Blade structure of flexible wind power generation equipment

Abstract

The utility model discloses a flexible wind power generation equipment blade structure which comprises a structure body and a plurality of blades, the blades are arranged on the side surface of the structure body, and each blade is made of flexible materials. The structure body is provided with a bottom plate and a cover plate. The bottom plate is arranged at the bottom end of the structure body. The cover plate is arranged at the top end of the structure body. The multiple blades are arranged between the bottom plate and the cover plate, so that the edge of the side, facing the structure body, of each blade is connected with the side surface of the structure body in a matched mode, and the top end and the bottom end of each blade are correspondingly connected with the cover plate and the bottom plate respectively. According to the blade structure of the flexible wind power generation equipment, the structure body is driven to rotate through the multiple blades under the pushing of airflow, then the wind power generation process is started to be achieved, the blades made of flexible materials can be moderately bent or deformed under the condition of strong wind or gust, and therefore the impact force of the airflow on the blades is reduced, and the structural stress is reduced.

Description

Technical Field

[0001] This utility model relates to the field of wind power generation equipment technology, and in particular to a flexible wind power generation equipment blade structure. Background Technology

[0002] A wind turbine is a device that converts wind energy into electrical energy. It primarily relies on wind power to drive blades to rotate, which in turn generates electricity through a generator. Wind turbines are an important form of renewable energy generation and are widely used in onshore and offshore wind farms. They utilize natural wind energy to provide clean and environmentally friendly electricity, reducing dependence on fossil fuels. A wind turbine mainly consists of a rotor, main shaft, gearbox, generator, frame, base, and converter. The rotor is the core component of the wind turbine; its blades rotate under the influence of wind, converting wind energy into mechanical energy. Typically, a rotor has three blades and employs aerodynamic design to ensure both sufficient efficiency and good wind resistance.

[0003] However, the blades used in existing small wind turbines generally adopt a single-layer structure, which results in low overall structural strength of the blades, thus affecting their service life, fatigue resistance, and energy capture capability under high wind speed conditions. Utility Model Content

[0004] Therefore, it is necessary to provide a flexible wind turbine blade structure to address the technical problem of insufficient strength in existing wind turbine blade structures.

[0005] A flexible wind power generation device blade structure includes a main body and several blades, with the blades disposed on the side surface of the main body, wherein each blade is made of a flexible material.

[0006] The main structure is provided with a base plate and a cover plate. The base plate is located at the bottom end of the main structure, and the cover plate is located at the top end of the main structure. Several blades are located between the base plate and the cover plate, so that the edge of each blade facing the main structure is connected to the side surface of the main structure, and the top and bottom ends of each blade are respectively connected to the cover plate and the base plate.

[0007] Each blade can be configured with a double-layer structure, and the double-layer flexible blade structure can effectively enhance the overall structural strength of the blade.

[0008] In one embodiment, the base plate is provided with a first mounting bracket, which is disposed on the side surface of the base plate facing the cover plate.

[0009] In one embodiment, the end of each blade facing the base plate is connected to the first mounting bracket, thereby enabling the multiple blades to cooperate with the first mounting bracket to form a stable overall structure.

[0010] In one of the embodiments, the cover plate is provided with a second mounting bracket, which is arranged on the side surface of the cover plate facing the base plate.

[0011] In one of the embodiments, one end of each of the blades facing the cover plate is connected to the second mounting bracket, so that the plurality of blades cooperate with the second mounting bracket and the first mounting bracket to form a stable overall structure.

[0012] In one of the embodiments, the first mounting bracket is provided with a plurality of first support beams, which are arranged radially with the geometric center of the first mounting bracket as the axis.

[0013] In one of the embodiments, each of the plurality of blades corresponds to one of the plurality of first support beams, and one end of each of the blades facing the base plate is connected to the corresponding first support beam, so that the plurality of blades are arranged radially relative to the structural body.

[0014] In one of the embodiments, the second mounting bracket is provided with a plurality of second support beams corresponding to the plurality of first support beams, which are arranged radially with the geometric center of the second mounting bracket as the axis.

[0015] In one of the embodiments, each of the plurality of blades corresponds to one of the plurality of second support beams, and one end of each of the blades facing the cover plate is connected to the corresponding second support beam, so that the plurality of blades are arranged radially relative to the structural body.

[0016] In one of the embodiments, the base plate is provided with a first outer bracket, which is sleeved on the outer side of the first mounting bracket and connected to the base plate; correspondingly, the cover plate is provided with a second outer bracket corresponding to the first outer bracket, which is sleeved on the outer side of the second mounting bracket and connected to the cover plate; the first outer bracket cooperates with the second outer bracket to form a mounting site.

[0017] In one of the embodiments, the flexible wind power generation equipment blade structure is further provided with two wind scoops, which are arranged on one side of the structural body, and the top and bottom ends of each of the wind scoops are connected to the second outer bracket and the first outer bracket, respectively; and the two wind scoops are spaced apart by a predetermined distance to form an air outlet.

[0018] In one of the embodiments, the flexible wind power generation equipment blade structure further includes a tail blade, which is arranged outside the air outlet between the two wind scoops, and the two ends of the tail blade are connected to the first outer bracket and the second outer bracket through a connecting rod, respectively, so that the tail blade and the structural body are connected to form an overall structure.

[0019] The flexible wind power generation equipment blade structure is driven to rotate by the airflow, and then the wind power generation process is started. Each blade is made of flexible material. The flexible material can reduce the impact force of the airflow on the blade, reduce the structural stress, thereby prolonging the service life of the blade and the generator, and reducing the maintenance cost; the flexible material can effectively reduce the overall weight of the blade, thereby reducing the load pressure of the wind turbine tower and the base, at the same time, the lightweight of the blade can also reduce the moment of inertia, so as to adapt to the wind speed change faster and improve the power generation efficiency; in addition, the flexible material blade has higher energy capture efficiency and fatigue resistance, under low wind speed conditions, the flexible blade can increase the surface area to capture more wind energy, and under high wind speed, it can reduce the stress to avoid overload; the double-layer flexible blade structure can effectively strengthen the overall structural strength of the blade, thereby further prolonging the service life, and can also withstand higher wind speed, thereby effectively expanding the application range of the flexible wind power generation equipment blade structure. BRIEF DESCRIPTION OF DRAWINGS

[0020] Fig. 1 It is a structural schematic view of the flexible wind power generation equipment blade structure in one embodiment.

[0021] Fig. 2 It is a partial structural schematic view of the flexible wind power generation equipment blade structure in one embodiment.

[0022] Fig. 3 It is a structural schematic view of the flexible wind power generation equipment blade structure in one embodiment. DETAILED DESCRIPTION

[0023] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific embodiments of the utility model will be described in detail below. In the following description, a lot of specific details are set forth in order to fully understand the utility model. However, the utility model can be implemented in many other ways different from the description herein, and those skilled in the art can make similar improvements without departing from the connotation of the utility model, therefore the utility model is not limited by the specific embodiments disclosed below.

[0024] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like is the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0025] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0026] In the utility model, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship of two elements, unless otherwise specifically limited. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0027] In the utility model, unless otherwise specifically defined and limited, the first feature "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" of the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" of the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0028] It is to be understood that when an element such as a layer, region or substrate is referred to as being "on" or "connected to" another element, it can be directly on or connected to the other element or intervening elements can be present. In addition, the term "connected" as used herein means the element that can be directly connected to the other element or intervening elements can be present. As used herein, the term "vertical", "horizontal", "upper", "lower", "left", "right", and the like are merely used for the purpose of illustration and do not indicate the only embodiment.

[0029] Referring to Figs. 1 to 3 The utility model discloses a kind of flexible wind power generation equipment blade structures 10, which includes structure main body 100 and several blades 200, and several blades 200 are arranged on the side surface of structure main body 100, when airflow and several blades 200 act, several blades 200 drive structure main body 100 to rotate under the impetus of airflow, in turn, start to realize wind power generation process.Each blade 200 is made of flexible material. Specifically, structure main body 100 is provided with bottom plate 110 and cover plate 120, bottom plate 110 is arranged at the bottom end of structure main body 100;Cover plate 120 is arranged at the top end of structure main body 100;Several blades 200 are arranged between bottom plate 110 and cover plate 120, so that the side edge of each blade 200 towards structure main body 100 is connected with the side surface of structure main body 100, and the top and bottom ends of each blade 200 are connected with cover plate 120 and bottom plate 110 respectively, so that structure main body 100 in combination with cover plate 120 and bottom plate 110 can effectively support each blade 200, so that the blade 200 made of flexible material can maintain the preset shape, to ensure that each blade 200 and airflow fully act.In practical application, the blade 200 made of flexible material can be moderately bent or deformed under strong wind or gusty wind conditions, so as to reduce the impact force of airflow on the blade 200, reduce the structural stress, thereby helping to prolong the service life of the blade 200 and the generator, and reduce the maintenance cost;Flexible material can effectively reduce the overall weight of the blade 200, thereby reducing the load pressure of the wind turbine tower and base, at the same time, the lightweight of the blade 200 can also reduce the moment of inertia, so as to adapt to the change of wind speed faster, improve the power generation efficiency;In addition, the blade 200 made of flexible material also has higher energy capture efficiency and fatigue resistance, under low wind speed conditions, flexible blade 200 can increase the surface area to capture more wind energy, and under high wind speed, it can reduce stress to avoid overload.

[0030] Further, each blade 200 can be provided as a double-layer structure, and the double-layer flexible blade structure can effectively strengthen the overall structural strength of the blade 200, thereby further prolonging the service life, and also capable of bearing higher wind speed, thereby effectively expanding the application range of the flexible wind power generation equipment blade structure 10.

[0031] Further, the bottom plate 110 is provided with a first mounting bracket 111, which is arranged on the side surface of the bottom plate 110 facing the cover plate 120. Specifically, one end of each blade 200 facing the bottom plate 110 is connected to the first mounting bracket 111, so that the plurality of blades 200 cooperate with the first mounting bracket 111 to form a stable overall structure, thereby strengthening the structural stability between the plurality of blades 200.

[0032] Further, the cover plate 120 is provided with a second mounting bracket 121, which is arranged on the side surface of the cover plate 120 facing the bottom plate 110. Specifically, one end of each blade 200 facing the cover plate 120 is connected to the second mounting bracket 121, so that the plurality of blades 200 cooperate with the second mounting bracket 121 and the first mounting bracket 111 to form a stable overall structure, thereby further strengthening the structural stability between the plurality of blades 200.

[0033] Further, the first mounting bracket 111 is provided with a plurality of first support beams 112, which are arranged radially with the geometric center of the first mounting bracket 111 as the axis. Specifically, the plurality of blades 200 are one-to-one corresponding to the plurality of first support beams 112, and one end of each blade 200 facing the bottom plate 110 is connected to the corresponding first support beam 112, so that the plurality of blades 200 are arranged radially relative to the structural body 100.

[0034] Further, the second mounting bracket 121 is provided with a plurality of second support beams 122 corresponding to the plurality of first support beams 112, which are arranged radially with the geometric center of the second mounting bracket 121 as the axis. Specifically, the plurality of blades 200 are one-to-one corresponding to the plurality of second support beams 122, and one end of each blade 200 facing the cover plate 120 is connected to the corresponding second support beam 122, so that the plurality of blades 200 are arranged radially relative to the structural body 100.

[0035] Please refer to Fig. 3Further, the bottom plate 110 is provided with a first outer support 113, the first outer support 113 is sleeved on the outer side of the first mounting support 111 and connected to the bottom plate 110; Correspondingly, the cover plate 120 is provided with a second outer support 123 corresponding to the first outer support 113, the second outer support 123 is sleeved on the outer side of the second mounting support 121 and connected to the cover plate 120; The first outer support 113 cooperates with the second outer support 123 to form an installation site. Specifically, the flexible wind power equipment blade structure 10 is further provided with two wind scoops 300, the two wind scoops 300 are arranged on one side of the structure main body 100, and the top and bottom ends of each wind scoop 300 are respectively connected to the second outer support 123 and the first outer support 113; And, the two wind scoops 300 are spaced apart by a predetermined distance, thereby forming an air outlet. In actual application, the two wind scoops 300 can drive the airflow passing through the plurality of blades 200 and the structure main body 100, and then the airflow guided by the wind scoops 300 is output to the outside of the wind scoops 300 through the air outlet between the wind scoops 300. In the process, the wind scoops 300 can effectively converge the airflow blowing to the plurality of blades 200 and the structure main body 100, thereby improving the wind energy capturing capacity of the plurality of blades 200.

[0036] Please refer to Fig. 3 Further, the flexible wind power equipment blade structure 10 further includes a tail blade 400, the tail blade 400 is arranged outside the air outlet between the two wind scoops 300, and the two ends of the tail blade 400 are respectively connected to the first outer support 113 and the second outer support 123 through a connecting rod 410, so that the tail blade 400 is connected with the structure main body 100 to form a whole structure, and then the tail blade 400 can adjust the orientation of the two wind scoops 300 according to the wind direction, thereby realizing the maximum utilization of wind energy.

[0037] In summary, the flexible wind power generation equipment blade structure disclosed by the utility model is driven to rotate by the structure main body under the airflow pushing of the blades, and then the wind power generation process is realized. Each blade is made of flexible material. The blade made of flexible material can be moderately bent or deformed under strong wind or sudden wind conditions, thereby reducing the impact force of the airflow on the blade and reducing the structural stress, thereby helping to prolong the service life of the blade and the generator and reducing the maintenance cost; the flexible material can effectively reduce the overall weight of the blade, thereby reducing the load pressure of the wind turbine tower and the base, at the same time, the lightweight of the blade can also reduce the moment of inertia, so as to more quickly adapt to the wind speed change and improve the power generation efficiency; in addition, the blade made of flexible material also has higher energy capture efficiency and fatigue resistance, under low wind speed conditions, the flexible blade can increase the surface area to capture more wind energy, and under high wind speed, the stress can be reduced to avoid overload; the double-layer flexible blade structure can effectively strengthen the overall structural strength of the blade, thereby further prolonging the service life, and can also withstand higher wind speed, thereby effectively expanding the application range of the flexible wind power generation equipment blade structure.

[0038] The technical features of the above-described embodiments can be combined in any manner, and to make the description concise, all possible combinations of the technical features in the above-described embodiments are not described, however, as long as the combinations of the technical features do not exist contradictory, they should be considered as the scope of the present disclosure.

[0039] The above-described embodiments only express several implementation manners of the utility model, the description is more specific and detailed, but it should not be understood as the limitation of the scope of the utility model patent. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the utility model, a number of modifications and improvements can be made, which belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent should be subject to the appended claims.

Claims

1. A flexible wind power plant blade structure, characterized in that, The flexible wind power generation equipment blade structure comprises a structure body and a plurality of blades, wherein each blade is made of flexible material. The structure body is provided with a bottom plate and a cover plate, the bottom plate is arranged at the bottom end of the structure body, the cover plate is arranged at the top end of the structure body, and the plurality of blades are arranged between the bottom plate and the cover plate, so that each blade is connected to the side surface of the structure body through the side edge of the structure body, and the top and bottom ends of each blade are respectively connected to the cover plate and the bottom plate. The bottom plate is provided with a first mounting bracket arranged on the side surface of the bottom plate facing the cover plate, the cover plate is provided with a second mounting bracket arranged on the side surface of the cover plate facing the bottom plate, the first mounting bracket is provided with a plurality of first supporting beams arranged radially with the geometric center of the first mounting bracket as the axis, each blade is respectively corresponding to each first supporting beam, and one end of each blade facing the bottom plate is connected to the corresponding first supporting beam, the second mounting bracket is provided with a plurality of second supporting beams corresponding to the plurality of first supporting beams, the plurality of second supporting beams are arranged radially with the geometric center of the second mounting bracket as the axis, and each blade is respectively corresponding to each second supporting beam, and one end of each blade facing the cover plate is connected to the corresponding second supporting beam. Each blade is arranged as a double-layer structure. One end of each blade facing the bottom plate is connected to the first mounting bracket.

2. A flexible wind power plant blade structure according to claim 1, characterized in that One end of each blade facing the cover plate is connected to the second mounting bracket.

3. A flexible wind power plant blade structure according to claim 2, c h a r a c t e r i z e d in that The bottom plate is provided with a first outer bracket sleeved outside the first mounting bracket and connected to the bottom plate, the cover plate is provided with a second outer bracket corresponding to the first outer bracket, the second outer bracket is sleeved outside the second mounting bracket and connected to the cover plate, and the first outer bracket cooperates with the second outer bracket to form a mounting site.

4. A flexible wind power plant blade structure according to claim 3, characterised in that, The flexible wind power generation equipment blade structure is further provided with two wind scoops arranged on one side of the structure body, the top and bottom ends of each wind scoop are respectively connected to the second outer bracket and the first outer bracket, and the two wind scoops are spaced apart by a predetermined distance to form an air outlet.

5. A flexible wind power plant blade structure according to claim 4, c h a r a c t e r i z e d in that The flexible wind power generation equipment blade structure further comprises a tail blade arranged outside the air outlet between the two wind scoops, and the two ends of the tail blade are respectively connected to the first outer bracket and the second outer bracket through a connecting rod.

6. A flexible wind power plant blade structure according to claim 5, characterised in that, The flexible wind power generation equipment blade structure further comprises a tail blade arranged outside the air outlet between the two wind scoops, and the two ends of the tail blade are respectively connected to the first outer bracket and the second outer bracket through a connecting rod.

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