A photovoltaic panel mounting bracket

Abstract

The present invention discloses a mounting frame for photovoltaic panels, belonging to the technical field of brackets for installing solar photovoltaic panels, comprising a water trough, fasteners and a transverse water guide trough. A hook structure is arranged on the inner wall of the water trough. The fasteners are composed of a hook, a pressing strip and a self-drilling screw. The hook is composed of a cross bridge and hook feet symmetrically arranged at both ends of the cross bridge. The hook feet are hooked on the hook structure. The pressing strip is strip-shaped and includes a limiting groove and a pressing plate. The pressing plates are symmetrically arranged at the two edges of the limiting groove and horizontally extend outwards. The limiting groove is placed in the longitudinal splicing seam. The present invention effectively increases the drainage volume of the water trough and reduces the amount of water entering the water trough. The innovative structure is more convenient to install, collects and manages the wires and effectively supports the photovoltaic panels.

Description

Technical Field

[0001] The present invention relates to the technical field of brackets for installing solar photovoltaic panels, and more specifically, to a mounting rack for photovoltaic panels. Background Art

[0002] Anhui Yuxin Electric Power Engineering Co., Ltd. applied for invention patents for a bracket for a new type of photovoltaic panel (application number: CN202010466130.X), an integrated water tank bracket for a photovoltaic panel (application number: CN201910115863.6), and a fixing member for an integrated water tank bracket for a photovoltaic panel (application number: CN202010466144.1). The simultaneously applied-for utility model patents have been authorized. This patented technology has solved problems such as the installation firmness and drainage of previous photovoltaic panels, and has brought great economic benefits to the company and great social benefits to society. This year, the company established Anhui Yuxin New Materials Co., Ltd. specifically for the research, production, and sales of photovoltaic panel brackets.

[0003] In the actual use process, the following several problems need to be improved:

[0004] (1) Heavy rainfall puts higher requirements on the drainage volume of the water tank in the original patent. Our company needs to design a new type of water tank bracket to improve the drainage volume of the water tank;

[0005] (2) The installation firmness of the original fasteners already meets the requirements, but it is necessary to first install and fix the lower clamping block and the middle clamping block on the water tank one by one, and then fasten the photovoltaic panel through the installation of the upper pressing block. There are two processes of tightening bolts, and the labor cost for installation is relatively high. Our company needs to design a new type of fastener component that is used in conjunction with the water tank to achieve the purpose of simple installation and labor saving.

[0006] (3) The installation process is relatively complex and the labor cost is high;

[0007] (4) The material cost and manufacturing cost of the cover plate are relatively high;

[0008] (5) There is a gap between the cover plate and the photovoltaic panel, and rainwater will flow into the water tank through the gap. The water tank diverts the rainwater. Since this is a longitudinal main confluence water tank and there is also a transverse lateral water guide trough for rainwater confluence, in the case of heavy rainfall, it puts higher requirements on the drainage volume of the main water tank. There is a situation where the drainage is insufficient and the water level in the water tank rises above the gap between the water tank and the photovoltaic panel, causing leakage. The new company is committed to making research breakthroughs in this direction;

[0009] (6) The size of the photovoltaic panel is getting larger and larger. The middle part of the photovoltaic panel sags and depresses due to gravity, and long-term sagging causes deformation, which seriously affects the product quality when it is severe;

[0010] (7)The wire management of the photovoltaic panel is chaotic. Generally, the wires are suspended or fixed with cable ties. This not only makes the wires scattered and affects the appearance, but also is likely to cause greater losses when the wires catch fire due to a short circuit. Summary of the Invention

[0011] Aiming at the problems existing in the prior art, the purpose of the present invention is to provide a mounting rack for photovoltaic panels, which can increase the drainage volume of the water tank and reduce the amount of water entering the water tank. The innovative structure is more convenient to install, collects and manages the wires, and effectively supports the photovoltaic panels.

[0012] To solve the above problems, the present invention adopts the following technical solutions: A mounting rack for photovoltaic panels includes the following components: a water tank bracket, which is longitudinally and orderly installed and fixed on a building or the ground. The two ends of the photovoltaic panel are horizontally mounted on the water tank bracket, and the longitudinal splicing seam between two adjacent photovoltaic panels is located above the notch of the water tank of the water tank bracket; a fastener, which fixes the photovoltaic panel on the water tank bracket; a transverse water guide trough, which is horizontally mounted on the water tank bracket. The end of the transverse water guide trough is located above the notch of the water tank of the water tank bracket, and the transverse splicing seam between two adjacent photovoltaic panels is located above the notch of the transverse water guide trough; wherein: the water tank bracket includes a water tank and a fixing structure. A hook structure is arranged on the inner wall of the water tank. The hook structure is a protrusion formed by bending the middle part of the side wall of the water tank horizontally or obliquely downward; the fixing structure is arranged on the outer wall of the water tank. The fixing structure is composed of inclined support plates symmetrically arranged and connected to the edge of the water tank and a side strip connected to the bottom end of the inclined support plate and presenting a horizontal structure. The height of the side strip is not higher than the height of the bottom of the water tank; the fastener is composed of a hook, a pressing strip and a bolt structure. The hook is composed of a cross bridge and hook feet symmetrically arranged at both ends of the cross bridge. The hook feet are hooked on the hook structure. The pressing strip is strip-shaped and includes a limiting groove and a pressing plate. The pressing plates are symmetrically arranged at the two edges of the limiting groove and horizontally extend outwards. The limiting groove is placed in the longitudinal splicing seam.

[0013] Further, the hook structure is an overlapping plate formed by bending and fitting.

[0014] Further, the hook structure is an angle plate bent into an angle shape, and the surface of the angle plate facing downwards is horizontal or points obliquely downwards.

[0015] Further, a support bridge longitudinally mounted on a building or the ground is arranged between two adjacent water tank brackets, and the height of the support bridge is the same as the height of the water tank.

[0016] Further, the fixing structure is bent and made from a whole zinc-aluminum-magnesium plate by a cold pressing process.

[0017] Further, both ends of the transverse water guide groove are bent downward to form limiting hooks, and the distance between the bending lines of the limiting hooks is equal to the distance between the water trough edges of two adjacent water trough brackets.

[0018] Further, a middle part of the bottom of the transverse water guide groove bulges to form a diversion inclined plane pointing from the middle part of the transverse water guide groove to both ends of the transverse water guide groove.

[0019] Further, a limiting protrusion is arranged in the middle of the cross bridge, and the width of the limiting protrusion is the same as the width of the limiting groove.

[0020] Further, the bolt structure is a self-drilling screw.

[0021] Further, the support bridge frame is of a square pipe structure, and a wire passing groove for passing wires is arranged on the side surface of the square pipe located above.

[0022] Compared with the prior art, the advantages of the present invention are as follows:

[0023] (1) Through redesign, the new water trough bracket has a larger drainage volume, can quickly drain water, and will not cause the water level in the water trough to rise too high and leak from the gap between the photovoltaic panel and the water trough bracket, resulting in rain leakage.

[0024] (2) The new type of hook is a part of the fastener, replacing the "lower clamp block and middle clamp block" of the original fastener, and is used in cooperation with the hook structure of the water trough to achieve rapid installation and reduce labor costs.

[0025] (3) The combined design of the new water trough and the new hook not only increases the cross-sectional area of the water trough to improve the drainage volume, but also reduces the cross-sectional area of the fastener, reducing the blockage of the fastener to the water flow. The breakthroughs in both aspects have increased the drainage volume of the new water trough by more than 2.5 times.

[0026] (4) Compared with a single pressing block, the strip-shaped pressing strip has a simple production process and lower cost. The original "upper pressing block" is point-mounted, which has higher requirements for the thickness of the material of the pressing block itself. The original upper pressing block was made by cutting a 3mm-thick customized aluminum alloy profile in the factory, and there was a lot of waste during cutting, with high cost and serious waste. The new "pressing strip" has a large contact area with the photovoltaic panel and is surface-mounted. While ensuring the installation firmness, the material requirements for the pressing strip are lower, and it can be made by bending a stainless steel plate or a galvanized-aluminum zinc plate through a cold pressing process, with low manufacturing cost.

[0027] (5) The contact stress area between the pressing strip and the photovoltaic panel is larger, the fixation, support and limitation of the photovoltaic panel are more comprehensive, and the installation is more firm; the force is more uniform, which can firmly fix the photovoltaic panel and effectively protect the frame at the same time.

[0028] (6) The batten replaces the original function of the "cover plate". It not only prevents dust and sundries, but also the pressing plate directly adheres to the frame of the photovoltaic panel, solving the problem of the gap between the original cover plate and the photovoltaic panel and preventing rainwater on the photovoltaic panel from directly flowing into the main water trough. The joint between the rubber strip and the batten set on the pressing plate further increases the water blocking effect. Except for the water flow in the main water trough introduced by the transverse water trough through the transverse gap of the photovoltaic panel, there is no other water flow in the main water trough, greatly reducing the drainage burden of the main water trough and preventing water leakage caused by excessive water volume in the water trough overflowing.

[0029] (7) The long strip-shaped batten can be installed and fixed by bolts in cooperation with the fasteners "lower clamping block, middle clamping block" in the original patent, or can be installed and fixed with the newly designed bracket structure by self-tapping screws. The long strip-shaped batten has the same length as the bracket, is convenient for installation, saves labor, is easy to take during high-altitude operation, and is not easy to fall.

[0030] (8) It is made by bending a magnesium-aluminum-zinc plate through a cold pressing process, reducing the process cost and material cost. Compared with the structure of the cover plate + upper pressing block, it saves all the material and production costs of the cover plate, saves part of the material cost, and saves the cutting cost of the original "upper pressing block" and the process cost of making the "snap structure" for fixing the "cover plate".

[0031] (9) The design of the support bridge can effectively support the photovoltaic panel, prevent the photovoltaic panel from deforming and affecting its service life and quality. The wire passes through the slot of the support bridge, with hidden wiring, which is not only beautiful, but also the metal square tube has the effect of flame retardancy and preventing the spread of fire to the wire. Brief Description of the Drawings

[0032] Figure 1 It is a three-dimensional structure schematic diagram of the invention;

[0033] Figure 2 It is a three-dimensional structure schematic diagram of the installation structure of the invention and the photovoltaic panel;

[0034] Figure 3 It is a schematic diagram of the installation structure of the water trough support, fasteners and photovoltaic panel of the invention;

[0035] Figure 4 It is a schematic diagram of the laminated plate type water trough support and the hook structure of the invention;

[0036] Figure 5 It is a schematic diagram of the angle plate type water trough support and the hook structure of the invention;

[0037] Figure 6 It is a three-dimensional structure schematic diagram of the angle plate type water trough support and the hook of the invention;

[0038] Figure 7 It is a three-dimensional structure schematic diagram of the batten of the invention;

[0039] Figure 8 Schematic cross-sectional structure diagram of the pressing strip of the present invention;

[0040] Figure 9 Schematic three-dimensional structure diagram of the transverse water guide groove of the present invention;

[0041] Figure 10 Schematic three-dimensional structure diagram of the support bridge of the present invention.

[0042] Description of the reference numerals in the figure:

[0043] 1. Water tank support, 2. Fastener, 3. Transverse water guide groove, 4. Support bridge, 5. Purlin, 11. Water tank, 12. Fixed structure, 13. Hook structure, 21. Hook, 22. Pressing strip, 23. Bolt structure, 31. Limit hook, 32. Flow guiding slope, 41. Wire trough, 121. Inclined support surface, 122. Edge strip, 211. Cross bridge, 212. Hook foot, 213. Limit projection, 221. Limit groove, 222. Pressing plate. Specific implementation mode

[0044] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention;

[0045] Embodiment 1:

[0046] A photovoltaic panel mounting rack comprises the following components: a water trough bracket 1, longitudinally and orderly installed and fixed on a building or the ground. Both ends of the photovoltaic panel 10 are horizontally mounted on the water trough bracket 1, and the longitudinal splicing seam between two adjacent photovoltaic panels 10 is located above the notch of the water trough 11 of the water trough bracket 1; a fastener 2 for fixing the photovoltaic panel 10 on the water trough bracket 1; a transverse water guide trough 3, horizontally mounted on the water trough bracket 1. The end of the transverse water guide trough 3 is located above the notch of the water trough 11 of the water trough bracket 1, and the transverse splicing seam between two adjacent photovoltaic panels 10 is located above the notch of the transverse water trough 3. Among them: the water trough bracket 1 includes a water trough 11 and a fixing structure 12. A hook structure 13 is arranged on the inner wall of the water trough 11. The hook structure 13 is a protrusion formed by bending the middle part of the side wall of the water trough 11 horizontally or obliquely downward; the fixing structure 12 is arranged on the outer wall of the water trough 11. The fixing structure 12 is composed of a diagonal brace plate 121 symmetrically arranged and connected to the edge of the water trough and a side strip 122 connected to the bottom end of the diagonal brace plate and presenting a horizontal structure. The height of the side strip 122 is not higher than the height of the bottom of the water trough 11; the fastener 2 is composed of a hook 21, a pressing strip 22 and a bolt structure 23. The hook 21 is composed of a cross bridge 211 and hook feet 212 symmetrically arranged at both ends of the cross bridge. The hook feet 212 are hooked on the hook structure 13. The pressing strip 22 is strip-shaped and includes a limiting groove 221 and a pressing plate 222. The pressing plates 222 are symmetrically arranged at both edges of the limiting groove 221 and horizontally extend outward. The limiting groove 221 is placed in the longitudinal splicing seam.

[0047] Further, the hook structure 13 is an overlapping plate formed by bending and fitting.

[0048] Further, the hook structure 13 is an angle plate bent into an angular shape, and the inner surface of the angle plate located below is horizontal or points obliquely downward.

[0049] Further, a support bridge 4 longitudinally mounted on a building or the ground is provided in the middle between two adjacent water trough brackets 1, and the height of the support bridge 4 is the same as the height of the water trough.

[0050] Further, the fixing structure 12 is bent and made from a whole zinc-aluminum-magnesium plate by a cold pressing process.

[0051] Further, both ends of the transverse water guide trough 3 are bent downward to form limiting hooks 31, and the distance between the bending lines of the limiting hooks 31 is equal to the distance between the edges of the water troughs of two adjacent water trough brackets 1.

[0052] Further, a flow guiding inclined surface pointing from the middle of the transverse water guide trough 3 to both ends of the transverse water guide trough 3 is formed by the middle part of the bottom of the transverse water guide trough 3 protruding.

[0053] Further, a limiting protrusion 213 is provided in the middle of the cross-bridge 211, and the width of the limiting protrusion 213 is the same as the width of the limiting groove 221.

[0054] Further, the bolt structure 23 is a self-drilling screw.

[0055] Further, the support bridge 4 is of a square tube structure, and a wire passing groove 41 for threading is provided on the side surface of the square tube located above.

[0056] Embodiment 2:

[0057] (1) Fabrication of the water tank: Combining the experience of the previous integrated water tank of the company, an integrated water tank bracket that can be made by cold pressing and bending technology is designed. On the basis of the middle square water tank 11, an acute-angled protrusion formed by bending the middle part of its side wall inward and downward forms a hook structure 13, and the side wall at the edge of the water tank is bent outward and downward and then extended to be flush with the bottom of the water tank / extended beyond and then bent and extended horizontally outward to form a fixing structure 12. The structural design of this water tank bracket 1 can be made of a whole magnesium-aluminum-zinc plate through the cold pressing and bending process, with low production cost. Through the "M" type structure, the supportability, stability and firmness of the water tank are strengthened. Compared with the customized aluminum alloy profile water tank in the market, the material cost is greatly reduced.

[0058] (2) Fabrication of the hook: The structure of the hook 21 matches the shape of the hook structure 13 of the water tank bracket 1. It is symmetrically bent into a middle cross-bridge 211 and two side hook feet 212 through the cold pressing and bending process, and then cut into hooks of the required specifications through a cutting mechanism, as follows: short specification: 2 - 5 cm, multiple can be installed on an average one-meter-long water tank bracket, and 1 bolt structure is installed on each hook; medium specification: 10 - 15 cm, 2 - 3 points can be installed on an average one-meter-long water tank bracket, and 1 - 2 bolt structures are installed on each hook; long specification: 20 - 40 cm, 1 - 2 points can be installed on an average one-meter-long water tank bracket, and 2 bolt structures are installed on each hook. After the tensile strength test, the above installation modes all meet the tensile strength test requirements of 100 - 150 kg in the industry. Among them, the long specification has the best result, reaching a tensile strength test result of 178 kg, exceeding the industry standard.

[0059] (3) Fabrication of the integrated pressing strip 22: It is made by bending a strip-shaped magnesium-aluminum-zinc plate through the cold pressing and bending process, and cut into a long strip-shaped pressing strip with the same length as the water tank bracket through a cutting mechanism, which is convenient for transportation together with the water tank bracket. If it is fabricated on site, it can be directly fabricated according to the longitudinal length of the single inclined plane of the roof. In this way, only one complete pressing strip needs to be installed at the longitudinal splicing seam of a single photovoltaic panel. Adhesive strips 223 can be pasted on the lower surfaces of the two side pressing plates 222 of the pressing strip 22 as needed.

[0060] (4)Fabrication of the support bridge 4: A strip-shaped magnesium-aluminum-zinc plate is bent into a square tube through a cold pressing and bending process. A gap of 0.5 - 1 cm (i.e., the wire threading groove) is left at the splicing position of the two side edges of the magnesium-aluminum-zinc plate, and the support bridge 4 with the same length as the water tank support 1 is cut by a truncation mechanism.

[0061] (5)Fabrication of the transverse water guide groove 3: The magnesium-aluminum-zinc plate is bent into a square groove through a cold pressing and bending process, and is cut into the transverse water guide groove 3 with the same transverse length as the photovoltaic panel by a truncation mechanism. Then, the two ends of the transverse water guide groove are bent downward by a bending machine to form a limit hook structure 31, and the bottom center of the transverse water guide groove is slightly bent from bottom to top to form a diversion slope 32.

[0062] (6)The hook is composed of a cross bridge and hook feet symmetrically arranged at both ends of the cross bridge. The hook feet are used in cooperation with the hook structure, and the cross bridge clamps and fixes the photovoltaic panel through a bolt structure with the "upper pressing block (original patent)" above. A screw rod perpendicular to the cross bridge can be arranged on the cross bridge, and the "upper pressing block" and the hook are tightened and fixed through a nut; or self-tapping screws can be used to screw down from the "upper pressing block" above and then pass through the cross bridge to tighten and fix the two.

[0063] Example 3:

[0064] Installation of the photovoltaic panel:

[0065] Install the fabricated water tank on the purlin 5 of the top frame of the standardized factory building (generally, a frame will also be built when installing photovoltaic panels on the ground), replacing the original ordinary roof. For the high requirement of roof waterproofing, the structure of the water tank in the present invention is redesigned to increase the drainage volume and reduce the water inflow volume, completely solving the problem of leakage caused by insufficient drainage volume of the water tank.

[0066] (1)Installation of the water tank: The fabricated water tank is longitudinally installed on the purlin of the factory building roof, and the side strip of the water tank is installed and fixed on the roof purlin through self-drilling screws;

[0067] (2)Installation of the hook in the fastener: Then, multiple hooks are inserted into the water tank from one side of the water tank, so that the hook feet of the hooks are located below the hook structure, and then the hooks are adjusted to the appropriate positions;

[0068] (3)Installation of the support bridge: The support bridge is longitudinally placed on the roof purlin parallel to the water tank, and the distance from the adjacent two water tanks is equal;

[0069] (4)Then, the photovoltaic panel is erected on the adjacent two water tanks. At this time, marks are made at the positions of the hooks on the photovoltaic panel, and the wires of the photovoltaic panel are placed into the support bridge;

[0070] (5) Place the horizontal water guide trough under the horizontal frame of the photovoltaic panel, and make the inner side wall of the horizontal water guide trough fit with the inner side wall of the frame, that is, place the horizontal frames of two adjacent photovoltaic panels in the trough of one horizontal water guide trough;

[0071] (6) Place the limiting groove of the pressing strip longitudinally in the longitudinal splicing seam between the photovoltaic panels. The pressing plate of the pressing strip is located above the frame of the photovoltaic panel. According to the marks on the photovoltaic panel, use self-drilling screws to drill down from the bottom of the limiting groove of the pressing strip until it passes through the cross bridge of the lower hook and continues to tighten until the hook foot of the hook hooks the hook structure of the water trough, so that the pressing strip, photovoltaic panel, hook and water trough are all locked to complete the fixation.

[0072] The above is only the preferred specific embodiment of the present invention; however, the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its improved concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A photovoltaic panel mounting rack, characterized in that: It includes the following components: A water tank support, longitudinally and orderly installed and fixed on a building or the ground. The two ends of the photovoltaic panel are horizontally mounted on the water tank support, and the longitudinal splicing seam between two adjacent photovoltaic panels is located above the notch of the water tank of the water tank support; Fasteners, which fix the photovoltaic panel on the water tank support; A transverse water guide trough, horizontally mounted on the water tank support. The end of the transverse water guide trough is located above the notch of the water tank of the water tank support, and the transverse splicing seam between two adjacent photovoltaic panels is located above the notch of the transverse water guide trough; Wherein: the water tank support includes a water tank and a fixing structure. A hook structure is arranged on the inner wall of the water tank. The hook structure is a protrusion formed by bending the middle part of the side wall of the water tank horizontally or obliquely downward; The fixing structure is arranged on the outer wall of the water tank. The fixing structure is composed of inclined support plates symmetrically arranged and connected to the edge of the water tank and a side strip connected to the bottom end of the inclined support plate and presenting a horizontal structure. The height of the side strip is not higher than the height of the bottom of the water tank; The fastener is composed of a hook, a pressing strip and a bolt structure. The hook is composed of a cross bridge and hook feet symmetrically arranged at both ends of the cross bridge. The hook feet are hooked on the hook structure. The pressing strip is strip-shaped and includes a limiting groove and a pressing plate. The pressing plates are symmetrically arranged at the two edges of the limiting groove and horizontally expand outwards. The limiting groove is placed in the longitudinal splicing seam; The hook structure is an angle plate bent into an angular shape, and the inward-facing surface of the angle plate located below is horizontal or points obliquely downward; The fixing structure is bent and made from a whole zinc-aluminum-magnesium plate by a cold pressing process.

2. The photovoltaic panel mounting rack according to claim 1, characterized in that: A support bridge longitudinally mounted on a building or the ground is provided between two adjacent water tank supports, and the height of the support bridge is the same as the height of the water tank.

3. The photovoltaic panel mounting rack according to claim 1, characterized in that: The two ends of the transverse water guide trough are bent downward to form limiting hooks, and the distance between the bending lines of the limiting hooks is equal to the distance between the edges of the water tanks of two adjacent water tank supports.

4. The photovoltaic panel mounting rack according to claim 1, characterized in that: A guiding slope pointing from the middle of the transverse water guide trough to both ends of the transverse water guide trough is formed by the middle part of the bottom of the transverse water guide trough protruding.

5. The photovoltaic panel mounting rack according to claim 1, characterized in that: A limiting protrusion is arranged in the middle of the cross bridge, and the width of the limiting protrusion is the same as the width of the limiting groove.

6. The photovoltaic panel mounting rack according to claim 1, characterized in that: The bolt structure is a self-drilling screw.

7. The photovoltaic panel mounting rack according to claim 2, characterized in that: The support bridge is a square tube structure, and a wire passing groove for threading is arranged on the side surface of the square tube located above.

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