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Method for producing an electric motor, and apparatus

A technology of electric motors and longitudinal direction, which is applied in the field of manufacturing electric motors, which can solve the problems of equipment cost and complex structure, and achieve high flexibility, prevent axial movement or sliding, and simple forming

Pending Publication Date: 2021-03-23
BAYERISCHE MOTOREN WERKE AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the proposed method and device are complicated or complicated to construct

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  • Method for producing an electric motor, and apparatus
  • Method for producing an electric motor, and apparatus
  • Method for producing an electric motor, and apparatus

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Embodiment Construction

[0041] figure 1 A coil core 10 is shown schematically in a side view, wherein the coil core 10 shown here is, for example, a stator of an electric machine. The stator extends along a longitudinal axis or axis of rotation or stator axis L. The slot insulation 16 is inserted into the coil core 10 , the length of the slot insulation 16 being selected such that the slot insulation forms defined projections 24 at both end faces of the coil core 10 . The first layer 21 of the conductor element is introduced in the arrangement direction A into the slot insulation 16 or into a groove, which is not visible in the present sketch. In order to prevent displacement of the slot insulator 16 in the installation direction A when the first layer 21 is inserted, a retaining element 30 is advantageously provided on the end side, which can be designed, for example, as a simple disk, in particular a circular disk.

[0042] figure 2 In particular showing how placement has been made by figure 1...

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Abstract

The invention relates to a method for producing an electric motor having at least one coil, comprising the steps of: providing a coil core (10), the coil core (10) having at least one groove which extends in a longitudinal direction (L) of the coil core (10); introducing a groove insulation (16) into the at least one groove in such a way that the groove insulation projects beyond the coil core (10) in the longitudinal direction (L) and forms a projection (24); introducing conductor material (21) in layers into the at least one groove; using a first layer of conductor material (21) to retain the groove insulation in the region of the projection (24) during introduction of at least one further layer.

Description

technical field [0001] The invention relates to a method and a device for producing an electric motor. Background technique [0002] Insulating material is used to insulate the slots of the stator or rotor of the electric motor, which is inserted into the slots. These insulating materials are, for example, films made of different materials. However, when the conductor elements are introduced or pulled into the stator or rotor, a problem that can arise here is slippage of the sensitive slot insulation. In particular, in electric motors using profiled rod technology, the insulation can be displaced due to force influences when the profiled rod is introduced into the slot. In this regard, a device and a method are known from WO 2015 / 055445 A2 which prevent axial displacement of the slot insulator when the profiled rod is introduced. However, the proposed method and device are complex or complex in design. Contents of the invention [0003] It is therefore the object of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K15/06H02K15/10H02K3/12H02K3/34
CPCH02K15/10H02K3/12H02K3/345H02K15/067
Inventor M·霍尔茨海
Owner BAYERISCHE MOTOREN WERKE AG