EP3196983A2 - Electric contact element - Google Patents

Electric contact element Download PDF

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Publication number
EP3196983A2
EP3196983A2 EP17000261.2A EP17000261A EP3196983A2 EP 3196983 A2 EP3196983 A2 EP 3196983A2 EP 17000261 A EP17000261 A EP 17000261A EP 3196983 A2 EP3196983 A2 EP 3196983A2
Authority
EP
European Patent Office
Prior art keywords
contact
contact element
hollow cylinder
slot
region
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Withdrawn
Application number
EP17000261.2A
Other languages
German (de)
French (fr)
Other versions
EP3196983A3 (en
Inventor
Martin Schmidt
Thomas Wolting
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Harting Electric Stiftung and Co KG
Original Assignee
Harting Electric GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Harting Electric GmbH and Co KG filed Critical Harting Electric GmbH and Co KG
Publication of EP3196983A2 publication Critical patent/EP3196983A2/en
Publication of EP3196983A3 publication Critical patent/EP3196983A3/en
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/10—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation
    • H01R4/18—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/04—Pins or blades for co-operation with sockets
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/10—Sockets for co-operation with pins or blades
    • H01R13/11—Resilient sockets
    • H01R13/111—Resilient sockets co-operating with pins having a circular transverse section
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/10—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation
    • H01R4/18—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping
    • H01R4/20—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping using a crimping sleeve
    • 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
    • H01R43/16—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for manufacturing contact members, e.g. by punching and by bending
    • 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
    • H01R43/04—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for forming connections by deformation, e.g. crimping tool
    • H01R43/048—Crimping apparatus or processes
    • H01R43/055—Crimping apparatus or processes with contact member feeding mechanism

Definitions

  • the invention relates to an electrical contact element according to the preamble of claim 1.
  • Such contact elements are needed to establish an electrical connection between an electrical conductor, in particular a stranded conductor, and a terminal end of a pin or socket contact.
  • connection technique of crimping is frequently selected.
  • the contact elements carry at their conductor terminal end an axial bore, in which the stripped end of the stranded conductor is inserted and squeezed by crimping.
  • the DE 88 040 92 U1 shows an electrical contact element which was produced in stamping and bending technology.
  • the electrical contact element is designed either as a pin contact or as a socket contact, the connection of a stranded conductor to the contact element being effected by crimping.
  • the crimping region of the contact element is designed substantially as a U-shaped open element. This open crimping range has the advantage that stranded conductors of different diameters can be connected to the same contact element.
  • US 5653 615 A1 suggests a contact element, which is essentially a hollow cylinder - that is not solid - formed.
  • the EP 0 197 821 A1 shows a contact element which is composed of three different segments.
  • the DE 19 92 567 U shows a contact element, designed as a pin or socket contact, which is made of solid material.
  • the GB 346 008 A shows a contact element, the contact area is executed wrench-like.
  • connection region has approximately centrally an outwardly curved lamellar structure.
  • contact elements made of solid material which have a crimping area for connecting stranded conductors.
  • Such contact elements are made, for example, by a piece of wire defined length is separated and the contours of the contact element are machined out of this piece of wire, for example using the rotation technique.
  • these contact elements of the crimp is formed as a hollow cylinder with a closed lateral surface. This crimping area is only suitable for connecting an electrical conductor cable of specific diameter. Thus, when connecting stranded conductors with slightly different diameters, each different contact elements made of solid material must be used.
  • the object of the invention is to propose an electrical contact element, which has a low electrical resistance has and which is also suitable for electrical contacting of stranded conductors of different diameters.
  • the electrical contact element is made of solid material.
  • the turning technique is used on curved or CNC-controlled machines.
  • the contact region of the contact element can be designed both as a pin contact or as a socket contact.
  • the connection region is designed as a crimp connection in order to be able to contact in particular stranded conductors electrically.
  • the strands of an electrical conductor cable to be connected are inserted into the connecting region formed as a hollow cylinder.
  • the hollow cylinder is slotted in the axial direction and is thereby opened laterally.
  • a force is exerted on the lateral surface of the slotted hollow cylinder, so that the opposite slot edges are bent inward and rolled up.
  • the permanently deformed connection area of the contact element are now the compacted strands of the conductor cable.
  • the slotted hollow cylinder is suitable for crimping stranded conductors of different diameters. Without the axial slot would be in the crimp or terminal area in stranded conductors with too low Diameter form cavities that allow oxidation processes and negatively affect the cable pull-out forces.
  • conductor cables of different diameters can be electrically contacted.
  • the contact element during the current flow is advantageously less heated than a contact element that was produced in Stänz bending technique.
  • the length of the axial slot in the connection region is more than half the length of the hollow cylinder.
  • the hollow cylinder is slotted in the axial direction by more than half its length. This prevents the formation of cracks in the lateral surface of the hollow cylinder during the crimping process. Through the cracks, air (but also other media) can reach the strands of the conductor cable. As a result, oxidation processes can be triggered which worsen the electrical properties of the electrical contact, for example the resistance.
  • the contact element of the hollow cylinder of the connection area in addition to the axial slot, at least one more times slit.
  • This second slot is aligned substantially 90 ° to the first, axial slot. In other words, the second slot is formed across the axis of the first axial slot.
  • the base surface of the hollow cylindrical body will be circular in the connection region of the contact element.
  • other geometric shapes such as rectangle, square, ellipse or oval can also be advantageous and can be realized by means of turning or milling technology.
  • a ring element is formed between plug and connection area.
  • the ring element is disc-shaped and serves to fix the contact element in a matching shape in the insulating body of a connector.
  • the diameter of the disk-shaped ring element is greater than the diameter of the pin contact.
  • the diameter of the disk-shaped ring element is equal to the diameter of the socket contact.
  • the ring element can also be shaped differently geometrically, for example rectangular, oval or square.
  • the FIG. 1 shows a perspective view of a pin contact.
  • the contact element 1 can be subdivided into a contact region 2 and a connection region 3.
  • the contact region 2 is formed as a pin contact 2a.
  • the connection region 3 is formed by a hollow cylinder 3 a, which contains an axial slot 4.
  • An insulating body, not shown here, which is provided for receiving contact pins, contains a recess into which the ring element 5 of the contact pin can be inserted. As a result, the contact pin is held in the insulating body.
  • FIG. 2 shows a perspective view of a socket contact.
  • the contact region 2 is formed from a hollow cylinder, in which wedge-shaped slots 2c are introduced, so that individual spring arms 2b are formed. The end portions of the spring arms are bent inward to the mating opening, so that a circular mating opening is formed.
  • the ring element 5 here essentially has the diameter of the bush-shaped contact region 2.
  • FIG. 3 shows a further variant of the socket contact.
  • the same parts bear the same reference numerals.
  • the connection region 3 of this female contact has, in addition to the axial slot 4, a second slot 6, which is oriented essentially transversely to the axial slot 4.
  • FIG. 4 shows a further variant of a pin contact.
  • the contact pin has a U-profile 7.
  • a wedge-shaped slot 6 ' is introduced in the U-profile 7.
  • the flanks 7a of the U-profile are chamfered.
  • flanks 7a may also be parallel or inwardly or outwardly inclined.
  • FIG. 5 shows a further variant of the pin contact.
  • the same parts bear the same reference numerals.
  • the contact and connection region is here separated via a surface element 5 ', which is essentially rectangular.
  • FIG. 6 shows a further variant of the socket contact.
  • the contact element 1 has a cable jacket connection region 8.
  • This area is likewise formed by a hollow cylinder which has an almost continuous axial slot 10.
  • the diameter of the hollow cylinder of the cable jacket connection region 8 is greater than the diameter of the hollow cylinder of the connection region 3.
  • the cable jacket connection region 8 is separated from the connection region by a slot 9, which runs perpendicular to the axial slots 4 and 10. In the cable jacket connection region 8 of the insulating sheathing of the conductor cable is fixed. This happens parallel to the crimping process.
  • the FIG. 7 shows a way to machine the contact elements, ie bring in the insulator of the connector.
  • the contact elements 1 are strung on a tape 11 in locking clips 12 and can be fed to a loading unit, not shown.
  • On the belt 11 can also be the contact elements according to the FIGS. 2 to 6 , or a mixture thereof, to be strung and processed.
  • FIG. 8 shows the perspective view of another contact element 1, which is designed as a pin contact.
  • a notch 5a is incorporated in the ring member 5.
  • this notch 5a engages a not shown nose between the locking clips 12 of the belt 11, so that the individual pin contacts are aligned on the same band 12. This ensures a trouble-free mechanical processing of the contact elements.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
  • Manufacturing Of Electrical Connectors (AREA)
  • Measuring Leads Or Probes (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Connector Housings Or Holding Contact Members (AREA)

Abstract

Die Erfindung betrifft ein elektrisches Kontaktelement, welches aus Vollmaterial ausgearbeitet ist, und welches als Stiftkontakt (2a) oder als Buchsenkontakt (2b) ausgebildet ist, und welches einen Steckbereich (2) und einen Anschlussbereich (3) zur Kontaktierung eines elektrischen Litzenleiters aufweist, wobei der Anschlussbereich (3) als Crimpanschluss ausgebildet ist, und wobei der Anschlussbereich (3) als Hohlzylinder (3a) geformt ist, der in axialen Richtung einen Schlitz (4) enthält.The invention relates to an electrical contact element, which is made of solid material, and which is designed as a pin contact (2a) or as a socket contact (2b), and which has a plug-in region (2) and a connection region (3) for contacting a stranded electrical conductor the connection region (3) is designed as a crimp connection, and wherein the connection region (3) is formed as a hollow cylinder (3a) which contains a slot (4) in the axial direction.

Description

Die Erfindung betrifft ein elektrisches Kontaktelement nach dem Oberbegriff des Anspruchs 1.The invention relates to an electrical contact element according to the preamble of claim 1.

Derartige Kontaktelemente werden benötigt, um eine elektrische Verbindung zwischen einem elektrischen Leiter, insbesondere einem Litzenleiter, und einem Anschlussende eines Stift- oder Buchsenkontakts herzustellen.Such contact elements are needed to establish an electrical connection between an electrical conductor, in particular a stranded conductor, and a terminal end of a pin or socket contact.

Zum Anschluss von Litzenleitern an ein elektrisches Kontaktelement wird häufig die Anschlusstechnik des Crimpens gewählt.For connecting stranded conductors to an electrical contact element, the connection technique of crimping is frequently selected.

Daher tragen die Kontaktelemente an ihrem Leiteranschlussende eine axiale Bohrung, in der das abisolierte Ende des Litzenleiters eingeführt und durch Crimpung festgequetscht wird.Therefore, the contact elements carry at their conductor terminal end an axial bore, in which the stripped end of the stranded conductor is inserted and squeezed by crimping.

Stand der TechnikState of the art

Die DE 88 040 92 U1 zeigt ein elektrisches Kontaktelement das in Stanz- Biegetechnik hergestellt wurde. Das elektrische Kontaktelement ist entweder als Stift- oder als Buchsenkontakt ausgebildet, wobei der Anschluss eines Litzenleiters an das Kontaktelement über eine Crimpung erfolgt. Der Crimpbereich des Kontaktelementes ist im wesentlichen als U-förmiges offenes Element ausgebildet. Dieser offene Crimpbereich hat den Vorteil, dass Litzenleiter unterschiedlichen Durchmessers an das gleiche Kontaktelement angeschlossen werden können.The DE 88 040 92 U1 shows an electrical contact element which was produced in stamping and bending technology. The electrical contact element is designed either as a pin contact or as a socket contact, the connection of a stranded conductor to the contact element being effected by crimping. The crimping region of the contact element is designed substantially as a U-shaped open element. This open crimping range has the advantage that stranded conductors of different diameters can be connected to the same contact element.

Nachteilig bei den Kontaktelementen die in Stanz- Biegetechnik hergestellt wurden, ist, dass ihr elektrischer Widerstand wegen der Materialarmut höher ist als bei Kontaktelementen aus Vollmaterial.A disadvantage of the contact elements that were produced in stamping and bending technology, is that their electrical resistance is higher because of the low material than in contact elements made of solid material.

Auch die US 5653 615 A1 schlägt einen Kontaktelement vor, das im Wesentlichen aus einem Hohlzylinder - also nicht massiv - gebildet ist.Also the US 5653 615 A1 suggests a contact element, which is essentially a hollow cylinder - that is not solid - formed.

Die EP 0 197 821 A1 zeigt ein Kontaktelement, welches aus drei verschiedenen Segmenten zusammengesetzt ist.The EP 0 197 821 A1 shows a contact element which is composed of three different segments.

Die DE 19 92 567 U zeigt ein Kontaktelement, als Stift- oder Buchsenkontakt ausgeführt, welches aus Vollmaterial hergestellt wird.The DE 19 92 567 U shows a contact element, designed as a pin or socket contact, which is made of solid material.

Die GB 346 008 A zeigt ein Kontaktelement, dessen Kontaktbereich maulschlüsselartig ausgeführt ist.The GB 346 008 A shows a contact element, the contact area is executed wrench-like.

Die US 5 653 615 A zeigt einen Stiftkontakt, dessen Anschlussbereich etwa mittig eine nach außen gewölbte Lamellenstruktur aufweist.The US 5,653,615 A shows a pin contact, the connection region has approximately centrally an outwardly curved lamellar structure.

Aus der DE 1 992 567 A1 sind Kontaktelemente aus Vollmaterial bekannt, die einen Crimpbereich zum Anschluss von Litzenleitern aufweisen. Derartige Kontaktelemente werden beispielsweise gefertigt, indem ein Drahtstück definierter Länge abgetrennt wird und die Konturen des Kontaktelementes aus diesem Drahtstück z.B. mithilfe der Drehtechnik herausgearbeitet werden. Allerdings ist bei diesen Kontaktelementen der Crimpbereich als Hohlzylinder mit einer geschlossenen Mantelfläche ausgebildet. Dieser Crimpbereich ist nur zum Anschluss eines elektrischen Leiterkabels bestimmten Durchmessers geeignet. So müssen beim Anschließen von Litzenleitern mit geringfügig unterschiedlichen Durchmessern, jeweils unterschiedliche Kontaktelemente aus Vollmaterial verwendet werden.From the DE 1 992 567 A1 contact elements made of solid material are known, which have a crimping area for connecting stranded conductors. Such contact elements are made, for example, by a piece of wire defined length is separated and the contours of the contact element are machined out of this piece of wire, for example using the rotation technique. However, in these contact elements of the crimp is formed as a hollow cylinder with a closed lateral surface. This crimping area is only suitable for connecting an electrical conductor cable of specific diameter. Thus, when connecting stranded conductors with slightly different diameters, each different contact elements made of solid material must be used.

Aufgabenstellungtask

Die Aufgabe der Erfindung besteht darin, ein elektrisches Kontaktelement vorzuschlagen, welches einen geringen elektrischen Widerstand aufweist und welches gleichzeitig zur elektrischen Kontaktierung von Litzenleitern unterschiedlichen Durchmessers geeignet ist.The object of the invention is to propose an electrical contact element, which has a low electrical resistance has and which is also suitable for electrical contacting of stranded conductors of different diameters.

Die Aufgabe wird durch die kennzeichnenden Merkmale des Anspruchs 1 gelöst.The object is solved by the characterizing features of claim 1.

Vorteilhafte Ausgestaltungen der Erfindung sind in den Unteransprüchen angegeben.Advantageous embodiments of the invention are specified in the subclaims.

Wie bereits erwähnt, wird das elektrische Kontaktelement aus Vollmaterial ausgearbeitet. Dazu wird beispielsweise die Drehtechnik auf Kurven- oder CNC-gesteuerten Maschinen verwendet. Für den Schlitz im Anschlussbereich des Kontaktelements sind aber auch spanende Arbeitsschritte notwendig.As already mentioned, the electrical contact element is made of solid material. For this purpose, for example, the turning technique is used on curved or CNC-controlled machines. For the slot in the connection region of the contact element but also cutting operations are necessary.

Der Kontaktbereich des Kontaktelementes kann sowohl als Stiftkontakt oder als Buchsenkontakt ausgebildet sein. Der Anschlussbereich ist als Crimpanschluss ausgebildet, um insbesondere Litzenleiter elektrisch kontaktieren zu können.The contact region of the contact element can be designed both as a pin contact or as a socket contact. The connection region is designed as a crimp connection in order to be able to contact in particular stranded conductors electrically.

Beim Crimpvorgang werden die Litzen eines anzuschließenden elektrischen Leiterkabels in den als Hohlzylinder ausgebildeten Anschlussbereich eingeführt. Der Hohlzylinder ist in axialer Richtung eingeschlitzt und ist dadurch seitlich geöffnet. Mithilfe eines geeigneten Crimpwerkzeugs wird eine Kraft auf die Mantelfläche des geschlitzten Hohlzylinders ausgeübt, so dass die gegenüberliegenden Schlitzkanten nach innen gebogen und eingerollt werden. Im bleibend verformten Anschlussbereich des Kontaktelementes befinden sich nunmehr die verdichteten Litzen des Leiterkabels.During the crimping process, the strands of an electrical conductor cable to be connected are inserted into the connecting region formed as a hollow cylinder. The hollow cylinder is slotted in the axial direction and is thereby opened laterally. Using a suitable crimping tool, a force is exerted on the lateral surface of the slotted hollow cylinder, so that the opposite slot edges are bent inward and rolled up. In the permanently deformed connection area of the contact element are now the compacted strands of the conductor cable.

Der geschlitzte Hohlzylinder ist zum Crimpanschluss von Litzenleitern verschiedenen Durchmessers geeignet. Ohne den axialen Schlitz würden sich im Crimp- bzw. Anschlussbereich bei Litzenleitern mit zu geringem Durchmesser Hohlräume bilden, die Oxidationsprozesse zulassen und die Kabelauszugskräfte negativ beeinflussen.The slotted hollow cylinder is suitable for crimping stranded conductors of different diameters. Without the axial slot would be in the crimp or terminal area in stranded conductors with too low Diameter form cavities that allow oxidation processes and negatively affect the cable pull-out forces.

Aufgrund des geschlitzten Anschlussbereichs des erfindungsgemäßen Kontaktelementes können Leiterkabel verschiedenen Durchmessers elektrisch kontaktiert werden. Außerdem wird das Kontaktelement während der Stromführung vorteilhafterweise weniger stark erwärmt als ein Kontaktelement, dass in Stänz-Biegetechnik hergestellt wurde.Due to the slotted connection region of the contact element according to the invention conductor cables of different diameters can be electrically contacted. In addition, the contact element during the current flow is advantageously less heated than a contact element that was produced in Stänz bending technique.

In einer vorteilhaften Ausführungsform der Erfindung beträgt die Länge des axialen Schlitzes im Anschlussbereich mehr als die Hälfte der Länge des Hohlzylinders. Anders gesagt, der Hohlzylinder ist in axialer Richtung um mehr als die Hälfte seiner Länge eingeschlitzt. Dadurch wird verhindert, dass beim Crimpvorgang Risse in der Mantelfläche des Hohlzylinders entstehen. Durch die Risse kann Luft (aber auch andere Medien) an die Litzen des Leiterkabels gelangen. Dadurch können Oxidationsprozesse ausgelöst werden, die die elektrischen Eigenschaften des elektrischen Kontaktes, beispielsweise den Widerstand, verschlechtern.In an advantageous embodiment of the invention, the length of the axial slot in the connection region is more than half the length of the hollow cylinder. In other words, the hollow cylinder is slotted in the axial direction by more than half its length. This prevents the formation of cracks in the lateral surface of the hollow cylinder during the crimping process. Through the cracks, air (but also other media) can reach the strands of the conductor cable. As a result, oxidation processes can be triggered which worsen the electrical properties of the electrical contact, for example the resistance.

In einer weiteren vorteilhaften Ausbildung des Kontaktelementes ist der Hohlzylinder des Anschlussbereichs, zusätzlich zum axialen Schlitz, zumindest ein weiteres mal eingeschlitzt. Dieser zweite Schlitz ist im wesentlichen 90° zum ersten, axialen Schlitz ausgerichtet. Anders gesagt: Der zweite Schlitz ist quer zur Achse des ersten, axialen Schlitzes ausgebildet.In a further advantageous embodiment of the contact element of the hollow cylinder of the connection area, in addition to the axial slot, at least one more times slit. This second slot is aligned substantially 90 ° to the first, axial slot. In other words, the second slot is formed across the axis of the first axial slot.

In der Regel wird die Grundfläche des Hohlzylinderkörpers im Anschlussbereich des Kontaktelementes kreisförmig geformt sein. Aber auch andere Geometrische Formen wie Rechteck, Quadrat, Ellipse oder Oval können vorteilhaft sein und mithilfe der Drehtechnik oder Frästechnik realisiert werden.As a rule, the base surface of the hollow cylindrical body will be circular in the connection region of the contact element. But other geometric shapes such as rectangle, square, ellipse or oval can also be advantageous and can be realized by means of turning or milling technology.

Vorteilhafterweise ist zwischen Steck- und Anschlussbereich ein Ringelement ausgebildet. Das Ringelement ist scheibenförmig geformt und dient dazu, das Kontaktelement in einer dazu passenden Ausformung im Isolierkörper eines Steckverbinders zu fixieren.Advantageously, a ring element is formed between plug and connection area. The ring element is disc-shaped and serves to fix the contact element in a matching shape in the insulating body of a connector.

Wenn das Kontaktelement als Stiftkontakt ausgebildet ist, ist der Durchmesser des scheibenförmigen Ringelements größer ist als der Durchmesser des Stiftkontaktes.If the contact element is designed as a pin contact, the diameter of the disk-shaped ring element is greater than the diameter of the pin contact.

Wenn das Kontaktelement allerdings als Stiftkontakt ausgebildet ist, ist der Durchmesser des scheibenförmigen Ringelements gleich dem Durchmesser des Buchsenkontaktes.However, if the contact element is designed as a pin contact, the diameter of the disk-shaped ring element is equal to the diameter of the socket contact.

Je nach Ausformung des Isolierkörpers des Steckverbinders, kann das Ringelement auch anders geometrisch geformt sein, beispielsweise rechteckig, oval oder quadratisch.Depending on the shape of the insulating body of the connector, the ring element can also be shaped differently geometrically, for example rectangular, oval or square.

Ausführungsbeispielembodiment

Ein Ausführungsbeispiel der Erfindung ist in den Zeichnungen dargestellt und wird im Folgenden näher erläutert. Es zeigen:

Fig. 1
eine perspektivische Darstellung eines Stiftkontaktes,
Fig. 2
eine perspektivische Darstellung eines Buchsenkontaktes,
Fig. 3
eine perspektivische Darstellung einer Variante des Buchsenkontaktes,
Fig. 4
eine perspektivische Darstellung einer Variante des Stiftkontaktes,
Fig. 5
eine perspektivische Darstellung einer weiteren Variante des Stiftkontaktes,
Fig. 6
eine perspektivische Darstellung einer weiteren Variante des Buchsenkontaktes,
Fig. 7
eine perspektivische Darstellung eines Bandes aufgereihter Stiftkontakte und
Fig. 8
eine perspektivische Darstellung einer weiteren Variante des Stiftkontaktes.
An embodiment of the invention is illustrated in the drawings and will be explained in more detail below. Show it:
Fig. 1
a perspective view of a pin contact,
Fig. 2
a perspective view of a socket contact,
Fig. 3
a perspective view of a variant of the socket contact,
Fig. 4
a perspective view of a variant of the pin contact,
Fig. 5
a perspective view of another variant of the pin contact,
Fig. 6
a perspective view of another variant of the socket contact,
Fig. 7
a perspective view of a band lined up pin contacts and
Fig. 8
a perspective view of another variant of the pin contact.

Die Figur 1 zeigt eine perspektivische Darstellung eines Stiftkontaktes. Das Kontaktelement 1 kann in einen Kontaktbereich 2 und einen Anschlussbereich 3 unterteilt werden. Der Kontaktbereich 2 ist als Stiftkontakt 2a ausgebildet. Der Anschlussbereich 3 wird durch einen Hohlzylinder 3a gebildet, der einen axialen Schlitz 4 enthält. Zwischen Kontakt- und Anschlussbereich befindet sich ein Ringelement 5. Ein hier nicht gezeigter Isolierkörper, der für die Aufnahme von Kontaktstiften vorgesehen ist, enthält eine Ausnehmung, in welche das Ringelement 5 des Kontaktstiftes eingelegt werden kann. Dadurch wird der Kontaktstift im Isolierkörper gehalten.The FIG. 1 shows a perspective view of a pin contact. The contact element 1 can be subdivided into a contact region 2 and a connection region 3. The contact region 2 is formed as a pin contact 2a. The connection region 3 is formed by a hollow cylinder 3 a, which contains an axial slot 4. There is a ring element 5 between the contact and connection area. An insulating body, not shown here, which is provided for receiving contact pins, contains a recess into which the ring element 5 of the contact pin can be inserted. As a result, the contact pin is held in the insulating body.

Die Figur 2 zeigt eine perspektivische Darstellung-eines Buchsenkontaktes. Der Kontaktbereich 2 wird aus einem Hohlzylinder gebildet, in welchen keilförmige Schlitze 2c eingebracht sind, so dass einzelne Federarme 2b gebildet werden. Die Endbereiche der Federarme sind einwärts zur Steckmündung abgebogen, so dass eine kreisrunde Steckmündung gebildet wird. Das Ringelement 5 hat hier im wesentlichen den Durchmesser des buchsenförmigen Kontaktbereichs 2.The FIG. 2 shows a perspective view of a socket contact. The contact region 2 is formed from a hollow cylinder, in which wedge-shaped slots 2c are introduced, so that individual spring arms 2b are formed. The end portions of the spring arms are bent inward to the mating opening, so that a circular mating opening is formed. The ring element 5 here essentially has the diameter of the bush-shaped contact region 2.

Die Figur 3 zeigt eine weitere Variante des Buchsenkontaktes. Gleiche Teile tragen auch die gleichen Bezugszeichen. Der Anschlussbereich 3 dieses Buchsenkontaktes weist zusätzlich zum axialen Schlitz 4 einen zweiten Schlitz 6 auf, der im wesentlichen quer zum axialen Schlitz 4 ausgerichtet ist.The FIG. 3 shows a further variant of the socket contact. The same parts bear the same reference numerals. The connection region 3 of this female contact has, in addition to the axial slot 4, a second slot 6, which is oriented essentially transversely to the axial slot 4.

Die Figur 4 zeigt eine weitere Variante eines Stiftkontaktes. Im Anschlussbereich 3 weist der Kontaktstift ein U-Profil 7 auf. In Richtung des Ringelements 5 und parallel dazu, ist im U-Profil 7 ein keilförmiger Schlitz 6' eingebracht. Die Flanken 7a des U-Profils sind angeschrägt.The FIG. 4 shows a further variant of a pin contact. In the connection area 3, the contact pin has a U-profile 7. In the direction of the ring element 5 and parallel thereto, a wedge-shaped slot 6 'is introduced in the U-profile 7. The flanks 7a of the U-profile are chamfered.

In anderen Ausführungsformen können die Flanken 7a auch parallel oder nach innen oder außen geneigt sein.In other embodiments, the flanks 7a may also be parallel or inwardly or outwardly inclined.

Die Figur 5 zeigt eine weitere Variante des Stiftkontaktes. Gleiche Teile tragen die gleichen Bezugszeichen. Anstatt eines Ringelements 5 wird hier der Kontakt- und Anschlussbereich über ein Flächenelement 5' getrennt, das im wesentlichen rechteckig ausgebildet ist.The FIG. 5 shows a further variant of the pin contact. The same parts bear the same reference numerals. Instead of a ring element 5, the contact and connection region is here separated via a surface element 5 ', which is essentially rectangular.

Die Figur 6 zeigt eine weitere Variante des Buchsenkontaktes. Gleiche Teile tragen dabei die gleichen Bezugszeichen. Zusätzlich zum Anschlussbereich 3 für Litzen weist das Kontaktelement 1 einen Kabelmantelanschlussbereich 8 auf. Dieser Bereich wird ebenfalls von einem Hohlzylinder gebildet, der einen nahezu durchgängigen axialen Schlitz 10 aufweist. Der Durchmesser des Hohlzylinders des Kabelmantelanschlussbereichs 8 ist größer als der Durchmesser des Hohlzylinders des Anschlussbereichs 3.The FIG. 6 shows a further variant of the socket contact. The same parts bear the same reference numerals. In addition to the connection region 3 for strands, the contact element 1 has a cable jacket connection region 8. This area is likewise formed by a hollow cylinder which has an almost continuous axial slot 10. The diameter of the hollow cylinder of the cable jacket connection region 8 is greater than the diameter of the hollow cylinder of the connection region 3.

Der Kabelmantelanschlussbereich 8 wird vom Anschlussbereich durch einen Schlitz 9 getrennt, der senkrecht zu den axialen Schlitzen 4 und 10 verläuft. Im Kabelmantelanschlussbereich 8 wird der isolierende Kabelmantel des Leiterkabels fixiert. Dies geschieht parallel zum Crimpvorgang.The cable jacket connection region 8 is separated from the connection region by a slot 9, which runs perpendicular to the axial slots 4 and 10. In the cable jacket connection region 8 of the insulating sheathing of the conductor cable is fixed. This happens parallel to the crimping process.

Die Figur 7 zeigt eine Möglichkeit die Kontaktelemente maschinell zu verarbeiten, d.h. in die Isolierkörper der Steckverbinder einzubringen. Die Kontaktelemente 1 werden auf ein Band 11 in Rastclips 12 aufgereiht und können so einer nicht gezeigten Bestückungseinheit zugeführt werden. Exemplarisch werden hier die Kontaktelemente gemäß Figur 1 gezeigt. Auf dem Band 11 können ebenfalls die Kontaktelemente gemäß der Figuren 2 bis 6, oder eine Mischung daraus, aufgereiht sein und verarbeitet werden.The FIG. 7 shows a way to machine the contact elements, ie bring in the insulator of the connector. The contact elements 1 are strung on a tape 11 in locking clips 12 and can be fed to a loading unit, not shown. As an example, the contact elements according to FIG. 1 shown. On the belt 11 can also be the contact elements according to the FIGS. 2 to 6 , or a mixture thereof, to be strung and processed.

Die Figur 8 zeigt die perspektivische Darstellung eines weiteren Kontaktelements 1, dass als Stiftkontakt ausgebildet ist. Im Ringelement 5 ist eine Einkerbung 5a eingearbeitet. In diese Einkerbung 5a greift eine Nicht gezeigte Nase zwischen den Rastclips 12 des Bandes 11, damit sich die einzelnen Stiftkontakte gleich ausgerichtet auf dem Band 12 befinden. Dadurch wird eine störungsfreie maschinelle Verarbeitung der Kontaktelemente gewährleistet.The FIG. 8 shows the perspective view of another contact element 1, which is designed as a pin contact. In the ring member 5, a notch 5a is incorporated. In this notch 5a engages a not shown nose between the locking clips 12 of the belt 11, so that the individual pin contacts are aligned on the same band 12. This ensures a trouble-free mechanical processing of the contact elements.

Elektrisches KontaktelementElectrical contact element

11
Kontaktelementcontact element
22
Kontaktbereich, 2a Kontaktstift, 2b Kontaktbuchse, 2c keilförmiger SchlitzContact area, 2a contact pin, 2b contact socket, 2c wedge-shaped slot
33
Anschlussbereich, 3a Hohlzylinder, 3b GrundflächeConnection area, 3a hollow cylinder, 3b base area
44
Axialer SchlitzAxial slot
55
Ringelement, 5a EinkerbungRing element, 5a notch
66
Zweiter Schlitz, 6' keilförmiger SchlitzSecond slot, 6 'wedge-shaped slot
77
U-Profil, 7a KanteU-profile, 7a edge
88th
KabelmantelanschlussbereichCable sheath terminal area
99
Dritter SchlitzThird slot
1010
Axialer Schlitz des KabelmantelanschlussbereichsAxial slot of the cable sheath connection area
1111
Bandtape
1212
Rastcliplocking clip

Claims (9)

Elektrisches Kontaktelement, welches aus Vollmaterial besteht, und welches als Stiftkontakt (2a) ausgebildet ist, und welches einen Steckbereich (2) und einen Anschlussbereich (3) aufweist, wobei der Anschlussbereich (3) als Crimpanschluss zur Kontaktierung eines elektrischen Leiters ausgebildet ist,
wobei der Anschlussbereich (3) als Hohlzylinder (3a) geformt ist, der in axialer Richtung einen Schlitz (4) enthält, und
wobei der Hohlzylinder (3a) zusätzlich zum axialen Schlitz (4) zumindest einen zweiten Schlitz (6) aufweist, der im wesentlichen in einem 90° Winkel zum axialen Schlitz (4) ausgebildet ist dadurch gekennzeichnet,
dass zwischen Kontaktbereich (2) und Anschlussbereich (3) ein Ringelement (5) angeordnet ist und
dass das Ringelement (5) eine Einkerbung (5a) aufweist.Electrical contact element which consists of solid material and which is designed as a pin contact (2a), and which has a plug-in region (2) and a connection region (3), wherein the connection region (3) is designed as a crimp connection for contacting an electrical conductor,
wherein the terminal portion (3) is formed as a hollow cylinder (3a) containing a slot (4) in the axial direction, and
the hollow cylinder (3a) having, in addition to the axial slot (4), at least one second slot (6) which is formed substantially at a 90 ° angle to the axial slot (4), characterized
in that a ring element (5) is arranged between contact region (2) and connection region (3), and
that the ring element (5) has a notch (5a). Elektrisches Kontaktelement nach Anspruch 1
dadurch gekennzeichnet, dass
der Hohlzylinder (3a) eine Grundfläche (3b) besitzt, die kreisförmig geformt ist.Electrical contact element according to claim 1
characterized in that
the hollow cylinder (3a) has a base (3b) which is circular in shape. Elektrisches Kontaktelement nach Anspruch 1
dadurch gekennzeichnet, dass
der Hohlzylinder (3a) eine Grundfläche (3b) besitzt, die elliptisch geformt ist.Electrical contact element according to claim 1
characterized in that
the hollow cylinder (3a) has a base (3b) which is elliptically shaped. Elektrisches Kontaktelement nach einem der vorstehenden Ansprüche dadurch gekennzeichnet, dass
die Länge des axialen Schlitzes (4) des Hohlzylinders (3a) mehr als die Hälfte der Länge des Hohlzylinders (3a) beträgt.Electrical contact element according to one of the preceding claims, characterized in that
the length of the axial slot (4) of the hollow cylinder (3a) is more than half the length of the hollow cylinder (3a). Elektrisches Kontaktelement nach einem der vorstehenden Ansprüche dadurch gekennzeichnet, dass
zwischen Steckbereich (2) und Anschlussbereich (3) ein Ringelement (5) ausgebildet ist.Electrical contact element according to one of the preceding claims, characterized in that
between plug-in area (2) and connection area (3) a ring element (5) is formed. Elektrisches Kontaktelement nach Anspruch 1
dadurch gekennzeichnet, dass
das Ringelement (5) scheibenförmig ausgebildet ist, und dass der Durchmesser des scheibenförmigen Ringelements (5) größer ist als der Durchmesser des Stiftkontaktes (2a).Electrical contact element according to claim 1
characterized in that
the ring element (5) is disk-shaped, and that the diameter of the disk-shaped ring element (5) is greater than the diameter of the pin contact (2a). Elektrisches Kontaktelement nach Anspruch 5
dadurch gekennzeichnet, dass
das Ringelement (5) scheibenförmig ausgebildet ist, und dass der Durchmesser des scheibenförmigen Ringelements (5) gleich dem Durchmesser des Buchsenkontaktes (2b) ist.Electrical contact element according to claim 5
characterized in that
the ring element (5) is disk-shaped, and that the diameter of the disk-shaped ring element (5) is equal to the diameter of the socket contact (2b). Elektrisches Kontaktelement nach Anspruch 5
dadurch gekennzeichnet, dass
das Ringelement (5) im wesentlichen als rechteckiges Flachstück (5') ausgebildet ist.Electrical contact element according to claim 5
characterized in that
the ring element (5) is designed substantially as a rectangular flat piece (5 '). Verfahren zur Herstellung eines Kontaktelements,
wobei ein Drahtstück definierter Länge abgetrennt wird und daraus die Konturen eines Kontaktelements (1) mithilfe der Drehtechnik ausgearbeitet werden,
wobei dabei ein Kontaktbereich (2) als Stiftkontakt oder Buchsenkontakt und ein Anschlussbereich (3) als Crimpanschluss entsteht wobei anschließend im Anschlussbereich (3) ein axialer Schlitz (4) mit einem spanenden Arbeitsschritt eingebracht wird und
wobei im Anschlussbereich (3) ein zweiter Schlitz (6) mit einem spanenden Arbeitsschritt eingebracht wird, der im wesentlichen in einem 90° Winkel zum axialen Schlitz (4) ausgebildet ist.Method for producing a contact element,
wherein a piece of wire of defined length is separated and from which the contours of a contact element (1) are worked out by means of the turning technique,
wherein a contact region (2) as a pin contact or socket contact and a connection region (3) as a crimp connection is formed, wherein subsequently in the connection region (3) an axial slot (4) is introduced with a cutting step and
wherein in the connection region (3) a second slot (6) is introduced with a machining step, which is formed substantially at a 90 ° angle to the axial slot (4).
EP17000261.2A 2010-05-12 2011-01-28 Electric contact element Withdrawn EP3196983A3 (en)

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DE102010020346A DE102010020346A1 (en) 2010-05-12 2010-05-12 Electrical contact element
EP11709858.2A EP2569825B1 (en) 2010-05-12 2011-01-28 Electrical contact element

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EP11709858.2A Division-Into EP2569825B1 (en) 2010-05-12 2011-01-28 Electrical contact element

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EP3196983A3 EP3196983A3 (en) 2017-10-04

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JP (2) JP2013528905A (en)
KR (1) KR20130028120A (en)
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DE (1) DE102010020346A1 (en)
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WO (1) WO2011141021A1 (en)

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RU2533165C2 (en) 2014-11-20
EP2569825A1 (en) 2013-03-20
RU2012153672A (en) 2014-06-20
CN102884682B (en) 2017-03-15
US20130052888A1 (en) 2013-02-28
KR20130028120A (en) 2013-03-18
WO2011141021A1 (en) 2011-11-17
CN102884682A (en) 2013-01-16
JP3195008U (en) 2014-12-25
US8834215B2 (en) 2014-09-16
DE102010020346A1 (en) 2011-11-17
JP2013528905A (en) 2013-07-11
EP2569825B1 (en) 2018-05-16
EP3196983A3 (en) 2017-10-04

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