Photovoltaic module system

Abstract

The utility model provides a photovoltaic module system, which comprises a laminated piece and a frame, and is characterized in that the laminated piece sequentially comprises front glass, a first adhesive film, a battery piece layer, a second adhesive film and back glass from top to bottom; the front glass is wider than the back glass; the frame comprises a hasp part and a bearing part, and the hasp part is lapped on the side edge of the front glass along the width direction of the laminated piece; the bearing part is arranged at the bottom of the back glass in a bearing mode in the width direction of the laminated piece so as to bear the laminated piece. Compared with an existing photovoltaic module system, the photovoltaic module system has the advantages that the photovoltaic module glass with different widths is arranged, namely, the width of the front glass is larger than that of the back glass, so that back shielding of the photovoltaic module can be effectively reduced, and the double-sided rate of the photovoltaic module system is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic components, in particular to a photovoltaic component system. Background Art

[0002] With the promotion of photovoltaic modules in the household market, more and more solar photovoltaic modules are installed on the roof to effectively utilize the roof space. At present, with the existing photovoltaic frame structure design, a dust belt often appears on the lower side of the photovoltaic module glass. This dust belt not only affects the power generation of the photovoltaic module, but also causes hot spots and reduces the power generation of the photovoltaic module. At the same time, photovoltaic modules installed on the roof are often not cleaned in time due to the inconvenience caused by the installation location, resulting in dust accumulation. Utility Model Content

[0003] The utility model provides a photovoltaic module system, which is used to effectively reduce the back shading of the photovoltaic module, thereby improving the bifaciality of the photovoltaic module. The photovoltaic module system includes a laminate and a frame, wherein:

[0004] The laminate includes, from top to bottom, a front glass, a first adhesive film, a battery layer, a second adhesive film and a back glass, wherein the width of the front glass is greater than the width of the back glass;

[0005] The frame includes a buckle portion and a bearing portion, wherein the buckle portion is overlapped on the side edge of the front glass along the width direction of the laminate; the bearing portion is supported and arranged on the bottom of the back glass along the width direction of the laminate to carry the laminate.

[0006] In a specific implementation, the top of the buckle portion is higher than the front glass, and the buckle portion is inclined at one end close to the laminate.

[0007] In a specific implementation, the inclination angle of the top of the buckle portion close to one end of the laminate is 5° to 15°.

[0008] In a specific implementation, the top of the buckle portion is 1 mm to 2 mm higher than the top surface of the front glass.

[0009] In a specific implementation, the thickness of the front glass is greater than the thickness of the back glass.

[0010] In a specific implementation, the width of the front glass is 1 cm greater than the width of the back glass.

[0011] In a specific implementation, the buckle portion is connected to the front glass via silicone, and the bearing portion is connected to the back glass via silicone.

[0012] In a specific implementation, the contact length between the bearing portion and the back glass is 1 cm to 2 cm.

[0013] In a specific implementation, the thickness of the silicone between the bottom edge of the front glass and the frame is 0.5 cm to 1 cm.

[0014] In a specific implementation, 1 to 3 glue overflow grooves are respectively provided on the side and bottom surfaces of the frame.

[0015] The photovoltaic module system provided by the utility model includes a laminate and a frame, wherein: the laminate includes front glass, a first adhesive film, a cell layer, a second adhesive film and back glass in order from top to bottom; the width of the front glass is greater than the width of the back glass; the frame includes a buckle part and a bearing part, the buckle part is placed on the side edge of the front glass along the width direction of the laminate; the bearing part is supported and arranged at the bottom of the back glass along the width direction of the laminate to carry the laminate. Compared with the existing photovoltaic module system, the photovoltaic module system is provided with photovoltaic module glasses of different widths, that is, the width of the front glass is greater than the width of the back glass, so that the system can effectively reduce the back shading of the photovoltaic module, thereby improving the bifaciality of the photovoltaic module system. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific implementation of the utility model or the technical solution in the prior art, the following will briefly introduce the drawings required for the specific implementation or the prior art description. Obviously, the drawings described below are only some specific implementations of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0017] Figure 1 It is a schematic cross-sectional structural diagram of a photovoltaic module system according to a specific implementation mode of the utility model. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the specific implementation of the utility model more clear, the specific implementation of the utility model is further described in detail below with reference to the accompanying drawings. Here, the schematic specific implementation of the utility model and its description are used to explain the utility model, but are not used as limitations of the utility model.

[0019] like Figure 1 As shown, the utility model provides a photovoltaic module system, which is used to effectively reduce the back shading of the photovoltaic module, thereby improving the bifaciality of the photovoltaic module. The photovoltaic module system includes a laminate 6 and a frame 2, wherein:

[0020] The laminate 6 includes, from top to bottom, a front glass 4, a first adhesive film, a battery cell layer 7, a second adhesive film and a back glass 3, wherein the width of the front glass 4 is greater than the width of the back glass 3; the frame 2 includes a buckle portion 5 and a bearing portion 1, wherein the buckle portion 5 is overlapped on the side edge of the front glass 4 along the width direction of the laminate 6; the bearing portion 1 is supported and arranged at the bottom of the back glass 3 along the width direction of the laminate 6 to support the laminate 6.

[0021] In specific implementation, the buckle portion 5 can be arranged in a variety of embodiments, for example, Figure 1 As shown, the top of the buckle part 5 is higher than the front glass 4, and the end of the buckle part 5 close to the laminate 6 can be inclined. The height of the buckle part 5 is higher than the laminate 6, which can effectively fix the laminate 6 and improve the connection stability between the frame 2 and the laminate 6. The end of the buckle part 5 close to the laminate 6 is inclined, that is, the part of the buckle part 5 that contacts the laminate 6 has a slope, thereby avoiding the cleaning dead corner where dust is deposited, thereby reducing the daily cleaning work of maintenance personnel.

[0022] In a specific implementation, there are multiple implementation schemes for setting the inclination angle of the front end of the buckle portion 5. For example, the inclination angle of the top of the buckle portion 5 near one end of the laminate 6 can be 5° to 15°. The applicant takes into account that the inclination angle of the roof is usually 5° to 15°. The buckle portion 5 with an inclined front end can be horizontal when the laminate 6 is set on the roof, so that after rainwater washes the surface of the laminate 6, it directly takes away the surface dust from the frame 2, thereby avoiding hot spots and improving the overall power generation efficiency of the photovoltaic module system.

[0023] In a specific implementation, there may be a variety of implementation schemes for setting the height of the buckle portion 5 . For example, in order to effectively fix the laminate 6 and avoid dust deposition, the top of the buckle portion 5 may be 1 mm to 2 mm higher than the top surface of the front glass 4 .

[0024] In a specific implementation, the glass thickness of the laminate 6 can be set in a variety of embodiments, for example, Figure 1 As shown, the thickness of the front glass 4 may be greater than the thickness of the back glass 3 .

[0025] In a specific implementation, the width of the front glass 4 and the back glass 3 of the laminate 6 can be set in a variety of embodiments, for example, the width of the front glass 4 can be 1 cm greater than the width of the back glass 3. The width of the front glass 4 is greater than the back glass 3 and the cell layer 7, which can effectively improve the front power generation efficiency of the photovoltaic module, prevent the cell layer 7 from being blocked by the frame 2, and improve the front light entry rate.

[0026] In specific implementation, there are multiple implementations for fixing the laminate 6 to the frame 2. For example, the buckle portion 5 can be connected to the front glass 4 through silicone, and the bearing portion 1 can also be connected to the back glass 3 through silicone. The silicone connection is not only highly stable, but also easy to construct.

[0027] In a specific implementation, there are multiple implementation schemes for the arrangement of the bearing part and the back glass. For example, the contact length between the bearing part 1 and the back glass 3 can be 1 cm to 2 cm. The contact length of 1 cm to 2 cm can not only effectively carry the laminate 6, but also minimize the shading of the back of the laminate 6, thereby improving the power generation efficiency.

[0028] In a specific implementation, there are multiple implementations for setting the interval between the bottom edge of the front glass 6 and the frame 2. For example, the thickness of the silicone between the bottom edge of the front glass 6 and the frame 2 is 0.5 cm to 1 cm. When setting, it is necessary to leave a space between the bottom of the front glass 6 and the frame 2 for filling with silicone to ensure the connection stability between the laminate 6 and the frame 2.

[0029] In the specific implementation, the applicant considers that the groove of the ordinary solar frame is smooth, and some of the silicone will always overflow after being injected, which requires wiping and scraping, and the labor cost is high. Therefore, the side and bottom of the frame 2 can be respectively provided with 1 to 3 overflow glue grooves. The setting of the overflow glue groove allows the excess silicone to flow into the overflow glue groove, thereby reducing the wiping steps and reducing the labor cost.

[0030] In summary, the photovoltaic module system provided by the utility model comprises a laminate 6 and a frame 2, wherein: the laminate 6 comprises a front glass 4, a film, a cell layer 7, a film, and a back glass 3 from top to bottom; the frame 2 fixes the laminate 6 through a buckle portion 5 and a bearing portion 1: the buckle portion 5 is placed on the surface of the front glass 4 to press the relative position of the laminate 6 and the frame 2; the bearing portion 1 is supported and arranged at the bottom of the back glass 3 to bear the weight of the laminate 6; the width of the front glass 4 of the laminate 6 is greater than the width of the back glass 3. Compared with the existing photovoltaic module system, the photovoltaic module system is provided with laminate 6 glasses of different widths, that is, the width of the front glass 4 is greater than the width of the back glass 3, so that the system can effectively reduce the back shading of the laminate 6, thereby improving the bifaciality of the photovoltaic module system.

[0031] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of the utility model in detail. It should be understood that the above description is only the specific implementation method of the utility model and is not used to limit the protection scope of the utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A photovoltaic module system, characterized in that: The photovoltaic module system comprises a laminate and a frame, wherein: The laminate includes, from top to bottom, a front glass, a first adhesive film, a battery layer, a second adhesive film and a back glass, wherein the width of the front glass is greater than the width of the back glass; The frame includes a buckle portion and a bearing portion, wherein the buckle portion is placed on the side edge of the front glass along the width direction of the laminate; the bearing portion is supported and arranged on the bottom of the back glass along the width direction of the laminate to carry the laminate; The top of the buckle portion is higher than the front glass, and the buckle portion is inclined at one end close to the laminate; The inclination angle of the top of the buckle portion close to one end of the laminate is 5° to 15°.

2. The photovoltaic module system according to claim 1, characterized in that: The top of the buckle portion is 1 mm to 2 mm higher than the top surface of the front glass.

3. The photovoltaic module system according to claim 1, characterized in that: The thickness of the front glass is greater than the thickness of the back glass.

4. The photovoltaic module system according to claim 1, characterized in that: The width of the front glass is 1 cm greater than the width of the back glass.

5. The photovoltaic module system according to claim 1, characterized in that: The buckle part is connected to the front glass through silicone, and the bearing part is connected to the back glass through silicone.

6. The photovoltaic module system according to claim 1, characterized in that: The contact length between the bearing portion and the back glass is 1 cm to 2 cm.

7. The photovoltaic module system according to claim 5, characterized in that: The thickness of the silicone between the bottom edge of the front glass and the frame is 0.5 cm to 1 cm.

8. The photovoltaic module system according to claim 1, characterized in that: The side surface and bottom surface of the frame are respectively provided with 1 to 3 glue overflow grooves.

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