CN216490384U

CN216490384U - High-efficient type double-sided dual-glass photovoltaic module

Info

Publication number: CN216490384U
Application number: CN202123216726.3U
Authority: CN
Inventors: 吴昊; 刘佳杰; 徐闯; 侯啸; 曹思远
Original assignee: Jetion Solar Jiangsu Co Ltd
Current assignee: Jetion Solar Jiangsu Co Ltd
Priority date: 2021-12-20
Filing date: 2021-12-20
Publication date: 2022-05-10
Anticipated expiration: 2031-12-20

Abstract

The utility model discloses a high-efficient type double-sided dual-glass photovoltaic module, include double-sided dual-glass assembly and set up in double-sided dual-glass assembly circumference outer fringe and end to end's frame section bar, double-sided dual-glass assembly includes the double-sided battery layer, set up in the glass layer of double-sided battery layer both sides and set up the encapsulated layer between glass layer and double-sided battery layer, the outside on one of them glass layer is provided with the terminal box of being connected with the double-sided battery layer, the circumference lateral wall of terminal box sets up in the terminal box with the adjacent one side on glass layer and the terminal box is back to between the one side on glass layer, be provided with the reflectance coating on the circumference lateral wall, the reflection of light face of reflectance coating is back to the terminal box. This high-efficient type double-sided dual-glass photovoltaic module sets up the reflectance coating through the circumference lateral wall at the terminal box, on the sunshine is to the terminal box lateral wall, can reflect light to double-sided dual-glass assembly on to increase light acceptance, improve photovoltaic power generation efficiency, reduce the shadow, thereby prevent the hot spot effect.

Description

High-efficient type double-sided dual-glass photovoltaic module

Technical Field

The utility model belongs to the technical field of the photovoltaic module technique and specifically relates to a two-sided dual-glass photovoltaic module of high-efficient type is related to.

Background

The basis of the working principle of the solar cell is the photovoltaic effect of a semiconductor PN junction, namely, under the irradiation of sunlight, current can be generated to realize photovoltaic power generation.

Among the prior art, in order to connect each battery piece, need set up the terminal box usually, but the existence of terminal box has caused the battery piece to shelter from, in the high-efficient dual-glass photovoltaic module of two matte as the china utility model discloses that the notice number is CN205595344U, be fixed with the terminal box on the glass backplate for the terminal box of backplate shelters from the position and has produced the shadow, has reduced the generating efficiency of battery piece, and produce the hot spot effect easily, and then has influenced dual-glass module's reliability.

Therefore, there is a need for an improved dual-sided dual glass assembly structure in the prior art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the defect that exists among the prior art, provide a reduce shadow and hot spot effect to improve generating efficiency's two-sided dual-glass photovoltaic module of high-efficient type.

In order to realize the technical effects, the utility model adopts the technical scheme that: the utility model provides a high-efficient type double-sided dual-glass photovoltaic module, include double-sided dual-glass assembly with set up in the frame section bar of double-sided dual-glass assembly circumference outer fringe, double-sided dual-glass assembly include double-sided battery layer, set up in the glass layer of double-sided battery layer both sides with set up in the glass layer with encapsulation layer between the double-sided battery layer, the outside on one of them glass layer be provided with the terminal box that the double-sided battery layer is connected, the circumference lateral wall of terminal box set up in the terminal box with the adjacent one side on glass layer with the terminal box is back to between the one side on glass layer, be provided with the reflectance coating on the circumference lateral wall, the reflection of light face of reflectance coating is back to the terminal box.

Preferably, in order to increase the reflection area and increase the power generation amount, the reflection film is sleeved outside the junction box.

Preferably, in order to further increase the emitting area and increase the power generation capacity, the junction box is arranged between one end of the reflecting film adjacent to the glass layer and one end of the reflecting film opposite to the glass layer.

Preferably, in order to ensure that the reflecting film is in close contact with the junction box and prevent the reflecting film from loosening, an elastic anti-slip pad is arranged between the reflecting film and the junction box.

Preferably, in order to facilitate installation of the non-slip mat, a plurality of slots distributed at intervals are formed in the circumferential side wall of the junction box, and the slots extend in the height direction of the junction box and are matched with the non-slip mat in an inserted manner.

Preferably, in order to adjust the tensioning degree of the reflective film, the anti-slip mat is an anti-slip strip with the length direction consistent with the length direction of the slot, and the anti-slip strip is provided with a plurality of anti-slip strips in one-to-one correspondence with the slot.

Preferably, in order to guarantee the service life of the non-slip mat, the non-slip mat is a silica gel mat.

Preferably, in order to prevent the reflective film from being separated from the junction box, a limiting cover is arranged on one side of the junction box, which is back to the glass layer, and the projections of the non-slip mat and the reflective film on the horizontal plane are both arranged in the projection of the limiting cover on the horizontal plane.

Preferably, in order to facilitate installation of the reflective film, the insertion direction of the slot and the non-slip mat is consistent with the length direction of the slot, and one end of the slot adjacent to the glass layer extends to one surface of the junction box adjacent to the glass layer.

Preferably, in order to improve the emissivity and increase the photovoltaic power generation capacity, the reflective film is an all-dielectric reflective film.

To sum up, the utility model discloses high-efficient type double-sided dual-glass photovoltaic module compares with prior art, sets up the reflectance coating through the circumference lateral wall at the terminal box, on sunshine is to the terminal box lateral wall, can reflect light to double-sided dual-glass assembly on to increase light acceptance, improve photovoltaic power generation efficiency, reduce the shadow, thereby prevent the hot spot effect.

Drawings

Fig. 1 is a plan view of embodiment 1 of the present invention;

fig. 2 is a schematic structural view of a double-sided dual glass assembly according to embodiment 1 of the present invention;

FIG. 3 is a top view of the junction box and the reflective film according to embodiment 1 of the present invention;

fig. 4 is a top view of the junction box according to embodiment 1 of the present invention;

fig. 5 is a top view of the junction box and the reflective film according to embodiment 2 of the present invention;

fig. 6 is a cross-sectional view of the junction box and the reflective film according to embodiment 3 of the present invention;

in the figure: 1. the double-sided double-glass assembly comprises a double-sided battery layer 1a, a glass layer 1b, a packaging layer 1c, a frame profile 2, a junction box 3, a slot 3-1, a reflecting film 4, an anti-skid pad 5 and a limiting cover 6.

Detailed Description

The following description will further describe embodiments of the present invention with reference to the accompanying drawings and examples. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

Example 1

As shown in fig. 1 to 4, the high-efficiency double-sided double-glass photovoltaic module of embodiment 1 includes a double-sided double-glass assembly 1, four frame profiles 2 connected end to end are disposed on the circumferential outer edge of the double-sided double-glass assembly 1, the double-sided double-glass assembly 1 includes a double-sided battery layer 1a, the double-sided battery layer 1a includes a plurality of battery pieces distributed in the same plane in a rectangular array manner, glass layers 1b are disposed on both sides of the double-sided battery layer 1a, an encapsulation layer 1a is disposed between the glass layers 1b and the double-sided battery layer 1a, a junction box 3 is disposed on the outer side of one of the glass layers 1b (i.e., the side of the glass layer 1b opposite to the double-sided battery layer 1 a), and a terminal of the junction box 3 is connected with the double-sided battery piece of the double-sided battery layer 1 a; the circumferential side wall of the junction box 3 is arranged between one surface of the junction box 3 adjacent to the glass layer 1b and one surface of the junction box 3 back to the glass layer 1b, a reflecting film 4 is arranged on the circumferential side wall of the junction box 3, and the reflecting surface of the reflecting film 4 is back to the junction box 3; the reflecting film 4 is a closed-loop all-dielectric reflecting film and is sleeved outside the junction box 3, and the junction box 3 is arranged between one end of the reflecting film 4 adjacent to the glass layer 1b and one end of the reflecting film 4 back to the glass layer 1 b; an elastic anti-slip pad 5 is arranged between the reflecting film 4 and the junction box 3, the anti-slip pad 5 is an annular silica gel pad, a plurality of slots 3-1 distributed at intervals are arranged on the circumferential side wall of the junction box 3, the slots 3-1 extend along the height direction of the junction box 3 and are in plug-in fit with the anti-slip pad 5, the plug-in direction of the slots 3-1 and the anti-slip pad 5 is consistent with the length direction of the slots 3-1, and the slots 3-1 are through grooves.

In the high-efficiency double-sided double-glass photovoltaic assembly of this embodiment, terminal box 3 is fixed in on one of them glass layer 1b of double-sided double-glass assembly 1 through the mode that bonds, set up the reflective surface back to the reflectance coating 5 of terminal box 3 on the circumference lateral wall of terminal box 3 after, when the sunlight shines towards terminal box 3, can shine the double-sided battery piece in the double-sided double-glass assembly 1 double-sided battery layer 1a with the sunlight reflection, thereby increase the received volume of sunlight, improve photovoltaic power generation efficiency, reduce the production of shadow, avoid taking place the hot spot effect.

The reflecting film 5 is in a closed ring shape and is sleeved outside the junction box 3, the junction box 3 is located in a space enclosed by the reflecting film 5, and by adopting the design, the reflecting area is increased, so that light rays irradiating the circumferential side wall of the junction box 3 at any angle can be reflected, and the generating capacity is improved; the reflective film 5 is a full dielectric reflective film, and has higher reflectivity compared with a metal reflective film, so that the optical loss is reduced, and the power generation capacity is improved.

Set up elastic slipmat 5 between reflectance coating 5 and terminal box 3 after, can make reflectance coating 5 keep certain tensile force, avoid reflectance coating 5 to slide or become flexible, thereby make reflectance coating 5 be fixed in outside terminal box 3, and slipmat 5 has elasticity, can warp through the atress, adjust its shape, and then change reflectance coating 5's tensile force, avoid the tensile force 5 fracture damage of reflectance coating when too big, and the tensile force will lead to reflectance coating 5 fixed effect not good when too little. The service life of the non-slip mat 5 can be guaranteed due to the fact that the silica gel mat is selected for the non-slip mat 5, after the inserting grooves 3-1 are formed in the circumferential side wall of the junction box 3, the inserting and connecting fit between the junction box 3 and the non-slip mat 5 can be achieved conveniently through the inserting grooves 3-1, and the non-slip mat 5 is prevented from rotating around the circumferential direction of the junction box 3.

Example 2

As shown in fig. 5, the efficient double-sided dual-glass photovoltaic module of embodiment 2 is based on embodiment 1, and is different in that the anti-slip pad 5 is an anti-slip strip having a length direction consistent with a length direction of the slot 3-1, and the anti-slip strip is provided with a plurality of anti-slip strips and is in one-to-one correspondence with the slot 3-1.

In the embodiment, the anti-slip pads 5 are anti-slip strips and are provided with a plurality of anti-slip pads which correspond to the slots 3-1 one by one, after the design is adopted, compared with the annular silica gel pad in the embodiment 1, the material consumption of silica gel is reduced, the cost is reduced, and the anti-slip strips are detachably connected with the junction box 3 through the slots 3-1, so that whether the anti-slip strips are inserted into the slots 3-1 or not can be selected when the anti-slip pads are actually installed and used, the tension force of the reflecting film 4 is adjusted by controlling the number of the inserted anti-slip strips, and the tension force of the reflecting film 4 is adjusted by depending on the self elastic property of the inserted anti-slip strips, so that the reflecting film 4 is ensured to be fixed outside the junction box 3 and is prevented from loosening or sliding.

Example 3

As shown in fig. 6, according to the high-efficiency double-sided double-glass photovoltaic module of embodiment 3, based on embodiment 2, a limiting cover 6 is disposed on one side of the junction box 3, which is opposite to the glass layer 1b, the limiting cover 6 is bonded to the junction box 2, and projections of the non-slip mat 5 and the reflective film 4 on a horizontal plane are both disposed in a projection of the limiting cover 6 on the horizontal plane; one end of the slot 3-1 adjacent to the glass layer 1b extends to one side of the junction box 3 adjacent to the glass layer 1b.

After adopting above-mentioned design, utilize spacing lid 6 can prevent that slipmat 5 and reflectance coating 4 from upwards sliding and break away from the terminal box, restrict the mobile space of slipmat 5 and reflectance coating 4, guarantee that slipmat 5 and reflectance coating 4 are located between spacing lid 6 and glass layer 1b. When the solar photovoltaic power generation assembly is installed, one side to be connected with the glass layer 1b from the junction box 3 can be pre-inserted into the anti-slip mat 5 along the height direction of the junction box 3, the reflecting film 4 is sleeved, then the junction box 3 is bonded on the glass layer 1b, so that the movable space of the anti-slip mat 5 and the reflecting film 4 is limited, the reflecting film 4 is prevented from being separated from the junction box 1, when the assembly is ensured to operate, sunlight irradiating the circumferential side wall of the junction box 3 can be reflected on the double-sided battery layer 1a, the power generation efficiency is improved, and the shadow and the hot spot effect are reduced.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a high-efficient type double-sided dual-glass photovoltaic assembly, including double-sided dual-glass assembly (1) with set up in double-sided dual-glass assembly (1) circumference outer fringe and end to end's frame section bar (2), double-sided dual-glass assembly (1) include double-sided battery layer (1 a), set up in glass layer (1 b) of double-sided battery layer (1 a) both sides with set up in glass layer (1 b) with encapsulation layer (1 c) between double-sided battery layer (1 a), the outside of one of them glass layer (1 b) be provided with terminal box (3) that double-sided battery layer (1 a) is connected, its characterized in that:

the peripheral side wall of the junction box (3) is arranged between one surface of the junction box (3) adjacent to the glass layer (1 b) and one surface of the junction box (3) back to the glass layer (1 b), a reflecting film (4) is arranged on the peripheral side wall, and the reflecting surface of the reflecting film (4) back to the junction box (3).

2. The high-efficiency double-sided double-glass photovoltaic module as recited in claim 1, wherein: the reflecting film (4) is sleeved outside the junction box (3).

3. The efficient double-faced double-glass photovoltaic module as recited in claim 2, wherein: the junction box (3) is arranged between one end, adjacent to the glass layer (1 b), of the reflection film (4) and one end, back to the glass layer (1 b), of the reflection film (4).

4. The high-efficiency double-sided double-glass photovoltaic module as recited in claim 3, wherein: an elastic anti-slip pad (5) is arranged between the reflecting film (4) and the junction box (3).

5. The high-efficiency double-sided double-glass photovoltaic module as recited in claim 4, wherein: the anti-skid device is characterized in that a plurality of slots (3-1) distributed at intervals are formed in the circumferential side wall of the junction box (3), and the slots (3-1) extend along the height direction of the junction box (3) and are in plug-in fit with the anti-skid pad (5).

6. The high-efficiency double-sided double-glass photovoltaic module as recited in claim 5, wherein: the anti-slip mat (5) is an anti-slip strip with the length direction consistent with that of the slot (3-1), and the anti-slip strips are arranged in a plurality and correspond to the slot (3-1) one by one.

7. The high-efficiency double-sided double-glass photovoltaic module as recited in claim 4, wherein: the non-slip pad (5) is a silica gel pad.

8. The high-efficiency double-sided double-glass photovoltaic module as recited in claim 6, wherein: one side, back to the glass layer (1 b), of the junction box (3) is provided with a limiting cover (6), and projections of the non-slip mat (5) and the reflecting film (4) on a horizontal plane are arranged in projections of the limiting cover (6) on the horizontal plane.

9. The high-efficiency double-sided double-glass photovoltaic module according to claim 8, wherein: the inserting direction of the inserting groove (3-1) and the anti-skid pad (5) is consistent with the length direction of the inserting groove (3-1), and one end, adjacent to the glass layer (1 b), of the inserting groove (3-1) extends to one surface, adjacent to the glass layer (1 b), of the junction box (3).

10. The high-efficiency double-sided double-glass photovoltaic module as recited in claim 1, wherein: the reflecting film (4) is a full dielectric reflecting film.