EP2256870A1 - Connector for transferring high electric loads - Google Patents

Abstract

The connector has a housing and a plug face with electrically conducting contacts that are designed to contact corresponding contacts of another plug-in connector. The conducting contacts are connected with conductor ends of conductors in a conductive manner. The conductors and the conducting contacts are pre-mounted at a framework (11), where the framework is inserted into the housing in a pre-mounted condition. The contacts are formed as contact bushes and comprise a crimping section and a contact section.

Description

The invention relates to a connector with a housing and with a mating face with electrically conductive contacts, which are adapted to contact corresponding contacts of a corresponding connector, and which are conductively connected to conductor ends of lines.

To transmit high power, it is necessary to design connectors such that it is most likely to ensure that the conductors and the contacts of the connector by mounting the housing does not bend, twist or move or even solve contacts. In addition, the contacting of any umbrellas of the ladder is an insufficiently solved problem.

Against this background, it is the object of the invention to solve the first problem mentioned above. According to a preferred embodiment, a connector is to be created in which the further problem is solved.

The invention solves the stated objects by the subject matter of claim 1.

According to the subject matter of claim 1, the connector is characterized by a frame on which the conductors and the contacts are preassembled and which can be inserted in the preassembled state in the housing.

The frame initially forms or limits a stable mounting space in which the conductors and the contacts can be connected together. Optionally, if necessary, a screen in the frame is also conductively connected to a screen contacting device. Only then is the thus preassembled unit inserted into the housing or the housing is preferably pushed onto the frame. The frame prevents the elements pre-assembled in or on the frame from becoming crazy or damaged during assembly of the housing.

In particular, in the frame, the wires of the lines are connected to the contacts. Optionally, also in the frame is the shield contacting device arranged to contact one or more screens of the conductors.

It is expedient if the housing is a circumferentially closed sleeve with a preferably rectangular cross-section. This sleeve is also preferably laterally open at its two axial ends and slidable on the frame.

According to a preferred variant, the frame has two base plates which are aligned parallel to one another and connected to one another by means of bolts in the region of their corners. This frame is designed stably and can be assembled when mounting the connector with simple means.

With regard to the shield-contacting device according to an advantageous embodiment but also provided as an independently contemplated invention that this preferably has contact webs which rest on the outside of the screen, wherein the conductors and the contact webs of fasteners such as preferably metallic screw-type hose clamps or metal Cable ties are restrained, with which the contact webs are pressed against the screens of the ladder. It is also particularly advantageous if the shield contacting device has a shield plate with the contact webs.

The shield contacting device makes it possible in a simple manner to contact the screen safely and quickly in such a way that the conductive connection is also suitable for the temporary dissipation of higher powers.

Advantageous embodiments of the invention can be found in the dependent claims.

Fig. 1

eine perspektivische Ansicht einer Steckverbindung mit zwei zusam- mengesteckten Steckverbindern;

Fig. 2

eine perspektivische Ansicht von drei Leitungen mit Kontakten;

Fig. 3

eine perspektivische Ansicht eines Teil eines Rahmens;

Fig. 4

die Anordnung aus Fig. 3 mit drei Leitungen;

Fig. 5

eine vormontierte Einheit aus einem Rahmen mit drei Leitungen;

Fig. 6

eine weitere Ansicht der vormontierten Einheit aus auf Fig. 5 vor dem Festschrauben der Kabelverschraubungen;

Fig. 7

eine teilgeschnittene Ansicht des Rahmens; und

Fig. 8

eine weitere perspektivische Ansicht des Rahmens;

Fig. 9a -c

verschiedene Ansichten von Elementen einer Kodiervorrichtung im Bereich des Steckgesichtes des Steckverbinders;

Fig. 10a -c

verschiedene Ansichten von Elementen einer Kodiervorrichtung im Bereich des Steckgesichtes des korrespondierenden Steckverbinders;

Fig. 11, 12

zusammensteckbare Kontakte für die beiden Steckverbinder aus Fig. 1;

Fig. 13

eine perspektivische Ansicht des Gehäuses;

Fig. 14

den fertig montierten Steckverbinder mit Gehäuse;

Fig. 15 a-d

verschiedene Ansichten eines weiteren Steckverbinders im teilmon- tierten und im montierten Zustand; und

Fig. 16 a-d

verschiedene Ansichten eines weiteren mit Fig. 15 zusammensteckba- ren Steckverbinders im teilmontierten und im montierten Zustand.

The invention will be described in more detail with reference to the drawing with reference to an embodiment. It shows:

Fig. 1

a perspective view of a connector with two mating connectors;

Fig. 2

a perspective view of three lines with contacts;

Fig. 3

a perspective view of a part of a frame;

Fig. 4

the arrangement Fig. 3 with three wires;

Fig. 5

a preassembled unit of a frame with three lines;

Fig. 6

another view of the preassembled unit out Fig. 5 before tightening the cable glands;

Fig. 7

a partially sectioned view of the frame; and

Fig. 8

another perspective view of the frame;

Fig. 9a-c

various views of elements of a coding device in the region of the mating face of the connector;

Fig. 10a-c

various views of elements of a coding device in the region of the mating face of the corresponding connector;

Fig. 11, 12th

mating contacts for the two connectors off Fig. 1 ;

Fig. 13

a perspective view of the housing;

Fig. 14

the fully assembled connector with housing;

Fig. 15 ad

different views of another connector in partially mounted and assembled state; and

Fig. 16 ad

different views of another with Fig. 15 plug-in connector in partially assembled and assembled state.

Fig. 1 discloses a plug connection with a first connector 1 with electrically conductive contacts (contact sleeves 2) (see, eg FIGS. 2 and 3 and 11 ), the corresponding contacts (see, for example, the contact sleeves 2 '; Fig. 12 ) of a corresponding connector 3 contact.

To Fig. 2 . 11 and 12 the contacts 2 are each formed sleeve-like plugged together. They are of contact sleeves 2, 2 '( Fig. 11, 12th ) are formed, which are applied for example in the manner of crimp sleeves in a section on a stripped in an end region line 4. The corresponding plug connector can have corresponding contact sleeves 2 '( Fig. 12 ). The corresponding contact sleeves 2, 2 '(see FIGS. 11 and 12 ) of the corresponding connector may be formed integrally or in several pieces and a crimp section 2a, 2b and a contact portion 2a ', 2b' have.

To the connector 1 three lines 4 are exemplified here. However, this number of lines 4 is to be regarded as purely exemplary.

The lines 4 are preferably those with a single or multi-core conductor core 5 with a relatively large cross-section, which are suitable for the transmission of high power, as required for example for supplying electric motors for driving rail vehicles (for example more as 500A current and more than 1kV voltage).

According to the illustrated embodiment, each line 4 each have a line core 5, a surrounding the line core 5 insulation 6, a surrounding the insulation screen 7 (preferably in the manner of a braided shield) and an outer jacket 8 (see Fig. 2 ).

The layers surrounding the line core 5 are offset or removed in different axial length at the end of the conductor 4, so that it is possible to provide the line core 5 with the contact sleeve 2 and the screen 7 thereof electrically conductively separated on a screen contacting device. 9 of the connector 1 (see Fig. 3 and 4 ).

For prefabrication, the contact sleeve 2 is first applied to the line core 5 and a cable gland 10 is pushed onto the conductor end ( Fig. 2 ).

Due to the high power to be transmitted, it is necessary to design the connector 1 in such a way that errors are excluded as possible during its assembly.

In addition, the screen 7 should preferably be contacted in such a way that, on the one hand, it is easy to contact, but on the other hand, it is also suitable for dissipating higher powers for a predefined period of time.

These requirements fulfilled the connector 1 according to the invention in a simple manner by the following means.

The connector 1 has a frame 11 (FIG. Fig. 8 ), which is designed such that the line 4 and the cable shield are finally mounted or contacted on it before a housing 12 is mounted on the frame 11. In this way, it is possible to first create a preassembled unit whose configuration is error-free. This is also visually easily verifiable. Only then is the housing 12 mounted.

In this case 12 is after Fig. 13 a circumferentially closed sleeve having a preferably rectangular cross-section which is laterally open at its two axial ends and which can be slid over the frame 11.

The frame 11 has two base plates 13, 14, which here have a rectangular basic shape.

These base plates 13, 14 are aligned parallel to each other by means of bolts 15, 16, 17, 18 connected in the region of their corners. Here, the bolts 15 to 18 each have internal threaded holes 20 in which corresponding screws 19 are screwed (see Fig. 6 ).

First, the bolts 15, 16, 17, 18 mounted on the base plate 13, which on the actual mating face 21 (FIG. Fig. 6 ) facing away from the end of the connector are arranged.

The base plate 13 has openings for the passage of the lines 4 with the contact sleeves 2. At the openings of the base plate 13 can with threaded sleeves and nuts ( Fig. 4 and 5 and 6) a cable gland 10 can be realized. The base plate 14 (and also the base plate 13) may be cut from a sheet and have angled side portions. The base plates 13, 14 may also consist of a material.

On the base plate 13 is parallel to this in the interior of the volume defined by the frame 11 or space a shield plate 22 is attached. Here this fastening is realized by means of screws 23, which pass through slots 24 on the shield plate 22, so that it can be optimally aligned. The shield plate 24 lies here on one side of the three lines 4 (FIG. Fig. 6 ).

From the shield plate contact webs 25 are bent, in this case at right angles so that they extend parallel to the lines 4, which in the frame 11 are inserted. Here is a number of lines 4 and to be contacted umbrellas 7 corresponding number of contact webs 25 is provided.

Each contact land is sized and the line 4 is stripped so that the contact web 25 (which may be angled at the end) can abut the respective screen 7. In order to ensure good electrical contact, the lines 4 and the contact webs 21 surround together fastening means such as preferably screw-type metal hose clamps 30 (or cable ties) with which the contact webs 25 are pressed against the screens 7 of the conductors.

It is thus possible in a particularly simple manner, the screens 7 of the lines 4 safely and easily to contact.

The lines 4 with the contact sleeves 2 are inserted in axially in insulating sleeves 26, in which they are fixed in an axial position, for example, are latched (see Fig. 7 ).

These insulating sleeves 26 are inserted axially into the plate 14 on the mating face 21. Each of the insulating sleeves 26 preferably has, in sections, an outer circumferential profile, for example an external hexagonal profile 37, which can be inserted into a corresponding inner contour of corresponding openings in the plate 14 ( Fig. 7 . 8th and in particular 9 and 10).

Then the insulating sleeve 26 is fixed to the plate 14 with a fixing ring 31 (eg with a spring ring) ( Fig. 8 ). The insulating sleeves with the contact sleeves 2 are fixed to the plate 14 ( Fig. 8 . 9 . 10 )

The insulating sleeves 26 have on their inner circumference in their area protruding from the plate 14 coding means such as Kodierstege 27 a (first connector; Fig. 10 and 1 ) or corresponding coding grooves 27b (corresponding connector, Fig. 9 and 2 ) on.

The insulating sleeves 26 are inserted in six different positions in the plate 14 due to their hexagonal profile and can be fixed to this with the fixing ring 31.

These positions are easily distinguishable by means of markings 28 on the plate 14.

The fixing rings 31 may advantageously have neck contours for tools such as recesses / grooves 29 ( Fig. 9 ).

This ensures that the connectors can not be put together twisted.

The corresponding connector is down to the contact sleeves 2 '() Fig. 12 ) and the corresponding coding means ( Fig. 11 ) (preferably largely or accurately) designed as the connector described above.

First, the frame 11 with the in Fig. 8 Pre-assembled components shown. Only then, the housing 12 is pushed here from the side of the plate 14 ago ( Fig. 13, 14th ).

Preferably, the plate 13 is dimensioned such that it rests against the peripheral edge of the housing 12 at its in the mounted state on a step 38, optionally provided with a peripheral seal ( Fig. 8 ).

Here, the housing 12 and the plate 13 are respectively screwed together to corresponding screw connection means such as webs 32 with holes 33 and screws 36, which connects the entire frame 11 with both plates 13, 14 and the housing 12 stably. Due to the stable frame 11 ensures that when sliding the housing 12 on the frame 11, the components in the interior of the frame 11 can not move or can be damaged.

The housing preferably extends from the plate 13 to the plate 14 on the mating face, which is bordered on its outer periphery by the housing.

On the housing 13 projections 34 may be formed with holes 35 to the two connectors in the mated condition with corresponding screws 39 (FIGS. Fig. 1 ) to screw together.

An attachable to the housing with screws 41 mounting base 40 is used to fix the connector 1 to a pad.

Fig. 15 ad show different views of another connector in the partially assembled and in the assembled state and Fig. 16 ad different views of another with Fig. 15 plug-in connector in partially assembled and assembled state. In each case four lines can be connected to these two connectors and not just three in each case as in the variants described above. The complete frame 11 is not recognizable but is present in the housing 12. The further line 40 can also serve, for example, as a ground conductor connection, which then may not be shielded. It can be seen that the number of leads that can be connected can be varied if the baseplates are provided with a corresponding number of openings.

reference numeral

Connectors

1

contacts

2

Connectors

3

ladder

4

cable core

5

insulation

6

umbrella

7

coat

8th

Screen contacting

9

Cable gland

10

frame

11

casing

12

baseplates

13, 14

bolt

15, 16, 17, 18

screw

19

Internally threaded bores

20

mating face

21

faceplate

22

screw

23

slots

24

contact bars

25

Bushings

26

keying

27

marks

28

groove

29

Screw clamps

30

fixing

31

recesses

32

drilling

33

approaches

34

drilling

35

screw

36

External hexagonal profile

37

gradation

38

screw

39

foot

40

screw

41

Claims (13)

A connector comprising a housing (12) and a mating face with electrically conductive contacts (2) adapted to contact corresponding contacts of a corresponding connector (3) and which are conductively connected to conductor ends of lines, characterized by a frame (Fig. 11), to which the lines (4) and the contacts (2) are preassembled and which can be inserted in the preassembled state in the housing (12). Connector according to claim 1, characterized in that in the frame (11) the conductor wires (5) of the lines (4) are conductively connected to the contacts (2). Connector according to claim 2, characterized in that the contacts (2) are designed as contact sleeves, which have a crimp portion and a contact portion. Connector according to one of the preceding claims, characterized in that in the frame (11) a shield contacting device (9) for contacting one or more screens (7) of the lines (4) is arranged. Connector according to one of the preceding claims, characterized in that the lines (4) and the contacts (2) and the Schirm-contacting device for contacting the screen form the preassemblable with the frame unit, which as a whole in the housing (12) can be inserted , Connector according to one of the preceding claims, characterized in that the housing (12) is a circumferentially closed sleeve having a preferably rectangular cross-section which is laterally open at its two axial ends and which on the frame (11) can be pushed. Connector according to one of the preceding claims, characterized in that the frame (11) has two base plates (13, 14) which are parallel are aligned with each other and by means of bolts (15, 16, 17, 18) are interconnected in the region of their corners. Connector according to one of the preceding claims, characterized in that it comprises a shield contacting device (9) having contact webs (25) which rest against the outside of the screen, wherein the lines (4) and the contact webs (21) fastening means such as preferably metallic Include screw-type hose clamps (30), with which the contact webs (25) to the screens (7) of the line (s) are pressed. Connector according to claim 8, characterized in that the screen-contacting device comprises a shield plate (22) with the contact webs (25). Connector according to one of the preceding claims, characterized in that the plug face (21) lying towards the plate (14) of the contacts (2) is penetrated, and that these contacts (2) one or more insulating sleeves (26) enforce, which with Coding means are provided. Connector according to one of the preceding claims, characterized in that the coding means have a non-circular outer contour - in particular an outer polygon - on the insulating sleeves and a corresponding non-circular inner contour - in particular a polygonal socket - on the plate (14). Connector according to one of the preceding claims, characterized in that the coding means have an outer polygon on the insulating sleeves and a corresponding polygonal socket on the plate (14). Connector according to one of the preceding claims, characterized in that the coding means further comprise a coding on the plate (14).

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