COOLING DEVICE

• Main Authors: SHIBATA YOSHITO, YAMAGAMI YUHEI, TAKANO YUKIHIRO
• Format: Patent
• Language: English; Japanese
• Published: 08.12.2016
• Subjects: BLASTING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; HEATING; LIGHTING; LIQUEFACTION SOLIDIFICATION OF GASES; MANUFACTURE OR STORAGE OF ICE; MECHANICAL ENGINEERING; REFRIGERATION MACHINES, PLANTS OR SYSTEMS; REFRIGERATION OR COOLING; WEAPONS

PROBLEM TO BE SOLVED: To provide a cooling device capable of preventing a failure of a compressor under not only a low temperature environment but also a high temperature environment with a simple device configuration.SOLUTION: A cooling device 100 comprises: a compressor 1 which compresses a coolant; a condenser 2 which condenses the coolant compressed by the compressor 1; an evaporator 4 which evaporates the coolant condensed by the condenser 2; a main flow passage 54a which has a solenoid valve 7a and is connected to a suction side of the compressor 1; an accumulator 6 which is installed on the main flow passage 54a and separates the coolant in a liquid form from the coolant in a gas form; a bypass flow passage 54b which has a solenoid valve 7b, is arranged in parallel to the main flow passage 54a and is connected to the suction side of the compressor 1; an ambient environment temperature sensor 8 which detects an ambient environment temperature; and a control section 9 which controls opening and closing of the solenoid valves 7a and 7b on the basis of the ambient environment temperature and a start-up state or a stop state of the compressor 1.SELECTED DRAWING: Figure 1 【課題】低温環境下のみならず高温環境下においても、圧縮機に生じる不具合を簡易な装置構成により防止することが可能な冷却装置を提供する。【解決手段】この冷却装置１００は、冷媒を圧縮する圧縮機１と、圧縮機１によって圧縮された冷媒を凝縮させる凝縮器２と、凝縮器２によって凝縮された冷媒を蒸発させる蒸発器４と、電磁弁７ａを有し、圧縮機１の吸入側に接続される主流路５４ａと、主流路５４ａに設けられ、気体状の冷媒から液体状の冷媒を分離するアキュムレータ６と、電磁弁７ｂを有し、主流路５４ａと並列的に設けられ、圧縮機１の吸入側に接続されるバイパス流路５４ｂと、周囲環境温度を検出する周囲環境温度センサ８と、周囲環境温度と圧縮機１の起動状態または停止状態とに基づいて、電磁弁７ａと電磁弁７ｂとを開閉する制御を行う制御部９とを備える。【選択図】図１