CN117287339A - Wind generating set, blade, pneumatic accessory and manufacturing method thereof - Google Patents

Abstract

This application provides a wind turbine, a blade, a pneumatic accessory and a manufacturing method thereof. The pneumatic accessory includes a thermoplastic part and a conductive part; the thermoplastic part is configured to produce plastic deformation when heated; the conductive part is in contact with the thermoplastic part Connected, the conductive member is configured to generate heat when energized. The pneumatic accessories provided by this application are conducive to improving the convenience of modifying the pneumatic accessories and facilitating the installation of the pneumatic accessories and the blade body. It is conducive to simplifying the installation process and connection structure of the pneumatic accessories and the blade body, and is conducive to improving the connection between the pneumatic accessories and the blade body. The connection reliability of the blade body.

Description

Wind turbine generator set, blades, pneumatic accessories and manufacturing methods thereof

Technical field

The present application belongs to the field of wind power technology, and in particular relates to a wind turbine generator set, blades, pneumatic accessories and manufacturing methods thereof.

Background technique

Wind energy is a clean and renewable energy. As the global energy shortage problem becomes increasingly prominent, its importance is also increasing. Countries around the world are constantly increasing the research and application of wind resources. As a necessary equipment for converting wind energy into electrical energy, wind turbines have been widely used at home and abroad. The blades of wind turbines are the main components that convert wind energy into kinetic energy. The blades usually include aerodynamic accessories with specific shapes on the outer surface to improve the aerodynamic performance of the blades or reduce the noise of the blades.

After the pneumatic attachment is processed and formed, its shape cannot be changed, or the modification process is complicated. Therefore, there is an urgent need for a pneumatic attachment that is easy to modify.

Contents of the invention

Embodiments of the present application provide a wind turbine generator set, a blade, a pneumatic accessory and a manufacturing method thereof to facilitate the modification of the pneumatic accessory.

In a first aspect, this application provides a pneumatic accessory. The pneumatic accessory includes a thermoplastic part and a conductive part; the thermoplastic part is configured to produce plastic deformation when heated; the conductive part is in contact with the thermoplastic part, and the conductive part is configured as Can generate heat when powered on.

In some embodiments, the thermoplastic part has a receiving cavity, and at least part of the conductive part is filled in the receiving cavity.

In some embodiments, the pneumatic accessory includes a plurality of thermoplastic parts, and the plurality of thermoplastic parts are welded and connected.

In some embodiments, each thermoplastic element is in contact connection with at least one electrically conductive element.

In some embodiments, the material of the thermoplastic part includes polymethyl methacrylate, polybutylene terephthalate, polyethylene, polyvinyl chloride, polystyrene, polyamide, polyoxymethylene, polycarbonate, poly At least one of phenylene ether, polysulfone and rubber.

In a second aspect, an embodiment of the present application uses a blade. The blade includes at least one aerodynamic accessory provided in any of the above embodiments and a blade body. The aerodynamic accessory is connected to the surface of the blade body.

In some embodiments, the aerodynamic attachment is welded to the surface of the blade body.

In some embodiments, the blade body includes opposite windward and leeward surfaces, and opposite leading and trailing edges along the chord direction of the blade; at least one aerodynamic attachment is connected to the windward surface; and/or, at least one aerodynamic attachment is connected to the rear edge.

In a third aspect, embodiments of the present application provide a wind turbine generator including the blades provided in any of the above embodiments.

In a fourth aspect, embodiments of the present application provide a manufacturing method for pneumatic accessories, including: obtaining a thermoplastic part and a conductive part, the conductive part is contact-connected to the thermoplastic part, the conductive part is configured to generate heat when energized, and the heat The plastic part is configured to produce plastic deformation when heated; the conductive part is energized, and a preset die is used to pressurize the thermoplastic part to obtain a pneumatic accessory of a preset shape.

In some embodiments, obtaining the thermoplastic part and the conductive part includes: laying out the fiber and the conductive part in the mold, and introducing the liquid thermoplastic material into the mold; heating the mold, and chemical reaction occurs between the fiber and the liquid thermoplastic material to form Solid thermoplastic parts, conductive parts are in contact with the thermoplastic parts.

In some embodiments, laying out the fibers and conductive parts in the mold, and introducing the liquid thermoplastic material into the mold includes: laying out the fibers and the conductive parts in the mold; and introducing the liquid thermoplastic material into the mold.

In some embodiments, laying out the fibers and conductive parts in the mold, and introducing the liquid thermoplastic material into the mold includes: pre-impregnating the liquid thermoplastic material into the fibers; laying out the conductive parts and the fibers pre-impregnated with the thermoplastic material into the mold. in the mold.

The wind turbine generator set, blades, pneumatic accessories and manufacturing method thereof provided by the embodiments of the present application are provided by arranging the pneumatic accessories to include thermoplastic parts and conductive parts, so that when the conductive parts are energized, the heat generated by the conductive parts affects the thermoplastic The parts are heated, and the shape of the pneumatic accessories is reshaped in the molten state of the thermoplastic parts, which is conducive to improving the convenience of modification of the pneumatic accessories, and is convenient for the installation of the pneumatic accessories and the blade body, and is conducive to simplifying the pneumatic accessories and the blade body. The installation process and connection structure are improved, and it is conducive to improving the connection reliability of the pneumatic accessories and the blade body.

Description of drawings

In order to explain the technical solutions of the embodiments of the present application more clearly, the drawings required to be used in the embodiments of the present application will be briefly introduced below. Obviously, the drawings in the following description are only some implementations recorded in the present application.

For example, for those of ordinary skill in the art, other drawings can be obtained based on these drawings without exerting creative efforts.

Figure 1 is a schematic structural diagram of a pneumatic accessory provided by an embodiment of the present application;

Figure 2 is a schematic cross-sectional structural diagram of a pneumatic accessory provided by an embodiment of the present application;

Figure 3 is a schematic diagram of the molding structure of the pneumatic accessory provided by the embodiment of the present application;

Figure 4 is a schematic cross-sectional structural diagram of a blade provided by an embodiment of the present application;

Figure 5 is a schematic structural diagram of a wind turbine provided by an embodiment of the present application;

Figure 6 is a flow chart of a manufacturing method of a pneumatic accessory provided by an embodiment of the present application;

Figure 7 is a flow chart of another manufacturing method of pneumatic accessories provided by the embodiment of the present application;

Figure 8 is a flow chart of yet another manufacturing method of pneumatic accessories provided by the embodiment of the present application;

Figure 9 is a flow chart of yet another method of manufacturing a pneumatic accessory provided by an embodiment of the present application.

In the drawings, the figures are not necessarily drawn to scale.

The reference numbers in the specific implementation are as follows:

10. Blades;

11. Pneumatic accessories; 111. Thermoplastic parts; 111a. Accommodation cavity; 112. Conductive parts;

12. Blade body; 12a, windward side; 12b, leeward side; 12c, leading edge; 12d, trailing edge;

20. Press mold;

100. Wind turbine.

Detailed ways

Features and exemplary embodiments of various aspects of the present application will be described in detail below. In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be described in further detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described here are only intended to explain the application, but not to limit the application. It will be apparent to one skilled in the art that the present application may be practiced without some of these specific details. The following description of embodiments is merely intended to provide a better understanding of the present application by illustrating examples thereof.

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

It should be noted that the terms "upper", "lower", "front", "back", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description, rather than indicating or It is implied that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore is not to be construed as a limitation of the patent.

It should also be noted that, unless otherwise clearly stated and limited, the terms "setting", "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection. Or integrally connected; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood on a case-by-case basis.

Common structures of aerodynamic accessories include spoilers, vortex generators, and sawtooth trailing edges. Among them, spoilers are usually used to improve the gas flow separation phenomenon at the root of the blade, delay stall, and improve wind energy utilization. Vortex generators usually inject energy into the boundary layer through the generated vortex system, delay flow separation, delay the occurrence of stall, increase the lift coefficient of rough blades, make up for the loss of power generation, effectively delay or delay the flow and facilitate layer separation on the blade surface, and improve the blade. The ability to capture wind energy. Noise-reducing gear edges are usually used to reduce blade noise.

Because different wind fields have different wind resources, the airflow on the blade surface is also different. In order to achieve the best power generation efficiency and improve the aerodynamic performance of the wind turbine, it is usually necessary to design aerodynamic accessories of different specifications and shapes, and the aerodynamic During the installation process of accessories, it is usually necessary to modify the pneumatic accessories according to the specific installation position to adapt to the specific shape of the blade. Pneumatic accessories are usually made of plastic products or epoxy fiberglass materials through injection molding or vacuum infusion. Injection molding requires the creation of corresponding molds, and once formed, it cannot be changed, while infusion molding can only form simple shapes and requires multiple passes. A combination of processes is required to form a pneumatic attachment of a specific shape, and the process is complex. It can be seen from this that the production process of pneumatic accessories in related technologies is relatively complex, and once formed, it cannot be changed, or the modification cost is high.

In view of this, embodiments of the present application provide a pneumatic accessory, a blade using the pneumatic accessory, a wind turbine using the blade, and a manufacturing method of the pneumatic accessory to improve the convenience of modifying the pneumatic accessory.

In the first aspect, as shown in Figures 1, 3 and 4, the pneumatic accessory 11 provided according to an embodiment of the present application includes a thermoplastic part 111 and a conductive part 112. The thermoplastic part 111 is configured to produce plasticity when heated. deformation. The conductive part 112 is connected to the thermoplastic part 111, and the conductive part 112 is configured to generate heat when energized.

The thermoplastic part 111 can be softened by heating and hardened by cooling, and no chemical reaction occurs during the heating process. After the thermoplastic part 111 is repeatedly heated and cooled several times, the thermoplastic part 111 can maintain its properties. Properties of softening by heating and hardening by cooling. Alternatively, the thermoplastic part 111 may be formed by injection molding or injection molding.

The conductive member 112 may include metal materials such as copper. The conductive member 112 may be in contact with the thermoplastic member 111 . The conductive member 112 may be connected to the surface of the thermoplastic member 111 , or the conductive member 112 may be disposed inside the thermoplastic member 111 . For example, during the injection molding process of the thermoplastic part 111, the conductive part 112 is placed inside the thermoplastic part 111. After the thermoplastic part 111 is cured and formed, the conductive part 112 is located inside the thermoplastic part 111. It can be understood that a portion of the conductive member 112 may be exposed outside the thermoplastic member 111 to facilitate connection between the conductive member 112 and an external circuit.

The conductive member 112 can generate heat when energized. The conductive member 112 can be connected to an external circuit so that the conductive member 112 generates heat. The heat generated by the conductive member 112 is conducted to the thermoplastic part 111. When the thermoplastic part 111 After the heat accumulates to a certain extent, the thermoplastic part 111 is heated and melted, and can produce plastic deformation. At this time, a die 20 of a specific shape can be used to press the thermoplastic part 111 to form a pneumatic accessory 11 of a corresponding shape.

Therefore, the specific shape of the thermoplastic part 111 can be set as needed, and the installation position and number of the conductive parts 112 on the thermoplastic part 111 can be set as needed. For example, they can be set at different positions of one thermoplastic part 111. A plurality of conductive parts 112 are used to modify different positions of the thermoplastic part 111 when the conductive parts 112 are energized.

The conductive member 112 may be in the shape of a filament, a strip, a mesh, a sheet, etc., or the long conductive member 112 may be coiled in a disc shape to increase the contact area between the conductive member 112 and the thermoplastic member 111 .

In addition, when the pneumatic accessory 11 is installed on the blade body 12 of the blade 10, the conductive part 112 can be energized. The heat generated by the conductive part 112 is conducted to the thermoplastic part 111, and the thermoplastic part 111 is heated and melted, providing the pneumatic accessory with electricity. 11 applies pressure, the pneumatic attachment 11 can be welded to the surface of the blade body 12. In this way, there is no need to use bolts and other structures, and there is no need to destroy the structure of the blade body 12, and a relatively firm connection between the pneumatic accessory 11 and the blade body 12 can be achieved. , which is conducive to simplifying the installation process and connection structure of the blade body 12 and the pneumatic accessories 11, and is conducive to improving the installation reliability of the blade body 12 and the pneumatic accessories 11.

The pneumatic accessory 11 provided by the embodiment of the present application is configured to include a thermoplastic part 111 and a conductive part 112, so that when the conductive part 112 is energized, the thermoplastic part 111 is heated by the heat generated by the conductive part 112. Reshaping the shape of the pneumatic accessory 11 in the molten state of the thermoplastic part 111 is conducive to improving the convenience of modification of the pneumatic accessory 11, and is convenient for the installation of the pneumatic accessory 11 and the blade body 12, which is conducive to simplifying the connection between the pneumatic accessory 11 and the blade body 12. The installation process and connection structure of the blade body 12 are also conducive to improving the connection reliability between the pneumatic accessories 11 and the blade body 12 .

As shown in FIG. 2 , in some embodiments, the thermoplastic part 111 has a receiving cavity 111 a, and at least part of the conductive member 112 is filled in the receiving cavity 111 a.

The accommodating cavity 111a may be a cavity, or the conductive member 112 and the raw materials of the thermoplastic part 111 may be laid out together, and the conductive part 112 may be formed inside the thermoplastic part 111 by plasticizing the thermoplastic part 111, so that , the space inside the thermoplastic part 111 occupied by the conductive part 112 may be the accommodation cavity 111a. Therefore, in this embodiment, the receiving cavity 111a of the thermoplastic part 111 can be in any shape, and the conductive member 112 is filled inside the thermoplastic part 111.

The accommodation cavity 111a may be provided on the surface of the thermoplastic part 111, or the accommodation cavity 111a may be formed inside the thermoplastic part 111. At least part of the conductive member 112 is filled in the accommodation cavity 111a. This is beneficial to increasing the contact area between the conductive member 112 and the thermoplastic member 111, so that when the conductive member 112 is energized, the heat generated by the conductive member 112 can be transmitted to The speed of the thermoplastic part 111 is conducive to increasing the melting rate of the thermoplastic part 111, further improving the efficiency of re-modification of the thermoplastic part 111, or improving the connection efficiency between the pneumatic accessory 11 and the blade body 12.

In some embodiments, the pneumatic accessory 11 includes a plurality of thermoplastic parts 111 , and the plurality of thermoplastic parts 111 are welded and connected.

Specifically, the number of thermoplastic parts 111 included in the pneumatic accessory 11 and the connection relationship between the thermoplastic parts 111 can be set as needed. If the plurality of thermoplastic parts 111 are welded and connected, the conductive part 112 can be energized to cause at least part of the plurality of thermoplastic parts 111 to be melted and connected to each other.

Optionally, as needed, each thermoplastic part 111 can be configured to be in contact with the conductive part 112 , or only a part of the multiple thermoplastic parts 111 can be set in contact with the conductive part 112 , so that the conductive part 112 is energized. Under this condition, only part of the thermoplastic parts 111 can be melted, that is, part of the plurality of thermoplastic parts 111 can be reshaped, while the shape of another part always remains unchanged.

Therefore, the pneumatic accessory 11 includes a plurality of thermoplastic parts 111 , and the plurality of thermoplastic parts 111 are fused and connected, so that the pneumatic accessory 11 can be provided with more shapes as needed, so as to prepare a more complex shape of the pneumatic accessory 11 .

In some embodiments, each thermoplastic member 111 is in contact with at least one conductive member 112 .

In the case where the pneumatic accessory 11 includes multiple thermoplastic parts 111, each thermoplastic part 111 is in contact with at least one conductive part 112, then the number of the conductive part 112 may be one, and one conductive part 112 is connected to multiple thermoplastic parts at the same time. The parts 111 are in contact connection, or the number of the conductive parts 112 can be multiple, and each conductive part 112 is in contact connection with at least one thermoplastic part 111. In this way, when all the conductive parts 112 are energized, each thermoplastic part 112 Each of the parts 111 can receive heat from the conductive part 112 and generate melt, that is, each thermoplastic part 111 can be modified.

In the case where the pneumatic accessory 11 includes multiple conductive components 112, the multiple conductive components 112 can be connected in parallel with each other. After the conductive components 112 are energized, the multiple conductive components 112 can all generate heat. Alternatively, a plurality of conductive members 112 may be provided independently of each other, and at least one of the plurality of conductive members 112 may be selectively energized to achieve heating of a specific thermoplastic part 111, thereby achieving heating of the specific thermoplastic part 111. modification.

Therefore, arranging each thermoplastic part 111 to be in contact with at least one conductive part 112 is conducive to modifying the specific one or more thermoplastic parts 111 as needed, and is conducive to improving the flexibility of the shape reshaping of the pneumatic attachment 11 .

In some embodiments, the material of the thermoplastic part 111 includes polymethyl methacrylate, polybutylene terephthalate, polyethylene, polyvinyl chloride, polystyrene, polyamide, polyoxymethylene, polycarbonate, At least one of polyphenylene ether, polysulfone and rubber.

Materials such as polymethyl methacrylate, polybutylene terephthalate, polyethylene, polyvinyl chloride, polystyrene, polyamide, polyformaldehyde, polycarbonate, polyphenylene ether, polysulfone and rubber all have relatively high Good thermoplasticity means good properties of softening by heating and hardening by cooling, no chemical reaction occurs during heating, easy processing and molding, high mechanical properties, low density, high strength, fast processing and recyclable It is a high-performance, low-cost, green and environmentally friendly material.

Secondly, as shown in FIG. 4 , the blade 10 provided according to the embodiment of the present application includes at least one aerodynamic accessory 11 as provided in any of the above embodiments and a blade body 12 . The aerodynamic accessory 11 is connected to the surface of the blade body 12 .

When the aerodynamic attachment 11 is used in the blade 10 , the aerodynamic attachment 11 may serve as a spoiler for the blade 10 , or as a vortex generator for the blade 10 , or as a noise-reducing sawtooth for the blade 10 . Of course, some of the aerodynamic accessories 11 can be provided as spoilers of the blades 10 , some of the aerodynamic accessories 11 can be used as vortex generators of the blades 10 , and some can be used as noise-reducing saw teeth of the blades 10 .

Depending on the role of the pneumatic accessories 11 in the blade 10, different pneumatic accessories 11 can be provided with different structures and arrangements, and installed at different positions on the blade body 12.

For example, the aerodynamic attachment 11 can be installed on the leading edge 12c, the trailing edge 12d, or the windward surface 12a of the blade body 12.

The pneumatic accessories 11 are connected to the surface of the blade body 12. Alternatively, the pneumatic accessories 11 can be bonded to the surface of the blade body 12, or threadedly connected to the surface of the blade body 12. Of course, the pneumatic accessories 11 can also be made of thermoplastic parts. 111 is connected to the surface of the blade body 12 .

Since the blade 10 provided by the embodiment of the present application adopts the aerodynamic attachment 11 provided by the embodiment of the present application, in the process of modifying the aerodynamic attachment 11 of the blade 10, the conductive member 112 can be energized, and the conductive member 112 can be used to generate electricity. The heat of the thermoplastic part 111 is heated, so that the thermoplastic part 111 is in a molten state, and then the shape of the thermoplastic part 111 is reshaped. In this way, it is convenient to modify the pneumatic attachment 11 and is conducive to improving the aerodynamic performance of the blade 10 .

In some embodiments, the aerodynamic attachment 11 is welded to the surface of the blade body 12 .

Specifically, during the process of installing the pneumatic accessories 11 on the blade body 12, the corresponding conductive parts 112 can be energized to heat the thermoplastic parts 111 corresponding to the surfaces of the pneumatic accessories 11 and the blade body 12. The heat After the plastic part 111 is melted, a certain shape of the die 20 is used to exert a certain pressure on the pneumatic attachment 11. The thermoplastic part 111 is melted and connected to the surface of the blade body 12, and after the thermoplastic part 111 is cooled, it is solidified and formed.

Providing the pneumatic accessory 11 to be welded to the surface of the blade body 12 is conducive to simplifying the connection structure and connection process between the pneumatic accessory 11 and the blade body 12 .

Please continue to refer to Figure 4. In some embodiments, the blade body 12 includes opposite windward surfaces 12a and leeward surfaces 12b, and opposite leading edges 12c and trailing edges 12d along the chord direction of the blade 10. At least one aerodynamic attachment 11 is connected to the windward surface. Side 12a.

Optionally, the aerodynamic attachment 11 may include a spoiler and be connected to the side of the windward surface 12a of the blade 10 close to the trailing edge 12d to improve the gas flow separation phenomenon at the root of the blade 10 and delay stalling.

The aerodynamic attachment 11 may also include a vortex generator. Multiple vortex generators are arranged on the windward surface 12a according to certain rules and arranged in a specific shape to enhance the ability of the blade 10 to capture wind energy.

Of course, the aerodynamic attachment 11 can also be provided with both a spoiler and a vortex generator, and the spoiler and the vortex generator are respectively arranged at different positions on the windward surface 12a of the blade body 12.

Therefore, the windward surface 12a is the windward surface of the blade 10. Providing at least one aerodynamic attachment 11 connected to the windward surface 12a is conducive to giving full play to the role of the aerodynamic attachment 11 and improving the dynamic performance of the blade 10.

In some embodiments, at least one pneumatic attachment 11 is attached to the trailing edge 12d. At this time, the pneumatic attachment 11 can be a noise-reducing sawtooth to reduce the noise during the operation of the blade 10 .

In the third aspect, as shown in FIG. 5 , an embodiment of the present application provides a wind turbine 100 including the blade 10 provided in any of the above embodiments.

The wind turbine generator set 100 provided in the embodiment of the present application includes the blade 10 provided in any of the above embodiments, and therefore has the same technical effect, which will not be described again here.

In the fourth aspect, as shown in Figure 6, an embodiment of the present application provides a method for manufacturing a pneumatic accessory, including:

S10. Obtain the thermoplastic part and the conductive part. The conductive part is in contact with the thermoplastic part. The conductive part is configured to generate heat when energized, and the thermoplastic part is configured to produce plastic deformation when heated;

S20, energize the conductive part, and use a preset stamping die to pressurize the thermoplastic part to obtain a pneumatic accessory with a preset shape.

In step S10, the thermoplastic part 111 and the conductive part 112 are obtained, which may be the raw materials of the pneumatic attachment 11. That is, after the preparation of the thermoplastic part 111 and the conductive part 112 is completed, they have not yet formed a specific shape. At this time, after going through the steps After S20, the new pneumatic attachment 11 is formed. Of course, the obtained thermoplastic part 111 and conductive part 112 can also be the finished product of the pneumatic accessory 11, that is, the thermoplastic part 111 has been melted and formed into a specific shape of the pneumatic accessory 11. At this time, during step S20, the pneumatic accessory 11 is processed. The shape of the attachment 11 is reshaped, resulting in a modified pneumatic attachment 11. In other words, the manufacturing method of the pneumatic accessory 11 provided by the embodiment of the present application can be used to prepare a new pneumatic accessory 11 or to reshape the already formed pneumatic accessory 11 .

In S10, the number of thermoplastic parts 111 and conductive parts 112 obtained may be one or more. Correspondingly, in step S20, the conductive parts 112 are energized, and one of the plurality of conductive parts 112 may be energized. A plurality of them are energized at the same time, or at least some of the plurality of conductive members 112 are energized sequentially to achieve shape reshaping of the thermoplastic part 111 that is in contact with the corresponding conductive member 112 .

When the thermoplastic part 111 is in a molten state, the preset stamping die 20 that matches the shape of the pneumatic accessory 11 is used to pressurize the thermoplastic part 111 to form the thermoplastic part 111 of a preset shape. A pneumatic attachment 11 of a preset shape is formed.

The manufacturing method of pneumatic accessories provided by the embodiment of the present application energizes the obtained thermoplastic part 111 and the conductive part 112 of the conductive part 112. The heat generated by the conductive part 112 causes the thermoplastic part 111 that is in contact and connected with it to melt. It is assumed that the pressing mold 20 pressurizes the molten thermoplastic part 111 to form the pneumatic accessory 11 of a specific shape. Therefore, the manufacturing method of the pneumatic accessory 11 provided by the embodiment of the present application can conveniently and quickly produce the pneumatic accessory 11 of a specific shape, and can conveniently and quickly modify the pneumatic accessory 11 .

As shown in Figures 6 and 7, in some embodiments, S10. Obtaining thermoplastic parts and conductive parts includes:

S21. Lay out the fibers and conductive parts in the mold, and introduce the liquid thermoplastic material into the mold;

S22. The mold is heated, the fiber and the liquid thermoplastic material react chemically to form a solid thermoplastic part, and the conductive part is connected to the thermoplastic part.

In step S21, the fibers and conductive parts 112 can be laid out in the mold first, and then the liquid thermoplastic material is vacuum poured into the mold. Of course, the thermoplastic material can also be soaked in the fiber, and then the fiber and the conductive member 112 can be laid out in the mold, and can be arranged as needed.

It is understandable that before proceeding with S21, the mold can be cleaned first to remove dust, residue and other foreign matter on the surface, and the release agent can be fully applied to the surface of the mold three times. It can be applied in a spiral manner. After each application, leave it at room temperature. Let it sit naturally for 15 to 20 minutes. Then apply a layer of gel coat on the surface of the mold, and the color of the gel coat is determined according to the design. After waiting for a certain period of time, after the gel coat in the mold reaches a specified touch-dry state, corresponding fibers and conductive parts 112 are laid out on the mold in sequence.

The fiber can be glass fiber, carbon fiber, or other fibers or mixed fibers. The conductive member 112 can be a metal strip, a metal mesh, a metal sheet, etc., and of course it can also be other conductive materials that are compatible with resin.

It can be understood that other operations can also be performed after step S21 and before step S22. For example, you can remove the excess burrs of the fiber, and lay out auxiliary materials such as a flow guide net, a glue injection pipe, and a glue injection port. A layer of breathing cotton can be laid around 5 to 10cm along the contour of the fiber, and a piece of breathing cotton should be placed every 100mm. Cotton is used for overlapping and air extraction. Use a vacuum film and vacuum tape to seal the two layers of vacuum, start the vacuum pump, and after pumping to a specified vacuum value, test the vacuum drop value within a certain period of time. After the vacuum reaches certain requirements, proceed to step S22.

In step S22, the liquid thermoplastic material is a small molecule material. The mold is heated, and the fibers and the thermoplastic material react chemically to generate a solid polymer thermoplastic part 111. The conductive part 112 is solidified to form the thermoplastic part. 111.

It can be understood that the auxiliary materials laid before step S22 can be torn off after step S22 is completed, and then the formed thermoplastic part 111 and conductive part 112 are stored on a bracket of a specific shape.

Therefore, by laying out the fibers and the conductive part 112 and introducing the liquid thermoplastic material, the thermoplastic part 111 and the conductive part 112 are formed after heating, which simplifies the preparation process of the thermoplastic part 111 and the conductive part 112.

As shown in Figures 7 and 8, in some embodiments, S11, the step of laying out fibers and conductive parts in the mold, and introducing liquid thermoplastic material into the mold, includes:

S111. Lay out fibers and conductive parts in the mold;

S112. Introduce the liquid thermoplastic material into the mold.

In this way, the corresponding molding process of the thermoplastic part 111 and the conductive part 112 can be vacuum infusion molding, which facilitates the formation of a dense and structurally stable thermoplastic part 111, so that the thermoplastic part 111 has good thermoplasticity.

As shown in Figures 7 and 9, in some embodiments, S11, the step of laying out fibers and conductive parts in a preset mold, and introducing liquid thermoplastic material into the mold, includes:

S113. Pre-impregnate the liquid thermoplastic material into the fiber.

S114. Lay out the conductive parts and the fibers pre-impregnated with the thermoplastic material into the mold.

In this way, the corresponding molding process of the thermoplastic part 111 and the conductive part 112 can be prepreg molding or fiber rubber molding, which is beneficial to improving the density and performance stability of the formed thermoplastic part 111, so that the thermoplastic part 111 Has good thermoplasticity.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present application, but not to limit it; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: The technical solutions described in the foregoing embodiments can still be modified, or some or all of the technical features can be equivalently replaced; and these modifications or substitutions do not deviate from the essence of the corresponding technical solutions from the technical solutions of the embodiments of the present application. The scope shall be covered by the claims and description of this application. In particular, as long as there is no structural conflict, the technical features mentioned in the various embodiments can be combined in any way. The application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims (12)

1. A pneumatic accessory, characterized in that the pneumatic accessory includes: Thermoplastic parts configured to produce plastic deformation when heated; The conductive part is in contact with the thermoplastic part, and the conductive part is configured to generate heat when energized. 2. The pneumatic accessory according to claim 1, wherein the thermoplastic part has a receiving cavity, and at least part of the conductive part is filled in the receiving cavity. 3. The pneumatic accessory according to claim 1, wherein the pneumatic accessory includes a plurality of thermoplastic parts, and the plurality of thermoplastic parts are welded and connected. 4. The pneumatic accessory according to any one of claims 1 to 3, wherein each of the thermoplastic parts is in contact with at least one of the conductive parts. 5. The pneumatic accessory according to any one of claims 1 to 4, characterized in that the material of the thermoplastic part includes polymethyl methacrylate, polybutylene terephthalate, polyethylene, polychloride At least one of ethylene, polystyrene, polyamide, polyoxymethylene, polycarbonate, polyphenylene ether, polysulfone and rubber. 6. A blade, characterized in that it includes: At least one pneumatic attachment according to any one of claims 1 to 5; The blade body, the pneumatic attachment is connected to the surface of the blade body. 7. The blade according to claim 6, wherein the pneumatic attachment is welded to the surface of the blade body. 8. The blade assembly according to claim 6 or 7, wherein the blade body includes opposite windward and leeward surfaces, and opposite leading edges and trailing edges along the chord direction of the blade; At least one of the pneumatic accessories is connected to the windward surface; and/or, At least one of said pneumatic accessories is connected to said trailing edge. 9. A wind turbine generator set, characterized by comprising the blade according to any one of claims 6 to 8. 10. A method of manufacturing pneumatic accessories, characterized by: including: Obtain a thermoplastic part and a conductive part, the conductive part is contact-connected to the thermoplastic part, the conductive part is configured to generate heat when energized, and the thermoplastic part is configured to generate heat when heated. plastic deformation; The conductive part is energized, and a preset stamping die is used to pressurize the thermoplastic part to obtain a pneumatic accessory of a preset shape. 11. The manufacturing method of pneumatic accessories according to claim 10, characterized in that said obtaining thermoplastic parts and conductive parts includes: Laying out fibers and conductive parts in the mold, and introducing liquid thermoplastic material into the mold; The mold is heated, and a chemical reaction occurs between the fiber and the liquid thermoplastic material to form a solid thermoplastic part, and the conductive part is contact-connected to the thermoplastic part. 12. The manufacturing method of pneumatic accessories according to claim 11, characterized in that, laying out fibers and conductive parts in the mold, and introducing liquid thermoplastic material into the mold includes: Laying out fibers and conductive parts in the mold; Introducing liquid thermoplastic material into the mold; or, Pre-impregnating the fibers with liquid thermoplastic material; Conductive elements and the fibers pre-impregnated with the thermoplastic material are laid into the mold.