Automotive Thermal Management Systems and Electric Vehicles
A technology of a thermal management system and a heat exchange system, which is applied in the field of electric vehicles, can solve the problems of limited box space, large power batteries, and difficulty in realizing vehicles, and achieves the effects of simple structure, easy mass production, and improved charging and discharging efficiency.
Active Publication Date: 2019-11-05
BYD CO LTD
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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
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[0044] 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.
[0045] 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.
[0046] In the present invention, an electric vehicle mainly refers to a hybrid vehicle.
[0047] figure 1 It is a structural schematic dia...
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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, an engine cooling system and a first plate heat exchanger, wherein the heat pump air conditioning system and the engine cooling system exchange heat with the battery pack heat exchanging system respectively via the first plate heat exchanger; the heat pump air conditioning system comprises a compressor, an indoor condenser, an indoor steamer and an outdoor heat exchanger; a refrigerant inlet of the first plate heat exchanger communicates with an outlet of the outdoor heat exchanger or an inlet of the indoor steamer via a selectively connected or disconnected battery cooling branch; and a refrigerant outlet of the first plate heat exchanger communicates with an inlet of the compressor via a battery cooling backflow branch. Therefore, inside vehicle refrigeration and heat can be met; battery cooling and heating functions can be also achieved, so the battery can work in a proper temperature range; and battery charging and discharging efficiency can be improved, cruising ability and service life can be improved.
Description
technical field [0001] The present invention relates to an automobile air-conditioning system, in particular to an automobile heat management system and an electric automobile including the automobile heat management system. 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 lim...
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IPC IPC(8): B60H1/00B60H1/22
CPCB60H1/00278B60H1/00392B60H1/2225B60H2001/00307
Inventor 汪孟瑛叶梅娇陈雪峰黄健
Owner BYD CO LTD