EP0090685B1 - Collecteur pour moteur électrique miniature - Google Patents

Collecteur pour moteur électrique miniature Download PDF

Info

Publication number
EP0090685B1
EP0090685B1 EP83400415A EP83400415A EP0090685B1 EP 0090685 B1 EP0090685 B1 EP 0090685B1 EP 83400415 A EP83400415 A EP 83400415A EP 83400415 A EP83400415 A EP 83400415A EP 0090685 B1 EP0090685 B1 EP 0090685B1
Authority
EP
European Patent Office
Prior art keywords
core
sectors
projections
terminal
sector
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.)
Expired
Application number
EP83400415A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0090685A1 (fr
Inventor
Marc Rampignon
Claude Chevance
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.)
Compagnie Industrielle de Mecanismes CIM
Original Assignee
Compagnie Industrielle de Mecanismes CIM
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 Compagnie Industrielle de Mecanismes CIM filed Critical Compagnie Industrielle de Mecanismes CIM
Publication of EP0090685A1 publication Critical patent/EP0090685A1/fr
Application granted granted Critical
Publication of EP0090685B1 publication Critical patent/EP0090685B1/fr
Expired legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R39/00—Rotary current collectors, distributors or interrupters
    • H01R39/02—Details for dynamo electric machines
    • H01R39/04—Commutators

Definitions

  • the present invention relates to a manifold for a miniature electric motor, of the type comprising: an insulating core intended to be mounted on the shaft of the motor rotor and having a cylindrical outer surface; several conductive sectors applied to this surface, each sector being provided at its rear end with a radially projecting terminal cut out in part of the width of the sector by defining at least one tab projecting axially with respect to the root of the terminal, this tab ensuring the circumferential positioning of the sector; and a sector retaining ring against the core.
  • a collector of the kind mentioned above is known for example from document GB-A-2,060,274.
  • the axial lugs of the conductive sectors are inserted into arcuate slots provided at the base of a collar which projects behind the collector. These very thin slots correspond to punches of the manufacturing mold of very small section and therefore fragile.
  • the shape of the core is too complex to allow the use of thermosetting plastics, whereas these materials would be highly desirable for ensuring the stability of the core when making the connections by simple insertion of the wires of the armature in sector terminal hooks then hot radial compression ("hot pressing").
  • the object of the invention is to provide a collector of the same type which is easier to produce.
  • the invention relates to a collector of the aforementioned type, characterized in that the tabs are inserted between circumferentially spaced reliefs projecting from the cylindrical surface of the core.
  • each relief can have a parallelepiped shape and each terminal ends in a hook-shaped part situated at the right of one of the reliefs.
  • the core comprises, behind the reliefs, a collar of lower height, continuous or discontinuous, behind which hooks claws of the retaining ring which pass between the reliefs.
  • the collector shown in Figs. 1 to 6 with an overall length of less than 1 cm, consists of five parts: a central core 1 intended to be force fitted onto an armature shaft (not shown) of an electric motor, three conductive sectors 2 (of which only one is shown in Fig. 1), and a hoop ring 3.
  • the core 1 comprises a cylindrical tubular body 4 made of insulating material, preferably of thermosetting plastic, at one end of which (rear end, that is to say facing towards the armature) radially project three circumferentially separated parallelepiped reliefs 5 , located at 120 ° from each other.
  • a small distance behind the reliefs 5 also projects a continuous flange 6 of significantly lower height delimited by two flat surfaces 7 and 8.
  • the front surface 7 is connected to the rear face of each relief 5 by a longitudinal strip 9 of same width as the latter and the same height as the collar 6, to facilitate demolding.
  • Each conductive sector 2 has a general shape in cylindrical sector extending over a little less than 120 ° and conjugate from the external surface of the body 4 of the core. From the rear end of the sector, in the central part and over about a third of its width, is cut a tongue, initially projecting axially, which is folded outwards at right angles, then towards the rear at a right angle, then forward at about 45 °, to form a connection terminal 10 which ends in a hook 11. On each side, the terminal 10 defines a tab 12 projecting axially, with respect to the radial part 13 of this terminal, up to a point situated slightly beyond the hook 11. The spacing of the parallel faces 14 opposite the two tabs 12 is equal to the width of the reliefs 5 (Fig. 6).
  • the retaining ring 3 is insulating and, like the core 1, it is preferably molded from a thermosetting plastic. It consists of a ring 15 of rectangular section on the rear face of which three longitinal claws 16 protrude.
  • each claw 16 extends parallel to the axis of the ring 15 the internal surface thereof; externally, it starts from the external surface of the ring 15 and converges gently towards its axis.
  • the claw has at its end a beak 17 which defines a radial attachment shoulder 18 and a rear ramp 19.
  • the circumferential width of the claws 16 is clearly less than the space separating the reliefs 5.
  • the sectors 2 are applied to the body 4 with a small mutual circumferential spacing (FIG. 6), the reliefs 5 being opposite the terminals 10, and they are moved towards the rear.
  • the reliefs 5 fit exactly between the pairs of associated lugs 12, and the radial parts 13 come to bear on the front face of these reliefs, while the hooks 11 rest on the radially outer flat surface of the reliefs 4.
  • the ring 3 is force-fitted onto the three sectors 2 until it abuts against the three radial parts 13 of the terminals.
  • the nozzles 17 slide over the sectors 2, pass between the reliefs 5, cross the collar 6 and snap behind it, their faces 18 coming to hang on the rear face 8 of the collar. This is made possible by the radial elasticity of the claws 16 and by the ramps 19 of the spouts 17.
  • the attachment of the spouts 17 guarantees that the ring 15 exerts a permanent axial thrust which applies the parts 13 of the terminals against the reliefs 5.
  • the height of the collar 6 is less than the thickness of the sectors 2; consequently, the claws 16 radially press the lugs 12 against the body 4 over the entire length of these lugs, each claw 16 overlapping two lugs 12 belonging to two adjacent sectors. This gives excellent positioning and excellent positive maintenance of sectors 2 in all directions regardless of the speed of rotation of the motor.
  • connection wires (not shown) are inserted into the hooks 11 and then the latter are pressed radially hot (“hot pressing"), these hooks find on the reliefs 5 a large support surface which does not does not deform when heated.
  • the ring 3, the annular part 15 of which is close to the heated zone, does not deform during this operation and therefore continues to play its holding role perfectly.
  • the collar 6 and the bands 9 can be replaced by three collar segments 6A inserted, in end view, between the reliefs 5. In fact, this does not change anything in the attachment of the claws 16 nor in the release conditions of the core 1.

Landscapes

  • Motor Or Generator Current Collectors (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)
  • Motor Or Generator Frames (AREA)
EP83400415A 1982-03-23 1983-03-01 Collecteur pour moteur électrique miniature Expired EP0090685B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8204898 1982-03-23
FR8204898A FR2524212A1 (fr) 1982-03-23 1982-03-23 Collecteur pour moteur electrique miniature

Publications (2)

Publication Number Publication Date
EP0090685A1 EP0090685A1 (fr) 1983-10-05
EP0090685B1 true EP0090685B1 (fr) 1986-06-11

Family

ID=9272278

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83400415A Expired EP0090685B1 (fr) 1982-03-23 1983-03-01 Collecteur pour moteur électrique miniature

Country Status (9)

Country Link
US (1) US4469972A (enrdf_load_stackoverflow)
EP (1) EP0090685B1 (enrdf_load_stackoverflow)
JP (1) JPS58172957A (enrdf_load_stackoverflow)
BR (1) BR8301458A (enrdf_load_stackoverflow)
CA (1) CA1192250A (enrdf_load_stackoverflow)
DE (1) DE3364006D1 (enrdf_load_stackoverflow)
ES (1) ES271199Y (enrdf_load_stackoverflow)
FR (1) FR2524212A1 (enrdf_load_stackoverflow)
MX (1) MX152013A (enrdf_load_stackoverflow)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3404466A1 (de) * 1984-02-08 1985-08-08 Ebm Elektrobau Mulfingen Gmbh & Co, 7119 Mulfingen Aussenlaeufermotor
US4591749A (en) * 1985-03-21 1986-05-27 Ex-Cell-O Corporation Permanent magnet rotor with interfit cage structure
JPH0713423Y2 (ja) * 1985-07-25 1995-03-29 マブチモ−タ−株式会社 小型モ−タ
GB2190249B (en) * 1986-05-08 1990-01-24 Johnson Electric Ind Mfg Assembled commutators
GB2202686B (en) * 1987-03-23 1991-08-14 Johnson Electric Ind Mfg An armature for an electric motor
DE68918958T2 (de) * 1988-01-19 1995-03-02 Johnson Electric Sa Zusammengesetzter Stromwender für einen Elektromotor.
GB2217922A (en) * 1988-04-20 1989-11-01 Johnson Electric Ind Mfg Commutator for an electric motor
GB2221580B (en) * 1988-08-04 1992-09-23 Johnson Electric Ind Mfg A two part commutator assembly for an electric motor
DE69205257T2 (de) * 1991-11-12 1996-04-11 Johnson Electric Sa Zusammengebauter Kommutator.
GB9208980D0 (en) * 1992-04-25 1992-06-10 Johnson Electric Sa An assembled commutator
PL348301A1 (en) * 1999-03-25 2002-05-20 Gen Electric Electric motor having snap connection assembly method
EP3683902B1 (en) * 2019-01-17 2022-07-27 Schleifring GmbH Snap-in slipring module

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE632330C (de) * 1935-03-23 1936-07-06 Siemens Schuckertwerke Akt Ges Isolation fuer Kollektoren von Gleichstromkleinmotoren
CA426089A (en) * 1942-10-06 1945-03-13 Canadian General Electric Company Electric commutator
US2639396A (en) * 1950-04-10 1953-05-19 N T Kyle Commutator, armature, and method of making the same
FR1228890A (fr) * 1959-03-13 1960-09-02 Defim Procédé d'aménagement de collecteurs pour machines électriques et collecteurs et machines en comportant application
JPS565269Y2 (enrdf_load_stackoverflow) * 1976-12-14 1981-02-04
JPS5918944B2 (ja) * 1978-06-12 1984-05-01 マブチモ−タ−株式会社 小型モ−タ
JPS5654874U (enrdf_load_stackoverflow) * 1979-10-04 1981-05-13
DE2949563C2 (de) * 1979-12-10 1987-02-19 Mabuchi Motor Co.,Ltd., Tokio/Tokyo Elektrischer Kleinmotor

Also Published As

Publication number Publication date
MX152013A (es) 1985-05-23
US4469972A (en) 1984-09-04
ES271199U (es) 1983-08-16
JPS58172957A (ja) 1983-10-11
BR8301458A (pt) 1983-11-29
EP0090685A1 (fr) 1983-10-05
CA1192250A (en) 1985-08-20
FR2524212B1 (enrdf_load_stackoverflow) 1984-05-25
ES271199Y (es) 1985-01-16
DE3364006D1 (en) 1986-07-17
FR2524212A1 (fr) 1983-09-30

Similar Documents

Publication Publication Date Title
EP0090685B1 (fr) Collecteur pour moteur électrique miniature
EP1028490B1 (fr) Raccord coaxial pour relier deux cartes de circuit imprimé
FR2717623A1 (fr) Connecteur pour câble coaxial.
FR2462974A1 (fr) Bloc de rasage pour rasoir electrique a tete tournante
FR2742590A1 (fr) Collecteur pour moteur electrique de pompe de carburant et son procede de fabrication
FR2710200A1 (fr) Collecteur rapporté pour alternateur notamment de véhicule automobile.
EP2924854B1 (fr) Capteur de température pour stator de machine électrique et machine électrique comportant un tel capteur
EP0450988A1 (fr) Connecteur pour cable coaxial
FR2744502A1 (fr) Joint de transmission homocinetique a billes
EP0500442B1 (fr) Ventilateur pour machines tournantes électriques, notamment pour alternateurs de véhicules automobiles
WO1987002196A1 (fr) Perfectionnements aux douilles de contact electrique
FR2591399A1 (fr) Rotor a poles a griffes pour un generateur electrique, tel que alternateur de vehicules automobiles
WO2017194850A1 (fr) Raccord a deconnexion par traction sur une bague
FR3073598B1 (fr) Raccord a deconnexion par traction sur une bague
FR2676871A1 (fr) Structure pour la fixation d'aimants permanents dans un moteur.
FR2911016A1 (fr) Ensemble cage de guidage et balai pour un porte-balais et machine electrique comportant un porte-balais avec un tel ensemble.
FR2715512A1 (fr) Connecteur pour câble coaxial.
EP3097634B1 (fr) Dispositif isolant pour collecteur de machine electrique, collecteur et alternateur correspondants
FR2498272A1 (fr) Collier de raccordement pour dispositif de fixation a baionnette
FR2944084A1 (fr) Dispositif et procede de raccordement par encliquetage pour circuit de transfert de fluide, et ce circuit l'incorporant
FR2530328A1 (fr) Echangeur de chaleur a tubes verrouilles au collecteur
FR2928042A1 (fr) Collecteur electrique, notamment pour alternateur.
FR2818823A1 (fr) Rotor de machine electrique tournante comportant un corps de bobine perfectionne et alternateur comportant un tel rotor
EP0380417B1 (fr) Connecteur électrique pour élément chauffant
FR2505961A1 (fr) Poulie a gorges multiples

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE GB IT SE

Designated state(s): DE GB IT SE

17P Request for examination filed

Effective date: 19840326

ITF It: translation for a ep patent filed
GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE GB IT SE

REF Corresponds to:

Ref document number: 3364006

Country of ref document: DE

Date of ref document: 19860717

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19910212

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19910226

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19910326

Year of fee payment: 9

ITTA It: last paid annual fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19920301

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19920302

GBPC Gb: european patent ceased through non-payment of renewal fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19921201

EUG Se: european patent has lapsed

Ref document number: 83400415.2

Effective date: 19921005