Photovoltaic panel for building external wall

Abstract

The utility model discloses a photovoltaic panel for a building outer wall, which comprises a support frame, the support frame is fixedly arranged on the building outer wall through bolts, a photovoltaic panel assembly is fixedly arranged on the support frame, the support frame comprises two triangular frames, a telescopic assembly is connected between the two triangular frames, and the telescopic assembly is fixedly arranged on the support frame. A water cooling plate is fixedly arranged on the rear side face of the photovoltaic panel assembly, the interior of the water cooling plate is hollow, the upper end and the lower end of the water cooling plate are provided with a water outlet and a water inlet respectively, the water inlet is communicated with an external water supply system through a hose, and the water outlet is communicated with a self-cleaning mechanism. The water outlet of the water cooling plate is communicated with the self-cleaning mechanism, warm water cooled by the water cooling plate is used for spraying and cleaning the photovoltaic panel, the heat dissipation function and the self-cleaning function are organically combined, the heat dissipation problem of the photovoltaic panel is solved, and stains on the surface can be cleaned in time.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic panel device technology, specifically to a photovoltaic panel for building exterior walls. Background Technology

[0002] With increasing environmental awareness and growing demand for clean energy, building exterior photovoltaic (PV) panels, as devices that convert solar energy into electricity, have been widely used in the construction industry. They not only effectively utilize building exterior space for power generation but also offer numerous advantages such as reducing building energy consumption and achieving energy self-sufficiency.

[0003] However, traditional building exterior photovoltaic (PV) panels have some significant drawbacks. In terms of self-cleaning, they mostly rely on natural rainfall or periodic manual cleaning. The former is limited by weather conditions, while the latter is labor-intensive, resource-intensive, inefficient, and untimely, leading to dust and stain accumulation on the PV panel surface and affecting power generation efficiency. Regarding heat dissipation, they typically rely on simple natural cooling methods. When PV panels generate significant heat during prolonged operation, they cannot effectively dissipate the heat in a timely manner, resulting in performance degradation and a shortened lifespan. More importantly, the self-cleaning and heat dissipation functions of traditional PV panels are independent and not organically integrated, failing to address heat dissipation needs simultaneously while cleaning. Utility Model Content

[0004] (I) Technical Issues

[0005] This utility model provides a photovoltaic panel for building exterior walls, which solves the problem that the self-cleaning and heat dissipation functions of traditional photovoltaic panels are independent and cannot be combined.

[0006] (II) Technical Content

[0007] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows: a photovoltaic panel for building exterior walls, including a support frame, which is fixed to the building exterior wall by bolts, and a photovoltaic panel assembly is fixedly installed on the support frame. The support frame includes two triangular frames, the right-angled sides of which are provided with bolt holes for fixing to the building exterior wall, and the hypotenuses of which are provided with a plurality of equally spaced mounting holes for installing the photovoltaic panel assembly. A telescopic component is provided between the two triangular frames. A water-cooling plate is fixedly installed on the rear side of the photovoltaic panel assembly. The water-cooling plate is hollow inside and has water outlets and inlets at the top and bottom ends, respectively. The water inlet is connected to an external water supply system through a hose, and the water outlet is connected to a self-cleaning mechanism.

[0008] Furthermore, the self-cleaning mechanism includes a spray pipe fixedly installed at the upper end of the photovoltaic panel assembly, and a nozzle at the bottom of the spray pipe spraying water toward the upper surface of the photovoltaic panel assembly. The spray pipe is connected to a water outlet.

[0009] Furthermore, the telescopic assembly includes a cavity and a connector plate respectively fixed inside the two triangular frames, and the connector plate and the cavity are movably connected.

[0010] Furthermore, the plug-in plate is provided with several threaded holes, and the plug cavity is threadedly connected with fixing bolts that are compatible with the threaded holes.

[0011] Furthermore, the photovoltaic panel assembly has several vertically arranged heat sinks fixedly on its rear side, the heat sinks extending into the water-cooled plate and being welded and sealed to the water-cooled plate.

[0012] (III) Technical Effects

[0013] The advantages of this utility model compared with the prior art are:

[0014] 1. Combination of self-cleaning and heat dissipation: A water-cooled plate is fixed to the rear side of the photovoltaic panel. The outlet of the water-cooled plate is connected to the self-cleaning mechanism. The warm water cooled by the water-cooled plate is used to spray and clean the photovoltaic panel, realizing the organic combination of heat dissipation and self-cleaning functions. This not only solves the heat dissipation problem of the photovoltaic panel, but also cleans the surface stains in time.

[0015] 2. Easy to install and adjust: The support frame consists of two triangular frames connected by telescopic components. The cavity and the plug plate of the telescopic components are connected by insertion and fixed by fixing bolts. The size of the support frame can be flexibly adjusted according to the actual size of the building's exterior wall, which facilitates installation and improves the applicability of photovoltaic panels.

[0016] 3. Enhanced heat dissipation: The rear side of the photovoltaic panel module is equipped with several vertically arranged heat dissipation fins, which extend into the water-cooled plate and are welded and sealed, increasing the heat dissipation area and enhancing the heat dissipation capacity of the water-cooled plate. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of a photovoltaic panel for building exterior walls according to this utility model. Figure 1 .

[0018] Figure 2 This is a three-dimensional structural diagram of a photovoltaic panel for building exterior walls according to this utility model. Figure 2 .

[0019] Figure 3 This is a three-dimensional structural diagram of a photovoltaic panel for building exterior walls according to this utility model. Figure 3 .

[0020] Figure 4 This is a schematic diagram of the main structure of a photovoltaic panel for building exterior walls according to this utility model.

[0021] Figure 5 This is a left-side structural schematic diagram of a photovoltaic panel for building exterior walls according to this utility model.

[0022] Figure 6 This is a schematic diagram of the cross-sectional structure of a photovoltaic panel for building exterior walls according to this utility model.

[0023] As shown in the figure: 1. Support frame; 2. Photovoltaic panel assembly; 3. Triangular frame; 4. Bolt holes; 5. Mounting holes; 6. Telescopic assembly; 7. Water-cooled plate; 8. Water outlet; 9. Water inlet; 10. Hose; 11. Self-cleaning mechanism; 12. Spray pipe; 13. Spray head; 14. Insertion cavity; 15. Insertion plate; 16. Threaded hole; 17. Fixing bolt; 18. Heat sink. Detailed Implementation

[0024] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", "center", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation structure and operation. Therefore, they should not be construed as limitations on this utility model.

[0025] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "provided with," "installed," "connected," "linked," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] The present invention will now be described in further detail with reference to the accompanying drawings.

[0027] Combined with appendix Figure 1 To be continued Figure 6 A photovoltaic panel for building exterior walls includes a support frame 1, which is fixed to the building exterior wall by bolts. A photovoltaic panel assembly 2 is fixedly installed on the support frame 1. The support frame 1 includes two triangular frames 3. The right-angled sides of the triangular frames 3 are provided with bolt holes 4 for fixing to the building exterior wall. The hypotenuses of the triangular frames 3 are provided with a plurality of equally spaced mounting holes 5 for installing the photovoltaic panel assembly 2. An expansion joint 6 is connected between the two triangular frames 3. A water-cooled plate 7 is fixedly installed on the rear side of the photovoltaic panel assembly 2. The water-cooled plate 7 is hollow inside and has water outlets 8 and inlets 9 at its upper and lower ends, respectively. The water inlets 9 are connected to an external water supply system through a hose 10, and the water outlets 8 are connected to a self-cleaning mechanism 11.

[0028] In this embodiment, as a preferred technical solution, the self-cleaning mechanism 11 includes a spray pipe 12 fixedly disposed at the upper end of the photovoltaic panel assembly 2, and a nozzle 13 at the bottom of the spray pipe 12 spraying water toward the upper surface of the photovoltaic panel assembly 2. The spray pipe 12 is connected to the water outlet 8.

[0029] In this embodiment, as a preferred technical solution, the telescopic component 6 includes an insertion cavity 14 and an insertion plate 15 respectively fixedly disposed inside the two triangular frame 3, and the insertion plate 15 and the insertion cavity 14 are movably connected. The insertion plate 15 is provided with a plurality of threaded holes 16, and the insertion cavity 14 is threadedly connected with a fixing bolt 17 adapted to the threaded holes 16.

[0030] In this embodiment, as a preferred technical solution, a plurality of vertically arranged heat sinks 18 are fixedly provided on the rear side of the photovoltaic panel assembly 2. The heat sinks 18 extend into the interior of the water-cooled plate 7 and are welded and sealed to the water-cooled plate 7.

[0031] The working principle of this utility model is as follows: the photovoltaic panel assembly 2 is fixed to the exterior wall of the building using the support frame 1. When the photovoltaic panel assembly 2 is working, it generates heat and exchanges heat with the water-cooled plate 7 fixedly connected to its rear side. The water in the water-cooled plate 7 absorbs heat and becomes heated. The heated water flows into the self-cleaning mechanism 11 through the outlet 8, thereby achieving heat dissipation and surface cleaning of the photovoltaic panel assembly 2. At the same time, the telescopic component 6 of the support frame 1 can be adjusted in size according to actual needs, which facilitates installation.

[0032] The working process of this utility model is as follows:

[0033] 1. Installation and Fixing: Secure the support frame 1 to the building's exterior wall using bolts through the bolt holes 4 on the right-angled side of the triangular frame 3. Adjust the telescopic component 6 according to the actual dimensions of the photovoltaic panel assembly; that is, pull the plug-in plate 15 to slide it within the socket 14. After adjusting to the appropriate position, tighten the fixing bolts 17 through the socket 14 and into the corresponding threaded holes 16 on the plug-in plate 15 to complete the fixing of the support frame 1. Next, install the photovoltaic panel assembly 2 onto the hypotenuse of the triangular frame 3 on the support frame 1 through the mounting holes 5.

[0034] 2. Water source connection: The bottom of the hose 10 is connected to the solenoid valve and the high-pressure water pump to inject water into the inner cavity of the water-cooled plate 7 to ensure that there is always water inside (a water level sensor can be installed in the water-cooled plate to detect the water level inside and ensure that the water level is not lower than a certain value, which can be achieved by automatically controlling the start and stop of the solenoid valve and the water pump through an external PLC controller).

[0035] 3. Heat dissipation process: The photovoltaic panel module 2 generates heat during operation, which is transferred to the water-cooled plate 7 that is tightly attached to it. The water-cooled plate 7 is hollow inside and has several vertically arranged and welded heat dissipation fins 18 inside, which increases the contact area with water and enhances the heat exchange efficiency. The cold water absorbs the heat transferred from the photovoltaic panel module 2 and becomes warm water.

[0036] 4. Self-cleaning process: Water supply continues, and the water inside the water-cooled plate overflows upwards. The warm water, after absorbing heat, flows out from the outlet 8 and enters the self-cleaning mechanism 11. The spray pipe 12 in the self-cleaning mechanism 11 is connected to the outlet 8. After the warm water flows into the spray pipe 12, it is sprayed out through the nozzle 13 at the bottom facing the upper surface of the photovoltaic panel 2 to spray and clean the surface of the photovoltaic panel 2, removing dust, stains, etc., and ensuring the power generation efficiency of the photovoltaic panel 2.

[0037] The above structure enables heat exchange during cleaning, achieving an organic combination of cleaning and heat dissipation.

[0038] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A photovoltaic panel for building exterior walls, comprising a support frame (1), the support frame (1) being fixedly mounted to the building exterior wall by bolts, and a photovoltaic panel assembly (2) being fixedly installed on the support frame (1), characterized in that: The support frame (1) includes two triangular frames (3). The right-angled side of the triangular frame (3) is provided with bolt holes (4) for fixing to the building exterior wall. The hypotenuse of the triangular frame (3) is provided with a number of equally spaced mounting holes (5) for installing photovoltaic panel components (2). A telescopic component (6) is connected between the two triangular frames (3). A water-cooled plate (7) is fixed on the rear side of the photovoltaic panel component (2). The water-cooled plate (7) is hollow inside and has water outlets (8) and inlets (9) at the top and bottom ends respectively. The inlets (9) are connected to an external water supply system through a hose (10). The outlets (8) are connected to a self-cleaning mechanism (11).

2. A photovoltaic panel for building exterior walls according to claim 1, characterized in that: The self-cleaning mechanism (11) includes a spray pipe (12) fixedly installed at the upper end of the photovoltaic panel assembly (2). The bottom of the spray pipe (12) is provided with a nozzle (13) that sprays water toward the upper surface of the photovoltaic panel assembly (2). The spray pipe (12) is connected to the water outlet (8).

3. A photovoltaic panel for building exterior walls according to claim 1, characterized in that: The telescopic component (6) includes a cavity (14) and a connector plate (15) respectively fixed inside the two triangular frames (3), and the connector plate (15) and the cavity (14) are connected by insertion.

4. A photovoltaic panel for building exterior walls according to claim 3, characterized in that: The plug plate (15) is provided with a plurality of threaded holes (16), and the plug cavity (14) is provided with a fixing bolt (17) that is compatible with the threaded holes (16).

5. A photovoltaic panel for building exterior walls according to claim 1, characterized in that: The photovoltaic panel assembly (2) has several vertically arranged heat sinks (18) fixed on its rear side. The heat sinks (18) extend into the water-cooled plate (7) and are welded and sealed to the water-cooled plate (7).

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