AIR CONDITIONER

• Main Authors: NAKASAKO SUSUMU, TAKEUCHI YOSHIYUKI
• Format: Patent
• Language: English; Japanese
• Published: 06.12.2018
• Subjects: ARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING,OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODSSPACES OF VEHICLES; BLASTING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; HEATING; LIGHTING; LIQUEFACTION SOLIDIFICATION OF GASES; MANUFACTURE OR STORAGE OF ICE; MECHANICAL ENGINEERING; PERFORMING OPERATIONS; REFRIGERATION MACHINES, PLANTS OR SYSTEMS; REFRIGERATION OR COOLING; TRANSPORTING; VEHICLES IN GENERAL; WEAPONS

To provide an air conditioner capable of performing proper defrosting operation in a case where frosting occurs in an outdoor heat exchanger, to prolong a cruising distance of a vehicle.SOLUTION: A controller 90 is configured to, in heating operation, decompress refrigerant, which has passed through an indoor condenser 40, with an expansion valve 64, and then introduce the refrigerant to an outdoor heat exchanger 68 to perform heat exchange between the refrigerant and outside air. Also, the controller 90 is configured to, in defrosting operation, introduce high-temperature and high-pressure refrigerant, which has been compressed by a compressor 62, to the outdoor heat exchanger 68, and then remove frost adhering to the outdoor heat exchanger 68. Further, the controller 90 is configured to determine whether to perform the defrosting operation on the basis of electric energy necessary for the defrosting operation.SELECTED DRAWING: Figure 4 【課題】室外熱交換器に着霜が発生した場合に除霜運転を適切に行い車両の航続距離を長くすることができる空調装置を提供する。【解決手段】制御器９０は、暖房運転時には、室内コンデンサ４０を通過した冷媒を、膨張弁６４で減圧させた後に室外熱交換器６８に導入して外気との間で熱交換させる。また、制御器９０は、除霜運転時には、コンプレッサ６２によって圧縮された高温かつ高圧の冷媒を、室外熱交換器６８に導入して室外熱交換器６８に付着した霜を除去する。更に、制御器９０は、除霜運転に必要な電力量に基づいて除霜運転を行うか否かを決定する。【選択図】図４