MAGNETIC COMPONENTS AND METHODS FOR MAKING SAME

• US 20150287519A1
• Filed: 04/02/2014
• Published: 10/08/2015
• Est. Priority Date: 04/02/2014
• Status: Active Grant

• Current Assignee: Vishay Dale Electronics, LLC (Vishay Intertechnology Incorporated)
• Original Assignee: Vishay Dale Electronics (Vishay Intertechnology Incorporated)
• Inventors: Bodenstedt, Steven R., Jensen, Brian J.
• Granted Patent: US 10,026,540 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: B23K 26/38 by boring or cutting
• CPC Class Codes: H01F 27/2847 Sheets; Strips H01F27/2866 takes precedence
• CPC Class Codes: H01F 41/04 for manufacturing coils coils for transformer or inductances H01F27/28
• CPC Class Codes: H01F 41/06 Coil winding
• CPC Class Codes: H01F 5/00 Coils superconducting coils H01F6/06; fixed inductances of the signal type H01F17/00
• CPC Class Codes: Y10T 29/4902 Electromagnet, transformer or inductor

Abstract

Magnetic components and a method for making them are described. A conducting material may be cut using a high power laser such as, but not limited to, a rare-earth fiber laser such as a Ytterbium fiber laser. Alternatively, a conducting material may be cut using an abrasive water jet. The magnetic components may be planar.

Claims

1. A magnetic component shaped by laser cutting of an electrically conducting material.

2. The magnetic component of claim 1, wherein the electrically conducting material comprises copper or an alloy of copper.

3. The magnetic component of claim 1, comprising a winding of an inductor or a winding of a transformer.

4. The magnetic component of claim 1 configured as a planar magnetic component.

5. The magnetic component of claim 1, wherein a spacing between neighboring turns is 250 micrometers (0.010 inches) or greater.

6. A magnetic component shaped by abrasive water-jet cutting of an electrically conducting material.

7. The magnetic component of claim 6, wherein the electrically conducting material comprises copper or an alloy of copper.

8. The magnetic component of claim 6 shaped by simultaneously cutting a plurality of sheets in a stack.

9. The magnetic component of claim 6, comprising a winding of an inductor or a winding of a transformer.

10. The magnetic component of claim 6 configured as a planar magnetic component.

11. The magnetic component of claim 6, wherein a spacing between neighboring turns is 250 micrometers (0.010 inches) or greater.

12. A method of fabricating a magnetic component comprising cutting the magnetic component from electrically conducting material using laser cutting.

13. The method of claim 12, comprising cutting a spacing between neighboring turns of 250 micrometers (0.010 inches) or greater.

14. The method of claim 12, wherein the electrically conducting material comprises copper or an alloy of copper.

15. The method of claim 12, comprising cutting the magnetic component from planar electrically conducting material.

16. The method of claim 12, wherein the electrically conducting material is obtained from a roll or a sheet.

17. The method of claim 12, further comprising including the magnetic component as a winding in an inductor or in a transformer.

18. A method of fabricating a magnetic component comprising cutting the magnetic component from electrically conducting material using abrasive water-jet cutting.

19. The method of claim 18, comprising cutting a spacing between neighboring turns of 250 micrometers (0.010 inches) or greater.

20. The method of claim 18, wherein the electrically conducting material being cut comprises a plurality of sheets.

21. The method of claim 18, wherein the electrically conducting material comprises copper or an alloy of copper.

22. The method of claim 18, comprising cutting the magnetic component from planar electrically conducting material.

23. The method of claim 18, wherein the electrically conducting material is obtained from a roll or a sheet.

24. The method of claim 18, further comprising including the magnetic component as a winding in an inductor or in a transformer.