Battery Casing Beam Joint With Internal Connecting Assembly
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Solution Overview
Problem
The existing connection methods between boundary beams and crossbeams in battery casings result in low connection strength, leading to inadequate structural strength and thermal deformation, which complicates the manufacturing and usage of batteries.
Innovation Solution
A casing design featuring a first beam with a groove and a second beam connected through a connecting assembly, where at least a portion of the connecting assembly is arranged inside both beams, allowing them to share external forces and enhance the connection strength by providing internal support.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If traditional connection methods (welding or support member with connecting member) are used between boundary beams and crossbeams, then the casing can be assembled, but the connection strength is low and structural integrity is insufficient
Solution Approach 1:
The connecting assembly is nested inside both the first beam and the second beam, with portions of the connecting assembly arranged inside the beams to provide internal support. This nested configuration allows the connecting assembly to strengthen the connection from the interior while the beams provide external protection and additional load-bearing capacity, resolving the contradiction between connection strength and structural integrity.
2Strength
If the connecting assembly is arranged inside the beams, then the connection strength improves, but the manufacturing complexity increases
Solution Approach 1:
The connecting assembly is divided into multiple portions, with at least a portion arranged inside the first beam and another portion inside the second beam. This segmentation allows each portion to be independently manufactured and positioned, simplifying the overall manufacturing process while maintaining the strength benefits of the internal arrangement.
3Strength
If the connecting assembly is arranged inside the beams, then the connection strength improves, but the device complexity increases
Solution Approach 1:
The connecting assembly merges the functions of connection and structural support by being arranged inside both beams. This single integrated component performs multiple functions: connecting the first beam and second beam while simultaneously providing internal support and enhancing structural integrity, thereby reducing overall device complexity despite the improved connection strength.
Data Source
AI summary
A casing of a battery, a battery and an electricity-consuming apparatus are provided by the present application. The casing of the battery includes a first beam, a second beam and a connecting assembly. A surface of the first beam is provided with a groove. The second beam is arranged on a side of the first beam provided with the groove. The first beam and the second beam is configured to limit a space for accommodating a battery cell. The connecting assembly is configured to connect the first beam with the second beam. At least a portion of the connecting assembly is arranged inside the first beam and the second beam.