ES2321397T3 - CONNECTION DEVICE FOR DIRECT CONNECTION OF DRIVER EXTREME. - Google Patents

Abstract

Connection device (1) for connecting a stripped conductor end (2) with an adjustment spring (4) that acts as a compression spring on the conductor end to immobilize the conductor end (2) in a stirrup, a) wherein the adjustment spring (4) is configured in such a way that the conductor can be inserted directly without drive tools into the connection point (5), b) where the adjustment spring (4) has a first arm of spring (6) which is provided with a recess (7) in the form of a window, and c) where in the first spring arm (6) a closed loop (8) is then joined that ends in a conductive bar arm ( 9) which crosses the recess (7) in the form of a window, so that the conductor end (2) that can be introduced from the side of the loop (8) into the recess (7) in the form of a window, can be immobilize and contact as a stirrup without tools and by direct plug between the arm conductive bar (9) and a recess wall (7) in the form of a window or a conductive bar (3) that crosses the recess, characterized in that d) the first spring arm (6) with the recess (7) in the form The window is stationary in a conductive bar (3) or any other element.

Description

Connection device for direct connection of conductor ends.

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

In addition, terminals of connection for electric conductors of one or more souls in direct plug technique in which an adjustment spring engages U-shaped open inside a conductive bar with a recess and a collar which on the one hand facilitates assembly, where however there is the problem that they have to thus transmit on a conductive bar or on a insulating material housing, relatively large forces at insert and contact drivers with other device elements of connection.

Document DE 39 11 459 A1 shows a terminal of spring.

A connection device according to gender Document DE 35 14 099 A1 is known. In this document you know a connection terminal for two conductors to connect to each other in which a first flexible conductor can be inserted into a spring terminal for what opens with the help of a push button operating a spring terminal arm presenting a window shaped recess. A second massive driver by the opposite can be inserted into the connection point on the side opposite without opening the terminal. In this case the driver it is pushed past the conductive bar which opens the arm of the spring through the window-shaped recess. Given the the entire spring is rotatably housed in a bearing of Joint construction is relatively complex.

The invention has the task of solving this problem with easy construction means to the extent possible.

The invention solves this task by the object of claim 1.

Preferably the first spring arm with the window-shaped recess is fixed in a bar conductive or in any other element, especially in shape still.

Advantageous configurations are deduced from the dependent claims.

The invention creates a connection device that at least it only consists of an adjustment spring that properly assumes the function of establishing the Contact. The adjustment spring in this case has a geometry That remembers a spring. The difference, however, is that a conductor is inserted from the opposite side - that is from the side of the elastic loop - automatic without tools inside the window-shaped recess to immobilize it there for example between the terminal arm that crosses the recess in the form of window and the edge of the recess or a conductive bar that It also goes through the recess.

This driver insertion address in principle can also be seen in document DE 3514 097 C2, without However there has not been recognized that you can do without rotating spring housing if the spring arm with the recess is fixed (for example, on the busbar or on a insulating material casing) and differently from the state of the technique you can only move the free arm that crosses the window.

A terminal formed in this way is connectable without more from the side without tools, while a driver is not you can remove the spring effect again without tools

The terminal therefore offers high security operating with minimal costs and can be connected without tools and can be disconnected with a tool.

It is imaginable that the busbar present a completely limited recess or one that is open in a side that favors the introduction of the driver's end.

According to the characteristics of the dependent claims the connection device also can be arranged differently on the busbar what which entails the need for application of another part - of the bar conductive - which on the other hand, however, has the advantage that Do not underestimate that you can choose in each case most appropriate materials for spring and bar contact conductive while in the event of a waiver of a bar driver you have to look for a commitment of materials, specifically a material that presents both good characteristics Elastic as good contact characteristics.

Preferably the conductive bar is oriented simply perpendicular to the recess, for example, so that in its extreme area towards the spring of terminal is folded several times especially in 90º in such a way that a kind of U-shaped space forms at the end of the conductive bar where one of the adjustment springs, so that the U-shaped space so suitable serve as protected accommodation space from several sides or closed for conductors to be inserted. In this variant the waste of material in the conductive bar is minimized in case of an especially compact sizing, as well as the characteristics of Contact.

The invention is described below in detail referring to the drawing with the help of examples of realization. Sample:

Figure 1 a perspective view of a first connection device;

Figure 2 a perspective view of the connection device of Figure 1 in a recess of a terminal case;

Figure 3 an example embodiment of Figure 2 during the process of connecting;

Figure 4 a perspective view of a second connection device;

Figure 5 a conductive bar for the connection device of Figure 4;

Figure 6 a third connection device for several - two in this case - serial drivers;

Figure 7 a fourth connection device for several - two in this case - serial drivers;

Figure 8 a fifth connection device for several - two in this case - parallel conductors;

Figure 9 a perspective view of a sixth connection device;

Figure 10 a terminal housing with others connection devices; Y

Figure 11 a perspective view of a seventh connection device

Figure 1 shows a first example of realization of a connection device 1 for the connection of direct plug of a stripped conductor 2 end. This presents a conductive bar 3 in which a spring is arranged setting 4 that acts as a compression spring on the end of conductor 2 to immobilize the conductor end 2 on the bar conductor 3 which is configured such that the end of Driver 2 can be entered without tools directly without actuation tool at connection point 5 between the spring of adjustment 4 and the conductive bar.

The adjustment spring 4 has a first arm spring 6 which is provided with a recess 7 by way of window. On the first spring arm 6 with the recess 7 as a way The adjustment spring 4 is arranged (fixed) on the window conductive bar In this case she is oriented with the arm of parallel spring 6 with respect to the conductive bar and is superimposed and / or fixed flat on it. The arm of spring 6 can also be arranged at a distance from the arm of the conductive bar (see Figure 3).

So this describes a closed loop 8, in where it extends in loop 8 back to the recess 7 as a window and through it with a free terminal arm 9 - which in this case already only shows the width of the recess. He free terminal arm 9 presses the end 2 of the conductor against the conductive bar 3.

Loop 8 has a stretched shape with two spring arms 10, 11 almost parallel oriented, as well as a arch piece 12 that joins the spring arms 10, 11 and is inclined oriented with respect to the direction of conductor insertion, especially in such a way that the angle α between the terminal arms and the insertion direction of conductor L - in this case perpendicular from above - is less than 45º, especially less than 30º.

The adjustment spring has a geometry that Remember the geometry of the so-called spring connections. Without However, it is arranged and configured in such a way that a driver can be introduced without tools from the opposite side of the tie. A special advantage of this adjustment spring 4 is based on this case in which on the one hand it allows a connection contact of direct plug since a conductor can be introduced without further into he, however, cannot be brought out against the edge in the zone of the connection point 5. For this the user I would rather need a tool. In addition to this, this offers on the other hand also the advantage of a closed system, that is, the adjusting spring 4 itself absorbs all the forces between the conductor end 2 and adjusting spring 4. For this it is advantageous if the spring arm 6 with the recess 7 is fixed on the busbar 3.

The conductive bar 3 has an angular shape of union, where one of the two arms of the conductive bar 14, 15 of the conductive bar 3 serves for the direct support of the first spring arm 6 with the recess 7 as a window and this properly presents a recess 16 as a window that is in line with the recess 7 as a first arm window of spring 6.

Preferably, the recess 16 by way of conductive bar window 3 is formed by a die cut, especially in the way that another piece of busbar 17 it is joined on one side with the conductive bar 3 which is bent from such that it extends or extends the arm of the bar conductor 15 through the recess 16. A bulge 18 in the conductive bar 3 in the area of the connection point 5 improves the contact between the busbar and the conductor end 2.

Figure 2 shows a configuration of the connection device 1 of Figure 1 in a material housing insulator 19. This insulating material housing 19 is provided with at least one window or at least one recess 20, in which can (n) insert at least one (or several) laterally connection device (s).

In this case they serve souls 21, 22 that cross the inside of loop 8 to support the spring or as a stirrup to define the adjustment spring 4 within the insulating material housing and to ensure a performance without problems, as well as a limitation of spring movement.

A driver introduction hole 23a it is used to introduce the conductor end 2 into the Connection point. An introduction hole 23b on the other hand it is used for the introduction of an action tool 24 (Figure 3) and thus makes it possible to disconnect the device from connection that in this configuration can be used, for example, to a rail terminal.

When contacting simply enter the end 2 conductor for the driver insertion hole 22 inside the connection device, so the terminal arm is fold so that the connection point 5 opens, so that the conductor end 2 can be introduced and fixed there.

Using tool 24 (Figure 3) configured as a screwdriver that is inserted into the hole of introduction 23b it is possible to bend the terminal arm 9 away from the connection point 5, so that it is possible to remove the end of the conductor 2.

Figure 4 shows a variant to Figure 1 which is characterized because it is clarified especially that in this case the compression spring or adjustment spring 4 is configured as a closed system itself, which absorbs forces to contact driver end 2.

The 3 'conductive bar of Figure 4 presents in this case the geometry of Figure 5, that is, is bent from a strip and presents three arms of the conductive bar 25a, b, c of which of the middle 25b is folded at 90º for the transmission of currents high enough and thus defines a wall side of the recess 16 'open on one side (which facilitates the driver introduction), where it allows the transmission of current high enough due to its width and its setting. In the arm of the conductive bar 25c which is provided at connection point 5 a turn is provided bulging 26 to establish contact.

Adjustment spring 4 is located here at distance and parallel to one of the arms of the bar conductive 25a. This distancing is done by the section of conductive bar 25b and the soul 27 which is bent from the arm of the conductive bar 25a upwards in the direction of the spring of Adjust 4 and keep it at a distance with its free ends.

The special advantage in this case is based on the good current driving characteristic of the bar conductive 3 'also in the area of the recess 16' especially by the conductive bar section 25b next to the recess 16 ' (or in this case the hole), where you also have to highlight that this conductive bar 3 can be specially manufactured Economical as a stamped curved piece.

Otherwise with this direct plug spring all variants of Figures 1 to 5 can be made, but also for example multiple connections according to the type of the Figure 6 with two connection devices 1, 1 '.

In Figure 6 two devices are arranged of connection in a conductive bar 3 according to the type of Figure 1 which also continue behind a 28 fold behind the first adjustment spring 4 to a second adjustment spring 4 '. In this case you can also see the position of the adjustment spring 4 in been disconnected

Figure 7 shows an analogous configuration with a conductive bar 3 that joins in one piece through a soul of connection 29 two connection devices of which each is constructed according to the mode of Figures 4 and 5.

Figure 8 shows the corresponding one configuration of two adjustment springs 4, 4 'on one bar conductive 3 parallel next to each other than in principle each one looks like the one in Figure 1.

In turn, Figure 9 is distinguished in this way of realization. In this case the two ends 30, 32 of the bar Bent, U-shaped conductor 31 that is staggered in each case in the extreme areas perpendicularly penetrate each case a recess 7 in the first spring arms 6 of two adjusting springs 4, where adjusting springs 4 are supported On the steps. This variant offers the special advantage of that drivers do not have to go through the busbar 3 which makes connection even easier.

As you can recognize, it can be done easily also especially a passage connection for a terminal Step 3 that otherwise is not represented. For the rest, the configuration corresponds again to the configuration of Figure 1 and subsequent.

Figure 10 shows the configuration of others two connection devices with remote busbar inside a terminal case 19, where the terminal case 19 can perform an additional support function for devices of connection and where the conductive bar of the device connection located on the right in this Figure presents additionally a U-shaped accommodation space 33 (configured as deflection of the busbar) in the direction of introduction regarding the housing of the conductor end. Again, at least one of them serves here on the right side of the Figure or several souls 21 that cross the inside of loop 8 to support the spring or as a stirrup to define the adjusting spring 4 inside terminal housing 19 of material insulator and to ensure a smooth drive.

The variant of Figure 11 presents again a conductive bar 3 consisting of a metal strip that conducts well the electrical current that in its extreme zone towards the adjusting spring 4 is bent several times, especially in 90 °, such that a kind of space 36 is formed in the form of U at the end of the busbar 3. About this space in U shape is placed laterally (perpendicularly with with respect to the main extension plane of the busbar a then to U) an adjustment spring 4 according to the type of the Figure 1, so that the interior space of space 36 in shape of U serves as accommodation space for the driver to Introduce. The recess 7 may be penetrated from the side of the conductive bar 4 for a piece 35 of the conductive bar which makes it easy to establish the driver's contact or serves to establish contact in combination with terminal arm 9 of adjustment spring 4. Terminal arm 9 has two bends against the bending direction of the loop 8 that optimize this function.

This variant can be done very easily from the point of view of construction and yet presents Especially good connection characteristics.

All variants of the previous Figures and of the claims are appropriate in principle for the application inside or in housing of insulating material 19 of terminals for rail or other units and connection modules, for example, also for direct application on or inside devices electric of all kinds, such as relays and the like. All variants can also be made as connections multiple and bar geometries can also be performed additional conductors with the adjustment spring shown.

References

device of Connection

one

multiple connection

eleven'

end of driver

2

conductive bar

3, 3 ', 3' '

spring

4

Connection point

5

first arm of spring

6

recess

7

tie

8

terminal arm

9

parallel arms

10, 11

arch piece

12

bar arm conductive

14, 15

recess

16

bar piece conductive

17

bulge

18

material housing insulating

19

recess

twenty

soul

twenty-one

soul

22

hole of introduction

23a, b

screwdriver

24

bar arm conductive

25a, b, c

bulge

26

soul

27

fold

28

Union piece

29

extremes

30, 32

conductive bar

31

space of accommodation

33

support piece

3. 4

bar piece conductive

35

angle

α

Claims (18)

1. Connection device (1) to connect a conductor end (2) stripped with an adjustment spring (4) that acts as a compression spring on the conductor end to immobilize the conductor end (2) in a stirrup,

to)

 in where the adjustment spring (4) is configured such that the driver can be entered directly without tools drive inside the connection point (5),

b)

 in where the adjusting spring (4) has a first spring arm (6) which is provided with a recess (7) in the form of a window, Y

C)

wherein in the first spring arm (6) a closed loop (8) is then joined that ends in a conductive bar arm (9) that crosses the recess (7) in the form of a window, so that the end of conductor (2) that can be introduced from the side of the loop (8) into the recess (7) in the form of a window, can be immobilized and contacted as a stirrup without tools and by direct plug between the arm of the conductive bar (9) and a wall of the recess (7) shaped window or a conductive rod (3) traversing the recess, wherein

d)

 he first spring arm (6) with the recess (7) in the form of window is immobile arranged in a conductive bar (3) or other any element.

2. Connection device according to claim 1, characterized in that the first spring arm (6) is located at a distance from one arm of the conductive bar (25a). 3. Connection device according to claims 1 or 2, characterized in that the closed loop (2) also has two essentially parallel spring arms (10, 11) that are connected to each other through an arc piece (12), in where the parallel spring arms (10, 11) are oriented at an angle less than 45 ° with respect to the driver's direction of introduction, especially less than 30 ° with respect to the driver's direction (L). 4. Connection device according to any one of the preceding claims, characterized in that the conductive bar (3) has a recess (16 ') completely limited. 5. Connection device according to any one of the preceding claims, characterized in that the conductive bar (3 ') has a recess (16') open on one side. 6. Connection device according to any one of the preceding claims, characterized in that the adjustment spring (4) with its window-shaped recess (7) is placed on the conductive bar (3), such that its recess (7 ) is in line with the recess (16) of the conductive bar (3). 7. Connection device according to any one of the preceding claims, characterized in that the first spring arm (6) is oriented perpendicularly with respect to the recess (16) of the conductive bar (3) and because the conductive bar (3 ) penetrates the recess. 8. Connection device according to any one of the preceding claims, characterized in that the conductive bar (3) at its end has a step that narrows it on which the adjustment spring (4) rests with its recess (7). 9. Connection device according to any one of the preceding claims, characterized in that two or more of the adjustment springs (4) are arranged parallel to one another side by side, side by side. 10. Connection device according to any one of the preceding claims, characterized in that in a single conductive bar (3) they are arranged in series, one after another, two or more of the adjustment springs (4). 11. Connection device according to any one of the preceding claims, characterized in that the part of the conductive bar (3) is configured as a joint angle. 12. Connection device according to any one of the preceding claims, characterized in that the conductive bar (3) is configured as a stamped curved part. 13. Connection device according to any one of the preceding claims, characterized in that the first spring arm (6) is parallel at a distance with respect to one of the arms of the conductive bar (25a). 14. Connection device according to any one of the preceding claims, characterized by a configuration inside or in an electrical apparatus. 15. Connection device according to any one of the preceding claims, characterized by a configuration within a housing of insulating material (19) of a connection module, especially of a rail terminal. 16. Connection device according to any one of the preceding claims, characterized in that the conductive bar (3) is oriented perpendicularly with respect to the recess (7). 17. Connection device according to any one of the preceding claims, characterized in that the conductive bar (3) in its extreme area towards the adjusting spring (4) is bent several times especially in 90 °, such that a kind of U-shaped space (36) at the end of the conductive bar (3) on which one of the adjustment springs (4) is placed laterally, so that the U-shaped space (36) serves as a space for accommodation for drivers to introduce. 18. Connection device according to claim 17, characterized in that the recess (7) is crossed by a piece of conductive bar (35).