Photovoltaic power station and water tank fixing node structure thereof

Abstract

The utility model discloses a photovoltaic power station and a water tank fixing node structure thereof, and the water tank fixing node structure comprises a purline, photovoltaic assemblies which are disposed above the purline side by side, a water tank disposed below a gap between two adjacent photovoltaic assemblies, and a pressing plate assembly which is used for fixing the frames of the photovoltaic assemblies and the water tank to the purline. The pressing plate assembly comprises an upper pressing plate, the upper pressing plate is pressed on the frame and enables the frame to tightly press the water tank, and an anti-loosening structure is arranged among the upper pressing plate, the frame and the water tank. According to the utility model, through the anti-loosening structure, the connection surfaces of the upper pressing plate, the frame and the water tank are prevented from loosening and slipping, so that connection node failure, influence on stable operation of a photovoltaic power station and potential safety hazards are avoided, and the operation and maintenance cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic technology. Background Art

[0002] There are various different connection methods between photovoltaic modules and brackets. Among them, the snap-fastening and pressing plate fixing method is popular among the public due to its simple construction and low cost, and is widely used in module installation with a relatively high penetration rate. However, since this connection uses the form of the pressing plate assembly tightly holding the purlin, only the displacement of the pressing plate is restricted, and other parts need to transmit force through the friction between each contact surface. Especially at the water tank fixing node, it is necessary to rely on the acting force of the pressing plate assembly to fix the module frame and the water tank on the purlin at the same time. Under the influence of multiple factors such as low construction quality, reciprocating vibration of wind load, rain infiltration and erosion, and thermal expansion and contraction, the loosening and slipping of each connection surface will inevitably occur, resulting in the failure of the connection node. If not maintained in time, the parts will be loosened at worst, and the module will collapse at worst, bringing potential hazards to the stable operation of the module and the safety of people and property below. Summary of the Utility Model

[0003] The purpose to be achieved by the utility model is to provide a photovoltaic power station and its water tank fixing node structure, which solves the problem that the water tank fixing node in the prior art is prone to failure.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] Firstly, a water tank fixing node structure of a photovoltaic power station is provided, including a purlin, photovoltaic modules arranged side by side above the purlin, a water tank arranged below the gap between two adjacent photovoltaic modules, and a pressing plate assembly for fixing the frame of the photovoltaic module and the water tank on the purlin. The pressing plate assembly includes an upper pressing plate, and the upper pressing plate is pressed on the frame and presses the frame against the water tank. An anti-loosening structure is arranged between the upper pressing plate, the frame and the water tank.

[0006] Preferably, the anti-loosening structure includes a concave-convex engagement structure arranged between the upper pressing plate, the frame and the water tank.

[0007] Preferably, the concave-convex engagement structure includes concave-convex stripes arranged on the upper and lower surfaces of the frame, the lower surface of the upper pressing plate and the upper surface of the water tank.

[0008] Preferably, the extending direction of the concave-convex stripes is perpendicular to the extending direction of the water tank, and several concave-convex stripes are arranged along the extending direction of the water tank.

[0009] Preferably, the water tank is of a U-shaped structure, the bottom of the frame is arranged on the inner bottom wall of the water tank, the bottom of the frame is provided with an extending edge extending towards the inner side of the photovoltaic module, the upper pressing plate is pressed on the extending edge, and concave-convex stripes are arranged on the lower surface of the bottom of the frame and the upper surface of the extending edge.

[0010] Preferably, there is a flow-guiding gap between the bottom outer edge of the frame and the side wall of the water tank.

[0011] Preferably, the pressure plate assembly further includes a lower pressure plate disposed below the purlin and pressure plate bolts connecting the upper pressure plate and the lower pressure plate.

[0012] Preferably, the pressure plate bolts are U-shaped bolts, and / or the upper pressure plate includes a pressing portion pressed on the extended edge, a bridge portion spanning the side wall of the water tank, and a supporting portion pressed on the purlin, and the bridge portion is connected to the pressure plate bolts.

[0013] Preferably, the water tank is made of aluminum alloy, stainless steel or galvanized aluminum-magnesium material; and / or the water tank is a sheet metal part.

[0014] In addition, a photovoltaic power station is also provided, comprising the water tank fixed node structure.

[0015] The utility model adopts the above technical solution and has the following beneficial effects:

[0016] 1. The upper pressure plate is pressed on the frame and the frame is pressed against the water tank. In this way, the water tank is fixed at the node to prevent deformation of the water tank and to reliably fix the frame of the photovoltaic module. This can not only ensure normal drainage, but also prevent the loosening of the photovoltaic module from affecting the reliable operation of the photovoltaic power station, thereby improving the reliability of the operation of the photovoltaic power station and extending the service life of the photovoltaic power station.

[0017] In addition, the anti-loosening structure between the upper pressure plate, frame and the connecting surfaces of the water tank is used to improve the overall stability of the water tank fixing node, avoid loosening and slipping, which may cause failure of the connection node, affect the stable operation of the photovoltaic power station and bring safety hazards, and reduce operation and maintenance costs.

[0018] 2. The anti-loosening structure includes a concave-convex bite structure between the upper pressure plate, the frame and the sink. After the pressure plate assembly is fixed, the concave-convex bite structure between the upper pressure plate, the frame and the sink is firmly bitten, which can enhance the biting ability of the connection part and avoid loosening and slippage between the connection surfaces of the upper pressure plate, the frame and the sink.

[0019] 3. The concave-convex interlocking structure includes concave-convex stripes on the upper and lower surfaces of the frame, the lower surface of the upper pressure plate and the upper surface of the sink. The concave-convex stripe structure is simple to make and convenient to construct. It only needs to be stamped or polished on the basis of the existing finished product. It does not increase the difficulty of construction and economic cost, and can conveniently reinforce the connection nodes between the upper pressure plate, the frame and the sink.

[0020] 4. The extending direction (length direction) of the concave-convex stripes is perpendicular to the extending direction of the water trough, that is, horizontally extending. At the same time, several concave-convex stripes are arranged along the extending direction of the water trough. This is because the photovoltaic modules are arranged obliquely longitudinally and are most likely to have longitudinal slippage. Therefore, the concave-convex stripes are used to prevent longitudinal slippage, and the design of multiple concave-convex stripes can ensure the anti-loosening effect.

[0021] 5. The water trough adopts a common U-shaped structure, which has a simple structure and low cost. The bottom of the frame is arranged on the inner bottom wall of the water trough, that is, the frame is pressed against the water trough. At the same time, the upper pressing plate is pressed on the extending edge of the frame, and the frame and the water trough can be fixed to the purlin through the pressing plate assembly.

[0022] 6. Since there is a diversion gap between the outer bottom edge of the frame and the side wall of the water trough, it is ensured that the water trough still has sufficient water diversion capacity at the fixed node part, avoiding affecting the water diversion function of the water trough.

[0023] 7. The pressing plate assembly is fixed by a U-shaped bolt, which is convenient for installation.

[0024] 8. In the structure of the upper pressing plate, the pressing part is pressed on the extending edge of the frame, the bridging part straddles the side wall of the water trough, and the supporting part is pressed on the purlin, so that the water trough can be reliably fixed to the purlin.

[0025] 9. The water trough is made of aluminum alloy, stainless steel or galvanized aluminum-magnesium material, and is preferably a sheet metal part. It not only resists corrosion and prolongs the service life, but also has light weight and high strength, and can also be mass-produced to reduce the processing cost.

[0026] These features and advantages of the present utility model will be disclosed in detail in the following specific embodiments and drawings. Brief Description of the Drawings

[0027] The present utility model will be further described below in conjunction with the drawings:

[0028] Figure 1 It is a schematic diagram of the overall structure of the water trough fixed node structure in the present utility model;

[0029] Figure 2 It is the front view of the water trough fixed node structure in the present utility model;

[0030] Figure 3 It is a schematic diagram of the structure of the water trough in the present utility model;

[0031] Figure 4 It is a schematic diagram of the connection part between the upper pressing plate, the frame and the water trough in the present utility model;

[0032] Reference signs: photovoltaic module - 1, frame - 2, extension edge - 21, first concavo-convex stripe - 201, second concavo-convex stripe - 202, upper pressing plate - 3, third concavo-convex stripe - 301, pressing part - 31, bridging part - 32, supporting part - 33, water tank - 4, fourth concavo-convex stripe - 401, U-shaped screw - 5, purlin - 6, lower pressing plate - 7, nut - 8, anti-loosening structure - 9. Detailed implementation manners

[0033] The technical solutions of the embodiments of the present invention will be explained and described below with reference to the drawings of the embodiments of the present invention. However, the following embodiments are only the preferred embodiments of the present invention and not all of them. Based on the embodiments in the implementation manners, other embodiments obtained by those skilled in the art without creative efforts all fall within the protection scope of the present invention.

[0034] Those skilled in the art can understand that, without conflict, the features in the following embodiments and implementation manners can be combined with each other.

[0035] The terms used in the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. For example, the terms such as "upper", "lower", "lateral", "longitudinal", etc. indicating the orientation or position relationship are only based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device / element referred to must have a specific orientation or be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present invention.

[0036] In the present invention, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "over" and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or only means that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "under" the second feature includes that the first feature is directly below and obliquely below the second feature, or only means that the horizontal height of the first feature is lower than that of the second feature.

[0037] In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first", "second" may explicitly or implicitly include at least one of such features.

[0038] It should be understood that in the present utility model, "including" and "having" and any variations thereof are intended to cover non-exclusive inclusion. It should be understood that in the present utility model, "a plurality of" means two or more.

[0039] The following specific embodiments are used to describe the technical solution of the utility model in detail. The following specific embodiments can be combined or replaced with each other according to actual conditions, and the same or similar concepts or processes may not be described in detail in some embodiments.

[0040] like Figures 1 to 4 As shown, the utility model provides a photovoltaic power station water tank fixing node structure, including a purlin 6, a plurality of photovoltaic modules 1 installed side by side above the purlin 6, a water tank 4 arranged below the gap between two adjacent photovoltaic modules 1, and a pressure plate assembly for fixing the frame 2 of the photovoltaic module and the water tank 4 to the purlin 6, the pressure plate assembly including an upper pressure plate 3, the upper pressure plate 3 is pressed on the frame 2 and the frame 2 presses the water tank 4 tightly.

[0041] Here, the purlin extension direction can be set to be horizontal, the water tank extension direction can be set to be longitudinal, and the water tank is perpendicular to the purlin. Since the photovoltaic components are arranged obliquely in the longitudinal direction, the water tank extends obliquely downward to facilitate water conduction.

[0042] It can be understood that a plurality of water trough fixing nodes are provided along the water guiding direction of the water trough, so that the water trough can be fixed at multiple points along the water guiding direction.

[0043] In order to solve the problem in the prior art that the fixing nodes of the water tank are prone to loosening and failure, an anti-loosening structure 9 is provided between the upper pressure plate 3, the frame 2 and the water tank 4.

[0044] In the above technical solution, the upper pressure plate is pressed onto the frame and the frame presses the water tank tightly, so that the water tank can be prevented from being deformed by fixing the node of the water tank, and the frame of the photovoltaic module can be reliably fixed. This can not only ensure normal drainage, but also prevent the loosening of the photovoltaic module from affecting the reliable operation of the photovoltaic power station, thereby improving the reliability of the operation of the photovoltaic power station and extending the service life of the photovoltaic power station.

[0045] In addition, the anti-loosening structure between the upper pressure plate, frame and the connecting surfaces of the water tank is used to improve the overall stability of the water tank fixing node, avoid loosening and slipping, which may cause failure of the connection node, affect the stable operation of the photovoltaic power station and bring safety hazards, and reduce operation and maintenance costs.

[0046] like Figures 2 to 4 As shown, in this embodiment, the anti-loosening structure 9 includes a concave-convex bite structure provided between the upper pressing plate 3, the frame 2 and the water tank 4. In this way, after the pressing plate assembly is fixed, the concave-convex bite structure between the upper pressing plate, the frame and the water tank is firmly engaged, which can enhance the engagement ability of the connection parts and prevent loosening and slippage between the connection surfaces of the upper pressing plate, the frame and the water tank.

[0047] Preferably, the concave-convex engagement structure includes concave-convex stripes provided on the upper and lower surfaces of the frame, the lower surface of the upper pressing plate, and the upper surface of the water trough, that is, the first concave-convex stripes 201 and the second concave-convex stripes 202 correspondingly provided on the upper and lower surfaces of the frame 2, the third concave-convex stripes 301 provided on the lower surface of the upper pressing plate 3, and the fourth concave-convex stripes 401 provided on the upper surface of the water trough 4. This concave-convex stripe structure is simple to manufacture and convenient for construction, and only needs to be stamped or polished on the basis of existing finished products. Without increasing the construction difficulty and economic cost, it can conveniently reinforce the connection nodes between the connection surfaces of the upper pressing plate, the frame and the water trough.

[0048] It can be understood that the extending direction (length direction) of the concave-convex stripes is perpendicular to the extending direction of the water trough, that is, horizontally extending, and at the same time, several concave-convex stripes are arranged along the extending direction (longitudinal direction) of the water trough. This is because the photovoltaic modules are arranged obliquely in the longitudinal direction and are most likely to have longitudinal slip. Therefore, the concave-convex stripes are used to prevent longitudinal slip, and the design of multiple concave-convex stripes can ensure the anti-loosening effect.

[0049] It can be understood that the anti-loosening structure 9 can also be replaced by other structures, such as concave-convex points, friction stripes, adhesive layers, etc.

[0050] In this embodiment, the water trough 4 is of a U-shaped structure, the bottom of the frame 2 is arranged on the inner bottom wall of the water trough, the bottom of the frame 2 is provided with an extension edge 21 extending towards the inner side of the photovoltaic module, the upper pressing plate 3 is pressed on the extension edge 21, and concave-convex stripes are provided on the lower surface of the bottom of the frame 2 and the upper surface of the extension edge. In this way, the water trough can adopt a conventional U-shaped structure without additional design of the water trough structure, which is simple in structure and low in cost. And by pressing the bottom of the frame against the inner bottom wall of the water trough and pressing the upper pressing plate against the extension edge of the frame, the component frame and the water trough can be fixed to the purlin by the pressing plate assembly at the same time.

[0051] Further, referring to the structure of the pressing plate assembly in the prior art, the pressing plate assembly further includes a lower pressing plate 7 arranged below the purlin 6 and a pressing plate bolt connecting the upper pressing plate 3 and the lower pressing plate 7. And the pressing plate bolt is a U-shaped bolt, including a U-shaped screw rod 5 and a nut 8. The upper pressing plate 3 includes a pressing portion 31 matching with the upper extension edge of the frame, a bridge portion 32 striding across the side wall of the water trough, and a supporting portion 33 pressed on the purlin. The bridge portion is connected to the pressing plate bolt. This is convenient for installation and can reliably fix the water trough to the purlin.

[0052] Since the frame presses against the inner bottom wall of the water trough, in order to avoid affecting the water guiding function of the water trough, such as Figure 2As shown, there is a diversion gap between the outer bottom edge of the frame and the edge of the inner bottom wall of the water tank, and the width of the unilateral diversion gap is L. Of course, when designing, the width and height of the water tank should also fully consider the diversion ability. After the pressing part 31 of the upper pressing plate 3 is pressed on the extension edge 21, the pressing part is lower than the top ends of the two side walls of the water tank, so that there is sufficient diversion area in both the height direction and the width direction of the water tank.

[0053] In this embodiment, the water tank 4 is an integrally formed sheet metal part, which can be made of aluminum alloy, stainless steel or galvanized aluminum-magnesium material. It can not only carry out standardized unified production, reduce costs, but also has high structural strength. In addition, it can prevent rust and extend the service life.

[0054] In addition, for other structures, reference is made to the prior art. Among them, the photovoltaic module is installed on the photovoltaic support, and the photovoltaic support is provided with a number of longitudinally extending inclined beams and a number of purlins vertically and cross-fixed above the number of inclined beams.

[0055] In addition to the above preferred embodiments, the present utility model has other implementation manners. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection claimed by the present utility model.

Claims

1. A fixed node structure for a water tank in a photovoltaic power station, comprising a purlin, photovoltaic modules arranged side by side above the purlin, a water tank arranged below the gap between two adjacent photovoltaic modules, and a pressing plate assembly for fixing the frame of the photovoltaic module and the water tank to the purlin. The pressing plate assembly includes an upper pressing plate, and the upper pressing plate is pressed on the frame to press the frame against the water tank. It is characterized in that, A loosening prevention structure is provided between the upper pressing plate, the frame and the water trough.

2. The fixed node structure of a water tank in a photovoltaic power station according to claim 1, characterized in that, The loosening prevention structure includes a concave-convex engagement structure provided between the upper pressing plate, the frame and the water trough.

3. The fixed node structure of the water tank of a photovoltaic power station according to claim 2, characterized in that, The concave-convex engagement structure includes concave-convex stripes provided on the upper and lower surfaces of the frame, the lower surface of the upper pressing plate and the upper surface of the water trough.

4. A fixed node structure of a water tank for a photovoltaic power station according to claim 3, characterized in that, The extending direction of the concave-convex stripes is perpendicular to the extending direction of the water trough, and a plurality of concave-convex stripes are arranged along the extending direction of the water trough.

5. The fixed node structure of a water tank in a photovoltaic power station according to claim 3, characterized in that, The water trough is of a U-shaped structure, the bottom of the frame is arranged on the inner bottom wall of the water trough, the bottom of the frame is provided with an extending edge extending towards the inside of the photovoltaic module, the upper pressing plate is pressed on the extending edge, and concave-convex stripes are provided on the lower surface of the bottom of the frame and the upper surface of the extending edge.

6. The fixed node structure of a water tank of a photovoltaic power station according to claim 5, characterized in that, A diversion gap is provided between the outer side edge of the bottom of the frame and the side wall of the water trough.

7. The fixed node structure of a water tank in a photovoltaic power station according to claim 5, characterized in that, The pressing plate assembly further includes a lower pressing plate arranged below the purlin and a pressing plate bolt connecting the upper pressing plate and the lower pressing plate.

8. The fixed node structure of a water tank in a photovoltaic power station according to claim 7, characterized in that, The pressing plate bolt is a U-shaped bolt, and / or the upper pressing plate includes a pressing portion pressed on the extending edge, a bridging portion spanning the side wall of the water trough, and a supporting portion pressed on the purlin, and the bridging portion is connected to the pressing plate bolt.

9. A fixed node structure of a water tank for a photovoltaic power station according to any one of claims 1 to 8, characterized in that, The water trough is made of aluminum alloy, stainless steel or zinc-aluminum-magnesium plated material; and / or the water trough is a sheet metal part.

10. A photovoltaic power station, characterized in that, It includes the water trough fixing node structure according to any one of claims 1 to 9.

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