Headlamp Mounting Assembly for Pedestrian-Safe Impact Displacement
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Solution Overview
Problem
Existing vehicle headlamp mounting assemblies face a challenge in achieving a balance between pedestrian safety, where the mounting structure needs to be easily collapsible or displaced upon collision, and durability, requiring sufficient rigidity and impact resistance.
Innovation Solution
A vehicle headlamp mounting assembly comprising an upper, middle, and lower mounting bracket, a fender bracket, a connecting plate, and a reinforcing bracket, with blind rivets and strategically positioned mounting structures to ensure displacement during collisions while maintaining structural integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the headlamp mounting structure is made strong and rigid, then durability and impact resistance are improved, but pedestrian safety is worsened because the structure cannot easily collapse or displace during collision
Solution Approach 1:
The mounting structure is divided into multiple segments including upper mounting bracket, middle mounting bracket, lower mounting bracket, fender bracket, connecting plate, and reinforcing bracket. These segmented components are connected through blind rivets that can break during collision, allowing the structure to collapse in a controlled manner to protect pedestrians while maintaining overall strength during normal operation
Solution Approach 2:
The blind rivets are designed with specific material and structural parameters that allow them to maintain strength under normal conditions but break at predetermined stress levels during pedestrian collisions. This parameter design enables the mounting structure to transition from a strong state during operation to a collapsible state during impact, resolving the contradiction between strength and pedestrian safety
2Object-affected harmful factors
If the headlamp mounting structure is made weak and collapsible, then pedestrian safety is improved, but durability and impact resistance are worsened because the structure cannot maintain sufficient rigidity under external excitation
Solution Approach 1:
The mounting structure is divided into multiple segments including upper mounting bracket, middle mounting bracket, lower mounting bracket, fender bracket, connecting plate, and reinforcing bracket. These segmented components are connected through blind rivets that can break during collision, allowing the structure to collapse in a controlled manner to protect pedestrians while maintaining overall strength during normal operation
Solution Approach 2:
The mounting structure employs composite design combining multiple brackets, plates, and blind rivets made from different materials with optimized properties. The blind rivets use materials and heat treatment processes that provide high strength during normal operation but controlled breakage during collision, while the brackets and plates provide structural rigidity. This composite approach resolves the contradiction between overall strength and localized collapsibility
Data Source
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AI summary
The invention belongs to the technical field of vehicles, and aims to provide a headlamp mounting structure which can achieve a trade-off between the "weakness" for pedestrian safety and protection and the "strength" for durability, impact resistance and modal parameters. To this end, the invention provides a vehicle headlamp mounting assembly and a vehicle. The vehicle headlamp mounting assembly includes an upper mounting bracket, a middle mounting bracket, a lower mounting bracket, a fender bracket, a connecting plate, and a reinforcing bracket. A bottom end of the reinforcing bracket is connected to the lower mounting bracket via at least one blind rivet. A first mounting structure is provided near an inner end of the upper mounting bracket. The fender bracket is provided with a second mounting structure. A third mounting structure is provided near the bottom end of the middle mounting bracket. A fourth mounting structure is provided near the bottom end of the reinforcing bracket. When assembled, an upper part of a headlamp is fixed via the first mounting structure and the second mounting structure, and a lower part of the headlamp is fixed via the third mounting structure and the fourth mounting structure.