CONNECTING DEVICE BETWEEN STATOR WINDING AND CONTROL DEVICE OF AN ELECTRICAL MACHINE
A connecting device having current rails ( 8 - 12 ) that produce an electrical connection between the stator winding and associated contact sites ( 35 - 39 ) of an electrical control device ( 6 ) of an electrical machine ( 1 ), the electrical control device being provided for controlling the stator winding, wherein the connecting device ( 5 ) comprises current rails ( 8 - 12 ) that protrude at the stator winding ends ( 18 - 22 ) in a parallel manner with respect to the middle axis of the electrical machine ( 1 ) and the current rails ( 8 - 12 ) lie in guide channels ( 32 - 34 ) that are arranged on a connection plate ( 31 ) that is embodied from an electrically non-conductive material.
1 . A connecting device having current rails ( 8 - 12 ) that produce an electrical connection between a stator winding and associated contact sites ( 35 - 39 ) of an electrical control device ( 6 ) of an electrical machine ( 1 ), said electrical control device being configured for controlling the stator winding, wherein the current rails ( 8 - 12 ) protrude at stator winding ends ( 18 - 22 ) in a parallel manner with respect to a middle axis of the electrical machine ( 1 ), and wherein the current rails ( 8 - 12 ) lie in guide channels ( 32 - 34 ) that are arranged on a connection plate ( 31 ) that is made of an electrically non-conductive material.
2 . The connecting device according to claim 1 , wherein each of the current rails ( 8 - 12 ) comprise at an end facing a stator winding end ( 18 - 22 ) a clamping element ( 13 - 17 ) with which the current rail ( 8 - 12 ) is fixedly clamped to the stator winding end ( 18 - 22 ).
3 . The connecting device according to claim 2 , wherein the clamping element ( 13 - 17 ) protrudes as a sheet metal bracket at an angle from the current rails ( 8 - 12 ).
4 . The connecting device according to claim 1 , wherein the guide channels ( 32 - 34 ) encompass with a small amount of play the current rails ( 8 - 12 ) that are lying in said guide channels.
5 . The connecting device according to claim 1 , wherein each of the current rails ( 8 - 12 ) is welded to a respective associated stator winding end ( 18 - 22 ).
6 . The connecting device according to claim 1 , wherein an angle position of the stator winding ends ( 18 - 22 ) that protrude at the stator winding in an axis-parallel manner with respect to the middle axis of the electrical machine ( 1 ) corresponds essentially to an angle position of the associated contact site of the control device ( 6 ).
7 . The connecting device according to claim 1 , wherein the stator winding ends ( 18 - 22 ) have a small radial spacing with respect to respective associated contact sites ( 35 - 39 ).
8 . The connecting device according to claim 1 , wherein all current rails ( 8 - 12 ) are identically embodied sheet metal parts.
9 . The connecting device according to claim 1 , wherein each current rail ( 8 - 12 ) is a straight sheet metal strip with a clamping element ( 13 - 17 ) formed thereon.
10 . The connecting device according to claim 3 , wherein the guide channels ( 32 - 34 ) encompass with a small amount of play the current rails ( 8 - 12 ) that are lying in said guide channels.
11 . The connecting device according to claim 10 , wherein each of the current rails ( 8 - 12 ) is welded to a respective associated stator winding end ( 18 - 22 ).
12 . The connecting device according to claim 11 , wherein an angle position of the stator winding ends ( 18 - 22 ) that protrude at the stator winding in an axis-parallel manner with respect to the middle axis of the electrical machine ( 1 ) corresponds essentially to an angle position of the associated contact site of the control device ( 6 ).
13 . The connecting device according to claim 12 , wherein the stator winding ends ( 18 - 22 ) have a small radial spacing with respect to respective associated contact sites ( 35 - 39 ).
14 . The connecting device according to claim 13 , wherein all current rails ( 8 - 12 ) are identically embodied sheet metal parts.
15 . The connecting device according to claim 14 , wherein each current rail ( 8 - 12 ) is a straight sheet metal strip with a clamping element ( 13 - 17 ) formed thereon.