Electric Vehicle Battery Case Reinforcement Frame
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Solution Overview
Problem
The challenge is to increase the cruising distance of electric vehicles while maintaining a simplified vehicle body structure, as supporting heavy batteries requires sufficient stiffness, which can complicate the structure and increase weight.
Innovation Solution
The solution involves a battery case with a reinforcement frame that is detachably fastened to the main frame, reducing the stiffness required for the vehicle body and allowing the batteries to be stably supported, with the reinforcement frame acting as a stiff member to distribute the load and simplify the structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the batteries are increased in size to increase cruising distance, then the energy storage capacity is improved, but the weight of the batteries increases
Solution Approach 1:
The battery case is integrated with the reinforcement frame to form a unified structure that combines battery housing and structural reinforcement functions, eliminating the need for separate heavy frame components while supporting increased battery capacity
Solution Approach 2:
The reinforcement frame serves multiple functions: it reinforces the main frame structure, supports the heavy batteries, and provides mounting points for other components, allowing a single structure to fulfill multiple roles that would traditionally require separate components
2Stability of the object's composition
If the vehicle body structure is reinforced to support heavy batteries stably, then the stability is improved, but the structure becomes complex and the vehicle body weight increases
Solution Approach 1:
The battery case and reinforcement frame are merged into a single integrated structure, combining the functions of battery housing and structural reinforcement, which simplifies the overall vehicle body structure while maintaining stability
Solution Approach 2:
The reinforcement frame performs multiple functions including structural reinforcement, battery support, and component mounting, allowing one structure to replace what would traditionally require multiple separate components, thereby reducing complexity
3Stability of the object's composition
If the vehicle body structure is reinforced to support heavy batteries stably, then the stability is improved, but the vehicle body weight increases
Solution Approach 1:
The battery case is combined with the reinforcement frame structure, eliminating the need for separate heavy frame components while providing adequate support for heavy batteries, thereby reducing overall vehicle body weight
Solution Approach 2:
The reinforcement frame serves multiple purposes including supporting batteries, reinforcing the main frame, and providing mounting points, which allows the structure to be optimized for weight while maintaining stability through multi-functional design
4Stability of the object's composition
If the main frame stiffness is increased to support heavy batteries, then the battery support stability is improved, but the vehicle body complexity increases
Solution Approach 1:
The battery case is integrated with the reinforcement frame to create a unified structure that provides the necessary stiffness for battery support without requiring the main frame itself to be overly complex, as the reinforcement frame handles the stiffening function
Data Source
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AI summary
An electric vehicle (1) comprises a vehicle body (10) including a head pipe (5) supporting a steering shaft, and a main frame (11) extending rearward from the head pipe (5); an electric motor (42) which generates a driving power for driving a wheel (2, 3); and a battery case (20) accommodating a plurality of batteries (40) storing a DC power to be supplied to the electric motor (42), in a battery space (S1) in an interior of the battery case, wherein the battery case (20) includes a casing body (31), and a reinforcement frame (32) provided on the casing body (31) to reinforce the main frame (11), and the reinforcement frame (32) is fastened to the main frame (10) by a fastening member (108, 109).