JP2008121663A - Wind power generator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a simple-structured and easily assembleable wind power generator. <P>SOLUTION: The wind power generator is equipped with a metal frame 12 formed in a box shape, a plurality of wheels 26 that are vertically opposed, a rotating shaft 16 for coupling each of central axes of the wheels 26, a plurality of blades 30 fixed at equal intervals to the wheel 26, a transmission 34 coupled to one end of the rotating shaft 16, a generator 36 coupled to the transmission 34 and that generates power by receiving rotation of the rotating shaft 16, and a battery 24 connected to the generator 36 for storing electric power generated by the generator 36. The generator 36 is an alternator for an automobile, and a resin product such as a rain gutter is used for the blades 30. A plurality of units may be stacked with the frame 12 and the rotating shaft 16 coupled, in which a unit is a combination of the frame 12 and a pair of wheels 26, and the rotating shaft 16 coupling the wheels 26. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a vertical wind turbine generator in which a rotating shaft with a blade is arranged so as to face a vertical direction.

  2. Description of the Related Art Conventionally, a wind turbine generator is known that has a horizontal axis type in which a blade is formed in a propeller shape and is provided on a rotating shaft that extends in the horizontal direction. The horizontal axis type is generally one with a narrow blade width and a small number of blades, and the cross section of the blade is shaped like an airplane wing to generate lift, and the generator can be rotated at high speed Yes. Further, in the horizontal axis direction, in the vicinity of the end opposite to the propeller, a vertical tail-shaped direction plate or the like is provided as an azimuth control mechanism for aligning the blade surface with the wind direction. However, the horizontal axis wind power generator that rotates a large propeller with wind power has a problem that it is large in scale and costly, and that it cannot effectively generate power unless the wind is relatively strong.

  Therefore, as a windmill that can rotate even in a weak wind, a vertical axis type in which a rotation axis is formed in a vertical direction and a vertically long blade is provided is known. The vertical axis type is formed so as to be able to rotate regardless of the direction of the wind, and the Darius type and the gyromill type using the lift of the blade are known. In addition, a Savonius type and a cross flow type using drag generated in the blade are also known.

For example, Patent Document 1 discloses a wind turbine generator in which a generator is connected to a wind turbine formed in a vertical axis. Further, Patent Document 2 discloses a wind turbine generator that generates power with a drum-type windmill in which a guide plate is radially fixed between circumferential portions of a disc and a wind-receiving drum having a space in the center is provided.
JP 2005-337245 A JP-A-2005-54695

  However, in patent document 1, since the structural member which forms a wind power generator uses the material formed exclusively, it was expensive. Moreover, in patent document 2, since the structure of the wind-receiving drum is complicated and a structural member is also formed by a special member for exclusive use, it was expensive. In addition, because of its complicated structure, it is heavy and cumbersome to carry, and it is not easy to assemble.

  The present invention has been made in view of the above-described conventional technology, and an object thereof is to provide a wind power generator that has a simple structure and can be easily assembled.

  The present invention includes a frame formed in a box shape, a plurality of wheels for bicycles facing each other, a rotation shaft that connects the central axes of the wheels, and a plurality of wheels that are fixed at equal intervals across the wheels. A blade, a transmission connected to one end of the rotating shaft, a generator connected to the transmission and generating electric power upon receiving rotation of the rotating shaft, and connected to the generator and generated by the generator A wind power generator provided with a battery for storing electric power.

  The generator is a DC output type generator including a rectifier regulator circuit, for example, an alternator for an automobile.

  Further, the frame includes a plurality of wheels, and a rotating shaft that connects the wheels, and a reinforcing ring that holds the blade is provided between the wheels. A wind power generator in which the frame and the plurality of wheels, and a rotating shaft that connects the wheels as one unit, the frame and the rotating shaft are connected, and a plurality of units are stacked may be used.

  In addition, the frame includes a pair of upper and lower wheels and a rotating shaft that connects the wheels as a unit, and includes a movable carriage on which the unit can be placed. A possible wind power generator may be used. The wheel is a bicycle wheel, and the blades are fixed to the outside of the wheel.

  According to the wind power generator of the present invention, since it is formed from a bicycle wheel or an automobile alternator, it is inexpensive and easy to assemble. Furthermore, since it is lightweight, it can be easily transported, and ready-made products, used products, waste materials, etc. can be used, so that resources can be used effectively and it is environmentally friendly. Further, the wind power generator of the present invention has a simple structure and can be moved arbitrarily, so that it can be used for grounding as a test, and can easily be installed appropriately. .

  Hereinafter, a first embodiment of a wind turbine generator according to the present invention will be described with reference to FIGS. As shown in FIG. 1, in the wind power generator 10 of this embodiment, for example, a base portion 14 in which a frame 12 in which a cross section of L-shaped steel material, wood, a resin bar or the like is formed in a box shape is installed on the ground or the like. Is erected. As shown in FIG. 2, the frame 12 is provided with a bearing portion 20 provided on the upper surface support member 18 of the frame 12 and a bearing portion 24 provided on the lower support member 22 below the frame 12. Both end portions of the rotary shaft 16 are rotatably supported by bearing portions 20 and 24, respectively. For example, bicycle wheels 26 are attached to the vicinity of both ends of the rotating shaft 16 via hubs 26a.

  The spokes 28 are partially removed from each wheel 26 at predetermined intervals, and the blades 30 are fixed. The blade 30 is formed by, for example, cutting a rain gutter having an arc-shaped cross section into a predetermined length. A polyester resin may be applied to the surface of the blade 30 for reinforcement. Then, both end portions of the blade 30 are respectively fixed by screws or the like in holes (not shown) of the rim 26b from which the spokes 28 are removed, thereby forming a vertical wind turbine 32.

  Further, the concave surface of the blade 30 has an opening surface positioned along the radial direction with the rotation axis 16 as the center, and is fixed rotationally symmetrical at each predetermined rotation angle. For example, since the number of spokes 28 provided on the bicycle wheel 26 is 36, the spokes 28 are pulled out every four, and nine blades 30 are fixed instead.

  The lower end portion of the rotary shaft 16 supported by the bearing portion 24 provided on the lower support member 22 is rotated by the speed increasing transmission 34 fixed to the fixing member 34 a provided on the lower support member 22. It is connected to the shaft. A generator 36 is connected below the transmission 34. The generator 36 is supported by a support member 38 formed on the frame 12 via an attachment member 40. For example, an alternator for an automobile can be used as the generator 36. An alternator for an automobile generally includes a contact-type or IC-type rectifier regulator circuit 36a, and the generated AC current is converted into a DC current by the regulator circuit 36a and output. A battery 42 is placed in the vicinity of the generator 36, and the generator 36 and the battery 42 are connected to each other by an electric wire 44 so as to be charged. FIG. 2 shows a state where two blades 30 are mounted symmetrically.

  Next, operation | movement of the wind power generator 12 of this embodiment is demonstrated. When wind blows on the wind turbine generator 12, each blade 30 of the windmill 32 receives wind pressure, and the blade 30 with the concave surface of the blade 30 facing the windward receives stronger wind resistance. Rotate around. The rotation of the windmill 32 is transmitted to the transmission 34 through the rotating shaft 16, and the increased rotational force is transmitted to the generator 36. When the generator 36 is an alternator used in an automobile, power generation is not performed at a predetermined number of revolutions or less, for example, 800 rpm or less. Therefore, the speed is increased by a transmission so as to be about 800 rpm or more. The electricity generated by the generator 36 is rectified via the regulator circuit 36 a and charged to the battery 42.

  According to the wind power generator 10 of this embodiment, since it is formed by using a generator wheel 36 such as a bicycle wheel 26 which is a mass-produced product or an automobile alternator, the member cost is low and the structure is simple. It is lightweight and easy to carry. Furthermore, the used parts can use the wheel 26 and the generator 36 of a used article or a waste material, and use resources effectively, and are environmentally friendly. In addition, although wind power always fluctuates, since an alternator of an automobile is used for the generator 36, it is resistant to fluctuations in the rotational speed, and fluctuations in power generation are absorbed by the regulator circuit 36a, and the battery 42 is stably charged. Is. Further, when the wheel 26 is used for a rear wheel of a bicycle, a free wheel mechanism is built in the hub 26a, so that the rotational force is transmitted only in one direction determined by the direction of the blade 30, and for some reason it is reversed. Even if the rotational force in the direction is applied, it will only idle.

  Further, if the battery 42 is in a usable state, it is possible to effectively use resources by reusing the waste material used in the automobile.

  Moreover, as shown in FIG. 3, you may form so that the windmill 32 provided in the flame | frame 12 may be piled up vertically as one unit. At this time, the frame 12 is integrally connected by a connecting member (not shown), and the rotary shaft 16 is also integrally connected by a connector 16a. Furthermore, the blade 30 of each windmill 32 formed from the rain gutter can be connected by using a connecting member 30a for connecting the rain gutter. As a result, the cost is reduced, and the reuse of the waste material is an effective use of resources, which is even better. Moreover, the rotating shaft 16, the frame 12, and each blade 30 may be integrally formed. FIG. 3 shows a state where two blades 30 are mounted symmetrically.

  Next, a second embodiment of the present invention will be described with reference to FIGS. Here, the same members as those in the above embodiment are denoted by the same reference numerals, and the description thereof is omitted. As shown in FIG. 4, the wind power generator 10 of this embodiment is placed on a movable carriage 50 and is configured to be movable. As shown in FIG. 5, the movable carriage 50 is formed in a rectangular frame shape from a metal construction material. Three structural members are integrally formed on both short sides, and a carriage portion 52 is formed. Is formed. Universal wheels 54 are provided at the four corners of the lower surface of the carriage unit 52, respectively, and a reinforcing material 56 is provided in the lateral direction at the center position in the longitudinal direction of the carriage unit 52. A triangular metal plate 57 is attached to each corner located inside by welding or the like, and a first stacking portion 58a and a second stacking portion 58b are formed. Further, on the upper surface in the vicinity of each corner portion of the first stacking portion 58a and the second stacking portion 58b to which the triangular metal plate 57 is attached, a metal locking portion 60 having a U-shaped cross section is provided on the opening side. Are respectively erected by welding or the like toward the inside of the carriage unit 52. Further, a traction portion 62 having a rectangular opening is formed on the outer side of one end edge in the longitudinal direction by a metal structural material or the like, and is provided so as to be able to be pulled by an automobile substantially flush with the carriage portion 52. Yes.

  In this method of using the wind turbine generator 10, first, the wind turbine generator 10 is mounted on the first stacking portion 58 a or the second stacking portion 58 b of the movable carriage 50. At this time, the leg part of the frame 12 of the wind power generator 10 is placed at a position where it abuts on the inside of the locking part 60. When only one wind turbine generator 10 is placed, placing it on the first stacking portion 58a may stabilize the movement. Subsequently, one end of a tow rope or the like is tied to the towing unit 62 and the other end is tied to a car or the like to move to a destination where the wind power generator 10 is used. After arriving at the destination, the moving carriage 50 is fixed in a state where it is placed on the moving carriage 50, and power is generated. It is also possible to mount two wind power generators 10 on the moving carriage 50 and generate power by stacking them at the destination as shown in FIG.

  According to the wind turbine generator 10 of this embodiment, the wind turbine generator 10 is placed on the moving carriage 50 and can be easily moved by car, etc., and places where electricity is required, such as evacuation sites and event venues in the event of a disaster It can generate electricity.

  Next, a third embodiment of the present invention will be described with reference to FIGS. Here, the same members as those in the above embodiment are denoted by the same reference numerals, and the description thereof is omitted. As shown in FIGS. 6 and 7, the wind power generator 70 of this embodiment is installed in a frame 12 on a bearing portion 20 provided on an upper surface support member of the frame 12 and a base portion 72 below the frame 12. A bearing portion 24 is provided, and both end portions of the rotating shaft 16 are rotatably supported by the bearing portions 20 and 24, respectively. For example, four bicycle wheels 26 are attached to the rotary shaft 16 at predetermined intervals via hubs 26a. The bearing portion 24 is provided with a large-diameter pulley 64 and is connected to a small-diameter pulley 66 of the generator 36 by a belt 68 so as to be driven. 6 and 7 show a state where two blades 30 are mounted symmetrically.

  As shown in FIG. 8A, for example, six blades 30 are fixed to the outside of each wheel 26 at equal intervals. The blade 30 is formed, for example, by cutting a rain gutter having an arc-shaped cross section to a predetermined length. The blades 30 of the wind turbines 32 formed from rain gutters are connected to each other by a reinforcing ring 27 made of only a rim provided between the wheels 26. As shown in FIG. 8B, the reinforcing ring 27 has no spokes and fixes the blades 30 at equal intervals. As shown in FIG. 8, each blade 30 may be fixed using a rain gutter connector 74. The connecting tool 74 is fixed to the rim 26b with screws, and the connecting tool 74 and the blade 30 are also fixed with screws. Thereby, the blade 30 formed from the rain gutter is reliably connected and fixed, and the cost is reduced.

  According to this embodiment, the attachment of the blade 30 is easy, a larger torque can be obtained, and the number of sheets can be easily increased. Furthermore, since the height can be arbitrarily set and the strength can be increased, a small to large wind power generator can be easily designed as appropriate.

  In addition, the wind power generator of this invention is not limited to the said embodiment, The raw material and shape which form a blade can be set suitably, for example, about 36 blades are attached. Further, the size of the frame and blade, the rated output of the generator, and the like can be appropriately selected according to the amount of power generation and wind power. In addition, the size of the movable carriage can be set as appropriate according to the wind power generator to be used.

It is a schematic plan view which shows the wind power generator of 1st embodiment of this invention. It is a schematic side view which shows the wind power generator of this embodiment. It is a schematic side view which shows the state which added the windmill of the wind power generator of this embodiment to two. It is a schematic side view which shows the movement substitute vehicle which moves the wind power generator of 2nd embodiment of this invention. It is a schematic plan view which shows the moving trolley which moves the wind power generator of this embodiment. It is a schematic front view which shows the wind power generator of 3rd embodiment of this invention. It is a schematic side view which shows the wind power generator of this embodiment. It is the top view (a) which shows the wheel of the wind power generator of this embodiment, and the top view (b) which shows a reinforcement ring.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Wind power generator 12 Frame 16 Rotating shaft 26 Wheel 28 Spoke 30 Blade 32 Windmill 34 Transmission 36 Generator 42 Battery

Claims (5)

  A frame formed in a box shape, a plurality of wheels opposed to each other, a rotation shaft connecting the central axes of the wheels, a plurality of blades fixed at equal intervals across the wheels, and the rotation shaft A transmission coupled to one end of the transmission, a generator coupled to the transmission and generating electric power upon receiving rotation of the rotating shaft, and a battery connected to the generator and storing electric power generated by the generator. Wind power generator characterized by that.   The wind power generator according to claim 1, wherein the generator is a DC output type generator including a regulator circuit for rectification.   The wind turbine generator according to claim 1, further comprising: a rotating shaft that connects the frame, the plurality of wheels, and the wheels, and a reinforcing ring that holds the blade is provided between the wheels.   The frame, a plurality of wheels, and a rotating shaft that connects the wheels as a unit, a movable carriage on which the unit can be placed, and one or a plurality of the units can be placed to generate power. The wind power generator according to claim 1. The wind power generator according to claim 1, wherein the wheel is a bicycle wheel, and the blades are fixed to the outside of the wheel.

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