CN201877445U - Solar battery component structure - Google Patents

Abstract

The utility model relates to a structure of a solar battery assembly, which comprises a back plate located at the bottom, a lower EVA layer above the back plate, a battery string layer above the lower EVA layer, an upper EVA layer above the battery string layer, and an upper EVA layer above the upper EVA layer. It is a tempered glass layer, and the battery string layer includes at least two adjacent battery strings, and the junction of the front or back of the adjacent battery strings is overlapped with a connecting body. The utility model provides a solar cell module production process, in the process of transferring and laminating the stacked components, the battery strings are not easy to shift, and the adjacent battery strings will not be squeezed. , so as not to cause the structure of the solar cell module to be scrapped.

Description

Structure of solar cell modules

technical field

The utility model relates to the field of energy technology, in particular to a structure of a solar cell assembly.

Background technique

A solar cell module is a device that directly converts sunlight energy into electrical energy by using the photovoltaic effect. When sunlight hits the surface of the cell module, it will generate photoelectric current. The structure of the currently used solar cell module includes a back sheet at the bottom, above the back sheet is the lower EVA layer, above the lower EVA layer is the battery string layer, above the battery string layer is the upper EVA layer, and above the upper EVA layer is tempered glass layer, the battery string layer includes at least two adjacently arranged battery strings. The production process of solar cell modules includes steps such as welding the surface of the battery sheet, welding the battery string, stacking, lamination packaging, and framing. In the lamination process, the tempered glass is placed first, then a layer of EVA is laid on the tempered glass, and then the welded battery strings are spread on the EVA, the circuit is connected, another layer of EVA is laid on the battery strings, and finally a layer of EVA is laid on the battery strings. Layer backplane, after the laying is completed, fix it with high-temperature tape around the periphery, and then send it to the laminator for lamination and packaging. The disadvantage of the solar cell module with the above structure is: during the production process of the solar cell module, during the process of transferring and laminating the stacked components, the cell strings are prone to displacement, and even the adjacent cell strings may be squeezed. Pressure, resulting in scrapped components, this problem has caused great losses to production.

Utility model content

The technical problem to be solved by the utility model is: to provide a solar cell module production process, in the process of transferring and laminating the stacked components, the battery strings are not easy to shift, and the adjacent battery strings There will be no extrusion between the solar cell modules, which will not cause the components to be scrapped.

In order to solve the above problems, the technical solution adopted by the utility model is: the structure of the solar cell module includes a back plate located at the bottom, the upper part of the back plate is the lower EVA layer, the upper part of the lower EVA layer is the battery string layer, and the upper part of the battery string layer is The upper EVA layer is a toughened glass layer above the upper EVA layer. The battery string layer includes at least two adjacent battery strings, and the junction of the front or back of the adjacent battery strings is overlapped with a connector.

The connecting body is a high-temperature fixing tape.

At least two connectors are respectively provided at the junctions of the adjacent battery strings.

The beneficial effect of the utility model is: the solar battery module with the above structure is provided with a connecting body at the junction of adjacent battery strings, so that in the production process of the solar battery module, in the process of transferring and laminating the stacked modules, The battery strings are not easy to shift, and there will be no extrusion between adjacent battery strings, so that components will not be scrapped and production loss will be reduced.

Description of drawings

Fig. 1 is the schematic diagram of the structure of solar cell assembly described in the utility model;

Fig. 2 is the sectional structure diagram of A-A direction in Fig. 1;

In the figure: 1. Backplane, 2. Lower EVA layer, 3. Battery string layer, 4. Upper EVA layer, 5. Tempered glass layer, 6. High temperature fixing tape.

Detailed ways

The structure of the solar battery module of the present invention will be further described in detail through specific examples below.

As shown in Figure 1 and Figure 2, the structure of the solar cell module includes a back sheet 1 at the bottom, the upper part of the back sheet 1 is the lower EVA layer 2, the upper part of the lower EVA layer 2 is the battery string layer 3, and the upper part of the battery string layer 3 is It is the upper EVA layer 4, and the upper part of the upper EVA layer 4 is a tempered glass layer 5. The battery string layer 3 includes several adjacently arranged battery strings, and the front junction of the adjacent battery strings is overlapped with two A high temperature fixing tape6. Alternatively, two high-temperature fixing adhesive tapes 6 may be overlapped at the junction of opposite surfaces of adjacent battery strings.

The beneficial effects of the utility model are: the solar battery module with the above structure is provided with a high-temperature fixing tape 6 at the junction of adjacent battery strings, and the high-temperature fixing tape 6 can withstand a high temperature of 180 degrees without melting, and is transparent, non-toxic and odorless , anti-aging, without any damage to the solar cell module, through the fixing effect of the high-temperature fixing tape 6, the fixed connection between adjacent battery strings is realized, so that the entire battery string layer 3 is connected as a whole. In the production process of solar cell modules, in the process of transferring and laminating the laminated components, the cell strings are not easy to shift, and there will be no extrusion between adjacent cell strings, so that the components will not be scrapped , reducing production losses.

Claims (3)

1. The structure of the solar cell module, including the back plate at the bottom, the lower EVA layer above the back plate, the battery string layer above the lower EVA layer, the upper EVA layer above the battery string layer, and the toughened glass layer above the upper EVA layer , the battery string layer includes at least two adjacent battery strings, characterized in that: the junction of the front or back of the adjacent battery strings is overlapped with a connector. 2 . The structure of the solar battery module according to claim 1 , wherein at least two connectors are respectively provided at the junctions of the adjacent battery strings. 3 . 3. The solar cell module structure according to claim 1 or 2, characterized in that: the connecting body is a high-temperature fixing tape.

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