WO2024068558A1 - Hybrid contact element - Google Patents

Hybrid contact element Download PDF

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Publication number
WO2024068558A1
WO2024068558A1 PCT/EP2023/076414 EP2023076414W WO2024068558A1 WO 2024068558 A1 WO2024068558 A1 WO 2024068558A1 EP 2023076414 W EP2023076414 W EP 2023076414W WO 2024068558 A1 WO2024068558 A1 WO 2024068558A1
Authority
WO
WIPO (PCT)
Prior art keywords
contact element
contact
circuit board
connection area
conductor
Prior art date
Application number
PCT/EP2023/076414
Other languages
German (de)
French (fr)
Inventor
Markus Friesen
Felix Loske
Original Assignee
Harting Ag
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 Ag filed Critical Harting Ag
Publication of WO2024068558A1 publication Critical patent/WO2024068558A1/en

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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
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/50—Fixed connections
    • H01R12/51—Fixed connections for rigid printed circuits or like structures
    • H01R12/55—Fixed connections for rigid printed circuits or like structures characterised by the terminals
    • H01R12/58—Fixed connections for rigid printed circuits or like structures characterised by the terminals terminals for insertion into holes
    • H01R12/585—Terminals having a press fit or a compliant portion and a shank passing through a hole in the printed circuit board
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/50—Fixed connections
    • H01R12/51—Fixed connections for rigid printed circuits or like structures
    • H01R12/53—Fixed connections for rigid printed circuits or like structures connecting to cables except for flat or ribbon cables
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
    • H01R11/03—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the relationship between the connecting locations
    • H01R11/05—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the relationship between the connecting locations the connecting locations having different types of direct connections
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/70—Coupling devices
    • H01R12/7076—Coupling devices for connection between PCB and component, e.g. display
    • 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
    • H01R13/15—Pins, blades or sockets having separate spring member for producing or increasing contact pressure
    • H01R13/17—Pins, blades or sockets having separate spring member for producing or increasing contact pressure with spring member on the pin
    • 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
    • H01R4/183—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 for cylindrical elongated bodies, e.g. cables having circular cross-section

Definitions

  • the invention is based on a contact element according to the preamble of independent claim 1.
  • the invention further relates to a method for mounting a contact element on a circuit board according to the preamble of independent claim 10.
  • Such contact elements are required to establish an electrical connection between an electrical conductor, in particular a stranded conductor, and a connection end of a pin or socket contact.
  • Crimping is often used to connect stranded conductors to an electrical contact element.
  • contact elements are also used for mounting on circuit boards, for example to connect connectors or electronic components to the circuit board.
  • the electrical contact element is designed either as a pin or as a socket contact, with a stranded conductor being connected to the contact element via a crimp.
  • the crimping area of the contact element is essentially designed as a U-shaped open element. This open crimping area has the advantage that stranded conductors of different diameters can be connected to the same contact element.
  • the DE 10 2010 020 346 A1 shows a contact element which is made from solid material in a machining process. With such Contact elements can transmit high currents. This contact element is also connected to a conductor using crimping technology.
  • a specialist selects a suitable contact element for the respective area of application.
  • the object of the invention is to propose a contact element which enables a more compact design of electrical or electronic devices and better protection, in particular against overvoltages, of these devices.
  • the subject matter of the invention makes it possible to integrate electronic components into a connector that is intended for mounting on a circuit board.
  • the electronic components are, for example, diodes for generating overvoltage protection.
  • the contact element according to the invention is intended for mounting on a circuit board.
  • Several contact elements according to the invention can be mounted on the circuit board and surrounded by an insulating body. Such an arrangement would then serve as a slot for a connector or another component.
  • the insulating body For example, it is the insulating body of an otherwise known connector.
  • the contact element is essentially cylindrical.
  • the contact element is preferably designed to be essentially rotationally symmetrical.
  • the contact element according to the invention has a contact area for electrically contacting a mating contact element.
  • the contact area can be designed like a socket or pin.
  • the contact area has axially projecting contact lamellae, which are preferably bent radially inwards at the ends.
  • the circumferential end of the contact lamellae forms the so-called contact tip of the contact element.
  • the area is cylindrical and preferably conical or rounded at its contact tip.
  • the contact element has a connection area for parallel electrical contacting of an electrical conductor and a conductor track of the circuit board.
  • parallel here means that at the same time the circuit board and the electrical conductor are in electrically conductive contact with the contact element.
  • connection area is divided into two parts.
  • a first part is intended for electrical contacting of the electrical conductor and a second part is intended for electrical contacting of the conductor track of the circuit board.
  • the first and second parts of the connection area of the contact element are separated from each other by a circumferential ring.
  • the ring can be designed in different geometrical ways, as for example, as shown in DE 10 2010 020 346 A1.
  • the first part is arranged closer to the contact tip of the contact element than the second part.
  • the contact tip forms one end and the second part of the connection area forms the other end of the contact element.
  • the first part of the connection area is designed as a crimp connection.
  • This connection technology is very reliable.
  • the second part of the connection area has at least one spring element.
  • the spring force of the at least one spring element is directed radially outwards.
  • the second part of the connection area of the contact element can be clamped in the contact opening of the circuit board.
  • the contact opening is surrounded by an electrically conductive material, which in turn is electrically connected to at least one conductor track of the circuit board. In this way, electrical contact is established between the contact element and the at least one conductor track of the printed circuit board.
  • the spring element is a circumferential spring ring.
  • one or more leaf springs can also be provided, which are supported on circumferential barks that enclose the second part of the connection area.
  • the circuit board has at least one contact opening that is electrically connected to at least one conductor track on the circuit board. i) First, an electrical conductor is pushed through the at least one contact opening on the circuit board. ii) The end of the conductor is then stripped using a suitable tool. When stripping, the conductor sheath of the sheath is removed at the end and the so-called strand of the conductor is exposed.
  • Process steps i and ii could also be swapped.
  • iii) The stripped end of the conductor is then crimped or crimped to a first part of a connection area of the contact element.
  • a second part of the connection area of the contact element is inserted into the contact opening of the circuit board and is preferably fixed therein by a clamping action of a spring element.
  • Fig. 1 is a sectional view of a contact element according to the invention.
  • Fig. 2 is a sectional view of a circuit board, an insulating body and contact elements according to the invention arranged therein.
  • Figure 1 shows a sectional view of a contact element 1 according to the invention with an electrical conductor 2 connected to it.
  • the contact element 1 is essentially cylindrical.
  • the contact element 1 has a contact area KB, which in this embodiment is pin-shaped (contact pin).
  • a socket-shaped (contact socket) design would also be possible.
  • the contact element 1 has a two-part connection area AB.
  • the connection area AB contains an axial bore into which the strands 3 of the connected conductor 2 are inserted.
  • connection area AB1 is designed as a crimping area for electrical contact with the electrical conductor. During crimping, the jacket of the contact element 1 is pressed against the strands 3 of the electrical conductor 2 in the crimping area.
  • connection area AB also has a second part AB2.
  • the first and second parts of the connection area AB are separated from one another by a circumferential ring 5.
  • the connection area AB is delimited overall by two further rings 5', 5".
  • the ring 5 or the rings 5, 5', 5" can be used in particular to fix the contact element 1 in an insulating body 6.
  • connection area AB2 is intended for electrical contacting of a conductor track (not shown) of a circuit card 4.
  • the second part of the connection area has AB2 circumferential spring plate 7, which is bent radially outwards in the basic shape and which is arranged between the rings 5, 5 'or is supported on them.
  • the spring force of the spring plate 7 is directed radially outwards.
  • the second part of the connection area AB2 is introduced into a contact opening of the circuit board 4.
  • the contact element 1 is fixed to the circuit board 1 or in its contact opening by the radially outward spring force of the spring plate 7.
  • the contact opening is, as already described above, covered with a conductive material, which in turn is electrically connected to at least one conductor track of the circuit board 4.
  • the contact element 1 is thus electrically connected to the circuit board 4 (or to its contact opening) and at the same time to an electrical conductor 2.
  • the above-described electrical conductor 2 may be a conductor of a multi-core electrical cable (not shown). Several conductors 2 of the cable can then each be connected to a contact element 1 according to the invention, as can be seen implicitly in FIG. 2 or is indicated in FIG.
  • the insulating body 6 can be used as a slot for a plug connector and/or as an interface for an electronic component (not shown). Further components, such as diodes and/or sensors, can also be integrated into the insulating body 6.

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  • Coupling Device And Connection With Printed Circuit (AREA)

Abstract

The invention relates to a contact element (1) to be mounted on a printed circuit board (4), wherein the contact element (1) has a contact region (KB) (1) for making electrical contact with a mating contact element, wherein the contact element (1) has a connection region (AB) with which electrical contact can be made simultaneously by an electrical conductor (2) and a conductor track of the printed circuit board (4). The invention also relates to a method for mounting a contact element (1) on a printed circuit board (4), wherein the printed circuit board (4) has at least one contact opening which is electrically conductively connected to at least one conductor track of the printed circuit board (4), i) wherein an electrical conductor (2) is pushed through the contact opening in the printed circuit board (4), ii) wherein the end of the electrical conductor (2) is stripped of insulation, iii) wherein the stripped end of the electrical conductor (2) is crimped with a first part of a connection region (AB1) of the contact element (1), iv) and wherein a second part of the connection region (AB2) of the contact element (1) is pushed into the contact opening in the printed circuit board (4).

Description

Beschreibung Description
Die Erfindung geht aus von einem Kontaktelement nach der Gattung des unabhängigen Anspruchs 1 . Die Erfindung bezieht sich weiterhin auf ein Verfahren zur Montage eines Kontaktelements auf einer Leiterkarte nach der Gattung des unabhängigen Anspruchs 10. The invention is based on a contact element according to the preamble of independent claim 1. The invention further relates to a method for mounting a contact element on a circuit board according to the preamble of independent claim 10.
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 required to establish an electrical connection between an electrical conductor, in particular a stranded conductor, and a connection end of a pin or socket contact.
Zum Anschluss von Litzenleitern an ein elektrisches Kontaktelement wird häufig die Anschlusstechnik des Crimpens gewählt. Crimping is often used to connect stranded conductors to an electrical contact element.
Kontaktelemente werde jedoch auch zur Montage auf Leiterkarten verwendet, um beispielsweise Steckverbinder oder elektronische Bauteile auf der Leiterkarte anzuschließen. However, contact elements are also used for mounting on circuit boards, for example to connect connectors or electronic components to the circuit board.
Stand der Technik State 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. DE 88 040 92 U1 shows an electrical contact element that was manufactured using a punching and bending technique. The electrical contact element is designed either as a pin or as a socket contact, with a stranded conductor being connected to the contact element via a crimp. The crimping area of the contact element is essentially designed as a U-shaped open element. This open crimping area has the advantage that stranded conductors of different diameters can be connected to the same contact element.
Die DE 10 2010 020 346 A1 zeigt ein Kontaktelement, welches in einem spanenden Arbeitsprozess aus Vollmaterial hergestellt ist. Mit derartigen Kontaktelementen lassen sich hohe Ströme übertragen. Auch dieses Kontaktelement wird mithilfe der Crimptechnik an einen Leiter angeschlossen. The DE 10 2010 020 346 A1 shows a contact element which is made from solid material in a machining process. With such Contact elements can transmit high currents. This contact element is also connected to a conductor using crimping technology.
Die DE 10 2019 119 588 A1 zeigt ein Kontaktelement, welches zur Montage in einer Kontaktöffnung einer Leiterkarte vorgesehen ist. DE 10 2019 119 588 A1 shows a contact element which is intended for mounting in a contact opening of a printed circuit board.
Ein Fachmann wählt für das jeweilige Einsatzgebiet ein passendes Kontaktelement aus. A specialist selects a suitable contact element for the respective area of application.
Aufgabenstellung Task
Die Aufgabe der Erfindung besteht darin ein Kontaktelement vorzuschlagen, welches eine kompaktere Bauweise von elektrischen bzw. elektronischen Geräten und einen besseren Schutz, insbesondere vor Überspannungen, dieser Geräte ermöglicht. The object of the invention is to propose a contact element which enables a more compact design of electrical or electronic devices and better protection, in particular against overvoltages, of these devices.
Die Aufgabe wird durch den Gegenstand des unabhängigen Anspruchs 1 gelöst. The problem is solved by the subject matter of independent claim 1.
Durch den Erfindungsgegenstand ist es möglich elektronische Bauteile in einen Steckverbinder zu integrieren, der für die Montage auf einer Leiterkarte vorgesehen ist. Bei den elektronischen Bauteilen handelt es sich beispielsweise um Dioden zur Erzeugung eines Überspannungsschutzes. The subject matter of the invention makes it possible to integrate electronic components into a connector that is intended for mounting on a circuit board. The electronic components are, for example, diodes for generating overvoltage protection.
Vorteilhafte Ausgestaltungen der Erfindung sind in den Unteransprüchen und der folgenden Beschreibung angegeben. Advantageous embodiments of the invention are specified in the subclaims and the following description.
Das erfindungsgemäße Kontaktelement ist zur Montage auf einer Leiterkarte vorgesehen. Dabei können mehrere erfindungsgemäße Kontaktelemente auf der Leiterkarte montiert und von einem Isolierkörper umgeben sein. Eine solche Anordnung würde dann als Steckplatz für einen Steckverbinder oder eines anderen Bauteils dienen. Bei dem Isolierkörper handelt es sich beispielsweise um den Isolierkörper eines ansonsten bekannten Steckverbinders. The contact element according to the invention is intended for mounting on a circuit board. Several contact elements according to the invention can be mounted on the circuit board and surrounded by an insulating body. Such an arrangement would then serve as a slot for a connector or another component. In the case of the insulating body For example, it is the insulating body of an otherwise known connector.
Vorteilhafterweise ist das Kontaktelement im Wesentlichen zylinderförmig ausgebildet. Vorzugsweise ist das Kontaktelement im Wesentlichen rotationssymmetrisch ausgestaltet. Advantageously, the contact element is essentially cylindrical. The contact element is preferably designed to be essentially rotationally symmetrical.
Das erfindungsgemäße Kontaktelement weist einen Kontaktbereich zur elektrischen Kontaktierung eines Gegenkontaktelements auf. Der Kontaktbereich kann buchsen- oder stiftartig ausgeführt ist. Im Falle der buchsenartigen Ausgestaltung, weist der Kontaktbereich axial abstehende Kontaktlamellen auf die vorzugsweise endseitig radial nach innen gebogen sind. Das umlaufende Ende der Kontaktlamellen bildet in diesem Fall die so genannte Kontaktspitze des Kontaktelements aus. Im Falle der stiftartigen Ausgestaltung ist der Bereich zylinderförmig ausgestaltet und vorzugsweise an seiner Kontaktspitze konisch bzw. abgerundet ausgebildet. The contact element according to the invention has a contact area for electrically contacting a mating contact element. The contact area can be designed like a socket or pin. In the case of the socket-like design, the contact area has axially projecting contact lamellae, which are preferably bent radially inwards at the ends. In this case, the circumferential end of the contact lamellae forms the so-called contact tip of the contact element. In the case of the pin-like design, the area is cylindrical and preferably conical or rounded at its contact tip.
Das Kontaktelement weist einen Anschlussbereich zur parallelen elektrischen Kontaktierung eines elektrischen Leiters und einer Leiterbahn der Leiterkarte aufweist. Mit dem Begriff „parallel“ ist hier gemeint, dass gleichzeitig die Leiterkarte und der elektrische Leiter mit dem Kontaktelement elektrisch leitend kontaktiert ist. The contact element has a connection area for parallel electrical contacting of an electrical conductor and a conductor track of the circuit board. The term “parallel” here means that at the same time the circuit board and the electrical conductor are in electrically conductive contact with the contact element.
Vorzugsweise ist der Anschlussbereich zweigeteilt. Ein erster Teil ist dabei zur elektrischen Kontaktierung des elektrischen Leiters und ein zweiter Teil ist dabei zur elektrischen Kontaktierung der Leiterbahn der Leiterkarte vorgesehen. Hierdurch kann eine platzsparende Bauweise auf der Leiterkarte erreicht werden, da nicht zwei unterschiedliche Kontaktelemente parallel verwendet werden müssen. Preferably, the connection area is divided into two parts. A first part is intended for electrical contacting of the electrical conductor and a second part is intended for electrical contacting of the conductor track of the circuit board. This allows a space-saving design on the circuit board to be achieved, since two different contact elements do not have to be used in parallel.
Vorteilhafterweise sind der erste und der zweite Teil des Anschlussbereichs des Kontaktelements über einen umlaufenden Ring voneinander getrennt. Der Ring kann geometrisch unterschiedlich ausgeführt sein, wie es beispielsweise in der DE 10 2010 020 346 A1 gezeigt ist. Der erste Teil ist dabei näher an der Kontaktspitze des Kontaktelements angeordnet als der zweite Teil. Die Kontaktspitze bildet das eine Ende und der zweite Teil des Anschlussbereichs das andere Ende des Kontaktelements. Advantageously, the first and second parts of the connection area of the contact element are separated from each other by a circumferential ring. The ring can be designed in different geometrical ways, as for example, as shown in DE 10 2010 020 346 A1. The first part is arranged closer to the contact tip of the contact element than the second part. The contact tip forms one end and the second part of the connection area forms the other end of the contact element.
Bevorzugterweise ist der erste Teil des Anschlussbereichs als Crimpanschluss ausgebildet. Diese Anschlusstechnik ist sehr zuverlässig. Preferably, the first part of the connection area is designed as a crimp connection. This connection technology is very reliable.
Vorzugsweise weist der zweite Teil des Anschlussbereichs zumindest ein Federelement auf. Vorteilshafterweise ist die Federkraft des zumindest einen Federelements radial nach außen gerichtet. Dadurch kann der zweite Teil des Anschlussbereichs des Kontaktelements in der Kontaktöffnung der Leiterkarte verklemmt werden. Die Kontaktöffnung ist innerhalb umlaufend mit einem elektrisch leitfähigem Material beaufschlagt, welches wiederum mit zumindest einer Leiterbahn der Leiterkarte elektrisch leitend verbunden ist. So wird ein elektrischer Kontakt zwischen dem Kontaktelement und der zumindest einen Leiterbahn der Leiterkarte hergestellt. Preferably, the second part of the connection area has at least one spring element. Advantageously, the spring force of the at least one spring element is directed radially outwards. As a result, the second part of the connection area of the contact element can be clamped in the contact opening of the circuit board. The contact opening is surrounded by an electrically conductive material, which in turn is electrically connected to at least one conductor track of the circuit board. In this way, electrical contact is established between the contact element and the at least one conductor track of the printed circuit board.
In einer bevorzugten Ausführungsform der Erfindung handelt es sich bei dem Federelement um einen umlaufenden Federring. Alternativ können auch eine oder mehrere Blattfedern vorgesehen sein, die sich an endseitig umlaufenden Rinden, die den zweiten Teil des Anschlussbereichs einschließen, abstützen. In a preferred embodiment of the invention, the spring element is a circumferential spring ring. Alternatively, one or more leaf springs can also be provided, which are supported on circumferential barks that enclose the second part of the connection area.
Im Folgenden wird beschrieben wie ein vorzugsweise wie oben beschriebenes Kontaktelement auf einer Leiterkarte montiert wird. Die einzelnen Verfahrensschritte sind dabei mit römischen Zahlen durchnummeriert. Die Reihenfolge der Verfahrensschritte ist jedoch nicht auf die angeführte Reihenfolge beschränkt, sondern kann sinnvoll permutiert werden. Die Leiterkarte weist dabei zumindest eine Kontaktöffnung auf, die elektrisch leitend mit zumindest einer Leiterbahn der Leiterkarte verbunden ist. i) Zunächst wird ein elektrischer Leiter durch die zumindest eine Kontaktöffnung der Leiterkarte durchgeschoben. ii) Anschließend wird das Ende des Leiters mit einem geeigneten Werkzeug abisoliert. Beim Abisolieren wird endseitig der Leitermantel des Mantels entfernt und die so genannte Litze des Leiters freigelegt. The following describes how a contact element, preferably as described above, is mounted on a circuit board. The individual process steps are numbered with Roman numerals. The order of the process steps is not limited to the order given, however, but can be permuted as appropriate. The circuit board has at least one contact opening that is electrically connected to at least one conductor track on the circuit board. i) First, an electrical conductor is pushed through the at least one contact opening on the circuit board. ii) The end of the conductor is then stripped using a suitable tool. When stripping, the conductor sheath of the sheath is removed at the end and the so-called strand of the conductor is exposed.
Die Verfahrensschritte i und ii könnten auch getauscht werden. iii) Danach wird das abisolierte Ende des Leiters an einen ersten Teil eines Anschlussbereichs des Kontaktelements vercrimpt bzw. gecrimpt. iv) Dann wird ein zweiter Teil des Anschlussbereichs des Kontaktelements in die Kontaktöffnung der Leiterkarte eingeschoben und darin vorzugsweise durch eine Klemmwirkung eines Federelements fixiert wird. Process steps i and ii could also be swapped. iii) The stripped end of the conductor is then crimped or crimped to a first part of a connection area of the contact element. iv) Then a second part of the connection area of the contact element is inserted into the contact opening of the circuit board and is preferably fixed therein by a clamping action of a spring element.
Ausführungsbeispiel Example
Ein Ausführungsbeispiel der Erfindung ist in den Zeichnungen dargestellt und wird im Folgenden näher erläutert. Es zeigen: An exemplary embodiment of the invention is shown in the drawings and is explained in more detail below. Show it:
Fig. 1 eine Schnittdarstellung eines erfindungsgemäßen Kontaktelements und Fig. 1 is a sectional view of a contact element according to the invention and
Fig. 2 eine Schnittdarstellung einer Leiterkarte, eines Isolierkörpers und darin angeordnete erfindungsgemäße Kontaktelemente. Fig. 2 is a sectional view of a circuit board, an insulating body and contact elements according to the invention arranged therein.
Die Figuren enthalten teilweise vereinfachte, schematische Darstellungen.The figures partly contain simplified, schematic representations.
Zum Teil werden für gleiche, aber gegebenenfalls nicht identische Elemente identische Bezugszeichen verwendet. Verschiedene Ansichten gleicher Elemente könnten unterschiedlich skaliert sein. Richtungsangaben wie beispielsweise „links“, „rechts“, „oben“ und „unten“ sind mit Bezug auf die jeweilige Figur zu verstehen und können in den einzelnen Darstellungen gegenüber dem dargestellten Objekt variieren. In some cases, for identical but possibly not identical elements identical reference symbols are used. Different views of the same elements may be scaled differently. Directional indications such as "left", "right", "top" and "bottom" are to be understood with reference to the respective figure and may vary in the individual representations compared to the object shown.
Die Figur 1 zeigt eine Schnittdarstellung eines erfindungsgemäßen Kontaktelements 1 mit einem daran angeschlossenen elektrischen Leiter 2. Das Kontaktelement 1 ist im Wesentlichen zylinderförmig ausgestaltet. Figure 1 shows a sectional view of a contact element 1 according to the invention with an electrical conductor 2 connected to it. The contact element 1 is essentially cylindrical.
Das Kontaktelement 1 weist einen Kontaktbereich KB auf, der in diesem Ausführungsbeispiel stiftförmig (Kontaktstift) ausgeführt ist. Alternativ wäre auch eine buchsenförmige (Kontaktbuchse) Ausführung möglich. The contact element 1 has a contact area KB, which in this embodiment is pin-shaped (contact pin). Alternatively, a socket-shaped (contact socket) design would also be possible.
Das Kontaktelement 1 weist einen zweiteiligen Anschlussbereich AB auf. Der Anschlussbereich AB beinhaltet eine axiale Bohrung, in welche die Litzen 3 des angeschlossenen Leiters 2 eingeschoben sind. The contact element 1 has a two-part connection area AB. The connection area AB contains an axial bore into which the strands 3 of the connected conductor 2 are inserted.
Ein erster Teil des Anschlussbereichs AB1 ist zur elektrischen Kontaktierung des elektrischen Leiters als Crimpbereich ausgeführt. Beim Crimpen wird bekanntermaßen der Mantel des Kontaktelements 1 im Crimpbereich gegen die Litzen 3 des elektrischen Leiters 2 gepresst. A first part of the connection area AB1 is designed as a crimping area for electrical contact with the electrical conductor. During crimping, the jacket of the contact element 1 is pressed against the strands 3 of the electrical conductor 2 in the crimping area.
Der Anschlussbereich AB weist weiterhin einen zweiten Teil AB2 auf. Der erste und zweite Teil des Anschlussbereichs AB werden durch einen umlaufenden Ring 5 voneinander getrennt. Der Anschlussbereich AB wird insgesamt durch zwei weitere Ringe 5‘, 5“ eingegrenzt. Der Ring 5 bzw. die Ringe 5, 5‘, 5“ können insbesondere zur Fixierung des Kontaktelements 1 in einem Isolierkörper 6 dienen. The connection area AB also has a second part AB2. The first and second parts of the connection area AB are separated from one another by a circumferential ring 5. The connection area AB is delimited overall by two further rings 5', 5". The ring 5 or the rings 5, 5', 5" can be used in particular to fix the contact element 1 in an insulating body 6.
Der zweite Teil des Anschlussbereichs AB2 ist zur elektrischen Kontaktierung einer Leiterbahn (nicht gezeigt) einer Leiterkarte 4 vorgesehen. Dazu weist der zweite Teil des Anschlussbereichs AB2 ein umlaufendes, ein in der Grundform radial nach außen gebogenes Federblech 7 auf, das zwischen den Ringen 5, 5‘ angeordnet ist bzw. sich daran abstützt. Die Federkraft des Federblechs 7 ist radial nach außen gerichtet. The second part of the connection area AB2 is intended for electrical contacting of a conductor track (not shown) of a circuit card 4. For this purpose, the second part of the connection area has AB2 circumferential spring plate 7, which is bent radially outwards in the basic shape and which is arranged between the rings 5, 5 'or is supported on them. The spring force of the spring plate 7 is directed radially outwards.
Der zweite Teil des Anschlussbereichs AB2 wird in eine Kontaktöffnung der Leiterkarte 4 eingeführt. Durch die radial nach außen gerichtete Federkraft des Federblechs 7, wird das Kontaktelement 1 an der Leiterkarte 1 bzw. in dessen Kontaktöffnung fixiert. Die Kontaktöffnung ist, wie bereits oben beschrieben, mit einem leitenden Material überzogen, welches wiederum mit zumindest einer Leiterbahn der Leiterkarte 4 elektrisch leitend verbunden ist. Das Kontaktelement 1 ist somit an der Leiterkarte 4 (bzw. mit dessen Kontaktöffnung) und gleichzeitig mit einem elektrischen Leiter 2 elektrisch leitend verbunden. The second part of the connection area AB2 is introduced into a contact opening of the circuit board 4. The contact element 1 is fixed to the circuit board 1 or in its contact opening by the radially outward spring force of the spring plate 7. The contact opening is, as already described above, covered with a conductive material, which in turn is electrically connected to at least one conductor track of the circuit board 4. The contact element 1 is thus electrically connected to the circuit board 4 (or to its contact opening) and at the same time to an electrical conductor 2.
Der oben beschriebene elektrische Leiter 2 kann ein Leiter eines mehradrigen elektrischen Kabels (nicht gezeigt) sein. Mehrere Leiter 2 des Kabels können dann jeweils an einem erfindungsgemäßen Kontaktelement 1 angeschlossen sein, wie es implizit aus Figur 2 hervorgeht bzw. in Figur 2 angedeutet ist. The above-described electrical conductor 2 may be a conductor of a multi-core electrical cable (not shown). Several conductors 2 of the cable can then each be connected to a contact element 1 according to the invention, as can be seen implicitly in FIG. 2 or is indicated in FIG.
Der Isolierkörper 6 kann als Steckplatz für einen Steckverbinder und/oder als Schnittstelle für ein elektronisches Bauteil (nicht gezeigt) genutzt werden. In den Isolierkörper 6 können auch weitere Bauteile, wie beispielsweise Dioden und/oder Sensoren, integriert sein. The insulating body 6 can be used as a slot for a plug connector and/or as an interface for an electronic component (not shown). Further components, such as diodes and/or sensors, can also be integrated into the insulating body 6.
Bezugszeichenliste List of reference symbols
Kontaktelement Contact element
Elektrischer Leiter Electrical conductor
3 Litzen 3 strands
4 Leiterkarte 4 Circuit board
5 Umlaufender Ring 5 Circumferential ring
6 Isolierkörper 6 insulators
7 Federblech 7 spring plate
AB Anschlussbereich AB connection area
AB1 : Erster Teil des AnschlussbereichsAB1: First part of the connection area
AB2: Zweiter Teil des AnschlussbereichsAB2: Second part of the connection area
KB Kontaktbereich KB contact area

Claims

Ansprüche Kontaktelement (1 ) zur Montage auf einer Leiterkarte (4), wobei das Kontaktelement (1) einen Kontaktbereich (KB) (1) zur elektrischen Kontaktierung eines Gegenkontaktelements aufweist, wobei das Kontaktelement (1) einen Anschlussbereich (AB) aufweist, der gleichzeitig mit einem elektrischen Leiter (2) und einer Leiterbahn der Leiterkarte (4) elektrisch kontaktierbar ist. Kontaktelement (1) nach Anspruch 1 dadurch gekennzeichnet, dass das Kontaktelement (1) im Wesentlichen zylinderförmig ausgebildet ist. Kontaktelement (1 ) nach einem der vorstehenden Ansprüche dadurch gekennzeichnet, dass der Kontaktbereich (KB) buchsen- oder stiftartig ausgeführt ist. Kontaktelement (1 ) nach einem der vorstehenden Ansprüche dadurch gekennzeichnet, dass der Anschlussbereich (AB) zweigeteilt ist, wobei ein erster Teil (AB1) zur elektrischen Kontaktierung des elektrischen Leiters (2) und ein zweiter Teil (AB2) zur elektrischen Kontaktierung der Leiterbahn der Leiterkarte (4) vorgesehen ist. Kontaktelement (1) nach vorstehendem Anspruch dadurch gekennzeichnet, dass der erste und zweite Teil (AB1 , AB2) durch einen umlaufenden Ring (5) voneinander getrennt sind. Kontaktelement (1) nach einem der beiden vorstehenden Ansprüche dadurch gekennzeichnet, dass der erste Teil des Anschlussbereichs (AB1) als Crimpanschluss ausgebildet ist. Kontaktelement (1) nach einem der drei vorstehenden Ansprüche dadurch gekennzeichnet, dass der zweite Teil des Anschlussbereichs (AB2) zumindest ein Federelement (7) aufweist. Kontaktelement nach vorstehendem Anspruch dadurch gekennzeichnet, dass die Federkraft des zumindest einen Federelements (7) radial nach außen gerichtet ist. Kontaktelement nach einem der beiden vorstehenden Ansprüche dadurch gekennzeichnet, dass es sich bei dem Federelement (7) um einen umlaufenden Federring oder um ein Federblech handelt. Verfahren zur Montage eines Kontaktelements (1) auf einer Leiterkarte (4), wobei die Leiterkarte (4) zumindest eine Kontaktöffnung aufweist, die elektrisch leitend mit zumindest einer Leiterbahn der Leiterkarte (4) verbunden ist, i) wobei ein elektrischer Leiter (2) durch die Kontaktöffnung der Leiterkarte (4) durchgeschoben wird, ii) wobei das Ende des elektrischen Leiters (2) abisoliert wird, iii) wobei das abisolierte Ende des elektrischen Leiters (2) mit einem ersten Teil eines Anschlussbereichs (AB1 ) des Kontaktelements (1) vercrimpt wird iv) und wobei ein zweiter Teil des Anschlussbereichs (AB2) des Kontaktelements (1) in die Kontaktöffnung der Leiterkarte (4) eingeschoben wird. Verfahren nach vorstehendem Anspruch dadurch gekennzeichnet, dass der zweite Teil des Anschlussbereichs (AB2) des Kontaktelements Claims Contact element (1) for mounting on a circuit board (4), wherein the contact element (1) has a contact area (KB) (1) for electrically contacting a mating contact element, wherein the contact element (1) has a connection area (AB), which at the same time can be electrically contacted with an electrical conductor (2) and a conductor track of the circuit board (4). Contact element (1) according to claim 1, characterized in that the contact element (1) is essentially cylindrical. Contact element (1) according to one of the preceding claims, characterized in that the contact area (KB) is designed like a socket or pin. Contact element (1) according to one of the preceding claims, characterized in that the connection area (AB) is divided into two, with a first part (AB1) for electrical contacting of the electrical conductor (2) and a second part (AB2) for electrical contacting of the conductor track Circuit board (4) is provided. Contact element (1) according to the preceding claim, characterized in that the first and second parts (AB1, AB2) are separated from one another by a circumferential ring (5). Contact element (1) according to one of the two preceding claims, characterized in that the first part of the connection area (AB1) is designed as a crimp connection. Contact element (1) according to one of the three preceding claims, characterized in that the second part of the connection area (AB2) has at least one spring element (7). Contact element according to the preceding claim, characterized in that the spring force of the at least one spring element (7) is directed radially outwards. Contact element according to one of the two preceding claims, characterized in that the spring element (7) is a circumferential spring ring or a spring plate. Method for mounting a contact element (1) on a circuit board (4), wherein the circuit board (4) has at least one contact opening which is electrically conductively connected to at least one conductor track of the circuit board (4), i) wherein an electrical conductor (2) is pushed through the contact opening of the circuit board (4), ii) the end of the electrical conductor (2) being stripped, iii) the stripped end of the electrical conductor (2) being connected to a first part of a connection area (AB1) of the contact element (1 ) is crimped iv) and a second part of the connection area (AB2) of the contact element (1) is inserted into the contact opening of the circuit board (4). Method according to the preceding claim, characterized in that the second part of the connection area (AB2) of the contact element
(1) in der Kontaktöffnung durch eine Klemmwirkung eines(1) in the contact opening by a clamping effect of a
Federelements (7) fixiert oder zumindest darin gehalten wird. spring element (7) is fixed or at least held therein.
PCT/EP2023/076414 2022-09-28 2023-09-25 Hybrid contact element WO2024068558A1 (en)

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DE102022125029.6A DE102022125029A1 (en) 2022-09-28 2022-09-28 Hybrid contact element

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8804092U1 (en) 1988-03-25 1988-06-30 Grote & Hartmann Gmbh & Co Kg, 42369 Wuppertal Electrical miniaturized connector with circular plug sleeve and circular plug pin
US6210181B1 (en) * 1999-05-27 2001-04-03 Hirose Electric., Ltd. Press-fit terminal and electrical connector having same
DE102010020346A1 (en) 2010-05-12 2011-11-17 Harting Electric Gmbh & Co. Kg Electrical contact element
DE202013010545U1 (en) * 2013-11-25 2014-01-20 Erni Electronics Gmbh & Co.Kg Electrical contact element
DE102019119588A1 (en) 2019-07-19 2021-01-21 HARTING Electronics GmbH Contact element for the electrical connection of circuit cards and method for assembling a circuit card arrangement

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19527969C1 (en) 1995-07-18 1997-02-06 Fahrzeugausruestung Berlin Gmb Connection bolts for power electronic components

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8804092U1 (en) 1988-03-25 1988-06-30 Grote & Hartmann Gmbh & Co Kg, 42369 Wuppertal Electrical miniaturized connector with circular plug sleeve and circular plug pin
US6210181B1 (en) * 1999-05-27 2001-04-03 Hirose Electric., Ltd. Press-fit terminal and electrical connector having same
DE102010020346A1 (en) 2010-05-12 2011-11-17 Harting Electric Gmbh & Co. Kg Electrical contact element
DE202013010545U1 (en) * 2013-11-25 2014-01-20 Erni Electronics Gmbh & Co.Kg Electrical contact element
DE102019119588A1 (en) 2019-07-19 2021-01-21 HARTING Electronics GmbH Contact element for the electrical connection of circuit cards and method for assembling a circuit card arrangement

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