CN218731000U

CN218731000U - Photovoltaic glass and photovoltaic module

Info

Publication number: CN218731000U
Application number: CN202222077708.XU
Authority: CN
Inventors: 陈克勤; 陈诚; 龚海丹; 吕俊
Original assignee: Longi Green Energy Technology Co Ltd
Current assignee: Longi Green Energy Technology Co Ltd
Priority date: 2022-08-08
Filing date: 2022-08-08
Publication date: 2023-03-24
Anticipated expiration: 2032-08-08

Abstract

The present disclosure relates to a photovoltaic glass and photovoltaic module, the photovoltaic glass includes: the glass sheet comprises a first surface and a second surface which are opposite, a glass coating layer, a transparent conductor and a transparent insulating layer, wherein the glass coating layer covers the first surface and the second surface respectively, and the transparent conductor comprises a first conductor and a second conductor; the first conductor is arranged between the first surface and the surface of the glass coating layer far away from the glass original sheet; the second conductor is arranged between the second surface and the surface of the glass coating layer far away from the glass original sheet; the first conductor and the second conductor are respectively used for being electrically connected with two electrodes of an energy storage battery. Through above-mentioned technical scheme, photovoltaic glass and photovoltaic module that this disclosure provided can solve photovoltaic module and take place the technical problem of electric potential induced attenuation.

Description

Photovoltaic glass and photovoltaic module

Technical Field

The disclosure relates to the technical field of solar glass, in particular to photovoltaic glass and a photovoltaic module.

Background

When the photovoltaic module is used outdoors for a long time, potential Induced Degradation (PID) can occur, the power of the module can be reduced, and the outdoor power generation amount is influenced. PID is caused by the high potential difference between the cells within the module to the external frame of the module due to the fact that the modules are connected in series to form an array, the system voltage is formed inside the module, and the outside of the module is grounded.

At present, the IEC61215 standard is incorporated into a PID test, so that a photovoltaic module needs to meet the PID test, in order to meet the requirement, the general photovoltaic module adopts schemes of PID-resistant packaging materials, PID-resistant batteries and the like to reduce PID influence, but high potential difference between the inside and the outside of the module still exists and cannot be completely eliminated.

SUMMERY OF THE UTILITY MODEL

The purpose of this disclosure is to provide a photovoltaic glass and photovoltaic module to solve the technical problem that photovoltaic module takes place the induced decay of electric potential.

In order to achieve the above object, the present disclosure provides a photovoltaic glass comprising: the glass sheet comprises a first surface and a second surface which are opposite, a glass coating layer, a transparent and insulating layer, and a transparent conductor, wherein the glass coating layer covers the first surface and the second surface respectively, and the transparent conductor comprises a first conductor and a second conductor; the first conductor is arranged between the first surface and the surface of the glass coating layer far away from the glass original sheet; the second conductor is arranged between the second surface and the surface of the glass coating layer far away from the glass original sheet; the first conductor and the second conductor are respectively used for being electrically connected with two electrodes of an energy storage battery.

Optionally, the first conductor is disposed between the first surface and the glass coating layer, and the second conductor is disposed between the second surface and the glass coating layer.

Optionally, the first conductor is embedded in the glass coating of the first surface, and the second conductor is embedded in the glass coating of the second surface.

Optionally, the first conductor and the second conductor are each configured as a linear structure, the first conductor and the second conductor are respectively bent and extended to form a grid-like structure, and the first conductor and the second conductor are aligned with each other along the thickness direction of the glass original sheet.

Optionally, the first and second electrical conductors have a width of 0.1mm to 0.5mm.

Optionally, the transparent conductor is made of zinc oxide or indium tin oxide.

Optionally, the first conductor is electrically connected to the energy storage battery through a first lead-out terminal, the first lead-out terminal extends out from between the first surface and the glass coating layer, or the first lead-out terminal extends out from the glass coating layer; the second conductor is electrically connected with the energy storage battery through a second leading-out end, the second leading-out end extends out from the position between the second surface and the glass coating layer, or the second leading-out end extends out from the glass coating layer.

Optionally, the glass coating layer is made of silicon dioxide, sodium silicate and calcium silicate.

Optionally, the thickness of the glass coating layer is 100 μm to 300 μm.

On the basis of the technical scheme, the present disclosure further provides a photovoltaic module for electrically connecting with an inverter, the photovoltaic module includes a back plate, a solar battery pack and a cover plate, which are sequentially stacked from bottom to top, wherein the solar battery pack includes a plurality of solar cells arranged in an array and electrically connected, at least one of the back plate and the cover plate is configured as the photovoltaic glass in the technical scheme, the second surface faces the solar cells, the photovoltaic module further includes an energy storage cell and a voltage boost circuit, a first electrode and a second electrode of the energy storage cell can be electrically connected with the first conductor and the second conductor respectively, the first electrode is grounded, and the polarity of the first electrode is the same as the polarity of the ground terminal of the inverter; the boosting circuit is electrically connected to the first conductor and the second conductor, and the boosting circuit is configured to boost a voltage between the first conductor and the second conductor to a voltage equal to a voltage of the solar cell array.

Optionally, the transparent conductor is not shielded above the solar cell in the thickness direction of the photovoltaic module.

Optionally, the energy storage cell and the voltage boosting circuit are not shielded above the solar cell along the thickness direction of the photovoltaic module.

Optionally, the energy storage battery and the voltage boosting circuit are arranged on one surface of the back plate, which is far away from the solar battery pack; or the energy storage battery and the booster circuit are arranged in a junction box of the photovoltaic module; or the energy storage battery and the booster circuit are arranged between the back plate and the cover plate.

Optionally, the photovoltaic module further comprises a frame, the frame is made of metal, and the frame is grounded.

Optionally, the photovoltaic module further includes a packaging adhesive film layer, and the packaging adhesive film layer is disposed between the photovoltaic glass and the solar battery pack, and between the solar battery pack and the back plate.

Through above-mentioned technical scheme, in the photovoltaic glass that this disclosure provided, glass coating film layer all covers on first surface and the second surface of glass original sheet, and first surface is equipped with first electric conductor, and the second surface is equipped with the second electric conductor. Because the first conductor and the second conductor can be electrically connected with two electrodes of the energy storage battery respectively, voltage can be formed between the glass coating layer on the first surface and the glass coating layer on the second surface. When the photovoltaic glass is applied to a photovoltaic module, zero potential difference can be formed between the second electric conductor of the photovoltaic glass and a solar battery pack in the photovoltaic module, so that no electric field is formed between the photovoltaic glass and the solar battery pack, and the potential induced attenuation can be avoided.

This photovoltaic module that this disclosure provided has the same technological effect with the photovoltaic glass among the above-mentioned technical scheme, in order to avoid unnecessary repetition, do not do here and describe repeatedly, in addition, in this photovoltaic module of this disclosure, boost circuit can amplify the output voltage of energy storage battery several times, make the voltage between first electric conductor and the second electric conductor the same with the voltage of solar cell group, again because first electrode ground connection, and the polarity of first electrode is the same with the polarity of the earthing terminal of dc-to-ac converter, can make first electric conductor ground connection, no potential difference between second electric conductor and the solar cell group, no potential difference and ion migration phenomenon inside and outside photovoltaic module promptly, thereby can avoid the emergence of the induced decay of electric potential.

Additional features and advantages of the disclosure will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:

FIG. 1 is a top view of a photovoltaic glass according to one embodiment of the present disclosure;

FIG. 2 is a top view of a photovoltaic glass according to another embodiment of the present disclosure;

FIG. 3 is a schematic cross-sectional view of a photovoltaic glass in an embodiment of the present disclosure;

FIG. 4 is a top view of a photovoltaic module according to one embodiment of the present disclosure;

FIG. 5 is a top view of a photovoltaic module according to another embodiment of the present disclosure;

fig. 6 is a schematic structural diagram of a photovoltaic module according to an embodiment of the present disclosure.

Description of the reference numerals

101-photovoltaic glass, 1-glass original sheet, 11-first surface, 12-second surface, 2-glass coating layer, 3-transparent conductor, 31-first conductor, 32-second conductor, 4-backboard, 5-solar battery, 51-solar battery, 6-energy storage battery, 7-booster circuit, 8-frame, 9-packaging adhesive film layer and 10-cover plate.

Detailed Description

The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.

In the present disclosure, unless otherwise stated, the use of the directional terms such as "upper and lower" generally means that the photovoltaic module is in the upper and lower states in normal use, i.e. the surface of the photovoltaic module facing the sun is upper and the side facing away from the sun is lower, and referring to the directions of the drawing of fig. 3 and 6, "inner and outer" means inner and outer relative to the profile of the corresponding component part itself. The terms "first," "second," and the like, as used in this disclosure, are intended to distinguish one element from another, and not necessarily for sequential or importance. In addition, when the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated.

According to an embodiment of the present disclosure, there is provided a photovoltaic glass 101, as shown in fig. 1 to 6, the photovoltaic glass 101 may include a glass original sheet 1, a glass coating layer 2 and a transparent conductor 3, wherein the glass original sheet 1 has a first surface 11 and a second surface 12 opposite to each other, the glass coating layer 2 is transparent and insulating, the first surface 11 and the second surface 12 may be covered with the glass coating layer 2 respectively so that the photovoltaic glass 101 has a desired refractive index, the transparent conductor 3 may include a first conductor 31 and a second conductor 32, the first conductor 31 may be disposed between the first surface 11 and a surface of the glass coating layer 2 covering the first surface 11, the surface being away from the glass original sheet 1, the second conductor 32 may be disposed between the second surface 12 and a surface of the glass coating layer 2 covering the second surface 12, the surface being away from the glass original sheet 1, the first conductor 31 and the second conductor 32 are respectively configured to be electrically connected to two electrodes (not shown) of the energy storage cell 6, so that a solar cell set 5 having the same voltage as that is formed between the first conductor 31 and the second conductor 32.

Through the technical scheme, in the photovoltaic glass 101 provided by the disclosure, the first surface 11 and the second surface 12 of the glass original sheet 1 are both covered with the glass coating layer 2, the first surface 11 is provided with the first conductor 31, and the second surface 12 is provided with the second conductor 32. Since the first conductor 31 and the second conductor 32 can be electrically connected to the two electrodes of the energy storage cell 6, respectively, a voltage can be generated between the glass-coated layer 2 on the first surface 11 and the glass-coated layer 2 on the second surface 12. When the photovoltaic glass 101 is applied to a photovoltaic module, zero potential difference can be formed between the second conductor 32 of the photovoltaic glass 101 and the solar cell 5 in the photovoltaic module, so that no electric field is formed between the photovoltaic glass 101 and the solar cell 5, and the occurrence of potential induced degradation can be avoided.

According to an embodiment of the present disclosure, the first electrical conductor 31 may be sandwiched between the first surface 11 of the glass blank 1 and the glass coating layer 2, and the second electrical conductor 32 may be sandwiched between the second surface 12 of the glass blank 1 and the glass coating layer 2.

According to another embodiment of the present disclosure, the first electrical conductor 31 may be embedded in the glass coating 2 covering the first surface 11, and the second electrical conductor 32 may be embedded in the glass coating 2 covering the second surface 12.

Through the technical scheme, the first conductor 31 and the second conductor 32 can be wrapped by the transparent and insulating glass coating layer 2, so that the outer surface of the photovoltaic glass 101 is kept insulating.

Referring to fig. 1, 2, 4 and 5, each of the first and

second conductors

31 and 32 may be configured as a linear structure, each of the first and

second conductors

31 and 32 may be bent and extended to form a grid structure, and the first and

second conductors

31 and 32 may be aligned with each other in a thickness direction of the glass original sheet 1, that is, the grid structure formed by the first conductor 31 and the grid structure formed by the second conductor 32 are aligned and overlapped with each other in the thickness direction of the glass original sheet 1. As shown in fig. 4 and 5, each grid of the grid-like structure is used for accommodating a solar cell 51, which is described below, in the thickness direction of the glass original sheet 1, and the projection of the solar cell 51 on the photovoltaic glass can fall in the grid of the grid-like structure, so as to avoid the first conductor 31 and the second conductor 32 from shielding the solar cell 51 and affecting the power generation efficiency of the solar cell 51. As an embodiment, as shown in fig. 1, each grid of the grid-like structure may accommodate one solar cell 51. Referring to fig. 2, as another embodiment, each of the grids of the grid-like structure may accommodate a plurality of solar cells 51.

In the embodiment of the present disclosure, the width of the line-shaped structure of the first and

second conductors

31 and 32 may be 0.1mm to 0.5mm, so as to avoid the decrease in the number of solar cells 51 to be described below due to the excessive width of the first and

second conductors

31 and 32. For example, the widths of the line-type structures of the first and

second conductors

31 and 32 may be 0.1mm, 0.15mm, 0.2mm, 0.3mm, 0.4mm, 0.45mm, 0.5mm, and the like.

In the embodiment of the present disclosure, the transparent conductor 3 may be made of a transparent and conductive material to reduce the shielding of sunlight, and the transparent conductor 3 may be made of an oxide such as zinc oxide or indium tin oxide, which has good conductivity and is conveniently disposed on the glass original sheet 1 by magnetron sputtering, dipping, spraying or chemical deposition.

In the embodiment of the present disclosure, the first conductive body 31 may be electrically connected to the energy storage battery 6 through a first lead-out terminal (not shown), the first lead-out terminal may extend from between the first surface 11 and the glass coating layer 2 or may extend from the glass coating layer 2 so as to be electrically connected to a first electrode of the energy storage battery 6, the second conductive body 32 may be electrically connected to the energy storage battery 6 through a second lead-out terminal (not shown), and the second lead-out terminal may extend from between the second surface 12 and the glass coating layer 2 or may extend from the glass coating layer 2 so as to be electrically connected to a second electrode of the energy storage battery 6.

In the embodiment of the present disclosure, the material of the glass coating layer 2 may be the same as the glass raw sheet, and specifically, the material of the glass coating layer 2 may be silicon dioxide, sodium silicate, and calcium silicate. The thickness of the glass coating 2 may be 100 to 300 μm to provide the photovoltaic glass 101 with a desired refractive index.

On the basis of the above technical solution, the present disclosure further provides a photovoltaic module, the photovoltaic module is configured to be electrically connected to an inverter, one end of the inverter is grounded, as shown in fig. 4 to 6, the photovoltaic module may include a back plate 4, a solar battery 5, and a cover plate 10, which are sequentially stacked from bottom to top, where the solar battery 5 may include a plurality of solar cells 51 arranged in an array and electrically connected to each other, at least one of the back plate 4 and the cover plate 10 may be configured as the photovoltaic glass 101 in the above technical solution, and the second surface 12 in the photovoltaic glass 101 faces the solar cells 51, when the back plate 4 is the photovoltaic glass 101 and the cover plate 10 is not the photovoltaic glass 101, the cover plate 10 may be transparent glass, and when the cover plate 10 is the photovoltaic glass 101 and the back plate 4 is not the photovoltaic glass 101, the back plate 4 may be transparent glass or an opaque plate-shaped structure. The photovoltaic module may further include an energy storage cell 6 and a voltage boost circuit 7, a first electrode (not shown) and a second electrode (not shown) of the energy storage cell 6 may be electrically connected to the first conductor 31 and the second conductor 32, respectively, one of the first electrode and the second electrode is a positive electrode, the other is a negative electrode, the energy storage cell 6 may be a lithium battery or a lead-acid battery, wherein the first electrode is grounded, the polarity of the first electrode may be the same as the polarity of the ground terminal of the inverter, the voltage boost circuit 7 may be electrically connected to the first conductor 31 and the second conductor 32, and the voltage boost circuit 7 may be configured as a small current amplification circuit chip with a maximum voltage amplification factor of 500 times, so that the voltage boost circuit 7 may boost the voltage between the first conductor 31 and the second conductor 32 to be the same as the voltage of the solar battery 5.

Referring to fig. 3 and 6, taking the case that the cover plate 10 of the photovoltaic module is configured as a photovoltaic glass 101 and the positive terminal of the inverter is grounded, the solar battery 5 of the photovoltaic module at the negative terminal of the inverter is at a negative potential, the first conductor 31 and the second conductor 32 of the photovoltaic glass 101 are connected with the energy storage battery 6 and the booster circuit 7, wherein the first conductor 31 at the upper side is connected with the positive terminal of the energy storage battery 6, the second conductor 32 at the lower side is connected with the negative terminal of the energy storage battery 6, and the booster circuit 7 can boost the voltage of the energy storage battery 6, so that the voltage between the first conductor 31 and the second conductor 32 can be the same as the voltage of the solar battery 5. At this time, since the positive electrode of the energy storage cell 6 is grounded, the first conductor 31 is also in a grounded state, and the second conductor 32 connected to the negative electrode of the energy storage cell 6 is in a negative potential and is equal to the voltage of the solar battery 5, there is no potential difference between the solar battery 5 and the glass coating layer 2 on the lower surface of the photovoltaic glass 101.

Through the above technical scheme, the photovoltaic module that this disclosure provided has the same technological effect with the photovoltaic glass among the above-mentioned technical scheme, in order to avoid unnecessary repetition, it is not repeated here, in addition, in the photovoltaic module of this disclosure, boost circuit 7 can amplify the output voltage of energy storage battery 6 several times, make the voltage between first electric conductor 31 and the second electric conductor 32 the same with the voltage of solar cell group 5, again because first electrode ground connection, and the polarity of first electrode is the same with the polarity of the earthing terminal of inverter, can make first electric conductor 31 ground connection, there is not the potential difference between second electric conductor 32 and the solar cell group 5, no potential difference and ion migration phenomenon inside and outside the photovoltaic module promptly, thereby can avoid the emergence of electric potential induced attenuation.

Referring to fig. 4 and 5, the transparent conductor 3 is not shielded above the solar cell 51 in the thickness direction of the photovoltaic module, so as to prevent the transparent conductor 3 from affecting the lighting of the solar cell 51. In a specific embodiment, when the cover plate 10 is made of photovoltaic glass 101, the projection of the solar cell 51 described below on the photovoltaic glass can fall within the grid of the grid-like structure, and the transparent conductor 3 is positioned above the solar cell 51, but does not block the solar cell 51 above the solar cell 51. As another specific embodiment, when the cover plate 10 is normal glass and the back plate 4 is photovoltaic glass 101, since the transparent conductor 3 is under the solar cell 51, the transparent conductor 3 is not shielded above the solar cell 51 regardless of the arrangement.

In the embodiment of the present disclosure, as a first option, the energy storage battery 6 and the voltage boost circuit 7 may be disposed on a side of the back plate 4 away from the solar battery pack 5, so as to prevent the energy storage battery 6 and the voltage boost circuit 7 from blocking sunlight irradiating the solar battery pack 5; as a second alternative, the energy storage battery 6 and the voltage boost circuit 7 may be provided in a junction box (not shown) of the photovoltaic module; as a third option, the energy storage cell 6 and the voltage boost circuit 7 may be disposed between the back sheet 4 and the cover sheet 10, and the energy storage cell 6 and the voltage boost circuit 7 are not shielded above the solar cell 51 along the thickness direction of the photovoltaic module, wherein, as a specific embodiment, referring to fig. 4 and 5, the energy storage cell 6 and the voltage boost circuit 7 may be disposed at an edge position or a middle position of the photovoltaic module and at a vacant position of the solar cell 51, so that the energy storage cell 6 and the voltage boost circuit 7 are not shielded above the solar cell 51, and as another specific embodiment, the energy storage cell 6 and the voltage boost circuit 7 may be disposed below the solar cell group 5, and at this time, the energy storage cell 6 and the voltage boost circuit 7 are not shielded above the solar cell 51 no matter how they are disposed.

Referring to fig. 4 to 6, the photovoltaic module may further include a frame 8, the frame 8 is grounded, the frame 8 may be made of a metal material to keep the photovoltaic module insulated from the outside, and specifically, the frame 8 may be made of an aluminum material, which has a light weight and a good conductivity.

Referring to fig. 6, the photovoltaic module may further include an encapsulation adhesive film layer 9, and the encapsulation adhesive film layer 9 may be disposed between the photovoltaic glass 101 and the solar cell 5, and between the solar cell 5 and the back sheet 4.

In a specific embodiment of the present disclosure, the manufacturing step of the photovoltaic module may include: the method comprises the steps of serially welding a plurality of solar cells 51, typesetting the solar cells 51, laminating layers of the photovoltaic module, connecting the transparent conductor 3 with the energy storage battery 6, installing a frame 8 and packaging. When the photovoltaic glass 101 is laid before lamination, the first lead wire of the first conductor 31 and the second lead wire of the second conductor 32 may be fixed to the edge of the photovoltaic glass 101 by using an adhesive tape, so as to avoid laminating the first lead wire and the second lead wire inside the encapsulation adhesive film layer 9 during lamination, and after lamination, the first lead wire and the second lead wire may be connected to the energy storage battery 6 and the booster circuit 7.

The preferred embodiments of the present disclosure are described in detail above with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details in the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

It should be noted that, in the above embodiments, the various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various possible combinations will not be further described in the present disclosure.

In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.

Claims

1. A photovoltaic glass, comprising:

a glass precursor sheet comprising opposing first and second surfaces,

a glass coating layer which is transparent and insulating, the first surface and the second surface are respectively covered with the glass coating layer, and

a transparent conductor including a first conductor and a second conductor; the first conductor is arranged between the first surface and the surface of the glass coating layer far away from the glass original sheet; the second conductor is arranged between the second surface and the surface of the glass coating layer far away from the glass original sheet; the first conductor and the second conductor are respectively used for being electrically connected with two electrodes of an energy storage battery.

2. The photovoltaic glass of claim 1, wherein the first electrical conductor is disposed between the first surface and the glass coating and the second electrical conductor is disposed between the second surface and the glass coating.

3. The photovoltaic glass of claim 1, wherein the first electrical conductor is embedded in the glass coating of the first surface and the second electrical conductor is embedded in the glass coating of the second surface.

4. The photovoltaic glass of claim 1, wherein the first and second electrical conductors are each configured as a linear structure, the first and second electrical conductors are each bent and extended to form a grid-like structure, and the first and second electrical conductors are aligned with each other along the thickness direction of the glass original sheet.

5. The photovoltaic glass of claim 4, wherein the first and second electrical conductors have a width of 0.1mm to 0.5mm.

6. The photovoltaic glass of claim 1, wherein the transparent conductor is zinc oxide or indium tin oxide.

7. The photovoltaic glass of any of claims 1-6, wherein the first electrical conductor is electrically connected to the energy storage cell through a first lead-out, the first lead-out extending from between the first surface and the glass coating or the first lead-out extending from the glass coating;

the second conductor is electrically connected with the energy storage battery through a second leading-out end, and the second leading-out end extends out from the position between the second surface and the glass coating layer, or the second leading-out end extends out from the glass coating layer.

8. The photovoltaic glass of any of claims 1-6, wherein the glass coating has a thickness of 100 μm to 300 μm.

9. A photovoltaic module, for electrical connection with an inverter, comprising a back sheet, a solar cell set and a cover sheet, which are sequentially stacked from bottom to top, wherein the solar cell set comprises a plurality of solar cells arranged in an array and electrically connected, at least one of the back sheet and the cover sheet is configured as the photovoltaic glass of any one of claims 1 to 8, the second surface faces the solar cells,

the photovoltaic module further comprises an energy storage battery and a booster circuit, wherein a first electrode and a second electrode of the energy storage battery are respectively and electrically connected with the first conductor and the second conductor, the first electrode is grounded, and the polarity of the first electrode is the same as that of the grounding end of the inverter; the booster circuit is electrically connected to the first conductor and the second conductor, and the booster circuit is configured to boost a voltage between the first conductor and the second conductor to be equal to a voltage of the solar cell group.

10. The photovoltaic module of claim 9, wherein the transparent electrical conductor is unobstructed above the solar cells in a thickness direction of the photovoltaic module.

11. The assembly defined in claim 9 wherein the energy storage cell and the boost circuit are unobstructed above the solar cell in a thickness direction of the assembly.

12. The photovoltaic module of claim 11,

the energy storage battery and the booster circuit are arranged on one surface of the back plate, which is far away from the solar battery pack;

or the energy storage battery and the booster circuit are arranged in a junction box of the photovoltaic assembly;

or, the energy storage battery and the booster circuit are arranged between the back plate and the cover plate.

13. The assembly according to claim 9, further comprising a frame, wherein the frame is made of metal, and the frame is grounded.

14. The photovoltaic module of claim 9 further comprising an encapsulant layer disposed between the photovoltaic glass and the solar cell set, and between the solar cell set and the backsheet.