Camera Module Spacer Structure for Board Parallelism Control
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Solution Overview
Problem
In camera modules, such as on-vehicle cameras and cellular phones, maintaining the degree of parallelism between boards is challenging due to space constraints and accumulated tolerances from spacer components, leading to potential damage and difficulty in handling and designing.
Innovation Solution
A camera module design featuring a spacer component with a component body made of insulating material, including multiple reference surfaces and accommodation portions, which facilitates snap-fit connections and misalignment control, ensuring precise alignment and reduced component count for improved parallelism and handling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If multiple block-shaped spacer components are arranged away from B-to-B connectors to secure flatness, then the degree of parallelism is improved, but the number of components increases and space constraints are violated
Solution Approach 1:
The patent merges multiple separate spacer components into a single integrated spacer component that includes both the first spacer (contacting first board) and second spacer (contacting second board) as unified structures. This consolidation maintains the parallelism function while reducing component count and simplifying assembly, directly resolving the contradiction between manufacturing precision and device complexity
2Manufacturing precision
If multiple spacer components are used to maintain board distance, then the degree of parallelism is improved, but accumulated tolerances increase and assembly variations occur
Solution Approach 1:
By integrating multiple spacer functions into a single spacer component with unified structure and material properties, the patent eliminates the accumulation of tolerances that occurs when multiple separate spacers are assembled. The single-component design ensures consistent dimensional control and reduces assembly variations, thereby improving reliability while maintaining manufacturing precision
3Reliability
If a sufficient clearance between boards is maintained to avoid short circuit, then electrical reliability is improved, but the difficulty in performing designing and handling increases
Solution Approach 1:
The patent introduces a single integrated spacer component as an intermediary element between the first and second boards. This mediator maintains the necessary electrical clearance while providing a unified structure that is easier to handle and assemble compared to multiple separate components, thus improving ease of operation without sacrificing electrical reliability
Data Source
AI summary
A camera module according to an embodiment of the present technology includes a first component-mounting board, a second component-mounting board, and a spacer component. The first component-mounting board includes an imaging device. The second component-mounting board is electrically connected to the first component-mounting board. The spacer component is arranged between the first component-mounting board and the second component-mounting board. The spacer component includes a component body that is made of a first insulating material. The component body including a first primary-surface portion that includes a plurality of first reference surfaces including at least three first reference surfaces, a second primary-surface portion that includes a plurality of second reference surfaces including at least three second reference surfaces, and a component accommodation portion with or without a bottom, the first primary-surface portion being brought into contact with the first component-mounting board, the second primary-surface portion being brought into contact with the second component-mounting board, the component accommodation portion being provided to at least one of the first primary-surface portion or the second primary-surface portion.