KR20080033727A - Stepping valve setting method of kimchi refrigerator - Google Patents

Stepping valve setting method of kimchi refrigerator Download PDF

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KR20080033727A
KR20080033727A KR1020060099789A KR20060099789A KR20080033727A KR 20080033727 A KR20080033727 A KR 20080033727A KR 1020060099789 A KR1020060099789 A KR 1020060099789A KR 20060099789 A KR20060099789 A KR 20060099789A KR 20080033727 A KR20080033727 A KR 20080033727A
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stepping valve
storage
stepping
valve
priority
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KR100857563B1 (en
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이영근
김종률
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위니아만도 주식회사
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    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
    • A23B7/00—Preservation or chemical ripening of fruit or vegetables
    • A23B7/10—Preserving with acids; Acid fermentation
    • A23B7/105—Leaf vegetables, e.g. sauerkraut
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
    • A23B7/00—Preservation or chemical ripening of fruit or vegetables
    • A23B7/04—Freezing; Subsequent thawing; Cooling
    • 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
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Polymers & Plastics (AREA)
  • Food Science & Technology (AREA)
  • Zoology (AREA)
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  • General Chemical & Material Sciences (AREA)
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  • General Engineering & Computer Science (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Abstract

An installation method of a stepping valve of a kimchi refrigerator is provided to control the temperature of storage rooms by fixing the priority order according to a control temperature range and a temperature variation when connecting one stepping valve with two storage rooms. In a stepping valve having one side connected to a compressor and the other side connected to each of a plurality of storage rooms, which supplies and shuts the refrigerant supplied from the compressor to each storage room, an installation method of the stepping valve comprises the steps of: fixing the priority order according to a small control temperature range and a low temperature variation; and connecting a storage room having the highest priority and a storage room having the lowest priority to one stepping valve.

Description

김치냉장고의 스테핑 밸브 설치 방법{Stepping valve setting method of kimchi refrigerator}Stepping valve setting method of kimchi refrigerator}

도 1 은 본 발명의 실시예에 따른 김치냉장고의 스테핑 밸브 설치 상태를 나타낸 도면. 1 is a view showing a stepping valve installation state of the kimchi refrigerator according to an embodiment of the present invention.

<도면의 주요 부분에 대한 부호의 설명><Explanation of symbols for the main parts of the drawings>

10: 제1스테핑 밸브10: first stepping valve

20: 제2스테핑 밸브20: second stepping valve

30: 압축기30: compressor

R1,R2,R3,R4: 제1,2,3,4저장실R1, R2, R3, R4: 1st, 2nd, 3rd, 4th Storage Room

41,42,43,44: 제1,2,3,4증발기41,42,43,44: 1, 2, 3, 4 evaporators

본 발명은 김치냉장고에 관한 것으로서, 더욱 상세하게는 다수 개의 저장실 에 설치되는 증발기로 냉매를 공급 및 차단하는 김치냉장고의 스테핑 밸브 설치 방법에 관한 것이다. The present invention relates to a kimchi refrigerator, and more particularly, to a stepping valve installation method of the kimchi refrigerator to supply and shut off the refrigerant to the evaporator installed in a plurality of storage rooms.

일반 냉장고의 경우에는 문을 자주 열고 닫는 과정에서 냉장고 내부온도가 심하게 변화되고, 김치를 그릇에 담기 위해 냉장고 밖으로 김치통을 꺼내는 도중에 외부 공기와의 접촉에 의해서 김치의 보존 기간이 짧으며, 김치의 알맞은 숙성상태를 그대로 유지하기가 매우 어렵다. 이러한 점을 해결하기 위한 것으로서, 계절의 변화 및 사용자의 기호에 따라 김치를 적당히 숙성시킨 다음, 적정온도로 유지하여 잘 익은 김치의 맛을 오랫동안 보존할 수 있는 김치냉장고가 개발되었다.In the case of general refrigerators, the internal temperature of the refrigerator is severely changed during the frequent opening and closing of the door, and the preservation period of kimchi is shortened by contact with the outside air while taking out the kimchi container out of the refrigerator to put the kimchi in the bowl. It is very difficult to maintain proper maturation. In order to solve this problem, kimchi refrigerators have been developed that can ripen kimchi according to the change of seasons and user's preferences, and then maintain the proper temperature for a long time to preserve the taste of ripe kimchi.

일반적으로 김치냉장고는 김치에 열을 가하여 이를 적절하게 숙성 발효시키거나 또는 김치를 저온으로 냉각시켜 처음과 같이 생김치 상태로 장시간 보관하는 등 사용자의 기호에 맞게 발효, 저장하는 것이다. In general, kimchi refrigerators are fermented and stored according to the user's preference, such as by applying heat to kimchi to ripen and ferment it appropriately or by cooling the kimchi to a low temperature and storing it for a long time in the form of fresh kimchi as the first time.

이러한 김치냉장고의 내부에는 냉각장치와 가열장치를 구비되어 있어, 초기에는 빠른 시간 내에 저장실의 온도를 숙성온도로 높여 내부 저장실에 저장되어 있는 김치를 기호에 맞게 숙성시킨 다음, 보관온도로 낮추어 내부 저장실의 온도를 적정수준으로 유지함으로써, 김치의 맛과 신선도를 장기간 보존하는 것이 가능하게 한다.The inside of the Kimchi refrigerator is equipped with a cooling device and a heating device.In the early stage, the temperature of the storage room is increased to a ripening temperature within a short time, and then the kimchi stored in the internal storage room is aged according to a preference, and then the storage temperature is lowered to an internal storage room. By keeping the temperature at an appropriate level, it is possible to preserve the taste and freshness of kimchi for a long time.

한편, 최근에는 김치냉장고에 김치를 저장하는 저장실을 다수 개 설치하고 이들 저장실로 공급되는 냉매를 개폐할 수 있도록 다수 개의 스테핑 밸브를 설치하여 이 스테핑 밸브를 이용하여 냉매의 공급을 제어함으로써 저장실 온도를 제어하고 있다.On the other hand, recently, a plurality of storage rooms for storing kimchi are installed in the Kimchi refrigerator and a plurality of stepping valves are installed to open and close the refrigerant supplied to these storage rooms. I'm in control.

예를 들어, 압축기와 연결된 3방향 스테핑 밸브의 타단에 두 개의 증발기를 각각 설치하는 구조로 총 2개의 스테핑 밸브와 4개의 증발기가 연결될 수 있다. For example, a total of two stepping valves and four evaporators may be connected to each other by installing two evaporators at the other end of the three-way stepping valve connected to the compressor.

하지만, 상기한 바와 같이, 다수 개의 3방향 스테핑 밸브의 타단에 다수 개의 증발기가 연결되는 구조는 스테핑 밸브의 구조적 특성에 의해 일측 저장실이 오픈되는 단계를 거치게 되고, 이에 따라 타측 저장실에 냉매가 유입되어 저장실의 온도 편차가 발생하는 문제점이 있었다.However, as described above, a structure in which a plurality of evaporators are connected to the other ends of the plurality of three-way stepping valves is subjected to a step in which one storage compartment is opened due to the structural characteristics of the stepping valve, and thus refrigerant is introduced into the other storage compartment. There was a problem that a temperature deviation of the storage compartment occurs.

본 발명은 전술한 문제점을 개선하기 위해 창안된 것으로서, 저장실의 제어온도 대역폭과 온도 편차의 정도에 따라 우선순위를 설정하고 이 우선순위에 따라 우선순위가 가장 높은 저장실과 가장 낮은 저장실을 하나의 스테핑 밸브에 연결하도록 하여 스테핑 밸브의 오픈시 냉매 유입에 의한 온도편차가 발생하더라도 그 영향을 감소시킬 수 있도록 한 김치냉장고의 스테핑 밸브 설치 방법을 제공하는 데 그 목적이 있다.The present invention has been made to solve the above-mentioned problems, and sets the priority according to the control temperature bandwidth of the storage compartment and the degree of temperature deviation, and the stepping of the storage compartment having the highest priority and the lowest storage compartment according to this priority is one step. It is an object of the present invention to provide a stepping valve installation method of a kimchi refrigerator that can be connected to the valve to reduce the effect even if a temperature deviation caused by the refrigerant inflow when the stepping valve is opened.

전술한 목적을 달성하기 위해 창안된 본 발명의 구성은 다음과 같다. 본 발명의 김치냉장고의 스테핑 밸브 설치 방법은 일측이 압축기와 연결되고 타측이 2개의 저장실과 각각 연결되어 상기 압축기로부터 공급되는 냉매를 상기 각 저장실로 공급 및 차단하도록 개폐되는 3방향 스테핑밸브를 설치하는 김치냉장고의 스테핑밸 브 설치 방법에 있어서, 상기 저장실의 제어온도 대역폭이 비교적 좁고 온도 편차가 적은 우선순위에 따라 상기 우선순위가 가장 높은 저장실과 상기 우선순위가 가장 낮은 저장실을 하나의 스테핑밸브에 배정하여 연결하는 것을 특징으로 한다.The present invention devised to achieve the above object is as follows. Stepping valve installation method of the kimchi refrigerator of the present invention is one side is connected to the compressor and the other side is connected to each of the two storage compartments to install a three-way stepping valve that is opened and closed to supply and block the refrigerant supplied from the compressor to the respective storage compartments In the method of installing a stepping valve of a Kimchi refrigerator, the storage chamber having the highest priority and the storage chamber having the lowest priority are assigned to one stepping valve according to a priority of the control chamber having a relatively narrow control temperature bandwidth and a small temperature deviation. It is characterized by the connection.

상기 저장실은 상기 우선순위의 높은 순위와 낮은 순위 순서대로 하나씩 상기 스테핑밸브에 각각 연결하는 것을 특징으로 한다.The storage chambers are connected to the stepping valves one by one in the order of high priority and low priority.

이하에서는 본 발명의 실시예를 첨부된 도면을 참조하여 상세하게 설명한다. Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 1 은 본 발명의 실시예에 따른 김치냉장고의 스테핑 밸브 설치 상태를 나타낸 도면이다. 1 is a view showing a stepping valve installation state of the kimchi refrigerator according to an embodiment of the present invention.

본 발명의 실시예에 따른 김치냉장고는 도 1 에 도시된 바와 같이, 압축기(30)와 연결된 냉매관이 분기되어 제1스테핑밸브(10)와 제2스테핑밸브(20)에 연결되고, 제1스테핑밸브(10)는 제1저장실(R1)에 설치되는 제1증발기(41)와 제2저장실(R2)에 설치되는 제2증발기(42)에 연결되며, 제2스테핑밸브(20)는 제3저장실(R3)에 설치되는 제3증발기(43)와 제4저장실(R4)에 설치되는 제4증발기(44)에 연결된다. Kimchi refrigerator according to an embodiment of the present invention, as shown in Figure 1, the refrigerant pipe connected to the compressor 30 is branched is connected to the first stepping valve 10 and the second stepping valve 20, the first The stepping valve 10 is connected to the first evaporator 41 installed in the first storage chamber R1 and the second evaporator 42 installed in the second storage chamber R2, and the second stepping valve 20 is It is connected to the third evaporator 43 installed in the third storage chamber R3 and the fourth evaporator 44 installed in the fourth storage chamber R4.

이에 따라, 제1스테핑밸브(10)와 제2스테핑밸브(20)는 각 저장실(R1,R2,R3,R4)의 기동조건에 따른 마이컴(미도시)의 제어신호에 응답하여 압축기(30)로부터 공급되는 냉매를 각 저장실(R1,R2,R3,R4)로 공급 또는 차단한다.Accordingly, the first stepping valve 10 and the second stepping valve 20 respond to the control signal of the microcomputer (not shown) according to the starting conditions of the storage chambers R1, R2, R3, and R4. Refrigerant supplied from the supply or cut off to each storage chamber (R1, R2, R3, R4).

특히, 상기한 각 저장실(R1,R2,R3,R4)은 우선순위가 설정되는 데, 우선순위는 제어온도 대역폭이 좁은 순위와 온도 편차가 적게 제어되는 것이 필요한 순위로 설정된다. In particular, each of the storage chambers R1, R2, R3, and R4 described above has a priority set, and the priority is set to a priority in which the control temperature bandwidth is narrow and the temperature deviation is controlled to be small.

아울러, 이러한 우선순위가 설정되면, 우선순위가 가장 높은 저장실과 가장 낮은 저장실을 하나의 스테핑 밸브에 연결하고, 그 다음 우선순위의 저장실을 하나의 스테핑밸브에 연결하는 방식으로 스테핑밸브에 배정하여 연결한다. In addition, if these priorities are set, the highest priority and lowest storage compartments are connected to one stepping valve, and the next priority storage compartment is connected to one stepping valve and assigned to the stepping valve. do.

본 발명의 실시예에서는 제1,3,4,2저장실(R1,R3,R4,R2)의 순서대로 우선순위가 설정되면, 제1저장실(R1)과 제4저장실(R2)이 제1스테핑밸브(10)에 연결되고, 제2저장실(R3)과 제3저장실(R4)이 제2스테핑밸브(20)에 연결된다. In the exemplary embodiment of the present invention, when the priority is set in the order of the first, third, fourth, and second storage rooms R1, R3, R4, and R2, the first storage room R1 and the fourth storage room R2 are first stepped. The second storage chamber R3 and the third storage chamber R4 are connected to the second stepping valve 20.

참고로, 저장실이 6개이고, 순서대로 우선순위가 설정되는 경우에는 제1,6저장실에 하나의 스테핑밸브에 연결되고, 제2,5저장실이 하나의 스테핑밸브에 연결되고, 제3,4저장실이 하나의 스테핑밸브에 연결된다. For reference, when there are six storage chambers and the priority is set in order, the storage chambers are connected to one stepping valve in the first and sixth storage chambers, and the storage chambers of second and fifth are connected to one stepping valve, and the third and fourth storage chambers are connected. It is connected to this one stepping valve.

한편, 본 실시예와 같이, 제1,2저장실(R1,R2)이 제1스테핑밸브(10)에 연결되고, 제3,4저장실(R3,R4)이 제2스테핑배브(20)에 연결되는 것을 예시로 하여 본 발명의 실시예에 따른 김치냉장고의 동작과정을 설명한다.Meanwhile, as in this embodiment, the first and second storage chambers R1 and R2 are connected to the first stepping valve 10, and the third and fourth storage chambers R3 and R4 are connected to the second stepping valve 20. By way of example, the operation of the kimchi refrigerator according to an embodiment of the present invention will be described.

먼저, 다수 개의 스테핑밸브를 구비한 김치냉장고에서 여러 개의 저장실이 모두 기동 조건에 만족하면, 모든 저장실을 번갈아가면서 하나씩 냉매를 공급하므로, 냉매가 공급되는 저장실을 제외한 나머지 저장실은 클로즈시킨다. First, in a kimchi refrigerator having a plurality of stepping valves, if all of the storage chambers satisfy the starting conditions, all of the storage chambers are alternately supplied one by one, so that the remaining chambers except the storage chamber to which the refrigerant is supplied are closed.

아울러, 제1스테핑밸브(10)와 제2스테핑밸브(20)를 구비한 김치냉장고에 있어서, 제1스테핑밸브(10)는 제1,2저장실(R1,R2) 클로즈(이하 '제1단계'라 함), 제1저장실(R1) 오픈 제2저장실(R2) 클로즈(이하 '제2단계'라 함), 제1,2저장실(R1,R2) 오픈(이하, '제3단계'라 함), 및 제1저장실(R1) 클로즈 제2저장실(R2) 오픈(이하 '제4단계'라 함)하는 단계 거치게 된다.In addition, in the Kimchi refrigerator having the first stepping valve 10 and the second stepping valve 20, the first stepping valve 10 is closed the first and second storage chamber (R1, R2) (hereinafter 'first step) '1), opening of the first storage room (R1), closing of the second storage room (R2) (hereinafter referred to as' second stage'), opening of the first and second storage rooms (R1, R2) (hereinafter referred to as' third stage ') And the first storage chamber R1 closed to open the second storage chamber R2 (hereinafter referred to as 'fourth stage').

또한, 제2스테핑밸브(20)는 제3,4저장실(R3,R4) 클로즈(이하 '제5단계'라 함), 제3저장실(R3) 오픈 제4저장실(R4) 클로즈(이하 '제6단계'라 함), 제3,4저장실(R3,R4) 오픈(이하 '제7단계'라 함), 및 제3저장실(R3) 클로즈 제4저장실(R4) 오픈(이하 '제8단계'라 함)하는 단계를 거치게 된다. In addition, the second stepping valve 20 is closed in the third and fourth storage chambers R3 and R4 (hereinafter referred to as 'the fifth step'), and the third storage chamber R3 is opened and the fourth storage chamber R4 is closed (hereinafter referred to as 'the third step'). Step 6), open the 3rd and 4th storage room (R3, R4) (hereinafter referred to as '7th step'), and close the 3rd storage room (R3), open the 4th storage room (R4) (hereinafter referred to as '8th step' ').

예를 들어, 제2저장실(R2)의 기동조건이 만족하면, 제1스테핑밸브(10)는 상기한 제4단계를 수행하고, 제2스테핑밸브(20)는 제5단계를 수행한다.For example, when the starting condition of the second storage chamber R2 is satisfied, the first stepping valve 10 performs the above-described fourth step, and the second stepping valve 20 performs the fifth step.

이 후, 제2,4저장실(R2,R4)의 기동조건이 모두 만족하면, 제2저장실(R2)과 제4저장실(R4)이 교번하여 기동하게 되는데, 제2스테핑밸브(20)는 제5단계에서 제8단계를 순차적으로 수행하고, 제1스테핑밸브(10)는 4단계에서 제1단계를 순차적으로 수행한다.Thereafter, when the starting conditions of the second and fourth storage chambers R2 and R4 are satisfied, the second storage chamber R2 and the fourth storage chamber R4 are alternately started, and the second stepping valve 20 is In step 5, the eighth step is sequentially performed, and the first stepping valve 10 sequentially performs the first step in the fourth step.

이러한 제1,2스테핑밸브(10,20)의 동작단계에서 일정한 시간이 경과하면, 제1스테핑밸브(10)는 제1단계에서 제4단계를 순차적으로 수행하고, 제2스테핑밸브(20)는 제8단계에서 제5단계를 순차적으로 수행한다.When a predetermined time has elapsed in the operation steps of the first and second stepping valves 10 and 20, the first stepping valve 10 sequentially performs the fourth step to the first step, and the second stepping valve 20. Performs the fifth step sequentially from the eighth step.

따라서, 제2,4저장실(R2,R4)의 기동조건이 모두 해제될 때까지 제1,2스테핑밸브(10,20)는 상기한 과정을 반복적으로 수행하게 된다.Accordingly, the first and second stepping valves 10 and 20 repeatedly perform the above process until the starting conditions of the second and fourth storage chambers R2 and R4 are released.

이러한 교번동작을 수행하는 경우, 제1단계에서 제4단계, 또는 제5단계에서 제8단계를 수행할 때, 스테핑밸브의 구조적 특징에 의해 스테핑밸브의 일측이 오픈되는 단계인 제2,3단계 및 제6,7단계를 거치게 된다. In the case of performing such an alternating operation, when performing the fourth step to the first step or the fifth step to the eighth step, the second and third steps, in which one side of the stepping valve is opened by the structural feature of the stepping valve, are performed. And sixth and seventh steps.

상기한 바와 같이 저장실을 기 설정된 우선순위로 배정하여 스테핑밸브와 연결하면, 우선순위가 높은 즉, 제어온도 대역폭이 좁고 온도편차가 적게 제어되는 것이 필요한 제1저장실(R1)이 비교적 많은 제어과정을 거치게 되더라도 제2저장실(R2)의 우선순위가 낮으므로 결국, 냉매가 유입되어 저장실의 온도가 변화하더라도 그 온도변화에 따른 영향이 작아지게 된다. As described above, when the storage chamber is assigned to the preset priority and connected to the stepping valve, the first storage chamber R1 having a high priority, that is, the control temperature bandwidth is narrow and the temperature deviation is controlled to be relatively low, is controlled. Even if it passes through, since the priority of the second storage chamber (R2) is low, even if the refrigerant is introduced to change the temperature of the storage chamber, the effect of the temperature change is reduced.

따라서, 스테핑밸브의 구조적 문제에 따른 저장실의 온도편차를 해결할 수 있다. Therefore, it is possible to solve the temperature deviation of the storage chamber due to the structural problem of the stepping valve.

본 발명은 전술한 실시예에 국한되지 않고 본 발명의 기술사상이 허용하는 범위 내에서 다양하게 변형하여 실시할 수 있다.The present invention is not limited to the above-described embodiments and can be carried out in various modifications within the scope of the technical idea of the present invention.

이와 같이 구성되는 본 발명에 따르면, 저장실의 제어온도 대역폭과 온도 편차의 정도에 따라 우선순위를 설정하고 이 우선순위에 따라 우선순위가 가장 높은 저장실과 가장 낮은 저장실을 하나의 스테핑 밸브에 연결하도록 하여 스테핑 밸브의 오픈시 냉매 유입에 의한 온도편차가 발생하더라도 그 영향을 감소시킬 수 있다.According to the present invention configured as described above, the priority is set according to the control temperature bandwidth and the degree of temperature deviation of the storage compartment, and the highest and lowest storage compartments are connected to one stepping valve according to the priority. Even if a temperature deviation occurs due to refrigerant inflow when the stepping valve is opened, its effect can be reduced.

Claims (2)

일측이 압축기와 연결되고 타측이 다수 개의 저장실과 각각 연결되어 상기 압축기로부터 공급되는 냉매를 상기 각 저장실로 공급 및 차단하도록 개폐되는 스테핑밸브를 설치하는 김치냉장고의 스테핑밸브 설치 방법에 있어서, In the method of installing a stepping valve of the Kimchi refrigerator, one side is connected to the compressor and the other side is connected to each of the plurality of storage compartments and the stepping valve is opened and closed to supply and block the refrigerant supplied from the compressor to the respective storage compartments, 상기 저장실의 제어온도 대역폭이 비교적 좁고 온도 편차가 적은 우선순위에 따라 상기 우선순위가 가장 높은 저장실과 상기 우선순위가 가장 낮은 저장실을 하나의 스테핑밸브에 배정하여 연결하는 것을 특징으로 하는 김치냉장고의 스테핑밸브 설치 방법.Stepping of the kimchi refrigerator characterized in that the storage chamber having the highest control temperature bandwidth and the temperature deviation is relatively small, the storage chamber having the highest priority and the storage chamber having the lowest priority are assigned to one stepping valve. How to install the valve. 제 1 항에 있어서, 상기 저장실은 상기 우선순위의 높은 순위와 낮은 순위 순서대로 하나씩 상기 스테핑밸브에 각각 연결하는 것을 특징으로 하는 김치냉장고의 스테핑밸브 설치 방법.The method of claim 1, wherein the storage chamber is connected to the stepping valves one by one in order of high priority and low priority of the kimchi refrigerator.
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