KR20240122489A - Wind induction device for obtaining wind power and wind power generation device using the same - Google Patents

Abstract

The present invention aims to provide a wind power generation device and a wind induction mechanism for obtaining wind power, which can eliminate wasted wind to maximize the efficiency of wind power utilization, increase the wind power applied to the blades to enable power generation even under low wind pressure, and immediately follow and align with changes in the wind direction to greatly increase the power generation efficiency. To this end, a wind induction mechanism for obtaining wind power and a wind power generation device using the same are provided, which include a conical diffuser body, and a wind induction and concentration section in which a plurality of triangular pyramids protrude in a wrinkled shape on the outer periphery of the exit end side of the diffuser body, and a valley section for inducing and concentrating wind is formed between the protruding triangular pyramids, and the valley section is formed so that the width is wide at the upstream where the wind enters and gradually narrows at the downstream where the wind is discharged.

Description

Wind induction device for obtaining wind power and wind power generation device using the same

The present invention relates to a wind induction device for obtaining wind power and a wind power generation device using the same, and more specifically, to a wind power generation device installed on land or at sea or installed on a means of transportation such as a bridge railing, a building roof, or a ship, and which produces electricity while being rotated by wind power.

Wind power generators that generate electric energy using wind power are being studied extensively as an alternative energy source due to the depletion of natural resources such as oil, coal, and natural gas caused by industrial development and population growth. In particular, wind power generation is receiving attention as an energy source that can replace oil resources because it does not emit any pollutants such as _CO2 , a major cause of global warming, during the power generation process and there is no concern about damaging the environment.

A wind power generator for wind power generation has a generator that produces electricity from the rotation of blades, and a power converter that converts the electricity produced by the generator into electricity to be supplied to the grid. Therefore, wind energy is converted into mechanical energy such as rotational energy using blades, and the converted mechanical energy is used to drive the generator to produce electricity, and the generated electricity is converted into electricity to be supplied to the grid by the power converter.

As wind power generation devices account for a larger portion of power generation, larger power generation capacities are required, and as installation areas move to the sea where wind energy is continuously supplied and environmental restrictions are less severe, the size of blades, which play a large role in power generation capacity, is also increasing. As such, blades can be said to be one of the most important parts of wind power generators, and blade performance not only greatly affects power generation capacity, but also accounts for a large portion of the overall system cost.

Wind turbines are largely divided into vertical and horizontal types according to the installation direction of the ground and the rotation axis. Horizontal wind turbines have the advantages of being easy to install and having less power loss, but they are greatly affected by the wind direction, and their internal configuration is complicated due to the yaw system and blade size, and their installation scale increases. On the other hand, vertical wind turbines have lower power efficiency, but they can be installed regardless of the wind direction, take up a small installation area, and can be installed in multiple stages.

An example of a typical wind power generation device is illustrated in FIGS. 1 and 2 (Patent Publication No. 10-2011-0136296).

Referring to FIGS. 1 and 2, a typical wind power generation device (200) is provided with a plurality of blades (155), a hub (160) to which the plurality of blades (155) are connected, a generator body (210) to which the hub (160) is rotatably connected, and a support member (220) that supports the generator body (210) against a floor surface.

A plurality of blades (155) are arranged around a hub (160), and a pressure surface (153) and a suction surface (154) are formed so that a lifting force that can rotate the blade body (150) can be generated by the applied wind force. When the wind force is applied to the blade body (150), it rotates in one direction, thereby allowing electricity to be generated in the generator body (210).

However, such a traditional type of wind power generator requires a large blade (155) to increase the surface area receiving wind pressure in order to obtain a large power, and especially, since the rotational moment is small near the center hub (160), the blade length becomes excessively large in order to place the surface area receiving the wind at a long radial distance, and due to the limit of the allowable load on the support structure of the bearing, it is difficult to increase the number of blades receiving the wind, so usually 3 to 4 (most are 3) are installed.

However, due to the limitation on the number of blades installed, the wind pressure passing through the wide space between the blades does not contribute to power generation at all, and while the direction of the wind in nature is not constant and changes frequently, the large blade structure of a wind power generator has a significantly slow orientation response speed to align itself in the direction of the wind, which reduces the efficient use of wind pressure and lowers power productivity.

Meanwhile, the wind pressure equally affects the center and blade tips, which have a low contribution to power generation, and it only applies a force to the blades that is lower than the natural wind speed. Therefore, when the wind speed decreases, there is not enough power to rotate the blades, so the generator has no choice but to stop operating, making it difficult to produce stable electricity.

As the wind blowing in nature is not always constant, it is difficult for existing wind power generators to efficiently respond to changes in wind direction or strength. Therefore, there is a need for highly efficient wind power generators that can freely change to a position that receives maximum wind power depending on the wind direction, while also being able to flexibly respond to wind strengths of both small and large, and stably produce electricity even under low wind pressure and wind speed.

Publication of Patent Publication No. 10-2011-0136296

The present invention has been proposed to solve the problems of the above-mentioned prior art, and the purpose of the present invention is to provide a wind power generation device and a wind induction mechanism for obtaining wind power which can maximize the efficiency of wind power utilization by eliminating wasted wind, increase the wind power applied to the blades so that power generation is possible even under low wind pressure, and greatly increase the power generation efficiency by immediately following and aligning with changes in wind direction.

Another object of the present invention is to provide a wind power generation device that can be freely designed in device size including small and large, has a beautiful appearance, is easy to install, and can be used for lighting and decoration of bridges, buildings, streetlights, etc. without separate power input.

In order to solve the above-mentioned problem, the wind induction (concentration) mechanism for obtaining wind power of the present invention is a mechanism that induces and concentrates wind on a rotating member (blade mechanism) of a wind power generator, and includes a conical diffuser body whose diameter gradually increases from an entry end where the wind enters toward an exit end where wind is supplied to the blades, and forms a space on the inside, and a wind induction and concentration part in which a plurality of triangular pyramids are arranged continuously on the outer periphery of the exit end side of the diffuser body and protrude in a wrinkled shape, and a valley part for inducing and concentrating the wind is formed between the protruding triangular pyramids, and the valley part is characterized in that it is formed so as to be wide on the upstream side where the wind enters and gradually narrower on the downstream side where the wind is discharged.

According to the present invention, the conical diffuser body is characterized in that the upstream end through which the wind enters is a truncated cone having a pointed end or a circular cross-section.

According to the present invention, the triangular pyramids forming the wrinkles are characterized in that they are formed by welding a plate material bent into a V shape to form a predetermined angle centered on an upper edge line to form inclined side walls on both sides to the outer periphery of the conical diffuser body, or the triangular pyramids forming the wrinkles are formed by casting as a single piece with the conical diffuser body, or by injection molding as a single piece, or by press-working as a single piece.

A wind power generator according to the present invention comprises: a wind induction and concentration mechanism for obtaining wind power; a rotating member installed to rotate by wind induced and discharged through the valley section downstream of a conical diffuser body through which wind of the wind induction and concentration mechanism is discharged; a rotating shaft installed within the conical diffuser body to rotatably support the rotating member; and a generator that produces and outputs electricity by rotation of the rotating shaft.

According to the present invention, the rotating member is characterized in that it has a plurality of blades having an inclination that converts axial wind pressure sprayed through the valley portion on the outer periphery of a cylindrical or truncated cone body into a rotational component in a direction perpendicular to the axis to rotate.

According to the present invention, the blade is characterized in that it is formed to have a 45° inclination angle on the upstream side where the wind enters, but has a greater inclination angle toward the downstream side.

According to the present invention, the blade is characterized in that a portion of the lower portion on the upstream side is fixed to the outer surface of the cone and the remaining portion is separated from the cone, and the blade is formed of an elastic body so that when the wind pressure or wind speed exceeds a set value, it is deformed backward by the wind pressure to bypass a portion of the wind pressure, thereby preventing excessive rotation of the rotating member.

According to the present invention, the generator is characterized in that it is installed so as to be directly connected to the rotational shaft or is installed on a vertical rotational shaft that receives rotational power from the rotational shaft through a direction changing mechanism.

According to the present invention, the conical diffuser body is supported by a support column member, and is supported so as to be rotatable 360° on a horizontal plane with respect to the support column member through a horizontal bearing.

According to the present invention, a wind receiving alignment member having a semicircular cross-section is installed symmetrically on both sides on the outside of the support pillar member so as to be in a direction parallel to the central axis of the rotation axis, and the central axis of the rotation axis is always aligned to the direction of the wind by the wind receiving alignment member.

According to the present invention, a portion of the upstream side of the conical diffuser body is formed as a transparent or translucent light-transmitting body, and an LED light-emitting body is installed within the light-transmitting body to emit light using electricity produced by the generator as a power source.

According to the present invention, it is characterized by having a capacitor that stores electricity produced from the generator.

According to the present invention, the conical diffuser body of the wind induction (concentration) mechanism drives the wind entering from the upstream side to the outside of the downstream side of the conical body and concentrates it in a ring shape, and furthermore, the wind is induced to be concentrated between the triangular pyramids forming the wrinkles, so that the air passing through the valley between the inclined wall surfaces on both sides gradually rushes into the narrow space, and the wind pressure increases, and as it is sprayed at high speed through the narrow exit, it collides with the blades of the rotating member, so that the power generation efficiency is greatly increased due to the high-pressure, high-speed wind speed action that is greatly enhanced and wasteless compared to conventional wind power generation devices, so that even under low wind speeds that are not suitable for power generation, it is possible to obtain economical power generation efficiency even with a small-scale device, so that it can be installed anywhere, not just on a coast or a mountaintop, and the freedom of installation is expected to greatly increase due to the beautiful appearance.

In addition, the conical diffuser body is formed with the upstream side being sharp and the diameter gradually increasing, so that whenever the wind direction changes, it quickly follows it and aligns itself with the wind direction, thereby maintaining the highest utilization efficiency regardless of the wind direction that changes frequently.

In addition, if the upstream side of the conical diffuser body is formed as a transparent or translucent body and a light-emitting means is placed inside the body and the light-emitting means is made to emit light using the electricity obtained by driving the generator, when used as a decorative means for a bridge (or building or streetlight), decorative lighting is possible without a separate electricity supply, and as the conical diffuser body rotates on the horizontal plane in accordance with the wind direction, the light sways back and forth and is emitted in all directions, so a more beautiful decorative effect can be obtained.

Figures 1 and 2 are drawings showing a conventional wind power generation device.
Figure 3 is a perspective view showing the appearance of a wind power generator according to the present invention.
Figure 4 is a front view showing the appearance of a wind power generator according to the present invention.
Figure 5 is a left side view showing the exterior of a wind power generator according to the present invention.
Figure 6 is a plan view showing the appearance of a wind power generator according to the present invention.
Figures 7 to 10 are a perspective view, a front view, a right side view, and an AA cross-sectional view, respectively, showing a wind induction mechanism, which is the main component of the present invention.
FIG. 11 is a drawing of two neighboring triangular pyramids spread out on a plane to show a valley formed between the triangular pyramids of the present invention.
Figure 12 is a drawing showing the development shape of a flat plate, which is a basic material for forming a triangular pyramid of the present invention.
Figure 13 is a drawing showing a V-shaped folded plate formed by folding the flat plate of Figure 12 into a V shape.
Fig. 14 is a perspective view of the rotating member of the present invention.
Fig. 15 is a side view of the rotating member of the present invention.
Figure 16 is a drawing showing a cross-sectional shape of a rotating member of the present invention.
Figure 17 is a drawing showing a temporary example of the blade shape of the present invention.
Figure 18 is a cross-sectional view of the entire wind power generator of the present invention.
Figure 19 is an enlarged cross-sectional view of a main part of a wind induction mechanism of a wind power generator of the present invention.
Figure 20 is an enlarged cross-sectional view of a main part of the generator section of the wind power generator of the present invention.
Figure 21 is a perspective view showing an example of a small wind power generator that is portable and can be installed freely.
Figure 22 is a cross-sectional view of a small wind turbine that is portable and can be freely installed.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings in order to fully understand the present invention. The embodiments of the present invention may be modified in various forms, and the scope of the present invention should not be construed as being limited to the embodiments described in detail below. The present embodiments are provided to more completely explain the present invention to those with average knowledge in the art. Therefore, the shapes of elements in the drawings may be exaggerated in order to emphasize a clearer description. It should be noted that in each drawing, the same parts are sometimes depicted with the same reference numerals. In addition, detailed descriptions of well-known functions and configurations that may unnecessarily obscure the gist of the present invention will be omitted.

Also, the terminology used herein is used to describe particular embodiments only and is not intended to be limiting of the present invention. As used herein, the singular forms "a", "an" and "the" include plural forms unless the context clearly dictates otherwise. Also, when used herein, the words "comprise" and/or "comprising" specify the presence of stated features, numbers, steps, operations, elements, elements and/or groups thereof, but do not preclude the presence or addition of one or more other features, numbers, operations, elements, elements and/or groups thereof.

In addition, the thickness of lines depicted in the drawings or the sizes of components may be exaggerated for the sake of clarity and convenience of explanation. In addition, since the terms described below may vary depending on the intention or custom of the user or operator, the definitions of these terms should be made based on the contents throughout this specification. In the definition of terms, "upstream" or "entry end (or entry end)" refers to the side from which the wind blows, that is, the side where the wind enters, and "downstream" or "discharge end (or discharge end or exit end)" refers to the side from which the flowing wind is discharged.

Hereinafter, each embodiment of the present invention will be described in detail with reference to the attached drawings.

FIG. 3 is a perspective view showing the exterior of a wind power generator according to the present invention, FIG. 4 is a front view showing the exterior of a wind power generator according to the present invention, FIG. 5 is a left side view showing the exterior of a wind power generator according to the present invention, and FIG. 6 is a plan view showing the exterior of a wind power generator according to the present invention.

The wind power generator, which is represented by symbol 10 as a whole, can be roughly divided into a wind induction mechanism (12) that induces blowing wind and sprays it in a concentrated state, a rotating member (14) that rotates due to the wind induced and concentrated by the wind induction mechanism and a support pillar member (16) that supports the wind induction mechanism (12).

Figures 7 to 10 are a perspective view, a front view, a right side view, and an A-A cross-sectional view, respectively, showing a wind induction mechanism, which is the main component of the present invention.

The wind induction mechanism (12) is a mechanism that induces and concentrates wind to the rotating member (blade mechanism) of the wind power generator (10), and has a conical diffuser body (24) that gradually increases in diameter from the entry end (18) where the wind enters toward the exit end (exhaust end) (20) where the wind is discharged to supply the wind to the rotating member (14), and forms a space (22) on the inside, and a plurality of triangular pyramids (tetrahedrons) (26) protrude in the shape of wrinkles (28) on the outer periphery of the downstream side starting from approximately the middle of the diffuser body (24) to the exit end (20), that is, to form a wind induction and concentration part, and a valley part (30) for wind induction is formed between the adjacent protruding triangular pyramids (26) and the triangular pyramids (26), and the valley part (30) is formed so that the width (b1) is wide on the upstream side where the wind enters and the width gradually narrows on the downstream side where the wind is discharged (Fig. (See 11).

The above conical diffuser body (24) is formed as a cone with a pointed end at the upstream end (18) through which the wind enters, or, although not shown, is formed as a cone with a cross-section formed vertically at a predetermined distance from a pivot point, with the upstream end having a circular cross-section.

The above-described wrinkles (28) forming the wind induction focus are in the form of mountains and valleys that are repeated and continuous when viewed from the front view (looking like a sunflower shape), and the plurality of triangular pyramids (26) forming the wrinkles (28) are formed by processing a plate (32) (see the plate shape of the developed view in FIG. 11), and the V-shaped folded plate (32a) (see FIG. 13) obtained by folding the plate (32) into a V shape to form a predetermined angle (θ) centered on the upper edge line (34) to form the inclined side walls (26a, 26b) on both sides of the triangular pyramid (26) is welded and attached to the outer periphery of the conical diffuser body (24), or the triangular pyramids (26) forming the wrinkles (28) are formed by casting as a single body with the conical diffuser body (24), injection molding as a single body, or press-processing as a single body.

The wind induction device (12) of this structure is aligned so that the cone-shaped apex, i.e., the entry end (18) side faces the wind direction when the wind blows. At this time, all the wind that hits the cone-shaped diffuser body (24) is guided toward the wrinkle (28) side while being diffused along the cone-shaped surface, so that the wind is concentrated in a ring shape at the wrinkle (28) part, which is the wind induction concentration part. The concentrated wind is divided into two sides again at the entry-side apex (26c) where the triangle (26) begins and begins to flow, and the wind that continues to flow through the entry width (b1) of the valley (30) gradually narrows due to the induction action between the side walls (26a, 26b) on both sides, and the pressure (wind pressure) of the wind passing through the narrowing valley (30) gradually increases and the flow speed begins to increase. That is, due to the structure of the valley section (30), a pressure difference occurs between the wind inlet side and the discharge side. Accordingly, the air discharged through the outlet side of the valley section (30) receives a large pressure from the rear, so that the discharge speed increases significantly and is discharged at a high speed as if being sprayed through a nozzle, and the wind sprayed at a high speed in this way is supplied to the rotating member (14) to rotate the rotating member (14).

FIG. 14 is a perspective view of the rotating member of the present invention, FIG. 15 is a side view of the rotating member, and FIG. 16 is a drawing showing a side cross-sectional shape of the rotating member.

The rotating member (14) is installed at the outlet end of the wind induction device (12), and has a hub (36) of a cylindrical body or a cone-shaped body whose diameter gradually increases from the side where the wind is drawn in to the side where it is discharged, and a plurality of blades (38) are provided radially at a predetermined interval on the outside of the hub (36) of the cylindrical body or the cone-shaped body.

The wind entry end of the cone body (36) forming the hub, i.e., the small diameter portion, is blocked by a support plate member (40), and a boss (44) is provided at the center of the support plate member (40) to support the rotation shaft (42) by inserting the rotation shaft (42) into the center hole and fixing it with a key.

The above blade (38) can be formed to have a twist angle (α) of approximately 45° with respect to the direction of the wind, but it is preferable to design it to have a profile that can optimally receive the force of the wind and increase the rotational force.

To this end, the blades (38) are designed to have a spiral structure, and the width (t1, t2) in the height direction of the blades is designed to gradually increase from the discharge end (downstream) to the inlet end (upstream) (t2<t1), so that the volume difference is large and an air pressure difference is effectively generated (see Fig. 16).

And it is preferable that the cone angle of the conical body (36) be formed to have a larger angle than the cone angle of the conical diffuser body (24), as this induces the wind ejected from the valley portion (30) of the wrinkle (28) to be more concentrated on the blade (38).

The above blade (38), as illustrated in FIG. 17, is designed to have a predetermined angle (α1), for example, 45°, at the wind entry end, and the angle gradually increases (α1 < α2 < α3) toward the downstream side where the wind exits, so that the discharge end side is bent toward the entry end side to form a curved surface. According to this shape, when the wind blowing out at high speed through the exit end (discharge end) of the valley section (30) first collides with point A, which is upstream of the blade (38), the rotating member (14) begins to rotate. At this time, the twist angle α1 of the blade (38) at point A is approximately 45°, so that the rotational force in the rotational direction of the blade (38) is most efficiently applied.

However, when the blade (38) rotates, a rotational inertial force is generated, and as the position of the blade (38) moves due to the rotation, point B of the blade comes to a position facing the exit end (discharge end) of the valley section (30). Since the twist angle α2 at point B is greater than α1, point B of the blade (38) receives a stronger wind force, which increases the rotational speed of the blade (38), and this phenomenon occurs more significantly at point C. The reason for this is that when the initial twist angle of the blade (38) is greater or less than 45°, the force acting in the rotational direction becomes small in either case, making it difficult to secure sufficient rotational inertial force. Therefore, when the blade (38) initially enters the wind, the twist angle is designed to be approximately 45° to facilitate rotation as much as possible, and when the rotational inertial force is generated, the axial wind pressure applied to the blade (38) is increased so that the wind pressure is expressed as rotational force, and α2 and α3 are gradually increased toward the downstream side to increase the wind pressure received by the blade (38).

Meanwhile, the blade (38) is not shown, but a part of the lower part on the upstream side is fixed to the outer surface of the cone and the remaining part is separated from the cone (38). The blade is formed of an elastic body, so that when the wind pressure or wind speed exceeds a set value, it is deformed backwards by the wind pressure to bypass a part of the wind pressure, thereby preventing excessive rotation of the rotating member (14).

Figure 18 is a cross-sectional view of the entire wind power generator (10) of the present invention, Figure 19 is an enlarged cross-sectional view of a main part of a wind induction mechanism (12) portion of the wind power generator (10), and Figure 20 is an enlarged cross-sectional view of a main part of a generator portion of the wind power generator.

The wind induction device (12) equipped with a rotating member (14) is supported by a vertically installed column support member (16). To this end, the upper support member (16a) of the column support member (16) is connected to and supported by the bottom surface of the conical diffuser body (22), and a connection hole (46) for connecting the upper support member (16a) is formed on the bottom surface of the conical diffuser body (22).

A rotational shaft support member (48) is installed inside the upper support member (16a), and the rotational shaft support member (48) is in a pipe shape and extends into the space (22) of the conical diffuser body (22), and a rotational shaft (42) on which the rotational member (14) is rotatably mounted passes horizontally across the rotational shaft support member (48), so that the rotational shaft (42) is rotatably supported by the rotational shaft support member (48).

On both sides of the above-mentioned rotation shaft support member (48), front and rear plate support members (52)(54) are fixed to the conical diffuser body (22) by bolts, riveting, spot welding, etc. through a plurality of brackets (50) in close contact with the inner surface of the conical diffuser body (22) with bolts (56), so that the rotation shaft (42) is firmly supported without shaking within the conical diffuser body (22). At this time, the front and rear support plate members (52, 54), the rotation shaft support member (48), and the upper cover (58) covering the open upper part of the rotation shaft support member (48) are all fastened together with bolts (56) and fixed.

The above-mentioned rotary shaft support member (48) supports the rotary shaft (42) so as to be rotatably supported by interposing a bearing support means (60) such as a ball bearing or roller bearing, and a power direction change mechanism (62) is installed on the rotary shaft (42) inside the rotary shaft support member (48).

The above power direction conversion mechanism (62) is intended to transmit rotation to a vertical rotation axis (64) that is vertically disposed at a right angle to the rotation axis (42), and as shown in the enlarged view of the main part of FIG. 19, bevel gears capable of changing the rotation direction by 90° are used, and are composed of a main bevel gear (66) fixed to the rotation axis (42) with a key, a driven bevel gear (68) whose teeth are meshed with the driven bevel gear (66), and an idle bevel gear (70) that is installed on the rotation axis (42) while meshing with the driven bevel gear (68), but is not fixed to the rotation axis (42) and thus slips with respect to the rotation axis (42). Accordingly, while the driving bevel gear (66) always rotates in the same direction as the rotation axis (42), the idle bevel gear (70) facing it on the same rotation axis (42) slips on the rotation axis and rotates in the opposite direction by the driven bevel gear (68). Although this idle bevel gear (70) is not necessary, it serves the function of preventing twisting of the rotation axis (70) and maintaining the balance of the device.

The above-mentioned driven bevel gear (68) is connected to a vertical rotation shaft (70) through a connecting hole (72), and the connecting hole (72) and the vertical rotation shaft (70) are supported by penetrating through support plate members (74)(76) which are each fixed to a rotation shaft support member (48) by bolts (56), and the support plate member (76) is supported by interposing a bearing (78) for smooth rotation of the vertical rotation shaft (76).

Figure 20 is an enlarged view showing the generator installation area, in which a support plate member (80) supports the lower portion of the upper support member (16a) and the rotation shaft support frame member (48), and the rotation shaft support frame member (48) is fixed to the support plate member (80) by a bolt (82) fixing means.

A generator housing (84) is provided on the bottom surface of the above-mentioned support plate member (80), and this generator housing (84) is fixed to the support plate member (80) using a bolt (86) fixing means.

Inside the above generator housing (84), a conventional generator (88) that produces electricity by rotating a vertical rotation shaft (64) is installed, and the generator (88) produces electricity by forming a magnetic field by a rotor (90) that is fixed to the vertical rotation shaft (64) and rotates, and a stator (iron core) (92) that surrounds the outside of the rotor (electromagnet).

The electricity produced in this way can be consumed by the user or sold to a power generation company, and can be stored in a capacitor installed inside the support pillar and taken out for use when needed.

The above generator housing (84) is supported so as to be able to rotate 360° on the horizontal plane with respect to the support pillar member (16) installed to be supported on the ground while being placed on the upper end of the lower support pillar member (16), and a thrust bearing (94) is interposed between the members on both sides to withstand a large load applied in the vertical axis direction and also to enable smooth rotation on the horizontal plane, and in order to prevent shaking during rotation and stably support rotation, the upper end of the support pillar member (16) is configured in a form accommodated in a grooved receiving portion (96) formed on the lower end of the generator housing (84), so that a cylindrical slit portion (98) surrounds the outer periphery of the support pillar member (16), thereby enabling stable rotation support of all upper structures including the generator housing (84).

And, on the outside of the generator housing (84), a wind receiving alignment member (100)(100) having a semicircular cross-section shape similar to a pipe cut in half is installed symmetrically on both sides so as to be parallel to the central axis of the rotation shaft (42), so that when the wind direction has a wind angle that does not match the central axis of the rotation shaft (42), the wind receiving alignment member (100)(100) that receives surface pressure rotates to always be aligned to the direction of the wind, and this alignment to the wind direction is also induced by the conical diffuser body (24) as described above, so that the present invention has a double mechanism for wind alignment and thus has the effect of quickly responding to the wind direction that changes frequently and being aligned.

FIGS. 21 and 22 illustrate an embodiment of a small-sized wind power generator that is portable and can be freely installed, and its basic structure is largely the same as that of the embodiment of FIG. 3, except that the wind power generator (10) according to the embodiment of FIG. 3 has a generator (88) installed on a vertical rotational axis, whereas the small-sized wind power generator (10') of the same embodiment has a generator (88') of a simple structure that produces electricity by utilizing the rotational power of a small generator, for example, a bicycle wheel, installed directly connected to the central rotational axis (42') within the conical diffuser body (24') of the wind induction member (12'). Here, the dynamo generator (88') is a commonly known mechanism that has an armature equipped with a coil on the outer periphery of the rotational axis (42'), an electromagnet (stator) that wraps around the outside of the armature to form a magnetic field, and other bearings, commutators, brushes, etc., so a detailed description of its configurations will be omitted.

And, at the wind-inlet end (upstream side) of the cone-shaped diffuser body (24'), i.e., the top portion, a portion of the body having a predetermined section size is formed as a transparent or semitransparent light-transmitting body (24a) and assembled to the main body (24'), and an LED light-emitting body (102) is installed inside the light-transmitting body (24a) so that electricity produced by the generator (88') is received through a wire (104) and the LED light-emitting body (102) emits light.

With this configuration, for example, when installed on a bridge railing, the LED light source (102) emits light outside the diffuser body when the generator (88') is driven by the river wind, thereby improving the lighting and appearance of the bridge. In particular, the conical diffuser body (24') is instantly aligned in response to the river wind whose direction changes frequently, and the light sways back and forth, thereby attracting attention and further enhancing the decorative effect.

In addition, the power generation device (10, 10') of the present invention, which can be designed to be much smaller than existing wind power generation devices in terms of size compared to the same power generation facility, can be installed not only on land and sea but also on ships or vehicles in operation, or on the roofs of buildings or the upper parts of streetlights, and has the advantage of being able to produce electricity and use it immediately. In addition, a small wind power generator such as that of Fig. 21 has an advantage in that it can pursue a decorative effect because its appearance is cute like a chicken.

It will be understood by those skilled in the art that the technical configuration of the present invention described above may be implemented in other specific forms without changing the technical idea or essential features of the present invention.

Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive, and the scope of the present invention is indicated by the claims described below rather than the detailed description above, and all changes or modifications derived from the meaning and scope of the claims and their equivalent concepts should be interpreted as being included in the scope of the present invention.

10, 10': Wind turbine 12, 12': Wind induction member
14, 14': Rotating member 16: Supporting column member
16a: Upper support member 18: Entry end
20: Entry end (exit end) 22: Space
24, 24': Conical diffuser body 24a: Light-transmitting body
26: Triangular pyramid (tetrahedron) 26: Triangular pyramid (tetrahedron)
26a, 26b: Sloped side wall 26c: Vertex
28: Wrinkle (wind induction concentration area) 30: Valley area
32: Sheet 32a: V-shaped folded sheet
34: Top edge 36: Cone body (hub)
38: Blade (wing) 40: Support plate member
42, 42': Rotation axis 44: Boss
46: Connection hole 48: Rotation shaft support member
50: Bracket 52, 54: Disc support
56: Bolt 58: Top cover
60: Bearing support means 62: Power direction change mechanism
64: Vertical rotation axis 66: Drive bevel gear
68: Driven bevel gear 70: Idle bevel gear
72: Connection 74, 76: Support plate member
78: Bearing 80: Supporting disc member
82, 86: Bolt 84: Generator Housing
88, 88': Generator 90: Rotor
92: Stator 94: Thrust bearing
96: Home receptacle 98: Scutt
100: Windshield alignment member 102: LED light
104: Frontline
b1: width of the entrance side of the canyon α1, α2, α3: twist angle of the blade
t1, t2: width (height) of the blade

Claims (12)

A wind induction device for obtaining wind power, comprising: a device for inducing and concentrating wind on a rotating member of a wind turbine, the device comprising: a conical diffuser body having a diameter that gradually increases from an entry end where wind enters toward an exit end where wind is supplied to blades of the rotating member and forming a space on the inside; and a wind induction and concentration portion having a plurality of triangular pyramids that are arranged in succession on the outer periphery of the exit end side of the diffuser body and protrude in a wrinkled shape; and a valley portion for inducing and concentrating wind is formed between the protruding triangular pyramids, the valley portion being wide on the upstream side where wind enters and gradually narrowing on the downstream side where wind is discharged. A wind induction device for obtaining wind power, characterized in that in the first paragraph, the conical diffuser body has an upstream end where the wind enters, which is a truncated cone or a circular cross-section with a pointed end. In the first paragraph, a wind induction mechanism for obtaining wind power, characterized in that the triangular pyramids forming the wrinkles are formed by welding and attaching a plate material bent into a V shape at a predetermined angle centered on an upper edge line to the outer periphery of the conical diffuser body so as to form inclined side walls on both sides, or the triangular pyramids forming the wrinkles are formed by casting as a single body with the conical diffuser body, or by injection molding as a single body, or by pressing as a single body. A wind induction device as defined in any one of paragraphs 1 to 3, and
A rotating member installed downstream of the conical diffuser body through which the wind of the above wind induction device is discharged so as to rotate by the wind induced and discharged through the valley section,
A rotation shaft installed within the conical diffuser body to rotatably support the rotation member, and
A wind power generation device characterized by comprising a generator that produces and outputs electricity by rotation of the above-mentioned rotating shaft. In the fourth paragraph, the wind power generator is characterized in that the rotating member has a plurality of blades having an inclination that converts the axial wind pressure sprayed through the valley portion on the outer periphery of the truncated cone body into a rotational component in a direction perpendicular to the axis and causes rotation. A wind power generator according to claim 5, characterized in that the blade is formed to have a 45° inclination angle on the upstream side where the wind enters, but has a greater inclination angle toward the downstream side. In the fifth paragraph, the wind power generator is characterized in that the blade is formed of an elastic body so that a portion of the lower portion on the upstream side is fixed to the outer surface of the cone and the remaining portion is separated from the cone, and the blade is deformed backward by the wind pressure when the wind pressure or wind speed exceeds a set value, thereby preventing excessive rotation of the rotating member. A wind power generator according to claim 4, characterized in that the generator is installed so as to be directly connected to the rotation shaft or is installed on a vertical rotation shaft that receives rotational power from the rotation shaft through a power direction conversion mechanism. A wind power generator according to claim 4, characterized in that the conical diffuser body is supported by a support column member and is supported so as to be rotatable 360° on a horizontal plane with respect to the support column member through a horizontal bearing. In claim 9, a wind power generation device characterized in that a wind receiving alignment member having a semicircular cross-section is installed symmetrically on both sides so as to be parallel to the central axis of the rotation axis on the outside of the support pillar member, so that the central axis of the rotation axis is always aligned to the direction of the wind by the wind receiving alignment member. A wind power generator characterized in that in the fourth paragraph, a part of the upstream side of the conical diffuser body is formed as a transparent or translucent light-transmitting body, and an LED light-emitting body is installed inside the light-transmitting body to emit light using electricity produced by the generator as a power source. A wind power generator according to claim 4, characterized in that it has a capacitor that stores electricity produced from the generator.

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