Upper cover structure of lead acid battery

Abstract

The invention discloses an upper cover structure of a lead acid battery. The upper cover structure comprises a cover body and a cover plate, and the cover body is provided with a plurality of filling openings which are corresponding to various chambers leading to a storage battery box body; and the filling openings are respectively provided with a cover cap in a covering manner, a movable cover of the cover plate is arranged on each filling opening, the cover cap is provided with an air vent, and a closed structure which can automatically open a valve according to preset pressure is respectively arranged between the filling openings and the corresponding chambers of the storage battery box body. Compared with the prior art, the upper cover structure of the lead acid battery has beneficialeffects of being capable of limiting loss of sulfuric acid and water in formation and use, thus prolonging service life of the storage battery and avoiding environmental pollution; and the upper cover can be directly arranged on the box body in a capping manner and then formation is carried out, thus simplifying production procedures and then lowering production cost.

Description

technical field [0001] The invention relates to a lead-acid storage battery, in particular to the upper cover structure of the lead-acid storage battery. Background technique [0002] Lead-acid batteries are widely used in various fields of daily life and industrial production, such as automobiles, ships, aircraft, lighting, etc. Known lead-acid batteries generally include a box body, an upper cover, a plurality of groups of grids, terminal posts and sulfuric acid. The cover is sealed and closed on the box body so that each chamber is independent of each other. Sulfuric acid is filled in each chamber. Two terminal posts are set on the box body or the upper cover. Each grid is connected in series or in parallel before being electrically connected to the terminal post. . The outer surface of the upper cover is provided with a strip-shaped groove, and a plurality of liquid filling ports are opened in the groove, and each liquid filling port is sealed by plugging a cock, and e...

AI Technical Summary

Problems solved by technology

However, there are two disadvantages of grid formation without a cover. The first is that the production process needs to be divided into two steps, that is, the grid must be formed first, and then the upper cover is put on, which increases the production cost; In the process of formation, the acid mist volatilized will not only pollute the environment, but also the loss of acid will shorten the service life of the battery

[0004] During use, the acid in the battery can flow freely. When the battery is turned over or turned upside down, the acid inside can easily leak out from the vent head along the exhaust channel. Leaking acid will not only cause corrosion hazards and environmental pollution, It also shortens the life of the battery

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