JP2005147054A - Vertical shaft windmill power generating device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To efficiently perform wind power generation by stabilizing wind power, in regard to a wind power generating device using a vertical shaft windmill. <P>SOLUTION: The vertical shaft windmill power generating device is structured of the vertical shaft windlmill 1, an upper and a lower flow control plates 2 and 3 arranged in parallel with each other near an upper and a lower surfaces of the vertical shaft windmill 1, doughnut-like air-guide plates 2a and 3a extended outside in the radial direction from outer peripheral edges of the upper and the lower flow control plates 2 and 3, while tilting upward from the upper flow control plate 2 and tilting downward from the lower flow control plate 3, a generator 4 to be driven by the rotating force of a rotary shaft 6 as an output shaft of the vertical shaft windmill 1 and arranged in a bottom part of a housing 15 supporting the lower flow control plate 3, and interval holding materials 9, 9 for holding the upper and the lower flow control plates 2 and 3 with the predetermined interval. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a vertical axis wind turbine generator using a vertical axis wind turbine such as a paddle type wind turbine, a cross flow type wind turbine, a Darrieus type wind turbine, or a Savonius type wind turbine, and more particularly, to efficiently generate power by using wind energy. The present invention relates to a vertical axis wind turbine generator.

  Technology using wind power as power has an old history along with water turbines, but in recent years, wind power generation technology has attracted attention as part of the use of clean energy. Wind turbines that generate wind power include horizontal shaft wind turbines such as propeller type wind turbines and multi-blade wind turbines, and vertical axis wind turbines such as paddle type wind turbines, cross flow type wind turbines, Savonius type wind turbines, and Darius type wind turbines. Horizontal-axis wind turbines represented by propeller-type wind turbines are often used as commercial-use large wind turbines.

  In many cases, wind farms using horizontal axis wind turbines are installed at many locations where strong winds can be expected, such as coastal areas and hills, to form window farms. In particular, propeller-type windmills are the most technologically advanced technology derived from research on aircraft propellers. However, advanced metalworking techniques are required for blade processing.

  In addition, the horizontal axis windmill has drawbacks such that the rotating surface of the windmill must always be aligned with the windward, and heavy objects such as a transmission mechanism, a control mechanism, and a generator must be attached to the top of the support tower. On the other hand, when a vertical axis wind turbine is used, it is rotated by receiving wind from the entire circumference, so it does not depend on the wind direction, and heavy objects can be installed on the ground or in the middle of the support tower. It has the advantage that it is simple compared to, and is used for relatively small wind turbine equipment.

  Regardless of the type of wind power generation equipment, many ideas have been devised to make effective use of winds that are constantly changing in both direction and wind. In wind power generation equipment using a horizontal axis wind turbine, there is a configuration that uses a vertical tail as the simplest means for always facing the wind turbine rotation surface to the wind direction, but instead, a wind direction sensor and a servo motor are used. By using these, more precise automatic direction control has been performed.

  On the other hand, in order to effectively use wind power, a wind tunnel in which the diameter on the front end side is narrowed and the diameter on the rear side is expanded is used. A wind speed increasing device that increases the flow speed using the principle described above and a wind power generator using the device are disclosed (Patent Document 1).

  In order to use wind power as effectively as possible, the wind turbine generator has a wind tunnel with an extended portion protruding toward the front side of the wind turbine and collides the air flow from the narrowed wind tunnel exit with the rotor blades of the horizontal axis wind turbine. Equipment is also disclosed (Patent Document 2).

  However, for example, attaching a wind tunnel to a horizontal axis type wind turbine such as a propeller type has a blade length of 10 m or more, and in any case, the air intake size is several tens of meters or more. It becomes a very large problem, and it becomes a very difficult problem in practice to move it according to the wind direction.

JP 2002-213343 A JP-A-9-88800

  The present invention provides a vertical axis wind power generator capable of efficiently generating wind power by efficiently using and stabilizing wind power in a wind power generator using a vertical axis wind turbine. This is the problem to be solved.

1 of the present invention includes one or more vertical axis wind turbines located in the middle;
Upper and lower rectifying plates that are located close to the upper and lower surfaces of the vertical axis wind turbine, are parallel to each other, and their outer edge portions are located outward from the projection portion of the vertical axis wind turbine;
A baffle plate disposed on one or both of the upper and lower rectifying plates so that one or both of them are inclined so that an interval between the two expands outwardly;
A generator that is rotationally driven by the rotational force of the output shaft of the vertical axis wind turbine;
It is the vertical axis wind power generator comprised by these.

  According to a second aspect of the present invention, in the vertical axis wind power generator according to the first aspect of the present invention, the vertical axis wind turbine is a single unit, the upper and lower rectifying plates are disk-shaped, and the vertical axis wind turbine is It is located in the center between the current plate.

  A third aspect of the present invention is the vertical axis wind power generator according to the first aspect of the present invention, wherein the vertical axis wind turbine includes a plurality of units, and the upper and lower rectifying plates are polygonal plate shapes with rounded corners, A plurality of vertical axis wind turbines are arranged in an average positional relationship between the upper and lower rectifying plates.

  4 of the present invention is a cylindrical greenhouse arranged below the upper and lower rectifying plates in the vertical axis wind power generator of 1, 2, or 3 of the present invention, wherein an air inlet is provided below And an auxiliary windmill arranged in the middle of the cylindrical greenhouse in the up-down direction and rotated by an updraft heated by solar heat and rising up the cylindrical greenhouse. Auxiliary rotation drive means comprising an auxiliary wind turbine and a rotation transmission unit that transmits the rotational force of the auxiliary wind turbine to the rotation shaft of the vertical axis wind turbine is additionally provided.

  5 of the present invention is the vertical axis wind power generator according to 1, 2, 3 or 4 of the present invention, wherein a solar cell panel is installed on the upper surface of the upper and lower rectifying plates, and wind power generation is performed. In addition, solar cell power generation is possible.

  6 of the present invention is the vertical axis wind power generator of 1, 2, 3, 4 or 5 of the present invention, wherein the vertical axis wind turbine includes a paddle type wind turbine, a Darius type wind turbine, a cross flow type wind turbine, and a Savonius type wind turbine. One of the wind turbines selected from among the S-type rotor and the gyro-mill type wind turbine is adopted.

  According to the vertical axis wind power generator of 1 of the present invention, since the wind turbine used is a vertical axis wind turbine, it responds to the horizontal omnidirectional wind without any problem and frequently changes the wind direction. However, it is possible to convert this into a rotational force satisfactorily, but further, one or both of them are inclined in the direction of enlarging between the outer edge portions of the upper and lower rectifying plates outward. Therefore, a wider range of wind can be guided between the rectifying plates to increase the speed, and the flow of the wind can be rectified between the rectifying plates to efficiently collide with the rotor blades of the vertical axis wind turbine. It is also a thing. The wind guide plate further guides the wind blown from the top and bottom oblique directions between the rectifying plates, and these winds can also be rectified between the rectifying plates and collide with the rotor blades of the vertical axis wind turbine efficiently. Therefore, even if the surrounding wind force is slightly small, or even if the wind direction is slightly upward or downward, more power can be obtained from the vertical axis wind turbine, which can contribute to stable wind power generation.

  According to the vertical axis wind power generator of 2 of the present invention, when a single vertical axis wind turbine is used, the wind from all horizontal directions is efficiently collected, accelerated, and rectified. It is possible to make the wind turbine collide and efficiently convert it into a rotational force without lowering the energy.

  According to the vertical axis wind power generator of 3 of the present invention, a plurality of vertical axis wind turbines can be more efficiently arranged between the rectifying plates to obtain more wind energy and convert this into larger electric power. It becomes.

  According to the vertical axis wind power generator of No. 4 of the present invention, it is possible to generate an updraft by using solar heat on a sunny day, and to convert the energy into an auxiliary rotational force.

  According to the vertical axis wind power generator of 5 of the present invention, solar cell power generation is enabled in addition to wind power generation using the upper surface of the rectifying plate which is a vacant plane.

  According to the vertical axis wind turbine generator 6 of the present invention, it is possible to configure various types of vertical axis wind turbines by freely using them.

  The present invention basically has a vertical axis wind turbine positioned in the middle, upper and lower rectifying plates positioned close to the upper and lower surfaces of the vertical axis wind turbine, and inclined to the outer edges of the upper and lower rectifying plates. It is a vertical axis wind power generator configured by a wind guide plate and a generator that is rotationally driven by the rotational force of the output shaft of the vertical axis wind turbine.

  Needless to say, the vertical axis wind turbine is a means for converting wind power into rotational force, which can be composed of one or more. The vertical axis wind turbine is not limited to a specific one, and is appropriately determined in consideration of the installation location conditions and the like from a paddle type wind turbine, a Darrieus type wind turbine, a Savonius type wind turbine, a cross flow type wind turbine, an S type rotor or a gyromill type wind turbine. Can be selected and adopted. Of course, other vertical wind turbines can be used.

  By the way, the paddle type windmill is a windmill having a hemispherical wind receiving portion having a concave surface and a convex surface, and is known as a Robinson anemometer. The windmill rotates due to a drag difference generated by the wind hitting the concave and convex surfaces of the hemispherical wind receiving portion. The drag force on the concave surface of the hemispherical wind receiving portion is approximately four times that of the convex surface. The Darrieus-type windmill is a windmill using lift by attaching two to three bent blades of airfoil cross section to a vertical axis. This windmill can extract about 35% of the energy of the wind and is also suitable for wind power generation.

  The Savonius-type windmill is a windmill that utilizes a drag difference with a structure in which a wind-receiving bucket having a shape of a cylinder cut in half is faced and slightly shifted from the center. The crossflow type windmill is a windmill having a shape similar to a sirocco fan of an air conditioner blower, in which a large number of arc-shaped elongated rotor blades are attached along a circumference around an axis. The S-shaped rotor is a windmill in which a metal plate curved so as to have an S-shaped cross section is attached around a vertical axis. The semi-cylindrical concave wind receiving surface and the opposite convex surface rotate by a drag difference of about twice. The gyromill type windmill is a special vertical axis windmill in which two to four symmetric airfoil linear blades are mounted on concentric circles.

  The upper and lower rectifying plates can be configured in a disc shape or a polygon plate shape having a triangular shape or more. When a single vertical axis wind turbine is disposed between the upper and lower rectifying plates, the rectifying plate is generally disc-shaped, and the vertical axis wind turbine is suitably positioned at the center of the upper and lower rectifying plates. In addition, when arranging a plurality of vertical axis wind turbines, it is appropriate that the current plate is a polygonal plate with rounded corners, and the plurality of vertical axis wind turbines are arranged in an average positional relationship between the upper and lower current plates. It is appropriate to do. More specifically, a plate material with rounded corners in a rectangular shape or various polygonal shapes can be employed. In any case, the upper and lower rectifying plates need to be configured such that the outer edge portions thereof are positioned outward from the projection portion viewed from the plane of the vertical axis wind turbine disposed therebetween. Although it is appropriate that the upper and lower rectifying plates have the same size and shape, it is not limited to this. It is also possible to make either one larger than the other for convenience.

  A wind guide plate is formed on the outer edges of the two rectifying plates so as to extend outward. These air guide plates are configured such that the distance between them increases outward. Both wind guide plates are inclined so that the distance between them spreads toward the outer edge, that is, the lower wind guide plate is inclined downward toward the outer edge, and the upper wind guide plate is at the outer edge. It can comprise so that it may incline upwards. Alternatively, one of the upper and lower wind guide plates extends horizontally, and only the other extends toward the outer edge so that the distance between the two widens. That is, for example, the lower wind guide plate is extended horizontally, It is also possible to incline the air guide plate upward toward the outer edge, or to extend the upper air guide plate horizontally and incline the lower air guide plate downward toward the outer edge. Moreover, these baffle plates can also be configured such that the angle can be changed.

Of these wind guide plates, an upwardly inclined wind guide plate or a downwardly inclined wind guide plate does not necessarily have to be linearly inclined upward or downward, for example, with the inclination angle at the outer edge. It can also be configured such that the angle gradually becomes larger. It goes without saying that the air guide plate can be provided with slight irregularities such as corrugations according to the surrounding wind conditions.
Thus, the overall shape of the current plate and the air guide plate is substantially plate-shaped or dish-shaped. The upper one is a plate or an upward dish, and the lower one is a plate or a downward dish.

  These air guide plates are formed by extending a plate material constituting the current plate as it is from a predetermined part, or bending it at a predetermined direction and angle at a predetermined part, or other members on the outer edge of the current plate. Can be combined.

  The upper and lower rectifying plates are maintained with a suitable structure material. For example, both the upper and lower sides can be configured to be coupled with a plurality of bar members or pipe members at positions where they do not hinder the rotation of the vertical axis wind turbine, and the distance between them can be maintained. It is appropriate to arrange the bar or pipe material in the vicinity of the outer edge portions of the upper and lower rectifying plates at a constant angular interval, for example, an angular interval such as 120 degrees or 90 degrees.

  As described above, the upper and lower rectifying plates are integrally formed with the air guide plate to form a plate shape or a plate shape. There is a possibility that rainwater may stay on the current plate, and means for removing the rainwater is required. This can be configured, for example, using a pipe material that is a structural material for holding the upper and lower rectifying plates at a predetermined interval. The upper end of the pipe material is opened through the upper surface of the upper rectifying plate, the lower end is opened through the lower surface of the lower rectifying plate, and the rain water staying on the upper surface of the upper rectifying plate is opened. It can comprise so that it may flow down to the bottom of a downward baffle plate. The pipe body can be further extended to allow rainwater to flow down to the drainage facility. The lower end of the pipe body extends to the bottom of the lower rectifying plate. From here, an appropriate hose member is connected to the drainage facility. It can also be configured to allow rainwater to flow down.

  The generator is installed at an appropriate place below the upper and lower rectifying plates. Moreover, the kind is not ask | required. In the case of a device having a single vertical axis wind turbine, it is appropriate to install it at any position on the lower extension of the rotating shaft that is the output shaft. In this case, the input shaft can be set up vertically and can be connected directly to the rotary shaft of the vertical axis wind turbine via a gear box or the like. In the case of a device having a plurality of vertical axis wind turbines, a generator is coupled to each of the vertical axis wind turbines in the same manner as described above, or the rotation of the plurality of vertical axis wind turbines is performed via a transmission means such as a gear. The force can be transmitted to one rotating shaft, and the rotational force of the rotating shaft can be coupled directly or not via a gear box or the like. Usually, it is appropriate to combine a generator for each vertical axis wind turbine.

  In the vertical axis wind turbine, a rotating shaft that is an output shaft thereof is rotatably supported by, for example, bearings attached to the upper and lower rectifying plates.

  Various auxiliary rotational drive means can be attached to the vertical axis wind power generator. For example, this comprises a cylindrical greenhouse space below the upper and lower rectifying plates, an air inlet is opened below the greenhouse space, an air outlet is opened above, and the greenhouse space is further opened. An auxiliary windmill is arranged in the middle of the vertical direction of the wind turbine, the auxiliary windmill is heated by solar heat and is rotated by the rising airflow that rises in the greenhouse space, and the rotational force of the obtained auxiliary windmill is transmitted via the rotation transmission unit. It can comprise so that it may transmit to the rotating shaft of the said vertical axis windmill.

  Further, a solar cell panel may be installed on the upper surface of the upper and lower rectifier plates so as to perform solar cell power generation in addition to wind power generation. The upper rectifying plate is integrally formed with the air guide plate formed on the outer edge of the plate, or has a plate shape or a dish shape as a whole. It can be closed with a disk having the same diameter as the outer diameter of the air guide plate, and a solar cell panel can be disposed thereon. In such a case, sunlight is more easily irradiated on the panel surface, which is convenient. In addition, even in such a case, there is an advantage that the problem that the rainwater stays thereon does not occur.

  Therefore, according to the vertical axis wind power generator of the present invention, naturally, the wind blowing around this is guided between the rectifying plates by the upper and lower wind guide plates, and collides with the rotating blades of the vertical axis wind turbine between them to rotate it. It will be. If the wind blowing around the device at the height between the outer edges of the upper and lower wind guide plates is blown between the outer edges of the upper and lower wind guide plates, it is guided to the baffle plates with a narrower interval. The speed is further increased, the current is further rectified by the current plate, and collides with the rotor blades of the vertical axis wind turbine therebetween to efficiently rotate the vertical axis wind turbine. This works in the same way without generating a time lag, whether it is wind from any of the four directions, or wind that fluctuates strongly and direction, and is also used for the rotation of the vertical axis wind turbine It is done.

  In this way, it is possible to collect a wide range of wind and correct the turbulence of the air flow path, so that the energy held by the wind can be efficiently converted into motive energy, and preferable wind power generation is possible. Become.

  Moreover, according to the vertical axis wind power generator of the present invention, it can be used in a free operation form such as being operated in conjunction with a commercial power source or other power source, or operating alone. Furthermore, it is also possible to adopt a form in which surplus power generated when sufficient wind power is obtained is combined with a battery and used as necessary.

  As described above, when the solar cell panel is disposed on the upper surface of the upper rectifying plate, it can be used as a hybrid power generator. In such a hybrid power generation apparatus, by using both energy of wind power and sunlight, both of them act complementarily, and preferable power supply becomes possible. For example, even if there is no wind, it is possible to generate electricity if there is sunlight, and even if it is nighttime, significant cloudy or rainy, it is possible to generate electricity if the wind force is above a predetermined level.

  According to the vertical axis wind power generator of the present invention, the capacity can be appropriately selected according to the application, but it is desirable that the capacity be as large as possible when operation linked to a commercial power source is adopted. In such an increase in capacity, it is possible to configure only one large vertical axis wind turbine, but as described above, a plurality of vertical axis wind turbines and a set of generators are provided side by side. It is possible to easily cope with this by configuring them to operate in parallel.

  According to the vertical axis wind power generator of the present invention, it can be used effectively by installing it on the rooftop of a building or the like. In particular, it is suitable for installation on buildings with flat roofs. For example, it can be installed on the roofs of convenience stores, supermarkets, gas stations, various shops, office buildings, apartment buildings, and the like. The output of the vertical axis wind power generator installed in this way can be used as a power source for driving a refrigeration / freezer or an air conditioner, as well as a power source for lighting of a building in which it is installed. The vertical axis wind power generator of the present invention can be installed in a place where wind energy can be easily used by a steel tower or other support, and there is no inconvenient reason.

  Further, according to the vertical axis wind power generator of the present invention, it can be configured to be sufficiently flat as compared with a horizontal axis wind turbine represented by a propeller type wind turbine, so that it has mechanical strength against typhoons and other strong winds. But it is advantageous.

  As shown in FIG. 1, the vertical axis wind power generator according to the first embodiment includes a vertical axis wind turbine 1, upper and lower rectifying plates 2 and 3 positioned close to the upper and lower surfaces, and the upper and lower rectifying plates 2, 3, the wind guide plates 2a and 3a extended from the outer edge of the generator 3, and the generator 4 that is rotationally driven by the rotational force of the output shaft of the vertical axis wind turbine 1 are configured as basic components. A solar cell panel 5 arranged on the upper part of the upper rectifying plate 2 as an accessory element is attached.

  Needless to say, the vertical axis windmill 1 is means for converting wind force from the horizontal direction into rotational force. In this embodiment, a Darrieus type windmill is adopted as the vertical axis windmill 1. As shown in FIG. 1, the vertical axis wind turbine 1 has a rotating shaft 6, which is an output shaft thereof, rotated by a bearing 7 fixed to the upper rectifying plate 2 and a bearing 8 fixed to the lower rectifying plate 3. By being supported freely, it is rotatably arranged between the upper and lower rectifying plates 2 and 3.

  As shown in FIG. 1, the rotating shaft 6 is suspended below the rectifying plate 3 below, and the lower end thereof is coupled to the input shaft of the generator 4.

  As shown in FIG. 2, the upper and lower rectifying plates 2 and 3 are configured in a disc shape, and the diameter thereof is configured to exceed the diameter of the rotating portion of the vertical axis wind turbine 1. is there. As described above, the rectifying plates 2 and 3 are provided with the vertical axis wind turbine 1 therebetween, and are set at intervals slightly exceeding the height. As shown in FIGS. 1 and 2, this interval is held by interval holding members 9, 9... Arranged between them at a constant angle interval of 90 degrees. These spacing members 9, 9... Are made of bar members that are as thin as possible so as not to be resistant to wind introduced between the upper and lower rectifying plates 2, 3. However, one of the spacing members 9 is constituted by a pipe material that also serves as a drain pipe described later.

  As shown in FIGS. 1 and 2, doughnut-shaped air guide plates 2 a and 3 a are connected to the peripheral edges (outer edges) of the rectifying plates 2 and 3. As shown in FIG. 1, the air guide plate 2a of the upper rectifying plate 2 is configured to extend obliquely upward toward the outer periphery, and the overall shape of the rectifying plate 2 and the air guide plate 2a is a dish. It has become a shape. As shown in FIG. 1, the air guide plate 3a of the lower rectifying plate 3 is configured to extend obliquely downward toward the outer periphery, and the overall shape of the rectifying plate 3 and the air guide plate 3a is as follows. It has a downward-facing dish shape. The configuration of the upper rectifying plate 2 and the wind guide plate 2a and the configuration of the lower rectifying plate 3 and the wind guide plate 3a are symmetrical in shape and position.

  As described above, the upper rectifying plate 2 has a plate shape as a whole together with the air guide plate 2a at the outer edge portion thereof, so that rainwater accumulates on the upper portion in the rain. As described above, this rainwater is constituted by a pipe member in one of the interval holding members 9, 9... For holding the upper and lower rectifying plates 2, 3 at the predetermined interval, as shown in FIG. Further, the upper end is opened to the upper surface side of the upper rectifying plate 2, the lower end is penetrated to the lower rectifying plate 3, and the hose member 10 is connected to the lower end as shown in FIG. The rainwater is guided to flow down to a predetermined drainage facility.

  The generator 4 is disposed at the bottom of a housing 15 that supports the components of the rectifying plate 3 and the air guide plate 3a and above, and the rotary shaft 6 is coupled to the input shaft thereof as described above. As the generator 4, an AC generator having a capacity corresponding to the vertical axis wind turbine 1 is adopted, and its output is connected to a battery 12 via a rectifier 11, as shown in FIG. The purpose is to charge the battery 12 by rectifying the AC output of the generator 4 by the rectifier 11. The battery 12 is further connected to the solar battery panel 5 and is intended to charge the solar power generation output thereto. The battery 12 is also connected to an inverter 13 so that power stored in a general AC device can be converted into AC and supplied.

  The housing 15 is a bottomed cylindrical component. As described above, the generator 4 is disposed at the bottom of the housing 15, and the power supply circuit such as the battery 12 is disposed around the generator 4 inside the housing 15. It contains elements.

As shown in FIGS. 1 and 2, the solar cell panel 5 is fixed on the upper surface of the upper rectifying plate 2. At this time, it is needless to say that the position should be arranged so as not to block the opening of the upper portion of the spacing member 9 which also serves as a drain pipe. As described above and as shown in FIG. 3, the solar cell panel 5 is connected to the battery 12 in parallel with the output of the rectifier 11 so that both act complementarily.
In FIG. 3, reference numeral 14 denotes a backflow prevention diode.

  In the first embodiment, the vertical axis wind power generator configured as described above is installed and used on the roof of a building configured on a flat roof.

  Therefore, according to the vertical axis wind power generator of the first embodiment, the wind blown around this is guided between the rectifying plates 2 and 3 by the upper and lower air guide plates 2a and 3a, and is directed to the rotor blades of the vertical axis wind turbine 1 therebetween. By making it collide, this can be rotated, the wind energy can be taken out efficiently, and the generator 4 can be rotationally driven to generate electric power.

  Around this device, the air is blown at the height between the outer edges of the upper and lower air guide plates 2a and 3a, and the wind blown between these outer edges is gradually reduced inward from between the outer edges. The wind plates 2a and 3a are guided and accelerated between the rectifying plates 2 and 3 having the same interval as the inner edge thereof, and are further suitably rectified by the rectifying plates 2 and 3, and the turbulence of the air flow is corrected. Therefore, it will collide with the rotary blades of the vertical axis wind turbine 1 arranged between them. For this reason, it is possible to efficiently convert the retained energy of the wind into a rotating operation.

  Such wind speed increasing guide action by the wind guide plates 2a and 3a and the rectifying action by the rectifying plates 2 and 3 are such that the wind guide plates 2a and 3a and the rectifying plates 2 and 3 are opened in all horizontal directions, Since wind can be taken from all directions without distinction, the effect of any wind from any direction in the horizontal direction can be produced without causing a time lag and making a difference. It is something that can be done. Further, the speed increasing action and the rectifying action can be generated in the same manner even in the case of wind that frequently changes in strength and direction. Since the accelerated and rectified wind is used for the rotation of the vertical axis wind turbine 1, it is converted into an efficient rotational force and connected to the rotation shaft 6 of the vertical axis wind turbine 1. The generator 4 to be rotated is favorably driven and efficient power generation is performed.

  The AC power obtained by the generator 4 is rectified by the rectifier 11 and charged to the battery 12. When the inverter 13 is connected to a lighting fixture or the like of a building where the vertical axis wind power generator is installed, the necessary power is supplied to the lighting fixture or the like via the inverter 13 and the remaining power is supplied. Electric power is charged into the battery 12. When the wind power is weakened and the output of the generator 1 is less than the required power, the supplementary power from the battery 12 is also supplied to the inverter 13 side.

  On the other hand, during the daytime, it fluctuates depending on the intensity of sunlight, but power generation by the solar cell panel 5 is performed supplementarily, and the output thereof, together with the output of the generator 4, passes through the inverter 13 to lighting equipment or the like. The battery 12 is charged or the surplus is supplied.

  In addition, rain water that falls on the upper rectifying plate 2 in the rain or the like flows down through the pipe made of the spacing members 9, 9... And drainage equipment (not shown) via the hose member 10. Therefore, the stagnation on the current plate 2 can be avoided.

  As shown in FIG. 4, the vertical axis wind power generator of the second embodiment has an assist device (auxiliary rotation driving means) 16 attached to the first embodiment. In order to add this, the rotating shaft 6 of the vertical axis wind turbine 1 is configured to be elongated, and the lower end of the rotating shaft 6 is coupled to the generator 4 disposed at the bottom, and the housing 15 is connected to the assist device 16. Except for the three points of the point replaced with the cylindrical greenhouse 17 and the point provided with the assist device 16, the same as Example 1. Therefore, only different components will be described below.

  As shown in FIG. 4, the assist device 16 includes a cylindrical greenhouse 17 that rises from the periphery of the generator 4 positioned at the lowermost position to a position directly below the rectifying plate 3 below, and is shown in FIG. 4. Thus, it is basically configured with the auxiliary wind turbine 18 coupled in the middle of the rotating shaft 6 that extends down to the lowermost generator 4.

  The cylindrical greenhouse 17 is a bottomed cylindrical member made of transparent plastic, and as shown in FIG. 4, air inlets 17a, 17a,. In the upper part, air discharge ports 17b, 17b,... Opened in four directions are opened. This is a component that also serves as the housing 15 of the first embodiment.

  Further, as shown in FIG. 4, the auxiliary windmill 18 is a propeller type windmill attached near the middle of the rotary shaft 6 and is rotated in the same direction as the vertical axis windmill 1 by air moving upward from below. It is comprised so that it may do. The auxiliary wind turbine 18 is made of a plastic material and is light in weight, and is coupled to the rotary shaft 6 via an attachment means (rotation transmission portion) 19. As described above, the rotary shaft 6 extends from the bearing 8 to the lowermost part and is coupled to the input shaft of the generator 4 which is arranged at the lowermost part.

  The hose member 10 connected to the lower end of the spacing member 9, 9... Made of a pipe material is suspended along the outer surface of the cylindrical greenhouse 17 and drawn from the uppermost part to the side. It was made to guide down to the drainage facility.

  In Example 2, the vertical axis wind power generator configured as described above was started up from the ground and used.

  Therefore, according to the vertical axis power generator of the second embodiment, the same effect as that of the first embodiment can be obtained and the same effect can be obtained. On good days, you get the advantage of being able to continue spinning even if the wind is weak.

  When the weather is good, the air in the cylindrical greenhouse 17 of the assist device 16 is warmed by solar heat, and an ascending air current is generated. The rising air current collides with the auxiliary wind turbine 18 to generate a rotational force, which is transmitted to the rotational shaft 6 to assist the rotation of the vertical axis wind turbine 1. The ascending air current can be continued when air is continuously introduced from the lowermost air inlet 17a and the raised air is discharged from the uppermost air outlets 17b, 17b. Such rotation assistance by the assist device 16 is continuously performed on a sunny day, and even if the wind force changes temporarily or relatively for a long time due to fluctuations in wind force, At least the rotation can be continued.

  As shown in FIGS. 5 and 6, the vertical axis wind power generator of Example 3 includes five vertical axis wind turbines 1, 1, and upper and lower rectifying plates 22, 23 positioned close to the upper and lower surfaces thereof. The same number of generators 4, 4... That are rotationally driven by the rotational force of the output shafts of the vertical axis wind turbines 1, 1. And a solar cell panel 5 disposed on the upper part of the upper rectifying plate 22 as an accessory element.

  Therefore, in the third embodiment, the number of the vertical axis wind turbines 1 is increased to five compared to the first embodiment, and the size of the rectifying plates 22 and 23 is thereby compared with that of the first embodiment. The operation is the same except that the planar shape is changed and the number of generators 4 is increased. Therefore, the following description will focus on the different parts.

  The vertical axis wind turbine 1 is the same as that of the first embodiment except for the number of the vertical axis wind turbines, and a Darrieus type wind turbine is adopted. As shown in FIGS. 5 and 6, the five vertical axis wind turbines 1, 1,... Are arranged with one unit at the center and two units on both sides thereof. The rotary shaft 6, which is the output shaft, is rotatably supported by a bearing 7 fixed to the upper rectifying plate 22 and a bearing 8 fixed to the lower rectifying plate 23, so that the upper and lower rectifying plates 22, 23 are supported. It is freely arranged between the two.

  As shown in FIG. 5, the rotary shafts 6 are suspended below the rectifying plate 23 below, and the lower ends thereof are coupled to the input shafts of the generators 4 arranged at the bottom of the housing 25.

  As shown in FIG. 6, the upper and lower rectifying plates 22 and 23 are configured in a rectangular shape with rounded four corners, and the vertical and horizontal dimensions thereof are five vertical axis wind turbines 1, 1. As described above, it is assumed that there is a margin on the outer edge side in the state of being arranged between them. The interval between the upper and lower rectifying plates 22 and 23 is set so as to slightly exceed the height of the vertical axis wind turbines 1, 1. As shown in FIGS. 5 and 6, this interval is held by a total of six interval holding members 9, 9... Arranged in the middle of each corner and each long side. These spacing members 9, 9... Are configured as thin rod-shaped members as possible so as not to be resistant to wind introduced between the upper and lower rectifying plates 22, 23. Among them, the two spacing members 9 at the corners that are diagonal to each other are made of a pipe material that also serves as a drain pipe to be described later.

  As shown in FIGS. 5 and 6, air flow guide plates 22 a and 23 a having a quadrilateral belt frame shape are connected to the peripheral edges (outer edges) of the current plates 22 and 23. As shown in FIG. 5, the air guide plate 22a of the upper rectifying plate 22 is configured to extend obliquely upward toward the outer periphery at any part thereof, and includes the rectifying plate 22 and the air guide plate 22a. The overall shape is a dish. As shown in FIG. 5, the air guide plate 23 a of the lower rectifying plate 23 extends obliquely downward toward the outer periphery thereof, and the overall shape of the rectifying plate 23 and the air guide plate 23 a is as follows. It has a downward-facing dish shape. The configuration of the upper rectifying plate 22 and the air guide plate 22a and the configuration of the lower rectifying plate 23 and the air guide plate 23a are symmetrical in shape and position with respect to each other.

  On the upper rectifying plate 22, rainwater accumulates on the upper surface when it rains. As described above, this rainwater is constituted by a pipe material in one of the interval holding members 9, 9... For holding the upper and lower rectifying plates 22, 23 at the predetermined interval, as shown in FIG. The upper end is opened to the upper surface side of the upper rectifying plate 22, the lower end is penetrated to the lower rectifying plate 23, and the hose member 10 is connected to the lower end as shown in FIG. The rainwater is guided to flow down to a predetermined drainage facility.

  The five generators 4, 4... Are arranged at the bottom of the housing 25 that supports the rectifying plate 23 and the air guide plate 23 a and the corresponding vertical axis wind turbines 1, 1. As described above, the rotary shafts 6 of the vertical axis wind turbines 1, 1,. The outputs of the generators 4, 4... Are connected to a battery 12 via rectifiers 11 connected to each other as shown in FIG. The AC output of the generators 4, 4... Is rectified by the rectifiers 11, 11. The battery 12 is further connected to the solar battery panel 5 and is intended to charge the solar power generation output thereto. The battery 12 is also connected to an inverter 13 so that the stored power can be converted into an alternating current and supplied to a general alternating current device.

  The housing 25 is a bottomed rectangular box-shaped component, and as described above, the generators 4, 4... Are disposed at the bottom of the housing 25, and the generators 4, 4. A power supply circuit element such as the battery 12 is accommodated therein.

As shown in FIGS. 5 and 6, the solar cell panel 5 is fixed on the upper surface of the upper rectifying plate 22. Needless to say, it should be arranged so as not to block the opening at the top of the single spacing member 9, which also serves as a drain pipe. The solar cell panel 5 is connected to the battery 12 in parallel with the outputs of the rectifiers 11, 11... As shown in FIG.
In FIG. 7, reference numeral 14 denotes a backflow prevention diode.

  In this Example 3, the vertical axis wind power generator configured as described above is installed on the roof of a building configured on a flat roof, and the generated power is used for lighting fixtures, refrigerators / freezers, and air conditioners in stores in the building. To do.

  Therefore, according to the vertical axis wind power generator of the third embodiment, the wind blown around this area is guided between the rectifying plates 22 and 23 by the upper and lower air guide plates 22a and 23a, and the five vertical axis wind turbines 1 and 2 between them are guided. By colliding with the rotating blades 1..., These are rotated, the wind energy is efficiently extracted and the corresponding generators 4, 4.

  Although the size of the rectifying plates 22 and 23 is large and the planar shape is different from that of the first embodiment, the rectifying action of the wind introduced between them is performed, and the surrounding air guide plates 22a and 23a have a wide range. In the same manner as in the first embodiment, the wind is guided between the rectifying plates 22 and 23 having a smaller interval than between the outer edges thereof. Further, even in the case of winds that frequently change in strength and direction, the point that can be dealt with without problems is the same as that of the first embodiment. Accordingly, the vertical axis wind turbines 1, 1,... Disposed between the rectifying plates 22, 23 are efficiently rotated by the rectified and accelerated wind.

  The five vertical axis wind turbines 1, 1,... Are not all in the same condition due to the arrangement between the current plates 22 and 23 and the direction of the wind. Become. Usually, the vertical axis wind turbine 1 located substantially on the wind direction side receives a strong wind and the one located on the opposite side receives a weak wind. As a whole, the wind can be efficiently converted into rotational force without wasting it, and the rotational force can be transmitted to the generators 4, 4.

  The AC power obtained by the generators 4, 4... Is rectified by the rectifiers 11, 11. The output of the solar cell panel 5 is also charged to the battery 12. Alternatively, it is reconverted into AC power via the inverter 13 and used as a power source for lighting fixtures and air conditioners in the building. In short, the battery 12 is charged with excess power generation. When the power generation capacity is reduced due to a decrease in wind power or the like, the shortage is supplied from the battery 12. As described in the first embodiment.

  Further, as described in the first embodiment, the rainwater that has fallen on the upper rectifying plate 22 in the rain or the like flows down through the pipe made of the spacing members 9, 9. It will be guided down to the drainage facility (not shown) through the member 10, and stay on the current plate 22 is avoided.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic front cross-sectional explanatory view of a vertical axis wind power generator according to a first embodiment. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic plan view illustrating a vertical axis wind power generator according to a first embodiment. 1 is a block diagram of a power supply circuit of a vertical axis wind power generator according to Embodiment 1. FIG. FIG. 6 is a schematic front cross-sectional explanatory diagram of a vertical axis wind power generator according to a second embodiment. FIG. 5 is a schematic front cross-sectional explanatory view of a vertical axis wind power generator according to a third embodiment. FIG. 6 is a schematic plan view illustrating a vertical axis wind power generator according to a third embodiment. FIG. 6 is a block diagram of a power supply circuit of a vertical axis wind power generator according to a third embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Vertical axis windmill 2, 3, 22, 23 Current plate 2a, 3a, 22a, 23a Air guide plate 4 Generator 5 Solar cell panel 6 Rotating shaft 7, 8 Bearing 9 Spacing material 10 Hose member 11 Rectifier 12 Battery 13 Inverter 14 Diode 15, 25 Housing 16 Assist device (auxiliary rotation drive means)
17 Cylindrical greenhouse 17a Air inlet 17b Air outlet 18 Auxiliary windmill 19 Mounting means (rotation transmission part)

Claims (6)

One or more vertical axis wind turbines located in the middle;
Upper and lower rectifying plates that are located close to the upper and lower surfaces of the vertical axis wind turbine, are parallel to each other, and their outer edge portions are located outward from the projection portion of the vertical axis wind turbine;
A baffle plate disposed on one or both of the upper and lower rectifying plates so that one or both of them are inclined so that an interval between the two expands outwardly;
A generator that is rotationally driven by the rotational force of the output shaft of the vertical axis wind turbine;
A vertical axis wind power generator composed of   The vertical axis wind power generator according to claim 1, wherein the vertical axis wind turbine is a single unit, the upper and lower rectifying plates are disk-shaped, and the vertical axis wind turbine is positioned at the center between the upper and lower rectifying plates.   The vertical axis wind turbines are a plurality of units, and the upper and lower rectifying plates are polygonal plate shapes with rounded corners, and the vertical axis wind turbines are arranged in an average positional relationship between the upper and lower rectifying plates. The vertical axis wind power generator of Claim 1.   A cylindrical greenhouse disposed below the upper and lower rectifying plates, wherein an air inlet is provided below, an air outlet is provided above, and a cylindrical greenhouse opened in the vertical direction of the cylindrical greenhouse. An auxiliary windmill that is heated by solar heat and rotated by an updraft that rises up the cylindrical greenhouse, and a rotation transmission unit that transmits the rotational force of the auxiliary windmill to the rotation axis of the vertical axis windmill The vertical axis wind power generator according to claim 1, 2 or 3, further comprising auxiliary rotation driving means constituted by:   The vertical axis wind power generator according to claim 1, 2, 3, or 4, wherein a solar cell panel is installed on the upper surface of the upper and lower rectifier plates so as to enable solar cell power generation in addition to wind power generation.   The vertical axis windmill is any one selected from a paddle type windmill, a Darrieus type windmill, a cross flow type windmill, a Savonius type windmill, an S type rotor, and a gyromill type windmill. 4 or 5 vertical axis wind power generators.

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