JP2001173549A - Wind force converter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wind force converter capable of causing motion by wind in a narrow operation range, reducing the installation space by a simple constitution, constituting each member of a simple structure by reducing centrifugal force of wind, and reducing wind noise. SOLUTION: This wind force converter is provided with a base 2 and a blade member 3 mounted thereon, and adapted to take as power the motion when the blade surfaces S1, S2 of the blade member are subjected to wind with a gradient to the wind direction to be turned. The blade member 3 is formed by the blade main body 4 and the base part 5 for supporting the body 4, the base part 5 is journaled to the base 2 to freely reciprocate and turn in a first angle range A1 through a first journal part C1 disposed substantially horizontally in the shaft center direction, and the blade main body 4 is journaled to the base part 5 to freely reciprocate and turn in a second angle range through a second journal part C2. This converter is provided with blade turning means 6, 13 for turning the blade main body through the second journal part to place the other blade surface opposite to wind when one blade surface of the blade main body is subjected to wind and the blade member is turned to the terminal end of the first angle range through the first journal part.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wind power conversion device for obtaining power using wind power.

[0002]

2. Description of the Related Art Japanese Unexamined Patent Publication No. Hei 7-247950 discloses a wind rotating device applied to a small wind power converting device. The wind rotator described in this publication is a wind rotator including at least a pair of wind receivers arranged at symmetrical angular intervals and a rotating shaft that pivotally supports a center portion of the wind receivers and rotates. While one of the wind receivers is receiving a normal wind, a shielding means for shielding the other of the pair of wind receivers receiving the reverse wind from the reverse wind is installed along the rotation path of the pair of wind receivers. It is a wind rotator.

[0003]

However, in the above-mentioned conventional wind power converter, the wind receiver performs a rotary motion about its central axis, so that the rotation range of the wind receiver is increased, and the installation space is increased. As a result, the strength of each member must be increased, the size and weight of the members become large, and the wind noise of the wind receiver becomes large. Furthermore, since the wind receiver on the opposite wind side is shielded, effective use of wind power cannot be achieved.

The present invention has been made in consideration of the above-mentioned prior art, and enables a movement by wind in a narrow operating range, thereby reducing the installation space with a compact structure, and reducing the centrifugal force due to wind. Each component can be configured with
It is an object of the present invention to provide a wind power converter capable of reducing wind noise.

[0005]

In order to achieve the above-mentioned object, according to the present invention, there is provided a base and a wing member attached thereto, and the wind is blown in a state where the wing surface of the wing member is inclined with respect to the wind direction. A wind power converter configured to take out a motion when rotating by receiving power as power, wherein the wing member includes a wing body and a base supporting the wing body, and the base has a substantially horizontal axis direction. The wing body is reciprocally rotatable within a first angle range through a first pivot portion disposed on the base, and the wing body reciprocates within a second angle range through a second pivot portion. When the wing member is rotatably supported by the base and one of the wing surfaces of the wing body receives wind, and the wing member rotates to the end of the first angular range via the first shaft support,
There is provided a wind power conversion device provided with a wing surface rotating means for rotating the wing main body via the second shaft support portion to make the other wing surface side face wind.

According to this configuration, the wing body of the wing member receives the wind, rotates around the first pivot with the base thereof, and moves the first wing body.
When the wing body rotates to the end of the angle range, the wing body rotates about the second pivot portion, the surface receiving the wind reverses, and rotates in the opposite direction of the first angle range. As a result, the wing member becomes the first
Reciprocating automatically within the angle range of.

In this case, even if the wing member for receiving the wind power is long, the wing member only reciprocates within the first angle range via the first pivot, so that the moving range of the wing member is limited. Can be relatively small. Therefore, even if a long wing member is used, the installation space of the apparatus can be made compact, and the wind receiving area of the wing member can be increased in a limited space to effectively use the wind power. In addition, the centrifugal force acting on the wing member can be reduced, and it is not necessary to increase the strength of the first shaft support portion, and the apparatus can be configured with a simple structure. In addition, the wind noise of the wing member is reduced, and noise to the surrounding environment is reduced.

In a preferred configuration example, when one of the wing surfaces of the wing body receives wind and the wing member rotates to the end of the first angular range via the first pivot, the wing member The main body is provided with a main regulating means for regulating the rotation of the wing member by contacting the wing member, and the center of gravity of the wing main body is deviated with respect to the axis of the second shaft support portion. When the rotation is restricted by the main restricting means to the end of the angle range and the rotation is restricted by the main restricting means, the wing main body moves the second pivot support by the action of the moment of inertia of the wing main body around the axis of the second pivot support. And the wing surface of the wing body facing the wind is switched from one wing surface side to the other wing surface side.

According to this structure, the wing member rotating around the first pivot portion comes into contact with the main regulating means at its end point and stops its rotation. When this rotation stops, the action of the moment of inertia on the center of gravity of the wing body causes the wing body to rotate around the second pivot that is deviated from this center of gravity, and the direction facing the wind is reversed so that the wing surface becomes in contact with the wind. The opposite surface is the surface facing the wind direction. Thereby, the wing member can be automatically reversed and the wing member can be driven in the opposite direction without using a special actuator, and wing surface rotating means having a simple structure can be configured.

In a further preferred configuration example, when one of the wing surfaces of the wing body receives wind and the wing body rotates to the end of the second angle range via the second pivot,
A sub-regulator is provided on the base for abutting the wing body to restrict rotation of the wing body, and the aerodynamic center of the wing body is located forward of the axis of the second shaft support portion toward the windward side. It is characterized by having such a configuration.

[0011] According to this configuration, the wing main body is moved backward from the aerodynamic center by the wind acting on the aerodynamic center of the wing main body.
When rotating around the pivot, the wing body abuts against the sub-restriction means and stops its rotation, and the rotation around the second pivot is stopped as it is, and the rotation around the first pivot is maintained in this state. Starts. Thus, the wing surface of the wing body can be held at a predetermined inclination angle with respect to the wind direction with a simple structure without using a special actuator.

In a further preferred configuration example, the wing body includes a shaft supported by the base via the second shaft support, and a rotatably supported shaft supported by the shaft via a third shaft support. And a blade angle adjusting means for adjusting a rotation angle position of the blade portion with respect to the shaft body in accordance with the wind speed, wherein the blade portion is inclined backward with respect to the wind direction as the wind speed increases. It is characterized by having been constituted.

According to this configuration, while the wing body stops at a position at a fixed angle around the second pivot and receives wind, and rotates around the first pivot, the wing is perpendicular to the second pivot, for example. , And the center of aerodynamic force moves rearward as the wind speed increases. When this aerodynamic center moves rearward from the axial position of the second shaft support, the wind force, which previously held the wing body in contact with the sub-restricting means by wind pressure on the wing surface and held at a constant angular position, is reduced by the aerodynamic center. Since it is moved backward, it is escaped, and the state of contact with the sub-regulating means is not maintained. This allows the wind to escape under the strong wind to stop the reciprocating operation around the first pivot portion.

In a further preferred configuration example, the wing member includes a pair of wing members of a first wing member and a second wing member, and both wing members are provided on the axis of the first shaft support portion. It is characterized in that it is connected via a connecting member so as to make a substantially symmetrical movement as viewed from the direction along it.

According to this configuration, the first wing member and the second wing member
Since the wing members make a substantially symmetrical motion, the inertial force of the wing members is canceled out, so that it is not necessary to increase the mounting strength of the base to the base. Therefore, the structure for attaching the base to the base can be simplified.

In a further preferred configuration example, the base is pivotally supported on the base via a fourth pivot portion arranged so that the axial center direction is substantially vertical, and the wing surface of the wing main body with respect to the vertical direction. It is characterized by being inclined.

According to this structure, the base supporting the wing member is rotatable around the vertical fourth pivot, so that the wing member can face the wind from all directions, and the wing member can be used without using any special member. The wing member can be automatically opposed to the wind direction by using the member itself.

In a further preferred embodiment, one end of each of the pair of main links is rotatably connected to each of the bases, and the other end of each main link is rotatably connected to one end of a common sub-link. The auxiliary link is configured such that its axis is movable along the same axis as the axis of the fourth shaft support,
The power is taken out from the auxiliary link.

According to this configuration, the pair of wing members are connected to the common sub-link via the pair of main links rotatably connected to each other, and the pair of wing members are symmetrically rotated. Can be reciprocated vertically. Thus, power can be taken out via the sub-link with a simple structure.

In a further preferred configuration example, the wing member is provided with a balancer for balancing moments when the wing member rotates around the axis of the first shaft support.

According to this structure, the balancer generates a moment opposing the turning operation of the wing member, whereby the turning operation of the wing member around the first pivot portion is performed smoothly, and the wing member is operated with a light force. You can make effective use of wind power.

[0022]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an overall explanatory view of a wind power converter according to an embodiment of the present invention, and FIG. 2 is a perspective view of a main part thereof.

The wind power converter 1 according to this embodiment is
It comprises a pair of wing members 3 mounted on a base 2. The pair of wing members are of the same configuration and are arranged symmetrically, and the following description will be made only for one wing member 3.
The wing member 3 includes a wing main body 4 and a base 5 at the root thereof.
The base 5 is rotatable around a first axis C1 disposed horizontally with respect to the base 2. That is, the base 5 is pivotally connected to the base 2 so as to be reciprocally rotatable within the first angle range A1 via a first shaft support portion including a bearing (not shown) holding the first shaft C1. Supported. A main stopper 15 for determining the first angle range A1 of the wing member 3 is provided on the base 2. Thus, when the wing member rotates to the end of the first angle range A1 via the first pivot, the wing member 3 contacts the main stopper 15 and the wing member 3 rotates further. Regulate.

The balancer 11 is provided on the base 5 at a position extending to the opposite side of the first axis C1. Thereby, the first
The moment when the wing member 3 rotates about the axis C1 is balanced, and a smooth operation can be obtained with a small force.

In the drawing, a first shaft C1 indicates a shaft center of a first shaft supporting portion. The first shaft supporting portion includes a shaft member constituting the shaft center or a member such as a bearing for holding or supporting the shaft member. Say. The same applies to a second axis C2 to a fourth axis C4 described later.

The wing body 4 constituting the wing member 3 has a second axis C
2 so as to be rotatable around the second shaft supporting portion, the shaft is supported by the base portion 5 through the second shaft supporting portion, and as shown in FIG. Reciprocating rotation is possible. The wing body 4 includes a long blade-like wing portion 7 and a shaft 6 at the root portion thereof. The shaft body 6 is mounted so as to be rotatable around the second axis C2 with respect to the base 5, whereby the wing main body 4 is moved relative to the base 5 with respect to the second axis C2 as described above.
It can be rotated around. A weight 13 is attached to the shaft 6, and the wind receiving surface of the wing is reversed by inertial force as described later. Also, two sub-stoppers 14 that define the second angle range A2 (FIG. 3) are provided at two locations (only one location is shown in FIG. 2).

The wing 7 constituting the wing main body 4 has a third axis C3
It is rotatably mounted on the shaft body 6 via the third shaft support so as to be rotatable around. The third axis C3 is disposed in a horizontal direction that is substantially perpendicular to the second axis C2, and allows the wing 7 to rotate in the front-rear direction with respect to the wind direction so that the angle of the wing can be adjusted. A wing angle adjusting means 8 is pivotally connected between the wing portion 7 and the shaft body 6 to connect them. The wing angle adjusting means 8 includes a spring (not shown) and a damping damper. When the wing 7 receives a strong wind pressure, the spring acts in response thereto and the wing 7 is moved backward to a position corresponding to the spring force. Let the wind escape by tilting. The damping damper suppresses vibration due to flapping of the wings under strong winds, and makes stable movement. In addition, instead of the structure of the spring and the damping damper, a hydraulic cylinder may be used as such a blade angle adjusting means 8, and the blade may be forcibly driven to expand and contract by a hydraulic pump or a solenoid valve. Alternatively, a ball screw mechanism connected to an electric motor may be used, and the expansion and contraction operation may be performed by rotational driving by the electric motor.

As shown in FIG. 2, one end of a main link 16 is pivotally connected to each base 5 of the pair of wing members 3.
The other ends of both main links 16 are pivotally connected to the upper end of a common auxiliary link 17. This sub-link 17 is the fourth link in the vertical direction.
Along the axis C4, a first angular range A1 of both wing members 3
Reciprocating up and down with a symmetrical reciprocating turning motion in the inside. This reciprocating operation is changed to a rotating operation, for example, the generator 1
0 can be driven to obtain power.

FIG. 3 is a diagram illustrating the operation of the above-mentioned wind power converter. The solid line in the figure shows a state where the wing surface S2 side of the wing body 4 (wing portion 7) is obliquely opposed to the wind direction and receives the wind.
In this state, the shaft body 6 (FIG. 2) of the wing body 4 is
The rotation of the wing body 4 is stopped by contact with the wing body 4. At this time, the center of aerodynamic force with respect to the wing body 4 is located ahead of the second axis C2, which is the center of rotation of the wing body 4, with respect to the wind direction. . As a result, the wing body 4 is maintained in a state of receiving the wind. Further, since the weight 13 is mounted behind the wing body 4, the center of gravity G of the wing body 4 is located behind the second axis C2.

In this state, the wing body 4 is rotated in the direction of arrow J as a whole by the wind force together with the sub-stopper 14 in the wing member 3 (FIGS. 1 and 2). This rotation in the direction of arrow J is an operation in which the two wing members 3 move in the opening direction around the first axis C1 (FIGS. 1 and 2) within the first angle range A1 (FIG. 1). This turning operation is stopped when the base 5 contacts the main stopper 15 (FIG. 2) at the end point of the first angle range A1.

Even if the rotation in the direction of arrow J is stopped,
Due to the inertial force on the center of gravity G including the weight 13, a force for rotating the weight 13 further in the same direction is given. As a result, the wing member 4 further rotates around the second axis C2, rotates in the direction of arrow K within the second angle range A2, and comes into contact with the sub-stopper 14 on the opposite side (in the two-dot chain line in the drawing). Status). As a result, the wind receiving surface of the wing body 4 is reversed, the wing surface S1 receives the wind, and returns to the direction opposite to J by the wind force to move the pair of wing bodies 4 (FIG. 1) to the first angle range A1. In the direction of closing each other to the end. At this end, weight 1
Due to the inertial force with respect to the center of gravity G including 3, the wing surface receiving the wind reverses and rotates again in the J direction. In this manner, the wing member 3 including the wing body 4 automatically performs the reciprocating rotation operation within the first angle range A1 by the wind force and the inertial force.

FIGS. 4 and 5 show an application example of the wind power converter according to the present invention. This example is applied as a hull propulsion device. As shown in FIG. 5, the wind power conversion device 1 is attached to a bow of a boat 21 having a balance outrigger 22. As described above, the sub link 17 reciprocally driven by the wing member 3 of the wind power converter 1 is connected to the hull 18.
And an elastic body 19 made of rubber or the like is attached to the distal end thereof, and the fin 20 is pivotally attached. When the sub-link 17 reciprocates as indicated by the arrow D, the fin 20 reciprocates and pivots as indicated by the arrow E within a range in which the fin 20 abuts on the elastic body 19, and a propulsive force in the direction of the arrow F is obtained.

FIG. 6 shows another application example of the present invention. In this example, the wind power converter 1 is mounted on the roof of a building and used as a power generation means. The generated power is charged or supplied from the distributor 23 to various parts of the room or to the outside.

[0034]

As described above, according to the present invention, a wing member having a simple structure can be used to automatically reciprocate the wing member by the wind force and the inertia force of the weight. In this case, even if the wing member for receiving the wind force is long, the wing member only reciprocates within the first angle range via the first pivot, so that the moving range of the wing member is relatively small. it can. Therefore, even if a long wing member is used, the installation space of the apparatus can be made compact, and the wind receiving area of the wing member can be increased in a limited space to effectively use the wind power. In addition, the centrifugal force acting on the wing member can be reduced, and it is not necessary to increase the strength of the first shaft support portion, and the apparatus can be configured with a simple structure. In addition, the wind noise of the wing member is reduced, and noise to the surrounding environment can be reduced.

[Brief description of the drawings]

FIG. 1 is a configuration explanatory diagram of a wind turbine according to an embodiment of the present invention.

FIG. 2 is a perspective view of a main part of the wind power converter of FIG.

FIG. 3 is a diagram illustrating the operation of the wind power converter of FIG.

FIG. 4 is an explanatory diagram of an application example of the present invention.

FIG. 5 is a perspective view of an application example of the present invention.

FIG. 6 is a perspective view of another application example of the present invention.

[Explanation of symbols]

1: Wind converter, 2: Base, 3: Wing member, 4: Wing body, 5: Base, 6: Shaft, 7: Wing, 8: Wing angle adjusting means, 9: Base, 10: Generator , 11: Balancer, 13:
Weight, 14: sub-stopper, 15: main stopper, 16: main link, 17: sub-link, 18: hull, 19: elastic body, 2
0: Fin, 21: Boat, 22: Outrigger, 2
3: Distributor

Claims (8)

[Claims] A wing member mounted on the base member, wherein a wing surface of the wing member is inclined with respect to a wind direction and receives a wind so as to take out a movement when the wing member rotates as power. The wing member comprises a wing body and a base supporting the wing body, and the base has a first angle via a first shaft support arranged substantially horizontally in an axial direction. The wing body is pivotally supported by the base so as to be reciprocally rotatable within a range, and the wing body is pivotally supported by the base so as to be reciprocally rotatable within a second angular range via a second shaft support. When one wing surface side receives wind and the wing member rotates to the end of the first angle range via the first shaft support, the wing body is rotated via the second shaft support. And a wing surface rotating means for facing the other wing surface to wind. 2. When one of the wing surfaces of the wing member receives wind and the wing member turns to the end of the first angle range via the first pivot, the wing member comes into contact with the wing member. A main restricting means for restricting the rotation of the wing member on the base body, the center of gravity of the wing body is deviated with respect to the axis of the second shaft support portion, and the wing member is in the first angular range. When the rotation is restricted to the end by the main restricting means and the rotation is restricted by the main restricting means, the wing main body is rotated through the second pivot support by the action of the inertial moment of the wing main body around the axis of the second pivot support. The wing surface of the wing body which moves and switches from one wing surface side to the other wing surface side facing the wind.
A wind power converter according to claim 1. 3. One of the wing surfaces of the wing body receives wind, and when the wing body rotates to the end of the second angle range via the second pivot, the wing body comes into contact with the wing body. Sub-restriction means for restricting the rotation of the wing main body is provided at the base portion, and the aerodynamic center of the wing main body is located forward of the axis of the second shaft support portion toward the windward side. The wind power converter according to claim 1 or 2, wherein 4. The wing body includes a shaft that is supported by the base via the second shaft support, and a wing that is rotatably supported by the shaft via a third shaft support. And wing angle adjusting means for adjusting a rotation angle position of the wing portion with respect to the shaft body according to a wind speed, wherein the wing portion is inclined backward with respect to a wind direction as the wind speed increases. The wind power converter according to claim 1, 2 or 3, wherein: 5. The wing member comprises a pair of wing members of a first wing member and a second wing member, wherein both wing members are viewed from a direction along the axis with respect to the axis of the first shaft support. The wind converter according to any one of claims 1 to 4, wherein the wind converter is connected via a connecting member so as to perform a substantially symmetrical motion. 6. A wing surface of said wing body is inclined with respect to a vertical direction by supporting said base body to said base via a fourth shaft supporting portion arranged substantially vertically in an axial center direction. The wind power converter according to any one of claims 1 to 5, characterized in that: 7. One end of each of a pair of main links is rotatably connected to each of the bases, and the other end of each main link is rotatably connected to one end of a common sub-link. 7. The auxiliary link according to claim 5, wherein an axis of the auxiliary link is configured to be movable coaxially with an axis of the fourth shaft support, and power is taken out from the auxiliary link. A wind power converter according to claim 1. 8. The apparatus according to claim 1, wherein the wing member includes a balancer for balancing moments when the wing member rotates about the axis of the first shaft support.
The wind power converter according to any one of the above.