Electrodynamic converter

Patent metadata

Field	Value
Publication number	US-10756608-B2
Application number	US-201515513063-A
Country	US
Kind code	B2
Filing date	Sep 22, 2015
Priority date	Sep 22, 2014
Publication date	Aug 25, 2020
Grant date	Aug 25, 2020

Abstract

The application relates to an electrodynamic converter (1), comprising a coil (11), a claw disk (7) associated with the coil (11) and having a disk component (7a) that can be rotated about an axis of rotation and a disk component (7b) that is stationary relative thereto, comprising a further claw disk (8) associated with the coil (11) and having a disk component (8a) that can be rotated about the axis of rotation and a disk component (8b) that is stationary relative thereto, and comprising magnetic flux components, which have oppositely magnetized magnetic components (9, 10; 12, 13) and magnetic flux elements composed of soft magnetic material, of which at least some are associated with a magnetic flux through the claw disk (7) or a further magnetic flux through the further claw disk (8) during operation, which are formed in alternation as the rotatable disk component (7a) of the claw disk (7) and the rotatable disk component (8a) of the further claw disk (8) are rotated, wherein the magnet-flux-closing relative positions for the claw disk (7) and the further claw disk (8) are formed having an angular offset to each other, as are also non-magnetic relative positions.

First claim

The invention claimed is:

1. An electrodynamic converter comprising
a coil,
a claw disk that is assigned to the coil and arranged on one side of the coil, wherein said claw disk features a disk component that is rotatable about an axis of rotation and a disk component that is stationary relative thereto, and wherein the rotatable and the stationary disk components feature mutually assigned claws, which alternately assume relative positions for the claw disk, in which the magnetic flux circuit is closed and not closed, during the rotation of the rotatable disk component,
an additional claw disk that is assigned to the coil and arranged on the opposite side of the coil, wherein said additional claw disk features a disk component that is rotatable about the axis of rotation and a disk component that is stationary relative thereto, and wherein the rotatable and the stationary disk components feature mutually assigned claws, which alternately assume relative positions for the additional claw disk, in which the magnetic flux circuit is closed and not closed, during the rotation of the rotatable disk component, and
magnetic flux components that feature oppositely magnetized magnetic components and magnetic flux elements of soft magnetic material, wherein at least some of said magnetic flux components are respectively assigned to a magnetic flux through the claw disk or an additional magnetic flux through the additional claw disk, which are alternately generated during the rotation of the rotatable disk component of the claw disk and the rotatable disk component of the additional claw disk,
wherein the relative positions for the claw disk and the additional claw disk, in which the magnetic flux circuit is closed, and the relative positions, in which the magnetic flux circuit is not closed, are respectively realized with an angular offset to one another.

2. The electrodynamic converter according to claim 1 , characterized in that the oppositely magnetized magnetic components comprise permanent magnets.

3. The electrodynamic converter according to claim 1 , characterized in that the oppositely magnetized magnetic components comprise electric magnets.

4. The electrodynamic converter according to claim 1 , characterized in that the oppositely magnetized magnetic components comprise magnetic components, which are magnetized axially and/or radially referred to the axis of rotation.

5. The electrodynamic converter according to claim 1 , characterized by a housing, wherein one or more housing parts of the housing are realized in the form of magnetic flux elements of soft magnetic material.

6. The electrodynamic converter according to claim 1 , characterized in that the magnetic flux elements are realized such that they bypass a bearing device for a shaft rotating about the axis of rotation and thereby close the magnetic flux circuit.

7. The electrodynamic converter according to claim 1 , characterized in that the claw disk and the additional claw disk respectively have multiple relative positions, in which the magnetic flux circuit is closed.

8. The electrodynamic converter according to claim 1 , characterized in that claw arrangements, which are in the same embodiment formed on the rotatable disk component of the claw disk and on the rotatable disk component of the additional claw disk, are arranged with an angular offset to one another.

9. The electrodynamic converter according to claim 1 , characterized in that the rotatable disk component of the claw disk and/or in the additional claw disk is realized in the form of an inner disk component and the stationary disk component is realized in the form of an outer disk component.

10. The electrodynamic converter according to claim 1 , characterized in that the claws on the rotatable disk component and the stationary disk component are realized in the form of claws with the shape of a circular arc segment.

11. The electrodynamic converter according to claim 1 , characterized in that a gap between opposing edges of assigned claws formed on the rotatable and the stationary disk component has an essentially constant width in the radial direction in the relative position, in which the magnetic flux circuit is closed.

12. The electrodynamic converter according to claim 1 , characterized in that the coil is arranged on a rotor shaft and rotatable together with this rotor shaft.

Assignees

• Univ Berlin Tech
• Univ Berlin Tech

Inventors

• Mönnich Oliver
• Kelp Martin
• Dreyer Robert

Classifications

• H02K1/2726

  the rotor consisting of a single magnet or two or more axially juxtaposed single magnets · CPC title

• H02K21/44 Primary

  with armature windings wound upon the magnets · CPC title

• H02K1/246

  Variable reluctance rotors · CPC title

• H02K21/125

  having an annular armature coil (H02K21/14 - H02K21/24 take precedence) · CPC title

• H02K19/24 Primary

  with variable-reluctance soft-iron rotors without winding · CPC title