CN216749915U - Double-glass double-sided photovoltaic module - Google Patents
Double-glass double-sided photovoltaic module Download PDFInfo
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- CN216749915U CN216749915U CN202220144479.6U CN202220144479U CN216749915U CN 216749915 U CN216749915 U CN 216749915U CN 202220144479 U CN202220144479 U CN 202220144479U CN 216749915 U CN216749915 U CN 216749915U
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- glass
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- sided photovoltaic
- photovoltaic module
- double
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- 239000011521 glass Substances 0.000 title claims abstract description 72
- 239000005357 flat glass Substances 0.000 claims abstract description 23
- 238000000576 coating method Methods 0.000 claims abstract description 14
- 238000009434 installation Methods 0.000 claims description 12
- 239000011248 coating agent Substances 0.000 claims description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- 239000004033 plastic Substances 0.000 claims description 4
- 235000012239 silicon dioxide Nutrition 0.000 claims description 3
- 239000000377 silicon dioxide Substances 0.000 claims description 3
- 229910052709 silver Inorganic materials 0.000 claims description 3
- 239000004332 silver Substances 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 claims description 2
- 239000006117 anti-reflective coating Substances 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 abstract description 6
- 230000003287 optical effect Effects 0.000 description 9
- 239000000463 material Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 241001212149 Cathetus Species 0.000 description 3
- 239000004411 aluminium Substances 0.000 description 2
- 210000002469 basement membrane Anatomy 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005538 encapsulation Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 210000004379 membrane Anatomy 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 238000002310 reflectometry Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002313 adhesive film Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012217 deletion Methods 0.000 description 1
- 230000037430 deletion Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002077 nanosphere Substances 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 238000013041 optical simulation Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000013083 solar photovoltaic technology Methods 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
Images
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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- Photovoltaic Devices (AREA)
Abstract
The utility model relates to a two-sided photovoltaic module of two glasss. The double-glass double-sided photovoltaic module comprises front plate glass used for receiving direct light and back plate glass used for receiving reflected light, wherein at least two layers of antireflection coatings are covered on the light receiving surface of the back plate glass. The utility model has the advantages of backplate glass photic surface optics utilization ratio is high, light conversion efficiency is high.
Description
Technical Field
The utility model relates to a solar photovoltaic technology field especially relates to a two-sided photovoltaic module of two glasss.
Background
The front/back of the double-glass double-sided assembly can receive irradiation light, and the conversion efficiency of the assembly can be effectively improved.
Photovoltaic module's structure generally is front bezel glass, upper rubber membrane, battery piece cluster group, lower floor's glued membrane, backplate or backplate glass, and the subassembly that uses the backplate encapsulation generally is single glass assembly, uses the encapsulation of backplate glass then to be dual glass assembly. Glass is located the outermost layer of subassembly, the most important function is the protection subassembly and avoids the injury, in addition, must also have certain light transmissivity, the research of trade to the front bezel glass light transmissivity is more and more in recent years, the luminousness of front bezel glass is optimized to about 94% from 91% at first gradually, but everybody pays close attention to backplate face glass less, backplate glass's luminousness is still about 91%, double-glass assembly back optical utilization also receives the restriction, establish the two-sided subassembly structure and promote the original intention of subassembly conversion efficiency and generated energy and do not obtain the extension, mostly ann in the present situation.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a two-sided photovoltaic module of double glass to solve or at least alleviated one or more in the above-mentioned problem that exists among the prior art and the problem of other aspects.
An aspect of the utility model provides a two-sided photovoltaic module of two glasses, wherein, two-sided photovoltaic module of two glasses is including the backplate glass that is used for accepting the front bezel glass of direct light and is used for accepting the reverberation backplate glass's photic surface is covered and is had at least two-layer anti-reflection coating film.
In the basis the utility model discloses an in two-sided photovoltaic module of two glasss, optionally, at least two-layer anti-reflection coating film includes table rete and basement membrane, the thickness of table rete is 95nm to 130nm, the thickness of basement membrane is 65nm to 95 nm.
In the double-glass double-sided photovoltaic module according to the utility model, optionally, the anti-reflection coating film is a silicon dioxide layer.
According to the utility model discloses an in the two-sided photovoltaic module of two glasses, optionally, the two-sided photovoltaic module of two glasses further includes the frame, the frame includes main part and installation department, the installation department is in the one end of main part forms the mounting groove, front bezel glass with backplate glass passes through the mounting groove is installed in the frame.
According to the utility model discloses an in the two-sided photovoltaic module of two glasss, optionally, the frame is made by the aluminium alloy.
In the basis the utility model discloses an in two-sided photovoltaic module of two glasses, optionally, the installation department include certainly the main part one end outside extension first extension and be on a parallel with the terminal surface of the corresponding end of main part certainly the second extension that first extension extends, the installation slot forms the second extension with the main part between the terminal surface, the main part include with relative just distal end face and the orientation of keeping away from of corresponding end the inboard at two-sided photovoltaic module middle part of two glasses, the distal end face with inboard termination each other.
In the basis the utility model discloses an in two-sided photovoltaic module of two glasss, optionally, the frame is made by plastic material, and the frame inboard the surface is coated with the reflection stratum, the material of reflection stratum is pottery, aluminium or silver.
According to the utility model discloses an in the two-sided photovoltaic module of two glasss, optionally, inboard surface is the curved surface.
According to the utility model discloses an in two-sided photovoltaic module of two glasss, optionally, the curved surface is the zigzag curved surface, and the angle of its zigzag is 90 to 150 degrees.
According to the utility model discloses an among the two-sided photovoltaic module of two glasss, optionally, the curved surface is the wave.
According to the utility model discloses an among the two-sided photovoltaic module of two glasses, the photic surface through at backplate glass coats and has at least two-layer anti-reflection coating film, improves backplate glass's luminousness, and then improves two-sided photovoltaic module's of two glasses light conversion efficiency.
According to the utility model discloses in the two-sided photovoltaic module of further two glasss, through reducing sheltering from of frame to backplate glass photic surface, set up the plane of reflection that has high reflectance can on the frame simultaneously, increase the light of reflection on backplate glass, and then promote two-sided photovoltaic module's of two glasss back optical utilization ratio.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure, are incorporated in and constitute a part of this disclosure. The illustrative embodiments and their description in this application are intended to be illustrative of the application and are not intended to limit the scope of the application. In the drawings:
fig. 1 is a schematic view of the whole structure of the front glass and the back glass of the double-glass double-sided photovoltaic module according to the present invention.
Fig. 2 is a schematic view of an antireflection coating in the dual-glass dual-sided photovoltaic module shown in fig. 1.
Fig. 3 is a schematic structural diagram of a reflection layer on a frame of a double-glass double-sided photovoltaic module according to the present invention.
Fig. 4 is a schematic diagram of one of the situations of the double-glass double-sided photovoltaic module according to the present invention, in which the inner side of the frame is zigzag.
Fig. 5 is a schematic diagram of another situation of the double-glass double-sided photovoltaic module according to the present invention, in which the inner side of the frame is zigzag.
Fig. 6 is a schematic diagram of the double-glass double-sided photovoltaic module according to the present invention, wherein the inner side of the frame is wavy.
Description of the reference numerals
1: front plate glass, 2: back plate glass, 3: antireflection coating film, 4: frame, 5: a reflective layer;
3-1: top film, 3-2: a base film;
4-1: body portion, 4-2: mounting part, 4-3: mounting grooves;
4-1 a: distal end face, 4-1 b: an inner side;
4-2 a: first extension, 4-2 b: a second extension portion.
Detailed Description
First, it should be noted that the structural composition, characteristics, advantages and the like of the double-glazed double-sided photovoltaic module according to the present invention will be described below by way of example, however, all the descriptions should not be applied to form any limitation to the present invention.
In this document, the technical terms "first" and "second" are used for distinguishing expression purposes only and are not intended to indicate their order or relative importance. Furthermore, any single feature described or implicit in an embodiment herein or any single feature shown or implicit in the drawings or shown or implicit in the drawings may still allow any combination or deletion between such features (or equivalents thereof) without any technical barriers, such that further embodiments according to the present invention are considered within the scope of the claims herein. In addition, for simplicity of the drawings, identical or similar parts and features may be indicated in the same drawing only in one or several places.
First, as shown in fig. 1 and 2, the double-glass double-sided photovoltaic module comprises a front plate glass 1, a back plate glass 2 and at least two layers of antireflection coatings 3 covering the light receiving surface of the back plate glass 2. Specifically, the battery string set can be fixed between the front plate glass 1 and the back plate glass 2 through an adhesive film, the front plate glass 1 is used for receiving direct light, and the back plate glass 2 is used for receiving reflected light. The light transmittance of the back plate glass 2 can be improved by covering at least two layers of anti-reflection coating films 3 on the back plate glass 2, so that the back light utilization rate of the double-glass double-sided photovoltaic module is improved, and the overall optical utilization rate of the double-sided photovoltaic module is further improved.
As shown in fig. 2, the at least two antireflection coating films 3 illustratively include a top layer film 3-1 and a bottom layer film 3-2. The top layer film 3-1 may have a thickness of 95nm to 130nm, and the bottom layer film 3-2 may have a thickness of 65nm to 95 nm. Specifically, by studying the density and refractive index difference of the nanospheres of the film layers of the different antireflection coatings 3, performing optical simulation, matching optimal parameters, and studying the related material composite technology, it can be known that at least one of the following can be realized by the thicknesses: the absorption of the double-glass double-sided optical assembly to light is increased, reflection is reduced, and the light conversion efficiency is improved; the weather resistance of the material is improved; the appearance and color are improved to be consistent. Wherein, as an optional case, the antireflection coating 3 is a silicon dioxide layer.
Secondly, as shown in fig. 3, the double-glass double-sided photovoltaic module further comprises a frame 4, wherein the frame 4 comprises a main body part 4-1 and an installation part 4-2, the installation part 4-2 forms an installation groove 4-3 at one end of the main body part 4-1, and the front plate glass 1 and the back plate glass 2 are installed in the frame 4 through the installation groove 4-3. Specifically, the frame 4 is wrapped around the front glass 1 and the back glass 2 through the mounting grooves 4-3.
As shown in fig. 3, 4, 5 and 6 by way of example, the mounting portion 4-2 includes a first extension portion 4-2a extending outwardly from one end of the main body portion 4-1 and a second extension portion 4-2b extending from the first extension portion 4-2a in parallel with an end surface of the corresponding end of the main body portion 4-1, a mounting groove 4-3 is formed between the second extension portion 4-2b and the end surface of the main body portion 4-1, the main body portion 4-1 includes a distal end surface 4-1a opposite and distant from the corresponding end and an inner side 4-1b facing toward the middle of the dual-glass dual-sided photovoltaic module, and the distal end surface 4-1a and the inner side 4-1b are terminated to each other. Because the distal end surface 4-1a and the inner side 4-1b are mutually terminated, the distal end surface 4-1a and the inner side 4-1b are both finished at the intersection angle, and do not extend continuously after intersection to obstruct reflected light, which is beneficial to improving the back optical utilization rate of the double-glass double-sided photovoltaic module. In addition, from the overall structure, the main body part 4-1 and the mounting part 4-2 make the frame 4 have a "C" shape as a whole, and after the front glass 1 and the back glass 2 are mounted, the main body part 4-1 is located behind the back glass 2.
In addition, as an alternative, the frame 4 may be made of an aluminum profile. At this moment, aluminium material itself has high reflectivity, promotes on light reflection 2 photic surfaces of backplate glass, promotes two-sided photovoltaic module's of two glasss back optics utilization ratio.
Further, as an alternative, as shown in fig. 3, the frame 4 may be made of a plastic profile, and the surface of the inner side 4-1b of the frame 4 is covered with a reflective layer 5. The material of the reflective layer 5 may be ceramic, aluminum or silver. Specifically, utilize reflection stratum 5 to increase the light that reflects to on backplate glass 2's the photic surface to compensate the reverberation performance defect that frame 4 that plastic material made exists, promote two-sided photovoltaic module's of two glasss back optical utilization rate.
Specifically, in the present embodiment, as shown in fig. 4, 5 and 6, the surface of the inner side 4-1b on the frame 4 may be set to be a curved surface. Be favorable to improving the reflectivity of frame 4 more, be favorable to reflecting the photic surface of backplate glass 2 with optic fibre on, and then promote the two-sided photovoltaic module's of two glasss back optics utilization ratio.
As shown in fig. 4 and 5, as one of the optional cases of the curved surface, the curved surface may be a zigzag curved surface. In an alternative embodiment, the angle of the sawtooth may be 90 to 150 degrees. Such an angle arrangement can be beneficial to the optical fibers to be fully reflected to the light receiving surface of the back plate glass 2 by the surface of the inner side 4-1b of the frame 4, and further the optical utilization rate of the back plate glass 2 is improved.
As an alternative, the zigzag shape is a right triangle, as shown in fig. 4. In an optional embodiment, in each tooth groove of the sawtooth shape, a shorter cathetus and a hypotenuse in the right triangle are two inner wall surfaces of the tooth groove respectively, the shorter cathetus is positioned above the hypotenuse, and two adjacent tooth grooves are connected with the end point of the shorter cathetus of the other tooth groove through the top point of the hypotenuse of one tooth groove.
As shown in fig. 5, the zigzag shape is alternatively an isosceles triangle, and specifically, in each tooth slot of the zigzag shape, two equal sides of the isosceles triangle are two inner wall surfaces of the tooth slot.
As shown in fig. 6, as one of the optional cases of the curved surface, the curved surface is a wave shape.
Use the utility model discloses an each scheme can realize improving the optical utilization ratio on 2 photic surfaces of light transmissivity reinforcing backplate glass of backplate glass 2, and/or through the optimization to frame 4, improves frame 4's light transmissivity and light reflection efficiency, utilizes frame 4 more with light reflect backplate glass 2's photic on the surface, promotes the optical utilization ratio on 2 photic surfaces of backplate glass, and then, improves whole two-sided photovoltaic module's of two glasss light conversion rate.
The above is merely by way of example to clarify in detail the double-glazed double-sided photovoltaic module according to the present invention. These examples are provided only for illustrating the principles and embodiments of the present invention, and are not intended to limit the present invention. Various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the invention. Accordingly, all equivalent embodiments are intended to fall within the scope of the present invention and are defined by the various claims of the present invention.
Claims (10)
1. The double-glass double-sided photovoltaic module is characterized by comprising front plate glass used for receiving direct light and back plate glass used for receiving reflected light, wherein at least two layers of antireflection coatings are covered on the light receiving surface of the back plate glass.
2. The dual-glass dual-sided photovoltaic module according to claim 1, wherein the at least two antireflection coating films include a top film and a bottom film, the top film has a thickness of 95nm to 130nm, and the bottom film has a thickness of 65nm to 95 nm.
3. The dual-glass dual-sided photovoltaic module of claim 1, wherein the antireflective coating is a silicon dioxide layer.
4. The dual-glass dual-sided photovoltaic assembly of claim 1, further comprising a frame, wherein the frame comprises a main body portion and an installation portion, the installation portion forms an installation groove at one end of the main body portion, and the front plate glass and the back plate glass are installed in the frame through the installation groove.
5. The dual-glass, dual-sided photovoltaic assembly of claim 4, wherein the bezel is made of aluminum.
6. The dual-glass dual-sided photovoltaic assembly of claim 4, wherein the mounting portion includes a first extension extending outwardly from the one end of the main body portion and a second extension extending from the first extension parallel to an end face of the respective end of the main body portion, the mounting slot being formed between the second extension and the end face of the main body portion, the main body portion including a distal end face opposite and distal from the respective end and an inner side facing a middle of the dual-glass dual-sided photovoltaic assembly, the distal end face and the inner side terminating each other.
7. The dual-glass, dual-sided photovoltaic assembly of claim 6, wherein the bezel is made of plastic profile and a reflective layer is coated on a surface of the inner side of the bezel, the reflective layer being made of ceramic, aluminum or silver.
8. The dual-glass, bifacial photovoltaic module of claim 6, wherein the surface of said inner side is curved.
9. The dual-glass dual-sided photovoltaic module of claim 8, wherein the curved surface is a sawtooth curved surface having a sawtooth angle of 90 to 150 degrees.
10. The dual-glass dual-sided photovoltaic assembly of claim 8, wherein the curved surface is wave-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220144479.6U CN216749915U (en) | 2022-01-19 | 2022-01-19 | Double-glass double-sided photovoltaic module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220144479.6U CN216749915U (en) | 2022-01-19 | 2022-01-19 | Double-glass double-sided photovoltaic module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216749915U true CN216749915U (en) | 2022-06-14 |
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ID=81913411
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220144479.6U Active CN216749915U (en) | 2022-01-19 | 2022-01-19 | Double-glass double-sided photovoltaic module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216749915U (en) |
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2022
- 2022-01-19 CN CN202220144479.6U patent/CN216749915U/en active Active
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Address after: 314417 No. 1 Jisheng Road, Jiaxing City, Zhejiang Province Patentee after: Zhengtai Xinneng Technology Co.,Ltd. Address before: 314417 No. 1 Jisheng Road, Jiaxing City, Zhejiang Province Patentee before: Zhengtai Xinneng Technology Co.,Ltd. |