CN111224276B

CN111224276B - Elastic terminal for connecting conductors

Info

Publication number: CN111224276B
Application number: CN201911182148.0A
Authority: CN
Inventors: 霍尔格·施泰因哈格; 曼纽尔·卡米诺; 迪米特里·盖尔; 马丁·格布哈特; 米夏埃尔·雷纳克; 拉尔夫·霍普曼
Original assignee: Phoenix Contact GmbH and Co KG
Current assignee: Phoenix Contact GmbH and Co KG
Priority date: 2018-11-27
Filing date: 2019-11-27
Publication date: 2021-09-07
Anticipated expiration: 2039-11-27
Also published as: CN111224276A; DE102018129949A1

Abstract

A spring terminal for connecting conductors, having a movable first clamping element (12), having a movable second clamping element (14) and having a first conductive element (16) for establishing an electrically conductive connection between conductors (48,52) to be connected, a movable first clamping element (12) is provided for spring-elastically pressing the first conductor (48) against the first conductive element (16), and wherein a movable second clamping element (14) is provided for spring-elastically pressing the second conductor (52) against the first conductive element (16), characterized by-a second conductive element (18) for establishing a further electrically conductive connection between the conductors (48,52) to be connected, -wherein, the second electrically conductive element (18) is fixed to the first displaceable clamping element (12) and the second displaceable clamping element (14).

Description

Elastic terminal for connecting conductors

Technical Field

The invention relates to a spring terminal for connecting conductors, comprising a first displaceable clamping element, a second displaceable clamping element and a first conductive element for producing an electrically conductive connection between conductors to be connected, wherein the first displaceable clamping element is provided for elastically pressing a first conductor spring onto the first conductive element, and wherein the second displaceable clamping element is provided for elastically pressing a second conductor spring onto the first conductive element.

Background

The spring terminals serve to connect the electrical conductors to one another in an electrically conductive and furthermore releasable manner in a simple and reliable manner. A disadvantage of the known spring terminals is that a high spring clamping force must generally 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 terminals with variable opening width to accommodate different conductor cross sections, only one-sided contact of the respective conductor end with the rigid conductive element is made. The individual tensioning springs for applying the clamping force and the load-bearing components for supporting the clamping force have to be dimensioned accordingly in a complicated manner.

During the manual assembly of the conductors to be connected to such spring terminals, the respective fitter therefore also applies a high assembly force in order to tension the spring terminal around the respective conductor end in the defined clamping region.

Furthermore, the known tensioning mechanisms require a large installation space, so that a greater space requirement is required for the assembly of the spring terminals.

Disclosure of Invention

Against this background, the object of the present invention is to provide a spring terminal which does not have the aforementioned disadvantages or at least has them to a lesser extent and which, in particular, enables reliable contacting of the conductors with a lower clamping force.

The invention relates to a spring terminal for connecting conductors, comprising a first displaceable clamping element, a second displaceable clamping element and a first conductive element for producing an electrically conductive connection between conductors to be connected, wherein the first displaceable clamping element is provided for elastically pressing a first conductor spring onto the first conductive element, and wherein the second displaceable clamping element is provided for elastically pressing a second conductor spring onto the first conductive element. The spring terminal has a second conductive element for producing a further conductive connection between the conductors to be connected, wherein the second conductive element is fixed to the movable first clamping element and the movable second clamping element.

The electrical connection of the conductors can be improved overall by the additional electrically conductive connection. The required spring force can be reduced with respect to known single-sided contact solutions.

In particular, the conductor to be contacted can now be enclosed on both sides and contacted on both sides, so that two separate electrically conductive connections spaced apart from one another are formed between the conductor to be connected as soon as it is clamped in the spring terminal.

If it is mentioned here that the conductor springs are pressed elastically against the first conductive element, this means that, in other words, the respective conductor is tensioned between the respective clamping element and the first conductive element, wherein the tensioning force is applied by the tensioning spring acting on the clamping element.

The first clamping element can be coupled to a first tensioning spring (for example a helical spring, a spiral spring, a leaf spring or the like), which pretensions the first clamping element in the direction of the first electrically conductive element.

The second clamping element can be coupled to a second tensioning spring (for example a helical spring, a spiral spring, a leaf spring or the like) which pretensions the second clamping element in the direction of the first electrically conductive element.

It can be provided that the first clamping element rests at least in sections against the first current-carrying element in the closed state, in which no conductor is accommodated between the first clamping element and the first current-carrying element.

It can be provided that the second clamping element rests at least in sections against the first conductive element in a closed state, in which no conductor is accommodated between the second clamping element and the first conductive element.

In the closed state, the first clamping element can be in spring-loaded contact with the first electrically conductive element, wherein a tensioning spring coupled to the first clamping element presses or presses the first clamping element against the first electrically conductive element. Alternatively or additionally, it can be provided that the second clamping element bears with spring bias against the first electrically conductive element in the closed state, wherein a tensioning spring coupled to the second clamping element presses or presses the second clamping element against the first electrically conductive element. It can thus be ensured during transport and assembly that the clamping element is reliably held in the closed state as long as no conductor is fixed to the spring terminal.

According to another embodiment of the spring terminal, the second conductive element is a flexible conductor, such as a conductive strip or the like. If a flexible conductor is mentioned here, this is in particular a thin-walled, strip-shaped or strand-shaped conductor whose thickness measured transversely to its longitudinal extent or whose diameter measured transversely to its longitudinal extent is less than one fifth of its developed length, in particular less than one tenth of its developed length, and further in particular less than one twentieth of its developed length.

In particular, the flexible conductor can be reversibly deformed such that a relative movement of the clamping elements with respect to each other does not lead to a plastic deformation of the flexible conductor.

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

According to a further embodiment of the spring terminal, the second electrically conductive element can be deformed and/or displaced 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 conductive element may be, for example, a flexible conductor configured in the manner described above.

It can be provided that the second electrically conductive element can be expanded and compressed 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 conductive element may be, for example, a flexible conductor configured in the manner described above.

Provision can be made for the second electrically conductive element to be fastened to the first fastening point of the first clamping element and for the second electrically conductive element to be fastened to the second fastening point of the second clamping element, and for the second electrically conductive element to have a spread length which is greater than or equal to the maximum distance between the first fastening point and the second fastening point. It can thus be ensured in a simple manner that the second electrically conductive element is not damaged or elastically stretched or released from the fixing point as a result of the movement of the clamping elements relative to one another.

According to a further embodiment of the spring terminal, the first clamping element is coupled to the tensioning spring and is designed to adjust a clamping height defined between the first electrically conductive element and the first clamping element. Thus, the spring terminals can be adjusted to accommodate different conductor cross-sections. Alternatively or additionally, it can be provided that the second clamping element is coupled to the tensioning spring and is provided for adjusting a clamping height defined between the first electrically conductive element and the second clamping element.

The tensioning spring may be a helical compression spring which is compressed in a tensioned state so as to provide a tensioning force for securing the conductor between the respective clamping element and the first conductive element.

In order to be able to open the spring terminal simply and smoothly for inserting the first conductor, the first clamping element can be moved along the linear guide in a substantially linear lifting movement in order to release the clamping region between the first conductive element and the first clamping element for inserting and tensioning the first conductor, in particular the conductor end of the first conductor.

Such a linear guide can be formed by means of a recess of the housing and a profiled element which projects from the clamping element and is guided within the recess. The linear guide can be formed indirectly, wherein the other part to which the clamping element is fastened itself has a linear guide.

In order to be able to open the spring terminal simply and smoothly for inserting the second conductor, the second clamping element can be moved along the linear guide in a substantially linear lifting movement in order to release the clamping region between the first conducting element and the second clamping element for inserting and tensioning the second conductor, in particular the conductor end of the first conductor.

The clamping element, i.e. the first clamping element and/or the second clamping element, can have a clamping plate for directly abutting against the conductor to be clamped and to be contacted. The clamping plate of the clamping element can be exchangeable and can be fixed, for example, by means of a screw connection.

The clamping element, i.e. the first clamping element and/or the second clamping element, can have a clamping sleeve which forms a chamber with the tensioning sleeve, in which a tensioning spring, in particular the above-mentioned helical compression spring, is accommodated. The helical compression spring may be compressible and thus tensionable by approach of the tensioning sleeve relative to the clamping sleeve or vice versa.

The spring path can be defined by a form-fitting connection between the clamping sleeve and the tensioning sleeve, which determines the maximum relative movement of the tensioning sleeve with respect to the clamping sleeve. For example, the tensioning sleeve can have a circumferentially projecting pin which is guided in circumferentially bounded recesses on both sides of the clamping sleeve.

It can be provided that the first clamping element is part of a first toggle lever mechanism, wherein pivoting of the first actuating element is converted into a movement and/or tensioning of the first clamping element. Due to the gear ratio, high spring forces can also be applied by the fitter by means of the toggle lever mechanism, wherein the pivoting mechanism takes up little installation space and the spring terminals can be constructed compactly.

Alternatively or additionally, it can be provided that the second clamping element is part of a second toggle lever mechanism, wherein pivoting of the second actuating element is converted into a movement and/or tensioning of the second clamping element. Due to the gear ratio, high spring forces can also be applied by the fitter by means of the toggle lever mechanism, wherein the pivoting mechanism takes up little installation space and the spring terminals can be constructed compactly.

The first actuating element and/or the second actuating element can be mechanically locked or latched in a closed state in which the conductor is clamped between the respective clamping element and the first electrically conductive element. Therefore, reliable contact can be achieved, which does not come off due to vibration or the like.

The locking in the closed state can be achieved by a dead point movement mechanism, wherein a self-locking is achieved in the closed state. The locking in the closed state is independent of whether a conductor is accommodated.

In particular, the first and/or second toggle lever mechanism forms a dead center movement mechanism which causes the respective clamping element to stay in the closed state in a self-locking, spring-loaded manner. In this case, the clamping height difference is compensated in particular by the tensioning spring, so that a dead-center lock in the closed state is achieved independently of whether a conductor is accommodated in the clamping region.

It can be provided that at least one actuating element has an opening for inserting a screwdriver, in order to pivot the actuating element with the aid of the screwdriver acting as a lever and to bring the corresponding clamping element into an open state in which a conductor or a conductor end can be inserted between the respective clamping element and the first electrically conductive element.

According to an alternative embodiment, it can be provided that both the first clamping element and the second clamping element can be movable by means of a common toggle lever mechanism. Thus, for example, a single actuating element can be coupled to both the first clamping element and the second clamping element in order to release or open the insertion sliding region for the respective conductor.

Alternatively, it can be provided that the first actuating element of the first toggle lever mechanism can be coupled to the second actuating element of the second toggle lever mechanism, so that an actuation of one of the actuating elements simultaneously leads to an actuation of the other actuating element in order to transfer the two respective clamping elements into the open state. It can be provided that such a coupling device is embodied as releasable or switchable, so that the actuating elements can be actuated jointly in the coupled state or individually and independently of one another in the decoupled state, as required.

It can be provided that the first conductive element is fastened to the housing of the spring terminal, wherein the first conductive element forms a stop for tensioning and fastening the conductor by means of the clamping element. In particular, it can be provided that the conductive beam cannot move relative to the housing, so that a defined stop is provided.

Alternatively or additionally, it can be provided that the first connecting element has a recess for receiving the first and second conductor. The recess, viewed in cross section, can be at least partially curved or rounded in shape in order to at least partially approach the outer contour of the round conductor to be received and thus increase the contact surface with the conductor to be received.

Alternatively or additionally, it can be provided that the first electrically conductive element has a grooved support surface in order to also reliably receive a multi-core conductor.

The respective contact surfaces provided on the clamping element, which are provided for abutting against the conductors to be clamped and contacted, may have grooves in order to also reliably receive the multi-core conductors.

The respective contact surface provided on the clamping element, which is provided for the purpose of bearing against the conductor to be clamped and contacted, can be configured, as seen in cross section, at least in sections in the form of an arc or circular arc, in order to at least partially approach the outer contour of the circular conductor to be accommodated and thus increase the contact surface with the conductor to be accommodated.

The second electrically conductive element can have a first stop which rests against the fastening opening in the first clamping position. The second electrically conductive element can have a second stop which rests against the fastening opening of the second clamping position. Thus, the longitudinal section of the second electrically conductive element extending between the first clamping element and the second clamping element can be fixed with certainty without the risk that the compression of the second electrically conductive element results in the second electrically conductive element being pushed deeper into the fixing opening when the offset between the first clamping element and the second clamping element is reduced, which may lead to damage of the second electrically conductive element when the offset is increased again.

Drawings

The invention is further elucidated below on the basis of the drawing showing an embodiment. In which are respectively schematically shown:

fig. 1 shows a perspective view of a spring terminal according to the invention from above;

fig. 2 shows the spring terminal of fig. 1 with a housing half shell removed;

fig. 3 shows a side view of the spring terminal of fig. 2;

FIG. 4 shows the spring terminal of FIG. 2 with a conductor clamped;

fig. 5 shows the sprung terminal of fig. 2 with the clamped position open;

fig. 6 shows a side cross-sectional view of the spring terminal of fig. 2;

fig. 7 shows a perspective view of the spring terminal of fig. 2 from above, with a conductor and operated by a screwdriver;

fig. 8 shows a perspective view of the spring terminal of fig. 2 from above, with two conductors and operated by a screwdriver.

Detailed Description

Fig. 1 shows a spring terminal 2 for connecting conductors. The spring terminal 2 has a first clamping position 4 for the introduction of a first conductor and a second clamping position 6 for the introduction of a second conductor.

The spring terminal 2 has a two-part housing with a first half-shell 8 and a second half-shell 10.

The elements present in the interior of the housing of the sprung terminal 2 are explained below with reference to fig. 2 to 5, in which the half shell 10 is hidden so that the interior of the housing is visible.

The spring terminal 2 has a movable first clamping element 12, which corresponds to the first clamping position 4. The spring terminal 2 has a movable second clamping element 14, which corresponds to the second clamping position 6.

The spring terminal 2 has a first conductive element 16 for producing an electrically conductive connection between the conductors to be connected, wherein a first clamping position 4 for the insertion of a first conductor and a second clamping position 6 for the insertion of a second conductor are provided.

The movable first clamping element 12 is provided for elastically pressing the first conductor spring against the first electrically conductive element 16. A movable second clamping element 14 is provided for elastically pressing the second conductor spring against the first conductive element 16.

In addition to the first conductive element 16, the spring terminal 2 additionally has a second conductive element 18 for producing a further electrically conductive connection between the conductors to be clamped in the clamping positions 4, 6.

The second electrically conductive element 18 is fixed to the movable first clamping element 12 and the movable second clamping element 14.

The second conductive element 18 is here a flexible conductor 18 and is embodied as a conductive strip 18.

The second conductive element 18 is capable of deforming and moving with relative movement of the first clamping element 12 with respect to the second clamping element 14 and vice versa. In this case, the second electrically conductive element 18 can be expanded and compressed with a relative movement of the clamping

elements

12, 14.

The second electrically conductive element 18 is fixed to a first fastening point 20 of the first clamping element 12, the first fastening point 20 being in this case configured as a slot-like or slot-like opening 20, in which the end face of the second electrically conductive element 18 is held.

Similarly, the second conductive element 18 is fixed to a second fastening point 22 of the second clamping element 14, wherein the second fastening point 22 of the clamping element 14 is formed here as a slot-like or slot-like opening 22, in which the end face of the second conductive element 18 is accommodated.

In the illustration of fig. 2, the first clamping element 12 and the second clamping element 14 are arranged at the same height relative to the first electrically conductive element 16. In this case, no relative offset in the lifting direction H is formed between the first clamping element 12 and the second clamping element 14.

The second conductive element 18 is compressed in the middle section 24 in the position shown in fig. 2 of the clamping

elements

12,14, so that the middle section 24 of the second conductive element 18 is arched away from the first conductive element 16. This arching of the middle section 24 then serves as a length reserve as soon as an offset in the lifting direction H (see fig. 4 and 5) is formed between the clamping elements.

It is therefore appropriate here for the second conductive element 18 to be expanded to a length which is greater than the maximum distance a (see fig. 5) from the first fastening point 20 to the second fastening point 22.

The first clamping member 12 is coupled with a tension spring and is arranged for adjusting a clamping height h1 (see fig. 4) defined between the first conductive element 16 and the first clamping member 12.

The second clamping element 14 is coupled with a tensioning spring and is designed for adjusting a clamping height h2 defined between the first conductive element 16 and the second clamping element 14.

The first clamping element 12 can be moved in a substantially linear lifting movement along the lifting direction H. The second clamping element 14 can likewise be moved parallel to or in the lifting direction H along a substantially linear lifting movement.

The first clamping element 12 is part of a first toggle lever mechanism 26, wherein a pivoting movement of the first actuating element 28 is converted or converted into a linear lifting movement of the first clamping element 12.

The second clamping element 14 is part of a second toggle lever mechanism 30, wherein a pivoting movement of the second actuating element 32 translates or is converted into a linear lifting movement of the second clamping element 14.

The first conductive element 16 is fixed immovably to the half-

shells

8,10 of the spring terminal 2. The first current-conducting element 16 forms a stop for clamping and fixing the conductor to be introduced in the region of the clamping points 4,6, wherein the first conductor to be introduced is spring-elastically pressed against the first current-conducting element 16 by means of the clamping element 12 or is tensioned between the first current-conducting element 16 and the first clamping element 12.

Likewise, the first conductive element 16 forms a stop for a second conductor to be received in the clamping position 6, wherein the second conductor is pressed onto the first conductive element 16 by means of the clamping element 14 in the completely assembled state or is spring-elastically tensioned between the first conductive element 16 and the second clamping element 14.

The first conductive element 16 has a recess 34, seen in cross-section as an arc, the surface 36 of which to be in contact with the conductor has grooves. Likewise, the contact surface 38 of the first clamping element 12 has grooves in order to also securely receive the multicore conductor end. Likewise, the contact surface 40 of the second clamping element 14 is fluted.

The

actuating elements

28, 32 each have an

opening

42, 44, which is provided for the introduction of a screwdriver in order to pivot the

respective actuating element

28, 32 into an open state, in which the

respective contact element

12,14 is lifted from the first conductive element 16 or from a conductor clamped between the first conductive element 16 and the

respective clamping element

12,14 and is moved away from the first conductive element 16 or the conductor in the lifting direction, by means of the screwdriver, which in this case acts as a lever.

Fig. 2 shows the spring terminal 2 as well as fig. 3, without a conductor connected thereto or conductively connected by means of the spring terminal 2. For clamping and contacting the conductor, the

respective clamping element

12,14 is transferred from the closed state shown in fig. 2 and 3, in which the

respective clamping element

12,14 bears with spring bias against the first conductive element 16, to the open state shown in fig. 5, which is only shown by way of example for the first clamping position 4 and the first clamping element 12.

As soon as the clamping element 12 is switched to the open state shown in fig. 5 by the movement of the actuating element 28 (by pivoting about its pivot axis 46), the first conductor 48 to be connected can be introduced into the clamping position 4, as shown in fig. 4.

The pivoting back of the actuating element 28 from the open state shown in fig. 5 into the position shown in fig. 4 causes the clamping element 12 to be lowered onto the conductor end 50 of the conductor 48 to be clamped and contacted, wherein the clamping element is spring-loaded against the conductor end 50. For this purpose, the actuating element 28 is mechanically locked in the position shown in fig. 4.

In the tensioned state (fig. 4), a first electrically conductive connection is established by the first electrically conductive element 16 with the second conductor 52 or its conductor end 54 clamped in a similar manner.

In addition, a second electrically conductive connection is established via the second electrically conductive element 18 by means of the clamping

elements

12,14, which are also electrically conductively embodied in the contact region of the

conductors

48, 52.

As shown in fig. 4, the respective clamping height h1 or h2 is automatically adapted to the conductor cross section to be received by means of a toggle lever mechanism. In this case, the second conductive element 18, which is designed as a flexible conductive strip 18, compensates the offset of the clamping

elements

12,14 in the lifting or lowering direction H not only in the open clamping position (fig. 5) but also in the clamped-in state (fig. 4).

Fig. 6 shows a cross-sectional view of the sprung terminal 2. The clamping element 12 has a clamping plate 56, which is screwed to a clamping sleeve 58. The clamping sleeve 58 is arranged in a nested manner with the tensioning sleeve 59, wherein a helical spring 60 is accommodated within a chamber defined between the clamping sleeve 58 and the tensioning sleeve 59 in order to press the clamping element 12, which is formed here by the clamping plate 56 and the clamping sleeve 58 screwed thereto, in the direction of the first electrically conductive element 16.

Between the clamping sleeve 58 and the clamping plate 56, the end face of the second electrically conductive element 18 is braced by means of a screw connection 62 and is also fixed in a form-fitting manner.

The clamping sleeve 58 has a circumferential slot 64 into which a shank 66 of a bolt 68 is introduced.

The slot 64 and the threaded spindle 66 define the spring path of the helical spring 60 at the stop 70, i.e., the clamping sleeve 58 can be retracted into the tensioning sleeve 59 at most to the extent that the stop 70 of the slot 64 rests against the threaded spindle 68.

Furthermore, the threaded spindle 66 serves as a follower which rests against a stop 72 of the slot 64 when the clamping sleeve 58 is lifted from the first electrically conductive element 16.

The tensioning sleeve 59 and the actuating element 28 are coupled by means of levers 74 (fig. 5) which are each articulated at the end. The tensioning sleeve 59 is guided in a linear guide 76, which is formed toward the half-shell 8

In order to simplify the pivoting of the actuating element 28, a screwdriver 78 is inserted into the opening 42 and serves as a lever (fig. 7). In the open state of the clamping position 4 shown in fig. 7, the shank 66 of the screw 68 bears against the stop 72 of the slit 64 of the clamping sleeve 58. The conductor 48 can be inserted with its conductor end 50 into the clamping position 4.

Once the conductor 48 is inserted with its conductor end 50 into the clamped position, the actuating element 28 is pivoted by means of a screwdriver 78 into the closed state according to fig. 8. The actuating element 28 is mechanically locked in the closed state.

Pivoting of the actuating element 28 from the open position shown in fig. 7 to the closed position shown in fig. 8 lowers the first clamping element 12 with its clamping plate 56 onto the conductor end 50 and rests with the grooved contact surface 38 on the conductor end 50.

Furthermore, the pivoting of the actuating element 28 from the open position shown in fig. 7 to the closed position shown in fig. 8 causes the clamping sleeve 58 of the clamping element 12 to be retracted into the tensioning sleeve 59 under tension of the helical spring 60 as soon as the clamping plate 56 is placed on the conductor end 50, so that the threaded rod 66 is guided along the slit 64 in the direction of the stop 70. In this way, the helical spring 60 is compressed between the

sleeves

58, 59, so that the resulting spring force causes a tensioning of the conductor end 50 between the first conductive element 16 and the contact plate 56 of the clamping element 12.

The respective

toggle lever mechanism

26,30 forms a dead-center movement mechanism which facilitates a self-locking hold in the closed state, irrespective of whether a conductor is mounted or not. The

respective actuating element

28, 32 must therefore be pivoted from the closed state (see fig. 3 or 8) by several degrees about the respective pivot axis in order to overcome the dead point against the spring force. As long as the dead point from the closed state is not overcome, the

toggle mechanisms

26,30 spring-loaded back into the closed state.

Description of the reference numerals

2 spring terminal

4 first clamping position

6 second clamping position

8 first half shell

10 second half-shell

12 first clamping element

14 second clamping element

16 first conductive element

18 second conductive element

20 fixed point

22 fixed point

24 middle section

26 first toggle mechanism

28 first actuating element

30 second toggle mechanism

32 second actuating element

34 concave part

36 have a grooved face

38 contact surface

40 contact surface

42 opening

44 opening

46 oscillating shaft

48 first conductor

50 end of conductor

52 second conductor

54 conductor end

56 clamping plate

58 clamping sleeve

59 tensioning sleeve

60 helical spring

62 bolt connection

64 slit

66 screw

68 bolt

70 stop

72 stop

74 lever

76 linear guide part

78 screwdriver

H direction of elevation

h1 clamping height

h2 clamping height

Claims

1. A spring terminal for connecting the conductors,

-having a movable first clamping element (12),

-having a movable second clamping element (14) and

-having a first conductive element (16) for establishing an electrically conductive connection between conductors (48,52) to be connected,

-wherein a movable first clamping element (12) is provided for spring-elastically pressing the first conductor (48) against the first conductive element (16), and

-wherein a movable second clamping element (14) is provided for spring-elastically pressing the second conductor (52) against the first conductive element (16),

it is characterized in that the preparation method is characterized in that,

-a second conductive element (18) for establishing a further conductive connection between the conductors (48,52) to be connected,

-wherein the second conductive element (18) is fixed to the movable first clamping element (12) and the movable second clamping element (14), the second conductive element (18) being a flexible conductor (18).

2. The spring terminal according to claim 1,

it is characterized in that the preparation method is characterized in that,

the flexible conductor is a conductive tape.

3. The spring terminal according to claim 1,

it is characterized in that the preparation method is characterized in that,

-the second electrically conductive element (18) is deformable and/or movable as a result of a relative movement of the first clamping element (12) with respect to the second clamping element (14) and/or as a result of a relative movement of the second clamping element (14) with respect to the first clamping element (12).

4. The spring terminal according to claim 1,

it is characterized in that the preparation method is characterized in that,

-the second electrically conductive element (18) is expandable and compressible due to a relative movement of the first clamping element (12) with respect to the second clamping element (14) and/or due to a relative movement of the second clamping element (14) with respect to the first clamping element (12).

5. The spring terminal according to claim 1,

it is characterized in that the preparation method is characterized in that,

-the second conductive element (18) is fixed to a first fixing point (20) of the first clamping element (12),

-the second conductive element (18) is fixed to a second fixing point (22) of the second clamping element, and

-the developed length of the second conductive element (18) is greater than or equal to the maximum distance (a) between the first fixation point (20) and the second fixation point (22).

6. The spring terminal according to claim 1,

it is characterized in that the preparation method is characterized in that,

-the first clamping element (12) is coupled with a tensioning spring (60) and is arranged for adjusting a clamping height (h1) defined between the first conductive element (16) and the first clamping element (12),

and/or

-the second clamping element (14) is coupled with a tensioning spring and is arranged for adjusting a clamping height (h2) defined between the first conductive element (16) and the second clamping element (14).

7. The spring terminal according to claim 1,

it is characterized in that the preparation method is characterized in that,

-the first clamping element (12) is movable along a linear guide (76) with a substantially linear lifting movement,

and/or

-the second clamping element (14) is movable along a linear guide with a substantially linear lifting movement.

8. The spring terminal according to claim 1,

it is characterized in that the preparation method is characterized in that,

the first clamping element (12) is part of a first toggle lever mechanism (26), wherein a pivoting movement of the first actuating element (28) is converted into a movement and/or tensioning of the first clamping element (12),

and/or

The second clamping element (14) is part of a second toggle lever mechanism (30), wherein pivoting of the second actuating element (32) is converted into a movement and/or tensioning of the second clamping element (14).

9. The spring terminal according to claim 8,

it is characterized in that the preparation method is characterized in that,

-the first and/or second toggle lever mechanism (26,30) constitutes a dead-center movement mechanism which causes the respective clamping element to stay in a self-locking, spring-loaded closed state.

10. The spring terminal according to claim 1,

it is characterized in that the preparation method is characterized in that,

-the first conductive element (16) is fixed to the housing (8,10) of the sprung terminal (2), wherein the first conductive element (16) forms a stop for clamping and fixing the conductor (48,52) by means of the clamping element (12, 14).

11. The spring terminal according to claim 1,

it is characterized in that the preparation method is characterized in that,

the first conductive element (16) has a recess (34) for placing the first and second conductors (48,52),

and/or

-the first electrically conductive element (16) has a grooved bearing surface (36).