Wound rotor or stator and method for manufacturing same

Patent metadata

Field	Value
Publication number	US-11081944-B2
Application number	US-201916285508-A
Country	US
Kind code	B2
Filing date	Feb 26, 2019
Priority date	Mar 1, 2018
Publication date	Aug 3, 2021
Grant date	Aug 3, 2021

Abstract

A method for manufacturing a wound rotor or stator having more than four poles, preferably a rotor, the rotor or stator having teeth provided with pole shoes. The method includes the following steps, for each pole: (a) producing a partial winding by winding at least one conductor over the portion of the tooth of this pole extending axially along this pole between the pole shoes of this pole and a plane (Pmin) at right angles to the axis of the pole and tangential to a pole shoe of an adjacent pole, (b) pushing back the duly produced partial winding towards the base of the tooth, and freeing said portion of the tooth having been used for the winding, and (c) repeating step (a) to produce another partial winding on the duly released portion of tooth.

First claim

The invention claimed is:

1. A method for manufacturing a wound rotor or stator, the rotor having more than four poles and/or the stator having more than four poles, the rotor or stator comprising teeth provided with pole shoes, the method comprising the following steps, for each pole:
a) producing a partial winding by winding at least one conductor over the portion of the tooth of this pole extending axially along this pole between the pole shoes of this pole and a plane wherein the plane is oriented at right angles to the radial axis of the pole and tangential to a pole shoe of an adjacent pole, b) pushing back the duly produced partial winding towards the base of the tooth, and freeing said portion of the tooth having been used for the winding, c) repeating the step a) to produce another partial winding on the duly released portion of tooth.

2. The method according to claim 1 , comprising the placing of a spacer between the partial windings of one and the same pole.

3. The method according to claim 1 , the rotor or stator having six poles.

4. The method according to claim 1 , the rotor or stator being wound pole after pole.

5. The method according to claim 1 , each pole comprising only two partial windings.

6. A rotor or stator of a rotating electrical machine with four or more poles, formed by the method of claim 1 , comprising:
teeth provided with pole shoes,
at least two partial windings arranged in the extension of one another on each tooth.

7. The rotor or stator according to claim 6 , having exactly six teeth.

8. The rotor or stator according to claims 6 , comprising a spacer between the two partial windings.

9. The rotor or stator according to claim 8 , the spacer being passed through by at least one ventilation channel.

10. The rotor or stator according to claims 6 , the partial windings being linked electrically in series.

11. The rotor or stator according to claims 6 , a sheet of a material with a low friction coefficient being interposed between the partial windings and the corresponding tooth.

12. The rotor or stator according to claim 6 , each pole having exactly two partial windings.

Assignees

• Leroy Somer Moteurs

Inventors

• Saint-Michel Jacques

Classifications

• H02K15/22

  Shaping or compacting conductors in slots or around salient poles (H02K15/28 takes precedence) · CPC title

• H02K15/08 Primary

  Forming windings by laying conductors into or around core parts · CPC title

• H02K1/14

  Stator cores with salient poles · CPC title

• H02K15/095 Primary

  by laying conductors around salient poles · CPC title

• H02K1/20

  with channels or ducts for flow of cooling medium · CPC title