KR100461132B1 - Device for preventing compression of liquid refrigerant in the compressor - Google Patents

Device for preventing compression of liquid refrigerant in the compressor Download PDF

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Publication number
KR100461132B1
KR100461132B1 KR10-2001-0077868A KR20010077868A KR100461132B1 KR 100461132 B1 KR100461132 B1 KR 100461132B1 KR 20010077868 A KR20010077868 A KR 20010077868A KR 100461132 B1 KR100461132 B1 KR 100461132B1
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South Korea
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compressor
air conditioner
present
liquid
refrigerant
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KR10-2001-0077868A
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Korean (ko)
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KR20030047390A (en
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최중호
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현대자동차주식회사
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/32—Cooling devices
    • B60H1/3204—Cooling devices using compression
    • B60H1/3223—Cooling devices using compression characterised by the arrangement or type of the compressor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/22—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant
    • B60H1/2215—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant the heat being derived from electric heaters
    • B60H1/2218—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant the heat being derived from electric heaters controlling the operation of electric heaters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/32—Cooling devices
    • B60H2001/3236—Cooling devices information from a variable is obtained
    • B60H2001/3255—Cooling devices information from a variable is obtained related to temperature
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/32—Cooling devices
    • B60H2001/3236—Cooling devices information from a variable is obtained
    • B60H2001/3266—Cooling devices information from a variable is obtained related to the operation of the vehicle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/32—Cooling devices
    • B60H2001/3286—Constructional features

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  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Air-Conditioning For Vehicles (AREA)

Abstract

본 발명은 에어컨 컴프레셔의 액방축 방지 장치에 관한 것으로서, 기존에 에어컨 컴프레셔가 장시간 대기에 방치된 상태에서 주야간의 온도차로 인하여 냉매가 컴프레셔의 출구에 액상의 상태로 모이게 되어, 에어컨 가동과 동시에 컴프레셔의 초기 구동시 압축저항으로 인하여 심한 충격음이 발생하는 점을 해결하고자 한 것이다.The present invention relates to an apparatus for preventing liquid deflation of an air conditioner compressor. In the state where the air conditioner compressor is left in the air for a long time in the past, the refrigerant collects in the liquid state at the outlet of the compressor due to the temperature difference between the day and the night. This is to solve the problem that severe impact sound occurs due to the compression resistance during the initial driving.

이를 위해, 본 발명은 에어컨 컴프레셔의 출구측에 모여 있는 액상의 냉매를 기상으로 상변화되도록 하고, 컴프레셔의 압축저항을 줄여줄 수 있도록 컴프레셔내의 챔버에 발열 가능한 PTC소자를 설치한 것을 특징으로 하는 에어컨 컴프레셔의 액압축 방지 장치를 제공하고자 한 것이다.To this end, the present invention is to provide a phase change of the liquid refrigerant collected on the outlet side of the air conditioner compressor to the gas phase, and to install a heat generating PTC element in the chamber in the compressor to reduce the compression resistance of the compressor An object of the present invention is to provide a compressor for preventing liquid compression.

Description

에어컨 컴프레셔의 액압축 방지 장치{Device for preventing compression of liquid refrigerant in the compressor}Device for preventing compression of liquid refrigerant in the compressor

본 발명은 에어컨 컴프레셔의 액압축 방지 장치에 관한 것으로서, 더욱 상세하게는 에어컨 컴프레셔의 출구측에 액상의 상태로 모여있는 냉매를 기상의 냉매로 전환시킬 수 있도록 하여, 액상의 냉매가 압축되는 것을 방지할 수 있도록 한 자동차용 에어컨 컴프레셔의 액압축 방지 장치에 관한 것이다.The present invention relates to a liquid compression prevention device of an air conditioner compressor, and more particularly, to enable the refrigerant collected in the liquid state at the outlet side of the air conditioner compressor to be converted into the refrigerant of the gas phase, thereby preventing the liquid refrigerant from being compressed. The present invention relates to a liquid compression prevention device for an automotive air conditioner compressor.

통상적으로 자동차용 냉방장치는 냉매가스가 증발기에서 컴프레서로 흡입 압축된 후, 고온 고압의 가스상태가 되어 응축기로 보내어지고, 응축기로 보내어진 냉매는 강제 냉각되어 액화되며, 액화된 냉매는 리시버 드라이어로 들어가 수분과 먼지등이 제거된 후, 팽창밸브로 흘러가고, 팽창밸브에서 고압 액상의 냉매는 급격히 팽창되고, 저온 저압의 안개상태의 냉매가 되어 증발기로 들어간다.In general, a vehicle cooling device is a refrigerant gas is compressed by suction from the evaporator to the compressor, and then the gas is a high temperature and high pressure gas is sent to the condenser, the refrigerant sent to the condenser is forced to cool and liquefied, the liquefied refrigerant is a receiver dryer After the moisture and dust are removed, the flow flows to the expansion valve, and the high pressure liquid refrigerant rapidly expands and enters the evaporator as a low temperature low pressure mist refrigerant.

이와 같이 냉매가 냉동사이클을 반복 순환하여, 냉방이 이루어지는 것이다.In this way, the refrigerant is repeatedly circulated in the refrigeration cycle, thereby cooling.

한편, 차량의 주차시 에어컨 컴프레셔는 장시간 대기에 방치된 상태로서, 주야간의 온도차로 인하여 냉매의 이동 현상이 발생한다.Meanwhile, when the vehicle is parked, the air conditioner compressor is left in the air for a long time, and the movement of the refrigerant occurs due to the temperature difference between day and night.

즉, 냉방시스템에서 상대적으로 온도가 낮은 컴프레셔쪽으로 냉매가 모이게 되며, 이때 모여진 냉매는 컴프레셔의 출구에 액상의 상태로 모이게 되어, 에어컨 가동과 동시에 컴프레셔의 초기 구동시 압축저항으로 인하여 심한 충격음이 발생하고, 심할 경우 컴프레셔가 소착되거나 엔진시동이 꺼지게 되는 문제점이 있다.That is, in the cooling system, the refrigerant is collected toward the compressor having a relatively low temperature. At this time, the collected refrigerant is collected in a liquid state at the outlet of the compressor. At the same time as the air conditioner starts, severe impact sounds are generated due to the compression resistance during the initial operation of the compressor. If severe, the compressor is squeezed or the engine is turned off.

따라서, 본 발명은 상기와 같은 문제점을 감안하여 안출한 것으로서, 에어컨 컴프레셔의 출구측에 모여 있는 액상의 냉매를 기상으로 상변화되도록 하고, 컴프레셔의 압축저항을 줄여줄 수 있도록 컴프레셔내의 챔버에 발열 가능한 PTC소자를설치한 것을 특징으로 하는 에어컨 컴프레셔의 액압축 방지 장치를 제공하는데 그 목적이 있다.Accordingly, the present invention has been made in view of the above-described problems, and the liquid refrigerant collected at the outlet side of the air conditioner compressor can be phase-changed to the gas phase, and heat can be generated in the chamber in the compressor to reduce the compression resistance of the compressor. It is an object of the present invention to provide a liquid compression prevention device for an air conditioner compressor, wherein a PTC element is provided.

도 1은 본 발명에 따른 에어컨 컴프레셔의 액압축 방지 장치를 나타내는 개략도,1 is a schematic view showing a liquid compression prevention device of an air conditioner compressor according to the present invention;

도 2는 본 발명에 따른 에어컨 컴프레셔의 챔버에 설치된 PTC소자의 발열특성 곡선을 나타내는 그래프.Figure 2 is a graph showing the heat generation characteristic curve of the PTC element installed in the chamber of the air conditioner compressor according to the present invention.

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

10 : 컴프레셔 12 : 챔버10: compressor 12: chamber

14 : PTC소자 16 : 전자제어유니트14 PTC device 16 Electronic control unit

18 : 타이머 센서 20 : 외기온도감지센서18: timer sensor 20: outside temperature sensor

22 : 차속센서 24 : 시동키 스위치22: vehicle speed sensor 24: start key switch

이하, 본 발명을 첨부도면을 참조로 설명한다.Hereinafter, the present invention will be described with reference to the accompanying drawings.

상기한 목적을 달성하기 위한 본 발명은:The present invention for achieving the above object is:

에어컨 컴프레셔(10)내의 챔버(12)에 설치된 발열 가능한 PTC소자(14)와;A heat generating PTC element 14 installed in the chamber 12 in the air conditioner compressor 10;

상기 PTC소자(14)와 시동키스위치(24) 사이를 연결하는 전자제어유니트(16)로 구성되고, 상기 전자제어유니트(16)의 입력측에는 에어컨의 온/오프시간을 계측하는 타이머 센서(18)와, 외기온도감지센서(20)와, 차속센서(22)가 연결된 것을 특징으로 한다.A timer sensor 18 configured to measure an on / off time of the air conditioner on the input side of the electronic control unit 16, the electronic control unit 16 connecting between the PTC element 14 and the start key switch 24; ), The outside air temperature sensor 20 and the vehicle speed sensor 22 is characterized in that it is connected.

여기서 본 발명의 실시예를 첨부한 도면을 참조로 더욱 상세하게 설명하면 다음과 같다.Hereinafter, the embodiment of the present invention will be described in detail with reference to the accompanying drawings.

첨부한 도 1은 본 발명에 따른 에어컨 컴프레셔의 액압축 방지 장치를 나타내는 개략도로서, 도면부호 14은 자동차의 에어컨 컴프레셔(10)내의 챔버(12)에 설치되는 PTC(Positive Temperature Coeffcient)소자를 나타낸다.1 is a schematic view showing a liquid compression prevention device of an air conditioner compressor according to the present invention, and reference numeral 14 denotes a PTC (Positive Temperature Coeffcient) element installed in the chamber 12 of the air conditioner compressor 10 of a vehicle.

상기 PTC 소자(14)는 소정의 전류가 통하는 저항체로서, 발열을 하는 특성을 지니고 있는 소자이다.The PTC element 14 is a resistor through which a predetermined current passes, and has a characteristic of generating heat.

한편, 상기 PTC소자(14)와 시동키스위치(24) 사이에는 전자제어유니트(16)가 연결되고, 또한 상기 전자제어유니트(16)의 입력측에는 에어컨의 온/오프시간을 계측하는 타이머 센서(18)와, 외기온도감지센서(20)와, 차속센서(22)가 연결된다.On the other hand, an electronic control unit 16 is connected between the PTC element 14 and the start key switch 24, and a timer sensor for measuring the on / off time of the air conditioner on the input side of the electronic control unit 16 ( 18), the outside air temperature sensor 20, and the vehicle speed sensor 22 is connected.

상기 각 센서들의 감지조건은 다음과 같다.The detection conditions of the respective sensors are as follows.

상기 타이머 센서(18)는 에어컨을 온(ON)시킨 후 오프(OFF)시켰다가 다시 에어컨을 온(ON)시킬 때 그 사이의 시간(예를 들면, 10시간 이상)을 감지하는 역할을 하고, 상기 외기온도감지센서(20)는 외기온도(예를 들면, 10℃ 이상)를 감지하는 역할을 하며, 상기 차속센서(22)는 차량의 속도(예를 들면, 10Km/h 이하)를 감지하는 역할을 한다.The timer sensor 18 serves to detect a time (eg, 10 hours or more) between turning the air conditioner on and then off, and then turning the air conditioner on again. The outside air temperature sensor 20 serves to detect outside air temperature (eg, 10 ° C. or more), and the vehicle speed sensor 22 detects the speed of the vehicle (eg, 10 km / h or less). Play a role.

따라서, 차량의 시동을 온(ON)시킨 상태에서 상기 타이머 센서(18)가 감지한 시간이 10시간 이상이고, 상기 외기온도감지센서(20)가 감지한 온도가 10℃ 이상이며, 차속센서(22)가 감지한 속도가 10Km/h 이상이면, 이때의 신호들은 상기 전자제어유니트(16)로 보내지게 되고, 전자제어유니트(16)에서는 전류신호를 상기 PTC소자(14)로 보내게 되므로서, PTC소자(14)가 발열을 하게 된다.Accordingly, the time detected by the timer sensor 18 is 10 hours or more, the temperature detected by the ambient temperature sensor 20 is 10 ° C. or more, and the vehicle speed sensor ( When the speed detected by 22 is 10 Km / h or more, the signals at this time are sent to the electronic control unit 16, and the electronic control unit 16 sends a current signal to the PTC element 14, The PTC element 14 generates heat.

이에따라, 상술한 바와 같이 에어컨 컴프레셔가 장시간 대기에 방치된 상태에서 주야간의 온도차로 인하여 컴프레셔(10)의 출구에 액상의 상태로 모여 있는 냉매가 상기 PTC소자(14)의 발열로 인하여 기상으로 상변화되어진다.Accordingly, as described above, the refrigerant collected in the liquid state at the outlet of the compressor 10 due to the temperature difference between day and night in the state where the air conditioner compressor is left in the air for a long time phase changes in the gas phase due to the heat generation of the PTC element 14. It is done.

이때, 상기 PTC소자(14)의 발열시간은 전자제어유니트(16)의 전류신호 제어로 인하여, 약 6초간 작동되도록 한다.At this time, the heat generation time of the PTC element 14 is to be operated for about 6 seconds due to the control of the current signal of the electronic control unit 16.

이와 같이, 상기 PTC소자(14)의 6초간 작동후, 에어컨 스위치를 온시켜서 컴프레셔(10)를 작동시키게 되어, 기존에 액상의 냉매로 인한 컴프레셔의 압축저항을 줄여줄 수 있게 된다.As such, after operating the PTC element 14 for 6 seconds, the compressor 10 is operated by turning on the air conditioner switch, thereby reducing the compression resistance of the compressor due to the liquid refrigerant.

이상에서 본 바와 같이, 본 발명에 따른 에어컨 컴프레셔의 액압축 방지 장치에 의하면, 컴프레셔의 챔버에 조건에 따라 발열 가능한 PTC소자를 설치함으로써, 기존에 컴프레셔의 출구측에 모이게 되는 액상의 냉매를 기상으로 상변화시킬 수 있고, 그에따라 컴프레셔의 출구측 압축저항을 줄여서, 컴프레셔의 작동을 정상적으로 유지시킬 수 있는 장점이 있다.As described above, according to the liquid compression prevention device of the air conditioner compressor according to the present invention, by installing a PTC element capable of generating heat according to the conditions in the chamber of the compressor, the liquid refrigerant previously collected at the outlet side of the compressor to the gas phase The phase change can be made, and accordingly, the compression resistance of the outlet side of the compressor can be reduced, so that the operation of the compressor can be maintained normally.

Claims (1)

에어컨 컴프레셔(10)내의 챔버(12)에 설치된 발열 가능한 PTC소자(14)와;A heat generating PTC element 14 installed in the chamber 12 in the air conditioner compressor 10; 상기 PTC소자(14)와 시동키스위치(24) 사이를 연결하는 전자제어유니트(16)로 구성되고, 상기 전자제어유니트(16)의 입력측에는 에어컨의 온/오프시간을 계측하는 타이머 센서(18)와, 외기온도감지센서(20)와, 차속센서(22)가 연결된 것을 특징으로 하는 에어컨 컴프레셔의 액압축 방지 장치.A timer sensor 18 configured to measure an on / off time of the air conditioner on the input side of the electronic control unit 16, the electronic control unit 16 connecting between the PTC element 14 and the start key switch 24; ), The outside air temperature sensor 20, and the vehicle speed sensor 22, characterized in that the liquid compression prevention device of the air conditioner compressor.
KR10-2001-0077868A 2001-12-10 2001-12-10 Device for preventing compression of liquid refrigerant in the compressor KR100461132B1 (en)

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JPH10329536A (en) * 1997-05-28 1998-12-15 Calsonic Corp Air conditioner for automobile
JPH10329535A (en) * 1997-05-28 1998-12-15 Calsonic Corp Air conditioner for automobile

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JPH10329536A (en) * 1997-05-28 1998-12-15 Calsonic Corp Air conditioner for automobile
JPH10329535A (en) * 1997-05-28 1998-12-15 Calsonic Corp Air conditioner for automobile

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