결되는 제1연결핀(251)의 회전반경이 출력부재(260)와 연결되는 제2연결핀(252)의 회전반경보다 크기 때문에 출력이 증폭된다. 따라서 크기가 작은 솔레노이드구동장치(230)를 채용하면서도 큰 힘으로 도어를 개방시킬 수 있다.The door opening device 200 rotates the rotating member 250 while the input member 240 is advanced by the operation of the solenoid driving device 230, and the output member 260 is rotated by the rotation of the rotating member 250. Press the door open while moving forward. At this time, since the rotation radius of the first connection pin 251 connected to the input member 240 is larger than the rotation radius of the second connection pin 252 connected to the output member 260, the output is amplified. Therefore, the door can be opened with great force while employing the solenoid drive device 230 having a small size.

이상에서 상세히 설명한 바와 같이, 본 발명에 따른 도어개방장치는 솔레노이드구동장치에 의해 직선운동을 하는 입력부재가 회전부재의 제1위치와 연결되어 회전부재를 회전시키고, 출력부재가 회전부재의 제1위치보다 회전반경이 작은 제2위치에 연결된 상태에서 회전부재의 동작에 의해 전진하는 구조이기 때문에 종래보다 구성을 단순화하고 크기를 소형화할 수 있으면서도 큰 힘으로 도어를 개방시킬 수 있는 효과가 있다.As described above in detail, the door opening device according to the present invention is connected to the first position of the rotary member by the input member having a linear motion by the solenoid drive device to rotate the rotating member, the output member is the first of the rotating member Since the structure is advanced by the operation of the rotating member in a state connected to the second position is smaller than the rotation radius, there is an effect that can open the door with a large force while simplifying the configuration and size can be smaller than the conventional.

Claims (10)

도어를 개방시키는 도어개방장치에 있어서,In the door opening device for opening the door, 직선운동을 유발하는 솔레노이드구동장치와, 상기 솔레노이드구동장치에 의해 진퇴하는 입력부재와, 상기 입력부재의 동작에 의해 회전하도록 그 회전중심과 이격된 제1위치가 상기 입력부재와 연결된 회전부재와, 상기 회전부재의 회전에 의해 직선운동을 하면서 상기 도어를 가압하도록 일측이 상기 회전부재의 제1위치보다 회전반경이 작은 제2위치에 연결된 출력부재를 포함하는 것을 특징으로 하는 도어개방장치.A solenoid driving device for inducing a linear motion, an input member retracted by the solenoid driving device, and a rotating member connected to the input member at a first position spaced apart from the center of rotation to rotate by the operation of the input member; And an output member connected at one side to a second position having a smaller rotation radius than the first position of the rotating member so as to press the door while performing a linear motion by the rotation of the rotating member. 제1항에 있어서,The method of claim 1, 상기 솔레노이드구동장치, 상기 입력부재, 상기 회전부재, 상기 출력부재를 수용하는 하우징을 더 포함하고,Further comprising a housing for receiving the solenoid drive device, the input member, the rotating member, the output member, 상기 하우징은 상기 입력부재의 직선운동을 안내하는 제1안내부와, 상기 출력부재의 직선운동을 안내하는 제2안내부를 포함하는 것을 특징으로 하는 도어개방장치.And the housing includes a first guide part for guiding linear motion of the input member and a second guide part for guiding linear motion of the output member. 제1항 또는 제2항에 있어서,The method according to claim 1 or 2, 상기 회전부재는 상기 제1위치에 마련된 제1기어부와 상기 제2위치에 마련된 제2기어부를 포함하고, 상기 입력부재는 상기 제1기어부와 연결된 제1랙기어부를 포함하고, 상기 출력부재는 상기 제2기어부와 연결된 제2랙기어부를 포함하는 것을 특징으로 하는 도어개방장치.The rotating member includes a first gear portion provided in the first position and a second gear portion provided in the second position, and the input member includes a first rack gear portion connected to the first gear portion, and the output member The door opening device, characterized in that it comprises a second rack gear portion connected to the second gear portion. 제1항 또는 제2항에 있어서,The method according to claim 1 or 2, 상기 회전부재는 상기 제1위치에 마련된 제1연결핀과 상기 제2위치에 마련된 제2연결핀을 포함하고, 상기 입력부재는 상기 제1연결핀과 결합되는 제1연결공을 포함하고, 상기 출력부재는 상기 제2연결핀과 결합되는 제2연결공을 포함하는 것을 특징으로 하는 도어개방장치.The rotating member includes a first connecting pin provided at the first position and a second connecting pin provided at the second position, and the input member includes a first connecting hole coupled to the first connecting pin. The door opening device, characterized in that the output member comprises a second connecting hole coupled to the second connecting pin. 제1항에 있어서,The method of claim 1, 상기 도어는 손잡이를 포함하고, The door comprises a handle, 상기 도어개방장치는 상기 솔레노이드구동장치의 동작제어를 위해 상기 손잡이에 마련된 조작부를 포함하는 것을 특징으로 하는 도어개방장치.The door opening device, the door opening device, characterized in that it comprises an operation portion provided on the handle for controlling the operation of the solenoid drive device. 저장실을 갖춘 본체와, 상기 저장실을 개폐하도록 상기 본체에 설치된 도어와, 상기 도어를 개방시키는 도어개방장치를 포함하는 냉장고에 있어서,A refrigerator comprising a main body having a storage compartment, a door provided in the main body to open and close the storage compartment, and a door opening device that opens the door. 상기 도어개방장치는 직선운동을 유발하는 솔레노이드구동장치와, 상기 솔레노이드구동장치에 의해 진퇴하는 입력부재와, 상기 입력부재의 동작에 의해 회전하도록 그 회전중심과 이격된 제1위치가 상기 입력부재와 연결된 회전부재와, 상기 회전부재의 회전에 의해 직선운동을 하면서 상기 도어를 가압하도록 일측이 상기 회전부재의 제1위치보다 회전반경이 작은 제2위치에 연결된 출력부재를 포함하는 것을 특징으로 하는 냉장고.The door opening device includes a solenoid driving device that causes a linear motion, an input member retreating by the solenoid driving device, and a first position spaced from the center of rotation so as to rotate by the operation of the input member. A connected rotating member and an output member connected to a second position of which one side of the rotating member is smaller than the first position of the rotating member to press the door while linearly moving by the rotation of the rotating member. . 제6항에 있어서,The method of claim 6, 상기 도어개방장치는 솔레노이드구동장치, 상기 입력부재, 상기 회전부재, 상기 출력부재를 수용하는 하우징을 더 포함하고,The door opening device further includes a housing for receiving the solenoid drive device, the input member, the rotating member, the output member, 상기 하우징은 상기 입력부재의 직선운동을 안내하는 제1안내부와, 상기 출력부재의 직선운동을 안내하는 제2안내부를 포함하는 것을 특징으로 하는 냉장고.The housing includes a first guide part for guiding linear motion of the input member and a second guide part for guiding linear motion of the output member. 제6항 또는 제7항에 있어서,The method according to claim 6 or 7, 상기 회전부재는 상기 제1위치에 마련된 제1기어부와 상기 제2위치에 마련된 제2기어부를 포함하고, 상기 입력부재는 상기 제1기어부와 연결된 제1랙기어부를 포함하고, 상기 출력부재는 상기 제2기어부와 연결된 제2랙기어부를 포함하는 것을 특징으로 하는 냉장고.The rotating member includes a first gear portion provided in the first position and a second gear portion provided in the second position, and the input member includes a first rack gear portion connected to the first gear portion, and the output member The refrigerator comprising a second rack gear portion connected to the second gear portion. 제6항 또는 제7항에 있어서,The method according to claim 6 or 7, 상기 회전부재는 상기 제1위치에 마련된 제1연결핀과 상기 제2위치에 마련된 제2연결핀을 포함하고, 상기 입력부재는 상기 제1연결핀과 결합되는 제1연결공을 포함하고, 상기 출력부재는 상기 제2연결핀과 결합되는 제2연결공을 포함하는 것을 특징으로 하는 냉장고.The rotating member includes a first connecting pin provided at the first position and a second connecting pin provided at the second position, and the input member includes a first connecting hole coupled to the first connecting pin. The output member is a refrigerator, characterized in that it comprises a second connecting hole coupled to the second connecting pin. 제6항에 있어서,The method of claim 6, 상기 도어는 손잡이를 포함하고, The door comprises a handle, 상기 도어개방장치는 상기 솔레노이드구동장치의 동작제어를 위해 상기 손잡이에 마련된 조작부를 포함하는 것을 특징으로 하는 냉장고.The door opening device comprises a refrigerator provided in the handle for the operation control of the solenoid drive device.
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KR100817782B1 (en) * 2006-12-13 2008-03-31 박희운 Household appliances door public use opening and shutting apparatus
KR200449998Y1 (en) * 2008-09-18 2010-08-30 주식회사 에스 씨디 Device For Opening Doors Of Refrigerator
KR20110040030A (en) * 2009-10-13 2011-04-20 엘지전자 주식회사 Opening method of refrigerator door
KR101447291B1 (en) * 2008-01-09 2014-10-06 엘지전자 주식회사 Apparatus for automatically opening door of refrigerator
KR101484039B1 (en) * 2008-01-11 2015-01-20 삼성전자 주식회사 An opening device for refrigerator
CN106014062A (en) * 2016-05-27 2016-10-12 合肥华凌股份有限公司 Door opening device and refrigerator
CN106855335A (en) * 2017-02-07 2017-06-16 泉州泉港润美环保科技有限公司 One kind is used for industrial environmental protection type refrigeration equipment
WO2018084582A1 (en) * 2016-11-03 2018-05-11 엘지전자 주식회사 Refrigerator
EP2194347A3 (en) * 2008-12-04 2018-06-20 Samsung Electronics Co., Ltd. Refrigerator and method of controlling the same
WO2018128378A1 (en) * 2017-01-03 2018-07-12 Samsung Electronics Co., Ltd. Refrigerator
WO2018186569A1 (en) * 2017-04-05 2018-10-11 엘지전자 주식회사 Refrigerator
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KR100817782B1 (en) * 2006-12-13 2008-03-31 박희운 Household appliances door public use opening and shutting apparatus
KR101447291B1 (en) * 2008-01-09 2014-10-06 엘지전자 주식회사 Apparatus for automatically opening door of refrigerator
KR101484039B1 (en) * 2008-01-11 2015-01-20 삼성전자 주식회사 An opening device for refrigerator
KR200449998Y1 (en) * 2008-09-18 2010-08-30 주식회사 에스 씨디 Device For Opening Doors Of Refrigerator
EP2194347A3 (en) * 2008-12-04 2018-06-20 Samsung Electronics Co., Ltd. Refrigerator and method of controlling the same
KR20110040030A (en) * 2009-10-13 2011-04-20 엘지전자 주식회사 Opening method of refrigerator door
US11808513B2 (en) 2014-01-07 2023-11-07 Samsung Electronics Co., Ltd. Refrigerator
KR20210075952A (en) * 2014-01-07 2021-06-23 삼성전자주식회사 Refrigerator
CN106014062B (en) * 2016-05-27 2018-06-22 合肥华凌股份有限公司 Door opener and refrigerator
CN106014062A (en) * 2016-05-27 2016-10-12 合肥华凌股份有限公司 Door opening device and refrigerator
WO2018084582A1 (en) * 2016-11-03 2018-05-11 엘지전자 주식회사 Refrigerator
EP3907451A1 (en) * 2016-11-03 2021-11-10 LG Electronics Inc. Refrigerator
EP4417778A3 (en) * 2016-11-03 2024-10-09 LG Electronics Inc. Refrigerator
KR20180049725A (en) * 2016-11-03 2018-05-11 엘지전자 주식회사 Refrigerator
US10837214B2 (en) 2016-11-03 2020-11-17 Lg Electronics Inc. Refrigerator
EP3537071A4 (en) * 2016-11-03 2020-06-03 LG Electronics Inc. -1- Refrigerator
US10995536B2 (en) 2017-01-03 2021-05-04 Samsung Electronics Co., Ltd. Refrigerator
WO2018128378A1 (en) * 2017-01-03 2018-07-12 Samsung Electronics Co., Ltd. Refrigerator
CN106855335A (en) * 2017-02-07 2017-06-16 泉州泉港润美环保科技有限公司 One kind is used for industrial environmental protection type refrigeration equipment
CN110494705A (en) * 2017-04-05 2019-11-22 Lg电子株式会社 Refrigerator
WO2018186569A1 (en) * 2017-04-05 2018-10-11 엘지전자 주식회사 Refrigerator
KR20180119027A (en) * 2017-04-24 2018-11-01 엘지전자 주식회사 Refrigerator
WO2018199600A1 (en) * 2017-04-24 2018-11-01 엘지전자 주식회사 Refrigerator
US11466498B2 (en) 2017-04-24 2022-10-11 Lg Electronics Inc. Refrigerator
US11767702B2 (en) 2017-04-24 2023-09-26 Lg Electronics Inc. Refrigerator
WO2019116208A1 (en) * 2017-12-14 2019-06-20 Atrom Spółką Z Ograniczoną Odpowiedzialnością Spółka Komandytowa Device for setting the dishwasher door ajar after completion of cycle
CN113048710A (en) * 2019-12-26 2021-06-29 佛山市云米电器科技有限公司 Automatic double-door control method and automatic double-door device
CN111502471A (en) * 2020-04-23 2020-08-07 长虹美菱股份有限公司 Automatic door opening and closing device for refrigerator

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