Title:
【発明の名称】変圧器兼用電動機または発電機
Document Type and Number:
Japanese Patent JP2978201
Kind Code:
B2
Abstract:
PURPOSE:To reduce weight and size of a total unit by using a magnetic material, which is used in an electric motor and a generator, partly in common as a magnetic core of a transformer, in the case of a robot or the like. CONSTITUTION:A four-pole brushless motor is constituted of a core back part 1 and a teeth part 2 of a stator and a rotor 3 or the like. The core back part 1 is used in common as a magnetic core of a single-phase transformer. A primary winding 4 and a secondary winding 5 of the transformer are wound on six parts of the core back part 1. The primary winding 4, in which six windings are connected in series, generates magnetic flux in the same direction along a circumferential direction of the core back part 1. Also the secondary winding is similarly formed and actuated. Armature windings 6, 7, 8 of an electric motor are driven in three-phase. A magnetic path as the transformer is a ring-shaped round of the core back part 1, and the magnetic path as the electric motor, being in three-phase operation, gives no influence on the transformer winding. Accordingly, both the transformer and the electric motor are actuated with almost no influence on each other.
Inventors:
KAIDO TSUTOMU
Application Number:
JP9634190A
Publication Date:
November 15, 1999
Filing Date:
April 13, 1990
Export Citation:
Assignee:
SHINNIPPON SEITETSU KK
International Classes:
H02K53/00; H02K7/00; (IPC1-7): H02K7/00
Domestic Patent References:
| JP50122621A | ||||
| JP577878U | ||||
| JP4329852Y2 |
Attorney, Agent or Firm:
Tomoyuki Yathata (1 outside)