PROBLEM TO BE SOLVED: To provide a refrigerator capable of inhibiting variation in defrosting and inhibiting the temperature of an evaporator from abruptly getting high excessively.SOLUTION: The refrigerator includes a compressor 3 for compressing a refrigerant, a condenser 4 for radiating the heat of the compressed refrigerant, and an evaporator 1 to which the refrigerant via the condenser 4 is supplied through an expansion valve 6 to evaporate the refrigerant, cooling a cooling box 100. Further, the refrigerator includes an electromagnetic valve 16 for supplying hot gas including the compressed refrigerant to the evaporator 1 to perform defrosting, a blower 10 for an evaporator for blowing air of the cooling box 100 to the evaporator 1, and a blower 11 for a condenser for blowing outer air to the condenser 4. Also, the refrigerator includes a defrost capability control part 160 provided in a control device 150 for controlling the compressor 3 and the electromagnetic valve 16 to control refrigerant discharge capacity of the compressor 3 such that the inclination of temperature rise representing a change in a frosted state comes close to prescribed inclination.SELECTED DRAWING: Figure 1
【課題】除霜のバラツキを抑制し、蒸発器の温度が急激に上がりすぎることを抑制できる冷凍装置を提供する。【解決手段】冷凍装置は、冷媒を圧縮する圧縮機3と、圧縮された冷媒の熱を放熱する凝縮器4と、凝縮器4を経由した冷媒が、膨張弁6を介して供給され、冷媒を蒸発させて保冷庫100を冷却する蒸発器1と、を備える。更に冷凍装置は、圧縮された冷媒を含むホットガスを、蒸発器1に供給して除霜する電磁弁16と、蒸発器1に保冷庫100の空気を送風する蒸発器用送風機10と、凝縮器4に外気を送風する凝縮器用送風機11と、を備える。また冷凍装置は、圧縮機3と電磁弁16とを制御する制御装置150に設けられ着霜状態の変化を表す温度上昇の傾きが所定の傾きに近づくように圧縮機3の冷媒吐出能力を制御する除霜能力制御部160を備える。【選択図】図1
REFRIGERATOR
冷凍装置
2017-09-21
Patent
Electronic Resource
Japanese
IPC: | F25B Kältemaschinen, Kälteanlagen oder Kälteverfahren , REFRIGERATION MACHINES, PLANTS, OR SYSTEMS / B60P Fahrzeuge zum Transport von Lasten oder zum Befördern, Tragen oder Aufnehmen besonderer Lasten oder Gegenstände , VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS / F25D REFRIGERATORS , Kühlschränke |