A heating film system assembly for a battery pack

A heating film and assembly technology, applied in the direction of secondary batteries, battery/fuel cell control devices, circuits, etc., can solve the problems of heavy weight and high cost of heating film assembly, and achieve lightweight design and versatility Strong, weight-reducing effect

Active Publication Date: 2022-02-22
FJ MOTOR GRP YUDO NEW ENERGY AUTOMOBILE CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] For this reason, it is necessary to provide a heating film system assembly for battery packs to solve the problems of heavy weight and high cost of use of the existing heating film assembly for battery packs

Method used

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  • A heating film system assembly for a battery pack
  • A heating film system assembly for a battery pack
  • A heating film system assembly for a battery pack

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Embodiment Construction

[0035] In order to explain in detail the technical content, structural features, achieved goals and effects of the technical solution, the following will be described in detail in conjunction with specific embodiments and accompanying drawings.

[0036] see Figure 1 to Figure 8 , the present invention provides a heating film system assembly for a battery pack. The heating film system is used to heat the heat-conducting medium through the heating film when the battery pack thermal management system is in a low-temperature environment, so as to achieve the purpose of heating the battery module 700. Features. Specifically, the heating film system assembly includes a PI heating film body 100 and an isolation foam 200, the PI heating film body 100 includes a PI film 110 and a resistance wire 120, and the PI film 110 is provided with a hollow hole 111, The hollow hole 111 separates the PI film 110 into at least two module layout areas 130, the adjacent module layout areas 130 are ...

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Abstract

The present invention relates to the technical field of battery packs for electric vehicles, in particular to a heating membrane system assembly for battery packs, which includes a PI heating membrane body and isolation foam, the PI heating membrane body includes a PI film and a resistance wire, and the PI heating membrane body includes a PI heating membrane body and a resistance wire. There are hollow holes on the film, and the hollow holes separate the PI film into at least two module layout areas, and the adjacent module layout areas are connected by the PI films on both sides of the hollow holes, and the resistance wire covers Inside the module layout area, the resistance wires between adjacent module layout areas are arranged in series, and the opening position of the hollow hole does not overlap with the layout area of ​​the resistance wire. The isolation foam is respectively arranged on the PI on both sides of the hollow hole. film. In this scheme, the electrical connection is more concise and reliable. At the same time, based on the flexibility of the PI film, it can be adaptively adjusted according to the surface characteristics of the contact surface at the installation position of the PI heating film body. It has strong versatility and greatly reduces the PI heating film system. The weight of the assembly is conducive to the lightweight design of the battery pack.

Description

technical field [0001] The invention relates to the technical field of battery packs for electric vehicles, in particular to a heating membrane system assembly for battery packs. Background technique [0002] At present, the design of lithium battery packs for electric vehicles pays more and more attention to high specific energy design. The same is true for thermal management system components. At present, the main method of thermal management system design is air cooling or liquid cooling; when heating at low temperature, the air-cooled battery pack generally adopts the integrated PTC to blow the internal heat circulation air to realize the heating function; liquid cooling is to heat the refrigerant liquid through the PTC in the front cabin Realize the heating function; for natural battery packs, it is generally necessary to adopt a heating film with a resistance wire to realize it. At present, the common heating film integration solutions include the integrated epoxy boa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/615H01M10/625H01M10/6571B60L58/27
CPCH01M10/615H01M10/625H01M10/6571B60L58/27Y02T10/70Y02E60/10
Inventor 李金鹏刘心文吴贵新赵明刘艳
Owner FJ MOTOR GRP YUDO NEW ENERGY AUTOMOBILE CO LTD
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