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Battery pack with temperature adjusting function

A technology of temperature adjustment and temperature adjustment device, which is applied to secondary batteries, circuits, electrical components, etc., can solve the problem of high temperature of the battery pack, and achieve the effects of high cooling and heat dissipation efficiency, temperature improvement, and convenient processing.

Active Publication Date: 2012-07-18
奇瑞新能源汽车股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to propose a battery pack with temperature regulation function to solve the problem of the temperature of the battery pack being too high or too low, thereby ensuring the performance and service life of the battery pack

Method used

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  • Battery pack with temperature adjusting function

Examples

Experimental program
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Effect test

Embodiment 1

[0022] As shown in the figure, the power battery pack with temperature adjustment function of this embodiment includes a temperature adjustment device and a plurality of battery modules 1, and the battery module 1 includes a housing 3 with a plurality of spaces 2, in which are placed The battery cell 4 and the side wall of the space 2 are provided with a fluid pipeline 5, and the water inlet 51 and the water outlet 52 of the fluid pipeline 5 are arranged on the side wall of the housing 3, wherein the water inlet 51 is located in the middle of the side wall of the housing 3 And the opening is downward, and the fluid pipeline 5 is in an "S" shape; the fluid pipeline 5 of multiple battery modules is connected in series to form a fluid pipeline system, and the total water inlet 53 and the total water outlet 54 of the fluid pipeline system are arranged on the power The side wall of the battery pack; the temperature regulating device is composed of a liquid pump 6 connected by pipeli...

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Abstract

The invention provides a battery pack with a temperature adjusting function, aiming to solve the problem that the temperature of the battery pack is too high or too low, so as to guarantee the performance and the service life of the battery pack. A power battery pack comprises a temperature adjusting device and a plurality of battery modules, wherein each battery module is provided with one shell with a plurality of empty cells and a battery single body is placed in each empty cell; the side wall of each empty cell is provided with a fluid pipeline, and a water inlet and a water outlet of each fluid pipeline are arranged on the side wall of the corresponding shell; the fluid pipelines of the battery modules are connected in series so as to form a fluid pipeline system; the temperature adjusting device is composed of a liquid pump, a heat radiator and a heater, which are connected through a pipeline; and the pipeline of the temperature adjusting device is connected with the fluid pipeline system to form a closed fluid loop. According to the battery pack disclosed by the invention, a fluid medium is used for cooling and heating the battery pack, cooling and radiating efficiencies are higher, the temperature change of the battery pack is slow and the temperature difference between surfaces of batteries can be kept within 3 DEG C, so that the performance and the service life of the battery pack can be effectively improved.

Description

technical field [0001] The invention belongs to the field of lithium ion battery manufacturing, and in particular relates to a battery pack with a temperature regulating function. Background technique [0002] With the development and maturity of electric vehicle technology, power battery technology has become the core technology of electric vehicles, and it is also the first choice and main direction of most automobile and parts companies. [0003] The battery pack of an electric vehicle is composed of multiple battery modules, and each battery module is composed of multiple single cells. During use, each single battery will generate heat, which will cause the overall temperature of the battery pack to rise, which will have adverse effects on the battery pack, such as swelling, poor consistency of the battery, and affect the overall performance and cycle life of the battery pack. . In order to solve the problem of temperature rise, air cooling is generally used to cool do...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/50H01M10/613H01M10/615H01M10/617H01M10/625H01M10/6557H01M10/6567
CPCY02E60/12Y02E60/10
Inventor 王建
Owner 奇瑞新能源汽车股份有限公司
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