JPS63101755U

JPS63101755U -

Info

Publication number: JPS63101755U
Application number: JP19674986U
Authority: JP
Priority date: 1986-12-23
Filing date: 1986-12-23
Publication date: 1988-07-02

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例に係るコンプレツサ
保護装置を備えた空気調和機の構成図、第２図は
実施例の動作を示すフローチヤート、第３図は従
来の空気調和機の構成図である。図中、１はコンプレツサ、７はアキユムレータ
、１０はコンプレツサケースヒータ、１１はアキ
ユムレータケースヒータ、１２はコンプレツサケ
ース温度センサ、１３は室外機周辺温度センサ、
１４は制御部である。 Fig. 1 is a block diagram of an air conditioner equipped with a compressor protection device according to an embodiment of the present invention, Fig. 2 is a flowchart showing the operation of the embodiment, and Fig. 3 is a block diagram of a conventional air conditioner. It is. In the figure, 1 is a compressor, 7 is an accumulator, 10 is a compressor case heater, 11 is an accumulator case heater, 12 is a compressor case temperature sensor, 13 is an outdoor unit surrounding temperature sensor,
14 is a control section.

Claims

[Scope of utility model registration request]

In an air conditioner having an accumulator upstream of a compressor in a refrigeration cycle, a first heater for heating a case of the compressor, a second heater for heating a case of the accumulator, and a case of the compressor. A first temperature sensor that detects temperature, a second temperature sensor that detects the ambient temperature of the outdoor unit, and a case temperature of the compressor detected by the first temperature sensor and a temperature detected by the second temperature sensor. The difference between the temperature and the ambient temperature of the outdoor unit is calculated, and if this difference is less than a predetermined value, the first and second heaters are energized, and if it is larger than the predetermined value, the first and second heaters are not energized. A compressor protection device for an air conditioner, comprising a control unit for stopping the compressor.