DE102015104625A1 - Conductor terminal - Google Patents

Abstract

The present invention discloses a conductor terminal (1) comprising a housing (100, 110, 120), a pivoting lever (200), a current bar (300) accessible via an insertion opening (123) of the housing (100, 110, 120) and a clamping spring (400), wherein the conductor connection terminal is characterized in that the pivoting lever (200) has a in the housing (100; 110, 120) rotatably mounted axis strut (203) about which the pivot lever (200) between its open position and closed position is pivotable, and that between an actuating handle (201) of the pivot lever (200) and the pusher member (202) is formed a receiving opening (204) of the pivoting lever (200) through which the holding leg (401) and the clamping leg (403) of the clamping spring are passed.

Description

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.

So revealed the DE 10 2013 101 406 A1 a conductor terminal with a housing, in each of which one of the number of poles corresponding number of pivoting levers, current bars and clamping springs are provided. The housing comprises a plurality of adjacent insertion openings into which conductors to be electrically connected to one another are insertable. The pivot levers each have rotatably mounted and positioned on the current bar pivot bearing, each pivot bearing has an actuating portion. The clamping springs each have a holding leg and a clamping leg connected thereto by means of a bending joint. In a closed position of the pivot lever of the clamping leg of the clamping spring rests on the current bar. By transferring the pivot lever in its open position of the clamping leg of the clamping spring is pushed away by the actuating portion of the pivot bearing under tension in the clamping spring from the current bar in a release position.

By means of from the DE 10 2013 101 406 A1 known conductor terminal only conductors can be clamped with a small conductor cross-section. So that conductors with a larger cross-section can be clamped and electrically contacted, the conductor connection terminal must be considerably increased in its dimensioning, in particular in its height. Furthermore, in the case of the DE 10 2013 101 406 A1 known conductor terminal the risk that the clamping lever located in the open position due to the pressurization by the clamping spring moves automatically towards the closed position. Consequently, to contact and clamp a conductor, the pivot lever must always be held manually in its open position, and only after placing the conductor in the conductor terminal and pivoting the pivot lever in its closed position, this can be released by the operator.

The object underlying the present invention is to provide an improved, more user-friendly, and more compactly constructed conductor terminal.

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 terminal with a housing, a pivot lever, an accessible via an insertion of the housing current bar and a clamping spring, wherein the pivot lever has a pusher and with respect to the housing between an open position and a closed position pivotally is, wherein the clamping spring has a holding leg and a clamping leg connected thereto via a bending joint, wherein in the closed position of the pivot lever inserted via the insertion opening into the housing ladder by means of the clamping leg located in a clamping leg on the current bar kraftbeaufschlagbar, and wherein during transfer of the pivot lever in its open position of the clamping legs by means of this standing in direct and immediate contact pusher under tension in the clamping spring from the current bar in a release estellung is pushed away, wherein the conductor terminal according to the invention is characterized in that the pivot lever has a rotatably mounted in the housing axis strut about which the pivot lever between the open position and the closed position is pivotable, and that between an actuating handle of the pivot lever and the pusher element is a receiving opening of the pivot lever is formed through which the holding leg and the clamping leg of the clamping spring are passed.

The conductor terminal according to the invention has the advantage that it is particularly space-saving and thus has a compact design, further ensuring that even electrical conductors can be clamped with an enlarged cable cross-section.

The electrical conductor to be clamped can be brought into direct contact with the contacting section of the current bar when the conductor is inserted into the housing via the insertion opening. Under a stress build-up in the clamping spring is to be understood in particular a stress build-up in the bending joint of the clamping spring. By a voltage build-up in the bending joint of the clamping spring, the angle between the holding leg and the clamping leg changes. The retaining leg of the clamping spring serves to hold the clamping spring within the housing.

The closed position of the pivot lever is associated with the clamping position of the clamping leg, and the open position of the pivot lever is associated with the release position of the clamping leg.

The conductor connection terminal is preferably designed such that a contacting plane defined by the contacting section is arranged between the pusher element and the axis strut of the pivot lever.

An appropriately designed conductor connection terminal offers the advantage that electrical conductors can also be clamped with a further enlarged conductor cross-section. Because due to the positioning of the Kontaktierungsabschnitts the current bar between the pusher and the axis strut is pushed away when transferring the pivot lever from the closed position to the open position of the clamping leg to an enlarged stroke of the contacting section, so that even conductors with a large line cross-section between the clamping legs of the clamping spring and the contacting portion of the current bar can be introduced.

In the case of the appropriately designed conductor connection terminal, the contacting section and thus also the contacting plane are arranged below the presser element and above the axis strut.

The conductor connection terminal is preferably designed such that in the open position of the pivot lever, the pusher element is positioned with respect to the axis strut that is pressed by applying force to the pusher element by means of the clamping leg located in the release position of the pivot lever in the direction of its open position.

By an appropriate design of the conductor terminal, a self-locking of the pivot lever is realized when the pivot lever has been pivoted in its open position. In the open position of the pivot lever this is not transferred by the application of force to the pusher element by means of the clamping leg of the clamping spring in its closed position.

In the side view of the conductor connection terminal, the pusher element is arranged behind the axis strut in the open position of the pivot lever. A horizontal distance of the pusher element to the insertion opening is then greater than a horizontal distance of the axis strut to the insertion opening. When pivoting the pivot lever from the closed position in its open position, the pusher element performs a pitch circle around the defined axis of the pivot axis / axis of rotation, the pusher is pivoted beyond a dead center of the circular path out when the pivot lever is pivoted in its open position in its entirety. In the dead center, the clamping leg has a maximum distance to the contacting region of the current bar. Before reaching the dead center, the distance between the pusher element and the contacting region is smaller. When the dead center is exceeded, the distance between the pusher element and the contacting region becomes smaller again.

It is thus realized a self-locking, since the clamping leg located in the release position does not remain without manual folding / swinging the pivot lever in its closed position in the release position.

The conductor connection terminal is preferably designed such that the pusher element is designed as a pressure strut, which extends substantially parallel and offset from the axis strut. The appropriately trained conductor terminal can be designed to save material. Furthermore, the resulting free spaces of the conductor connection terminal can be used for receiving, for example, the clamping spring.

Further preferably, the conductor terminal is formed such that between a control handle of the pivot lever and the pusher element, a receiving opening of the pivot lever is formed through which the holding leg and the clamping leg of the clamping spring are passed. The appropriately designed conductor terminal builds very space-saving and therefore has a compact design.

Further preferably, the conductor connection terminal is formed such that the pivot lever has a through opening arranged between the pusher element and the axis strut, through which a conductor inserted through the insertion opening into the housing and to be contacted with the current bar can be passed. This feature also causes a compact design of the conductor terminal.

Further preferably, the conductor terminal is formed such that the clamping spring is at least partially elastic and an included by holding leg and clamping leg angle is changed, so that in befindlichem in clamping position clamping leg a conductor via the insertion into the housing insertable and under elastic deformation of the clamping spring between the clamping leg and the contacting portion of the current bar is positionable.

The angle enclosed by the pressure leg and clamping leg is consequently changed by inserting a conductor into the insertion opening, especially reduced. For example, the bending joint of the clamping spring may be elastic. However, the entire clamping spring can be designed to be elastic, in particular if the clamping spring is formed from a spring steel.

A suitably designed conductor terminal has the advantage that, despite the pivoting lever located in the closed position and consequently clamping spring in clamping position, a conductor continues to be introduced into the housing via the insertion opening and connected to the current bar, which can also be generally referred to as a connecting device. it remains ensured that the conductor is subjected to force by means of the clamping spring on the current bar, more precisely on the contacting section of the current bar and thus clamped. The handling of the correspondingly designed conductor terminal is therefore considerably improved since, for contacting an electrical conductor with the conductor terminal, the pivot lever does not necessarily have to be pivoted into its release position.

Further preferably, the conductor terminal is formed such that the contacting portion of the current bar is formed as a clamping plate, with a introduced via the insertion opening into the housing conductor can be brought into contact, in the clamping position of the clamping leg this with the clamping plate an opening to the insertion angle of less than or equal to 90 °.

By a corresponding design of the conductor connection terminal and in particular of the clamping spring, a further simplified insertion of a conductor into the conductor connection terminal is possible despite the locking lever located in the closed position and corresponding clamping leg of the clamping spring located in the clamping position. Furthermore, it is ensured by a corresponding angular position of the clamping leg towards the clamping plate or towards the introduced into the conductor terminal conductor that the clamping leg of the clamping spring an unwanted withdrawal of the conductor counteracts, since the edge of the clamping leg of the clamping spring in a pulling out of the conductor from the Housing buried in the ladder.

Further preferably, the conductor connection terminal is formed such that the housing has a bearing shell, in which the axis strut of the pivot lever is received. This ensures a secure positioning of the pivot lever in the housing and allows easy assembly of the correspondingly designed conductor terminal, since the axis strut only needs to be inserted into the bearing shell provided and possibly locked.

Further advantages, details and features of the invention will become apparent from the illustrated embodiment. In detail:

1 a perspective view of a conductor terminal according to the invention;

2 : an exploded view of the in 1 shown conductor terminal;

3 : a representation of a cross section of the in 1 shown conductor terminal, wherein the pivot lever is in its open position; and

4 : in the 3 shown conductor terminal with located in the closed position swivel lever.

In the following description, like reference numerals denote like components or like features, so that a description made with respect to a figure with respect to a 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.

1 shows a conductor terminal according to the invention 1 that a housing 100 that has a first part 110 and a second part 120 includes. As in particular from 2 is apparent, are the first part 110 and the second part 120 of the housing 100 connectable to each other via a latching connection. For this purpose, the second part 120 of the housing 100 holding tongues 122 on that in the first part 110 of the housing 100 arranged retaining recesses 112 can engage so that the retaining recesses 122 through the retaining tongues 112 are behind the scenes.

The housing 100 In the illustrated embodiment, each has three first insertion openings 123 and three second insertion openings 113 on, so that by means of the appropriately designed conductor terminal 1 in each case three pairs of electrical conductors can be connected to one another. The conductor connection terminal 1 However, any number of first insertion opening 123 and second insertion openings 113 have to electrically connect a corresponding number of electrical conductor pairs with each other.

As in particular from the 3 and 4 it can be seen, a conductor is in the second insertion opening 113 insertable and from a contact tulip 301 of the current bar 300 clamped. For this purpose, the current bar includes 300 two mutually running elastic conductor tongues, the contact tulip 301 form. By a corresponding structure is a reliable electrical connection from one to the second insertion 113 inserted contact tongue with the current bar 300 guaranteed. A ladder is above the first insertion opening 123 into the conductor connection terminal 1 insertable and with the current bar 300 electrically connectable by a clamping spring 400 via the first insertion opening 123 into the conductor connection terminal 1 inserted electrical conductor in the direction of the current bar 300 with force.

As a further embodiment, a printed circuit board connection terminal (not shown) can be implemented. Here, instead of a contact tulip, solder pins led out of the insulating, which can be soldered to a circuit board. The solder pins are in one piece with the current bar 300 connected.

The application of force via the first insertion opening 123 into the conductor connection terminal 1 introduced conductor by means of the clamping spring 400 is referring to the 3 and 4 explains, each having a cross section of the conductor terminal 1 demonstrate. In this case, the connection of two electrical conductors is explained with each other by way of example, it being noted that the conductor terminal 1 one of the number of poles of the conductor connection terminal 1 corresponding number of pivot levers 200 , Clamping springs 400 and current bars 300 having.

Based on the representations of 2 to 4 becomes the internal structure of the conductor terminal 1 described using the example of the connection of an electrical conductor pair. The conductor connection terminal 1 has a pivot lever 200 on, also as an actuator 200 can be designated, wherein the pivot lever 200 with respect to the housing 100 between an in 3 shown open position and a in 4 shown closed position is pivotable. This is the pivot lever 200 in a guide recess 124 of the second part 120 of the housing 100 slidably and / or pivoted added.

The clamping spring 400 has a holding leg 401 and one with this over a bending joint 404 connected clamping legs 403 on. The clamping spring 400 also has a leg 402 in which an opening or a window is arranged, so that the leg 402 also as a window leg 402 can be designated. The clamping leg end protrudes through the window of the window leg 402 therethrough. The holding thigh 401 and the clamping leg 403 thereby run in the area of the bending joint 404 approximately parallel to each other, wherein the clamping leg 403 from the flexure joint 404 extending away in the direction of a clamping plate 302 of the current bar 300 is bent.

The swivel lever 200 has an operating handle 201 on, also as a handle contour 201 can be designated, and by means of the pivot lever 200 can be pivoted between the open position and closed position. The swivel lever 200 also has a compression strut 202 trained pusher element 202 and an axle brace 203 on. The strut 202 and the axle brace 203 are essentially parallel to each other. In particular from the 3 and 4 it can be seen that between the operating handle 201 and the strut 202 a receiving opening 204 of the pivot lever 200 is formed, through which the holding leg 401 and the clamping leg 403 passed through. Furthermore, the pivot lever 200 one between the strut 202 and the axle brace 203 arranged passage opening 205 on, through the one over the insertion opening 123 in the case 100 introduced and with the current bar 300 can be guided to be contacted conductor. In the case 100 is a bearing cup 121 provided in the axle strut 203 is rotatably received, so that the pivot lever 200 with respect to the housing 100 is pivotally mounted.

In 4 is the conductor connection terminal 1 with pivoting lever located in the closed position 200 shown. The pusher element 202 lies on the clamping leg 403 on, wherein the clamping leg 403 due to its bending with the as a clamping plate 302 trained contacting section 302 of the current bar 300 in contact. By pivoting the pivot lever 200 in the in 3 illustrated open position of the conductor terminal is the clamping leg 403 by means of the pressure strut 202 under tension in the clamping spring 400 from the current bar 300 pushed away in its release position, so that the clamping leg 403 no longer with the clamping plate 302 communicates.

From the 3 and 4 it can be seen that one of the Kontaktierungsabschnitt 302 or from the clamping plate 302 defined contacting level 303 between the strut 202 and the axle brace 203 is arranged. Consequently, the contacting portion 302 and thus also the contacting level 303 below the strut 202 and above the axle stay 203 arranged. Due to the positioning of the axle brace 203 below the clamping plate 302 leads when pivoting the pivot lever 200 the strut 202 and consequently also the clamping leg 403 a large stroke and moves away correspondingly far from the clamping plate 302 , leaving a large receiving space between the clamping plate 302 and the clamping leg 403 is formed, whereby electrical conductors with a large conductor cross-section in the correspondingly formed conductor terminal 1 are insertable.

Between the strut 202 and the axle brace 203 is also a passage opening 205 of the pivot lever 200 provided by the one through the insertion opening 123 in the case 100 introduced and with the current bar 300 can be guided to be contacted conductor. The corresponding design of the pivot lever 200 allows a compact design of the conductor terminal 1 ,

The clamping spring 400 is elastic, since this is formed of a spring steel. Consequently, one is from the holding leg 401 and the clamping leg 403 included angle changeable, so that even in clamping position befindlichem clamping leg 403 a conductor over the insertion opening 123 in the case 100 insertable and under elastic deformation of the clamping spring 400 between the clamping leg 403 and the clamping plate 302 is insertable or insertable. This insertion of a conductor between the clamping legs 403 and the clamping plate 302 in the closed position located pivot lever 200 is also favored by the feature that in clamping position of the clamping leg 403 this with the clamping plate 302 one to the insertion opening 123 includes an open angle of less than 90 °.

In particular from 3 it can be seen that in the open position of the pivot lever 200 the strut 202 with respect to the axle brace 203 is positioned such that by applying force to the strut 202 by means of the clamping leg located in the release position 403 the pivot lever 200 is pressed in the direction of its open position. In the open position of the pivot lever 200 this is due to the application of force to the strut 202 by means of the clamping leg 403 not transferred to its closed position. From the side sectional view of 3 it turns out that the compression strut 202 behind the axle brace 203 is arranged, thus a horizontal distance of the strut 202 towards the insertion opening 123 is greater than a horizontal distance of the axis strut 203 to the insertion opening 123 ,

When pivoting the pivot lever 200 from the in 4 shown closed position in the in 3 shown open position performs the strut 202 a partial orbit around the axis of the strut 203 defined pivot axis / axis of rotation, wherein the pressure strut 202 is pivoted beyond a dead center of the circular path out. In the dead point, the clamping leg 403 to the clamping plate 302 a maximum distance. When pivoting the pivot lever 200 beyond the dead center, the distance of the strut is 202 towards the contact area 302 smaller again. It is thus realized a self-locking, when the pivot lever 200 is in its open position, since the clamping leg located in the release position 403 not without manual folding or swiveling of the pivot lever 200 remains in the closed position in the release position.

LIST OF REFERENCE NUMBERS

1

 Conductor terminal

100

 Housing / insulating

110

 first part (of the housing)

112

 Retaining recesses (of the first part of the housing)

113

 (second) insertion opening (of the housing)

120

 second part / cover (of the housing)

121

 Bearing shell (in the housing for the axle brace of the pivoting lever)

122

 Retaining tongues (of the second part of the housing)

123

 (first) insertion opening (of the housing)

124

 Guide recesses (for pivot lever)

200

 Pivoting lever / actuator

201

 Operating handle / handle contour (of the slide element)

202

 Presser member / compression strut

203

 axis strut

204

 Receiving opening (between operating handle and pusher element)

205

 Feed-through opening (between pusher element and axis strut)

300

 Current bar / connection means

301

 Contact tulip / conductor terminal funnel (of the current bar)

302

 Contacting section / clamping plate (the connecting device)

303

 Contacting level (defined by contacting section)

400

 clamping spring

401

 Retaining leg (the clamping spring)

402

 Window leg (the clamping spring)

403

 Clamping leg (the clamping spring)

404

 Bend joint (the clamping spring)

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 102013101406 A1 [0003, 0004, 0004]

Claims (8)

Conductor connection terminal ( 1 ) with a housing ( 100 ; 110 . 120 ), a pivoting lever ( 200 ), one via an insertion opening ( 123 ) of the housing ( 100 ; 110 . 120 ) accessible current bars ( 300 ) and a clamping spring ( 400 ), wherein - the pivot lever ( 200 ) a pusher element ( 202 ) and with respect to the housing ( 100 ; 110 . 120 ) is pivotable between an open position and a closed position; - the clamping spring ( 400 ) a holding leg ( 401 ) and one with this via a bending joint ( 404 ) connected clamping legs ( 403 ) having; - In the closed position of the pivot lever ( 200 ) via the insertion opening ( 123 ) in the housing ( 100 ; 110 . 120 ) inserted conductor by means of the located in a clamping position clamping leg ( 403 ) on the current bar ( 300 ) is kraftbeaufschlagbar; and - when transferring the pivoting lever ( 200 ) in its open position of the clamping legs ( 403 ) by means of the pusher element which is in direct and direct contact therewith ( 202 ) under stress build-up in the clamping spring ( 400 ) from the current bar ( 300 ) is pushed away into a release position, characterized in that - the pivot lever ( 200 ) one in the housing ( 100 ; 110 . 120 ) rotatably mounted axis strut ( 203 ), about which the pivot lever ( 200 ) is pivotable between the open position and closed position; and between an operating handle ( 201 ) of the pivoting lever ( 200 ) and the pusher element ( 202 ) a receiving opening ( 204 ) of the pivoting lever ( 200 ) is formed, through which the holding leg ( 401 ) and the clamping leg ( 403 ) of the clamping spring are passed. Conductor connection terminal ( 1 ) according to claim 1, characterized in that one of the contacting section ( 302 ) defined contacting level ( 303 ) between the pusher element ( 202 ) and the axle brace ( 203 ) of the pivoting lever ( 200 ) is arranged. Conductor connection terminal ( 1 ) according to one of the preceding claims, characterized in that in the open position of the pivot lever ( 200 ) the pusher element ( 202 ) with respect to the axle brace ( 203 ) is positioned such that by applying force to the pusher element ( 202 ) by means of the clamping leg located in the release position ( 403 ) the pivot lever ( 200 ) is pressed in the direction of its open position. Conductor connection terminal ( 1 ) according to one of the preceding claims, characterized in that the pusher element ( 202 ) as a pressure strut ( 202 ) is formed, which is substantially parallel and offset from the axis strut ( 203 ) runs. Conductor connection terminal ( 1 ) according to one of the preceding claims, characterized in that the pivot lever ( 200 ) one between the pusher element ( 202 ) and the axle brace ( 203 ) arranged through opening ( 205 ) through which a through the insertion opening ( 123 ) in the housing ( 100 ; 110 . 120 ) and with the current bar ( 300 ) can be guided to be contacted conductor. Conductor connection terminal ( 1 ) according to one of the preceding claims, characterized in that the clamping spring ( 400 ) is at least partially elastic and one of the holding leg ( 401 ) and clamping legs ( 403 ) angle is variable, so that in clamping position befindlichem clamping leg ( 403 ) a conductor over the insertion opening ( 123 ) in the housing ( 100 ; 110 . 120 ) and under elastic deformation of the clamping spring ( 400 ) between the clamping leg ( 403 ) and the contacting section ( 302 ) of the current bar ( 300 ) is positionable. Conductor connection terminal ( 1 ) according to claim 6, characterized in that the contacting section ( 302 ) of the current bar ( 300 ) as a clamping plate ( 302 ) is formed with the one via the insertion opening ( 123 ) in the housing ( 100 ; 110 . 120 ) inserted conductor can be brought into contact, wherein in the clamping position of the clamping leg ( 403 ) this with the clamping plate ( 302 ) one to the insertion opening ( 123 ) includes an opened angle of less than or equal to 90 °. Conductor connection terminal ( 1 ) according to one of the preceding claims, characterized in that the housing ( 100 ; 110 . 120 ) a bearing shell ( 121 ), in which the axis strut ( 203 ) of the pivoting lever ( 200 ) is recorded.

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