JPH1089234A - Windmill for wind power generation - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a windmill for wind power generation to change a direction so that intake of wind is effected according to a wind direction. SOLUTION: A windmill for wind power generation comprises a fixed shaft 3 securely arranged; a casing 13 rotatably supported on the fixed shaft 3 and provided with an intake port 15 and a discharge port 17 for wind and extending in a vertical direction ; a wind resistance plate 19 attached to the casing 13 and extending on the extension line of the intake port 15; an impeller 5 arranged in the casing 13 and rotatably supported on the fixed shaft 3 and provided with a plurality of vanes 7; and a pulley 9 fixed at the impeller 5 and serving as a rotation force transmission member to transmit a rotation force to a generator.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a wind turbine used in a wind power generation system.

[0002]

2. Description of the Related Art In recent years, the continuous consumption of fossil fuels has increased the concentration of carbon dioxide in the earth's atmosphere, leading to a global warming phenomenon. This global warming phenomenon causes abnormal weather such as a drought and a typhoon in various parts of the earth, and as a result, many lives have been lost.

[0003] On the other hand, in the case of nuclear power generation that replaces fossil fuels, several accidents have been reported, including the problem of radioactive contamination in a wide area due to the fire at the Chernobyl nuclear power plant, and the safety of nuclear power generation is suspected. It is getting.

[0004] Under such circumstances, there is a movement to commercialize wind power generation. Wind power generation is expected as clean energy that is non-polluting and does not generate dangerous substances such as radioactivity. In addition, since the wind that exists naturally is used as the energy source, once the equipment is provided, there is an advantage that power generation can be performed semipermanently at almost no cost.

[0005] By the way, conventional wind turbines that have been used for wind power generation are arranged with the direction fixed to the direction of the wind that blows best on the land. Therefore, when wind is blowing from the direction in which the windmill is facing, power can be efficiently generated, but when the wind direction changes, the windmill cannot be turned. This makes it difficult to fully utilize the precious wind energy, and power generation efficiency is poor. Therefore, it has been desired to develop a structure that can effectively take in the wind and turn the windmill even when the wind direction changes.

[0006]

SUMMARY OF THE INVENTION The present invention has been made in view of such a background, and provides a wind turbine for wind power generation that can change its direction according to the direction of the wind so that it can take in the wind. The purpose is to do.

[0007]

According to a first aspect of the present invention, there is provided a fixed shaft fixedly disposed, a wind intake port and a wind intake port rotatably supported by the fixed shaft, and having a vertical direction. An extending casing, a wind resistance plate attached to the casing and extending on an extension of the wind intake port, and a vane disposed in the casing and rotatably supported by the fixed shaft and provided with a plurality of vanes. A wind turbine for wind power generation, comprising: a vehicle; and a torque transmitting member fixed to the impeller for transmitting torque to a generator.

According to a second aspect of the present invention, there is provided a wind turbine for wind power generation according to the first aspect, further comprising a wind collecting portion provided in the casing and taking in the wind into the casing while rectifying the wind.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A wind turbine 1 for wind power generation according to an embodiment of the present invention will be described with reference to the drawings. Reference numeral 3 denotes a fixed shaft, and the fixed shaft 3 is provided fixed to the ground. An impeller 5 is rotatably supported on the fixed shaft 3. In this impeller 5, four blades 7 are provided at intervals of 90 °, and the cross section of the blades 7 is formed in an arc shape. Further, a pulley 9 as a rotational force transmitting member is fixed to a lower end portion of the impeller 5. A belt 11 is stretched between the pulley 9 and a pulley provided in a generator (not shown).

Reference numeral 13 denotes a casing. The casing 13 is rotatably supported by the fixed shaft 3 and extends in a vertical direction. The casing 13 is provided with a wind collecting section 19, and the wind collecting section 19 has a wind intake port 15.
Are formed. Further, a wind discharge port 17 is formed in the casing 13 at a position facing the wind intake port 15. Reference numeral 23 denotes a wind resistance plate.
Reference numeral 3 is attached to the casing 13 via a pair of connecting arms 25 arranged vertically. Wind resistance plate 23
Extends straight on the central extension of the wind intake 15,
It stands vertically.

The wind turbine 1 for wind power generation of the present invention has the above-described structure and operates as follows. First, when the wind blows from a certain direction, the wind resistance plate 23 receives this wind and moves so that the wind resistance plate 23 is parallel to the wind. At this time, the casing 13 rotates, so that the intake port 15 faces the wind direction.

Then, as shown in FIG.
While being rectified, it is taken into the casing 13 and hits the blade 7 to be discharged from the discharge port 17.
The impeller 5 rotates by the wind force at this time, and a rotational force is generated. This torque is transmitted to the pulley of the generator via the pulley 9 and the belt 11, and drives the generator to generate power. In the casing 13, the side receiving the wind pressure of the blade 7 has a greater wind pressure than the outside, and conversely, has a negative pressure on the rotation direction side of the blade 7. Therefore, the impeller 5 is easily rotated, and the wind can be used more efficiently.

Although the embodiment of the present invention has been described in detail above, the specific configuration is not limited to this embodiment, and there are changes in the design without departing from the gist of the present invention. Are also included in the present invention. For example, in the above-described embodiment, a pulley is used as the torque transmitting member, and the torque is transmitted to the generator via the belt and the pulley. However, any gear, such as a gear, may be used as long as the torque can be transmitted. May be.

[0014]

As described above, in the present invention, since the wind resistance plate is provided, when the wind hits the wind resistance plate, the casing rotates so that the wind resistance plate becomes parallel to the wind. Will always face the wind. Therefore, since wind of any direction can be used for wind power generation, power can be continuously generated as long as the wind is blowing, and power generation efficiency is increased.

Further, since the wind collecting section is provided, the wind in a wide range can be collected at the intake while rectifying the wind, and the wind can be used more effectively.

Furthermore, since the structure is compact, the position of the wind turbine can be set lower than that of a conventional propeller type wind turbine. This makes it possible to use a wide range of winds and stably mount the windmill.

[Brief description of the drawings]

FIG. 1 is a perspective view of a wind turbine for wind power generation of the present invention.

FIG. 2 is a side sectional view of a wind turbine for wind power generation of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Windmill for wind power generation 3 Fixed shaft 5 Impeller 7 Blade 9 Pulley 13 Casing 15 Intake port 17 Discharge port 19 Wind collecting part 23 Wind resistance plate 25 Connecting arm

Claims (2)

[Claims] A fixed shaft disposed in a fixed manner, a casing which is rotatably supported by the fixed shaft, and has a wind intake port and a discharge port, and which extends in a vertical direction; A wind resistance plate extending on an extension of the intake port of the airbag, an impeller provided in the casing and rotatably supported on the fixed shaft and provided with a plurality of blades, and a generator fixed to the impeller. And a rotational force transmitting member for transmitting rotational force to the wind turbine. 2. The wind turbine for wind power generation according to claim 1, further comprising a wind collecting portion provided in the casing and taking in the wind into the casing while rectifying the wind.