LU502518B1 - Connection arrangement - Google Patents

Abstract

The invention relates to a connection arrangement (100) for connecting an electrical conductor (200), with - a housing (110), - a conductor connection space (111) formed in the housing (110), - a current bar (112), against which the A conductor (200) to be connected inserted into the conductor connection space (111) can be clamped, - a clamping spring (113), which has a clamping leg (115) which can be moved into a clamping position and into an open position, - a main body (118). Actuating element (116), by means of which the clamping leg (115) of the clamping spring (113) can be moved from the clamping position to the open position when the actuating element (116) is moved along an actuating direction (B), the actuating element (116) being in the open position of the clamping spring (113) is locked in a fixed position relative to the housing (110) by latching with the housing (110), and - a pressure element (123) arranged in the housing (110), which has a pressure surface (136), which to transfer the clamping spring (113) from the open position to the clamping position can be actuated by the conductor (200) to be connected and by actuating the pressure surface (136), the pressure element (123) can be actuated in such a way that the clamping leg (115) is released in order to from the open position to the clamping position.

Description

Connection arrangement

LU502518

The invention relates to a connection arrangement for connecting an electrical

conductor.

Such connection arrangements usually have a clamping spring designed as a leg spring, which has a holding leg and a clamping leg, with a conductor inserted into the connection arrangement by means of the

Clamping leg of the clamping spring can be clamped against a current bar. If flexible conductors in particular are clamped, the clamping spring must already be in front of you

Insertion of the conductor by means of the actuating element is transferred into an open position and thus actuated in order to remove the clamping spring or the clamping leg from the

To pivot the current bar away so that the conductor can be inserted into the space between the current bar and the clamping spring forming the conductor connection space. Only in the case of rigid and therefore stable conductors can the conductor apply sufficient force to the clamping spring or the clamping leg of the clamping spring in order to be able to pivot the clamping leg away from the busbar without the actuating element having to be actuated by a user.

With flexible ladders, the user must first press the

Actuating element pivot the clamping spring away from the current bar so that the flexible conductor can be inserted. To clamp the inserted conductor, the actuating element must be manually operated again by the user in order to move the clamping spring from the open position to the clamping position. The

Actuating the actuating element by the user makes assembly or installation more difficult

Connecting the conductor for the user, as handling is cumbersome and therefore takes more time.

The invention is therefore based on the object of providing a connection arrangement

To provide in which the connection of flexible conductors in particular can be improved.

The object is achieved according to the invention with the features of the independent claim. Appropriate refinements and advantageous developments of the invention are specified in the subclaims.

The connection arrangement according to the invention has a housing, a conductor connection space formed in the housing, a current bar against which the in the

The conductor to be connected can be clamped into the conductor connection room

Clamping spring, which has a clamping leg that can be moved into a clamping position and into an open position, a main body having

Actuating element, by means of which the clamping leg of the clamping spring

Moving the actuating element along an actuating direction from the

Clamping position can be transferred to the open position, with the actuating element in the

Open position of the clamping spring by locking it with the housing in a fixed position

Position is locked relative to the housing, and one arranged in the housing

Pressure element which has a pressure surface which is used to transfer the

Clamping spring from the open position to the clamping position through the to be connected

Conductor can be actuated and by actuating the pressure surface, the pressure element can be actuated in such a way that the clamping leg is released in order to move from the open position to the

to pivot the clamping position.

By means of the connection arrangement according to the invention, a flexible one can now also be used

Conductors can be easily and safely connected and clamped against the power bar.

The clamping spring is preferably designed as a leg spring, which has a holding leg and a clamping leg which is designed to be pivotable relative to the holding leg. The holding leg is preferably arranged in a fixed position. By pivoting the clamping leg of the clamping spring, it can be turned into one

Open position, in which the clamping leg is arranged at a distance from the current bar and a conductor to be connected is formed thereby

Space between the current bar and the clamping leg in the

Conductor connection space can be inserted or removed from it, and into one

Clamping position, in which the clamping leg can rest on the current bar or on the connected conductor in order to clamp the conductor against the current bar, can be transferred. The transfer of the clamping leg in particular from the

Clamping position into the open position takes place using an actuating element. The

The actuating element is preferably guided in a substantially linear manner in the housing so that it can move. In order to be able to hold the clamping leg in the open position without this

The actuating element has to be held manually in this position

Actuating element in the open position of the clamping spring on the housing in a fixed position

Position locked relative to the housing. By locking the

Actuating element with the housing, the actuating element can be automatically held in its position and pressed down and locked by this

Position the clamping leg of the clamping spring by pivoting it upwards

Prevent the direction of the current bar. The locking of the actuating element with the housing can be released via the pressure element arranged in the housing.

The pressure element can be actuated using the conductor to be connected itself. For this purpose, the pressure element has a pressure surface against which the conductor to be connected can collide when inserted into the conductor connection space, whereby the pressure element, for example, in a sliding direction, which is the

Insertion direction of the conductor corresponds, can be moved or displaced, whereby the pressure element can be actuated in such a way that the actuating element is out of its position

Latching with the housing is released and thereby the clamping leg of the

Clamping spring is released by the actuating element, so that it is removed from the

Open position can pivot into the clamping position. For connecting one

The conductor therefore does not have to be actuated using the actuating element or with an additional tool. The pressure surface is aligned in such a way that it limits the conductor connection space in the conductor insertion direction. This is achieved by locking the actuating element in the open position of the clamping spring

Actuating element is immersed in its locked position so far into the housing that the actuating element neither protrudes from the housing nor is flush with an outer wall of the housing. Due to the fixed position of the actuating element immersed in the housing in the open position of the clamping spring, the actuating element can serve as a display element for a user to

to indicate the open position of the clamping spring.

It is preferably provided that in the open position of the clamping spring

Actuating element with an actuating surface formed on the main body

Clamping leg of the clamping spring rests. By resting the actuating element with its actuating surface in the open position of the clamping spring, it can be in this position

Position must be held so that the device cannot swing back unintentionally

Clamping leg of the clamping spring can be prevented from the open position into the clamping position. The actuating element can therefore not only be used when actuating the

Clamping spring itself rests with its actuating surface on the clamping leg of the clamping spring, but also while the clamping spring is held in the open position.

The locking of the actuating element on the housing can be released by means of

Printing element done. For example, the pressure element can have a sliding surface which is used to release the locking between the actuating element and

Housing interacts with the actuating element. This can be done with the sliding surface

Pressure element along a surface or outer surface of the main body of the

Actuating element slide and thereby move the actuating element such that the locking between the actuating element and the housing is released.

The pressure element can push or lever the actuating element out of the locking position with the housing. The actuating element can be one

Carry out a tilting movement transversely to the actuation direction within the actuation shaft.

The sliding surface of the pressure element preferably extends obliquely

Direction of actuation of the actuating element. Due to the oblique course of the

The sliding surface can be the sliding surface when sliding along the actuating element

Move the actuating element laterally or push it away to the side in order to release the lock between the actuating element and the housing. Due to the oblique course of the

The sliding surface preferably extends at an angle between 3° <a <30° to the actuation direction of the actuation element or to the sliding direction of the pressure element.

The pressure element is preferably arranged in the housing so that it can be moved linearly. The

The pressure element is then preferably arranged in the housing in such a way that the

Sliding direction of the pressure element parallel to the actuation direction of the

Actuating element extends. The pressure element and the actuating element can thus be moved or displaced parallel to one another. The pressure element and that

Actuating element can then have the same actuation direction. Both those

Actuating direction of the actuating element as well as the sliding direction of the

Pressure element preferably corresponds to the direction of insertion of the conductor into the housing and into the conductor connection space.

Alternatively, it is also possible for the pressure element to be pivotably mounted in the housing. The pressure element can then be designed as a pivoting element, which is mounted in the housing so that it can pivot about a pivot axis.

This can be used to form the locking mechanism between the housing and the actuating element

Actuating element has a locking contour, which can interact with an undercut formed on the housing. This can be done using the locking contour

Latch or hook behind the actuating element on the undercut formed on the housing in the open position 5 of the clamping spring. The undercut can be in the form of a recess or clearance formed on an inner wall of the housing. The undercut allows a locking edge to be created on an inner wall of the

Be formed housing. The locking contour is preferably outside of the

Actuating element formed actuating surface is provided.

The latching contour formed on the actuating element can be designed, for example, in the form of a projection projecting from the main body of the actuating element. With this projection, the actuating element can be attached to the

Snap the undercut of the housing back into place. The projection can be in the form of, for example

Locking nose or locking pin or locking web can be formed. The projection can extend over a large part or over the entire width of the actuating element.

Furthermore, it is also possible for the locking contour to be provided on the main body of the

Actuating element formed inclined surface is formed. The inclined surface can then cooperate with an undercut formed on an inner wall of the housing. The inclined surface can be on an edge surface of the

Actuating element can be formed. For example, the inclined surface can be formed adjacent to an upper side of the actuating element. The top is the side of the actuator on which there is a tool engagement surface

Actuating the actuating element is formed.

It is preferably provided that the actuating element is not only held in a fixed position relative to the housing in the open position of the clamping spring, but that the actuating element is also held in a fixed position in the clamping position of the clamping spring

Position can be maintained relative to the housing. To achieve this, the can

Actuating element has a holding contour that cooperates with the housing for holding the actuating element in the clamping position of the clamping spring in a relative to the

Housing has a fixed position. Especially for ladders with a small

Cross section can be ensured by ensuring that the actuating element does not move uncontrollably within the housing when the conductor is connected. This means that the actuating element can also be arranged in a defined position within the housing when the clamping spring is in the clamping position. The housing can have a second undercut or a groove surface, which can interact with the holding contour of the actuating element.

The holding contour can be designed in the form of a nose protruding from the main body of the actuating element. Such a nose can, for example, cooperate with a groove surface formed on an inner wall of the housing by

Nose can be guided at least partially in this groove surface. The nose can have a flat inclined surface in the unlocking direction of the actuating element and a

Have locking edge in the actuation direction of the actuating element. The nose can be approximately in the middle of the length of the actuator on the main body of the

Actuating element can be formed.

Alternatively, it is possible for the holding contour to be secured by one on the main body of the

Actuating element formed undercut is formed. One like that

Undercut can be made between the actuation surface and the top of the

Actuating element can be formed. Such an undercut can be provided with an undercut formed on an inner wall of the housing, in particular a second one

Undercut, work together.

In order to stop the actuating element from moving against the direction of actuation when the clamping leg pivots from the open position into the clamping position, the housing can have a stop surface to limit the path of the

Actuating element opposite to the actuating direction of the actuating element. The stop surface can be formed on an inner wall of the housing.

The stop surface can also prevent the actuating element from slipping out of the housing.

It is also possible for the pressure element to have a holding element with which the clamping leg can be engaged in the open position of the clamping spring.

For example, the clamping leg can be in the open position with its clamping edge

Clamping spring can be clamped against the holding element. The holding element can be formed on the pressure element in such a way that the holding surface projects into the conductor connection space. The holding element can have a holding surface for holding the clamping leg in the open position and a driving surface along which the clamping leg can be held in the open position

Transfer from the clamping position into the open position slides. Will that

Clamping leg is actuated by means of the actuating element in order to be transferred from the clamping position to the open position, the clamping leg can be moved along the

Driving surface of the holding element slide, whereby the clamping leg can exert a pressure force on the holding element and thus on the pressure element, so that the

Pressure element is moved in the sliding direction until the clamping leg slides from the driving surface onto the holding surface and can thereby lock behind the holding element. When sliding along the driving surface, the pressure element can be moved in the same direction as the actuating element, which presses on the clamping leg. The clamping leg can be positioned with its clamping edge along the

Slide on the driving surface and lock onto the holding surface.

The pressure element can preferably have a first side wall and a second side wall arranged opposite the first side wall, the conductor connection space being able to extend between the first side wall and the second side wall and the first side wall and/or the second side wall being able to form a conductor guide. The conductor to be connected can then be clamped within the

Pressure element, between the two side walls of the pressure element. The two side walls are spaced so far apart that the clamping leg of the clamping spring can be pivoted between the two side walls in order to fit into the

Clamping position and can be moved into the open position. The first side wall and/or the second side wall can then simultaneously form a lateral guide for the conductor within the conductor connection space, so that incorrect insertion or evasion of the conductor to be connected can be prevented. The first

The side wall and/or the second side wall can be arranged in such a way that they form an extension of the wall of the housing delimiting the conductor insertion opening. This means that a conductor to be connected can be based on the

Conductor insertion opening of the housing can be guided further into the conductor connection space along the immediately adjacent first and / or second side wall of the pressure element.

The pressure element can be spring-operated. The connection arrangement can do this

Have a return spring, which can cooperate with the pressure element. If a conductor to be connected hits the pressure surface of the pressure element when connecting, the pressure element is moved in the sliding direction and the return spring is tensioned.

As soon as the clamping leg is no longer through the actuating element or through the

The pressure element is held in the open position by the spring force of the

Return spring pushes the pressure element back into its position against the sliding direction

Starting position can be moved. The return spring can ensure that the pressure element is actuated by the clamping leg of the

Clamping spring or by the conductor to be connected again and again into its defined position

Starting position is moved back.

The return spring is preferably supported on the current bar. This allows the

Return spring be supported against a metal element. The return spring is preferably angled towards one, in particular at a 90 ° angle

Clamping section supporting section of the current bar.

The return spring can be designed, for example, as a leaf spring. The return spring can then be U-shaped. The leaf spring can be connected to the pressure element with a leg of the U-shape.

For example, the return spring can be formed in one piece with the pressure element. Pressure element and return spring can then be made of the same material. For example, the pressure element and the return spring can both be made of a metal material. It is also possible that the pressure element and the return spring are both made of a plastic material.

Furthermore, it is also possible for the return spring to be designed as a separate component from the pressure element. The printing element can, for example, consist of one

Be formed from plastic material. The return spring can, for example, consist of one

Be formed metal material.

In order to facilitate assembly of the connection arrangement, the pressure element can have a clearance on a side wall for lateral assembly of the clamping spring

Have housing. The clamping spring can be used via the franking

Clamping legs are pushed laterally past one of the two side walls of the pressure element until the clamping spring is arranged with its clamping leg in the pressure element, in particular between the two side walls of the pressure element.

The connection arrangement developed and developed as described above can, for example, be in a connection terminal, such as a terminal block or a

Circuit board connection terminal can be formed.

The invention is explained in more detail below with reference to the accompanying drawings using preferred embodiments.

Show it:

Fig. 1 is a schematic representation of a connection arrangement according to the invention in an open position of the clamping leg

clamping spring,

Fig. 2 is a schematic representation of the one shown in Fig. 1

Connection arrangement in a perspective view,

Fig. 3 is a schematic sectional view of the one shown in Fig. 1

connection arrangement,

Fig. 4 is a schematic representation of the one shown in Fig. 1

Connection arrangement when transferring the clamping spring from the

open position into the clamping position,

Fig. 5 is a schematic sectional view of the one shown in Fig. 1

Connection arrangement when connecting a conductor,

Fig. 6 is a schematic sectional view of the one shown in Fig. 1

Connection arrangement with the clamping spring in the clamping position,

Fig. 7 is a schematic representation of the one shown in Fig. 1

Connection arrangement when the actuating element moves against the actuation direction,

Fig. 8 is a schematic representation of the one shown in Fig. 1

Connection arrangement with the clamping spring in the clamping position and the actuating element in a held state,

Fig. 9 is a schematic sectional view of the one shown in Fig. 8

connection arrangement;

10 is a schematic perspective sectional view of the connection arrangement shown in FIG. 8,

Fig. 11 is a schematic detailed sectional view in the area of

Holding contour of the actuating element and the housing,

12 is a schematic representation of the actuating element,

Fig. 13 is a schematic representation of the force curve when actuating the

actuating element,

14 is a schematic representation of the pressure element together with the return spring,

15A and 15B are a schematic representation of an assembly process

connection arrangement,

16 is a schematic representation of a further actuating element,

Fig. 17 is a schematic sectional view of the one shown in Fig. 16

Actuating element in a locked with the housing

Condition when the clamping spring is in the open position,

Fig. 18 is a schematic representation of a further connection arrangement with the actuating element shown in Fig. 16 and the

clamping spring in the open position,

Fig. 19 is a schematic sectional view of the one shown in Fig. 16

Actuating element held in one with the housing

State when the clamping spring is in the clamping position and

Fig. 20 is a schematic representation of that shown in Fig. 18

Connection arrangement with that shown in Fig. 16

Actuating element and the clamping spring in the clamping position.

1 to 15B show a connection arrangement 100 according to one possible

Design. This connection arrangement 100 can, for example, in one

A connection terminal, such as a terminal block or a circuit board connection terminal, can be integrated.

The connection arrangement 100 has a housing 110 made of an insulating material.

A conductor connection space 111 is formed in an interior of the housing 110, within which the conductor 200 to be connected is connected. The conductor 200 to be connected can be formed in the housing 110

Conductor insertion opening 121 can be inserted into the conductor connection space 111. In the

A current bar 112 with its clamping section 122 projects into the conductor connection space 111, against which the conductor 200 to be connected can be clamped and connected by means of a clamping spring 113. The clamping spring 113 is designed as a leg spring, which has a holding leg 114 and a clamping leg 115.

By means of the clamping leg 115, the conductor 200 to be connected is clamped against the current bar 112 or against the clamping section 122 of the current bar 112.

An actuating element 116 is provided to transfer the clamping leg 115 from a clamping position, as shown, for example, in FIG. 9, into an open position, as shown, for example, in FIG. 1. The actuating element 116 is guided essentially linearly along the actuation direction B in a housing shaft 117 of the housing 110.

The actuator 116 has a main body 118. At his in

Actuating direction B of the actuating element 116 lower end, the main body 118 has an actuating surface 119, which is particularly useful when actuating the

Clamping leg 115 is in operative connection with the clamping leg 115 of the clamping spring 113. The actuating element 116 has a top side 140

Tool engagement surface 120 into which a tool, such as a screwdriver, can engage to actuate the actuating element 116 in order to do so

Actuating element 116 to guide in actuating direction B.

The connection arrangement 100 also has a pressure element 123. The pressure member 123 has a first side wall 124A, and one opposite the first

Side wall 124A arranged second side wall 124B. The two side walls 124A, 124b are arranged at a distance from one another, with the

Conductor connection space 111 extends into the free space between the two side walls 124A, 124B. The clamping leg 115 of the clamping spring 113 is positioned pivotably in the free space between the two side walls 124A, 124B. The

The conductor 200 to be connected is clamped between the first side wall 124A and the second side wall 124B.

The first side wall 124A is designed so long that it forms an extension of the wall 125 of the housing 110 delimiting the conductor insertion opening 121, as can be seen in particular in FIG. 1. The conductor 200 inserted into the conductor insertion opening 111 is thereby guided further along the side walls 124A, 124B of the pressure element 123 following the wall 125, so that the first

Side wall 124A and/or the second side wall 124B form a conductor guide in the area of the conductor connection space 111.

The clamping spring 113 is held in the clamping position by means of the actuating element 116, as shown in FIGS. 1 and 2. The actuating element 116 lies with its

Actuating surface 119 on the clamping leg 115 of the clamping spring 113. So that

Actuating element 116 can automatically remain in this position

Actuating element 116 in the open position of the clamping spring 113 is locked in a fixed position relative to the housing 110 by latching with the housing 110, as can be seen in FIGS. 1 and 2.

To form the latching, the actuating element 116 has a latching contour 127, which interacts with an undercut 126 formed on the housing 110.

The undercut 126 is formed on the wall 125 of the housing 110. The

Undercut 126 is in the form of a in the embodiment shown in FIGS. 1 to 15B

Step or a projection on the housing 110 or on the wall 125 of the

Housing 110 is formed, as can be seen in particular in FIG. The undercut 126 can extend over the entire width of the housing 110 or the connection arrangement 100.

In the embodiment shown in FIGS. 1 to 15B, the locking contour 127 is designed in the form of a projection projecting from the main body 118 of the actuating element 116. The locking contour 127 or the projection extends from that

Main body 118 of the actuating element 116 in the direction of the clamping section 122 of the

Current bar 112. The locking contour 127 or the projection can extend over the entire

Width of the actuating element 116 extend. The locking contour 127 is formed at a distance from the actuation surface 119 on the main body 118 of the actuation element 116. The locking contour 127 is seen in the actuation direction B above the

Actuating surface 119 is formed on the actuating element 116.

The actuating element 116 can be locked on the housing 110 by means of the

Pressure element 123 can be solved. The pressure element 123 is mounted in the housing 110 so as to be linearly displaceable along a sliding direction S. The pressure element 123 and that

Actuating element 116 are arranged relative to one another in the housing 110 in such a way that the sliding direction S is parallel to the actuating direction B of the

Actuating element B extends.

The pressure element 123 has a sliding surface 128, which is used to release the locking between the actuating element 116 and the housing 110 with the

Actuating element 116 interacts. During a sliding movement of the

Pressure element 123 against the sliding direction S, the pressure element 123 can slide along with its sliding surface 128 on the main body 118 of the actuation element 116 in such a way that the actuation element 116 is pressed to the side, in particular in a direction transverse to the actuation direction B, and thereby

Actuating element 116 can be unhooked from the latching with the housing 110. The sliding surface 128 extends, as shown for example in FIG. 1, obliquely to the actuation direction B of the actuating element 116 or obliquely to the sliding direction

S of the pressure element 123. Due to the oblique course of the sliding surface 128, the sliding surface 128 preferably extends at an angle of approximately 25 ° to the actuation direction

B of the actuating element 116 or to the sliding direction S of the pressure element 123.

The sliding surface 128 slides along a surface 129 of the actuating element 116 or the main body 118 of the actuating element 116, which extends essentially opposite to the actuating surface 119.

The sliding surface 128 can be on one of the two side walls 124A, 124B or on both

Side walls 124A, 124B of the pressure element 123 may be formed.

The actuating element 116 further has a cooperating with the housing 110

Holding contour 130 for holding the actuating element 116 in the clamping position

Clamping spring 113 is in a fixed position relative to the housing 110. In this way, the actuating element can be held in a fixed position even in the clamping position of the clamping spring 113 when a conductor 200 is connected, so that an unwanted

Movement of the actuating element 116 can be safely prevented.

In the embodiment shown in FIGS. 1 to 15B, the holding contour 130 is designed in the form of a nose protruding from the main body 118 of the actuating element 116. The nose forming the holding contour 130 has a flat inclined surface 131 in the unlocking direction of the actuating element 116 and a locking edge 132 in

Actuation direction B of the actuation element 116. The nose is approximately in the middle

Length of the actuating element 116 is formed on the main body 118 of the actuating element 116, as can be seen in particular in FIG. 12.

In the embodiment shown in FIGS. 1 to 15B, the one designed as a nose acts

Holding contour 130 with a groove surface 133 formed on an inner wall of the housing 110, in that the holding contour 130, designed as a nose, is guided at least partially in this groove surface 133, as can be seen in the sectional view of FIG. 11.

In order to also prevent the actuating element 116 from being pulled out of the housing 110, the housing 110 has a stop surface 134 to limit the path of the

Actuating element 116 counter to the actuating direction B, as can be seen, for example, in the sectional view of FIG. 9. The stop surface 134 is in the form of a

Projection or a step is formed on an inner wall of the housing 110. The

Stop surface 134 is positioned such that when the actuating element 116 is at the

Stop surface 134 comes to rest, the actuating element 116 with its

Top side 140, on which the tool engagement surface 120 is formed, flush with the

Outside of the housing 110 is arranged.

The pressure element 123 interacts with a return spring 135. If a conductor 200 to be connected hits the pressure surface 136 of the

Pressure element 123, the pressure element 123 is moved in the sliding direction S and the

Return spring 135 is tensioned. As soon as the clamping leg 115 is out of engagement with the

Actuating element 116 has reached the spring force of the return spring 135

Pressure element 123 returns to its position against the sliding direction S

Starting position can be moved.

The return spring 135 is supported against a section 137 of the current bar 112, which extends perpendicular to the clamping section 122 of the current bar 112.

The return spring 135 is here formed in one piece with the pressure element 123. The

Return spring 135 has a U-shape. Return spring 135 and pressure element 123 can be made of a plastic material, for example.

1 to 3 show the connection arrangement 100 with the clamping spring 113 in the

open position. The actuating element 116 is here with its locking contour 127 on the

Housing 110 latches so that the actuating element 116 with its

Actuating surface 119 rests in a fixed position on the clamping leg 115 in order to

To hold clamping spring 113 in the open position.

To connect a conductor 200, the conductor 200 is inserted into the housing 110 in the insertion direction E via the conductor insertion opening 121, as can be seen in FIGS. 4 and 5.

The clamping leg 115 of the clamping spring 113 is in the open position in that the clamping leg 115 is held in position by the actuating element 116.

If the conductor 200 is inserted into the conductor connection space 111, the conductor 200 abuts against the pressure surface 136 which delimits the conductor connection space 111 in the insertion direction E

Pressure element 123. This causes the pressure element 123 to be pushed downwards in the sliding direction S. Due to this movement of the pressure element 123 in the sliding direction S, the pressure element 123 slides with its sliding surface 128 along the actuating element 116, whereby it is pushed away laterally and thereby the locking between

Actuating element 116 and housing 110 is released. The clamping leg 115 of the

Clamping spring 113 is thereby initially pushed further in by the actuating element 116

Pivoted towards the holding leg 114 and thereby slightly overpressed. Because of this

Over-pressing the clamping leg 115 of the clamping spring 113 can ensure that even when connecting conductors 200 with a large conductor cross-section

Clamping leg 115 of the clamping spring 113 is initially spaced from the conductor 200, as can be seen in FIG. 5, so that an acceleration of the clamping leg 115 occurs

Pivoting in the direction of the conductor 200 to connect the conductor 200 can be achieved. This enables secure and good clamping of what is to be connected

Conductor 200 regardless of its conductor cross section.

6 shows the clamping spring 113 in the clamping position, in which the clamping leg 114 clamps the conductor 200 against the clamping section 122 of the current bar 112.

As can be seen in FIGS. 7 and 8, the actuating element 116 moves counter to the actuating direction when it is released from its locking position with the housing 110

B. The actuating element 116 dips with its holding contour 130 into the groove surface 133 of the housing 110, as can be seen in FIGS. 8, 10 and 11. The

Actuating element 116 is moved upwards against the actuating direction B until the actuating element 116 abuts the stop surface 134 of the housing 110 and thus the actuating element 116 with its top 140 is flush with the

The outer surface or outside of the housing 110 completes, as can be seen in FIG. The actuating element 116 then has the greatest possible distance with its actuating surface 119 from the clamping leg 115 of the clamping spring 113.

Fig. 13 shows a force curve of the actuating element 116. The dashed line shows a force curve in a conventionally designed

Connection arrangement. The required force F to be applied to the actuating element 116 increases continuously as the clamping spring 113 is transferred from the clamping position to the open position. The drawn non-dashed line shows the

Force curve of the actuating element 116 in a connection arrangement 100 according to

Invention. The necessary amount to be applied to the actuating element 116 increases

Force F does not increase continuously, but the force curve is wave-like. A slightly larger force F is required at the beginning. This results in a jerky movement

Actuating element 116 and the locking can be achieved safely. The amount of force required to be applied then decreases.

Fig. 14 shows again the pressure element 123 with the return spring 135 formed on the pressure element 123. As can be seen in particular here, this has

Pressure element 123 on the side wall 124A a clearance 138 for a side

Mounting the clamping spring 113 in the housing 110. The franking 138 is in

Sliding direction S of the pressure element 123 is formed below the sliding surface 128. The clamping spring 113 can be connected to the franking 138

Clamping legs 115 are pushed laterally past the side wall 124A until the

Clamping spring 113 with its clamping leg 115 is arranged in the pressure element 123, in particular between the two side walls 124A, 124B of the pressure element 123.

Figures 15A and 15B show such an assembly. When assembling the

Connection arrangement 100, the pressure element 123 is first attached to the current bar 112 with the return spring 135. This arrangement is then made

Pressure element 123, return spring 135 and current bar 112 are pushed laterally into the housing 110, as indicated by the arrow in FIG. 15A. This is then done

Assemble the clamp spring 113 by inserting the clamp spring 113 laterally into the housing 110, as shown in Fig. 15B. For this purpose, the clamping leg 115 is pivoted slightly in the direction of the holding leg 114, so that the clamping leg 115 can be inserted via the clearance 138 on the side wall 124A of the housing 110 into the area between the two side walls 124A, 124B.

A further embodiment of a connection arrangement 100 is shown in FIGS. 16 to 20. The functional principle of the connection arrangement 100 shown in FIGS. 16 to 20 essentially corresponds to the connection arrangement 100 shown in FIGS. 1 to 15B. The embodiment shown in FIGS. 16 to 20 differs in the form

Locking contour 127 and the holding contour 130 on the actuating element 116.

The locking contour 127 is formed here by an inclined surface formed on the main body 118 of the actuating element 116. The one formed by an inclined surface

The locking contour 127 can be formed here on an inner wall of the housing 110

Undercut 126 cooperate, as shown in Fig. 17. The locking contour 127 designed as an inclined surface is formed on an edge surface 139 of the actuating element 116, this edge surface 139 being adjacent to an upper side 140 of the

Actuating element 116 is formed. The top 140 is the side of the

Actuating element 116, on which the tool engagement surface 120 for actuating the

Actuating element 116 is formed.

Furthermore, in the embodiment shown in FIGS. 16 to 20, the holding contour 130 is formed by an undercut formed on the main body 118 of the actuating element 116. The undercut forming the holding contour 130 is between the

Actuating surface 119 and the top 140 of the actuating element 116 are formed.

The undercut forming the holding contour 130 is here in the form of an incision or a clearance on one which extends at a 90 ° angle to the top 140

Side wall 141 of the actuating element 116 is formed. The holding contour designed as an undercut can cooperate with an undercut 142 formed on an inner wall of the housing 110, in particular a second undercut 142, as shown in FIG. 19.

Fig. 18 shows the clamping spring 113 in the open position. The clamping leg 115 is held in the open position here by the contact of the actuating element 116 with its actuating surface 119 on the clamping leg 115. In addition, the clamping leg 115 is locked to the pressure leg 123. There is one or both for that

Side walls 124A, 124B of the pressure element 123 are formed with a holding element 143 pointing in the direction of the conductor connection space 111, on which the clamping leg 115 can lock behind, as shown in FIG. 18. The holding element 143 is here in the form of a

Retaining tab formed. The actuating element 116 is shown here in FIG. 17

Position arranged by the actuating element 116 over the locking contour 127 on the

Undercut 126 of the housing 110 is locked.

Fig. 20 shows the connection arrangement 100 with the clamping spring 113 in the clamping position.

The clamping leg 115 is out of locking with the holding element 143 of the

Pressure element 123 released and the actuating element 116 was counteracted

Actuating direction B shifted upwards, so that the actuating element 116 is now held with its holding contour 130 on the undercut 142 of the housing 110, so that the actuating element 116 is arranged with its top 140 flush with an outside of the housing 110, as in Fig. 19 is shown.

A user can see from the position of the actuating element 116 whether the clamping spring 113 is in the open position or in the clamping position.

List of reference symbols 100 Connection arrangement 110 Housing 111 Conductor connection space 112 Current bar 113 Clamping spring 114 Holding leg 115 Clamping leg 116 Actuating element 117 Housing shaft 118 Main body 119 Actuating surface 120 Tool engagement surface 121 Conductor insertion opening 122 Clamping section 123 Pressure element 124A , 124B side wall 125 wall 126 undercut 127 locking contour 128 sliding surface 129 surface 130 holding contour 131 inclined surface 132 Locking edge 133 Groove surface 134 Stop surface 135 Return spring 136 Pressure surface 137 Section 138 Clearance 139 Edge surface 140 Top 141 Side wall

142 Undercut 143 Holding element 200 Conductor

B Operating direction

E Insertion direction

S sliding direction a angle

Claims (16)

Expectations 1. Connection arrangement (100) for connecting an electrical conductor (200), with - a housing (110), - a conductor connection space (111) formed in the housing (110), - a current bar (112), against which the in the conductor connection space (111) inserted conductor (200) to be connected can be clamped, - a clamping spring (113), which has a clamping leg (115) which can be moved into a clamping position and into an open position, - an actuating element (116) having a main body (118). ), by means of which the clamping leg (115) of the clamping spring (113) can be moved from the clamping position to the open position when the actuating element (116) is moved along an actuating direction (B), the actuating element (116) being in the open position of the clamping spring (113). is locked in a fixed position relative to the housing (110) by latching with the housing (110), and - a pressure element (123) arranged in the housing (110), which has a pressure surface (136) which is used to transfer the Clamping spring (113) can be actuated from the open position into the clamping position by the conductor (200) to be connected and by actuating the pressure surface (136), the pressure element (123) can be actuated in such a way that the clamping leg (115) is released in order to move from the open position into to pivot the clamping position. 2. Connection arrangement (100) according to claim 1, characterized in that in the open position of the clamping spring (113), the actuating element (116) with an actuating surface (119) formed on the main body (118) on the clamping leg (115) of the clamping spring (113) applied. 3. Connection arrangement (100) according to claim 1 or 2, characterized in that the pressure element (123) has a sliding surface (128) which is used to release the locking between the actuating element (116) and the housing (110) with the actuating element (116 ) interacts. 4. Connection arrangement (100) according to claim 3, characterized in that the sliding surface (128) of the pressure element (123) extends obliquely to the actuation direction (B) of the actuation element (116). 5. Connection arrangement (100) according to one of claims 1 to 4, characterized in that the pressure element (123) is arranged in a linearly displaceable manner in the housing (110). 6. Connection arrangement (100) according to one of claims 1 to 5, characterized in that to form the latching, the actuating element (116) has a latching contour (127) which cooperates with an undercut (126) formed on the housing (110). 7. Connection arrangement (100) according to claim 6, characterized in that the locking contour (127) is designed in the form of a projection projecting from the main body (118) of the actuating element (116). 8. Connection arrangement (100) according to claim 6, characterized in that the latching contour (127) is formed by an inclined surface formed on the main body (118) of the actuating element (116). 9. Connection arrangement (100) according to one of claims 1 to 8, characterized in that the actuating element (116) has a holding contour (130) which interacts with the housing (110) for holding the actuating element (116) in the clamping position of the clamping spring (113). in a fixed position relative to the housing (110). 10. Connection arrangement (100) according to claim 9, characterized in that the holding contour (130) is designed in the form of a nose protruding from the main body (118) of the actuating element (116). 11. Connection arrangement (100) according to claim 9, characterized in that the holding contour (130) is formed by an undercut formed on the main body (118) of the actuating element (116). 12. Connection arrangement (100) according to one of claims 1 to 11, characterized in that the housing (110) has a stop surface (134) for limiting the travel of the actuating element (116) against the actuating direction (B) of the actuating element (116). 13. Connection arrangement (100) according to one of claims 1 to 12, characterized in that the pressure element (123) has a holding element (143) with which the clamping leg (115) is engaged in the open position of the clamping spring (113). 14. Connection arrangement (100) according to one of claims 1 to 13, characterized by a return spring (135) which interacts with the pressure element (123). 15. Connection arrangement (100) according to claim 14, characterized in that the return spring (135) is formed in one piece with the pressure element (123). 16. Connection arrangement (100) according to one of claims 1 to 15, characterized in that the pressure element (123) has a clearance (138) on a side wall (124A, 124b) for lateral mounting of the clamping spring (113) in the housing (110 ) having.