Electrical plug connector, high-voltage wiring harness, high-voltage system and method for attaching an electrical plug connector

Abstract

An electrical plug connector, in particular an electrical pin connector socket for the power electronics in the automotive sector, comprising a plug connector body for receiving a contact device and comprising a shield. The plug connector body is designed for introducing into an opening of a housing part of a housing of an electronics unit. The plug connector body is designed in multiple parts and has at least one inner plug connector body and an outer plug connector body, which are positioned on opposite sides of the housing part. The inner plug connector part can be fixed in the housing of the electronics unit independently of the housing part. Securing means connect the plug connector bodies to one another so that the housing part is fixed between the plug connector bodies.

Claims

1. An electrical plug connector for an electronic power system in the automotive industry, the electrical plug connector comprising: an inner plug connector body that is positionally fixed within a housing of an electronic unit; an outer plug connector body that is releasably connectable to the inner plug connector body; an electromagnetic shield carried by the inner plug connector body; a cover releasably attached to the housing of the electronic unit, the cover defining an opening for the electrical plug connector to extend at least partially therethrough; and wherein the inner plug connector body is configured for receiving a contact device; and wherein the inner plug connector body is fixed within the housing of the electronic unit independently from the cover; and the outer plug connector body and the inner plug connector body are positioned on opposite-lying sides of the cover and are aligned with the opening defined in the cover; and attachment means to releasably connect the inner plug connector body and the outer plug connector body to one another.

2. The electrical plug connector as claimed in claim 1 and wherein the attachment means are screw connections.

3. The electrical plug connector as claimed in claim 1 and wherein the inner plug connector body or the outer plug connector body defines plural sockets, and the defined plural sockets are arranged in a symmetrical manner around a central axis of the plug connector body, and the corresponding plug connector body defines a corresponding number of through-going holes that are arranged in a corresponding symmetrical manner around the central axis of the plug connector body; and the attachment means connect the inner plug connector body and the outer plug connector body to one another.

4. The electrical plug connector as claimed in claim 3 and wherein the plural sockets define threads.

5. The electrical plug connector as claimed in claim 3 and wherein the attachment means are threaded fasteners.

6. The electrical plug connector as claimed in claim 1 and wherein the electromagnetic shield comprises a cylindrical section and multiple shield tabs that adjoin the cylindrical section.

7. The electrical plug connector as claimed in claim 6 and wherein the multiple shield tabs comprise radially protruding contact sites that are positioned relative to the cylindrical section in such a manner that the radially protruding contact sites contact the cover proximate the opening defined in the cover.

8. The electrical plug connector as claimed in claim 1 and wherein the shield is connected to the inner plug connector body.

9. The electrical plug connector as claimed in claim 1 and wherein the contact device is received in and is connected to the inner plug connector body in a positive-locking manner.

10. The electrical plug connector as claimed in claim 1 and wherein the contact device has plural inner conductor parts.

11. The electrical plug connector as claimed in claim 1 and further comprising: an HV-interlock carried by the contact device; and the HV-interlock monitors that the electrical plug connector is correctly connected to an electrical mating plug connector.

12. The electrical plug connector as claimed in claim 1 and further comprising: a positioning device carried by the electrical plug connector, and the positioning device ensures the inner plug connector body and the outer plug connector body can only be connected to one another in a defined orientation.

13. The electrical plug connector as claimed in claim 1 and further comprising: an electrical mating plug connector; and the electrical mating plug connector and the electrical plug connector together form a coding device; and the coding device ensures that the electrical plug connector and the electrical mating plug connector can only be connected to one another in a defined orientation.

14. The electrical plug connector as claimed in claim 13 and further comprising: a guide carried by the electrical plug connector, and the guide is at least partially annular in shape and renders it possible to connect the electrical plug connector to the electrical mating plug connector; and the guide includes a dismount facility that is at least partially rotatable.

15. The electrical plug connector as claimed in claim 1 and wherein the contact device is received in the inner plug connector body in a clipped positive-locking manner.

16. The electrical plug connector as claimed in claim 1 and wherein the contact device has plural inner conductor parts that are embodied as pin contacts.

17. The electrical plug connector as claimed in claim 1 and wherein the electrical plug connection is a multi-pin plug connector.

18. A high voltage cable harness comprising: an electrical plug connector, the electrical plug connector having, a plug connector body for receiving a contact device; the plug connector body comprising an inner plug connector body, and an outer plug connector body; and the plug connector body is embodied to be inserted into an opening defined in a cover that is releasable attachable to a housing of an electronic unit; an electromagnetic shield carried by the plug connector body; and the inner plug connector body and the outer plug connector body are positioned on opposite-lying sides of the cover; and the inner plug connector body can be fixed in the housing of the electronic unit independently from the cover; and attachment means to connect the inner plug connector body and the outer plug connector body to one another in such a manner that the cover is fixed between the inner plug connector body and the outer plug connector body; and a pre-fabricated cable having a corresponding electrical mating plug connector.

19. A high voltage system for a motor vehicle, comprising: an electrical plug connector, the electrical plug connector having, a plug connector body for receiving a contact device, the plug connector body comprising an inner plug connector body and an outer plug connector body, and the plug connector body is embodied to be inserted into an opening defined in a cover of a housing of an electronic unit, an electromagnetic shield carried by the plug connector body, and the inner plug connector body and the outer plug connector body are positioned on opposite-lying sides of the cover and aligned with the opening defined therein, and the inner plug connector body is fixed in the housing of the electronic unit independently from the cover; and attachment means to connect the inner plug connector body and the outer plug connector body to one another in such a manner that the cover is fixed between the inner plug connector body and the outer plug connector body; and a high voltage electronic unit that includes a high voltage battery, and the high voltage battery is carried within the housing; and an electrical mating plug connector for connecting to the electrical plug connector.

20. A method for attaching an electrical plug connector to an electronic unit, the method comprising the steps: providing a housing of the electronic unit, the housing of the electronic unit including a high voltage battery; providing a cover for the housing of the electronic unit, and the cover defines an opening therein; providing an electrical plug connector; providing a contact device that has a shield; providing an inner plug connector body of the electrical plug connector, and inserting the contact device into the inner plug connector body; positioning and fixing the inner plug connector body within the housing of the electronic unit; positioning the cover of the housing of the electronic unit on the housing of the electronic unit so that a front part of the inner plug connector body protrudes into and at least partially through the opening defined in the cover of the housing of the electronic unit housing part and outward from an inner chamber defined by the housing of the electronic unit, and providing an outer plug connector body that corresponds to the inner plug connector body; axially aligning the outer plug connector body with the inner plug connector body portion that extends though the opening defined in the cover; engaging the outer plug connector body with the inner plug connector body so that the outer plug connector body is on an outer face of the cover; and connecting the inner plug connector body to the outer plug connector body in such a manner that the cover is fixed between the inner connector body and the outer connector body.

Description

BRIEF DESCRIPTIONS OF THE DRAWINGS

(1) The figures illustrate a preferred exemplary embodiment in which individual features of the present invention are represented in combination with one another. The features of the exemplary embodiment are however also workable separately from the other features of the exemplary embodiment and can accordingly be readily combined by a person skilled in the art to form further expedient combinations and sub-combinations.

(2) Like-functioning elements are provided with the same reference numerals in the figures.

(3) FIG. 1 illustrates an exploded view of the electrical plug connector having an inner plug connector body. a housing part and an outer plug connector body.

(4) FIG. 2 illustrates a perspective side view of the inner plug connector body that is inserted into an opening of the housing part.

(5) FIG. 3 illustrates an orthographic side view showing the housing part on which the electrical plug connector is fixed.

(6) FIG. 4 illustrates a perspective top view of the electrical plug connector that is connected to the housing part in accordance with the arrow direction IV shown in FIG. 3.

(7) FIG. 5 illustrates a perspective bottom view of the electrical plug connector that is connected to the housing part in accordance with the arrow direction V shown in FIG. 3.

(8) FIG. 6 illustrates a schematic sketch of a high voltage system having a housing of a high voltage electronic unit, in particular of a high voltage battery, and a high voltage cable harness, comprising an electrical plug connector and a pre-fabricated cable having a corresponding electrical mating plug connector.

DETAILED WRITTEN DESCRIPTION OF THE PREFERRED EMBODIMENTS

(9) This disclosure of the invention is submitted in furtherance of the Constitutional purposes of the U.S. Patent laws “to promote the progress of science and useful arts (Article 1, Section 8).

(10) Figure FIG. 1 illustrates an electrical plug connector 1 in a preferred embodiment as a multi-pin connector.

(11) The electrical plug connector 1 is suitable, in particular, for use in the electronic power system in the automotive industry or electronics industry. The electrical plug connector 1 in the exemplary embodiment is embodied as a plug connector 1 for the high voltage industry, preferably as a component of a high voltage cable harness, and this is turn, is embodied preferably as a component of a high voltage system.

(12) However, the exemplary embodiment is not to be understood as being limited thereto.

(13) The electrical plug connector 1 comprises a multi-part plug connector body that is assembled in the exemplary embodiment from an inner plug connector body 2 and an outer plug connector body 3.

(14) As is apparent in the figures, the inner plug connector body 2 receives a contact device 4. The contact device 4 can be connected to the inner plug connector body 2 in an arbitrary manner. It is provided in the exemplary embodiment that the contact device 4 is inserted into the inner plug connector body 2 and preferably in particular hooked or clipped therein in a positive-locking manner.

(15) For this purpose, it is provided in the exemplary embodiment that the inner plug connector body 2 comprises latching hooks 5 that hook in or latch in a suitable manner with the contact device 4. (FIG. 5).

(16) It is provided in the exemplary embodiment that current connections 6 (FIG. 5) of the contact device 4 are configured in such a suitable manner that—if the contact device 4 is pushed into the inner plug connector body 2—the latching hooks 5 hook in, or latch with, a corresponding configuration of the current connections 6, for example with a recess or a shoulder, in order to prevent the contact device 4 from being unplugged or removed from the inner plug connector body 2.

(17) The latching hooks 5 are illustrated schematically in FIG. 5 and are shown hooking in with the current connections 6.

(18) In the exemplary embodiment, four latching hooks 5 are provided, wherein two each latching hooks 5 engage on opposite-lying positions on a respective current connection.

(19) The contact device 4 can be embodied in order to transmit currents and/or data at any frequency and/or data rate. It is provided in the exemplary embodiment that the contact device 4 can be used in the high voltage industry for use with high voltages, in particular 220 Volt, and higher, preferably 400 to 1000 Volt.

(20) For this purpose, the contact device 4 as illustrated in the figures comprises two current connections 6.

(21) The current connections 6 are connected in the exemplary embodiment to two inner conductor parts 7 respectively, that are embodied in order to transmit electrical current to accordingly correspondingly embodied inner conductor parts 7 of an electrical mating plug connector 8 that is illustrated schematically in FIG. 6.

(22) It is also possible to provide only one inner conductor part 7 in lieu of two inner conductor parts 7 per current connection 6.

(23) As is in particular clearly apparent from FIGS. 2 and 4, it is provided in the exemplary embodiment that in each case two inner conductor parts 7 are arranged in pairs in such a manner that an inner conductor part (not illustrated) of the mating plug connector 8 can be pushed in between one inner conductor pair of the plug connector 1. Alternatively, the inner conductor part of the mating plug connector 8 can also be embodied so as to include the two inner conductor parts 7 of one pair. Moreover, the mating plug connector 8 can also comprise inner conductor parts that are embodied in multiple parts per current connection.

(24) In one embodiment, (not illustrated), it is also possible to provide that the electrical plug connector 1 is embodied in a bipolar manner and consequently includes two contact devices 4.

(25) In the exemplary embodiment, the contact device 4 comprises a circular outer circumference. The shape of the contact device 4 can however be arbitrarily selected, for example only, and not as a limitation, the shape of the contact device 4 can likewise also be square or rectangular. However, a circular outer circumference, in particular also a concentric or symmetrical construction of the contact device 4 has proven to be suitable.

(26) The inner conductor parts 7 of the contact device 4 can preferably be embodied as pin contacts. A configuration of this type has proven to be particularly suitable.

(27) As is particularly apparent in FIG. 4, the contact device 4 can comprise a so-called HV-interlock 9 for monitoring that the electrical plug connector 1 is correctly connected to an electrical mating plug connector 8. FIGS. 1 to 3 and 5 also illustrate two lines 9a that lead to the HV-interlock 9.

(28) The inner plug connector body 2 comprises an electromagnetic shield 10. It is possible, particularly as a result of alternating currents and/or switching procedures of a DC voltage, for electromagnetic interference signals to be generated which can interfere with the electronic system. for example in a motor vehicle, in particular impair the electronic control procedures, such as for example an engine control procedure, in a motor vehicle. The exemplary embodiment illustrates a particularly suitable embodiment of the shield 10. The shield 10 comprises a cylindrical section 11 and multiple shield tabs 12 that adjoin the cylindrical section 11. The mating plug connector 8 is preferably configured in such a manner that it likewise comprises a shield (not illustrated) which contacts the shield tabs 12 at least in part in a radial manner. The shield tabs 12 are preferably embodied in a resilient manner so as to produce a connection to the shield of the mating plug connector 8.

(29) The shield 10 is connected in the exemplary embodiment to the inner plug connector body 2. The inner plug connector body 2 and the shield 10 are jointly inserted into an opening 13 of a housing part 14 of a housing 15 of an electronic unit 16.

(30) The housing 15 can be a component of the electronic unit 16 or can be embodied independently therefrom and receive the electronic unit 16. The electronic unit 16 is embodied in the exemplary embodiment preferably as a high voltage electronic unit, in particular as a high voltage battery 16.

(31) A particularly advantageous connection of the inner plug connector body 2 to the housing 15 or the housing part 14 is produced by virtue of the fact that the inner plug connector body 2 is initially fixed in the housing 15. The fixing procedure can be performed in an arbitrary manner. In the exemplary embodiment, it is illustrated schematically in FIG. 6 that the inner plug connector body 2 is fixed at the screw connection sites 17. The inner plug connector body 2 can be configured accordingly for this purpose (not further illustrated). It is of advantage if the inner plug connector body 2 is initially fixed in the housing 15 and subsequently the housing part 14 that is provided with the opening 13 is placed on or the inner plug connector body 2 is inserted into the opening 13. The inner plug connector body 2 is fixed for this purpose at a correspondingly suitable position in the housing 15 with the result that the opening 13 and the contact device 4 that is inserted into the inner plug connector body 2 are aligned in a concentric manner with one another with the result that the contact device 4 can penetrate the opening 13 outward from an inner chamber of the housing 15.

(32) In the exemplary embodiment it is—optionally—provided that the housing part 14 is embodied as a cover of the housing 15.

(33) If the inner plug connector body 2 is pushed through the opening 13, the outer plug connector body 3 is subsequently lying against an outer face of the housing part 14. This is illustrated in the figures, in particular also in the exploded view in FIG. 1. The outer plug connector body 3 and the inner plug connector body 2 are fixed with the aid of attachment means 18 in such a manner that the housing part 14 is also fixed between the plug connector bodies 2, 3. In the exemplary embodiment, the attachment means are embodied as screw connections, in particular as threaded bolts 18.

(34) In the exemplary embodiment, it is moreover provided that the inner plug connector body 2 comprises at least two, in the exemplary embodiment four, sockets 19 that are arranged in a symmetrical manner about a central axis A of the plug connector 1. The sockets 19 are embodied in the exemplary embodiments as threaded sockets 19. The outer plug connector body 3 comprises correspondingly at least two, in the exemplary embodiment four, through-going holes 20 that are arranged in a symmetrical manner around the central axis A of the plug connector 1.

(35) It is provided in the exemplary embodiment that the housing part 14 comprises holes 21 that align with the threaded sockets 19 or with the through-going holes 20.

(36) Moreover, seals are provided in the exemplary embodiment that are configured as O-rings 22 so as to seal the holes 21 in the housing part 14. It is provided in the exemplary embodiment that the O-rings 22 are placed in the threaded sockets 19. It is preferred that the threaded sockets 19 comprise corresponding depressions for this purpose.

(37) In order to seal the opening 13. a seal 23 is likewise provided in a similar manner. In the exemplary embodiment, a seal 23 is used for this purpose that is positioned between the outer face of the housing part 14 and the outer plug connector body 3 and extends around the opening 13. (only illustrated in FIG. 1).

(38) As is particularly apparent in FIG. 2, the shield tabs 12 and/or alternatively (but not illustrated) the cylindrical section 11 of the shield 10 comprises contact sites 24 that are positioned in such a manner that the contact sites 24 make contact with the housing part 14 in the region of the opening 13. It is preferred that for this purpose the contact sites 24 protrude radially beyond the shield tabs 12. By means of the contact points 24, a reliable electrical connection is produced between the shield 10 and the housing part 14 that is preferably embodied in an electrically conductive manner in particular as a sheet metal part or also as a cast part.

(39) As is particularly apparent in FIG. 1 and FIG. 4, the plug connector bodies 2, 3 comprise a positioning device 25 in such a manner that the plug connector bodies 2, 3 can only be connected to one another in a defined orientation. It is provided in the exemplary embodiment that the positioning device 25 comprises at least one, in the exemplary embodiment multiple, preferably three to four, positioning grooves 26 and positioning lugs 27 that correspond therewith.

(40) In the exemplary embodiment, the positioning grooves 26 are embodied on the inner plug connector body 2 and extend in the axial direction between two shield tabs 12. The outer plug connector body 3 comprises, for this purpose, corresponding positioning lugs 27 that, when the outer plug connector body 3 is correctly placed on the inner plug connector body 2. extend in the axial direction A and can be pushed into the corresponding positioning grooves 26. It is provided in the exemplary embodiment that the plug connector bodies 2, 3 can only be connected to one another in precisely one orientation.

(41) It is provided in the exemplary embodiment that the electrical plug connector 1 with the electrical mating plug connector 8 forms a coding device 28 in such a manner that the plug connector 1 and the mating plug connector 8 can only be connected to one another in a defined orientation. It is provided in the exemplary embodiment that the electrical plug connector 1 and the electrical mating plug connector 8 can only be connected to one another in precisely one orientation.

(42) In the exemplary embodiment. only the part of the coding device 28 is illustrated that is allocated to the electrical plug connector 1, more precisely to the outer plug connector body 3. A coding element 29 of the coding device 28 that is allocated to the outer plug connector body 3 is illustrated in FIG. 1 and FIG. 4 and forms a mechanical coding element. Mechanical coding elements for connecting electrical plug connectors 1 and electrical mating plug connectors 8 to one another are fundamentally known from the prior art. Fundamentally it is possible within the scope of the invention to also provide multiple coding elements 29 on the plug connector 1 and (not illustrated) on the mating plug connector 8 in order to embody the coding device 28 accordingly. In the exemplary embodiment, 2 coding elements 29 are embodied on the outer plug connector body 3.

(43) As is apparent from the figures, the electrical plug connector 1 comprises a guide 30 that is embodied in part in annular manner and is embodied in order to render possible a connection that comprises a 90° dismount facility (as illustrated schematically in FIG. 6) between the plug connector 1 and electrical mating plug connector 8.

(44) In this case, other configurations are also possible, in particular when the mating plug connector 8 comprises a different dismount facility in particular a dismount facility that extends parallel to the central axis A of the plug connector 1 or the central axis A of the plug connector body 2, 3.

(45) As is apparent in the figures, the outer plug connector body 3 comprises a toothing arrangement 32. In the exemplary embodiment, it is provided (not illustrated) that the electrical mating plug connector 8 comprises a corresponding toothing arrangement whereby—after the electrical plug connector 1 has been connected to the electrical mating plug connector 8—a positive-locking connection is produced that offers protection against rotation or can absorb such forces.

(46) FIG. 6 illustrates a schematic construction of a high voltage system having the electrical plug connector 1 and an electrical mating plug connector 8. Also illustrated is the housing 15 that receives the electronic unit 16 which is preferably a high voltage electronic unit, in particular a high voltage battery 16. The high voltage battery 16 is connected to the current connections 6 of the electrical plug connector 1 via lines 33. The housing part 14 is in this case preferably a cover of the housing 15. The electrical mating plug connector 8 is illustrated in FIG. 6 as part of a pre-fabricated cable 31, in other words the pre-fabricated cable 31 comprises the electrical mating plug connector 8. However, it is fundamentally also possible for the electrical mating plug connector 8 to be an electrical mating plug connector 8 that is embodied only as a socket, as an adaptor or the like and in particular it is not absolutely necessary for it to be part of a pre-fabricated cable 31.

OPERATION

(47) Having described the structure of our electrical plug connector 1, high-voltage wiring harness, high-voltage system and method for attaching an electrical plug connector 1, its operation is briefly described.

(48) The present invention provides a method for attaching an electrical plug connector 1 to an electronic unit 16, the method comprising the steps providing a housing 15 of the electronic unit 16, the housing 15 of the electronic unit 16 including a high voltage battery; providing an electrical plug connector 1; providing a contact device 4 that has a shield 10; providing an inner plug connector body 2 of the electrical plug connector 1, and inserting the contact device 4 into the inner plug connector body 2; providing a housing part 14 of the housing 15, and the housing part 14 is embodied as a cover of the housing 15 and the housing part 14 defines an opening 13 to receive at least a portion of the inner plug connector body 2; positioning and fixing the inner plug connector body 2 to the housing part 14 of the housing 15 so that a front part of the inner plug connector body 2 protrudes into and at least partially through the opening 13 defined in the housing part 14 and outward from an inner chamber defined by the housing 15, and providing an outer plug connector body 3 that corresponds to the inner plug connector body 2; axially aligning the outer plug connector body 3 with the inner plug connector body 2 portion that extends though the opening 13 defined in the housing part 15; engaging the outer plug connector body 3 with the inner plug connector body 2 so that the outer plug connector body 3 is on an outer face of the housing part 14 and connecting the inner plug connector body 2 to the outer plug connector body 3 in such a manner that the housing part 14 is fixed between the inner connector body 2 and the outer connector body 3.

(49) A further object of the present invention is an electrical plug connector 1 for an electronic power system in the automotive industry, comprising: a plug connector body 1 for receiving a contact device 4, the plug connector body 1 including an inner plug connector body 2 and an outer plug connector body 3, and the plug connector body 1 is embodied to be inserted into an opening 13 defined in a housing part 14 of a housing 15 of an electronic unit 16; a shield 10 carried by the plug connector body 1; and the inner plug connector body 2 and the outer plug connector body 3 are positioned on opposite-lying sides of the housing part 14, and the inner plug connector body 2 can be fixed in the housing 15 of the electronic unit 16 independently from the housing part 14; and attachment means 18 to connect the inner plug connector body 2 and the outer plug connector body 3 to one another so that the housing part 14 is fixed between the inner plug connector body 2 and the outer plug connector body 3.

(50) A further object of the present invention is an electrical plug connector 1 wherein the attachment means 18 are screw connections.

(51) A further object of the present invention is an electrical plug connector 1 wherein the inner plug connector body 2 or the outer plug connector body 3 defines plural sockets 19, and the defined plural sockets 19 are arranged in a symmetrical manner around a central axis of the plug connector body 1, and the corresponding plug connector body (2, 3) defines a corresponding number of through-going holes 20 that are arranged in a corresponding symmetrical manner around the central axis of the plug connector body 1; and connection elements 18 connect the inner plug connector body 2 and the outer plug connector body 3 to one another.

(52) A further object of the present invention is an electrical plug connector 1 wherein the shield 10 comprises a cylindrical section 11 and multiple shield tabs 12 that adjoin the cylindrical section 11.

(53) A further object of the present invention is an electrical plug connector 1 wherein the multiple shield tabs 12 comprise radially protruding contact sites 24 that are positioned relative to the cylindrical section 11 in such a manner that the radially protruding contact sites 24 contact the housing part 14 proximate the opening 13.

(54) A further object of the present invention is an electrical plug connector 1 wherein the shield 10 is connected to the inner plug connector body 2.

(55) A further object of the present invention is an electrical plug connector 1 wherein the contact device 4 is received in, and is connected to the inner plug connector body 2 in a positive-locking manner.

(56) A further object of the present invention is an electrical plug connector 1 wherein the contact device 4 has plural inner conductor parts 7.

(57) A further object of the present invention is an electrical plug connector 1 and further comprises an HV-interlock 9 carried by the contact device 4; and the HV-interlock 9 monitors that the electrical plug connector 1 is correctly connected to an electrical mating plug connector 8.

(58) A further object of the present invention is an electrical plug connector 1 and further comprises a positioning device 25 carried by the plug connector body 1, and the positioning device 25 ensures the inner plug connector body 2 and the outer plug connector body 3 can only be connected to one another in a defined orientation.

(59) A further object of the present invention is an electrical plug connector 1 and further comprises an electrical mating plug connector 8; and the electrical mating plug connector 8 and the electrical plug connector 1 together form a coding device 28; and the coding device 28 ensures that the plug connector 1 and the mating plug connector 8 can only be connected to one another in a defined orientation.

(60) A further object of the present invention is an electrical plug connector 1 and further comprises a guide 30 carried by the plug connector 1, and the guide 30 is at least partially annular in shape and renders it possible to connect the plug connector 1 to the mating plug connector 8; and the guide 30 includes a dismount facility that is at least partially rotatable.

(61) A further object of the present invention is a high voltage cable harness comprising: an electrical plug connector 1, the electrical plug connector 1 having, a plug connector body 1 for receiving a contact device 4, the plug connector body 1 comprising an inner plug connector body 2 and an outer plug connector body 3, and the plug connector body 1 is embodied to be inserted into an opening 13 defined in a housing part 14 of a housing 15 of an electronic unit 16, a shield 10 carried by the plug connector body 1; and the inner plug connector body 2 and the outer plug connector body 3 are positioned on opposite-lying sides of the housing part 14, and the inner plug connector body 2 can be fixed in the housing 15 of the electronic unit 16 independently from the housing part 14, and attachment means 18 to connect the inner plug connector body 2 and the outer plug connector body 3 to one another in such a manner that the housing part 14 is fixed between the inner plug connector body 2 and the outer plug connector body 3; and a pre-fabricated cable 31 having a corresponding electrical mating plug connector 8.

(62) A further object of the present invention is a high voltage system—for a motor vehicle, comprising an electrical plug connector 1, the electrical plug connector 1 having, a plug connector body 1 for receiving a contact device 4, the plug connector body 1 comprising an inner plug connector body 2 and an outer plug connector body 3, and the plug connector body 1 is embodied to be inserted into an opening 13 defined in a housing part 14 of a housing 15 of an electronic unit 16, a shield 10 carried by the plug connector body 1, and the inner plug connector body 2 and the outer plug connector body 3 are positioned on opposite-lying sides of the housing part 14, and the inner plug connector body 2 can be fixed in the housing 15 of the electronic unit 16 independently from the housing part 14; and attachment means 18 to connect the inner plug connector body 2 and the outer plug connector body 3 to one another in such a manner that the housing part 14 is fixed between the inner plug connector body 2 and the outer plug connector body 3; and a high voltage electronic unit 16 that includes a high voltage battery, and a housing 15 that has a housing part 14; and the electrical plug connector 1 is fixed to the housing part 14; and an electrical mating plug connector 8 for connecting to the electrical plug connector 1.

(63) A still further object of the present invention is an electrical plug connector 1 wherein the plural sockets 19 define threads.

(64) A still further object of the present invention is an electrical plug connector 1 wherein the connection elements 18 are threaded bolts.

(65) An even still further object of the present invention is an electrical plug connector 1 wherein the contact device 4 is received in the inner plug connector body 2 in a clipped positive-locking manner.

(66) An even still further object of the present invention is an electrical plug connector 1 wherein the contact device 4 has plural inner conductor parts 7 that are embodied as pin contacts.

(67) An even still further object of the present invention is an electrical plug connector 1 wherein the electrical plug connection is a multi-pin plug connector.

(68) In compliance with the statute, the present invention has been described in language more or less specific as to the structural and methodical features. It is to be understood, however, that the invention is not limited to the specific features shown and described since the means herein disclosed comprise preferred forms of putting the invention into effect. The invention is therefore claimed, in any of its forms or modifications, within the proper scope of the appended claims appropriately interpreted in accordance with the doctrine of equivalents.