Winding head, stator tooth, electric motor, and aircraft

A stator tooth for an electric motor, the stator tooth comprising:

• a stator core having a first stator flange and a second stator flange that are joint by a stator joint part, wherein the stator core further has an I-shaped cross section perpendicular to a longitudinal elongation with a first end and a second end;
• a first winding head configured to extend the longitudinal elongation at the first end, the first winding head comprising:
• a first winding head flange and a second winding head flange that are joined by a winding head joint part, the first winding head extending at least partially an elongation of a shape of the stator core;
• a winding hole extending through a body of the first winding head flange, and a winding opening at the winding head joint part, the winding hole and the winding opening being connected by a groove in the winding head joint part;
• and
• a bridging part with a reduced thickness in a direction of a longitudinal elongation of the winding head joint part regarding a thickness of the first winding head flange, the bridging part extending between an outer surface of the first winding head flange and the winding hole in a direction perpendicular to the longitudinal elongation of the winding head joint part;
• a second winding head;
• and
• a winding,
• wherein the first winding head is assembled at the first end of the stator core, and the second winding head is assembled at the second end of the stator core,
• wherein the winding surrounds the stator core, the first winding head, and the second winding head,
• wherein the winding partly runs at the first winding head through the winding hole, the groove, and the winding opening,
• wherein the winding hole extends through the body of the first winding head flange in a direction parallel with the longitudinal elongation of the winding head joint part, and
• wherein the bridging part partially defines a groove in the first winding head flange, the groove in the first winding head flange extending between the outer surface of the first winding head flange and the winding hole.

An electric motor for an aircraft, the electric motor comprising:

• stator teeth, a stator tooth of the stator teeth comprising:
• a stator core having a first stator flange and a second stator flange that are joint by a stator joint part, wherein the stator core further has an I-shaped cross section perpendicular to a longitudinal elongation with a first end and a second end;
• a first winding head configured to extend the longitudinal elongation at the first end, the first winding head comprising:
• a first winding head flange and a second winding head flange that are joined by a winding head joint part, the first winding head extending at least partially an elongation of a shape of the stator core;
• a winding hole extending through a body of the first winding head flange, and a winding opening at the winding head joint part, the winding hole and the winding opening being connected by a groove in the winding head joint part;
• and
• a bridging part with a reduced thickness in a direction of a longitudinal elongation of the winding head joint part regarding a thickness of the first winding head flange, the bridging part extending between an outer surface of the first winding head flange and the winding hole in a direction perpendicular to the longitudinal elongation of the winding head joint part,
• a second winding head;
• and
• a winding,
• wherein the first winding head is assembled at the first end of the stator core, and the second winding head is assembled at the second end of the stator core,
• wherein the winding surrounds the stator core, the first winding head, and the second winding head,
• wherein the winding partly runs at the first winding head through the winding hole, the groove, and the winding opening,
• wherein the winding hole extends through the body of the first winding head flange in a direction parallel with the longitudinal elongation of the winding head joint part, and
• wherein the bridging part partially defines a groove in the first winding head flange, the groove in the first winding head flange extending between the outer surface of the first winding head flange and the winding hole.

An aircraft comprising:

• an electric propulsion system comprising:
• an electric motor comprising:
• stator teeth, a stator tooth of the stator teeth comprising:
• a stator core having a first stator flange and a second stator flange that are joint by a stator joint part, wherein the stator core further has an I-shaped cross section perpendicular to a longitudinal elongation with a first end and a second end;
• a first winding head configured to extend the longitudinal elongation at the first end, the first winding head comprising:
• a first winding head flange and a second winding head flange that are joined by a winding head joint part, the first winding head extending at least partially an elongation of a shape of the stator core;
• a winding hole extending through a body of the first winding head flange, and a winding opening at the winding head joint part, the winding hole and the winding opening being connected by a groove in the winding head joint part;
• and
• a bridging part with a reduced thickness in a direction of a longitudinal elongation of the winding head joint part regarding a thickness of the first winding head flange, the bridging part extending between an outer surface of the first winding head flange and the winding hole in a direction perpendicular to the longitudinal elongation of the winding head joint part,
• a second winding head;
• and
• a winding,
• wherein the first winding head is assembled at the first end of the stator core, and the second winding head is assembled at the second end of the stator core,
• wherein the winding surrounds the stator core, the first winding head, and the second winding head,
• wherein the winding partly runs at the first winding head through the winding hole, the groove, and the winding opening,
• wherein the winding hole extends through the body of the first winding head flange in a direction parallel with the longitudinal elongation of the winding head joint part, and
• wherein the bridging part partially defines a groove in the first winding head flange, the groove in the first winding head flange extending between the outer surface of the first winding head flange and the winding hole.