JPS60182661U

JPS60182661U - Cooling system

Info

Publication number: JPS60182661U
Application number: JP7115584U
Authority: JP
Inventors: 憲治木村; 八島　英雄
Original assignee: シャープ株式会社
Priority date: 1984-05-15
Filing date: 1984-05-15
Publication date: 1985-12-04

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図は本考案冷却装置の第一実施例を示す冷媒回路図
であり、図中の実線矢印は通常冷却サイ　　゛クルを、
破線矢印は除霜サイクルを示し、第２図は第一実施例を
適用した冷凍冷蔵庫の断面図、第３図は本考案の第二実
施例の要部回路図、第４図は本考案の第三実施例の冷媒
回路図、第５図は従来冷却装置の冷媒回路図、第６図は
従来の冷凍冷蔵庫の断面図である。１：圧縮機、２：凝縮器、３Ａ：第一減圧装置、３Ｂ：
第二減圧装置、４Ａ：第一蒸発器、４Ｂ＝第二第二器、
５：ファン、１０：逆止弁、１１Ａ：第一バイパス管、
１１Ｂ：第二バイパス管、１２Ａ：第一切換弁、１２Ｂ
：第二切換弁、１３：霜センサ−，１４：制御装置。Fig. 1 is a refrigerant circuit diagram showing the first embodiment of the cooling device of the present invention, and the solid arrows in the figure indicate the normal cooling cycle.
The broken line arrow indicates the defrosting cycle, Fig. 2 is a cross-sectional view of the refrigerator-freezer to which the first embodiment is applied, Fig. 3 is a circuit diagram of the main part of the second embodiment of the present invention, and Fig. 4 is the main part circuit diagram of the second embodiment of the present invention. A refrigerant circuit diagram of the third embodiment, FIG. 5 is a refrigerant circuit diagram of a conventional cooling device, and FIG. 6 is a sectional view of a conventional refrigerator-freezer. 1: Compressor, 2: Condenser, 3A: First pressure reducing device, 3B:
Second pressure reducing device, 4A: first evaporator, 4B = second second vessel,
5: Fan, 10: Check valve, 11A: First bypass pipe,
11B: Second bypass pipe, 12A: First switching valve, 12B
: second switching valve, 13: frost sensor, 14: control device.

Claims

[Scope of utility model registration request]

In the cooling device, a condenser is connected to the outlet side of the compressor, a first pressure reducing device is connected to the outlet side of the condenser, and a first evaporator is connected to the outlet side of the first pressure reducing device. A first bypass pipe is provided that short-circuits the first bypass pipe and the outlet side of the first pressure reducing device, and a first switching valve is provided that selectively communicates with one of the first bypass pipe and the inlet side of the condenser. , a second bypass pipe is interposed between the outlet side of the first evaporator and the inlet side of the compressor, and a second pressure reducing device connected to the inlet side of the second bypass pipe; and the second pressure reducing device. and a second evaporator interposed between the outlet side of the second bypass pipe and the outlet side of the second bypass pipe, and select one of the second bypass pipe and the inlet side of the second pressure reducing device. A second switching valve is provided to conduct electricity, and upon detecting frost formation on the first evaporator, the first switching valve connects the first bypass pipe, and the second switching valve connects the second pressure reducing device. A cooling device characterized by being provided with a control device for controlling the cooling device.