Vehicle Camera Module Hook Coupling for Stable Stacked Substrates
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Solution Overview
Problem
Existing camera modules with stacked substrates face issues of reduced component mounting space, increased manufacturing time, and substrate warping due to screw coupling and torque application.
Innovation Solution
A camera module design featuring a hook coupling structure with a support member that includes a fence portion and hook portions to secure substrates, minimizing the need for screws and simplifying the assembly process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If screw coupling is used to fix substrates, then substrate stability is improved, but component mounting space is reduced and manufacturing time is increased
Solution Approach 1:
The support member is divided into distinct functional portions: a fence portion that provides structural support and spacing, and hook portions that provide coupling functionality. This segmentation allows each portion to perform its specific function efficiently without interfering with component mounting areas on the substrates.
Solution Approach 2:
The support member acts as an intermediary component between the first and second substrates. Instead of directly coupling substrates with screws (which would occupy mounting space), the support member mediates the connection through its hook portions that engage with coupling holes in the substrates, thereby preserving substrate mounting areas.
2Stability of the object's composition
If screw coupling is used to fix substrates, then substrate stability is improved, but manufacturing process time is increased
Solution Approach 1:
The hook portions are pre-formed as integral parts of the support member structure. During assembly, the hook portions are simply inserted into the coupling holes and engaged, eliminating the need for separate screw tightening operations. This preliminary formation of coupling structures significantly reduces manufacturing process time while maintaining substrate stability.
3Strength
If excessive torque is applied during screw tightening, then substrate connection strength is improved, but substrate warping occurs
Solution Approach 1:
The invention replaces the screw tightening mechanism (which requires torque application and risks warping) with a hook engagement mechanism. The hook portions engage with coupling holes through a simple insertion and engagement motion, providing sufficient connection strength without applying excessive localized torque that would cause substrate warping.
Data Source
AI summary
A camera module comprises: a lens barrel disposed in a front body and comprising a lens; a first substrate disposed under the body; a support member partially disposed on an undersurface of the first substrate; and a second substrate disposed under the first substrate and coupled to the support member, wherein the support member comprises: a fence portion disposed between the first substrate and the second substrate; and a hook portion which comprises a region extending from the fence portion and having a coupling hole into which a partial side surface of the second substrate is inserted, and an extended portion inclined at a predetermined angle with respect to the region having the coupling hole formed therethrough.