KR100677779B1 - A wind power generating apparatus using magnetic force - Google Patents

Abstract

A wind power generating apparatus using a magnetic force is provided to improve power generation efficiency by preventing frictional forces caused due to the weight of blades of a windmill unit. A wind power generating apparatus using a magnetic force, comprises a rotating shaft(121); a lower magnet(120) coupled on the top of the rotating shaft; a wind mill unit(140) coupled to the center of the rotating shaft; a rotating shaft side gear(125) coupled to one side of the rotating shaft; a generator side gear(151) engaged with the rotating shaft side gear; a generator(150) rotated by the generator side gear so as to generate power; an upper magnet(110) connected to the lower magnet so that opposite poles face each other to generate an attractive force by magnetic induction; and a fixing frame for fixing the upper magnet onto ground. The wind mill unit includes a lower rotating plate(146) coupled onto the rotating shaft side gear; an upper rotating plate(145) interlocked with the lower magnet; and a plurality of blades for connecting the lower rotating plate and the upper rotating plate. The blades include a plurality of plates for dividing the blades. The plates are recessed to increase the wind power generated when wind collides against the blades of the wind mill unit.

Description

A wind power generating apparatus using magnetic force

1 is a perspective view of a wind generator according to a first embodiment of the present invention.

2 is a side view of a wind generator according to a first embodiment of the present invention.

3 is a perspective view of main parts of a windmill blade according to a first embodiment of the present invention;

4 is a detailed cross-sectional view of the rotating shaft and the fixed shaft according to the first embodiment of the present invention.

5 is a perspective view of main parts of a windmill blade according to a second embodiment of the present invention.

6 is a perspective view of a wind generator according to the prior art.

7 is a side sectional view of a wind generator according to the prior art.

<Explanation of symbols for the main parts of the drawings>

10: wind generator 12: generator

20: power generation unit 30: wind direction indicator

100: wind generator 101: base frame

102: upper outer frame 103: upper inner frame

104: vertical frame 105: bearing support frame

109: rotating shaft side support frame 110: upper magnet

111: fixed shaft 112: fixed shaft side head

113 Fixed shaft side nut 120: Lower magnet

121: rotating shaft 122: rotating shaft side head

125: rotation shaft side gear 126: lower bearing

130: upper bearing 140: windmill

141: Windmill Wing 142: Speed Baffle

145: upper rotating plate 146: lower rotating plate

150: generator 151: gear on the generator side

The present invention relates to a wind power generator using a magnetic force, there is no reduction in the amount of power generation according to the load of the windmill, the power generation efficiency is high and can be installed in a narrow space, and relates to a wind generator that is not affected by the direction of the wind.

In order to produce electricity, thermal power generation using heat generated by burning fossil fuels such as petroleum and coal is mainly used.

Since thermal power generation has to be constructed far from large cities, which are the demand for electricity due to pollution, etc., not only does it cost a lot of power to the power transmission facilities, but also causes problems of low efficiency due to leakage current generated during power transmission. . In addition, the price of fossil fuel steadily rises, there is a problem of poor economic efficiency.

As a means to replace the thermal power generation, a power generation method using natural forces such as sunlight, wind, tidal power, etc. has been proposed.

Among these, wind power generation using wind is highly useful because it is not significantly affected by the terrain.

Wind power generation requires structures to support large windmill wings. Therefore, when a large site is required and the wind does not blow in a certain direction, there is a problem of poor power generation efficiency.

In order to solve the problem of wind power generation using such a general large windmill wings, a wind generator as shown in FIGS. 6 and 7 has been proposed.

Figure 6 is a perspective view of a wind generator according to the prior art, Figure 7 is a side sectional view of the wind generator according to the prior art.

As shown, the wind power generator 10 according to the prior art is configured to be installed in the power generation unit 20 for receiving the wind on the top of the fixing (11).

The fixed stand 11 is responsible for mounting the components of the wind power generator 10 and fixing to the ground.

The power generation unit 20 is rotatably installed inside the windmill blade 21. Rotation of the windmill vanes 21 rotates the rotary gear 23 and generates electricity by rotating the power generation gear 13 of the generator 12 via the upper transmission gear 24 and the lower transmission gear 26. .

The wind direction indicator 30 is installed at the upper portion of the power generation unit 20 to rotate the exposed portion of the windmill blade 21 according to the wind direction.

Since the wind generator 10 having such a configuration does not use a large blade, it is easy to install in mountainous regions such as islands, and the wind power generator 10 can be rotated according to the wind direction to secure an optimal amount of power generation.

However, when the wind generator 10 according to the prior art changes the wind direction from time to time, the use of the wind generator 10 has to be changed because of the inconvenience of use.

In addition, due to the weight of the windmill blade 21, there is a problem that the power of the wind is consumed a lot of friction force, the power generation efficiency is bad.

The present invention has been drawn to solve the problems according to the prior art described above, and an object of the present invention is to provide a wind generator capable of generating power regardless of the wind direction.

Another object of the present invention is to provide a wind generator that is easy to install and move, easy to apply to mountainous backlands such as islands, and can be used as a portable generator as needed.

Still another object of the present invention is to provide a wind power generator having high power generation efficiency by minimizing frictional force caused by the weight of the windmill blade.

In order to achieve the above object, a wind power generator using a magnetic force according to an embodiment of the present invention, a rotary shaft, a lower magnet coupled to the upper portion of the rotary shaft, a windmill unit coupled to the central portion of the rotary shaft, coupled to one side of the rotary shaft Rotation shaft side gear, the generator-side gear meshed with the rotation shaft-side gear, the generator rotated by the generator-side gear to generate power, the upper pole is connected so that different poles face the lower magnet to generate an attraction force by magnetic induction It may include a fixing frame for fixing the magnet and the upper magnet to the ground.

In the present invention, the windmill unit has a lower rotary plate coupled to the upper than the rotary shaft side gear in the rotary shaft, an upper rotary plate linked to the lower magnet in the rotary shaft, and a plurality of windmill wings interconnecting the lower rotary plate and the upper rotary plate It may include.

In the present invention, the windmill wings, the windmill wings are composed of a plurality of plates for distinguishing the windmill wings so that a plurality of plates are combined, the plates are concave shape as a whole to increase the wind power that the wind hit the windmill wings. To be bent to be coupled to, the central plate is located in the middle of the plate to reduce the amount of wind that hits the windmill wings to form a speed preventing plate to prevent the windmill wings are overspeed, the part of the middle plate The speed limit plate may be moved upwards or the speed limit plate may be moved outward from the center of the windmill blade to prevent overspeed.

In the present invention, the speed preventing plate, which is movable outward from the center of the windmill blade, may be coupled to slide outward from the center by centrifugal force.

In the present invention, when the wind speed is weak, one side is connected to the windmill wings and the other side is an elastic member connected to the speed limit plate so that the speed limit plate moved out of the center when the wind is weak. .

In the present invention, one side of the speed preventing plate is coupled to the speed preventing plate so that the speed preventing plate is not displaced according to the wind direction, wind speed, the other side of which is coupled to the plate coupled to the speed preventing plate is further May be included.

In the present invention, further comprising an upper bearing rotatably coupled to the outer circumference of the lower magnet, a lower bearing rotatably coupled to the lower outer circumference of the rotating shaft, and a rotation shaft side support frame for fixing the lower bearing relative to the ground. Can be.

In the present invention, the fixed shaft side head fixed to the fixed frame and the rotating shaft side head is installed in the rotating shaft may be formed in a hemispherical or polygonal horn shape in order to reduce the friction generated during rotation.

In the present invention, the lower rotating plate and the upper rotating plate in order to reduce the weight of its own, the surface that is not in contact with the windmill blades may be formed with an open groove.

In the present invention, the attraction force between the upper magnet and the lower magnet may be greater than the load force of the weight hanging on the upper magnet.

In the following, embodiments of the present invention are described with reference to the accompanying drawings.

In the following description of the present invention, if it is determined that detailed descriptions of related known functions or configurations may unnecessarily obscure the subject matter of the present invention, the detailed description will be omitted. In addition, the terms to be described later are terms set in consideration of functions in the present invention, and these terms may vary according to the intention or custom of the producer producing the product, and the definition of the terms should be made based on the contents throughout the present specification.

(First embodiment)

Hereinafter, a configuration of a wind generator using magnetic force according to a first embodiment of the present invention will be described with reference to FIGS. 1 to 4.

1 is a perspective view of a wind generator according to a first embodiment of the present invention, FIG. 2 is a side view of a wind generator according to a first embodiment of the present invention, and FIG. 3 is a windmill vane according to a first embodiment of the present invention. Is a perspective view of the main part, and FIG. 4 is a detailed sectional view of the rotating shaft and the fixed shaft according to the first embodiment of the present invention.

As shown, the wind generator using a magnetic force according to an embodiment of the present invention (100: Unless otherwise described below, "wind generator using magnetic force" will be referred to simply as "wind generator").

In addition, the fixed frame is assumed to include a basic frame 101, the upper outer peripheral frame 102, the upper inner peripheral frame 103, the vertical frame 104.

In the present invention, the lower magnet 120 is coupled to the upper portion of the rotary shaft 121 is coupled to the windmill unit 140 of the wind turbine 100, the outer periphery of the fixed shaft 111 coupled to the base frame 101 The upper magnet 110 is coupled.

The hemisphere-shaped fixed shaft side head 112 and the rotating shaft side head 122 are coupled to the rotating shaft 121 and the fixed shaft 111 by a magnetic force to be rotatably coupled.

The rotating shaft side head 122, which is the upper end of the rotating shaft 121, is formed in a hemispherical shape. The rotating shaft side head 122 is magnetically coupled to the fixed shaft side head 112 and is formed in a hemispherical shape in order to minimize the friction force generated during rotation.

However, the present invention is not particularly limited thereto, and it should be noted that the rotation shaft side head 122 may be formed in a polygonal horn shape if necessary. This may also be applied to the fixed shaft side head 112 to be described later.

The lower magnet 120 is coupled to the lower portion of the rotating shaft side head 122, so that magnetic induction occurs in the rotating shaft side head 122.

The outer circumference of the lower magnet 120 is coupled to the upper bearing 130 to eliminate the friction generated during the rotation of the rotary shaft 121, the upper bearing 130 is a heavy object (lower magnet hanging on the upper magnet 110) 120, the windmill 140, the rotating shaft side gear 125, etc.) to prevent shaking in the wind direction.

The windmill 140 is coupled to the central portion of the rotation shaft 121. Windmill unit 140 is composed of a lower rotary plate 146, the upper rotary plate 145 and the windmill blade 141. The windmill 140 receives the wind power to rotate the rotating unit (rotation shaft 121, the rotating shaft side gear 125).

The lower rotating plate 146 and the upper rotating plate 145 are coupled to the rotating shaft 121 and used to fix the windmill blade 141. In addition, the lower rotary plate 146 and the upper rotary plate 145, in order to reduce the weight of itself, the surface that is not in contact with the windmill blade 141 is preferably formed with an opening groove.

The windmill blade 141 is combined with three plates bent in the horizontal direction to form one wing, in this embodiment three wings are used.

However, the present invention is not particularly limited thereto, and it should be noted that four or more plates or semi-circular plates may be used, and two or four wings may be used.

The middle plate of the three plates is a speed preventing plate 142, the part of which is detachably coupled. The speeding prevention plate 142 is removed when the strength of the wind is strong, thereby preventing the wind generator 100 from falling or damaging the windmill 140.

At this time, the removal groove 147 is formed in the upper rotating plate 145, without removing the windmill 140, the speed preventing plate 142 can be removed through the removal groove 147.

The rotary shaft side gear 125 is coupled to the lower part of the windmill 140 of the rotary shaft 121. The rotary shaft side gear 125 meshes with the generator side gear 151 to be described later, so that the generator 150 generates electricity.

The lower bearing 126 is coupled to the end of the rotating shaft 121. The lower bearing 126 reduces the friction generated at the time of rotation, and prevents the lower portion of the rotating shaft 121 from shaking in the windy direction in the same manner as the upper bearing 130 described above.

The lower bearing 126 is fixed to the ground or the like by the rotation shaft side support frame 109.

The fixed shaft side head 112, which is the lower end of the fixed shaft 111, is formed in a hemispherical shape. The fixed shaft side head 112 is magnetically coupled to the rotating shaft side head 122 and is formed in a hemispherical shape in order to minimize the friction force generated during rotation.

The upper magnet 110 is coupled to the outer circumference of the fixed shaft 111 to allow magnetic induction to occur in the fixed shaft side head 112.

The upper end of the fixed shaft 111 is coupled to the upper frame 103 of the base frame 101 by the fixed shaft side nut 113.

The base frame 101 includes a top inner circumferential frame 103, a top outer circumferential frame 102, a bearing support frame 105, and a vertical frame 104.

The upper inner circumferential frame 103 is used to fix the fixed shaft side nut 113 to the base frame 101.

The upper outer frame 102 is used to connect four vertical frames 104 to each other.

The bearing support frame 105 is used to fix the upper bearing 130 to the base frame 101.

The vertical frame 104 is used to fix the wind generator 100 to the ground or the like.

The generator side gear 151 meshes with the rotation shaft side gear 125 to transmit the rotational force generated by the windmill 140 to the generator 150.

The generator 150 generates electricity by the rotational force transmitted by the generator side gear 151. Although not shown, the electricity produced by the generator 150 may be stored through a capacitor or directly connected to an electric device or the like through an external connection cable.

(Operation example)

Hereinafter, the operation of the wind generator according to the embodiment of the present invention.

Prior to the description of the operation example, it is noted that the wind generator 100 according to the present embodiment does not act as a friction force on the lower portion of the weight of the rotating shaft 121 by the action of the upper magnet 110 and the lower magnet 120.

That is, the fixed shaft side head 112 magnetically induced by the upper magnet 110 and the rotating shaft side head 122 magnetically induced by the lower magnet 120 are attracted to each other by the attraction force of the magnetic force.

Accordingly, the windmill unit 140 and the rotating shaft side gear 125 connected to the rotating shaft 121 hardly generate friction force similarly to rotating in the air.

On the other hand, the upper bearing 130 and the lower bearing 126 according to the direction in which the heavy object (lower magnet 120, windmill 140, rotating shaft side gear 125, etc.) hanging on the upper magnet 110 is winded. To prevent shaking. The rotational efficiency is improved by eliminating frictional forces generated during rotation.

In the first step, when the wind blows, the windmill blade 141 rotates regardless of the direction of the wind. That is, since the windmill blade 141 is coupled to the rotary shaft 121 in an open state on all four sides, the windmill blade 141 rotates regardless of wind blowing from any direction.

In the second step, the windmill blade 141 rotates without losing the frictional force according to the mass of the rotating shaft 121 to which the windmill 140 is coupled.

In the third step, the rotating shaft side gear 125 rotates as the rotating shaft 121 rotates.

As the fourth step, the rotary shaft side gear 125 rotates, the generator-side gear 151 engaged thereto rotates, whereby the generator 150 produces electricity by electromagnetic induction.

On the other hand, when the wind blows strongly, the windmill 140 may rotate at a higher rotation speed than the predetermined limit rotation speed. In this case, the windmill 140 may be damaged or the wind generator 100 may fall.

In order to prevent this, when the wind blows strongly, the user (or manager) separates the speed preventing plate 142 of the windmill 140 from the windmill blade 141.

As a result, the wind leaks through the space where the speed preventing plate 142 is located, and thus the rotation speed of the windmill 140 may be adjusted to be lower than the limit rotation speed. At this time, it is preferable that the speed limit plate 142 is separated from all the windmill blades 141. That is, when three windmill blades 141 are used, when the speed preventing plate 142 is separated from only one windmill blade 141, the rotation center of the windmill 140 is directed to one side and the windmill 140 This is because there is a risk of rotating while vibrating. However, it is noted that when four windmill wings 141 are used, the speed preventing plate 142 may be separated from the two windmill wings 141 facing each other.

Second Embodiment

Hereinafter, a wind power generator according to a second embodiment of the present invention will be described with reference to FIG. 5.

5 is a perspective view of main parts of a windmill blade according to a second embodiment of the present invention.

As shown in FIG. 5, the windmill unit 240 according to the second embodiment of the present invention is configured such that the speeding preventing plate 242 is coupled to slide outward from the center by the centrifugal force with respect to the windmill vane 241. It has the same structure as in the first embodiment.

That is, the speed preventing plate 242 is coupled to slide by the centrifugal force, one side is connected to the windmill wing 241 so that the speed preventing plate 242 moved out of the center can be returned to its original position when the wind power is weak. And the other side is coupled to the elastic member 243 is connected to the speed preventing plate 242.

In addition, the speed preventing plate 242, the support plate 244 is further included on one side of the speed preventing plate 242 so as not to be affected by the wind direction.

The speed limiting plate 242 maintains its original position by the elasticity of the elastic member 243 when the wind power is weak so as to achieve the optimum wind power generation efficiency.

On the other hand, when strong wind is generated and the rotating part is strongly rotated, the centrifugal force applied to the speed preventing plate 242 is increased, and when the centrifugal force is greater than the tin force of the elastic member 243, the speed preventing plate 242 is centered. It slides outward to form a space.

Therefore, when the strong wind is acting, the wind is drawn out to the space created by the speed preventing plate 242 is operated, it is possible to prevent the damage of the windmill 240.

In addition, the speeding plate 242 is coupled to the support plate 244, so that the speeding plate 242 is not affected by the wind direction, wind speed.

That is, according to the direction in which the wind blows, in particular, when the wind is strong wind speed can be further sliding along the wind speed direction, the speed preventing plate 242, the speed preventing plate 242 is wind The blowing can be prevented from spreading along the direction.

The embodiments of the present invention have been described above with reference to the accompanying drawings. However, it is to be noted that the present invention is not particularly limited only to the above-described embodiments, and that various modifications and changes can be made by those skilled in the art within the spirit and spirit of the appended claims as necessary.

As described above, according to the present invention, the windmill may be installed in an open state to provide a wind generator capable of generating power regardless of the wind direction.

In addition, according to the magnetic induction of the upper magnet and the lower magnet, the rotating shaft is rotated in a state suspended by the magnetic force on the fixed shaft, the friction force according to the weight of the windmill blades does not occur can provide a wind power generator with high power generation efficiency.

In addition, the speed limit plate is detachably coupled so that the wind generator is not damaged even in strong winds.

On the other hand, when the speed limit plate is configured to be operated manually, the structure is simple and the manufacturing cost is low, and the speed limit plate is slidably coupled to the plate by centrifugal force, so that the speed limit plate automatically operates according to the strength of the wind. In the case of the configuration to be possible, there is an advantage that it is easier to use than removing the speed limit plate manually.

In addition, the speeding plate is coupled to the support plate, it is possible to prevent the speeding plate to spread along the wind direction, it is possible to prevent damage to the elastic member and the speeding plate.

In addition, an upper bearing rotatably coupled to an outer circumference of the lower magnet and a lower bearing rotatably coupled to a lower outer circumference of the rotating shaft may further include reducing frictional forces generated during rotation to increase rotation efficiency. And the rotation part is prevented from shaking in the windy direction.

 In addition, the fixed shaft side head fixed to the fixed frame and the rotating shaft side head is installed in the rotating shaft is formed in a hemispherical or polygonal horn shape can reduce the friction force generated during rotation.

In addition, the lower rotary plate and the upper rotary plate is formed to have an open groove on the surface that is not in contact with the windmill blades to reduce the weight of itself as well as to reduce the friction generated during the rotation.

In addition, when the upper magnet has a magnetic force of more than twice the magnetic force of the lower magnet it is possible to stably maintain the load suspended in the lower magnet.

In addition, the magnetic force of the upper magnet and the lower magnet is formed to be greater than the load force of the heavy material hanging on the upper magnet it is possible to stably maintain the load suspended on the lower magnet.

Claims (11)

delete delete delete Rotation axis; A lower magnet coupled to the upper portion of the rotating shaft; A windmill coupled to a central portion of the rotating shaft; A rotating shaft side gear coupled to one side of the rotating shaft; A generator side gear engaged with the rotation shaft side gear; A generator which is rotated by the generator side gear to generate electric power; An upper magnet connected to the lower magnet such that different poles face each other to generate attraction by magnetic induction; And Including; fixed frame for fixing the upper magnet to the ground; The windmill part A lower rotating plate coupled to an upper portion of the rotating shaft than the rotating shaft side gear; An upper rotating plate interlocked with the lower magnet in the rotating shaft; And And a plurality of windmill blades interconnecting the lower and upper rotor plates. The windmill wings, the windmill wings are composed of a plurality of plates for separating the windmill wings so that a plurality of plates are combined, the plates are bent to be concave shape as a whole in order to increase the wind force the wind hit the windmill wings. Wind power generator using a magnetic force, characterized in that coupled. According to claim 4, wherein the central plate is located in the middle of the plate to reduce the amount of wind hit the windmill wings to prevent the wind speed of the wind vane wings are formed, the speed preventing plate is a part of the central plate is The wind generator is moved to the top or the speed preventing plate is moved outward from the center of the windmill blade, characterized in that the speed is prevented, wind power generator using a magnetic force. The wind generator according to claim 5, wherein the speed preventing plate, which is movable outward from the center of the windmill blade, is coupled to slide outward from the center by centrifugal force. According to claim 6, The speed limit plate, one side is connected to the windmill blade and the other side is connected to the speed limit plate so that the speed limit plate moved to the outside when the wind is weak, the center further includes an elastic member Wind power generator using magnetic force, characterized in that the. The support plate of claim 7, wherein one side of the speed preventing plate is coupled to the speed preventing plate so that the speed preventing plate is not displaced according to the wind direction and the wind speed, and the other side thereof is coupled to the plate to which the speed preventing plate is coupled. A wind generator using magnetic force, characterized in that further included. The method according to any one of claims 4 to 8, Further comprising a top bearing rotatably coupled to the outer periphery of the lower magnet, and a lower bearing rotatably coupled to the lower periphery of the rotating shaft in order to reduce the friction force generated during rotation to increase the rotational efficiency, And a rotating shaft side support frame to fix the lower bearing to the ground. The method of claim 9, in order to reduce the friction generated during rotation, The fixed shaft side head fixed to the fixed frame and the rotating shaft side head installed on the rotating shaft are formed in a hemispherical or polygonal horn shape, or the lower rotating plate and the upper rotating plate are not in contact with the windmill vanes to reduce their weight. The surface is not characterized in that the open groove is formed, the wind power generator using magnetic force. 10. The wind power generator according to claim 9, wherein the attraction force between the upper magnet and the lower magnet is greater than the load force of the heavy material suspended on the upper magnet.

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