JPS60111436U

JPS60111436U - Defrost control circuit

Info

Publication number: JPS60111436U
Application number: JP19972283U
Authority: JP
Inventors: 孝木村; 晃藤井; 佐野　知也; 高田　輝明
Original assignee: 株式会社日立製作所
Priority date: 1983-12-30
Filing date: 1983-12-30
Publication date: 1985-07-29

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は、従来の操作回路図、第２図は、本考案の一実
施例の操作回路図、第３図は、熱交換器への着霜範囲を
示すグラフ、第４図は、外気温度と相対湿度および絶対
湿度との関係を示す線図、第５図は、−外気湿度により
、除霜運転時間および・暖房運転の長さを切換えた場合
の、それぞれの制御時間を示す説明図である。１・・・除霜指令用リレー、２・・・リレー接点、３・
・・４方弁コイル、４・・・デアオす、５用計時装置、
６・・・サーモスタット、７川デアイサ、８・・・湿度
感知作動接点、９・・・高湿度用計時装置、１ｏ・・・
低湿度用計時装置。Fig. 1 is a conventional operating circuit diagram, Fig. 2 is an operating circuit diagram of an embodiment of the present invention, Fig. 3 is a graph showing the range of frost formation on the heat exchanger, and Fig. 4 is a graph showing the range of frost formation on the heat exchanger. A diagram showing the relationship between temperature, relative humidity, and absolute humidity, and Fig. 5 is an explanatory diagram showing the respective control times when the defrosting operation time and heating operation length are changed depending on the outside air humidity. It is. 1... Relay for defrosting command, 2... Relay contact, 3...
・・4-way valve coil, 4・deaosu, timing device for 5,
6... Thermostat, 7 River deaiser, 8... Humidity sensing operation contact, 9... High humidity timing device, 1o...
Timing device for low humidity.

Claims

[Scope of utility model registration request]

The control circuit for an air-cooled heat pump refrigeration cycle with a defrosting function has a function to detect relative humidity or absolute humidity, and this function automatically switches the time setting of the command section of the defrost control circuit. Defrost control circuit.