CH653520GA3 - - Google Patents

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Publication number
CH653520GA3
CH653520GA3 CH497583A CH497583A CH653520GA3 CH 653520G A3 CH653520G A3 CH 653520GA3 CH 497583 A CH497583 A CH 497583A CH 497583 A CH497583 A CH 497583A CH 653520G A3 CH653520G A3 CH 653520GA3
Authority
CH
Switzerland
Prior art keywords
orientation
powder
agglomeration
jacket
hollow
Prior art date
Application number
CH497583A
Other languages
French (fr)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to CH497583A priority Critical patent/CH653520GA3/fr
Priority to DE19843432012 priority patent/DE3432012A1/en
Priority to FR8413960A priority patent/FR2551931B1/en
Priority to JP59188974A priority patent/JPS6084951A/en
Publication of CH653520GA3 publication Critical patent/CH653520GA3/fr

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/0253—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing permanent magnets
    • H01F41/0273—Imparting anisotropy
    • H01F41/028—Radial anisotropy
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22—Rotating parts of the magnetic circuit
    • H02K1/27—Rotor cores with permanent magnets
    • H02K1/2706—Inner rotors
    • H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
    • H02K1/2726—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of a single magnet or two or more axially juxtaposed single magnets
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/34—Reciprocating, oscillating or vibrating parts of the magnetic circuit
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
    • H02K15/03—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies having permanent magnets

Abstract

The body 1 which consists of magnetic material and is formed from a powder which is solidified by agglomeration under pressure, is surrounded by a hollow jacket 2 and is permanently connected thereto. The agglomeration of the powder 1 and its solidification take place in the hollow jacket 2 itself, which is originally a solid part which can absorb the agglomeration pressures. The powder 1, which is located in this hollow part, is previously subjected to a magnetic field in order to give its particles a pre-orientation. In the case of circular rotors, the direction of the magnetic field is marked on the edge of the hollow part, as a result of which the final magnetisation is simplified, which must, of course, be precisely parallel to the direction of the pre-orientation. In the case of non-circular rotors, the shape of the rotor itself indicates what the direction of the pre-orientation and the magnetisation is. The solid hollow part is machined, for example by turning, in order to take on the final shape of the jacket 2. <IMAGE>
CH497583A 1983-09-12 1983-09-12 CH653520GA3 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CH497583A CH653520GA3 (en) 1983-09-12 1983-09-12
DE19843432012 DE3432012A1 (en) 1983-09-12 1984-08-31 Method for producing the rotor of a small motor, especially for clockmakers
FR8413960A FR2551931B1 (en) 1983-09-12 1984-09-07 PROCESS FOR MANUFACTURING A MICROMOTOR ROTOR, PARTICULARLY FOR WATCHMAKING
JP59188974A JPS6084951A (en) 1983-09-12 1984-09-11 Method of producing micromotor rotor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH497583A CH653520GA3 (en) 1983-09-12 1983-09-12

Publications (1)

Publication Number Publication Date
CH653520GA3 true CH653520GA3 (en) 1986-01-15

Family

ID=4285778

Family Applications (1)

Application Number Title Priority Date Filing Date
CH497583A CH653520GA3 (en) 1983-09-12 1983-09-12

Country Status (4)

Country Link
JP (1) JPS6084951A (en)
CH (1) CH653520GA3 (en)
DE (1) DE3432012A1 (en)
FR (1) FR2551931B1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4845837A (en) * 1986-10-06 1989-07-11 Emerson Electric Co. Method of making permanent magnet assembly
US4942322A (en) * 1988-05-27 1990-07-17 Allied-Signal Inc. Permanent magnet rotor with bonded sheath
FR2977409B1 (en) * 2011-06-29 2014-08-08 Faurecia Bloc Avant PROCESS FOR PRODUCING PERMANENT MAGNETS FOR AN ENGINE AND CORRESPONDING MOTOR

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR999112A (en) * 1952-01-25
FR1017121A (en) * 1950-05-05 1952-12-02 Rech S Des Applic Mecaniques E Lighting dynamos for cycles with agglomerated multipolar magnets
FR2033663A5 (en) * 1969-02-25 1970-12-04 Jammet Jean
DE1954796A1 (en) * 1969-10-31 1971-05-06 Deutsche Edelstahlwerke Ag Process for the production of a stator for permanently magnetically excited electric small and micro motors
DE2362760B1 (en) * 1973-12-17 1975-01-16 Siemens Ag, 1000 Berlin Und 8000 Muenchen High-speed brushless DC motor with a permanent magnet rotor
FR2234691A1 (en) * 1973-06-22 1975-01-17 Bendix Corp
JPS5625361A (en) * 1979-08-08 1981-03-11 Mitsubishi Electric Corp Manufacture of magnet rotor
JPS57138853A (en) * 1982-01-14 1982-08-27 Kokusan Denki Co Ltd Manufacture of flywheel magnet rotor

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR999112A (en) * 1952-01-25
FR1017121A (en) * 1950-05-05 1952-12-02 Rech S Des Applic Mecaniques E Lighting dynamos for cycles with agglomerated multipolar magnets
FR2033663A5 (en) * 1969-02-25 1970-12-04 Jammet Jean
DE1954796A1 (en) * 1969-10-31 1971-05-06 Deutsche Edelstahlwerke Ag Process for the production of a stator for permanently magnetically excited electric small and micro motors
FR2234691A1 (en) * 1973-06-22 1975-01-17 Bendix Corp
DE2362760B1 (en) * 1973-12-17 1975-01-16 Siemens Ag, 1000 Berlin Und 8000 Muenchen High-speed brushless DC motor with a permanent magnet rotor
JPS5625361A (en) * 1979-08-08 1981-03-11 Mitsubishi Electric Corp Manufacture of magnet rotor
JPS57138853A (en) * 1982-01-14 1982-08-27 Kokusan Denki Co Ltd Manufacture of flywheel magnet rotor

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENTS ABSTRACTS OF JAPAN, vol. 5, no. 78 (E-58) (750), 22 mai 1981 & JP - A - 56 25 361 (MITSUBISHI DENKI K.K.) (11-3-1981) *
PATENTS ABSTRACTS OF JAPAN, vol. 6, no. 238 (E-144) (1116), 26 novembre 1982 & JP - A - 57 138 853 (KOKUSAN DENKI K.K.) (27-8-1982) *

Also Published As

Publication number Publication date
DE3432012A1 (en) 1985-03-21
FR2551931A1 (en) 1985-03-15
JPS6084951A (en) 1985-05-14
FR2551931B1 (en) 1988-12-30

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