Battery Module Fixing Assembly With Mounting Groove
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Solution Overview
Problem
The existing methods for fixing the positive and negative output poles of battery modules, either by riveting a bolt directly onto the output pole connection sheet or embedding it in a harness isolation board, lead to damage of the welding strength between the output pole connection sheet and the electrode terminal, and fracture of the harness isolation board due to material differences.
Innovation Solution
A battery module design featuring a harness isolation board with a mounting groove and an output pole connection sheet with a through hole, utilizing a fixing assembly with a connecting member engaged in the mounting groove and a fastening member that secures the output pole connection sheet, allowing for enhanced connection and anti-torque strength without directly applying force to the output pole connection sheet or harness isolation board.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the bolt is used to lock the output pole connection sheet and copper bar, then electrical connection is achieved, but the locking force directly applied to the output pole connection sheet destroys the welding strength
Solution Approach 1:
The fixing assembly separates the electrical connection function (performed by the output pole connection sheet and copper bar) from the mechanical fastening function (performed by the fastening member and connecting member). This allows the electrical connection to be maintained while the mechanical locking force is applied to the connecting member instead, protecting the welding strength.
Solution Approach 2:
The connecting member acts as an intermediary that bears the mechanical locking force, preventing it from being directly applied to the output pole connection sheet. This protects the welding joint while still enabling secure electrical connection through the fastening member.
Data Source
AI summary
The present disclosure provides a battery module, which comprises: a harness isolation board provided with a mounting groove; an output pole connection sheet; and a fixing assembly. The fixing assembly comprises: a connecting member placed in the mounting groove to be fixed on the harness isolation board; and a fastening member securely connected to the connecting member and fixing the output pole connection sheet. The connecting member and the fastening member are separately formed and securely connected together, the fastening member is fixed on the harness isolation board via the connecting member, thus the fixing manner between the connecting member and the harness isolation board is not related to the fastening member, and in turn it only needs to improve the structure of the connecting member and the harness isolation board to enhance the connecting strength and the anti-torque effect between the fixing assembly and the harness isolation board.