Heat pump air conditioning system and electric vehicles

A heat pump air conditioner and battery technology, applied in vehicle components, high-efficiency conditioning technology, air treatment equipment, etc., can solve the problem of no battery heating system, unable to meet the requirements of battery heating, etc., to facilitate pipeline layout and improve charging and discharging efficiency. , The effect of easy mass production

Active Publication Date: 2021-02-23
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this system can be used in various types of electric vehicles to cool the battery air conditioning system, but the system only has a cooling system and no battery heating system. This patented technology can only meet the high-temperature cooling of the battery, and cannot meet the requirements of heating the battery at low temperature

Method used

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  • Heat pump air conditioning system and electric vehicles
  • Heat pump air conditioning system and electric vehicles
  • Heat pump air conditioning system and electric vehicles

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Embodiment Construction

[0049] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0050] In the present invention, unless stated otherwise, the used orientation words such as "up, down, left, right" are usually relative to the drawing direction of the drawings, and "upstream and downstream" are relative to Medium, for example, in terms of the flow direction of the refrigerant, specifically, the flow direction toward the refrigerant is downstream, and the flow direction away from the refrigerant is upstream, and "inside and outside" refer to the inside and outside of the corresponding component outline.

[0051] In the present invention, electric vehicles may include pure electric vehicles, hybrid vehicles, and fuel cell vehicles.

[0052] f...

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Abstract

The invention discloses a heat pump air-conditioning system and an electric vehicle. The system includes a compressor, an indoor condenser, an indoor evaporator, an outdoor heat exchanger and a battery pack with an evaporator inside. The compressor communicates with the indoor condenser. The ground of the condenser communicates with the outdoor heat exchanger through the first throttling branch or the first flow branch, and the ground of the outdoor heat exchanger communicates with the compressor through the second throttling branch or with the indoor air through the second throttling branch. The evaporator is connected, the indoor evaporator is connected with the compressor, the evaporator in the battery pack is connected with the outdoor heat exchanger or the indoor evaporator by the on or off battery cooling branch, and the on or off battery heating branch It communicates with the compressor; the evaporator in the battery pack communicates with the compressor through the on or off battery cooling return branch, and communicates with the indoor condenser through the on or off battery heating return branch. As a result, heating energy efficiency can be improved, and the air-conditioning system can be used to heat or cool the battery pack.

Description

technical field [0001] The invention relates to the field of air conditioning for electric vehicles, in particular to a heat pump air conditioning system and the electric vehicle. Background technique [0002] Electric vehicles do not have the engine waste heat that traditional vehicles use for heating, so they cannot provide a heating source. Therefore, the air-conditioning system of the electric vehicle must have the function of heating itself, that is, adopt a heat pump type air-conditioning system and / or electric heating for heating. [0003] The utility model patent whose publication number is CN205039220U discloses a cooling system for an automobile power battery. Although this system can be used in various types of electric vehicles to cool the battery air conditioning system, but the system only has a cooling system and no battery heating system. This patented technology can only meet the high-temperature cooling of the battery, and cannot meet the requirements of h...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25B41/20F25B41/31B60H1/00F25B41/30
CPCB60H1/00007F25B41/30F25B41/20Y02B30/70
Inventor 梁耀炜叶梅娇陈雪峰
Owner BYD CO LTD
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