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1. 发明申请

US20210203212A1 METHOD FOR PRODUCING AN ELECTRIC MOTOR AND ELECTRIC MOTOR 有权
公开(公告)号：US20210203212A1
公开(公告)日：2021-07-01
申请号：US16321627
申请日：2017-06-20
申请人： Martin FUCHS , Johannes Daniel KNÖPPEL , Nils WILHELM , Alex WIST , David MÜLLER
发明人： Martin FUCHS , Johannes Daniel KNÖPPEL , Nils WILHELM , Alex WIST , David MÜLLER
IPC分类号： H02K11/25 , H02K3/50
摘要： The invention relates to a method for producing an electric motor (1) comprising a rotor and a stator (3), the stator (3) thereof comprising a hollow cylindrical stator metal sheet (5) and a distributed winding (6) consisting of a plurality of peripheral coil layers (9, 9′, 9″) arranged one above the other in a layered manner. According to said method, a place holder for a temperature sensor (11) for detecting a temperature of the winding (6) is inserted in the axial direction between a first coil layer (91) and an adjacent second coil layer (9″) of a winding head (7) of the winding (6) in such a way that the place holder is arranged in a gap-like recess extending between the first coil layer (9*) and the second coil layer (9″). The first coil layer (9′) is then pressed onto a peripheral surface of the place holder and onto the second coil layer (9″) and is plastically deformed such that a space between the envelope surfaces of the two coil layers (9′, 9″) and the peripheral surface of the place holder is reduced and an abutment surface between the envelope surface of the first coil layer (9′) and the peripheral surface of the place holder is enlarged. Subsequently, a receiving chamber (10) is formed in the winding head (7) by the removal of the place holder, into which a temperature sensor (11) is then inserted. The invention also relates to an electric motor (1) with a temperature sensor (11) which is inserted into a receiving chamber (10) in the winding head (7) of a distributed winding (6) of the stator (3).

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