Fin perforation type cylindrical battery pack, battery pack assembly and battery pack array

A technology for cylindrical batteries and battery packs, applied in secondary batteries, secondary battery repair/maintenance, circuits, etc., can solve the problems of uneven temperature field distribution of cylindrical battery packs, local overheating in non-specific areas, etc., and achieve temperature resolution The effect of uneven distribution, simple and compact structure, and easy expansion

Pending Publication Date: 2018-12-14
马海云
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The object of the present invention is to provide a fin perforated cylindrical battery pack, a battery pack combination and a battery pack array to solve the problems of uneven temperature field distribution and local overheating in non-specific areas of cylindrical battery packs in the prior art, taking into account the uniform Temperature, temperature control performance and low cost, light weight and manufacturability requirements

Method used

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  • Fin perforation type cylindrical battery pack, battery pack assembly and battery pack array
  • Fin perforation type cylindrical battery pack, battery pack assembly and battery pack array
  • Fin perforation type cylindrical battery pack, battery pack assembly and battery pack array

Examples

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Embodiment 1

[0039] see Figure 1-3 , the present invention provides a technical solution: a fin perforated cylindrical battery pack, including a plurality of cylindrical batteries 11 and a fin group, the fin group is composed of a number of parallel fins 12, and the fins 12 are provided with A plurality of cylindrical batteries 11 have assembly holes 121 matching in shape and size, and the edges of the assembly holes 121 extend outward to form flanges 122 with a certain height. On the hole 121 and with the flanging 122, an integral finned perforated cylindrical battery pack is formed. This battery module can effectively control the local overheating of the non-specific area of ​​the battery pack, prevent thermal runaway, and has good uniformity. thermal, thermal and cooling performance. The finned perforated cylindrical battery pack is also provided with a casing.

[0040] Specifically, the cylindrical battery 11 is pressed into the assembly hole 121 of the fin 12 by a press. The flang...

Embodiment 2

[0051] The invention provides a technical solution: a fin perforated cylindrical battery pack, including a plurality of cylindrical batteries 21 and a fin group, the fin group is composed of a number of parallel fins 22, and the fins 22 are provided with multiple A cylindrical battery 21 has an assembly hole whose shape and size match, and the edge of the assembly hole extends outward to form a flange with a certain height. A plurality of cylindrical batteries 21 are vertically worn on the assembly hole on each fin 22 and connected to the flange. The extrusion interference fit forms an integral finned perforated cylindrical battery pack, which has good heat transfer and temperature uniformity performance.

[0052] Further, as Figure 4 As shown, a cooling device for heating or cooling the battery pack is provided on the side of the fin group, and the cooling device may be a cooling flat tube 23, a cooling plate or a cooler. Specifically, if it is a cooling flat tube 23, the c...

Embodiment 3

[0057] Such as Figure 7 As shown, the present invention provides a technical solution: a fin perforated cylindrical battery pack, including a plurality of cylindrical batteries 41 and a fin group, the fin group is composed of several fins 42 arranged in parallel, and the fins 42 are provided with There are assembly round holes 421 matching the shape and size of a plurality of cylindrical batteries 41, and the edges of the assembly round holes 421 extend outward to form a flange 422 with a certain height, and a plurality of cylindrical batteries 41 are vertically mounted on each fin 42 On the assembling round hole 421 and with the flange 422 interference fit to form an integral fin perforated cylindrical battery pack. The fins 42 of each battery pack are also provided with heat transfer tube holes 426 , the shape and size of the heat transfer tube holes 426 match the heat transfer tubes 46 , and the heat transfer tube holes 426 have flanges of a certain height.

[0058] Such ...

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Abstract

The invention relates to the technical field of battery thermal management, in particular to a fin perforation type cylindrical battery pack, includomg a plurality of cylindrical cells and a fin group, The fin group is composed of a plurality of fins arranged in parallel, and the fin is provided with a plurality of assembly holes matched with the shape and size of the plurality of cylindrical cells, the edges of the assembly holes extend outward to form flanged edges with a certain height, and the plurality of cylindrical cells vertically penetrate the assembly holes on the fins and are matched with the flanged edges. The invention can solve the problems that the temperature field distribution of the cylindrical battery pack in the prior art is uneven and the part of the non-specific areais overheated, and can meet the requirements of good temperature uniformity, temperature control performance and low cost, light weight and manufacturability.

Description

technical field [0001] The invention relates to the technical field of battery thermal management, and specifically relates to a fin perforated cylindrical battery pack, a battery pack combination and a battery pack array. Background technique [0002] At present, the power battery cells of electric vehicles and energy storage systems mainly have structural forms such as cylindrical batteries, square batteries and pouch batteries. Cylindrical winding battery cells are the earliest, most mature, and most stable lithium-ion batteries. The production process is mature. The standardization, consistency, and safety of batteries are high. The overall cost is also low, and the assembled battery modules have high energy density. , are widely used in electric vehicles and energy storage systems of many companies. [0003] Cylindrical batteries have a small cell capacity and require a large number of cells. Temperature differences are prone to occur inside the battery. It is necessar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/42H01M10/613H01M10/6554H01M10/6556
CPCH01M10/42H01M10/613H01M10/6554H01M10/6556Y02E60/10
Inventor 马海云陈明迁马云骏
Owner 马海云
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