DE202019105429U1 - Contact device for producing an electrically conductive plug connection with a contact element - Google Patents

Abstract

Contact device (10) for producing an electrically conductive plug connection with a contact element (28), comprising
- a contact part (12);
- A contact lamella (14) arranged on the contact part (12) with at least two contact arcs (16, 18) arranged one behind the other in the longitudinal direction (x) of the contact device (10), which in the longitudinal direction (x) of the contact device (10 ) get between the contact part (12) and the contact element (28) while producing the electrically conductive plug connection and are compressed in the vertical direction (z) of the contact device (10);
- The contact lamella (14) is connected to the contact part (12) in a fixing area (32) arranged in the longitudinal direction (x) between the contact arches (16, 18), so that during the insertion movement (30) respective movements of the contact arches (16, 18) are decoupled from one another.

Description

Technical field

The present invention relates to a contact device for establishing an electrically conductive connection with a contact element.

State of the art

In automobiles, many electrically conductive connections between different current-carrying components usually have to be made. It is known per se to produce plug connections between components to be electrically connected to one another. It is essential here that a sufficiently high contact force between the components to be electrically connected to one another can be ensured. However, this cannot always be reliably ensured due to fluctuating boundary conditions, for example due to component tolerances and position tolerances.

Description of the invention

It is therefore the object of the invention to provide a solution by means of which sufficient contact forces can be ensured with an electrically conductive plug connection.

This object is achieved by a contact device for producing an electrically conductive plug connection with a contact element with the features of claim 1. Further possible configurations of the invention are specified in particular in the subclaims.

The contact device according to the invention for producing an electrically conductive plug connection with a contact element comprises a contact part and a contact lamella arranged on the contact part. The contact lamella has at least two contact arcs which are arranged one behind the other in the longitudinal direction of the contact device and which, during an insertion movement in the longitudinal direction of the contact device, get between the contact part and the contact element to produce the electrically conductive plug connection and are compressed in the vertical direction of the contact device. The contact lamella is connected to the contact part in a fixing region arranged in the longitudinal direction between the contact arcs, so that respective movements of the contact arches are decoupled from one another during the insertion movement.

The contact part and the contact lamella of the contact device can be part of a connector of the contact device. Likewise, the contact element can in turn be part of a connector that is compatible with it, so that the electrically conductive plug connection between the contact element and the contact arcs of the contact lamella can be produced by inserting the contact device in the manner described.

Before the contact arches come into contact with the contact element, the contact arches are still higher than a gap between the contact element and the contact part. When the insertion movement is carried out, the contact arc which is arranged closer to the contact element comes into contact with it. If the insertion movement continues, the other contact arc, which is further away from the contact element, also comes into contact with the contact element. The contact device is designed such that a distance or a gap between the contact part and the contact element remains at least substantially constant during the insertion movement. As a result, the contact arches are compressed in the vertical direction of the contact device during the insertion movement. A corresponding contact pressure or contact force between the contact element and the contact arcs can thereby be ensured.

After the electrically conductive plug connection has been established, that is to say the contact lamella with its contact arches has reached an intended insertion or contacting position, the compression of the contact arches and the resulting contact force between the contact arcs and the contact element can reliably ensure that there are no loose contacts a current can flow from the contact element via the respective contact arcs of the contact lamella to the contact part and vice versa.

Because the contact lamella is connected to the contact part in the fixing area arranged in the longitudinal direction between the contact arcs, it can be ensured during the insertion movement that respective movements or deformations of the contact arches are decoupled from one another. In particular, in the vertical direction of the contact device, it can thus be ensured during the insertion movement that both contact arcs are compressed in the same manner in the vertical direction, so that when the intended insertion or contact position is reached, at least essentially the same contact forces prevail between the contact element and the contact arcs , By said fixing of the contact lamella in the fixing area on the contact part, it can be prevented, for example, that the other contact sheet is deformed or moved during the insertion movement by upsetting the contact sheet that first comes into contact with the contact element in such a way that it is moved with less Contact force is applied to the contact element or not at all. Instead, it can be ensured in the case of the contact device according to the invention that at least substantially the same contact forces prevail between the contact arcs and the contact element after the electrically conductive plug connection has been produced, and thus a current can also flow reliably from the contact element via both contact arcs.

A possible embodiment of the invention provides that the contact lamella is positively connected to the contact part in the fixing area. The form fit can be such that a relative movement of the contact lamella in the fixing area relative to the contact part is prevented in all spatial directions. The positive connection with the contact part can ensure that respective movements or deformations of the contact arcs are decoupled from one another during the insertion movement.

Another possible embodiment of the invention provides that the contact lamella is integrally connected to the contact part in the fixing area. Relative movements of the fixing area to the contact part in all spatial directions can thereby be prevented. Thanks to the integral connection, a permanently reliable current flow can also be achieved via the fixing area.

Another possible embodiment of the invention provides that the contact lamella is attached to the contact part in the area of a first longitudinal end in the form of a floating bearing. The contact lamella should be fixed laterally and in height, but should be able to move in the longitudinal direction. If there is a fixed bearing in the fixing area, it is advantageous if the contact lamella is otherwise fixed by means of floating bearings which permit longitudinal displacement. However, it is also possible for the contact lamella to be fixed with a fixed bearing in the region of the first longitudinal end.

According to a further possible embodiment of the invention, it is provided that the contact lamella is fastened to the contact part in the region of the second longitudinal end in the form of a floating bearing. The contact lamella can therefore be moved in the region of its second longitudinal end at least in one spatial direction relative to the contact part. For example, it can be provided that the contact lamella can be moved in the region of the first longitudinal end in the longitudinal direction of the contact device relative to the contact part, whereas movements of the contact lamella in the vertical and / or transverse direction relative to the contact part are prevented. In particular, in combination of the floating bearing and fixed bearing, it can be ensured, on the one hand, that the contact lamella remains reliably fixed to the contact part, while, on the other hand, it can be ensured that, during the insertion movement and the compression of the contact arches, any length compensation that may be required can take place in the contact lamella.

Another possible embodiment of the invention provides that the contact part is a sheet metal. The contact part can, for example, be made of a particularly good electrically conductive material, such as a copper alloy or the like. In other words, the contact part can be a contact plate which conducts electricity particularly well.

Another possible embodiment of the invention provides that the contact lamella is a sheet metal. The contact lamella can be produced, for example, by a bending process or also by a stamping and bending process. The contact lamella can be made of spring steel, for example, so that sufficiently large contact forces can be realized between the contact lamella, in particular between the respective contact arcs and the contact element. The contact lamella can also be made of a copper alloy or the like, for example, so that the contact lamella can conduct electricity particularly well. Another variant would be a bi-metal sheet that combines good conductivity and sufficiently large contact forces.

Finally, a further possible embodiment of the invention provides that the contact element is a contact knife. The contact element can in particular be an elongated contact element, so that contacting of both contact arcs can be ensured during the insertion movement or after the insertion movement has been completed.

Further advantages, features and details of the invention can be derived from the following description of possible exemplary embodiments and from the drawing. The features and combinations of features mentioned above in the description and the features and combinations of features shown below in the description of the figures and / or in the figures alone can be used not only in the combination indicated in each case, but also in other combinations or on their own, without the scope of the invention to leave.

list of figures

• 1 Eine Seitenansicht einer Kontaktvorrichtung, welche ein Kontaktblech und darüber eine Kontaktlamelle aufweist, wobei zudem links oben noch schematisch ein Kontaktmesser dargestellt ist;
• 2 eine weitere Seitenansicht der Kontaktvorrichtung, nachdem eine elektrisch leitende Steckverbindung mit dem Kontaktmesser hergestellt wurde, wonach die Kontaktlamelle zwischen dem Kontaktmesser und dem Kontaktblech eingeklemmt wird.

The drawing shows in:

• 1 A side view of a contact device, which has a contact plate and above a contact lamella, a contact knife is also shown schematically above left;
• 2 a further side view of the contact device after an electrically conductive plug connection has been established with the contact knife, after which the contact lamella is clamped between the contact knife and the contact plate.

Identical or functionally identical elements have been provided with the same reference symbols in the figures.

A contact device 10 is in a side view in 1 shown. The contact device 10 includes one as a contact plate 12 trained contact part. According to the present illustration is above the contact plate 12 a contact lamella 14 appropriate. The contact lamella 14 includes two in the longitudinal direction x the contact device arranged one behind the other contact sheets 16 . 18 , Both the contact plate 12 as well as the contact lamella 14 are made of materials with good electrical conductivity, such as a copper alloy or other current-conducting alloys or metals. The contact plate 12 and the contact lamella 14 can be part of a connector, not shown.

The contact lamella 14 is in the area of a first longitudinal end 20 in the form of a schematically indicated floating bearing 22 on the contact plate 12 attached. The floating camp 22 thus prevents relative movements of the contact lamella 14 to the contact plate 12 in all spatial directions except for the longitudinal direction x , In the area of a second longitudinal end 24 is the contact lamella 14 in the form of a floating bearing 26 on the contact plate 12 attached. The contact lamella 14 can thus move in the longitudinal direction x relative to the contact plate 12 move, but will be especially in the vertical direction z on the contact plate 12 fixed. The contact plate 12 can have, for example, a through opening, which cannot be seen in more detail, through which the contact lamella 14 with its second longitudinal end 24 can be threaded through and hooked.

Top left in 1 is still a contact knife 28 shown schematically and partially. The contact device 10 is designed to provide an electrically conductive plug connection with the contact knife serving as a contact element 28 manufacture. The contact knife 28 can for example be part of a connector shown in more detail here, which with the already mentioned connector of the contact device 10 can be compatible.

As can be seen, there is a distance between the contact knife 28 and the contact plate 12 less than a respective height of the contact sheets 16 . 18 , When the contact device is inserted 10 in the one with the arrow 30 marked insertion direction are the contact sheets 16 . 18 in the vertical direction z compressed as soon as this under the contact knife 28 reach. The distance remains in the vertical direction during the insertion process z between the contact plate 12 and the contact knife 28 at least essentially unchanged. The contact plate 12 and the contact knife 28 can be attached to other components not recognizable here.

In 2 are the contact device 10 and the contact knife 28 again shown in a side view, the contact device and the contact knife 28 are shown in an intended end position or contact position, in which said electrically conductive plug connection between the contact device 10 and the contact knife 28 was produced. During the insertion movement in the longitudinal direction x the contact device 10 came both contact sheets 16 . 18 under the contact knife 28 and were thereby between the contact knife 28 and the contact plate 12 trapped. As a result, the contact sheets 16 . 18 in the vertical direction z compressed, so that a respective contact force between the contact arcs 16 . 18 and the contact knife 28 will be produced. It is desirable that between the respective contact sheets 16 . 18 and the contact knife 28 at least essentially the same contact forces act, so that reliable current from the contact knife 28 over both contact sheets 16 . 18 to the contact plate 12 can flow.

The contact lamella 14 is in a longitudinal direction x between the contact sheets 16 . 18 arranged fixing area 32 with the contact plate serving as the contact part 12 connected so that during the insertion movement respective movements of the contact sheets 16 . 18 are decoupled from each other. Although initially only the contact sheet during the insertion movement 16 with the contact knife 28 comes into contact through the fixation of the fixation area 32 on the contact plate 12 prevents the contact sheet 18 for example downwards in the direction of the contact plate 12 is pressed or moved. Because respective movements or deformations of the contact arches 16 . 18 by fixing the contact lamella 14 in the fixing area 32 decoupled from each other. Deformation and / or movement of the contact sheet 16 therefore does not cause any deformation or movement of the contact sheet 18 , Now reaches the contact sheet during the insertion movement 18 in contact with the contact knife 28 , so the contact sheet 18 at least essentially the same as the contact sheet 16 in the vertical direction z compressed so that between the respective contact sheets 16 . 18 and the contact knife 28 at least essentially the same contact forces act.

The contact lamella 14 can in the fixing area 32 for example, form-fitting with the contact plate 12 be connected. The positive connection can be achieved, for example, by means of a fixing element which is only indicated schematically here 34 can be realized, which can be, for example, a rivet or the like. Alternatively or additionally, it can also be provided that the contact lamella 14 in the fixing area 32 integrally with the contact plate serving as the contact part 12 connected is. For example, the fixing area 32 the contact lamella 14 with the contact plate 12 be welded. So can over the fusing area 32 also a current reliably to the contact plate 12 flow. The contact lamella 14 is in the fixing area in the example shown here 32 by a fixed bearing, realized by the fixing element 34 , stored on the contact plate.

Alternatively, it is also possible for the contact lamella 14 at one or both longitudinal ends 20 . 24 is fixed by fixed bearings. When contacting the contact lamella 14 so this would be in the vertical direction z could also be compressed in the longitudinal direction x however, do not slip. This could result in even higher contact forces than in the variant with the two floating bearings 22 . 26 be achieved.

By said fixation in the fixation area 32 So it can be ensured that the contact sheets 16 . 18 do not influence each other during the insertion movement, so that after the insertion movement ends, each contact sheet 16 . 18 at least essentially the same contact pressure on the contact knife 28 exercises.

LIST OF REFERENCE NUMBERS

10

contact device

12

contact sheet

14

Multilam

16

contact sheet

18

contact sheet

20

first longitudinal end of the contact lamella

22

movable bearing

24

second longitudinal end of the contact lamella

26

movable bearing

28

contact blade

30

insertion movement

32

Fixing area of the contact lamella

34

fixing

x

longitudinal direction

z

vertical direction

Claims (9)

Contact device (10) for producing an electrically conductive plug connection with a contact element (28), comprising - a contact part (12); - A contact lamella (14) arranged on the contact part (12) with at least two contact arcs (16, 18) arranged one behind the other in the longitudinal direction (x) of the contact device (10), which in the longitudinal direction (x) of the contact device (10 ) get between the contact part (12) and the contact element (28) while producing the electrically conductive plug connection and are compressed in the vertical direction (z) of the contact device (10); - The contact lamella (14) is connected to the contact part (12) in a fixing area (32) arranged in the longitudinal direction (x) between the contact arches (16, 18), so that during the insertion movement (30) respective movements of the contact arches (16, 18) are decoupled from one another. Contact device (10) after Claim 1 , characterized in that the contact lamella (14) is positively connected to the contact part (12) in the fixing area (32). Contact device (10) after Claim 1 or 2 , characterized in that the contact lamella (14) is integrally connected to the contact part (12) in the fixing area (32). Contact device (10) according to one of the preceding claims, characterized in that the contact lamella (20) is fastened to the contact part (12) in the region of a first longitudinal end (20) in the form of a floating bearing (22). Contact device (10) according to one of the preceding claims, characterized in that the contact lamella (24) is fastened to the contact part (12) in the region of a second longitudinal end (24) in the form of a floating bearing (26). Contact device (10) according to one of the preceding claims, characterized in that the contact part (12) is a sheet metal. Contact device (10) according to one of the preceding claims, characterized in that the contact lamella (14) is a sheet metal. Contact device (10) according to one of the preceding claims, characterized in that the contact element (28) is a contact knife. Contact device (10) according to one of the preceding claims, characterized in that the contact lamella (14) is a bimetallic sheet.

Images