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Battery pack liquid flow laminated layer heat-exchanging flat pipe bundle structure and method

A technology of heat exchange tube bundles and battery packs, which is applied in the thermal management of power battery packs and electric vehicles, can solve the problems of heavy weight, unfavorable battery group lightweight, and large volume, so as to achieve light weight, reduced capacity and all The effect of requiring process space and good heat exchange capacity

Inactive Publication Date: 2014-06-04
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The whole plate heat exchange structure adopted is large in size and heavy in weight, which is not conducive to the light weight of battery packs

Method used

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  • Battery pack liquid flow laminated layer heat-exchanging flat pipe bundle structure and method
  • Battery pack liquid flow laminated layer heat-exchanging flat pipe bundle structure and method
  • Battery pack liquid flow laminated layer heat-exchanging flat pipe bundle structure and method

Examples

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Embodiment Construction

[0012] As shown in the drawings, in this embodiment, the flat tubes 2 are respectively arranged on both sides of each single battery 1 in the power battery group in a staggered arrangement to form a tube bundle for heat exchange, and the heat exchange fluid 3 flows through the heat exchange tube bundle. It flows in each channel and exchanges heat with the cells to ensure good temperature uniformity of each single cell in the battery pack.

[0013] Furthermore, each side flat tube bundle constitutes a laminated heat exchange unit, and is arranged in groups with battery sheets at intervals. The side surfaces of the heat exchange flat tube 2 and the battery 1 are made of high thermal conductivity glue 8 to ensure good heat transfer and reduce contact thermal resistance; At the same time, each heat exchange unit is connected with the water parting chamber 4 and the water collection chamber 5 at the end to form an overall heat exchange.

[0014] Among them, the end partial water ch...

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PUM

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Abstract

The invention provides a battery pack liquid flow laminated layer heat-exchanging flat pipe bundle structure. A flat pipe bundle heat-exchanging structure is adopted to form a heat transferring channel between heat-exchanging liquid and a power battery; a heat-exchanging pipe bundle is arranged in a staggered arraying manner so that the temperature uniformity of a battery piece is guaranteed and the good heat-exchanging capability is realized; the capacity of the heat-exchanging liquid and a needed flow space can also be reduced and the light weight is realized.

Description

technical field [0001] The invention belongs to the field of heat management of electric vehicles and power battery packs, and in particular relates to a power battery group liquid flow thermal control structure and a heat exchange method thereof. Background technique [0002] Power battery is the key technology for the development of electric vehicles. Its charging and discharging process is not only affected by complex driving factors, but also its electrochemical reaction is also restricted by thermal environmental factors. Therefore, the grouping of power batteries requires fine thermal environment temperature control and thermal manage. In fact, due to the compact structural arrangement and location differences of the unit cells in a large-scale battery group, strong heat accumulation, heat transfer differences, and temperature imbalance will occur inside the battery pack, which will seriously aggravate the inconsistency of the electrochemical reactions of each unit cel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/6568H01M10/625
CPCH01M2220/20Y02E60/10
Inventor 高青张天时王国华高淳
Owner JILIN UNIV