EP1607987A1 - Sliding contact - Google Patents
Sliding contact Download PDFInfo
- Publication number
- EP1607987A1 EP1607987A1 EP05012724A EP05012724A EP1607987A1 EP 1607987 A1 EP1607987 A1 EP 1607987A1 EP 05012724 A EP05012724 A EP 05012724A EP 05012724 A EP05012724 A EP 05012724A EP 1607987 A1 EP1607987 A1 EP 1607987A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sliding contact
- wire
- sliding
- contact body
- contact 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.)
- Withdrawn
Links
- 229910000510 noble metal Inorganic materials 0.000 claims description 5
- 229910045601 alloy Inorganic materials 0.000 claims description 2
- 239000000956 alloy Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 4
- 239000002184 metal Substances 0.000 abstract description 3
- 229910052751 metal Inorganic materials 0.000 abstract description 3
- 229910052761 rare earth metal Inorganic materials 0.000 abstract 2
- 150000002910 rare earth metals Chemical class 0.000 abstract 2
- 239000010970 precious metal Substances 0.000 description 5
- 230000013011 mating Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000012858 resilient material Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R39/00—Rotary current collectors, distributors or interrupters
- H01R39/02—Details for dynamo electric machines
- H01R39/18—Contacts for co-operation with commutator or slip-ring, e.g. contact brush
- H01R39/24—Laminated contacts; Wire contacts, e.g. metallic brush, carbon fibres
Definitions
- the invention relates to a sliding contact with a base body made of a wire.
- sliding contacts are known inter alia from DE 40 20 700 A1.
- the ones revealed here Sliding contact wires have been rounded off at their edges by means of a laser beam.
- US 5,315,758 A and US 5,416,969 A are known sliding contacts formed from sheet metal strips, which carry contact bodies at their ends.
- Such sliding contacts are for example in Potentiometers, in position sensors or in rotary switches together with a metallic one Used mating contact.
- the invention has for its object to improve the known sliding contacts.
- the object is achieved in that at one end of the wire a Sliding contact body is arranged.
- the main body of the Contact us to choose a cheap, resilient material while that transmitting the energy Part as Schteifternoplasty from another, optimized for energy transfer material can exist.
- Due to the structure of the sliding contact from two different output parts can realize different material properties in a sliding contact so that it adapts to the specific requirements of its intended use can be. It is not necessary, the sliding contact body at the physical end of to arrange wire-shaped body, but he can also at an example by Bending or kinking arising (relative) end of the wire to be arranged on the the wire comes closest to the mating contact.
- the sliding contact body is arranged on the front side of the wire, but it is also an arrangement of the sliding contact body on the lateral surface of the wire possible. It is expedient that the sliding contact body in the longitudinal direction of the wire over whose one end protrudes. It may also be expedient that the sliding contact body surrounds the jacket at least on a part of its circumference, for example in the form of a longitudinally cut tube.
- the sliding contact body formed as a ball or as a piece of wire is.
- the base body and / or the sliding contact body can be in and / or against each other be angled.
- the diameter of the sliding contact body can be about as large as the diameter of the body. This diameter may preferably be about 50 ⁇ m 150 microns.
- the sliding contact body of a Noble metal or a noble metal alloy is formed.
- the sliding contact shown in Figure 1 has a base body 1 made of a non-precious metal spring wire and a sliding contact body 2 made of a precious metal ball (Figure 1a).
- Sliding contact body 2 is by means of laser welding or resistance welding to the main body 1 welded.
- Schleiking in which instead of a precious metal ball as a sliding contact body 2 a precious metal wire section is used.
- the sliding contact body 2 either at the end (FIG. 1a, 2a) or at the lateral surface of the main body (FIG. 1b, 2b) be.
- Figures 3 and 4 similar sliding contacts are shown, in which the Base body 1 is angled.
- both the Base body 1 and the sliding contact body 2 angled.
- the according to Figures 3 and 4 angled sliding contacts are also referred to as so-called scratch grinders.
- FIG. 6 shows a further embodiment of the sliding contact according to the invention, at the around the main body 1 forming spring wire a semicircular embossed noble metal band is welded as a grinding contact body 2 in the form of a halved tube.
- the Precious metal band can be made very thin and gains its stability from the bent-through Shape and fixation on the lateral surface of the base body. 1
Landscapes
- Contacts (AREA)
- Details Of Resistors (AREA)
- Adjustable Resistors (AREA)
Abstract
Description
Die Erfindung betrifft einen Schleifkontakt mit einem Grundkörper aus einem Draht.The invention relates to a sliding contact with a base body made of a wire.
Derartige Schleifkontakte sind unter anderem aus DE 40 20 700 A1 bekannt. Die hier offenbarten Schleifkontaktdrähte sind an ihren Kanten mittels Laserstrahl abgerundet worden. Aus US 5,315,758 A und US 5,416,969 A sind aus Blechstreifen gebildete Schleifkontakte bekannt, die an ihren Enden Kontaktkörper tragen. Derartige Schleifkontakte werden beispielsweise in Potentiometern, in Positionssensoren oder in Drehschaltern gemeinsam mit einem metallischen Gegenkontakt eingesetzt.Such sliding contacts are known inter alia from DE 40 20 700 A1. The ones revealed here Sliding contact wires have been rounded off at their edges by means of a laser beam. Out US 5,315,758 A and US 5,416,969 A are known sliding contacts formed from sheet metal strips, which carry contact bodies at their ends. Such sliding contacts are for example in Potentiometers, in position sensors or in rotary switches together with a metallic one Used mating contact.
Der Erfindung liegt die Aufgabe zugrunde, die bekannten Schleifkontakte zu verbessem.The invention has for its object to improve the known sliding contacts.
Erfindungsgemäß wird die Aufgabe dadurch gelöst, dass an einem Ende des Drahtes ein Schleifkontaktkörper angeordnet ist. Auf diese Weise ist es möglich, für den Grundkörper des Kontaktes ein preiswertes, federndes Material zu wählen, während das die Energie übertragende Teil als Schteifkontaktkörper aus einem anderen, zur Energieübertragung optimierten Material bestehen kann. Durch den Aufbau des Schleifkontaktes aus zwei unterschiedlichen Ausgangsteilen können unterschiedliche Materialeigenschaften in einem Schleifkontakt realisiert werden, so dass er an die speziellen Erfordernisse seines beabsichtigten Einsatzes angepasst werden kann. Dabei ist es nicht notwendig, den Schleifkontaktkörper am körperlichen Ende des drahtförmigen Grundkörpers anzuordnen, sondern er kann auch an einem beispielsweise durch Biegung oder Abknicken entstehenden (relativen) Ende des Drahtes angeordnet sein, an dem der Draht dem Gegenkontakt am nächsten kommt. Dadurch sind auch solche Schleifkontakte realisierbar, bei denen der drahtförmige Grundkörper an seinen (absoluten) Enden gehalten ist und an einer Stelle dazwischen für die Bildung eines Kontaktes vorgesehen ist. Überraschenderweise hat es sich erwiesen, dass Drähte, die als Schleifkontakt eingesetzt werden, mit einem separaten an ihnen angeordneten Schleifkontaktkörper versehen werden können, ohne dass die für die Kontaktgebung notwenige Federwirkung des Drahtes negativ beeinflusst wird, wobei der Kontaktwiderstand mit dem Gegenkontakt gleichzeitig niedrig gehalten werden kann. insofern weisen die erfindungsgemäßen Schleifkontakte gegenüber bekannten, zusammengesetzten Schleifkontakten den Vorteil des geringeren Materialverbrauchs und der niedrigeren Masse auf.According to the invention the object is achieved in that at one end of the wire a Sliding contact body is arranged. In this way it is possible for the main body of the Contact us to choose a cheap, resilient material while that transmitting the energy Part as Schteifkontaktkörper from another, optimized for energy transfer material can exist. Due to the structure of the sliding contact from two different output parts can realize different material properties in a sliding contact so that it adapts to the specific requirements of its intended use can be. It is not necessary, the sliding contact body at the physical end of to arrange wire-shaped body, but he can also at an example by Bending or kinking arising (relative) end of the wire to be arranged on the the wire comes closest to the mating contact. As a result, such sliding contacts are feasible, in which the wire-shaped body is held at its (absolute) ends and is provided at a position therebetween for the formation of a contact. Surprisingly It has been proven that wires that are used as sliding contact, with a separate arranged on them sliding contact body can be provided without that the necessary for the contacting spring action of the wire is adversely affected, wherein the contact resistance with the mating contact can be kept low at the same time. In this respect, the sliding contacts according to the invention over known, composite Slip contacts the advantage of lower material consumption and lower Mass up.
Vorzugsweise ist der Schleifkontaktkörper an der Stirnseite des Drahtes angeordnet, es ist jedoch auch eine Anordnung des Schleifkontaktkörper an der Mantelfläche des Drahtes möglich. Dabei ist es zweckmäßig, dass der Schleifkontaktkörper in Längsrichtung des Drahtes über dessen eines Ende hinausragt. Es kann auch zweckmäßig sein, dass der Schleifkontaktkörper den Mantel zumindest an einem Teil seines Umfanges umgreift, beispielsweise in Form eines längsgeschnittenen Rohres.Preferably, the sliding contact body is arranged on the front side of the wire, but it is Also an arrangement of the sliding contact body on the lateral surface of the wire possible. It is expedient that the sliding contact body in the longitudinal direction of the wire over whose one end protrudes. It may also be expedient that the sliding contact body surrounds the jacket at least on a part of its circumference, for example in the form of a longitudinally cut tube.
Zweckmäßig kann es sein, dass der Schleifkontaktkörper als Kugel oder als Drahtstück ausgebildet ist. Grundkörper und/oder der Schleifkontaktkörper können in sich und/oder gegeneinander abgewinkelt sein. Der Durchmesser des Schleifkontaktkörpers kann etwa so groß sein wie der Durchmesser des Grundkörpers. Dieser Durchmesser kann vorzugsweise etwa 50 µm bis 150 µm betragen. Insbesondere ist es von Vorteil, dass der Schleifkontaktkörper aus einem Edelmetall oder einer Edelmetalllegierung gebildet ist.Appropriately, it may be that the sliding contact body formed as a ball or as a piece of wire is. The base body and / or the sliding contact body can be in and / or against each other be angled. The diameter of the sliding contact body can be about as large as the diameter of the body. This diameter may preferably be about 50 μm 150 microns. In particular, it is advantageous that the sliding contact body of a Noble metal or a noble metal alloy is formed.
Nachfolgend wird die Erfindung an Hand einer Zeichnung erläutert. In der Zeichnung zeigt:
Figur 1- einen Schleifkontakt mit kugeligem Schleifkontaktkörper,
Figur 2- einen Schleifkontakt mit drahtförmigem Kontaktkörper,
- Figur 3
- eine Abwandlung der Ausführung nach
Figur 1, - Figur 4
- eine Abwandlung der Ausführung nach
Figur 2, - Figur 5
- einen Schleifkontakt mit abgewinkeltem Draht und Schleifkontaktkörper,
- Figur 6
- einen Schleifkontakt mit halbrohrförmigem Schleifkontaktkörper.
- FIG. 1
- a sliding contact with a spherical sliding contact body,
- FIG. 2
- a sliding contact with a wire-shaped contact body,
- FIG. 3
- a modification of the embodiment of Figure 1,
- FIG. 4
- a modification of the embodiment of Figure 2,
- FIG. 5
- a sliding contact with angled wire and sliding contact body,
- FIG. 6
- a sliding contact with semi-tubular sliding contact body.
Der in Figur 1 dargestellte Schleifkontakt weist einen Grundkörper 1 aus einem Unedelmetall-Federdraht
und einem Schleifkontaktkörper 2 aus einer Edelmetallkugel auf (Figur 1a). Der
Schleifkontaktkörper 2 ist mittels Laserschweißen oder Widerstandsschweißen an den Grundkörper
1 angeschweißt. In gleicher Weise hergestellt werden kann der in Figur 2 dargestellte
Schleikontakt, bei dem statt einer Edelmetallkugel als Schleifkontaktkörper 2 ein Edelmetalldrahtabschnitt
verwendet wird. In beiden Fällen kann der Schleifkontaktkörper 2 entweder
stimseitig (Figur 1a, 2a) oder an der Mantelfläche des Grundkörpers (Figur 1b, 2b) angeschweißt
sein. In den Figuren 3 und 4 sind ähnliche Schleifkontakte dargestellt, bei denen der
Grundkörper 1 abgewinkelt ist. In der in Figur 5 dargestellten Ausführungsform ist sowohl der
Grundkörper 1 als auch der Schleifkontaktkörper 2 abgewinkelt. Die gemäß den Figuren 3 und
4 abgewinkelten Schleifkontakte werden auch als sogenannte Kratzschleifer bezeichnet.The sliding contact shown in Figure 1 has a
In Figur 6 ist eine weitere Ausführungsform des erfindungsgemäßen Schleifkontaktes dargestellt,
bei dem um den den Grundkörper 1 bildenden Federdraht ein halbrundgeprägtes Edelmetallband
als Schleiflcontaktkörper 2 in der Form eines halbierten Rohres angeschweißt ist. Das
Edelmetallband kann sehr dünn ausgebildet sein und gewinnt seine Stabilität aus der durchgebogenen
Form und der Fixierung an der Mantelfläche des Grundkörpers 1.FIG. 6 shows a further embodiment of the sliding contact according to the invention,
at the around the
Claims (10)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102004028838A DE102004028838A1 (en) | 2004-06-16 | 2004-06-16 | sliding contact |
| DE102004028838 | 2004-06-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP1607987A1 true EP1607987A1 (en) | 2005-12-21 |
Family
ID=34937424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP05012724A Withdrawn EP1607987A1 (en) | 2004-06-16 | 2005-06-14 | Sliding contact |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20050282446A1 (en) |
| EP (1) | EP1607987A1 (en) |
| JP (1) | JP2006004938A (en) |
| DE (1) | DE102004028838A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104392812A (en) * | 2014-11-29 | 2015-03-04 | 王振环 | Light-emitting rheostat |
| CN106099596A (en) * | 2010-10-13 | 2016-11-09 | 贺利氏材料工艺有限责任两合公司 | There is the contact containing noble metal on the spring support of rotational symmetric moment of flexure |
| EP3168944A1 (en) * | 2015-11-11 | 2017-05-17 | Schunk Gerhard Carbon Technology GmbH | Sliding contact |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007142160A1 (en) * | 2006-06-02 | 2007-12-13 | Hokuriku Electric Industry Co., Ltd. | Variable resistor |
| JP5048665B2 (en) * | 2006-06-02 | 2012-10-17 | 北陸電気工業株式会社 | Variable resistor |
| DE102010064498B3 (en) * | 2010-10-13 | 2013-01-31 | Heraeus Materials Technology Gmbh & Co. Kg | Spring contact element of slip ring transmitter used in e.g. electromotor, has contact piece with spring support that is conductively connected with conductive non-precious material to form abrasive contact portion |
| DE102011015579B4 (en) | 2011-03-30 | 2017-03-23 | Heraeus Deutschland GmbH & Co. KG | Elastic sliding contact and method for its production |
| DE102011106518B4 (en) * | 2011-06-15 | 2017-12-28 | Heraeus Deutschland GmbH & Co. KG | Wire for sliding contacts and sliding contacts |
| DE102012008908B4 (en) | 2012-05-08 | 2014-05-08 | Heraeus Materials Technology Gmbh & Co. Kg | Method of making a sliding contact with multiple contacts |
| US11830642B2 (en) | 2020-03-30 | 2023-11-28 | Tokyo Cosmos Electric Co., Ltd. | Movable contact, variable resistor, and method for manufacturing movable contact |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4642602A (en) * | 1984-07-03 | 1987-02-10 | Robert Bosch Gmbh | Electric potentiometer |
| US5047746A (en) * | 1990-05-24 | 1991-09-10 | Bourns, Inc. | Potentiometer wiper assembly |
| DE4020700A1 (en) * | 1990-06-29 | 1992-01-09 | Kern & Liebers | METHOD AND DEVICE FOR EDGING SPRINGS |
| US5258737A (en) * | 1991-09-21 | 1993-11-02 | Robert Bosch Gmbh | Potentiometer |
| US5315758A (en) * | 1990-10-31 | 1994-05-31 | Alps Electric Co., Ltd. | Method for manufacturing slide electrical contact |
| US5416969A (en) * | 1992-05-11 | 1995-05-23 | Alps Electric Co., Ltd. | Sliding contact producing method |
| WO2003100796A1 (en) * | 2002-05-23 | 2003-12-04 | Tanaka Kikinzoku Kogyo K.K. | Sliding contact and method for producing the same |
| US20040041687A1 (en) * | 2001-09-04 | 2004-03-04 | Reiner Schweinfurth | Potentiometer |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3855567A (en) * | 1973-03-13 | 1974-12-17 | Gardner Denver Co | Electrical connector and method for making an electrical circuit |
| JPS5359602U (en) * | 1976-10-22 | 1978-05-20 | ||
| US4195898A (en) * | 1977-12-27 | 1980-04-01 | Bunker Ramo Corporation | Patchcord connector |
| DE2841114C3 (en) * | 1978-09-21 | 1981-11-12 | Norbert 5275 Bergneustadt Weiner | Thermal fuse for electrical devices |
| US4447752A (en) * | 1982-06-07 | 1984-05-08 | The Charles Stark Draper Laboratory, Inc. | Ball contact slip ring assembly |
| DE19909319A1 (en) * | 1998-05-13 | 2000-04-27 | Peter Hille | Miniature carbon article production, used as contacts in potentiometric sensors or to replace precious metal slides or switch contacts, comprises direct photolithographic processing of photosensitive polymer lacquer layers |
| DE19913246A1 (en) * | 1999-03-24 | 2000-09-28 | Siedle Horst Gmbh & Co Kg | Wire guide for transmission of electrical signals, has several groups separated by gaps of guide wires in which each wire group is arranged on finger-shaped spring element |
| EP1195854A1 (en) * | 2000-10-05 | 2002-04-10 | Nexans | Modular plug and method of coupling a cable with twisted wire pair to the same |
-
2004
- 2004-06-16 DE DE102004028838A patent/DE102004028838A1/en not_active Withdrawn
-
2005
- 2005-06-14 EP EP05012724A patent/EP1607987A1/en not_active Withdrawn
- 2005-06-15 JP JP2005175596A patent/JP2006004938A/en not_active Withdrawn
- 2005-06-15 US US11/153,651 patent/US20050282446A1/en not_active Abandoned
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4642602A (en) * | 1984-07-03 | 1987-02-10 | Robert Bosch Gmbh | Electric potentiometer |
| US5047746A (en) * | 1990-05-24 | 1991-09-10 | Bourns, Inc. | Potentiometer wiper assembly |
| DE4020700A1 (en) * | 1990-06-29 | 1992-01-09 | Kern & Liebers | METHOD AND DEVICE FOR EDGING SPRINGS |
| US5315758A (en) * | 1990-10-31 | 1994-05-31 | Alps Electric Co., Ltd. | Method for manufacturing slide electrical contact |
| US5258737A (en) * | 1991-09-21 | 1993-11-02 | Robert Bosch Gmbh | Potentiometer |
| US5416969A (en) * | 1992-05-11 | 1995-05-23 | Alps Electric Co., Ltd. | Sliding contact producing method |
| US20040041687A1 (en) * | 2001-09-04 | 2004-03-04 | Reiner Schweinfurth | Potentiometer |
| WO2003100796A1 (en) * | 2002-05-23 | 2003-12-04 | Tanaka Kikinzoku Kogyo K.K. | Sliding contact and method for producing the same |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106099596A (en) * | 2010-10-13 | 2016-11-09 | 贺利氏材料工艺有限责任两合公司 | There is the contact containing noble metal on the spring support of rotational symmetric moment of flexure |
| CN106099596B (en) * | 2010-10-13 | 2019-10-18 | 贺利氏材料工艺有限责任两合公司 | The contact containing noble metal on the spring support of moment of flexure with rotational symmetry |
| CN104392812A (en) * | 2014-11-29 | 2015-03-04 | 王振环 | Light-emitting rheostat |
| CN104392812B (en) * | 2014-11-29 | 2017-10-13 | 江苏远华轻化装备有限公司 | A kind of luminous varistor |
| EP3168944A1 (en) * | 2015-11-11 | 2017-05-17 | Schunk Gerhard Carbon Technology GmbH | Sliding contact |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2006004938A (en) | 2006-01-05 |
| DE102004028838A1 (en) | 2006-01-26 |
| US20050282446A1 (en) | 2005-12-22 |
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