Power supply device for vehicle
First Claim
1. A power supply device adapted to be disposed in a vehicle having a battery, the power supply device comprising:
- a refrigeration cycle for air conditioning that includes a compressor, a condenser, an expansion valve, and an evaporator;
a motor that is configured to drive the compressor;
an inverter-integrated charger that is configured to selectively control operation of the motor using electrical power of the battery and charge of the battery with external power;
a heat exchanger unit that is disposed in the refrigeration cycle and configured to cool a cooling-necessary part of the inverter-integrated charger using refrigerant in the refrigeration cycle, wherein the heat exchanger unit is a refrigerant reservoir portion in which liquid-phase refrigerant in the refrigeration cycle is stored;
a controller that is configured to control operation of the inverter-integrated charger and that includes a determining means for determining whether the cooling-necessary part needs to be cooled, wherein when a traveling function of the vehicle is stopped and the battery is charged with the external power, the controller makes the inverter-integrated charger serve as;
a charger to perform the charge of the battery, oran inverter to control the operation of the motor, thereby driving the compressor, upon determination that the cooling-necessary part needs to be cooled by the determining means; and
a second level detecting unit that is configured to detect a level of liquid-phase refrigerant stored in the refrigerant reservoir portion, wherein the controller stops the drive of the compressor and makes the inverter-integrated charger serve as the charger to perform the charge of the battery when the level of liquid-phase refrigerant becomes equal to or higher than a second predetermined level.
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Accused Products
Abstract
A power supply device includes a refrigeration cycle having a compressor, a motor, an inverter-integrated charger, a heat exchanger unit, and a controller having a determining unit. The inverter-integrated charger selectively controls operation of the motor using electrical power of a battery and charge of the battery with external power. The heat exchanger unit cools a cooling-necessary part of the inverter-integrated charger using refrigerant in the refrigeration cycle. When the vehicle is stopped and the battery is charged with the external power, the controller makes the inverter-integrated charger serve as: a charger to perform the charge of the battery; or an inverter to control the operation of the motor, thereby driving the compressor, upon determination that the cooling-necessary part needs to be cooled by the determining unit.
35 Citations
20 Claims
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1. A power supply device adapted to be disposed in a vehicle having a battery, the power supply device comprising:
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a refrigeration cycle for air conditioning that includes a compressor, a condenser, an expansion valve, and an evaporator; a motor that is configured to drive the compressor; an inverter-integrated charger that is configured to selectively control operation of the motor using electrical power of the battery and charge of the battery with external power; a heat exchanger unit that is disposed in the refrigeration cycle and configured to cool a cooling-necessary part of the inverter-integrated charger using refrigerant in the refrigeration cycle, wherein the heat exchanger unit is a refrigerant reservoir portion in which liquid-phase refrigerant in the refrigeration cycle is stored; a controller that is configured to control operation of the inverter-integrated charger and that includes a determining means for determining whether the cooling-necessary part needs to be cooled, wherein when a traveling function of the vehicle is stopped and the battery is charged with the external power, the controller makes the inverter-integrated charger serve as; a charger to perform the charge of the battery, or an inverter to control the operation of the motor, thereby driving the compressor, upon determination that the cooling-necessary part needs to be cooled by the determining means; and a second level detecting unit that is configured to detect a level of liquid-phase refrigerant stored in the refrigerant reservoir portion, wherein the controller stops the drive of the compressor and makes the inverter-integrated charger serve as the charger to perform the charge of the battery when the level of liquid-phase refrigerant becomes equal to or higher than a second predetermined level. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A power supply device adapted to be disposed in a vehicle having a battery, the power supply device comprising:
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a refrigeration cycle for air conditioning that includes a compressor, a condenser, an expansion valve, and an evaporator; a motor that is configured to drive the compressor; an inverter-integrated charger that is configured to selectively control operation of the motor using electrical power of the battery and charge of the battery with external power; a heat exchanger unit that is disposed in the refrigeration cycle and configured to cool a cooling-necessary part of the inverter-integrated charger using refrigerant in the refrigeration cycle; a controller that is configured to control operation of the inverter-integrated charger and that includes a determining means for determining whether the cooling-necessary part needs to be cooled, wherein when a traveling function of the vehicle is stopped and the battery is charged with the external power, the controller makes the inverter-integrated charger serve as; a charger to perform the charge of the battery, or an inverter to control the operation of the motor, thereby driving the compressor, upon determination that the cooling-necessary part needs to be cooled by the determining means; a receiving part that receives dew condensation water generated when the inverter-integrated charger is cooled by the heat exchanger unit; and a heating unit that is configured to evaporate dew condensation water stored in the receiving part. - View Dependent Claims (17, 18, 19, 20)
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Specification