Battery Box Riveting Structure With Integrated Fastener Sealing
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Solution Overview
Problem
Conventional battery box fasteners require additional sealing means to prevent moisture ingress, complicating the assembly process and increasing costs.
Innovation Solution
A battery box design featuring a self-sealing riveting member that passes through and is inserted into a hollow lower frame, providing direct sealing at multiple positions without the need for additional sealing means, using a pulling or pressing riveting member with internal and external threaded components and convex portions for effective sealing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If conventional fasteners (screws, bolts, or rivets) are used to connect the lower frame, heat exchanging plate, and protecting plate, then the structural connection is achieved, but additional sealing means are required to prevent moisture ingress through the fasteners
Solution Approach 1:
The patent combines the fastening function and sealing function into a single integrated self-sealing riveting member. The riveting member includes a riveting body that passes through multiple components and forms sealing protrusions at the connection interfaces, eliminating the need for separate sealing means while maintaining structural connection strength
Solution Approach 2:
The self-sealing riveting member performs both fastening and sealing functions automatically during the riveting process. The sealing protrusions are formed by the riveting operation itself, which deforms the riveting body to create sealing surfaces at the connection points between the lower frame, heat exchanging plate, and protecting plate
2Strength
If conventional fasteners with separate sealing means are used, then the connection strength is sufficient, but the assembling process becomes complicated and cost increases
Solution Approach 1:
The patent merges the fastener and seal into a single self-sealing riveting member that performs both functions simultaneously. The riveting body includes integrated sealing structures that are activated during the riveting process, reducing the number of assembly steps and eliminating the need for separate sealing component installation
Solution Approach 2:
The riveting member automatically creates sealing surfaces through its own deformation during the riveting process. The sealing protrusions are formed by the riveting operation itself, which deforms the riveting body to create sealing interfaces at the connection points, eliminating the need for separate sealing operations
Data Source
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AI summary
The present invention provides a battery box, which comprises: a heat exchanging plate; a lower frame positioned on the heat exchanging plate; a protecting plate positioned below the heat exchanging plate; and a self-sealing riveting member fixing the protecting plate, the heat exchanging plate and the lower frame together, the self-sealing riveting member passes through the protecting plate and the heat exchanging plate along an up-down direction, and the self-sealing riveting member is inserted into the lower frame and at least partially exposed to the lower frame, the self-sealing riveting member performs sealing at a first position where the self-sealing riveting member passes through the protecting plate, the self-sealing riveting member performs sealing at a second position where the self-sealing riveting member is inserted into the lower frame. It solves a sealing problem on conventional fasteners, and simplifies the assembling process and reduces the cost.