JP2013007362A - Compact wind power generation apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a portable compact wind power generation apparatus capable of storing electric power and having high safety during an operation, without requiring a weathervane mechanism for coping with change in wind direction.SOLUTION: In this compact wind power generation apparatus, a wind power generation unit including a casing housing a wind turbine, the wind turbine receiving wind in the casing and capable of freely rotating, a wind collecting plate guiding the wind to the wind turbine, and a power generation means converting the rotation of the wind turbine into the electric power is rotatably coupled to another wind power generation unit via a hinge, and regularly oriented in the wind direction so as to be developed and installed in a substantially W shape. Accordingly, even when the wind direction changes, the wind can be guided to the wind turbine by the wind guide action of the wind collection plate and the casing so that the power generation is allowed.

Description

The present invention relates to a small wind power generator that can cope with a change in wind direction without requiring a wind vane mechanism, is portable, can store electric power, and has high safety during operation.

2. Description of the Related Art Conventionally, as a wind power generator for converting wind power into electric power to obtain electric power, there is a fixed stationary installation type with large windmill wings.

Utility model registration No. 3054811. As an example of this wind power generator, there is a wind turbine having wings and a hub, and a support that supports and fixes these to the ground. The output shaft of the gearbox is attached to the rotor of the generator. The generator coil is fixed to the main body of the gearbox. The windmill rotates by receiving wind on the blades, and this rotation is transmitted to the gearbox through the power shaft. In the gearbox, the rotation of the power shaft is further increased to rotate the rotor of the generator. As the rotor rotates, power is induced in the coil of the generator to generate electricity.

However, in the wind turbine generator, the wind vane mechanism for constantly facing the wind following the change in the wind direction is complicated and prone to failure, the durability of the bearing is low due to wear of the bearing due to the gyro effect, and the windmill changes direction However, power generation efficiency decreases.

In addition, because the windmill is large and fixed on the ground, it is effective when large amounts of power are required, but it can be carried around during evacuation in the event of an earthquake, using a mobile phone, or turning on a small light. It is difficult to use.

Further, since the wind turbine blades are exposed, it is dangerous if a person contacts the wind turbine rotating at high speed.

The present invention has been made in view of such circumstances, and can cope with a change in the direction of the wind without requiring a wind vane mechanism, has durability, is easy to carry, and is safe during rotation of the windmill. It is an object of the present invention to provide a small wind power generator that has high performance, can store electric power, and can output an arbitrary voltage.

The small wind turbine generator according to claim 1 includes a housing for housing the windmill, a windmill that can freely rotate by receiving wind in the housing, a wind collecting plate that guides wind to the windmill, and rotation of the windmill. A wind power generation unit including power generation means for converting into electric power is rotatably coupled to other wind power generation units via hinges, and a hinge deployment angle between the wind power generation units and between the wind power generation unit and the wind collecting plate is approximately 90. By deploying and installing in a substantially W shape so as to face the wind direction, even if the wind direction changes, power is generated by guiding the wind to the windmill by the wind guide action formed by the wind collecting plate and the housing Is possible.

The small wind power generator according to claim 2 is provided with a secondary battery in the wind power generation unit in order to store electric power.

The small wind turbine generator according to claim 3 is characterized in that a plurality of wind turbine generator units can be connected vertically via hinges.

The small wind power generator according to claim 4 is characterized in that a transforming means for stepping up or stepping down electric power is provided in the wind power generation unit.

According to the first aspect of the present invention, since the wind power generation unit is rotatably connected to another wind power generation unit by the hinge, even if the wind direction changes during deployment, the wind collecting plate and the housing By directing the wind to the windmill by the wind guide effect, the generated power can be increased without a wind vane mechanism. Moreover, it has the housing | casing which accommodates a windmill. For this reason, the windmill is housed in the housing, and the windmill can be easily transported without interfering with transportation, and the human body is less likely to contact the windmill, and safety during rotation can be improved.

According to the invention described in claim 2, since the secondary battery is provided in the wind power generation unit, it can be used when it is desired to use the electric power generated and stored in advance.

According to the third aspect of the present invention, the generated power can be increased by connecting the wind power generation units up and down.

According to the invention described in claim 4, it is possible to obtain electric power of an arbitrary voltage, and it is possible to drive various electric devices without being limited to the power supply voltage.

(A) is the front view of the small wind power generator concerning Embodiment 1 and Embodiment 2 of this invention, (b) is the side view, (c) is the perspective view. It is a DD sectional view schematic sectional drawing of FIG. It is the same electrical wiring diagram. It is an AA arrow schematic sectional drawing of FIG. It is the same electric circuit diagram. (A) is a perspective view at the time of accommodation of the small wind power generator concerning the present invention, (b) is a perspective view showing one example, and (c) is a top view of one example.

Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings.

(Embodiment 1) FIG. 1A is a front view of a small wind power generator according to the present invention, FIG. 1B is a side view thereof, and FIG. 1C is a perspective view thereof. 2 is a schematic sectional view taken along line DD in FIG. 1, FIG. 3 is an electrical wiring diagram, FIG. 4 is a schematic sectional view taken along line AA in FIG. 1, and FIG. 6A, 6B and 6C are perspective views showing an embodiment of a small wind power generator according to the present invention.

1 to 6, a small wind power generator 1 is a power generator that can respond to a change in wind direction, can be transported and moved by human power, and generates power by converting wind power into electric power. The wind power generation unit 5 is a unit for performing wind power generation formed by a rectangular parallelepiped casing 10 having a length and width of about 400 mm and a thickness of about 60 mm. The weight of the wind power generation unit 5 is about 1200 g. The wind power generation unit 5 includes a cylindrical body 10a that opens from the front to the back and penetrates. The cylindrical body 10a is a diffusion cylinder that slightly spreads in the wake direction of the wind, and the cylindrical body 10a is formed as a wind passage.

As shown in FIG. 6B, a hinge 12 is provided on the connection side surface of the housing 10. The hinge 12 is for mechanically connecting a plurality of wind power generation units 5 so as to be freely rotatable, and is deployed and installed approximately 90 degrees.

Although the hinge 12 is attached to the side surface of the wind power generation unit 5 in the present embodiment, it goes without saying that the hinge 12 can be added to the upper and lower surfaces.

Six support arms 11 extend from the housing 10 toward the center of the cylinder 10a and are connected at the center of the cylinder 10a. A windmill 20 is rotatably supported at the center of the support arm 11 and is rotated by the wind passing through the cylindrical body 10a. An electric wire extending from a generator 25 to be described later is guided along the support arm 11 to a space in the housing 10.

As shown in FIG. 6B, a hinge 13 is provided on the side surface of the housing 10 opposite to the hinge 12. The hinge 13 is for mechanically connecting the wind power generation unit 5 and the air collecting plate 14 so as to be rotatable mechanically, and is installed by being expanded approximately 90 degrees.

The windmill 20 includes five blades 29 formed around a bowl-shaped spinner 28 and is configured to be fastened to a shaft tip of a generator 25 fixed to the support arm 11.

The amount of power generated by the windmill 20 receiving wind power and rotating the generator 25 is about 7V in voltage and about 100 mA in current. Note that the size, number, and amount of power generation of the casing 10 and the blades 29 shown in this embodiment are merely examples, and the portable size as shown in this embodiment is natural. It goes without saying that various modifications can be made without departing from the scope of the inventions of the present invention as long as they are within the movable range.

As shown in FIGS. 2, 3, and 5, a substrate 18 and a secondary battery 17 are housed inside the wind power generation unit 5. On the substrate 18, diodes D1 to D6 and a capacitor C1 for rectifying the generated electricity are mounted. The secondary battery 17 is for storing generated electric power. In addition, although the secondary battery 17 is provided in this Embodiment, it does not necessarily need to be provided. Further, the output connector 16 provided on the side surface of the wind power generation unit 5 is a connector for outputting electric power. In this embodiment, a USB connector is used, but the electric power of the wind power generation unit 5 is output. Any connector can be used as long as it has sufficient electrical durability.

(Usage method) Next, the usage method of the small wind power generator 1 in this Embodiment is demonstrated. As one method of use, as shown in FIG. 6 (a), the wind power generator 1 in a housed state is carried and carried to an evacuation facility at the time of an earthquake, for example. ), The wind power generation unit 5 is opened around the hinge 12, and the wind collecting plate 14 is opened around the hinge 13 and deployed in a substantially W shape. Then, a mobile phone or a wireless device is connected via the output connector 16, and these electric devices are operated with the power generated by the wind power generation unit 5.

As shown in FIG. 6C, by installing the wind power generator 1 so as to face the main wind direction 30C, even if the wind direction changes within a range of about ± 45 degrees from the wind direction 30L to the wind direction 30R. The decrease in power generation amount is less than 15%, and it is not necessary to change the direction of the wind power generator 1 every time the wind direction changes.

According to the small wind power generator 1 shown in the present embodiment, since the windmill 20 is housed in the cylindrical body 10a of the housing 10, the windmill 20 can be easily transported without obstructing transportation, It is difficult for the human body to come into contact with the windmill 20, and safety during rotation can be improved.

In addition, since it can be easily folded, it can be easily transported if it is folded into a handbag as shown in FIG.

Moreover, since the secondary battery 17 is provided in the wind power generation unit 5, it can be used when it is desired to use the power generated and stored in advance. In addition, by providing the substrate 18 with the transforming means, it is possible to obtain electric power of an arbitrary voltage, and it is possible to drive various electric devices without being limited to the power supply voltage.

(Embodiment 2) The small wind power generator of the present embodiment can increase the amount of power generation by taking in a wide range of winds by connecting the wind power generation units 5 in the vertical direction.

Further, the wind power generation unit 5 in the above two embodiments is not added with a mechanism for improving power generation efficiency such as a speed increasing mechanism, but the speed increasing mechanism is within a range not departing from the gist of each invention according to the present invention. It goes without saying that various kinds of information can be added.

The secondary battery 17 for storing the generated electricity used in the first and second embodiments is a storage battery such as a nickel cadmium secondary battery, a nickel hydride secondary battery, or a lithium ion secondary battery. In addition, what is necessary is just to be able to charge and discharge electricity such as a capacitor such as an electric double layer capacitor.

DESCRIPTION OF SYMBOLS 1 ... Small wind power generator 5 ... Wind power generation unit 10 ... Casing 10a ... Tube 11 ... ··· Windmill support arm 12 ··· Winding power generation unit hinge 13 ··· Wind collector hinge 17 · · · Secondary battery 18 · · · Board 20 ... windmill 25 ... generator

Claims (4)

In a small wind turbine generator that does not require a wind vane mechanism and can be transported and moved by human power. A wind turbine unit including a rotatable wind turbine, a wind collecting plate for guiding wind to the wind turbine, and a power generation unit that converts the rotation of the wind turbine into electric power is rotatably coupled to another wind turbine unit via a hinge, A small wind power generator, which is deployed and installed in a substantially W shape so as to face the wind direction so that the hinge deployment angle between the wind power generation units and between the wind power generation unit and the wind collecting plate is approximately 90 degrees. The small wind power generator according to claim 1, wherein a secondary battery is provided in the wind power generator unit. The small wind power generator according to claim 1 or 2, wherein a plurality of wind power generation units can be connected even in a vertical position via a hinge. 4. The small wind power generator according to claim 1, further comprising a transformer for increasing or decreasing the voltage in the wind power generation unit.