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Vehicular air-conditioning device

A technology for air conditioners and vehicles, which is applied to vehicle energy storage, vehicle components, battery/fuel cell control devices, etc. Effect

Active Publication Date: 2020-05-01
DENSO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] However, in the above-mentioned prior art, since heat is stored in the battery itself, heat cannot be stored beyond the heat capacity of the battery, and there is a limit to the amount of stored heat.
Therefore, there is a problem that there is a limit to energy saving

Method used

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  • Vehicular air-conditioning device
  • Vehicular air-conditioning device
  • Vehicular air-conditioning device

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0058] Hereinafter, embodiment will be described based on drawings. Figure 1~2 The illustrated vehicle air conditioner 1 is an air conditioner that adjusts a vehicle interior space (in other words, an air-conditioned space) to an appropriate temperature. The vehicle air conditioner 1 has a refrigeration cycle device 10 . In the present embodiment, the refrigeration cycle device 10 is mounted on a hybrid vehicle that obtains driving force for vehicle travel from an engine (in other words, an internal combustion engine) and a running motor (in other words, an electric motor).

[0059] The hybrid vehicle according to the present embodiment is configured as a plug-in hybrid vehicle capable of supplying electric power supplied from an external power supply (in other words, a commercial power supply) to a battery mounted on the vehicle (in other words, an on-board battery) when the vehicle is parked. Charge. As the battery, for example, a lithium ion battery can be used.

[0060...

no. 2 approach

[0257] In the above-mentioned embodiment, the charger 36 is arranged in the battery flow path 30c, but in this embodiment, as Figure 14 As shown, the charger 36 is arranged in the device flow path 30d. Also in this embodiment, the same operations and effects as those of the above-described embodiment can be achieved.

[0258] In this embodiment, when the battery 33 is charged by an external power source, when the temperature of the low-temperature cooling water circuit 30 is lower than the cut-off temperature T4, the first three-way valve 38 and the second three-way valve 39 switch the low-temperature cooling water circuit 30 The flow of the cooling water in the middle, so that the cooling water circulates between the charger 36 and the battery 33, when the temperature of the low-temperature cooling water circuit 30 is above the cut-off temperature T4, the first three-way valve 38 and the second three-way The valve 39 switches the flow of cooling water in the low-temperature...

no. 3 approach

[0261] In this embodiment, if Figure 15 As shown, a heat accumulator 85 is arranged in the cooling water circuit. The heat accumulator 85 is a heat storage unit that stores heat of the cooling water. The heat capacity per unit volume of the heat accumulator 85 is greater than the heat capacity per unit volume of the cooling water.

[0262] The heat accumulator 85 is arranged in the low-temperature side main flow path 30a, the battery flow path 30c, and the equipment flow path 30d. The heat accumulator 85 may be arranged in at least one flow path of the low-temperature side main flow path 30a, the battery flow path 30c, and the equipment flow path 30d.

[0263] In other words, the heat accumulator 85 is arranged at the part where the cooling water in the low-temperature cooling water circuit 30 circulates between the battery 33 and the charger 36 and the cooling water cooling evaporator 17, and where the cooling water circulates between the battery 33 and the charger 36 and ...

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Abstract

This vehicular air-conditioning device is provided with: mode switching units (18, 54, 80) which switch modes between an air heating mode in which air is heated by a heating part (22) and an air cooling mode in which air is cooled in an air cooling part (14) by dissipating heat from a refrigerant to the outside air by means of heat-dissipating parts (23, 81); a battery (33) which supplies power toa driving-motor of a vehicle, emits heat while being charged, and is cooled by a heat medium; a heat medium circuit (30) which circulates the heat medium to a heat medium-cooling heat exchanger (17);and heat medium flow-switching units (38, 39) which, when the battery (33) is being charged by external power, switch the flow of the heat medium in the heat medium circuit (30) so that the heat medium circulates between the battery (33) and the heat medium-cooling heat exchanger (17).

Description

[0001] Cross-reference of related applications [0002] This application is based on Japanese Patent Application No. 2017-166627 filed on August 31, 2017, and the content of the invention is incorporated into this application by reference. technical field [0003] The invention relates to an air conditioning device for a vehicle. Background technique [0004] Conventionally, Patent Document 1 describes a battery temperature control device that performs air conditioning (that is, cooling and heating) and battery temperature control. [0005] The battery temperature adjustment device has a compressor, an indoor condenser, an outdoor condenser, an evaporator, an expansion valve, a low-temperature heat exchanger, and a battery temperature adjustment unit. In addition, when the battery is charged from outside the vehicle, the battery is waste-heated by electric power received from outside the vehicle, and the heat accumulated in the battery is used for heating or the like. [0...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60H1/22B60L53/00B60L50/40B60L55/00B60L50/50B60L58/00F28D20/00
CPCB60H1/08B60H1/22B60L50/40B60L50/50B60L53/00B60L55/00B60L58/00F28D20/00Y02T10/88Y02T10/70Y02T10/7072Y02T90/14
Inventor 加藤吉毅
Owner DENSO CORP
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