Front Camera Lens Bracket Alignment for Precise Screen Assembly
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Solution Overview
Problem
Existing electronic devices with front-facing cameras suffer from assembly precision issues due to size errors in the camera assembly structure, affecting the overall yield of the device.
Innovation Solution
The electronic device incorporates a limiting bracket that is sleeved on the lens and cooperates with a housing limiting groove to precisely align the lens with a silkscreen ring on the screen, using hard and soft material adjustment members to eliminate assembly gaps and enhance positioning precision.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the camera module is mounted directly in the housing without a limiting bracket, then the assembly structure is simpler, but the positioning precision of the lens is insufficient due to size errors and assembly gaps
Solution Approach 1:
A limiting bracket is introduced as an intermediary component between the housing and the camera module. The limiting bracket includes a limiting hole that fits the lens and an outer peripheral shape that cooperates with a limiting groove in the housing, thereby mediating the positioning relationship and reducing positioning eccentricity dimension chain errors.
Solution Approach 2:
The camera assembly is segmented into separate components: the housing with limiting groove, the limiting bracket with limiting hole, and the camera module. This segmentation allows each component to be manufactured and assembled separately, improving overall positioning precision while maintaining manageable complexity.
2Strength
If hard material is used for the limiting bracket body, then the structural strength is sufficient, but assembly gaps cannot be eliminated
Solution Approach 1:
The limiting bracket is constructed using composite materials: a hard limiting bracket body for structural strength and positioning, combined with soft limiting adjustment members (such as rubber or elastic materials) that can deform to eliminate assembly gaps between the limiting hole and the lens, and between the limiting groove and the limiting bracket.
Solution Approach 2:
The soft limiting adjustment members change their physical parameters (shape, volume) through deformation to adapt to size variations and eliminate assembly gaps, while the hard limiting bracket body maintains its dimensional stability and strength.
3Manufacturing precision
If the limiting adjustment members are disposed on the entire inner and outer peripheral sidewalls, then the positioning precision is maximized, but the material cost and manufacturing complexity increase
Solution Approach 1:
Instead of uniformly distributing limiting adjustment members on the entire peripheral sidewalls, the invention applies them locally at specific positions where positioning is most critical. This localized approach maintains sufficient positioning precision while reducing material consumption and manufacturing complexity.
Data Source
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AI summary
This application discloses an electronic device and a manufacturing method for an electronic device. The electronic device includes a housing, a camera module, a limiting bracket, and a screen. One side of the housing is provided with a limiting groove, the camera module is mounted in the housing, and the camera module includes a lens. The limiting bracket is sleeved on the lens, and the limiting bracket is disposed in the limiting groove, to limit the lens through cooperative limiting of the limiting bracket and the limiting groove. The screen is disposed on a side that is of the housing and on which the camera module is disposed, and a silkscreen ring is provided on the screen, where a location of the silkscreen ring is disposed corresponding to a location of the lens. In this application, the limiting bracket is disposed, and the lens is limited through cooperative limiting of the limiting bracket and the limiting groove of the housing, so that a positioning eccentricity dimension chain of the lens is reduced, thereby increasing assembly precision and a yield of the entire electronic device.