CABLE CONNECTION HAVING IMPROVED ELECTROMAGNETIC SHIELDING
A device in a motor vehicle includes two electric and/or electronic assemblies and a cable connection. The electric and/or electronic assemblies are electrically connected via the allocated terminals to at least two earth lines and at least two current-carrying lines of the cable connection. The cable connection has, for each current carrying line, at least one earth line which extends along the current-carrying line and in the same longitudinal direction as the current-carrying line. Also specified are an electric drive in a motor vehicle having such a device, and a motor vehicle having such a drive.
1 . A device in a motor vehicle, comprising
two electrical and/or electronic assemblies which each have a connection to ground for at least two ground conductors and terminals for at least two current-carrying conductors, and
a cable connection having at least two ground conductors and at least two current-carrying conductors,
wherein the electrical and/or electronic assemblies are electrically connected to the at least two ground conductors and the at least two current-carrying conductors of the cable connection via the associated terminals, and
wherein the cable connection has, per current-carrying conductor, at least one assigned ground conductor which runs along the current-carrying conductor and in the same longitudinal direction as the current-carrying conductor.
2 . The device as claimed in claim 1 , wherein the cable connection has, per current-carrying conductor, precisely one ground conductor which runs along the current-carrying conductor and in the same longitudinal direction as the current-carrying conductor.
3 . The device as claimed in claim 1 , wherein, the cable connection comprises an insulation for a current-carrying conductor of the current-carrying conductors, and the at least one ground conductor assigned to the current-carrying conductor runs within this insulation.
4 . The device as claimed in claim 1 , wherein the cable connection comprises an insulation for a current-carrying conductor of the current-carrying conductors, and the at least one ground conductor assigned to the current-carrying conductor runs outside this insulation.
5 . The device as claimed in claim 1 , wherein a plug-type connection having plug-type contacts, wherein the at least two ground conductors and the current-carrying conductors are connected to at least one of the electrical and/or electronic assemblies with the aid of the plug-type contacts.
6 . The device as claimed in claim 1 , wherein a plug-type connection having plug-type contacts, wherein the current-carrying conductors are connected to at least one of the electrical and/or electronic assemblies with the aid of the plug-type contacts, and wherein a part of the plug-type connection which is fixedly connected to the current-carrying conductors and is insulated from the plug-type contacts has a terminal for the at least two ground conductors via which the at least two ground conductors are connected to the connection to ground of the at least one electrical and/or electronic unit/assembly.
7 . The device as claimed in claim 6 , wherein that part of the plug-type connection which is fixedly connected and is insulated from the plug-type contacts comprises a metallic male connector housing, and the at least two ground conductors for the electrical connection to the connection to ground of the at least one electrical and/or electronic unit/assembly
are embedded directly in the male connector housing or
are screwed or pressed to the male connector housing.
8 . The device as claimed in claim 1 , wherein a plug-type connection having plug-type contacts, wherein the current-carrying conductors are connected to at least one of the electrical and/or electronic assemblies with the aid of the plug-type contacts, and wherein the plug-type connection is secured against being unintentionally released with the aid of a screw-type connection which is insulated from the plug-type contacts, and the at least two ground conductors are connected to the connection to ground of the at least one electrical and/or electronic unit/assembly via this screw-type connection.
9 . An electric drive in a motor vehicle, wherein the device as claimed in claim 1 , wherein the electrical and/or electronic assemblies comprise a voltage source and an inverter which is electrically connected to the voltage source and comprise an electric machine which is electrically connected to the inverter.
10 . A motor vehicle having at least two axles, at least one of which is driven, wherein said driving action takes place at least partially or for part of the time by means of the electric machine of the electric drive as claimed in claim 9 .
11 . The device as claimed in claim 2 , wherein the cable connection comprises an insulation for a current-carrying conductor of the current-carrying conductors, and the at least one ground conductor assigned to the current-carrying conductor runs within this insulation.
12 . The device as claimed in claim 2 , wherein the cable connection comprises an insulation for a current-carrying conductor of the current-carrying conductors, and the at least one ground conductor assigned to the current-carrying conductor runs outside this insulation.
13 . The device as claimed in claim 2 , wherein a plug-type connection having plug-type contacts, wherein the at least two ground conductors and the current-carrying conductors are connected to at least one of the electrical and/or electronic assemblies with the aid of the plug-type contacts.
14 . The device as claimed in claim 2 , wherein a plug-type connection having plug-type contacts, wherein the current-carrying conductors are connected to at least one of the electrical and/or electronic assemblies with the aid of the plug-type contacts, and wherein a part of the plug-type connection which is fixedly connected to the current-carrying conductors and is insulated from the plug-type contacts has a terminal for the at least two ground conductors via which the at least two ground conductors are connected to the connection to ground of the at least one electrical and/or electronic unit/assembly.
15 . The device as claimed in claim 2 , wherein a plug-type connection having plug-type contacts, wherein the current-carrying conductors are connected to at least one of the electrical and/or electronic assemblies with the aid of the plug-type contacts, and wherein the plug-type connection is secured against being unintentionally released with the aid of a screw-type connection which is insulated from the plug-type contacts, and the at least two ground conductors are connected to the connection to ground of the at least one electrical and/or electronic unit/assembly via this screw-type connection.
16 . An electric drive in a motor vehicle, wherein the device as claimed in claim 2 , wherein the electrical and/or electronic assemblies comprise a voltage source and an inverter which is electrically connected to the voltage source and comprise an electric machine which is electrically connected to the inverter.
17 . The device as claimed in claim 3 , wherein a plug-type connection having plug-type contacts, wherein the at least two ground conductors and the current-carrying conductors are connected to at least one of the electrical and/or electronic assemblies with the aid of the plug-type contacts.
18 . The device as claimed in claim 3 , wherein a plug-type connection having plug-type contacts, wherein the current-carrying conductors are connected to at least one of the electrical and/or electronic assemblies with the aid of the plug-type contacts, and wherein a part of the plug-type connection which is fixedly connected to the current-carrying conductors and is insulated from the plug-type contacts has a terminal for the at least two ground conductors via which the at least two ground conductors are connected to the connection to ground of the at least one electrical and/or electronic unit/assembly.
19 . The device as claimed in claim 3 , wherein a plug-type connection having plug-type contacts, wherein the current-carrying conductors are connected to at least one of the electrical and/or electronic assemblies with the aid of the plug-type contacts, and wherein the plug-type connection is secured against being unintentionally released with the aid of a screw-type connection which is insulated from the plug-type contacts, and the at least two ground conductors are connected to the connection to ground of the at least one electrical and/or electronic unit/assembly via this screw-type connection.
20 . An electric drive in a motor vehicle, wherein the device as claimed in claim 3 , wherein the electrical and/or electronic assemblies comprise a voltage source and an inverter which is electrically connected to the voltage source and comprise an electric machine which is electrically connected to the inverter.