KR101000628B1 - A wind power device - Google Patents

Abstract

PURPOSE: A wind power generator is provided to lower the failure ratio of a power generating part due to the sudden change of the rotating speed depending on the wind speed since the rotating speed of a blade is naturally adjusted depending on the wind speed. CONSTITUTION: A wind power generator comprises a shaft(10), a power generating unit(20), a first blade unit(30) and a second blade unit(40). The shaft is installed perpendicularly to the ground. The power generating unit generates the electricity through the torque of the shaft. The first blade unit is installed on the shaft and comprises blades to be rotated in a first direction by crosswind. The second blade unit is installed on the shaft or the first blade unit. The second blade unit comprises blades to be rotated in the first direction or in a second direction with respect to crosswind. The second blade rotates the first blade unit at a given speed without the wind speed. The first blade unit comprises a pair of discs, a plurality of fixed blades and a plurality of rotating blades.

Description

Wind Power Device {A Wind Power Device}

The present invention relates to a wind turbine, and more particularly, to a wind turbine capable of rotating the wind blades at a constant speed regardless of the wind speed.

In response to global warming due to carbon gas emissions, research and development on clean energy to replace fossil fuels has been steadily carried out in recent years.

 Wind turbines or wind turbines are driven by such a request. In addition, the generation of pollutants is significantly lower than that of conventional fossil-fueled generators. Be in the spotlight.

Such a wind generator or a wind power generator is largely divided into two types. One is a form in which the power generation shaft is horizontal with the ground (hereinafter referred to as a horizontal wind turbine), and the other is a form in which the power generation shaft is perpendicular to the ground (hereinafter referred to as a vertical wind generator).

The former has been used and developed for a long time in Europe, and the generation efficiency is higher than that of the vertical wind turbine, but it is greatly influenced by the wind direction, so it is difficult to miniaturize the installation site and to miniaturize it.

On the other hand, the latter is relatively low power generation efficiency compared to the vertical wind power generator, but because it is not affected by the large wind direction, it is relatively easy to miniaturize the installation place. Therefore, such a vertical wind power generator can greatly contribute to reducing the emission of carbon gas and widening the use of clean energy through the installation of small complexes such as small factories or houses.

On the other hand, the vertical wind power generator has a disadvantage in that the speed of the rotary blade is greatly changed according to the wind speed and thus the magnitude of power and current generated by the generator is not constant.

However, such a brake device is not only expensive but also makes it very difficult to troubleshoot the wind power generator. Therefore, a development of a vertical wind power generator capable of replacing this or keeping electric power constant regardless of the wind speed is required.

The present invention was developed by the request as described above, the object of the present invention is to provide a wind power generator that does not require a separate brake device by naturally adjusting the rotational speed of the blade to operate the generator according to the wind speed.

According to an embodiment of the present invention for achieving the above object, a shaft installed perpendicular to the ground; A power generation unit generating electricity through rotational force of the shaft; A first wing part installed on the shaft and having first wings disposed to rotate in a first direction by a head wind; And installed in the shaft or the first wing part to rotate the first wing part at a constant speed irrespective of the wind speed, so as to rotate in the second direction opposite to the first direction or opposite to the first direction with respect to the upwind. It is provided with a wind power generator comprising; a second wing portion is disposed second wings as possible.

Preferably, the first wing portion is a pair of disc; A plurality of fixed blades fixedly disposed at the center of the disk between the pair of disks; And a plurality of rotary vanes disposed between the pair of discs and disposed at an edge of the disc and rotatably installed about a first fixed axis.

In addition, the second wings are installed so that the pitch angle can be changed around each second fixed axis, the wind turbine is a sensor for measuring the wind speed and the second proportional to the magnitude of the wind speed measured by the sensor It is preferable to further include adjusting means for adjusting the pitch angle of the wings.

In addition, the adjusting means may include first planetary gears respectively installed on the second fixed shaft; A sun gear engaged with the first planetary gears or through one or more second planetary gears respectively engaged with the first planetary gears; And it is preferable to include a motor for rotating the sun gear in proportion to the magnitude of the wind speed measured by the sensor.

Wind power generator according to the present invention is because the rotational speed of the rotating blades is naturally adjusted according to the size of the wind speed, does not require an expensive brake device, and also the failure rate of the power generation unit by a sudden change in the rotational speed of the blades according to the wind speed Can be significantly lowered.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. For reference, in the following description of the present invention, terms referring to the components of the present invention are named in consideration of the function of each component, and should not be understood as a meaning of limiting the technical components of the present invention. Will be.

1 is a conceptual diagram of a wind power generator according to a first embodiment of the present invention, Figures 2 and 3 are plan views showing the blade arrangement of the first wing and the second wing of the wind power generator shown in FIG. 4 is a conceptual diagram of a wind power generator according to a second embodiment of the present invention, FIG. 5 is a partially separated perspective view showing a main configuration of the first wing unit shown in FIG. 4, and FIG. 1 is a plan view showing the operating state of the wing portion, Figure 7 is a concept of a wind power generator according to a third embodiment of the present invention, Figure 8 schematically shows the main configuration of the second wing portion and the adjustment means shown in FIG. It is the top view shown.

(Embodiment 1)

As shown in FIG. 1, the wind power generator 100 according to the first embodiment of the present invention includes the shaft 10, the power generation unit 20, the first wing unit 30, and the second wing unit 40. Include.

The shaft 10 is installed perpendicular to the ground and is provided in the power generation unit 20. The shaft 10 may be a rotating shaft of the generator constituting the power generation unit 20 or connected to the rotating shaft.

The power generation unit 20 is a means for converting the magnetic force generated by the rotation on the shaft 10 into a current, and takes the structure and form used in a general generator. Therefore, the detailed structure thereof will not be described in the present invention.

The first wing portion 30 is firmly installed on the shaft 10, and serves to rotate the shaft 10 in the first direction, for this purpose, the first wing portion 30 is shown in FIG. And a plurality of (fixed) wings 34. That is, the first wing portion 30 rotates the shaft 10 by a plurality of wings 34 hit the wind when the wind blows, the power generation unit 20 produces a current by the rotational movement of the shaft 10 Make progress. For reference, the first wing 30 may be a structure of the known Danus type.

The second blade portion 40 is fixed to the shaft 10 or the first blade portion 30 to serve as a role for rotating the shaft 10 in a second direction (direction opposite to the first direction). That is, as shown in FIG. 3, the second wing part 40 includes a plurality of wings 44 arranged in the opposite direction to the wings 34 of the first wing part 30. Therefore, the second wing portion 40 acts on the shaft 10 to rotate in the opposite direction to the first wing portion 30 when the wind blows.

In the wind power generator 100 according to the first embodiment made as described above, rotation directions of the first wing part 30 and the second wing part 40 due to wind are basically different. In particular, such a force deviation is even more pronounced when the wind is strong, so that the first wing portion 30 is rotated at a relatively constant speed when the wind speed is sharply changed.

Therefore, according to the present embodiment, it is possible to effectively prevent the current generating part of the power generation unit 20 from burning or failing due to the high speed rotation of the first wing part 30 due to the rapid increase in the wind speed.

(Second Embodiment)

The present embodiment is different from the first embodiment in the configuration of the first wing part 30. For reference, the same components as those of the first embodiment use the same reference numerals as the first embodiment, and a detailed description thereof will be omitted.

In the wind power generator 100 according to the second embodiment, the first wing 30 has a pair of discs 32, a plurality of fixed blades 34, and a plurality of rotors as shown in FIGS. 4 and 5. A typical wing 36. Reference numeral 39 is a detent for limiting the rotation of the rotatable wing 36.

The pair of discs 32 is a member for supporting the wings 34 and 36 of the first wing part 30 and is installed on the shaft 10 in a form arranged at regular intervals up and down. For reference, in the present embodiment, the disk 32 is shown as a member supporting the plurality of wings 34 and 36, but in some cases, it may be changed to a shape in which a plurality of flesh is coupled to a circular frame such as a wheel. .

The fixed wing 34 is disposed in the center portion of the disc 32 at regular intervals, and the excavation to help the first wing portion 30 to rotate smoothly according to the size of the wind blowing into the first wing portion 30. Do it. Preferably, the area of the stationary vanes 34 that can be energized by the wind is smaller than the area of the rotatable vanes 36. In addition, the fixed wings 34 may be omitted if necessary.

The rotary blade 36 is rotatably installed at the edge of the disc 32 via the first fixed shaft 38. Each area of the rotatable vane 36 is larger than the stationary vane 34, as mentioned above, and provides the main force for the first wing 30 to rotate by wind. On the other hand, the rotatable wing 36 is rotated in a different form at each position in the disc 32, as shown in Figure 6 during the rotational movement of the first wing 30 is hit by the wind, the force by the wind To the shaft 10.

In the wind power generator 100 according to the present embodiment made as described above, the rotatable blades 36 leading to the main rotational force of the first wing part 30 rotate based on the first fixed shaft 38 and wind and Since it hits, unlike the wings 34 of the first wing portion 30 of the first embodiment does not transmit the force by the wind to the first wing portion 30 or the shaft (10).

Therefore, according to the present embodiment, not only the second wing part 40 but also the first wing part 30 serve as a brake for the wind speed, and thus, the first wing part (for the wind speed exceeding the reference value of the wind power generator 100). 30) has the effect of maintaining a more constant rotation speed.

(Third Embodiment)

This embodiment is different from the first embodiment and the second embodiment in the configuration of the second wing portion 40. For reference, the same components as those of the first embodiment use the same reference numerals as the first embodiment, and a detailed description thereof will be omitted.

In the wind power generator 100 according to the third embodiment, the second wing portion 40 prevents the first wing portion 30 from rotating by the greater force with respect to the first direction rotation of the first wing portion 30. It is configured to.

That is, the wind power generator 100 of the present embodiment further includes a sensor 50 for detecting the wind speed, so that the pitch of the wings 44 may be varied according to the wind speed by the second wing 40. A second fixed shaft 42, a plurality of second wings 44 rotatably installed on the second fixed shaft 42, and adjustment means 60 capable of adjusting the pitch of the second wings 44. .

The wind speed sensor 50 is installed on the upper end of the shaft 20 or the second wing portion 40, and transmits the current wind speed to the adjustment means 60 from time to time (see Fig. 7).

In the second wing portion 40, the second fixing shaft 42 is rotatably installed on a pair of discs (not shown) or other fixing frame (for example, the upper surface of the first wing portion 30). , The second wings 44 are installed to rotate together with the second fixed shaft 42. Here, the second wings 44 have a cross section like a wing of an airplane so as to generate a drag against a head wind blowing toward the second wings 44 (see FIG. 8).

The adjusting means 60 includes a plurality of planetary gears 62 and 64, a sun gear 66 and a motor 68 as shown in FIG. The first planetary gear 62 may be installed to rotate together with the second fixed shaft 42. The second planetary gear 64 may rotate when the sun gear 66 and the first planetary gear 62 mesh with each other. The medium serves as a medium (can be omitted if necessary), and the sun gear 66 serves to transmit the driving force of the motor 68 to the first planetary gear 62. The motor 68 adjusts the pitch of the second blades 44 based on the value measured by the wind speed sensor 50 (for example, if the wind speed is high, the drag caused by the second blades 44 becomes large. Rotate the second blades 44 so that the wind speed is low, so that the second blades 44 are rotated so that the drag caused by the second blades 44 becomes small or does not occur.

In the wind power generator 100 configured as described above, when the wind speed detected by the sensor 50 is smaller than the set wind speed, the first wing part 30 and the second wing part 40 rotate in the same direction, and the power generation unit ( 20), but if the wind speed detected through the predecessor 50 is greater than the set wind speed, the adjusting means 60 so that the drag force by the wings 44 of the second wing portion 40 is increased in proportion to the wind speed. Driven.

Therefore, according to the present exemplary embodiment, the rotation speed of the first wing unit 30 by the second wing unit 40 may be more directly adjusted according to the wind speed.

For reference, in the above description, the third embodiment is described as modified in the form of the first embodiment, but may be modified in the form of the second embodiment as necessary.

The present invention is not limited only to the embodiments described above, and those of ordinary skill in the art to which the present invention pertains can be made without departing from the spirit of the technical idea of the present invention described in the claims below. Various changes can be made.

1 is a conceptual diagram of a wind power generator according to a first embodiment of the present invention,

2 and 3 are plan views showing the blade arrangement of the first wing and the second wing of the wind power generator shown in FIG. 1, respectively;

4 is a conceptual diagram of a wind power generator according to a second embodiment of the present invention;

5 is a partially separated perspective view showing the main configuration of the first wing portion shown in FIG.

6 is a plan view showing an operating state of the first wing portion shown in FIG.

7 is a conceptual diagram of a wind power generator according to a third embodiment of the present invention,

FIG. 8 is a plan view schematically showing a main configuration of the second wing portion and the adjustment means shown in FIG. 7.

Description of the Related Art

100: wind power generator 10: shaft

20: power generation unit 30: first wing

32: negative 34: (fixed) first wing

36: (rotary type) 1st wing 38: 1st fixed shaft

40: 2nd wing part 42: Fixed shaft

44: second wing 50: sensor

60: (second wing pitch) adjusting means

62: first planetary gear 64: second planetary gear

66: sun gear 68: motor

Claims (4)

delete An axis installed perpendicular to the ground; A power generation unit generating electricity through rotational force of the shaft; A first wing part installed on the shaft and having first wings disposed to rotate in a first direction by a head wind; And Installed in the shaft or the first wing portion, so as to rotate the first wing portion at a constant speed irrespective of wind speed, so as to rotate in the second direction against the first wind or opposite to the first direction. A second wing portion in which second wings are disposed; The first wing portion, a pair of disc; A plurality of fixing vanes fixedly disposed in the center of the disk between the pair of disks; And a plurality of rotary vanes disposed between edges of the pair of discs and rotatably installed about a first fixed shaft. The method according to claim 2, The second wings are installed so that the pitch angle can be changed around each second fixed axis, The wind turbine generator further comprises a sensor for measuring wind speed and adjusting means for adjusting the pitch angle of the second wings in proportion to the magnitude of the wind speed measured by the sensor. The method according to claim 3, The adjusting means includes first planetary gears respectively installed on the second fixed shaft; A sun gear meshed directly with the first planetary gears or through one or more second planetary gears respectively engaged with the first planetary gears; And And a motor for rotating the sun gear in proportion to the magnitude of the wind speed measured by the sensor.

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