A high optical utilization rate tinned photovoltaic welding ribbon device and processing method

Abstract

The present invention relates to the field of photovoltaic technology, and discloses a high optical utilization tin-plated photovoltaic welding strip device and a processing method, wherein the device comprises a welding table, a rotating adsorption component is arranged at the center of the welding table, a cylindrical loading table and a cylindrical unloading table are arranged equidistantly in the circumferential direction of the outer circle of the rotating adsorption component, the cylindrical loading table and the cylindrical unloading table are arranged at intervals, a square cavity is arranged at the center of the cylindrical loading table, and blowing holes obliquely upward are arranged equidistantly on the circumferential wall of the square cavity, and a feeding channel is arranged below the welding table at the position of the cylindrical loading table. The device and the processing method divide the adsorption process of the battery plate by using a lifting spring and a support plate in combination with oblique air holes, thereby ensuring that no overlapping occurs when the battery cells are adsorbed, and by using a welding strip stretching component, no offset occurs when the welding strip is attached, and the attachment distance between the two welding strips can be adjusted.

Description

Technical Field

[0001] The invention relates to the field of photovoltaic technology, and in particular to a high optical utilization rate tin-plated photovoltaic welding strip device and a processing method. Background Art

[0002] As a clean energy, solar energy has the benefit of being inexhaustible. At present, people mainly use solar energy for solar power generation. Solar panels are indispensable devices in the use of solar power generation. Solar panels in the prior art are made of single crystal silicon wafers or polycrystalline silicon wafers, and tin-coated strips are welded on the silicon wafers. Since the crystalline silicon wafers are relatively thin and brittle, the commonly used welding machines cannot weld the tin-coated strips. From the welding principle, the welding methods can be summarized into ultrasonic welding, infrared welding, hot air welding, hot plate welding, electromagnetic induction welding, laser welding, etc. The welding of solar cells is achieved by a welding machine with a certain welding method. The solar cell and the welding strip are accurately positioned in the welding environment, and the welding strip is melted by a certain welding method. After cooling, the welding is completed.

[0003] In the prior art, a solar cell module is formed by welding multiple battery strings through busbars, and then laminating EVA, backplane, and organic glass plates at high temperature; wherein the battery string is connected to the solar cell by welding ribbons connected to the solar cell to connect the cells into a string to achieve the technical requirement of increasing the output voltage of the solar cell. Traditional manual welding is done by manual single-piece welding first, and then string welding. There are many processes and many people required. Due to the influence of manual skills, the external dimensions of the battery string are unstable, and it is easy to have cold welding and leaking welding. At the same time, the battery cells are prone to cracks and fragments due to inconsistent internal stress. Patent No. CN113579593B discloses a single-chip mechanism for welding multi-main-grid solar cells, including a mounting frame, a side wall of the mounting frame is connected to a flux coating mechanism, a bottom of the mounting frame is slidably connected to a pressure welding belt mechanism, a top of the mounting frame is fixedly connected to a cutting knife module, a top of the mounting frame is slidably connected to an electric welding platform, a side of the electric welding platform away from the pressure welding belt mechanism is provided with a pulling welding belt module, and a side wall of the mounting frame is connected to a driving device for driving the pulling welding belt module to move; an infrared welding lamp module is fixedly connected to one end of the mounting frame away from the flux coating mechanism, and a flipping device for flipping the battery cell is provided on the outside of the infrared welding lamp module; a fixed frame is provided on one side of the mounting frame, a jacking and transporting mechanism is fixedly connected to the top of the fixed frame, a mounting seat is connected to the top of the fixed frame, a movable battery cell transporting module is connected to the side wall of the mounting seat, a fixture platform is connected to the top of the fixed frame, and a correction device for correcting deviation is provided on one side of the battery cell transporting module. During the battery cell loading process, a negative pressure adsorption device is usually required to adsorb the battery cells. However, since the battery cells are very thin, it is often easy to adsorb multiple cells at a time during the adsorption process, thereby wasting raw materials. When attaching the welding ribbon to the battery cell, two welding ribbons are usually used for connection. The distance between the two pulled-out welding ribbons is generally fixed and cannot be changed. This means that the device can only weld battery cells of the same size. When welding battery cells of different sizes, they need to be disassembled and rearranged. At the same time, the welding ribbon is prone to loosening when attached and cannot be accurately positioned.

[0004] The photovoltaic panels are smooth before welding. If traditional adsorption is used, the top photovoltaic panel on the lower glass plate may be adsorbed by the lower plate and cannot be adsorbed. It is also possible that the two plates are adsorbed together, causing both plates to be adsorbed to the welding line at the same time. Sometimes the top photovoltaic panel is adsorbed, causing the lower plate to move unexpectedly. Summary of the invention

[0005] 1. Technical issues to be solved

[0006] In view of the shortcomings of the prior art, the present invention provides a high optical utilization tin-plated photovoltaic welding tape device and processing method, which has the functions of accurately adsorbing battery cells, can quickly realize loading and unloading, and can ensure that the welding tape does not shift during the attachment process, and ensure that the welding tape does not shift during the adsorption process of the photovoltaic panel. It solves the problems of adsorbing multiple battery cells at a time, shifting during the attachment process of the welding tape, and the need to reassemble the welding tape stretching assembly for welding battery cells of different sizes.

[0007] (II) Technical solution

[0008] In order to achieve the above-mentioned purpose of accurately adsorbing solar cells, being able to quickly load and unload materials, and ensuring that the soldering tape does not deviate during the attachment process, and that the photovoltaic panel does not deviate during the adsorption process, the present invention provides the following technical solutions: a high optical utilization tinned photovoltaic soldering tape device, comprising a welding table, a rotating adsorption assembly is arranged at the center of the welding table, a cylindrical loading table and a cylindrical unloading table are equidistantly arranged in the circumferential direction of the outer ring of the rotating adsorption assembly, the cylindrical loading table and the cylindrical unloading table are arranged at intervals, a square cavity is arranged at the center of the cylindrical loading table, and blowing holes obliquely upward are equidistantly arranged on the circumferential wall of the cavity, a feeding channel is arranged at a corresponding position below the welding table at the position of the cylindrical loading table, a solar cell support plate is arranged directly below the feed channel through a sliding rod and a lifting spring, a soldering tape assembly is arranged between the cylindrical unloading table and the rotating adsorption assembly, the outer ring of the cylindrical unloading table is connected to a unloading conveyor belt, and a soldering tape stretching assembly is arranged at the connecting part of the unloading conveyor belt and the cylindrical unloading table.

[0009] Preferably, the welding strip stretching assembly comprises a displacement slide rod, a sensing bar is arranged at the end of the displacement slide rod, a slide rail is arranged above the sensing bar, and welding strip clamps are arranged at left and right ends of the slide rail.

[0010] Preferably, the welding strip clamp includes a sliding cavity, the inner walls on the left and right sides of the sliding cavity are connected to the clamping block through a sliding groove, a magnetic block is arranged at the bottom of the clamping block, a tension spring is arranged at the center of the sliding cavity, the end of the tension spring is connected to the clamping block, and a magnet is arranged on the unloading conveyor belt at the extreme displacement position corresponding to the displacement slide rod.

[0011] Preferably, a battery cell placing groove is provided in the center of the battery cell tray, a tray pulling back assembly is provided on the lower end surface, the lifting spring is sleeved on the sliding rod, there are four sliding rods and lifting springs, which are respectively provided directly below the four corners of the feed channel, and the outer circle size of the battery cell tray is smaller than the inner hole diameter of the feed channel.

[0012] Preferably, a hot pressing welding assembly is provided on the unloading conveyor belt.

[0013] Preferably, a feed hole is provided on the feed channel, and the feed hole is connected to the feed conveyor belt.

[0014] Preferably, the rotary adsorption assembly comprises a central turntable, an adsorption plate connecting member is provided on the upper end of the central turntable via a rotating member, and an end of the adsorption plate connecting member is connected to the adsorption plate.

[0015] Preferably, at least two rows of blowing holes are equidistantly arranged in the vertical direction of the cylindrical loading platform, an oblique air release chamfer is provided at the outlet above the blowing holes, and a limiting block is provided at the upper end of the oblique air release chamfer.

[0016] Preferably, the number of the cylindrical loading platform and the number of the cylindrical unloading platform are both four.

[0017] The processing method comprises:

[0018] Step 1: Load the solar cells through the lifting assembly and the blowing holes on the cylindrical loading table. Every time a cell is blown up, the total weight of the cells on the cell support plate is reduced by a fixed amount, and the lifting spring is lifted by a fixed distance.

[0019] Step 2: Loading and unloading solar cells by rotating the adsorption assembly;

[0020] Step 3: Attach the soldering ribbon to the battery cell through the soldering ribbon stretching assembly;

[0021] Step 4: Melt and weld the solder strip through hot pressing welding assembly.

[0022] (III) Beneficial effects

[0023] Compared with the prior art, the present invention provides a high optical utilization rate tinned photovoltaic welding ribbon device and processing method, which has the following beneficial effects:

[0024] 1. The high optical utilization rate tinned photovoltaic welding ribbon device uses a cylindrical loading platform in conjunction with a material support plate and a lifting spring at the lower end of the lifting channel, so that the placed battery cell stack can be lifted to a corresponding height by the spring and then blown up and separated by the oblique blowing holes on the wall of the cylindrical loading platform, and then transferred to the cylindrical unloading platform by a rotating adsorption component. Through the use of the lifting spring, after each battery cell is blown up, the total weight of the entire battery cell stack is reduced by a part, so that the lifting spring is lifted up a certain distance after the force is reduced, thereby ensuring that the battery cell stack is always kept in a state where the top battery cell can be blown up by the blowing hole, which makes it possible to realize automatic loading of the battery cells without arranging an extra driving device at the feeding end.

[0025] 2. The high optical utilization tin-plated photovoltaic welding tape device uses a welding tape stretching assembly in conjunction with a welding tape assembly. After the welding tape clamp is displaced to the extreme position through the displacement slide rail, the magnetic block at the lower end of the clamping block and the magnetic block at the corresponding position of the unloading conveyor belt attract each other, so that the clamping block is adsorbed onto the unloading conveyor belt, ensuring that the welding tape will not shift during the welding tape attachment process, so that the welding tape can be accurately attached to a fixed position. At the same time, the welding tape clamp in the welding tape stretching assembly can slide through the slide rail on the sensing bar to change the position between the two welding tapes, so that the device can quickly attach welding tapes to battery cells of different sizes.

[0026] 3. The high optical utilization tin-plated photovoltaic welding strip device is provided with a blowing hole in the vertical direction of the cylindrical loading platform, and an oblique air-release chamfer is provided at the outlet above the blowing hole. In combination with the setting of a limit block, the oblique air-release chamfer can ensure that the blown-up solar cell is stably suspended at the chamfer mouth, and the gas is released from the chamfer mouth, thereby ensuring that the solar cell does not tilt or shake. At the same time, the limit block can ensure accurate positioning when the solar cell is adsorbed.

[0027] 4. The processing method of the high optical utilization rate tinned photovoltaic welding ribbon device adopts a cylindrical loading platform and a cylindrical unloading platform arranged at intervals, and cooperates with the use of a rotary adsorption component, so that the rotary adsorption component adsorbs a battery cell or puts down a battery cell every time it rotates, thereby maximizing the energy utilization efficiency of the entire rotary adsorption component, avoiding the idle rotation of the rotary adsorption platform, reducing energy loss, and the use of four unloading conveyor belts greatly increases the processing efficiency of the battery cell. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 A schematic diagram of the three-dimensional structure of a tin-plated photovoltaic ribbon device with high optical utilization rate;

[0029] Figure 2 A front view of a tinned photovoltaic ribbon device with high optical utilization;

[0030] Figure 3 It is a schematic diagram of the three-dimensional structure of a high optical utilization rate tinned photovoltaic welding ribbon device after removing the unloading conveyor belt;

[0031] Figure 4 A schematic diagram of the three-dimensional structure of a feeding channel of a tin-plated photovoltaic ribbon device with high optical utilization rate;

[0032] Figure 5 It is a schematic diagram of the three-dimensional structure of a cylindrical loading platform of a tinned photovoltaic ribbon device with high optical utilization rate;

[0033] Figure 6 A cross-sectional view of a cylindrical loading platform of a high optical utilization tinned photovoltaic ribbon device;

[0034] Figure 7 It is a schematic diagram of the three-dimensional structure of a soldering ribbon clamping part of a tinned photovoltaic soldering ribbon device with high optical utilization.

[0035] In the figure: 1-welding table, 2-rotating adsorption component, 3-cylindrical loading table, 4-cylindrical unloading table, 5-feeding channel, 6-welding strip component, 7-unloading conveyor belt, 8-hot pressing welding component, 9-welding strip stretching component, 21-center turntable, 22-rotating part, 23-adsorption plate connecting part, 24-adsorption plate, 31-square cavity, 32-blowing hole, 33-solar cell, 34-oblique air release chamfer, 35-limiting block, 51-feeding hole, 52-cell support plate, 53-lifting spring, 54-sliding rod, 55-support plate pull-back assembly, 91-displacement sliding rod, 92-sensing strip, 93-welding strip clamping part, 521-cell placement groove, 931-sliding groove, 932-clamping block, 933-magnetic block, 934-stretching spring. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] See also Figure 1-2 A high optical utilization tinned photovoltaic welding ribbon device comprises a welding platform 1, a rotating adsorption component 2 is arranged at the center of the welding platform 1, a cylindrical loading platform 3 and a cylindrical unloading platform 4 are arranged equidistantly in the circumferential direction of the outer circle of the rotating adsorption component 2, the cylindrical loading platform 3 and the cylindrical unloading platform 4 are arranged at intervals, a square cavity 31 is arranged at the center of the cylindrical loading platform 3, and blowing holes 32 obliquely upward are equidistantly arranged on the circumferential wall of the cavity, a feeding channel 5 is arranged at a corresponding position of the cylindrical loading platform 3 below the welding platform 1, a battery cell support plate 52 is arranged directly below the feeding channel 5 through a sliding rod 54 and a lifting spring 53, a welding ribbon component 6 is arranged between the cylindrical unloading platform 4 and the rotating adsorption component 2, the outer circle of the cylindrical unloading platform 4 is connected to a unloading conveyor belt 7, and a welding ribbon stretching component 9 is arranged at the connecting part of the unloading conveyor belt 7 and the cylindrical unloading platform 4.

[0038] The rotating adsorption component 2 is used to transfer the battery cell to the welding table 1 after adsorption, and the cylindrical loading table 3 and the cylindrical unloading table 4 are used to place the battery cell. The setting of the square cavity 31 and the blowing hole 32 can easily blow up the battery cell through the airflow and then split it into a single piece. The setting of the feed channel 5 can easily feed the battery cell from the outside to the welding table 1. The setting of the battery cell support plate 52 can conveniently support and fix the battery cell to ensure the stability and accuracy of welding. The setting of the solder strip assembly 6 can conveniently fix the tinned solder strip on the battery cell, and the setting of the solder strip stretching assembly 9 can conveniently stretch the solder strip to ensure the stability and strength of welding.

[0039] By setting the rotating adsorption component 2, the battery cell can be conveniently adsorbed on the welding table 1, which improves the efficiency and stability of the operation. By setting the square cavity 31 and the blowing hole 32, the battery cell can be conveniently placed on the cylindrical loading table 3, and the battery cell can be divided into a single piece state, which improves the efficiency and accuracy of the operation. By setting the feed channel 5, the battery cell can be conveniently fed from the outside to the welding table 1, which improves the convenience and efficiency of the operation. By setting the battery cell support plate 52, the battery cell can be conveniently supported and fixed. By setting the solder ribbon component 6 and the solder ribbon stretching component 9, the tinned solder ribbon can be conveniently fixed on the battery cell, and the stability and strength of the welding can be ensured.

[0040] The unloading conveyor belt 7 is provided with a hot pressing welding assembly 8. The hot pressing welding assembly 8 can fix the welded cell on the photovoltaic welding belt, ensuring the stability and strength of the welding, while improving the adhesion and fixing effect of the cell on the photovoltaic welding belt. The feeding channel 5 is provided with a feeding hole 51, and the feeding hole 51 is connected to the feeding conveyor belt.

[0041] See also Figure 3 , the welding strip stretching assembly 9 includes a displacement slide bar 91, through which the welding strip can be stretched and positioned. The end of the displacement slide bar 91 is provided with a sensing bar 92, which can be used to detect the stretched length and position of the welding strip. A slide rail is provided above the sensing bar 92, and welding strip clamps 93 are provided on the left and right ends of the slide rail. The welding strip clamps 93 can be used to clamp and fix the welding strip to ensure the stability and strength of welding. Through the setting of the welding strip stretching assembly 9, the welding strip can be easily stretched and its position can be fixed, ensuring the stability and strength of welding. Through the setting of the sensing bar 92 and the welding strip clamp 93, the stretched length of the welding strip can be accurately controlled and fixed, improving the efficiency and accuracy of the operation. Through the setting of the displacement slide bar 91, the stretched length and position of the welding strip can be conveniently adjusted, improving the convenience and flexibility of operation.

[0042] See also Figure 4, a cell placement groove 521 is provided at the center of the cell support plate 52, which can conveniently place and fix the cell. The lifting spring 53 is sleeved on the slide bar 54, which can conveniently realize the lifting action of the cell support plate 52. The number of the slide bar 54 and the lifting spring 53 is four, which are respectively arranged directly below the four corners of the feed channel 5, which can ensure the stability and balance of the cell support plate 52 during the lifting process. The outer circle size of the cell support plate 52 is smaller than the inner hole diameter of the feed channel 5, and the cell can be conveniently fed from the feed channel 5 to the cylindrical loading platform through the cell support plate 52, avoiding interference between the cell support plate 52 and the feed channel 5 during the lowering process. Through the setting of the cell placement groove 521, the cell can be conveniently placed on the cell support plate 52, which improves the efficiency and convenience of the operation. Through the setting of the lifting spring 53 and the slide bar 54, the lifting action of the cell support plate 52 can be conveniently realized, which improves the flexibility and efficiency of the operation. The arrangement of the four slide bars 54 and the lifting spring 53 can ensure the stability and balance of the cell support plate 52 during the lifting process, thereby improving the accuracy and safety of the operation. The arrangement of the outer diameter of the cell support plate 52 being smaller than the inner hole length of the feed channel 5 improves the efficiency and convenience of the operation.

[0043] See also Figure 5-6 In the vertical direction of the cylindrical loading platform 3, at least two rows of blowing holes 32 are equidistantly arranged, and an oblique air release chamfer 34 is arranged at the outlet above the blowing hole 32. A limiting block 35 is arranged at the upper end of the oblique air release chamfer 34. Through the setting of the oblique air release chamfer 34, the blown solar cell 33 is stably suspended at the chamfer mouth, and the gas is released from the chamfer mouth to ensure that the solar cell does not tilt and shake. At the same time, the limiting block can ensure accurate positioning when the solar cell 33 is adsorbed, and the air flow introduced therein Figure 6 The solar cell 33 is lifted upward in the direction indicated by the middle arrow. After it is lifted up to the oblique air release chamfer 34, most of the gas is released from the chamfer, so that the solar cell panel 33 is no longer facing upward, and then it is transferred to the welding ribbon attachment position through the adsorption component for welding ribbon attachment. The gas introduced is a hot air flow, so that the solar cell 33 is preheated before the welding ribbon is attached. Therefore, the welding ribbon can be quickly adhered to the solar cell 33 after it contacts the welding ribbon.

[0044] The cylindrical loading platform 3 is provided with at least two rows of blowing holes 32 at equal intervals in the vertical direction, which can conveniently blow up the battery sheet through the airflow and then split it into single sheets, and blow the battery sheet to the adsorption height of the adsorption plate 24, thereby improving the efficiency and stability of the operation. At the same time, the setting of the blowing holes 32 can also conveniently remove impurities and dust on the battery sheet, ensuring the cleanliness and accuracy of welding. The cylindrical loading platform 3 and the cylindrical unloading platform 4 are both four in number, realizing multi-station processing.

[0045] See also Figure 7 The welding strip clamp 93 includes a sliding cavity, the inner walls on the left and right sides of the sliding cavity are connected to the clamp block 932 through a slide groove 931, a magnetic block 933 is arranged at the bottom of the clamp block 932, a tension spring 934 is arranged at the center of the sliding cavity, the end of the tension spring 934 is connected to the clamp block 932, and a magnet is arranged on the unloading conveyor belt 7 at the limit displacement position corresponding to the displacement slide bar 91. Through the design of the sliding cavity and the slide groove 931, the stable movement and positioning of the clamp block 932 can be achieved, and the accuracy and stability of the operation are improved. Through the setting of the magnetic block 933 and the magnetic force, the adsorption force and stability of the welding strip can be increased, and the reliability and safety of the operation are improved. Through the design of the tension spring 934, the tension force and reset force of the welding strip can be provided, which facilitates the stretching and fixing process of the welding strip. By arranging the magnetic block 933 on the unloading conveyor belt 7, the welding strip can be easily adsorbed on the unloading conveyor belt 7 by magnetic force, which improves the efficiency and stability of the operation and ensures the stable attachment of the welding strip. The rotary adsorption assembly 2 includes a central turntable 21 , and an adsorption plate connecting member 23 is provided at the upper end of the central turntable 21 through a rotating member 22 . The end of the adsorption plate connecting member 23 is connected to the adsorption plate 24 , so as to facilitate the use of the welding table 1 .

[0046] The processing method comprises:

[0047] Step 1: Load the solar cell 33 by means of the lifting assembly in cooperation with the blowing hole 32 on the cylindrical loading platform 3. Each time a cell is blown up, the total weight of the cell on the cell support plate 52 is reduced by a fixed amount, and the lifting spring 53 is lifted by a fixed distance.

[0048] Step 2: Loading and unloading the solar cell 33 by rotating the adsorption assembly 2;

[0049] Step 3: attaching the soldering tape to the battery cell through the soldering tape stretching assembly 9;

[0050] Step 4: Melt and weld the welding strip through the hot pressing welding assembly 8.

[0051] During operation, the solar cell 33 is loaded by the lifting assembly in cooperation with the blowing holes 32 on the cylindrical loading platform 3, so that the automatic loading of the cell can be realized, and the loading efficiency and stability are improved. At the same time, after each cell is blown up, the total weight of the cell on the cell support plate 52 is fixedly reduced, and the lifting spring 53 is lifted a fixed distance, which can ensure the accuracy and stability of the cell loading, and reduce the installation of redundant driving components, saving energy consumption. The loading and unloading of the solar cell 33 is transferred by the rotating adsorption assembly 2, so that the cell can be transferred quickly and stably, and the efficiency and convenience of the operation are improved. The cell is attached with the soldering tape by the soldering tape stretching assembly 9, which can ensure the accuracy and tight attachment of the soldering tape, and improve the quality and stability of the welding. The soldering tape is melted and welded by the hot pressure welding assembly 8, so that the welding can be completed efficiently and with high quality, and the stability and strength of the welding can be improved.

[0052] Working principle: The working process of the whole device can be divided into the loading and unloading of battery cells and the attaching process of welding strips. The tray pull-back assembly 55 is manually controlled to pull the tray down to the corresponding position, and then the stacked battery cells are transferred from the feed hole 51 to the battery cell placement groove 521 on the battery cell tray 52 through the feeding conveyor belt. The tray pull-back assembly 55 is released, and the lifting spring 53 at the lower end of the battery cell tray 52 lifts the battery cell. The top battery cell of the stacked battery cells is separated from the battery cell stack by the wind blown out by the oblique blowing hole 32 in the cylindrical feeding platform 3, and is blown upward, wherein the oblique blowing hole 32 is blown upward, and the ... The blowing holes 32 can be arranged in two to three rows, and each row is spaced apart, so that the blowing spacing between each row can be better controlled, so that a battery cell is blown up between the blowing holes 32 in each row, thereby ensuring that when the battery cells blown up by the blowing holes 32 in the uppermost row are sucked up by the adsorption plate 24, multiple cells will not be adsorbed at one time. After the adsorption plate 24 is adsorbed to the battery cell, it is lifted up by the rotating part 22 and rotated 45°, and then the rotating part 22 is rotated downward to return to the horizontal position to place the battery cell on the cylindrical unloading table 4. Before the first battery cell is placed, the welding strip is pulled The stretching assembly 9 pulls out the left and right welding strips from the welding strip assembly 6. After the welding strip stretching assembly 9 slides to the limit position of the displacement slide bar 91, the magnetic block 933 at the lower end of the welding strip clamping member 93 corresponds to the magnetic block 933 on the unloading conveyor belt 7, and adsorbs and fits with each other, so that the pulled welding strip is attached to a fixed position. At this time, the battery cell is put down by the adsorption plate 24 and falls on the two pulled welding strips. After the unloading conveyor belt 7 rolls for a distance, the welding strip is pulled out again and attached to the top of the battery cell. At this time, the upper and lower sides of the first battery cell put in are both attached with welding strips, and the unloading conveyor belt 7 is located in the circular after rolling for a distance. A section of soldering tape connected to the upper surface of the first battery cell is reserved at the position of the column unloading platform 4, and then the second battery cell is put down through the rotating adsorption component 2, and this cycle is repeated. The battery cell with the soldering tape attached is pressed and melted onto the battery cell through the hot pressure welding component 8, completing the entire working process of the device. The rotating adsorption component 2 is used in conjunction with the cylindrical loading platform 3 and the cylindrical unloading platform 4, so that after the rotating adsorption component 2 rotates 45°, a battery cell is put down on each unloading conveyor belt 7, so that the rotating adsorption component 2 will not have extra idle strokes, thereby maximizing the use of energy.

[0053] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0054] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high optical utilization rate tinned photovoltaic ribbon welding device, comprising a welding platform (1), wherein a rotating adsorption component (2) is arranged at the center of the welding platform (1), characterized in that: A cylindrical loading platform (3) and a cylindrical unloading platform (4) are arranged equidistantly in the circumferential direction of the outer ring of the rotating adsorption component (2); the cylindrical loading platform (3) and the cylindrical unloading platform (4) are arranged at intervals; a square cavity (31) is arranged at the center of the cylindrical loading platform (3); and blowing holes (32) obliquely upward are arranged equidistantly on the circumferential wall of the square cavity (31); a feeding channel (5) is arranged below the welding platform (1) at a corresponding position of the cylindrical loading platform (3); and a battery cell support plate (52) is arranged directly below the feeding channel (5) via a slide rod (54) and a lifting spring (53); A welding strip assembly (6) is arranged between the cylindrical unloading platform (4) and the rotating adsorption assembly (2); the outer ring of the cylindrical unloading platform (4) is connected to the unloading conveyor belt (7); and a welding strip stretching assembly (9) is arranged at the connection portion between the unloading conveyor belt (7) and the cylindrical unloading platform (4); An oblique air release chamfer (34) is provided at the outlet above the air blowing hole (32), and a limiting block (35) is provided at the upper end of the oblique air release chamfer (34).

2. A high optical utilization rate tinned photovoltaic ribbon device according to claim 1, characterized in that: The welding strip stretching assembly (9) comprises a displacement slide bar (91), an end of the displacement slide bar (91) is provided with a sensing bar (92), a slide rail is provided above the sensing bar (92), and welding strip clamping parts (93) are provided at left and right ends of the slide rail.

3. A high optical utilization rate tinned photovoltaic ribbon device according to claim 2, characterized in that: The welding strip clamp (93) comprises a sliding cavity, the inner walls on the left and right sides of the sliding cavity are connected to the clamping block (932) through a sliding groove (931), a magnetic block (933) is arranged at the bottom of the clamping block (932), a tension spring (934) is arranged at the center of the sliding cavity, the end of the tension spring (934) is connected to the clamping block (932), and a magnet is arranged on the unloading conveyor belt (7) at the extreme displacement position corresponding to the displacement slide rod (91).

4. A high optical utilization rate tinned photovoltaic ribbon device according to claim 1, characterized in that: The center of the cell support plate (52) is provided with a cell placement groove (521), and the lower end surface is provided with a support plate pull-back assembly (55). The lifting spring (53) is sleeved on the slide bar (54). There are four slide bars (54) and lifting springs (53), which are respectively arranged directly below the four corners of the feed channel (5). The outer circle size of the cell support plate (52) is smaller than the inner hole diameter of the feed channel (5).

5. The high optical utilization rate tinned photovoltaic ribbon device according to claim 1, characterized in that: A hot pressing welding assembly (8) is provided on the unloading conveyor belt (7).

6. A high optical utilization rate tinned photovoltaic ribbon device according to claim 1, characterized in that: The feed channel (5) is provided with a feed hole (51), and the feed hole (51) is connected to a feed conveyor belt.

7. A high optical utilization rate tinned photovoltaic ribbon device according to claim 1, characterized in that: The rotary adsorption assembly (2) comprises a central turntable (21), an adsorption plate connecting member (23) being arranged at the upper end of the central turntable (21) via a rotating member (22), and an end of the adsorption plate connecting member (23) being connected to an adsorption plate (24).

8. The high optical utilization rate tinned photovoltaic ribbon device according to claim 1, characterized in that: At least two rows of blowing holes (32) are evenly spaced in the vertical direction of the cylindrical loading platform (3).

9. The high optical utilization rate tinned photovoltaic ribbon device according to claim 1, characterized in that: The number of the cylindrical loading platform (3) and the number of the cylindrical unloading platform (4) are both four.

10. A processing method for a tin-plated photovoltaic ribbon device with high optical utilization rate, applied to a tin-plated photovoltaic ribbon device with high optical utilization rate as claimed in claim 1, characterized in that: The processing method comprises: Step 1: The solar cell sheets (33) are loaded by means of the lifting assembly in cooperation with the blowing holes (32) on the cylindrical loading platform (3). Each time a solar cell sheet (33) is blown up, the total weight of the solar cells on the solar cell support plate (52) is fixedly reduced by a portion, and the lifting spring (53) is lifted by a fixed distance; Step 2: loading and unloading the solar cell sheets (33) by rotating the adsorption component (2); Step three: attaching the soldering ribbon to the solar cell sheet (33) using a soldering ribbon stretching assembly (9); Step 4: Melt and weld the welding strip using a hot pressing welding assembly (8).

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