A multifunctional sensing device installed on wind turbine blades

Abstract

This application relates to the field of wind power generation technology and discloses a multifunctional sensing device installed on a wind turbine blade, including an adhesive plate. An outer housing is provided on the surface of the adhesive plate, and a limiting component is provided on the surface of the adhesive plate. The limiting component includes four silicone rubber sleeves located at the corners of the outer housing. The four corners of the outer housing are respectively inserted into the interior of the silicone rubber sleeves, and the bottom ends of the four silicone rubber sleeves are fixedly connected to the adhesive plate. The surfaces of the silicone rubber sleeves and the outer housing are in contact. This device enables monitoring of multiple parameters such as icing, temperature, and attitude, and features efficient energy management and convenient disassembly and recycling. It is suitable for intelligent operation and maintenance of wind turbine blades.

Description

Technical Field

[0001] This application relates to the field of wind power generation technology, specifically a multifunctional sensing device installed on wind turbine blades. Background Technology

[0002] With the rapid development of the wind power industry, real-time monitoring of the operating status of wind turbine blades has become a key link in ensuring power generation efficiency and equipment safety.

[0003] Currently, most common wind turbine blade monitoring devices on the market are installed using traditional bolt fixing or adhesive bonding methods. Traditional bolt fixing requires drilling on the blade surface, which damages the composite material structure of the blade, leading to stress concentration and increased risk of cracking.

[0004] While conventional adhesive bonding avoids drilling damage, the lack of a reliable mechanical fixing structure makes it difficult to disassemble the monitoring device when wind turbine blades are damaged and need to be replaced. This results in undamaged components being scrapped along with the damaged blades, causing serious waste of resources. Utility Model Content

[0005] To address the shortcomings of existing technologies, this application provides a multi-functional sensing device installed on wind turbine blades, which enables monitoring of multiple parameters such as icing, temperature, and attitude. It features efficient energy management and convenient disassembly and recycling, and is suitable for intelligent operation and maintenance of wind turbine blades. This solves the problem of undamaged parts being scrapped along with damaged blades, resulting in serious resource waste.

[0006] To achieve the above objectives, this application provides the following technical solution: a multifunctional sensing device installed on a wind turbine blade, comprising an adhesive plate, an outer housing disposed on the surface of the adhesive plate, a limiting component disposed on the surface of the adhesive plate, the limiting component comprising four silicone rubber sleeves disposed at the corners of the outer housing, the four corners of the outer housing being respectively inserted into the inside of the silicone rubber sleeves, the bottom ends of the four silicone rubber sleeves being fixedly connected to the adhesive plate, the silicone rubber sleeves and the surface of the outer housing being in contact, and a transparent sleeve being fixedly fitted on the surface of the outer housing.

[0007] The above solution utilizes a silicone rubber sheath to form a limiting component, which, by wrapping the corners of the outer casing and connecting adhesive plates, achieves device fixation and cushioning.

[0008] Furthermore, the silicone rubber sheath has two T-shaped inserts fixedly connected inside. The T-shaped inserts are inserted into T-shaped slots opened on the surface of the outer housing, and the T-shaped inserts are slidably connected to the outer housing.

[0009] Through the above solution, the silicone rubber sheath enhances the stability and detachability of the fixing structure by slidingly engaging the T-shaped plug with the T-shaped slot of the outer housing.

[0010] Furthermore, an arc-shaped insert is inserted into an arc-shaped slot near the corner on the upper surface of the outer casing, and the arc-shaped insert is fixedly connected to the silicone rubber sheath.

[0011] The above solution, which uses an arc-shaped insert and an arc-shaped slot, further enhances the connection stability between the silicone rubber sheath and the outer casing.

[0012] Furthermore, a flexible PCB board is fixedly connected inside the outer casing. A battery, an ice measurement data acquisition box, a wireless transmission module, a six-axis sensor, an ice sensor, a temperature sensor, and a power management module are installed on the surface of the flexible PCB board. A flexible solar panel is installed in the mounting groove opened on the surface of the outer casing.

[0013] The above scheme forms the basic structure of the device through adhesive plates and outer casing, and integrates multiple modules with flexible PCB boards to achieve multi-functional monitoring. The outer casing is equipped with mounting slots to adapt to flexible solar panels for power supply.

[0014] Furthermore, the detection end face of the temperature sensor is inserted into a through groove opened on the side of the outer housing.

[0015] With the above solution, the temperature sensor can directly detect the external temperature by exposing the detection end face through the side groove of the outer housing.

[0016] Furthermore, the transmitting end face of the icing sensor is inserted into a circular hole opened on the top of the outer casing.

[0017] With the above scheme, the icing sensor's transmitting end face extends through the round hole at the top of the outer casing, making it easy to transmit detection signals to the blade surface.

[0018] Furthermore, the ice measurement data acquisition box includes a 4G module, a LoRa+ Star Flash wireless communication receiving module, a main control unit, a ring network communication module, and an RS485 communication module.

[0019] Through the above scheme, the ice measurement data acquisition box integrates multiple communication modules and a main control unit to realize multi-mode data transmission and processing.

[0020] Furthermore, the corners of the silicone rubber sheath are all rounded, and the silicone rubber sheath is made of polydimethylsiloxane, zinc oxide and vulcanizing agent. The connection between the transparent sleeve and the silicone rubber sheath is smooth, and four columns are fixedly connected to the upper surface of the adhesive plate.

[0021] The above solution uses a specific material formula for the silicone rubber sheath, with rounded corners to improve weather resistance, reduce stress concentration, and optimize aerodynamic performance. Four pillars are inserted into round holes inside the transparent sheath, and the outer casing is located between the four pillars. The position of the outer casing is restricted by the four pillars, ensuring the robustness of the outer casing.

[0022] Compared with the prior art, the technical solution of this application has the following beneficial effects: This multi-functional sensing device installed on wind turbine blades has an outer casing protecting the internal flexible PCB board and various modules. The flexible solar panel converts light energy into electrical energy through the photovoltaic effect, powering the system and charging the battery. The battery stores electrical energy, ensuring continuous operation of the system in the absence of sunlight. The icing data acquisition box collects and processes data from various sensors and transmits it to the cloud server and wind farm host via multi-mode communication technology. The wireless transmission module wirelessly transmits sensor data to the icing data acquisition box. The six-axis sensor senses the blade's rotational angular velocity and tilt angle. Dynamic parameters are used to determine the blade's operating attitude. The icing sensor transmitter is exposed through a circular hole at the top of the outer casing. It uses the signal blocking principle to detect the thickness and coverage of the ice layer, thus achieving icing early warning. The temperature sensor's detection end face contacts the outside through a groove on the side of the outer casing to measure the blade surface or ambient temperature in real time. The power management module regulates power distribution, manages solar panel charging and battery discharging, and ensures stable system power. The flexible PCB board serves as the core carrier, integrating the battery, icing data acquisition box, wireless transmission module, six-axis sensor, icing sensor, temperature sensor, and power management module to achieve signal transmission and module collaborative operation.

[0023] The limiting component fixes the relative position of the outer housing and the adhesive plate, providing cushioning and mechanical locking, and facilitating disassembly and recycling. Attached Figure Description

[0024] Figure 1 This is a top view of the overall structure of this utility model;

[0025] Figure 2 This is a three-dimensional schematic diagram of the overall structure of this utility model;

[0026] Figure 3 This is a structural diagram of the outer casing of this utility model;

[0027] Figure 4 This is a sectional view of the outer casing of this utility model;

[0028] Figure 5 This is a schematic diagram of the structure of the silicone rubber sheath and transparent sleeve of this utility model;

[0029] Figure 6 In this utility model Figure 4 Enlarged schematic diagram of the structure at point A in the middle;

[0030] Figure 7 This is a schematic diagram of the transparent sleeve structure in this utility model;

[0031] Figure 8 This is a diagram of the control system of this utility model;

[0032] In the diagram: 1. Adhesive board; 2. Outer casing; 3. Flexible solar panel; 4. Battery; 5. Ice measurement data acquisition box; 6. Wireless transmission module; 7. Six-axis sensor; 8. Icing sensor; 9. Limiting component; 91. Silicone rubber sleeve; 92. T-shaped insert; 93. T-shaped slot; 94. Arc-shaped insert; 95. Arc-shaped slot; 96. Transparent sleeve; 10. Temperature sensor; 11. Power management module; 12. Flexible PCB board. Detailed Implementation

[0033] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0034] Please see Figures 1 to 7 This embodiment of a multifunctional sensing device installed on a wind turbine blade includes an adhesive plate 1, an outer housing 2 on the surface of the adhesive plate 1, and a limiting component 9 on the surface of the adhesive plate 1. The limiting component 9 includes four silicone rubber sleeves 91 located at the corners of the outer housing 2. The four corners of the outer housing 2 are respectively inserted into the inside of the silicone rubber sleeves 91. The bottom ends of the four silicone rubber sleeves 91 are fixedly connected to the adhesive plate 1. The silicone rubber sleeves 91 and the surface of the outer housing 2 are in contact. A transparent sleeve 96 is fixedly fitted on the surface of the outer housing 2 and is fixedly connected to the adhesive plate 1.

[0035] The silicone rubber sheath 91 has two T-shaped inserts 92 fixedly connected inside. The T-shaped inserts 92 are inserted into the T-shaped slots 93 opened on the surface of the outer housing 2, and the T-shaped inserts 92 and the outer housing 2 are slidably connected.

[0036] An arc-shaped insert 94 is inserted into an arc-shaped slot 95 located near the corner on the upper surface of the outer casing 2. The arc-shaped insert 94 and the silicone rubber sleeve 91 are fixedly connected.

[0037] The outer casing 2 has a flexible PCB board 12 fixedly connected inside. The surface of the flexible PCB board 12 is equipped with a battery 4, an ice measurement data acquisition box 5, a wireless transmission module 6, a six-axis sensor 7, an ice sensor 8, a temperature sensor 10, and a power management module 11. A flexible solar panel 3 is installed in the mounting groove on the surface of the outer casing 2.

[0038] The detection end face of the temperature sensor 10 is inserted into a through groove opened on the side of the outer housing 2.

[0039] The emitting end face of the icing sensor 8 is inserted into a circular hole opened on the top of the outer housing 2.

[0040] The ice measurement data acquisition box 5 includes a 4G module, a LoRa+ Star Flash wireless communication receiver module, a main control unit, a ring network communication module, and an RS485 communication module.

[0041] The corners of the silicone rubber sheath 91 are all rounded. The silicone rubber sheath 91 is made of polydimethylsiloxane, zinc oxide and vulcanizing agent. The connection between the transparent sleeve 96 and the silicone rubber sheath 91 is smooth. Four columns are fixedly connected to the upper surface of the adhesive plate 1.

[0042] This embodiment presents a multifunctional sensing device installed on a wind turbine blade. An outer casing 2 protects the internal flexible PCB board and various modules. A flexible solar panel 3 converts light energy into electrical energy through the photovoltaic effect, powering the system and charging the battery. The battery 4 stores electrical energy, ensuring continuous operation of the system in the absence of sunlight. An icing data acquisition box 5 collects and processes data from various sensors and transmits it to a cloud server and the wind farm host via multi-mode communication technology. A wireless transmission module 6 wirelessly transmits sensor data to the icing data acquisition box. A six-axis sensor 7 senses dynamic parameters such as the blade's rotational angular velocity and tilt angle to determine the blade's movement. The icing sensor 8, with its transmitter exposed through a circular hole at the top of the outer casing, detects the thickness and coverage of the ice layer using the signal blocking principle, thus providing an icing warning. The temperature sensor 10, with its detection end face exposed to the outside through a groove on the side of the outer casing, measures the surface temperature of the blade or the ambient temperature in real time. The power management module 11 regulates power distribution, manages solar panel charging and battery discharging, and ensures stable system energy. The flexible PCB board 12, as the core carrier, integrates the battery, icing data acquisition box, wireless transmission module, six-axis sensor, icing sensor, temperature sensor, and power management module, enabling signal transmission and module collaboration.

[0043] The limiting component 9 fixes the relative position of the outer housing and the adhesive plate, providing cushioning and mechanical locking, and facilitating disassembly and recycling.

[0044] The working principle of the above embodiment is as follows: the bottom of the adhesive plate 1 is coated with epoxy resin adhesive, and its high-strength adhesion and weather resistance are used to adhere the entire device to the leading edge of the wind turbine blade surface, which is prone to icing.

[0045] The outer housing 2 is connected to the adhesive plate 1 through the limiting component 9. The silicone rubber sleeve 91 wraps around the four corners of the outer housing 2 to provide initial positioning and buffering. The T-shaped plug 92 and the T-shaped slot 93, and the arc-shaped plug 94 and the arc-shaped slot 95 form a mechanical lock to restrict the translation and rotation of the outer housing 2 and ensure structural stability under vibration environment.

[0046] The flexible solar panel 3 is installed in the mounting groove on the surface of the outer casing 2. It converts light energy into electrical energy through the photovoltaic effect. The electrical energy is regulated by the power management module 11, which prioritizes charging the battery 4. The remaining electrical energy is directly supplied to each power-consuming module. The battery 4 is a Panasonic lithium battery.

[0047] When there is sufficient sunlight, the solar panel directly supplies power, and the battery 4 is in a float charging state. At night or on cloudy days, the battery 4 outputs DC power stably through the power management module 11 to ensure continuous operation of the system. The icing sensor 8 adopts a wireless transmitter-receiver unit structure. The detection end of the icing sensor 8 is exposed through a round hole opened on the top of the outer shell 2, so that the transmitter of the icing sensor 8 can directly face the airflow direction to ensure the sensitivity of icing detection. Ice acts as a medium to block signal transmission. The receiving unit close to the transmitter is sensitive to thin ice and triggers an early warning. The receiving unit at the far end needs to be fully covered by thick ice to trigger a signal change. The ice thickness and coverage area are calculated by the signal difference of multiple units.

[0048] The detection end face of the temperature sensor 10 is in direct contact with the outside air through the side groove of the outer housing 2, and provides real-time feedback on the weather temperature. A circular hole is reserved on the transparent sleeve 96 through which the detection end face of the temperature sensor 10 passes.

[0049] The six-axis sensor 7 does not need to contact the external environment. It senses dynamic parameters such as the blade's rotational angular velocity and tilt angle through a MEMS chip to determine whether the blade's running posture is abnormal.

[0050] Raw data such as ice thickness, temperature, and orientation are collected by sensor modules on flexible PCB board 12 and transmitted to ice measurement data acquisition box 5 through onboard circuitry.

[0051] The LoRa+ Star Flash wireless communication receiver module receives LoRa+ Star Flash wireless signals from various sensors, enabling multi-directional data aggregation;

[0052] The 4G module uploads the processed data to the cloud server, supporting remote real-time monitoring;

[0053] The communication module feeds data back to the wind farm main unit via wired connection, enabling local closed-loop control.

[0054] The main control unit performs fusion calculations on multi-source data and filters noise through algorithms to ensure the reliability of the output data;

[0055] The T-shaped insert 92 is inserted into the T-shaped slot 93, and the arc-shaped insert 94 is embedded in the arc-shaped slot 95. With the elastic clamping force of the silicone rubber sleeve 91, the device is ensured not to loosen during operation. When the outer housing 2 needs to be recycled, the connection between the silicone rubber sleeve 91 and the adhesive plate 1 is cut off with a knife, so that the T-shaped insert 92 slides out along the T-shaped slot 93 and the arc-shaped insert 94 disengages from the arc-shaped slot 95, thereby realizing the disassembly of the outer housing 2.

[0056] The separated outer casing 2 can be recycled as a whole, and the internal components can be reused, reducing operation and maintenance costs;

[0057] The rounded corners of the silicone rubber sheath 91 reduce airflow disturbance, the flexible solar panel 3 fits seamlessly with the mounting groove, and the surface is smoothed to ensure the aerodynamic efficiency of the generator blades.

[0058] The silicone rubber sheath 91 is made of polydimethylsiloxane, zinc oxide and vulcanizing agent to ensure the high temperature resistance of the silicone rubber sheath 91;

[0059] The outer casing has an IP65 protection rating and is sealed with epoxy resin to ensure a secure connection between the casing and the generator blades.

[0060] Four pillars are fixedly connected to the upper surface of the adhesive plate 1. The four pillars are inserted into the round holes opened inside the transparent sleeve 96, and the outer shell 2 is located between the four pillars. Under the action of the four pillars, the position of the outer shell 2 is restricted, ensuring the firmness of the outer shell 2.

[0061] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0062] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multifunctional sensing device installed on a wind turbine blade, comprising an adhesive plate (1), characterized in that: The adhesive plate (1) is provided with an outer shell (2) on its surface. The adhesive plate (1) is provided with a limiting component (9) on its surface. The limiting component (9) includes four silicone rubber sleeves (91) provided at the corners of the outer shell (2). The four corners of the outer shell (2) are respectively inserted into the inside of the silicone rubber sleeves (91). The bottom ends of the four silicone rubber sleeves (91) are fixedly connected to the adhesive plate (1). The silicone rubber sleeves (91) and the surface of the outer shell (2) are in contact. The surface of the outer shell (2) is fixedly covered with a transparent sleeve (96).

2. The multifunctional sensing device installed on a wind turbine blade according to claim 1, characterized in that: The silicone rubber sheath (91) has two T-shaped inserts (92) fixedly connected inside. The T-shaped inserts (92) are inserted into the T-shaped slots (93) opened on the surface of the outer housing (2). The T-shaped inserts (92) and the outer housing (2) are slidably connected.

3. The multifunctional sensing device installed on a wind turbine blade according to claim 1, characterized in that: An arc-shaped insert (94) is inserted into an arc-shaped slot (95) near the corner on the upper surface of the outer casing (2), and the arc-shaped insert (94) is fixedly connected to the silicone rubber sleeve (91).

4. A multifunctional sensing device installed on a wind turbine blade according to claim 1, characterized in that: The outer casing (2) is internally fixedly connected to a flexible PCB board (12). The surface of the flexible PCB board (12) is equipped with a battery (4), an ice measurement data acquisition box (5), a wireless transmission module (6), a six-axis sensor (7), an icing sensor (8), a temperature sensor (10), and a power management module (11). A flexible solar panel (3) is installed in the mounting groove on the surface of the outer casing (2).

5. A multifunctional sensing device installed on a wind turbine blade according to claim 4, characterized in that: The detection end face of the temperature sensor (10) is inserted into a through slot opened on the side of the outer housing (2).

6. A multifunctional sensing device installed on a wind turbine blade according to claim 4, characterized in that: The icing sensor (8) is inserted into a circular hole at the top of the outer housing (2).

7. A multifunctional sensing device installed on a wind turbine blade according to claim 4, characterized in that: The ice measurement data acquisition box (5) includes a 4G module, a lora+ star flash wireless communication receiving module, a main control unit, a ring network communication module and an RS485 communication module.

8. A multifunctional sensing device installed on a wind turbine blade according to claim 1, characterized in that: The corners of the surface of the silicone rubber sheath (91) are all rounded, the connection between the transparent sleeve (96) and the silicone rubber sheath (91) is smooth, and four columns are fixedly connected to the upper surface of the adhesive plate (1).

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