Anti-tilt Electromagnetic Motor for Camera Modules
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Solution Overview
Problem
Conventional driving modules for electronic devices, such as camera modules, face challenges with high manufacturing costs, large size, high power consumption, and reliability issues due to complex constructions and susceptibility to tilting or swinging under external forces, which degrade image quality.
Innovation Solution
An anti-tilt electromagnetic motor comprising a frame, support base, contact assembly, drive assembly, and elastic assembly, where the support base is movable along a main axis, and the elastic assembly provides pre-loading force to stabilize the contact assembly, preventing tilting and absorbing external impacts, while a coil and magnetic element generate a magnetic force greater than the support base's weight to actuate movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional driving modules use complex driving members such as stepper motors, ultrasonic motors, or piezoelectric actuators to generate driving power, then the driving function is achieved, but the device complexity increases, manufacturing cost increases, and assembly difficulty increases
Solution Approach 1:
The patent replaces complex mechanical driving members (stepper motors, ultrasonic motors, piezoelectric actuators) with a simplified electromagnetic motor system consisting of a coil, magnet, and yoke. The coil generates a magnetic field that interacts with the magnet to produce linear driving force, eliminating the need for complex mechanical transmission elements and reducing overall device complexity while maintaining reliable driving function.
Solution Approach 2:
The patent extracts and eliminates unnecessary transmission elements from the conventional driving module. By using a coil-magnet-yoke configuration that directly generates linear motion, the design removes intermediate mechanical transmission components, simplifying the structure and reducing assembly complexity while preserving the essential driving function.
2Reliability
If conventional driving modules include complex transmission elements to transmit driving power, then the driving function is achieved, but the manufacturing cost increases and assembly difficulty increases
Solution Approach 1:
The patent replaces mechanical power transmission elements with a direct electromagnetic actuation system. The coil generates a magnetic field that directly acts on the magnet to produce linear motion, eliminating the need for mechanical transmission elements and significantly simplifying both manufacturing and assembly processes while maintaining reliable power transmission.
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
The anti-tilt electromagnetic motor enhances the reliability and reduces power consumption of the driving module, ensuring stable lens positioning and improved image quality by preventing tilting and absorbing external forces, thus increasing production yield and reducing manufacturing costs.
Implementation Method 1
The elastic assembly connects the support base to the front lateral sub-frame and is configured to provide a pre-loading force so as to enable the contact assembly to be compressed by the frame and the support base
Implementation Method 2
a coil and magnetic element generate a magnetic force greater than the support base's weight to actuate movement
Data Source
AI summary
An anti-tilt electromagnetic motor is provided, including a frame, a support base, a contact assembly, a drive assembly, and an elastic assembly. The support base is arranged movably relative to the frame along an axis. The contact assembly is disposed between the frame and the support base and directly contacts the frame and the support base. The drive assembly is configured to drive the support base to move. The elastic assembly is configured to provide a pre-loading force so as to enable the contact assembly to be compressed by the frame and the support base.