Battery Spacer Traction Rib for Damage-Free Cell Assembly
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing methods of assembling cells into housings using push rods can cause damage due to excessive thrust, particularly on the negative electrode cover, leading to potential cell damage.
Innovation Solution
A spacer with a traction member, such as a traction rib, is integrated into the spacer body, allowing the cell to be pulled into the housing using a traction device, reducing the risk of damage and enhancing structural strength and pressure relief.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a push rod is used to push the negative electrode cover into the housing during cell assembly, then the assembly process can be completed, but the excessive thrust may cause damage to the negative electrode cover and cell
Solution Approach 1:
The patent inverts the traditional pushing method by using a traction device to pull the cell into the housing instead of pushing it. The traction member is connected to the spacer body, and the traction device applies a pulling force that distributes evenly across the cell structure, avoiding concentrated thrust on the negative electrode cover while maintaining assembly efficiency.
2Strength
If the spacer body is designed with a pressure relief groove and traction member, then structural strength and pressure relief are enhanced, but the device complexity increases
Solution Approach 1:
The patent merges multiple functions into the spacer body: it serves as both a structural support element and a pressure relief mechanism. The pressure relief groove is integrated directly into the spacer body, and the traction member is formed as part of the spacer structure, eliminating the need for separate components and reducing overall device complexity while maintaining enhanced strength and pressure relief capabilities.
Data Source
AI summary
The present disclosure provides a spacer, a battery unit, and a vehicle. The spacer includes a spacer body and a traction member. The spacer body includes a first side wall, a second side wall, and a base. The base is connected to the first side wall and the second side wall, respectively, to form a pressure relief groove. The traction member is formed in the pressure relief groove and is fixedly connected to the spacer body. The traction member is configured to be applied with a traction force to drive the spacer to move.