DE102020105813A1 - Spring clamp connection - Google Patents

Abstract

Spring-loaded terminal connection (1) for connecting an electrical conductor (2), with a busbar (100) for making electrical contact with the conductor (2), with a clamping spring (200), the clamping spring (200) having a clamping leg (210) and one with the Clamping leg (210) connected contact leg (220), with a pivotably mounted actuating element (400) for deflecting the clamping leg (210) into an open position (OS) from a closed position (GS), with a first mechanical coupling element (530, 535, 540 , 550), for the mechanical coupling of the pivoting movement of the actuating element (400) with the deflection of the clamping leg (210), in which the contact leg (220) has an opening (290, 291), and in which the first mechanical coupling element (530, 535 , 540, 550) passes through the opening (290,291) in the contact leg (220).

Description

The invention relates to a spring-loaded terminal connection.

A spring-loaded terminal connection referred to as a connection terminal is, for example, from FIG WO 2018/010893 A1 known. The connecting terminal for connecting an electrical conductor has a housing, a current bar arranged in the housing, a clamping spring arranged in the housing and a pivotably mounted actuating lever. The clamping leg of the clamping spring has an actuating tab which is arranged such that a compressive force can be applied to the actuating tab by the actuating lever.

The present invention is based on the object of creating a spring-loaded terminal connection that is as improved as possible.

This object is achieved by the features of claim 1. Advantageous developments are the subject of the dependent claims.

Accordingly, a spring-loaded terminal connection is provided for connecting an electrical conductor.

The spring-loaded terminal connection has a busbar for making electrical contact with the conductor.

The spring-loaded terminal connection has a clamping spring, the clamping spring having a clamping leg and a contact leg connected to the clamping leg.

The spring-loaded terminal connection has a pivotably mounted actuating element for deflecting the clamping leg into an open position from a closed position.

The spring-loaded terminal connection has a first mechanical coupling element for the mechanical coupling of the pivoting movement of the actuating element with the deflection of the clamping leg.

According to an advantageous development, the contact leg has an opening. The first mechanical coupling element advantageously reaches through the opening in the contact leg. Alternatively, the first mechanical coupling element can be guided laterally past the contact leg or the first mechanical coupling element has an opening through which the contact leg extends.

According to an advantageous development, the actuating element is designed as an actuating lever for manual actuation. Alternatively, it is possible to design the actuating element with an interface for an actuating tool.

According to an advantageous development, the opening in the contact leg of the clamping spring is closed on the circumferential side.

According to an advantageous development, the opening is formed in a central area of the width of the contact leg. The first mechanical coupling element reaches through the opening in the central area.

According to an advantageous further development, the opening extends, starting from the contact leg, beyond the spring bow and into the clamping leg.

According to an advantageous development, the opening has a size that allows movement of the first mechanical coupling element within and / or perpendicular to the plane of extent of the contact leg.

According to an advantageous development, the first mechanical coupling element is designed in one piece with the clamping spring. For example, the one-piece structure is formed by a material fit or a form fit between the first mechanical coupling element and the clamping spring.

According to an advantageous development, the first mechanical coupling element is formed in one piece with the clamping leg. For example, the first mechanical coupling element and the clamping leg of the clamping spring are formed in one piece from a spring steel and are bent.

According to an advantageous development, the first mechanical coupling element is cut free from a central region of the clamping leg and bent over.

According to an advantageous development, the first mechanical coupling element is designed in one piece with the actuating element.

According to an advantageous development, the first mechanical coupling element is designed as a separate element which is mounted on the actuating element and / or on the clamping leg for mechanical coupling.

Another aspect of the invention is a spring-loaded terminal connection for connecting an electrical conductor. The spring clamp connection has a busbar for making electrical contact with the conductor.

The spring-loaded terminal connection has a clamping spring, the clamping spring having a clamping leg and a contact leg connected to the clamping leg.

The spring-loaded terminal connection has a pivotably mounted actuating element for deflecting the clamping leg into an open position from a closed position.

The spring-loaded terminal connection has a first mechanical coupling element and a second mechanical coupling element for mechanically coupling the pivoting movement of the actuating element with the deflection of the clamping leg.

According to an advantageous development, the contact leg has a first indentation and a second indentation. The first mechanical coupling element is advantageously arranged within the first indentation. The second mechanical coupling element is advantageously arranged within the second indentation. Alternatively, the first mechanical coupling element and the second mechanical coupling element are guided laterally past the contact leg.

According to an advantageous development, the first mechanical coupling element and / or the second mechanical coupling element are formed in one piece with the clamping leg.

According to an advantageous development, the first mechanical coupling element and / or the second mechanical coupling element are formed in one piece with the actuating element or as separate elements.

According to an advantageous development, the actuating element has at least one bearing for mounting the first mechanical coupling element and / or the second mechanical coupling element.

According to an advantageous development, the bearing is a support or a (linear) sliding bearing.

According to an advantageous development, the first mechanical coupling element and / or the second mechanical coupling element has at least one bearing for mounting the actuating element.

Another aspect of the invention provides a spring-loaded terminal connection for connecting an electrical conductor.

The spring-loaded terminal connection has a busbar for making electrical contact with the conductor.

The spring-loaded terminal connection has a clamping spring, the clamping spring having a clamping leg.

The spring-loaded terminal connection has a pivotably mounted actuating element for a pivoting movement between an open position and a closed position.

The actuating element is designed to deflect the clamping leg.

The actuating element has a first contour which is mechanically coupled to the clamping leg via at least part of the pivoting movement of the actuating element for deflection.

According to an advantageous further development, the spring-loaded terminal connection has a housing. According to an advantageous development, the actuating element has a second contour that is mechanically coupled to the contact leg and / or to the busbar and / or to the housing via at least part of the pivoting movement of the actuating element for deflection.

According to an advantageous development, the actuating element is mounted in such a way that a first portion of the deflection is caused by the first contour and a second portion of the deflection is caused by the second contour.

According to an advantageous development, the first contour is at least partially eccentric.

According to an advantageous development, the second contour is at least partially eccentric.

According to an advantageous development, the first portion of the deflection is caused by a predominantly rotary movement of the actuating element. According to an advantageous development, the second portion of the deflection is brought about by a predominantly translational movement of the actuating element that overlaps the rotary movement.

According to an advantageous development, the second contour is an outer contour of the actuating element.

According to an advantageous development, the second contour is an inner contour of the actuating element.

According to an advantageous development, the second contour is spaced apart from the first contour at least in the radial direction starting from the instantaneous pole of the actuating element.

According to an advantageous development, the second contour is spaced from the first contour at least in the circumferential direction by an instantaneous pole of the actuating element.

According to an advantageous development, the clamping leg has a first mechanical coupling element.

According to an advantageous development, the first contour is mechanically coupled to the first mechanical coupling element via at least the part of the pivoting movement of the actuating element in order to deflect the clamping leg.

According to an advantageous development, for mechanical coupling, the first contour exerts a compressive force on the first mechanical coupling element, which in the first mechanical coupling element produces a tensile force for deflecting the clamping leg.

According to one aspect of the invention, a spring-loaded terminal connection is provided for connecting an electrical conductor. The spring-loaded terminal connection has a busbar for making electrical contact with the conductor. The spring-loaded terminal connection has a clamping spring which has at least one clamping leg. The spring-loaded terminal connection has a pivotably mounted actuating element for deflecting the clamping leg. The spring-loaded terminal connection has a first mechanical coupling element for the mechanical coupling of the pivoting movement of the actuating element with the deflection of the clamping leg.

The indefinite article “a” or “an” does not mean a specific number in the description. An electrical conductor is to be understood as meaning at least one electrical conductor, so that precisely one, two or more electrical conductors can be connected to a busbar by means of the spring-loaded terminal connection. A power rail is to be understood as exactly one, two or more power rails. A clamping spring is to be understood as precisely one, two or more clamping springs. An actuating element is to be understood as precisely one, two or more actuating elements. The power rail can also be referred to as a power bar. The busbar is optimized for electrical contacting and electrical conductivity and has, for example, copper or a copper alloy. The clamping spring is suitable for clamping the electrical conductor. The clamping spring is advantageously formed and bent from a spring steel. The clamping spring advantageously has exactly one clamping leg for clamping an associated electrical conductor, so that one and the same conductor is not clamped by two or more clamping legs of the clamping spring. The contact leg of the clamping spring is designed for contact with a stationary area of the spring-loaded clamping connection in order to absorb the retroactive spring force. For example, the contact leg rests against the busbar and / or the housing. The connection is advantageously designed to be self-supporting by means of a clamping spring and busbar. The contact leg is connected directly or indirectly to the clamping leg. For example, the contact leg is connected to the clamping leg via a spring arch. Advantageously, contact limbs, spring arches and clamping limbs are formed in one piece and bent, or alternatively contact limbs and clamping limbs are fastened to one another. The actuating element is designed to be actuatable and can, for example, be actuated manually or by means of an actuating tool. The spring-loaded terminal connection has bearings and counter bearings for mounting the actuating element for a pivoting movement. The counter bearing for the actuating element is formed, for example, in the housing and / or in the busbar. The mechanical coupling element is used to convert the pivoting movement of the actuating element into the deflection of the clamping leg. For example, the first / second coupling element has one or more joints and / or one or more rigid or at least partially flexible coupling rods and / or one or more bearings or the like. The developments and features in the claims and in the description, in particular the configurations explained in relation to the figures, can be integrated individually or in combination in the spring-loaded terminal connection. The invention is not limited to the specific configurations shown in the figures.

• Fig .1 ein Ausführungsbeispiel einer Federanschlussklemme;
• 2 ein weiteres Ausführungsbeispiel einer Federanschlussklemme;
• 3 ein weiteres Ausführungsbeispiel einer Federanschlussklem me;
• 4 ein weiteres Ausführungsbeispiel einer Federanschlussklemme;
• 5 ein weiteres Ausführungsbeispiel einer Federanschlussklemme;
• 6 ein weiteres Ausführungsbeispiel einer Federanschlussklemme;
• 7 ein weiteres Ausführungsbeispiel einer Federanschlussklemme.

In the following, embodiments of the invention are explained in more detail with reference to the drawings. Show:

• 1 shows an exemplary embodiment of a spring connection terminal;
• 2 a further embodiment of a spring connection terminal;
• 3 another embodiment of a spring connection terminal me;
• 4th a further embodiment of a spring connection terminal;
• 5 a further embodiment of a spring connection terminal;
• 6th a further embodiment of a spring connection terminal;
• 7th a further embodiment of a spring connection terminal.

In the 1 to 76 are different embodiments of a spring-loaded terminal connection 1 shown in partial view. The spring clamp connection 1 enables a conductor (not shown) to be electrically connected. The conductor is, for example, a cable with one or more wires made of electrically conductive metal that form the core of the cable. The wire is coated with insulating material. The conductor is provided with a clamping spring for electrical connection 200 clamped. The spring force of the clamping spring 200 has a clamping effect on the conductor. For example, forms a free end 211 the clamping spring 200 a clamping edge 211 that penetrates the material of the conductor and thus significantly increases the pull-out force.

The spring clamp connection 1 has a power rail 100 for electrical contacting of the conductor. The power rail 100 is advantageously made of a material that has a better electrical conductivity than the clamping spring 200 . Accordingly, the conductor becomes electrical with the busbar 100 connected. The power rail 100 also has a further electrical connection (not shown) - for example a fork contact for further electrical connection.

The spring clamp connection 1 also has a housing 300 on where the power rail 100 and the clamp spring 200 are included. The housing is advantageously formed from an insulating material, for example plastic or ceramic. A housing is not absolutely necessary in low voltage applications. In the figures is the case 300 shown only partially and in section. The case 300 has a conductor guide channel for guiding the conductor to the terminal point. In the figures, there is a spring-loaded terminal connection with exactly one busbar 100 and exactly one spring clip 200 shown. The spring-cage terminal connection is used for multi-pole connection options 1 a corresponding number of busbars 100 and clamp springs 200 on that through the case 300 can be isolated from each other.

The clamping spring 200 has a clamping leg 210 and one with the clamp leg 210 connected contact leg 220 on. Clamp leg 210 and contact legs 220 can be connected to one another by means of a form fit, for example by clinching. Clamping legs are advantageous 210 and contact legs 220 the clamping spring 200 from a material, for example spring steel, molded in one piece and bent. For example, are clamping legs 210 and contact legs 220 connected to each other via a 180 ° fold. In the 1 to 6th is shown in one embodiment that the clamping spring 200 the clamp leg 210 and the contact leg 220 and a clamp leg 210 and contact legs 220 connecting spring bow 230 having. The clamping spring 200 extends starting from the clamping leg 210 over the feather bow 230 to the contact leg 220 .

About the contact leg 220 is the clamping spring 200 compared to that of the clamp leg 210 initiated spring force supported. The support is advantageously carried out by contacting the contact leg 220 on the power rail 100 . It is shown that the busbar 100 a floor area 110 and one at an angle to the bottom section 110 trained busbar wall 120 having, with a section 228 of the contact leg 220 along the busbar wall 120 and another section 229 of the contact leg 220 along the floor area 110 extends. The floor area 110 the power rail 100 forms a surface for contacting the conductor, the further section 229 of the contact leg 220 is arranged opposite to the surface. In the case shown, the busbar reaches through 100 an opening 227 of the contact leg 220 . Of course, the power rail can 100 can also be shaped differently and, for example, have an opening into which the contact leg 220 is attached (not shown).

The spring-loaded terminal connection has as an actuating element 400 a pivoted operating lever 400 on. The operating lever 400 has a grip area 490 for manual actuation of the operating lever 400 on. The operating lever 400 is used to deflect the clamping leg 210 formed into an open position from a closed position. In the open position, a clamping point for the electrical conductor defined by the clamping leg and busbar is open. In the closed position, however, the clamping point is not open. The clamping spring 200 is formed in the closed position by means of the clamping leg 210 the previously inserted electrical conductor to the busbar 100 to press. For example, the clamping edge presses 211 at the free end against the conductor, which in turn against the busbar 100 is pressed and on the power rail 100 forms the electrical contact.

In the exemplary embodiments of the figures, the operating lever is 400 arranged outside a conductor entry area, so that the conductor at the introduction does not collide with any part of the operating lever. So can the width of the conductor guide channel 310 optimized for the largest possible conductor.

By manual actuation of the operating lever 400 can be the clamping point by deflecting the clamping leg 210 be opened and closed. The operating lever is located 400 in the closed position GS as in the 1 to 4th shown, the terminal point is also closed. Is the operating lever 400 in the open position OS as in the 5 to 7th shown is the clamp leg 210 deflected and the terminal point opened. In the open position OS the conductor can be inserted into the terminal point or removed from it without any effort, since by actuating the operating lever 400 the clamping edge 211 from their contact point on the power rail 100 or the contact point on the electrical conductor due to the deflection of the clamping leg 210 moved away.

In addition, in the exemplary embodiments of the figures, a single-wire, solid conductor can be plugged in directly so that it is in the closed position GS the conductor through the conductor guide channel 310 is guided and by the additional feed force of the clamping legs 210 the clamping spring 200 is deflected so that the conductor can be pushed in until it stops.

Individual features and differences in the exemplary embodiments of FIG 1 to 7th explained in more detail. Different features of the exemplary embodiments can be combined with one another.

The spring clamp connection 1 of the embodiment of 1 has a first mechanical coupling element 530 for mechanical coupling of the pivoting movement of the operating lever 400 with the deflection of the clamping leg 210 the clamping spring 200 on. The operating lever 400 is in the housing 300 partially included, with the grip area 490 of the operating lever 400 on a top of the housing 300 protrudes through a housing opening. A warehouse 450 for mounting the operating lever 400 is in the embodiment of 1 inside the case 300 arranged. In the embodiment of 1 is the operating lever 400 mounted in such a way that the instantaneous pole and thus the axis of rotation are stationary. For example, the operating lever 400 a cylindrical opening into which a cylindrical pin (not shown) of the housing 300 is introduced to form a swivel slide bearing. Alternatively, the operating lever 300 by means of the busbar 100 or by means of the contact leg 220 the clamping spring 200 be stored (not shown).

In the embodiment of 1 the operating lever 400 an operating area 410 on, which is shaped in sections in the radial direction in the manner of an eccentric. The shape of the operating area 410 in the embodiment of 1 can also be called peg-shaped or nose-shaped. The area of activity 410 acts with the first mechanical coupling element 530 together, such that the pivoting movement of the operating lever 400 with a deflection of the clamping leg 210 is mechanically coupled.

The area of activity 410 has in the embodiment of 1 a width that is a space width between two walls of the housing 300 equals. This allows the first mechanical coupling element 530 in the entire width of the room through the actuation area 410 be operated. It is also possible that the operating area 410 Guide means for guiding the movement of the first mechanical coupling element 530 having.

In 1 is the operating lever 400 in open position OS shown. The clamping leg is located accordingly 210 deflected in the open position OS . The area of activity 410 of the operating lever 400 presses against the first mechanical coupling element 530 . This causes a tensile force in the first mechanical coupling element 530 that are attached to the clamp leg 210 pulls and this in the open position OS deflects.

In the embodiment of 1 has the contact leg 220 an opening 290 on. The first mechanical coupling element 530 reaches through the opening 290 in the contact leg 220 . The opening 290 is in a central area with respect to the width of the contact leg 220 educated. The first mechanical coupling element 530 reaches through the opening 290 in this middle area. The opening 290 is in the embodiment of 1 in one area of the contact leg 220 formed, which is predominantly in the same direction as the clamping leg 210 extends and is approximately parallel to this, for example. This allows the operating lever 400 on one side of the contact leg 220 be formed, however, the clamping point is on the opposite side of the contact leg 220 educated.

The opening 290 in the contact leg 220 is in the embodiment of 1 as an all-round closed opening 290 educated. The opening 290 is transverse to the main direction of extent through the first and second web 221 , 222 of the contact leg 220 limited. For example, the opening is 290 in the contact leg 220 formed by a stamping process. The embodiment in 1 a particularly narrow spring-cage terminal connection can be used 1 created become. The contact leg 220 the clamping spring 200 can extend up to the wall of the housing 300 Extend in width, since there is no movable element on the side of the contact leg 220 Must be passed.

In the embodiment of 1 are the first mechanical coupling element 530 and the clamp leg 210 the clamping spring 200 molded in one piece and bent. The first mechanical coupling element 530 is laterally to the main direction of extent of the clamping leg 210 to the clamp leg 210 tied, bent about 180 ° there and again about 90 ° towards the operating lever 400 bent, the opening 290 in the contact leg 220 sweeping.

The opening 290 in the contact leg 220 has a size such that the first mechanical coupling element 530 inside the opening 290 is movable. In the embodiment of 1 is a movement of the first mechanical coupling element 530 inside the opening 290 both in the main direction of extent of the opening 290 as well as transversely to the main direction of extent of the opening 290 possible.

In the embodiment of 2 the operating lever 400 an operating area 410 on that means 419 for mounting a first coupling element 540 having. For example is in the operating area 410 an eyelet 419 provided as a storage means. In the embodiment of 2 is the means 419 for storage only shown schematically. Alternatively, a hinge or the like can also be used.

The first mechanical coupling element 540 is in 2 as a separate coupling element 540 designed for mechanical coupling to the operating lever 400 and on the clamp leg 220 is stored. The first mechanical coupling element has this 540 Storage means 541 , 542 , 543 on. The storage means 541 , 542 , 543 are in the embodiment of 2 shown in a very simplified way. Alternative bearing means such as film hinges, supports, pivot bearings or the like can be provided. In the embodiment of 2 becomes the separate coupling element 540 also moved when the clamping leg 210 is deflected by advancing a conductor (not shown).

In 2 is the operating lever 400 in open position OS shown. The clamping leg is located accordingly 210 deflected in the open position OS . The actuation area pushes in the opening movement 410 of the operating lever 400 against the separate first mechanical coupling element 540 . This causes a tensile force in the first mechanical coupling element 540 that are attached to the clamp leg 210 pulls and this in the open position OS deflects. The separate first mechanical coupling element 540 can for example be rigid or elastic made of plastic or metal. The separate first mechanical coupling element 540 is in the embodiment of 2 in an opening 209 in the clamp leg 210 the clamping spring 200 stored. Through the separate first coupling element 540 can the mechanical properties of the first coupling element 540 separated from the mechanical properties of the clamping spring 200 and the operating lever 400 be optimized.

In the embodiment of 3 extends in contrast to the embodiment of 2 an opening 291 in the contact leg 220 over the feather bow 230 right into the clamp leg 210 . Here is the first mechanical coupling element 535 again within the opening 291 in a central area with respect to the width of the opening 291 in the contact leg 220 arranged. In the embodiment of 3 is the first mechanical coupling element 535 with the clamping spring 200 integrally formed by the first mechanical coupling element 535 is punched free in a central area of the clamping spring width and bent over, so that the first mechanical coupling element 535 the opening created by the punching process 291 reaches through and in the operating lever 400 by a bearing element 531 is stored for actuation. there is the opening 291 only slightly wider than the first mechanical coupling element due to the punching process 535 so that the mechanical coupling element 535 inside the opening 291 is advantageously freely movable. In the embodiment of 3 can be the width of the clamp spring 200 inside the interior walls of the housing 300 can be maximized. From the edge of the spring clip 200 In this exemplary embodiment, no area is bent inward. It is also not necessary for the contact leg 220 and / or the clamping leg 210 with indentations to provide an element on one of the legs 210 , 220 to lead past.

The spring clamp connection 1 of the embodiment of 4th has a first mechanical coupling element 510 and a second mechanical coupling element 520 for mechanical coupling of the pivoting movement of the operating lever 400 with the deflection of the clamping leg 210 the clamping spring 200 on. The operating lever 400 is in the housing 300 partially included, with the grip area 490 of the operating lever 400 on a top of the housing 300 protrudes through a housing opening. A bearing for storing the operating lever 400 is in the embodiment of 4th inside the case 300 arranged. In the embodiment of 4th is the operating lever 400 mounted in such a way that the instantaneous pole and thus the axis of rotation are stationary. in the Embodiment has the operating lever 400 a cylindrical pin 451 in a cylindrical opening (not shown) of the housing 300 is introduced to form a swivel slide bearing. Alternatively, the operating lever 300 by means of the busbar 100 or by means of the contact leg 220 the clamping spring 200 be stored (not shown).

In the embodiment of 4th the operating lever 400 an operating area 410 on, which is shaped in sections in the radial direction in the manner of an eccentric. The shape of the operating area 410 in the embodiment of 4th can also be called peg-shaped or nose-shaped. The area of activity 410 acts with the first mechanical coupling element 510 and the second mechanical coupling element 520 together, such that the pivoting movement of the operating lever 400 with a deflection of the clamping leg 210 is mechanically coupled. The first mechanical coupling element 510 and the second mechanical coupling element 520 are for the mechanical coupling of the pivoting movement of the operating lever 400 with the deflection of the clamping leg 210 educated. The actuation area has for mechanical coupling 410 a first guide groove 421 as a plain bearing for guiding the first mechanical coupling element 510 and a second guide groove 422 as a plain bearing for guiding the second mechanical coupling element 520 on.

The first mechanical coupling element 510 and the second mechanical coupling element 520 are in the embodiment of 4th with the clamp leg 210 the clamping spring 200 molded in one piece. The first mechanical coupling element 510 and the second mechanical coupling element 520 from the material of the clamping spring 200 in the area of the clamping leg 210 laterally deformed by about 90 ° and on the contact leg 220 the clamping spring 200 passed by. This allows the operating lever 400 be arranged above the conductor entry area. Through the formation of the first mechanical coupling element 510 and the second mechanical coupling element 520 can adjust the force to deflect the clamping leg 210 on both sides of the clamp leg 210 act and so twisting or tilting the clamping spring 200 prevent transverse forces on the housing 300 to reduce.

In the embodiment of 4th has the contact leg 220 the clamping spring 200 a first indentation 225 and a second indentation 226 on. In the embodiment of 4th are the first indentation 225 and the second indentation 226 regarding the width of the contact leg 220 opposite, so that a width of the contact leg 220 between the first indentation 225 and the second indentation 226 is rejuvenated.

The first mechanical coupling element 510 is within the first indentation 225 and the second mechanical coupling element 520 is within the second indentation 226 arranged. The length of the indentations 225 , 226 and the arrangement 225 , 226 the indentations are with regard to the movements of the coupling elements 510 , 520 at least designed in such a way that the coupling elements 510 , 520 during the pivoting movement of the operating lever 400 as little as possible with the contact leg 220 collide. In addition, the indentations can be made even longer.

As an alternative to the embodiment in 4th can use the first mechanical coupling element 510 and / or the second mechanical coupling element 520 with the operating lever 400 be formed in one piece. It is also possible, analogously to the exemplary embodiment of 2 both mechanical coupling elements 510 , 520 to be designed as separate elements.

Alternatively, it is also possible that the first mechanical coupling element 510 and / or the second mechanical coupling element 520 for example, each has a bearing for mounting the actuating lever (in 4th not shown). Notwithstanding the embodiment of 4th overlap this the mechanical coupling elements 510 , 520 the operating section 410 of the operating lever 400 and thus form a support for the actuating section 410 analogous to the embodiment in 5 .

In the embodiment of 5 is a spring-loaded terminal connection 1 in closed position GS shown as a partial view. The operating element is an operating lever 400 for deflecting the clamping leg 210 the clamping spring 200 educated. The operating lever 400 has a first contour 460 on. The first contour 460 is designed as an outer contour. The first contour 460 is with the clamp leg 210 via at least part of the pivoting movement of the operating lever 400 mechanically coupled for deflection. In the embodiment of 5 is the first contour 460 with the clamp leg 210 via a first mechanical coupling element 550 mechanically coupled. The first mechanical coupling element 550 is fixed to the clamp leg 210 connected, for example stored on this or, as in 5 shown with the clamping leg 210 integrally formed. Accordingly, in the exemplary embodiment of 5 the clamp leg 210 the first mechanical coupling element 550 on. For example, is the first mechanical coupling element 550 with the clamping spring 200 formed in one piece from a metal, for example spring steel. In the embodiment of 5 has the first mechanical coupling element 550 a support 551 on that over at least part of the pivoting movement of the operating lever 400 with the first contour 460 for mechanical coupling is in contact, so that one on the support 551 acting force the clamping leg 210 deflects. In the embodiment of 5 is the first contour 460 at least partially eccentric.

The first contour 460 is with the first mechanical coupling element 550 via at least part of the pivoting movement of the operating lever 400 for deflecting the clamping leg 210 mechanically coupled. As in 5 shown, an idle stroke can also be provided to the operating handle 490 better to grasp manually.

In the embodiment of 5 practice the first contour 460 for mechanical coupling, a compressive force on the first mechanical coupling element 550 , about the support 551 of the first mechanical coupling element 550 out. The compressive force is effected in the first mechanical coupling element 550 a tensile force to deflect the clamping leg 210 . The clamp leg 210 is in 5 in a sense pulled up to the terminal point K to open. In 5 however, the state is in the closed position GS with closed clamping point K shown.

In the embodiment of 5 the operating lever 400 a second contour as an actuating element 470 on. The second contour 470 is also designed as an outer contour. In the embodiment of 5 has the second contour 470 an eccentric shape. The operating lever 400 performs a pivoting movement when actuated, the instantaneous pole of which in the exemplary embodiment is 5 for example by a bearing pin 452 is defined. In 5 is a first distance d1 shown, which differs from the outer contour 470 of the operating lever 400 measured at the momentary pole. In 5 is a second distance d2 shown, which differs from the outer contour 470 of the operating lever 400 dimensioned to the momentary pole, but is offset by a swivel angle, e.g. 90 °.

The second contour 470 is in the embodiment of 5 with the case 300 via at least part of the pivoting movement of the operating lever 400 mechanically coupled for deflection. In 5 is a housing wall 340 with the second contour 470 for mechanical coupling in contact. Will the operating handle 490 in 5 up to the open position (in 5 not shown), the second contour is 470 continue with the housing wall 340 in contact. However, in the open position between the housing wall 340 and momentary pole the second distance d2 . Is the second distance d2 greater than the first distance d1 , as in the embodiment of 5 shown, the instantaneous pole is opposite to the conductor insertion direction HE relocated.

As an alternative to the embodiment of 5 is the second contour 470 with the contact leg 220 or with the power rail 100 via at least part of the pivoting movement of the operating lever 400 mechanically coupled for deflection. For example, in 5 the housing wall 340 through a section of the busbar 100 or by a section of the contact leg 220 simply be replaced. Also is a combination of sections of the case 300 and / or the busbar 100 and / or the contact leg 220 to form a counter bearing for the second contour 470 possible.

In the embodiment of 5 is the operating lever 400 mounted in such a way that a first portion of the deflection of the clamping leg 210 through the first contour 460 and a second proportion of the deflection of the clamping leg 210 through the second contour 470 is effected. In order to have an additive effect, each part should not be negligible. For example, the second portion is at least 20%. For example, the first portion is at least 20%. For example, it is possible that the first part and the second part approximately 50% for the deflection of the clamping leg 210 contribute.

As in the embodiment of 5 the second contour is shown 470 at least partially eccentric. The second contour 470 is from the first contour 460 at least in the circumferential direction around the momentary pole of the pivoting movement of the actuating lever 400 spaced. In the embodiment of 5 lie the first contour 460 and the second contour 470 opposite each other with regard to the momentary pole.

In the embodiment of 5 the operating lever 400 a pin for storage 452 on that in an elongated hole 352 is performed as a counter bearing. Additionally or alternatively, the operating lever 400 by a sliding surface 353 be guided. The elongated hole 352 and the sliding surface can for example in the housing 300 of the spring clamp connection 1 be trained.

Around the spring-loaded terminal connection 1 to be further connected electrically, for example to a module or a connector or a printed circuit board, in the exemplary embodiment of FIG 5 for example a knife contact 130 shown as a connection. Alternatively, other contacts, such as a fork contact, can be used for further electrical connection.

In the embodiment of 6th is a spring-loaded terminal connection 1 in closed position GS shown as a partial view. The operating element is an operating lever 400 for deflecting the clamping leg 210 the clamping spring 200 educated. The operating lever 400 has analogous to the embodiment of 5 a first contour 460 on. The first contour 460 is also designed as an outer contour. The explanations relating to the first contour are accordingly referred to 460 in 5 Referenced.

In the embodiment of 6th the operating lever 400 a second contour as an actuating element 471 on. The second contour 471 is designed as an inner contour. The operating lever 400 performs a pivoting movement when actuated, the instantaneous pole of which in the exemplary embodiment is 6th for example by a bearing pin 452 is defined. In 6th is a first distance d1 shown, which differs from the inner contour 471 of the operating lever 400 measured at the momentary pole. In 6th is a second distance d2 shown, which differs from the inner contour 471 of the operating lever 400 dimensioned to the momentary pole, but is offset by a swivel angle, e.g. 90 °.

The second contour 471 is in the embodiment of 6th with the case 300 via at least part of the pivoting movement of the operating lever 400 mechanically coupled for deflection. A fixed strut is needed for this 479 provided in the second contour formed as a path 471 slides with the pivoting movement. In 6th is the strut 479 in the housing 300 fixed in place. Will the operating handle 490 in 6th up to the open position (in 6th not shown) pivoted, so is the strut 479 in the second contour 471 in the end position. However, in the open position between the strut applies 479 and momentary pole the second distance d2 . Is the second distance d2 greater than the first distance d1 , as in the embodiment of 6th shown, the instantaneous pole is opposite to the conductor insertion direction HE relocated.

As an alternative to the embodiment of 6th is the strut 479 stationary on the contact leg 220 or on the power rail 100 attached so that the second contour 471 is mechanically coupled for deflection.

In the embodiment of 6th is the operating lever 400 mounted in such a way that a first portion of the deflection of the clamping leg 210 through the first contour 460 and a second proportion of the deflection of the clamping leg 210 through the second contour 471 is effected. In order to have an additive effect, each part should not be negligible. For example, the second portion is at least 20%. For example, the first portion is at least 20%. For example, it is possible that the first part and the second part approximately 50% for the deflection of the clamping leg 210 contribute.

As in the embodiment of 6th shown is the second contour 471 at least partially eccentric. The second contour 471 is from the first contour 460 both in the circumferential direction around the momentary pole of the pivoting movement of the actuating lever 400 as well as spaced apart in the radial direction.

In the embodiment of 6th it is shown that the operating lever 400 a journal 452 has, which is in an elongated hole 352 of the housing 300 is stored. Alternatively, the elongated hole 352 in part of the contact leg 220 the clamping spring 200 or in part of the power rail 100 be trained. During the pivoting movement of the operating lever 400 this performs a rotary movement around the momentary pole. This rotational movement component of the operating lever 400 causes a first portion of the deflection of the clamping leg 210 . The rotational movement component is superimposed by a translational movement component, with a translational movement of the instantaneous center of gravity through the second contour 471 is effected. The instantaneous pole is within the elongated hole 352 against the direction of insertion HE of the head moved. The second part is the deflection of the clamping leg 210 the clamping spring 200 due to the predominantly translatory movement of the actuating lever 400 causes.

In the embodiment of 7th is a spring-loaded terminal connection 1 for connecting an electrical conductor 2 in closed position GS shown as a partial view. The operating element is an operating lever 400 for deflecting the clamping leg 210 the clamping spring 200 educated. The operating lever 400 has analogous to the embodiment of 5 a first contour 460 on. The first contour 460 is also designed as an outer contour. The explanations relating to the first contour are accordingly referred to 460 in 5 Referenced.

In the embodiment of 7th the operating lever 400 a second contour as an actuating element 472 on. The second contour 472 is designed as an inner contour. The second contour 472 is in the embodiment of 7th with the case 300 via at least part of the pivoting movement of the operating lever 400 mechanically coupled for deflection. A fixed strut is needed for this 479 provided in the second contour formed as a path 472 slides with the pivoting movement. In 7th is the strut 479 in the housing 300 and / or in the contact leg 220 and / or in the busbar 100 fixed in place. Will the operating handle 490 in 7th up to the open position (in 7th not shown) pivoted, so is the strut 479 in the second contour 472 in the end position. The instantaneous pole is opposite to the direction in which the conductor is inserted HE relocated.

In the embodiment of 7th is the second contour 472 from the first contour 460 only radially spaced. Both contours 460 , 472 increase the stroke and contribute significantly to the deflection of the clamping leg 220 of the clamping spring 200 at. As in the embodiment of 7th the second contour is shown 472 trained like a track.

The invention is not restricted to the exemplary embodiments shown. The features of the various exemplary embodiments can thus be combined with one another. It is also possible to form the second contour using a different geometry.

List of reference symbols

1

Spring clamp connection

100

Busbar

110

Floor area, floor section

120

Busbar wall

130

Connection, blade contact

200

Clamp spring

209

opening

210

Clamp leg

211

Clamping edge

220

Contact leg

221, 222

web

225, 226

indentation

227

opening

228, 229

Contact leg section

230

Feather bow, feather root

290, 291

opening

300

casing

310

Ladder guide channel

352

Counter bearing, elongated hole

400

Operating lever

410

Operating area, operating section

419

Bearing, eyelet

450, 451

Pivot bearing

452

Pivot bearing, pin

460, 470, 471, 472

contour

479

strut

490

Handle section,

510, 520, 530, 535, 540, 550

mechanical coupling element

531, 541, 542, 543, 551

Storage means

d1, d2

distance

HE

Insertion direction

GS

Closed position

K

Terminal point

OS

Open position

QUOTES INCLUDED IN THE DESCRIPTION

This list of the documents listed by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent literature cited

• WO 2018/010893 A1 [0002]

Claims (24)

Spring clamp connection (1) for connecting an electrical conductor (2), - With a busbar (100) for making electrical contact with the conductor (2), - with a clamping spring (200), wherein the clamping spring (200) has a clamping leg (210) and a contact leg (220) connected to the clamping leg (210), - With a pivotably mounted actuating element (400) for deflecting the clamping leg (210) into an open position (OS) from a closed position (GS), - With a first mechanical coupling element (530, 535, 540, 550), for the mechanical coupling of the pivoting movement of the actuating element (400) with the deflection of the clamping leg (210), - In which the contact leg (220) has an opening (290, 291), and - In which the first mechanical coupling element (530, 535, 540, 550) reaches through the opening (290, 291) in the contact leg (220). Spring clamp connection (1) Claim 1 , in which the opening (290, 291) in the contact leg (220) of the clamping spring (200) is closed on the circumference. Spring-loaded terminal connection (1) according to one of the preceding claims, in which the opening (290, 291) is formed in a central region of the width of the contact leg (220) and in which the first mechanical coupling element (530, 535, 540, 550) is the opening (290, 291) reaches through in the central area. Spring-loaded terminal connection (1) according to one of the preceding claims, in which the opening (290) has a size that allows movement of the first mechanical coupling element (530, 535, 540, 550) within and / or perpendicular to the plane of extension of the contact leg (220) . Spring-loaded terminal connection (1) according to one of the preceding claims, in which the first mechanical coupling element (530, 535, 550) is formed in one piece with the clamping spring (200). Spring clamp connection (1) Claim 5 , in which the first mechanical coupling element (530, 535, 550) is formed in one piece with the clamping leg (210). Spring-loaded terminal connection (1) according to one of the Claims 1 to 4th , in which the first mechanical coupling element is formed in one piece with the actuating element (400). Spring-loaded terminal connection (1) according to one of the Claims 1 to 4th , in which the first mechanical coupling element (540) is designed as a separate element (540), which is mounted on the actuating element (400) and / or on the clamping leg (210) for mechanical coupling. Spring clamp connection (1) for connecting an electrical conductor (2), - With a busbar (100) for making electrical contact with the conductor (2), - with a clamping spring (200), wherein the clamping spring (200) has a clamping leg (210) and a contact leg (220) connected to the clamping leg (210), - With a pivotably mounted actuating element (400) for deflecting the clamping leg (210) into an open position (OS) from a closed position (GS), - With a first mechanical coupling element (510) and a second mechanical coupling element (520), for the mechanical coupling of the pivoting movement of the actuating element (400) with the deflection of the clamping leg (210), - in which the contact leg (220) has a first indentation (225) and a second indentation (226), - in which the first mechanical coupling element (510) is arranged within the first indentation (225) and the second mechanical coupling element (520) is arranged within the second indentation (226). Spring clamp connection (1) Claim 9 , in which the first mechanical coupling element (510) and / or the second mechanical coupling element (520) are integrally formed with the clamping leg. Spring-loaded terminal connection (1) according to one of the Claims 9 or 10 , in which the first mechanical coupling element (510) and / or the second mechanical coupling element (520) with the actuating element (400) are formed in one piece or as separate elements. Spring-loaded terminal connection (1) according to one of the preceding claims, in which the actuating element (400) has at least one bearing (421, 422) for mounting the first mechanical coupling element (510) and / or the second mechanical coupling element (520). Spring clamp connection (1) Claim 12 , in which the bearing (421, 422) is a support or a plain bearing (421, 422). Spring-loaded terminal connection (1) according to one of the preceding claims, in which the first mechanical coupling element (510, 550) and / or the second mechanical coupling element (520) has at least one bearing (551) for mounting the actuating element (400). Spring clamp connection (1) for connecting an electrical conductor (2), - With a busbar (100) for making electrical contact with the conductor (2), - With a clamping spring (200), the clamping spring (200) having a clamping leg (210), - with a housing (300), - With a pivotably mounted actuating element (400) for a pivoting movement between an open position (OS) and a closed position (GS), - in which the actuating element (400) is designed to deflect the clamping leg (210), - in which the actuating element (400) has a first contour (460) which is mechanically coupled to the clamping leg (210) via at least part of the pivoting movement of the actuating element (400) for deflection, - In which the actuating element (400) has a second contour (470, 471, 472), which with the contact leg (220) and / or with the busbar (100) and / or with the housing (300) over at least part of the The pivoting movement of the actuating element (400) is mechanically coupled for deflection, - in which the actuating element (400) is mounted in such a way that a first portion of the deflection is caused by the first contour (460) and a second portion of the deflection is caused by the second contour (470, 471, 472). Spring clamp connection (1) Claim 15 - In which the first contour (460) is at least partially eccentric. Spring-loaded terminal connection (1) according to one of the Claims 15 or 16 - In which the second contour (470, 471, 472) is at least partially eccentric. Spring-loaded terminal connection (1) according to one of the Claims 15 to 17th , in which the first portion of the deflection is caused by a predominantly rotary movement of the actuating element (400), and in which the second portion of the deflection is caused by a predominantly translational movement of the actuating element (400) superimposed on the rotary movement. Spring-loaded terminal connection (1) according to one of the Claims 15 to 18th , in which the second contour (470) is an outer contour (470) of the actuating element (400). Spring-loaded terminal connection (1) according to one of the Claims 15 to 18th , in which the second contour (471, 472) is an inner contour (471, 472) of the actuating element (400). Spring-loaded terminal connection (1) according to one of the Claims 15 to 20th , in which the second contour (470, 471, 472) is spaced from the first contour (460) at least in the radial direction from the instantaneous pole of the actuating element (400). Spring-loaded terminal connection (1) according to one of the Claims 15 to 21st , in which the second contour (470, 471, 472) is spaced from the first contour (460) at least in the circumferential direction by a momentary pole of the actuating element (400). Spring-loaded terminal connection (1) according to one of the Claims 15 to 22nd , with a first mechanical coupling element (550) wherein the clamping leg (210) is formed in one piece with the mechanical coupling element (550), in which the first contour (460) with the first mechanical coupling element (550) over at least part of the pivoting movement of the actuating element (400) is mechanically coupled to deflect the clamping leg (210). Spring clamp connection (1) Claim 23 , in which, for mechanical coupling, the first contour (460) exerts a compressive force on the first mechanical coupling element (550), which in the first mechanical coupling element (500) causes a tensile force to deflect the clamping leg (210).

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