Vehicle Camera Module Circuit Board Shield Can Fixation
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Solution Overview
Problem
Camera modules for vehicles face increased complexity and part count due to the use of screws to secure multiple circuit boards, leading to reduced usable space and increased assembly processes.
Innovation Solution
A camera module design that supports circuit boards within a housing using shield cans instead of screws, allowing for electrical connection and grounding without the need for screws, thereby reducing the number of parts and assembly processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If circuit boards are mutually coupled by screw-connection, then the circuit boards can be securely fixed inside the housing, but the number of parts is greatly increased and the number of assembly processes is greatly increased
Solution Approach 1:
The patent combines multiple functions into the housing structure itself. The housing not only provides enclosure but also incorporates positioning protrusions and recesses that directly support and fix the circuit boards. This eliminates the need for separate screw connections, reducing part count while maintaining secure fixation. The housing integrates the roles of both container and mounting structure.
Solution Approach 2:
The patent extracts the fixation function from separate screw components and relocates it directly into the housing structure. By embedding positioning features within the housing, the design removes unnecessary intermediate parts (screws) while preserving the essential function of securing circuit boards in place.
2Stability of the object's composition
If circuit boards are mutually coupled by screw-connection, then the circuit boards can be securely fixed, but the use area of circuit boards is reduced due to screw-connection
Solution Approach 1:
The housing integrates both enclosure and mounting functions, eliminating the need for separate screw holes on the circuit boards. The positioning protrusions on the housing engage with corresponding recesses on the circuit boards, providing secure fixation without requiring additional space for screw mounting areas, thus maximizing the usable circuit board area.
3Volume of stationary object
If multiple circuit boards are stacked in a mutually parallel manner inside the housing, then the camera module can be manufactured with a very small size, but the circuit boards require screw-connection to prevent movement
Solution Approach 1:
The housing serves as both the camera module enclosure and the mounting structure for multiple stacked circuit boards. Integrated positioning protrusions within the housing directly engage with circuit board recesses, eliminating the need for separate screw connections. This reduces part count and assembly complexity while maintaining the compact stacked configuration.
Solution Approach 2:
The fixation function is extracted from separate screw components and embedded directly into the housing structure. This allows multiple circuit boards to be securely held in their stacked positions without requiring additional fastening parts, simplifying the overall design while maintaining compact dimensions.
Data Source
AI summary
A camera module comprising: a housing; a lens assembly that is fixed to the housing and comprises at least one lens; a circuit board that is arranged inside the housing and comprises a first circuit board and a second circuit board, on which image sensors arranged to face the lens are mounted, respectively; and a first shield can arranged inside the housing so as to support edges of the first and second circuit boards.