CN203339199U - Solar photovoltaic modules - Google Patents

Abstract

The utility model discloses a solar photovoltaic assembly, which comprises a photovoltaic array and a frame, wherein the photovoltaic array is formed by connecting a plurality of photovoltaic batteries in series and packaging the connected photovoltaic batteries, and the outer edge of the photovoltaic array is clamped in the frame. The photovoltaic battery comprises a battery board used for photoelectric conversion, an upper cover plate and a back plate, wherein the upper cover plate and the back plate are used for packaging the battery board, an EVA packaging adhesive layer is arranged between the battery board and the upper cover plate and between the battery board and the back plate, the inner side surface of the back plate is provided with a reflective layer, and the outer side surface of the back plate is provided with a radiating device. According to the utility model, the outer side of the back plate of the photovoltaic battery is provided with the radiating structure, so that heat generated in the working process of the photovoltaic battery can be emitted to the outside through the radiating structure, thereby improving the power generation efficiency of the solar photovoltaic assembly, and being low in operation cost, less in maintenance and long in service life.

Description

Solar photovoltaic modules

technical field

The utility model relates to the field of energy technology, in particular to a solar photovoltaic module.

Background technique

Solar photovoltaic modules mainly convert light energy into electrical energy through solar photovoltaic panels and store them in batteries, which can be used for lighting in stairwells, lighting in emergency lights, and control of intelligent systems. Solar photovoltaic power generation system has become the most important photovoltaic application in the world market because of its easy installation, stable power and long life.

Solar photovoltaic modules are devices that directly convert sunlight energy into electrical energy due to the photovoltaic effect. When sunlight hits the surface of the battery module, photoelectric current will be generated. Among them, solar photovoltaic panels must be in a completely sealed state, and solar photovoltaic modules should be able to resist wind and sand, humidity, corrosion and various damages caused by weather changes. Solar photovoltaic panels are eroded by rain and dew for a long time, and their sealing performance will be affected, and they are easily corroded and damaged, which will affect the photoelectric conversion efficiency and service life of solar photovoltaic panels.

On the other hand, the output power of solar photovoltaic panels in solar photovoltaic modules will decrease to a certain extent with the increase of temperature, resulting in a decrease in power generation efficiency. How to improve the power generation efficiency of solar photovoltaic panels through heat dissipation and cooling measures is still a difficult problem.

Utility model content

Aiming at the above-mentioned problems in the prior art, the utility model provides a solar photovoltaic module with good heat dissipation effect, high power generation efficiency and long service life.

In order to achieve the above object, the technical solution adopted by the utility model is:

A solar photovoltaic module, including a photovoltaic array and a frame, the photovoltaic array is packaged by a plurality of photovoltaic cells connected in series, the outer edge of the photovoltaic array is clamped in the frame, characterized in that: the photovoltaic cell It includes a battery board for photoelectric conversion and an upper cover plate and a back plate for encapsulating the battery plate. An EVA packaging adhesive layer is arranged between the battery plate and the upper cover plate and between the battery plate and the back plate. The back plate A reflective layer is arranged on the inner side of the backboard, and a heat dissipation device is arranged on the outer side of the backboard.

In the preferred technical solution, the frame is a rectangular frame formed by fixed connection of four frames, and the frame is a stainless steel or aluminum alloy frame.

In the preferred technical solution, the upper cover is made of tempered glass, polyacrylic resin, fluorinated ethylene propylene, transparent polyester or transparent polycarbonate.

In the preferred technical solution, the backboard is made of tempered glass, aluminum alloy, plexiglass or tpt composite film.

In a preferred technical solution, the heat dissipation device is a plurality of metal heat dissipation ribs arranged on the outer surface of the backplane.

In the preferred technical solution, a plurality of metal cooling ribs are distributed in a straight line, a ring or a spiral.

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

In the utility model, a heat dissipation structure is arranged on the outside of the back plate of the photovoltaic cell, so that the heat generated during the working process of the photovoltaic cell can be dissipated to the outside through the heat dissipation structure, thereby improving its power generation efficiency, low operating cost, less maintenance, and long service life.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Fig. 2 is a structural schematic diagram of the photovoltaic cell of the present invention.

Detailed ways

The utility model will be further described below in conjunction with accompanying drawing.

A solar photovoltaic module, including a photovoltaic array 1 and a frame 2, the photovoltaic array 1 is packaged by a plurality of photovoltaic cells 3 connected in series, the outer edge of the photovoltaic array 1 is clamped in the frame 2, the Photovoltaic cell 3 comprises a battery plate 31 for photoelectric conversion and an upper cover plate 32 and a back plate 33 for encapsulating the battery plate 31, between the battery plate 31 and the upper cover plate 32 and between the battery plate 31 and the back plate 33 An EVA packaging glue layer 34 is provided, a reflective layer 35 is provided on the inner surface of the back plate 33 , and a heat dissipation device is provided on the outer surface of the back plate 33 .

In a preferred technical solution, the frame 2 is a rectangular frame formed by fixedly connecting four frames, and the frame 2 is a stainless steel or aluminum alloy frame.

In a preferred technical solution, the upper cover 32 is an upper cover made of tempered glass, polyacrylic resin, fluorinated ethylene propylene, transparent polyester or transparent polycarbonate.

In a preferred technical solution, the back plate 33 is a back plate made of tempered glass, aluminum alloy, plexiglass or tpt composite film.

In a preferred technical solution, the heat dissipation device is a plurality of metal heat dissipation ribs 36 arranged on the outer surface of the back plate 33 .

In a preferred technical solution, a plurality of metal cooling ribs 36 are distributed in a straight line, a ring or a spiral.

Referring to Fig. 1 and Fig. 2, it is a specific embodiment of the present utility model, a kind of solar photovoltaic assembly, comprises photovoltaic array 1 and frame 2, and frame 2 is the aluminum alloy frame of rectangle, and described photovoltaic array 1 is made up of a plurality of photovoltaic cells 3 is packaged after being connected in series, the outer edge of the photovoltaic array 1 is clamped in the frame 2, and the photovoltaic cell 3 includes a battery board 31 for photoelectric conversion and a tempered glass upper cover for encapsulating the battery board 31 Plate 32 and back plate 33, EVA encapsulation adhesive layer 34 is provided between the battery plate 31 and the upper cover plate 32 and between the battery plate 31 and the back plate 33, and a reflective layer is provided on the inner side of the back plate 33 35. A heat dissipation device is provided on the outer surface of the back plate 33. The heat dissipation device is a plurality of metal heat dissipation ribs 36 arranged on the outer surface of the back plate 33 . A plurality of metal cooling ribs 36 are distributed in a straight line, a ring or a spiral. In actual operation, metal heat dissipation ribs can be processed into different shapes. In this way, when the solar photovoltaic module is running, the metal cooling ribs can take away heat and improve its power generation efficiency, so that the entire device has low operating costs, less maintenance, and a long service life.

The above description of the disclosed embodiments enables those skilled in the art to realize or use the utility model. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present utility model . Therefore, the present invention will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims (6)

1. A solar photovoltaic module, comprising a photovoltaic array and a frame, the photovoltaic array is packaged by a plurality of photovoltaic cells after being connected in series, the outer edge of the photovoltaic array is clamped in the frame, it is characterized in that: The photovoltaic cell includes a battery plate for photoelectric conversion and an upper cover plate and a back plate for encapsulating the battery plate, and an EVA packaging adhesive layer is arranged between the battery plate and the upper cover plate and between the battery plate and the back plate. A reflective layer is arranged on the inner side of the backboard, and a heat dissipation device is arranged on the outer side of the backboard. 2. The solar photovoltaic module according to claim 1, characterized in that: the frame is a rectangular frame formed by fixedly connecting four frames, and the frame is a stainless steel or aluminum alloy frame. 3. The solar photovoltaic module according to claim 2, wherein the upper cover plate is made of tempered glass, polyacrylic resin, fluorinated ethylene propylene, transparent polyester or transparent polycarbonate. cover plate. 4. The solar photovoltaic module according to claim 3, characterized in that: the backboard is made of tempered glass, aluminum alloy, plexiglass or tpt composite film. 5. The solar photovoltaic module according to claim 1, 2, 3 or 4, characterized in that: the heat dissipation device is a plurality of metal heat dissipation ribs arranged on the outer surface of the back plate. 6. The solar photovoltaic module according to claim 5, characterized in that: a plurality of metal cooling ribs are distributed in a straight line, a ring or a spiral.

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