wind turbine

Abstract

The present invention discloses a wind turbine, comprising: a support rod; a main cabin frame, which is arranged at the upper end of the support rod; a wind rotor, which is rotatably arranged in the main cabin frame; and a wind shield, which includes a front wind shield and a rear wind shield, respectively arranged on both sides of the main cabin frame, for allowing airflow to flow into the front wind shield, pass through the wind rotor, and then flow out of the rear wind shield. When the wind turbine is in operation, the front wind shield and the rear wind shield are both trumpet-shaped with the shield opening facing outward. By configuring the wind shield in the trumpet shape, the wind turbine can generate electricity even under low wind speed conditions, thereby improving the utilization rate of wind energy.

Description

Technical Field

[0001] The present invention relates to a wind turbine. Background Art

[0002] With the development of the global economy and the increasing demand for energy, humanity is facing pressure from both energy utilization and environmental protection. The development and utilization of renewable energy sources are becoming increasingly important. Wind energy, as a clean, renewable energy source, has a wide distribution and huge reserves, and the international wind power generation industry has experienced rapid development.

[0003] In the prior art, wind turbines that use wind energy to generate electricity have the following defects:

[0004] 1. Wind turbine power generation requires high wind speed. Usually, a wind speed of at least 4 meters per second is required for the wind turbine to operate and generate electricity. The utilization rate of wind energy is low, and wind turbines cannot be used in low wind speed areas.

[0005] 2. Under high wind speeds, wind turbines need to be shut down and are at risk of being damaged by wind. Summary of the Invention

[0006] In view of the above technical problems existing in the prior art, an embodiment of the present invention provides a wind turbine.

[0007] To solve the above technical problems, the technical solutions adopted in the embodiments of the present invention are:

[0008] A wind turbine comprising:

[0009] support rods;

[0010] a main cabin frame, which is arranged at the upper end of the support rod;

[0011] a wind wheel rotatably disposed in the main cabin frame;

[0012] A wind shield, comprising a front wind shield and a rear wind shield respectively provided on both sides of the main cabin frame, for allowing airflow to flow into the front wind shield and out of the rear wind shield after passing through the wind wheel; wherein:

[0013] When the wind turbine is in operation, the front wind shield and the rear wind shield are both trumpet-shaped with the shield openings facing outwards.

[0014] Preferably, the front air hood and the rear air hood both include:

[0015] A skeleton, comprising a plurality of skeletons, wherein the plurality of skeletons are circumferentially arranged on the main cabin frame;

[0016] A flexible cloth is used for being attached to the frame.

[0017] Preferably, each of the skeletons is hinged to the main cabin frame; wherein:

[0018] The wind turbine further comprises a spring pull rod; a spring pull rod is provided between the two corresponding frames of the front wind shield and the rear wind shield, so that the front wind shield and the rear wind shield can be kept in an open state.

[0019] Preferably, the wind turbine further comprises an adjustment mechanism; wherein:

[0020] The regulating mechanism comprises:

[0021] A pull rope, used for pulling the hood openings of the front air hood and the rear air hood toward the center to adjust the diameters of the hood openings;

[0022] The curling assembly is used to apply tension to the draw cord and curl the draw cord.

[0023] Preferably, the adjustment mechanism further comprises:

[0024] A central tube passes through the main cabin frame, with both ends of the central tube extending toward the centers of the hood openings of the front and rear hoods; wherein:

[0025] A connecting disk is provided in the central tube;

[0026] The pull rope includes a sub-pull rope and a main pull rope; the sub-pull rope is used to pull the hood opening (it has been disclosed in subsequent claims that it is used to pull the flexible cloth, and the pulling of the flexible cloth is not directly recorded in this claim in order to expand the scope of protection) the free ends of all the sub-pull ropes extend into the central tube and are connected to the connecting disk, and the main pull rope passes through the central tube and is connected between the connecting disk and the curling assembly.

[0027] Preferably, the curling assembly comprises:

[0028] Bracket;

[0029] A guide wheel is provided on the bracket, wherein the guide wheel includes two guide wheels and is used to guide the total pull rope from the front wind shield and the rear wind shield;

[0030] a winding wheel, which is provided on the bracket, and includes two winding wheels, for retracting and releasing the main draw rope from the front wind shield and the rear wind shield;

[0031] The motor is used to drive the winding wheel to rotate, and the motor is a self-locking motor.

[0032] Preferably, both ends of the central tube are provided with circumferentially arranged line-dividing wheels for separately guiding the separate pull ropes.

[0033] Preferably, the main cabin frame is connected to the upper end of the support rod by a slewing bearing so that the wind shield can rotate horizontally.

[0034] Preferably, the axial dimension of the front air hood is smaller than the axial dimension of the rear air hood.

[0035] Preferably, each of the branch drawstrings is connected to a middle position of an edge of the flexible cloth of the mask opening.

[0036] Compared with the prior art, the wind turbine disclosed in the present invention has the following beneficial effects:

[0037] 1. By setting the wind shield in a trumpet shape, the wind turbine can generate electricity even when the wind speed is low, thereby improving the utilization rate of wind energy.

[0038] 2. Adjust the size of the hood opening according to the wind speed, and use the adjustment mechanism to make the hood opening adapt to the wind speed.

[0039] 3. When the wind speed is extremely high, the hood opening is closed by the adjustment mechanism to prevent the wind turbine from being damaged by the wind speed.

[0040] 4. The axial dimension of the front wind shield is smaller than that of the rear wind shield so that the wind shield can yaw automatically, thereby eliminating the need for a complex mechanism for yaw.

[0041] 5. The wind shield is made of a frame and flexible cloth, and the cost is low.

[0042] This disclosure is an overview of various implementations or examples of the technology, and is not a comprehensive disclosure of the full scope or all features of the disclosed technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In the drawings, which are not necessarily drawn to scale, the same reference numerals may describe similar components in different views. The same reference numerals with letter suffixes or different letter suffixes may represent different instances of similar components. The accompanying drawings generally illustrate various embodiments by way of example and not limitation, and together with the description and claims, serve to illustrate the embodiments of the invention. Where appropriate, the same reference numerals are used throughout the drawings to refer to the same or similar parts. Such embodiments are illustrative and are not intended to be exhaustive or exclusive of the embodiments of the present apparatus or method.

[0044] Figure 1 This is a schematic diagram of the three-dimensional structure of a wind turbine provided by an embodiment of the present invention.

[0045] Figure 2 This is a schematic diagram of the three-dimensional structure of a wind turbine provided by an embodiment of the present invention (the wind shield is hidden).

[0046] Figure 3 A schematic structural diagram of the regulating mechanism in a wind turbine provided by an embodiment of the present invention.

[0047] Figure 4 for Figure 3 An enlarged view of detail A.

[0048] Figure 5 for Figure 3 An enlarged view of detail B.

[0049] Figure 6 This is a schematic plan view of the structure of a wind turbine provided by an embodiment of the present invention.

[0050] Figure 7 This is a schematic diagram of the three-dimensional structure of a wind turbine provided by an embodiment of the present invention (the wind shield is in a closed state).

[0051] Reference numerals:

[0052] 10-wind shield; 11-front wind shield; 12-rear wind shield; 131-skeleton; 132-flexible cloth; 20-wind wheel; 30-main cabin frame; 31-pillar; 40-spring pull rod; 50-adjustment mechanism; 51-center tube; 521-bracket; 522-main rope; 523-connecting plate; 524-bracket pulley; 53-winding assembly; 531-bracket; 532-guide wheel; 533-winding wheel; 534-motor; 60-support rod; 70-slewing bearing. DETAILED DESCRIPTION

[0053] Unless otherwise defined, the technical or scientific terms used in the present invention shall have the usual meanings understood by persons of ordinary skill in the field to which the present invention belongs. The words "first", "second" and similar terms used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "include" or "comprise" mean that the elements or objects preceding the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0054] In order to keep the following description of the embodiments of the present invention clear and concise, detailed descriptions of known functions and known components are omitted.

[0055] like Figures 1 to 7As shown, the embodiment disclosed in the present invention discloses a wind turbine, which includes: a support pole 60, a main cabin frame 30, a wind wheel 20, a wind shield 10 and an adjustment mechanism 50.

[0056] The main cabin frame 30 can be a circular frame or a polygonal frame, and the wind wheel 20 is installed in the main cabin frame 30; the main cabin frame 30 is connected to the upper end of the support rod 60 by a slewing bearing 70, which enables the main cabin frame 30 to rotate horizontally.

[0057] like Figure 1 As shown, the wind hood includes a front wind hood 11 and a rear wind hood 12. The front wind hood 11 is arranged on the front side of the main cabin frame 30, and the rear wind hood 12 is arranged on the rear side of the main cabin frame 30. The front wind hood 11 is used to face the wind side, and the airflow (wind) enters from the front wind hood 11, flows through the wind wheel 20 and flows out from the rear wind hood 12. The airflow passes through the wind wheel 20 and causes the wind wheel 20 to rotate, thereby converting the kinetic energy of the wind wheel 20 into electrical energy to achieve power generation.

[0058] The front and rear windshields 11 and 12 each include a frame 131 and flexible fabric 132. Both sides of the main cabin frame 30 include multiple frames 131 hinged to the main cabin frame 30, and flexible fabric 132 (made of nylon, sunscreen, or plastic) attached to the frames 131.

[0059] Circumferentially arranged pillars 31 are provided on the outer periphery of the main cabin frame 30. The pillars 31 correspond to the skeletons 131 on both sides of the main cabin frame 30. Spring pull rods 40 are provided between the pillars 31 and the skeletons 131. The spring pull rods 40 are inclined and radially pull the skeleton 131 outward to make the front wind shield 11 and the rear wind shield 12 form a trumpet shape.

[0060] For the front wind shield 11, the trumpet-shaped structure enables the wind turbine to gather more airflow, while for the rear wind shield 12, the trumpet-shaped structure makes it easier for the airflow passing through the wind wheel 20 to flow out. Therefore, the front wind shield 11 can be called a wind gathering shield, and the rear wind shield 12 can be called an airflow expansion shield.

[0061] like Figure 2 and Figure 3 As shown, the adjustment mechanism 50 adjusts the diameter of the hood opening of the front wind hood 11 and / or the rear wind hood 12 by pulling the wind hood radially inward according to the wind speed. The adjustment mechanism 50 includes: a pull rope, a central tube 51, a curling assembly 53 and a connecting disk 523.

[0062] The central tube 51 passes through the main cabin frame 30, and the two ends of the central tube 51 extend to the center of the hood openings of the front wind shield 11 and the rear wind shield 12 respectively; both sides of the main cabin frame 30 correspond to a set of pull ropes and connecting plates 523; the connecting plates 523 are set in the central tube 51. Figure 5As shown, each set of pull ropes includes a main pull rope 522 and multiple branch pull ropes 521; one end of the branch pull ropes 521 is respectively connected to the edge of the flexible cloth 132 of the cover, and the other ends of all the branch pull ropes 521 pass through the central tube 51 under the diversion guide of the diversion wheel 524 of the central tube 51 to be connected to one side of the connecting disk 523, while the main pull rope 522 is connected to the other side of the main cabin frame 30.

[0063] like Figure 4 As shown, the winding assembly 53 includes a bracket 531 fixed to the central tube 51, a motor 534 mounted on the bracket 531, and a transmission mechanism connected to the motor 534. Winding wheels 533 are mounted on each of the two output ends of the transmission mechanism. The bracket 531 is also equipped with two guide wheels 532 corresponding to the winding wheels 533. The main pull rope 522 on either side of the main cabin frame 30 is connected to the winding wheels 533 via the two guide wheels 532. The motor, via the transmission mechanism, drives the two winding wheels 533 to retract and extend the main pull rope 522. When the winding wheel 533 reels in the main pull rope 522, the sub-pull rope 521 drags the flexible cloth 132 of the front wind hood 11 and the rear wind hood 12 to overcome the tension of the spring pull rod 40 and reduce the diameter of the hood openings of the front wind hood 11 and the rear wind hood 12; when the winding wheel 533 extends the main pull rope 522, the sub-pull rope 521 releases the flexible cloth, and under the action of the spring pull rod 40, the diameter of the hood openings of the front wind hood 11 and the rear wind hood 12 increases.

[0064] When the wind speed in the area where the wind turbine is located is relatively low, the adjustment mechanism 50 can release the pull rope, and the front wind cover 11 and the rear wind cover 12 form a trumpet state with the largest diameter, thereby gathering more airflow through the front wind cover 11, so that the wind turbine can generate electricity even when the wind speed is relatively low.

[0065] When the wind speed in the area where the wind turbine is located is relatively high, the diameters of the front wind shield 11 and the rear wind shield 12 can be adjusted to adapt to the wind speed by tightening the pull rope of the adjustment mechanism 50 .

[0066] When the wind speed in the wind turbine locking area is extremely high, the hood openings of the front wind shield 11 and the rear wind shield 12 can be closed by tightening the pull rope of the adjustment mechanism 50 to prevent the wind turbine from being damaged by the wind.

[0067] The beneficial effects of the wind turbine provided by the present invention are:

[0068] 1. By setting the wind shield in a trumpet shape, the wind turbine can generate electricity even when the wind speed is low, thereby improving the utilization rate of wind energy.

[0069] 2. Adjust the size of the hood opening according to the wind speed, and use the adjustment mechanism 50 to make the hood opening adapt to the wind speed.

[0070] 3. When the wind speed is extremely high, the opening of the wind hood is closed by the adjusting mechanism 50, thereby preventing the wind turbine from being damaged by the wind speed.

[0071] 4. The axial dimension of the front wind shield 11 is smaller than that of the rear wind shield 12 so that the front wind shield 11 is always aligned with the incoming wind direction to achieve automatic yaw, thereby eliminating the need for a complex mechanism for yaw.

[0072] 5. The wind shield is constructed of a frame 131 and flexible cloth, and has a low cost.

[0073] In addition, although exemplary embodiments have been described in the present invention, the scope includes any and all embodiments based on the present invention with equivalent elements, modifications, omissions, combinations (e.g., solutions that intersect various embodiments), adaptations, or changes. The elements in the claims are to be interpreted broadly based on the language used in the claims and are not limited to the examples described in this specification or during the prosecution of this application, which examples are to be interpreted as non-exclusive. Therefore, this specification and examples are intended to be considered as examples only, and the true scope and spirit are indicated by the following claims and the full scope of their equivalents.

[0074] The above description is intended to be illustrative and not restrictive. For example, the above examples (or one or more of their solutions) can be used in combination with each other. For example, a person of ordinary skill in the art may use other embodiments when reading the above description. In addition, in the above-mentioned specific embodiments, various features can be grouped together to simplify the present invention. This should not be interpreted as an intention that a disclosed feature that is not required to be protected is necessary for any claim. On the contrary, the subject matter of the present invention may be less than all the features of a specific disclosed embodiment. Thus, the following claims are incorporated into the specific embodiments as examples or embodiments, wherein each claim is independently a separate embodiment, and it is considered that these embodiments can be combined with each other in various combinations or arrangements. The scope of the present invention should be determined with reference to the appended claims and the full scope of equivalents to which these claims are entitled.

[0075] The above embodiments are merely exemplary embodiments of the present invention and are not intended to limit the scope of the present invention. The scope of protection of the present invention is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present invention within the spirit and scope of protection of the present invention, and such modifications or equivalent substitutions shall also be deemed to fall within the scope of protection of the present invention.

Claims

1. A wind turbine, characterized in that: include: support rods; a main cabin frame, which is arranged at the upper end of the support rod; a wind wheel rotatably disposed in the main cabin frame; A wind shield, comprising a front wind shield and a rear wind shield respectively provided on both sides of the main cabin frame, for allowing airflow to flow into the front wind shield and out of the rear wind shield after passing through the wind wheel; wherein: When the wind turbine is in operation, the front wind shield and the rear wind shield are both trumpet-shaped with the shield openings facing outwards; The front air hood and the rear air hood both include: A skeleton, comprising a plurality of skeletons, wherein the plurality of skeletons are circumferentially arranged on the main cabin frame; a flexible cloth for attaching to the frame; Each of the skeletons is hinged to the main cabin frame; wherein: The wind turbine further includes a spring pull rod; a spring pull rod is provided between two corresponding frames of the front wind shield and the rear wind shield, so that the front wind shield and the rear wind shield can be kept in an open state; The wind turbine further includes an adjustment mechanism; wherein: The regulating mechanism comprises: A pull rope, used for pulling the hood openings of the front air hood and the rear air hood toward the center to adjust the diameters of the hood openings; a curling assembly for applying tension to the drawstring and curling the drawstring; The regulating mechanism further comprises: A central tube passes through the main cabin frame, with both ends of the central tube extending toward the centers of the hood openings of the front and rear hoods; wherein: A connecting disk is provided in the central tube; The pull rope includes a sub-pull rope and a main pull rope; the sub-pull rope is used to pull the mask opening, the free ends of all the sub-pull ropes extend into the central tube and are connected to the connecting disk, and the main pull rope passes through the central tube and is connected between the connecting disk and the curling assembly; Each of the branch drawstrings is connected to the middle position of the edge of the flexible cloth of the mask; The crimping assembly comprises: a bracket fixed to the central tube; A guide wheel is provided on the bracket, wherein the guide wheel includes two guide wheels and is used to guide the total pull rope from the front wind shield and the rear wind shield; a winding wheel, which is provided on the bracket, and includes two winding wheels, for retracting and releasing the main draw rope from the front wind shield and the rear wind shield; The motor is used to drive the winding wheel to rotate, and the motor is a self-locking motor.

2. The wind turbine according to claim 1, characterized in that Both ends of the central tube are provided with circumferentially arranged line-dividing wheels for respectively dividing and guiding the pull ropes.

3. The wind turbine according to claim 1, characterized in that The main cabin frame is connected to the upper end of the support rod via a slewing bearing so that the wind shield can rotate horizontally.

4. The wind turbine according to claim 1, wherein: The axial dimension of the front air hood is smaller than the axial dimension of the rear air hood.

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