EP2614556B1 - Connecting apparatus - Google Patents

Connecting apparatus Download PDF

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Publication number
EP2614556B1
EP2614556B1 EP11757818.7A EP11757818A EP2614556B1 EP 2614556 B1 EP2614556 B1 EP 2614556B1 EP 11757818 A EP11757818 A EP 11757818A EP 2614556 B1 EP2614556 B1 EP 2614556B1
Authority
EP
European Patent Office
Prior art keywords
spring
clamping
section
conductor
spring unit
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.)
Not-in-force
Application number
EP11757818.7A
Other languages
German (de)
French (fr)
Other versions
EP2614556A1 (en
Inventor
Constantin Classen
Stephan Fehling
Herbert Fricke
Walter Hanning
Michael Herrmann
Dietmar Horn
Paulo Russo
Karlo Stjepanovic
Siegfried Storm
Jürgen Ziemke
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.)
Weidmueller Interface GmbH and Co KG
Original Assignee
Weidmueller Interface 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 Weidmueller Interface GmbH and Co KG filed Critical Weidmueller Interface GmbH and Co KG
Publication of EP2614556A1 publication Critical patent/EP2614556A1/en
Application granted granted Critical
Publication of EP2614556B1 publication Critical patent/EP2614556B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—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
    • H01R4/4823—Multiblade 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
    • H01R4/48185—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

Definitions

  • the invention relates to a connection device according to the preamble of claim 1.
  • connection device as for example from the GB 2 298 973 A is known, is used for connection or a contact of an electrical conductor.
  • a stripped or bare electrical conductor is brought into a electrically conductive connection with a contact section.
  • the conductor end to be connected is inserted into the connection device.
  • the connecting device can be opened by an actuator for easy insertion of the conductor and also for pulling it out.
  • connection devices e.g. in automation areas
  • the object of the present invention is therefore to provide an improved connection device.
  • connection device with the features of claim 1.
  • connection device allows an increased contact force on an electrical conductor by a spring unit with at least two spring sections clamps the electrical conductor and at the same time increases the contact force by a compression spring.
  • a connection device comprises: a body having an inner space and an insertion opening for introducing the electrical conductor in an insertion direction into the inner space; a spring unit arranged in the interior for clamping and contacting the electrical conductor; and an actuating device for releasing the spring unit from a clamping position.
  • the spring unit has at least two spring sections, of which at least one is designed as a clamping spring.
  • clamping spring has a self-locking function, which effectively prevents withdrawal of the conductor from the connection device. Furthermore, a so-called tumbling of the conductor is resolved or largely reduced.
  • the clamping spring may be V-shaped, wherein a holding portion allows a simple fixing in the body, an associated arc section is provided a spring action and a clamping section attached thereto with clamping edge for clamping.
  • the clamping edge can also be adapted to a diameter of the conductor to be clamped or connected by appropriate rounding.
  • the contact force can also be increased if one of the at least two spring sections of the spring unit is a clamping spring with a clamping edge for clamping the electrical conductor and another of the at least two spring sections of the spring unit is a reinforcing spring for enhancing the action of the clamping spring.
  • the reinforcing spring may at least partially have the shape of the clamping spring and be arranged directly on it.
  • a spring unit with double V-shaped clamping spring is formed.
  • the spring unit is integrally formed, wherein it has a sigma shape and thereby results in a space-saving design.
  • a clamping spring and a compression spring are connected via a common holding section, which fixes them to the body.
  • the at least two spring sections can also be provided individually. As a result, a large variation of different spring forces is possible.
  • a side plate is arranged in the interior and forms with edges a spring receptacle for the spring unit.
  • one of the edges of the side plate can form a contact portion, against which the electrical conductor can be contacted in the clamping position.
  • an edge of the side plate can form a retaining wall for the spring unit.
  • the spring unit can be loosely or firmly attached to the retaining wall.
  • the holding sections can serve.
  • the actuating device may comprise a plunger with a pressure edge, which is arranged displaceably in the body.
  • the plunger can with the cooperate formed as a clamping spring spring portion of the spring unit.
  • the actuating device and the insertion opening for the conductor to be connected are arranged on the same side of the connecting device, wherein an insertion direction is substantially parallel to a longitudinal axis of the plunger.
  • a baying terminal has at least one connection device described above.
  • FIG. 1 is a schematic perspective side view of a first embodiment of a connecting device 1 according to the invention shown.
  • the connection device 1 here comprises a body 2, an actuating device 7, a spring unit 10 and at least one contact section 13.
  • the connecting device 1 is here shown in an unactuated position, which is also called clamping position, with no electrical conductor is connected. In an actuated position, a conductor can be inserted or removed in an insertion direction 6. In an unactuated position and an inserted conductor of the conductor is connected to the connecting device 1 in the clamping position, wherein an electrical connection between a contact portion of the connecting device 1 and the conductor is made. Rigid conductors can also be inserted directly without actuation.
  • the body 2 is a kind of flat cuboid with a height whose length is about twice as large as its width.
  • the height runs in the FIG. 1 in the insertion direction 6 from top to bottom, the width at right angles to it from left to slightly obliquely bottom right.
  • a depth of the body 2 extends from bottom left to top right and has a length which may be about one fifth of the width.
  • the body 2 is made of an insulating material, such as a suitable plastic, and is on a side 2a, in FIG. 1 the back, closed. At the front side, approximately the upper half is closed as an upper portion 2g having a side 2b, whereas the lower half is exposed and exposing an inner space 3 defined by a lower side 2f, the upper portion 2g and a respective end face 2c, 2d , The upper portion 2g has a top 2e.
  • the sides 2a and 2b are parallel to each other and the end faces 2c, 2d are perpendicular to the sides 2a and 2b.
  • the right end face 2c slightly protrudes at the top 2e, with a portion in the right end portion of the top 2e extending obliquely upward to the higher edge of the right end face 2c.
  • the lower edge of the right end face 2c is separated by an opening 9 over its entire width from the bottom 2f. Through this opening 9 in a shape as a slot, for example, a contact strip with contacts in the interior 3 may be connected.
  • the introduction opening 4 is cylindrical and communicates on its underside with the interior 3 via a passage 5, which is also cylindrical.
  • the insertion opening 4 and the passage 5 serve to receive a conductor 16 (see, for example FIG. 4 ), which in the interior 3 by the spring unit 10 in the connecting device 1 can be connected, which will be explained in more detail below.
  • an actuator 7 is provided, which in a receptacle 7a (see FIG. 5 ) receives a displaceable plunger, which at its upper end an actuating portion 8a and at its lower end, which projects into the inner space 3, a pressure edge 8b for cooperation with the spring unit 10.
  • the plunger 8 is arranged displaceably in the insertion direction 6 and opposite to this in the receptacle 7a. Its function will be described in detail below.
  • the actuator 7 is also accessible and operable in the direction of insertion 6.
  • the located in the interior 3 of the body 2 spring unit 10 is in the in FIG. 1 illustrated first embodiment of two springs or spring sections, namely an upper spring portion, an upper spring clip 11 and a lower spring portion, a compression spring arranged below 12.
  • This spring unit 10 is here made in one piece, wherein the two spring portions clamping spring 11 and compression spring 12 connected to each other are or merge into each other.
  • the spring unit 10 is referred to herein as a "sigma spring” with a “sigma shape”.
  • a width of the spring unit 10 extends perpendicular to the surface of the side 2a, being slightly smaller than the depth of the inner space 3.
  • Both springs 11 and 12 are connected via their holding portions 11a and 12a. These holding portions 11a and 12a extend in a certain section parallel to the right end face 2c.
  • the clamping spring 11 is V-shaped, wherein one leg of the holding portion 11a and another leg is a clamping portion 11c, which are both connected via an arc portion 11b. From the holding portion 11a, the semicircular arc portion 11b extends leftward counterclockwise in the inner space 3. The arc portion 11b then goes into the straight clamping portion directed downward at an angle of about 45 ° 11c, which ends in a clamping edge 11d.
  • the clamping edge 11d extends across the width of the spring unit 10.
  • the clamping edge 11d may also be arcuate.
  • the arranged on the holding portion 11 a and connected thereto holding portion 12 a of the compression spring goes down in an arc portion 12 b clockwise about the same radius continues upward in a clockwise direction in a sheet section 12 c in the interior 3 and approximately below the center of Clamping portion 11c of the clamping spring ends.
  • a contact section 13 with a clamping region 13a and an underlying pressure region 13b is arranged on the inner surface of the left end side 2d parallel thereto.
  • a retaining wall 14 is arranged parallel to this on the inner surface of the right end face 2c parallel to this.
  • a bottom 15a lies on the inner surface of the lower surface 2f parallel thereto.
  • the contact portion 13, retaining wall 14 and bottom 15 a are formed integrally with a side plate 15, wherein they are folded edges of this side plate 15.
  • the side plate 15 forms with these edges a kind of spring receptacle for the spring unit 10 and is located on the inner surface of the side 2a within the interior 3.
  • the side plate 15 surrounds together with these edges, the spring unit 10 on four sides.
  • the retaining wall 14 can be connected to the holding portions 11 a and 12 a (see also FIG. 5 ) be loose or firmly connected.
  • the holding sections 11a and 12a are supported on the retaining wall 14 on the end face 2c of the body 2. At the bottom 15a, the arc section 12b of the compression spring 12 is supported.
  • the printed sheet section 12c has a convex printing section 12d on its outer surface facing the contact section 13.
  • This pressure section 12d is here spaced apart from the pressure region 13b of the contact section 13, but can also rest against the pressure region 13b of the contact section 13 in this unactuated position of the connection device 1 shown.
  • the clamping edge 11d is in this shown unactuated position of the connection device 1 at a small distance to the clamping region 13a of the contact portion 13 or is applied to this.
  • FIG. 2 shows the first embodiment FIG. 1 before introducing a leader.
  • a tool 17, here a screwdriver is about to be inserted into the operating portion 8a of the plunger 8, to push it in the insertion direction 6 down into the upper portion 2b of the body 2.
  • the operating portion 8a may have a corresponding slot or the like for a corresponding tool.
  • FIG. 3 shows the first embodiment FIG. 2 when introducing a conductor 16.
  • the conductor 16 has an electrical conductor element 16a, which is freed from an insulation 16b of the conductor 16 over a certain length.
  • the conductor element 16a may be a rigid wire or a stranded wire.
  • the tool 17 is inserted in the insertion direction 6 in the operating portion 8a of the plunger 8 and has pushed by actuation of the plunger 8 in the interior 3 of the body 2.
  • the pressure edge 8b of the lower end of the plunger 8 cooperates with the surface of the arc portion 11b of the clamp spring 11 of the spring unit 10 so that the clamp portion 11c is bent downward against a spring force of the arc portion 11b and simultaneously on the surface of the press sheet portion 12c of the compression spring 12 rests and this against the spring force of the sheet section 12c and the sheet portion 12b of the compression spring 12 is compressed.
  • the distances of the clamping edge 11d of the clamping spring 11 and the pressure section 12d of the compression spring 12 are enlarged to the contact portion 13 so that insertion of the conductor 16 with the stripped conductor element 16a through the insertion opening 4 and the passage 5 in the interior 3 is made possible.
  • FIG. 4 An end position of the conductor 16 thus inserted into the terminal device 1 is shown in FIG FIG. 4 in a side view and in FIG. 5 shown in a sectional view.
  • the conductor 16 is inserted with its stripped conductor element 16a in the interior 3, abuts with a longitudinal side of the contact portion 13 and abuts with its end against the bottom 15a.
  • the tool 17 is removed, the downwardly pressed sheet portion 11b of the clamping spring 11 springs back and pushes the plunger 8 back up.
  • the conductor element 16a is pressed against the contact section 13 via the clamping edge 11d of the clamping spring 11 by its spring force or the spring force of the arc section 11b.
  • the clamping portion 11c of the clamping spring 11 is at an angle to the insertion direction 6, in which the longitudinal axis of the conductor element 16a extends.
  • This angle depends on the thickness, eg of the diameter, of the conductor element 16a and is in the range of approximately 40 ... 45 °. If, in this connected position of the conductor element 16a in the connection device 1, attempts are then made to pull the conductor element 16a out of the connection device 1 against the insertion direction 6, a function of the self-locking of the clamping spring 11 counteracts withdrawal and prevents this by the clamping edge 11d with the spring force of the clamping spring 11 acts on the conductor element 16a.
  • the curved portion 11 with its convex outer region abut against the pressure edge 8b of the plunger 8 and be held, wherein the plunger 8 on an inner surface of the upper portion 2b of the body 2 with a plunger projection 8d into abutment and on a further upward movement is prevented against the insertion direction 6.
  • a contact force between the inserted and connected conductor element 16a is enhanced by the pressure of the convex pressure portion 12d of the press sheet portion 12c of the compression spring 12.
  • the pressing portion 12d is pressed against the conductor member 16a in a substantially perpendicular direction to the insertion direction 6 by the spring force of the press sheet portion 12c, and presses this in addition to the clamp spring 11 against the press portion 13b of the contact portion 13, with the press portion 13b below the clamp portion 13a.
  • the latter presses in a line-shaped or planar manner against the conductor element 16a.
  • the receptacle 7a of the actuating device 7 is shown, which is formed in the upper area in the body 2 wider than in the underlying area to the interior 3 with a stop 7b.
  • the stopper 7b forms a stop for a shoulder 8c of the plunger 8 displaceably arranged in the receptacle 7a in the insertion direction 6, in order to limit a movement in the insertion direction 6.
  • the plunger has the plunger projection 8d which limits movement of the plunger 8 against the insertion direction 6 by coming into abutment with a portion of the inner surface of the upper portion 2d, which is shown here.
  • This section is here an edge of opening 7a opening into the interior 3.
  • the holding portions 11a and 12a of the spring unit 10 have a recess 19, in which a nose 14a of the retaining wall 14 engages.
  • the spring unit 10 is fixed.
  • Recess 19 and nose 14a can form a positive connection.
  • the spring unit 10 is fixedly connected to the retaining wall 14 at one or more points, for example by riveting.
  • FIG. 6 illustrates a second embodiment of the connecting device 1 according to the invention in a sectional view with a connected conductor 16.
  • the spring unit 10 of two individual springs namely the clamping spring 11 and the compression spring 12 is constructed.
  • the clamping spring 11 is arranged with its holding portion 11a on the holding portion 12a of the compression spring 12, wherein between the holding portions 11a and 12a, a separation region 20 is located.
  • the holding portions 11a and 12a are respectively attached to the holding wall 14 as described above.
  • the arc portion 11b of the clamping spring 11 is arranged in this second embodiment with its convex, overhead outer side of a correspondingly shaped contact portion 3a of the inner surface of the upper portion 2b in the interior 3 fitting.
  • a third embodiment shows FIG. 7 in a schematic perspective side view of the connecting device 1 according to the invention.
  • the spring unit 10 consists of the V-shaped clamping spring 11 and a reinforcing spring 18, which is also V-shaped, and below the clamping spring 11 is arranged directly adjacent to this.
  • the holding portion 11a of the clamping spring 11 extends along the entire length of the retaining wall 14 in the insertion direction 6, wherein a holding portion 18a of the reinforcing spring 18 has approximately two thirds of the length of the retaining wall 14 and is disposed lying on the holding portion 11a of the clamping spring 11.
  • the holding portion 18a of the reinforcing spring 18 is further in the interior 3 as the holding portion 11a of the clamping spring 11.
  • An arc portion 18b of the reinforcing spring 18 nestles from the interior 3 down to the arc portion 11b of the clamping spring 11 and continues on the underside of the clamping spring eleventh lying with a pressure section 18 c, which ends approximately in the last quarter of the clamping portion 11 c of the clamping spring 11.
  • the reinforcing spring 18 has a particularly reinforcing effect with larger wire diameters of a conductor element 16a, for which purpose the length of the pressure section 18c of the reinforcing spring 18 can be adapted to different diameters of conductor elements 16a.
  • FIG. 8 shows the third embodiment similar FIG. 3 at the introduction of the conductor 16 in a schematic perspective view.
  • the arc portion 11b of the clamping spring 11 abuts against the abutment portion 3a of the upper portion 2b of the body 2 as in the second embodiment.
  • the actuating device 7 is also actuated as already described above and acts on the spring unit 10 by means of the plunger 8, that the conductor element 16 a between the clamping edge 11 d of the clamping spring 11 and the clamping portion 13 a of the contact portion 13 can be inserted through the insertion opening 4 and the passage 5 in the interior 3.
  • the conductor element 16a is connected in the connecting device 1, such as FIGS. 9 and 10 similar to FIG. 4 and 5 in a side view and in a sectional view. Except for the compression spring 12, the description applies to FIG. 4 and 5 also for FIGS. 9 and 10 and should not be repeated here.
  • the holding portions 11a and 18a of the spring unit 10 are each provided with a recess 15 which cooperates with a nose 14a of the retaining wall 14.
  • the spring unit 10 may consist of a clamping spring 11, a compression spring 12 and a reinforcing spring 18.
  • connection devices 1 can be designed as a series terminal.

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

Description

Die Erfindung betrifft eine Anschlussvorrichtung nach dem Oberbegriff des Anspruchs 1.The invention relates to a connection device according to the preamble of claim 1.

Eine derartige Anschlussvorrichtung, wie sie z.B. aus der GB 2 298 973 A bekannt ist, wird zum Anschluss bzw. einer Kontaktierung eines elektrischen Leiters verwendet. In einer Klemmstellung ist ein abisolierter oder blanker elektrischer Leiter mit einem Kontaktabschnitt in elektrisch leitende Verbindung gebracht. Dazu wird das anzuschließende Leiterende in die Anschlussvorrichtung eingeführt. Die Anschlussvorrichtung kann zur leichten Einführung des Leiters und auch zum Herausziehen desselben durch eine Betätigungseinrichtung geöffnet werden.Such a connection device, as for example from the GB 2 298 973 A is known, is used for connection or a contact of an electrical conductor. In a clamping position, a stripped or bare electrical conductor is brought into a electrically conductive connection with a contact section. For this purpose, the conductor end to be connected is inserted into the connection device. The connecting device can be opened by an actuator for easy insertion of the conductor and also for pulling it out.

Ein kontinuierlich steigender Bedarf für derartige Anschlussvorrichtungen, z.B. in Automatisierungsbereichen, ergibt die Forderung nach verbesserten Anschlussvorrichtungen hinsichtlich geringer Teilezahl, kleiner Bauweise sowie sicherer und einfacher Handhabung.A continuously increasing demand for such connection devices, e.g. in automation areas, results in the demand for improved connection devices in terms of small number of parts, small size and safe and easy handling.

Die Aufgabe der vorliegenden Erfindung besteht daher darin, eine verbesserte Anschlussvorrichtung zu schaffen.The object of the present invention is therefore to provide an improved connection device.

Die Aufgabe wird durch eine Anschlussvorrichtung mit den Merkmalen des Anspruchs 1 gelöst.The object is achieved by a connection device with the features of claim 1.

Die Anschlussvorrichtung ermöglicht eine verstärkte Kontaktkraft auf einen elektrischen Leiter, indem eine Federeinheit mit mindestens zwei Federabschnitten den elektrischen Leiter klemmt und gleichzeitig die Kontaktkraft durch eine Druckfeder erhöht.The connection device allows an increased contact force on an electrical conductor by a spring unit with at least two spring sections clamps the electrical conductor and at the same time increases the contact force by a compression spring.

Eine erfindungsgemäße Anschlussvorrichtung weist auf:
einen Körper mit einem Innenraum und einer Einführungsöffnung zur Einführung des elektrischen Leiters in einer Einführungsrichtung in den Innenraum; eine im Innenraum angeordnete Federeinheit zur Klemmung und Kontaktierung des elektrischen Leiters; und eine Betätigungseinrichtung zur Lösung der Federeinheit aus einer Klemmstellung. Die Federeinheit weist mindestens zwei Federabschnitte auf, von denen mindestens einer als Klemmfeder ausgebildet ist.A connection device according to the invention comprises:
a body having an inner space and an insertion opening for introducing the electrical conductor in an insertion direction into the inner space; a spring unit arranged in the interior for clamping and contacting the electrical conductor; and an actuating device for releasing the spring unit from a clamping position. The spring unit has at least two spring sections, of which at least one is designed as a clamping spring.

Ein weiterer Vorteil besteht darin, dass die Klemmfeder eine Selbsthemmungsfunktion besitzt, die ein Herausziehen des Leiters aus der Anschlussvorrichtung wirkungsvoll verhindert. Weiterhin wird auch ein so genanntes Taumeln des Leiters behoben bzw. weitestgehend reduziert.Another advantage is that the clamping spring has a self-locking function, which effectively prevents withdrawal of the conductor from the connection device. Furthermore, a so-called tumbling of the conductor is resolved or largely reduced.

Die Klemmfeder kann V-förmig ausgebildet sein, wobei ein Halteabschnitt eine einfache Festlegung in dem Körper ermöglicht, ein damit verbundener Bogenabschnitt eine Federwirkung und ein daran angebrachter Klemmabschnitt mit Klemmkante zur Klemmung vorgesehen ist. Die Klemmkante kann auch einem Durchmesser des zu klemmenden bzw. anzuschließenden Leiters durch entsprechende Rundung angepasst sein.The clamping spring may be V-shaped, wherein a holding portion allows a simple fixing in the body, an associated arc section is provided a spring action and a clamping section attached thereto with clamping edge for clamping. The clamping edge can also be adapted to a diameter of the conductor to be clamped or connected by appropriate rounding.

Die Kontaktkraft kann auch erhöht werden, wenn einer der mindestens zwei Federabschnitte der Federeinheit eine Klemmfeder mit einer Klemmkante zur Klemmung des elektrischen Leiters und ein anderer der mindestens zwei Federabschnitte der Federeinheit eine Verstärkungsfeder zur Verstärkung der Wirkung der Klemmfeder ist. Dabei kann die Verstärkungsfeder die Form der Klemmfeder zumindest teilweise besitzen und direkt an ihr angeordnet sein. So wird eine Federeinheit mit Doppel-V-förmiger Klemmfeder gebildet.The contact force can also be increased if one of the at least two spring sections of the spring unit is a clamping spring with a clamping edge for clamping the electrical conductor and another of the at least two spring sections of the spring unit is a reinforcing spring for enhancing the action of the clamping spring. In this case, the reinforcing spring may at least partially have the shape of the clamping spring and be arranged directly on it. Thus, a spring unit with double V-shaped clamping spring is formed.

In einer Ausführung ist die Federeinheit einstückig ausgebildet, wobei sie eine Sigmaform aufweist und dadurch eine platzsparende Ausführung ergibt. Zum Beispiel sind eine Klemmfeder und eine Druckfeder über einen gemeinsamen Halteabschnitt verbunden, welcher sie am Körper festlegt.In one embodiment, the spring unit is integrally formed, wherein it has a sigma shape and thereby results in a space-saving design. For example, a clamping spring and a compression spring are connected via a common holding section, which fixes them to the body.

Alternativ können die mindestens zwei Federabschnitte auch einzeln vorgesehen sein. Dadurch ist eine große Variation unterschiedlicher Federkräfte möglich.Alternatively, the at least two spring sections can also be provided individually. As a result, a large variation of different spring forces is possible.

In einer bevorzugten Ausführung ist eine Seitenplatte im Innenraum angeordnet und bildet mit Rändern eine Federaufnahme für die Federeinheit. Hierbei kann einer der Ränder der Seitenplatte einen Kontaktabschnitt bilden, gegen welchen der elektrische Leiter in der Klemmstellung kontaktierbar ist. Für eine weitere Platzeinsparung und geringe Teilezahl kann ein Rand der Seitenplatte eine Haltewand für die Federeinheit bilden. Die Federeinheit kann dabei lose oder fest an der Haltewand angebracht sein. Dazu können die Halteabschnitte dienen.In a preferred embodiment, a side plate is arranged in the interior and forms with edges a spring receptacle for the spring unit. In this case, one of the edges of the side plate can form a contact portion, against which the electrical conductor can be contacted in the clamping position. For a further space saving and small number of parts, an edge of the side plate can form a retaining wall for the spring unit. The spring unit can be loosely or firmly attached to the retaining wall. For this purpose, the holding sections can serve.

Die Betätigungseinrichtung kann einen Stößel mit einer Druckkante umfassen, welcher in dem Körper verschiebbar angeordnet ist. Der Stößel kann dabei mit dem als Klemmfeder ausgebildeten Federabschnitt der Federeinheit zusammenwirken.The actuating device may comprise a plunger with a pressure edge, which is arranged displaceably in the body. The plunger can with the cooperate formed as a clamping spring spring portion of the spring unit.

Die Betätigungseinrichtung und die Einführungsöffnung für den anzuschließenden Leiter sind auf der gleichen Seite der Anschlussvorrichtung angeordnet, wobei eine Einführungsrichtung im Wesentlichen parallel zu einer Längsachse des Stößels verläuft. Somit ist eine einfache und leichte Betätigung möglich.The actuating device and the insertion opening for the conductor to be connected are arranged on the same side of the connecting device, wherein an insertion direction is substantially parallel to a longitudinal axis of the plunger. Thus, a simple and easy operation is possible.

Eine Anreihklemme weist zumindest eine oben beschriebene Anschlussvorrichtung auf.A baying terminal has at least one connection device described above.

Anhand beispielhafter Ausführungen wird die Erfindung mit Bezug auf die beigefügten Zeichnungen näher erläutert. Hierbei zeigen:

Figur 1
eine schematische perspektivische Seitenansicht eines ersten Ausführungsbeispiels einer erfindungsgemäßen Anschlussvorrichtung;
Figur 2
das erste Ausführungsbeispiel nach Figur 1 vor Einführung eines Leiters;
Figur 3
das erste Ausführungsbeispiel nach Figur 2 bei Einführung eines Leiters;
Figur 4 und 5
das erste Ausführungsbeispiel nach Figur 3 mit einem angeschlossenen Leiter in einer Seitenansicht und in einer Schnittansicht;
Figur 6
ein zweites Ausführungsbeispiel der erfindungsgemäßen Anschlussvorrichtung in einer Schnittansicht mit einem angeschlossenen Leiter;
Figur 7
eine schematische perspektivische Seitenansicht eines dritten Ausführungsbeispiels der erfindungsgemäßen Anschlussvorrichtung;
Figur 8
das dritte Ausführungsbeispiel nach Figur 7 bei Einführung eines Leiters; und
Figur 9 und 10
das dritte Ausführungsbeispiel nach Figur 8 mit einem angeschlossenen Leiter in einer Seitenansicht und in einer Schnittansicht.
By way of exemplary embodiments, the invention will be explained in more detail with reference to the accompanying drawings. Hereby show:
FIG. 1
a schematic perspective side view of a first embodiment of a connecting device according to the invention;
FIG. 2
the first embodiment according to FIG. 1 before introducing a leader;
FIG. 3
the first embodiment according to FIG. 2 when introducing a leader;
FIGS. 4 and 5
the first embodiment according to FIG. 3 with a connected conductor in a side view and in a sectional view;
FIG. 6
A second embodiment of the connecting device according to the invention in a sectional view with a connected conductor;
FIG. 7
a schematic perspective side view of a third embodiment of the connecting device according to the invention;
FIG. 8
the third embodiment according to FIG. 7 when introducing a leader; and
FIGS. 9 and 10
the third embodiment according to FIG. 8 with a connected conductor in a side view and in a sectional view.

In Figur 1 ist eine schematische perspektivische Seitenansicht eines ersten Ausführungsbeispiels einer erfindungsgemäßen Anschlussvorrichtung 1 gezeigt.In FIG. 1 is a schematic perspective side view of a first embodiment of a connecting device 1 according to the invention shown.

Die Anschlussvorrichtung 1 umfasst hier einen Körper 2, eine Betätigungseinrichtung 7, eine Federeinheit 10 und mindestens einen Kontaktabschnitt 13. Die Anschlussvorrichtung 1 ist hier in einer unbetätigten Stellung, die auch Klemmstellung genannt wird, gezeigt, wobei kein elektrischer Leiter angeschlossen ist. Bei einer betätigten Stellung kann ein Leiter in einer Einführungsrichtung 6 eingeführt oder entfernt werden. Bei einer unbetätigten Stellung und einem eingeführten Leiter ist der Leiter an die Anschlussvorrichtung 1 in der Klemmstellung angeschlossen, wobei eine elektrische Verbindung zwischen einem Kontaktabschnitt der Anschlussvorrichtung 1 und dem Leiter hergestellt ist. Starre Leiter können auch direkt ohne Betätigung eingeführt werden.The connection device 1 here comprises a body 2, an actuating device 7, a spring unit 10 and at least one contact section 13. The connecting device 1 is here shown in an unactuated position, which is also called clamping position, with no electrical conductor is connected. In an actuated position, a conductor can be inserted or removed in an insertion direction 6. In an unactuated position and an inserted conductor of the conductor is connected to the connecting device 1 in the clamping position, wherein an electrical connection between a contact portion of the connecting device 1 and the conductor is made. Rigid conductors can also be inserted directly without actuation.

Der Körper 2 ist eine Art flacher Quader mit einer Höhe, deren Länge etwa doppelt so groß ist wie seine Breite. Die Höhe verläuft in der Figur 1 in der Einführungsrichtung 6 von oben nach unten, die Breite rechtwinklig dazu von links nach leicht schräg rechts unten. Eine Tiefe des Körpers 2 verläuft von links unten nach rechts oben und weist eine Länge auf, die etwa ein Fünftel der Breite betragen kann.The body 2 is a kind of flat cuboid with a height whose length is about twice as large as its width. The height runs in the FIG. 1 in the insertion direction 6 from top to bottom, the width at right angles to it from left to slightly obliquely bottom right. A depth of the body 2 extends from bottom left to top right and has a length which may be about one fifth of the width.

Der Körper 2 ist aus einem Isolationswerkstoff, z.B. ein geeigneter Kunststoff, und ist an einer Seite 2a, in Figur 1 die hinten liegende, geschlossen. An der Vorderseite ist etwa die obere Hälfte als ein oberer Abschnitt 2g mit einer Seite 2b geschlossen, wohingegen die untere Hälfte offen liegt und einen Innenraum 3 freigibt, der von einer Unterseite 2f, dem oberen Abschnitt 2g und jeweils einer Stirnseite 2c, 2d festgelegt ist. Der obere Abschnitt 2g weist eine Oberseite 2e auf. Die Seiten 2a und 2b liegen parallel zueinander und die Stirnseiten 2c, 2d verlaufen senkrecht zu den Seiten 2a und 2b. Die rechte Stirnseite 2c steht an der Oberseite 2e etwas über, wobei ein Abschnitt im rechten Endbereich der Oberseite 2e schräg nach oben zu der höher gelegenen Kante der rechten Stirnseite 2c verläuft. Die Unterkante der rechten Stirnseite 2c ist durch eine Öffnung 9 über ihre gesamte Breite von der Unterseite 2f getrennt. Durch diese Öffnung 9 in einer Gestalt als Schlitz kann z.B. ein Kontaktstreifen mit Kontakten im Innenraum 3 verbunden sein.The body 2 is made of an insulating material, such as a suitable plastic, and is on a side 2a, in FIG. 1 the back, closed. At the front side, approximately the upper half is closed as an upper portion 2g having a side 2b, whereas the lower half is exposed and exposing an inner space 3 defined by a lower side 2f, the upper portion 2g and a respective end face 2c, 2d , The upper portion 2g has a top 2e. The sides 2a and 2b are parallel to each other and the end faces 2c, 2d are perpendicular to the sides 2a and 2b. The right end face 2c slightly protrudes at the top 2e, with a portion in the right end portion of the top 2e extending obliquely upward to the higher edge of the right end face 2c. The lower edge of the right end face 2c is separated by an opening 9 over its entire width from the bottom 2f. Through this opening 9 in a shape as a slot, for example, a contact strip with contacts in the interior 3 may be connected.

Von der Oberseite 2e her ist auf der in der Figur 1 linken Seite eine Einführungsöffnung 4 senkrecht in der Einführungsrichtung 6 in den oberen Abschnitt 2g eingeformt. Die Einführungsöffnung 4 ist zylinderförmig und kommuniziert an ihrer Unterseite mit dem Innenraum 3 über eine Durchführung 5, die auch zylindrisch ist. Die Einführungsöffnung 4 und die Durchführung 5 dienen zur Aufnahme eines Leiters 16 (siehe z.B. Figur 4), welcher im Innenraum 3 durch die Federeinheit 10 in der Anschlussvorrichtung 1 anschließbar ist, was weiter unten noch näher erläutert wird.From the top 2e ago is on in the FIG. 1 left side an insertion opening 4 formed vertically in the insertion direction 6 in the upper portion 2g. The introduction opening 4 is cylindrical and communicates on its underside with the interior 3 via a passage 5, which is also cylindrical. The insertion opening 4 and the passage 5 serve to receive a conductor 16 (see, for example FIG. 4 ), which in the interior 3 by the spring unit 10 in the connecting device 1 can be connected, which will be explained in more detail below.

In dem rechten Bereich des oberen Abschnitts 2g des Körpers 2 ist eine Betätigungseinrichtung 7 vorgesehen, welche in einer Aufnahme 7a (siehe Figur 5) einen verschiebbaren Stößel aufnimmt, der an seinem oberen Ende einen Betätigungsabschnitt 8a und an seinem unteren Ende, das in den Innenraum 3 hineinragt, eine Druckkante 8b zur Zusammenwirkung mit der Federeinheit 10 aufweist. Der Stößel 8 ist in Einführungsrichtung 6 und entgegengesetzt zu dieser in der Aufnahme 7a verschiebbar angeordnet. Seine Funktion wird unten noch im Detail beschrieben. Die Betätigungseinrichtung 7 ist auch in Einführungsrichtung 6 erreichbar und betätigbar.In the right region of the upper portion 2g of the body 2, an actuator 7 is provided, which in a receptacle 7a (see FIG. 5 ) receives a displaceable plunger, which at its upper end an actuating portion 8a and at its lower end, which projects into the inner space 3, a pressure edge 8b for cooperation with the spring unit 10. The plunger 8 is arranged displaceably in the insertion direction 6 and opposite to this in the receptacle 7a. Its function will be described in detail below. The actuator 7 is also accessible and operable in the direction of insertion 6.

Die in dem Innenraum 3 des Körpers 2 befindliche Federeinheit 10 besteht in dem in Figur 1 dargestellten ersten Ausführungsbeispiel aus zwei Federn oder Federabschnitten, nämlich aus einem oberen Federabschnitt, einer oben liegenden Klemmfeder 11 und einem unteren Federabschnitt, einer unten angeordneten Druckfeder 12. Diese Federeinheit 10 ist hier einstückig ausgeführt, wobei die beiden Federabschnitte Klemmfeder 11 und Druckfeder 12 miteinander verbunden sind oder ineinander übergehen. Die Federeinheit 10 wird hier als "Sigmafeder" mit einer "Sigmaform" bezeichnet. Eine Breite der Federeinheit 10 erstreckt sich senkrecht zu der Fläche der Seite 2a, wobei sie etwas geringer als die Tiefe des Innenraums 3 ist. Beide Federn 11 und 12 sind über ihre Halteabschnitte 11a und 12a verbunden. Diese Halteabschnitte 11a und 12a verlaufen in einem bestimmten Abschnitt parallel zu der rechten Stirnseite 2c.The located in the interior 3 of the body 2 spring unit 10 is in the in FIG. 1 illustrated first embodiment of two springs or spring sections, namely an upper spring portion, an upper spring clip 11 and a lower spring portion, a compression spring arranged below 12. This spring unit 10 is here made in one piece, wherein the two spring portions clamping spring 11 and compression spring 12 connected to each other are or merge into each other. The spring unit 10 is referred to herein as a "sigma spring" with a "sigma shape". A width of the spring unit 10 extends perpendicular to the surface of the side 2a, being slightly smaller than the depth of the inner space 3. Both springs 11 and 12 are connected via their holding portions 11a and 12a. These holding portions 11a and 12a extend in a certain section parallel to the right end face 2c.

Die Klemmfeder 11 ist V-förmig ausgebildet, wobei ein Schenkel der Halteabschnitt 11a und ein weiterer Schenkel ein Klemmabschnitt 11c ist, welche beide über einen Bogenabschnitt 11b verbunden sind. Von dem Halteabschnitt 11a aus erstreckt sich der halbkreisförmige Bogenabschnitt 11b nach links gegen den Uhrzeigersinn in dem Innenraum 3. Der Bogenabschnitt 11b geht dann in den in einem Winkel von etwa 45° nach links unten gerichteten, geraden Klemmabschnitt 11c über, der in einer Klemmkante 11d endet. Die Klemmkante 11d verläuft über die Breite der Federeinheit 10. Die Klemmkante 11d kann auch bogenförmig sein.The clamping spring 11 is V-shaped, wherein one leg of the holding portion 11a and another leg is a clamping portion 11c, which are both connected via an arc portion 11b. From the holding portion 11a, the semicircular arc portion 11b extends leftward counterclockwise in the inner space 3. The arc portion 11b then goes into the straight clamping portion directed downward at an angle of about 45 ° 11c, which ends in a clamping edge 11d. The clamping edge 11d extends across the width of the spring unit 10. The clamping edge 11d may also be arcuate.

Der am Halteabschnitt 11a angeordnete und mit diesem verbundene Halteabschnitt 12a der Druckfeder geht nach unten in einen Bogenabschnitt 12b im Uhrzeigersinn über, der in etwa mit gleichem Radius weiter nach oben im Uhrzeigersinn in einen Druckbogenabschnitt 12c in dem Innenraum 3 verläuft und ungefähr unterhalb der Mitte des Klemmabschnitts 11c der Klemmfeder endet.The arranged on the holding portion 11 a and connected thereto holding portion 12 a of the compression spring goes down in an arc portion 12 b clockwise about the same radius continues upward in a clockwise direction in a sheet section 12 c in the interior 3 and approximately below the center of Clamping portion 11c of the clamping spring ends.

Innerhalb des Innenraums 3 ist an der Innenfläche der linken Stirnseite 2d parallel zu dieser ein Kontaktabschnitt 13 mit einem Klemmbereich 13a und einem darunter liegenden Druckbereich 13b angeordnet. In gleicher Weise ist gegenüberliegend an der Innenfläche der rechten Stirnseite 2c parallel zu dieser eine Haltewand 14 angeordnet. Und rechtwinklig dazu liegt ein Boden 15a auf der Innenfläche der Unterseite 2f parallel zu dieser. Der Kontaktabschnitt 13, Haltewand 14 und Boden 15a sind einstückig mit einer Seitenplatte 15 ausgebildet, wobei sie umgekantete Ränder dieser Seitenplatte 15 sind. Die Seitenplatte 15 bildet mit diesen Rändern eine Art Federaufnahme für die Federeinheit 10 und liegt an der Innenfläche der Seite 2a innerhalb des Innenraums 3. Die Seitenplatte 15 umgibt zusammen mit diesen Rändern die Federeinheit 10 auf vier Seiten. Die Haltewand 14 kann mit den Halteabschnitten 11a und 12a (siehe auch Figur 5) locker oder fest verbunden sein. Die Halteabschnitte 11a und 12a stützen sich über die Haltewand 14 an der Stirnseite 2c des Körpers 2 ab. An dem Boden 15a stützt sich der Bogenabschnitt 12b der Druckfeder 12 ab.Within the interior space 3, a contact section 13 with a clamping region 13a and an underlying pressure region 13b is arranged on the inner surface of the left end side 2d parallel thereto. In the same way, a retaining wall 14 is arranged parallel to this on the inner surface of the right end face 2c parallel to this. And perpendicular thereto, a bottom 15a lies on the inner surface of the lower surface 2f parallel thereto. The contact portion 13, retaining wall 14 and bottom 15 a are formed integrally with a side plate 15, wherein they are folded edges of this side plate 15. The side plate 15 forms with these edges a kind of spring receptacle for the spring unit 10 and is located on the inner surface of the side 2a within the interior 3. The side plate 15 surrounds together with these edges, the spring unit 10 on four sides. The retaining wall 14 can be connected to the holding portions 11 a and 12 a (see also FIG. 5 ) be loose or firmly connected. The holding sections 11a and 12a are supported on the retaining wall 14 on the end face 2c of the body 2. At the bottom 15a, the arc section 12b of the compression spring 12 is supported.

Der Druckbogenabschnitt 12c weist an seiner zu dem Kontaktabschnitt 13 gerichteten Außenfläche einen konvexen Druckabschnitt 12d auf. Dieser Druckabschnitt 12d ist hier zu dem Druckbereich 13b des Kontaktabschnitts 13 beabstandet, kann aber auch in dieser gezeigten unbetätigten Stellung der Anschlussvorrichtung 1 an dem Druckbereich 13b des Kontaktabschnitts 13 anliegen.The printed sheet section 12c has a convex printing section 12d on its outer surface facing the contact section 13. This pressure section 12d is here spaced apart from the pressure region 13b of the contact section 13, but can also rest against the pressure region 13b of the contact section 13 in this unactuated position of the connection device 1 shown.

Die Klemmkante 11d befindet sich in dieser gezeigten unbetätigten Stellung der Anschlussvorrichtung 1 in einem geringen Abstand zu dem Klemmbereich 13a des Kontaktabschnitts 13 oder liegt an diesem an.The clamping edge 11d is in this shown unactuated position of the connection device 1 at a small distance to the clamping region 13a of the contact portion 13 or is applied to this.

Figur 2 zeigt das erste Ausführungsbeispiel nach Figur 1 vor Einführung eines Leiters. Ein Werkzeug 17, hier ein Schraubendreher, ist kurz davor, in den Betätigungsabschnitt 8a des Stößel 8 eingesetzt zu werden, um diesen in Einführungsrichtung 6 nach unten in den oberen Abschnitt 2b des Körpers 2 einzuschieben. FIG. 2 shows the first embodiment FIG. 1 before introducing a leader. A tool 17, here a screwdriver, is about to be inserted into the operating portion 8a of the plunger 8, to push it in the insertion direction 6 down into the upper portion 2b of the body 2.

Der Betätigungsabschnitt 8a kann einen entsprechenden Schlitz oder Ähnliches für ein korrespondierendes Werkzeug aufweisen.The operating portion 8a may have a corresponding slot or the like for a corresponding tool.

Figur 3 zeigt dann das erste Ausführungsbeispiel nach Figur 2 bei Einführung eines Leiters 16. Der Leiter 16 weist ein elektrisches Leiterelement 16a auf, welches von einer Isolierung 16b des Leiters 16 über eine bestimmte Länge befreit ist. Das Leiterelement 16a kann ein starrer Draht sein oder eine Litze. Das Werkzeug 17 ist in Einführungsrichtung 6 in den Betätigungsabschnitt 8a des Stößels 8 eingesetzt und hat durch Betätigung den Stößel 8 in den Innenraum 3 des Körpers 2 geschoben. Dabei wirkt die Druckkante 8b des unteren Endes des Stößels 8 mit der Oberfläche des Bogenabschnitts 11b der Klemmfeder 11 der Federeinheit 10 derart zusammen, dass der Klemmabschnitt 11c nach unten gegen eine Federkraft des Bogenabschnitts 11b verbogen ist und gleichzeitig auf der Oberfläche des Druckbogenabschnitts 12c der Druckfeder 12 aufliegt und diesen gegen die Federkraft der Druckbogenabschnitts 12c und des Bogenabschnitts 12b der Druckfeder 12 zusammenpresst. Dabei werden die Abstände der Klemmkante 11d der Klemmfeder 11 und des Druckabschnitts 12d der Druckfeder 12 zu dem Kontaktabschnitt 13 so vergrößert, dass ein Einführen des Leiters 16 mit dem abisolierten Leiterelement 16a durch die Einführungsöffnung 4 und die Durchführung 5 in den Innenraum 3 ermöglicht ist. FIG. 3 then shows the first embodiment FIG. 2 when introducing a conductor 16. The conductor 16 has an electrical conductor element 16a, which is freed from an insulation 16b of the conductor 16 over a certain length. The conductor element 16a may be a rigid wire or a stranded wire. The tool 17 is inserted in the insertion direction 6 in the operating portion 8a of the plunger 8 and has pushed by actuation of the plunger 8 in the interior 3 of the body 2. At this time, the pressure edge 8b of the lower end of the plunger 8 cooperates with the surface of the arc portion 11b of the clamp spring 11 of the spring unit 10 so that the clamp portion 11c is bent downward against a spring force of the arc portion 11b and simultaneously on the surface of the press sheet portion 12c of the compression spring 12 rests and this against the spring force of the sheet section 12c and the sheet portion 12b of the compression spring 12 is compressed. The distances of the clamping edge 11d of the clamping spring 11 and the pressure section 12d of the compression spring 12 are enlarged to the contact portion 13 so that insertion of the conductor 16 with the stripped conductor element 16a through the insertion opening 4 and the passage 5 in the interior 3 is made possible.

Eine Endposition des so in die Anschlussvorrichtung 1 eingeführten Leiters 16 ist in Figur 4 in einer Seitenansicht und in Figur 5 in einer Schnittansicht dargestellt.An end position of the conductor 16 thus inserted into the terminal device 1 is shown in FIG FIG. 4 in a side view and in FIG. 5 shown in a sectional view.

Der Leiter 16 ist mit seinem abisolierten Leiterelement 16a in den Innenraum 3 eingeführt, liegt mit einer Längsseite an dem Kontaktabschnitt 13 an und stößt mit seinem Ende gegen den Boden 15a. Das Werkzeug 17 wird entfernt, wobei der nach unten gedrückte Bogenabschnitt 11b der Klemmfeder 11 zurückfedert und den Stößel 8 wieder nach oben schiebt. Gleichzeitig wird im Klemmbereich 13a das Leiterelement 16a über die Klemmkante 11d der Klemmfeder 11 durch deren Federkraft bzw. die Federkraft des Bogenabschnitts 11b gegen den Kontaktabschnitt 13 gepresst. Der Klemmabschnitt 11c der Klemmfeder 11 steht in einem Winkel zur Einführungsrichtung 6, in der die Längsachse des Leiterelementes 16a verläuft. Dieser Winkel hängt von der Dicke, z.B. vom Durchmesser, des Leiterelementes 16a ab und liegt hier im Bereich von ungefähr 40...45°. Wird nun in dieser angeschlossenen Stellung des Leiterelementes 16a in der Anschlussvorrichtung 1 versucht, das Leiterelement 16a gegen die Einführungsrichtung 6 aus der Anschlussvorrichtung 1 herauszuziehen, wirkt eine Funktion der Selbsthemmung der Klemmfeder 11 einem Herausziehen entgegen und verhindert dies, indem die Klemmkante 11d mit der Federkraft der Klemmfeder 11 auf das Leiterelement 16a einwirkt. Gleichzeitig kann auch der Bogenabschnitt 11 mit seinem konvexen Außenbereich an der Druckkante 8b des Stößels 8 anliegen und festgehalten werden, wobei der Stößel 8 an einer Innenfläche des oberen Abschnitts 2b des Körpers 2 mit einem Stößelvorsprung 8d in Anschlag gerät und an einer weiteren Bewegung nach oben gegen die Einführungsrichtung 6 gehindert ist.The conductor 16 is inserted with its stripped conductor element 16a in the interior 3, abuts with a longitudinal side of the contact portion 13 and abuts with its end against the bottom 15a. The tool 17 is removed, the downwardly pressed sheet portion 11b of the clamping spring 11 springs back and pushes the plunger 8 back up. At the same time, in the clamping region 13a, the conductor element 16a is pressed against the contact section 13 via the clamping edge 11d of the clamping spring 11 by its spring force or the spring force of the arc section 11b. The clamping portion 11c of the clamping spring 11 is at an angle to the insertion direction 6, in which the longitudinal axis of the conductor element 16a extends. This angle depends on the thickness, eg of the diameter, of the conductor element 16a and is in the range of approximately 40 ... 45 °. If, in this connected position of the conductor element 16a in the connection device 1, attempts are then made to pull the conductor element 16a out of the connection device 1 against the insertion direction 6, a function of the self-locking of the clamping spring 11 counteracts withdrawal and prevents this by the clamping edge 11d with the spring force of the clamping spring 11 acts on the conductor element 16a. At the same time, the curved portion 11 with its convex outer region abut against the pressure edge 8b of the plunger 8 and be held, wherein the plunger 8 on an inner surface of the upper portion 2b of the body 2 with a plunger projection 8d into abutment and on a further upward movement is prevented against the insertion direction 6.

Weiterhin wird eine Kontaktkraft zwischen dem eingeführten und angeschlossenen Leiterelement 16a durch den Druck des konvexen Druckabschnitts 12d des Druckbogenabschnitts 12c der Druckfeder 12 verstärkt. Der Druckabschnitt 12d wird durch die Federkraft des Druckbogenabschnitts 12c in im Wesentlichen rechtwinkliger Richtung zur Einführungsrichtung 6 gegen das Leiterelement 16a gepresst und drückt dieses zusätzlich zur Klemmfeder 11 gegen den Druckbereich 13b des Kontaktabschnitts 13, wobei der Druckbereich 13b unterhalb des Klemmbereiches 13a liegt. Je nach Ausbildung des Druckabschnitts 12d drückt dieser linienförmig oder flächenförmig gegen das Leiterelement 16a.Furthermore, a contact force between the inserted and connected conductor element 16a is enhanced by the pressure of the convex pressure portion 12d of the press sheet portion 12c of the compression spring 12. The pressing portion 12d is pressed against the conductor member 16a in a substantially perpendicular direction to the insertion direction 6 by the spring force of the press sheet portion 12c, and presses this in addition to the clamp spring 11 against the press portion 13b of the contact portion 13, with the press portion 13b below the clamp portion 13a. Depending on the design of the pressure section 12d, the latter presses in a line-shaped or planar manner against the conductor element 16a.

In Figur 5 ist die Aufnahme 7a der Betätigungseinrichtung 7 gezeigt, welche im oberen Bereich im Körper 2 breiter als in dem darunterliegenden Bereich zum Innenraum 3 hin mit einem Anschlag 7b ausgebildet ist. Der Anschlag 7b bildet einen Anschlag für eine Schulter 8c des in der Aufnahme 7a in Einführungsrichtung 6 verschiebbar angeordneten Stößels 8, um eine Bewegung in Einführungsrichtung 6 zu begrenzen. Weiterhin weist der Stößel nahe seines unteren Endes mit der Druckkante 8d den Stößelvorsprung 8d auf, welcher eine Bewegung des Stößels 8 entgegen der Einführungsrichtung 6 begrenzt, indem er mit einem Abschnitt der Innenfläche des oberen Bereichs 2d in Anschlag kommt, was hier gezeigt ist. Dieser Abschnitt ist hier ein Rand der in den Innenraum 3 mündenden Aufnahme 7a.In FIG. 5 the receptacle 7a of the actuating device 7 is shown, which is formed in the upper area in the body 2 wider than in the underlying area to the interior 3 with a stop 7b. The stopper 7b forms a stop for a shoulder 8c of the plunger 8 displaceably arranged in the receptacle 7a in the insertion direction 6, in order to limit a movement in the insertion direction 6. Further, near its lower end with the pressure edge 8d, the plunger has the plunger projection 8d which limits movement of the plunger 8 against the insertion direction 6 by coming into abutment with a portion of the inner surface of the upper portion 2d, which is shown here. This section is here an edge of opening 7a opening into the interior 3.

Weiterhin ist aus dieser Figur 5 zu erkennen, dass die Halteabschnitte 11a und 12a der Federeinheit 10 eine Ausnehmung 19 aufweisen, in welche eine Nase 14a der Haltewand 14 eingreift. Auf diese Weise ist die Federeinheit 10 festgelegt. Ausnehmung 19 und Nase 14a können einen Formschluss bilden. Es ist auch möglich, dass die Federeinheit 10 mit der Haltewand 14 an einer oder mehreren Punkten, z.B. durch Nieten, fest verbunden ist.Furthermore, from this FIG. 5 to recognize that the holding portions 11a and 12a of the spring unit 10 have a recess 19, in which a nose 14a of the retaining wall 14 engages. In this way, the spring unit 10 is fixed. Recess 19 and nose 14a can form a positive connection. It is also possible that the spring unit 10 is fixedly connected to the retaining wall 14 at one or more points, for example by riveting.

Figur 6 stellt ein zweites Ausführungsbeispiel der erfindungsgemäßen Anschlussvorrichtung 1 in einer Schnittansicht mit einem angeschlossenen Leiter 16 dar. FIG. 6 illustrates a second embodiment of the connecting device 1 according to the invention in a sectional view with a connected conductor 16.

Im Unterschied zu dem ersten Ausführungsbeispiel, das oben ausführlich erläutert ist, ist hier die Federeinheit 10 aus zwei Einzelfedern, nämlich der Klemmfeder 11 und der Druckfeder 12 aufgebaut. Die Klemmfeder 11 ist mit ihrem Halteabschnitt 11a über dem Halteabschnitt 12a der Druckfeder 12 angeordnet, wobei zwischen den Halteabschnitten 11a und 12a ein Trennbereich 20 liegt. Die Halteabschnitte 11a und 12a sind jeweils an der Haltewand 14 wie oben beschrieben angebracht.In contrast to the first embodiment, which is explained in detail above, here the spring unit 10 of two individual springs, namely the clamping spring 11 and the compression spring 12 is constructed. The clamping spring 11 is arranged with its holding portion 11a on the holding portion 12a of the compression spring 12, wherein between the holding portions 11a and 12a, a separation region 20 is located. The holding portions 11a and 12a are respectively attached to the holding wall 14 as described above.

Der Bogenabschnitt 11b der Klemmfeder 11 ist in diesem zweiten Ausführungsbeispiel mit seiner konvexen, oben liegenden Außenseite an einem entsprechend geformten Anlageabschnitt 3a der Innenfläche des oberen Abschnitts 2b im Innenraum 3 anliegend angeordnet.The arc portion 11b of the clamping spring 11 is arranged in this second embodiment with its convex, overhead outer side of a correspondingly shaped contact portion 3a of the inner surface of the upper portion 2b in the interior 3 fitting.

Ein drittes Ausführungsbeispiel zeigt Figur 7 in einer schematischen perspektivischen Seitenansicht der erfindungsgemäßen Anschlussvorrichtung 1.A third embodiment shows FIG. 7 in a schematic perspective side view of the connecting device 1 according to the invention.

Hier besteht die Federeinheit 10 aus der V-förmigen Klemmfeder 11 und einer Verstärkungsfeder 18, welche ebenfalls V-förmig ausgebildet ist, und unterhalb der Klemmfeder 11 direkt an dieser anliegend angeordnet ist. Der Halteabschnitt 11a der Klemmfeder 11 verläuft längs der gesamten Länge der Haltewand 14 in Einführungsrichtung 6, wobei ein Halteabschnitt 18a der Verstärkungsfeder 18 etwa zwei Drittel der Länge der Haltewand 14 aufweist und auf dem Halteabschnitt 11a der Klemmfeder 11 liegend angeordnet ist. Der Halteabschnitt 18a der Verstärkungsfeder 18 liegt dabei weiter im Innenraum 3 als der Halteabschnitt 11a der Klemmfeder 11. Ein Bogenabschnitt 18b der Verstärkungsfeder 18 schmiegt sich vom Innenraum 3 her unten an den Bogenabschnitt 11b der Klemmfeder 11 an und verläuft weiter an der Unterseite der Klemmfeder 11 liegend mit einem Druckabschnitt 18c, der etwa im letzten Viertel des Klemmabschnitts 11c der Klemmfeder 11 endet. Die Verstärkungsfeder 18 wirkt besonders verstärkend bei größeren Drahtdurchmessern eines Leiterelementes 16a, wobei dazu die Länge des Druckabschnitts 18c der Verstärkungsfeder 18 an unterschiedliche Durchmesser von Leiterelementen 16a angepasst werden kann.Here, the spring unit 10 consists of the V-shaped clamping spring 11 and a reinforcing spring 18, which is also V-shaped, and below the clamping spring 11 is arranged directly adjacent to this. The holding portion 11a of the clamping spring 11 extends along the entire length of the retaining wall 14 in the insertion direction 6, wherein a holding portion 18a of the reinforcing spring 18 has approximately two thirds of the length of the retaining wall 14 and is disposed lying on the holding portion 11a of the clamping spring 11. The holding portion 18a of the reinforcing spring 18 is further in the interior 3 as the holding portion 11a of the clamping spring 11. An arc portion 18b of the reinforcing spring 18 nestles from the interior 3 down to the arc portion 11b of the clamping spring 11 and continues on the underside of the clamping spring eleventh lying with a pressure section 18 c, which ends approximately in the last quarter of the clamping portion 11 c of the clamping spring 11. The reinforcing spring 18 has a particularly reinforcing effect with larger wire diameters of a conductor element 16a, for which purpose the length of the pressure section 18c of the reinforcing spring 18 can be adapted to different diameters of conductor elements 16a.

Figur 8 zeigt das dritte Ausführungsbeispiel ähnlich Figur 3 bei Einführung des Leiters 16 in einer schematischen perspektivischen Ansicht. FIG. 8 shows the third embodiment similar FIG. 3 at the introduction of the conductor 16 in a schematic perspective view.

Der Bogenabschnitt 11b der Klemmfeder 11 liegt wie im zweiten Ausführungsbeispiel an dem Anlageabschnitt 3a des oberen Abschnitts 2b des Körpers 2 an. Die Betätigungseinrichtung 7 wird ebenfalls wie bereits oben beschrieben betätigt und wirkt so auf die Federeinheit 10 mittels des Stößels 8 ein, dass das Leiterelement 16a zwischen der Klemmkante 11d der Klemmfeder 11 und dem Klemmabschnitt 13a des Kontaktabschnitts 13 durch die Einführungsöffnung 4 und die Durchführung 5 in den Innenraum 3 eingeführt werden kann.The arc portion 11b of the clamping spring 11 abuts against the abutment portion 3a of the upper portion 2b of the body 2 as in the second embodiment. The actuating device 7 is also actuated as already described above and acts on the spring unit 10 by means of the plunger 8, that the conductor element 16 a between the clamping edge 11 d of the clamping spring 11 and the clamping portion 13 a of the contact portion 13 can be inserted through the insertion opening 4 and the passage 5 in the interior 3.

Nach Loslassen der Betätigungseinrichtung 7 ist das Leiterelement 16a in der Anschlussvorrichtung 1 angeschlossen, wie Figur 9 und 10 ähnlich wie Figur 4 und 5 in einer Seitenansicht und in einer Schnittansicht darstellen. Bis auf die Druckfeder 12 gilt die Beschreibung für Figur 4 und 5 auch für Figur 9 und 10 und soll hier nicht wiederholt werden.After releasing the actuator 7, the conductor element 16a is connected in the connecting device 1, such as FIGS. 9 and 10 similar to FIG. 4 and 5 in a side view and in a sectional view. Except for the compression spring 12, the description applies to FIG. 4 and 5 also for FIGS. 9 and 10 and should not be repeated here.

Auch in diesem dritten Ausführungsbeispiel sind die Halteabschnitte 11a und 18a der Federeinheit 10 jeweils mit einer Ausnehmung 15 versehen, die mit einer Nase 14a der Haltewand 14 zusammenwirkt.Also in this third embodiment, the holding portions 11a and 18a of the spring unit 10 are each provided with a recess 15 which cooperates with a nose 14a of the retaining wall 14.

Die Erfindung ist nicht auf die oben erläuterten Ausführungsbeispiele beschränkt. Im Rahmen der angefügten Ansprüche ist die Erfindung modifizierbar.The invention is not limited to the embodiments explained above. Within the scope of the appended claims, the invention is subject to modification.

Je nach Starrheit des Leiterelementes 16a, z.B. als Einzeldraht, kann dieses auch ohne Betätigung der Betätigungseinrichtung 7 in die Anschlussvorrichtung 1 eingeführt werden, wobei das Leiterelement 16a beim Einführen in den Innenraum 3 die Klemmfeder 11 und die Druckfeder 12 zusammendrückt und weiter vorspannt.Depending on the rigidity of the conductor element 16a, e.g. as a single wire, this can also be introduced without actuation of the actuator 7 in the connection device 1, wherein the conductor element 16 a when inserted into the interior 3, the clamping spring 11 and the compression spring 12 compresses and further biases.

Es ist denkbar, dass die Federeinheit 10 aus einer Klemmfeder 11, einer Druckfeder 12 und einer Verstärkungsfeder 18 bestehen kann.It is conceivable that the spring unit 10 may consist of a clamping spring 11, a compression spring 12 and a reinforcing spring 18.

Auch eine der Druckfeder 12 angepasste Verstärkungsfeder (nicht gezeigt) ist leicht vorstellbar.Also, a compression spring 12 adapted reinforcement spring (not shown) is easy to imagine.

Die Anschlussvorrichtungen 1 können als Anreihklemmen ausgebildet sein.The connection devices 1 can be designed as a series terminal.

Bezugszeichenreference numeral

11
Anschlussvorrichtungconnection device
22
Körperbody
2a, 2b2a, 2b
Seitepage
2c, 2d2c, 2d
Stirnseitefront
2e2e
Oberseitetop
2f2f
Unterseitebottom
2g2g
Oberer AbschnittUpper section
33
Innenrauminner space
3a3a
Anlageabschnittcontact section
44
Einführungsöffnunginsertion opening
55
Durchführungexecution
66
Einführungsrichtunginsertion direction
77
Betätigungseinrichtungactuator
7a7a
Aufnahmeadmission
7b7b
Anschlagattack
88th
Stößeltappet
8a8a
Betätigungsabschnittactuating section
8b8b
Druckkanteprinting edge
8c8c
Schultershoulder
8d8d
Stößelvorsprungfollower lug
99
Öffnungopening
1010
Federeinheitspring unit
1111
Klemmfederclamping spring
11a11a
Halteabschnittholding section
11b11b
Bogenabschnittarc section
11c11c
Klemmabschnittclamping section
11d11d
Klemmkanteclamping edge
1212
Druckfedercompression spring
12a12a
Halteabschnittholding section
12b12b
Bodenabschnittbottom section
12c12c
DruckbogenabschnittSheet section
12d12d
Druckabschnittprint section
1313
KontaktabschnittContact section
13a13a
Klemmbereichclamping range
13b13b
Druckbereichpressure range
1414
Haltewandretaining wall
14a14a
Nasenose
1515
Seitenplatteside plate
15a15a
Bodenground
1616
Leiterladder
16a16a
Leiterelementconductor element
16b16b
Isolierunginsulation
1717
WerkzeugTool
1818
Verstärkungsfederreinforcing spring
18a18a
Halteabschnittholding section
18b18b
Bogenabschnittarc section
18c18c
Druckabschnittprint section
1919
Ausnehmungrecess
2020
Trennbereichseparating region

Claims (6)

  1. A connection device (1) for electrical conductors (16), having
    - a body (2) having an interior (3) and an insertion opening (4) for inserting the electrical conductor (16) in an insertion direction (6) into the interior (3);
    - a spring unit (10) arranged in the interior (3) for clamping and contacting the electrical conductor (16);
    - an actuating device (7) for disengaging the spring unit (10) from a clamping position;
    - wherein the actuating device (7) comprises a plunger (8) having a pressure edge (8b), which is arranged so it is displaceable in the body (2);
    - the spring unit (10) has at least two spring sections, at least one of which is formed as a clamping spring (11);
    - wherein one of the at least two spring sections of the spring unit (10) is a clamping spring (11) having a clamping edge (11d) for clamping the conductor (16) and another of the at least two spring sections of the spring unit (10) is a compression spring (12) having a pressure section (12d) for acting on the conductor (16);
    - wherein the plunger (8) of the actuating device (7) interacts with the spring section of the spring unit (10) formed as a clamping spring (11);
    characterized in that
    - the spring unit (10) has a sigma shape, and therefore the spring unit (10) is embodied in one piece, wherein the two spring sections of clamping spring (11) and compression spring (12) are connected to one another or merge into one another; and
    - wherein the pressure edge (8b) of a lower end of the plunger (8) interacts with a surface of a curved section (11b) of the clamping spring (11) of the spring unit (10) such that a clamping section (11c) is bent downward against a spring force of the curved section (11b) and simultaneously bears on the surface of a pressure curved section (12c) of the compression spring (12) and compresses it against the spring force of the pressure curved section (12c) and the curved section (12b) of the compression spring (12).
  2. The connection device (1) according to Claim 1, characterized in that a side plate (15) is arranged in the interior (3) and forms a spring receptacle for the spring unit (10) with edges (13, 14, 15a).
  3. The connection device (1) according to Claim 2, characterized in that one of the edges (13, 14, 15a) of the side plate (15) forms a contact section (13), against which the electrical conductor (16) can be contacted in the clamping position.
  4. The connection device (1) according to Claim 2 or 3, characterized in that the at least two spring sections of the spring unit (10) are attached jointly or separately on a retaining wall (14), which is one of the edges (13, 14, 15a) of the side plate (15).
  5. The connection device (1) according to any one of the preceding claims, characterized in that the actuating device (7) and the insertion opening (4) for the electrical conductor (16) are arranged on the same side of the connection device (1), wherein the actuating device (7) is actuable in the insertion direction (6).
  6. A modular terminal having at least one connection device (1) according to any one of the preceding claims.
EP11757818.7A 2010-09-08 2011-09-07 Connecting apparatus Not-in-force EP2614556B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202010008485U DE202010008485U1 (en) 2010-09-08 2010-09-08 connection device
PCT/EP2011/065500 WO2012032097A1 (en) 2010-09-08 2011-09-07 Connecting apparatus

Publications (2)

Publication Number Publication Date
EP2614556A1 EP2614556A1 (en) 2013-07-17
EP2614556B1 true EP2614556B1 (en) 2019-01-09

Family

ID=44653295

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11757818.7A Not-in-force EP2614556B1 (en) 2010-09-08 2011-09-07 Connecting apparatus

Country Status (3)

Country Link
EP (1) EP2614556B1 (en)
DE (1) DE202010008485U1 (en)
WO (1) WO2012032097A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013104394B4 (en) 2013-04-30 2021-06-10 Wago Verwaltungsgesellschaft Mbh Conductor connection terminal
DE102014002054A1 (en) * 2014-02-18 2015-09-03 Wieland Electric Gmbh Conductor connection for a connector
DE202014101915U1 (en) * 2014-04-23 2015-07-24 Wago Verwaltungsgesellschaft Mbh Conductor terminal
DE102016111536A1 (en) * 2016-06-23 2017-12-28 Wago Verwaltungsgesellschaft Mbh Contact insert of a spring-loaded connection terminal and thus formed spring-force connection terminal
GB2575317B (en) * 2018-07-06 2022-06-08 Johnson Electric Int Ag Actuator
DE202018106242U1 (en) 2018-11-01 2020-02-14 Wago Verwaltungsgesellschaft Mbh Conductor terminal

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Publication number Priority date Publication date Assignee Title
FR1189105A (en) * 1955-11-08 1959-09-29 Thermo Electro Sa Improvements to mechanical or electrical connections between parts in the form of rods or cables
FR2566967B1 (en) * 1984-06-28 1989-04-07 Pouyet Henri TERMINAL FOR ELECTRICAL CONDUCTOR CONNECTION BY PRESSING SPRING
DE3447135A1 (en) * 1984-11-22 1986-05-22 Zwicker & Hensel Elektronische Schalttechnik GmbH, 5962 Drolshagen Screwless connecting and joining terminal for electrical leads
DE8709226U1 (en) * 1987-07-03 1987-08-20 Electro-Terminal Gmbh, Innsbruck Electrical connection terminal
JP3605923B2 (en) * 1995-03-15 2004-12-22 松下電工株式会社 Wire connection terminal device, outlet provided with wire connection terminal device, switch provided with wire connection terminal device, connector provided with wire connection terminal device, terminal block provided with wire connection terminal device, and joint provided with wire connection terminal device box
DE19810310C5 (en) * 1998-03-11 2004-11-25 Phoenix Contact Gmbh & Co. Kg Terminal for electrical conductors
IT1316356B1 (en) * 1999-02-16 2003-04-10 Cambre I C F S A CLAMP WITH QUICK CLOSING FIXING ELEMENT
DE202005010991U1 (en) * 2005-07-11 2006-11-23 Bals Elektrotechnik Gmbh & Co. Kg Screwless terminal frame terminal
DE102005050399B3 (en) * 2005-10-19 2007-07-26 Phoenix Contact Gmbh & Co. Kg Connecting terminal e.g. print terminal, for use in printed circuit board, has spring force unit with leg spring punched out and molded from material strip for clamping electrical conductor and fastened in openings
DE102009004513A1 (en) * 2009-01-09 2010-07-22 Phoenix Contact Gmbh & Co. Kg Clamping spring for a spring-loaded terminal

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Also Published As

Publication number Publication date
WO2012032097A1 (en) 2012-03-15
DE202010008485U1 (en) 2011-12-13
EP2614556A1 (en) 2013-07-17

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