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Tab limiting plate, battery module, battery pack and automobile

A battery module and limit plate technology, which is applied to battery components, circuits, electrical components, etc., can solve problems such as long welding time, reduced power battery production efficiency, and cumbersome operations

Active Publication Date: 2021-03-23
DONGFENG MOTOR CORP HUBEI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the existing welding method needs to weld the tabs of a group of soft-packed cells multiple times and at multiple places, so that the tabs of each soft-packed cell are welded to the bus bar, and the welding time is long and the operation Complicated, thus reducing the production efficiency of power batteries
[0004] In summary, the existing new energy vehicle battery packs still need to be improved

Method used

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  • Tab limiting plate, battery module, battery pack and automobile
  • Tab limiting plate, battery module, battery pack and automobile
  • Tab limiting plate, battery module, battery pack and automobile

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] A kind of pole lug limiting plate 10, its structure is as figure 1 and figure 2 As shown, the main body includes a base 11, and the base 11 is provided with more than two tab passing holes 12 parallel to each other and tab guiding surfaces 13 having the same number as the tab passing holes 12, and the tab guiding surfaces 13 The positions are in one-to-one correspondence with the positions where the tabs pass through the holes 12 .

[0045] The base 11 is the main body of the lug limiting plate 10 , and the tab limiting plate 10 is sleeved on the end of the soft pack cell assembly 40 through the base 11 . Specifically, see figure 2 and Figure 5 , in this embodiment, a tab isolation cavity 17 is provided on the back of the base 11 for accommodating the end of the soft-pack battery assembly 40, and the base 11 is set in the soft-pack battery through the tab isolation cavity 17. The end of the core assembly 40 . An end limit surface 18 is provided inside the lug is...

Embodiment 2

[0063] Based on the same inventive concept, this embodiment provides a battery module 100, the structure of which is as follows Figure 6 As shown, it includes a set of flat and long battery module 130, wire harness isolation plate and bus bar assembly 120 and module housing 110, the wire harness isolation plate and bus bar assembly 120 are installed at both ends of the flat and long battery module 130, and the wire harness The isolation plate and bus bar assembly 120 specifically includes a wire harness isolation plate 121 and a bus bar 122. The wire harness isolation plate 121 and the bus bar 122 can be set in an integrated structure or a split structure. In this embodiment, the wire harness isolation plate and the bus bar assembly 120 For the detailed structure, reference may be made to the prior art, and the present invention is not specifically limited. The wire harness isolation plate and bus bar assembly 120 and a set of flat and long cell modules 130 are all covered in...

Embodiment 3

[0069] Based on the same inventive concept, this embodiment provides another battery module 100, the structure of which is as follows Figure 7 As shown, it includes more than 2 sets of flat and long battery modules 130, wire harness isolation plates, busbar assemblies 120 and module casings 110, and more than 2 sets of flat and long battery modules 130 are stacked along the thickness direction of the soft-packed batteries to form a In the cell stack 140, a flame retardant and high temperature resistant pad can be arranged between two adjacent groups of elongated cell modules 130. The wire harness isolation plate and bus bar assembly 120 is installed at both ends of the cell stack 140. The wire harness isolation plate and bus bar assembly 120 specifically includes a wire harness isolation plate 121 and a bus bar 122. The wire harness isolation plate 121 and the bus bar 122 can be set as one structure or split structure, the detailed structure of the wire harness isolation plat...

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Abstract

The invention discloses a tab limiting plate, a battery module, a battery pack and an automobile. A tab limiting plate main body comprises a base; the base is provided with more than two tab through holes and tab guide surfaces; the number of the tab guide surfaces is the same as that of the tab through holes; the positions of the tab guide surfaces are in one-to-one correspondence with the positions of the tab through holes; and at least one tab guide surface comprises a guide inclined surface, and the guide inclined surface inclines towards the same design position, so that a protruding partis formed on one surface of the base, and a limiting mechanism is arranged at the tip end of the protruding part and used for clamping the end part of a tab. According to the tab limiting plate provided by the invention, tabs of a plurality of flexibly-packaged battery cells in the same flexibly-packaged battery cell assembly can be intensively connected together in parallel in a designed postureto form a tab row; and when the flexibly-packaged battery cell assemblies are connected, the tabs of two adjacent flexibly-packaged battery cell assemblies can be intensively welded at one time; a plurality of flexibly-packaged battery cell tabs do not need to be welded respectively; and therefore, the welding time is shortened, the welding process is simple, and the production efficiency of thepower battery is improved.

Description

technical field [0001] The application belongs to the technical field of new energy vehicles, and in particular relates to a tab limiting plate, a battery module, a battery pack and a vehicle. Background technique [0002] With the continuous popularization of new energy vehicles, the requirements for the use of power batteries in new energy vehicles are becoming higher and higher. The high battery life of new energy vehicles is the basic demand of consumers, and improving the specific energy of the power battery is the key to improving the battery life of the whole vehicle. For common new energy vehicles, the power battery pack is more than 1m in length and width; while currently on the market, the length of the battery module is generally around 0.3m to 0.6m, so multiple batteries need to be installed in the power battery pack mod. [0003] When the power battery soft-packed cells are grouped into modules, the tabs of the soft-packed cells are often welded together throu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M50/502H01M50/505H01M50/509H01M50/516H01M50/528H01M50/244H01M50/249
CPCY02E60/10
Inventor 曹元璞史建鹏刘敏胡远森龚钰
Owner DONGFENG MOTOR CORP HUBEI
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