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Thermal management system of vehicle and battery and control method thereof

A technology of a thermal management system and a control method, applied in the thermal management system of a battery and its control, and the field of vehicles, can solve the problems of inability to meet the battery temperature requirement, low cooling efficiency, complex structure, etc., so as to improve the temperature regulation efficiency and prolong the use. Longevity, the effect of achieving uniform temperature

Active Publication Date: 2022-08-09
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

They all adopt the technology of battery liquid cooling, the structure is complex and the cooling efficiency is low, which cannot meet the temperature requirements of the battery

Method used

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  • Thermal management system of vehicle and battery and control method thereof
  • Thermal management system of vehicle and battery and control method thereof
  • Thermal management system of vehicle and battery and control method thereof

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Embodiment Construction

[0035] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements including the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary, and are intended to explain the present invention and should not be construed as limiting the present invention.

[0036] like figure 1 and figure 2 As shown, the thermal management system 1 for a battery according to an embodiment of the present invention includes a compressor 10 , a first heat exchanger 20 , a second heat exchanger 30 , a battery 40 , a first control valve 50 and a second control valve 60 .

[0037] Specifically, as figure 1 and figure 2 As shown, the compressor 10 includes a suction port 12 and an exhaust port 11 , one end of the first heat exchanger 20 is communicated with the ex...

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Abstract

The invention discloses a thermal management system of a vehicle and a battery and a control method thereof. The thermal management system of the battery includes a compressor, a first heat exchanger, a second heat exchanger, a battery, a first control valve, and a second control valve. The compressor includes a suction port and an exhaust port. One end of the second heat exchanger is communicated with the exhaust port, one end of the second heat exchanger is communicated with the other end of the first heat exchanger, and the other end of the second heat exchanger is communicated with the suction port of the compressor. The battery includes a cooling branch, and the cooling branch is connected in parallel with the second heat exchanger. The first control valve is located between the first heat exchanger and the battery, and the second control valve is located between the compressor and the battery. According to the thermal management system of the battery of the present invention, by connecting the battery in parallel with the second heat exchanger, not only the normal regulation of the ambient temperature can be realized, but also the direct cooling and direct heating of the battery can be realized. With the second control valve, the temperature uniformity regulation of the cells in the cell can be realized.

Description

technical field [0001] The present invention relates to the technical field of vehicles, in particular, to a thermal management system of a vehicle and a battery and a control method thereof. Background technique [0002] In order to improve the charging and discharging efficiency of the battery, it is necessary to have a suitable working temperature. Too high or too low will have a great impact on its performance and endurance. In the related art, the battery is cooled by setting an independent cooling channel. In addition, some vehicles combine the air conditioning system to control the temperature of the battery, and the air conditioning system is used to exchange heat for the cooling liquid flowing through the battery, so as to realize the cooling of the battery. or warming up. They all adopt the technology of battery liquid cooling, the structure is complex and the cooling efficiency is low, which cannot meet the temperature requirements of the battery. SUMMARY OF TH...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60H1/00
CPCB60H1/00278B60H1/00878B60H2001/00307Y02T10/70
Inventor 胡珂黄梅芳
Owner BYD CO LTD
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