Heating device and heating apparatus

Abstract

The application discloses a heating device and a heating equipment. The heating device is used for heating a structure to be heated on a blade surface, and comprises a flexible piece, a heating piece and a support piece. The flexible piece is formed with a first through hole in a thickness direction of the flexible piece. The heating piece is located in the flexible piece and is arranged to avoid the first through hole. The support piece is arranged on one side of the flexible piece in the thickness direction, a projection of the support piece in the thickness direction is in a ring structure, and the support piece and the flexible piece jointly form an accommodation space. The gas in the accommodation space can leave the accommodation space through the first through hole, so that the flexible piece is attached to the structure to be heated. The embodiment of the application can solve the problem of poor structure at the mold joint area.

Description

Technical Field

[0001] This application belongs to the field of blade processing technology, and in particular relates to a heating device and heating equipment. Background Technology

[0002] During the manufacturing process of blades, there are often areas that require reinforcement. In the reinforcement process, reinforcement material is usually placed on the area of ​​the blade that needs to be reinforced. Then, the reinforcement material and the area of ​​the blade that needs to be reinforced are heated and cured together to make the reinforcement material firmly connected to the area of ​​the blade that needs to be reinforced.

[0003] However, in actual operation, the heating effect on the reinforcing material and the areas on the blade that need to be reinforced directly affects the reinforcement effect on the blade. Therefore, it is necessary to ensure the heating effect on the reinforcing material and the areas on the blade that need to be reinforced. Utility Model Content

[0004] This application provides a heating device and heating equipment that can effectively heat the structure to be heated.

[0005] On one hand, embodiments of this application provide a heating device. The heating device is used to heat a structure to be heated on the surface of a blade. The heating device includes a flexible member, a heating member, and a support member. The flexible member has a first through-hole formed through its thickness direction. The heating member is located within the flexible member and is disposed away from the first through-hole. The support member is disposed on one side of the flexible member in the thickness direction, and the projection of the support member in the thickness direction is annular. The support member and the flexible member together enclose a receiving space. The heating device is configured such that gas within the receiving space can exit the receiving space through the first through-hole, thereby allowing the flexible member to adhere to the structure to be heated.

[0006] In some embodiments, the heating device further includes an adapter that protrudes from the surface of the flexible member opposite to the receiving space and is inserted into the first through hole. The adapter has an air inlet channel that is connected in communication with the receiving space.

[0007] In some embodiments, the heating device further includes at least two adsorption members, which are disposed on both sides of the flexible member along a first direction intersecting the thickness direction. Each adsorption member includes an adsorption element and a connecting element. The adsorption element is connected to at least one of the support member and the flexible member via the connecting element. The adsorption element and the flexible member are spaced apart in the first direction, and the adsorption element is used to fit against the blade.

[0008] In some embodiments, there are multiple first through holes, which are arranged in a second direction, with the first direction, the second direction, and the thickness direction intersecting in pairs. At least some of the adsorption components are spaced apart in the second direction.

[0009] In some embodiments, a plurality of adsorption members located on one side of the flexible member along the first direction are correspondingly arranged with a plurality of adsorption members located on the other side of the flexible member along the first direction. Some adsorption members are correspondingly arranged with some first through holes in the first direction.

[0010] In some embodiments, the adsorption element includes a suction cup, which includes an adsorption surface and an exhaust port disposed on the adsorption surface. The suction cup has an exhaust channel communicating with the exhaust port, and a one-way valve disposed on the exhaust channel. The adsorption surface is used to contact the blade and form an adsorption space, and the one-way valve is used to discharge the gas in the adsorption space through the exhaust port and the exhaust channel.

[0011] In some embodiments, the suction member further includes a housing connected to a suction cup, the housing having an opening in the thickness direction and a first wall opposite the opening, the suction cup covering the opening and spaced apart from the first wall to form a receiving cavity. A connector is movably connected to the housing and is at least partially located within the receiving cavity.

[0012] In some embodiments, the adsorption member further includes a fixing member and a locking member. The fixing member is fixedly connected to the housing and has a first wire passage communicating with the receiving cavity. The fixing member includes an elastic material. The locking member is sleeved on the outer periphery of the fixing member and is movably disposed relative to the fixing member in a first direction. The inner diameter of the locking member gradually decreases in the direction gradually approaching the flexible member.

[0013] In some embodiments, the heating device further includes a detection component connected to the flexible member and located within the receiving space. The heating device also includes a control component disposed within the flexible member and electrically connected to the heating member.

[0014] On the other hand, embodiments of this application provide a heating device. The heating device includes a heating element, which is the heating element described above. An air extraction device is also included, connected to the receiving space through a first through-hole.

[0015] The heating device and heating equipment of this application embodiment can provide a first through hole on the flexible member, so that when the structure to be heated needs to be heated, the air in the accommodating space can leave the accommodating space through the first through hole. In this process, at least a part of the structure in the flexible member will deform and move in the direction closer to the structure to be heated, so that the flexible member and the structure to be heated are tightly attached, thereby improving the reliability of the connection between the heating device and the structure to be heated. In this way, the probability of the flexible member and the structure to be heated detaching can be reduced, thereby improving the problem of poor heating effect of the structure to be heated. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments of this application will be briefly introduced below. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of the flexible component and support component of a heating device provided in an embodiment of this application; Figure 2 This is a structural schematic diagram of the flexible component and support component of a heating device provided in an embodiment of this application (wherein, the adapter component is shown). Figure 3 This is a schematic diagram of the structure of a heating device provided in an embodiment of this application; Figure 4 This is a schematic diagram of the structure of a heating device provided in an embodiment of this application (wherein, the first blade structure and the second blade structure are shown). Figure 5 This is a schematic diagram of the structure of the adsorption component of a heating device provided in an embodiment of this application; Figure 6 This is a structural schematic diagram of the fixing and locking components of a heating device provided in an embodiment of this application; Figure 7 This is a cross-sectional structural diagram of the fixing and locking components of a heating device provided in an embodiment of this application; Figure 8 This is a schematic diagram of the preparation process of a blade reinforcement method provided in this application embodiment.

[0018] Marker explanation: 11. Flexible component; 12. Support component; 13. First through hole; 14. Accommodation space; 20. Adsorption component; 21. Shell; 211. Second wall; 212. First wall; 22. Connector; 231. Fixing component; 232. Locking component; 2311. Third threaded section; 2312. Fourth threaded section; 24. Suction cup; 25. Handle; 26. Adsorption component; 31. Adapter parts; 40. Blade; 41. First blade structure; 42. Second blade structure; X, thickness direction; Y, first direction; Z, second direction. Detailed Implementation

[0019] The features and exemplary embodiments of various aspects of this application will be described in detail below. To make the objectives, technical solutions, and advantages of this application clearer, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only intended to explain this application and not to limit it. For those skilled in the art, this application can be implemented without some of these specific details. The following description of the embodiments is merely to provide a better understanding of this application by illustrating examples.

[0020] It should be noted that, in this document, relational terms such as "first" and "second" are used merely 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..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes said element.

[0021] During the blade manufacturing process, the heating effect on the reinforcing material and the areas on the blade that need to be reinforced directly affects the reinforcement effect of the blade. Therefore, it is necessary to ensure the heating effect on the reinforcing material and the areas on the blade that need to be reinforced.

[0022] For example, the area on the blade that needs reinforcement can be the mold seam formed at the junction of two half molds. Since there may be some structural defects in the mold seam area, such as fiber delamination and resin accumulation, it is necessary to remove the excess material in the mold seam area. After removing the excess material, the structural strength of the mold seam area may be affected. Therefore, it is necessary to reinforce the area of ​​the mold seam that has been removed.

[0023] The reinforcing material can be fiberglass fabric. During the reinforcement process, the fiberglass fabric is first spread out on a workbench and resin is poured into it to impregnate the fabric. Then, the fiberglass fabric is manually laid on the outer surface of the blade at the mold joint. Alternatively, the reinforcing material can also be prepreg fabric, which is laid manually or with the help of automated equipment in the reinforcement area.

[0024] After the reinforcing material is applied to the area on the blade requiring reinforcement, it is typically encapsulated with a vacuum membrane. A heating device is then placed outside the vacuum membrane to heat and cure the reinforcing material at the intended reinforcement location. However, the relative position between the heating device and the vacuum membrane is difficult to guarantee, affecting the heating effect on both the reinforcing material and the area on the blade requiring reinforcement, thus impacting the overall reinforcement effect.

[0025] Regarding the above issues, firstly, please refer to [link / reference needed]. Figures 1 to 4 This application provides a heating device for heating a structure to be heated on the surface of a blade 40. The heating device includes a flexible member 11, a heating member (not shown in the figure), and a support member 12. The flexible member 11 has a first through hole 13 formed through it in its thickness direction X. The heating member is located inside the flexible member 11 and is disposed away from the first through hole 13. The support member 12 is disposed on one side of the flexible member 11 in the thickness direction X. The projection of the support member 12 in the thickness direction X is an annular structure, and the support member 12 and the flexible member 11 together form a receiving space 14. The heating device is configured such that gas in the receiving space 14 can leave the receiving space 14 through the first through hole 13, so that the flexible member 11 fits against the structure to be heated.

[0026] It should be noted that the structure to be heated in the embodiments of this application can be disposed in the mold seam area of ​​the blade 40 to improve the mechanical properties of the blade 40. Further optionally, the structure to be heated includes a prepreg and a vacuum film covering the prepreg. The structure to be heated in the embodiments of this application can also be disposed in the reinforcement area of ​​the blade 40, such as the repair area, to improve the mechanical properties of the blade 40.

[0027] The heating device is used to heat the structure to be heated. The heating device includes a flexible component 11, which is made of a flexible material. The flexible material allows the flexible component 11 to deform under external forces. The heating element is the core component that performs the heating function and is located within the flexible component 11. Optionally, the flexible component 11 may include a flexible fabric, and the heating element includes a heating wire integrated within the flexible fabric. This allows for installation between the flexible component 11 and the heating element while also meeting the deformation requirements of the flexible component 11. The heating wire may be made of a metal material with high resistivity, such as a nickel-chromium alloy wire or an iron-chromium-aluminum alloy wire. When current passes through the heating wire, due to the resistance, electrical energy is converted into heat energy, thereby raising the surface temperature of the flexible component 11.

[0028] The support member 12 is a component in the heating device that supports the flexible member 11. The support member 12 separates the flexible member 11 from the blade 40. Specifically, the support member 12 is disposed circumferentially on the flexible member 11 and located on the side of the flexible member 11 facing the blade 40. The support member 12 and the flexible member 11 together enclose an open receiving space 14. When the heating device is installed on the blade 40, the support member 12 abuts against the blade 40, and the blade 40 covers the opening of the receiving space 14. At this time, the flexible member 11 and the blade 40 are spaced apart in the thickness direction X, and the flexible member 11 is located on the side of the structure to be heated away from the blade 40.

[0029] The flexible member 11 is provided with a first through hole 13, which penetrates the flexible member 11 in the thickness direction X to connect the accommodating space 14 with the external environment. The number of first through holes 13 can be one or more, and this embodiment does not limit this. When there are multiple first through holes 13, the multiple first through holes 13 can be arranged in a single direction, or in multiple directions, or randomly arranged.

[0030] When the heating device is in operation, the accommodating space 14 can be evacuated through the first through hole 13 to change its volume, thereby altering the shape of the flexible component 11. This allows at least a portion of the flexible component 11 to fit tightly against the surface of the structure to be heated away from the blade 40, thus fixing the position of the flexible component 11 and the heating element relative to the structure to be heated. The heating device then heats the structure to be heated using the heating element to solidify it, thereby improving the mechanical properties of the blade 40 at the mold joint.

[0031] It should be noted that the support member 12 can be made of various materials. For example, the support member 12 can be made of a rigid material, so that the support member 12 can remain fixed during the evacuation process of the receiving space 14, thereby improving the contact strength between the support member 12 and the blade 40. Alternatively, the support member 12 can also be made of a flexible material, such as a sponge sealing strip or foamed rubber, so that the support member 12 can deform together with the flexible member 11 during the evacuation process of the receiving space 14. This application embodiment does not limit this.

[0032] It should be noted that in the embodiments of this application, one end of the support member 12 is connected to the flexible member 11, and the other end abuts against the side of the structure to be heated away from the blade 40. The direction from one end of the support member 12 to the other end is the thickness direction X.

[0033] In summary, in this embodiment of the application, by providing a first through hole 13 on the flexible member 11, when the structure to be heated needs to be heated, the air in the accommodating space 14 can leave the accommodating space 14 through the first through hole 13. During this process, at least a portion of the structure in the flexible member 11 will deform and move in a direction closer to the structure to be heated, so that the flexible member 11 and the structure to be heated are tightly fitted together, thereby improving the reliability of the connection between the heating device and the structure to be heated. In this way, the probability of the flexible member 11 and the structure to be heated detaching can be reduced, thereby improving the problem of poor heating effect of the structure to be heated.

[0034] In some embodiments, please refer to Figure 2 The heating device also includes an adapter 31, which protrudes from the surface of the flexible member 11 away from the receiving space 14 and is inserted into the first through hole 13; the adapter 31 has an air intake channel that is connected to the receiving space 14.

[0035] It should be noted that, in the embodiments of this application, the adapter 31 may include a vacuum connector, one end of which is connected to the first through hole 13, and the other end of which is connected to an external device. Optionally, the external device includes a vacuum pump, which can be connected to the accommodating space 14 through the adapter 31 and the first through hole 13 to extract space within the accommodating space 14, so that at least a portion of the flexible member 11 is tightly fitted with the structure to be heated. In summary, in the embodiments of this application, by providing the adapter 31, the air intake channel can be connected to the first through hole 13, thereby connecting the air intake channel and the accommodating space 14. Air within the accommodating space 14 can be discharged through the first through hole 13 and the air intake channel. At least a portion of the flexible member 11 will deform and move towards the structure to be heated, so that the flexible member 11 and the structure to be heated are tightly fitted, thereby reducing the probability of the flexible member 11 detaching from the structure to be heated, and improving the problem of poor heating effect of the structure to be heated.

[0036] The hand lay-up bag pressing process in related technologies involves laying a vacuum membrane on the surface of the prepreg and then evacuating the prepreg to remove air bubbles. This allows the air bubbles inside the prepreg to be gradually extracted. However, during the extraction process, the prepreg may move along with the air bubbles, resulting in uneven stress distribution in some areas of the prepreg.

[0037] Therefore, in some embodiments, please refer to Figures 1 to 4The flexible component 11 is provided with a plurality of first through holes 13 at intervals. In this way, under the action of the vacuum pump, the air in the accommodating space 14 can be discharged through the plurality of first through holes 13 and the plurality of vacuum connectors. The external atmospheric pressure will apply pressure to the flexible component 11, so that the flexible component 11 moves along its own thickness direction X toward the direction closer to the vacuum film. Furthermore, the arrangement of the plurality of first through holes 13 will make the flexible component 11 more uniformly stressed. In this way, the structure to be heated can be uniformly stressed during the curing process, which can reduce the risk of the prepreg moving with the air bubbles during the air bubble extraction process, thereby improving the problem of uneven local stress on the prepreg.

[0038] Further optionally, a plurality of first through holes 13 are equally spaced on the flexible member 11 along the second direction Z, with the distance between two adjacent first through holes 13 being 1m, i.e., a density of 1 hole / m along the second direction Z. Optionally, the number of first through holes 13 is 7. The arrangement of the plurality of first through holes 13 includes, but is not limited to, along the second direction Z. For example, the plurality of first through holes 13 can also be arranged in an array along the first direction Y and the second direction Z.

[0039] In some embodiments, please refer to Figures 3 to 5 The heating device further includes at least two adsorption components 20, which are disposed on both sides of the flexible member 11 along a first direction Y, which intersects with the thickness direction X. Each adsorption component 20 includes an adsorption element 26 and a connecting element 22. The adsorption element 26 is connected to at least one of the support member 12 and the flexible member 11 via the connecting element 22. The adsorption element 26 and the flexible member 11 are spaced apart along the first direction Y, and the adsorption element 26 is used to fit against the blade 40.

[0040] It should be noted that in the embodiments of this application, the first direction Y, the second direction Z and the thickness direction X intersect each other, and optionally, the first direction Y, the second direction Z and the thickness direction X are perpendicular to each other.

[0041] Specifically, in the embodiments of this application, one end of the connector 22 is connected to the support 12, and the other end of the connector 22 is connected to the adsorption member 26. The connector 22 can be a nylon rope. The blade 40 includes a first blade structure 41 and a second blade structure 42. One of the two adsorption members 26 is attached to the first blade structure 41, and the other adsorption member 26 is attached to the second blade structure 42. The first blade structure 41 forms the aforementioned leading edge, and the second blade structure 42 forms the aforementioned trailing edge.

[0042] In summary, in this embodiment, the two adsorption members 26 can make the adsorption member 20 and the blade 40 fit tightly together. The first through hole 13 and the accommodating space 14 can make the flexible member 11 fit tightly together with the structure to be heated. Thus, the combined action of the two adsorption members 26 and the flexible member 11 can increase the stability of the connection and reduce the probability of the heating device falling off.

[0043] In some embodiments, please refer to Figure 3 and Figure 4 The number of first through holes 13 is multiple, and the multiple first through holes 13 are arranged in the second direction Z. The first direction Y, the second direction Z and the thickness direction X intersect each other; wherein, at least some of the adsorption components 20 are spaced apart in the second direction Z.

[0044] Specifically, in the embodiments of this application, there are multiple adsorption components 20, and the multiple adsorption components 20 are arranged at intervals along the second direction Z. Further optionally, the distance between two adjacent adsorption components 20 along the second direction Z is 2m.

[0045] In summary, in this embodiment, multiple adsorption components 20 are spaced apart along the second direction Z, and multiple first through holes 13 are spaced apart along the second direction Z. Since the adsorption components 20 and the first through holes 13 are arranged in the same direction, the flexible member 11 can fit with the structure to be heated in the second direction Z, and the multiple adsorption components 20 can fit with the blade 40 in the second direction Z. Thus, under the combined action of the flexible member 11 and the multiple adsorption components 20, the stability of the connection of the heating device in the second direction Z can be further improved.

[0046] In some alternative embodiments, the flexible element 11 has a larger dimension in the second direction Z than its dimension in the first direction Y.

[0047] In some embodiments, please refer to Figure 3 and Figure 4 Multiple adsorption components 20 located on one side of the flexible member 11 along the first direction Y are correspondingly arranged with multiple adsorption components 20 located on the other side of the flexible member 11 along the first direction Y. Some adsorption components 20 are correspondingly arranged with some first through holes 13 in the first direction Y.

[0048] In this embodiment, the connection force between the flexible member 11 and the blade 40 includes the adsorption force generated at the first through hole 13 and the tensile force generated by the adsorption member 20 on the flexible member 11. The adsorption member 20 is connected to the blade 40 through the adsorption member 26 and exerts a force on the flexible member 11 through the connector 22 to improve the connection force between the flexible member 11 and the blade 40, thereby improving the positional stability of the flexible member 11 on the blade 40.

[0049] In this embodiment, in order to facilitate the connection and positioning of the adsorption member 26 to the flexible member 11 via the connector 22, the adsorption member 26 is located on one side of the flexible member 11 along the first direction Y, and the connector 22 extends in a direction parallel to the first direction Y, so that the force exerted by the connector 22 on the flexible member 11 is consistent with the relative position between the adsorption member 26 and the flexible member 11, thereby reducing the probability of the flexible member 11 being displaced on the blade 40.

[0050] Considering that some of the multiple adsorption components 20 are located on one side of the flexible member 11 along the first direction Y, and some are located on the other side of the flexible member 11, in order to reduce the degree of tensile deformation of the flexible member 11 by the adsorption components 20, the adsorption components 20 located on both sides of the flexible member 11 along the first direction Y are arranged one-to-one, so that the adsorption components 20 located on both sides of the flexible member 11 along the first direction Y can apply force to the flexible member 11 along the same straight line. While ensuring the connection stability between the flexible member 11 and the blade 40, it can also reduce the tensile deformation of the flexible member 11 by the adsorption components 20 and reduce the probability of displacement of the flexible member 11.

[0051] Furthermore, the flexible component 11 is mainly subjected to the adsorption force generated at the first through hole 13 and the tensile force generated by the adsorption component 20 on the flexible component 11. In order to reduce the mutual influence of the above two forces, some of the adsorption components 20 and some of the first through holes 13 are arranged correspondingly in the first direction Y, so that the above two forces apply force to the flexible component 11 along the same straight line in the first direction Y, so as to further ensure the positional stability of the flexible component 11 on the blade 40.

[0052] In some embodiments, please refer to Figure 5 The adsorption component 26 includes a suction cup 24, which includes an adsorption surface and an exhaust port disposed on the adsorption surface. The suction cup 24 has an exhaust channel communicating with the exhaust port and a one-way valve disposed on the exhaust channel. The adsorption surface is used to contact the blade 40 and form an adsorption space, and the one-way valve is used to discharge the gas in the adsorption space through the exhaust port and the exhaust passage.

[0053] Specifically, in the embodiments of this application, the suction cup 24 may optionally be a rubber suction cup, and the material of the rubber suction cup may include at least one of natural rubber, nitrile rubber, silicone rubber, fluororubber and EPDM rubber.

[0054] Specifically, the one-way valve only allows fluid (liquid or gas) to flow in one direction, while preventing fluid from flowing in the opposite direction. The specific structure of the one-way valve can be referred to in the prior art, and will not be repeated here. In the embodiments of this application, the flow path of the gas in the adsorption space is: adsorption space → exhaust port → exhaust channel → exhaust port.

[0055] In summary, in this embodiment of the application, by squeezing the suction cup 24, the gas in the adsorption space will be discharged through the exhaust port and exhaust channel, and under the action of the one-way valve. In this way, by discharging the air in the adsorption space, the pressure in the adsorption space can be reduced, and a pressure difference can be formed with the external atmospheric pressure, so that the adsorption space forms a vacuum environment, thereby generating an adsorption force, so that the suction cup 24 and the blade 40 are tightly attached, thereby realizing the connection between the suction cup 24 and the blade 40.

[0056] In some embodiments, please refer to Figure 5 The adsorption member 26 also includes a housing 21, which is connected to the suction cup 24. The housing 21 has an opening in the thickness direction X and a first wall 212 opposite to the opening. The suction cup 24 covers the opening and forms a receiving cavity with the first wall 212 at a distance. The connector 22 is movably connected to the housing 21 and is at least partially located within the receiving cavity.

[0057] Specifically, in the embodiments of this application, the housing 21 further has a second wall 211, which is connected to the first wall 212 and is set at an angle relative to the first wall 212. The first wall 212 and the second wall 211 enclose and form a receiving cavity.

[0058] It should be noted that in the embodiments of this application, one end of the connector 22 is connected to the first wall 212 of the housing 21, and the other end of the connector 22 is connected to the support member 12. The connector 22 is movably connected to the housing 21, which means that the length of the connector 22 can be adjusted, so that the operator can fix the suction cup 24 in a suitable position.

[0059] Specifically, in the embodiments of this application, optionally, the second wall 211 of the housing 21 is provided with a first threaded section (not shown in the figure), and the suction cup 24 is provided with a second threaded section (not shown in the figure). The first threaded section and the second threaded section are threadedly engaged. The connection method between the housing 21 and the suction cup 24 includes, but is not limited to, threaded connection. For example, the connection method between the housing 21 and the suction cup 24 may also include snap-fit ​​or plug-in fit.

[0060] Specifically, in the embodiments of this application, a plurality of limiting baffles are provided on the first wall 212, each limiting baffle extending along the thickness direction X, and the plurality of limiting baffles are arranged at radial intervals along the housing 21. The limiting baffles are used to limit the connection member 22. Optionally, the shape of the limiting baffles may include an arc shape.

[0061] Specifically, in the embodiments of this application, along the thickness direction X, the housing 21 is provided with at least one handle 25 on the side opposite to the suction cup 24. Optionally, there are two handles 25, and both handles 25 are rotatably arranged relative to the housing 21.

[0062] In summary, in this embodiment, when the position of the suction cup 24 needs to be adjusted, for example, when the heating device needs to be fixed on the blade 40, since the connector 22 is movably connected to the housing 21, by adjusting the connector 22, the adsorption surface of the suction cup 24 can be tightly fitted with the blade 40, thus achieving the connection between the heating device and the blade 40. When the position of the suction cup 24 needs to be adjusted again, for example, when the heating device needs to be removed from the blade 40, by readjusting the connector 22 so that the connector 22 is housed in the receiving cavity, the adsorption position of the suction cup 24 can be changed by adjusting the connector 22, so that the suction cup 24 can freely select the adsorption area, thereby achieving a better adsorption effect.

[0063] In some embodiments, please refer to Figure 6 and Figure 7 The adsorption component 20 further includes a fixing member 231 and a locking member 232. The fixing member 231 is fixedly connected to the housing 21 and has a first wire passage that communicates with the receiving cavity. The fixing member 231 is made of elastic material. The locking member 232 is sleeved on the outer periphery of the fixing member 231 and is movable relative to the fixing member 231 in a first direction Y. The inner diameter of the locking member 232 gradually decreases in the direction that gradually approaches the flexible member 11.

[0064] It should be noted that, in the embodiments of this application, elastic material refers to a material that can deform under external force and return to its original shape and size after the external force is removed. Elastic material may include at least one of natural rubber, silicone rubber, polyurethane, thermoplastic elastomer, and ethylene propylene rubber.

[0065] Optionally, both the fixing member 231 and the locking member 232 are cylindrical structures with openings at both ends. The locking member 232 is rotatably disposed relative to the fixing member 231. The outer periphery of the fixing member 231 is provided with a third threaded section 2311, and the inner wall surface of the locking member 232 is provided with a fourth threaded section 2312. The third threaded section 2311 and the fourth threaded section 2312 are threadedly engaged. In the direction that gradually approaches the flexible member 11, the size of the fourth threaded section 2312 in the diameter direction of the locking member 232 gradually increases.

[0066] In summary, in the embodiments of this application, during on-site operation, when the length of the connector 22 meets the positioning requirements of the adsorption member 20, the locking member 232 is moved so that it is fitted onto the outer periphery of the fixing member 231. Since the inner diameter of the locking member 232 gradually decreases, the size of the fixing member 231 in its diameter direction can be reduced, so that the fixing member 231 is tightly fitted to the outer periphery of the connector 22, thus achieving the purpose of fixing the connector 22. When it is necessary to adjust the length of the connector 22, the locking member 232 is moved again so that it is disengaged from the fixing member 231. Since the fixing member 231 includes an elastic material, the size of the fixing member 231 in its diameter direction will return to its original size, and the fixing member 231 will no longer be tightly fitted to the connector 22, thereby allowing the connector 22 to move relative to the flexible member 11.

[0067] In another embodiment, both the fixing member 231 and the locking member 232 are cylindrical structures with openings at both ends. The outer periphery of the fixing member 231 is provided with a third threaded section 2311, and the inner wall surface of the locking member 232 is provided with a fourth threaded section 2312. The fixing member 231 is also provided with at least one groove, which penetrates the fixing member 231 along the diameter direction and communicates with the first wire passage.

[0068] In some embodiments, the heating device further includes a detection component connected to the flexible member 11 and located within the receiving space 14; the heating device further includes a control component disposed within the flexible member 11 and electrically connected to the heating member.

[0069] Specifically, in the embodiments of this application, the detection component may include at least one of a temperature sensor and a temperature fuse, which is used to monitor the temperature of the heating device in real time; the control component may include a microcontroller.

[0070] Specifically, in the embodiments of this application, the heating device adopts a temperature control system with heating curve setting and temperature feedback functions. It can set heating curves for different regions and stop heating when the temperature exceeds the set temperature value, thereby ensuring a relatively constant temperature.

[0071] It should be noted that in the embodiments of this application, both the detection component and the control component are arranged to avoid the first through hole 13.

[0072] In summary, in this embodiment of the application, when the detection component detects that the temperature of the flexible component 11 is too high or too low, the detection component will send a signal to the control component. Since the control component is electrically connected to the heating component, the control component will control the heating component, thereby adjusting the temperature of the flexible component 11.

[0073] Secondly, please refer to Figures 1 to 7This application provides a heating device. The heating device includes a heating element and an air extraction device. The heating element is the heating element described above, and the air extraction device is connected to the receiving space 14 through a first through hole 13.

[0074] Optionally, the pumping device includes a vacuum pump, and the heating device includes an adapter 31, one end of which is connected to the first through hole 13, and the other end of which is connected to the vacuum pump.

[0075] It should be noted that the heating device provided in this application embodiment has the beneficial effects of the heating device in any of the foregoing embodiments. For details, please refer to the foregoing description of the beneficial effects of the heating device. This application embodiment will not repeat the description.

[0076] Thirdly, please refer to Figure 8 This application provides a blade reinforcement method, which includes step S10: laying an adhesive layer at the joint area of ​​adjacent blades.

[0077] In step S10, the adhesive layer refers to a semi-finished product, namely the prepreg, formed by impregnating fibers or fabrics with a resin matrix under strictly controlled conditions and then processing it through a certain process. After laying the adhesive layer, a vacuum film needs to be covered on the adhesive layer.

[0078] Step S11: The heating device is installed on the blade 40. The heating device is the heating device described above. The adhesive layer is located in the receiving space 14.

[0079] Specifically, in step S11, the heating device is placed on the vacuum membrane, and the suction cups 24 are adsorbed one by one onto the surface of the first blade structure 41, starting from the blade root side of the first blade structure 41. After all the suction cups 24 on one side of the flexible member 11 along the first direction Y are adsorbed, the suction cups 24 on the other side of the flexible member 11 along the first direction Y are adsorbed one by one onto the second blade structure 42. During the adsorption process, the suction cups 24 are kept in a taut state with the connecting member 22.

[0080] Step S13: Evacuate the heating device to make the flexible part 11 adhere to the adhesive layer.

[0081] In step S13, evacuating the heating device means turning on the vacuum pump of the evacuation device so that the air in the accommodating space 14 is discharged through the first through hole 13 and the air inlet channel. In this way, the flexible member 11 will move along the thickness direction X toward the adhesive layer so that the flexible member 11 is in contact with the adhesive layer. The vacuum degree is less than or equal to 25 mbar.

[0082] Step S14: Heat the adhesive layer using a heating element.

[0083] In step S14, the heating device also includes a wire. One end of the wire extends into the interior of the flexible member 11 and is connected to the heating member. The other end of the wire is used to connect to the power source. The heating device is turned on, and the temperature and heating time are set according to the material process characteristics. The flexible member 11 automatically performs heating to complete the reinforcement and curing of the blade 40, thereby changing the material properties of the blade 40 after it is formed.

[0084] In summary, in this embodiment, by evacuating the heating device, the air in the accommodating space 14 can be expelled. This causes at least a portion of the flexible member 11 to deform and move towards the structure to be heated, resulting in a tight fit between the flexible member 11 and the structure to be heated. This improves the stability of the connection between the flexible member 11 and the structure to be heated. Furthermore, heating the adhesive layer with the heating element enhances the heating effect of the adhesive layer. Although the embodiments disclosed in this application are as described above, the content is merely for the purpose of understanding this application and is not intended to limit the present invention. Any person skilled in the art to which this application pertains may make any modifications and changes in form and detail without departing from the spirit and scope disclosed in this application; however, the scope of protection of this application shall still be determined by the scope defined in the appended claims.

[0085] The above description is merely a specific implementation of this application. Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, modules, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here. It should be understood that the protection scope of this application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this application, and these modifications or substitutions should all be covered within the protection scope of this application.

Claims

1. A heating device, characterized in that, The heating device is used to heat the structure to be heated on the surface of the blade, and the heating device includes: A flexible component, wherein a first through hole is formed through the component in its thickness direction; The heating element is located inside the flexible element and is disposed to avoid the first through hole; A support member is disposed on one side of the flexible member in the thickness direction. The projection of the support member in the thickness direction is a ring structure, and the support member and the flexible member together enclose and form an accommodating space. The heating device is configured such that gas within the containment space can exit the containment space through the first through-hole, so that the flexible member fits into the structure to be heated.

2. The heating device according to claim 1, characterized in that, The heating device further includes an adapter, which protrudes from the surface of the flexible member opposite to the receiving space and is inserted into the first through hole; The adapter has an air intake channel, which is connected to the accommodating space.

3. The heating device according to claim 1, characterized in that, The heating device further includes at least two adsorption components, which are disposed on both sides of the flexible member along a first direction, the first direction intersecting the thickness direction; The adsorption component includes an adsorption element and a connecting element. The adsorption element is connected to at least one of the support element and the flexible element through the connecting element. The adsorption element and the flexible element are spaced apart in the first direction, and the adsorption element is used to fit against the blade.

4. The heating device according to claim 3, characterized in that, The number of first through holes is multiple, and the multiple first through holes are arranged in a second direction, with the first direction, the second direction and the thickness direction intersecting in pairs; Wherein, at least some of the adsorption components are spaced apart in the second direction.

5. The heating device according to claim 4, characterized in that, The plurality of adsorption components located on one side of the flexible member along the first direction are respectively arranged in a one-to-one correspondence with the plurality of adsorption components located on the other side of the flexible member along the first direction; Part of the adsorption component and part of the first through hole are disposed correspondingly in the first direction.

6. The heating device according to claim 3, characterized in that, The adsorption component includes a suction cup, the suction cup includes an adsorption surface and an exhaust port disposed on the adsorption surface, the suction cup is provided with an exhaust channel communicating with the exhaust port, and a one-way valve disposed on the exhaust channel; The adsorption surface is used to contact the blade and form an adsorption space, and the one-way valve is used to discharge the gas in the adsorption space through the exhaust port and the exhaust channel.

7. The heating device according to claim 6, characterized in that, The adsorption component further includes a housing, which is connected to the suction cup. The housing has an opening in the thickness direction and a first wall opposite to the opening. The suction cup covers the opening and forms a receiving cavity with a distance between it and the first wall. The connector is movably connected to the housing and is at least partially located within the receiving cavity.

8. The heating device according to claim 7, characterized in that, The adsorption component also includes a fixing member and a locking member. The fixing member is fixedly connected to the housing. The fixing member has a first wire passage that communicates with the receiving cavity. The fixing member is made of elastic material. The locking member is sleeved on the outer periphery of the fixing member and is movable relative to the fixing member in the first direction. In particular, the inner diameter of the locking member gradually decreases as it approaches the flexible member.

9. The heating device according to any one of claims 1 to 8, characterized in that, The heating device further includes a detection component connected to the flexible member and located within the receiving space; and / or The heating device further includes a control component, which is disposed within the flexible element and electrically connected to the heating element.

10. A heating device, characterized in that, include: A heating device, wherein the heating device is the heating device according to any one of claims 1 to 9; An air extraction device is connected to the accommodating space through the first through hole.

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