Imaging Lens Module Coil Pair Layout for Faster Assembly
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Solution Overview
Problem
The manufacturing efficiency of imaging lens driving modules in portable electronic devices is hindered by complex coil pair configurations, leading to increased cycle times and assembly challenges.
Innovation Solution
The imaging lens driving module features a coil pair configuration with a bottom and top layer coil wound around an assembling structure, where the top layer coil overlaps the bottom layer coil parallel to the optical axis, and magnets interact with the coil pair to drive the carrier element, simplifying the manufacturing process and reducing cycle time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a complex coil pair configuration is used in the imaging lens driving module, then the driving mechanism can achieve precise control, but the manufacturing process becomes more complicated and assembly time increases
Solution Approach 1:
The patent merges the bottom layer coil and top layer coil into a single integrated coil pair structure that is wound around the assembling structure together. This combining approach maintains the precise control function while simplifying the manufacturing process by reducing the number of separate components and assembly steps required.
Solution Approach 2:
The coil pair configuration is designed to serve multiple functions: it provides precise electromagnetic driving control while also being integrated with the assembling structure to reduce manufacturing complexity. The same coil pair structure achieves both control precision and manufacturing simplicity through its dual functionality.
2Ease of manufacture
If multiple separate coils are used in the driving mechanism, then the electrical connections can be established independently, but the assembly time and manufacturing cycle time increase
Solution Approach 1:
The patent combines the winding process of the bottom layer coil and top layer coil into a single simultaneous operation around the assembling structure. This merging of the winding process allows electrical connections to be established independently while significantly reducing assembly time and improving manufacturing productivity.
3Force
If the top layer coil is positioned closer to the assembling structure, then the electromagnetic interaction is stronger, but the manufacturing alignment precision becomes more difficult to achieve
Solution Approach 1:
The patent employs a nested configuration where the top layer coil is wound around the bottom layer coil, which itself is wound around the assembling structure. This nesting approach maintains strong electromagnetic interaction while providing built-in alignment guidance that simplifies manufacturing precision requirements.
4Productivity
If a simplified coil pair configuration is used, then the manufacturing process is easier and cycle time is reduced, but the driving precision may be compromised
Solution Approach 1:
The patent merges the bottom layer coil and top layer coil into an integrated structure that is wound around the assembling structure in a single manufacturing process. This merging achieves both manufacturing efficiency through simplified processes and driving precision through the maintained electromagnetic interaction of the coil pair configuration.
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 enhances manufacturing efficiency by reducing assembly time and improving yield rates through simplified coil pair formation and precise electrical connections, ensuring better alignment and 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
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.