Camera Module Shutter Rotation Guide
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Solution Overview
Problem
The existing camera module shutters suffer from structural damage due to repeated collisions with other objects during operation, caused by inaccurate control of the magnet's rotation, leading to accumulated stress and potential destruction.
Innovation Solution
A camera module with a shutter design featuring a cylindrical fixing pole with radially protruded lugs and a rotation guide unit on the magnet, which restricts excessive rotation and prevents collisions by allowing the lugs to hitch and limit additional rotation, thereby enhancing structural reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the magnet is rotated by simple repeated application and release of power to the electromagnet, then the shutter operation is simple and fast, but the rotation control becomes inaccurate causing collision with peripheral devices
Solution Approach 1:
The rotation guide unit is pre-formed on the magnet with lugs that protrude radially. These lugs engage with the fixing pole before rotation occurs, establishing predetermined rotation limits in advance. This preliminary structural arrangement ensures that when power is applied to rotate the magnet, the rotation is automatically constrained within safe boundaries, preventing collision while maintaining fast operation.
2Ease of operation
If the magnet rotates without rotation restriction, then the shutter operation is smooth and unrestricted, but collision occurs with peripheral devices causing structural damage
Solution Approach 1:
The rotation guide unit acts as an intermediary element between the magnet and the fixing pole. The lugs on the magnet engage with the fixing pole through this intermediate structure, which mediates the rotation process by providing guided movement paths. This intermediary structure ensures smooth rotation while simultaneously preventing excessive rotation that would cause collision, thus protecting structural integrity.
3Device complexity
If repeated collision occurs during shutter operation, then the simple power application method remains effective, but structural stress accumulates causing destruction
Solution Approach 1:
The rotation guide unit with radially protruded lugs is pre-formed on the magnet to establish predetermined rotation limits before any operation occurs. This preliminary structural arrangement prevents collision with peripheral devices during each shutter operation, thereby preventing accumulation of structural stress that would lead to destruction, while maintaining the simplicity of the power application control method.
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 improved shutter configuration effectively prevents collisions and structural damage, enhancing the reliability and longevity of the camera module by controlling the magnet's rotation and reducing stress accumulation.
Implementation Method 1
a pair of electromagnets mounted about the magnet to rotate the magnet in response to changes in magnetic polarity
Data Source
AI summary
The present invention relates to a camera module including: a shutter including a blocking unit for blocking progress of light, a fixing unit for preventing arbitrary motion of the blocking unit, and a magnet for rotating the blocking unit; a pair of electromagnets mounted about the magnet to rotate the magnet in response to changes in magnetic polarity; and a cylindrical fixing pole for providing an axis for rotating the magnet, wherein the magnet comprises a hole, the hole for inserting the fixing pole being formed through a portion adjacent to a center of the magnet.