Multi-DOF Circuit Board Anti-Shaking Actuator Design
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Solution Overview
Problem
Existing anti-shaking devices for mobile cameras require complex assembly and high production costs due to the need for folding flexible structures in circuit boards, which complicates the production process and reduces efficiency.
Innovation Solution
A Multi-Degree-of-Freedom (Multi-DOF) circuit board with a conductive and flexible unit featuring a flat board design, where flexible connectors are integrated within a hollow portion, allowing for multi-axis flexibility without the need for folding, connected through linkage arms and bending portions, and an anti-shaking miniature actuator with a spring system and coil group for vibration compensation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a flexible structure is used to connect the image sensor to external components, then multi-axis flexibility and anti-shaking effect are achieved, but the structure becomes complex and requires folding which complicates assembly and production
Solution Approach 1:
The flexible connector is divided into multiple linkage arms (first linkage arm, second linkage arm, third linkage arm) connected through bending portions. Each linkage arm segment contributes to the overall flexibility while maintaining a manageable structure that does not require folding, thus achieving multi-axis movement capability without excessive complexity.
Solution Approach 2:
The flexible connector utilizes three-dimensional spatial arrangement with linkage arms extending in different directions and bending portions at specific angles. This 3D configuration enables multi-axis flexibility by distributing movement across multiple dimensions rather than requiring planar folding, thereby reducing structural complexity while maintaining adaptability.
2Adaptability or versatility
If a flexible structure is used to connect the image sensor to external components, then multi-axis flexibility is achieved, but production cost increases and production efficiency decreases
Solution Approach 1:
By segmenting the flexible connector into standardized linkage arms and bending portions, the structure becomes modular and easier to manufacture. Each segment can be produced independently and assembled through simple connection processes, improving production efficiency while maintaining the multi-axis flexibility required for anti-shaking functionality.
Solution Approach 2:
The design allows for adjustment of geometric parameters such as the angles of bending portions and the dimensions of linkage arms. This parameter-based design enables flexible customization without requiring complex folding mechanisms, thereby reducing production costs and improving manufacturing efficiency while preserving adaptability.
3Adaptability or versatility
If a flexible structure is used to connect the image sensor to external components, then multi-axis flexibility is achieved, but assembly process becomes complicated
Solution Approach 1:
The flexible connector is segmented into distinct linkage arms and bending portions that can be assembled in a straightforward sequence. Each segment has defined connection points that simplify the assembly process, eliminating the need for complex folding operations and making the assembly process more straightforward while maintaining multi-axis flexibility.
Solution Approach 2:
Instead of starting with a flat structure that needs to be folded into a complex configuration, the invention inverts the approach by using an extended three-dimensional linkage structure that naturally achieves the required flexibility without folding. This inverted design approach simplifies the assembly process by eliminating the folding step entirely.
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 simplifies the structure, reduces production costs, enhances drop resistance, and achieves a reliable multi-axis anti-shaking effect without the need for folding, improving image and video quality by effectively compensating for vibrations.
Implementation Method 1
coil group disposed outside of the lens holder corresponding to the magnet group
Implementation Method 2
spring system, a lens, a lens holder, an image sensor, and a coil group
Data Source
AI summary
A circuit board having multiple degrees of freedom, comprises a flat board and a conductive and flexible unit disposed on the flat board. The conductive and flexible unit comprises: an inner support plate, an outer support plate, and at least one flexible connector; a hollow portion is provided on the outer support plate; the inner support plate and the flexible connector are disposed in the hollow portion; the inner and the outer support plates are connected by the flexible connector; the flexible connector comprises an outer connecting portion, an inner connecting portion corresponding to the outer connecting portion, and an extension located between the outer connecting portion and the inner connecting portion. The circuit board has a simple and compact structure; the production efficiency is high; costs are low; a multi-axis flexible anti-shaking effect can be achieved without folding a flexible structure; the resilience performance is good.