Front Camera Assembly with Visual Positioning for Minimal Lens Gaps
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Solution Overview
Problem
The existing front camera assembling structures in electronic devices face challenges in minimizing the gap size between the lens and the camera hole, leading to a wider lens black edge that affects user vision and reduces the screen-to-body ratio, while also increasing processing and assembly difficulties due to high precision requirements for the limiting grooves and outer walls.
Innovation Solution
A front camera assembling method that uses a visual positioning system to accurately position the lens and camera hole, reducing the number of parts and size chain, and employs an accommodation groove to fasten the camera body, minimizing the gap size and precision requirements, thereby allowing for a smaller camera hole aperture.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a limiting groove on the middle frame and outer wall of the camera body are used to position the lens, then the lens position is determined, but the quantity of parts increases and the size chain becomes long, leading to large cumulative tolerance
Solution Approach 1:
The patent extracts and eliminates the limiting groove structure from the middle frame, replacing it with a direct positioning relationship between the camera body and touchscreen. This removes unnecessary intermediate parts and simplifies the assembly structure while maintaining positioning precision.
Solution Approach 2:
The patent merges the positioning function into the camera body and touchscreen assembly itself, rather than relying on separate limiting components. The camera body is directly assembled to the touchscreen with the lens positioned relative to the camera hole, combining multiple functions into fewer parts.
2Adaptability or versatility
If the camera hole aperture is designed to be relatively large to meet lens eccentricity, then the lens can be installed, but the gap size between the camera hole and lens increases, widening the lens black edge
Solution Approach 1:
The patent changes the positioning parameters and tolerance distribution in the assembly process. By using visual positioning system and adjusting the positioning method, it achieves accurate lens positioning with smaller camera hole aperture, thereby reducing the gap and lens black edge while still accommodating lens eccentricity.
3Manufacturing precision
If high precision requirements are imposed on the limiting groove and outer wall processing, then the lens positioning is accurate, but the processing and assembling difficulties increase
Solution Approach 1:
The patent replaces the mechanical limiting groove positioning system with a visual positioning system. This substitution allows for accurate positioning without requiring high-precision mechanical machining of limiting grooves, thereby reducing processing difficulty while maintaining positioning accuracy.
Data Source
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AI summary
This application discloses a front camera assembling method and assembling structure, and an electronic device. The assembling method includes: providing a middle frame; assembling the middle frame and a touchscreen into an integral structure; and moving a camera body by using a visual positioning system, to enable a lens to extend into a camera hole and to be disposed in a centering manner, and fastening the camera body in an accommodation groove. In the front camera assembling method provided in this application, after the lens and the camera hole are accurately positioned by using the visual positioning system, the camera body is fastened to the middle frame. In an entire assembling process, only tolerances of the lens, the camera hole, and the visual positioning system are to be considered, to achieve a minimum cumulative tolerance. An aperture of the camera hole may be designed to be small, to reduce an impact of a lens black edge on user's vision, and increase a screen-to-body ratio, and requirements for size precision and installation precision of parts are also relatively low, reducing overall difficulties in processing and assembling a front camera.