Stripping method for conductor elements for a hairpin coil

Patent metadata

Field	Value
Publication number	US-12184048-B2
Application number	US-202117463921-A
Country	US
Kind code	B2
Filing date	Sep 1, 2021
Priority date	Sep 2, 2020
Publication date	Dec 31, 2024
Grant date	Dec 31, 2024

Abstract

A method of manufacturing a plurality of conductor elements includes providing the plurality of conductor elements, each conductor element includes a conductor end section having an electrically insulating surface coating; securing the conductor end sections of the conductor elements with respect to each other; and simultaneously removing at least a portion of the electrically insulating surface coatings of the conductor end sections using a machining surface of a stripping tool being moved along the conductor end sections.

First claim

What is claimed is:

1. A method of manufacturing a plurality of conductor elements, the method comprising:
providing the plurality of conductor elements, each conductor element including a conductor end section having an electrically insulating surface coating;
securing the conductor end sections of the conductor elements with respect to each other using a mask;
simultaneously removing at least a portion of the electrically insulating surface coatings of the conductor end sections using a machining surface of a stripping tool being moved along the conductor end sections; and
moving the conductor end sections with respect to the machining surface during simultaneously removing the at least a portion of the electrically insulating surface coatings of the conductor end sections,
wherein the stripping tool rotates about an axis of rotation during simultaneously removing the at least a portion of the electrically insulating surface coatings of the conductor end sections.

2. The method according to claim 1 , wherein securing the conductor end sections of the conductor elements with respect to each other comprises inserting the conductor end sections through respective openings formed in the mask such that the conductor end sections protrude through the respective openings.

3. The method according to claim 2 , wherein the conductor end sections extend parallel to each other prior to the conductor end sections being secured with respect to each other, and wherein the machining surface extends oblique with respect to the conductor end sections during simultaneously removing the at least a portion of the electrically insulating surface coatings of the conductor end sections with the machining surface.

4. The method according to claim 1 , wherein the conductor end sections extend parallel to each other prior to the conductor end sections being secured with respect to each other, and wherein the machining surface extends oblique with respect to the conductor end sections during simultaneously removing the at least a portion of the electrically insulating surface coatings of the conductor end sections with the machining surface.

5. The method according to claim 4 , wherein the conductor elements further comprise securing sections that are spaced apart from and opposed to the conductor end sections, and wherein the securing sections are secured with respect to each other by a securing device.

6. The method according to claim 1 , wherein the conductor end sections are held parallel to each other during simultaneously removing the at least a portion of the electrically insulating surface coatings of the conductor end sections such that positions of the conductor end sections move with respect to the machining surface.

7. The method according to claim 1 , wherein the conductor elements further comprise securing sections that are spaced apart from the conductor end sections, and wherein the securing sections are secured with respect to each other by a securing device.

8. The method according to claim 1 , wherein each conductor element further comprises a securing end section that opposes the conductor end section.

9. The method according to claim 1 , wherein:
securing the conductor end sections of the conductor elements with respect to each other comprises inserting the conductor end sections through respective openings formed in the mask such that the conductor end sections protrude through the respective openings;
the conductor elements further comprise securing sections that are spaced apart from the conductor end sections, the securing sections are secured with respect to each other by a securing device; and
one of the mask or the securing device moves in a circular path relative to the other of the mask or the securing device during simultaneously removing the at least a portion of the electrically insulating surface coatings of the conductor end sections such that positions of the conductor end sections move with respect to the securing device.

10. The method according to claim 9 , wherein the conductor end sections are positioned adjacent to a machining plane, and wherein the machining plane extends parallel to the one of the mask or the securing device moving in the circular path.

11. The method according to claim 1 , wherein the conductor end sections are positioned adjacent to a machining plane, and wherein the machining plane extends parallel to one of the mask or a securing device moving in a circular path.

12. The method according to claim 1 , wherein the machining surface is flat.

13. A method of manufacturing a plurality of conductor elements, the method comprising:
providing the plurality of conductor elements, each conductor element including a conductor end section and a securing end section that is spaced apart from and opposed to the conductor end section, the conductor end section having an electrically insulating surface coating;
securing the securing end sections of the conductor elements with respect to each other;
securing the conductor end sections of the conductor elements with respect to each other using a mask; and
simultaneously removing at least a portion of the electrically insulating surface coatings of the conductor end sections using a machining surface of a stripping tool being moved along the conductor end sections,
moving the conductor end sections with respect to the machining surface during simultaneously removing the at least a portion of the electrically insulating surface coatings of the conductor end sections,
wherein the stripping tool rotates about an axis of rotation during simultaneously removing the at least a portion of the electrically insulating surface coatings of the conductor end sections.

14. The method according to claim 13 , wherein securing the conductor end sections of the conductor elements with respect to each other comprises inserting the conductor end sections through respective openings formed in the mask such that the conductor end sections protrude through the respective openings.

15. The method according to claim 13 , wherein the conductor end sections extend parallel to each other prior to the conductor end sections being secured with respect to each other, and wherein the machining surface extends oblique with respect to the conductor end sections during simultaneously removing the at least a portion of the electrically insulating surface coatings of the conductor end sections with the machining surface.

16. The method according to claim 13 , wherein the conductor end sections are positioned adjacent to a machining plane, and wherein the machining plane extends parallel to one of the mask or a securing device moving in a circular path.

17. The method according to claim 13 , wherein the machining surface is flat.

18. A method of manufacturing a plurality of conductor elements, the method comprising:
providing the plurality of conductor elements, each conductor element including a conductor end section and a securing end section that is spaced apart from and opposed to the conductor end section, the conductor end section having an electrically insulating surface coating;
securing the securing end sections of the conductor elements with respect to each other using a securing device;
securing the conductor end sections of the conductor elements with respect to each other using a mask;
simultaneously removing at least a portion of the electrically insulating surface coatings of the conductor end sections using a machining surface of a stripping tool being moved along the conductor end sections; and
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Assignees

• Ford Global Tech Llc

Inventors

• Baranowski Thomas
• Engelke Julius Maximilian
• Magnani Maira
• Broda Maik
• Koch Raphael
• Mathissen Marcel

Classifications

• H02G1/1265

  the cutting element rotating about the wire or cable (making longitudinal and transverse or helical cut H02G1/1268) · CPC title

• H02K15/023

  Cage rotors · CPC title

• H02K3/505

  for large machine windings, e.g. bar windings (H02K3/51 takes precedence) · CPC title

• H02K3/04

  Windings characterised by the conductor shape, form or construction, e.g. with bar conductors · CPC title

• H02G1/127 Primary

  Features relating to cutting elements · CPC title