Camera Shutter Slide Mechanism for Wide-Angle Cameras
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Solution Overview
Problem
Existing electronic apparatuses with wide-angle cameras face challenges in accommodating a shutter mechanism that requires a large sliding distance within a limited width, leading to design integrity issues and user discomfort.
Innovation Solution
A slide mechanism utilizing a movable magnet and a fixed magnet with specific pole configurations to achieve a larger sliding amount while minimizing the overall mechanism width, employing a movable magnet with half the width of the fixed magnet and alternating pole arrangements to stabilize and guide the slider.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If the shutter mechanism is designed to accommodate a large sliding distance for wide-angle cameras, then the viewing angle coverage is improved, but the width of the entire mechanism increases
Solution Approach 1:
The fixed magnet employs an asymmetric pole configuration where the two central poles have a greater width in the moving direction than the two outer poles. This asymmetric design allows the magnetic interaction area to be concentrated in the central region, enabling the movable magnet to achieve a larger sliding distance while the overall mechanism width remains compact, as the magnetic force distribution is optimized rather than uniformly distributed
Solution Approach 2:
The invention transitions from a symmetric two-pole magnet configuration to a four-pole alternating configuration (N-S-N-S arrangement). This dimensional change in pole arrangement creates multiple magnetic interaction zones along the moving direction, allowing the movable magnet to traverse a longer distance by sequentially interacting with different pole pairs, thereby increasing sliding distance without proportionally increasing mechanism width
2Length of stationary object
If the movable magnet width is reduced to half of the fixed magnet width, then the mechanism width is minimized, but the magnetic attraction stability may be compromised
Solution Approach 1:
The alternating four-pole configuration acts as an intermediary structure that distributes magnetic interaction across multiple zones. Even though the movable magnet is narrow (half the width of the fixed magnet), it can sequentially engage with different pole pairs (first with one central pole, then with the other) during its sliding motion. This multi-zone magnetic interaction mediates between the reduced magnet width and the required attraction stability, maintaining stable operation throughout the sliding range
Solution Approach 2:
The fixed magnet's central poles are designed with greater width than the outer poles, creating localized regions of enhanced magnetic interaction. When the narrow movable magnet slides over these widened central poles, it experiences stronger and more stable magnetic attraction in the critical interaction zones. This local quality enhancement ensures stable magnetic engagement despite the overall reduced width of the movable magnet
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 solution allows for a larger sliding distance while maintaining a compact mechanism, providing a stable and intuitive operation with a moderate clicking sensation, enhancing user experience and design aesthetics.
Implementation Method 1
a movable magnet at the slider; and a fixed magnet at the chassis, the fixed magnet having four poles of N poles and S poles in total alternately disposed in a moving direction of the slider on a face opposing the movable magnet, the movable magnet having one first magnetic pole and one second magnetic pole disposed in the moving direction on a face opposing the fixed magnet, the first magnetic pole and the second magnetic pole being disposed in order so as to attract to the fixed magnet
Data Source
AI summary
An electronic apparatus includes: a slider that is movable between a first position and a second position; a shield cover on the slider, the shield cover being located to cover the front of the camera when the slider is in the first position and located to be away from the front of the camera when the slider is in the second position; a movable magnet at the slider; and a fixed magnet at the chassis. The fixed magnet has four poles of magnets. The fixed magnet is configured so that the width of the magnets at both ends is narrower than the width of the center magnets, and the center magnets have the same width and are wider than the width of the magnets at both ends. The width of the movable magnet is equal to or less than half of the width of the fixed magnet.