Title:
ROTOR FOR PERMANENT-MAGNET MOTOR
Document Type and Number:
Japanese Patent JP3464604
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To reduce the size and weight of a motor or generator, by providing a rotor hub which is engaged with a plurality of electrode pieces arranged by adjusting angles and, at the same time, radially positions the electrode pieces at angles, and a plurality of permanent magnets arranged among electrode pieces.
SOLUTION: A set of rotor hub radially positioning surfaces 2 adjust the radial positions of the electrode pieces 3 of a rotor against a rotating shaft. The electrode pieces 3 are attached to a rotor hub 1 in a state where the pieces 3 are radially inserted into a hub core. The pieces 3 are fixed to the hub core by inserting two tapered keys 5 each composed of a plurality of members having a superimposed form in the axial direction from one end face or both end faces of a rotor assembly. When the keys 5 are driven into prescribed positions, the keys 5 act as wedges for making the accurate orientation of the electrode pieces 3 in connection with positioning surfaces 2 and 4. Therefore, the size and weight of a motor or generator can be reduced.
More Like This:
| JP2003088016 | ROTOR AND BRUSHLESS MOTOR |
Inventors:
Michael Jay Rubus
Application Number:
JP6861198A
Publication Date:
November 10, 2003
Filing Date:
March 18, 1998
Export Citation:
Assignee:
Electric Boat Corporation
International Classes:
H02K21/14; H02K1/08; H02K1/27; (IPC1-7): H02K1/27; H02K21/14
Domestic Patent References:
| JP5778356A | ||||
| JP711859U |
Other References:
【文献】米国特許4260921(US,A)
Attorney, Agent or Firm:
Seiji Yanagida (1 person outside)
Previous Patent: PARTS CONVEYING CONTROL SYSTEM
Next Patent: PAPER FEEDER AND SHEET PROCESSING DEVICE
Next Patent: PAPER FEEDER AND SHEET PROCESSING DEVICE