Waterproof structure and photovoltaic device

Abstract

The application provides a waterproof structure and a photovoltaic device. The waterproof structure comprises a shell, a first waterproof film, a mounting plate and a second waterproof film. The shell is provided with a first window. The first waterproof film is arranged on the outer side of the shell and covers the first window. The first waterproof film comprises a first substrate layer and a first anti-fog layer, and the first anti-fog layer is arranged on the side of the first substrate layer facing the first window. The mounting plate is arranged on the inner side of the shell, and the mounting plate is provided with a second window, and the second window at least partially overlaps the first window. The second waterproof film is arranged on the side of the mounting plate facing the shell, and the second waterproof film covers the second window. By arranging the first waterproof film on the outer side of the shell and the second waterproof film on the mounting plate on the inner side of the shell, a double-layer waterproof structure is formed, and the waterproof performance is improved. The first waterproof film as the outer waterproof structure is relatively susceptible to the influence of the temperature difference between the inside and the outside, and the first anti-fog coating layer effectively reduces the fogging problem of the waterproof structure.

Description

Technical Field

[0001] This application relates to the field of electrical equipment technology, and more specifically, to waterproof structures and photovoltaic equipment. Background Technology

[0002] Existing inverters (such as photovoltaic inverters or energy storage inverters) used outdoors typically have displays on their casings for user convenience and monitoring. However, for outdoor inverters, the complex outdoor environment makes the existing waterproof protective film on the display screen prone to damage and peeling, allowing external water to enter the inverter and causing electrical safety issues. Furthermore, the inverter generates heat during operation, creating a temperature difference between the inside and outside. This is especially problematic in winter, rainy seasons, or when air humidity is high, causing condensation to form on the existing waterproof protective film, hindering timely data reading and operation. Utility Model Content

[0003] This application provides a waterproof structure and photovoltaic equipment to solve the above-mentioned technical problems.

[0004] The embodiments of this application are implemented as follows: A waterproof structure includes a shell, a first waterproof membrane, a mounting plate, and a second waterproof membrane. The shell has a first window. The first waterproof membrane is located on the outer side of the shell and covers the first window. The first waterproof membrane includes a first substrate layer and a first anti-fog layer, the first anti-fog layer being located on the side of the first substrate layer facing the first window. The mounting plate is located on the inner side of the shell and has a second window, the second window at least partially overlapping the first window. The second waterproof membrane is located on the side of the mounting plate facing the shell and covers the second window.

[0005] Thus, by installing a first waterproof membrane on the outside of the casing and a second waterproof membrane on the mounting plate inside the casing, a double-layer waterproof structure is formed. This seals the first and second windows that expose the display screen, improving the waterproof performance of photovoltaic equipment such as inverters when used outdoors and reducing safety issues caused by internal water ingress. Since the first waterproof membrane, as the outer waterproof structure, is relatively susceptible to temperature differences between the inside and outside, a first anti-fog coating is also installed on the inner side of the first waterproof layer to effectively reduce fogging issues in the waterproof structure, simplifying data reading and operation for users and improving the user experience.

[0006] In some embodiments: the second waterproof membrane includes a second substrate layer and a second anti-fog layer, the second anti-fog layer being disposed on the side of the second substrate layer opposite to the first waterproof membrane.

[0007] In some embodiments, the second waterproof membrane further includes a third anti-fog layer, which is disposed on the side of the second substrate layer facing the first waterproof membrane.

[0008] In some embodiments: the area of ​​the first anti-fog layer is smaller than the area of ​​the first substrate layer, and the first anti-fog layer is disposed corresponding to the first window. The first waterproof membrane also includes a first adhesive layer, which is disposed on the side of the first substrate layer facing the shell.

[0009] In some embodiments: the housing is provided with a first adhesive layer, the first adhesive layer is disposed around the first window, and the first adhesive layer is disposed corresponding to the first waterproof membrane.

[0010] In some embodiments: a boss is provided on the mounting plate, a second window is provided on the boss, the side of the boss facing the housing has a first surface, an adhesive is provided on the first surface, the adhesive is arranged around the second window, and a second waterproof membrane is provided on the side of the boss facing the housing and connected to the adhesive.

[0011] In some embodiments: a receiving groove is provided on the side of the boss away from the second waterproof membrane, and the receiving groove is used to install the display screen.

[0012] In some embodiments: the boss portion is located at the first window, and the first surface of the boss does not extend beyond the first window along the thickness direction of the housing.

[0013] In some embodiments: the housing has a recessed portion with a bottom wall, a first window is provided on the bottom wall, the bottom wall includes a first plane and a second plane facing opposite to each other, the first plane faces the outside of the housing, the second plane faces the inside of the housing, a first waterproof membrane is provided on the first plane, and a mounting plate is connected to the second plane.

[0014] In some embodiments: a sealing groove is provided on the second plane, the sealing groove surrounds to form a sealing area, the first window is located in the sealing area, and the mounting plate covers the sealing groove.

[0015] The embodiments of this application also provide a photovoltaic device, including electronic components, a display screen, and the waterproof structure described in the above embodiments. The electronic components are disposed within the housing of the waterproof structure and are electrically connected to the display screen. The display screen is mounted on the mounting plate of the waterproof structure, and a second window of the display screen is partially exposed on the mounting plate. A second waterproof membrane of the waterproof structure covers the display screen. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of a photovoltaic device with a waterproof structure according to an embodiment of this application.

[0018] Figure 2 for Figure 1 The diagram shows a partial structural exploded view of the photovoltaic device.

[0019] Figure 3 This is a schematic diagram of the structure of the first waterproof membrane in one embodiment of the waterproof structure, wherein (a) is a front view of the first waterproof membrane and (b) is a back view of the first waterproof membrane.

[0020] Figure 4 This is a schematic diagram of a waterproof structure in one embodiment, wherein (a) is an exploded structural diagram of the first waterproof membrane and the shell, and (b) is a structural diagram of the first waterproof membrane and the shell after assembly.

[0021] Figure 5 for Figure 4 The diagram shows a waterproof structure in another direction, where (a) is an exploded view of the mounting plate and the shell in the waterproof structure, and (b) is a structural diagram of the mounting plate and the shell after assembly.

[0022] Figure 6 The diagram shows the structure of the mounting plate and the second waterproof membrane in the waterproof structure. (a) is an exploded view of the second waterproof membrane and the mounting plate, (b) is a view of the mounting plate and the second waterproof membrane after assembly, and (c) is a view of the mounting plate and the second waterproof membrane from another direction after assembly.

[0023] Figure 7 This is an exploded structural diagram of the first waterproof membrane, the mounting plate, the second waterproof membrane, and the display screen.

[0024] Figure 8 for Figure 7 The diagram shows the structure in another direction.

[0025] Figure 9 This is a schematic diagram of the structure of electronic components and display screen in a photovoltaic device in one embodiment.

[0026] Figure 10 The diagram shows a partial structural schematic of a photovoltaic device, where (a) is an exploded view of the partial structure and (b) is an assembly diagram of the partial structure.

[0027] Figure 11 This is a cross-sectional structural diagram of the first waterproof membrane, mounting plate, second waterproof membrane, and display screen in one embodiment.

[0028] Explanation of key component symbols: Waterproof structure 100 Casing 10 First shell 11 Second shell 12 Recess 13 Bottom wall 131 First plane 1311 Second plane 1312 Sealing groove 132 Positioning post 133 First Window 14 Through hole 15 First waterproof membrane 20 First substrate layer 21 First anti-fog layer 22 First adhesive layer 23 Mounting plate 30 31 convex Positioning hole 32 Protrusion 33 First surface 311 Containment Container 312 Adhesive component 34 Second window 35 Second waterproof membrane 40 Second substrate layer 41 Second anti-fog layer 42 Third anti-fog layer 43 Fastener 50 Strengthened structure 60 Photovoltaic equipment 200 Electronic Components 201 Display screen 202 Display cover 2021 The following detailed description, in conjunction with the accompanying drawings, will further illustrate this application. Detailed Implementation

[0029] The technical solutions in 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.

[0030] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. When a component is said to be "set on" another component, it can be directly set on the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used herein in the specification of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "or / and" as used herein includes any and all combinations of one or more of the associated listed items.

[0032] Some embodiments of this application are described in detail. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0033] See Figures 1 to 11 This embodiment provides a waterproof structure 100, including a housing 10, a first waterproof membrane 20, a mounting plate 30, and a second waterproof membrane 40. The housing 10 has a first window 14. The first waterproof membrane 20 is located on the outside of the housing 10 and covers the first window 14. The first waterproof membrane 20 includes a first substrate layer 21 and a first anti-fog layer 22, with the first anti-fog layer 22 located on the side of the first substrate layer 21 facing the first window 14. The mounting plate 30 is located on the inside of the housing 10 and has a second window 35, which at least partially overlaps with the first window 14. The second waterproof membrane 40 is located on the side of the mounting plate 30 facing the housing 10 and covers the second window 35. The display screen 202 in the photovoltaic device 200 can be located on the side of the mounting plate 30 away from the first waterproof membrane 20, partially exposing the second window 35.

[0034] Thus, by providing a first waterproof membrane 20 on the outside of the housing 10 and a second waterproof membrane 40 on the mounting plate 30 inside the housing 10, a double-layer waterproof structure 100 is formed, sealing the first window 14 and the second window 35 for exposing the display screen 202. This improves the waterproof performance of photovoltaic equipment 200 such as inverters when used outdoors and reduces safety issues caused by internal water ingress. Since the first waterproof membrane 20, as the outer waterproof structure 100, is relatively susceptible to temperature differences between the inside and outside, a first anti-fog layer 22 is provided on the inner side of the first waterproof membrane 20 to effectively reduce fogging of the waterproof structure 100, simplifying data reading and operation for users and improving the user experience.

[0035] As part of the inner waterproof structure, the second waterproof membrane 40 is not in direct contact with the external environment and is relatively less affected by the temperature difference between the inside and outside. In some embodiments, the anti-fog coating may not be provided on the second waterproof membrane 40.

[0036] Furthermore, when a user touches the first waterproof membrane 20 or the first waterproof membrane 20 is squeezed by external forces, causing the first waterproof membrane 20 to adhere tightly to the second waterproof membrane 40, due to the setting of the first anti-fog layer 22, the first waterproof membrane 20 and the second waterproof membrane 40 will not have watermarks in the overlapping area of ​​the first window 14 and the second window 35, which can avoid affecting the observation of information on the display screen 202.

[0037] In some implementations, such as Figure 1 and Figure 2 As shown, the housing 10 includes a first housing 11 and a second housing 12, which are sealed together, forming a receiving cavity. A first window 14 is disposed on the first housing 11 and extends through it, serving to display the display area of ​​the display screen 202. A first waterproof membrane 20 is attached to the outer surface of the first housing 11, covering and sealing the first window 14. A mounting plate 30 is connected to the inner side of the first housing 11, and a second waterproof membrane 40 is disposed on the side of the mounting plate 30 facing the first housing 11. The second waterproof membrane 40 covers the second window 35 and seals the edge area of ​​the second window 35, reducing water leakage.

[0038] In some implementations, such as Figure 2 , Figure 3 and Figure 4 As shown, the area of ​​the first anti-fog layer 22 is smaller than the area of ​​the first substrate layer 21, and the first anti-fog layer 22 is correspondingly disposed with the first window 14. The first waterproof membrane 20 also includes a first adhesive layer 23, which is disposed on the side of the first substrate layer 21 facing the housing 10.

[0039] Specifically, the first adhesive layer 23 is disposed on the inner surface of the first substrate layer 21 in the area where the first anti-fog layer 22 is not disposed, which can reduce the damage of the adhesive material to the anti-fog layer material. The first waterproof membrane 20 can be sealed and bonded to the surface of the housing 10 through the first adhesive layer 23, thereby sealing the first window 14 and forming the outer waterproof structure 100.

[0040] In some embodiments, the area of ​​the first anti-fog layer 22 is less than or equal to the area of ​​the first window 14. When the first waterproof membrane 20 is attached to the outer surface of the housing 10, the first anti-fog layer 22 can be located at the first window 14 to cover the display area of ​​the display screen 202. In other embodiments, the area of ​​the first anti-fog layer 22 can also be larger than the area of ​​the first window 14 to fully cover the first window 14. This application is not limited to this.

[0041] In some embodiments, the housing 10 is provided with a first adhesive layer 23, which surrounds the first window 14 and corresponds to the first waterproof membrane 20. Specifically, the first adhesive layer 23 is disposed on the outer surface of the housing 10 in the area corresponding to the first waterproof membrane 20, for bonding and sealing the first waterproof membrane 20. In this case, the first adhesive layer 23 can be omitted from the inner side of the first substrate layer 21 in the first waterproof membrane 20, which helps to reduce the thickness of the first waterproof membrane 20. In other embodiments, the first adhesive layer 23 can also be disposed on the inner side of the first substrate layer 21, so that a double-layer adhesive structure is formed between the first waterproof membrane 20 and the housing 10, improving the sealing performance.

[0042] In some implementations, such as Figure 5 and Figure 6 As shown, the second waterproof membrane 40 includes a second substrate layer 41 and a second anti-fog layer 42, with the second anti-fog layer 42 disposed on the side of the second substrate layer 41 facing away from the first waterproof membrane 20. Thus, the inner side of the second waterproof membrane 40, serving as the inner waterproof layer, also has an anti-fog coating, reducing the problem of water vapor formation on the second waterproof membrane 40 and further improving the user experience. When the user touches the screen, due to the presence of the second anti-fog layer 42, no watermarks will appear when the second waterproof membrane 40 touches the display screen 202, further reducing the impact on the viewing experience of the display screen 202.

[0043] In some embodiments, such as Figure 7 As shown, a display cover 2021 can be provided on the surface of the display screen 202. The display cover 2021 is transparent and is used to protect the display screen 202. The second anti-fog layer 42 of the second waterproof membrane 40 is disposed opposite to the display cover 2021. When the user performs a touch operation, the second waterproof membrane 40 can contact the display cover 2021, and the second anti-fog layer 42 can reduce watermarks between the second waterproof membrane 40 and the display cover 2021.

[0044] In some embodiments, the second waterproof membrane 40 further includes a third antifog layer 43, which is disposed on the side of the second substrate layer 41 facing the first waterproof membrane 20. Thus, the third antifog layer 43 is disposed opposite to the first antifog layer 22, which can further reduce the generation of water mist or watermarks between the first waterproof membrane 20 and the second waterproof membrane 40.

[0045] In some embodiments, the areas of the second anti-fog layer 42 and the third anti-fog layer 43 are both smaller than the area of ​​the second substrate layer 41 and larger than the area of ​​the second window 35, so that the second anti-fog layer 42 and the third anti-fog layer 43 fully cover the second window 35, while leaving an area for sealing and bonding with the mounting plate 30 at the edge of the second substrate layer 41, thereby improving the reliability of the sealing connection and reducing the damage of the adhesive material to the anti-fog coating.

[0046] In some implementations, please refer to 5 to Figure 8 The mounting plate 30 has a boss 31, and a second window 35 is located on the boss 31. The side of the boss 31 facing the housing 10 has a first surface 311, and an adhesive member 34 is provided on the first surface 311, surrounding the second window 35. A second waterproof membrane 40 is located on the side of the boss 31 facing the housing 10 and is connected to the adhesive member 34. The separate structure between the second waterproof membrane 40 and the mounting plate 30 allows the materials of the mounting plate 30 and the second waterproof membrane 40 to be different, meeting different structural strength requirements, and also simplifies the assembly difficulty between the second waterproof layer and the mounting plate 30.

[0047] In some embodiments, a receiving groove 312 is provided on the side of the boss 31 facing away from the second waterproof membrane 40. The receiving groove 312 is used to install the display screen 202. In this way, the installation position of the display screen 202 on the mounting plate 30 can be positioned, reducing problems such as shaking or falling off the display screen 202.

[0048] In some embodiments, the boss 31 is partially disposed in the first window 14, and the first surface 311 of the boss 31 does not extend beyond the first window 14 along the thickness direction of the housing 10. Specifically, the length, width, and other dimensions of the boss 31 are correspondingly set to the first window 14. Along the thickness direction of the housing 10, the boss 31 can be at least partially embedded in the first window 14, which is beneficial for positioning the mounting plate 30 and the housing 10, facilitating subsequent operations such as screwing, and also allows the mounting plate 30 to be as close as possible to the second plane 1312, improving the sealing performance of the inner side of the first housing 11. Furthermore, the fact that the first surface 311 of the boss 31 does not extend beyond the first window 14 can reduce the impact of the boss 31 on the first waterproof membrane 20, maintain the flatness of the outer surface of the first waterproof membrane 20, and reduce the risk of the first waterproof membrane 20 bulging or falling off.

[0049] In some implementations, such as Figures 1 to 5 As shown, the housing 10 has a recess 13, specifically, the recess 13 is provided on the first housing 11. The recess 13 has a bottom wall 131, and a first window 14 is provided on the bottom wall 131 and extends through the bottom wall 131. The bottom wall 131 includes a first plane 1311 and a second plane 1312 facing each other. The first plane 1311 faces the outside of the housing 10, and the second plane 1312 faces the inside of the housing 10. A first waterproof membrane 20 is provided on the first plane 1311 and covers the first window 14. A mounting plate 30 is connected to the second plane 1312 to position the relative positions of the first window 14 and the second window 35, thereby positioning the relative positions of the first waterproof membrane 20 and the second waterproof membrane 40, reducing the problem that the display area of ​​the display screen 202 cannot be fully displayed in the first window 14 due to the loosening and misalignment of the mounting plate 30.

[0050] In some embodiments, the first adhesive layer 23 on the first waterproof membrane 20 seals the first substrate layer 21 and the first plane 1311, forming an external waterproof structure on the outside of the first housing 11, reducing the problem of water leakage from the first window 14. The area of ​​the first substrate layer 21 in the first waterproof membrane 20 can also be approximately the same as that of the first plane 1311, which helps to increase the sealing connection area between the first substrate layer 21 and the first plane 1311, improve the connection reliability, and further reduce the risk of water leakage.

[0051] In some embodiments, the thickness of the first waterproof membrane 20 is less than the depth of the recess 13 along the thickness direction of the housing 10. Thus, after the first waterproof membrane 20 is attached to the first plane 1311, it is contained within the recess 13, and the outer surface of the first waterproof membrane 20 does not protrude from the recess 13. This helps reduce the risk of the first waterproof membrane 20 being scratched by the external environment during the use of the photovoltaic equipment 200, lowering the risk of the first waterproof membrane 20 falling off or being damaged, thereby improving waterproof performance.

[0052] In some embodiments, the thickness of the first waterproof membrane 20 is 0.3mm-0.8mm. Under this thickness condition, the first waterproof membrane 20 has better flexibility and light transmittance performance, and does not affect the viewing of the display content and touch operation of the display screen 202. In some embodiments, the thickness of the first waterproof membrane 20 is preferably 0.5mm. In other embodiments, the thickness of the first waterproof membrane 20 can also be any value or any range of 0.3mm, 0.4mm, 0.5mm, 0.6mm, 0.7mm and 0.8mm, as long as it meets the design requirements, and this application is not limited to this.

[0053] In some embodiments, the thickness of the second waterproof membrane 40 may also be 0.3mm-0.8mm. The thickness of the second waterproof membrane 40 may be the same as or different from that of the first waterproof membrane 20. This application is not limited thereto.

[0054] In some embodiments, the materials of the first substrate layer 21 and the second substrate layer 41 may be, but are not limited to, polycarbonate (PC) materials, which have good impact resistance, heat resistance, transparency, etc., and moderate hardness, good compatibility, and can be well bonded to the housing 10 and the mounting plate 30.

[0055] The materials of the first anti-fog layer 22, the second anti-fog layer 42, and the third anti-fog layer 43 include, but are not limited to, nano anti-fog coating materials, and have good light transmittance.

[0056] In some embodiments, the second plane 1312 is further provided with a sealing groove 132, such as Figure 5As shown, the sealing groove 132 surrounds and forms a sealing area, with the first window 14 located within the sealing area. The mounting plate 30 covers the sealing groove 132. The sealing groove 132 can be filled with a density-enhancing material, including but not limited to sealant, sealing rings, and rubber components. When the mounting plate 30 connects to the second plane 1312 and covers the sealing groove 132, the sealing material is pressed between the mounting plate 30 and the second plane 1312 to achieve a sealed connection between them, sealing the gaps between the mounting plate 30, the second plane 1312, and the first window 14, further improving waterproofing performance.

[0057] In some embodiments, the second plane 1312 further includes a positioning post 133, which is located on the side of the sealing groove 132 away from the first window 14, i.e., the positioning post 133 is located on the outside of the sealing area. The mounting plate 30 is provided with a positioning hole 32 corresponding to the positioning post 133. The waterproof structure 100 also includes a fastener 50, which passes through the positioning hole 32 and connects to the positioning post 133 to achieve locking and positioning between the mounting plate 30 and the housing 10. The fastener 50 includes, but is not limited to, screws, bolts, etc., and connects to the positioning post 133 by threaded engagement. During the tightening process of the fastener 50, it can assist the mounting plate 30 in pressing the sealing element to form an internal waterproof structure 100 on the inner side of the first housing 11. The connection between the mounting plate 30 and the housing 10 is achieved through the fastener 50, which also facilitates subsequent inspection and replacement of parts, reducing maintenance costs.

[0058] In some embodiments, the number of positioning posts 133 and positioning holes 32 are four in total, symmetrically distributed on the second plane 1312 and the mounting plate 30, and evenly distributed on the outer side of the sealing area. This helps to balance the force between the mounting plate 30 and the bottom wall 131, allowing the mounting plate 30 to evenly press the sealing element, thereby improving the sealing effect. In other embodiments, the number of positioning posts 133 and positioning holes 32 may be more or less than four, and this application is not limited to this.

[0059] In some embodiments, an adhesive layer may be provided on the side surface of the mounting plate 30 facing the bottom wall 131 to seal and bond the second plane 1312, thereby forming a double-sealed connection between the mounting plate 30 and the bottom wall 131 through mechanical locking and adhesive bonding, further improving the sealing effect between the mounting plate 30 and the housing 10 and reducing the risk of water leakage.

[0060] In some embodiments, the bottom wall 131 is further provided with through holes 15, which are spaced apart on the sides of the first window 14, and the first waterproof membrane 20 covers the through holes 15. The mounting plate 30 is also provided with protrusions 33 corresponding to the through holes 15, which are partially disposed in the through holes 15 and are used to install buttons. In some embodiments, the protrusions 33 can be elastic or flexible structures, which facilitates the user to press the protrusions 33 from the outside of the first waterproof membrane 20. The protrusions 33 can also be hollow structures to accommodate buttons and other accessories. In some embodiments, there can be multiple through holes 15, which can be spaced apart on one side of the first window 14 or spaced apart on multiple sides of the first window 14 according to different needs. This application is not limited to this. The number and position of the protrusions 33 correspond to the through holes 15, and each protrusion 33 is partially disposed in a through hole 15. In this way, it is convenient for the user to distinguish different buttons from the outside of the first waterproof membrane 20, reducing the problem of accidental touch. In some embodiments, the shapes and sizes of the plurality of through holes 15 may be the same or different, and the shapes and sizes of the plurality of protrusions 33 are also configured to correspond to the plurality of through holes 15 to meet the size requirements of different buttons.

[0061] In some implementations, such as Figure 5 and Figure 6 As shown, the mounting plate 30 also has a reinforcing structure 60 on the side facing away from the second waterproof membrane 40. The reinforcing structure 60 may be, but is not limited to, a reinforcing rib or similar structure. The reinforcing structure 60 is arranged around the second window 35 and the protrusion 33. The reinforcing structure 60 protrudes from the surface of the mounting plate 30 and can be integrally formed with the mounting plate 30, which helps to improve the structural strength of the mounting plate 30 and allows the back of the mounting plate 30 to stably mount and support circuit boards and other components.

[0062] In some embodiments, the positioning hole 32 may also be partially formed on the reinforcing structure 60, so that the positioning hole 32 passes through the reinforcing structure 60 and the mounting plate 30. In this way, when the fastener 50 is assembled into the positioning hole 32, the end of the fastener 50 away from the positioning post 133 can cooperate with the reinforcing structure 60, thereby improving the connection reliability between the mounting plate 30 and the housing 10.

[0063] In some embodiments, such as Figure 9 and Figure 10As shown, the circuit board of the electronic component 201 in the photovoltaic device 200 can also be assembled onto the side of the mounting plate 30 facing away from the second waterproof membrane 40 using fasteners 50. Specifically, the fasteners 50 can pass through the circuit board and the positioning hole 32 before being connected to the positioning post 133, thereby achieving synchronous installation and positioning of the circuit board and the mounting plate 30 on the housing 10 and improving assembly efficiency. The display screen 202 is installed on the side of the circuit board facing the mounting plate 30. When the circuit board and the mounting plate 30 are assembled together, the display screen 202 is at least partially housed in the receiving groove 312 of the boss 31, and the display area of ​​the display screen 202 is exposed above the second window 35.

[0064] In some embodiments, such as Figure 11 As shown, the first waterproof membrane 20, the second waterproof membrane 40, and the display screen 202 are spaced apart from each other, which can reduce the impact of friction between different surfaces on the anti-fog layer material. The air gaps also form a heat insulation layer, reducing water mist formation on the surface of the display screen 202. The first waterproof membrane 20 and the second waterproof membrane 40 are flexible materials; when pressed by the user from the outside, they can deform and adhere to the surface of the display screen 202, facilitating touch operation.

[0065] In other embodiments, the first waterproof membrane 20, the second waterproof membrane 40, and the display screen 202 may also be partially attached together, which is beneficial to improving the sensitivity of the touch operation of the display screen 202. This application is not limited to this.

[0066] Please refer to it again. Figure 1 and Figure 2 This application also provides a photovoltaic device 200, which may be, but is not limited to, a photovoltaic inverter or an energy storage inverter. The photovoltaic device 200 includes an electronic component 201, a display screen 202, and the waterproof structure 100 described in the above embodiments. The electronic component 201 is disposed within the housing 10 of the waterproof structure 100 and is electrically connected to the display screen 202. The display screen 202 is mounted on the mounting plate 30 of the waterproof structure 100, and a portion of the display screen 202 is exposed through a second window 35 on the mounting plate 30. A second waterproof membrane 40 of the waterproof structure 100 covers the display screen 202.

[0067] The waterproof structure 100 and photovoltaic equipment 200 of this application form a double-layer waterproof structure 100 by providing a first waterproof membrane 20 on the outside of the housing 10 and a second waterproof membrane 40 on the mounting plate 30 inside the housing 10. This seals the first window 14 and the second window 35 used to expose the display screen 202, improving the waterproof performance of the inverter and other photovoltaic equipment 200 when used outdoors and reducing safety issues caused by internal water ingress. Since the first waterproof membrane 20, as the outer waterproof structure 100, is relatively susceptible to the influence of internal and external temperature differences, a first anti-fog layer 22 is provided on the inner side of the first waterproof membrane 20 to effectively reduce fogging of the waterproof structure 100, simplifying data reading and operation for users and improving the user experience.

[0068] The above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to the above preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions to the technical solutions of this application should not depart from the spirit and scope of the technical solutions of this application.

Claims

1. A waterproof structure, characterized in that, include: The casing has a first window. A first waterproof membrane is disposed on the outside of the housing, covering the first window. The first waterproof membrane includes a first substrate layer and a first anti-fog layer, with the first anti-fog layer disposed on the side of the first substrate layer facing the first window. A mounting plate is disposed on the inner side of the housing, and the mounting plate has a second window that at least partially overlaps with the first window; A second waterproof membrane is disposed on the side of the mounting plate facing the housing, and the second waterproof membrane covers the second window.

2. The waterproof structure according to claim 1, characterized in that: The second waterproof membrane includes a second substrate layer and a second anti-fog layer, wherein the second anti-fog layer is disposed on the side of the second substrate layer opposite to the first waterproof membrane.

3. The waterproof structure according to claim 2, characterized in that: The second waterproof membrane also includes a third anti-fog layer, which is disposed on the side of the second substrate layer facing the first waterproof membrane.

4. The waterproof structure according to claim 1, characterized in that: The area of ​​the first anti-fog layer is smaller than the area of ​​the first substrate layer, and the first anti-fog layer is disposed corresponding to the first window. The first waterproof membrane further includes a first adhesive layer, which is disposed on the side of the first substrate layer facing the housing; and / or, The housing is provided with a first adhesive layer, which is disposed around the first window and is disposed corresponding to the first waterproof membrane.

5. The waterproof structure according to claim 1, characterized in that: The mounting plate is provided with a boss, and the second window is provided on the boss. The boss has a first surface on the side facing the housing. The first surface is provided with an adhesive component, which is arranged around the second window. The second waterproof membrane is provided on the side of the boss facing the housing and is connected to the adhesive component.

6. The waterproof structure according to claim 5, characterized in that: The boss has a receiving groove on the side opposite to the second waterproof membrane, and the receiving groove is used to install the display screen.

7. The waterproof structure according to claim 5, characterized in that: The boss portion is located at the first window, and along the thickness direction of the housing, the first surface of the boss does not extend beyond the first window.

8. The waterproof structure according to claim 1, characterized in that: The housing has a recessed portion with a bottom wall. The first window is located on the bottom wall. The bottom wall includes a first plane and a second plane facing each other. The first plane faces the outside of the housing, and the second plane faces the inside of the housing. The first waterproof membrane is located on the first plane, and the mounting plate is connected to the second plane.

9. The waterproof structure according to claim 8, characterized in that: The second plane is provided with a sealing groove, which surrounds and forms a sealing area. The first window is located within the sealing area, and the mounting plate covers the sealing groove.

10. A photovoltaic device, characterized in that, The device includes electronic components, a display screen, and a waterproof structure as described in any one of claims 1-9, wherein the electronic components are disposed within the housing of the waterproof structure, the electronic components are electrically connected to the display screen, the display screen is mounted on a mounting plate of the waterproof structure, and the display screen partially exposes a second window on the mounting plate, and a second waterproof membrane of the waterproof structure covers the display screen.

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