Camera Actuator Coil Board Integration to Cut Pins
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Solution Overview
Problem
Existing camera module designs require a separate driving chip independent of the motor, necessitating multiple pins to connect, which complicates manufacturing and increases the number of terminals, hindering the improvement of image quality and focusing/anti-shaking functions.
Innovation Solution
An actuator with a stator magnet, a mover assembly including a coil circuit board with a conductive coil, and a driving chip integrated on the coil circuit board, eliminating the need for additional pins by connecting the driving chip directly to the coil circuit board and external power supply, allowing for power supply and signal transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a separate driving chip independent of the motor is configured and connected to the pin that leads out of the coil in the motor, then the focusing and anti-shaking functions can be achieved, but the manufacturing process is hindered due to increased complexity and number of terminals
Solution Approach 1:
The patent combines the driving chip and the motor into an integrated motor module. The driving chip is positioned within the motor structure and directly connected to the coil, eliminating the need for separate external connections. This integration maintains the focusing and anti-shaking functions while significantly simplifying the manufacturing process by reducing the number of separate components and connection points.
2Reliability
If a separate driving chip independent of the motor is configured and connected to the pin that leads out of the coil in the motor, then the focusing and anti-shaking functions can be achieved, but the number of pins and terminals increases
Solution Approach 1:
The driving chip is integrated within the motor assembly, sharing the same structural space and connection points. This merging eliminates redundant pins and terminals that would be required if the driving chip were completely separate, thereby reducing device complexity while maintaining full functionality for both focusing and anti-shaking operations.
Solution Approach 2:
The integrated motor module serves multiple functions: it acts as both the motor for lens actuation and as the mounting structure for the driving chip. This multi-functionality allows the same physical components to serve dual purposes, reducing the overall number of pins and terminals needed in the system.
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 simplifies the manufacturing process, reduces the number of pins and terminals, and enhances the focusing and anti-shaking functions by enabling efficient power supply to the conductive coil, thereby improving image quality and stability.
Implementation Method 1
the first electrically conductive coil, when energized, interacts with the stator magnet to drive the mover assembly and the stator magnet to move relative to each other
Data Source
AI summary
An actuator includes a seat body a stator magnet, a mover assembly and a driving chip. The stator magnet is in the seat body and is connected to the seat body; the mover assembly includes a coil circuit board, the coil circuit board includes a first electrically conductive coil, and the first electrically conductive coil, when energized, interacts with the stator magnet to drive the mover assembly and the stator magnet to move relative to each other; and the driving chip is located on the coil circuit board and is connected to the first electrically conductive coil, and is used for connecting to an external power supply circuit to supply power to the first electrically conductive coil.