EP0068908A1 - Method for the mechanical and electrical connection of conductors to the collector of an armature of an electric machine - Google Patents

Method for the mechanical and electrical connection of conductors to the collector of an armature of an electric machine Download PDF

Info

Publication number
EP0068908A1
EP0068908A1 EP82400588A EP82400588A EP0068908A1 EP 0068908 A1 EP0068908 A1 EP 0068908A1 EP 82400588 A EP82400588 A EP 82400588A EP 82400588 A EP82400588 A EP 82400588A EP 0068908 A1 EP0068908 A1 EP 0068908A1
Authority
EP
European Patent Office
Prior art keywords
conductors
collector
notches
insulating body
electrode
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
EP82400588A
Other languages
German (de)
French (fr)
Other versions
EP0068908B1 (en
Inventor
Alain Roumanet
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.)
Ducellier et Cie
Original Assignee
Ducellier et Cie
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 Ducellier et Cie filed Critical Ducellier et Cie
Publication of EP0068908A1 publication Critical patent/EP0068908A1/en
Application granted granted Critical
Publication of EP0068908B1 publication Critical patent/EP0068908B1/en
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
    • H01R39/32—Connections of conductor to commutator segment

Definitions

  • the invention relates to a method for making the mechanical and electrical connection of conductors with the collector of an armature of an electric machine, collector comprising an insulating body, of molded material, in which are collector blades provided with notches in which are introduced conductors before the operation of connecting said conductors with the collector.
  • the Applicant has found that in the case of the use of such a method for connecting conductors with a collector whose insulating body has a large volume, relative to the collector blades, and whose notches for passage of conductors extend over the entire height of the notches of the collecting blades the mechanical pressure exerted by the entire contact surface of the electrode on the collecting blades and on the conductors causing the destruction of the quality of the anchoring of the collecting blades in the body insulating and that the fact of reducing this pressure, in order to avoid this destruction, led to an unsatisfactory level of quality of the connection.
  • the object of the present invention is to remedy this drawback and for this purpose relates to a method for producing a connection of conductors with an armature collector, connection obtained by mechanical pressure and by electric heating using a working electrode. , process in which the part of the electrode coming into contact with the conductors is shaped so as to have an angle ⁇ , relative to the longitudinal direction of the bottom of the notches, the top of the angle ⁇ being disposed on the side opposite to the insulating body .
  • This process has the advantage of avoiding the application of too great a pressure on the side where the collector blades are in contact with the insulating body and ensures the quality of the connection by applying the necessary pressure, to obtain this quality, in an area where the application of this pressure has no destructive effect on the anchoring of the collecting blades in the insulating body.
  • the collector according to FIGS. 1, 2 and 3 and according to a particular mode of application of the method of the invention is a collector of the frontal type, the collecting blades 1 of which are obtained by a stamping operation leaving ribs 2, thin, projecting between two consecutive blades, which ribs are removed during a subsequent operation to finish the armature.
  • the collector comprises an insulating body 3 (see fig. 1 and 2) made of thermosetting material, in which the collecting blades 1 are anchored by means of protrusions 4 obtained by raising the material of the collecting blades, using a cutting tool.
  • protuberances 4 provided in the central part of the collecting blades are embedded in the insulating body 3 during the operation of molding said body.
  • a metal hub 5 secures the manifold to the armature shaft (not shown).
  • This hub includes an anchoring means 6 also embedded in the insulating body 3 during the molding operation.
  • the insulating body 3 has at its periphery notches 7 (see fig. 1 and 2) for the passage of the conductors 8, which notches extend over the entire height of the notches 9 (see fig. 1 and 3) in which come house the conductors 8.
  • the notches 9 are obtained by a milling operation of the collecting blades 1, the bottom 10 of said notches being perforated. pendulum on the face 11 of the collecting blades (see fig. 1 and 2).
  • the connection of the stripped ends of the conductors 8 and of the collector is carried out using a working electrode 12 (see fig. 1,2 and 3) movable in translation, of which the part 13 coming into contact with the conductors 8 is shaped so as to have an angle ⁇ y relative to the longitudinal direction of the bottom 10 of the notches 9, the apex of the angle ⁇ being disposed on the side opposite to the insulating body 3.
  • a working electrode 12 see fig. 1,2 and 3
  • the electrode 12 is of trapezoidal section (see fig. 4) and is cut in Vee, in front view (see fig. 3).

Landscapes

  • Motor Or Generator Current Collectors (AREA)
  • Connection Of Batteries Or Terminals (AREA)

Abstract

1. A method for the mechanical and electrical connection of conductors to the commutator of an electric machine armature, which commutator comprises an insulating body (3) which is made from a moulded material and in which there are anchored by means of projections (4) commutator segments (1) provided with notches (9) into which the conductors (8) have previously been introduced, the connection being obtained by the application of pressure and electrical resistance heating by means of a work electrode (12), characterised in that an electrode (12) is used, of which a part (13) which comes into contact with the conductors (8) is formed so as to have an angle alpha with respect to the longitudinal direction of the base (10) of the notches, the apex of the angle alpha being disposed on the side opposite to the insulating body (3).

Description

L'invention concerne un procédé pour réaliser la liaison mécanique et électrique de conducteurs avec le collecteur d'un induit de machine électrique, collecteur comprenant un corps isolant, en matière moulée, dans lequel sont ancrées des lames collectrices munies d'encoches dans lesquelles sont introduits les conducteurs avant l'opération de liaison desdits conducteurs avec le collecteur.The invention relates to a method for making the mechanical and electrical connection of conductors with the collector of an armature of an electric machine, collector comprising an insulating body, of molded material, in which are collector blades provided with notches in which are introduced conductors before the operation of connecting said conductors with the collector.

On connaît déjà par le brevet français 1.369.388 un procédé dans lequel la liaison est obtenue par application d'une pression mécanique et par chauffage électrique à l'aide d'une électrode de travail dont la partie venant au contact des conducteurs à une inclinaison, par rapport à l'axe longitudinal du collecteur,sensiblement identique à l'inclinaison des conducteurs dans les encoches.Already known from French patent 1,369,388 a process in which the connection is obtained by application of mechanical pressure and by electric heating using a working electrode, the part of which comes into contact with the conductors at an inclination , relative to the longitudinal axis of the collector, substantially identical to the inclination of the conductors in the notches.

La demanderesse a constaté qu'en cas-d'emploi d'un tel procédé pour la liaison des conducteurs avec un collecteur dont le corps isolant présente un volume important, par rapport aux lames collectrices, et dont les échancrures de passage des conducteurs s'étendent sur toute la hauteur des encoches des lames collectrices la pression mécanique exercée par toute la surface, de contact, de l'électrode sur les lames collectrices et sur les conducteurs provoquait la destruction de la qualité de l'ancrage des lames collectrices dans le corps isolant et que le fait de diminuer cette pression, dans le but d'éviter cette destruction, conduisait à un niveau de qualité non satisfaisant de la liaison.The Applicant has found that in the case of the use of such a method for connecting conductors with a collector whose insulating body has a large volume, relative to the collector blades, and whose notches for passage of conductors extend over the entire height of the notches of the collecting blades the mechanical pressure exerted by the entire contact surface of the electrode on the collecting blades and on the conductors causing the destruction of the quality of the anchoring of the collecting blades in the body insulating and that the fact of reducing this pressure, in order to avoid this destruction, led to an unsatisfactory level of quality of the connection.

La présente invention a pour but de remédier à cet inconvénient et concerne à cet effet un procédé pour réaliser une liaison de conducteurs avec un collecteur d'induit, liaison obtenue par pression mécanique et par chauffage électrique à l'aide d'une électrode de travail, procédé dans lequel la partie de l'électrode venant au contact des conducteurs est conformée de manière à présenter un angle α, par rapport au sens longitudinal du fond des encoches, le sommet de l'angle α étant disposé du coté opposé au corps isolant.The object of the present invention is to remedy this drawback and for this purpose relates to a method for producing a connection of conductors with an armature collector, connection obtained by mechanical pressure and by electric heating using a working electrode. , process in which the part of the electrode coming into contact with the conductors is shaped so as to have an angle α, relative to the longitudinal direction of the bottom of the notches, the top of the angle α being disposed on the side opposite to the insulating body .

Ce procédé a pour avantage d'éviter l'application d'une pression trop importante du coté où les lames collectrices sont au contact du corps isolant et assure la qualité de la liaison par application de la pression nécessaire, à obtention de cette qualité, dans une zone où l'application de cette pression n'a pas d'effet destructeur sur l'ancrage des lames collectrices dans le corps isolant.This process has the advantage of avoiding the application of too great a pressure on the side where the collector blades are in contact with the insulating body and ensures the quality of the connection by applying the necessary pressure, to obtain this quality, in an area where the application of this pressure has no destructive effect on the anchoring of the collecting blades in the insulating body.

La description qui va suivre en regard des dessins annexés fera mieux comprendre comment l'invention peut être réalisée.The description which follows with reference to the appended drawings will make it easier to understand how the invention can be implemented.

  • La figure 1 est une vue longitudinale, en coupe partielle, d'un collecteur avec les extrémités des conducteurs introduites dans les encoches, l'électrode étant en position de non travail.Figure 1 is a longitudinal view, in partial section, of a collector with the ends of the conductors introduced into the notches, the electrode being in the non-working position.
  • La figure 2 est une vue du collecteur de la figure 1, l'électrode étant en position de travail.Figure 2 is a view of the collector of Figure 1, the electrode being in the working position.
  • La figure 3 est une vue de face partielle du collecteur des figures 1 et 2.FIG. 3 is a partial front view of the collector of FIGS. 1 and 2.
  • La figure 4 est une vue en coupe de l'électrode suivant la ligne AA de la figure 2.FIG. 4 is a sectional view of the electrode along the line AA in FIG. 2.

Le collecteur selon les figures 1, 2 et 3 et selon un mode d'application particulier du procédé de l'invention est un collecteur du type frontal, dont les lames collectrices 1, sont obtenues par une opération d'emboutissage laissant des nervures 2, de faible épaisseur, en saillie entre deux lames consécutives, lesquelles nervures sont supprimées au cours d'une opération ultérieure de finition de l'induit.The collector according to FIGS. 1, 2 and 3 and according to a particular mode of application of the method of the invention is a collector of the frontal type, the collecting blades 1 of which are obtained by a stamping operation leaving ribs 2, thin, projecting between two consecutive blades, which ribs are removed during a subsequent operation to finish the armature.

Le collecteur comprend un corps isolant 3 (voir fig. 1 et 2) en matière-thermodurcissable, dans lequel sont ancrées les lames collectrices 1 au moyen d'excroissances4 obtenues par relèvement de la matière des lames collectrices, à l'aide d'un outil coupant.The collector comprises an insulating body 3 (see fig. 1 and 2) made of thermosetting material, in which the collecting blades 1 are anchored by means of protrusions 4 obtained by raising the material of the collecting blades, using a cutting tool.

Ces excroissances 4 prévues dans la partie centrale des lames collectrices sont noyées dans le corps isolant 3 lors de l'opération de moulage dudit corps.These protuberances 4 provided in the central part of the collecting blades are embedded in the insulating body 3 during the operation of molding said body.

Un moyeu métallique 5 assure la fixation du collecteur sur l'arbre d'induit (non représenté).A metal hub 5 secures the manifold to the armature shaft (not shown).

Ce moyeu comporte un moyen d'ancrage 6 également noyé dans le corps isolant 3 lors de l'opération de moulage.This hub includes an anchoring means 6 also embedded in the insulating body 3 during the molding operation.

Le corps isolant 3 présente à sa périphérie des échancrures 7 (voir fig. 1 et 2) pour le passage des conducteurs 8, lesquelles échancrures s'étendent sur toute la hauteur des encoches 9 (voir fig. 1 et 3) dans lesquelles viennent se loger les conducteurs 8.The insulating body 3 has at its periphery notches 7 (see fig. 1 and 2) for the passage of the conductors 8, which notches extend over the entire height of the notches 9 (see fig. 1 and 3) in which come house the conductors 8.

Les encoches 9 sont obtenues par une opération de fraisage des lames collectrices 1, le fond 10 desdites encoches étant per- . pendiculaire à la face 11 des lames collectrices (voir fig. 1 et 2).The notches 9 are obtained by a milling operation of the collecting blades 1, the bottom 10 of said notches being perforated. pendulum on the face 11 of the collecting blades (see fig. 1 and 2).

Conformément au procédé de l'invention, la liaison des extrémités dénudées des conducteurs 8 et du collecteur est réalisée à l'aide d'une électrode de travail 12 (voir fig. 1,2 et 3) mobile en translation, dont la partie 13 venant au contact des conducteurs 8 est conformée de manière a présenter un angle α y par rapport au sens longitudinal du fond 10 des encoches 9, le sommet de l'angle α étant disposé du coté opposé au corps isolant 3.According to the method of the invention, the connection of the stripped ends of the conductors 8 and of the collector is carried out using a working electrode 12 (see fig. 1,2 and 3) movable in translation, of which the part 13 coming into contact with the conductors 8 is shaped so as to have an angle α y relative to the longitudinal direction of the bottom 10 of the notches 9, the apex of the angle α being disposed on the side opposite to the insulating body 3.

L'électrode 12 est de section trapézoïdale (voir fig. 4) et est taillée en Vé, en vue de face (voir fig. 3).The electrode 12 is of trapezoidal section (see fig. 4) and is cut in Vee, in front view (see fig. 3).

De façon connue, notamment par le brevet français 1.369.388, pour réaliser la liaison des conducteurs et du collecteur, on applique une pression mécanique, par l'intermédiaire de l'électrode 12 sur la partie des conducteurs 8 et des encoches9 au contact de la face 13 de l'électrode 12, électrode chauffée électriquement et dont le retour à la masse est assuré, de façon classique par une électrode 14 (voir fig.3) appliquée sur l'une des lames collectrices.In a known manner, in particular by French patent 1,369,388, to achieve the connection of the conductors and the collector, mechanical pressure is applied, by means of the electrode 12 on the part of the conductors 8 and of the notches 9 in contact with the face 13 of the electrode 12, an electrically heated electrode and the return to ground of which is ensured, in a conventional manner by an electrode 14 (see FIG. 3) applied to one of the collecting blades.

Claims (1)

1.- Procédé pour la liaison mécanique et électrique des conducteurs avec le collecteur d'un induit de machine électrique, collecteur comprenant un corps isolant (3) en matière moulée, dans lequel sont ancrées, au moyen d'excroissances (4), des lames collectrices (1) munies d'encoches (9) dans lesquelles sont préalablement introduits les conducteurs (8), la liaison étant obtenue par application d'une pression et chauffage électrique par résistance a l'aide d'une électrode de travail (12) caractérisé en ce que la partie (13) de l'électrode (12) venant au contact des conducteurs (8) est conformée de manière à présenter un angle α par rapport au sens longitudinal du fond (10) des encoches, le sommet de l'angle α étant disposé du coté opposé au corps isolant (3).1.- Method for the mechanical and electrical connection of the conductors with the collector of an armature of an electrical machine, collector comprising an insulating body (3) of molded material, in which are anchored, by means of protrusions (4) collecting blades (1) provided with notches (9) into which the conductors (8) are previously introduced, the connection being obtained by application of pressure and electrical heating by resistance using a working electrode (12 ) characterized in that the part (13) of the electrode (12) coming into contact with the conductors (8) is shaped so as to have an angle α relative to the longitudinal direction of the bottom (10) of the notches, the top of the angle α being disposed on the side opposite to the insulating body (3).
EP19820400588 1981-06-26 1982-03-31 Method for the mechanical and electrical connection of conductors to the collector of an armature of an electric machine Expired EP0068908B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8112581A FR2508730A1 (en) 1981-06-26 1981-06-26 METHOD FOR THE MECHANICAL AND ELECTRICAL CONNECTION OF CONDUCTORS WITH THE COLLECTOR OF AN ELECTRIC MACHINE ARMATURE
FR8112581 1981-06-26

Publications (2)

Publication Number Publication Date
EP0068908A1 true EP0068908A1 (en) 1983-01-05
EP0068908B1 EP0068908B1 (en) 1984-07-25

Family

ID=9259896

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19820400588 Expired EP0068908B1 (en) 1981-06-26 1982-03-31 Method for the mechanical and electrical connection of conductors to the collector of an armature of an electric machine

Country Status (4)

Country Link
EP (1) EP0068908B1 (en)
DE (1) DE3260438D1 (en)
ES (1) ES272084Y (en)
FR (1) FR2508730A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0994554A2 (en) * 1998-10-13 2000-04-19 Mitsuba Corporation Commutator and method of manufacturing the same
US10839999B2 (en) 2017-02-01 2020-11-17 Horton, Inc. Electromagnetic coil connection assembly

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1369388A (en) * 1963-05-10 1964-08-14 Ducellier & Cie Process for the electrical connection of the conductors of a rotor with its collector
US3593052A (en) * 1969-08-18 1971-07-13 Vernitron Corp Dynamoelectric machine commutator with coil end slats and method of making same

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2476795A (en) * 1945-08-01 1949-07-19 Avigdor Rifat Fastening of wires to commutators for electric motors

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1369388A (en) * 1963-05-10 1964-08-14 Ducellier & Cie Process for the electrical connection of the conductors of a rotor with its collector
US3593052A (en) * 1969-08-18 1971-07-13 Vernitron Corp Dynamoelectric machine commutator with coil end slats and method of making same

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0994554A2 (en) * 1998-10-13 2000-04-19 Mitsuba Corporation Commutator and method of manufacturing the same
EP0994554A3 (en) * 1998-10-13 2001-05-16 Mitsuba Corporation Commutator and method of manufacturing the same
US10839999B2 (en) 2017-02-01 2020-11-17 Horton, Inc. Electromagnetic coil connection assembly

Also Published As

Publication number Publication date
ES272084Y (en) 1984-12-01
ES272084U (en) 1983-10-16
EP0068908B1 (en) 1984-07-25
FR2508730B1 (en) 1983-12-16
DE3260438D1 (en) 1984-08-30
FR2508730A1 (en) 1982-12-31

Similar Documents

Publication Publication Date Title
EP0124937B1 (en) Brush and method for its manufacture
EP0068908B1 (en) Method for the mechanical and electrical connection of conductors to the collector of an armature of an electric machine
EP0193464B1 (en) Manufacturing process of a heatable window and silk screen printing form for carrying out this process
EP0358562A1 (en) Shielded connector housing
FR2497453A1 (en) SUCKER FOR DUST VACUUM CLEANER
FR2526382A1 (en) Windscreen-wiper esp. for cars - comprises pressure arm and blade-carrier which are both pivotally attached to reciprocating mounting
EP0420774B1 (en) Ski, method of manufacture of the ski and apparatus for implementation
EP0057633A1 (en) Insulation stripping electrical contact, process of manufacturing or this contact and connectors comprising this contact, particularly for flat cables
FR2553590A1 (en) CARBON BRUSH ASSEMBLY
FR2622512A3 (en) Writing implement, for example a fountain pen, with a hard plastic nib section having a non-slip profile
FR2484721A1 (en) BROOM HOLDER FOR ELECTRIC MACHINES, IN PARTICULAR FOR THREE-PHASE ALTERNATORS OF MOTOR VEHICLES
CH635279A5 (en) Windscreen wiper for motor vehicle
FR2725831A1 (en) Electric contact brush e.g. for programmed domestic appliance
FR2758659A1 (en) Interconnecting electrical bar method for fuse box
EP0625404A1 (en) Method of manufacturing a gear wheel for a control device for a windscreen wiper, and gear wheel thus obtained
FR2623024A1 (en) Insulation-displacement connector for an insulated electrical conductor
BE1004712A6 (en) Brushes processing machine.
FR2520926A3 (en) Push contact headlight or ignition switch for vehicles - converts rotary action to axial movement with lateral component producing frictional contact and clean electrical contact
FR2768978A1 (en) DRIVE DEVICE FOR A WINDSCREEN WIPER SYSTEM COMPRISING IMPROVED BALL JOINING MEANS
WO2000001043A1 (en) Method for making a contact element
FR2540026A1 (en) Device for shaping products made of lightweight material
BE1007370A7 (en) B.T. circuit breaker cartridge with high circuit-breaking power
FR2651718A2 (en) Method of installing an insert attached to a panel, or the like, which is preformed, a panel fitted with such an insert and device for the implementation of this method
EP0021891A1 (en) Face commutator for an electric machine, especially for automotive vehicles
FR2591352A1 (en) Apparatus for shaping one end of a plastic optical fibre and the corresponding implementation method

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

Designated state(s): DE GB IT

17P Request for examination filed

Effective date: 19821209

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

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Designated state(s): DE GB IT

REF Corresponds to:

Ref document number: 3260438

Country of ref document: DE

Date of ref document: 19840830

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
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: 19871201

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

Ref country code: GB

Effective date: 19881121