Camera Module Reinforcing Structure for Compact Rigidity
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Solution Overview
Problem
The challenge of reducing the size of camera modules is hindered by the thickness of the housing and substrate surrounding the perimeter, which affects the rigidity and makes miniaturization difficult.
Innovation Solution
Incorporating a reinforcing structure integrally formed with the housing, connected to the driving assembly, which includes a first and second reinforcing member, each with an inverted U or spiral shape, to enhance rigidity without increasing the size of the housing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the housing perimeter is formed with predetermined thickness to provide rigidity, then the rigidity of the housing is improved, but the size of the camera module increases
Solution Approach 1:
The reinforcing structure is divided into multiple segments (first reinforcing member and second reinforcing member) that are selectively positioned at different locations within the housing. This segmentation allows rigidity to be enhanced only where needed rather than uniformly throughout the entire housing, thus reducing the overall size increase.
Solution Approach 2:
The reinforcing members are strategically placed at specific locations (sidewall and flange portion) where structural support is most needed. This local reinforcement approach provides the necessary rigidity while minimizing the addition of material and overall module size, as opposed to uniformly thickening the entire housing perimeter.
2Adaptability or versatility
If a substrate is disposed on the perimeter of the housing to transmit current, then the electrical connection function is improved, but the size of the camera module increases
Solution Approach 1:
The reinforcing structure is designed to serve dual functions: providing mechanical reinforcement to the housing and simultaneously serving as an electrical connection path for the driving coil. By merging these two functions into a single integrated structure, the need for a separate substrate is eliminated, thus reducing the camera module size while maintaining electrical connectivity.
Solution Approach 2:
The reinforcing members are designed with multi-functionality, acting both as structural support elements and as electrical conduits. This universal design allows the same component to fulfill multiple roles (mechanical reinforcement and electrical connection), thereby reducing the overall number of components and the size of the camera module.
3Volume of moving object
If the housing thickness is reduced to minimize size, then the size of the camera module is reduced, but the rigidity of the housing deteriorates
Solution Approach 1:
Instead of uniformly thickening the housing, the reinforcing structure is segmented into specific members positioned at critical locations. This allows the housing to maintain thin walls for compactness while adding localized reinforcement only where structural integrity is needed, thus preserving small size while improving rigidity.
Solution Approach 2:
The reinforcing members are configured in three-dimensional space with specific geometries (inverted U-shape, spiral shape) that provide structural strength without increasing the overall footprint or thickness of the housing. By utilizing spatial arrangement and geometric configuration rather than simply increasing thickness, rigidity is enhanced while maintaining compact dimensions.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The reinforcing structure improves the rigidity of the camera module, allowing for a compact design while maintaining functionality and enabling easy electrical connections to the driving coils and detection sensors.
Implementation Method 1
a driving assembly configured to move the lens module in a direction of an optical axis or a direction intersecting the optical axis; a driving coil disposed in the housing and electrically connected to the reinforcing structure
Data Source
AI summary
A camera module includes: a housing; a lens module disposed in the housing; a driving assembly configured to move the lens module in a direction of an optical axis or a direction intersecting the optical axis; and a reinforcing structure formed integrally with the housing, and electrically connected to the driving assembly.