CN216389331U

CN216389331U - Photovoltaic module packaging device

Info

Publication number: CN216389331U
Application number: CN202123022036.4U
Authority: CN
Inventors: 杨庆; 王鹏; 陈良水; 穆成伟
Original assignee: Huansheng New Energy Jiangsu Co ltd
Current assignee: Huansheng New Energy Jiangsu Co ltd
Priority date: 2021-12-03
Filing date: 2021-12-03
Publication date: 2022-04-26
Anticipated expiration: 2031-12-03

Abstract

The utility model provides a photovoltaic module packaging device, comprising: hot plate and lamination subassembly, divide the region on the hot plate to be provided with two at least warm areas of temperature difference, the lamination subassembly set up in the top of hot plate for encapsulation, lamination and sealed battery pack. The utility model has the advantages that the temperature is heated in a subarea way according to the position of the component in the cavity; the requirements that the heating temperature of the temperature areas of the heating plates positioned in the center of the battery assembly is reduced and the heating temperature of the temperature areas of the heating plates positioned at the periphery of the battery assembly is increased are met; the device has simple structure, low processing cost and convenient maintenance, and effectively improves the yield of the lamination packaging process of the assembly; the uniformity of the crosslinking degree of the assembly can be improved, so that the crosslinking degree of each position of the assembly is more uniform; the crosslinking degree range of the assembly adhesive film is better controlled, and the reliability of the assembly is improved; reduce the adverse effects of later yellowing, delamination and the like.

Description

Photovoltaic module packaging device

Technical Field

The utility model belongs to the field of solar laminated photovoltaic, and particularly relates to a photovoltaic module packaging device.

Background

The photovoltaic module, also called a solar panel, is a core part in a solar power generation system and is also the most important part in the solar power generation system. The photovoltaic module is formed by stacking a battery piece, tempered glass, a packaging material and the like in a specified sequence and laminating. The photovoltaic module can be formed by laminating a single-glass component or a double-glass component through a laminating machine.

In the traditional laminating process, the difference of the cross-linking degrees of the four corners of the assembly and the center of the assembly can reach more than 5 percent, the cross-linking degree of the edge of the assembly is low, and the cross-linking degree of the center is high; the reliability of the assembly is affected by too high or too low crosslinking degree, the crosslinking degree is too high, the adhesive film hardness is high, the risk of hidden cracking and breaking in the lamination process of the assembly is high, and yellowing, aging, delamination and the like easily occur at the later stage; low degree of crosslinking, poor later reliability of the assembly, high power attenuation and easy delamination. Traditional temperature control, integral control intracavity temperature, the high temperature, the subassembly middle part melts soon, and at the feeding vacuum-pumping stage not, the cross-linking just begins to melt at the middle part glued membrane, very easily causes badly such as bubble, fragment. The temperature is too low, the whole cross-linking degree of the assembly is low, and particularly the positions around the assembly cause poor reliability failure in the later period.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a photovoltaic module packaging device, which is particularly suitable for the packaging process of a solar energy laminated photovoltaic module for improving the crosslinking degree.

In order to solve the technical problems, the utility model adopts the technical scheme that: a photovoltaic module packaging apparatus, comprising: hot plate and lamination subassembly, divide the region on the hot plate to be provided with two at least warm areas of temperature difference, the lamination subassembly set up in the top of hot plate for encapsulation, lamination and sealed battery pack.

Further, the lamination assemblies are arranged laterally side by side above the heating plate.

Furthermore, three temperature areas are arranged on the heating plate in different areas.

Further, the temperature zone comprises: the laminated component comprises a first temperature zone, a second temperature zone and a third temperature zone, wherein the first temperature zone, the second temperature zone and the third temperature zone are sequentially arranged in a direction perpendicular to the direction of the laminated component.

Furthermore, two temperature areas are arranged on the heating plate in different areas.

Further, the temperature zone comprises: the temperature control device comprises a fourth temperature zone and a fifth temperature zone, wherein the fourth temperature zone and the fifth temperature zone are annularly arranged, and the fifth temperature zone is arranged outside the fourth temperature zone.

Further, the laminate assembly comprises: glass, adhesive film, battery, solder strip, adhesive film and back plate.

Further, the lamination assembly is a composite structure of the glass, the adhesive film, the battery, the solder strip, the adhesive film and the back plate which are sequentially arranged.

Further, the laminate assembly comprises: glass, adhesive film, battery, solder strip, adhesive film and glass.

Further, the lamination assembly is a composite structure of the glass, the adhesive film, the battery, the solder strip, the adhesive film and the glass which are sequentially arranged.

Due to the adoption of the technical scheme, the method has the following advantages:

zone temperature heating is performed depending on the position of the assembly within the chamber. The requirements that the heating temperature of the temperature areas of the heating plates positioned in the center of the battery assembly is reduced and the heating temperature of the temperature areas of the heating plates positioned at the periphery of the battery assembly is increased are met;

the device has simple structure, low processing cost and convenient maintenance, and effectively improves the yield of the lamination packaging process of the assembly; the uniformity of the crosslinking degree of the assembly can be improved, so that the crosslinking degree of each position of the assembly is more uniform; the crosslinking degree range of the assembly adhesive film is better controlled, and the reliability of the assembly is improved; reduce the adverse conditions of later yellowing, delamination and the like.

Drawings

FIG. 1 is a schematic overall structure of one embodiment of the present invention;

fig. 2 is a schematic view of the overall structure of another embodiment of the present invention.

In the figure:

1. heating plate 2, lamination assembly 3, first temperature zone

4. A second temperature zone 5, a third temperature zone 6, and a fourth temperature zone

7. Fifth temperature zone

Detailed Description

The utility model is further illustrated by the following examples and figures:

in one embodiment of the present invention, a photovoltaic module packaging apparatus includes: heating plate 1 and lamination subassembly 2, division area is provided with two at least temperature areas that the temperature is different on the heating plate 1, and lamination subassembly 2 sets up in the top of heating plate 1, carries out the in-process of lamination and encapsulation at battery pack, and the lamination subassembly transversely sets up side by side in the top of heating plate 1, mainly used encapsulation, lamination and sealed battery pack.

In this embodiment, the direction in which the lamination unit 2 is arranged side by side perpendicular to the longitudinal direction of the heating plate 1 is defined as a transverse direction, and the direction perpendicular to the lamination unit 2 is defined as a longitudinal direction.

As shown in fig. 1, in the present embodiment, three temperature zones are provided on the heating plate 1 in different areas, and the three temperature zones are respectively: a first temperature zone 3, a second temperature zone 4 and a third temperature zone 5, wherein the first temperature zone 3, the second temperature zone 4 and the third temperature zone 5 are sequentially arranged along the longitudinal direction of the vertical laminated assembly 2, i.e. as shown in fig. 1, the first temperature zone 3, the second temperature zone 4 and the third temperature zone 5 are sequentially arranged from left to right; the first temperature zone 3, the second temperature zone 4 and the third temperature zone 5 of the heating area can be designed according to the placing position of the battery assembly or the actual temperature difference value of the battery assembly. And the applicability of the three temperature areas is wider, the temperature areas are controlled finely, and the cost is relatively lower.

Zone temperature heating is performed depending on the position of the assembly within the lamination chamber. Because battery pack gets into the intracavity back, because reasons such as expend with heat and contract with cold, battery pack four corners perk, central authorities 'laminating hot plate 1, so can lower the warm area heating temperature who is located the hot plate of battery pack central authorities, the heating temperature who is located the warm area of battery pack hot plate all around increases, and the each position degree of crosslinking of even subassembly to promote battery pack lamination packaging process yield and better control battery pack glued membrane degree of crosslinking scope, promote battery pack's reliability.

In this embodiment, the laminated assembly 2 is a composite structure of glass, an adhesive film, a battery, a solder strip, an adhesive film, and a back plate, which are sequentially disposed. As an alternative, the laminate assembly 2 may be a composite structure of glass, glue film, battery, solder strip, glue film and glass arranged in sequence.

The battery assembly is subjected to lamination packaging through the arrangement of the lamination assembly 2, and the battery assembly is protected; the bottom of the specific laminated assembly is laid with glass, a layer of packaging adhesive film is laid on the glass, then the battery plates or the battery strings are connected according to a circuit, the circuit connection is carried out through a welding strip, a layer of packaging adhesive film is placed, and the glass or the back plate is laid on the packaging adhesive film; the working steps are carried out on a heating plate 1 of a temperature division zone in a laminating machine ballast, and the laminated assembly 2 is bonded together in a laminating cavity through a series of processes of vacuumizing, heating, pressurizing and the like, so that the photovoltaic assembly is packaged. After lamination, the battery assembly can be trimmed and framed, and then a wire box for leading out current is mounted.

In another embodiment of the present invention, a photovoltaic module packaging apparatus includes: heating plate 1 and lamination subassembly 2, division area is provided with two at least temperature areas that the temperature is different on the heating plate 1, and lamination subassembly 2 sets up in the top of heating plate 1, carries out the in-process of lamination and encapsulation at battery pack, and the lamination subassembly transversely sets up side by side in the top of heating plate 1, mainly used encapsulation, lamination and sealed battery pack.

In this embodiment, the direction of the lamination unit 2 arranged side by side perpendicular to the longitudinal direction of the heating plate 1 is defined as a transverse direction, and a longitudinal direction perpendicular to the direction of the lamination unit 2 is defined as a longitudinal direction.

As shown in fig. 2, in the present embodiment, two temperature zones are provided on the heating plate 1 in different areas, and the two temperature zones are respectively: a fourth temperature zone 6 and a fifth temperature zone 7, wherein the fourth temperature zone 6 and the fifth temperature zone 7 are annularly arranged in a 'loop' shape, and as shown in fig. 2, the fifth temperature zone 7 is annularly arranged outside the fourth temperature zone 6; specifically, the fourth temperature zone 6 and the fifth temperature zone 7 of the heating area can be designed according to the placement position of the battery assembly or the actual temperature difference value of the battery assembly. The two temperature zones have smaller application range compared with the three temperature zones, but the cost is lower, and the temperature control is not more precise than the temperature control of more temperature zones.

Zone temperature heating is performed depending on the position of the assembly within the chamber. Because battery pack gets into the intracavity back, because reasons such as expend with heat and contract with cold, battery pack four corners perk, central authorities 'laminating hot plate 1, so can lower the warm area heating temperature who is located the hot plate of battery pack central authorities, the heating temperature who is located the warm area of battery pack hot plate all around increases, and the each position degree of crosslinking of even subassembly to promote battery pack lamination packaging process yield and better control battery pack glued membrane degree of crosslinking scope, promote battery pack's reliability.

The working process of the two embodiments of the utility model is as follows:

before the lamination packaging, a calibration procedure needs to be performed, specifically: need use the instrument of third party to calibrate actual temperature once, the accessible arranges the thermocouple on the subassembly and carries out actual measurement and calibrate, guarantees that each position temperature of subassembly is unanimous, and after follow-up calibration is accomplished, can separate one to two months or half a year and carry out once calibration, also can regard as daily control, in time calibrates.

Transversely lay lamination subassembly 2 in proper order on hot plate 1 specifically includes: laying a layer of glass, laying a layer of packaging adhesive film on the glass, connecting the battery panel or the battery string according to a circuit, connecting the circuit through a welding strip, placing a layer of packaging adhesive film, and laying the glass or the back plate on the packaging adhesive film.

The battery is encapsulated by applying a force to laminate assembly 2 by applying a temperature to draw air out of laminate assembly 2. After lamination, the battery assembly can be trimmed and framed, and then a wire box for leading out current is mounted.

The temperature on both sides of the heating plate 1 can be adjusted slightly higher and the temperature in the middle can be adjusted lower during the lamination and encapsulation process. Set up different warm areas through the subregion, compare in hot plate before, can realize accurate calibration, can satisfy central heating temperature simultaneously and transfer down, the demand that heating temperature transferred all around, make each position cross-linking degree of subassembly more even, promote the subassembly reliability.

The embodiments of the present invention have been described in detail, but the description is only for the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.

Claims

1. A photovoltaic module encapsulation device, comprising: hot plate and lamination subassembly, divide the region on the hot plate to be provided with two at least warm areas of temperature difference, the lamination subassembly set up in the top of hot plate for encapsulation, lamination and sealed battery pack.

2. The photovoltaic module packaging apparatus of claim 1, wherein: the lamination assemblies are arranged laterally side by side above the heating plate.

3. The photovoltaic module packaging apparatus of claim 2, wherein: the heating plate is provided with three temperature zones in different areas.

4. The photovoltaic module packaging apparatus of claim 3, wherein: the temperature zone comprises: the laminated component comprises a first temperature zone, a second temperature zone and a third temperature zone, wherein the first temperature zone, the second temperature zone and the third temperature zone are sequentially arranged in a direction perpendicular to the direction of the laminated component.

5. A photovoltaic module packaging unit according to claim 1 or 2, characterized in that: two temperature areas are arranged on the heating plate in different areas.

6. The photovoltaic module packaging apparatus of claim 5, wherein: the temperature zone comprises: the temperature control device comprises a fourth temperature zone and a fifth temperature zone, wherein the fourth temperature zone and the fifth temperature zone are annularly arranged, and the fifth temperature zone is arranged outside the fourth temperature zone.

7. The photovoltaic module packaging apparatus of claim 1, wherein: the laminate assembly includes: glass, adhesive film, battery, solder strip, adhesive film and back plate.

8. The photovoltaic module packaging apparatus of claim 7, wherein: the laminating assembly is a composite structure of the glass, the adhesive film, the battery, the welding strip, the adhesive film and the back plate which are sequentially arranged.

9. The photovoltaic module packaging apparatus of claim 1, wherein: the laminate assembly includes: glass, adhesive film, battery, solder strip, adhesive film and glass.

10. The photovoltaic module packaging apparatus of claim 9, wherein: the laminating assembly is a composite structure of the glass, the adhesive film, the battery, the welding strip, the adhesive film and the glass which are sequentially arranged.