Pressing block and photovoltaic system

Abstract

The utility model discloses a pressing block and a photovoltaic system. The pressing block comprises a connecting part; one side, along the first direction, of the press-fit part is connected with the connecting part, the other side, along the first direction, of the press-fit part extends towards a frame in the photovoltaic module, the press-fit part comprises a first top surface and a press-fit surface which are oppositely arranged along a second direction, the first top surface is a plane, an inclined surface or an arc surface, and the second direction is perpendicular to the first direction; and the at least one hook part is arranged at one end, far away from or close to the connecting part, of the pressing surface in the first direction, the hook part is provided with a hook surface, and the hook surface intersects with the pressing surface. In the embodiment of the utility model, when the photovoltaic assembly is subjected to negative pressure, the photovoltaic assembly is not easy to fall off from the pressing block under the pressing action of the pressing part and the limiting action of the hook part, so that the negative pressure bearing capacity is improved, the effect of preventing the photovoltaic assembly from falling off is improved, and the pressing block can be used in a scene with higher wind load.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaics, in particular to a pressing block and a photovoltaic system. Background Art

[0002] When installing a photovoltaic module, the frame of the photovoltaic module is usually fixed to the bracket by a pressing block.

[0003] The frames of photovoltaic modules include steel frames, aluminum alloy frames, etc. The steel frames are divided into open steel frames and closed steel frames according to the closure form of the cavity.

[0004] However, due to the smooth surface and poor torsional resistance of the open steel frame, when the photovoltaic module including the open steel frame is installed on the bracket through conventional pressing blocks, the negative pressure bearing capacity is low and it cannot be used in scenarios with higher wind loads. Utility Model Content

[0005] The utility model provides a pressing block and a photovoltaic system, aiming to at least solve the technical problem in the prior art that when a photovoltaic assembly including an open steel frame is installed on a bracket by using a conventional pressing block, the negative pressure bearing capacity is low and it cannot be used in a scene with a high wind load.

[0006] In a first aspect, an embodiment of the utility model provides a pressing block, comprising:

[0007] Connecting part;

[0008] At least one pressing portion, wherein one side of the pressing portion along the first direction is connected to the connecting portion, and the other side of the pressing portion along the first direction extends toward the frame in the photovoltaic module, and the pressing portion comprises a first top surface and a pressing surface which are arranged opposite to each other along the second direction, wherein the first top surface is a plane, an inclined surface or an arc surface, and the second direction is perpendicular to the first direction;

[0009] At least one hook portion, the hook portion is arranged at one end of the pressing surface along the first direction away from or close to the connecting portion, the hook portion has a hook surface, and the hook surface intersects with the pressing surface.

[0010] Optionally, the first top surface is an inclined surface or a curved surface, and an end of the first top surface close to the connecting portion is higher than an end of the first top surface away from the connecting portion.

[0011] Optionally, the hook portion is arranged at an end of the pressing surface away from the connecting portion along the first direction, and the hook portion protrudes from the pressing surface along the second direction.

[0012] Optionally, from the direction pointing from the connecting portion to the pressing portion, the thickness of the pressing portion along the second direction gradually decreases.

[0013] Optionally, an avoidance groove is provided at the connection between the pressing surface and the hook portion.

[0014] Optionally, the connecting portion is connected to the pressing portion via an inclined plate portion, and the inclined plate portion is arranged at an angle to the pressing surface;

[0015] The connecting portion is further connected to a pressing plate portion, the pressing plate portion is located at least on one side of the pressing portion along the second direction, and the pressing plate portion includes a top pressing surface close to the pressing portion along the second direction.

[0016] Optionally, the pressing portion further includes an inclined surface connected to the pressing surface, and an end of the inclined surface away from the pressing surface is higher than an end of the inclined surface close to the pressing surface.

[0017] Optionally, a mounting hole is formed on the connecting portion, and a limiting strip is provided on the connecting portion, wherein the limiting strip is located on at least one side of the mounting hole along the first direction.

[0018] Optionally, along the second direction, a slot is provided at one end of the connecting portion close to the pressing portion, and an extending direction of the slot is perpendicular to the first direction;

[0019] Along the third direction, the extending length of the card slot is less than the length of the connecting portion, and the third direction is perpendicular to the first direction and perpendicular to the second direction.

[0020] In a second aspect, an embodiment of the utility model provides a photovoltaic system, comprising a photovoltaic component, a bracket and a pressing block as described in any one of the above items, wherein the photovoltaic component comprises a frame, and the pressing block is used to fix the frame on the bracket.

[0021] Optionally, the frame includes a bottom plate in contact with the bracket and a side plate connected to the bottom plate, a side groove is provided on one side of the bottom plate close to the side plate along the first direction, the opening of the side groove faces the side plate, and the extension direction of the side groove is consistent with the extension direction of the pressing block;

[0022] The depth of the side groove along the second direction is less than or equal to the thickness of the bottom plate.

[0023] Optionally, the bottom plate includes a lower plate portion and an upper folding portion arranged relatively to each other along the second direction, and along the first direction, a distance between the upper folding portion and an end of the side plate close to the bottom plate is greater than zero, and a groove is formed between an end of the upper folding portion close to the side plate and an end of the side plate close to the bottom plate, and the hook cooperates with the side groove or the groove.

[0024] Optionally, the frame is connected to an anti-slip component, the anti-slip component protrudes from the bottom plate of the frame toward the bracket along the second direction, and the anti-slip component is located on one side of the bracket along the third direction.

[0025] In the embodiment of the utility model, the pressing part presses the frame in the photovoltaic module, and at the same time, the hook surface in the hook part cooperates with the frame to achieve the limitation in the first direction. When the photovoltaic module is subjected to negative pressure, under the pressing action of the pressing part and the limiting action of the hook part, the photovoltaic module is not easy to fall off from the pressing block, thereby improving the negative pressure bearing capacity and the effect of preventing the photovoltaic module from falling off, so that the pressing block can be used in scenes with higher wind loads. In addition, when the first top surface is an inclined surface or a convex arc surface, the surface stress of the pressing block can be more balanced when the photovoltaic module is subjected to negative pressure, and under the condition of equal performance, the material used for the pressing block is saved, and the weight of the pressing block and the space occupied by the pressing block are reduced.

[0026] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A schematic diagram of the structure of a pressing block provided in Embodiment 1 of the present utility model;

[0028] Figure 2 A schematic diagram of the three-dimensional structure of a pressing block provided in the first embodiment of the utility model;

[0029] Figure 3 A schematic diagram of the cooperation between the pressing block provided in the first embodiment of the utility model and the frame and bracket in the photovoltaic module;

[0030] Figure 4 A schematic diagram of the structure of a pressing block provided in the second embodiment of the utility model;

[0031] Figure 5 A schematic diagram of the structure of a pressing block provided in Embodiment 3 of the present utility model;

[0032] Figure 6 A schematic diagram of the structure of a pressing block provided in the fourth embodiment of the utility model;

[0033] Figure 7 A schematic diagram of the cooperation between the pressing block provided in the fourth embodiment of the utility model and the frame and bracket in the photovoltaic module;

[0034] Figure 8 A schematic diagram of the cooperation between the pressing block provided in the fifth embodiment of the utility model and the frame and bracket in the photovoltaic module;

[0035] Fig. 9 A schematic diagram of the structure of a pressing block provided in Embodiment 6 of the present utility model;

[0036] Fig.10 A schematic diagram of the cooperation between the pressing block provided in the sixth embodiment of the utility model and the frame and bracket in the photovoltaic module;

[0037] Fig.11 A schematic diagram of the cooperation between the pressing block and the frame in the photovoltaic module provided in the seventh embodiment of the utility model;

[0038] Fig.12 A schematic diagram of the structure of a pressing block provided in Embodiment 8 of the present utility model;

[0039] Fig.13 A schematic diagram of the cooperation between the pressing block and the frame in the photovoltaic module provided in the eighth embodiment of the utility model;

[0040] Fig.14 A schematic diagram of the structure of a photovoltaic system provided by an embodiment of the utility model;

[0041] Fig.15 A schematic structural diagram of another photovoltaic system provided in an embodiment of the utility model.

[0042] Reference numerals:

[0043] 1-pressing block, 11-pressing portion, 111-pressing surface, 112-first top surface, 113-inclined surface, 12-hook portion, 121-hook surface, 13-connecting portion, 131-mounting hole, 132-card slot, 14-avoidance slot, 15-inclined plate portion, 16-pressing plate portion, 161-second top surface, 162-top pressing surface, 17-limiting strip, 18-groove, 2-frame, 21-bottom plate, 211-side groove, 212-lower plate portion, 213-upward folding portion, 22-folded side wall, 23-top plate, 24-side plate, 25-groove portion, 3-bracket, 31-purlin, 311-side opening, 4-fastener, 5-anti-slip member, 6-clamping member, 7-matching member. DETAILED DESCRIPTION

[0044] The exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0045] First, refer to Figures 1 to 3The embodiment of the utility model discloses a pressing block 1, comprising: a connecting portion 13; at least one pressing portion 11, the pressing portion 11 is connected to the connecting portion 13 on one side along a first direction, and the pressing portion 11 extends toward the frame 2 in the photovoltaic module on the other side along the first direction, and the pressing portion 11 comprises a first top surface 112 and a pressing surface 111 arranged opposite to each other along a second direction, the first top surface 112 is a plane, an inclined surface or an arc surface, and the second direction is perpendicular to the first direction; at least one hook portion 12, the hook portion 12 is arranged on one end of the pressing surface 111 away from or close to the connecting portion 13 along the first direction, and the hook portion 12 has a hook surface 121, and the hook surface 121 intersects with the pressing surface 111.

[0046] Specifically, the pressing block 1 is used to fix the frame 2 of the photovoltaic module on the bracket 3. The frame 2 can be a steel frame, specifically an open steel frame. The cross-sectional shape of the open steel frame can be "S"-shaped, "3"-shaped, "5"-shaped, etc. The material of the pressing block 1 can be steel, aluminum alloy, etc. The material of the pressing block 1 is preferably aluminum alloy.

[0047] The pressing block 1 may include two pressing parts 11 and two hook parts 12. When the pressing block 1 includes two pressing parts 11, the connecting part 13 may be located between the two pressing parts 11. In the photovoltaic system, the pressing block 1 including the two pressing parts 11 is located between two adjacent photovoltaic modules. In this case, the pressing block 1 is used to fix two adjacent frames 2 on the bracket 3. Fig.12 The pressing block 1 may further include a pressing portion 11 and a hook portion 12. Fig.13 In a photovoltaic system, a pressing block 1 including a pressing portion 11 is located outside an edge of a photovoltaic module.

[0048] The connecting portion 13 is used for detachable connection with the bracket 3. The pressing portion 11 and the connecting portion 13 can be integrally formed. The pressing block 1 can be integrally formed by extrusion molding. The bracket 3 includes a purlin 31, and the cross-sectional shape of the purlin 31 can be C-shaped, Z-shaped, rectangular, etc. The connecting portion 13 is used for detachable connection with the purlin 31, and the connection method of the connecting portion 13 and the purlin 31 can be snap-fit, threaded, etc. Through the setting of the connecting portion 13, the connection between the pressing block 1 and the bracket 3 can be achieved, so that the pressing block 1 fixes the frame 2 on the bracket 3. And when the connecting portion 13 is detachably connected to the bracket 3, it is convenient to disassemble the photovoltaic module.

[0049] The pressing part 11 may be a plate-shaped structure with uniform thickness or a plate-shaped structure with non-uniform thickness. The first direction is specifically the width direction of the pressing block 1. Figure 3 , Figure 7 , Fig.11 The second direction is specifically the height direction of the pressing block 1. The second direction can be referred to as Figure 1The direction indicated by the arrow B in FIG. The pressing surface 111 is used to press the bottom plate 21 in the frame 2 of the photovoltaic module. The pressing surface 111 is horizontally arranged, and the pressing surface 111 is a plane that can contact the bottom plate 21. The frame 2 includes a bottom plate 21 that contacts the bracket 3. Along the first direction, the width of the pressing surface 111 can be determined according to the width of the bottom plate 21. The width of the pressing surface 111 can be less than or equal to the width of the bottom plate 21. One pressing portion 11 can be used to press the bottom plate in one frame 2.

[0050] The first top surface 112 is preferably an inclined surface or a convex curved surface. When the first top surface 112 is an inclined surface or a convex curved surface, the surface stress of the pressing block 1 can be more balanced when the photovoltaic module is subjected to negative pressure, and the material used for the pressing block 1 is saved under the same performance, and the weight of the pressing block 1 and the space occupied by the pressing block 1 are reduced.

[0051] The hook portion 12 is preferably arranged vertically. The hook surface 121 is preferably perpendicular to the pressing surface 111. The frame 2 also includes a folded side wall 22, which is arranged vertically. The hook surface 121 is used to cooperate with the folded side wall 22 in the frame 2 to achieve the first direction of limitation. When the pressing block 1 fixes the frame 2 on the bracket 3, along the first direction, the hook surface 121 can contact the folded side wall 22, and there can also be a gap between the hook surface 121 and the folded side wall 22. Figure 3 and Fig.10 , the bottom plate 21 can be bent 180 degrees to form a double-layer plate. At this time, the bottom plate 21 includes an upper folding portion 213 and a lower plate portion 212. The frame 2 also includes a side plate 24. The folded side wall 22 can be a side wall on the upper folding portion 213 close to the side plate 24. Along the first direction, the distance between the folded side wall 22 and the side plate 24 is greater than zero. Fig.11 The frame 2 also includes a bending plate connected to the bottom plate 21, the bending plate is perpendicular to the bottom plate 21, and the folded side wall 22 can be a side wall on the bending plate close to the side plate 24.

[0052] In the embodiment of the utility model, the pressing portion 11 presses the bottom plate 21 in the frame 2 of the photovoltaic component. At the same time, the hook surface 121 in the hook portion 12 cooperates with the folded side wall 22 in the frame 2 to achieve limitation in the first direction. When the photovoltaic component is subjected to negative pressure, under the pressing action of the pressing portion 11 and the limiting action of the hook portion 12, the photovoltaic component is not easy to fall off from the pressing block, thereby improving the negative pressure bearing capacity and the effect of preventing the photovoltaic component from falling off, so that the pressing block 1 can be used in scenarios with higher wind loads.

[0053] In a preferred embodiment of the present invention, referring to Figure 1 , Figure 2 , Figures 4 to 6 , Fig.11The first top surface 112 is an inclined surface or a curved surface, and an end of the first top surface 112 close to the connecting portion 13 is higher than an end of the first top surface 112 away from the connecting portion 13 .

[0054] When the first top surface 112 is a convex arc surface, the surface stress of the pressing block 1 can be more balanced when the photovoltaic module is subjected to negative pressure. In addition, the end of the first top surface 112 away from the connecting portion 13 is lower than the end of the first top surface 112 close to the connecting portion 13, thereby facilitating the pressing portion 11 to extend into the frame 2 and avoiding interference between the pressing portion 11 and the frame 2.

[0055] In an optional embodiment of the present invention, referring to Figure 1 , Figure 2 , Figures 4 to 6 , Fig. 9 The hook portion 12 is disposed at one end of the pressing surface 111 away from the connecting portion 13 along the first direction, and the hook portion 12 protrudes from the pressing surface 111 along the second direction.

[0056] Specifically, the pressing part 11 and the hook part 12 can be integrally formed or can be a separate structure. When the pressing part 11 and the hook part 12 are a separate structure, the hook part 12 can be fastened to the pressing part 11 by welding, threading or other fastening methods.

[0057] When the bottom plate 21 includes an upper folded portion 213 and a lower plate portion 212, the folded side wall 22 is a side wall on the upper folded portion 213 close to the side plate 24, and there is a gap between the folded side wall 22 and the side plate 24, and the hook portion 12 protruding from the pressed surface 111 is used to extend into the gap. The cross-sectional shape of the hook portion 12 can be rectangular, trapezoidal, triangular, etc., and the cross-sectional shape of the hook portion 12 is preferably rectangular.

[0058] The height of the hook portion 12 protruding from the pressing surface 111 is less than or equal to the thickness of the upper folding portion 213. Along the first direction, the width of the hook portion 12 is determined according to the value of the gap between the folded side wall 22 and the side plate 24. The width of the hook portion 12 is preferably less than the value of the gap between the folded side wall 22 and the side plate 24. In the embodiment of the utility model, when the hook portion 12 protrudes from the pressing surface 111, it is convenient for the hook portion 12 to extend into the gap between the folded side wall 22 and the side plate 24.

[0059] In another optional embodiment of the present invention, referring to Fig.11 The pressing block 1 is provided with a groove 18, the hook portion 12 is a side wall of the groove 18, and the hook portion 12 is located on a side of the pressing surface 111 close to the connecting portion 13 along the first direction. The frame 2 also includes a bending plate connected to the bottom plate 21, and the folded side wall 22 is a side wall of the bending plate close to the side plate 24.

[0060] In a preferred embodiment of the present invention, referring to Figure 1 , Figure 2 , Figure 5 and Figure 6 , from the direction pointing from the connecting portion 13 to the pressing portion 11, the thickness of the pressing portion 11 along the second direction gradually decreases.

[0061] Specifically, when the first top surface 112 of the pressing part 11 is a top surface or a curved surface, and the bottom of the pressing part 11 is a plane, the thickness of the pressing part 11 gradually decreases. By setting the thickness of the pressing part 11 to gradually decrease, the material used in the pressing block 1 is saved under the condition of equal performance, and the weight of the pressing block 1 and the space occupied by the pressing block 1 are reduced.

[0062] It should be noted that the pre-tightening force of the frame 2 on the pressing block 1 or the bending moment in the horizontal direction caused by the negative pressure of the photovoltaic module caused by the wind load is proportional to the length of the pressing part 11 along the third direction. Therefore, the thickness change of the pressing part 11 will not affect the pre-tightening force of the frame 2 on the pressing block 1 or the bending moment in the horizontal direction caused by the negative pressure of the photovoltaic module caused by the wind load. The third direction is perpendicular to the first direction and is specifically the length direction of the pressing block 1. The third direction can be referred to Figure 7 , Fig.14 and Fig.15 The arrow in C shows the direction.

[0063] In a preferred embodiment of the present invention, referring to Figure 1 , Figure 2 , Figures 4 to 6 , Fig. 9 An avoidance groove 14 is provided at the connection between the pressing surface 111 and the hook portion 12 .

[0064] The opening of the avoidance groove 14 faces away from the first top surface 112. The shape of the avoidance groove 14 can be semicircular, rectangular, etc. The avoidance groove 14 is provided at the connection between the pressing surface 111 and the hook portion 12, and the avoidance groove 14 is specifically located at the bottom of the pressing portion 11 near one end of the hook portion 12. The avoidance groove 14 can penetrate the pressing portion 11 along the third direction. In the embodiment of the utility model, by setting the avoidance groove 14, it is possible to avoid interference between the connection between the pressing surface 111 and the hook portion 12 and the bottom plate 21.

[0065] In a preferred embodiment of the present invention, referring to Fig. 9 The connecting portion 13 is connected to the pressing portion 11 through the inclined plate portion 15, and the inclined plate portion 15 is arranged at an angle to the pressing surface 111; the connecting portion 13 is also connected to the pressing plate portion 16, and the pressing plate portion 16 is located on at least one side of the pressing portion 11 along the second direction, and the pressing plate portion 16 includes a top pressing surface 162 close to the pressing portion 11 along the second direction.

[0066] Specifically, the connecting portion 13 is connected to the two pressing portions 11 respectively through two inclined plate portions 15. The angle between the inclined plate portion 15 and the pressing surface 111 can be greater than 0 degrees and less than 90 degrees. The angle between the inclined plate portion 15 and the pressing surface 111 is preferably greater than or equal to 45 degrees and less than 90 degrees. When the connecting portion 13 is connected to the bracket 3 through the fastener 4, the inclined plate portion 15 can directly transfer the preload force of the fastener 4 to the bottom plate 21, and the pressing effect on the frame 2 is stronger, so that the frame 2 and the bracket 3 are firmly connected, and the connection between the frame 2 and the bracket 3 is prevented from loosening; in addition, the upper limit of the preload force of the pressure block 1 is increased to prevent the fastener 4 from loosening.

[0067] The top pressure surface 162 is a plane, and the top pressure surface 162 is used to press the top plate 23 in the frame 2. The top plate 23 in the frame 2 is located on the side of the bottom plate 21 away from the bracket 3 along the second direction. The pressure plate portion 16 also includes a second top surface 161 opposite to the top pressure surface 162, and the second top surface 161 can be a plane, an inclined surface, an arc surface, etc. The second top surface 161 is preferably an inclined surface. When the photovoltaic module is subjected to negative pressure, the pressure plate portion 16 has a strong supporting effect on the top plate 23 of the frame 2, thereby preventing the bottom plate 21 from being excessively stressed locally and causing plastic deformation.

[0068] In a preferred embodiment of the present invention, referring to Figure 4 The pressing portion 11 further includes an inclined surface 113 connected to the pressing surface 111 , and an end of the inclined surface 113 away from the pressing surface 111 is higher than an end of the inclined surface 113 close to the pressing surface 111 .

[0069] If the bottom of the pressing part 11 is flat, after the fastener 4 is used to apply a certain pre-tightening force to the pressing block 1, the pressing block 1 will be deformed by the force, and its two ends will be lifted up, affecting the cooperation between the hook part 12 and the frame 2, and further affecting the anti-falling effect of the photovoltaic module.

[0070] When the bottom of the pressing part 11 is provided with an inclined surface 113, after a certain pre-tightening force is applied to the pressing block 1 using the fastener 4, the inclined surface 113 can transmit the pre-tightening force to both ends of the pressing block 1, thereby preventing the two ends of the pressing block 1 from tilting up, thereby ensuring the cooperation between the hook 12 and the frame 2, and further ensuring the anti-falling effect of the photovoltaic module. In addition, when the bottom of the pressing part 11 is provided with an inclined surface 113, the force exerted by the bottom plate 21 of the frame 2 on the end of the pressing part 11 away from the connecting part 13 is greater than the force exerted on the end of the pressing part 11 close to the connecting part 13, thereby ensuring the pressing effect of the pressing block 1 on the frame 2.

[0071] In a preferred embodiment of the present invention, referring to Figure 2 and Figure 3 A mounting hole 131 is formed on the connecting portion 13 , and a limiting strip 17 is disposed on the connecting portion 13 . The limiting strip 17 is located on at least one side of the mounting hole 131 along the first direction.

[0072] Specifically, the mounting hole 131 is used for the fastener 4 to pass through, and the fastener 4 can be a bolt. The pressing block 1 is connected to the bracket 3 through the fastener 4. The limiting strip 17 is used to limit the position of the matching piece 7 that matches the fastener 4. The matching piece 7 can be a nut, a nut, etc.

[0073] The number of the limiting strips 17 can be one, two, etc. When the number of the limiting strips 17 is one, the limiting strip 17 is located on one side of the mounting hole 131 along the first direction. When the number of the limiting strips 17 is two, the two limiting strips 17 are located on both sides of the mounting hole 131 along the first direction. The height of the limiting strip 17 protruding from the connection part 13 can be 2mm-8mm. The height of the limiting strip 17 protruding from the connection part 13 can be 2mm, 3mm, 5mm, 6mm, 7mm, 8mm, etc. By setting the limiting strip 17, the mating member 7 can be prevented from rotating when the fastener 4 is installed, thereby improving the installation efficiency.

[0074] In a preferred embodiment of the present invention, referring to Figure 6 and Figure 7 Along the second direction, a slot 132 is provided at one end of the connecting portion 13 close to the pressing portion 11, and the extension direction of the slot 132 is perpendicular to the first direction; along the third direction, the extension length of the slot 132 is less than the length of the connecting portion 13, and the third direction is perpendicular to the first direction and the second direction.

[0075] Specifically, the card slot 132 is used to be connected with the bracket 3. Figure 7 , Fig.14 and Fig.15 The height of the slot 132 gradually decreases from the outside to the inside. A straight section is retained at the end of the slot 132 with a smaller height, and the length of the straight section can be 2mm-10mm. The straight section in the slot 132 is used to be connected with the bracket 3. A side opening 311 is provided on the purlin 31, and the side opening 311 is used for the connection part 13 to pass through.

[0076] When installing the pressing block 1, a hammer can be used to knock from one side of the connecting portion 13 along the third direction until the straight section of the slot 132 is engaged with the purlin 31, so as to achieve an interference fit between the pressing block 1 and the purlin 31. It should be noted that when the straight section of the slot 132 is engaged with the purlin 31, the distance between the pressing surface 111 and the lower surface of the straight section of the slot 132 is slightly smaller than the distance between the upper surface of the bottom plate 21 in contact with the pressing surface 111 and the upper edge of the side opening 311. In this embodiment, the pressing block 1 is engaged with the bracket 3, and there is no need to use the fastener 4, which saves costs and improves installation efficiency.

[0077] In a preferred embodiment of the present invention, referring to Figure 8The clamping block 1 and the purlin 31 can be clamped together by the clamping member 6. At this time, a side opening 311 is provided on the purlin 31, and the side opening 311 is used for the clamping member 6 to pass through.

[0078] In the second aspect, the embodiment of the utility model further discloses a photovoltaic system, including a photovoltaic module, a bracket 3 and any one of the above-mentioned pressing blocks 1, wherein the photovoltaic module includes a frame 2, and the pressing block 1 is used to fix the frame 2 on the bracket 3. Since the photovoltaic system includes the above-mentioned pressing block, it also has the beneficial effects of the above-mentioned pressing block, which will not be repeated here.

[0079] Reference Figure 3 The pressing block 1 can be located between two adjacent photovoltaic modules. In this case, the pressing block 1 can be used to fix two adjacent frames 2 on the bracket 3. The pressing block 1 can also be located outside the edge of the photovoltaic module. Each photovoltaic module is preferably connected to the bracket through at least two pressing blocks 1.

[0080] In a preferred embodiment of the present invention, referring to Fig.14 The frame 2 includes a bottom plate 21 in contact with the bracket 3 and a side plate 24 connected to the bottom plate 21. A side groove 211 is opened on the bottom plate 21 along the first direction close to the side plate 24. The opening of the side groove 211 faces the side plate 24. The extension direction of the side groove 211 is consistent with the extension direction of the pressing block 1; the thickness of the side groove 211 is less than or equal to the thickness of the bottom plate 21.

[0081] Specifically, the extension direction of the pressing block 1 can refer to Fig.14 The bottom plate 21 may be a single-layer plate, in which case the side groove 211 is provided on one side of the bottom plate 21 close to the side plate 24 along the first direction. The bottom plate 21 may also be a double-layer plate, in which case the bottom plate 21 includes an upper folding portion 213 and a lower plate portion 212, and the side groove 211 may be provided at one end of the upper folding portion 213 close to the side plate 24, and the thickness of the side groove 211 is preferably equal to the thickness of the upper folding portion 213.

[0082] Reference Fig.14 , the side groove 211 may cooperate with the hook portion 12. The side groove 211 may not cooperate with the hook portion 12. Along the first direction, the width of the side groove 211 is 0.5mm-2mm. The width of the side groove 211 may be 0.5mm, 0.8mm, 0.9mm, 1mm, 1.5mm, 2mm, etc. Along the third direction, the length of the side groove 211 is less than the length of the bottom plate 21.

[0083] The photovoltaic module is tilted relative to the horizontal plane. After the photovoltaic module is installed, the fastener 4 may become loose over time, causing the pre-tightening force of the pressing block 1 on the frame 2 to decrease, and the photovoltaic module is at risk of sliding downward under the action of gravity. In the embodiment of the utility model, when the photovoltaic module slides downward, when the side groove 211 cooperates with the hook 12, the part of the bottom plate 21 without the side groove 211 will contact the pressing block 1, thereby limiting the photovoltaic module along the third direction, preventing the photovoltaic module from sliding downward under the action of gravity when the pressing block 1 is loose.

[0084] In a preferred embodiment of the utility model, the bottom plate 21 includes a lower plate portion 212 and an upper folding portion 213 arranged relatively to each other along the second direction. Along the first direction, the distance between the upper folding portion 213 and one end of the side plate 24 close to the bottom plate 21 is greater than zero. A groove portion 25 is formed between one end of the upper folding portion 213 close to the side plate 24 and one end of the side plate 24 close to the bottom plate 21. The hook portion 12 cooperates with the side groove 211 or the groove portion 25.

[0085] In this embodiment, the folded side wall 22 is a side wall on the upper folded portion 213 close to the side plate 24, and the hook portion 12 has a hook surface 121. Fig.13 When the hook portion 12 cooperates with the groove portion 25 , the hook surface 121 contacts the folded edge side wall 22 on the upper folded portion 213 .

[0086] In a preferred embodiment of the present invention, referring to Fig.15 The frame 2 is connected with an anti-slip component 5 , which protrudes from the bottom plate 21 of the frame 2 toward the bracket 3 along the second direction, and the anti-slip component 5 is located on one side of the bracket 3 along the third direction.

[0087] Specifically, an assembly hole can be provided on the base plate 21, and the anti-slip member 5 can be installed on the assembly hole. The cross-sectional shape of the anti-slip member 5 can be square, circular, trapezoidal, triangular, etc. The cross-sectional shape of the anti-slip member 5 is preferably circular. The anti-slip member 5 has a head and a main body, and the diameter of the head of the anti-slip member 5 is greater than the diameter of the main body. The main body in the anti-slip member 5 cooperates with the assembly hole, and the setting of the head of the anti-slip member 5 can prevent the anti-slip member 5 from falling. In the embodiment of the utility model, through the setting of the anti-slip member 5, when the photovoltaic assembly slides downward, the anti-slip member 5 will contact the purlin 31, thereby realizing the limitation of the photovoltaic assembly along the third direction, preventing the photovoltaic assembly from sliding downward under the action of gravity when the pressing block 1 is loose.

[0088] In a preferred embodiment of the utility model, the photovoltaic system further includes a fastener 4, the bracket 3 includes a purlin 31, the purlin 31 is provided with a bracket mounting hole, and the fastener 4 is used to penetrate the mounting hole on the pressing block 1 and the bracket mounting hole to fasten the pressing block 1 to the purlin 31.

[0089] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0090] The embodiments of the utility model are described above in conjunction with the accompanying drawings, but the utility model is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the enlightenment of the utility model, ordinary technicians in this field can also make many forms without departing from the scope of protection of the utility model and the claims, which all fall within the protection of the utility model.

Claims

1. A briquette, characterized in that: include: Connecting part; At least one pressing portion, wherein one side of the pressing portion along the first direction is connected to the connecting portion, and the other side of the pressing portion along the first direction extends toward the frame in the photovoltaic module, and the pressing portion comprises a first top surface and a pressing surface which are arranged opposite to each other along the second direction, wherein the first top surface is a plane, an inclined surface or an arc surface, and the second direction is perpendicular to the first direction; At least one hook portion, the hook portion is arranged at one end of the pressing surface along the first direction away from or close to the connecting portion, and the hook portion has a hook surface.

2. The compact according to claim 1, characterized in that The first top surface is an inclined surface or a curved surface, and an end of the first top surface close to the connecting portion is higher than an end of the first top surface away from the connecting portion.

3. The compact according to claim 1, characterized in that The hook portion is disposed at one end of the pressing surface away from the connecting portion along the first direction, and the hook portion protrudes from the pressing surface along the second direction.

4. The compact according to claim 1, characterized in that: From the direction pointing from the connecting portion to the pressing portion, the thickness of the pressing portion along the second direction gradually decreases.

5. The compact according to claim 3, characterized in that: An avoidance groove is provided at the connection between the pressing surface and the hook portion.

6. The compact according to claim 1, characterized in that The connecting portion is connected to the pressing portion via an inclined plate portion, and the inclined plate portion is arranged at an angle to the pressing surface; The connecting portion is further connected to a pressing plate portion, the pressing plate portion is located at least on one side of the pressing portion along the second direction, and the pressing plate portion includes a top pressing surface close to the pressing portion along the second direction.

7. The compact according to any one of claims 1 to 6, characterized in that: The pressing portion further includes an inclined surface connected to the pressing surface, and an end of the inclined surface away from the pressing surface is higher than an end of the inclined surface close to the pressing surface.

8. The compact according to any one of claims 1 to 6, characterized in that: A mounting hole is formed on the connecting portion, and a limiting strip is arranged on the connecting portion. The limiting strip is located on at least one side of the mounting hole along the first direction.

9. The compact according to any one of claims 1 to 6, characterized in that: Along the second direction, a slot is formed at one end of the connecting portion close to the pressing portion, and an extending direction of the slot is perpendicular to the first direction; Along the third direction, the extending length of the card slot is less than the length of the connecting portion, and the third direction is perpendicular to the first direction and perpendicular to the second direction.

10. A photovoltaic system, characterized in that: It comprises a photovoltaic component, a bracket and the pressing block according to any one of claims 1 to 9, wherein the photovoltaic component comprises a frame, and the pressing block is used to fix the frame on the bracket.

11. The photovoltaic system according to claim 10, characterized in that: The frame includes a bottom plate in contact with the bracket and a side plate connected to the bottom plate, a side groove is provided on a side of the bottom plate close to the side plate along a first direction, and an opening of the side groove faces the side plate; The depth of the side groove along the second direction is less than or equal to the thickness of the bottom plate.

12. The photovoltaic system according to claim 11, characterized in that: The bottom plate includes a lower plate portion and an upper folding portion which are arranged relatively to each other along the second direction. Along the first direction, the distance between the upper folding portion and an end of the side plate close to the bottom plate is greater than zero. A groove is formed between an end of the upper folding portion close to the side plate and an end of the side plate close to the bottom plate. The hook portion cooperates with the side groove or the groove.

13. The photovoltaic system according to claim 11 or 12, characterized in that: The frame is connected with an anti-slipping piece, the anti-slipping piece protrudes from the bottom plate toward the bracket along the second direction, and the anti-slipping piece is located at one side of the bracket along the third direction.

Images