DE102025119428A1 - 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, wherein the conductor terminal has at least one actuating push button by which, when a manual actuating surface of the actuating push button is pressed, the clamping leg can be moved into an open position.

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, wherein the conductor terminal has at least one actuating push button by which, when a manual actuating surface of the actuating push button is pressed, the clamping leg can be moved into an open position.

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 task is accomplished by a conductor terminal according to claim 1 and a conductor terminal according to claim 5.

In a variant with feature a), the conductor terminal is designed as a multi-pole conductor terminal with several spring-clamp connections, wherein the actuating push button is designed to deflect several or all clamping legs of the spring-clamp connections into the open position when the manual actuating surface is actuated manually.

In a variant with feature b), the actuating push button has at least one pressure section projecting through a housing opening of the insulating housing and extending to the clamping leg, which is designed to transmit a pressure force acting essentially perpendicular to the conductor insertion direction to the clamping leg.

In a variant with feature c), the conductor terminal has at least one locking pawl which can be manually set by the user to either a locked position or an unlocked position, wherein in the locked position the movement of the clamping leg into the open position by means of the actuating push button is prevented by the locking pawl and in the unlocked position the movement of the clamping leg into the open position by means of the actuating push button is possible.

All of these variants a) to c) can be combined with each other and with one or more of the advantageous embodiments of the invention explained below.

In this way, a well-known and proven conductor terminal block, which is designed without an actuating element for deflecting the clamping leg, can be further developed into a conductor terminal block with an actuating element for the clamping leg with minimal effort and without a complete redesign.

According to feature a), the conductor terminal is designed as a multi-pole conductor terminal with several spring-clamp terminals. Each spring-clamp terminal is designed according to the preamble of claim 1, i.e., with at least one clamping spring and a busbar. The busbar can be a continuous busbar extending over several or all spring-clamp terminals, so that not every clamping spring necessarily needs to be assigned a separate, individual busbar, but rather a section of the continuous busbar. Advantageously, the actuating push button is designed to deflect several or all clamping arms when manually actuated. This facilitates the movement of the clamping arms into the open position in multi-pole conductor terminals. Furthermore, the actuating push button can be designed with a relatively large actuation surface, which is again advantageous for manual actuation in miniaturized conductor terminals. Such an actuating push button enables reliable and safe actuation of the clamping arms for the user. In contrast to conductor terminals with tool actuation, the risk of injury can be significantly reduced.

The actuator can, for example, perform a linear actuation movement or a slight pivoting movement when manually actuated, or a combination of such movements. In the fully actuated state, an actuation section of the actuator, which includes the manual actuation surface, can rest against the outside of the insulating housing.

The pressure section according to feature b) can extend, for example, from the manual actuation surface located outside the insulating housing through the housing opening, e.g., in a direction transverse or substantially perpendicular to the conductor entry direction. This allows for short actuation paths and a relatively short overall pressure section. Accordingly, the pressure section does not need to be excessively robust but can be relatively slim and, for example, run laterally alongside the receiving space provided for the electrical conductor to be connected. The actuating push button can have a single pressure section for actuating one clamping arm. It is also possible, for example, to provide two pressure sections for actuating one clamping arm, e.g., one each at the left and right edges of the clamping arm.

The housing opening through which the pressure section extends can be located on a housing side of the insulating housing that is not the conductor entry side, i.e., not the housing side where the conductor entry opening is located. Advantageously, the housing opening can be located on a housing side that connects the housing side with the conductor entry opening to a rear housing side of the insulating housing. The rear housing side is the housing side that is opposite the conductor entry side in the conductor entry direction.

According to feature c), the aforementioned locking pawl is present. This provides additional security for the conductor terminal against unintentional actuation of the operating button. The user must first manually move the locking pawl into the unlocked position; only then can the operating button be actuated sufficiently to move the clamping arm(s) into the open position. The locking pawl can thus be a manually actuated component of the conductor terminal. For example, the user can manually move the locking pawl into the unlocked position. Resetting the locking pawl to the locked position can also be performed manually by the user and/or automatically, for example, by means of a spring element. This has the advantage that automatic locking occurs when the operating button is released, thus minimizing the risk of incorrect operation. This results in an increased level of safety.

According to an advantageous embodiment of the invention, the pressure section extends transversely through a conductor entry channel of the conductor terminal extending in the conductor entry direction and/or intersects with an electrical conductor connected in the conductor terminal. This allows for particularly efficient routing of the pressure section through the insulating housing. To avoid obstruction of the electrical conductor being inserted, it is advantageous to route the pressure section along the edge or outside the area of the conductor entry channel.

According to an advantageous embodiment of the invention, the locking pawl is resiliently mounted by means of at least one spring element that is biased in the direction of the locking position. This ensures that the locking pawl does not inadvertently move into the unlocking position, e.g., due to vibrations acting on the conductor terminal. The locking pawl can, for example, be designed as a plastic component. In an advantageous embodiment, the at least one spring element can be integrally molded onto this plastic component.

According to an advantageous embodiment of the invention, the actuating push button is designed as a push-button cap, which is configured to overlap the insulating housing on the outside like a cap. This cap shape allows the actuating push button to provide a relatively large manual actuation area. This, in turn, facilitates easy manual actuation of the actuating push button in a miniaturized embodiment of the conductor terminal. Furthermore, the cap shape of the actuating push button advantageously covers the housing openings for the passage of the pressure sections, thus ensuring that the required clearances and creepage distances are maintained.

According to an advantageous embodiment of the invention, the push-button cap has a fastening element which, when the push-button cap is attached to the insulating housing, is located on the side of the insulating housing facing away from the manual actuation surface. The fastening element can additionally form a pivot axis for a pivoting movement of the push-button cap.

According to an advantageous embodiment of the invention, the manual actuation surface extends over a surface area of a housing side of the insulating housing, which is at least twice as large as the area covered by the actuation button of at least one housing opening of the insulating housing through which the at least one pressure section projects. In particular, the manual actuation surface can extend over a surface area of a housing side of the insulating housing. The clearance should extend at least five or at least ten times the area covered by the actuating button of the at least one housing opening. This also facilitates compliance with the required clearance and creepage distances.

According to an advantageous embodiment of the invention, the manual actuation area extends over a surface area of one housing side of the insulating housing that is greater than 25% of the total surface area of that housing side. Accordingly, a relatively large manual actuation area is provided. The proportion of the manual actuation area can also be greater than 35% of the total surface area of that housing side.

According to an advantageous embodiment of the invention, the actuating stroke of the actuating element for moving the clamping arm from the clamping position to the open position is less than 50% of the distance traveled by the clamping edge of the clamping arm during the movement from the clamping position to the open position. Accordingly, the actuating push button is designed as a relatively short-stroke actuating element. In a further advantageous embodiment, the actuating stroke can be less than 35% of the distance traveled by the clamping edge of the clamping arm.

If the actuating push button is actuated with a pivoting movement, it can be said that the actuation angle of the actuating element for moving the clamping arm from the clamping position to the open position is less than 50% of the angle traversed by the clamping arm during the movement from the clamping position to the open position. In a further advantageous embodiment, the actuation angle can be less than 35% of the pivoting angle of the clamping arm.

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-loaded terminals and conductor terminals of various designs. In particular, proven conductor terminals of known design can thus be easily upgraded to include an automatic release function, i.e., automatic connection of the electrical conductor to be clamped.

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 actuating lever allows the clamping arm to be moved into the open position by manual operation, against the spring force of the clamping spring. In this open position, the clamping arm can then be held by the retaining element, even without further manual actuation of the actuating lever, 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 direction of conductor entry 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 integrated into the component or assembly of the spring-clamp connection that includes the retaining element. This minimizes the design and assembly effort for the spring-clamp connection. In particular, only one component or assembly is required for mounting the release element and the retaining element, rather than two separate components or assemblies. For example, the release element can be integrally formed with the retaining element. The component or assembly can be made of, for example, plastic or metal, or a combination of such 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 for guiding the electrical conductor to be clamped to the contact section can be formed in the insulating material housing, 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 is arranged in extension of the conductor entry 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". Angles are given in degrees. These measurements refer to a circular dimension 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 Betätigungsdrücker in perspektivischer Ansicht,
• 4 eine Sperrklinke in perspektivischer Ansicht,
• 5 die Leiteranschlussklemme bei in der Sperrstellung befindlicher Sperrklinke,
• 6 die Leiteranschlussklemme bei in der Entriegelungsstellung befindlicher Sperrklinke,
• 7 eine Klemmfeder in perspektivischer Ansicht,
• 8 eine Stromschiene in perspektivischer Ansicht,
• 9 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 push button in perspective view,
• 4 a locking latch in perspective view,
• 5 the conductor terminal with the locking pawl in the locked position,
• 6 the conductor terminal with the locking pawl in the unlocked position,
• 7 a clamping spring in perspective view,
• 8 a power rail in perspective view,
• 9 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 a conductor entry side 24, 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.

As can be seen, the conductor terminal 1 has an actuating push button 6 attached to the outside of the insulating housing 2. The actuating push button 6 has a manual actuating surface 60 arranged on a second longitudinal side 23 of the insulating housing 2, which connects the conductor entry side 24 with the rear housing side 21. This manual actuating surface 60 serves to manually actuate the actuating push button 6. At least one pressure section 61 projects from the manual actuating surface 60 through an opening in the second longitudinal side 23 of the housing. The pressure section 61 extends to the clamping leg 43. It can be seen that, in the unactuated state of the actuating push button 6, the manual actuating surface 60 does not rest against the second longitudinal side 23 of the housing, but rather forms a certain gap with it or is arranged at a certain angle to it. The actuating lever 6 extends on both sides and outside the insulating housing 2 to one of the first longitudinal sides 22 of the insulating housing 2 opposite the second longitudinal side 23, where the actuating lever 6 has a fastening element 62. The actuating lever 6 is engaged in a recess on the outside of the insulating housing 2 by means of the fastening element 62. The fastening element 62 also forms a pivot axis during actuation of the actuating lever 6, and the fastening element 62 can be rod-shaped and can connect two side walls 63 projecting substantially perpendicularly from the fastening surface 60.

It is further evident that the conductor terminal has a locking device 7. The locking device 7 has a pawl 71 which is movably mounted in a bearing element 70, e.g., in a linearly displaceable manner. The pawl 71 has a manual actuation section 75 on one side of the bearing element 70, which serves for manual actuation of the pawl 71 and simultaneously forms a travel limiter for the pawl 71 during displacement. On the other side of the bearing element 70, the pawl has a travel limiter 72, which forms a travel limiter for movement of the pawl 71 towards the unlocked position. 1 The pawl 71 is shown in a locked position, in which a The end region of the locking pawl 71, facing the manual actuation surface 60, is arranged between the insulating housing 2 and the manual actuation surface 60. Complete manual actuation of the actuating push button 6 and the associated deflection of the clamping arm 43 are thus prevented by the locking pawl 71.

The 2 Figure 1 shows an operating state of the conductor connection terminal 1 in which the locking pawl 71 has been moved into an unlocked position, in which the locking pawl 71 is no longer located between the insulating housing 2 and the manual actuating surface 60. Accordingly, in this state, the actuating push button 6 can be fully actuated manually by applying a pressure force to the manual actuating surface 60. This causes the manual actuating surface 60 to pivot about the fastening element 62, as shown in Figure 2. 2 The clamping element 62 is recognizable until it abuts the surface of the second longitudinal side 23 of the housing. The pressure section 61 transmits a pressure force to the clamping leg 43, thereby moving the clamping leg 43 into the open position. The arrangement of the fastening element 62 on the first longitudinal side 22 of the housing, near the conductor entry side 24, results in advantageous leverage ratios, thus minimizing the actuating forces.

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. In the open position, the clamping leg 43 can, for example, be engaged with its clamping edge 46 on the locking element 50 of the retaining element 5 and thus be held in the open position, even when the actuating push button 6 is no longer actuated. 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 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 6 shows the actuating push button 6 as a single component. It is evident that the actuating push button 6 is cap-shaped. Side walls 63 project from both sides of the manual actuating surface 60, extending essentially at right angles to the manual actuating surface 60. The actuating push button 6 surrounds the insulating housing 2 with its side walls 63. The space between the manual actuating surface 60 and the fastening element 62, which connects the two side walls 63, is open. It can be seen that several pressure sections 61 project from the manual actuating surface 60. Each pressure section 61 can actuate a clamping spring 4. It is also possible that a pair of pressure sections 61 actuates a clamping spring 4. Alternatively, it is conceivable that one pressure section 61 actuates two adjacent clamping springs 4.

The 4 Figure 71 shows further details of the pawl. It is particularly evident that the pawl 71 has at least one spring element 74, wherein the 4 Figure 1 shows an embodiment with two spring elements 74 arranged on opposite sides. The at least one spring element 74 provides spring bias to the pawl 71 in the installed position within the bearing element 70, in the direction of the locking position. As can be seen, the spring elements 74 can be integrally formed laterally on a main body 73 of the pawl 71. The spring elements 74 interact with the bearing element 70. When the pawl 71 is moved into the unlocked position, the spring elements 74 are at least partially displaced into the interior of the bearing element 70 and thereby deflected towards the main body 73.

The 5 Figure 1 shows the conductor connection terminal 1 with the locking pawl 71 in the locked position. It can be seen that the spring elements 74 are largely extended and their spring preload acts against the bearing element 70. In the 6 The pawl 71 is moved into the unlocked position. The spring elements 74 are now partially arranged within the bearing element 70, causing the spring elements 74 to pivot towards the main body 73. Depending on the design of the spring elements 74, various return-to-position mechanisms are possible. The locking pawl 71 can be moved into the locked position. In a first variant, the spring elements 74 do not cause the locking pawl 71 to automatically return to the locked position when in the unlocked position. Manual resetting is required.

In a second variant, the spring elements 74 in the unlocking position cause the locking pawl 71 to automatically return to the locked position when the locking pawl is released.

The 7 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-loaded clamping connections. The clamping spring 4 can be used with all previously described conductor connection 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 the molded-on receptacles 47 on the connecting section 42, which serve to receive and support the retaining element 5, as will be explained below.

The 8 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 7 The clamping spring 4 shown is suitable for realizing two adjacent spring-loaded clamping connections. Mounting brackets 34 for holding the combined retaining-releasing element 5, 8 can be integrally formed on the busbar 3.

The 9 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. 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 9 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

Actuator

7

Locking device

8

Solvent

20

conductor entry opening

21

rear of the case

22

first long side of the case

23

second long side of the case

24

conductor entry side

30

Clamping point

31

Contact section

34

bracket

40

Basic section

41

Support section

42

Connection section

43

Clamping leg

44

Fastening section

46

Clamping edge

47

Recording

50

Latching element

51

Connecting element

52

upper longitudinal section

53

lower longitudinal section

54

Fastening section

55

first recess

56

second recess

60

manual operating surface

61

Print section

62

Fastener

63

side wall

70

bearing element

71

Locking pawl

72

Path boundary element

73

Main body

74

spring element

75

manual actuation section

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 (12)

A conductor terminal (1) with an insulating housing (2) having at least one conductor entry opening (20) for receiving an electrical conductor in a conductor entry direction (L), wherein at least one spring-loaded clamping connection for connecting an electrical conductor 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 at a clamping point on a contact section (31) of the busbar (3), wherein the conductor terminal (1) has at least one actuating push button (86) by which, upon manual actuation of a manual actuating surface (60) of the actuating push button (6), the clamping leg (43) can be moved into an open position, wherein a) the conductor terminal (1) is designed as a multi-pole conductor terminal with several spring-loaded clamping connections, wherein the actuating push button (6) is designed to deflect several or all clamping legs (43) of the spring-loaded clamping connections are set in the open position when the manual actuating surface (60) is actuated manually, and/or b) the actuating push button (6) has at least one pressure section (61) projecting through a housing opening of the insulating housing (2) and extending to the clamping leg (43), which is set up to transmit a pressure force acting substantially perpendicular to the conductor insertion direction (L) to the clamping leg (43), characterized in that the conductor connection terminal (1) has a retaining element (5) which is set up to hold the clamping leg (43) in the open position, and the conductor connection terminal (1) has a release element by the 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 1 , characterized in that the pressure section (61) extends transversely through a conductor entry channel (22) of the conductor terminal (1) extending in the conductor entry direction (L) and/or intersects with an electrical conductor connected in the conductor terminal (1). conductor terminal according to one of the Claims 1 until 2 , characterized in that the retaining element is arranged in the insertion direction of the electrical conductor into the spring-loaded clamping connection behind the clamping point or behind the predominant part of the busbar. conductor terminal according to one of the Claims 1 until 3 , characterized in that the clamping leg (43) held in the open position on the holding element (5) can be released from the holding element (5) when an electrical conductor to be clamped exerts an actuating force on a release section (80) of the release element. A conductor terminal (1) with an insulating housing (2) having at least one conductor entry opening (20) for receiving an electrical conductor in a conductor entry direction (L), wherein at least one spring-loaded clamping connection for connecting an electrical conductor 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 at a clamping point on a contact section (31) of the busbar (3), wherein the conductor terminal (1) has at least one actuating push button (86) by which, when a manual actuating surface (60) of the actuating push button (6) is manually actuated, the clamping leg (43) can be moved into an open position, characterized in that the conductor terminal (1) has at least one locking pawl (71) which can be selectively set into a locked position or into an unlocked position. wherein in the locked position the movement of the clamping arm (43) into the open position by means of the actuating push button (6) is prevented by the locking pawl (71) and in the unlocked position the movement of the clamping arm (43) into the open position by means of the actuating push button (6) is possible. conductor terminal block according to Claim 5 , characterized in that the pawl (71) is resiliently mounted by means of at least one spring element (74) which is biased in the direction of the locking position. Conductor terminal according to one of the preceding claims, characterized in that the actuating push button (6) is designed as a push button cap which is arranged to overlap the insulating housing (2) on the outside in the manner of a cap. conductor terminal block according to Claim 7 , characterized in that the push-button cap has a fastening element (62) which, in the state of the push-button cap being attached to the insulating housing (2), rests on the surface of the manual actuation surface (60) is arranged on the side of the insulating housing (2) facing away from the surface. Conductor terminal according to one of the preceding claims, characterized in that the manual actuation surface (60) extends over a surface area of a housing side of the insulating housing (2) which is greater than 25% of the total surface area of this housing side. Conductor terminal according to one of the preceding claims, characterized in that the actuating stroke of the actuating element (6) for transferring the clamping leg (43) from the clamping position to the open position is less than 50% of the distance traveled by the clamping edge (46) of the clamping leg (43) during the movement from the clamping position to the open position. 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 11 , 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).