Onboard Camera Bracket Alignment Using Spring-Loaded Cylindrical Supports
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Solution Overview
Problem
Existing onboard camera mounting methods struggle to achieve precise positional alignment of the optical axis due to clearance issues between lug and notch components, leading to backlash in the camera housing.
Innovation Solution
The method involves using protruding portions with cylindrical faces on the camera housing that are pressed against corresponding notches in the bracket by pressurizing members, ensuring precise alignment by applying forces to predetermined positions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the camera is mounted by fitting lug portions into notch portions at four positions, then the camera can be fixed to the bracket, but precise positional alignment of the optical axis cannot be achieved due to clearance and backlash
Solution Approach 1:
The mounting mechanism is divided into two functional parts: (1) lug portions fitting into notch portions for basic positioning and fixation, and (2) pressurizing members (springs) that apply continuous pressing force to eliminate clearances. This segmentation allows each component to perform its specific function while achieving overall precise alignment.
Solution Approach 2:
The pressurizing members are pre-installed on the bracket to apply pressing force to the camera housing before final mounting is complete. This preliminary application of force ensures that when the lug portions are inserted into the notch portions, the clearances are already minimized, enabling precise positional alignment from the start.
2Ease of operation
If clearance exists between lug portion and notch portion, then the mounting structure allows for assembly tolerance, but backlash occurs in the camera housing affecting optical axis alignment
Solution Approach 1:
The pressing force parameter is introduced to dynamically change the effective clearance between the lug portion and notch portion. The pressurizing members apply continuous force that reduces the clearance to nearly zero during operation, while still allowing for assembly tolerance during the mounting process. This parameter change enables both ease of assembly and precise alignment.
3Manufacturing precision
If pressurizing members are added to apply forces to eliminate backlash, then positional alignment precision is improved, but the device complexity increases
Solution Approach 1:
The pressurizing members are designed as spring elements that automatically adjust to the camera housing position and maintain constant pressing force. The springs self-regulate the contact pressure between the pressurizing members and the camera housing, eliminating the need for external adjustment mechanisms or complex control systems, thus minimizing the increase in device complexity.
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
This approach allows for precise positional alignment of the onboard camera, eliminating backlash and ensuring accurate mounting.
Implementation Method 1
pressurizing members that press cylindrical faces of protruding portions against notches formed at respective insertion holes by applying forces to predetermined positions of the housing
Data Source
AI summary
Disclosed are an onboard camera holding method, an onboard camera, and a bracket that enable the onboard camera to be positionally aligned with precision. The holding method according to an aspect of the present technology is a method of holding the onboard camera that includes protruding portions having cylindrical faces respectively formed on a front face and left and right opposite side faces of a housing, by pressing the cylindrical faces of the respective protruding portions of the onboard camera against notches at insertion holes formed at positions of a bracket corresponding to positions of the respective protruding portions by use of forces applied by pressurizing members provided to the bracket, the pressurizing members applying the forces to predetermined positions of the housing. The present technology can be applied to the bracket of the onboard camera.