Spring force clamp joint

Abstract

The present invention relates to a spring-force clamping connector (1) for connecting an electrical conductor (2), having a bus (100) for electrical contact with the conductor (2), having a clamping spring (200), wherein the clamping spring (200) has a clamping arm (210) and a contact arm (220) connected to the clamping arm (210), having a rotatably supported actuating element (400) for offsetting the clamping arm (210) from a closed position (GS) to an open position (OS), having a mechanical first coupling element (530, 535, 540, 550) for mechanically coupling the rotational movement of the actuating element (400) with the offset of the clamping arm (210).

Description

[0001] This application is a divisional application of the original invention application filed on March 12, 2020, with application number 202010169509.4 and invention title "Spring Force Clamping Joint". Technical Field

[0002] This invention relates to a spring-force clamping connector. Background Technology

[0003] A spring-force clamping connector, known as a terminal clamp, is known, for example, from document WO 2018 / 010893 A1. The terminal clamp for connecting electrical conductors has a housing, a current rod arranged within the housing, a clamping spring arranged within the housing, and an operating lever rotatably supported thereon. The clamping arm of the clamping spring has an operating plate, which is arranged such that pressure can be applied from the operating lever to the operating plate. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a spring force clamping joint with the best possible improvement.

[0005] Accordingly, a spring-force clamping connector for connecting electrical conductors is provided.

[0006] Spring-force clamping joints have busbars (or conductive rails) for electrical contact with conductors.

[0007] The spring-force clamping joint has a clamping spring, wherein the clamping spring has a clamping arm and a contact arm connected to the clamping arm.

[0008] The spring-loaded clamping joint has a rotatably supported actuating element for offsetting the clamping arm from a closed position to an open position.

[0009] The spring-loaded clamping joint has a first mechanical coupling element for mechanically coupling the rotational movement of the actuating element with the offset movement of the clamping arm.

[0010] According to an advantageous improved design, the contact arm has an opening. Advantageously, the first mechanical coupling element passes through the opening in the contact arm. Alternatively, the first mechanical coupling element is guided along the side of the contact arm, or the first mechanical coupling element has an opening through which the contact arm passes.

[0011] According to a favorable improved design, the control element is designed as a joystick for manual operation. Alternatively, the control element can be designed with an interface for operating tools.

[0012] According to the advantageous improved design, the opening in the clamping spring's abutment arm is closed on the circumferential side.

[0013] According to a favorable improved design, the opening is located in a centrally located area across the width of the abutment arm. The first coupling element of the mechanism passes through the opening in the centrally located area.

[0014] According to the advantageous improved design, the opening extends from the abutment arm, through the spring arch, and into the clamping arm.

[0015] According to the advantageous improved design, the opening has dimensions that allow the first coupling element of the mechanism to move within and / or perpendicular to the extension plane of the abutment arm.

[0016] According to a favorable improved design scheme, the first coupling element of the mechanism is designed to be integrated with the clamping spring. For example, this integration is achieved through the material fit or shape fit between the first coupling element of the mechanism and the clamping spring.

[0017] According to an advantageous improved design, the first coupling element of the mechanism is integrally formed with the clamping arm. For example, the first coupling element of the mechanism and the clamping arm of the clamping spring are integrally formed and bent from spring steel.

[0018] According to the advantageous improved design, the first coupling element of the machine is cut out from the central area of ​​the clamping arm and bent.

[0019] According to the advantageous improved design scheme, the first coupling element of the machine is designed to be integrated with the control element.

[0020] According to the advantageous improved design scheme, the first coupling element of the machine is designed as a separate element, which is supported on the actuating element and / or clamping arm for coupling of the machine.

[0021] Another aspect of the invention is a spring-loaded clamping connector for connecting electrical conductors. The spring-loaded clamping connector has a busbar for electrical contact with the conductors.

[0022] The spring-force clamping joint has a clamping spring, wherein the clamping spring has a clamping arm and a contact arm connected to the clamping arm.

[0023] The spring-loaded clamping joint has a rotatably supported actuating element for offsetting the clamping arm from a closed position to an open position.

[0024] The spring-loaded clamping joint has a first mechanical coupling element and a second mechanical coupling element, which are used to mechanically couple the rotational movement of the actuating element with the offset movement of the clamping arm.

[0025] According to a favorable improved design, the abutment arm has a first recess and a second recess. Advantageously, the first coupling element of the mechanism is arranged inside the first recess. The second coupling element of the mechanism is advantageously arranged inside the second recess. Alternatively, the first and second coupling elements of the mechanism are guided along the side of the abutment arm.

[0026] According to the advantageous improved design scheme, the first coupling element of the machine and / or the second coupling element of the machine are integrally formed with the clamping arm.

[0027] According to the advantageous improved design scheme, the first coupling element of the machine and / or the second coupling element of the machine are designed as an integral part of the actuating element or as separate elements.

[0028] According to an advantageous improved design, the operating element has at least one support device for supporting a first coupling element of the machine and / or a second coupling element of the machine.

[0029] According to an advantageous improved design, the support device is a bracket or a (linear) sliding support device.

[0030] According to an advantageous improved design, the first coupling element of the machine and / or the second coupling element of the machine have at least one support device for supporting the operating element.

[0031] Another aspect of the present invention provides a spring-force clamping connector for connecting electrical conductors.

[0032] Spring-clamped connectors have busbars for electrical contact with conductors.

[0033] The spring-force clamping joint has a clamping spring, wherein the clamping spring has a clamping arm.

[0034] The spring-loaded clamping joint has a rotatably supported actuating element for rotational movement between an open position and a closed position.

[0035] The actuating element is designed to deflect the clamping arm.

[0036] The actuating element has a first profile, which is mechanically coupled to the clamping arm by at least a portion of the rotational movement of the actuating element to perform the offset movement.

[0037] According to an advantageous improved design, the spring-force clamping joint has a housing. According to an advantageous improved design, the actuating element has a second profile, which is mechanically coupled to the abutment arm and / or to the busbar and / or to the housing by at least a portion of the rotational movement of the actuating element to perform the offset movement.

[0038] According to the advantageous improved design, the actuating element is supported such that the first portion of the offset is caused by the first profile, and the second portion of the offset is caused by the second profile.

[0039] According to the advantageous improved design scheme, the first profile is designed with at least some segments eccentrically.

[0040] According to the favorable improved design scheme, the second profile is designed with at least some segments eccentrically.

[0041] According to an advantageous improved design, the first portion of the offset is caused by a substantially rotational movement of the manipulator. According to an advantageous improved design, the second portion of the offset is caused by a substantially translational movement of the manipulator superimposed on the rotational movement.

[0042] According to the advantageous improved design scheme, the second profile is the outer profile of the control element.

[0043] According to the advantageous improved design scheme, the second profile is the internal profile of the control element.

[0044] According to the advantageous improved design, the second profile is spaced apart from the first profile at least radially along the instantaneous center based on the manipulator element.

[0045] According to the advantageous improved design, the second profile is spaced apart from the first profile at least along the circumference around the instantaneous center of the actuating element.

[0046] According to the advantageous improved design, the clamping arm has a first mechanical coupling element.

[0047] According to the advantageous improved design, the first profile and the first coupling element of the mechanism are mechanically coupled at least by said portion of the rotational movement of the actuating element for the offset of the clamping arm.

[0048] According to the advantageous improved design, for mechanical coupling, the first profile applies pressure to the first coupling element of the machine, which causes a pulling force in the first coupling element of the machine to deflect the clamping arm.

[0049] According to one aspect of the invention, a spring-loaded clamping connector is provided for connecting an electrical conductor. The spring-loaded clamping connector has a busbar for electrical contact with the conductor. The spring-loaded clamping connector has a clamping spring having at least one clamping arm. The spring-loaded clamping connector has a rotatably supported actuating element for offsetting the clamping arm. The spring-loaded clamping connector has a first mechanical coupling element for mechanically coupling the rotational movement of the actuating element with the offset of the clamping arm.

[0050] The indefinite article is not understood in the specification as a specific quantity. Therefore, "electric conductor" is understood as at least one electrical conductor, such that the spring-force clamping connector can connect exactly one, two, or more electrical conductors to the bus. "Bus" is understood as exactly one, two, or more busbars. "Clamping spring" is understood as exactly one, two, or more clamping springs. "Actuating element" is understood as exactly one, two, or more actuating elements. The bus may also be referred to as a current rod. The bus is optimized for electrical contact and conductivity and is, for example, made of copper or a copper alloy. The clamping spring is suitable for clamping electrical conductors. Advantageously, the clamping spring is formed and bent from spring steel. Advantageously, the clamping spring has exactly one clamping arm for clamping the mating electrical conductor, such that a single conductor is not clamped by two or more clamping arms of the clamping spring. The abutment arm of the clamping spring is designed to abut against a fixed area of ​​the spring-force clamping connector to withstand the reverse spring force. For example, the abutment arm abuts against the busbar and / or the housing. Advantageously, the connection is designed to be self-supporting via the clamping spring and busbar. The abutment arm is directly or indirectly connected to the clamping arm. For example, the abutment arm is connected to the clamping arm via a spring arch. Advantageously, the abutment arm, spring arch, and clamping arm are integrally formed and bent, or alternatively, the abutment arm and clamping arm are fixed to each other. The actuating element is designed to be operable and can be operated, for example, manually or with the aid of an actuating tool. The spring-force clamping joint has support devices and mating support devices for supporting the actuating element for rotational movement. The mating support devices for the actuating element are designed, for example, in the housing and / or busbar. Mechanical coupling elements are used to convert the rotational movement of the actuating element into the deflection of the clamping arm. For example, the first / second coupling element has one or more hinges and / or one or more rigid or at least partially flexible links and / or one or more support devices, etc. Improved designs and technical features in the claims and description, especially the designs shown with respect to the drawings, can be integrated into the spring-force clamping joint individually or in combination. Here, the invention is not limited to the specific designs shown in the drawings. Attached Figure Description

[0051] The design scheme of the present invention will be further described below with reference to the accompanying drawings. In the drawings:

[0052] Figure 1 An embodiment of the spring clamp is shown;

[0053] Figure 2 Another embodiment of the spring clamp is shown;

[0054] Figure 3 Another embodiment of the spring clamp is shown;

[0055] Figure 4 Another embodiment of the spring clamp is shown;

[0056] Figure 5 Another embodiment of the spring clamp is shown;

[0057] Figure 6 Another embodiment of the spring clamp is shown;

[0058] Figure 7 Another embodiment of the spring clamp is shown. Detailed Implementation

[0059] Figures 1 to 7 The image shows a partial view of different embodiments of the spring-force clamping connector. The spring-force clamping connector 1 enables the electrical connection of conductors (not shown). The conductor is, for example, a cable with one or more wires made of conductive metal, which constitute the cable core. The cable core is wrapped with insulating material. For the electrical connection, the conductor is clamped by a clamping spring 200. The spring force of the clamping spring 200 acts clampingly on the conductor. For example, the free end 211 of the clamping spring 200 forms a clamping edge 211, which presses into the conductor material and thereby significantly increases the pull-out force.

[0060] The spring-loaded clamping connector 1 has a busbar 100 for electrical contact with the conductor. The busbar 100 is advantageously made of a material with better conductivity than the clamping spring 200. Accordingly, the conductor is electrically connected to the busbar 100. The busbar 100 also has additional electrical terminals (not shown), such as fork-shaped contacts, for further electrical connections.

[0061] The spring-force clamping connector 1 further includes a housing 300, within which a busbar 100 and a clamping spring 200 are housed. Advantageously, the housing is constructed of an insulating material, such as plastic or ceramic. A housing is not mandatory in low-voltage applications. In the figures, the housing 300 is shown only partially and in section. The housing 300 has conductor guide channels for guiding the conductor to the clamping position. The figures show a spring-force clamping connector with exactly one busbar 100 and exactly one clamping spring 200. For multi-pole connection possibilities, the spring-force clamping connector 1 has a corresponding number of busbars 100 and clamping springs 200, which can be insulated from each other through the housing 300.

[0062] The clamping spring 200 has a clamping arm 210 and a contact arm 220 connected to the clamping arm 210. The clamping arm 210 and the contact arm 220 can be connected to each other by means of form fit, such as by means of cold rolling. Advantageously, the clamping arm 210 and the contact arm 220 of the clamping spring 200 are integrally formed and bent from a material such as spring steel. For example, the clamping arm 210 and the contact arm 220 are connected to each other by 180° folding. Figures 1 to 6As shown in the design, the clamping spring 200 has a clamping arm 210, a contact arm 220, and a spring arch 230 connecting the clamping arm 210 and the contact arm 220. The clamping spring 200 extends from the clamping arm 210, through the spring arch 230, to the contact arm 220.

[0063] The clamping spring 200 is supported by the abutment arm 220 relative to the spring force introduced by the clamping arm 210. This support is advantageously achieved by the abutment arm 220 against the busbar 100. As shown, the busbar 100 has a bottom region 110 and a busbar wall 120 designed to be angled relative to the bottom section 110, wherein a section 228 of the abutment arm 220 extends along the busbar wall 120, and another section 229 of the abutment arm 220 extends along the bottom region 110. The bottom region 110 of the busbar 100 forms a surface for contacting a conductor, wherein the other section 229 of the abutment arm 220 is arranged opposite to this surface. In the illustrated case, the busbar 100 passes through an opening 227 in the abutment arm 220. Of course, the busbar 100 may also be shaped in other ways and, for example, have an opening in which the abutment arm 220 hangs (not shown).

[0064] The spring-loaded clamping connector has a rotatably supported lever 400 as an operating element 400. The lever 400 has a gripping area 490 for manual operation. The lever 400 is designed to offset the clamping arm 210 from a closed position to an open position. In the open position, the clamping position for the electrical conductor is opened by the clamping arm and the bus. In the closed position, the clamping position is reversed and the conductor is not opened. The clamping spring 200 is designed to press a pre-placed electrical conductor against the bus 100 by means of the clamping arm 210 in the closed position. For example, the clamping edge 211 presses the conductor at its free end, thereby pressing the conductor against the bus 100 and forming an electrical contact at the bus 100.

[0065] In the embodiment shown in the accompanying drawings, the joystick 400 is positioned outside the conductor guiding area so that the conductor does not collide with a portion of the joystick during insertion. Consequently, the width of the conductor guiding channel 310 is optimized for conductors of the largest possible size.

[0066] The clamping position can be opened or closed by manually operating the lever 400 and shifting the clamping arm 210. If the lever 400 is in the closed position GS, such as... Figures 5 to 7 As shown, the clamping position is also closed. If the lever 400 is in the open position OS, as shown... Figures 1 to 4As shown, the clamping arm 210 is offset and the clamping position is open. In the open position OS, the conductor can be effortlessly driven into or out of the clamping position because, by manipulating the lever 400, the clamping edge 211 is moved forward from its contact position on the busbar 100 or on the electrical conductor by the offset of the clamping arm 210.

[0067] Furthermore, in the embodiment shown in the figures, a single-core solid conductor can be directly inserted, such that in the closed position GS, the conductor is guided through the conductor guide channel 310, and the clamping arm 210 of the clamping spring 200 is deflected by an additional pushing force, allowing the conductor to be inserted until it stops.

[0068] Then, further explanation is given in Figures 1 to 7 Individual features and differences in the embodiments. Here, different features of the embodiments may be combined with each other.

[0069] Figure 1 The spring-force clamping joint 1 of the embodiment has a first mechanical coupling element 530 for mechanically coupling the rotational movement of the lever 400 with the offset of the clamping arm 210 of the clamping spring 200. The lever 400 is partially housed in the housing 300, wherein the gripping area 490 of the lever 400 protrudes through an opening in the housing at the top side of the housing 300. A support device 450 for supporting the lever 400 is provided. Figure 1 In one embodiment, it is arranged inside the housing 300. Figure 1 In this embodiment, the joystick 400 is supported such that its instantaneous center (or base point) is fixed, thereby fixing the axis of rotation. For example, the joystick 400 has a cylindrical opening into which a cylindrical pin (not shown) of the housing 300 is mounted to form a rotary sliding support. Alternatively, the joystick 300 may be supported by means of the busbar 100 or by means of the abutment arm 220 of the clamping spring 200 (not shown).

[0070] exist Figure 1 In one embodiment, the joystick 400 has an operating area 410, which is segmentally formed radially in the shape of an eccentric wheel. The shape of the operating area 410 is... Figure 1 In some embodiments, it can even be described as tenon-shaped or nose-shaped. Here, the operating area 410 cooperates with the first coupling element 530 of the mechanism, so that the rotational movement of the control lever 400 is mechanically coupled to the offset of the clamping arm 210.

[0071] Manipulation area 410 in Figure 1In this embodiment, the width is equal to the width of the space between the two walls of the housing 300. The first coupling element 530 of the mechanism can thus be manipulated throughout the entire width of the space via the operating area 410. It is also possible that the operating area 410 has a guiding device for guiding the movement of the first coupling element 530 of the mechanism.

[0072] exist Figure 1 The control lever 400 is shown in the open position OS. Correspondingly, the clamping arm 210, which has been turned open, is also in the open position OS. The operating area 410 of the control lever 400 presses against the first coupling element 530 of the mechanism. This generates a pulling force in the first coupling element 530 of the mechanism, which pulls on the clamping arm 210 and deflects the clamping arm into the open position OS.

[0073] exist Figure 1 In one embodiment, the abutment arm 220 has an opening 290. Here, a first mechanical coupling element 530 passes through the opening 290 in the abutment arm 220. The opening 290 is positioned in a centrally located region relative to the width of the abutment arm 220. The first mechanical coupling element 530 passes through the opening 290 in this centrally located region. Figure 1 In one embodiment, the opening 290 is designed in the region of the abutment arm 220, which extends substantially in the same direction as the clamping arm 210 and is, for example, approximately parallel to the clamping arm. The lever 400 can thus be designed on one side of the abutment arm 220, while the clamping position is designed on the opposite side of the abutment arm 220.

[0074] The opening 290 in the abutment arm 220 is Figure 1 In this embodiment, the opening 290 is designed to be closed around the periphery. Here, the opening 290 is defined transversely to the main extension direction by the first and second connecting pieces 221, 222 of the abutment arm 220. For example, the opening 290 in the abutment arm 220 is formed by a punching process. Figure 1 The embodiments described herein can achieve a particularly narrowly constructed spring-force clamping connector 1. The abutment arm 220 of the clamping spring 200 can extend in width to the wall of the housing 300 because it is not necessary to guide movable elements on the side of the abutment arm 220.

[0075] exist Figure 1 In one embodiment, the first coupling element 530 of the mechanism and the clamping arm 210 of the clamping spring 200 are integrally formed and bent. Here, the first coupling element 530 of the mechanism is laterally connected to the clamping arm 210 relative to the main extension direction of the clamping arm 210, where it is bent about 180° and then bent about 90° toward the lever 400, and passes through the opening 290 in the abutment arm 220.

[0076] The opening 290 in the abutment arm 220 is sized such that the first mechanical coupling element 530 can move within the opening 290. Figure 1 In one embodiment, the movement of the first mechanical coupling element 530 inside the opening 290 is not only along the main extension direction of the opening 290, but also transverse to the main extension direction of the opening 290.

[0077] exist Figure 2 In one embodiment, the joystick 400 has an operating area 410 and a device 419 for supporting the first coupling element 540. For example, an eyelet 419 is provided in the operating area 410 as a support device. Figure 2 The support device 419 in the embodiment is shown only schematically. Alternatively, a hinge or similar device could also be used.

[0078] exist Figure 2 In this design, the first coupling element 540 of the mechanism is a separate coupling element 540, which is supported on the operating lever 400 and the clamping arm 220 for mechanical coupling. For this purpose, the first coupling element 540 of the mechanism has support devices 541, 542, and 543. Here, the support devices 541, 542, and 543 are... Figure 2 The embodiments are shown in a greatly simplified manner. Alternatively, support devices such as membrane hinges, brackets, swivel supports, or the like may be specified. Figure 2 In one embodiment, when the clamping arm 210 is deflected due to the advancement of the conductor (not shown), the individual coupling element 540 moves along with it.

[0079] exist Figure 2 The control lever 400 is shown in the open position OS. Correspondingly, the clamping arm 210 is offset in the open position OS. During the opening movement, the operating area 410 of the control lever 400 presses against the first coupling element 540 of the individual mechanism. This generates a pulling force in the first coupling element 540 of the mechanism, which pulls on the clamping arm 210 and offsets the clamping arm into the open position OS. The first coupling element 540 of the individual mechanism may be made of, for example, bend-resistant or resilient plastic or metal. The first coupling element 540 of the individual mechanism in... Figure 2 In this embodiment, it is supported in the opening 209 of the clamping arm 210 of the clamping spring 200. The mechanical characteristics of the first coupling element 540 can be optimized separately from the mechanical characteristics of the clamping spring 200 and the lever 400 through a separate first coupling element 540.

[0080] exist Figure 3 In the embodiments, compared to Figure 2The embodiment differs in that the opening 291 in the abutment arm 220 extends through the spring arch 230 into the clamping arm 210. Here, the first mechanical coupling element 535 is still arranged in the central region of the width of the opening 291 in the abutment arm 220. Figure 3 In one embodiment, the first coupling element 535 of the mechanism is integrally formed with the clamping spring 200 by punching and bending the first coupling element 535 in a central region of the clamping spring width, such that the first coupling element 535 passes through the opening 291 created by the punching process and is supported in the operating lever 400 by a support element 531 for operation. Here, the opening 291 is only slightly wider than the first coupling element 535 of the mechanism by the punching process, allowing the coupling element 535 of the mechanism to move freely within the opening 291. Figure 3 In this embodiment, the width of the clamping spring 200 can be maximized within the inner wall of the housing 300. In this embodiment, there is no area where the clamping spring 200 bends inward from its edge. There is not even a need to provide recesses for the abutment arm 220 and / or the clamping arm 210 for the element to pass alongside one arm 210, 220.

[0081] Figure 4 The spring-force clamping joint 4 of the embodiment has a first mechanical coupling element 510 and a second mechanical coupling element 520 for mechanically coupling the rotational movement of the lever 400 with the offset of the clamping arm 210 of the clamping spring 200. The lever 400 is partially housed in the housing 300, wherein the gripping area 490 of the lever 400 protrudes through an opening in the housing at the top side of the housing 300. A support device for supporting the lever 400 is provided. Figure 4 In one embodiment, it is arranged inside the housing 300. Figure 4 In one embodiment, the lever 400 is supported such that its instantaneous center is fixed, thereby fixing the axis of rotation. In another embodiment, the lever 400 has a cylindrical tenon 451 that is fitted into a cylindrical opening (not shown) in the housing 300 to form a rotational sliding support. Alternatively, the lever 300 may be supported by means of the busbar 100 or by means of the abutment arm 220 of the clamping spring 200 (not shown).

[0082] exist Figure 4 In one embodiment, the joystick 400 has an operating area 410, which is segmentally formed radially in the shape of an eccentric wheel. The shape of the operating area 410 is... Figure 4In some embodiments, it can even be described as tenon-shaped or nose-shaped. Here, the operating area 410 cooperates with the first mechanical coupling element 510 and the second mechanical coupling element 520, so that the rotational movement of the lever 400 is mechanically coupled to the offset of the clamping arm 210. The first mechanical coupling element 510 and the second mechanical coupling element 520 are designed for the mechanical coupling of the rotational movement of the lever 400 and the offset of the clamping arm 210. For mechanical coupling, the operating area 410 has a first guide groove 421, which serves as a sliding support device for guiding the first mechanical coupling element 510, and the operating area 410 has a second guide groove 422, which serves as a sliding support device for guiding the second mechanical coupling element 520.

[0083] The first coupling element 510 and the second coupling element 520 of the machine are in Figure 4 In this embodiment, the clamping arm 210 is integrally formed with the clamping spring 200. Here, the first mechanical coupling element 510 and the second mechanical coupling element 520 are laterally deformed at approximately 90° in the region of the clamping arm 210 by the material of the clamping spring 200 and pass beside the abutment arm 220 of the clamping spring 200. The lever 400 can thus be arranged above the conductor guiding region. Through the design of the first mechanical coupling element 510 and the second mechanical coupling element 520, the adjusting force for offsetting the clamping arm 210 can act on both sides of the clamping arm 210, thereby preventing the clamping spring from twisting or tilting, so as to reduce the lateral force on the housing 300.

[0084] exist Figure 4 In one embodiment, the abutment arm 220 of the clamping spring 200 has a first recess 225 and a second recess 226. Figure 4 In one embodiment, the widths of the first recess 225 and the second recess 226 are opposite to those of the abutment arm 220, such that the width of the abutment arm 220 becomes narrower between the first recess 225 and the second recess 226.

[0085] The first coupling element 510 of the mechanism is arranged inside the first recess 225, and the second coupling element 520 of the mechanism is arranged in the second recess 226. The length and arrangement of the recesses 225 and 226 are designed, at least in terms of the movement of the coupling elements 510 and 520, such that the coupling elements 510 and 520 collide with the abutment arm 220 as little as possible during the rotational movement of the lever 400. Furthermore, the recesses can also be designed to be longer.

[0086] Compared to Figure 4 Alternatively, in the embodiments described, the first mechanical coupling element 510 and / or the second mechanical coupling element 520 are designed as an integral part of the joystick 400. It is also possible, similar to... Figure 2In one embodiment, the two mechanical coupling elements 510 and 520 are designed as separate elements.

[0087] Alternatively, it is even feasible for the first coupling element 510 and / or the second coupling element 520 of the mechanism to have, for example, support devices for supporting the control lever. Figure 4 (Not shown in the image). With Figure 4 Unlike the previous embodiment, the mechanical coupling elements 510 and 520 are for connecting the operating section 410 of the lever 400, and are thus configured similarly to... Figure 5 The bracket for the operating section 410 in the embodiment.

[0088] exist Figure 5 In this embodiment, a partial view shows the spring-forced clamping joint 1 in the closed position GS. The actuating element is designed as a lever 400 for offsetting the clamping arm 210 of the clamping spring 200. The lever 400 has a first profile 460. The first profile 460 is designed as an outer profile. The first profile 460 and the clamping arm 210 are mechanically coupled for offset by at least a portion of the rotational movement of the lever 400. Figure 5 In this embodiment, the first profile 460 and the clamping arm 210 are mechanically coupled via a first mechanical coupling element 550. The first mechanical coupling element 550 is fixedly connected to the clamping arm 210, for example, supported on the clamping arm or as... Figure 5 As shown, it is an integrated design with the clamping arm 210. Accordingly, in Figure 5 In one embodiment, the clamping arm 210 has a first mechanical coupling element 550. For example, the first mechanical coupling element 550 is integrally formed with a clamping spring 200 made of metal, such as spring steel. Figure 5 In one embodiment, the first mechanical coupling element 550 has a bracket 551, which contacts the first profile 460 for mechanical coupling via at least a portion of the rotational movement of the lever 400, such that a force acting on the bracket 551 causes the clamping arm 210 to deflect. Figure 5 In one embodiment, the first profile 460 is designed with at least a segmented eccentricity.

[0089] The first profile 460 and the first mechanical coupling element 550 are mechanically coupled by at least the portion thereof via the rotational movement of the lever 400 to offset the clamping arm 210. Figure 5 As shown, a free travel setting can also be provided to allow for better manual gripping of the control handle 490.

[0090] exist Figure 5In one embodiment, the first profile 460 applies pressure to the first mechanical coupling element 550 via a bracket 551 for mechanical coupling. This pressure induces a pulling force in the first mechanical coupling element 550 for deflecting the clamping arm 210. Here, in Figure 5 In the middle, the clamping arm 210 is pulled up to a certain extent in order to open the clamping position K. However, in Figure 5 The diagram shows the state in the closed position GS and the closed clamping position K.

[0091] exist Figure 5 In one embodiment, the joystick 400, serving as the control element, has a second profile 470. The second profile 470 is also designed as an outer profile. Figure 5 In one embodiment, the second profile 470 has an eccentric shape. During operation, the joystick 400 performs a rotational motion, with its instantaneous center at... Figure 5 In this embodiment, it is essentially defined by the support pin 452. Figure 5 The diagram shows a first distance d1, the first distance dimension being from the outer contour 470 of the joystick 400 to the instantaneous center. Figure 5 The second distance d2 is shown, which is a distance from the outer contour 470 of the joystick 400 to the instantaneous center, but offset by a rotation angle, for example, 90°.

[0092] exist Figure 5 In one embodiment, the second profile 470 and the housing 300 are mechanically coupled for offset by at least a portion of the rotational movement of the lever 400. Figure 5 In the middle, the housing wall 340 and the second profile 470 are in contact for mechanical coupling. If the operating handle 490 is in Figure 5 Rotate upwards to the open position (in) Figure 5 (not shown in the diagram), then the second profile 470 continues to contact the housing wall 340. However, in the open position, the second distance d2 applies between the housing wall 340 and the instantaneous center. If the second distance d2 is greater than the first distance d1, such as Figure 5 As shown in the embodiment, the instantaneous center shifts in the opposite direction to the conductor insertion direction ER.

[0093] Compared to Figure 5 Alternatively, in one embodiment, the second profile 470 is mechanically coupled to the abutment arm 220 or the busbar 100 via at least a portion of the rotational movement of the lever 400 for offset. For example, in Figure 5 In this case, the housing wall 340 can be easily replaced by a section of the busbar 100 or a section of the abutment arm 220. It is even feasible for an assembly of the housing 300 and / or the busbar 100 and / or the abutment arm 220 to form a support for the second profile 470.

[0094] exist Figure 5 In this embodiment, the lever 400 is supported such that a first portion of the offset of the clamping arm 210 is triggered by a first profile 460, and a second portion of the offset of the clamping arm 210 is caused by a second profile 470. To produce a cumulative effect, none of the portions should be too small. For example, the second portion is at least 20%. For example, the first portion is at least 20%. For example, it is feasible for the first and second portions to be approximately 50% for offsetting the clamping arm 210.

[0095] As in Figure 5 As shown in the embodiment, the second profile 470 is designed at least partially eccentrically. The second profile 470 is circumferentially away from the first profile 460 at least along the instantaneous center of rotational movement about the lever 400. Figure 5 In one embodiment, the first contour 460 and the second contour 470 are opposite each other relative to the instantaneous center.

[0096] exist Figure 5 In one embodiment, the lever 400 has a pin 452 for support, which is guided in an elongated hole 352 that serves as a mating support. Alternatively or additionally, the lever 400 may be guided by a sliding surface 353. The elongated hole 352 and the sliding surface may, for example, be designed in the housing 300 of the spring-forced clamping connector 1.

[0097] In order to continue to electrically connect the spring-force clamping connector 1, for example, to the component assembly, plug connector, or circuit board, Figure 5 In the embodiments shown, the blade contact 130 is exemplarily illustrated as a terminal. Alternatively, other contacts, such as fork contacts, can be used for other electrical connections.

[0098] exist Figure 6 In this embodiment, a partial view shows the spring-forced clamping connector 1 in the closed position GS. The actuating element is designed as a lever 400 for offsetting the clamping arm 210 of the clamping spring 200. The lever 400 has a first profile 460, similar to... Figure 5 An embodiment. The first contour 460 is also designed as an outer contour. Accordingly, refer to Figure 5 The description of the first contour 460 in the text.

[0099] exist Figure 6 In one embodiment, the joystick 400, serving as the control element, has a second profile 471. The second profile 471 is designed as an inner profile. During operation, the joystick 400 performs a rotational motion, with its instantaneous center at... Figure 6 In this embodiment, it is essentially defined by the support pin 452. Figure 6 The diagram shows a first distance d1, the dimension of which is from the inner contour 471 of the joystick 400 to the instantaneous center. Figure 6The second distance d2 is shown, which is a distance from the inner profile 471 of the joystick 400 to the instantaneous center, but offset by a rotation angle, such as 90°.

[0100] exist Figure 6 In one embodiment, the second profile 471 and the housing 300 are mechanically coupled for offset by at least a portion of the rotational movement of the lever 400. For this purpose, a fixed support rod 479 is provided, which is guided during rotational movement within the second profile 471, which is shaped like a track. Figure 6 The central support rod 479 is fixedly positioned within the housing 300. If the operating handle 490 is... Figure 6 Rotate upwards to the open position (in) Figure 6 (not shown in the diagram), then the support rod 479 is in the final position in the second profile 471. However, in the open position, the second distance d2 applies between the support rod 479 and the instantaneous center. If the second distance d2 is greater than the first distance d1, such as Figure 6 As shown in the embodiment, the instantaneous center shifts in the opposite direction to the conductor insertion direction ER.

[0101] Compared to Figure 6 Alternatively, in one embodiment, the support rod 479 is fixedly attached to the abutment arm 220 or the busbar 100, such that the second profile 471 is mechanically coupled for offset.

[0102] exist Figure 6 In this embodiment, the lever 400 is supported such that a first portion of the offset of the clamping arm 210 passes through a first profile 460, and a second portion of the offset of the clamping arm 210 is created through a second profile 471. To produce a superimposed effect, all portions should not be too small. For example, the second portion is at least 20%. For example, the first portion is at least 20%. For example, it is feasible for the first and second portions to be approximately 50% for offsetting the clamping arm 210.

[0103] As in Figure 6 As shown in the embodiment, the second profile 471 is designed with at least a partial eccentricity. The second profile 471 is spaced apart from the first profile 460 not only circumferentially around the instantaneous center of the rotational movement of the lever 400, but also radially.

[0104] exist Figure 6As shown in the embodiment, the lever 400 has a support pin 452, which is supported in an elongated hole 352 in the housing 300. Alternatively, the elongated hole 352 may be designed in a portion of the abutment arm 220 of the clamping spring 200 or in a portion of the busbar 100. During the rotational movement of the lever 400, it performs a rotation about an instantaneous center. This rotational component of the lever 400 causes a first portion of the offset of the clamping arm 210. This rotational component is superimposed with a translational component, wherein the translational movement of the instantaneous center is caused by a second profile 471. The instantaneous center moves within the elongated hole 352 opposite to the conductor insertion direction ER. Here, a second portion of the offset of the clamping arm 210 of the clamping spring 200 is caused by the substantially translational movement of the lever 400.

[0105] exist Figure 7 In this embodiment, a partial view shows the spring-forced clamping connector 1 in the closed position GS, which is used to connect the electrical conductor 2. The actuating element is designed as a lever 400, which is used to deflect the clamping arm 210 of the clamping spring 200. The lever 400 has a first profile 460, similar to... Figure 5 An embodiment. The first contour 460 is also designed as an outer contour. Accordingly, refer to Figure 5 The description of the first contour 460 in the text.

[0106] exist Figure 7 In one embodiment, the joystick 400, serving as the control element, has a second profile 472. The second profile 472 is designed as an inner profile. Figure 7 In one embodiment, the second profile 472 and the housing 300 are mechanically coupled for offset by at least a portion of the rotational movement of the lever 400. For this purpose, a fixed support rod 479 is provided, which is guided during rotational movement within the second profile 472, which is shaped like a track. Figure 7 In the middle, the support rod 479 is fixedly limited in the housing 300 and / or the abutment arm 220 and / or the busbar 100. If the operating handle 490 is in Figure 7 Rotate upwards to the open position (in) Figure 7 (not shown in the diagram), then the support rod 479 is in its final position in the second profile 472. The instantaneous center shifts in the opposite direction to the conductor insertion direction ER.

[0107] exist Figure 7 In this embodiment, the second profile 472 is only radially spaced from the first profile 460. The two profiles 460 and 470 increase the travel and decisively contribute to the offset of the clamping arm 220 of the clamping spring 200. As in Figure 7 As shown in the embodiment, the second profile 472 is designed in the form of a track.

[0108] This invention is not limited to the embodiments shown. Features of different embodiments can be combined with each other. It is even possible for the second contour to be designed using other geometries.

[0109] List of reference numerals

[0110] 1. Spring-loaded clamping connector

[0111] 100 bus

[0112] 110 Bottom area, bottom section

[0113] 120 busbar

[0114] 130 connector, blade contact

[0115] 200 Clamping Spring

[0116] 209 Opening

[0117] 210 Clamping Arm

[0118] 211 Clamping edge

[0119] 220 support arm

[0120] 221, 222 connecting pieces

[0121] 225, 226 concave part

[0122] 227 Opening

[0123] 228, 229, abutting arm sections

[0124] 230 Spring arch, spring root

[0125] Openings at 290 and 291

[0126] 300 housing

[0127] 310 Conductor Guiding Channel

[0128] 352 support, elongated hole

[0129] 400 joystick

[0130] 410 Control area, control section

[0131] 419 Support device, eyelets

[0132] 450, 451 Rotary bearing device

[0133] 452 Rotary bearing device, pin

[0134] Outlines 460, 470, 471, 472

[0135] 479 support rod

[0136] 490 Grip section

[0137] 510, 520, 530, 535, 540, 550 Mechanical coupling elements

[0138] Support components 531, 541, 542, 543, and 551

[0139] Distance between d1 and d2

[0140] ER insertion direction

[0141] GS Closed Position

[0142] K Clamping position

[0143] OS Open Location

Claims

1. A spring-force clamping connector (1) for connecting electrical conductors, - A busbar (100) having electrical contacts for electrical conductors, - It has a clamping spring (200) having a clamping arm (210). - It has a rotatably supported actuating element (400) for offsetting the clamping arm (210) from a closed position (GS) to an open position (OS). - The actuating element (400) has a segmented actuating section (410) formed radially in the form of an eccentric wheel. The operating section (410) works in conjunction with the first coupling element (510) and the second coupling element (520) of the machine, so that the rotational movement of the operating element (400) is mechanically coupled to the offset of the clamping arm (210).

2. The spring-loaded clamping connector (1) according to claim 1, in, The first coupling element (510) and the second coupling element (520) overlap the operating section (410) to form a support for the operating section (410).

3. The spring-force clamping connector (1) according to claim 1 or 2, in, The first coupling element (510) and / or the second coupling element (520) have at least one support device (551) for supporting the actuating element (400).

4. The spring-loaded clamping connector (1) according to claim 3, in, The support device (551) is a bracket or a sliding support device.

5. The spring-loaded clamping connector (1) according to claim 4, in, The support of the first coupling element (510) contacts the outer contour of the actuating section (410) for mechanical coupling by at least a portion of the rotational movement of the actuating element (400).

6. The spring-loaded clamping connector (1) according to claim 4, in, The outer contour of the operating section (410) applies pressure to the first coupling element (510) through the support of the first coupling element (510) for mechanical coupling.

7. The spring-loaded clamping connector (1) according to claim 1 or 2, in, The first coupling element (510) and the second coupling element (520) are either integrally designed with the actuating element (400) or designed as separate elements.

8. The spring-force clamping connector (1) according to claim 1 or 2, in, The clamping spring (200) has a contact arm (220) connected to the clamping arm (210), the actuating element (400) is designed on one side of the contact arm (220), and / or the clamping position for the electrical conductor, determined by the clamping arm (210) and the busbar (100), is designed on the opposite side of the contact arm (220).

9. The spring-force clamping connector (1) according to claim 1 or 2, in, The width of the operating section (410) is equal to the width of the space between the two walls of the housing (300).

10. The spring-force clamping connector (1) according to claim 1 or 2, in, The control element (400) is provided with a free travel.

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