Optical Processing Turntable Mass Center Positioning
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Solution Overview
Problem
The existing turntable structures in optical processing systems experience unstable force on the locking surface due to the distance between the mass center of the phosphor wheel and the locking surface, leading to vibration and noise during high-speed operation, which reduces the operational life of the phosphor wheel.
Innovation Solution
The optical processing turntable design includes a substrate with a driving component that has a locking surface, where the distance between the locking surface and the mass centers is less than or equal to ⅔ of the overall height, bringing the mass centers closer to the locking surface and reducing the influence of the force arm, thereby minimizing vibration and noise.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the mass center of the phosphor wheel is located between the heat dissipation substrate and the locking surface, then the structural design is simplified, but the distance between the mass center and the locking surface creates a force arm that causes unstable force on the locking surface, leading to vibration and noise
Solution Approach 1:
The patent changes the positional parameter of the mass center relative to the locking surface by adjusting the height dimension. Specifically, the mass center is repositioned such that the distance from the locking surface is reduced to less than or equal to 2/3 of the overall height, thereby changing the force arm length and reducing the harmful vibration and noise effects
2Adaptability or versatility
If the distance from the mass center of the heat dissipation substrate to the mass center of the phosphor wheel plus the distance between the mass center of the phosphor wheel and the locking surface is greater than 90% of the overall height, then the structural arrangement is flexible, but it causes greater vibration and noise during operation
Solution Approach 1:
The patent applies parameter changes by establishing a specific constraint on the height dimension: the sum of distances from the mass centers must be less than or equal to 2/3 of the overall height. This parameter constraint reduces the force arm effect and minimizes vibration and noise while still allowing structural flexibility in other dimensions
3Productivity
If the phosphor wheel rotates at high speed, then the productivity is improved, but the distance between the mass center and the locking surface creates a force arm that causes unstable force, leading to vibration and noise that affect the operating life
Solution Approach 1:
The patent changes the positional parameter of the mass center to reduce the force arm length. By positioning the mass center such that its distance from the locking surface is less than or equal to 2/3 of the overall height, the patent reduces the unstable force generated during high-speed rotation, thereby improving reliability and operating life while maintaining high productivity
Data Source
AI summary
An optical processing turntable and a projection device are provided. The optical processing turntable has a first mass center and a height. The optical processing turntable includes a substrate and a driving component. The substrate has a second mass center. The driving component is disposed on the substrate to drive the substrate to rotate. The driving component has a locking surface. A distance between the locking surface and one of the first mass center and the second mass center relatively far from the locking surface is less than or equal to ⅔ of the height. The invention can effectively reduce the vibration and noise of the optical processing turntable during high-speed operation, and can increase the operating life of the optical processing turntable.