Scaling powder coating device

Abstract

The utility model provides a soldering flux coating device which comprises a battery string platform, and welding strips are arranged at the two ends of a battery string. And the scaling powder assembly is arranged beside the battery string platform, and scaling powder is contained in the scaling powder assembly. And the battery string suction assembly is used for sucking the battery string on the battery string platform, moving the battery string into the soldering flux assembly and enabling the solder strips at the two ends of the battery string to be immersed in the soldering flux, and the soldering flux is coated on the surfaces of the solder strips at the two ends of the battery string. The soldering flux coating device provided by the utility model is arranged before a battery string flows into a stitch welding machine, and after the battery string is manufactured, soldering flux can be coated on welding strips at the two ends of the battery string through the soldering flux coating device provided by the utility model. The battery string coated with the soldering flux enters the stitch welding machine, and the soldering flux does not need to be sprayed on the battery string in the stitch welding machine, so that soldering flux crystallization cannot be generated in the stitch welding machine, the internal structure of the stitch welding machine is better protected, and the production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of photovoltaic power generation, and particularly relates to a flux coating device. BACKGROUND

[0002] At present, with the development of science and technology, the use of energy is paid more and more attention. The role of photovoltaic power generation technology in life is also more and more prominent. Photovoltaic power generation technology can convert light energy into electrical energy, and fully utilizes the energy of nature.

[0003] At present, the photovoltaic product in the workshop is produced and processed by using a film covering scheme, that is, the welding strip above the cell sheet is fixed by using a carrier film, and then a laminating machine is used for connection. Therefore, the flux is not needed for the stringer, and the flux is not sprayed on the welding strip when the stringer is used to form a string. After the cell sheet without the sprayed flux is used to form a string and complete the string layout, the cell sheet directly flows into the lap welding machine. In order to ensure the welding effect of the bus bar of the cell string, the flux is sprayed on the bus bar in the lap welding machine, and then the lap welding machine is used to complete the welding of the bus bar and the welding strip at both ends of the cell string. During the process of spraying the flux on the bus bar in the lap welding machine, the flux crystallizes in the internal structure of the lap welding machine, which causes the lap welding machine to drop the string, seriously affects the production capacity and service life of the equipment in the workshop, and needs to regularly arrange personnel to maintain the internal structure of the lap welding machine, which is time-consuming and laborious and affects the production efficiency. CONTENT OF THE UTILITY MODEL

[0004] To solve one of the above technical problems, the utility model provides a flux coating device.

[0005] The utility model embodiment provides a flux coating device, which comprises:

[0006] A cell string platform is used for placing a cell string, and welding strips are arranged at both ends of the cell string.

[0007] A flux assembly is arranged beside the cell string platform and internally contains flux.

[0008] A cell string suction assembly comprises a suction mechanism and a moving mechanism.

[0009] The suction mechanism is used for detecting the position of the cell string on the cell string platform and sucking the cell string when the cell string is in a specified position.

[0010] The moving mechanism is used for controlling the position of the suction mechanism, moving the cell string into the flux assembly, and immersing the welding strips at both ends of the cell string in the flux, so that the flux is coated on the surface of the welding strips at both ends of the cell string.

[0011] Preferably, the moving mechanism comprises:

[0012] A translation mechanism is fixedly connected with the suction mechanism and is used for controlling the lateral position of the suction mechanism.

[0013] A lifting mechanism is fixedly connected with the suction mechanism and is used for controlling the longitudinal position of the suction mechanism.

[0014] Preferably, the suction mechanism comprises:

[0015] A support plate is located at the top of the suction mechanism and is fixedly connected with the translation mechanism and the lifting mechanism.

[0016] A suction disc is located below the support plate and is fixedly connected with the support plate through a fixed column.

[0017] Preferably, the suction disc is a plurality of suction discs which are arranged at equal intervals below the support plate.

[0018] Preferably, the suction mechanism further comprises a position detection unit which is located at both ends of the support plate and is used for detecting the position of the battery string.

[0019] Preferably, the flux assembly comprises two flux pools which correspond to the welding ribbons at both ends of the battery string respectively, a sponge is arranged in each flux pool, and flux is contained in each flux pool and is adsorbed on the surface of the sponge.

[0020] Preferably, the flux assembly further comprises a flux tank which contains flux, the flux tank is in communication with the two flux pools through a pipeline, and a pressure pump is arranged in the flux tank and is used for pumping the flux in the flux tank into the flux pools.

[0021] Preferably, the detection mechanism is arranged on the moving path of the battery string and is used for performing EL detection on the battery string coated with flux.

[0022] Preferably, a conveying belt is arranged on the battery string platform.

[0023] The beneficial effects of the utility model are as follows: the flux coating device is arranged before the battery string flows into the stacker, and after the battery string is manufactured, the flux coating device can be used to coat flux on the welding ribbons at both ends of the battery string. The battery string coated with flux enters the stacker, and the stacker does not need to spray flux on the battery string, so that the stacker is not likely to produce flux crystallization, the internal structure of the stacker is better protected, and the production efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0024] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0025] Figure 1 This is a schematic structural diagram of a flux coating device according to an embodiment of the present utility model;

[0026] Figure 2 This is a structural diagram of the suction mechanism according to an embodiment of the present utility model;

[0027] Figure 3 A side view of the flux coating device according to an embodiment of the present utility model;

[0028] Figure 4 This is a schematic structural diagram of the flux assembly described in an embodiment of the present utility model.

[0029] Reference numerals:

[0030] 1. Battery string platform, 2. Battery string suction component, 3. Flux component, 4. Detection mechanism, 5. Battery string;

[0031] 2-1, suction mechanism, 2-2, translation mechanism, 2-3, lifting mechanism;

[0032] 2-1-1, support plate, 2-1-2, suction cup, 2-1-3, fixing column, 2-1-4, position detection unit;

[0033] 3-1. Flux pool, 3-2. Flux bin, 3-3. Pipeline. DETAILED DESCRIPTION

[0034] In order to make the technical solutions and advantages of the embodiments of the present application more clearly understood, the exemplary embodiments of the present application are further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, and are not an exhaustive list of all the embodiments. It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other unless they conflict.

[0035] like Figure 1 As shown, this embodiment proposes a flux coating device that can be used between the production processes of the stringer and the stitch welder. After the stringer completes the stringing and layout of the cells, the cells flow into the flux coating device of this embodiment for flux coating, and then flow into the stitch welder for welding. The flux coating device includes:

[0036] A battery string platform 1, used for placing a battery string 5;

[0037] The battery string suction assembly 2 is used for sucking and moving the battery string 5.

[0038] The flux assembly 3 is used for applying flux on the welding ribbons at both ends of the battery string 5.

[0039] Specifically, in the embodiment, the battery string platform 1 can be connected as a conveying platform on the production line between the string welding machine and the overlap welding machine. The battery string 5 flowed out by the string welding machine is received by the battery string platform 1. The battery string suction assembly 2 can suck the battery string 5 on the battery string platform 1 and move the battery string 5 to the flux assembly 3. The flux assembly 3 contains flux which can be applied on the surface of the welding ribbons at both ends of the battery string 5, so as to complete the application of the flux.

[0040] The flux application device provided in the embodiment is arranged before the battery string 5 flows into the overlap welding machine. After the string making of the battery string 5 is completed, the flux application device of the utility model can be used to apply flux on the welding ribbons at both ends of the battery string 5. The battery string 5 with applied flux enters the overlap welding machine, and the overlap welding machine does not need to spray flux on the battery string 5, so that the flux crystallization in the overlap welding machine is avoided, the internal structure of the overlap welding machine is better protected, and the production efficiency is improved.

[0041] In some optional embodiments, the battery string suction assembly 2 includes a suction mechanism 2-1 and a moving mechanism which can adjust the position of the suction mechanism 2-1.

[0042] Specifically, as shown in Figure 2 and Figure 3 The battery string suction assembly 2 can be located above the battery string platform 1. Of course, according to the influence of factors such as site space, the position of the battery string suction assembly 2 can be adjusted appropriately, and the embodiment does not have special limitations.

[0043] The battery string suction assembly 2 comprises a suction mechanism 2-1 and a moving mechanism. The moving mechanism specifically comprises a translation mechanism 2-2 and a lifting mechanism 2-3. The suction mechanism 2-1 is used to suck the battery string 5 on the battery string platform 1. The translation mechanism 2-2 is fixedly connected with the suction mechanism 2-1 and can drive the suction mechanism 2-1 to perform a translation movement, so as to control the lateral position of the suction mechanism 2-1. That is, after the suction mechanism 2-1 sucks the battery string 5 on the battery string platform 1, the translation mechanism 2-2 drives the suction mechanism 2-1 to move towards the flux assembly 3, or after the solder strips at both ends of the battery string 5 are coated with flux, the translation mechanism 2-2 drives the suction mechanism 2-1 to move towards the battery string platform 1. The lifting mechanism 2-3 is fixedly connected with the suction mechanism 2-1 and can drive the suction mechanism 2-1 to perform a lifting movement, so as to control the longitudinal position of the suction mechanism 2-1. That is, when the battery string 5 is placed on the battery string platform 1, the lifting mechanism 2-3 drives the suction mechanism 2-1 to descend so that the suction mechanism 2-1 can suck the battery string 5, or when the suction mechanism 2-1 reaches above the flux assembly 3, the lifting mechanism 2-3 controls the suction mechanism 2-1 to descend, so that the solder strips at both ends of the battery string 5 are immersed in the flux inside the flux assembly 3, and after the flux coating is completed, the lifting mechanism 2-3 controls the suction mechanism 2-1 to ascend, so that the solder strips at both ends of the battery string 5 are separated from the flux.

[0044] It should be noted that the translation mechanism 2-2 and the lifting mechanism 2-3 proposed in the present embodiment can be realized by the prior art, and the structure of the translation mechanism 2-2 and the lifting mechanism 2-3 is not the point of creation of the present embodiment, therefore, the specific structure of the translation mechanism 2-2 and the lifting mechanism 2-3 will not be described in detail, Figure 3 The translation mechanism 2-2 and the lifting mechanism 2-3 shown are only used to show the position distribution of the overall device. Any structure or system capable of driving the suction mechanism 2-1 to perform a translation, lifting or other position control in the prior art can be appropriately applied to the present embodiment.

[0045] In some optional embodiments, the suction mechanism 2-1 comprises a support plate 2-1-1 and a suction disc 2-1-2. The support plate 2-1-1 is used to fix the suction disc 2-1-2, and the suction disc 2-1-2 is used to suck the battery string 5.

[0046] Specifically, the support plate 2-1-1 is located at the top of the suction mechanism 2-1 and is fixedly connected to the translation mechanism 2-2 and the lifting mechanism 2-3. The suction cup 2-1-2 is located below the support plate 2-1-1 and is fixedly connected to the support plate 2-1-1 through the fixing column 2-1-3. Generally speaking, the size of the battery string 5 varies according to different regulatory requirements. Battery strings 5 ​​with smaller size or lighter weight can be sucked by a single suction cup 2-1-2. However, for battery strings 5 ​​with larger size or heavier weight, it is necessary to increase the suction force between the suction cup 2-1-2 and the surface of the battery string 5 by increasing the number of suction cups 2-1-2 or increasing the suction area of ​​the suction cup 2-1-2. When there are multiple suction cups 2-1-2, in order to ensure uniform force on the battery cells, the suction cups 2-1-2 need to be evenly arranged at equal intervals below the support plate 2-1-1.

[0047] In some optional embodiments, the fixed column 2-1-3 can be designed as a retractable structure, and the extension and contraction of the fixed column 2-1-3 can be controlled by air pressure or hydraulic pressure. By designing the fixed column 2-1-3 as a retractable structure, the lifting mechanism 2-3 can be omitted or simplified to a certain extent. That is, the longitudinal position of the suction cup 2-1-2 can be adjusted by the extension and contraction of the fixed column 2-1-3, and the function of the lifting mechanism 2-3 can also be achieved.

[0048] In some optional embodiments, the suction structure may further be provided with a position detection unit 2 - 1 - 4 for detecting the position of the battery string 5 .

[0049] Specifically, position detection units 2-1-4 are provided at each end of the support column. The distance between the two position detection units 2-1-4 can be adjusted appropriately based on the length of the battery string platform 1. After the battery string 5 flows into the battery string platform 1, the position of the battery string 5 within the battery string platform 1 is detected by the position detection unit 2-1-4. When the battery string 5 reaches the preset position, the battery string suction assembly 2 is controlled to operate. The preset position is such that the center of the battery string 5 coincides with the center of the support plate 2-1-1. This ensures maximum uniformity of force applied to the suction cup 2-1-2 when sucking the battery string 5.

[0050] In some optional embodiments, the flux assembly 3 includes a flux pool 3 - 1 for containing flux.

[0051] Specifically, such as Figure 4As shown, the flux assembly 3 includes two flux pools 3-1, corresponding to the two ends of the battery string 5 respectively. The distance between the two flux pools 3-1 can be determined according to the size of the battery string 5, as long as the flux pools 3-1 can ensure that the two ends of the battery string 5 can be immersed in the flux pools 3-1. The two flux pools 3-1 are filled with flux. When the two ends of the battery string 5 are immersed in the flux pools 3-1, the flux can be coated on the surface of the two ends of the battery string 5, so as to realize the coating of the flux.

[0052] In some optional embodiments, a sponge is further arranged in the flux pool 3-1, which can improve the uniformity of the flux coating.

[0053] Specifically, in actual production process, the flux coated on the two ends of the battery string 5 is not the more the better, and only a certain amount of flux can be uniformly coated on the surface of the two ends of the battery string 5. Therefore, the sponge is arranged in the flux pool 3-1, and the sponge in the flux pool 3-1 can adsorb the flux. When the two ends of the battery string 5 are immersed in the flux pool 3-1, the flux adsorbed on the surface of the sponge can be coated on the two ends of the battery string 5, thereby improving the uniformity of the flux coating under the premise of ensuring the amount of flux.

[0054] In some optional embodiments, the flux assembly 3 further includes a flux tank 3-2 for storing and supplementing the flux to the flux pool 3-1.

[0055] Specifically, as the production process proceeds, the flux in the flux pool 3-1 will gradually decrease, so it needs to be supplemented in time. The flux tank 3-2 is in communication with the two flux pools 3-1 through the pipeline 3-3, and a pressure pump is arranged in the flux tank 3-2, which can pump the flux stored in the flux tank 3-2 to the flux pool 3-1, thereby effectively supplementing the flux in the flux pool 3-1.

[0056] In some optional embodiments, the flux coating device further includes a detection mechanism 4 for EL detection of the battery string 5 coated with flux. The detection mechanism 4 can be arranged on the moving path of the battery string 5, so as to perform EL detection after the battery string 5 is coated with flux. The number of the detection mechanism 4 is also two, corresponding to the two ends of the battery string 5 respectively. The distance between the two detection mechanisms 4 can be determined according to the size of the battery string 5, as long as the EL detection of the battery string 5 coated with flux can be ensured.

[0057] EL detection, or electroluminescence (EL) detection, is a detection technique based on the phenomenon of electroluminescence, mainly used for the detection of internal defects in solar cells or battery assemblies. During EL detection, a forward current equal to or slightly higher than the short-circuit current (Isc) of the battery string is first applied to the battery string. This current excites the electrons inside the battery string, causing them to transition to a high-energy state. Under the action of the current, the electrons inside the battery string begin to emit light, mainly infrared light with a wavelength of about 1000-1100 nanometers. These infrared lights contain information about the internal structure and defects of the battery string.

[0058] In this embodiment, the detection mechanism 4 can be implemented using an existing EL detector, which can be purchased directly. The EL detector is equipped with a high-sensitivity camera or image sensor that can capture the infrared light emitted from the battery string. Since different defect types affect the intensity and pattern of the emitted light, the captured light image can clearly show the internal structure and defects of the battery string. By using specific image processing and analysis techniques, the captured electroluminescence image can be processed and analyzed to identify defects such as cracks, virtual welding, debris, broken pieces, black core, black edge, and broken grid in the battery string. This process is non-destructive and does not cause any damage to the battery string. After processing and analysis, the EL detector outputs the detection results in the form of images or reports to the user. The user can evaluate the quality of the battery string or further process it based on the detection results.

[0059] In some alternative embodiments, the flux coating device can be integrated into the entire photovoltaic battery assembly production line. Therefore, the battery string platform 1 can be designed as a platform structure with conveying function, which can be implemented by using a conveyor belt or other conveying forms. On the one hand, it can receive the battery string 5 discharged from the string welding machine, and on the other hand, it can convey the battery string 5 coated with flux to the lap welding machine to improve production efficiency.

[0060] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application also intends to include these modifications and variations.

Claims

1. A flux applicator characterized by, The application relates to a battery string coating device. The battery string coating device comprises: a battery string platform for placing a battery string, the battery string being provided with solder strips at two ends; a flux assembly arranged beside the battery string platform and containing flux inside; a battery string suction assembly comprising a suction mechanism and a moving mechanism; the suction mechanism is used for detecting the position of the battery string on the battery string platform and sucking the battery string when the battery string is in a specified position; 2. The flux applicator device of claim 1, wherein, the moving mechanism is used for controlling the position of the suction mechanism, moving the battery string into the flux assembly and immersing the solder strips at the two ends of the battery string in the flux, and the flux is coated on the surfaces of the solder strips at the two ends of the battery string. The moving mechanism comprises: a translation mechanism fixedly connected with the suction mechanism and used for controlling the lateral position of the suction mechanism; 3. The flux applicator device of claim 2, wherein, a lifting mechanism fixedly connected with the suction mechanism and used for controlling the longitudinal position of the suction mechanism. The suction mechanism comprises: a support plate located at the top of the suction mechanism and fixedly connected with the translation mechanism and the lifting mechanism; 4. The flux applicator device of claim 3, wherein a suction disc located below the support plate and fixedly connected with the support plate through a fixed column.

5. The flux applicator apparatus of claim 3, wherein, The suction disc is a plurality of suction discs arranged below the support plate at equal intervals.

6. The flux applicator apparatus of claim 1, wherein, The suction mechanism further comprises a position detection unit located at the two ends of the support plate and used for detecting the position of the battery string.

7. The flux applicator device of claim 6, wherein, The flux assembly comprises two flux pools corresponding to the solder strips at the two ends of the battery string respectively, a sponge is arranged in each flux pool, flux is contained in each flux pool, and the flux is adsorbed on the surface of the sponge.

8. The flux applicator apparatus of claim 1, wherein, The flux assembly further comprises a flux tank containing flux, the flux tank is in communication with the two flux pools through pipelines, a pressure pump is arranged in the flux tank, and the pressure pump is used for pumping the flux in the flux tank into the flux pools.

9. The flux applicator apparatus of claim 1, wherein, The flux coating device further comprises a detection mechanism arranged on the moving path of the battery string, and the detection mechanism is used for performing EL detection on the battery string coated with flux. A conveying belt is arranged on the battery string platform.

Images