Vehicle Battery Unit Sealing Bolt Structural Integration
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing battery units in vehicles face challenges in securely holding battery modules while maintaining waterproof functionality, particularly when disposed under seats, as they often require rigid materials for structural support and sealing.
Innovation Solution
A battery unit design that secures the upper frame member to the battery cover using sealing bolts, which are seated in the battery cover, allowing the battery modules to be held by the battery cover without compromising waterproof integrity, and utilizes reinforcing members and fixing members to distribute loads without increasing weight or compromising sealing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the battery cover is made with rigid materials for structural support and sealing, then the strength and waterproof functionality are improved, but the weight increases
Solution Approach 1:
The battery unit structure is divided into separate functional components: the battery cover (34) for sealing and protection, the upper frame member (35) for structural support, and the sealing member (36) for waterproofing. This segmentation allows each component to be optimized independently, enabling the use of lighter materials in the battery cover while maintaining overall structural integrity through the distributed support system.
Solution Approach 2:
The invention employs a composite structure combining the battery cover, upper frame member, and sealing member to achieve both lightweighting and structural strength. The sealing member interfaces between the battery cover and battery case provide waterproof sealing without requiring the battery cover itself to be made of heavy rigid material, thus achieving weight reduction while maintaining protective functionality.
2Weight of moving object
If the battery module is suspended from the upper frame member, then the structural flexibility and weight distribution are improved, but the securing reliability may be compromised
Solution Approach 1:
The invention merges multiple securing functions into a unified structure: the upper frame member (35) serves both as the suspension support for the battery module and as the structural element that interfaces with the battery cover. The sealing member (36) is integrated at the interface between the battery cover and battery case, creating a combined sealing and securing system that maintains reliability while enabling the suspended configuration.
Solution Approach 2:
The sealing member (36) acts as an intermediary element that connects and secures the battery cover to the battery case while maintaining the suspended configuration of the battery module. This intermediary component ensures reliable sealing and securing without requiring direct rigid attachment that would compromise the suspended state and weight distribution benefits.
3Reliability
If sealing members are used to seal the gap between battery case and battery cover, then waterproof functionality is improved, but the device complexity increases
Solution Approach 1:
The sealing member (36) is designed to perform multiple functions simultaneously: it seals the gap between the battery cover and battery case to provide waterproof functionality, while also serving as a securing element that helps attach the battery cover to the battery case structure. This multi-functionality reduces the need for separate sealing and securing components, thereby simplifying the overall device structure while maintaining reliable waterproofing.
Data Source
AI summary
A battery unit includes a battery module, an upper frame member, a battery case, a battery cover, a sealing member, and a sealing bolt. The battery module is suspended from the upper frame member. The battery case has an opening to accommodate the battery module in the battery case. The battery cover is to cover the opening of the battery case. The sealing member is to seal a gap between the battery case and the battery cover. The sealing bolt is provided on the battery cover and secured to the upper frame member to connect the battery module and the battery cover via the upper frame member.