Coupled Planar Rotor Motion for Extra Degrees of Freedom
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Solution Overview
Problem
Planar drive systems lack the necessary degrees of freedom for certain movements, limiting their application in automation technology and manufacturing processes.
Innovation Solution
A planar drive system with a stator unit and two rotors, each equipped with magnet units, where a coupling device allows for coordinated movement between the rotors, enabling additional degrees of freedom by forming and releasing connections between them, and a control unit manages these interactions to achieve complex movements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single rotor is used in the planar drive system, then the system structure is simple, but the degrees of freedom for movement are insufficient
Solution Approach 1:
The patent combines multiple rotors (first rotor and second rotor) into a single planar drive system, allowing them to work together to provide additional degrees of freedom. The rotors can move independently and cooperatively, enabling complex motion patterns that would be impossible with a single rotor, thus resolving the contradiction between movement versatility and structural simplicity.
Solution Approach 2:
The patent introduces a coupling device that can dynamically connect and disconnect the rotors during operation. This dynamic configuration allows the system to adapt its degrees of freedom based on operational requirements, providing flexibility without permanently increasing structural complexity. The coupling device enables the system to switch between different operational modes as needed.
2Adaptability or versatility
If multiple rotors are added to increase movement capabilities, then the degrees of freedom improve, but the device complexity increases
Solution Approach 1:
The patent designs the planar drive system with rotors that can perform multiple functions - they can move independently for individual operations and connect through the coupling device for coordinated operations. This multi-functionality allows the system to achieve complex movement capabilities without proportionally increasing the number of separate components, as each rotor serves both individual and collective purposes.
Solution Approach 2:
The coupling device acts as an intermediary element that manages the interaction between multiple rotors. Rather than requiring direct complex interactions between all rotor pairs, the coupling device mediates their connections, simplifying the overall system architecture while still enabling coordinated movement of multiple rotors, thus improving movement capabilities without linearly increasing device complexity.
3Adaptability or versatility
If rotors can be connected and disconnected during operation, then the versatility of movement increases, but the control complexity increases
Solution Approach 1:
The patent implements a dynamic coupling device that can connect and disconnect rotors during operation based on control signals. This dynamic capability allows the system to reconfigure its degrees of freedom in real-time, providing versatile movement options. The control system manages this dynamic reconfiguration by issuing commands to the coupling device, enabling adaptability without requiring permanently complex mechanical structures.
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 provides enhanced movement capabilities, allowing for movements that would not be possible with individual rotors alone, increasing the system's versatility and applicability in automation and manufacturing.
Implementation Method 1
a plurality of coil groups for generating a stator magnetic field
Implementation Method 2
a driving force is exerted on the rotor by the magnetic interaction of energized coil groups of a stator unit with drive magnets of several magnet arrangements of the rotor
Implementation Method 3
a plurality of magnet units for generating a rotor magnetic field
Data Source
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AI summary
The invention relates to a planar drive system (1) comprising at least one stator unit (3) each with a plurality of coil groups (4) for generating a stator magnetic field, a stator surface (5) above the stator unit (3) and comprising a first rotor (101) and a second rotor (102). The first rotor (101) and the second rotor (102) each have a plurality of magnet units (105) for generating a rotor magnetic field, wherein the first rotor (101) and the second rotor (102) can be moved at least in a first direction (21) and a second direction (22) above the stator surface (5) by means of interaction between the stator magnetic field and the rotor magnetic field. A coupling device (110) is arranged between the first rotor (101) and the second rotor (102), wherein a connection can be formed between the first rotor (101) and the second rotor (102) by means of the coupling device (110). The planar drive system (1) also has a control unit (10) which is designed to output control signals to the stator unit (3). The stator unit (3) is designed to energize the coil groups (4) on the basis of the control signals in such a way that movements of the first rotor (101) and the second rotor (102) coordinated with one another with respect to the coupling device (110) are executed by means of the stator magnetic field.