Camera Module Assembly for Synchronized Lens and PCB Stabilization
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Solution Overview
Problem
Conventional optical anti-shake cameras fail to meet the increasing demands for high image quality in video shooting due to limitations in gimbal systems, particularly affecting the stability and synchronization of the lens assembly and circuit board during camera movement.
Innovation Solution
A camera module design incorporating a housing with a movable lens assembly driven by a first drive assembly and a circuit board driven by a second drive assembly, synchronized to move in the same direction, using magnetic and coil interactions to enhance stability and prevent pulling between components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If a gimbal system is used to improve anti-shake performance, then the movement range of the lens assembly is increased, but the synchronization between the lens assembly and circuit board deteriorates
Solution Approach 1:
The patent combines the lens assembly and circuit board into a integrated movable unit that moves together as one system. The circuit board is positioned and fixed relative to the lens assembly, ensuring they move synchronously. This merging eliminates the relative motion and synchronization issues that would occur if they moved independently, while still maintaining the extended movement range provided by the gimbal system.
Solution Approach 2:
The patent introduces a movable support structure that acts as an intermediary between the lens assembly and the housing. This support structure moves together with the lens assembly and carries the circuit board, ensuring synchronized movement. The intermediary structure provides a stable platform that maintains the relative positions of both components during anti-shake operations.
2Stability of the object's composition
If the circuit board is fixed in the housing, then the structural stability is improved, but the pulling force on the lens assembly increases during movement
Solution Approach 1:
The patent transitions from a static circuit board fixed in the housing to a dynamic configuration where the circuit board moves with the lens assembly. The circuit board is mounted on the movable support structure, allowing it to dynamically follow the lens assembly's movement. This eliminates the pulling force that would occur if the circuit board remained stationary while the lens assembly moved, as both components now move together without relative motion.
3Reliability
If the lens assembly moves independently, then the anti-shake capability is improved, but the relative motion between lens assembly and circuit board increases
Solution Approach 1:
The patent merges the lens assembly and circuit board into a single movable system where both components are positioned on the same movable support structure. This ensures they move together as one unit, eliminating relative motion between them. The merged structure maintains the anti-shake capability by allowing the entire assembly to move in response to shaking, while preventing internal relative motion that would compromise system reliability.
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
Enhances the anti-shake performance by allowing the lens assembly and circuit board to move synchronously, expanding their movement range and reducing relative motion, thereby improving image stabilization and user experience.
Implementation Method 1
using magnetic and coil interactions to enhance stability
Implementation Method 2
using magnetic and coil interactions to enhance stability
Implementation Method 3
using magnetic and coil interactions to enhance stability
Implementation Method 4
using magnetic and coil interactions to enhance stability
Data Source
AI summary
A camera module and an electronic device. The camera module includes: a housing, an accommodating chamber being provided in the housing; a lens assembly, the lens assembly being movably disposed in the accommodating chamber; a first drive assembly, the first drive assembly being connected to the lens assembly so as to drive the lens assembly to move, and at least part of the first drive assembly being disposed on an inner side wall of the housing; a circuit board, the circuit board being connected to the lens assembly; and a second drive assembly, the second drive assembly being disposed in the housing, and at least part of the second drive assembly being connected to the circuit board so as to drive the circuit board to move.