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Double-layer battery pack

A battery pack, double-layer technology, applied in secondary batteries, circuits, electrical components, etc., can solve problems such as complex structure, difficult manufacturing process, and leakage of coolant

Pending Publication Date: 2022-07-05
ANHUI QIANGLONG IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The thermal management of traditional liquid-cooled battery packs is achieved through liquid-cooled plates. The manufacture of liquid-cooled plates usually requires heated brazing or friction stir welding. The manufacturing process is difficult and the structure is complex, and accidents of coolant leakage are prone to occur.

Method used

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Embodiment Construction

[0024] In order to facilitate those skilled in the art to accurately understand the technical solutions of the present invention, the patent of the present invention is described in detail below with reference to the accompanying drawings.

[0025] refer to figure 1 and figure 2 , the present invention provides a double-layer battery pack, including an upper layer 10 and a lower layer 20 that can be attached to each other, the battery pack 30 is installed in the cavity between the upper layer 10 and the lower layer 20, the upper layer 10 has a heat insulation function, and the lower layer 20 With the function of heat dissipation, the upper layer 10, the lower layer 20 and the battery pack 30 together form a battery pack.

[0026] The main content of the present invention is that the lower layer 20 has an interlayer structure, the interlayer can be filled with cooling liquid, and the lower layer 20 half surrounds the battery pack 30, so the battery pack 30 can increase the ar...

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PUM

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Abstract

A double-layer battery pack comprises an upper layer, a lower layer and a battery pack, the upper layer is provided with an upper cover, a heat insulation plate and a positioning piece, the lower layer is provided with a supporting plate, a sealing ring, a positioning piece, a heat dissipation layer, a temperature and humidity sensor, a rib plate and a bottom plate, and the battery pack is installed in a cavity between the upper layer and the lower layer; the interlayer between the supporting plate and the bottom plate is filled with the cooling liquid, the flow direction of the cooling liquid is guided through the rib plates, and compared with a common battery pack provided with a liquid cooling plate, the battery pack has the advantages of being simple in structure, good in reliability and easy to manufacture.

Description

technical field [0001] The invention relates to the technical field of battery packs, in particular to a double-layer battery pack. Background technique [0002] The battery pack is the main power source of electric vehicles. Generally, a battery pack is composed of multiple battery cells. The battery pack is installed between the battery cover and the bottom plate to form a battery pack. The battery pack is installed at the position of the electric vehicle chassis to provide power. Only within a certain temperature range has better performance and service life, so the thermal management system of the battery pack must be efficient and reliable enough. [0003] Common heat transfer media for battery pack thermal management systems include air, liquid and phase change materials. Due to efficiency and cost reasons, the use of liquid as the heat transfer medium is currently the mainstream. The key to this type of battery pack thermal management system is around the battery cell...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/613H01M10/625H01M10/6567H01M10/48
CPCH01M10/613H01M10/625H01M10/6567H01M10/486Y02E60/10
Inventor 廖强
Owner ANHUI QIANGLONG IND CO LTD