EP2569825B1 - Electrical contact element - Google Patents

Electrical contact element Download PDF

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Publication number
EP2569825B1
EP2569825B1 EP11709858.2A EP11709858A EP2569825B1 EP 2569825 B1 EP2569825 B1 EP 2569825B1 EP 11709858 A EP11709858 A EP 11709858A EP 2569825 B1 EP2569825 B1 EP 2569825B1
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EP
European Patent Office
Prior art keywords
contact
hollow cylinder
contact element
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.)
Active
Application number
EP11709858.2A
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German (de)
French (fr)
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EP2569825A1 (en
Inventor
Thomas Wolting
Martin Schmidt
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
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Publication date
Application filed by Harting Electric GmbH and Co KG filed Critical Harting Electric GmbH and Co KG
Priority to EP17000261.2A priority Critical patent/EP3196983A3/en
Publication of EP2569825A1 publication Critical patent/EP2569825A1/en
Application granted granted Critical
Publication of EP2569825B1 publication Critical patent/EP2569825B1/en
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Anticipated expiration legal-status Critical

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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 DE 88 040 92 U1 shows an electrical contact element that 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 proposes 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.
  • the US 2004/0171314 A1 shows a female contact with an open crimp connection.
  • the EP 0 061 587 A2 shows a contact, which consists of solid material and which has wavy, axial slots in the contact area.
  • 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 intended only for connecting an electrical conductor cable Diameter suitable.
  • 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 and which is suitable at the same time for the 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 is designed 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 cavities would form in the crimp or terminal area in stranded conductors with too small diameter, which allow oxidation processes and adversely affect the cable pull-out forces.
  • the contact element during the current flow is advantageously less heated than a contact element that was produced in stamping and bending technique.
  • the length of the axial slot in the connection area is more than half the length of the hollow cylinder.
  • the hollow cylinder is in the axial direction more than half of its length slashed. 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 hollow cylinder of the connection area is, in addition to the axial slot, slotted at least once more.
  • 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 ring element can also be shaped differently geometrically, for example rectangular, oval or square.
  • the FIG. 1 shows an example 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. Between contact and connection area there is a ring element 5.
  • An insulating body, not shown here, for the inclusion of contact pins is provided, 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.
  • the FIG. 2 shows an example 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 the socket contact according to the invention.
  • 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.
  • the FIG. 4 shows another example 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. In other embodiments, the flanks 7a may also be parallel or inwardly or outwardly inclined.
  • FIG. 5 shows another example of a 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 another example 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 sheath terminal portion 8 is larger than that Diameter of the hollow cylinder of the connection area 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 an example 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.

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 that 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 ein Kontaktelement vor, das im Wesentlichen aus einem Hohlzylinder - also nicht massiv - gebildet ist.Also the US 5653 615 A1 proposes 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.

Die US 2004/0171314 A1 zeigt einen Buchsenkontakt mit einem offenen Crimpanschluss.The US 2004/0171314 A1 shows a female contact with an open crimp connection.

Die EP 0 061 587 A2 zeigt einen Kontakt, welcher aus Vollmaterial besteht und welcher im Kontaktbereich wellenförmige, axiale Schlitze aufweist.The EP 0 061 587 A2 shows a contact, which consists of solid material and which has wavy, axial slots in the contact area.

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 intended only for connecting an electrical conductor cable Diameter suitable. 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 and which is suitable at the same time for the 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 CNCgesteuerten 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 ist als Buchsenkontakt ausgebildet. Der Anschlussbereich ist als Crimpanschluss ausgebildet, um insbesondere Litzenleiter elektrisch kontaktieren zu können.The contact region of the contact element is designed 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 cavities would form in the crimp or terminal area in stranded conductors with too small diameter, which allow oxidation processes and adversely 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 Stanz-Biegetechnik hergestellt wurde. Die Länge des axialen Schlitzes im Anschlussbereich beträgt 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. Der Hohlzylinder des Anschlussbereichs ist, 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.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 stamping and bending technique. The length of the axial slot in the connection area is more than half the length of the hollow cylinder. In other words, the hollow cylinder is in the axial direction more than half of its length slashed. 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 hollow cylinder of the connection area is, in addition to the axial slot, slotted at least once more. 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.

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

Die Erfindung ist in der Zeichnung 3 dargestellt und wird im Folgenden näher erläutert. Es zeigen:

  • Fig. 1 ein Beispiel eines Stiftkontaktes,
  • Fig. 2 ein Beispiel eines Buchsenkontaktes,
  • Fig. 3 eine perspektivische Darstellung des Buchsenkontaktes gemäß der Erfindung,
  • Fig. 4 ein weiteres Beispiel eines Stiftkontaktes,
  • Fig. 5 ein weiteres Beispiel eines Stiftkontaktes,
  • Fig. 6 ein weiteres Beispiel des Buchsenkontaktes,
  • Fig. 7 ein Beispiel eines Bandes aufgereihter Stiftkontakte und
  • Fig. 8 ein weiteres Beispiel eines Stiftkontaktes.
The invention is illustrated in the drawing 3 and will be explained in more detail below. Show it:
  • Fig. 1 an example of a pin contact,
  • Fig. 2 an example of a socket contact,
  • Fig. 3 a perspective view of the socket contact according to the invention,
  • Fig. 4 another example of a pin contact,
  • Fig. 5 another example of a pin contact,
  • Fig. 6 another example of socket contact,
  • Fig. 7 an example of a band of lined pin contacts and
  • Fig. 8 another example of a pin contact.

Die Figur 1 zeigt ein Beispiel 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 an example 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. Between contact and connection area there is a ring element 5. An insulating body, not shown here, for the inclusion of contact pins is provided, 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 ein Beispiel 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 an example 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 das Buchsenkontakt gemäß der Erfindung. 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 the socket contact according to the invention. 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 ein weiteres Beispiel 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. In anderen Ausführungsformen können die Flanken 7a auch parallel oder nach innen oder außen geneigt sein.The FIG. 4 shows another example 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 other embodiments, the flanks 7a may also be parallel or inwardly or outwardly inclined.

Die Figur 5 zeigt ein weiteres Beispiel eines 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 another example of a 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 ein weiteres Beispiel 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 another example 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 sheath terminal portion 8 is larger than that Diameter of the hollow cylinder of the connection area 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 ein Beispiel 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 an example 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.

BezugszeichenlisteLIST OF REFERENCE NUMBERS 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 (3)

  1. Electrical contact element which is composed of solid material and which is designed as a socket contact (2b) 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 making contact with an electrical conductor, wherein wedge-shaped slots (2c) are introduced into the contact region (2), as a result of which spring arms (2b) are formed,
    • characterized in that the connection region (3) is in the form of a hollow cylinder (3a) which contains a slot (4) in the axial direction,
    • the length of the axial slot (4) of the hollow cylinder (3a) is more than half of the length of the hollow cylinder (3a),
    • in addition to the axial slot (4), the hollow cylinder (3a) has at least one second slot (6) which is formed substantially at a 90° angle to the axial slot (4).
  2. Electrical contact element according to Claim 1, characterized in that the hollow cylinder (3a) has an area (3b) in the form of a circle.
  3. Electrical contact element according to Claim 1, characterized in that the hollow cylinder (3a) has an area (3b) which has an elliptical shape.
EP11709858.2A 2010-05-12 2011-01-28 Electrical contact element Active EP2569825B1 (en)

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DE102010020346A DE102010020346A1 (en) 2010-05-12 2010-05-12 Electrical contact element
PCT/DE2011/075013 WO2011141021A1 (en) 2010-05-12 2011-01-28 Electrical contact element

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KR (1) KR20130028120A (en)
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Also Published As

Publication number Publication date
US8834215B2 (en) 2014-09-16
RU2012153672A (en) 2014-06-20
WO2011141021A1 (en) 2011-11-17
DE102010020346A1 (en) 2011-11-17
US20130052888A1 (en) 2013-02-28
EP3196983A3 (en) 2017-10-04
CN102884682A (en) 2013-01-16
RU2533165C2 (en) 2014-11-20
JP3195008U (en) 2014-12-25
CN102884682B (en) 2017-03-15
KR20130028120A (en) 2013-03-18
EP2569825A1 (en) 2013-03-20
JP2013528905A (en) 2013-07-11
EP3196983A2 (en) 2017-07-26

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