JPH01144350A - Generator - Google Patents

Abstract

PURPOSE:To generate multiple-phase alternate current of high power output in a miniature equipment, by decentering the rotating shaft of a body of rotation made of a superconductor to be rotated between a coil and a magnet, and by arranging three or more coils around the rotating shaft of the body of rotation in equal intervals. CONSTITUTION:A shaft 31 of a rotating plate 3 made of a superconductor having an eccentric rotating shaft 31 is inserted into the shaft of a motor 5 and releasably supported to a bearing 4 to rotate. By rotating the rotating plate 3 between a magnet 1 and a coil 2 and by arranging three or more coils 2 around the rotating shaft 31 in equal intervals, the flux is caused to generate to the coils 2 intermittently. Multi-phase alternate current of high power output in a miniature equipment is thereby generated.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a generator that uses the Meissner effect of a superconductor to intermittently link magnetic flux to a coil to generate a multiphase AC induced voltage.

[Conventional technology]

FIG. 3 is a schematic diagram showing the configuration of a conventional generator using a superconductor, and numeral 1 in the figure is a magnet.

A coil 2 is arranged in the magnetic flux generated in the magnet 1 with its axis aligned with the direction of the magnetic flux. Further, the rotating plate 3 is a disk made of a superconductor, and its rotating shaft 31 is rotatably held by bearings 4, 4, and the rotating plate 3 is rotationally driven by a drive device 5. FIG. 4 is a diagram showing the shape of the rotary plate 3, in which a plurality of protrusions 6 are arranged at equal intervals on its periphery, and as the rotary plate 3 rotates, these protrusions 6 cause the magnet 1 and the coil 2 to pass between.

That is, each time the rotary plate 3 made of a superconductor rotates and the protrusion 6 passes between the magnet l and the coil 2, the magnetic flux linking the coil 2 is blocked by the Meissner effect of the superconductor, and the protrusion 6 passes. After that, the magnetic flux is linked to the coil again, and this is repeated one after another, and the magnetic flux is intermittently linked to the coil 2.
Generates AC induced voltage by electromagnetic induction.

[Problem that the invention seeks to solve]

Conventional generators with this configuration can only generate single-phase alternating current because they have one coil, and the output voltage is small compared to the size of the device. There was a problem that stress was concentrated on the generator and the durability of the generator was low.

The present invention has been made to solve these problems, and provides a generator that is capable of generating multiphase AC power, has a large output compared to the scale of the device, and has excellent durability. The purpose is to provide.

[Means for solving problems]

The present invention consists of a rotating body made of a superconductor whose rotational axis is eccentric, and three rotating bodies equally distributed around the rotational axis of the rotating body so that the interlinking magnetic flux is blocked according to the rotation angle of the rotating body. The present invention is characterized by comprising the above coils.

[Effect]

According to the present invention, as a rotating body made of a superconductor with an eccentric rotation axis rotates, the long diameter side of the rotating body that reaches each coil sequentially transmits magnetic flux linking to each coil by the Meissner effect, and rotates to the coil. The short diameter side of the body reaches the coils one after another, and the interrupted magnetic flux interlinks with each coil again, generating an AC induced voltage.

〔Example〕

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below based on drawings showing embodiments thereof. FIG. 1 is a schematic diagram showing the configuration of a generator according to the present invention, in which numeral 1 represents a magnet that generates magnetic flux, and coil 2
The same number of coils 2 are provided, and in the magnetic flux generated by each magnet 1, the axis thereof is aligned with the direction of the magnetic flux, and a plurality of coils 2 are equally distributed around a rotation axis 31 of a rotary plate 3, which will be described later.

Fig. 2 is a diagram showing the positional relationship between the rotary plate 3 and the coil 2 as seen from the front of the rotary plate 3. In this embodiment, the number of coils is 31[1i1 of U, V, and W] as shown in Fig. 2. , the coils are equally spaced at 120° intervals around the rotation axis 31 of the rotary plate 3.

Further, the rotating plate 3 is in the shape of a disk made of a superconductor, and its rotating shaft 31 is provided eccentrically by a predetermined length from the center of the disk, and depending on the rotation angle of the rotating plate 3, the longer axis side or the shorter axis side of the rotating plate 3 The side reaches the coil 2 and crosses the magnetic flux linking the coil 2 or leaves the magnetic flux. Further, the bearings 4, 4 hold the rotary shaft 31 so that the rotary plate 3 can rotate freely, and the drive device 5 rotates the rotary plate 3.

Next, the operation of the generator having such a configuration will be explained. The rotating plate 3 is rotated by the drive device 5 around an eccentric rotating shaft 31, and when the long diameter side of the rotating plate 3 reaches one magnet 1, for example, U, the rotating plate 3 made of a superconductor is attached to the coil 2. The interlinking magnetic flux is pushed to the outside of the long axis side of the rotary plate 3 by the Meisner effect and blocked, and then the rotary plate 3 rotates and when the short axis side reaches the magnet U, the pushed magnetic flux interlinks with the coil 2 again. .

As described above, the magnetic flux interlinking with the coil 2 is intermittently interlinked to generate an alternating current by electromagnetic induction, and the magnetic flux is intermittently interlinked with the coil 2 in the other two coils V and - as well. to generate a three-phase alternating current due to electromagnetic induction.

In addition, in this example, the number of coils arranged around the periphery of the rotating plate is 3.
I set it as 1Illll, but it was 3iV! Even if it is A or more, multiphase AC power generation can be realized by arranging three or more.

Further, in this embodiment, the rotating body is shaped like a disc, but the shape is not limited to this, and any shape may be used as long as the rotating body does not concentrate stress at one point.

〔Effect of the invention〕

The generator of the present invention realizes multi-phase AC power generation by disposing multiple coils around the rotating shaft of the rotating body, and can obtain a large output compared to the scale of the device. By doing so, the magnetic flux is intermittently linked to the coil, which eliminates the need for protrusions on the rotating body, and avoids stress concentration on the rotating body, improving the durability of the generator and increasing the speed of power generation. It has excellent effects.

[Brief Description of the Drawings] Fig. 1 is a schematic diagram showing the configuration of a generator according to the present invention, Fig. 2 is a schematic diagram showing the configuration of a generator according to the present invention;
The figure shows the positional relationship between the rotating plate and the coil, FIG. 3 is a schematic diagram showing the configuration of a conventional generator using a superconductor, and FIG. 4 is a front view of the rotating plate. l...Magnet 2...Coil 3...Rotating plate 4.
... Bearing 5 ... Drive device 31 ... Rotating shaft In the drawings, the same reference numerals indicate the same or equivalent parts.

Claims (1)

[Claims] 1. In a generator that generates an AC induced voltage by rotating a rotating body made of a superconductor between a coil and a magnet and interlinking magnetic flux with the coil intermittently, the rotating shaft is A generator comprising: an eccentric rotating body; and three or more coils equally distributed around the rotation axis of the rotating body so that the magnetic flux is blocked according to the rotation angle of the rotating body. .