JPS6413474U

JPS6413474U -

Info

Publication number: JPS6413474U
Application number: JP10636787U
Authority: JP
Priority date: 1987-07-13
Filing date: 1987-07-13
Publication date: 1989-01-24

Description

[Brief explanation of the drawing]

第１図はこの考案の一実施例である自動製氷機
の冷凍回路図、第２図は第１図の自動製氷機の制
御回路図、第３図は従来の自動製氷機の一例を示
す冷凍回路図、第４図は第３図の製氷板の斜視図
、第５図は第４図の側断面図、第６図は第３図の
自動製氷機の除氷装置の制御回路図である。２……蒸発器、８……圧縮機、１０……凝縮器
、１２……膨張弁、１４……ホツトガス配管、１
５……ホツトガス弁、２８……キヤピラリチユー
ブ、２９……電磁弁、３０……インジエクシヨン
配管。なお、各図中、同一符号は同一または相当
部分を示す。 Fig. 1 is a refrigeration circuit diagram of an automatic ice maker which is an embodiment of this invention, Fig. 2 is a control circuit diagram of the automatic ice maker of Fig. 1, and Fig. 3 is a refrigeration circuit diagram showing an example of a conventional automatic ice maker. Circuit diagram, FIG. 4 is a perspective view of the ice making plate shown in FIG. 3, FIG. 5 is a side sectional view of FIG. 4, and FIG. 6 is a control circuit diagram of the ice removal device of the automatic ice maker shown in FIG. 3. . 2... Evaporator, 8... Compressor, 10... Condenser, 12... Expansion valve, 14... Hot gas piping, 1
5... Hot gas valve, 28... Capillary tube, 29... Solenoid valve, 30... Injection piping. In each figure, the same reference numerals indicate the same or corresponding parts.

Claims

[Claims for Utility Model Registration] (1) A refrigeration circuit comprising a compressor, a condenser, an expansion valve, and an evaporator connected in sequence; a hot gas pipe for introducing into the evaporator and removing ice from the evaporator; and an injection pipe having one end connected between the condenser and the expansion valve and the other end connected between the evaporator and the compressor. In a refrigeration system that suppresses a temperature rise in a compressor by causing liquid refrigerant condensed in the condenser to flow into the compressor through the injection piping, the compression via the condenser and the injection piping 1. A refrigeration system, comprising: an opening/closing mechanism that controls the liquid refrigerant flowing into the compressor during a heating cycle, between the refrigerating device and the compressor. (2) The refrigeration system according to claim 1, wherein the opening/closing mechanism comprises a capillary tube serving as a throttling means for restricting the flow of the liquid refrigerant, and an on-off valve shutting off the flow of the liquid refrigerant. (3) The refrigeration system according to claim 1, wherein the opening/closing mechanism comprises an opening/closing valve that throttles the flow of liquid refrigerant and blocks the flow of liquid refrigerant.