Battery Enclosure Frame Press-Fit Assembly Without Weld Defects
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Solution Overview
Problem
The production efficiency of battery enclosure frames is hindered by issues such as blowouts, false welds, and collapse during the welding process, leading to insufficient strength and low assembly yield.
Innovation Solution
The enclosure frame design features a pair of side plates and end plates connected through a press-fitting mechanism, where protrusions on the side plates are embedded into grooves on the end plates, eliminating the need for welding and ensuring high connection strength and assembly quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If welding is used to connect side plate and end plate, then connection strength is improved, but production efficiency deteriorates due to defects like blowouts, false welds, and collapse
Solution Approach 1:
The patent replaces the welding process with a mechanical press-fitting connection system. The side plate and end plate are connected through grooves and protrusions that engage mechanically, eliminating the need for thermal welding processes that cause defects while maintaining connection strength.
Solution Approach 2:
The connection structure is segmented into complementary components: grooves on one plate and protrusions on the other. This segmentation allows for precise positioning and reliable mechanical engagement without the complexity and defects of welding, improving both connection reliability and production efficiency.
2Strength
If welding is used to ensure enclosure frame strength, then structural integrity is improved, but assembly quality deteriorates due to weld defects
Solution Approach 1:
The patent substitutes the welding process with a mechanical press-fitting system using grooves and protrusions. This mechanical connection eliminates weld defects such as blowouts, false welds, and collapse, thereby improving assembly quality while maintaining the structural integrity of the enclosure frame.
Solution Approach 2:
The groove-protrusion structure is designed to self-align and self-lock during assembly. The geometric complementarity of the grooves and protrusions ensures precise positioning and reliable connection without requiring complex welding procedures, improving both assembly quality and manufacturing precision.
3Ease of manufacture
If welding process is used, then connection is achieved, but harmful factors increase due to blowouts, false welds, and collapse
Solution Approach 1:
The patent replaces the welding process with a mechanical press-fitting connection system. The side plate and end plate are connected through grooves and protrusions that engage mechanically, eliminating the need for thermal welding processes that cause defects while maintaining connection strength.
Solution Approach 2:
The patent converts the potential harm of welding defects into a benefit by designing a mechanical connection system where the groove-protrusion geometry itself prevents defects. The mechanical engagement provides inherent resistance to blowouts, false connections, and collapse without requiring welding, turning the connection process into a defect-free operation.
Data Source
AI summary
This application relates to an enclosure frame, a battery, an electric device, and a method and device for manufacturing enclosure frame, and pertains to the field of battery technologies. The enclosure frame is applied to a battery. The enclosure frame includes: a pair of side plates, where the pair of side plates are disposed opposite each other in a first direction; and a pair of end plates, where the pair of end plates are disposed opposite each other in a second direction perpendicular to the first direction, and the end plates are disposed between the pair of side plates. The enclosure frame has high assembly quality and high production efficiency.