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Vehicle air conditioning device

A technology for air conditioning and vehicles, which is applied to electrical devices, vehicle energy storage, vehicle components, etc. It can solve problems such as malfunction, deterioration, damage, etc., and achieve the effect of eliminating or suppressing noise

Pending Publication Date: 2021-07-23
SANDEN CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] On the other hand, for example, if the battery is charged and discharged in an environment where the temperature becomes high due to self-heating due to charge and discharge, etc., the deterioration will progress, and as a result, there is a risk of malfunction and damage.

Method used

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  • Vehicle air conditioning device
  • Vehicle air conditioning device
  • Vehicle air conditioning device

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0064] Hereinafter, embodiments of the present invention will be described in detail based on the drawings. figure 1 A configuration diagram showing a vehicle air-conditioning apparatus 1 according to an embodiment of the present invention. The vehicle to which the embodiment of the present invention is applied is an electric vehicle (EV) that does not have an engine (internal combustion engine), and is powered by supplying electric power charged in a battery 55 mounted on the vehicle to a running motor (electric motor; not shown). In a driven and running vehicle, the compressor 2 described later in the vehicle air-conditioning apparatus 1 of the present invention is also driven by electric power supplied from the battery 55 .

[0065] That is, the vehicle air-conditioning apparatus 1 of the embodiment switches between the heating mode, the dehumidification and heating mode, and the dehumidification and cooling mode through the heat pump operation using the refrigerant circuit...

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Abstract

The present invention provides a heat pump-type vehicle air conditioning device that enables cooling of an object to be temperature controlled, wherein noise (abnormal noise) generated by a valve device when switching operation modes is eliminated or reduced. A control device includes: a battery cooling (only) mode in which a solenoid valve (35) is closed and heat in a cooling medium is absorbed in a cooling medium / heat medium heat exchanger (64); and a battery cooling (priority) + air conditioning mode in which the solenoid valve (35) is opened and heat is absorbed from the cooling medium by a heat absorber (9) and the cooling medium / heat medium heat exchanger (64). The control device executes, when switching from battery cooling (only) mode to battery cooling (priority) + air conditioning mode, noise suppression control in which the pressure difference between the front and rear of the solenoid valve (35) is reduced and then the solenoid valve is opened.

Description

technical field [0001] The present invention relates to a heat pump type air conditioner for air conditioning a vehicle interior. Background technique [0002] Due to the manifestation of environmental problems in recent years, vehicles such as electric vehicles and hybrid vehicles that drive a running motor with electric power supplied from a battery mounted on the vehicle have become widespread. And, as the air-conditioning apparatus that can be applied to such a vehicle, the following apparatus has been developed: a refrigerant circuit is provided with a compressor, a radiator, a heat absorber, and an outdoor heat exchanger; The refrigerant ejected from the compressor dissipates heat in the radiator, and the refrigerant after the radiator dissipates heat absorbs heat in the outdoor heat exchanger to perform heating; the refrigerant ejected from the compressor dissipates heat in the outdoor heat exchanger, The refrigerant is evaporated and absorbs heat in a heat absorber ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60H1/22B60H1/32B60L3/00B60L50/50
CPCB60L3/00B60L50/40B60L58/00B60L53/00B60L55/00B60H1/32B60L50/50B60H1/22Y02T10/70Y02T10/7072Y02T90/14
Inventor 山崎雄满宫腰龙山下耕平青木孝史张洪铭柴冈芳树户山贵司
Owner SANDEN CORP
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