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Cylindrical battery

A cylindrical battery and battery case technology, which is applied in the manufacturing of primary batteries, secondary batteries, battery pack components, etc. , Reliable fixed effect

Active Publication Date: 2009-04-01
SHENZHEN BAK POWER BATTERY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide an internal battery that can be well insulated and reliably fixed in view of the defect that the battery cells in the prior art cylindrical battery are easy to scatter and cause safety accidents. cylindrical battery

Method used

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Examples

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Embodiment Construction

[0021] Such as figure 1 As shown, in the preferred embodiment of the cylindrical battery of the present invention, it includes a casing 1 and a cell 10 housed in the casing 1, and the positive and negative ends of the casing 1 are sealed with a cover plate 2, The cover plate 2 is provided with a central hole 3, and the central hole 3 is provided with an insulating sheet 4 and a pole seat 5, 6, and the pole seat is an output end for the battery to export power to the product. Both the pole seats 5 , 6 and the insulating sheet 4 extend to the inside of the housing 1 , and the insulating sheet 4 insulates the pole seats and the cover plate 2 . A mandrel 20 is provided in the reel hole 11 at the center of the cell 10, an insulating spacer 30 is provided between the cell 10 and the pole seat, and a through hole 31 is provided on the insulating spacer 30, and a tab 7 is provided in the through hole 31. , the tabs 7 electrically connect the positive and negative pole pieces 12, 13 i...

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Abstract

The invention relates to a cylindrical battery, comprising an electric core, a lug and two insulating ring spacers which are contained in a battery shell body, a central boss which is protrusive to a winding shaft hole of the electric core is arranged in the center of each insulating ring spacer, a core rod is arranged in the winding shaft hole of the electric core, the central bosses of the two insulating ring spacers are respectively fastened and connected with the two ends of the core rod, and the electric core is clamped between the two insulating ring spacers. The two insulating ring spacers which are positioned between a positive electrode-negative electrode electric core and a polar are fastened and connected with the core rod by leaving the core rod for winding the electric core in the winding shaft hole, the core rod generates the pull force to the insulating ring spacers and clamps the two ends of the electric core by reasonably setting the length of the core rod and the connection size between the insulating ring spacer and the core rod, thereby fixing the position of a polar piece in the electric core. When in shock, as the two ends of the polar piece are clamped by the insulating ring spacers, the electric core is difficult to be scattered due to the shock, and the electric core can be further reliably fixed in a battery, thereby preventing the occurrence of safety accidents.

Description

technical field [0001] The present invention relates to battery technology, and more particularly, to a cylindrical battery. Background technique [0002] In the prior art, because the battery can be charged and discharged twice and has a high capacity, it is widely used in various products. Cylindrical batteries are common, which can be used in electric vehicles, electric bicycles and other products. Cylindrical batteries usually include a shell and a cell housed in the shell. Cover plates are provided at both ends of the shell, and positive and negative pole seats are respectively provided on the two cover plates to connect the power supply to the product. The cover plate and the pole seat are separated by an insulating sheet, and the pole seat extends to the inside of the battery. In order to prevent the short circuit caused by the collision between the pole seat and the battery core, an insulating spacer is provided between the positive and negative pole seats and the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/04H01M2/00H01M6/00H01M50/242H01M50/264H01M50/586
CPCY02E60/10Y02P70/50
Inventor 黄荣光丁景刚
Owner SHENZHEN BAK POWER BATTERY CO LTD
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