JPS6089556U

JPS6089556U - Refrigeration cycle equipment

Info

Publication number: JPS6089556U
Application number: JP18258683U
Authority: JP
Inventors: 久保　道夫
Original assignee: 株式会社東芝
Priority date: 1983-11-26
Filing date: 1983-11-26
Publication date: 1985-06-19

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図は従来装置およびこの考案の一実施例を示す構成
図、第２図は第１図における冷凍サイクルの構成図、第
３図は従来装置およびこの考案の一実施例における除霜
解除用サーモスタットの取付は位置を示す構成図、第４
図は従来装置における制御回路の構成図、第５図は従来
装置の動作を説明するための図、第６図はこの考案の一
実施例における制御回路の構成図、第７図は同実施例の
動作を説明するための図である。１・・・圧縮機、２・・・凝縮器、４・・・蒸発器、５
・・・ホットガスサイクル、６・・・電磁開閉弁、１０
・・・除霜解除用サーモスタット（温度検知器）、３０
・・・過電流継電器。Fig. 1 is a block diagram showing a conventional device and an embodiment of this invention, Fig. 2 is a block diagram of the refrigeration cycle in Fig. 1, and Fig. 3 is a defrosting release diagram of a conventional device and an embodiment of this invention. For the installation of the thermostat, please refer to the configuration diagram showing the position, No. 4.
The figure is a block diagram of a control circuit in a conventional device, FIG. 5 is a diagram for explaining the operation of the conventional device, FIG. 6 is a block diagram of a control circuit in an embodiment of this invention, and FIG. 7 is a diagram of the same embodiment. FIG. 1... Compressor, 2... Condenser, 4... Evaporator, 5
...Hot gas cycle, 6...Solenoid on-off valve, 10
...Defrost release thermostat (temperature detector), 30
...Overcurrent relay.

Claims

[Scope of utility model registration request]

A refrigeration cycle in which a compressor, a condenser, a pressure reducing device, an evaporator, etc. are connected in sequence, and has a hot gas cycle between the refrigerant discharge side of the compressor and the refrigerant suction side of the evaporator;
an electromagnetic on-off valve provided in the hot gas cycle; a means for opening the on-off valve periodically or as needed;
It is characterized by comprising a temperature detector that closes the on-off valve when the temperature of the evaporator exceeds a certain value, and means that closes the on-off valve when the motor current of the compressor becomes above a certain value. Refrigeration cycle equipment.