Wind driven generator blade and generator

Abstract

The invention relates to the technical field of wind driven generators, and discloses a wind driven generator blade and a generator, the wind driven generator blade comprises a blade set and a gear ring, the gear ring is arranged outside the blade set, an inner cavity of the blade set is provided with an anti-freezing mechanism, the anti-freezing mechanism comprises an air inlet pipe fitting, and an air inlet of the air inlet pipe fitting communicates with an air inlet pipe opening; a pneumatic valve is arranged outside the air inlet pipe opening, a heating piece is arranged at the top of the air inlet pipe fitting, the output end of the heating piece is connected with a heating piece, the heating piece is embedded in an inner cavity of the tower, and the air outlet end of the air inlet pipe fitting communicates with a control mechanism. According to the wind driven generator blade and the generator, after air passes through the air inlet pipe fitting, the heating piece drives the heating piece to be heated to form hot air flow, and the hot air flow enters the three-way valve through the air inlet head and then is sprayed out of the nozzle to the blade set inner cavity through the hose fitting, so that icing of a power generation mechanism and the blade is effectively avoided, and uniform heating of the blade set inner cavity is ensured; and by means of meshing linkage of the gear ring and the gear, the comprehensiveness and accuracy of the anti-freezing range are improved.

Description

Technical Field

[0001] This invention relates to the field of wind turbine technology, specifically to a wind turbine blade and a generator. Background Technology

[0002] Wind turbine blades and generators, as core components of wind power generation systems, are key equipment for achieving efficient conversion of wind energy into electrical energy. Their core structure typically consists of a blade assembly with multiple blades, a hub, a transmission system, and the generator itself. The blade assembly captures wind energy through aerodynamic design, driving the hub and transmission system to rotate, which in turn drives the generator rotor. Using the principle of electromagnetic induction, mechanical energy is converted into electrical energy, which is ultimately transmitted to the user end via the power grid. This process places extremely high demands on the aerodynamic performance of the blade assembly, the conversion efficiency of the generator, and the reliability of the overall structure. Especially under complex weather conditions, the stable operation of the equipment directly affects the economy and safety of the wind power generation system.

[0003] When operating in complex environments with low temperatures, high humidity, or mixed rain and snow, the surface of wind turbine blades and the interior of the generator are highly susceptible to condensation of supercooled water droplets or water vapor in the air. Specifically, when the ambient temperature is close to or below the freezing point, the leading edge of the blades is prone to icing first due to the impact of high-speed airflow. The ice layer gradually spreads towards the middle and trailing edges of the blades, which not only increases the aerodynamic load on the blades but also disrupts the rotational balance of the blades due to uneven ice distribution. At the same time, if moisture enters the generator, it may cause a decrease in the insulation performance of the windings or failure of bearing lubrication, resulting in a significant reduction in wind power generation efficiency and even causing safety accidents such as blade breakage and generator failure. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a wind turbine blade and a generator to solve the technical problems mentioned above. When the ambient temperature is close to or below the freezing point, the leading edge of the blade assembly is prone to icing first due to the impact of high-speed airflow. The ice layer gradually spreads to the middle and trailing edge of the blade, which not only increases the aerodynamic load on the blade assembly, but also disrupts the rotational balance of the blade assembly due to uneven ice distribution. At the same time, if moisture enters the generator, it may cause a decrease in the insulation performance of the windings or failure of the bearing lubrication, resulting in a significant reduction in wind power generation efficiency, and even causing safety accidents such as blade breakage and generator failure.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a wind turbine blade, comprising: a blade assembly and a toothed ring, wherein the toothed ring is disposed outside the blade assembly, the inner cavity of the blade assembly is provided with an anti-freezing mechanism, the anti-freezing mechanism includes an air inlet pipe, the air inlet of the air inlet pipe is connected to an air inlet port, and a pneumatic valve is disposed outside the air inlet port, a heating element is disposed at the top of the air inlet pipe, the output end of the heating element is connected to a heating element, the heating element is embedded in the inner cavity of the tower, and the air outlet of the air inlet pipe is connected to a control mechanism;

[0006] The control mechanism includes a three-way valve, the air inlet of which is connected to an air inlet head, which is connected to an air inlet pipe, and flexible hoses connected to both sides of the three-way valve. Spray nozzles are connected to the outside of the two sets of flexible hoses respectively. A gear is connected to the outside of the control rod of the three-way valve, and the gear meshes with a gear ring.

[0007] When the blade assembly rotates during operation, it forces outside air into the bottom air intake. Outside air enters through the intake, and the pneumatic valve adjusts the intake volume according to the blade assembly's antifreeze requirements. After entering the intake, the heating element drives the heat-generating element to heat the air, creating a hot airflow. This hot airflow enters the three-way valve through the intake head, and then is sprayed out through the hose from the nozzle into the blade assembly's inner cavity, preventing the power generation mechanism and blades from icing. Simultaneously, the gear ring rotates with the blade assembly, driving the gear to rotate, which in turn controls the three-way valve to switch paths, allowing the two sets of nozzles to work alternately or collaboratively. This ensures uniform heating of the blade assembly's inner cavity, achieving blade antifreeze through hot airflow circulation. Furthermore, the meshing and linkage between the gear ring and the gear enhances the comprehensiveness and precision of the antifreeze range.

[0008] Preferably, the blade assembly is provided with a fastener on its exterior, the fastener is provided with an assembly flange on its exterior, and the assembly flange is provided with connecting bolts on its exterior.

[0009] The assembly flange is fixed to the nose cone assembly by connecting bolts. The fasteners reinforce the edges or key stress points of the blade assembly, forming a multi-layered fixing structure to ensure that the blade assembly does not loosen or deform under high-speed rotation and strong airflow impact, thereby improving the stability of the connection and the structural strength, and extending the service life of the blades.

[0010] Preferably, the inner cavity of the blade assembly is provided with an assembly groove, the interior of the assembly groove is connected to the exterior of the antifreeze mechanism, and the inner cavity of the assembly groove is provided with reinforcing ribs.

[0011] The assembly slot provides precise installation positioning for the antifreeze mechanism. Reinforcing ribs are distributed inside the assembly slot to enhance the connection strength between the slot and the blade assembly cavity, preventing the antifreeze mechanism from shifting due to vibration when the blades rotate. At the same time, the reinforcing ribs improve the deformation resistance of the blade assembly cavity and adapt to stress changes caused by airflow impact.

[0012] Preferably, a protective shell is provided on the top of the air intake pipe, the protective shell is located on the top of the inner cavity of the heating element, a control module is provided inside the protective shell, and a communication device is provided outside the control module.

[0013] The protective shell isolates the control module from external dust and moisture. The control module receives signals from various sensors and regulates the operation of the antifreeze mechanism. The communication equipment transmits the operating data to the remote terminal, improving the working stability and lifespan of the control module, realizing intelligent control and remote monitoring of the antifreeze mechanism, and facilitating timely troubleshooting.

[0014] Preferably, the bottom of the inner cavity of the air inlet is open, and a filter screen is provided in the inner cavity of the air inlet, with a ventilation filter element provided outside the filter screen.

[0015] The open design increases the air intake contact area and improves air intake efficiency; the filter screen and air filter element filter particulate matter and impurities in the air layer by layer to ensure that the air entering the air intake pipe is clean and to prevent impurities from clogging the heating element, nozzle and other components, while ensuring that the air intake volume meets the antifreeze requirements.

[0016] Preferably, the heating element is made of carbon fiber heating tube, and the outer surface of the heating element is coated with a high-temperature resistant insulating layer. The nozzle is a high-pressure atomizing nozzle, and the meshing part of the gear and the gear ring is provided with a self-lubricating and wear-resistant coating.

[0017] Carbon fiber heating tubes have high heat conversion efficiency and can quickly heat air; high-temperature resistant insulation layer prevents leakage and ensures electrical safety; high-pressure atomizing nozzles atomize hot airflow into fine particles, increasing the contact area with the inner cavity of the blades; self-lubricating and wear-resistant coating reduces friction loss when gears and gear rings mesh, improves heating efficiency, reduces energy consumption, and ensures uniform antifreeze effect; it also extends the service life of gears and gear rings and reduces maintenance frequency.

[0018] Preferably, the air intake pipe is wrapped with an insulation layer made of polyurethane foam. A lightning arrester is installed on the outer surface of the blade assembly. The lightning arrester is connected to the bottom of the tower via a wire. The flexible hose is made of low-temperature resistant silicone material and has spiral metal reinforcing ribs on its outer wall. A temperature sensor is connected to the input end of the heating element. The temperature sensor is embedded in the inner wall of the blade assembly and is electrically connected to the control module.

[0019] The polyurethane insulation layer reduces heat loss from the intake pipes, maintaining the temperature of the hot airflow; the lightning arrester directs lightning to the ground, preventing damage to the blades from lightning strikes; the low-temperature resistant silicone hose adapts to low-temperature environments, and the spiral metal reinforcing ribs prevent the hose from rupturing due to pressure or torsion; the temperature sensor monitors the temperature of the inner wall of the blade assembly in real time, transmitting the data to the control module, which adjusts the power of the heating element to reduce heat loss and improve antifreeze efficiency; it enhances the lightning protection safety of the blades and the durability of the hose; and it enables intelligent adjustment of heating based on the actual temperature of the blades, avoiding energy waste.

[0020] A wind turbine, employing the aforementioned wind turbine blade, includes a tower and a power generation mechanism. The power generation mechanism is mounted on the upper end of the tower, and a nose cone shroud is connected to the output end of the power generation mechanism. The blade assembly is evenly arranged outside the nose cone shroud, and the toothed ring is connected to the power generation mechanism.

[0021] The blade assembly drives the nose cone to rotate under the action of wind, which in turn drives the power generation mechanism to generate electricity; the gear ring moves synchronously with the power generation mechanism, providing power to the gears of the control mechanism, realizing the coordination between the antifreeze mechanism and the blade rotation, and the uniform distribution of the blade assembly ensures the balance of forces and improves the power generation efficiency; the linkage between the gear ring and the power generation mechanism enables the antifreeze mechanism to adapt to the rotation state of the blades, ensuring that the antifreeze effect is synchronized with the power generation process.

[0022] Preferably, the inner cavity of the tower is equipped with a transformer and a control device, the inner cavity of the power generation mechanism is equipped with a generator, the input end of the generator is connected to a power transmission shaft, the other end of the power transmission shaft is connected to an accelerator, the input end of the accelerator is connected to a nose cone cover, and the generator and the transformer are connected by a line.

[0023] The nose cone shroud drives the accelerator to rotate. After the accelerator increases the speed, it transmits the power to the generator through the power transmission shaft, enabling the generator to generate electricity efficiently. The electrical energy generated by the generator is transmitted to the transformer through the line and converted into voltage that meets the grid connection standards. The control device coordinates the operation of each component and increases the generator speed through the accelerator to improve the power generation efficiency. The transformer realizes the compliant conversion of electrical energy and ensures stable power output.

[0024] Preferably, an anemometer is installed on the outside of the power generation mechanism, a protective shell is installed on the outside of the power generation mechanism, a base is installed at the bottom of the tower, and fixing bolts are evenly arranged on the bottom of the base.

[0025] The anemometer monitors real-time wind speed, providing data for the operation and control of the power generation mechanism; the protective casing isolates the internal components of the power generation mechanism from the influence of the external environment; the base is fixed to the ground with fixing bolts, providing stable support for the tower, facilitating the optimization of power generation efficiency according to wind speed, protecting the power generation mechanism and extending its service life; it ensures the stability of the tower in strong winds and other environments, improving the overall safety factor of the equipment.

[0026] Compared with the prior art, the present invention provides a wind turbine blade and a generator, which have the following characteristics:

[0027] Beneficial effects:

[0028] The wind turbine blades and generator use the rotation of the blade assembly to force external air into the air intake port. The pneumatic valve can adjust the air intake volume according to the anti-freezing requirements. After the air passes through the air intake pipe, the heating element drives the heating element to heat the air and form a hot airflow. The hot airflow enters the three-way valve through the air intake head, and then passes through the hose and is sprayed out from the nozzle into the inner cavity of the blade assembly, effectively preventing the power generation mechanism and blades from freezing.

[0029] The wind turbine blades and generator have a gear ring that rotates with the blade assembly, driving the gear to rotate and controlling the three-way valve to switch the passage, so that the two sets of nozzles work alternately or in coordination, ensuring that the inner cavity of the blade assembly is heated evenly. The meshing and linkage between the gear ring and the gear improves the comprehensiveness and precision of the antifreeze range. Attached Figure Description

[0030] Figure 1 This is a front view of the present invention;

[0031] Figure 2 This is a schematic diagram of the external structure of the blade assembly of the present invention;

[0032] Figure 3 This is an external schematic diagram of the antifreeze mechanism of the present invention;

[0033] Figure 4 This is a partial cross-sectional view of the antifreeze mechanism of the present invention;

[0034] Figure 5 This is an external schematic diagram of the control mechanism of the present invention.

[0035] In the diagram: 1. Tower; 11. Base; 2. Power generation mechanism; 3. Gear ring; 4. Blade assembly; 41. Assembly flange; 42. Fixing component; 5. Anti-freeze mechanism; 51. Inlet pipe fitting; 52. Inlet port; 53. Heating element; 54. Heating element; 55. Protective shell; 6. Control mechanism; 61. Three-way valve; 62. Inlet head; 63. Hose fitting; 64. Nozzle; 65. Gear; 7. Nose cone fitting. Detailed Implementation

[0036] This invention provides a technical solution; please refer to [link / reference]. Figure 1 and Figure 2A wind turbine blade includes: a blade assembly 4 and a toothed ring 3, wherein the toothed ring 3 is disposed on the outside of the blade assembly 4, and an antifreeze mechanism 5 is disposed in the inner cavity of the blade assembly 4. The antifreeze mechanism 5 includes an air inlet pipe 51, the air inlet of the air inlet pipe 51 is connected to an air inlet port 52, and a pneumatic valve is disposed on the outside of the air inlet port 52. A heating element 53 is disposed on the top of the air inlet pipe 51, and a heating element 54 is connected to the output end of the heating element 53. The heating element 54 is embedded in the inner cavity of the tower 1, and a control mechanism 6 is connected to the air outlet end of the air inlet pipe 51.

[0037] Please see Figure 3 and Figure 4 The positional relationship between the blade assembly 4 and the toothed ring 3 ensures synchronized movement, providing a basis for linkage with the control mechanism 6. The components of the antifreeze mechanism 5 are sequentially connected to form a complete airflow path. The intake pipe 51 serves as the core channel, and its connection to the intake port 52, heating element 53, and control mechanism 6 ensures orderly airflow. The heating element 54 is embedded in the inner cavity of the tower 1, which not only utilizes the space of the tower 1 to save internal space on the blades but also facilitates connection with the power supply system, improving the overall structural compactness.

[0038] Please see Figure 5 The control mechanism 6 includes a three-way valve 61, the air inlet of the three-way valve 61 is connected to an air inlet head 62, the air inlet head 62 is connected to an air inlet pipe 51, and flexible hoses 63 are connected to both sides of the three-way valve 61. The nozzles 64 are connected to the outside of the two sets of flexible hoses 63 respectively. A gear 65 is connected to the outside of the control rod of the three-way valve 61, and the gear 65 meshes with the gear ring 3.

[0039] The three-way valve 61 connects to the hot airflow through the air inlet head 62, and the flexible hoses 63 on both sides can be flexibly arranged according to the internal structure of the blades to accurately deliver the hot airflow to the nozzles 64 in different areas. The meshing design of the gear 65 and the gear ring 3 directly converts the rotational motion of the blades into the control power of the three-way valve 61, without the need for additional drive components, thus achieving efficient energy utilization and precise synchronization of motion.

[0040] When the blade assembly 4 rotates during operation, it forces outside air into the bottom air inlet 52. Outside air enters through the air inlet 52, and the pneumatic valve adjusts the air intake according to the antifreeze requirements of the blade assembly 4. After entering the air inlet pipe 51, the heating element 53 drives the heating element 54 to heat the air, forming a hot airflow. The hot airflow enters the three-way valve 61 through the air inlet head 62, and then is sprayed out through the nozzle 64 via the hose 63 into the inner cavity of the blade assembly 4, preventing the generator mechanism 2 and the blades from freezing. Simultaneously, the gear ring 3 rotates with the blade assembly 4, driving the gear 65 to rotate, thereby controlling the three-way valve 61 to switch paths, allowing the two sets of nozzles 64 to work alternately or collaboratively, ensuring uniform heating of the inner cavity of the blade assembly 4. The hot airflow circulation achieves blade antifreeze, and the meshing linkage between the gear ring 3 and the gear 65 enhances the comprehensiveness and precision of the antifreeze range.

[0041] The pressure difference generated by the rotation of blade assembly 4 provides natural power for air intake, eliminating the need for additional air intake equipment and reducing energy consumption. The pneumatic valve dynamically adjusts the air intake volume according to antifreeze requirements, ensuring effective antifreeze while avoiding resource waste. When heating element 53 drives heating element 54, the heating intensity can be adjusted according to actual needs to maintain a stable hot airflow temperature. The alternating or coordinated modes of the two sets of nozzles 64 can specifically meet the antifreeze needs of different parts of the blades, enhancing the uniformity of hot airflow coverage. The meshing transmission between the gear ring 3 and gear 65 ensures precise matching between the switching of the three-way valve 61 and the blade rotation position, allowing the hot airflow to fully cover all areas of the blade's inner cavity.

[0042] The blade assembly 4 is provided with a fastener 42 on its exterior, and a mounting flange 41 is provided on the exterior of the fastener 42. Connecting bolts are provided on the exterior of the mounting flange 41.

[0043] The assembly flange 41 is fixed to the nose cone shroud 7 by connecting bolts. The fastener 42 reinforces the edge or key stress point of the blade assembly 4, forming a multi-fixed structure to ensure that the blade assembly 4 does not loosen or deform under high-speed rotation and strong airflow impact, thereby improving the stability of the connection and the structural strength, and extending the service life of the blade.

[0044] The fastener 42 reinforces the blade edges and stress points, dispersing stress to prevent localized damage, and forms a multi-fixing system with the mounting flange 41. The fit between the mounting flange 41 and the connecting bolts ensures connection strength and sealing, preventing external corrosion, while also ensuring the coaxiality of the blade assembly 4 and the nose cone shroud 7, reducing rotational vibration, and improving overall operational stability.

[0045] The inner cavity of the blade assembly 4 is provided with an assembly groove, the inside of which is connected to the outside of the antifreeze mechanism 5, and the inner cavity of the assembly groove is provided with reinforcing ribs.

[0046] The assembly slot provides precise installation positioning for the antifreeze mechanism 5. Reinforcing ribs are distributed in the inner cavity of the assembly slot to enhance the connection strength between the slot and the inner cavity of the blade assembly 4, preventing the antifreeze mechanism 5 from shifting due to vibration when the blades rotate. At the same time, the reinforcing ribs improve the deformation resistance of the inner cavity of the blade assembly 4 and adapt to the stress changes caused by airflow impact.

[0047] The assembly slot, with its precise dimensional design, provides a stable mounting base for the antifreeze mechanism 5, preventing loosening and displacement. The reinforcing ribs, through their rational distribution, enhance the connection strength between the slot and the blade's inner cavity, effectively resisting the centrifugal force and airflow impact during blade rotation, improving the overall structure's resistance to deformation, and ensuring the long-term stable operation of the antifreeze mechanism 5.

[0048] The top of the air intake pipe 51 is provided with a protective shell 55, which is located at the top of the inner cavity of the heating element 53. The protective shell 55 is provided with a control module inside, and a communication device is provided outside the control module.

[0049] The protective shell 55 isolates the control module from the influence of external dust and moisture. The control module receives signals from various sensors and regulates the operation of the antifreeze mechanism 5. The communication equipment transmits the operating data to the remote terminal, improving the working stability and lifespan of the control module, realizing intelligent control and remote monitoring of the antifreeze mechanism 5, and facilitating timely troubleshooting.

[0050] The protective casing 55 provides a protective barrier for the control module, isolating it from external interference and ensuring its stable operation. The control module receives sensor signals to achieve intelligent control of the anti-freezing mechanism 5, while the communication equipment establishes a remote monitoring bridge, transmitting operational data in real time to facilitate timely fault detection and handling, thereby improving equipment operation and maintenance efficiency.

[0051] The bottom of the inner cavity of the air inlet 52 is open, and a filter screen is installed in the inner cavity of the air inlet 52, with an air filter element installed outside the filter screen.

[0052] The wide-mouth design increases the air intake contact area and improves air intake efficiency; the filter screen and ventilation filter element filter particulate matter and impurities in the air layer by layer to ensure that the air entering the air intake pipe 51 is clean and to prevent impurities from clogging the heating element 53, nozzle 64 and other components, while ensuring that the air intake volume meets the antifreeze requirements.

[0053] The open design of the air intake port 52 increases the air intake efficiency by expanding the contact area. The dual filtration structure of the filter screen and the air filter element effectively removes impurities in the air, prevents component blockage, ensures smooth airflow, and ensures a stable air intake to meet antifreeze requirements.

[0054] The heating element 54 is made of carbon fiber heating tube, and the outer surface of the heating element 54 is coated with a high temperature resistant insulating layer. The nozzle 64 is a high pressure atomizing nozzle 64, and the meshing part of the gear 65 and the gear ring 3 is provided with a self-lubricating wear-resistant coating.

[0055] The carbon fiber heating tube has high heat conversion efficiency and can quickly heat the air; the high-temperature resistant insulation layer prevents leakage and ensures electrical safety; the high-pressure atomizing nozzle 64 atomizes the hot airflow into fine particles, increasing the contact area with the inner cavity of the blade; the self-lubricating wear-resistant coating reduces friction loss when the gear 65 meshes with the gear ring 3, improves heating efficiency, reduces energy consumption, and ensures uniform antifreeze effect; it also extends the service life of the gear 65 and gear ring 3 and reduces maintenance frequency.

[0056] Carbon fiber heating tubes enable rapid air heating thanks to their high-efficiency heat conversion capabilities, while a high-temperature resistant insulation layer ensures electrical safety. High-pressure atomizing nozzles 64 enhance heat exchange by refining hot air particles, improving antifreeze uniformity. A self-lubricating, wear-resistant coating reduces meshing loss between gears 65 and gear rings 3, extending service life and reducing maintenance requirements, while also improving transmission efficiency.

[0057] The intake pipe 51 is wrapped with an insulation layer made of polyurethane foam. A lightning arrester is installed on the outer surface of the blade assembly 4. The lightning arrester is connected to the bottom of the tower 1 through a wire. The flexible hose 63 is made of low-temperature resistant silicone material and has spiral metal reinforcing ribs on its outer wall. A temperature sensor is connected to the input end of the heating element 53. The temperature sensor is embedded in the inner wall of the blade assembly 4 and is electrically connected to the control module.

[0058] The polyurethane insulation layer reduces heat loss within the intake pipe 51, maintaining the temperature of the hot airflow; the lightning arrester directs lightning to the ground, preventing damage to the blades from lightning strikes; the low-temperature resistant silicone hose adapts to low-temperature environments, and the spiral metal reinforcing ribs prevent the hose from rupturing due to pressure or torsion; the temperature sensor monitors the inner wall temperature of the blade assembly 4 in real time, transmitting the data to the control module, which adjusts the power of the heating element 53 to reduce heat loss and improve antifreeze efficiency; it enhances the lightning protection safety of the blades and the durability of the hose; and it enables intelligent adjustment of heating based on the actual blade temperature, avoiding energy waste.

[0059] The polyurethane insulation layer effectively reduces heat loss from the intake pipe 51, maintaining a stable hot airflow temperature. The lightning arrester safely conducts lightning to the ground via a conductor, enhancing the blade's lightning protection. The low-temperature resistant silicone hose, combined with spiral metal reinforcing ribs, adapts to low-temperature environments while resisting pressure and torsional forces, ensuring the hose's durability. The temperature sensor and control module work together to intelligently adjust heating power, reducing energy waste and improving anti-freeze efficiency.

[0060] A wind turbine, employing the aforementioned wind turbine blade, includes a tower 1 and a power generation mechanism 2. The power generation mechanism 2 is mounted on the upper end of the tower 1, and a nose cone shroud 7 is connected to the output end of the power generation mechanism 2. Blade groups 4 are evenly arranged on the outside of the nose cone shroud 7, and a toothed ring 3 is connected to the power generation mechanism 2.

[0061] Under the action of wind, the blade assembly 4 drives the nose cone shroud 7 to rotate, which in turn drives the power generation mechanism 2 to generate electricity; the gear ring 3 moves synchronously with the power generation mechanism 2, providing power to the gear 65 of the control mechanism 6, realizing the coordination between the antifreeze mechanism 5 and the blade rotation. The blade assembly 4 is evenly distributed to ensure force balance and improve power generation efficiency; the linkage between the gear ring 3 and the power generation mechanism 2 enables the antifreeze mechanism 5 to adapt to the rotation state of the blade, ensuring that the antifreeze effect is synchronized with the power generation process.

[0062] The blade assembly 4 is evenly distributed outside the nose cone shroud 7 to ensure force balance, reduce rotational vibration, and improve the operational stability and power generation efficiency of the power generation mechanism 2. The gear ring 3 moves synchronously with the power generation mechanism 2 to provide power to the control mechanism 6, realizing the coordinated operation of the antifreeze mechanism 5 and the blade rotation, ensuring that the antifreeze effect and the power generation process are matched in real time.

[0063] The inner cavity of tower 1 is equipped with a transformer and control device, and the inner cavity of power generation mechanism 2 is equipped with a generator. The input end of the generator is connected to a power transmission shaft, and the other end of the power transmission shaft is connected to an accelerator. The input end of the accelerator is connected to the nose cone cover 7. The generator and the transformer are connected by a line.

[0064] The nose cone shroud 7 drives the accelerator to rotate. After the accelerator increases the speed, it transmits the power to the generator through the power transmission shaft, enabling the generator to generate electricity efficiently. The electrical energy generated by the generator is transmitted to the transformer through the line and converted into a voltage that meets the grid connection standard. The control device coordinates the operation of each component and increases the generator speed through the accelerator to improve the power generation efficiency. The transformer realizes the compliant conversion of electrical energy and ensures stable power output.

[0065] The nose cone assembly 7 drives the accelerator, increasing its speed to ensure efficient generator operation. The electrical energy generated by the generator is converted into a standard voltage by a transformer, ensuring stable power output. The control device coordinates the operation of all components, optimizing speed and power output to improve overall power generation efficiency and operational stability.

[0066] An anemometer is installed on the outside of the power generation mechanism 2, and a protective shell is installed on the outside of the power generation mechanism 2. A base 11 is installed at the bottom of the tower 1, and fixing bolts are evenly arranged at the bottom of the base 11.

[0067] The anemometer monitors real-time wind speed, providing data for the operation and control of the power generation mechanism 2; the protective shell isolates the external environment from the influence of the internal components of the power generation mechanism 2; the base 11 is fixed to the ground by fixing bolts, providing stable support for the tower 1, facilitating the optimization of power generation efficiency according to wind speed, protecting the power generation mechanism 2 and extending its service life; ensuring the stability of the tower 1 in strong wind and other environments, and improving the overall safety factor of the equipment.

[0068] The anemometer provides real-time data support for the operation and control of the power generation mechanism 2, facilitating the optimization of power generation efficiency based on wind speed. The protective casing isolates the equipment from external environmental influences, extending the service life of the internal components of the power generation mechanism 2. The base 11 is securely connected to the ground via fixing bolts, providing solid support for the tower 1, ensuring the stability of the equipment in environments such as strong winds, and improving the overall safety factor.

[0069] In this design, the blade assembly 4 rotates under the action of wind, which drives the nose cone shroud 7 to rotate, and in turn drives the accelerator in the inner cavity of the power generation mechanism 2. The accelerator drives the generator to generate electricity through the power transmission shaft. The electrical energy is transmitted to the transformer in the tower 1 through the line and converted into standard voltage. The control device coordinates the operation of each component. The blade assembly 4 is evenly distributed on the outside of the nose cone shroud 7 to balance the force. The anemometer on the outside of the power generation mechanism 2 monitors the wind speed. The protective shell isolates the external influence. The base 11 at the bottom of the tower 1 is fixed by fixing bolts to ensure stability. The mounting flange 41 of the blade assembly 4 is fixed to the nose cone shroud 7 by connecting bolts. The fixing part 42 reinforces the blade edge and stress point. The lightning protection lightning rod on the outer surface conducts lightning into the ground.

[0070] When the blade assembly 4 rotates, it forces air into the intake port 52. Its wide-mouth design improves intake efficiency. The filter screen and ventilation filter element filter impurities, and the pneumatic valve regulates the intake volume. After the air enters the intake pipe 51, the external insulation layer reduces heat loss. The heating element 53 is controlled by the temperature sensor on the inner wall of the blade assembly 4. The sensor transmits the data to the control module in the protective shell 55. The module adjusts the power of the heating element 53, and the communication equipment transmits the data to the remote terminal. The heating element 53 drives the heating element 54 made of carbon fiber heating tube to heat the air. Its surface high-temperature resistant insulation layer ensures safety. The resulting hot airflow enters the three-way valve 61 through the intake head 62.

[0071] Hot air flows through a low-temperature resistant silicone hose 63 and is sprayed into the inner cavity of the blade assembly 4 by a high-pressure atomizing nozzle 64 to prevent icing. An anti-freezing mechanism 5 is positioned in the mounting groove within the blade assembly 4, and reinforcing ribs within the groove enhance connection strength and resistance to deformation. Simultaneously, the gear ring 3, connected to the power generation mechanism 2, rotates with the blade assembly 4, driving a gear 65 to control a three-way valve 61 to switch pathways, allowing the two nozzles 64 to work alternately or in tandem, ensuring uniform heating of the blade inner cavity and achieving synergy between anti-freezing and power generation.

Claims

1. A wind turbine blade, comprising: The blade assembly (4) and the toothed ring (3), with the toothed ring (3) disposed outside the blade assembly (4), characterized in that: the inner cavity of the blade assembly (4) is provided with an antifreeze mechanism (5), the antifreeze mechanism (5) includes an air intake pipe (51), the air intake port of the air intake pipe (51) is connected to an air intake port (52), and a pneumatic valve is disposed outside the air intake port (52), a heating element (53) is disposed at the top of the air intake pipe (51), a heating element (54) is connected to the output end of the heating element (53), the heating element (54) is embedded in the inner cavity of the tower (1), and a control mechanism (6) is connected to the air outlet end of the air intake pipe (51); The control mechanism (6) includes a three-way valve (61), the air inlet of the three-way valve (61) is connected to an air inlet head (62), the air inlet head (62) is connected to an air inlet pipe (51), both sides of the three-way valve (61) are connected to hose fittings (63), the outside of the two sets of hose fittings (63) are respectively connected to nozzles (64), and the control rod of the three-way valve (61) is connected to a gear (65), which meshes with a gear ring (3).

2. A wind turbine blade according to claim 1, characterized in that: The blade assembly (4) is provided with a fastener (42) on its exterior, and an assembly flange (41) is provided on its exterior, with connecting bolts on its exterior.

3. A wind turbine blade according to claim 1, characterized in that: The inner cavity of the blade assembly (4) is provided with an assembly groove, the inside of which is connected to the outside of the antifreeze mechanism (5), and the inner cavity of the assembly groove is provided with reinforcing ribs.

4. A wind turbine blade according to claim 1, characterized in that: The top of the air intake pipe (51) is provided with a protective shell (55), which is located at the top of the inner cavity of the heating element (53). The protective shell (55) is provided with a control module inside and a communication device is provided outside the control module.

5. A wind turbine blade according to claim 1, characterized in that: The bottom of the inner cavity of the air inlet (52) is wide-mouthed, and a filter screen is provided in the inner cavity of the air inlet (52), with an air filter element provided outside the filter screen.

6. A wind turbine blade according to claim 1, characterized in that: The heating element (54) is made of carbon fiber heating tube, and the outer surface of the heating element (54) is coated with a high temperature resistant insulating layer. The nozzle (64) is a high pressure atomizing nozzle. The meshing part of the gear (65) and the gear ring (3) is provided with a self-lubricating wear-resistant coating.

7. A wind turbine blade according to claim 1, characterized in that: The air intake pipe (51) is wrapped with an insulation layer made of polyurethane foam. The outer surface of the blade assembly (4) is provided with a lightning arrester, which is connected to the bottom of the tower (1) via a wire. The flexible hose (63) is made of low-temperature resistant silicone material, and the outer wall of the flexible hose (63) is provided with a spiral metal reinforcing rib. The input end of the heating element (53) is connected to a temperature sensor, which is embedded in the inner wall of the blade assembly (4) and electrically connected to the control module.

8. A wind turbine, employing a wind turbine blade as described in any one of claims 1-7, comprising a tower (1) and a power generation mechanism (2), wherein the power generation mechanism (2) is mounted on the upper end of the tower (1), characterized in that: The output end of the power generation mechanism (2) is connected to a nose cone cover (7), the blade group (4) is evenly arranged on the outside of the nose cone cover (7), and the toothed ring (3) is connected to the power generation mechanism (2).

9. A wind turbine blade and generator according to claim 8, characterized in that: The inner cavity of the tower (1) is equipped with a transformer and control device, and the inner cavity of the power generation mechanism (2) is equipped with a generator. The input end of the generator is connected to a power transmission shaft, and the other end of the power transmission shaft is connected to an accelerator. The input end of the accelerator is connected to the nose cone cover (7), and the generator and the transformer are connected by a line.

10. A wind turbine blade and generator according to claim 8, characterized in that: The power generation mechanism (2) is equipped with an anemometer on its exterior and a protective shell on its exterior. The tower (1) is equipped with a base (11) at its bottom and fixing bolts are evenly distributed on the bottom of the base (11).

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