KR19980047927U - Car air conditioner refrigerant pressure control device - Google Patents
Car air conditioner refrigerant pressure control device Download PDFInfo
- Publication number
- KR19980047927U KR19980047927U KR2019960061085U KR19960061085U KR19980047927U KR 19980047927 U KR19980047927 U KR 19980047927U KR 2019960061085 U KR2019960061085 U KR 2019960061085U KR 19960061085 U KR19960061085 U KR 19960061085U KR 19980047927 U KR19980047927 U KR 19980047927U
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- refrigerant
- pressure
- refrigerant pressure
- air conditioner
- storage tank
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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
- B60H1/3205—Control means therefor
- B60H1/3211—Control means therefor for increasing the efficiency of a vehicle refrigeration cycle
-
- 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
- B60H1/3225—Cooling devices using compression characterised by safety arrangements, e.g. compressor anti-seizure means or by signalling devices
-
- 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
- B60H2001/3248—Cooling devices information from a variable is obtained related to pressure
- B60H2001/325—Cooling devices information from a variable is obtained related to pressure of the refrigerant at a compressing unit
-
- 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
- B60H2001/3257—Cooling devices information from a variable is obtained related to temperature of the refrigerant at a compressing unit
-
- 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
- B60H2001/3269—Cooling devices output of a control signal
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- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
본 고안은 카에어컨 냉매 자동공급장치에 관한 것으로, 카에어컨의 냉동싸이클에 있어서, 냉매관과 연설되어 전자변(51)에 의해 관로가 개폐되고 일정용량의 냉매를 저장하기 위한 냉매저장탱크(50)와, 압축기(10) 토출측에 설치되어 냉매압 및 냉매온도를 검출하는 압력센서(52) 및 온도센서(53)와, 상기 압력센서(52) 및 온도센서(53)에서 검출된 신호를 근거로 설정된 기준압력과 비교하여 냉매압을 판정하는 ECU(60)와, 상기 ECU(60)의 제어에 의해 구동되어 냉매저장탱크의 전자변(51)을 제어하는 제어부(70)로 구성되어 냉매압을 조절함으로써, 순환중인 냉매압이 기준압력 보다 과도하게 높거나 또는 낮을 경우 저장탱크의 관로를 개로시켜 냉매압을 보충 또는 다운시켜 전체적인 냉매압을 조절함으로써 육안으로 냉매를 확인해야 하는 번거로움을 해소할 수 있고, 아울러 냉매압 불일치에 따른 기계적인 소손을 방지할 수 있는 효과가 있다.The present invention relates to a car air conditioner automatic supply device, in the refrigeration cycle of the car air conditioner, the refrigerant storage tank (50) for communicating with the coolant pipe is opened and closed by the electronic valve 51 to store the refrigerant of a certain capacity And a pressure sensor 52 and a temperature sensor 53 installed at the discharge side of the compressor 10 to detect the refrigerant pressure and the refrigerant temperature, and based on the signals detected by the pressure sensor 52 and the temperature sensor 53. ECU 60 which determines the refrigerant pressure in comparison with the set reference pressure, and a controller 70 which is driven by the control of the ECU 60 and controls the electronic valve 51 of the refrigerant storage tank to adjust the refrigerant pressure. Therefore, when the refrigerant pressure in circulation is excessively higher or lower than the reference pressure, the pipeline of the storage tank is opened to replenish or lower the refrigerant pressure, thereby adjusting the overall refrigerant pressure, thereby eliminating the need to check the refrigerant visually.And, as well as the effect of preventing a mechanical damage of the refrigerant pressure mismatch.
Description
본 고안은 자동차 카에어컨의 냉동싸이클의 냉매압 제어에 관한 것으로, 특히 냉매압을 자동으로 조절할 수 있도록 하는 카에어컨 냉매압 제어장치에 관한 것이다.The present invention relates to a refrigerant pressure control of a refrigeration cycle of a car air conditioner, and more particularly to a car air conditioner refrigerant pressure control device to automatically adjust the refrigerant pressure.
일반적으로 카에어컨은 기계적인 수단에 의해 냉매를 강제적으로 순환시켜 압축-응축-팽창-증발과정을 통해 외기와 열교환이 이루어지도록 함으로써 목적하는 바 차량 실내를 냉·난방 공조하게 되며, 이러한 냉·난방 공조는 단위 중량당 냉매가 증발기를 통해 증발(응축)할 때 흡수(발열)하는 열량 즉, 증발기 입구와 출구의 비엔탈피 차에 의해 흡수(발열) 온도가 결정된다.In general, air conditioners are forced to circulate refrigerant by mechanical means to exchange heat with outside air through compression, condensation, expansion, and evaporation. In the air conditioning, the absorption (heating) temperature is determined by the amount of heat absorbed (heating) when the refrigerant per unit weight evaporates (condenses) through the evaporator, that is, the specific enthalpy difference between the evaporator inlet and the outlet.
일예로 냉동싸이클은 도 1과 같이 엔진 회전력을 전달받아 구동하는 압축기(10)에서 냉매가 고온고압으로 압축된 후 응축기(20)(21)에서 응축 액화되어 팽창밸브(30)를 통과하면서 교축 단열팽창되어 저압의 이상류도 되고, 팽창밸브(30)에서 압력과 온도가 하강된 저온 저압의 냉매는 증발기(30)에 유입되어 실내공기와 열교환되면서 증발하여 압축기(10)로 유입되게 순차적으로 연설되어 밀폐회로를 형성하고 있다. 도면중 미설명 부호 1은 압축기에 동력을 전달하는 엔진을 도시한 것이며, 31은 냉매를 관측하기 위한 사이트클래스이다.As an example, the refrigerating cycle is compressed by the refrigerant at high temperature and high pressure in the compressor 10 driven by receiving the engine rotational force as shown in FIG. 1, and then condensed in the condenser 20 and 21 to pass through the expansion valve 30. Low-temperature, low-pressure refrigerant, which is thermally expanded and becomes a low pressure ideal flow, and whose temperature and pressure are lowered in the expansion valve 30, flows into the evaporator 30, exchanges heat with indoor air, and evaporates into the compressor 10. To form a closed circuit. In the figure, reference numeral 1 denotes an engine for transmitting power to a compressor, and 31 is a sight class for observing a refrigerant.
이와 같이 구성된 냉동싸이클은 엔진(1)의 동력을 전달받아 기계적인 방법에 의해 냉매가 순환하면서 응축기(20)와 증발기(40)를 통해 열교환하여 목적하는 바 냉방을 실행하게 된다.The refrigeration cycle configured as described above receives heat from the condenser 20 and the evaporator 40 while circulating the refrigerant by a mechanical method by receiving the power of the engine 1 to perform the desired bar cooling.
그러나 카에어컨을 장기간 사용하거나 외부온도가 높을 경우 압축기에 과부하가 걸려 냉매압이 과도하게 상승하거나 반대로 냉매압이 기준압보다 낮아질 경우 열교환효율이 감소하는 문제점이 있었지만 종래 카에어컨에는 단지 사이트클래스를 통해 육안으로 확인하여 후속조치를 단행하여야 하는 번거로움이 있었다.However, if the air conditioner is used for a long time or the external temperature is high, the compressor is overloaded and the refrigerant pressure is excessively increased or conversely, if the refrigerant pressure is lower than the reference pressure, the heat exchange efficiency is reduced. There was a hassle to check with the naked eye and follow up.
본 고안은 이러한 점을 감안하여 안출된 것으로, 특히 냉동싸이클을 순환하는 냉매압이 기준압보다 높거나 또는 낮을 경우 자동으로 냉매압을 조절하여 냉방효율을 향상시킬 수 있도록 하는 카에어컨 냉매압 제어장치를 제공하는데 목적이 있다.The present invention has been devised in view of this point, and in particular, when the refrigerant pressure circulating in the refrigeration cycle is higher or lower than the reference pressure, the air conditioner refrigerant pressure control device to automatically adjust the refrigerant pressure to improve the cooling efficiency The purpose is to provide.
이러한 목적을 달성하기 위한 본 고안의 카에어컨 냉매압 제어장치는 카에어컨의 냉동싸이클에 있어서, 냉매관과 연설되어 전자변에 의해 관로가 개폐되고 일정용량의 냉매를 저장하기 위한 냉매저장탱크와, 압축기 토출측에 설치되어 냉매압 및 냉매온도를 검출하는 압력센서 및 온도센서와, 상기 압력센서 및 온도센서에서 검출된 신호를 근거로 설정된 기준압력과 비교하여 냉매압을 판정하는 ECU와, 상기 ECU의 제어에 의해 구동되어 냉매저장탱크의 전자변을 제어하는 제어부로 구성됨을 특징으로 한다.Car air conditioner refrigerant pressure control device of the present invention for achieving this object is a refrigerant storage tank for the refrigerant air in the refrigeration cycle of the car air conditioner, the refrigerant pipe is opened and closed by the electronic valve to store the refrigerant of a certain capacity, and the compressor, A pressure sensor and a temperature sensor installed at the discharge side to detect the refrigerant pressure and the refrigerant temperature, an ECU which determines the refrigerant pressure by comparing with a reference pressure set based on signals detected by the pressure sensor and the temperature sensor, and control of the ECU It is characterized in that it is driven by the control unit for controlling the electronic valve of the refrigerant storage tank.
이러한 구성에 의하면, 카에어컨 구동중 냉매압이 과도하게 높거나 또는 낮을 경우 냉매저장탱크의 관로를 개폐하여 저장탱크로의 냉매 유/출입을 통해 냉매압을 조절하게 된다.According to such a configuration, when the refrigerant pressure is excessively high or low during driving of the air conditioner, the refrigerant pressure is controlled through opening and closing of the refrigerant storage tank and opening / closing the refrigerant into the storage tank.
도 1은 일반적인 카에어컨의 냉동싸이클을 보인 계통도.1 is a system diagram showing a refrigeration cycle of a typical car air conditioner.
도 2는 본 고안의 냉매 자동공급 회로도.2 is a refrigerant automatic supply circuit diagram of the present invention.
*도면의 주요부분에 대한 부호의 설명** Explanation of symbols for main parts of drawings
10 : 압축기50 : 냉매저장탱크10: compressor 50: refrigerant storage tank
51 : 전자변52 : 압력센서51: electronic valve 52: pressure sensor
53 : 온도센서60 : ECU53: temperature sensor 60: ECU
70 : 제어부70: control unit
이하, 본 고안의 바람직한 실시예를 첨부된 도면을 통해 상세하게 설명하면 다음과 같다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
도 2는 본 고안의 냉매압 제어장치를 보인 블록회로도로써, 이하 종래 기술과 동일구성에 대해서는 동일부호를 첨부하며 중복설명을 생략한다.Figure 2 is a block circuit diagram showing a refrigerant pressure control device of the present invention, the same configuration as the prior art will be attached with the same reference numerals and will not be repeated description.
본 고안은 냉매관과 연설되어 전자변(51)에 의해 관로가 개폐되고 일정용량의 냉매를 저장하기 위한 냉매저장탱크(50)와, 압축기(10) 토출측에 설치되어 냉매압 및 냉매온도를 검출하는 압력센서(52) 및 온도센서(53)와, 상기 압력센서(52) 및 온도센서(53)에서 검출된 신호를 근거로 설정된 기준압력과 비교하여 냉매압을 판정하는 ECU(60)와, 상기 ECU의 제어에 의해 구동되어 냉매저장탱크의 전자변(51)을 제어하는 제어부(70)로 구성되어 냉매압을 조절하게 된다.The present invention is installed in the refrigerant storage tank 50 and the compressor 10 discharge side to detect the refrigerant pressure and the refrigerant temperature to the refrigerant pipe is opened and the pipeline is opened and closed by the electromagnetic valve 51 and to store the refrigerant of a certain capacity. The pressure sensor 52 and the temperature sensor 53, the ECU 60 which determines the refrigerant pressure by comparing with a reference pressure set based on the signals detected by the pressure sensor 52 and the temperature sensor 53, and The controller 70 is driven by the control of the ECU to control the electronic valve 51 of the refrigerant storage tank to adjust the refrigerant pressure.
이하, 상기한 실시예 구성에 따른 작용을 상세하게 설명하면, 본 고안은 엔진이 발진한 상태에서 에어컨스위치(도면 생략)를 온시키면 마그네틱 클러치가 압축기(10) 자화되면서 엔진(1)의 동력을 압축기(10)에 전달하여 냉동싸이클의 냉매를 압송시키게 된다.Hereinafter, the operation according to the configuration of the embodiment described in detail, the present invention is to turn on the air conditioner switch (not shown) in the state that the engine is started, the magnetic clutch of the compressor 10 while magnetizing the power of the engine 1 The refrigerant is delivered to the compressor 10 to pressurize the refrigerant of the refrigeration cycle.
이러한 과정을 통해 냉동싸이클이 구동되면서 외부온도나 그 밖의 환경에 의해 냉매압이 높아질 경우, 압력센서(52)와 온도센서(53)에서 냉매상태를 검출하여 ECU(60)에 전달하면 상기 ECU(60)에서는 냉매 기준압력과 비교하여 냉매압의 과도를 판정하게 되며 만약 검출된 냉매압이 기준압력보다 높을 경우에는 제어부(70)에 소정신호를 출력하게 되고 동시에 상기 제어부(70)는 전자변(71)을 제어하여 관로를 개도시킴으로써 냉동싸이클을 순환하고 있는 냉매를 냉매저장탱크(50)로 유출시켜 냉매압을 다운시키게 된다.When the refrigeration cycle is driven through such a process and the refrigerant pressure is increased due to an external temperature or other environment, when the refrigerant state is detected by the pressure sensor 52 and the temperature sensor 53 and transmitted to the ECU 60, the ECU ( In operation 60, the transient pressure of the refrigerant is determined by comparing with the refrigerant reference pressure. If the detected refrigerant pressure is higher than the reference pressure, the controller 70 outputs a predetermined signal to the controller 70. By opening the conduit by controlling), the refrigerant circulating in the freezing cycle flows out into the refrigerant storage tank 50 to lower the refrigerant pressure.
반대로, 냉매가 안정되지 않은 초기 에어컨 구도시에는 냉매저장탱크(50)에 저장된 비교적 고압의 냉매를 냉동싸이클로 유출시켜 전체적인 냉매압을 안정시킴으로써 조기에 냉방력을 증대시킬 수 있게 되며, 이로 인해 냉매압 불일치로 인한 계적 손상을 방지할 수 있다.On the contrary, in the old air conditioner in which the refrigerant is not stable, relatively high pressure refrigerant stored in the refrigerant storage tank 50 is discharged to the refrigeration cycle to stabilize the overall refrigerant pressure, thereby increasing the cooling power at an early stage. System damage due to inconsistency can be prevented.
이상에서 설명한 바와 같이 본 고안은 냉동싸이클의 냉매관과 연통되게 냉매저장탱크를 설치하여 순환중인 냉매압이 기준압력 보다 과도하게 높거나 또는 낮을 경우 저장탱크의 관로를 개로시켜 냉매압을 보충 또는 다운시켜 전체적인 냉매압을 조절함으로써 육안으로 냉매를 확인해야 하는 번거로움을 해소할 수 있고, 아울러 냉매압 불일치에 따른 기계적인 소손을 방지할 수 있는 효과가 있다.As described above, the present invention installs the refrigerant storage tank in communication with the refrigerant tube of the refrigeration cycle, and if the refrigerant pressure in circulation is excessively higher or lower than the reference pressure, open the pipeline of the storage tank to replenish or reduce the refrigerant pressure. By adjusting the overall refrigerant pressure, it is possible to eliminate the trouble of having to check the refrigerant with the naked eye, and also to prevent mechanical damage due to the refrigerant pressure mismatch.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019960061085U KR19980047927U (en) | 1996-12-28 | 1996-12-28 | Car air conditioner refrigerant pressure control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019960061085U KR19980047927U (en) | 1996-12-28 | 1996-12-28 | Car air conditioner refrigerant pressure control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR19980047927U true KR19980047927U (en) | 1998-09-25 |
Family
ID=53999704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019960061085U KR19980047927U (en) | 1996-12-28 | 1996-12-28 | Car air conditioner refrigerant pressure control device |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR19980047927U (en) |
-
1996
- 1996-12-28 KR KR2019960061085U patent/KR19980047927U/en not_active Application Discontinuation
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