Gimbal Module Flexible Circuit Board S-Shape Design
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current camera modules with gimbals face challenges in achieving optimal image stabilization due to insufficient counteraction of twisting and pulling forces during movement, which affects the image quality.
Innovation Solution
The gimbal module incorporates a flexible circuit board arranged in an S-shape and a magnetic system with a magnet yoke to effectively counteract these forces, enhancing optical image stabilization by using a coil and magnetic member to drive the lens assembly and a metal spring sheet for elastic restoration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a traditional rigid circuit board is used in the gimbal module, then the structure is simple and easy to manufacture, but it cannot effectively counteract twisting and pulling forces during lens assembly movement, reducing image stabilization performance
Solution Approach 1:
The patent employs a flexible circuit board with an S-shaped configuration instead of a traditional rigid circuit board. This flexible structure can bend and deform to counteract the twisting and pulling forces generated during lens assembly movement, thereby maintaining reliable electrical connections while improving image stabilization performance.
2Measurement precision
If the lens assembly is driven to move for optical image stabilization, then image quality is improved, but twisting and pulling forces are generated that interfere with stabilization
Solution Approach 1:
The flexible circuit board's S-shaped design converts the harmful twisting and pulling forces generated during lens assembly movement into a beneficial counteracting force. As the lens assembly moves for optical image stabilization, the flexible circuit board deforms in response, generating restoring forces that help counterbalance the twisting and pulling forces, thereby improving overall stabilization performance.
3Object-affected harmful factors
If external magnetic fields are present in the environment, then the gimbal module may experience interference, but adding magnetic shielding increases device complexity
Solution Approach 1:
The magnet yoke in the driving system serves multiple functions: it guides and concentrates the magnetic field for driving the lens assembly, and simultaneously acts as a magnetic shield to block external magnetic fields from interfering with the gimbal module. This multi-functional design reduces device complexity while providing both driving and shielding capabilities.
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
This configuration improves image stabilization by effectively managing twisting and pulling forces, leading to enhanced optical image stabilization performance and reduced interference from external magnetic fields.
Implementation Method 1
a coil and magnetic member to drive the lens assembly
Implementation Method 2
a metal spring sheet for elastic restoration
Implementation Method 3
a magnetic system with a magnet yoke to effectively counteract these forces, enhancing optical image stabilization by using a coil and magnetic member to drive the lens assembly and a metal spring sheet for elastic restoration
Data Source
AI summary
A gimbal module includes a first carrier including a receiving chamber, a first bracket accommodated in the receiving chamber, a lens assembly fixed to the first bracket, and a flexible circuit board connected to the lens assembly. The flexible circuit board extends in an S-shape on a plane as viewed in a height direction of the gimbal module. An electronic device including the gimbal module is also disclosed.