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Automobile heat managing system and electric automobile

A thermal management system and automobile technology, applied in the field of air conditioning of electric vehicles, can solve the problems of difficult realization of vehicles, limited box space, and large power batteries, and achieve the effect of facilitating the layout of the whole vehicle and improving the charging and discharging efficiency.

Active Publication Date: 2017-11-17
BYD CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the power battery cooling system can cool the power battery through the evaporator during refrigeration, the power battery and the evaporator are closely connected to exchange heat. Although it is feasible in principle, it is difficult to implement on the car because the evaporator is generally in the Inside the air-conditioning box, the space of the box is limited, and the power battery of a pure electric vehicle is very large, which is usually placed at the bottom of the vehicle

Method used

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  • Automobile heat managing system and electric automobile
  • Automobile heat managing system and electric automobile
  • Automobile heat managing system and electric automobile

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Embodiment Construction

[0054] 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.

[0055] 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.

[0056] In addition, in the present invention, electric vehicles may include pure electric vehicles, hybrid vehicles, and fuel cell vehicles....

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Abstract

The invention discloses an automobile heat managing system and an electric automobile. The automobile heat managing system comprises a heat pump air conditioning system, a battery pack heat exchanging system, a first plate heat exchanger and a first switch valve, wherein a refrigerant inlet of the first plate heat exchanger communicates with an outlet of an outdoor heat exchanger via a selectively connected or disconnected battery cooling branch, or communicates with a first end of a connected or disconnected first branch and a first end of a connected or disconnected second branch and communicates with a compressor via a connected or disconnected battery heating branch; and a refrigerant outlet of the first plate heat exchanger communicates with the compressor via a connected or disconnected battery cooling backflow branch and communicates with an outlet of the first switch valve via a battery heating backflow branch. A battery is cooled or heated via the refrigerant and then the battery can work in a proper temperature range all the time; and therefore, battery charging and discharging efficiency can be improved, cruising ability and service life can be enhanced.

Description

technical field [0001] The invention relates to the field of air conditioners for electric vehicles, in particular to an automotive thermal management system and the electric vehicle. Background technique [0002] To ensure the high charging and discharging efficiency of the battery of electric vehicles, it is necessary to have a suitable working temperature. Too high or low will have a great impact on its performance and battery life. The utility model whose Chinese patent publication number is CN205039220U discloses a kind of automobile power battery cooling system. Although the power battery cooling system can cool the power battery through the evaporator during refrigeration, the power battery and the evaporator are closely connected to exchange heat. Although it is feasible in principle, it is difficult to implement on the car because the evaporator is generally in the Inside the air-conditioning box, the space of the box is limited, and the power battery of a pure ele...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60H1/00B60H1/03
CPCB60H1/00278B60H1/00392B60H1/034B60H2001/00307
Inventor 黄健汪孟瑛陈雪峰叶梅娇
Owner BYD CO LTD
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