FR2403675A1 - DC electric motor with permanent stator magnets - inducing current in coils carried on thin disc rotor - Google Patents

DC electric motor with permanent stator magnets - inducing current in coils carried on thin disc rotor

Info

Publication number
FR2403675A1
FR2403675A1 FR7727948A FR7727948A FR2403675A1 FR 2403675 A1 FR2403675 A1 FR 2403675A1 FR 7727948 A FR7727948 A FR 7727948A FR 7727948 A FR7727948 A FR 7727948A FR 2403675 A1 FR2403675 A1 FR 2403675A1
Authority
FR
France
Prior art keywords
electric motor
disc rotor
disc
thin disc
stator magnets
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
FR7727948A
Other languages
French (fr)
Other versions
FR2403675B1 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 by Individual filed Critical Individual
Priority to FR7727948A priority Critical patent/FR2403675A1/en
Publication of FR2403675A1 publication Critical patent/FR2403675A1/en
Application granted granted Critical
Publication of FR2403675B1 publication Critical patent/FR2403675B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K23/00—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors
    • H02K23/02—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors characterised by arrangement for exciting
    • H02K23/04—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors characterised by arrangement for exciting having permanent magnet excitation
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K23/00—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors
    • H02K23/54—Disc armature motors or generators
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K25/00—DC interrupter motors or generators

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)

Abstract

The direct current motor using permanent magnets uses a disc of thin material which turns between the poles of two pairs of permanent magnets. The space is as thin as manufacturing tolerances will allow. The two pole faces on the same side of the disc are of opposite polarity. A number of coils are mounted flat on the surface of the rotor disc. These are positioned around the disc so as to pass between the stator poles. They are not powered directly but by currents induced by the permanent magnets.
FR7727948A 1977-09-15 1977-09-15 DC electric motor with permanent stator magnets - inducing current in coils carried on thin disc rotor Granted FR2403675A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7727948A FR2403675A1 (en) 1977-09-15 1977-09-15 DC electric motor with permanent stator magnets - inducing current in coils carried on thin disc rotor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7727948A FR2403675A1 (en) 1977-09-15 1977-09-15 DC electric motor with permanent stator magnets - inducing current in coils carried on thin disc rotor

Publications (2)

Publication Number Publication Date
FR2403675A1 true FR2403675A1 (en) 1979-04-13
FR2403675B1 FR2403675B1 (en) 1982-06-11

Family

ID=9195447

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7727948A Granted FR2403675A1 (en) 1977-09-15 1977-09-15 DC electric motor with permanent stator magnets - inducing current in coils carried on thin disc rotor

Country Status (1)

Country Link
FR (1) FR2403675A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2639486A1 (en) * 1988-11-21 1990-05-25 Martire Roger Rotating machine with permanent magnets and magnetic flux looping
US5459362A (en) * 1994-05-19 1995-10-17 Seagate Technology, Inc. Small form factor actuator for improved functionality and linearity
US5519266A (en) * 1993-06-01 1996-05-21 Anorad Corporation High efficiency linear motor
US5659215A (en) * 1994-05-19 1997-08-19 Seagate Technology, Inc. Small form factor actuator for improved functionality and linearity

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2639486A1 (en) * 1988-11-21 1990-05-25 Martire Roger Rotating machine with permanent magnets and magnetic flux looping
US5519266A (en) * 1993-06-01 1996-05-21 Anorad Corporation High efficiency linear motor
US5459362A (en) * 1994-05-19 1995-10-17 Seagate Technology, Inc. Small form factor actuator for improved functionality and linearity
US5659215A (en) * 1994-05-19 1997-08-19 Seagate Technology, Inc. Small form factor actuator for improved functionality and linearity

Also Published As

Publication number Publication date
FR2403675B1 (en) 1982-06-11

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Legal Events

Date Code Title Description
ST Notification of lapse