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1. WO1995033298 - PERMANENT MAGNET ROTOR AND METHOD FOR PRODUCING THE SAME

Publication Number WO/1995/033298
Publication Date 07.12.1995
International Application No. PCT/JP1995/000633
International Filing Date 31.03.1995
IPC
H02K 1/27 2006.01
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
KDYNAMO-ELECTRIC MACHINES
1Details of the magnetic circuit
06characterised by the shape, form or construction
22Rotating parts of the magnetic circuit
27Rotor cores with permanent magnets
H02K 7/04 2006.01
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
KDYNAMO-ELECTRIC MACHINES
7Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
04Balancing means
H02K 15/03 2006.01
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
KDYNAMO-ELECTRIC MACHINES
15Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
02of stator or rotor bodies
03having permanent magnets
CPC
H02K 1/276
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
KDYNAMO-ELECTRIC MACHINES
1Details of the magnetic circuit
06characterised by the shape, form or construction
22Rotating parts of the magnetic circuit
27Rotor cores with permanent magnets
2706Inner rotor
272where the magnetisation axis of the magnets is radial or tangential
274consisting of a plurality of circumferentially positioned magnets
2753consisting of magnets or groups of magnets arranged with alternating polarity
276Magnets embedded in the magnetic core
H02K 15/03
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
KDYNAMO-ELECTRIC MACHINES
15Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
02of stator or rotor bodies
03having permanent magnets
H02K 7/04
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
KDYNAMO-ELECTRIC MACHINES
7Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
04Balancing means
Applicants
  • SEIKO EPSON CORPORATION [JP]/[JP] (AllExceptUS)
  • NAGATE, Takashi [JP]/[JP] (UsOnly)
  • UETAKE, Akihito [JP]/[JP] (UsOnly)
  • YAMAGISHI, Yoshihiko [JP]/[JP] (UsOnly)
Inventors
  • NAGATE, Takashi
  • UETAKE, Akihito
  • YAMAGISHI, Yoshihiko
Agents
  • MORI, Masazumi
Priority Data
6/12038801.06.1994JP
6/23322428.09.1994JP
6/25579120.10.1994JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) PERMANENT MAGNET ROTOR AND METHOD FOR PRODUCING THE SAME
(FR) ROTOR A AIMANT PERMANENT ET PROCEDE DE FABRICATION DE CELUI-CI
Abstract
(EN)
A permanent magnet rotor wherein a rotor yoke (2) of a rotor (1) is constituted by a number of laminated steel sheets (4, 14, 24, 34, 44) and has on its periphery 2n (n is a positive integer) magnetic poles (5) and wherein a slot (6) is provided substantially equidistantly from a rotating shaft hole (7) in a base portion of every or every other magnetic pole, and wherein a field permanent magnet (3) is inserted into the slot, and a method for producing the same permanent magnet rotor. The safety and reliability of the permanent magnet rotor is improved by providing a construction to prevent the field permanent magnet from falling off or applying a surface treatment onto the field permanent magnet. In addition, an improved production process can provide the simplification of the process and shortening of production time.
(FR)
L'invention concerne un rotor à aimant permanent dans lequel une culasse (2) d'un rotor est constituée d'un certain nombres de tôles d'acier laminées (4, 14, 24, 34, 44) et comporte à sa périphérie 2n (n étant un nombre entier positif) pôles magnétiques (5). Dans ce rotor, une encoche (6) est prévue de manière sensiblement équidistante d'un trou d'arbre rotatif (7) dans une partie de base de chaque pôle magnétique ou d'un pôle sur deux, encoche dans laquelle un électro-aimant inducteur permanent (3) est inséré. L'invention traite également d'un procédé de production de ce rotor à aimant permanent. La sécurité et la fiabilité de ce rotor sont améliorées par une structure permettant d'éviter la chute de l'électro-aimant inducteur permanent ou par l'application d'un traitement de surface à cet électro-aimant permanent. En outre, l'amélioration du processus de production peut permettre de simplifier le processus et de réduire le temps de production.
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