AIR CONDITIONING DEVICE FOR VEHICLE

To suppress hammer sound in switching operation modes.SOLUTION: An air conditioning device for a vehicle includes: opening/closing sections 14a and 14b for opening and closing an air-conditioning refrigerant flow channel from a branch portion to an evaporation portion for air-conditioning, and openi...

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Bibliographische Detailangaben
Hauptverfasser:	MATSUSHIMA MOEKA, ISSHI YOSHINORI
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	ARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING,OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODSSPACES OF VEHICLES BASIC ELECTRIC ELEMENTS BLASTING COMBINED HEATING AND REFRIGERATION SYSTEMS ELECTRICITY HEAT PUMP SYSTEMS HEATING LIGHTING LIQUEFACTION SOLIDIFICATION OF GASES MANUFACTURE OR STORAGE OF ICE MECHANICAL ENGINEERING PERFORMING OPERATIONS PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY REFRIGERATION MACHINES, PLANTS OR SYSTEMS REFRIGERATION OR COOLING TRANSPORTING VEHICLES IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	To suppress hammer sound in switching operation modes.SOLUTION: An air conditioning device for a vehicle includes: opening/closing sections 14a and 14b for opening and closing an air-conditioning refrigerant flow channel from a branch portion to an evaporation portion for air-conditioning, and opening and closing a cooling refrigerant flow channel from the branch portion to a pressure reduction portion for air-conditioning; and a control section 50 for controlling an operation of the opening/closing sections so as to open the air-conditioning refrigerant flow channel when cooling of air-conditioning air is requested, close the air-conditioning refrigerant flow channel when the cooling of the air-conditioning air is not requested, open the cooling refrigerant flow channel when the cooling of a cooled object is requested, and close the cooling refrigerant flow channel when the cooling of the cooled object is not requested. The control section degrades a refrigerant discharge capacity of a compressor when the cooling of the air-conditioning air is not requested from a state in which the cooling of the air-conditioning air is requested, and the cooling of the cooled object is requested, and closes the air-conditioning refrigerant flow channel by the opening/closing sections after predetermined conditions are satisfied.SELECTED DRAWING: Figure 29 【課題】作動モード切替時のハンマー音を抑制する。【解決手段】分岐部から空調用蒸発部へ至る空調冷媒流路を開閉するとともに分岐部から空調用減圧部へ至る冷却冷媒流路を開閉する開閉部１４ａ、１４ｂと、空調用空気を冷却する要求がある場合、空調冷媒流路を開き、空調用空気を冷却する要求がない場合、空調冷媒流路を閉じ、冷却対象物を冷却する要求がある場合、冷却冷媒流路を開き、冷却対象物を冷却する要求がない場合、冷却冷媒流路を閉じるように開閉部の作動を制御する制御部５０とを備え、制御部は、空調用空気を冷却する要求があり且つ冷却対象物を冷却する要求がある状態から空調用空気を冷却する要求がなくなった場合、圧縮機の冷媒吐出能力を低下させるとともに所定条件を満たした後に開閉部で空調冷媒流路を閉じる。【選択図】図２９