Asymmetrical Stator Support for Vibration Reduction in Rotation Apparatus
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Solution Overview
Problem
Current motor and generator assembly structures fail to effectively reduce vibration, limit power output, and provide inadequate ventilation, leading to poor cooling effects.
Innovation Solution
A rotation apparatus design featuring asymmetrical inner holes on intermediate support boards for stator support, with air flow channels formed between the stator and support boards to enhance cooling and reduce vibration, allowing for increased power output through a shrinkage fit connection and pin securing mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If symmetrical support boards are used to hold the stator, then the structure is simple and easy to manufacture, but the vibration of the motor or generator cannot be effectively reduced
Solution Approach 1:
The patent applies asymmetry by designing the support board with an asymmetrical inner hole structure where the upper half has a different configuration than the lower half. Specifically, the upper half features a flat contact surface while the lower half has a semi-circular contact surface, creating an asymmetrical support configuration that reduces harmonic response in the vertical direction and effectively lowers vibration without complicating manufacturing
2Temperature
If the machine base structure is optimized for ventilation, then cooling effect improves, but the power output of the motor or generator is limited
Solution Approach 1:
The patent applies segmentation by dividing the air flow path into distinct upper and lower flow channels. The upper flow channel is formed between the stator and the driving end intermediate support board, while the lower flow channel is formed by the side board, bottom board, and outer side of the lower half of the driving end intermediate support board. This segmented approach optimizes ventilation for cooling without compromising power output
3Object-affected harmful factors
If the stator is securely supported to reduce vibration, then vibration decreases, but the air flow channel design becomes complex
Solution Approach 1:
The patent applies multi-functionality by designing the asymmetrical inner hole of the support board to simultaneously serve multiple functions: providing secure support contact for the stator to reduce vibration, and forming air flow channels for ventilation. The upper half with flat contact and lower half with semi-circular contact create both support and flow path functions in a single integrated structure, avoiding the need for separate complex ventilation components
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 design effectively reduces vibration, improves cooling efficiency, and increases power output by minimizing harmonic response and enhancing air gap flux density, while being easy to manufacture and implement.
Implementation Method 1
This structure can provide stator core with secured support while prevent the high frequency vibration of the stator from being transmitted to the machine base which will cause excessive deformation to the machine base. This particular design is able to meet the requirement of low vibration by reducing harmonic response in the vertical direction.
Implementation Method 2
According to the present application, the stator is in partial contact with upper half of the driving end intermediate support board and in semi-circular contact with the lower half of the driving end intermediate support board. This structure is easy to manufacture and implement. It not only improves the cooling effect to periphery of stator and lowers vibration
Implementation Method 3
periphery of stator is connected with the inner holes of the driving end intermediate support board and non-driving end intermediate support board through shrinkage fit
Data Source
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AI summary
A rotation apparatus comprises a machine base (11) and a stator (12). The machine base comprises a driving end intermediate support board (13) and a non-driving end intermediate support board (14) disposed parallel along the length direction of the machine base. Inner holes used for supporting the stator are separately provided in the driving end intermediate support board and the non-driving end intermediate support board. The inner holes in the driving end intermediate support board are asymmetrical on the top and the bottom. The vibration of the rotation apparatus can be effectively reduced, the output power is improved, and a good cooling effect is provided.