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Heat pump air-conditioning system for electric or hybrid vehicle

A technology for hybrid electric vehicles and heat pump air conditioners, which is applied in the field of heat pump air conditioner systems and air conditioning devices, and can solve the problems of large heating efficiency conversion loss, impact on vehicle cruising range, and large energy consumption

Active Publication Date: 2014-10-29
庹明慧
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, PTC heating or electric heating tube heating are mainly used at home and abroad to meet the needs of heating and dehumidification-heating in the car, but these heating devices consume a lot of energy, and the conversion loss of heating efficiency is relatively large, and at the same time seriously affect the cruising range of the car

Method used

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  • Heat pump air-conditioning system for electric or hybrid vehicle

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Embodiment Construction

[0018] The present invention will be described in further detail below through specific examples.

[0019] Such as figure 1 As shown, a heat pump air-conditioning system for an electric or hybrid vehicle includes a compressor 1 with supplementary air to increase enthalpy, a four-way valve 3, an external heat exchanger 4, a two-way thermal expansion valve 5, an intermediate heat exchanger 6, Expansion valve 7, cut-off valve 8, in-vehicle heat exchanger 10, return air pipeline 11, air supply pipeline and blower 14, the four-way valve 3 is provided with an air inlet 3a, an air return port 3d, a cooling flow port 3b, Heating flow port 3c, the intermediate heat exchanger 6 is provided with a first heat exchange medium passage and a second heat exchange medium passage, the exhaust port 1a of the compressor 1 communicates with the intake port 3a of the four-way valve 3 , the air return port 3d of the four-way valve 3 is connected to the air suction port 1b of the compressor 1 throug...

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Abstract

The invention discloses a heat pump air-conditioning system for an electric or hybrid vehicle. The heat pump air-conditioning system for the electric or hybrid vehicle comprises a compressor with the air supplying and enthalpy increasing function, a four-way valve, an external heat exchanger, a bidirectional thermal expansion valve, a middle heat exchanger, an expansion valve, a block valve, an internal heat exchanger, an air return pipeline, an air supplying pipeline, an air blower and an air distributing system. According to the heat pump air-conditioning system for the electric or hybrid vehicle, the flowing direction of refrigeration circulation is made to be opposite to the flowing direction of heating circulation by means of the four-way valve and the bidirectional thermal expansion valve, in this way, both the refrigeration mode and the heating mode are achieved on the electric or hybrid vehicle, PTC heating and electric heating tube heating are not needed for heating, the energy efficiency ratio is high, and the performance is reliable.

Description

technical field [0001] The invention relates to a heat pump air-conditioning system, which belongs to the field of vapor compression air-conditioning systems, in particular to an air-conditioning device applied to various hybrid vehicles or electric vehicles. Background technique [0002] In recent years, hybrid electric vehicles and pure electric vehicles have been widely used. The driving force of the vehicle is mainly or completely completed by the main drive motor. In this mode, the waste heat of the engine cannot be used as a heat source in the cabin, and a new heat source needs to be used to replace it. At present, PTC heating or electric heating tube heating are mainly used at home and abroad to meet the needs of heating and dehumidification-heating in the car. However, these heating devices consume a lot of energy, and the conversion loss of heating efficiency is relatively large. At the same time, it seriously affects the cruising range of the car. Contents of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B29/00F25B13/00F25B41/04F25B41/06F25B41/20F25B41/31
CPCY02B30/70
Inventor 庹明慧
Owner 庹明慧
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