KR100237067B1 - A coolant amount control device of a refrigerator and a method for circulation coolant - Google Patents

A coolant amount control device of a refrigerator and a method for circulation coolant Download PDF

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KR100237067B1
KR100237067B1 KR1019970062490A KR19970062490A KR100237067B1 KR 100237067 B1 KR100237067 B1 KR 100237067B1 KR 1019970062490 A KR1019970062490 A KR 1019970062490A KR 19970062490 A KR19970062490 A KR 19970062490A KR 100237067 B1 KR100237067 B1 KR 100237067B1
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South Korea
Prior art keywords
refrigerant
refrigerator
damper
condenser
distribution duct
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KR1019970062490A
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Korean (ko)
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KR19990041831A (en
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박양수
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전주범
대우전자주식회사
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Priority to KR1019970062490A priority Critical patent/KR100237067B1/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
    • 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
    • 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
    • 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
    • F25B41/42—Arrangements for diverging or converging flows, e.g. branch lines or junctions
    • 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
    • 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
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/02—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating liquids, e.g. brine
    • 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
    • F25B2600/05—Refrigerant levels
    • 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
    • F25B2600/2507—Flow-diverting valves

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Abstract

본 발명은 냉장고의 냉매량 조절장치에 관한 것으로, 냉매가스를 고온고압으로 압축시켜 주는 콤프레서와, 이러한 콤프레서로 부터 토출된 냉매가스를 방열시켜 액화냉매로 변화시키는 콘덴서와, 이러한 콘덴서를 거치면서 액화된 냉매의 압력을 강하시켜 후술되는 증발기로 냉매가 고온고압의 상태로 유입되는 것을 방지하는 두 개의 캐필라리튜브와, 이 캐필라리튜브를 선택적으로 통과한 냉매가 기화되면서 주변공기와 열교환되어 주변공기를 냉각시키면서 냉기를 생성하도록 캐필라리튜브에 각각 연결된 증발기로 구성되어 냉매가 각 장치들을 순환하도록 된 냉각장치에서, 이러한 콘덴서와 두 개의 캐필라리튜브 사이의 냉매파이프에 냉매의 진행방향을 전환시키면서 냉매의 순환량을 조절가능한 분배기를 설치한 냉장고의 냉매량 조절장치에 관한 것이다.The present invention relates to a refrigerant amount control device of a refrigerator, comprising: a compressor for compressing a refrigerant gas at high temperature and high pressure, a condenser for dissipating the refrigerant gas discharged from the compressor into a liquefied refrigerant, and liquefied through such a condenser. Two capillary tubes that reduce the pressure of the refrigerant to prevent the refrigerant from flowing into the state of high temperature and high pressure by the evaporator described later, and the refrigerant passing through the capillary tube selectively vaporizes and exchanges heat with the surrounding air In a cooling device configured to each of the evaporator is connected to the capillary tube to cool the air while cooling the air so that the refrigerant circulates each device, the refrigerant pipe between the condenser and the two capillary tube is directed In the refrigerator amount control device of the refrigerator equipped with a distributor which can control the circulation amount of the refrigerant while switching It is about.

Description

냉장고의 냉매량 조절장치Refrigerator amount control device

본 발명은 냉장고의 냉매량 조절장치에 관한 것으로, 보다 상세하게는 하나의 냉각싸이클을 이용하여 냉장고의 냉동실 혹은 냉장실을 선택하여 개별적으로 쾌속냉각시킬 수 있도록 한 냉장고의 냉매량 조절장치에 관한 것이다.The present invention relates to a refrigerant amount control device for a refrigerator, and more particularly, to a refrigerant amount control device for a refrigerator to select a freezing compartment or a refrigerating compartment of a refrigerator by using a single cooling cycle for rapid cooling individually.

일반적으로, 냉장고의 냉각싸이클은 냉동실 배면에 설치된 냉각기실에 위치한 증발기를 통해 주변 공기와 열 교환된 고온의 냉매가스가 기계실에 위치한 콤프레서로 보내져 압축되고, 콤프레서를 통해 고온고압으로 기체화된 냉매는 콘덴서를 거치면서 응축열을 외부로 방열시키면서 액화되며, 이러한 콘덴서를 거친 액화냉매는 드라이어와 캐필러리튜브를 통과하면서 불순물과 수분 등이 제거된 상태로 냉동실 후측에 형성된 냉각기실 내의 증발기로 보내져 냉각기실의 주변 공기와 열 교환되는 증발잠열에 의해 기화되면서 저온저압으로 변화되는 냉매순환이 반복되고 있다.In general, the cooling cycle of the refrigerator is sent to the compressor located in the machine room by the high temperature refrigerant gas heat exchanged with the surrounding air through the evaporator located in the back of the freezer compartment, the refrigerant gasified at high temperature and high pressure through the compressor The condensation heat is liquefied while radiating the condensation heat to the outside while passing through the condenser, and the liquefied refrigerant passed through the condenser is sent to the evaporator in the cooler chamber formed at the rear of the freezing chamber with impurities and moisture removed while passing through the dryer and capillary tube. The refrigerant circulation is changed to low temperature and low pressure while being vaporized by the latent evaporative heat exchanged with the surrounding air of the gas.

이렇게 하여 생성된 냉기는 냉동실 또는 냉장실의 해당 고내의 냉각조건에 부합하도록 각각 공급되어 수납물품을 냉각시키고 있는 바, 특히 냉동실을 집중적으로 냉각시키기 위하여 도 1과 같은 냉각싸이클이 제공되어 사용되고 있다.The cold air thus produced is supplied to meet the cooling conditions of the freezer compartment or the refrigerating compartment, respectively, to cool the stored articles. In particular, the cooling cycle as shown in FIG. 1 is used to intensively cool the freezer compartment.

도면에 도시된 바와 같이, 기존과 동일한 싸이클상에 냉매의 방향을 전환시킬 수 있는 마그네틱 밸브(예컨데, 삼방밸브로서 솔레노이드밸브를 말함)(30)를 채용하고 냉동실 및 냉장실의 각 전용 증발기(50)(60)를 설치하여 콤프레서(10)로부터 공급된 냉매가 콘덴서(20)에서 방열되면서 액화된 후 마그네틱 밸브(30)를 거쳐 각각의 캐필라리튜브(40a)(40b)를 지나 상기 냉동실용증발기(60) 또는 냉장실용증발기(50)를 선택적으로 순환되어 냉기를 생성할 수 있도록 하고 있다.As shown in the figure, a magnetic valve (for example, a solenoid valve as a three-way valve) that can change the direction of the refrigerant on the same cycle as the conventional one is adopted, and each dedicated evaporator 50 of the freezer compartment and the refrigerating compartment 50. 60 is installed and the refrigerant supplied from the compressor 10 is liquefied while being radiated in the condenser 20, and then through each of the capillary tubes 40a and 40b through the magnetic valve 30, the evaporator for the freezer compartment. 60 or the refrigerating chamber evaporator 50 is selectively circulated to generate cold air.

따라서, 냉동실용증발기(60) 혹은 냉장실용증발기(50)의 증발성능을 조절하여 해당 고내에 적합한 냉각조건을 이루도록 하고 있다.Therefore, the evaporation performance of the freezer compartment evaporator 60 or the refrigerator compartment evaporator 50 is controlled to achieve a suitable cooling condition in the chamber.

그러나, 상술한 바와 같이 일반적인 냉각싸이클을 갖는 냉장고의 경우에는 냉동실 혹은 냉장실중 어느 한 곳의 냉각성능을 향상시킬 수 없다는 단점이 있고, 이를 극복하기 위하여 제안된 냉동실의 냉각효율을 상대적으로 강화시키도록 마그네틱밸브가 채용된 냉장고의 경우에는 이러한 마그네틱 밸브가 단순히 냉매의 진행 혹은 순환되는 방향만을 전환시켜 주기 때문에 냉매의 순환되는 양을 조절할 수 가 없어 냉각성능의 업/ 다운을 조절할 수 없다는 문제가 내재되어 있었다.However, in the case of the refrigerator having a general cooling cycle as described above, there is a disadvantage in that the cooling performance of either the freezing compartment or the refrigerating compartment cannot be improved, and to overcome this, the cooling efficiency of the proposed freezer compartment is relatively enhanced. In the case of a refrigerator employing a magnetic valve, since the magnetic valve simply changes the direction in which the refrigerant flows or circulates, it is not possible to control the amount of refrigerant circulated, and thus there is a problem in that the cooling performance can not be controlled. there was.

또한, 이와 같이 내재된 문제를 극복할 수 있는 대안으로 제시되는 두 개의 콤프레서를 이용하여 냉동실 혹은 냉장실의 냉각싸이클을 개별적으로 각각 제어토록 하는 방안이 제안되고는 있으나, 이러한 경우에는 각각 별도로 채용된 두 개의 콤프레서와 두 개의 증발기 및 이를 연결하여주는 다소 복잡한 냉매파이프의 배관 등으로 인하여 부품의 설치비가 증가하여 설비비가 고가이고 냉동싸이클을 구성하기가 매우 복잡하여 설치가 어렵다는 문제를 안고 있다.In addition, a method of individually controlling the cooling cycle of the freezer compartment or the refrigerating compartment using two compressors proposed as an alternative to overcome the inherent problems is proposed, but in this case, two separately adopted Due to the two compressors and two evaporators and piping of a rather complicated refrigerant pipe connecting them, the installation cost of parts increases, so the installation cost is high and the refrigeration cycle is very complicated, which makes installation difficult.

본 발명은 상기한 종래기술의 제반 문제점을 해결하기 위하여 창출된 것으로서, 하나의 냉매량 조절장치인 분배기와 두 개의 증발기를 설치하여 콤프레서로 부터 고온고압으로 토출된 냉매의 순환양을 조절하여 냉동실의 냉각성능을 강화시키거나 혹은 냉장실의 냉각성능을 강화시킬 수 있도록 한 냉장고의 냉매량 조절장치를 제공하기 위한 것이다.The present invention was created to solve the above problems of the prior art, by installing a distributor and two evaporators, one refrigerant amount control device to adjust the circulation amount of the refrigerant discharged from the compressor at high temperature and high pressure to cool the freezer compartment. It is to provide a refrigerant amount control device of the refrigerator to enhance the performance or to enhance the cooling performance of the refrigerator compartment.

도 1은 종래 냉각싸이클을 도시한 블럭도,1 is a block diagram showing a conventional cooling cycle,

도 2는 본 발명에 따른 냉각싸이클을 도시한 블럭도,2 is a block diagram showing a cooling cycle according to the present invention,

도 3a는 본 발명에 따른 분배기의 한 실시예를 나타낸 작동상태도,Figure 3a is an operating state diagram showing an embodiment of the dispenser according to the present invention,

도 3b는 본 발명에 따른 분배기의 한 실시예를 나타낸 다른 작동상태도,Figure 3b is another operating state showing one embodiment of the dispenser according to the present invention,

도 3c는 본 발명에 따른 분배기의 한 실시예를 나타낸 또 다른 작동상태도,Figure 3c is another operating state showing one embodiment of the dispenser according to the present invention,

도 4a는 본 발명에 따른 분배기의 다른 실시예를 도시한 작동상태도,Figure 4a is an operating state diagram showing another embodiment of the dispenser according to the present invention,

도 4b는 본 발명에 따른 분배기의 다른 실시예를 도시한 다른 작동상태도,Figure 4b is another operating state showing another embodiment of the dispenser according to the present invention,

도 4c는 본 발명에 따른 분배기의 다른 실시예를 도시한 또 다른 작동상태도.Figure 4c is yet another operating state showing another embodiment of the dispenser according to the present invention.

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

10..... 콤프레서, 20..... 콘덴서,10 ..... compressor, 20 ..... condenser,

40a, 40b..... 캐필라리튜브, 50..... 냉장실측증발기,40a, 40b ..... capillary tube, 50 ..... cold storage evaporator,

60..... 냉동실측증발기, 88..... 댐퍼,60 ..... Freezer Evaporator, 88 ..... Damper,

90..... 분배기, 92..... 흡입구,90 ..... distributor, 92 ..... inlet,

94a..... 냉동실측토출구, 94b..... 냉장실측토출구,94a ..... freezer outlet, 94b ..... freezer outlet

96..... 냉매유로, 98a..... 냉동실측보조토출구,96 ... Refrigerant flow path, 98a .....

98b..... 냉장실측보조토출구, 99..... 분배덕트.98b ..... Refrigeration chamber side outlet, 99 ..... distribution duct.

본 발명에 따른 냉장고의 냉매량 조절장치의 특징은, 냉매가스를 고온고압으로 압축시켜 주는 콤프레서와, 상기 콤프레서로 부터 토출된 냉매가스를 방열시켜 액화냉매로 변화시키는 콘덴서와, 상기 콘덴서를 거치면서 액화된 냉매의 압력을 강하시키는 두 개의 캐필라리튜브와, 상기 캐필라리튜브를 선택적으로 통과한 냉매가 기화되면서 주변공기를 냉각시키도록 상기 캐필라리튜브에 각각 연결된 증발기로 구성되어 냉매가 각 장치들을 순환하도록 된 냉각장치에서, 상기 콘덴서와 상기 두 개의 캐필라리튜브 사이에 냉매의 진행방향을 전환시키면서 냉매의 순환량을 조절가능한 분배기를 를 제공하게 된다.Features of the refrigerant amount control device of the refrigerator according to the present invention, a compressor for compressing the refrigerant gas at high temperature and high pressure, a condenser for dissipating the refrigerant gas discharged from the compressor to liquefied refrigerant, and liquefied through the condenser Two capillary tubes for lowering the pressure of the refrigerant, and an evaporator connected to the capillary tubes to cool the surrounding air while the refrigerant selectively passing through the capillary tubes is vaporized. In the cooling device configured to circulate the devices, it is possible to provide a distributor which can adjust the circulation amount of the refrigerant while changing the direction of the refrigerant flow between the condenser and the two capillary tubes.

이하에서는, 본 발명 냉장고의 냉매량 조절장치 및 냉매순환방법의 바람직한 여러 실시예를 첨부한 도면을 참조하여 보다 상세하게 설명한다.Hereinafter, with reference to the accompanying drawings, preferred embodiments of the refrigerant amount control apparatus and the refrigerant circulation method of the present invention will be described in more detail.

도 2는 본 발명에 따른 냉각싸이클을 도시한 블록도로서, 종래 냉각싸이클의 구성요소인 콘덴서(20)와 두 개의 캐필라리튜브(40a)(40b) 사이의 냉매파이프상에 두방향으로 냉매의 진행을 선택적으로 변환가능하면서 또한, 냉매의 순환량을 조절가능한 분배기(90)를 설치하여서 된다.Figure 2 is a block diagram showing a cooling cycle according to the present invention, a refrigerant in two directions on the refrigerant pipe between the condenser 20 and the two capillary tubes (40a, 40b) which are components of a conventional cooling cycle It is possible to provide a distributor 90 which is capable of selectively converting the advancing and adjusting the circulation amount of the refrigerant.

상기 분배기(90)는 전자적인 제어에 의한 것이 아니고, 기계적인 수단에 의해 냉매의 진행방향을 제어토록 된 것인 바, 예컨데 그 구동수단으로서 도면에는 도시하지 않았으나 일정한 각도의 범위 내에서 반복적으로 회동이 가능한 스텝모터를 채용한 것이다.The distributor 90 is not by electronic control but by mechanical means to control the direction of movement of the coolant. For example, the driving means is not repeatedly shown in the drawing but repeatedly rotated within a range of angles. This step motor is adopted.

도 3a는 본 발명에 따른 분배기(90)의 한 실시예를 나타낸 작동상태도이고, 도 3b는 본 발명에 따른 분배기(90)의 한 실시예를 나타낸 다른 작동상태도이며, 도 3c는 본 발명에 따른 분배기(90)의 한 실시예를 나타낸 또 다른 작동상태도로서, 상기 분배기(90)는 하나의 냉매 흡입구(92)와, 두 개의 냉매 토출구(94a)(94b)를 갖는 분배덕트(99)와, 상기 분배덕트(99) 내부에 설치되며 상기 토출구(94a)(94b)를 선택적으로 개폐가능한 댐퍼(88)와, 상기 댐퍼(88)를 일정한 각도의 범위 내에서 회동되도록 하여 주는 구동수단인 스텝모터(도시생략)로 구성된다.Figure 3a is an operating state diagram showing one embodiment of the dispenser 90 according to the present invention, Figure 3b is another operating state diagram showing an embodiment of the dispenser 90 according to the present invention, Figure 3c is in accordance with the present invention As another operation state diagram showing an embodiment of the distributor 90, the distributor 90 includes a distribution duct 99 having one refrigerant inlet 92 and two refrigerant outlets 94a and 94b; A step motor, which is installed inside the distribution duct 99 and selectively opens and closes the discharge holes 94a and 94b, and a driving means for rotating the damper 88 within a range of a predetermined angle. (Not shown).

또한, 도면에는 도시되어 있지 않으나, 냉장고의 본체 전면 소정위치에는 다수의 선택스위치를 구비하여 냉동실집중냉각, 냉장실집중냉각 또는 냉동실 및 냉장실 동시 냉각기능 등을 수행할 수 있도록 하며, 이러한 기능이 선택되면 그 제어신호가 냉장고의 마이크로프로세서(이하"제어부"라함)로 송출되어 상기 제어부가 이 제어신호에 의해 상기 스텝모터를 세팅된 각도 만큼씩 시계방향인 정방향과 반시계방향인 역방향으로 회동시켜 댐퍼(88)의 회동각을 제어토록 한다.In addition, although not shown in the drawing, a predetermined number of select switches are provided at a predetermined position in front of the main body of the refrigerator to perform freezer concentration cooling, refrigerating compartment concentration cooling, or simultaneous freezer and refrigerator compartment cooling functions. The control signal is sent to a microprocessor of the refrigerator (hereinafter referred to as a "control unit"), and the control unit rotates the step motor by the control signal in the clockwise direction and the counterclockwise direction by the set angle, thereby providing a damper ( Control the angle of rotation of 88).

상기 분배덕트(99)는 원형으로 형성되는 것이 바람직하며, 구(球)형 또는 반원형도 무방할 것이다.The distribution duct 99 is preferably formed in a circular shape, and may be spherical or semicircular.

그리고, 상기 댐퍼(88)는 원호의 일부가 절단된 두께를 가진 원판형상으로 형성됨이 바람직하며, 상기 분배덕트(99)의 형상에 대응되게 다양하게 변형이 가능하다.In addition, the damper 88 is preferably formed in a disk shape having a thickness of a portion of the arc is cut, it can be variously modified to correspond to the shape of the distribution duct (99).

뿐만 아니라, 상기 댐퍼(88)는 분배덕트(99) 내부에서 회동이 가능토록 하기 위하여 상기 분배덕트(99)의 직경보다는 다소 작게 형성되며, 상기 댐퍼(88) 절단면의 반대방향으로 그 중심축이 편심되게 형성하되, 상기 편심된 중심축은 상기 분배덕트(99)의 중심축에 일치되도록 설치한다.In addition, the damper 88 is formed to be somewhat smaller than the diameter of the distribution duct 99 in order to enable the rotation in the distribution duct 99, the central axis of the damper 88 in the opposite direction to the cutting plane It is formed eccentrically, the eccentric central axis is installed to match the central axis of the distribution duct (99).

또한, 상기 댐퍼(88)는 상기 분배덕트(99)의 흡입구(92)와 연통되어 상기 원호의 일부가 절단된 부위로 냉매가 토출될 수 있도록 상기 댐퍼(88)의 중심에는 냉매유로(96)가 형성된다.In addition, the damper 88 is in communication with the suction port 92 of the distribution duct 99 so that the refrigerant can be discharged to the portion of the circular arc cut off the refrigerant passage 96 in the center of the damper 88 Is formed.

도 4a는 본 발명에 따른 분배기(90)의 다른 실시예를 도시한 작동상태도이고, 도 4b는 본 발명에 따른 분배기(90)의 다른 실시예를 도시한 다른 작동상태도이며, 도 4c는 본 발명에 따른 분배기(90)의 다른 실시예를 도시한 또 다른 작동상태도로서, 상기 분배덕트(99)의 냉동실측토출구(94a)와 냉장실측토출구(94b) 외에 별도의 보조토출구(98a)(98b)를 형성한 것이다.Figure 4a is an operating state diagram showing another embodiment of the dispenser 90 according to the present invention, Figure 4b is another operating state diagram showing another embodiment of the dispenser 90 according to the present invention, Figure 4c Another operating state diagram showing another embodiment of the dispenser 90 according to the present invention, in addition to the freezer compartment side outlet 94a and the refrigerating compartment side outlet 94b of the distribution duct 99, separate auxiliary outlets 98a and 98b. It is formed.

즉, 도면을 통해 알 수 있듯이, 냉동실측증발기(60)와 연결된 상기 냉동실측토출구(94a)의 인접위치에 냉장실측보조토출구(98b)를 냉장실측증발기(50)와 연통되도록 설치하며, 상기 냉장실측증발기(50)와 연결된 상기 냉장실측토출구(94b)의 인접위치에는 냉동실측보조토출구(98a)를 상기 냉동실측증발기(60)와 연통되도록 설치한다.That is, as can be seen through the drawing, the refrigerator compartment side auxiliary discharge port (98b) is installed in communication with the refrigerating chamber side evaporator (50b) in the adjacent position of the freezer compartment side discharge port (94a) connected to the freezer compartment evaporator (60), A freezing compartment side auxiliary discharge outlet 98a is installed in communication with the freezer compartment evaporator 60 at an adjacent position of the refrigerating compartment side discharge port 94b connected to the actual evaporator 50.

그리고, 그 외의 장치들은 상술한 두 개의 토출구(94a)(94b)만을 갖는 분배기(90)와 동일하게 형성된다.The other devices are formed in the same manner as the distributor 90 having only the two discharge ports 94a and 94b described above.

이러한 구성으로 이루어진 본 발명의 냉매량 조절장치는, 사용자가 원하는 선택스위치를 선택하게 되면 그에 해당하는 분배기의 반응이 냉장고의 제어부의 제어신호에 따라 동작하게 된다.In the refrigerant amount adjusting apparatus of the present invention having such a configuration, when a user selects a desired selection switch, the response of the distributor corresponding thereto is operated according to the control signal of the controller of the refrigerator.

즉, 콤프레서, 콘덴서, 캐필라리튜브, 증발기를 순차적으로 거친 후에 다시 콤프레서로 진행되도록 한 냉매순환방법에 있어서, 상기 콘덴서를 통과한 냉매는 분배기를 거치면서 냉동실측토출구와 냉장실측토출구 중 선택된 어느 하나의 토출구를 통하여 해당 증발기를 집중순환토록 한 후에 재차 콤프레서로 귀환되는 순환을 반복하게 된다.That is, in the refrigerant circulating method in which the compressor, the condenser, the capillary tube, and the evaporator are sequentially passed and then proceeded to the compressor again, the refrigerant passing through the condenser passes through a distributor, and any one selected from the freezer compartment outlet and the refrigerating compartment outlet is selected. After the evaporator is concentrated through one discharge port, the circulation to be returned to the compressor is repeated.

예컨데, 사용자가 냉동실강화기능을 선택하게 되면, 스텝모터의 소정각도 정방향으로 회동되어 냉동실측토출구(94a)만을 개방하고 냉장실측토출구(94b)는 폐쇄하게 된다.For example, when the user selects the freezer reinforcing function, a predetermined angle of the step motor is rotated in the forward direction to open only the freezer compartment side outlet 94a and the refrigerating compartment side outlet 94b.

따라서, 캐필라리튜브(40a)를 거쳐 압력이 강하된 냉매는 냉동실측증발기(60)를 거치면서 냉기를 생성하게 된다. 이때, 스텝모터의 회동각도를 초기에 다양하게 세팅하게 되면 증발기로 토출되는 냉매의 양을 기계적으로 정량조절이 가능하게 된다.Therefore, the refrigerant having a pressure drop through the capillary tube 40a generates cold air while passing through the freezing chamber evaporator 60. At this time, if the rotation angle of the step motor is initially set in various ways, it is possible to quantitatively control the amount of refrigerant discharged to the evaporator.

또한, 본 발명의 다른 실시예와 같이, 냉동실측토출구(94a)만을 개방하고 냉장실측토출구(94b)를 폐쇄하게 되면 자동적으로 냉동실측토출구(94a) 인접위치에 형성된 냉장실측보조토출구(98b)도 동시에 개방됨으로서 순환냉매의 대부분은 상기 냉동실측토출구(94a)를 거쳐 냉동실측증발기(60)로 흡입되어 냉기를 생성하고, 상대적으로 소량의 냉매가 상기 냉장실측보조토출구(98b)를 거쳐 냉장실측증발기(50)로 흡입되어 냉기를 생성하게 된다.In addition, as in another embodiment of the present invention, when only the freezer compartment discharge port 94a is opened and the refrigerating compartment side discharge port 94b is automatically closed, the refrigerating compartment side auxiliary discharge port 98b formed at a position adjacent to the freezer compartment discharge port 94a is also present. By opening at the same time, most of the circulating refrigerant is sucked into the freezer compartment evaporator 60 via the freezer compartment discharge port 94a to generate cold air, and a relatively small amount of refrigerant is passed through the refrigerating compartment side auxiliary discharge outlet 98b. Inhaled at 50 will produce cold air.

따라서, 상술한 경우에는 냉동실 및 냉장실 모두에서 냉기의 생성이 가능하게 된다.Therefore, in the above-described case, it is possible to generate cold air in both the freezing compartment and the refrigerating compartment.

반면, 냉장실측증발기(50) 만을 동작하여 냉장실에 냉기를 생성, 공급하도록 하는 경우에는 상술한 설명과 정반대로 동작하도록 냉장고의 제어부에서 송출된 제어신호를 따라 스텝모터가 반시계방향으로 역회전되면서 일어나게 되므로 이하 생략하기로 한다.On the other hand, in the case of operating only the refrigerating chamber evaporator 50 to generate and supply cold air to the refrigerating chamber, the step motor is rotated counterclockwise according to the control signal sent from the control unit of the refrigerator to operate in the opposite manner to the above description. This will be omitted below.

상술한 설명은 본 발명에 따라 선호된 실시예를 기술한 것에 불과하며, 본 발명의 요지를 변경하지 않는 범위 내에서라면 다양한 변형예가 있을 수 있을 것이다.The foregoing description merely describes preferred embodiments in accordance with the present invention, and various modifications may be made without departing from the scope of the present invention.

이상에서 설명한 바와 같이 본 발명에 따라 냉장고의 냉매량 조절장치를 제공함으로써, 사용자가 냉장고에 수납하는 물품의 종류에 따라 냉동실 혹은 냉장실을 사용자가 원하는 정도의 냉각조건으로 냉각시켜 보관할 수 있게 하여 주는 효과가 있다. 나아가서, 냉동실의 냉각성능을 강화시키면서 동시에 냉장실을 냉각시킬 수도 있으며, 아울러, 냉장실의 냉각성능을 강화시키면서 동시에 냉동실을 냉각시킬 수도 있는 효과도 제공하게 된다. 또한, 하나의 분배기로 두 개의 증발기를 동시 제어가능하며 복잡한 회로도로 구성된 전자식이 아닌 간단한 구조의 기계적인 수단에 의해 냉매의 분배제어가 가능함으로서 냉장고의 생산단가를 절감시키는 효과도 아울러 제공하게 된다.As described above, by providing the amount of refrigerant control unit of the refrigerator according to the present invention, the effect of allowing the user to cool and store the freezer compartment or the refrigerating compartment according to the type of the goods to be stored in the refrigerator to the desired cooling conditions. have. Furthermore, the refrigerating compartment may be cooled at the same time while enhancing the cooling performance of the freezer compartment. In addition, the refrigerating compartment may be cooled at the same time while enhancing the refrigerating compartment. In addition, it is possible to simultaneously control two evaporators with one distributor and to control the distribution of the refrigerant by a mechanical means having a simple structure rather than an electronic circuit composed of complicated circuit diagrams, thereby providing an effect of reducing the production cost of the refrigerator.

Claims (6)

냉매가스를 고온고압으로 압축시켜 주는 콤프레서(10)와, 상기 콤프레서(10)로 부터 토출된 냉매가스를 방열시켜 액화냉매로 변화시키는 콘덴서(20)와, 상기 콘덴서(20)를 거치면서 액화된 냉매의 압력을 강하시키는 두 개의 캐필라리튜브(40a)(40b)와, 상기 캐필라리튜브(40a)(40b)를 선택적으로 통과한 냉매가 기화되면서 주변공기를 냉각시키도록 상기 캐필라리튜브(40a)(40b)에 각각 연결된 증발기(50)(60)로 구성되어 냉매가 각 장치들을 순환되도록 설치된 냉각장치에 있어서,A compressor 10 for compressing the refrigerant gas at high temperature and high pressure, a condenser 20 for dissipating the refrigerant gas discharged from the compressor 10 into a liquefied refrigerant, and liquefied through the condenser 20 Two capillary tubes 40a and 40b for lowering the pressure of the refrigerant, and the refrigerant passing through the capillary tubes 40a and 40b selectively vaporizes the capillary tube to cool the surrounding air. In the cooling device consisting of the evaporator 50, 60 connected to each of the tubes (40a, 40b) installed so that the refrigerant circulates each device, 상기 콘덴서(20)와 상기 캐필라리튜브(40a)(40b) 사이에 냉매의 진행방향을 전환시키면서 냉매의 순환량을 조절가능한 분배기(90)가 추가로 설치되는 것을 특징으로 하는 냉장고의 냉매량 조절장치.Refrigerant amount control device of the refrigerator, characterized in that the distributor 20 is further provided between the condenser 20 and the capillary tube (40a, 40b) to change the direction of the refrigerant to adjust the circulation amount of the refrigerant . 제 1 항에 있어서, 상기 분배기(90)는 하나의 흡입구(92)와 두 개의 토출구(94a)(94b)를 갖는 분배덕트(99)와, 상기 분배덕트(99) 내부에 설치되며 상기 토출구(94a)(94b)를 선택적으로 개폐가능한 댐퍼(88)와, 상기 댐퍼(88)를 일정한 각도의 범위 내에서 회동되도록 하여 주는 구동수단으로 구성되는 것을 특징으로 하는 냉장고의 냉매량 조절장치.The dispenser (90) according to claim 1, wherein the distributor (90) has a distribution duct (99) having one suction port (92) and two discharge ports (94a, 94b), and is installed inside the distribution duct (99). And a damper (88) capable of selectively opening and closing the opening (94a) (94b) and driving means for causing the damper (88) to be rotated within a range of a predetermined angle. 제 2 항에 있어서, 상기 분배덕트(99)는 상기 두 개의 토출구(94a)(94b)외에 별도로 보조토출구(98a)(98b)가 추가로 설치되는 것을 특징으로 하는 냉장고의 냉매량 조절장치.The apparatus of claim 2, wherein the distribution duct (99) is further provided with an auxiliary discharge port (98a) (98b) in addition to the two discharge ports (94a) (94b). 제 2 항에 있어서, 상기 댐퍼(88)는 원호의 일부가 절단된 두께를 가진 원판형인 것을 특징으로 하는 냉장고의 냉매량 조절장치.The apparatus of claim 2, wherein the damper (88) has a disc shape having a thickness in which a portion of the arc is cut. 제 4 항에 있어서, 상기 댐퍼(88)는 상기 분배덕트(99)의 중심과 일치되도록 그 중심이 편심되게 형성되는 것을 특징으로 하는 냉장고의 냉매량 조절장치.The apparatus of claim 4, wherein the damper (88) is eccentrically formed so as to coincide with the center of the distribution duct (99). 제 4 항에 있어서, 상기 댐퍼(88)는 상기 분배덕트(99)의 흡입구(92)와 연통되어 상기 원호의 일부가 절단된 부위로 냉매가 토출되도록 그 중심에 냉매유로(96)가 형성되는 것을 특징으로 하는 냉장고의 냉매량 조절장치.5. The damper (88) according to claim 4, wherein the damper (88) is in communication with the suction port (92) of the distribution duct (99) so that a refrigerant passage (96) is formed at a center thereof so that the refrigerant is discharged to a portion where a portion of the arc is cut. Refrigerant amount control device of the refrigerator, characterized in that.
KR1019970062490A 1997-11-24 1997-11-24 A coolant amount control device of a refrigerator and a method for circulation coolant KR100237067B1 (en)

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