Battery piece laser-assisted sintering system

Abstract

The utility model provides a battery piece laser-assisted sintering system which comprises a feeding device, a laser-assisted sintering device and a first transmission assembly, the feeding device and the laser-assisted sintering device are arranged in the transmission direction of battery pieces, the first transmission assembly is used for transmitting the battery pieces from the feeding device to the laser-assisted sintering device, and the feeding device comprises a feeding transmission assembly. The feeding conveying assembly and the first conveying assembly are arranged in a split mode. The feeding conveying assembly and the first conveying assembly are arranged in a split mode, the sintering processing efficiency of the battery pieces can be improved, the consistency of the sintering processing rhythm is kept, damage to the battery pieces is reduced, and piece blocking can be prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of semiconductor preparation, in particular to a battery sheet laser-assisted sintering system. Background Art

[0002] During the laser sintering process, a loading mechanism transfers the cells to a transport structure, which then transports them to the sintering area. In existing technology, the loading mechanism directly transfers the cells to the transport structure. If the transport structure is in motion during this process, it can damage the cells. Stopping the transport structure to receive the cells reduces sintering efficiency.

[0003] In view of this, it is necessary to provide a cell laser-assisted sintering system to solve the above technical problems. Utility Model Content

[0004] In order to achieve the above-mentioned purpose, the present invention provides a battery cell laser-assisted sintering system, which includes a loading device arranged along the battery cell transmission direction and a laser-assisted sintering device, and a first transmission component for transmitting the battery cell from the loading device to the laser-assisted sintering device. The loading device includes a loading transmission component, and the loading transmission component and the first transmission component are separately arranged.

[0005] As a further improvement of the present invention, the loading device further includes a loading box and a loading assembly for moving the battery cells from the loading box to the loading transmission assembly;

[0006] A carrying plate that can be adjusted up and down in height is provided in the loading box, and the loading assembly includes a loading suction cup.

[0007] As a further improvement of the present invention, the first transmission component includes a first transmission belt and a correction area located on the first transmission belt, the correction area is provided with a seventh photoelectric sensor for detecting the transmission of the battery cell to the correction area, and a correction part located downstream of the seventh photoelectric sensor for correcting the position of the battery cell.

[0008] As a further improvement of the present invention, the correction part includes a correction belt, a correction motor for driving the correction belt to move, and two correction blocks connected to the correction belt. The first transmission belt is located between the two correction blocks, and the movement of the correction belt drives the two correction blocks to move toward or oppositely.

[0009] As a further improvement of the present invention, the laser-assisted sintering device includes a laser assembly for emitting laser light to the battery cell, and a powered roller assembly for driving the battery cell to move and applying a reverse voltage to the battery cell.

[0010] As a further improvement of the present invention, the laser-assisted sintering device further includes an eighth photoelectric sensor for detecting the transmission of the battery sheet to the powered roller assembly, and the eighth photoelectric sensor is located upstream of the laser assembly.

[0011] As a further improvement of the present invention, it also includes a unloading device located downstream of the laser-assisted sintering device, and the unloading device includes an unloading transmission component, a unloading box, and an unloading component for moving the battery cell from the unloading transmission component to the unloading box.

[0012] As a further improvement of the present invention, the blanking box includes a first blanking box and a second blanking box, and the blanking transmission assembly is located between the first blanking box and the second blanking box;

[0013] The first blanking box and / or the second blanking box are arranged obliquely, and a baffle is provided on the edge of at least one side at the lowest point.

[0014] As a further improvement of the present invention, a sensor is provided in the blanking box to detect the number of battery cells in the blanking box.

[0015] As a further improvement of the present invention, it also includes a second transmission component for transmitting the battery cell from the laser-assisted sintering device to the blanking transmission component, and the blanking transmission component and the second transmission component are separately arranged.

[0016] Beneficial effects of the present invention: The present invention can speed up the laser sintering processing efficiency of the battery cell, maintain the consistency of the sintering processing rhythm, reduce damage to the battery cell, and prevent blockage by separating the feeding transmission component from the first transmission component. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0018] Figure 1 This is a top view of the laser-assisted sintering system for solar cells of the present invention;

[0019] Figure 2 This is a side view of the laser-assisted sintering system for solar cells of the utility model;

[0020] Figure 3 This is an overall schematic diagram of the transmission part of the utility model;

[0021] Figure 4 This is a schematic diagram of the first transmission component of the feeding device of the present invention;

[0022] Figure 5 This is a schematic diagram of the battery cell loading device of the present invention in the material taking position;

[0023] Figure 6 This is a schematic diagram of the battery cell loading device of the present invention in the loading position;

[0024] Figure 7 This is a structural diagram of the feeding and transmission assembly of the utility model;

[0025] Figure 8 This is a structural diagram of the feeding box of the utility model;

[0026] Figure 9 This is a structural diagram of the utility model in which the loading box is in an ascending state;

[0027] Figure 10 This is a top view of the loading box of the utility model;

[0028] Figure 11 This is a schematic diagram of the structure of the air knife of the utility model;

[0029] Figure 12 This is a schematic structural diagram of the first track-feeding assembly of the utility model;

[0030] Figure 13 This is a structural diagram of the feeding assembly of the utility model;

[0031] Figure 14 This is a schematic structural diagram of the first transmission component of the present invention;

[0032] Figure 15 This is a schematic diagram of the structure of the correction piece of the utility model;

[0033] Figure 16 This is a schematic diagram of the overall structure of the laser-assisted sintering device of the present invention;

[0034] Figure 17 A schematic diagram of connecting the power roller assembly of the utility model to electricity;

[0035] Figure 18 This is a structural diagram of the second transmission component - the blanking device of the utility model;

[0036] Figure 19 It is a structural schematic diagram of the blanking device of the utility model. DETAILED DESCRIPTION

[0037] To make the purpose, technical solutions, and advantages of the present invention more clear, the following will provide a clear and complete description of the technical solutions of the present invention in conjunction with specific embodiments of the present invention and the corresponding drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are also within the scope of protection of the present invention.

[0038] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0039] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0040] In the description of the present utility model, unless otherwise specified and limited, it should be noted that the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a mechanical connection or an electrical connection, or it can be the internal connection between two components. It can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances.

[0041] like Figures 1 to 19 As shown, the laser-assisted sintering system for solar cells provided by the present invention includes a loading device 100 arranged along the transmission direction of the solar cells, a first transmission component 200 and a laser-assisted sintering device 300.

[0042] The loading device 100 is used to place the battery cells to be sintered and perform the loading operation. The first transmission component 200 is used to transfer the battery cells from the loading device 100 to the laser-assisted sintering device 300. The laser-assisted sintering device 300 is used to perform laser sintering on the battery cells.

[0043] Reference Figures 5 to 13 The feeding device 100 includes a feeding transmission component 101, a feeding box 102 and a feeding component 104.

[0044] The loading and conveying assembly 101 is used to convey the cells to be processed to the first conveying assembly 200 . The loading box 102 is used to place the cells to be sintered, and the loading assembly 104 is used to move the cells to be sintered in the loading box 102 to the loading and conveying assembly 101 .

[0045] In some embodiments, the loading device 100 further includes a first track 103, which extends along the arrangement direction of the loading conveyor assembly 101 and the loading box 102. The loading assembly 104 is slidably mounted on the first track 103, and reciprocates along the first track 103 between the loading conveyor assembly 101 and the loading box 102, thereby transferring the battery cells to be processed in the loading box 102 to the loading conveyor assembly 101 for subsequent battery cell processing.

[0046] For ease of description, when the loading assembly 104 moves along the first track 103 to directly above the loading transmission assembly 101, the position of the loading assembly 104 at this time is defined as the loading position. When the loading assembly 104 moves along the first track 103 to directly above the loading box 102, the position of the loading assembly 104 at this time is defined as the unloading position.

[0047] The loading transmission assembly 101 includes a support frame 101a, a transmission belt 101b connected to the support frame 101a, and a driving motor 101c for driving the transmission belt 101b to move.

[0048] Specifically, the support frame 101a is provided with a pair of driving wheels at one end and a pair of driven wheels at the other end. The conveyor belt 101b is connected between the driving wheels. A drive shaft is connected between the driving wheels, and the output end of the drive motor 101c is connected to the drive shaft via a belt. The drive motor 101c rotates the drive shaft, which in turn rotates the driving wheels, thereby driving the conveyor belt 101b to transport the battery cells placed on the conveyor belt 101b by the loading assembly 104.

[0049] The loading transmission component 101 further includes a fifth photoelectric sensor 101d located at the starting end of the transmission belt 101b and a sixth photoelectric sensor 101e spaced apart from the fifth photoelectric sensor 101d.

[0050] The fifth photoelectric sensor 101d is located below the conveyor belt 101b and directly opposite the loading position of the loading assembly 104. Thus, when the loading assembly 104 places a cell to be processed on the conveyor belt 101b, the fifth photoelectric sensor 101d can detect the cell and control the drive motor 101c to start and transport the cell. In this embodiment, the fifth photoelectric sensor 101d is fixed to the support frame 101a.

[0051] The sixth photoelectric sensor 101e is located downstream of the fifth sensor 101d. It includes an ultrasonic transmitter and an ultrasonic receiver, respectively located above and below the conveyor belt 101b. Under normal circumstances, when a cell is transported via the conveyor belt 101b to the location of the sixth photoelectric sensor 101e, the ultrasonic transmitter emits an ultrasonic beam toward the cell. This beam causes the cell to vibrate, generating corresponding sound waves on the other side of the cell, which are received by the ultrasonic receiver. If the cell being transported to the location of the sixth photoelectric sensor 101e contains overlapping cells, the ultrasonic beam will become very weak after passing through multiple cells and will not be received by the ultrasonic receiver, thus enabling detection of overlapping cells.

[0052] In this embodiment, the sixth photoelectric sensor 101e is mounted on a fixing frame 101f, and the fixing frame 101f is located at an end of the supporting frame 101a away from the fifth photoelectric sensor 101d.

[0053] The loading box 102 is spaced apart from the loading conveyor assembly 101. Preferably, the arrangement direction of the loading box 102 and the loading conveyor assembly 101 is perpendicular to the conveying direction of the battery cells. At the same time, the extension direction of the first track 103 is perpendicular to the extension direction of the conveyor belt 101b.

[0054] The loading box 102 includes a bottom plate 102a, a plurality of limit plates 102b fixed around the bottom plate 102a, a supporting plate 102c located above the bottom plate 102a, and a lifting member 102d for driving the supporting plate 102c to move in a height direction.

[0055] The limiting plates 102b are positioned perpendicular to the bottom plate 102a. Several limiting plates 102b enclose a storage area for the battery cells to prevent the stacked battery cells from tipping over. In this embodiment, two limiting plates 102b are positioned on each side of the bottom plate 102a, with the two limiting plates 102b spaced apart.

[0056] The battery cells are stacked on the carrier plate 102c. The lifting member 102d drives the carrier plate 102c and the battery cells thereon to move vertically, allowing the loading assembly 104 to pick up the battery cells. After the loading assembly 104 removes the top battery cell, the lifting member 102d drives the carrier plate 102c to rise to a certain height, the same as the thickness of the battery cells, so that the next battery cell rises to the position of the original top battery cell. In other words, each time the loading assembly 104 moves to the removal position, the distance between the loading assembly 104 and the top battery cell remains the same.

[0057] The bottom plate 102a is provided with a first through hole 102a-1, and the lifting member 102d is located below the bottom plate 102a. The output end of the lifting member 102d is connected to the supporting plate 102c through the first through hole 102a-1.

[0058] The lifting member 102d is an electric cylinder, whose lifting shaft passes through the first through-hole 102a-1 and is connected to the supporting plate 102c. When the supporting plate 102c needs to be raised or lowered, the electric cylinder is activated to move the supporting plate 102c up or down. Of course, the lifting member 102d may also use other structures capable of moving the supporting plate 102c up or down.

[0059] The loading box 102 also includes a first photoelectric sensor 102e located below the bottom plate 102a. The carrier plate 102c is provided with a second through-hole 102c-1, which partially overlaps with the first through-hole 102a-1. The first photoelectric sensor 102e emits light in the height direction, which passes through the first through-hole 102a-1 and the second through-hole 102c-1.

[0060] The first photosensor 102e is used to detect whether there are any unprocessed cells on the carrier plate 102c. When there are unprocessed cells on the carrier plate 102c, light emitted by the first photosensor 102e passes through the first and second through holes 102a-1, 102c-1, onto the cells. After being reflected by the cells, it returns to the first photosensor 102e, thereby determining that there are still unprocessed cells on the carrier plate 102c. When there are no unprocessed cells on the carrier plate 102c, light emitted by the first photosensor 102e passes through the first and second through holes 102a-1, 102c-1, and then exits directly. The first photosensor 102e does not receive any reflected light, thus determining that there are no unprocessed cells on the carrier plate 102c and alerting the operator to perform a patching operation.

[0061] The loading box 102 also includes a plurality of air knives 102f located outside the limiting plate 102b. The air discharge direction of the air knives 102f is angled with the height direction. The air knives 102f are used to blow air toward the stacked battery cells, thereby separating the battery cells and preventing them from sticking together, which would cause the loading assembly 104 to pick up multiple battery cells at a time.

[0062] The air knife 102f comprises a fixed plate 102f-1 and a blow block 102f-2 movably mounted on the fixed plate 102f-1 in the height direction. The fixed plate 102f-1 is positioned parallel to the limiting plate 102b and is provided with a sliding groove extending in the height direction. The blow block 102f-2 is mounted within the sliding groove via a fixing bolt. The height of the blow block 102f-2 can be adjusted by moving the blow block 102f-2 along the sliding groove and then tightening the fixing bolt.

[0063] The height of the blow block 102f-2 is adjusted so that the blow port is aligned with the topmost cell. The air blown by the blow block 102f-2 can be blown toward the cells through the gaps between the limiting plates 102b. By blowing air toward the cells, the topmost cell is lifted and separated from the other cells, and then the loading assembly 104 picks up this cell, effectively preventing the loading assembly 104 from picking up multiple cells at a time.

[0064] In this embodiment, four air knives 102f are provided, arranged in pairs on opposite sides of the bottom plate 102a, and two of the air knives 102f are arranged along the diagonal lines of the battery cells to facilitate blowing up the battery cells. Preferably, the air blowing block 102f-2 blows air at an angle upward.

[0065] The loading box 102 also includes a second photoelectric sensor 102g and a third photoelectric sensor 102h located above the bottom plate 102a. The second photoelectric sensor 102g and the third photoelectric sensor 102h emit light horizontally. The second photoelectric sensor 102g is located above the air knife 102f to detect solar cells separated by the air knife 102f. The third photoelectric sensor 102h is located below the second photoelectric sensor 102g to detect solar cells that have risen to the extraction position.

[0066] When the topmost cell on the carrier plate 102c rises to the removal position, the light emitted by the third photosensor 102h is reflected by the topmost cell and returns to the third photosensor 102h. After the topmost cell is removed by the loading assembly 104, the light emitted by the third photosensor 102h is no longer blocked by the cell and is reflected back. The lifting member 102d then raises the carrier plate 102c, and the cells on the carrier plate 102c rise synchronously until the topmost cell again blocks and reflects the light emitted by the third photosensor 102h, at which point the lifting member 102d stops.

[0067] The third photoelectric sensor 102h ensures that the cell removal height remains constant, facilitating cell separation by the air knife 102f. Each time the top cell is removed by the loading assembly 104, the next cell is lifted to the same height by the lifting member 102d. This ensures that each time the loading assembly 104 moves to the removal position, the distance between the loading assembly 104 and the top cell remains constant, facilitating cell removal by the loading assembly 104.

[0068] The second photoelectric sensor 102g is located above the air knife 102f, and is used to detect the battery cells separated by the air knife 102f.

[0069] In one embodiment, the height of the second photosensor 102g is the same as the height of the cell after being normally lifted by the air knife 102f. When the third photosensor 102h detects that the cell has reached the extraction position, the air knife 102f is activated to blow air toward the cell, lifting the topmost cell and separating it from the other cells. If the light emitted by the second photosensor 102g is blocked by a cell, it indicates that the cell at the extraction position has been properly lifted, and the cell can now be removed by the loading assembly 104. If the light emitted by the second photosensor 102g is not blocked by a cell, it indicates that the cell has been blown away.

[0070] In another scenario, the height of the second photosensor 102g is greater than the height of the cell after being normally lifted by the air knife 102f. When the third photosensor 102h detects that the cell has reached the extraction position, the air knife 102f is activated to blow air toward the cell, lifting the topmost cell and separating it from the other cells. If the light emitted by the second photosensor 102g is not blocked by a cell, it indicates that the cell at the extraction position has been properly lifted, and the cell can now be removed by the loading assembly 104. If the light emitted by the second photosensor 102g is blocked by a cell, it indicates that the cell has been blown away.

[0071] The first track 103 extends along the arrangement direction of the loading conveyor assembly 101 and the loading box 102, and the loading assembly 104 reciprocates between the loading conveyor assembly 101 and the loading box 102 along the first track 103. The extension direction of the first track 103 is perpendicular to the transmission direction of the battery cells.

[0072] The first track 103 is provided with positioning sensors at the material retrieving position and the material loading position. When the material loading assembly 104 moves to the material retrieving position or the material loading position, the positioning sensors sense that the material loading assembly 104 has reached the designated position, thereby stopping the movement to perform the material retrieving and loading operations. The positioning sensors may also be photoelectric sensors.

[0073] The loading assembly 104 includes a loading suction cup 104a, a first driving member 104b for driving the loading suction cup 104a to move along the first track 103, and a fourth photoelectric sensor 104c located on the loading suction cup 104a.

[0074] The first driving member 104b drives the loading suction cup 104a to reciprocate between the pick-up position and the loading position along the first track 103. When the loading suction cup 104a reaches the pick-up position, it picks up the battery cells in the loading box 102 and then moves to the loading position, placing the picked-up battery cells on the loading conveyor assembly 101.

[0075] The bottom surface of the loading suction cup 104a is provided with a groove. When the loading suction cup 104a moves above the loading box 102, it extracts air from the groove to create a negative pressure there, allowing the battery cells to be sucked in. When the loading suction cup 104a moves above the loading conveyor assembly 101, the negative pressure in the groove is eliminated, allowing the battery cells to fall onto the loading conveyor assembly 101.

[0076] The first driving member 104b drives the loading suction cup 104a to move along the first track 103. A driving screw can be provided on the first track 103, and a nut threadedly connected to the driving screw can be provided on the loading suction cup 104a. The first driving member 104b drives the driving screw to rotate, thereby moving the loading suction cup 104a along the first track 103. Alternatively, a rack can be provided on the first track 103, and a gear meshing with the rack can be provided on the loading suction cup 104a. The first driving member 104b drives the gear to rotate, thereby moving the loading suction cup 104a along the first track 103. Of course, the present application is not limited to this, as long as the loading suction cup 104a can be moved along the first track 103.

[0077] The fourth photoelectric sensor 104c is used to detect the battery cell sucked by the loading suction cup 104a. When the loading suction cup 104a sucks the battery cell, the light emitted by the fourth photoelectric sensor 104c is blocked and reflected by the battery cell.

[0078] The loading assembly 104 also includes a second drive member 104d for driving the loading suction cup 104a to move vertically. This vertical movement allows the loading suction cup 104a to be shaken after sucking up a battery cell to prevent sticking and to shake off any stuck cells. It also allows the loading suction cup 104a to be lowered to place the battery cell onto the loading conveyor assembly 101. The second drive member 104d can be a pneumatic cylinder.

[0079] The battery cells after the stacking inspection are transferred to the location of the first transfer assembly 200 via the loading transfer assembly 101 , and then moved from the loading transfer assembly 101 to the first transfer assembly 200 .

[0080] Reference Figure 4 、 Figure 14 and Figure 15 The loading transmission component 101 and the first transmission component 200 are separately arranged.

[0081] The separate arrangement of the loading transmission component 101 and the first transmission component 200 can make the loading transmission component 101 and the first transmission component 200 have different movement states or different movement speeds.

[0082] One of the purposes of the split setting is to prevent blockage.

[0083] When the sintering process of the laser-assisted sintering device 300 is slow or abnormal, the loading and conveying assembly 101 can be stopped to stop conveying cells to the first conveying assembly 200 to prevent excessive cells from being on the first conveying assembly 200 and causing cell blockage. The loading and conveying assembly 101 controls the number of cells on the first conveying assembly 200.

[0084] The second purpose of the split setting is to reduce damage to the battery cells during transmission.

[0085] When placing the battery cells on the loading assembly 104 onto the loading conveyor assembly 101, the loading conveyor assembly 101 can remain stationary, thereby preventing the battery cells from slipping and relative sliding between the battery cells and the loading conveyor assembly 101, which could damage the battery cells. At this time, the first conveyor assembly 200 can normally transfer the battery cells to the laser-assisted sintering device 300 without affecting subsequent processes. That is, the motion states of the loading conveyor assembly 101 and the first conveyor assembly 200 are different. After placing the battery cells on the loading conveyor assembly 101, the loading conveyor assembly 101 accelerates and starts until it reaches the same operating speed as the first conveyor assembly 200, thereby smoothly transferring the battery cells to the first conveyor assembly 200.

[0086] The third purpose of the split setting is to improve the battery cell sintering efficiency of the entire equipment and maintain the consistency of the sintering process rhythm.

[0087] In the absence of the loading and transporting assembly 101, in order to prevent relative sliding between the battery cell and the first transporting assembly 200 during the transport process, it is necessary to stop the first transporting assembly 200 to receive the material, and then accelerate the first transporting assembly 200 so that it reaches the same operating speed as the laser-assisted sintering device 300. Only when the battery cell completely enters the laser-assisted sintering device 300 can the first transporting assembly 200 be stopped for the next material receiving.

[0088] Due to the presence of the loading and conveying assembly 101, it is possible to avoid frequent opening and closing of the first conveying assembly 200, and to receive materials through the loading and conveying assembly 101. The operating speed of the first conveying assembly 200 can always be kept consistent with the operating speed of the laser-assisted sintering device 300. Firstly, it can ensure that each cell on the first conveying assembly 200 can enter the laser-assisted sintering device 300 at the same speed as the laser-assisted sintering device 300; secondly, it can ensure the consistency of the running time of the cells on the first conveying assembly 200. When the loading interval is constant, it can ensure that the time interval between two adjacent cells entering the laser-assisted sintering device 300 is the same; finally, there is no need to wait for the cells to completely enter the laser-assisted sintering device 300 when loading.

[0089] In some embodiments, there is a distance between the loading transmission component 101 and the first transmission component 200, and the distance between the two is less than half the length of the battery cell that needs to be sintered.

[0090] The first transmission component 200 includes a first transmission belt 201, a correction area located on the first transmission belt 201, a seventh photoelectric sensor 202 for detecting the transmission of battery cells to the correction area, and a correction part 203 located downstream of the seventh photoelectric sensor 202 for correcting the position of the battery cells.

[0091] The first conveyor belt 201 and the feeding conveyor assembly 101 are separately provided. The transmission structure of the first conveyor belt 201 is the same as that of the feeding conveyor assembly 101, and will not be described in detail here.

[0092] The seventh photoelectric sensor 202 is used to detect cells conveyed into the correction zone. The first conveyor belt 201 is provided with a fixed plate, to which the seventh photoelectric sensor 202 is fixed. When the seventh photoelectric sensor 202 detects a cell, the correction element 203 is activated to correct the cell, preventing it from tilting or deviating, which could affect the laser sintering process.

[0093] The correction member 203 includes a correction belt 203a, a correction motor 203b for driving the correction belt 203a, and two correction blocks 203c connected to the correction belt 203a. The first transmission belt 201 is located between the two correction blocks 203c. The movement of the correction belt 203a drives the two correction blocks 203c to move toward or away from each other.

[0094] The correction motor 203b is fixed to the bracket of the first conveyor belt 201. The correction member 203 also includes a connecting wheel 203d spaced apart from the correction motor 203b. The correction belt 203a is connected between the output end of the correction motor 203b and the connecting wheel 203d. The arrangement direction of the correction motor 203b and the connecting wheel 203d is perpendicular to the transmission direction of the battery cell, and the distance between them is greater than the width of the first conveyor belt 201. The two correction blocks 203c are respectively connected to two opposite sections of the correction belt 203a, so that when the correction belt 203a moves, the two correction blocks 203c move toward or in opposite directions. The correction block 203c is provided with a plurality of correction wheels, which are spaced apart along the transmission direction of the battery cell to correct the battery cell.

[0095] Under normal conditions, the distance between the two correction blocks 203c is greater than the width of the first conveyor belt 201, and the two correction blocks 203c are at the same distance from the first conveyor belt 201. The battery cell can move along the first conveyor belt 201 to between the two correction blocks 203c.

[0096] When the seventh photoelectric sensor 202 detects a battery cell, the battery cell moves exactly between the two correction blocks 203c. At this point, the correction motor 203b is activated to drive the correction belt 203a. The movement of the correction belt 203a drives the two correction blocks 203c on it to move toward each other, that is, simultaneously toward the battery cell. If the battery cell is deviating or tilted, at least part of the correction wheel of one of the correction blocks 203c will first contact the battery cell and push the battery cell toward the other correction block 203c until the spacing between the two correction blocks 203c matches the width of the battery cell. The correction motor 203b then stops, completing the correction of the battery cell.

[0097] After correction, the central axis of the cell coincides with the central axis of the first conveyor belt 201. The two correction blocks 203c maintain this state. Under the guidance of the correction wheels, the cell enters the laser-assisted sintering device 300 in a corrected state, thereby preventing the cell from entering the laser-assisted sintering device 300 in a skewed or tilted state, which would affect the sintering quality.

[0098] When the seventh photoelectric sensor 202 fails to detect a cell, the cell leaves the correction range of the correction member 203. The correction motor 203b is then activated again, driving the correction belt 203a to move. The movement of the correction belt 203a drives the two correction blocks 203c on it to move in opposite directions and return to their initial state.

[0099] Reference Figure 16 and Figure 17 The laser-assisted sintering device 300 includes a laser assembly 301 for emitting laser light to the cell, and a powered roller assembly 302 for moving the cell and applying a reverse voltage to the cell. The powered roller assemblies 302 are spaced apart along the cell transport direction and can simultaneously apply a reverse voltage to the cell and move the cell.

[0100] The power roller assembly 302 includes a first roller assembly 302a and a second roller assembly 302b arranged in a height direction, with the battery cell positioned between the first roller assembly 302a and the second roller assembly 302b. The first roller assembly 302a and / or the second roller assembly 302b can be driven to rotate by an external device such as a motor, thereby driving the battery cell to move.

[0101] The first roller assembly 302a contacts the lower surface of the battery cell, and the second roller assembly 302b contacts the upper surface of the battery cell. The first roller assembly 302a and the second roller assembly 302b are respectively connected to the positive and negative poles of the power supply to apply reverse voltage to the battery cell.

[0102] The laser assembly 301 is used to emit laser light between the two sets of powered roller assemblies 302. The laser light irradiates the solar cells, which are subjected to reverse voltage. The laser light has a certain radiation area. When the solar cells pass through the laser radiation area, an induced current is generated. When the current flows through the area with high contact resistance, it generates higher temperatures, which acts like sintering, thereby reducing the contact resistance.

[0103] In this embodiment, the laser assembly 301 is located above the powered roller assembly 302. Of course, in other embodiments, it can also be located below the powered roller assembly 302.

[0104] The laser-assisted sintering device 300 further includes an eighth photoelectric sensor 303, which is located upstream of the laser assembly 301. The eighth photoelectric sensor 303 is used to detect the solar cell being transferred to the powered roller assembly 302. When the eighth photoelectric sensor 303 detects a solar cell, the laser assembly 301 is turned on and the powered roller assembly 302 is energized.

[0105] The laser-assisted sintering equipment further includes a material unloading device 400 located downstream of the laser-assisted sintering device 300 .

[0106] Reference Figure 18 and Figure 19 The unloading device 400 includes an unloading transmission component 401, a unloading box 402 spaced apart from the unloading transmission component 401, a second track 403 extending along the arrangement direction of the unloading transmission component 401 and the unloading box 402, and a unloading component 404 slidably mounted on the second track 403.

[0107] The battery cells sintered by the laser-assisted sintering device 300 are transferred to the unloading transmission component 401. The unloading transmission component 401 is used to transfer the processed battery cells. The unloading component 404 moves back and forth between the unloading transmission component 401 and the unloading box 402 along the second track 403, thereby transferring the battery cells sintered on the unloading transmission component 401 to the unloading box 402.

[0108] The structure of the unloading transmission component 401 is the same as the transmission structure of the loading transmission component 101, the second track 403 and the first track 103 have the same structure and are parallel to each other, and the structure of the unloading component 404 and the loading component 104 are the same, which will not be repeated here.

[0109] Similarly, when the unloading assembly 404 moves along the second track 403 to the position directly above the unloading transmission assembly 401, the unloading assembly 404 is at the material taking position. When the unloading assembly 404 moves along the second track 403 to the position directly above the unloading box 402, the unloading assembly 404 is at the unloading position.

[0110] The unloading box 402 is tilted, with a baffle installed on at least one edge at its lowest point. When the unloading assembly 404 places the sintered cells into the unloading box 402, the cells slide down the unloading box 402 until they reach the baffle. This automatically stacks the cells neatly and prevents them from tipping over. Furthermore, precise alignment of the unloading box 402 and the unloading assembly 404 is eliminated.

[0111] A sensor is provided in the blanking box 402 to detect whether there are battery cells in the blanking box 402 .

[0112] The unloading box 402 includes a first unloading box 402a and a second unloading box 402b, with the unloading transmission assembly 401 positioned between the first unloading box 402a and the second unloading box 402b. Both the first unloading box 402a and the second unloading box 402b can be used to hold sintered solar cells. Both the first unloading box 402a and the second unloading box 402b can be tilted. In this embodiment, the first unloading box 402a is used to hold good solar cells, while the second unloading box 402b is used to hold defective solar cells.

[0113] The laser sintering equipment further includes a second transmission assembly 500, which is located between the laser-assisted sintering device 300 and the unloading device 400 to transfer the cell after passing through the laser-assisted sintering device 300 to the unloading device 400 via the second transmission assembly 500. The structure of the second transmission assembly 500 is the same as that of the first transmission assembly 200 and will not be repeated here.

[0114] By adding the second transmission assembly 500 between the laser-assisted sintering device 300 and the unloading device 400, when the battery cell on the unloading transmission assembly 401 is transferred to the material removal position, the unloading transmission assembly 401 can be stopped to allow the unloading assembly 404 to pick up the battery cell. At this time, the second transmission assembly 500 can maintain the same transmission speed as the powered roller assembly 302, thereby preventing the battery cell transferred from the powered roller assembly 302 from being unable to be properly transferred to the second transmission assembly 500, or preventing the battery cell transferred from the powered roller assembly 302 from sliding friction with the second transmission assembly 500, causing damage to the battery cell.

[0115] Reference Figure 3 The laser sintering equipment of this application utilizes a segmented transmission system, specifically a five-segment transmission system, comprising, in order, the loading transmission assembly 101, the first transmission assembly 200, the powered roller assembly 302, the second transmission assembly 500, and the unloading transmission assembly 401. This five-segment transmission system can accelerate the sintering efficiency of the cell, maintain a consistent sintering rhythm, and minimize damage to the cell.

[0116] The following is a detailed description of the laser sintering process of this equipment:

[0117] Loading steps: Place the battery cells to be processed in the loading box 102, move the loading component 104 to the loading position and suck the battery cells, move the loading component 104 to the loading position and place the battery cells on the loading transmission component 101, start the loading transmission component 101 to drive the battery cells to the first transmission component 200.

[0118] Primary transfer step: Maintaining the same transfer speeds as the loading conveyor assembly 101 and the first conveyor assembly 200, the battery cells are smoothly transferred to the first conveyor assembly 200, and the loading conveyor assembly 101 is closed. The battery cells are transferred to the correction area, where the correction components 203 correct their position.

[0119] Laser sintering step: Maintaining the same transmission speeds as the first transmission assembly 200 and the powered roller assembly 302, the cell is smoothly transferred to the powered roller assembly 302. The next loading step can now proceed. The laser assembly 301 is turned on, and the powered roller assembly 302 is energized to perform laser sintering on the cell.

[0120] Secondary transfer step: Keep the transmission speed of the power roller assembly 302 and the second transmission assembly 500 the same, and smoothly transfer the sintered battery cells to the second transmission assembly 500. Secondary correction is performed by the correction piece on the second transmission assembly 500.

[0121] Unloading step: Maintaining the same transmission speed as the second conveyor assembly 500 and the unloading conveyor assembly 401, the battery cells are transported to the unloading position, and the unloading conveyor assembly 401 is stopped. The unloading assembly 404 is moved to the unloading position and sucks in the battery cells. The unloading assembly 404 is moved to the unloading position and places the battery cells in the unloading box 402.

[0122] In summary, the present invention can effectively prevent blockage during the sintering process and reduce damage to the battery cells during the transmission process by separating the loading and transmission component 101 from the first transmission component 200.

[0123] It should be understood that although this specification is described according to embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0124] The series of detailed descriptions listed above are only specific descriptions of feasible embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any equivalent embodiments or changes that do not depart from the technical spirit of the present invention should be included in the scope of protection of the present invention.

Claims

1. A cell laser-assisted sintering system, comprising a loading device (100) arranged along a cell transport direction and a laser-assisted sintering device (300), characterized in that: The invention also includes a first transmission component (200) for transmitting the battery cell from the loading device (100) to the laser-assisted sintering device (300), wherein the loading device (100) includes a loading transmission component (101), and the loading transmission component (101) and the first transmission component (200) are separately arranged.

2. The cell laser-assisted sintering system according to claim 1, characterized in that: The loading device (100) further comprises a loading box (102) and a loading component (104) for moving the battery cells from the loading box (102) to the loading transmission component (101); A carrying plate (102c) that can be raised and lowered and adjusted in the height direction is provided in the loading box (102), and the loading assembly (104) includes a loading suction cup (104a).

3. The cell laser-assisted sintering system according to claim 1, characterized in that: The first transmission component (200) comprises a first transmission belt (201), a correction zone located on the first transmission belt (201), a seventh photoelectric sensor (202) provided in the correction zone for detecting the transmission of a battery cell to the correction zone, and a correction member (203) located downstream of the seventh photoelectric sensor (202) for correcting the position of the battery cell.

4. The cell laser-assisted sintering system according to claim 3, characterized in that: The correction member (203) includes a correction belt (203a), a correction motor (203b) for driving the correction belt (203a) to move, and two correction blocks (203c) connected to the correction belt (203a); the first transmission belt (201) is located between the two correction blocks (203c); and the movement of the correction belt (203a) drives the two correction blocks (203c) to move toward or in opposite directions.

5. The cell laser-assisted sintering system according to claim 1, characterized in that: The laser-assisted sintering device (300) comprises a laser assembly (301) for emitting laser light to a battery cell, and a powered roller assembly (302) for driving the battery cell to move and applying a reverse voltage to the battery cell.

6. The cell laser-assisted sintering system according to claim 5, characterized in that: The laser-assisted sintering device (300) further includes an eighth photoelectric sensor (303) for detecting the transmission of the battery sheet to the powered roller assembly (302), and the eighth photoelectric sensor (303) is located upstream of the laser assembly (301).

7. The cell laser-assisted sintering system according to claim 1, characterized in that: The invention also includes a material unloading device (400) located downstream of the laser-assisted sintering device (300), wherein the material unloading device (400) includes a material unloading transmission component (401), a material unloading box (402), and a material unloading component (404) for moving the battery cell from the material unloading transmission component (401) to the material unloading box (402).

8. The cell laser-assisted sintering system according to claim 7, characterized in that: The material box (402) includes a first material box (402a) and a second material box (402b), and the material delivery transmission component (401) is located between the first material box (402a) and the second material box (402b); The first blanking box (402a) and / or the second blanking box (402b) are arranged at an angle, and a baffle is provided on the edge of at least one side at the lowest point.

9. The cell laser-assisted sintering system according to claim 7, characterized in that: A sensor is provided in the blanking box (402) to detect the number of battery cells in the blanking box (402).

10. The cell laser-assisted sintering system according to claim 7, characterized in that: It also includes a second transmission component (500) for transmitting the battery sheet from the laser-assisted sintering device (300) to the blanking transmission component (401), and the blanking transmission component (401) and the second transmission component (500) are separately arranged.

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