Multi-Rotor Direct Drive Layout With Wireless Rotor Control
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Solution Overview
Problem
Conventional multi-rotor direct drive transmission systems have complex structures due to frequent power on and power off states of stators, requiring multiple drivers and a complex control system, which complicates the system design and increases costs.
Innovation Solution
A multi-rotor direct drive transmission system with a simplified structure that includes stator units connected by a guide rail, rotor units with a sliding connection, and a power supply unit, where the winding is directly controlled by a drive device connected to an external control system via wireless communication, and uses fewer devices, including a movable cable, battery, or wireless chargeable battery for power supply.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple stators are used to drive multiple rotors, then the transmission capability is improved, but the system structure becomes complex and requires frequent power on/off switching
Solution Approach 1:
The patent inverts the conventional control architecture by placing the drive device on the rotor rather than the stator. This allows the rotor to actively control the stator's magnetic field, eliminating the need for frequent power on/off switching of multiple stators and simplifying the overall system structure while maintaining multi-rotor transmission capability
Solution Approach 2:
The single stator with multiple magnetic steels serves multiple rotors simultaneously through the shared magnetic field, making the stator a universal driving component that eliminates the need for separate drivers for each rotor, thereby reducing system complexity
2Measurement precision
If each stator is matched with a driver for precise control, then the control precision is improved, but the control system becomes complex with too many devices
Solution Approach 1:
The patent merges the control function into a single drive device located on the rotor, which controls all magnetic steels in the stator through wireless communication. This consolidation maintains precise control capability while dramatically reducing the number of control devices from multiple drivers to a single integrated system
Solution Approach 2:
The patent introduces a wireless communication module as an intermediary between the drive device and the magnetic steels, enabling precise control without direct electrical connections. This mediator allows the single drive device to control multiple magnetic steels accurately while avoiding the complexity of multiple wired connections and drivers
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 system achieves easy control and reduced costs by minimizing device complexity and simplifying the control system, while maintaining efficient movement of rotor units using fewer components and enabling wireless charging options.
Implementation Method 1
The winding is spaced and arranged directly opposite to the magnetic steel, and the winding is configured to drive the magnetic steel to cause the each of the multiple rotor units to move along the guide rail
Data Source
AI summary
The present disclosure provides a multi-rotor direct drive transmission system, which includes multiple stator units, a guide rail, and multiple rotor units. Each of the multiple stator units includes a stator and a magnetic steel, and the guide rail is attached to the stator. Each of the multiple rotor units includes a rotor, a winding, a drive device, and a power supply unit. The winding is spaced from and arranged directly opposite to the magnetic steel, and the winding is configured to drive the magnetic steel. The drive device is electrically connected to the winding, and the drive device is connected to the control system by wireless communication. The multi-rotor direct drive transmission system further includes a conductive strip. The power supply unit is a movable cable. The multi-rotor direct drive transmission system of the present disclosure is simple in structure, and is easy to control and use.