Method for producing electric motor and electric motor

Abstract

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 (9') 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 peripheralsurface 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 surfaceof 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 the electric motor (1) with the 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).

Description

Technical field [0001] The present invention relates to a method for manufacturing an electric motor, in particular an electric motor that can be used as a drive machine for a motor vehicle, with a winding that has a winding head and is configured as a wave winding distribution and has a winding or a winding for detecting Temperature sensor for head temperature. Furthermore, the present invention relates to such an electric motor. Background technique [0002] It is generally known that the electric motor must be protected from overheating in order in particular to avoid damage to the windings and / or negative damage to the magnets. This is usually promoted by the fact that the temperature of the motor is monitored directly or indirectly at one or more locations and measures are taken from a preset temperature in order to resist further temperature increases. In most cases, this is achieved through control or regulation by means of power electronics. [0003] The winding head is ...

AI Technical Summary

Problems solved by technology

As a result, temperature sensors cannot be easily inserted between the coil layers of the winding

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