Wiring terminal

Abstract

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

Description

Technical Field

[0001] The present invention relates to a terminal block having an insulating material housing having at least one wire inlet opening for receiving an electrical wire in a wire introduction direction, wherein at least one spring-force clamping connector for connecting the electrical wire by means of a spring force is provided in the insulating material housing, wherein the spring-force clamping connector has at least one busbar and a clamping spring, the clamping spring having a clamping leg with a clamping edge for clamping the electrical wire at the clamping part to the contact section of the busbar. 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 conductor to be clamped when it is inserted into the terminal block. Upon insertion of the conductor, the clamping legs, which are held in the open position by the clamping spring, automatically release, thereby causing a secure clamping of the conductor. Summary of the Invention

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

[0004] The objective is achieved by providing a carrying member at the clamping leg, the carrying member having a deflection surface extending from the clamping leg on the side opposite to the contact section (and correspondingly opposite to the clamping portion) for deflecting the clamping leg, wherein the clamping leg can be moved from a clamped position to an open position by an actuating force applied to the deflection surface against the direction of wire introduction. This allows for the simple integration of the clamping leg's actuation capability, even where a terminal block structure already exists, especially in embodiments where actuation capability for the clamping leg has not been feasible to date. In this manner, reliable terminal blocks of known structural types can expand manual actuation capability with minimal effort. Advantageously, the clamping leg can then be actuated, for example, from the back side of the insulating housing, i.e., opposite to the direction of wire introduction.

[0005] By operating the clamping legs from the "rear", the terminal block structure can be kept as flat as possible, because the operating channels and wire entry channels do not need to be arranged side by side or stacked one on top of the other.

[0006] The present invention is suitable, for example, for compact junction box terminals, such as junction box terminals with leaf spring connectors, wherein the clamping leg is connected to the support section of the clamping spring without the spring bow known in many junction box terminals, which extends over an angular range of greater than 180°.

[0007] The clamping part can be formed, for example, between the clamping edge of the clamping leg and the contact part at the contact section of the busbar.

[0008] According to an advantageous design of the invention, the carrying member and the clamping leg are formed as a single piece, or the carrying member is configured as a separate component fastened to the clamping leg. This allows for a variety of design possibilities for the clamping spring and the carrying member. In the case of the one-piece design of the carrying member and the clamping leg, the carrying member can, for example, be configured as a material segment extending from the side of the clamping leg opposite to the clamping edge. If the carrying member is configured as a separate component, it can, for example, be fastened to the clamping leg by a form-fitting fixing element.

[0009] According to an advantageous design of the invention, the carrying member is fixed at the clamping leg at the fastening location at least relative to the force acting against the direction of the guide wire introduction, wherein at least one connecting arm of the carrying member extends from the fastening location against the direction of the guide wire introduction to the deflection surface. This allows for a more advantageous design of the lever ratio used to deflect the clamping leg when the deflection surface is loaded. For example, the carrying member can extend along at least one connecting arm from the fastening location near the clamping edge to the root of the clamping leg, that is, to a portion of the clamping leg, for example, branching off from the support section. Depending on the configuration of the carrying member, it can, for example, have a central connecting arm or two connecting arms extending laterally along the clamping leg.

[0010] According to an advantageous design of the invention, at least one connecting arm is provided with a planar extension orthogonal to the clamping leg and / or a planar extension orthogonal to the deflection surface. This enables good force transmission and absorption at the deflection surface when manipulating the actuator. Furthermore, the moment of inertia of the actuator in the longitudinal direction of the clamping leg can be increased with minimal effort.

[0011] According to an advantageous design of the invention, at least one connecting arm is arranged parallel to or at an acute angle to the planar extension of the clamping leg. This variation is particularly suitable for carriers having a central connecting arm.

[0012] According to an advantageous design of the invention, at least one connecting arm has a higher moment of inertia in the longitudinal direction of the clamping leg than the clamping leg. This ensures that the clamping leg bends substantially when the carrier is manipulated, and the carrier itself does not bend as much. To increase the moment of inertia, for example, a reinforcing element extending in the longitudinal direction can be formed in at least one connecting arm, such as a rolled edge and / or an embossed portion.

[0013] According to an advantageous design of the invention, a pivot support is provided on the side of the clamping leg opposite to the deflection surface, on which the clamping leg can be pivotally supported when the deflection surface is manipulated, so as to support the pivoting movement of the clamping leg to the open position. This has the advantages of simplifying the pivoting movement of the clamping leg to the open position and reducing the force applied to the deflection surface. The deflection of the clamping leg can then be performed significantly more easily by the user. The support portion can be provided, for example, between the clamping edge and the point where the actuating force is applied to the deflection surface, at which the clamping leg can be supported on the pivot support during the pivoting movement. In an advantageous design, the support portion can be provided closer to the point where the actuating force is applied than at the clamping edge, or substantially centrally located between the point where the actuating force is applied and the clamping edge. Here, the support portion can form a flipping portion, at which the clamping leg can perform a flipping movement, similar to a seesaw.

[0014] According to an advantageous design of the invention, the insulating housing has at least one operating channel in which an operating tool, not part of the terminal block, or a pressing member for operating the clamping legs, which is part of the terminal block, can be disposed. The pressing member can be configured as a separate component relative to the insulating housing. Therefore, the actuating member can be subjected to an operating force at the deflection surface via the operating channel. If an operating tool, such as a screwdriver, is used, the tool can be inserted into the operating channel when needed. Thus, the operating tool does not need to remain at the terminal block. Alternatively, a sufficiently rigid electrical wire can also be used as the operating tool.

[0015] If the terminal block has its own pressing element for operating the clamping leg, the pressing element can be permanently positioned in the operating channel. In this case, the user applies manual operating force to the operating surface of the pressing element either directly with their finger or with a suitable tool.

[0016] According to an advantageous design of the invention, the deflecting surface extends into the operating channel or at least into a housing section of the insulating material housing located in an extension of the operating channel. Therefore, the operating tool or pressing element is directed to the deflecting surface via the operating channel, thereby ensuring reliable opening of the clamping portion.

[0017] According to an advantageous design of the invention, the operating channel can be accessed via an operating opening in the insulating housing, the operating opening being located on the housing side opposite to the wire inlet opening. The operating opening can be particularly located on the housing side opposite to the wire inlet opening, for example, on the back side of the housing. A tool can be introduced through the operating opening, or, if a pressing element is present, an operating force can be manually applied to the pressing element.

[0018] According to an advantageous design of the invention, the terminal block has a retaining element configured to hold the clamping legs in the open position. When no actuating force is applied to the drive member, the retaining element also enables the clamping legs to be held in the open position. This configuration allows for the integration of automatic release technology into spring-forced clamping connectors and terminals of different structural types. In particular, it is possible to further develop reliable terminal blocks of known structural types in this manner with minimal expense to provide automatic release functionality, i.e., automatic wire connection of the clamped conductor.

[0019] The retaining element can be movably configured, for example, movably, pivotally, or otherwise deflectably configured, such that the retaining element can be slightly deflected by an inserted wire to achieve a desired release effect between the clamping leg and the retaining element. The retaining element can be movably supported, for example, movably supported in a straight or arcuate direction. The retaining element can be pivotally supported. 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 supported in a floating pivotal manner. The retaining element can also perform combined lateral and pivotal movements. The retaining element can also be otherwise movably supported such that the retaining element can be deflected sufficiently far to release the clamping leg's latch at the retaining element.

[0020] The clamping leg, via a drive mechanism, can overcome the spring force of the clamping spring and move to the open position during manual operation. In the open position, the clamping leg can then be held by a retaining element, and the operating mechanism can be easily operated manually, making it feasible to introduce electrical wires at any time without requiring special force. For example, the clamping leg can be locked at the retaining element in the open position.

[0021] 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 the clamping edges of the clamping legs pivot away from the contact section of the busbar. The clamping legs, for example, are pivotable 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.

[0022] The retaining element can act directly on the clamping leg to hold the clamping leg in the open position. Therefore, for example, a first locking element can be provided at the clamping leg and a second locking element at the retaining element, wherein the first and second locking elements can lock into each other in the open position. The first locking element can be configured as a locking protrusion or a locking hook. The second locking element can be configured as a locking edge or a locking opening.

[0023] The retaining element can exist as a separate component, for example, fastened to the insulating housing of the terminal block, fastened to the busbar, or fastened to other components. The retaining element can also be molded as a single piece with the clamping spring.

[0024] According to an advantageous design of the invention, the retaining element is positioned behind the clamping portion or substantially behind the busbar along the wire introduction direction from the conductor to the spring-forced clamping connector. In this manner, the retaining element does not obstruct the insertion of the conductor. For example, the retaining element, in the open position, i.e., when the clamping legs are locked at the retaining element, is positioned such that, when viewed along the wire introduction direction, it does not extend into the wire receiving space or only slightly extends into the wire receiving space.

[0025] According to an advantageous design of the invention, the spring-loaded clamping connector has a release element, by which actuation of the release element can deflect the retaining element until the clamping leg held at the retaining element is released from the retaining element. The release element can have a release section. When the conductor to be clamped applies an actuation force to the release section, the clamping leg held at the retaining element in the open position can be released from the retaining element by means of the release element. This allows the clamping leg to be automatically released from the retaining element by inserting the conductor. The release section can be used to release the clamping leg from the retaining element by means of a separate tool, a terminal component, such as an actuation element, or by applying pressure directly via the introduced conductor itself. By means of the release element, the clamping leg held at the retaining element in the open position can be released from the retaining element by applying pressure to the release section in the conductor introduction direction (L) of the conductor to be connected. Depending on the configuration of the spring-force clamping connector, the releasing element can be configured as part of the clamping spring, for example, as a releasing element formed in one piece with the clamping spring, or as a separate component.

[0026] According to an advantageous design of the invention, the releasing element is a component or assembly of the spring-force clamping connector, the component or assembly having a retaining element. This allows for low structural and assembly costs for the spring-force clamping connector. Therefore, in particular, it is not necessary to assemble two different components or assemblies for assembling the releasing element and the retaining element, but only one component or assembly is assembled. For example, the releasing element can be molded in one piece with the retaining element. The component or assembly can be made of, for example, plastic or metal or a combination of these materials.

[0027] According to an advantageous design of the invention, the clamping spring has a support section configured to support the clamping spring at the busbar. This support section allows for reliable support of the clamping spring and sufficient support relative to the spring force applied by the clamping legs.

[0028] According to an advantageous design of the invention, the support section has a base section and a fastening section, wherein clamping legs branch off from the base section, and the support section engages the busbar from the rear with its fastening section, such that the busbar is supported at the fastening section and at least partially disposed between the base section and the fastening section. Here, the clamping legs can branch off from the base section, particularly without a 180° spring bow. For example, the clamping legs can branch off from the base section at an acute angle, which, for example, can be less than 60° in the open position. The base section can be connected to the fastening section via a connecting section. For example, the base section can extend substantially parallel to the fastening section, or can have a small angle relative to the fastening section, particularly less than 20°.

[0029] According to an advantageous design of the invention, a wire guiding channel for guiding an electrical wire to be securely clamped at the contact section can be formed in the insulating material housing, wherein the releasing section of the releasing element is disposed in the wire guiding channel or at least extends into the wire guiding channel or into an extension of the wire introduction channel.

[0030] According to an advantageous design of the invention, the releasing section of the releasing element can be disposed behind the contact section or at least behind the clamping section along the wire introduction direction.

[0031] In the context of this invention, the indefinite term "one" is not to be understood as a numeral. Therefore, if, for example, a component is referred to, it should be interpreted in the sense of "at least one component." Angles are described in degrees, referring to the dimension of a circle of 360 degrees (360°). Attached Figure Description

[0032] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0033] The attached diagram shows

[0034] Figure 1 The terminal block in the clamped position is shown in a side sectional view.

[0035] Figure 2 The basis shown in the open position Figure 1 The wiring terminals,

[0036] Figure 3 The carrying component in the first embodiment is shown in a perspective view.

[0037] Figure 4 The carrying component in the second embodiment is shown in a perspective view.

[0038] Figure 5 Another embodiment of the terminal block in the clamped position is shown in a side sectional view.

[0039] Figure 6 Another embodiment of the terminal block in the clamped position is shown in a side sectional view.

[0040] Figure 7 The basis shown in the open position Figure 6 The wiring terminals,

[0041] Figure 8 The basis for showing the inserted electrical wires is shown. Figure 6 The wiring terminals,

[0042] Figure 9 The clamping spring is shown in a perspective view.

[0043] Figure 10 The busbar is shown in a 3D view.

[0044] Figure 11 The retain-release element of the assembly is shown in a perspective view. Detailed Implementation

[0045] Figure 1 A terminal 1 with an insulating housing 2 is shown. The insulating housing 2 has a wire inlet opening 20 on the wire inlet side, through which an electrical wire can be introduced into the insulating housing 1 along the wire inlet direction L and clamped at a spring-forced clamping connector.

[0046] It can be seen that a spring-force clamping connector is disposed in the insulating material housing 2, the spring-force clamping connector having a clamping spring 4 and a busbar 3. The clamping spring 4 has a support section 41, through which the clamping spring 4 is supported at the busbar 3. In addition, the clamping spring 4 has clamping legs 43 branching off from the support section 41 at an acute angle. The clamping legs 43 extend toward a free end, at which the clamping legs 43 have clamping edges 46 for securely clamping the electrical wire. Figure 1 In the clamping position shown, when no electrical wire is introduced, the clamping leg 43 and the clamping edge 46 are pressed against the contact section 31 of the busbar 3. The electrical wire can be firmly clamped at the clamping part 30 between the clamping leg 43, or the clamping edge 46, and the contact section 31.

[0047] The support section 41 extends from the base section 40 to the connecting section 42, which is angled relative to the base section. The clamping leg 43 branches out from the base section. The connecting section 42 transitions into the fastening section 44, which is angled relative to the connecting section 42. The fastening section 44 engages the manifold 3 from the rear, that is, the fastening section rests against the side away from the clamping part 30, and can be said to rest against the back side of the manifold 3 to some extent.

[0048] Terminal 1 has a function for transferring the clamping leg 43 from the clamping position to the clamping position. Figure 2 The mechanism shown is an open position mechanism. This mechanism includes a carrying member 6, which can be integrally formed with the clamping spring 4, or, as shown in the illustrated embodiment, can be configured as a separate component from the clamping spring 4 and correspondingly fastened to the clamping spring 4, particularly to the clamping leg 43. In the illustrated embodiment, the carrying member 6 has a hook-shaped fixing element 62, via which the carrying member is fastened to the clamping leg 43 at a fastening portion 63. The carrying member 6 extends from the fastening portion 63 via at least one connecting arm 61 toward a deflection surface 60 of the carrying member 6, wherein the deflection surface 60 is preferably orthogonal to the connecting arm 61. The carrying member 6 enables the clamping leg 43 to be moved from the clamped position to the open position by an operating force B applied to the deflection surface 60 against the direction of the guide wire introduction L. The operating force B can be transmitted to the deflection surface 60 via the operating opening 23 or operating channel 22 in the insulating housing 2, for example, via a tool introduced into the operating channel 22. By the operating force B transmitted to the deflection surface 60, the clamping leg 43 moves away from the contact section 31 until the clamping leg is at... Figure 2 The open position is shown in the image.

[0049] Furthermore, terminal 1 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 be locked in the open position by means of a locking element configured as a mating member at the clamping leg 43. The clamping leg 43 can then not easily move back to the clamped position. The locking element configured at the clamping leg 43 can be formed, for example, by a clamping edge 46 as shown in the figures. However, at least one separate locking element can also be configured at the clamping leg 43, for example, in the form of a protruding locking tab, which can then lock with the locking element 50. Here, the locking element 5 can be fixed to the clamping spring 4 in such a way that the locking element is held between the busbar 3 and the fastening section 44.

[0050] Furthermore, terminal 1 has a release element 8 for releasing the clamping leg 43 from the retaining element 5. In this case, the release element 8 and the retaining element 5 are integrally formed into a retaining-release element 5, 8, which will be described in detail below. The release element 8 has a release section 80 that can be manipulated by an inserted electrical wire. If pressure is applied to the release section 80 by the electrical wire, the retaining element 5 and the locking element 50 are thus slightly displaced toward the housing wall 21 behind the insulating housing 2 until the clamping leg 43 can be released from the locking element 50. The clamping leg 43 then springs open until it abuts against the inserted electrical wire and presses the electrical wire against the contact section 31.

[0051] Figure 3 A first embodiment of the carrier 6 is shown. In this embodiment, connecting arms 61 branch off approximately at right angles from the deflection surface 60 at two opposing sides. Each connecting arm 61 has a fixing element 62 for securing it to the clamping leg 43. The clamping leg 43 may, for example, have a widened lateral section that extends in the width direction from the clamping edge 46. The fixing element 62 can be hooked into the lateral section to secure the carrier 6 to the clamping leg 43.

[0052] Figure 4 A second embodiment of the carrier 6 is shown, wherein the deflection surface 60 does not have the same characteristics as in... Figure 3 The deflection surface 60 is not as clearly and obviously highlighted in the embodiment. Instead, it is formed by an extension of the central connecting arm 61. However, the deflection surface 60 then extends into the insulating housing in the area where it can be manipulated by a tool or other element. Figure 4 It can also be seen that the central connecting arm 61 can have reinforcing elements in the longitudinal direction in order to increase the moment of inertia of the section.

[0053] Figure 5 A terminal block 1 is shown, the terminal block being connected to... Figure 1 The implementation method is similar. And... Figure 1 The difference lies in the fact that... Figure 5 Install according to the wiring terminals Figure 4 The carrying component 6. With the aid of the carrying component 6, it is possible to... Figure 1 In a similar manner to the embodiment, the clamping leg 43 is deflected to the open position. It can be seen that a bend or curve is provided within the deflection surface 60, which is supported on the side of the clamping leg 43 facing away from the busbar 3, such that the free end of the deflection surface 60 is oriented away from the clamping leg 43 and extends into the operating channel 22. Furthermore, similar to... Figure 1 According to the implementation method Figure 5Terminal 1 also has combined holding-releasing elements 5 and 8.

[0054] Figure 6 Another embodiment of the terminal block 1 is shown, in which a carrying member 6 with a deflection surface 60 is also present. However, unlike the previously described embodiment, the carrying member is not a separate component, but is formed in one piece with the clamping spring 4, particularly as an extension of the clamping leg 43 at the end opposite to the clamping edge 46. It can be seen that the deflection surface 60 is similar to that in Figure 5 In the implementation, it extends in the area where it can be accessed via a manipulator or via, as in Figure 6 The fixed pressing member 7, as shown, applies pressure to the deflecting surface 60 to move the clamping leg 43 to the open position. Figure 6 The pressing element 7 shown can have an operating surface 70 that can be accessed from the outside, and an operating force B can be applied to the operating surface.

[0055] Figure 6 The implementation differs from the previously described implementation in that, in order to support the deflection movement of the clamping leg 43 to the open position, a pivot support 33 is additionally provided, on which the clamping leg 43 can be supported when pivoting to the open position. Thus, the operating force B applied by the tool or pressing member 7 is more efficiently converted into the pivoting movement of the clamping leg 43. The pivot support 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, or especially the clamping leg 43 and / or the base section 40, from shifting excessively toward the busbar 3 during operation.

[0056] Figure 7 This shows the operation of the corresponding pressing element 7 according to... Figure 6 The terminals allow the clamping leg 43 to be displaced or pivoted into the open position and locked at the locking element 50. If the operation of the pressing member 7 is terminated, the clamping leg 43 remains in the open position due to being locked at the retaining element 5.

[0057] Figure 8 The following is shown: A method with an inserted electrical wire 9 is provided. Figure 6 The wiring terminals. It can be seen that the wire 9 presses its free end against the release section 80, causing the release section to deflect slightly toward the rear housing wall 21 or to pivot slightly. This deflection is transmitted to the retaining element 5, which has a locking element 50. Consequently, the clamping leg 43 releases from the locking element 50 and pops out, causing the clamping leg to press the wire 9 against the contact section 31.

[0058] Figures 6 to 8The embodiment with the additional pivot support 33 can also be implemented. Figures 1 to 5 This is implemented in the following methods.

[0059] Figure 9 A clamping spring 4 is shown as an example, wherein two clamping legs 43 are implemented in a one-piece structural unit. Therefore, the clamping spring 4 is suitable for two side-by-side spring-force clamping connectors. The clamping spring 4 can be used in all the aforementioned terminals. The different sections of the support section 41 can be seen, namely the base section 40, the connecting section 42, and the fastening section 44. Additionally, a receiving portion 47 molded at the connecting section 42 can be seen, which is used to receive and support the retaining element 5, as will be described below. Between the two connecting sections 42 of the spring-force clamping connector, a tab 48 extends from the fastening section 44 of the clamping spring 4, which is used to fasten the retaining element 5, as will be described below.

[0060] Figure 10 Busbar 3 is shown, which provides two side-by-side receiving positions for electrical conductors at its contact section 31, and is correspondingly adapted to... Figure 5 The clamping spring 4 shown is used to achieve two spring-force clamping connectors arranged side by side. Each spring-force clamping connector has a corresponding pivot support element 33, which is connected to a contact section 31 via a support section 32. The corresponding pivot support element 33, together with its two support sections 32, forms a frame component through which the electrical wire to be connected can be inserted.

[0061] At the busbar 3, especially in the area away from the pivot support element 33, a retaining device 34 for retaining and releasing elements 5 and 8 for retaining the assembly can be molded.

[0062] By correspondingly matching components (clamping spring 4, busbar 3, insulating housing 2), terminal 1 can also be designed for more than two spring force clamping connections.

[0063] Figure 11The combined retaining-releasing elements 5 and 8 are shown, which can be used in the aforementioned terminals. The retaining-releasing elements 5 and 8 have a retaining element 5, which has a locking element 50, as mentioned above, at its free end. The region of the retaining element 5 where the locking element 50 is formed has a form-fitting connecting element 51, which can be inserted into a receiving element 47 of the support section 41. Thus, the locking element 50 can be supported on the support section 41, particularly on the connecting section 42, relative to the spring force applied by the clamping leg 43 in the open position. The retaining element 5 transitions to the releasing element 8 via an upper longitudinal section 52, where a releasing section 80 is provided. The releasing section 80 is connected at its opposite side via a lower longitudinal section 53 to a fastening section 54 of the retaining-releasing elements 5 and 8, which can be hooked into one of the retaining device 34 and / or the tab 48 of the clamping spring 4 at the busbar 3. Therefore, the entire retaining-releasing element 5 and 8 is fixed at the busbar 3.

[0064] Therefore, when force is applied to the release section 80 via the electrical wire 9, the lower regions of the holding-release elements 5 and 8 are fixed and do not deflect, and these lower regions are fastened to the holding device 34 via the fastening section 54. Correspondingly, only the upper regions of the holding-release elements 5 and 8 with the locking element 50 are deflected by the inserted electrical wire 9 and the release section 80.

[0065] In addition, Figure 7 As can be seen, the combined retaining-releasing elements 5, 8 are not configured as a continuous sheet in the region of the upper longitudinal section 52, but rather have a first gap 55 between the upper longitudinal sections 52. Similarly, the combined retaining-releasing elements 5, 8 are not configured as a continuous sheet in the region of the lower longitudinal section 53, but rather have a second gap 56 between the lower longitudinal sections 53. The first and / or second gaps 55, 56 enhance the elasticity of the retaining-releasing elements 5, 8, thereby reducing the required releasing force, which must be applied to the releasing section 80 via the inserted electrical wire 9. Another advantage of the first and / or second gaps 55, 56 is that they provide an observation window through which the electrical wire 9 can be visually controlled, at least when a transparent housing material is used in the region, to ensure that the wire 9 is extended sufficiently into the insulating housing 2.

[0066] List of reference numerals

[0067] 1. Terminal block

[0068] 2. Insulating material housing

[0069] 3 busbars

[0070] 4. Clamping spring

[0071] 5. Holding element

[0072] 6. Carrying parts

[0073] 7 Pressing parts

[0074] 8. Loosen the components

[0075] 9. Electrical wires

[0076] 20. Wire introduction opening

[0077] 21. Rear shell wall

[0078] 22 Manipulation Channel

[0079] 23 Manipulating the opening

[0080] 30 Clamping part

[0081] 31 contact section

[0082] 32 Support Section

[0083] 33 Pivot Support

[0084] 34 Holding device

[0085] 40 Base Section

[0086] 41 Support section

[0087] 42 Connecting Section

[0088] 43. Clasp your legs together.

[0089] 44 Fastening Section

[0090] 46. ​​Clamp the edges

[0091] 47. Reception Department

[0092] 48 stitches

[0093] 50 Locking Components

[0094] 51 Connecting elements

[0095] 52. Upper longitudinal section

[0096] 53. Lower longitudinal section

[0097] 54 Fastening Section

[0098] 55 First blank space

[0099] 56 Second blank space

[0100] 60 deflection surface

[0101] 61 Connecting Arm

[0102] 62 Fixing elements

[0103] 63 Fastening position

[0104] 70 control surfaces

[0105] 80. Loosen section

[0106] B. Controlling force

[0107] L-direction of wire introduction

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 connecting the electrical wire by means of a spring force is provided in the insulating material housing (2), wherein the spring-force clamping connector has at least one busbar (3) and a clamping spring (4), the clamping spring having a clamping leg (43) with a clamping edge (46) for clamping the electrical wire at a clamping portion (30) at a contact section (31) of the busbar (3), characterized in that, A carrying member (6) is provided at the clamping leg (43), the carrying member having a deflection surface (60) extending from the clamping leg (43) on the side of the clamping leg (43) opposite to the contact section (31) for deflecting the clamping leg (43), wherein the clamping leg (43) can be moved from the clamping position to the open position by an operating force (B) applied to the deflection surface (60) in the opposite direction of the wire introduction (L).

2. The terminal block according to claim 1, characterized in that, The carrying member (6) is formed in one piece with the clamping leg (43), or the carrying member (6) is configured as a component separate from the clamping spring (4) and fastened to the clamping leg (43).

3. The terminal block according to any one of the preceding claims, characterized in that, The carrying member (6) is fixed at the clamping leg (43) at the fastening part (63) at least relative to the force acting against the direction of the wire introduction (L), wherein at least one connecting arm (61) of the carrying member (6) extends from the fastening part (63) against the direction of the wire introduction (L) to the deflection surface (60).

4. The terminal block according to claim 3, characterized in that, The at least one connecting arm (61) is disposed orthogonal to the planar extension of the clamping leg (43) and / or orthogonal to the planar extension of the deflection surface (60).

5. The terminal block according to claim 3, characterized in that, The at least one connecting arm (61) is arranged parallel to the planar extension of the clamping leg (43) or at an acute angle to the planar extension of the clamping leg (43).

6. The terminal block according to any one of claims 3 to 5, characterized in that, The at least one connecting arm (61) has a higher moment of inertia in the longitudinal direction of the clamping leg (43) than the clamping leg (43).

7. The terminal block according to any one of the preceding claims, characterized in that, A pivot support (33) is provided on the side of the clamping leg (43) opposite to the deflection surface (60). When the deflection surface (60) is manipulated, the clamping leg (43) can be pivotally supported on the pivot support, so that the clamping leg (43) can pivotally move to the open position.

8. The terminal block according to any one of the preceding claims, characterized in that, The insulating housing (2) has at least one operating channel (22) in which an operating tool that is not part of the terminal (1) or a pressing member (7) that is part of the terminal (1) for operating the clamping leg (43) can be disposed.

9. The terminal block according to claim 8, characterized in that, The deflection surface (60) extends into the operating channel (22) or at least into a housing section of the insulating material housing (2) disposed in the extension of the operating channel (22).

10. The terminal block according to any one of claims 8 to 9, characterized in that, The control channel (22) can be accessed through the control opening (23) of the insulating material housing (2), which is located on the housing side (21) away from the wire inlet opening (20).

11. The terminal block according to any one of the preceding claims, characterized in that, The terminal block (1) has a retaining element (5) configured to hold the clamping leg (43) in the open position.

12. The terminal block according to claim 11, characterized in that, The retaining element (5) is disposed behind the clamping part (30) or behind most of the busbar (3) along the wire introduction direction (L).

13. The terminal block according to any one of the preceding claims, characterized in that, The spring-force clamping connector has a release element (8), which, when manipulated, allows the retaining element (5) to deflect until the clamping leg (43) held at the retaining element (5) is released from the retaining element (5).

14. The terminal block according to claim 13, characterized in that, When the wire to be clamped applies a manipulating force (B) to the release section (80) of the release element, the clamping leg (43) held in the holding element (5) in the open position can be released from the holding element (5).

15. The terminal block according to any one of the preceding claims, characterized in that, The retaining element (5) or the retaining-releasing element (5, 8) configured in combination with the releasing element (8) has at least one first and / or second empty portion (55, 56), the first and / or second empty portion being configured as an observation window for an inserted electrical wire, wherein the insulating material housing (2) is made of a transparent material at least in the area of ​​the observation window.

16. The terminal block according to any one of the preceding claims, characterized in that, The clamping spring (4) has a support section (41) configured to support the clamping spring (4) at the busbar (3).

17. The 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 out from the base section (40), and the support section (41) engages the busbar (3) from the rear with its fastening section (44), such that the busbar (3) is supported at the fastening section (44) and is at least partially disposed between the base section (40) and the fastening section (44).

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