KR20040001049A - A door switch circuit of refrigerator - Google Patents

A door switch circuit of refrigerator Download PDF

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Publication number
KR20040001049A
KR20040001049A KR1020020036109A KR20020036109A KR20040001049A KR 20040001049 A KR20040001049 A KR 20040001049A KR 1020020036109 A KR1020020036109 A KR 1020020036109A KR 20020036109 A KR20020036109 A KR 20020036109A KR 20040001049 A KR20040001049 A KR 20040001049A
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KR
South Korea
Prior art keywords
door
lamp
refrigerator
switch
relay
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Application number
KR1020020036109A
Other languages
Korean (ko)
Inventor
조남선
Original Assignee
엘지전자 주식회사
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Application filed by 엘지전자 주식회사 filed Critical 엘지전자 주식회사
Priority to KR1020020036109A priority Critical patent/KR20040001049A/en
Publication of KR20040001049A publication Critical patent/KR20040001049A/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G41/00—Supporting frames or bases for conveyors as a whole, e.g. transportable conveyor frames
    • B65G41/007—Means for moving conveyor frames and control arrangements therefor
    • B65G41/008—Means for moving conveyor frames and control arrangements therefor frames mounted on wheels or caterpillar
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G41/00—Supporting frames or bases for conveyors as a whole, e.g. transportable conveyor frames
    • B65G41/001—Supporting frames or bases for conveyors as a whole, e.g. transportable conveyor frames with the conveyor adjustably mounted on the supporting frame or base
    • B65G41/002—Pivotably mounted
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G2207/00—Indexing codes relating to constructional details, configuration and additional features of a handling device, e.g. Conveyors
    • B65G2207/40—Safety features of loads, equipment or persons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G67/00—Loading or unloading vehicles
    • B65G67/02—Loading or unloading land vehicles
    • B65G67/04—Loading land vehicles
    • B65G67/08—Loading land vehicles using endless conveyors

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Abstract

PURPOSE: A door switch circuit of a refrigerator is provided to prevent generation of sparks even when refrigerant is leaked by using a contactless lid switch as a door switch. CONSTITUTION: A door switch circuit includes a lamp(20) placed on an upper side of a refrigerator main body, and connected with a power input end(10) so as to be switched on when a door is opened; a contactless lid switch(30) connected with the lamp and having a contact point opened and closed by magnetic field of a magnet placed on the door; and a relay(40) connected with the contactless lid switch in parallel to be switched on when the contact point of the contactless lid switch is closed. The contact point of the contactless lid switch is closed to switch on the relay and the lamp when the door is opened. The lamp is switched off when the door is closed. One side of the power input end is connected with one side of the lamp. The other side of the lamp is connected with one side of the contactless lid switch and one side of the relay. The other side of the power input end is connected with the other side of the relay and the other side of the contactless lid switch to supply A/C power.

Description

냉장고의 도어스위치회로{A door switch circuit of refrigerator}A door switch circuit of refrigerator

본 발명은 냉장고에 관한 것으로, 더욱 상세하게는 냉장고의 도어의 개폐여부를 감지하여 램프가 점등/소등하도록 제어하는 냉장고의 도어스위치회로에 관한 것이다.The present invention relates to a refrigerator, and more particularly, to a door switch circuit of a refrigerator which controls whether a lamp is turned on / off by detecting whether a door of a refrigerator is opened or closed.

이하 종래 기술에 따른 냉장고용 도어스위치회로에 대해 상세하게 살펴보면다음과 같다.Hereinafter, the door switch circuit for a refrigerator according to the related art will be described in detail.

도 1은 종래 기술에 따른 냉장고에 구비된 도어스위치의 사시도이다.1 is a perspective view of a door switch provided in the refrigerator according to the prior art.

도면에 도시된 바와 같이 냉장고 본체(R)가 있고, 상기 냉장고의 상측에 램프(2)가 구성된다. 그리고 상기 냉장고 본체(R)와 연결된 냉장고 도어(D)가 구성되고, 상기 냉장고 도어(D)에는 자석(5)이 구비된다. 그리고 상기 자석(5)과 냉장고 본체(R) 사이에는 도어스위치(3)가 구비되어, 냉장고 도어(D)의 개폐여부를 감지할 수 있도록 한다.As shown in the figure, there is a refrigerator main body R, and a lamp 2 is configured above the refrigerator. In addition, a refrigerator door D connected to the refrigerator main body R is configured, and the refrigerator door D is provided with a magnet 5. A door switch 3 is provided between the magnet 5 and the refrigerator body R to detect whether the refrigerator door D is opened or closed.

도 2는 종래 기술에 따른 냉장고의 도어스위치 회로이다.2 is a door switch circuit of a refrigerator according to the prior art.

상기 회로의 제어구성에 대해 살펴보면 전원플러그(1)의 일측은 램프(2)와 연결되고, 램프(2)의 다른 한 측은 도어스위치(3)와 연결된다. 한편, 전원플러그(1)의 다른 일측은 도어스위치(3)의 다른 한 측과 연결된다.Looking at the control configuration of the circuit, one side of the power plug 1 is connected to the lamp 2, the other side of the lamp 2 is connected to the door switch (3). On the other hand, the other side of the power plug 1 is connected to the other side of the door switch (3).

전원플러그(1)를 통해서 입력된 전원(1)이 램프(2)와 도어스위치(3)로 전달된다. 상기 도어스위치(3)는 도어(D)에 부착되어 도어(D)의 열림 및 닫힘에 따라 온/오프 스위칭동작한다.The power 1 input through the power plug 1 is transmitted to the lamp 2 and the door switch 3. The door switch 3 is attached to the door (D) and the on / off switching operation according to the opening and closing of the door (D).

상기 도어스위치(3)의 스위칭동작에 대해 좀 더 상세하게 살펴보면 다음과 같다. 도어스위치(3)에 구성된 스프링에 의해서 전원이 단락되도록 스위치접점이 동작하여 고내에 장착된 램프(2)를 점등 또는 소등하게 된다.Looking at the switching operation of the door switch 3 in more detail as follows. The switch contact operates to short-circuit the power by a spring configured in the door switch 3, thereby turning on or off the lamp 2 mounted in the refrigerator.

즉, 냉장고 도어(D)에 부착된 자석(5)이 도어스위치(3)에 근접하면, 상기 도어스위치(3)가 열리게 되어 교류전원이 램프(2)에 전달하지 못한다. 이에 따라 램프(2)가 점등되지 않는다.That is, when the magnet 5 attached to the refrigerator door D approaches the door switch 3, the door switch 3 is opened so that AC power does not transfer to the lamp 2. As a result, the lamp 2 is not turned on.

그러나 사용자가 냉장고 도어(D)를 열어 냉장고 도어(D)에 부착된 자석(5)이 도어스위치(3)에서 멀어지면, 상기 도어스위치(3)가 닫히면서 교류전원이 램프(2)에 전달된다. 이에 따라 램프(2)가 점등된다.However, when the user opens the refrigerator door D and the magnet 5 attached to the refrigerator door D moves away from the door switch 3, the door switch 3 is closed and AC power is transmitted to the lamp 2. do. As a result, the lamp 2 is turned on.

상기와 같이 냉장고 도어(D)에 부착된 도어스위치(3)는 램프에 공급되는 교류전원의 흐름을 제어한다. 이때, 천연가스냉매를 사용하는 냉장고에 있어서 냉매가 누설되는 경우, 스프링이 부착된 도어스위치의 스위칭동작시 스파크가 발생될 수 있다. 이때 발생된 스파크가 냉매와 혼합되어 폭발할 수 있는 문제점이 있었다.As described above, the door switch 3 attached to the refrigerator door D controls the flow of AC power supplied to the lamp. At this time, when the refrigerant leaks in the refrigerator using the natural gas refrigerant, sparks may be generated during the switching operation of the door switch with a spring. At this time, there was a problem that the spark generated may be mixed with the refrigerant to explode.

따라서 본 발명의 목적은 냉장고의 도어스위치로서 무접점 리드스위치를 사용하여, 냉매가 누설된 경우에도 스파크가 발생되지 않는 냉장고의 도어스위치회로를 제공함에 있다.Accordingly, an object of the present invention is to provide a door switch circuit of a refrigerator in which a spark does not occur even when a refrigerant leaks by using a contactless reed switch as a door switch of a refrigerator.

도 1은 종래 기술에 따른 냉장고에 구비된 도어스위치의 사시도.1 is a perspective view of a door switch provided in the refrigerator according to the prior art.

도 2는 종래 기술에 따른 냉장고의 도어스위치회로.2 is a door switch circuit of the refrigerator according to the prior art.

도 3은 본 발명에 따른 냉장고에 구비된 리드스위치의 사시도.Figure 3 is a perspective view of the reed switch provided in the refrigerator according to the present invention.

도 4는 본 발명에 따른 냉장고의 도어스위치회로.4 is a door switch circuit of the refrigerator according to the present invention.

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

10 : 전원입력단20 : 램프10: power input terminal 20: lamp

30 : 무접점 리드스위치40 : 릴레이30: solid state reed switch 40: relay

50 : 자석R : 냉장고본체50 magnet R: refrigerator body

D : 도어D: Door

상기 목적을 달성하기 위한 본 발명에 따른 냉장고의 도어스위치회로는 전원에 연결되어 도어가 열리면 점등되는 램프와; 상기 램프에 연결되어, 도어에 구비된 자석의 자계에 의해 접점의 열림/닫힘이 제어되는 리드스위치와; 상기 리드스위치와 병렬로 연결되어, 리드스위치의 접점이 닫히면 온동작하는 릴레이를 포함하여 구성하고, 도어를 열면, 리드스위치의 접점이 닫혀 릴레이가 온구동되어 램프가 점등되는 것을 특징으로 한다.The door switch circuit of the refrigerator according to the present invention for achieving the above object is a lamp that is connected to the power source and is turned on when the door is opened; A reed switch connected to the lamp to control opening / closing of a contact by a magnetic field of a magnet provided in the door; It is connected in parallel with the reed switch, comprising a relay that is on when the contact of the reed switch is closed on operation, and when the door is opened, the contact of the reed switch is closed, the relay is driven on, characterized in that the lamp is turned on.

이하 본 발명에 따른 냉장고의 도어스위치회로에 대해 살펴보면 다음과 같다.Hereinafter, the door switch circuit of the refrigerator according to the present invention will be described.

도 3은 본 발명에 따른 냉장고에 구비된 리드스위치의 사시도이다.3 is a perspective view of the reed switch provided in the refrigerator according to the present invention.

도면에 도시된 바와 같이, 냉장고 본체(R)가 구비되어져 있고, 상기 냉장고 본체(R)의 상측에 램프(20)가 구성된다. 상기 램프(20)는 도어(D)가 열림과 동시에 점등되고, 도어(D)가 닫히면 소등된다.As shown in the figure, a refrigerator main body R is provided, and a lamp 20 is formed above the refrigerator main body R. As shown in FIG. The lamp 20 turns on at the same time as the door D is opened, and goes out when the door D is closed.

한편, 상기 냉장고 본체에 연결된 냉장고 도어(D)가 구비된다. 상기 냉장고 도어(D)의 일측에는 마그넷(50)이 구비된다. 그리고 상기 마그넷(50)과 냉장고 본체(R) 사이에는 리드스위치(30)가 구성된다. 이때, 상기 리드스위치(30)는 무접점 스위치로서, 자기에 따라 동작하므로 비접촉형으로 안정적인 특성을 가진다.Meanwhile, a refrigerator door D connected to the refrigerator main body is provided. One side of the refrigerator door (D) is provided with a magnet (50). And the reed switch 30 is configured between the magnet 50 and the refrigerator main body (R). At this time, the reed switch 30 is a contactless switch, and operates according to a magnetic, thus having a non-contact type stable characteristic.

도 4는 본 발명에 따른 냉장고의 도어스위치 회로이다.4 is a door switch circuit of the refrigerator according to the present invention.

상기 회로 구성의 연결관계에 대해 살펴보면 다음과 같다.Looking at the connection relationship of the circuit configuration as follows.

상기 회로의 제어구성에 대해 살펴보면 전원입력단 일측은 램프(20)와 연결되고, 램프(20)의 다른 한 측은 리드스위치(30)의 한 측과 연결된다. 또한, 상기 램프(20)는 릴레이(40)의 한 측과 연결된다. 상기 리드스위치(30)와 릴레이(40)는 병렬로 연결되어 있다. 한편, 전원입력단 다른 일측은 각각 릴레이(40)의 남은 다른 측과 리드스위치(30)의 남은 다른 측에 각각 연결되어 교류전원이 공급된다.Looking at the control configuration of the circuit, one side of the power input terminal is connected to the lamp 20, the other side of the lamp 20 is connected to one side of the reed switch (30). In addition, the lamp 20 is connected to one side of the relay 40. The reed switch 30 and the relay 40 are connected in parallel. On the other hand, the other side of the power input terminal is respectively connected to the other side of the remaining of the relay 40 and the other side of the reed switch 30 is supplied with AC power.

상기와 같이 제어연결된 회로의 동작제어과정에 대해 좀 더 상세하게 살펴보면 다음과 같다.Looking at the operation control process of the control-connected circuit in more detail as follows.

전원입력단(10)을 통해서 인가된 교류전원은 램프(20)와 리드스위치(30)로 전달된다. 이때, 리드스위치(30)는 도어(D)의 열림 및 닫힘에 따라 도어(D)에 부착된 마그넷(50)의 자계에 따라 온/오프 스위칭동작한다.AC power applied through the power input terminal 10 is transmitted to the lamp 20 and the reed switch 30. At this time, the reed switch 30 is on / off switching operation according to the magnetic field of the magnet 50 attached to the door (D) in accordance with the opening and closing of the door (D).

상기 리드스위치의 스위칭동작에 대해 좀 더 상세하게 살펴보면 다음과 같다.Looking at the switching operation of the reed switch in more detail as follows.

사용자가 냉장고 도어(D)를 열어 냉장고 도어(D)에 부착된 자석(50)이 냉장고 본체에 구비된 리드스위치(30)에서 멀어지면, 상기 리드스위치(30)는 도어(D)에 부착된 자석(50)에 따른 자기에 의해서 리드스위치(30)가 구동하게 된다. 이로 인해서 상기 리드스위치(30)와 병렬연결된 릴레이(40)가 닫히게 된다. 이로 인해서 전원입력단(10)으로부터 공급된 교류전원이 릴레이(40)를 통과하여 램프(20)에 도달할 수 있다. 그리고 상기와 같이 램프(20)에 교류전원이 전달되면, 상기 램프(20)는 점등된다.When the user opens the refrigerator door D and the magnet 50 attached to the refrigerator door D moves away from the reed switch 30 provided in the refrigerator main body, the reed switch 30 is attached to the door D. The reed switch 30 is driven by the magnetism of the magnet 50. As a result, the relay 40 connected in parallel with the reed switch 30 is closed. As a result, the AC power supplied from the power input terminal 10 may pass through the relay 40 to reach the lamp 20. When the AC power is transferred to the lamp 20 as described above, the lamp 20 is turned on.

한편, 사용자가 냉장고 도어(D)를 닫아 냉장고 도어(D)에 부착된 자석(50)이 냉장고 본체에 구비된 리드스위치(30)에 근접하면, 상기 리드스위치(30)는 도어(D)에 부착된 자석(50)에 따른 자기에 의해서 리드스위치(30)가 오픈된다. 이로 인해서 상기 리드스위치(30)와 병렬연결된 릴레이(40)가 열리게 된다. 이로 인해서 전원입력단(10)으로부터 공급된 교류전원이 릴레이(40)에 전달되지 못하여, 결과적으로 램프(20)에 교류전원이 인가되지 않는다. 이에 따라 램프(20)가 소등된다.On the other hand, when the user closes the refrigerator door D and the magnet 50 attached to the refrigerator door D approaches the reed switch 30 provided in the refrigerator body, the reed switch 30 is connected to the door D. The reed switch 30 is opened by the magnet according to the attached magnet 50. As a result, the relay 40 connected in parallel with the reed switch 30 is opened. As a result, AC power supplied from the power input terminal 10 may not be transmitted to the relay 40, and as a result, AC power is not applied to the lamp 20. As a result, the lamp 20 is turned off.

이상 살펴본 바와 같이 본 발명은 무접점 리드스위치를 사용하여 릴레이의 구동을 제어하는 것을 기본적인 기술적 사상으로 한다. 이때, 도어가 닫히면 도어에 부착된 자석에 의해서 리드스위치가 열리고, 릴레이의 구동이 오프동작하여 램프가 소등되고, 도어가 열리면 도어에 부착된 자석에 의해 리드스위치가 닫힘 동작하고, 이와 동시에 릴레이가 온구동하여 램프가 점등된다.As described above, in the present invention, it is a basic technical idea to control the driving of a relay using a solid state reed switch. At this time, when the door is closed, the reed switch is opened by the magnet attached to the door, the driving of the relay is turned off and the lamp is turned off. When the door is opened, the reed switch is closed by the magnet attached to the door. The lamp is turned on by driving.

본 발명의 권리는 위에서 설명된 실시예에 한정되지 않고 청구범위에 기재된 바에 의해 정의되며, 본 발명의 분야에서 통상의 지식을 가진 자가 청구범위에 기재된 권리범위 내에서 다양한 변형과 개작을 할 수 있다는 것은 자명하다.The rights of the present invention are not limited to the embodiments described above, but are defined by the claims, and those skilled in the art can make various modifications and adaptations within the scope of the claims. It is self-evident.

따라서 본 발명에 따른 냉장고의 도어스위치회로로 인해서 다음과 같은 효과를 기대할 수 있다.Therefore, the following effects can be expected due to the door switch circuit of the refrigerator according to the present invention.

상기 리드스위치에는 스프링이 없어 냉장고 도어를 외부 케이스와 밀착시켜 고내 냉기가 케이스 외부로 토출되는 것을 방지할 수 있다. 또한 리드스위치는 무접점 스위치로서, 천연가스 냉매 누설에 따른 스파크 발생이 일어나지 않아, 폭발할 수 있는 위험을 감소시킬 수 있다.Since the reed switch has no spring, the refrigerator door may be in close contact with the outer case, thereby preventing cold air from being discharged to the outside of the case. In addition, the reed switch is a contactless switch, the spark does not occur due to leakage of the natural gas refrigerant, it is possible to reduce the risk of explosion.

Claims (1)

전원에 연결되어 도어가 열리면 점등되는 램프와;A lamp that is connected to a power source and is lit when the door is opened; 상기 램프에 연결되어, 도어에 구비된 자석의 자계에 의해 접점의 열림/닫힘이 제어되는 리드스위치와;A reed switch connected to the lamp to control opening / closing of a contact by a magnetic field of a magnet provided in the door; 상기 리드스위치와 병렬로 연결되어, 리드스위치의 접점이 닫히면 온동작하는 릴레이를 포함하여 구성하고,It is connected in parallel with the reed switch, and comprises a relay that operates on when the contact of the reed switch is closed, 도어를 열면, 리드스위치의 접점이 닫혀 릴레이가 온구동되어 램프가 점등되는 것을 특징으로 하는 냉장고의 도어스위치회로.When the door is opened, the contact of the reed switch is closed, the relay is driven on the door switch circuit of the refrigerator, characterized in that the lamp is turned on.
KR1020020036109A 2002-06-26 2002-06-26 A door switch circuit of refrigerator KR20040001049A (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR880010634U (en) * 1986-11-07 1988-07-27 삼성전자 주식회사 Refrigerator door switch
KR890001168U (en) * 1987-06-20 1989-03-17 주식회사 금성사 Solid state switch circuit of the refrigerator
KR20010002314U (en) * 1998-12-14 2001-10-23 구자홍 Lamp auto off device of the refrigerator

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR880010634U (en) * 1986-11-07 1988-07-27 삼성전자 주식회사 Refrigerator door switch
KR890001168U (en) * 1987-06-20 1989-03-17 주식회사 금성사 Solid state switch circuit of the refrigerator
KR20010002314U (en) * 1998-12-14 2001-10-23 구자홍 Lamp auto off device of the refrigerator

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