FR2840737A1 - Slip ring for electrical machine, is hollow cylinder with pin or single strand cable projecting from one annular end surface, parallel with axis of cylinder - Google Patents

Slip ring for electrical machine, is hollow cylinder with pin or single strand cable projecting from one annular end surface, parallel with axis of cylinder Download PDF

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Publication number
FR2840737A1
FR2840737A1 FR0306846A FR0306846A FR2840737A1 FR 2840737 A1 FR2840737 A1 FR 2840737A1 FR 0306846 A FR0306846 A FR 0306846A FR 0306846 A FR0306846 A FR 0306846A FR 2840737 A1 FR2840737 A1 FR 2840737A1
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FR
France
Prior art keywords
sliding ring
ring
conductive element
slip ring
cylinder
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
FR0306846A
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French (fr)
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FR2840737B1 (en
Inventor
Sezgin Acar
Stefan Lober
Paul Harris
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.)
SEG Automotive Germany GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of FR2840737A1 publication Critical patent/FR2840737A1/en
Application granted granted Critical
Publication of FR2840737B1 publication Critical patent/FR2840737B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H01R39/34—Connections of conductor to slip-ring

Abstract

The hollow cylindrical slip ring may be made of a conductive powder material which is compressed or sintered in a press. The slip ring emerging from the press is symmetrical about its axis of rotation (13). A conductive pin or wire (9) is then pushed into one annular end surface together with an adhesive substance which may set and glue the wire in place. The wire protrudes parallel with the axis of the cylindrical slip ring.

Description

des ailes de sertissage du fil electrique et est sortie avec le fil.wings for crimping the electric wire and came out with the wire.

Domaine de ['invention La pre sente invention concerne un pro cede de realisation d'une bague glissante pour l'alimentation en courant de machines electri ques notamment d'alternateurs, la bague glissante etant fabriquee en une s matiere composite comprimee par une operation de compression et renfor cee. L'invention concerne egalement un dispositif a bague glis sante pour l'alimentation en courant de machines electriques notamment d'alternateurs. o Etat de la technique Selon le document EP 0744793 A1, on connalt des bagues glissantes pour des machines electriques. Ces bagues vent realisees en une matiere composite frittee. L'etat de la technique evoque dans ce do cument pose le probleme de la liaison entre la bague glissante et les con ts ducteurs en aval d'une maniere non soudee. Selon les liaisons par soudure connues d'apres le document DE 3838436 A1, ce procede ne peut s'appliquer a une matiere frittee qu'en mettant en ceuvre des moyens con siderables. Expose de ['invention et avantages La presente invention a pour but de remedier a ces incon venients et c once rne a cet effet un pro cede de fabrication du typ e defini c i dessus caracterise en ce quton combine par compression un element con  Field of the invention The present invention relates to a process for producing a sliding ring for the current supply of electrical machines, in particular alternators, the sliding ring being produced from a composite material compressed by an operation of compression and reinforcement. The invention also relates to a sliding ring device for supplying current to electrical machines, in particular alternators. o State of the art According to document EP 0744793 A1, slip rings are known for electric machines. These rings are made of a sintered composite material. The state of the art evoked in this document poses the problem of the connection between the sliding ring and the con ducts downstream in an unwelded manner. According to the weld connections known from document DE 3838436 A1, this process can only be applied to a sintered material by using solid means. Explanation of the invention and advantages The aim of the present invention is to remedy these drawbacks and to this end it is a manufacturing process of the type defined above, characterized in that it combines by compression an element con

ducteur pendant ['operation de compression.  conductor during the compression operation.

Le procede selon ['invention a l'avantage qu'en combinant par compression un element conducteur pendant ['operation de compres sion de la bague glissante, on realise une liaison gable entre ['element  The method according to the invention has the advantage that by compressing a conductive element during the compression operation of the sliding ring, a gable connection is made between the element

conducteur et la bague glissante.conductor and the sliding ring.

I1 est particulierement avantageux de realiser le procede avec un element conducteur qui un fil ou un rail de courant par exemple o une piece en tole. Les surfaces de ['element conducteur vent lisses et per  I1 is particularly advantageous to carry out the process with a conductive element which a wire or a current rail for example o a sheet metal part. The surfaces of the conductive element are smooth and per

mettent ainsi une liaison electrique en grande surface.  thus put an electrical connection in large area.

Si le rail electrique est entoure par de la matiere composite a l'interieur du volume de remplissage de la bague glissante, on aura une  If the electrical rail is surrounded by composite material inside the filling volume of the sliding ring, there will be a

excellente tenue entre le rail electrique et la matiere composite.  excellent resistance between the electric rail and the composite material.

3s Si le rail electrique est prevu contre le cote interieur de la bague glissante pour qutune partie du rail electrique forme la surface de la bague glissante tournee radialement vers l'interieur, ainsi par un simple engagement de la bague glissante avec le rail electrique, on etablira le contact avec les elements conducteurs en aval. De plus, on peut facile ment realiser le contact par exemple avec un adhesif conducteur ou par soudage. Si le rail electrique ne couvre que partiellement la peripherie interieure de la bague, on economise la matiere du cote du rail electrique. Si le rail electrique est un anneau place a l'interieur de la bague glissante, on aura un support supplementaire pour la bague glis sante par le rail electrique; de la meme maniere, pour ['ensemble de la bague glissante ['angle suivant loquel cette bague est glissee sur le point  3s If the electric rail is provided against the inner side of the sliding ring so that part of the electric rail forms the surface of the sliding ring turned radially inwards, thus by a simple engagement of the sliding ring with the electric rail, we establish contact with downstream conductive elements. In addition, contact can easily be made, for example with a conductive adhesive or by welding. If the electrical rail only partially covers the inner periphery of the ring, material is saved on the side of the electrical rail. If the electric rail is a ring placed inside the sliding ring, there will be an additional support for the sliding ring by the electric rail; in the same way, for ['the set of the sliding ring [' angle along loquel this ring is slipped on the point

to de contact importe peu car on aura tonjours un contact fiable.  To contact matters little because we will always have reliable contact.

De plus, il est prevu un dispositif a bague glissante pour l'alimentation en courant de machines electriques qui comporte une bague  In addition, there is provided a sliding ring device for the current supply of electric machines which comprises a ring

glissante realisee au moins selon l'une des etapes du procede.  sliding carried out at least according to one of the stages of the process.

Selon un autre developpement, la bague glissante est reali s see avec une epaisseur de paroi irreguliere. D'une maniere tout a fait par ticuliere a l'endroit ou ['element conducteur est relic a la bague glissante ou est usine dans celle-ci, il est souhaitable de prevoir un renforcement pour des raisons de solidite ce qui se traduit par une epaisseur de paroi irreguliere. Le point de contact entre la matiere composite et ['element o conducteur peut etre decale plus loin radialement vers l'interieur de sorte que ['element conducteur peut passer sous une eventuelle seconde bague  According to another development, the sliding ring is made with an irregular wall thickness. In a very particular way at the place where the conductive element is connected to the sliding ring or is factory therein, it is desirable to provide a reinforcement for reasons of solidity which results in a irregular wall thickness. The point of contact between the composite material and the conductive element can be shifted further radially inwards so that the conductive element can pass under a possible second ring

de glissement sans risque de court-circuit.  slip without risk of short circuit.

On prevoit egalement une combinaison formee d'une pre miere et d 'au moins une autre bague glissante ayant deux sections s d'anneau qui vent plus epaisses a un point qu'a un autre endroit. Si les deux points les plus epais des bagues glissantes vent en regard dans la direction radiale, au moins l'un des elements conducteurs d'une bague glissante peut passer facilement sous l'autre bague glissante sans risquer  There is also a combination of a first and at least one other sliding ring having two ring sections which are thicker at one point than at another location. If the two thickest points of the sliding rings face in the radial direction, at least one of the conductive elements of a sliding ring can easily pass under the other sliding ring without risking

ulterieurement un court-circuit.later a short circuit.

Dessins La presente invention sera decrite ci-apres de maniere plus detaillee a ['aide d'un exemple du procede selon ['invention et de differents  Drawings The present invention will be described below in more detail with the aid of an example of the process according to the invention and various

exemples de realisation du dispositif a bague glissante.  exemplary embodiments of the sliding ring device.

- la figure 1 montre le procede selon ['invention, - les fgures 2-7 montrent differents exemples de realisation d'un dispo  - Figure 1 shows the method according to [the invention, - Figures 2-7 show different examples of embodiment of a dispo

sitif a bague glissante.sliding ring sitive.

Description du mode de realisation de ['invention  Description of the embodiment of the invention

Selon le procede de la figure 1, dans une premiere etape S1 on place un element conducteur dans un moule de presse et dans une se conde etape S2, apres remplissage du moule de presse on comprime ['element conducteur avec une matiere composite. La figure 2a montre une bague glissante 10 d'ou depasse ['element conducteur 9. L'element conducteur 9 de la figure 2a est cons  According to the method of FIG. 1, in a first step S1 a conductive element is placed in a press mold and in a second step S2, after filling the press mold, the conductive element is compressed with a composite material. Figure 2a shows a sliding ring 10 from or over the conductive element 9. The conductive element 9 of Figure 2a is cons

titue par un cable a un brie.titled by a cable to a brie.

Comme le montre la figure 2b, ['element conducteur 9  As shown in Figure 2b, the conductive element 9

0 s'etend dans la direction de l'axe de rotation 13 de la bague glissante 10.  0 extends in the direction of the axis of rotation 13 of the sliding ring 10.

De facon analogue, la figure 3a montre une bague glissante 10. L'element conducteur 9 est realise ici comme rail electrique 15. Le rail electrique 15 est une piece en tole. Pour que l'affaiblissement de la matiere dans la section de la bague glissante 10 soit aussi falble que possible, ['element conducteur 9 ou le rail electrique 15 est realise en forme de seg  Similarly, FIG. 3a shows a sliding ring 10. The conductive element 9 is produced here as an electric rail 15. The electric rail 15 is a sheet metal part. So that the weakening of the material in the section of the sliding ring 10 is as low as possible, the conductive element 9 or the electric rail 15 is produced in the form of a segment.

ment d'anneau de cercle engage dans la bague glissante 10.  ring ring engagement in the sliding ring 10.

La figure 4a montre la bague glissante 10 avec un element conducteur 9 egalement realise comme rail electrique 15. Cet element conducteur 9 presente egalement une forme de segment d'anneau de cer o cle et constitue avec la surface interieure cylindrique de la bague glissante une surface interieure commune. Dans le cas du dispositif a bague glissante, le contact avec les elements conducteurs en aval est realise par engagement de ccux-ci ou par collage conducteur. On peut egalement rea  FIG. 4a shows the sliding ring 10 with a conductive element 9 also produced as an electrical rail 15. This conductive element 9 also has the shape of a ring segment of a ring and constitutes with the cylindrical inner surface of the sliding ring a surface common interior. In the case of the sliding ring device, the contact with the downstream conductive elements is carried out by engagement of the latter or by conductive bonding. We can also rea

liser un contact par une liaison de matiere en soudant ou en brasant.  read a contact by a bond of material by welding or brazing.

:5 La figure 5 montre un autre exemple de realisation du dis positif a bague glissante fait a partir de l'exemple de realisation des figures 4a et 5b; la bague glissante 10 comporte un element conducteur 9 sous la  : 5 Figure 5 shows another embodiment of the positive dis sliding ring made from the embodiment of Figures 4a and 5b; the sliding ring 10 has a conductive element 9 under the

forme d'un cylindre annulaire.shaped like an annular cylinder.

Aux figures 6a et 6b on a represente comme autre exemple de realisation un element conducteur 9 sous la forme d'un cordon. Ce  In Figures 6a and 6b is shown as another embodiment of a conductive element 9 in the form of a cord. This

cordon depasse egalement de la bague glissante dans la direction axiale.  cord also protrudes from the sliding ring in the axial direction.

Selon un autre exemple de realisation correspondent a la fi gure 7, la bague glissante 10 possede une epaisseur de paroi (s), irregu liere. L'epaisseur de paroi de la bague glissante 10 est plus epaisse dans la :5 zone recevant ['element conducteur 9 dans la matiere composite de la ba gue glissante 10 que dans les autres zones. De plus, la bague glissante 10 presente un contour interieur avec une surface 16 fonctionnant comme  According to another exemplary embodiment correspond to FIG. 7, the sliding ring 10 has a thickness of wall (s), irregular. The wall thickness of the sliding ring 10 is thicker in the: 5 zone receiving the conductive element 9 in the composite material of the sliding bar 10 than in the other zones. In addition, the sliding ring 10 has an inner contour with a surface 16 functioning as

moyen de blocage de rotation.rotation blocking means.

La fgure 8 montre un dispositif a bague glissante, complet avec deux bagues glissantes 10. La bague glissante 10 representee a droite a la figure 8 presente au niveau de son cote superieur, ['augmentation d'epaisseur deja evoquee ou l'epaisseur de paroi irreguliere s recevant ['element conducteur 9. Comme le point d'assemblage entre ['element conducteur 9 et la bague glissante 10 est decale radialement vers l'interieur, on peut facilement faire passer ['element conducteur 9 sous l'autre bague glissante 10. La bague glissante 10 a gauche a egale ment une epaisseur de paroi irreguliere mais pourrait egalement etre rem  Figure 8 shows a sliding ring device, complete with two sliding rings 10. The sliding ring 10 represented on the right in FIG. 8 is presented at its upper side, [already mentioned thickness increase or wall thickness irregular receiving the conductive element 9. As the connection point between the conductive element 9 and the sliding ring 10 is offset radially inwards, the conductive element 9 can easily be passed under the other sliding ring 10. The sliding ring 10 on the left also has an irregular wall thickness but could also be replaced

o placee par une bague glissante 10 ayant une epaisseur de paroi reguliere.  o placed by a sliding ring 10 having a regular wall thickness.

A la fgure 8 les points de la bague glissante 10 plus epaisse en section  At figure 8 the points of the sliding ring 10 thicker in section

dans la direction radiale se font face dans la direction radiale.  in the radial direction face each other in the radial direction.

Selon un autre exemple de realisation represente a la figure 9, ltelement conducteur 9 est relic a la bague glissante 10 par une sou is cure 18. En variante, on peut egalement coller ['element conducteur 9 d'une facon tres particuliere dans le mode de realisation comme rail elec trique 15 dans la bague glissante 10 avec une colle ou adhesif electrocon ducteur. Une autre possibilite consiste a relier ltelement conducteur o a la bague glissante par une liaison par vissage, rivetage ou liaison par la force par retrait en particulier dans le cas de bagues glissantes de plus  According to another exemplary embodiment represented in FIG. 9, the conductive element 9 is connected to the sliding ring 10 by a sou sou cure 18. As a variant, it is also possible to bond the conductive element 9 in a very particular way in the mode. of realization as an electric rail 15 in the sliding ring 10 with an adhesive or adhesive electroconductive. Another possibility consists in connecting the conductive element o to the sliding ring by a connection by screwing, riveting or bonding by force by withdrawal in particular in the case of sliding rings more

grandes dimensions.large dimensions.

Claims (7)

REVENDICATIONS 1 ) Procede de realisation d'une bague glissante (10) pour l'alimentation en courant de machines electriques notamment d'alternateurs, la bague glis sante (10) etant fabriquee en une matiere composite comprimee par une operation de compression et renforcee, caracterise en ce qu' on combine par compression un element conducteur (9) pendant  1) Method for producing a sliding ring (10) for the current supply of electric machines, in particular alternators, the health sliding ring (10) being made of a composite material compressed by a compression operation and reinforced, characterized in that a conductive element (9) is combined by compression ['operation de compression.['compression operation. 0 2 ) Procede selon la revendication 1, caracterise en ce que  0 2) Method according to claim 1, characterized in that ltelement conducteur (9) est un fil.  the conductive element (9) is a wire. 3 ) Procede selon la revendication 1, ., l5 caracterse en ce que  3) Method according to claim 1,., L5 caracterse in that ltelement conducteur (9) est un rail electrique (15).  the conductive element (9) is an electric rail (15). 4 ) Procede selon la revendication 3, caracterise en ce que o le rail electrique (15) est prevu sur le cote interieur de la bague glissante (10) . ) Procede selon la revendication 4, caracterise en ce que s le rail electrique (15) couvre au moins en partie une peripherie interieure  4) Method according to claim 3, characterized in that o the electric rail (15) is provided on the inner side of the sliding ring (10). ) Method according to claim 4, characterized in that s the electric rail (15) at least partially covers an inner periphery de la bague (10).of the ring (10). 6 ) Procede selon la revendication 5, .. caracterse en ce que  6) Method according to claim 5, .. characterized in that so le rail electrique ( 15) est un anneau.  so the electric rail (15) is a ring. 7 ) Dispositif a bague glissante pour l'alimentation en courant de machi nes electriques, notamment d'alternateurs, caracterise en ce qu' ss au moins une bague glissante (10) est fabriquee selon le procede de l'une  7) Device with sliding ring for the current supply of electrical machines, in particular alternators, characterized in that at least one sliding ring (10) is produced according to the method of one des revendications 1 a 6.of claims 1 to 6. 8 ) Dispositif selon la revendication 7, caracterise en ce qu'  8) Device according to claim 7, characterized in that au moins une bague glissante (10) a une epaisseur de paroi irreguliere.  at least one sliding ring (10) has an irregular wall thickness. 9 ) Dispositif selon la revendication 8, caracterise en ce que l'alimentation electrique est assuree par une autre bague glissante (10) ayant egalement une epais seur de paroi irreguliere et le s points le s plus  9) Device according to claim 8, characterized in that the electrical supply is provided by another sliding ring (10) also having an irregular wall thickness and the points the more epais des bagues glissantes (10) vent en regard dans la direction radiale.  thick sliding rings (10) wind opposite in the radial direction. o 10 ) Dispositif selon l'une quelconque des revendications 7 a 9,  o 10) Device according to any one of claims 7 to 9, caracterise en ce qu' au moins une bague glissante est bloquee en rotation par son contour in terieur.  characterized in that at least one sliding ring is prevented from rotating by its internal contour.
FR0306846A 2002-06-10 2003-06-06 METHOD FOR MANUFACTURING A SLIP RING AND SLIDING RING DEVICE Expired - Lifetime FR2840737B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2002125789 DE10225789A1 (en) 2002-06-10 2002-06-10 Process for producing a slip ring and slip ring device

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FR2840737A1 true FR2840737A1 (en) 2003-12-12
FR2840737B1 FR2840737B1 (en) 2008-09-05

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FR0306846A Expired - Lifetime FR2840737B1 (en) 2002-06-10 2003-06-06 METHOD FOR MANUFACTURING A SLIP RING AND SLIDING RING DEVICE

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5680616B2 (en) * 2012-12-04 2015-03-04 トヨタ自動車株式会社 Slip ring device
FR3101735B1 (en) 2019-10-03 2021-09-03 Avo Carbon France Rotary Collector for Rotary Electric Machine Rotor

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1340717A (en) * 1962-12-10 1963-10-18 Bosch Gmbh Robert Collector with insulating hub for an electric machine as well as the method for manufacturing said collector
JPS57166854A (en) * 1981-04-07 1982-10-14 Sugiyama Seisakusho:Kk Slip ring for electric machine
US4535264A (en) * 1982-05-06 1985-08-13 Lucas Industries Public Limited Company Slip ring assembly with inner recess to prevent shorting
JPH02136051A (en) * 1988-11-16 1990-05-24 Toyo Electric Mfg Co Ltd Commutator segment
US5789842A (en) * 1995-05-22 1998-08-04 Le Carbone Lorraine Alternator rings and cylindrical commutators made of a sintered copper-graphite composite material

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE911286C (en) * 1943-10-28 1954-05-13 Siemens-Schuckertwerke Ag Slip ring bodies intended for electrical machines and devices
JPS50488B1 (en) * 1970-05-15 1975-01-09
DE2202995B2 (en) * 1972-01-22 1975-09-18 Kautt & Bux Ohg, 7000 Stuttgart Collector-ring or slip-ring manufacturing method - involves using electromagnetic field to shrink ring onto cylindrical sleeve
FR2400986A1 (en) * 1977-08-26 1979-03-23 Motorola Automobile IMPROVEMENT OF THE ULTRASONIC WELDING PROCESS OF A METAL WIRE ON A METAL PART
US4209213A (en) * 1978-04-10 1980-06-24 Warner Electric Brake & Clutch Company Brush holder and slip ring assembly

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1340717A (en) * 1962-12-10 1963-10-18 Bosch Gmbh Robert Collector with insulating hub for an electric machine as well as the method for manufacturing said collector
JPS57166854A (en) * 1981-04-07 1982-10-14 Sugiyama Seisakusho:Kk Slip ring for electric machine
US4535264A (en) * 1982-05-06 1985-08-13 Lucas Industries Public Limited Company Slip ring assembly with inner recess to prevent shorting
JPH02136051A (en) * 1988-11-16 1990-05-24 Toyo Electric Mfg Co Ltd Commutator segment
US5789842A (en) * 1995-05-22 1998-08-04 Le Carbone Lorraine Alternator rings and cylindrical commutators made of a sintered copper-graphite composite material

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 007, no. 008 (E - 152) 13 January 1983 (1983-01-13) *
PATENT ABSTRACTS OF JAPAN vol. 014, no. 374 (E - 0964) 13 August 1990 (1990-08-13) *

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FR2840737B1 (en) 2008-09-05
DE10225789A1 (en) 2003-12-18

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