EP3956947B1 - Electrical connection terminal - Google Patents

Electrical connection terminal Download PDF

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Publication number
EP3956947B1
EP3956947B1 EP20715348.7A EP20715348A EP3956947B1 EP 3956947 B1 EP3956947 B1 EP 3956947B1 EP 20715348 A EP20715348 A EP 20715348A EP 3956947 B1 EP3956947 B1 EP 3956947B1
Authority
EP
European Patent Office
Prior art keywords
clamping spring
conductor
connection terminal
actuating
clamping
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP20715348.7A
Other languages
German (de)
French (fr)
Other versions
EP3956947A1 (en
Inventor
Kevin Berghahn
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Phoenix Contact GmbH and Co KG
Original Assignee
Phoenix Contact GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Phoenix Contact GmbH and Co KG filed Critical Phoenix Contact GmbH and Co KG
Publication of EP3956947A1 publication Critical patent/EP3956947A1/en
Application granted granted Critical
Publication of EP3956947B1 publication Critical patent/EP3956947B1/en
Active 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
    • H01R4/4821—Single-blade spring
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
    • H01R4/4811—Spring details
    • H01R4/4814—Self-latching arrangements
    • 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
    • H01R4/4828—Spring-activating arrangements mounted on or integrally formed with the spring housing
    • H01R4/4835—Mechanically bistable arrangements, e.g. locked by the housing when the spring is biased
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
    • H01R4/4846—Busbar details

Definitions

  • the invention relates to an electrical connection terminal for connecting a conductor, which has a busbar, a clamping spring, by means of which the conductor is clamped against the busbar in a clamped state, and an actuating element, by means of which the clamping spring can be transferred from the clamped state to a non-clamped state.
  • connection terminals usually have a leg spring with a holding leg and a clamping leg, whereby a conductor inserted into the connection terminal can be clamped against the busbar by means of the clamping leg.
  • the clamping spring must be actuated by means of the actuating element before the conductor is inserted in order to pivot the clamping spring or the clamping leg away from the busbar so that the conductor can be inserted into the space between the busbar and the clamping spring. Only with rigid and therefore stable conductors can the conductor apply sufficient force to the clamping spring or the clamping leg of the clamping spring to be able to pivot the clamping leg away from the busbar without the actuating element having to be actuated by a user.
  • the user With flexible conductors, the user must first pivot the clamping spring away from the busbar by actuating the actuating element so that the flexible conductor can be inserted and clamped.
  • the user having to operate the actuating element makes the assembly or connection of the conductor more difficult for the user, as handling is cumbersome and also increases the time required.
  • DE202013100740U1 discloses an electrical wire connection clamp wherein a housing supports a bent spring leaf having a leg adapted to clamp an electrical wire end, the housing further supporting a rotatable stop for the inserted wire, the stop also having a tooth adapted to hold the clamping leg of the spring in an open position whereby rotation of the stop under pressure from an inserted wire end releases the clamping leg of the spring to clamp the wire in connection position.
  • the invention is therefore based on the object of providing an electrical connection terminal with which the connection of flexible conductors can be simplified.
  • the electrical connection terminal according to the invention is characterized in that the clamping spring is designed as a leaf spring and that a receiving element is provided, to which the leaf spring is fastened, wherein the receiving element has a holding element on which the clamping spring is held in the non-clamped state and from which the clamping spring is released in the clamped state, wherein the holding element can be pivoted to release the clamping spring from the holding element, wherein the holding element has a pressure surface which can be actuated to carry out the pivoting movement by means of the conductor to be connected.
  • connection terminal Using the connection terminal according to the invention, a flexible conductor can now be connected and clamped against the busbar without actuating the actuating element in the connection terminal.
  • the clamping spring is not designed as a leg spring, but as a leaf spring, which is elongated.
  • the clamping spring therefore has a leaf-shaped or strip-shaped contour.
  • the clamping spring designed as a leaf spring has a fastening area, via which the clamping spring is attached to a receiving element.
  • the clamping spring At a second end section opposite the first end section, the clamping spring has a clamping area, which in the clamped state has direct contact with the conductor in order to clamp the conductor against the busbar.
  • the receiving element to which the clamping spring is attached with its first end section, has a holding element, to which the clamping spring is held with its second end section in the non-clamped state in such a way that the clamping spring is pivoted away from the busbar, in particular with its second end section forming the clamping area, so that the conductor, in particular a flexible conductor, can be inserted into the gap thus formed between the busbar and the clamping spring without the clamping spring having to be actuated beforehand with the actuating element.
  • the holding element has a pressure surface which is arranged in the insertion area of the conductor in the connection terminal, so that the conductor strikes the pressure surface when inserted into the connection terminal.
  • the holding element By applying a pressure force to the pressure surface using the conductor, the holding element can be set in a pivoting movement so that the holding element is pivoted away in the insertion direction of the conductor.
  • the clamping spring By pivoting the holding element, the clamping spring can be released from the holding element, so that the clamping spring can move with its clamping area in the direction of the inserted conductor, in particular pivot, and can thereby clamp the inserted conductor against the busbar.
  • This special mechanism can Connecting a flexible conductor can be done particularly easily just by inserting the conductor, without the user having to operate other elements, such as the actuating element, on the connection terminal. This makes handling the connection terminal easier and also saves time when connecting a conductor.
  • the clamping spring with its clamping area can be pivoted back towards the holding element using the actuating element and secured in position on the holding element, in particular locked into place.
  • the receiving element preferably has a receiving pocket in which the clamping spring can be inserted, wherein a spring-elastic web can be formed on the receiving pocket, on which the holding element can be arranged.
  • the receiving pocket is preferably designed in such a way that it encloses the clamping spring inserted in the receiving pocket on the circumference, so that the clamping spring can be held securely in position in the receiving pocket.
  • a spring-elastic web can be formed on this receiving pocket, at the end of which the holding element can be arranged. This spring-elastic web enables a spring movement of the holding element relative to the receiving pocket, which also enables the pivoting movement of the holding element to release the clamping spring from the holding element.
  • the holding element can thus execute a pivoting movement relative to the receiving pocket.
  • the receiving pocket, the spring-elastic web and the holding element are preferably formed integrally with one another.
  • the spring-elastic web can have a cross-sectional reduction along its length.
  • the cross-sectional reduction can be designed in the form of a constriction, so that the width of the web changes along its length.
  • the width reduction and thus the cross-sectional reduction preferably take place in the direction of the holding element, so that in the area where the web is connected to the receiving pocket, the web has a greater width than in the area where the web is connected to the holding element.
  • the holding element can have two opposing locking lugs, whereby the locking lugs can be bent towards each other.
  • the locking lugs can each have an undercut have, on which the clamping spring can be held with its clamping area in the non-clamped state, in particular locked.
  • the holding element can be U-shaped, wherein the locking lugs can be formed on the two opposite legs of the U-shape of the holding element.
  • a first locking lug can be formed on a first leg and a second locking lug can be formed on a second leg of the U-shaped holding element opposite the first leg.
  • the legs preferably run parallel to one another.
  • the locking lugs on the other hand, can be bent towards one another, so that they can point towards one another starting from the connection to the legs. The locking of the clamping spring on the locking lugs can be improved in this way.
  • the clamping spring can have a clamping area by means of which the conductor can be clamped against the busbar in the clamped state, wherein the clamping area can have two actuating surfaces formed on the side of the clamping area for actuating the clamping spring by means of the actuating element. Due to the actuating surfaces formed on the side, the clamping spring can have a greater width in its clamping area than the rest of the clamping spring.
  • the actuating surfaces can form a pressure surface for the actuating element so that the actuating element can actuate the clamping spring at the level of its clamping area. The strength of the pressure force to be applied to the clamping spring by means of the actuating element to transfer the clamping spring from the clamped state to the non-clamped state can thus be reduced.
  • the busbar can be attached to the receiving element.
  • the busbar can be inserted into the receiving pocket of the receiving element in the same way as the clamping spring.
  • the clamping spring can be arranged on a base section of the receiving pocket and the busbar can be arranged on a ceiling section of the receiving pocket opposite the base section, so that the clamping spring and the busbar are opposite each other.
  • the clamping spring and the busbar can be arranged to run essentially parallel to each other.
  • the busbar can be attached to the receiving element by means of a snap-in connection.
  • the actuating element is provided such that the actuating element has an actuating direction which is transverse to an insertion direction of the to be connected into the electrical connection terminal.
  • the actuation of the actuating element preferably takes place along its longitudinal axis, so that the actuating element is preferably arranged so as to be longitudinally displaceable in the connection terminal.
  • the actuating element is preferably arranged so as to be longitudinally displaceable in a direction transverse to the direction of insertion of the conductor.
  • the actuation direction of the actuating element is therefore preferably not parallel to the direction of insertion of the conductor.
  • the actuating element preferably has two opposing actuating fingers for actuating the clamping spring, whereby a free space can be formed between the two actuating fingers for passing through the conductor to be connected. To actuate the clamping spring, the actuating element can thus be guided laterally past the conductor with its two actuating fingers.
  • This design of the actuating element enables a particularly compact design of the connection terminal to be achieved.
  • the two actuating fingers preferably extend in the direction of the longitudinal axis of the actuating element and can thus form a type of extension of the actuating element.
  • connection terminal has an insulating housing within which the busbar, the clamping spring, the actuating element and the receiving element can be arranged.
  • the insulating housing can have a conductor insertion opening and a receiving opening for the actuating element, wherein the conductor insertion opening can be formed on a first side of the insulating housing and wherein the receiving opening can be formed on a second side of the insulating housing extending transversely to the first side.
  • Fig.1 shows an electrical connection terminal 100 for connecting an electrical conductor 200, which has a busbar 10 and clamping spring 11, wherein in order to connect the conductor 200, the latter is clamped against the busbar 10 by means of the clamping spring 11. Both the clamping spring 11 and the busbar 10 are arranged on a receiving element 12.
  • the clamping spring 11 is designed as a leaf spring, which is leaf-shaped or strip-shaped.
  • the clamping spring 11 is inserted into the receiving element 12 and fastened to the receiving element 12.
  • the clamping spring 11 has a fastening area on a first end section 13, by means of which the clamping spring 11 is fastened to the receiving element 12.
  • the clamping spring 11 forms its clamping area, with which, in the clamped state, the clamping spring 11 clamps the conductor 200 inserted into the connection terminal 100 against the busbar 10 and thus connects it in an electrically contacting manner.
  • the clamping spring 11 has two actuating surfaces 30, 31 formed on the side for actuating the clamping spring 11 by means of an actuating element 32.
  • the receiving element 12 has a receiving pocket 15 and a holding element 16, wherein the receiving pocket 15 is connected to the holding element 16 via a spring-elastic web 17.
  • the holding element 16 serves to hold the clamping spring 11 in a non-clamped state, i.e. when the clamping spring 11 is not clamping a conductor 200 against the busbar 10, in particular at its second end section 14 forming the clamping area, so that a free space or gap is formed between the busbar 10 and the clamping spring 11, as for example in Fig.1 can be seen, into which a conductor 200 can be inserted.
  • the holding element 16 is U-shaped. On a wall 20 formed between two legs 18, 19 running parallel to one another, the holding element 16 has a pressure surface 21 which is directed in the direction of a conductor 200 to be inserted. When a conductor 200 to be connected is inserted into the connection terminal 100, this conductor 200 can press against the pressure surface 21, whereby the entire holding element 16 can be pivoted away from the conductor 200 and thus also from the clamping spring 11 in the pivoting direction S, so that the clamping spring 11 is released from the holding element 16 and can thus be moved with its second end section 14 in the direction of the busbar 10 in order to clamp the inserted conductor 200 against the busbar 10.
  • a locking lug 22, 23 is formed on each of the two legs 18, 19 of the holding element 16, each of which has a rear grip onto which the clamping spring 11 can engage in the non-clamped state in order to be held on the holding element 16.
  • the locking lugs 22, 23 do not run parallel to one another, but are bent towards one another so that they are directed towards one another.
  • the holding element 16 is movable relative to the receiving pocket 15, in particular pivotable.
  • the holding element 16 itself is rigid.
  • the spring-elastic web 17 thus enables a pivoting movement of the holding element 16 in the pivoting direction S when a conductor 200 presses against the holding element 16 and the web 17 enables the holding element 16, when the conductor 200 is no longer clamped, to pivot back into its starting position against the pivoting direction S so that the clamping spring in the non-clamped state can be held or locked again on the holding element 16.
  • the spring-elastic web 17 has a cross-sectional reduction 24 along its length, so that the web 17 is waisted, as shown in particular in Fig.6 can be seen.
  • the cross-sectional reduction 24 is formed in the direction of the holding element 16, so that in the area of the connection of the web 17 to the holding element 16, the web 17 has a smaller cross-section and thus a smaller width than in the area of the connection of the web 17 to the receiving pocket 15.
  • the receiving pocket 15 is designed in such a way that it encloses the clamping spring 11 inserted into the receiving pocket 15 on the circumference.
  • the receiving pocket 15 also forms a window-like opening 25 through which the conductor 200 to be connected is passed during connection, as shown in Fig.4 can be seen.
  • the window-like opening 25 is closed at its periphery.
  • the receiving pocket 15 is rigid, as is the holding element 16.
  • the busbar 10 is also held on the receiving element 12 by fastening the busbar 10 to the receiving pocket 15.
  • the busbar 10, like the clamping spring 11, is inserted into the receiving pocket 15 of the receiving element 12.
  • the clamping spring 11 is arranged on a base section 26 of the receiving pocket 15 and the busbar 10 is arranged on a ceiling section 27 of the receiving pocket 15 opposite the base section 26, so that the clamping spring 11 and the busbar 10 are opposite each other.
  • the busbar 10 is fastened to the receiving element 12 by means of a locking connection. In the area of the receiving pocket 15, the receiving element 12 has two opposing recesses 28, 29 into which the busbar 10 is locked.
  • Fig.2 shows a side view of the Fig.1 shown connection terminal 100, wherein it can be seen here that the clamping spring 11 rests flat on the receiving element 12, in particular on the receiving pocket 15 of the receiving element 12, in the region of its first end section 13.
  • Fig.3 shows an insulating housing 33 of the connection terminal 100, in which the busbar 10, the clamping spring 11, the receiving element 12 and the actuating element 32 are arranged.
  • the insulating housing 33 has a conductor insertion opening 34 for inserting the conductor 200 into the connection terminal 100 and a receiving opening 35 in which the actuating element 32 is guided so as to be longitudinally displaceable, wherein the conductor insertion opening 34 is formed on a first side 36 of the insulating housing 33 and wherein the receiving opening 35 is formed on a second side 37 of the insulating housing 33 extending transversely to the first side 36.
  • the actuating element 32 thus has an actuation direction B which is formed transversely to an insertion direction E of the conductor 200 to be connected into the connection terminal 100.
  • the actuating element 32 is designed in the form of a pusher.
  • the actuating element 32 has two opposing actuating fingers 38, 39 at its end pointing towards the clamping spring 11, wherein a free space is formed between the actuating fingers 38, 39 for the passage of the conductor 200 to be connected, as for example in Fig.5 can be seen.
  • the actuating fingers 38, 39 can apply a compressive force to the actuating surfaces 30, 31 of the clamping spring 11 in order to move it away from the conductor 200 and to lock it again with its second end section 14 to the holding element 16.
  • Fig.4 and 5 show a conductor 200 inserted into the connection terminal 100, which presses against the pressure surface 21 of the holding element 16 and thereby pivots the holding element 16 or deflects it backwards in the pivoting direction S, so that the clamping spring 11 with its second end section 14 and thus with its clamping area is released from the locking lugs 22, 23 of the holding element 16 in order to clamp the conductor 200 against the busbar 10.
  • the clamping spring 11 can be actuated by means of the actuating element 32, as shown in Fig.6 can be seen, are moved back in the direction of the holding element 16 and locked onto the holding element 16.
  • Connection terminal 100 Busbar 10 Clamping spring 11 Recording element 12 First final section 13 Second final section 14 Recording pocket 15 Holding element 16 web 17 leg 18 leg 19 Wall 20 Printing area 21 locking lug 22 locking lug 23 Cross-section reduction 24 opening 25 Floor section 26 Ceiling section 27 Recess 28 Recess 29 Actuating surface 30 Actuating surface 31 Actuator 32 Insulated housing 33 Conductor entry opening 34 Receiving opening 35 First page 36 Second page 37 Actuating finger 38 Actuating finger 39 Director 200 Actuation direction B Introduction direction E Panning direction S

Landscapes

  • Clamps And Clips (AREA)
  • Multi-Conductor Connections (AREA)
  • Connections Arranged To Contact A Plurality Of Conductors (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)

Description

Die Erfindung betrifft eine elektrische Anschlussklemme zum Anschließen eines Leiters, welche eine Stromschiene, eine Klemmfeder, mittels welcher der Leiter in einem geklemmten Zustand gegen die Stromschiene geklemmt ist, und ein Betätigungselement, mittels welchem die Klemmfeder von dem geklemmten Zustand in einen nicht geklemmten Zustand überführbar ist, aufweist.The invention relates to an electrical connection terminal for connecting a conductor, which has a busbar, a clamping spring, by means of which the conductor is clamped against the busbar in a clamped state, and an actuating element, by means of which the clamping spring can be transferred from the clamped state to a non-clamped state.

Derartige Anschlussklemmen weisen üblicherweise eine einen Halteschenkel und einen Klemmschenkel aufweisende Schenkelfeder auf, wobei ein in die Anschlussklemme eingeführter Leiter mittels des Klemmschenkels gegen die Stromschiene klemmbar ist. Werden insbesondere flexible Leiter geklemmt, so muss die Klemmfeder bereits vor einem Einführen des Leiters mittels des Betätigungselements betätigt werden, um die Klemmfeder bzw. den Klemmschenkel von der Stromschiene wegzuverschwenken, damit der Leiter in den Zwischenraum zwischen der Stromschiene und der Klemmfeder eingeführt werden kann. Lediglich bei starren und damit stabilen Leitern kann der Leiter genügend Kraft auf die Klemmfeder bzw. den Klemmschenkel der Klemmfeder aufbringen, um den Klemmschenkel von der Stromschiene wegverschwenken zu können, ohne dass hierfür das Betätigungselement durch einen Benutzer betätigt werden muss. Bei flexiblen Leitern muss der Benutzer zunächst durch Betätigen des Betätigungselements die Klemmfeder von der Stromschiene wegverschwenken, damit der flexible Leiter eingeführt und geklemmt werden kann. Das Betätigen des Betätigungselementes von dem Benutzer erschwert die Montage bzw. das Anschließen des Leiters für den Benutzer, da die Handhabung umständlich ist und auch der Zeitaufwand steigt.Such connection terminals usually have a leg spring with a holding leg and a clamping leg, whereby a conductor inserted into the connection terminal can be clamped against the busbar by means of the clamping leg. If flexible conductors in particular are clamped, the clamping spring must be actuated by means of the actuating element before the conductor is inserted in order to pivot the clamping spring or the clamping leg away from the busbar so that the conductor can be inserted into the space between the busbar and the clamping spring. Only with rigid and therefore stable conductors can the conductor apply sufficient force to the clamping spring or the clamping leg of the clamping spring to be able to pivot the clamping leg away from the busbar without the actuating element having to be actuated by a user. With flexible conductors, the user must first pivot the clamping spring away from the busbar by actuating the actuating element so that the flexible conductor can be inserted and clamped. The user having to operate the actuating element makes the assembly or connection of the conductor more difficult for the user, as handling is cumbersome and also increases the time required.

DE202013100740U1 offenbart eine elektrische Drahtverbindungsklemme, bei der ein Gehäuse ein umgebogenes Federblatt hält, von dem ein Schenkel so angepasst ist, dass er ein elektrisches Drahtende festklemmt, wobei das Gehäuse ferner einen drehbaren Anschlag für den eingeführten Draht hält, wobei der Anschlag auch einen Zahn aufweist, der den Klemmschenkel der Feder in einer offenen Position halten kann, wodurch die Drehung des Anschlags unter dem Druck eines eingeführten Drahtendes den Klemmschenkel der Feder freigibt, um den Draht in Verbindungsposition zu klemmen. DE202013100740U1 discloses an electrical wire connection clamp wherein a housing supports a bent spring leaf having a leg adapted to clamp an electrical wire end, the housing further supporting a rotatable stop for the inserted wire, the stop also having a tooth adapted to hold the clamping leg of the spring in an open position whereby rotation of the stop under pressure from an inserted wire end releases the clamping leg of the spring to clamp the wire in connection position.

Der Erfindung liegt daher die Aufgabe zu Grunde, eine elektrische Anschlussklemme zur Verfügung zu stellen, bei welcher das Anschließen von flexiblen Leitern vereinfacht werden kann.The invention is therefore based on the object of providing an electrical connection terminal with which the connection of flexible conductors can be simplified.

Die Aufgabe wird erfindungsgemäß mit den Merkmalen des unabhängigen Anspruchs gelöst. Zweckmäßige Ausgestaltungen und vorteilhafte Weiterbildungen der Erfindung sind in den Unteransprüchen angegeben.The object is achieved according to the invention with the features of the independent claim. Expedient embodiments and advantageous further developments of the invention are specified in the subclaims.

Die elektrische Anschlussklemme gemäß der Erfindung zeichnet sich dadurch aus, dass die Klemmfeder als Blattfeder ausgebildet ist und dass ein Aufnahmeelement vorgesehen ist, an welchem die Blattfeder befestigt ist, wobei das Aufnahmeelement ein Halteelement aufweist, an welchem die Klemmfeder in dem nicht geklemmten Zustand gehalten ist und von welchem die Klemmfeder in dem geklemmten Zustand gelöst ist, wobei das Halteelement zum Lösen der Klemmfeder aus dem Halteelement verschwenkbar ist, wobei das Halteelement eine Druckfläche aufweist, welche zur Ausführung der Verschwenkbewegung mittels des anzuschließenden Leiters betätigbar ist.The electrical connection terminal according to the invention is characterized in that the clamping spring is designed as a leaf spring and that a receiving element is provided, to which the leaf spring is fastened, wherein the receiving element has a holding element on which the clamping spring is held in the non-clamped state and from which the clamping spring is released in the clamped state, wherein the holding element can be pivoted to release the clamping spring from the holding element, wherein the holding element has a pressure surface which can be actuated to carry out the pivoting movement by means of the conductor to be connected.

Mittels der erfindungsgemäßen Anschlussklemme kann nunmehr auch ein flexibler Leiter ohne die Betätigung des Betätigungselements in der Anschlussklemme angeschlossen und gegen die Stromschiene geklemmt werden. Die Klemmfeder ist nicht als Schenkelfeder, sondern als Blattfeder ausgebildet, welche länglich ausgebildet ist. Die Klemmfeder weist damit eine blattförmige bzw. streifenförmige Kontur auf. An einem ersten Endabschnitt weist die als Blattfeder ausgebildete Klemmfeder einen Befestigungsbereich auf, über welchen die Klemmfeder an einem Aufnahmeelement befestigt ist. An einem dem ersten Endabschnitt gegenüberliegenden zweiten Endabschnitt weist die Klemmfeder einen Klemmbereich auf, welcher im geklemmten Zustand einen direkten Kontakt mit dem Leiter hat, um den Leiter gegen die Stromschiene zu klemmen. Das Aufnahmeelement, an welchem die Klemmfeder mit ihrem ersten Endabschnitt befestigt ist, weist ein Halteelement auf, an welchem die Klemmfeder mit ihrem zweiten Endabschnitt im nicht geklemmten Zustand derart gehalten ist dass die Klemmfeder insbesondere mit ihrem den Klemmbereich ausbildenden zweiten Endabschnitt von der Stromschiene wegverschwenkt ist, so dass der Leiter, insbesondere ein flexibler Leiter in den dadurch ausgebildeten Zwischenraum zwischen der Stromschiene und der Klemmfeder eingeführt werden kann, ohne dass die Klemmfeder zuvor mit dem Betätigungselement betätigt werden muss. Das Halteelement weist eine Druckfläche auf, welche im Einführbereich des Leiters in die Anschlussklemme angeordnet ist, so dass der Leiter beim Einführen in die Anschlussklemme gegen die Druckfläche stößt. Durch die Aufbringung einer Druckkraft mittels des Leiters auf die Druckfläche kann das Halteelement in eine Verschwenkbewegung versetzt werden, so dass das Halteelement in Einführungsrichtung des Leiters wegverschwenkt wird. Durch die Verschwenkbewegung des Halteelements, kann die Klemmfeder von dem Halteelement gelöst werden, so dass sich die Klemmfeder mit ihrem Klemmbereich in Richtung des eingeführten Leiters bewegen kann, insbesondere verschwenken kann, und dadurch den eingeführten Leiter gegen die Stromschiene klemmen kann. Durch diesen speziellen Mechanismus kann ein Anschließen eines flexiblen Leiters besonders einfach alleine durch die Einführbewegung des Leiters erfolgen, ohne dass ein Benutzer weitere Elemente, wie beispielsweise das Betätigungselement, an der Anschlussklemme betätigen muss. Dies erleichtert die Handhabung der Anschlussklemme und spart auch Zeit beim Anschließen eines Leiters. Um den anzuschließenden Leiter wieder aus dem geklemmten Zustand zu lösen, kann mittels des Betätigungselements die Klemmfeder mit ihrem Klemmbereich zurück in Richtung des Halteelements verschwenkt werden und an dem Halteelement positionssicher festgelegt, insbesondere verrastet werden.Using the connection terminal according to the invention, a flexible conductor can now be connected and clamped against the busbar without actuating the actuating element in the connection terminal. The clamping spring is not designed as a leg spring, but as a leaf spring, which is elongated. The clamping spring therefore has a leaf-shaped or strip-shaped contour. At a first end section, the clamping spring designed as a leaf spring has a fastening area, via which the clamping spring is attached to a receiving element. At a second end section opposite the first end section, the clamping spring has a clamping area, which in the clamped state has direct contact with the conductor in order to clamp the conductor against the busbar. The receiving element, to which the clamping spring is attached with its first end section, has a holding element, to which the clamping spring is held with its second end section in the non-clamped state in such a way that the clamping spring is pivoted away from the busbar, in particular with its second end section forming the clamping area, so that the conductor, in particular a flexible conductor, can be inserted into the gap thus formed between the busbar and the clamping spring without the clamping spring having to be actuated beforehand with the actuating element. The holding element has a pressure surface which is arranged in the insertion area of the conductor in the connection terminal, so that the conductor strikes the pressure surface when inserted into the connection terminal. By applying a pressure force to the pressure surface using the conductor, the holding element can be set in a pivoting movement so that the holding element is pivoted away in the insertion direction of the conductor. By pivoting the holding element, the clamping spring can be released from the holding element, so that the clamping spring can move with its clamping area in the direction of the inserted conductor, in particular pivot, and can thereby clamp the inserted conductor against the busbar. This special mechanism can Connecting a flexible conductor can be done particularly easily just by inserting the conductor, without the user having to operate other elements, such as the actuating element, on the connection terminal. This makes handling the connection terminal easier and also saves time when connecting a conductor. In order to release the conductor to be connected from the clamped state, the clamping spring with its clamping area can be pivoted back towards the holding element using the actuating element and secured in position on the holding element, in particular locked into place.

Das Aufnahmeelement weist bevorzugt eine Aufnahmetasche auf, in welcher die Klemmfeder eingelegt sein kann, wobei an der Aufnahmetasche ein federelastisch ausgebildeter Steg angeformt sein kann, an welchem das Halteelement angeordnet sein kann. Die Aufnahmetasche ist vorzugsweise derart ausgebildet, dass diese die in die Aufnahmetasche eingelegte Klemmfeder umfangsseitig umschließt, so dass die Klemmfeder positionssicher in der Aufnahmetasche gehalten sein kann. An diese Aufnahmetasche kann ein federelastischer Steg angeformt sein, an dessen Ende das Halteelement angeordnet sein kann. Durch diesen federelastischen Steg ist eine Federbewegung des Halteelements relativ zu der Aufnahmetasche möglich, wodurch auch die Verschwenkbewegung des Halteelements zum Lösen der Klemmfeder von dem Halteelement ermöglicht werden kann. Das Halteelement kann damit relativ zu der Aufnahmetasche eine Verschwenkbewegung ausführen. Die Aufnahmetasche, der federelastische Steg und das Halteelement sind vorzugsweise einstückig miteinander ausgebildet.The receiving element preferably has a receiving pocket in which the clamping spring can be inserted, wherein a spring-elastic web can be formed on the receiving pocket, on which the holding element can be arranged. The receiving pocket is preferably designed in such a way that it encloses the clamping spring inserted in the receiving pocket on the circumference, so that the clamping spring can be held securely in position in the receiving pocket. A spring-elastic web can be formed on this receiving pocket, at the end of which the holding element can be arranged. This spring-elastic web enables a spring movement of the holding element relative to the receiving pocket, which also enables the pivoting movement of the holding element to release the clamping spring from the holding element. The holding element can thus execute a pivoting movement relative to the receiving pocket. The receiving pocket, the spring-elastic web and the holding element are preferably formed integrally with one another.

Um die Federwirkung des federelastischen Stegs weiter verbessern zu können, kann der federelastisch ausgebildete Steg eine Querschnittsreduzierung entlang seiner Länge aufweisen. Die Querschnittsreduzierung kann in Form einer Einschnürung ausgebildet sein, so dass sich die Breite des Steges entlang seiner Länge ändert. Die Breitenreduzierung und damit die Querschnittsreduzierung erfolgen vorzugsweise in Richtung des Halteelements, so dass im Bereich der Anbindung des Steges an die Aufnahmetasche der Steg eine größere Breite aufweist als im Bereich der Anbindung des Steges an das Halteelement.In order to further improve the spring effect of the spring-elastic web, the spring-elastic web can have a cross-sectional reduction along its length. The cross-sectional reduction can be designed in the form of a constriction, so that the width of the web changes along its length. The width reduction and thus the cross-sectional reduction preferably take place in the direction of the holding element, so that in the area where the web is connected to the receiving pocket, the web has a greater width than in the area where the web is connected to the holding element.

Zum Halten der Klemmfeder in dem nicht geklemmten Zustand kann das Halteelement zwei sich gegenüberliegende Rastnasen aufweisen, wobei die Rastnasen zueinander gebogen ausgebildet sein können. Die Rastnasen können jeweils einen Hinterschnitt aufweisen, an welchen die Klemmfeder mit ihrem Klemmbereich im nicht geklemmten Zustand gehalten, insbesondere verrastet werden kann. Das Halteelement kann U-förmig ausgebildet sein, wobei an den beiden sich gegenüberliegenden Schenkeln der U-Form des Halteelements die Rastnasen ausgebildet sein können. Eine erste Rastnase kann dabei an einem ersten Schenkel und eine zweite Rastnase kann an einem dem ersten Schenkel gegenüberliegenden zweiten Schenkel des U-förmigen Halteelements ausgebildet sein. Die Schenkel verlaufen vorzugsweise parallel zueinander. Die Rastnasen hingegen können zueinander gebogen ausgebildet sein, so dass sie ausgehend von der Anbindung an die Schenkel aufeinander zu gerichtet sein können. Das Verrasten der Klemmfeder an den Rastnasen kann dadurch verbessert werden.To hold the clamping spring in the non-clamped state, the holding element can have two opposing locking lugs, whereby the locking lugs can be bent towards each other. The locking lugs can each have an undercut have, on which the clamping spring can be held with its clamping area in the non-clamped state, in particular locked. The holding element can be U-shaped, wherein the locking lugs can be formed on the two opposite legs of the U-shape of the holding element. A first locking lug can be formed on a first leg and a second locking lug can be formed on a second leg of the U-shaped holding element opposite the first leg. The legs preferably run parallel to one another. The locking lugs, on the other hand, can be bent towards one another, so that they can point towards one another starting from the connection to the legs. The locking of the clamping spring on the locking lugs can be improved in this way.

Die Klemmfeder kann einen Klemmbereich aufweisen, mittels welchem im geklemmten Zustand der Leiter gegen die Stromschiene geklemmt sein kann, wobei der Klemmbereich zwei seitlich an dem Klemmbereich angeformte Betätigungsflächen zum Betätigen der Klemmfeder mittels des Betätigungselements aufweisen kann. Durch die seitlich angeformten Betätigungsflächen kann die Klemmfeder in ihrem Klemmbereich gegenüber dem Rest der Klemmfeder eine größere Breite aufweisen. Die Betätigungsflächen können eine Druckfläche für das Betätigungselement ausbilden, so dass das Betätigungselement die Klemmfeder auf der Höhe ihres Klemmbereiches betätigen kann. Die Stärke der mittels des Betätigungselements auf die Klemmfeder aufzubringenden Druckkraft zum Überführen der Klemmfeder von dem geklemmten Zustand in den nicht geklemmten Zustand kann dadurch reduziert werden.The clamping spring can have a clamping area by means of which the conductor can be clamped against the busbar in the clamped state, wherein the clamping area can have two actuating surfaces formed on the side of the clamping area for actuating the clamping spring by means of the actuating element. Due to the actuating surfaces formed on the side, the clamping spring can have a greater width in its clamping area than the rest of the clamping spring. The actuating surfaces can form a pressure surface for the actuating element so that the actuating element can actuate the clamping spring at the level of its clamping area. The strength of the pressure force to be applied to the clamping spring by means of the actuating element to transfer the clamping spring from the clamped state to the non-clamped state can thus be reduced.

Weiter ist es möglich, dass auch die Stromschiene an dem Aufnahmeelement befestigt ist. Die Stromschiene kann dabei ebenso wie die Klemmfeder in die Aufnahmetasche des Aufnahmeelements eingelegt sein. Die Klemmfeder kann an einem Bodenabschnitt der Aufnahmetasche angeordnet sein und die Stromschiene kann an einem dem Bodenabschnitt gegenüberliegenden Deckenabschnitt der Aufnahmetasche angeordnet sein, so dass sich die Klemmfeder und die Stromschiene gegenüberliegen. Insbesondere im nicht geklemmten Zustand können Klemmfeder und Stromschiene im Wesentlichen parallel zueinander verlaufend angeordnet sein. Die Stromschiene kann mittels einer Rastverbindung an dem Aufnahmeelement befestigt sein.It is also possible for the busbar to be attached to the receiving element. The busbar can be inserted into the receiving pocket of the receiving element in the same way as the clamping spring. The clamping spring can be arranged on a base section of the receiving pocket and the busbar can be arranged on a ceiling section of the receiving pocket opposite the base section, so that the clamping spring and the busbar are opposite each other. In particular, when not clamped, the clamping spring and the busbar can be arranged to run essentially parallel to each other. The busbar can be attached to the receiving element by means of a snap-in connection.

Bevorzugt ist das Betätigungselement derart vorgesehen, dass das Betätigungselement eine Betätigungsrichtung aufweist, welche quer zu einer Einführungsrichtung des anzuschließenden Leiters in die elektrische Anschlussklemme ausgebildet ist. Die Betätigung des Betätigungselements erfolgt vorzugsweise entlang seiner Längsachse, so dass das Betätigungselement vorzugsweise längsverschiebbar in der Anschlussklemme angeordnet ist. Das Betätigungselement ist dabei vorzugsweise in eine Richtung quer zur Einführungsrichtung des Leiters längsverschiebbar angeordnet. Die Betätigungsrichtung des Betätigungselements ist damit vorzugsweise gerade nicht parallel zu der Einführungsrichtung des Leiters ausgebildet.Preferably, the actuating element is provided such that the actuating element has an actuating direction which is transverse to an insertion direction of the to be connected into the electrical connection terminal. The actuation of the actuating element preferably takes place along its longitudinal axis, so that the actuating element is preferably arranged so as to be longitudinally displaceable in the connection terminal. The actuating element is preferably arranged so as to be longitudinally displaceable in a direction transverse to the direction of insertion of the conductor. The actuation direction of the actuating element is therefore preferably not parallel to the direction of insertion of the conductor.

Das Betätigungselement weist bevorzugt zwei sich gegenüberliegende Betätigungsfinger zum Betätigen der Klemmfeder auf, wobei zwischen den beiden Betätigungsfingern ein Freiraum zum Durchführen des anzuschließenden Leiters ausgebildet sein kann. Zum Betätigen der Klemmfeder kann das Betätigungselement damit mit seinen beiden Betätigungsfingern an dem Leiter seitlich vorbeigeführt werden. Durch diese Ausbildung des Betätigungselements kann eine besonders kompakte Ausgestaltung der Anschlussklemme erreicht werden. Die beiden Betätigungsfinger erstrecken sich vorzugsweise in Richtung der Längsachse des Betätigungselements und können damit eine Art Verlängerung des Betätigungselements ausbilden.The actuating element preferably has two opposing actuating fingers for actuating the clamping spring, whereby a free space can be formed between the two actuating fingers for passing through the conductor to be connected. To actuate the clamping spring, the actuating element can thus be guided laterally past the conductor with its two actuating fingers. This design of the actuating element enables a particularly compact design of the connection terminal to be achieved. The two actuating fingers preferably extend in the direction of the longitudinal axis of the actuating element and can thus form a type of extension of the actuating element.

Weiter ist es bevorzugt vorgesehen, dass die Anschlussklemme ein Isolierstoffgehäuse aufweist, innerhalb welchem die Stromschiene, die Klemmfeder, das Betätigungselement und das Aufnahmeelement angeordnet sein können. Das Isolierstoffgehäuse kann eine Leitereinführungsöffnung und eine Aufnahmeöffnung für das Betätigungselement aufweisen, wobei die Leitereinführungsöffnung an einer ersten Seite des Isolierstoffgehäuses ausgebildet sein kann und wobei die Aufnahmeöffnung an einer sich quer zu der ersten Seite erstreckenden zweiten Seite des Isolierstoffgehäuses ausgebildet sein kann.Furthermore, it is preferably provided that the connection terminal has an insulating housing within which the busbar, the clamping spring, the actuating element and the receiving element can be arranged. The insulating housing can have a conductor insertion opening and a receiving opening for the actuating element, wherein the conductor insertion opening can be formed on a first side of the insulating housing and wherein the receiving opening can be formed on a second side of the insulating housing extending transversely to the first side.

Nachfolgend wird die Erfindung unter Bezugnahme auf die anliegenden Zeichnungen anhand einer bevorzugten Ausführungsform näher erläutert.The invention is explained in more detail below with reference to the accompanying drawings using a preferred embodiment.

Es zeigen:

Fig. 1
eine schematische Darstellung einer elektrischen Anschlussklemme gemäß der Erfindung in einer perspektivischen Ansicht mit der Klemmfeder im nicht geklemmten Zustand,
Fig. 2
eine schematische Darstellung der in Fig. 1 gezeigten Anschlussklemme in einer Seitenansicht,
Fig. 3
eine schematische Darstellung der in Fig. 1 und 2 gezeigten Anschlussklemme mit einem Isolierstoffgehäuse,
Fig. 4
eine schematische Darstellung der Anschlussklemme gemäß der Erfindung in einem geklemmten Zustand der Klemmfeder mit einem angeschlossenen Leiter,
Fig. 5
eine schematische Darstellung der in Fig. 3 gezeigten Anschlussklemme mit Isolierstoffgehäuse und Betätigungselement, und
Fig. 6
eine schematische Darstellung der Anschlussklemme beim Überführen der Klemmfeder von dem geklemmten Zustand zurück in den nicht geklemmten Zustand.
Show it:
Fig.1
a schematic representation of an electrical connection terminal according to the invention in a perspective view with the clamping spring in the non-clamped state,
Fig.2
a schematic representation of the Fig.1 shown terminal in a side view,
Fig.3
a schematic representation of the Fig. 1 and 2 shown terminal with an insulating housing,
Fig.4
a schematic representation of the connection terminal according to the invention in a clamped state of the clamping spring with a connected conductor,
Fig.5
a schematic representation of the Fig.3 shown connection terminal with insulating housing and actuating element, and
Fig.6
a schematic representation of the connection terminal when the clamping spring is transferred from the clamped state back to the non-clamped state.

Fig. 1 zeigt eine elektrische Anschlussklemme 100 zum Anschließen eines elektrischen Leiters 200, welche eine Stromschiene 10 und Klemmfeder 11 aufweist, wobei zum Anschließen des Leiters 200 dieser mittels der Klemmfeder 11 gegen die Stromschiene 10 geklemmt wird. Sowohl die Klemmfeder 11 als auch die Stromschiene 10 sind an einem Aufnahmeelement 12 angeordnet. Fig.1 shows an electrical connection terminal 100 for connecting an electrical conductor 200, which has a busbar 10 and clamping spring 11, wherein in order to connect the conductor 200, the latter is clamped against the busbar 10 by means of the clamping spring 11. Both the clamping spring 11 and the busbar 10 are arranged on a receiving element 12.

Die Klemmfeder 11 ist als Blattfeder ausgebildet, welche blattförmig bzw. streifenförmig ausgebildet ist. Die Klemmfeder 11 ist in das Aufnahmeelement 12 eingelegt und an dem Aufnahmeelement 12 befestigt. Die Klemmfeder 11 weist dafür an einem ersten Endabschnitt 13 einen Befestigungsbereich auf, mittels welchem die Klemmfeder 11 an dem Aufnahmeelement 12 befestigt ist. An einem dem ersten Endabschnitt 13 gegenüberliegenden zweiten Endabschnitt 14 bildet die Klemmfeder 11 ihren Klemmbereich aus, mit welchem im geklemmten Zustand die Klemmfeder 11 den in die Anschlussklemme 100 eingeführten Leiter 200 gegen die Stromschiene 10 klemmt und damit elektrisch kontaktierend anschließt. An ihrem den Klemmbereich ausbildenden zweiten Endabschnitt 14 weist die Klemmfeder 11 zwei seitlich angeformte Betätigungsflächen 30, 31 zum Betätigen der Klemmfeder 11 mittels eines Betätigungselements 32 auf.The clamping spring 11 is designed as a leaf spring, which is leaf-shaped or strip-shaped. The clamping spring 11 is inserted into the receiving element 12 and fastened to the receiving element 12. The clamping spring 11 has a fastening area on a first end section 13, by means of which the clamping spring 11 is fastened to the receiving element 12. At a second end section 14 opposite the first end section 13, the clamping spring 11 forms its clamping area, with which, in the clamped state, the clamping spring 11 clamps the conductor 200 inserted into the connection terminal 100 against the busbar 10 and thus connects it in an electrically contacting manner. At its second end section 14 forming the clamping area, the clamping spring 11 has two actuating surfaces 30, 31 formed on the side for actuating the clamping spring 11 by means of an actuating element 32.

Das Aufnahmeelement 12 weist eine Aufnahmetasche 15 und ein Halteelement 16 auf, wobei die Aufnahmetasche 15 mit dem Halteelement 16 über einen federelastisch ausgebildeten Steg 17 miteinander verbunden sind.The receiving element 12 has a receiving pocket 15 and a holding element 16, wherein the receiving pocket 15 is connected to the holding element 16 via a spring-elastic web 17.

Das Halteelement 16 dient dazu, die Klemmfeder 11 in einem nicht geklemmten Zustand, das heißt wenn die Klemmfeder 11 keinen Leiter 200 gegen die Stromschiene 10 klemmt, zu halten, insbesondere an ihrem den Klemmbereich ausbildenden zweiten Endabschnitt 14 zu halten, damit ein Freiraum bzw. Zwischenraum zwischen der Stromschiene 10 und der Klemmfeder 11 ausgebildet ist, wie beispielsweise in Fig. 1 zu erkennen ist, in welchen ein Leiter 200 eingeführt werden kann.The holding element 16 serves to hold the clamping spring 11 in a non-clamped state, i.e. when the clamping spring 11 is not clamping a conductor 200 against the busbar 10, in particular at its second end section 14 forming the clamping area, so that a free space or gap is formed between the busbar 10 and the clamping spring 11, as for example in Fig.1 can be seen, into which a conductor 200 can be inserted.

Das Halteelement 16 ist U-förmig ausgebildet. An einer zwischen zwei parallel zueinander verlaufenden Schenkeln 18, 19 ausgebildeten Wand 20 weist das Halteelement 16 eine Druckfläche 21 auf, welche in Richtung eines einzuführenden Leiters 200 gerichtet ist. Beim Einführen eines anzuschließenden Leiters 200 in die Anschlussklemme 100 kann dieser Leiter 200 gegen die Druckfläche 21 drücken, wodurch das gesamte Halteelement 16 von dem Leiter 200 und damit auch von der Klemmfeder 11 in Schwenkrichtung S wegverschwenkt werden kann, so dass die Klemmfeder 11 von dem Halteelement 16 gelöst wird und mit dadurch mit ihrem zweiten Endabschnitt 14 in Richtung der Stromschiene 10 bewegt werden kann, um den eingeführten Leiter 200 gegen die Stromschiene 10 zu klemmen.The holding element 16 is U-shaped. On a wall 20 formed between two legs 18, 19 running parallel to one another, the holding element 16 has a pressure surface 21 which is directed in the direction of a conductor 200 to be inserted. When a conductor 200 to be connected is inserted into the connection terminal 100, this conductor 200 can press against the pressure surface 21, whereby the entire holding element 16 can be pivoted away from the conductor 200 and thus also from the clamping spring 11 in the pivoting direction S, so that the clamping spring 11 is released from the holding element 16 and can thus be moved with its second end section 14 in the direction of the busbar 10 in order to clamp the inserted conductor 200 against the busbar 10.

An den beiden Schenkeln 18, 19 des Halteelements 16 ist jeweils eine Rastnase 22, 23 ausgebildet, welche jeweils einen Hintergriff aufweisen, an welchem die Klemmfeder 11 im nicht geklemmten Zustand hinterrasten kann, um an dem Halteelement 16 gehalten zu werden. Die Rastnasen 22, 23 verlaufen im Gegensatz zu den Schenkeln 18, 19 nicht parallel zueinander, sondern sind zueinander gebogen ausgebildet, so dass sie aufeinander zu gerichtet sind.A locking lug 22, 23 is formed on each of the two legs 18, 19 of the holding element 16, each of which has a rear grip onto which the clamping spring 11 can engage in the non-clamped state in order to be held on the holding element 16. In contrast to the legs 18, 19, the locking lugs 22, 23 do not run parallel to one another, but are bent towards one another so that they are directed towards one another.

Mittels des federelastisch ausgebildeten Stegs 17 ist das Halteelement 16 relativ zu der Aufnahmetasche 15 bewegbar, insbesondere verschwenkbar ausgebildet. Das Halteelement 16 selber ist starr ausgebildet. Der federelastisch ausgebildete Steg 17 ermöglicht damit eine Verschwenkbewegung des Halteelements 16 in Schwenkrichtung S, wenn ein Leiter 200 gegen das Halteelement 16 drückt und der Steg 17 ermöglicht, dass das Halteelement 16, wenn der Leiter 200 nicht mehr geklemmt ist, entgegen der Schwenkrichtung S zurück in seine Ausgangslage verschwenkt, damit die Klemmfeder im nicht geklemmten Zustand wieder an dem Halteelement 16 gehalten bzw. verrastet werden kann.By means of the spring-elastic web 17, the holding element 16 is movable relative to the receiving pocket 15, in particular pivotable. The holding element 16 itself is rigid. The spring-elastic web 17 thus enables a pivoting movement of the holding element 16 in the pivoting direction S when a conductor 200 presses against the holding element 16 and the web 17 enables the holding element 16, when the conductor 200 is no longer clamped, to pivot back into its starting position against the pivoting direction S so that the clamping spring in the non-clamped state can be held or locked again on the holding element 16.

Zur Erhöhung der Federwirkung weist der federelastisch ausgebildete Steg 17 eine Querschnittsreduzierung 24 entlang seiner Länge auf, so dass der Steg 17 tailliert ausgebildet ist, wie insbesondere in Fig. 6 zu erkennen ist. Die Querschnittsreduzierung 24 ist in Richtung des Halteelements 16 ausgebildet, so dass im Bereich der Anbindung des Stegs 17 an das Halteelement 16 der Steg 17 einen kleineren Querschnitt und damit eine kleinere Breite aufweist als im Bereich der Anbindung des Stegs 17 an die Aufnahmetasche 15.To increase the spring effect, the spring-elastic web 17 has a cross-sectional reduction 24 along its length, so that the web 17 is waisted, as shown in particular in Fig.6 can be seen. The cross-sectional reduction 24 is formed in the direction of the holding element 16, so that in the area of the connection of the web 17 to the holding element 16, the web 17 has a smaller cross-section and thus a smaller width than in the area of the connection of the web 17 to the receiving pocket 15.

Die Aufnahmetasche 15 ist derart ausgebildet, dass diese die in die Aufnahmetasche 15 eingelegte Klemmfeder 11 umfangsseitig umschließt. Die Aufnahmetasche 15 bildet zudem eine fensterartige Öffnung 25 aus, durch welche der anzuschließende Leiter 200 beim Anschließen durchgeführt wird, wie in Fig. 4 zu erkennen ist. Die fensterartige Öffnung 25 ist an ihrem Umfang geschlossen ausgebildet. Die Aufnahmetasche 15 ist ebenso wie das Halteelement 16 starr ausgebildet.The receiving pocket 15 is designed in such a way that it encloses the clamping spring 11 inserted into the receiving pocket 15 on the circumference. The receiving pocket 15 also forms a window-like opening 25 through which the conductor 200 to be connected is passed during connection, as shown in Fig.4 can be seen. The window-like opening 25 is closed at its periphery. The receiving pocket 15 is rigid, as is the holding element 16.

Auch die Stromschiene 10 ist an dem Aufnahmeelement 12 gehalten, indem die Stromschiene 10 an der Aufnahmetasche 15 befestigt ist. Die Stromschiene 10 ist ebenso wie die Klemmfeder 11 in die Aufnahmetasche 15 des Aufnahmeelements 12 eingelegt. Die Klemmfeder 11 ist an einem Bodenabschnitt 26 der Aufnahmetasche 15 angeordnet und die Stromschiene 10 ist an einem dem Bodenabschnitt 26 gegenüberliegenden Deckenabschnitt 27 der Aufnahmetasche 15 angeordnet, so dass sich die Klemmfeder 11 und die Stromschiene 10 gegenüberliegen. Die Stromschiene 10 ist mittels einer Rastverbindung an dem Aufnahmeelement 12 befestigt sein. Im Bereich der Aufnahmetasche 15 weist das Aufnahmeelement 12 dafür zwei gegenüberliegende Ausnehmungen 28, 29 auf, in welchen die Stromschiene 10 eingerastet ist.The busbar 10 is also held on the receiving element 12 by fastening the busbar 10 to the receiving pocket 15. The busbar 10, like the clamping spring 11, is inserted into the receiving pocket 15 of the receiving element 12. The clamping spring 11 is arranged on a base section 26 of the receiving pocket 15 and the busbar 10 is arranged on a ceiling section 27 of the receiving pocket 15 opposite the base section 26, so that the clamping spring 11 and the busbar 10 are opposite each other. The busbar 10 is fastened to the receiving element 12 by means of a locking connection. In the area of the receiving pocket 15, the receiving element 12 has two opposing recesses 28, 29 into which the busbar 10 is locked.

Fig. 2 zeigt eine Seitenansicht der in Fig. 1 gezeigten Anschlussklemme 100, wobei hier zu erkennen ist, dass die Klemmfeder 11 im Bereich ihres ersten Endabschnitts 13 flächig auf dem Aufnahmeelement 12, insbesondere auf der Aufnahmetasche 15 des Aufnahmeelements 12 aufliegt. Fig.2 shows a side view of the Fig.1 shown connection terminal 100, wherein it can be seen here that the clamping spring 11 rests flat on the receiving element 12, in particular on the receiving pocket 15 of the receiving element 12, in the region of its first end section 13.

Fig. 3 zeigt ein Isolierstoffgehäuse 33 der Anschlussklemme 100, in welchem die Stromschiene 10, die Klemmfeder 11, das Aufnahmeelement 12 und das Betätigungselement 32 angeordnet sind. Das Isolierstoffgehäuse 33 weist eine Leitereinführungsöffnung 34 zum Einführen des Leiters 200 in die Anschlussklemme 100 und eine Aufnahmeöffnung 35, in welcher das Betätigungselement 32 längsverschiebbar geführt ist, auf, wobei die Leitereinführungsöffnung 34 an einer ersten Seite 36 des Isolierstoffgehäuses 33 ausgebildet ist und wobei die Aufnahmeöffnung 35 an einer sich quer zu der ersten Seite 36 erstreckenden zweiten Seite 37 des Isolierstoffgehäuses 33 ausgebildet ist. Das Betätigungselement 32 weist damit eine Betätigungsrichtung B auf, welche quer zu einer Einführungsrichtung E des anzuschließenden Leiters 200 in die Anschlussklemme 100 ausgebildet ist. Fig.3 shows an insulating housing 33 of the connection terminal 100, in which the busbar 10, the clamping spring 11, the receiving element 12 and the actuating element 32 are arranged. The insulating housing 33 has a conductor insertion opening 34 for inserting the conductor 200 into the connection terminal 100 and a receiving opening 35 in which the actuating element 32 is guided so as to be longitudinally displaceable, wherein the conductor insertion opening 34 is formed on a first side 36 of the insulating housing 33 and wherein the receiving opening 35 is formed on a second side 37 of the insulating housing 33 extending transversely to the first side 36. The actuating element 32 thus has an actuation direction B which is formed transversely to an insertion direction E of the conductor 200 to be connected into the connection terminal 100.

Das Betätigungselement 32 ist in Form eines Pushers ausgebildet. Das Betätigungselement 32 weist an seinem in Richtung Klemmfeder 11 zeigenden Ende zwei sich gegenüberliegende Betätigungsfinger 38, 39 auf, wobei zwischen den Betätigungsfingern 38, 39 ein Freiraum zum Durchführen des anzuschließenden Leiters 200 ausgebildet ist, wie beispielsweise in Fig. 5 zu erkennen ist. Zum Überführen der Klemmfeder 11 von dem geklemmten Zustand in den nicht geklemmten Zustand können die Betätigungsfinger 38, 39 eine Druckkraft auf die Betätigungsflächen 30, 31 der Klemmfeder 11 aufbringen, um diese von dem Leiter 200 wegzubekommen und wieder mit ihrem zweiten Endabschnitt 14 an dem Halteelement 16 zu verrasten.The actuating element 32 is designed in the form of a pusher. The actuating element 32 has two opposing actuating fingers 38, 39 at its end pointing towards the clamping spring 11, wherein a free space is formed between the actuating fingers 38, 39 for the passage of the conductor 200 to be connected, as for example in Fig.5 can be seen. To transfer the clamping spring 11 from the clamped state to the non-clamped state, the actuating fingers 38, 39 can apply a compressive force to the actuating surfaces 30, 31 of the clamping spring 11 in order to move it away from the conductor 200 and to lock it again with its second end section 14 to the holding element 16.

Fig. 4 und 5 zeigen einen in die Anschlussklemme 100 eingeführten Leiter 200, welcher gegen die Druckfläche 21 des Halteelements 16 drückt und dadurch das Halteelement 16 verschwenkt bzw. nach hinten in Schwenkrichtung S auslenkt, so dass die Klemmfeder 11 mit ihrem zweiten Endabschnitt 14 und damit mit ihrem Klemmbereich von den Rastnasen 22, 23 des Halteelements 16 gelöst wird, um den Leiter 200 gegen die Stromschiene 10 zu klemmen. Fig.4 and 5 show a conductor 200 inserted into the connection terminal 100, which presses against the pressure surface 21 of the holding element 16 and thereby pivots the holding element 16 or deflects it backwards in the pivoting direction S, so that the clamping spring 11 with its second end section 14 and thus with its clamping area is released from the locking lugs 22, 23 of the holding element 16 in order to clamp the conductor 200 against the busbar 10.

Wird der Leiter 200 wieder aus der Anschlussklemme 100 entfernt, kann die Klemmfeder 11 durch Betätigen mittels des Betätigungselements 32, wie in Fig. 6 zu erkennen ist, zurück in Richtung des Halteelements 16 bewegt werden und an dem Halteelement 16 verrastet werden.If the conductor 200 is removed from the terminal 100, the clamping spring 11 can be actuated by means of the actuating element 32, as shown in Fig.6 can be seen, are moved back in the direction of the holding element 16 and locked onto the holding element 16.

BezugszeichenlisteList of reference symbols

AnschlussklemmeConnection terminal 100100 StromschieneBusbar 1010 KlemmfederClamping spring 1111 AufnahmeelementRecording element 1212 Erster EndabschnittFirst final section 1313 Zweiter EndabschnittSecond final section 1414 AufnahmetascheRecording pocket 1515 HalteelementHolding element 1616 Stegweb 1717 Schenkelleg 1818 Schenkelleg 1919 WandWall 2020 DruckflächePrinting area 2121 Rastnaselocking lug 2222 Rastnaselocking lug 2323 QuerschnittsreduzierungCross-section reduction 2424 Öffnungopening 2525 BodenabschnittFloor section 2626 DeckenabschnittCeiling section 2727 AusnehmungRecess 2828 AusnehmungRecess 2929 BetätigungsflächeActuating surface 3030 BetätigungsflächeActuating surface 3131 BetätigungselementActuator 3232 IsolierstoffgehäuseInsulated housing 3333 LeitereinführungsöffnungConductor entry opening 3434 AufnahmeöffnungReceiving opening 3535 Erste SeiteFirst page 3636 Zweite SeiteSecond page 3737 BetätigungsfingerActuating finger 3838 BetätigungsfingerActuating finger 3939 LeiterDirector 200200 BetätigungsrichtungActuation direction BB EinführungsrichtungIntroduction direction EE SchwenkrichtungPanning direction SS

Claims (9)

  1. Electrical connection terminal (100) for connection of a conductor (200), having
    a busbar (10),
    a clamping spring (11) by means of which the conductor (200) is clamped against the busbar (10) in a clamped state, and
    an actuating element (32) by means of which the clamping spring (11) is transferable from the clamped state into a non-clamped state,
    wherein provision is made of a receiving element (12) to which the clamping spring is fastened, wherein the receiving element (12) has a holding element (16) on which the clamping spring (11) is held in the non-clamped state and from which the clamping spring (11) is released in the clamped state, wherein, for release of the clamping spring (11) from the holding element (16), the holding element (16) is pivotable, wherein the holding element (16) has a pressure-exertion surface (21) which, for execution of the pivoting movement, is actuatable by means of the conductor (200) to be connected, characterized in that the clamping spring is in the form of a leaf spring, which is formed to be elongate and thus to have a sheet-like or strip-like contour.
  2. Electrical connection terminal (100) according to Claim 1, characterized in that the receiving element (12) has a receiving pocket (15) in which the clamping spring (11) is placed, wherein a web (17) of resiliently elastic form on which the holding element (16) is arranged is integrally formed on the receiving pocket (15).
  3. Electrical connection terminal (100) according to Claim 2, characterized in that the web (17) of resiliently elastic form has a cross-sectional reduction (24) along its length.
  4. Electrical connection terminal (100) according to one of Claims 1 to 3, characterized in that the holding element (16) has two oppositely situated latching noses (18, 19) for holding the clamping spring (11) in the non-clamped state, wherein the latching noses (18, 19) are formed so as to be bent in relation to one another.
  5. Electrical connection terminal (100) according to one of Claims 1 to 4, characterized in that the clamping spring (11) has a clamping region by means of which, in the clamped state, the conductor (200) is clamped against the busbar (10), wherein the clamping region has two actuation surfaces (30, 31) which are laterally integrally formed on the clamping region and which serve for actuation of the clamping spring (11) by means of the actuating element (32).
  6. Electrical connection terminal (100) according to one of Claims 1 to 5, characterized in that the busbar (10) is fastened to the receiving element (12) .
  7. Electrical connection terminal (100) according to one of Claims 1 to 6, characterized in that the actuating element (32) has an actuation direction (B) which is configured to be transverse to an insertion direction (E) into the electrical connection terminal (100) of the conductor (200) to be connected.
  8. Electrical connection terminal (100) according to one of Claims 1 to 7, characterized in that the actuating element (32) has two oppositely situated actuating fingers (38, 39) for actuating the clamping spring (11), wherein a clearance for passage of the conductor (200) to be connected is formed between the two actuating fingers (38, 39).
  9. Electrical connection terminal (100) according to one of Claims 1 to 8, characterized in that provision is made of an insulating-material housing (33) within which the busbar (10), the clamping spring (11), the actuating element (32) and the receiving element (12) are arranged.
EP20715348.7A 2019-04-16 2020-03-27 Electrical connection terminal Active EP3956947B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102019109974.9A DE102019109974A1 (en) 2019-04-16 2019-04-16 Electrical connection terminal
PCT/EP2020/058748 WO2020212120A1 (en) 2019-04-16 2020-03-27 Electrical connection terminal

Publications (2)

Publication Number Publication Date
EP3956947A1 EP3956947A1 (en) 2022-02-23
EP3956947B1 true EP3956947B1 (en) 2024-05-01

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EP20715348.7A Active EP3956947B1 (en) 2019-04-16 2020-03-27 Electrical connection terminal

Country Status (4)

Country Link
EP (1) EP3956947B1 (en)
CN (1) CN113711445B (en)
DE (1) DE102019109974A1 (en)
WO (1) WO2020212120A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202020107531U1 (en) 2020-12-23 2022-03-31 WAGO Verwaltungsgesellschaft mit beschränkter Haftung Contact insert for a conductor connection terminal
DE102022111342A1 (en) 2022-05-06 2023-11-09 Weidmüller Interface GmbH & Co. KG Connection device designed as a spring-loaded terminal for connecting a conductor
LU502926B1 (en) * 2022-10-19 2024-04-19 Phoenix Contact Gmbh & Co Connection terminal for connecting an electrical cable

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3019149C2 (en) * 1980-05-20 1983-05-05 Phönix Elektrizitätsgesellschaft H. Knümann GmbH & Co KG, 4933 Blomberg Screwless connector
DE202005005369U1 (en) * 2004-11-13 2006-03-16 Weidmüller Interface GmbH & Co. KG Connecting device for direct plug connection of conductor ends and electrical device with such a connection device
DE202009005809U1 (en) * 2009-04-18 2010-09-16 Weidmüller Interface GmbH & Co. KG Pin or socket contact with spring clamp
DE102010025930B4 (en) * 2010-07-02 2019-10-17 Phoenix Contact Gmbh & Co. Kg terminal
DE102012110759B4 (en) * 2012-11-09 2021-04-01 Wago Verwaltungsgesellschaft Mbh Spring clamp connection and electrical device herewith
DE202013100740U1 (en) * 2013-02-19 2013-03-08 Weidmüller Interface GmbH & Co. KG Spring terminal for conductor
DE202014103797U1 (en) * 2013-08-27 2014-11-28 Weidmüller Interface GmbH & Co. KG Spring terminal for conductor
DE102014102517B4 (en) * 2014-02-26 2021-06-10 Wago Verwaltungsgesellschaft Mbh Connecting terminal and spring-loaded terminal contact for this
DK2947718T3 (en) * 2014-05-23 2018-03-19 Berker Gmbh & Co Kg Pinch Spring connection Terminal
EP3116065B1 (en) * 2015-07-07 2019-08-28 TE Connectivity Germany GmbH Push-in clamp retainer, push-in clamp assembly and electric connector element
DE102015115490B4 (en) * 2015-09-15 2022-11-10 Phoenix Contact Gmbh & Co. Kg Connection device and terminal block
CN109314324B (en) * 2016-05-30 2021-03-30 威德米勒界面有限公司及两合公司 Spring force terminal for conductor

Also Published As

Publication number Publication date
WO2020212120A1 (en) 2020-10-22
DE102019109974A1 (en) 2020-10-22
CN113711445A (en) 2021-11-26
CN113711445B (en) 2024-06-07
EP3956947A1 (en) 2022-02-23

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