Photovoltaic module

Abstract

The utility model discloses a photovoltaic module, which comprises a frame (1) and a laminated piece arranged in the frame (1), the laminated piece comprises front plate glass, back plate glass (22) and battery pieces (21) arranged between the front plate glass and the back plate glass (22), and a gap is arranged between two adjacent battery pieces (21); the photovoltaic module further comprises a gap light reflecting structure, the gap light reflecting structure is pasted on the back plate glass (22) corresponding to the gap, and the gap light reflecting structure is composed of a white single-sided adhesive tape. According to the utility model, the problem of gap reflection of the photovoltaic module is solved by sticking the white single-sided adhesive tape on the back plate glass, the white single-sided adhesive tape is low in cost, simple to prepare, less in equipment investment, and free from the problems of bubbles, light leakage and electric conduction, and meanwhile, the white single-sided adhesive tape is long in quality guarantee period, easy to store and long in service life.

Description

Technical Field

[0001] The utility model relates to the technical field of solar cell manufacturing, in particular to a photovoltaic module. Background Art

[0002] At present, the continuous use of conventional energy has brought about a series of economic and social problems such as energy shortage and environmental degradation. The development of photovoltaic modules is one of the ways to solve the above problems. Therefore, countries around the world are actively developing photovoltaic modules, and high conversion efficiency and low cost are the main trends in the development of photovoltaic modules.

[0003] In recent years, in order to further develop and utilize solar energy and make full use of the effective use area of ​​photovoltaic modules, photovoltaic module efficiency enhancement modules have been developed, namely back-glazed glass modules and gap film modules.

[0004] At present, the price of back-glazed glass components is relatively high, and the glass is prone to cracking. Gap film components have problems such as complex process, easy to generate bubbles, easy to oxidize, difficult to maintain, possible light leakage and conductivity. Utility Model Content

[0005] In order to solve at least one technical problem of the prior art, the utility model provides a photovoltaic module.

[0006] In order to achieve the above-mentioned utility model object, the technical solution adopted by the utility model is: a photovoltaic module, comprising a frame and a laminated member arranged in the frame, a front plate of the laminated member, a back plate glass and a battery sheet arranged between the front plate glass and the back plate glass, and a gap is arranged between two adjacent battery sheets;

[0007] The photovoltaic assembly further includes a gap reflective structure, and the gap reflective structure is adhered to the back plate glass corresponding to the gap, and the gap reflective structure is composed of a white single-sided tape.

[0008] Furthermore, the white single-sided tape comprises an adhesive layer, a reflective layer, a substrate layer and a release layer which are stacked from top to bottom.

[0009] Furthermore, the adhesive layer is a pressure-sensitive adhesive, a curing adhesive or a hot-melt adhesive.

[0010] Furthermore, the adhesive layer is an acrylic pressure-sensitive adhesive.

[0011] Furthermore, the adhesive layer is a phenolic, epoxy or silicone curing adhesive.

[0012] Furthermore, the adhesive layer is butyl rubber, EVA or POE.

[0013] Furthermore, the gap reflective structure includes a first gap reflective tape and a second gap reflective tape, the first gap reflective tape is pasted on the transverse gap between two adjacent battery cells, and the first gap reflective tape at least covers the transverse gap, and the second gap reflective tape is pasted on the longitudinal gap between two adjacent battery cells, and the second gap reflective tape at least covers the longitudinal gap.

[0014] Furthermore, the gap reflective structure also includes a third gap reflective tape, and the third gap reflective tape is pasted at the pasting point of the first gap reflective tape and the second gap reflective tape.

[0015] Furthermore, the third gap reflective tape is circular, elliptical, quadrilateral or two oppositely arranged triangles.

[0016] Furthermore, the back panel glass is float glass or tempered glass.

[0017] The beneficial effects of the utility model are:

[0018] The utility model solves the problem of gap reflection of photovoltaic components by sticking white single-sided tape on the back plate glass. The white single-sided tape has low cost, simple preparation, small equipment investment, and no air bubble, light leakage and conductivity problems. At the same time, the white single-sided tape has a long shelf life, is easy to store, and has a long service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the back structure of the photovoltaic module of the utility model;

[0020] Figure 2 A cross-sectional view of white single-sided tape. DETAILED DESCRIPTION

[0021] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0022] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0023] In this application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the utility model and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0024] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those skilled in the art, the specific meanings of these terms in this utility model can be understood according to specific circumstances.

[0025] In addition, the terms "installed", "set", "provided with", "connected", "connected", and "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0026] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0027] Reference Figure 1The utility model provides a photovoltaic module, which includes a frame 1 and a laminated member arranged in the frame 1, a laminated member front plate, a back plate glass 22, and a cell 21 arranged between the front plate glass and the back plate glass 22, and a gap is arranged between two adjacent cells 21. The photovoltaic module also includes a gap reflective structure, which is pasted on the back plate glass 22 corresponding to the gap, and the gap reflective structure is composed of a white single-sided tape.

[0028] Furthermore, the white single-sided tape includes, from top to bottom, a stacked adhesive layer 34, a reflective layer 35, a substrate layer 36 and a release layer 37, wherein the adhesive layer may be made of pressure-sensitive adhesive, curing adhesive or hot-melt adhesive, the reflective layer 35 is made of highly reflective material, and the highly reflective material may be made of aluminum foil, titanium dioxide, calcium carbonate nano-silicon dioxide or alumina, the substrate layer 36 may be made of white polypropylene woven fiber cloth, the release layer 37 may be made of PET release film, and the adhesive layer may be made of pressure-sensitive adhesive, curing adhesive or hot-melt adhesive.

[0029] Furthermore, the adhesive layer may be made of acrylic pressure-sensitive adhesive.

[0030] Furthermore, the adhesive layer may be made of phenolic, epoxy or silicone curing adhesive.

[0031] Furthermore, the adhesive layer may be made of butyl rubber, EVA or POE.

[0032] Furthermore, the gap reflective structure includes a first gap reflective tape 31 and a second gap reflective tape 32. The first gap reflective tape 31 is pasted on the transverse gap between two adjacent battery cells 21, and the first gap reflective tape 31 at least covers the transverse gap. The second gap reflective tape 32 is pasted on the longitudinal gap between two adjacent battery cells 21, and the second gap reflective tape 32 at least covers the longitudinal gap.

[0033] As a preferred embodiment, the gap reflective structure further includes a third gap reflective tape 33, and the third gap reflective tape 33 is pasted at the pasting point of the first gap reflective tape 31 and the second gap reflective tape 32. The third gap reflective tape 33 can be an integral structure with the first gap reflective tape 31 and / or the second gap reflective tape 32.

[0034] Furthermore, the third gap reflective tape 33 can be configured to be circular, elliptical, quadrilateral, two oppositely arranged triangles or other shapes, and the third gap reflective tape 33 at least covers the gap formed by the corners of four adjacent battery cells.

[0035] Furthermore, the back panel glass 22 may be made of float glass or tempered glass, such as float glass.

[0036] The gap reflective structure of the utility model can be pasted on the back glass 22 after lamination of the laminate, or can be pasted on the back glass 22 before EL testing of the laminate, or can be pasted on the back glass 22 after EL testing of the laminate, or can be pasted on the back glass 22 after the laminate is framed.

[0037] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to the above embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the above embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A photovoltaic module, comprising a frame (1) and a laminated member arranged in the frame (1), characterized in that: The laminate comprises a front plate glass, a back plate glass (22), and a battery sheet (21) arranged between the front plate glass and the back plate glass (22), and a gap is arranged between two adjacent battery sheets (21); The photovoltaic assembly also includes a gap reflective structure, the gap reflective structure is adhered to the back plate glass (22) corresponding to the gap, and the gap reflective structure is composed of a white single-sided adhesive tape.

2. The photovoltaic module according to claim 1, characterized in that: The white single-sided adhesive tape comprises, from top to bottom, an adhesive layer (34), a reflective layer (35), a substrate layer (36) and a release layer (37) which are stacked.

3. The photovoltaic module according to claim 2, characterized in that: The adhesive layer (34) is a pressure-sensitive adhesive, a curing adhesive or a hot-melt adhesive.

4. The photovoltaic module according to claim 3, characterized in that: The adhesive layer (34) is an acrylic pressure-sensitive adhesive.

5. The photovoltaic module according to claim 3, characterized in that: The adhesive layer (34) is a phenolic, epoxy or silicone curing adhesive.

6. The photovoltaic module according to claim 3, characterized in that: The adhesive layer (34) is butyl rubber, EVA or POE.

7. The photovoltaic module according to any one of claims 1 to 6, characterized in that: The gap reflective structure comprises a first gap reflective tape (31) and a second gap reflective tape (32); the first gap reflective tape (31) is adhered to the transverse gap between two adjacent battery sheets (21); the first gap reflective tape (31) at least covers the transverse gap; the second gap reflective tape (32) is adhered to the longitudinal gap between two adjacent battery sheets (21); the second gap reflective tape (32) at least covers the longitudinal gap.

8. The photovoltaic module according to claim 7, characterized in that: The interstitial reflective structure further comprises a third interstitial reflective tape (33), wherein the third interstitial reflective tape (33) is pasted at the pasting point of the first interstitial reflective tape (31) and the second interstitial reflective tape (32).

9. The photovoltaic module according to claim 8, characterized in that: The third gap reflective tape (33) is circular, elliptical, quadrilateral or two oppositely arranged triangles.

10. The photovoltaic module according to any one of claims 1 to 6, characterized in that: The back plate glass (22) is float glass or tempered glass.

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