terminal block

Abstract

This invention relates to a terminal block having an insulating material housing having at least one wire introduction opening for receiving an electrical wire in a wire introduction direction, wherein at least one spring-force clamping connector for clamping the electrical wire by means of a spring force is provided in the insulating material housing, the spring-force clamping connector having at least one busbar and a clamping spring, the busbar having a contact section, wherein the clamping spring is configured as a cage-type tension spring and has a support leg and a clamping leg with a window-like opening, the support leg for supporting the clamping spring relative to the spring force of the clamping leg, wherein the support leg and / or the busbar extends through the window-like opening of the clamping leg, wherein the clamping leg can move back and forth at least between an open position and a clamped position, wherein in the clamped position, the introduced electrical wire can be fixedly clamped at the contact section by means of the clamping leg.

Description

Technical Field

[0001] This invention relates to a terminal block having an insulating material housing having at least one wire introduction opening for receiving an electrical wire in a wire introduction direction, wherein at least one spring-force clamping connector for clamping the electrical wire by means of a spring force is provided in the insulating material housing, the spring-force clamping connector having at least one busbar and a clamping spring, the busbar having a contact section, wherein the clamping spring is configured as a cage-type tension spring and has a support leg and a clamping leg with a window-like opening, the support leg for supporting the clamping spring relative to the spring force of the clamping leg, wherein the support leg and / or the busbar extends through the window-like opening of the clamping leg, wherein the clamping leg can move back and forth at least between an open position and a clamped position, wherein in the clamped position, the introduced electrical wire can be fixedly clamped at the contact section by means of the clamping leg. Background Technology

[0002] Such a terminal block is known from DE 10 2020 119 372 A1. This relates to a terminal block that automatically connects to the wire to be clamped when the wire is inserted into it. Upon insertion of the wire, the clamping legs of the clamping spring, which are held in the open position, automatically release, thereby causing the wire to be firmly clamped. Summary of the Invention

[0003] Therefore, the purpose of this invention is to propose a further improved terminal block.

[0004] The objective is achieved in the type of terminal block mentioned at the beginning by the following manner: the clamping leg, in the region of the window-shaped opening, begins from the first connecting section of the clamping spring that connects the clamping leg to the spring bow, first transitions to a first arched section away from the spring bow arch, and then transitions to a second arched section that is opposite to the arch of the first arched section. In this manner, the clamping leg can be designed with special spring characteristics, particularly with an embodiment that is relatively flexible in the direction of wire introduction. This is achieved by at least two opposing arched sections, the first and second arched sections forming an S-shape at the clamping leg in a side view. This flexible design is advantageous, for example, when the terminal block is to be equipped with an automatic wire connection function, as will be explained below. According to the invention, not only the first arched section but also the second arched section is located in the region of the window-shaped opening, i.e., before the transverse tab for fixing the clamping wire at the boundary window-shaped opening.

[0005] The clamping legs, together with the contact section of the busbar, form a clamping portion for clamping the electrical conductor between the clamping legs and the contact section. In the open position, at least one clamping edge of the clamping leg pivots away from the contact section of the busbar. The clamping legs, for example, can pivot between an open position and a clamped position, in which the electrical conductor can move freely between the clamping legs and the contact section, and in which the clamping position the clamping legs clamp the electrical conductor at the contact section.

[0006] According to an advantageous design of the invention, at least one first locking element is formed at the clamping leg, the first locking element being configured to engage with at least one second locking element formed at the busbar or support leg in the open position, thereby holding the clamping leg in the open position. In this manner, a terminal block with a retention function for permanently holding the clamping leg in the open position can be configured, that is, the clamping leg is also held in the open position without requiring persistent manual operation by the user. Reliable holding of the clamping leg in the open position is achieved by at least one second locking element associated with the first locking element, and easy release of the lock when needed to move the clamping leg to the clamping position. Therefore, advantageously, the clamping leg can be locked at the busbar or support leg such that the spring holding force present in the locked state does not act on the insulating housing.

[0007] At least one first locking element may be configured as a locking protrusion, a locking edge, or a locking recess, for example. A second locking element may be configured as a locking protrusion, a locking edge, or a locking recess, wherein the second locking element is formed as a mating part of the first locking element.

[0008] According to an advantageous design of the invention, at least one second locking element is disposed on the side of the contact section opposite to the support leg. Therefore, when the support leg is supported on the upper side of the busbar, locking occurs below the lower side of the busbar. This allows for a simple, compact locking mechanism without the need for additional components.

[0009] According to an advantageous design of the invention, the bus has at least one locking section, with at least one second locking element formed at said locking section, wherein the at least one locking section is disposed substantially orthogonal to the contact section. For example, the bus may have at least one locking arm extending from the contact section, said locking arm forming the locking section. This also achieves advantageous placement of the first and second locking elements in the locked state.

[0010] According to an advantageous design of the invention, the clamping legs are arranged substantially orthogonally to the first connecting section. The clamping spring may, for example, begin with a spring bow starting from the support leg, to which the first connecting section is connected. The clamping spring may transition from the first connecting section through a curved area into the clamping legs.

[0011] According to an advantageous design of the invention, the clamping leg forks into two side tabs in the direction away from the first connecting section. These side tabs surround a window-like opening and are connected to each other at their ends away from the first connecting section by transverse tabs configured to clamp the electrical wire at the contact section. This provides an advantageously positioned window-like opening through which the electrical wire to be connected can pass, and then be fixedly clamped at the contact section of the busbar in the clamped position by means of the transverse tabs. The S-shaped configuration of the clamping leg, i.e., having a first and a second arcuate section, can be achieved, for example, by corresponding arcuate configurations of the side tabs. This allows for a well-designed, flexible area that facilitates automatic wire connection.

[0012] According to an advantageous design of the invention, at least one first locking element is disposed at the transverse tab and / or at least one side tab. This is also advantageous for the arrangement of the locking mechanism of the clamping legs. For example, at least one first locking element may be disposed at the transverse tab aligned with the clamping edge for securing the clamping wire, i.e., at the same height. At least one first locking element may, for example, be disposed at the transition point from at least one side tab to the transverse tab. In particular, two first locking elements may be disposed at the transverse tab, or at each side tab.

[0013] To move the clamping leg from the clamped position to the open position, a manual operating force can be applied by the user to the first connecting section, which is also referred to as the operating section in some terminal block structures with cage-type tension springs. For example, the terminal block may have an operating press by means of which the operating force is applied to the first connecting section. As explained below, in the configuration of the clamping spring with an S-shaped region according to the invention, another type of manual operation of the clamping leg is more advantageous.

[0014] According to an advantageous design of the invention, the clamping leg has at least one loading section at at least one of the side tabs, at which the clamping leg can be manually operated by a manual actuating element to move to the open position. Such loading sections can also be present at both side tabs, allowing the clamping leg to be symmetrically loaded with actuating force on both sides. This placement of the loading section at at least one of the side tabs enables force to be applied to the clamping leg so that the relatively flexible S-shaped section is not excessively flattened, but rather at most slightly compressed or even slightly stretched. In this manner, the clamping leg can be moved particularly effectively into its locked position, where the actuating stroke can be kept small.

[0015] Therefore, one or more loading sections can be advantageously positioned between the curved section and the first bow-shaped section, the curved section connecting the connecting section and the clamping leg.

[0016] According to an advantageous design of the invention, the terminal block has a release element with a release section, which releases the locking of at least one first locking element and at least one second locking element when an operating force is applied to the release section by the conductor. This configuration allows for the integration of automatic conductor connection functionality into the terminal block. In particular, known and proven terminal blocks of a certain structural type can be extended to automatic triggering functionality, i.e., automatic wiring of conductors to be clamped, with minimal additional cost in the manner described above. Automatic conductor connection functionality can be integrated into the terminal block very efficiently and with only minimal additional cost.

[0017] The release section may be positioned behind the clamping legs and / or the contact section in the wire introduction direction, and is reliably operated via the introduced wire only when the wire has been introduced sufficiently far into the terminal block, such that the wire can be reliably clamped at the contact section by the clamping legs. The release section may be configured to apply a release force via the wire, acting in the wire introduction direction and sufficient to release the clamping legs from the open position.

[0018] The releasing element can be configured as a separate component. Alternatively, it can be integral with the clamping spring, meaning the releasing element and clamping spring can be formed as a single piece. For example, the releasing element can be formed as a single piece with the support leg. Correspondingly, the number of components required for the terminal block is kept to a minimum.

[0019] The releasing element can be pivotally suspended via a flexible connecting portion due to the S-shaped configuration of the clamping legs. This flexible connecting portion allows for easy pivoting of the releasing element when the releasing section is loaded via an electrical conductor. This has the advantage that even if the electrical conductor has relatively low bending strength, the releasing element can achieve sufficient pivoting to release the lock. When the releasing element and clamping legs are integrally formed, the flexible connecting portion can be implemented, for example, through a relatively thin side plate, which is made of the same sheet material as the clamping spring and correspondingly possesses spring-like elasticity. Furthermore, this has the advantage that after a corresponding deflection via the electrical conductor, the releasing element can spring back to its original position via the flexible connecting portion.

[0020] This pivotable suspension of the release element allows the entire release element to pivot when the release section is loaded in the direction of wire introduction, and moves the first locking element away from the second locking element in the manner described above, thereby releasing the lock.

[0021] According to an advantageous design of the invention, when the release section is loaded with an operating force, the release element pivots in a direction away from the support leg. Here, the release element itself remains substantially undeformed because it has greater bending strength than the flexible S-shaped area of ​​the clamping leg. Here, it is primarily the relatively flexible S-shaped area of ​​the clamping leg that deforms, thereby allowing the first locking element to move away from the second locking element and thus release the lock.

[0022] According to an advantageous design of the invention, the releasing element is connected to the clamping leg via a third arched section and extends from the third arched section via a second connecting section to the releasing section. This allows the releasing element to be advantageously structurally integrated into the clamping leg. The third arched section may be arched in the opposite direction to the second arched section.

[0023] The second connection section can extend substantially parallel to the contact section of the busbar, starting from the clamping leg in the direction of wire introduction.

[0024] According to an advantageous design of the invention, the second connecting section is bent and / or bow-shaped. By means of the bent or bow-shaped configuration of the connecting section, it can be supported and held at the support element of the terminal block, much like a rocker arm.

[0025] According to an advantageous design of the invention, the terminal block has a support element, at which the releasing element can be supported when releasing at least one first locking element and at least one second locking element. This further enhances the lever effect of the releasing element when the releasing section is loaded with an actuating force, ensuring reliable release of the clamping legs. The releasing element can be supported on the support element, particularly by its second connecting section. The support element can, for example, be configured as a protrusion in an insulating housing.

[0026] According to an advantageous design of the invention, the bus has a wire pass-through opening through which an electrical wire, clamped at a spring-loaded clamping connector, passes. The wire pass-through opening can be laterally limited, for example, by the bus having two previously described locking sections spaced apart from each other and laterally limiting the wire pass-through opening. Thus, the inserted electrical wire is also laterally held by the locking sections. Additionally, a release element can also extend through the wire pass-through opening, for example, with its third arcuate section or second connecting section.

[0027] A second locking element may be formed at each locking segment. The second locking element may be disposed on the inner side of the locking segments facing each other.

[0028] According to an advantageous design of the invention, the terminal block has a manual operating element for moving the clamping legs to the open position. This has the advantage that the terminal block has its own operating element, which can be structurally well coordinated with the operation of the clamping legs. The manual operating element is always available to the user, so that the user does not need to use external tools to operate the clamping legs. Alternatively, the manual operating element can be designed for tool operation, i.e., the user can then operate the manual operating element with the aid of a tool such as a screwdriver. Alternatively, the terminal block can also be configured without a manual operating element. In this case, the clamping legs can be operated by the aforementioned tool.

[0029] According to an advantageous design of the invention, the manual operating element is configured as an operating press member supported in an insulating housing in a manner movable in the direction of movement. This has the advantage that the operating element can be housed in the insulating housing with very little space and allows for good force transmission to the clamping legs. In particular, this allows for the efficient implementation of compact wiring terminals for lateral wiring.

[0030] According to an advantageous design of the invention, the direction of movement of the actuating element is oriented substantially orthogonal to the direction of wire introduction or at an angle greater than 45 degrees relative to the direction of wire introduction. In this manner, the terminal block is well suited for so-called lateral wiring, in which one or more electrical wires are introduced transversely to the direction of movement of the actuating press into the insulating housing.

[0031] According to an advantageous design of the invention, the manual operating element has at least two spaced-apart side legs extending from the manual operating section, forming a free space between the side legs. Advantageously, the wire to be clamped can be guided through the free space between the side legs to the releasing section. Here, a spring-operated section can be provided at each of the side legs, through which the clamping leg can be deflected to an open position when the operating element is operated. In this manner, the operating element can be configured, for example, as a fork-shaped pressing member. By means of the spring-driven members at the side legs, the clamping leg can be symmetrically, i.e., evenly, on both sides, with an operating force. This avoids an unfavorable tilting position of the clamping leg during pivoting.

[0032] In the context of this invention, the indefinite article "a" is not understood as a numeral. Therefore, if, for example, one component is referred to, it should be interpreted in the sense of "at least one component." As long as the angle is described in degrees, the angle description refers to a circle of 360 degrees (360º). Attached Figure Description

[0033] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. The drawings show:

[0034] Figure 1 The terminals in the clamped position are shown in a perspective view.

[0035] Figure 2 Shown in a three-dimensional view according to Figure 1 The clamping spring of the terminal block,

[0036] Figure 3 Shown in a three-dimensional view according to Figure 1 The busbar of the terminal block,

[0037] Figure 4 A perspective view showing the clamping position based on... Figure 2 The clamping spring, according to Figure 3 The busbar and the spring force formed by the release element clamp the connector.

[0038] Figure 5 The diagram shows the open position of the lock according to... Figure 4 The spring force clamps the connector.

[0039] Figure 6The following is shown after the clamping leg lock is released. Figure 5 The spring force clamps the connector.

[0040] Figure 7 The side view shows the area in which the loosened element is located. Figure 1 A magnified partial view of the wiring terminals. Detailed Implementation

[0041] Figure 1 A terminal block 1 with an insulating housing 2 is shown. The insulating housing 2 has a wire inlet opening 20 through which electrical wires can be introduced in the wire introduction direction L. At least one spring-forced clamping connector is provided in the insulating housing, the spring-forced clamping connector having a busbar 3, a clamping spring 4, and a release element 8. The terminal block 1 also has a manual operating element 6.

[0042] exist Figure 3 The busbar 3, additionally shown, has a contact section 30 for clamping electrical wires, a spring retaining section 31 for supporting the clamping spring 4, and at least one or two locking sections 32 extending from the spring retaining section 31 as shown. A second locking element 33 is formed at each locking section 32. The second locking elements 33 may be disposed on the inner sides of the locking sections 32 facing each other. The locking sections 32 extend substantially orthogonally to the contact section 30 and / or the spring retaining section 31.

[0043] Additionally, in Figure 2 The image shows the clamping spring 4 as a single component, more precisely, in its open position, pre-tensioned by manipulating the clamping leg 43. As can be seen, the clamping spring 4 has a clamping leg 43 for clamping the electrical wire at the contact section 30, a support leg 41, and a spring bow 42 connecting the clamping leg 43 to the support leg 41. The clamping spring 4 is configured as a cage-type tension spring. Correspondingly, the clamping leg 43 is not directly connected to the spring bow, but rather via a first connecting section 44 and a bent section 45. The support leg 41 supports the clamping spring 4 at the spring holding section 31, such that the clamping force relative to the clamping leg 43 supports the clamping spring 4 in this manner.

[0044] The clamping leg 43 branches into two side tabs 47 in a direction away from the first connecting section 44, the side tabs being able to extend parallel to each other, for example. A window-like opening 48 is formed between the side tabs 47. The support leg 41 has an end section 40 with a smaller width, the end section being able to extend through the window-like opening 48, at least in the clamped position. The contact section 30 is also able to extend through the window-like opening 48, at least in the clamped position.

[0045] Side tabs 47 extend to transverse tabs 49, which are connected to each other at their ends opposite to the first connecting section 44. Transverse tabs 49 are used to clamp electrical wires at the contact section 30. For this purpose, transverse tabs 49 may have clamping edges 46. Furthermore, first locking elements 50 are formed on the outer side of the transverse tabs 49, outside the area surrounded by the side tabs 47.

[0046] As can be seen, the side connector 47 is S-shaped in the side view. Starting from the first connecting section 44, the clamping leg 43 first has a first arched section 51 at the side connector 47 that is arched away from the spring bow 42, and then has a second arched section 52 that is arched in the opposite direction to the first arched section 51.

[0047] The releasing element 8 and the clamping leg 43 are formed in one piece. The clamping leg 43 transitions into the releasing element 8 at its transverse tab 49 via a third arcuate section 53, more specifically, first into the second connecting section 81 of the releasing element 8, and then into the releasing section 80 of the releasing element 8. The second connecting section 81 may be bent as shown or may be arcuately constructed. The releasing section 80 is substantially orthogonal to the wire introduction direction L, at least when the clamping leg 43 is deflected to the open position, such that the introduced electrical wire can be specifically guided onto the releasing section 80 and an operating force can be applied to the releasing section 80.

[0048] As in Figure 2 As can be seen in the image, a loading section 54 is formed at the clamping leg 43, especially on the outer side of the side tab 47, the loading section being used to apply force to the clamping leg 43 by means of the actuating element 6.

[0049] The operating element 6 is configured as a fork-shaped pressing member, i.e., as an operating pressing member, which is supported in the insulating material housing 2 in a manner movable in the direction of movement V. The manual operating element 6 has a manual operating section 60, at which the user can apply operating force. The operating element 6 extends from the manual operating section 60 into the insulating material housing 2 via two spaced-apart side legs 62, until it reaches the clamping leg 43 or the loading section 54. Each side leg 62 has a spring-operated section 61, through which the operating force of the operating element 6 can be transmitted to one of the loading sections 54. The wire to be clamped can be guided through the free space between the side legs 62.

[0050] Figure 4The spring-force clamping connector of terminal 1 is shown when the operating element 6 (not shown) is not operated, i.e., when the clamping leg 43 is in the clamping position. In the clamping position, the transverse tab 49 abuts against or is close to the contact section 30 on the underside of the contact section 30 away from the support leg 41.

[0051] If now, by means of the operating element 6, the clamping leg 43 is moved to the open position, such as Figure 5 As shown, the first locking element 50 locks with the second locking element 33 at the locking section 32 of the busbar 3. The releasing section 80 is now oriented substantially orthogonal to the wire introduction direction L, and can be reliably loaded with an operating force acting in the wire introduction direction L through the introduced electrical wire in the manner described.

[0052] Figure 6 The following is shown after the release section 80 is loaded with a manipulating force: Figure 5 The spring force clamps the connector. As can be seen, the entire releasing element 8 pivots slightly away from the support leg 41. The first locking element 50 moves away from the second locking element 33 and is no longer locked. As a result, the lateral tab 49 and thus the entire clamping leg 43 are released. By the spring return force of the clamping spring 4, the lateral tab 49 now moves toward the contact section 30, so that the wire can be clamped by the lateral tab 49 on the side of the contact section 30 opposite to the support leg 41. The wire then extends through the window-like opening 48 between the side tabs 47 and through the free space between the locking sections 32.

[0053] As in Figure 4 As can be seen, at least in a specific operating state of the clamping spring 4, a portion of the releasing element 8 can also extend through the free space between the locking sections 32.

[0054] As in Figure 1 As can be seen from the image, the insulating material housing 2 has a support element 21, the function of which is based on... Figure 7 Explanation: If an operating force is applied to the releasing section 80 and the releasing section 80 deflects therefrom, the releasing element 8 pivots away from the support leg 41, that is, pivots toward the support element 21. The releasing element 8 is supported at the support element 21, thereby further enhancing the leverage effect of the releasing element 8 for releasing the lock.

[0055] List of reference numerals

[0056] 1 terminal block

[0057] 2. Insulating material housing

[0058] 3 bus

[0059] 4 clamping springs

[0060] 6 control elements

[0061] 8 Release components

[0062] 20 wires introduced into the opening

[0063] 21 Support elements

[0064] 30 contact sections

[0065] 31 Spring retaining section

[0066] 32-card lock section

[0067] 33 Second locking element

[0068] 40 end section

[0069] 41 Support Legs

[0070] 42 Spring Bow

[0071] 43. Clasp your legs together

[0072] 44 Connecting Section

[0073] 45-degree bend

[0074] 46 Clamping edge

[0075] 47 side connectors

[0076] 48 window-shaped openings

[0077] 49 Horizontal splicing

[0078] 50 First locking element

[0079] 51 First bow-shaped section

[0080] 52 Second arched section

[0081] 53 Third bow-shaped section

[0082] 54 Loading Section

[0083] 60 manual control section

[0084] 61 Spring Operating Section

[0085] 62 side legs

[0086] 80 loosening section

[0087] 81 Second connecting section

[0088] L-direction of wire introduction

[0089] V-direction of movement

Claims

1. A terminal block (1) having an insulating material housing (2) having at least one wire inlet opening (20) for receiving an electrical wire in a wire inlet direction (L), wherein at least one spring force clamping connector for clamping the electrical wire by means of a spring force is provided in the insulating material housing (2), the spring force clamping connector having at least one busbar (3) and a clamping spring (4), the busbar having a contact section (30). The clamping spring (4) has a support leg (41), a spring bow (42), and a clamping leg (43) with a window-like opening (48). The support leg is used to support the clamping spring (4) with spring force relative to the clamping leg (43). The support leg (41) and / or the busbar (3) extend through the window-like opening (48). The clamping leg (43) is at least able to move back and forth between an open position and a clamped position. In the clamped position, an introduced electrical wire can be fixedly clamped at the contact section (30) by means of the clamping leg (43). Its features are, The clamping leg (43) begins at the first connecting section (44) of the clamping spring (4) that connects the clamping leg (43) to the spring bow (42), first transitions in the region of the window-shaped opening (48) to a first arched section (51) away from the arch of the spring bow (42), and then transitions to a second arched section (52) that is opposite to the arch of the first arched section (51).

2. The terminal block according to claim 1, characterized in that, At least one first locking element (50) is formed at the clamping leg (43), the first locking element being configured to engage with at least one second locking element (33) formed at the busbar (3) or the support leg (41) in the open position, thereby holding the clamping leg (43) in the open position.

3. The terminal block according to claim 2, characterized in that, The at least one second locking element (33) is disposed on the side of the contact section (30) opposite to the support leg (41).

4. The terminal block according to any one of claims 2 to 3, characterized in that, The busbar (3) has at least one locking section (32), and at least one second locking element (33) is formed at the at least one locking section, wherein the at least one locking section (32) is disposed substantially orthogonal to the contact section (30).

5. The terminal block according to any one of the preceding claims, characterized in that, The clamping leg (43) is positioned substantially orthogonal to the first connecting section (44).

6. The terminal block according to claim 5, characterized in that, The clamping leg (43) branches into two side tabs (47) in a direction away from the first connecting section (44), the side tabs surrounding the window opening (48) and connected to each other at their ends away from the first connecting section (44) by a transverse tab (49) configured to clamp the electrical wire at the contact section (30).

7. The terminal block according to claim 6, characterized in that, The at least one first locking element (50) is disposed at the transverse tab (49) and / or at at least one side tab of the side tabs (47).

8. The terminal block according to any one of claims 6 to 7, characterized in that, The clamping leg (43) has at least one loading section (54) at at least one side tab of the side tab (47), and the clamping leg (43) at the loading section can be manually operated by an actuating element to move to the open position.

9. The terminal block according to any one of the preceding claims, characterized in that, The terminal block (1) has a release element (8) with a release section (80) which can release the lock of at least one first locking element (50) and at least one second locking element (33) when the conductor applies a manipulating force to the release section (80).

10. The terminal block according to claim 9, characterized in that, The release element (8) and the clamping leg (43) are formed in one piece.

11. The terminal block according to any one of claims 9 to 10, characterized in that, The release element (8) is connected to the clamping leg (43) via the third bow section (53) and extends from the third bow section (53) via the second connecting section (81) to the release section (80).

12. The terminal block according to claim 11, characterized in that, The second connecting segment (81) is bent and / or bow-shaped.

13. The terminal block according to any one of claims 9 to 12, characterized in that, The terminal block (1) has a support element (21), and the release element (8) is able to be supported at the support element at least when the at least one first locking element (50) and the at least one second locking element (33) are released.

14. The terminal block according to any one of the preceding claims, characterized in that, The busbar (3) has a wire pass-through opening, and the electrical wire clamped at the spring force clamping connector (1) passes through the wire pass-through opening.

15. The terminal block according to any one of the preceding claims, characterized in that, The terminal block (1) has an operating element (6) for moving the clamping leg (43) to the open position.

16. The terminal block according to claim 15, characterized in that, The operating element (6) is configured as an operating press that is supported in the insulating material housing (2) in a manner that allows it to move along the direction of movement (V).

17. The terminal block according to any one of claims 15 to 16, characterized in that, The control element (6) has at least two side legs (62) that are spaced apart from each other and extend from the control section (60), forming a free space between the side legs.

18. The terminal block according to any one of claims 6 to 8, characterized in that, Electrical wires can extend through the window-like openings (48) between the side tabs (47).

19. The terminal block according to any one of the preceding claims, characterized in that, The clamping leg (43) is connected to the spring bow (42) via the first connecting section (44) and the bending section (45), the bending section (45) being opposite to the spring bow (42) with respect to the first connecting section (44).

20. The terminal block according to any one of the preceding claims, characterized in that, The supporting leg (41) is opposite to the first connecting section (44) with respect to the spring bow (42).

21. The terminal block according to any one of claims 6 to 8, characterized in that, The transverse tab (49) has a clamping edge (46).

22. The terminal block according to any one of claims 6 to 8, characterized in that, The transverse tab (49) is located at the free end of the clamping leg (43) near the second bow-shaped section (52).

23. The terminal block according to claim 8, characterized in that, The at least one loading segment (54) is disposed near the first bow-shaped segment (51).

24. The terminal block according to any one of claims 6 to 8, characterized in that, In the open position, the second bow-shaped segment (52) and / or the transverse tab (49) at least partially enter the free space between the at least one locking segment (32).

25. The terminal block according to claim 4, characterized in that, The electrical wire can extend through the free space between the at least one locking section (32).

26. The terminal block according to claim 9, characterized in that, A portion of the release element (8) is able to extend through the free space between the at least one locking section (32) in the clamped position.

27. The terminal block according to any one of the preceding claims, characterized in that, The clamping spring (4) is configured as a cage-type tension spring.

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