Five-Axis OIS Voice Coil Motor Structure for Flip Stabilization
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Solution Overview
Problem
Traditional voice coil motors in camera devices can only achieve limited stabilization, primarily allowing back-and-forth movement, and lack the capability for flip stabilization and multiaxis optical image stabilization (OIS) functions, resulting in poor focusing performance.
Innovation Solution
A voice coil motor with a five-axis OIS structure is developed, incorporating a three-axis OIS mechanism for translation and deflection stabilization and a pan-tilt OIS mechanism for flip stabilization, utilizing a drive frame, printed circuit board, coil fixing plate, pan-tilt magnets, and flexible printing coils to achieve comprehensive stabilization across five axes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional voice coil motor structure is used, then the structure is simple, but the stabilization function is limited to back-and-forth movement only
Solution Approach 1:
The voice coil motor is divided into two independent stabilization mechanisms: a three-axis OIS mechanism for translation and deflection stabilization, and a pan-tilt OIS mechanism for flip stabilization. Each mechanism has its own drive frame, magnets, and coils, allowing them to operate independently and achieve comprehensive five-axis stabilization without excessive complexity.
Solution Approach 2:
The voice coil motor structure is designed to perform multiple stabilization functions simultaneously. The three-axis OIS mechanism handles translation and deflection along three axes, while the pan-tilt OIS mechanism handles flip stabilization along two additional axes, making the overall system universal for comprehensive optical image stabilization.
2Adaptability or versatility
If only three-axis OIS mechanism is used, then the structure is simpler, but flip stabilization cannot be achieved
Solution Approach 1:
The OIS system is segmented into two specialized mechanisms: the three-axis OIS mechanism with its drive frame, magnets, and coils for translation and deflection, and the separate pan-tilt OIS mechanism with its own drive frame, magnets, and coils for flip stabilization. This segmentation allows each mechanism to be optimized for its specific function while maintaining overall system manageability.
3Reliability
If multiaxis OIS function is added, then the stabilization performance is improved, but the device complexity increases
Solution Approach 1:
The multiaxis OIS system is divided into two independent mechanisms that can be designed and manufactured separately. The three-axis OIS mechanism handles translation and deflection along three axes using its own set of magnets and coils, while the pan-tilt OIS mechanism handles flip stabilization along two additional axes with its own magnets and coils, reducing overall design complexity.
Solution Approach 2:
Two independent OIS mechanisms are merged into a single integrated voice coil motor structure. The three-axis OIS mechanism and pan-tilt OIS mechanism share common components such as the housing and control circuitry, while maintaining independent operational capabilities, achieving multiaxis stabilization with controlled complexity.
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 solution enables quick horizontal displacement, deflection, and flip stabilization, enhancing the overall stabilization performance of the voice coil motor and improving focusing capabilities in camera devices.
Implementation Method 1
the force between the three-axis OIS coils and the magnets in the voice coil motor body drives the voice coil motor body and the drive frame to reset quickly
Implementation Method 2
the force between the pan-tilt coils and the pan-tilt magnets drives the voice coil motor body and the drive frame to quickly correct the resetting
Data Source
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AI summary
Disclosed are a voice coil motor with a five-axis OIS structure, a camera device, and electronic equipment. The key points of technical solutions are: the voice coil motor with a five-axis OIS structure includes a voice coil motor body, the voice coil motor body is provided with a three-axis OIS mechanism, and a pan-tilt OIS mechanism is disposed outside the three-axis OIS mechanism. A translation and deflection stabilization function of the voice coil motor is realized through the three-axis OIS mechanism, a flip stabilization function of the voice coil motor is realized through the pan-tilt OIS mechanism, a five-axis OIS function is thus realized, and the stabilization performance of the voice coil motor is improved.