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AssigneeIshikawajima-Harima Heavy Industries Co., Ltd.
InventorsKazumitsu Hasegawa, Shinichi Ozaki, Toshio Takahashi, Gen Kuwata, Noriyasu Sugitani
Estimating the term…
Stator cores for a homo-polar magnetic bearing, wherein toothed ends of stator cores around a rotor form N poles and S poles adjacent in the axial direction, and the method of manufacturing them. The stator core 10 is provided with protrusions 11 of adjacent N and S poles extended circumferentially so as to be in contact with or in close proximity to each other, and is composed of U-shaped laminated steel sheets interleaved with an insulating material, of which the center side is open when viewed from the centerline side. In addition, the core is composed of a first yoke, a second yoke and a stem unit that is a magnetic body placed and fixed between the yokes, and at least the stem unit is composed of a magnetic material powder, solidified in resin.
In the stator cores for a homo-polar magnetic bearing, wherein the toothed ends of the stator cores surrounding a rotor form N poles and S poles adjacent to each other in the axial direction,
A method of manufacturing cores for a magnetic bearing, comprising;
A method of manufacturing cores for a magnetic bearing, comprising;
In the stator cores for a homo-polar magnetic bearing that supports a rotor (3) with a magnetic supporting surface,
In the stator cores for a magnetic bearing that supports a rotor (3) comprising a supporting surface made of a magnetic material,
Dependencies are inferred from the claim text.
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From the US filing history. Foreign family members aren’t listed.
Backward citations are indexed for grants only.
Details of the magnetic circuit: of stationary parts of the magnetic circuit
For rotary movement: with active support of two degrees of freedom, e.g. radial magnetic bearings
Cores, Yokes, or armatures: made from sheets
Permanent magnets [PM]: magnetic circuits with PM for magnetic field generation
Term end not estimated
1. Technical Field of the Invention
The present invention relates to a structure of a magnetic bearing that supports a rotor without making contact, particularly a stator core for a homo-polar type of magnetic bearing, and a method of manufacturing it.
2. Prior Art
FIGS. 1A through 1C are schematic viewes showing the configuration of a conventional homo-polar magnetic bearing.
FIGS. 2A and 2B show the configuration of the homo-polar magnetic bearing related to the prior application.
FIG. 3 is an isometric view of the stator cores shown in FIG. 2.
Preferred embodiments of the present invention are described below referring to the drawings. Common portions shown in each drawing are identified with the same numbers, and no duplicate descriptions are given.
(First Embodiment)
FIGS. 6A and 6B show stator cores for a magnetic bearing according to the present invention. As shown in the figures, the magnetic bearing incorporates stator cores for a homo-polar magnetic bearing, like that shown in FIG. 13, wherein the toothed ends of the stator cores 10 form N poles and S poles adjacent to each other in the axial direction, and surround a rotor 3.