Photovoltaic fixing device and photovoltaic system

Abstract

The utility model discloses a photovoltaic fixing device and a photovoltaic system, the photovoltaic fixing device comprises a limiting block, an adjusting block and a pressing block, and the limiting block is buckled on a cross beam; a supporting boss is formed on the limiting block, and a limiting protrusion is formed at at least one end of the limiting block. The adjusting block is installed on the limiting protrusion, a limiting groove is formed between the adjusting block and the supporting boss, and the limiting groove is used for containing a frame of the photovoltaic module. A set sliding distance is kept between the adjusting block and the frame; and the pressing block is opposite to the supporting boss, is fixedly connected with the cross beam, and is used for pressing the frame of the photovoltaic module. When bearing a high airborne load, the photovoltaic module can generate elastic deformation, and the frame can slide in the limiting groove due to the set sliding distance in the limiting groove, so that the stress deformation of the photovoltaic module is more uniform, the structure of the whole device is simpler, the bearing capacity of the photovoltaic module can be improved, and the installation cost of the photovoltaic module can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic components, in particular to a photovoltaic fixing device and a photovoltaic system. Background Art

[0002] At present, the existing installation method of photovoltaic modules is to fix the frame to the photovoltaic bracket with the help of aluminum blocks or bolts. However, when subjected to high air loads, the aluminum blocks will slip or break, and the bolts will directly cause tears around the mounting holes, resulting in the common installation method of existing photovoltaic modules being unable to meet the back load requirements in high wind load areas. Based on this problem, the measures taken by existing photovoltaic companies are to increase the thickness of the glass or frame of the photovoltaic module, or to increase the fastening points of the photovoltaic module, such as changing the conventional double beam to a three-beam, and changing the four-point installation to a six-point bolt or aluminum block installation method. However, these solutions have extremely limited effects on improving the load capacity of photovoltaic modules, and will instead lead to excessively high installation costs for photovoltaic modules. Therefore, how to significantly improve the load-bearing capacity of photovoltaic modules while controlling the installation cost is a technical problem that those skilled in the art need to solve. Utility Model Content

[0003] The purpose of the utility model is to provide a photovoltaic fixing device and a photovoltaic system, which solve the technical problems of high installation cost and low load-bearing capacity of existing photovoltaic components.

[0004] To achieve the above-mentioned purpose, the present invention provides a photovoltaic fixing device, comprising:

[0005] The limit block is buckled on the crossbeam; the limit block is formed with a supporting boss, and at least one end of the limit block is formed with a limit protrusion;

[0006] An adjustment block is mounted on the limiting protrusion, and a limiting groove is formed between the adjustment block and the supporting boss. The limiting groove is used to accommodate the frame of the photovoltaic module; a set sliding distance is maintained between the adjustment block and the frame;

[0007] The pressing block is opposite to the supporting boss and is fixedly connected to the crossbeam. The pressing block is used to press the frame of the photovoltaic module.

[0008] Preferably, the adjusting blocks include several groups, and the widths of all adjusting blocks gradually increase; all adjusting blocks are selectively detachably mounted on the limiting protrusions until a set sliding distance is maintained between the adjusting blocks and the frame.

[0009] Preferably, each group of adjustment blocks is formed with a clamping groove, which cooperates with the limiting protrusion; the clamping groove and the limiting protrusion are both dovetail-shaped structures.

[0010] Preferably, an inner side wall of the clamping groove is obliquely provided with an abutment protrusion, and the abutment protrusion abuts against the outer side surface of the limiting protrusion.

[0011] Preferably, a buckling groove is formed at the bottom of the limiting groove, and the buckling groove is buckled with the crossbeam.

[0012] Preferably, it also includes:

[0013] A baffle, the baffle abuts against a side of the beam away from the limit block;

[0014] A U-shaped bolt is arranged across the crossbeam; one end of the U-shaped bolt passes through the pressure block and the limit block in sequence, and the other end passes through the baffle;

[0015] Two nuts are respectively connected to the two connecting rods of the U-bolt and are against the baffle.

[0016] Preferably, a flat washer is provided between the nut and the baffle, and an elastic washer is provided between the flat washer and the nut.

[0017] Preferably, the pressure block includes a top pressure plate, and a lower pressure eaves is integrally formed on at least one side of the top pressure plate; the side surface of the pressure block is against the B surface of the frame, and the lower pressure eaves is pressed against the A surface of the frame; the width of the lower pressure eaves is equal to the width of the A surface of the frame.

[0018] Preferably, the pressing block further includes a bottom side plate, which is opposite to the top pressing plate; a T-shaped block is formed on one side of the bottom side plate, which is against the crossbeam; the lower pressure eaves and the T-shaped block are respectively arranged on two opposite sides of the pressing block.

[0019] The utility model also provides a photovoltaic system, comprising a photovoltaic support, at least two photovoltaic modules and the above-mentioned photovoltaic fixing device, wherein the photovoltaic fixing device is used to fix all the photovoltaic modules to the crossbeams of the photovoltaic support.

[0020] Compared with the background technology, the utility model optimizes the structure of the photovoltaic fixing device, adds a limit block and several groups of adjustment blocks, the limit block is formed with a supporting boss, at least one end of the limit block is formed with a limit protrusion, the adjustment block is installed on the limit protrusion, so that a limit groove is formed between the adjustment block and the supporting boss; all the adjustment blocks can be detachably installed on the limit protrusion.

[0021] When installing the photovoltaic module, first buckle the limit block on the beam and install the adjustment block on the limit protrusion, then place the frame of the photovoltaic module in the limit groove, ensure that the set sliding distance is maintained between the adjustment block and the frame, and finally, when the pressure block is aligned with the support boss, firmly connect the pressure block and the beam to ensure that the pressure block can press the frame of the photovoltaic module.

[0022] When bearing high load, the photovoltaic module will be elastically deformed, and the frame will slide in the limiting groove with a set sliding distance, and the sliding of the frame is limited by the adjusting block after the sliding, so that the load borne by the photovoltaic module is transferred along the sliding direction, thereby making the stress deformation of the photovoltaic module more uniform, the structure of the whole device is relatively simple, the load bearing capacity of the photovoltaic module can be improved, and the installation cost of the photovoltaic module can be reduced. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments or the prior art description will be briefly introduced as follows. Obviously, the drawings in the following description are only embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of the provided drawings.

[0024] Figure 1 A state diagram of the photovoltaic fixing device provided by the embodiments of the present application when fixing the photovoltaic module;

[0025] Figure 2 For Figure 1 A-A sectional view in the middle;

[0026] Figure 3 For Figure 1 Front view of the main part;

[0027] Figure 4 For Figure 3 B, the local enlarged view of the middle part;

[0028] Figure 5 For Figure 4 Axonometric view of the main part;

[0029] Figure 6 For Figure 5 Another view of the main part;

[0030] Figure 7 For Figure 3 C, the local enlarged view of the middle part;

[0031] Figure 8 For Figure 7 Axonometric view of the main part;

[0032] Figure 9 For Figure 4 Exploded view of the limiting block and the adjusting block in the middle part;

[0033] Figure 10 For Figure 3 Structure diagram of the adjusting block in the middle part.

[0034] The following are the reference signs:

[0035] Limit block 11, adjustment block 12, pressure block 13, baffle 14, U-bolt 15, nut 16, flat washer 17 and elastic washer 18;

[0036] Support boss 111, limiting protrusion 112, limiting groove 113 and snap-fit ​​groove 114;

[0037] The engaging groove 121 and the abutting protrusion 122;

[0038] Top pressure plate 131, lower pressure eaves 132, bottom side plates 133 and T-blocks 134;

[0039] Beam 2 and photovoltaic module 3;

[0040] Border 31;

[0041] A side 311 and B side 312; DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0043] In order to enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0044] The embodiment of the utility model discloses a photovoltaic fixing device, as shown in the attached Figure 1 and 3 As shown, it includes a limit block 11, an adjustment block 12 and a pressure block 13. The limit block 11 is buckled on the beam 2. The limit block 11 is formed with a support boss 111. At least one side of the limit block 11 is formed with a limit protrusion 112. The limit protrusion 112 and the support protrusion 111 are both set higher than the limit block 11. The adjustment block 12 is installed on the limit protrusion 112. A limit groove 113 is formed between the adjustment block 12 and the support protrusion 111. The limit groove 113 is used to accommodate the frame 31 of the photovoltaic module 3. The width of the limit groove 113 is greater than the width of the frame 31. A set sliding distance is maintained between the adjustment block 12 and the frame 31, providing space for the frame 31 to slide horizontally. The pressure block 13 is opposite to the support boss 111. The pressure block 13 is fixedly connected to the beam 2 and is used to press the frame 31 of the photovoltaic module 3.

[0045] When installing the photovoltaic module 3, first buckle the limit block 11 on the beam 2, and install the adjustment block 12 on the limit protrusion 112, then place the frame 31 of the photovoltaic module 3 in the limit groove 113, ensure that the set sliding distance is maintained between the adjustment block 12 and the frame 31, and finally, when the pressure block 13 is aligned with the support boss 111, fix the pressure block 13 and the beam 2 to ensure that the pressure block 13 can press the frame 31 of the photovoltaic module 3.

[0046] When subjected to high loads, the photovoltaic module 3 will undergo elastic deformation. Since the limiting groove 113 has a set sliding distance, its frame 31 will slide in the limiting groove 113 accordingly, and the adjustment block 12 is used to limit the sliding of the frame 31 after sliding, so that the load carried by the photovoltaic module 3 is transferred along the sliding direction, thereby making the force deformation of the photovoltaic module 3 more uniform. The structure of the entire device is relatively simple, which can not only improve the carrying capacity of the photovoltaic module 3, but also reduce the installation cost of the photovoltaic module 3.

[0047] The adjustment block 12 includes several groups, and the width of all the adjustment blocks 12 gradually increases; Figure 9 As shown, all the adjustment blocks 12 can be selectively removably installed on the limiting protrusion 112 until a set sliding distance is maintained between the adjustment block 12 and the frame 31. In this way, the specifications of the adjustment block 12 can be adjusted according to the specifications of the frame 31 to ensure that the set sliding distance is always maintained between the adjustment block 12 and the frame 31. The set sliding distance refers to the optimal sliding distance along the horizontal direction when the photovoltaic component 3 undergoes elastic deformation, ensuring that the set sliding distance changes with the change of the frame 31. By replacing the adjustment block 12, the entire device can be adapted to photovoltaic components 3 of different types, and the adaptability is improved.

[0048] As attached Figure 9 and 10 As shown, each set of adjustment blocks 12 is formed with a snap-fit ​​groove 121, which cooperates with the limiting protrusion 112 to facilitate the removal of the adjustment block 12. Of course, bolts or pins can also be used between the adjustment block 12 and the limiting protrusion 112 for positioning and constraint. The snap-fit ​​groove 121 and the limiting protrusion 112 are both dovetail-shaped structures, that is, the snap-fit ​​groove 121 is a dovetail-shaped groove, and the limiting protrusion 112 is a dovetail-shaped protrusion. This dovetail-shaped structure can limit the adjustment block 12 from detaching from the limiting protrusion 112 along the thickness direction of the photovoltaic module 3. By increasing the constraint between the adjustment block 12 and the limiting protrusion 112, the adjustment block 12 can only be pulled and installed in a direction parallel to the photovoltaic module 3, reducing the risk of the adjustment block 12 accidentally detaching from the limiting protrusion 112 due to the impact of the lateral load of the frame 31, ensuring the reliable installation of the adjustment block 12, and improving the reliability of the entire device. Of course, the structures of the engaging groove 121 and the limiting protrusion 112 are not limited to the dovetail type, and may also be T-shaped, for example.

[0049] As attached Figure 10As shown, the inner side wall of the engaging groove 121 is inclined to be provided with an abutting protrusion 122, which abuts against the outer side surface of the limiting protrusion 112, so that the abutting protrusion 122 and the limiting protrusion 112 are interference-connected, thereby increasing the constraint between the adjusting block 12 and the limiting protrusion 112, improving the connection strength between the adjusting block 12 and the limiting protrusion 112, and preventing the adjusting block 12 from separating from the limiting protrusion 112, thereby further improving reliability. Of course, the abutting protrusion 122 can also be provided on the surface of the limiting protrusion 112, which is not specifically limited here.

[0050] As attached Figure 9 As shown, a snap-fit ​​groove 114 is formed at the bottom of the limiting groove 113, and the snap-fit ​​groove 114 is snap-fitted with the beam 2. On the one hand, the setting of the snap-fit ​​groove 114 can limit the position of the limiting block 11 on the beam 2, which is conducive to the rapid disassembly and assembly of the limiting block 11, and prevents the limiting block 11 from being unstable and tilting relative to the beam 2; on the other hand, the setting of the snap-fit ​​groove 114 can also enable the beam 2 and the limiting block 11 to jointly support the photovoltaic component 3, and prevent the limiting block 11 from being deformed and damaged due to bearing alone, which is conducive to extending the service life of the limiting block 11.

[0051] As attached Figure 9 As shown, as a preferred embodiment, the limit block 11 includes two limit plates. The two limit plates are parallel to the crossbeam 2 and are respectively located on either side of the crossbeam 2. A locking groove 114 is formed between the two limit plates. A support boss 111 is vertically connected between the two limit plates. A limit protrusion 112 is formed on at least one end of each limit plate.

[0052] As attached Figure 2 As shown, the photovoltaic fixing device also includes a baffle 14, a U-bolt 15, and two nuts 16. The U-bolt 15 is arranged across the beam 2, that is, the U-bolt 15 includes two parallel connecting rods, and the two connecting rods are respectively distributed on two opposite sides of the beam 2. One end of the U-bolt 15 passes through the pressure block 13 and the limit block 11 in sequence, and its other end passes through the baffle 14. The two nuts 16 are respectively connected to the two connecting rods of the U-bolt 15 until the two nuts 16 abut against the baffle 14, so that the baffle 14 abuts against the side of the beam 2 away from the limit block 11, thereby allowing the entire device to be detachably fixed to the beam 2. The structure is relatively simple, which can not only improve the load-bearing capacity of the entire device, but also reduce installation costs.

[0053] As attached Figure 2 As shown, a flat washer 17 is provided between the nut 16 and the baffle 14 to reduce friction and prevent the nut 16 from coming loose. An elastic washer 18 is provided between the flat washer 17 and the nut 16 to prevent the nut 16 from coming loose.

[0054] As attached Figure 4 and 7As shown, the pressing block 13 comprises a top pressing plate 131, at least one side of the top pressing plate 131 is integrally formed with a lower pressing eave 132, the lower pressing eave 132 abuts against the frame 31. As a preferred embodiment, the side of the pressing block 13 abuts against the B face 312 of the frame 31, and the lower pressing eave 132 is arranged on the A face 311 of the frame 31; the width of the lower pressing eave 132 is equal to the width of the A face 311 of the frame 31, so that the lower pressing eave 132 can tightly press the frame 31, and the photovoltaic module 3 is fixed reliably. The pressing block 13 further comprises a bottom side plate 133 opposite to the top pressing plate 131; one side of the bottom side plate 133 is formed with a T-shaped block 134, the lower pressing eave 132 and the T-shaped block 134 are arranged on the two opposite sides of the pressing block 13 respectively, the T-shaped block 134 abuts against the cross beam 2, the contact area between the pressing block 13 and the cross beam 2 is increased, and the strength and rigidity of the pressing block 13 are improved, so that the photovoltaic module 3 is fixed more firmly.

[0055] Considering that the fixing position of the photovoltaic fixing device is different, the photovoltaic fixing device is used for fixing between two adjacent photovoltaic modules 3, and / or is used for fixing on one side of the photovoltaic module 3.

[0056] As shown in FIG. 1 and FIG. 2, Figures 4 to 6 As a preferred embodiment, when the photovoltaic fixing device is fixed between two photovoltaic modules 3, each end of the limiting block 11 is formed with a limiting protrusion 112, at this time, the supporting boss 111 is arranged on the middle of the limiting block 11, and the two limiting protrusions 112 are arranged on the two sides of the supporting boss 111. The two opposite sides of the top pressing plate 131 of the pressing block 13 are each formed with a lower pressing eave 132, and the two lower pressing eaves 132 abut against the frames 31 of the two adjacent photovoltaic modules 3, and tightly press the two photovoltaic modules. The pressing block 13 is not provided with the T-shaped block 134, and does not contact the cross beam 2.

[0057] As shown in FIG. 1 and FIG. 2, Figure 7 and 8 As another preferred embodiment, when the photovoltaic fixing device is fixed on one side of the photovoltaic module 3, only one end of the limiting block 11 is formed with a limiting protrusion 112. The top pressing plate 131 of the pressing block 13 is only formed with a lower pressing eave 132 on one side of the photovoltaic module 3, and the bottom side plate 133 is formed with a T-shaped block 134 away from one side of the photovoltaic module 3.

[0058] The embodiment of the utility model discloses a photovoltaic system further, including photovoltaic support, at least two photovoltaic module 3 and above-mentioned photovoltaic fixing device, photovoltaic fixing device is used for fixing all photovoltaic module 3 to the cross beam 2 of photovoltaic support, has same beneficial effect.

[0059] It should be noted that, in the present specification, the relationship terms such as first and second are only used to distinguish one entity from another entity, and do not necessarily require or imply any such actual relationship or order between the entities.

[0060] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only intended to help understand the method and core concept of the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from the principles of the present invention, and such improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A photovoltaic fixing device, characterized in that: include: A limit block (11), the limit block (11) being buckled on the crossbeam (2); the limit block (11) being formed with a supporting boss (111), and at least one end of the limit block (11) being formed with a limit protrusion (112); An adjusting block (12), the adjusting block (12) being mounted on the limiting protrusion (112), a limiting groove (113) being formed between the adjusting block (12) and the supporting boss (111), the limiting groove (113) being used to accommodate the frame (31) of the photovoltaic module (3); a set sliding distance is maintained between the adjusting block (12) and the frame (31); A pressing block (13), the pressing block (13) is opposite to the supporting boss (111) and is fixedly connected to the crossbeam (2), and the pressing block (13) is used to press the frame (31) of the photovoltaic module (3).

2. The photovoltaic fixing device according to claim 1, characterized in that: The adjustment blocks (12) include several groups, and the widths of all the adjustment blocks (12) gradually increase; all the adjustment blocks (12) are selectively detachably mounted on the limiting protrusion (112) until the set sliding distance is maintained between the adjustment blocks (12) and the frame (31).

3. The photovoltaic fixing device according to claim 2, characterized in that: Each group of the adjustment blocks (12) is formed with a clamping groove (121), and the clamping groove (121) cooperates with the limiting protrusion (112); the clamping groove (121) and the limiting protrusion (112) are both dovetail-shaped structures.

4. The photovoltaic fixing device according to claim 3, characterized in that: An abutment protrusion (122) is provided on the inner side wall of the clamping groove (121) at an angle, and the abutment protrusion (122) abuts against the outer side surface of the limiting protrusion (112).

5. The photovoltaic fixing device according to any one of claims 1 to 4, characterized in that: A buckling groove (114) is formed at the bottom of the limiting groove (113), and the buckling groove (114) is buckled with the crossbeam (2).

6. The photovoltaic fixing device according to any one of claims 1 to 4, characterized in that: Also includes: a baffle (14), the baffle (14) abutting against a side of the crossbeam (2) away from the limiting block (11); A U-shaped bolt (15), the U-shaped bolt (15) being arranged across the crossbeam (2); one end of the U-shaped bolt (15) passing through the pressing block (13) and the limiting block (11) in sequence, and the other end of the U-shaped bolt (15) passing through the baffle (14); Two nuts (16), the two nuts (16) are respectively connected to the two connecting rods of the U-shaped bolt (15) and abut against the baffle (14).

7. The photovoltaic fixing device according to claim 6, characterized in that: A flat washer (17) is provided between the nut (16) and the baffle (14), and an elastic washer (18) is provided between the flat washer (17) and the nut (16).

8. The photovoltaic fixing device according to any one of claims 1 to 4, characterized in that: The pressing block (13) includes a top pressing plate (131), and at least one side of the top pressing plate (131) is integrally formed with a lower pressing eave (132); the side surface of the pressing block (13) abuts against the B surface (312) of the frame (31), and the lower pressing eave (132) is pressed against the A surface (311) of the frame (31); the width of the lower pressing eave (132) is equal to the width of the A surface (311) of the frame (31).

9. The photovoltaic fixing device according to claim 8, characterized in that: The pressing block (13) further includes a bottom side plate (133), the bottom side plate (133) being opposite to the top pressing plate (131); a T-shaped block (134) is formed on one side of the bottom side plate (133), the T-shaped block (134) being against the crossbeam (2); the lower pressure eaves (132) and the T-shaped block (134) are respectively arranged on two opposite sides of the pressing block (13).

10. A photovoltaic system, characterized in that: It comprises a photovoltaic support, at least two photovoltaic modules (3) and the photovoltaic fixing device according to any one of claims 1 to 9, wherein the photovoltaic fixing device is used to fix all the photovoltaic modules (3) to the crossbeam (2) of the photovoltaic support.

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