Low pressure injection molded battery packaging structure

By setting injection-molded structural components and outer pads on the outside of the battery protection board and adjusting the position of the flexible circuit board, the problem of insufficient space on the rigid circuit board of the protection board is solved, thereby improving the encapsulation utilization rate and heat dissipation capacity.

CN224384485UActive Publication Date: 2026-06-19SCUD FUJIAN ELECTRONICS
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SCUD FUJIAN ELECTRONICS
Filing Date
2025-04-21
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

The bending area of ​​the existing battery protection board occupies the space at the head of the cell, resulting in insufficient space for the rigid board of the protection board, which affects the packaging utilization rate and heat dissipation capacity.

Method used

The low-voltage injection-molded battery packaging structure is adopted. By setting an injection-molded structural component on the outside of the rigid protective board, the flexible board extends out of the injection-molded structural component and covers the outer pad at the protrusion position of the flexible board. The bending position of the flexible board is adjusted to avoid occupying the space of the rigid protective board, thereby improving the packaging utilization rate and increasing the heat dissipation capacity.

Benefits of technology

This provides ample space for the rigid protection board, improves packaging utilization and heat dissipation, and ensures the packaging strength of the cell head.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224384485U_ABST
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Abstract

This utility model discloses a low-voltage injection-molded battery packaging structure, including a battery cell. The battery cell has an L-shaped bend at its edge, and an insulating gasket is attached to the bend head of the L-shaped bend. The battery cell's tabs are connected to a rigid protective plate, which is located outside the insulating gasket. An injection-molded structural component is disposed outside the rigid protective plate, and a component on the top of the rigid protective plate is encased within the injection-molded structural component. The rigid protective plate is connected to a flexible circuit board, which extends out of the injection-molded structural component. The extended portion of the flexible circuit board is connected to a PCB board. An outer gasket is disposed outside the injection-molded structural component to cover the extended portion of the flexible circuit board. By adjusting the position of the flexible circuit board, excessive space occupied by the flexible circuit board at the battery cell head is avoided, which helps to improve the overall packaging utilization rate and ensure the packaging strength of the battery cell head.
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