EP1999820A1 - Connecting terminal for printed circuit boards - Google Patents

Connecting terminal for printed circuit boards

Info

Publication number
EP1999820A1
EP1999820A1 EP07723683A EP07723683A EP1999820A1 EP 1999820 A1 EP1999820 A1 EP 1999820A1 EP 07723683 A EP07723683 A EP 07723683A EP 07723683 A EP07723683 A EP 07723683A EP 1999820 A1 EP1999820 A1 EP 1999820A1
Authority
EP
European Patent Office
Prior art keywords
terminal
spring
spring force
force element
electrical
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.)
Granted
Application number
EP07723683A
Other languages
German (de)
French (fr)
Other versions
EP1999820B1 (en
Inventor
Dieter Holste
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.)
Phoenix Contact GmbH and Co KG
Original Assignee
Phoenix Contact 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 Phoenix Contact GmbH and Co KG filed Critical Phoenix Contact GmbH and Co KG
Publication of EP1999820A1 publication Critical patent/EP1999820A1/en
Application granted granted Critical
Publication of EP1999820B1 publication Critical patent/EP1999820B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • H01R4/28—Clamped connections, spring connections
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
    • H01R4/48185—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar adapted for axial insertion of a wire end
    • H01R4/4819—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar adapted for axial insertion of a wire end the spring shape allowing insertion of the conductor end when the spring is unbiased
    • H01R4/4821—Single-blade spring
    • 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
    • H01R4/28—Clamped connections, spring connections
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
    • H01R4/4828—Spring-activating arrangements mounted on or integrally formed with the spring housing
    • H01R4/4833—Sliding arrangements, e.g. sliding button
    • 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
    • H01R4/28—Clamped connections, spring connections
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
    • H01R4/4846—Busbar details
    • 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
    • H01R12/77—Coupling devices for flexible printed circuits, flat or ribbon cables or like structures
    • H01R12/778—Coupling parts carrying sockets, clips or analogous counter-contacts
    • 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
    • H01R13/115—U-shaped sockets having inwardly bent legs, e.g. spade type
    • 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
    • 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
    • H01R13/18—Pins, blades or sockets having separate spring member for producing or increasing contact pressure with the spring member surrounding the socket

Definitions

  • the present invention relates generally to the field of basic electrical structural assemblies.
  • Such a connection in particular from the field of terminals, represents the electrical terminal.
  • the terminal serves as a link in the PCB connection technology for reliable supply of industrial electronics and economic single wiring on printed circuits and is referred to, for example, as a connector.
  • the terminal in particular connectors for electrical Konlaktieren and attaching to a baseboard equipped circuit board or an electrical device or the like, for at least one electrical conductor, there are, as known from the prior art, in many constructions, such as in unipolar or Mopoliger execution, with a block or tiered insulating loffgephaseuse, wherein the insulating housing at least one insertion opening for insertion of an electrical conductor, at least one insertion opening for inserting a contact pin in the socket contact and an opening for the Betreliistsmiltel in the form of a
  • Such terminals in particular connectors, are well known from the prior art and can, for example, the product catalog "PCB connection COMBICON 2005" TNR 5169412 / 31.12. 2004-00 of the company Phoenix Contact GmbH & Co KG, where there are such connectors in spring-cage connection technology for almost all applications in building services and telecommunications. All terminals, especially connectors of this type, are characterized by large clamping capacity, space-saving dimensions and versatility in connection technology. One series of these connectors relates to the spring-loaded terminal in leg spring technology.
  • Connectors of this type are a mass product. This results in the requirement that on the one hand the connection of the electrical conductors should be possible quickly and easily and on the other hand, the individual parts of the connector, in compliance with the guidelines and standards for electrically conductive components, inexpensive to manufacture, easy to assemble mechanically and taking into account the development needs in the spatial size to reduce the insulating material of the terminals in the size to adapt the connector to the ever-smaller space on the circuit boards.
  • each component is therefore to optimize its function and a closed system in which the contact-containing spring force element is so connected to the current-conducting pad, the electrical rail, that the contact is independent of an insulating material and consequently also a displacement of the spring force element at high temperatures is excluded due to softening and change in shape of the insulating material to create.
  • the invention is therefore an object of the invention to provide a terminal of the type mentioned above, which avoids the aforementioned disadvantages of the known arrangements of the prior art and to provide a technical solution that allows a cost-effective, equipped with simple functional geometry and small size Connection terminal, which is easy and quick to assemble, and whose terminal contact is independent of the insulating material, to produce for the PCB connections.
  • the invention proposes a
  • Connectors are characterized by space-saving design, fast connection technology by spring force and have none
  • the universal applicability of the terminal refers both to the vertical and the horizontal direction of insertion of the connector to be connected in conjunction with the base bar and the electrical conductors to be connected thereto on the circuit board.
  • the quick and secure clamping connection should be made by the spring-loaded connection technology, which lies in the fast connection of the electrical conductor or the electrical conductor without special tools.
  • the clamping system is based on the leg spring principle and can clamp one or more electrical conductors of the same or different potential.
  • the main task is to reduce the size of the insulating housing and to produce simple components that are easy and fast to assemble.
  • This object is achieved according to the invention by developing a plug connector which ensures the advantages of the spring force technology and the advantages of high clamping reliability through reliable mechanical connection and reliable electrical contact, whereby the module is further miniaturized in order to simultaneously increase the packing density on the printed circuit board.
  • a terminal in particular connector, usually consists of an insulating material, a contact insert, a spring force element and is, depending on the design, equipped with or without a lever opener.
  • a connector according to the teachings of the invention has a one-piece contact insert which is stamped out of a flat, electrically conductive strip material, wherein the strip material consists of a high-voltage copper alloy that is resistant to stress corrosion cracking so that the current transition is not affected.
  • a plurality of end pieces preferably five end pieces are formed on the strip material after punching.
  • the band material has the task to serve as an electrical rail and the electrical conductor to be connected to provide an optimal contact surface and on the other hand from the end pieces a contact element as a female contact to connect a contact pin, for example, in the base bar to form.
  • Other tails are used according to the invention the spring force element Fastening means, wherein the end pieces form a u-shaped spring cage as fastening means.
  • the U-shaped spring cage has two retaining arms, which have openings for receiving the retaining means of the spring force element, wherein the retaining means of the spring force element of projections which engage in the openings of the retaining arms of the Federkalf ⁇ gs exist.
  • the U-shaped spring cage has a bias, so that it rests without mounting air on the bearing surfaces of the leg spring.
  • the assembly thus mounted has sufficient stability so that it can be mounted without additional measures in the associated insulating housing.
  • the deflection of the spring force element is effected by inserting a sufficiently kink-resistant electrical conductor or by means of an insulating housing located in the actuating means, preferably spring trigger, which can be operated with a commercial operating tool.
  • the spring force element can also be formed from a spring assembly, wherein the spring assembly of individual leg springs is composed. This advantage according to the invention is made possible by the different sizes of the openings in the holding arms of the contact insert.
  • the inventively designed spring force element with simple cut geometry and their easy installation in the advantageous connection with the contact insert, a closed clamping cage, whereby it is possible to reduce the height of the insulating material decisively.
  • the insulating material made of thermoplastic material by injection molding therefore, can be optimally designed to the electrical insulating properties
  • Figure 1 is a perspective view of a terminal in section with a mounted on a circuit board base bar and
  • Figure 2 is a perspective view of a spring force element according to the invention.
  • FIG. 3 is a perspective view of a contact element according to the invention
  • Fig.l is an advantageous embodiment of a terminal 1 according to the invention in complete form after generic type of connector 2 in a miniaturized version of the insulating housing 3 in block design shown in section, which is attachable to a circuit board 4 with mounted base bar 5, wherein the Base bar 5 5 has a number of poles of two to 12 and in the vertical or horizontal direction of insertion to the circuit board, for example by a through hole reflow method 4, may be attached.
  • the terminal 1 consists of the elements insulating housing 3, wherein the insulating housing 3 in block design in two parts, in an upper and lower half of the housing
  • actuating means 8 preferably a handle part made of plastic for opening the nip 9 by applying an actuating tool 10
  • at least one spring force element 1 consisting of a material strip 12, preferably spring band steel, punched out and formed leg spring 13 for clamping an electrical conductor 6, with at least one ⁇ 5 contact insert 14, consisting of a molded and formed from an electrically conductive strip material 15 electric rail 16, wherein the electrical rail 16 a contact surface 17 for the electrical conductor 6 and a Contact element 18 has a female contact for attaching the terminal 1 to a contact pin 7, and means 19 for fixing the insulating housing 3.
  • the embodiment according to the invention of the spring force element 11 and that of the contact insert 14 can be seen in FIGS. 2 and 3.
  • FIG. 2 shows a perspective view of an advantageous embodiment of a spring force element according to the invention 1 1, consisting of a single leg spring 13, wherein the spring force element 1 1 from a spring assembly (not shown) may exist.
  • the spring assembly may be composed of several individual torsion springs 13 together, preferably from two legs springs 13.
  • the legs used in the spring package springs 13 may have the same contours, but also different contours. With the same contours, in turn, different thicknesses in the material thickness of the material strip 12 can be used, whereby a multiplicity of different forces can be set at the terminal point of the connection terminal. That is, with the same terminal can be adjusted individually by the appropriate selected leg spring 13 clamping force required for the application, resulting in a reliable mechanical connection and reliable contact with the conductor connection.
  • a terminal 1 is provided for connection of a rigid electrical conductor 6 with a contact insert 14 and spring force element 11, which may contain another spring force element 1 1 for the same conductor cross-section for fine-wire conductor 6.
  • the U-shaped loop 25 of the shaped leg spring 13 serves for the mobility of the free leg 24 and the deflection of the force of the attachable in the opening 47 of the contact insert 14 leg 23 on the movable leg 24th
  • the spring force element 11 therefore contains means 20 for attachment to the contact insert 14, wherein the means 20 consist of geometrically arranged holding means 21.
  • the contour of the leg spring 13 is designed such that at the two longitudinal sides 26 of the leg spring 13 at the end of the leg 23 to be fastened two Holding means 21 lying parallel to one another are arranged.
  • the holding means 21 consist of projections 22, wherein the shape of the projections 22 are adapted to the shape of the openings 47 in the contact insert 14 and correspond in cross section to a square or a Rechleck, preferably a rectangle.
  • FIG. 3 is a perspective view of an advantageous embodiment of a contact insert 14 according to the invention of the type in question for a connector 2 refer to the
  • Contact insert 14 is made of a flat electrically conductive strip material 15.
  • the punched out of the strip material 15 and formed in bending contact insert 1 4 is in one piece and forms an electrical rail 16.
  • the contour of the electrical rail 16 consists, as seen in the development, essentially of a narrow web 30, on which a plurality of arranged thereon end pieces 31, 32, 33, 34, 35 are formed, wherein two
  • End pieces 31, 32 are arranged on the central axis of the strip material 30 made of narrow web 30, in each case at the opposite end 36, 37.
  • the end piece 31 is connected via a leg 38 with the end piece 33, which is parallel to the end piece 31 and to the central axis of the narrow web 30 extends, arranged.
  • Both end pieces 31, 32 together form a contact element 18, which is designed as a socket contact and receives a contact pin 7, for example, the contact pin of a base strip 5 (see Figure 1).
  • the female contact 18 may, as shown in Figure 3, be equipped to increase the clamping force with an additional bracket 41.
  • the bracket 41 engages around the two end pieces 31, 33, wherein the attachment of the bracket 41 via one on the outside of the end piece 31, 32 pronounced buddy 42, which engages in a bore 43 of the bracket 41, takes place.
  • Other types of attachment of the bracket 41 at the end pieces such as rivets, are conceivable.
  • the end piece 33 is connected to the free end opposite the narrow side 39 with the electric rail 16, preferably by welding, with other types of attachment are conceivable.
  • a 90 degrees angled leg 40 (shown as a dashed line in Figure 3) is arranged, which counteracts the force occurring when opening the female contact 18 by the contact pin 7 counteracts.
  • the bracket 41 can be omitted.
  • the spring cage 45 consists of two Gara ⁇ nen 46 and a portion of the electrical rail 16, uzw. the area of the electrical rail 16, which serves as the electrical conductor 6 as a contact surface 17 in the nip 9, wherein the two retaining arms 46 take over the attachment of the spring force element 1 1.
  • the tail 32 thus have several functions.
  • the first function is that the end piece 32 in the U-shaped region makes the connection between the end pieces 34 and 35.
  • the end piece 32 laterally arranged guide rails 48 fulfill other functions.
  • a closed spring cage 45 is formed.
  • the two parallel spaced guide rails 48 at the same time also form the short "L" fönnigen leg (see dashed line) of the support arms 46, which also serve the electrical conductor 6 for guidance and electrical contact, the support arms 46, the long "L” shaped " Furthermore, the guide rails 48 increase the strength of the electrical rail 16 when absorbing the forces, for example against the deflection, which is produced by the spring force element 11 in the holding arms 46.
  • the end piece 32 are still openings 50, preferably three openings 50 produced by punching technology, which are advantageous in the molding process in the production of Contact insert 14 impact.
  • the contact insert 14 serves as a holding function, whereas the two parallel to each other and perpendicular to the central axis of the electric rail 16 two support arms 46 of receiving and fixing the spring force element 1 1 serve.
  • the holding arms 46 have openings 47, in which the arranged on the spring force element 1 1 Haltemitte] 21, preferably consisting of projections 22, engage.
  • the shape of the opening 47 in a holding arm 46 forms a slot 51, wherein the slot 51 in cross section forms a square or a rectangle, preferably rectangular. It is also conceivable that two elongated holes 51 are arranged in a holding arm 46.
  • the width of the slot 51 depends on whether a strip of material 12 of the spring force element 1 1 or a spring package consisting of several legs springs 13 to be used. That is, the size of the opening 47 of the material thickness of the spring force element 1 1 manufactured or adapted accordingly.

Landscapes

  • Coupling Device And Connection With Printed Circuit (AREA)
  • Connections Arranged To Contact A Plurality Of Conductors (AREA)

Abstract

The present invention relates in general to the field of fundamental electrically conductive physical connections. Physical connections of a multiplicity of mutually isolated connection elements, designed in particular for printed circuits, with the physical connections representing a component of an electrical connection between two or more conductive elements with direct contact, using a spring. The electrical connecting terminal represents a connection such as this, in particular from the field of terminals. The connecting terminal is used as a linking element in printed circuit board connection technology for providing a reliable supply to industrial electronics and economic individual wiring on printed circuits. The refinement according to the invention of the contact insert of a connecting terminal with the spring force element being mounted symmetrically, with the spring force element designed according to the invention with a simple section geometry and its simple mounting together with the advantageous connection to the contact insert, results in a closed terminal cage which makes it possible to reduce the physical height of the dielectric housing to a major extent.

Description

Titel Anschlussklemme für Leiterplatten Title Connection terminal for printed circuit boards
Hintergrund der ErfindungBackground of the invention
Technisches GebietTechnical area
Die vorliegende Erfindung bezieht sich allgemein auf das Gebiet grundlegender elektrisch leitender baulicher Vereinigungen. Bauliche Vereinigungen einer Vielzahl von gegenseitigen isolierten Verbindungselementen, besonders ausgebildet für gedruckte Schaltungen, wobei die bauliche Vereinigung ein Bauteil einer elektrischen Verbindung zwischen zwei oder mehreren leitenden Gliedern mit direktem Kontakt unter Verwendung einer Feder darstellt. Eine solche Verbindung, insbesondere aus dem Bereich der Klemmen, stellt die elektrische Anschlussklemme dar. Die Anschlussklemme dient als Bindeglied in der Leiterplattenanschlusstechnik zur zuverlässigen Versorgung der industriellen Elektronik und wirtschaftlichen Einzelverdrahtung auf gedruckten Schaltungen und wird beispielsweise als Steckverbinder bezeichnet.The present invention relates generally to the field of basic electrical structural assemblies. Structural assemblies of a plurality of mutually insulated interconnecting elements, particularly adapted for printed circuits, wherein the structural assembly constitutes a component of an electrical connection between two or more direct-contact conductive members using a spring. Such a connection, in particular from the field of terminals, represents the electrical terminal. The terminal serves as a link in the PCB connection technology for reliable supply of industrial electronics and economic single wiring on printed circuits and is referred to, for example, as a connector.
Hintergrund im Stand der TechnikBackground in the art
Die Anschlussklemme, insbesondere Steckverbinder zum elektrischen Konlaktieren und zum Anbringen an einer mit einer Grundleiste ausgestatteten Leiterplatte oder eines elektrischen Gerätes oder dergleichen, für wenigstens einen elektrischen Leiter, gibt es, wie aus dem Stand der Technik bekannt, in vielen Bauausführungen, wie beispielsweise in einpoliger oder mehrpoliger Ausführung, mit einem in Blockbauweise oder anreihbaren Isoliersloffgehäuse, wobei das Isolierstoffgehäuse wenigstens eine Einführungsöffnung zum Einführen eines elektrischen Leiters, wenigstens eine Einführungsöffnung zum Einführen eines Kontaktstiftes in den Buchsenkontakt und eine Öffnung für das Betätigungsmiltel in Form einesThe terminal, in particular connectors for electrical Konlaktieren and attaching to a baseboard equipped circuit board or an electrical device or the like, for at least one electrical conductor, there are, as known from the prior art, in many constructions, such as in unipolar or mehrpoliger execution, with a block or tiered insulating loffgehäuse, wherein the insulating housing at least one insertion opening for insertion of an electrical conductor, at least one insertion opening for inserting a contact pin in the socket contact and an opening for the Betätigungsmiltel in the form of a
BESTÄTISGUNGSKOPIE Drückerelementes zum Öffnen der Klemmstelle durch Ansetzen eines Betätigungswerkzeuges, sowie einen Aufhahmeraum zur Aufnahme eines Federkraftelementes und eines Kontakteinsatzes der mehrere Funktionen besitzt, aufweist.BESTÄTISGUNGSKOPIE Drückerelementes for opening the nip by applying an actuating tool, and a receiving space for receiving a spring force element and a contact insert has a plurality of functions has.
Solche Anschlussklemmen, insbesondere Steckverbinder, sind aus dem Stand der Technik hinreichend bekannt und können beispielsweise dem Produktkatalog " Leiterplattenanschluss COMBICON 2005 " TNR 5169412/ 31.12. 2004-00 der Firma Phoenix Contact GmbH & Co KG entnommen werden, wobei es solche Steckverbinder in Federkraftanschlusstechnik für nahezu alle Anwendungsfälle in der Gebäudetechnik und Telekommunikation gibt. Alle Anschlussklemmen, insbesondere Steckverbinder dieser Art, zeichnen sich durch großes Klemmvermögen, platzsparende Abmessungen und Vielseitigkeit in der Anschlusstechnik aus. Eine Baureihe dieser Steckverbinder betrifft die Federkraftanschlussklemme in Schenkelfedertechnik.Such terminals, in particular connectors, are well known from the prior art and can, for example, the product catalog "PCB connection COMBICON 2005" TNR 5169412 / 31.12. 2004-00 of the company Phoenix Contact GmbH & Co KG, where there are such connectors in spring-cage connection technology for almost all applications in building services and telecommunications. All terminals, especially connectors of this type, are characterized by large clamping capacity, space-saving dimensions and versatility in connection technology. One series of these connectors relates to the spring-loaded terminal in leg spring technology.
Steckverbinder dieser Art sind ein Massenprodukt. Daraus resultiert die Forderung, dass einerseits das Anschließen der elektrischen Leiter schnell und problemlos möglich sein soll und andererseits die Einzelteile des Steckverbinders, unter Beachtung der Richtlinien und Normen für elektrisch leitende Bauteile, kostengünstig herzustellen, maschinell einfach zu konfektionieren und unter Berücksichtigung des Entwicklungsbedarfs bei der räumlichen Größe, die Isolierstoffgehäuse der Anschlussklemmen in der Baugröße zu reduzieren, um die Steckverbinder dem immer kleiner werdenden Bauraum auf den Leiterplatten anzupassen.Connectors of this type are a mass product. This results in the requirement that on the one hand the connection of the electrical conductors should be possible quickly and easily and on the other hand, the individual parts of the connector, in compliance with the guidelines and standards for electrically conductive components, inexpensive to manufacture, easy to assemble mechanically and taking into account the development needs in the spatial size to reduce the insulating material of the terminals in the size to adapt the connector to the ever-smaller space on the circuit boards.
Es wird daher verlangt, dass die Bauteile rationell herstellbar und verarbeitbar sind und höheren Qualitätsansprüchen genügen, um den unterschiedlichen Anwendungsfällen gerecht zu werden. Jedes Bauteil ist deshalb in seiner Funktion zu optimieren und ein geschlossenes System, bei dem das kontaktgebende Federkraftelement so mit der stromleitenden Anschlussfläche, der elektrischen Schiene, verbunden wird, dass die Kontaktgabe unabhängig von einem Isolierstoffgehäuse erfolgt und demzufolge auch eine Verlagerung des Federkraftelementes bei hohen Temperaturen infolge einer Erweichung und Formänderung des Isolierstoffgehäuses ausgeschlossen ist, zu schaffen.It is therefore required that the components are rationally manufacturable and processable and meet higher quality standards to meet the different applications. Each component is therefore to optimize its function and a closed system in which the contact-containing spring force element is so connected to the current-conducting pad, the electrical rail, that the contact is independent of an insulating material and consequently also a displacement of the spring force element at high temperatures is excluded due to softening and change in shape of the insulating material to create.
Aus der DE 28 02 686, welche als nächstkommender Stand der Technik betrachtet wird, ist eine Federklemme zur Steckverbindung mehrerer elektrischer Leiter mit einer Stromschiene, mittels die Leiter gegen die Stromschiene pressender Druckfeder bekannt, wobei die Druckfedern abgewinkelte beabstandete Zungen des Basissteges eines etwa u-förmigen Federelements auf, dessen Schenkel an der Stromschiene und an dem ein es überdachendes Isoliergehäuse festlegbar ist. Diese bekannte Anordnung ist zwar für mehrere Klemmstellen vorgesehen, aber grundsätzlich nicht als Anschlussklemme für die Leiterplattentechnik geeignet. Der Nachteil besteht auch darin, dass ein schnelles Lösen der einzelnen Klemmverbindungen durch den charakteristischen Hebelöffher nicht gegeben ist.From DE 28 02 686, which is considered as the closest prior art, a spring clip for plug connection of a plurality of electrical conductors with a busbar, by means of the head against the busbar pressing compression spring known, wherein the compression springs angled spaced tongues of the base web of an approximately U-shaped spring element, the leg of which is secured to the busbar and a roofing it insulating housing. Although this known arrangement is intended for several terminal points, but in principle not suitable as a terminal for printed circuit board technology. The disadvantage is also that a rapid release of the individual clamping connections is not given by the characteristic Hebelöffher.
Der Erfindung liegt daher die Aufgabe zugrunde, eine Anschlussklemme der eingangs genannten Art zu schaffen, welche die vorgenannten Nachteile der bekannten Anordnungen aus dem Stand der Technik vermeidet und eine technische Lösung anzugeben, die es ermöglicht, eine kostengünstige, mit einfacher Funktionsgeometrie und geringer Baugröße ausgestattete Anschlussklemme, die einfach und schnell konfektionierbar ist, und deren Klemmenkontakt unabhängig vom Isolierstoffgehäuse erfolgt, für die Leiterplattenanschlüsse herzustellen.The invention is therefore an object of the invention to provide a terminal of the type mentioned above, which avoids the aforementioned disadvantages of the known arrangements of the prior art and to provide a technical solution that allows a cost-effective, equipped with simple functional geometry and small size Connection terminal, which is easy and quick to assemble, and whose terminal contact is independent of the insulating material, to produce for the PCB connections.
Erfindungsgemäß wird dieses Problem durch die kennzeichnenden Merkmale des Patentanspruchs 1 gelöst. Vorteilhafte Ausgestaltungen und Weiterbildungen der Erfindung ergeben sich aus den nachfolgenden Unteransprüchen und den nachfolgenden Beschreibungen.According to the invention this problem is solved by the characterizing features of claim 1. Advantageous embodiments and further developments of the invention will become apparent from the following subclaims and the following descriptions.
Beschreibung der ErfindungDescription of the invention
Um eine mit diesen Merkmalen der vorliegenden Erfindung ausgestattete Anschlussklemme in Federkrafttechnik für eine schnelle, sichere und universelle Klemmverbindung in miniaturisierterTo a equipped with these features of the present invention terminal in spring force technology for a fast, secure and universal clamp connection in miniaturized
Ausführung, unter Berücksichtung der Verdrahtungsanforderungen der Gerätehersteller undDesign, taking into account the wiring requirements of the device manufacturers and
Leiterplattenverarbeiter herzustellen, wird erfindungsgemäß vorgeschlagen, einenProduce printed circuit board processor, the invention proposes a
Steckverbinder zu schaffen, welcher einerseits den elektrischen Kontakt optimal sicher stellt und andererseits eine Reduzierung der Baugröße ermöglicht. Steckverbinder zeichnen sich durch platzsparende Bauform, schnelle Anschlusstechnik durch Federkraft aus und besitzen keineTo provide connectors, on the one hand optimally ensures the electrical contact and on the other hand allows a reduction in size. Connectors are characterized by space-saving design, fast connection technology by spring force and have none
Verriegelung von Stecker und Grund- oder Stiftleiste. Die universelle Verwendbarkeit der Anschlussklemme bezieht sich sowohl auf die vertikale als auch auf die horizontale Steckrichtung des anzuschließenden Steckverbinders in Verbindung mit der Grundleiste und den damit anzuschließenden elektrischen Leitern auf der Leiterplatte.Locking of plug and ground or pin header. The universal applicability of the terminal refers both to the vertical and the horizontal direction of insertion of the connector to be connected in conjunction with the base bar and the electrical conductors to be connected thereto on the circuit board.
Die schnelle und sichere Klemmverbindung soll durch die Federkraftanschlusstechnik erfolgen, die im schnellen Anschluss des elektrischen Leiters- bzw. der elektrischen Leiter ohne spezielles Werkzeug liegt. Das Klemmsystem beruht auf dem Schenkelfederprinzip und kann einen oder mehrere elektrische Leiter gleichen oder unterschiedlichen Potentials klemmen.The quick and secure clamping connection should be made by the spring-loaded connection technology, which lies in the fast connection of the electrical conductor or the electrical conductor without special tools. The clamping system is based on the leg spring principle and can clamp one or more electrical conductors of the same or different potential.
Die Hauptaufgabe besteht darin, die Baugröße des Isolierstoffgehäuses zu reduzieren und einfache Bauteile herzustellen, die einfach und schnell zu konfektionieren sind.The main task is to reduce the size of the insulating housing and to produce simple components that are easy and fast to assemble.
Alle vorgenannten Anforderungen sollen in einer Anschlussklemme, insbesondere Steckverbinder, vereint werden.All the above requirements are to be combined in a terminal, in particular connectors.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, dass ein Steckverbinder entwickelt Λvird, welcher die Vorteile der Federkrafttechnik und die Vorteile der hohen Klemmsicherheit durch zuverlässige mechanische Verbindung und zuverlässigen elektrischen Kontakt sicher stellt wobei die Baugruppe weiter miniaturisiert wird um gleichzeitig die Packungsdichte auf der Leiterplatte zu erhöhen.This object is achieved according to the invention by developing a plug connector which ensures the advantages of the spring force technology and the advantages of high clamping reliability through reliable mechanical connection and reliable electrical contact, whereby the module is further miniaturized in order to simultaneously increase the packing density on the printed circuit board.
Eine Anschlussklemme, insbesondere Steckverbinder, besteht in der Regel aus einem Isolierstoffgehäuse, einem Kontakteinsatz, einem Federkraftelement und ist, je nach Bauart, mit oder ohne einen Hebelöffner ausgestattet. Ein Steckverbinder, nach der Lehre der Erfindung, besitzt einen einstückigen Kontakteinsatz, der aus einem flachen, elektrisch leitfähigen Bandmaterial ausgestanzt ist, wobei das Bandmaterial aus einer spannungsriss- korrosionssicheren hochwertigen Kupferlegierung besteht, damit der Stromübergang nicht beeinflusst wird.A terminal, in particular connector, usually consists of an insulating material, a contact insert, a spring force element and is, depending on the design, equipped with or without a lever opener. A connector according to the teachings of the invention has a one-piece contact insert which is stamped out of a flat, electrically conductive strip material, wherein the strip material consists of a high-voltage copper alloy that is resistant to stress corrosion cracking so that the current transition is not affected.
Erfindungsgemäß sind an dem Bandmaterial nach dem Ausstanzen eine Vielzahl von Endstücken, vorzugsweise fünf Endstücke ausgebildet. Dem Bandmaterial kommt die Aufgabe zu, einerseits als elektrische Schiene zu dienen und dem anzuschließenden elektrischen Leiter eine optimale Anlagefläche zu bieten und andererseits aus den Endstücken ein Kontaktelement als Buchsenkontakt zum Anschluss eine Kontaktstiftes, beispielsweise in der Grundleiste, zu bilden. Weitere Endstücke dienen erfindungsgemäß dem Federkraftelement als Befestigungsmittel, wobei die Endstücke als Befestigungsmittel einen u-fbrmigen Federkäfig bilden. Der u-förmige Federkäfig weist zwei Haltearme auf, die Öffnungen zur Aufnahme der Haltemittel des Federkraftelements besitzen, wobei die Haltemittel des Federkraftelements aus Vorsprüngen die in die Öffnungen der Haltearme des Federkäfϊgs eingreifen, bestehen. Dabei hat der u-förmige Federkäfig eine Vorspannung, sodass er ohne Montageluft an den Auflageflächen der Schenkelfeder anliegt. Die so montierte Baugruppe hat ausreichend Stabilität, um so ohne zusätzliche Maßnahmen in das zugehörige Isolierstoffgehäuse montiert werden zu können. Die Auslenkung des Federkraftelements erfolgt durch Einschieben eines ausreichend knickstabilen elektrischen Leiters bzw. mittels eines im Isolierstoffgehäuse befindlichen Betätigungsmittel, vorzugsweise Federdrückers, welcher mit einem handelsüblichen Betätigungswerkzeug bedient werden kann. Das Federkraftelement kann auch aus einem Federpaket gebildet sein, wobei das Federpaket aus einzelnen Schenkel federn zusammengesetzt ist. Dieser erfindungsgemäße Vorteil wird durch die unterschiedlichen Größen der Öffnungen in den Haltearmen des Kontakteinsatzes ermöglicht. Bei der erfindungsgemäßen Ausgestaltung des Kontakteinsatzes mit symmetrischer Lagerung des Federkraftelements, dem erfindungsgemäß gestalteten Federkraftelement mit einfacher Schnittgeometrie und deren einfachen Montage bei der vorteilhaften Verbindung mit dem Kontakteinsatz, entsteht ein geschlossener Klemmkäfig, wodurch es ermöglicht wird, die Bauhöhe des Isolierstoffgehäuses entscheidend zu reduzieren. Das Isolierstoffgehäuse aus thermoplastischen Kunststoff im Spritzgießverfahren hergestellt, kann daher konstruktiv auf die elektrischen Isoliereigenschaften optimal abgestimmt werdenAccording to the invention a plurality of end pieces, preferably five end pieces are formed on the strip material after punching. The band material has the task to serve as an electrical rail and the electrical conductor to be connected to provide an optimal contact surface and on the other hand from the end pieces a contact element as a female contact to connect a contact pin, for example, in the base bar to form. Other tails are used according to the invention the spring force element Fastening means, wherein the end pieces form a u-shaped spring cage as fastening means. The U-shaped spring cage has two retaining arms, which have openings for receiving the retaining means of the spring force element, wherein the retaining means of the spring force element of projections which engage in the openings of the retaining arms of the Federkäfϊgs exist. In this case, the U-shaped spring cage has a bias, so that it rests without mounting air on the bearing surfaces of the leg spring. The assembly thus mounted has sufficient stability so that it can be mounted without additional measures in the associated insulating housing. The deflection of the spring force element is effected by inserting a sufficiently kink-resistant electrical conductor or by means of an insulating housing located in the actuating means, preferably spring trigger, which can be operated with a commercial operating tool. The spring force element can also be formed from a spring assembly, wherein the spring assembly of individual leg springs is composed. This advantage according to the invention is made possible by the different sizes of the openings in the holding arms of the contact insert. In the inventive design of the contact insert with symmetrical mounting of the spring force element, the inventively designed spring force element with simple cut geometry and their easy installation in the advantageous connection with the contact insert, a closed clamping cage, whereby it is possible to reduce the height of the insulating material decisively. The insulating material made of thermoplastic material by injection molding, therefore, can be optimally designed to the electrical insulating properties
Ein Ausführungsbeispiel der Erfindung ist in den Zeichnungen rein schematisch dargestellt und nachfolgend näher beschrieben. Es zeigtAn embodiment of the invention is shown purely schematically in the drawings and described in more detail below. It shows
Figur 1 eine perspektivische Darstellung einer Anschlussklemme im Schnitt mit einer auf einer Leiterplatte montierten Grundleiste undFigure 1 is a perspective view of a terminal in section with a mounted on a circuit board base bar and
Figur 2 eine perspektivische Darstellung eines erfindungsgemäßen Federkraftelements undFigure 2 is a perspective view of a spring force element according to the invention and
Figur 3 eine perspektivische Darstellung eines erfindungsgemäßen Kontaktelements In Fig.l wird in perspektivischer Ansicht eine vorteilhafte Ausfuhrung einer erfindungsgemäßen Anschlussklemme 1 in kompletter Form nach gattungsbildender Art eines Steckverbinders 2 in miniaturisierter Ausführung des Isolierstoffgehäuses 3 in Blockbauweise im Schnitt dargestellt, welche auf eine Leiterplatte 4 mit montierter Grundleiste 5 aufsteckbar ist, wobei die Grundleiste 5 5 eine Polzahl von zwei bis 12 aufweist und in vertikaler oder horizontaler Steckrichtung zur Leiterplatte, beispielsweise durch ein Through Hole Reflow- Verfahren 4, befestigt sein kann.Figure 3 is a perspective view of a contact element according to the invention In Fig.l is an advantageous embodiment of a terminal 1 according to the invention in complete form after generic type of connector 2 in a miniaturized version of the insulating housing 3 in block design shown in section, which is attachable to a circuit board 4 with mounted base bar 5, wherein the Base bar 5 5 has a number of poles of two to 12 and in the vertical or horizontal direction of insertion to the circuit board, for example by a through hole reflow method 4, may be attached.
Die Anschlussklemme 1 besteht aus den Elementen Isolierstoffgehäuse 3, wobei das Isolierstoffgehäuse 3 in Blockbauweise zweiteilig, in eine obere und untere GehäusehälfteThe terminal 1 consists of the elements insulating housing 3, wherein the insulating housing 3 in block design in two parts, in an upper and lower half of the housing
10 aufgeteilt ist und einem Aufnahmeraum 27 bildet, mit wenigstens einem Betätigungsmittel 8, vorzugsweise einem Drückerteil aus Kunststoff zum Öffnen der Klemmstelle 9 durch Ansetzen eines Betätigungswerkzeuges 10, mit wenigstens einem Federkraftelement 1 1 , bestehend aus einer aus einem Materialstreifen 12, vorzugsweise Federbandstahl, ausgestanzten und geformten Schenkelfeder 13 zum Klemmen eines elektrischen Leiters 6, mit wenigstens einem ι5 Kontakteinsatz 14, bestehend aus einer aus einem elektrisch leitfähigen Bandmaterial 15 ausgestanzten und geformten elektrischen Schiene 16, wobei die elektrische Schiene 16 eine Anlagefläche 17 für den elektrischen Leiter 6 und ein Kontaktelement 18 als Buchsenkontakt zum Aufstecken der Anschlussklemme 1 auf einen Kontaktstift 7, sowie Mittel 19 zur Befestigung des Isolierstoffgehäuses 3 aufweist. Die erfindungsgemäße Ausführungsform des 0 Federkraftelementes 1 1 und die des Kontakteinsatzes 14 ist der Fig.2 und Fig.3 zu entnehmen.10 is divided and forms a receiving space 27, with at least one actuating means 8, preferably a handle part made of plastic for opening the nip 9 by applying an actuating tool 10, with at least one spring force element 1 1, consisting of a material strip 12, preferably spring band steel, punched out and formed leg spring 13 for clamping an electrical conductor 6, with at least one ι 5 contact insert 14, consisting of a molded and formed from an electrically conductive strip material 15 electric rail 16, wherein the electrical rail 16 a contact surface 17 for the electrical conductor 6 and a Contact element 18 has a female contact for attaching the terminal 1 to a contact pin 7, and means 19 for fixing the insulating housing 3. The embodiment according to the invention of the spring force element 11 and that of the contact insert 14 can be seen in FIGS. 2 and 3.
Fig.2 zeigt in perspektivischer Ansicht eine vorteilhafte Ausführung eines erfindungsgemäßen Federkraftelementes 1 1, bestehend aus einer einzelnen Schenkelfeder 13, wobei das Federkraftelement 1 1 auch aus einem Federpaket (nicht dargestellt) bestehen kann. s Das Federpaket kann aus mehreren einzelnen Schenkelfedern 13 zusammen gesetzt sein, vorzugsweise aus zwei Schenkel federn 13. Die im Federpaket eingesetzten Schenkel federn 13 können gleiche Konturen, aber auch unterschiedliche Konturen aufweisen. Bei gleichen Konturen können wiederum unterschiedliche Dicken in der Materialstärke des Materialstreifens 12 verwendet werden, wodurch sich einen Vielzahl von unterschiedlichen Kräften an der 0 Klemmstelle der Anschlussklemme einstellen lässt. D.h., mit der gleichen Anschlussklemme kann individuell die auf den Einsatzbedarf benötigte Klemmkraft durch die entsprechende ausgewählte Schenkelfeder 13 eingestellt werden, wodurch sich eine zuverlässige mechanische Verbindung und ein zuverlässiger Kontakt beim Leiteranschluss ergibt. Individuell bedeutet in diesem Zusammenhang das Eingehen auf die unterschiedlichen elektrischen Leiter 6, die in Form von Massivleitern, das heißt, dass sowohl starre ( ein -bzw. mehrdrähtige) als auch flexible ( fein- bzw. feinstdrähtige) Leiter mit und ohne Aderendhülsen geklemmt werden können. Beispielsweise wird eine Anschlussklemme 1 zum Anschluss eines starren elektrischen Leiters 6 mit einem Kontakteinsatz 14 und Federkraftelement 11 ausgestattet, die bei gleichem Leiterquerschnitt für feindrähtige Leiter 6 ein anderes Federkraftelement 1 1 enthalten kann.2 shows a perspective view of an advantageous embodiment of a spring force element according to the invention 1 1, consisting of a single leg spring 13, wherein the spring force element 1 1 from a spring assembly (not shown) may exist. s The spring assembly may be composed of several individual torsion springs 13 together, preferably from two legs springs 13. The legs used in the spring package springs 13 may have the same contours, but also different contours. With the same contours, in turn, different thicknesses in the material thickness of the material strip 12 can be used, whereby a multiplicity of different forces can be set at the terminal point of the connection terminal. That is, with the same terminal can be adjusted individually by the appropriate selected leg spring 13 clamping force required for the application, resulting in a reliable mechanical connection and reliable contact with the conductor connection. Individual means in In this connection, attention is paid to the different electrical conductors 6, which are in the form of solid conductors, that is to say that both rigid (one or multiwire) and flexible (fine or superfine) conductors can be clamped with and without wire end ferrules. For example, a terminal 1 is provided for connection of a rigid electrical conductor 6 with a contact insert 14 and spring force element 11, which may contain another spring force element 1 1 for the same conductor cross-section for fine-wire conductor 6.
Die Form der Schenkelfeder 13, die aus zwei Schenkeln 23,24 gebildet wird, entspricht im ungespannten Zustand in etwa einem "U" mit nicht gleich langen Schenkeln. Im Scheitelpunkt befindet sich eine u-förmige Schlaufe 25. Die u-förmige Schlaufe 25 der ausgeformten Schenkelfeder 13 dient der Beweglichkeit des freien Schenkels 24 und der Umlenkung der Kraft von dem in der Öffnung 47 des Kontakteinsatzes 14 befestigbaren Schenkel 23 auf den beweglichen Schenkel 24. Das Federkraftelement 11 enthält daher zur Befestigung am Kontakteinsatz 14 Mittel 20, wobei die Mittel 20 aus geometrisch angeordneten Haltemitteln 21 bestehen. Zum Einhängen bzw. zur Befestigung des Federkraftelementes 1 1 in die Öffnungen 47 des u-fbrmigen Federkäfigs 45 des Kontakteinsatzes 14, ist die Kontur der Schenkelfeder 13 derart gestaltet, dass an den beiden Längsseiten 26 der Schenkelfeder 13 am Ende des zu befestigenden Schenkels 23 zwei sich parallel gegenüber liegende Haltemittel 21 angeordnet sind. Die Haltemittel 21 bestehen aus Vorsprüngen 22, wobei die Form der Vorsprünge 22 der Form der Öffnungen 47 im Kontakteinsatz 14 angepasst sind und im Querschnitt einem Quadrat oder einem Rechleck entsprechen, vorzugsweise einem Rechteck.The shape of the leg spring 13, which is formed from two legs 23,24, corresponds in the untensioned state in about a "U" with not equal long legs. At the apex is a U-shaped loop 25. The U-shaped loop 25 of the shaped leg spring 13 serves for the mobility of the free leg 24 and the deflection of the force of the attachable in the opening 47 of the contact insert 14 leg 23 on the movable leg 24th The spring force element 11 therefore contains means 20 for attachment to the contact insert 14, wherein the means 20 consist of geometrically arranged holding means 21. For hanging or for fixing the spring force element 1 1 in the openings 47 of the U-shaped spring cage 45 of the contact insert 14, the contour of the leg spring 13 is designed such that at the two longitudinal sides 26 of the leg spring 13 at the end of the leg 23 to be fastened two Holding means 21 lying parallel to one another are arranged. The holding means 21 consist of projections 22, wherein the shape of the projections 22 are adapted to the shape of the openings 47 in the contact insert 14 and correspond in cross section to a square or a Rechleck, preferably a rectangle.
Der Fig.3 ist in perspektivischer Ansicht eine vorteilhafte Ausführung eines erfindungsgemäßen Kontakteinsatzes 14 der in Rede stehenden Art für einen Steckverbinder 2 zu entnehmen Der3 is a perspective view of an advantageous embodiment of a contact insert 14 according to the invention of the type in question for a connector 2 refer to the
Kontakteinsatz 14 wird aus einem flachen elektrisch leitfähigen Bandmaterial 15 hergestellt. Der aus dem Bandmaterial 15 ausgestanzte und in Biegetechnik ausgeformte Kontakteinsatz 1 4 ist einstückig und bildet eine elektrische Schiene 16. Die Kontur der elektrischen Schiene 16 besteht, in der Abwicklung betrachtet, im wesentlichen aus einem schmalen Steg 30, an dem eine Vielzahl daran angeordneter Endstücke 31 , 32, 33, 34, 35 ausgebildet sind, wobei zweiContact insert 14 is made of a flat electrically conductive strip material 15. The punched out of the strip material 15 and formed in bending contact insert 1 4 is in one piece and forms an electrical rail 16. The contour of the electrical rail 16 consists, as seen in the development, essentially of a narrow web 30, on which a plurality of arranged thereon end pieces 31, 32, 33, 34, 35 are formed, wherein two
Endstücke 31 , 32 auf der Mittelachse des aus Bandmaterial 15 gefertigten schmalen Steges 30, jeweils am sich gegenüber liegenden Ende 36, 37 angeordnet sind. Das Endstück 31 ist über einen Schenkel 38 mit dem Endstück 33, welches parallel zum Endstück 31 und zur Mittelachse des schmalen Steges 30 verläuft, angeordnet. Beide Endstücke 31, 32 bilden zusammen ein Kontaktelement 18, welches als Buchsenkontakt ausgebildet ist und einen Kontaktstift 7 aufnimmt, beispielsweise den Kontaktstift einer Grundleiste 5 (siehe Fig.1). Der Buchsenkontakt 18 kann, wie in Fig.3 dargestellt, zur Erhöhung der Klemmkraft mit einem zusätzlichen Bügel 41 ausgestattet sein. Der Bügel 41 umgreift die beiden Endstücke 31 ,33, wobei die Befestigung des Bügels 41 über jeweils einen an der Außenseite des Endstückes 31 ,32 ausgeprägten Kumpel 42 , der in eine Bohrung 43 des Bügels 41 greift, erfolgt. Andere Befestigungsarten des Bügels 41 an den Endstücken, wie beispielsweise Nieten, sind denkbar. In einer anderen Ausführungsform eines Kontakteinsatzes 14 ist das Endstück 33 an der dem freien Ende gegenüber liegenden Schmalseite 39 mit der elektrischen Schiene 16 verbunden, vorzugsweise durch Schweißen, wobei andere Befestigungsarten denkbar sind. Beispielsweise das an der Schmalseite 39 ein 90 Grad abgewinkelter Schenkel 40 (als gestrichelte Linie in Fig.3 dargestellt) angeordnet ist, welcher der auftretenden Kraft die beim Öffnen des Buchsenkontaktes 18 durch den Kontaktstift 7 auftritt, entgegenwirkt. Der Bügel 41 kann dadurch entfallen.End pieces 31, 32 are arranged on the central axis of the strip material 30 made of narrow web 30, in each case at the opposite end 36, 37. The end piece 31 is connected via a leg 38 with the end piece 33, which is parallel to the end piece 31 and to the central axis of the narrow web 30 extends, arranged. Both end pieces 31, 32 together form a contact element 18, which is designed as a socket contact and receives a contact pin 7, for example, the contact pin of a base strip 5 (see Figure 1). The female contact 18 may, as shown in Figure 3, be equipped to increase the clamping force with an additional bracket 41. The bracket 41 engages around the two end pieces 31, 33, wherein the attachment of the bracket 41 via one on the outside of the end piece 31, 32 pronounced buddy 42, which engages in a bore 43 of the bracket 41, takes place. Other types of attachment of the bracket 41 at the end pieces, such as rivets, are conceivable. In another embodiment of a contact insert 14, the end piece 33 is connected to the free end opposite the narrow side 39 with the electric rail 16, preferably by welding, with other types of attachment are conceivable. For example, on the narrow side 39 a 90 degrees angled leg 40 (shown as a dashed line in Figure 3) is arranged, which counteracts the force occurring when opening the female contact 18 by the contact pin 7 counteracts. The bracket 41 can be omitted.
Die beiden Endstücke 34,35, angeordnet unterhalb des angrenzenden Endstückes 32 und oberhalb des Kontaktelementes 18, bilden mit dem Endstück 32 einen u-förmigen Federkäfig 45. Der Federkäfig 45 besteht aus zwei Halteaπnen 46 und einem Bereich der elektrischen Schiene 16, uzw. dem Bereich der elektrischen Schiene 16, der dem elektrischen Leiter 6 als Anlagefläche 17 in der Klemmstelle 9 dient, wobei die zwei Haltearme 46 die Befestigung des Federkraftelementes 1 1 übernehmen. Dem Endstück 32 kommen somit mehrere Funktionen zu. Die erste Funktion besteht darin, dass das Endstück 32 im u-förmigen Bereich die Verbindung zwischen den Endstücken 34 und 35 herstellt. Die am Endstück 32 seitlich angeordneten Führungsschienen 48 erfüllen weitere Funktionen. Einerseits wird damit der bewegliche Schenkel 24 des Federkraftelementes 1 1 geführt und andererseits ein geschlossener Federkäfig 45 gebildet. Die beiden parallel beabstandeten Führungsschienen 48 bilden gleichzeitig auch den kurzen "L" fönnigen Schenkel (siehe gestrichelte Linie) der Haltearme 46, die dem elektrischen Leiter 6 ebenfalls zur Führung und zum elektrischen Kontakt dienen, wobei die Haltearme 46 den langen " L" förmigen " Schenkel darstellen. Des weiteren verstärken die Führungsschienen 48 die Festigkeit der elektrischen Schiene 16 bei der Aufnahme der Kräfte, beispielsweise gegen die Durchbiegung, die durch das Federkraftelement 1 1 in den Haltearmen 46 erzeugt wird. Im Endstück 32 sind noch Durchbrüche 50, vorzugsweise drei Durchbrüche 50, stanztechnisch hergestellt, enthalten, die sich vorteilhaft im Formgebungsprozess bei der Herstellung des Kontakteinsatzes 14 auswirken. Ein am Endstück 32 angeordnetes Befestigungsmitte] 19, bestehend aus einem abgewinkelten Rasthaken 49, dient dem Kontakteinsatz 14 als Haltefunktion, wohingegen die parallel zueinander und senkrecht zur Mittelachse der elektrischen Schiene 16 stehenden zwei Haltearme 46 der Aufnahme und Befestigung des Federkraftelementes 1 1 dienen. Die Haltearme 46 besitzen dazu Öffnungen 47, in denen die am Federkraftelement 1 1 angeordneten Haltemitte] 21 , bestehend vorzugsweise aus Vorsprüngen 22, eingreifen. Die Form der Öffnung 47 in einem Haltearm 46 bildet ein Langloch 51 , wobei das Langloch 51 im Querschnitt ein Quadrat oder ein Rechteck bildet, vorzugsweise Rechteck. Auch ist es denkbar, das zwei Langlöcher 51 in einem Haltearm 46 angeordnet sind. Die Breite des Langlochs 51 richtet sich danach, ob ein Materialstreifen 12 des Federkraftelements 1 1 oder ein Federpaket bestehend aus mehreren Schenkel federn 13 eingesetzt werden soll. D.h., dass die Größe der Öffnung 47 der Material stärke des Federkraftelements 1 1 entsprechend hergestellt bzw. angepasst ist. The two end pieces 34,35, disposed below the adjacent end piece 32 and above the contact element 18, form with the end piece 32 a U-shaped spring cage 45. The spring cage 45 consists of two Halteaπnen 46 and a portion of the electrical rail 16, uzw. the area of the electrical rail 16, which serves as the electrical conductor 6 as a contact surface 17 in the nip 9, wherein the two retaining arms 46 take over the attachment of the spring force element 1 1. The tail 32 thus have several functions. The first function is that the end piece 32 in the U-shaped region makes the connection between the end pieces 34 and 35. The end piece 32 laterally arranged guide rails 48 fulfill other functions. On the one hand so that the movable leg 24 of the spring force element 1 1 is guided and on the other hand, a closed spring cage 45 is formed. The two parallel spaced guide rails 48 at the same time also form the short "L" fönnigen leg (see dashed line) of the support arms 46, which also serve the electrical conductor 6 for guidance and electrical contact, the support arms 46, the long "L" shaped " Furthermore, the guide rails 48 increase the strength of the electrical rail 16 when absorbing the forces, for example against the deflection, which is produced by the spring force element 11 in the holding arms 46. In the end piece 32 are still openings 50, preferably three openings 50 produced by punching technology, which are advantageous in the molding process in the production of Contact insert 14 impact. An arranged on the end piece 32 Befestigungsmitte] 19, consisting of an angled locking hook 49, the contact insert 14 serves as a holding function, whereas the two parallel to each other and perpendicular to the central axis of the electric rail 16 two support arms 46 of receiving and fixing the spring force element 1 1 serve. The holding arms 46 have openings 47, in which the arranged on the spring force element 1 1 Haltemitte] 21, preferably consisting of projections 22, engage. The shape of the opening 47 in a holding arm 46 forms a slot 51, wherein the slot 51 in cross section forms a square or a rectangle, preferably rectangular. It is also conceivable that two elongated holes 51 are arranged in a holding arm 46. The width of the slot 51 depends on whether a strip of material 12 of the spring force element 1 1 or a spring package consisting of several legs springs 13 to be used. That is, the size of the opening 47 of the material thickness of the spring force element 1 1 manufactured or adapted accordingly.
BezuεszeichenhsteBezuεszeichenhste
1 Anschlussklemme 29 Frei1 terminal 29 Free
2 Steckverbinder 30 Steg2 connectors 30 bridge
3 Isolierstoffgehäuse 31 Endstück3 insulating housing 31 end piece
4 Leiterplatte 32 Endstück4 circuit board 32 tail
5 Grundleiste 33 Endstück5 base strip 33 end piece
6 elektrischer Leiter 34 Endstück6 electrical conductors 34 tail
7 Kontaktstift 35 Endstück7 contact pin 35 end piece
8 Betätigungsmittel 36 Ende8 actuating means 36 end
9 Klemmstelle 37 Ende9 nip 37 end
10 B etäti gungswerkzeu g 38 Schenkel10 B eting tools 38 Legs
1 1 Federkraftelement 39 Schmalseite1 1 spring element 39 narrow side
12 Material streifen 40 Schenkel (abgewinkelt)12 strips of material 40 legs (angled)
13 Schenkel fed er 41 Bügel13 legs fed he 41 stirrups
14 Kontakteinsatz 42 Kumpel14 contact insert 42 buddy
15 Bandmaterial 43 Bohrung15 Band material 43 Bore
16 elektrische Schiene 44 Frei16 electric rail 44 free
17 Anlagefläche 45 Federkäfig17 contact surface 45 spring cage
18 Kontaktelement 46 Haltearme18 contact element 46 holding arms
19 Befestigungsmittel 47 Öffnungen19 fastening means 47 openings
20 Mittel 48 Führungsschienen20 means 48 guide rails
21 Haltemittel 49 Rasthaken21 Holding means 49 Detent hook
22 Vorsprünge 50 Durchbrüche22 protrusions 50 breakthroughs
23 Schenkel(befestigt) 51 Langloch23 legs (attached) 51 slot
24 Schenkel ( beweglich)24 thighs (movable)
25 Schlaufe25 loop
26 Längsseite26 long side
27 Aufnahmeraum27 recording room
28 Frei 28 free

Claims

Patentansprüche claims
1. Anschlussklemme (1) insbesondere Steckverbinder (2) zum elektrischen Kontaktieren und zum Anbringen an einer mit einer Grundleiste (5) ausgestatteten Leiterplatte (4) oder eines elektrischen Gerätes für wenigstens einen elektrischen Leiter (6)1. Terminal (1), in particular plug connector (2) for electrical contacting and for attachment to a base strip (5) equipped printed circuit board (4) or an electrical device for at least one electrical conductor (6)
- mit einem in Blockbauweise oder anreihbaren Isolierstoffgehäuse (3),- With a block construction or bayable insulating housing (3),
- mit wenigstens einem Betätigungsmittel (8) aus Kunststoff,- With at least one actuating means (8) made of plastic,
- mit wenigstens einem Federkraftelement (1 1 ), bestehend aus einer aus einem Material streifen (12) ausgestanzten und gefonnten Schenkelfeder(18) zum Klemmen eines elektrischen Leiters (6),- With at least one spring force element (1 1), consisting of a strip of a material (12) punched out and gefönnes leg spring (18) for clamping an electrical conductor (6),
- mit wenigstens einem Kontakteinsatz (14), bestehend aus einer aus einem elektrisch leitfähigen Bandmaterial (15) ausgestanzten und geformten elektrischen Schiene (16), wobei die elektrische Schiene (16) eine Anlagefläche (17) für den elektrischen Leiter (6) und ein Kontaktelement (18) zum Aufstecken der Anschlussklemme (1) auf einen Kontaktstift (7), sowie Mittel (19) zur- With at least one contact insert (14) consisting of a of an electrically conductive strip material (15) punched out and shaped electrical rail (16), wherein the electrical rail (16) has a contact surface (17) for the electrical conductor (6) and a Contact element (18) for attaching the terminal (1) on a contact pin (7), and means (19) for
Befestigung im Isolierstoffgehäuse (3) aufweist,Having fastening in the insulating housing (3),
dadurch gekennzeichnet, dass das Federkraftelement (1 1 ) Mittel (20) zur Befestigung am Kontakteinsatz (14) enthält.characterized in that the spring force element (1 1) includes means (20) for attachment to the contact insert (14).
2. Anschlussklemme (1) nach Anspruch 1 , dadurch gekennzeichnet, dass die Mittel (20) aus geometrisch angeordneten Haltemitteln (21) bestehen.2. Terminal (1) according to claim 1, characterized in that the means (20) consist of geometrically arranged holding means (21).
3. Anschlussklemme (1 ) nach Anspruch 1 bis 2, dadurch gekennzeichnet, dass die Haltemittel (21) durch Vorsprünge (22) gebildet sind.3. Terminal (1) according to claim 1 to 2, characterized in that the holding means (21) by projections (22) are formed.
4. Anschlussklemme (1 ) nach Anspruch 1 bis 3, dadurch gekennzeichnet, dass die Form der Vorsprünge (22) im Querschnitt rechteckig oder quadratisch ausgebildet sind. 4. Terminal (1) according to claim 1 to 3, characterized in that the shape of the projections (22) are rectangular or square in cross-section.
5. Anschlussklemme (1) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Federkraftelement (1 1) aus einem Federpaket besteht.5. Terminal (1) according to one of the preceding claims, characterized in that the spring force element (1 1) consists of a spring assembly.
6. Anschlussklemme (1) nach Anspruch 5, dadurch gekennzeichnet, dass das Federpaket aus wenigstens zwei Schenkelfedern (13) besteht.6. Terminal (1) according to claim 5, characterized in that the spring assembly consists of at least two torsion springs (13).
7. Anschlussklemme (1) nach Anspruch 5 bis 6, dadurch gekennzeichnet, dass die im7. Terminal (1) according to claim 5 to 6, characterized in that in the
Federpaket eingesetzten Schenkelfedern (12) gleiche Konturen aufweisen.Spring set inserted torsion springs (12) have the same contours.
8. Anschlussklemme 1 nach Anspruch 5 bis 7, dadurch gekennzeichnet, dass die im Federpaket eingesetzten Schenkel federn (13) unterschiedliche Konturen aufweisen.8. Terminal 1 according to claim 5 to 7, characterized in that the legs used in the spring package springs (13) have different contours.
9. Anschlussklemme (1) nach Anspruch 1 , dadurch gekennzeichnet, dass der Kontakteinsatz (14) einstückig aus flachem, elektrisch leitfähigen Bandmaterial(15) ausgestanzt und geformt ist und eine elektrische Schiene (16) bildet.9. terminal (1) according to claim 1, characterized in that the contact insert (14) is integrally stamped and formed from flat, electrically conductive strip material (15) and forms an electrical rail (16).
10. Anschlussklemme (1) nach Anspruch 9, dadurch gekennzeichnet, dass die Kontur der elektrischen Schiene (16) aus einer Vielzahl von Endstücken (31 , 32, 33, 34, 35) gebildet wird.10. terminal (1) according to claim 9, characterized in that the contour of the electrical rail (16) from a plurality of end pieces (31, 32, 33, 34, 35) is formed.
1 1. Anschlussklemme (1 ) nach Anspruch 9 bis 10, dadurch gekennzeichnet, dass zwei1 1. Terminal (1) according to claim 9 to 10, characterized in that two
Endstücke (31, 32) auf der Mittelachse des Bandmaterials (15) angeordnet sind.End pieces (31, 32) are arranged on the central axis of the strip material (15).
12. Anschlussklemme (1) nach Anspruch 9 bis 1 1 , dadurch gekennzeichnet, dass die beiden Endstücke (31 , 33) ein Kontaktelement (18) bilden.12. Terminal (1) according to claim 9 to 1 1, characterized in that the two end pieces (31, 33) form a contact element (18).
13. Anschlussklemme (1) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass drei Endstücke (32, 34, 35) einen u-förmigen Federkäfig (45) bilden.13. Terminal (1) according to any one of the preceding claims, characterized in that three end pieces (32, 34, 35) form a U-shaped spring cage (45).
14. Anschlussklemme (1) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Endstück (32) seitliche Führungsschienen (48) aufweist. 14. Terminal (1) according to one of the preceding claims, characterized in that the end piece (32) has lateral guide rails (48).
15. Anschlussklemme (1) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Führungsschienen (48) der Führung des beweglichen Schenkels (24) des Federkraftelementes (1 1) und der Führung des elektrischen Leiters (6) dienen.15. Terminal (1) according to one of the preceding claims, characterized in that the guide rails (48) of the guide of the movable leg (24) of the spring force element (1 1) and the guide of the electrical conductor (6) are used.
16. Anschlussklemme (1) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Endstück (32) Durchbrüche (50) enthält.16. Terminal (1) according to one of the preceding claims, characterized in that the end piece (32) contains openings (50).
17. Anschlussklemme (1 ) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass am Endstück (32) ein Befestigungsmittel (19) angeordnet ist.17. Terminal (1) according to one of the preceding claims, characterized in that the end piece (32) has a fastening means (19) is arranged.
18. Anschlussklemme (1) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Befestigungsmittel (19) aus einem Rasthaken (49)besteht.18. Terminal (1) according to one of the preceding claims, characterized in that the fastening means (19) consists of a latching hook (49).
19. Anschlussklemme (1) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der u-förmige Federkäfig (45) zwei Haltearme (46) zur Befestigung des Federkraftelementes (1 1 ) aufweist.19. Terminal (1) according to one of the preceding claims, characterized in that the U-shaped spring cage (45) has two retaining arms (46) for fastening the spring force element (1 1).
20. Anschlussklemme (1) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Haltearme (46) Öffnungen (47) zur Aufnahme eines Haltemittels (21) des Federkraftelementes (1 1 ) aufweisen.20. Terminal (1) according to one of the preceding claims, characterized in that the holding arms (46) have openings (47) for receiving a holding means (21) of the spring force element (1 1).
21. Anschlussklemme (1) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Form der Öffnung (47) ein Langloch (51 ) bildet.21, terminal (1) according to any one of the preceding claims, characterized in that the shape of the opening (47) forms a slot (51).
22. Anschlussklemme (1) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Langloch (51 ) im Querschnitt ein Rechteck bildet.22 terminal (1) according to any one of the preceding claims, characterized in that the slot (51) forms a rectangle in cross section.
23. Anschlussklemme (1) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Größe der Öffnung (47) der Materialslärke des Federkraftelementes (1 1) angepasst ist. 23. Terminal (1) according to one of the preceding claims, characterized in that the size of the opening (47) of the material thickness of the spring force element (1 1) is adjusted.
EP07723683A 2006-03-28 2007-03-28 Connecting terminal for printed circuit boards Active EP1999820B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006014646A DE102006014646B4 (en) 2006-03-28 2006-03-28 Terminal for printed circuit boards
PCT/EP2007/002737 WO2007112899A1 (en) 2006-03-28 2007-03-28 Connecting terminal for printed circuit boards

Publications (2)

Publication Number Publication Date
EP1999820A1 true EP1999820A1 (en) 2008-12-10
EP1999820B1 EP1999820B1 (en) 2012-12-05

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ID=38198359

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EP07723683A Active EP1999820B1 (en) 2006-03-28 2007-03-28 Connecting terminal for printed circuit boards

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US (1) US7993156B2 (en)
EP (1) EP1999820B1 (en)
JP (1) JP4719806B2 (en)
CN (1) CN101416354B (en)
DE (1) DE102006014646B4 (en)
ES (1) ES2399450T3 (en)
WO (1) WO2007112899A1 (en)

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Also Published As

Publication number Publication date
US20100173531A1 (en) 2010-07-08
WO2007112899A1 (en) 2007-10-11
EP1999820B1 (en) 2012-12-05
ES2399450T3 (en) 2013-04-01
CN101416354B (en) 2012-05-23
CN101416354A (en) 2009-04-22
DE102006014646A1 (en) 2007-10-11
US7993156B2 (en) 2011-08-09
JP2009531815A (en) 2009-09-03
JP4719806B2 (en) 2011-07-06
DE102006014646B4 (en) 2008-06-26

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