Method for operating an electric machine and electric machines
OwnerUlusar Akbayinventor
Life of this patent
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Abstract
In a method for operating an electric machine with at least two coils and a magnetizable, movable core such as an armature or a rotor, a current of a constant average value is applied from a direct current source at the coils in such a way that the device is operated in the magnetic saturation range of the core. More particularly, one linear and one rotational actuator is proposed for such an operating mode.
Claims25
A method for operating an electric machine with at least two coils and a magnetizable movable core being an armature or a rotor, which comprises the steps of:
- applying a current of a constant average value of a DC voltage source to the at least two coils such that an operation of the electric machine takes place in a magnetic saturation region of the magnetizable movable core.
A coil, comprising:
- an insulating layer;
- and
- windings each formed from a two-dimensionally extending conductive foil, said windings being separated by said insulating layer;
- wherein the coil does not cooperate with a permanent magnet.
A coil configuration, comprising:
- coils each having an insulating layer and windings of a two-dimensionally extending conductive foil, said windings being separated by said insulating layer, said coils being conically shaped to form a circular ring, wherein the coils do not cooperate with a permanent magnet.
An electric actuator, comprising:
- a core formed by at least one magnetizable laminated core part on a central, non-magnetizable shaft, wherein said core is not a permanent magnet.
An electrical machine, comprising:
- a parallel connection of a plurality of actuators, each of said actuators having a core formed by at least one magnetizable laminated core part on a central, non-magnetizable shaft, wherein said core is not a permanent magnet.
A rotatory actuator, comprising:
- coils of a stator being of a conical design and assembled to form a circular coil configuration, wherein the coils do not cooperate with a permanent magnet.
A machine or actuator, comprising:
- a device selected from the group consisting of:
- a parallel connection of a plurality of actuators, each of said actuators having a first core formed by at least one magnetizable laminated core part on a central, non-magnetizable shaft, wherein said first core is not a permanent magnet;
- and
- a second core formed by said at least one magnetizable laminated core part on said central, non-magnetizable shaft, wherein said second core is not a permanent magnet;
- and
- a non-magnetizable housing.
Dependencies are inferred from the claim text.