Optical Element Driving Mechanism With Integrated Circuit Mounting

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Solution Overview

Problem

Modern electronic devices with image-capturing or video-recording functions face challenges in reducing the size of the optical element driving mechanism while maintaining durability.

Innovation Solution

The optical element driving mechanism includes a movable portion, a fixed portion, a first driving assembly, and a circuit assembly. The movable portion is connected to an optical element and moves relative to the fixed portion, driven by the first driving assembly. The circuit assembly is connected to an external circuit and affixed on the fixed portion, allowing for miniaturization and increased durability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Volume of moving object

If the optical element driving mechanism is miniaturized to fit modern thin and lightweight electronic devices, then the device size is reduced, but the durability and reliability of the mechanism deteriorate

Engineering Contradiction:
Improvesize of driving mechanismVSAvoiddurability of mechanism
Core Design Contradiction:
Volume of moving objectVSReliability

Solution Approach 1:

The patent merges the circuit assembly with the fixed portion by affixing it directly onto the fixed portion. This integration reduces the overall number of separate components and minimizes the space required, thereby reducing the size of the driving mechanism while maintaining structural integrity and reliability through the unified design.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The circuit assembly is affixed on the surface of the fixed portion rather than being mounted separately in three-dimensional space. This two-dimensional integration approach reduces the vertical height and overall volume of the mechanism while preserving all necessary electrical connections and functional reliability.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Length of stationary object

If the optical element driving mechanism is miniaturized, then the device thickness is reduced, but the structural strength and stability deteriorate

Engineering Contradiction:
Improvethickness of mechanismVSAvoidstructural strength
Core Design Contradiction:
Length of stationary objectVSStrength

Solution Approach 1:

By integrating the circuit assembly directly onto the fixed portion, the patent eliminates separate mounting structures and fasteners that would increase thickness. The merged structure achieves structural strength through the inherent rigidity of the integrated components rather than additional mechanical fastening elements.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The fixed portion serves as a composite structure that mechanically supports the optical element while electrically supporting the circuit assembly. This multi-functional fixed portion achieves both structural strength and electrical functionality within a reduced thickness profile.

Inventive Principle:
Principle #40Composite materials

Data Source

PatentUS12235510B2Optical element driving mechanism
Publication Date: 2025.02.25 ACTUTEK CORP
  • US12235510B2 patent drawing
  • US12235510B2 patent drawing
  • US12235510B2 patent drawing

AI summary

An optical element driving mechanism is provided. The optical element driving mechanism includes a movable portion, a fixed portion, a first driving assembly, and a circuit assembly. The movable portion is used for connecting to an optical element. The movable portion is movable relative to the fixed portion. The first driving assembly is used for driving the movable portion to move relative to the fixed portion. The circuit assembly is used for connecting to an external circuit, and is affixed on the fixed portion.