Battery Box Mounting Layout for Sealing and Connection Rigidity
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Solution Overview
Problem
The existing technologies for mounting boxes on vehicles often result in poor sealing and connection rigidity due to the distance between the mounting force points and the sealing member, leading to inadequate sealing and reduced structural integrity.
Innovation Solution
A box design with a top surface divided into a first region, a second region, and a sealing region, where the sealing region surrounds the first region and is used for mounting a sealing member, and the second region has multiple mounting portions to ensure the sealing member is effectively secured and the connection rigidity is enhanced.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If mounting portions are positioned far from the sealing member, then the connection strength between box and vehicle is improved, but the sealing effect deteriorates
Solution Approach 1:
The top surface of the box is segmented into distinct functional regions: a first region for accommodating battery cells, a sealing region surrounding the first region for mounting the sealing member, and a second region with multiple mounting portions for securing the box to the vehicle. This spatial segmentation allows the sealing member to be positioned close to the battery cells for effective sealing while mounting portions are positioned optimally for connection strength.
Solution Approach 2:
Different regions of the top surface are assigned different functions and properties: the sealing region is specifically designed for sealing operations with the sealing member, while the second region is designed for mounting operations. The distance constraint (30mm-200mm) ensures that mounting portions in the second region maintain optimal proximity to the sealing region, providing both sealing effectiveness and connection strength through localized functional optimization.
2Reliability
If mounting portions are positioned close to the sealing member, then the sealing effect is improved, but the connection rigidity deteriorates
Solution Approach 1:
The design transitions from a one-dimensional consideration of mounting position to a two-dimensional regional layout on the top surface. By defining specific regions (first region, sealing region, second region) and constraining the distance between mounting portions and sealing region within 30mm-200mm, the solution optimizes both sealing effect and connection rigidity through spatial arrangement in multiple dimensions.
3Power
If the distance between mounting force points and sealing member is large, then the mounting torque is reduced, but the arm of mounting force increases reducing connection rigidity
Solution Approach 1:
The patent specifies a quantitative parameter range for the distance between mounting portions and sealing region (30mm-200mm). This parameter optimization balances the mounting torque requirements with connection rigidity needs, ensuring that the arm of mounting force is neither too long nor too short, thereby achieving both adequate sealing effect and connection rigidity.
Data Source
AI summary
A box, a battery, and an electric apparatus are provided. The box has an accommodating cavity for accommodating a battery cell, and a top surface facing away from the accommodating cavity; a first region, a second region, and a sealing region located in between are formed on the top surface (of the box. The sealing region surrounds the first region, the sealing region is used for mounting a sealing member, and the second region is constructed with multiple mounting portions, the battery being mounted on an external apparatus through the mounting portions to make the sealing member in contact with the external apparatus. A shortest distance between a geometric center of an orthographic projection of the mounting portion in the second region and an outer edge of the sealing region is 30 mm-200 mm.