Imaging Lens Module Coil Pair Winding for Faster Assembly
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Solution Overview
Problem
The manufacturing efficiency of imaging lens driving modules in portable electronic devices needs to be improved to meet the increasing quality requirements.
Innovation Solution
An imaging lens driving module with a coil pair comprising a bottom layer coil and a top layer coil wound around the bottom layer coil, magnets, and elastic elements, where the coils are wound in the same direction and connected to the elastic elements to facilitate movement along the optical axis, reducing manufacturing time and enhancing design flexibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional separate winding of coils is used, then manufacturing flexibility is maintained, but manufacturing cycle time increases and productivity decreases
Solution Approach 1:
The patent combines two separate coil winding operations into a single simultaneous winding process. The coil pair is wound around the same assembling structure at the same time, integrating what were previously sequential steps into one concurrent operation, thereby reducing manufacturing cycle time while maintaining product quality
2Reliability
If multiple wire terminals are used for coil connections, then electrical connection reliability is improved, but device complexity and manufacturing difficulty increase
Solution Approach 1:
The patent extracts and eliminates redundant wire terminals from the design. By using only two wire terminals for the entire coil pair instead of four separate terminals, the invention reduces connection points while maintaining electrical reliability through the shared winding structure that ensures consistent electrical contact
3Manufacturing precision
If coils are wound in different directions, then design flexibility is maintained, but manufacturing precision and consistency deteriorate
Solution Approach 1:
The patent applies homogeneity by requiring both coils in the pair to be wound in the same direction around the assembling structure. This uniform approach ensures consistent manufacturing precision and reliable magnetic field generation, while the overall system design maintains adaptability through the modular coil pair structure that can be oriented as needed
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 reduces manufacturing cycle time and improves yield rates by simplifying the coiling process and ensuring precise electrical connections, while maintaining compact size and high imaging quality.
Implementation Method 1
The driving mechanism is configured to drive the carrier element to move along a direction parallel to the optical axis, and includes at least one coil pair, at least two magnets
Implementation Method 2
The elastic element is coupled with the carrier element
Data Source
AI summary
An imaging lens driving module includes an imaging lens set, a carrier element and a driving mechanism. The imaging lens set has an optical axis. The carrier element is configured to dispose the imaging lens set, and includes an assembling structure. The assembling structure is disposed on an outer surface of the carrier element, and extends along a direction away from the optical axis. The driving mechanism is configured to drive the carrier element to move, and includes at least one coil pair and at least two magnets. The coil pair is disposed on the assembling structure, and includes a bottom layer coil and a top layer coil. The bottom layer coil is wound around and directly contacted with the assembling structure. The top layer coil is stacked on and wound around the bottom layer coil. The magnets correspond to the coil pair, respectively.