Photovoltaic module mounting structure

Abstract

The utility model provides a photovoltaic assembly installation structure. The photovoltaic module mounting structure comprises a photovoltaic module frame, a purline and a fixing piece, wherein the purline comprises a main body structure and a flange structure, the flange structure comprises a connecting plate connected to the main body structure and a fixing plate which is bent and extends from the edge of one side, deviating from the main body structure, of the connecting plate and is arranged opposite to the connecting plate, a slot is formed between the connecting plate and the fixing plate, and the photovoltaic module frame is provided with a bottom plate which can be inserted into the slot. According to the photovoltaic module installation structure, the load level of the photovoltaic module installation structure is increased with low cost, a novel module grounding mode is provided, and high-stability tracking support installation is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to photovoltaic module installation field, especially a photovoltaic module installation structure. BACKGROUND

[0002] Photovoltaic module installation methods are various, and essentially all are connected and fixed with the support through the installation hole on the frame. The installation of photovoltaic module can be roughly divided into two categories: fixed support installation and tracking support installation. The fixed support is fixed on the support by designing the module installation orientation, inclination angle and the like in advance, the module of the fixed support installation method cannot adjust the module orientation, inclination angle and the like, and cannot be adjusted with the sunrise and sunset to obtain the maximum power generation, but the module does not need to rotate, and each link connecting piece can realize fastening connection, and the overall load level is relatively strong. In order to obtain more power generation, the module often adopts the tracking support installation, the tracking support can follow the track of the sun, and the solar energy is concentrated on the solar cell panel, so that the efficiency of the photovoltaic module is improved, and the solar energy is maximized. However, the overall load performance of the tracking support is relatively low, and the installation cost is relatively high.

[0003] The installation design of the photovoltaic module must consider the requirements of various environmental parameters on the reliability of the module. In terms of load, the overall load level of the photovoltaic module after installation needs to meet the requirements of wind pressure, snow load and the like of the installation site. Compared with the fixed support installation, the efficiency of the tracking support installation can be improved by about 10%, but since the load level of the tracking support installation is far lower than that of the fixed support installation, in the area with relatively poor environment, if the tracking support installation cannot meet the environmental requirements, the installation method with higher power generation efficiency cannot be selected.

[0004] At present, the direction for strengthening the load level of the tracking support installation is to increase the design of thickened purlin, increase the supporting rod between the purlin and the module, and increase the reinforcing rib on the back of the module. The main tracking support purlin designs on the market are boat-shaped and omega-shaped (several characters), wherein the boat-shaped purlin structure is complex, has the best performance, but also has the highest cost, and has redundancy in design to cope with most climate conditions, and is suitable for areas with relatively high environmental load requirements. The mainstream purlin design is omega-shaped (several characters), and the key dimensions are the purlin section height, the purlin wall thickness, and the flange width. The structure is simple, the cost is relatively low, but the load performance is poor, and is suitable for areas with relatively low environmental load requirements. CONTENT OF THE UTILITY MODEL

[0005] The utility model aims at providing a photovoltaic module installation structure. The photovoltaic module installation structure increases the load level at a relatively low cost, and also provides a new module grounding method, and realizes the high-stable tracking support installation.

[0006] In order to realize the purpose of the utility model, the utility model adopts the following technical scheme:

[0007] According to one aspect of the present application, a photovoltaic module mounting structure is provided, which comprises a photovoltaic module frame, a purlin and a fixing member; wherein the purlin comprises a main body structure and a flange structure, the flange structure comprises a connecting plate connected to the main body structure, a fixing plate bent and extended from a side edge of the connecting plate away from the main body structure and arranged opposite to the connecting plate, a slot is formed between the connecting plate and the fixing plate, and the photovoltaic module frame has a bottom plate which can be inserted into the slot.

[0008] According to one embodiment of the present application, the main body structure is a long rectangular shell with one end open, the flange structure is located on both sides of the length direction opening edge of the main body structure, and the flange structure is a backfolding structure, and the two backfolding structures are symmetrically arranged.

[0009] According to one embodiment of the present application, one side of the photovoltaic module frame is a bottom plate, the bottom plate is provided with a first mounting hole, the flange structure is provided with a second mounting hole matched with the first mounting hole, and the fixing member penetrates through the first mounting hole and the second mounting hole to fix the photovoltaic module frame and the purlin.

[0010] According to one embodiment of the present application, the photovoltaic module mounting structure further comprises a connecting block, the connecting block is a plurality of rectangular structures, and the connecting block is located at one end of the cavity of the main body structure.

[0011] According to one embodiment of the present application, the photovoltaic module mounting structure further comprises a pressing block mounting position arranged at the intermediate gap position between the two connecting blocks, the pressing block mounting position is a plurality of, and the pressing block mounting position is used for mounting a pressing block.

[0012] According to one embodiment of the present application, a plurality of protrusions are arranged inside the flange structure, and the protrusions are conical structures.

[0013] According to one embodiment of the present application, a plurality of purlin mounting holes are arranged at the middle part of the main body structure, and the purlin mounting holes are used for mounting the purlin on the ground.

[0014] According to one embodiment of the present application, the second mounting hole penetrates the middle part of the flange structure, the second mounting hole is a runway-shaped hole, the first mounting hole is a circular hole, and the first mounting hole and the second mounting hole are a plurality of.

[0015] One embodiment of the present application has the following advantages or beneficial effects:

[0016] The utility model discloses a photovoltaic module mounting structure including photovoltaic module frame, purlin, fixing piece, connecting block and pressure block.

[0017] The purlin structure combines the photovoltaic module frame and the purlin completely, improves the load level, and the connecting block is connected in the purlin, and multiple pressure blocks are added to improve the overall load upper limit, the backfolding structure of the purlin flange wears the plating layer of the photovoltaic module frame to form contact conduction, only the support grounding is needed, a novel component grounding mode is provided, and high-stability tracking support installation is realized. BRIEF DESCRIPTION OF DRAWINGS

[0018] The above and other features and advantages of the present utility model will become more apparent by describing in detail example embodiments thereof with reference to the attached drawings in which:

[0019] Figure 1 It is the structure schematic view of purlin structure in the utility model.

[0020] Figure 2 It is the main view structure schematic view of purlin structure in the utility model.

[0021] Figure 3 It is Figure 2 The sectional view structure schematic view of.

[0022] Figure 4 It is Figure 3 The local enlarged view of.

[0023] Figure 5 It is the structure schematic view of photovoltaic module mounting structure in the utility model.

[0024] REFERENCE SIGNS:

[0025] 1, photovoltaic module frame;11, first mounting hole;12, bottom plate;2, purlin;21, main structure;211, purlin mounting hole;22, flange structure;221, second mounting hole;222, protrusion;3, connecting block;4, pressure block mounting position;5, photovoltaic glass. DETAILED DESCRIPTION

[0026] Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments, however, can be implemented in many different forms and should not be construed as limited to the implementations set forth herein; rather, these implementations are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. Like reference numerals refer to like elements throughout the figures, and thus a detailed description of them will not be repeated.

[0027] The terms "one", "a", "the", "said", are used to indicate the presence of one or more elements / components / etc.; the terms "include" and "have" are used to indicate an open-ended inclusion and refer to the possibility that additional elements / components / etc. can be present in addition to the listed elements / components / etc.

[0028] As Figures 1 to 5 The photovoltaic module mounting structure includes a photovoltaic module frame 1, a purlin 2, and a fixing member. The purlin 2 includes a main body structure 21 and a flange structure 22. The flange structure includes a connecting plate connected to the main body structure 21, a fixing plate bent and extended from a side edge of the connecting plate away from the main body structure 21 and arranged opposite to the connecting plate. A slot is formed between the connecting plate and the fixing plate. The photovoltaic module frame has a bottom plate that can be inserted into the slot.

[0029] The main body structure 21 is an open-ended rectangular shell. The flange structure 22 is located on both sides of the length direction opening edge of the main body structure 21. The flange structure 22 is a backfolding structure, and the two backfolding structures are symmetrically arranged.

[0030] One side of the photovoltaic module frame 1 is a bottom plate 12. The bottom plate 12 is provided with a first mounting hole 11. The flange structure 22 is provided with a second mounting hole 221 matched with the first mounting hole 11. The fixing member penetrates the first mounting hole 11 and the second mounting hole 221 to fix the photovoltaic module frame 1 and the purlin 2.

[0031] The photovoltaic module mounting structure further includes a plurality of connecting blocks 3. The connecting blocks 3 are rectangular structures. The connecting blocks 3 are located at one end of the cavity of the main body structure 21.

[0032] The photovoltaic module mounting structure further includes a plurality of pressing block mounting positions 4 arranged at the intermediate gap position between the two connecting blocks 3. The pressing block mounting positions 4 are used to mount pressing blocks.

[0033] The connecting blocks 3 in the cavity connect the two sides of the purlin 2. The connecting blocks 3 provide pressing block mounting positions and improve the overall stability of the purlin 2. The stress point of the purlin 2 is the flange structure 22. The two flange structures 22 are connected through the cavity of the purlin 2. This structure is less stable. When the stress is too large, the purlin 2 will deform to both sides. When the deformation is small, the height of the purlin 2 will be reduced, which will reduce the distance between the back glass of the module and the main shaft, and will increase the risk of panel explosion after the photovoltaic glass 5 deforms. When the stress is too large, the purlin 2 will be directly flattened, and the module installation will directly fail. The connecting blocks 3 in the cavity can share the stress when the two flange structures 22 are stressed, which improves the overall stability of the purlin 2. The pressing block mounting option is increased and the overall load limit is improved.

[0034] A plurality of protrusions 222 are arranged inside the flange structure 22. The protrusions 222 are conical structures.

[0035] The middle part of the main body structure 21 is provided with a plurality of purlin mounting holes 211 for mounting the purlin 2 to the ground.

[0036] The assembly frame insertion flange backfolding structure is provided with a protrusion 222 inside, which can wear the plated layer of the frame surface during the insertion of the frame into the backfolding structure, forming a contact and conduction. This design can reduce the frame grounding step, simplify the installation while reducing the installation cost, and only the support grounding needs to be performed as usual.

[0037] The photovoltaic module mounting structure fully combines with the photovoltaic module frame by designing a flange backfolding structure on the purlin 2, improving the fixing effect, and the full combination of the purlin and the frame can also realize synchronous deformation, so that the stress of the module can be shared to the purlin part, greatly improving the load capacity. Meanwhile, the connecting block is added in the purlin cavity to provide the prerequisite for the installation of the pressing block, and the module installation can freely choose whether to install the pressing block according to the environmental load requirement, and the purlin is connected on both sides to reduce the deformation of the purlin on both sides when stressed, thereby increasing the upper limit of the load for module installation. The backfolding structure is provided with a protrusion 222 inside, which can wear the plated layer of the module frame to form a contact and conduction when combined and installed with the photovoltaic module frame, thereby reducing the module frame grounding step, reducing the cost while simplifying the module installation step.

[0038] The second mounting hole 221 penetrates the middle part of the flange structure 22, and the second mounting hole 221 is a runway-shaped hole, and the first mounting hole 11 is a circular hole, and the first mounting hole 11 and the second mounting hole 221 are both multiple.

[0039] The purlin structure is optimized from a few-shaped structure to a convex-shaped structure, and the added flange backfolding structure wraps the photovoltaic module frame 1 from the upper and lower surfaces, fully combines with the photovoltaic module bottom plate 12, improves the installation and fixing effect, and the full combination of the purlin 2 and the photovoltaic module frame 1 can also realize synchronous deformation, so that the photovoltaic glass 5 deforms downward after being stressed, and since the junction box is located at the back glass, the distance between the module and the support main shaft is the maximum deformation space of the photovoltaic glass 5, and if the purlin 2 deforms synchronously, it can provide upward supporting force for the module, increase the deformation space of the photovoltaic glass 5, improve the upper limit of the load level, and greatly improve the load capacity.

[0040] The installation steps of the photovoltaic module mounting structure are as follows:

[0041] STEP1. Insert the module bottom plate into the purlin backfolding structure, align the module and the purlin mounting hole, and install and fix;

[0042] STEP2. Determine whether additional pressing block installation is required according to the environmental requirements to improve the load level;

[0043] STEP3. After the module and the purlin 2 are installed, the purlin 2 is fixed with the support main shaft.

[0044] STEP 4. Perform grounding of equipment such as brackets and combiner boxes, and test whether the grounding resistance meets the requirements;

[0045] STEP 5. Adjust the component tilt angle and set the bracket tracking program.

[0046] In this embodiment of the invention, the term "multiple" refers to two or more, unless otherwise explicitly defined. The terms "install," "connect," and "fix" should be interpreted broadly. For example, "connect" can mean a fixed connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention based on the specific circumstances.

[0047] In the description of the embodiments of this utility model, it should be understood that the terms "upper" and "lower" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or unit referred to must have a specific direction or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.

[0048] In this specification, the terms "an embodiment," "a preferred embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0049] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, the present utility model can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A photovoltaic module mounting structure, characterized in that, The utility model relates to a photovoltaic module frame (1), purlin (2) and fixing piece, wherein the purlin (2) includes main body structure (21) and flange structure (22), the flange structure includes connecting plate connected to the main body structure (21), fixed plate extended and arranged oppositely from the connecting plate one side edge away from the main body structure (21), the connecting plate and the fixed plate form the slot between, the photovoltaic module frame has the bottom plate (12) that can be inserted into the slot. The main body structure (21) is a long rectangular shell with one end opening, the flange structure (22) is located on both sides of the length direction opening edge of the main body structure (21), and the flange structure (22) is a backfolding structure, and two backfolding structures are symmetrically arranged. The bottom plate (12) is provided with a first mounting hole (11), the flange structure (22) is provided with a second mounting hole (221) matched with the first mounting hole (11), and the fixing piece penetrates the first mounting hole (11) and the second mounting hole (221) to fix the photovoltaic module frame (1) and the purlin (2).

2. A photovoltaic module mounting structure according to claim 1, wherein Further comprising connecting block (3), the connecting block (3) is multiple, the connecting block (3) is rectangular structure, the connecting block (3) is located in the cavity one end of the main body structure (21).

3. A photovoltaic module mounting structure according to claim 1, wherein Further comprising the pressing block installation site (4) in the intermediate gap position of two connecting blocks (3), the pressing block installation site (4) is multiple, and the pressing block installation site (4) is used to install the pressing block.

4. A photovoltaic module mounting structure according to claim 1, wherein The flange structure (22) is provided with a plurality of protrusions (222) inside, and the protrusions (222) are conical structures.

5. A photovoltaic module mounting structure according to claim 4, wherein The intermediate position of the main body structure (21) is provided with a plurality of purlin mounting holes (211), and the purlin mounting hole (211) is used to install the purlin (2) on the ground.

6. A photovoltaic module mounting structure according to claim 1, wherein The second mounting hole (221) penetrates the intermediate position of the flange structure (22), the second mounting hole (221) is a runway-shaped hole, the first mounting hole (11) is a circular hole, and the first mounting hole (11) and the second mounting hole (221) are multiple.

7. A photovoltaic module mounting structure according to claim 1, wherein ​ 8. A photovoltaic module mounting structure according to claim 3, wherein ​

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