Battery Casing Position-Limiting Structure for Welding Alignment
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Solution Overview
Problem
In battery manufacturing, positioning the connecting member within the battery casing is challenging, leading to inefficiencies and yield issues due to friction and misalignment.
Innovation Solution
A battery design featuring a position-limiting portion on the casing member, which limits the position of the connecting member, and a manufacturing method that includes forming this portion at a predetermined distance from the opening, allowing easy alignment and subsequent one-time welding with the cover plate and casing member.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the connecting member is placed in the battery casing without a position-limiting portion, then the manufacturing process is simple, but the connecting member cannot be positioned accurately leading to misalignment and low productivity
Solution Approach 1:
The battery casing is segmented into functional zones: the position-limiting portion (protrusion or rib) provides positioning function, while the welding area provides joining function. This segmentation allows each zone to perform its specific task effectively, resolving the contradiction between positioning accuracy and structural simplicity.
Solution Approach 2:
The position-limiting portion is pre-formed on the battery casing before the connecting member is inserted. This preliminary positioning structure guides the connecting member into the correct position during assembly, ensuring accurate alignment without requiring complex adjustment mechanisms during the welding process.
2Productivity
If the connecting member is positioned without a position-limiting portion, then the assembly process is fast, but friction and misalignment occur reducing yield
Solution Approach 1:
The position-limiting portion acts as an intermediary element between the battery casing and the connecting member. It mediates the positioning relationship, ensuring the connecting member is correctly oriented and positioned before welding, thereby preventing misalignment and improving assembly yield without significantly slowing down the manufacturing process.
3Ease of operation
If the connecting member is allowed to move freely in the battery casing, then the ease of assembly is high, but misalignment and friction reduce manufacturing yield
Solution Approach 1:
The position-limiting portion is pre-formed on the battery casing before the connecting member is inserted. This preliminary positioning structure guides the connecting member into the correct position during assembly, ensuring accurate alignment without requiring complex adjustment mechanisms during the welding process.
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 design enhances production efficiency and yield by facilitating easy alignment and reducing friction during the manufacturing process, improving the safety and reliability of the battery.
Implementation Method 1
the casing member, the cover plate, and the connecting member are connected by welding
Data Source
AI summary
A battery and a manufacturing method for the same are provided. The battery includes a battery casing, a cell and a connecting member, the battery casing includes a casing member and a cover plate. The casing member and the cover plate are connected to form an accommodation space. The cell is arranged in the accommodation space of the battery casing. The casing member is provided with a position-limiting portion for limiting a position of the connecting member. The connecting member is engaged with the position-limiting portion, and the casing member, the cover plate, and the connecting member are welded. By setting a position-limiting portion at a predetermined distance from the opening of the casing member, the position-limiting portion is used to limit the position of the connecting member.