JPH07174067A - Double rotor wind power generator - Google Patents

Abstract

PURPOSE:To increase the turning force by effectively utilizing the wind power even in case of weak wind, by arranging a plurality of rotor on a main shaft, arranging a plurality o magnets and induction coils on the opposed surface of both the rotors, and installing a plurality of blades on both the rotors. CONSTITUTION:A plurality of rotors 1A and 1B are arranged on a main shaft 6. Further, on the opposed surfaces of both the rotors 1A and 1B, a number of magnets 2 are arranged on one surface, and an induction coil 3 is arranged on the other. Further, on both the rotors 1A and 1B, a plurality of blades 11 are arranged. A double rotor type power generator thus constituted is equipped with a plurality of blades 11 so that both the rotors 1A and 1B are revolved in the opposite directions by a wind power, and the turning force can be increased by effectively utilizing the wind power. Accordingly, a stable output having a high frequency can be secured even in the low speed revolution by utilizing a number of magnets 2, induction coil 3, and a yoke 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention provides a technique for improving the efficiency of a wind power generator.

[0002]

2. Description of the Related Art As is well known, a wind power generator is one in which a rotor blade for converting wind power into a rotating force is provided in a rotor of a generator and the rotor is rotated to generate electric power. In addition, insufficient rotation of the generator rotor during light wind. In order to compensate for this, a device has also been proposed in which the rotation of the rotor blades is increased by a transmission to increase the speed of the generator rotor.

[0003]

According to the above-mentioned prior art, there is a large difference between the output characteristics during light wind and the output characteristics during strong wind.

That is, in a wind power generator, it is easy to obtain a high output in a strong wind, but there is a problem that a stable output cannot be generated in a light wind.

More specifically, the conventional wind power generator becomes a rotor blade having a large area in order to obtain a high output even when the wind is light, and measures must be taken to reduce the area or efficiency of the rotor blade when the wind is strong. The situation where the rotor blades are damaged occurs.

Therefore, an object of the present invention is to provide a wind power generator which can rotate a small-sized rotor blade or a low-efficiency rotor blade that can withstand strong winds and generate a stable output even during light wind. To provide.

[0007]

In order to solve the above object, the present invention has the following technical means.

That is, referring to the reference numerals in the accompanying drawings corresponding to the embodiments, the present invention provides a main shaft 6 with a rotor 1A and a rotor 1B, a large number of magnets 2 on one side, and an induction coil 3 on the other side. The rotor 1A and the rotor 1B are provided with a plurality of blades 11, which is a double rotor wind power generator.

[0009]

According to the above structure, the rotor 1A and the rotor 1B rotate in opposite directions by wind force,
By providing a plurality of blades 11, it is possible to effectively utilize wind power and to obtain a rotating force that is twice as large as that of a conventional generator including a rotor and a stator.

Furthermore, conventionally, when the rotation of the rotor blades is insufficient during light wind, the speed of rotation of the generator rotor is increased by the transmission,
Although efforts have been made to obtain high frequency output, in the present invention, by providing a large number of magnets 2 and yokes 4 on the circumference of rotor 1A and rotor 1B, respectively, stable high frequency is achieved even at low speed rotation. It is possible to obtain the output.

That is, according to the prior art, if a 10-pole generator is rotated to obtain an output of 60 Hz,
Rotation of 720 rpm is required, but according to the present invention, by providing a large number of magnets 2 and yokes 4 on the circumference of the rotor 1A and the rotor 1B respectively, stable output of the same frequency can be obtained at low speed rotation. Is possible.

That is, if 60 poles are provided on the circumference of the rotor 1A and the rotor 1B, the relative rotational speed of the rotor 1A and the rotor 1B is 120 rpm.

That is, the rotor 1A rotates counterclockwise to 60 rp.
m, the rotor 1B may rotate clockwise at 60 rpm.

[0014]

Embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

FIGS. 1 and 2 show a first embodiment and a second embodiment of the power generation section of the present invention.

That is, the rotor 1A and the rotor 1 are attached to the main shaft 6.
B, one side is provided with a large number of magnets 2 and the other side is provided with an induction coil 3, and the blades 1 are attached to the rotors 1A and 1B.
It is possible to generate a stable output of high frequency at low speed rotation by providing a plurality of 1 and rotating well even in light wind.

FIG. 3 shows the situation of the coil 3, the yoke 4, and the blade 11 of the second embodiment. It is possible to obtain a stable output of high frequency even at low speed rotation by a large number of poles. I am trying.

Next, FIGS. 4 and 5 show the present invention in a vertical type,
This is an example in which the blade 11 is installed horizontally, and the shape of the blade 11 is different.

As described above, it is a highly efficient wind power generator capable of reducing mechanical loss, rotating with light wind, and generating stable output even at low speed rotation.

[0020]

As described above in detail, according to the present invention, the main shaft 6 is provided with the rotor 1A and the rotor 1B, one side is provided with a large number of magnets 2, and the other side is provided with the induction coil 3, and the blades 11 are provided on the rotor 1A and the rotor 1B. It is possible to obtain a stable output at a high frequency at a low speed rotation without providing a gear shift device and without causing mechanical resistance.

[Brief description of drawings]

FIG. 1 is a sectional view of a first embodiment of a power generation unit of the present invention.

FIG. 2 is a sectional view of a second embodiment of the power generation section of the present invention.

FIG. 3 is a partially cutaway front view of the second embodiment.

FIG. 4 is a side view of a vertical axis type embodiment of the present invention.

FIG. 5 is a side view of a horizontal axis type embodiment of the present invention.

[Explanation of symbols]

 1A rotor 1B rotor 2 magnet 3 induction coil 4 yoke 5 bearing 6 spindle 7 brush 8 electrode 9A lock nut 9B lock nut 10A lock nut 10B lock nut 11 blade

Continuation of the front page (51) Int.Cl. ⁶ Identification number Office reference number FI technical display location H02K 7/18 Z

Claims (1)

[Claims] 1. A main shaft 6 is provided with a rotor 1A and a rotor 1B, one is provided with a large number of magnets 2 and the other is provided with an induction coil 3, and a blade 11 is provided on the rotor 1A and the rotor 1B.
Double-rotor wind power generator with multiple units.