EP1072070B1 - Assembly for transmitting electrical signals and/or energy - Google Patents
Assembly for transmitting electrical signals and/or energy Download PDFInfo
- Publication number
- EP1072070B1 EP1072070B1 EP98966595A EP98966595A EP1072070B1 EP 1072070 B1 EP1072070 B1 EP 1072070B1 EP 98966595 A EP98966595 A EP 98966595A EP 98966595 A EP98966595 A EP 98966595A EP 1072070 B1 EP1072070 B1 EP 1072070B1
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- European Patent Office
- Prior art keywords
- contact
- assembly according
- base material
- sliding
- embedded
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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
- H01R39/00—Rotary current collectors, distributors or interrupters
- H01R39/02—Details for dynamo electric machines
- H01R39/08—Slip-rings
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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
- H01R39/00—Rotary current collectors, distributors or interrupters
- H01R39/02—Details for dynamo electric machines
- H01R39/022—Details for dynamo electric machines characterised by the materials used, e.g. ceramics
- H01R39/025—Conductive materials
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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
- H01R39/00—Rotary current collectors, distributors or interrupters
- H01R39/02—Details for dynamo electric machines
- H01R39/18—Contacts for co-operation with commutator or slip-ring, e.g. contact brush
- H01R39/20—Contacts for co-operation with commutator or slip-ring, e.g. contact brush characterised by the material thereof
- H01R39/22—Contacts for co-operation with commutator or slip-ring, e.g. contact brush characterised by the material thereof incorporating lubricating or polishing ingredient
Definitions
- the invention relates to an arrangement for transmitting electrical Signals and / or energy between mutually movable Units using a sliding contact arrangement.
- sliding contacts For the transmission of electrical signals between mutually movable Units are preferred to use sliding contacts. These are also under the name grinding tracks in the case of a linear movement or slip rings in the case of a circular movement.
- Such mechanical contact systems are characterized by simplicity and high robustness. For a wide range of applications depend on the environmental conditions of the contact speed and the electrical signals different contact pairings to disposal. Is used at high speeds or high speeds in the case of slip rings a long service life required, contact pairs are used almost exclusively, where at least one partner is a combination of silver and Contains graphite. Here, the silver mainly acts as an intermediary good contact and the graphite for lubrication.
- a known method to solve this problem is to use it of massive brass sheets, which with a contact surface Silver.
- the silvering can here by mechanical Application of a silver layer or electrochemical treatment respectively.
- the disadvantage of such an arrangement is the relative thin silver plating. This can be done in a short time with heavy use Be worn out, the remaining brass track has again very poor transmission properties.
- the transmission properties of such sliding contacts will be usually characterized by a series of electrical parameters.
- the contact resistance is special important. This should be very low, preferably in the range of a few m ⁇ .
- contact noise is also important. On such noise occurs during the movement of the contacts through mechanical Vibrations, changing the contact point as well through small arcs between the two contact electrodes can burn on. For a good signal quality is a low one Contact noise is particularly important.
- the object of the invention is an arrangement for transmitting electrical Signals and / or energy between mutually movable Units by means of galvanic contacts and in particular a grinding Specify contact arrangement, on the one hand, a long service life and reliability, even at high contact speeds and on the other hand offers excellent signal transmission quality.
- this object is achieved in that the second Material is distributed in the base material such that another contact assures on the trajectory of the movement with the second material.
- the invention thus combines the advantages of two different ones Contact materials such as Steel, brass or copper and silver.
- Contact materials such as Steel, brass or copper and silver.
- the base material which is abrasion-resistant and inexpensive, as Carrier of the arrangement
- the second material which is good electrical Possesses properties as contact material.
- Design can be a particularly high transition quality achieve.
- the one consisting of a basic material with an embedded second material Contact can be made with a sliding track, for example a slip ring or be a contact brush.
- the second material can be dispersed in the surface of the base material his; alternatively or additionally, the base material can at least have a recess in which the second material is embedded.
- This recess can in particular be dovetail-shaped Be groove, because the form-fit makes a particularly good connection between the two materials.
- the recess at least in sections at an angle to the grinding direction and in particular wavy runs.
- the second material can be in the form of several islands, i.e. externally separate contact areas, or in the form of a path in the base material must be embedded.
- the second material can be in the form of several islands, i.e. externally separate contact areas, or in the form of a path in the base material must be embedded.
- the recess in your Course or in their shape perpendicular to the grinding direction varies in such a way that by touching the sliding contact connection traces of second material can be rubbed into the base material.
- the contacts becomes the smallest particles of the second material with the good electrical properties in the surface of the base material, i.e. rubbed into the solid contact track and remain stored in the surface as a highly conductive covering.
- the conductivity and in particular the contact noise as well as the Contact resistance of the entire arrangement has been significantly improved.
- second material selected so that it is softer than the base material This makes it particularly easy to get into the surface of this material be introduced.
- At least one contact element is included Game is stored perpendicular to a main grinding direction.
- the second contact material can better Spread over the contact sheet from the base material. This can be due to particularly simple way with a suspension or storage high tolerances that allow a stroke or a bearing play happen. Of course, this can also be done through targeted control the movement, following a given trajectory Management of the contacts.
- the web of the second material in one of the main trajectory of the assembly deviating shape This can be, for example spiral path.
- a brush preferably a conductive material and a contains lubricating material and a contact track made of a preferably well conductive material, no difference whether these components are exchanged, i.e. a brush from an electrical good conductive material on a contact track, which is a combination of a conductive and a lubricating material, e.g. Silver and
- graphite would contain the arrangement according to the invention for the brush, which is now two different conductive materials contains apply.
- Fig. 1 shows an arrangement according to the invention, consisting of a first contact partner, who on the one hand a basic material or a first material (1) with good mechanical properties and one small amount of a second material (2) with good electrical properties contains.
- the second material is for better mechanical fixation in a dovetail groove.
- a second contact partner (3) which consists for example of a brush can be made of silver and graphite.
- Silver and graphite or the career itself from such a material consists and a brush from the previously described contact partners is realized.
- Fig. 2 shows an arrangement consisting of a first contact material (1) and a web of a second contact material (2), which in this is wavy, so that there is a better distribution this contact material in the entire surface, especially the first material (1) results.
Description
Die Erfindung bezieht sich auf eine Anordnung zur Übertragung elektrischer Signale und/oder Energie zwischen gegeneinander beweglichen Einheiten mittels einer schleifenden Kontaktanordnung.The invention relates to an arrangement for transmitting electrical Signals and / or energy between mutually movable Units using a sliding contact arrangement.
Zur Übertragung elektrischer Signale zwischen gegeneinander beweglichen Einheiten werden bevorzugt Schleifkontakte eingesetzt. Diese sind auch unter dem Namen Schleifbahnen im Falle einer linearen Bewegung oder Schleifringe im Falle einer kreisförmigen Bewegung bekannt.For the transmission of electrical signals between mutually movable Units are preferred to use sliding contacts. These are also under the name grinding tracks in the case of a linear movement or slip rings in the case of a circular movement.
Derartige mechanische Kontaktsysteme zeichnen sich durch Einfachheit und hohe Robustheit aus. Für die unterschiedlichsten Einsatzgebiete stehen in Abhängigkeit von den Umgebungsbedingungen der Kontaktgeschwindigkeit sowie den elektrischen Signalen unterschiedliche Kontaktpaarungen zur Verfügung. Wird bei hohen Geschwindigkeiten bzw. hohen Drehzahlen im Falle von Schleifringen eine lange Lebensdauer gefordert, so kommen fast ausschließlich Kontaktpaarungen zum Einsatz, bei denen zumindest ein Partner eine Kombination aus Silber und Graphit enthält. Hierbei wirkt das Silber überwiegend als Vermittler eines guten Kontaktes und das Graphit zur Schmierung. Such mechanical contact systems are characterized by simplicity and high robustness. For a wide range of applications depend on the environmental conditions of the contact speed and the electrical signals different contact pairings to disposal. Is used at high speeds or high speeds in the case of slip rings a long service life required, contact pairs are used almost exclusively, where at least one partner is a combination of silver and Contains graphite. Here, the silver mainly acts as an intermediary good contact and the graphite for lubrication.
Wie Versuche gezeigt haben, läßt sich mit einer solchen Silber-Graphit-Bürste auf einer Vollsilberbahn eine hervorragende Signalqualität erreichen. Übergangswiderstände und auch Kontaktrauschen sind hier besonders langzeitstabil und niedrig. Nachteilig bei dieser Anordnung sind die hohen Kosten. Diese wirken sich besonders bei großen Schleifringen oder Schleifbahnanordnungen aus, da hier die Schleifbahnen aus massivem Silber gefertigt werden müssen. Wird aus Kostengründen auf ein preiswerteres Kontaktmaterial, wie Messing oder Kupfer zurückgegriffen, so werden dadurch die Übertragungseigenschaften wesentlich verschlechtert. Die Übergangswiderstände und das Kontaktrauschen können hier um bis zu zwei Größenordnungen schlechter als in der Silberanordnung sein.As experiments have shown, such a silver-graphite brush can be used achieve excellent signal quality on a full silver track. Contact resistances and contact noise are special here long-term stable and low. This arrangement is disadvantageous the high cost. These are particularly effective with large slip rings or slideway arrangements, since here the slideways solid silver must be made. Will be on for cost reasons a cheaper contact material, such as brass or copper, this makes the transmission properties essential deteriorated. The contact resistances and the contact noise can be up to two orders of magnitude worse than in the silver arrangement his.
Ein bekanntes Verfahren zur Lösung dieses Problems ist der Einsatz von massiven Messingbahnen, welche mit einer Kontaktoberfläche aus Silber versehen werden. Die Versilberung kann hier durch mechanischen Auftrag einer Silberschicht oder auch elektrochemische Behandlung erfolgen. Der Nachteil einer solchen Anordnung liegt in der relativ dünnen Silberauflage. Diese kann bei starker Beanspruchung in kurzer Zeit abgetragen sein, die dann verbleibende Messingbahn hat wieder sehr schlechte Übertragungseigenschaften.A known method to solve this problem is to use it of massive brass sheets, which with a contact surface Silver. The silvering can here by mechanical Application of a silver layer or electrochemical treatment respectively. The disadvantage of such an arrangement is the relative thin silver plating. This can be done in a short time with heavy use Be worn out, the remaining brass track has again very poor transmission properties.
Die Übertragungseigenschaften von solchen Schleifkontakten werden üblicherweise durch eine Reihe elektrischer Parameter charakterisiert. Bei einer Übertragung großer Ströme ist der Übergangswiderstand besonders wichtig. Dieser sollte sehr niedrig, vorzugsweise im Bereich von einigen mΩ, liegen. Zu kleineren Signalpegeln hin, wie diese bei Meß- und Sensorsignalen auftreten, ist auch das Kontaktrauschen wichtig. Ein solches Rauschen tritt während der Bewegung der Kontakte durch mechanische Schwingungen, wechseln des Kontaktpunktes sowie zusätzlich durch kleine Lichtbögen, die zwischen den beiden Kontaktelektroden brennen können, auf. Für eine gute Signalqualität ist ein niedriges Kontaktrauschen besonders wichtig.The transmission properties of such sliding contacts will be usually characterized by a series of electrical parameters. When large currents are transmitted, the contact resistance is special important. This should be very low, preferably in the range of a few mΩ. Towards smaller signal levels, such as those and sensor signals occur, contact noise is also important. On such noise occurs during the movement of the contacts through mechanical Vibrations, changing the contact point as well through small arcs between the two contact electrodes can burn on. For a good signal quality is a low one Contact noise is particularly important.
Aus der US-A-5 224 138 ist eine Lösung bekannt, die bei der Bildung des Oberbegriffs der vorliegenden Patentanmeldung zugrunde gelegt wurde. Gemäß dieser bekannten Lösung weist wenigstens einer der Kontakte ein Grundmaterial mit hoher mechanischer Stabilität auf, in das ein zweites Material eingetagert ist, das gute elektrische Eigenschaften bezüglich der Übertragung elektrischer Signale und/oder Energie besitzt, jedoch nur eine geringe mechanische Stabilität aufweist. Nachteilig bei dieser bekannten Lösung ist, das der berührende weitere Kontakt auf der gesamten Trajektorie der Bewegung nur mit dem zweiten, weichen Material in Kontakt steht. Dadurch ist der Abrieb dieses Materials sehr hoch, wodurch sehr schnell wieder der Zustand eintritt, dass der Kontakt zu dem Grundmaterial mit den schlechten elektrischen Eigenschaften hergestellt wird.From US-A-5 224 138 a solution is known which is used in the formation the preamble of the present patent application has been. According to this known solution, at least one of the Contacts a base material with high mechanical stability, in which is a second material that has good electrical properties regarding the transmission of electrical signals and / or energy has, but has only a low mechanical stability. The disadvantage of this known solution is that the other touching Contact on the entire trajectory of the movement only with the second, soft material is in contact. This is the abrasion of this Material very high, which means that the condition returns very quickly, that contact with the base material with the bad electrical Properties is made.
Aufgabe der Erfindung ist es, eine Anordnung zur Übertragung elektrischer Signale und/oder Energie zwischen gegeneinander beweglichen Einheiten mittels galvanischer Kontakte und insbesondere einer schleifenden Kontaktanordnung anzugeben, die einerseits eine hohe Lebensdauer und Zuverlässigkeit, auch bei hohen Kontaktgeschwindigkeiten und andererseits eine ausgezeichnete Signalübertragungsqualität bietet.The object of the invention is an arrangement for transmitting electrical Signals and / or energy between mutually movable Units by means of galvanic contacts and in particular a grinding Specify contact arrangement, on the one hand, a long service life and reliability, even at high contact speeds and on the other hand offers excellent signal transmission quality.
Eine erfindungsgemäße Lösung dieser Aufgabe ist im Patentanspruch 1
angegeben. Weiterbildungen der Erfindung sind Gegenstand der abhängigen
Ansprüche. An inventive solution to this problem is in
Erfindungsgemäß wird diese Aufgabe dadurch gelöst, dass das zweite Material derart in dem Grundmaterial verteilt ist, dass ein weiterer Kontakt auf der Trajektorie der Bewegung mit dem zweiten Material besteht.According to the invention, this object is achieved in that the second Material is distributed in the base material such that another contact insists on the trajectory of the movement with the second material.
Die Erfindung kombiniert damit die Vorzüge zweier unterschiedlicher Kontaktmaterialien, wie z.B. Stahl, Messing oder Kupfer und Silber. Dabei dient das Grundmaterial, das abriebfest und preisgünstig ist, als Träger der Anordnung und das zweite Material, welches gute elektrische Eigenschaften besitzt, als Kontaktierungsmaterial. Durch diese erfindungsgemäße Ausgestaltung läßt sich eine besonders hohe Übergangsqualität erzielen.The invention thus combines the advantages of two different ones Contact materials such as Steel, brass or copper and silver. there serves the base material, which is abrasion-resistant and inexpensive, as Carrier of the arrangement and the second material, which is good electrical Possesses properties as contact material. Through this invention Design can be a particularly high transition quality achieve.
Der aus einem Grundmaterial mit eingelagertem zweiten Material bestehende Kontakt kann eine Schleifbahn beispielsweise eines Schleifrings oder eine Kontaktbürste sein.The one consisting of a basic material with an embedded second material Contact can be made with a sliding track, for example a slip ring or be a contact brush.
Das zweite Material kann in der Oberfläche des Grundmaterials dispergiert sein; alternativ oder zusätzlich kann das Grundmaterial mindestens eine Aussparung aufweisen, in die das zweite Material eingebettet ist. Diese Aussparung kann insbesondere eine schwalbenschwanzförmige Nut sein, da sich so durch den Formschluß eine besonders gute Verbindung zwischen den beiden Materialien ergibt.The second material can be dispersed in the surface of the base material his; alternatively or additionally, the base material can at least have a recess in which the second material is embedded. This recess can in particular be dovetail-shaped Be groove, because the form-fit makes a particularly good connection between the two materials.
Weiterhin ist es von Vorteil, wenn die Aussparung zumindest abschnittsweise schräg zur Schleifrichtung und insbesondere wellenförmig verläuft.Furthermore, it is advantageous if the recess at least in sections at an angle to the grinding direction and in particular wavy runs.
Alternativ kann das zweite Material in Form mehrerer Inseln, d.h. äußerlich voneinander getrennter Kontaktbereiche, oder in Form einer Bahn in das Grundmaterial eingebettet sein. Alternatively, the second material can be in the form of several islands, i.e. externally separate contact areas, or in the form of a path in the base material must be embedded.
Alternativ kann das zweite Material in Form mehrerer inseln, d.h. äußerlich voneinander getrennter Kontaktbereiche, oder in Form einer Bahn in das Grundmaterial eingebettet sein.Alternatively, the second material can be in the form of several islands, i.e. externally separate contact areas, or in the form of a path in the base material must be embedded.
In jedem Falle ist es jedoch von Vorteil, wenn die Aussparung in ihrem Verlauf oder in ihrer Form senkrecht zur Schleifrichtung derart variiert, daß durch die Berührung der Schleifkontaktverbindung Spuren des zweiten Materials in das Grundmaterial eingerieben werden. Durch das Schleifen der Kontakte werden kleinste Partikel des zweiten Materials mit den guten elektrischen Eigenschaften in die Oberfläche des Grundmaterials, d.h. der massiven Kontaktbahn hinein gerieben und verbleiben dort in die Oberfläche eingelagert als gut leitfähiger Belag. Damit wird die Leitfähigkeit und insbesondere das Kontaktrauschen sowie der Übergangswiderstand der gesamten Anordnung wesentlich verbessert.In any case, it is advantageous if the recess in your Course or in their shape perpendicular to the grinding direction varies in such a way that by touching the sliding contact connection traces of second material can be rubbed into the base material. By the Grinding the contacts becomes the smallest particles of the second material with the good electrical properties in the surface of the base material, i.e. rubbed into the solid contact track and remain stored in the surface as a highly conductive covering. In order to the conductivity and in particular the contact noise as well as the Contact resistance of the entire arrangement has been significantly improved.
In einer besonders vorteilhaften Ausgestaltung der Erfindung wird das zweite Material so ausgewählt, daß es weicher als das Grundmaterial ist Damit kann es besonders leicht in die Oberfläche dieses Materials eingebracht werden.In a particularly advantageous embodiment of the invention second material selected so that it is softer than the base material This makes it particularly easy to get into the surface of this material be introduced.
Weiterhin ist es bevorzugt, wenn mindestens ein Kontaktelement mit Spiel senkrecht zu einer Hauptschleifrichtung gelagert ist. Durch die kleinen zusätzlichen Bewegungen der Bürste quer oder schräg zur Hauptbewegungsachse kann sich das zweite Kontaktmaterial besser über die Kontaktbahn aus dem Grundmaterial verteilen. Dies kann auf besonders einfache Weise durch eine Aufhängung bzw. Lagerung mit hohen Toleranzen, die einen Schlag oder ein Lagerspiel erlauben, geschehen. Selbstverständlich kann dies auch durch eine gezielte Steuerung der Bewegung, durch eine einer vorgegebenen Trajektorie folgende Führung der Kontakte, erfolgen. It is further preferred if at least one contact element is included Game is stored perpendicular to a main grinding direction. Through the small additional movements of the brush across or at an angle Main movement axis, the second contact material can better Spread over the contact sheet from the base material. This can be due to particularly simple way with a suspension or storage high tolerances that allow a stroke or a bearing play happen. Of course, this can also be done through targeted control the movement, following a given trajectory Management of the contacts.
In einer weiteren vorteilhaften Ausführung der Erfindung wird die Bahn des zweiten Materials in einer von der Hauptbewegungsbahn der Anordnung abweichenden Form gestaltet Dies kann beispielsweise eine spiralförmige Bahn sein.In a further advantageous embodiment of the invention, the web of the second material in one of the main trajectory of the assembly deviating shape This can be, for example spiral path.
Natürlich macht es bei der oben beschriebenen Kontaktanordnung aus einer Bürste, weiche vorzugsweise ein leitendes Material und ein schmierendes Material enthält sowie einer Kontaktbahn aus einem vorzugsweise gut leitenden Material, keinen Unterschied, ob diese Komponenten vertauscht werden, d.h. eine Bürste aus einem elektrisch gut leitenden Material auf einer Kontaktbahn, welche eine Kombination aus einem leitenden und einem schmierenden Material, wie z.B. Silber und Graphit, enthält In diesem Falle würde die erRndungsgemäße Anordnung für die Bürste, welche nun zwei unterschiedlich leitende Materialien enthält, gelten.Of course, this is what matters with the contact arrangement described above a brush, preferably a conductive material and a contains lubricating material and a contact track made of a preferably well conductive material, no difference whether these components are exchanged, i.e. a brush from an electrical good conductive material on a contact track, which is a combination of a conductive and a lubricating material, e.g. Silver and In this case, graphite would contain the arrangement according to the invention for the brush, which is now two different conductive materials contains apply.
Die Erfindung wird nachstehend anhand eines Ausführungsbeispiels unter Bezugnahme auf die Zeichnung näher beschrieben, in der zeigen:
- Fig. 1
- eine erfindungsgernäße Anordnung
- Fig. 2
- eine Anordnung mit einer wellenförmig verlegten Bahn des zweiten Kontaktmaterials
- Fig. 1
- an inventive arrangement
- Fig. 2
- an arrangement with a wavy path of the second contact material
Fig. 1 zeigt eine erfindungsgemäße Anordnung, bestehend aus einem ersten Kontaktpartner, welcher einerseits ein Grundmaterial bzw. ein erstes Material (1) mit guten mechanischen Eigenschaften sowie eine geringe Menge eines zweiten Materials (2) mit guten elektrischen Eigenschaften enthält.Fig. 1 shows an arrangement according to the invention, consisting of a first contact partner, who on the one hand a basic material or a first material (1) with good mechanical properties and one small amount of a second material (2) with good electrical properties contains.
Zur besseren mechanischen Fixierung befindet sich das zweite Material in einer als Schwalbenschwanz ausgeführten Nut. Weiterhin ist ein zweiter Kontaktpartner (3), welcher beispielsweise eine Bürste bestehend aus Silber und Graphit sein kann, enthalten. Selbstverständlich macht es keinen Unterschied, ob bei dieser Anordnung die Bürste aus Silber und Graphit oder die Laufbahn selbst aus einem solchen Material besteht und eine Bürste aus den zuvor beschriebenen Kontaktpartnern realisiert wird.The second material is for better mechanical fixation in a dovetail groove. Furthermore is a second contact partner (3), which consists for example of a brush can be made of silver and graphite. Of course it makes no difference whether the brush is off with this arrangement Silver and graphite or the career itself from such a material consists and a brush from the previously described contact partners is realized.
Fig. 2 zeigt eine Anordnung, bestehend aus einem ersten Kontaktmaterial (1) sowie einer Bahn eines zweiten Kontaktmaterials (2), welche in diesem wellenförmig verlegt ist, so daß sich eine bessere Verteilung dieses Kontaktmaterials in der gesamten Oberfläche, insbesondere des ersten Materials (1) ergibt.Fig. 2 shows an arrangement consisting of a first contact material (1) and a web of a second contact material (2), which in this is wavy, so that there is a better distribution this contact material in the entire surface, especially the first material (1) results.
Claims (18)
- Assembly for transmitting electrical signals and/or energy between units mobile relative to each other, by means of galvanic contacts and, in particular, a sliding contact arrangement, wherein at least one of the contacts consists of a base material (1) having a high mechanical stability and having a second material (2) embedded therein, the second material having good electrical properties with respect to a transmission of electrical signals and/or energy,
characterized in that the second material (2) is distributed in the base material (1) in such manner that further contact with the second material (2) is made along the trajectory of the movement. - Assembly according to claim 1,
characterized in that the contact consisting of a base material (1) with embedded second material (2) is a slideway. - Assembly according to claim 2,
characterized in that the contact consisting of a base material (1) with embedded second material (2) is a component of a slip ring. - Assembly according to claim 1,
characterized in that the contact consisting of a base material (1) with embedded second material (2) is a contact brush (3). - Assembly according to any one of claims 1 to 4,
characterized in that the second material (2) is dispersed in the surface of the base material (1). - Assembly according to any one of claims 1 to 4,
characterized in that the base material (1) has at least one recess in which the second material (2) is embedded. - Assembly according to claim 6,
characterized in that the recess is a dovetail-shaped groove. - Assembly according to claim 6 or 7,
characterized in that at least sections of the recess extend obliquely to the sliding direction. - Assembly according to any one of claims 6 to 8,
characterized in that the course of the recess is wave-shaped. - Assembly according to any one of claims 6 to 9,
characterized in that the second material (2) is embedded in the base material (1) in the form of a plurality of islands, i.e. contact areas externally separate from each other. - Assembly according to any one of claims 6 to 9,
characterized in that the second material (2) is disposed to form a track. - Assembly according to any one of claims 6 to 11,
characterized in that the course or shape of the recess perpendicular to the sliding direction varies in such manner that the contact made by the sliding-contact connection causes traces of the second material (2) to be rubbed into the base material (1). - Assembly according to any one of claims 1 to 12,
characterized in that at least one contact element is supported to have a clearance perpendicular to a main sliding direction. - Assembly according to claim 13,
characterized in that the contact element supported to have the clearance is guided perpendicularly or obliquely to the main sliding direction during the sliding movement of the sliding-contact connection. - Assembly according to any one of claims 1 to 14,
characterized in that the second material (2) is selected to be softer than the base material (1). - Assembly according to claim 15,
characterized in that the base material (1) is steel, copper, or a copper or brass alloy, and the second material is silver or a silver alloy. - Assembly according to any one of claims 1 to 16,
characterized in that the sliding-contact arrangement is configured so that the movement between both contacting members takes place along a changing or non-symmetrical track. - Assembly according to any one of claims 1 to 17,
characterized in that at least one further contact region of graphite is provided which lubricates the sliding-contact connection during the sliding movement.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19758261 | 1997-12-31 | ||
| DE19758261 | 1997-12-31 | ||
| PCT/DE1998/003815 WO1999035720A1 (en) | 1997-12-31 | 1998-12-31 | Assembly for transmitting electrical signals and/or energy |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1072070A1 EP1072070A1 (en) | 2001-01-31 |
| EP1072070B1 true EP1072070B1 (en) | 2004-04-07 |
Family
ID=7853597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP98966595A Expired - Lifetime EP1072070B1 (en) | 1997-12-31 | 1998-12-31 | Assembly for transmitting electrical signals and/or energy |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US6644977B1 (en) |
| EP (1) | EP1072070B1 (en) |
| JP (1) | JP2002501290A (en) |
| DE (2) | DE19882079D2 (en) |
| WO (1) | WO1999035720A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10009007B4 (en) * | 2000-02-25 | 2004-02-05 | Sgl Carbon Ag | Slip ring body for a slip ring arrangement for electric motors and generators |
| EP2936625B1 (en) | 2012-12-18 | 2019-03-27 | Schleifring GmbH | Self-lubricating slip ring |
| HRP20220176T1 (en) | 2014-02-27 | 2022-04-29 | Synartro Ab | Hyaluronan conjugates with pharmaceutically active substances, methods and compositions |
| DE102019119207B4 (en) | 2019-07-16 | 2024-03-28 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Shaft grounding ring |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2298236A (en) * | 1940-08-03 | 1942-10-06 | Bell Telephone Labor Inc | Terminal bank |
| US2501164A (en) * | 1943-09-27 | 1950-03-21 | Metals & Controls Corp | Method of making electrical contacts |
| GB1304522A (en) * | 1969-09-06 | 1973-01-24 | ||
| DE2316796A1 (en) * | 1973-04-04 | 1974-10-17 | Carbone Ag | COAL BRUSH |
| US4415635A (en) * | 1980-04-09 | 1983-11-15 | The University Of Virginia | Electric brush |
| JP3100643B2 (en) * | 1991-01-28 | 2000-10-16 | 株式会社東芝 | Slip ring device |
| US5236628A (en) * | 1991-02-27 | 1993-08-17 | Metallon Engineered Materials Corporation | Noble metal and solid-phase lubricant composition and electrically conductive interconnector |
| US5139891A (en) * | 1991-07-01 | 1992-08-18 | Olin Corporation | Palladium alloys having utility in electrical applications |
| US5281176A (en) * | 1991-07-22 | 1994-01-25 | Daido Tokushuko Kabushiki Kaisha | Contact member with composite sintered metal paste strip having 1-5 wt % carbon diffusion bonded therein |
| US5634800A (en) * | 1994-04-29 | 1997-06-03 | The B. F. Goodrich Company | Sliding contact for a propeller ice protection system |
| JP2895793B2 (en) * | 1995-02-24 | 1999-05-24 | マブチモーター株式会社 | Sliding contact material, clad composite material, commutator made of the same, and small DC motor using the commutator |
-
1998
- 1998-12-31 DE DE19882079T patent/DE19882079D2/en not_active Expired - Lifetime
- 1998-12-31 US US09/555,567 patent/US6644977B1/en not_active Expired - Fee Related
- 1998-12-31 DE DE59811161T patent/DE59811161D1/en not_active Expired - Lifetime
- 1998-12-31 EP EP98966595A patent/EP1072070B1/en not_active Expired - Lifetime
- 1998-12-31 JP JP2000527996A patent/JP2002501290A/en active Pending
- 1998-12-31 WO PCT/DE1998/003815 patent/WO1999035720A1/en active IP Right Grant
Also Published As
| Publication number | Publication date |
|---|---|
| DE19882079D2 (en) | 2000-11-16 |
| DE59811161D1 (en) | 2004-05-13 |
| WO1999035720A1 (en) | 1999-07-15 |
| US6644977B1 (en) | 2003-11-11 |
| EP1072070A1 (en) | 2001-01-31 |
| JP2002501290A (en) | 2002-01-15 |
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