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Lead acid accumulator cover capable of preventing exhaust port backfire detonation

A lead-acid battery and exhaust port technology, applied in battery pack parts, circuits, electrical components, etc., can solve problems such as threats to the safety of people and vehicles, battery explosion, etc., to eliminate explosions, reduce explosion capabilities, and improve use safety performance. Effect

Active Publication Date: 2008-03-05
FENGFAN
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

At this time, if there is an open flame at the exhaust port, the flammable gas may be ignited. In severe cases, the burning flame will be transmitted into the battery, causing the battery to explode, which seriously threatens the safety of people and vehicles.

Method used

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  • Lead acid accumulator cover capable of preventing exhaust port backfire detonation
  • Lead acid accumulator cover capable of preventing exhaust port backfire detonation

Examples

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Embodiment Construction

[0014] Referring to Fig. 1 and Fig. 3, the present invention is composed of a large cover 7 and an exhaust cover 1, and the two are butted and heat-sealed to form a battery cover.

[0015] Referring to Fig. 1 and Fig. 2, there are exhaust parts 8 symmetrically arranged on both sides of the exhaust cover 1, and each exhaust part is provided with a gas channel, and an air filter is arranged in the gas channel, and the exhaust port 6 is arranged at the outer end of the gas channel , At the side wall of the exhaust cover, the arrow in the figure shows the flow direction of the gas in the gas channel. Two air filters 3 and 4 are arranged in the gas channel, both of which are square or rectangular, and they are vertically arranged on the exhaust cover. In order to prevent the flammable gas from escaping from the exhaust port 6 during the charging process of the battery, which may ignite the danger of explosion of the battery in case of an open flame, a small air chamber 5 is added i...

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PUM

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Abstract

This invention relates to a lead-acid battery cover avoiding ignition caused by backfire at a vent composed of a large cover and a vent cover thermal-sealed at the joint faces, in which, either side of the vent cover is set with a vent part set with a gas channel containing a gas filter in it, and the vent is set at the side wall of the cover outside end of the channel, after the reform, a small gas chamber is added between the filter and the vent, and the exit of the chamber is at the short edge corresponding to the position of the vent, once fire appears at the vent, it can be exploded along the length direction of the gas chamber to be expelled from the battery smoothly, besides, the small gas chamber and a large vent provide a smooth gas channel so as to reduce explosion ability of combustible gas.

Description

technical field [0001] The invention relates to a motor vehicle accumulator part, in particular to a lead-acid accumulator cover which can effectively prevent the accumulator from detonating due to backfire at the exhaust port of the accumulator, and belongs to the technical field of accumulators. Background technique [0002] A lead-acid battery generally consists of a plurality of cells, each cell containing a sulfuric acid electrolyte. During battery charging, in addition to the normal electrochemical reaction, the battery will also generate heat, accompanied by the reaction of electrolyzed water, and the generated water vapor will be discharged from the exhaust port on the battery cover together with sulfuric acid and hydrogen-oxygen mixed gas. At this time, if there is an open flame at the exhaust port, the flammable gas may be ignited. In severe cases, the burning flame will be transmitted into the battery, causing the battery to explode, which seriously threatens the ...

Claims

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Application Information

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IPC IPC(8): H01M2/04H01M2/12H01M50/147H01M50/342H01M50/383
CPCY02E60/12Y02E60/10
Inventor 刘世忠张文龙
Owner FENGFAN
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