Rotating electrical motor using transverse magnetic flux

Patent metadata

Field	Value
Publication number	US-9787144-B2
Application number	US-201414328135-A
Country	US
Kind code	B2
Filing date	Jul 10, 2014
Priority date	Jul 10, 2013
Publication date	Oct 10, 2017
Grant date	Oct 10, 2017

Abstract

According to an embodiment, a rotating electrical machine includes a rotor and a stator. The rotor includes a first coil, first magnetic poles and second magnetic poles. The stator includes a second coil, third magnetic poles and fourth magnetic poles. One of a first magnetic pole and a second magnetic pole opposite to the first magnetic pole is formed such that a leading end of the one of the first magnetic pole and the second magnetic pole lies opposite a central portion of an opposite surface of the stator. One of a third magnetic pole and a fourth magnetic pole opposite to the third magnetic pole is formed such that a leading end of the one of the third magnetic pole and the fourth magnetic pole lies opposite a central portion of an opposite surface of the rotor.

First claim

What is claimed is:

1. A transverse magnetic flux rotating electrical machine comprising:
a rotor being rotatable about a rotating shaft; and
a stator provided opposite the rotor, the stator comprises a coil wound in a direction of rotation and a ferromagnetic substance provided around the coil,
wherein the rotor comprises an annular magnetic field generation part which generates a magnetic field, a plurality of first magnetic poles extending from an end of the magnetic field generation part toward the stator, and a plurality of second magnetic poles extending from another end of the magnetic field generation part, one of a first magnetic pole and a second magnetic pole opposite to the first magnetic pole has a leading end facing a central portion of an opposite surface of the stator which faces an opposite surface of the rotor, and the other of the first magnetic pole and the second magnetic pole has a leading end facing the stator, and
wherein the ferromagnetic substance comprises an annular portion, a plurality of third magnetic poles extending from an end of the annular portion toward the rotor, and a plurality of fourth magnetic poles extending from another end of the annular portion toward the rotor, one of a third magnetic pole and a fourth magnetic pole opposite to the third magnetic pole has a leading end facing a central portion of the opposite surface of the rotor, and the other of the third magnetic pole and the fourth magnetic pole has a leading end facing the rotor.

2. The machine according to claim 1 , further comprising:
a detection unit configured to detect an angle of rotation of the rotor around the rotating shaft to generate a detection signal;
a driving circuit unit configured to supply a current to the coil; and
a rotation controller configured to control the driving circuit unit based on the detection signal.

Assignees

• Toshiba Kk

Inventors

• Ueda Yasuhito

Classifications

• H02K1/243

  of the claw-pole type · CPC title

• H02K1/145 Primary

  having an annular coil, e.g. of the claw-pole type · CPC title

• H02K11/21

  Devices for sensing speed or position, or actuated thereby (specially adapted for machines having non-mechanical commutating devices H02K29/06, H02K29/14) · CPC title

• H02K19/10 Primary

  for multi-phase current · CPC title

• H02K2201/12

  Transversal flux machines · CPC title