FR2360971A2 - Aimant segmentaire, procede pour sa fabrication et son utilisation - Google Patents
Aimant segmentaire, procede pour sa fabrication et son utilisationInfo
- Publication number
- FR2360971A2 FR2360971A2 FR7701928A FR7701928A FR2360971A2 FR 2360971 A2 FR2360971 A2 FR 2360971A2 FR 7701928 A FR7701928 A FR 7701928A FR 7701928 A FR7701928 A FR 7701928A FR 2360971 A2 FR2360971 A2 FR 2360971A2
- Authority
- FR
- France
- Prior art keywords
- magnet
- highest
- segment
- manufacture
- zones
- 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
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/02—Permanent magnets [PM]
- H01F7/0205—Magnetic circuits with PM in general
- H01F7/021—Construction of PM
-
- 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
- H02K23/02—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors characterised by arrangement for exciting
- H02K23/20—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors characterised by arrangement for exciting having additional brushes spaced intermediately of the main brushes on the commutator, e.g. cross-field machines, metadynes, amplidynes or other armature-reaction excited machines
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Dc Machiner (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
- Hard Magnetic Materials (AREA)
Abstract
a. Aimant anisotrope, en particulier aimant segmentaire pour machines électriques, en ferrites de baryum et/ou de strontium, aimant constitué de zones, ces différentes zones étant faites de matières ferritiques dont les propriétés magnétiques sont différentes, les matières ferritiques étant choisies telles que, dans l'arc du segment, on dispose celle qui possède la rémanence Br la plus élevée et, à au moins une des extrémités du segment, celle qui possède l'intensité de champ coercitif 1 Hc la plus élevée. b. Aimant caractérisé en ce que, dans la zone où la sollicitation à la démagnétisation est la plus élevée, il est constitué de ferrite hautement coercitive.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19762602650 DE2602650A1 (de) | 1976-01-24 | 1976-01-24 | Anisotroper magnet, insbesondere segmentmagnet |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2360971A2 true FR2360971A2 (fr) | 1978-03-03 |
FR2360971B2 FR2360971B2 (fr) | 1982-04-02 |
Family
ID=5968191
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7701928A Granted FR2360971A2 (fr) | 1976-01-24 | 1977-01-24 | Aimant segmentaire, procede pour sa fabrication et son utilisation |
Country Status (5)
Country | Link |
---|---|
US (1) | US4112320A (fr) |
DE (1) | DE2602650A1 (fr) |
FR (1) | FR2360971A2 (fr) |
GB (1) | GB1564847A (fr) |
IT (1) | IT1125751B (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0048966A1 (fr) * | 1980-09-29 | 1982-04-07 | Hitachi, Ltd. | Structure de pièce polaire pour moteur à courant continu |
EP0078012A1 (fr) * | 1981-10-21 | 1983-05-04 | Hitachi, Ltd. | Machine dynamo-électrique à courant continu du type à aimant permanent |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2843375A1 (de) * | 1978-10-05 | 1980-04-24 | Bosch Gmbh Robert | Permanentmagnet fuer elektrische maschinen, insbesondere kleinmotoren |
DE2845264A1 (de) * | 1978-10-18 | 1980-05-08 | Bosch Gmbh Robert | Elektrische maschine, insbesondere kleinmotor |
DE3103475A1 (de) * | 1981-02-03 | 1982-08-26 | Robert Bosch Gmbh, 7000 Stuttgart | Elektrische maschine, insbesondere kleinmotor |
JPS58204754A (ja) * | 1982-05-24 | 1983-11-29 | Nissan Motor Co Ltd | 交流発電機 |
JPS6014639U (ja) * | 1983-07-07 | 1985-01-31 | 三菱電機株式会社 | 磁石モ−タの固定子 |
JPH0757082B2 (ja) * | 1985-09-18 | 1995-06-14 | 株式会社日立製作所 | 永久磁石界磁型電動機 |
JPS62161569U (fr) * | 1986-04-04 | 1987-10-14 | ||
US4881988A (en) * | 1987-11-16 | 1989-11-21 | Rjf International Corporation | Novel flexible magnet for use in small dc motors |
JPH05284678A (ja) * | 1992-03-31 | 1993-10-29 | Mabuchi Motor Co Ltd | 小型モータ |
US5608279A (en) * | 1993-12-13 | 1997-03-04 | Murray; David E. | DC generator |
US6580237B2 (en) * | 2000-12-25 | 2003-06-17 | Asmo Co., Ltd | Direct-current motor and manufacturing method of the same |
US6864614B2 (en) * | 2003-05-16 | 2005-03-08 | David Murray | Permanent magnet electric generator |
US10700560B2 (en) * | 2016-09-16 | 2020-06-30 | Tdk Corporation | Sintered magnet |
JP7331356B2 (ja) * | 2018-12-14 | 2023-08-23 | Tdk株式会社 | 永久磁石および回転電機 |
JP2020096484A (ja) * | 2018-12-14 | 2020-06-18 | Tdk株式会社 | 永久磁石および回転電機 |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR755663A (fr) * | 1933-04-12 | 1933-11-28 | Edelstahlwerke Aktien Ges Deut | Aimant annulaire |
FR1167248A (fr) * | 1957-02-26 | 1958-11-21 | Csf | Perfectionnements aux aimants permanents |
GB886916A (en) * | 1958-10-28 | 1962-01-10 | Roe A V & Co Ltd | Improvements in or relating to magnetic circuits employing permanent magnets or electro magnets |
DE1439075A1 (de) * | 1961-05-05 | 1969-08-07 | Siemens Ag | Dauermagnet |
DE1941180A1 (de) * | 1968-08-16 | 1970-02-19 | Lucas Industries Ltd | Gleichstrom-Dynamo |
US3590293A (en) * | 1969-09-29 | 1971-06-29 | Gen Electric | Dynamoelectric machine having a stationary assembly of the permanent magnet type |
DE2122556A1 (de) * | 1971-05-07 | 1972-11-09 | Joseph Lucas (Industries) Ltd., Birmingham (Grossbritannien) | Elektrodynamische Maschine |
FR2191226A1 (fr) * | 1972-06-28 | 1974-02-01 | Baermann Max | |
FR2267649A1 (en) * | 1974-04-12 | 1975-11-07 | Orega Electro Mecanique | Permanent magnet electric machines - has pole pieces with parts having different remanence and coercive fields |
US3939371A (en) * | 1973-07-04 | 1976-02-17 | Hitachi, Ltd. | Rotary electric machine |
-
1976
- 1976-01-24 DE DE19762602650 patent/DE2602650A1/de active Granted
-
1977
- 1977-01-06 US US05/757,149 patent/US4112320A/en not_active Expired - Lifetime
- 1977-01-14 IT IT19302/77A patent/IT1125751B/it active
- 1977-01-21 GB GB2465/77A patent/GB1564847A/en not_active Expired
- 1977-01-24 FR FR7701928A patent/FR2360971A2/fr active Granted
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR755663A (fr) * | 1933-04-12 | 1933-11-28 | Edelstahlwerke Aktien Ges Deut | Aimant annulaire |
FR1167248A (fr) * | 1957-02-26 | 1958-11-21 | Csf | Perfectionnements aux aimants permanents |
GB886916A (en) * | 1958-10-28 | 1962-01-10 | Roe A V & Co Ltd | Improvements in or relating to magnetic circuits employing permanent magnets or electro magnets |
DE1439075A1 (de) * | 1961-05-05 | 1969-08-07 | Siemens Ag | Dauermagnet |
DE1941180A1 (de) * | 1968-08-16 | 1970-02-19 | Lucas Industries Ltd | Gleichstrom-Dynamo |
US3590293A (en) * | 1969-09-29 | 1971-06-29 | Gen Electric | Dynamoelectric machine having a stationary assembly of the permanent magnet type |
DE2122556A1 (de) * | 1971-05-07 | 1972-11-09 | Joseph Lucas (Industries) Ltd., Birmingham (Grossbritannien) | Elektrodynamische Maschine |
FR2191226A1 (fr) * | 1972-06-28 | 1974-02-01 | Baermann Max | |
US3939371A (en) * | 1973-07-04 | 1976-02-17 | Hitachi, Ltd. | Rotary electric machine |
FR2267649A1 (en) * | 1974-04-12 | 1975-11-07 | Orega Electro Mecanique | Permanent magnet electric machines - has pole pieces with parts having different remanence and coercive fields |
Non-Patent Citations (1)
Title |
---|
NV196/70 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0048966A1 (fr) * | 1980-09-29 | 1982-04-07 | Hitachi, Ltd. | Structure de pièce polaire pour moteur à courant continu |
EP0078012A1 (fr) * | 1981-10-21 | 1983-05-04 | Hitachi, Ltd. | Machine dynamo-électrique à courant continu du type à aimant permanent |
Also Published As
Publication number | Publication date |
---|---|
GB1564847A (en) | 1980-04-16 |
DE2602650A1 (de) | 1977-07-28 |
FR2360971B2 (fr) | 1982-04-02 |
IT1125751B (it) | 1986-05-14 |
DE2602650C2 (fr) | 1988-10-06 |
US4112320A (en) | 1978-09-05 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FR2360971A2 (fr) | Aimant segmentaire, procede pour sa fabrication et son utilisation | |
DE3280154D1 (de) | Magnetisches aufnahme- und wiedergabegeraet. | |
DE3650146D1 (de) | Magnetisches Wiedergabegerät. | |
DE69111826D1 (de) | Gleichstromwandler mit übertragerstromerfassung und vorgegebener einschaltdauer. | |
DE69420698D1 (de) | Halbrundes kopfförmiges kabelband mit geteilter zentrier-und führungsvorrichtung | |
DE69200130D1 (de) | Magnetisches Material. | |
IT8019639A0 (it) | Sistema di trattamento di segnali ad attenuatore elettronico a piu'vie ed a regolazioni memorizzate. | |
DE69219187T2 (de) | Informationswiedergabegerät mit verschiedenen Abtastungsmoden | |
DE69407584T2 (de) | In ihrem wirksamen durchmesser veränderbare riemenscheibe mit stabilisierungsvorrichtung für den treibring | |
IT8223352A0 (it) | Procedimento e dispositivo per sostituire continuamente bobine su stazioni di avvolgimento, ad una o piu' spire ed operanti in continuo, per materiale filiforme, specialmente per filo metallico. | |
DE3689605T2 (de) | Geräte mit optischen wellenleitern und mit niedrigen verlusten. | |
US873084A (en) | Telegraphone. | |
GB2112232B (en) | Switching apparatus for changing the absolute value and the permanent magnetization direction of ferromagnetic bodies, e.g. of permanent magnets | |
DE3381719D1 (de) | Magnetisches aufzeichnungs- und wiedergabegeraet. | |
FR2443158A1 (fr) | Emetteur magnetique et procede pour sa commande | |
ATE272889T1 (de) | Magnetische materialien | |
DE68913544D1 (de) | Weiches magnetisches stahlmaterial mit eisenbasis. | |
NO160750C (no) | Anordning for digital signalbehandling paa kontinuerlige bitstroemmer. | |
DE69205799T2 (de) | Magnetisches Aufzeichnungs- und Wiedergabegerät. | |
DE69233244D1 (de) | Magneto-optisches Aufzeichnungsgerät mit Gebrauch vom Magnetfeldmodulationsverfahren | |
DE3485196D1 (de) | Lese- und entwertungsgeraet fuer im voraus bezahlbare karten, insbesondere zum gebrauch von mit magnetischen karten bedienbaren oeffentlichen telefonapparaten. | |
NL193007B (nl) | Magnetische-bandinrichting. | |
DE68920542T2 (de) | Mit Polyamidimid isolierter Draht. | |
DE3687929D1 (de) | Mikrowellenvorrichtung mit duennschichtigem yttrium-eisen-granat. | |
DE69223256D1 (de) | Spulengatter mit zwirnvorrichtung |