Photovoltaic support system

Abstract

The utility model discloses a photovoltaic support system, comprising a plurality of photovoltaic assemblies and assembly purlines supporting the photovoltaic assemblies, the assembly purlines extending along a first direction; in the first direction, a first gap is formed between every two adjacent photovoltaic assemblies, auxiliary water guide grooves extending in the second direction are formed in the sides, close to the photovoltaic assemblies, of the assembly purlines, and the second direction intersects with the first direction; the auxiliary water guide groove is connected with the assembly purline through a support, the support is clamped with the auxiliary water guide groove, a plurality of convex ribs protruding towards the auxiliary water guide groove are arranged on the side, close to the auxiliary water guide groove, of the support, and the convex ribs extend in the second direction and are arranged at intervals in the first direction; the photovoltaic module comprises a frame, a pressing block is connected with the frame and the support, a bolt penetrates through the pressing block in the third direction to be connected with a nut, and the pressing block is connected with the support. The auxiliary water guiding grooves are directly fixed to the assembly purlines through the supports, water flow can flow through the gaps of the convex ribs, and the drainage effect of the auxiliary water guiding grooves cannot be affected while the connection stability of the auxiliary water guiding grooves is improved.

Description

Technical Field

[0001] The utility model relates to the field of solar cells, and more specifically, to a photovoltaic support system. Background Art

[0002] Photovoltaic building integration is a new hot spot for the application of solar power generation. It provides electricity by installing solar photovoltaic arrays on the outer surface of the building's enclosure structure. This requires a reliable connection between the building structure and the photovoltaic components, and at the same time, it must be able to have functions such as rainwater leakage prevention, windproof, vibration prevention, ventilation and heat dissipation. At present, the photovoltaic component support beam and the main water tank are usually integrated into one structure, and the secondary water tank needs to be fixed on the main water tank. Under this connection method, due to the thin thickness of the main water tank, there is a risk of deformation and tearing at the connection, resulting in unstable connection of the secondary water tank.

[0003] Therefore, there is an urgent need to provide a photovoltaic support system that can reduce and improve the connection stability of the secondary water guide channel. Utility Model Content

[0004] In view of this, the utility model provides a photovoltaic support system, comprising: a plurality of photovoltaic modules and module purlins supporting the photovoltaic modules, wherein the module purlins extend along a first direction;

[0005] Along the first direction, there is a first gap between two adjacent photovoltaic modules, and a secondary water guide groove extending along a second direction is provided on a side of the module purlin close to the photovoltaic module, and the second direction intersects with the first direction; along the third direction, the orthographic projection of the secondary water guide groove at least partially overlaps with the orthographic projection of the first gap, and the third direction intersects with the first direction and the second direction;

[0006] The secondary water guide groove is connected to the component purlin through a support, the support is engaged with the secondary water guide groove, and a side of the support close to the secondary water guide groove is provided with a plurality of convex ribs protruding toward the secondary water guide groove, and the convex ribs extend along the second direction and are arranged at intervals along the first direction; the photovoltaic component includes a frame, a pressure block connects the frame and the support, a bolt passes through the pressure block along the third direction, and the pressure block is connected to the support.

[0007] Optionally, the photovoltaic support system further comprises a support purlin extending along the second direction, and the component purlin connects the photovoltaic component and the support purlin;

[0008] Along the second direction, there is a second gap between two adjacent photovoltaic components, and a main water trough extending along the second direction is provided on the side of the support purlin close to the photovoltaic component, and both ends of the secondary water trough are overlapped on the main water trough; along the third direction, the orthographic projection of the main water trough at least partially overlaps with the orthographic projection; along the second direction, there is a gap between the main water trough and the component purlin.

[0009] Optionally, along the third direction, the height of the main water channel is less than or equal to the height of the component purlin.

[0010] Optionally, along the second direction, L-shaped fixing seats are provided on both sides of the main water channel, one end of the fixing seat is connected to the side wall of the main water channel, and the other end of the fixing seat is connected to the bracket purlin.

[0011] Optionally, the photovoltaic support system further includes a first T-shaped sealing strip and a second T-shaped sealing strip, the first sealing strip engages with the first gap; the second sealing strip engages with the second gap, and along the first direction, the orthographic projection of the first sealing strip does not overlap with the orthographic projection of the pressing block.

[0012] Optionally, the thickness of the main water channel is between 0.5mm and 1.0mm.

[0013] Optionally, the component purlin is a C-shaped purlin, and along the second direction, L-shaped purlin supports are provided on both sides of the component purlin, and the purlin supports are connected to the bracket purlin, and the component purlin and the purlin supports are connected by bolts penetrating the component purlin and the purlin supports along the second direction.

[0014] Optionally, the support includes a first part, a second part and a third part connecting the first part and the second part; the first part is located in the secondary water guide groove and contacts the bottom edge of the secondary water guide groove; the third part is in a "X" shape, and the side of the secondary water guide groove is engaged in the groove of the third part; the second part is connected to the component purlin.

[0015] Optionally, the frame includes an edge frame and a middle frame; the pressure block includes a middle pressure block and a side pressure block; the middle pressure block is in an I-shape, and the middle pressure block connects the middle frame and the support; the side pressure block is in an L-shape, and the side pressure block connects the edge frame and the support.

[0016] Optionally, it further includes a plurality of maintenance pedals, a plurality of photovoltaic components arranged in an array constitute a photovoltaic array, and a plurality of maintenance pedals are arranged as an L-shaped pedal array, and the pedal array at least surrounds two adjacent sides of the photovoltaic array.

[0017] Compared with the prior art, the photovoltaic support system provided by the utility model achieves at least the following beneficial effects:

[0018] The utility model provides a photovoltaic support system comprising: a plurality of photovoltaic modules and module purlins supporting the photovoltaic modules, wherein the module purlins extend along a first direction; along the first direction, a first gap is provided between two adjacent photovoltaic modules, a secondary water guide groove extending along a second direction is provided on a side of the module purlin close to the photovoltaic module, and the second direction intersects with the first direction; along a third direction, an orthographic projection of the secondary water guide groove at least partially overlaps with an orthographic projection of the first gap, and the third direction intersects with the first direction and the second direction; the secondary water guide groove is connected to the module purlin through a support, the support is engaged with the secondary water guide groove, a side of the support close to the secondary water guide groove is provided with a plurality of convex ribs protruding toward the secondary water guide groove, the convex ribs extend along the second direction and are arranged at intervals along the first direction; the photovoltaic module comprises a frame, a pressing block connects the frame and the support, a bolt passes through the pressing block along the third direction and is connected to a nut, and the pressing block is connected to the support. The secondary water guide groove is directly fixed on the component purlin through the support, which improves the connection stability of the secondary water guide groove; and a plurality of convex ribs protruding toward the secondary water guide groove are provided on the side of the support close to the secondary water guide groove, and water can flow through the gaps between the convex ribs, which will not affect the drainage effect of the secondary water guide groove while fixing the secondary water guide groove.

[0019] Of course, any product implementing the present utility model does not necessarily need to achieve all of the above-mentioned technical effects at the same time.

[0020] Other features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the present invention and, together with the description, serve to explain the principles of the present invention.

[0022] Figure 1 This is a schematic diagram of the photovoltaic support system provided by the utility model;

[0023] Figure 2 yes Figure 1 An enlarged schematic diagram of the A area in the middle;

[0024] Figure 3 This is another schematic diagram of the photovoltaic support system provided by the utility model;

[0025] Figure 4 yes Figure 3 A cross-sectional view in the N-N' direction;

[0026] Figure 5 yes Figure 3 An enlarged schematic diagram of the middle B area;

[0027] Figure 6 yes Figure 3 An enlarged schematic diagram of the middle C region;

[0028] Figure 7 yes Figure 3 An enlarged schematic diagram of region D in the middle. DETAILED DESCRIPTION

[0029] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention.

[0030] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present invention, its application, or uses.

[0031] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.

[0032] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0033] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0034] Reference Figure 1-Figure 4 The utility model provides a photovoltaic support system, comprising: a plurality of photovoltaic modules 1 and module purlins 2 supporting the photovoltaic modules 1, wherein the module purlins 2 extend along a first direction X;

[0035] Along the first direction X, there is a first gap 13 between two adjacent photovoltaic modules 1, and a secondary water guide groove 3 extending along a second direction Y is provided on a side of the module purlin 2 close to the photovoltaic module 1, and the second direction Y intersects with the first direction X; along the third direction Z, the orthographic projection of the secondary water guide groove 3 at least partially overlaps with the orthographic projection of the first gap 13, and the third direction Z intersects with the first direction X and the second direction Y;

[0036] The secondary water guide groove 3 is connected to the component purlin 2 through the support 4, the support 4 is engaged with the secondary water guide groove 3, and a side of the support 4 close to the secondary water guide groove 3 is provided with a plurality of convex ribs 40 protruding toward the secondary water guide groove 3, and the convex ribs 40 extend along the second direction Y and are arranged at intervals along the first direction X; the photovoltaic component 1 includes a frame 11, a pressing block 5 connects the frame 11 and the support 4, a bolt passes through the pressing block 5 along the third direction Z and is connected to the nut, and the pressing block 5 is connected to the support 4.

[0037] Specifically, refer to Figure 1 The photovoltaic support system provided in this embodiment includes a plurality of photovoltaic modules 1 and module purlins 2 for supporting the photovoltaic modules 1 .

[0038] Reference Figure 2 , along the first direction X, there is a first gap 13 between two adjacent photovoltaic modules 1, and a secondary water guide groove 3 extending along the second direction Y is provided on the side of the module purlin 2 close to the photovoltaic module 1, and the second direction Y intersects with the first direction X; along the third direction Z, the orthographic projection of the secondary water guide groove 3 at least partially overlaps with the orthographic projection of the first gap 13, and the third direction Z intersects with the first direction X and the second direction Y; optionally, along the third direction Z, the orthographic projection of the first gap 13 is located within the orthographic projection of the secondary water guide groove 3, that is, the secondary water guide groove 3 covers the first gap 13, and the secondary water guide groove 3 guides water to the gap between the photovoltaic roof modules to achieve a waterproof effect, thereby reducing the risk of water leakage, Figure 2 In the figure, the orthographic projection of the first slit 13 is only taken as an example to be located within the orthographic projection of the secondary water guide groove 3 .

[0039] Combination Figure 3 , Figure 4 The secondary water guide groove 3 is connected to the assembly purlin 2 through the support 4, the support 4 is engaged with the secondary water guide groove 3, and a plurality of convex ribs 40 protruding toward the secondary water guide groove 3 are provided on the side of the support 4 close to the secondary water guide groove 3, the convex ribs 40 extend along the second direction Y and are arranged at intervals along the first direction X; the photovoltaic assembly 1 includes a frame 11, a pressing block 5 connects the frame 11 and the support 4, and a bolt passes through the pressing block 5 and is connected to a nut along the third direction Z, so that the pressing block 5 is connected to the support 4. By providing the convex ribs 40, the water flow of the secondary water guide groove 3 can flow through the gap of the convex ribs 40, and the support 4 will not affect the drainage effect of the secondary water guide groove 3 while fixing the secondary water guide groove 3.

[0040] It should be noted that in the prior art, the main water trough usually also serves as a bearing component to support the photovoltaic module. The Chinese patent application publication number CN112709382A, published on April 27, 2021, is titled "A Photovoltaic BIPV Module and Photovoltaic System", which discloses a photovoltaic BIPV module and photovoltaic system, in which the mountain-shaped longitudinal water guide trough is the main water guide trough, and the U-shaped transverse water guide trough is the secondary water guide trough. Since the main water guide trough also serves as a support, the secondary water guide trough needs to be fixed on the main water guide trough. In this connection method, due to the thin thickness of the main water guide trough, when under external wind and snow pressure loads and thermal expansion and contraction, there is a risk of deformation and tearing at the connection, resulting in unstable connection of the secondary water guide trough.

[0041] It can be understood that in the photovoltaic support system provided in this embodiment, the secondary water guide groove 3 is directly fixed on the component purlin 2 through the support 4, which improves the connection stability of the secondary water guide groove 3; and the support 4 is provided with a plurality of convex ribs 40 protruding toward the secondary water guide groove 3 on the side close to the secondary water guide groove 3, and the water flow can flow through the gaps of the convex ribs 40, which will not affect the drainage effect of the secondary water guide groove 3 while fixing the secondary water guide groove 3.

[0042] In some optional embodiments, referring to Figure 3 , Figure 5 , the photovoltaic support system further includes a support purlin 6 extending along the second direction Y, and the component purlin 2 connects the photovoltaic component 1 and the support purlin 6;

[0043] Along the second direction Y, there is a second gap 14 between two adjacent photovoltaic components 1, and a main water trough 7 extending along the second direction Y is provided on the side of the bracket purlin 6 close to the photovoltaic component 1, and both ends of the auxiliary water trough 3 are overlapped on the main water trough 7; along the third direction Z, the orthographic projection of the main water trough 7 at least partially overlaps with the orthographic projection of the second gap 14; along the second direction Y, there is a gap between the main water trough 7 and the component purlin 2.

[0044] Specifically, the bottom of the main water tank 7 can be a V-shaped structure (not shown in the figure), and can be directly overlapped by shingles without gluing, so as to avoid leakage at the joints over time after gluing. Figure 5 Along the third direction Z, the orthographic projection of the second gap 14 is located within the orthographic projection of the main water tank 7, that is, the main water tank 7 covers the second gap 14, and guides water to the gaps between the components of the photovoltaic roof to achieve a waterproof effect and reduce the risk of water leakage.

[0045] It should be noted that the main water tank in the prior art has both drainage and support functions. In order to make the main water tank have sufficient strength to provide stable support for the photovoltaic modules, the overall material redundancy of the main water tank is large, resulting in material waste and increased design costs.

[0046] It can be understood that in this embodiment, the main water trough 7 is arranged below the second gap 14 and is directly connected to the support purlin 6. The photovoltaic module 1 is connected to the support purlin 6 through the module purlin 2. The main water trough 7 and the module purlin 2 both extend along the second direction Y, and along the first direction X, the main water trough 7 and the module purlin 2 are spaced apart; that is, the drainage components and the load-bearing components of the photovoltaic module 1 are arranged separately, and the main water trough 7 does not play a load-bearing role, which can avoid the design load redundancy phenomenon; along the first direction X, the interval between two adjacent module purlins 2 is 1100mm-1400mm, and the component force is more in line with the component design requirements.

[0047] In some optional embodiments, referring to Figure 5 , along the third direction Z, the height of the main water tank 7 is less than or equal to the height of the component purlin 2.

[0048] It should be noted that the secondary water guide groove 3 is arranged in multiple sections. Along the first direction X, the orthographic projection of the secondary water guide groove 3 and the orthographic projection of the second gap 14 at least partially do not overlap. The two ends of the secondary water guide groove 3 are respectively overlapped on the two adjacent main water guide grooves 7. Specifically, the secondary water guide groove 3 has a bending portion 31, and the bending portion 31 extends into the main water guide groove 7 to facilitate the water flow of the secondary water guide groove 3 to remain in the main water guide groove 7.

[0049] It is understandable that, since the main water channel 7 is arranged below the photovoltaic module 1 and is directly connected to the support purlin 6, the secondary water channel 3 is also arranged below the photovoltaic module 1 and is connected to the support purlin 6 through the module purlin 2. To ensure that the secondary water channel 3 can overlap above the main water channel 7, the height of the main water channel 7 needs to be less than the height of the module purlin 2, or the height of the main water channel 7 is equal to the height of the module purlin 2.

[0050] In some optional embodiments, referring to Figure 6 Along the second direction Y, L-shaped fixing seats 8 are provided on both sides of the main water trough 7, one end of the fixing seat 8 is connected to the side wall 71 of the main water trough 7, and the other end of the fixing seat 8 is connected to the bracket purlin 6.

[0051] Optionally, an N-shaped limiting portion 81 is further provided at one end of the fixing seat 8 close to the main water trough 7, and the side wall 71 of the main water trough 7 is engaged in the groove of the limiting portion 81. The fixing seat 8 is connected to the main water trough 7 by bolts penetrating the limiting portion 81 and the side wall 71 of the main water trough 7 and connecting with nuts; the fixing seat 8 is connected to the bracket purlin 6 by bolts penetrating one end of the fixing seat 8 close to the bracket purlin 6 and connecting with nuts, thereby connecting the fixing seat 8 to the bracket purlin 6, thereby connecting the main water trough 7 and the bracket purlin 6.

[0052] It is understandable that in the prior art, the water channel is also used as a bearing component. In order to meet the strength requirements, a complex water channel structure needs to be designed, and it is not easy to install. In this embodiment, the main water channel 7 does not need to play a bearing role, and the main water channel 7 and the bracket purlin 6 can be directly connected through the L-shaped fixing seat 8, which has a simple structure and is easy to install.

[0053] In some optional embodiments, referring to Figure 2 , Figure 6 The photovoltaic support system also includes a T-shaped first sealing strip 91 and a T-shaped second sealing strip 92. The first sealing strip 91 is engaged with the first gap 13; the second sealing strip 92 is engaged with the second gap 14. Along the first direction X, the orthographic projection of the first sealing strip 91 does not overlap with the orthographic projection of the pressing block 5.

[0054] It can be understood that by setting the first sealing strip 91 to engage with the first gap 13 and the second sealing strip 92 to engage with the second gap 14, that is, setting the sealing strip to cover the gap of the photovoltaic module 1, rainwater is prevented from seeping in. Specifically, the surface of the first sealing strip 91 away from the photovoltaic module 1 is an arc surface that protrudes away from the main water channel 7, and the arc surface is more convenient for the flow of rainwater and prevents rainwater from entering the water channel.

[0055] In some optional embodiments, referring to Figure 5 The thickness of the main water tank 7 is between 0.5mm and 1.0mm.

[0056] Specifically, the thickness of the main water channel 7 may be 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, 0.9 mm or 1.0 mm. The thickness of the main water channel 7 may also be other values ​​within the above range. The thickness of the main water channel 7 is not specifically limited herein.

[0057] It is understandable that when the thickness of the main water tank 7 is less than 0.5 mm, the thickness of the main water tank 7 is too thin and there is a risk of deformation. When the thickness of the main water tank 7 is greater than 1.0 mm, the thickness of the main water tank 7 is too thick and the overall material redundancy of the main water tank 7 is large, which increases the cost. Therefore, the thickness of the main water tank 7 is between 0.5 mm and 1.0 mm, which ensures stability while saving costs.

[0058] In some optional embodiments, referring to Figure 5 The component purlin 2 is a C-shaped purlin. Along the second direction Y, L-shaped purlin brackets 21 are provided on both sides of the component purlin 2. The purlin brackets 21 are connected to the bracket purlin 6. Bolts penetrate the component purlin 2 and the purlin brackets 21 along the second direction Y to connect the component purlin 2 and the purlin brackets 21.

[0059] It should be noted that in the prior art, the component purlin and the main gutter are an integrated drainage support structure, and the component purlin structure is limited by the main gutter structure. In this embodiment, the component purlin only plays a bearing role, and the component purlin can also be a U-shaped steel purlin, or a purlin of other structures in the prior art, and the structural design is open; for the corner area of ​​the roof, due to the high wind suction effect, the component purlin can adopt a higher strength structural design, and the structural design is not limited by the main gutter.

[0060] It is understandable that if the purlin bracket 21 is only provided on one side of the component purlin 2, the component purlin 2 is prone to shake along the second direction Y, and the connection is unstable. In this embodiment, L-shaped purlin brackets 21 are provided on both sides of the component purlin 2, and the component purlin 2 and the purlin bracket 21 are connected by bolts penetrating the component purlin 2 and the purlin bracket 21 along the second direction Y, thereby improving the stability of the purlin connection, and the purlin bracket 21 and the bracket purlin 6 are connected by bolts penetrating one end of the purlin bracket 21 close to the bracket purlin 6 along the third direction Z, thereby connecting the purlin bracket 21 to the component purlin 2 and the bracket purlin 6, so that the purlin bracket 21 connects the component purlin 2 and the bracket purlin 6. The C-shaped component purlin 2 and the L-shaped purlin bracket 21 are simple in structure and easy to install.

[0061] In some optional embodiments, referring to Figure 4 The support 4 includes a first portion 41, a second portion 42 and a third portion 43 connecting the first portion 41 and the second portion 42; the first portion 41 is located in the auxiliary water guide groove 3 and contacts the bottom edge 32 of the auxiliary water guide groove 3; the third portion 43 is in a "X" shape, and the side edge 31 of the auxiliary water guide groove 3 is engaged in the groove of the third portion 43; the second portion 42 is connected to the component purlin 2.

[0062] It can be understood that the first portion 41 of the support 4 is located in the secondary water channel 3 and contacts the bottom edge 32 of the secondary water channel 3, the side edge 31 of the secondary water channel 3 is engaged in the groove of the third portion 43, and the second portion 42 is connected to the component purlin 2, so that the support 4 is engaged with the secondary water channel 3, avoiding the shaking of the secondary water channel 3 and improving the connection stability of the secondary water channel 3. Specifically, the bolt passes through the second portion 42 and the component purlin 2 along the third direction Z and is connected with the nut, so that the support 4 is connected to the component purlin 2, Figure 4 The second portion 42 is only L-shaped as an example, and the second portion 42 can also be a straight line shape directly attached to the component purlin 2 (not shown in the figure).

[0063] In some optional embodiments, referring to Figure 4 , Figure 7 The frame 11 includes an edge frame 102 and a middle frame 101; the pressing block 5 includes a middle pressing block 51 and a side pressing block 52; the middle pressing block 51 is in a straight line shape, and the middle pressing block 51 connects the middle frame 101 and the support 4; the side pressing block 52 is in an L-shape, and the side pressing block 52 connects the edge frame 102 and the support 4.

[0064] Specifically, refer to Figure 4The photovoltaic module 1 includes a laminate 12 and a frame 11; the laminate 12 includes a first cover plate 121, a first adhesive film 122, a battery cell 123, a second adhesive film 124 and a second cover plate 125 arranged in sequence, the first cover plate is glass 121, and the second cover plate 125 is glass or a back plate; the frame 11 includes a top plate 111 and a bottom plate 112 arranged opposite to each other along a third direction Z, and a side plate 113 connects one end of the top plate 111 and the bottom plate 112, The transverse partition 114 is arranged between the top plate 111 and the bottom plate 112, one end of the transverse partition 114 is connected to the side plate 113, and the vertical partition 115 connects the transverse partition 114 and the bottom plate 112; the top plate 111, the side plate 112 and the transverse partition 113 constitute a mounting groove 114, and the laminate 12 is installed in the mounting groove 114; the frame 11 is located between the pressing block 5 and the support 4, the top plate 111 is in contact with the pressing block 5, and the bottom plate 112 is in contact with the support 4.

[0065] It should be noted that, combined with Figure 3 , Figure 4 , along the first direction X, both sides of the photovoltaic assembly 1 have adjacent photovoltaic assemblies 1 or maintenance pedals 10, then the photovoltaic assembly 1 is the middle photovoltaic assembly, and its frame 1 is the middle frame 101; combined Figure 3 , Figure 7 If, along the first direction X, only one side of the photovoltaic component 1 has adjacent photovoltaic components 1 , then the photovoltaic component 1 is an edge photovoltaic component, and its edge frame 1 is an edge frame 102 .

[0066] It is understandable that, referring to Figure 3 The middle pressure block 51 is in a straight line shape, and the middle pressure block 51 connects two adjacent photovoltaic modules 1, that is, the middle pressure block 51 connects the middle frame 101, and the middle pressure block 51 fits the top plate 111 of the middle frame 101. The bolts penetrate the middle pressure block 51 and the support 4 and are connected with the nuts along the third direction Z. The middle pressure block 51 and the support 4 limit the middle frame 101 located between the middle pressure block 51 and the support 4, thereby fixing the middle frame 101.

[0067] Reference Figure 7 The edge pressing block 52 is L-shaped, and the edge pressing block 52 connects the photovoltaic module 1 and the support 4. One end of the edge pressing block 52 is in contact with the edge frame 102, and the other end of the edge pressing block 52 is in contact with the support 4. The bolt passes through the edge pressing block 52 and the support 4 along the third direction Z and is connected with the nut. The edge pressing block 52 and the support 4 limit the edge frame 102 between the two, thereby fixing the edge frame 102. The middle pressing block 51 and the edge pressing block 52 have a simple structure and are easy to install.

[0068] In some optional embodiments, referring to Figure 3The photovoltaic support system also includes a plurality of maintenance pedals 10 , and a plurality of photovoltaic components 1 arranged in an array constitute a photovoltaic array 100 . The plurality of maintenance pedals 10 are arranged as an L-shaped pedal array 200 , and the pedal array 200 at least surrounds two adjacent sides of the photovoltaic array 100 .

[0069] It should be noted that the maintenance pedal 10 and the adjacent photovoltaic components 1 have gaps in the first direction X and the second direction Y (not shown in the figure). Similarly, a secondary water guide groove is arranged below the gap along the first direction X, and a main water guide groove 7 is arranged below the gap along the second direction Y.

[0070] It can be understood that the pedal array 200 at least surrounds two adjacent sides of the photovoltaic array 100 , and the pedal array 200 is provided to facilitate maintenance work for the staff.

[0071] It can be seen from the above embodiments that the photovoltaic support system provided by the utility model achieves at least the following beneficial effects:

[0072] The utility model provides a photovoltaic support system comprising: a plurality of photovoltaic modules and module purlins supporting the photovoltaic modules, wherein the module purlins extend along a first direction; along the first direction, a first gap is provided between two adjacent photovoltaic modules, a secondary water guide groove extending along a second direction is provided on a side of the module purlin close to the photovoltaic module, and the second direction intersects with the first direction; along a third direction, an orthographic projection of the secondary water guide groove at least partially overlaps with an orthographic projection of the first gap, and the third direction intersects with the first direction and the second direction; the secondary water guide groove is connected to the module purlin through a support, the support is engaged with the secondary water guide groove, a side of the support close to the secondary water guide groove is provided with a plurality of convex ribs protruding toward the secondary water guide groove, the convex ribs extend along the second direction and are arranged at intervals along the first direction; the photovoltaic module comprises a frame, a pressing block connects the frame and the support, a bolt passes through the pressing block along the third direction, and the pressing block is connected to the support. The secondary water guide groove is directly fixed on the component purlin through the support, which improves the connection stability of the secondary water guide groove; and a plurality of convex ribs protruding toward the secondary water guide groove are provided on the side of the support close to the secondary water guide groove, and water can flow through the gaps between the convex ribs, which will not affect the drainage effect of the secondary water guide groove while fixing the secondary water guide groove.

[0073] Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present invention. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A photovoltaic support system, characterized in that: include: A plurality of photovoltaic modules and module purlins supporting the photovoltaic modules, wherein the module purlins extend along a first direction; Along the first direction, there is a first gap between two adjacent photovoltaic modules, and a secondary water guide groove extending along a second direction is provided on a side of the module purlin close to the photovoltaic module, and the second direction intersects with the first direction; Along a third direction, an orthographic projection of the secondary water guide groove at least partially overlaps an orthographic projection of the first gap, and the third direction intersects the first direction and the second direction; The secondary water guide groove is connected to the component purlin through a support, the support is engaged with the secondary water guide groove, and a side of the support close to the secondary water guide groove is provided with a plurality of convex ribs protruding toward the secondary water guide groove, and the convex ribs extend along the second direction and are arranged at intervals along the first direction; the photovoltaic component includes a frame, a pressure block connects the frame and the support, a bolt passes through the pressure block along the third direction, and the pressure block is connected to the support.

2. The photovoltaic support system according to claim 1, characterized in that: It also includes a support purlin extending along the second direction, wherein the component purlin connects the photovoltaic component and the support purlin; Along the second direction, there is a second gap between two adjacent photovoltaic modules, and a main water channel extending along the second direction is provided on one side of the support purlin close to the photovoltaic module, and both ends of the secondary water channel are overlapped on the main water channel; Along the third direction, the orthographic projection of the main water channel at least partially overlaps with the orthographic projection; Along the second direction, there is a gap between the main water channel and the component purlin.

3. The photovoltaic support system according to claim 2, characterized in that: Along the third direction, the height of the main water channel is less than or equal to the height of the component purlin.

4. The photovoltaic support system according to claim 2, characterized in that: Along the second direction, L-shaped fixing seats are provided on both sides of the main water channel, one end of the fixing seat is connected to the side wall of the main water channel, and the other end of the fixing seat is connected to the support purlin.

5. The photovoltaic support system according to claim 2, characterized in that: It also includes a T-shaped first sealing strip and a T-shaped second sealing strip, the first sealing strip is engaged with the first gap; the second sealing strip is engaged with the second gap, and along the first direction, the orthographic projection of the first sealing strip does not overlap with the orthographic projection of the pressing block.

6. The photovoltaic support system according to claim 2, characterized in that: The thickness of the main water tank is between 0.5mm and 1.0mm.

7. The photovoltaic support system according to claim 1, characterized in that: The component purlin is a C-shaped purlin. Along the second direction, L-shaped purlin brackets are provided on both sides of the component purlin. The purlin brackets are connected to the bracket purlins. The component purlin and the purlin brackets are connected by bolts penetrating the component purlin and the purlin brackets along the second direction.

8. The photovoltaic support system according to claim 1, characterized in that: The support includes a first part, a second part and a third part connecting the first part and the second part; the first part is located in the auxiliary water guide groove and contacts the bottom edge of the auxiliary water guide groove; the third part is in a "X" shape, and the side edge of the auxiliary water guide groove is engaged in the groove of the third part; the second part is connected to the component purlin.

9. The photovoltaic support system according to claim 1, characterized in that: The frame includes an edge frame and a middle frame; the pressure block includes a middle pressure block and a side pressure block; the middle pressure block is in a straight line shape, and the middle pressure block connects the middle frame and the support; the side pressure block is in an L-shape, and the side pressure block connects the edge frame and the support.

10. The photovoltaic support system according to claim 1, characterized in that: It also includes a plurality of maintenance pedals. The plurality of photovoltaic components arranged in an array constitute a photovoltaic array. The plurality of maintenance pedals are arranged into an L-shaped pedal array. The pedal array at least surrounds two adjacent sides of the photovoltaic array.

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