JPS635353U

JPS635353U -

Info

Publication number: JPS635353U
Application number: JP9668686U
Authority: JP
Priority date: 1986-06-26
Filing date: 1986-06-26
Publication date: 1988-01-14

Description

[Brief explanation of the drawing]

第１図はこの考案の一実施例による冷媒回路図
、第２図は第１図に示した調節計と電磁弁等との
模式的回路図、第３図はこの考案の一実施例によ
る電磁弁の動作状態図、第４図は従来の冷媒回路
図である。図において、１は圧縮機、２は凝縮器、３は膨
張弁、４は冷却器、５ａ〜５ｄは電磁弁、６ａ〜
６ｂはキヤピラリ、７は温度センサ、８は調節計
。なお、図中、同一符号は同一、又は相当部分を
示す。 Fig. 1 is a refrigerant circuit diagram according to an embodiment of this invention, Fig. 2 is a schematic circuit diagram of the controller and solenoid valve shown in Fig. 1, and Fig. 3 is an electromagnetic circuit diagram according to an embodiment of this invention. FIG. 4, which is a diagram showing the operation state of the valve, is a conventional refrigerant circuit diagram. In the figure, 1 is a compressor, 2 is a condenser, 3 is an expansion valve, 4 is a cooler, 5a-5d are electromagnetic valves, 6a-
6b is a capillary, 7 is a temperature sensor, and 8 is a controller. In addition, in the figures, the same reference numerals indicate the same or equivalent parts.

Claims

[Claims for Utility Model Registration] (1) A compressor that converts refrigerant into a high-temperature and high-pressure gas, a condenser that liquefies the refrigerant gas, an expansion valve that reduces the pressure of the liquefied refrigerant, and refrigerant from the expansion valve. and an evaporator that cools the load by vaporizing the refrigerant under low pressure, and returns the refrigerant vaporized by the evaporator to the compressor, the discharge side of the compressor and the inlet of the evaporator. a bypass capillary for the refrigerant gas that is connected to the side by bypass, a solenoid valve that opens and closes the flow path of the capillary, a temperature sensor that detects a temperature corresponding to the temperature of the load, and a temperature range of the load. and a controller that controls on/off the solenoid valve based on a preset temperature value indicating a temperature control width and a temperature detection signal input from the temperature sensor. (2) The compression type refrigeration system according to claim 1, wherein there are a plurality of combinations of the capillary and the electromagnetic valve. (3) The compression type refrigeration apparatus according to claim 1 or 2 of the utility model registration claim, characterized in that an on/off switch is provided to turn on/off between the solenoid valve and the controller.