Wind power generator

Abstract

To provide a wind power generator capable of successfully generating electric power by smoothly reciprocating a wind tunnel body between a windward side and a leeward side.SOLUTION: In a wind power generator (1) in which a power generator (4) is cooperated with and coupled to a wind tunnel body (6) reciprocating between a windward side and a leeward side, opening / closing doors (36, 37) are provided in an opening of a hollow wind tunnel body (6) so as to enable opening / closing. When the wind tunnel body (6) is moved to the windward side, the opening is closed by the opening / closing doors (36, 37) and by using wind power, the wind tunnel body (6) is moved from the windward side to the leeward side. When the wind tunnel body (6) is moved to the leeward side, the opening / closing doors (36, 37) are opened, and with the opening / closing doors (36, 37) opened, the wind tunnel body (6) is moved from the leeward side to the windward side.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to a wind power generation device in which a generator is interlocked with a wind tunnel body that moves back and forth between the windward side and the leeward side. [Background technology]

[0002] BACKGROUND ART Conventionally, a widely known wind power generating device has a configuration in which a generator is interlocked with a rotor body made up of a plurality of blades (see, for example, Patent Document 1).

[0003] In this conventional wind power generation system, a plurality of blades linked to a generator are rotated by wind power to generate electricity.

[0004] Conventional wind turbine generators generate electricity by rotating a plurality of blades using wind power, which has the problem of generating low-frequency noise.

[0005] Furthermore, conventional wind turbines generate electricity by rotating multiple blades using wind power, which requires the blades and generators to be installed at high altitudes, making the wind turbines difficult to manufacture and difficult to maintain.

[0006] Therefore, in order to solve the problems of the above-mentioned conventional wind power generation devices, the inventor developed a wind power generation device in which a generator is linked to a wind tunnel body that moves back and forth between the windward side and the leeward side (see Patent Document 2). [Prior art documents] [Patent documents]

[0007] [Patent Document 1] Japanese Patent Publication No. 2023-165301 [Patent Document 2] Patent Publication No. 2021-124113 Summary of the Invention [Problem to be solved by the invention]

[0008] The present invention is a further improvement on the wind power generation device developed by the inventor, which has a generator linked to a wind tunnel body that moves back and forth between the windward side and the leeward side. [Means for solving the problem]

[0009] That is, in the present invention according to claim 1, in a wind power generation device in which a generator is linked to a wind tunnel body that moves back and forth between the upwind side and the downwind side, an opening / closing door is provided at the opening of the hollow wind tunnel body so that when the wind tunnel body moves to the upwind side, the opening is closed by the opening / closing door, and the wind tunnel body is moved from the upwind side to the downwind side by wind force, and when the wind tunnel body moves to the downwind side, the opening / closing door is opened, and the wind tunnel body is moved from the downwind side to the upwind side with the opening / closing door open.

[0010] Furthermore, in the present invention according to claim 2, in the present invention according to claim 1, a wind stopper plate that is linked to the opening and closing door is provided in the wind tunnel body so that it can be raised and lowered freely, and when the wind tunnel body moves upwind, the wind force causes the wind stopper plate to rise, and in turn, the opening is blocked by the opening and closing door.

[0011] Furthermore, in the present invention according to claim 3, in the present invention according to claim 1 or claim 2, the opening and closing door is locked when the wind tunnel body moves to the upwind side and blocks the opening with the opening and closing door, and the opening and closing door is unlocked when the wind tunnel body moves to the downwind side, and the opening and closing door is opened by wind force. [Effects of the Invention]

[0012] The present invention provides the following effects.

[0013] In other words, in this invention, in a wind power generation device in which a generator is linked to a wind tunnel body that moves back and forth between the upwind side and the downwind side, an opening / closing door is provided at the opening of the hollow wind tunnel body so that it can be opened and closed freely, and when the wind tunnel body moves to the upwind side, the opening is closed with the opening / closing door, allowing the wind tunnel body to move from the upwind side to the downwind side by wind force, and when the wind tunnel body moves to the downwind side, the opening / closing door is opened, and with the opening / closing door open, the wind tunnel body moves from the downwind side to the upwind side, so that the wind tunnel body can move back and forth smoothly between the upwind side and the downwind side.

[0014] In particular, if a wind stop plate linked to the opening / closing door is provided in the wind tunnel body so that it can be raised and lowered freely, and the wind stop plate is raised by wind force when the wind tunnel body moves upwind, and the opening is accordingly closed by the opening / closing door, the opening / closing door can be automatically closed by effectively utilizing wind force without providing a separate power source.

[0015] Furthermore, if the opening and closing door is locked when the wind tunnel body moves to the upwind side and blocks the opening with the opening and closing door, and the opening and closing door is unlocked when the wind tunnel body moves to the downwind side, and the opening and closing door is opened by wind force, the opening and closing door can be automatically opened by effectively utilizing wind force without providing a separate power source. [Brief explanation of the drawings]

[0016] [Figure 1] 1 is an explanatory plan view showing a wind turbine generator according to the present invention; [Figure 2] FIG. [Figure 3] Plan view (a), side view (b), and back view (c) showing the opening and closing doors and wind stopper of the wind tunnel body. [Figure 4] An explanatory diagram of the operation of a wind power generation device (wind tunnel). [Figure 5] Front view of the wind tunnel body. [Figure 6] FIG. [Figure 7] FIG. DETAILED DESCRIPTION OF THE INVENTION

[0017] A specific structure of the wind turbine generator according to the present invention will be described below with reference to the drawings.

[0018] As shown in FIGS. 1 and 2, a wind turbine generator 1 has a driving machine 2 and a generator 4 interlocked with each other via an interlocking mechanism 3.

[0019] The driver 2 houses a wind tunnel body 6 inside a hollow wind tunnel 5 that penetrates in the front-to-rear direction (left-to-right direction in Figs. 1 and 2). The driver 2 may be of a single-row configuration, with one wind tunnel body 6 housed in each wind tunnel 5, but a multi-row configuration is preferable. In this example, a three-row configuration is used, with three wind tunnels 5 lined up on the left and right, each housing one wind tunnel body 6.

[0020] The wind tunnel 5 has openings at the front and rear ends, a passage 7 for running the wind tunnel body 6 formed at the bottom, left and right side walls 8 and 9 provided at a fixed interval on the left and right of the passage 7, and a top plate 10 formed at the top. The front part of the top plate 10 is inclined so that it is high in the front and low in the rear, and the rear part is flat. As a result, the opening at the front end of the wind tunnel 5 is wider than the opening at the rear end, allowing it to take in more wind from the front, accelerate the wind inside, and expel it from the rear.

[0021] As will be described later, the wind tunnel body 6 travels (moves) back and forth between the windward side at the front and the leeward side at the rear in a passage 7 of the wind tunnel 5. The rear end of the wind tunnel body 6 is interlocked with the interlocking mechanism 3 via a rod 11.

[0022] In the interlocking mechanism 3, a crankshaft 12 to which a rod 11 is connected so as to be freely rotatable up and down is interlocked with a rotating shaft 14 via a speed change shaft 13, and the rotating shaft 14 is interlocked with a generator 4. Each of the shafts 12, 13, and 14 is rotatably supported by a bearing 15.

[0023] The crankshaft 12 is formed with crank pieces 16, each of which is connected vertically rotatably to a rod 11 that is connected vertically rotatably to each of the wind tunnel bodies 6. As a result, when the wind tunnel body 6 moves back and forth inside the wind tunnel 5, the crank pieces 16 rotate accordingly, causing the crankshaft 12 to rotate. Note that here, multiple (three) crank pieces 16 are formed at equal intervals in the rotational direction so that the phases during rotation are equal intervals, allowing the crankshaft 12 to rotate smoothly.

[0024] In addition, a drive gear (spur gear) 17 that rotates in conjunction with the rotation of the crank piece 16 is attached to the crankshaft 12, and this drive gear 17 is meshed with a driven gear (spur gear) 18 attached to the transmission shaft 13.

[0025] The number of teeth of the driven gear 18 of the speed change shaft 13 is made smaller than the number of teeth of the drive gear 17 so that the speed change shaft 13 rotates at a faster rate than the crankshaft 12.

[0026] A speed change gear (spur gear) 19 that rotates together with the driven gear 18 is attached to the speed change shaft 13, and this speed change gear 19 is meshed with an interlocking gear (spur gear) 20 that is attached to the rotating shaft 14.

[0027] The number of teeth of the interlocking gear 20 of the rotary shaft 14 is set to be less than the number of teeth of the speed change gear 19 so that the rotary shaft 14 rotates at a faster speed than the speed change shaft 13 .

[0028] A rotary gear (spur gear) 21 that rotates together with the interlocking gear 20 is attached to the rotary shaft 14, and this rotary gear 21 is meshed with a generator gear (spur gear) 22 attached to the generator 4. As a result, the crankshaft 12, the speed change shaft 13, and the rotary shaft 14 rotate at an accelerated rate in stages as the wind tunnel body 6 moves back and forth in the driving machine 2, and electricity is generated by the generator 4. The electricity generated by the generator 4 may be used as a power source as it is, or may be stored in a storage battery.

[0029] A flywheel 23 that rotates together with the rotary gear 21 is attached to the rotary shaft 14. This allows the rotary shaft 14, crankshaft 12, and speed-change shaft 13 to rotate smoothly by utilizing the inertia of the flywheel 23.

[0030] Furthermore, an auxiliary gear (spur gear) 24 that rotates together with the rotary gear 21 is attached to the rotary shaft 14, and this auxiliary gear 24 is connected to a motor gear (spur gear) 26 attached to an auxiliary motor 25 via a clutch 27 so that the connection and disconnection can be switched between them. This allows the auxiliary motor 25 to be driven at start-up, etc., to smoothly rotate the rotary shaft 14.

[0031] The interlocking mechanism 3 is not limited in structure as long as it can transmit the reciprocating motion of the wind tunnel body 6 of the driving machine 2 to the generator 4. For example, it is not limited to a case where gears are directly meshed with each other, and they can also be connected by a chain or the like.

[0032] As shown in FIG. 3, the wind tunnel 6 is formed to be mobile by attaching wheels 29 to the lower part of a hollow main body 28 that penetrates in the front-rear direction (left-right direction in FIG. 3).

[0033] The wind tunnel 6 has openings at the front and rear ends of a hollow main body 28, a rectangular bottom plate 30 at the bottom, left and right side walls 31, 32 spaced apart on either side of the bottom plate 30, and a ceiling 33 at the top. The front portion of the ceiling 33 is inclined so that it is higher in front and lower in rear, while the rear portion is flat. This makes the opening at the front end of the wind tunnel 6 wider than the opening at the rear end, allowing it to take in more air from the front, accelerate the air inside, and expel it from the rear.

[0034] In addition, the wind tunnel body 6 has a support pillar 34 extending up and down in the center of the opening at the rear end of the main body 28, a rib 35 attached to the rear of the support pillar 34, and a rod 11 connected to the interlocking mechanism 3 attached to the center of the rib 35 so that it can freely rotate up and down.

[0035] A pair of left and right doors 36, 37 are attached to the left and right rear ends of the main body 28 so as to be able to open and close the opening at the rear end of the main body 28, and a rectangular wind stop plate 38 is attached to the inside (bottom plate 30) of the main body 28 so as to be able to forcibly close the doors 36, 37. As will be described later, the doors 36, 37 are provided with a door closing mechanism 39 for closing the doors 36, 37 when the wind tunnel 6 moves upwind, and a door opening mechanism 40 for opening the doors 36, 37 when the wind tunnel 6 moves downwind.

[0036] 4, when the wind tunnel body 6 moves to the windwardmost side, the closing door mechanism 39 closes the doors 36, 37, and the opening at the rear end of the main body 28 is closed by the doors 36, 37 (FIG. 4(a)). As a result, the wind tunnel body 6 receives the wind flowing in from the opening at the front end of the main body 28 at the doors 36, 37 at the rear end, and moves from the windward side to the leeward side by the wind force, thereby rotating the crankshaft 12 (FIG. 4(b)).

[0037] Thereafter, when the wind tunnel body 6 moves to the leeward side, the door-opening mechanism 40 opens the doors 36, 37, opening the opening at the rear end of the main body 28 (FIG. 4(c)). As a result, the wind that flows in from the opening at the front end of the main body 28 flows out from the opening at the rear end, reducing wind resistance, and the wind tunnel body 6 moves from the leeward side to the windward side due to the rotation of the crankshaft 12 due to inertia (FIG. 4(d)).

[0038] The wind power generation device 1 has doors 36, 37 at the opening of the hollow wind tunnel body 6 that can be opened and closed freely, and is also provided with a door closing mechanism 39 and a door opening mechanism 40.By repeatedly performing the reciprocating motion of the wind tunnel body 6, the wind tunnel body 6 can be smoothly moved back and forth between the upwind side and the downwind side, allowing the generator 4 to generate electricity effectively.

[0039] In the wind power generation device 1, the specific structures of the door closing mechanism 39 and the door opening mechanism 40 are not limited, but here, as shown in Figures 5 to 7, the door closing mechanism 39 is configured to have a wind stop plate 38 that is connected to the opening and closing doors 36, 37 on the wind tunnel body 6 and can be raised and lowered freely, and when the wind tunnel body 6 moves to the windward side, the wind stop plate 38 is raised by wind force, and as a result, the opening of the wind tunnel body 6 is blocked by the opening and closing doors 36, 37, and the door opening mechanism 40 is configured to lock the opening and closing doors 36, 37 when the wind tunnel body 6 moves to the windward side and the opening of the wind tunnel body 6 is blocked by the opening and closing doors 36, 37, and then unlock the opening and closing doors 36, 37 when the wind tunnel body 6 moves to the leeward side, and open the opening and closing doors 36, 37 by wind force.

[0040] In the wind turbine generator 1, the rotating shafts 41, 42 of the opening / closing doors 36, 37 are rotatably attached to the left and right sides of the opening at the rear end of the main body 28, and the wind stopper plate 38 is rotatably attached to a drive shaft 43 rotatably attached to the main body 28, and further, a driven shaft 44 is rotatably attached to the main body 28. The rotating shafts 41, 42 extending vertically are supported by upper and lower bearings 45, the drive shaft 43 extending horizontally to the left and right is supported by left and right bearings 46, and the driven shaft 44 extending horizontally to the left and right is supported by left and right bearings 47.

[0041] The closing door mechanism 39 has a ratchet gear 48 attached to the center of the drive shaft 43, and a ratchet pawl 49 and a wind stopper weight 50 attached to the center of the base end (rear end) of the wind stopper plate 38 so that they can rotate up and down.

[0042] In addition, the closing door mechanism 39 has drive gears (spur gears) 51 attached to the left and right of the drive shaft 43, and driven gears (spur gears) 52 attached to the left and right of the driven shaft 44, with the drive gears 51 and driven gears 52 meshing with each other.

[0043] Furthermore, the closing door mechanism 39 has an interlocking gear (bevel gear) 53 attached to the left and right ends of the driven shaft 44, and a rotating gear (bevel gear) 54 attached to the lower ends of the rotating shafts 41, 42 of the opening and closing doors 36, 37, and the interlocking gear 53 and the rotating gear 54 are meshed with each other.

[0044] When the wind tunnel body 6 moves to the windwardmost side of the passage 7 of the wind tunnel 5, the closing door mechanism 39 causes the windbreak plate weight 50 to abut against a windward-side guide 55, which is provided at the top of the passage 7 and has a slope that is high at the front and low at the rear, and the ratchet pawl 49 engages with the ratchet gear 48, causing the windbreak plate 38 to rotate (stand up) slightly upward, forming a gap between the windbreak plate 38 and the floor board 30 of the main body 28. Then, the wind flowing in from the opening at the front end of the main body 28 causes the windbreak plate 38 to rotate (stand up) further upward, and the ratchet pawl 49 rotates the ratchet gear 48, which in turn rotates the drive shaft 43, the driven shaft 44 and the rotary shafts 41, 42, rotating the opening-and-closing doors 36, 37 in the closing direction, causing the opening at the rear end of the main body 28 to be closed by the opening-and-closing doors 36, 37. When the opening and closing doors 36, 37 are closed, the wind stop plate 38 is released from the engagement between the ratchet pawl 49 and the ratchet gear 48 by the action of the wind stop plate weight 50 and its own weight, and returns to its collapsed state on the floor board 30 again.

[0045] The door-opening mechanism 40 has support tubes 56 that penetrate vertically and are attached at intervals vertically to a support post 34 provided in the center of the opening at the rear end of the main body 28, and the upper end and middle part of a connecting body 58 that extends vertically and is attached to the top of a door-opening weight 57 is bent downward in a U-shape to form a connecting rod 59, which is inserted into the support tube 56 so as to be able to move up and down freely.

[0046] The door-opening mechanism 40 has insertion tubes 60 that penetrate vertically through the tips of the doors 36, 37 and are attached at intervals from top to bottom, and the upper surfaces of the insertion tubes 60 are inclined surfaces that are low in the front and high in the rear. As a result, when the doors 36, 37 are closed, the connecting rod 59 rises along the inclined surfaces of the insertion tubes 60 and is inserted into the insertion tubes 60, thereby holding the doors 36, 37 in a closed state.

[0047] When the wind tunnel body 6 moves to the leeward end of the passage 7 of the wind tunnel 5, the door weight 57 comes into contact with a leeward guide 61, which is provided at the top of the passage 7 and has a low front-to-high rear slope, causing the connecting rod 59 to rise and come out of the insertion tube 60. Then, the doors 36, 37 are forcibly opened by the wind flowing in from the opening at the front end of the main body 28.

[0048] As described above, the wind power generation device 1 has a generator 4 linked to a wind tunnel body 6 that moves back and forth between the upwind side and the downwind side, and opening / closing doors 36, 37 that can be opened and closed freely at the opening of the hollow wind tunnel body 6. When the wind tunnel body 6 moves to the upwind side, the opening is closed by the opening / closing doors 36, 37, allowing the wind tunnel body 6 to move from the upwind side to the downwind side by wind force, and when the wind tunnel body 6 moves to the downwind side, the opening / closing doors 36, 37 are opened, allowing the wind tunnel body 6 to move from the downwind side to the upwind side with the opening / closing doors 36, 37 open.

[0049] Therefore, in the wind turbine generator 1 configured as described above, the wind tunnel body 6 can be smoothly moved back and forth between the windward side and the leeward side, and power can be generated satisfactorily.

[0050] In addition, the wind power generation device 1 is configured so that a wind stop plate 38 that is linked to the opening and closing doors 36, 37 and can be raised and lowered freely is provided on the wind tunnel body 6, and when the wind tunnel body 6 moves upwind, the wind force causes the wind stop plate 38 to rise, and as a result, the opening is closed by the opening and closing doors 36, 37.

[0051] Therefore, in the wind power generation system 1 having the above configuration, the opening and closing doors 36, 37 can be automatically closed by effectively utilizing wind power without providing a separate power source.

[0052] In addition, the wind power generation device 1 is configured so that when the wind tunnel body 6 moves upwind and the opening is blocked by the opening doors 36, 37, the opening doors 36, 37 are locked, and when the wind tunnel body 6 moves downwind, the opening doors 36, 37 are unlocked, and the opening doors 36, 37 are opened by wind force.

[0053] Therefore, in the wind power generating device 1 configured as described above, the opening and closing doors 36, 37 can be automatically opened by effectively utilizing wind power without providing a separate power source. [Explanation of symbols]

[0054] 1 Wind turbine generator 2 Driver 3 Interlocking mechanism 4 Generator 5 Wind tunnel 6 Wind tunnel body 7 Passage 8,9 Side walls 10 Top plate 11 Rod 12 crankshaft 13 transmission shaft 14 Rotating shaft 15 Bearing 16 crank piece 17 drive gear 18 Driven gear 19 Speed ​​change gear 20 interlocking gear 21 rotating gear 22 Generator gear 23 Flywheel 24 Auxiliary gear 25 Auxiliary motor 26 Motor gear 27 Clutch 28 Body 29 Wheels 30 Bottom plate 31,32 Side wall 33 Ceiling 34 Support 35 Rib 36,37 Opening door 38 Windshield plate 39 Door closing mechanism 40 Door opening mechanism 41, 42 Rotating shaft 43 Drive shaft 44 Driven shaft 45, 46, 47 Bearing 48 Ratchet gear 49 Ratchet claw 50 Windbreaker weight 51 driving gear 52 driven gear 53 Interlocking gear 54 Rotating gear 55 Windward guide 56 Support tube 57 Door opening and closing weight 58 Connector 59 Connecting rod 60 Insertion tube 61 Leeward guide

Claims

1. In a wind power generation device in which a generator is interlocked with a wind tunnel body that moves back and forth between the windward side and the leeward side, This wind power generation device is characterized in that an opening / closing door is provided at the opening of a hollow wind tunnel body so that when the wind tunnel body moves to the upwind side, the opening is closed by the opening / closing door, allowing the wind tunnel body to move from the upwind side to the downwind side by wind force, and when the wind tunnel body moves to the downwind side, the opening / closing door is opened, allowing the wind tunnel body to move from the downwind side to the upwind side with the opening / closing door open.

2. The wind power generation device according to claim 1, characterized in that a wind stopper plate connected to the opening and closing door is provided in the wind tunnel body so that it can be raised and lowered freely, and when the wind tunnel body moves upwind, the wind stopper plate is raised by wind force, and the opening is accordingly closed by the opening and closing door.

3. 3. A wind power generation device according to claim 1, wherein the opening and closing door is locked when the wind tunnel body moves to the upwind side and closes the opening with the opening and closing door, and the opening and closing door is unlocked when the wind tunnel body moves to the downwind side, so that the opening and closing door is opened by wind force.

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