Charger Bracket Sliding Slot Decoupling Mechanism
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Solution Overview
Problem
Conventional charger brackets for hybrid or electric vehicles, located at the front end module, do not decouple from the module during collisions, resulting in high impact loads being transferred to pedestrians or objects, as they are not easily deformed and thus transfer forces effectively.
Innovation Solution
A charger bracket with a mounting portion and multiple mounting leg portions featuring sliding slots and link portions that allow decoupling from the vehicle's body during a collision, reducing the impact load by guiding the bracket and charger to move towards the body, utilizing inclined portions and a fixing groove to facilitate separation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the charger bracket is made with high strength and rigid structure, then the bracket can firmly fix the charger to the FEM, but the bracket transfers high impact load to pedestrians during collision
Solution Approach 1:
The mounting leg portions are designed to be movable relative to the mounting portion through sliding slots and link portions, allowing the bracket structure to dynamically adjust during collision. The mounting leg portions can slide along the sliding slots and separate from the FEM body, transforming the rigid fixed structure into a dynamic decoupling system that reduces impact transmission to pedestrians while maintaining charging function during normal operation
Solution Approach 2:
The bracket is divided into separable components: the mounting portion and multiple mounting leg portions that can detach from the FEM body. This segmentation allows the mounting leg portions to separate from the FEM during collision through the sliding slot mechanism, preventing the transmission of high impact forces to pedestrians while maintaining structural integrity for normal use
2Reliability
If the charger bracket is directly coupled to the FEM body, then the fixing is stable and reliable, but the bracket cannot decouple during collision to reduce impact load
Solution Approach 1:
The sliding slot mechanism acts as an intermediary between the mounting leg portions and the FEM body. This intermediary structure allows the bracket to maintain reliable fixed coupling during normal operation while enabling controlled decoupling during collision through the sliding and separation action along the slots, thus resolving the contradiction between fixing reliability and impact load reduction
3Device complexity
If the mounting leg portions are fixed perpendicular to the mounting portion, then the structural simplicity is maintained, but the ability to decouple during collision is limited
Solution Approach 1:
The mounting leg portions are designed with movable capability relative to the mounting portion through sliding slots, transforming the static perpendicular arrangement into a dynamic structure. This allows the leg portions to slide and separate from the FEM body during collision while maintaining the simple perpendicular mounting configuration during normal operation, achieving decoupling functionality without significantly increasing structural complexity
Data Source
AI summary
A charger bracket for reducing an impact load may include a mounting portion to which a charger located at a front end module (FEM) of a vehicle is mounted to protrude. A plurality of mounting leg portions are provided at the mounting portion so as to be directed toward a body forming the FEM. A sliding slot is formed at each of the plural mounting leg portions and being detachably coupled to a fastening part formed in the body.