Photovoltaic module support and photovoltaic system
By setting supporting beams and buffer structures in the photovoltaic module bracket, the problem of glass explosion caused by wind load and snow load in extreme weather conditions is solved, the pressure bearing capacity of the glass is improved and the light absorption efficiency is maintained.
Patent Information
- Application Number
- CN202422369351.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-27
- Publication Date
- 2025-09-23
- Estimated Expiration
- 2034-09-27
AI Technical Summary
In extreme weather conditions, wind loads, snow loads and other factors can cause the glass panels of photovoltaic modules to explode, affecting the normal operation of the photovoltaic modules.
A supporting beam is provided between adjacent supporting supports of the photovoltaic module support, and a buffer structure, such as an arched structure, is installed on the supporting beam to buffer the pressure on the photovoltaic module.
It effectively reduces the deformation of the photovoltaic module glass, improves the pressure-bearing capacity of the glass, and reduces the risk of glass explosion, while not affecting the light absorption efficiency of the photovoltaic module.
Smart Images
Figure CN223379110U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of photovoltaic brackets, and in particular to a photovoltaic component bracket and a photovoltaic system. Background Art
[0002] Photovoltaic power generation is a technology that converts solar energy into electrical energy. Its core component is the solar panel, also known as the photovoltaic module. Photovoltaic modules (also known as solar panels) are a key component of a photovoltaic power generation system. Typically, photovoltaic modules are mounted on a photovoltaic module support. Multiple photovoltaic module supports are arranged in a predetermined array and electrically connected to form a photovoltaic power generation system. To maximize the power output of the entire photovoltaic power generation system, the solar photovoltaic modules are positioned at a specific orientation and angle, taking into account the geographical, climatic, and solar energy resource conditions of the construction site, to optimize the utilization of solar radiation.
[0003] The main structure of photovoltaic modules includes glass, EVA film, solar cells and backboard. Since solar photovoltaic modules are set in an inclined state, they are affected by external factors such as wind load and snow load. The photovoltaic modules will be under certain pressure, which may cause the glass to burst, thereby affecting the normal operation of the photovoltaic modules.
[0004] It should be noted that the above content is not necessarily prior art, nor is it intended to limit the scope of patent protection of this application. Utility Model Content
[0005] The embodiments of the present application provide a photovoltaic module bracket and a photovoltaic system to solve or alleviate one or more technical problems raised above.
[0006] As a first aspect of an embodiment of the present application, an embodiment of the present application provides a photovoltaic assembly bracket, comprising:
[0007] A plurality of support brackets, wherein the plurality of support brackets are parallel to each other;
[0008] At least one supporting beam, the supporting beam being located between two adjacent supporting brackets and being used to arrange a photovoltaic assembly on the supporting beam;
[0009] Wherein, each of the supporting beams is provided with a buffer structure, and the buffer structure is used to buffer the pressure exerted on the photovoltaic assembly.
[0010] Optionally, the buffer structure includes at least one arch structure, and the top of the arch structure abuts against the photovoltaic component.
[0011] Optionally, when the number of the arch structure is one, two adjacent support brackets are on the same horizontal plane, and the distance between the top of the arch structure and the horizontal plane is greater than 0 mm and less than or equal to 25 mm.
[0012] Optionally, a clearance area is formed between two adjacent support brackets; one end of the support beam is connected to one of the support brackets, and the other end spans the clearance area and is connected to the other support bracket.
[0013] Optionally, each of the supporting beams is separately and independently arranged perpendicular to the supporting bracket.
[0014] Optionally, a junction box is provided between two adjacent support brackets, and the support beam does not contact the junction box.
[0015] Optionally, the distance between two adjacent support beams is 1300-1500 mm.
[0016] Optionally, the buffer structure is made of elastic material.
[0017] Optionally, two mutually parallel supporting main beams; a plurality of said supporting brackets are evenly spaced and arranged on the two said supporting main beams;
[0018] A rectangular tube, one end of which is connected to one of the supporting main beams, and the other end of which is connected to the other supporting main beam;
[0019] A column, one end of which is arranged on a horizontal plane, and the other end of which is hinged to the rectangular tube;
[0020] Wherein, the rectangular tube and the two supporting main beams are perpendicular to each other.
[0021] As a second aspect of an embodiment of the present application, an embodiment of the present application provides a photovoltaic system, including:
[0022] At least one photovoltaic module support as described above.
[0023] The above technical solution adopted in the embodiments of the present application may have the following advantages:
[0024] By setting a supporting beam between two adjacent supporting brackets, and providing a buffer structure on the supporting beam, the buffer structure can be used to buffer the equivalent stress or Mises stress exerted on the glass in the photovoltaic module, thereby reducing the degree of glass deformation, and then improving the pressure-bearing capacity of the glass without affecting the light absorption efficiency of the photovoltaic module, effectively improving the problem of glass explosion. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the multiple drawings represent the same or similar components or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings only depict some embodiments disclosed in this application and should not be construed as limiting the scope of this application.
[0026] Figure 1 It is a structural schematic diagram of the photovoltaic module bracket provided in an embodiment of the present application.
[0027] Figure 2 It is a schematic diagram of the partial structure of the photovoltaic module support provided in the embodiment of the present application.
[0028] Figure 3 It is a schematic structural diagram of the supporting beam of the photovoltaic module support provided in an embodiment of the present application.
[0029] Figure 4 This is a schematic diagram of the glass stress distribution and total deformation when the supporting bracket in the photovoltaic module bracket provided in the embodiment of the present application is an extended bracket and the distance between the top of the arch structure and the horizontal plane is 0 mm.
[0030] Figure 5 This is a schematic diagram of the glass stress distribution and total deformation when the supporting bracket in the photovoltaic module bracket provided in the embodiment of the present application is an extended bracket and the distance between the top of the arch structure and the horizontal plane is 25 mm.
[0031] Figure 6 This is a schematic diagram of the glass stress distribution and total deformation when the supporting bracket in the photovoltaic module bracket provided in the embodiment of the present application is a common beam bracket and the distance between the top of the arch structure and the horizontal plane is 0 mm.
[0032] Figure 7 This is a schematic diagram of the glass stress distribution and total deformation when the supporting bracket in the photovoltaic module bracket provided in the embodiment of the present application is a common beam bracket and the distance between the top of the arch structure and the horizontal plane is 25 mm.
[0033] Description of reference numerals:
[0034] 1. Support bracket; 2. Support beam; 21. Arch structure; 22. Yield area; 3. Photovoltaic module. DETAILED DESCRIPTION
[0035] In order to make the objectives, technical solutions, and advantages of this application more clearly understood, this application is further described in detail below with reference to the accompanying drawings and examples. It should be noted that the embodiments and features in the embodiments of this application can be combined with each other unless there is a conflict. This application will be described in detail below with reference to the accompanying drawings and in conjunction with the examples.
[0036] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way are interchangeable where appropriate, so that the embodiments of the present application described herein can, for example, be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.
[0037] Hereinafter, exemplary embodiments according to the present application will be described in more detail with reference to the accompanying drawings. It should be noted that these exemplary embodiments may be implemented in many different forms and should not be construed as being limited to the embodiments set forth herein.
[0038] like Figures 1 to 7 As shown, in a first aspect, the photovoltaic assembly support may include:
[0039] A plurality of supporting brackets 1, wherein the plurality of supporting brackets 1 are parallel to each other;
[0040] At least one supporting beam 2, the supporting beam 2 is located between two adjacent supporting brackets 1, and the supporting beam 2 is used to set the photovoltaic component 3;
[0041] Each supporting beam 2 is provided with a buffer structure, and the buffer structure is used to buffer the pressure on the photovoltaic assembly 3.
[0042] In this embodiment, a support beam 2 is provided between two adjacent support brackets 1, and a buffer structure is provided on the support beam 2. The buffer structure can be used to buffer the equivalent stress or Mises stress on the glass in the photovoltaic module 3, thereby reducing the degree of glass deformation, thereby improving the pressure bearing capacity of the glass without affecting the light absorption efficiency of the photovoltaic module 3, and effectively improving the problem of glass explosion. In addition, the photovoltaic module bracket of the embodiment of the present application improves the pressure bearing capacity of the glass without increasing the manufacturing cost of the photovoltaic module 3. Moreover, the support beam 2 in the embodiment of the present application can be used not only in the extension bracket of the conventional photovoltaic module bracket, but also in the common beam support bracket 1.
[0043] It should be noted that in extreme weather conditions, the glass on the photovoltaic module 3 will be subjected to equivalent stress or Mises stress due to wind load and snow load. The main reason why the photovoltaic module 3 bursts and cracks due to mechanical stress is the equivalent stress or Mises stress. The front pressure is strongly correlated with the deformation of the glass surface. When the glass is subjected to frontal pressure, the deformation of the glass has a great influence on the stress concentration. The greater the deformation of the glass, the more it exceeds the deformation that the glass can withstand, which will cause the glass to crack or burst.
[0044] In an optional embodiment, the buffer structure includes at least one arch structure 21 , and the top of the arch structure 21 abuts against the photovoltaic assembly 3 .
[0045] In this embodiment, the top of the arch structure 21 abuts against the photovoltaic module 3. When the glass in the photovoltaic module 3 is subjected to equivalent stress or Mises stress due to wind load and snow load, the arch structure 21 buffers the pressure on the photovoltaic module 3 by deformation, thereby reducing the possibility of glass bursting due to pressure.
[0046] In an optional embodiment, when the number of the arch structure 21 is one, two adjacent support brackets 1 are on the same horizontal plane, and the distance between the top of the arch structure 21 and the horizontal plane is greater than 0 mm and less than or equal to 25 mm.
[0047] In this embodiment, if Figure 4-5 As shown, when the supporting bracket 1 is an extended bracket and the distance between the top of the arch structure 21 and the horizontal plane is 0 mm, that is, the supporting beam 2 is a straight beam, the equivalent stress or Mises stress of the glass of the photovoltaic module 3 is 135.3 MPa, and the maximum deformation of the middle position of the glass is 70.7 mm; when the distance between the top of the arch structure 21 and the horizontal plane is 25 mm, the equivalent stress or Mises stress of the glass of the photovoltaic module 3 is 98 MPa, and the maximum deformation of the glass is 40 mm; through calculation, it can be seen that when the distance between the top of the arch structure 21 and the horizontal plane is 25 mm, compared with the straight beam, the equivalent stress or Mises stress of the glass in the photovoltaic module 3 is reduced by 27%, and the deformation of the glass is reduced by 40%, which greatly reduces the problem of glass cracking;
[0048] like Figure 6-7As shown, when the supporting bracket 1 is a common beam bracket and the distance between the top of the arch structure 21 and the horizontal plane is 0 mm, that is, the supporting beam 2 is a straight beam at this time, the equivalent stress or Mises stress of the glass of the photovoltaic module 3 is 407.11 MPa, and the maximum deformation of the middle position of the glass is 177.69 mm; when the distance between the top of the arch structure 21 and the horizontal plane is 25 mm, the equivalent stress or Mises stress of the glass of the photovoltaic module 3 is 325.47 MPa, and the maximum deformation of the glass is 40.733 mm. It can be seen from the calculation that when the distance between the top of the arch structure 21 and the horizontal plane is 25 mm, compared with the straight beam, the equivalent stress or Mises stress of the glass in the photovoltaic module 3 is reduced by 20%, and the deformation of the glass is reduced by 70%, which greatly reduces the problem of glass cracking.
[0049] Therefore, when the distance between the top of the arch structure 21 and the horizontal plane is greater than 0 mm and less than or equal to 25 mm, the photovoltaic module bracket can improve the pressure-bearing capacity of the glass without affecting the light absorption efficiency of the photovoltaic module 3, effectively solving technical problems such as glass panel explosion caused by extreme weather conditions such as wind load and snow load.
[0050] In an optional embodiment, a clearance area 22 is formed between two adjacent support brackets 1; one end of the support beam 2 is connected to one of the support brackets 1, and the other end spans the clearance area 22 and is connected to the other support bracket 1.
[0051] In this embodiment, the support beam 2 spans the yield area 22 and is connected to the two support bracket 1 beams, so that the buffer structure of the support beam 2 plays a buffering role on the photovoltaic component 3 in the entire yield area 22, thereby improving the overall buffering strength of the glass in the photovoltaic component 3, and thus reducing the possibility of glass breakage due to frontal pressure.
[0052] In an optional embodiment, each supporting beam 2 is separately and independently arranged perpendicular to the supporting bracket 1.
[0053] In this embodiment, the photovoltaic component 3 has no buffer support point in the entire yield area 22, and the photovoltaic component 3 is arranged on the supporting beam 2. Since the supporting beam 2 is respectively and independently arranged perpendicular to the supporting bracket 1, the photovoltaic component 3 is installed with high stability, and the buffering strength of the glass in the photovoltaic component 3 is also improved, thereby effectively improving the problem of glass explosion.
[0054] In an optional embodiment, a junction box is provided between two adjacent support brackets 1 , and the supporting beam 2 does not contact the junction box.
[0055] In this embodiment, the supporting beam 2 does not contact the junction box, which reduces the impact of the arrangement of the supporting beam 2 on the junction box.
[0056] In an optional embodiment, the distance between two adjacent supporting beams 2 is 1300-1500 mm, for example, 1300 mm, 1400 mm, or 1500 mm.
[0057] In this embodiment, when the distance between the two supporting beams 2 is greater than 1500 mm, the supporting area for the photovoltaic module 3 is reduced, resulting in uneven stress on the middle part of the photovoltaic module 3, which is prone to bending or sinking due to equal stress or Mises stress, thereby increasing the risk of glass breakage, especially when subjected to external loads (such as wind pressure or snow accumulation). In addition, the overall rigidity of the photovoltaic module support is weakened, and the wind resistance is reduced, making the photovoltaic system more susceptible to structural deformation or damage under strong wind conditions.
[0058] When the distance between the two support beams 2 is less than 1300 mm, more support beam 2 material is required to buffer the equivalent stress or Mises stress on the photovoltaic modules 3, which increases the cost of the photovoltaic system. This is especially noticeable in large-scale installations. In addition, a too small distance between the support beams 2 will limit the installation space of the modules, increase the complexity of the installation process, and thus increase labor and time costs.
[0059] Therefore, when the distance between two adjacent supporting beams 2 is 1300~1500mm, the stability and efficiency of the photovoltaic system are guaranteed, and the wind load and snow load resistance of the photovoltaic module 3 are improved, and the glass in the photovoltaic module 3 is reduced from bursting due to pressure.
[0060] In an optional embodiment, the material of the buffer structure is elastic material.
[0061] In this embodiment, the buffer structure made of elastic material can buffer the pressure on the glass in the photovoltaic module 3 by generating deformation, thereby effectively reducing the risk of the glass bursting due to pressure.
[0062] In an optional embodiment, two supporting main beams are parallel to each other; a plurality of supporting brackets 1 are evenly spaced and arranged on the two supporting main beams;
[0063] A rectangular tube, one end of the rectangular tube is connected to one of the supporting main beams, and the other end is connected to the other supporting main beam;
[0064] A column, one end of which is arranged on a horizontal plane, and the other end of which is hinged to the rectangular tube;
[0065] Among them, the rectangular tube and the two supporting main beams are perpendicular to each other.
[0066] The embodiments of the present application can provide a photovoltaic system comprising at least one photovoltaic module support as described in any of the above embodiments. The advantages of the photovoltaic module support described above are also possessed by this photovoltaic system and will not be repeated here. The application areas of the above photovoltaic system are wide-ranging and are not limited to photovoltaic power stations, such as ground power stations, rooftop power stations, and water-based power stations. It also includes various equipment and devices that use solar energy to generate electricity, such as user solar power supplies, solar street lights, solar cars, and solar buildings. Of course, it is understandable that the application scenarios of the photovoltaic system are not limited to these. In other words, the photovoltaic system can be used in all fields that require solar power generation. Taking the photovoltaic power generation system network as an example, the photovoltaic system may include a photovoltaic array, a combiner box, and an inverter. The photovoltaic array may be an array combination of multiple photovoltaic modules 3. For example, multiple photovoltaic modules 3 may form multiple photovoltaic arrays. The photovoltaic arrays are connected to a combiner box, which can combine the current generated by the photovoltaic arrays. The combined current flows through the inverter to convert it into the alternating current required by the mains power grid and then connects to the mains power grid to achieve solar power supply.
[0067] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.
[0068] For ease of description, the directions or positional relationships indicated by directional terms such as "front, back, up, down, left, right," "lateral, vertical, perpendicular, horizontal," and "top, bottom" are generally based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise specified, these directional terms do not indicate or imply that the devices or components referred to must have a specific direction or be constructed and operated in a specific direction, and therefore should not be understood as limiting the scope of protection of this application. The directional terms "inside" and "outside" refer to the inside and outside relative to the outline of the components themselves. For example, if the device in the drawings is inverted, the device described as "above" or "on top of" other devices or structures will be positioned "below" or "below" other devices or structures. Therefore, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used herein should be interpreted accordingly.
[0069] Unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be interpreted broadly. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.
[0070] Unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact via another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or diagonally above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly above or diagonally above the second feature, or may simply mean that the first feature is lower in level than the second feature.
[0071] Unless otherwise specifically stated, the relative arrangement of the parts and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to actual proportional relationships. The techniques, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific values should be interpreted as being merely exemplary and not as limitations. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, and therefore, once an item is defined in one figure, it does not need to be further discussed in subsequent figures.
[0072] It should also be noted that references to "one embodiment," "another embodiment," "an embodiment," and the like throughout this specification refer to specific features, structures, or characteristics described in conjunction with that embodiment as included in at least one embodiment generally described herein. The appearance of the same expression in multiple places in this specification does not necessarily refer to the same embodiment. Furthermore, when a specific feature, structure, or characteristic is described in conjunction with any embodiment, it is intended that such feature, structure, or characteristic, when implemented in conjunction with other embodiments, also fall within the scope of this application.
[0073] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.
[0074] It should also be noted that the above are only preferred embodiments of the present application and do not limit the scope of patent protection of the present application. Any equivalent structure or equivalent process transformation made using the contents of the description and drawings of this application, or directly or indirectly applied in other related technical fields, are also included in the scope of patent protection of the present application.
Claims
1. A photovoltaic module support, characterized in that: include: A plurality of support brackets (1), wherein the plurality of support brackets (1) are parallel to each other; at least one supporting beam (2), the supporting beam (2) being located on two adjacent supporting brackets (1), and the supporting beam (2) being used for arranging a photovoltaic assembly (3); Each of the supporting beams (2) is provided with a buffer structure, and the buffer structure is used to buffer the pressure exerted on the photovoltaic assembly (3); A clearance area (22) is formed between two adjacent support brackets (1); one end of the support beam (2) is connected to one of the support brackets (1), and the other end spans the clearance area (22) and is connected to the other support bracket (1).
2. The photovoltaic module support according to claim 1, characterized in that: The buffer structure comprises at least one arched structure (21), the top of the arched structure (21) abutting against the photovoltaic assembly (3).
3. The photovoltaic module support according to claim 2, characterized in that: When the number of the arched structure (21) is one, two adjacent support brackets (1) are located on the same horizontal plane, and the distance between the top of the arched structure (21) and the horizontal plane is greater than 0 mm and less than or equal to 25 mm.
4. The photovoltaic module support according to claim 1, characterized in that: Each of the supporting crossbeams (2) is respectively and independently arranged perpendicularly to the supporting bracket (1).
5. The photovoltaic module support according to claim 1, characterized in that: A junction box is provided between two adjacent support brackets (1), and the support beam (2) does not contact the junction box.
6. The photovoltaic module support according to claim 1, characterized in that: The distance between two adjacent support beams (2) is 1300-1500 mm.
7. The photovoltaic module support according to claim 1, characterized in that: The material of the buffer structure is elastic material.
8. The photovoltaic module support according to claim 1, characterized in that: Also includes: Two parallel supporting beams; A plurality of support brackets (1) are evenly spaced and arranged on the two support main beams; A rectangular tube, one end of which is connected to one of the supporting main beams, and the other end of which is connected to the other supporting main beam; A column, one end of which is arranged on a horizontal plane, and the other end of which is hinged to the rectangular tube; Wherein, the rectangular tube and the two supporting main beams are perpendicular to each other.
9. A photovoltaic system, characterized in that: include: At least one photovoltaic module support according to any one of claims 1 to 8.