Battery Cross-Beam Mounting Structure With Sealed Through-Hole
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Solution Overview
Problem
The structural performance of battery mounting structures in electric vehicles needs improvement to enhance space utilization and stability while preventing liquid ingress.
Innovation Solution
A battery mounting structure that includes a cross beam with a through hole and a gap, utilizing a mounting structure with sleeves and extension portions to secure the battery, and incorporating sealing members to prevent liquid ingress, while optimizing space utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the mounting structure is made more complex to improve structural performance, then stability and strength improve, but device complexity increases
Solution Approach 1:
The mounting structure is divided into multiple functional components: a mounting plate with through holes for vertical mounting, extension portions for lateral extension, and sealing members for protection. This segmentation allows each component to perform its specific function efficiently while maintaining overall structural integrity without excessive complexity.
Solution Approach 2:
The extension portions are integrated into the mounting plate structure, with sealing members nested within grooves on the extension portions. This nesting approach allows multiple functions (mounting, extension, sealing) to be combined in a compact arrangement, improving structural performance without proportionally increasing complexity.
2Volume of moving object
If the gap between the cross beam and box wall is reduced to improve space utilization, then volume efficiency improves, but manufacturing precision requirements increase
Solution Approach 1:
The sealing member acts as an intermediary element positioned within a groove on the extension portion, filling the gap between the cross beam and box wall. This intermediary approach allows for a controlled, standardized gap dimension that can be manufactured with normal precision while still achieving high space utilization and providing sealing functionality.
Solution Approach 2:
The sealing member changes the functional parameter of the gap from a structural clearance to a sealed interface. By introducing this sealing element, the gap can be optimized for space utilization without requiring extremely tight manufacturing tolerances, as the sealing member compensates for normal manufacturing variations.
3Reliability
If sealing members are added to prevent liquid ingress, then reliability improves, but device complexity increases
Solution Approach 1:
The sealing function is merged with the mounting structure by integrating the sealing member into the extension portion's groove. This combination allows the mounting structure to simultaneously perform mechanical fastening and sealing functions, improving reliability without adding a separate, independent sealing system that would increase complexity.
Solution Approach 2:
The extension portion serves multiple functions: it extends the mounting plate laterally for improved mounting flexibility, provides a groove for housing the sealing member, and creates a sealed interface with the box wall. This multi-functionality improves both reliability through sealing and mounting capability without requiring separate dedicated components for each function.
Data Source
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AI summary
The present application provides a battery and an electric apparatus capable of improving the structural performance of a mounting structure in the battery. The battery includes: a battery cell; a box, configured to accommodate the battery cell, where the box includes a first wall and a second wall that are oppositely arranged, the first wall and the second wall intersect with a first direction, a first cross beam is disposed between the first wall and the second wall, the first cross beam includes a third wall that intersects with the first direction and is close to the first wall, a gap is disposed between the third wall and the first wall, and the first cross beam is provided with a first through hole extending along the first direction; and a mounting structure, configured to at least partially pass through the first through hole and abut against the third wall in the gap.