Circlip-Fixed Camera Module Structure for Vibration-Resistant Lens Mounting
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Solution Overview
Problem
Existing camera fixation methods in automotive systems, such as screw and glue connections, are prone to loosening, shaking, and falling off, complicating assembly and increasing costs.
Innovation Solution
A camera module structure utilizing a circlip with clamping parts, boss structures, and guide ribs for secure fixation, ensuring positional accuracy and ease of assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If screw connection is used to fix the camera, then the camera can be securely fixed, but the assembly becomes complicated and the cost increases
Solution Approach 1:
The fixation mechanism is segmented into a snap-fit component for quick attachment and a screw component for secure locking. This segmentation allows the assembly to benefit from both the simplicity of snap-fit and the reliability of screw connection, resolving the contradiction between fixation reliability and assembly complexity.
Solution Approach 2:
The snap-fit structure performs preliminary positioning and temporary fixation before the screw connection is fully tightened. This preliminary action simplifies the assembly process by providing immediate stabilization, while the subsequent screw tightening ensures long-term reliability.
2Device complexity
If glue connection is used to fix the camera, then the assembly is simplified, but the fixation may loosen or fail over time
Solution Approach 1:
The fixation system is divided into two functional parts: the snap-fit provides initial mechanical support and positioning (simplifying assembly), while the screw connection provides progressive tightening and long-term security (ensuring reliability). This segmentation eliminates the weaknesses of using glue alone.
Solution Approach 2:
The invention merges the advantages of snap-fit connection (simple assembly) and screw connection (high reliability) into a single integrated fixation mechanism. The snap-fit and screw work together synergistically, with the snap-fit providing initial stability and the screw ensuring permanent securement.
3Ease of manufacture
If traditional fixation methods are used, then the camera can be installed, but loosening, shaking, and falling off may occur with increased use time
Solution Approach 1:
The snap-fit structure performs preliminary fixation that stabilizes the camera immediately upon installation, preventing initial loosening and shaking. This preliminary mechanical support protects the camera during the critical early period of use, extending service life while maintaining ease of installation.
Solution Approach 2:
The fixation mechanism transitions from a static snap-fit connection to a dynamic tightening process with the screw. The screw allows for progressive adjustment and tightening over time, adapting to any settling or thermal expansion, thereby maintaining secure fixation throughout the service life.
Data Source
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AI summary
A camera module structure, comprising: an upper housing (1) and a lens (2). The upper housing (1) comprises an accommodating part (11); the lens (2) is mounted in the accommodating part (11). The structure further comprises a circlip (3). The circlip (3) comprises a press part (31) and a clamp part (32). A guide groove (12) is provided on the upper housing (1). A clamp groove (21) is provided on the external peripheral wall of the lens (2). The clamp part (32) is engaged in the clamp groove (21) of the lens (2) along the guide groove (12). The camera module structure is convenient to assemble, and compared with screw connection, adhesive connection and other modes, problems such as vibration, falling-off and fracture would not happen, the imaging quality is good, and the service life is long.