Magnetic Levitation Stator Assembly With Holding Elements
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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 legs of the coil cores to be positioned accurately using holding elements, followed by the application of windings and a thermal potting compound, ensuring correct component alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If individual components of the stator are positioned with high accuracy using complex assembly processes, then manufacturing precision is improved, but device complexity increases
Solution Approach 1:
The patent introduces holding devices as intermediary components that facilitate the assembly process. These holding devices include holding elements that receive and position the longitudinal legs of the coil cores, acting as a mediator between the individual stator components and enabling accurate positioning without complex direct assembly procedures
Solution Approach 2:
The holding devices are designed to pre-position the longitudinal legs before final assembly. By providing predetermined positioning features and guidance structures in the holding devices, the patent enables accurate component alignment to be achieved in advance, simplifying the subsequent assembly steps
2Ease of manufacture
If multiple holding devices and holding elements are introduced to position components, then ease of manufacture is improved, but device complexity increases
Solution Approach 1:
The patent combines multiple holding functions into integrated holding devices. The holding devices are designed to simultaneously receive and position multiple longitudinal legs through coordinated holding elements, merging several positioning operations into a unified assembly structure that reduces the number of separate components needed
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 enables a significantly simpler and more precise assembly of the stator, reducing assembly complexity and ensuring accurate component positioning for effective magnetic levitation and rotation of the rotor.
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 of the magnetic bearing device
Data Source
AI summary
A magnetic levitation device includes a magnetically effective core and a stator including coil cores. Each coil core includes a longitudinal leg and a transverse leg at an end of the longitudinal leg. A concentrated winding surrounds each longitudinal leg. The stator has a cup-shaped recess to receive the rotor. The transverse legs are arranged around the cup-shaped recess. First and second holding device and a second holding device are connected to each other, The first holding device includes a bottom plate on which holding elements are provided, which extend in the axial direction and receive exactly one of the longitudinal legs. The second holding device receives the transverse legs.