Magnet pole for magnetic levitation vehicles

• US 7,911,312 B2
• Filed: 02/05/2005
• Issued: 03/22/2011
• Est. Priority Date: 03/09/2004
• Status: Active Grant

• Current Assignee: thyssenkrupp Transrapid GmbH (Thyssenkrupp AG)
• Original Assignee: thyssenkrupp Transrapid GmbH (Thyssenkrupp AG)
• Inventors: Miller, Luitpold, Hahn, Wolfgang, Zheng, Qinghua
• Primary Examiner(s): Mai; Anh T
• Assistant Examiner(s): BAISA, JOSELITO SASIS
• Application Number:
  US10/584,897
• Publication Number:
  US 20090174511A1
• Time in Patent Office: 2,236 Days
• Field of Search: 336/230, 336/231, 336/213, 336/222, 336/223, 336/225
• US Class Current: 336/223
• CPC Class Codes: B60L 13/04 Magnetic suspension or levitation for vehicles
• CPC Class Codes: B60L 2200/26 Rail vehicles

Abstract

A magnetic pole for magnetic levitation vehicles is described which pole comprises a core (1) and a winding (16) applied on it in form of a disc which is formed by a conductor strip (17) wound in several layers (10a) . . . 10k) around said core (1). According to the present invention, the conductor strip (17) is properly tailor-cut at its longitudinal rims (17a, 17b) so that its width increases from said core (1) towards the outside until it reaches a maximum value (b2).

Claims

1. A magnetic pole for magnetic levitation vehicles, comprising a core (1) with a center axis (5) and a winding (16) in form of a disk having multiple of layers (10) in a radial direction applied on the core (1), said winding being formed by a conductor strip (17) wound around said core (1) to form said multiple layers (10), wherein said conductor strip (17) at its longitudinal rims (17a, 17b) placed at a distance in a direction of the center axis (5) is so tailor-cut that its width increases steadily from the core (1) towards an outside until the width reaches a maximum value (b2).

2. A magnetic pole according to claim 1, wherein the maximum value (b2) of the width, viewed in a longitudinal direction of the conductor strip (17) is reached after a length that corresponds to a number of layers (10) which is smaller than a number of said multiple layers (10) provided in total (10a . . . 10k).

3. A magnetic pole according to claim 2 wherein the maximum value (b2) of the width is reached after a length of the conductor strip band (17) that corresponds to substantially ten layers (10).

4. A magnetic pole according to claim 1, wherein the longitudinal rims (17a, 17b) of said conductor strip (17) are mirror-symmetrically tailor-cut with respect to a longitudinal axis (18) extending perpendicularly to the center axis (5) of said conductor strip (17).

5. A magnetic pole according to claim 1, wherein the longitudinal rims (17a, 17b) are tailor-cut along straight lines (18, 19).

6. A magnetic pole according to claim 1, wherein the longitudinal rims (17a, 17b) are tailor-cut along continuous curves (20, 21).

7. A magnetic pole according to claim 1, wherein said core (1) at its shell surface is wrapped by an insulation layer (3) and a partially conductive foil (26) is located between said insulation layer (3) and a layer (10a) of said disc bordering it, said partially conductive foil resting against steps (24, 25) formed between said individual layers (10) being formed by tailor-cutting of said conductor strip (17).

8. A magnetic pole according to claim 1, wherein it is at least one further disc with multiple layers (10) formed of one conductor strip (17), and wherein said conductor strips (17) of all discs are tailor-cut.