DE202019101483U1 - Spring clamp connection - Google Patents

Abstract

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) 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 mechanically coupling 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 clamp connection.

A spring-loaded terminal connection referred to as a connecting terminal is, for example, from US Pat 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 the best possible spring force connection.

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

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

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

The spring-loaded clamping 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 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 an opening. The first mechanical coupling element advantageously extends 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 passes.

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 circumference.

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

According to an advantageous development, the opening extends from the contact leg beyond the spring arch into the clamping leg.

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

According to an advantageous development, the first mechanical coupling element is formed in one piece with the clamping spring. For example, the one-piece construction is formed by material locking or positive locking 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 spring steel and bent.

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

According to an advantageous development, the first mechanical coupling element is formed 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 electrical contacting of the conductor.

The spring-loaded clamping 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 force clamp 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) slide 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-cage terminal connection has a busbar for making electrical contact with the conductor.

The spring-force clamp connection has a clamp spring, the clamp spring having a clamp 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 development, the spring-loaded terminal connection has a housing. According to an advantageous development, the actuating element has a second contour, which 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 such that a first portion of the deflection is brought about by the first contour and a second portion of the deflection is brought about by the second contour.

According to an advantageous development, the first contour is formed eccentrically, at least in sections.

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 brought about by a predominantly rotary movement of the actuating element. According to an advantageous further development, the second part of the deflection is brought about by a predominantly translatory movement of the actuating element which 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 at least spaced from the first contour 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 a momentary 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 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 causes a tensile force in the first mechanical coupling element to deflect the clamping leg.

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

In the description, the indefinite article "a" or "an" is not to be understood as a specific number. An electrical conductor is to be understood as meaning at least one electrical conductor, so that exactly one, two or more electrical conductors can be connected to a busbar by means of the spring-loaded terminal connection. A busbar is understood to mean exactly one, two or more busbars. A clamping spring is understood to mean exactly one, two or more clamping springs. An actuating element is to be understood to mean exactly one, two or more actuating elements. The busbar can also be referred to as a current bar. The busbar is optimized for electrical contacting and current 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 from a spring steel and bent. Advantageously, the clamping spring has exactly one clamping leg for clamping an assigned 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 to bear against a fixed area of the spring-loaded clamping connection in order to absorb the retroactive spring force. For example, the contact leg abuts 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 directly or indirectly connected to the clamping leg. For example, the contact leg is connected to the clamping leg via a spring arch. Advantageously, the contact leg, spring arch and clamping leg are integrally formed and bent, or alternatively the contact leg and clamping leg are attached to one another. The actuating element is designed to be actuatable and can be actuated, for example, manually or by means of an actuating tool. The spring clamp 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 serves 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 for 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 Federanschlussklemme;
• 4 ein weiteres Ausführungsbeispiel einer Federanschlussklemme;
• 5 ein weiteres Ausführungsbeispiel einer Federanschlussklem me;
• 6 ein weiteres Ausführungsbeispiel einer Federanschlussklemme;
• 7 ein weiteres Ausführungsbeispiel einer Federanschlussklemme.

Embodiments of the invention are explained in more detail below with reference to the drawings. Show:

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

In the 1 to 76 are different embodiments of a spring 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, which form the core of the cable. The core is covered with insulating material. The conductor is connected to the electrical connection by a clamping spring 200 clamped. The spring force of the clamping spring 200 has a clamping effect on the conductor. For example, there is a free end 211 the clamping spring 200 a clamping edge 211 that penetrates the material of the conductor and thus significantly increases an extraction force.

The spring clamp connection 1 has a busbar 100 for electrical contacting of the conductor. The track 100 is advantageously made of a material that has a better current conductivity than the clamping spring 200 . Accordingly, the conductor becomes electrical with the busbar 100 connected. The track 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 in part and cut. The housing 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 clamping spring 200 shown. The spring-cage connection points for multi-pole connection options 1 a corresponding number of busbars 100 and clamping springs 200 on that through the housing 300 can be isolated from each other.

The clamp spring 200 has a clamping leg 210 and one with the clamp leg 210 connected investment leg 220 on. Clamping leg 210 and investment leg 220 can be connected to one another by means of a positive connection, for example by means of clinching. Advantageously, clamping legs are 210 and investment leg 220 the clamping spring 200 made of one material, for example spring steel, molded and bent in one piece. Examples are clamping legs 210 and investment leg 220 connected to each other via a 180 ° fold. In the 1 to 6 is shown in one embodiment that the clamping spring 200 the clamping leg 210 and the investment leg 220 and a clamp leg 210 and investment leg 220 connecting spring arch 230 having. The clamp spring 200 extends from the clamping leg 210 over the spring arch 230 to the investment leg 220 .

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

The spring-loaded terminal connection has an actuating element 400 a pivoted operating lever 400 on. The operating lever 400 has a grip area 490 for manual operation of the operating lever 400 on. The operating lever 400 is for deflecting the clamping leg 210 trained in an open position from a closed position. In the open position, a clamping point defined by the clamping leg and busbar is opened for the electrical conductor. In the closed position, however, the terminal point is not open. The clamp spring 200 is designed in the closed position by means of the clamping leg 210 the previously introduced 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 conductor rail 100 is pressed and on the power rail 100 forms the electrical contact.

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

By manual actuation of the actuation lever 400 can 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 7 shown, so is the clamping leg 210 deflected and the terminal point opened. In the open position OS the conductor can be inserted into or removed from the terminal point without effort, since the actuation lever is activated 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 on.

In addition, in the exemplary embodiments of the figures, a solid, solid conductor can be plugged in directly, so that in the closed position GS the conductor through the conductor guide channel 310 is guided and by additional feed force of the clamping leg 210 the clamping spring 200 is deflected so that the conductor can be pushed in as far as it will go.

In the following, individual features and differences in the exemplary embodiments of the 1 to 7 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 the 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 case 300 protrudes through a housing opening. A warehouse 450 for mounting the operating lever 400 is in the embodiment 1 inside the case 300 arranged. In the embodiment of the 1 is the operating lever 400 stored in such a way that the instantaneous pole and thus the axis of rotation is 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 plain bearing. Alternatively, the operating lever 300 by means of the busbar 100 or by means of the investment leg 220 the clamping spring 200 be stored (not shown).

In the embodiment of the 1 has the operating lever 400 an area of activity 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 cone-shaped or nose-shaped. The area of activity 410 acts with the first mechanical coupling element 530 together, such that the pivotal movement of the operating lever 400 with a deflection of the clamping leg 210 is mechanically coupled.

The area of activity 410 points in the embodiment of 1 a width that corresponds to a space width between two walls of the housing 300 equal. As a result, the first mechanical coupling element 530 in the entire width of the room through the operating 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 on the clamping leg 210 pulls it into the open position OS deflects.

In the embodiment of the 1 points the contact leg 220 an opening 290 on. The first mechanical coupling element 530 penetrates the opening 290 in the investment 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 1 in an area of the investment leg 220 trained, which is mainly 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 investment leg 220 be formed, however, the nip is on the opposite side of the contact leg 220 educated.

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

In the embodiment of the 1 are the first mechanical coupling element 530 and the clamping 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 extension of the clamping leg 210 to the clamping leg 210 connected, bent there about 180 ° and again about 90 ° towards the operating lever 400 bent the opening 290 in the investment leg 220 radical.

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

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

The first mechanical coupling element 540 is in 2nd as a separate coupling element 540 trained that for mechanical coupling to the actuating lever 400 and on the clamping leg 220 is stored. For this purpose, the first mechanical coupling element 540 Storage means 541 , 542 , 543 on. The storage means 541 , 542 , 543 are in the embodiment of 2nd 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 the 2nd becomes the separate coupling element 540 also moves when the clamping leg 210 is deflected by advancing a conductor (not shown).

In 2nd 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 presses 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 on the clamping leg 210 pulls it into the open position OS deflects. The separate first mechanical coupling element 540 can be made of plastic or metal, for example, rigid or elastic. The separate first mechanical coupling element 540 is in the embodiment 2nd in an opening 209 in the clamping leg 210 the clamping spring 200 stored. Through the separate first coupling element 540 can the mechanical properties of the first coupling element 540 separate from the mechanical properties of the clamping spring 200 and the operating lever 400 be optimized.

In the embodiment of the 3rd extends in contrast to the embodiment of the 2nd an opening 291 in the investment leg 220 over the spring arch 230 right into the clamping leg 210 . Here is the first mechanical coupling element 535 again inside the opening 291 in a central area with respect to the width of the opening 291 in the investment leg 220 arranged. In the embodiment of the 3rd is the first mechanical coupling element 535 with the clamp spring 200 molded in one piece by the first mechanical coupling element 535 is punched out and bent over in a central region of the clamping spring width, so that the first mechanical coupling element 535 the opening created by the stamping process 291 reaches through and in the operating lever 400 through a bearing element 531 is stored for actuation. there is the opening 291 due to the punching process only slightly wider than the first mechanical coupling element 535 so that the mechanical coupling element 535 inside the opening 291 is advantageously freely movable. In the embodiment of the 3rd can be the width of the clamp spring 200 inside the inside walls of the case 300 be maximized. From the edge of the clamp spring 200 In this embodiment, no area is bent inwards. Also, it is not necessary to have the plant leg 220 and / or the clamping leg 210 with indentations to an element on one of the legs 210 , 220 lead past.

The spring clamp connection 1 of the embodiment of the 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 case 300 protrudes through a housing opening. A bearing for storing the operating lever 400 is in the embodiment 4th inside the case 300 arranged. In the embodiment of the 4th is the operating lever 400 stored in such a way that the instantaneous pole and thus the axis of rotation is stationary. in the Embodiment has the operating lever 400 a cylindrical pin 451 on, in a cylindrical opening (not shown) of the housing 300 is introduced to form a swivel plain bearing. Alternatively, the operating lever 300 by means of the busbar 100 or by means of the investment leg 220 the clamping spring 200 be stored (not shown).

In the embodiment of the 4th has the operating lever 400 an area of activity 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 cone-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 pivotal 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 mechanical coupling of the pivoting movement of the operating lever 400 with the deflection of the clamping leg 210 educated. The actuation area points to the mechanical coupling 410 a first guide groove 421 as a slide bearing for guiding the first mechanical coupling element 510 and a second guide groove 422 as a slide 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. Here are 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 formed laterally 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. By designing 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 clamping leg 210 act and thus a twisting or tilting of the clamping spring 200 prevent shear forces on the housing 300 to reduce.

In the embodiment of the 4th points the contact leg 220 the clamping spring 200 a first indentation 225 and a second indentation 226 on. In the embodiment of the 4th are the first indentation 225 and the second indentation 226 yourself regarding the width of the investment leg 220 opposite so that a width of the investment 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 inside the second indentation 226 arranged. The length of the indentations 225 , 226 and the arrangement 225 , 226 the indentations are in relation to the movements of the coupling elements 510 , 520 at least 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 longer.

As an alternative to the exemplary embodiment in 4th can 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 embodiment of FIG 2nd both mechanical coupling elements 510 , 520 to be trained as separate elements.

Alternatively, it is also possible for 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). Deviating from the embodiment of 4th To this end, the mechanical coupling elements overlap 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 the 5 is a spring clamp connection 1 in closed position GS shown as a partial view. The actuating element is an actuating lever 400 to deflect 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 over at least part of the pivoting movement of the actuating lever 400 mechanically coupled for deflection. In the embodiment of the 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 with the clamping leg 210 connected, for example stored on it or, as in 5 shown with the clamping leg 210 integrally formed. Correspondingly, in the exemplary embodiment, the 5 the clamping leg 210 the first mechanical coupling element 550 on. For example, the first mechanical coupling element 550 with the clamp spring 200 made of one piece from a metal, eg spring steel. In the embodiment of the 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 outline 460 for mechanical coupling is in contact, so one on the support 551 acting force the clamping leg 210 deflects. In the embodiment of the 5 is the first contour 460 eccentrically at least in sections.

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

In the embodiment of the 5 practices the first outline 460 a pressure force on the first mechanical coupling element for mechanical coupling 550 , about the support 551 of the first mechanical coupling element 550 out. The compressive force causes in the first mechanical coupling element 550 a tensile force to deflect the clamping leg 210 . The clamping leg 210 is in 5 in a way pulled up to the nip K to open. In 5 however, the state is in the closed position GS with closed clamping point K shown.

In the embodiment of the 5 has the operating lever 400 as a control element a second contour 470 on. The second contour 470 is also designed as an outer contour. In the embodiment of the 5 points the second contour 470 an eccentric shape. The operating lever 400 performs a pivoting movement when actuated, the instantaneous pole in the embodiment of the 5 about by a bearing journal 452 is defined. In 5 is a first distance d1 shown, which differs from the outer contour 470 of the operating lever 400 measured to the current pole. In 5 is a second distance d2 shown, which differs from the outer contour 470 of the operating lever 400 dimensioned to the current pole, but is offset by a swivel angle, eg 90 °.

The second contour 470 is in the embodiment 5 with the housing 300 over at least part of the pivoting movement of the actuating lever 400 mechanically coupled for deflection. In 5 is a housing wall 340 with the second outline 470 for mechanical coupling in contact. Will the operating handle 490 in 5 up to the open position (in 5 not shown) pivoted, so is the second contour 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 larger than the first distance d1 , as in the embodiment of 5 shown, the instantaneous pole is opposite to the direction of insertion of the conductor HE shifted.

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

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

As in the embodiment of the 5 the second contour is shown 470 eccentrically at least in sections. The second contour 470 is from the first contour 460 at least in the circumferential direction around the instantaneous pole of the pivoting movement of the actuating lever 400 spaced. In the embodiment of the 5 lie the first contour 460 and the second contour 470 towards each other regarding the current pole.

In the embodiment of the 5 has the operating lever 400 a spigot for storage 452 on that in an elongated hole 352 is performed as a counter bearing. Additionally or alternatively, the operating lever 400 through a sliding surface 353 be performed. 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 clamp connection 1 further electrically to connect for example to a module or a connector or a circuit board is in the embodiment of the 5 an example of 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 the 6 is a spring clamp connection 1 in closed position GS shown as a partial view. The actuating element is an actuating lever 400 to deflect the clamping leg 210 the clamping spring 200 educated. The operating lever 400 points to the embodiment of FIG 5 a first contour 460 on. The first contour 460 is also designed as an outer contour. Accordingly, the comments on the first contour 460 in 5 Referred.

In the embodiment of the 6 has the operating lever 400 as a control element a second contour 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 in the embodiment of the 6 about by a bearing journal 452 is defined. In 6 is a first distance d1 shown, which differs from the inner contour 471 of the operating lever 400 measured to the current pole. In 6 is a second distance d2 shown, which differs from the inner contour 471 of the operating lever 400 dimensioned to the current pole, but is offset by a swivel angle, eg 90 °.

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

Alternatively to the embodiment of the 6 is the strut 479 stationary on the contact leg 220 or on the conductor rail 100 attached so that the second contour 471 is mechanically coupled for deflection.

In the embodiment of the 6 is the operating lever 400 mounted such that a first portion of the deflection of the clamping leg 210 through the first contour 460 and a second portion of the deflection of the clamping leg 210 through the second contour 471 is effected. In order for an additive effect to occur, each part should not be negligibly small. For example, the second share is at least 20%. For example, the first share is at least 20%. For example, it is possible that the first portion and the second portion about 50% to deflect the clamping leg 210 contribute.

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

In the embodiment of the 6 is shown that the operating lever 400 a journal 452 has in an elongated hole 352 of the housing 300 is stored. Alternatively, the elongated hole 352 in part of the investment leg 220 the clamping spring 200 or in part of the conductor rail 100 be trained. When the operating lever pivots 400 this performs a rotary movement around the instantaneous pole. This rotational movement component of the operating lever 400 causes a first part of the deflection of the clamping leg 210 . The rotary motion component is superimposed by a translational motion component, with a translatory motion of the instantaneous pole through the second contour 471 is effected. The current pole is inside the slot 352 against the direction of insertion HE of the leader moves. 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 the 7 is a spring clamp connection 1 for connecting an electrical conductor 2nd in closed position GS shown as a partial view. The actuating element is an actuating lever 400 to deflect the clamping leg 210 the clamping spring 200 educated.
The operating lever 400 points to the embodiment of FIG 5 a first contour 460 on. The first contour 460 is also designed as an outer contour. Accordingly, the comments on the first contour 460 in 5 Referred.

In the embodiment of the 7 has the operating lever 400 as a control element a second contour 472 on. The second contour 472 is designed as an inner contour. The second contour 472 is in the embodiment 7 with the housing 300 over at least part of the pivoting movement of the actuating lever 400 mechanically coupled for deflection. This is a fixed strut 479 provided in the second contour formed as a path 472 slides with the swivel motion. In 7 is the strut 479 in the housing 300 and / or in the investment leg 220 and / or in the Track 100 fixed in place. Will the operating handle 490 in 7 up to the open position (in 7 not shown) pivoted, so the strut 479 in the second contour 472 in the end position. The instantaneous pole becomes opposite to the direction of insertion of the conductor HE shifted.

In the embodiment of the 7 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 the 7 the second contour is shown 472 trained like a train.

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

Reference list

1

Spring clamp connection

100

Track

110

Floor area, floor section

120

Track wall

130

Connection, knife contact

200

Clamping spring

209

opening

210

Clamping leg

211

Clamping edge

220

Investment leg

221, 222

web

225, 226

indentation

227

opening

228, 229

Contact leg section

230

Feather arch, feather root

290, 291

opening

300

casing

310

Conductor guide channel

352

Counter bearing, slot

400

Operating lever

410

Operating area, operating section

419

Bearing, eyelet

450, 451

Swivel 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

Direction of insertion

GS

Closed position

K

Nip

OS

Open position

QUOTES INCLUDE IN THE DESCRIPTION

This list of documents listed by the applicant has been generated automatically and is only included 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), the clamping spring (200) having 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 mechanically coupling 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). 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) the opening (290, 291) reaches through in the central area. Spring-force terminal connection (1) according to one of the preceding claims, in which the opening (290) has a size which permits 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-force 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 clamp 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 clamp 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 for mechanical coupling on the actuating element (400) and / or on the clamping leg (210). 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) 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 mechanically coupling 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 inside the first indentation (225) and the second mechanical coupling element (520) is arranged inside 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 formed in one piece with the clamping leg. Spring clamp connection (1) according to one of the Claims 9 or 10th , in which the first mechanical coupling element (510) and / or the second mechanical coupling element (520) are formed in one piece with the actuating element (400) or as separate elements. Spring-force 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-force 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) over 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 Pivoting movement of the actuating element (400) is mechanically coupled for deflection, - In which the actuating element (400) is mounted such 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 clamp 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 clamp connection (1) according to one of the Claims 15 to 17th , in which the first portion of the deflection is brought about by a predominantly rotational movement of the actuating element (400), and in which the second portion of the deflection is brought about by a predominantly translatory movement of the actuating element (400) overlying the rotational movement. Spring clamp 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 clamp 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 clamp connection (1) according to one of the Claims 15 to 20 , 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 clamp connection (1) according to one of the Claims 15 to 21 , 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 clamp connection (1) according to one of the Claims 15 to 22 , with a first mechanical coupling element (550), the clamping leg (210) being 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 causes a tensile force in the first mechanical coupling element (500) to deflect the clamping leg (210).

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