Rotatable Device Brush Contact Eliminates Wire Tangling
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Solution Overview
Problem
Existing rotatable devices and windmills face issues with heavy loads on motor and rotary body due to integrated power supply and wiring, leading to reduced service life and tangling problems.
Innovation Solution
A rotatable device with a supporting tube, bearing, and electrical conductive member using a brush to maintain electrical contact, preventing wire tangling and reducing loads on the rotary body, featuring a simple structure and low production cost.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the power supply and wiring are integrated with the rotary body, then the lamp can be powered during rotation, but the heavy loads reduce the service life of the motor and rotary body
Solution Approach 1:
The patent divides the electrical system into two separate parts: the power supply remains stationary on the support base, while only the electrical contact component (brush) rotates with the rotary body. This segmentation eliminates the heavy wiring load from the rotating parts, reducing mechanical stress on the motor and rotary body, thereby extending their service life while maintaining continuous power supply to the lamp.
Solution Approach 2:
The patent introduces a brush as an intermediary component that transfers electrical power from the stationary power supply to the rotating lamp. This brush acts as a mediator, allowing electrical contact without requiring heavy wiring on the rotary body, thus solving the contradiction between power supply and reduced mechanical load.
2Use of energy by moving object
If the power supply is fixed on the lamp base, then electricity can be provided to the lamp, but wire tangling occurs during rotation
Solution Approach 1:
The patent extracts the power supply from the rotating lamp base and places it on the stationary support base. Only the essential electrical contact function remains on the rotating side, implemented through a brush. This extraction eliminates the wire tangling problem entirely, as no wires need to be stretched or twisted during rotation.
3Illumination intensity
If light strips and power supply are provided on the windmill, then the windmill can illuminate, but the heavy loads increase resistance and reduce service life
Solution Approach 1:
The patent applies segmentation by separating the heavy power supply unit from the rotating windmill blades. The power supply remains stationary on the support base, while only a lightweight brush rotates with the windmill to maintain electrical contact. This significantly reduces the rotational mass and moment of inertia, decreasing resistance to rotation and extending the service life of the windmill's rotary components while maintaining full illumination capability.
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 ensures long service life of the rotary body and windmill components by preventing wire tangling and maintaining smooth rotation and illumination, while maintaining a low production cost and simple structure.
Implementation Method 1
a brush that cooperates with the electrical conductive member
Data Source
AI summary
A rotatable device powered by continued electricity supply, having a supporting shaft, a bearing, a rotary body, a mounting seat, an electrical conductive member, and a brush. The bearing includes an outer ring and an inner ring. The rotary body is connected to the outer ring. One of the electrical conductive member and the brush is connected to the rotary body, and another one of the electrical conductive member and the brush is connected to the mounting seat. A windmill that uses the rotatable device is also provided.