JPH0217855A - Power generation set - Google Patents

Abstract

PURPOSE:To increase the degree of freedom by providing a pole piece structure, a yoke piece structure and a winding member, and adding the electromotive forces of windings as generated power. CONSTITUTION:A pole piece structure 1 of columnar profile is coaxially inserted into an epoxy cylinder 2, and so composed as to coaxially laminating disclike soft magnetic pieces a1-a6 and permanent magnets b1-b5, and to dispose soft magnetic pieces a1, a6 at both axial ends. A yoke structure 3 is attached to the outer periphery of the cylinder 2, and composed of ring-shaped Permalloy discs c1-c5 and a Permalloy cylinder D. The structures 3 and 1 are relatively axially movable, and the structure 1 is axially reciprocated through a shaft 5 by a voice coil motor 6. Thus, predetermined voltages are generated at the terminals of insulated wires 4 wound between the discs, added and output.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) This invention relates to a power generation device that converts linear (unidirectional and reciprocating) kinetic energy into electric power.

(Prior Art and Problems to be Solved by the Invention) Conventional power generation devices generate electricity by rotating a rotor using hydraulic power, an engine, or high-pressure steam as motive power. Conventional power generating devices all obtain electric power by driving a rotor, so the driving methods are limited.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a power generation device that can efficiently convert linear (unidirectional and reciprocating) kinetic energy into electric power and has a high degree of freedom in making the device larger or smaller.

[Structure of the invention] (Means for solving the problems) This invention consists of a plurality of soft magnetic pieces and a permanent magnet piece.
The soft magnetic pieces and the permanent magnet pieces are arranged alternately so that the soft magnetic pieces are located at both ends, and the magnetization directions of the adjacent magnet pieces are opposite to each other through the soft magnetic pieces. a magnetic pole piece structure arranged at equal intervals; and a magnetic pole piece structure facing the position of at least a part of the soft magnetic pieces of the magnetic pole piece structure, and forming a closed magnetic path together with the soft magnetic pieces in response to the magnetomotive force of the permanent magnet piece. It has a formable structure.

The magnetic pole piece structure includes a yoke piece structure movable relatively in the arrangement direction of the soft magnetic pieces, and a yoke piece structure arranged in each gap surrounded by each closed magnetic path formed by the yoke piece and the magnetic pole piece structure. and a winding member which is wound to generate a magnetomotive force in each closed magnetic path, and the winding directions of the adjacent gaps are opposite to each other.

(Function) With the above means, when there is a relative movement between the pole piece structure and the yoke structure, the magnetic flux crossing the windings undergoes a rapid reversal change, so each winding part has a large electromotive force. occurs and this is added. Therefore, this added output can be derived as generated power.

(Example) Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows an embodiment of the present invention, in which a pole piece structure 1 having a columnar outer shape is inserted coaxially into an epoxy cylinder 2. As shown in FIG. The magnetic pole piece structure 1 includes a disc-shaped soft magnetic piece al-a6,
Permanent magnet pieces bl-b5 are coaxially stacked alternately, and soft magnetic pieces ah a6 are located at both ends in the axial direction. Furthermore, the polarities of the permanent magnet pieces are arranged such that adjacent poles with a soft magnetic piece in between have opposite polarities.

Each of the soft magnetic pieces a1 to a6 has an outer diameter of approximately 13φ and a thickness of 0.
．． A layer of 35 gam permalloy plates having a thickness of approximately 5.0 cm was used. The permanent magnet pieces b1 to b5 are anisotropic ferrite magnets, and have an outer diameter of about 13-1 and a thickness of about 511I11.
It is.

Next, the yoke structure 3 is attached to the outer periphery of the epoxy cylinder 2 at approximately 15 mm. This yoke structure 3 includes ring-shaped permalloy disks c1 to c5 located on the outer periphery corresponding to a part of the soft magnetic piece al-a6, for example, al-a5, and disposed on the outer periphery of this permalloy disk cl-e5. It has a permalloy cylinder. Each permalloy disk cl-c5 is made by laminating permalloy plates having an inner diameter of about 15' and an outer diameter of about 30φ and a thickness of 0.35 mm to a thickness of about 5 ms. The permalloy cylinder has an axial length of 45 fl 1111 and a thickness of 0.1 a/m and is wound in 35 layers.

Here, gaps are created between each of the permalloy disks 01 to c5 of the yoke structure 3, and each gap has 1.2 insulated wires 4.
are sequentially wound 20 turns each in reverse winding direction.

The yoke structure 3 and the pole piece structure 1 are relatively movable in the axial direction. In this embodiment, the magnetic pole piece assembly 1 is reciprocated in the axial direction by a voice coil motor 6 via a shaft 5. In the above configuration, the pole piece structure 1 is iom
When driven at approximately 10 Hz in the range s(P-P), it produced a voltage of 14hv(p-9) at the terminals of winding 14.

The voltage waveform was similar to a sine wave.

By changing the winding wire and the number of turns, this power generation device can generate two
It is also possible to obtain a voltage of about 50 IIv to 5v.

Furthermore, by increasing the number of soft magnetic pieces or the length of the Yuke piece structure, the output can be simply added, so it can be designed to freely obtain the required voltage of power. Furthermore, the output voltage and power can also be increased by increasing the length of the pole piece structure 1 in the axial direction and moving it with a large stroke. Furthermore, if the moving distance on the movable side is long, the speed of reversal of the magnetic flux to the winding can be increased, which also makes it possible to increase the output power.

Furthermore, although the power generation device according to the above method is effective in downsizing, the power generation capacity can be increased by increasing the size. For example, if the outer diameter is 120Φ, the axial dimension is expanded to about 100 m/m, the magnetic field reversal frequency (average) is 15011z, and the number of coil windings is 160 turns, the no-load output voltage will be about 60V. This is several tens of percent more voltage than a conventional permanent magnet synchronous motor of approximately the same size. This comparison is simply an example of proportionally increasing the dimensions; however, increasing the size reduces the ratio of the actual dimensions of the magnetic path (the dimension between the pole piece structure and the yoke piece structure) to the entire magnetic path. As a result, even more efficient power generation capacity can be expected.

The power generation device of this embodiment can be easily applied to convert reciprocating motion into power, and can be put to practical use with simple peripheral equipment, for example, as a device for converting ocean wave motion into power.

FIG. 2 shows another embodiment of the invention. In this example, a yoke piece structure 3 and a magnetic pole piece structure 1 are separated by an epoxy cylinder 2.
The yoke piece structure 3 has a cylindrical appearance, and the pole piece structure 1 has a hollow cylindrical appearance. In this embodiment, for example, the yoke piece structure 3 is driven back and forth in the axial direction.

In this case, the terminals of the windings are led out, for example, via brushes attached to the shaft 5.

FIG. 3 shows yet another embodiment. In this embodiment, in the yoke piece structure 3, the winding 4 is arranged in the middle of the Bamaroy cylinder in the axial direction. In this way, it is also possible to make a plurality of permalloy disks correspond to one soft magnetic piece. In this embodiment as well, the same effects as in the previous embodiment can be obtained.

In the embodiment shown in FIG. 1, the yoke piece structure 3 is described as surrounding the entire circumference of the magnetic pole piece structure 1, but the yoke piece structure 3 may be divided and arranged.

Furthermore, although this device has been described as having a cylindrical appearance, it may also have a prismatic shape.

[Effects of the Invention] As explained above, according to the present invention, linear (unidirectional and reciprocating) kinetic energy can be efficiently converted into electric power, and power generation with a high degree of freedom in size and size can be achieved. You can get the equipment.

[Brief explanation of the drawing]

FIG. 1 is a structural explanatory diagram showing one embodiment of the present invention, and FIG. m2 and FIG. 3 are structural explanatory diagrams showing other embodiments of the present invention, respectively. 1... Magnetic pole piece structure, 2... Epoxy cylinder, 3...
- Yoke piece structure, 4... winding. Applicant's agent Patent attorney Takehiko Suzue F-'=L) zupu

Claims (1)

[Claims] Consisting of a plurality of soft magnetic pieces and permanent magnet pieces, the soft magnetic pieces and the permanent magnet pieces are arranged alternately so that the soft magnetic pieces are located at both ends, and a magnetic pole piece structure in which permanent magnet pieces are arranged at equal intervals so that the magnetization directions of the adjacent magnet pieces are opposite to each other; , has a structure capable of forming a closed magnetic path together with the soft magnetic pieces in response to the magnetomotive force of the permanent magnet pieces, and the magnetic pole piece structure is a yoke piece that is relatively movable in the arrangement direction of the soft magnetic pieces. a structure, and windings arranged in each gap surrounded by each closed magnetic path formed by the yoke piece and the above-mentioned magnetic pole piece structure, and wound to generate a magnetomotive force in each closed magnetic path, and in each adjacent gap. 1. A power generation device comprising winding members whose directions are opposite to each other.