Laser-induced sintering equipment for double batteries
By designing a dual-piece laser-induced sintering equipment, the technical difficulties of laser-induced sintering of dual-half solar cells were solved, and efficient and reliable sintering effects and reasonable equipment structure were achieved.
Patent Information
- Application Number
- CN202420983275.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-08
- Publication Date
- 2025-02-07
- Estimated Expiration
- 2034-05-08
AI Technical Summary
The prior art has failed to effectively solve the problem of how to perform laser-induced sintering of half-piece solar cells in two half-piece solar cells.
A double-sheet battery laser-induced sintering equipment was designed, including a double-sheet loading conveyor belt module, a loading arm module, a rotary processing table module, a loading arm module and a loading conveyor belt module, combined with laser processing The module and the electrical input module realize the synchronous transmission of dual half-piece solar cells and laser-induced sintering.
The laser-induced sintering of double half-piece solar cell cells is realized, the equipment structure is designed reasonably, the applied voltage structure is simple and reliable, the deviation correction device ensures accurate contact of the conductive parts, and the variable distance module adjusts the battery cell spacing, improving processing efficiency and quality.
Smart Images
Figure CN222442181U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of photovoltaic cell sheets, and in particular relates to a double-sheet cell laser-induced sintering device. Background Art
[0002] In order to reduce the contact resistance, laser induced sintering technology can be used. The laser excites the battery carriers and directs them to flow and form a loop under the action of the reverse voltage of the external electric field. When the loop current flows through the metal-semiconductor interface, a more obvious thermal effect is generated due to the large contact resistance between the metal and the semiconductor. The heat can further promote the mutual diffusion of the metal and the semiconductor, thereby obtaining excellent contact characteristics after sintering.
[0003] However, there is no prior art on how to perform laser induced sintering of double half-cell solar cells. Utility Model Content
[0004] The utility model aims to solve at least one problem existing in the prior art. To this end, the utility model adopts the following technical solution.
[0005] A double-chip battery laser induced sintering device, comprising a double-chip feeding conveyor belt module, a double-chip feeding rotating arm module, a double-chip rotating processing table module, a double-chip unloading rotating arm module, a double-chip unloading conveyor belt module, and a laser processing module and an electric input module arranged at a processing station of the double-chip rotating processing table module; wherein the double-chip feeding conveyor belt module is arranged along a first direction, comprises two feeding belt pulley groups arranged at intervals along a second direction, and a feeding drive motor driving a driving wheel of the feeding belt pulley group to rotate, and a half-chip battery sheet is placed on each feeding belt pulley group, so that two half-chip battery sheets are Synchronously convey along the first direction; the double-piece unloading conveyor belt module is arranged along the first direction, including two unloading belt pulley groups arranged at intervals along the second direction, and an unloading drive motor that drives the driving wheel of the unloading belt pulley group to rotate, and a half-piece battery cell is placed on each unloading belt pulley group, so that the two half-piece battery cells are synchronously conveyed along the first direction; the double-piece rotary processing workbench module is placed between the double-piece loading conveyor belt module and the double-piece unloading conveyor belt module, including a rotary drive mechanism, and four bearing platforms are evenly arranged along its circumference. The rotary drive mechanism drives the bearing platform to rotate 90 degrees in a stepwise manner, and the bearing platform passes through the double-piece loading conveyor belt module in turn. A loading station is arranged at the discharge end of the conveyor belt module, a first processing station, a second processing station and a loading station is arranged near the feed end of the double-chip loading conveyor belt module; a double-chip loading rotating arm module is arranged between the double-chip loading conveyor belt module and the loading station, wherein the loading rotating arm is connected to the driving shaft of the loading rotating driving member, and two loading suction cup modules with adsorption surfaces facing downwards are arranged at the free end of the loading rotating arm, wherein the two loading suction cup modules are arranged at intervals, and the loading rotating driving member drives the loading rotating arm to rotate, and the loading suction cup absorbs the two half-cell battery cells of the double-chip loading conveyor belt module, and the loading rotating arm rotates, and the loading suction cups Release it to the supporting platform located at the loading station; a double-piece unloading arm module is arranged between the unloading station and the double-piece unloading conveyor belt module, wherein the unloading arm is connected to the driving shaft of the unloading rotary drive member, and two unloading suction cup modules with adsorption surfaces facing downwards are arranged at the free end of the unloading arm, and the unloading rotary drive member drives the unloading arm to rotate, and the unloading suction cups absorb the two half-piece battery cells on the supporting platform located at the unloading station, and the unloading arm rotates, and the unloading suction cups release them to the double-piece unloading conveyor belt module; wherein the conveying direction of the double-piece loading conveyor belt module is the first direction, and the direction in the horizontal plane and perpendicular to it is the second direction.
[0006] A double-cell laser induced sintering device according to one embodiment also includes a double-cell correction device; the double-cell correction device includes a correction carrier for carrying two half-cell cells side by side, a distance control block is arranged on the center line of the correction carrier, and the two half-cell cells are placed on both sides of the distance control block respectively; it also includes a correction module, the correction module includes clamping blocks arranged on the outside of the four sides of the correction carrier, and a driving module for controlling the movement of the clamping blocks towards and away from the correction carrier.
[0007] In an embodiment of a double-chip battery laser induced sintering device, the double-chip deviation correction device is arranged between the discharge end of the double-chip feeding conveyor belt module and the feeding station.
[0008] In a double-chip battery laser induced sintering device according to one embodiment, the deviation-correcting bearing member includes two or more anti-slip belts arranged at intervals, and the extending direction of the anti-slip belts is perpendicular to the extending direction of the distance control block.
[0009] In one embodiment, a double-chip battery laser induced sintering device is provided, wherein the double-chip correction device is arranged at the discharge end of the double-chip feeding conveyor belt module, and an independent feeding conveyor belt assembly is arranged at the discharge end of the double-chip feeding conveyor belt module as a correction bearing member, the distance control block is arranged between the two feeding belt wheel groups, and the clamping blocks of the correction module are arranged on both sides and front and back of the feeding conveyor belt assembly.
[0010] In an embodiment of a double-chip battery laser induced sintering device, the double-chip deviation correction device is arranged at a loading station.
[0011] In a double-chip battery laser induced sintering device according to one embodiment, the distance control block is one or more rollers with fixed widths that are located above the deviation correction support and extend along the center line direction of the deviation correction support.
[0012] In one embodiment, a double-chip battery laser induced sintering device is provided, wherein the loading arm of the double-chip loading arm module includes a first rotating arm and a second rotating arm arranged at 90 degrees, when the loading suction cup module of the first rotating arm reciprocates between the double-chip loading conveyor belt module and the deviation correction bearing member, the loading suction cup module of the second rotating arm reciprocates between the deviation correction bearing member and the bearing platform located at the loading station.
[0013] In one embodiment, a double-chip battery laser induced sintering device is provided, wherein the support platform comprises a first support area and a second support area arranged side by side, wherein the support platform is provided with independent adsorption chambers corresponding to the first support area and the second support area, and are respectively connected to vacuum generating devices, wherein when the support platform is located at the loading station, the first support area and the second support area are arranged side by side in the second direction.
[0014] In one embodiment, a double-cell laser induced sintering device is provided, wherein a conductive plate is provided on the carrier platform; the electric input module comprises a lifting assembly and a first conductive member and a second conductive member provided on the lifting assembly; when the carrier platform carries a solar cell at a processing station, the second conductive member is correspondingly provided above the edge of the carrier platform located at the processing station, and the first conductive member is correspondingly provided above the solar cell; the lifting assembly drives the first conductive member and the second conductive member to descend, the second conductive member contacts the conductive plate of the carrier platform, and the first conductive member contacts the upper surface grid line of the solar cell, thereby applying voltage to the solar cell.
[0015] In a double-cell laser induced sintering device according to one embodiment, the first conductive member is an elastic probe row arranged in strips, wherein the middle of the elastic probe row corresponds to the middle position of two half-cells and no probe is arranged.
[0016] In an embodiment of a double-cell laser induced sintering device, the first conductive member is a row of elastic probes arranged in strips, wherein the middle of the row of elastic probes corresponding to the middle position of two cell sheets is disconnected or separated by an insulating member.
[0017] In a double-chip battery laser induced sintering device according to one embodiment, the first conductive member of the first processing station and the first conductive member of the second processing station are vertically arranged, and the vertical distances between the two and the rotation center of the support platform are different.
[0018] In one embodiment of a double-chip battery laser induced sintering device, a variable distance module is provided on the rotating arm of the double-chip feeding rotating arm module, and when driving the two feeding suction cups to move from the deviation correction bearing member to the bearing platform of the feeding station, the distance between them becomes smaller, and when moving from the bearing platform at the feeding station to the deviation correction bearing member, the distance between them becomes larger;
[0019] A variable distance module is arranged on the unloading arm of the double-piece unloading arm module, which is connected to the two unloading suction cups. When the two unloading suction cups are driven from the mobile supporting platform of the unloading station to the double-piece unloading conveyor belt module, the distance between them becomes larger, and when they are moved from the double-piece unloading conveyor belt module to the supporting platform of the unloading station, the distance between them becomes smaller.
[0020] In one embodiment of a double-chip battery laser induced sintering device, a variable distance module is provided on the first rotating arm of the chip loading rotating arm module, and the variable distance module is connected to two loading suction cups, and the distance between the two loading suction cups is reduced when the two loading suction cups are driven to move from the double-chip loading conveyor belt module to the deviation correction bearing member, and the distance between the two loading suction cups is increased when the two loading suction cups are driven to move from the deviation correction bearing member to the double-chip loading conveyor belt module;
[0021] A variable distance module is arranged on the unloading arm of the double-piece unloading arm module, which is connected to the two unloading suction cups. When the two unloading suction cups are driven from the mobile supporting platform of the unloading station to the double-piece unloading conveyor belt module, the distance between them becomes larger, and when they are moved from the double-piece unloading conveyor belt module to the supporting platform of the unloading station, the distance between them becomes smaller.
[0022] In a double-cell laser induced sintering device according to an embodiment of the present invention, the variable pitch module comprises a fixed synchronous belt pulley, the fixed synchronous belt pulley is fixedly arranged on a rotating drive member fixing seat, and the fixed synchronous belt pulley does not rotate with the rotating arm;
[0023] A rotating synchronous pulley arranged on the connecting arm, a synchronous belt sleeved on the fixed synchronous pulley and the rotating synchronous pulley, and a first connecting rod and a second connecting rod, one end of the first connecting rod is hinged on the rotating synchronous pulley, and the other end is hinged on a suction cup module, one end of the second connecting rod is hinged on the rotating synchronous pulley, and the other end is hinged on another suction cup module;
[0024] The variable pitch module also includes a first linear guide module and a second linear guide module; both are arranged on both sides of the connecting arm on which the rotating synchronous pulley is located, and extend along the extension direction of the connecting arm, the first suction cup module moves along the extension direction of the first connecting arm through the first linear guide module, and the second suction cup module moves along the extension direction of the first connecting arm through the second linear guide module; wherein the first linear guide module and the second linear guide module are both slide rail slider modules, the slide rail is arranged along the extension direction of the connecting arm, and the two suction cup modules are arranged on the slider and slide along the slide rail.
[0025] The beneficial effects of the utility model are:
[0026] The present application realizes laser induced sintering of double half-cell solar cells by sequentially arranging a double-cell loading conveyor belt module, a double-cell loading rotating arm module, a double-cell rotating processing worktable module, a double-cell unloading rotating arm module, a double-cell unloading conveyor belt module, and a laser processing module and an electric input module arranged on the processing station of the double-cell rotating processing worktable module, and the equipment structure is reasonably designed.
[0027] The present application achieves voltage application and laser-induced sintering of double-half-cell solar cells on the supporting platform by arranging a conductive plate on the supporting platform, and the lifting assembly drives the first conductive member and the second conductive member to contact the solar cell and the conductive plate respectively, and the voltage application structure is simple and reliable.
[0028] The present application provides a deviation correction platform to achieve positioning and distance control of the double half-cell solar cell when it is transferred to the carrier, which is beneficial for the conductive member to accurately contact the corresponding position of the solar cell.
[0029] The present application provides a variable distance module on the double-sheet loading rotating arm module and the double-sheet unloading rotating arm module, so as to adjust the distance between the double half-sheet solar cells during the transfer process. BRIEF DESCRIPTION OF THE DRAWINGS
[0030] Figure 1 A schematic top view of a double-cell laser-induced sintering device according to an embodiment of the utility model;
[0031] Figure 2 A schematic top view of a double-cell laser-induced sintering device according to an embodiment of the utility model;
[0032] Figure 3It is a top view schematic diagram of the support platform and the conductive member located at the first processing station and the second processing station of the utility model;
[0033] Figure 4 This is a structural schematic diagram of a double-sheet deviation correction device according to an embodiment of the utility model;
[0034] Figure 5 It is a top view schematic diagram of a double-piece feeding rotating arm module with a variable pitch module according to an embodiment of the utility model;
[0035] Figure 6 It is a top view schematic diagram of a double-piece unloading rotating arm module with a variable distance module according to an embodiment of the utility model. DETAILED DESCRIPTION
[0036] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the embodiments in the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.
[0037] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.
[0038] like Figure 1 and Figure 2 As shown, the present application provides a double-cell laser-induced sintering device, wherein: Figure 1 This is a top view of a double-cell laser-induced sintering device. Figure 2 is a top view schematic diagram of a laser induced sintering device excluding an electrical input module; wherein, Figure 2 Arrows indicate the conveying directions of the modules of the double-chip battery laser induced sintering equipment. A double-chip battery laser induced sintering equipment of the present application includes a double-chip loading conveyor belt module 100, a double-chip loading rotating arm module 200, a double-chip rotating processing table module 300, a double-chip unloading rotating arm module 400, a double-chip unloading conveyor belt module 500, and a laser processing module (not shown in the figure) and an electric input module 700 arranged at the processing station of the double-chip rotating processing table module 300.
[0039] For details, see Figure 1 and Figure 2In the present application, the conveying direction of the double-sheet loading conveyor belt module 100 is taken as the first direction, and the direction in the horizontal plane and perpendicular thereto is taken as the second direction. The double-sheet loading conveyor belt module 100 includes one or multiple loading conveyor belt assemblies 110 arranged along the first direction. It includes two loading pulley groups 111 arranged at intervals perpendicular to the second direction, a loading drive motor 112 driving the driving wheel of the loading pulley group 111 to rotate, and a half-cell battery cell is placed on each loading pulley group 111 to synchronously convey the two half-cell batteries along the first direction. As a specific embodiment, each loading pulley group 111 includes two belts arranged at intervals along the second direction.
[0040] The setting of the double-sheet unloading conveyor belt module 500 is similar to that of the double-sheet loading conveyor belt module 100, and the double-sheet unloading conveyor belt module 500 includes one or more unloading conveyor belt assemblies 510 arranged in sequence along the first direction. It includes two unloading belt pulley groups 511 arranged at intervals along the second direction, and an unloading drive motor 512 that drives the driving wheel of the unloading belt pulley group 511 to rotate. A half-cell battery sheet is placed on each unloading belt pulley group 511, and two half-cell batteries are synchronously conveyed along the first direction. Among them, as a specific embodiment, each unloading belt pulley group 511 includes two belts arranged at intervals along the second direction.
[0041] The double-piece rotary processing workbench module 300 is arranged between the double-piece loading conveyor module 100 and the double-piece unloading conveyor module 500, and includes a rotary drive mechanism 310, and at least two bearing platforms 320 are evenly arranged along its circumference, and the rotary drive mechanism 310 drives the bearing platforms 320 to rotate step by step. As a preferred embodiment, four bearing platforms 320 are arranged, and the angle between adjacent bearing platforms 320 is 90 degrees. The rotary drive mechanism 310 drives the bearing platforms 320 to rotate step by step by 90 degrees, and the bearing platforms 320 pass through the corresponding stations in turn and complete the corresponding actions. In this embodiment, four stations are included, a loading station arranged near the discharge end of the double-piece loading conveyor module 100, a unloading station arranged near the feed end of the double-piece unloading conveyor module 500, and a first processing station and a second processing station arranged between the two. The rotary drive mechanism 310 drives the carrier 320 to rotate 90 degrees, passing through the loading station, the first processing station, the second processing station and the unloading station in sequence, and completing the corresponding loading, laser induced sintering processing and unloading actions in the corresponding stations in sequence. Figure 1 A, B, C, and D respectively represent the positions of the loading station, the first processing station, the second processing station, and the unloading station.
[0042] A double-sheet loading arm module 200 is arranged between the loading stations of the double-sheet loading conveyor module 100 and the double-sheet rotating processing worktable module 300 to pick up the two half-sheet battery cells at the discharge end of the double-sheet loading conveyor module 100 and transfer them to the carrier 320 located at the loading station of the double-sheet rotating processing worktable module 300. It includes a loading rotary drive 210 and a loading arm 220. The loading arm 220 is connected to the driving shaft of the loading rotary drive 210. The loading arm 220 is driven to rotate by the loading rotary drive 210. The free end of the loading arm 220 is provided with two loading suction cup modules 230 with the adsorption surface facing downward. Specifically, the two loading suction cup modules 230 are arranged at intervals to absorb the two half-sheet battery cells arranged side by side on the double-sheet loading conveyor module 100. The loading arm rotates to the loading station and releases them to the carrier 320 located at the loading station. Preferably, the feeding rotary driving member 210 is a motor.
[0043] A double-sheet unloading arm module 400 is arranged between the unloading station of the double-sheet rotary processing workbench module 300 and the double-sheet unloading conveyor module 500 to pick up the two half-sheet battery cells on the carrier 320 at the unloading station and transfer them to the feeding end of the double-sheet unloading conveyor module 500. It includes an unloading rotary drive 410 and an unloading arm 420. The unloading arm 420 is connected to the driving shaft of the unloading rotary drive 410. The unloading arm 420 is driven to rotate by the unloading rotary drive 410. Two unloading suction cup modules 430 with adsorption surfaces facing downward are arranged at the free end of the unloading arm 420. Specifically, the two unloading suction cup modules 430 are arranged at intervals to absorb the two half-sheet battery cells on the carrier 320 at the unloading station. The arm rotates to the feeding end of the double-sheet unloading conveyor module 500 and releases it. Preferably, the unloading rotary drive 410 is a motor.
[0044] The present application realizes laser induced sintering of double half-cell solar cells by sequentially arranging a double-chip loading conveyor belt module, a double-chip loading arm module, a double-chip rotary processing worktable module, a double-chip unloading arm module, a double-chip unloading conveyor belt module, and a laser processing module and an electric input module arranged on the processing station 300 of the double-chip rotary processing worktable module, and the equipment structure is reasonably designed.
[0045] See also Figure 1 and Figure 2The carrier platform 320 of the double-piece rotary processing workbench module 300 includes a first carrier area 321 and a second carrier area 322 arranged side by side, wherein the carrier platform 320 corresponds to the first carrier area 321 and the second carrier area 322 and has independently controlled adsorption chambers arranged therein, and are respectively connected to vacuum generating devices to provide negative pressure. The upper surface of the carrier platform 320 corresponds to the first carrier area and the second carrier area, and is provided with a first adsorption hole 3211 and a second adsorption hole 3221. When the carrier platform 320 is located at the loading station, the first carrier area 321 and the second carrier area 322 are arranged side by side in the second direction.
[0046] See also Figure 1 and Figure 3 , located above the carrier platform 320 of the processing station, an electric input module 700 is arranged. It includes a lifting component 710 and a conductive member 720 arranged on the lifting component 710. Among them, the lifting component 710 can be a motor screw module, etc., and can drive the conductive member 720 to rise and fall.
[0047] in, Figure 3 It is a top view schematic diagram of the support platform and the conductive member located at the first processing station and the second processing station of the utility model.
[0048] The conductive member 720 includes a first conductive member 721 and a second conductive member 722. The first conductive member 721 and the second conductive member 722 are connected to the positive or negative pole of the power supply as required. In the present application, the first conductive member 721 and the second conductive member 722 are both arranged downward. During processing, the lifting assembly 710 drives them to descend and connects them to the upper and lower surface grid lines of the solar cell respectively to apply voltage to the solar cell. A laser processing module (not shown in the figure) is arranged above the electrical input module 700. When voltage is applied to the solar cell, the surface of the solar cell is laser scanned to complete induced sintering. After processing is completed, the first conductive member 721 and the second conductive member 722 move upward driven by the lifting assembly 710, waiting for the next processing.
[0049] As a preferred embodiment, in order to make the structure of applying voltage for laser induced sintering more convenient and applicable and to improve the processing speed, a conductive plate is provided on the carrier 320 of the present application. Specifically, the upper surface of the carrier 320 is covered with a copper or copper alloy plate as a conductive plate. When the solar cell is placed on the carrier 320, the grid line on the lower surface of the solar cell can contact this conductive plate. In this embodiment, the second conductive member 722 of the electric input module 700 is arranged outside the first conductive member 721. Specifically, the second conductive member 722 is correspondingly arranged at the edge of the carrier 320 located at the processing station. When the carrier 320 carries the solar cell for processing at the processing station, the lifting assembly 710 drives the first conductive member 721 and the second conductive member 722 to descend, and the first conductive member 721 contacts the grid line on the upper surface of the solar cell. The second conductive member 722 is outside the placement range of the solar cell, and it does not contact the cell but contacts the conductive plate of the carrier 320, thereby realizing the application of voltage to the solar cell.
[0050] Specifically, the first conductive member 721 of the electrical input module 700 includes at least one strip-shaped electrode, and the first conductive member 721 can be an elastic probe row (i.e., the probe bracket includes a plurality of elastic probes arranged in a colinear manner below, and the plurality of probes are in contact with the battery cell). Of course, the first conductive member 721 can also include a plurality of elastic probe rows arranged side by side and spaced apart. Because the first conductive member 721 is in contact with the main grid line in the shape of a strip, when there are a plurality of them, the plurality of electrodes are arranged in a direction perpendicular to the main grid line. It should be noted that the strip-shaped electrode here means that: because the first electrode contacts the main grid line of the battery cell, and the main grid line is in the shape of a strip, in order to make the first electrode better in contact with the main grid line, the outer contour of the electrode projected on the horizontal plane is generally in the shape of a strip (on a straight line).
[0051] As another embodiment, the second conductive member 722 includes at least one conductive column, that is, in order to achieve electrical connection, the second conductive member 722 only needs to have a contact point connected to the conductive plate. Of course, the number of conductive columns can also be more, such as four. In this embodiment, the second conductive member 722 can also be an elastic probe row.
[0052] The laser processing module (not shown in the figure) is arranged above the electric input module 700. Specifically, it is arranged above the first conductive member 721, emits a laser beam toward the solar cell, and scans the solar cell when a voltage is applied to the solar cell.
[0053] The present application achieves voltage application and laser-induced sintering of double-half-cell solar cells on the supporting platform by arranging a conductive plate on the supporting platform, and the lifting assembly drives the first conductive member and the second conductive member to contact the solar cell and the conductive plate respectively, and the voltage application structure is simple and reliable.
[0054] It can be understood that at the first processing station, the position where the first conductive member 721 contacts the solar cell cannot be laser scanned because it is blocked by the first conductive member 721. For this reason, the present application sets the positions of the first conductive member 721 at the first processing station and the first conductive member 721 at the second processing station so that when the solar cell is at the second processing station, the first conductive member 721 contacts different positions of the solar cell, thereby completing the laser scanning of the position not scanned at the first processing station at this second processing station. Specifically, the first conductive member 721 at the first processing station and the first conductive member 721 at the second processing station are vertically arranged, and the vertical distances between the two and the rotation center of the carrier 320 are different. For example, the first conductive member 721 at the first processing station is arranged away from the rotation center of the carrier 320, and the first conductive member 721 at the second processing station is arranged close to the rotation center of the carrier 320.
[0055] In order to realize the processing of two solar cell sheets carried side by side on the supporting platform 320, the conductive plate, the first conductive member, and the second conductive member can correspond to the first supporting area and the second supporting area, respectively, and are respectively set to two. As a more preferred solution, the conductive plate, the first conductive member, and the second conductive member are each set to one, wherein no contact is set in the middle of the first conductive member 721. Taking the probe row as an example, no probe is set in the middle position (corresponding to the position between the two half-cells) to avoid the middle probe from contacting the conductive plate and causing a short circuit. Of course, this middle position can be disconnected, or the middle position can be separated by an insulating member, so that the mechanical properties of the probe set in this way are better and it is not easy to be damaged.
[0056] See also Figure 1 and Figure 4 As can be understood by those skilled in the art, the first conductive member 721 is used to press the corresponding grid line on each half-sheet solar cell, and the first conductive member 721 and the solar cell are required to have good alignment. As a preferred method, the double-sheet cell laser induced sintering equipment of the present application positions the double-sheet cell before transferring it to the carrier 320. Therefore, a double-sheet correction device 800 is provided between the discharge end of the double-sheet feeding conveyor module 100 and the feeding station of the double-sheet rotating processing workbench module 300. See Figure 4, is a schematic diagram of the structure of the double-chip deflection correction device of this embodiment. Among them, the double-chip deflection correction device 800 includes a deflection correction carrier 810, which is used to carry two half-chip battery cells side by side. A distance control block 830 is set on the center line of the deflection correction carrier 810, and the two battery cells are placed on both sides of the distance control block 830. Specifically, the distance control block 830 is a roller with a fixed width extending along the center line direction of the deflection correction carrier above the deflection correction carrier 810. It also includes a deflection correction module 820, which includes a clamping block 821 set on the outside of the four sides of the deflection correction carrier 810, and a driving module 822 that controls the clamping block 821 to move close to and away from the deflection correction carrier 810. The driving module 822 drives the clamping blocks 821 on all sides to move close to the deflection correction carrier 810, clamps the double-chip battery cells toward the center of the deflection correction carrier, and completes the mechanical deflection correction of the two battery cells. The driving module 822 can be a cylinder, etc., and other driving modules of the prior art that can achieve clamping are all acceptable. In order to reduce the hard impact of the clamping block 821 and the distance control block 830 on the battery cell, rubber rollers are provided on the clamping block 821 and the distance control block 830 .
[0057] Preferably, the deviation-correcting bearing member 810 includes two or more anti-slip belts 811 arranged at intervals, which can provide support for the battery cell and prevent the battery cell from being released thereon and causing unnecessary sliding, see Figure 3 The extension direction of the anti-slip belt 811 is perpendicular to the extension direction of the distance control block 830. The clamping blocks 821 around the correction module 820 move close to the correction carrier 810 to clamp the two battery cells toward the center of the correction carrier, and complete the mechanical correction of the two battery cells at the same time. Due to the existence of the distance control block 830, the distance between the battery cells is also accurately controlled. So that when they are transferred to the carrier 320, the two maintain a precise distance and position.
[0058] Please continue to see Figure 1 and Figure 2 , the double-sheet feeding arm module 200 simultaneously completes the feeding of the double-sheet feeding conveyor belt module 100 to the correction bearing 810 of the double-sheet correction device 800, and the feeding of the double half-sheet battery sheet that has completed the correction from the correction bearing 810 to the bearing platform 320 located at the feeding station. Specifically, the feeding arm 220 of the double-sheet feeding arm module 200 includes a first arm 221 and a second arm 222 that are arranged at 90 degrees. When the feeding suction cup module 230 of the first arm 221 reciprocates between the double-sheet feeding conveyor belt module 100 and the correction bearing 810, the feeding suction cup module 230 of the second arm 222 reciprocates between the correction bearing 810 and the bearing platform 320 located at the feeding station to complete the feeding.
[0059] The present application is not limited to this, and the double-chip correction device 800 can also be set at the discharge end of the double-chip loading conveyor belt module 100. Specifically, an independent loading conveyor belt assembly 110 is set at the discharge end of the double-chip loading conveyor belt module 100 as a correction bearing member. The distance control block is set between the two loading belt pulley groups 111 of this loading conveyor belt assembly 110, and the clamping blocks of the correction module are set on both sides and in front and behind the loading conveyor belt assembly. Such a setting makes the structure more compact, the positioning accuracy is relatively better, and the equipment cost is lower. At this time, the double-chip loading arm module 200 can include only one loading arm 220 to absorb the two half-cell battery cells side by side on the loading conveyor belt assembly. The loading arm rotates to the loading station and releases it to the load-bearing platform 320 located at the loading station to complete the loading.
[0060] As another feasible solution, the double-sheet deviation correcting device can also be arranged at the loading station.
[0061] In the present application, double-half-cell solar cells are transported side by side on the double-cell loading conveyor belt module 100 and the double-cell unloading conveyor belt module 500. There needs to be a certain distance between the cells to avoid collisions during transportation. When the double-half-cell solar cells are placed on the support platform 320, the distance between the two should be as small as possible to accommodate the processing format of the laser. Therefore, the double-cell loading arm module 200 and the double-cell unloading arm module 400 of the present application can simultaneously adjust the distance between the two loading suction cup modules 230 during the process of transferring the double-half-cell solar cells. For details, see Figure 5 and Figure 6 , respectively, are structural schematic diagrams of a double-chip loading arm module 200 and a double-chip unloading arm module 400 according to a preferred embodiment.
[0062] Corresponding to the situation where the double-sheet deviation correction device 800 is arranged between the discharge end of the double-sheet feeding conveyor module 100 and the feeding station of the double-sheet rotating processing worktable module 300, the first rotating arm 221 of the double-sheet feeding rotating arm module 200 includes a first main arm connected to the motor output shaft, and a first connecting arm 2211 arranged at the first main arm away from the rotation center; similarly, the second rotating arm 222 includes a second main arm connected to the motor output shaft, and a second connecting arm 2221 arranged at the second main arm away from the rotation center. Preferably, the first connecting arm 2211 is arranged vertically to the first main arm; similarly, the second connecting arm 2221 is arranged vertically to the second main arm. Those skilled in the art can know that the first connecting arm 2211 can be fixed on the first main arm, or it can be integrally formed with the first main arm; the second connecting arm 2221 can be fixed on the second main arm, or it can be integrally formed with the second main arm.
[0063] Two feeding suction cup modules 230 are arranged at intervals on the first connecting arm 2211 along its extension direction. In this embodiment, taking the suction cup module as an example, the material taking and discharging mechanism is arranged at intervals on the first connecting arm 2211 along its extension direction. More specifically, the suction cups of the first suction cup module 231 and the second suction cup module 232 are arranged below the first connecting arm 2211, with the suction surface facing downward.
[0064] In order to achieve the variable pitch of the first suction cup module 231 and the second suction cup module 232, a variable pitch module is also provided on the first rotating arm 221, and the variable pitch module includes a fixed synchronous belt pulley 251, and the fixed synchronous belt pulley 251 is fixedly arranged on the motor base 250. More specifically, the fixed synchronous belt pulley 251 does not rotate with the first rotating arm 221 or the second rotating arm 222.
[0065] The pitch changing module includes a rotating synchronous pulley 252 rotatably arranged on the first connecting arm 2211, a synchronous belt 253 sleeved on the fixed synchronous pulley 251 and the rotating synchronous pulley 252, and a first connecting rod 254 and a second connecting rod 255. One end of the first connecting rod 254 is hinged on the rotating synchronous pulley 252, and the other end is hinged on the first suction cup module 231. One end of the second connecting rod 255 is hinged on the rotating synchronous pulley 252, and the other end is hinged on the second suction cup module 232. More specifically, the connecting line of the first connecting rod 254 and the second connecting rod 255 at the hinge on the rotating synchronous pulley is preferably in the diameter direction of the rotating synchronous pulley 252. The advantage of such a setting is that when the material pitch is changed, the two materials are changed synchronously, which is more reliable and accurate.
[0066] The variable pitch module also includes a first linear guide module 256 and a second linear guide module 257. Both are arranged on both sides of the first connecting arm 2211 on the rotating synchronous pulley 252, and extend along the extension direction of the first connecting arm 2211. The first suction cup module 231 moves along the extension direction of the first connecting arm 2211 through the first linear guide module 256, and the second suction cup module 232 moves along the extension direction of the first connecting arm 2211 through the second linear guide module 257. As an implementable method, the first linear guide module 256 and the second linear guide module 257 are both slide rail and slider modules, wherein the slide rail is arranged along the extension direction of the first connecting arm, and the first suction cup module 231 and the second suction cup module 232 are arranged on the slider and slide along the slide rail.
[0067] In this embodiment, no variable distance module is set on the second rotating arm 222, and its corresponding first suction cup module 231 and second suction cup module 232 are respectively fixed on the second connecting arm 2221 at intervals along the extension direction of the second connecting arm 2221, and the suction cups of the first suction cup module 231 and the second suction cup module 232 are set below the second connecting arm 2221 with the adsorption surface facing downward.
[0068] When the rotating arm swings clockwise, the first rotating arm 221 and the second rotating arm 222 swing clockwise at the same time. Since the fixed synchronous pulley 251 is fixedly arranged, the synchronous belt 253 drives the rotating synchronous pulley 252 to rotate clockwise, driving the first connecting rod 254 and the second connecting rod 255 to rotate, thereby driving the first suction cup module 231 and the second suction cup module 232 to move in the approaching direction along the first linear guide module 256 and the second linear guide module 257 respectively, thereby reducing the distance between the first suction cup module 231 and the second suction cup module 232. When swinging counterclockwise, the distance between the first suction cup module 231 and the second suction cup module 232 can be increased.
[0069] The double-piece unloading arm module 400 can be provided with a unloading arm 420, on which a variable distance module is provided, and its position is adjusted so that when the arm is swung counterclockwise, the distance between the first suction cup module and the second suction cup module is increased. Specifically, it includes an unloading main arm and an unloading connecting arm 421, and two unloading suction cup modules 430 are arranged at intervals along the extending direction of the unloading connecting arm 421, and specifically, they are arranged below the unloading connecting arm 421, and the adsorption surface is arranged downward.
[0070] In order to achieve the variable distance of the two unloading suction cup modules 430, a variable distance module is also provided on the unloading rotating arm 420, and the variable distance module includes a fixed synchronous belt pulley 451 for unloading. The fixed synchronous belt pulley 451 for unloading is fixedly set on the unloading motor seat 450. More specifically, the fixed synchronous belt pulley 451 for unloading does not rotate with the unloading rotating arm 420.
[0071] The variable pitch module includes a unloading rotating synchronous pulley 452 rotatably arranged on the unloading connecting arm 421, a unloading synchronous belt 453 mounted on the unloading fixed synchronous pulley 451 and the unloading rotating synchronous pulley 452, and a first unloading connecting rod 454 and a second unloading connecting rod 455. One end of the first unloading connecting rod 454 is hinged to the unloading rotating synchronous pulley 452, and the other end is hinged to a unloading suction cup module 430. One end of the second unloading connecting rod 455 is hinged to the unloading rotating synchronous pulley 452, and the other end is hinged to the unloading suction cup module 430.
[0072] The variable pitch module also includes a first linear guide module 456 for unloading and a second linear guide module 457 for unloading. Both are arranged on both sides of the unloading connecting arm 421, located on the unloading rotating synchronous pulley 452, and extend along the extension direction of the unloading connecting arm 421. One unloading suction cup module 430 moves along the extension direction of the unloading connecting arm 421 through the first linear guide module 456 for unloading, and the other unloading suction cup module 430 moves along the extension direction of the unloading connecting arm 421 through the second linear guide module 457 for unloading. As an implementable method, the first linear guide module 456 for unloading and the second linear guide module 457 for unloading are both slide rail and slider modules, wherein the slide rail is arranged along the extension direction of the first connecting arm, and the unloading suction cup module 430 is arranged on the slider and slides along the slide rail.
[0073] Corresponding to the situation where the double-sheet correcting device 800 is arranged at the discharge end of the double-sheet loading conveyor belt module 100, the double-sheet loading arm module 200 can be provided with only one loading arm 220, on which a variable distance module is arranged, and its arrangement is similar to the variable distance of the aforementioned double-sheet unloading suction cup module 400. When the two loading suction cups are driven to move from the correcting carrier to the supporting platform of the loading station, the distance becomes smaller, and when they are moved from the supporting platform located at the loading station to the correcting carrier, the distance becomes larger.
[0074] By adopting the above-mentioned variable pitch module, the variable pitch between the double-plate solar cells can be achieved during the transfer process, and the variable pitch does not require an additional drive component, which saves power and avoids the increase in the weight of the rotating arm caused by the drive component being set on the rotating arm; the structure is simple and light, and saves power.
[0075] In this specification, each embodiment is described in a progressive, parallel, or progressive and parallel manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.
[0076] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A double-cell laser induced sintering device, characterized by: It includes a double-sheet feeding conveyor belt module, a double-sheet feeding rotating arm module, a double-sheet rotating processing table module, a double-sheet unloading rotating arm module, a double-sheet unloading conveyor belt module, and a laser processing module and an electric input module arranged at a processing station of the double-sheet rotating processing table module. The double-sheet feeding conveyor belt module is arranged along the first direction, including two feeding belt pulley groups arranged at intervals along the second direction, a feeding drive motor driving the driving wheel of the feeding belt pulley group to rotate, and a half-sheet battery sheet is placed on each feeding belt pulley group, so that the two half-sheet battery sheets are synchronously conveyed along the first direction; The double-sheet unloading conveyor belt module is arranged along the first direction, including two unloading belt pulley groups arranged at intervals along the second direction, and an unloading drive motor that drives the driving wheel of the unloading belt pulley group to rotate. A half-sheet battery sheet is placed on each unloading belt pulley group, so that the two half-sheet battery sheets are synchronously conveyed along the first direction; The double-chip rotary processing workbench module is placed between the double-chip loading conveyor module and the double-chip unloading conveyor module, and includes a rotary drive mechanism. Four bearing platforms are evenly arranged along its circumference. The rotary drive mechanism drives the bearing platform to rotate 90 degrees in steps. The bearing platform passes through the loading station arranged near the discharge end of the double-chip loading conveyor module, the first processing station, the second processing station and the unloading station arranged near the feed end of the double-chip unloading conveyor module in sequence. A double-sheet feeding rotating arm module is arranged between the double-sheet feeding conveyor belt module and the feeding station, wherein the feeding rotating arm is connected to the driving shaft of the feeding rotating driving member, and two feeding suction cup modules with adsorption surfaces facing downward are arranged at the free end of the feeding rotating arm, wherein the two feeding suction cup modules are arranged at intervals, and the feeding rotating driving member drives the feeding rotating arm to rotate, and the feeding suction cup absorbs two half-sheet battery cells of the double-sheet feeding conveyor belt module, and the feeding rotating arm rotates, and the feeding suction cup releases them to the bearing platform located at the feeding station; A double-sheet unloading arm module is arranged between the unloading station and the double-sheet unloading conveyor belt module, wherein the unloading arm is connected to the driving shaft of the unloading rotary drive member, and two unloading suction cup modules with adsorption surfaces facing downward are arranged at the free end of the unloading arm. The unloading rotary drive member drives the unloading arm to rotate, and the unloading suction cup absorbs two half-sheet battery cells on the supporting platform at the unloading station. The unloading arm rotates, and the unloading suction cup releases them to the double-sheet unloading conveyor belt module; The conveying direction of the double-sheet loading conveyor belt module is the first direction, and the direction in the horizontal plane and perpendicular thereto is the second direction.
2. The double-cell laser induced sintering equipment according to claim 1, characterized in that: It also includes a double-sheet correction device; The double-cell deviation correction device comprises a deviation correction bearing member for carrying two half-cell battery cells side by side, a distance control block is arranged on the center line of the deviation correction bearing member, and the two half-cell battery cells are respectively placed on both sides of the distance control block; It also includes a deviation correction module, which includes clamping blocks arranged on the outside of the four sides of the deviation correction carrier, and a driving module for controlling the clamping blocks to move closer to and away from the deviation correction carrier.
3. The double-cell laser induced sintering equipment according to claim 2, characterized in that: The double-sheet deviation correcting device is arranged between the discharge end of the double-sheet feeding conveyor belt module and the feeding station.
4. The double-cell laser induced sintering device according to claim 3, characterized in that: The deviation-correcting bearing member comprises two or more anti-skid belts which are arranged at intervals, and the extending direction of the anti-skid belts is perpendicular to the extending direction of the distance control block.
5. The double-cell laser induced sintering equipment according to claim 2, characterized in that: The double-piece deviation correction device is arranged at the discharge end of the double-piece feeding conveyor belt module. An independent feeding conveyor belt assembly is arranged at the discharge end of the double-piece feeding conveyor belt module as a deviation correction bearing member. The distance control block is arranged between the two feeding belt wheel groups. The clamping blocks of the deviation correction module are arranged on both sides and front and back of the feeding conveyor belt assembly.
6. The double-cell laser induced sintering equipment according to claim 2, characterized in that: The double-sheet deviation correcting device is arranged at the loading station.
7. A double-cell laser induced sintering device according to any one of claims 2 to 5, characterized in that: The distance control block is one or more rollers with fixed widths that are located above the deviation correction bearing member and extend along the center line direction of the deviation correction bearing member.
8. The double-cell laser induced sintering equipment according to claim 3, characterized in that: The loading arm of the double-sheet loading arm module includes a first arm and a second arm arranged at 90 degrees. When the loading suction cup module of the first arm reciprocates between the double-sheet loading conveyor belt module and the deviation correction bearing member, the loading suction cup module of the second arm reciprocates between the deviation correction bearing member and the bearing platform located at the loading station.
9. The double-cell laser induced sintering equipment according to claim 1, characterized in that: The carrying platform includes a first carrying area and a second carrying area arranged side by side, wherein the carrying platform is provided with independent adsorption chambers corresponding to the first carrying area and the second carrying area, which are respectively connected to vacuum generating devices, wherein when the carrying platform is located at the loading station, the first carrying area and the second carrying area are arranged side by side in the second direction.
10. The double-cell laser induced sintering equipment according to claim 1, characterized in that: A conductive plate is arranged on the bearing platform; The electric input module comprises a lifting assembly and a first conductive member and a second conductive member arranged on the lifting assembly; When the carrying platform carries the solar cell at the processing station, the second conductive member is correspondingly arranged above the edge of the carrying platform at the processing station, and the first conductive member is correspondingly arranged above the solar cell; The lifting assembly drives the first conductive member and the second conductive member to descend, the second conductive member contacts the conductive plate of the carrier, and the first conductive member contacts the grid line on the upper surface of the solar cell to apply voltage to the solar cell.
11. The double-cell laser induced sintering device according to claim 10, characterized in that: The first conductive member is an elastic probe row arranged in a strip shape, wherein the middle portion of the elastic probe row corresponds to the middle position of two half-cells and is not provided with probes.
12. The double-cell laser induced sintering device according to claim 10, characterized in that: The first conductive member is a row of elastic probes arranged in strips, wherein the middle portion of the row of elastic probes corresponding to the middle position of two battery cells is disconnected or separated by an insulating member.
13. A double-cell laser induced sintering device according to any one of claims 10 to 12, characterized in that: The first conductive member of the first processing station and the first conductive member of the second processing station are vertically arranged, and the vertical distances between the two and the rotation center of the supporting platform are different.
14. The double-cell laser induced sintering device according to claim 5, characterized in that: A variable distance module is arranged on the rotating arm of the double-piece feeding rotating arm module, and when driving the two feeding suction cups to move from the deviation correction bearing to the bearing platform of the feeding station, the distance between them becomes smaller, and when moving from the bearing platform at the feeding station to the deviation correction bearing, the distance between them becomes larger; A variable distance module is arranged on the unloading arm of the double-piece unloading arm module, which is connected to the two unloading suction cups. When the two unloading suction cups are driven from the mobile supporting platform of the unloading station to the double-piece unloading conveyor belt module, the distance between them becomes larger, and when they are moved from the double-piece unloading conveyor belt module to the supporting platform of the unloading station, the distance between them becomes smaller.
15. The double-cell laser induced sintering device according to claim 8, characterized in that: A variable distance module is arranged on the first rotating arm of the double-sheet feeding rotating arm module, and the variable distance module is connected to the two feeding suction cups, and the distance between the two feeding suction cups becomes smaller when the two feeding suction cups are driven to move from the double-sheet feeding conveyor belt module to the deviation correction bearing member, and the distance between the two feeding suction cups becomes larger when the two feeding suction cups are driven to move from the deviation correction bearing member to the double-sheet feeding conveyor belt module; A variable distance module is arranged on the unloading arm of the double-piece unloading arm module, which is connected to the two unloading suction cups. When the two unloading suction cups are driven from the mobile supporting platform of the unloading station to the double-piece unloading conveyor belt module, the distance between them becomes larger, and when they are moved from the double-piece unloading conveyor belt module to the supporting platform of the unloading station, the distance between them becomes smaller.
16. The double-cell laser induced sintering device according to claim 14 or 15, characterized in that: The pitch-changing module comprises a fixed synchronous belt pulley, which is fixedly arranged on a fixed seat of the rotating drive member, and the fixed synchronous belt pulley does not rotate with the rotating arm; A rotating synchronous pulley arranged on the connecting arm, a synchronous belt sleeved on the fixed synchronous pulley and the rotating synchronous pulley, and a first connecting rod and a second connecting rod, one end of the first connecting rod is hinged on the rotating synchronous pulley, and the other end is hinged on a suction cup module, one end of the second connecting rod is hinged on the rotating synchronous pulley, and the other end is hinged on another suction cup module; The variable pitch module also includes a first linear guide module and a second linear guide module; both are arranged on both sides of the connecting arm on which the rotating synchronous pulley is located, and extend along the extension direction of the connecting arm, the first suction cup module moves along the extension direction of the first connecting arm through the first linear guide module, and the second suction cup module moves along the extension direction of the first connecting arm through the second linear guide module; wherein the first linear guide module and the second linear guide module are both slide rail slider modules, the slide rail is arranged along the extension direction of the connecting arm, and the two suction cup modules are arranged on the slider and slide along the slide rail.