Multi-Substrate Camera Module Hook Structure for Stable Fixation
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Solution Overview
Problem
The existing camera module designs with multiple substrate stacks face issues of reduced component mounting space, increased manufacturing time due to screw fastening, and potential substrate bending or shaking, especially in vehicle camera applications.
Innovation Solution
A camera module design featuring a hook fastening structure with support members that include inclined surfaces and grooves to securely space substrates along the optical axis, eliminating the need for screws and thereby minimizing space usage and process time while preventing substrate bending.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If screws are used to fix substrates, then substrates can be securely fixed, but component mounting space is reduced and manufacturing time increases
Solution Approach 1:
The invention extracts the fastening function from traditional screw-based fixation and relocates it to extension parts that protrude from sidewalls. These extension parts engage with grooves on substrate side surfaces, providing secure fixation without requiring screw holes that would reduce component mounting space.
Solution Approach 2:
The extension parts act as intermediary elements between the support member and substrates. Instead of directly screwing into substrates, the extension parts protrude from sidewalls and couple with grooves on substrate side surfaces, providing a mediator that achieves secure fixation while preserving substrate surface area for component mounting.
2Reliability
If screws are used to fix substrates, then substrates can be securely fixed, but manufacturing process time increases
Solution Approach 1:
The support member is segmented into sidewalls and extension parts, where extension parts protrude from sidewalls to provide fastening functionality. This segmentation allows the fastening feature to be integrated into the support member structure itself, eliminating the need for separate screw fastening operations and reducing manufacturing process time.
Solution Approach 2:
The extension parts provide self-service fastening by protruding from sidewalls and automatically coupling with grooves on substrate side surfaces during assembly. This self-service mechanism eliminates the need for manual screw fastening operations, significantly reducing manufacturing process time while maintaining reliable substrate fixation.
3Reliability
If excessive torque is applied during screw fastening, then substrates can be securely fixed, but substrate bending occurs
Solution Approach 1:
The invention extracts the fastening function from torque-dependent screw fastening and relocates it to extension parts that couple with grooves on substrate side surfaces. This extraction eliminates the need for excessive torque application, preventing substrate bending while maintaining secure fixation through the extension-groove coupling mechanism.
Solution Approach 2:
The extension parts serve as intermediary elements that distribute fastening forces along the substrate side surfaces through groove coupling. This intermediary mechanism avoids concentrated torque loads that cause substrate bending, providing secure fixation while preserving substrate structural integrity.
Data Source
AI summary
A camera module according to an embodiment of the present invention comprises: a first body on which a lens is disposed; a second body coupled to the first body; a plurality of substrates disposed between the first body and the second body; and a support member for fixing the plurality of substrates so that the substrates are spaced apart in the optical axis direction, wherein the support member includes sidewalls disposed between different substrates and extension parts extending from the sidewalls.