Planar Rotor Energy Transfer for Continuous Motion Charging
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Solution Overview
Problem
Existing planar drive systems face challenges in ensuring a reliable and efficient energy supply to process devices on rotors during operation and movement, necessitating a solution that allows for seamless energy transfer without disrupting the transport process.
Innovation Solution
A planar drive system with a stator assembly featuring an energy transfer structure and a rotor with an energy storage unit, utilizing contactless induction coils or sliding contacts for energy transfer, enabling energy charging during movement and allowing rotors to remain positioned on the stator for continuous operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If contactless induction coils or sliding contacts are used for energy transfer, then energy supply reliability is improved, but device complexity increases
Solution Approach 1:
The patent introduces an energy transfer structure with induction coils as an intermediary between the stator and rotor. This mediator enables contactless energy transfer through electromagnetic coupling, ensuring reliable power supply to the rotor while it moves on the stator without physical contact, thus improving reliability without requiring direct mechanical connections
Solution Approach 2:
The patent replaces traditional mechanical contact-based energy transfer (such as sliding contacts or commutators) with an electromagnetic field-based induction system. The stator's induction coils generate a time-varying magnetic field that induces current in the rotor's conductor rings, eliminating mechanical wear and contact issues while maintaining continuous energy supply
2Adaptability or versatility
If rotors can be positioned at various locations on the stator, then transport flexibility is improved, but energy transfer reliability deteriorates
Solution Approach 1:
The patent implements continuous energy transfer by maintaining constant electromagnetic coupling between the stator's induction coils and the rotor's conductor rings throughout the rotor's movement. The induction coils are energized continuously to generate a sustained magnetic field, ensuring uninterrupted power supply regardless of the rotor's position on the stator, thus maintaining both flexibility and reliability
Solution Approach 2:
The energy transfer structure is designed with universal applicability across the entire stator surface. The induction coils are arranged to provide consistent electromagnetic coupling at multiple positions, allowing the rotor to receive energy reliably whether it is stationary or moving between different locations on the stator, enabling both flexible positioning and reliable energy transfer
3Productivity
If energy transfer occurs during rotor movement, then productivity is improved, but energy transfer stability worsens
Solution Approach 1:
The patent enables continuous energy transfer during rotor movement by maintaining constant electromagnetic coupling between the stator's induction coils and the rotor's conductor rings. The induction coils are energized continuously to generate a sustained magnetic field, ensuring uninterrupted power supply regardless of the rotor's position or velocity, thus maintaining both productivity and stability
Solution Approach 2:
The patent replaces mechanical contact-based energy transfer with electromagnetic induction, eliminating the instability associated with mechanical wear, contact bounce, and friction during movement. The contactless electromagnetic coupling provides smooth and stable energy transfer throughout the rotor's motion, enabling continuous operation without interrupting the transport process
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
This solution ensures uninterrupted energy supply to rotors, optimizing transport processes by allowing energy transfer at various positions, reducing delays, and enabling efficient operation of process devices on the rotors.
Implementation Method 1
an energy transfer from the energy transfer structure to the rotor may be achieved when the transfer unit is coupled to the transfer counter unit
Implementation Method 2
a drive force is exerted upon the rotor by the magnetic interaction of energized coil groups of the stator assembly with drive magnets of a plurality of magnet arrangements of the rotor
Data Source
AI summary
A planar drive system comprises a stator assembly having a plurality of coil groups for generating a stator magnetic field, and at least one rotor having a plurality of magnet assemblies for generating a rotor magnetic field. The rotor can be driven on the stator assembly via a magnetic coupling between the stator magnetic field and the rotor magnetic field. The rotor comprises an energy storage, and an energy transfer structure having a transfer unit is configured on the stator assembly. The rotor also comprises a transfer counter unit which can be coupled to the transfer unit. Energy transfer from the energy transfer structure to the rotor can be achieved when the transmission element is coupled to the transfer counter element. A method is also provided for transferring energy to a rotor in the planar drive system.