Battery Housing Flange Reinforcement to Prevent Welding Deformation
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Solution Overview
Problem
The structural limitations of battery housings and cover plates lead to deformation issues during assembly, affecting the reliability and quality of battery manufacturing.
Innovation Solution
A battery manufacturing method involving the use of a first housing with a reinforcing flange and a second housing with a corresponding flange, where the flanges are welded to form a strong connection, and the reinforcing parts are strategically cut to prevent deformation and optimize the battery structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the battery housing and cover plate are assembled using conventional structural design, then the assembly process is simple, but deformation occurs during assembly affecting reliability
Solution Approach 1:
The patent applies preliminary action by pre-forming reinforcing parts on the flanges before assembly. The reinforcing parts are created in advance on the first housing flange, and corresponding reinforcing structures are prepared on the second housing flange, so that when welding occurs, the structures are already optimized to prevent deformation, eliminating the need for complex real-time control during assembly
Solution Approach 2:
The patent applies local quality by adding reinforcing parts specifically at the flange regions where welding occurs, rather than strengthening the entire housing structure. The reinforcing parts are localized to the areas experiencing stress during assembly, providing targeted structural support where needed while keeping the rest of the housing design simple
2Strength
If flanges are welded to connect housing components, then connection strength is improved, but deformation occurs during welding process
Solution Approach 1:
The reinforcing parts are formed on the flanges before the welding operation. This preliminary preparation ensures that when welding heat is applied, the reinforcing structures are already in place to distribute thermal stress and prevent deformation, maintaining dimensional accuracy while achieving strong connections
Solution Approach 2:
The reinforcing parts act as beforehand cushioning by providing structural support that compensates for the deformation-causing effects of welding heat. The reinforcing structures are designed to absorb and distribute the thermal stresses before they can cause dimensional changes in the flange geometry
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This method enhances the structural integrity and reliability of the battery by preventing deformation during assembly and reducing the occupied area, while ensuring a reliable connection between the housing components.
Implementation Method 1
The first flange and the second flange are welded
Data Source
AI summary
A battery manufacturing method and a battery are provided. The battery manufacturing method includes: providing a first housing, including a bottom wall and a side wall, wherein the side wall extends upward from the bottom wall, the side wall encloses to form an opening, the side wall extends outward from the opening to form a first flange, and a first reinforcing part is formed on the first flange; providing a second housing, wherein the second housing includes an intermediate part and a second flange, the intermediate part covers the opening, and the second flange is in contact with the first flange; and welding the first flange and the second flange.