A battery pack of a seat tub type

By employing a bucket-type structure and multiple insulation protection designs, the problems of low cell layout efficiency and complex connections in battery packs have been solved, resulting in a battery pack with high energy density, low internal resistance, and high reliability, while improving assembly convenience and safety.

CN224595690UActive Publication Date: 2026-08-04GUANGDONG LONGJI POWER TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202521813661.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-26
Publication Date
2026-08-04
Estimated Expiration
2035-08-26

AI Technical Summary

Technical Problem

Traditional battery packs suffer from problems such as low cell layout efficiency, insufficient space utilization, complex connection structure, and inadequate heat dissipation and safety, resulting in low energy density, high internal resistance, high failure risk, and cumbersome assembly process.

Method used

It adopts a bucket-type structure, including a bucket body and a bucket lid, with built-in battery modules and elastic pressure plates. It uses positioning seats and electrical contact plates to arrange the battery cells in an array, integrates a test circuit PCB board, realizes stable connection and online testing of the battery cells, and combines multiple insulation protection designs.

Benefits of technology

It improves the structural stability and shock resistance of the battery pack, reduces temperature rise, simplifies the assembly process, enhances safety and testing efficiency, and improves the overall performance of the battery pack.

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Abstract

This application relates to a bucket-type battery pack, including battery cells and a circuit protection board, as well as a bucket body and a bucket lid. A battery module is housed inside the bucket body. The top of the inner wall of the bucket lid has an elastic pressure plate that abuts against the top surface of the battery module. Multiple mounting terminals protrude from the top of the battery module. The elastic pressure plate has clearance holes adapted to the mounting terminals. The circuit protection board is mounted on the mounting terminals. Two charging / discharging connectors, respectively electrically connected to the positive and negative terminals of the battery module, are located on both sides of the bucket lid. This utility model belongs to the field of battery pack technology. It adopts a bucket body + bucket lid structure, with a built-in battery module. The elastic pressure plate fixes the battery module, and the bucket structure provides a stable container. The elastic pressure plate ensures tight contact, improves structural stability, guarantees reliable circuit connections, has good shock resistance, and low contact resistance.
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