DE102025117911A1 - conductor connection terminal - Google Patents

Abstract

The invention relates to a conductor terminal with an insulating housing which has at least one conductor entry opening for receiving an electrical conductor in a conductor entry direction, wherein at least one spring-loaded clamping connection for connecting an electrical conductor by means of spring force is arranged in the insulating housing, wherein the spring-loaded clamping connection has at least one busbar and a clamping spring which has a clamping leg with a clamping edge for clamping an electrical conductor at a clamping point on a contact section of the busbar.

Description

The invention relates to a conductor terminal with an insulating housing which has at least one conductor entry opening for receiving an electrical conductor in a conductor entry direction, wherein at least one spring-loaded clamping connection for connecting an electrical conductor by means of spring force is arranged in the insulating housing, wherein the spring-loaded clamping connection has at least one busbar and a clamping spring which has a clamping leg with a clamping edge for clamping an electrical conductor at a clamping point on a contact section of the busbar.

Such a conductor terminal block is made from the DE 10 2020 119 372 A1 This is a conductor terminal with automatic connection of the electrical conductor to be connected when it is inserted into the terminal. Inserting the conductor automatically releases the clamping arm of the spring, which is held in an open position, thus clamping the conductor securely.

Based on this, the object of the present invention is to provide a further improved conductor terminal.

This problem is solved by arranging a driver on the clamping arm. This driver has a deflection surface projecting from the clamping arm on the side facing away from the contact section (and thus the clamping point). The clamping arm can be moved from a clamped position to an open position by an actuating force applied to the deflection surface in the opposite direction to the conductor insertion. This allows for the simple integration of an actuating mechanism for the clamping arm, even in existing conductor terminal designs, particularly those that previously lacked such an actuating mechanism. In this way, proven conductor terminals of known design can be easily upgraded to include manual actuation. Advantageously, the clamping arm can then be actuated, for example, from the rear of the insulating housing, i.e., in the opposite direction to the conductor insertion.

Because the clamping arm is actuated from "behind", the design of the conductor terminal can be kept as flat as possible, since the actuation channel and the conductor entry channel do not have to be arranged next to or above each other.

The invention is suitable, for example, for compact junction box terminals, e.g., those with leaf spring connection, in which the clamping leg is connected to a support section of the clamping spring without a spring arc known in many conductor connection terminals, which extends over an angle range of more than 180°.

The clamping point can be formed, for example, between the clamping edge of the clamping leg and a contact point on the contact section of the busbar.

According to an advantageous embodiment of the invention, the driver is formed integrally with the clamping arm, or the driver is designed as a separate component from the clamping spring, which is attached to the clamping arm. This allows for a variety of design options for the clamping spring and the driver. If the driver is formed integrally with the clamping arm, it can, for example, be designed as an extended section of material from the clamping arm, diametrically opposed to the side of the clamping edge. If the driver is designed as a separate component, it can, for example, be attached to the clamping arm by positive-locking fixing elements.

According to an advantageous embodiment of the invention, the driver is fixed at a mounting point on the clamping leg, at least against forces acting against the direction of conductor insertion, with at least one connecting arm of the driver extending from the mounting point against the direction of conductor insertion to the deflection surface. This allows for a more favorable lever ratio for deflecting the clamping leg when the deflection surface is acted upon. For example, the driver can extend via the at least one connecting arm from a mounting point near the clamping edge to the root of the clamping leg, i.e., to a point where the clamping leg branches off from the support section, for example. Depending on the design of the driver, it can, for example, have a central connecting arm or two connecting arms extending laterally along the clamping leg.

According to an advantageous embodiment of the invention, the at least one connecting arm is arranged orthogonally to the planar extent of the clamping leg and/or orthogonally to the planar extent of the deflection surface. This enables good force transmission and absorption at the deflection surface when the driver is actuated. Furthermore, the area moment of inertia can be reduced with minimal effort. The drive element is increased in the longitudinal direction of the clamping leg.

According to an advantageous embodiment of the invention, the at least one connecting arm is arranged parallel to or at an acute angle to the planar extension of the clamping leg. This variant is particularly suitable for a drive unit with a central connecting arm.

According to an advantageous embodiment of the invention, the at least one connecting arm has a higher area moment of inertia in the longitudinal direction of the clamping leg than the clamping leg itself. This ensures that when the driver is actuated, it is primarily the clamping leg that bends, and not so much the driver itself. To increase the area moment of inertia, stiffening elements extending longitudinally, such as beads and/or embossing, can be formed in the at least one connecting arm.

According to an advantageous embodiment of the invention, a pivot bearing is arranged on the side of the clamping arm facing away from the deflection surface. The clamping arm can be pivotally supported on this bearing when the deflection surface is actuated, thus assisting the pivoting movement of the clamping arm into the open position. This has the advantage that the pivot bearing simplifies the pivoting movement of the clamping arm into the open position and reduces the forces that must be applied to the deflection surface. The user can then deflect the clamping arm much more easily. The support point where the clamping arm rests on the pivot bearing during the pivoting movement can, for example, be located between the clamping edge and the point where the actuating force is applied to the deflection surface. In an advantageous embodiment, the support point can be located closer to the point where the actuating force is applied than to the clamping edge, or substantially midway between the point where the actuating force is applied and the clamping edge. The contact point can form a kind of tipping point where the clamping leg can perform a tilting movement, similar to a seesaw.

According to an advantageous embodiment of the invention, the insulating housing has at least one actuating channel in which an actuating tool, which is not part of the terminal block, or a push button designed as part of the terminal block (which may be a separate component from the insulating housing), can be arranged to actuate the clamping arm. The actuating channel thus allows the actuator at the deflection surface to be subjected to an actuating force. If an actuating tool, e.g., a screwdriver, is used, it can be inserted into the actuating channel as needed. The actuating tool then does not have to remain attached to the terminal block. An electrical conductor with sufficient stiffness can also be used as an actuating tool.

If the conductor terminal has its own push button for actuating the clamping arm, this button can be permanently located in the actuating channel. In this case, the user must apply manual actuating force to an actuating surface of the push button, either directly with a finger or with a suitable tool.

According to an advantageous embodiment of the invention, the deflection surface projects into the actuating channel or at least into a housing section of the insulating housing that is arranged as an extension of the actuating channel. The actuating tool or push button is thus guided precisely to the deflection surface by the actuating channel, ensuring reliable opening of the clamping point.

According to an advantageous embodiment of the invention, the actuating channel is accessible via an actuating opening in the insulating housing, which is located on a side of the housing opposite the conductor entry opening. The actuating opening can, in particular, be located on a side of the housing diametrically opposite the conductor entry opening, e.g., the rear of the housing. The tool can be inserted through this actuating opening or, if a push button is present, it can be manually actuated.

According to an advantageous embodiment of the invention, the conductor terminal has a retaining element designed to hold the clamping arm in the open position. This retaining element allows the clamping arm to remain in the open position even when no actuating force is applied to the actuator. Such a design enables the integration of an automatic release technology into spring-clamp terminals and conductor terminals of various designs. In particular, proven conductor terminals of known design can thus be easily retrofitted with an automatic release function, i.e., with automatic The conductor connection of the electrical conductor to be clamped will be further developed.

The retaining element can be movably arranged, e.g., sliding, pivoting, or otherwise deflectable, so that it can be easily deflected by the inserted conductor to achieve the desired release of the clamping arm from the retaining element. The retaining element can be slidably mounted, for example, in a linear or arc-shaped direction. The retaining element can be pivotally mounted. In this case, the retaining element can pivot about a fixed or variable pivot axis. In the case of a variable pivot axis, the retaining element can, for example, be mounted to pivot with a floating bearing. The retaining element can also perform a combined sliding and pivoting movement. The retaining element can also be movably mounted in another way so that it can deflect sufficiently far to release the locking of the clamping arm from the retaining element.

The actuator allows the clamping arm to be moved into the open position against the spring force of the clamping spring when manually actuated. In this open position, the clamping arm can then be held by the retaining element, even without further manual actuation of the mechanism, so that the electrical conductor can be inserted at any time without requiring any special force. For example, the clamping arm can be locked onto the retaining element in the open position.

The clamping arm, together with the contact section of the busbar, can form a clamping point for connecting an electrical conductor between the clamping arm and the contact section. In the open position, at least the clamping edge of the clamping arm is pivoted away from the contact section of the busbar. The clamping arm can be pivoted, for example, between an open position in which the electrical conductor is freely movable between the clamping arm and the contact section, and a clamped position in which the clamping arm clamps the electrical conductor to the contact section.

The retaining element can, for example, act directly on the clamping leg to hold it in the open position. Thus, for instance, a first locking element can be arranged on the clamping leg and a second locking element on the retaining element, with the first and second locking elements being able to interlock in the open position. The first locking element can be designed as a locking projection or locking hook. The second locking element can be designed as a locking edge or locking opening.

The retaining element can be a separate component, attached, for example, to the insulating housing of a conductor terminal block, to the busbar, or to another component. Alternatively, the retaining element can be integrally formed with the clamping spring.

According to an advantageous embodiment of the invention, the retaining element is arranged behind the clamping point or behind the majority of the busbar in the direction of conductor insertion into the spring-loaded clamping connection. In this way, the retaining element does not obstruct the insertion of the electrical conductor. For example, in the open position, i.e., when the clamping leg is locked onto the retaining element, the retaining element, when viewed in the direction of conductor insertion, may not protrude into a conductor receiving space, or may only protrude slightly, relative to the clamping leg.

According to an advantageous embodiment of the invention, the spring-loaded clamping connection has a release element, the actuation of which deflects the retaining element sufficiently to release the clamping leg held on the retaining element. The release element may have a release section. The clamping leg, held on the retaining element in the open position, can be released from the retaining element by means of the release element when an electrical conductor to be connected exerts an actuating force on the release section. This allows the clamping leg to be automatically released from the retaining element by inserting the electrical conductor. The release section can be actuated by a separate tool, a component of the conductor connection terminal, such as an actuating element, or directly by the inserted electrical conductor itself, thereby causing the clamping leg to be released from the retaining element. The release element allows the clamping leg, which is held in the open position on the retaining element, to be released from the retaining element by applying pressure to the release section in the conductor entry direction (L) of the electrical conductor to be connected. Depending on the design of the spring-clamp connection, the release element can be formed as part of the clamping spring, e.g., as a release element integrally formed with the clamping spring, or as a separate component.

According to an advantageous embodiment of the invention, the release element is provided that it is part of the component or assembly of the spring-clamp connection that includes the retaining element. This reduces the design and assembly effort for the spring-clamp connection. The clamping connection can be kept to a minimum. In particular, this means that only one component or assembly is required for mounting the release element and the retention element, rather than two separate components or assemblies. For example, the release element can be molded as a single piece with the retention element. The component or assembly can be made of plastic, metal, or a combination of these materials.

According to an advantageous embodiment of the invention, the clamping spring has a support section designed to support the clamping spring on the busbar. This support section ensures secure support of the clamping spring and provides sufficient resistance to the spring force exerted by the clamping leg.

According to an advantageous embodiment of the invention, the support section comprises a base section and a mounting section, wherein the clamping leg branches off from the base section and the support section, with its mounting section, engages behind the busbar, so that the busbar rests on the mounting section and is at least partially arranged between the base section and the mounting section. The clamping leg can branch off from the base section, in particular without a 180° spring arc. For example, the clamping leg can branch off from the base section at an acute angle, which, for instance, may be less than 60° in the open position. The base section can be connected to the mounting section via a connecting section. For example, the base section can run substantially parallel to the mounting section or at a slight angle to it, in particular an angle of less than 20°.

According to an advantageous embodiment of the invention, a conductor guidance channel can be formed in the insulating housing for guiding the electrical conductor to be clamped to the contact section, wherein the release section of the release element is arranged in the conductor guidance channel or at least projects into the conductor guidance channel or projects into the extension of the conductor guidance channel.

According to an advantageous embodiment of the invention, the release section of the release element can be arranged behind the contact section or at least behind the clamping point in the conductor insertion direction.

For the purposes of the present invention, the indefinite term "a" is not to be understood as a numeral. Therefore, when, for example, reference is made to a component, this is to be interpreted as "at least one component". Where angles are specified in degrees, these refer to a circle of 360 degrees (360°).

The invention is explained in more detail below with reference to exemplary embodiments and drawings.

• 1 eine Leiteranschlussklemme in seitlicher Schnittansicht in der Klemmstellung,
• 2 die Leiteranschlussklemme gemäß 1 in der Offenstellung,
• 3 einen Mitnehmer in einer ersten Ausführungsform in perspektivischer Ansicht,
• 4 einen Mitnehmer in einer zweiten Ausführungsform in perspektivischer Ansicht,
• 5 eine weitere Ausführungsform einer Leiteranschlussklemme in seitlicher Schnittdarstellung in der Klemmstellung,
• 6 eine weitere Ausführungsform einer Leiteranschlussklemme in seitlicher Schnittdarstellung in der Klemmstellung,
• 7 die Leiteranschlussklemme gemäß 6 in der Offenstellung,
• 8 die Leiteranschlussklemme gemäß 6 mit eingestecktem elektrischen Leiter,
• 9 eine Klemmfeder in perspektivischer Ansicht,
• 10 eine Stromschiene in perspektivischer Ansicht,
• 11 ein kombiniertes Halte-Löse-Element in perspektivischer Ansicht.

They show

• 1 a conductor terminal block in a side sectional view in the clamping position,
• 2 the conductor terminal according to 1 in the open position,
• 3 a driver in a first embodiment in perspective view,
• 4 a driver in a second embodiment in perspective view,
• 5 another embodiment of a conductor terminal block in a lateral sectional view in the clamping position,
• 6 another embodiment of a conductor terminal block in a lateral sectional view in the clamping position,
• 7 the conductor terminal according to 6 in the open position,
• 8 the conductor terminal according to 6 with electrical conductor plugged in,
• 9 a clamping spring in perspective view,
• 10 a power rail in perspective view,
• 11 a combined holding and releasing element in perspective view.

The 1 Figure 1 shows a conductor terminal 1 which has an insulating housing 2. The insulating housing 2 has a conductor entry opening 20 on one conductor entry side, through which an electrical conductor can be inserted into the insulating housing 1 in a conductor entry direction L and clamped to a spring-loaded terminal.

A spring-loaded clamping connection is visible in the insulating housing 2, comprising a clamping spring 4 and a busbar 3. The clamping spring 4 has a support section 41, via which the clamping spring 4 is supported on the busbar 3. The clamping spring 4 also has a clamping leg 43 branching off from the support section 41 at an acute angle. The clamping leg 43 extends to a free end at which the clamping leg 43 has a Clamping edge 46 for clamping the electrical conductor. In the 1 In the clamping position shown, the clamping leg 43 with the clamping edge 46 rests against a contact section 31 of the busbar 3 when no electrical conductor is inserted. An electrical conductor can be clamped between the clamping leg 43 or the clamping edge 46 and the contact section 31 at a clamping point 30.

The support section 41 extends from a base section 40, from which the clamping leg 43 branches off, to a connecting section 42 arranged at an angle to it. The connecting section 42 transitions into a fastening section 44 arranged at an angle to the connecting section 42. The fastening section 44 engages behind the busbar 3, i.e., it rests against the back of the busbar 3 on a side facing away from the clamping point 30.

The conductor connection terminal 1 has a mechanism for moving the clamping leg 43 from the clamping position to the open position, which is in 2 The mechanism includes a driver 6, which can be formed integrally with the clamping spring 4 or, as illustrated in the illustrated embodiment, can be formed as a separate component from the clamping spring 4 and accordingly be attached to the clamping spring 4, in particular to the clamping arm 43. In the illustrated embodiment, the driver 6 has hook-shaped fixing elements 62 by means of which it is attached to a mounting point 63 on the clamping arm 43. From the mounting point 63, the driver 6 extends via at least one connecting arm 61 to a deflection surface 60 of the driver 6, wherein the deflection surface 60 is preferably arranged or aligned orthogonally to the connecting arm 61. By means of the driver 6, the clamping arm 43 can be moved from the clamping position to the open position by an actuating force B exerted on the deflection surface 60 opposite to the conductor insertion direction L. The actuating force B can be transmitted to the deflection surface 60 via an actuating opening 23 or an actuating channel 22 in the insulating housing 2, for example, by means of a tool inserted into the actuating channel 22. The actuating force B transmitted to the deflection surface 60 moves the clamping leg 43 away from the contact section 31 until it is in the 2 The disclosure shown is located there.

The conductor terminal 1 also has a retaining element 5 by which the clamping leg 43 can be held in the open position. The retaining element 5 has a locking element 50 which can engage with a corresponding locking element on the clamping leg 43 in the open position. The clamping leg 43 cannot then easily move back into the clamped position. The locking element formed on the clamping leg 43 can, for example, be formed by the clamping edge 46, as illustrated in the figures. However, at least one separate locking element can also be formed on the clamping leg 43, for example, in the form of a projecting locking tab, which can then be engaged with the locking element 50. The locking element 5 can be fixed to the clamping spring 4 by being held between the busbar 3 and the mounting section 44.

The conductor terminal 1 also has a release element 8, which serves to release the locking mechanism of the clamping leg 43 on the retaining element 5. In this case, the release element 8 is integrally formed with the retaining element 5 to form a combined retaining-release element 5, 8, which will be explained in more detail below. The release element 8 has a release section 80, which can be actuated by the inserted electrical conductor. If an electrical conductor exerts a compressive force on the release section 80, the retaining element 5 with the locking element 50 is thereby displaced slightly towards a rear housing wall 21 of the insulating housing 2 until the clamping leg 43 can release from the locking element 50. The clamping leg 43 then springs out until it rests against the inserted electrical conductor and presses it against the contact section 31.

The 3 Figure 1 shows a first embodiment of a driver 6. In this embodiment, a connecting arm 61 branches off approximately at right angles from the deflection surface 60 on both opposite sides. Each connecting arm 61 has a fixing element 62 for fixing it to the clamping leg 43. The clamping leg 43 can, for example, have widened lateral sections that project beyond the clamping edge 46 in the width direction. The fixing elements 62 can be hooked onto these lateral sections to attach the driver 6 to the clamping leg 43.

The 4 shows a second embodiment of a driver 6, in which the deflection surface 60 is not as clearly defined as in the embodiment of the 3 Rather, the deflection surface 60 is formed by an extended section of a central connecting arm 61. The deflection surface 60 then also projects into an area of the insulating housing where it can be actuated by a tool or other element. As can be seen in 4 If it can still be recognized, the central connecting arm can have 61 stiffening elements in the longitudinal direction to increase the area moment of inertia.

The 5 shows a conductor connection terminal 1, which is comparable to the embodiment of the 1 is. Unlike the 1 is at the conductor terminal according to 5 a driver 6 according to 4 installed. This driver 6 can be used in a manner comparable to the embodiment of the 1 The clamping leg 43 deflects into the open position. It can be seen that a bend or arc is arranged within the deflection surface 60, which is supported on the side of the clamping leg 43 facing away from the busbar 3, so that the free end of the deflection surface 60 is oriented away from the clamping leg 43 and projects into the actuating channel 22. Furthermore, the conductor connection terminal 1 has the following features: 5 also a combined holding-release element 5, 8, analogous to the embodiment of the 1 .

The 6 Figure 1 shows a further embodiment of a conductor terminal 1, in which a driver 6 with a deflection surface 60 is also present, but which, unlike the embodiments described above, is not a separate component but is formed integrally with the clamping spring 4, in particular as an extension of the clamping leg 43 at the end facing away from the clamping edge 46. It can be seen that the deflection surface 60 is similar to that in the embodiment of the 5 extends into an area where an actuating tool or a permanently installed push button 7, as in 6 As shown, pressure can be applied to the deflection surface 60 to move the clamping leg 43 into the open position. The in 6 The illustrated push button 7 can have an externally accessible actuation surface 70 on which the actuation force B can be applied.

The embodiment of the 6 This embodiment differs from the previously described embodiments in that a pivot bearing 33 is additionally provided to support the pivoting movement of the clamping arm 43 into the open position. The clamping arm 43 can rest on this pivoting bearing during this movement. This allows the actuating force B applied by the tool or push button 7 to be converted even more efficiently into the pivoting movement of the clamping arm 43. The pivot bearing 33 can, for example, be connected to the busbar 3 via a support section 32 or be integrally formed with the busbar 3. This arrangement prevents the clamping spring 4, and in particular the clamping arm 43 and/or the base section 40, from being displaced excessively towards the busbar 3 during actuation.

The 7 The conductor terminal terminal shows according to 6 When the push button 7 is actuated, the clamping arm 43 is moved or pivoted into the open position and locked onto the detent element 50. When the actuation of the push button 7 is discontinued, the clamping arm 43 remains in the open position due to the detent on the retaining element 5.

The 8 The conductor terminal terminal shows according to 6 With the electrical conductor 9 inserted, it can be seen that the free end of the electrical conductor 9 presses against the release section 80, deflecting it slightly towards the rear housing wall 21 or pivoting the release section 80 slightly. This deflection is transmitted to the retaining element 5 with the locking element 50. This causes the clamping leg 43 to release from the locking element 50 and spring back, pressing the electrical conductor 9 against the contact section 31.

The embodiment of the 6 to 8 with the additional swivel bearing 33, it is also possible in the embodiments of the 1 to 5 to be realized.

The 9 Figure 4 shows an example of a clamping spring 4 in which two clamping legs 43 are implemented in a single-piece assembly. The clamping spring 4 is thus suitable for two adjacent spring-clamp terminals. The clamping spring 4 can be used with all previously described conductor terminals. The various sections of the support section 41 are visible, namely the base section 40, the connecting section 42, and the fastening section 44. Also visible are molded-on receptacles 47 on the connecting section 42, which serve to receive and support the retaining element 5, as will be explained below. Between two connecting sections 42 of a spring-clamp terminal, a tab 48 extends from the fastening section 44 of the clamping spring 4, which serves to fasten the retaining element 5, as will be explained below.

The 10 Figure 3 shows a busbar 3 which offers two adjacent receiving points for electrical conductors at its contact section 31 and is therefore suitable for the in 9 The clamping spring 4 shown is suitable for realizing two adjacent spring-clamp connections. Each spring-clamp connection has its own pivot bearing element 33, which is connected to the contact section 31 via support sections 32. The respective pivot bearing element 33, with its two support sections 32, forms a kind of frame through which the electrical conductor to be connected can be inserted.

Mounting brackets 34 for holding the combined holding-release element 5, 8 can be integrally formed on the busbar 3, in particular on the area facing away from the swivel bearing elements 33.

By appropriately adapting the components (clamping spring 4, busbar 3, insulating housing 2) the conductor terminal 1 can also be designed for more than two spring clamp connections.

The 11 Figure 1 shows a combined holding-release element 5, 8, which can be used with the conductor connection terminals described above. The holding-release element 5, 8 has a holding element 5, which is formed with the aforementioned locking element 50 at its free end. The area of the holding element 5 formed with the locking element 50 has positive-locking connecting elements 51, which can be inserted into the receiving elements 47 of the support section 41. This allows the locking element 50 to be supported against the spring force exerted by the clamping leg 43 in the open position on the support section 41, in particular on the connecting section 42. The holding element 5 transitions via upper longitudinal sections 52 into the release element 8, on which the release section 80 is arranged. The release section 80 is connected on its opposite side via lower longitudinal sections 53 to a fastening section 54 of the retaining-release element 5, 8, which can be hooked into one of the brackets 34 on the busbar 3 and/or tabs 48 of the clamping spring 4. This fixes the entire retaining-release element 5, 8 to the busbar 3.

When the release section 80 is subjected to force by the electrical conductor 9, the lower part of the retaining-release element 5, 8, which is attached to the bracket 34 via the fastening section 54, is fixed and cannot be deflected. Accordingly, only the upper part of the retaining-release element 5, 8 with the locking element 50 is deflected by the inserted electrical conductor 9 and the release section 80.

One can recognize in the 7 Furthermore, the combined retaining-release element 5, 8 in the area of the upper longitudinal sections 52 can be designed as a continuous sheet metal part, but can have a first recess 55 between the upper longitudinal sections 52. Similarly, the combined retaining-release element 5, 8 in the area of the lower longitudinal sections 53 can be designed as a continuous sheet metal part, but can have a second recess 56 between the lower longitudinal sections 53. The first and/or second recess 55, 56 increases the elasticity of the retaining-release element 5, 8, thereby reducing the required release forces that must be applied to the release section 80 by the inserted electrical conductor 9. Another advantage of the first and/or second recess 55, 56 is that a viewing window is provided through which it can be visually checked whether the electrical conductor 9 is inserted sufficiently far into the insulating housing 2, at least if a transparent housing material is used in this area.

Reference symbol list:

1

conductor connection terminal

2

Insulating housing

3

busbar

4

Clamping spring

5

retaining element

6

drive

7

Push button

8

Solvent

9

electrical conductor

20

conductor entry opening

21

rear case wall

22

Actuating channel

23

Actuating opening

30

Clamping point

31

Contact section

32

Support section

33

swivel bearing

34

bracket

40

Basic section

41

Support section

42

Connection section

43

Clamping leg

44

Fastening section

46

Clamping edge

47

Recording

48

tab

50

Latching element

51

Connecting element

52

upper longitudinal section

53

lower longitudinal section

54

Fastening section

55

first recess

56

second recess

60

Deflection surface

61

Connecting arm

62

Fixing element

63

Mounting point

70

Operating area

80

Solution section

B

Actuating force

L

ladder insertion direction

QUOTES INCLUDED IN THE DESCRIPTION

This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions.

Cited patent literature

• DE 10 2020 119 372 A1 [0002]

Claims (17)

A conductor terminal (1) with an insulating housing (2) having at least one conductor entry opening (20) for receiving an electrical conductor (9) in a conductor entry direction (L), wherein at least one spring-loaded clamping connection for connecting an electrical conductor (9) by means of spring force is arranged in the insulating housing (2), wherein the spring-loaded clamping connection has at least one busbar (3) and a clamping spring (4) having a clamping leg (43) with a clamping edge (46) for clamping an electrical conductor (9) at a clamping point (30) on a contact section (31) of the busbar (3), characterized in that a driver (6) is arranged on the clamping leg (43), which has a deflection surface (60) projecting from the clamping leg (43) on the side of the clamping leg (43) facing away from the contact section (31) for deflecting the clamping leg (43), wherein the clamping leg (43) is guided by a The conductor insertion direction (L) can be moved from a clamping position to an open position by the actuating force (B) exerted on the deflection surface (60) by the direction of actuation (L). conductor terminal block according to Claim 1 , characterized in that the driver (6) is formed integrally with the clamping leg (43) or the driver (6) is designed as a component separate from the clamping spring (4) which is attached to the clamping leg (43). Conductor terminal according to one of the preceding claims, characterized in that the driver (6) is fixed at a fastening point (63) on the clamping leg (43) at least against forces acting against the conductor insertion direction (L), wherein at least one connecting arm (61) of the driver (6) extends from the fastening point (63) against the conductor insertion direction (L) to the deflection surface (60). conductor terminal block according to Claim 3 , characterized in that the at least one connecting arm (61) is arranged orthogonally to the planar extension of the clamping leg (43) and/or orthogonally to the planar extension of the deflection surface (60). conductor terminal block according to Claim 3 , characterized in that the at least one connecting arm (61) is arranged parallel or at an acute angle to the planar extension of the clamping leg (43). conductor terminal according to one of the Claims 3 until 5 , characterized in that the at least one connecting arm (61) has a higher area moment of inertia in the longitudinal direction of the clamping leg (43) than the clamping leg (43). Conductor terminal according to one of the preceding claims, characterized in that a pivot bearing (33) is arranged on the side of the clamping leg (43) facing away from the deflection surface (60), on which the clamping leg (43) can be pivotably supported when the deflection surface (60) is actuated, in order to support the pivoting movement of the clamping leg (43) into the open position. Conductor terminal according to one of the preceding claims, characterized in that the insulating housing (2) has at least one actuating channel (22) in which an actuating tool which is not part of the conductor terminal (1) or a push button (7) designed as part of the conductor terminal (1) can be arranged for actuating the clamping leg (43). conductor terminal block according to Claim 8 , characterized in that the deflection surface (60) projects into the actuating channel (22) or at least into a housing section of the insulating housing (2) which is arranged in extension of the actuating channel (22). conductor terminal according to one of the Claims 8 until 9 , characterized in that the actuating channel (22) is accessible via an actuating opening (23) of the insulating housing (2), which is arranged on a housing side (21) facing away from the conductor entry opening (20). Conductor terminal according to one of the preceding claims, characterized in that the conductor terminal (1) has a retaining element (5) which is designed to hold the clamping leg (43) in the open position. conductor terminal block according to Claim 11 , characterized in that the retaining element (5) is arranged behind the clamping point (30) or behind the predominant part of the busbar (3) in the conductor insertion direction (L). Conductor terminal according to one of the preceding claims, characterized in that the spring-loaded clamping connection has a release element (8) by actuation of which the retaining element (5) can be deflected to such an extent that the clamping leg (43) held on the retaining element (5) is released from the retaining element (5). conductor terminal block according to Claim 13 characterized by the fact that the open The clamping leg (43) held in position on the holding element (5) can be released from the holding element (5) if an electrical conductor (9) to be clamped exerts an actuating force (B) on a release section (80) of the release element. Conductor terminal according to one of the preceding claims, characterized in that the retaining element (5) or a retaining-release element (5, 8) combined with the release element (8) has at least one first and/or one second recess (55, 56) which is designed as a viewing window for an inserted electrical conductor (9), wherein the insulating housing (2) is made of a transparent material at least in the area of the viewing window. Conductor terminal according to one of the preceding claims, characterized in that the clamping spring (4) has a support section (41) which is designed to support the clamping spring (4) on the busbar (3). conductor terminal block according to Claim 16 , characterized in that the support section (41) has a base section (40) and a fastening section (44), wherein the clamping leg (43) branches off from the base section (40) and the support section (41) with its fastening section (44) engages behind the busbar (3), so that the busbar (3) rests on the fastening section (44) and is at least partially arranged between the base section (40) and the fastening section (44).