JP2016205255A - Composite windmill - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a composite windmill which improves startability at a weak wind, and can suppress excessive rotation by a strong wind.SOLUTION: A composite windmill 1 comprises: a vertical shaft lift-type windmill 10; a vertical shaft drag-type windmill 20; and a connection/separation part 30 which connects the vertical shaft lift-type windmill 10 and the vertical shaft drag-type windmill 20 so that torque is transmitted between them, or separates them so that the torque is not transmitted between them. The connection/separation part 30 connects the vertical shaft lift-type windmill 10 and the vertical shaft drag-type windmill 20 at a weak wind time at which a rotation number of the vertical shaft lift-type windmill is smaller than a rotation number of the vertical shaft drag-type windmill, separates the vertical shaft lift-type windmill 10 and the vertical shaft drag-type windmill 20 at a middle wind time at which the rotation number of the vertical shaft lift-type windmill is smaller than an excessive rotation number, and larger than the rotation number of the vertical shaft drag-type windmill, and connects them at a strong wind time at which the rotation number of the vertical shaft lift-type windmill 10 is not smaller than the excessive rotation number.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a compound wind turbine in which two types of wind turbines are connected.

  In general, wind turbines for wind power generation include a horizontal axis type wind turbine (propeller type wind turbine) whose rotation axis is horizontal to the wind direction and a vertical axis whose rotation axis is perpendicular to the wind direction. An axial wind turbine is known. A horizontal axis type windmill has a feature that it is easy to obtain a rotational force (starting force) that starts a rotational motion from a rotating stationary state, and a vertical axis type windmill has a feature that it can rotate regardless of the direction of the wind. Have.

  Among them, in the vertical axis type windmill, a drag type such as a Savonius type or a paddle type in which a drag acting on a portion (blade) that generates aerodynamic force of the wind turbine is a main rotational force of the wind turbine, and a rotation direction of a lift acting on the blade A lift type such as a Darius type or a vertical wing type whose component is a main rotational force of a windmill is known.

  In the vertical axis drag type windmill, the blades are dragged by receiving wind in the rotating stationary state and the rotating state, and the rotational force generated by the drag starts rotating motion and continues to rotate. It is possible to rotate at a low speed. However, on the other hand, when the vertical axis drag type windmill has a circumferential speed ratio (ratio of blade rotation speed to wind speed) of 1, no moment is generated to turn the windmill beyond that, There is a problem that the above rotation speed cannot be obtained and the power generation efficiency is poor.

  Further, the vertical axis lift type windmill receives wind in a rotating state, thereby generating a rotational component of the lift in the blade, and the rotation is continued by the rotational force of the rotational component of the lift. Therefore, when the peripheral speed ratio is 1 or more, the aerodynamic characteristics of the windmill are improved, the rotational speed is increased, and high power generation efficiency can be obtained. On the other hand, however, the vertical axis lift type windmill deteriorates the aerodynamic characteristics of the windmill when the peripheral speed ratio is 1 or less, and the moment (rotational force) to turn the windmill becomes small. There is a problem in that a rotational force cannot be obtained because a rotational direction component of lift acting on the blade does not occur even when receiving wind.

  In order to improve such problems, wind turbines using drag and lift have been developed. For example, in Patent Document 1, in a vertical axis lift type wind turbine, a flap that can be opened and closed is provided at the blade, the flap is opened during low-speed rotation, and the rotation is assisted by the drag generated by the wind by the flap to increase the rotation speed. In connection with this, there is a description in which the flap is closed. Further, for example, in Patent Document 2, a vertical axis lift type wind turbine and a vertical axis drag type wind turbine are connected via a one-way clutch that transmits a rotational force only in one direction, and the driving torque of the vertical axis drag type wind turbine during low-speed rotation. Is transmitted to the vertical axis lift type wind turbine, and the connection is disconnected when the rotation speed of the vertical axis lift type wind turbine exceeds the rotation speed of the vertical axis drag type wind turbine.

JP 2008-202508 A JP 2005-171868 A

  However, the wind turbines described in Patent Document 1 and Patent Document 2 have a problem that a speed control mechanism and a powerful brake are required because the vertical axis lift type wind turbine is over-rotated in a strong wind. In addition, when the brake is broken, the vertical axis lift type windmill may be damaged due to excessive rotation. Furthermore, the windmill described in Patent Document 1 also has a problem that electric power is required to open and close the flap.

  The present invention has been made based on such a problem, and an object of the present invention is to provide a composite windmill that can improve startability in a weak wind and can suppress over-rotation in a strong wind.

  The compound wind turbine according to the present invention includes a vertical axis lift type wind turbine, a vertical axis drag type wind turbine, the vertical axis lift type wind turbine, and the vertical axis drag type wind turbine. They are connected so that torque is transmitted when the wind is weaker than the rotational speed of the windmill, and the rotational speed of the vertical axis lift type windmill is smaller than the overspeed and larger than the rotational speed of the vertical axis drag type windmill. They are provided with a connecting / disconnecting section that separates them so that torque is sometimes not transmitted, and connects them so that torque is transmitted when the wind speed of the vertical axis lift type wind turbine is higher than the excessive speed.

  According to the composite wind turbine of the present invention, when the wind is weak, the vertical axis lift type wind turbine and the vertical axis drag type wind turbine are connected so as to transmit the torque. The lift type windmill can be rotated. In addition, the vertical axis lift type wind turbine is separated from the vertical axis drag type wind turbine so that torque is not transmitted during medium winds, so the vertical axis drag type wind turbine does not hinder the rotation of the vertical axis lift type wind turbine, and the vertical axis lift type Electric power can be generated by rotating the windmill at high speed. In addition, when the wind is strong, the vertical axis lift type wind turbine and the vertical axis drag type wind turbine are connected so that torque is transmitted, so the vertical axis lift type is utilized by utilizing the rotational difference between the vertical axis lift type wind turbine and the vertical axis drag type wind turbine. It is possible to generate power while decelerating the windmill and suppressing over-rotation of the vertical axis lift type windmill.

  Therefore, it is possible to improve the startability of the vertical axis lift type windmill in a weak wind and to suppress over-rotation in a strong wind. Therefore, even in a strong wind, power generation can be performed without stopping the vertical axis lift type windmill, and the total power generation efficiency can be improved. Further, it is possible to prevent over-rotation and breakage due to brake failure during strong winds.

  In addition, a first magnetic coupling disk and a second magnetic coupling disk having magnets arranged at the peripheral portion are arranged opposite to each other, and a magnetic axis having a magnet arranged at the outer peripheral portion is disposed between the first magnetic coupling disk and the second magnetic coupling disk. By moving the magnetic axis, control is performed so that torque is transmitted when the magnetic axis is positioned at the peripheral edge of the first magnetic coupling disk and the second magnetic coupling disk, and is not transmitted when positioned at the center. By doing so, it is possible to easily connect or disconnect the vertical axis lift type wind turbine and the vertical axis drag type wind turbine.

  Further, the wind receiving plate and the magnetic force shaft are connected, and the magnetic force axis is opposite through the central portion from the peripheral edge of the first magnetic coupling disk and the second magnetic coupling disk according to the wind pressure applied to the wind receiving plate. By moving toward the peripheral edge on the side, the vertical axis lift type wind turbine and the vertical axis drag type wind turbine can be connected or disconnected using wind power, and can be operated without power supply. it can.

  In addition, the rotational speed of the vertical axis lift type wind turbine is measured, and based on the rotational speed, it is determined whether the wind is weak, medium or strong, and torque is transmitted to the first and second rotating shafts. Thus, the vertical axis lift type wind turbine and the vertical axis drag type wind turbine can be easily connected or disconnected if they are connected in such a manner or separated so that torque is not transmitted.

It is a figure showing the whole structure of the compound windmill which concerns on the 1st Embodiment of this invention. It is a figure showing the cross-sectional structure of the vertical axis lift type windmill shown in FIG. It is another figure showing the cross-sectional structure of the vertical axis drag type wind turbine shown in FIG. It is a figure showing the external appearance structure of the connection and disconnection part shown in FIG. It is a figure showing the cross-sectional structure of the connection and disconnection part shown in FIG. It is a figure explaining operation | movement of the connection and disconnection part shown in FIG. It is a characteristic view showing the relationship between the wind speed and rotation speed of a vertical axis lift type windmill and a vertical axis drag type windmill. It is a figure showing the structure of the compound windmill which concerns on the 2nd Embodiment of this invention.

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

(First embodiment)
FIG. 1 shows an overall configuration of a composite wind turbine 1 according to a first embodiment of the present invention. FIG. 2 shows a cross-sectional configuration of the vertical axis lift type wind turbine 10 shown in FIG. FIG. 3 illustrates a cross-sectional configuration of the vertical axis drag type wind turbine 20 illustrated in FIG. 1. 4 shows the external configuration of the connecting / disconnecting portion 30 shown in FIG. 1, FIG. 5 shows its cross-sectional configuration, and FIG. 6 explains its operation. FIG. 7 shows the relationship between the wind speed and the rotational speed of the vertical axis lift type windmill 10 and the vertical axis drag type windmill 20.

  The composite wind turbine 1 of the present invention is configured so that torque is transmitted between the vertical axis lift type wind turbine 10, the vertical axis drag type wind turbine 20, and the vertical axis lift type wind turbine 10 and the vertical axis drag type wind turbine 20. A connecting / disconnecting section 30 is provided for connecting or disconnecting them so that torque is not transmitted.

  The vertical axis lift type windmill 10 has a first rotating shaft portion 11 disposed perpendicular to the wind direction, and uses a rotational force component of lift acting on the blade 12 as a main rotational force. Examples of the vertical axis lift type wind turbine 10 include a Darrieus type wind turbine and a vertical blade type wind turbine, and any of them can be used. In the present embodiment, a vertical blade type windmill will be described as an example. For example, a plurality of blades 12 are provided in parallel with the first rotation shaft portion 11 with a gap in the circumferential direction having the same radius in a plane orthogonal to the first rotation shaft portion 11. The cross-sectional shape in the plane orthogonal to the first rotating shaft portion 11 of the blade 12 is, for example, a streamlined airfoil. The blade 12 is disposed, for example, at an end portion of a support track 13 that extends radially from the first rotation shaft portion 11, and the rotation of the blade 12 by wind force is transferred to the first rotation shaft portion 11 via the support track 13. It is to be transmitted.

  The vertical axis drag type wind turbine 20 has a second rotating shaft portion 21 arranged perpendicular to the wind direction, and the drag acting on the blade 22 is a main rotating force. Examples of the vertical axis drag type windmill 20 include a Savonius type windmill, an S type windmill, a paddle type windmill, and a crossflow type windmill, and any of them can be used. In the present embodiment, a Savonius type windmill will be described as an example. The blade 22 has, for example, a shape in which a cylinder is cut in a longitudinal half and shifted in the circumferential direction. For example, the blade 22 has a cylindrical length direction parallel to the second rotation shaft portion 21 and is disposed on the second rotation shaft portion 21 via blade support plates 23 disposed at both ends of the cylinder length direction. The rotation of the blade 22 by wind force is transmitted to the second rotating shaft portion 21 via the blade support plate 23.

  The relationship between the wind speed and the rotational speed of the vertical axis lift type windmill 10 and the vertical axis drag type windmill 20 is, for example, as shown in FIG. The vertical axis drag type windmill 20 rotates even in a weak wind and has excellent startability, but the vertical axis lift type windmill 10 does not rotate in a weak wind and is poor in startability. However, when the wind speed increases, the vertical axis lift type windmill 10 has a higher rotational speed than the vertical axis drag type windmill 20 at a certain point, and can rotate at a high speed.

  For example, the connecting / disconnecting portion 30 is configured such that the first rotary shaft portion 11 of the vertical axis lift type wind turbine 10 and the second rotary shaft portion 21 of the vertical axis drag type wind turbine 20 are coaxially arranged, and the vertical axis lift type. It is arranged between the windmill 10 and the vertical axis drag type windmill 20. For example, with respect to the vertical axis lift type windmill 10 and the vertical axis drag type windmill 20, the connecting / disconnecting part 30 is a weak wind in which the rotation speed of the vertical axis lift type windmill 10 is smaller than the rotation speed of the vertical axis drag type windmill 20. They are connected so that torque is sometimes transmitted, so that torque is not transmitted during medium winds when the rotational speed of the vertical axis lift type windmill 10 is smaller than the overspeed and larger than the rotational speed of the vertical axis drag type windmill 20. They are separated from each other and connected so that torque is transmitted when the wind speed of the vertical axis lift type wind turbine 10 is high when the wind speed is higher than the excessive speed.

  The connecting / disconnecting portion 30 is preferably configured using, for example, magnetic coupling. For example, the connecting / disconnecting part 30 includes a first magnetic coupling disk 31 disposed on the first rotating shaft part 11, a second magnetic coupling disk 32 disposed on the second rotating shaft part 21, It is preferable to have a magnetic axis 33 disposed between the first magnetic coupling disk 31 and the second magnetic coupling disk 32 and a moving means 34 for moving the magnetic axis 33.

  The first magnetic coupling disk 31 has, for example, a disk shape, and is disposed perpendicular to the first rotating shaft portion 11 at the center. Similarly, the second magnetic coupling disk 32 has a disk shape, for example, and is disposed perpendicular to the second rotating shaft portion 21 at the center. The first magnetic coupling disk 31 and the second magnetic coupling disk 32 are, for example, arranged so as to face each other, and magnets 31A, 32A are arranged on the peripheral portions on the opposed surfaces, respectively. ing. For example, the magnets 31 </ b> A and 32 </ b> A are alternately arranged with S and N poles in an annular shape along the periphery of the first magnetic coupling disk 31 or the second magnetic coupling disk 32. For example, a magnet is not disposed at the center of the opposing surfaces of the first magnetic coupling disk 31 and the second magnetic coupling disk 32.

  For example, the magnetic axis 33 is used to transmit torque by interlocking the first magnetic coupling disk 31 and the second magnetic coupling disk 32. For example, the magnetic force shaft 33 is disposed to be rotatable about a direction orthogonal to the first rotation shaft portion 11 and the second rotation shaft portion 21 as a rotation shaft, and a magnet 33A is disposed on the outer peripheral portion. In the magnet 33A, for example, S poles and N poles are alternately arranged in the rotation direction.

  The moving means 34, for example, moves the magnetic force shaft 33 in the direction of its rotational axis, and transmits torque when the magnetic force shaft 33 is positioned at the peripheral edge portions of the first magnetic coupling disk 31 and the second magnetic coupling disk 32. In this case, control is performed so that torque is not transmitted when located in the central portion. The moving means 34 preferably includes, for example, a wind receiving plate 34A that receives wind, and a support member 34B that connects the wind receiving plate 34A and the magnetic axis 33. The wind receiving plate 34A is formed of, for example, a plate that is curved in a concave shape on the wind receiving side, and is disposed with the concave side facing the support member 34B.

  In the support member 34B, for example, according to the wind pressure applied to the wind receiving plate 34A, the magnetic force axis 33 passes through the central portion from one peripheral edge of the first magnetic coupling disk 31 and the second magnetic coupling disk 32 and is on the opposite side. It supports so that it may move toward a peripheral part. The support member 34B is disposed so as to be movable with respect to the cover body 35 that covers the first magnetic coupling disk and the second magnetic coupling disk 32, for example. The cover body 35 is, for example, a hollow circular tube whose both ends are closed, and is preferably disposed so as to be rotatable with respect to the first rotating shaft portion 11 and the second rotating shaft portion 21. Further, the support member 34B includes, for example, a first support portion 34B1 disposed on the magnetic force shaft 33 and a second support portion 34B2 disposed on the wind receiving plate 34A. For example, the first support portion 34B1 is rotatably arranged with respect to the second support portion 34B2 with a direction orthogonal to the first rotation shaft portion 11 and the second rotation shaft portion 21 as a rotation axis.

  The moving means 34 also urges, for example, the magnetic force axis 33 to be urged in the direction in which the magnetic force axis 33 moves from the peripheral edge on the opposite side of the first magnetic coupling disk 31 and the second magnetic coupling disk 32 toward one peripheral edge. It is preferable to have the member 34C. The urging member 34C has, for example, a magnetic force shaft 33 that is moved from one peripheral part of the first magnetic coupling disk 31 and the second magnetic coupling disk 32 toward the opposite peripheral part according to the wind force. When it weakens, it is intended to move in the opposite direction according to the wind power. The urging member 34 </ b> C is preferably constituted by, for example, a coiled helical spring. For example, one end of the urging member 34C is brought into contact with the magnetic force shaft 33, and the other end is brought into contact with the inner peripheral surface of the cover body 35 on the side where the support member 34B is disposed. When 33 moves to the support member 34B side, it is preferable that the urging member 34C contracts to urge the magnetic shaft 33 to the opposite side.

  The moving means 34 preferably further includes a wind direction control blade 34D that adjusts the position of the wind receiving plate 34A in accordance with the direction of the wind. The wind direction control blade 34D has, for example, a flat plate shape, is disposed with respect to the cover body 35, and extends from the cover body 35 in the direction in which the wind receiving plate 34A is disposed. For example, the wind receiving plate 34 </ b> A is arranged on the cover body 35, so that the wind receiving plate 34 </ b> A can rotate with respect to the first rotating shaft portion 11 and the second rotating shaft portion 21 according to the direction of the wind.

  In the compound windmill 1, when the rotational speed of the vertical axis lift type windmill 10 is weaker than the rotational speed of the vertical axis drag type windmill 20, for example, as shown in FIG. The first magnetic coupling disk 31 and the second magnetic coupling disk 32 are located at one peripheral edge. Thereby, the vertical axis lift type windmill 10 and the vertical axis drag type windmill 20 are connected so that torque is transmitted, and when the vertical axis drag type windmill 20 rotates, the second magnetic coupling disk 32 rotates, The magnetic shaft 33 rotates in conjunction with the first magnetic coupling disk 31 in conjunction with the rotation, and the vertical axis lift wind turbine 10 rotates. Therefore, the vertical axis lift type windmill 10 can be rotated using the startability of the vertical axis drag type windmill 20.

  Further, when the wind speed of the vertical axis lift type windmill 10 is smaller than the excessive speed and is larger than the speed of the vertical axis drag type windmill 20, for example, as shown in FIG. The magnetic axis 33 moves to the center of the first magnetic coupling disk 31 and the second magnetic coupling disk 32 according to the wind pressure applied to 34A. Thereby, the vertical axis lift type windmill 10 and the vertical axis drag type windmill 20 are separated so that torque is not transmitted, and rotate independently of each other. Therefore, the vertical axis lift type windmill 10 is not hindered by the vertical axis drag type windmill 20 and can rotate at high speed.

  Furthermore, when the rotational speed of the vertical axis lift type windmill 10 is a strong wind that is equal to or higher than the excessive rotational speed, for example, as shown in FIG. The magnetic coupling disk 31 and the second magnetic coupling disk 32 move to the opposite peripheral edge. Thus, the vertical axis lift type windmill 10 and the vertical axis drag type windmill 20 are connected so that torque is transmitted, and the first magnetic coupling disk 31 and the second magnetic coupling disk 32 are connected to the magnetic axis 33. To be linked. Therefore, the vertical axis lift type windmill 10 is decelerated due to the rotational difference from the vertical axis drag type windmill 20, and over-rotation is suppressed.

  When the wind speed is weakened, the magnetic shaft 33 is moved to the opposite side of the first magnetic coupling disk 31 and the second magnetic coupling disk 32 by the urging member 34C according to the wind pressure applied to the wind receiving plate 34A, for example. It moves in the direction of moving from the peripheral part toward one peripheral part. Thereby, according to the wind speed, the magnetic axis 33 is located at one peripheral part, the central part, or the peripheral part on the opposite side of the first magnetic coupling disk 31 and the second magnetic coupling disk 32, and the vertical axis lift type The windmill 10 and the vertical axis drag type windmill 20 are connected so that torque is transmitted or separated so that torque is not transmitted.

  This composite windmill 1 can be used for power generation by attaching a generator.

  As described above, according to the present embodiment, when the wind is weak, the vertical axis lift type windmill 10 and the vertical axis drag type windmill 20 are connected so that torque is transmitted. The vertical axis lift type windmill 10 can be rotated by utilizing the above. Further, during the middle wind, the vertical axis lift type windmill 10 and the vertical axis drag type windmill 20 are separated so as not to transmit torque, so that the vertical axis drag type windmill 20 does not hinder the rotation of the vertical axis lift type windmill 10, Electric power can be generated by rotating the vertical axis lift type wind turbine 10 at a high speed. Further, during strong winds, the vertical axis lift type windmill 10 and the vertical axis drag type windmill 20 are connected so as to transmit torque, so that the rotational difference between the vertical axis lift type windmill 10 and the vertical axis drag type windmill 20 is utilized. The vertical axis lift type windmill 10 can be decelerated and power generation can be performed while suppressing the over rotation of the vertical axis lift type windmill 10.

  Therefore, it is possible to improve the startability of the vertical axis lift type wind turbine 10 in a weak wind and to suppress over-rotation in a strong wind. Therefore, power generation can be performed without stopping the vertical axis lift type wind turbine 10 even in a strong wind, and the total power generation efficiency can be improved. Further, it is possible to prevent over-rotation and breakage due to brake failure during strong winds.

  Further, the first magnetic coupling disk 31 and the second magnetic coupling disk 32 having the magnets 31A and 32A disposed on the peripheral portion are disposed to face each other, and the magnetic shaft 33 having the magnet 33A disposed on the outer peripheral portion therebetween. Is arranged so as to be rotatable, and the magnetic force shaft 33 is moved. When the magnetic force shaft 33 is located at the peripheral edge of the first magnetic coupling disk 31 and the second magnetic coupling disk 32, torque is transmitted to the central portion. If control is performed so that torque is not transmitted when positioned, the vertical axis lift type windmill 10 and the vertical axis drag type windmill 20 can be easily connected or disconnected.

  Further, the wind receiving plate 34A and the magnetic shaft 33 are connected, and the magnetic shaft 33 is moved from one peripheral edge of the first magnetic coupling disk 31 and the second magnetic coupling disk 32 according to the wind pressure applied to the wind receiving plate 34A. By moving toward the opposite peripheral edge through the center, the vertical axis lift type windmill 10 and the vertical axis drag type windmill 20 can be connected to or disconnected from each other using wind power. It can be operated without supply.

(Second Embodiment)
FIG. 8 shows the configuration of the composite wind turbine 2 according to the second embodiment of the present invention. This composite windmill 2 has the same configuration as the composite windmill 1 according to the first embodiment except that the specific configuration of the connecting / disconnecting portion 40 is different.

  The connecting / disconnecting portion 40 is, for example, similar to the first embodiment, for example, the first rotating shaft portion 11 of the vertical axis lift type wind turbine 10 and the second rotating shaft portion 21 of the vertical axis drag type wind turbine 20. Are arranged on the same axis, and are arranged between the vertical axis lift type windmill 10 and the vertical axis drag type windmill 20. Further, as in the first embodiment, for example, the connecting / disconnecting unit 40 is configured so that torque is transmitted to the vertical axis lift type wind turbine 10 and the vertical axis drag type wind turbine 20 so that torque is transmitted in a low wind. They are connected, so that they are disconnected so that torque is not transmitted during medium winds, and are connected so that torque is transmitted during strong winds.

  Specifically, the connecting / disconnecting part 40 includes, for example, a first connecting part 41 provided on the first rotating shaft part 11, a second connecting part 42 provided on the second rotating shaft part 21, A rotational speed measuring means 43 for measuring the rotational speed of the vertical axis lift type wind turbine 10, and determining a light wind, a medium wind, and a strong wind based on the rotational speed measured by the rotational speed measuring means 43, It has the control means 44 which moves the 2nd connection part 42 relatively.

  The 1st connection part 41 and the 2nd connection part 42 are arrange | positioned so that it mutually opposes and can approach relatively relatively, for example. For example, the first connecting portion 41 and the second connecting portion 42 may be configured such that a gear is formed on the opposing surface and the gears are connected close to each other and connected to each other. It may be configured to have a coefficient and be connected by friction when abutted.

  The rotation speed measuring means 43 may be any type, and may be a contact type or a non-contact type. The control unit 44 brings the first connecting portion 41 and the second connecting portion 42 into contact with each other in accordance with the rotational speed measured by the rotational speed measuring means 43, so that the vertical lift wind turbine 10 and the vertical drag type are brought into contact with each other. The wind turbine 20 is connected so that torque is transmitted, or the first connecting portion 41 and the second connecting portion 42 are separated from each other, whereby the vertical lift type wind turbine 10 and the vertical drag type wind turbine 20 are connected. , So that the torque is not transmitted.

  Even if comprised in this way, similarly to 1st Embodiment, the vertical axis lift type windmill 10 and the vertical axis drag type windmill 20 can be connected or disconnected easily.

  The present invention has been described with reference to the embodiment. However, the present invention is not limited to the above embodiment, and various modifications can be made. For example, in the above-described embodiment, each component has been specifically described. However, not all the components may be provided, and other components may be provided.

  DESCRIPTION OF SYMBOLS 1, 2 ... Compound windmill, 10 ... Vertical axis lift type windmill, 11 ... 1st rotating shaft part, 12 ... Blade, 13 ... Supporting track, 20 ... Vertical axis drag type windmill, 21 ... 2nd rotating shaft part, 22 ... Blade, 23 ... Blade support plate, 30 ... Connection / separation part, 31 ... First magnetic coupling disk, 31A ... Magnet, 32 ... Second magnetic coupling disk, 32A ... Magnet, 33 ... Magnetic axis, 33A ... Magnet , 34 ... moving means, 34A ... wind receiving plate, 34B ... support member, 34B1 ... first support portion, 34B2 ... second support portion, 34C ... urging member, 34D ... wind direction control blade, 35 ... cover body, 40 ... Connection / disengagement part, 41 ... first connection part, 42 ... second connection part, 43 ... rotation speed measuring means, 44 ... control means

Claims (5)

A vertical axis lift type windmill,
A vertical axis drag type windmill,
About these vertical axis lift type wind turbines and vertical axis drag type wind turbines, the torque is transmitted so that the torque is transmitted in a weak wind where the rotation speed of the vertical axis lift type wind turbine is smaller than the rotation speed of the vertical axis drag type wind turbine. And the vertical axis lift type wind turbine is separated so that torque is not transmitted during medium winds in which the rotational speed of the vertical axis lift type wind turbine is smaller than the over revolution number and larger than the rotational speed of the vertical axis drag type wind turbine. A combined wind turbine comprising: a connecting / disconnecting portion for connecting torques so that torque is transmitted when the wind speed is higher than the excessive speed. The connecting / disconnecting part is
A first magnetic coupling disk disposed on a first rotating shaft portion of the vertical axis lift type wind turbine and having a magnet disposed on a peripheral portion;
A second magnetic coupling disk disposed on a second rotating shaft portion of the vertical axis drag type wind turbine so as to face the first magnetic coupling disk and having a magnet disposed on a peripheral edge;
Between the first magnetic coupling disk and the second magnetic coupling disk, an outer peripheral portion is disposed so as to be rotatable about a direction orthogonal to the first rotating shaft portion and the second rotating shaft portion. A magnetic axis on which a magnet is disposed,
When the magnetic force axis is moved in the direction of the rotation axis, the torque is transmitted when the magnetic force axis is located at the peripheral edge of the first magnetic coupling disk and the second magnetic coupling disk, and when the magnetic force axis is located at the center. The combined wind turbine according to claim 1, further comprising a moving unit that controls the torque not to be transmitted. The moving means is
A wind receiving plate for receiving the wind;
The wind receiving plate and the magnetic force axis are connected, and the magnetic force axis is moved from one peripheral part to the center part of the first magnetic coupling disk and the second magnetic coupling disk according to the wind pressure applied to the wind receiving plate. A support member that supports the movement of the peripheral edge portion on the opposite side through the support member;
An urging member that urges the magnetic axis in a direction of moving from the peripheral edge on the opposite side of the first magnetic coupling disk and the second magnetic coupling disk toward one peripheral edge; The composite windmill according to claim 2. The moving means has a wind direction control blade for adjusting the position of the wind receiving plate according to the direction of the wind,
The composite wind turbine according to claim 3, wherein the wind receiving plate is rotatable with respect to the first rotating shaft portion and the second rotating shaft portion according to a wind direction. The connecting / disconnecting part is
Rotational speed measuring means for measuring the rotational speed of the vertical axis lift type wind turbine;
Based on the rotational speed measured by the rotational speed measuring means, it is determined whether the wind is weak, medium, or strong, and the vertical lift wind turbine and the vertical drag wind turbine are connected so that torque is transmitted. The composite wind turbine according to claim 1, further comprising: a control unit that disconnects the torque so that torque is not transmitted.

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