Photovoltaic module

Abstract

The utility model discloses a photovoltaic assembly. The photovoltaic module comprises a first panel, a first adhesive film, a battery main body, a second adhesive film, a gap pasting film and a second panel which are sequentially stacked, wherein the second panel is glazed backboard glass. According to the photovoltaic module, optical gap reflection can be utilized to the maximum extent, the power of the photovoltaic module can be improved, the production cost of the module can be effectively controlled, the gap adhesive film and the glazed backboard glass are arranged, generation of film pasting bubbles can be reduced, the power of the module is improved, and the production efficiency is improved. Through actual verification, the reflection gain can be about 1.6% by superposing the reflection film on the basis of the glazed glass, the power of the photovoltaic module can be increased, and the overall shift rate of the product is improved.

Description

Technical Field

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

[0002] Photovoltaic modules are the core and most important part of solar power generation systems. Their core function is to convert solar energy into electrical energy. The structure of photovoltaic modules generally includes a front panel, a front film, a battery string, a back film, and a back panel. For example, there are two main types of double-glass photovoltaic module structures in the prior art. The first type is coated tempered glass, a high-transmittance film, a battery string, a cut-off film, and a glazed back glass. In this structure, the gap reflection gain of the glazed glass is about 0.8%, and the gap reflection gain still needs to be improved, and there is a problem of low light utilization due to diffuse reflection; the second type is coated tempered glass, a high-transmittance film, a battery string, a cut-off film, a gap film, and a back glass. In this structure, the gap film reflection gain is about 1.3%, and the light utilization rate is high, but the gap film cannot cover all the gaps, and bubbles are easily generated between the gap film and the back glass. The number of processes at the module end increases, resulting in increased production costs. Utility Model Content

[0003] Based on this, it is necessary to provide a photovoltaic module. The photovoltaic module of the utility model can make the most of the optical gap reflection, improve the power of the photovoltaic module, and effectively control the production cost of the module.

[0004] An embodiment of the present application provides a photovoltaic module.

[0005] A photovoltaic component comprises a first panel, a first adhesive film, a battery body, a second adhesive film, a gap film and a second panel which are stacked in sequence, wherein the second panel is a glazed back panel glass.

[0006] In some embodiments, the first panel is a coated tempered glass.

[0007] In some embodiments, the first adhesive film is a high-transmittance adhesive film.

[0008] In some embodiments, the second adhesive film is a cut-off adhesive film.

[0009] In some embodiments, the battery body includes a battery cell, or a battery string including a plurality of battery cells connected in series, or a plurality of battery strings connected in series or in parallel.

[0010] In some of the embodiments, the glazed back panel glass has a plurality of glazed strips spaced apart along the length direction and the width direction.

[0011] In some embodiments, the gap film is disposed at least at an edge of the second panel.

[0012] In some embodiments, the photovoltaic assembly further includes a junction box, and the junction box is electrically connected to the battery body.

[0013] In some embodiments, the photovoltaic module further includes a packaging component, and the first panel, the first adhesive film, the battery body, the second adhesive film, the gap film, and the second panel are laminated and then packaged by the packaging component.

[0014] In some embodiments, the packaging component includes a frame.

[0015] The above photovoltaic modules can maximize the use of optical gap reflection, improve the power of photovoltaic modules, and effectively control the production cost of modules. Specifically, this application can reduce the generation of film bubbles and improve the module power by setting gap adhesive film and glazed back glass. This application has verified through actual practice that superimposing a reflective film on the glazed glass can achieve a reflection gain of about 1.6%, which can increase the power of photovoltaic modules and improve the overall product upgrade rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application, and those skilled in the art can obtain other drawings based on these drawings without creative work.

[0017] In order to more completely understand the present application and its beneficial effects, the following description will be made in conjunction with the accompanying drawings. In the following description, the same reference numerals represent the same parts.

[0018] Figure 1 This is a schematic diagram of a photovoltaic assembly according to an embodiment of the utility model;

[0019] Figure 2 It is a schematic diagram of a gap film and a second panel of a photovoltaic module according to an embodiment of the utility model.

[0020] Description of Reference Numerals

[0021] 10. Photovoltaic module; 100. First panel; 200. First adhesive film; 300. Battery body; 400. Second adhesive film; 500. Gap film; 600. Second panel; 700. Junction box; 800. Packaging component. DETAILED DESCRIPTION

[0022] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0023] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0024] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0026] In the description of the present utility model, "several" means more than one, "many" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used to distinguish the technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0028] In the present disclosure, the terms "light-receiving surface" and "backlight surface" are used only to distinguish the locations of two opposite surfaces of the battery substrate. In actual working conditions, the "light-receiving surface" is the surface of the battery substrate that mainly receives light, but the "backlight surface" does not necessarily not receive light. On the contrary, due to the existence of diffusely reflected light, the "backlight surface" can also receive light in actual working conditions.

[0029] The embodiment of the present application provides a photovoltaic module 10 to solve at least one of the following problems: when the double-glass photovoltaic module 10 in the conventional technology uses glazed glass, the gap reflection gain still needs to be improved, and there is diffuse reflection resulting in low light utilization; when the gap film 500 is used, the gap cannot be covered completely, and bubbles are easily generated between the gap film 500 and the back plate glass, and the number of module-side processes increases, resulting in increased production costs. The photovoltaic module 10 will be described below in conjunction with the accompanying drawings.

[0030] The photovoltaic assembly 10 provided in the embodiment of the present application is exemplary, see Figure 1 As shown, Figure 1 The photovoltaic module 10 of the present application can improve the module power.

[0031] In order to more clearly illustrate the structure of the photovoltaic module 10, the photovoltaic module 10 will be introduced below with reference to the accompanying drawings. Figure 1 As shown, Figure 1A schematic diagram of the structure of a photovoltaic module 10 provided in an embodiment of the present application. A photovoltaic module 10 includes a first panel 100, a first adhesive film 200, a battery body 300, a second adhesive film 400, a gap film 500 and a second panel 600 stacked in sequence. The second panel 600 is a glazed back panel glass. It should be noted that the first panel 100 is a light-receiving surface, and the second panel 600 is a backlight surface.

[0032] In some embodiments, the first panel 100 is a coated tempered glass.

[0033] In some embodiments, the first adhesive film 200 is a high-transmittance adhesive film.

[0034] In some embodiments, the second adhesive film 400 is a cut-off adhesive film.

[0035] In some embodiments, the battery body 300 includes a battery cell.

[0036] In some embodiments, the battery body 300 is a battery string in which a plurality of battery cells are connected in series.

[0037] In some embodiments, the battery body 300 is a plurality of battery strings connected in series or in parallel.

[0038] In some of the embodiments, the glazed back panel glass has a plurality of glazed strips spaced apart along the length direction and the width direction.

[0039] In some of these embodiments, see Figure 2 As shown, Figure 2 Schematic diagram of a gap film 500 and a second panel 600 of a photovoltaic module 10 according to an embodiment of the present invention. The gap film 500 is disposed at least at an edge of the second panel 600 .

[0040] In some embodiments, the first panel 100 is in a rectangular shape, and the second panel 600 is in the same shape as the first panel 100. The laminate formed by laminating the first panel 100, the first adhesive film 200, the battery body 300, the second adhesive film 400, the gap film 500, and the second panel 600 has a rectangular structure as a whole.

[0041] In some of these embodiments, see Figure 1 As shown, the photovoltaic assembly 10 further includes a junction box 700 . The junction box 700 is electrically connected to the battery body 300 .

[0042] In some of these embodiments, see Figure 1As shown, the photovoltaic module 10 further includes a packaging component 800. The first panel 100, the first adhesive film 200, the battery body 300, the second adhesive film 400, the gap film 500 and the second panel 600 are laminated and then packaged by the packaging component 800.

[0043] In some of these embodiments, package component 800 includes a border.

[0044] In some embodiments, the frame includes a long frame and a short frame, and adjacent frames are connected by angle codes.

[0045] Example 1

[0046] This embodiment provides a double-glass photovoltaic module 10.

[0047] The double-glass photovoltaic module 10 of this embodiment includes a first panel 100, a first adhesive film 200, a battery body 300, a second adhesive film 400, a gap film 500 and a second panel 600 which are stacked in sequence. The double-glass photovoltaic module 10 of this embodiment also includes a junction box 700 and a packaging component 800. Among them, the second panel 600 is a glazed back panel glass. The first panel 100 is a coated tempered glass. The first adhesive film 200 is a high-transmittance adhesive film. The second adhesive film 400 is a cut-off adhesive film. The battery body 300 is a plurality of battery strings connected in series, and the battery string is electrically connected to the wire box. The laminated parts after the first panel 100, the first adhesive film 200, the battery body 300, the second adhesive film 400, the gap film 500 and the second panel 600 are laminated are connected by a packaging component 800, and the packaging component 800 includes a long frame and a short frame.

[0048] A gain test was performed on the double-glass photovoltaic module 10 of this embodiment.

[0049] Comparative Example 1

[0050] This comparative example provides a double-glass photovoltaic module 10 .

[0051] The double-glass photovoltaic module 10 of this comparative example is substantially the same as that of Example 1, except that the gap film 500 is not included in this comparative example.

[0052] The double-glass photovoltaic module 10 of this comparative example includes a first panel 100, a first adhesive film 200, a battery body 300, a second adhesive film 400 and a second panel 600 which are stacked in sequence. The double-glass photovoltaic module 10 of this embodiment also includes a junction box 700 and a packaging component 800. Among them, the second panel 600 is a glazed backboard glass. The first panel 100 is a coated tempered glass. The first adhesive film 200 is a high-transmittance adhesive film. The second adhesive film 400 is a cut-off adhesive film. The battery body 300 is a plurality of battery strings connected in series, and the battery string is electrically connected to the wire box. The laminated parts after the first panel 100, the first adhesive film 200, the battery body 300, the second adhesive film 400 and the second panel 600 are laminated are connected by a packaging component 800, and the packaging component 800 includes a long frame and a short frame.

[0053] A gain test of the double-glass photovoltaic module 10 of Comparative Example 1 was performed.

[0054] Comparative Example 2

[0055] This comparative example provides a double-glass photovoltaic module 10 .

[0056] The double-glass photovoltaic module 10 of this comparative example is substantially the same as that of Example 1, except that the second panel 600 of this comparative example is a common back panel glass.

[0057] The double-glass photovoltaic module 10 of this comparative example includes a first panel 100, a first adhesive film 200, a battery body 300, a second adhesive film 400, a gap film 500 and a second panel 600 which are stacked in sequence. The double-glass photovoltaic module 10 of this embodiment also includes a junction box 700 and a packaging component 800. Among them, the second panel 600 is an ordinary back panel glass. The first panel 100 is a coated tempered glass. The first adhesive film 200 is a high-transmittance adhesive film. The second adhesive film 400 is a cut-off adhesive film. The battery body 300 is a plurality of battery strings connected in series, and the battery string is electrically connected to the wire box. The laminated parts after the first panel 100, the first adhesive film 200, the battery body 300, the second adhesive film 400, the gap film 500 and the second panel 600 are laminated are connected by a packaging component 800, and the packaging component 800 includes a long frame and a short frame, wherein the length of the long frame is 182 mm and the length of the short frame is 72 mm.

[0058] A gain test of the double-glass photovoltaic module 10 of Comparative Example 2 was performed.

[0059] By comparison, the gain in Example 1 is 9 W, the gain in Comparative Example 1 is 4.8 W, and the gain in Comparative Example 2 is 7.3 W. Compared with the photovoltaic modules 10 in Comparative Examples 1 and 2, the double-glass photovoltaic module 10 in Example 1 can improve the emission gain.

[0060] In summary, the photovoltaic module 10 can maximize the use of optical gap reflection, improve the power of the photovoltaic module 10, and effectively control the production cost of the module. Specifically, the present application can reduce the generation of film bubbles and improve the module power by setting a gap adhesive film and glazed back glass. The present application has verified through actual practice that superimposing a reflective film on the glazed glass can achieve a reflection gain of about 1.6%, which can increase the power of the photovoltaic module 10 and improve the overall product upgrade rate.

[0061] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0062] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0063] The above-mentioned embodiments only express several implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, and these all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A photovoltaic module (10), characterized in that: It comprises a first panel (100), a first adhesive film (200), a battery body (300), a second adhesive film (400), a gap film (500) and a second panel (600) which are stacked in sequence, wherein the second panel (600) is a glazed back panel glass.

2. The photovoltaic assembly (10) according to claim 1, characterized in that: The first panel (100) is coated tempered glass.

3. The photovoltaic assembly (10) according to claim 1, characterized in that: The first adhesive film (200) is a high-transmittance adhesive film.

4. The photovoltaic assembly (10) according to claim 1, characterized in that: The second adhesive film (400) is a cut-off adhesive film.

5. The photovoltaic module (10) according to any one of claims 1 to 4, characterized in that: The battery body (300) comprises a battery cell, or a battery string in which a plurality of battery cells are connected in series, or a plurality of battery strings connected in series or in parallel.

6. The photovoltaic module (10) according to any one of claims 1 to 4, characterized in that: The glazed back panel glass has a plurality of glazed strips distributed at intervals along the length direction and the width direction.

7. The photovoltaic module (10) according to any one of claims 1 to 4, characterized in that: The gap film (500) is provided at least at the edge of the second panel (600).

8. The photovoltaic module (10) according to any one of claims 1 to 4, characterized in that: The photovoltaic assembly (10) further comprises a junction box (700), wherein the junction box (700) is electrically connected to the battery body (300).

9. The photovoltaic module (10) according to any one of claims 1 to 4, characterized in that: The photovoltaic module (10) further comprises a packaging component (800), wherein the first panel (100), the first adhesive film (200), the battery body (300), the second adhesive film (400), the gap film (500) and the second panel (600) are laminated and then packaged by the packaging component (800).

10. The photovoltaic assembly (10) according to claim 9, characterized in that: The packaging component (800) comprises a frame.

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