Wind power generation device

Abstract

To provide a wind power generation device that can smoothly reciprocate a wind tunnel body between the windward side and the leeward side and generate electricity well. 【Solution means】In the present invention, in a wind power generation device (1) in which a generator (4) is interlockingly connected to a wind tunnel body (6) that reciprocates between the windward side and the leeward side, opening and closing doors (36, 37) are provided at the openings of the hollow wind tunnel body (6) so as to be openable and closable. When the wind tunnel body (6) moves to the windward side, the opening is blocked by the opening and closing doors (36, 37), and the wind tunnel body (6) is moved from the windward side to the leeward side by the wind force. When the wind tunnel body (6) moves to the leeward side, the opening and closing doors (36, 37) are opened, and the wind tunnel body (6) is moved from the leeward side to the windward side with the opening and closing doors (36, 37) open.

Description

Technical Field

[0001] The present invention relates to a wind power generation device in which a generator is interlocked and connected to a wind tunnel body that reciprocates between the windward side and the leeward side.

Background Art

[0002] As a conventional wind power generation device, a configuration in which a generator is interlocked and connected to a rotating blade body composed of a plurality of blades is widely known (see, for example, Patent Document 1).

[0003] In this conventional wind power generation device, electricity is generated by rotating a plurality of blades interlocked with the generator by wind power.

[0004] In the conventional wind power generation device, since electricity is generated by rotating a plurality of blades by wind power, there is a problem that low-frequency noise is generated.

[0005] Further, in the conventional wind power generation device, since electricity is generated by rotating a plurality of blades by wind power, it is necessary to install the blades and the generator at a high place, making it difficult to manufacture the wind power generation device and impossible to easily perform maintenance on the wind power generation device.

[0006] Therefore, in order to solve the problems of the above-mentioned conventional wind power generation device, the inventor has developed a wind power generation device in which a generator is interlocked and connected to a wind tunnel body that reciprocates between the windward side and the leeward side (see Patent Document 2).

Prior Art Documents

Patent Documents

[0007]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0008] In the present invention, further improvements have been made to a wind power generation device in which a generator is interlockingly connected to a wind tunnel body that reciprocates between the upwind side and the downwind side, developed by the inventor of the present invention.

Means for Solving the Problems

[0009] That is, in the present invention according to claim 1, in a wind power generation device in which a generator is interlockingly connected to a wind tunnel body that reciprocates between the upwind side and the downwind side, Via an interlocking mechanism that transmits the reciprocating motion of the wind tunnel body to the generator in the wind power generation device in which the generator is interlockingly connected, A plurality of crank pieces are formed at equal intervals in the rotational direction of the crankshaft of the interlocking mechanism, and the wind tunnel body is connected to each crank piece. an opening and closing door is provided at the opening of the hollow wind tunnel body so as to be openable and closable, At the same time, a door closing mechanism for closing the opening and closing door of the wind tunnel body and a door opening mechanism for opening the opening and closing door are provided. when the wind tunnel body moves to the upwind side, Using the door closing mechanism the opening is closed with the opening and closing door, and the wind tunnel body is moved from the upwind side to the downwind side by the wind force, Thereby rotating the crankshaft. when the wind tunnel body moves to the downwind side, Using the door opening mechanism the opening and closing door is opened, and in the state where the opening and closing door is opened, Due to the rotation of the crankshaft the wind tunnel body is moved from the downwind side to the upwind side The crankshaft rotates due to the reciprocating movement of the plurality of wind tunnel bodies, and power generation is performed by the generator. in this way.

Effects of the Invention

[0012] And in the present invention, the following effects are achieved.

[0013] That is, in the present invention, in a wind power generation device in which a generator is interlockingly connected to a wind tunnel body that reciprocates between the upwind side and the downwind side, an opening and closing door is provided at the opening of the hollow wind tunnel body so as to be openable and closable. When the wind tunnel body moves to the upwind side, the opening is closed with the opening and closing door, and the wind tunnel body is moved from the upwind side to the downwind side by the wind force. When the wind tunnel body moves to the downwind side, the opening and closing door is opened, and in the state where the opening and closing door is opened, the wind tunnel body is moved from the downwind side to the upwind side. Therefore, the wind tunnel body can smoothly reciprocate between the upwind side and the downwind side.

[0014] In particular, a windstop plate that is interlockingly connected to the opening / closing door of the wind tunnel body is provided so as to be able to be erected and laid down. When the wind tunnel body moves to the windward side, the windstop plate is erected by the wind force, and accordingly, when the opening / closing door is used to close the opening, the wind force can be effectively utilized without providing a separate power source to automatically close the opening / closing door.

[0015] Also, when the wind tunnel body moves to the windward side and the opening / closing door closes the opening, the opening / closing door is locked, and when the wind tunnel body moves to the leeward side, the opening / closing door is unlocked to open the opening / closing door by the wind force. In this case, the wind force can be effectively utilized without providing a separate power source to automatically open the opening / closing door.

Brief Description of the Drawings

[0016]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Modes for Carrying Out the Invention

[0017] Hereinafter, the specific structure of the wind power generation device according to the present invention will be described with reference to the drawings.

[0018] As shown in FIGS. 1 and 2, the wind power generation device 1 interlockingly connects a generator 4 to a drive machine 2 via an interlocking mechanism 3.

[0019] The drive unit 2 houses the wind tunnel body 6 inside a hollow wind tunnel 5 that penetrates in the front-rear direction (in FIGS. 1 and 2, the left-right direction). Note that the drive unit 2 may be of a single-row configuration in which one wind tunnel body 6 is housed in one wind tunnel 5, but a multi-row configuration is preferred. Here, three wind tunnels 5 are arranged side by side left and right, and a three-row configuration is adopted in which one wind tunnel body 6 is housed in each wind tunnel 5.

[0020] The wind tunnel 5 has openings formed at the front end and the rear end, forms a passage 7 for the wind tunnel body 6 to travel at the lower part, provides left and right side walls 8 and 9 at regular intervals on the left and right of the passage 7, and forms a top plate 10 at the upper part. The top plate 10 is inclined with the front part being higher at the front and lower at the rear and the rear part being formed flat. As a result, the opening at the front end of the wind tunnel 5 is wider than the opening at the rear end, enabling a large amount of wind to be taken in from the front and the wind to be accelerated inside and discharged from the rear.

[0021] As will be described later, the wind tunnel body 6 reciprocates (moves) between the upwind side in the front and the downwind side in the rear in the passage 7 of the wind tunnel 5. An interlocking mechanism 3 is interlockingly connected to the rear end of the wind tunnel body 6 via a rod 11.

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

[0023] The crankshaft 12 is formed with a crank piece 16 that interlockingly connects the rods 11 that are connected to the respective wind tunnel bodies 6 so as to be rotatable up and down so as to be rotatable up and down. Thus, when the wind tunnel body 6 reciprocates inside the wind tunnel 5, the crank piece 16 rotates accordingly and the crankshaft 12 rotates. Here, a plurality (three) of crank pieces 16 are formed at equal intervals in the rotational direction so that the phases during rotation are at equal intervals, enabling the crankshaft 12 to rotate smoothly.

[0024] Further, a drive gear (spur gear) 17 that rotates as the crank piece 16 rotates 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 transmission shaft 13 is configured such that the number of teeth of the driven gear 18 is less than the number of teeth of the drive gear 17, and it rotates at a higher speed than the crankshaft 12.

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

[0027] The rotating shaft 14 is configured such that the number of teeth of the interlocking gear 20 is less than the number of teeth of the transmission gear 19, and it rotates at a higher speed than the transmission shaft 13.

[0028] A rotating gear (spur gear) 21 that rotates together with the interlocking gear 20 is attached to the rotating shaft 14, and this rotating gear 21 is meshed with a power generation gear (spur gear) 22 attached to the generator 4. As a result, the reciprocating movement of the wind tunnel body 6 by the driving machine 2 causes the crankshaft 12, the transmission shaft 13, and the rotating shaft 14 to rotate stepwise and accelerate, and power generation is performed by the generator 4. The electric power generated by the generator 4 may be used as a power source as it is, or may be stored in a storage battery.

[0029] Further, a flywheel 23 that rotates together with the rotating gear 21 is attached to the rotating shaft 14. Thereby, the rotating shaft 14, the crankshaft 12, and the transmission shaft 13 rotate smoothly by utilizing the inertia of the flywheel 23.

[0030] Furthermore, an auxiliary gear (spur gear) 24 that rotates together with the rotating gear 21 is attached to the rotating shaft 14, and this auxiliary gear 24 is connected to a motor gear (spur gear) 26 attached to the auxiliary motor 25 via a clutch 27 so that connection and disconnection can be switched. Thereby, the auxiliary motor 25 is driven at startup or the like to rotate the rotating shaft 14 smoothly.

[0031] Note that the interlocking mechanism 3 only needs to be able to transmit the reciprocating motion of the wind tunnel body 6 of the drive machine 2 to the generator 4, and the structure is not limited. For example, it is not limited to the case where gears are directly meshed with each other, and it may also be connected by a chain or the like.

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

[0033] Further, the wind tunnel body 6 has openings formed at the front end and the rear end of the hollow main body 28, forms a rectangular plate-shaped bottom plate 30 at the lower part, provides left and right side walls 31, 32 at a certain interval on the left and right of the bottom plate 30, and forms a ceiling 33 at the upper part. The ceiling 33 is inclined with the front part being higher at the front and lower at the rear and the rear part being formed flat. Thereby, the opening at the front end of the wind tunnel body 6 is wider than the opening at the rear end, and a large amount of wind can be taken in from the front, and the wind is accelerated inside and discharged from the rear.

[0034] Further, the wind tunnel body 6 is provided with a column 34 extending vertically at the center of the opening at the rear end of the main body 28, a rib 35 is attached to the rear part of the column 34, and a rod 11 interlockingly connected to the interlocking mechanism 3 is rotatably attached up and down at the center of the rib 35.

[0035] A pair of left and right opening / closing doors 36, 37 are attached to the left and right rear ends of the main body 28 of the wind tunnel body 6 so as to be openable and closable so that the opening at the rear end of the main body 28 can be opened and closed. Further, a rectangular plate-shaped wind stop plate 38 is attached to the inside (bottom plate 30) of the main body 28 so as to be able to be turned up and down forcibly to close the opening / closing doors 36, 37. Note that, as will be described later, the opening / closing doors 36, 37 are provided with a closing door mechanism 39 for closing the opening / closing doors 36, 37 when the wind tunnel body 6 moves to the upwind side and an opening door mechanism 40 for opening the opening / closing doors 36, 37 when the wind tunnel body 6 moves to the downwind side.

[0036] Then, as shown in Fig. 4, when the wind tunnel body 6 moves to the most upwind side, the opening / closing doors 36 and 37 are closed by the door closing mechanism 39, and the opening at the rear end of the main body 28 is closed by the opening / closing doors 36 and 37 (Fig. 4(a)). Thereby, the wind tunnel body 6 receives the wind flowing in from the opening at the front end of the main body 28 with the opening / closing doors 36 and 37 at the rear end, moves from the upwind side to the downwind side by the wind force, and accordingly, rotates the crankshaft 12 (Fig. 4(b)).

[0037] After that, when the wind tunnel body 6 moves to the most downwind side, the opening / closing doors 36 and 37 are opened by the door opening mechanism 40, and the opening at the rear end of the main body 28 is opened (Fig. 4(c)). Thereby, the wind flowing in from the opening at the front end of the main body 28 will flow out from the opening at the rear end in the wind tunnel body 6, the wind resistance is reduced, and the wind tunnel body 6 moves from the downwind side to the upwind side by the rotation due to the inertia of the crankshaft 12 (Fig. 4(d)).

[0038] The wind power generation device 1 is provided with opening / closing doors 36 and 37 that can be opened and closed freely at the opening of the hollow wind tunnel body 6, and is provided with a door closing mechanism 39 and a door opening mechanism 40. By repeatedly performing the reciprocating motion of the above-mentioned wind tunnel body 6, the wind tunnel body 6 can be smoothly reciprocated between the upwind side and the downwind side, so that the generator 4 can generate electricity well.

[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. Here, as shown in Figs. 5 to 7, the door closing mechanism 39 is provided with a wind stop plate 38 that is linked and connected to the opening / closing doors 36 and 37 on the wind tunnel body 6 so as to be able to be erected and laid down. When the wind tunnel body 6 moves to the most upwind side, the wind stop plate 38 is erected by the wind force, and accordingly, the opening of the wind tunnel body 6 is closed by the opening / closing doors 36 and 37. The door opening mechanism 40 locks the opening / closing doors 36 and 37 when the wind tunnel body 6 moves to the most upwind side and the opening of the wind tunnel body 6 is closed by the opening / closing doors 36 and 37. Then, when the wind tunnel body 6 moves to the most downwind side, the opening / closing doors 36 and 37 are unlocked, and the opening / closing doors 36 and 37 are opened by the wind force.

[0040] In the wind power generation device 1, the rotating shafts 41 and 42 of the opening and closing doors 36 and 37 are rotatably attached to the left and right side portions of the opening at the rear end of the main body 28. Also, a wind shielding plate 38 is vertically rotatably attached to a drive shaft 43 rotatably attached to the main body 28, and a driven shaft 44 is rotatably attached to the main body 28. The rotating shafts 41 and 42 extending vertically up and down are supported by upper and lower bearings 45, the drive shaft 43 extending horizontally left and right is supported by left and right bearings 46, and the driven shaft 44 extending horizontally 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 weight 50 for the wind shielding plate are vertically rotatably attached to the center of the base end (rear end) of the wind shielding plate 38.

[0042] Also, 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, and the drive gear 51 and the driven gear 52 are meshed with each other.

[0043] Furthermore, the closing door mechanism 39 has interlocking gears (bevel gears) 53 attached to the left and right end portions of the driven shaft 44, and rotating gears (bevel gears) 54 attached to the lower end portions of the rotating shafts 41 and 42 of the opening and closing doors 36 and 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 most upwind side of the passage 7 of the wind tunnel 5, the weight 50 for the windstop plate abuts against the upwind guide 55 provided at the upper part of the passage 7 and having a front-high and rear-low inclination, the ratchet pawl 49 engages with the ratchet gear 48, and the windstop plate 38 rotates (stands up) slightly upward, forming a gap between the windstop plate 38 and the floor plate 30 of the main body 28. Then, receiving the wind flowing in from the opening at the front end of the main body 28, the windstop plate 38 rotates (stands up) further upward. Along with this, the ratchet pawl 49 rotates the ratchet gear 48, thereby rotating the drive shaft 43, the driven shaft 44, and the rotating shafts 41, 42, and rotating the opening and closing doors 36, 37 in the closing direction to close the opening at the rear end of the main body 28 with the opening and closing doors 36, 37. Note that when the opening and closing doors 36, 37 are closed, the engagement between the ratchet pawl 49 and the ratchet gear 48 is released due to the action of the weight 50 for the windstop plate and its own weight, and the windstop plate 38 returns to the state of lying down on the floor plate 30 again.

[0045] The door opening mechanism 40 is attached with support pipes 56 penetrating vertically through a support column 34 provided at the center of the opening at the rear end of the main body 28 at vertical intervals, and forms a connecting rod 59 by bending the upper end and the middle part of a vertically extending connecting body 58 attached to the upper part of the weight 57 for the opening and closing door downward in a U shape, and inserts the connecting rod 59 into the support pipe 56 so as to be vertically movable up and down.

[0046] Also, the door opening mechanism 40 is attached with insertion pipes 60 penetrating vertically through the tips of the opening and closing doors 36, 37 at vertical intervals, and makes the upper surface of the insertion pipe 60 an inclined surface with a front-low and rear-high inclination. Thereby, when the opening and closing doors 36, 37 are closed, the connecting rod 59 rises along the inclined surface of the insertion pipe 60 and is inserted into the insertion pipe 60, so as to hold the opening and closing doors 36, 37 in the closed state.

[0047] When the wind tunnel body 6 moves to the most downwind side of the passage 7 of the wind tunnel 5, the weight 57 for the opening and closing door abuts against the downwind guide 61 provided at the upper part of the passage 7 and having a front-low and rear-high inclination, the connecting rod 59 rises, and the connecting rod 59 disengages from the insertion pipe 60. Then, receiving the wind flowing in from the opening at the front end of the main body 28, the opening and closing doors 36, 37 are forcibly opened.

[0048] As described above, the wind power generator 1 is configured such that the generator 4 is linked and connected to the wind tunnel body 6 that reciprocates between the upwind side and the downwind side, and opening and closing doors 36 and 37 are provided to be openable and closable at the opening of the hollow wind tunnel body 6. When the wind tunnel body 6 moves to the upwind side, the opening and closing doors 36 and 37 close the opening, and the wind tunnel body 6 is moved from the upwind side to the downwind side by the wind force. When the wind tunnel body 6 moves to the downwind side, the opening and closing doors 36 and 37 are opened, and the wind tunnel body 6 is moved from the downwind side to the upwind side with the opening and closing doors 36 and 37 open.

[0049] Therefore, in the wind power generator 1 having the above configuration, the wind tunnel body 6 can be smoothly reciprocated between the upwind side and the downwind side, and power generation can be performed well.

[0050] In addition, the wind power generator 1 is provided with a windbreak plate 38 that is linked and connected to the opening and closing doors 36 and 37 of the wind tunnel body 6 so as to be able to be erected and tilted. When the wind tunnel body 6 moves to the upwind side, the windbreak plate 38 is erected by the wind force, and accordingly, the opening and closing doors 36 and 37 close the opening.

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

[0052] In addition, the wind power generator 1 is configured such that when the wind tunnel body 6 moves to the upwind side and the opening and closing doors 36 and 37 close the opening, the opening and closing doors 36 and 37 are locked, and when the wind tunnel body 6 moves to the downwind side, the opening and closing doors 36 and 37 are unlocked, and the opening and closing doors 36 and 37 are opened by the wind force.

[0053] Therefore, in the wind power generator 1 having the above configuration, the opening and closing doors 36 and 37 can be automatically opened by effectively utilizing the wind force without providing separate power.

Explanation of Reference Numerals

[0054] 1 Wind power generator 2 Drive machine 3 Linkage mechanism 4 Generator 5 Wind tunnel 6 Wind tunnel body 7-way path 8, 9 side walls 10 ceiling 11 rod 12 crankshaft 13 transmission shaft 14 rotating shaft 15 bearing 16 crank piece 17 drive gear 18 driven gear 19 transmission gear 20 interlocking gear 21 rotating gear 22 power generation gear 23 flywheel 24 auxiliary gear 25 auxiliary motor 26 motor gear 27 clutch 28 main body 29 wheel 30 bottom plate 31, 32 side walls 33 ceiling 34 support pillar 35 rib 36, 37 opening / closing door 38 wind shield plate 39 closing door mechanism 40 opening door mechanism 41, 42 rotating shaft 43 drive shaft 44 driven shaft 45, 46, 47 bearings 48 ratchet gear 49 ratchet pawl 50 hammer for wind shield plate 51 drive gear 52 driven gear 53 interlocking gear 54 rotating gear 55 upper wind guide 56 support pipe 57 hammer for opening / closing door 58 connecting body 59 connecting rod 60 insertion pipe 61 lower wind guide

Claims

【Claim 1】 In a wind power generation device in which a generator is interlockingly connected to a wind tunnel body that reciprocates between an upwind side and a downwind side via an interlocking mechanism that transmits the reciprocating motion of the wind tunnel body to the generator, a plurality of crank pieces are formed at equal intervals in the rotational direction of the crankshaft of the interlocking mechanism, and the wind tunnel body is connected to each crank piece, an opening / closing door is provided so as to be openable and closable at the opening of the hollow wind tunnel body, and a door closing mechanism for closing the opening / closing door and a door opening mechanism for opening the opening / closing door are provided in the wind tunnel body. When the wind tunnel body moves to the upwind side, the opening is closed with the opening / closing door using the door closing mechanism, and the wind tunnel body is moved from the upwind side to the downwind side by the wind force, thereby rotating the crankshaft. When the wind tunnel body moves to the downwind side, the opening / closing door is opened using the door opening mechanism, and the wind tunnel body is moved from the downwind side to the upwind side by the rotation of the crankshaft with the opening / closing door open, A wind power generation device characterized in that the crankshaft rotates due to the reciprocating movement of a plurality of wind tunnel bodies, and power generation is performed by a generator.

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