Unlock instant, AI-driven research and patent intelligence for your innovation.

Thermal management system for electric vehicle battery

A technology for battery thermal management and electric vehicles, applied in electric vehicles, secondary batteries, battery/fuel cell control devices, etc., can solve the problems of large heating energy consumption and low heat dissipation efficiency

Inactive Publication Date: 2018-09-07
ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
View PDF5 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a battery thermal management system for an electric vehicle, which solves the problems of low heat dissipation efficiency and high energy consumption for heating when the existing electric vehicle dissipates heat and heats the power battery, can reduce energy waste, and improve the cruising range capability of the power battery , to improve the comprehensive utilization of electric vehicle energy

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Thermal management system for electric vehicle battery
  • Thermal management system for electric vehicle battery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0065] In order to enable those skilled in the art to better understand the solutions of the embodiments of the present invention, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings and implementation manners.

[0066] When the power battery of the current electric vehicle adopts liquid cooling, the condenser needs to be shared with the air conditioning system, which is prone to low heat dissipation efficiency. At the same time, the use of PTC heating for the temperature increase of the power battery has the problem of large energy consumption. The present invention provides a battery thermal management system for electric vehicles. The power battery is cooled by cooling liquid through a cooling liquid circulating device, and the heat generated by the motor inverter is used for heating the power battery through the waste heat circulating device, which solves the problem of existing electric vehicles. Durin...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a thermal management system for an electric vehicle battery. The thermal management system comprises a control unit, a cooling liquid circulating device and a waste heat circulating device, wherein the cooling liquid circulating device exchanges heat with a power battery through a first loop and refrigerates the power battery, and accordingly, the temperature of the power battery is reduced; the waste heat circulating device exchanges heat with the power battery through a second loop and heats the power battery, and heat produced during operating of a motor inverter is used for heating the power battery; the control unit is used for controlling on-off of the first loop or the second loop according to the temperature of the power battery. According to the thermal management system for the electric vehicle battery, the heat dissipation efficiency of the power battery is improved, and energy waste during heating of the power battery is reduced.

Description

Technical field [0001] The invention relates to the technical field of automobile batteries, in particular to a thermal management system for electric automobile batteries. Background technique [0002] As the core components and key technologies of electric vehicles, the performance of power batteries, motors, and electronic control units are closely related to temperature. Because the battery generates a large amount of chemical reaction heat and Joule heat during the charging and discharging process, it is easy to cause the power battery. Too high temperature causes safety hazards. At the same time, the power battery is also affected by the external climate and environment. For example, under cold and low temperature, the output capacity of the power battery will decrease. Therefore, effective battery thermal management plays an important role in the cruising range and energy saving of electric vehicles. [0003] At present, the heat dissipation methods of battery packs mainly ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): H01M10/613H01M10/615H01M10/625H01M10/635H01M10/6563H01M10/6567H01M10/667B60H1/00B60L11/18
CPCB60H1/00278B60H2001/00307B60L58/26B60L58/27H01M10/613H01M10/615H01M10/625H01M10/635H01M10/6563H01M10/6567H01M10/667Y02E60/10Y02T10/70
Inventor 孙强郭艳杜士云陈昌瑞常先强马腾飞邰小艳
Owner ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD