Battery Box Lower Plate Reinforcement at Opening Positions
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Solution Overview
Problem
The existing battery boxes have weak overall strength, particularly at the opening position, making them prone to damage during assembly or handling.
Innovation Solution
A battery box design that includes a reinforcing beam fixed under the lower box body, with a first plate and a second plate forming a flow passage, and a protrusion and concave portion for secure connection, enhancing structural integrity at the opening position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If the lower box body adopts a lower plate opening design, then the overall mass of the lower box body is reduced, but the structural strength at the opening position becomes weaker and the box body becomes prone to damage
Solution Approach 1:
The patent applies local reinforcement by adding a reinforcing beam specifically at the opening position of the lower plate, while maintaining the overall lightweight design. The reinforcing beam is positioned locally where strength is needed (at the opening) without adding unnecessary weight to the entire box body structure.
Solution Approach 2:
The patent uses a composite structure combining the lower plate with a reinforcing beam element. The reinforcing beam may be made of different material properties or structural configuration compared to the lower plate, creating a composite system that provides both weight efficiency and localized strength enhancement.
2Weight of moving object
If the lower box body adopts a lower plate opening design, then the overall mass of the lower box body is reduced, but the overall strength of the box body becomes weak
Solution Approach 1:
The reinforcing beam is strategically positioned at the opening position where structural weakness occurs, providing localized reinforcement that improves overall box body strength without requiring reinforcement of the entire structure, thus maintaining weight efficiency.
Solution Approach 2:
The reinforcing beam is pre-installed or integrated into the lower plate structure before final assembly, ensuring that the strength enhancement is built-in from the beginning rather than added as a corrective measure, which optimizes the overall structural integrity.
Data Source
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AI summary
The present invention provides a battery box, which includes a lower box body (1), where the lower box body includes a first plate (11) and a second plate (12). The first plate (11) includes: a bottom wall (111); the second plate (12) is fixed to the bottom wall (111) from a bottom and engages with the bottom wall (111) to form a flow passage (F). The second plate (12) is provided with: a second protrusion (121) protruding to the first plate (11); and an opening (122) running through the second protrusion (121) in a height direction (H), the second protrusion (121) of the second plate (12) being connected to the bottom wall (111) of the first plate (11) in a sealed manner. The battery box further includes: a reinforcing beam (2) provided under the second plate (12); the reinforcing beam (2) is mounted at a position corresponding to the opening (122) and is fixedly connected to the first plate (11) and/or the second plate (12). A setting of the reinforcing beam (2) improves structural strength of the lower box body (1), and avoids risk of easy damage of the lower box body (1) at a position with weak structural strength.