Top-con solar cell skylight

Abstract

The utility model discloses a Top-con (Top-con) solar cell skylight. The Top-con solar cell module comprises skylight glass arranged on a top layer, a packaging material arranged on a bottom layer and a Top-con solar cell arranged between the skylight glass and the packaging glass, an upper layer adhesive film is bonded on the bottom surface of the skylight glass, and a lower layer adhesive film is bonded on the top surface of the packaging material. The Top-con solar cell is bonded between the upper layer adhesive film and the lower layer adhesive film and is pressed and packaged in an interlayer formed by the skylight glass and the packaging material. The utility model has the advantages that high power generation efficiency and higher conversion efficiency can be realized only by increasing a very small amount of cost, so that the vehicle can obtain more clean energy, the purpose of providing more electric quantity for the vehicle body is realized, and through verification, the endurance gain of 10-30 kilometers per day can be even provided for the new energy vehicle; the Top-con solar skylight can be prepared into a flat-plate-shaped skylight or a curved-surface skylight so as to meet different requirements of customers.

Description

Technical Field

[0001] The utility model relates to a car solar skylight, in particular to a Top-con solar cell skylight. Background Art

[0002] With the increasing awareness of environmental protection, new energy vehicles have gradually become an important trend in the development of future transportation. However, for many potential car buyers, the "range anxiety" of new energy vehicles has become a lingering concern. The range of new energy vehicles directly affects people's confidence in buying new energy vehicles. Solar sunroof technology has begun to be used in some models. It generates electricity under the sun, drives loads such as fans in the car to supply power, reduces the temperature in the car, provides power for the on-board refrigerator, and can even charge the battery after increasing the solar power, thereby increasing the range of new energy vehicles.

[0003] Since the area of ​​the sunroof is always limited, the power generation is very limited. Therefore, in order to increase the power generation, the conversion efficiency of solar energy must be increased. The conversion efficiency of solar energy in the existing technology is limited by the development of science and technology. Therefore, how to break through the limitations of the existing technology to achieve a higher conversion rate has become a technical problem that needs to be solved. At present, the power generation of existing solar sunroofs is low, and the proportion of electricity used in the car is very small, while Top-con batteries have obvious efficiency improvements. Therefore, how to apply Top-con batteries to sunroofs to fully improve their efficiency, thereby providing more clean energy for the car, is crucial to the improvement of the mileage of new energy vehicles. Summary of the invention

[0004] The technical problem to be solved by the utility model is to provide a Top-con solar cell sunroof with a reasonable structural design, thereby being able to fully improve the power generation efficiency and thereby provide more clean energy for the automobile.

[0005] In order to solve the above technical problems, the Top-con solar cell skylight of the utility model includes a skylight glass arranged on the top layer, a packaging material arranged on the bottom layer, and a Top-con solar cell arranged between the skylight glass and the packaging glass. The bottom surface of the skylight glass is bonded with an upper layer of adhesive film, the top surface of the packaging material is bonded with a lower layer of adhesive film, and the Top-con solar cell is bonded between the upper layer of adhesive film and the lower layer of adhesive film and is press-sealed and packaged in the interlayer formed by the skylight glass and the packaging material.

[0006] The skylight glass is organic tempered semi-tempered glass or inorganic glass.

[0007] The upper adhesive film and the lower adhesive film are both made of PVB or EVA materials.

[0008] The packaging material is organic tempered or semi-tempered glass, inorganic glass or a photovoltaic back sheet.

[0009] The thickness of the skylight glass is 1-5 mm, and the visible light transmittance is greater than 90%.

[0010] The Top-con solar cell is composed of a plurality of solar cells, each of which is sandwiched between a lower adhesive film and an upper adhesive film and bonded to the upper and lower adhesive films.

[0011] The battery cells are connected in series or in parallel.

[0012] The battery cells are connected by welding with welding strips.

[0013] The battery cells are connected by silver glue bonding.

[0014] The advantages of the utility model are:

[0015] In the assembly process of the solar sunroof, the Top-con solar cells are encapsulated in the interlayer of the sunroof to form the product. That is to say, the preparation can be directly carried out using the assembly process of the sunroof, and the Top-con solar cells are pressed and encapsulated in the interlayer formed by the sunroof glass and the encapsulation material, thereby playing a role in photoelectric conversion. Therefore, only a very small amount of cost is added to achieve high power generation efficiency. Higher conversion efficiency enables the vehicle to obtain more clean energy, thereby achieving the purpose of providing more electricity for the vehicle body. It has been verified that it can even provide new energy vehicles with a range gain of 10 to 30 kilometers per day. In addition, all raw materials and components in the Top-con solar sunroof have certain bending properties, and flat sunroofs or curved sunroofs can be prepared to meet the different needs of customers. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the Top-con solar cell skylight of the utility model. DETAILED DESCRIPTION

[0017] The Top-con solar cell skylight of the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0018] like Figure 1As shown, the Top-con solar cell skylight of the utility model comprises a skylight glass 1 arranged on the top layer, a packaging material 5 arranged on the bottom layer, and a Top-con solar cell 3 arranged between the skylight glass and the packaging glass, wherein the size of the Top-con solar cell 3 can be 210mm*210mm, 182mm*182mm, 166mm*166mm, 210mm*182mm, etc., the skylight glass can be an organic tempered semi-tempered glass or an inorganic glass, which plays a role in protection and structural strength support, and the packaging material can be an organic tempered semi-tempered glass or an inorganic glass and can also be a polymer packaging material such as a photovoltaic backplane, which plays a role in protecting the battery cell, in addition, the thickness of the skylight glass 1 is preferably 1-5mm, and the visible light transmittance is greater than 90%. In this embodiment, the skylight glass and the packaging material are both made of 2mm thick inorganic glass, and the visible light transmittance of the skylight glass is 92%, and the infrared transmittance is 90%;

[0019] An upper adhesive film 2 is bonded to the bottom surface of the skylight glass 1, and a lower adhesive film 4 is bonded to the top surface of the packaging material 5. The upper adhesive film 2 and the lower adhesive film 4 can be adhesive films such as PVB or EVA, which play the role of bonding the skylight glass 1, the packaging material 5 and the Top-con solar cells 3 therein; the Top-con solar cells 3 are bonded between the upper adhesive film and the lower adhesive film and pressed and packaged in the interlayer formed by the skylight glass and the packaging material. In this embodiment, the lower surface of the skylight glass and the upper surface of the Top-con solar cells are bonded by a highly transparent PVB adhesive film, and the lower surface of the Top-con solar cells and the upper surface of the packaging material are also bonded by a PVB adhesive film.

[0020] Furthermore, the Top-con solar cell 3 is composed of multiple cells, that is, the Top-con cell original sheet can be cut into any suitable small size, and each cell is sandwiched between the lower film and the upper film and bonded to the upper and lower films.

[0021] Among them, the following connection methods can be used for the connection of each battery cell:

[0022] (1) The battery cells are connected in series or in parallel.

[0023] (2) Each battery cell is connected by serial welding, which can be 5~16BB or no main grid connection.

[0024] (3) Each cell is connected by silver glue. The cells of the Top-con solar cell are glued into a string by silver glue, and then the strings are connected in parallel by welding tape to form positive and negative electrodes. The output electrode is led out from the electrode output hole set on the packaging material.

[0025] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by technicians in this technical field within the essential scope of the present invention should also fall within the protection scope of the present invention.

Claims

1. A top-con solar cell skylight, comprising skylight glass (1) arranged on a top layer, a packaging material (5) arranged on a bottom layer, and a top-con solar cell (3) arranged between the skylight glass and the packaging glass, wherein an upper adhesive film (2) is bonded to the bottom surface of the skylight glass (1), a lower adhesive film (4) is bonded to the top surface of the packaging material (5), and the top-con solar cell (3) is bonded between the upper adhesive film and the lower adhesive film and is pressed and packaged in a sandwich formed by the skylight glass and the packaging material.

2. The Top-con solar cell skylight according to claim 1, characterized in that: The skylight glass (1) is organic tempered, semi-tempered glass or inorganic glass.

3. The Top-con solar cell skylight according to claim 1 or 2, characterized in that: The upper adhesive film (2) and the lower adhesive film (4) are both made of PVB or EVA.

4. The Top-con solar cell skylight according to claim 3, characterized in that: The packaging material (5) is organic tempered or semi-tempered glass, inorganic glass or a photovoltaic back panel.

5. The Top-con solar cell skylight according to claim 1, 2 or 4, characterized in that: The skylight glass (1) has a thickness of 1 to 5 mm and a visible light transmittance of >90%.

6. The Top-con solar cell skylight according to claim 5, characterized in that: The Top-con solar cell (3) is composed of a plurality of solar cells, each of which is sandwiched between a lower adhesive film and an upper adhesive film and bonded to the upper and lower adhesive films.

7. The Top-con solar cell skylight according to claim 6, characterized in that: The battery cells are connected in series or in parallel.

8. The Top-con solar cell skylight according to claim 6, characterized in that: The battery cells are connected by welding with welding strips.

9. The Top-con solar cell skylight according to claim 6, characterized in that: The battery cells are connected by silver glue bonding.

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