Camera Module Coil Frame Layout for Stable Lens Positioning
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Solution Overview
Problem
Existing camera modules experience lens position dispersion due to inconsistent curvature in bending regions during manufacturing, leading to increased process difficulty and cost.
Innovation Solution
A camera module design featuring a housing and coupling frame with coils on three vertical surfaces, eliminating bending regions, and utilizing magnets and coils to stabilize lens position without power, combined with a middle guide for precise lens movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If bending regions are used in the coupling frame design, then the structural flexibility is improved, but lens position dispersion increases due to inconsistent curvature during manufacturing
Solution Approach 1:
The patent removes the bending regions from the coupling frame design, extracting the problematic curved portions that caused inconsistent curvature during manufacturing. The coupling frame is redesigned with only vertical surfaces, eliminating the source of lens position dispersion while maintaining structural integrity through alternative design approaches.
Solution Approach 2:
Instead of using bending regions to achieve structural flexibility, the patent inverts the approach by using a rigid frame with coils positioned on vertical surfaces. The flexibility and positioning functionality are transferred to the electromagnetic actuation system rather than relying on structural curvature, thereby eliminating manufacturing inconsistencies.
2Adaptability or versatility
If complex bending regions are incorporated in the coupling frame, then the design adaptability is improved, but process difficulty and manufacturing cost increase
Solution Approach 1:
The patent extracts and removes the complex bending regions from the coupling frame, simplifying the manufacturing process. By eliminating the need to form and control curved regions, the manufacturing process becomes more straightforward and less prone to variability, directly reducing process difficulty and cost.
Solution Approach 2:
The patent changes the geometric parameters of the coupling frame by eliminating curvature and using only vertical surfaces. This parameter change simplifies the manufacturing process while the required adaptability is achieved through electromagnetic actuation parameters rather than structural geometry.
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
Reduces lens dispersion and manufacturing complexity while maintaining lens stability, even when power is off, and lowers production costs.
Implementation Method 1
a first coil on the second main surface... the first magnet overlaps the first coil in a third direction perpendicular to the first direction and the second direction
Implementation Method 2
a second coil on the fourth side surface... the second magnet faces the second coil
Implementation Method 3
a third coil on the fifth side surface... the third magnet faces the third coil
Implementation Method 4
utilizing magnets and coils to stabilize lens position without power
Data Source
AI summary
Provided is a camera module including a housing, and a coupling frame on the housing, wherein the housing includes a first main surface, and a first side surface and a second side surface connected to the first main surface and spaced apart in a first direction, and wherein the coupling frame includes a second main surface, a third side surface and a fourth side surface connected to the second main surface and spaced apart in the first direction, a first coil on the second main surface, a second coil on the third side surface, and a third coil on the fourth side surface.