A photovoltaic panel

Abstract

The utility model discloses a photovoltaic power generation panel, including laminated power generation unit, frame assembly, backboard protection layer and junction box, frame assembly cladding in laminated power generation unit four around edge, and frame assembly contains integrally formed main frame and gutter, and the inside of main frame is equipped with the flange of joint, backboard protection layer is pasted in backboard layer below and is equipped with heat dissipation convex rib and junction box mounting groove on the surface, the utility model discloses through integrally formed gutter and bottom drain hole on main frame, the shelter of combining the shelter of sundries, can discharge rainwater fast, avoid the water stagnation remains, prevent drain hole blockage simultaneously, and the surface of backboard protection layer is equipped with aluminum alloy fin type heat dissipation convex rib, increases the heat dissipation area, can quickly lead out the heat of photovoltaic cell piece work time generation, effectively reduces cell piece working temperature, reduces the probability of occurrence of hot spot effect, guarantees power generation efficiency stability, prolongs cell piece life.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic panel device technology, specifically to a photovoltaic power generation panel. Background Technology

[0002] Photovoltaic power generation is an important way to utilize clean and renewable energy. The photovoltaic panel, as its core component, has a structural design that directly affects its power generation efficiency, lifespan, and stability. It typically consists of laminated photovoltaic units, frame modules, a backsheet, and a junction box, which respectively perform the functions of energy conversion, fixed protection, environmental isolation, and power output. Traditional photovoltaic panels have significant design flaws:

[0003] First, the frame drainage design is inadequate. Traditional frames are mostly simple right-angled or flat structures, lacking dedicated drainage features. Rainwater easily accumulates, corroding the frame and internal connectors, leading to seal failure and structural loosening. Some frames with drainage channels are easily clogged by debris due to improper placement and lack of obstruction, rendering their drainage function ineffective.

[0004] Secondly, the backsheet has low heat dissipation efficiency. Traditional backsheets are flat structures that rely solely on their own material for heat conduction and dissipation. Due to their limited area, they are unable to effectively dissipate the heat generated by the solar cells during operation. Under high temperatures or strong sunlight, heat accumulation causes the solar cells to overheat, reducing power generation efficiency and triggering hot spot effects, thus shortening their lifespan. Utility Model Content

[0005] (I) Technical Issues

[0006] The present invention aims to provide a photovoltaic power generation panel with efficient drainage and heat dissipation functions to solve the problems of easy water accumulation and corrosion on the frame and insufficient heat dissipation on the back panel of traditional products.

[0007] (II) Technical Content

[0008] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows: a photovoltaic power generation panel, including a laminated power generation unit, a frame assembly, a back sheet protective layer, and a junction box. The laminated power generation unit is composed of a tempered glass layer, a photovoltaic cell layer encapsulated with EVA film, and a back sheet layer, which are hot-pressed together from top to bottom. The frame assembly covers the four edges of the laminated power generation unit and includes an integrally formed main frame and a drainage groove. The inner side of the main frame is provided with a snap-fit ​​flange, which is bonded and fixed to the side of the laminated power generation unit by sealant. The back sheet protective layer is attached to the bottom of the back sheet layer and has heat dissipation ribs and a junction box mounting groove on its surface. The junction box is embedded in the junction box mounting groove.

[0009] Furthermore, the drainage groove is located at the upper edge of the main frame, and a drainage hole is provided at the bottom of the drainage groove.

[0010] Furthermore, the main frame has a stepped cross-section, comprising an upper mounting platform and a lower support base. The support base is provided with bolt countersunk holes and an anti-slip pad is fixed at the bottom.

[0011] Furthermore, the heat dissipation ribs are parallel aluminum alloy fins.

[0012] Furthermore, a baffle for blocking debris is fixedly provided on the upper edge of the main frame and outside the drainage channel.

[0013] (III) Technical Effects

[0014] The advantages of this utility model compared with the prior art are as follows:

[0015] 1. Through the integrated drainage groove and bottom drainage hole on the main frame, combined with the baffle to block debris, rainwater can be drained quickly, avoiding water accumulation and reducing the risk of corrosion of the frame and internal connectors. At the same time, it prevents the drainage hole from becoming clogged, extends the service life of the frame, and improves structural stability.

[0016] 2. The aluminum alloy fin-type heat dissipation ribs on the surface of the back panel protective layer increase the heat dissipation area, which can quickly dissipate the heat generated by the photovoltaic cells during operation, effectively reduce the operating temperature of the cells, reduce the probability of hot spot effect, ensure stable power generation efficiency, and extend the service life of the cells.

[0017] 3. The stepped structure design of the main frame and the addition of anti-slip pads improve installation stability and safety; the junction box embedded in the mounting slot makes the overall structure more compact. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of a photovoltaic power generation panel according to this utility model. Figure 1 .

[0019] Figure 2 This is a three-dimensional structural diagram of a photovoltaic power generation panel according to this utility model. Figure 2 .

[0020] Figure 3 This is a schematic diagram of the main structure of a photovoltaic power generation panel according to this utility model.

[0021] Figure 4 This is a schematic diagram of the cross-sectional structure of a photovoltaic panel according to this utility model. Figure 1 .

[0022] Figure 5 This is a schematic diagram of the cross-sectional structure of a photovoltaic panel according to this utility model. Figure 2 .

[0023] As shown in the figure: 1. Laminated power generation unit; 2. Frame assembly; 3. Back panel protective layer; 4. Junction box; 5. Edge retaining wall; 101. Tempered glass layer; 102. Photovoltaic cell layer; 103. Back panel layer; 201. Main frame; 202. Drainage groove; 203. Snap-fit ​​flange; 301. Heat dissipation rib; 302. Junction box mounting groove. 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 5 A photovoltaic power generation panel includes a laminated power generation unit 1, a frame assembly 2, a back sheet protective layer 3, and a junction box 4. The laminated power generation unit 1 is composed of a tempered glass layer 101, a photovoltaic cell layer 102 encapsulated with EVA film, and a back sheet layer 103, which are hot-pressed together from top to bottom. The frame assembly 2 covers the four perimeters of the laminated power generation unit 1 and includes an integrally formed main frame 201 and a drainage groove 202. The inner side of the main frame 201 is provided with a snap-fit ​​flange 203, which is bonded and fixed to the side of the laminated power generation unit 1 by sealant. The back sheet protective layer 3 is attached to the back sheet layer 103 and has heat dissipation ribs 301 and a junction box mounting groove 302 on its surface. The junction box 4 is embedded in the junction box mounting groove 302, and the heat dissipation ribs 301 are parallel aluminum alloy fins.

[0028] The drainage channel 202 is located at the upper edge of the main frame 201. The bottom of the drainage channel 202 is provided with a drainage hole 206. The upper edge of the main frame 201 and the outside of the drainage channel 202 are fixedly provided with a baffle 5 for blocking debris.

[0029] The main frame 201 has a stepped cross-section and includes an upper mounting platform 207 and a lower support base 208. The support base 208 is provided with bolt countersunk holes 209 and an anti-slip pad 210 is fixed at the bottom.

[0030] The working principle of this utility model is as follows: the photovoltaic cell layer 102 in the laminated power generation unit 1 achieves photoelectric conversion under illumination, and the generated current is output through the junction box 4. The main frame 201 of the frame assembly 2 is fixed to the side of the laminated power generation unit 1 by the snap-fit ​​flange 203, which plays an overall supporting role. In rainy weather, rainwater falling on the surface of the laminated power generation unit 1 flows into the drainage channel 202 along the edge and is discharged through the drainage hole 206. The baffle 5 can prevent debris from entering the drainage channel 202. The back plate protective layer 3 is attached to the bottom of the back plate layer 103. The heat dissipation ribs 301 (aluminum alloy fins) on its surface can quickly dissipate the heat generated by the photovoltaic cell layer 102 when it is working. The junction box 4 is embedded in the junction box mounting groove 302 to ensure the stability of the installation. The upper mounting platform 207 and the lower support base 208 of the main frame 201 form a stepped structure. The bolt countersunk holes 209 on the support base 208 are used to fix the equipment, and the anti-slip rubber pads 210 at the bottom enhance the stability of the placement.

[0031] 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 power generation panel, comprising a laminated power generation unit (1), a frame assembly (2), a back sheet protective layer (3), and a junction box (4), characterized in that: The laminated power generation unit (1) is composed of a tempered glass layer (101), a photovoltaic cell layer (102) encapsulated with EVA film, and a backsheet layer (103) hot-pressed composite from top to bottom; the frame assembly (2) covers the four perimeters of the laminated power generation unit (1), and the frame assembly (2) includes an integrally formed main frame (201) and a drainage groove (202). The inner side of the main frame (201) is provided with a snap-fit ​​flange (203), and the snap-fit ​​flange (203) is bonded and fixed to the side of the laminated power generation unit (1) by sealant; The back panel protective layer (3) is attached to the underside of the back panel layer (103) and has heat dissipation ribs (301) and junction box mounting groove (302) on its surface; the junction box (4) is embedded in the junction box mounting groove (302).

2. A photovoltaic power generation panel according to claim 1, characterized in that: The drainage channel (202) is located at the upper edge of the main frame (201), and a drainage hole (206) is provided at the bottom of the drainage channel (202).

3. A photovoltaic panel according to claim 1, characterized in that: The main frame (201) has a stepped cross-section and includes an upper mounting platform (207) and a lower support base (208). The support base (208) is provided with bolt countersunk holes (209) and an anti-slip pad (210) is fixed at the bottom.

4. A photovoltaic panel according to claim 1, characterized in that: The heat dissipation ribs (301) are parallel aluminum alloy fins.

5. A photovoltaic power generation panel according to claim 1, characterized in that: The upper edge of the main frame (201) and the outside of the drainage channel (202) are fixedly provided with a baffle (5) for blocking debris.

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