KR970034575A

KR970034575A - Refrigerant shortage warning device for vehicle air conditioning system

Info

Publication number: KR970034575A
Application number: KR1019950059730A
Authority: KR
Inventors: 주용운
Original assignee: 전성원; 현대자동차 주식회사
Priority date: 1995-12-27
Filing date: 1995-12-27
Publication date: 1997-07-22

Abstract

본 발명은 냉매의 압력이 일정 기준치 이하로 떨어질 경우 이를 운전자에게 경고함과 동시에 냉매를 보충하도록 유도하는 것은 물론, 에어컨의 성능을 최상으로 유지할 수 있도록 된, 차량용 공기조화시스템의 냉매부족 경보장치에 관한 것으로, 압축기(10)에 응축기(20)를 연결하고, 응축기(20)에 팽창밸브(30)를 연결하며, 또한 팽창밸브(30)에 증발기(40)를 연결하되, 증발기(40)를 상기 압축기(10)에 연결하여 냉동 사이클을 구성하며, 아울러 압축기(10), 응축기(20), 팽창밸브(30), 증발기(40)의 각 출구측 관로에 압력감지센서(50)(60)(70)(80)를 연결하고, 이들 압력감지센서(50)(60)(70)(80)를 E. C. U(90)에 연결하여, 압축기(10)를 통과하는 냉매가스의 압력과 각 출구관로의 냉매가스의 압력을 상호 비교할 수 있도록 하며, E. C. U(90)에 경고등(100)을 연결하여 E. C. U(90)로부터 비교된 값이 기준값보다 적을 경우 경고등(100)을 점등시킬 수 있도록 된 것이다.The present invention is to warn the driver when the pressure of the refrigerant drops below a certain threshold and to guide the refrigerant at the same time, as well as to maintain the performance of the air conditioner, the refrigerant shortage warning device for a vehicle air conditioning system To, the condenser 20 is connected to the compressor 10, the expansion valve 30 to the condenser 20, and also connected to the evaporator 40 to the expansion valve 30, the evaporator 40 It is connected to the compressor 10 to form a refrigeration cycle, and the pressure sensor 50, 60 in each outlet side conduit of the compressor 10, the condenser 20, expansion valve 30, the evaporator 40. (70) and (80), and these pressure sensors (50), (60), (70) and (80) to the EC U (90), and the pressure of the refrigerant gas passing through the compressor (10) and each outlet The pressure of the refrigerant gas in the pipe can be compared with each other, and the EC U (90) by connecting the warning light (100) to the EC U (90) If the compared value is less than the reference value to the so as to light the warning lamp (100).

Description

Refrigerant shortage warning device for vehicle air conditioning system

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 본 발명 냉매부족 경보장치의 구성도.1 is a block diagram of a refrigerant shortage alarm device of the present invention.

Claims

A pressure sensor installed at each outlet pipe through which the refrigerant is circulated to detect a pressure of the refrigerant gas; E. C. U, which is connected to the pressure sensor and compares the reference pressure value with the pressure applied from the pressure sensor; E. C. Refrigerant shortage warning device for a vehicle air conditioning system, characterized in that the warning light is connected to the U is provided when the pressure value of the refrigerant gas is below the reference.

※ Note: The disclosure is based on the initial application.