Magnetic Levitation Stator Assembly With Cup-Shaped Recess
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Solution Overview
Problem
Existing magnetic bearing devices with a temple construction require complex assembly processes due to the need for precise positioning of individual components, which complicates the assembly of the stator.
Innovation Solution
A magnetic levitation device with a stator design featuring a cup-shaped recess and holding devices that facilitate easy assembly by allowing the longitudinal and transverse legs of the coil cores to be easily positioned and secured, along with a containment can that forms the cup-shaped recess, enabling a simpler and more precise assembly process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If individual components of the stator are positioned with high accuracy before fixing, then the magnetic bearing device achieves reliable operation, but the assembly process becomes complex and time-consuming
Solution Approach 1:
The stator is divided into modular components (coil cores with longitudinal legs and transverse legs) that can be assembled separately and then connected through the holding device, reducing overall assembly complexity while maintaining positioning accuracy
Solution Approach 2:
A holding device is introduced as an intermediary component to facilitate the connection between coil cores. This holding device provides predefined positioning features that simplify the assembly process while ensuring accurate relative positioning of the stator components
2Manufacturing precision
If individual components of the stator are positioned with high accuracy before fixing, then proper magnetic flux conduction is ensured, but the assembly time increases
Solution Approach 1:
The holding device is prepared in advance with predefined positioning features and connection points. This preliminary preparation allows for rapid assembly of the stator components without requiring complex positioning operations during the assembly process itself
Solution Approach 2:
The holding device serves as a mediator that encapsulates the positioning function, allowing coil cores to be connected quickly while maintaining manufacturing precision through the holding device's built-in positioning features
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 proposed design allows for a significantly simplified assembly of the stator components, ensuring accurate positioning and integration of the rotor, thereby enhancing the ease and efficiency of manufacturing magnetic levitation devices.
Implementation Method 1
The longitudinal legs carry windings to generate the electromagnetic rotating fields necessary for the contactless magnetic bearing of the rotor
Implementation Method 2
Magnetic bearing devices for the contactless magnetic bearing of a rotor have the advantage that they do not require mechanical bearings for the rotor. The rotor is supported or stabilized by magnetic forces generated by a stator
Data Source
AI summary
A magnetic levitation device includes a magnetically effective core, a stator including coil cores with longitudinal legs and transverse legs, each coil core includes a longitudinal leg extending from a first end in an axial direction to a second end, and a transverse leg arranged at the second end of the longitudinal leg and extending in a radial direction perpendicular to the axial direction. A winding is provided at each longitudinal leg. The stator includes a cup-shaped recess into which the rotor is inserted, the cup-shaped recess arranged at an axial end of the stator, and the transverse leg of each of the plurality of transverse legs arranged around the cup-shaped recess. A containment can includes the cup-shaped recess contacting end faces of the plurality of transverse legs radially from an inside and includes a radially outer edge partially surrounding the plurality of transverse legs radially from an outside.