Battery top cover, single battery and electric device

By setting up a fool-proof structure on the battery top cover, the problem of confusion between positive and negative electrode parts is solved, the assembly yield and battery safety are improved, the cost is reduced, and the resistance stability is enhanced.

CN223347971UActive Publication Date: 2025-09-16SHENZHEN KEDALI INDUSTRY CO LTD
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Patent Information

Application Number
CN202422708178.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-07
Publication Date
2025-09-16
Estimated Expiration
2034-11-07

AI Technical Summary

Technical Problem

During the assembly process of existing battery top covers, the positive and negative electrode parts are easily confused, resulting in installation errors, reduced yield and increased costs.

Method used

Anti-fool-proof structures, such as anti-fool-proof protrusions and anti-fool-proof grooves, are provided on the plastic parts on the positive and negative electrodes of the battery top cover to ensure that the positive and negative electrode parts are installed separately. By providing a first anti-fool-proof protrusion and a first anti-fool-proof groove on the outer peripheral wall of the plastic part on the positive electrode and the top cover, the plastic part on the positive electrode is distinguished from the plastic part on the negative electrode to avoid interchange of assembly positions.

Benefits of technology

The assembly yield of the battery top cover is improved, the manufacturing cost is reduced, and the safety and resistance stability of the battery are enhanced. The fool-proof structure increases the contact area to facilitate short-circuit shunting.

✦ Generated by Eureka AI based on patent content.
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Abstract

The utility model belongs to the technical field of batteries, and discloses a battery top cover, a single battery and an electric device. The battery top cover comprises a top cover piece, a positive pole upper plastic piece, a positive pole column, a negative pole upper plastic piece and a negative pole column, the positive pole column and the negative pole column are arranged on the top cover piece in an insulated and sealed mode, and the positive pole upper plastic piece is arranged between the first end of the positive pole column and the top cover piece so that the positive pole column and the top cover piece can be connected in an insulated mode; the cathode upper plastic part is arranged between the first end part of the cathode column and the top cover part, so that the cathode column and the top cover part are insulated; one of the outer peripheral wall of the positive electrode upper plastic part and the top cover part is provided with a first fool-proof protrusion, the other one is provided with a first fool-proof groove, and the first fool-proof protrusion is connected with the first fool-proof groove in a matched mode. According to the battery top cover, the fool-proof effect of parts can be realized, assembly errors are avoided, the assembly yield of the battery top cover is improved, and the manufacturing cost is reduced.
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