High-voltage terminal with attached star rail and tolerance compensation

1 . A high-voltage terminal for a stator of an electric machine comprising:

a plurality of first interconnection elements configured to establish electrical contact between contact pins of a stator winding and contact connections of power electronics so as to drive the electric machine;

a second interconnection element configured to establish electrical contact between contact pins of a stator winding so as to create a star phase, the second interconnection element configured in a plane perpendicular to a rotational axis of the electric machine between a first radius and a second radius, the first radius and the second radius extending around the rotational axis, the first radius being smaller than the second radius, the second interconnection element forming three sections on the first radius and two loops between the first radius and the second radius; and

a receiving element that centers and fixes the second interconnection element radially or circumferentially in a form-fitting manner, the receiving element comprising a plurality of centering domes centering and fixing the second interconnection element radially or circumferentially in a force-fit or form-fit, the plurality of centering domes comprising three centering domes, the three centering domes being arranged in one of the two loops, a first and third of the three centering domes circumferentially centering the second interconnection element, a second of the three centering domes radially centering the second interconnection element, the second of the three centering domes being disposed radially outwards of and circumferentially between the first and third of the three centering domes.

2 . The high-voltage terminal according to claim 1 , further comprising a plastic element surrounding the plurality of first interconnection elements at least in sections, wherein the plastic element centers and fixes the plurality of first interconnection elements in a materially bonded manner.

3 . The high-voltage terminal according to claim 2 , wherein the plastic element and the receiving element are integrally formed from a single component.

4 . The high-voltage terminal according to claim 2 , further comprising a mounting element configured to center and fix the high-voltage terminal on an element of the electric machine, wherein the element of the electric machine is a stator carrier.

5 . The high-voltage terminal according to claim 4 , wherein the mounting element has a bushing with a centering collar.

6 . The high-voltage terminal according to claim 4 , wherein the mounting element and the plastic element are integrally formed from one component.

7 . The high-voltage terminal according to claim 1 , wherein the plurality of centering domes are cylindrical.

8 . The high-voltage terminal according to claim 1 , wherein at least one of the plurality of first interconnection elements has a connection region to the contact connections of the power electronics, wherein the connection region and the power electronics are configured to establish a connection by a screw connection.

9 . An electric machine comprising a high-voltage terminal according to claim 1 .

10 . A high-voltage terminal for a stator of an electric machine comprising:

a plurality of first interconnection elements configured to establish electrical contact between a plurality of contact pins of a stator winding and a plurality of contact connections of a set of power electronics to drive the electric machine;

a second interconnection element configured to establish electrical contact between the plurality of contact pins of the stator winding, the second interconnection element configured in a plane perpendicular to a rotational axis of the electric machine between a first radius and a second radius, the first radius and the second radius extending around the rotational axis, the first radius being smaller than the second radius, the second interconnection element forming three sections on the first radius and two loops between the first radius and the second radius; and

a receiving element configured to center and fix the second interconnection element radially or circumferentially, the receiving element comprising a plurality of centering domes centering and fixing the second interconnection element radially or circumferentially in a force-fit or form-fit, the plurality of centering domes comprising three centering domes, the three centering domes being arranged in one of the two loops, a first and third of the three centering domes circumferentially centering the second interconnection element, a second of the three centering domes radially centering the second interconnection element, the second of the three centering domes being disposed radially outwards of and circumferentially between the first and third of the three centering domes.

11 . The high-voltage terminal according to claim 10 , further comprising a plastic element surrounding the plurality of first interconnection elements at least in sections, wherein the plastic element is configured to center and fix the plurality of first interconnection elements in a materially bonded manner.

12 . The high-voltage terminal according to claim 11 , wherein the plastic element and the receiving element are integrally formed from a single component.

13 . The high-voltage terminal according to claim 10 , wherein the plurality of centering domes are cylindrical.

14 . The high-voltage terminal according to claim 10 , wherein at least one of the plurality of first interconnection elements has a connection region to the plurality of contact connections of the set of power electronics, wherein the connection region and the set of power electronics are configured to establish a connection by a screw connection.

15 . The high-voltage terminal according to claim 10 , further comprising a mounting element configured to center and fix the high-voltage terminal on an element of the electric machine.

16 . The high-voltage terminal according to claim 15 , wherein the mounting element comprises a bushing with a centering collar.

17 . An electric machine comprising:

a stator comprising a high-voltage terminal comprising:

a plurality of first interconnection elements configured to establish electrical contact between a plurality of contact pins of a stator winding and a plurality of contact connections of a set of power electronics to drive the electric machine;

a second interconnection element configured to establish electrical contact between the plurality of contact pins of the stator winding to generate a star phase, the second interconnection element configured in a plane perpendicular to a rotational axis of the electric machine between a first radius and a second radius, the first radius and the second radius extending around the rotational axis, the first radius being smaller than the second radius, the second interconnection element forming three sections on the first radius and two loops between the first radius and the second radius; and

a receiving element configured to center and fix the second interconnection element radially or circumferentially, the receiving element comprising a plurality of centering domes centering and fixing the second interconnection element radially or circumferentially in a force-fit or form-fit, the plurality of centering domes comprising three centering domes, the three centering domes being arranged in one of the two loops, a first and third of the three centering domes circumferentially centering the second interconnection element, a second of the three centering domes radially centering the second interconnection element, the second of the three centering domes being disposed radially outwards of and circumferentially between the first and third of the three centering domes.

18 . The electric machine according to claim 17 , wherein the plurality of centering domes are cylindrical.