EP1353407A1 - Wire connecting device - Google Patents

Abstract

The device has a clamp spring and preferably a bus bar in a metal cage with an insertion opening for the conductor. The spring has two long legs joined by a bend of which one is a clamping leg. The first leg is attached to and directly in contact with the inside of the first cage side wall, the bend region is in contact with at least one bridge formed on the cage and a protrusion on the inside of a cage side wall forms a stop for the leg. The device has a clamp spring (3) and preferably a bus bar in a metal cage (5) of rectangular cross-section with at least three, preferably four side walls (5a-d) and open on at least one axial end forming an insertion opening (14) for the conductor. The spring has two long legs (3a,3b) joined by a bend of which one is a clamping leg. The first leg is attached to the inside of the first side wall of the cage and directly in contact with the side wall in sections, the bend region is in contact with at least one bridge formed on the cage and a protrusion is provided on the inside of a cage side wall as a stop for the leg.

Description

The invention relates to a connection device for conductors according to the preamble of claim 1.

Connection devices for conductors with clamping springs are available in many different variants known and have proven themselves. Examples are shown in DE 197 376 739A1, DE 42 31 244 A1, DE 35 20 826 A1, DE 24 40 825 A1, DE 295 00614 A1, DE 81 36 054 U1, DE 69 41 200 U1 and WO 02/13319 A1.

Against the background of this prior art, there is a need for a particular easy to handle connection device with clamping spring, the very is inexpensive to produce and versatile, with a minimum possible Need to adapt the equipment receiving the terminal device as terminal blocks or PCBs to be necessary.

The solution to this problem is the object of the invention.

The invention solves this problem by the subject matter of claim 1.

Thereafter, it is provided that the first longitudinal leg of the clamping spring on the inside the first side wall of the metal cage is fixed and sections directly on the inside of the side wall, the bending area of the clamping spring at least one ridge molded directly to the metal cage rests, and a Projection on the inside of one of the side walls of the metal cage as a boundary is provided for the deflection of the clamping leg.

With the invention is a particularly inexpensive and consisting of few parts Connecting device realized with a clamping spring, which exclusively by means of directly formed on the metal cage functional elements in the metal cage ausziehsicher is fixed, with all forces of actuation of the metal cage taken as a whole or as a preassembled unit in a terminal block housing can be inserted or mounted on a printed circuit board. To this Way is only necessary, for example, in a terminal one of Provide outer geometry adapted recess, but there are no webs or the like on the terminal housing or a conductor bar required, which special functions - e.g. a pull-out of the spring or the function of a stop - take over. These functions are much more of the metal cage accepted.

According to another particularly preferred and independently viewable Further development is provided that the clamping leg at its free end Having centering, which preferably at least in the un-connected state each in correspondingly shaped corresponding recesses in the Busbar intervene. Head of various diameters and in particular Even several conductors can easily due to the centering in the Connection device are introduced, with always a good contact between the at least one conductor and the busbar is ensured. The engagement the centering points in the recesses also allows the wiring with conductors with a particularly small diameter.

It is according to a variant also conceivable that the clamping cage of a well-conducting Metal as copper exists and conduction function takes over or that the Busbar and the clamping cage made in one piece from conductive material are.

Further advantageous embodiments can be found in the remaining subclaims.

Figur 1a - 10

verschiedene Ansichten und Betriebszustände sowie Einsatzvarianten eines ersten Ausführungsbeispiels der Erfindung;

Figur 2a - 2f

verschiedene Ansichten, Betriebszustände, Einsatzvarianten und Varianten eines zweiten Ausführungsbeispiels der Erfindung;

Figur 3 bis 18

verschiedene perspektivische Darstellungen weiterer Ausführungsbeispiele der Erfindung;

Figur 19 bis 21

verschiedene perspektivische Darstellungen einer Reihung von Anschlussvorrichtungen;

Figur 22

zwei erfindungsgemäße Anschlussvorrichtungen in einer schematisch dargestellten Reihenklemme; und

Figur 23

zwei erfindungsgemäße Anschlussvorrichtungen in einer weiteren schematisch dargestellten Reihenklemme;

Fig. 27- 29

weitere Ausführungsbeispiele von Anschlussvorrichtungen.

The invention will be described in more detail by means of exemplary embodiments with reference to the drawing. It shows:

FIGS. 1a-10

various views and operating conditions and use variants of a first embodiment of the invention;

FIGS. 2a-2f

various views, operating states, insert variants and variants of a second embodiment of the invention;

FIGS. 3 to 18

various perspective views of further embodiments of the invention;

FIGS. 19 to 21

various perspective views of an array of connection devices;

FIG. 22

two connection devices according to the invention in a schematically illustrated terminal block; and

FIG. 23

two connection devices according to the invention in a further schematically illustrated terminal block;

Fig. 27-29

Further embodiments of connection devices.

FIG. 1a shows a connecting device 1 for a stripped-down end Ladder 2 (see, for example, Fig. 1b), which a clamping spring 3 and a busbar 4, which are arranged in a metal cage 5.

The metal cage 5 has a rectangular cross-sectional shape with four side walls 5a - 5d and is open at its two axial ends, wherein one of the open Pages - in Fig. 1a, the upper open side - as an insertion opening 14 for a Head 2 and an operating tool or the like is used.

The first and third side walls 5a and 5c facing each other and each other are aligned parallel, are narrower than the two other parallel to each other second and fourth side walls 5b and 5d formed.

In Fig. 1b, the connection device are for better understanding without the second and here front side wall 5b shown.

As can be seen, has the formed of a rectangular sheet metal strip clamping spring 3 two longitudinal legs 3a and 3b, which at an acute angle to each other aligned and connected to each other via a bending portion 3c.

The first longitudinal leg 3a of the clamping spring 3 is on the inside of the first, shorter Side wall 5 a of the metal cage 5 is fixed and is partially directly to the inside of the side wall 5a. Its dimensions correspond to the dimensions the inside of the first side wall 5a.

The busbar 4 is L-shaped in side view and is located with her Contact leg 4a on the inside of the third side wall 5c, which of the first side wall for fixing the clamping spring 3 is opposite. The second Leg 4b overlaps the axial opening facing away from the insertion opening 14 the metal cage 5 and thus forms a boundary or a stop for the Ladder 2 during insertion of the same in the connection device.

The first longitudinal leg 3a has a recess 6, in which an inward protruding projection 7 of the first side wall 1a engages. The recess is here rectangular and is located to the insertion side for the conductor 2 side facing away the side wall 1a out. The projection 7 also has a rectangular shape here. He is formed by a U-shaped punched in the first side wall 1a is punched, whereupon the still on one side in a bending area 8 metal tabs connected to the first side wall 1a bent inwardly becomes. In this case, the bending region 8 is the projection 7 to the insertion side of the conductor out. In this way it is possible, during assembly, the clamping spring 3 in the Metal cage 5 from the insertion side for the ladder ago introduce, wherein the recess 6 slips over the projection 7 and there behind an undercut 9 forming edge is latched. The clamping spring 3 is thus easy Way against unintentional release from the metal cage 5 when switching off secured the connection device 1.

To the second and fourth side wall 5d of the metal cage 5 is at the insertion side each formed a web 10 a, 10 b, whose length is e.g. half the width of the Clamping spring 3 corresponds and perpendicular to the respective sidewall planes are bent inwards. These webs 10 serve in a simple manner as a support for the bending region 3c of the clamping spring 3d.

The second longitudinal leg 3b extends obliquely to the insertion direction for the conductor into the metal cage and reaches here in the unconnected state up to the busbar 4 and is applied to this.

He is here doubly curved like a wave. When inserting the conductor is the second longitudinal leg 3b - also called clamping leg - in the insertion direction deflected downwards. His movement is limited in this direction by an inwardly facing projection 11 on the fourth side wall 5 d, which is still one-sided with the side wall in a bending region 12 connected and formed on three sides U-shaped punched cloth is formed.

The metal cage 5 is also formed as a bent part of a stamped sheet, which after punching into the shape of the cross-section rectangular metal cage 5 is bent, with the interface of the edges of the sheet metal strip here is in the region of the second side wall 5b and wherein the two edges over a castle-like compound 13 (tongue and groove) interlock.

Further projections or punched outs 36, 37 in the second and fourth side walls 5b and 5d in the corner areas to the first side wall 5a to that of the Insertion opening facing away edges of the side walls 5a, 5b press the Clamping spring 3 in the region of the longitudinal leg 3a against the first side wall 5a.

The protruding from the insertion opening 14 for the conductor 2 bent end of Busbar and the clamping leg 3b of the clamping spring 3 together a kind of funnel-shaped insertion area for the conductor 2, which is the insertion into the Connection device 1 facilitates.

A bulge 15 in the first longitudinal leg 3a of the clamping spring above the Recess 6 serves to optimize the voltage.

What is created is a substantially fully functional one Connecting device for conductors that can be used in a variety of ways, without being used at the place of use any major adjustments are needed. For example it is possible to use the terminal device in a terminal and essentially only one of the geometry of the connecting device adapted recess to provide for the insertion of the connecting device (see also the comments to Figs. 22 and 23). Special webs and the like, which e.g. as stop elements serve for any moving parts of the connection device are not required.

Fig. 1c shows an individual view of the busbar and the clamping spring 3 in the open State for wiring (but for the sake of clarity without a conductor). In this case, the clamping leg 3b bears against the projection 11. The busbar 4 can easily be mounted in the metal cage 5b e.g. in the open state of be inserted below.

Figure 1d shows how the terminal device after insertion of a conductor 2 behaves. As can be seen, the clamping leg 3b of the spring is located on the projection 11, so that a particularly defined clamping force is exerted on the conductor, which presses the conductor against the busbar 4.

FIG. 1e illustrates that there is sufficient space next to the conductor to use an actuating tool, in particular a screwdriver 16, the Clamping 3b to press to release the conductor 2 against the projection 11. When inserting the conductor such an operation is not necessarily per se necessary, but it is also possible, the here particularly suitable einrähtigen Conductor 2 or a fine-stranded conductor with crimped end sleeve simply insert by plugging into the terminal device 1.

Figure 1f illustrates the integration of the terminal device 1 in a terminal housing 17, which has a recess 18 and insertion openings 19, 20 for the screwdriver 16 or other operating tool and the conductor. 2 having. With the screwdriver, it is particularly possible, the clamping leg 4b practically and safely depress in the undulating area and the Open terminal point of the connection device 1. Due to the spring shape and the Design of the metal cage 5 and the screwdriver guide (opening 19) in the terminal obstruction of the conductor 2 is avoided by the screwdriver.

Figure 1g shows an alternative embodiment in which an actuating piece 21 rests on the wavy curved clamping leg 3b, which at its Top of a notch or a slot 22 for supporting the screwdriver has and on one side a locking lug 46 for failing against failure from the terminal housing.

As can be seen in Figure 1h, the actuating piece 21 in a corresponding shaped recess 19 'slidably guided and a particularly defined and allow reliable operation of the connection device.

As can be seen in FIG. 1i, it is also conceivable to use the busbar, for example directly to another busbar 44 to attach, in which case the busbar 4 is not L-shaped, that is, it does not have a second leg 4b on.

Figure 1j illustrates that a Prüfabgriff 24 at various points of Connecting device can be arranged, such. on an outside, for example, on the outside of the first side wall 5a.

FIG. 1 k, like FIG. 11, illustrates the insertion of an actuating piece 21 in FIG the opening 19 'of the terminal housing 17. The detent 46 secures the actuating piece against failure from terminal block.

FIG. 1m shows that the upper side of the actuating piece 21 is widened in this way may be that a marker region 38 for attaching a marker forms. In the terminal housing 17 is a corresponding recess 39 for Recording of the marker region 38 is formed.

Figure 1n illustrates the assembly and the insertion of the connecting device 1a with busbar 4 from the side in the simple design, essentially rectangular recess 18 of the terminal housing 17, where the connecting device 1 with a projection 45, directly from the outside of the metal cage. 5 is bent out, is securely locked in a recess of the terminal block, so that it is secured against a lateral failure.

FIG. 10 shows, in the upper section, the clamping spring 3 or contact spring together with the metal cage 5 and in the lower part of the L-shaped busbar 4 in a single representation.

The embodiment of Figure 2 largely corresponds to the embodiment Figure 1, but here is the second clamping leg 3b is not wavy in itself curved but just trained so that no support surface for the Screwdriver 16 is formed. The variant is still functional, if, according to the type of FIG. 2b, the insertion opening 19 for the screwdriver 16 is itself is tapered in the insertion, so that the insertion of the Screwdriver 16 is limited in the terminal housing 17.

For the realization of a defined state of tension according to the variants of 2c provided, the clamping spring in the region of the bend or in the bending region 3c thickened train. In Figure 2d, this effect is due to the bulge 15 reached in the first longitudinal leg and in Figure 2e by a taper 40 in Area of the first and second clamping leg respectively on both sides of the Clamping leg following the bending area 3b. In FIG. 2f, the defined Stress state by two drop-shaped hole-like openings 41 realized in the middle of the legs 2a and 2b.

FIG. 3 shows a variant in which the metal housing or the metal cage 5 from the insertion side 14 forth to the busbar 4 downwardly tapers one side (in the region of the side walls 5b and 5d). The cross section remains the same accordingly of the metal cage 5 rectangular. The cross section also tapers in the insertion direction out. Here a particularly compact connecting device is realized, but their structure otherwise corresponds to the embodiment of Figure 1.

In Figure 4 is even provided that the terminal housing tapers double-sided, i.e. the side walls 5b and 5d each have a trapezoidal shape, which again compared to Fig. 3 space-saving and compact.

According to FIG. 5a and b, the side opposite the insertion opening 14 is the side of FIG Connecting device 1 to the metal cage 5, to the clamping spring 3 and to the Busbar 4 each have another leg 5e, 4c and 3d formed, the successive are bent, wherein between the spring leg 3d and the busbar leg 4c of the busbar 4 a connection option for a Pin connector 25 is made. The leg 5e of the metal cage serves as a stop plug 25 is made. The leg 5e of the metal cage serves as a stop for Movement of the spring leg 3d.

Figures 6a and b illustrate that in a corresponding variant of a Busbar 4, which the insertion opening 14 opposite side of the Metal cage 5 does not close, the area between a bent end 26th the first longitudinal leg 3a and the first side wall 5a as a plug-in option is usable for a Prüfabgriff or for a cross connector 27.

Figure 7a illustrates that also between the bending region 3c and the first side wall 5a such a cross connector 27 or a test plug are inserted can.

FIG. 8 combines the variants of FIGS. 6 and 7 and permits the intervention of FIG Cross connectors 27 or test plugs both on the type of Fig. 6 and by type of Fig. 7.

Figure 9 illustrates that the embodiments of Figure 6 instead of for insertion a cross connector 27 also for insertion of another conductor 28th are usable.

Similarly, Figure 10 shows the insertion of a further conductor 28 between the bending region 3c of the clamping spring 3 and the first side wall 5a.

Figure 11 combines the variants of Figure 9 and Figure 10, i. they become leaders 28 both in the insertion direction between the bending portion 3c and the first side wall 1a as well as on the opposite side between the bent end 26 and the side wall 1a inserted.

Figure 12 illustrates that directly opposite to the insertion opening 14 Ends of the metal cage 5 soldering or Preßbeinchen 29 may be formed, in a circuit board 23 and openings 31 of the circuit board 23 can be used and can be soldered, pressed or riveted there. After Figure 12 are next to the solder legs still plug legs 30 formed with projections 43 which realize undercuts 32, which when inserting appropriate slots 33 on the circuit board 30 are latched. An overwrap 34 - FIG. 13 - may be via one or more these connection devices are plugged. This over-housing 34 can, for example consist of insulating material.

Figure 14 illustrates that the bus bar 4 also integral with the metal cage may be formed or may form part of the metal cage, if this consists of a highly conductive material.

FIG. 15 illustrates another variant which can be soldered to a printed circuit board 23 Solder legs 29 and a projection 35 for locking an over-insulating housing on one of the side walls of the metal cage 5, which is also conductive Function as busbar takes over.

Figures 16 and 17 illustrate that instead of solder legs 29 SMD-type attachment pieces 35 to an SMD-like attachment to the circuit board usable are (see also Figure 17).

FIG. 18 a and b illustrate that the connecting device is of the type shown in FIG 1a also on a printed circuit board or on a web or a busbar 44th can be placed.

Figure 19 illustrates a plurality of strung together on a printed circuit board Connecting devices, wherein the second longitudinal leg 4b of the busbars 4th the connection devices integral with a conductive plate 42 in one piece with each other connected is.

Figure 22 illustrates a terminal block with two terminal devices 1, that rejuvenate downwards. It is well recognizable that this terminal block in comparison with FIG. 23 with non-tapered connection devices 1 builds narrower in the manner of Figure 1.

Fig. 24 shows another embodiment of the invention, in which the Clamping spring 3 is stamped on the metal cage, by means of inexpensive and durable stampings 47 in the region of the voltage applied to the first side wall 5a Longitudinal leg 3a. The cutouts 36, 37 in the second and fourth side walls 5b and 5d in the corner portions to the first side wall 5a are not required. Another embossment 50 may be between the busbar 4 and the Metal cage 5 may be provided.

Further punch-outs 48 e.g. in the second and / or fourth side walls 5b and 5d in the corner regions to the busbar 4 are arranged and after bent inside, that between them and the busbar 4 a Einführund receiving space 49 is defined for the conductor, which is the insertion of the conductor 2 facilitates and the defined seat of the conductor 2 in the connection device improved (Fig. 25).

Also, according to Fig. 24 to 26, the castle-like compound according to the type of Fig. 1a be provided. Alternatively, the second wall and 5b in their free end itself bent as a replacement of the web 10b of FIG. 1 towards the inside of the metal cage 5, such a particularly secure support area for the bending area 3c to realize the clamping spring 3 and at the same time to close the metal cage 5 and to stabilize (Fig. 26). The web 10a may persist, e.g. but he will here simply as a cut from the top of the wall 5d folded inwards (Fig. 25).

According to Fig. 27a-c, the bus bar 4 in the direction of its longitudinal extent on her the region to be inserted facing region with a kind of groove or groove 138th provided, which serves the centering of a conductor to be introduced.

In addition, the clamping leg 3b facing at its power rail 4 End two lateral tapered center points 139, 40, which in each case in correspondingly shaped corresponding recesses 141, 142 in the corners engage the busbar 4 (see also Fig. 28a).

An inserted conductor 128 is between the centering tips 139, 140 and the Groove 138 centered.

Optionally, raised grooves 143 in the busbar 4 - in the insertion direction arranged in front of and behind the recesses 141, 142 - the contact of the conductor to bus bar 4 (see Fig. 28b).

By the interaction of the centering tips 139, 140 with the groove 138 are the ladder is enclosed on a particularly large part of its circumference.

A special advantage is also to be seen in that not only ladder 128 different Diameter (Fig. 29a and c) but also a plurality of conductors 128a, b on this Way in a single connection device 1 can be connected (Fig. 29b and d).

Also, the wiring with one or more thin conductors is in this way considerably simplified (FIGS. 29a and b).

LIST OF REFERENCE NUMBERS

connection device

1

ladder

2

clamping spring

3

longitudinal leg

3a and 3b

bending area

3c

conductor rail

4

contact legs

4a

leg

4b

metal cage

5

sidewalls

5a-5d

recess

6

head Start

7

bending area

8th

undercut

9

web

10

head Start

11

bending area

12

connection

13

insertion

14

bulge

15

screwdriver

16

terminal housing

17

recess

18

insertion

19, 20

operating pieces

21

head Start

21 '

slot

22

circuit board

23

Test tap

24

pin connector

25

The End

26

cross-connector

27

ladder

28

soldering legs

29

plug leg

30

opening

31

undercut

32

slot

33

About housing

34

fastening piece

35

outs

36, 37

Markiererbereich

38

recess

39

tapers

40

openings

41

plate

42

head Start

43

conductor rail

44

head Start

45

locking lug

46

Error Coins

47

outs

48

insertion space

49

Verprägung

50

groove

138

centering

139, 140

recesses

141, 142

cried

143

Claims (32)

Connecting device (1) for a conductor (2), which a) a clamping spring (3) and preferably a bus bar (4) which is arranged in a metal cage (5) / which has a square cross-section shape with at least three, preferably four side walls (5a - 5d) and at least an axial end is open, which forms an insertion opening (14) for the conductor (2), b) wherein the clamping spring (3) has two longitudinal legs (3a and 3b), one of which is designed as a clamping leg (3b), which are aligned at an acute angle to each other and connected to each other via a bend (3c), characterized in that the first longitudinal limb (3a) of the clamping spring (3) is fastened to the inside of the first side wall (5a) of the metal cage (5) and abuts in sections directly on the inside of the side wall (5a), the bending region (3b) of the clamping spring (3) rests on at least one web (10a, 10b) molded directly onto the metal cage (5), and a projection (11) is provided on the inside of one of the side walls (5d) of the metal cage as a limit to the deflection of the clamping leg (11). Connecting device according to claim 1, characterized in that the first projection (7) on the first side wall, which engages in the recess (6), an undercut (9) for the recess (6) is formed. Connecting device according to one of the preceding claims, characterized in that the busbar (4) is L-shaped and rests with its contact leg (4a) on the inside of one of the side walls. Connecting device according to one of the preceding claims, characterized in that the second limb (4b) of the busbar (4) engages over the axial opening of the metal cage (5) remote from the insertion opening (14) and forms a boundary and a stop for the conductor (2). formed. Connecting device according to one of the preceding claims, characterized in that the metal cage (5) consists of a highly conductive metal such as copper and takes over an electrically conductive function. Connecting device according to one of the preceding claims, characterized in that on the second and fourth side wall (5d) of the metal cage (5) on the insertion side in each case one of the webs (10a, 10b) is integrally formed. Connecting device according to one of the preceding claims, characterized in that the length of the webs (10) preferably corresponds to half the width of the clamping spring (3) and that the webs are bent inwardly relative to the side wall plane and as a support for the bending region (3c) serve the clamping spring (3). Connecting device according to one of the preceding claims, characterized in that the clamping leg (3b) of the clamping spring is flat. Connecting device according to one of the preceding claims, characterized in that the second longitudinal leg is formed undulated in itself and thus at least one support for a screwdriver (16) or for an actuating piece (21) upon actuation of the clamping spring (3). Connecting device according to one of the preceding claims, characterized in that the metal cage (5) is formed as a bent part of a stamped sheet, wherein the two edges of the sheet metal strip via a lock-like connection (13) engage. Connecting device according to one of the preceding claims, characterized in that punch-outs (36, 37) in the side walls (5b, 5d) of the metal cage (5) press the clamping spring (3) against further side walls of the metal cage (5) and / or that the clamping leg (3b) of the clamping spring (3) in the non-connected state rests against the busbar (4). Connecting device according to one of the preceding claims, characterized in that the connecting device is inserted into a recess (18) of a terminal housing (17), wherein formed in the insertion direction recesses (19, 20) for insertion of a conductor and a screwdriver or an actuating piece in the terminal housing is, in the insertion direction recesses (19, 19 ', 20) for inserting a conductor (2) and / or a screwdriver (16) and / or an actuating piece (21) in the terminal housing (17) is formed. Connecting device according to one of the preceding claims, characterized in that the actuating piece (21) acting on the clamping leg (3b) is inserted into one of the recesses (19 '), wherein the actuating piece (21) preferably acts on the wave-shaped region of the clamping leg (3b). acts. Connecting device according to one of the preceding claims, characterized in that the upper side of the actuating piece (21) is widened in such a way that a marker region (38) is designed for attaching a marker, wherein the clamping case (17) is preferably provided with a corresponding recess (39). is provided for receiving the marker region (37). Connecting device according to one of the preceding claims, characterized in that the metal cage (5) tapers on one or both sides in the insertion direction. Connecting device according to one of the preceding claims, characterized in that the clamping spring in the region of the contact with the terminal housing in the region of the first longitudinal leg has a bulge (15) or a taper (40) or openings (41). Connecting device according to one of the preceding claims, characterized in that the clamping spring (3) thickens in its bending region (3c). Connecting device according to one of the preceding claims, characterized in that the connecting device is provided with a test tap. Connecting device according to one of the preceding claims, characterized in that at the insertion opening (14) opposite side of the connecting device (1) to the metal cage (5), to the clamping spring (3) and to the busbar (4) each have a further leg ( 5e, 4c and 3d) is formed, which are bent towards each other, wherein between the further spring leg (3d) and the further busbar leg (4c) of the busbar (4) is a connection possibility for a male connector (25) is formed and wherein the legs (5e ) of the metal cage (5) serves as a stop for moving the spring leg (3d). Connecting device according to one of the preceding claims, characterized in that a transverse connector (27) and / or a further conductor (28) can be inserted between the bending region (3c) and one of the side walls of the metal cage (5). Connecting device according to one of the preceding claims, characterized in that opposite to the insertion direction between a bent end (26) of the clamping spring (3) and a side wall (5a) of the metal cage (5) is a conductor and / or a Prüfabgriff and / or a cross connector ( 27) is insertable. Connecting device according to one of the preceding claims, characterized in that soldering legs (29) and / or other plug-in devices are integrally formed on the metal cage or that SMD contact regions (35) are integrally formed on the connecting device or that the busbars (4) are connected to one another (1). in one piece in the manner of a plate (42) are interconnected. Connecting device according to one of the preceding claims, characterized in that a projection (45) on the outer side of the metal cage (5) is formed, which in a recess a terminal housing (17) or other Übergehäuses can be latched. Connecting device according to one of the preceding claims, characterized in that the clamping spring (3) is impressed on the metal cage, in particular by means of stampings (47) in the region of the at the first side wall (5a) adjacent longitudinal leg (3a). Connecting device according to one of the preceding claims, characterized in that further punched-out portions (48) are provided in the second and / or fourth side walls (5b and 5d) in the corner regions towards the busbar (4), which are arranged and bent inwards in that an insertion space (49) for the conductor (2) is defined between them and the busbar (4). Connecting device according to one of the preceding claims, characterized in that the second wall (5b) is bent at its free end to the inside of the metal cage (5) in order to realize a support region for the bending region (3c) of the clamping spring (3). Connecting device according to one of the preceding claims, characterized in that a further embossment (50) between the busbar (4) and the metal cage (5) is provided. Connecting device (1) according to claim 1 or according to the preamble of claim 1, characterized in that the clamping leg (3b) at its free end centering tips (139, 140). Connecting device (1) according to claim 33, characterized in that the centering tips (39, 40) at least in the unconnected state respectively in correspondingly shaped corresponding recesses (141, 142) in the busbar (4) engage. Connecting device (1) according to one of the preceding claims, characterized in that the first longitudinal leg (3a) of the clamping spring (3) on the inside of the first side wall (5a) of the clamping cage (5) is fixed and partially directly on the inside of the side wall ( 5a), and the bending region (3b) of the clamping spring (3) rests on at least one web (10a, 10b) molded directly onto the clamping cage (5). Connecting device (1) according to one of the preceding claims, characterized in that the busbar (4) is provided with a groove (138) in the direction of its longitudinal extent on its region to be inserted into a conductor (28), wherein the at least one conductor (28) between the centering tips (39, 40) and the groove (138) is centered. Connecting device according to one of the preceding claims, characterized in that in the busbar (4) raised grooves (143) in front of and / or behind the recesses (141, 142) are formed.

Images