CN213905381U

CN213905381U - Heating plate of photovoltaic module laminating machine

Info

Publication number: CN213905381U
Application number: CN202022860475.1U
Authority: CN
Inventors: 李跃; 肖阳; 张博; 张宝龙; 佟双环; 李巍巍; 庞宁
Original assignee: Tianjin Yingli New Energy Resource Co Ltd
Current assignee: Tianjin Yingli New Energy Resource Co Ltd
Priority date: 2020-12-03
Filing date: 2020-12-03
Publication date: 2021-08-06
Anticipated expiration: 2030-12-03

Abstract

The invention provides a heating plate of a photovoltaic module laminating machine, which consists of a plane plate, strip plates and edge supporting plates, wherein the strip plates are arranged on the plane plate in parallel, and the edge supporting plates are arranged on the strip plates at two ends in parallel. Through this scheme, appear the marginal perk and lead to marginal excessive pressure and be heated uneven problem when can avoiding photovoltaic module lamination.

Description

Heating plate of photovoltaic module laminating machine

Technical Field

The invention relates to a photovoltaic module laminating machine, in particular to a heating plate of a laminating machine.

Background

Lamination is a critical link in the manufacturing process of photovoltaic modules and directly affects the intrinsic quality and lifetime of the module. The existing photovoltaic module laminating machine has the advantages that a module is sealed in a cavity of the existing photovoltaic module laminating machine, the module is heated, air in a lower cavity is vacuumized, the upper cavity keeps pressure, and the flexible lamination positioned on the upper cavity is pressed on the module, so that the laminating process is completed through high temperature and high pressure, and the cross-linking of a packaging adhesive film is realized. The hot plate that is located the subassembly below is pure plane, there is the heater inside, the lamination in-process, photovoltaic module glass molecule is heated the inflation and is produced the internal stress, because edge and inside release channel are different, edge glass can release the internal stress outside the subassembly, and middle glass's internal stress can only be to central zone and release all around, lead to glass will produce deformation, make photovoltaic module's four corners perk, thereby border position lamination pressure is great, other zones then pressure is little relatively, simultaneously because photovoltaic module does not have the support all around, lead to photovoltaic module edge and laminated cloth contact position pressure can further increase. Therefore, the pressure and temperature uniformity of the photovoltaic module can be different, the cross-linking degree of the packaging material can be affected, and the long-term weather resistance and aging resistance of the photovoltaic module can be affected.

Therefore, there is a need to develop a new type of heating plate for a laminating machine, which can solve the problems existing in the lamination production process of the existing photovoltaic module.

Disclosure of Invention

In view of the above, the present invention provides a heating plate for a photovoltaic module laminator, to solve the problems in the prior art, and the specific scheme includes the following steps:

a heating plate of a photovoltaic component laminating machine is composed of a plane plate 10, strip plates 20 and edge supporting plates 30, wherein a plurality of strip plates 20 are arranged on the plane plate 10 in parallel, and the edge supporting plates 30 are arranged on the strip plates 20 at two ends in parallel.

Specifically, the number of the strip-shaped plates 20 is at least 4.

Specifically, the height H2 of the edge support plate 30 is less than the thickness H30-1mm of the laminated photovoltaic module 40.

Specifically, the edge support plate 30 height H2 is greater than the thickness H30-1mm of the laminated photovoltaic module 40.

Specifically, the distance D2 between the inner side surface of the edge support plate 30 and the side surface of the strip plate 20 is 10-400 mm.

Specifically, the height H1 of the strip-shaped board 20 is 3-50 mm.

Specifically, the width W of the strip 20 is 10 to 400 mm.

Specifically, the planar plate 10 has planar plate heaters 11 uniformly distributed therein.

Specifically, the strip plate 20 has a strip plate heater 21 therein.

Specifically, the flat plate heater 11 and the strip plate heater 21 can be controlled separately.

The utility model provides a photovoltaic module laminator hot plate can avoid photovoltaic module when the lamination because the internal stress leads to the edge to warp for the pressurized is heated more evenly.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a perspective view of a laminator heating plate;

FIG. 2 is a side cross-sectional view of the laminator in operation;

fig. 3 is an enlarged view at a.

Wherein: 10. the flat panel 11, the flat panel heater 20, the strip panel 21, the strip panel heater 30, the edge support plate 40, the photovoltaic module 50 and the laminated cloth.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the methods described are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. The specific implementation mode of the invention is as follows:

when the photovoltaic module 40 is laminated, the heating plate at the lower part of the photovoltaic module 40 in the laminating machine provides support and heat, and the laminated cloth 50 at the upper part applies pressure to the photovoltaic module 40 under the influence of the air pressure at the upper part, thereby completing the laminating process.

The heating plate of the present invention is composed of a lower plane plate 10, a strip plate 20 disposed thereon, and an edge support plate 30 disposed above the strip plate. The plane plate 10 is a horizontal plane, the strip-shaped plates 20 are strip-shaped structures, a plurality of strip-shaped plates 20 are arranged on the plane plate 10 in parallel, the edge support plates 30 are arranged on the strip-shaped plates 20 at two ends in pairs in parallel, and the distance D2 between the inner side surface of the edge support plate 30 and the side surface of the strip-shaped plate 20 is close to the inner side surface.

Specifically, the number of the strip-shaped plates 20 is at least 4, support is provided below the photovoltaic module 40, and the number of the strip-shaped plates 20 is adjusted according to the size of the photovoltaic module 40. When the size of the photovoltaic module 40 is larger, 5 or more strip-shaped plates 20 can be selected, so that the lower support is more balanced.

In operation of the laminator, the laminated photovoltaic module 40 is transferred to the strip 20 between the two edge support plates 30 and adjacent to the edge support plates 30, and the edges of the photovoltaic module 40 are lapped on the strip 20 to provide upward support for the edges of the photovoltaic module 40. During lamination, the laminated cloth 50 presses the photovoltaic assembly under the upper pressure, the glass of the photovoltaic assembly 40 is heated, the internal stress is increased, the photovoltaic assembly 40 located at the position D tends to tilt due to unbalanced internal stress, at the moment, the two strip-shaped plates located at the position M play a role of a fulcrum and are matched with the laminated cloth 50 above the assembly, the photovoltaic assembly 40 is prevented from tilting through a lever effect, and the photovoltaic assembly 40 at the edge is attached to the position D2. In addition, due to the existence of the edge support plate 30, the maximum stress point is transferred from the edge of the photovoltaic module 40 to the edge K of the edge support plate 30, so that the condition of overlarge edge pressure of the photovoltaic module 40 is avoided, the overall stress of the photovoltaic module 40 is relatively balanced, and the distance from a lower heat source is the same and the heating is more uniform due to the fact that the photovoltaic module is not deformed.

Specifically, the height H2 of the edge support plate 30 is less than or greater than the thickness H30-1mm of the photovoltaic module 40. In the case where H2 is less than H3, the device ensures that the photovoltaic module 40 is sufficiently stressed and edge overpressure does not occur when laminating a single glass module, and in the case where H2 is greater than H3, prevents edge overpressure of a dual glass module and bubble generation or delamination when cold shrinking occurs after lamination when laminating a dual glass module. The specific parameter selection can be specifically determined according to different materials and different customer requirements.

Specifically, D2 ranged from 5-400 mm. By adjusting the overlapping distance between the edge of the photovoltaic module 40 and the strip plate 20, the pressure intensity of the edge of the photovoltaic module 40 can be indirectly controlled.

Specifically, the height H1 of the strip 20 is 3-50mm, the width W is 10-400mm, and when the required laminating process temperature of the photovoltaic module 40 is higher or the time length is increased, the narrower strip 20 is selected.

Specifically, the planar plate 10 has the planar plate heaters 11 therein, and the planar plate heaters 11 are uniformly distributed in the planar plate 10 to provide a high temperature environment required for lamination, and provide heat to the photovoltaic module 40 through heat radiation. The flat plate heater 11 may be resistance heating or heating by heating liquid in a heat transfer pipe.

Specifically, since the strip plate 20 contacts the photovoltaic module 40, the heating of the contact position is affected, and therefore, the strip plate heater 21 is also disposed in the strip plate 20. Since the thickness H1 of the strip plate 20 is small, the strip plate heater 21 can select a heating wire.

Specifically, the flat plate heater 11 and the strip plate heater 21 can be independently controlled, and the temperature of each can be controlled to ensure that all parts of the photovoltaic module 40 are heated uniformly.

Specifically, since the strip plate 20 is in direct contact with the photovoltaic module 40 to form heat conduction, the set temperature of the strip plate heater 21 needs to be lower than that of the flat plate heater 11. In practice, the temperature of each position of the photovoltaic module can be tested through the multi-head thermocouple, so that the temperatures of the two heaters can be adjusted according to the temperature difference.

While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A heating plate of a photovoltaic module laminating machine is composed of a plane plate (10), strip plates (20) and edge supporting plates (30), and is characterized in that a plurality of strip plates (20) are arranged on the plane plate (10) in parallel, and the edge supporting plates (30) are arranged on the strip plates (20) at two ends in parallel.

2. The heating plate of the photovoltaic module laminator according to claim 1, wherein: the number of the strip-shaped plates (20) is at least 4.

3. The heating plate of the photovoltaic module laminator according to claim 2, wherein: the edge support plate (30) height H2 is less than the thickness H30-1mm of the laminated photovoltaic module (40).

4. The heating plate of the photovoltaic module laminator according to claim 2, wherein: the edge support plate (30) low level H2 is greater than the thickness H30-1mm of the laminated photovoltaic module (40).

5. The photovoltaic module laminator heating plate of any of claims 3 or 4, wherein: the distance D2 between the side surface of the edge support plate (30) close to the inner side and the side surface of the strip plate (20) ranges from 10 mm to 400 mm.

6. The heating plate of a photovoltaic module laminator according to claim 5, wherein: the height H1 of the strip-shaped board (20) is 3-50 mm.

7. The heating plate of a photovoltaic module laminator according to claim 6, wherein: the width W of the strip-shaped plate (20) is 10-400 mm.

8. The heating plate of a photovoltaic module laminator according to claim 7, wherein: and the plane plate heaters (11) are uniformly distributed in the plane plate (10).

9. The heating plate of a photovoltaic module laminator according to claim 8, wherein: and a strip plate heater (21) is arranged in the strip plate (20).

10. The heating plate of a photovoltaic module laminator according to claim 9, wherein: the plane plate heater (11) and the strip plate heater (21) can independently control the temperature.