Photovoltaic device

Abstract

The present disclosure provides a photovoltaic device. The photovoltaic device includes: a plurality of photovoltaic panels, each photovoltaic panel including opposite first and second sides, the photovoltaic panels including a first photovoltaic panel and a second photovoltaic panel; a first frame and a second frame respectively assembled to the first and second sides of the photovoltaic panels; and a sealing assembly sealed to the second frame of the first photovoltaic panel and the first frame of the second photovoltaic panel, the sealing assembly including a waterproof cover plate assembled to the first and second frames. The photovoltaic device has excellent waterproof effect and durability.

Description

Technical Field

[0001] The present disclosure relates to a photovoltaic device. Background Art

[0002] A photovoltaic device is a device that can convert solar energy into electrical energy, and the generated electrical energy can be used by electrical equipment or transmitted to the power grid. The photovoltaic device can be applied to the Building Integrated Photovoltaic (BIPV) technology. The BIPV technology is widely used because it can meet the requirements of building aesthetics, reduce the occupation of land resources, achieve building energy conservation, and reduce the temperature rise of buildings.

[0003] In the related art, a photovoltaic device includes a plurality of photovoltaic panels. Four frames are respectively assembled on the four sides of each photovoltaic panel, and the frames of adjacent two photovoltaic panels are connected by snap connection, but the waterproof effect is poor and water leakage problems are likely to occur. Summary of the Invention

[0004] The present disclosure provides a photovoltaic device with good waterproof effect.

[0005] One aspect of the present disclosure provides a photovoltaic device, which includes:

[0006] A plurality of photovoltaic panels, each of the photovoltaic panels includes opposite first and second sides, and the photovoltaic panels include a first photovoltaic panel and a second photovoltaic panel;

[0007] A first frame and a second frame respectively assembled on the first side and the second side of the photovoltaic panel; and

[0008] A sealing assembly sealed between the second frame assembled on the first photovoltaic panel and the first frame assembled on the second photovoltaic panel, and the sealing assembly includes a waterproof cover plate assembled on the first frame and the second frame.

[0009] Optionally, the sealing assembly further includes: a first sealing member sealed between the top of the first frame and the waterproof cover plate, and a second sealing member sealed between the top of the second frame and the waterproof cover plate.

[0010] Optionally, both the first sealing member and the second sealing member are rubber members.

[0011] Optionally, the first frame includes a first lower frame body and a first upper frame body connected to the top of the first lower frame body, and a first opening for connecting with the first side is provided on the side surface of the first lower frame body;

[0012] The second frame includes a second lower frame body and a second upper frame body connected to the top of the second lower frame body, and a second opening connected to the second side is provided on the side of the second lower frame body;

[0013] A flow guiding groove is formed among the first upper frame body, the photovoltaic panel and the second upper frame body.

[0014] Optionally, the second opening connected to the first photovoltaic panel is aligned with the first opening connected to the second photovoltaic panel.

[0015] Optionally, a first abutting portion is provided at the top of the first upper frame body, and a second abutting portion is provided at the top of the second upper frame body. The waterproof cover plate is hermetically connected to the second abutting portion on the first photovoltaic panel and the first abutting portion on the second photovoltaic panel.

[0016] Optionally, the first abutting portion extends along the side facing away from the first opening, and the second abutting portion extends along the side facing away from the second opening.

[0017] Optionally, the sealing assembly further includes: a plurality of clamping members connected to the bottom surface of the waterproof cover plate and arranged at intervals. The clamping members extend into and are assembled between the second frame of the first photovoltaic panel and the first frame of the second photovoltaic panel and are clamped to the bottom of the first frame and the bottom of the second frame.

[0018] Optionally, the photovoltaic device further includes a plurality of pressing block assemblies assembled on the first upper frame body of the second photovoltaic panel and the corresponding second upper frame body of the first photovoltaic panel and located below the first abutting portion and below the second abutting portion.

[0019] Optionally, the pressing block assemblies are staggered from the clamping members.

[0020] Optionally, the first upper frame body is provided with a first pressing groove blocked by the first abutting portion, and the second upper frame body is provided with a second pressing groove blocked by the second abutting portion. The pressing block assembly includes a pressing block, and two opposite sides of the pressing block are respectively provided with downwardly protruding pressing portions. One pressing portion presses in the first pressing groove, and the other pressing portion presses in the second pressing groove.

[0021] Optionally, the first lower frame body is provided with a first built-in cavity for accommodating a junction box; and / or

[0022] The second lower frame body is provided with a second built-in cavity for accommodating a junction box.

[0023] Optionally, the photovoltaic panel further includes a third photovoltaic panel adjacent to the first photovoltaic panel. The photovoltaic panel further includes a third side connecting the first side and the second side, and a fourth side opposite to the third side;

[0024] The photovoltaic device further includes a third frame and a fourth frame respectively assembled on the third side and the fourth side of the photovoltaic panel, and a third sealant sealed between the third frame assembled on the first photovoltaic panel and the fourth frame assembled on the third photovoltaic panel.

[0025] Optionally, a first connecting portion is provided on a side surface of the third frame facing away from the photovoltaic panel, and a second connecting portion that can be matingly connected to the first connecting portion is provided on a side surface of the fourth frame facing away from the photovoltaic panel. At least one of the surfaces of the first connecting portion and the second connecting portion is set as a rough surface, and the third sealant is sealed between the first connecting portion and the second connecting portion.

[0026] Optionally, the rough surface is a frosted surface, or the rough surface is provided with patterns or serrated structures, and the third sealant is a rubber part.

[0027] Optionally, the number of both the first connecting portions and the second connecting portions is multiple. The multiple first connecting portions are dispersedly arranged on the side surface of the third frame from top to bottom, and the multiple second connecting portions are dispersedly arranged on the side surface of the fourth frame from top to bottom.

[0028] Optionally, the rough surface covers the first connecting portion and the area between two adjacent first connecting portions; and / or the rough surface covers the second connecting portion and the area between two adjacent second connecting portions.

[0029] Optionally, the third sealant covers the first connecting portion and the area between two adjacent first connecting portions; or the third sealant covers the second connecting portion and the area between two adjacent second connecting portions.

[0030] Optionally, at least a part of the first connecting portion at the uppermost part of the third frame blocks at least a part of the second connecting portion at the uppermost part of the fourth frame; or at least a part of the second connecting portion at the uppermost part of the fourth frame blocks at least a part of the first connecting portion at the uppermost part of the third frame.

[0031] Optionally, the first connecting portion has a convex structure, and the second connecting portion has a concave structure matching the convex structure.

[0032] Optionally, a third opening for connecting the third side of the photovoltaic panel is provided at the top of the side of the third frame facing away from the first connecting portion, and a fourth opening for connecting the fourth side of the photovoltaic panel is provided at the top of the side of the fourth frame facing away from the second connecting portion. The third opening connected to the first photovoltaic panel is flush with the fourth opening connected to the third photovoltaic panel; and / or

[0033] The first connecting portion and the second connecting portion are connected by mortise and tenon fitting.

[0034] Optionally, the length of the first frame and the length of the second frame are both greater than the length of the third frame, and the length of the first frame and the length of the second frame are both greater than the length of the fourth frame.

[0035] Optionally, the photovoltaic device further includes:

[0036] A support member connected to the back surface of the photovoltaic panel;

[0037] A fireproof back plate provided on the side of the support member facing away from the photovoltaic panel and connected to the support member; and

[0038] A fireproof heat-insulating body filled between the photovoltaic panel and the fireproof back plate.

[0039] Optionally, the number of the support members is at least two and they are dispersedly arranged.

[0040] Optionally, the support member has a hollow long-strip structure.

[0041] Optionally, the extending direction of the support member is parallel or perpendicular to the first side of the photovoltaic panel.

[0042] Optionally, the support member is an inverted triangular truss, the bottom surface of the triangular truss is connected to the back surface of the photovoltaic panel, and the apex angle of the triangular truss is connected to the fireproof back plate.

[0043] Optionally, the apex angle of the triangular truss is connected to the fireproof back plate through a plate-shaped connecting member, and the plate surface of the plate-shaped connecting member is parallel to the plate surface of the fireproof back plate.

[0044] Optionally, the cross-section along the direction perpendicular to the axis of the triangular truss is an isosceles triangle structure; and / or

[0045] A plurality of hollow triangles are provided on the bottom surface and two side surfaces of the triangular truss.

[0046] Optionally, at least part of the fireproof heat-insulating body is filled in the support member.

[0047] Optionally, the fireproof back plate is connected to the bottoms of the first frame and the second frame.

[0048] The technical solution provided by the present disclosure has at least the following beneficial effects:

[0049] The photovoltaic device provided by the present disclosure is based on a sealing assembly that seals the second frame on the first photovoltaic panel and the first frame on the second photovoltaic panel, and a waterproof cover plate of the sealing assembly is assembled on the first frame and the second frame, preventing rainwater and the like from entering between the first frame and the second frame. This enables the sealing assembly to effectively seal and connect the first frame and the second frame, giving the photovoltaic device excellent waterproof performance and durability. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] Figure 1 FIG. 1 is a schematic structural diagram of a photovoltaic device provided by an embodiment of the present disclosure;

[0051] Figure 2 As shown in Figure 1 FIG. 2 is a schematic structural diagram of a photovoltaic panel in FIG. 1;

[0052] Figure 3 As shown in Figure 1 FIG. 3 is a schematic diagram of a partial structure of the photovoltaic device in FIG. 1;

[0053] Figure 4 As shown in Figure 3 FIG. 4 is a cross-sectional view taken along line A-A in FIG. 3;

[0054] Figure 5 As shown in Figure 1 FIG. 5 is a schematic structural diagram of the connection between the first photovoltaic panel and the second photovoltaic panel through a sealing assembly in FIG. 3;

[0055] Figure 6 FIG. 6 is a schematic structural diagram of the connection between a waterproof cover plate and a clamping member provided by an embodiment of the present disclosure;

[0056] Figure 7 As shown in Figure 6 FIG. 7 is an enlarged schematic diagram of a partial structure in FIG. 6;

[0057] Figure 8 FIG. 8 is a schematic diagram of the staggering of the clamping member and the pressing block assembly provided by an embodiment of the present disclosure;

[0058] Figure 9 As shown in Figure 3 FIG. 9 is a cross-sectional view taken along line B-B in FIG. 8;

[0059] Figure 10 As shown in Figure 9 FIG. 10 is an enlarged schematic diagram of a partial structure in FIG. 9;

[0060] Figure 11 As shown in Figure 9 FIG. 11 is an enlarged schematic diagram of another partial structure in FIG. 9;

[0061] Figure 12 The figure shows a schematic structural diagram of the connection between the first photovoltaic panel and the third photovoltaic panel through the third seal;

[0062] Figure 13 The figure shows a partial structural diagram of the back of the photovoltaic device provided in an embodiment of the present disclosure;

[0063] Figure 14 The figure shows Figure 13 a cross-sectional view taken along line C-C in

[0064] Figure 15 The figure shows Figure 14 a partially enlarged schematic diagram of

[0065] Figure 16 The figure shows a schematic structural diagram of the triangular truss cut along the axis direction provided in an embodiment of the present disclosure;

[0066] Figure 17 The figure shows a partial structural diagram of the triangular truss provided in an embodiment of the present disclosure along the first direction;

[0067] Figure 18 The figure shows a partial structural diagram of the triangular truss provided in an embodiment of the present disclosure along the second direction;

[0068] Figure 19 The figure shows a partial structural diagram of the triangular truss provided in an embodiment of the present disclosure along the third direction.

[0069] Among them, the reference numerals are as follows:

[0070] Photovoltaic panel - 110, first side - 101, second side - 102, third side - 103, fourth side - 104, first photovoltaic panel - 111, second photovoltaic panel - 112, third photovoltaic panel - 113, first frame - 120, first lower frame body - 121, first upper frame body - 122, first opening - 123, first abutting part - 124, first pressing groove - 125, first built - in cavity - 126, second frame - 130, second lower frame body - 131, second upper frame body - 132, second opening - 133, second abutting part - 134, second pressing groove - 135, second built - in cavity - 136, flow - guiding groove - 105, sealing assembly - 140, waterproof cover plate - 141, first seal - 142, second seal - 143, clamping part - 144, first clamping plate - 145, second clamping plate - 146, connecting part - 147, first buckle - 148, second buckle - 149, pressing block assembly - 150, pressing block - 151, pressing part - 152, screw - 153, third frame - 160, first connecting part - 161, third opening - 162, fourth frame - 170, second connecting part - 171, fourth opening - 172, rough surface - 106, third seal - 180, support part - 190, first connecting body - 191, second connecting body - 192, third connecting body - 193, fourth connecting body - 194, fire - resistant back plate - 200, fire - resistant heat - insulating body - 210, plate - shaped connecting part - 220. Detailed implementation mode

[0071] In the related art, two adjacent photovoltaic panels are clamped between frames to form a flow - guiding groove. Since the frames are metal frames, there are gaps between the frames after clamping, which makes it easy for liquids such as rainwater to flow in the gaps between the two frames. Although the flow - guiding groove can drain the leaked rainwater, etc., when the flow rate of rainwater, etc. is large, the rainwater in the flow - guiding groove will overflow and seep into the surrounding gaps, which will cause the photovoltaic device to have a water leakage problem and poor waterproof effect.

[0072] To solve the above problems, the embodiments of the present disclosure provide a photovoltaic device, which includes: a plurality of photovoltaic panels, each photovoltaic panel includes opposite first and second sides, and the photovoltaic panels include a first photovoltaic panel and a second photovoltaic panel; a first frame and a second frame respectively assembled on the first and second sides of the photovoltaic panels; and a sealing assembly sealed between the second frame assembled on the first photovoltaic panel and the first frame assembled on the second photovoltaic panel, and the sealing assembly includes a waterproof cover plate assembled on the first frame and the second frame. It can be understood that the second frame on the first photovoltaic panel and the first frame on the second photovoltaic panel are sealed and connected through the sealing assembly.

[0073] The photovoltaic device provided by an embodiment of the present disclosure is based on a sealing assembly that seals the second frame on the first photovoltaic panel and the first frame on the second photovoltaic panel, and a waterproof cover plate of the sealing assembly is assembled on the first frame and the second frame to prevent rainwater and the like from entering between the first frame and the second frame. This enables the sealing assembly to effectively seal and connect the first frame and the second frame, making the photovoltaic device have excellent waterproof performance and durability.

[0074] To understand more clearly the photovoltaic device provided by an embodiment of the present disclosure, the following embodiments are given:

[0075] Figure 1 、 Figure 2 and Figure 3 The orientations of the respective photovoltaic panels in Figures 4 to 12 are the same, and the "upper part", "top", "lower part", and "bottom" are all based on the orientation in

[0076] The photovoltaic device provided by an embodiment of the present disclosure may include: a photovoltaic panel 110, a first frame 120, a second frame 130, a sealing assembly 140, a third frame 160, a fourth frame 170, a pressing block assembly 150, a third seal 180, a support member 190, a fireproof backplane 200, and a fireproof insulation body 210.

[0077] With reference to Figure 1 and Figure 2 , the number of photovoltaic panels 110 may be multiple. Each photovoltaic panel 110 includes opposite first side 101 and second side 102, a third side 103 connecting the first side 101 and the second side 102, and a fourth side 104 opposite to the third side 103. The photovoltaic panel 110 may include a first photovoltaic panel 111 and a second photovoltaic panel 112, and the second side 102 of the first photovoltaic panel 111 is assembled with the first side 101 of the second photovoltaic panel 112. The photovoltaic panel 110 may further include a third photovoltaic panel 113 adjacent to the first photovoltaic panel 111, and the third side 103 of the first photovoltaic panel 111 is assembled with the fourth side 104 of the third photovoltaic panel 113. The photovoltaic panel 110 may only include the first photovoltaic panel 111 and the second photovoltaic panel 112, or the photovoltaic panel 110 may only include the first photovoltaic panel 111, the second photovoltaic panel 112, and the third photovoltaic panel 113, or the number of photovoltaic panels 110 is greater than three, such as Figure 1 shows four photovoltaic panels 110.

[0078] Referring to Figure 3 , the first frame 120 and the second frame 130 may be respectively assembled on the first side 101 and the second side 102 of each photovoltaic panel 110. Referring to Figure 4, the first frame 120 may include a first lower frame body 121 and a first upper frame body 122 connected to the top of the first lower frame body 121. A first opening 123 connected to the first side 101 may be provided on the side surface of the first lower frame body 121; the second frame 130 may include a second lower frame body 131 and a second upper frame body 132 connected to the top of the second lower frame body 131. A second opening 133 connected to the second side 102 may be provided on the side surface of the second lower frame body 131. It can be understood that since the first opening 123 on the side surface of the first lower frame body 121 and the second opening 133 on the side surface of the second lower frame body 131 are respectively connected to the first side 101 and the second side 102 of the photovoltaic panel 110, this causes both the first upper frame body 122 and the second upper frame body 132 to protrude upward from the surface of the photovoltaic panel 110, and a flow guiding groove 105 is formed between the first upper frame body 122, the photovoltaic panel 110, and the second upper frame body 132. The cross-section of the flow guiding groove 105 is similar to a "U-shaped structure", which is conducive to accelerating the discharge of rainwater and the like through the flow guiding groove 105, and reducing the residence time of rainwater on the photovoltaic panel 110, the first frame 120, and the second frame 130. In the related art, a first opening is provided at the top of the side surface of the first frame, and a second opening is provided at the top of the side surface of the second frame. In this way, a flow guiding groove with a "U-shaped structure" cannot be formed between the first frame above the photovoltaic panel, the second frame above the photovoltaic panel, and the photovoltaic panel. Rainwater can flow irregularly on the photovoltaic panel, the first frame, and the second frame, which is not conducive to drainage, and rainwater is likely to stay and leak between the first frame and the second frame. Through the cooperation of the first frame 120, the second frame 130, and the photovoltaic panel 110 provided by the embodiments of the present disclosure, it is conducive to drainage, and the photovoltaic device has excellent waterproof effect.

[0079] With reference to Figure 1 、 Figure 3 、 Figure 5 and Figure 6 , the sealing assembly 140 can be sealed between the second frame 130 assembled on the first photovoltaic panel 111 and the first frame 120 assembled on the second photovoltaic panel 112. The sealing assembly 140 may include a waterproof cover plate 141, a first seal 142, a second seal 143, and a plurality of clamping members 144. The waterproof cover plate 141 is assembled on the first frame 120 and the second frame 130, so as to prevent rainwater and the like from entering the gap between the first frame 120 and the second frame 130, and improve the waterproof effect and durability of the photovoltaic device. Refer to Figure 6 , the waterproof cover plate 141 may be extended and arranged along a direction parallel to the first frame 120, and has a strip-shaped structure to effectively block the gap between the first frame 120 and the second frame 130. Refer to Figure 5 , the cross-section of the waterproof cover plate 141 along the direction perpendicular to the first frame 120 may be similar to an umbrella-shaped structure, which prevents rainwater from accumulating on the waterproof cover plate 141 and facilitates drainage. Continuing to refer toFigure 4 or Figure 5 At the top of the first upper frame body 122, a first abutting portion 124 may be provided, and at the top of the second upper frame body 132, a second abutting portion 134 may be provided. The waterproof cover plate 141 is hermetically connected to the second abutting portion 134 on the first photovoltaic panel 111 and the first abutting portion 124 on the second photovoltaic panel 112. By providing the first abutting portion 124 and the second abutting portion 134, it is convenient for positioning and assembling between the waterproof cover plate 141, the first frame 120 and the second frame 130. The first abutting portion 124 may extend along a side facing away from the first opening 123, and the first abutting portion 124 may be formed by extending the side wall of the first upper frame body 122. The second abutting portion 134 may extend along a side facing away from the second opening 133, and the second abutting portion 134 may be formed by extending the side wall of the second upper frame body 132. In this way, after the waterproof cover plate 141 is assembled with the first abutting portion 124 and the second abutting portion 134, a sealed cavity is formed between the waterproof cover plate 141, the first abutting portion 124 and the second abutting portion 134 to facilitate accommodating other components.

[0080] Continue to refer to Figure 5 A first seal 142 may be sealed between the top of the first frame 120 and the waterproof cover plate 141, and a second seal 143 may be sealed between the top of the second frame 130 and the waterproof cover plate 141 to effectively prevent rainwater from entering between the first frame 120 and the second frame 130. Specifically, the first abutting portion 124 of the first upper frame body 122 may be hermetically connected to the bottom surface of the waterproof cover plate 141 through the first seal 142; the second abutting portion 134 of the second upper frame body 132 may be hermetically connected to the bottom surface of the waterproof cover plate 141 through the second seal 143. This prevents liquid such as rainwater from entering between the first frame 120 and the second frame 130 through the gaps between the first upper frame body 122 and the waterproof cover plate 141 and between the second upper frame body 132 and the waterproof cover plate 141. The cooperation of the waterproof cover plate 141, the first seal 142 and the second seal 143 enhances the waterproof effect. The first seal 142 and the second seal 143 may be rubber parts. For example, the materials of the first seal 142 and the second seal 143 may be ethylene propylene diene monomer (EPDM) rubber materials. This material not only has waterproof properties but also excellent heat resistance, weather resistance and other aging properties, which makes the first seal 142 and the second seal 143 have excellent heat resistance, weather resistance and other properties. The first seal 142 and the second seal 143 may be respectively bonded to the first abutting portion 124 and the second abutting portion 134, or may be respectively limited in the limiting grooves of the first abutting portion 124 and the second abutting portion 134. The present disclosure does not make specific limitations on this.

[0081] With reference to Figure 5 、 Figure 6 and Figure 7, a plurality of clamping members 144 can be connected to the bottom surface of the waterproof cover plate 141 and arranged at intervals. The clamping members 144 extend into and are clamped to the bottom of the first frame 120 of the second photovoltaic panel 112 and the bottom of the second frame 130 of the first photovoltaic panel 111 between the second frame 130 assembled on the first photovoltaic panel 111 and the first frame 120 assembled on the second photovoltaic panel 112, which makes the waterproof cover plate 141 firmly assembled on the first upper frame body 122 and the second upper frame body 132. Exemplarily, the clamping member 144 can include a first clamping plate 145, a second clamping plate 146 opposite to the first clamping plate 145, and a connecting member 147 connecting the first clamping plate 145 and the second clamping plate 146. A first buckle 148 for clamping the first lower frame body 121 is provided at the bottom of the first clamping plate 145 in a direction away from the second clamping plate 146, and a second buckle 149 for clamping the second lower frame body 131 is provided at the bottom of the second clamping plate 146 in a direction away from the first clamping plate 145.

[0082] A plurality of pressing block assemblies 150 can be assembled on the first upper frame body 122 on the second photovoltaic panel 112 and the second upper frame body 132 on the first photovoltaic panel 111 and are located below the first abutting portion 124 and below the second abutting portion 134. Since the pressing block assemblies 150 are located below the first abutting portion 124 and below the second abutting portion 134, the waterproof cover plate 141, the first seal 142 and the second seal 143 seal the pressing block assemblies 150 inside, preventing rainwater, etc. from flowing through the pressing block assemblies 150. The pressing block assemblies 150 are used to fixedly connect the first frame 120 and the second frame 130 to a bracket or the like located below the photovoltaic module, and thus fixedly connect the photovoltaic device to a building surface such as a roof. Refer to Figure 8 , the pressing block assemblies 150 and the clamping members 144 can be staggered. When assembling, the pressing block assemblies 150 are first assembled with the adjacent first frame 120 and second frame 130, and then the clamping members 144 of the sealing assembly 140 are clamped between the adjacent first frame 120 and second frame 130. The pressing block assemblies 150 do not affect the clamping members 144 from extending between the first frame 120 and the second frame 130, facilitating the assembly between the clamping members 144 and the first frame 120 and the second frame 130. Exemplarily, continue to refer to Figure 5 , the first upper frame body 122 is provided with a first pressing groove 125 blocked by the first abutting portion 124, and the second upper frame body 132 is provided with a second pressing groove 135 blocked by the second abutting portion 134. The pressing block assembly 150 can include a pressing block 151. Downwardly protruding pressing portions 152 are respectively provided on two opposite sides of the pressing block 151. One pressing portion 152 can be pressed in the first pressing groove 125, and the other pressing portion 152 can be pressed in the second pressing groove 135. With such a setting, it is convenient to accurately assemble the pressing block 151 on the first upper frame body 122 and the second upper frame body 132. Continue to refer to Figure 8, the briquetting component 150 may further include a screw 153 connected to the briquet 151. The screw 153 passes through the briquet 151 and is connected to a bracket or other components below the photovoltaic device to fix the photovoltaic device.

[0083] Continuing to refer to Figure 5 , the first lower frame 121 may be provided with a first built-in cavity 126 for accommodating a junction box; and / or the second lower frame 131 may be provided with a second built-in cavity 136 for accommodating a junction box. In this way, it is convenient to design other film layer structures on the back of the photovoltaic panel 110, and it is avoided that the junction box affects the design of other structures when it is arranged on the back of the photovoltaic panel 110, such as the support member 190, the fireproof backplane 200, and the fireproof heat insulation body 210, etc. The first lower frame 121 and the second lower frame 131 may also be provided with holes or grooves for leading out the leads connecting the junction box.

[0084] In the related art, after the first frame 120 on the second photovoltaic panel 112 and the second frame 130 on the first photovoltaic panel 111 are assembled, the second opening 133 connected to the first photovoltaic panel 111 and the first opening 123 connected to the second photovoltaic panel 112 are not aligned, which causes a stepped shape between the first photovoltaic panel 111 and the second photovoltaic panel 112. Rainwater is likely to accumulate at the stepped position, which is not conducive to drainage, and irregularly shaped brackets are required to support the first photovoltaic panel 111 and the second photovoltaic panel 112, resulting in cumbersome assembly and increased costs. In the embodiments of the present disclosure, continuing to refer to Figure 5 , the second opening 133 connected to the first photovoltaic panel 111 is aligned with the first opening 123 connected to the second photovoltaic panel 112. That is to say, after the first frame 120 and the second frame 130 are assembled, the first photovoltaic panel 111 and the second photovoltaic panel 112 are on the same plane, which makes the surface of the photovoltaic device flat and beautiful, and is conducive to the drainage of rainwater through the drainage groove 105.

[0085] With reference to Figure 3 , Figure 9 , Figure 10 , Figure 11 and Figure 12 , the third frame 160 and the fourth frame 170 can be respectively assembled on the third side 103 and the fourth side 104 of the photovoltaic panel 110. The third seal 180 is sealed between the third frame 160 assembled on the first photovoltaic panel 111 and the fourth frame 170 assembled on the third photovoltaic panel 113, which makes the first photovoltaic panel 111 and the third photovoltaic panel 113 be hermetically connected, and the first photovoltaic panel 111 and the second photovoltaic panel 112 be hermetically connected. It is conducive to forming a complete and leak-proof surface on the surface of the photovoltaic device, improving the waterproof performance and durability of the photovoltaic device, and being conducive to the application in building-integrated photovoltaics.

[0086] With reference to Figure 9 and Figure 10, on one side of the third frame 160 facing away from the photovoltaic panel 110, a first connecting portion 161 may be provided. On one side of the fourth frame 170 facing away from the photovoltaic panel 110, a second connecting portion 171 that can be matched and connected with the first connecting portion 161 may be provided. The surface of at least one of the first connecting portion 161 and the second connecting portion 171 may be set as a rough surface 106. The third seal 180 may be sealed between the first connecting portion 161 and the second connecting portion 171. The rough surface 106 facilitates the third seal 180 to be firmly sealed between the first connecting portion 161 and the second connecting portion 171. The surface of the first connecting portion 161 may be set as the rough surface 106, or the surface of the second connecting portion 171 may be set as the rough surface 106, or the surfaces of both the first connecting portion 161 and the second connecting portion 171 may be set as the rough surface 106. When the surface of the first connecting portion 161 is set as the rough surface 106, the third seal 180 may be provided on the second connecting portion 171; when the third seal 180 is provided on the surface of the first connecting portion 161, the surface of the second connecting portion 171 may be set as the rough surface 106. The third seal 180 may be bonded to the first connecting portion 161 or the second connecting portion 171. The roughness of the rough surface 106 is greater than the roughness of the third seal 180. The rough surface 106 may be a frosted surface, or the rough surface 106 is provided with patterns or serrated structures, or other regular or irregular structures. Among them, the patterns may be strip patterns, circular patterns, square patterns, other regular or irregular structures. The third seal 180 may be a rubber part, and the material of the third seal 180 may also be ethylene propylene diene monomer rubber material, which enables the third seal 180 to have good heat resistance and weather resistance. The first connecting portion 161 and the second connecting portion 171 may be connected by tenon and mortise fit, which is conducive to increasing the connection force between the third frame 160 and the fourth frame 170. The first connecting portion 161 and the second connecting portion 171 may be set into various structures. Exemplarily, continue to refer to Figure 10 and Figure 11 , the first connecting portion 161 may be in a convex structure, and the second connecting portion 171 may be in a concave structure that matches the convex structure. The convex structure and the concave structure are simple and easy to process.

[0087] Continue to refer to Figures 9 to 11, the number of the first connecting portions 161 and the second connecting portions 171 can both be multiple. The multiple first connecting portions 161 are dispersedly arranged on the side surface of the third frame 160 from top to bottom, and the multiple second connecting portions 171 are dispersedly arranged on the side surface of the fourth frame 170 from top to bottom. Through the matching connection of the multiple first connecting portions 161 and the multiple second connecting portions 171, the third frame 160 and the fourth frame 170 are firmly assembled. When the number of the first connecting portions 161 and the second connecting portions 171 is multiple, the rough surface 106 covers the first connecting portions 161 and the area between two adjacent first connecting portions 161; and / or the rough surface 106 covers the second connecting portions 171 and the area between two adjacent second connecting portions 171. In this way, the multiple first connecting portions 161 and the multiple second connecting portions 171 are respectively and matchingly connected, increasing the connection points between the side surface of the third frame 160 and the side surface of the fourth frame 170, which is beneficial to the firm assembly of the third frame 160 and the fourth frame 170. When the number of the first connecting portions 161 and the second connecting portions 171 is multiple, the third seal 180 covers the first connecting portions 161 and the area between two adjacent first connecting portions 161; or the third seal 180 covers the second connecting portions 171 and the area between two adjacent second connecting portions 171. In this way, by sealing the connection between the third frame 160 and the fourth frame 170 from top to bottom through the third seal 180, an excellent sealing effect is achieved, enhancing the waterproof performance of the photovoltaic device.

[0088] After the first connecting portion 161 of the third frame 160 on the first photovoltaic panel 111 is assembled with the second connecting portion 171 of the fourth frame 170 on the third photovoltaic panel 113, at least a part of the first connecting portion 161 at the uppermost part of the third frame 160 can block at least a part of the second connecting portion 171 at the uppermost part of the fourth frame 170; or refer to Figure 11 , at least a part of the second connecting portion 171 at the uppermost part of the fourth frame 170 can block at least a part of the first connecting portion 161 at the uppermost part of the third frame 160. In this way, rainwater and the like are prevented from directly flushing the third seal 180 between the third frame 160 and the fourth frame 170, increasing the service life of the third seal 180.

[0089] Continue to refer to Figure 12 , a third opening 162 for connecting the third side 103 of the photovoltaic panel 110 can be provided at the top of the side surface of the third frame 160 facing away from the first connecting portion 161, and a fourth opening 172 for connecting the fourth side 104 of the photovoltaic panel 110 can be provided at the top of the side surface of the fourth frame 170 facing away from the second connecting portion 171. The third opening 162 connected to the first photovoltaic panel 111 and the fourth opening 172 connected to the third photovoltaic panel 113 can be flush. In this way, the adjacent first photovoltaic panel 111 and the third photovoltaic panel 113 are made flush, which is beneficial to making the photovoltaic device have a flat and beautiful surface.

[0090] In the embodiments of the present disclosure, the length of the first frame 120 and the length of the second frame 130 may both be greater than the length of the third frame 160, and the length of the first frame 120 and the length of the second frame 130 may both be greater than the length of the fourth frame 170. That is, the first frame 120 and the second frame 130 are long frames, and the third frame 160 and the fourth frame 170 are short frames. Of course, the first frame 120 and the second frame 130 may also be short frames, and the third frame 160 and the fourth frame 170 may be long frames.

[0091] With reference to Figure 13 and Figure 14 , the support member 190 may be connected to the back surface of the photovoltaic panel 110 to improve the stress performance of the photovoltaic panel 110. The number of the support members 190 is at least two and they are dispersedly arranged, so as to improve the stress performance of each position of the photovoltaic panel 110. The structure of the support member 190 can be designed in various ways. In order to reduce the mass of the photovoltaic device, the support member 190 may be in a hollow long strip structure. The extending direction of the support member 190 may be parallel or perpendicular to the first side 101 of the photovoltaic panel 110, which improves the stress performance of the photovoltaic device along the direction parallel or perpendicular to the first side 101. The support member 190 may be in a square tube structure, a trapezoidal tube structure, or other regular or irregular structures. Exemplarily, with reference to Figure 15 , the support member 190 may be an inverted triangular truss, and the bottom surface of the triangular truss is connected to the back surface of the photovoltaic panel 110. The triangular truss has good structural stability and strong compressive performance, and the bottom surface of the triangular truss fits the back surface of the photovoltaic panel 110, increasing the support area for the photovoltaic device and being beneficial to improving the stress performance of the photovoltaic device. Among them, the cross-section along the direction perpendicular to the axis of the triangular truss may be triangular, that is, the triangular truss is in a hollow triangular long strip structure. Continuing to refer to Figure 15 , the cross-section along the direction perpendicular to the axis of the triangular truss may be an isosceles triangle structure, which makes the stress performance of the two sides of the triangular truss the same and is beneficial to improving the structural stability of the photovoltaic device. Refer to Figure 16 , Figure 17 , Figure 18 and Figure 19 , a plurality of hollow triangles are provided on the bottom surface and the two sides of the triangular truss, which not only helps to reduce the mass of the triangular truss, but also increases the structural stability of the triangular truss. The hollow triangles on the bottom surface and the sides of the triangular truss may be the same or different. Exemplarily, continuing to refer to Figure 17, a first connecting body 191 perpendicular to the edge of the bottom surface may be provided on the bottom surface of the triangular truss, and a second connecting body 192 forming an acute angle with the edge of the bottom surface. A hollow right triangle is formed among the first connecting body 191, the second connecting body 192 and the edge of the bottom surface. A hollow isosceles triangle is formed between two adjacent second connecting bodies 192 and the edge of the bottom surface. The structures of the two side surfaces of the triangular truss may be the same. Referring to Figure 18 and Figure 19 , a third connecting body 193 and a fourth connecting body 194 forming an acute angle with the edge of the side surface may be provided on the side surface of the triangular truss. A hollow triangle is formed among the third connecting body 193, the fourth connecting body 194 and the edge of the bottom surface. Among them, the area of the hollow triangle on the bottom surface of the triangular truss may be smaller than the area of the hollow triangle on the side surface, which enables the bottom surface of the triangular truss to have excellent stress performance, and further enables the photovoltaic module to have excellent stress performance.

[0092] Continuing to refer to Figure 14 and Figure 15, a fireproof backboard 200 can be disposed on a side of the support member 190 facing away from the photovoltaic panel 110 and connected to the support member 190. When the support member 190 is a triangular truss, the apex angle of the triangular truss is connected to the fireproof backboard 200. Exemplarily, the apex angle of the triangular truss can be connected to the fireproof backboard 200 through a plate-shaped connecting member 220. The plate surface of the plate-shaped connecting member 220 is parallel to the plate surface of the fireproof backboard 200 to increase the connection area with the fireproof backboard 200, facilitating a stable connection between the fireproof backboard 200 and the triangular truss. Among them, the plate-shaped connecting member 220 can be in the structure of a long strip plate body or can be multiple block structures arranged dispersedly. The plate-shaped connecting member 220 can be connected to the triangular truss by welding, or a first limiting groove can be provided on the plate surface of the plate-shaped connecting member 220, and the apex angle of the triangular truss is limited in the first limiting groove, or the plate-shaped connecting member 220 is integrally formed with the triangular truss, or the plate-shaped connecting member 220 is connected to the triangular truss through a connecting member such as a screw. The plate-shaped connecting member 220 can be adhesively connected to the fireproof backboard 200, or the plate-shaped connecting member 220 can be connected to the fireproof backboard 200 by welding, or a second limiting groove can be provided on the plate surface of the fireproof backboard 200, and a part of the plate-shaped connecting member 220 is limited in the second limiting groove, or the plate-shaped connecting member 220 is integrally formed with the fireproof backboard 200, or the plate-shaped connecting member 220 is connected to the fireproof backboard 200 through a connecting member such as a screw. The fireproof backboard 200 is a plate-shaped structure made of a fireproof material. The fireproof material can be a metal, and the fireproof backboard 200 can be a metal backboard. The fireproof backboard 200 can be connected to the bottom of the first frame 120 and the bottom of the second frame 130, such as by welding, which enables a stable connection between the fireproof backboard 200 and the first frame 120 and the second frame 130. The fireproof backboard 200 can also be connected to the first frame 120 and the second frame 130 through a connecting member such as a screw. The present disclosure does not make specific limitations thereto. The fireproof backboard 200 can also be connected to the bottom of the third frame 160 and the bottom of the fourth frame 170, such as by welding.

[0093] Continue to refer to Figure 14 and Figure 15 , a fireproof heat-insulating body 210 can be filled between the photovoltaic panel 110 and the fireproof backboard 200, which enables the photovoltaic device to have fireproof and heat-insulating properties. The fireproof heat-insulating body 210 can be granular, or can be in a layered structure, or other regular or irregular structures. Exemplarily, the material of the fireproof heat-insulating body 210 can be a rubber sponge heat-insulating material or a foaming type fireproof heat-insulating material. At least a part of the fireproof heat-insulating body 210 is filled in the support member 190, which enables the position of the support member 190 provided in the photovoltaic device to also have good heat-insulating properties. Further, the fireproof heat-insulating body 210 can also be filled in the hollow triangle of the triangular truss, so as to ensure that the position of the support member 190 provided in the photovoltaic device has good heat-insulating properties and enables the entire photovoltaic device to have uniform heat-insulating properties.

[0094] Based on the above, for the photovoltaic device provided by the embodiments of the present disclosure, after the first photovoltaic panel 111 and the second photovoltaic panel 112 are assembled, they are sealed to the second frame 130 and the first frame 120 based on the sealing assembly 140, and the waterproof cover plate 141 of the sealing assembly 140 is assembled to the first frame 120 and the second frame 130, preventing rainwater and the like from entering between the first frame 120 and the second frame 130, which enables the sealing assembly 140 to effectively seal the first frame 120 and the second frame 130. After the third photovoltaic panel 113 and the fourth photovoltaic panel 110 are assembled, they are sealed to the third frame 160 and the fourth frame 170 based on the third seal 180, which prevents rainwater and the like from entering between the third frame 160 and the fourth frame 170. Combined with the sealing between the first frame 120 and the second frame 130, the entire surface of the photovoltaic device has waterproof effect and weather resistance. By providing the support member 190, the fireproof insulation body 210, and the fireproof back plate 200 on the back of the photovoltaic panel 110, the photovoltaic device has excellent mechanical properties, fire resistance, and heat insulation properties.

[0095] Any of the above photovoltaic devices provided by the embodiments of the present disclosure can be applied to building integrated photovoltaics. The photovoltaic device has excellent waterproof performance, weather resistance, mechanical properties, heat insulation properties, and fire resistance, and can meet the requirements of buildings. For example, the photovoltaic device can be assembled on the roof of a building.

[0096] The embodiments of the present disclosure also provide the following technical solutions:

[0097] Technical solution 1: A photovoltaic device, the photovoltaic device comprising:

[0098] A plurality of photovoltaic panels, each photovoltaic panel including opposite first and second sides, the photovoltaic panels including a first photovoltaic panel and a second photovoltaic panel;

[0099] A first frame and a second frame respectively assembled to the first side and the second side of the photovoltaic panel; and

[0100] A sealing assembly sealed to the second frame of the first photovoltaic panel and the first frame of the second photovoltaic panel, the sealing assembly including a waterproof cover plate assembled to the first frame and the second frame.

[0101] Technical solution 2: The photovoltaic device according to technical solution 1, the sealing assembly further comprising: a first seal sealed between the top of the first frame and the waterproof cover plate, and a second seal sealed between the top of the second frame and the waterproof cover plate.

[0102] Technical solution 3: The photovoltaic device according to technical solution 2, wherein both the first seal and the second seal are rubber parts.

[0103] Technical solution 4: The photovoltaic device according to technical solution 1, wherein the first frame includes a first lower frame body and a first upper frame body connected to the top of the first lower frame body, and a first opening connected to the first side is provided on the side surface of the first lower frame body;

[0104] The second frame includes a second lower frame body and a second upper frame body connected to the top of the second lower frame body, and a second opening connected to the second side is provided on the side surface of the second lower frame body;

[0105] A flow guiding groove is formed among the first upper frame body, the photovoltaic panel and the second upper frame body.

[0106] Technical solution 5: The photovoltaic device according to technical solution 4, wherein the second opening connected to the first photovoltaic panel is aligned with the first opening connected to the second photovoltaic panel.

[0107] Technical solution 6: The photovoltaic device according to technical solution 4, wherein a first abutting portion is provided on the top of the first upper frame body, and a second abutting portion is provided on the top of the second upper frame body, and the waterproof cover plate is hermetically connected to the second abutting portion on the first photovoltaic panel and the first abutting portion on the second photovoltaic panel.

[0108] Technical solution 7: The photovoltaic device according to technical solution 6, wherein the first abutting portion extends along the side facing away from the first opening, and the second abutting portion extends along the side facing away from the second opening.

[0109] Technical solution 8: The photovoltaic device according to technical solution 6, wherein the sealing assembly further includes: a plurality of clamping members connected to the bottom surface of the waterproof cover plate and arranged at intervals, and the clamping members extend into and are assembled between the second frame of the first photovoltaic panel and the first frame of the second photovoltaic panel and are clamped to the bottom of the first frame and the bottom of the second frame.

[0110] Technical solution 9: The photovoltaic device according to technical solution 8, wherein the photovoltaic device further includes a plurality of pressing block assemblies assembled on the first upper frame body of the second photovoltaic panel and the second upper frame body of the first photovoltaic panel and located below the first abutting portion and below the second abutting portion.

[0111] Technical solution 10: The photovoltaic device according to technical solution 9, wherein the pressing block assemblies are staggered from the clamping members.

[0112] Technical solution 11. For the photovoltaic device according to technical solution 9, the first upper frame body is provided with a first pressing groove blocked by the first abutting portion, the second upper frame body is provided with a second pressing groove blocked by the second abutting portion, the pressing block assembly includes a pressing block, and opposite sides of the pressing block are respectively provided with downwardly protruding pressing portions. One of the pressing portions is pressed in the first pressing groove, and the other pressing portion is pressed in the second pressing groove.

[0113] Technical solution 12. For the photovoltaic device according to technical solution 4, the first lower frame body is provided with a first built-in cavity for accommodating a junction box; and / or

[0114] The second lower frame body is provided with a second built-in cavity for accommodating a junction box.

[0115] Technical solution 13. For the photovoltaic device according to technical solution 1, the photovoltaic panel further includes a third photovoltaic panel adjacent to the first photovoltaic panel, the photovoltaic panel further includes a third side connecting the first side and the second side and a fourth side opposite to the third side;

[0116] The photovoltaic device further includes a third frame and a fourth frame respectively assembled on the third side and the fourth side of the photovoltaic panel, and a third seal sealing the third frame assembled on the first photovoltaic panel and the fourth frame assembled on the third photovoltaic panel.

[0117] Technical solution 14. For the photovoltaic device according to technical solution 13, a first connecting portion is provided on a side surface of the third frame facing away from the photovoltaic panel, a second connecting portion that can be matched and connected with the first connecting portion is provided on a side surface of the fourth frame facing away from the photovoltaic panel, at least one of the surfaces of the first connecting portion and the second connecting portion is set as a rough surface, and the third seal is sealed between the first connecting portion and the second connecting portion.

[0118] Technical solution 15. For the photovoltaic device according to technical solution 14, the rough surface is a frosted surface, or the rough surface is provided with patterns or serrated structures, and the third seal is a rubber member.

[0119] Technical solution 16. For the photovoltaic device according to technical solution 14, the numbers of the first connecting portion and the second connecting portion are both multiple. The multiple first connecting portions are dispersedly arranged on the side surface of the third frame from top to bottom, and the multiple second connecting portions are dispersedly arranged on the side surface of the fourth frame from top to bottom.

[0120] Technical solution 17. For the photovoltaic device according to technical solution 16, the rough surface covers the first connecting portion and the area between two adjacent first connecting portions; and / or the rough surface covers the second connecting portion and the area between two adjacent second connecting portions.

[0121] Technical solution 18. The photovoltaic device according to technical solution 16, wherein the third seal covers the first connection part and the area between two adjacent first connection parts; or the third seal covers the second connection part and the area between two adjacent second connection parts.

[0122] Technical solution 19. The photovoltaic device according to technical solution 14, wherein at least a part of the first connection part at the uppermost part of the third frame covers at least a part of the second connection part at the uppermost part of the fourth frame; or at least a part of the second connection part at the uppermost part of the fourth frame covers at least a part of the first connection part at the uppermost part of the third frame.

[0123] Technical solution 20. The photovoltaic device according to technical solution 14, wherein the first connection part has a convex structure, and the second connection part has a concave structure matching the convex structure.

[0124] Technical solution 21. The photovoltaic device according to technical solution 14, wherein a third opening connecting the third side of the photovoltaic panel is provided at the top of the side of the third frame facing away from the first connection part, and a fourth opening connecting the fourth side of the photovoltaic panel is provided at the top of the side of the fourth frame facing away from the second connection part, and the third opening connected to the first photovoltaic panel is flush with the fourth opening connected to the third photovoltaic panel.

[0125] Technical solution 22. The photovoltaic device according to technical solution 13, wherein the length of the first frame and the length of the second frame are both greater than the length of the third frame, and the length of the first frame and the length of the second frame are both greater than the length of the fourth frame.

[0126] Technical solution 23. The photovoltaic device according to technical solution 1, further comprising:

[0127] a support member connected to the back surface of the photovoltaic panel;

[0128] a refractory backplane provided on the side of the support member facing away from the photovoltaic panel and connected to the support member; and

[0129] a refractory heat-insulating body filled between the photovoltaic panel and the refractory backplane.

[0130] Technical solution 24. The photovoltaic device according to technical solution 23, wherein the number of the support members is at least two and they are dispersedly arranged.

[0131] Technical solution 25. The photovoltaic device according to technical solution 23, wherein the support member has a hollow long-strip structure.

[0132] Technical solution 26. The photovoltaic device according to technical solution 25, wherein the extending direction of the support member is parallel or perpendicular to the first side of the photovoltaic panel.

[0133] Technical solution 27. The photovoltaic device according to technical solution 23, wherein the support member is an inverted triangular truss, the bottom surface of the triangular truss is connected to the back surface of the photovoltaic panel, and the apex angle of the triangular truss is connected to the fireproof back plate.

[0134] Technical solution 28. The photovoltaic device according to technical solution 27, wherein the apex angle of the triangular truss is connected to the fireproof back plate through a plate-shaped connecting member, and the plate surface of the plate-shaped connecting member is parallel to the plate surface of the fireproof back plate.

[0135] Technical solution 29. The photovoltaic device according to technical solution 27, wherein the cross-section along the direction perpendicular to the axis of the triangular truss is an isosceles triangle structure; and / or

[0136] A plurality of hollow triangles are provided on the bottom surface and two side surfaces of the triangular truss.

[0137] Technical solution 30. The photovoltaic device according to technical solution 25, wherein at least a part of the fireproof heat-insulating body is filled in the support member.

[0138] Technical solution 31. The photovoltaic device according to technical solution 23, wherein the fireproof back plate is connected to the bottom of the first frame and the bottom of the second frame.

[0139] In the above embodiments of the present disclosure, without conflict, they can complement each other.

[0140] The above are only the preferred embodiments of the present disclosure, and are not intended to limit the present disclosure. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present disclosure shall be included in the protection scope of the present disclosure.

Claims

1. A photovoltaic device, characterized in that, the photovoltaic device comprises: a plurality of photovoltaic panels, each of the photovoltaic panels comprising opposite first and second sides, the photovoltaic panels comprising a first photovoltaic panel and a second photovoltaic panel; a first frame and a second frame respectively assembled to the first side and the second side of the photovoltaic panel; and a sealing assembly sealed between the second frame assembled to the first photovoltaic panel and the first frame assembled to the second photovoltaic panel, the sealing assembly comprising a waterproof cover plate assembled to the first frame and the second frame; the first frame comprises a first lower frame body and a first upper frame body connected to the top of the first lower frame body, and a first opening connected to the first side is provided on the side surface of the first lower frame body; the second frame comprises a second lower frame body and a second upper frame body connected to the top of the second lower frame body, and a second opening connected to the second side is provided on the side surface of the second lower frame body; a flow guiding groove is formed between the first upper frame body, the photovoltaic panel and the second upper frame body; the sealing assembly further comprises: a first sealing member sealed between the top of the first frame and the waterproof cover plate, and a second sealing member sealed between the top of the second frame and the waterproof cover plate.

2. The photovoltaic device according to claim 1, characterized in that, both the first sealing member and the second sealing member are rubber members.

3. The photovoltaic device according to claim 1, characterized in that, the second opening connected to the first photovoltaic panel is aligned with the first opening connected to the second photovoltaic panel.

4. The photovoltaic device according to claim 1, characterized in that, a first abutting portion is provided on the top of the first upper frame body, a second abutting portion is provided on the top of the second upper frame body, and the waterproof cover plate is sealingly connected to the second abutting portion on the first photovoltaic panel and the first abutting portion on the second photovoltaic panel.

5. The photovoltaic device according to claim 4, characterized in that, the first abutting portion extends along a side facing away from the first opening, and the second abutting portion extends along a side facing away from the second opening.

6. The photovoltaic device according to claim 4, characterized in that, the sealing assembly further comprises: a plurality of clamping members connected to the bottom surface of the waterproof cover plate and arranged at intervals, and the clamping members extend into and are clamped between the second frame assembled to the first photovoltaic panel and the first frame assembled to the second photovoltaic panel and are clamped to the bottom of the first frame and the bottom of the second frame.

7. The photovoltaic device according to claim 6, characterized in that, the photovoltaic device further comprises a plurality of pressing block assemblies assembled to the first upper frame body on the second photovoltaic panel and the second upper frame body on the first photovoltaic panel and located below the first abutting portion and below the second abutting portion.

8. The photovoltaic device according to claim 7, characterized in that, the pressing block assemblies are staggered from the clamping members.

9. The photovoltaic device according to claim 7, characterized in that, The first upper frame body is provided with a first pressing groove blocked by the first abutting portion, the second upper frame body is provided with a second pressing groove blocked by the second abutting portion, the pressing block assembly includes a pressing block, and two opposite sides of the pressing block are respectively provided with downwardly protruding pressing portions. One of the pressing portions presses in the first pressing groove, and the other pressing portion presses in the second pressing groove.

10. The photovoltaic device according to claim 1, characterized in that, the first lower frame body is provided with a first built-in cavity for accommodating a junction box; and / or the second lower frame body is provided with a second built-in cavity for accommodating a junction box.

11. The photovoltaic device according to claim 1, characterized in that, the photovoltaic panel further includes a third photovoltaic panel adjacent to the first photovoltaic panel, the photovoltaic panel further includes a third side connecting the first side and the second side and a fourth side opposite to the third side; the photovoltaic device further includes a third frame and a fourth frame respectively assembled on the third side and the fourth side of the photovoltaic panel, and a third seal sealing the third frame assembled on the first photovoltaic panel and the fourth frame assembled on the third photovoltaic panel.

12. The photovoltaic device according to claim 11, characterized in that, a first connecting portion is provided on a side surface of the third frame facing away from the photovoltaic panel, a second connecting portion that can be matingly connected with the first connecting portion is provided on a side surface of the fourth frame facing away from the photovoltaic panel, at least one of the surfaces of the first connecting portion and the second connecting portion is provided as a rough surface, and the third seal is sealed between the first connecting portion and the second connecting portion.

13. The photovoltaic device according to claim 12, characterized in that, the rough surface is a frosted surface, or the rough surface is provided with patterns or serrated structures, and the third seal is a rubber part; and / or the first connecting portion and the second connecting portion are connected by tenon and mortise fit.

14. The photovoltaic device according to claim 12, characterized in that, the number of the first connecting portions and the second connecting portions are both multiple, the multiple first connecting portions are dispersedly arranged on the side surface of the third frame from top to bottom, and the multiple second connecting portions are dispersedly arranged on the side surface of the fourth frame from top to bottom.

15. The photovoltaic device according to claim 14, characterized in that, the rough surface covers the first connecting portion and the area between two adjacent first connecting portions; and / or the rough surface covers the second connecting portion and the area between two adjacent second connecting portions.

16. The photovoltaic device according to claim 14, characterized in that, the third seal covers the first connecting portion and the area between two adjacent first connecting portions; or the third seal covers the second connecting portion and the area between two adjacent second connecting portions.

17. The photovoltaic device according to claim 12, characterized in that, At least a part of the first connecting portion at the uppermost part of the third frame covers at least a part of the second connecting portion at the uppermost part of the fourth frame; or at least a part of the second connecting portion at the uppermost part of the fourth frame covers at least a part of the first connecting portion at the uppermost part of the third frame.

18. The photovoltaic device according to claim 12, wherein, the first connecting portion has a convex structure, and the second connecting portion has a concave structure matching the convex structure.

19. The photovoltaic device according to claim 12, wherein, a third opening connecting the third side of the photovoltaic panel is provided at the top of the side of the third frame facing away from the first connecting portion, a fourth opening connecting the fourth side of the photovoltaic panel is provided at the top of the side of the fourth frame facing away from the second connecting portion, and the third opening connected to the first photovoltaic panel is flush with the fourth opening connected to the third photovoltaic panel.

20. The photovoltaic device according to claim 11, wherein, the length of the first frame and the length of the second frame are both greater than the length of the third frame, and the length of the first frame and the length of the second frame are both greater than the length of the fourth frame.

21. The photovoltaic device according to claim 1, wherein, the photovoltaic device further includes: a support member connected to the back surface of the photovoltaic panel; a fireproof back plate provided on the side of the support member facing away from the photovoltaic panel and connected to the support member; and a fireproof heat-insulating body filled between the photovoltaic panel and the fireproof back plate.

22. The photovoltaic device according to claim 21, wherein, the number of the support members is at least two and they are dispersedly arranged.

23. The photovoltaic device according to claim 21, wherein, the support member has a hollow strip structure.

24. The photovoltaic device according to claim 23, wherein, the extending direction of the support member is parallel or perpendicular to the first side of the photovoltaic panel.

25. The photovoltaic device according to claim 21, wherein, the support member is an inverted triangular truss, the bottom surface of the triangular truss is connected to the back surface of the photovoltaic panel, and the top angle of the triangular truss is connected to the fireproof back plate.

26. The photovoltaic device according to claim 25, wherein, the top angle of the triangular truss is connected to the fireproof back plate through a plate-shaped connecting member, and the plate surface of the plate-shaped connecting member is parallel to the plate surface of the fireproof back plate.

27. The photovoltaic device according to claim 25, wherein, the cross-section along the direction perpendicular to the axis of the triangular truss is an isosceles triangle structure; and / or a plurality of hollowed-out triangles are provided on the bottom surface and two side surfaces of the triangular truss.

28. The photovoltaic device according to claim 23, wherein, at least a part of the fireproof heat-insulating body is filled in the support member.

29. The photovoltaic device according to claim 21, wherein, the fireproof back plate is connected to the bottom of the first frame and the bottom of the second frame.

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