KR100381421B1 - cooling system - Google Patents
cooling system Download PDFInfo
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- KR100381421B1 KR100381421B1 KR10-2001-0000644A KR20010000644A KR100381421B1 KR 100381421 B1 KR100381421 B1 KR 100381421B1 KR 20010000644 A KR20010000644 A KR 20010000644A KR 100381421 B1 KR100381421 B1 KR 100381421B1
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- South Korea
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- valve body
- refrigerant
- valve
- magnetic force
- closing
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Classifications
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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
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
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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
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/40—Fluid line arrangements
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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
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
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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
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B5/00—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity
- F25B5/02—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity arranged in parallel
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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
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2600/00—Control issues
- F25B2600/25—Control of valves
- F25B2600/2521—On-off valves controlled by pulse signals
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
본 발명은, 복수의 증발기와, 상기 증발기들로부터의 냉매를 압축하는 단일의 압축기와, 상기 압축기로부터의 냉매를 응축하는 응축기를 갖는 냉각장치에 관한 것으로서, 상기 응축기로부터 냉매를 수령하는 유입포트와, 상기 각 증발기를 향한 각각의 유출포트와, 자성체로 형성되며 상기 유입포트와 각 유출포트간의 냉매유동을 개폐하는 각각의 밸브체와, 상기 밸브체를 축선방향을 따라 선형이동가능하도록 수용하며 상기 밸브체에 의해 개폐가능한 냉매통과공을 갖는 밸브체하우징과, 상기 각 밸브체를 개폐구동하는 각각의 구동부와, 상기 각 구동부를 독립적으로 제어하는 제어부를 포함하며, 상기 구동부는 상기 밸브체를 자력에 의해 이동시키는 전기적 자력발생부인는 것을 특징으로 한다. 이에 의하여, 복수의 증발기의 냉매유로를 독립적으로 개폐 가능한 밸브를 갖는 냉각장치를 제공할 수 있다.The present invention relates to a cooling device having a plurality of evaporators, a single compressor for compressing the refrigerant from the evaporators, and a condenser for condensing the refrigerant from the compressor, the inlet port receiving the refrigerant from the condenser; And each outlet port facing each evaporator, each valve body formed of a magnetic body and opening and closing a refrigerant flow between the inlet port and each outlet port, and accommodating the valve body to be linearly moved along an axial direction. A valve body housing having a refrigerant passage opening and closing which can be opened and closed by a valve body, each driving unit for opening and closing each valve body, and a control unit for independently controlling each driving unit, wherein the driving unit magnetically controls the valve body. It is characterized in that the magnetic force generating portion to move by. Thereby, the cooling apparatus which has the valve which can open and close the refrigerant flow path of several evaporator independently can be provided.
Description
본 발명은 냉각장치에 관한 것으로서, 보다 상세하게는 복수의 증발기로의 냉매유입을 독립적으로 선택할 수 있는 냉각장치에 대한 것이다.The present invention relates to a cooling device, and more particularly, to a cooling device capable of independently selecting a refrigerant flow into a plurality of evaporators.
냉각장치는 냉동사이클에 의해 구동되는데, 냉동사이클은 기체상태의 고온고압으로 압축하는 압축기와, 압축기에서 압축된 고온고압의 기체상태의 냉매를 액체상태로 응축시키는 응축기와, 응축기를 거친 냉매를 감압시키는 모세관과, 모세관에서 감압된 냉매를 증발시키는 증발기로 구성되어 있다.The refrigeration unit is driven by a refrigeration cycle. The refrigeration cycle is a compressor that compresses gas at high temperature and high pressure, a condenser that condenses the gas refrigerant at high pressure and high pressure in the liquid state, and a refrigerant that passes through the condenser. It consists of a capillary tube and an evaporator for evaporating the refrigerant reduced in the capillary tube.
전술한 구성의 냉동사이클은 증발기가 하나로 구성되어 있으나, 복수의 냉각실을 가지는 냉각장치의 경우에는 하나의 압축기에 의해 각 냉각실에 해당하는 증발기로 냉매를 공급하여 냉각실을 냉각시킨다.The refrigeration cycle of the above-described configuration is composed of one evaporator, in the case of a cooling device having a plurality of cooling chambers by supplying a refrigerant to the evaporator corresponding to each cooling chamber by one compressor to cool the cooling chamber.
이처럼, 복수의 냉각실을 가지는 냉각장치의 한 예로서 두 개의 냉각실을 가지는 김치냉장고를 들 수 있다.As such, as an example of a cooling apparatus having a plurality of cooling chambers, there may be mentioned a kimchi refrigerator having two cooling chambers.
김치냉장고의 압축기의 토출측에는 냉매을 응축시키는 응축기가 연결되어 있으며, 응축기의 토출측에는 냉매를 분기시키는 3방밸브라고 불리우는 바이스테이블밸브가 접속되어 있다.A condenser for condensing the refrigerant is connected to the discharge side of the compressor of the Kimchi refrigerator, and a vise table valve called a three-way valve for branching the refrigerant is connected to the discharge side of the condenser.
바이스테이블밸브(50)는 도 5에서 볼 수 있는 바와 같이, 3개의 포트를 구비하고 있는데, 냉매가 유입되는 한 개의 포트(52)와, 냉매를 유출되는 두 개의 포트(53)와, 각 포트의 유로를 절환시키는 단일의 솔레노이드부를 구비하고 있다.As shown in FIG. 5, the vice table valve 50 includes three ports, one port 52 through which refrigerant flows in, two ports 53 through which refrigerant flows out, and each port. A single solenoid portion for switching the flow path is provided.
솔레노이드부는 전원을 인가받아 자장을 발생시키는 솔레노이드코일(51)과, 솔레노이드코일(51)이 발생시킨 자장의 방향에 따라서 운동하는 플런저(55)로 이루어진다.The solenoid portion includes a solenoid coil 51 for generating a magnetic field by receiving power and a plunger 55 that moves along the direction of the magnetic field generated by the solenoid coil 51.
제어부의 제어에 따라 솔레노이드코일(51)에 전원이 인가되면 솔레노이드코일(51)에서는 자장이 발생한다. 솔레노이드코일(51)에 자장이 발생하게 되면 그 자장에 의하여 플런저(55)는 냉매가 유출되는 두 개의 포트(53)의 유로를 교대로 개폐시킨다.When power is applied to the solenoid coil 51 under the control of the controller, the magnetic field is generated in the solenoid coil 51. When a magnetic field is generated in the solenoid coil 51, the plunger 55 alternately opens and closes the flow path of the two ports 53 through which the refrigerant flows out.
전술한 종래의 바이스테이블밸브는 냉매를 단일의 포트로만 공급하기 때문에 두 개의 유로를 동시에 제어할 수가 없다.The conventional vice table valve described above cannot control two flow paths at the same time because the refrigerant is supplied only to a single port.
따라서, 본 발명의 목적은, 복수의 증발기의 냉매유로를 독립적으로 개폐할 수 있는 밸브를 갖는 냉각장치를 제공하는 것이다.It is therefore an object of the present invention to provide a cooling apparatus having a valve capable of independently opening and closing a refrigerant passage of a plurality of evaporators.
도 1은 본 발명에 따른 냉각장치의 개략도,1 is a schematic view of a cooling apparatus according to the present invention,
도 2는 도 1의 냉각장치의 밸브의 측단면도,Figure 2 is a side cross-sectional view of the valve of the cooling device of Figure 1,
도 3은 도 1의 밸브의 구동회로도,3 is a drive circuit diagram of the valve of FIG.
도 4(A)와 도 4(B)는 도 1의 밸브의 제어신호도,4 (A) and 4 (B) are control signal diagrams of the valve of FIG. 1,
도 5는 종래의 밸브의 개략도이다.5 is a schematic view of a conventional valve.
* 도면의 주요 부분에 대한 부호의 설명* Explanation of symbols for the main parts of the drawings
10 : 바이스테이블밸브 11 : 응축기10 Vise table valve 11 Condenser
13 : 압축기 15a, 15b : 증발기13: compressor 15a, 15b: evaporator
16 : 냉매유입공 17 : 영구자석16: refrigerant inlet hole 17: permanent magnet
18 : 냉매유동공 20 : 밸브케이싱18: refrigerant flow hole 20: valve casing
21a. 21b : 솔레노이드코일 22 : 냉매유입포트21a. 21b: solenoid coil 22: refrigerant inlet port
23a, 23b : 밸브체 25a, 25b : 냉매유출포트23a, 23b: valve body 25a, 25b: refrigerant outlet port
27 : 밸브체하우징 29 : 밸브체가이드27: valve body housing 29: valve body guide
30 : 제어부 31a, 31a′,31b, 31b′ : 릴레이스위치30: control part 31a, 31a ', 31b, 31b': relay switch
33a, 33b : 다이오드 35 : 트라이액33a, 33b: diode 35: triac
37a, 37b : 출력부 39 : 직류전원입력부37a, 37b: output section 39: DC power input section
상기 목적은, 본 발명에 따라, 복수의 증발기와, 상기 증발기들로부터의 냉매를 압축하는 단일의 압축기와, 상기 압축기로부터의 냉매를 응축하는 응축기를 갖는 냉각장치에 있어서, 상기 응축기로부터 냉매를 수령하는 유입포트와, 상기 각 증발기를 향한 각각의 유출포트와, 자성체로 형성되며 상기 유입포트와 각 유출포트간의 냉매유동을 개폐하는 각각의 밸브체와, 상기 밸브체를 축선방향을 따라 선형이동가능하도록 수용하며 상기 밸브체에 의해 개폐가능한 냉매통과공을 갖는 밸브체하우징과, 상기 각 밸브체를 개폐구동하는 각각의 구동부와, 상기 각 구동부를 독립적으로 제어하는 제어부를 포함하며, 상기 구동부는 상기 밸브체를 자력에 의해 이동시키는 전기적 자력발생부인는 것을 특징으로 하는 냉각장치에 의해 달성된다.The object is, according to the present invention, in a cooling apparatus having a plurality of evaporators, a single compressor for compressing the refrigerant from the evaporators, and a condenser for condensing the refrigerant from the compressor, receiving refrigerant from the condenser. An inflow port, a respective outflow port toward each evaporator, a magnetic body formed by a magnetic body, each valve body for opening and closing a refrigerant flow between the inflow port and each outlet port, and the valve body can be linearly moved along an axial direction. A valve body housing having a refrigerant passage hole which can be opened and closed by the valve body, each driving unit for opening and closing the valve body, and a controller for independently controlling the driving units, wherein the driving unit is It is achieved by a cooling apparatus, characterized in that it is an electric magnetic force generating portion for moving the valve body by magnetic force.
상기 자력발생부는 상기 밸브체의 축선방향을 따라 배치되는 자력전달축과, 상기 자력전달축을 둘러싸는 솔레노이드코일로 이루어진 것이 효과적이다.It is effective that the magnetic force generating portion is composed of a magnetic force transmission shaft disposed along the axial direction of the valve body and a solenoid coil surrounding the magnetic force transmission shaft.
상기 밸브체하우징은 상기 밸브체와 상기 자력전달부사이에 배치되며 상기 냉매통과공을 갖는 밸브부재를 더 포함하며, 상기 냉매통과공은 상기 유입포트와 연통되는 축선방향 냉매유입공과, 상기 냉매유입공과 상기 유출포트를 연통시키는 직경방향의 유동공으로 이루어진 것이 바람직하다.The valve body housing further includes a valve member disposed between the valve body and the magnetic force transmission portion and having the refrigerant passage hole, wherein the refrigerant passage hole has an axial refrigerant inlet hole communicating with the inlet port, and the refrigerant inlet hole. It is preferable that the flow port of the radial direction for communicating the outlet port.
상기 밸브체의 이동방향을 따라 상기 밸브체하우징 외측에 배치되는 위치고정용 영구자석을 더 포함하는 것이 효과적이다.It is effective to further include a position fixing permanent magnet disposed outside the valve body housing along the moving direction of the valve body.
상기 제어부는, 상기 각 솔레노이드로의 전원공급을 단속하는 메인릴레이와;상기 각 솔레노이드와 상기 각 메인릴레이 사이에 설치되어 상기 솔레노이드로 공급되는 전류의 방향을 유지 또는 전환시키도록 상호 반대방향으로 병렬연결된 두 쌍의 정류소자와; 상기 메인릴레이에 의한 전원공급시 상기 각 정류소자중 일측의 정류소자로 전원을 공급하는 개폐스위치를 포함하는 한 쌍의 개폐릴레이와; 상기 각 쌍의 정류소자 중 어느 하나의 타측과 상기 솔레노이드사이에 각각 접속되어 소정 시간동안만 전류를 통과시키는 트라이액과 다이액을 갖는 트리거회로를 구비한 구동회로를 포함하는 것이 바람직하다.The control unit may include: a main relay for controlling power supply to each of the solenoids; installed between the solenoids and the main relays and connected in parallel in opposite directions to maintain or switch the direction of the current supplied to the solenoids; Two pairs of rectifier elements; A pair of opening and closing relays including an opening and closing switch for supplying power to one of the rectifying elements when the power is supplied by the main relay; It is preferable to include a driving circuit having a trigger circuit having a triac and a diac that are connected between the other side of any one of the pair of rectifying elements and the solenoid to pass a current only for a predetermined time.
이하에서는 첨부도면을 참조하여 본 발명에 대해 상세히 설명한다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.
도 1은 본 발명에 따른 냉각장치의 개략도이고, 도 2는 도 1의 냉각장치의 밸브의 측단면도이다. 도면에 도시된 바와 같이, 본 발명에 따른 냉각장치는 냉매를 고온고압으로 압축하는 압축기(13)와, 압축기(13)에서 압축된 고온고압의 기체상태의 냉매를 액체상태로 응축시키는 응축기(11)와, 응축기(11)를 거친 냉매를 감압시키는 모세관(14)과, 모세관(14)에서 감압된 냉매를 증발시키는 증발기(15a, 15b)로 구성되어 있다. 응축기(11)와 증발기(15a, 15b)사이에는 응축기(11)에서 응축된 냉매가 증발기(15)로 유입되는 유로를 독립적으로 개폐시키는 밸브(10)가 형성되어 있다.1 is a schematic view of a cooling apparatus according to the present invention, and FIG. 2 is a side cross-sectional view of a valve of the cooling apparatus of FIG. 1. As shown in the figure, the cooling apparatus according to the present invention is a compressor 13 for compressing a refrigerant at a high temperature and high pressure, and a condenser 11 for condensing the refrigerant in a gaseous state of the high temperature and high pressure compressed by the compressor 13 in a liquid state. ), A capillary tube 14 for depressurizing the refrigerant passing through the condenser 11, and evaporators 15a and 15b for evaporating the refrigerant depressurized in the capillary tube 14. A valve 10 is formed between the condenser 11 and the evaporators 15a and 15b to independently open and close a flow path through which the refrigerant condensed in the condenser 11 flows into the evaporator 15.
도 2에 도시된 바와 같이, 밸브를 구성하는 밸브케이싱(20)은 양단에 마련되어 전기적인 자력을 발생시키는 자력발생부와, 자력발생부의 자성에 의해 이동하여 냉매유출포트(25a, 25b)의 입구를 개폐하는 밸브체(23a, 23b)를 수용하는 밸브체하우징(27)으로 구성된다.As shown in FIG. 2, the valve casing 20 constituting the valve is provided at both ends of the magnetic force generating unit for generating an electric magnetic force, and moves by the magnetism of the magnetic force generating unit to inlet the refrigerant outlet ports 25a and 25b. It consists of a valve body housing 27 which accommodates the valve body 23a, 23b which opens and closes.
자력발생부는 밸브체의 축선방향을 따라 배치되는 자력전달축(24)과, 자력전달축(24)을 둘러싸는 솔레노이드코일(21a, 21b)로 구성되고, 밸브체(23a, 23b)는 자성을 띠는 자성체로 구성된다. 따라서, 솔레노이드코일(21a, 21b)에 일시적인 전류가 공급되면 자력이 발생되어 전류의 공급방향에 따라 밸브체(23a, 23b)가 이동된다.The magnetic force generating portion is composed of a magnetic force transmission shaft 24 disposed along the axial direction of the valve body, and solenoid coils 21a and 21b surrounding the magnetic force transmission shaft 24, and the valve bodies 23a and 23b are magnetic. The band consists of magnetic material. Accordingly, when a temporary current is supplied to the solenoid coils 21a and 21b, a magnetic force is generated to move the valve bodies 23a and 23b in accordance with the supply direction of the current.
밸브체하우징(27)의 내부에는 밸브체(23a, 23b)의 하부면과 접촉되어 밸브체의 이동경로를 안내하는 밸브체가이드(29)가 축선방향을 따라 형성되어 있고, 밸브체가이드(29)의 하부에는 단일의 냉매유입포트(22)의 입구로부터 축선방향을 따라냉매가 유동되도록 냉매유입공(16)이 마련되어 있다.In the valve body housing 27, a valve body guide 29 is formed along the axial direction in contact with the lower surfaces of the valve bodies 23a and 23b to guide the movement path of the valve body. The lower portion of the ()) is provided with a refrigerant inlet hole 16 so that the refrigerant flows along the axial direction from the inlet of the single refrigerant inlet port (22).
밸브체하우징(27)의 하부에는 냉매유입공(16)과 냉매유출포트(25a, 25b)를 직경방향으로 연통시키는 냉매유동공(18)이 마련되어 냉매유입공(16)을 통해 유입된 냉매가 냉매유동공(18)으로 낙하되어 냉매유출포트(25a)로 유출된다.The lower portion of the valve body housing 27 is provided with a refrigerant flow hole 18 for communicating the refrigerant inlet hole 16 and the refrigerant outlet ports 25a and 25b in a radial direction, so that the refrigerant introduced through the refrigerant inlet hole 16 is provided. It is dropped into the coolant flow hole 18 and flows out to the coolant outlet port 25a.
한편, 밸브체하우징(27)의 외측에는 밸브체(23a, 23b)의 이동방향을 따라 위치고정용 영구자석(17)이 부착되어, 솔레노이드코일(21a, 21b)에 의해 형성된 자력에 의해 이동된 밸브체(23a, 23b)의 위치를 고정시킨다.On the other hand, the permanent magnet 17 for fixing the position is attached to the outer side of the valve body housing 27 along the moving direction of the valve bodies 23a and 23b, and moved by the magnetic force formed by the solenoid coils 21a and 21b. The positions of the valve bodies 23a and 23b are fixed.
도 3은 도 1의 밸브의 구동회로도이고, 도 4(A)와 도4(B)는 도 1의 밸브의 제어신호도이다. 도면에 도시된 바와 같이, 밸브의 구동회로는 교류전원을 정류하기 위한 복수의 다이오드(33a, 33b)를 구비하며, 다이오드(33a, 33b)는 정, 역방향에 대하여 복수의 쌍으로 이루어져 있다. 그리고, 정, 역방향의 다이오드(33)의 스위칭을 위하여 다이오드는 각각 릴레이스위치에 접속되어 있으며, 릴레이스위치(31a, 31a′, 31b, 31b′)를 동작시키는 릴레이코일이 제어부(30)에 접속되어 제어를 받는다. 제어부(30)에는 압축기(13)를 구동시키는 도시 않은 압축기구동부가 접속되어 제어부(30)의 제어를 받는다.3 is a drive circuit diagram of the valve of FIG. 1, and FIGS. 4A and 4B are control signal diagrams of the valve of FIG. As shown in the figure, the driving circuit of the valve includes a plurality of diodes 33a and 33b for rectifying the AC power, and the diodes 33a and 33b are constituted by a plurality of pairs in the forward and reverse directions. In order to switch the diodes 33 in the forward and reverse directions, the diodes are connected to the relay switches, respectively, and the relay coils for operating the relay switches 31a, 31a ', 31b, and 31b' are connected to the controller 30. Under control. The control unit 30 is connected to a compressor driving unit (not shown) for driving the compressor 13 and is controlled by the control unit 30.
일측의 솔레노이드코일(21a)을 구동시키는 회로를 보면, 네 개의 다이오드가 정, 역방향으로 릴레이스위치(31a)의 일측단자에 접속되어 있다. 정방향의 한 쌍의 다이오드의 애노드가 제어부(30)의 A-1신호를 통과시키는 릴레이스위치(31a)의 타측단자에 접속되어 있고, 역방향의 한쌍의 다이오드는 각 캐소드가 A-2신호가 입력되는 릴레이스위치(31a′)의 일측단자에 접속되어 있다. 각 다이오드를 위에서부터 차례로 제1~4다이오드라 하면, 제1다이오드의 캐소드는 역방향의 제4다이오드의 애노드와 함께 밸브의 솔레노이드코일(21a)의 일측에 접속되어 있다. 제2다이오드의 캐소드는 역방향의 제3다이오드의 애노드와 함께 저항을 통하여 교류전원(32)의 타측단에 접속되어 있다.In the circuit for driving the solenoid coil 21a on one side, four diodes are connected to one terminal of the relay switch 31a in the forward and reverse directions. The anode of a pair of diodes in the forward direction is connected to the other terminal of the relay switch 31a through which the A-1 signal of the control unit 30 passes, and in the pair of diodes in the reverse direction, each cathode is input with the A-2 signal. It is connected to one terminal of the relay switch 31a '. When each diode is the first to fourth diodes in order from the top, the cathode of the first diode is connected to one side of the solenoid coil 21a of the valve together with the anode of the fourth diode in the reverse direction. The cathode of the second diode is connected to the other end of the AC power supply 32 through a resistor together with the anode of the third diode in the reverse direction.
한편, 교류전원(32)의 타측단(32)에는 저항, 커패시터, 저항 그리고, 다이액(34)의 일측단이 직렬로 접속되어 있으며, 다이액(34)의 타측단에는 트라이액(35)의 게이트에 접속되어 있다. 트라이액(35)의 교류전원(32)의 타측단은 바이스테이블밸브의 솔레노이드코일(21a)의 타측사이에 접속되어 있다.On the other hand, a resistor, a capacitor, a resistor, and one end of the die solution 34 are connected in series to the other end 32 of the AC power supply 32, and the triac 35 is connected to the other end of the die solution 34. It is connected to the gate of. The other end of the AC power supply 32 of the triac 35 is connected between the other side of the solenoid coil 21a of the vise table valve.
제어부(30)는 릴레이를 동작시키기 위해 도 4와 같은 복수의 절환신호를 출력하는데, 그 신호에 따라 릴레이코일이 동작하여 릴레이스위치(31a)가 정방향 다이오드 쪽으로 접속되면, 다이오드(31a)는 교류전원의 플러스반주기만을 통과시킨다. 그 중에서 제1다이오드를 통과한 교류전원의 플러스반주기는 바이스테이블밸브의 솔레노이드코일(21a)의 일측으로 인가된다. 그리고, 제2다이오드를 통과한 교류전원(32)의 플러스반주기는 커패시터, 저항 그리고 다이액(34)을 거쳐서 트라이액(35)의 게이트에 인가된다. 이에 따라서 트라이액(35)은 턴온되고 솔레노이드코일(21a)에는 전류가 흐르게 되어 솔레노이드코일(21a)에서는 자장이 발생하게 되어, 밸브체(23a)는 솔레노이드코일(21a)에서 발생된 자장의 힘을 받아 이동한다.The controller 30 outputs a plurality of switching signals as shown in FIG. 4 to operate the relay. When the relay coil operates according to the signal and the relay switch 31a is connected to the forward diode, the diode 31a is connected to an AC power source. Pass only plus and half cycle of. Among them, the positive half cycle of the AC power supply passing through the first diode is applied to one side of the solenoid coil 21a of the vise table valve. The positive half period of the AC power supply 32 passing through the second diode is applied to the gate of the triac 35 through a capacitor, a resistor, and a diac 34. Accordingly, the triac 35 is turned on and a current flows through the solenoid coil 21a, so that a magnetic field is generated in the solenoid coil 21a. Take it and move on.
즉, 솔레노이드코일(21a)에 대해 제어부(30)에서 A-1신호를 출력하면 도 3의 출력단 OUT-A(37a)로 정방향의 전원이 인가되어 바이스테이블밸브의 밸브체(23a)가 이동되어 도 2의 냉매유출포트(25a)를 개방하고, 제어부(30)에서 도3의 A-2신호를출력하면 출력단 OUT-A(37a)에서 역방향 전원이 인가되어 냉매유출포트(25a)를 폐쇄한다.That is, when the control unit 30 outputs the A-1 signal to the solenoid coil 21a, a positive power is applied to the output terminal OUT-A 37a of FIG. 3 to move the valve body 23a of the vise table valve. When the refrigerant outlet port 25a of FIG. 2 is opened and the control unit 30 outputs the A-2 signal of FIG. 3, reverse power is applied from the output terminal OUT-A 37a to close the refrigerant outlet port 25a. .
한편, 타측의 솔레노이드코일(21b)의 구동회로와 동작은 위에서 서술한 바와 동일하며, 제어부(30)에서 제공되는 도 4(B)의 출력신호에 의해 솔레노이드코일(21b)에 흐르는 전류의 방향이 전환되어, 도 2의 밸브체(23b)가 좌우로 이동된다.On the other hand, the driving circuit and operation of the solenoid coil 21b on the other side are the same as described above, and the direction of the current flowing through the solenoid coil 21b by the output signal of FIG. 4B provided by the controller 30 is changed. By switching, the valve body 23b of FIG. 2 is moved left and right.
이러한 구성에 의하여, 복수의 증발기의 냉매유로를 개폐하기 위한 솔레노이드코일와 솔레노이드코일의 자장에 의해 이동하는 밸브체 및 솔레노이드코일을 구동시키는 회로를 독립적으로 마련하여 각각의 냉매유로를 동시개폐 및 개별개폐가 가능한 냉각장치를 제공할 수 있다.With this configuration, the solenoid coil for opening and closing the refrigerant passages of the plurality of evaporators, the valve body moving by the magnetic field of the solenoid coil, and the circuit for driving the solenoid coil are independently provided to simultaneously open and close each refrigerant passage. Possible cooling devices can be provided.
이상 설명한 바와 같이, 본 발명에 따르면, 복수의 증발기의 냉매유로를 독립적으로 개폐가능한 밸브를 갖는 냉각장치가 제공된다.As described above, according to the present invention, there is provided a cooling apparatus having a valve capable of independently opening and closing a refrigerant passage of a plurality of evaporators.
Claims (6)
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2001-0000644A KR100381421B1 (en) | 2001-01-05 | 2001-01-05 | cooling system |
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| KR10-2001-0000644A KR100381421B1 (en) | 2001-01-05 | 2001-01-05 | cooling system |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR880000755A (en) * | 1986-05-14 | 1988-03-29 | 우시구보 도모아끼 | Chiller |
| KR890013436A (en) * | 1988-02-15 | 1989-09-23 | 이우에 사또시 | Freezer |
| KR19990004825A (en) * | 1997-06-30 | 1999-01-25 | 배순훈 | Parallel dual cooling system of the refrigerator |
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2001
- 2001-01-05 KR KR10-2001-0000644A patent/KR100381421B1/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR880000755A (en) * | 1986-05-14 | 1988-03-29 | 우시구보 도모아끼 | Chiller |
| KR890013436A (en) * | 1988-02-15 | 1989-09-23 | 이우에 사또시 | Freezer |
| KR19990004825A (en) * | 1997-06-30 | 1999-01-25 | 배순훈 | Parallel dual cooling system of the refrigerator |
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