CN210743961U - Solar crystalline silicon component - Google Patents

Abstract

The utility model discloses a solar energy crystalline silicon subassembly, include: the light trapping structure comprises a substrate and a battery pack arranged on the top surface of the substrate, wherein the battery pack comprises a plurality of battery pieces which are arranged in an array mode, an ETFE film is arranged on the top surface of the battery pack, a back film is arranged between the bottom surface of the battery pack and the substrate, and the top surface of the ETFE film is in a honeycomb shape to form a light trapping structure; the battery pack also comprises a plurality of copper strips and bus bars, each row of battery pieces in the battery pack are connected in series through one copper strip, and the copper strips of two adjacent rows of battery pieces in the battery pack are connected in series through one bus bar; the periphery of the base plate is wrapped by a circle of U-shaped sealing strip, and the peripheral edge of the ETFE membrane exceeds the battery pack and is clamped and sealed between the U-shaped sealing strip and the base plate. The utility model discloses have advantages such as light utilization efficiency height, stable in structure are reliable.

Description

Solar crystalline silicon component

Technical Field

The utility model relates to a photovoltaic application especially relates to solar energy crystalline silicon subassembly.

Background

Along with the rapid development of current society, the product such as artificial intelligence, electronic information step in, for improving the duration of electronic product, people like to charge at any time with removing the treasured that charges, but remove the precious energy that charges and be limited all the time, can't provide lasting electric power when going out or camping. Moreover, the global fossil energy consumption is accelerated, the ecological environment is continuously worsened, particularly, greenhouse gas emission causes increasingly severe global climate change, the sustainable development of the human society is seriously threatened, and various countries in the world make respective energy development strategies to deal with the limitation of conventional fossil energy resources and the environmental problems caused by development and utilization, so people tend to use solar cell products to supplement electric power, not only better utilize renewable new energy, but also quickly reduce the consumption of fossil energy.

At present, the solar crystalline silicon component is provided with a layer of glass plate on the top surface of a cell, the surface of the glass plate is smooth and flat, more glass plates are reflected by the top surface of the glass plate during solar irradiation, and the utilization rate is low. In addition, the existing solar crystalline silicon module is mainly connected through adhesive film lamination, the installation of a cell is unstable, the crystalline silicon module is easy to break, and the service life is short.

SUMMERY OF THE UTILITY MODEL

In order to solve the defects such as light loss is great among the prior art, the utility model provides a solar energy crystalline silicon subassembly, this solar energy crystalline silicon subassembly light utilization rate is high, and structural stability is good, uses convenient and easily production.

The utility model discloses a technical scheme be, design solar energy crystalline silicon subassembly, include: the battery pack comprises a plurality of battery pieces which are arranged in an array manner, a layer of ETFE film is arranged on the top surface of the battery pack, and a layer of back film is arranged between the bottom surface of the battery pack and the substrate; the top surface of the ETFE membrane is in a honeycomb shape to form a light trapping structure.

Preferably, the battery pack further comprises a plurality of copper strips and bus bars, each row of battery pieces in the battery pack is connected in series through one copper strip, and the copper strips of two adjacent rows of battery pieces in the battery pack are connected in series through one bus bar.

Preferably, the periphery of the base plate is wrapped by a circle of U-shaped sealing strips, and the peripheral edge of the ETFE membrane exceeds the battery pack and is clamped and sealed between the U-shaped sealing strips and the base plate.

Preferably, EVA films are disposed between the ETFE film and the battery pack, between the battery pack and the back film, and between the back film and the substrate.

Preferably, the ETFE film, the first EVA adhesive film, the battery pack, the second EVA adhesive film, the back film, the third EVA adhesive film and the substrate are laminated in sequence from top to bottom and then are combined into a whole through lamination.

Preferably, the ETFE film and the EVA adhesive film are transparent films, and the back film is a white back film.

Preferably, a junction box is arranged on the top surface of the ETFE membrane and positioned on one side of the battery pack, the junction box is provided with a power supply hole, and the battery pack is electrically connected to the power supply hole.

Preferably, the power supply hole is connected with a cable, and an output plug is arranged at the movable end of the cable.

Preferably, the size of the junction box is 33 × 25 × 5 mm.

Preferably, the solar crystalline silicon module has a square or rectangular shape.

Compared with the prior art, the utility model has the advantages of it is following:

1. the upper surface of the ETFE film is in a honeycomb shape to form a light trapping structure, so that the reflection of optical fibers is reduced, the utilization rate is improved, and meanwhile, the appearance consistency of the crystalline silicon component is better, so that the solar energy conversion efficiency and the weak light property are higher;

2. the battery pieces are connected in series through the copper strips, and the strings are connected with each other through the bus bars and the outgoing lines, so that the copper strips are simpler to purchase and do not need special leads;

3. the ETFE film-EVA-battery pack-EVA-back film-EVA-substrate are laminated and combined into a whole, and the integrated design ensures that the battery piece is more stable and does not deviate, and the crystalline silicon component is firmer and is not easy to break;

4. the periphery of the substrate is provided with the U-shaped sealing strips, and the edges of the crystalline silicon components are wrapped by the U-shaped sealing strips, so that water is effectively prevented from entering the periphery of the substrate, and water vapor is isolated;

5. the junction boxes are arranged on the top surfaces of the crystalline silicon components, and the junction boxes with different hole positions can be selected according to different wires or different sizes of the crystalline silicon components during production.

Drawings

The invention is explained in more detail below with reference to exemplary embodiments and the accompanying drawings, in which:

FIG. 1 is a schematic view of a solar steel substrate crystalline silicon assembly stack;

FIG. 2 is a circuit diagram of a solar steel substrate crystalline silicon component (square steel substrate);

FIG. 3 is a drawing of a solar energy steel substrate crystalline silicon component (square steel substrate) array;

FIG. 4 is a front view of a solar steel substrate crystalline silicon component (square steel substrate);

FIG. 5 is a backside view of a solar steel substrate crystalline silicon component (square steel substrate);

FIG. 6 is a circuit diagram of a solar steel substrate crystalline silicon component (rectangular steel substrate);

FIG. 7 is a drawing of a solar energy steel substrate crystalline silicon component (rectangular steel substrate) array;

FIG. 8 is a front view of a solar steel substrate crystalline silicon assembly (rectangular steel substrate);

fig. 9 is a back view of a solar steel substrate crystalline silicon component (rectangular steel substrate).

Detailed Description

As shown in fig. 1 to 4 and fig. 6 to 8, the present invention provides a solar crystalline silicon module, including: base plate 1, locate the group battery 2 of 1 top surfaces of base plate, group battery 2 includes a plurality of battery piece that the array was arranged, and the interval between two adjacent battery pieces is 2mm, and group battery 2 still includes a plurality of copper strips and busbar 3, and every row of battery piece establishes ties through a copper strips in group battery 2, and the battery piece welding need not special wire on the copper strip, and adjacent two copper strips of battery piece establish ties through a busbar 3 in group battery 2, and the connection structure of battery piece is simple.

As shown in fig. 1, an ETFE film 7 is disposed on the top surface of the battery pack 2, a back film 8 is disposed between the bottom surface of the battery pack 2 and the substrate 1, EVA films are disposed between the ETFE film 7 and the battery pack 2, between the battery pack 2 and the back film 8, and between the back film 8 and the substrate 1, and the ETFE film 7, the first EVA film 9, the battery pack 2, the second EVA film 10, the back film 8, the third EVA film 11, and the substrate 1 are sequentially stacked from top to bottom and then combined into a whole through high-temperature lamination. Compared with the conventional crystalline silicon component packaged by the glass frame, the crystalline silicon component of the solar steel substrate is designed in an integrated manner, so that the cell is more stable and does not deviate, and the product is firmer and is not easy to break.

In order to improve the light utilization rate of the crystalline silicon component, the upper surface of the laminated crystalline silicon component is laminated into a honeycomb shape through the Teflon cloth, namely the top surface of the ETFE film 7 is in the honeycomb shape, so that a light trapping structure can be formed, and the appearance consistency is better. When light irradiates the top surface of the ETFE membrane 7, the light is reflected less under the action of the light trapping structure, the light passes through the ETFE membrane 7 and enters the battery pack, and the solar energy conversion efficiency and the weak light property are higher.

Preferably, as shown in fig. 4 and 5, and fig. 8 and 9, after the substrates are laminated and combined into a whole, the periphery of the substrate 1 is wrapped by a circle of U-shaped sealing strip 4, two parallel edges of the U-shaped sealing strip 4 are clamped on the top surface and the bottom surface of the crystalline silicon component, the middle edge of the U-shaped sealing strip 4, which is connected with the two parallel edges, is arranged on the outer side of the edge of the crystalline silicon component, the peripheral edge of the ETFE film 7 exceeds the battery pack 2 and is clamped and sealed between the U-shaped sealing strip 4 and the substrate 1, water is effectively prevented from entering the periphery of the substrate 1, water vapor is isolated from entering the interior of the crystalline silicon component, and the working performance of.

Further, be equipped with terminal box 5 that is located group battery 2 one side on the top surface of ETFE membrane 7, terminal box 5 is equipped with the power supply hole, and group battery 2 electricity is connected to on the power supply hole, and the power supply hole is connected with cable 6, and the expansion end of cable 6 is equipped with output plug. Through switching the wire plug that draws in terminal box 5 department to various interfaces that charge that are applicable to intelligent electronic equipment, can discern the equipment of charging to different voltages. For example, the output plug of the cable 6 is connected to the charging interface of the apple phone, so that the apple phone can be identified and charged, and then, for example, the output plug of the cable 6 is connected to the charging interface of the android phone, so that the apple phone can be identified and charged. Of course, during actual production, the output plug of the cable 6 may be directly replaced by the charging interface of the corresponding type according to design requirements, two or more cables 6 may be arranged in parallel in the power supply hole, the output plug of each cable 6 is a charging interface of one type, and the charging interfaces of all the cables 6 may be the same or different. It should be noted that, the size of the junction box 5 is 33 × 25 × 5mm, and the junction box 5 with a smaller size can reduce the occupation of the top surface and other positions of the crystalline silicon module, and reserve more positions for arranging the battery pack 2.

During the use, solar array 2 generates electricity under the sun, and the electron device that needs to charge is inserted to the cable 6 and the corresponding interface that charges that send electricity and draw forth through terminal box 5 department, and the crystalline silicon subassembly is direct output to the electronic product that accords with voltage with the electric energy of solar array 2 conversion to reach the effect of charging.

As shown in fig. 1, the utility model discloses a during solar energy crystalline silicon subassembly production, by ETFE membrane 7, first EVA glued membrane 9, group battery 2, second EVA glued membrane 10, notacoria 8, third EVA glued membrane 11, materials such as base plate 1 constitute, weld battery piece and copper strips earlier, the tip welding busbar of adjacent copper strips, make group battery 2 after, with parts such as ETFE membrane 7 to base plate 1 from last stromatolite down, then adopt high temperature lamination to make a whole, treat its cooling back, fix the installation of terminal box 5 on ETFE membrane 7 top surface, test whether its power parameter accords with the preset condition, if then this solar energy crystalline silicon subassembly is qualified, the preparation is accomplished.

The ETFE film 7 and the EVA adhesive film described above are both transparent films, the back film 8 is a white back film, the substrate 1 is a galvanized steel substrate, and the U-shaped sealing strip 4 is a metal rubber composite sealing strip. The solar crystalline silicon component can be set in various shapes such as a square shape, a rectangular shape and the like.

As shown in fig. 2 to 5, taking a 10W/36V square solar crystalline silicon module as an example, the dimensions of the components are as follows:

substrate size: the galvanized steel substrate has the specification model of 295 multiplied by 320 multiplied by 1.6 mm;

EVA adhesive film: the specification of the special solar adhesive film is 295 multiplied by 320 multiplied by 0.35 mm;

battery piece: the specification model of the single crystal A-grade five-gate battery plate is 4.5W/plate;

ETFE membrane: the solar energy is special, and the specification model is 300 multiplied by 325 multiplied by 0.25 mm.

As shown in fig. 6 to 9, taking a 10W/36V rectangular crystalline silicon device as an example, the dimensions of the components are as follows:

substrate size: the galvanized steel substrate has the specification model of 227 multiplied by 404 multiplied by 1.6 mm;

EVA adhesive film: the specification of the special solar adhesive film is 230 multiplied by 405 multiplied by 0.35 mm;

battery piece: the specification model of the single crystal A-grade five-gate battery plate is 4.5W/plate;

ETFE membrane: the solar energy is special, and the specification model is 230 multiplied by 405 multiplied by 0.25 mm.

The utility model discloses in use the crystalline silica photovoltaic module of ETFE membrane and steel substrate encapsulation, can use current equipment processing, have pleasing to the eye advantage, can increase power output simultaneously again, this subassembly has stronger anti ability of falling, and weight is lighter, can use in the field that needs certain bearing capacity.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. A solar crystalline silicon module comprising: the battery pack comprises a plurality of battery pieces which are arranged in an array manner, a layer of ETFE film is arranged on the top surface of the battery pack, and a layer of back film is arranged between the bottom surface of the battery pack and the substrate; the light trapping structure is characterized in that the top surface of the ETFE membrane is in a honeycomb shape to form the light trapping structure.

2. The solar crystalline silicon module as claimed in claim 1 wherein the cell stack further comprises a plurality of copper ribbons and bus bars, wherein each row of cells in the cell stack is connected in series by one of the copper ribbons, and wherein two adjacent rows of cells in the cell stack are connected in series by one of the bus bars.

3. The solar crystalline silicon module as claimed in claim 1, wherein the substrate is wrapped with a ring of U-shaped sealing bars, and the periphery of the ETFE film extends beyond the cell set and is clamped and sealed between the U-shaped sealing bars and the substrate.

4. The solar crystalline silicon module as claimed in claim 1, wherein EVA films are disposed between the ETFE film and the cell set, between the cell set and the back film, and between the back film and the substrate.

5. The solar crystalline silicon module as claimed in claim 4, wherein the ETFE film, the first EVA film, the battery pack, the second EVA film, the back film, the third EVA film and the substrate are laminated in sequence from top to bottom and then are laminated to form a whole.

6. The solar crystalline silicon module as claimed in claim 4, wherein the ETFE film and the EVA film are transparent films, and the back film is a white back film.

7. The solar crystalline silicon module as claimed in claim 1, wherein a junction box is disposed on the top surface of the ETFE film and on one side of the battery pack, the junction box is provided with a power supply hole, and the battery pack is electrically connected to the power supply hole.

8. The solar crystalline silicon assembly as claimed in claim 7, wherein a cable is connected to the power supply hole, and an output plug is arranged at a movable end of the cable.

9. The solar crystalline silicon module as claimed in claim 7 wherein the junction box has dimensions of 33 x 25 x 5 mm.

10. The solar crystalline silicon module as defined in claim 1, wherein the solar crystalline silicon module has a square or rectangular shape.

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