In-Vehicle Camera Bracket Fixation via Leaf Spring Pressing
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Solution Overview
Problem
Existing methods for attaching in-vehicle cameras to windshields often result in loose fixtures due to tolerances, leading to incorrect positional monitoring and potential windshield detachment or scratching during the attachment process.
Innovation Solution
An in-vehicle camera system with a bracket attached to the windshield, featuring a suspending portion and a pressing mechanism that fixes the camera body to the bracket using a hook and leaf spring, eliminating the need for jigs and ensuring secure attachment without loosening or scratching the windshield.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the bracket is pushed strongly with a jig to fix the in-vehicle camera body to the bracket, then the fixation is secure, but the windshield may come off from the vehicle or be scratched by the jig
Solution Approach 1:
The patent introduces a pressing member as an intermediary component between the bracket and the in-vehicle camera body. This pressing member applies gradual pressing force to fix the camera body to the bracket, avoiding the need to push the bracket strongly with a jig, thereby preventing windshield damage while ensuring secure fixation
Solution Approach 2:
The patent replaces the mechanical jig-based strong pushing method with a spring-based pressing mechanism. The pressing member with elastic deformation capability provides controlled, gradual force application, substituting the harsh mechanical intervention with a more refined mechanical system that achieves fixation without damaging the windshield
2Ease of manufacture
If tolerances are set to the button and hook for attachment, then the assembly is easier to manufacture, but the in-vehicle camera body is not completely fixed to the windshield causing looseness
Solution Approach 1:
The patent employs a dynamic pressing member that can elastically deform to accommodate manufacturing tolerances of the hook and button. The pressing member gradually applies force to push the in-vehicle camera body against the bracket, ensuring complete fixation despite tolerance variations, while maintaining ease of manufacture through the elastic deformation mechanism
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 provides a reliable and secure fixation of the in-vehicle camera to the windshield, preventing detachment and scratching, while maintaining accurate positional monitoring by eliminating backlash due to tolerances.
Implementation Method 1
the pressing means pushes the in-vehicle camera body to sandwich the in-vehicle camera body between the pressing means and the portion to be pressed of the bracket or the hook to thereby fix the in-vehicle camera to the bracket
Data Source
AI summary
In an in-vehicle camera, when an in-vehicle camera body is hooked on a hook portion of a bracket attached to a windshield, a leaf spring presses the in-vehicle camera body against the bracket to fix the in-vehicle camera body to the bracket. Therefore, the in-vehicle camera body can be attached to the windshield without permitting the windshield to come off from the vehicle by the bracket's being strongly pushed such as by a jig, or without permitting the jig to scratch the windshield. Since the in-vehicle camera body is fixed to the bracket by being pressed against the bracket by the leaf spring, there is no problem of causing backlash relative to the bracket.