KR100442381B1 - Cycle loss depreciation method of refrigerator using linear compressor - Google Patents

Cycle loss depreciation method of refrigerator using linear compressor Download PDF

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Publication number
KR100442381B1
KR100442381B1 KR10-2001-0065098A KR20010065098A KR100442381B1 KR 100442381 B1 KR100442381 B1 KR 100442381B1 KR 20010065098 A KR20010065098 A KR 20010065098A KR 100442381 B1 KR100442381 B1 KR 100442381B1
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South Korea
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temperature
refrigerator
compressor
linear compressor
energy valve
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KR10-2001-0065098A
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Korean (ko)
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KR20030033357A (en
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정의엽
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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
    • 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
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/07—Details of compressors or related parts
    • F25B2400/073—Linear compressors
    • 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
    • F25B2500/00—Problems to be solved
    • F25B2500/06—Damage
    • 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
    • F25B2600/2519—On-off valves

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

Abstract

본 발명은 선형 압축기를 이용한 냉장고의 싸이클 손실 저감방법에 관한 것으로, 압축기의 동작되어 응축기에 있던 고온의 냉매가 모세관을 통하여 저온의 증발기로 유입됨으로 인한 손실을 방지하도록 한 것이다. 이를 위하여 본 발명은 선형압축기에 있어서, 냉장고내 온도가 상한온도보다 크면 압축기를 온시키고, 일정시간이 경과하였는지를 판단하는 제1 과정과; 상기 제1 과정의 판단결과, 압축기를 온시킨 후 일정시간이 경과되면, 에너지밸브를 오픈시키고, 냉장고내 온도가 하한온도보다 낮은지를 판단하는 제2 과정과; 상기 제2 과정의 판단결과, 냉장고내 온도가 하한온도보다 작으면, 압축기를 오프시킴과 아울러 에너지밸브를 클로우즈하는 제3과정으로 수행한다.The present invention relates to a cycle loss reduction method of a refrigerator using a linear compressor, to prevent the loss caused by the high temperature refrigerant introduced into the low temperature evaporator through the capillary tube operating the compressor. To this end, the present invention provides a linear compressor, comprising: a first process of turning on a compressor when a temperature in a refrigerator is greater than an upper limit temperature and determining whether a predetermined time has elapsed; A second step of determining whether the temperature in the refrigerator is lower than a lower limit temperature by opening an energy valve when a predetermined time elapses after turning on the compressor as a result of the determination of the first step; As a result of the determination of the second process, if the temperature in the refrigerator is lower than the lower limit temperature, the compressor is turned off and the third process of closing the energy valve is performed.

Description

선형 압축기를 이용한 냉장고의 싸이클 손실 저감방법{CYCLE LOSS DEPRECIATION METHOD OF REFRIGERATOR USING LINEAR COMPRESSOR}Cycle loss reduction method of refrigerator using linear compressor {CYCLE LOSS DEPRECIATION METHOD OF REFRIGERATOR USING LINEAR COMPRESSOR}

본 발명은 선형 압축기를 이용한 냉장고의 싸이클 손실 저감방법에 관한 것으로, 특히 압축기가 동작되어 응축기에 있던 고온의 냉매가 모세관을 통하여 저온의 증발기로 유입됨으로 인한 고온냉매의 손실을 방지하도록 한 선형압축기를 이용한 냉장고의 냉동 싸이클 손실 저감방법에 관한 것이다.The present invention relates to a method for reducing cycle loss of a refrigerator using a linear compressor, and more particularly, to a linear compressor configured to prevent the loss of high temperature refrigerant due to the high temperature refrigerant in the condenser being introduced into the low temperature evaporator through a capillary tube. It relates to a method for reducing the freezing cycle loss of the refrigerator used.

도1은 일반적인 냉장고의 냉동싸이클을 보인 보인 개략도로서, 이에 도시된 바와같이 증발기에서 토출되는 저온, 저압의 냉매증기를 흡입하여 이를 압축함으로써 고온, 고압의 증기로 만드는 압축기(1)와; 상기 압축기(1)에서 토출된 고온, 고압의 냉매증기의 열을 물 또는 공기 중에 방출시키고, 고압의 포화액으로 변화시키는 응축기(2)와; 상기 응축기(2)에서 토출된 고압의 포화액을, 모세관(3)을 통해 통해 저온, 저압의 냉매로 흡입하여 이를 증발시켜, 냉동실의 공기와 열교환하는 제1 증발기(F-EVA)와; 상기 응축기(2)에서 토출된 고압의 포화액을, 모세관(3)을 통해 저온,저압의 냉매로 흡입하여 이를 증발시켜, 냉장실의 공기와 열교환하는 제2 증발기(R-EVA)를 구비하며, 이와같은 냉동싸이클을 설명한다.1 is a schematic view showing a refrigerating cycle of a typical refrigerator, as shown in FIG. 1, a compressor (1) which makes high-temperature, high-pressure steam by sucking and compressing a low-temperature, low-pressure refrigerant vapor discharged from an evaporator; A condenser (2) for dissipating the heat of the high-temperature, high-pressure refrigerant vapor discharged from the compressor (1) into water or air, and converting it into a high-pressure saturated liquid; A first evaporator (F-EVA) for sucking and evaporating the high pressure saturated liquid discharged from the condenser (2) through a capillary tube (3) as a low temperature and low pressure refrigerant; It is provided with a second evaporator (R-EVA) to exchange the high pressure saturated liquid discharged from the condenser (2) as a refrigerant of low temperature, low pressure through the capillary tube (3) to evaporate it, and heat exchange with air in the refrigerating chamber, This refrigeration cycle is described.

먼저, 냉동 운전시, 압축기(1)에서 압축된 고온고압의 냉매는, 응축기(2)로 유입되어 응축된후, 모세관(3)을 지나면서 저온저압의 냉매로 된다.First, during the freezing operation, the high temperature and high pressure refrigerant compressed by the compressor 1 flows into the condenser 2 and condenses, and then passes through the capillary tube 3 to become a low temperature low pressure refrigerant.

이후, 제1 증발기(F-EVA)는 상기 저온저압 냉매를 흡입하여 이를 증발시켜, 냉동실의 공기와 열교환한다.Thereafter, the first evaporator (F-EVA) inhales and evaporates the low temperature low pressure refrigerant, and exchanges heat with air in the freezing compartment.

냉장운전시, 압축기(1)에서 압축된 고온고압의 냉매는, 응축기(2)로 유입되어 응축된후, 모세관(3)을 지나면서 저온저압의 냉매로 된다.In the refrigeration operation, the high temperature and high pressure refrigerant compressed by the compressor 1 flows into the condenser 2 and condenses, and then passes through the capillary tube 3 to become a low temperature low pressure refrigerant.

이후, 제2 증발기(R-EVA)는 상기 저온저압 냉매를 흡입하여 이를 증발시켜, 냉장실의 공기와 열교환한다.Thereafter, the second evaporator (R-EVA) inhales and evaporates the low temperature low pressure refrigerant to exchange heat with air in the refrigerating chamber.

이때, 상기 압축기(1)는, 냉장고에 대하여, 기설정된 상한온도와 하한온도를 기준으로 온/오프되는데, 즉 냉장고내 온도가 상한온도보다 높으면 압축기(1)를 온시키고, 냉장고내 온도가 하한온도보다 낮으면 압축기(1)를 오프시킨다.In this case, the compressor 1 is turned on / off with respect to the refrigerator based on a predetermined upper limit temperature and a lower limit temperature, that is, when the temperature in the refrigerator is higher than the upper limit temperature, the compressor 1 is turned on, and the temperature in the refrigerator is the lower limit. If it is lower than the temperature, the compressor 1 is turned off.

여기서, 상기 압축기(1)를 오프시키면, 응축기(2)에 있던 고온의 냉매가 모세관(3)을 통하여 저온의 증발기(F-EVA)(R-EVA)로 유입되어, 고온의 냉매가 유입되는 손실이 발생하게 되는데, 이를 방지하기 위하여, 상기 모세관(3)과 응축기(2) 사이에, 고온냉매가 증발기(F-EVA)(R-EVA)로 유입되는 것을 방지하기 위한 에너지밸브(E-BA)를 설치한다.Here, when the compressor 1 is turned off, the high temperature refrigerant in the condenser 2 flows into the low temperature evaporator (F-EVA) (R-EVA) through the capillary tube 3, and the high temperature refrigerant flows in. In order to prevent this, an energy valve (E-) between the capillary tube (3) and the condenser (2) prevents high temperature refrigerant from entering the evaporator (F-EVA) (R-EVA). Install BA).

상술한 에너지밸브(E-BA)가 적용된 냉동싸이클에 있어서, 선형 압축기는, 피스톤의 스트로크가 시간에 따라서 점차 커지게 되는데, 이로 인해, 에너지밸브(E-BA)를 압축기(1)를 온시킴과 동시에 열어주면, 압축기(1)가 제대로 압축을 하고 있지 않는 상태이므로, 고온의 냉매가 모세관(3)을 통해 저온의 증발기(F-EVA)(R-EVA)로 유입되는 문제점이 있다.In the refrigeration cycle to which the energy valve (E-BA) described above is applied, the linear compressor, the stroke of the piston gradually increases with time, thereby turning the energy valve (E-BA) on the compressor (1). When opened at the same time, since the compressor 1 is not compressed properly, a high temperature refrigerant flows into the low temperature evaporator (F-EVA) (R-EVA) through the capillary tube 3.

본 발명은 상기와 같은 문제점을 해결하기 위하여 안출된 것으로, 압축기 동작후 소정시간이 지나면, 모세관과 응축기 사이의 에너지 밸브를 열어주어 압력차를 크게함으로써, 냉동사이클 손실을 저감시킬 수 있도록 한 선형 압축기를 이용한 냉장고의 냉동 싸이클 손실 저감방법을 제공함에 그 목적이 있다.The present invention has been made to solve the above problems, and after a predetermined time after the operation of the compressor, by opening the energy valve between the capillary and the condenser to increase the pressure difference, the linear compressor to reduce the refrigeration cycle loss It is an object of the present invention to provide a method for reducing a freezing cycle loss of a refrigerator.

도1은 일반적인 냉장고의 냉동싸이클을 보인 보인 개략도.1 is a schematic view showing a refrigeration cycle of a typical refrigerator.

도2는 본 발명 선형압축기를 이용한 냉장고의 싸이클 손실 저감방법에 대한 동작흐름도.Figure 2 is a flow chart illustrating a cycle loss reduction method of the refrigerator using the linear compressor of the present invention.

도3은 도2에 있어서, 압축기와 에너지밸브의 온/오프를 보인 타이밍도.3 is a timing diagram showing on / off of a compressor and an energy valve in FIG.

상기와 같은 목적을 달성하기 위한 본 발명은, 선형압축기에 있어서, 냉장고내 온도가 상한온도보다 크면 압축기를 온시키고, 일정시간이 경과하였는지를 판단하는 제1 과정과; 상기 제1 과정의 판단결과, 압축기를 온시킨 후 일정시간이 경과되면, 에너지밸브를 오픈시키고, 냉장고내 온도가 하한온도보다 낮은지를 판단하는 제2 과정과; 상기 제2 과정의 판단결과, 냉장고내 온도가 하한온도보다 작으면, 압축기를 오프시킴과 아울러 에너지밸브를 클로우즈하는 제3과정으로 수행함을 특징으로 한다.The present invention for achieving the above object, the linear compressor, the first step of determining whether a predetermined time has elapsed when the temperature in the refrigerator is greater than the upper limit temperature, the compressor; A second step of determining whether the temperature in the refrigerator is lower than a lower limit temperature by opening an energy valve when a predetermined time elapses after turning on the compressor as a result of the determination of the first step; As a result of the determination of the second process, if the temperature in the refrigerator is lower than the lower limit temperature, the compressor is turned off and the energy valve is closed in a third process.

이하, 본 발명에 의한 선형압축기를 이용한 냉장고의 냉동 싸이클 손실 저감방법에 대한 작용 및 효과를 첨부한 도면을 참조하여 상세히 설명한다.Hereinafter, with reference to the accompanying drawings, the operation and effects of the method for reducing the freezing cycle loss of the refrigerator using a linear compressor according to the present invention will be described in detail.

본 발명 선형압축기를 이용한 냉장고의 냉동 싸이클 저감방법이 적용되는 냉장고의 냉동싸이클은 도1과 동일하다.The freezing cycle of the refrigerator to which the freezing cycle reduction method of the refrigerator using the linear compressor of the present invention is applied is the same as in FIG. 1.

도2는 본 발명 선형압축기를 이용한 냉장고의 냉동 싸이클 손실 저감방법에 대한 동작흐름도로서, 이에 도시한 바와같이 냉장고내 온도가 상한온도보다 크면, 압축기(1)를 온시킨후 소정시간이 경과하는지를 판단하는 제1 과정(SP1~SP3)과; 상기 제1 과정의 판단결과, 소정시간이 경과되면, 에너지밸브(E-BA)를 오픈(Open)시킨후, 냉장고내 온도가 하한온도보다 낮은지를 판단하는 제2 과정(SP4,SP5)과; 상기 제2 과정의 판단결과, 냉장고내 온도가 하한온도보다 작으면, 압축기(1)를 오프시킴과 아울러 에너지밸브(E-BA)를 클로우즈(Close)하는 제3과정(SP6)으로 이루어지며, 이와같은 본 발명의 동작을 설명한다.2 is a flowchart illustrating a method for reducing a freezing cycle loss of a refrigerator using a linear compressor according to the present invention. As shown in FIG. 2, when the temperature in the refrigerator is greater than the upper limit temperature, it is determined whether a predetermined time has elapsed after the compressor 1 is turned on. A first process (SP1 to SP3) to perform; A second step (SP4, SP5) of determining whether the temperature in the refrigerator is lower than a lower limit temperature after opening the energy valve (E-BA) when a predetermined time elapses as a result of the determination of the first step; As a result of the determination of the second process, when the temperature in the refrigerator is lower than the lower limit temperature, the compressor 1 is turned off and the third process SP6 is closed to close the energy valve E-BA. Such operation of the present invention will be described.

먼저,일반적인 냉동싸이클은 종래와 동일하다. 즉, 냉동 운전시, 압축기(1)에서 압축된 고온고압의 냉매는, 응축기(2)로 유입되어 응축된후, 모세관(3)을 지나면서 저온저압의 냉매로 된다.First, the general refrigeration cycle is the same as before. That is, during the freezing operation, the high temperature and high pressure refrigerant compressed by the compressor 1 flows into the condenser 2 and condenses, and then passes through the capillary tube 3 to become a low temperature low pressure refrigerant.

이후, 제1 증발기(F-EVA)는 상기 저온저압 냉매를 흡입하여 이를 증발시켜, 냉동실의 공기와 열교환한다.Thereafter, the first evaporator (F-EVA) inhales and evaporates the low temperature low pressure refrigerant, and exchanges heat with air in the freezing compartment.

냉장운전시, 압축기(1)에서 압축된 고온고압의 냉매는, 응축기(2)로 유입되어 응축된후, 모세관(3)을 지나면서 저온저압의 냉매로 된다.In the refrigeration operation, the high temperature and high pressure refrigerant compressed by the compressor 1 flows into the condenser 2 and condenses, and then passes through the capillary tube 3 to become a low temperature low pressure refrigerant.

이후, 제2 증발기(R-EVA)는 상기 저온저압 냉매를 흡입하여 이를 증발시켜, 냉장실의 공기와 열교환한다.Thereafter, the second evaporator (R-EVA) inhales and evaporates the low temperature low pressure refrigerant to exchange heat with air in the refrigerating chamber.

이때, 상기 압축기(1)는, 냉장고내에 기설정된 상한온도와 하한온도를 기준으로 온/오프되는데, 즉 냉장고내 온도가 상한온도보다 높으면 압축기(1)를 온시키고, 냉장고내 온도가 하한온도보다 낮으면 압축기(1)를 오프시킨다.At this time, the compressor 1 is turned on / off based on a predetermined upper limit temperature and a lower limit temperature in the refrigerator, that is, if the temperature in the refrigerator is higher than the upper limit temperature, the compressor 1 is turned on, and the temperature in the refrigerator is lower than the lower limit temperature. If it is low, the compressor 1 is turned off.

여기서, 본 발명은, 상기 응축기(2)와 모세관(3) 사이에 설치되는, 에너지밸브(E-BA)의 오픈(Open)/클로우즈(Close) 동작을, 도3과 같이 압축기(1)가 온된후 소정 시간이 지나면 오픈(Open) 하도록 제어하는 것이다.Here, the present invention, the compressor (1) as shown in FIG. 3 to perform the open / close operation of the energy valve (E-BA), which is installed between the condenser (2) and the capillary tube (3) It is controlled to open after a predetermined time after being turned on.

즉, 냉동 또는 냉장 운전시, 냉장고내 온도 또는 냉동고내 온도가 기설정된 상한온도보다 큰지를 판단한다(SP1).That is, during the freezing or refrigerating operation, it is determined whether the temperature in the refrigerator or the temperature in the freezer is greater than a predetermined upper limit temperature (SP1).

상기 판단결과, 냉장고내 온도 또는 냉동고내 온도가 상한 온도보다 크면, 선형 압축기(1)를 온시켜 냉기를 냉장고내로 토출시키면서(SP2), 상기 선형압축기(1)를 온시킨후, 소정시간(T)이 경과되었는지를 판단한다(SP3).As a result of the determination, if the temperature in the refrigerator or the temperature in the freezer is higher than the upper limit temperature, the linear compressor 1 is turned on and the cold air is discharged into the refrigerator (SP2). It is determined whether elapsed) (SP3).

상기 판단결과, 상기 선형 압축기(1)를 온시킨후, 소정시간(T)이 경과되면, 에너지 밸브(E-BA)를 오픈시켜, 냉동싸이클을 수행한다(SP4).As a result of the determination, after the predetermined time T has elapsed after the linear compressor 1 is turned on, the energy valve E-BA is opened to perform a refrigeration cycle (SP4).

이후, 상기 냉동 싸이클을 수행하면서, 냉장고내 온도 또는 냉동고내 온도가 기설정된 하한온도보다 낮은지를 판단하여(SP5), 그 하한온도보다 낮으면, 압축기 (1)를 오프시킴과 동시에, 에너지 밸브(E-BA)를 클로우즈시킨다.Thereafter, while performing the freezing cycle, it is determined whether the temperature in the refrigerator or the temperature in the freezer is lower than the predetermined lower limit temperature (SP5). If the temperature is lower than the lower limit temperature, the compressor 1 is turned off and at the same time, the energy valve ( E-BA) is closed.

이상에서 상세히 설명한 바와같이 본 발명은, 증발기와 응축기 사이의 압력차가 어느 정도 벌이지도록, 선형 압축기를 동작시킨후, 소정시간이 지나면, 모세관과 압축기 사이의 에너지 밸브를 열어줌으로써, 응축기에 있던 고온의 냉매가 저온의 증발기에 유입되는 것을 방지하여 냉동싸이클의 손실을 방지하는 효과가 있다.As described in detail above, the present invention operates the linear compressor so that the pressure difference between the evaporator and the condenser increases to a certain degree, and after a predetermined time, opens the energy valve between the capillary tube and the compressor, The refrigerant is prevented from entering the low temperature evaporator has the effect of preventing the loss of the freezing cycle.

Claims (1)

선형압축기에 있어서,In a linear compressor, 냉장고내 온도가 상한온도보다 크면 압축기를 온시키고, 일정시간이 경과하였는지를 판단하는 제1 과정과;A first step of turning on the compressor when the temperature in the refrigerator is greater than the upper limit temperature and determining whether a predetermined time has elapsed; 상기 제1 과정의 판단결과, 압축기를 온시킨 후 일정시간이 경과되면, 에너지밸브를 오픈시키고, 냉장고내 온도가 하한온도보다 낮은지를 판단하는 제2 과정과;A second step of determining whether the temperature in the refrigerator is lower than a lower limit temperature by opening an energy valve when a predetermined time elapses after turning on the compressor as a result of the determination of the first step; 상기 제2 과정의 판단결과, 냉장고내 온도가 하한온도보다 작으면, 압축기를 오프시킴과 아울러 에너지밸브를 클로우즈하는 제3과정으로 수행함을 특징으로 하는 냉장고의 냉동 싸이클 손실 저감방법.And a second step of closing the energy valve and closing the energy valve when the temperature in the refrigerator is less than the lower limit as a result of the determination of the second process.
KR10-2001-0065098A 2001-10-22 2001-10-22 Cycle loss depreciation method of refrigerator using linear compressor KR100442381B1 (en)

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