EP2956992B1 - Conductor terminal - Google Patents

Description

The invention relates to a conductor terminal with an insulating material housing and with at least one spring terminal connection in the insulating housing and with at least one actuating element, which is pivotally received in the insulating housing and designed to open each at least one associated spring terminal connection. Actuator of the conductor terminal has two spaced sidewall portions which are at least partially immersed with a pivot bearing portion in the insulating housing and spaced from each other to the pivot bearing portion with a transverse web to a lever arm are connected. The pivot bearing portions of the spaced-apart side wall portions of an actuating element form an axis of rotation about which the actuating element is pivotally mounted in the insulating material. An associated spring terminal connection is then at least partially received in the space between the pivot bearing areas of an actuating element. The pivot bearing areas have actuating portions, each for applying an associated clamping spring of a Federkraftklemmanschlusses when pivoting the actuating element of a closed position in which the actuating element pivoted with its crosspiece in the direction of insulating material and a terminal formed by the Federkraftklemmanschluss terminal for clamping an electrical conductor is closed in a Open position in which the actuating element is pivoted away with its crosspiece of the insulating material and a terminal formed by the Federkraftklemmanschluss open terminal for clamping an electrical conductor, are formed.

Conductor terminals are known in many forms, for example, as terminal blocks, PCB terminals, terminal blocks or as conductor terminals in other electrical equipment.

DE 299 15 515 U1 discloses a spring clip for connecting electrical conductors to an insulating housing having a terminal with a a busbar piece cooperating clamping spring has. In the insulating housing, an actuating element in the form of an eccentric lever is integrated, which is rotatably mounted in the insulating housing. The axis of rotation of the eccentric lever is substantially perpendicular to the nip. This leads to a relatively large height.

Out DE 87 04 494 U1 is a terminal with a Federkraftklemmanschluss and an actuating lever is known in which the operating lever is seen pivotally mounted with its axis of rotation in Leitereinsteckrichtung seen behind the nip below the clamping spring. At the free clamping leg end an actuating tab is bent, which cooperates with an actuating finger of the actuating lever to open the Federkraftklemmanschlusses.

EP 1 622 224 B1 discloses a terminal with an actuating lever which is rotatably mounted in a bend of a busbar. The nip between Klemmfederende and busbar is provided below the axis of rotation. The operating lever is disposed with an operating portion in the clamping space adjacent to the conductor insertion opening.

DE 20 2009 010 003 U1 shows a connection terminal with a release lever with pivot means for pivoting a connecting spring with respect to a busbar piece. The separating lever is mounted on a recess formed by the busbar piece to form the pivot axis, so that with a by hand with a lever actuating force to be acted upon actuating finger and a contact portion for actuating the clamping spring a pivotable about the intermediate axis of rotation lever arm is formed.

Furthermore, in DE 10 2010 024 809 A1 a terminal with a Isolierstoffgehäuse, a busbar section and described with at least one spring clamp unit with a clamping spring. The clamping spring has an outgoing from a clamping portion operating portion, extending from the Direction of the force acting on the clamping portion spring force of the clamping spring extends and is aligned to be acted upon by a pivotally mounted actuating lever, that the actuating lever for opening the clamping spring applying a counter to the spring force acting tensile force on the actuating portion.

DE 1 575 118 A1 shows a screwless clamp with a tiltably mounted in a housing lever. The lever has a recess in which engages the leaf spring. The lever has bends on three sides, of which two opposing bends form side wall sections which are guided on the inner wall of the housing. A development in the lower area forms a crosspiece, which is stored in a pocket of the housing. The side walls are interconnected by a further web, which acts on the clamping leg of the clamping spring for actuating the clamping spring. For this purpose, the lever pivots with its web in two recesses in the front region of legs of a contact rail, which are encompassed by the side wall portions of the lever.

EP 1 622 224 B1 shows an electrical device with an automatic terminal that has an operating lever. The actuating levers have between a busbar and an inner wall of the insulating housing mounted pivot pin.

Based on this, it is an object of the present invention to provide an improved, as small as possible conductor terminal with a Isolierstoffgehäuse and at least one Federkraftklemmanschluss in Isolierstoffgehäuse and at least one actuating element which is pivotally received in the insulating material and designed to open each at least one associated Federkraftklemmanschlusses , The conductor terminal is thereby also in view of the force influence of the actuating element on the insulating material and the power transmission of the externally applied to the actuating element lever pivoting force on the actuating force, which acts on the clamping spring optimized his.

The object is achieved by the conductor terminal with the features of claim 1. Advantageous embodiments are described in the subclaims.

It is proposed that two operating portions are arranged at the pivot bearing portions of the side wall portions at a smaller distance from each other, than the distance between the side wall portions. The actuating portions extend parallel to the side wall portions and are integrally formed with the side wall portions so that in each case a guide slot between an actuating portion and the associated, directly adjacent side wall portion is present. In each case, a guide web of the insulating housing then immersed in an associated guide slot for guiding the actuating element during pivotal movement about a pivot axis in the pivot bearing area.

With the help of the side walls of the U-shaped lever arm by an intermediate guide slot spaced actuating portions is achieved that the lever arm can be tiltably supported tiltable by a dipping into a respective guide slot guide web of the insulating material. With the help of the guide slots and the guide webs engaging therewith can be realized in a space-saving very stable pivot bearings, which lie substantially laterally next to the Federkraftklemmanschlüssen.

The actuating element forms an approximately U-shaped actuating lever, which receives the spring force clamping connection at least partially in the free space bounded laterally by the side wall sections. The pivot bearing areas are thus not above, not below, not in front of or not behind the Federkraftklemmanschluss, but laterally next to the Federkraftklemmanschluss or to be operated clamping spring of Federkraftklemmanschlusses.

For a very compact conductor terminal is realized in which the actuating lever with the laterally arranged next to the Federkraftklemmanschluss in Isolierstoffgehäuse pivot bearing areas is stored stable and robust in the insulating housing pivotally.

Due to the interaction of the measures described an extremely compact conductor terminal is realized, the pivot lever are stably mounted in the Isolierstoffgehäuse stable without acting on the at least one pivot lever actuating forces the insulating material excessively.

In a preferred embodiment, the actuating element is so matched to the insulating material housing and the associated spring terminal connection, that for pivoting the actuating element acting from the closed position to the open position on the cross bar lever pivoting force as well as that of the operating sections upon pivoting of the actuating element from the closed position to the open position act on the clamping spring acting spring force relative to the axis of rotation on the same side.

By positioning the axis of rotation in Isolierstoffgehäuse by appropriate design of the pivot bearing areas and by appropriate arrangement of the actuating portions relative to the clamping spring is achieved that the applied to the operating lever from the outside lever pivoting force with respect to the axis of rotation on the same side to the axis of rotation acts as that of the Operating portions applied to the clamping spring spring actuating force. This kinematics is realized, which allows a very compact design of a conductor terminal with optimum power transmission. In particular, it can be achieved that the lever pivoting force and the spring actuating force acts in the same direction, ie upwards or downwards. In this case, "upwards" is understood to mean a principal direction independent of the exact extension angle which corresponds to the extension direction of an open lever arm, which direction points towards the free end. By "down" is meant the opposite direction regardless of the exact angular position. It therefore does not matter that the forces are alike act parallel to each other.

A particularly compact design with optimum guidance and storage of the actuating elements can be achieved if the adjacent side wall sections of two actuating elements arranged next to one another in the insulating housing adjoin one another directly. The outer walls of the side wall portions of juxtaposed actuators serve for mutual guidance and give the adjacent actuator an additional grip.

The insulating housing is preferably designed in two parts with a terminal housing parts and a separate cover part. The terminal housing part and the cover part are connected to one another in the assembled state with the at least one spring-force clamping connection and associated actuating element inserted into the terminal housing part. The pivot bearing area is then accommodated in a gap formed between the terminal housing part and cover part.

Thus, the spring terminal connection and the associated actuating element during assembly can first be inserted into the terminal housing part. The conductor connection terminal is then closed by latching the cover part in the terminal housing part. By arranging the pivot bearing area in a gap between the terminal housing part and cover part can then contribute portions of both terminal housing part, and cover part for pivotal mounting of the pivot bearing area. For this purpose, these bearing sections are preferably part-circular curved and adapted to corresponding part-circular curvatures of end faces of the pivot bearing area.

The terminal housing part and / or the cover part preferably have part-circular bearing recesses for the pivotable mounting of the actuating element in the insulating material housing. A corresponding to the part-circular bearing recess adapted partial circular outer periphery of the pivot bearing area then immersed in an associated storage trough.

It is particularly advantageous if the actuating sections have a part-circular outer circumference with a V-shaped notch to form a shoulder projecting in the direction of the center of the actuating section. The at least one spring terminal connection each has a busbar section and a clamping spring with an actuating tab. The actuating tab of the clamping spring is on pivoting of the actuating element for opening a clamping point formed between a clamping edge of the clamping spring and the busbar section for clamping an electrical conductor on the shoulder.

With the help of such a paragraph, followed by an overlying free space, a stable support for an actuating tab of the clamping spring is provided so that the spring actuating force is optimally transmitted through the paragraph on the clamping plate of the clamping spring. By projecting in the direction of the center of the operating section paragraph overlying free space is provided so that the clamping spring otherwise can lift freely even without lever operation of the paragraph to exert a spring clamping force on the electrical conductor unaffected by the lever arm.

The side wall portions of an actuating element are preferably connected to each other with a transverse web formed in such a way that the transverse web extends in the swung-up state of the actuating element, in which the clamping point is open, from the free end of the side wall sections to the insulating material housing. Thus, taking advantage of the available space optimal stability of the lever arm, in particular with regard to the torsional strength and buckling reached.

The transverse web preferably projects beyond the free end of the side wall sections which lies opposite the pivot bearing region. This provides an approach to gripping the crosspiece and applying a lever pivoting force. By the projecting end of the crosspiece, the lever arm can be better grasped by hand or with a screwdriver to open under attack.

The conductor terminal is preferred as a cross connection terminal, such. B. as a terminal box, by two or more spring terminal connections are received side by side in the insulating housing, wherein the spring terminal connections have a common busbar. A connected to a spring terminal connection electrical conductor is thus electrically connected to other electrical conductors, which are connected to the other Federkraftklemmanschlüssen.

Such a terminal box is extremely compact and can be advantageously integrated into junction boxes of electrical installations. With the help of the operating lever, easy clamping and removal of electrical conductors is possible for a large range of conductor cross sections. Such a conductor terminal can thus be used not only for power distribution installations, but also for communication technology installations.

A very stable mounting of the actuating elements in the insulating housing can be achieved if the pivot bearing areas are mounted on a portion of a busbar of the associated spring terminal connection. The usually very stable, massive busbar forms a support for the actuator, so that the busbar with the associated clamping spring and the actuator are essentially self-supporting in terms of force and torque effect, without greater forces and moments acting upon actuation of the spring terminal connection by pivoting the actuating element on the insulating material.

Furthermore, it is advantageous if the outer contours of the actuating sections lie in the space between the plane spanned by a busbar of the associated spring terminal connection and a plane spanned by a contact leg of the associated spring terminal connection. This allows a very compact design with optimum force of the actuator on the spring terminal connection.

Figur 1

- perspektivische Ansicht einer ersten Ausführungs-form einer Leiteranschlussklemme;

Figur 2

- Querschnittsansicht durch die Leiteranschluss-klemme aus Figur 1;

Figur 3

- Seiten-Schnittansicht durch die Leiteranschluss-klemme aus Figur 1 mit geöffnetem Betätigungs-element;

Figur 4

- Seiten-Schnittansicht durch die Leiteranschluss-klemme aus Figur 1 mit geschlossenem Betäti-gungselement;

Figur 5

- perspektivische Ansicht eines Klemmengehäuseteils des Isolierstoffgehäuses der Leiteranschlussklemme aus Figuren 1 bis 4;

Figur 6

- Rückseitenansicht auf das Klemmengehäuseteil aus Figur 5;

Figur 7

- perspektivische Ansicht eines Betätigungselementes der Leiteranschlussklemme aus Figuren 1 bis 4;

Figur 8

- Seiten-Schnittansicht durch das Betätigungselement aus Figur 7;

Figur 9

- Längsschnittansicht durch die Leiteranschlussklemme aus Figur 1;

Figur 10

- Längsschnittansicht durch die Leiteranschlussklemme aus Figur 1 mit eingestecktem elektrischen Leiter;

Figur 11

- Seiten-Schnittansicht durch eine zweite Ausführungsform einer Leiteranschlussklemme mit geöffnetem Betätigungselement;

Figur 12

- Seiten-Schnittansicht durch die Leiteranschlussklemme aus Figur 11 mit geschlossenem Betätigungselement.

The invention will be explained in more detail with reference to embodiments with the accompanying drawings. Show it:

FIG. 1

- Perspective view of a first embodiment of a conductor terminal;

FIG. 2

- Cross-sectional view through the conductor connection terminal FIG. 1 ;

FIG. 3

- Side sectional view through the conductor connection terminal FIG. 1 with open actuating element;

FIG. 4

- Side sectional view through the conductor connection terminal FIG. 1 with closed Actuate supply element;

FIG. 5

- Perspective view of a terminal housing part of the insulating material of the conductor terminal from FIGS. 1 to 4 ;

FIG. 6

- Rear view on the terminal housing part FIG. 5 ;

FIG. 7

- Perspective view of an actuating element of the conductor connection terminal FIGS. 1 to 4 ;

FIG. 8

- Side sectional view through the actuator from FIG. 7 ;

FIG. 9

- Longitudinal view through the conductor connection terminal FIG. 1 ;

FIG. 10

- Longitudinal view through the conductor connection terminal FIG. 1 with inserted electrical conductor;

FIG. 11

- Side sectional view through a second embodiment of a conductor terminal with an open actuator;

FIG. 12

- Side sectional view through the conductor connection terminal FIG. 11 with closed actuator.

In the figures, like reference numerals are used for corresponding elements.

FIG. 1 lets a perspective view of a first embodiment Detect a conductor terminal 1. The conductor connection terminal has an insulating housing 2 with front introduced into the insulating material and juxtaposed conductor insertion openings 3. About the conductor insertion openings 3 each arranged in the insulating housing 2 and a conductor insertion opening 3 associated spring terminal connection (not visible) is accessible. When inserting an electrical conductor into a conductor insertion opening 3, this can be electrically conductively and mechanically firmly clamped to the associated spring terminal connection.

Above a respective conductor insertion opening, an actuating element 4 is arranged. The actuating elements 4 are each mounted pivotably about an axis of rotation in the insulating housing 2. You have a cross bar 5 at the free end, which is as shown in the closed position within the space formed by the insulating material 2 volume space. The transverse webs 5 of the actuating elements 4 preferably terminate flush with the plane defined by the upper peripheral edge 6 of the insulating housing 2.

It is clear that the transverse webs 5 at a free end have a protruding bead 7, which facilitates the gripping of the actuating element 4 by hand or a screwdriver to apply a lever pivoting force in the direction from bottom to top on the actuating element 4 and to pivot this ,

The transverse web 5 of an actuating element 4 connects two side wall sections 8a, 8b spaced apart from one another to form a basically U-shaped actuating lever. The adjacent to the cross bar 5 space 40 between two side wall portions 8a, 8b is filled in the closed position by a raised portion 9 of the insulating housing 2. The space 40 is thus used to hold Isolierstoffmaterial to in this way a compact To achieve construction of the conductor terminal 1.

It can also be seen that a test opening 10 which is open at the front side is provided above the middle conductor insertion opening. Thus, a test tool, such as a measuring pin or a screwdriver with test light for measuring the voltage potential at the underlying spring terminal connection can be inserted into the test opening 10.

FIG. 2 leaves a cross-sectional view through the conductor terminal 1 FIG. 1 recognize. It is clear that the actuating elements 4 in cross-section U-shaped by the spaced-apart side wall portions 8a, 8b and the transverse web 5 connecting them. It will be appreciated that the sidewall portions 8a, 8b dive in a respective gap Z between the raised portion 9 of the insulating housing and either an adjacent raised portion or for the edge portions with the sidewall of the insulating housing 2 in the closed position. This leads to an optimized side guide of the actuating elements 4, which are thus not only stored on the visible pivot bearing. In the illustrated embodiment, two sidewall portions 8a, 8b of adjacent actuators 4 abut each other and dip in a common space Z, so that the sidewall portions 8a, 8b of the adjacent actuators 4 mutually guide each other. By dispensing with a further intermediate wall between two adjacent side wall sections 8a, 8b space is saved in the width direction.

FIG. 3 leaves a side sectional view through the conductor terminal 1 FIG. 1 Detect with open actuator 4.

It can be seen that a spring-force clamping connection 11 is installed together with an associated actuating element 4 in the insulating material 2 is. The insulating housing 2 is designed in two parts and has a terminal housing part 12 and a cover part 13. After inserting the actuating element 4 and the spring terminal connection 11 in the terminal housing part 2, this is closed with the cover part 13. In this case, a pivot bearing portion 14 is guided, inter alia, with a part-circular outer periphery of part-circular bearing recesses 15 of the insulating housing 2 to rotatably support the pivot bearing portion 14 about a rotation axis D. The axis of rotation D is a virtual axis of rotation, which is defined by the part-circular pivot bearing portion 14 and its pivot bearing in Isolierstoffgehäuse 2.

It can be seen that the pivot bearing region 14 has an actuating section 16 for acting on a lateral section of the clamping spring 17 of the spring clamp connection 11. The clamping spring 17 is formed from a plant leg 18, an adjoining spring bow 19 and a subsequent clamping leg 20. The clamping leg 20 has at its free end a clamping edge 21, which forms a clamping point for clamping an electrical conductor together with a busbar 22 of the spring terminal connection 11.

It is clear that in the illustrated position pivoted in the open position of the actuating element 4 of the clamping leg 20 is displaced away from the underlying busbar 22 to open the terminal formed by the clamping edge 21 of the clamping spring 17 and the busbar 22 nip. For this purpose, the actuating portion 16 exerts a spring actuating force FF, which is seen in Leitereinsteckrichtung L before the axis of rotation D and is directed by the busbar 22 upwards towards the free end of the actuating element in the open position. In the illustrated embodiment, the bus bar 22 is provided with an integrally formed therewith frame portion 23, which is directed from the plane of the bus bar 22 upwardly in the extension direction of the plugged actuating element 4 and the plant leg 17 is. In the frame part 23, a conductor lead-through opening is formed by two spaced apart side webs and a holding web 24 connecting the side webs at the free end. The plant leg 18 engages under the holding web 24 and is defined by a slight curvature in the retaining web 24. In this way, a self-supporting spring terminal connection 11 is provided, in which the clamping spring 17 is arranged on the busbar 22 and a force acting on the clamping leg 20 is returned to the power rail 22 via the plant leg 17. When clamping an electrical conductor of the clamping leg 20 exerts a force on the busbar 22, which counteracts the holding force of the abutment leg 18 on the holding web 24, so that the two forces are largely compensated.

It is clear that the pivot bearing portion 14 is superimposed opposite to the clamping leg 20 on the busbar 22, out with a teilkreisförmigem outer periphery of the bearing wells 15 of the insulating 2 and additionally stored in the rear region opposite to the bearing troughs 15 on the side webs of the frame part 23. This ensures that the actuating forces exerted by the pivoting lever are supported on the insulating material housing in a self-supporting manner without exerting significant deformation forces.

FIG. 4 lets a side sectional view of the conductor terminal 1 of the FIGS. 1 to 3 recognize. In this case, the actuating element 4 is in the closed position in which the actuating element 4 is pivoted with its transverse web 5 in the direction of the insulating material housing 2 and a clamping point formed by the spring force clamping connection 11 for clamping an electrical conductor is closed. In this case, the clamping edge 21 of the clamping leg 20 rests without electrical conductor preferably under spring force of the clamping spring 17 on the busbar 22nd

In order to open the nip now has a lever operating force FH are exerted on the lever arm formed by the side webs 8a and the cross bar 5. This actuating force FH is directed in the representation of the plane of the busbar 22 in the direction of overlying clamping spring 17 upwards. When caused thereby pivoting of the actuating element 4 in the representation in the clockwise direction, a spring actuating force FF is exerted by the actuating portion 16 on the clamping leg 20. This spring actuating force FF is also directed upward, ie, by the busbar 22 in the direction of extension of the actuating element 4 in the open position (see FIG. 3). To what extent the spring actuation force FF and the lever pivoting force FH thereby runs in a certain same or different angle is irrelevant.

It can be seen that from the closed position according to FIG. 4 in the transition to the open position according to FIG. 3 the lever pivoting force FH and spring actuating force FF not only both rectified, ie directed upward regardless of their concrete angle, but also in Leitereinsteckrichtung L seen in relative to the axis of rotation D on the same page. The actuating element 4 therefore does not form a lever arm in which a spring actuation force FF is exerted on the other, opposite side of the axis of rotation D by a lever pivoting force on one side of the axis of rotation. Rather, lever pivot force FH and spring actuation force FF act relative to the axis of rotation D on the same side.

From the FIG. 4 Furthermore, it is clear that the spring-force clamping connection 11 is partially immersed in the space bounded laterally by the side wall sections 8a, 8b and the transverse web 5, so that the overall height of the conductor connection terminal 1 is relatively low despite the actuating element 4. It is also clear that a section 9 of the insulating material housing 2 situated above the spring-force clamping connection 11 dips into a free space 40 of the actuating element 4 adjoining the transverse web 5. This space 40 is thus also for receiving parts of the insulating material used to allow a compact design.

In the closed position of the actuating element 4, this is latched by a projecting from the cross bar 5 locking lug 42 on an associated latching contour 43 of the insulating housing 2. In the closed position, the actuating element 4 is not subjected to force by the clamping spring 17 and thereby stabilized in position. An uncontrolled wobbling movement of the actuating element 4 is thus prevented by the latching.

FIG. 5 shows a perspective view of the terminal housing part 12 of the insulating housing 2 of the conductor terminal 1 described above. In the side walls 25 of the insulating housing 2 dovetail-like recesses 26 are introduced, dipping into the dovetail-like projections adapted thereto an associated cover member 13 to prevent expansion of the insulating housing 2 under load. The latching of terminal housing part 12 and cover part 13 via not shown locking elements.

It is also clear that in the interior of the terminal housing part 12 guide webs 27 and bearing troughs 15 are introduced with part-circular curved end faces 28. With the aid of these part-circular curved end faces 28, each with a bearing recess 15, a pivot bearing of an associated pivot bearing portion 14 is provided to an actuating element 4. The guide webs 27 dive into a guide slot 30 (see FIG. 7 ) provided between the inner wall of a side wall portion 8a, 8b and an operation portion 16 spaced therefrom. The guide webs 27 additionally serve to stabilize the terminal housing part 12.

FIG. 6 leaves a rear view of the terminal housing part 12 from FIG. 5 recognize. It is clear here that the frontal central inspection opening 10 not only as on FIG. 1 recognizable at the front, but also open to the interior. In this way, a spring force clamp connection 11 built into the interior of the clamp housing part 12 becomes accessible to a test tool in order to check whether electrical voltage potential is present at the relevant spring clamp connection 11.

Out FIG. 6 It is also clear that in the space between adjacent guide webs 27 adjacent attachment spaces for Federkraftklemmanschlüsse 11 each have a gap Z is present, in which the side wall portions 8a, 8b of the built-in actuators 4 dive.

FIG. 7 lets recognize a perspective view of an actuator 3 in the form of an actuating lever from the bottom. From this, the in principle U-shaped configuration with two spaced-apart side wall sections 8a, 8b recognizable, which are connected at their free end to one another via a side edge with a transverse web 5. It will be appreciated that the side wall portions 8a, 8b taper from the pivot bearing portions 14 to the free end. It can be seen that at the free end of the crosspiece 5 an actuating bead 7 is present. It is also clear that the cross bar 5 protrudes with the actuating bead 7 forward over the free ends of the side wall portions 8a, 8b, wherein the inner sides of the transverse web 5 is inclined at the free end edge. This counteracts slippage upon application of a lever actuating force of the actuating element 4.

It can be seen further that the pivot bearing areas 14 have part-circular curved outer end faces 29, with which the actuating element 4 is mounted pivotably about a virtual axis of rotation D in Isolierstoffgehäuse.

The axis of rotation D extends through the center of a formed by the outer end face 29 pitch circle.

It can also be seen that part-circular sections 31 spaced apart from the side wall sections 8a, 8b in the pivot bearing area 14 with a guide slot 30 are arranged with a V-shaped notch 32. In the area of the V-shaped cuts 32, an actuating portion 16 is formed in each case, which serves to act on an associated clamping leg 20 of a clamping spring 17 with a spring actuating force. It can be seen that the actuating portions 16, as well as the transverse web 5, on which a lever pivoting force FH is exerted, lie on the same side relative to the axis of rotation D. As a result, the spring actuation forces FF exerted on the actuation sections 16 act on the same side relative to the axis of rotation D as the lever pivot force FH applied to pivoting on the crossbar 5.

It is also clear that of the cross bar 5 on the side opposite to the actuating bead 7, a locking lug 42 projects approximately in the direction of the pivot bearing portion 14 and the portion 31. The latching lug 42 serves to latch the actuating element 4 in the closed position with the insulating material 2.

FIG. 8 leaves a side sectional view of the actuator 4 from FIG. 7 recognize. Here it is once again clear that the side wall sections 8a, 8b are connected by a transverse web 5 connecting them to the upper side of the actuating element 4. The crosspiece 5 extends only over a partial region of the length of the side wall sections 8a, 8b and preferably occupies more than half the length of the side wall sections 8a, 8b.

FIG. 9 shows a longitudinal sectional view through a conductor terminal 1 in plan view, it is clear that the one another spaced side wall portions 8a, 8b of the respective operating lever 4 in intermediate spaces Z of the insulating housing 2 and immerse there by wall sections of the insulating 2 and optionally by adjacent side wall portions 8a, 8b adjacent actuators 4 are performed. It is clear that in the guide slot 30 between a side wall portion 8a, 8b and an adjacent portion 31 with the operating portion 16, a guide web 27 of the insulating housing 2 is immersed. This creates a pivot bearing guide for the actuating element 4, which also gives it lateral hold before tilting or twisting.

It can also be seen that the sections 31 with the actuating sections 16 overlap the clamping spring 17 in the width direction and cooperate with edge regions of the associated clamping spring 17 or its clamping leg 20 in order to exert a spring actuating force FF on the clamping leg 20. At the outer edges of the clamping spring 17 and the actuating portions 16 is then followed in each case by a guide web 27, which dips into the guide slot 30 of the actuating element 4. Adjacent thereto is then the intermediate space Z for receiving a part of a side wall portion 8a, 8b of the actuating element 4 is provided. The operating portions 16 are integrally connected to the side wall portions 8a, 8b via the portion 31.

FIG. 10 lets a longitudinal sectional view through the conductor terminal 1 of the FIGS. 1 and 9 recognize approximately at the height of the axis of an inserted electrical conductor 33. The electrical conductor 33 has a stripped free end 34, which is electrically connected by means of the clamping spring 17 at a terminal point with the electrically conductive busbar 22 below. In this case, the busbar 22 extends transversely to the connection direction, that is to say over the illustrated three juxtaposed spring-force terminal connections 11, so as to enable a transverse distribution of the electrical potential at the electrical conductor 33.

From this sectional view it becomes clear that laterally adjoining the connection space for the electrical conductor 33 are pivot bearing regions 14, which have sections 31 with actuating sections 16. The operating portions 16 of adjacent pivot bearing portions 14 for the same spring terminal connection and the same conductor insertion opening 3 are spaced less than the side wall portions 8a, 8b, where the actuating portions 16 are integrally formed. A guide slot 30 is located between the actuating sections 16 and the side wall sections 8a, 8b. The pivot bearing sections 14 and / or the actuating sections 16 guide the electrical conductor 33 or its stripped end to the clamping point.

It is also clear that the projecting from the busbar 22 frame parts 23 each have two spaced-apart edge webs 35, the intermediate space serves as a conductor passage opening for performing the stripped end 34 of an electrical conductor 33.

It can also be seen that the spring force clamping connections 11 are fixed in the clamping housing part 12 by the cover part 13 in that webs 36 of the cover part abut the edge webs 35 of the frame parts 23 and thus fix them in position. The terminal housing part 12 has wall portions 37 made of insulating material with part-circular end faces, which abut the part-circular curved portions 31 of the pivot bearing portions 14 with the actuating portions 16 and form a part-circular bearing recess for this.

It is advantageous if the Isolierstoffgehäuse 2 or at least parts or portions thereof is formed of transparent plastic material, in order to be able to recognize in this way from the outside, whether the stripped free end 34 de of an electrical conductor 33 is inserted correctly.

FIG. 11 lets a side sectional view of a second embodiment of a conductor terminal 1 with open actuator 4 in the open position recognize. Again, the insulating 2 is made in two parts of a terminal housing part 12 and a guided into this and locked with the clamping housing part 12 lid part 13 in two parts. In this embodiment, the pivot bearing region 14 has a first at least part-circular bearing portion 37, to which the section 31 is connected with the actuating portion 16 in the direction of the conductor connection space. It is clear that this section 31 with the actuating portion 16 has a larger diameter than the part-circular bearing portion 37. As a result, the section 31 projects radially with respect to the pivot bearing section 37 with the actuating section 16. The actuating element 4 can then be mounted on the pivot bearing region 37 by means of correspondingly adapted part-circular bearing cavities of the insulating housing 2 and possibly also on the larger part-circular section 31 through the insulating housing. As a result, the pivot bearing and tilting safety at reduced load of the insulating material is also improved in conjunction with the supernatant, to the side of a Isolierstoffgehäusewand adjacent to the leadership.

Also in this embodiment, the spring action force FF of the operating portion 16 acts on protruding from the clamping spring actuating tab 38 on the same side of the axis of rotation D and in the same direction as one for pivoting the actuating element 4 from the closed position according to FIG. 12 in the illustrated open position of FIG. 11 to be applied to the free end of the actuating element 4 lever pivoting force FH.

Both forces, ie the lever pivoting force FH and the spring actuating force FF are in the same direction upwards, ie away from the busbar 22 in the extension direction of the actuating element 4 directed in the open position regardless of the exact angular position.

The conductor connection terminal 1 can have a test opening 39 in the insulating housing 2 accessible in the rear region from above.

Claims (11)

1. A conductor terminal (1) having an insulating material housing (2) and having at least one spring-loaded clamping connection (11) in the insulating material housing (2) and also having at least one actuation element (4), which is pivotably accommodated in the insulating material housing (2) and is designed to open in each case at least one associated spring-loaded clamping connection (11), wherein the actuation element (4) has two side wall portions (8a, 8b) which are spaced from one another and at least partially enter the insulating material housing (2) with a pivot bearing region (14) and, opposite said pivot bearing region (14), are connected to each other by a transverse web (5) to form a lever arm, wherein the pivot bearing regions (14) of the mutually distanced side wall portions (8a, 8b) of the actuation element (4) form an axis of rotation (D), about which the actuation element (4) is pivotably mounted in the insulating material housing (2), and wherein an associated spring-loaded clamping connection (11) is at least partially accommodated in the space between the pivot bearing regions (14) of the actuation element (4), and wherein the pivot bearing regions (14) have actuation portions (16), which in each case are designed in order to act on an associated clamping spring (17) of a spring-loaded clamping connection (11) as the actuation element (4) pivots from a closed position, in which the actuation element (4) is pivoted with its transverse web (5) in the direction of the insulating material housing (2) and a clamping point formed by the spring-loaded clamping connection (11) for clamping an electrical conductor is closed, into an open position, in which the actuation element (4) with its transverse web (5) is pivoted away from the insulating material housing (2) and a clamping point formed by the spring-loaded clamping connection (11) for clamping an electrical conductor is open, characterized in that the actuation portions (4) are arranged on the pivot bearing regions (14) of the side wall portions (8a, 8b) at a distance from one another that is shorter than the distance between the side wall portions (8a, 8b), wherein the actuation portions (16) extend parallel to the side wall portions (8a, 8b) and are formed integrally with the side wall portions (8a, 8b), such that in each case a guide slot (30) is provided between an actuation portion (16) and the associated, directly adjacent side wall portion (8a, 8b), and that a guide web (27) of the insulating material housing (2) in each case enters an associated guide slot (30) for guiding the actuation element (4) in the event of a pivot motion about the axis of rotation (D) in the pivot bearing region (14).
2. The conductor terminal (1) as claimed in claim 1, characterized in that the actuation element (4) is coordinated with the insulating material housing (2) and the associated spring-loaded clamping connection (11) in such a way that the lever pivot force (F_H) acting on the transverse web (5) in order to pivot the actuation element (4) from the closed position into the open position and the spring actuation force (F_F) acting on the clamping spring (17) by the actuation portions (16) when pivoting the actuation element (4) from the closed position into the open position act on the same side relative to the axis of rotation (D).
3. The conductor terminal (1) as claimed in claim 1 or 2, characterized in that the adjacent side wall portions (8a, 8b) of two actuation elements (4) arranged adjacently in the insulating material housing (2) border one another directly.
4. The conductor terminal (1) as claimed in one of claims 1 to 3, characterized in that the insulating material housing (2) has a terminal housing part (12) and a separate cover part (12), wherein the terminal housing part (12) and the cover part (13) are connected to one another in the assembled state by means of the at least one spring-loaded clamping connection (11), inserted into the terminal housing part (12), and associated actuation element (4), and in that the pivot bearing region (14) is accommodated in a space formed between the terminal housing part (12) and cover part (13).
5. The conductor terminal (1) as claimed in claim 4, characterized in that the terminal housing part (12) and/or the cover part (13) has/have part-circle bearing cavities (15) for pivotably mounting the actuation element (4) in the insulating material housing (2), wherein a part-circle outer periphery of the pivot-bearing region (14) matched accordingly with the part-circle bearing cavity (15) enters an associated bearing cavity (15).
6. The conductor terminal (1) as claimed in one of the preceding claims, characterized in that the actuation portions (16) have a part-circle outer periphery with a cutout (32) for forming a step protruding in the direction of the center of the actuation portion (16), wherein the at least one spring-loaded clamping connection (11) in each case has a bus bar (2) and a clamping spring (17) with an actuation tab, and the actuation tab of the clamping spring (17) rests on the step as the actuation element (4) is pivoted in order to open a clamping point formed between a clamping edge (21) of the clamping spring (17) and the bus bar (22) for clamping an electrical conductor.
7. The conductor terminal (1) as claimed in one of the preceding claims, characterized in that the side wall portions (8a, 8b) of an actuation element (4) are connected to one another by means of a transverse web (5), which, in the state in which the actuation element (4) is pivoted up, in which state the clamping point is open, extends from the free end of the side wall portions (8a, 8b) to the insulating material housing (2).
8. The conductor terminal (1) as claimed in one of the preceding claims, characterized in that the transverse web (5) protrudes beyond the free end of the side wall portions (8a, 8b) opposite the pivot bearing region (14).
9. The conductor terminal (1) as claimed in one of the preceding claims, characterized in that two or more spring-loaded clamping connections (11) are accommodated adjacently in the insulating material housing (2), and in that the spring-loaded clamping connections (11) have a common bus bar (22).
10. The conductor terminal (1) as claimed in one of the preceding claims, characterized in that the pivot bearing regions (14) are mounted on a portion of a bus bar (22) of the associated spring-loaded clamping connection (11).
11. The conductor terminal (1) as claimed in one of the preceding claims, characterized in that the outer contours of the actuation portions (16) lie in the space between the plane spanned by a bus bar (22) of the associated spring-loaded clamping connection (11) and a plane spanned by a contact limb (18) of the associated spring-loaded clamping connection (11).

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