Power cell module connecting structure and connecting method thereof

A power battery and connection structure technology, which is applied to battery pack components, structural parts, circuits, etc., can solve the problems affecting the overall life and safety of battery packs, shorten the battery life of electric vehicles, and high installation and maintenance costs, so as to achieve assembly efficiency High, convenient assembly, convenient and fast installation and maintenance

Active Publication Date: 2013-04-10
SHENZHEN BUSBAR SCI TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its disadvantages are: the output terminals are connected by bolts and nuts, which is prone to connection failure due to vehicle vibration and looseness, which affects the overall life and safety of the battery pack and greatly shortens the battery life of electric vehicles; in addition, the battery assembly of this structure is very cumbersome , high installation and maintenance costs

Method used

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  • Power cell module connecting structure and connecting method thereof
  • Power cell module connecting structure and connecting method thereof
  • Power cell module connecting structure and connecting method thereof

Examples

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Embodiment Construction

[0022] The present invention will be further described below in conjunction with the accompanying drawings of the description.

[0023] Such as figure 1 As shown, a power battery module 1 connection structure, the power battery module 1 is composed of several single batteries 11, and the positive and negative poles of the single batteries are connected with pins 12 respectively. Such as figure 2 As shown, the adjacent power battery modules 1 are connected through a connection structure, and the connection structure includes a PCB board 2, and the PCB board 2 is provided with more than one single battery 11 in the power battery module 1. A corresponding circular or square connector 3 . Such as image 3 , 4 As shown, the connector 3 includes a cylindrical metal shell 31 connected at both ends, a connection hole 34 is formed in the connector 3, and the material of the shell 31 is copper. The shell 31 is provided with a spring piece 32 with good elastic deformation and twist...

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Abstract

The invention relates to a power cell module connecting structure method. A power cell module is composed of a plurality of single cell groups, the adjacent power cell modules are connected through a connecting structure, the connecting structure comprises a PCB (printed circuit board), and the PCB plate is provided with more than one connector; the connector comprises a metal shell the two ends of which are communicated, the shell is internally provided with a spring piece, and a support ring is arranged between the spring piece and the inner wall of the shell and is used for fixing the spring piece and the shell; the PCB plate is provided with through holes, the shell of the connector is electrically connected with the PCB plate, and connecting holes are formed in the connector; and the contact pins of each single cell in a power cell module on the two sides of the PCB are inserted into the connecting holes of the corresponding connector, the contact pins are kept to be electrically connected with a spring piece in the connector, and the monomer cells in the adjacent power cell modules are electrically connected through the connector. According to the invention, the connector is used for replacing a bolted connection, the contact pins and the connector are elastically connected, and the structure can not generate a loose phenomenon because of vibration.

Description

technical field [0001] The invention relates to the connection of power batteries, in particular to the connection structure and connection method of batteries used in electric vehicles, electric buses or other motorized equipment. Background technique [0002] In the connection between single cells, contact resistance is a very important characteristic. The greater the contact resistance, the greater the thermal power consumed by the battery pack during operation, and the contact resistance is inversely proportional to the contact pressure. At present, bolts and nuts are mostly used for the connection of power batteries to realize the series-parallel connection between single battery cells to assemble and manufacture large-capacity power lithium batteries. Its disadvantages are: the output terminals are connected by bolts and nuts, which is prone to connection failure due to vehicle vibration and looseness, which affects the overall life and safety of the battery pack and g...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/20
CPCY02E60/10
Inventor 刘泽标林国军
Owner SHENZHEN BUSBAR SCI TECH DEV
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