Electric motor
First Claim
Patent Images
1. An electric motor comprising:
- a stationary annular stator having wound stator poles and a rotatably mounted rotor having annularly distributed permanent magnets or electromagnets of alternate polarity, wherein the stator comprises a plurality of separate stator segments each having its own three-phase current connections, wherein each stator segment has a multi-pole and multi-phase configuration and is fed by way of its current connections from its own frequency converter, each frequency converter having a control portion and a power portion, wherein the control portions are connected in a master-slave function and each control portion by way of its own power portion actuates the respectively associated stator segment.
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Abstract
An electric motor having a stationary annular stator with wound stator poles and a rotatably mounted rotor having annularly distributed permanent magnets or electromagnets of alternate polarity, wherein the stator is composed of a plurality of separate stator segments with their own, preferably three-phase current connections, wherein each stator segment is fed by way of the respective current connections from its own frequency converter.
20 Citations
19 Claims
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1. An electric motor comprising:
a stationary annular stator having wound stator poles and a rotatably mounted rotor having annularly distributed permanent magnets or electromagnets of alternate polarity, wherein the stator comprises a plurality of separate stator segments each having its own three-phase current connections, wherein each stator segment has a multi-pole and multi-phase configuration and is fed by way of its current connections from its own frequency converter, each frequency converter having a control portion and a power portion, wherein the control portions are connected in a master-slave function and each control portion by way of its own power portion actuates the respectively associated stator segment.
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2. An electric motor comprising:
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a stationary annular stator having wound stator poles and a rotatably mounted rotor having annularly distributed permanent magnets or electromagnets of alternate polarity, wherein the stator comprises a plurality of separate stator segments each having its own three-phase current connections, wherein each stator segment has a multi-pole and multi-phase configuration and is fed by way of its current connections from its own frequency converter;
a feed line between each frequency converter and stator segment; and
a relay arranged in each feed line.
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3. An electric motor comprising:
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a stationary annular stator having wound stator poles and a rotatably mounted rotor having annularly distributed permanent magnets or electromagnets of alternate polarity, wherein the stator comprises a plurality of separate stator segments each having its own three-phase current connections, wherein each stator segment has a multi-pole and multi-phase configuration and is fed by way of its current connections from its own frequency converter; and
an electronic monitoring system for detecting and displaying the failure of one of the stator segments.
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4. A cable drive, in particular for a cableway or a lift arrangement, comprising:
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an electric motor, the electric motor comprising a stationary annular stator having wound stator poles and a rotatably mounted rotor having annularly distributed permanent magnets or electromagnets of alternate polarity, wherein the stator comprises a plurality of separate stator segments each having its own three-phase current connections, wherein each stator segment has a multi-phase configuration and is fed by way of its current connections from its own frequency converter; and
a cable guide pulley, wherein the pulley is driven by the electric motor. - View Dependent Claims (5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A cable drive, in particular for a cableway or a lift arrangement, comprising:
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an electric motor, the electric motor comprising a stationary annular stator having wound stator poles and a rotatably supported rotor, wherein the stator comprises a plurality of separate stator segments each having its own current connections, wherein the stator segments are each in the form of separate modular structural units which are releasably fixed independently of each other to a stator carrier; and
a cable guide pulley, wherein the pulley is driven by the electric motor. - View Dependent Claims (17, 18, 19)
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Specification