Detachable Battery Cell Collection Assembly for Easy Disassembly

Solution Overview

Problem

The existing collection assembly for battery packs, which uses a hot riveting connection to fix the plastic bracket to the FPC reinforcing plate, makes it difficult to disassemble and can lead to damage during disassembly, complicating maintenance and overhaul.

Innovation Solution

A collection assembly design that includes a mounting bracket attached to the cell and a circuit board with a detachable mounting portion, allowing for easy disassembly without causing damage, thereby simplifying maintenance and overhaul.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If hot riveting connection is used to fix the plastic bracket to the FPC reinforcing plate, then the connection strength is improved, but the ease of disassembly deteriorates and damage risk increases

Engineering Contradiction:

Improveconnection strengthVSAvoidease of disassembly

Core Design Contradiction:

StrengthVSEase of operation

Solution Approach 1:

The collection assembly is divided into separate modules: the circuit board, the mounting bracket, and the FPC reinforcing plate. The mounting bracket serves as an independent intermediate component that can be detached from both the circuit board and the FPC, enabling modular disassembly while maintaining strong connections during operation.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The mounting bracket acts as an intermediary component between the circuit board and the FPC reinforcing plate. It provides a detachable connection interface that allows the circuit board to be securely mounted during operation but easily removed when maintenance is needed, resolving the contradiction between connection strength and ease of disassembly.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Strength

If hot riveting connection is used to fix the plastic bracket to the FPC reinforcing plate, then the connection strength is improved, but the ease of repair deteriorates

Engineering Contradiction:

Improveconnection strengthVSAvoidease of repair

Core Design Contradiction:

StrengthVSEase of repair

Solution Approach 1:

The collection assembly is divided into separate modules: the circuit board, the mounting bracket, and the FPC reinforcing plate. The mounting bracket serves as an independent intermediate component that can be detached from both the circuit board and the FPC, enabling modular disassembly while maintaining strong connections during operation.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The mounting bracket acts as an intermediary component between the circuit board and the FPC reinforcing plate. It provides a detachable connection interface that allows the circuit board to be securely mounted during operation but easily removed when maintenance is needed, resolving the contradiction between connection strength and ease of disassembly.

Inventive Principle:

Principle #24Intermediary (Mediator)

Data Source

PatentEP4553949A1Collection assembly and battery pack

Publication Date: 2025.05.14 EVE ENERGY CO LTD

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AI summary

A collection assembly and a battery pack are provided. The collection assembly includes: a mounting bracket (20) that can be mounted on a cell (10); and a circuit board (30) having both a wiring portion (31) that can be connected to the cell (10) and a mounting portion (32), where the mounting portion (32) is detachably mounted on the mounting bracket (20).