Battery sealing mechanism

By designing a battery sealing mechanism consisting of a support base, a lifting drive assembly, an upper mold assembly, and a lower mold assembly, and utilizing wedges to drive the lower mold assembly to close the mold and clamp the battery casing, a sealed connection between the battery casing and the positive electrode cap is achieved. This solves the problem of poor stability in existing technologies and improves the quality and stability of battery sealing.

CN224472665UActive Publication Date: 2026-07-07SHENZHEN KEJING STAR TECHNOLOGY COMPANY
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Patent Information

Application Number
CN202521558941.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-07-24
Publication Date
2026-07-07
Estimated Expiration
2035-07-24

AI Technical Summary

Technical Problem

The existing battery sealing mechanism has poor stability, resulting in poor battery sealing quality.

Method used

A battery sealing mechanism is designed, comprising a support base, a lifting drive assembly, an upper mold assembly, and a lower mold assembly. The lifting drive assembly drives the upper mold assembly and the lower mold assembly to close. The first wedge and the second wedge drive the lower mold assembly to move. The merged lower mold clamps the battery casing, and the upper mold covers the casing to achieve an inward bending of the upper part of the battery casing to wrap the positive electrode cap, thus achieving a sealed connection.

Benefits of technology

The battery sealing mechanism has a simple structure, low cost, and high stability, ensuring the quality and stability of battery sealing.

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Abstract

The utility model relates to the technical field of battery manufacturing equipment, in particular to a battery sealing mechanism. In the battery sealing mechanism, an upper mold assembly comprises an upper plate, an upper mold, a first wedge block and a second wedge block; the lower die assembly comprises a first lower plate, a second lower plate, a first butt joint piece, a second butt joint piece, a first lower half die and a second lower half die. The lifting driving assembly drives the upper plate to move, the first wedge block drives the first lower plate to move through the first butt joint piece, the second wedge block drives the second lower plate to move through the second butt joint piece, and the first lower half mold and the second lower half mold are combined to clamp a battery shell. And the upper mold covers the first lower half mold and the second lower half mold so as to drive the upper part of the battery shell to be bent inwards and wrap the periphery of the positive electrode cap. The battery sealing mechanism is simple in structure, low in manufacturing cost and high in stability, and the sealing quality of the battery is guaranteed.
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