WO2016128219A1

WO2016128219A1 - Conductor connection clamp

Info

Publication number: WO2016128219A1
Application number: PCT/EP2016/051738
Authority: WO
Inventors: Schrader ANDREAS
Original assignee: Phoenix Contact Gmbh & Co. Kg
Priority date: 2015-02-10
Filing date: 2016-01-28
Publication date: 2016-08-18
Also published as: CN207938828U; DE102015101893A1; DE102015101893B4

Abstract

The present invention discloses a conductor connection clamp (1) which is characterized by the following features: a clamping spring (400) which is pivotable between a release position and a clamping position has a pressure limb (401) and a clamping limb (403) which is connected to the latter via a bending joint (404); a slide element (200) has a pusher (202) and a driver (203), wherein the pressure limb (401) is arranged between the pusher (202) and the driver (203); displacement of the slide element (200) into its closed position causes the pusher (202) to subject the pressure limb (401) to the action of force in such a manner that the clamping spring (400) is pivoted into its clamping position, and therefore a conductor which is introduced into the housing (100) via an introduction opening (123) is forced by means of the clamping limb (403) onto the connecting device (300); displacement of the slide element (200) into its open position causes the driver (203) to subject the pressure limb (401) to the action of force in such a manner that the clamping spring (400) is pivoted into its release position.

Description

Conductor terminal

The present invention relates to a conductor terminal.

Lead terminals are known from the prior art, by means of which, for example, two electrical conductors are connected to each other. Thus, DE 101 03 187 B4 discloses a conductor terminal comprising a housing in which a respective number of poles corresponding number of slide elements, constructed as a current shift ^¬ NEN coupling devices and spring clamps are provided. The housing comprises a plurality of mutually opposite insertion openings into which conductors to be electrically connected to each other can be inserted. The Klemmfe ^¬ countries each have a clamping leg with a front tension member and a plant leg. The contact leg rests on the housing-internal busbar, and the tensioning part of the clamping spring has in a known manner a window recess which engages over a free end of the busbar and an electrical conductor inserted into the insertion opening with the lower edge of the window recess against the underside of the busbar draws. In the clamping position of the clamping spring this is tension-free and is located in the open position located on the slider element, whereas in the open position of the clamping spring from which in the

Closing position located slider element is stretched so that a conductor can be inserted through the window recess. The slider is supported in its

Closed position on a clamping edge of the housing, so that the slider is not moved by means of the clamping spring in its open position. The correspondingly constructed conductor connection terminal has a complex geometry. In particular, the clamping spring must have a complex geometry with a large number of bends and a recess to ensure its functionality. Furthermore, a conductor can only be introduced into the conductor connection terminal and can be clamped by the clamping spring when the clamping spring is in its release position, which corresponds to the open position of the slide element.

The present the object underlying the invention is to provide an improved wire connection terminal which has a simpler structure and a simpler and Flexib ^¬ sized handleability.

This object is achieved by a conductor terminal with the features of claim 1 of the present invention. Advantageous embodiments are described in the dependent of claim 1 claims.

More specifically, the object underlying the present invention is achieved by a conductor connection terminal, which is a housing, a slide element which is displaceable with respect to the Ge ^¬ housing between an open position and a closed position, an electrically conductive connection means via an insertion of the housing is accessible, and a clamping spring, by means of a introduced via the insertion opening into the housing ladder is kraftbeaufschlagbar on the connecting device comprises. The conductor terminal is characterized in that the pivotable between a release position and a clamping position clamping spring has a pressure leg and connected thereto via a bending joint clamping leg. The slider element has a pusher and a Driver on, wherein the pressure leg of the clamping spring between the pusher and the driver is arranged. By moving the slider element in its closed position, the pusher force the pressure leg such that the clamping spring is pivoted in its clamping position, so that an inserted through the insertion into the housing conductor is subjected to force by means of the clamping leg on the Verbindungsein ^¬ direction. By moving the

Slide element in the open position of the driver force the pressure leg such that the clamping spring is pivoted in its release position.

The conductor terminal according to the invention and in particular the clamping spring have a simple structure. Therefore, the assembly of the conductor terminal is simplified made ^¬ light. Despite the simple construction of the conductor connection terminal, a forced coupling between the position of the slide element and the clamping spring is still ensured. A movement of the slider element is therefore with a

Movement, in more detail with a pivoting, the clamping spring positively coupled, in particular, the transfer of the clamping spring must be made in the release position by means of the slider element. By transferring the Schieberele- ment in its closed position, the clamping spring is ver ^¬ pivots by entrainment of the pressure leg in the clamping position, and by transferring the slide element in ^¬ sen open position, the clamping spring is pivoted by entrainment of the pressure leg in its release position.

In other words, the clamping spring by means of the slide ^¬ berelements between the release position and the clamping position, is actively pivotable. The clamping spring is therefore always kraftbeauf ^¬ strikes at a displacement of the slider element or always taken away from the slider element. The conductor connection terminal is used in particular for connecting two electrical conductors together. Both the housing and the slide element are formed from egg ^¬ nem electrically insulating material or comprise an electrically insulating material at the points where they come into contact with the electrical conductors or with the clamping spring. The electrically insulating material is in particular a plastic.

The clamping spring, which may be ausgebil ^¬ det in particular as a leg spring, preferably consists of a spring steel or comprises this at least in the region of the bending joint. Furthermore, the clamping spring is pivotable about a pivot axis which is defined by the housing and / or the connecting device and / or the geometry of the clamping spring.

The housing accommodates one of the number of poles corresponding number of slide elements, connecting devices and clamping springs.

The pusher can also be referred to as the first driver, as the first pressure element or as the first pressure edge. The driver can also be referred to as a second driver, as a second pressure edge, as a return edge, as a return pin or as a return ^¬ nose. The slide element can also be referred to as a slide. The connecting device can also be referred to as a busbar.

Preferably, the clamping spring is at least partially elastic and an angle enclosed by the pressure leg and clamping ^{leg ¬} angle is variable, so that when located in clamping position clamping spring a conductor over the Insertion opening inserted into the housing and can be positioned under elastic deformation of the clamping spring between the clamping legs and the connecting device. The enclosed by the pressure leg and clamping leg Win ^¬ angle is thus changed by inserting a conductor into the insertion, in particular reduced. Example ^¬ as may be formed, the flexural joint of the clamping spring elastic. However, the entire clamping spring can also be designed to be elastic, in particular if the clamping spring is formed from a spring steel.

An appropriately designed conductor terminal has the advantage that, despite located in the closed position slider element and thus located in clamping position clamping spring a conductor can still be introduced via the insertion in the housing and connected to the connection device in connection, being further ensured that the head by means of Clamping force is applied to the connecting device and thus clamped. The handling of the appropriately designed Lei ^¬ teranschlussklemme is therefore considerably improved because the slide element does not necessarily have to be moved into its release position for bringing an electrical conductor in contact with the conductor terminal.

Further preferably, the connecting device has a clamping plate with which a conductor introduced into the housing via the insertion opening can be brought into contact, wherein in the clamping position of the clamping spring its clamping leg and the clamping plate enclose an opening to the opening angle of less than or equal to 90 °. By appropriate design of the conductor terminal, and in particular of the clamping spring a further simplified ^¬ fachtes insertion of a conductor is provided in spite of is in the closed Stel ^¬ lung sliding element. Furthermore, it is ensured by a corresponding angular position of the clamping leg towards the inserted conductor in the connecting device, that the clamping leg of the clamping spring an unwanted extraction of the conductor improves counteracts, since the edge of the clamping leg of the clamping spring digs when pulling out the conductor from the housing in the head ,

Preferably, the pressure leg of the clamping spring on a pusher of the slider element facing latching recess, in which the pusher is received in the closed position of the slide element.

By an appropriate design of the conductor terminal, in particular the clamping spring and the slider element, a displacement of the slider element of the latter

Closed position in the direction of its open position by means of the tensioned clamping spring reliably avoided because only forces are exerted on the slider element via the clamping spring, which have no parallel component to the direction of displacement of the sliding element. The slider thus remains reliably in its closed position. Furthermore, in the case of a correspondingly designed conductor connection terminal, the pusher is designed as a pressure projection. The pressure leg of the clamping spring is thus subjected to force when transferring the clamping spring of the release position in the clamping position only of the pressure projection.

Further preferably, the slider element has a guide ^groove and the connecting ^device has a guide ^leg on, wherein the guide leg is taken ver ^¬ pushed in the guide. The guide groove extends parallel to the displacement direction of the slider element from the open position to the closed position.

The slider element is consequently displaceable relative to the connection ^device . Clamping forces exerted on the slide element by the clamping spring thus remain in the connecting device since the clamping forces are transmitted from the clamping spring to the guide leg by means of the slide element, in particular by means of the pusher and the guide groove of the slide element. Therefore, in

Closed position of the slider element and thus korrespondie ^¬ render clamping position of the clamping spring no deformation of the housing by the tensioned clamping spring.

Furthermore, due to the guidance of the sliding element by means of the guide groove and by means of the guide leg caused by the clamping spring displacement of the slide element regardless of the position of the slide element between the open position and the closed position and thus independent of the application of force by means of the clamping spring, inhibited or counteracted, so the slider element remains in just this position. The force exerted by the clamping spring on the slide element has two power Rich ^¬ processing vectors. A first force direction vector is oriented perpendicular to the extension direction of the guide direction, and a second force direction vector is oriented parallel to the extension direction of the guide groove. Therefore, the slider member is slightly tilted with respect to the guide leg, so that self-locking is achieved.

Preferably, the housing has a bearing shell in which the bending joint of the clamping spring is received pivotably is. By a corresponding design of the conductor terminal, the positioning and the rotation or tilting of the clamping spring is always defined. The radius of curvature of the bearing shell preferably corresponds to at least partially about the outer curvature of the Bie ^¬ gege Lenk of the clamping spring.

Further preferably, the connecting device has a holding element, wherein the bending joint of the clamping spring between the bearing shell of the housing and the holding element of the connecting device is arranged. As a result, a correct positioning of the clamping spring is secured in the conductor connection terminal, since the clamping spring can not be moved in the displacement ^¬ direction of the slide element.

Further advantages, details and features of the invention will become apparent from the following Ausführungsbei ^¬ game. In detail: FIG. 1 shows a perspective ^{view of} a conductor connection ^terminal according to the invention;

FIG. 2 shows an exploded view of the conductor connection terminal shown in FIG. 1;

FIG. 3 shows an illustration of a cross section of the conductor connection terminal shown in FIG. 1, the slider element being in its open position;

FIG. 4 shows the conductor connection terminal shown in FIG. 3 with a slide element located in the closed position; Figure 5 is a perspective view of the built-in Lei ^¬ teranschlussklemme connecting device, the clamping spring and the slide member; and FIG. 6 shows the components shown in FIG

Connecting device and viewed from an opposite side, so that the positioning ^¬ ning of the pressure leg of the clamping spring between the pusher and the driver of the slider element is clearer.

In the following description, like reference numerals designate like components or like features, so that a description made with respect to one figure with respect to one component also applies to the other figures, so that a repetitive description is avoided. Furthermore, individual features described in connection with one embodiment may also be used separately in other embodiments.

FIG. 1 shows a conductor connection terminal 1 according to the invention which has a housing 100 which comprises a first part 110 and a second part 120. As can be seen in particular from FIG. 2, the first part 110 and the second part 120 of the housing 100 can be connected to one another via a latching connection. For this purpose, on the first part 110 of Ge ^¬ häuses 100 holding tongues 112 which can eingrei ^¬ fen in arranged in the second part 120 of the housing 100 retaining recesses 122, so that the retaining recesses are engaged behind by holding tongues 112 122nd

The housing 100 has in the illustrated Ausführungsbei ^¬ game each have three first insertion 123 and second insertion 113, so by means of the corresponding trained conductor terminal 1 each three pairs of electrical conductors are connected to each other. However, the conductor connection terminal 1 can have any number of ers ^¬ th insertion opening 123 and second insertion openings 113 in order to electrically connect a corresponding number of electrical conductor pairs with each other.

In the figures not shown electrical conductors at ^¬ play as electric cables, are inserted into the first Einführöffnun- gen. In the second insertion openings conductive contact tongues can be inserted, which are mounted in a baseboard housing and, for example soldered on a ^{Leiterplat ¬} te. The connecting device 300 can also be referred to as a busbar 300.

As can be seen in particular from FIGS. 3 and 4, a current conductor in the form of a contact tongue can be introduced into the second insertion opening 113 and can be clamped by a contact tulip 301 of the connection device 300. For this purpose, the connecting device 300 comprises two mutually running elastic ladder limbs, which form the contact tulip 301. By means of a corresponding structure, a reliable electrical connection is ensured by a contact tongue inserted into the second insertion opening 113 with the connection device 300. The connection conductor can be inserted into the conductor connection terminal 1 via the first insertion opening 123 and can be electrically connected to the connection device 300 in that a clamping spring 400 applies force to the electrical conductor inserted into the conductor connection terminal 1 via the first insertion opening 123 in the direction of the connection device 300.

The application of force to the conductor introduced into the conductor connection terminal 1 via the first insertion opening 123 means of the clamping spring 400 will be explained with reference to Figu ^¬ ren 3 and 4 each show a cross section of the conductor terminal. 1 In this case, the connection of two electrical conductors is explained by way of example with one another, it being noted that the conductor connection terminal 1 has a number of slide elements 200, clamping springs 400 and connecting devices 300 corresponding to the number of poles. Based on the illustrations of Figures 3 and 4, the internal structure of the conductor terminal 1 is described using the example of Ver ^¬ binding of an electrical conductor pair consisting of two electrical conductors. The conductor connection terminal 1 has a slide element 200 which is displaceable relative to the housing 100 between an open position shown in FIG. 3 and a closed position shown in FIG. For this purpose, the slider element 200 is slidably received in a guide recess 114 of the first part 110 of the housing 100. The slider element 200 also has a guide groove 204, in which a guide leg 304 of the connecting device 300 is slidably received. Consequently, the slider element 200 is displaceable both with respect to the housing 100 and with respect to the connection ^device 300 arranged in the housing 100.

Furthermore, it can be seen from FIGS. 3 and 4 that the clamping spring 400 has a pressure leg 401 and a clamping leg 403 connected thereto via a bending joint 404. The bending joint 404 is arranged in a bearing shell 121 (see FIGS. 2 to 4) of the second part 120 of the housing 100. So that the flexure 404 is always applied at the La ^¬ gerschale 121, the connecting means 300, a holding member 304, the flexure 404 between the bearing shell 121 and the holding member 304 sandwiching is arranged. Therefore, the clamping spring 400 is pivotable or tiltable or rotatable about an axis defined by the housing 100 between a release position shown in FIG. 3 and a clamping position shown in FIG.

The movement of the slider member 200 is positively coupled with the movement of the clamp spring 400. Thus, the clamping spring 400 is always in its release position when the slider element 200 is in its open position. When the slider element 200 is in its closed position, then the clamping spring 400 is necessarily in its clamping position. For this forced coupling of the positions of the slide member 200 and the lock spring 400 200 has the slide member having the improved manual actuation Be ^¬ an outside handle contour 201, a pusher 202 and a follower 203 on. The pressure leg 401 of the clamping spring 400 is arranged between the pusher 202 and the driver 203.

By moving the slider element 200 from the open position into its closed position, the pusher 202 acts on the pressure leg 401, so that the clamping spring 300 in the illustration according to FIGS. 3 and 4 performs a clockwise pivoting. As a result of this pivoting of the clamping spring 400, the clamping leg 403 is pivoted in the direction of the connecting device 300, more specifically in the direction of a clamping plate 302 of the connecting device 300. In the clamping position of the clamping spring 300 is then the clamping leg 403 with the clamping plate 302 in Ver ^¬ bond. When a conductor is inserted into the conductor terminal 1 via the first insertion hole 123, the conductor is force-urged by the clamping leg 403 onto the clamping plate 302 of the connector 300, thus that thereby a reliable electrical connection of the conductor with the connecting device 300 is ensured. When the slider element 200 is transferred from the closed position shown in FIG. 4 into the open position shown in FIG. 3, the pressure leg 401 of the clamping spring 400 is subjected to such a force by the driver 203 that the clamping spring 400 moves from the clamping position shown in FIG 3 is pivoted counterclockwise shown release position.

By arranging the pressure leg 401 between the pusher 202 and the driver 203, a forced coupling of the positions of the slider element 200 and the clamping spring 400 is consequently achieved. Since the pressure leg 401 from both the Drue ^¬ cker 202 and of the follower 203, depending on the displacement direction of the slide member 200 always mitgenom ^¬ men is, the pusher 202 may be referred to as a first driver 202 and the follower 203 as a second follower 203 ,

The clamping spring 400 is at least partially elastic. In the illustrated embodiment, the clamping spring 400 is formed of a spring steel. Due to the elastic configuration of the clamping spring 400 can also be in the clamping position of the clamping spring 400, so if the slider element 200 is in its closed position, a conductor via the first insertion 123 are inserted into the housing 100 and under elastic deformation of the

Clamping spring 400 between the clamping legs 403 and the clamping plate 302 are positioned. From Figure 4 it can be seen that in the clamping position of

Clamping spring 400 enclosed by the clamping leg 403 and the clamping plate 302 and opened in the direction of the first Einführöff ^¬ opening 123 angle is less than 90 °. By an appropriate design, an elastic deformation of the clamping spring 400 is further facilitated, so that in spite of a closing position befindlichem slider element 200, a conductor further simplified in the Leiteran ^¬ terminal block 1 introduce and connect electrically connectable with another conductor, without the slide element 200 in the Open position must be postponed.

From the figures 2 to 6 it is also apparent that the pressure leg 401 of clamping spring 400, a handle 202 of the sliding member 200 facing detent recess 402 has ^¬. In the closed position shown in Figure 4 of the slide member 200 of the pusher is received 202 in the Rastvertie ^¬ Fung 402, so that despite the application of force of the slide member 200 by the clamping spring 400, the rail berelement 200 is not moved to its open position.

The force exerted by the clamping spring 400 on the slider element 200, more precisely on the pusher 202, remains in the clamping position of the clamping spring 400 in the connecting device 300. For the clamping leg 403 transmits at least indirectly a compressive force on the clamping plate 302, where ^¬ gene of the pressure leg 401 indirectly via the slider element 200, in more detail via the pusher 202 and the guide groove 204, on the guide leg 304 of the connecting device 300 exerts a compressive force. For this reason, the clamping spring is not deformed 400, the housing 100 through the spring clamp 400 in clamping ^¬ position. Reference sign list:

1 conductor connection terminal

100 housing / insulating housing

110 first part (of the housing)

111 retaining bar (in the housing for the clamping spring)

112 retaining tongues (of the first part of the housing)

113 (second) insertion opening (of the housing)

114 guide recesses (for slide element)

120 second part / cover (of the housing)

121 bearing shell / rolling contour (in the housing for the Klemmfe ^¬ der)

122 retaining recesses (of the second part of the housing)

123 (first) insertion opening (of the housing)

200 slide element / slider / actuator

201 handle contour (of the slider element)

202 pusher / pressure edge / first pressure element / first

takeaway

203 (second) driver / return pin / return nose

204 guide groove (of the slider element)

205 receiving gap (between pusher and driver)

300 connection device

301 contact tulip (the connecting device)

302 clamping plate (the connecting device)

303 holding element (the connecting device)

304 Guide leg (connecting device) 400 Clamping spring

401 pressure leg (the clamping spring)

402 detent recess (of the pressure leg)

403 clamping leg (of the clamping spring)

404 Bend joint (the clamping spring)

Claims

claims

1st conductor connection terminal (1) with

a housing (100);

- A slider element (200) which is displaceable relative to the housing (100) between an open position and a closed position;

an electrically conductive connection device (300) which is accessible via an insertion opening (123) of the housing (100); and

a clamping spring (400), introduced by means of a from the insertion opening (123) in the housing (100) ^¬ Lei ter to the link means (300) is beatable kraftbeauf-,

characterized in that

the pivotable between a release position and a clamping position clamping spring (400) comprises a pressure arm (401) and connected to this via a Biegege ^¬ directing (404) the clamping leg (403); - The slider element (200) has a pusher (202) and a driver (203), wherein the pressure leg (401) between the pusher (202) and the driver (203) is arranged;

by moving the slider element (200) in its closed position of the pusher (202) the pressure leg

(401) subjected to such a force that the clamping spring (400) is pivoted into its clamping position, so that a conductor introduced into the housing (100) via the insertion opening (123) is subjected to a force on the connecting device (300) by means of the clamping leg (403);

by moving the slider element (200) in its open position of the driver (203) the pressure leg (401) subjected to such a force that the clamping spring (400) is pivoted in its release division.

2. conductor terminal (1) according to claim 1, character- ized in that the clamping spring (400) is at least from ^¬ sectionally elastic and a of the pressure ^¬ leg (401) and clamping leg (403) enclosed Win ^¬ kel is changeable, so in the clamping position of the clamping spring (400), a conductor can be inserted into the housing (100) via the insertion opening (123) and can be positioned under elastic deformation of the clamping spring (400) between the clamping leg (403) and the connecting device (300).

3. Conductor terminal (1) according to claim 2, characterized in that the connecting device (300) has a clamping plate (302) with which a via the Einführöff ^¬ tion (123) in the housing (100) introduced conductor in Kon ^¬ tact brought is, wherein in the clamping position of the clamping spring (400) of the clamping legs (403) and the clamping plate (302) ei ^¬ nen to the insertion opening (123) open angle of less than or equal to 90 °.

4. conductor terminal (1) according to one of the preceding claims, characterized in that the pressure leg

(401) of the clamping spring (400) has a latching recess (402) facing the pusher (202) of the slide element (200), into which the pusher (202) is received in the closed position of the slide element (200).

5. conductor terminal (1) according to any one of the preceding claims, characterized in that the slide element (200) has a guide groove (204) and the connecting means (300) has a guide leg (304), wherein the guide ing shank (304) is slidably received in the guide groove (204).

6. conductor terminal (1) according to any one of the preceding claims, characterized in that the housing (100) has a bearing shell (121) in which the bending joint (404) of the clamping spring (400) is pivotally received.

7. conductor terminal (1) according to claim 6, character- ized in that the connecting means (300) has a Hal ^¬ teelement (304), wherein the bending joint (404) of the clamping spring (400) between the bearing shell (121) and the holding element (304) is arranged.