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Sealing structure of terminal of lead-acid storage battery

A technology of lead-acid battery and sealed structure, which is applied in the direction of structural parts, battery pack parts, circuits, etc., can solve the problems of battery leakage, welding trouble, electrolyte spread, etc., to simplify the production process, save production costs, improve Effects on battery reliability and safety

Inactive Publication Date: 2013-02-27
SHUANGDENG GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With this structure, during the long-term use of the battery, the electrolyte is easy to spread from the joint between the lead bushing and the battery cover, causing the battery to leak and causing many safety hazards
Moreover, welding is more troublesome and the production cost is higher

Method used

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  • Sealing structure of terminal of lead-acid storage battery

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Embodiment Construction

[0008] The present invention is further illustrated below by way of examples.

[0009] Referring to the accompanying drawings, the battery terminal 1 is connected with the lead pole 5 inside the battery, the fastener 2 is threadedly matched with the battery terminal 1, and there is a sealing ring at the junction of the fastener 2, the lead pole 5 and the battery upper cover 3 4, and the contact surface between the battery cover and the lead pole has a tapered and raised sealing line 6. Tighten the fastener 2 to compress the sealing ring 4, and insert the sealing line 6 into the end face of the lead pole 5 to play a double sealing role.

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Abstract

The invention provides a sealing structure of a terminal of a lead-acid storage battery, comprising a battery upper cover, a battery terminal and a lead pole column. The improved points are as follows: the structure is internally provided with a fastener thread-matched with the battery terminal and a sealing ring positioned at the combined position of the upper cover, the terminal and the lead pole column; and a circle of conical convex sealing line is contacted with the battery upper cover. The sealing structure provided by the invention is in mechanical type sealing, does not need welding, is used for manufacturing and assembling the lead-acid storage battery, and can not generate liquid leakage in long-term use, so that the reliability and the safety of the battery are effectively improved; and the manufacturing process is simplified and the production cost is reduced.

Description

technical field [0001] The invention relates to a lead-acid battery terminal sealing structure, which belongs to the field of lead-acid battery structure design. Background technique [0002] Although lead-acid batteries have low energy and short deep cycle life compared with lithium batteries and nickel-metal hydride batteries, due to their small self-discharge, superior high and low temperature performance, mature production and recycling technologies, and low prices, this battery is still the world's largest production battery. One of the largest and most versatile power sources. Lead-acid battery terminal sealing issues are critical to battery performance and life. At present, the terminals of lead-acid batteries are welded by the lead bushing embedded in the cover and the lead pole inside the battery to form the terminal sealing structure of the battery. With this structure, during the long-term use of the battery, the electrolyte is likely to spread from the junction...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/08
CPCY02E60/12Y02E60/10
Inventor 孙中五杨宝峰楼志强周润
Owner SHUANGDENG GRP
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