KR19980050984A - Back EMF prevention circuit structure of vehicle air conditioner - Google Patents

Back EMF prevention circuit structure of vehicle air conditioner Download PDF

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Publication number
KR19980050984A
KR19980050984A KR1019960069832A KR19960069832A KR19980050984A KR 19980050984 A KR19980050984 A KR 19980050984A KR 1019960069832 A KR1019960069832 A KR 1019960069832A KR 19960069832 A KR19960069832 A KR 19960069832A KR 19980050984 A KR19980050984 A KR 19980050984A
Authority
KR
South Korea
Prior art keywords
air conditioner
compressor
circuit structure
condenser
electromotive force
Prior art date
Application number
KR1019960069832A
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Korean (ko)
Inventor
노석영
Original Assignee
김영귀
기아자동차 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 김영귀, 기아자동차 주식회사 filed Critical 김영귀
Priority to KR1019960069832A priority Critical patent/KR19980050984A/en
Publication of KR19980050984A publication Critical patent/KR19980050984A/en

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Abstract

본 발명은 차량용 에어컨의 역기전력 방지 회로구조에 관한 것으로서, 전원으로부터 릴레이(R1) 연결되며 응축기(13)로부터 압축기(12)로 연결되는 회로구성을 가진 차량용 에어컨 회로구조에 있어서, 상기 응축기(13)의 쿨링팬(13a)에서 발생된 역기전력이 압축기(12)로 유입되는 것을 방지하도록 응축기(13)로부터 압축기(12)로 연결되는 회로 중간에 별도의 릴레이(R2)를 설치하여 구성되는 것이다.The present invention relates to a circuit structure for preventing back electromotive force of an air conditioner for a vehicle. In the air conditioner circuit structure for a vehicle having a circuit configuration connected to a relay (R1) from a power source and connected to a compressor (12) from the condenser (13), the condenser (13) It is configured by installing a separate relay (R2) in the middle of the circuit connected from the condenser 13 to the compressor 12 to prevent the back electromotive force generated in the cooling fan (13a) of the compressor 12.

Description

차량용 에어컨의 역기전력 방지 회로구조Back EMF prevention circuit structure of vehicle air conditioner

본 발명은 차량용 에어컨의 역기전력 방지 회로구조에 관한 것으로서, 특히 에어컨 릴레이를 추가로 구성하여 쿨링팬에서 발생되는 역기전력을 차단시킴으로써 압축기의 손상을 방지하도록 한 차량용 에어컨의 역기전력 방지 회로구조에 관한 것이다.The present invention relates to a back electromotive force prevention circuit structure of a vehicle air conditioner, and more particularly, to a back electromotive force prevention circuit structure of a vehicle air conditioner to prevent damage to the compressor by further blocking the back electromotive force generated in the cooling fan by configuring the air conditioner relay.

일반적으로 에어컨이란 에어 컨디셔너(Air Conditioner)를 말하며 공기조화장치를 뜻하는 바, 통상 냉방장치를 지칭할 때 사용된다. 이러한 차량용 에어컨은 냉매를 강제 순환시켜서 이 냉매가 응축 액화되고, 다시 기화되는 현상을 이용하여 냉풍을 얻게한 구성으로 되어있다.In general, an air conditioner refers to an air conditioner and refers to an air conditioner, and is generally used when referring to an air conditioner. Such an air conditioner for a vehicle has a configuration in which cold air is obtained by forcibly circulating a refrigerant to condense and liquefy the refrigerant.

즉, 엔진에 의해 구동되며 도 1에 도시한 바와 같이 액체의 냉매가 기체의 냉매로 변화되는 증발기(11 : evaporator)에서 저압기체로 된 냉매를 고압으로 압축하는 작용을 하는 압축기(12 : Compressor)와, 상기 압축기(12)에서 공급된 기체냉매의 열을 대기중으로 방출시켜 액체냉매로 만드는 일종의 방열기인 응축기(13 : Condenser), 그리고 상기 응축기(13)에서 공급된 냉매를 저장도 하며 완전한 액체냉매를 팽창밸브로 보내주는 리시버드라이어(14 : Receiver Drier), 상기 리시버드라이어(14)에서 보내진 고압의 냉매를 증발기에 보내기 전에 증발하기 쉬운 상태의 저압으로 감압하는 작용과 냉매의 유량을 조절하는 역할을 하는 팽창밸브(15) 등으로 구성된다.That is, a compressor (12: Compressor) is driven by the engine and acts to compress the low-pressure gas refrigerant to a high pressure in the evaporator (11) in which the liquid refrigerant is changed to the gas refrigerant as shown in FIG. And a condenser (13), which is a type of radiator for discharging heat of the gas refrigerant supplied from the compressor (12) into the atmosphere and making it into a liquid refrigerant, and also storing the refrigerant supplied from the condenser (13). Receiver Drier (14: Receiver Drier) for sending the to the expansion valve, the pressure of the high-pressure refrigerant sent from the receiver dryer 14 to reduce the pressure to a low pressure easy to evaporate before sending to the evaporator and serves to adjust the flow rate of the refrigerant It consists of an expansion valve 15 or the like.

상기와 같은 구성의 차량용 에어컨의 온·오프시에는 도 3에 종래 회로구조를 도시한 바와 같이 A부에 응축기(13)에 형성된 쿨링팬(13a) 모터에서 순간적으로 역기전력이 발생하게 되어 압축기(12)에 영향을 미치게 된다.When the vehicle air conditioner is configured to be on or off as described above, as shown in the conventional circuit structure in FIG. 3, the counter electromotive force is instantaneously generated in the cooling fan 13a motor formed in the condenser 13 in the A part. ) Will be affected.

즉 쿨링팬(13a)을 회전시키는 모터로부터 발생된 역기전력이 회로에서 A 부위에 발생되고 이러한 역기전력이 압축기(12)에 전달되어 압축기(12)의 수명이 단축된다는 문제점이 발생되었다.That is, the back electromotive force generated from the motor that rotates the cooling fan 13a is generated in the A portion in the circuit, and such a back electromotive force is transmitted to the compressor 12, which shortens the life of the compressor 12.

본 발명은 상기한 문제점을 감안하여 안출된 것으로서, 본 발명의 목적은 에어컨 제어회로에서 응축기(13)의 쿨링팬(13a) 모터에서 역기전력이 발생하는 것을 방지하여 압축기의 수명감소를 초래하지 않도록 한 차량용 에어컨의 역기전력 방지 회로구조를 제공하는 데 있다.The present invention has been made in view of the above problems, and an object of the present invention is to prevent the occurrence of back electromotive force in the cooling fan 13a motor of the condenser 13 in the air conditioner control circuit so as not to reduce the life of the compressor. The present invention provides a circuit structure for preventing counter electromotive force of a vehicle air conditioner.

도 1은 차량용 에어컨의 구성을 간략 도시한 예시도,1 is an exemplary view briefly showing a configuration of a vehicle air conditioner;

도 2는 본 발명의 회로구성도,2 is a circuit diagram of the present invention;

도 3은 종래의 회로구성도.3 is a circuit configuration diagram according to the related art.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

11 : 증발기 12 : 압축기11: evaporator 12: compressor

13 : 응축기 13a : 쿨링팬13: condenser 13a: cooling fan

14 : 리시버드라이어 15 : 팽창밸브14 receiver dryer 15 expansion valve

R1, R2 : 릴레이R1, R2: relay

상기한 목적을 이루기 위하여 본 발명은 전원으로부터 릴레이(R1) 연결되며 응축기(13)로부터 압축기(12)로 연결되는 회로구성을 가진 차량용 에어컨 회로구조에 있어서, 상기 응축기(13)의 쿨링팬(13a)에서 발생된 역기전력이 압축기(12)로 유입되는 것을 방지하도록 응축기(13)로부터 압축기(12)로 연결되는 회로 중간에 별도의 릴레이(R2)를 설치하여 구성되는 것을 특징으로 하는 차량용 에어컨의 역기전력 방지 회로구조를 제공한다.In order to achieve the above object, the present invention provides a cooling fan 13a of the condenser 13 in a vehicle air conditioner circuit structure having a circuit structure connected from a power supply to a relay R1 and connected from a condenser 13 to a compressor 12. Back electromotive force of the air conditioner for a vehicle, characterized in that by installing a separate relay (R2) in the middle of the circuit connected to the compressor 12 from the condenser 13 to prevent the back electromotive force generated in the compressor 12 Provides a prevention circuit structure.

이하 첨부된 예시도면을 참조하여 본 발명의 바람직한 실시예를 보다 상세히 설명하면 다음과 같다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 2는 본 발명의 회로구성도로서, 본 발명은 응축기(13)로부터 압축기(12)로 연결되는 회로 중간에 별도의 릴레이(R2)를 설치하여 구성되는 것이다.Figure 2 is a circuit diagram of the present invention, the present invention is configured by installing a separate relay (R2) in the middle of the circuit connected from the condenser (13) to the compressor (12).

이에 따라 에어컨 스위치의 오프시 FATC 유니트에서 역기전력이 에어컨 릴레이(R2) 회로를 통과하기 전에 릴레이 여자단을 차단시켜 압축기(12)로 역기전력이 유입되는 것을 차단하게 된다.Accordingly, when the air conditioner switch is turned off, the counter electromotive force is cut off from the FATC unit before passing through the air conditioner relay (R2) circuit, thereby preventing the back electromotive force from flowing into the compressor 12.

이상과 같이 본 발명은 응축기의 쿨링팬에서 발생된 역기전력이 압축기(12)로 유입되는 것을 방지하게 되어 압축기의 수명이 단축되는 것을 방지할 수 있다.As described above, the present invention prevents back electromotive force generated from the cooling fan of the condenser from being introduced into the compressor 12, thereby preventing the life of the compressor from being shortened.

Claims (1)

전원으로부터 릴레이(R1) 연결되며 응축기(13)로부터 압축기(12)로 연결되는 회로구성을 가진 차량용 에어컨 회로구조에 있어서, 상기 응축기(13)의 쿨링팬(13a)에서 발생된 역기전력이 압축기(12)로 유입되는 것을 방지하도록 응축기(13)로부터 압축기(12)로 연결되는 회로 중간에 별도의 릴레이(R2)를 설치하여 구성되는 것을 특징으로 하는 차량용 에어컨의 역기전력 방지 회로구조.In a vehicle air conditioner circuit structure having a circuit structure connected from a power supply to a relay R1 and connected from a condenser 13 to a compressor 12, the counter electromotive force generated in the cooling fan 13a of the condenser 13 is compressed by the compressor 12. The reverse electromotive force prevention circuit structure of a vehicle air conditioner, characterized in that configured to install a separate relay (R2) in the middle of the circuit connected from the condenser (13) to the compressor (12) to prevent the flow into.
KR1019960069832A 1996-12-21 1996-12-21 Back EMF prevention circuit structure of vehicle air conditioner KR19980050984A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019960069832A KR19980050984A (en) 1996-12-21 1996-12-21 Back EMF prevention circuit structure of vehicle air conditioner

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Application Number Priority Date Filing Date Title
KR1019960069832A KR19980050984A (en) 1996-12-21 1996-12-21 Back EMF prevention circuit structure of vehicle air conditioner

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100748524B1 (en) * 2005-04-22 2007-08-13 엘지전자 주식회사 Fan motot driving apparatus for airconditioner

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100748524B1 (en) * 2005-04-22 2007-08-13 엘지전자 주식회사 Fan motot driving apparatus for airconditioner

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