CN102945884A - Crystalline silicon solar cell component - Google Patents

Abstract

The invention discloses a crystalline silicon solar cell module, which comprises a substrate, a battery sheet and a cover plate, the substrate, the battery sheet and the cover plate are bonded by an ethylene-vinyl acetate copolymer, and the substrate The middle part has a cavity that can accommodate water flow through, and the two ends of the cavity are respectively connected with a water supply device and a drainage device, and a number of cooling fins matching with the battery sheet are arranged on the inner surface of the top of the cavity. During the working process, the cooling water is passed into the cavity through the water supply device, so as to take away the heat of the related structure of the battery component through the heat exchange between the water flow and the cavity wall, and accelerate the heat dissipation of the battery component, thereby The overall heat dissipation efficiency and heat dissipation effect of the crystalline silicon solar cell assembly can be significantly improved, and the related components can be adapted to a higher concentration multiple, so that the overall working efficiency of the crystalline silicon solar cell assembly can be correspondingly improved .

Description

A crystalline silicon solar cell module

technical field

The invention relates to the technical field of photovoltaic component manufacturing, in particular to a crystalline silicon solar cell component.

Background technique

In the current field of photovoltaic technology, crystalline silicon solar cell modules are a widely used solar energy absorption and conversion device, and with the continuous improvement of use requirements, people have put forward higher requirements for the performance of crystalline silicon solar cell modules .

At present, the existing crystalline silicon solar cell modules usually dissipate heat through heat sinks during the working process, so as to avoid thermal aging of the related structures of the cell modules caused by long-term high-temperature operation, and ensure their safe use. However, although this heat dissipation method can meet the basic needs of crystalline silicon solar cell modules, due to its low heat dissipation efficiency and poor heat dissipation effect, the light intensity that crystalline silicon solar cell modules can withstand during work is very limited. It can only be maintained below 6 times the concentrating conditions. If the concentrating multiple is slightly higher, it will cause non-working damage such as aging and deformation of the relevant structures of the battery components, which seriously restricts the application environment and working efficiency of crystalline silicon solar cell components.

Therefore, how to improve the heat dissipation efficiency and heat dissipation effect of the crystalline silicon solar cell module is an important technical problem to be solved by those skilled in the art.

Contents of the invention

The object of the present invention is to provide a crystalline silicon solar cell module, which has higher heat dissipation efficiency and better heat dissipation effect.

In order to solve the above technical problems, the present invention provides a crystalline silicon solar cell module, including a substrate, a battery sheet and a cover plate, and the substrate, the battery sheet and the cover plate are bonded by an ethylene-vinyl acetate copolymer , the middle part of the base plate has a cavity that can accommodate the passage of water, the two ends of the cavity are respectively connected with a water supply device and a drainage device, and the top inner surface of the cavity is provided with a number of heat sinks that match the battery sheet. piece.

Preferably, several diodes matching with the battery slices are integrated inside the substrate.

Preferably, both ends of the substrate are respectively provided with a positive terminal box and a negative terminal box connected to the diode.

Preferably, each of the diodes is specifically distributed at the rear of the cavity.

Preferably, the base plate is provided with a water flow control device respectively matched with the water supply device and the drainage device.

Preferably, the cover plate is specifically low-iron ultra-clear tempered glass.

With respect to the above-mentioned background technology, the crystalline silicon solar cell module provided by the present invention includes a substrate, a battery sheet and a cover plate, and the substrate, the battery sheet and the cover plate are bonded by ethylene-vinyl acetate copolymer, The middle part of the base plate has a cavity that can accommodate water flow through, and the two ends of the cavity are respectively connected with a water supply device and a drainage device, and a number of cooling fins that are matched with the battery sheet are arranged on the inner surface of the top of the cavity . During the working process, the cooling water is passed into the cavity through the water supply device, so as to take away the heat of the related structure of the battery component through the heat exchange between the water flow and the cavity wall, and accelerate the heat dissipation of the battery component, thereby The overall heat dissipation efficiency and heat dissipation effect of the crystalline silicon solar cell assembly can be significantly improved, and the related components can be adapted to a higher concentration multiple, so that the overall working efficiency of the crystalline silicon solar cell assembly can be correspondingly improved At the same time, the hot water discharged from the cavity through the drainage device can be used for daily production water, especially for production and domestic water in cold environments such as winter, which brings convenience.

In another preferred solution of the present invention, a plurality of diodes matched with the battery slices are integrated inside the substrate. Integrating the diodes into the substrate makes it unnecessary to install diodes and related working structures outside the main structure of the crystalline silicon solar cell module during assembly and use, thereby effectively improving the overall performance of the crystalline silicon solar cell module. Assembly efficiency makes the assembly process simple and easy.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

Fig. 1 is a schematic diagram of the assembly structure of a crystalline silicon solar cell module provided by a specific embodiment of the present invention;

FIG. 2 is a partial structural cross-sectional view of the end of the battery assembly in FIG. 1 .

Detailed ways

The core of the present invention is to provide a crystalline silicon solar cell module, which has higher heat dissipation efficiency and better heat dissipation effect.

In order to enable those skilled in the art to better understand the solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

Please refer to Figure 1 and Figure 2, Figure 1 is a schematic diagram of the assembly structure of a crystalline silicon solar cell module provided by a specific embodiment of the present invention; Figure 2 is a partial structural cross-sectional view of the end of the cell module in Figure 1 .

In a specific embodiment, the crystalline silicon solar cell assembly provided by the present invention includes a substrate 11, a battery sheet 12 and a cover plate 13, and the substrate 11, the battery sheet 12 and the cover plate 13 are bonded by an ethylene-vinyl acetate copolymer , the middle part of the base plate 11 has a cavity 14 that can accommodate water flow through, and the two ends of the cavity 14 are respectively connected with a water supply device (not shown in the figure) and a drainage device (not shown in the figure), and the top of the cavity 14 There are several cooling fins 15 matched with battery slices 12 on the surface. During the working process, the cooling water is passed into the cavity 14 through the water supply device, so that the heat of the related structure of the battery assembly can be taken away by the heat exchange between the water flow and the wall of the cavity 14, and the heat dissipation of the battery assembly can be accelerated, so that all The overall heat dissipation efficiency and heat dissipation effect of the crystalline silicon solar cell components are significantly improved, and its related components can adapt to a higher concentration multiple, thereby making the overall working efficiency of the crystalline silicon solar cell components correspondingly improved; at the same time The hot water discharged from the cavity 14 through the drainage device can be used for daily production water, which is especially convenient for production and domestic water in cold environments such as winter.

Further, a plurality of diodes 16 matching with the battery sheet 12 are integrated inside the substrate 11 . Integrating the diode 16 into the substrate 11 makes it unnecessary to install diodes and related working structures outside its main structure during the assembly and use of the crystalline silicon solar cell module, thereby effectively improving the overall assembly efficiency of the crystalline silicon solar cell module , making the assembly process simple and easy.

On the other hand, a positive terminal box (not shown in the figure) and a negative terminal box (not shown in the figure) connected to the diode 16 are respectively provided at both ends of the substrate 11 . This kind of connection structure that uses the junction box to directly lead out the positive and negative poles so as to communicate with external devices can effectively reduce the length of wires between related devices, simplify the assembly and connection process, and simplify the assembly structure accordingly.

It should be pointed out that in the actual production operation process, the wires are usually directly drawn out to the positive junction box and the negative junction box through holes at both ends of the substrate 11. Of course, this kind of hole connection method is only a preferred solution. The wiring method is not limited to the perforation described above, as long as it can meet the actual use requirements of the crystalline silicon solar cell module.

In addition, each diode 16 is specifically distributed at the rear of the cavity 14 . Arranging the diodes 16 at the rear of the cavity 14 can ensure that the heat emitted by each diode 16 in the working state is taken away by the water flow in the cavity 14, so as to effectively reduce the working temperature of the diodes 16, so that the working efficiency of the diodes 16 is remarkable. Improve and extend its service life accordingly.

Certainly, the arrangement position of the above-mentioned diode 16 is not limited to the rear part of the cavity 14 shown in the figure, as long as it can meet the actual use requirements of the crystalline silicon solar cell module.

More specifically, water flow control devices (not shown in the figure) respectively matched with the water supply device and the drainage device are arranged on the base plate 11 . During the working process, the water flow rate in the water supply system is adjusted by the water flow control device to meet the heat dissipation requirements of the crystalline silicon solar cell module under different working conditions, so as to ensure that it can work stably in a suitable temperature environment, so as to To further improve its work efficiency.

In addition, the cover plate 11 is specifically low-iron ultra-clear tempered glass. This kind of low-iron ultra-clear tempered glass has high light transmittance, can further improve the light utilization rate of the cover plate, and its market supply is relatively large, and it is easy to purchase, so that the manufacturing cost of the crystalline silicon solar cell module can be reduced. reduce accordingly.

In summary, the crystalline silicon solar cell module provided in the present invention includes a substrate, a battery sheet, and a cover plate, and the substrate, the battery sheet, and the cover plate are bonded by an ethylene-vinyl acetate copolymer, so The middle part of the base plate has a cavity that can accommodate water flow through, and the two ends of the cavity are respectively connected with a water supply device and a drainage device, and a plurality of cooling fins matched with the battery sheet are arranged on the inner surface of the top of the cavity. During the working process, the cooling water is passed into the cavity through the water supply device, so as to take away the heat of the related structure of the battery component through the heat exchange between the water flow and the cavity wall, and accelerate the heat dissipation of the battery component, thereby The overall heat dissipation efficiency and heat dissipation effect of the crystalline silicon solar cell assembly can be significantly improved, and the related components can be adapted to a higher concentration multiple, so that the overall working efficiency of the crystalline silicon solar cell assembly can be correspondingly improved At the same time, the hot water discharged from the cavity through the drainage device can be used for daily production water, especially for production and domestic water in cold environments such as winter, which brings convenience.

The crystalline silicon solar cell module provided by the present invention has been introduced in detail above. In this paper, specific examples are used to illustrate the principle and implementation of the present invention, and the descriptions of the above embodiments are only used to help understand the method and core idea of the present invention. It should be pointed out that for those skilled in the art, without departing from the principle of the present invention, some improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims (6)

1. crystal silicon solar battery component, comprise substrate, cell piece and cover plate, mutually bonding by ethylene-vinyl acetate copolymer between described substrate, described cell piece and described cover plate, it is characterized in that: the middle part of described substrate has can hold the cavity that current pass through, the two ends of described cavity are connected with respectively water supply installation and drainage arrangement, are provided with some fin that match with cell piece on the top inner surface of described cavity.

2. crystal silicon solar battery component as claimed in claim 1, it is characterized in that: the inside of described substrate is integrated with the diode that some and described cell piece matches.

3. crystal silicon solar battery component as claimed in claim 2, it is characterized in that: the two ends of described substrate are respectively arranged with anodal terminal box and the negative pole terminal box that links to each other with described diode.

4. crystal silicon solar battery component as claimed in claim 2, it is characterized in that: each described diode specifically is distributed in the rear portion of described cavity.

5. crystal silicon solar battery component as claimed in claim 1 is characterized in that: be provided with the flow control apparatus for water that matches with described water supply installation and described drainage arrangement respectively on the described substrate.

6. such as each described crystal silicon solar battery component in the claim 1 to 5, it is characterized in that: described cover plate is specially low iron ultrawhite toughened glass.

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