Magnetic levitation weight reduction structure for a vertical wind turbine generator

• US 7,462,950 B2
• Filed: 01/19/2007
• Issued: 12/09/2008
• Est. Priority Date: 01/19/2007
• Status: Expired due to Fees

• Current Assignee: Suey-Yueh Hu
• Original Assignee: Suey-Yueh Hu
• Inventors: Hu, Suey-Yueh
• Primary Examiner(s): GONZALEZ, JULIO C
• Application Number:
  US11/625,262
• Publication Number:
  US 20080174119A1
• Time in Patent Office: 690 Days
• Field of Search: 290/1.R, 290/43, 290/44, 290/54, 290/55, 603/98, 416/132.B, 415/4.2
• US Class Current: 290/55
• CPC Class Codes: F03D 80/70 Bearing or lubricating arrangements
• CPC Class Codes: F05B 2240/211 with vertical axis
• CPC Class Codes: F05B 2240/511 with permanent magnets
• CPC Class Codes: F16C 2300/14 Large applications, e.g. bearings having an inner diameter exceeding 500 mm
• CPC Class Codes: F16C 2300/34 Vertical, e.g. bearings for supporting a vertical shaft
• CPC Class Codes: F16C 2360/31 Wind motors
• CPC Class Codes: F16C 39/066 with opposing permanent magnets repelling each other
• CPC Class Codes: H01F 7/0236 Magnetic suspension or levitation for vehicles B60L13/04; magnetic bearings F16C39/063
• CPC Class Codes: Y02E 10/72 Wind turbines with rotation axis in wind direction

Abstract

A magnetic levitation weight reduction structure for a vertical wind turbine generator includes a frame, a fixed permanent magnet, an axle, a revolving permanent magnet, a blade hub, and a generator. The fixed permanent magnet fixed to the frame has a first repulsive surface. The axle is connected to the frame. The revolving permanent magnet fixed to the axle has a second repulsive surface in relation to the first repulsive surface of the fixed permanent magnet. Both the first and the second repulsive surfaces repel with each other. The blade hub and the generator are connected to the axle. When the revolving permanent magnet is rotated, the axle functions as a balance center.

Claims

1. A magnetic levitation weight reduction structure for a vertical wind turbine generator, comprising:

a frame;

a fixed permanent magnet fixed to the frame having a first repulsive surface;

an axle connected to the frame comprising a first connecting portion and a second connecting portion;

a revolving permanent magnet secured to the axle having a second repulsive surface in relation to the first repulsive surface of the fixed permanent magnet, the first repulsive surface and the second repulsive surface repelling with each other, the axle functioning as a balance center when the revolving permanent magnet is rotated;

a blade hub connected to the first connecting portion of the axle;

a generator connected to the second connecting portion of the axle;

wherein the fixed permanent magnet and the revolving permanent magnet each has at least one inclined portion, wherein the first repulsive surface and the second repulsive surface correspond to each other, to create a repulsive force so that the axle remains in a vertical position while turning without bias to exaggerate a resistance; and

wherein the fixed permanent magnet and the revolving permanent magnet have a disk shape.

2. A magnetic levitation weight reduction structure for a vertical wind turbine generator as claimed in claim 1, wherein each of the fixed permanent magnet and the revolving permanent magnet has a flat portion and an inclined portion abutting the flat portion.

3. A magnetic levitation weight reduction structure for a vertical wind turbine generator as claimed in claim 1, wherein each of the fixed permanent magnet and the revolving permanent magnet has a flat portion and a vertical portion abutting the flat portion.