Laminating machine for photovoltaic module and heating bottom plate of laminating machine
By setting heating elements on the heating base plate to block cold air and heat the short side area, the problem of bubble defects in the lamination process of double glass modules is solved, and the lamination quality is improved.
Patent Information
- Application Number
- CN202520005952.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-02
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2035-01-02
AI Technical Summary
In the lamination process of existing photovoltaic module laminators, defects such as air bubbles are prone to occur at the short side of double-glass modules, especially at the head and tail positions along the module layout direction, resulting in product quality that does not meet user requirements.
First and second heating elements are installed on the heating base plate, located on both sides of the short side of the double glass module, respectively. They block the flow of cold air and heat the short side area, improve temperature uniformity, reduce heat loss, and ensure lamination quality.
It effectively reduces bubble defects during the lamination process of double-glass modules, improves product quality, and meets user needs.
Smart Images
Figure CN223714202U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of photovoltaic, in particular to a laminator for photovoltaic module and a heating bottom plate thereof. BACKGROUND
[0002] The laminator for photovoltaic module is one of the important equipment for packaging photovoltaic module, which is used for pressing the high-temperature materials such as packaging adhesive film, cell sheet and glass into a whole with certain rigidity under the condition of high temperature and vacuum. With the rapid development of photovoltaic industry, the photovoltaic module is currently mainly double-glass module, which is widely concerned due to its excellent weather resistance, power generation efficiency and low light decay characteristics. The structure of the double-glass module from front to back is front glass, upper packaging adhesive film, cell sheet, lower packaging adhesive film and back glass. In the laminating process, the laminator for photovoltaic module heats the double-glass module through the heating bottom plate, so that the upper and lower packaging adhesive films are melted, thereby firmly bonding the front glass, cell sheet and back glass, and packaging the double-glass module into a whole.
[0003] In the related art, in order to improve the production efficiency, in more and more laminators for photovoltaic module, multiple double-glass modules are placed on the heating bottom plate of the laminator in a row, and the width direction of each double-glass module is consistent with the arrangement direction, and the multiple double-glass modules are laminated synchronously. However, after each double-glass module is hot-pressed by the laminator, there are usually air bubbles and other defects at the short side of the double-glass module, especially the two double-glass modules at the head and tail along the arrangement direction of the double-glass module, the air bubbles at the short side are more obvious, which leads to that the product quality cannot meet the user's demand. CONTENT OF THE UTILITY MODEL
[0004] Therefore, it is necessary to overcome the defects of the prior art, and to provide a laminator for photovoltaic module and a heating bottom plate thereof, which can improve the laminating quality of the double-glass module.
[0005] A heating bottom plate of a laminator for photovoltaic module, the heating bottom plate comprises:
[0006] a heating bottom plate body, at least three placing areas are arranged in sequence on the heating bottom plate body, the placing areas are used for placing double-glass modules, the arrangement direction of the placing areas is the same as the width direction of the double-glass modules, and the two placing areas at the head and tail in the arrangement direction are first placing areas; and
[0007] a first heating member, the first heating member is arranged on the upper surface of the heating bottom plate body, and each first placing area is provided with a first heating member on each of the opposite sides in the length direction, and each first heating member is arranged corresponding to each short side of the double-glass module when the double-glass module is placed on the first placing area.
[0008] In one of the embodiments, all the placement areas between two of the first placement areas are second placement areas, and the heating base body further comprises second heating members arranged on the upper surface of the heating base body, each of the second placement areas is provided with a second heating member on each of the opposite sides along the length direction of the second placement area, and each of the second heating members is arranged corresponding to each of the short sides of the double-glass assembly when the double-glass assembly is placed on the second placement area.
[0009] In one of the embodiments, the first heating member is arranged as a heating rod, a heating wire, a heating strip, a heating rod or a heating block, the first heating member is arranged to extend along the direction parallel to the short side of the double-glass assembly, and the first heating member extends from one end to the other end of the short side of the double-glass assembly; and / or, the second heating member is arranged as a heating rod, a heating wire, a heating strip, a heating rod or a heating block, the second heating member is arranged to extend along the direction parallel to the short side of the double-glass assembly, and the second heating member extends from one end to the other end of the short side of the double-glass assembly.
[0010] In one of the embodiments, the first heating member is spaced apart from the double-glass assembly placed on the first placement area; and / or, the second heating member is spaced apart from the double-glass assembly placed on the second placement area.
[0011] In one of the embodiments, the distance S1 between the first heating member and the double-glass assembly placed on the first placement area is 5mm≤S1≤10mm; and / or, the distance S2 between the second heating member and the double-glass assembly placed on the second placement area is 5mm≤S2≤10mm.
[0012] In one of the embodiments, the distance h1 between the top surface of the first heating member and the upper surface of the heating base body is 4.5mm≤h1≤5.5mm; and / or, the distance h2 between the top surface of the second heating member and the upper surface of the heating base body is 4.5mm≤h2≤5.5mm.
[0013] In one of the embodiments, the heating base body is provided with a plurality of heating modules, and all the heating modules are arranged in an array on the heating base body.
[0014] A laminator for photovoltaic assembly, the laminator for photovoltaic assembly comprises the heating base of the laminator for photovoltaic assembly, further comprises a laminating frame and a pressing cover plate; the laminating frame is used for covering the upper surface of each double-glass assembly; the pressing cover plate is used for covering the periphery of the laminating frame and all the double-glass assemblies, the pressing cover plate can apply a pressing force to the laminating frame, and the laminating frame is used for transmitting the pressing force to the double-glass assembly below.
[0015] In one of the embodiments, the photovoltaic module laminating machine further comprises a controller and a lifting mechanism; the lifting mechanism is connected with the pressing cover plate, and is used to drive the lifting action of the pressing cover plate; the lifting mechanism and the first heating element are electrically connected with the controller, and the controller is used to control the lifting of the pressing cover plate by the lifting mechanism, and is also used to control the start or power increase of the first heating element.
[0016] In one of the embodiments, the photovoltaic module laminating machine further comprises a controller and a plurality of temperature sensors; each of the temperature sensors is arranged at a different position on the upper surface of the heating base plate body, and is used to sense the temperature at the different position on the upper surface of the heating base plate body; the temperature sensors, the first heating element and the heating base plate body are electrically connected with the controller, and the controller is used to control the operation of the first heating element and the heating base plate according to the temperature sensed by the temperature sensors.
[0017] The photovoltaic module laminating machine and the heating base plate thereof described above, since the first heating element is arranged on the upper surface of the heating base plate body, and each of the first placing areas is arranged with one first heating element on each of the opposite sides along the length direction, and the first heating element is arranged adjacent to the short side of the double-glass module, so that during the opening and closing of the cover, on one hand, the first heating element can block the inflow of cold air to the short side of the double-glass module in the first placing area, effectively reducing the heat loss at the short side of the double-glass module in the first placing area; on the other hand, each of the first heating elements can be heated to match the state of the double-glass module, and improve the temperature at the short side of the double-glass module in the first placing area, thereby improving the temperature uniformity. In this way, the quality defects such as bubbles generated during the lamination of the double-glass module can be reduced, that is, the lamination quality of the double-glass module can be improved to meet the user's requirements. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 FIG. 1 is a structural view of the heating base plate of the photovoltaic module laminating machine according to an embodiment of the present application.
[0019] Figure 2 FIG. 2 is a structural view of the heating base plate of the photovoltaic module laminating machine according to another embodiment of the present application.
[0020] Figure 3 FIG. 3 is a structural view of the photovoltaic module laminating machine according to an embodiment of the present application.
[0021] Figure 4 FIG. 4 is a structural view of the heating base plate body of the photovoltaic module laminating machine shown in FIG. 3. Figure 3
[0022] 10, heating base plate; 11, heating base plate body; 111, first placement area; 112, second placement area; 12, first heating piece; 13, second heating piece; 14, heating module; 20, laminating frame; 30, pressing cover plate; 31, elastic plate; 40, double glass assembly; 50, lifting mechanism. DETAILED DESCRIPTION
[0023] In order to make the above objectives, features and advantages of the present application more apparent, specific embodiments of the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in a number of ways other than those described herein without departing from the spirit of the present application. It is therefore intended that the present application not be limited to the embodiments disclosed herein for purposes of craftsmanship.
[0024] As described in the background, in the related art, each double glass assembly after being hot-pressed by a laminating machine has a short side with a bubble defect and the like, especially the two double glass assemblies at the head and tail along the arrangement direction of the double glass assembly, and the bubble at the short side is more obvious. The inventor has found that the reason for this problem is that during the opening and closing of the pressing cover plate of the laminating machine for photovoltaic assemblies, cold air outside the laminating machine for photovoltaic assemblies enters the cavity inside the laminating machine for photovoltaic assemblies, and the relative two sides of the heating base plate along the length direction of the double glass assembly are affected by the entering cold air. Especially, the temperature of the relative two sides of the heating base plate at the head and tail along the arrangement direction of the double glass assembly is greatly affected, resulting in uneven temperature, thereby causing the double glass assembly to have a bubble defect and the like.
[0025] Based on the above reasons, the present application provides a laminating machine for photovoltaic assemblies and a heating base plate thereof, which can improve the laminating quality of the double glass assembly.
[0026] Referring to Figures 1 to 3 , Figure 1 and Figure 2 respectively show the structure of the heating base plate 10 of the laminating machine for photovoltaic assemblies in two different embodiments, Figure 3The structure diagram of the laminator for photovoltaic module is shown. The laminator for photovoltaic module provided by the embodiment of the application comprises a heating bottom plate 10. The heating bottom plate 10 specifically comprises a heating bottom plate body 11 and a first heating member 12. The heating bottom plate body 11 is provided with at least three placing areas arranged in sequence. The placing areas are used for placing double-glass modules 40, the arrangement direction of the placing areas is the same as the width direction of the double-glass modules 40, and the two placing areas at the head and tail in the arrangement direction are both first placing areas 111. The first heating member 12 is arranged on the upper surface of the heating bottom plate body 11, and each first placing area 111 is provided with a first heating member 12 on the opposite sides in the length direction of the first placing area 111. When the double-glass module 40 is placed on the first placing area 111, each first heating member 12 is arranged corresponding to each short side of the double-glass module 40.
[0027] It should be noted that the width direction of the double-glass module 40 in the embodiment refers to the extension direction of the short side of the double-glass module 40. In addition, the length direction of the first placing area 111 refers to the extension direction of the long side of the double-glass module 40.
[0028] Optionally, the shape of the placing area is adapted to the shape of the double-glass module 40, for example, the placing area is provided with a positioning mark or a groove, etc., so that each double-glass module 40 can be accurately placed in the placing area.
[0029] In addition, referring to Figure 3 , the laminator for photovoltaic module further comprises a laminating frame 20 and a pressing cover plate 30. After each double-glass module 40 is placed in each placing area, the laminating frame 20 is arranged on the upper surface of each double-glass module 40, and the projection of the laminating frame 20 on the upper surface of the heating bottom plate body 11 completely covers the projection of the double-glass module 40 on the upper surface of the heating bottom plate body 11. The pressing cover plate 30 is used for covering the periphery of the laminating frame 20 and all the double-glass modules 40. During the laminating process, the pressing cover plate 30 can apply a pressing force to the laminating frame 20, the laminating frame 20 transmits the pressing force to the double-glass module 40 below, so as to prevent the edge of the double-glass module 40 from being raised, make the laminating of the double-glass module 40 more stable and reliable, and effectively prevent the double-glass module 40 from having water splash bubble defects after laminating.
[0030] Among them, the laminating frame 20 can be one, covering the upper surfaces of all the double-glass modules 40, or can be multiple, each laminating frame 20 corresponding to the upper surface of each double-glass module 40, and the projection of each laminating frame 20 on the upper surface of the heating bottom plate body 11 completely covers the projection of each double-glass module 40 on the upper surface of the heating bottom plate body 11. Optionally, the laminating frame 20 is made of a hard material resistant to high temperature, for example, a metal material.
[0031] The photovoltaic module laminator and the heating bottom plate 10 thereof have the following advantages. The first heating member 12 is arranged on the upper surface of the heating bottom plate body 11, and each first placement area 111 has a first heating member 12 arranged on each of the opposite sides in the length direction of the first placement area 111. The first heating member 12 is arranged adjacent to the short side of the double-glass module 40. During the opening and closing of the cover, on one hand, the first heating member 12 can block the cold air from flowing into the short side of the double-glass module 40 in the first placement area 111, effectively reducing the heat loss at the short side of the double-glass module 40 in the first placement area 111. On the other hand, each first heating member 12 can be heated to match the state of the double-glass module 40, improve the temperature at the short side of the double-glass module 40 in the first placement area 111, and thus improve the temperature uniformity. In this way, the quality defects such as bubbles generated during the lamination of the double-glass module 40 can be reduced, that is, the lamination quality of the double-glass module 40 can be improved to meet the user's requirements.
[0032] In the related art, the short side of the double-glass module 40 in the second placement area 112 is also affected by the cold air during the opening and closing of the cover of the laminator. The degree of influence of the cold air on the double-glass module 40 in the second placement area 112 is weaker than that on the double-glass module 40 in the first placement area 111. However, the short side of the double-glass module 40 in the second placement area 112 will also have the bubble defect after lamination. Based on the foregoing embodiment, please refer to Figure 2 With Figure 3 The heating bottom plate 10 of the photovoltaic module laminator further comprises a second heating member 13. The second heating member 13 is arranged on the upper surface of the heating bottom plate body 11, and each second placement area 112 has a second heating member 13 arranged on each of the opposite sides in the length direction of the second placement area 112. When the double-glass module 40 is placed in the second placement area 112, each second heating member 13 is arranged corresponding to each short side of the double-glass module 40. In this way, similar to the function of the first heating member 12, on one hand, the second heating member 13 can block the cold air from flowing into the short side of the double-glass module 40 in the second placement area 112, effectively reducing the heat loss at the short side of the double-glass module 40 in the second placement area 112. On the other hand, each second heating member 13 can be heated to match the state of the double-glass module 40, improve the temperature at the short side of the double-glass module 40 in the second placement area 112, and thus improve the temperature uniformity. In this way, the quality defects such as bubbles generated during the lamination of the double-glass module 40 can be further reduced, and the lamination quality of the double-glass module 40 can be further improved.
[0033] In some embodiments, the first heating element 12 and the second heating element 13 are each independently provided, and are not limited to being provided as heating rods, heating wires, heating strips, heating bars or heating blocks, etc. The specific configuration can be flexibly adjusted and set according to actual needs, and is not limited here.
[0034] In some embodiments, such as Figure 1 As shown, the first heating element 12 extends parallel to the short side of the double-glass module 40, from one end to the other. Specifically, the length L1 of the first heating element 12 is the same as the length of the short side of the double-glass module 40, which is also the same as the width W of the short side of the double-glass module 40. The opposite ends of the first heating element 12 are aligned with the opposite ends of the short side of the double-glass module 40, thus blocking cold air and providing heating at various positions along the short side of the double-glass module 40, effectively improving quality defects such as bubbles after lamination. Furthermore, the first heating element 12 is not excessively long, thus avoiding increased volume and material costs.
[0035] Similarly, as Figure 2 As shown, the second heating element 13 extends parallel to the short side of the double-glass module 40, from one end to the other. Specifically, the length L2 of the second heating element 13 is the same as the length of the short side of the double-glass module 40, which is also the same as the width W of the double-glass module 40. The opposite ends of the second heating element 13 are aligned with the opposite ends of the short side of the double-glass module 40, thus blocking cold air and providing heating at various positions along the short side of the double-glass module 40, effectively improving quality defects such as bubbles after lamination. Furthermore, the second heating element 13 is not excessively long, thus avoiding increased volume and material costs.
[0036] In some embodiments, the first heating element 12 is spaced apart from the double-glass assembly 40 of the first placement area 111. Thus, the first heating element 12 does not interfere with the placement or removal of the double-glass assembly 40 on the heating base plate body 11.
[0037] Specifically, the distance S1 between the first heating member 12 and the double-glass assembly 40 in the first placement area 111 includes but is not limited to 5mm≤S1≤10mm. In this way, the distance S1 is appropriate. On the one hand, the distance S1 is not too small, so that the double-glass assembly 40 on the heating base body 11 is not interfered with during the pick-and-place operation, that is, the distance S1 is large, so that the double-glass assembly 40 on the heating base body 11 can be normally picked and placed, which is convenient for operation. On the other hand, the distance S1 is not too large, so that the cold air blocking effect of the first heating member 12 on the short side position of the double-glass assembly 40 is weakened, and the heating effect is weakened, that is, the distance S1 is small, so that the cold air blocking effect on the short side position of the double-glass assembly 40 is good, and the heating effect is not weakened.
[0038] Similarly, similar to the arrangement of the first heating member 12, the second heating member 13 and the double-glass assembly 40 in the second placement area 112 are provided with a distance. Specifically, the distance S1 between the second heating member 13 and the double-glass assembly 40 in the second placement area 112 includes but is not limited to 5mm≤S1≤10mm.
[0039] In some embodiments, the compression cover plate 30 is provided with an elastic plate 31, which includes but is not limited to a silica gel plate, and the elastic plate 31 is provided with a cavity that can be inflated and deflated. The elastic plate 31 is arranged above the laminating frame 20. When the cavity of the elastic plate 31 is inflated, the elastic plate 31 expands outward, and the elastic plate 31 generates an elastic extrusion force acting on the laminating frame 20, so that the laminating frame 20 performs a laminating operation on the double-glass assembly 40 below. When the laminating operation of the double-glass assembly 40 is completed, the cavity of the elastic plate 31 is deflated.
[0040] When the top surface of the first heating member 12 and / or the top surface of the second heating member 13 is higher than the top surface of the laminating frame 20, the laminating frame 20 will not be completely attached to the elastic plate 31, and a gap will be generated between the laminating frame 20 and the elastic plate 31, so that the laminating work of the double-glass assembly 40 cannot be normally completed.
[0041] In order to avoid the first heating member 12 and the second heating member 13 from contacting the elastic plate 31 and affecting the laminating operation of the double-glass assembly 40, in the present embodiment, the distance between the top surface of the first heating member 12 and the upper surface of the heating base body 11 is h1, the distance between the top surface of the second heating member 13 and the upper surface of the heating base body 11 is h2, and the distance between the top surface of the laminating frame 20 and the upper surface of the heating base body 11 is h3, h1≤h3, h2≤h3.
[0042] Generally, h3≥ 5.5 mm, and h3 is specifically, for example, 5.5 mm, 6 mm, or 7 mm, and the like. In this embodiment, the distance h1 between the top surface of the first heating member 12 and the upper surface of the heating base plate body 11 is 4.5 mm≤ h1≤ 5.5 mm, and the distance h2 between the top surface of the second heating member 13 and the upper surface of the heating plate is 4.5 mm≤ h2≤ 5.5 mm. In this way, it can be ensured that the top surface of the first heating member 12 and the top surface of the second heating member 13 are not higher than the top surface of the laminating frame 20, so as to avoid affecting the laminating operation of the double glass assembly 40. In addition, the distance h1 and the distance h2 are not too small, so as to weaken the cold air blocking of the short side position of the double glass assembly 40 and weaken the heating effect.
[0043] It should be noted that, in order to improve the processing quality of each double glass assembly 40 and prevent the double glass assembly 40 from generating a bubble defect after laminating, optionally, the heating base plate 10 uniformly generates heat on the upper surface when the heating base plate body 11 is working, so that each double glass assembly 40 on the upper surface of the heating base plate 10 is uniformly heated, thereby improving the processing quality of the double glass assembly 40.
[0044] Please refer to Figure 4 In one embodiment, the heating base plate body 11 is provided with a plurality of heating modules 14. All the heating modules 14 are arranged in an array on the heating base plate body 11, so that the upper surface of the heating base plate 10 uniformly generates heat. In this way, when all the heating modules 14 are working, the upper surface of the heating base plate body 11 uniformly generates heat, so that each double glass assembly 40 on the heating base plate body 11 is uniformly heated, thereby improving the quality of the double glass assembly 40 after laminating.
[0045] Optionally, the heating module 14 adopts, for example, a rectangular array form of m rows and n columns, where m is, for example, 3 to 5, and n is, for example, 18 to 22.
[0046] As shown in an arrangement example Figure 4 The heating module 14 adopts a rectangular array form of 4X20. The distance between two adjacent heating modules 14 in the transverse direction or in the longitudinal direction is set to 10 cm to 20 cm. In addition, please refer to Figure 1 or Figure 2 The number of placement areas on the heating base plate body 11 is 9, that is, the number of double glass assemblies 40 placed is 9.
[0047] Please refer to Figure 3In one embodiment, the photovoltaic module laminator further comprises a controller and a lifting mechanism 50. The lifting mechanism 50 is connected with the pressing cover plate 30, and is configured to drive the pressing cover plate 30 to move up and down. The lifting mechanism 50 and the first heating element 12 are electrically connected with the controller. The controller is configured to control the lifting mechanism 50 to move the pressing cover plate 30 up, and is further configured to control the first heating element 12 to start working or increase the working power. In this way, when the controller controls the lifting mechanism 50 to move the pressing cover plate 30 up, the pressing cover plate 30 is opened, and the controller simultaneously controls the first heating element 12 to start working or increase the working power, so as to reduce the adverse effect of the cold air entering the cavity after the pressing cover plate 30 is opened on the short side of the double-glass module 40 in the first placement area 111. Conversely, when the controller controls the lifting mechanism 50 to move the pressing cover plate 30 down, the pressing cover plate 30 is in sealing cooperation with the upper surface of the heating bottom plate body 11, so that the pressing cover plate 30 and the upper surface of the heating bottom plate body 11 can enclose a sealed cavity, effectively preventing external gas from entering the cavity, and simultaneously performing vacuumizing treatment on the cavity, so that the double-glass module 40 can be laminated in a high-temperature vacuum environment, which is conducive to improving the processing quality of the double-glass module 40.
[0048] In some embodiments, the controller is further electrically connected with the second heating element 13. The controller is configured to control the lifting mechanism 50 to move the pressing cover plate 30 up, and is further configured to control the second heating element 13 to start working or increase the working power.
[0049] Optionally, the controller includes but is not limited to a PLC controller.
[0050] Optionally, the lifting mechanism 50 includes but is not limited to a pneumatic cylinder, an oil cylinder, a hydraulic cylinder, a motor lead screw, a motor cam, or various forms of power mechanisms that can realize the function of lifting the pressing cover plate 30.
[0051] In one embodiment, the photovoltaic module laminator further comprises a controller and a plurality of temperature sensors. Each temperature sensor is configured to sense the temperature of a plurality of different positions on the upper surface of the heating bottom plate body 11. Optionally, each temperature sensor is arranged at a plurality of different positions on the upper surface of the heating bottom plate body 11. The temperature sensor, the first heating element 12, and the heating bottom plate body 11 are electrically connected with the controller. The controller is configured to control the first heating element 12 and the heating bottom plate 10 to work according to the temperature sensed by the temperature sensor. Specifically, when the temperature sensed by the temperature sensor is lower or higher than the temperature of other areas, the controller increases or decreases the working power of the first heating element 12 and the heating bottom plate body 11 in the area where the temperature sensor is located according to the temperature signal of the temperature sensor, so as to make the temperature of each area on the upper surface of the heating bottom plate body 11 relatively uniform.
[0052] In the description of the application, it should be understood that, if there are these terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the application.
[0053] In addition, if there are these terms "first", "second", these terms are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include at least one of the features. In the description of the application, if the term "multiple" appears, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise explicitly specified.
[0054] In this application, unless otherwise explicitly specified and limited, if there are terms such as "mounting", "connecting", "connecting", "fixing" and the like, these terms should be broadly understood. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.
[0055] In this application, unless otherwise explicitly specified and limited, if there are similar descriptions such as "first feature on or under second feature", the meaning can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" of the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" of the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.
[0056] It is to be noted that when an element such as a layer, film, or region is referred to as being "on" another element, it can be directly on the other element or intervening elements can also be present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present. It will be understood that, when an element or layer is referred to as being "connected" to or "coupled" to another element or layer, it can be directly connected or coupled or intervening elements can be present. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.
[0057] Various technical features of the above-described embodiments can each be combined in any combination, as can be appreciated by one of ordinary skill in the art. For the sake of brevity, descriptions of all possible combinations are not described, however, all such combinations are contemplated and are within the scope of the present specification.
[0058] The above-described embodiments are merely illustrative for the present application and do not limit the scope of the present application. It should be understood by those skilled in the art that various modifications and improvements can be made to the embodiments without departing from the spirit of the present application. Accordingly, the scope of the present application should be determined by the appended claims rather than the above description.
Claims
1. A heating base plate (10) for a photovoltaic module laminator, characterized in that, The heating base plate (10) includes: A heating base plate body (11) is provided with at least three placement areas arranged sequentially. The placement areas are used to place double-glass modules (40). The arrangement direction of the placement areas is the same as the width direction of the double-glass modules (40). The two placement areas located at the head and tail of the arrangement direction are both first placement areas (111). The first heating element (12) is disposed on the upper surface of the heating base plate body (11). Each first placement area (111) has a first heating element (12) disposed on opposite sides along its length direction. When the double glass component (40) is placed on the first placement area (111), each first heating element (12) is arranged corresponding to each short side of the double glass component (40).
2. The heating base plate (10) of the photovoltaic module laminator according to claim 1, characterized in that, All the placement areas located between the two first placement areas (111) are second placement areas (112). The heating base plate body (11) also includes a second heating element (13). The second heating element (13) is disposed on the upper surface of the heating base plate body (11). Each second placement area (112) has a second heating element (13) on each of its opposite sides along its length direction. When the double glass component (40) is placed on the second placement area (112), each second heating element (13) is arranged corresponding to each short side of the double glass component (40).
3. The heating base plate (10) of the photovoltaic module laminator according to claim 2, characterized in that, The first heating element (12) is configured as a heating rod, heating wire, heating strip, heating rod or heating block, and the first heating element (12) extends along a direction parallel to the short side of the double glass assembly (40), and the first heating element (12) extends from one end of the short side of the double glass assembly (40) to the other end; and / or, the second heating element (13) is configured as a heating rod, heating wire, heating strip, heating rod or heating block, and the second heating element (13) extends along a direction parallel to the short side of the double glass assembly (40), and the second heating element (13) extends from one end of the short side of the double glass assembly (40) to the other end.
4. The heating base plate (10) of the photovoltaic module laminator according to claim 2, characterized in that, The first heating element (12) is spaced apart from the double-glass assembly (40) placed in the first placement area (111); and / or, the second heating element (13) is spaced apart from the double-glass assembly (40) placed in the second placement area (112).
5. The heating base plate (10) of the photovoltaic module laminator according to claim 4, characterized in that, The distance S1 between the first heating element (12) and the double-glass assembly (40) placed in the first placement area (111) is 5mm≤S1≤10mm; and / or, the distance S2 between the second heating element (13) and the double-glass assembly (40) placed in the second placement area (112) is 5mm≤S2≤10mm.
6. The heating base plate (10) of the photovoltaic module laminator according to claim 2, characterized in that, The distance h1 between the top surface of the first heating element (12) and the upper surface of the heating base plate body (11) is 4.5mm≤h1≤5.5mm; and / or, the distance h2 between the top surface of the second heating element (13) and the upper surface of the heating base plate body (11) is 4.5mm≤h2≤5.5mm.
7. The heating base plate (10) of the photovoltaic module laminator according to any one of claims 1 to 6, characterized in that, The heating base plate body (11) is provided with multiple heating modules (14); all the heating modules (14) are arranged in an array on the heating base plate body (11).
8. A laminator for photovoltaic modules, characterized in that, The photovoltaic module laminator includes a heating base plate (10) as described in any one of claims 1 to 7, and further includes a lamination frame (20) and a pressing cover plate (30); the lamination frame (20) is used to cover the upper surface of each of the double-glass modules (40); the pressing cover plate (30) is used to cover the periphery of the lamination frame (20) and all the double-glass modules (40), the pressing cover plate (30) can apply a pressing force to the lamination frame (20), and the lamination frame (20) is used to transmit the pressing force to the double-glass modules (40) below it.
9. The laminator for photovoltaic modules according to claim 8, characterized in that, The photovoltaic module laminator also includes a controller and a lifting mechanism (50); the lifting mechanism (50) is connected to the pressing cover plate (30), and the lifting mechanism (50) is used to drive the pressing cover plate (30) to lift; the lifting mechanism (50) and the first heating element (12) are both electrically connected to the controller, the controller is used to control the lifting mechanism (50) to lift the pressing cover plate (30), and the controller is also used to control the first heating element (12) to turn on or increase its working power.
10. The laminator for photovoltaic modules according to claim 8, characterized in that, The photovoltaic module laminator also includes a controller and multiple temperature sensors. Each of the temperature sensors is arranged at multiple different positions on the upper surface of the heating base plate body (11). Each of the temperature sensors is used to sense the temperature at multiple different positions on the upper surface of the heating base plate body (11). The temperature sensors, the first heating element (12), and the heating base plate body (11) are all electrically connected to the controller. The controller is used to control the first heating element (12) and the heating base plate (10) to work according to the temperature sensed by the temperature sensors.