Air conditioner for vehicle with heat pump cycle
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B67D-007/80
B60H-001/00
F25B-006/04
F25B-041/04
F25B-047/02
B60H-001/32
출원번호
US-0803812
(2010-07-07)
등록번호
US-8966928
(2015-03-03)
우선권정보
JP-2009-161455 (2009-07-08)
발명자
/ 주소
Oomura, Mitsuyo
Hayashi, Hiroyuki
Takeda, Yukihiko
Ichishi, Yoshinori
출원인 / 주소
Denso Corporation
대리인 / 주소
Harness, Dickey & Pierce, PLC
인용정보
피인용 횟수 :
1인용 특허 :
3
초록▼
An air conditioner for a vehicle includes a vapor compression refrigeration cycle switchable between a heat pump cycle and a cooler cycle, a heat core configured to heat air to be blown into a vehicle compartment by using coolant of an engine of the vehicle as a heat source, and a controller configu
An air conditioner for a vehicle includes a vapor compression refrigeration cycle switchable between a heat pump cycle and a cooler cycle, a heat core configured to heat air to be blown into a vehicle compartment by using coolant of an engine of the vehicle as a heat source, and a controller configured to control operation of the vapor compression refrigeration cycle. The controller controls the vapor compression refrigeration cycle to be operated as the cooler cycle so as to perform a defrosting control of the outdoor heat exchanger, and outputs an operation request signal to the engine, when the controller determines that the outdoor heat exchanger is frosted.
대표청구항▼
1. An air conditioner for a vehicle, comprising: a vapor compression refrigeration cycle including an outdoor heat exchanger configured to perform heat exchange between refrigerant and air outside of a vehicle compartment, and an indoor heat exchanger configured to perform heat exchange between the
1. An air conditioner for a vehicle, comprising: a vapor compression refrigeration cycle including an outdoor heat exchanger configured to perform heat exchange between refrigerant and air outside of a vehicle compartment, and an indoor heat exchanger configured to perform heat exchange between the refrigerant and air to be blown into the vehicle compartment, the vapor compression refrigerant cycle being configured to be switchable between a heat pump cycle in which a heat amount absorbed from the outdoor heat exchanger is radiated to the indoor heat exchanger to heat air to be blown into the vehicle compartment, and a cooler cycle in which a heat amount absorbed from the indoor heat exchanger is radiated to the outdoor heat exchanger;a heat core configured to heat air to be blown into the vehicle compartment by using coolant of an engine of the vehicle as a heat source; anda controller configured to control operation of the vapor compression refrigeration cycle, whereinthe controller controls the vapor compression refrigeration cycle to be operated as the cooler cycle so as to perform a defrosting control of the outdoor heat exchanger, and outputs an operation request signal to the engine to cause the engine to be operated, when the controller determines that the outdoor heat exchanger is frosted in a state where the engine is stopped; andthe controller performs the defrosting control of the outdoor heat exchanger when a temperature of the refrigerant flowing through the outdoor heat exchanger is lower than a determination value in the heat pump cycle, andthe controller sets the determination value at a first temperature when the engine is operating, and sets the determination value at a second temperature lower than the first temperature when the engine is stopped. 2. An air conditioner for a vehicle, comprising: a vapor compression refrigeration cycle including an outdoor heat exchanger configured to perform heat exchange between refrigerant and air outside of a vehicle compartment, and an indoor heat exchanger configured to perform heat exchange between the refrigerant and air to be blown into the vehicle compartment, the vapor compression refrigerant cycle being configured to be switchable between a heat pump cycle in which a heat amount absorbed from the outdoor heat exchanger is radiated to the indoor heat exchanger to heat air to be blown into the vehicle compartment, and a cooler cycle in which a heat amount absorbed from the indoor heat exchanger is radiated to the outdoor heat exchanger;a heat core configured to heat air to be blown into the vehicle compartment by using coolant of an engine of the vehicle as a heat source;a controller configured to control operation of the vapor compression refrigeration cycle;an economic switch configured to switch an economic mode by an operation of a passenger, in which a power saving of the vapor compression refrigeration cycle is preferentially performed; andan electrical heater which generates heat to heat air to be blown into the vehicle compartment, whereinthe controller controls the vapor compression refrigeration cycle to be operated as the cooler cycle so as to perform a defrosting control of the outdoor heat exchanger, and outputs an operation request signal to the engine to cause the engine to be operated, when the controller determines that the outdoor heat exchanger is frosted in a state where the engine is stopped; andthe controller outputs the operation request signal to the engine and causes the electrical heater to be operated when the controller determines that the outdoor heat exchanger is frosted in a case where the economic mode is set by the economic switch. 3. An air conditioner for a vehicle, comprising: a vapor compression refrigeration cycle including an outdoor heat exchanger configured to perform heat exchange between refrigerant and air outside of a vehicle compartment, and an indoor heat exchanger configured to perform heat exchange between the refrigerant and air to be blown into the vehicle compartment, the vapor compression refrigerant cycle being configured to be switchable between a heat pump cycle in which a heat amount absorbed from the outdoor heat exchanger is radiated to the indoor heat exchanger to heat air to be blown into the vehicle compartment, and a cooler cycle in which a heat amount absorbed from the indoor heat exchanger is radiated to the outdoor heat exchanger;a heat core configured to heat air to be blown into the vehicle compartment by using coolant of an engine of the vehicle as a heat source; anda controller configured to control operation of the vapor compression refrigeration cycle, whereinthe controller controls the vapor compression refrigeration cycle to be operated as the cooler cycle so as to perform a defrosting control of the outdoor heat exchanger, and outputs an operation request signal to the engine to cause the engine to be operated, when the controller determines that the outdoor heat exchanger is frosted in a state where the engine is stopped; andwhen the controller performs the defrosting control, a defrosting time for performing the defrosting control is set at a first predetermined time when a temperature of the outside air is lower than a predetermined temperature, and is set at a second predetermined time that is shorter than the first predetermined time when the temperature of the outside air is higher than the predetermined temperature. 4. An air conditioner for a vehicle, comprising: a vapor compression refrigeration cycle including an outdoor heat exchanger configured to perform heat exchange between refrigerant and air outside of a vehicle compartment, and an indoor heat exchanger configured to perform heat exchange between the refrigerant and air to be blown into the vehicle compartment, the vapor compression refrigerant cycle being configured to be switchable between a heat pump cycle in which a heat amount absorbed from the outdoor heat exchanger is radiated to the indoor heat exchanger to heat air to be blown into the vehicle compartment, and a cooler cycle in which a heat amount absorbed from the indoor heat exchanger is radiated to the outdoor heat exchanger;a heat core configured to heat air to be blown into the vehicle compartment by using coolant of an engine of the vehicle as a heat source;a controller configured to control operation of the vapor compression refrigeration cycle;an electrical heater which generates heat to heat air to be blown into the vehicle compartment, whereinthe controller controls the vapor compression refrigeration cycle to be operated as the cooler cycle so as to perform a defrosting control of the outdoor heat exchanger, and outputs an operation request signal to the engine to cause the engine to be operated, when the controller determines that the outdoor heat exchanger is frosted in a state where the engine is stopped; andthe controller outputs the operation request signal to the engine when a room temperature of the vehicle compartment is lower than a predetermined temperature so that a heating feeling given to a passenger is determined to be lowered in a case where the controller determines that the outdoor heat exchanger is frosted, andthe controller does not output the operation request signal to the engine and causes the electrical heater to be operated, when the room temperature of the vehicle compartment is higher than the predetermined temperature so that the heating feeling given to a passenger is determined to be higher, even in a case where the controller determines that the outdoor heat exchanger is frosted.
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이 특허에 인용된 특허 (3)
Kunio Iritani JP; Shigeo Numazawa JP; Kenichi Fujiwara JP; Yasushi Yamanaka JP; Akira Isaji JP; Nobunao Suzuki JP, Automotive airconditioner having condenser and evaporator provided within air duct.
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