Folded Circuit Board Layout for Low-Power Image Stabilization
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Solution Overview
Problem
Conventional folded circuit board structures for camera image stabilization devices face challenges in connecting external terminals for imaging signals due to high resistance in flexible printed circuits, which can hinder operation and increase power consumption.
Innovation Solution
A circuit board design featuring a first and second wiring board connected to a third wiring board with a connector and an external terminal connector, allowing for efficient signal transmission while reducing contact with a fixed body, and a swing mechanism that corrects image blur by swinging the movable body on multiple axes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a flexible printed circuit is used to connect the imaging element to external terminals, then the circuit board can accommodate movement of the imaging element, but the high resistance of the flexible printed circuit hinders operation and increases power consumption
Solution Approach 1:
The circuit board is divided into a movable carrier plate and a fixed carrier plate that can swing relative to each other about multiple axes. This segmentation allows the movable imaging element to move while maintaining low-resistance electrical connections through the fixed carrier plate's external terminals, resolving the contradiction between movement accommodation and power consumption.
2Ease of operation
If external terminals are connected to each of the pair of carrier plates in a conventional folded circuit board structure, then signal extraction is enabled, but the structure complexity and connection difficulty increase
Solution Approach 1:
The fixed carrier plate integrates multiple external terminals on a single structure, eliminating the need for separate connections to multiple carrier plates. This merging simplifies the connection structure while maintaining full signal extraction capability, resolving the contradiction between ease of operation and device complexity.
Data Source
AI summary
A circuit board includes a first wiring board, a second wiring board connected to the first wiring board, a third wiring board connected to the first wiring board, a connector, and an external terminal connector. A different-direction reference portion of the third wiring board extends in a direction different from an extending direction of a reference portion of the second wiring board between a first end of the third wiring board and a second end of the third wiring board. The connector electrically connects any portion between the reference portion and the second end of the second wiring board and any portion between the different-direction reference portion and the second end of the third wiring board.