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Vehicular air-conditioning device

A technology for vehicle air conditioners and air conditioners, applied in vehicle parts, transportation and packaging, air handling equipment, etc., can solve the problems of passengers' ear-piercing, achieve cooling comfort, reduce driving sound, and improve the effect of goods

Pending Publication Date: 2021-07-23
三电株式会社
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In addition, since the electric compressor generates a relatively loud driving sound when it rotates at high speed, if the sound level in the vehicle cabin becomes low and quiet, the driving sound will be harsh to the passengers.

Method used

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  • Vehicular air-conditioning device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] figure 1 It is a configuration diagram showing a vehicle air conditioner 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) not equipped with an engine (internal combustion engine), and supplies electric power charged to a battery 55 mounted on the vehicle to a running motor (electric motor; not shown) The compressor 2 described later of the vehicle air conditioner 1 of the present invention is also driven by electric power supplied from the battery 55 .

[0063]That is, the vehicle air conditioner 1 of the embodiment switches between the heating mode, the dehumidification and heating mode, the dehumidification and cooling mode, Cooling mode, defrosting mode, air-conditioning (priority)+battery cooling mode, battery cooling (priority)+air-conditioning mode, and battery cooling (individual) mode are used to air-condition the interior of the vehicle and adjust the temp...

Embodiment 2

[0260] then, Figure 23 A configuration diagram showing a vehicle air conditioner 1 to which another embodiment of the present invention can be applied. Figure 23 This is an example of a vehicle air conditioner 1 including a heat absorber 101 for a rear seat as an evaporator for cooling air supplied to a rear portion (rear seat) of a vehicle interior. Also, in this figure, using the figure 1 Components denoted by the same symbols perform the same or have the same function.

[0261] However, the heat absorber 9 serves as a heat absorber for the front seats for cooling the air supplied to the front portion (front seats) of the vehicle interior. In addition, in Figure 19 The indoor air blower 27, the muffler 5, the filter screen 19, etc. are not shown in the figure, but they are actually arranged at the same position. In addition, in this example, the solenoid valve 20 and the solenoid valve 22 are not provided, and the refrigerant pipe 13B protruding from the subcooling un...

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PUM

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Abstract

Provided is a vehicular air-conditioning device capable of achieving effective cooling of a temperature-adjusting target and comfortable air conditioning inside a vehicle cabin by appropriately controlling the upper limit rotational speed of an electric compressor. According to the present invention, on the basis of factors affecting a sound level inside a vehicle cabin, the upper limit rotational speed of a compressor (2) is changed between the predetermined highest value and the lowest value when controlling the compressor such that the rotational speed decreases as the sound level inside the vehicle cabin is lowered. Provided in the present invention are: a single mode in which a refrigerant absorbs heat by a heat absorber (9 or a refrigerant-heating medium heat-exchanger (64); and a coordination mode in which the refrigerant absorbs heat by the heat absorber and the refrigerant-heat medium heat-exchanger, wherein the upper limit rotational speed when controlling the compressor in the coordination mode is changed to be higher than the upper limit rotational speed when controlling the compressor in the single mode.

Description

technical field [0001] The present invention relates to a heat pump type air conditioner for air conditioning the interior of a vehicle. Background technique [0002] Due to environmental problems emerging in recent years, vehicles such as electric vehicles and hybrid vehicles that drive running motors using electric power supplied from batteries mounted on the vehicles have spread. In addition, as an air conditioner that can be applied to the above-mentioned vehicle, a structure including a refrigerant circuit connected by an electric compressor, a radiator, a heat absorber, and an outdoor heat exchanger has been developed. The refrigerant discharged from the compressor dissipates heat in the radiator, and the refrigerant that has dissipated heat in the radiator absorbs heat in the outdoor heat exchanger to perform heating, and the refrigerant discharged from the compressor exchanges heat outdoors The vehicle interior is air-conditioned by absorbing heat in a heat absorber...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60H1/00B60H1/22B60H1/32
CPCB60H1/32B60H1/22B60H1/00
Inventor 青木孝史宫腰竜山下耕平张洪铭
Owner 三电株式会社