JPS5822660U

JPS5822660U - Refrigeration equipment

Info

Publication number: JPS5822660U
Application number: JP11645581U
Authority: JP
Inventors: 岩瀬　進
Original assignee: 三菱電機株式会社
Priority date: 1981-08-04
Filing date: 1981-08-04
Publication date: 1983-02-12

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 the drawing]

第１図はこの考案の冷凍装置の一実施例における冷凍サ
イクル図、第２図は同上冷凍サイクルにおける制御回路
のシーケンス図、第３図は同上冷凍装置における庫内温
度と低圧圧力の関係を示す図である。１・・・・・・圧縮機、２・・・・・・凝縮器、３・・
・・・・電磁弁、−４・・・・・・絞り装置、５・・・
・・・蒸発器、６・・・・・・低圧圧力開閉器Ａ、？・
・・・・・制御器、１０ａ、１０ｂ・・・・・・始動用
スイッチ、１１・・・・・・安全保護回路、１２・・聞
電磁開閉器、１３・・・・・・限時継電器、１４．１５
・・・・・・補助継電器、１６・・・・・・電動機、１
７・・・・・・庫内温度調節器接点、１８・・・・・・
低圧圧力側開閉器Ｂ０なお、図中同一符号は同一または
相当部分を示す。Figure 1 is a refrigeration cycle diagram in one embodiment of the refrigeration system of this invention, Figure 2 is a sequence diagram of the control circuit in the refrigeration cycle, and Figure 3 is the relationship between internal temperature and low pressure in the refrigeration system. It is a diagram. 1... Compressor, 2... Condenser, 3...
...Solenoid valve, -4... Throttle device, 5...
...Evaporator, 6...Low pressure switch A, ?・
...Controller, 10a, 10b...Starting switch, 11...Safety protection circuit, 12...Electromagnetic switch, 13...Time-limiting relay, 14.15
...Auxiliary relay, 16...Electric motor, 1
7...Interior temperature controller contact, 18...
Low pressure pressure side switch B0 Note that the same reference numerals in the drawings indicate the same or corresponding parts.

Claims

[Scope of utility model registration request]

A refrigeration cycle formed by a compressor, a condenser, an evaporator, a throttle device, and piping that communicates them, a solenoid valve installed in this refrigeration cycle to supply and cut off refrigerant to the refrigeration cycle, and a predetermined operation of the compressor. When the suction side pressure rises to the predetermined pressure set in the low pressure switch mentioned above while the compressor is stopped due to duty cycle operation that automatically stops for a predetermined time at time intervals, duty cycle operation is canceled and the compressor returns to normal cooling. A refrigeration system comprising a control means for returning to an operating state.