JP5240883B1 - Wind tunnel rotating blade - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a new configuration wind tunnel rotary blade of a wind tunnel rotary blade that completely changes the conventional configuration that has reached the critical point in terms of rotation efficiency and power generation efficiency.
SOLUTION: A wind tunnel rotating blade 10 rotating in response to wind in a wind tunnel 20 rotates a portion 16 closer to the axis than a wind receiving surface 14 of a blade 12 to a position orthogonal to the wind blowing through the wind tunnel 20. When moving, the wind blowing through the wind tunnel 20 will hit the wind receiving surface 14 of another blade 12 on the leeward side of the wind tunnel 20 through the ventilation hole 1, thereby The wind receiving surface 14 of the other blade 12 receives a strong wind from the strongest wind and then gradually weakens. Even if it is placed in that position, the rotational force will be stronger.
[Selection] Figure 5

Description

  The present invention relates to a wind tunnel rotating blade installed in a wind tunnel and used for power generation.

  In recent years, while driving a car, using the wind received in the direction of travel, rotating the rotating blades of the power generation turbine, generating electricity with the generator of the turbine, charging the rechargeable battery, such as an electric vehicle or a plug-in hybrid vehicle Proposals have been made for techniques that are used to assist charging and reduce the number of times of charging at home charging facilities and battery charging stations to extend the distance that can be traveled with a single charge.

FIG. 8 is a schematic view schematically showing the mechanism of such a power generation turbine experimentally created by the inventor for auxiliary charging for electric vehicles and plug-in hybrid vehicles. As shown in the figure, a wind tunnel 200 is installed in the traveling direction of the automobile, and turbine blades 100 are provided in the wind tunnel 200. A plurality of blades 121 to 128 for receiving wind blowing through the wind tunnel 200 as the automobile travels are attached to the rotary blade 100. Accordingly, wind blows into the wind tunnel 200 each time the automobile moves forward, and the wind receiving surfaces of these blades 121 to 128 receive wind that tries to blow through the wind tunnel 200 to rotate the rotary blade 100. The rotating force is transmitted to the generator 400 to generate electric power, and the rechargeable battery 410 is charged with the electric power.

Actually, when the wind is about to blow through the wind tunnel 200, a force for driving these components (a force for rotating the rotary blade 100 in the above direction, when transmitting the rotation to the generator 400). 9, and a force that causes the generator 400 to rotate in a predetermined direction), a resistance is generated against the wind that is about to blow through the wind tunnel 200 . As shown in FIG. 4, a part of the air flows backward toward the wind tunnel 200 entering side, and the wind tunnel 200 enters the so-called overflow state in which the wind blows from the front and overflows to the outside of the wind tunnel 200. Pulled by this overflowing wind, the overflow became more intense, causing the problem of not generating electricity with the efficiency expected.

In contrast, in the following Patent Document 1, the present inventor, as shown in FIG. 10 , is located in the wind tunnel 200, along the wind flow from the installation position of the rotary blade 100 to the wind entrance side. A partition wall 210 that divides the flow into two stages is provided to form a main wind tunnel portion where the blades 121 to 128 of the rotary blade 100 receive wind and a separate wind tunnel portion, and any one of the rotary blades 100 When the tip positions of the blades 121 to 128 are located closest to the wind tunnel 200, the rotary blade 100 is installed so that the tip positions of the blades 121 to 128 of the rotary blade 100 are on the extension line of the partition wall 210. The tip of the blades 121 to 128 of the blade 100 protrudes from the wind receiving surface of the blades 121 to 128 of the rotary blade 100 toward the side of the follower tunnel through the extension of the partition wall 210. And, we have proposed a configuration in which an auxiliary blade 121a~128a receiving wind blowing through the driven wind tunnel portion side.

The wind that is about to blow through the main wind tunnel portion formed by the partition wall 210 hits the blades 121 to 128 of the rotary blade 100 and turns the rotary blade 100, thereby generating the generator 400, and generating the rechargeable battery 410. Charge the battery. On the other hand, as described above, an overflow occurs around the main wind tunnel portion so as to go around the entrance side of the partition wall 210 on the outer side of the partition wall 210. However, the wind blown from the front causes the overflow wind to circulate to the side of the secondary wind tunnel on the other side of the partition wall 210. Then, the wind that has flowed into the side of the follower tunnel is caught by the wind receiving surfaces of the auxiliary blades 121a to 128a, and generates a force that further turns the rotary blade 100 in the same direction. Accordingly, the overflow flowing into the side of the follower tunnel is not lost, but on the contrary, it further acts on the rotation of the rotary blade 100. Therefore, the power generation loss of the power generator 400 is eliminated and the power generation efficiency is improved. As a result, the charging rate increases accordingly.
Japanese Patent No. 4607234

  The above configuration can achieve a certain effect, but when the rotational speed reaches a certain value, it does not increase any more, and there is a limit in that respect. It is considered that the overflow flowing into the side of the wind tunnel portion is only a certain amount, and overflow occurs further outside, so that the critical point is reached in that portion.

  The present invention has been devised in view of the above problems, and the present inventor has reconsidered the above configuration from the beginning and provided a new configuration of a wind tunnel rotor blade that does not face such a critical point. To do.

The configuration of the present invention is as follows:
When the blade is installed in a wind tunnel, the blade is rotated by one or more blades projecting into the wind tunnel and receives the wind blowing through the wind tunnel, and the blade has an off-axis portion outward from the rotation axis of the blade. A wind receiving surface that is extended and further shaped to easily receive wind in the axial extension direction is provided, and wind that blows through the wind tunnel is received by the wind receiving surface of the blade and is rotated by the force. In wind tunnel rotor blades that generate electricity using the rotational force of the rotating rotor blades,
When the rotary vane rotates and moves to a position perpendicular to the wind passing through the wind tunnel, the portion closer to the axis than the wind receiving surface blows through the portion near the shaft, Basically, vent holes or slits are drilled only at the position near the shaft of the front blade so that it can be received by the wind receiving surface of another blade on the leeward side of the wind tunnel. Characteristic.

According to the above configuration, the portion of the rotating blade that is rotating in response to the wind in the wind tunnel is rotated to a position perpendicular to the wind blown through the wind tunnel. Then, the wind blown through the wind tunnel hits the wind receiving surface of another blade on the leeward side of the wind tunnel through the ventilation hole or slit. The wind receiving surface of this another blade receives the strongest wind and then gradually weakens, and at that time, it receives a new wind that has passed through the ventilation holes or slits, resulting in a stronger rotational force. Therefore, even if it is placed at that position, the rotational force will become stronger. At this time, since the wind receiving surface of the blade having the ventilation hole or the ventilation slit through which such a wind has been blown will receive the wind that is blown directly through the wind tunnel, at least two blade receiving surfaces, wind tunnel rotary blade, will receive the wind blowing through the wind tunnel, thereby become stronger rotational force.

After that moment, at the position where the other blade was slightly rotated from there, the wind that was passing downward changed the direction and was blown to the leeward side of the wind tunnel, and it was blown through the wind tunnel as it was Will join. Therefore, no overflow occurs. When an actual wind tunnel experiment was conducted, no overflow to the outside of the wind tunnel occurred at all even when a wind equivalent to 55 km / h was passed.

  According to this configuration, there is a concern that the rotating blades rotate abnormally as the generator coil and the like are burned out. In addition, if the rotating blades themselves or the wind tunnel do not have sufficient rigidity, they can be broken. On the other hand, when the opening area of the ventilation hole or slit is set in advance according to the maximum wind speed passing through the wind tunnel (designed so that the above problem does not occur and overflow does not occur), the design Even if a wind that is weaker than the maximum wind speed passes through the ventilation hole or slit, the force that presses the air receiving surface of another blade behind the air becomes weak. Therefore, in this invention, it was set as the structure which has a rotational speed control apparatus which can adjust the opening area of the said ventilation hole thru | or a ventilation slit according to rotation of the said wind tunnel rotary blade. By adjusting the opening area, it is possible to freely adjust the rotation amount, rotation speed, rotation acceleration, etc. of the wind tunnel rotor blade, so that the above problems do not occur, and the ventilation hole or ventilation slit is provided. The flow velocity of the wind that blows through is adjusted to an appropriate one so that the force that pushes the wind receiving surface of another blade behind can be optimized.

As one configuration of such a rotational speed control device,
A sensor for detecting the rotation amount, rotation speed, or rotation acceleration of the wind tunnel rotor blades;
A variable body that squeezes or releases the opening of the vent hole or slit;
A configuration having a control device that controls the movement of the variable body based on the data detected by the sensor and controls the opening area of the portion is conceivable.

  That is, the sensor detects parameters such as the amount of rotation, rotation speed, and rotation acceleration of the wind tunnel rotor blades, and based on the data, the control device detects the variable body of the opening (for example, a plate-like one that enters and exits the opening). The amount of rotation, rotation speed, or rotation acceleration of the wind tunnel rotor blades can be controlled by automatically squeezing or releasing the opening. Thus, it is possible to control the rotational state of the wind tunnel rotor blade so as not to approach an abnormal state.

  In addition, the opening area of the ventilation holes or slits is set in advance according to the maximum wind speed that passes through this wind tunnel (design maximum wind speed; the coil of the generator is burned out, the rotating blade itself and the wind tunnel are The maximum wind speed is set by design estimation so that no problems such as breakage occur and overflow does not occur), even when a wind with a lower flow velocity passes through the ventilation hole or slit, Since the opening area of the ventilation hole or the ventilation slit is adjusted by the rotational speed control device, the air flow of the other blade on the rear side is received by controlling the flow velocity of the air blown through the ventilation hole or the ventilation slit to an appropriate one. The pressing force on the surface can be maintained in an optimum state.

  According to the configuration of the present invention as described above, a portion closer to the axis than the wind receiving surface of a blade of a rotating blade that receives and rotates in the wind tunnel is at a position orthogonal to the wind blowing through the wind tunnel. When rotating, the wind that blows through the wind tunnel passes through the ventilation hole or slit and hits the wind receiving surface of another blade on the leeward side of the wind tunnel. The wind receiving surface of the blades of the blades received the strongest wind and then gradually weakened. At that time, the wind received through the ventilation holes or slits was newly applied to give a stronger rotational force. Therefore, even if it is placed at that position, an excellent effect is obtained in that the rotational force becomes stronger.

In addition, the wind was pushing the wind receiving surface of another blade, immediately, will blow through the leeward side of the wind tunnel, it means that merges with the wind going as it is blowing through the wind tunnel, is not the occurrence of overflow.

  Furthermore, in the configuration of the present invention, a rotation speed control device capable of adjusting the opening area of the ventilation hole or the ventilation slit is provided, so that the rotation speed control device is based on the detected data related to the rotation of the wind tunnel rotor blades. Since the opening is automatically squeezed and released, the rotating blades rotate abnormally as the generator coils are burned out, or the rotating blades themselves and the wind tunnel are destroyed. Therefore, it is possible to control the rotation state of the wind tunnel rotating blades.

  In addition, the opening area of the ventilation holes or slits is set in advance according to the maximum wind speed that passes through the wind tunnel (opens according to the design maximum wind speed), and winds with a lower flow velocity are the ventilation holes. Even if it passes through the ventilation slit, by adjusting the opening area of the ventilation hole or ventilation slit by the rotational speed control device, by controlling the flow velocity of the air blown through the ventilation hole or ventilation slit to an appropriate one, It becomes possible to keep the force that pushes the wind receiving surface of another blade at the rear in an optimum state.

  Hereinafter, embodiments of the present invention will be described.

As described above, the wind tunnel rotary blade according to the present embodiment is provided by one or more blades 12 protruding into the wind tunnel when installed in the wind tunnel 20 (the numbering will be described later). A rotating blade 10 that rotates in response to wind blown through the wind tunnel 20, and the blade 12 has an axially extending portion (described later 16) extending outwardly from the rotating shaft of the rotating blade, and further the axially extending portion. (16) A wind receiving surface (14 to be described later) formed in a shape that easily receives the wind in the extending direction is provided, and the wind blowing through the wind tunnel 20 is received by the wind receiving surface (14) of the blade 12. This is a configuration in which a power generator (not shown) generates power using the rotational force of the rotary blade 10 rotating by the force.

  FIG. 1 shows one blade 12 provided in such a wind tunnel rotating blade 10. As shown in the figure, at a position away from the axis of the wind tunnel rotary blade 10 (described later), the blade 12 portion for receiving the wind is formed as a wind receiving surface 14 formed in a shape that easily receives the wind, A portion closer to the shaft than the wind receiving surface 14 is shown as 16 in the drawing. Ventilation holes 1 are formed in the later-described portions of the off-axis portion 16. The lowermost part below is a fixed piece (not numbered in the figure) fixed to the shaft of the rotary blade 10. FIG. 2 is a front view (b) and a side view (a) of the blade 12.

  In FIG. 3, the fixing pieces are fixed to the blades 12 at positions separated by 90 degrees around the axis of the rotary blade 10. Of course, the wind receiving surface 14 and the off-axis portion 16 of each blade 12 are attached along the axis of the rotary blade 10.

  Then, as shown in FIG. 3 and the next FIG. 4, such a wind tunnel rotating blade 10 is installed in the wind tunnel 20 through which the wind entering from the outside passes as described below. That is, the wind tunnel 20 is at a height position where one or a plurality of blades 12 protrudes from the wind tunnel 20 and receives the wind blown through the wind tunnel 20 by the protruding blade 12 (the wind receiving surface 14). The whole 10 is rotatably mounted at a position where it can rotate. In the drawing, it seems that one of the shafts is not attached to the shaft, but actually, the shaft is attached to the wind tunnel 20 on both sides by bearings such as bearing rolls, and one or both of them are provided with a transmission gear (not shown). ) Is attached to the generator (not shown).

  3 and 4, most of the wind that has passed through the wind tunnel 20 hits the wind receiving surface 14 of one blade 12, and the wind receiving surface 14 receives the wind force and converts it into the rotational force of the wind tunnel rotary blade 10. Is done. Of course, a part of the wind that has passed through the wind tunnel 20 (above the upper side of the blade 12 of the wind tunnel rotating blade 10) is blown through the wind tunnel 20 as it is.

  Next, the drilling position of the ventilation hole 1 in the off-axis portion 16 of each blade 12 will be described with reference to FIG.

  In FIG. 5, the two blades 12 protrude to the side of the wind tunnel 20 through which the wind blows. However, as shown in FIG. The wind receiving surface 14 of the blade 12 behind the leeward is gradually weakened after receiving the strongest wind, and the role of receiving almost the current wind is over. In this state, the wind tunnel rotating blades 10 are rotated by the inertial force already generated. On the other hand, the wind receiving surface 14 of the blade 12 on the front side (windward side) is in a state immediately before the wind is about to be received, and is in a state before the rotational force is obtained.

  On the premise of such an ideal state, the drilling position of the ventilation hole 1 is determined in the axially offset portion 14 of the blade 12.

  That is, when the blade (12) on the front side (windward side) of the rotary blade 10 is rotated to a position perpendicular to the wind blown through the wind tunnel 20, the axis portion 16 closer to the shaft than the wind receiving surface 14 has its axis. The wind blows out from the side portion 16, and the wind blown through is located at a position where it can be received by the wind receiving surface 14 of another blade 12 on the leeward side (rear side) of the wind tunnel 20. A ventilation hole 1 is formed at the position of the off-axis portion 16.

  By adopting such a configuration, a portion 16 (root side) closer to the shaft than the wind receiving surface 14 of a certain blade 12 of the wind tunnel rotating blade 10 rotating by receiving wind in the wind tunnel 20 blows through the wind tunnel. As shown in FIG. 5, the wind blown through the wind tunnel 20 passes through the ventilation hole 1 and is further on the leeward side of the wind tunnel 20 when it has been rotated to a position orthogonal to the wind. It strikes against the wind receiving surface 14 of the blade 12.

  The wind receiving surface 14 of the other blade 12 receives the wind that has passed through the ventilation hole 1 at the same time when the wind receiving surface 14 is gradually weakened after receiving the strongest wind. Will be given. For this reason, a rotational force that normally does not increase at that position is newly generated at that position.

  At this time, since the wind receiving surface 14 of the blade 12 having the ventilation hole 1 through which such wind has been blown is received, the wind receiving surface of the at least two blades 12 is immediately received through the wind tunnel 20. 14, the wind tunnel rotary blade 10 can obtain a stronger rotational force by the wind blowing through the wind tunnel 20.

After that moment, at the position where the other blade 12 is slightly rotated from there, the wind that has pushed the wind receiving surface 14 of the other blade 12 is moved to the leeward side of the wind tunnel 20 as shown in FIG. It blows through and joins with the wind that blows through the wind tunnel 20 as it is. Therefore, overflow does not occur. As described above, when an actual wind tunnel experiment was performed, overflow to the outside of the wind tunnel 20 did not occur at all even when a wind equivalent to 55 km / h was passed.

  In the present embodiment configuration, in addition to the above-described embodiment configuration, a rotation speed control device capable of adjusting the opening area of the ventilation hole 1 in accordance with the rotation of the wind tunnel rotating blade 10 is employed.

As one configuration of such a rotational speed control device, a sensor (not shown; detecting the rotational speed of the wind tunnel rotary blade 10 (otherwise, rotation amount or rotational acceleration) may be used; As shown in FIG. 7 , the variable body 1a and 1b (plate-like thing which goes in and out of an opening part, an actuator which moves it, etc.) which narrows or releases the opening part of the said ventilation hole 1, as shown in FIG. ) And the data detected by the sensor to control the movement of the variable bodies 1a and 1b and control the opening area of the portion (not shown; similarly, the movement of the variable body is controlled without contact) It may be configured to be able to communicate with the variable bodies 1a and 1b by wireless or the like.

  By setting it as such a structure, parameters, such as the rotational speed of the wind tunnel rotary blade 10, are detected with the said sensor, Based on the data, a control apparatus controls the vertical motion of the variable bodies 1a and 1b of an opening part, By automatically squeezing or releasing the opening, the rotational speed of the wind tunnel rotary blade 10 can be controlled.

  This is because there is a concern that the rotational speed of the wind tunnel rotary blade 10 increases due to the configuration as described above, and thereby the wind tunnel rotary blade 10 rotates abnormally enough to burn out the generator coil and the like. . In addition, if the wind tunnel rotary blade 10 itself, the wind tunnel 20 and the like do not have sufficient rigidity, they may be broken.

  However, by providing the rotational speed control device as described above and adjusting the opening area of the ventilation hole 1, the rotational speed of the wind tunnel rotary blade 10 (the same amount of rotation and rotational acceleration, etc.) can be controlled, and the wind tunnel rotation It is possible to control the rotation state of the blade 10 so as not to approach the abnormal state as described above.

  On the other hand, when the opening area of the vent hole 1 is set in advance according to the maximum wind speed that passes through the wind tunnel (set at the designed maximum wind speed), wind weaker than the designed maximum wind speed is the vent hole. Even if it passes through 1, the force which pushes the wind-receiving surface 14 of the other blade 12 in the back becomes weak. Even in such a case, the configuration of the rotational speed control device allows the opening area of the ventilation hole 1 to be adjusted according to the rotation of the wind tunnel rotary blade 10, so that the flow velocity of the wind that blows through the ventilation hole 1 is set appropriately. It adjusts to the thing, and the force which pushes the wind-receiving surface 14 of the other blade 12 in the back can be optimized. Therefore, when a wind that is weaker than the design maximum wind speed tries to blow through the ventilation hole 1, the optimum opening area is set, so that the force of pushing the wind receiving surface 14 of another blade 12 on the leeward side is increased. There is no weakening.

  Instead of the configuration of the variable bodies 1a and 1b for allowing a plate-shaped object to enter and exit from the opening of the ventilation hole 1, a configuration like a shutter of a camera may be used.

  The wind tunnel rotating blades of the present invention are not limited to the above-described illustrated examples, and various modifications can be made without departing from the scope of the present invention.

That wind tunnel rotating blade of the present invention, such as for power generation equipment, for example, electric vehicles and plug-in hybrid vehicles, in addition to other motor vehicles, as long as it can generate electricity by using the wind, use of the other is also possible Needless to say.

It is a perspective view which shows one blade 12 provided in the rotary blade 10 of the Example structure of this invention. It is the front view (b) and side view (a) of the said blade 12. FIG. FIG. 2 is a cross-sectional perspective view showing a state where the wind tunnel rotary blade 10 is installed in a wind tunnel 20. FIG. 3 is a side view when the wind receiving surface 14 of the blade 12 receives the most wind in the wind tunnel 20. It is a side view when the wind receiving surface 12 of another blade 12 receives the most wind in the wind tunnel 20 from the ventilation hole 1 according to this embodiment configuration. It is a side view when the wind receiving surface 12 of another blade 12 further rotates from the state where the wind in the wind tunnel 20 is most received from the ventilation hole 1 according to the configuration of the present embodiment . It is explanatory drawing which shows a motion of the variable bodies 1a and 1b of the opening part which comprises some rotation speed control apparatuses. It is the schematic which represented typically the mechanism of the power generation turbine which this inventor created experimentally for the auxiliary charge for electric vehicles or plug-in hybrid vehicles. It is explanatory drawing which shows what is called the overflow generation | occurrence | production state which flows backward toward the wind tunnel 200 entrance side in the said experiment structure, and overflows to the outer side of this wind tunnel 200 with the wind which blows in from the front on the entrance side. It is explanatory drawing which shows the structure which prevents generation | occurrence | production of the said overflow which this inventor proposed in patent document 1, and raises the rotation efficiency of the rotary blade 100, and the power generation efficiency of the generator 400. FIG.

DESCRIPTION OF SYMBOLS 1 Ventilation hole 1a, 1b Variable body 10 Wind-tunnel rotary blade 12, 121-128 Blade 121a-128a Auxiliary blade 14 Wind receiving surface 16 Axis part 20, 200 Wind tunnel 210 Bulkhead 400 Generator 410 Charger

Claims (3)

When the blade is installed in a wind tunnel, the blade is rotated by one or more blades projecting into the wind tunnel and receives the wind blowing through the wind tunnel, and the blade has an off-axis portion outward from the rotation axis of the blade. A wind receiving surface that is extended and further shaped to easily receive wind in the axial extension direction is provided, and wind that blows through the wind tunnel is received by the wind receiving surface of the blade and is rotated by the force. In wind tunnel rotor blades that generate electricity using the rotational force of the rotating rotor blades,
When the rotary vane rotates and moves to a position perpendicular to the wind passing through the wind tunnel, the portion closer to the axis than the wind receiving surface blows through the portion near the shaft, Ventilation holes or ventilation slits are drilled only at the position near the shaft of the front blade so that the wind tunnel is positioned to be received by the wind receiving surface of another blade on the leeward side. Wind tunnel rotating blades.   The wind tunnel rotating blade according to claim 1, further comprising a rotation speed control device capable of adjusting an opening area of the ventilation hole or the ventilation slit according to the rotation of the wind tunnel rotating blade. The rotational speed control device is
A sensor for detecting the rotation amount, rotation speed, or rotation acceleration of the wind tunnel rotor blades;
A variable body that squeezes or releases the opening of the vent hole or slit;
The wind tunnel rotor blade according to claim 2, further comprising a control device that controls movement of the variable body based on data detected by the sensor and controls an opening area of the portion.

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