Tortuous Flexible Circuit Board for Camera Module Holder Movement
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The flexible printed circuit board in existing camera modules can hinder the movement of the camera module's holder, restricting the module's ability to tilt and stabilize images effectively.
Innovation Solution
The camera module design incorporates a flexible printed circuit board with a connection portion connected to the holder, an attachment portion attached to the frame, and a tortuous portion between the two, allowing for deformation and preventing hindrance to the holder's movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the flexible printed circuit board is attached to the holder and frame with a straight configuration, then the electrical connection is simple and reliable, but the holder's movement is hindered and restricted
Solution Approach 1:
The flexible printed circuit board is designed with a tortuous (twisted) configuration instead of a straight rigid structure, allowing it to dynamically adapt its shape as the holder moves between tilted and horizontal positions. This dynamic flexibility enables the FPC to accommodate the full range of motion without hindering the holder's movement while maintaining electrical connection.
Solution Approach 2:
The flexible printed circuit board utilizes its inherent flexibility and thin-film structure to accommodate the holder's movement. The tortuous configuration allows the thin FPC to bend and deform smoothly during tilting operations, preventing interference with the holder's motion while preserving electrical connectivity throughout the movement range.
2Reliability
If the flexible printed circuit board is made longer to reach from holder to frame, then the electrical connection coverage is improved, but the FPC hinders the holder's movement more
Solution Approach 1:
The flexible printed circuit board employs a tortuous configuration that allows it to dynamically change its effective length and shape as the holder moves. This dynamic adaptation ensures that the FPC maintains adequate electrical connection coverage while minimizing its interference with the holder's movement through controlled deformation.
Solution Approach 2:
The flexible printed circuit board transitions from a straight one-dimensional configuration to a tortuous multi-dimensional structure. This dimensional change allows the FPC to route its path around the holder's movement trajectory, maintaining electrical connection coverage while avoiding direct interference with the holder's tilting motion in three-dimensional space.
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 design enables smooth movement of the camera module's holder without interference from the flexible printed circuit board, enhancing the module's ability to perform focusing and optical image stabilization.
Implementation Method 1
a flexible printed circuit board provided with a connection portion connected to the holder, an attachment portion attached to the frame, and a tortuous portion being tortuous between the connection portion and the attachment portion
Data Source
AI summary
A camera module includes: a lens; a holder holding the lens; a frame surrounding the holder; a driving mechanism configured to move the holder with respect to the frame; and a flexible printed circuit board provided with a connection portion connected to the holder, an attachment portion attached to the frame, and a tortuous portion being tortuous between the connection portion and the attachment portion.