Method of manufacturing stator and device for manufacturing stator

Patent metadata

Field	Value
Publication number	US-11894734-B2
Application number	US-202217705945-A
Country	US
Kind code	B2
Filing date	Mar 28, 2022
Priority date	Nov 16, 2021
Publication date	Feb 6, 2024
Grant date	Feb 6, 2024

Abstract

Provided is a device for manufacturing a stator, the device including a winding jig configured to wind a coil and to manufacture a winding coil, and an insertion jig configured to receive the winding coil from the winding jig and to insert the winding coil into a stator core, wherein the winding jig comprises a body extending along a longitudinal direction (L 1 ), a power supply unit configured to make the body revolve around a central shaft of the body, and a protrusion formed on a surface of the body.

First claim

What is claimed is:

1. A device for manufacturing a stator, the device comprising:
a winding jig configured to wind coils around the winding jig to manufacture winding coils to be inserted into the stator; and
an insertion jig configured to receive the winding coils from the winding jig and to insert the winding coils into a stator core to manufacture the stator,
wherein the winding jig comprises:
a body extending along a longitudinal direction and a central shaft protruding from one end of the body in the longitudinal direction;
wherein the body is configured to be revolved around the central shaft to wind the winding coils around a circumference of the body of the winding jig extending perpendicular to the longitudinal direction; and
a protrusion protruding outward from facing surfaces on opposite sides of the body and extending in the circumferential direction of the body so as to separate the winding coils wound around the winding jig.

2. The device of claim 1 , wherein the protrusion has a closed curve shape that extends along the circumferential direction of the body.

3. The device of claim 1 , wherein the protrusion has an open curve shape that extends along the circumferential direction of the body.

4. The device of claim 1 , wherein the protrusion is provided in plurality, and
the plurality of protrusions are spaced apart from each other along the longitudinal direction of the body.

5. The device of claim 1 , wherein the protrusion comprises an upper surface and a lower surface, and
the upper surface comprises an upper inclined section inclined downward in a width direction of the body.

6. The device of claim 5 , wherein the upper inclined section is formed at an end of the upper surface away from the body in the width direction.

7. The device of claim 5 , wherein the lower surface comprises a lower horizontal section extending horizontally along the width direction of the body.

8. The device of claim 1 , wherein the insertion jig comprises:
a first region having a first recessed portion disposed therein; and
a second region coupled to one side of the first region and having a second recessed portion disposed therein.

9. The device of claim 8 , wherein each of the first region and the second region comprises
an upper portion provided in each of upper zones of the first region and the second region; and
a lower portion provided in each of the lower zones of the first region and the second region and being connected to the upper portion, respectively,
wherein the first recessed portion is formed in the lower portion provided in the first region, and
wherein the second recessed portion is formed in the lower portion provided in the second region.

10. The device of claim 9 , wherein the first region and the first recessed portion extend longitudinally in a radial direction of a virtual circle, and
the second region and the second recessed portion extend longitudinally in the radial direction of the virtual circle.

11. The device of claim 10 , wherein the first recessed portion or the second recessed portion is configured such that an inner width of an inner region in the radial direction is different from an inner width of an outer region in the radial direction.

12. The device of claim 10 , wherein the first recessed portion or the second recessed portion is configured such that an inner width of an inner region in the radial direction is greater than an inner width of an outer region in the radial direction.

13. The device of claim 10 , wherein the first region or the second region comprises a protrusion section formed at an end of the outer region in the radial direction and protrudes toward the first recessed portion or the second recessed portion, respectively.

14. The device of claim 13 , wherein the protrusion section is provided on each of two inner surfaces defining the first recessed portion in the first region facing each other in a circumferential direction of the virtual circle, or is provided on each of two inner surfaces defining the second recessed portion in the second region facing each other in the circumferential direction of the virtual circle.

15. The device of claim 10 , wherein widths of two outer surfaces of the lower portion provided in the first region and the second region face each other in a circumferential direction of the virtual circle and are formed uniformly along the radial direction of the first region and the second region.

Assignees

• Hyundai Mobis Co Ltd
• Hayashi Kogyosyo Co Ltd

Inventors

• Kim Yong Ho
• Koo Min Mo
• Kajita Ko

Classifications

• H02K15/021 Primary

  Magnetic cores · CPC title

• H02K15/0432 Primary

  Distributed windings · CPC title

• H02K15/043

  winding flat conductive wires or sheets · CPC title

• H02K15/0431 Primary

  Concentrated windings · CPC title

• H02K15/066

  inserted perpendicularly to the axis of the slots or inter-polar channels · CPC title