DE102018129949A1 - Spring clamp for connecting conductors - Google Patents

Abstract

Spring clamp for connecting conductors, - with a first movable clamping element (12), - with a second movable clamping element (14) and - with a first current-conducting element (16) for establishing an electrically conductive connection between conductors (48, 52) to be connected, - Wherein the first movable clamping element (12) for resiliently pressing a first conductor (48) to the first current conducting element (16) is set up and - wherein the second movable clamping element (14) for resiliently pressing a second conductor (52) against the first current-conducting element (16), characterized by - a second current-conducting element (18) for establishing a further electrically conductive connection between the conductors (48, 52) to be connected, - the second current-conducting element (18) on the first movable clamping element (12 ) and the second movable clamping element (14) is attached.

Description

The present invention relates to a spring-loaded terminal for connecting conductors to a first movable clamping element, to a second movable clamping element and to a first current-conducting element for establishing an electrically conductive connection between conductors to be connected, the first movable clamping element being used for resiliently pressing a first conductor the first current-conducting element is set up and the second movable clamping element is set up for resiliently pressing a second conductor onto the first current-conducting element.

Spring clips are used to connect electrical conductors in a simple and reliable manner in an electrically conductive and detachable manner. Known spring clamp terminals have the disadvantage that a high spring clamp force often has to be applied in order to establish a reliable electrically conductive connection between the conductors to be connected. This is due to the fact that, in particular in the case of spring-loaded terminals with a variable opening width for accommodating different conductor cross sections, only one-sided contacting of a respective conductor end to a rigid current-conducting element is formed. The respective tension springs for applying these clamping forces and the load-bearing components for supporting the clamping forces must accordingly be dimensioned in a complex manner.

As a result, even during manual assembly of the conductors to be connected to such a spring-loaded terminal, high assembly forces must be exerted by the respective fitter in order to clamp the spring-loaded terminal around the respective conductor ends in the designated clamping areas.

Known clamping mechanisms also require a large installation space, so that an increased space requirement is required for the assembly of the spring-loaded terminal.

Against this background, the present invention is based on the technical problem of specifying a spring-loaded terminal which does not have the disadvantages described above or at least to a lesser extent, and in particular enables reliable contacting of conductors with simultaneously lower clamping forces.

The technical problem described above is solved by a spring-loaded terminal according to claim 1. Further developments of the invention result from the dependent claims and the description below.

The invention relates to a spring-loaded terminal for connecting conductors, with a first movable clamping element, with a second movable clamping element and with a first current-conducting element for establishing an electrically conductive connection between conductors to be connected, the first movable clamping element for resiliently pressing a first conductor the first current-conducting element is set up and the second movable clamping element is set up for resiliently pressing a second conductor onto the first current-conducting element. The spring-loaded terminal has a second current-conducting element for establishing a further electrically conductive connection between the conductors to be connected, the second current-conducting element being fastened to the first movable clamping element and the second movable clamping element.

The electrical connection of the conductors as a whole can be improved by the additional electrically conductive connection. The required spring force can be reduced compared to previously known solutions with one-sided contacting.

In particular, the conductors to be contacted can now be bordered on two sides and contacted on both sides in such a way that two separate and spaced apart electrically conductive connections are formed between the conductors to be connected, insofar as these are clamped in the spring-loaded terminal.

In other words, when one speaks of a resiliently elastic pressing of a conductor onto the first current-conducting element, this means that a respective conductor is clamped between the associated clamping element and the first current-conducting element, a tensioning force being applied by a tensioning spring acting on the clamping element .

The first clamping element can be coupled to a first tension spring, such as a coil spring, a spiral spring, a leaf spring or the like, which prestresses the first clamping element in the direction of the first current-conducting element.

The second clamping element can be coupled to a second tension spring, such as a coil spring, a spiral spring, a leaf spring or the like, which prestresses the second clamping element in the direction of the first current-conducting element.

It can be provided that the first clamping element bears at least in sections on the first current-conducting element in a closed position, in which no conductor is received between the first clamping element and the first current-conducting element.

It can be provided that the second clamping element, in a closed position in which no conductor is received between the second clamping element and the first current-conducting element, bears against the first current-conducting element at least in sections.

It can be provided that the first clamping element rests resiliently biased against the first current-conducting element in the aforementioned closed position, a tension spring coupled to the first clamping element pressing or pressing the first clamping element against the first current-conducting element. Alternatively or additionally, it can be provided that the second clamping element rests in the aforementioned closed position in a resiliently biased manner on the first current-conducting element, a tension spring coupled to the second clamping element pressing or pressing the second clamping element onto the first current-conducting element. In this way, it can be ensured during transport and assembly that, unless a conductor is attached to the spring-loaded terminal, the clamping elements are reliably held in the closed position.

According to a further embodiment of the spring-loaded terminal, it is provided that the second current-conducting element is a flexible conductor, such as a current band or the like. If one speaks in the present case of a flexible conductor, it is in particular a thin-walled, strip, strip or strand-shaped conductor, the thickness of which is measured transversely to its longitudinal extent or the diameter measured transversely of its longitudinal extent is less than one fifth of its developed length measures, in particular measures less than a tenth of its unwound length, furthermore in particular measures less than a twentieth of its unwound length.

In particular, the flexible conductor is reversibly deformable, so that there is no plastic deformation of the flexible conductor as a result of a relative movement of the clamping elements.

In particular, a relative movement of the clamping elements to one another does not lead to an elastic expansion of the flexible conductor, a length reserve of the flexible conductor being held between the clamping elements in order to bridge a maximum offset between the clamping elements.

According to a further embodiment of the spring clamp, it is provided that the second current-conducting element is deformable and / or movable as a result of a relative movement of the first clamping element with respect to the second clamping element and / or as a result of a relative movement of the second clamping element with respect to the first clamping element. The second current conducting element can e.g. a flexible conductor configured in the manner described above.

Provision can be made for the second current-conducting element to be stretchable and compressible as a result of a relative movement of the first clamping element with respect to the second clamping element and / or as a result of a relative movement of the second clamping element with respect to the first clamping element. The second current conducting element can e.g. a flexible conductor configured in the manner described above.

It can be provided that the second current conducting element is fastened to a first fastening point of the first clamping element, the second current conducting element is fastened to a second fastening point of the second clamping element and that a developed length of the second current conducting element is greater than or equal to a maximum distance of the first fastening point from the second Attachment point is. It can thus be ensured in a simple manner that the second current-conducting element is not damaged or stretched elastically by moving the clamping elements relative to one another or detaches from the fastening points.

According to a further embodiment of the spring-loaded terminal, the first clamping element is coupled to a tension spring and is set up to set a clamping height limited between the first current-conducting element and the first clamping element. The spring-loaded terminal can be adapted to accommodate different conductor cross-sections. As an alternative or in addition, it can be provided that the second clamping element is coupled to a tension spring and is set up to set a clamping height limited between the first current-conducting element and the second clamping element.

The tension spring can be a helical compression spring which is compressed in the tensioned state in order to provide a tension force for fixing a conductor between a respective clamping element and the first current-conducting element.

In order to enable a simple and rapid opening of the spring-loaded terminal for inserting a first conductor, the first clamping element can be moved in a substantially linear stroke movement along a linear guide, around a clamping region between the first current-conducting element and the first clamping element for inserting and tensioning the first conductor , in particular a conductor end of the first conductor.

Such a linear guide can by means of a groove in the housing and one of the Clamping element protruding molded elements guided within the groove. The linear guide can be formed indirectly, in which another component, to which the clamping element is attached, in turn has a linear guide.

In order to enable a simple and rapid opening of the spring-loaded terminal for inserting a second conductor, the second clamping element can be moved in a substantially linear stroke movement along a linear guide, in order to create a clamping area between the first current-conducting element and the second clamping element for inserting and tensioning the second conductor , in particular a conductor end of the first conductor.

A clamping element, that is to say the first and / or the second clamping element, can have a clamping plate which has for direct contact with a conductor to be clamped and contacted. The clamping plate of the clamping element can be exchangeable and e.g. be fastened by means of a screw connection.

A clamping element, that is to say the first and / or the second clamping element, can have a clamping sleeve which, with a clamping sleeve, forms an intermediate space in which a clamping spring is received, in particular the helical compression spring described above. The helical compression spring can be compressible and thus clampable by the clamping sleeve approaching the clamping sleeve, or vice versa.

A spring travel can be limited by a positive connection between the clamping sleeve and the clamping sleeve, which defines a maximum relative movement of the clamping sleeve to the clamping sleeve. For example, the clamping sleeve can have a pin projecting on the jacket side, which is guided in a jacket slot groove of the clamping sleeve which is delimited on both sides.

It can be provided that the first clamping element is part of a first toggle lever mechanism, pivoting a first actuating element being converted into movement and / or tensioning of the first clamping element. With the help of the toggle mechanism, as a result of the translation, high spring forces can also be applied by a mechanic, the swivel mechanism taking up a small amount of space and the spring-loaded terminal being of compact design.

As an alternative or in addition, it can be provided that the second clamping element is part of a second toggle lever mechanism, with pivoting of a second actuating element being converted into movement and / or tensioning of the second clamping element. With the help of the toggle mechanism, as a result of the translation, high spring forces can also be applied by a mechanic, the swivel mechanism taking up a small amount of space and the spring-loaded terminal being of compact design.

The first and / or the second actuating element can be mechanically locked or locked in a closed position in which a conductor is clamped between the respectively assigned clamping element and the first current-conducting element. As a result, reliable contacting can be brought about, which cannot be released by vibrations or the like.

Locking in a closed position can take place by means of dead center kinematics, with self-locking in the closed position. The locking in the closed position is independent of whether a ladder is included or not.

In particular, the first and / or the second toggle lever mechanism forms dead center kinematics, which causes the associated clamping element to remain in a closed position in a self-locking, spring-loaded manner. Differences in clamping height are compensated for in particular by a tension spring, so that dead center locking takes place in the closed position regardless of whether a conductor is received in the clamping area.

It can be provided that at least one actuating element has an opening for inserting a screwdriver in order to pivot the actuating element using the screwdriver used as a lever and to transfer the associated clamping element into an open position in which a conductor or a conductor end between the respective clamping element and the first current conducting element can be inserted.

According to alternative configurations, it can be provided that both the first clamping element and the second clamping element can be movable via a common toggle lever mechanism. For example, a single actuating element can be coupled to both the first and the second clamping element in order to open or open a slide-in insert area for the respective conductor.

Alternatively, it can be provided that the first actuation element of the first toggle lever mechanism can be coupled to the second actuation element of the second toggle lever mechanism, so that actuation of the one actuation element simultaneously leads to actuation of the other actuation element by both respective clamping elements to transfer an open position. It can be provided that such a coupling is designed to be detachable or switchable, so that the actuating elements can be actuated together as required in a coupled state or, in a decoupled state, can be actuated separately and independently of one another.

It can be provided that the first current-conducting element is fastened to a housing of the spring-loaded terminal, the first current-conducting element forming a stop for clamping and fixing the conductors through the clamping elements. In particular, it can be provided that the current bar cannot move relative to the housing in order to provide a defined stop.

Alternatively or additionally, it can be provided that the first connecting element has a recess for inserting the first and second conductors. When viewed in cross-section, the recess can be at least partially arc-shaped or circular-arc-shaped in order to at least partially approximate an outer contour of the round conductor to be accommodated and thus to enlarge the contact area with the conductor to be accommodated.

As an alternative or in addition, it can be provided that the first current-conducting element has a contact surface with a corrugation in order to reliably accommodate multi-core conductors.

A respective contact surface provided on a clamping element, which is set up to bear against a conductor to be clamped and contacted, can have a corrugation in order to also reliably accommodate multi-core conductors.

A respective contact surface provided on a clamping element, which is set up to bear against a conductor to be clamped and contacted, can be formed in an arcuate or circular arc shape, at least in sections, in order to at least partially approximate an outer contour of the circular conductor to be accommodated and thus the contact surface to the receptacle Enlarge ladder.

The second current-conducting element can have a first stop, which bears against a fastening opening of the first clamping point. The second current-conducting element can have a second stop, which bears against a fastening opening of the second clamping point. In this way, a length section of the second current-conducting element, which extends between the first and second clamping elements, can be defined in a defined manner without there being the risk that the second current-conducting element will be compressed when the offset between the first clamping element and the second clamping element is reduced, so that the leads second current-conducting element in a fastening opening, which could lead to damage to the second current-conducting element when the offset is increased again.

• 1 eine erfindungsgemäße Federkraftklemme in einer perspektivischen Ansicht von oben;
• 2 die Federkraftklemme aus 1 unter Ausblendung einer Halbschale des Gehäuses;
• 3 die Federkraftklemme aus 2 in einer Seitenansicht;
• 4 die Federkraftklemme aus 2 mit eingeklemmten Leitern;
• 5 die Federkraftklemme aus 2 mit einer geöffneten Klemmstelle;
• 6 die Federkraftklemmen aus 2 in einer seitlichen Schnittdarstellung;
• 7 die Federkraftklemme aus 2 in einer perspektivischen Darstellung von oben, mit einem Leiter und einer Betätigung durch einen Schraubendreher;
• 8 die Federkraftklemme aus 2 in einer perspektivischen Darstellung von oben, mit zwei Leitern und einer Betätigung durch einen Schraubendreher.

The invention is described in more detail below with the aid of a drawing showing exemplary embodiments. Each shows schematically:

• 1 a spring clip according to the invention in a perspective view from above;
• 2nd the spring clamp 1 hiding a half shell of the housing;
• 3rd the spring clamp 2nd in a side view;
• 4th the spring clamp 2nd with jammed conductors;
• 5 the spring clamp 2nd with an open nip;
• 6 the spring clips 2nd in a side sectional view;
• 7 the spring clamp 2nd in a perspective view from above, with a conductor and actuation by a screwdriver;
• 8th the spring clamp 2nd in a perspective view from above, with two conductors and actuation by a screwdriver.

1 shows a spring clip 2nd for connecting conductors. The spring clamp 2nd has a first nip 4th for inserting a first conductor and a second clamping point 6 for inserting a second conductor.

The spring clamp 2nd has a two-part housing, with a first half shell 8th and a second half shell 10th .

The inside of the spring-cage terminal 2nd existing elements are discussed below with reference to the 2-5 described, the half-shell 10th is hidden to expose the interior of the housing.

The spring clamp 2nd has a first movable clamping element 12 that of the first nip 4th assigned. The spring clamp 2nd has a second movable clamping element 14 that the second nip 6 assigned.

The spring clamp 2nd has a first current conducting element 16 for establishing an electrically conductive connection between conductors to be connected, the first terminal point 4th to introduce a first conductor and the second terminal point 6 is set up for introducing a second conductor.

The first movable clamping element 12 is for resiliently pressing a first conductor onto the first current-conducting element 16 set up. The second movable clamping element 14 is for resiliently pressing a second conductor onto the first current-conducting element 16 set up.

The spring clamp 2nd points next to the first current conducting element 16 additionally a second current conducting element 18th for establishing another electrically conductive connection between those in the clamping points 4th , 6 ladders to be pinched.

The second current conducting element 18th is on the first movable clamping element 12 and the second movable clamping element 14 attached.

The second current conducting element 18th is a flexible conductor in the present case 18th and as a current band 18th executed.

The second current conducting element 18th is due to a relative movement of the first clamping element 12 opposite the second clamping element 14 , and vice versa, deformable and movable. The second current-conducting element is present 18th due to a relative movement of the clamping elements 12 , 14 stretchable and compressible.

The second current conducting element 18th is at a first attachment point 20th of the first clamping element 12 attached, with the first attachment point 20th in the present case as a gap or slot-shaped opening 20th is formed in which the second current-conducting element 18th is held at the end.

The second current conducting element is analogous to this 18th at a second attachment point 22 of the second clamping element 14 attached, the second attachment point 22 of the clamping element 14 in the present case as a gap or slot-shaped opening 22 is formed, in which the second current-conducting element 18th is included at the end.

In the representation of the 2nd are the first clamping element 12 and the second clamping element 14 relative to the first current conducting element 16 arranged at the same height. In this case there is no relative offset along one stroke direction H between the first clamping element 12 and the second clamping element 14 educated.

The second current conducting element 18th is in the in 2nd shown position of the clamping elements 12 , 14 in a middle section 24th compressed so that the middle section 24th of the second current conducting element 18th in one of the first current conducting element 16 groundbreaking direction. This curvature of the middle section 24th serves as a length reserve as soon as there is an offset in the stroke direction between the clamping elements H is formed (cf. 4th and 5 ).

In the present case, therefore, the same applies to the second current-conducting element 18th that its developed length is greater than a maximum distance a of the first attachment point 20th to the second attachment point 22 is (cf. 5 ).

The first clamping element 12 is coupled to a tension spring and for setting one between the first current conducting element 16 and the first clamping element 12 limited clamp height h1 established (cf. 4th ).

The second clamping element 14 is coupled to a tension spring and for setting one between the first current conducting element 16 and the second clamping element 14 limited clamp height h2 set up.

The first clamping element 12 is in a substantially rectilinear stroke movement along the stroke direction H movable. The second clamping element 14 is also parallel along an essentially linear stroke movement or along the stroke direction H movable.

The first clamping element 12 is part of a first toggle mechanism 26 , wherein pivoting a first actuator 28 in the linear stroke movement of the first clamping element 12 is implemented or translated.

The second clamping element 14 is part of a second toggle mechanism 30th , wherein pivoting a second actuator 32 in the linear stroke movement of the second clamping element 14 is implemented or translated.

The first current conducting element 16 is immovable on the half shells 8th , 10th the spring clamp 2nd attached. The first current conducting element 16 forms a stop for clamping and fixing in the area of the clamping points 4th , 6 conductor to be inserted, with a first conductor to be inserted using the clamping element 12 resiliently elastic against the first current-conducting element 16 pressed or between the first current conducting element 16 and the first clamping element 12 is tensioned.

The first current-conducting element likewise forms 16 a stop for one in the nip 6 second conductor to be received, a second conductor in the fully assembled state by means of the clamping element 14 to the first current conducting element 16 is pressed or resiliently elastic between the first current conducting element 16 and the second clamping element 14 is tensioned.

The first current conducting element 16 has an arcuate recess viewed in cross section 34 on whose surface to be contacted with a conductor 36 has corrugation. Likewise, has a contact area 38 of the first clamping element 12 corrugation to reliably accommodate multi-core ends. Also has a contact area 40 of the second clamping element 14 a corrugation.

The actuators 28 , 32 each have an opening 42 , 44 which are set up for inserting a screwdriver around the respective actuating element 28 , 32 using the screwdriver used as a lever in this case to pivot into an open position in which the respective contact element 12 , 14 from the first current conducting element 16 or one between the first current conducting element 16 and the respective clamping element 12 , 14 clamped conductor lifted and in the lifting direction from the first current conducting element 16 or is moved away from the conductor.

2nd shows as well 3rd the spring clamp 2nd without connected to it or by means of the spring clamp 2nd electrically connected conductors. A respective clamping element is used to clamp and contact a conductor 12 , 14 from the in 2nd and 3rd Shown closed position, in which the respective clamping element 12 , 14 resiliently biased on the first current conducting element 16 in which in 5 shown open position, which is only an example for the first clamping point 4th and the first clamping element 12 is shown.

As soon as the clamping element 12 as a result of movement of the actuating element 28 that by swiveling around its swivel axis 46 in the in 5 shown open position has been transferred, a first conductor to be connected 48 in the nip 4th be introduced as in 4th shown.

A pivoting back of the actuating element 28 from the in 5 shown in the open position in 4th position shown causes a lowering of the clamping element 12 to the conductor end to be clamped and contacted 50 of the leader 48 , wherein the clamping element resiliently resilient against the conductor end 50 is tensioned. For this, the actuator 28 in the in 4th mechanically locked position shown.

In a tense state ( 4th ) is over the first current conducting element 16 a first electrically conductive connection to a second conductor clamped in an analog manner 52 or and its head end 54 produced.

In addition, the second current conducting element 18th a second electrically conductive connection using the also in the area of contacting the conductor 48 , 52 electrically conductive clamping elements 12 , 14 produced.

How 4th can be seen, the respective clamp height adjusts h1 respectively. h2 thanks to the toggle mechanism automatically adjusts to the conductor cross-section to be picked up. That as a flexible current band 18th trained second Stromleitelement 18th is the same when opening a terminal point ( 5 ) as well as in the fully clamped state ( 4th ) an offset of the clamping elements 12 , 14 along the stroke or height direction H out.

6 shows a sectional view of the spring clip 2nd . The clamping element 12 has a clamping plate 56 with a collet 58 is screwed. The clamping sleeve 58 is with an adapter sleeve 59 arranged nested, being within one between the ferrule 58 and the adapter sleeve 59 limited space coil spring 60 is added to the clamping element 12 , the present from the clamping plate 56 and the clamping sleeve screwed to it 58 is formed, in the direction of the first current-conducting element 16 to press.

Between the ferrule 58 and the clamping plate 56 is the second current conducting element 18th at the end by means of the screw connection 62 tense and also positively fixed.

The clamping sleeve 58 has a jacket-side slot 64 on which a screw shaft 66 a screw 68 is led.

Through the slot 64 and the screw shaft 66 is the travel of the coil spring 60 at the stop 70 limited, ie the clamping sleeve 58 can at most as far as in the adapter sleeve 59 be indented until the stop 70 of the slot 64 on the screw shaft 68 is present.

The screw shaft 66 also serves as a driver when lifting the clamping sleeve 58 from the first current conducting element 16 at a stop 72 of the slot 64 is present.

The adapter sleeve 59 and the actuator 28 are using a lever hinged at the end 74 ( 5 ) coupled. The adapter sleeve 59 is in a linear guide 76 led to the half-shell 8th is trained.

To pivot the actuator 28 to facilitate a screwdriver 78 into the opening 42 introduced and used as a lever ( 7 ). In the in 7 shown open position of the terminal point 4th lies the screw shaft 66 the screw 68 at the stop 72 of the slot 64 the clamping sleeve 58 at. The leader 48 can with its leader end 50 in the nip 4th be introduced.

Once the leader 48 with its leader end 50 is inserted into the nip, the actuator 28 with the screwdriver 78 in the closed position according to 8th pivoted. The actuator 28 is locked mechanically in the closed position.

The pivoting of the actuator 28 from the in 7 shown in the open position in 8th Shown closed position causes the first clamping element 12 with its clamp 56 to the end of the ladder 50 is lowered and with the corrugated contact surface 38 at the head end 50 is present.

In addition, the pivoting of the actuating element causes 28 from the in 7 shown in the open position in 8th Shown closed position that once the clamping plate 56 on the head end 50 sits, the ferrule 58 of the clamping element 12 under tension of the coil spring 60 into the adapter sleeve 59 is indented so that the screw shaft 66 along the slot 64 towards the stop 70 to be led. In this way the coil spring 60 between the sleeves 58 , 59 compressed, so that a resulting spring force tensions the conductor end 50 between the first current conducting element 16 and the contact plate 56 of the clamping element 12 causes.

The respective toggle mechanism 26 , 30th forms a dead center kinematics, which causes a self-locking stay in the closed position - regardless of whether a conductor is installed or not. So must a respective actuator 28 , 32 from the closed position (cf. 3rd or 8th ) are pivoted by several degrees around the respective associated pivot axis in order to overcome dead center against the spring force. As far as the dead center is not overcome starting from the closed position, the toggle mechanism 26 , 30th spring loaded moved back to the closed position.

Reference symbol list

2nd

Spring clamp

4th

first clamping point

6

second clamping point

8th

first half shell

10th

second half shell

12

first clamping element

14

second clamping element

16

first current conducting element

18th

second current conducting element

20th

Attachment point

22

Attachment point

24th

Middle section

26

first toggle mechanism

28

first actuator

30th

second toggle mechanism

32

second actuator

34

Recess

36

corrugated surface

38

Contact area

40

Contact area

42

opening

44

opening

46

Swivel axis

48

first leader

50

Head end

52

second leader

54

Head end

56

Clamping plate

58

Clamping sleeve

59

Adapter sleeve

60

Coil spring

62

Screw connection

64

slot

66

Screw shaft

68

screw

70

attack

72

attack

74

lever

76

Linear guide

78

screwdriver

H

Stroke direction

h1

Clamp height

h2

Clamp height

Claims (10)

Spring clamp for connecting conductors, with a first movable clamping element (12), - with a second movable clamping element (14) and - with a first current-conducting element (16) for establishing an electrically conductive connection between conductors (48, 52) to be connected, - the first movable clamping element ( 12) is set up for resiliently pressing a first conductor (48) onto the first current-conducting element (16) and - the second movable clamping element (14) is designed for resiliently pressing a second conductor (52) against the first current-conducting element (16) , characterized by - a second current-conducting element (18) for establishing a further electrically conductive connection between the conductors (48, 52) to be connected, - the second current-conducting element (18) on the first movable clamping element (12) and the second movable clamping element ( 14) is attached. Spring clamp after Claim 1 , characterized in that - the second current-conducting element (18) is a flexible conductor (18), such as a current band (18) or the like. Spring clamp after Claim 1 or Claim 2 , characterized in that - the second current-conducting element (18) is deformable as a result of a relative movement of the first clamping element (12) relative to the second clamping element (14) and / or as a result of a relative movement of the second clamping element (14) relative to the first clamping element (12) and / or is movable. Spring clamp according to one of the Claims 1 to 3rd , characterized in that - the second current-conducting element (18) can be stretched as a result of a relative movement of the first clamping element (12) relative to the second clamping element (14) and / or as a result of a relative movement of the second clamping element (14) relative to the first clamping element (12) and is compressible. Spring clamp according to one of the Claims 1 to 4th , characterized in that - the second current conducting element (18) is fastened to a first fastening point (20) of the first clamping element (12), - the second current conducting element (18) is fastened to a second fastening point (22) of the second clamping element and - that a developed length of the second current conducting element (18) is greater than or equal to a maximum distance (a) of the first fastening point (20) from the second fastening point (22). Spring clamp according to one of the Claims 1 to 5 , characterized in that - the first clamping element (12) is coupled to a tension spring (60) and is set up to set a clamping height (h1) limited between the first current-conducting element (16) and the first clamping element (12) and / or - the second Clamping element (14) is coupled to a tension spring and is set up to set a clamping height (h2) limited between the first current-conducting element (16) and the second clamping element (14). Spring clamp according to one of the preceding claims, characterized in that - the first clamping element (12) can be moved in a substantially linear stroke movement along a linear guide (76), and / or - the second clamping element (14) can be moved in a substantially linear stroke movement a linear guide is movable. Spring force clamp according to one of the preceding claims, characterized in that - the first clamping element (12) is part of a first toggle lever mechanism (26), wherein pivoting of a first actuating element (28) into movement and / or tensioning of the first clamping element (12) is implemented, and / or - the second clamping element (14) is part of a second toggle lever mechanism (30), wherein pivoting of a second actuating element (32) is converted into movement and / or tensioning of the second clamping element (14) - in particular, that the first and / or the second toggle mechanism (26, 30) forms dead center kinematics, which causes the associated clamping element to remain in a closed position in a self-locking, spring-loaded manner. Spring-loaded terminal according to one of the preceding claims, characterized in that - the first current-conducting element (16) is fastened to a housing (8, 10) of the spring-loaded terminal (2), the first current-conducting element (16) having a stop for clamping and fixing the conductors ( 48, 52) through the clamping elements (12, 14). Spring-loaded terminal according to one of the preceding claims, characterized in that - the first current-conducting element (16) has a recess (34) for inserting the first and second conductors (48, 52), and / or - the first current-conducting element (16) has a contact surface ( 36) with corrugation.

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