EP0169970B1 - Electrical connecting terminal - Google Patents

Electrical connecting terminal Download PDF

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Publication number
EP0169970B1
EP0169970B1 EP85103183A EP85103183A EP0169970B1 EP 0169970 B1 EP0169970 B1 EP 0169970B1 EP 85103183 A EP85103183 A EP 85103183A EP 85103183 A EP85103183 A EP 85103183A EP 0169970 B1 EP0169970 B1 EP 0169970B1
Authority
EP
European Patent Office
Prior art keywords
conductor
terminal
insulating block
clamp
bow
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.)
Expired
Application number
EP85103183A
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German (de)
French (fr)
Other versions
EP0169970A1 (en
Inventor
Helmut Fuchs
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.)
Karl Lumberg GmbH and Co
Original Assignee
Karl Lumberg GmbH and Co
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 Karl Lumberg GmbH and Co filed Critical Karl Lumberg GmbH and Co
Priority to AT85103183T priority Critical patent/ATE27384T1/en
Publication of EP0169970A1 publication Critical patent/EP0169970A1/en
Application granted granted Critical
Publication of EP0169970B1 publication Critical patent/EP0169970B1/en
Expired legal-status Critical Current

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    • 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
    • H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member
    • H01R4/36—Conductive members located under tip of screw
    • H01R4/363—Conductive members located under tip of screw with intermediate part between tip and conductive member
    • 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
    • H01R12/515—Terminal blocks providing connections to wires or 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
    • 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
    • H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member
    • H01R4/301—Clamped connections, spring connections utilising a screw or nut clamping member having means for preventing complete unscrewing of screw or nut

Definitions

  • the invention relates to an electrical connection terminal, consisting of an insulating body with a number of clamping body receptacles corresponding to the number of contacts, from a corresponding number of clamping bodies, preferably designed as a pulling sleeve, each with a connection space for inserting an electrical conductor and a threaded bore for receiving a clamping screw one conductor protection element provided within the connection space of a clamp body and each of at least one solder connection pin, the conductor protection element and the solder connection pin being made in one piece as a clip body and the clip body insertable into the clip body receptacle from the solder connection side being held captively in the insulating body by the clip body at least indirectly on or is anchored in the insulating body.
  • Such electrical connection terminals are understood to mean terminal strips for printed circuits in particular. Depending on the version, they have a fixed number of contacts and are usually multi-pole, e.g. equipped with two, three, four, six, eight, twelve or eighteen sprags. The insulating body then has a corresponding length.
  • Such known electrical terminals e.g. According to DE-C-25 11 385, it is characteristic that the clamping body receptacle or the clamping body receptacles on the longitudinal sides of the insulating body parallel to the direction of sequence are closed except for the respective conductor insertion opening and that the clamping bodies equipped with the bracket body are connected from the base or solder connection side be inserted into the insulating body.
  • bracket body Two options are known for holding the clamping body and bracket body in the clamping body receptacles.
  • one consists of captively anchoring the two individual parts in the insulating material housing in that the bracket body is positively connected to the insulating body, e.g. a resilient locking lug is formed on the bracket body and engages in a locking recess in the insulating body. So here the bracket body is directly anchored in the insulating body. With such a connection terminal, a base plate can be dispensed with.
  • the invention has for its object to propose an electrical terminal of the type referred to in the preamble of claim 1, which no longer requires this additional assembly step.
  • the invention solves this problem in that the conductor protection element of the bracket body can be inserted through a lateral opening of the insulating body in the opposite direction to the direction of the insertion into the terminal space of the clamping body.
  • the bracket body is only brought into its functional position later, namely after the insulator has been fitted, with a clamping body, i.e. with its conductor protection element inserted into the terminal space of the clamping body already placed in the insulating body.
  • the two parts are inserted in different, transverse directions.
  • Assembly takes place, for example, in such a way that the clamping bodies are inserted into the clamping body receptacles of the insulating body which is held with its solder connection side up, whereupon the bracket bodies are fed from the side.
  • contact parts in the insulating body transversely to the direction of insertion of the conductor in the case of an electrical connecting terminal.
  • This is shown, for example, in DE-B-10 15 890.
  • the subject of this document is not a generic connecting terminal, but rather a so-called "terminal block" which is assembled from a multiplicity of single-pole modules in a layered construction. A number of modules corresponding to the required number of poles is pushed onto a common mounting rail, and the closed side wall of the next module closes the open side of the previous one, into which the contact parts are inserted transversely to the conductor direction.
  • the contact parts are a clamp body with a solder tab, Clamping screw and traveling nut.
  • New and correspondingly advantageous in the sense of the application solution is the different assembly direction of the clamping body on the one hand and the bracket body on the other hand and the fact that these parts are inserted one after the other into the insulating body.
  • a favorable embodiment consists in that the side wall of the insulating body opposite the conductor insertion opening has two openings, of which the upper corresponds approximately to the cross section of the bracket body forming the conductor protection element with its free leg and the lower, for transverse insertion of the soldering connection pin, towards the soldering connection side of the insulating body is open, furthermore there is the possibility that the bracket body is supported in a manner known per se by means of at least one barb cut out from it on an inner surface of the insulating body and that this tongue is attached to the conductor protection element or to a bracket leg parallel to it.
  • a base plate closing the solder connection side of the connection terminal can be dispensed with.
  • an advantageous further embodiment is that the bracket body is held immovably in the insulating body itself only by resting on a support surface in the direction of the clamping screw, and that a base plate holds it immovable transversely thereto by using a soldering pin Grips recess, it is also expedient if the base plate is held in a snap-fit manner on the soldering connection pin and in a form-fitting manner on the underside edge of the insulating body.
  • the base plate is held self-supporting on the solder pin of the bracket body and does not need to be firmly connected to the insulating body. Only a positive connection takes place between the base plate and the insulating body, which prevents displacement of the base plate in its plane and, at the same time, a corresponding displacement of the bracket body, which in turn is held against displacement in the longitudinal direction of the soldering pin and thus transversely to the level of the base plate by the supporting surface of the insulating body .
  • FIG. 1 The drawings show the executed electrical connection terminal on a considerably enlarged scale of approximately 8: 1.
  • Such terminals usually have an insulating body with a maximum outer width of approximately 10 mm and a contact distance of 5 mm.
  • connection terminal consists of an insulating body 10 with a plurality of clamping body receptacles 11, each of a clamping body 12 assigned to each clamping body receptacle 11 with a connection space 13 for inserting an electrical conductor and with an upper threaded bore 14 for the adjustable guidance of a clamping screw 15 and finally from a bracket body 16, the in a one-piece design, a conductor protection element 17 and a solder connection pin 18 are combined.
  • the bow body 16 has approximately the shape of a “?”, The free end leg of which is formed on the one hand by the conductor protection element 17 and on the other hand by the soldering pin 18. They run perpendicular to each other. Starting from the soldering pin 18, a section 19 running parallel to the conductor protection element 17 is formed after an essentially right-angled bend and then a section 20 parallel to the soldering connecting pin 18 is again formed after an opposite bend, which in turn is approximately 90 °.
  • the insulating body 10 made of plastic has a number of clamping body receptacles 11, clamping bodies 12, clamping screws 15 and bracket bodies 16 corresponding to the number of poles and, accordingly, a plurality of conductor insertion openings 21 provided on one side of the housing and bores 22 on the top side for inserting the clamping screws 15.
  • the embodiment according to FIGS. 4 to 6 additionally has a base plate 23 with a number of openings 24 corresponding to the position and number of the solder connection pins 18 of the bracket body 16, the cross section of which corresponds to that of the free end section of a solder connection pin 18 is matched.
  • the side wall 25 of the insulating body 10 opposite the conductor insertion openings 21 has an essentially slot-shaped opening 25 in the area of each clamping body receptacle 11, the circumference of which is a little larger than the cross-sectional circumference of the conductor protection element 17 by a necessary insertion play.
  • the web surface 27 which delimits the opening 28 on the underside serves as a contact surface for the conductor protection element 17 (see FIGS. 2 and 3 and 5 and 6). At a distance from the surface 27 corresponding approximately to the clear internal distance between the conductor protection element 17 and the shackle body section 19 running parallel thereto, the wall section 28 is cut off to form an opening 29 which is free towards the solder connection side.
  • the individual clamping bodies 12 are first inserted into the clamping body receptacles 11 from the solder connection side, which can be done with suitable mechanical devices when the insulating body is standing, lying or upside down.
  • the clamping screw 15 - which is held captive in its final assembly position in the insulating body 10 with the aid of retaining projections 30 - as shown in FIGS. 2 and 5, can be screwed into the thread for connection to the clamping body 12.
  • the so partially assembled terminal is then supplied transversely to the assembly direction of the clamping body 12, the corresponding number of strap bodies 16, in particular connected to a belt, by feeding them in the longitudinal direction of the conductor protection element 17 such that the conductor protection elements 17 through the wall opening 26 and into the connection space 13 of the associated clamp body 12.
  • the respective bracket body 16 has resilient latching tongues 31 for anchoring it in the insulating body 10.
  • the latching tongues 13 are located on the bracket section 19 running parallel to the conductor protection element 17 and snap behind an inner wall protrusion 32.
  • the electrical connection elements are now held captive in total in the insulating body 10.
  • the latching tongues for holding the bracket body 16 are dispensed with. These are held immovably in the longitudinal direction of the clamping screw 15 or the soldering pin 18 by resting the conductor protection element 17 on the support surface 27. In the transverse direction, that is, in the direction of insertion of the conductor, this is done with the aid of the base plate 23, which lies loosely with its edges in a step 35 on the free underside of the insulating body 10 and is held in place by latching connections with the solder connection pins 18 of the bracket body 16. For this purpose, small outwardly pointing wings or tongues 36 are provided, via which the recesses 24 of the base plate 23 are snapped.
  • bracket body 16 cannot be displaced in the longitudinal direction of its soldering pin 18, the base plate 23 is also held in place in this direction. Their transverse movement is prevented by the inclusion in the step 35 of the insulating body 10 and thereby also a transverse displacement of the bracket body 16.

Landscapes

  • Coupling Device And Connection With Printed Circuit (AREA)
  • Multi-Conductor Connections (AREA)
  • Cable Accessories (AREA)

Abstract

An electrical terminal strip comprises an insulating body having a plurality of connector compartments, a corresponding number of clamp members constructed as compartment liners each having a clamp passage in which an electrical conductor is insertable and a threaded hole for receiving a clamp screw. Each of the clamp members is provided with a clamp bracket having both a conductor engaging element and at least one solder connector pin. The clamp member is insertable through its solder connector end into the connector compartments of the insulating body where it is held undetachably, while the clamp bracket is subsequently inserted through a lateral opening in the insulating body in a direction opposite to the direction the conductor is inserted so that the conductor engaging element is in the clamp space. No other components or assembly steps are required to unite the conductor clamp member and clamp bracket in the insulating body, but a base plate may or may not be a part of the electrical strip. When a base plate is employed however, it can advantageously interlock with the clamp bracket so as to be held in place and to assist in keeping the clamp bracket in position.

Description

Die Erfindung bezieht sich auf eine elektrische Anschlußklemme, bestehend aus einem Isolierkörper mit einer der Kontaktzahl entsprechenden Anzahl von Klemmkörperaufnahmen, aus entsprechend vielen, vorzugsweise als Zughülse ausgeführten, Klemmkörpern mit jeweils einem Anschlußraum zum Einführen eines elektrischen Leiters und einer Gewindebohrung zur Aufnahme einer Klemmschraube, aus je einem innerhalb des Anschlußraumes eines Klemmkörpers vorgesehenen Leiterschutzelement und aus je mindestens einem Lötanschlußstift, wobei das Leiterschutzelement und der Lötanschlußstift einstückig als Bügelkörper ausgeführt sind und der von der Lötanschlußseite her in die Klemmkörperaufnahme einführbare Klemmkörper unverlierbar im Isolierkörper gehalten ist, indem der Bügelkörper mindestens mittelbar am bzw. im Isolierkörper verankert ist.The invention relates to an electrical connection terminal, consisting of an insulating body with a number of clamping body receptacles corresponding to the number of contacts, from a corresponding number of clamping bodies, preferably designed as a pulling sleeve, each with a connection space for inserting an electrical conductor and a threaded bore for receiving a clamping screw one conductor protection element provided within the connection space of a clamp body and each of at least one solder connection pin, the conductor protection element and the solder connection pin being made in one piece as a clip body and the clip body insertable into the clip body receptacle from the solder connection side being held captively in the insulating body by the clip body at least indirectly on or is anchored in the insulating body.

Unter derartigen elektrischen Anschlußklemmen werden Anschlußleisten für insbesondere gedruckte Schaltungen verstanden. Sie besitzen je nach Ausführung eine fixe Anzahl von Kontakten und sind in der Regel mehrpolig z.B. mit zwei, drei, vier, sechs, acht, zwölf oder achtzehn Klemmkörpern ausgerüstet. Der Isolierkörper besitzt dann eine entsprechende Länge. Für derartige bekannte elektrische Anschlußklemmen z.B. nach der DE-C- 25 11 385 ist es charakteristisch, daß die Klemmkörperaufnahme bzw. die Klemmkörperaufnahmen an den zur Reihungsrichtung parallelen Längsseiten des Isolierkörpers bis auf die jeweilige Leitereinführöffnung geschlossen sind und daß die mit dem Bügelkörper bestückten Klemmkörper von der Boden- bzw. Lötanschlußseite her in den Isolierkörper eingelegt werden.Such electrical connection terminals are understood to mean terminal strips for printed circuits in particular. Depending on the version, they have a fixed number of contacts and are usually multi-pole, e.g. equipped with two, three, four, six, eight, twelve or eighteen sprags. The insulating body then has a corresponding length. For such known electrical terminals e.g. According to DE-C-25 11 385, it is characteristic that the clamping body receptacle or the clamping body receptacles on the longitudinal sides of the insulating body parallel to the direction of sequence are closed except for the respective conductor insertion opening and that the clamping bodies equipped with the bracket body are connected from the base or solder connection side be inserted into the insulating body.

Zur Halterung der Klemmkörper und Bügelkörper in den Klemmkörperaufnahmen sind zwei Möglichkeiten bekannt. Die eine besteht nach der DE-C- 25 11 385 darin, die jeweils beiden Einzelteile dadurch im Isolierstoffgehäuse unverlierbar zu verankern, daß der Bügelkörper mit dem Isolierkörper formschlüssig verbunden wird, wobei z.B. am Bügelkörper eine federnde Rastnase ausgebildet ist, die in eine Rastausnehmung des Isolierkörpers eingreift. Hier erfolgt also eine unmittelbare Verankerung des Bügelkörpers im Isolierkörper. Bei einer derartigen Anschlußklemme kann auf eine Bodenplatte verzichtet werden.Two options are known for holding the clamping body and bracket body in the clamping body receptacles. According to DE-C-25 11 385, one consists of captively anchoring the two individual parts in the insulating material housing in that the bracket body is positively connected to the insulating body, e.g. a resilient locking lug is formed on the bracket body and engages in a locking recess in the insulating body. So here the bracket body is directly anchored in the insulating body. With such a connection terminal, a base plate can be dispensed with.

Dies ist jedoch nicht immer erwünscht, und so gibt es eine andere Bauform, bei der eine im wesentlichen flächige Bodenplatte in einen umlaufenden Rand an der Lötanschlußseite des Isolierkörpers eingesetzt und dort verrastet wird. Die Bodenplatte besitzt zum "Auffädeln" auf die Lötanschlußstifte der Bügelkörper Durchbrechungen. Bei dieser Ausführung erfolgt die unverlierbare Zuordnung von Klemmkörper und Bügelkörper im Isolierkörper durch die Bodenplatte. Hier ist der Bügelkörper also unmittelbar im Isolierkörper verankert. Die Bestückung erfolgt vor dem Aufsetzen der Bodenplatte in de gleichen Weise wie bei der Klemme nach der DE-C- 25 11 385 von der Lötanschlußseite des (zunächst) offenen Isolierkörpers her.However, this is not always desirable, and so there is another design in which an essentially flat base plate is inserted into a peripheral edge on the solder connection side of the insulating body and locked there. The base plate has openings for "threading" on the solder pins of the bracket body. In this version, the captive assignment of the clamping body and the bow body in the insulating body takes place through the base plate. Here, the bracket body is anchored directly in the insulating body. The assembly takes place before placing the base plate in the same way as in the terminal according to DE-C-25 11 385 from the solder connection side of the (initially) open insulating body.

Bei beiden bekannten elektrischen Anschlußklemmen ist es unumgänglich, vor der Bestückung des Isolierkörpers mit den Kontaktelementen in einem gesonderten Arbeitsgang zunächst den Bügelkörper und den Klemmkörper zu einem einheitlich handhabbaren Bauteil zusammenzustecken. Diese vormontierten Bauteile werden dann dem Isolierkörper zugeführt und in diesen eingelegt.In both known electrical connection terminals, it is inevitable to first plug the stirrup body and the clamping body together into a uniformly manageable component before equipping the insulating body with the contact elements. These preassembled components are then fed to the insulating body and inserted therein.

Der Erfindung liegt die Aufgabe zugrunde, eine elektrische Aschlußklemme der im Oberbegriff des Anspruchs 1 in Bezug genommenen Art in Vorschlag zu bringen, die diesen zusätzlichen Montageschritt nicht mehr erfordert.The invention has for its object to propose an electrical terminal of the type referred to in the preamble of claim 1, which no longer requires this additional assembly step.

Die Erfindung löst diese Aufgabe dadurch, daß das Leiterschutzelement des Bügelkörpers durch eine seitliche Öffnung des Isolierkörpers entgegengesetzt der Leiteinsteckrichtung in den Anschlußraum des Klemmkörpers einsteckbar ist.The invention solves this problem in that the conductor protection element of the bracket body can be inserted through a lateral opening of the insulating body in the opposite direction to the direction of the insertion into the terminal space of the clamping body.

Erfindungsgemäß wird demgemäß der Bügelkörper erst später, und zwar nach der Bestückung des Isolierkörpers, mit einem Klemmkörper an in seine Funktionslage gebracht, d.h. mit seinem Leiterschutzelement in den Anschlußraum des bereits in den Isolierkörper verbrachten Klemmkörpers eingeführt. Das Einführen der beiden Teile geschieht in verschiedenen, quer zueinander verlaufenden Richtungen. Hiermit ist eine vollautomatische Bestückung des Isolierkörpers möglich, die keinerlei manuelle oder mechanische Vormontagestationen erfordert. Die Montage geschieht beispielsweise so, daß die Klemmkörper in die Klemmkörperaufnahmen des mit seiner Lötanschlußseite nach oben gehaltenen Isolierkörpers eingelegt werden, woraufhin von der Seite her die Bügelkörper zugeführt werden. Hierdurch ist es auch in rationeller Weise möglich, zu einem Gurt zusammengefaßte Bügelkörper zu verarbeiten.According to the invention, the bracket body is only brought into its functional position later, namely after the insulator has been fitted, with a clamping body, i.e. with its conductor protection element inserted into the terminal space of the clamping body already placed in the insulating body. The two parts are inserted in different, transverse directions. This enables a fully automatic assembly of the insulating body, which does not require any manual or mechanical pre-assembly stations. Assembly takes place, for example, in such a way that the clamping bodies are inserted into the clamping body receptacles of the insulating body which is held with its solder connection side up, whereupon the bracket bodies are fed from the side. As a result, it is also possible in a rational manner to process bracket bodies combined into a belt.

Es ist zwar grundsätzlich nicht neu, bei einer elektrischen Anschlußklemme Kontaktteile quer zur Leitereinsteckrichtung in dem Isolierkörper einzusetzen. Dies zeigt z.B. die DE-B-10 15 890. Gegenstand dieser Druckschrift ist jedoch nicht eine gattungsgemäße Anschlußklemme, sondern eine sogenannte "Anreihklemme", die aus einer Vielzahl einpoliger Module in Schichtbauweise zusammengesteckt wird. Dabei wird eine der verlangten Polzahl entsprechende Zahl von Modulen auf eine gemeinsame Tragschiene aufgeschoben, und die geschlossene Seitenwand des jeweils nächsten Moduls verschließt die offene Seite des vorhergehenden, in die die Kontaktteile quer zur Leiterrichtung eingelegt sind. Bei den Kontaktteilen handelt es sich um einen Klemmkörper mit Lötfahne, Klemmschraube und Wandermutter. Wie beim eingangs erläuterten Stand der Technik müssen auch diese Teile vor der Montage zunächst miteinander verbunden werden. Insofern unterscheidet sich der Stand der Technik gemäß DE-B-10 15 890 von demjenigen z.B. nach der DE-C-25 11 385 im Prinzip nur durch die andere Bestückungsrichtung der auch hier zunächst vormontierten Kontaktteile.In principle, it is not new to use contact parts in the insulating body transversely to the direction of insertion of the conductor in the case of an electrical connecting terminal. This is shown, for example, in DE-B-10 15 890. The subject of this document, however, is not a generic connecting terminal, but rather a so-called "terminal block" which is assembled from a multiplicity of single-pole modules in a layered construction. A number of modules corresponding to the required number of poles is pushed onto a common mounting rail, and the closed side wall of the next module closes the open side of the previous one, into which the contact parts are inserted transversely to the conductor direction. The contact parts are a clamp body with a solder tab, Clamping screw and traveling nut. As with the prior art explained at the outset, these parts must first be connected to one another before assembly. In this respect, the prior art according to DE-B-10 15 890 differs from that, for example according to DE-C-25 11 385, in principle only in the other assembly direction of the contact parts which are also pre-assembled here.

Neu und dementsprechend im Sinne der Aufgabelösung vorteilhaft ist die unterschiedliche Bestückungsrichtung des Klemmkörpers einerseits und des Bügelkörpers andererseits und die Tatsache, daß diese Teile nacheinander getrennt in den Isolierkörper eingeführt werden.New and correspondingly advantageous in the sense of the application solution is the different assembly direction of the clamping body on the one hand and the bracket body on the other hand and the fact that these parts are inserted one after the other into the insulating body.

Es gibt nun verschiedene Möglichkeiten, elektrische Anschlußklemmen nach dem geschilderten grundlegenden Erfindungsprinzip auszubilden bzw. weiterzugestalten.There are now various options for designing or developing electrical connection terminals according to the basic principle of the invention described.

Eine günstige Ausführung besteht darin, daß die der Leitereinstecköffnung gegenüberliegende Seitenwand des Isolierkörpers zwei Öffnungen aufweist, von denen die obere etwa dem Querschnitt des mit seinem freien Schenkel das Leiterschutzelement bildenden Bügelkörpers entspricht und die untere, zum queren Einführen des Lötanschlußstifes, zur Lötanschlußseite des Isolierkörpers hin offen ist, wobei ferner die Möglichkeit besteht, daß sich der Bügelkörper in an sich bekannter Weise mittels wenigstens einer widerhakenartig aus ihm ausgeschnittenen Zunge an einer Innenfläche des Isolierkörpers abstützt und daß diese Zunge am Leiterschutzelement oder an einem zu ihm parallelen Bügelschenkel angebracht ist.A favorable embodiment consists in that the side wall of the insulating body opposite the conductor insertion opening has two openings, of which the upper corresponds approximately to the cross section of the bracket body forming the conductor protection element with its free leg and the lower, for transverse insertion of the soldering connection pin, towards the soldering connection side of the insulating body is open, furthermore there is the possibility that the bracket body is supported in a manner known per se by means of at least one barb cut out from it on an inner surface of the insulating body and that this tongue is attached to the conductor protection element or to a bracket leg parallel to it.

Bei dieser Ausgestaltung kann auf eine die Lötanschlußseite der Anschlußklemme verschließende Bodenplatte verzichtet werden.In this embodiment, a base plate closing the solder connection side of the connection terminal can be dispensed with.

Ist jedoch eine solche Bodenplatte erwünscht, besteht eine vorteilhafte weitere Ausgestaltung darin, daß der Bügelkörper in dem Isolierkörper selbst nur durch Auflage auf einer Unterstützungsfläche in Richtung der Klemmschraube unverrückbar gehalten ist und daß eine Bodenplatte ihn quer dazu unverrückbar hält, indem diese den Lötanschlußstift mit einer Ausnehmung umgreift, wobei es ferner zweckmäßig ist, wenn die Bodenplatte rastschlüssig am Lötanschlußstift und formschlüssig am unterseitigen Rand des Isolierkörpers gehalten ist.However, if such a base plate is desired, an advantageous further embodiment is that the bracket body is held immovably in the insulating body itself only by resting on a support surface in the direction of the clamping screw, and that a base plate holds it immovable transversely thereto by using a soldering pin Grips recess, it is also expedient if the base plate is held in a snap-fit manner on the soldering connection pin and in a form-fitting manner on the underside edge of the insulating body.

Bei dieser Ausführung ist die Bodenplatte selbsttragend am Lötanschlußstift des Bügelkörpers gehalten und braucht nicht mit dem Isolierkörper fest verbunden zu werden. Zwischen Bodenplatte und Isolierkörper findet lediglich eine formschlüssige Verbindung statt, die Verlagerungen der Bodenplatte in ihrer Ebene verhindert und damit gleichzeitig eine entsprechende Verlagerung des Bügelkörpers, der seinerseits gegen Verschiebung in Längsrichtung des Lötanschlußstiftes und somit quer zur Ebene der Bodenplatte durch die Unterstützungsfläche des Isolierkörpers gehalten ist.In this embodiment, the base plate is held self-supporting on the solder pin of the bracket body and does not need to be firmly connected to the insulating body. Only a positive connection takes place between the base plate and the insulating body, which prevents displacement of the base plate in its plane and, at the same time, a corresponding displacement of the bracket body, which in turn is held against displacement in the longitudinal direction of the soldering pin and thus transversely to the level of the base plate by the supporting surface of the insulating body .

Die Erfindung wird nachfolgend anhand zweier in den Zeichnungen dargestellter Ausführungsbeispiele näher erläutert. In den Zeichnungen zeigen:

  • Fig. 1 bei einer ersten Ausführungsform die wesentlichen Einzelteile einer Anschlußklemme und ihre Zuordnung zueinander in einer Explosionsdarstellung,
  • Fig. 2 einen Querschnitt durch eine Anschlußklemme nach Fig. 1,
  • Fig. 3 eine Ansicht in Richtung des Pfeiles 111 in Fig. 2,
  • Fig. 4 eine der Fig. 1 entsprechende Darstellung einer zweiten Ausführungsform,
  • Fig. 5 einen hierzu gehörenden Querschnitt entsprechend dem nach Fig. 2 und
  • Fig. 6 eine Ansicht in Richtung des Pfeiles VI in Fig. 5.
The invention is explained in more detail below with reference to two exemplary embodiments shown in the drawings. The drawings show:
  • 1 in a first embodiment, the essential individual parts of a connection terminal and their assignment to one another in an exploded view,
  • 2 shows a cross section through a connecting terminal according to FIG. 1,
  • 3 is a view in the direction of arrow 111 in FIG. 2,
  • 4 shows a representation corresponding to FIG. 1 of a second embodiment,
  • Fig. 5 is a corresponding cross section corresponding to that of FIG. 2 and
  • 6 is a view in the direction of arrow VI in FIG .. 5

Die Zeichnungen geben die ausgeführte elektrische Anschlußklemme in erheblich vergrößertem Maßstab von etwa 8 : 1 wieder. Derartige Klemmen besitzen üblicherweise einen Isolierkörper mit einer maximalen Außenbreite von ca. 10 mm und einen Kontaktabstand von 5 mm.The drawings show the executed electrical connection terminal on a considerably enlarged scale of approximately 8: 1. Such terminals usually have an insulating body with a maximum outer width of approximately 10 mm and a contact distance of 5 mm.

Jede Anschlußklemme besteht aus einem Isolierkörper 10 mit mehreren Klemmkörperaufnahmen 11, aus je einem jeder Klemmkörperaufnahme 11 zugeordneten Klemmkörper 12 mit einem Anschlußraum 13 zum Einstecken eines elektrischen Leiters und mit einer oberseitigen Gewindebohrung 14 zur verstellbaren Führung einer Klemmschraube 15 sowie schließlich aus einem Bügelkörper 16, der in einstückiger Bauform ein Leiterschutzelement 17 und einen Lötanschlußstift 18 in sich vereinigt. Bei beiden Ausführungsbeispielen besitzt der Bügelkörper 16 etwa die Form eines "?", dessen freie Endschenkel einerseits vom Leiterschutzelement 17 und andererseits vom Lötanschlußstift 18 gebildet sind. Sie verlaufen senkrecht zueinander. Ausgehend vom Lötanschlußstift 18 ist nach einer im wesentlichen rechtwinkligen Abknickung ein zum Leiterschutzelement 17 parallel verlaufender Abschnitt 19 und sodann nach einer wiederum etwa 90° betragenden gegenläufigen Abwinklung ein zum Lötanschlußstift 18 paralleler Abschnitt 20 ausgebildet.Each connection terminal consists of an insulating body 10 with a plurality of clamping body receptacles 11, each of a clamping body 12 assigned to each clamping body receptacle 11 with a connection space 13 for inserting an electrical conductor and with an upper threaded bore 14 for the adjustable guidance of a clamping screw 15 and finally from a bracket body 16, the in a one-piece design, a conductor protection element 17 and a solder connection pin 18 are combined. In both exemplary embodiments, the bow body 16 has approximately the shape of a “?”, The free end leg of which is formed on the one hand by the conductor protection element 17 and on the other hand by the soldering pin 18. They run perpendicular to each other. Starting from the soldering pin 18, a section 19 running parallel to the conductor protection element 17 is formed after an essentially right-angled bend and then a section 20 parallel to the soldering connecting pin 18 is again formed after an opposite bend, which in turn is approximately 90 °.

Der aus Kunststoff bestehende Isolierkörper 10 besitzt eine der Polzahl entsprechende Anzahl von Klemmkörperaufnahmen 11, Klemmkörpern 12, Klemmschrauben 15 und Bügelkörpern 16 und dementsprechend eine Mehrzahl von an einer Gehäuseseite vorgesehenen Leitereinstecköffnungen 21 und oberseitigen Bohrungen 22 zum Einsetzen der Klemmschrauben 15.The insulating body 10 made of plastic has a number of clamping body receptacles 11, clamping bodies 12, clamping screws 15 and bracket bodies 16 corresponding to the number of poles and, accordingly, a plurality of conductor insertion openings 21 provided on one side of the housing and bores 22 on the top side for inserting the clamping screws 15.

Die Ausführung nach den Fig. 4 bis 6 besitzt zusätzlich noch eine Bodenplatte 23 mit einer der Lage und Anzahl der Lötanschlußstifte 18 der Bügelkörper 16 entsprechenden Anzahl von Durchbrechungen 24, deren Querschnitt auf den des freien Endabschnitts eines Lötanschlunstiftes 18 abgestimmt ist.The embodiment according to FIGS. 4 to 6 additionally has a base plate 23 with a number of openings 24 corresponding to the position and number of the solder connection pins 18 of the bracket body 16, the cross section of which corresponds to that of the free end section of a solder connection pin 18 is matched.

Die den Leitereinstecköffnungen 21 gegenüberliegende Seitenwand 25 des Isolierkörpers 10 besitzt im Bereich jeder Klemmkörperaufnahme 11 eine im wesentlichen schlitzförmige Öffnung 25, deren Umfang um ein notwendiges Einsteckspiel geringfügig größer ist als der Querschnittsumfang des Leiterschutzelements 17. Die die Öffnung 28 unterseitig begrenzende nach oben weisende Stegfläche 27 dient als Auflagefläche für das Leiterschutzelement 17 (siehe Fig. 2 und 3 sowie 5 und 6). In einer etwa dem lichten Innenabstand zwischen dem Leiterschutzelement 17 und dem dazu parallel verlaufenden Bügelkörperabschnitt 19 entsprechenden Entfernung von der Fläche 27 ist der Wandabschnitt 28 zur Bildung einer zur Lötanschlußseite hin freien Öffnung 29 abgeschnitten.The side wall 25 of the insulating body 10 opposite the conductor insertion openings 21 has an essentially slot-shaped opening 25 in the area of each clamping body receptacle 11, the circumference of which is a little larger than the cross-sectional circumference of the conductor protection element 17 by a necessary insertion play. The web surface 27 which delimits the opening 28 on the underside serves as a contact surface for the conductor protection element 17 (see FIGS. 2 and 3 and 5 and 6). At a distance from the surface 27 corresponding approximately to the clear internal distance between the conductor protection element 17 and the shackle body section 19 running parallel thereto, the wall section 28 is cut off to form an opening 29 which is free towards the solder connection side.

Bei der Montage der elektrischen Anschlußklemme werden zunächst die einzelnen Klemmkörper 12 von der Lötanschlußseite her in die Klemmkörperaufnahmen 11 eingeführt, was mit geeigneten maschinellen Einrichtungen bei stehendem, liegendem oder auf dem Kopf stehendem Isolierkörper geschehen kann. Unmittelbar darauf oder später kann die Klemmschraube 15 - die in ihrer Endmontagelage im Isolierkörper 10 mit Hilfe von Haltevorsprüngen 30 unverlierbar gehalten ist - wie in den Fig. 2 und 5 dargestellt, zur Verbindung mit dem Klemmkörper 12 ein Stück in dessen Gewinde eingedreht werden. Der so teilmontierten Anschlußklemme wird dann quer zur Bestückungsrichtung des Klemmkörpers 12 die entsprechende Anzahl von insbesondere an einen Gurt angebundenen Bügelkörpern 16 zugeführt, indem diese in Längsrichtung des Leiterschutzelements 17 so zugeführt werden, daß die Leiterschutzelemente 17 durch die Wandöffnung 26 hindurch und in den Anschlußraum 13 des zugehörigen Klemmkörpers 12 eintreten.When assembling the electrical connecting terminal, the individual clamping bodies 12 are first inserted into the clamping body receptacles 11 from the solder connection side, which can be done with suitable mechanical devices when the insulating body is standing, lying or upside down. Immediately afterwards or later, the clamping screw 15 - which is held captive in its final assembly position in the insulating body 10 with the aid of retaining projections 30 - as shown in FIGS. 2 and 5, can be screwed into the thread for connection to the clamping body 12. The so partially assembled terminal is then supplied transversely to the assembly direction of the clamping body 12, the corresponding number of strap bodies 16, in particular connected to a belt, by feeding them in the longitudinal direction of the conductor protection element 17 such that the conductor protection elements 17 through the wall opening 26 and into the connection space 13 of the associated clamp body 12.

Während die Klemmkörper 12 bereits durch die Klemmschraube 13 unverlierbar in ihren Klemmkörperaufnahmen 11 gehalten sind, besitzt bei dem ersten Ausführungsbeispiel der jeweilige Bügelkörper 16 federnde Rastzungen 31 zu seiner Verankerung im Isolierkörper 10. Die Rastzungen 13 befinden sich an dem zum Leiterschutzelement 17 parallel verlaufenden Bügelabschnitt 19 und rasten hinter einen Innenwandvorsprung 32. Die elektrischen Anschlußelemente sind nun insgesamt im Isolierkörper 10 unverlierbar gehalten. Bei Betätigung der Klemmschraube 15 wird der Klemmkörper 12 nach oben geführt ("Fahrstuhlklemme") und klemmt zwischen der nach oben weisenden Innenfläche 32 seines Anschlußraumes 13 und der nach unten weisenden geriffelten Unterfläche 34 des Leiterschutzelements 17 den nicht dargestellten Leiter ein.While the clamping bodies 12 are already held captively in their clamping body receptacles 11 by the clamping screw 13, in the first exemplary embodiment the respective bracket body 16 has resilient latching tongues 31 for anchoring it in the insulating body 10. The latching tongues 13 are located on the bracket section 19 running parallel to the conductor protection element 17 and snap behind an inner wall protrusion 32. The electrical connection elements are now held captive in total in the insulating body 10. When the clamping screw 15 is actuated, the clamping body 12 is guided upward (“elevator clamp”) and clamps the conductor (not shown) between the upwardly facing inner surface 32 of its connection space 13 and the downwardly directed corrugated lower surface 34 of the conductor protection element 17.

Bei dem zweiten Ausführungsbeispiel nach den Fig. 4 bis 6 wird auf die Rastzungen zur Halterung der Bügelkörper 16 verzichtet. Diese sind in Längsrichtung der Klemmschraube 15 bzw. des Lötanschlußstiftes 18 durch Auflage des Leiterschutzelements 17 auf der Stützfläche 27 unverrückbar gehalten. In Querrichtung dazu, also in Leitereinsteckrichtung, geschieht dies mit Hilfe der Bodenplatte 23, die mit ihren Rändern in einer Absatzstufe 35 an der freien Unterseite des Isolierkörpers 10 lose einliegt und durch Rastverbindungen mit den Lötanschlußstiften 18 der Bügelkörper 16 gehalten wird. Zu diesem Zweck sind kleine nach außen weisende Flügel oder Zungen 36 vorgesehen, über die die Ausnehmungen 24 der Bodenplatte 23 gerastet werden. Da der Bügelkörper 16 in Längsrichtung seines Lötanschlußstiftes 18 nicht verlagerbar ist, wird in dieser Richtung auch die Bodenplatte 23 am Platz gehalten. Ihre Querbewegung ist durch die Einlagerung in der Absatzstufe 35 des Isolierkörpers 10 verhindert und dadurch auch eine Querverlagerung des Bügelkörpers 16.In the second embodiment according to FIGS. 4 to 6, the latching tongues for holding the bracket body 16 are dispensed with. These are held immovably in the longitudinal direction of the clamping screw 15 or the soldering pin 18 by resting the conductor protection element 17 on the support surface 27. In the transverse direction, that is, in the direction of insertion of the conductor, this is done with the aid of the base plate 23, which lies loosely with its edges in a step 35 on the free underside of the insulating body 10 and is held in place by latching connections with the solder connection pins 18 of the bracket body 16. For this purpose, small outwardly pointing wings or tongues 36 are provided, via which the recesses 24 of the base plate 23 are snapped. Since the bracket body 16 cannot be displaced in the longitudinal direction of its soldering pin 18, the base plate 23 is also held in place in this direction. Their transverse movement is prevented by the inclusion in the step 35 of the insulating body 10 and thereby also a transverse displacement of the bracket body 16.

Claims (5)

1. Electrical connecting terminal consisting of an insulating block (10) with a number of terminal housings (11) corresponding to the number or contacts, a corresponding number of terminals (12), which are preferably formed as draw sleeves and each of which comprises a wiring space (13) for inserting an electrical conductor and a tapped hole (14) for receiving a terminal screw (15), a respective conductor protection element (17) provided inside the wiring space (13) of a terminal (12), and at least one respective solder terminal pin (18), in which the conductor protection element (17) and the solder terminal pin (18) are formed in one piece as a bow-type member (16) and the terminal (12), which can be inserted in the terminal housing (11) from solder terminal side, is non-detachably retained in the insulating block (10) owing to the bow-type member (16) being secured at least indirectly to or in the insulating block (10), characterised in that the conductor protection element (17) of the bow-type member (16) can be inserted in the wiring space (13) of the terminal (12) through a lateral opening (26) in the insulating block (10) in the direction opposite to that in which the conductor is inserted.
2. Connecting terminal accoding to claim 1, characterised in that the side wall (25) of the insulating block (10) which is opposite the conductor insertion opening (21) comprises two openings (26, 29), the upper (26) one of which corresponds approximately to the cross section of the bow-type member (16), whose free side piece forms the conductor protection element (17), and the lower one of which is open towards the solder terminal side of the insulating block (10) to permit the transverse insertion of the solder terminal pin (18).
3. Connecting terminal according to claim 1 or 2, characterised in that, in a manner known per se, the bow-type member (16) is supported by means of at least one tongue (31), which is cut out of the latter in the manner of a barb, on an internal surface (32) of the insulating block (10), and that this tongue (31) is attached to the conductor protection element (17) or to a side piece (19) of the bow-type member extending parallel to the said element.
4. Connecting terminal according to claim 1 or 2, characterised in that the bow-type member (16) is held in the actual insulating block (10) solely by bearing on a support surface (27) in such a way that it is unable to move in the direction towards the solder terminal side, and that a base plate (23) holds it in such a way that it is unable to move at a right angle to the latter by enclosing the solder terminal pin (18) with a recess (24).
5. Connecting terminal according to claim 1 or 4, characterised in that the base plate (23) is held by a snap-in locking system to the solder terminal pin (18) and in a form-closed manner to the underside edge (35) of the insulating block (10).
EP85103183A 1984-05-09 1985-03-19 Electrical connecting terminal Expired EP0169970B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85103183T ATE27384T1 (en) 1984-05-09 1985-03-19 ELECTRICAL TERMINAL.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19843417010 DE3417010A1 (en) 1984-05-09 1984-05-09 ELECTRICAL TERMINAL
DE3417010 1984-05-09

Publications (2)

Publication Number Publication Date
EP0169970A1 EP0169970A1 (en) 1986-02-05
EP0169970B1 true EP0169970B1 (en) 1987-05-20

Family

ID=6235260

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85103183A Expired EP0169970B1 (en) 1984-05-09 1985-03-19 Electrical connecting terminal

Country Status (4)

Country Link
US (1) US4669806A (en)
EP (1) EP0169970B1 (en)
AT (1) ATE27384T1 (en)
DE (2) DE3417010A1 (en)

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Also Published As

Publication number Publication date
EP0169970A1 (en) 1986-02-05
DE3417010C2 (en) 1987-02-05
ATE27384T1 (en) 1987-06-15
US4669806A (en) 1987-06-02
DE3560190D1 (en) 1987-06-25
DE3417010A1 (en) 1985-11-14

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