CN205326433U - A laminator for photovoltaic module - Google Patents

Abstract

The utility model provides a laminator for photovoltaic components, which is used for laminating and forming the photovoltaic components. The laminator includes an upper cover and a heating plate opposite to the upper cover. A laminate cavity for placing photovoltaic components is formed between the upper cover and the heating plate. The laminator also includes a silicone plate that presses the photovoltaic module under the action of air pressure. The silica gel plate is fixed on the side of the upper cover facing the heating plate, and the thickness is greater than or equal to 2 mm and less than or equal to 3.2 mm, and the hardness is greater than or equal to 30HA Shore hardness and less than or equal to 55HA Shore hardness; the setting of this kind of silica gel plate makes the utility model The new type of laminator can be laminated without setting up a frame to obtain photovoltaic modules that are as reliable as lamination with a frame, and can be applied to automatic loading and unloading, which improves operating efficiency and saves manpower.

Description

Laminators for photovoltaic modules

technical field

The utility model relates to the technical field of lamination of photovoltaic modules, in particular to a lamination machine with good lamination effect and applicable to automatic loading and unloading.

Background technique

The packaging of photovoltaic modules is an important part of the manufacturing process of photovoltaic modules, making photovoltaic modules weather resistant. The mainstream equipment used in encapsulation is a laminator. In the laminator, the air in the photovoltaic module is drawn out by vacuuming, and then heated to melt the EVA to bond the cells, cover glass and back plate together; Atmospheric pressure presses and fixes the cover glass, cells and backplane together.

At present, when laminating double-glass photovoltaic modules, as shown in Figure 1, it is necessary to add a padded frame 300 around the photovoltaic module 200 to avoid the uneven pressure of the commonly used silica gel plate 100 on the edge of the double-glass photovoltaic module, which makes the The edge of the component is visibly thinned. However, adding padding and laminating the frame will lead to low operating efficiency, and automatic loading and unloading cannot be realized.

Therefore, it is necessary to provide an improved laminator for photovoltaic modules to solve the above problems.

Utility model content

The purpose of the utility model is to provide a lamination machine for photovoltaic modules with good lamination effect and applicable to automatic loading and unloading.

In order to achieve the purpose of the above utility model, the utility model provides a laminator for photovoltaic modules, which is used for laminating and forming photovoltaic modules. The laminator includes an upper cover and a heating plate opposite to the upper cover ; Between the upper cover and the heating plate, a lamination cavity for placing the photovoltaic module is formed; the laminator also includes a silica gel plate that pressurizes the photovoltaic module under the action of air pressure; the silica gel plate is fixed on the upper cover Towards the side of the heating plate, with a thickness greater than or equal to 2 mm and less than or equal to 3.2 mm, and a hardness greater than or equal to 30HA Shore hardness and less than or equal to 55HA Shore hardness.

As a further improvement of the utility model, the silica gel plate has a first part that presses on the top of the photovoltaic module during lamination and a second part that applies pressure on the side of the photovoltaic module sideways, and when the photovoltaic module is laminated, the The angle formed between the first part and the second part is greater than or equal to 90 degrees and less than or equal to 108 degrees.

As a further improvement of the present invention, when the photovoltaic module is laminated, the distance between the edge of the first part and the inner edge of the lamination cavity is greater than 20 cm.

As a further improvement of the utility model, the upper cover has air holes communicating with the lamination cavity.

The beneficial effects of the utility model are: the setting of the silica gel plate enables the laminator of the utility model to laminate without setting a surrounding frame to obtain a photovoltaic module as reliable as the lamination with a surrounding frame, and is applicable to automatic loading and unloading materials, improve operating efficiency, and save operating manpower.

Description of drawings

Fig. 1 is a lamination state view of a laminator provided with a surrounding frame and a photovoltaic module in the prior art.

Fig. 2 is a lamination state diagram of the laminator of the present invention and the photovoltaic module.

detailed description

The utility model will be described in detail below in conjunction with the embodiments shown in the accompanying drawings. However, these embodiments do not limit the present utility model, and any structural or functional changes made by those skilled in the art according to these embodiments are included in the protection scope of the present utility model.

Please refer to FIG. 2 , which shows a preferred embodiment of the laminator 100 of the present invention, which is mainly used for lamination and molding of photovoltaic modules 8 , especially double-glass modules.

The laminator 100 includes an upper cover 1 , a heating plate 2 opposite to the upper cover 1 , a silicone plate 3 fixed on the side of the upper cover 1 facing the heating plate 2 , a vacuum system and a control system (not shown). A lamination cavity 4 for placing a photovoltaic module 8 is formed between the upper cover 1 and the heating plate 2 . The silica gel plate 3 is used to press the photovoltaic module 8 under the action of air pressure during the lamination process.

As can be seen from FIG. 2 , the upper cover 1 in this embodiment is set in a concave shape, and the lamination cavity 4 includes an upper cavity 41 formed between the upper cover 1 and the silica gel plate 3 and an upper cavity 41 formed on the silica gel plate 3 . The lower cavity 42 between the plate 3 and the heating plate 2 . The photovoltaic module 8 is located in the lower cavity 42 . The upper cover 1 is provided with an air hole 11 communicating with the upper cavity 41 .

The silicone plate 3 has a first part 31 that presses on the top of the photovoltaic module 8 during lamination, and a second part 32 that applies pressure on the side of the photovoltaic module 8 obliquely. When laminating the photovoltaic module 8 , the distance between the edge of the first part 31 and the inner edge of the lamination cavity 4 is greater than 20 cm.

In the present utility model, the thickness of the silica gel plate 3 is greater than or equal to 2 millimeters and less than or equal to 3.2 millimeters, and the hardness is greater than or equal to 30HA Shore hardness and less than or equal to 55HA Shore hardness; the silica gel of the present utility model under such thickness and hardness When the board 3 is laminating the photovoltaic module 8, under the action of atmospheric pressure, the angle formed between the first part 31 and the second part 32 is greater than or equal to 90 degrees and less than or equal to 108 degrees; specifically, Under the premise that the air pressure charged into the upper cavity 41 through the air hole 11 is an atmospheric pressure, the angle between the first part 31 and the second part 32 will decrease with the hardness and thickness of the silica gel plate 3. When the thickness of the silica gel plate 3 is 3.2 mm and the hardness is 55HA Shore hardness, the included angle is 108 degrees. The photovoltaic module 8 obtained by lamination at this angle can meet the reliability verification requirements of the photovoltaic module 8, and there is no bad appearance output; thus There is no need to set a frame, which is suitable for automatic loading and unloading. However, when the material of the silica gel plate 3 is outside the range defined by the present invention, defects such as air bubbles and delamination may occur in the appearance quality of the photovoltaic module 8 .

When the utility model laminator 100 is in use, after the photovoltaic module 8 is placed on the heating plate 2, the upper cover 1 is closed, and then the upper chamber 41 and the lower chamber 42 are simultaneously vacuumed to ensure that the EVA in the photovoltaic module 8 The gas inside the packaging film is discharged, and the heating plate 2 is heated to melt the EVA packaging film in the photovoltaic module 8. Under this operation, the silicone plate 3 has no pressure on the photovoltaic module 8, and it is guaranteed to last for about 6 minutes; 11 Start filling gas (0.8~1 atmospheric pressure) into the upward cavity 41 and keep it for about 10 minutes. The angle between them is reduced to greater than or equal to 90 degrees and less than or equal to 108 degrees, so that the laminated photovoltaic module 8 can still ensure that the edges will not become thinner without setting a surrounding frame.

It can be seen from the above that the setting of the silica gel plate 3 in the present invention enables the laminator 100 of the present invention to laminate without setting a surrounding frame to obtain a photovoltaic module 8 that is as reliable as laminating with a surrounding frame, and is applicable to automation. Material and unloading, improve operation efficiency and save operation manpower.

A series of detailed descriptions listed above are only specific descriptions for the feasible embodiments of the present utility model, and they are not intended to limit the scope of protection of the present utility model. Embodiments or changes should be included within the protection scope of the present utility model.

Claims (4)

1. for the laminating machine of photovoltaic module, for photovoltaic module is carried out laminated into type, the hot plate that described laminating machine includes upper cover and upper cover is oppositely arranged；It is formed with to place the laminated resonator of photovoltaic module between described upper cover and hot plate；It is characterized in that: the silica gel plate that described laminating machine is additionally included under gas pressure photovoltaic module is pressed；Described silica gel plate is fixed on upper cover towards hot plate side, and thickness be more than or equal to 2 millimeters less than or equal to 3.2 millimeters, hardness be more than or equal to 30HA shore hardness less than or equal to 55HA shore hardness。

2. the laminating machine for photovoltaic module according to claim 1, it is characterized in that: silica gel plate has when lamination to apply pressure to a Part I at photovoltaic module top and lateral tilt applies pressure to the Part II of photovoltaic module sidepiece, when photovoltaic module is carried out lamination, the angle formed between described Part I and Part II is less than or equal to 108 degree be more than or equal to 90 degree。

3. the laminating machine for photovoltaic module according to claim 2, it is characterised in that: when photovoltaic module is carried out lamination, the distance between described Part I edge and described laminated resonator inside edge is more than 20 centimetres。

4. the laminating machine for photovoltaic module as claimed in any of claims 1 to 3, it is characterised in that: described upper cover has the pore connected with laminated resonator。