Method for implementing low-frequency rotating constant high magnetic field

• US 8,827,885 B2
• Filed: 07/06/2009
• Issued: 09/09/2014
• Est. Priority Date: 07/06/2009
• Status: Active Grant

• Current Assignee: Shenzhen Heng An Hong Yuan Mag-Tech Co., Ltd.
• Original Assignee: Shenzhen Heng An Hong Yuan Mag-Tech Co., Ltd.
• Inventors: Zhang, Gongbi
• Primary Examiner(s): Marmor, II, Charles A
• Assistant Examiner(s): COX, THADDEUS B
• Application Number:
  US13/497,128
• Publication Number:
  US 20120238797A1
• Time in Patent Office: 1,891 Days
• Field of Search: 600/9, 601/15
• US Class Current: 600/9
• CPC Class Codes: A61N 2/12 using variable magnetic fields obtained by mechanical movement
• CPC Class Codes: H01F 7/0294 Detection, inspection, magnetic treatment

Abstract

A method for implementing a low-frequency rotating constant high magnetic field is disclosed. The method includes disposing an even number of more than two high field magnets, and disposing a magnetically permeable rotating arm. The high field magnets are symmetrically and fixedly mounted on the same surface of the magnetically permeable rotating arm. Magnetic poles of free surfaces of two symmetrical high field magnets are opposite. The area of the free surface of the high field magnet is larger than that of a connecting surface. A cross section of the high field magnet is in a geometric shape without edges or corners. A rotating apparatus drives the magnetically permeable rotating arm and the high field magnets to rotate.

Claims

1. A method for implementing a low-frequency rotating constant high magnetic field, comprising:

disposing at least one pair of high field magnets including a first high field magnet and a second high field magnet, and

disposing a magnetically permeable rotating arm,

wherein the first and second high field magnets are symmetrically mounted relative to a rotation axis, the first high field magnet having a first connecting surface, and the second high field magnet having a second connecting surface, both of the first and second connecting surfaces are fixedly mounted on a same surface of the magnetically permeable rotating arm,

wherein the first high field magnet has a first free surface generally opposite to the first connecting surface, and the second high field magnet has a second free surface generally opposite to the second connecting surface, a magnetic pole of the first free surface is opposite to a magnetic pole of the second free surface,

wherein an area of the first free surface is larger than an area of the first connecting surface, and an area of the second free surface is larger than an area of the second connecting surface,

wherein a cross section of the first high field magnet is in a geometric shape without corners, and a cross section of the second high field magnet is in a geometric shape without corners,

wherein a rotating apparatus drives the magnetically permeable rotating arm and the first and second high field magnets to rotate about the rotation axis, and

wherein an area of a cross section of the first high field magnet decreases from the first free surface to the first connecting surface, and an area of a cross section of the second high field magnet decreases from the second free surface to the second connecting surface.

2. The method for implementing a low-frequency rotating constant high magnetic field according to claim 1, wherein the cross section of the first high field magnet is in a shape of a circle or an ellipse, and the cross section of the second high field magnet is in a shape of a circle or an ellipse.

3. The method for implementing a low-frequency rotating constant high magnetic field according to claim 2, wherein each of the first and second high field magnets is in a tapered or a cone shape.

4. The method for implementing a low-frequency rotating constant high magnetic field according to claim 1, wherein each of the first and second high field magnets is in a tapered shape with an ellipse-shaped cross section, in a cone shape with an ellipse-shaped cross section, or in a hemisphere shape with an ellipse-shaped cross section.

5. The method for implementing a low-frequency rotating constant high magnetic field according to claim 3, wherein each of the first and second high field magnets is in a tapered shape with a circle-shaped cross section, in a cone shape with a circle-shaped cross section, or in a hemisphere shape with a circle-shaped cross section.

6. The method for implementing a low-frequency rotating constant high magnetic field according to claim 1, further comprising:

disposing a second pair of high field magnets including a third high field magnet and a fourth high field magnet.

7. The method for implementing a low-frequency rotating constant high magnetic field according to claim 1, wherein the magnetically permeable rotating arm is made of an iron plate with high magnetic permeability.

8. The method for implementing a low-frequency rotating constant high magnetic field according to claim 1, wherein the rotating apparatus is an electrical motor, a mounting hole is opened on a support plate, an electrical motor shaft is inserted in the mounting hole, and a key connection is adopted between the electrical motor shaft and the support plate.