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Oil bath-based natural circulation and heat pipe-coupled battery pack thermal management system

A thermal management system and natural circulation technology, which is applied in the field of thermal management control of vehicle power batteries, can solve problems such as electrolyte dryness, failure, expansion, fire, stacking heat, explosion, etc., to achieve significant arc extinguishing and insulation effects, and increase heat dissipation Strength, the effect of ensuring stable operation

Inactive Publication Date: 2015-02-18
HARBIN INST OF TECH AT WEIHAI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problems existing in the existing power battery packs such as lamination and heat generation, electrolyte dryness and failure until expansion, fire and explosion, the present invention further provides a battery pack thermal management system based on the coupling of oil bath natural circulation and heat pipes

Method used

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  • Oil bath-based natural circulation and heat pipe-coupled battery pack thermal management system
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  • Oil bath-based natural circulation and heat pipe-coupled battery pack thermal management system

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specific Embodiment approach

[0024] Specific implementation method: A battery pack thermal management system based on oil bath natural circulation coupled with heat pipes in this embodiment includes a plurality of single batteries 1, a plurality of battery card slots 2, a box top cover 7 and a casing 9, The bottom surface of the housing 9 is provided with a plurality of battery slots 2, and each single battery 1 is fixed in the housing 9 through a battery slot 2, and the battery slots 2 position the single battery 1 to ensure that the single battery The position of the body battery 1 will not move, and a plurality of single cells are connected in series and parallel to form a power battery pack, and the top cover 7 of the box body is installed on the casing 9 to form a power battery box; The battery pack thermal management system coupled with heat pipes also includes multiple heat pipes 4 and multiple circulation pipes 8. The single battery 1 is vacuum-sealed. The evaporation section 6 of the heat pipe 4 i...

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Abstract

An oil bath-based natural circulation and heat pipe-coupled battery pack thermal management system relates to an automotive battery thermal management system. The invention aims to solve the problem that overlying heating and dried-up electrolyte of a present power battery pack lead to swelling, fire breakout and explosion of the power battery pack. The oil bath-based natural circulation and heat pipe-coupled battery pack thermal management system contains multiple heat pipes and multiple circulating pipes. A single battery adopts vacuum seal. An evaporator section of each heat pipe is arranged inside a power battery box, and a condensation section of the heat pipe passes through the top cap of the box body to be arranged outside the power battery box. A phase-change material is arranged inside the heat pipe. Residual space of the power battery box is filled with transformer oil. Left and right walls of a housing are both provided with multiple circulating pipes. One end of each circulating pipe is communicated with the upper part of the housing, and the other end of the circulating pipe is communicated with the lower part of the housing. Thus, natural circulation of transformer oil is formed. The system provided by the invention is used for power battery thermal management.

Description

technical field [0001] The invention relates to a vehicle battery thermal management system, in particular to a battery pack thermal management system based on oil bath natural circulation coupled with heat pipes, and belongs to the technical field of vehicle power battery thermal management control. Background technique [0002] In today's era, the energy problem and the environmental problem caused by it is one of the many problems in the world that need to be solved urgently. Using new technologies to develop new energy vehicles has become an inevitable trend, and it has also received extensive attention in various countries. At present, as a representative of many new energy vehicles, electric vehicles have attracted the attention of countries all over the world due to their near-zero emission environmental reliability and the operation stability of direct motor drive. [0003] As the power core of electric vehicles, batteries must be kept within the optimum operating t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/613H01M10/625H01M10/6552H01M10/6567H01M2/10H01M50/184H01M50/195H01M50/22H01M50/24H01M50/242H01M50/244H01M50/249H01M50/271H01M50/289
CPCH01M50/20Y02E60/10
Inventor 王富强马兰新王成安闫振宇王程超谭建宇
Owner HARBIN INST OF TECH AT WEIHAI
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