CN214477503U

CN214477503U - Solar photovoltaic module

Info

Publication number: CN214477503U
Application number: CN202120916804.1U
Authority: CN
Inventors: 陈真; 李志伟
Original assignee: Zhejiang Jinko Solar Co Ltd; Jinko Solar Co Ltd
Current assignee: Zhejiang Jinko Solar Co Ltd; Jinko Solar Co Ltd
Priority date: 2021-04-29
Filing date: 2021-04-29
Publication date: 2021-10-22
Anticipated expiration: 2031-04-29

Abstract

The utility model discloses a solar photovoltaic module, include: the solar cell is provided with a side wall at one side deviating from the irradiation of solar rays, and the side wall is used for forming a first cavity capable of adjusting the temperature during the device; the side wall is provided with a first opening and a second opening for gas circulation to adjust the temperature. Compared with the prior art, the utility model discloses a one side that deviates from solar ray through solar cell forms the first cavity that is used for adjusting the temperature to set up first opening and second opening in order to realize the fluid circulation in first cavity, set up this structure in building external wall surface can realize accomplishing effective isolation to the temperature in the building and between the solar PV modules.

Description

Solar photovoltaic module

Technical Field

The utility model relates to a photovoltaic module technical field, especially a solar photovoltaic module.

Background

In recent years, the application field of solar photovoltaic modules is gradually increased in replacing building materials, and the applicability and the functionality of the solar photovoltaic modules are receiving more and more attention. The solar photovoltaic component comprises surface glass, a packaging adhesive film, a solar cell, a packaging adhesive film and bottom glass from outside to inside in sequence, wherein the bottom glass has a smaller specific heat capacity (less than 1000J/(kg. DEG C)) and is much smaller than the specific heat capacity of water 4187J/(kg. DEG C), so that the temperature between the inside of the building and the solar photovoltaic component is influenced mutually.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a solar photovoltaic module to solve the technical problem among the prior art, it can realize accomplishing effective isolation to the temperature in the building and between the solar photovoltaic module.

The utility model provides a solar photovoltaic module, include:

the solar cell is provided with a side wall at one side deviating from the irradiation of solar rays, and the side wall is used for forming a first cavity capable of adjusting the temperature during the device;

the side wall is provided with a first opening and a second opening for gas circulation so as to adjust the temperature.

In some embodiments, the sidewall includes a first wall and a second wall opposite to each other, the first opening is disposed on the first wall, and the second opening is disposed on the second wall.

In some embodiments, the sidewall includes a first wall and a second wall disposed opposite to each other, and a partition is disposed between the first wall and the second wall, wherein:

one end of the partition board is connected with the first wall surface, and a gap is formed between the other end of the partition board and the second wall surface;

the first opening and the second opening are arranged on the first wall surface and are respectively positioned on two sides of the partition board.

In some of these embodiments, the distance between the first opening and the solar cell is greater than the distance between the second opening and the solar cell.

In some embodiments, the number of the first opening and the second opening is one or more.

In some embodiments, the solar photovoltaic module further includes a fixing member located on a side of the solar cell away from the irradiation of the solar rays, and the first cavity is formed between the fixing member and the solar cell.

In some embodiments, a first panel is disposed on a side of the solar cell facing away from the solar ray, and the first cavity is formed on a side of the first panel facing away from the solar cell;

and a second panel is arranged on one side of the solar cell facing the irradiation of the solar rays.

In some embodiments, the solar cell includes a plurality of cell pieces arranged at intervals, a gap space is formed between adjacent cell pieces, the first panel is a transparent plate, a second cavity is formed in the first panel, a reflective layer is formed on a wall surface of the second cavity, and a orthographic projection of the reflective layer formed along the thickness direction of the first panel at least covers a part of the gap space, wherein:

the reflecting surface of the reflecting layer faces to one side where the solar cell is located and is used for receiving the solar rays passing through the gap space and reflecting the solar rays back to the cell piece.

In some embodiments, the reflective layer is disposed on the top side or/and the bottom side of the second cavity.

In some of these embodiments, the reflective layer is white in color.

Compared with the prior art, the utility model discloses a one side that deviates from solar ray through solar cell and shines forms the first cavity that is used for adjusting the temperature to set up first opening and second opening in first cavity and in order to realize the fluid circulation, set up this structure in building external wall surface can realize accomplishing effective isolation to the temperature in the building and between the solar PV modules, avoid the temperature to influence mutually between the two, also be favorable to the rapid cooling to the building.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic structural view of an embodiment of the first chamber;

FIG. 3 is a view from the direction A of FIG. 2;

fig. 4 is a schematic structural view of another embodiment of the first cavity.

Description of reference numerals: 1-solar cell, 2-fixing piece, 3-first cavity, 4-first opening, 5-second opening, 6-first wall, 7-second wall, 8-partition, 9-gap, 10-upper chamber, 11-lower chamber, 12-cell, 13-gap space, 14-first panel, 15-second cavity, 16-reflecting layer, 17-second panel, 18-packaging adhesive film, 19-third wall and 20-fourth wall.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present invention, and should not be construed as limiting the present invention.

As shown in fig. 1 to 3, an embodiment of the present invention provides a solar photovoltaic module, including:

the solar cell 1, in this embodiment, the solar cell 1 may adopt a conventional structure in the prior art, which is not described herein again. The side of the solar cell facing away from the sun's rays is provided with a side wall (not shown) for forming a temperature adjustable first cavity 3 during installation.

First cavity 3 is used for the gas circulation, and gas flow can the heat transfer to play the effect of regulation and control temperature, be equipped with first opening 4 and second opening 5 on the wall (the lateral wall) of first cavity 3 side, regard as the air intake with first opening 4, regard as the air outlet with second opening 5, gaseous certainly first opening 4 introduces follow behind the first cavity 3 second opening 5 flows out, wherein first opening 4 and second opening 5's position can make the adaptability according to actual conditions and change, does not do not restrict here. The structure is arranged on the surface of the outer wall of the building body, so that the building body can dissipate heat. It should be noted that the gas may be air, or other gaseous substances with heat transfer capability.

The utility model discloses a one side that deviates from the solar ray through solar cell forms the first cavity that is used for adjusting the temperature to set up first opening and second opening in order to realize the fluid circulation in first cavity, set up this structure in building external wall surface can realize accomplishing effective isolation to the temperature in the building and between the solar PV modules, avoid the temperature to influence mutually between the two, also be favorable to the rapid cooling to the building.

In some embodiments, the utility model discloses still include mounting 2, be located solar cell 1 deviates from the one side that the sunlight shines, first cavity 3 is formed between mounting 2 and solar cell 1, wherein mounting 2 preferred has the material of lower specific heat capacity to realize the quick exchange of temperature, in this embodiment, first cavity 3 is established to regular cube structure, utilize the cavity structure of first cavity 3, can play the effect of keeping apart solar PV modules and temperature in the building, technical personnel in this field can carry out adaptability change with the shape of first cavity according to actual need, do not do the restriction here.

Of course, the mounting 2 can also be directly the wall of the building except setting up the structure that sets up on the outer wall of building, can both realize the utility model discloses a function.

It is understood that the product of the present invention may not comprise the fixing member 2, i.e. the first cavity 3 for temperature adjustment is directly assembled or formed by using the side wall at the back of the solar cell 2, and is not limited herein.

In one embodiment, referring to fig. 2, the first opening 4 and the second opening 5 are located on two opposite sides of the first cavity 3, and the airflow flows in a straight line from the first opening 4 into the first cavity 3 and then flows out from the second opening 5, and the flowing direction of the fluid is shown in the direction of the arrow shown in fig. 2, specifically, the first opening 4 is located on a first wall 6 on the side of the first cavity 3, the first wall 6 is a right wall shown in fig. 2, the second opening 5 is located on a second wall 7 on the side of the first cavity 3, the second wall 7 is a left wall shown in fig. 2, and the first wall 6 and the second wall 7 are horizontally opposite. It is worth pointing out that the side of the first cavity 3 refers to the edge portion surrounding the first cavity 3 in fig. 1.

In this embodiment, the first opening 4 and the second opening 5 are disposed opposite to each other, and the positions of the first wall surface 6 and the second wall surface 7 are exemplary and not particularly limited, and it is also conceivable to provide the first opening 4 and the second opening 5 on two intersecting side wall surfaces, so that the fluid flows in the first cavity 3 in a nearly L-shaped manner, further extending the flow path in the first cavity 3.

In some embodiments, the number of the first opening 4 and the second opening 5 is one or more, respectively. For example, as shown in fig. 3, the wall surfaces on the side of the first cavity 3 include a pair of first wall surface 6 and second wall surface 7 disposed opposite to each other, and a pair of third wall surface 19 and fourth wall surface 20 disposed opposite to each other, the four wall surfaces are respectively disposed on the four sides of the first cavity 3, two first openings 4 are respectively disposed on the first wall surface 6 and the third wall surface 19, two second openings 5 are respectively disposed on the second wall surface 7 and the fourth wall surface 20, and the number of the first openings 4 and the number of the second openings 5 can reach four respectively. The number of the openings is large, air flow can enter from the different first openings and flow out from the second openings, and the effects of isolation, cooling and heat dissipation are better; the first opening and the second opening at different positions can be opened according to requirements, and the use is more flexible.

Of course, in other embodiments, the first opening and the second opening can also be freely disposed on the wall surface of the side in other different quantities and forms, and the arrangement is flexible and changeable, and all the functions of the present invention can be realized, and no specific limitation is made here.

In another embodiment, referring to fig. 4, a partition 8 is provided between the first wall and the second wall, the partition 8 being located in the first cavity 3, wherein:

one end of the partition plate 8 is connected to the first wall surface 6 of the first cavity 3, in this embodiment, the first wall surface 6 is a right side wall surface in fig. 4, a gap 9 is formed between the other end of the partition plate 8 and the second wall surface 7 of the first cavity 3, the second wall surface 7 is a left side wall surface in fig. 4, the partition plate 8 functions to divide the chamber of the first cavity 3 into an upper chamber 10 and a lower chamber 11 which are distributed up and down in fig. 4, the upper chamber 10 and the lower chamber 11 are communicated through the gap 9, and the fluid flowing direction is as the arrow direction shown in fig. 4.

In this embodiment, the first opening 4 and the second opening 5 are both disposed on the first wall 6 of the first cavity 3 and respectively located on two opposite sides in a direction perpendicular to the partition plate 8, and the airflow is introduced into the upper chamber 10 or the lower chamber 11 from the first opening 4, flows into the other chamber through the notch 9, and then flows out from the second opening 5, thereby further increasing the flow path in the first cavity 3.

Further, first opening 4 is as the air intake, first opening 4 with the distance between the solar cell 1 is greater than second opening 5 with the distance between the solar cell 1, when installing the outer wall of the building body, fluid can get into and preferentially pass through the one side that is close to the building body from first opening 4, promptly in the visual angle of figure 4, will first opening 4 is located the below of second opening 5 to baffle 8 is the border, and first opening 4 is located the below of baffle 8, and second opening 5 is located the top of baffle 8, and fluid gets into down cavity 11 after from first opening 4, flows into upper chamber 10 through breach 9 and then sends out from second opening 5. The preferential one side that is close to the building body of process of fluid can carry the high temperature air of building body one side fast and follow 5 outflows of second opening, for building side cooling.

In some embodiments, a first panel 14 is disposed between the solar cell 1 and the fixing member 2, the first panel 14 is disposed on a side of the solar cell 1 away from the solar ray, the first cavity 3 is formed between the fixing member 2 and the first panel 14, and the first panel 14 is connected to the solar cell 1 through an adhesive packaging film 18; the side of the solar cell 1 facing the sun light irradiation is provided with a second panel 17, and the second panel 17 is connected with the solar cell 1 through a packaging adhesive film 18. The layered structure formed in this embodiment is a commonly used photovoltaic device structure. Of course, the structure of the solar photovoltaic module may also include only the solar cell 1 for photoelectric energy conversion, and is not limited herein. Preferably, the second panel 17 may be made of glass.

In some embodiments, the solar cell 1 includes a plurality of cell sheets 12 arranged at intervals, and an interstitial space 13 is formed between adjacent cell sheets 12, in the prior art, after sunlight passes through the interstitial space 13, effective utilization can no longer be generated, and in order to improve photovoltaic power generation efficiency, further: the first panel 14 is formed with a reflective layer, the orthographic projection of the reflective layer along the thickness direction of the first panel 14 at least covers a part of the gap space, the range of the reflective layer preferably covers all the gap spaces 13 to improve the reflection effect of the solar rays, wherein: the reflecting surface of the reflecting layer faces to one side where the solar cell is located and is used for receiving the solar rays passing through the gap space and reflecting the solar rays back to the cell piece, so that secondary utilization of the solar rays is realized, and the power generation efficiency of the solar photovoltaic module is improved.

Further, the reflective layer needs to have a certain thickness, in this embodiment, the thickness of the reflective layer is 0-1000nm to ensure maximum light reflection.

Further, the color of the reflective layer is white, and those skilled in the art can set the color of the reflective layer according to the spectral distribution of the solar ray in a specific use place, which is not limited herein.

Further, referring to fig. 1, the first panel 14 is a transparent plate, a second cavity 15 is formed in the first panel 14, and a reflective layer 16 is formed by coating paint on a wall surface of the second cavity 15. Specifically, the solar rays are irradiated to the side of the reflective layer 16 facing the solar cell 1 and then reflected back to the solar cell 1, so that the solar rays transmitted through the gap spaces 13 between the cell pieces 12 can be reflected and fully utilized by the reflective layer 16. In this embodiment, the second cavity 15 is disposed in the first panel 14 to form a hollow structure, and the hollow structure can insulate heat energy; the reflecting layer is arranged on the wall surface of the closed second cavity 15 and is not contacted with external media such as air, so that aging and falling can be avoided, and the stability is better. Preferably, a weather-resistant additive may be added to the reflective layer 16 to improve the service life and the reflective effect.

Further, the reflective layer 16 in the above embodiments is disposed on the top side or/and the bottom side of the second cavity 15, and can receive the solar rays passing through the gap space and reflect the solar rays back to the cell.

The structure, features and effects of the present invention have been described in detail above according to the embodiment shown in the drawings, and the above description is only the preferred embodiment of the present invention, but the present invention is not limited to the implementation scope shown in the drawings, and all changes made according to the idea of the present invention or equivalent embodiments modified to the same changes should be considered within the protection scope of the present invention when not exceeding the spirit covered by the description and drawings.

Claims

1. A solar photovoltaic module, comprising:

2. The solar photovoltaic module of claim 1, wherein: the side wall comprises a first wall surface and a second wall surface which are oppositely arranged, the first opening is formed in the first wall surface, and the second opening is formed in the second wall surface.

3. The solar photovoltaic module of claim 1, wherein: the lateral wall includes relative first wall and the second wall that sets up, be equipped with the baffle between first wall with the second wall, wherein:

4. The solar photovoltaic module of claim 3, wherein: the distance between the first opening and the solar cell is greater than the distance between the second opening and the solar cell.

5. The solar photovoltaic module of claim 1, wherein: the number of the first opening and the second opening is respectively one or more.

6. The solar photovoltaic module of claim 1, wherein: the solar photovoltaic module further comprises a fixing piece, the fixing piece is located on one side, deviating from the irradiation of the solar rays, of the solar cell, and the first cavity is formed between the fixing piece and the solar cell.

7. The solar photovoltaic module of claim 1, wherein:

a first panel is arranged on one side of the solar cell, which is far away from the irradiation of solar rays, and the first cavity is formed on one side, back to the solar cell, of the first panel;

8. The solar photovoltaic module of claim 7, wherein: solar cell includes the battery piece that a plurality of intervals set up, and is adjacent form the clearance space between the battery piece, first panel is the transparent plate, just be formed with the second cavity in the first panel, the wall of second cavity forms the reflection stratum, the reflection stratum is following the orthographic projection that first panel thickness direction formed covers part at least the clearance space, wherein:

9. The solar photovoltaic module of claim 8, wherein: the reflecting layer is arranged on the top side or/and the bottom side of the second cavity.

10. The solar photovoltaic module of claim 8, wherein: the color of the reflecting layer is white.