Photovoltaic installation structure and photovoltaic support

Abstract

The utility model provides a photovoltaic installation structure and a photovoltaic support. The photovoltaic installation structure comprises frames of a photovoltaic module and a pressing block used for pressing two adjacent frames on a purline of a photovoltaic support. The pressing block comprises an installation part used for being assembled with the purline. The pressing block further comprises two pressing parts used for being connected with the frame, and the two pressing parts are arranged on the two opposite sides of the installation part respectively. At least one side wall of each frame is provided with a slotting part used for containing the pressing part, at least part of the pressing part can be inserted into the slotting part, and the installation part and the purline are assembled to generate pressing force enabling the pressing part to act on the slotting part. The photovoltaic mounting structure can prevent the problem that a large-area photovoltaic module continuously falls off due to looseness of individual frames, is simple in structure and easy and convenient to mount, and can reduce the material consumption and cost of the pressing blocks to a certain extent.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic power generation, and in particular to a photovoltaic installation structure and a photovoltaic bracket. Background Art

[0002] Photovoltaic power generation is a new energy form that is being vigorously developed around the world. It is also the power generation method with the largest installed capacity and the largest growth rate among new energy sources. In recent years, photovoltaic power generation has become the fastest growing form of power generation in the energy field, and the application of photovoltaic power generation has made great progress.

[0003] In photovoltaic power generation applications, the main power generation equipment is photovoltaic modules, which are usually flat-plate modules. In order to increase power generation efficiency and speed up installation, the size of photovoltaic modules is gradually increasing. At the same time, in photovoltaic power stations, in order to ensure the maximum power generation capacity of the modules, photovoltaic brackets are used to support and fix the photovoltaic modules, ensure that the photovoltaic modules form a certain inclination angle, and resist bad weather.

[0004] Usually, the connection between the photovoltaic module and the photovoltaic bracket is bolt installation or block installation. Among them, the bolt installation is to use 4-8 bolts to directly connect the mounting hole under the photovoltaic module frame and the component mounting hole of the bracket. This method is a single-point connection between the photovoltaic module and the bracket. When the photovoltaic module frame is thin, when it is affected by strong winds, the frame is only partially stressed at the bolt part, and the frame is easy to tear, causing the module and the bracket to loosen, and the photovoltaic module to loosen or fall off.

[0005] The patent application with the Chinese publication number "CN217590669U" discloses a component pressing block, which is used to press two adjacent photovoltaic components onto the purlin. The component pressing block includes a hole-setting portion, which is provided with a through hole for the installation bolt to pass through. The component pressing block also has a stop surface, which protrudes upward from the hole-setting portion. The stop surface limits the rotation of the installation bolt by abutting against the bolt head of the installation bolt. The utility model also provides a photovoltaic bracket including the above-mentioned component pressing block. The above-mentioned component pressing block can simplify the installation operation of the photovoltaic component.

[0006] The method of using Π-shaped, Ω-shaped or U-shaped pressing blocks to press the components on the bracket purlins can protect the component frame from being damaged. The pressing block and the component frame are in surface contact, and the surface where the pressing block contacts the frame is serrated or wavy, and the friction between the pressing block and the frame is increased by downward pressure. When the pressing block is loose, the component is very easy to loosen from the pressing block and slide down due to gravity. At the same time, when one component in an array slides down, other components are affected by the loose pressing block, which is easy to cause a domino-like large-area slide. Utility Model Content

[0007] The utility model aims to provide a photovoltaic installation structure and a photovoltaic bracket, with a firm frame connection and a simple structure.

[0008] One aspect of the utility model provides a photovoltaic mounting structure, comprising a frame for a photovoltaic component and a pressing block for pressing two adjacent frames onto a purlin of a photovoltaic bracket, wherein the pressing block comprises a mounting portion for assembling with the purlin; the pressing block also comprises two pressing portions for connecting with the frame, and the two pressing portions are respectively arranged on opposite sides of the mounting portion; at least one side wall of each of the frame is provided with a groove portion for accommodating the pressing portion, and at least a portion of the pressing portion can be inserted into the groove portion, and the mounting portion and the purlin are assembled to generate a pressing force that causes the pressing portion to act on the groove portion.

[0009] In one embodiment, the clamping portion on at least one side is provided with a snap-fitting portion, and the side wall of the frame includes a snap-fitting portion opposite to the snap-fitting portion; the snap-fitting portion is snap-fitted to the snap-fitting portion to prevent the clamping portion from detaching from the slotted portion.

[0010] In one embodiment, the snap-fitting portion includes a downward pressing surface, and the pressing surface is provided with at least one inverted tooth-shaped protrusion; the grooved portion is an opening, and the opening passes through the side wall of the frame, and the snap-fitting portion is a plate-like structure opposite to the pressing surface; the inverted tooth-shaped protrusion acts on the plate-like structure, and the pressing force causes the inverted tooth-shaped protrusion and the plate-like structure to contact and tightly engage.

[0011] In one embodiment, the frame includes two side walls arranged side by side, and both side walls are located on one side of the frame; each side wall is respectively provided with openings that are interconnected; there are at least two inverted tooth-like protrusions; the pressing portion can pass through the two openings, and the inverted tooth-like protrusions act on the two plate-like structures, and the pressing force causes the inverted tooth-like protrusions and the two plate-like structures to contact and tightly engage with each other.

[0012] In one embodiment, the inverted tooth-shaped protrusion includes a first surface and a second surface that are connected, the first surface is inclined toward the mounting portion, and the second surface is perpendicular to the clamping surface; the plate-like structure includes an inner wall surface that is opposite to the outer wall surface of the side wall, and the inner wall surface is stopped by the second surface.

[0013] In one embodiment, the pressing surface is provided with a recessed portion for receiving the plate-like structure, and the second surface of the inverted tooth-shaped protrusion provides at least a portion of the recessed portion.

[0014] In one embodiment, the pressing block also includes two upwardly protruding limiting portions, each of which is connected to the mounting portion and the clamping portion; the two limiting portions respectively provide stop surfaces opposite to each other and facing the outside of the pressing block, and the outer wall surface of the side wall of the frame is stopped by the stop surface to limit the distance between two adjacent frames.

[0015] In one embodiment, the longitudinal cross-sections of the limiting portion and the mounting portion are U-shaped, and the mounting portion connects the lower ends of the two limiting portions.

[0016] In one embodiment, the mounting portion is provided with a mounting hole extending vertically therethrough; the purlin is provided with a connecting hole; a gap is provided between the lower end of the mounting portion and the purlin in the vertical direction; a fastener is fastened through the mounting hole, the gap and the connecting hole so that the pressing block presses the frame and the purlin from the groove portion.

[0017] Another aspect of the utility model provides a photovoltaic bracket, including purlins and also including any of the photovoltaic mounting structures described above; the purlins are located below the frame and the pressing block, and the pressing block is installed on the purlins, so that two adjacent frames are pressed against the purlins.

[0018] The photovoltaic mounting structure of the utility model utilizes the matching relationship between the pressing part and the slotted part of the pressing block, and the pressing force generated by the assembly of the mounting part and the purlin to make the pressing part act on the slotted part, so that the pressing block can be tightly connected to the frame, and the frame will not fall off due to the loosening of the pressing block. In an array of photovoltaic modules, the modules in the same row are connected as a whole through the frame, and the connection between the frames through the pressing block can ensure that the force on the installation point is balanced, and the problem of continuous falling off of large-area photovoltaic modules due to the loosening of individual frames can be prevented. The connection stability is better, and the structure is simple and the installation is easy, which can reduce the material and cost of the pressing block to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and other features, properties and advantages of the present invention will become more apparent through the following description in conjunction with the accompanying drawings and embodiments, in which:

[0020] Figure 1 It is a cross-sectional schematic diagram of an embodiment of a photovoltaic bracket according to the utility model;

[0021] Figure 2 yes Figure 1 The structural schematic diagram of the photovoltaic bracket shown;

[0022] Figure 3 yes Figure 1 A schematic structural diagram of the photovoltaic bracket at another angle shown;

[0023] Figure 4yes Figure 1 The schematic diagram of the structure of the pressing block of the photovoltaic support shown;

[0024] Figure 5 yes Figure 1 A cross-sectional view of a pressing block of the photovoltaic support shown;

[0025] Figure 6 yes Figure 1 The schematic diagram of the structure of the frame of the photovoltaic support shown;

[0026] Figure 7 yes Figure 1 A cross-sectional view of the frame of the photovoltaic support shown. DETAILED DESCRIPTION

[0027] Reference will now be made in detail to embodiments of the present invention, one or more examples of which are shown in the accompanying drawings. Each example is provided to explain the present invention, rather than to limit the present invention. In fact, it will be apparent to those skilled in the art that various modifications and variations may be made in the present invention without departing from the scope or spirit of the present invention. For example, a feature shown or described as part of one embodiment may be used together with another embodiment to produce yet another embodiment. Therefore, the present invention is intended to cover these modifications and variations that fall within the scope of the appended claims and their equivalents.

[0028] As used herein, the term "inner" refers to a position close to the axis of the structure, and the term "outer" refers to a position away from the axis of the structure. The terms "upper" and "lower" refer to the positions of the structure and the axis of the structure. Figure 1 The assembly relationship shown is the relative relationship between the structures under the coordinates. The terms "first" and "second" can be used interchangeably to distinguish one component from another, and are not intended to indicate the position or importance of each component.

[0029] like Figures 1 to 3 The photovoltaic support 1 shown includes a photovoltaic mounting structure and a purlin 10. The photovoltaic mounting structure includes a frame 100 of a photovoltaic assembly and a pressing block 200 for pressing two adjacent frames 100 onto the purlin 10 of the photovoltaic support 1. The frame 100 is an outer frame for protecting and supporting the assembly and glass laminate, usually made of aluminum alloy, steel or non-metallic materials. The purlin 10 is a component for supporting and fixing the photovoltaic mounting structure, usually made of materials such as aluminum alloy or stainless steel. The purlin 10 is located below the frame 100 and the pressing block 200, and the pressing block 200 is installed on the purlin 10, so that the two adjacent frames 100 are pressed onto the purlin 10.

[0030] Combination Figure 4 and Figure 5The illustrated pressing block 200 includes a mounting portion 210 for assembling with the purlin 10 and two pressing portions 220 for connecting with the frame 100, and the two pressing portions 220 are respectively arranged on opposite sides of the mounting portion 210. At least one side wall 110 of each frame 100 is provided with a slotted portion 120 for accommodating the pressing portion 220, and at least part of the pressing portion 220 can be inserted into the slotted portion 120. The mounting portion 210 and the purlin 10 are assembled to generate a pressing force that causes the pressing portion 220 to act on the slotted portion 120. By utilizing the matching relationship between the pressing portion 220 and the slotted portion 120 of the pressing block 200, and the pressing force that causes the pressing portion 220 to act on the slotted portion 120 generated by the mounting portion 210 and the purlin 10, the pressing block 200 can be tightly connected to the frame 100, and the frame 100 will not fall off due to the loosening of the pressing block 200. In an array of photovoltaic modules, the modules in the same row are connected as a whole through the frame 100. The frames 100 are connected through the pressing blocks 200 to ensure balanced force on the installation points and prevent the problem of continuous falling off of large-area photovoltaic modules due to loosening of individual frames 100. The structure is simple and the installation is easy, which can reduce the material and cost of the pressing blocks 200 to a certain extent.

[0031] The pressing block 200 is not limited to Figures 1 to 5 The shape and size of the slot 120 are shown in FIG. 1 . Accordingly, the shape and size of the slot 120 may also vary with the size of the pressing block 200. In addition, the position and number of the slots 120 may be adjusted according to the actual application scenario. In order to improve the stability of the connection of the frame 100, the number of the slots 120 may be increased. Figure 6 and Figure 7 shown.

[0032] like Figure 1 As shown, the frame 100 further includes a mounting plate 130 and a bottom plate 140 located below the mounting plate 130 , and the side wall 110 is fixedly connected between the mounting plate 130 and the bottom plate 140 .

[0033] In some embodiments, at least one side of the pressing portion 220 is provided with a snap-fit ​​portion 221, and the side wall 110 of the frame 100 includes a snap-fit ​​portion 111 opposite to the snap-fit ​​portion 221. The snap-fit ​​portion 221 is snap-fitted to the snap-fit ​​portion 111 to prevent the pressing portion 220 from being separated from the groove portion 120. Figure 4 and Figure 5As shown, the clamping portion 221 includes a downward pressing surface 221a, and the pressing surface 221a is provided with at least one inverted tooth-shaped protrusion 221b. The slotted portion 120 is an opening 121, and the opening 121 passes through the side wall 110 of the frame 100. The clamping matching portion 111 is a plate-like structure opposite to the pressing surface 221a (hereinafter, for the convenience of explanation, the reference number of the plate-like structure is 111). The inverted tooth-shaped protrusion 221b acts on the plate-like structure 111, and the pressing force makes the inverted tooth-shaped protrusion 221b and the plate-like structure 111 contact and tightly bite. After the clamping portion 220 with the inverted tooth-shaped protrusion 221b passes through the slotted portion 120 of the frame 100, it can be stuck with the frame 100 and cannot be pulled out, so as to prevent the frame 100 from loosening. Even if the fastener 300 connecting the pressing block 200 and the purlin 10 is loose, the frame 100 can be prevented from falling directly to a certain extent by the connection between the inverted teeth of the pressing block 200 and the assembly frame 100. In another embodiment, the clamping portion 221 is a buckle, and the clamping matching portion is a slot.

[0034] In some embodiments, Figure 5 As shown, the inverted tooth-shaped protrusion 221b includes a first surface 221d and a second surface 221e, and the first surface 221d and the second surface 221e are connected to each other. The first surface 221d is inclined toward the mounting portion 210, and the second surface 221e is perpendicular to the pressing surface 221a, forming an inverted tooth shape, that is, the inclination direction of the first surface 221d is opposite to the direction in which the pressing portion 220 is inserted into the opening 121. Figure 5 In the figure, the first surface 221d of the inverted tooth-shaped protrusion 221b on the left side is inclined toward the right side, and the second surface 221e of the inverted tooth-shaped protrusion 221b on the right side is inclined toward the left side. The plate-like structure 111 includes an inner wall surface 113 opposite to the outer wall surface 112 of the side wall 110. When the clamping portion 220 is fully inserted into the opening 121, the inner wall surface 113 is stopped by the second surface 221e. The frame 100 needs to be displaced in the up-down direction and in the horizontal direction perpendicular to the up-down direction in order to fall off. The opening 121 can limit its movement in the up-down direction, and the inverted tooth-shaped protrusion 221b can limit its movement in the horizontal direction, which can effectively fix the position of the frame 100 and prevent the component from slipping due to the loosening of the pressing block 200.

[0035] In one embodiment, if Figure 1 and Figure 2 As shown, the frame 100 includes two side walls 110 arranged side by side, and the two side walls 110 are both located on one side of the frame 100. Figure 1In the embodiment, the two side walls 110 on the left are located on one side of the frame 100, and the two side walls 110 on the right are located on one side of the frame 100. Each side wall 110 is provided with openings 121 that are interconnected. There are at least two inverted tooth-shaped protrusions 221b, and each opening 121 cooperates with at least one inverted tooth-shaped protrusion 221b. The clamping portion 220 can pass through the two openings 121, and the inverted tooth-shaped protrusions 221b act on the two plate-like structures 111. The clamping force makes the inverted tooth-shaped protrusions 221b and the two plate-like structures 111 contact and tightly bite, which can further improve the stability of the connection of the frame 100.

[0036] In some embodiments, the pressing block 200 further includes two upwardly protruding limiting portions 230, each limiting portion 230 connecting the mounting portion 210 and the pressing portion 220. The two limiting portions 230 respectively provide stop surfaces 231 facing each other and facing the outside of the pressing block 200, and the outer wall surface 112 of the side wall 110 of the frame 100 is stopped by the stop surface 231 to limit the distance between two adjacent frames 100. The side wall 110 in contact with the stop surface 231 is the side wall 110 of the frame 100 located on the outside. Figure 1 In, that is, close to Figure 1 Two side walls 110 at the middle position.

[0037] The limiting parts 230 on both sides of the mounting part 210 can limit the position of the frame 100, and the outer wall surface 112 of the frame 100 on both sides is close to the stop surface 231 to ensure the spacing between the components. Figure 1 As shown, the distance between two adjacent frames 100 is the distance between the two stop surfaces 231 of the pressing block 200 .

[0038] When installing the pressing block 200, the pressing portion 220 needs to be inserted into the opening 121 of the frame 100 by force, and pressed in until the stop surface 231 is in close contact with the outer wall surface 112 of the frame 100, and finally the pressing block 200 and the purlin 10 are fastened with the fastener 300. The pressing block 200 is inserted into the opening 121, and the inverted tooth-shaped protrusion 221b on the pressing portion 220 clamps the frame 100, so that the frame 100 cannot move.

[0039] In some embodiments, the pressing surface 221a is provided with a recessed portion 221c for receiving the plate-like structure 111, and the second surface 221e of the inverted tooth-shaped protrusion 221b provides at least a portion of the recessed portion 221c. Figure 4 and Figure 5As shown, the concave portion 221c is formed by the stop surface 231 of the limiting portion 230 and the second surface 221e of the inverted tooth-shaped protrusion 221b. The pressing portion 220 is inserted into the opening 121 and pressed in until the stop surface 231 is in close contact with the outer wall surface 112 of the frame 100, the upper end of the plate-like structure 111 is located in the concave portion 221c, and the inner wall surface 113 of the plate-like structure 111 is stopped by the second surface 221e of the inverted tooth-shaped protrusion 221b.

[0040] In some embodiments, the longitudinal cross-sections of the limiting portion 230 and the mounting portion 210 are U-shaped, and the mounting portion 210 connects the lower ends of the two limiting portions 230. Figure 4 and Figure 5 As shown, the pressing block 200 is in an inverted Ω-shaped or inverted 'X'-shaped structure as a whole, the mounting portion 210 is sunken relative to the limiting portion 230 and the clamping portion 220, the distance between the pressing block 200 and the purlin 10 is smaller, and the required length of the fastener 300 is smaller, which can improve the stability of the connection between the pressing block 200 and the purlin 10.

[0041] In one embodiment, if Figure 4 As shown, the height of the side end of the pressing portion 220 is smaller than the height of the portion of the pressing portion 220 close to the mounting portion 210 , which has a guiding effect and helps the pressing portion 220 to be inserted into the opening 121 .

[0042] In some embodiments, the mounting portion 210 is provided with a mounting hole 211 extending vertically therethrough. The purlin 10 is provided with a connecting hole 11 corresponding to the mounting hole 211. Figure 1 , there is a gap d between the lower end of the mounting portion 210 and the purlin 10 in the vertical direction. The fastener 300 is fastened through the mounting hole 211, the gap d, and the connecting hole 11, so that the pressing block 200 presses the frame 100 and the purlin 10 from the slotted portion 120. The gap d provides a space for the pressing block 200 to press downward, and the pressing force of the frame can be greater through the force of the fastener 300 tightening downward.

[0043] In one embodiment, the mounting hole 211 and the connecting hole 11 are both round holes. The diameter of the round holes ranges from 7 to 12 mm. The fastener 300 includes a bolt 310 and a nut 320 for easy assembly and disassembly. Figures 1 to 3 As shown, bolts 310 and nuts 320 respectively press the pressing block 200 and the purlin 10 from above and below to press the two frames 100 onto the purlin 10, thereby achieving a stable connection between the frames 100. Preferably, the mounting hole 211 is located at the center of the mounting portion 210 in the length direction and the width direction.

[0044] In one embodiment, the specifications of the bolt 310 include M6-12, and the shapes of the head of the bolt 310 include hexagonal head, square head, round head and hexagon socket.

[0045] In one embodiment, the pressing portion 220 is in the form of a thin sheet. Figure 6 and Figure 7 As shown, the side wall 110 in the long side direction of the frame 100 is provided with an opening 121, which is a long thin hole, and the assembly frame 100 can be penetrated in the hole. The height of the pressing part 220 is consistent with the height of the opening 121, and the width of the pressing part 220 is consistent with the width of the opening 121. The higher degree of fit between the pressing part 220 and the opening 121 can make the two fit tightly, so as to provide a more stable and reliable connection, which helps to prevent the relative movement or looseness between the pressing block 200 and the frame 100. After the pressing part 220 is squeezed by the opening 121, the inverted tooth-shaped protrusion 221b at the bottom is tightly engaged with the frame 100, so that the pressing block 200 and the frame 100 cannot break away.

[0046] Although the utility model is disclosed as above with preferred embodiments, it is not intended to limit the utility model. Any person skilled in the art can make possible changes and modifications without departing from the spirit and scope of the utility model. Therefore, any modification, equivalent change and modification made to the above embodiments based on the technical essence of the utility model without departing from the content of the technical solution of the utility model shall fall within the protection scope defined by the claims of the utility model.

Claims

1. A photovoltaic mounting structure, comprising a frame of a photovoltaic module and a pressing block for pressing two adjacent frames onto a purlin of a photovoltaic support, The pressing block comprises a mounting portion for assembling with the purlin; The pressing block further comprises two pressing parts for connecting with the frame, and the two pressing parts are respectively arranged on opposite sides of the mounting part; It is characterized in that At least one side wall of each frame is provided with a slotted portion for accommodating the clamping portion, at least a portion of the clamping portion can be inserted into the slotted portion, and the mounting portion and the purlin are assembled to generate a clamping force that causes the clamping portion to act on the slotted portion.

2. The photovoltaic installation structure according to claim 1, characterized in that: The pressing portion on at least one side is provided with a snap-fitting portion, and the side wall of the frame includes a snap-fitting matching portion opposite to the snap-fitting portion; The clamping portion is clamped to the clamping fitting portion to prevent the pressing portion from being separated from the slotted portion.

3. The photovoltaic installation structure according to claim 2, characterized in that: The clamping portion comprises a downward pressing surface, and the pressing surface is provided with at least one inverted tooth-shaped protrusion; The slotted portion is an opening, the opening passes through the side wall of the frame, and the snap-fitting portion is a plate-shaped structure opposite to the pressing surface; The inverted tooth-shaped protrusion acts on the plate-like structure, and the pressing force causes the inverted tooth-shaped protrusion and the plate-like structure to contact and tightly bite.

4. The photovoltaic installation structure according to claim 3, characterized in that: The frame includes two side walls arranged side by side, and the two side walls are both located on one side of the frame; Each of the side walls is respectively provided with the openings that are interconnected; There are at least two inverted tooth-shaped protrusions; The clamping portion can pass through the two openings, and the inverted tooth-shaped protrusion acts on the two plate-like structures. The clamping force causes the inverted tooth-shaped protrusion to contact and tightly engage with the two plate-like structures.

5. The photovoltaic installation structure according to claim 3, characterized in that: The inverted tooth-shaped protrusion comprises a first surface and a second surface connected to each other, the first surface is inclined toward the mounting portion, and the second surface is perpendicular to the pressing surface; The plate-like structure includes an inner wall surface opposite to the outer wall surface of the side wall, and the inner wall surface is stopped by the second surface.

6. The photovoltaic installation structure according to claim 5, characterized in that: The pressing surface is provided with a recessed portion for receiving the plate-like structure, and the second surface of the inverted tooth-shaped protrusion provides at least a portion of the recessed portion.

7. The photovoltaic installation structure according to any one of claims 1 to 6, characterized in that: The pressing block further comprises two limiting portions protruding upward, each of the limiting portions connecting the mounting portion and the pressing portion; The two limiting parts respectively provide stop surfaces which are opposite to each other and face the outside of the pressing block, and the outer wall surface of the side wall of the frame is stopped by the stop surface to limit the distance between two adjacent frames.

8. The photovoltaic installation structure according to claim 7, characterized in that: The longitudinal cross-sections of the limiting portion and the mounting portion are U-shaped, and the mounting portion connects the lower ends of the two limiting portions.

9. The photovoltaic installation structure according to any one of claims 1 to 6, characterized in that: The mounting portion is provided with a mounting hole which passes through from top to bottom; The purlin is provided with a connection hole; There is a gap between the lower end of the mounting portion and the purlin in the up-down direction; The fastener is fastened through the mounting hole, the interval and the connecting hole, so that the pressing block presses the frame and the purlin from the slotted portion.

10. A photovoltaic support, comprising a purlin, characterized in that: Also includes a photovoltaic mounting structure as described in any one of claims 1-9; The purlin is located below the frame and the pressing block, and the pressing block is installed on the purlin, so that two adjacent frames are pressed tightly on the purlin.

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