Onboard Electronics Support Structure for Frontal Collision Detachment
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Solution Overview
Problem
Existing support structures for onboard electronic device assemblies, such as automatic driving kits and battery control assemblies, fail to protect the electronics from damage during vehicle frontal collisions, as they either cause the assembly to tilt forward, leading to potential damage from support members or break the housing.
Innovation Solution
A support structure comprising a bottom bracket, a support rod, and at least one front bracket with a flange and hook mechanism that secures to the vehicle body, allowing the support rod to detach from the brackets during a forward tilt, thereby preventing damage to the electronics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the bracket is attached to the front wall of the housing to support the electronic device assembly, then the assembly is supported during normal operation, but the front wall of the housing may be broken by the bracket during a frontal collision, causing damage to the electronics inside
Solution Approach 1:
The support structure is divided into multiple segments: a bottom bracket supporting the bottom wall, support rods extending forward, and front brackets supporting the front portions of the support rods. This segmentation distributes the support function across multiple points, preventing any single bracket from concentrating force on the front wall during collision.
Solution Approach 2:
Support rods are introduced as intermediary elements between the bottom bracket and the front brackets. These rods transfer and distribute the support forces, preventing direct contact between the front brackets and the housing front wall, thereby eliminating the risk of bracket-induced damage to the housing during collision.
2Strength
If the support rod is rigidly fixed to the front bracket to provide strong support, then the support structure is stable, but the support rod cannot detach during collision, causing damage to the electronic device assembly
Solution Approach 1:
The connection between the support rod and front bracket is designed to be dynamic rather than rigid. The front bracket includes a hook that can engage with the support rod during normal operation to provide strong support, but can detach from the support rod when excessive forward force is applied during collision, allowing the support rod to move forward and absorb impact energy.
Solution Approach 2:
The mechanical properties of the connection between the support rod and front bracket are designed to change under different load conditions. During normal operation, the connection maintains high strength through hook engagement. During collision, the connection parameters change to allow detachment, transforming the rigid support into a sacrificial element that protects the electronics.
Data Source
AI summary
The bottom bracket supports the bottom wall of the housing of the electronic device unit. The rear end of the support rod is in contact with the front wall of the housing. The support rod extends from the front wall of the housing to the front of the vehicle. A front bracket supports the front portion of the support rod. The front bracket has a flange and a hook. The flange is secured to the vehicle body in an area adjacent to the support rod in the width direction. The hook is connected to the flange at one end. The hook extends from the vehicle-width side of the support rod across the top surface of the support rod to the opposite side of the vehicle-width side. Furthermore, the hook is free-ended at the other end.