EP2956994A1

EP2956994A1 - Spring-loaded connection terminal and conductor connection terminal

Info

Publication number: EP2956994A1
Application number: EP14704144.6A
Authority: EP
Inventors: Henry Stolze
Original assignee: Wago Verwaltungs GmbH
Current assignee: Wago Verwaltungs GmbH
Priority date: 2013-02-13
Filing date: 2014-02-12
Publication date: 2015-12-23
Anticipated expiration: 2034-02-12
Also published as: WO2014124962A1; EP3460919B1; US9478874B2; KR20150119856A; KR102149849B1; US20150372401A1; CN104995800A; PL2956994T3; EP2956994B1; DE102013101411B4; RU2652780C2; DE202014011262U1; JP6396334B2; EP3460919A1; EP3836306A1; CN109524802A; DE102013101411A1; CN104995800B; CN109524802B; RU2015138698A

Abstract

The invention relates to a spring-loaded connection terminal (1) with at least one clamping spring (2) which is bent in the shape of a loop and with a busbar (9). The clamping spring (2) has a contact limb (6) which rests against the busbar (9), a spring bow (5) which adjoins the contact limb (6), and a clamping limb (3) which adjoins the spring bow (5) and a free clamping end (4) of which points in the direction of the busbar (9). The contact limb (6) has at least one recess (12).

Description

Spring terminal connection and conductor terminal

The invention relates to a spring terminal connection with at least one loop-shaped clamping spring and a busbar, wherein the clamping spring has a voltage applied to the busbar support leg, an adjoining the plant leg spring bow and a subsequent to the spring bow and pointing with a free terminal end in the direction of busbar clamping leg ,

The invention further relates to a conductor terminal with an insulating material.

Such spring clamp connections are used to clamp electrical conductors e.g. used in terminal blocks, terminal blocks, PCB connectors, device connectors or the like.

DE 10 2004 045 026 B3 discloses an electrical connection or connection terminal with a loop-shaped clamping spring, which has a U-shaped bent plant leg, a subsequent thereto spring bow and a subsequent to the spring bow clamping leg. The plant leg has a recess in the free end region, through which a bus bar piece is guided in order to rest on a holder section punched free from the recess and a transverse edge bounding the recess. The free terminal end of the clamping leg points in the direction of busbar and forms together with the busbar a terminal point for an electrical conductor to be connected.

WO 2012/000639 A1 shows a connection terminal with a loop-shaped clamping spring, which has laterally projecting actuating tabs on the free clamping end of the clamping leg. A linearly displaceable actuating pushbutton cooperates with the actuating tabs to a through to open the clamping leg and the clamping rail formed a busbar and / or removal of an electrical conductor.

From DE 10 2005 048 972 A1 it is known to taper the clamping leg of a loop-shaped clamping spring, starting from the spring bow, and then widening again towards the free end of the clamping. The plant leg is also narrower over a substantial length adjacent to the busbar as in the adjoining the spring bow section.

DE 75 37 982 U1 discloses a spring-force clamping connection with a loop-shaped bent clamping spring and a busbar. This busbar is guided in the transition to the spring bow by a recess of the contact leg or the spring bow. Also, the free terminal end of the clamping leg has a central recess from which a material tab is bent out to form a free clamping edge for clamping an electrical conductor.

Based on this, it is an object of the present invention to provide an improved spring terminal and an improved conductor terminal, which allows the insulating material relieving installation in the insulating material.

The object is achieved by the spring force terminal connection with the features of claim 1 and the conductor terminal with the features of claim 10. Advantageous embodiments are described in the subclaims.

By means of the at least one indentation, a narrower web is created which is narrower than the adjoining section of the abutment leg. Such a bridge forms a flexible hinge or hinge. One on over the clamping leg and the spring bow on the Klemmfe- the acting force is intercepted via the flexible joint, ie the web, such that the clamping spring optimally deforms without exerting excessive forces on a subsequent insulating material housing so that the force is dissipated to the adjoining abutment leg and to the busbar arranged thereon. Thus, the power connection of the clamping spring is reduced to a Isolierstoffgehäuse. With the help of at least one indentation in the plant leg thus Freischnitte for relieving the power of the insulating material housing are provided.

By providing at least one indent, i. a recess of limited length at the edge region of an abutment leg to form a bay is further achieved that a clearance in the plant leg for receiving portions of the spring force clamping terminal surrounding insulating housing or possibly also portions of an actuating element which is installed in the insulating material is created , if the spring-loaded terminal is intended to be installed in the insulating housing to form a conductor terminal.

Under indentation in the context of the present invention is thus understood a relatively short recess at the edge region of the abutment leg, which leads in the region of the indentation to a web with reduced compared to the adjoining sections of the abutment leg width, wherein the web in relation to the rest Sections of the plant leg has a shorter length.

It is particularly advantageous if a pair of opposing indentations are present on both sides of a contact leg and the contact leg in the region of the indentations has a web with reduced width compared to the sections of the contact leg directed towards the spring bow and the busbar. This is a bilateral by indentations relative to the side edges of the investment Schen- kels inwardly offset bridge created. This has the advantage that portions of the insulating housing can dive into a space which is bounded by the adjoining the web side edges of the plant limb.

The at least one indentation is preferably arranged in a space above the busbar. Thus, opposite the terminal point for connecting an electrical conductor, a hinge is provided between the portion of the abutment leg connected to the busbar and the portion of the abutment leg connected to the clamping leg via the spring bow, which leads to a force relief of the insulating housing surrounding the spring force terminal connection.

The at least one indentation is preferably located in a space above the free terminal end of the clamping leg in the resting state of the clamping spring, by the clamping leg rests on the busbar. The created by the indentations with the web reduced width hinge of the clamping spring thus acts with respect to the free terminal end of the clamping leg and an insulating housing surrounding the clamping spring in an optimal position.

It when the busbar is tiltably mounted on the plant leg is particularly advantageous. Thus, a resilient, adapting to the conductor run-on slope of the bus bar is provided, which can be advantageously reduced by the force acting on the insulating material force when inserting and clamping an electrical conductor to the Federkraftklemmanschluss. The tiltable mounting of the busbar to the plant leg is in principle independent of the above-described specific embodiment of the spring terminal connection with a recess and can achieve its advantageous effect even with clamping springs without such indentation. In one ner loop-shaped curved spring with a busbar, wherein the clamping spring has a voltage applied to the busbar support leg, an adjoining the plant leg spring bow and a subsequent to the spring bow and pointing with a free terminal end in the direction of busbar clamping leg, it is thus advantageous that the busbar is tiltably mounted on the plant leg.

It is particularly advantageous if the bearing limb has bearing openings or bearing hollows at its free end section. The busbar then has projecting bearing lugs, which dive to the tiltable mounting of the busbar on the plant leg in each case in an associated bearing opening or storage trough.

The busbar is thus immovably mounted by welding or riveting on the plant leg, but hung in the plant leg and stored tilting on the plant leg. By locking the busbar to the plant leg by means of bearing lugs the busbar is fixed in position relative to the at least one clamping spring.

The bearing openings or storage wells can either be surrounded on all sides by free end portions of the support leg. It is also conceivable that bearing openings are formed on the free end portion of the abutment leg as indentations on the edge regions of the free end portion. Such indentations are then only partially surrounded by the free end portion of the abutment leg and opened over part of the circumference to the outside.

It is particularly advantageous if a plurality of clamping springs are lined up next to one another at a distance from one another and a common busbar extending in the running-up direction of the clamping springs is arranged. ben. In this way, for example, a terminal box can be realized, in which electrical conductors which are connected to the juxtaposed clamping springs can be electrically connected to one another via the busbar.

The plurality of clamping springs preferably has a common, in the direction of arrangement of the clamping springs extending free end portion of the plant leg. The clamping springs are integral, ie integrally formed with the free end region. This ensures that the clamping springs are arranged stable in position over the common free end portion to each other and a good surface support for the busbar is provided.

The invention will be explained in more detail with reference to an embodiment with the accompanying drawings. Show it:

Figure 1 - Perspective view of a first embodiment of a

Spring terminal connection with three juxtaposed clamping springs and a common busbar;

Figure 2 - Perspective view of the clamping springs of the spring terminal connection of Figure 1;

Figure 3 - side view of the spring terminal connection of Figure 1;

Figure 4 - Perspective view of the spring terminal connection of Figure 1 and 3 from below;

FIG. 5 shows a plan view of the spring-force clamping connection from FIG. 1;

FIG. 6 shows a top view of the spring-force clamping connection from FIG. 1 from below;

Figure 7 - Perspective view of a second embodiment of a spring clamp terminal;

FIG. 8 is a side view of the spring force terminal connection of FIG. 7;

Figure 9 - Perspective view of a clamping spring of the spring terminal connection of Figure 7;

FIG. 10 shows a plan view of the spring-force clamping connection from FIG. 7;

Figure 1 1 - view of the spring terminal connection of Figure 7 from below;

Figure 12 - Perspective view of a conductor terminal with

Actuating lever;

Figure 13 - top view of the conductor terminal of Figure 12;

FIG. 14 shows a side sectional view through the conductor connection terminal

Figures 12 and 13 in section B-B with the operating lever open;

Figure 15 - side sectional view through the conductor terminal from

Figures 12 and 13 in section AA with the operating lever closed; Figure 16 - Perspective view of a second embodiment of a conductor terminal;

FIG. 17 is a top view of the conductor connection terminal from FIG. 16;

FIG. 18 shows a side sectional view through the conductor connection terminal

Figures 16 and 17 in section B-B with the operating lever open;

Figure 19 - side sectional view through the conductor terminal of

Figures 16 and 17 in section A-A with closed actuating lever.

FIG. 1 shows a perspective view of a first embodiment of a spring-force clamping connection 1, which has three clamping springs 2 arranged next to one another in a loop-shaped manner. each

Clamping spring 2 has a clamping leg 3 with a free terminal end 4. The clamping leg 3 merges into a spring bow 5, to which a plant leg 6 connects. The plant leg 6 is bent to form a conductor receiving pocket 7 for receiving a stripped free end of a voltage applied to the spring terminal connection electrical conductor U-shaped. At the free end of the abutment leg 6, the free end portion 8 of the abutment leg 6 forms a support for a common busbar 9. The busbar 9 extends in the direction of assembly A juxtaposed clamping springs 2 and transversely to the Leiterereinsteckrichtung L.

It is clear that the busbar 9 is supported on the free end portion 8 of the plant leg 6. It can also be seen that the abutment limbs 6 are formed in one piece, integrally with the free end region 8, and the juxtaposed clamping springs 2 arranged next to one another are thus connected to one another via the common free end section 8.

In the rest position shown, the free terminal end 4 of the clamping Leg 3 on the busbar 9 on. When pinching an electrical conductor between the free terminal end 4 and the busbar 9 is a nip between a clamping edge 10 at the free terminal end 4 and a contact edge 1 1 created on the busbar 9 to electrically contact the electrical conductor to the busbar 9. The free terminal end 4 is bent relative to the clamping leg 3 in the direction of the busbar 9.

It is clear that the bearing limbs 6 in a section above the busbar 9 and the free terminal end 4 in the resting state each have two opposing indentations 12. As a result, a web 13 is created, which has a reduced width compared to the adjacent sections of the abutment leg 6. It is also clear that the web 13 and the indentations 12 has a very small compared to the adjoining length of the contact leg 6 to the busbar 9 length. The indentation extends over a length which is less than a quarter of the entire length of the abutment leg 6.

By the indentations 12 and realized here webs 13 is a kind of hinge between the adjoining the web 13 spring bow 5 with the clamping leg 3 and adjoining the web 13 remaining portion of the abutment leg 6 to the busbar 9 is created. A force exerted upon actuation of the clamping leg 3, for example by an actuating lever, an actuating slide or a screwdriver force and a force applied to the plant leg 6 when clamping an electrical conductor is by the web 13 by slight deformation (bending) of the web 13 while reducing the on collected adjacent insulating material applied force and derived to the busbar 9 toward. With the help of the indentation 12, a flexible portion of the abutment leg 6 adjoining the spring bow 5 is thus created, with which the force influence can be reduced to an insulating material.

For further stabilization of the insulating housing is additionally conceivable that portions of the insulating material immersed in the recesses 12 and thus this space of the recesses 12 is used to reinforce the insulating housing.

FIG. 2 shows a perspective view of the clamping springs 2 of the spring-force terminal connection 1 from FIG. It is clear that the U-shaped bent support leg 6 are integrally connected to each other via a common free end portion 8, which extends in the mounting direction A and transverse to the conductor insertion direction L on the three clamping springs 2 away. Furthermore, it becomes clear that the free end section 8 has at least one bearing opening 14 for receiving a bearing nose of the busbar 9. In this way, the busbar 9 can be supported at the free end portion 8 and fixed in position. The busbar 9 is not as strong as connected to the free end portion 8, that this can not perform a tilting movement. The spring-cage connection 1 is thus flexibly adapted to the respectively clamped electrical conductor.

FIG. 3 shows a side view of the spring-force clamping connection 1 from FIG. It is clear that the busbar 9 is supported on the free end portion 8 of the plant leg 6. It can also be seen that a clamping edge 10 of the free terminal end 4 of the clamping leg 3 rests on the busbar 9 in the idle state. The web 13 formed by the indentations 12 lies in a viewing direction transverse to the conductor insertion direction L above the busbar 9 and the free terminal end 4. With the help of the webs 12, a flexible joint between the formed by the spring bow 5 and the clamping legs 3 and section the between the busbar 9 and the adjoining portion of the plant leg. 6 created. The clamping force of the free terminal end 4 on an electrical conductor is applied substantially by the spring bow 5. The flexible joint formed by the webs 13 means that further deformation forces are absorbed flexibly and are not transmitted to a large extent on the insulating material.

FIG. 4 shows a perspective view of the spring-force clamping connection 1 from FIG. 1 from below. It becomes clear that the free end section 8 of the bearing limb 6 has bearing openings 14, into which projecting bearing lugs 15 protrude from the underside of the busbar 9. The busbar 9 is thus not so firmly connected to the free end portion 8, that the busbar 9 can not tilt with respect to the free end portion 8. However, it is fixed in position in the direction of assembly A and transverse by means of the bearing lugs 15 and the bearing opening 14. In contrast to an attachment of the busbar 9 with the free end portion 8 by riveting, welding, screwing or the like, a tilting movement of the busbar 9 is possible, so that the position of the busbar 9 can sufficiently adapt to the position of a clamped electrical conductor.

FIG. 5 shows a plan view of the spring-force clamping connection from FIG. It is clear that 5 webs 13 are formed by the opposing indentations 12 adjacent to the edge regions of the abutment leg 6 in the transition to the spring bow. It is clear that the recesses 12 and webs 13 are arranged in the plan view above the busbar 9 and the free terminal end 4 of the clamping springs 2 in the rest position.

It can also be seen that the webs 13 have a smaller width than the width of the adjoining portion of the abutment leg 6 and of the spring bow 5. On the busbar depressions are recognizable, which belong to the downwardly projecting bearing lugs 15. These bearing lugs 15 are pressed down from the material of the busbar 9 during the forming process.

It is also clear that the busbar 9 have a sloping ramp 16 seen in the conductor insertion direction L in front of the free terminal end 4 of the clamping spring 2 and the contact edge 1 1. As a result, the insertion of an electrical conductor to the clamping point is facilitated.

FIG. 6 shows a view of the spring-force clamping connection 1 from FIG. 1 from below. The outstanding from the bottom of the busbar 9 bearing lugs 15 dive into the bearing opening 14 of the free end portion 8 of the plant leg 6 a.

FIG. 7 shows a second embodiment of a spring-force clamping connection 1 in the perspective view. Again, the abutment legs 6 by opposing indentations 12 in a region adjacent to the spring bow 5 region webs 13. In that regard, reference may be made to the above-described first embodiment of the spring terminal connection 1.

The embodiments differ on the one hand in the mounting of the busbar 9 on the abutment legs 6 and on the other hand in the embodiment of the clamping leg. 3

It is clear that are embossed from the top of the busbar 9 to the bottom inside and formed by the level of the underside of the busbar 9 projecting bearing lugs 15 on the busbar 9. Furthermore, it is clear that the busbar seen in the conductor insertion direction L before the contact point of the free terminal end 4 on the Erstre- ckungslänge the busbar 9 has a U-shaped bend 17. The extending in the direction of assembly A top of the U-shaped bend 17 forms a contact edge 1 1 for an electrical conductor to be clamped. In addition, the free end 18 of the free end portion 8 of the abutment leg 6 is bent upward in the direction of the busbar 9 out, so that the busbar is fixed in position in conjunction with the immersed in the bearing openings 14 bearing lugs 15.

Furthermore, it can be seen that 3 actuating tabs 19 protrude at the edge regions of the clamping leg. The actuating tabs 19 are slightly bent upward in the direction of the plant leg 6 and form a Betätigungsauflager on which an actuator, such as a pivot lever, an actuating force for opening a nip by lifting the clamping leg 3 in the direction overlying portion of the abutment leg 6 can apply. In the area of the actuating lugs 19, the free terminal end 4 is bent relative to the clamping leg 3 in the direction of busbar 9 out.

In the illustrated embodiment, two actuating lugs 19 for a clamping spring 2 are provided at the two opposite edge regions of the clamping leg 3. It is also conceivable that only one actuating tab 19 per clamping spring 2 is provided.

FIG. 8 shows a side view of the spring-force clamping connection from FIG. 7. This is again clear that the busbar rests through the U-shaped bend 17 in the upwardly in the direction of busbar 9 bent free end of the abutment leg and through the underlying bearing lugs 15, which dive into the bearing openings 14 of the portion of the plant leg 6, in addition be fixed in position.

FIG. 9 shows a perspective view of the clamping spring 2 for the spring force clamping connection from FIGS. 7 and 8. It becomes clear that now the individual juxtaposed clamping springs 2 are separated from each other. The bearing openings 14 are formed in this embodiment by indentations on the edge region of the abutment leg 6 in the free end portion and thus not fully circumferentially closed. It is also clear that the free end 18 of the free end portion 8 is bent from the plane of the free end portion 8 upwards in the direction of web 13 and in the direction of the approximately overlying free terminal end 4 of the clamping leg. It can also be seen that the actuating tabs 19 are formed on both sides on the edge regions of the clamping leg 3 by free cutting or free punching of the clamping end 4 and folding down of the same in the direction of the free end section 8.

FIG. 10 shows a top view of the spring-force clamping connection 1 from FIG. It is clear that the actuating tabs 19 are in plan view in the space below the webs 13 and the indentations 12 forming these. The free terminal end 4 of the clamping leg 3, the actuating tabs 19 and the indentations 12 to form the webs 13 are thus approximately in alignment on top of each other.

FIG. 11 shows a view of the spring-force terminal connection 1 from FIG. 7 from below onto the busbar 9. It is clear that the projecting bearing lugs 15 in the bearing openings formed from indentations 14 at the free end portion 8 of the plant leg 6 dive.

FIG. 12 shows a perspective view of a conductor connection terminal 20. The conductor terminal 20 has an insulating housing 21, in which one of the above-described spring terminal connections 1 with three juxtaposed clamping springs 2 is installed (not visible). For actuating the spring force terminal connections 1, ie for opening the clamping points formed thereby for connecting an electrical connection see ladder actuating lever 22 are pivotally received in the insulating housing 21. Furthermore, the insulating housing has front conductor insertion openings 23 for insertion of electrical conductors to an associated terminal point of a clamping spring 2. These conductor insertion openings 23 extend in conductor insertion opening L in the interior of the insulating housing 21 inside.

Furthermore, it can be seen that above the middle conductor insertion opening 23, a test opening 24 extending in the conductor insertion direction L is present. The test opening 24 is open on the front side and to the adjacent spring terminal connection 1 in the interior, so that it can be determined with the aid of an imported test tool whether a voltage potential is applied to the spring terminal connection 1. Alternatively or additionally, it is also conceivable that in the rear, the conductor insertion openings 23 opposite region at the top or back a test opening 24 'is present.

FIG. 13 shows a top view of the conductor connection terminal 20 with the sectional lines A-A and B-B. The upper, left in Figure 12, the actuating lever is in the open position and is pivoted away from the insulating material. Thus, the nip of the associated clamping spring is opened. The other two actuating lever 22 are folded down in the closed position in the direction of the insulating housing 21, so that the clamping point is closed and the associated clamping spring on the free clamping section 4 a clamping force on the underlying busbar and a possibly intermediate electrical conductor (not shown) exerts.

FIG. 14 shows a side sectional view in section BB through the conductor connection terminal 21 from FIGS. 12 and 13. It becomes clear that a spring-force clamping connection 1 described above is installed in the interior of the insulating housing 21. The insulating material housing It can be seen that the pivotally mounted in the insulating housing 21 operating lever 22 in the interior between the busbar 9 and the web 13 a pivot bearing pin 27 with a V-shaped cutout 28 from about 80 to 120 ° (in the illustrated embodiment about 1 10 °) has. With the V-shaped cutout 28, an actuating contour 29 is created, which acts on an associated actuating tab 19 to displace the clamping leg 3 to open the nip in the direction of overlying web 13.

FIG. 15 shows a side sectional view of the conductor connection terminal 20 when the actuating lever 22 is closed in section A-A in FIG. It becomes clear that the nip is now closed. This is achieved in that the pivot pin 27 is rotated by approximately 90 °. In this case, the actuating tab 19 is released and the clamping leg 3 can move freely under the force applied by the spring bow 5 spring force and exert a clamping force on the busbar and possibly between the busbar and free terminal end 4 arranged electrical conductor.

By the web 13 is a kind of spring hinge or hinge is formed, so that a force acting on the clamping leg 3 and the spring bow force is flexibly absorbed by the clamping spring 2 itself, without transmitting significant force to the insulating material.

In comparison with FIG. 15, it is clear from FIG. 14 that the upper section of the abutment leg 6 is displaced upwards in the region of the web 13 in the open position. This is achieved by the flexible web 13, which is more elastic than the adjacent portion of the plant leg 6 by its reduced width. In the illustrated section AA is also the front test opening 24 above the middle conductor insertion opening 23 and a top accessible from the back test opening 24 'recognizable.

FIG. 16 shows a second embodiment of a conductor connection terminal 20. Here, reference may firstly be made to the description of the first embodiment. In contrast to the first embodiment, no front test opening, but only a rear test opening 24 'is present. Also, the operating lever 22 and the intermediate insulating material 21 are slightly different.

FIG. 17 shows a plan view of the second embodiment of the conductor connection terminal 20 from FIG. 16 with the sectional lines A-A and B-B.

FIG. 18 shows the conductor connection terminal 20 from FIGS. 16 and 17 in section B-B of the opened actuating lever 22 with the clamping point open. Again, a part-circular pivot pin 27 is disposed at the level above the busbar 9 and below the web 13 and pivotally mounted in the insulating housing. The busbar 9 is designed with a U-shaped bend 17 comparable to the second embodiment of a spring terminal connection 1 according to Figures 7 to 1 1. The trained on the pivot pin 27 actuating contour 29 is slightly different than in the first embodiment according to Figures 14 and 15 executed, but functionally comparable. In essence, therefore, reference may be made to the embodiment of the first embodiment.

FIG. 19 shows a side sectional view of the conductor connection terminal 20 from FIGS. 16 and 17 in section AA when the actuating lever 22 is closed. The nip is closed by the free terminal end 4 of the clamping leg 3 in the direction of the busbar 9 is pressed down by the spring force of the clamping spring 5. Without inserted electrical conductor as shown, the free terminal end 4 then rests on the busbar.

Claims

claims:

1 . Spring terminal connection (1) with at least one loop-shaped curved spring (2) and with a busbar (9), wherein the clamping spring (2) on the busbar (9) adjacent bearing arm (6), a to the plant leg (6) subsequent spring bow (5) and a clamping leg (3) which adjoins the spring bow (5) and has a free clamping end (4) in the direction of the busbar (9), characterized in that the bearing limb (6) forms a conductor receiving pocket (7). for receiving a stripped free end of an electrical conductor to be clamped to the spring force terminal connection (1) is bent in a U-shape and in which the busbar (9) opposite section has at least one recess (12) to form a flexible joint.

2. Spring terminal connection (1) according to claim 1, characterized in that on both sides of a support leg (6) a pair of opposing indentations (12) are present and the plant leg (6) in the region of the indentations (12) has a web (13) with opposite the sections of the abutment leg (6) of reduced width, which has been raised to the spring bow (5) and to the busbar (9).

3. spring terminal connection (1) according to one of the preceding claims, characterized in that the busbar (9) is tiltably mounted on the plant leg (6).

4. spring terminal connection (1) according to any one of the preceding claims, characterized in that the bearing limb (6) at its free end portion (8) bearing openings (14) or bearing troughs and the busbar (9) projecting bearing lugs (15), where at the bearing lugs (15) in each case in an associated bearing opening (14) or dip tray dive.

5. spring terminal connection (1) according to claim 4, characterized in that bearing openings (14) at the free end portion (8) of the abutment leg (6) are formed as indentations on the edge regions of the free end portion (8).

6. spring terminal connection (1) according to one of the preceding claims, characterized in that a plurality of clamping springs (2) are lined up next to each other at a distance and have a common, in the direction of assembly (A) of the clamping springs (2) extending busbar (9) ,

7. spring terminal connection (1) according to claim 6, characterized in that the plurality of clamping springs (2) have a common, in the direction of arrangement (A) of the clamping springs (2) extending free end portion (8) of the plant leg (6), wherein the Clamping springs (2) are formed integrally with the free end portion (8).

8. conductor terminal (20) having an insulating housing (21), characterized by at least one spring terminal connection (1) according to one of the preceding claims in the insulating housing (21).

9. spring terminal connection (1) according to claim 8, characterized in that the plurality of clamping springs (2) have a common, in the direction of assembly (A) of the clamping springs (2) extending free end portion (8) of the plant leg (6), wherein the Clamping springs (2) are formed integrally with the free end portion (8).

10. Conductor terminal (20) having an insulating housing (21), characterized by at least one spring terminal connection (1) according to one of the preceding claims in the insulating housing (21).