Heat sink for a stator housing
View Patent ↗A stator housing assembly for an electric drive machine includes a stator housing with a stator jacket receptacle that includes a cylinder inner jacket for receiving a stator outer jacket as well as a cylinder jacket-shaped outer surface, and includes at least one heat sink that is disposed on the outer surface and is connected thereto at wall edges.
1 . A cooling body configured to abut against an outer surface to be cooled of a stator housing, comprising:
a circumferential wall, wherein a cut-out circumferential region is cut out from the circumferential wall along at least a part of a longitudinal extent thereof as a cutout such that wall edges formed as a result are configured to be brought into abutment against the outer surface of the stator housing.
2 . The cooling body according to claim 1 ,
wherein the circumferential wall is in a form of a flexible fabric and/or plastic tube.
3 . The cooling body according to claim 1 ,
wherein the circumferential wall is formed by a deep-drawn sheet-metal construction.
4 . The cooling body according to claim 1 ,
wherein the wall edges form contact surfaces which are configured to be adhesively bonded and/or fused in a cooling-fluid-tight manner to the outer surface of the stator housing.
5 . The cooling body according to claim 1 ,
wherein the cut-out circumferential region makes up a proportion of between 25% and 60% of an entire circumference.
6 . The cooling body according to claim 5 ,
wherein the cut-out circumferential region makes up a proportion of between 30% and 40% of the entire circumference.
7 . The cooling body according to claim 1 ,
wherein a pliability of the circumferential wall is configured to allow the cooling body to be wound multiple times around the outer surface of the stator housing, wherein the outer surface is in the form of a cylinder shell.
8 . The cooling body according to claim 1 ,
wherein, away from the cut-out circumferential region, a line cross section of the cooling body is part-ellipsoid form, circular-segment-shaped form, prismatic form, or rectangular form.
9 . The cooling body according to claim 1 ,
wherein the cutout has a constant mean circumferential position along the longitudinal extent of the cutout.
10 . The stator-housing arrangement according to claim 9 ,
wherein an entry interface and an exit interface for the cooling fluid are arranged on opposite ends of the cooling body.
11 . The stator-housing arrangement according to claim 9 ,
wherein a conductor of the cooling fluid outside the cooling body is formed away from other constituent parts of the stator housing.
12 . A stator-housing arrangement for an electric drive machine, comprising:
a stator housing with a stator-shell receptacle, said stator-shell receptacle having a cylinder inner shell to accommodate a stator outer shell, and having an outer surface which is in the form of a cylinder shell; and
at least one cooling body according to claim 1 that is arranged on the outer surface of the stator housing and is connected thereto at the wall edges.
13 . The stator-housing arrangement according to claim 12 , wherein the cooling body is wound multiple times around the outer surface of the stator housing in a helical arrangement.
14 . The stator-housing arrangement according to claim 12 , wherein the cooling body is adhesively bonded to the outer surface of the stator housing.
15 . The cooling body according to claim 1 , wherein the circumferential wall is pliable.
16 . The cooling body according to claim 1 , wherein the wall edges form contact surfaces configured to be connected to the outer surface of the stator housing.
17 . The cooling body according to claim 1 , wherein the cooling body forms a cooling channel, and wherein the cutout enables cooling fluid in the cooling body to flow directly along the outer surface of the stator housing.
18 . A method for assembling a stator-house arrangement, comprising:
winding a cooling body and/or pushing on the cooling body in a spread manner around an outer surface of a stator-shell receptacle, wherein the cooling body includes a circumferential wall, wherein a cut-out circumferential region is cut out from the circumferential wall along at least a part of a longitudinal extent thereof as a cutout such that wall edges formed as a result are configured to be brought into abutment against the outer surface of the stator housing; and
adhesively bonding and/or fusing the cooling body to the outer surface.
19 . The method according to claim 18 , wherein the cooling body is wound multiple times around the outer surface of the stator-shell receptacle.
20 . The method according to claim 18 , wherein the outer surface of the stator-shell receptacle is in the form of a cylinder shell.