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US 11,296,579 B2Granted
Vernier external rotor machine and motor system
AssigneeLenze Drives GmbH
InventorsMatthias Thesseling, Heiko Stichweh, Volker Grabs
Life of this patent
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Abstract
A Vernier external rotor machine for direct drive of a load is provided. The Vernier external rotor machine includes an external rotor configured to mechanically directly drive to a load.
Claims5
A motor system, comprising:
- an external rotor of a Vernier external rotor machine, wherein the external rotor is in the form of a gear wheel, wherein the gear wheel mechanically directly drives a load in the form of a drive chain running around the gear wheel, the external rotor is anisotropic with respect to magnetic properties by way of a tooth structure on an outer circumference of the external rotor forming the gear wheel;
- a stator having a plurality of stator teeth configured to form a flux modulator of the Vernier external rotor machine;
- a rotation angle sensor configured to determine a rotation angle position of the external rotor based on the anisotropy of the external rotor;
- and
- a frequency converter configured to generate drive signals for windings of the stator,
- wherein
- the external rotor includes a housing,
- the frequency converter is arranged inside the housing,
- the rotation angle sensor for determining a rotation angle position of the external rotor is integrated into the frequency converter.
6 more elements
A motor system, comprising:
- an external rotor of a Vernier external rotor machine, wherein the external rotor is in the form of a gear wheel, wherein the gear wheel mechanically directly drives a load in the form of a drive chain running around the gear wheel, the external rotor is anisotropic with respect to magnetic properties by way of a tooth structure on an outer circumference of the external rotor forming the gear wheel;
- a stator having a plurality of stator teeth configured to form a flux modulator of the Vernier external rotor machine;
- a rotation angle sensor configured to determine a rotation angle position of the external rotor based on the anisotropy of the external rotor;
- and
- a frequency converter configured to generate drive signals for windings of the stator,
- wherein
- the external rotor includes a housing,
- the frequency converter is arranged on the outside of the housing, and
- the rotation angle sensor for determining a rotation angle position of the external rotor is integrated into the frequency converter.
6 more elements
Dependencies are inferred from the claim text.