Laminating equipment and production line of photovoltaic module

Abstract

The embodiment of the utility model relates to the photovoltaic field, and provides a photovoltaic module laminating device and production line, and the photovoltaic module laminating device comprises a bearing part which is provided with a bearing surface used for bearing a to-be-laminated part; the laminating assembly is arranged above the bearing part, and an extrusion part of the laminating assembly is movably arranged so as to move to an extrusion position abutting against the to-be-laminated part or a first avoiding position avoiding the to-be-laminated part; and the infrared light source assembly is arranged below the bearing part, and an irradiation part of the infrared light source assembly is used for emitting infrared light and faces the bearing surface so as to irradiate the to-be-laminated part. The laminating equipment provided by the embodiment of the utility model at least can improve the power of the photovoltaic module.

Description

Technical Field

[0001] This application relates to the photovoltaic field, and in particular to a lamination equipment and production line for photovoltaic modules. Background Technology

[0002] Currently, in existing photovoltaic module manufacturing processes, lamination is a crucial step in combining materials such as solar cells, EVA film, and backsheet to form a photovoltaic module. During this process, the performance of the solar cells and the power output of the module are affected by a variety of factors.

[0003] However, even in high-quality manufacturing environments, it's difficult to completely avoid minor damage to solar cells during processing, such as cracks and scratches. While these micro-damages may have little impact on a single cell, the cumulative effect of damage when hundreds of cells are assembled into a photovoltaic module can significantly affect the overall power output. Current technologies typically employ electro-injection technology, applied after lamination, to enhance the passivation effect of the solar cells. However, this method has limitations. Firstly, electro-injection technology can only improve the surface condition of the cells to a certain extent, with limited ability to repair damage to the internal structure. Secondly, the control and distribution of current during electro-injection directly affect the final power of the module, but precise control over each cell is difficult to achieve, especially under large-scale production conditions. Therefore, simply using electro-injection technology to enhance the power output of photovoltaic modules has limited effect. Utility Model Content

[0004] This application provides a lamination equipment and production line for photovoltaic modules, which at least helps to improve the power of photovoltaic modules.

[0005] According to some embodiments of this application, one aspect of this application provides a lamination apparatus for photovoltaic modules, comprising:

[0006] The carrier has a bearing surface for bearing the laminate to be laminated;

[0007] A laminating assembly is disposed above a carrier, and the extrusion section of the laminating assembly is movably disposed to move to an extrusion position that abuts against the laminating component or a first avoidance position that avoids the laminating component.

[0008] An infrared light source assembly is located below the carrier. The irradiation part of the infrared light source assembly is used to emit infrared light and is positioned towards the carrier surface to irradiate the laminate to be laminated.

[0009] In some embodiments, at least a portion of the carrier is made of a transparent material, and the irradiation portion is disposed opposite to at least a portion of the carrier; or,

[0010] The carrier is provided with a light-transmitting opening extending through the thickness of the carrier, and the irradiation part is positioned opposite the light-transmitting opening; or,

[0011] The carrier is provided with a clearance opening that extends through the thickness direction of the carrier. The laminating equipment also includes a shielding member that is movably disposed at the clearance opening so that it can be moved to a position where the shielding member covers the light-blocking position of the clearance opening or a position where the shielding member and the clearance opening avoid each other.

[0012] In some embodiments, the irradiation part is an LED lamp; or, the irradiation part is an electric heating wire.

[0013] In some embodiments, the irradiation unit includes a main body and a plurality of light source elements, wherein:

[0014] The light source is a point light source, and multiple light sources are arranged in an array on one side of the main body near the bearing surface; or,

[0015] The light source is a strip light source, and multiple light sources are arranged at intervals along the length of the bearing surface on the side of the main body closest to the bearing surface; or,

[0016] The light source is a planar light source, with multiple light sources arranged at intervals on one side of the main body near the bearing surface.

[0017] In some embodiments, the lamination assembly includes:

[0018] The housing component forms a lamination cavity, and the extrusion part is disposed on the housing component and located within the lamination cavity; the housing component is vertically and vertically disposed so as to move to a sealing position where the housing component abuts against the bearing surface or a second clearance position where the housing component avoids the bearing component;

[0019] When the housing component is in the sealed position, the bearing surface and the housing component together form a closed cavity.

[0020] In some embodiments, the wavelength of the infrared light emitted by the irradiation unit is greater than or equal to 800 nm and less than or equal to 1200 nm; and / or,

[0021] The intensity of the infrared light emitted by the irradiation unit is less than 5 kW / m. 2 ; and / or,

[0022] The lamination equipment also includes a temperature sensing element, the sensing end of which is disposed on or facing the bearing surface, and the sensing end of the temperature sensing element is used to detect the maximum temperature on the bearing surface; and / or,

[0023] The laminating equipment also includes a light intensity detection device. The detection end of the light intensity detection device is located on the side of the bearing surface close to the infrared light source assembly. The detection end of the light intensity detection device is used to detect the light intensity of the infrared light emitted by the irradiation part.

[0024] In some embodiments, the laminating apparatus further includes:

[0025] A cooling component is located on one side of the laminating component; the cooling component includes a cooling channel and a cooling fan, the air outlet of the cooling channel is oriented towards the support component; the cooling fan is located inside the cooling channel and is used to drive the air inside the cooling channel to flow towards the air outlet;

[0026] The lamination equipment also includes a moving component, with a carrier mounted on the moving end of the moving component. The moving end of the moving component is movably mounted to move the carrier to a lamination position where the carrier is positioned opposite the lamination component or a cooling position where the carrier is positioned opposite the air outlet.

[0027] In some embodiments, the bearing surface extends along a first preset direction; the infrared light source assembly includes a driving member, and the irradiation portion is disposed on the driving end of the driving member; wherein:

[0028] The driving end of the driving component is movably disposed along a first preset direction; and / or,

[0029] The driving end of the driving component is movably disposed along a second preset direction, and the second preset direction is disposed at a preset angle to the first preset direction; and / or,

[0030] The driving end of the driving component is movably disposed along the direction from the carrier to the laminating assembly.

[0031] In some embodiments, the infrared light source assembly includes:

[0032] A first angle adjusting member, wherein the adjusting end of the first angle adjusting member is rotatably provided, and an irradiation part is provided on the adjusting end of the first angle adjusting member;

[0033] A second angle adjusting member and a reflector are provided. The adjusting end of the second angle adjusting member is rotatably disposed. The reflector has a reflective surface for reflecting light and is disposed on the adjusting end of the second angle adjusting member.

[0034] According to some embodiments of this application, another aspect of this application provides a photovoltaic module production line, including: the laminating equipment provided above.

[0035] The technical solution provided in this application has at least the following advantages:

[0036] Compared to traditional lamination equipment, this invention adds an infrared irradiation function. This feature further enhances the passivation level of photovoltaic cells and repairs minor damage, thereby improving the power output of photovoltaic modules. According to relevant experimental tests, the power output of photovoltaic modules irradiated by the infrared light source component provided in this embodiment is increased by approximately 1W. Compared to traditional electro-injection technology, the infrared photothermal treatment provided in this embodiment is more compact and efficient in its process flow. Electro-injection requires separate equipment and additional time, while the infrared light source component can be directly integrated into the lamination equipment without adding extra steps, significantly shortening the waiting time between lamination and power enhancement treatment, and improving the efficiency and capacity of the production line. Furthermore, the photovoltaic modules receiving infrared irradiation at high temperatures after lamination enhances the light injection effect. The cells at high temperatures receiving infrared irradiation better promote the repair of internal defects, resulting in better passivation. The synergistic effect of these two factors maximizes the power enhancement potential. Therefore, this invention solves the technical problem of insufficient power output in existing photovoltaic modules. Attached Figure Description

[0037] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Unless otherwise stated, the drawings in the accompanying drawings do not constitute a limitation on scale. In order to more clearly illustrate the technical solutions in the embodiments of this application or in the conventional art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0038] Figure 1 This is a schematic diagram of a photovoltaic module lamination device according to an embodiment of the present invention.

[0039] The above figures include the following reference numerals:

[0040] 1. Bearing component; 11. Bearing surface; 2. Lamination assembly; 21. Housing component; 211. Lamination cavity; 22. Extrusion section; 3. Infrared light source assembly; 4. Sealed cavity; 5. Moving assembly; 6. Component to be laminated. Detailed Implementation

[0041] As can be seen from the background technology, existing photovoltaic modules suffer from insufficient power.

[0042] This application provides a lamination equipment and production line for photovoltaic modules to solve the problem of insufficient power in existing photovoltaic modules.

[0043] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0044] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0045] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three cases: A exists, A and B exist simultaneously, and B exists. In addition, the character " / " in this document generally indicates that the related objects before and after it have an "or" relationship.

[0046] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces).

[0047] In the description of the embodiments of this application, the technical terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0048] In the description of the embodiments of this application, unless otherwise expressly specified and limited, the technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0049] In the accompanying drawings corresponding to the embodiments of this application, the thickness and area of ​​the layers are enlarged for better understanding and ease of description. When describing a component (such as a layer, film, region, or substrate) on or on the surface of another component, the component may be "directly" located on the surface of the other component, or there may be a third component between the two components. Conversely, when describing a component on the surface of another component, or when another component is formed or disposed on the surface of a component, it indicates that there is no third component between the two components. Furthermore, when describing a component as being "generally" formed on another component, it means that the component is not formed on the entire surface (or front surface) of the other component, nor is it formed on a portion of the edge of the entire surface.

[0050] In the description of the embodiments of this application, when a component "includes" another component, other components are not excluded unless otherwise stated, and other components may be further included. Furthermore, when a component such as a layer, film, region, or plate is referred to as being "on / located" on another component, it can be "directly on" the other component (i.e., located on the surface of the other component with no other components between them), or it can have another component present in between. Moreover, when a component such as a layer, film, region, or plate is "directly located" on another component, or when a component such as a layer, film, region, or plate is located on the surface of another component, it indicates that no other components are located in between.

[0051] The terminology used in the description of the various embodiments herein is for the purpose of describing particular embodiments only and is not intended to be limiting. As used in the description of the various embodiments and the appended claims, the term "part" is also intended to include the plural form unless the context clearly indicates otherwise. Components include layers, films, regions, or plates, etc.

[0052] The embodiments of this application will now be described in detail with reference to the accompanying drawings. However, those skilled in the art will understand that many technical details have been provided in the embodiments of this application to facilitate a better understanding of the application. However, the technical solutions claimed in this application can be implemented even without these technical details and various variations and modifications based on the following embodiments.

[0053] like Figure 1As shown, one embodiment of this utility model provides a photovoltaic module lamination device, which includes a carrier 1, a lamination assembly 2, and an infrared light source assembly 3. The carrier 1 has a bearing surface 11 for bearing the component to be laminated 6. The lamination assembly 2 is disposed above the carrier 1, and the pressing portion 22 of the lamination assembly 2 is movably disposed to move to a pressing position abutting against the component to be laminated 6 or a first avoidance position avoiding the component to be laminated 6. The infrared light source assembly 3 is disposed below the carrier 1, and the irradiation portion of the infrared light source assembly 3 emits infrared light and is disposed towards the bearing surface 11 to irradiate the component to be laminated 6.

[0054] The photovoltaic module lamination equipment provided in one embodiment of this utility model, compared with traditional lamination equipment, adds an infrared irradiation function. This setting can further stimulate the passivation level of photovoltaic cells and repair minor damage, thereby improving the power of photovoltaic modules. According to relevant experimental test results, the power of photovoltaic modules irradiated by the infrared light source component 3 provided in this embodiment is increased by about 1W. Compared with traditional electrical injection technology, the infrared photothermal treatment provided in this embodiment is also more compact and efficient in terms of process flow. Electrical injection requires separate equipment and additional time, while the infrared light source component 3 can be directly integrated into the lamination equipment without adding additional steps, greatly shortening the waiting time between lamination and power enhancement treatment, and improving the efficiency and capacity of the production line. In addition, the photovoltaic module receiving infrared light irradiation at a high temperature after lamination can enhance the light injection effect. After the cells at high temperature receive infrared light irradiation, they can better promote the repair of internal defects, thereby obtaining a better passivation effect. The two work together to maximize the power enhancement potential. Therefore, the photovoltaic module lamination equipment provided in this embodiment can solve the technical problem of insufficient photovoltaic module power in the prior art.

[0055] Specifically, in order to better support the component 6 to be laminated and to achieve a better lamination effect, the bearing surface 11 is a plane.

[0056] In one embodiment, the extrusion section 22 is an extrusion plate driven by a hydraulic cylinder. The extrusion plate is made of a material that is resistant to high temperatures and has good thermal conductivity, ensuring that it can maintain stability and precision under high-temperature lamination environment.

[0057] In one embodiment, the extrusion section 22 is an extrusion plate driven by a pneumatic servo system. The extrusion plate controlled by the pneumatic servo system has a fast response speed and more flexible pressure control.

[0058] In one embodiment, the extrusion section 22 is a multi-segment adjustable pressure extrusion structure, which can dynamically adjust the extrusion force according to the thickness and hardness of different component materials to adapt to different lamination requirements. This structure can improve the versatility of the equipment and production flexibility.

[0059] In one embodiment, the extrusion section 22 is a flexible extrusion strip, such as silicone rubber, which can conform to the minor unevenness of the component surface during the lamination process and provide a more uniform pressure distribution.

[0060] Specifically, the lamination materials for photovoltaic modules typically include solar cells, EVA film (ethylene-vinyl acetate copolymer), and a backsheet. These materials need to be precisely placed on the support 1 before lamination. During the lamination operation of the extrusion section 22, uniform pressure is applied to the laminate 6. This pressure causes the EVA film to flow fully in a softened state, filling the gaps between the solar cells and the backsheet, achieving a tight physical bond and chemical cross-linking.

[0061] In one embodiment, at least a portion of the carrier 1 is made of a transparent material, and the irradiation part is disposed opposite to at least a portion of the carrier 1. This arrangement, with at least a portion of the carrier 1 made of a transparent material and disposed opposite to the irradiation part, allows the infrared light source to directly penetrate at least a portion of the carrier 1 and accurately irradiate the photovoltaic module on the carrier surface 11. This design significantly improves the efficiency and accuracy of light injection because the light does not need to detour or reflect, acting directly on the target area, reducing energy loss and the possibility of uneven irradiation. The selection of the transparent material needs to consider its high-temperature resistance and optical transmittance to ensure efficient light injection without affecting the lamination process. Specifically, the transparent material can be quartz glass or borosilicate glass.

[0062] Specifically, the support component 1 is a transparent glass plate. In this way, the entire support component 1 is made of transparent material, which can better ensure that the photovoltaic module receives the infrared light source, and has greater flexibility in adapting to photovoltaic modules of different sizes. No matter how the photovoltaic module is placed, it can be illuminated by the infrared light source component 3.

[0063] In one embodiment, the carrier 1 is provided with a light-transmitting port extending through the thickness of the carrier 1, and the irradiation part is disposed opposite to the light-transmitting port. With this structural arrangement, the light-transmitting port further optimizes the light irradiation path, allowing the infrared light emitted by the irradiation part to penetrate the component more concentratedly and efficiently. This avoids scattering and absorption that may occur when light propagates on a large area carrier surface 11, ensuring the depth and uniformity of light injection, thereby improving the power and stability of the component.

[0064] In one embodiment, the carrier 1 is provided with a clearance opening extending through its thickness direction. The laminating equipment also includes a shielding member, which is movably disposed at the clearance opening to move to either a light-blocking position where the shielding member covers the clearance opening or a light-transmitting position where the shielding member and the clearance opening are mutually asymmetric. With this structural arrangement, by providing a clearance opening on the carrier 1 and equipping it with a movable shielding member, the laminating equipment can flexibly switch between the lamination and light injection stages. During the lamination stage, the shielding member moves to cover the clearance opening, preventing external light and dust from interfering with the lamination process and ensuring lamination quality. During the light injection stage, the shielding member moves to a position asymmetric with the clearance opening, allowing infrared light to directly illuminate the components through the clearance opening. This design not only simplifies the equipment structure but also improves production efficiency because the movement of the shielding member can be synchronized with other automated operations of the laminator without additional manual intervention, reducing production costs while ensuring process continuity and high product quality.

[0065] In one embodiment, the irradiation unit is an LED lamp. With this structural arrangement, LED lamps offer significant advantages in energy consumption compared to traditional light sources. They convert electrical energy into light energy more efficiently, thus consuming less energy for the same brightness, reducing heat loss during photoelectric conversion, and improving the overall energy efficiency of the system. Furthermore, the emission wavelength, intensity, and angle of the LED lamp can be precisely controlled through circuit design, which is particularly important during the light injection process. This ensures that the light source illuminates the photovoltaic module in a concentrated and uniform manner, improving the stability and consistency of module power enhancement. In addition, LED lamps have the characteristic of instantaneous switching, enabling the light injection process to start immediately shortly after the lamination process is completed, reducing waiting time and accelerating the production cycle.

[0066] In one embodiment, the irradiation unit is an electric heating wire. This structural arrangement, through careful design of the heating wire layout and power distribution, allows for the formation of a uniform thermal field on the component surface. This is crucial for the light injection process, which requires uniform heating, ensuring that each part of the solar cell receives the same intensity of infrared irradiation. Furthermore, the electric heating wire provides a wide spectral range; the continuous infrared spectrum generated by the heating wire can more comprehensively stimulate the potential performance of the solar cells.

[0067] Specifically, the irradiation unit includes a main body and multiple light source components. This combination of the main body and multiple light source components allows for modular light source configuration, enabling flexible arrangement and adjustment of the light source components according to the size, type, and irradiation requirements of the photovoltaic modules, increasing the flexibility of the equipment and the adaptability of the production process. Furthermore, the arrangement of multiple light source components allows for better control of the uniform distribution and intensity of light. By adjusting the power and angle of each light source component, consistent and appropriate light intensity irradiation of the modules can be ensured, which is crucial for improving module power and optimizing the production process.

[0068] In one embodiment, the light source is a point light source, and multiple light sources are arranged in an array on the side of the main body near the bearing surface 11. This array distribution of point light sources makes the device design more modular, facilitating adjustments to the light source configuration based on changes in component size and shape, and enhancing the device's adaptability to various components. Simultaneously, the failure of a single light source will not severely affect the entire light injection process, improving system redundancy and reliability.

[0069] In one embodiment, the light source is a strip light source, and multiple light sources are arranged at intervals along the length of the bearing surface 11 on the side of the main body near the bearing surface 11. In this way, the strip light source can provide a continuous beam of light along the length of the bearing surface, and the interval arrangement of multiple strip light sources can ensure uniform distribution of light on the surface of the component. Moreover, the strip light source occupies less space and is easy to arrange densely. Especially in a limited space, it can effectively illuminate a large area of ​​the component, thereby improving the space utilization efficiency of the equipment.

[0070] In one embodiment, the light source is a planar light source, with multiple light sources arranged at intervals on the side of the main body near the bearing surface 11. This results in a more uniform distribution of light and heat generated by the planar light source, reducing the risk of localized overheating, protecting the component from thermal damage, and improving yield and component reliability.

[0071] Specifically, the infrared light emitted by the irradiation unit has a wavelength greater than or equal to 800 nm and less than or equal to 1200 nm. Infrared light within this wavelength range has strong penetrating power, allowing it to penetrate deep into the material of the photovoltaic cell and exert specific physicochemical effects on the passivation layer and semiconductor structure of the cell, thereby promoting power output.

[0072] Specifically, the intensity of the infrared light emitted by the irradiation unit is less than 5 kW / m². 2 This helps ensure the safety of the light injection process, preventing excessively strong light sources from causing overheating of components or cells, resulting in damage or performance degradation, and ensuring the stability of the production process and the reliability of the product. It also helps reduce thermal stress on the surface and internal structure of the cells, thereby helping to maintain the original characteristics of the cells and achieving a moderate increase in power.

[0073] Specifically, the infrared light emitted by the irradiation unit has a temperature range greater than or equal to 200°C and less than or equal to 300°C. This temperature range can effectively activate the passivation layer of the solar cell and promote the performance optimization of semiconductor materials without causing excessive heat load, ensuring the light injection effect while also taking into account the safety and integrity of the solar cell.

[0074] In one embodiment, the laminating equipment further includes a temperature sensing element. The sensing end of the temperature sensing element is disposed on or facing the bearing surface 11, and is used to detect the maximum temperature on the bearing surface 11. With this structural arrangement, the temperature sensing element monitors the maximum temperature on the bearing surface 11 in real time, which is crucial for controlling the heating degree of the solar cells during light injection. Through temperature feedback, the power output of the light source assembly can be dynamically adjusted to ensure the temperature remains within the set ideal range, avoiding damage or performance degradation of the solar cells due to excessive temperature. Real-time temperature monitoring also improves the overall safety of the equipment; once abnormally high temperatures are detected, the system can immediately take measures to prevent accidents. Simultaneously, a stable operating temperature also helps extend the service life of the equipment and improve the reliability of the production process.

[0075] In one embodiment, the laminating apparatus further includes a light intensity detection device. The detection end of the light intensity detection device is disposed on the side of the bearing surface 11 near the infrared light source assembly 3. The detection end of the light intensity detection device is used to detect the light intensity of the infrared light emitted by the irradiation section. This structural arrangement helps to ensure the stability and effectiveness of the light injection process. Precise control of the light intensity can avoid the problems of insufficient light to effectively increase power or excessive light causing the battery cells to overheat.

[0076] In one embodiment, the lamination equipment further includes a temperature detection element and a light intensity detection element. The detection end of the temperature detection element is disposed on or facing the support surface 11, and is used to detect the maximum temperature on the support surface 11. The detection end of the light intensity detection element is disposed on the side of the support surface 11 near the infrared light source assembly 3, and is used to detect the light intensity of the infrared light emitted by the irradiation section. With this structural arrangement, the temperature detection element monitors the maximum temperature on the support surface 11 in real time, which is crucial for controlling the heating degree of the solar cells during the light injection process. Through temperature feedback, the power output of the light source assembly can be dynamically adjusted to ensure that the temperature is within the set ideal range, avoiding damage or performance degradation of the solar cells due to excessive temperature. Real-time temperature monitoring also improves the overall safety of the equipment. Once an abnormally high temperature is detected, the system can immediately take measures to prevent accidents. At the same time, a stable operating temperature also helps to extend the service life of the equipment and improve the reliability of the production process. The setting of the light intensity detection element helps to ensure the stability and effect of the light injection process. Precise control of the light intensity can avoid the problems of insufficient light to effectively increase power or excessive light causing overheating of the solar cells.

[0077] Specifically, the temperature sensing element can be a thermocouple or an infrared temperature sensor. The light intensity sensing element can be a photodiode or a pyroelectric detector.

[0078] Specifically, the laminated assembly 2 includes a housing 21 that forms a lamination cavity 211. An extrusion section 22 is disposed on the housing 21 and located within the lamination cavity 211. The housing 21 is vertically movable to a sealed position where it abuts against the bearing surface 11, or a second clearance position where it avoids the bearing element 1. When the housing 21 is in the sealed position, the bearing surface 11 and the housing 21 together form a closed cavity 4. Specifically, the end of the housing 21 closest to the bearing surface 11 is in close contact with the bearing surface 11 without gaps. Thus, when the housing 21 is in the sealed position, it fits tightly against the bearing surface 11, ensuring that the environment inside the lamination cavity 211 can be precisely controlled, including but not limited to temperature, pressure, and humidity. This is crucial for assembly lamination and subsequent light injection processing, improving the predictability and consistency of the process.

[0079] In the lamination process of photovoltaic modules, to remove air from inside the module, improve the contact tightness between the encapsulation material (such as EVA film) and the solar cells and backsheet, and eliminate any potential air bubbles, it is necessary to evacuate the sealed cavity 4. This ensures the integrity of the module's internal structure and optimal electrical performance. The formation of the sealed cavity 4 is a prerequisite for creating a vacuum environment. Only when the cavity is completely sealed can the pressure inside the cavity be effectively reduced by the vacuum pump to achieve the required vacuum level. Furthermore, the sealed design of the sealed cavity 4 effectively isolates external dust and impurities, which is particularly important for the manufacturing of photovoltaic modules, as any external contaminants may adhere to the module surface during the lamination process, affecting its aesthetics and performance. The vacuuming operation further purifies the environment inside the cavity, reducing the risk of contamination. The sealed design of the sealed cavity 4 also effectively isolates external dust and impurities, which is particularly important for the manufacturing of photovoltaic modules, as any external contaminants may adhere to the module surface during the lamination or light injection process, affecting the lamination or light injection effect.

[0080] In one embodiment, an elastic sealing ring (such as a rubber or silicone sealing ring) is used at the contact interface between the housing 21 and the bearing surface 11. The elastic material can fill any tiny gaps, ensuring no air leakage. This sealing ring is typically designed to be compressible; when the housing 21 descends and contacts the bearing surface 11, the sealing ring is compressed, forming a tight seal that effectively prevents air from entering or leaving the cavity.

[0081] In one embodiment, a magnetic material is installed at the contact end of the housing 21 near the bearing surface 11, and a matching metal or magnetic material is disposed at the corresponding position on the bearing surface 11. When the housing 21 descends to the sealing position, the magnetic force causes the two to fit tightly together, forming a highly efficient seal.

[0082] In one embodiment, a plurality of vacuum suction cups are designed at the bottom of the housing 21. When the housing 21 is lowered to the sealing position, the suction cups are activated, and the vacuum suction ensures that there is no gap between the housing 21 and the bearing surface 11, while improving the sealing effect.

[0083] In one embodiment, the laminating equipment further includes a cooling component disposed on one side of the laminating component 2. The cooling component includes a cooling channel and a cooling fan. The air outlet of the cooling channel is directed towards the carrier 1. The cooling fan is disposed within the cooling channel and drives the airflow within the cooling channel towards the air outlet. The laminating equipment also includes a moving component 5. The carrier 1 is disposed on the moving end of the moving component 5, which is movably positioned to move the carrier 1 to a laminating position opposite to the laminating component 2 or a cooling position opposite to the air outlet. With this structural arrangement, the system consisting of the cooling channel and the cooling fan of the cooling component can quickly cool the laminated or light-injected components to a safe temperature or a preset operating temperature. The cooling fan drives air through the cooling channel, accelerating the dissipation of heat from the component surface and shortening the time for the components to recover from a high temperature to room temperature, thereby improving the efficiency and throughput of the production line.

[0084] In one embodiment, the supporting surface 11 extends along a first preset direction; the infrared light source assembly 3 includes a driving member, and an irradiation part is disposed on the driving end of the driving member. The driving end of the driving member is movably disposed along the first preset direction. Thus, the dynamically moving infrared light source assembly 3 can adjust the irradiation area in real time according to the position change of the assembly on the supporting surface 11, achieving dynamic heat treatment of the assembly and helping to improve processing efficiency and resource utilization. Furthermore, the irradiation part of the infrared light source assembly 3 moves with the driving member along the first preset direction of the supporting surface 11, ensuring that every part of the assembly surface is uniformly irradiated with infrared light, which is crucial for improving the light injection effect and power enhancement of the assembly. This design allows the infrared light source assembly 3 to move on the supporting surface 11, adapting to the irradiation needs of assemblies of different sizes, improving the flexibility of the equipment and its adaptability to different production requirements.

[0085] In one embodiment, the supporting surface 11 extends along a first preset direction; the infrared light source assembly 3 includes a driving member, and an irradiation part is disposed on the driving end of the driving member. The driving end of the driving member is movably disposed along a second preset direction, which is set at a preset angle to the first preset direction. In this way, the infrared light source assembly 3 can move on the supporting surface 11 to adapt to the irradiation requirements of assemblies of different sizes, improving the flexibility of the equipment and its adaptability to different production requirements. It can also better ensure that every part of the component surface is uniformly irradiated with infrared light, which is crucial for improving the light injection effect and power enhancement of the component.

[0086] Specifically, the second preset direction is perpendicular to the first preset direction. The first preset direction is the length direction of the bearing surface 11, and the second preset direction is the width direction of the bearing surface 11.

[0087] In one embodiment, the supporting surface 11 extends along a first preset direction; the infrared light source assembly 3 includes a driving member, and an irradiation part is disposed on the driving end of the driving member. The driving end of the driving member is movably disposed along the direction from the supporting member 1 to the laminate assembly 2. This structural arrangement allows for adjustment of the irradiation distance between the light source and the photovoltaic module. By adjusting the distance, a more uniform light field is formed on the module surface, avoiding localized overheating or insufficient irradiation, ensuring that all cells receive uniform light injection treatment, and improving the photoelectric conversion efficiency of the module. Furthermore, different types of photovoltaic modules require different light injection conditions. The ability to adjust the irradiation distance between the light source and the module allows the equipment to adapt to various module types and production needs.

[0088] In one embodiment, the bearing surface 11 extends along a first preset direction; the infrared light source assembly 3 includes a driving member, and the irradiation part is disposed on the driving end of the driving member. The driving end of the driving member is movably disposed along the first preset direction, the second preset direction, and the direction from the bearing member 1 to the laminating assembly 2. With this structural arrangement, the multi-directional mobility of the driving end improves the adaptability of the equipment to components of different sizes and shapes, and allows the position of the light source to be adjusted for specific components to meet various process requirements, such as direct irradiation or tilted irradiation at a specific angle.

[0089] Specifically, the infrared light source assembly 3 includes a first angle adjustment component, a second angle adjustment component, and a reflector. The adjustment end of the first angle adjustment component is rotatably mounted, and the irradiation part is located on the adjustment end of the first angle adjustment component. The adjustment end of the second angle adjustment component is also rotatably mounted. The reflector has a reflective surface for reflecting light and is located on the adjustment end of the second angle adjustment component. This structural arrangement allows for adjustment of the light source irradiation angle via the angle adjustment component, enabling precise control of the beam direction and ensuring that the beam irradiates the component surface along the optimal path. This avoids light energy waste or uneven irradiation due to poor irradiation angles, improving the quality and efficiency of light injection. Furthermore, the reflector further adjusts and focuses the light source, ensuring that even under non-direct illumination conditions, the light intensity received by the component surface meets process requirements, improving the controllability and irradiation range of light injection, reducing shadow areas, and ensuring uniform light intensity distribution across the component surface.

[0090] Specifically, the working principle of the photovoltaic module lamination equipment is as follows: After lamination, the encapsulant film completes cross-linking and its transparency is improved. Then, infrared light (i.e., the infrared light emitted by infrared light source component 3) with a temperature range of 200-300℃ and a wavelength range of 800-1200nm is used to irradiate the photovoltaic module for a short period of time, less than 20 seconds, typically irradiating the front side of the cells in the photovoltaic module. After irradiation, the photovoltaic module undergoes cooling treatment. Subsequently, the cooled photovoltaic module can undergo electro-injection treatment.

[0091] One embodiment of this utility model provides a photovoltaic module production line, which includes the lamination equipment provided above.

[0092] The photovoltaic module production line provided by one embodiment of this utility model, compared with traditional production lines, adds an infrared irradiation function to the lamination equipment. This setting can further stimulate the passivation level of photovoltaic cells and repair minor damage, thereby improving the power of photovoltaic modules. According to relevant experimental test results, the power of photovoltaic modules irradiated by the infrared light source component 3 provided in this embodiment is increased by about 1W. Compared with traditional electrical injection technology, the infrared photothermal treatment provided in this embodiment is also more compact and efficient in terms of process flow. Electrical injection requires independent equipment and additional time, while the infrared light source component 3 can be directly integrated into the lamination equipment without adding additional steps, greatly shortening the waiting time between lamination and power enhancement treatment, and improving the efficiency and capacity of the production line. In addition, the photovoltaic modules receiving infrared light irradiation at high temperatures after lamination can enhance the light injection effect. After receiving infrared light irradiation at high temperatures, the cells can better promote the repair of internal defects, thereby obtaining a better passivation effect. The two work together to maximize the power enhancement potential. Therefore, the photovoltaic module production line provided by this embodiment can solve the technical problem of insufficient photovoltaic module power in the prior art.

[0093] Specifically, the photovoltaic module production line also includes an electro-injection device, which is located at the outlet of the laminating equipment. This setup, placing the electro-injection device at the laminating equipment outlet, achieves a seamless connection between the lamination and electro-injection processes, reducing non-processing waiting time for modules on the production line and improving the continuity and efficiency of the production process. After lamination, the modules can directly enter the electro-injection process without additional logistics handling, simplifying the production line layout and operation. The electro-injection device follows immediately after the lamination equipment, ensuring that the modules can receive electro-injection treatment promptly after lamination. This treatment helps eliminate microscopic defects inside the modules, promotes passivation of the cell surface and interior, and further improves the module's photoelectric conversion efficiency and output power.

[0094] As can be seen from the above description, the embodiments of this utility model achieve the following technical effects:

[0095] 1. This solution further enhances the passivation effect of the solar cells by subjecting them to brief infrared thermal irradiation immediately after lamination, significantly improving the photoelectric conversion efficiency of the module and ultimately increasing the module power, which is expected to be at least 1W higher than the traditional process.

[0096] 2. Integrating the infrared light source component into the lamination equipment optimizes the production process, reduces the transmission time of components between different processes, avoids unnecessary physical and temperature fluctuations, ensures a smooth transition of components from lamination to electrical injection, and improves production efficiency and process stability.

[0097] 3. When photovoltaic modules are exposed to infrared light at high temperatures after lamination, the light injection effect is enhanced. When the cells at high temperatures are exposed to infrared light, the internal defects are better repaired, resulting in a better passivation effect. The two work together to maximize the potential for power improvement.

[0098] Those skilled in the art will understand that the above embodiments are specific examples of implementing this application, and in practical applications, various changes in form and detail can be made without departing from the spirit and scope of this application. Any person skilled in the art can make various alterations and modifications without departing from the spirit and scope of this application; therefore, the scope of protection of this application should be determined by the scope defined in the claims.

Claims

1. A lamination device for photovoltaic modules, characterized in that, include: The carrier (1) has a bearing surface (11) for bearing the laminate to be laminated; A laminating assembly (2) is disposed above the support member (1). The extrusion part (22) of the laminating assembly (2) is movably disposed so as to move to an extrusion position that abuts against the laminating member or a first avoidance position that avoids the laminating member. An infrared light source assembly (3) is disposed below the carrier (1). The irradiation part of the infrared light source assembly (3) is used to emit infrared light and is disposed toward the carrier surface (11) to irradiate the laminator.

2. The lamination equipment for photovoltaic modules according to claim 1, characterized in that, At least a portion of the carrier (1) is made of a transparent material, and the irradiation portion is disposed opposite to at least a portion of the carrier (1); or, The carrier (1) is provided with a light-transmitting opening extending through the thickness of the carrier (1), and the irradiation part is disposed opposite to the light-transmitting opening; or, The carrier (1) is provided with a clearance opening that extends through the thickness direction of the carrier (1). The laminating equipment also includes a shielding member, which is movably disposed at the clearance opening so that it can be moved to a light-blocking position that covers the clearance opening or a light-transmitting position that allows the shielding member and the clearance opening to avoid each other.

3. The lamination equipment for photovoltaic modules according to claim 1, characterized in that, The irradiation unit is an LED light; or... The irradiation part is an electric heating wire.

4. The lamination equipment for photovoltaic modules according to claim 1, characterized in that, The irradiation unit includes a main body and multiple light source components, wherein: The light source is a point light source, and multiple light sources are arranged in an array on the side of the main body near the bearing surface (11); or, The light source is a strip light source, and multiple light sources are arranged at intervals along the length of the bearing surface (11) on the side of the main body near the bearing surface (11); or, The light source is a planar light source, and multiple light sources are arranged at intervals on the side of the main body near the bearing surface (11).

5. The lamination equipment for photovoltaic modules according to any one of claims 1 to 4, characterized in that, The laminated assembly (2) includes: A housing component (21) surrounds a lamination cavity (211), and an extrusion part (22) is disposed on the housing component (21) and located within the lamination cavity (211). The housing component (21) is vertically and vertically disposed to move to a sealing position where the housing component (21) abuts against the bearing surface (11) or a second clearance position where the housing component (21) avoids the bearing component (1). When the housing component (21) is in the sealed position, the bearing surface (11) and the housing component (21) together form a sealed cavity (4).

6. The lamination equipment for photovoltaic modules according to claim 1, characterized in that, The wavelength of the infrared light emitted by the irradiation unit is greater than or equal to 800 nm and less than or equal to 1200 nm; and / or, The intensity of the infrared light emitted by the irradiation unit is less than 5 kW / m². 2 ; and / or, The lamination equipment further includes a temperature detection element, the detection end of which is disposed on or facing the bearing surface (11), and the detection end of which is used to detect the maximum temperature on the bearing surface (11); and / or, The laminating equipment also includes a light intensity detection device. The detection end of the light intensity detection device is located on the side of the bearing surface (11) near the infrared light source assembly (3). The detection end of the light intensity detection device is used to detect the light intensity of the infrared light emitted by the irradiation part.

7. The lamination equipment for photovoltaic modules according to claim 1, characterized in that, The lamination equipment also includes: A cooling component is disposed on one side of the laminating component (2); the cooling component includes a cooling channel and a cooling fan, the air outlet of the cooling channel is disposed toward the carrier (1); the cooling fan is disposed in the cooling channel and is used to drive the air in the cooling channel to flow toward the air outlet; The laminating equipment further includes a moving component (5), and the carrier (1) is disposed on the moving end of the moving component (5). The moving end of the moving component (5) is movably disposed to drive the carrier (1) to a laminating position in which the carrier (1) is disposed opposite to the laminating component (2) or to a cooling position in which the carrier (1) is disposed opposite to the air outlet.

8. The lamination equipment for photovoltaic modules according to claim 1, characterized in that, The bearing surface (11) extends along a first preset direction; the infrared light source assembly (3) includes a driving member, and the irradiation part is disposed on the driving end of the driving member; wherein: The driving end of the driving component is movably disposed along the first preset direction; and / or, The driving end of the driving component is movably disposed along a second preset direction, the second preset direction being disposed at a preset angle to the first preset direction; and / or, The driving end of the driving member is movably disposed along the direction from the carrier (1) to the laminating assembly (2).

9. The lamination equipment for photovoltaic modules according to claim 1, characterized in that, The infrared light source component (3) includes: A first angle adjusting member, wherein the adjusting end of the first angle adjusting member is rotatably disposed, and the irradiation part is disposed on the adjusting end of the first angle adjusting member; A second angle adjusting member and a reflector, wherein the adjusting end of the second angle adjusting member is rotatably disposed; the reflector has a reflective surface for reflecting light and is disposed on the adjusting end of the second angle adjusting member.

10. A photovoltaic module production line, characterized in that, include: The lamination apparatus for a photovoltaic module according to any one of claims 1 to 9.

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