EP1482604B1 - Slip ring element and process of fabrication - Google Patents

Slip ring element and process of fabrication Download PDF

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Publication number
EP1482604B1
EP1482604B1 EP04004104A EP04004104A EP1482604B1 EP 1482604 B1 EP1482604 B1 EP 1482604B1 EP 04004104 A EP04004104 A EP 04004104A EP 04004104 A EP04004104 A EP 04004104A EP 1482604 B1 EP1482604 B1 EP 1482604B1
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EP
European Patent Office
Prior art keywords
contact rings
slip ring
ring element
contact
element according
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 - Lifetime
Application number
EP04004104A
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German (de)
French (fr)
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EP1482604A3 (en
EP1482604A2 (en
Inventor
Ludwig Angerpointner
Klaus Drost
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LTN Servotechnik GmbH
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LTN Servotechnik GmbH
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Publication date
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Publication of EP1482604A2 publication Critical patent/EP1482604A2/en
Publication of EP1482604A3 publication Critical patent/EP1482604A3/en
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Publication of EP1482604B1 publication Critical patent/EP1482604B1/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/10—Manufacture of slip-rings
    • 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
    • H01R39/08—Slip-rings

Definitions

  • the invention relates to a method for the production of slip ring elements according to claim 1.
  • the invention comprises, according to claim 5, such a slip ring element itself.
  • Slip ring units usually consist, inter alia, of two slip ring elements, namely a stator and a rotor.
  • the stator is often designed as a slip ring brush, whereas the rotor usually has a series of contact rings.
  • the slip ring brush then has sliding contact with the shell sides of the rotating contact rings.
  • Such slip ring units are used in many technical fields to transmit electrical signals or electrical power from a stationary to a rotating electrical unit. So that slip ring units can be produced with the smallest possible space or dimensions, there is a constant desire for a miniaturization of the corresponding slip ring elements.
  • the invention is therefore based on the object to provide a method for producing a slip ring element, which has a low production cost conditionally, and by which high-quality slip ring elements can be produced.
  • the invention provides a novel slip ring element whose structure is inexpensive, and by which the Quali In particular, the life or the reliability of slip ring elements is significantly increased. This is achieved by the slip ring elements according to claim 5.
  • the invention is based on the idea that contact rings of a slip ring element are already finally machined and / or coated on their shell sides before the slip ring elements are assembled or mounted.
  • the functionally relevant surfaces on the shell sides of the contact rings need not be further processed after a juxtaposition and bonding of the contact rings and after a removal of material of the contact rings in the region of their frontal contact.
  • the contact rings can be provided in the isolated state with a high-quality surface for the function of a slip ring unit.
  • This is relatively inexpensive and easily possible, compared to processes in which these surfaces of the contact rings must be created in the assembled state of the slip ring element.
  • the contact rings can be treated or coated with advantage in a bulk material, or drum process, while in conventional manufacturing processes, the entire slip ring element must be treated or coated. If the coating or machining process is faulty, there is the entire slip ring element as a committee to see. In the method according to the invention, however, individual faulty contact rings can be eliminated, so that the damage is very limited here.
  • the contact rings are applied to an inner body for juxtaposing.
  • a contact ring 1 is created, as shown in the FIG. 1 is shown.
  • the contact ring 1 has an axis Y which is orthogonal to an imaginary diameter line of the contact ring 1, and around which the contact ring 1 will rotate in later operation.
  • the contact ring 1 is made of a blank made of a copper-zinc-lead alloy, wherein the inner side I is limited by a central bore through the body of the contact ring 1.
  • the surface of the inside is machined with high precision according to the requirements of a fit.
  • the front side F is designed stepped by a turning process, so that webs 1.1 and the frontal faces F1 and F2 arise.
  • the partial surface F1 thus represents the end face of the web 1.1, while the partial surface F2 is the recessed end side of the contact ring.
  • the shell side A is the curved outer side of the contact ring 1.
  • a V-groove 1.2 was incorporated by performing a diamond turning process. When working on the shell side A, care was taken to ensure that it had an extremely high surface quality, in particular low roughness.
  • the thus processed contact rings 1 are then coated with an extremely thin gold layer.
  • the contact rings 1 are subjected to a very efficient and inexpensive bulk material coating process.
  • a high-quality surface of the contact ring 1 is thus created with relatively little effort in an early production phase, as it is very well suited for the function of a slip ring unit.
  • a later processing of the shell side A, z. B. after the assembly of the contact rings 1, is therefore no longer necessary.
  • the contact ring 1 has an outer diameter of only 6.3 mm, while the webs 1.1 have a width in the axial direction of 0.25 mm.
  • the contact rings 1 are arranged or aligned so that their axes Y point in each case in the same direction, namely in the direction of the central axis X of the slip ring element. In the example shown fall even after installation, the axes Y of the contact rings 1 congruent with the central axis X of the slip ring element together.
  • the inner body 2 has inter alia two longitudinal ribs 2.4, and on one side a centric hollow cylindrical pin 2.2 with an opening 2.7.
  • the longitudinal ribs 2.4 which run parallel to the central axis X, are connected in a subregion by a transverse web 2.3 in order to increase the mechanical rigidity of the inner body 2.
  • the longitudinal ribs 2.4 approximately each have a cross section in the form of a circle segment.
  • the contact rings 1 are pushed onto the longitudinal ribs 2.4.
  • the outer diameter of the circle segments is dimensioned according to the inner diameter of the contact rings 1, so that the contact rings 1 can be moved in the radial direction without play along the longitudinal ribs 2.4.
  • the contact rings 1 touch the inner body 2, or its longitudinal ribs 2.4 only at a portion of its inner side I.
  • the cables 7 are threaded through a hollow cylindrical opening 2.6 of the inner body 2.
  • the contact rings 1 are strung together in this manufacturing step S3 so that they touch the end faces in the region of the webs 1.1, and the surfaces F1 of the contact rings 1 are pushed touching each other.
  • the inner body 2 has a bearing seat 2.1, which comprises a shoulder 2.11 with two stop surfaces C, D.
  • This interior space is at least partially filled with an adhesive 5 in the production step S4.
  • the adhesive 5 is virtually injected through the opening 2.7 of the pin 2.2 in the interior.
  • the relatively viscous adhesive 5 flows through the opening 2.7 in the interior and moves there through the channels 2.5 to the insides I and to the front faces F2 of the contact rings 1 out.
  • the intermediate spaces which are located radially within the webs 1.1 of the contact rings 1, at least partially filled with the adhesive 5.
  • the volume the adhesive to be introduced 5 is dimensioned for this manufacturing step S4 so that the interior is on the one hand sufficiently filled with the adhesive 5, on the other hand, but no adhesive 5 exits at the opposite opening 2.6 of the slip ring element. After filling the interior with the adhesive 5, the adhesive 5 is allowed to harden, so that the successive contact rings 1 finally stick together. In this way, a slip ring element is provided, which after the manufacturing step S4 according to FIG. 3 is representable.
  • adhesive 5 are materials or potting compounds to understand that have an adhesive property. These may be single or multi-component adhesives.
  • the term adhesive also includes polymers which have the corresponding property.
  • the slip ring element as in the FIG. 3 is clamped in a lathe, so that the central axis X coincides with the axis of rotation of the lathe.
  • the stop surface D of paragraph 2.11 here has an important function, namely as a reference surface.
  • the inner body 2 together with the contact rings 1 and the adhesive 5 is pushed up to this paragraph 2.11 or to the stop surface D on the clamping device of the lathe. Through this stop, an exact assignment of the position of the contact rings 1 is possible in the lathe, which touch in the region of the ablated webs 1.1 frontally.
  • the slip ring element is removed from the lathe and the bearing 3, in this case a sealed ball bearing, is pushed onto the bearing seat 2.1 of the inner body 2 as far as the stop surface D of the shoulder 2.11.
  • the contact rings 1 are not axially loaded by pushing the bearing 3.
  • another bearing 4 is then mounted by sliding on the bearing seat 4.1 ( FIG. 4 ).
  • This slip ring element has a series of contact rings 1 whose axes Y point in the same direction and coincide congruently with the central axis X, respectively.
  • the contact rings 1 are glued together at their insides I and end faces F2, and have between the contact rings 1 along a circumferential line a circumferential recess 6, so that the contact rings 1 on both sides of the recess 6, or in the region of the recess 6, a have axial distance.
  • the recess 6, or the recess is thus in each case so deep that the contact rings 1 do not touch each other, or have no mutual electrical contact with one another, so that the adhesive 5 is visible in the recesses 6.
  • the slip ring element has, as already mentioned, an inner body 2 made of plastic.
  • This inner body 2 has a number of advantageous structural features.
  • the inner body 2 is designed so that it touches the contact rings 1 at a portion of its inner side I, and thus an accurate radial positioning of the contact rings 1 to the inner body 2 is achieved.
  • the longitudinal ribs 2.4 tuned to the inner diameter of the contact rings 1 are used to center the contact rings 1.
  • the hollow cylindrical pin 2.2 combines several beneficial functions in itself.
  • the inner body 2 in terms of easy and accurate introduction of the adhesive 5 in the interior, the is formed by the juxtaposed contact rings 1, optimized.
  • the centric hollow cylindrical opening 2.7 is provided, which is similar to a pipe socket, and serves as a starting point for an injection device for introducing the adhesive 5.
  • the adhesive can be distributed radially outward to the insides of the juxtaposed contact rings 1.
  • the outer circumference of the centric pin 2.2 also assumes the function of the mounting surface for the bearing seat 4.1.
  • the inner body 2 has the paragraph 2.11, which is designed such that it has both a stop surface D for the bearing 3, as well as a stop surface C for a contact ring 1.
  • the paragraph 2.11 is used during assembly as a stop for an outer contact ring 1, so that thereby a simple and precise assembly is possible.
  • the paragraph 2.11 also represents the stop for the bearing 3, so that even at this point a simple and accurate manufacturing process is made possible.
  • paragraph 2.11 has a third function, namely, it offers a stop surface for a clamping tool of the lathe, so that a reference surface for positioning of the machining tool is provided relative to the slip ring element.
  • the slip ring element described is used for example as a rotor in a slip ring unit. This rotor then rotates relative to a stator whose brush wires slide along the V-groove 1.2 of the contact rings 1. In this way, a permanent electrical contact between a respective brush wire and a contact ring 1 is made. Due to the excellent surface quality of the lateral surface A, in particular the V-groove 1.2, the slip ring units with the slip ring elements or rotors according to the invention have a high quality, which manifests itself in their reliability and service life. The production of the slip ring elements according to the invention is relatively inexpensive.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacturing Of Electrical Connectors (AREA)
  • Motor Or Generator Current Collectors (AREA)
  • Electroplating Methods And Accessories (AREA)
  • Turning (AREA)
  • Ceramic Products (AREA)
  • Manufacture Of Motors, Generators (AREA)

Abstract

Casing sides of contact rings (CR) (1) are processed/coated. Single CR are attached to each other so as to touch each other on the face side. An inner area formed by the attached CR is partly filled with an adhesive (5) so that the attached CR bond together after the adhesive hardens. An independent claim is also included for a slip ring element.

Description

Die Erfindung betrifft ein Verfahren zur Herstellung von Schleifringelementen gemäß dem Anspruch 1. Darüber hinaus umfasst die Erfindung, gemäß dem Anspruch 5, ein derartiges Schleifringelement selbst.The invention relates to a method for the production of slip ring elements according to claim 1. In addition, the invention comprises, according to claim 5, such a slip ring element itself.

Schleifringeinheiten bestehen üblicherweise unter anderem aus zwei Schleifringelementen, nämlich einem Stator und einem Rotor. Der Stator ist häufig als Schleifringbürste ausgestaltet, wogegen der Rotor meist eine Folge von Kontaktringen aufweist. Im Betrieb hat dann die Schleifringbürste gleitenden Kontakt zu den Mantelseiten der rotierenden Kontaktringe. Derartige Schleifringeinheiten werden in vielen technischen Gebieten eingesetzt, um elektrische Signale oder elektrische Leistung von einer ortsfesten auf eine sich drehende elektrische Einheit zu übertragen. Damit Schleifringeinheiten mit möglichst geringem Bauraum bzw. Abmessungen herstellbar sind, besteht permanent der Wunsch nach einer Miniaturisierung der entsprechenden Schleifringelemente.Slip ring units usually consist, inter alia, of two slip ring elements, namely a stator and a rotor. The stator is often designed as a slip ring brush, whereas the rotor usually has a series of contact rings. In operation, the slip ring brush then has sliding contact with the shell sides of the rotating contact rings. Such slip ring units are used in many technical fields to transmit electrical signals or electrical power from a stationary to a rotating electrical unit. So that slip ring units can be produced with the smallest possible space or dimensions, there is a constant desire for a miniaturization of the corresponding slip ring elements.

In der Offenlegungsschrift DE 1 926 219 ist unter anderem eine Methode zur Herstellung eines Schleifringrotors beschrieben, bei der die Kontaktringe aneinandergereiht und in eine, die Kontaktringe umgreifende Stützform gegeben werden. Danach wird der Innenraum dieses Stapels aus Kontaktringen mit einer Vergussmasse gefüllt. Nach dem Aushärten der Vergussmasse wird dann dieser Rohling an der gesamten Mantelseite abgedreht, bis die einzelnen Kontaktringe voneinander getrennt sind.In the Laid-Open Specification DE 1 926 219 Among other things, a method for producing a slip ring rotor is described, in which the contact rings are lined up and placed in a, the contact rings embracing support form. Thereafter, the interior of this stack of contact rings is filled with a potting compound. After curing of the potting this blank is then turned off on the entire shell side until the individual contact rings are separated.

Ein ähnliches Verfahren wird in der Offenlegungsschrift EP 0 618 648 A1 vorgeschlagen, wobei hier zur besseren Verteilung der Vergussmasse ein Schleudervorgang durchgeführt wird. Nach dem Vergießen und Aushärten wird auch hier die gesamte Mantelseite spanabhebend bearbeitet.A similar procedure is used in the Laid-open publication EP 0 618 648 A1 proposed, in which case for better distribution of the potting compound, a spinning process is performed. After casting and curing, the entire shell side is machined here as well.

Darüber hinaus sind Herstellungsverfahren für Schleifringelemente bekannt, bei denen Kontaktringe und isolierende Kunststoffringe alternierend aneinandergereiht werden. Bei einer derartigen Bauweise entstehen sehr viele Trennfugen, welche die Präzision der Kontaktringteilung negativ beeinflussen. Hinzu kommt, dass gerade bei Schleifringelementen mit sehr kleinen Abmessungen, wie sie immer mehr benötigt werden, diese Kunststoffringe wegen ihrer Kleinheit nur noch schwierig und aufwändig z. B. mittels Pinzetten zu handhaben sind.In addition, manufacturing methods for slip ring elements are known in which contact rings and insulating plastic rings are lined up alternately. In such a construction, very many joints, which negatively affect the precision of Kontaktringteilung arise. In addition, especially with slip ring elements with very small dimensions, as they are more and more needed, these plastic rings because of their small size only complicated and costly z. B. to be handled by tweezers.

Aus der US-Patentschrift 4871935 A ist ein Verfahren zur Herstellung eines Schleifringelements bekannt, bei dem die Kontaktringe konzentrisch mit radialem Abstand ohne axialen Versatz zueinander angeordnet sind. Der Abstand der Kontaktringe muss dort vor dem Vergießen mit einer maßgefertigten Gussform eingestellt werden, die nur für einen speziellen Typ des Schleifringelements verwendbar ist.From the US Pat. No. 4,871,935 A a method for producing a slip ring element is known in which the contact rings are arranged concentrically with radial distance without axial offset from each other. The distance of the contact rings must be adjusted there before casting with a custom-made mold, which is only suitable for a special type of slip ring element.

Die nach dem Stand der Technik bekannten Verfahren zur Herstellung von Schleifringelementen haben also unter anderem den Nachteil, dass sie vergleichsweise aufwändig und zeitraubend sind.The methods known from the prior art for the production of slip ring elements therefore have, inter alia, the disadvantage that they are comparatively complicated and time-consuming.

Der Erfindung liegt daher die Aufgabe zugrunde, ein Verfahren zur Herstellung eines Schleifringelements zu schaffen, welches einen geringen Herstellungsaufwand bedingt, und durch welches qualitativ hochwertige Schleifringelemente herstellbar sind.The invention is therefore based on the object to provide a method for producing a slip ring element, which has a low production cost conditionally, and by which high-quality slip ring elements can be produced.

Diese Aufgabe wird erfindungsgemäß durch die Merkmale des Anspruches 1 gelöst.This object is achieved by the features of claim 1.

Darüber hinaus wird durch die Erfindung eine neuartiges Schleifringelement geschaffen, dessen Aufbau kostengünstig ist, und durch welches die Quali insbesondere die Lebensdauer bzw. die Zuverlässigkeit von Schleifringelementen signifikant erhöht wird. Dies wird durch die Schleifringelemente gemäß dem Anspruch 5 gelöst.In addition, the invention provides a novel slip ring element whose structure is inexpensive, and by which the Quali In particular, the life or the reliability of slip ring elements is significantly increased. This is achieved by the slip ring elements according to claim 5.

Der Erfindung liegt der Gedanke zugrunde, dass Kontaktringe eines Schleifringelements an ihren Mantelseiten bereits endgültig bearbeitet und / oder beschichtet werden bevor die Schleifringelemente zusammengebaut bzw. montiert werden. Die funktionsrelevanten Oberflächen an den Mantelseiten der Kontaktringe brauchen nach einer Aneinanderreihung und Verklebung der Kontaktringe und nach einem Abtragen von Material der Kontaktringe im Bereich ihrer stirnseitigen Berührung nicht mehr weiter bearbeitet werden.The invention is based on the idea that contact rings of a slip ring element are already finally machined and / or coated on their shell sides before the slip ring elements are assembled or mounted. The functionally relevant surfaces on the shell sides of the contact rings need not be further processed after a juxtaposition and bonding of the contact rings and after a removal of material of the contact rings in the region of their frontal contact.

Auf diese Weise ist es möglich, dass die Kontaktringe im vereinzelten Zustand mit einer für die Funktion einer Schleifringeinheit qualitativ hochwertigen Oberfläche versehen werden können. Dies ist relativ kostengünstig und einfach möglich, verglichen mit Prozessen, bei denen diese Oberflächen der Kontaktringe im zusammengebauten Zustand des Schleifringelements geschaffen werden müssen. So können die Kontaktringe mit Vorteil in einem Schüttgut, bzw. Trommelverfahren behandelt bzw. beschichtet werden, während bei herkömmlichen Herstellungsprozessen das gesamte Schleifringelement behandelt bzw. beschichtet werden muss. Falls der Beschichtungsoder Bearbeitungsprozess fehlerhaft verläuft ist, ist dort das gesamte Schleifringelement als Ausschuss zu sehen. Im erfindungsgemäßen Verfahren können dagegen einzelne fehlerhafte Kontaktringe ausgesondert werden, so dass der Schaden hier sehr begrenzt ist.In this way, it is possible that the contact rings can be provided in the isolated state with a high-quality surface for the function of a slip ring unit. This is relatively inexpensive and easily possible, compared to processes in which these surfaces of the contact rings must be created in the assembled state of the slip ring element. Thus, the contact rings can be treated or coated with advantage in a bulk material, or drum process, while in conventional manufacturing processes, the entire slip ring element must be treated or coated. If the coating or machining process is faulty, there is the entire slip ring element as a committee to see. In the method according to the invention, however, individual faulty contact rings can be eliminated, so that the damage is very limited here.

In einer bevorzugten Ausgestaltung der Erfindung werden die Kontaktringe zum Aneinanderreihen auf einen Innenkörper aufgebracht.In a preferred embodiment of the invention, the contact rings are applied to an inner body for juxtaposing.

Vorteilhafte Ausbildungen der Erfindung entnimmt man den abhängigen Ansprüchen.Advantageous embodiments of the invention will remove the dependent claims.

Weitere Einzelheiten und Vorteile des erfindungsgemäßen Schleifringelements und des entsprechenden Verfahrens ergeben sich aus der nachfolgenden Beschreibung eines Ausführungsbeispieles anhand der beiliegenden Figuren.Further details and advantages of the slip ring element according to the invention and the corresponding method will become apparent from the following description of an embodiment with reference to the accompanying figures.

Es zeigen die

Figur 1
eine perspektivische Ansicht eines Kontaktrings nach dem ersten Herstellungsschritt S1,
Figur 2a
eine Seitenansicht eines Schleifringelements, während des Herstellungsschrittes S3
Figur 2b
einen Längsschnitt durch ein Schleifringelement, während des Herstellungsschrittes S3
Figur 3
einen Längsschnitt durch ein Schleifringelement, nach dem Herstellungsschritt S4,
Figur 4
einen Längsschnitt durch ein fertiggestelltes Schleifringelement,
It show the
FIG. 1
a perspective view of a contact ring after the first manufacturing step S1,
FIG. 2a
a side view of a slip ring element, during the manufacturing step S3
FIG. 2b
a longitudinal section through a slip ring element, during the manufacturing step S3
FIG. 3
a longitudinal section through a slip ring element, after the manufacturing step S4,
FIG. 4
a longitudinal section through a finished slip ring element,

In einem ersten Herstellungsschritt S1 wird ein Kontaktring 1 geschaffen, wie er in der Figur 1 dargestellt ist. Der Kontaktring 1 weist eine Achse Y auf, welche orthogonal zu einer gedachten Durchmesserlinie des Kontaktrings 1 steht, und um die sich im späteren Betrieb der Kontaktring 1 drehen wird.In a first manufacturing step S1, a contact ring 1 is created, as shown in the FIG. 1 is shown. The contact ring 1 has an axis Y which is orthogonal to an imaginary diameter line of the contact ring 1, and around which the contact ring 1 will rotate in later operation.

Der Kontaktring 1 ist aus einem Rohling aus einer Kupfer-Zink-Blei-Legierung gefertigt, wobei durch eine mittige Bohrung durch den Körper des Kontaktrings 1 die Innenseite I begrenzt wird. Die Oberfläche der Innenseite ist hochgenau gemäß den Anforderungen an eine Passung bearbeitet. Die Stirnseite F wird durch einen Drehprozess gestuft ausgestaltet, so dass Stege 1.1 und die stirnseitigen Teilflächen F1 und F2 entstehen. Die Teilfläche F1 stellt also quasi die Stirnseite des Steges 1.1 dar, während die Teilfläche F2 die zurückgesetzte Stirnseite des Kontaktrings ist. Die Mantelseite A ist die gekrümmte Außenseite des Kontaktrings 1. In die Mantelseite A wurde unter Durchführung eines Diamant-Drehprozesses eine V-Nut 1.2 eingearbeitet. Bei der Bearbeitung der Mantelseite A wurde darauf geachtet, dass diese eine überaus hohe Oberflächenqualität, insbesondere geringe Rauheit aufweist.The contact ring 1 is made of a blank made of a copper-zinc-lead alloy, wherein the inner side I is limited by a central bore through the body of the contact ring 1. The surface of the inside is machined with high precision according to the requirements of a fit. The front side F is designed stepped by a turning process, so that webs 1.1 and the frontal faces F1 and F2 arise. The partial surface F1 thus represents the end face of the web 1.1, while the partial surface F2 is the recessed end side of the contact ring. The shell side A is the curved outer side of the contact ring 1. In the shell side A, a V-groove 1.2 was incorporated by performing a diamond turning process. When working on the shell side A, care was taken to ensure that it had an extremely high surface quality, in particular low roughness.

Die derart bearbeiteten Kontaktringe 1 werden dann mit einer extrem dünnen Goldlage beschichtet. Zu diesem Zweck werden die Kontaktringe 1 einem überaus effizienten und kostengünstigen Schüttgut-Beschichtungsverfahren unterworfen. In dem Herstellungsschritt S1 wird somit mit vergleichsweise wenig Aufwand in einer frühen Herstellungsphase eine qualitativ hochwertige Oberfläche des Kontaktrings 1 geschaffen, wie sie für die Funktion einer Schleifringeinheit sehr gut geeignet ist. Eine spätere Bearbeitung der Mantelseite A, z. B. nach erfolgter Montage der Kontaktringe 1, ist daher nicht mehr notwendig.The thus processed contact rings 1 are then coated with an extremely thin gold layer. For this purpose, the contact rings 1 are subjected to a very efficient and inexpensive bulk material coating process. In the production step S1, a high-quality surface of the contact ring 1 is thus created with relatively little effort in an early production phase, as it is very well suited for the function of a slip ring unit. A later processing of the shell side A, z. B. after the assembly of the contact rings 1, is therefore no longer necessary.

Im gezeigten Beispiel weist der Kontaktring 1 einen Außendurchmesser von nur 6,3 mm auf, während die Stege 1.1 eine Breite in axialer Richtung von jeweils 0,25 mm haben.In the example shown, the contact ring 1 has an outer diameter of only 6.3 mm, while the webs 1.1 have a width in the axial direction of 0.25 mm.

Im nächsten Herstellungsschritt S2 wird jeweils ein Kabel 7 (siehe Figuren 2a, 2b) an jedem Kontaktring 1 an einer Stelle an der Innenseite I, also nicht an einem Steg 1.1, mit Hilfe eines Schweißprozesses elektrisch kontaktiert.In the next production step S2, a cable 7 (see FIG FIGS. 2a, 2b ) on each contact ring 1 at a location on the inside I, so not on a web 1.1, electrically contacted by means of a welding process.

Danach werden die Kontaktringe 1 gemäß den Figuren 2a und 2b im Herstellungsschritt S3 auf einen Innenkörper 2 des Schleifringelements, der als spritzgegossenes Kunststoffteil ausgeführt ist, aufgebracht bzw. aufgeschoben. Die Kontaktringe 1 sind dabei so angeordnet bzw. ausgerichtet, dass deren Achsen Y in jeweils die gleiche Richtung weisen, nämlich in Richtung der Mittelachse X des Schleifringelements. Im gezeigten Beispiel fallen sogar nach erfolgter Montage die Achsen Y der Kontaktringe 1 deckungsgleich mit der Mittelachse X des Schleifringelements zusammen.Thereafter, the contact rings 1 according to the FIGS. 2a and 2b in the manufacturing step S3 applied to an inner body 2 of the slip ring element, which is designed as an injection-molded plastic part, or postponed. The contact rings 1 are arranged or aligned so that their axes Y point in each case in the same direction, namely in the direction of the central axis X of the slip ring element. In the example shown fall even after installation, the axes Y of the contact rings 1 congruent with the central axis X of the slip ring element together.

Der Innenkörper 2 weist unter anderem zwei Längsrippen 2.4, sowie an einer Seite einen zentrischen hohlzylindrischen Zapfen 2.2 mit einer Öffnung 2.7 auf. Die Längsrippen 2.4, die parallel zur Mittelachse X verlaufen, sind in einem Teilbereich durch einen Quersteg 2.3 zur Erhöhung der mechanischen Steifigkeit des Innenkörpers 2 verbunden. Gemäß der Figur 2a haben die Längsrippen 2.4 näherungsweise jeweils einen Querschnitt in Form eines Kreissegments. Im Zuge der Montage werden die Kontaktringe 1 auf die Längsrippen 2.4 aufgeschoben. Der Außendurchmesser der Kreissegmente ist entsprechend dem Innendurchmesser der Kontaktringe 1 dimensioniert, so dass die Kontaktringe 1 in Radialrichtung spielfrei entlang der Längsrippen 2.4 verschoben werden können. Dabei berühren die Kontaktringe 1 den Innenkörper 2, bzw. dessen Längsrippen 2.4 nur an einem Teilabschnitt ihrer Innenseite I.The inner body 2 has inter alia two longitudinal ribs 2.4, and on one side a centric hollow cylindrical pin 2.2 with an opening 2.7. The longitudinal ribs 2.4, which run parallel to the central axis X, are connected in a subregion by a transverse web 2.3 in order to increase the mechanical rigidity of the inner body 2. According to the FIG. 2a the longitudinal ribs 2.4 approximately each have a cross section in the form of a circle segment. In the course of assembly, the contact rings 1 are pushed onto the longitudinal ribs 2.4. The outer diameter of the circle segments is dimensioned according to the inner diameter of the contact rings 1, so that the contact rings 1 can be moved in the radial direction without play along the longitudinal ribs 2.4. The contact rings 1 touch the inner body 2, or its longitudinal ribs 2.4 only at a portion of its inner side I.

Vor oder während des Aufbringens der Kontaktringe 1 auf den Innenkörper 2 werden die Kabel 7 durch eine hohlzylindrische Öffnung 2.6 des Innenkörpers 2 gefädelt. Die Kontaktringe 1 werden in diesem Herstellungsschritt S3 so aneinandergereiht, dass sich diese im Bereich der Stege 1.1 stirnseitig berühren, bzw. die Oberflächen F1 der Kontaktringe 1 berührend aneinander geschoben werden. Der Innenkörper 2 weist einen Lagersitz 2.1 auf, welcher einen Absatz 2.11 mit zwei Anschlagflächen C, D umfasst. Durch diesen Absatz 2.11, insbesondere durch die Anschlagfläche C, wird eine axiale Sicherung der Kontaktringe 1 ermöglicht, so dass die Kontaktringe 1 beim Aneinanderreihen nur gegen die Anschlagfläche C dieses Absatzes 2.11 geschoben werden müssen, um eine gegenseitige stirnseitige Berührung aller Kontaktringe 1 zu erreichen. Dies erleichtert bzw. beschleunigt den Herstellungsprozess.Before or during the application of the contact rings 1 on the inner body 2, the cables 7 are threaded through a hollow cylindrical opening 2.6 of the inner body 2. The contact rings 1 are strung together in this manufacturing step S3 so that they touch the end faces in the region of the webs 1.1, and the surfaces F1 of the contact rings 1 are pushed touching each other. The inner body 2 has a bearing seat 2.1, which comprises a shoulder 2.11 with two stop surfaces C, D. By this paragraph 2.11, in particular by the stop surface C, an axial securing of the contact rings 1 is made possible so that the contact rings 1 when juxtaposing only against the stop surface C of this paragraph must be pushed 2.11 in order to achieve a mutual frontal contact all contact rings 1. This facilitates or accelerates the manufacturing process.

Nachdem nunmehr alle Kontaktringe 1 auf den Innenkörper 2 aufgebracht und entsprechend aneinandergereiht wurden, schließen die Kontaktringe 1 bzw. der Stapel aus Kontaktringen 1 einen hohlen Innenraum ein. Dieser Innenraum wird darüber hinaus durch Aufschieben eines als separates Kunststoffteil ausgestalten Lagersitzes 4.1, der einen Absatz 4.11 aufweist, auf den Zapfen 2.2 axial weiterhin abgeschlossen (Figur 3).Now that all contact rings 1 have been applied to the inner body 2 and strung together correspondingly, the contact rings 1 or the stack of contact rings 1 enclose a hollow interior. This interior space is further completed axially by pushing a designed as a separate plastic part bearing seat 4.1, which has a paragraph 4.11, on the pin 2.2 ( FIG. 3 ).

Dieser Innenraum wird im Herstellungsschritt S4 zumindest teilweise mit einem Kleber 5 ausgefüllt. Zu diesem Zweck wird der Kleber 5 durch die Öffnung 2.7 des Zapfens 2.2 in den Innenraum quasi injiziert. Der vergleichsweise zähflüssige Kleber 5 fließt durch die Öffnung 2.7 in den Innenraum und bewegt sich dort durch die Kanäle 2.5 zu den Innenseiten I und zu den stirnseitigen Teilflächen F2 der Kontaktringe 1 hin. Dabei werden auch die Zwischenräume, welche sich radial innerhalb der Stege 1.1 der Kontaktringe 1 befinden, mit dem Kleber 5 zumindest teilweise ausgefüllt. Das Volumen des einzubringenden Klebers 5 ist für diesen Herstellungsschritt S4 so bemessen, dass der Innenraum einerseits ausreichend mit dem Kleber 5 gefüllt wird, andererseits aber kein Kleber 5 an der gegenüberliegenden Öffnung 2.6 des Schleifringelements austritt. Nach dem Ausfüllen des Innenraumes mit dem Kleber 5 lässt man den Kleber 5 aushärten, so dass die aneinandergereihten Kontaktringe 1 schließlich miteinander verkleben. Auf diese Weise ist ein Schleifringelement geschaffen, welches nach dem Herstellungsschritt S4 entsprechend der Figur 3 darstellbar ist.This interior space is at least partially filled with an adhesive 5 in the production step S4. For this purpose, the adhesive 5 is virtually injected through the opening 2.7 of the pin 2.2 in the interior. The relatively viscous adhesive 5 flows through the opening 2.7 in the interior and moves there through the channels 2.5 to the insides I and to the front faces F2 of the contact rings 1 out. In this case, the intermediate spaces, which are located radially within the webs 1.1 of the contact rings 1, at least partially filled with the adhesive 5. The volume the adhesive to be introduced 5 is dimensioned for this manufacturing step S4 so that the interior is on the one hand sufficiently filled with the adhesive 5, on the other hand, but no adhesive 5 exits at the opposite opening 2.6 of the slip ring element. After filling the interior with the adhesive 5, the adhesive 5 is allowed to harden, so that the successive contact rings 1 finally stick together. In this way, a slip ring element is provided, which after the manufacturing step S4 according to FIG. 3 is representable.

Als Kleber 5 sind hier Materialien oder Vergussmassen zu verstehen, die eine klebende Eigenschaft haben. Dies können Ein- oder Mehrkomponentenkleber sein. Unter den Begriff Kleber fallen auch Polymere, welche die entsprechenden Eigenschaft aufweisen.As adhesive 5 here are materials or potting compounds to understand that have an adhesive property. These may be single or multi-component adhesives. The term adhesive also includes polymers which have the corresponding property.

Im nächsten Herstellungsschritt S5 werden die Stege 1.1 vollständig abgetragen. Dazu wird das Schleifringelement, wie es in der Figur 3 dargestellt ist, in eine Drehmaschine eingespannt, so dass die Mittelachse X mit der Rotationsachse der Drehmaschine zusammenfällt. Die Anschlagfläche D des Absatzes 2.11 hat hier eine wichtige Funktion, nämlich als Referenzfläche. Der Innenkörper 2 samt den Kontaktringen 1 und dem Kleber 5 wird bis zu diesem Absatz 2.11 bzw. bis zur Anschlagfläche D auf die Spannvorrichtung der Drehmaschine geschoben. Durch diesen Anschlag ist in der Drehmaschine eine exakte Zuordnung der Position der Kontaktringe 1 möglich, welche sich im Bereich der abzutragenden Stege 1.1 stirnseitig berühren. Nachdem also das Schleifringelement derart eingespannt wurde, lässt man im Zuge einer Drehbearbeitung im Bereich der Stege 1.1 ein Drehwerkzeug einstechen, welches die doppelte Breite der Stege 1.1 aufweist. Dadurch wird spanabhebend das Material der Kontaktringe 1 im Bereich ihrer stirnseitigen Berührung vollständig abgetragen, so dass entlang einer Umfangslinie eine umlaufende Ausnehmung 6 hergestellt wird und die Kontaktringe 1 vollständig voneinander getrennt, bzw. elektrisch isoliert sind. Die stehen gelassenen Mantelseiten A, insbesondere sie V-Nuten 1.2, der Kontaktringe 1 bleiben allerdings unbearbeitet und brauchen auch später nicht mehr bearbeitet werden.In the next production step S5, the webs 1.1 are completely removed. For this purpose, the slip ring element, as in the FIG. 3 is clamped in a lathe, so that the central axis X coincides with the axis of rotation of the lathe. The stop surface D of paragraph 2.11 here has an important function, namely as a reference surface. The inner body 2 together with the contact rings 1 and the adhesive 5 is pushed up to this paragraph 2.11 or to the stop surface D on the clamping device of the lathe. Through this stop, an exact assignment of the position of the contact rings 1 is possible in the lathe, which touch in the region of the ablated webs 1.1 frontally. Thus, after the slip ring element has been clamped in such a way, in the course of a turning operation in the area of the webs 1.1, a turning tool is pierced which has twice the width of the webs 1.1. As a result, the material of the contact rings 1 is removed completely in the region of its end-side contact, so that a circumferential recess 6 is produced along a circumferential line and the contact rings 1 are completely separated from each other or electrically insulated. The left lateral sides A, in particular they V-grooves 1.2, the contact rings 1, however, remain unprocessed and need not be edited later.

Nach dem Herstellungsschritt S5 wird das Schleifringelement aus der Drehmaschine entnommen und das Lager 3, hier ein abgedichtetes Kugellager, auf den Lagersitz 2.1 des Innenkörpers 2 bis zur Anschlagfläche D des Absatzes 2.11 geschoben. Durch die Verwendung des Absatzes 2.11 als Anschlagelement wird eine einfache und genaue Montage möglich, wobei die Kontaktringe 1 durch das Aufschieben des Lagers 3 axial nicht belastet werden. Auf der anderen Seite des Innenkörpers 2 wird danach ein weiteres Lager 4 durch Aufschieben auf den Lagersitz 4.1 montiert (Figur 4).After the production step S5, the slip ring element is removed from the lathe and the bearing 3, in this case a sealed ball bearing, is pushed onto the bearing seat 2.1 of the inner body 2 as far as the stop surface D of the shoulder 2.11. By using the paragraph 2.11 as a stop element a simple and accurate installation is possible, the contact rings 1 are not axially loaded by pushing the bearing 3. On the other side of the inner body 2, another bearing 4 is then mounted by sliding on the bearing seat 4.1 ( FIG. 4 ).

Durch das erfindungsgemäße Verfahren wird also ein neuartiges Schleifringelement geschaffen, welches auf kostengünstige Weise auch bei geringer Baugröße mit hervorragender Qualität herstellbar ist. Dieses Schleifringelement weist eine Folge von Kontaktringen 1 auf, deren Achsen Y in jeweils die gleiche Richtung weisen und mit der Mittelachse X deckungsgleich zusammenfallen. Die Kontaktringe 1 sind an ihren Innenseiten I und Stirnseiten F2 miteinander verklebt, und weisen zwischen den Kontaktringen 1 entlang einer Umfangslinie eine umlaufende Ausnehmung 6 auf, so dass die Kontaktringe 1 zu beiden Seiten der Ausnehmung 6, bzw. im Bereich der Ausnehmung 6, einen axialen Abstand aufweisen. Die Ausnehmung 6, bzw. der Einstich, ist also jeweils so tief, dass sich die Kontaktringe 1 nicht gegenseitig berühren, bzw. keinen gegenseitigen elektrischen Kontakt zueinander haben, so dass der Kleber 5 in den Ausnehmungen 6 sichtbar ist.Thus, a novel slip ring element is created by the method according to the invention, which can be produced in a cost effective manner even with a small size with excellent quality. This slip ring element has a series of contact rings 1 whose axes Y point in the same direction and coincide congruently with the central axis X, respectively. The contact rings 1 are glued together at their insides I and end faces F2, and have between the contact rings 1 along a circumferential line a circumferential recess 6, so that the contact rings 1 on both sides of the recess 6, or in the region of the recess 6, a have axial distance. The recess 6, or the recess, is thus in each case so deep that the contact rings 1 do not touch each other, or have no mutual electrical contact with one another, so that the adhesive 5 is visible in the recesses 6.

Das Schleifringelement weist, wie bereits erwähnt, einen Innenkörper 2 aus Kunststoff auf. Dieser Innenkörper 2 hat eine Reihe von vorteilhaften konstruktiven Merkmalen. Zunächst ist der Innenkörper 2 so ausgestaltet, dass dieser die Kontaktringe 1 an einem Teilabschnitt ihrer Innenseite I berührt, und somit eine genaue radiale Positionierung der Kontaktringe 1 zum Innenkörper 2 erreicht wird. Insbesondere dienen die auf den Innendurchmesser der Kontaktringe 1 passgenau abgestimmten Längsrippen 2.4 zur Zentrierung der Kontaktringe 1.The slip ring element has, as already mentioned, an inner body 2 made of plastic. This inner body 2 has a number of advantageous structural features. First, the inner body 2 is designed so that it touches the contact rings 1 at a portion of its inner side I, and thus an accurate radial positioning of the contact rings 1 to the inner body 2 is achieved. In particular, the longitudinal ribs 2.4 tuned to the inner diameter of the contact rings 1 are used to center the contact rings 1.

Darüber hinaus vereint der hohlzylindrische Zapfen 2.2 mehrere vorteilhafte Funktionen in sich. Zunächst ist dadurch der Innenkörper 2 hinsichtlich des einfachen und genauen Einbringens des Klebers 5 in den Innenraum, der durch die aneinandergereihten Kontaktringe 1 gebildet wird, optimiert. Zu diesem Zweck ist die zentrische hohlzylindrische Öffnung 2.7 vorgesehen, die einem Rohrstutzen ähnelt, und als Ansatz für eine Einspritzvorrichtung zum Einbringen des Klebers 5 dient. Durch die Öffnung 2.7 und den im Innenkörper 2 vorgesehenen Kanal 2.5 kann der Kleber sich radial nach außen zu den Innenseiten der aneinandergereihten Kontaktringe 1 verteilen. Ferner übernimmt der Außenumfang des zentrischen Zapfens 2.2 auch die Funktion der Montagefläche für den Lagersitz 4.1.In addition, the hollow cylindrical pin 2.2 combines several beneficial functions in itself. First, thereby the inner body 2 in terms of easy and accurate introduction of the adhesive 5 in the interior, the is formed by the juxtaposed contact rings 1, optimized. For this purpose, the centric hollow cylindrical opening 2.7 is provided, which is similar to a pipe socket, and serves as a starting point for an injection device for introducing the adhesive 5. Through the opening 2.7 and provided in the inner body 2 channel 2.5, the adhesive can be distributed radially outward to the insides of the juxtaposed contact rings 1. Furthermore, the outer circumference of the centric pin 2.2 also assumes the function of the mounting surface for the bearing seat 4.1.

Hinzu kommt, dass der Innenkörper 2 den Absatz 2.11 aufweist, welcher derart ausgebildet ist, dass dieser sowohl eine Anschlagfläche D für das Lager 3, als auch als eine Anschlagfläche C für einen Kontaktring 1 hat. Zunächst dient der Absatz 2.11 bei der Montage als Anschlag für einen äußeren Kontaktring 1, so dass dadurch ein einfacher und präziser Zusammenbau möglich ist. Darüber hinaus stellt der Absatz 2.11 auch den Anschlag für das Lager 3 dar, so dass auch an dieser Stelle ein einfacher und genauer Herstellungsprozess ermöglicht wird. Im Herstellungsprozess hat der Absatz 2.11 noch ein dritte Funktion, er bietet nämlich eine Anschlagfläche für ein Spannwerkzeug der Drehmaschine, so dass eine Referenzfläche zur Positionierung des Bearbeitungswerkzeuges relativ zum Schleifringelement geschaffen wird.In addition, the inner body 2 has the paragraph 2.11, which is designed such that it has both a stop surface D for the bearing 3, as well as a stop surface C for a contact ring 1. First, the paragraph 2.11 is used during assembly as a stop for an outer contact ring 1, so that thereby a simple and precise assembly is possible. In addition, the paragraph 2.11 also represents the stop for the bearing 3, so that even at this point a simple and accurate manufacturing process is made possible. In the manufacturing process of paragraph 2.11 has a third function, namely, it offers a stop surface for a clamping tool of the lathe, so that a reference surface for positioning of the machining tool is provided relative to the slip ring element.

Das beschriebene Schleifringelement wird beispielsweise als Rotor in einer Schleifringeinheit eingesetzt. Dieser Rotor dreht sich dann relativ zu einem Stator, dessen Bürstendrähte entlang der V-Nut 1.2 der Kontaktringe 1 gleiten. Auf diese Weise ist ein permanenter elektrischer Kontakt zwischen jeweils einem Bürstendraht und jeweils einem Kontaktring 1 hergestellt. Durch die hervorragende Oberflächenqualität der Mantelfläche A, insbesondere der V-Nut 1.2, haben die Schleifringeinheiten mit den erfindungsgemäßen Schleifringelementen bzw. Rotoren eine hohe Qualität, was sich in deren Zuverlässigkeit und Lebensdauer bemerkbar macht. Dabei ist die Herstellung der erfindungsgemäßen Schleifringelemente relativ günstig.The slip ring element described is used for example as a rotor in a slip ring unit. This rotor then rotates relative to a stator whose brush wires slide along the V-groove 1.2 of the contact rings 1. In this way, a permanent electrical contact between a respective brush wire and a contact ring 1 is made. Due to the excellent surface quality of the lateral surface A, in particular the V-groove 1.2, the slip ring units with the slip ring elements or rotors according to the invention have a high quality, which manifests itself in their reliability and service life. The production of the slip ring elements according to the invention is relatively inexpensive.

Claims (10)

  1. A method for producing a slip ring element with contact rings (1) comprising the following production steps:
    - coating the jacket sides (A) of the contact rings (1) (S1),
    - stringing together the individual contact rings (1) so that they touch one another on the face side (S3),
    - at least partially filling the inner space formed by the contact rings (1), which are strung together, with an adhesive (5) so that the contact rings (1), which are strung together, adhere to one another after the hardening of the adhesive (5) (S4),
    - completely removing material of the contact rings (1) in the area of their contact on the face side so that a revolving recess (6) is produced along a circumferential line (S5).
  2. The method for producing a slip ring element according to claim 1, wherein the contact rings (1) are applied to an inner body (2) of the slip ring element for the purpose of stringing together the individual contact rings (1).
  3. The method for producing a slip ring element according to claim 1 or 2, wherein, prior to stringing together the individual contact rings (1), cables (7) at the individual contact rings (1) are contacted, in particular by means of a welding process (S2).
  4. The method for producing a slip ring element according to claim 1, 2 or 3, wherein the jacket sides (A) of the contact rings (1) are coated in a tumble cage process.
  5. The method for producing a slip ring element according to one of the preceding claims, wherein, prior to the coating, a processing of the jacket sides (A) of the contact rings (1) is carried out in the form of a diamond rotating process.
  6. A slip ring element, which encompasses contact rings (1) and an inner body (2), which touches the contact rings (1) at the inner side (I) thereof, in particular only at a partial section of the inner side (I) thereof, wherein the contact rings (1) are arranged in such a manner that the axes (Y) thereof in each case point in the same direction and the contact rings (1) adhere to one another at the inner sides (I) and/or the front faces (F2) thereof and a revolving recess (6) being located between the contact rings (1), characterized in that the slip ring element encompasses a series of contact rings (1), which are coated prior to the assembly of the slip ring element and in that the contact rings (1) encompass an axial distance at both sides of the recess (6).
  7. The slip ring element according to claim 6,
    characterized in that the inner body (2) encompasses a centrical opening (2.7) for introducing an adhesive (5).
  8. The slip ring element according to one of claims 6 to 7, characterized in that the inner body (2) encompasses a bearing seat (2.1) for attaching a bearing (3).
  9. The slip ring element according to one of claims 6 to 8, characterized in that the inner body (2) encompasses a ledge (2.11), which comprises a stop surface (C) for one of the contact rings (1).
  10. The slip ring element according to one of claims 6 to 9, characterized in that the inner body (2) encompasses a ledge (2.11), which comprises a stop surface (D) for the bearing (3).
EP04004104A 2003-05-30 2004-02-24 Slip ring element and process of fabrication Expired - Lifetime EP1482604B1 (en)

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Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006002104A1 (en) * 2006-01-17 2007-07-19 Ltn Servotechnik Gmbh Slip ring brush and slip ring unit equipped with it
EP3305805A1 (en) 2007-05-11 2018-04-11 Altor BioScience Corporation Fusion molecules and il-15 variants
DE102008000489B3 (en) * 2007-11-20 2009-02-05 Schleifring Und Apparatebau Gmbh Method for machining of upper surface of slip ring, which is attached in equipment, involves attaching tool support at equipment with tool, in which slip ring is turned in relation to tool support
GB2479761A (en) * 2010-04-21 2011-10-26 Dyson Technology Ltd Influence machine power generator
US11053299B2 (en) 2010-09-21 2021-07-06 Immunity Bio, Inc. Superkine
KR102070098B1 (en) 2010-09-21 2020-01-28 알토 바이오사이언스 코포레이션 Multimeric il-15 soluble fusion molecules and methods of making and using same
DE102011105759A1 (en) * 2011-06-24 2012-12-27 Kolektor Group D.O.O. Dynamoelectric machine
CN102522856A (en) * 2011-12-28 2012-06-27 大连宜顺机电有限公司 Variable-pitch sliding ring
US8986017B2 (en) 2012-10-26 2015-03-24 Oasys Healthcare Corporation Rotatable electric coupling apparatus and method
JP5862542B2 (en) * 2012-10-30 2016-02-16 トヨタ自動車株式会社 Slip ring device
US9039423B2 (en) * 2012-11-01 2015-05-26 Hypertronics Corporation Rotary electrical interconnect device
WO2016004060A2 (en) 2014-06-30 2016-01-07 Altor Bioscience Corporation Il-15-based molecules and methods of use thereof
EP3082202A1 (en) * 2015-04-17 2016-10-19 Siemens Aktiengesellschaft Slip ring body comprising a rotor for an electrically excited rotational dynamo-electric machine
KR101735924B1 (en) * 2015-06-09 2017-05-15 주식회사 만도 Structure for slip ring and brush of Wound Rotor Synchronous Motor
WO2018075989A1 (en) 2016-10-21 2018-04-26 Altor Bioscience Corporation Multimeric il-15-based molecules
EP3316425A1 (en) 2016-10-25 2018-05-02 Schleifring GmbH Slip ring module
JP6887914B2 (en) * 2017-08-24 2021-06-16 日本電産コパル電子株式会社 Slip ring device
WO2019141351A1 (en) * 2018-01-16 2019-07-25 CSEM Centre Suisse d'Electronique et de Microtechnique SA - Recherche et Développement Method for manufacturing a 3d electromechanical component having at least one embedded electrical conductor
EP3683902B1 (en) 2019-01-17 2022-07-27 Schleifring GmbH Snap-in slipring module
CN110890680A (en) * 2019-11-28 2020-03-17 九江英智科技有限公司 Compact slip ring
CN114696174B (en) * 2020-12-31 2023-04-28 北京金风科创风电设备有限公司 Slip ring device, yaw system and wind generating set
CN113422271B (en) * 2021-07-28 2022-11-22 中国兵器装备集团上海电控研究所 Slip ring mandrel designed by three-dimensional circuit and manufacturing method thereof
CN113752466B (en) * 2021-09-18 2023-08-01 徐洪杰 Injection molding process for middle shaft of conductive slip ring

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2551030A (en) * 1949-05-11 1951-05-01 Cleveland Electric Motor Compa Slip ring assembly
DE1926219A1 (en) * 1969-05-22 1970-11-26 Teldix Gmbh Moulded slip ring assembly
US3636394A (en) * 1970-05-18 1972-01-18 Suhl Elektrogeraete Veb K Elastic contacts for carbon collector rings having insulating bodies in electric motors
US4871935A (en) * 1983-09-26 1989-10-03 The B.F. Goodrich Company Slip ring assembly and method of manufacture
US4705976A (en) * 1986-04-30 1987-11-10 National Machine Company, Inc. Slip ring assembly and method of manufacture
US4936070A (en) * 1989-02-22 1990-06-26 Michaud Robert E Roof covering panel
FR2703523B1 (en) * 1993-03-30 1995-06-09 Air Precision Sa METHOD FOR MANUFACTURING A ROTOR OF A ROTATING ELECTRICAL MANIFOLD.
KR0164062B1 (en) * 1995-05-20 1999-04-15 정몽원 A shaft for alternator
US6398354B1 (en) * 1999-06-30 2002-06-04 Lexmark International, Inc. Printhead apparatus and printer having separate filtration device and method for attaching said device

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EP1482604A3 (en) 2008-06-04
US20040242025A1 (en) 2004-12-02
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DE502004009992D1 (en) 2009-10-15
DE10324708A1 (en) 2004-12-16
EP1482604A2 (en) 2004-12-01

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