Laminating apparatus

Abstract

The utility model provides laminating equipment which comprises a buffer table, a laminating processing device and a preheating mechanism, the buffer table is used for buffering laminated pieces to be laminated, the laminating processing device is used for laminating the laminated pieces, the laminating processing device is arranged behind the buffer table, and the preheating mechanism is used for heating the buffer table. The buffer table is heated through the preheating mechanism, so that the to-be-laminated laminated piece can be preheated, and the temperature of the laminated piece is preheated until an adhesive film in the laminated piece is not molten. In this way, the heating time required by the laminated part in the laminating process can be shortened, and therefore the production efficiency of the laminating process can also be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaics, in particular to a lamination device. Background Art

[0002] Solar cells are devices that can convert solar energy into electrical energy. Because solar energy is an inexhaustible and clean energy, solar cells are also widely used as the core components of solar power generation equipment.

[0003] In order to meet complex working conditions, solar cells usually need to be further packaged to form photovoltaic modules. Photovoltaic modules are usually prepared by laminating packaging boards, adhesive films and solar cells. In the lamination process, the packaging boards, adhesive films and solar cells are stacked and then sent to the lamination chamber to be heated until the adhesive film melts, and then pressurized and cured. However, the process takes a long time, which leads to low production efficiency of the lamination process. Utility Model Content

[0004] Based on this, it is necessary to provide a lamination device to shorten the lamination time required for the lamination process, thereby improving the production efficiency of the lamination process.

[0005] According to some embodiments of the utility model, a lamination device is provided, which includes a buffer table, a lamination processing device and a preheating mechanism, wherein the buffer table is used to buffer laminated parts to be laminated, the lamination processing device is used to perform lamination processing on the laminated parts, the lamination processing device is arranged behind the buffer table, and the preheating mechanism is used to perform heating processing on the buffer table.

[0006] In some embodiments of the present invention, the preheating mechanism comprises a top heating element, and the top heating element is arranged above the cache table; and / or,

[0007] The preheating mechanism comprises a bottom heating element, and the bottom heating element is arranged below the cache table.

[0008] In some embodiments of the present invention, the top heating element can heat the cache table by at least one of thermal radiation and thermal convection.

[0009] In some embodiments of the utility model, the top heating element includes one or more of a heating lamp tube and a hot air blower, and the top heating element is spaced apart from the cache table, wherein the irradiation direction of the heating lamp tube is toward the top surface of the cache table, and the air outlet direction of the hot air blower is toward the top surface of the cache table.

[0010] In some embodiments of the present invention, the bottom heating element is disposed in contact with the bottom of the cache table, and the bottom heating element can heat the cache table by contact heat conduction.

[0011] In some embodiments of the present invention, the bottom heating element includes one or more of a heating plate and a heating rod, and the bottom heating element is attached to the bottom surface of the cache table.

[0012] In some embodiments of the present invention, the preheating mechanism can heat the laminate located on the cache table to 35°C~65°C.

[0013] In some embodiments of the utility model, the laminating processing device includes a hot melt chamber and a curing chamber, and the hot melt chamber and the curing chamber are sequentially arranged behind the cache table. The laminating equipment includes a first heating mechanism and a negative pressure mechanism arranged in the hot melt chamber, and the laminating equipment also includes a second heating mechanism and a pressure mechanism arranged in the curing chamber.

[0014] In some embodiments of the present invention, the first heating mechanism and the second heating mechanism both include a heating plate; and / or,

[0015] The negative pressure mechanism comprises an air extraction component; and / or,

[0016] The pressure applying mechanism includes an inflatable component.

[0017] In some embodiments of the present invention, the lamination processing device further comprises a cooling chamber, and the cooling chamber is arranged after the curing chamber.

[0018] In conventional technology, when laminating a laminate, the laminate is usually directly transported to a lamination processing device for heating and pressurizing for curing.

[0019] The laminating equipment of the utility model includes a buffer table, a laminating processing device and a preheating mechanism. The buffer table is used to buffer the laminated parts to be laminated, the laminating processing device is arranged behind the buffer table, and the preheating mechanism is used to heat the buffer table. The laminated parts are transported to the buffer table for temporary storage before entering the laminating processing device for laminating processing, and the temporarily stored laminated parts wait for the laminating processing device to perform laminating processing on the previous laminated parts, so there is no need to consume additional process time. By heating the buffer table with the preheating mechanism, the laminated parts to be laminated can be preheated, and the temperature of the laminated parts is preheated to a temperature at which the adhesive film therein has not yet melted, which can shorten the heating time required for the laminated parts during the laminating process, and thus the production efficiency of the laminating process can also be improved.

[0020] In some embodiments of the utility model, after actual testing, by preheating the laminate to 35°C~65°C on the buffer table, the process time of the laminate in the lamination processing device can be shortened by 20s~80s without substantially affecting the lamination quality, the utilization rate of the lamination processing device can be increased by about 7%, and the production capacity of the lamination processing device is also significantly improved accordingly. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a side view schematic diagram of the structure of a laminating device;

[0022] Figure 2 for Figure 1 A schematic diagram of a top view of a laminating device;

[0023] Figure 3 is a schematic diagram of the structure of a laminate;

[0024] Figure 4 for Figure 1 A schematic cross-sectional structure diagram of a hot melt chamber in a laminating device;

[0025] Figure 5 for Figure 1 Schematic diagram of the cross-sectional structure of the curing chamber in the laminating device.

[0026] The reference numerals and their meanings are as follows:

[0027] 110, cache table; 120, preheating mechanism; 121, top heating element; 122, bottom heating element; 200, lamination processing device; 210, hot melt chamber; 211, first heating mechanism; 212, negative pressure mechanism; 220, curing chamber; 221, second heating mechanism; 222, pressure mechanism; 230, cooling chamber; 300, laminate; 310, solar cell; 320, first adhesive film; 330, first packaging board; 340, second adhesive film; 350, second packaging board; 400, base. DETAILED DESCRIPTION

[0028] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively in combination with the embodiments and the effect diagrams. The embodiments provide preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0029] It should be noted that when an element is referred to as being "fixed" to another element, it may be directly fixed to the other element, or it may be fixed to the other element through an intermediate element. When an element is considered to be "connected" to another element, it may be directly connected to the other element, or there may be an intermediate element between the two elements. In addition, in the description of the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection, a detachable connection, or an integrated connection. For example, it may be a mechanical connection or an electrical connection. For example, it may be a direct connection, an indirect connection through an intermediate element, or the internal connection of the two elements. It should be understood that those skilled in the art can understand the specific meanings of the above terms according to the specific circumstances without causing ambiguity.

[0030] Unless otherwise specified, in the description of the present invention, terms indicating orientation or positional relationship, such as "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", and "outside", are based on the orientation or positional relationship shown in the drawings of the utility model. They are only for the convenience and simplification of the description of the content of the utility model and to help readers understand the description in conjunction with the drawings. They do not limit or imply a specific orientation that the device or element referred to must have, and therefore should not be understood as a limitation on the present invention.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by technicians in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the implementation of the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items. "Multiple" herein includes a combination of two or more than two items.

[0032] The utility model provides a laminating device, which comprises a buffer table, a laminating processing device and a preheating mechanism, wherein the buffer table is used for caching laminated parts to be laminated, the laminating processing device is used for laminating the laminated parts, the laminating processing device is arranged behind the buffer table, and the preheating mechanism is used for heating the buffer table.

[0033] In conventional technology, when laminating a laminate, the laminate is usually directly transported to a lamination processing device for heating and pressurizing for curing.

[0034] The laminating equipment of the utility model includes a buffer table, a laminating processing device and a preheating mechanism. The buffer table is used to buffer the laminated parts to be laminated, the laminating processing device is arranged behind the buffer table, and the preheating mechanism is used to heat the buffer table. The laminated parts are transported to the buffer table for temporary storage before entering the laminating processing device for laminating processing. The temporarily stored laminated parts wait for the laminating processing device to perform lamination processing on the previous laminated parts, so there is no need to consume additional process time. By heating the buffer table with the preheating mechanism, the laminated parts to be laminated can be preheated, and the temperature of the laminated parts is preheated to a temperature at which the adhesive film therein has not yet melted, which can shorten the heating time required for the laminated parts during the laminating process, and thus the production efficiency of the laminating process can also be improved.

[0035] Figure 1 It is a side view structural schematic diagram of a laminating device according to the utility model. Figure 2 for Figure 1 Schematic diagram of the top view of the lamination equipment. Figure 1 and Figure 2 As shown, the lamination equipment includes a buffer table 110, a lamination processing device 200 and a preheating mechanism 120. The buffer table 110 is used to buffer the laminated parts to be laminated, the lamination processing device 200 is used to perform lamination processing on the laminated parts, the lamination processing device 200 is arranged behind the buffer table 110, and the preheating mechanism 120 is used to heat the buffer table 110.

[0036] For ease of explanation, Figure 3 3 is a schematic diagram of the structure of a laminate 300 in the utility model. In some examples of this embodiment, the laminate 300 to be laminated may include a first packaging board 330, a first adhesive film 320, a solar cell 310, a second adhesive film 340 and a second packaging board 350, the solar cell is sandwiched between the first packaging board 330 and the second packaging board 350, and the first adhesive film 320 is arranged between the first packaging board 330 and the solar cell 310, and the second adhesive film 340 is arranged between the second packaging board 350 and the solar cell 310. When laminating, the first adhesive film 320 and the second adhesive film 340 are heated to melt and then solidified, so that the solar cell is sealed between the first packaging board 330 and the second packaging board 350.

[0037] In some examples of this embodiment, the preheating mechanism 120 can heat the laminate 300 located on the buffer station 110 to 35°C~65°C. For example, the preheating mechanism 120 can heat the laminate 300 to 35°C, 40°C, 45°C, 50°C, 55°C, 60°C, 65°C, or the preheating mechanism 120 can heat the laminate 300 to a temperature between any two of the above temperatures. In actual use, the laminate 300 can be heated to 35°C~65°C to prevent the laminate 300 from deteriorating before entering the lamination processing device 200, so as to ensure that the lamination quality of the laminate 300 is qualified.

[0038] Combination Figure 1 and Figure 2 As shown, in some examples of this embodiment, the preheating mechanism 120 includes a top heating element 121, and the top heating element 121 is disposed above the buffer stage 110. The top heating element 121 is used to heat the laminate 300 located above the buffer stage 110 from the top.

[0039] In some examples of this embodiment, the top heating element 121 can heat the buffer table 110 by at least one of thermal radiation and thermal convection. Wherein, heating the buffer table 110 by thermal radiation means that the top heating element 121 can emit electromagnetic waves toward the buffer table 110 so that the temperature of the buffer table 110 rises. Thermal convection means that the top heating element 121 can emit hot air toward the buffer table 110 so that the temperature of the buffer table 110 rises. Heating the buffer table 110 by thermal radiation and thermal convection can make room for the space above the buffer table 110, avoiding the influence of the top heating element 121 on the conveying process of the laminate 300. Wherein, the top heating element 121 can be arranged directly above or above the side of the buffer table 110.

[0040] In some examples of this embodiment, the top heating element 121 includes one or more of a heating lamp and a hot air blower, the irradiation direction of the heating lamp is toward the top surface of the buffer table 110, the air outlet direction of the hot air blower is toward the top surface of the buffer table 110, and the top heating element 121 is spaced apart from the buffer table 110. The heating lamp can be an infrared heating lamp, a halogen heating lamp, or a quartz heating lamp.

[0041] In some examples of this embodiment, the top heating element 121 can heat the laminate 300 located on the buffer stage 110 to 35°C to 65°C.

[0042] Reference Figure 1 As shown, in some examples of this embodiment, the preheating mechanism 120 includes a bottom heating element 122, which is disposed below the buffer stage 110. The bottom heating element 122 is used to heat the buffer stage 110 from the bottom, and further heat the laminate 300 located above the buffer stage 110.

[0043] In some examples of this embodiment, the bottom heating element 122 is arranged in contact with the bottom of the buffer table 110, and the bottom heating element 122 can heat the buffer table 110 by contact heat conduction. Among them, heating the buffer table 110 by contact heat conduction means that the bottom heating element 122 itself can generate heat and heat up, and transfer its own heat to the buffer table 110 by heat conduction. Heating the buffer table 110 by heat transfer from the bottom of the buffer table 110 can avoid the influence of the bottom heating element 122 on the transportation process of the laminate 300. Among them, the bottom heating element 122 can be arranged directly below or below the side of the buffer table 110.

[0044] In some examples of this embodiment, the bottom heating element 122 includes one or more of a heating plate and a heating rod, and the bottom heating element 122 is attached to the bottom surface of the buffering table 110. The heating plate may be an electric heating plate, and the heating rod may be an electric heating rod.

[0045] Further, refer to Figure 1 As shown, in some examples of this embodiment, the preheating mechanism 120 may include a top heating element 121 and a bottom heating element 122. By using the top heating element 121 and the bottom heating element 122 at the same time, the top and bottom ends of the laminate 300 can be heated at the same time, so that the laminate 300 is heated more evenly during the preheating process, and the time required to heat the entire laminate 300 to a preset preheating temperature is shortened, further improving production efficiency.

[0046] In the actual lamination process, the adhesive film of the laminate 300 is usually heated to melt and vacuumed to remove bubbles therein, so that the solar cell, the adhesive film and the laminate are more closely attached. Then the laminate 300 is kept heated and pressure is applied to crosslink and solidify the components in the adhesive film. In the conventional technology, the lamination process is usually completed by vacuuming the same chamber first and then inflating and pressurizing. However, the vacuuming and inflation processes in this method take a long time, and the work efficiency is relatively low.

[0047] Combination Figure 1 and Figure 2 As shown, in some examples of this embodiment, the lamination processing device 200 may include a hot melt chamber 210 and a curing chamber 220 , and the hot melt chamber 210 and the curing chamber 220 are sequentially arranged behind the buffer station 110 . Figure 4 for Figure 1 A schematic cross-sectional view of the hot melt chamber 210 in the laminating device, Figure 5 for Figure 1 Schematic diagram of the cross-sectional structure of the curing chamber 220 in the laminating device. Figure 4 and Figure 5As shown, the laminating device includes a first heating mechanism 211 and a negative pressure mechanism 212 disposed in a hot melt chamber 210 . In addition, the laminating device also includes a second heating mechanism 221 and a pressure mechanism 222 disposed in a curing chamber 220 .

[0048] Furthermore, combined with Figure 1 and Figure 2 As shown, in some examples of this embodiment, the lamination equipment may further include a base 400 , and the buffer table 110 and the lamination processing device 200 may both be disposed on the base 400 .

[0049] Reference Figure 4 As shown, the hot melt chamber 210 can be a closed chamber, and the first heating mechanism 211 in the hot melt chamber 210 is mainly used to heat the laminate 300 to be laminated, and the negative pressure mechanism 212 is used to evacuate the hot melt chamber 210 to form a negative pressure in the hot melt chamber 210. After the laminate 300 is transported to the hot melt chamber 210, the first heating mechanism 211 heats the laminate 300 to heat the first adhesive film and the second adhesive film 340 to a melting temperature, and at the same time, the negative pressure mechanism 212 evacuates the hot melt chamber 210 to exhaust the gas in the laminate 300, so that the contact between the solar cell, the adhesive film and the packaging board is more sufficient and tight.

[0050] Reference Figure 5 As shown, the curing chamber 220 can also be a closed chamber. The second heating mechanism 221 in the curing chamber 220 is mainly used to heat the laminate 300 to be laminated, and the pressure mechanism 222 is used to apply pressure to the laminate 300, so that the first adhesive film 320 and the second adhesive film 340 are denser after curing, thereby increasing the adhesion between them and the solar cell 310, the first packaging board 330 and the second packaging board 350.

[0051] In some examples of this embodiment, the first heating mechanism 211 includes a heating plate, which can be disposed in the hot melt chamber 210 and used to support the laminate 300. Further, the heating plate in the first heating mechanism 211 can heat the laminate 300 to above 140°C.

[0052] In some examples of this embodiment, the negative pressure mechanism 212 may include an exhaust component, and the exhaust component is used to exhaust the hot melt chamber 210 so that a negative pressure environment is formed inside the hot melt chamber 210 .

[0053] In some examples of this embodiment, the second heating mechanism 221 also includes a heating plate, which can be disposed in the curing chamber 220 and used to support the laminate 300. Further, the heating plate in the second heating mechanism 221 can heat the laminate 300 to above 140°C.

[0054] In some examples of this embodiment, the pressure mechanism 222 may include an inflatable component for inflating the curing chamber 220 to form a positive pressure environment inside the curing chamber 220. It is understood that the greater air pressure in the curing chamber 220 can apply pressure to the laminate 300.

[0055] Combination Figure 1 and Figure 2 As shown, in some examples of this embodiment, the lamination processing device 200 may further include a cooling chamber 230, which is disposed after the curing chamber 220. The cooling chamber 230 is used to receive the laminate 300 that has been cured in the curing chamber 220 and cool the laminate 300. In the cooling chamber 230, the laminate 300 may be cooled naturally by being left to stand, or the laminate 300 may be cooled by a cooling medium.

[0056] like Figure 1 The laminating apparatus shown can be used as follows.

[0057] First, the laminate 300 can be transported to the buffer station 110 by a conveyor belt, temporarily stored on the buffer station 110 and waiting for the previous laminate 300 to complete the hot melt treatment in the hot melt chamber 210. At this time, the top heating element 121 and the bottom heating element 122 in the preheating mechanism 120 can be started to preheat the laminate 300. During the preheating process, the laminate 300 can be heated to 35°C~65°C. The preheating process can be carried out during the temporary storage time of the laminate 300, so the preheating process does not need to consume additional time. It can be understood that the laminate 300 can be heated to 35°C~65°C during the temporary storage time by controlling the power and distance of the top heating element 121 and the bottom heating element 122.

[0058] After the previous laminate 300 completes the hot melt treatment, the laminate 300 temporarily stored on the buffer table 110 is transported to the hot melt chamber 210, heated by the first heating mechanism 211, and vacuumed by the negative pressure mechanism 212. During this process, the laminate 300 can be heated to above 140°C. At this time, the first adhesive film and the second adhesive film 340 are completely melted, and the pressure in the hot melt chamber 210 is reduced to below 100 Pa to completely remove the bubbles in the laminate 300.

[0059] After the hot melt treatment is completed, the laminate 300 is transported to the curing chamber 220, and the second heating mechanism 221 heats and keeps it warm, and the pressure mechanism 222 fills gas into the curing chamber 220 to increase the gas pressure in the curing chamber 220. In this process, the laminate 300 can be heated to above 140° C. and kept warm until the first adhesive film 320 and the second adhesive film 340 are completely cured.

[0060] After the curing process is completed, the laminate 300 is transported to the cooling chamber 230 to be naturally cooled to room temperature, and then can be subjected to subsequent inspection and unloading processes.

[0061] The laminating device of the utility model heats the buffer table 110 through the preheating mechanism 120, and can preheat the laminate 300 to be laminated on the buffer table 110, so that the temperature of the laminate 300 is preheated to a temperature at which the adhesive film therein has not yet melted. This can shorten the heating time required for the laminate 300 during the lamination process, and thus the production efficiency of the lamination process can also be improved. After actual testing, the laminate 300 is preheated to 35°C~65°C on the buffer table 110, and the time of the laminate 300 in the hot melt chamber 210 can be shortened by 20s~80s without substantially affecting the lamination quality. The utilization rate of the lamination processing device 200 can be increased by 7%, and the production capacity of the lamination processing device 200 is also significantly improved accordingly.

[0062] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0063] The above embodiments only express several implementation methods of the utility model, and the descriptions are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A laminating device, characterized in that: The invention comprises a buffer table (110), a lamination processing device (200) and a preheating mechanism (120); the buffer table (110) is used to buffer laminated parts (300) to be laminated; the lamination processing device (200) is used to perform lamination processing on the laminated parts (300); the lamination processing device (200) is arranged behind the buffer table (110); and the preheating mechanism (120) is used to perform heating processing on the buffer table (110).

2. The laminating device according to claim 1, characterized in that The preheating mechanism (120) comprises a top heating element (121), and the top heating element (121) is arranged above the cache table (110); and / or, The preheating mechanism (120) comprises a bottom heating element (122), and the bottom heating element (122) is arranged below the cache table (110).

3. The laminating device according to claim 2, characterized in that The top heating element (121) can heat the cache table (110) by at least one of heat radiation and heat convection.

4. The laminating device according to claim 3, characterized in that The top heating element (121) comprises one or more of a heating lamp and a hot air blower, and the top heating element (121) is spaced apart from the cache table (110), wherein the irradiation direction of the heating lamp is toward the top surface of the cache table (110), and the air outlet direction of the hot air blower is toward the top surface of the cache table (110).

5. The laminating device according to claim 2, characterized in that The bottom heating element (122) is arranged in contact with the bottom of the cache table (110), and the bottom heating element (122) can heat the cache table (110) by contact heat conduction.

6. The laminating device according to claim 5, characterized in that The bottom heating element (122) comprises one or more of a heating plate and a heating rod, and the bottom heating element (122) is attached to the bottom surface of the cache table (110).

7. The laminating device according to any one of claims 1 to 6, characterized in that: The preheating mechanism (120) is capable of heating the laminate (300) located on the cache table (110) to a temperature of 35°C to 65°C.

8. The laminating device according to any one of claims 1 to 6, characterized in that: The laminating processing device (200) comprises a hot melt chamber (210) and a curing chamber (220), wherein the hot melt chamber (210) and the curing chamber (220) are arranged in sequence behind the buffer table (110), the laminating equipment comprises a first heating mechanism (211) and a negative pressure mechanism (212) arranged in the hot melt chamber (210), and the laminating equipment further comprises a second heating mechanism (221) and a pressure mechanism (222) arranged in the curing chamber (220).

9. The laminating device according to claim 8, characterized in that The first heating mechanism (211) and the second heating mechanism (221) both comprise a heating plate; and / or, The negative pressure mechanism (212) comprises an air extraction component; and / or, The pressure applying mechanism (222) includes an inflatable component.

10. The laminating device according to claim 8, characterized in that The lamination processing device (200) further comprises a cooling chamber (230), wherein the cooling chamber (230) is arranged behind the curing chamber (220).

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