KR940007470A

KR940007470A - Control method by detecting evaporator temperature of air conditioner

Info

Publication number: KR940007470A
Application number: KR1019920017308A
Authority: KR
Inventors: 한기원
Original assignee: 이헌조; 주식회사 금성사
Priority date: 1992-09-23
Filing date: 1992-09-23
Publication date: 1994-04-27

Abstract

본 발명은 에어콘 증발기의 온도 조건에 따른 자체진단 제어방법에 관한 것으로, 이것은 특히 증발기 내의 온도를 마이콤의 온도센서로 감지하여 증발기의 온도 조건에 따라 에어콘의 동작을 제어하도록 하므로써 콤프레서의 무리한 동작을 방지하는 데 적당하도록 한 것이다.The present invention relates to a self-diagnostic control method according to the temperature condition of the air conditioner evaporator, which in particular prevents the operation of the compressor by controlling the operation of the air conditioner according to the temperature condition of the evaporator by sensing the temperature in the evaporator temperature sensor of the microcomputer. It is to be suitable for doing.

종래의 콤프레셔 진단을 위한 구성으로서는 에어콘의 냉매 부족시 동작되는 저압력 스위치(SWi)와 과냉매시에 동작되는 고압력 스위치(SWh)를 마이콤(1)의 콤프레셔 제어 출력(Po)으로 구동되는 콤프레셔 릴레이(3)와 콤프레셔(2)에 직렬로 접속하여 에어콘의 과냉매 혹은 냉매부족 상태를 고압력 스위치(SWh)와 저압력 스위치(SW1)로 단하여 에어콘 자체를 진단 및 보관하고는 있으나 에어콘의 문제점을 겉으로 볼 때는 판단해내기 어려우므로 에어콘 자체의 결함을 내포한 상태로 동작되는 경우가 발생되었다.As a conventional compressor diagnosis configuration, a low pressure switch SWi operated when the air conditioner runs out of refrigerant and a high pressure switch SWh operated when overcooling is driven by a compressor control output Po of the microcomputer 1 ( 3) is connected to the compressor (2) in series, and the air conditioner's overcooling or refrigerant shortage status is controlled by the high pressure switch (SWh) and the low pressure switch (SW1) to diagnose and store the air conditioner itself. As it is difficult to judge, the air conditioner itself has been operated in a state that contains a defect.

본 발명은 따라서 에어콘의 증발기 온도를 마이콤의 온도센서로 감지하여 그 감지된 증발기 온도조건에 따라 에어콘의 현재 환경요소 및 결함상태를 판단 제어하도록 하여 에어콘의 콤프레셔가 무리하게 동작되는 것을 방지하도록 한것임.The present invention is to detect the evaporator temperature of the air conditioner by the temperature sensor of the microcomputer to determine and control the current environmental factors and defects of the air conditioner according to the detected evaporator temperature conditions to prevent the compressor of the air conditioner to operate excessively.

Description

Control method by detecting evaporator temperature of air conditioner

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

제2도는 본 발명에 의한 콤프레셔 및 에어콘 환경요소 진단 회로 구성도,2 is a configuration diagram of a compressor and air conditioner environmental element diagnosis circuit according to the present invention;

제3도는 본 발명에 의한 에어콘 환경요소/자체결함 판단논리 흐름도.3 is a flow chart of the air conditioner environmental element / self-decision determination according to the present invention.

Claims

After operating the compressor for a predetermined time, detecting the low pressure side temperature of the evaporator by the sensor; and determining whether the detected evaporator temperature is the first temperature section (-X ° C. or less). Stop operation and turn on the lamp indicating that the evaporator temperature is low, and if the evaporator temperature is not the first temperature section, determine whether it is the third temperature section (+ y ° C or more) and not the third temperature section. In the case of normal operation of the compressor, and when the evaporator temperature is the third temperature section, the step of stopping the compressor operation and turning on the refrigerant shortage and the indoor / outdoor air connection confirmation lamp (ON) by sensing the evaporator temperature of the air conditioner Control method.

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