Optical Element Drive Mechanism With Pre-Pressure Shock Stabilization
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Solution Overview
Problem
The challenge is to design a miniaturized driving mechanism for optical elements in electronic devices that balances size reduction with stability and optical quality, particularly in a miniaturizing environment where existing mechanisms struggle to maintain performance and convenience.
Innovation Solution
The optical element driving mechanism incorporates a movable part, a fixed part, a driving assembly, and a pressure assembly with a plate structure that exerts pre-pressure, utilizing magnetic elements and coils for movement control, along with an external assembly to manage pre-pressures and optimize space usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the driving mechanism is miniaturized to reduce device size, then the device thickness and overall dimensions are reduced, but the stability and optical quality deteriorate
Solution Approach 1:
The pressure assembly is divided into multiple functional components: a pressure plate for applying force, an elastic component for providing restoring force, and a damping component for shock absorption. This segmentation allows each component to be optimized independently while working together to maintain stability in the miniaturized driving mechanism.
Solution Approach 2:
The pressure assembly combines multiple materials with different properties: elastic materials for the elastic component to provide restoring force, damping materials for shock absorption, and rigid materials for the pressure plate. This composite approach enables the miniaturized mechanism to maintain stability through synergistic material properties.
2Length of moving object
If the driving mechanism is miniaturized, then device thickness is reduced, but shock resistance and structural stability worsen
Solution Approach 1:
The damping component is pre-installed in the pressure assembly to provide shock absorption before external shocks occur. This beforehand cushioning protects the miniaturized driving mechanism from shock impacts despite its reduced thickness, maintaining structural stability during unexpected external forces.
3Reliability
If a pressure assembly is added to exert pre-pressure, then stability and optical quality improve, but device complexity increases
Solution Approach 1:
The pressure assembly merges the pressure application function, elastic restoring force, and shock damping into a single integrated structure. This merging reduces the number of separate components needed, thereby limiting the increase in device complexity while still achieving improved stability and optical quality through the pre-pressure effect.
Solution Approach 2:
The pressure assembly is designed to perform multiple functions simultaneously: applying pre-pressure for stability, providing elastic restoring force for positioning, and damping shocks for protection. This multi-functionality reduces the need for separate dedicated components, limiting complexity increase while achieving multiple benefits.
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 solution enables miniaturization while maintaining stability and optical quality, effectively absorbing shocks and providing a more stable internal structure, allowing for better performance in reduced device sizes.
Implementation Method 1
The corresponding part of the movable part is movably connected to the corresponding part of the fixed part via the elastic part
Implementation Method 2
The pressure assembly is used to exert a first pre-pressure onto the movable part
Data Source
AI summary
An optical element driving mechanism is provided. The optical element driving mechanism includes a movable part, a fixed part, a driving assembly, and a pressure assembly. The movable part connects an optical element. The movable part moves relative to the fixed part. The driving assembly drives the movable part to move relative to the fixed part, and the pressure assembly exerts a first pre-pressure onto the movable part.