Alkaline battery sealing body structure

Abstract

The invention provides an alkaline battery sealing body structure which is installed in an alkaline battery, an isolation pipe is coaxially sleeved with a positive pole steel shell of the alkaline battery, an annular cavity between the positive pole steel shell and the isolation pipe is filled with a pressed positive pole ring, a negative pole cover is embedded in an opening in the upper end of the positive pole steel shell, and the positive pole steel shell is sleeved with a positive pole cover. An annular gap is reserved between the outer peripheral wall of the negative electrode cover and the inner peripheral wall of the positive electrode steel shell, the sealing body structure comprises a sealing ring which is located below the negative electrode cover, outwards extends to the inner peripheral wall of the positive electrode steel shell in the radial direction and upwards forms a turned-over edge, and the turned-over edge is inserted into the annular gap to seal the annular gap; an annular lug boss extends on the bottom surface of the sealing ring outside the isolation pipe along the circumferential direction of the positive electrode ring; the radial distance between the annular protruding part and the isolation pipe ranges from 0.05 mm to 0.3 mm, and the axial distance between the annular protruding part and the positive electrode ring ranges from 0.2 mm to 1.5 mm. The sealing body structure provided by the invention can effectively improve the anti-falling performance of the alkaline battery.

Description

technical field [0001] The invention relates to the field of alkaline battery manufacturing, in particular to an alkaline battery sealing body structure. Background technique [0002] At present, most of the alkaline battery production lines of various alkaline battery manufacturers in China have imported the production equipment, formula, accessory structure and technical process of Japan's FDK. A cylindrical structure with only the upper end open, an isolation tube is coaxially sleeved in the anode steel shell, the pressed anode ring is filled in the annular cavity between the anode steel shell and the isolation tube, the anode material is filled in the isolation tube, and the A sealing ring is arranged on the cover at the upper end opening, a negative electrode cover is embedded at the upper end opening of the positive steel shell, a current collecting pin is vertically fixed at the center of the bottom surface of the negative electrode cover, the sealing ring is located ...

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a sealing body structure for alkaline batteries, using the sealing body structure to assemble alkaline batteries can solve the problem of poor drop resistance of alkaline batteries existing in the prior art

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