Optical Member Driving Module Base with Segmented Metal Frames
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In thinner electronic devices, the reduced length of suspension wires leads to increased tension, making it difficult to achieve effective image stabilization due to manufacturing constraints that limit the reduction of suspension wire diameter.
Innovation Solution
An optical member driving module with a moving mechanism, a base, and an electromagnetic driving mechanism, where the suspension wire extends through an opening in the base, allowing for longer wire lengths and appropriate tension, and includes features like insulation layers, metal frames, and blocking members to reduce thickness and enhance mechanical strength.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the electronic device thickness is reduced, then the device becomes thinner and more compact, but the suspension wire length is reduced leading to increased tension and ineffective image stabilization
Solution Approach 1:
The base is divided into multiple metal frames (first metal frame, second metal frame, third metal frame, fourth metal frame) that are separated from each other by insulation layers. This segmentation allows the suspension wire to extend through openings in multiple frames, effectively increasing the wire length and reducing tension while maintaining a compact overall structure.
Solution Approach 2:
The suspension wire extends not only in the vertical direction but also horizontally through openings in multiple metal frames arranged in sequence. This multi-dimensional arrangement increases the effective wire length without proportionally increasing the device thickness, thereby reducing wire tension while maintaining compact form factor.
2Volume of moving object
If the suspension wire diameter is reduced to maintain thin device profile, then the device remains thin, but manufacturing constraints prevent further diameter reduction and tension control becomes difficult
Solution Approach 1:
By segmenting the base into multiple metal frames with openings, the suspension wire can pass through each frame sequentially. This allows the use of a wire with manageable diameter and length in each segment, making manufacturing easier while achieving the required overall wire length for proper tension control in thin devices.
Solution Approach 2:
The invention changes the structural parameters of the base from a solid structure to a segmented structure with multiple openings. This allows optimization of the suspension wire parameters (diameter, length, tension) independently from the overall device thickness, making both manufacturing and performance control easier.
3Reliability
If multiple metal frames are used to increase suspension wire length, then the wire tension is reduced for better image stabilization, but the device complexity increases
Solution Approach 1:
Multiple metal frames are merged into a single base structure with integrated openings and insulation layers. The suspension wire passes through all frames in sequence, effectively combining multiple structural elements into one unified base that provides both increased wire length and structural support, reducing overall device complexity.
Solution Approach 2:
The segmented metal frame structure serves multiple functions: it provides structural support for the optical components, creates openings for suspension wire passage to increase wire length, and maintains mechanical strength while enabling image stabilization. This multi-functionality reduces the need for separate components, simplifying the overall device.
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 enables effective image stabilization and focus adjustment while maintaining miniaturization of electronic devices by allowing longer suspension wire lengths and reducing the overall thickness of the optical member driving module.
Implementation Method 1
an electromagnetic driving mechanism for driving the moving mechanism to move relative to the base
Data Source
AI summary
An optical member driving module is provided, including a moving mechanism, a base, a suspension wire, and an electromagnetic driving mechanism for driving the moving mechanism to move relative to the base. The moving mechanism includes an optical member holder, and the base has a first surface, a second surface, and an opening. The second surface faces the optical member holder and is opposite to the first surface. The opening extends from the first surface to the second surface. The suspension wire extends through the opening, and the opposite ends of the suspension wire are respectively affixed to the first surface and the moving mechanism.