Battery Protection Member With Deflecting Inclined Surface
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Solution Overview
Problem
The front end of battery packs in electric vehicles is exposed and vulnerable to damage from obstacles, especially during higher-speed collisions, as existing protection structures are inadequate to handle such impacts effectively.
Innovation Solution
A battery protection member with a main body and fixation portion is designed to be connected to the vehicle's bottom, featuring an inclination surface that deflects upon collision, creating a deformation space to absorb energy and protect the battery pack, along with a buffer cavity and flanges to prevent damage and wire harness interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the battery protection member is disposed apart from the battery pack to provide deformation space, then the protection capability against collision is improved, but the distance between the protection member and battery pack increases which may reduce protection effectiveness
Solution Approach 1:
The battery protection member is designed with dynamic deformation capability, allowing it to change position and shape during collision. The member can deflect and deform to absorb impact energy while maintaining an optimal distance from the battery pack, thus resolving the contradiction between needing space for deformation and maintaining protection effectiveness.
Solution Approach 2:
The protection member utilizes changes in geometric parameters during collision, specifically the inclination angle of its surface. As the member deforms, the inclination angle changes to optimize the distribution of collision forces, enabling effective protection while accommodating the necessary deformation space.
2Reliability
If the inclination surface angle is decreased to lift the vehicle and allow obstacle passage, then the protection against direct impact is improved, but the structural strength may be compromised
Solution Approach 1:
The inclination surface is designed to dynamically change its angle during collision. The surface can deform and adjust its inclination to lift the vehicle body and redirect obstacles, while the overall structural strength is maintained through the material properties and structural design of the protection member.
Solution Approach 2:
The inclination angle of the surface is designed as a variable parameter that changes during collision. By optimizing the range of angle changes and the structural configuration, the member can achieve both the desired vehicle lifting effect for obstacle redirection and maintain sufficient structural strength to withstand the collision forces.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution effectively reduces the risk of battery pack damage during collisions at higher speeds by deflecting and absorbing collision forces, ensuring comprehensive protection and preventing direct impact on the battery pack, while also safeguarding surrounding components like wire harnesses.
Implementation Method 1
it is possible for the battery protection member to be deflected and deformed to receive energy generated during the collision by the obstacle
Implementation Method 2
to receive energy generated during the collision by the obstacle
Implementation Method 3
it is possible to lift the whole vehicle at the inclination surface with the obstacle as a pivot so as to make the obstacle smoothly pass through
Data Source
AI summary
A battery protection member includes a main body portion and a fixation portion, wherein the battery protection member is connected with a bottom portion of a vehicle via the fixation portion, and the battery protection member is disposed at a front-end side of a battery pack and to be apart from the battery pack. At least a part of a front-end portion of the battery pack is in a range with the fixation portion as a center and having a rotation radius of the battery protection member as a radius. An inclination surface is formed at the front-end side of the main body portion to extend from an upper side toward a rear side and a lower side, and when the inclination surface receives a collision, the angle between the inclination surface and a horizontal direction is decreased.