DE102007009562A1 - High-current plug-in contact and high-current plug-in device - Google Patents

Abstract

The high current plug contact (1) is electrically connected with a female contact element (2) containing plug-in opening (4), a conductor (9) comprising conducting layer. A sleeve shaped casing (13) covering a female contact element, which is accommodated between the female contact element and sleeve shaped shroud (21), and is arranged with an axial gap to the female contact element. The support sleeve (24) envelops the conductor coaxially around a section of conductor shielding (26).

Description

The The invention relates to a high current contact according to claim 1 and a high-current plug-in device with at least one such High current contact according to claim 11.

On the technical field of electrical contacting of electrical and / or electronic devices for realizing a (Partial) electric drive, in particular a hybrid drive in Vehicles are due to the high performance requirements and The harsh environmental conditions so far only in individual cases Plug connector used. With the few known connectors These are application-specific developments, which because of the high demands on electrical shielding and the seal against media, especially towards Moisture, difficult or impossible to further applications can be adapted in the vehicle.

Of the Invention is therefore based on the object, an alternative plug contact for high-current applications to propose, on the one hand with equipped with a high electrical shield and the other hand, possibly after a slight modification, for the various contacting tasks, especially in vehicles with an electric or electric assisted drive can be used. In particular, the high current plug contact as scalable component can be used in high-current plug-in devices be. Furthermore, the object is a scalable high-current plug-in device to propose with at least one high current plug contact.

These Task is with regard to the high current plug contact with the features of claim 1 and with regard to the high-current plug-in device solved with the features of claim 11. advantageous Further developments of the invention are in the subclaims specified. The scope of the invention also includes all Combinations of at least two of in the description, the claims and / or the figures reproduced features.

Of the Invention is based on the idea, a preferred at least approximately cylindrical high current plug contact with a female contact element for contacting an interface to propose, in which the socket contact element at least partially, preferably completely, from a sleeve-shaped Envelope is surrounded, being radially outside the casing has an axially extending, sleeve-shaped shield plate is provided, which by Crimping with axial distance to the radially inner socket contact element with the cable shield of the socket contact element contacting Line is connected. The wrapping has one hand the function to fix the socket contact element and the with this produced electrical connection, in particular against vibrations, to protect and on the other hand electrical insulation the socket contact element with respect to the electrically conductive To ensure shielding plate. To those for crimping of the sleeve-shaped shielding plate with the radial within cable shielding, preferably as braided shield is designed to ensure is one providing the counterforce Support sleeve provided. This is coaxial with the arranged the socket contact element contacting line, wherein the Cable shield folded around the support sleeve is, so sandwiched between the shroud and the support sleeve is included. In addition, the support sleeve prevents a disadvantageous for the Vercrimpungsprozess sinking the cable shield in an intermediate insulation of the line, the which surrounds at least one current-carrying wire of the line. Due to the crimping of the cable shielding with the shielding plate On the one hand, the mechanical stability of the high-current plug-in contact improved and on the other hand a good transfer of the shield of the line on the shroud guaranteed. Of the Shield sheet, in turn, as explained later will be the shielding to the interface to be contacted passed. The support sleeve in turn is located radially outside either on the outer insulation of the pipe and / or on the exposed cable shield. The described High current plug contact ensures optimum shielding to improve the EMC due to the sleeve-shaped Shielding plate and the optimal screen transmission from the cable shielding to the shield plate in an axially offset to the socket contact element Crimpungsbereich. Furthermore, any number of the described high-current plug contacts in a surrounding housing as a high-current plug-in device, creating a variety be met by different application requirements can. Under high current in the context of the invention are electrical Currents with a current of more than 60 A, in particular of about 100 A or above.

In Embodiment of the invention is provided with advantage that the High current plug contact is cylindrical. This makes a difference the high current plug contact of a variety of particular L-shaped High current plug contacts from the prior art. The administration is on the insertion of the female contact element opposite side into the high current plug contact to Contacting the socket contact element led into it.

From It is particularly advantageous if the surrounding the socket contact element Coating as encapsulation, d. H. by encapsulation of the female contact element, preferably formed of an electrically insulating plastic is. In particular, by the choice of an encapsulation as a cladding is an optimal, shape-dependent mechanical fixation of the Socket contact element ensured throughout the high-current plug-in contact. The choice of electrically insulating plastic is additional the insulation of the socket contact and preferably also the otherwise ensured exposed connection area.

When Alternatively, it is conceivable, the sheath casing, in particular from injection molded parts, wherein the shell parts are preferably locked together. To ensure a mechanical Fixing the female contact element, it is advantageous if the thus formed enclosure with radial stops or Radial fixations for the recorded socket contact element is provided. Preference is also given to such an embodiment the wrapping, d. H. the at least two shell parts, formed of an electrically insulating plastic.

In Further development of the invention is provided with advantage that the support sleeve for their fixation, preferably with axial distance to the crimping point of the shroud, crimped with the cable shielding with the lead is. Preference is given to the, in particular made of metal support sleeve doing so with the outer jacket insulation of the line crimped. Also conceivable is an embodiment in which the support sleeve not or only with a Axialabschitt is crimped with the outer jacket insulation and otherwise rests directly on the cable shield and thus, in the latter case, both with the line shield as well an intermediate insulation of the line is crimped. Especially for preventing the ingress of media into the area of the female contact element it is advantageous if the, in particular as encapsulation or Shell component trained envelope in the axial direction over the female contact element is led out and radially outside of the at least one core surrounding intermediate insulation the line is applied. In particular, thus, in the axial direction exposed and contacted with the socket contact element wire isolated, allowing an (accidental) contacting of the outer Shielding sheet is safely avoided.

Prefers the socket contact element comprises a so-called Radsok contact, available in different sizes is. By means of a Radsok contact can be a vibration insensitive Contacting an interface, in particular a contact gin, be ensured.

From Advantage is an embodiment in which the shroud not directly with a shielding of the contacting interface contacted, d. H. not directly attached to this, but that to ensure a reliable screen transfer an abutting on the shield plate shield ring is provided. This Umbrella ring contributes among other things to the mechanical stabilization the shield plate in the area of its front page and cares about it In addition, for a secure contacting of the shield Interface.

With Advantage of the shield ring comprises a sleeve-shaped Section that is radially between the shield plate and the cladding is recorded, in particular clamped between these components.

The Actual contacting of the interface takes place via a lamellar portion of the shroud, the back to the Front side of the shielding plate is bent over and in the radial direction is resilient. Preferably, the fin section takes that Shield plate clamped. The contacting of the interface takes place with the radially outer surface of the a portion of the shielding plate surrounding lamella portion of the shield ring.

object The invention is also a high-current plug-in device with at least a previously described high-current plug-in contact, wherein the at least a high-current plug contact surrounded by a protective housing is. Preferably, the protective housing is formed as encapsulation. Essential is that the protective or surrounding housing from an electric insulating material is formed. Alternatively, it is conceivable the protective housing in shell construction, especially with two interlockable shell elements, form. The High-current plug-in device can, if required, with additional functionalities, such as a pilot contact. The inventive High current plug-in device is characterized by being scalable is, d. H. with almost any number of high current plug contacts can be produced or equipped. It is also conceivable Provide plug contacts in different sizes.

In a further development of the invention, it is ensured that the protective housing is sealed off from its surroundings, in particular for preventing the entry of liquids. An advantage here is an embodiment in which the seal is formed by the protective housing itself. For this purpose, it is advantageous to select for the protective housing forming encapsulation a material that connects to the outer jacket insulation of the line of the high-current plug-in contact. The Abdich tion is preferably carried out by a fusion of Umspritzungsmaterials with the insulation material of the line. Alternatively, it is conceivable to use a single or group seal to seal the line input. Sealing effect is achieved by pressing the seal. In this case, the outer diameter of the seal used is preferably greater than the diameter of the mounting opening receiving the seal. Additionally or alternatively, the inner diameter of the seal used may be less than the outer diameter of the conduit. The at least one seal used is preferably a lamellar seal with a plurality of lamellae arranged axially next to one another and each extending in the circumferential direction. Such a lamellar seal acts as a labyrinth seal, which reliably prevents the ingress of media, in particular even if individual lamellae should be damaged.

Of Another is an embodiment of advantage in which is dispensed with a separate seal and the sealing function taken from the support sleeve and the shield plate become. In this embodiment, it is conceivable that media can penetrate into the protective housing, However, an advance to the actual socket contact is by the tight connection of the support sleeve to the line on the one hand and the tight connection of the shield plate to the support sleeve prevented on the other hand.

Further Advantages, features and details of the invention will become apparent the following description of preferred embodiments as well as from the drawings; these show in:

1 a sectional perspective view of a high-current contact, in which, for clarity, a shield ring for transferring the shield has been omitted to an interface,

2 a sectional view of a portion of the high-current plug contact according to 1 .

3a a side view of a high current plug contact with shield ring,

3b a perspective view of the shield ring in isolation,

4a a perspective view of a three-pole high-current connector with three high-current plug contacts and

4b a perspective view of one of the high-current plug-in device according to 4a used for use Lamella seal.

In The figures are the same components and components with the same Function marked with the same reference numerals.

In 1 For example, a high current plug contact for contacting applications with currents between about 60 A and about 150 A is shown.

The sleeve-shaped high current plug contact 1 comprises as a core element a socket contact element 2 with a sleeve-shaped Radsok contact, for example, in the German application DE 10 2005 013 633.8 is described. The Radsok contact 3 forms an end insertion opening 4 of the socket contact element 2 , Furthermore, the socket contact element comprises 2 a metallic holding element 5 with two opposite blind holes 6 . 7 , wherein the right in the plane of the blind hole has a smaller inner diameter than the Radsok contact receiving blind hole 6 ,

In the blind hole 7 is the only centric vein in the axial direction 8th a line 9 led in and with the holding element 5 and thus also with the Radsok contact 3 electrically conductive contacted.

At the pipe 9 it is a coaxial cable with an outer sheath insulation 10 one radially inside the outer jacket insulation 10 arranged, designed as a shield braid cable shield 11 one radially inside the cable shield 11 located intermediate insulation 12 and the centric vein 8th ,

The socket contact element 2 is with a serving 13 sprayed over, which the spring-shaped front side 14 of the socket contact element 2 surmounted in the radial direction and radially inward to over an annular end face 15 a holding sleeve 16 the Radsok contact 3 protrudes and thus the Radsok contact 3 in the axial direction in the blind hole 6 guaranteed.

The enclosure formed of electrically insulating material 13 is in the axial direction of the plane of the drawing to the right via the socket contact element 2 , in particular the holding element 5 , led out and runs in the plane of the right conical and forms an opening channel 17 for the vein 8th with intermediate insulation 12 , The intermediate insulation 12 lies with its outer surface directly on a peripheral wall 18 of the opening channel 17 at. The serving 13 thus not only isolated the entire holding element 5 but also the management 9 or the wire 8th , resulting from the blind 7 a dense chamber is formed.

The holding element 5 is in the area of the bottom of the blind hole 7 with an outer circumferential collar 19 provided, the axial displacement of the enclosure 13 relative to the socket contact element 2 prevented. Radially outside of the circumferential covenant 19 is from the serving 13 an investment alliance 20 for a radially outer, sleeve-shaped shielding plate 21 educated. Another, two-part investment alliance 22 for the shroud 21 is offset in the axial direction in the drawing plane right of the investment bond 20 intended.

The shielding plate 21 extends from radially outside the insertion opening 4 in the axial direction over the enclosure 13 beyond, with the shroud 21 with axial distance to the opening channel 17 the serving 13 with the cable shield 11 in a first crimping area 23 is crimped. This is radially within the Vercrimpungsbereiches 23 a metallic support sleeve 24 arranged, extending in the axial direction over the shield plate 21 extends out and in a second Vercrimpungsbereich 25 with the outer jacket insulation 10 the line 9 is crimped. In this case, the second Vercrimpungsbereich is axially offset from the first Vercrimpungsbereich 23 arranged.

The on the line 9 deferred support sleeve 24 lies radially inward directly on the outer jacket insulation 10 the line 9 on. A usually directly on the intermediate insulation 12 overlying section 26 the cable shielding 11 is in the plane of the drawing to the right around the outer jacket insulation 10 as well as on the outer jacket insulation 10 arranged support sleeve 24 handled. In other words, the handled section 26 the cable shielding 11 sandwiched between the first crimping area 23 the shielding plate 11 and the support sleeve 24 added. The one of the handled section 26 the cable shielding 11 freed axial section 27 the line 9 surmounted the support sleeve 24 in the axial direction and is in the direction of holding element 5 led, with the intermediate insulation 12 of the axial section 27 only up to the opening channel 17 extends into it. In the axial direction in front, ie left in the drawing plane, is the vein 8th completely stripped.

In 2 is the principle of the screen transfer from the cable shielding 11 on the shroud 21 in the first crimping area 23 shown in detail. It can be seen that the cable shielding 11 immediately along the intermediate insulation 12 runs and after in the drawing level right around the intermediate insulation 12 and the support sleeve 24 bent around. As a result, the annular end faces 28 . 29 the support sleeve 24 and the outer jacket insulation 10 from the cable shield 11 spans. The handled section 26 the cable shielding 11 extends substantially parallel to that at the intermediate insulation 12 adjoining main section 30 the cable shielding 11 ,

In 3 is a complete high current plug contact 1 shown. The outer shield plate can be seen 21 that in the first crimping area 23 with the folded section 26 the cable shielding 11 is crimped. Furthermore, the support sleeve 24 to recognize the second crimping area 25 with the outer jacket insulation 10 the line 9 is crimped and the the shroud 21 surmounted in the axial direction.

In the drawing plane left is at the high current plug contact 1 a shield ring 31 to recognize, by means of which the shield of the shroud 21 is passed on to an interface.

The shield ring 31 includes an outer, radially resilient fin section 32 with which the actual screen transfer takes place. The slat section 32 is radially outside the shielding plate 21 arranged and exerts radially inwards on the shroud 21 a spring force. A radially inwardly located sleeve-shaped section 33 (see 3b ) is sandwiched between the shroud when assembled 21 and the serving 13 added.

In 4a is a three-pole high-current plug-in device in this embodiment 34 shown. Within a bivalve in this embodiment protective housing 35 are three juxtaposed high current plug contacts 1 recorded, with the adjacent screen rings 31 are arranged on the front housing front side. For sealing the protective housing 35 opposite the lines 9 the high current plug contacts 1 is one in each case 4b Slat seal shown in detail 36 provided, each lamellar seal 36 in a separate assembly opening 37 in the protective housing 35 is included.

The lamellar seal 36 includes a plurality of circumferentially extending and axially spaced louvers 38 , which together form a seal labyrinth.

1

High-current plug-in contact

2

Female contact element

3

Radsok contact

4

insertion

5

retaining element

6

blind

7

blind

8th

Contact Core

9

management

10

Outer coat insulation

11

Line shielding

12

intermediate isolation

13

wrapping

14

front

15

front

16

holding sleeve

17

opening channel

18

peripheral wall

19

circumferential collar

20

contact collar

21

shroud

22

contact collar

23

first Vercrimpungsbereich

24

support sleeve

25

second Vercrimpungsbereich

26

cuffed Section of the cable shielding

27

axial

28

front

29

front

30

main section

31

shield ring

32

fin section

33

sleeve-shaped section

34

High-current plug-in device

35

housing

36

lamellar seal

37

mounting hole

38

slats

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• - DE 102005013633 [0026]

Claims (15)

High current plug contact ( 1 ) with at least one, at least one an end-side insertion opening ( 4 ) having socket contact element ( 2 ) electrically contacting, a cable shielding ( 11 ) comprehensive management ( 9 ), and with a socket contact element ( 2 ) enclosing, sleeve-shaped envelope ( 13 ), which radially between the socket contact element ( 2 ) and a sleeve-shaped shielding plate ( 21 ) and with an axial distance to the socket contact element ( 2 ), the line ( 9 ) coaxially enclosing support sleeve ( 24 ), to which a section ( 26 ) of the cable shielding ( 11 ), such that the folded portion of the cable shielding ( 26 ) radially between the support sleeve ( 24 ) and the shielding plate ( 21 ), wherein the shield plate ( 21 ) with the folded portion of the cable shielding ( 26 ) is crimped. High current plug contact according to claim 1, characterized in that the high current plug contact ( 1 ) is at least approximately cylindrical and that the line ( 9 ) in the axial direction on which the insertion opening ( 4 ) having the end face opposite end face in the socket contact element ( 2 ) is guided. High-current plug contact according to one of claims 1 or 2, characterized in that the sleeve-shaped envelope ( 13 ) by encapsulation of the female contact element ( 2 ), in particular with an electrically insulating plastic, is formed. High-current plug contact according to one of claims 1 or 2, characterized in that the sleeve-shaped envelope ( 13 ) as mehrschalige, in particular bivalve, sleeve ( 16 ), in particular of an electrically insulating plastic, is formed. High-current plug contact according to one of the preceding claims, characterized in that the support sleeve ( 24 ), in particular with axial distance to the crimping point ( 23 ) of the shielding sleeve with the cable shield ( 11 ), with the line ( 9 ), in particular with an outer jacket insulation ( 10 ) of the line ( 9 ) is crimped. High current plug contact according to one of the preceding claims, characterized in that the envelope ( 13 ) in the axial direction via the socket contact element ( 2 ) out and radially outward on an intermediate insulation ( 12 ) is applied to the line. High-current plug contact according to one of the preceding claims, characterized in that the socket contact element ( 2 ) a Radsok contact ( 3 ). High-current plug contact according to one of the preceding claims, characterized in that for passing the shield ( 11 ) from the shield plate ( 21 ) to an interface to be contacted a shield ring ( 31 ), which is electrically conductive with the shield plate ( 21 ) connected is. High-current plug contact according to claim 8, characterized in that a sleeve-shaped section ( 33 ) of the shield ring ( 31 ) radially between the shield plate ( 21 ) and the envelope ( 13 ) is recorded. High-current plug contact according to one of claims 8 or 9, characterized in that a portion of the shielding plate ( 21 ) radially within an outer, resilient, fin section ( 32 ) of the shield ring ( 31 ), which around a front side of the shielding plate ( 21 ) is bent over, is received by clamping. High-current plug-in device with at least one high-current plug-in contact ( 1 ) according to one of the preceding claims and a protective housing surrounding this at least in sections ( 35 ). High-current plug-in device according to claim 11, characterized in that the protective housing ( 35 ) is designed as encapsulation. High-current plug-in device according to claim 11, characterized in that the protective housing ( 35 ) is constructed in shell construction. High-current plug-in device according to one of claims 11 to 13, characterized in that the line ( 9 ) opposite the housing ( 35 ), in particular by means of a lamellar seal ( 36 ), is sealed. High-current plug-in device according to one of claims 11 to 14, characterized in that inside the housing ( 35 ) a plurality of juxtaposed, preferably mutually parallel high current plug contacts ( 1 ) are provided.