Packaging method of photovoltaic module and glue injection equipment

By introducing automated weighing and glue injection systems into photovoltaic module packaging equipment, the problem of manual detection errors in the existing technology is solved, and more accurate detection of colloid injection amount and higher packaging quality are achieved.

CN119317193APending Publication Date: 2025-01-14TRINA SOLAR CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202411435794.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-10-15
Publication Date
2025-01-14

AI Technical Summary

Technical Problem

Existing photovoltaic module packaging equipment requires manual participation in colloid weight detection, and there is an error in the weighing result, which cannot accurately represent the weight of the actual injected colloid.

Method used

A photovoltaic module packaging method and glue injection equipment are provided. By instantly obtaining the weight of the glue injected during the glue injection process, the combination of the weighing unit and the glue injection unit is used to automatically detect and ensure that the amount of glue injected meets the preset threshold.

Benefits of technology

Automated colloid weight detection is realized, which improves the qualification rate of glue injection and the packaging quality of photovoltaic modules, and reduces manual errors.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN119317193A_ABST
    Figure CN119317193A_ABST
Patent Text Reader

Abstract

The embodiment of the invention provides a packaging method of a photovoltaic module and glue injection equipment, and relates to the technical field of photovoltaic cells. The packaging method of the photovoltaic module comprises the steps of obtaining a first weight of a frame under the condition that the frame is obtained; injecting the colloid into the frame, and obtaining a second weight of the frame filled with the colloid in the colloid injection process, or injecting the colloid with a preset quantity value into the frame, and obtaining the second weight of the frame filled with the colloid under the condition that the colloid with the preset quantity value is injected; and under the condition that the difference between the second weight and the first weight meets a preset threshold value, the frame is fixedly installed on the periphery of the photovoltaic module. According to the embodiment of the invention, in the glue injection process or after glue injection is completed, the glue injection weight is obtained in real time. According to the technical scheme, the glue injection weight is obtained in real time, and the frame with the glue injection weight meeting the requirement can be used for packaging the photovoltaic module, so that the glue amount in the frame for packaging the photovoltaic module meets the packaging requirement, and the product quality of the photovoltaic module is improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The present application relates to the technical field of photovoltaic cells and the technical field of photovoltaic cell packaging, and in particular to a packaging method and glue injection equipment for photovoltaic modules. Background Art

[0002] In the packaging of photovoltaic modules, it is necessary to first use packaging glass to package the battery cells, and then package the aluminum alloy frame around the packaging glass to make the battery cells have stronger protection performance.

[0003] When encapsulating an aluminum alloy frame, a colloid needs to be injected into the frame to be encapsulated so that the photovoltaic module is firmly bonded to the frame, thereby improving the firmness and stability of the encapsulated photovoltaic module; in addition, the injected colloid can also have a water-blocking effect after solidification.

[0004] In the existing automated packaging equipment, a controlled quantitative amount of colloid is injected into the frame to ensure that the quality of the colloid in each frame meets the requirements. During the inspection, the frame that has been injected with the colloid is manually taken out for weighing. The weighing result is the total weight of the frame and the colloid. It is also necessary to take another frame that has not been injected with the colloid or the frame to be injected with the colloid and weigh it to obtain the weight of the injected colloid. This method requires human participation, and the weighing result has a certain error, and the weighing result cannot represent the actual weight of the injected colloid. Therefore, it is urgent to provide an automated colloid weight detection device or glue injection method whose weighing result has a more practical reference value.

[0005] It should be noted that the above content is not necessarily prior art, nor is it intended to limit the scope of patent protection of this application. Summary of the invention

[0006] The embodiment of the present application provides a packaging method and glue injection equipment for a photovoltaic module, so as to instantly obtain the weight of the injected glue.

[0007] As a first aspect of an embodiment of the present application, an embodiment of the present application provides a method for packaging a photovoltaic module, comprising: In the case of obtaining a border, obtain the first weight of the border; Injecting colloid into the frame, and obtaining a second weight of the frame filled with colloid during the process of injecting the colloid, or injecting a preset amount of colloid into the frame, and obtaining a second weight of the frame filled with colloid after the injection of the preset amount of colloid is completed; When the difference between the second weight and the first weight meets a preset threshold, the frame is fixedly installed on the periphery of the photovoltaic assembly.

[0008] In one embodiment, a preset amount of colloid is injected into the frame, and when the preset amount of colloid is injected, a second weight of the frame filled with colloid is obtained. The method also includes: when the difference between the second weight and the first weight exceeds a preset threshold, the frame filled with colloid is removed.

[0009] In one embodiment, the method further includes obtaining a size parameter of the frame, and determining a preset value and / or a preset threshold based on the size parameter.

[0010] As a second aspect of an embodiment of the present application, an embodiment of the present application provides a glue injection device, including: Base; A weighing unit, which is movably mounted on a base and includes a weighing platform and a weighing sensor; The glue injection unit includes a truss and a glue injection head, and the glue injection head is arranged on the crossbeam of the truss and is arranged toward the base; When the frame to be injected with glue is placed on a weighing platform, the weighing unit moves relative to the base to below the glue injection head, so that the glue injection head injects glue toward the frame on the weighing platform.

[0011] In one embodiment, the weighing unit further comprises a rotating mechanism for driving the weighing platform to rotate, and the rotating mechanism is disposed below the weighing platform and movably mounted on the base.

[0012] In one embodiment, the weighing platform includes a plurality of weighing areas, and the plurality of weighing areas are arranged in sequence along the moving direction of the weighing unit; and a limit baffle is provided between adjacent weighing areas.

[0013] In one embodiment, a clamping unit is further included, and the clamping unit includes: A clamping piece, used for clamping the frame; A direction adjustment component, the direction adjustment component includes a rotating table and a first power member driving the rotating table to rotate; The position adjustment component includes multiple support rods and multiple telescopic rods corresponding to driving the support rods to rotate. At least one support rod is rotatably connected to the rotating table. The fixed end of the telescopic rod corresponding to at least one support rod is connected to the rotating table, and the output end is connected to the support rod.

[0014] In one embodiment, a stacking unit is further included, and the stacking unit includes a stacking platform. The stacking platform is tilted relative to the base, and a side of the stacking platform used for stacking the frame faces the clamping member.

[0015] In one embodiment, the crossbeam includes a screw mechanism and a moving rod; the glue injection unit also includes a fixed block, the glue injection head is fixedly connected to the fixed block, and the fixed block is sleeved on the screw of the screw mechanism and the moving rod.

[0016] In one embodiment, the glue injection unit further includes a fixed plate and a connecting rod, the connecting rod includes a first end and a second end opposite to each other, the first end is fixedly connected to the fixed block, the second end is rotatably connected to the fixed plate, and the glue injection head is fixed to the fixed plate.

[0017] In the embodiment of the present application, during the process of glue injection or after the glue injection is completed, that is, during the process of implementing the glue injection, the weight of the glue injection, that is, the difference between the second weight and the first weight, is obtained in real time. By obtaining the weight of the glue injection in real time, the glue-injected frame that meets the glue injection weight requirement can be used to encapsulate the photovoltaic module, so that the amount of glue in the frame used to encapsulate the photovoltaic module meets the encapsulation requirements, instead of manually spot-checking individual glue-injected frames; the qualified rate of the glue injection can be improved, and the quality of the encapsulated photovoltaic module can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the multiple drawings represent the same or similar parts or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings only depict some embodiments disclosed in the present application and should not be regarded as limiting the scope of the present application.

[0019] Figure 1 A schematic diagram showing a process of a photovoltaic module packaging method according to an embodiment of the present application.

[0020] Figure 2 A schematic structural diagram of a glue injection device according to an embodiment of the present application is shown.

[0021] Figure 3 A schematic structural diagram of a weighing unit of a glue injection device according to an embodiment of the present application is shown.

[0022] Figure 4 A schematic structural diagram of a clamping unit of a glue injection device according to an embodiment of the present application is shown.

[0023] Figure 5 A schematic structural diagram of a glue injection unit of a glue injection device according to an embodiment of the present application is shown. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other in the absence of conflict. The present application will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

[0025] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0026] In the present application, when it comes to a numerical interval (i.e., a numerical range), unless otherwise specified, the distribution of the optional numerical values ​​in the numerical interval is considered to be continuous, and includes the two numerical endpoints (i.e., the minimum and maximum values) of the numerical interval, and each numerical value between the two numerical endpoints. Unless otherwise specified, when the numerical interval only refers to an integer in the numerical interval, it includes the two endpoint integers of the numerical range, and each integer between the two endpoints, which is equivalent to directly listing each integer. When multiple numerical ranges are provided to describe features or characteristics, these numerical ranges can be merged. In other words, unless otherwise specified, the numerical range disclosed in the present application should be understood to include any and all sub-ranges included therein. The "numerical value" in the numerical interval can be any quantitative value, such as a number, a percentage, a ratio, etc. "Numerical interval" allows for broadly including quantitative intervals such as percentage intervals, ratio intervals, and ratio intervals.

[0027] Hereinafter, exemplary embodiments according to the present application will be described in more detail with reference to the accompanying drawings. It should be noted that these exemplary embodiments can be implemented in many different forms and should not be construed as being limited to the embodiments described herein.

[0028] Figure 1 A schematic diagram showing a process flow of a photovoltaic module packaging method according to an embodiment of the present application is shown. Figure 1 As shown, the packaging method of the photovoltaic module provided in the embodiment of the present application includes: S210: When a frame is obtained, obtain a first weight of the frame.

[0029] S220, injecting colloid into the frame, and obtaining a second weight of the frame filled with colloid during the process of injecting the colloid, or injecting a preset amount of colloid into the frame, and obtaining a second weight of the frame filled with colloid after the preset amount of colloid is injected.

[0030] S230: When the difference between the second weight and the first weight meets a preset threshold, the frame is fixedly installed around the photovoltaic assembly.

[0031] In the embodiment of the present application, during the process of glue injection or after the glue injection is completed, that is, during the process of implementing the glue injection, the weight of the glue injection, that is, the difference between the second weight and the first weight, is obtained in real time. By obtaining the weight of the glue injection in real time, the glue-injected frame that meets the glue injection weight requirement can be used to encapsulate the photovoltaic module, so that the amount of glue in the frame used to encapsulate the photovoltaic module meets the encapsulation requirements, instead of manually spot-checking individual glue-injected frames; the qualified rate of the glue injection can be improved, and the quality of the encapsulated photovoltaic module can be improved.

[0032] The frame can be obtained by dropping the frame into a weighing position to weigh the frame at the weighing position; or the frame can be dropped into a glue injection position to weigh the frame at the glue injection position, and then glue is injected toward the frame at the glue injection position.

[0033] During the process of injecting the colloid, the second weight of the frame filled with the colloid is obtained, so that the injection of the colloid can be stopped when the weight of the frame filled with the colloid meets the requirement.

[0034] The preset threshold value may be set according to the standard weight of the glue injection required. For example, if the standard weight of the glue injection required is 50g, the preset threshold value may be 49-51g. That is, the preset threshold value may include an error range.

[0035] Different frames require different standard weights of glue injection, and the standard weight can be set or a threshold can be preset according to actual application requirements.

[0036] In one embodiment, a preset amount of colloid is injected into the frame, and when the preset amount of colloid is injected, a second weight of the frame filled with colloid is obtained. The method also includes: when the difference between the second weight and the first weight exceeds a preset threshold, the frame filled with colloid is removed.

[0037] During the glue injection process, each injection can be set to be injected according to a preset amount, which can improve the efficiency of the glue injection. In this case, after the glue injection is completed, due to mechanical wear or errors in the value measuring device, too much or too little glue may be injected. At this time, after the glue injection is completed, the difference between the second weight and the first weight may exceed the preset threshold, and the glue injection is unqualified. The frame of the injected glue needs to be removed to avoid the frame being used for the subsequent packaging of photovoltaic modules, which affects the product quality of photovoltaic modules.

[0038] In one embodiment, the method further includes obtaining a size parameter of the frame, and determining a preset value and / or a preset threshold based on the size parameter.

[0039] Different frame sizes require different standard weights of colloid to be injected. For example, if the frame is longer, more colloid will naturally be injected.

[0040] In one example, the standard weight of the colloid to be injected or the preset value of the colloid to be injected or the preset threshold of the difference between the second weight and the first weight can be obtained by detecting the size parameters of the frame, such as the length and width of the frame, and then using the conversion formula between the size parameters and the injected colloid.

[0041] By automatically obtaining a preset value and / or a preset threshold through the size parameters of the border, the degree of automation can be further improved.

[0042] like Figure 2-5 As shown, an embodiment of the present application provides a glue injection device, including a base 1, a weighing unit 7 and a glue injection unit.

[0043] The base 1 can stand on the floor or in a rack.

[0044] The weighing unit 7 is movably mounted on the base 1 , and the weighing unit 7 includes a weighing platform 72 and a weighing sensor 75 .

[0045] The weighing unit 7 can be movably mounted on the base 1 , and can be slidably mounted, or the weighing unit 7 can be driven to move by a conveying device on the base 1 , for example, the conveying device can be a chain conveyor.

[0046] The weighing platform 72 is used to place the frame to be weighed, and the weighing sensor 75 is used to detect the weight value.

[0047] The glue injection unit includes a truss and a glue injection head 16 . The glue injection head 16 is arranged on the crossbeam of the truss and is arranged toward the base 1 . The glue injection head 16 is used to inject the colloid value into the frame on the weighing platform 72 .

[0048] When the frame to be injected with glue is placed on the weighing platform 72 , the weighing unit 7 moves relative to the base 1 to below the glue injection head 16 , so that the glue injection head 16 injects glue toward the frame on the weighing platform 72 .

[0049] In one embodiment, the weighing unit 7 further includes a rotating mechanism 71 for driving the weighing platform 72 to rotate. The rotating mechanism 71 is disposed below the weighing platform 72 and is movably mounted on the base 1 .

[0050] The rotating mechanism 71 is fixed below the weighing platform 72 and can be conveniently slidably installed with the base 1. The rotating mechanism 71 drives the weighing platform 72 to move, which can avoid the weighing platform 72 from contacting the base 1 and affecting the weighing result of the weighing platform 72.

[0051] The rotating mechanism 71 may be a rotating motor, and the output shaft of the rotating motor is fixedly connected to the weighing platform 72 to drive the weighing platform 72 to rotate.

[0052] The rotating mechanism 71 drives the weighing platform 72 to rotate, and the angle of the weighing platform 72 can be adjusted so that the weighing platform 72 receives the frame at a suitable position and places the frame under the glue injection head 16, so that the glue injection head 16 can inject glue into the frame.

[0053] In one embodiment, the weighing platform 72 includes a plurality of weighing areas 76 , and the plurality of weighing areas 76 are sequentially arranged along the moving direction of the weighing unit 7 ; and a limit baffle 73 is provided between adjacent weighing areas 76 .

[0054] The multiple weighing areas 76 of the weighing platform 72 are arranged so that each weighing area 76 can weigh the frame independently, and multiple frames can be weighed at one time. At the same time, as the weighing platform 72 moves, the frames in the multiple weighing areas 76 move one by one to the bottom of the glue injection head 16, and glue injection can be achieved for multiple frames during one movement, thereby improving glue injection efficiency.

[0055] Each weighing area 76 may also be provided with a display screen 77 for displaying the weight value.

[0056] In one embodiment, a clamping unit 6 is further included, and the clamping unit 6 includes: a clamping member 610, a direction adjustment component and a position adjustment component.

[0057] The clamping member 610 is used to clamp the frame. The clamping member 610 can adopt various technical solutions that are currently available in the art or may be used in the future to clamp workpieces or frames. This embodiment of the application does not limit this.

[0058] The direction adjustment assembly includes a rotating platform 602 and a first power member 601 for driving the rotating platform 602 to rotate. The rotating platform 602 is fixedly connected to the output shaft of the first power member 601, so that the first power member 601 can drive the rotating platform 602 to rotate.

[0059] The position adjustment assembly includes a plurality of support rods and a plurality of telescopic rods corresponding to the support rods for driving the support rods to rotate, at least one support rod is rotatably connected to the rotating platform, a fixed end of the telescopic rod corresponding to at least one support rod is connected to the rotating platform, and an output end is connected to the support rod. The telescopic movement of the telescopic rod can adjust the support rod to different angles.

[0060] The remaining support rods can be connected end to end and rotatably connected to each other, and the telescopic rod is fixed between adjacent support rods.

[0061] As shown in Figure 4, the position adjustment assembly may include two struts and two telescopic rods, wherein the fixed end of the first telescopic rod 603 corresponding to the first strut 604 is connected to the rotating table 602, and the output end is connected to the first strut 604; one end of the second strut 606 is rotatably connected to the first strut 604, and the other end is fixedly connected to the clamping member 610; the fixed end of the second telescopic rod 614 corresponding to the second strut 606 is connected to the first strut 604, and the output end is connected to the second strut 606.

[0062] The first power member 601 drives the rotating platform 602 to rotate, so that the clamping member 610 can clamp the frame from different angles.

[0063] In one embodiment, a stacking unit is further included, and the stacking unit includes a stacking platform 5, which is tilted relative to the base 1, and a side of the stacking platform 5 used for stacking frames faces the clamping member 610. The stacking platform 5 of the stacking unit is used to receive a plurality of frames, so that the clamping member 610 can clamp the frames from the stacking platform 5.

[0064] The stacking unit also includes an angle adjustment device, which includes a lifting cylinder 3. The lifting cylinder 3 drives the stacking platform 5 to rotate, so that the stacking platform 5 can be adjusted to different angles to facilitate the clamping member 610 to clamp the frame.

[0065] In one embodiment, the truss includes a first vertical pole 8, a second vertical pole 9 and a crossbeam. The crossbeam includes a screw mechanism and a moving rod 13; the screw mechanism includes a screw and a motor 10 for driving the screw 11 to rotate. The glue injection unit also includes a fixed block 12, and the glue injection head 16 is fixedly connected to the fixed block 12, and the fixed block 12 is sleeved on the screw 11 of the screw mechanism and the moving rod 13.

[0066] The fixing block is sleeved on the screw rod 11 of the screw rod mechanism, so that the fixing block 12 can drive the glue injection head 16 to move.

[0067] In the embodiment of the present application, the fixed block 12 is also sleeved on the moving rod 13, so that the fixed block 12 can move along the moving rod 13, thereby preventing the moving direction from fluctuating along with the screw rod 11 and affecting the glue injection effect.

[0068] In one embodiment, the glue injection unit also includes a fixed plate 15 and a connecting rod 14 , the connecting rod 14 includes a first end and a second end opposite to each other, the first end is fixedly connected to the fixed block 12 , and the second end is rotatably connected to the fixed plate 15 , and the glue injection head 16 is fixed on the fixed plate 15 .

[0069] The second end of the connecting rod 14 is rotatably connected to the fixed plate 15, and the glue injection head 16 is fixed to the fixed plate 15, so that the position of the glue injection head 16 can be adjusted by rotating the fixed plate 15. The connecting rod 14 can also be a driving device capable of driving the fixed plate 15 to rotate.

[0070] In one example, a scraper device is also provided on the fixed plate 15 to scrape off the colloid that falls into other positions of the frame during the glue injection process, further improving the glue injection effect. The scraper device may include a scraper head 17, an elastic member 19, and a fixed frame 18 for fixing the scraper. The elastic member 19 can prevent the scraper head 17 from damaging the frame when scraping the colloid.

[0071] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0072] For the convenience of description, the orientation or position relationship indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, vertical, horizontal" and "top, bottom" is usually based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description. Unless otherwise stated, these directional words do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present application; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Therefore, the exemplary term "above..." can include both "above..." and "below..." orientations. The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used here are interpreted accordingly.

[0073] Unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0074] Unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is lower in level than the second feature.

[0075] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so that once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0076] It should also be noted that "one embodiment", "another embodiment", "embodiment", etc. mentioned in this specification refer to the specific features, structures or characteristics described in conjunction with the embodiment included in at least one embodiment generally described in this application. The same expression appearing in multiple places in the specification does not necessarily refer to the same embodiment. Further, when describing a specific feature, structure or characteristic in conjunction with any embodiment, it is claimed that the realization of such feature, structure or characteristic in conjunction with other embodiments also falls within the scope of this application.

[0077] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0078] It should also be noted that the above are only preferred embodiments of the present application, and the patent protection scope of the present application is not limited thereto. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A method for packaging a photovoltaic module, characterized in that: include: When a frame is obtained, a first weight of the frame is obtained; Injecting colloid into the frame, and obtaining a second weight of the frame filled with the colloid during the process of injecting the colloid, or injecting a preset amount of colloid into the frame, and obtaining a second weight of the frame filled with the colloid after the injection of the preset amount of colloid is completed; When the difference between the second weight and the first weight meets a preset threshold, the frame is fixedly installed on the periphery of the photovoltaic assembly.

2. The packaging method according to claim 1, characterized in that: A preset amount of colloid is injected into the frame, and when the preset amount of colloid is injected, a second weight of the frame filled with the colloid is obtained. The method also includes: when the difference between the second weight and the first weight exceeds the preset threshold, the frame filled with the colloid is removed.

3. The packaging method according to claim 1, characterized in that: The method further includes obtaining a size parameter of the frame, and determining the preset value and / or the preset threshold based on the size parameter.

4. A glue injection device, characterized in that: include: Base; A weighing unit, the weighing unit is movably mounted on the base, and the weighing unit comprises a weighing platform and a weighing sensor; A glue injection unit, the glue injection unit comprising a truss and a glue injection head, the glue injection head is arranged on a crossbeam of the truss and is arranged toward the base; When the frame to be injected with glue is placed on the weighing platform, the weighing unit moves relative to the base to below the glue injection head, so that the glue injection head injects glue toward the frame on the weighing platform.

5. The glue injection equipment according to claim 4, characterized in that: The weighing unit further comprises a rotating mechanism for driving the weighing platform to rotate. The rotating mechanism is arranged below the weighing platform and is movably mounted on the base.

6. The glue injection equipment according to claim 4 or 5, characterized in that: The weighing platform comprises a plurality of weighing areas, and the plurality of weighing areas are arranged in sequence along the moving direction of the weighing unit; and a limit baffle is provided between adjacent weighing areas.

7. The glue injection equipment according to claim 4, characterized in that: Also included is a clamping unit, the clamping unit comprising: A clamping member, the clamping member is used to clamp the frame; A direction adjustment assembly, the direction adjustment assembly comprising a rotating table and a first power member driving the rotating table to rotate; A position adjustment component, the position adjustment component includes a plurality of struts and a plurality of telescopic rods corresponding to the struts for driving the struts to rotate, at least one of the struts is rotatably connected to the rotating table, a fixed end of the telescopic rod corresponding to at least one of the struts is connected to the rotating table, and an output end is connected to the struts.

8. The glue injection equipment according to claim 7, characterized in that: It also includes a stacking unit, which includes a stacking platform. The stacking platform is tilted relative to the base, and a side of the stacking platform used for stacking the frame faces the clamping member.

9. The glue injection equipment according to claim 4, characterized in that: The crossbeam includes a screw mechanism and a moving rod; the glue injection unit also includes a fixed block, the glue injection head is fixedly connected to the fixed block, and the fixed block is sleeved on the screw of the screw mechanism and the moving rod.

10. The glue injection equipment according to claim 9, characterized in that: The glue injection unit also includes a fixed plate and a connecting rod, the connecting rod includes a first end and a second end opposite to each other, the first end is fixedly connected to the fixed block, the second end is rotatably connected to the fixed plate, and the glue injection head is fixed to the fixed plate.