ES2287846T3 - CONNECTION DEVICE FOR DIRECT CONNECTION OF NUDE EXTREME OF THE DRIVER AND ELECTRICAL DEVICE WITH A CONNECTION DEVICE OF THIS TYPE. - Google Patents

Abstract

Device has a V-shaped leaf spring (4), and a bus bar (3) with a U-shaped trough (9). A conductor is guided into the trough in a direction perpendicular to a longitudinal blade of the trough. A contact point is arranged between a free end of a contact tongue of the spring and a lug of the bus bar, such that the conductor end is inserted into the contact point by an open end of the trough.

Description

Connection device for direct connection of bare ends of the conductor and electrical appliance with a Connection device of this type.

The invention concerns a device of connection according to the preamble of claim 1.

It's been a long time since in the technique of Direct in-line plug connection terminals are known for electric conductors of one or several wires in which a spring type spring fits and makes contact in a bar conductive with a slit and a flange or neck, which by a part is very comfortable for assembly but on the other hand it has I get the problem that by plugging in and establishing the contact of drivers have to transmit forces relatively large by the crossbow directly on elements of a housing of insulating material that acts as a buttress. The documents of 28 25 291 C1 and EP 1 391 965 A1 show examples of this type of state of the art

The generic document US 2003/0194918 A1 according to claim 1 shows a crossbow arranged in a box of metal terminals that are calculated to compress a conductor against one end of a right angle curved conductive bar which fits in the terminal box.

Facing the state of the art as it is known from the documents mentioned above, it tries to present a connection device for the technique of direct online plug that is safe while construction as simple as possible. The busbar has to also allow particularly safe current conduction and also of great intensities.

The invention solves this task by content of claim 1.

This connection device offers a high operating safety with minimal cost and is easy to plug and unplug.

The field of application of this device connection is almost unlimited since it is suitable for all types of electrical switchgear such as terminals in a row or protections

A very special advantage compared to solutions in which a conductor is introduced at the ends free axial of the cuvette parallel to its base profile it is that with the invention they can be carried out with the maximum simplicity of connection devices with several connection points, such that in a single bucket-shaped conductive bar several crossbows are positioned offset in the direction of the longitudinal extension of the conductive bar arranged in the bucket in the same direction or in opposite directions, which in a single conductor bar is configured several points of embordered

Particularly preferred are both the crossbow as well as the conductive bar constructed simply as curved pieces by stamping from cut sheet metal parts as they can be manufactured at low cost.

The connection device can be connected also from the side with a bare end of the driver without need of tool, while it is no longer possible without tools extract it again from the terminal against the action of the spring. The bucket-shaped conductive bar can also allow safe driving of high current intensities since at each point there is at least one wall of the bucket a sufficiently large driving cross section, what which represents an especially great advantage. The bar U-shaped conductor certainly needs differently than other constructions two side walls, but these can be design relatively thin since the construction of this Conductive bar is especially stable. In spite of both side walls is therefore surprisingly possible make connections and in particular connections lined in a row with this type of connection, which are suitable to be built particularly narrow in relation to the width of the conductor and however they are also suitable for the transmission of large current intensities or large powers without it occurring excessive heating at individual critical points, as is the case currently with the known state of the art.

According to one of the variants of the claim 1 with a small construction width and minimum costs of manufacturing the crossbow presents a U-shaped or V-shaped with two longitudinal profiles that are linked together through a curve, the crossbow being arranged and aligned in the bucket of such so that the free ends of the two spring wings engage in the bucket and the curve or cusp protrudes from the bucket towards up the open part that moves away from the base profile of the bucket.

With this, the conductive bar, which with preference surrounds the crossbow as a cage, absorbs the considerable efforts of the connection and disconnection process.

Alternatively, the crossbow may present a closed loop shape with two longitudinal profiles. According to this, the spring itself substantially absorbs the stresses that they act on it during the plugging operation.

Next and in the claims dependent variants of these two forms of execution.

Preferably, the crossbow is supported on the conductive bar in a simple way exclusively on your first spring wing - in particular on the side walls of the cuvette- and the conductive bar is configured of a metal sheet That is a good conductor of electricity formed as a piece curved by stamping.

The fastening of the crossbow or crossbows can be perform in a simple way because of the base profile of the cuvette with its two longitudinal profiles is cut and releases a flap, and from the base profile of the cuvette it bends or curves either in parallel alignment with the base profile or perpendicularly up or Z-shaped, which in the base profile of the cuvette a first recess is configured to window mode, with the first spring wing resting on the flap, either directly or in a recess.

In addition, for the support of the crossbow is convenient than at the free ends of the profiles lengths of the cuvette in each of the areas where the first spring wing protrudes from the bucket upwards, on die-cut shapes bend or curl flaps from the bar conductive inward towards the crossbow that engage in the corresponding recesses that exist in the first wing spring and additionally support and hold it on the bar conductive

For the formation of a point of embornado the second spring wing with its free end that is shaped forming an angle with respect to the base profile of the cuvette is extends with inclination towards the interior of the cuvette, in whose point the free end of the second spring wing rests on a piece of the conductive bar that is attached forming a single piece with the bucket.

At the free axial ends of the bar conductive is presented as adequate than the bar piece conductor is curved from one of the two profiles lengths of the U-shaped tray in the direction of inside the bucket.

However, it is advantageous that among free axial ends of the conductive bar are left several free sides to the part of the conductive bar from the profile of base of the cuvette and bends or bends upwards said piece from the base profile of the bucket.

It is convenient that the base profile of the bucket, below the point of embornado between the crossbow and the piece of the conductive bar, present a stamped opening special of this type or other recess that serves for the accommodation or the passage of the bare end of the driver.

The invention also allows it to be possible make an electrical device, in particular a terminal strip in a row, a printed circuit board, a protection or others similar that are provided with one or more devices of connection according to the invention.

Other advantageous configurations can be extract from the remaining dependent claims.

The following describes in greater detail the invention with the help of the execution examples and the reference to the drawings. It shows:

Figure 1 a perspective view of a first connection device in unconnected state;

Figure 2 a sectional view of the device connection of figure 1 in unconnected state;

Figure 3 a sectional view of the device connection of figure 1 in unconnected state;

Figure 4 a perspective view of a leaf spring for the connection device of figure 1;

Figure 5 a perspective view of a bar conductive for the connection device of figure 1;

Figure 6 a perspective view of a connection device with several connection points and several leaf springs in a common conductive bar;

Figure 7 another perspective view of the connecting device of figure 6 with the busbar represented only partially;

Figure 8 a perspective view of a part of a terminal box with a connection device in the style of Figure 1 in unconnected state;

Figure 9 the terminal box with the device connection of figure 8 in connected state;

Figure 10 another connection device in a printed circuit board terminal design; Y

Figure 11 another connection device connected with a ground for a mounting strip;

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Figure 12 a perspective view of another connection device in unconnected state illustrating a first type of alternative for fixing the crossbow in the bucket;

Figure 13 a sectional view of the device of connection of figure 12 in an unconnected state;

Figure 14 a perspective view of another connection device in unconnected state, which illustrates another type of alternative in fixing the crossbow in the bucket;

Figure 15 a sectional view of the device of connection of figure 14 in an unconnected state;

Figure 16 a perspective view of a bar bucket-shaped conductor with a padlock; Y

Figure 17 a perspective view of another connection device in an unconnected state, which has a loop-shaped crossbow;

Figures 18-20 different views of another connection device according to the invention.

Figure 1 shows a first example of execution of a connection device 1 that allows connection of a bare end 2 of the conductor of a cable with the so-called direct connection procedure without tools (figure 3).

The connection device has a bar 3 conductor that is shaped as a tray 9 in which as a spring compression is arranged a V-shaped crossbow 4 that acts on the end 2 of the conductor for tightening the end 2 of the conductor on the conductive bar 3, which is designed in such a way so that end 2 of the conductor can be introduced directly at the hitching point 5 between crossbow 4 and the conductive bar even without tools.

The V-shaped crossbow 4 (see Figure 2), which is bent from a custom cut of a sheet in Shape of a strip, it has a first spring wing 6 which is oriented perpendicular to the base profile of the cuvette 9 in U shape, and a second spring wing 7 which in this case is angled and joined with the first spring wing 6 to through a curvature constituting the contact wing and that with preference is oriented at an angle of 30 to 60º, in this case an angle of approx. 45º with respect to the first wing 7 of spring.

In this way, the two free ends of the two spring wings 6, 7 are directed towards the base profile from the bottom of the cuvette 9 and the curvature 27 or cusp that joins the two Spring wings 6, 7 protrude from bucket 9 upwards.

Crossbow 4 is supported with its first wing 6 spring on the conductive bar 3 which is configured as piece curved by stamping from a sheet of metal that conduct electricity well.

For the manufacture of the conductive rod 3 in first a metal sheet 8 is folded approximately rectangular in a U shape or in a gutter shape, thereby the tray 9 is configured with its two longitudinal profiles 12, 13 and a base profile 39 perpendicular to them. Then to from the base profile 39 of the cuvette 9 it is cut and left free on three sides a U-shaped flap 10 and from the base of the cuvette bends approximately 90º upwards, which in the base profile 39 of the cuvette is configured a recess 11 to window mode

Then, on the flap 10 at least the free end of the first wing 6 of spring and eventually its fixation is completed (for example by stapling and / or punching), whereby the first wing 6 of spring protrudes perpendicularly from the base profile 39 of the bucket up from the bucket.

The width of the tray 9 corresponds to this substantially with the width of crossbow 4, whereby, this fill the free U-shaped section in tray 9 and extend from one of the longitudinal profiles 12 to the other profile 13 longitudinal. You can also think of it being a little wider that the bucket and - forcing a little the width of the bucket 9 during the introduction - seat with tightness in it.

The first spring wing 6 is supported laterally on the flap 10 in the opposite part to the second wing  7 spring. The width of the tray 9 corresponds substantially to the width of the spring wing. The other spring wing 7 is supported in the conductive rod 18, whereby the spring is held and ready for mounting in cuvette 9.

From the two profiles 12, 13 lengths of cuvette 9, at the free ends of the profiles 12, 13 longitudinal and always in the area where the first spring wing 6 protrudes from the bucket, there are some flaps 14,15 which, from die-cut shapes, are curved towards the inside of the conductive bar, which fit in corresponding recesses 16.17 (for example die cut shapes rounded) practiced on the first spring wing 6. Because the first spring wing 6 is stabilized and supported and supported in the bucket.

The second spring wing 7, with its end free that is configured at an angle to profile 39 of base of the cuvette, extends obliquely in the direction of bottom of bucket 9. There it rests on a piece 18 of the bar conductor that is configured as a stop of one of the profiles 12 longitudinal, which is curved inwards starting from one of the two longitudinal profiles of the cuvette 9 in U-shape at right angles to the interior of the bucket.

In this way, between the free end of the second spring wing 7 and the stop 18 of the busbar is set the embossing point 5 at which from the open side the bare end 2 of the conductor can be plugged from the cuvette no tools needed with the direct plug technique in line. Since the conductive bar 3 in the base profile 39 by below the embossing point 5 it is provided with another recess 19 (figure 3) which is configured in such a way that another piece 22 of the conductive bar that is cut and released on three sides to from the base profile 39 of the conductive bar and that in the area of the plane that is below the longitudinal profiles is bent, the bare end 2 of the conductor exceeding the profile 39 The base of the cuvette 9 can be inserted at the point of connection, at which point the contact is established in two bulges of contact 20, 21 (see figure 3) at stop 18 of the bar conductive Above one of the contact bulges, the piece 18 of the conductive bar has a projection.

In this way and with the simplest means performs a direct plug-in technique online connection device capable of establishing contact simple and without tools, which is characterized for a simple and yet very safe construction in its operation, in particular because the conductive bar 3 with a cuvette shape absorbs substantially all the stresses that they act in the point 5 of embornado and due to its geometry also It has great conductivity.

The free end of the contact wing 7 of the crossbow 4 is arranged and configured (chamfered 28; figure 4) such that a conductor in the connected position is well compressed against the busbar and is secured with own friction against an exit of the point of embornado.

On the basis of the connection device 1, they can make several connections in a single conductive bar 3 cup-shaped with a corresponding longer design of the 3 conductive bar. In this regard, inside bar 9 longer conductor and continuing with the bucket shape, it they have 4 leaf springs on several axially displaced points each.

In this way on the one hand it is possible configure at each of the two ends of the busbar in  bucket shape respectively a device 1 connecting to the style of figure 1, the wings 7 of contact of the two leaf springs 4 in opposite directions. A Such arrangement is shown in Figure 11.

In addition, between the two crossbows 4 of the ends can still be arranged other crossbows 4, being subject the other leaf springs 4 with their first spring wings 6 always in the style of figure 1 on the conductive bar and pieces 18 of pieces being always cut and released on three sides the conductive bar at the bushing points in profile 39 of cuvette base 9 and substantially perpendicular curves up from the bottom of the bucket 9.

In this way you can realize how many connections is desired on a connection device 1 either oriented in the same direction and / or in opposite directions.

The optional punching 23 on the bar conductive can be used for a plug 24 of a transverse connection device or for test taking (figures 6 and 7).

The conductive bars 3 can be arranged without problems in electrical appliances of the most diverse types, in particular in terminal strips in a row with housings 25 of material insulator (see figures 8 and 9) or protections (no represented here) or similar ones, or also on plates 26 of printed circuits (see figure 10).

In housings 25 of insulating material can also engage pieces 29a, 29b of connection between the profiles of the conductive bar to, for example, configure a limitation of stop for the crossbow and screwdriver during release or loosening (part 29b) or an elastic buttress (part 29a, which fixes wing 6 in a groove between the piece itself and another piece 29c of the insulating material housing).

In the housings of insulating material is formed a first opening 30 above the emborning point  to connect a conductor without tools (figure 8, figure 9) at the terminal point and a second opening 31 laterally to the flange point above the contact wing for unhook the bare end 2 of the conductor at the point of flanged, by pressing the contact wing 7 of the crossbow 4 by example with a screwdriver 32 through the second opening 31, whereby the conductor can be removed from the housing 25 of isolating material.

Figure 10 shows a variant in which the Conductive bar 3 is provided with two pins 33 for welding, in this case and by way of example two pins configured forming One piece with conductive bar 3, which can be introduced in the holes 34 of the printed circuit board 26, whereby The connection device can also be used with printed circuits. Above the connection device you can place a dust jacket 35 with openings 36, 37 to connect and disconnect on the printed circuit board 26.

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Figure 11 finally shows a variant in which the busbar of another connection device 1 is provided with two points of embornado and crossbows 4 and where another conductive bar 38 is shaped or attached to conductive bar 3 and that other bar can be used both directly and to through contact springs or the like to set the contact with a mounting strip. This way you can make a PE connection with simple means, for example.

Figures 12 and 13 show a first variant of figure 1 in which the first spring wing 6 It has a recess 41 as a window in its extreme area that fits in the tray 9, in which an angled flap 42 extends Z-shaped, which has been cut and released from the profile 39 base of the bucket and folded out. With it this spring rests on the one hand on the flap 42 and on the other hand with the second spring wing rests on the top 18 of the bar conductive

The flaps 14,15, which are folded inwards from the conductive bar and that only they serve as a buttress for the conductive bar or that engage in the corresponding recesses 16, 17 of the first wing 6 of spring, can again be provided as complementary. You can also think that in this variant you you can do without them since the Z-shaped flap already offers security against spring exit. Other support it takes place at the stop 18 of the conductive bar. In this way the first spring wing 6 is again stably supported in the bucket

Figure 14 shows another variant of the figure 1 in which the first spring wing 6 again has a recess 44 which is located in the thickness of the bottom of the bucket, whereby the first spring wing protrudes slightly downwards or out through the base profile 39 of the bowl 9. In the recess again extends a flap 43 -or in this case a piece of the base profile 39 of the tray 9-. This is not in this case curved in itself but cut and released on three sides in the base profile 39 of the tray 9, whereby the first wing 6 of spring is plugged with its recess 44 on this flap 43 in the plane of the base profile 39 of the tray 9. With this spring rests on the one hand on the flap 43 and on the other hand it Lean back on the busbar. The flaps 14, 15 that are curved inwards from the conductive bar can again be planned as complementary -as has been represented here- or on the contrary you can do without them. In any case, crossbow 4 remains stable again in the bucket.

Figure 16 illustrates how the bar stop 18 conductor is curved from one of the profiles 12 longitudinal and extends to the other longitudinal profile, in whose point a stop 45 and a corresponding bar notch 46 conductive or the corresponding longitudinal profile mesh between yes as a brooch or padlock and thus constitute a cage or stable frame on which the crossbow can be supported so sure.

Figure 17 shows a perspective view of another connection device in an unconnected state that has a loop-shaped crossbow 53. In bucket 9 - seen here by the open side - leaf spring 53 is arranged for tightening the bare end of the conductor against the top 18 of the bar conductive, being sized such that the end Naked driver can be introduced without tools handling directly at the 55th of the terminal between the leaf spring 4 and stop 18 of the conductive bar.

Crossbow 53 has a first wing 56 of spring which is provided with a recess 57 as a window. Next to the first spring wing 56 with the recess 57 in shape The clamping spring is arranged on the tray 9 as a conductive bar In this case it is placed on the open side of tray 9 on the edges of profiles 12, 13 longitudinal, being crossed by the projection 40 of sector 18 of the conductive bar that is curved over itself in such a way which ensures crossbow 53 in the form of a loop against its exit from the cuvette in the area of the point 55 of embornado.

In this way the crossbow is aligned with the spring wing 56 parallel to the conductive bar and arranged flat on the bucket and / or held in it. So, the crossbow describes a closed loop 58, extending with loop 58 outside the bucket and returning to the recess 57 in the form of a window and going through it with the free end of the tightening wing 59 in that area it presents only the width of the recess. He free end of the tightening wing 59 compresses the bare end of the conductor against the stop 18 of the conductive bar.

Loop 58 has an elongated shape and is directed substantially inclined with respect to the direction of introduction of the driver, in particular in such a way that the angle? between the clamping wing and the direction L of driver introduction - in this case vertical from above - be less than 45º, in particular less than 30º.

With this, this spring 53 of crossbow and tightening surprisingly presents a geometry reminiscent of geometry of the so-called tension spring connections. But is arranged and designed in such a way that a driver can insert into the point of embornado from the opposite side of the loop 58 without tools. A very special advantage of this tightening spring 53 is again that on the one hand it allows a direct plug plug since there you can introduce without more or more a driver but nevertheless it is not it is possible to easily extract it again against the edges that are in the area of the point 55 of embornado. Very al On the contrary, in this respect the user needs a tool. In addition to this, there is also the advantage of being a closed system in itself, that is, the tightening spring 53 absorbs by itself all the efforts that appear between the bare end of the conductor and the clamping spring 53. Simply the spring wing 56 with the recess is required 57 is firmly attached to the busbar or cuvette 9.

Figures 18 to 20 show another example of Execution of the invention particularly advantageous.

The connection device represented in these figures also shows a conductive bar 3 that is shaped for tray 9 in which the crossbow 4 is arranged in the form of V.

The V-shaped crossbow 4 is also curved from a custom cut of a strip-shaped sheet and presents the first spring wing 6 that is aligned perpendicular to the base profile of the U-shaped cuvette 9 and the second spring wing 7, the contact wing 7 which in this case is aligned at an angle and joined with the first wing 6 of Spring through a curvature. Also again the extremes free of the two spring wings 6, 7 are directed towards the base profile of the bottom of the cuvette 9 and the curve 27 or cusp that joins the two spring wings 6, 7 protruding from the tray 9 towards above.

As in figure 1, crossbow 4 is also supported with its first spring wing 6 in the conductive bar 3. In the base profile 39 of the cuvette there is again configured a window-shaped recess - in this case provided with the symbol reference 11-. The recess 19 allows the driver to switch to through bottom 39 of bucket 9. Between recesses 11, 19 a wall 68 is configured at the bottom of the tray 9.

The width of the crossbow in the area of the curvature substantially corresponds to the width of the cuvette 9, that is to say, in that area the totality of the constructive space available. This is particularly visible to from the assembly situation of figure 20. Only in the area that fits in the bucket narrows then crossbow 4 in the area of its wings 6, 7 substantially to the interior width of the tray 9. The width of the tray 9 also corresponds substantially with the width of crossbow 4, whereby this fill in the tray 9 the free U-shaped cross section and extends from one of the longitudinal profiles 12 to the other longitudinal profile 13. With it again all of the tightening wing width is available for introduction of a conductor with a diameter that at most corresponds to that width. Against the side walls of the tray 9 you cannot make room for the driver and this is safely secured.

The tightening wing 7 rests against a piece 18 of the conductive bar which to optimize the contact is provided with a punching 60 with a tightening edge 61 that optimizes Contact establishment.

Of the two longitudinal profiles 12, 13 of the cuvette 9, at the free ends of said profiles 12, 13 longitudinal and always in the area where the first wing 6 of spring engages in the bucket, from die cut shapes they are curved from the conductive rod inwards some flaps 14, 15 (in figure 18 only one of the two flaps).

These flaps 14, 15 are closed in this case over respective grooves 66 in which the spring 4 fits with its constructive width that in this area is the full width, with which in this example of execution crossbow 4 is supported and supports substantially in the area of that slot 66. In this area they support almost all the efforts that occur when introducing a driver. The flaps 14, 15 curved inward also act as stabilizers and hold in a complementary way and advantageously multifunctional piece 18 of the conductive bar of the next connection that is added to the axial cuvette and make the her support (figure 19). Complementarily the pieces 18 of the conductive bar, with its areas protruding from the bucket, they also rest on the insulating material housing, for example in a housing of a terminal strip in a row -figure 19-, which presents a support song 62.

Shapes 63 stamped on profiles 12, 13 longitudinal or side walls of the bowl 19 that engage in the corresponding side recesses 64 in the first wing of the crossbow 4 ensure this against unintentional extraction up from bucket 9. A lower end zone 65 and more narrow of crossbow 4 that engages in a lower opening of the base profile of cuvette 9, which preferably does not protrude from the lower edge of the base profile, additionally prevents a non-turning intentional of crossbow 4 over the area of its support in the slots 66 existing in the side walls or profiles 12, 13 lengths of the cuvette, in which place it is supported so sure crossbow 4 and where the forces acting are supported during the introduction of a driver.

Since two side walls are present of large area the situation at the bottom 39 of the bucket 9 is different from other constructions, for example the step through the bottom of the bucket. The side walls or longitudinal profiles 12, 13 ensure at all times a sufficient capacity for the passage of the current and they are in charge In addition to the function of securing support and preventing removal.  Of course, these functions also raise some Obligations regarding the configuration of profiles Longitudinal But in this case that is not critical since in spite of everything due to longitudinal profiles 12, 13 It has enough cross section.

Finally it is still worth mentioning that the a the 6 of the crossbow 4 presents a stepping 67 that simplifies notably automatic assembly since it constitutes a distinctive feature that facilitates the distinction of wings 6, 7 configured differently - tightening wing and support wing - and with it the orientation of the crossbow 4 during assembly.

Reference symbols

connection device

one

bare end of driver

2

conductive bar

3

crossbow

4

embossing point

5

spring wing

6

spring wing

7

metal sheet

8

bucket

9

flap

10

recess

eleven

longitudinal profiles

12.13

flaps

14.15

recesses

16, 17

busbar stop   

18

recess

19

contact bulges

20, 21

punching

2. 3

plug

24

material housing insulating

25

circuit boards printed

26

curvature

27

chamfering

28

joining pieces

29a, 29b

openings

30.31

screwdriver

32

solder pins

33

drills

3. 4

dust jacket

35

openings

36, 37

conductive bar

38

base profile

39

outgoing

40

recess

41

flaps

42

flaps

43

recess

44

stop, top, maximum as a noun, top as an adverb

Four. Five

notch

46

crossbow

53

embossing point

55

first spring wing

56

recess

57

tie

58

tightening wing

59

punching

60

tightening edge

61

support song

62

stamped shapes

63

recesses

64

extreme zone

65

staggering

67

wall

68

Claims (27)

1. Connection device (1) for connecting a bare end (2) of a conductor with,

to.

to the minus a crossbow (4, 53) that acts as a compression spring on the bare end of the conductor for end tightening (2) bare the conductor against a conductive bar (3),

b.

the crossbow (4, 53) being designed and arranged in such a way on the conductive bar (4, 53) that the bare end (2) of the conductor can be introduced directly without manipulation tool or other tools in the site (5 ) of embornado, characterized in that

C.

the Conductive bar is configured as a U-shaped cuvette (9) gutter type with a base profile (39) and two profiles (12, 13) longitudinal, and

d.

the arrangement and configuration of the crossbow (4, 53) are made of such that a conductor can be introduced into the bucket (9) from a perpendicular direction with respect to the profile (39) of base of the bucket (9), for which the crossbow (4) is arranged and oriented in the cuvette (9) such that the free ends of the two spring wings (6, 7) engage in the bowl and the curvature (27) or cusp protrude from the bucket (9) upwards in the open part away from the base profile (39) of the cuvette (9), or because the crossbow has a first spring wing (56) that is  provided with a recess (57) as a window and that is supported on the edges of the longitudinal profiles (12, 13), extending the loop from the first spring wing forming a arch towards the recess (57) shaped like a window crossed by the free end of a tightening wing (59), and

and.

in the single conductive rod (3) in the form of a tray and in the direction (L) of the longitudinal extension of the conductive rod (3) is settle on the bucket (9) several crossbows displaced from each other arranged in the same direction or in opposite directions, with which on a single conductive bar are configured several embossing points

2. Connection device according to claim 1, characterized in that the crossbow (4) has a V-shape with two longitudinal profiles (6, 7) that are joined together by a curvature (27). 3. Connection device according to claim 2 or 3, characterized in that the first spring wing (6) with the second spring wing (7) or contact wing covers an angle of approximately 30 to 60 °. 4. Connection device according to one of the preceding claims, characterized in that, from the base profile (39) of the tray (9) with its two longitudinal profiles (12, 13), a flap (10) that starts from the profile (39) of The base of the cuvette is curved approximately perpendicularly upwards, whereby a recess (11) is formed as a window in the base profile (39) of the cuvette, the first spring wing resting against the flap (10). 5. Connection device according to one of the preceding claims, characterized in that the width of the cuvette (9) substantially corresponds to the width of the crossbow (4), whereby the latter fills the free U-shaped cross section of the tray (9) and extends from a longitudinal profile (12) to the other longitudinal profile (13). 6. Connection device according to one of the preceding claims, characterized in that the crossbow (4) is slightly wider than the cuvette (9) and is compressed in the cuvette forcing the width slightly. 7. Connection device according to one of the preceding claims, characterized in that at the free ends of the longitudinal profiles (12, 13) of the tray (9) in each of the areas where the first spring wing (6) Overhangs of the bucket (9) upwards are formed flaps (14,15) which, starting from the conductive bar, are curved inward in the direction of the crossbow (4). 8. Connection device according to one of the preceding claims, characterized in that the flaps (14, 15) attack in respective recesses (16, 17) of the first spring wing (6). 9. Connection device according to one of the preceding claims, characterized in that the second spring wing (7) extends with its free end which is configured at an angle with respect to the base profile (39) of the tray penetrating inclined in the tray (9), at which point the free end of the second spring wing (7) is pressed against a piece (18) of the conductive bar that is joined forming a single piece with the cuvette (9). 10. Connection device according to one of the preceding claims, characterized in that the part of the conductive bar is curved inwardly towards the interior of the tray from one of the two longitudinal profiles of the U-shaped tray (9). 11. Connection device according to one of the preceding claims, characterized in that the part (18) of the conductive bar is immobilized and locked on the other longitudinal profile (13). 12. Connection device according to one of the preceding claims, characterized in that the base profile (39) of the tray (9) below the embossing point between the crossbow (4) and the part (18) of the conductive bar has a recess to accommodate the bare end of the driver. 13. Connection device according to one of the preceding claims, characterized in that the part of the conductive bar leaving the base profile (39) of the tray (9) is cut and free on several sides and is curved upwards from the base profile (39) of the cuvette. 14. Connection device according to one of the preceding claims, characterized in that the free end of the contact wing (7) of the crossbow (4) is provided with a chamfering (28). 15. Connection device according to one of the preceding claims, characterized in that pins (33) for welding are configured directly on the conductive bar (3). 16. Connection device according to one of the preceding claims, characterized in that the conductive bar (3) in the area next to at least one of the crossbows (4) is provided with recesses (23) for inserting the pins (24) which It can be used to make a transverse connection or a test socket. 17. Connection device according to one of the preceding claims, characterized in that the first spring wing (6) in its end zone that attacks in the tray (9) has a recess (41) as a window through which a flap (42, 43) that is curved from the base profile 39 of the tray. 18. Connection device according to one of the preceding claims, characterized in that the flap (42) is curved in the form of a Z. 19. Connection device according to one of the preceding claims, characterized in that the recess (44) is located at the height of the base profile (39) of the tray and the flap (43) is curved in the plane of the base profile of the bucket, whereby the first spring wing in the mounted spring position protrudes slightly downward or outward over the base profile (39) of the bucket (9). 20. Connection device according to one of the preceding claims, characterized in that the crossbow (53) configures a closed loop in itself. 21. Connection device according to one of the preceding claims, characterized in that the loop (58) has an elongated shape and arranged with inclination towards the direction (L) of introduction of the conductor, in particular such that the angle? Between the tightening wing and the direction (L) of the driver's introduction is less than 45º, in particular less than 30º. 22. Connection device according to one of the preceding claims, characterized in that the crossbow (4) on its first spring wing (6) is supported exclusively on the conductive bar (3) and that the conductive bar (3) is formed as a part curved by stamping. 23. Connection device according to one of the preceding claims, characterized in that the crossbow (4) is supported on the longitudinal profiles (12, 13) of the tray. 24. Connection device according to one of the preceding claims, characterized in that from the two longitudinal profiles (12, 13) of the cuvette (9) at the free ends of said longitudinal profiles (12, 13) and on die-cut shapes there are flaps (14, 15) of the conductive bar that are curved inwards, which are engaged in grooves (66) in which the spring (4) engages, whereby the leaf spring is held and supported in said groove. 25. Connection device according to one of the preceding claims, characterized in that stamped shapes (63) are formed in the longitudinal profiles (12, 13) of the tray (9) that engage in the corresponding lateral recesses (64) existing in the wing (6) of crossbow support (4). 26. Connection device according to one of the preceding claims, characterized in that a lower end zone (65) of the crossbow (4) that engages in a lower opening (11) of the bowl (9) secures it against rotation. 27. Connection device according to one of the preceding claims, characterized in that one of the wings of the crossbow has a stepping (67).