Transformers

Patent metadata

Field	Value
Publication number	US-2016118181-A1
Application number	US-201514925774-A
Country	US
Kind code	A1
Filing date	Oct 28, 2015
Priority date	Oct 28, 2014
Publication date	Apr 28, 2016
Grant date	—

Abstract

A transformer may comprise a winding wrapped around a magnetic core, the winding having at least one winding portion extending between the magnetic core and the exterior of the winding in radial direction. The winding may comprise at least a first conductor and at least a second conductor, arranged radially adjacent to each other in each winding portion with the interposition of an insulating layer, wherein the first conductor is arranged radially inwardly with respect to the second conductor for part of each winding portion length, and radially outwardly with respect to the second conductor for another part of each winding portion length.

First claim

1 . A transformer comprising:
a winding and a magnetic core, the winding being wrapped around the magnetic core, the winding having at least one winding portion extending between the magnetic core and the exterior of the winding in a radial direction, the winding comprising at least a first conductor and at least a second conductor and an insulating layer, the first and second conductors being arranged radially adjacent to each other in each winding portion with the interposition of the insulating layer therebetween, wherein the first conductor is arranged radially inwardly with respect to the second conductor for part of each winding portion length, and radially outwardly with respect to the second conductor for another part of each winding portion length.

2 . (canceled)

3 . (canceled)

4 . (canceled)

5 . (canceled)

6 . (canceled)

7 . A transformer according to claim 1 , wherein the first conductor and the second conductor comprise one or more guide channels, the guide channels of the first conductor being configured to fit with the guide channels of the second conductor and the guide channels of the second conductor being configured to allow the first conductor to pass at least in part through the second conductor.

8 . A transformer according to claim 1 , wherein the first conductor and the second conductor are made of Aluminium or Copper.

9 . (canceled)

10 . A transformer according to claim 1 , wherein the widths in the radial direction of the first conductor and the second conductor are one or both between 0.05 and 10 mm 0.5 to 3 mm.

11 . A transformer according to claim 10 , wherein the widths in the radial direction of each of the first conductor and the second conductor are substantially different from each other.

12 . A transformer according to claim 1 , wherein the heights in the axial direction of the first conductor and the second conductor are one or both between 10 and 3000 mm and 20 to 1600 mm.

13 . A transformer according to claim 12 , wherein the heights in the axial direction of each of the first conductor and the second conductor are substantially different from each other.

14 . A transformer according to claim 1 , wherein each winding portion is a disc, the first conductor is a first strip and the second conductor is a second strip and the first strip is arranged radially inwardly with respect to the second strip for part of each disc length, and radially outwardly with respect to the second strip for another part of each disc length.

15 . A transformer according to claim 1 , wherein one winding portion is a foil, the first conductor being a first conductor foil and the second conductor being a second conductor foil and the first conductor foil being arranged radially inwardly with respect to the second conductor foil for part of the foil length, and radially outwardly with respect to the second conductor foil for another part of the foil length.

16 . A transformer comprising:
a winding and a magnetic core, the winding wrapped around the magnetic core, the winding having at least one winding portion extending between the magnetic core and the exterior of the winding in a radial direction, the winding comprising at least a first conductor and at least a second conductor and an insulating layer, the first and second conductors being arranged radially adjacent to each other in each winding portion with the interposition of the insulating layer, wherein the first conductor is arranged radially inwardly with respect to the second conductor for part of each winding portion length, and radially outwardly with respect to the second conductor for another part of each winding portion length, wherein the first conductor is discontinuous along the length of each winding portion, and, the first conductor comprising a first intermediate end and a second intermediate end.

17 . A transformer according to claim 16 , wherein the first intermediate end and the second intermediate end are connected together and the first conductor is passed at least in part from one side of the second conductor to the other side of the second conductor.

18 . A transformer according to claim 17 , wherein the second intermediate end comprises a plurality of holes and the first intermediate end comprises a plurality of fasteners configured to be respectively each fitted into a corresponding one of the plurality of holes.

19 . A transformer according to claim 17 , comprising a first socket welded to the first intermediate end and a second socket welded to the second intermediate end, each socket having a first leg, a second leg and one or more bight portions joining the first and second legs to each other.

20 . A transformer according to claim 19 , wherein the first and the second sockets are made of Aluminum or Copper.

21 . A transformer comprising:
a winding and a magnetic core, the winding wrapped around the magnetic core, the winding having at least one winding portion extending between the magnetic core and the exterior of the winding in a radial direction, the winding comprising at least a first conductor and at least a second conductor and an insulating layer, the first and second conductors being arranged radially adjacent to each other in each winding portion with the interposition of the insulating layer therebetween, wherein the first conductor is arranged radially inwardly with respect to the second conductor for part of each winding portion length, and radially outwardly with respect to the second conductor for another part of each winding portion length, and, wherein the first conductor and the second conductor are made of different materials.

22 . A transformer according to claim 21 , wherein the widths in the radial direction of the first conductor and the second conductor are one or both between 0.05 and 10 mm and 0.5 to 3 mm.

23 . A transformer according to claim 22 , wherein the widths in the radial direction of each of the first conductor and the second conductor are substantially different from each other.

24 . A transformer according to claim 21 , wherein the heights in the axial direction of the first conductor and the second conductor are one or both between 10 and 3000 mm and 20 to 1600 mm.

25 . A transformer according to claim 24 , wherein the heights in the axial direction of each of the first conductor and the second conductor are substantially different from each other.

26 . A transformer according to claim 21 , wherein each winding portion is a disc, the first conductor is a first strip and the second conductor is a second strip and the first strip is arranged radially inwardly with respect to the second strip for part of each disc length, and radially outwardly with respect to the second strip for another part of each disc length.

Assignees

• Abb Technology Ag

Inventors

• Murillo Rafael
• Nogués Barrieras Antonio
• Estella Pilar
• Marqués Saldaña Pedro
• Martín Carlos Roy
• Cebrián Lles Lorena
• Sánchez Luis

Classifications

• H01F27/24

  Magnetic cores · CPC title

• H01F2027/2838

  using transposed wires · CPC title

• H01F27/2823 Primary

  Wires (H01F27/2866 takes precedence) · CPC title

• H01F27/2847 Primary

  Sheets; Strips (H01F27/2866 takes precedence) · CPC title