KR20090056280A - Windmill for a wind power aerogenerator - Google Patents

Abstract

A windmill for a wind power generator equipped with a variable type blade is provided to effectively proceed power generation using wind power by letting a blade to be folded and be spread easily depending on blowing direction. A windmill for a wind power generator equipped with a variable type blade comprises a case(110) rotating together a rotor shaft, combined to a rotor rotating shaft of a wind power generator, a blade(120) placed at regular interval along the circumference or length direction; and a drive member(130) rotating the blade in order to be spread and folded depending on the blowing direction. The blade is spread and folded by the intensity of wind.

Description

Windmills with variable wings {WINDMILL FOR A WIND POWER AEROGENERATOR}

The present invention relates to a wind turbine for a wind power generator having a variable wing capable of efficiently converting the force of the wind into mechanical energy, and more particularly, the wing of the rotating direction by the wing is folded or unfolded according to the direction of the wind Wing is located in the direction opposite to the direction of the rotation is wider and rotated to the wind relates to a windmill for a wind turbine having a variable wing that can improve the power generation efficiency by narrowing the area in contact with the wind.

In general, currently used power generation methods are widely used, such as thermal power generation using a large fossil fuel, nuclear power generation using uranium, and hydroelectric power generation requiring a large amount of fresh water. Since thermal power generation requires power generation by burning fuels such as coal or petroleum, a lot of combustion gas is generated to increase air pollution, and nuclear power generation does not emit combustion gases polluting the air, but a large amount of radioactive waste that is fatal to the human body is generated. It is discharged, hydroelectric power does not emit a combustion gas or radiation waste, etc. and does not require a separate fuel, while destroying the environment there is a problem that is not environmentally friendly. Recently, research on solar power generation and wind power generation, which are environmentally friendly and can use fuel permanently, has been conducted.

Wind power generation using dual wind power is a technology that obtains electric power by converting rotor into mechanical energy by using aerodynamic characteristics of kinetic energy of air flow. Are classified into a horizontal type and a vertical type according to the direction of the rotation axis with respect to the ground, and the main components include a rotor composed of a blade and a hub, a speed increaser for driving a generator by increasing the rotation of the rotor, a generator and various It consists of a control device for controlling safety devices, a hydraulic brake device, a power control device, and a steel tower.

In addition, wind power generation uses no-pollution and infinite wind scattered everywhere, so there is little effect on the environment, and the land can be used efficiently, and in the case of large-scale power generation facilities, power generation costs can compete with existing power generation methods. It is a level of new energy generation technology.

In such a wind generator, the windmill is converted into electrical energy by using kinetic energy rotated by the wind. At this time, the windmill theoretically converts about 60% of the kinetic energy of the wind into mechanical energy, which is then converted into electrical energy. Is converted to a lot of energy. Therefore, the conversion efficiency of converting wind energy into electrical energy is substantially different depending on the shape of the windmill, but it is only about 20 to 40%.

However, in the conventional wind power generation as described above, the wind is maintained at a constant speed or higher and the density of the air is high so that the kinetic energy of the wind is transmitted to the wings, and thus the windmill is rotated, thereby converting the kinetic energy of the wind into electrical energy. It is implied. In other words, when the wind is weak and the breeze blows, since the rotation of the windmill is weakened, the situation that the generation of wind power generation is impossible.

The present invention has been made to solve the conventional problems as described above, by installing the wings of the windmill to be folded or unfolded in accordance with the direction of the wind, so that the wings located in the direction of rotation of the windmill so that the area of contact with the wind is wider Unfolded, the wings located in the opposite direction of the rotation direction of the windmill is installed to be folded so as to narrow the area in contact with the wind is to provide a windmill for a wind turbine having a variable wing that can improve the power generation efficiency.

Wind turbine for a wind power generator having a variable wing according to an embodiment of the present invention to achieve the above object is coupled to the rotor shaft of the wind turbine and the rotor rotates with the shaft; Wings which are installed at regular intervals along the circumferential direction and the longitudinal direction of the case so that the case is rotated by the wind, and which are deployed and folded by the force of the wind; The wing is rotatably installed and is installed in the case, characterized in that it comprises a drive member for rotating the wing so that the wing is easily deployed and folded according to the wind direction.

Here, the wing is characterized in that one or two rotatably installed on the drive member.

In addition, the drive member is installed in the case, the bracket is attached to the blade rotatably through a hinge; A cylinder installed in the bracket and having a working space formed therein; A piston built in the working space and linearly reciprocating; A tension spring embedded in the working space so that the piston is elastically supported in the wing direction; One end is connected to the wing, the other end is characterized in that it comprises a link connected to the piston.

In addition, the drive member, characterized in that it further comprises an auxiliary drive unit to be able to quickly deploy and fold the wing according to the direction of the wind acting on the wing when the case is rotated.

In addition, the auxiliary dynamics, the drive cam is provided on one side of the cylinder; An auxiliary link having one end connected to the piston and the other end connected to the drive cam; It characterized in that it comprises a drive motor for driving the piston so that the piston reciprocates linearly by the rotation of the drive cam.

On the other hand, in order to achieve the above object, a wind turbine for a wind turbine having a variable wing according to another embodiment of the present invention, coupled to the rotor shaft of the wind turbine is rotated with the rotor shaft; A fixed wing coupled to the case; Rotating wing is rotatably installed on the fixed wing through the hinge, and is developed and folded by the force of the wind; It is installed in the case, characterized in that it comprises a drive means for rotating the pivoting wing so that the pivoting wing is easily deployed and folded according to the wind direction.

Here, the driving means, one side is coupled to the hinge and the other side of the operation rod is located inside the case; A rotating body having the same center of rotation as the rotor rotating shaft and having the rotating shaft penetrated therein; A guide groove is formed in the upper surface along the circumferential direction so that the operation rod is inserted, and is coupled to the rotating body. Is differently formed working cam; A driven gear coupled to one side of the rotating body; The driving gear meshed with the driven gear is characterized in that it comprises a drive motor coupled to the drive shaft.

According to the wind turbine for a wind turbine having a variable wing according to an embodiment of the present invention, the wing located in the direction in which the windmill is rotated is spread so that the area that is in contact with the wind is located in the opposite direction of the rotation direction of the windmill Since the wings are installed to be folded to narrow the area in contact with the wind, the wings of the windmill are folded or unfolded according to the direction of the wind, thereby improving the power generation efficiency.

The features and advantages of the present invention will become more apparent from the following detailed description based on the accompanying drawings. Prior to this, the terms or words used in the present specification and claims are defined in the technical spirit of the present invention on the basis of the principle that the inventor can appropriately define the concept of the term in order to explain his invention in the best way. It must be interpreted to mean meanings and concepts.

Hereinafter, with reference to the accompanying drawings, a windmill for a wind turbine having a variable wing according to embodiments of the present invention will be described in detail.

<First Embodiment>

First, with reference to FIGS. 1 to 6 will be described in detail a windmill for a wind turbine having a variable wing according to an embodiment of the present invention.

1 is a cross-sectional view showing a state in which a windmill for a wind turbine having a variable wing according to an embodiment of the present invention is installed, Figure 2 is a configuration of a windmill for a wind turbine having a variable wing according to an embodiment of the present invention Figure 3 is a perspective view, Figure 3 is a cross-sectional view showing the configuration of the blade and the drive member installed in the windmill according to an embodiment of the present invention.

1 to 3, the wind turbine includes a housing 10 installed on the ground, a generator 11 installed inside the housing 10, and one end thereof exposed to the side of the housing 10. It consists of the rotor rotary shaft 13 with which the generator 11 was equipped, and the windmill 100 couple | bonded with this rotor rotary shaft 13.

The windmill 100 is coupled to the rotor rotation shaft 13 and the case 110 is rotated together with the rotor rotation shaft 13, and the circumferential direction and the longitudinal direction of the case 110 so that the case 110 is rotated by wind The wing 120 and the drive member 130 for rotating the wings 120 so that the wings 120 are easily deployed and folded according to the wind direction.

The wing 120 is installed at regular intervals along the circumferential direction and the longitudinal direction of the case 110 so that the case 110 is rotated by the wind, and is expanded and folded by the force of the wind. To this end, the wing 120 is rotatably installed on the drive member 130 installed in the case 110, one or two are rotatably installed on the drive member 130.

The drive member 130 includes a bracket 131 installed on the case 110, a cylinder 133 installed on the bracket 131, a piston 135 installed inside the cylinder 133, and The tension spring 137 embedded in the cylinder 133 and one side is connected to the wing and the other side includes a link 139 connected to the piston 135.

One side of the bracket 131 is fixed to the case 110, and the wing 120 is rotatably attached to the center portion through a hinge (H).

The cylinder 133 has an operating space 133a formed therein so that the piston 135 and the tension spring 137 are installed, and the piston 135 is formed in the operating space 133a by the tension spring 137. Straight reciprocating movement. Specifically, when the front surface 121 of the wing 120 faces the windy direction, the wing 120 is rotated and unfolded while being rotated in the bracket 131 by the wind power, thereby being connected to the wing 120. As the link 139 is moved, the piston 135 is linearly moved in the working space 133a. That is, the area of the wing 120 that meets the wind is increased so that more wind power is transmitted to the windmill 100, the rotational force of the windmill 100 is increased. At this time, the tension spring 137 is compressed by the piston 135, and elastically supports the piston 135 in the direction of the blade (120).

And when the windmill 100 is rotated and the back 123 of the wing 120 is opened to face the wind blowing direction, the wing 120 in the bracket 131 by the elasticity of the wind and tension spring 137 It is quickly rotated and folded. Because of this, since the wind power transmitted to the blade 120 is lowered, the rotational force of the windmill 100 is increased.

In summary, among the wings 120 installed along the circumferential direction of the windmill 100, the wings 120 in which the front surface 121 of the wings 120 is positioned in the windy direction are expanded by the wind and are wider. Wind is transmitted to the site, at this time, the rear wing 123 of the wing 120 is located in the windy direction is the wing 120 is quickly folded by the wind and the tension spring 137 so that the wind contact The narrower the wind resistance, the less wind resistance. Due to this, the wing 120 is expanded and folded along the wind blowing direction, the area in contact with the wind is widened or reduced to further increase the rotational force of the windmill.

On the other hand, the wind turbine for a wind turbine having a variable wing according to the present embodiment is further provided with an auxiliary drive unit to expand and fold the wing in the direction of the wind, which will be described in detail with reference to FIGS. 4 and 5. do.

4 is a cross-sectional view showing a state in which the auxiliary drive unit is installed in the drive member according to an embodiment of the present invention, Figure 5 is a cross-sectional view showing a modified state of the auxiliary drive unit according to an embodiment of the present invention.

As shown in FIGS. 4 and 5, one side of the driving member 130 may rapidly deploy and fold the wing 120 according to the direction of the wind acting on the wing 120 when the windmill 100 is rotated. The auxiliary driving unit 140 is further provided to be.

The auxiliary drive unit 140 includes a base plate 141 fixed to the cylinder 133 of the drive member 130, a drive cam 143 rotatably mounted to the base plate 141, and a piston 135. ) And an auxiliary link 145 connecting the driving cam 143 and a driving motor 147 driving the driving cam 143.

The auxiliary driving unit 140, when the front surface 121 of the wing 120 is located in the windy direction, the drive motor 147 rotates the drive cam 143, whereby the auxiliary link 145 is moved piston The linear movement of the 135 pulls the link 139 which is connected to the wing 120. Then, while the wings 120 are folded, the wind power is transmitted to a wider portion.

And when the rear surface 123 of the wing 120 is located in the windy direction, the drive motor 147 is rotated in the opposite direction while rotating the drive cam 143 in the opposite direction, the auxiliary link 145, the piston 135 And the link 139 is interlocked so that the wing 120 is folded, the area where the wind is narrowed.

At this time, the auxiliary driving unit 140, the control unit 149 and the airflow sensor 149a is further provided to more effectively control the drive motor 147 according to the wind intensity. The airflow sensor 149a is attached to the front 121 and the rear 123 of the wing 120 so as to sense the strength of the wind blowing on the wing 120, and is detected by the airflow sensor 149a. The wind is received by the controller 149. The controller 149 rotates the driving motor 147 forward or reversely according to the wind volume received from the air flow rate sensor 149a. That is, when more wind is applied to the front surface 121 than the rear surface 123 of the wing 120, the drive motor 147 is rotated by the control unit 149 to expand the wing 120, and vice versa When more wind is applied to the rear surface 123 than the 121, the drive motor 147 is rotated by the controller 149 to fold the wing 120.

On the other hand, when the auxiliary link 145 of the auxiliary drive unit 140 moves the piston 135 by the drive of the drive cam 143, the driving force of the drive cam 143 is transmitted to the piston 135 more smoothly. One end is rotatably connected to the piston 135 through the cylinder 133 and the other end is rotatably connected to the drive cam 143, and the center portion thereof is rotatably formed.

As shown in FIG. 5, the auxiliary driving unit 140 according to the present embodiment may rotate the driving cam 143 using the hydraulic cylinder 150. To this end, the rotating shaft 151, one end of which is bent, is coupled to the center of the driving cam 143, and the rod 150a of the hydraulic cylinder 150 is rotatable through the hinge at the bent portion of the rotating shaft 151. It is connected.

On the other hand, the windmill 100 according to an embodiment of the present invention, one wing 120 may be installed, this will be described in detail with reference to FIG.

6 is a cross-sectional view showing a modified state of the windmill blades according to an embodiment of the present invention.

In describing a modified example of the wing 120 according to an embodiment of the present invention, the same reference numerals are used for the same and similar configurations as the embodiment, and a detailed description thereof will be omitted.

Referring to FIG. 6, the wing 120 according to the modified example is rotatably installed on the bracket 131 of the driving member 130, and the wing 120 may be smoothly deployed on the front surface of the bracket 131. Auxiliary wing 125 is attached so that. At this time, the auxiliary wing 125 is bent downward to the end so that the wing 120 can be easily deployed by the wind. This is to allow the wind to smoothly blow between the wing 120 and the auxiliary wing 125 through the bent portion of the auxiliary wing 125 when the wing 120 is folded.

Second Embodiment

Next, a windmill for a wind turbine having a variable wing according to another embodiment of the present invention will be described in detail with reference to FIGS. 7 to 10.

7 is a cross-sectional view showing a state in which a windmill for a wind turbine having a variable wing according to another embodiment of the present invention is installed, Figure 8 is a perspective view showing a wing of the windmill according to another embodiment of the present invention, Figure 9 is 10 is a perspective view illustrating an operation cam of a windmill according to another embodiment of the present invention, and FIG. 10 is a cross-sectional view illustrating an operation cam of a windmill according to another embodiment of the present invention.

In describing the windmill in another embodiment of the present invention, the same reference numerals are used for the same or similar components as those of the embodiment, and a detailed description thereof will be omitted.

7 to 9, the windmill 100 according to another embodiment of the present invention includes a case 110 coupled to the rotor rotation shaft 13 of the wind power generator, and a fixed wing coupled to the case 110 ( 127, a rotating blade 120 rotatably installed on the fixed blade 127, and a driving means 160 for driving the rotating blade 120.

Rotating blade 120 is rotatably installed on the fixed blade 127 through the hinge (H), it is deployed and folded in the fixed blade 127 by the wind.

One side of the fixed blade 127 is bonded to the outer surface of the case 110, the hinge protrusion (127a) is formed so that the rotation blade 120 can be easily coupled. The hinge protrusion 127a is divided so that the hinge H of the pivoting blade 120 can be easily inserted.

The driving means 160 is installed inside the case 110 to rotate the pivoting blades 120 so that the pivoting blades 120 can be easily deployed and folded according to the wind direction. To this end, the driving means 160, the operating rod 161 is coupled to the hinge (H) of the rotary blade 120, the rotor 163 is installed on the rotor shaft 13, and the rotor ( An actuating cam 165 installed in the 163, a driven gear 167 coupled to the rotating body 163, and a driving motor 169 driving the driven gear 167.

The operating rod 161 is fixed to the hinge (H) of the rotary blade 120 and the other side penetrates through the case 110 to contact the operation cam 165, the rotation of the operation cam 165 or windmill ( The rotary blade 120 is deployed and folded while being moved in contact with the operation cam 165 according to the rotation of 100.

The rotor 163 has the same center of rotation as the rotor rotation shaft 13 and the rotor rotation shaft 13 penetrates inward so as to rotate on the rotor rotation shaft 13. And the outer surface of the rotating body 163 is coupled to the operation cam 165 for rotating the operation rod 161, the lower side is coupled to the driven gear 167 connected to the drive motor 169. At this time, lubricating oil is injected or a bearing (not shown) is installed between the rotating body 163 and the rotor rotating shaft 13 so that the rotating body 163 can be smoothly rotated.

The drive motor 169 is coupled to the drive shaft is a driving gear (169a) meshing with the driven gear (167) to rotate the rotating body (163).

The operation cam 165 rotated together with the rotating body 163 has a guide groove 165a formed along the circumferential direction so that the other side of the operation rod 161 is inserted, and the guide groove 165a operates at a depth thereof. The cam 165 is formed differently along the circumferential direction. At this time, the operation rod 161 is attached to the roller 161a in contact with the guide groove 165a to be rotated when the guide rod 165a of the operation cam 165 is easily guided. On the other hand, a plurality of guide grooves (165a) are formed to insert a plurality of operation rods (161), respectively.

Windmill 100 for a wind power generator having a variable wing according to another embodiment of the present invention, when the operation cam 165 rotates in accordance with the direction of the wind, the operation rod 161 is a guide groove of the operation cam 165 ( While rotating along the 165a) while rotating by the height of the guide groove (165a) rotates the rotary wing 120. Therefore, when the front surface of the rotary wing 120 is located in the windy direction, the rotary wing 120 is deployed and the wind is transmitted to a wider area, and the rear surface of the rotary wing 120 is positioned in the windy direction. Rotating wing 120 is folded and the area where the wind is narrowed.

That is, the rotation wing 120 is expanded and folded by the position of the front and rear contact with the wind in the direction while the wind blowing direction in the direction of the wind is widened, in the opposite direction of the wind blowing Since the area of the rotary wing 120 in contact with the wind is reduced, the rotational force of the windmill 100 is further increased.

Meanwhile, referring to FIGS. 11 and 12, the wings of the windmill may be formed to receive greater force when the wind is blowing. Auxiliary ribs 129 are installed on the inner side of the wing 120, and the end portion thereof may be formed to be bent 120a toward the front to widen the area of the wind contacting the wing 120. That is, by the auxiliary rib 129 and the bent portion (120a) is transmitted more wind force to the wing 120, the rotational force of the windmill 100 is increased.

11 and 12, all of the pair of vanes 120 are rotated, but the lower vanes 120 are rotated so that only the vanes 120 having the bent part 120a are rotated, and the case of the windmill 100 is rotated. It may be fixed to 110. This is to allow the wing 120, the bent portion (120a) is formed by Barran when the lower wing 120 is fixed to receive more force.

What has been described above is only one embodiment for carrying out the present invention, and the present invention is not limited to the above-described embodiment, and the present invention is made without departing from the gist of the present invention as claimed in the following claims. Anyone with ordinary knowledge in this field will have the technical spirit of the present invention to the extent that various modifications can be made.

1 is a cross-sectional view showing a state in which a windmill for a wind power generator having a variable wing according to an embodiment of the present invention is installed.

Figure 2 is a perspective view showing the configuration of a windmill for a wind turbine having a variable wing according to an embodiment of the present invention.

Figure 3 is a cross-sectional view showing the configuration of the blade and the drive member installed in the windmill according to an embodiment of the present invention.

Figure 4 is a cross-sectional view showing a state in which the auxiliary drive unit is installed in the drive member according to an embodiment of the present invention.

Figure 5 is a cross-sectional view showing a modified state of the auxiliary drive unit according to an embodiment of the present invention.

6 is a cross-sectional view showing a modified state of the windmill blades according to an embodiment of the present invention.

7 is a cross-sectional view showing a state in which a windmill for a wind turbine having a variable wing according to another embodiment of the present invention is installed.

8 is a perspective view showing a wing of a windmill according to another embodiment of the present invention.

9 is a perspective view showing an operation cam of a windmill according to another embodiment of the present invention.

10 is a cross-sectional view showing an operation cam of a windmill according to another embodiment of the present invention.

11 is a perspective view of the unfolded wings of the windmill according to another embodiment of the present invention.

12 is a perspective view of a folded state of the windmill according to another embodiment of the present invention.

♠ Code description for the main part of the drawing ♠

10 housing 11 generator

13: rotor shaft 100: windmill

110: case 120: wing

130: driving member 131: bracket

133 cylinder 135 piston

137: tension spring 139: link

140: auxiliary drive unit 141: base plate

143: drive cam 145: auxiliary link

147: drive motor 160: drive means

161: working rod 163: rotating body

165: operation cam 167: driven gear

169: drive motor

Claims (8)

A case coupled to the rotor rotating shaft of the wind power generator and being rotated together with the rotor rotating shaft; Wings which are installed at regular intervals along the circumferential direction and the longitudinal direction of the case so that the case is rotated by wind, and which are deployed and folded by the force of the wind; A drive member rotatably installed on the case, the drive member pivoting the wing such that the wing is easily deployed and folded along the wind direction; Windmill for a wind turbine having a variable wing characterized in that it comprises a. The method of claim 1, The vane windmill having a variable wing, characterized in that one or two rotatably installed on the drive member. The method of claim 1 or 2, wherein the drive member, A bracket installed in the case and to which the wing is rotatably attached through a hinge; A cylinder installed in the bracket and having a working space formed therein; A piston built in the working space and linearly reciprocating; A tension spring embedded in the working space so that the piston is elastically supported in the wing direction; A link one end of which is connected to the vane and the other end of which is connected to the piston; Windmill for a wind turbine having a variable wing characterized in that it comprises a. The method of claim 3, wherein The drive member, the wind turbine for a wind turbine having a variable wing characterized in that it further comprises an auxiliary drive unit to quickly deploy and fold the wing according to the direction of the wind acting on the blade when the case is rotated. . The method of claim 4, wherein the auxiliary driving unit, A drive cam provided on one side of the cylinder; An auxiliary link having one end connected to the piston and the other end connected to the drive cam; A drive motor for driving the piston such that the piston reciprocates linearly by rotation of the drive cam; Wind turbine for wind turbine with a variable wing characterized in that it comprises a. A case coupled to the rotor rotating shaft of the wind power generator and being rotated together with the rotor rotating shaft; A fixed wing coupled to the case; Rotating wing is rotatably installed on the fixed wing through the hinge, and is developed and folded by the force of the wind; A driving means installed in the case and rotating the pivoting blade so that the pivoting blade is easily deployed and folded along the wind direction; Windmill for a wind turbine having a variable wing characterized in that it comprises a. The method of claim 6, wherein the drive means, An operating rod having one side coupled to the hinge and the other side located inside the case; A rotating body having the same center of rotation as the rotor rotating shaft and having the rotor rotating shaft penetrated therein; A guide groove is formed in the upper surface along the circumferential direction so that the operation rod is inserted, and is coupled to the rotating body. Is differently formed working cam; A driven gear coupled to one side of the rotating body; A drive motor coupled to the drive shaft with a motive gear meshed with the driven gear; Windmill for a wind turbine having a variable wing characterized in that it comprises a. The method of claim 1, The wing is a windmill having a variable wing, characterized in that the bent portion is formed at the end portion so as to receive a greater force when the wind is blowing, the inner side is formed with an auxiliary rib.

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