KR100359832B1 - device for decreasing load of vacuum refrigerator - Google Patents

device for decreasing load of vacuum refrigerator Download PDF

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Publication number
KR100359832B1
KR100359832B1 KR1020000073776A KR20000073776A KR100359832B1 KR 100359832 B1 KR100359832 B1 KR 100359832B1 KR 1020000073776 A KR1020000073776 A KR 1020000073776A KR 20000073776 A KR20000073776 A KR 20000073776A KR 100359832 B1 KR100359832 B1 KR 100359832B1
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South Korea
Prior art keywords
vacuum
vacuum pump
chamber
air inlet
food
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KR1020000073776A
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Korean (ko)
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KR20020044400A (en
Inventor
박진구
서상호
김양규
곽태희
정의엽
김세영
황인영
박준형
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엘지전자 주식회사
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
    • F25D11/02—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B37/00—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00
    • F04B37/10—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use
    • F04B37/14—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use to obtain high vacuum
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/02—Check valves with guided rigid valve members
    • F16K15/021—Check valves with guided rigid valve members the valve member being a movable body around which the medium flows when the valve is open
    • 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
    • F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/04—Treating air flowing to refrigeration compartments
    • F25D2317/043—Treating air flowing to refrigeration compartments by creating a vacuum in a storage compartment

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)

Abstract

본 발명은 공기중의 산소에 의해 보관중인 식품이 산화되지 못하도록 식품보관실내의 공기를 배기시켜 식품보관실을 진공상태로 유지시킴과 함께, 기기가 원활하게 동작되도록 하는데 그 목적이 있다.The present invention aims to keep the food storage chamber in a vacuum state by exhausting the air in the food storage chamber so that food stored in the air is not oxidized by oxygen in the air, and to operate the apparatus smoothly.

이를 위해, 본 발명은 식품을 냉장 또는 냉동 보관하도록 냉기유로 상에 냉장실과 냉동실이 구비된 것에 있어서, 상기 냉기유로 상에 구비되고 상기 식품을 넣을 수 있도록 공간부가 형성된 진공챔버와, 상기 진공챔버내의 공기를 외부로 배기시켜 진공챔버내의 진공도를 일정하게 유지시키는 진공펌프와, 상기 진공펌프의 가동 초기 또는 가동이 중지된 후 재가동 초기, 진공펌프의 구동부하를 저감시키는 부하저감수단이 포함되어 이루어진 진공 냉장고를 제공한다.To this end, the present invention is a refrigerator chamber and a freezing chamber provided on the cold air flow path to store or refrigerated food, the vacuum chamber is provided on the cold air flow path and formed with a space to put the food, and in the vacuum chamber A vacuum pump including a vacuum pump for exhausting air to the outside to maintain a constant degree of vacuum in the vacuum chamber, and a load reduction means for reducing the driving load of the vacuum pump at the beginning of the operation of the vacuum pump or restarting after the operation is stopped. Provide a refrigerator.

Description

진공 냉장고의 부하저감장치{device for decreasing load of vacuum refrigerator}Device for reducing load of vacuum refrigerator

본 발명은 진공 냉장고에 관한 것으로서, 더욱 상세하게는 공기중의 산소에 의해 보관중인 식품이 산화되지 못하도록 식품보관실내의 공기를 배기시켜 식품보관실을 진공상태로 유지시킴과 함께, 기기가 원활하게 동작되도록 한 것이다.The present invention relates to a vacuum refrigerator, and more particularly, to exhaust the air in the food storage chamber so that the food stored by the oxygen in the air is not oxidized, and keeps the food storage chamber in a vacuum state, and the device operates smoothly. It was made possible.

종래의 냉장고는 통상 냉동실과 냉장실로 구획하여 냉동실의 배면에 설치된 팬의 구동으로 증발기에서 차가워진 냉기를 냉동실과 냉장실로 불어줌으로써 저온상태에서 식품을 보존하도록 되어 있으나, 저온상태에서도 공기중의 산소로 인하여 보관식품의 산화가 촉진되므로 인해 보관중인 식품을 장기 저장할 수 없게 되는 문제점이 있었다.Conventional refrigerators are generally divided into a freezer compartment and a refrigerating compartment to store food in a low temperature state by blowing cold air cooled in an evaporator into a freezer compartment and a refrigerating compartment by driving a fan installed at the back of the freezer compartment. Due to the oxidation of the stored food is promoted there was a problem that can not be stored for a long time due to the food being stored.

본 발명은 종래기술에 대한 문제점을 해결하기 위한 것으로서, 공기중의 산소에 의해 보관중인 식품이 산화되지 못하도록 식품보관실내의 공기를 배기시켜 식품보관실을 진공상태로 유지시킴과 함께, 기기가 원활하게 동작되도록 하는데 그 목적이 있다.The present invention is to solve the problems of the prior art, and to keep the food storage chamber in a vacuum state by exhausting the air in the food storage chamber to prevent oxidation of the food stored by the oxygen in the air, the device smoothly Its purpose is to make it work.

도 1은 본 발명에 따른 진공냉장고의 외형을 나타낸 사시도.1 is a perspective view showing the appearance of a vacuum refrigerator according to the present invention.

도 2는 본 발명에 따른 진공냉장고 및 부하저감장치를 나타낸 단면도.2 is a cross-sectional view showing a vacuum refrigerator and a load reducing device according to the present invention.

도 3은 본 발명에 따른 요부 상세도.3 is a detailed view of the main part according to the present invention.

도면의 주요부분에 대한 부호의 설명Explanation of symbols for main parts of the drawings

1: 냉기유로 10: 냉장실1: cold flow path 10: cold storage room

20: 냉동실 30: 진공챔버20: freezing chamber 30: vacuum chamber

40: 진공펌프 41: 연결호스40: vacuum pump 41: connection hose

51: 외기유입호스 52: 외기유입밸브51: fresh air inlet hose 52: fresh air inlet valve

53: 마이콤 60: 역류차단밸브53: micom 60: back flow check valve

상기 목적을 달성하기 위해서, 본 발명은 식품을 냉장 또는 냉동 보관하도록 냉기유로 상에 냉장실과 냉동실이 구비된 것에 있어서, 상기 냉기유로 상에 구비되고 상기 식품을 넣을 수 있도록 공간부가 형성된 진공챔버와, 상기 진공챔버내의 공기를 외부로 배기시켜 진공챔버내의 진공도를 일정하게 유지시키는 진공펌프와, 상기 진공펌프의 가동 초기 또는 가동이 중지된 후 재가동 초기, 진공펌프의 구동부하를 저감시키는 부하저감수단이 포함되어 이루어진 진공 냉장고를 제공한다.In order to achieve the above object, the present invention provides a refrigerator compartment and a freezing compartment on the cold air flow path to refrigerated or frozen food, comprising: a vacuum chamber provided on the cold air flow path and formed with a space to accommodate the food; A vacuum pump for exhausting the air in the vacuum chamber to the outside to maintain a constant vacuum degree in the vacuum chamber, and a load reduction means for reducing the driving load of the vacuum pump at the beginning of the operation or restarting after the operation of the vacuum pump is stopped Provided is a vacuum refrigerator comprising.

상기 내용을 더 상세하게 설명하기 위해 도면을 참조하면 다음과 같다.Referring to the drawings to describe the above content in more detail as follows.

도 1은 본 발명에 따른 진공냉장고의 외형을 나타낸 사시도이고, 도 2는 본 발명에 따른 진공냉장고 및 부하저감장치를 나타낸 단면도이며, 도 3은 본 발명에따른 요부 상세도이다.1 is a perspective view showing the appearance of a vacuum refrigerator according to the present invention, Figure 2 is a cross-sectional view showing a vacuum refrigerator and a load reducing device according to the present invention, Figure 3 is a detailed view of the main part according to the present invention.

본 발명에 따른 진공냉장고는, 도 1과 도 2에 도시된 바와 같이, 식품을 냉장 또는 냉동 보관하도록 냉기유로(1) 상에 냉장실(10)과 냉동실(20)이 구비된 것에 있어서, 상기 냉기유로 상에 구비되고 상기 식품을 넣을 수 있도록 공간부가 형성된 진공챔버(30)와, 상기 진공챔버내의 공기를 외부로 배기시켜 진공챔버내의 진공도를 일정하게 유지시키는 진공펌프(40)와, 상기 진공펌프의 가동 초기 또는 가동이 중지된 후 재가동 초기, 진공펌프의 구동부하를 저감시키는 부하저감수단이 포함되어 이루어진다.1 and 2, in the vacuum refrigerator according to the present invention, the refrigerator compartment 10 and the freezer compartment 20 are provided on the cold air flow path 1 so as to store or refrigerated food, the cold air A vacuum chamber 30 provided on the flow path and provided with a space to accommodate the food, a vacuum pump 40 for exhausting air in the vacuum chamber to the outside to maintain a constant degree of vacuum in the vacuum chamber, and the vacuum pump It includes a load reducing means for reducing the drive load of the vacuum pump, the initial operation of the start or restart after the operation is stopped.

이 때, 상기 진공챔버는 도 1과 도 2에 도시된 바와 같이 상기 냉장실(10) 내에 구비되되, 상기 냉장실의 내측벽과 일체로 형성되거나, 상기 냉장실의 내측벽과 착탈가능하게 구비될 수 있다. 또한, 도시도지 않았지만 상기 냉장실(10) 전체가 진공챔버(30)일 수 있고, 상기 냉동실(20)과 상기 냉장실(10)을 포함하는 상기 냉기유로(1) 전체가 진공챔버(30)일 수 있다.At this time, the vacuum chamber is provided in the refrigerating chamber 10, as shown in Figure 1 and 2, may be formed integrally with the inner wall of the refrigerating chamber, or may be detachably provided with the inner wall of the refrigerating chamber. . In addition, although not shown, the entire refrigerating chamber 10 may be a vacuum chamber 30, and the entire cold air flow path 1 including the freezing chamber 20 and the refrigerating chamber 10 may be a vacuum chamber 30. have.

그리고, 상기 부하저감수단은, 도 2와 도 3에 도시된 바와 같이, 상기 진공챔버(30)와 상기 진공펌프(40)를 상호 연결시키는 연결호스(41)상에 일단이 연통되게 구비되고 타단이 외부와 연통되는 외기유입호스(51)와, 상기 외기유입호스에 구비되어 외기유입호스를 개폐시키는 외기유입밸브(52)와, 상기 진공펌프의 가동 초기 또는 가동이 정지된 후 재가동 초기 상기 외기유입밸브를 열어주고 소정시간이 지나면 상기 외기유입밸브를 닫아주는 마이콤(53)이 포함되어 이루어짐이 바람직하다.And, the load reducing means, as shown in Figure 2 and 3, one end is provided in communication with the other end on the connection hose 41 for interconnecting the vacuum chamber 30 and the vacuum pump 40 and the other end The outside air inlet hose 51 communicating with the outside, the outside air inlet valve 52 provided in the outside air inlet hose to open and close the outside air inlet hose, and the initial air restart after the operation of the vacuum pump is started or stopped. It is preferable to include a microcomputer 53 for opening the inlet valve and closing the external air inlet valve after a predetermined time has elapsed.

한편, 본 발명에 따른 진공 냉장고는, 도 2와 도 3에 도시된 바와 같이 상기 진공챔버(30)와 외기유입호스(51) 사이의 연결호스(41)에 구비되어 상기 진공펌프(40)의 가동중단시 외부공기가 상기 진공챔버내로 역류되지 못하도록 한 역류차단밸브(60)가 더 포함되어 이루어짐이 바람직하다.On the other hand, the vacuum refrigerator according to the present invention, as shown in Figure 2 and 3 is provided in the connection hose 41 between the vacuum chamber 30 and the outside air inlet hose 51 of the vacuum pump 40 It is preferable that the back flow blocking valve 60 is further included to prevent external air from flowing back into the vacuum chamber when the operation is stopped.

이 때, 상기 역류차단밸브(60)로는 압력차에 의해 기계적으로 개폐되는 체크밸브를 사용할 수 있다.At this time, the check valve 60 may be a check valve that is mechanically opened and closed by the pressure difference.

상기와 같이 이루어진 본 발명은 다음과 같은 동작을 수행한다.The present invention made as described above performs the following operation.

먼저, 진공펌프(40) 가동 초기 마이콤(53)에 의해 외기유입밸브(52)가 열리게 되어 외부공기가 진공펌프로 유입되면서 진공펌프가 가동되기 시작한다. 소정시간이 지나 진공펌프(40)의 가동이 원활해지면 마이콤(53)에 의해 외기유입밸브(52)는 닫히게된다. 이 후, 진공펌프(40)의 펌핑력에 의해 진공챔버(30)와 진공펌프간의 압력차가 발생됨에 따라 체크밸브(60)의 밸브체(61)가 압력이 상대적으로 낮은 진공펌프(40)측으로 이동되면서 체트밸브는 열리게 되고, 진공챔버내의 공기는 진공펌프로 이동되어 외부로 토출된다.First, the external air inlet valve 52 is opened by the initial microcomputer 53 operating the vacuum pump 40, and the external air is introduced into the vacuum pump to start the vacuum pump. When the operation of the vacuum pump 40 becomes smooth after a predetermined time, the outside air inlet valve 52 is closed by the microcomputer 53. Thereafter, as the pressure difference between the vacuum chamber 30 and the vacuum pump is generated by the pumping force of the vacuum pump 40, the valve body 61 of the check valve 60 moves toward the vacuum pump 40 having a relatively low pressure. As the check valve is opened, air in the vacuum chamber is moved to the vacuum pump and discharged to the outside.

그리고, 진공챔버(30)내의 진공도가 일정하게 유지되면 진공펌프(40)의 구동은 정지되는데, 이때 진공챔버측의 압력이 진공펌프측의 압력보다 상대적으로 낮기 때문에 체크밸브(60)의 밸브체(61)가 진공챔버(30)측으로 이동되면서 체크밸브는 닫히게 된다. 이에 따라 진공챔버내로 외부공기의 유입이 차단되어 진공챔버는 진공상태를 유지하게 되므로 식품을 장기간 보관할 수 있게 된다.When the degree of vacuum in the vacuum chamber 30 is kept constant, the driving of the vacuum pump 40 is stopped. At this time, since the pressure on the vacuum chamber side is relatively lower than the pressure on the vacuum pump side, the valve element of the check valve 60 is stopped. As the 61 is moved to the vacuum chamber 30 side, the check valve is closed. Accordingly, the inflow of external air into the vacuum chamber is blocked, so that the vacuum chamber maintains a vacuum state so that food can be stored for a long time.

또한, 진공펌프(40)의 가동이 중지된 후 재가동 초기에도 상기와 같이 마이콤(53)에 의해 외기유입밸브(52)가 열리게 된다. 이 후, 진공펌프(40)의 가동이 원활해지면 마이콤에 의해 외기유입밸브(52)는 닫히고, 진공펌프의 펌핑력에 의해 체크밸브(60)가 열리면서 진공챔버(30)내의 공기를 배기시키게 된다.In addition, the external air inlet valve 52 is opened by the microcomputer 53 as described above even after the operation of the vacuum pump 40 is stopped. After that, when the operation of the vacuum pump 40 becomes smooth, the external air inlet valve 52 is closed by the microcomputer, and the check valve 60 is opened by the pumping force of the vacuum pump to exhaust the air in the vacuum chamber 30. .

결국, 진공펌프(40)가 원활하게 구동된 후 진공챔버(30)내의 공기를 배기시킴에 따라, 진공펌프에 과부하게 걸리지 않게 되어 진공펌프의 수명을 연장시킬 수 있고, 이와 함께 진공펌프 및 체크밸브(60)에 의해 진공챔버내의 진공도가 유지됨에 따라, 식품을 장기간 보관할 수 있게 된다.As a result, as the vacuum pump 40 is smoothly driven and the air in the vacuum chamber 30 is exhausted, the vacuum pump is not overloaded so that the life of the vacuum pump can be extended, and the vacuum pump and the check can be extended. As the degree of vacuum in the vacuum chamber is maintained by the valve 60, food can be stored for a long time.

이제까지 본 발명에 대하여 그 바람직한 실시예를 중심으로 살펴보았으며, 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자는 본 발명의 본질적 기술 범위 내에서 상기 본 발명의 상세한 설명과 다른 형태의 실시예들을 구현할 수 있을 것이다. 여기서 본 발명의 본질적 기술 범위는 특허청구범위에 나타나 있다.So far, the present invention has been described with reference to the preferred embodiments, and those skilled in the art to which the present invention pertains to the detailed description of the present invention and other forms of embodiments within the essential technical scope of the present invention. Could be implemented. Herein the essential technical scope of the present invention is shown in the claims.

이상에서와 같이 본 발명은 식품을 보관하는 진공챔버내의 공기를 배기시켜 진공상태를 유지시킴에 따라, 공기중의 산소에 의해 보관중인 식품이 산화되는 것을 미연에 방지할 수 있어 식품을 장기간 보관할 수 있다.As described above, the present invention maintains a vacuum state by evacuating the air in the vacuum chamber for storing the food, thereby preventing the oxidation of the food stored by the oxygen in the air, which can be stored for a long time. have.

이와 함께, 진공펌프의 구동 초기 압력차에 의해 발생되는 진공펌프의 과부하를 막을 수 있어, 진공펌프의 수명을 연장시킬 수 있고, 기기의 신뢰성을 향상시킬 수 있다.In addition, it is possible to prevent the overload of the vacuum pump generated by the initial pressure difference of the driving of the vacuum pump, to prolong the life of the vacuum pump, and to improve the reliability of the apparatus.

Claims (4)

식품을 냉장 또는 냉동 보관하도록 냉기유로 상에 냉장실과 냉동실이 구비된 것에 있어서,In the refrigerator compartment and the freezer compartment are provided on the cold air flow path for refrigeration or freezing of food, 상기 냉기유로 상에 구비되고 상기 식품을 넣을 수 있도록 공간부가 형성된 진공챔버와,A vacuum chamber provided on the cold air flow path and formed with a space to accommodate the food; 상기 진공챔버내의 공기를 외부로 배기시켜 진공챔버내의 진공도를 일정하게 유지시키는 진공펌프와,A vacuum pump which exhausts air in the vacuum chamber to the outside to maintain a constant degree of vacuum in the vacuum chamber; 상기 진공펌프의 가동 초기 또는 가동이 중지된 후 재가동 초기, 진공펌프의 구동부하를 저감시키는 부하저감수단이 포함되어 이루어짐을 특징으로 하는 진공 냉장고.And a load reduction means for reducing the driving load of the vacuum pump at the beginning of the operation of the vacuum pump or after the operation of the vacuum pump is stopped. 제 1 항에 있어서,The method of claim 1, 상기 부하저감수단은;The load reduction means is; 상기 진공챔버와 상기 진공펌프를 상호 연결시키는 연결호스상에 일단이 연통되게 구비되고 타단이 외부와 연통되는 외기유입호스와,An air inlet hose having one end connected to the vacuum hose and a connection hose connecting the vacuum pump and the other end communicating with the outside; 상기 외기유입호스에 구비되어 외기유입호스를 개폐시키는 외기유입밸브와,An external air inlet valve provided in the external air inlet hose to open and close the external air inlet hose; 상기 진공펌프의 가동 초기 또는 가동이 정지된 후 재가동 초기 상기 외기유입밸브를 열어주고, 소정시간이 지나면 상기 외기유입밸브를 닫아주는 마이콤이 포함되어 이루어짐을 특징으로 하는 진공 냉장고.And a microcomputer for opening the external air inlet valve and closing the external air inlet valve after a predetermined time, after the initial operation of the vacuum pump or after the operation is stopped. 제 2 항에 있어서,The method of claim 2, 상기 진공챔버와 외기유입호스 사이의 연결호스에 구비되어 상기 진공펌프의 가동중단시 외부공기가 상기 진공챔버내로 역류되지 못하도록 한 역류차단밸브가 더 포함되어 이루어짐을 특징으로 하는 진공 냉장고,A vacuum refrigerator further comprising a backflow blocking valve provided in the connection hose between the vacuum chamber and the external air inlet hose to prevent external air from flowing back into the vacuum chamber when the vacuum pump is stopped; 제 3 항에 있어서,The method of claim 3, wherein 상기 역류차단밸브는 체크밸브임을 특징으로 하는 진공 냉장고.The back flow blocking valve is a vacuum refrigerator, characterized in that the check valve.
KR1020000073776A 2000-12-06 2000-12-06 device for decreasing load of vacuum refrigerator KR100359832B1 (en)

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