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US 12,732,039 B2Granted
Dynamoelectric rotary machine
AssigneeSiemens Aktiengesellschaft
InventorsRolf Vollmer, Reiner Seufert
Life of this patent
Estimating the term…
Abstract
A dynamoelectric rotary machine includes a stator with a stator winding and a rotor. The rotor includes an at least substantially cylindrical recess for receiving a shaft. The rotor includes a first material and a second material, wherein a region of the rotor in which a d-axis flux path of a magnetic flux lies is formed of the first material. The flux path caused by a magnetic stator field that can be generated by the stator winding, wherein a region of the rotor in which a q-axis flux path of the magnetic flux lies is formed of the second material.
Claims14
A rotor for a dynamoelectric rotary machine, the rotor comprising a rotor layer, said rotor layer comprising:
- an at least substantially cylindrical recess for receiving a shaft;
- a first material made of a soft magnetic material and formed in a region of the rotor in which a d-axis flux path of a magnetic flux caused by a magnetic stator field generated by a stator winding is located;
- a second material made of a non-magnetic material and formed in a region of the rotor in which a q-axis flux path of the magnetic flux is located, with the first material and the second material being connected by a material bond through sintering;
- a first rotor region in surrounding relation to an inner periphery of the rotor layer in which first rotor region the second material is formed;
- a second rotor region adjacent to an outer periphery of the rotor layer in which second rotor region the second material is formed, with a d-axis of the dynamoelectric rotary machine running through the second rotor region;
- a third rotor region arranged between the first and second rotor regions and formed in a shape of a rectangle, with the first rotor region having a portion shaped so as to be flush with a side of the tangential rectangular third rotor region, and with the second rotor region having a portion shaped so as to be flush with a side of the tangential rectangular third rotor region;
- a third material made of a permanent magnetic material and arranged in the third rotor region such as to be tangential to the first and second rotor regions;
- two further rotor regions adjacent to the outer periphery of the rotor layer, in which two further rotor regions the second material is formed;
- and
- an additional rotor region between the two further rotor regions and tangential thereto, in which additional rotor region the third material is formed, with a q-axis of the dynamoelectric rotary machine running through the additional region.
7 more elements
A dynamoelectric rotary machine, comprising:
- a stator comprising a stator winding generating a magnetic stator field to cause a magnetic flux;
- and
- a rotor comprising a rotor layer, said rotor layer comprising an at least substantially cylindrical recess for receiving a shaft, a first material made of a soft magnetic material and formed in a region of the rotor in which a d-axis flux path of a magnetic flux caused by a magnetic stator field generated by a stator winding is located, a second material made of a non-magnetic material and formed in a region of the rotor in which a q-axis flux path of the magnetic flux is located, with the first material and the second material being connected by a material bond through sintering, a first rotor region in surrounding relation to an inner periphery of the rotor layer in which first rotor region the second material is formed, a second rotor region adjacent to an outer periphery of the rotor layer in which second rotor region the second material is formed, with a d-axis of the dynamoelectric rotary machine running through the second rotor region, a third rotor region arranged between the first and second rotor regions and formed in a shape of a rectangle, with the first rotor region having a portion shaped so as to be flush with a side of the tangential rectangular third rotor region, and with the second rotor region having a portion shaped so as to be flush with a side of the tangential rectangular third rotor region, a third material made of a permanent magnetic material and arranged in the third rotor region such as to be tangential to the first and second rotor regions, two further rotor regions adjacent to the outer periphery of the rotor layer, in which two further rotor regions the second material is formed, and an additional rotor region between the two further rotor regions and tangential thereto, in which additional rotor region the third material is formed, with a q-axis of the dynamoelectric rotary machine running through the additional region.
Dependencies are inferred from the claim text.