Battery dicing apparatus

Abstract

This application relates to a battery dicing device, including dicing suction cups, a rotating support, and a laser dicing mechanism. The rotating support is rotatable about a vertical direction, and multiple dicing suction cups are axially spaced around the rotating support. At least two dicing stations are arranged along the rotation path of the dicing suction cups, and a set of laser dicing mechanisms is configured for each dicing station. The number of cutting heads in each set of laser dicing mechanisms is different. The battery dicing device of this application can be matched with different dicing processes, improving the dicing efficiency of the battery dicing device.

Description

Technical Field

[0001] This application relates to the field of solar cell technology, and in particular to a cell dicing apparatus. Background Technology

[0002] In photovoltaic module manufacturing, "half-cell technology" has become mainstream. To reduce series resistance loss, hot spot effect, and power loss caused by microcracks, standard-sized complete solar cells (such as 182mm or 210mm) are typically precisely cut into multiple equal sub-cells (such as 1 / 2, 1 / 3, or 1 / 4 cells) using laser dicing technology, and then connected in series and parallel to form modules. In related technologies, a single dicing device can only perform a single dicing action to cut equal sub-cells (such as 1 / 2, 1 / 3, or 1 / 4 cells), making it unable to achieve multiple uses and resulting in low utilization. Utility Model Content

[0003] Therefore, it is necessary to provide a battery sizing device to address the issue of the limited functionality of battery sizing devices.

[0004] A battery sizing device (1000) includes:

[0005] Slicing suction cup (100);

[0006] A rotating bracket (400) is rotatably arranged around the vertical direction. A plurality of dicing suction cups (100) are arranged at intervals around the axial direction (Z) of the rotating bracket (400). At least two dicing stations (W2) are arranged on the rotation path of the dicing suction cups (100).

[0007] A laser scribing mechanism (200) is configured for each scribing station (W2), and the number of cutters in each set of laser scribing mechanisms (200) is different.

[0008] In some embodiments, the laser scribing mechanism (200) includes a laser generator (210), a scanning lens (220) disposed on the laser generator (210), at least one laser scribing head (230), and a dicing cooling tube (240). Each laser scribing head (230) is provided with a dicing cooling tube (240), which is used to spray cooling material onto the battery cells on the scribing suction cup (100).

[0009] In some embodiments, the dicing suction cup (100) includes an adsorption surface (121) and a hollow area (111) that runs vertically through the dicing suction cup (100), and a feeding station (W1) is provided on the rotation path of the dicing suction cup (100).

[0010] The battery dicing device (1000) also includes a feeding mechanism (300), which is arranged below the dicing suction cup (100) located at the feeding station (W1);

[0011] The feeding mechanism (300) includes a lifting assembly (310) and a conveying assembly (320). The conveying assembly (320) includes a plurality of conveying rollers (321) arranged in parallel. The conveying rollers (321) are arranged vertically and vertically corresponding to the hollow area (111). The lifting assembly (310) is connected to the conveying assembly (320) and can drive the conveying assembly (320) to rise and fall, so as to drive all the conveying rollers (321) to pass through the hollow area (111) and support the battery cells adsorbed on the adsorption surface (121). All the conveying rollers (321) are configured to rotate in the same direction to drive the supported battery cells away from the dicing suction cup (100).

[0012] In some embodiments, the slicing suction cup (100) includes a frame (110) and a support (120), the frame (110) enclosing the hollow area (111), the support (120) connecting the frame (110), and its vertical projection intersecting the hollow area (111);

[0013] At least a portion of the support portion (120) has the adsorption surface (121);

[0014] The support portion (120) is located within the hollow area (111), and the upper surface of each support portion (120) is flush with the upper surface of the frame (110).

[0015] In some embodiments, a plurality of conveying rollers (321) are arranged sequentially along a first direction (Y) perpendicular to the axial direction (X) of the conveying rollers (321); a plurality of support portions (120) are arranged at intervals along the first direction (Y) within the hollowed-out area (111), and each hollowed-out area (111) portion located between two adjacent support portions (120) along the first direction (Y) and between the support portion (120) and the frame (110) is respectively provided with a conveying roller (321).

[0016] In some embodiments, the frame (110) is provided with reinforcing ribs (112).

[0017] In some embodiments, the adsorption surface (121) is provided with a buffer pad.

[0018] In some embodiments, the conveying assembly (320) includes two carrier plates (322) spaced apart along the axial (X) direction of the conveying roller (321), each carrier plate (322) being provided with a plurality of the conveying rollers (321) spaced apart along a first direction (Y) perpendicular to the axial (X) direction of the conveying roller (321).

[0019] The conveying assembly (320) further includes a transition roller (323), a conveyor belt (324), and a rotating power component (325), wherein the conveyor belt (324) connects all the transition rollers (323) and the conveyor roller (321), and the rotating power component (325) is connected to one of the transition rollers (323);

[0020] In each of the carrier plates (322), a portion of the transition rollers (323) are arranged along the first direction (Y) between two adjacent conveyor rollers (321) and are positioned below the conveyor rollers (321).

[0021] In some embodiments, the lifting assembly (310) includes a base plate (311) and a lifting drive (312), wherein the lifting drive (312) is connected to the base plate (311) and is used to drive the base plate (311) to move up and down;

[0022] Two carrier plates (322) are disposed on the substrate (311), and at least one of the carrier plates (322) is movably disposed parallel to the axial direction (X) of the conveyor roller (321) to change the distance between the two carrier plates (322).

[0023] In some embodiments, the feeding mechanism (300) includes a first motor (331) and a first lead screw (332), the first motor (331) being arranged between two carrier plates (322), each carrier plate (322) being connected to the first lead screw (332) via a lead screw pair; and / or,

[0024] The substrate (311) is provided with a slide rail (311a) arranged parallel to the axial direction (X) of the conveying roller (321), and the carrier plate (322) is provided with a slider (322a), which is slidably disposed on the slide rail (311a).

[0025] In some embodiments, the battery dicing device (1000) includes a detection mechanism (500) and a feeding mechanism (600);

[0026] The dicing suction cup (100) has a loading station (W3) located upstream of the dicing station (W2). The loading mechanism (600) is used to transport the battery cells to the dicing suction cup (100) at the loading station (W3). The detection mechanism (500) includes a detection camera (510) for detecting the battery cells.

[0027] The detection camera (510) includes a CCD camera (511) and a PL camera (512); and / or, the detection mechanism (500) further includes a protective cover (520) covering the detection camera (510).

[0028] In some embodiments, the battery dicing device (1000) further includes a kicking mechanism (700), and a kicking station (W4) is provided on the rotation path of the dicing suction cup (100). The kicking mechanism (700) is arranged corresponding to the kicking station (W4), and the kicking station (W4) is located between the dicing station (W2) and the loading station (W3).

[0029] The aforementioned battery dicing device can be matched with laser dicing mechanisms with different cutting heads to perform dicing processing according to different dicing requirements. It can not only match different dicing processes, but also improve the utilization rate of the laser dicing mechanism and improve the dicing efficiency of the battery dicing device, making the dicing requirements that the battery dicing device can adapt to more diversified. Attached Figure Description

[0030] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiments below. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0031] Figure 1 A top view of a battery sizing apparatus according to some embodiments;

[0032] Figure 2 for Figure 1 Left view of the battery sizing device shown;

[0033] Figure 3 The front view of the battery sizing device shown in Figure 1;

[0034] Figure 4 for Figure 1 A partial structural schematic diagram of the battery sizing device is shown.

[0035] The reference numerals in the detailed embodiments are as follows:

[0036] 1000. Battery dicing device; X. Axis of the conveyor roller; Y. First direction; Z. Axis of the rotating bracket; 100. Dicing suction cup; 110. Frame; 111. Hollowed-out area; 112. Reinforcing rib; 120. Support part; 121. Adsorption surface; 121a. Adsorption hole; 200. Laser dicing mechanism; 210. Laser generator; 220. Scanning lens; 230. Laser dicing cutter head; 240. Dicing cooling pipe; 300. Unloading mechanism; 310. Lifting assembly; 311. Substrate; 311a. Slide rail; 312. Lifting drive component; 312a. Second motor; 312b 320. Second lead screw; 321. Conveying assembly; 322. Conveying roller; 322. Carrier plate; 322a. Slider; 323. Transition roller; 324. Conveyor belt; 325. Rotating power component; 331. First motor; 332. First lead screw; 400. Rotating bracket; W1. Unloading station; W2. Dicing station; W3. Loading station; W4. Kicking station; 500. Detection mechanism; 510. Detection camera; 511. CCD camera; 512. PL camera; 520. Protective cover; 600. Loading mechanism; 610. Loading suction cup; 700. Kicking mechanism; 710. Kicking suction cup. Detailed Implementation

[0037] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0038] In the description of this application, it should be understood that, where they appear, the terms “center,” “longitudinal,” “lateral,” “length,” “width,” “thickness,” “upper,” “lower,” “front,” “rear,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” “outer,” “clockwise,” “counterclockwise,” “axial,” “radial,” and “circumferential” indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0039] Furthermore, where applicable, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0040] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," "fixing," etc., shall be interpreted broadly. For example, they may refer to a fixed connection, a detachable connection, or an integral part; they may refer to a mechanical connection or an electrical connection; they may refer to a direct connection or an indirect connection through an intermediate medium; they may refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0041] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0042] It should be noted that, if an element is described as "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is described as "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0043] To improve the utilization rate of the battery sizing device 1000, this application proposes a battery sizing device 1000. Please refer to... Figure 1The battery dicing device 1000 includes a dicing suction cup 100, a rotating bracket 400, and a laser dicing mechanism 200. The rotating bracket 400 is rotatably arranged around the vertical direction, and multiple dicing suction cups 100 are arranged at Z-intervals around the rotating bracket 400. At least two dicing stations W2 are provided on the rotation path of the dicing suction cup 100, and a set of laser dicing mechanisms 200 is configured for each dicing station W2. The number of cutters in each set of laser dicing mechanisms 200 is different.

[0044] The slicing suction cup 100 is used to adsorb the battery cell. It is provided with an adsorption surface 121 and an adsorption hole 121a. The adsorption hole 121a is connected to a negative pressure generator, so that the negative pressure acts on the battery cell through the adsorption hole 121a, thereby adsorbing the battery cell onto the adsorption surface 121.

[0045] The rotating bracket 400 rotates in the vertical direction, which drives each dicing suction cup 100 to rotate. Each dicing suction cup 100 can stay on the dicing station W2, so that the laser dicing mechanism 200 can dicing the battery cells on the dicing suction cup 100.

[0046] Understandably, the laser dicing mechanism 200 includes a laser dicing head 230 for performing laser dicing operations. Each set of laser dicing mechanisms 200 has a different number of heads. Laser dicing mechanisms 200 with different heads can be used to perform different dicing processes. For example, a single-head laser dicing mechanism 200 is used for bisectioning. A double-head laser dicing mechanism 200 is used for trisectioning, quadrisectioning, etc. Even a three-head laser dicing mechanism 200 can be configured for quadrisectioning. In one embodiment, two sets of laser dicing mechanisms 200 are configured, one set being a single-head mechanism primarily used for bisectioning, and the other set being a double-head mechanism primarily used for quadrisectioning.

[0047] In practical applications, the suction cup can be controlled to rotate to the corresponding dicing station W2 according to the dicing requirements of the solar cells, where the cells are diced by the corresponding laser dicing mechanism 200. For example, if the solar cell needs to be diced in two, the suction cup is controlled to rotate to the dicing station W2 corresponding to the single-head laser dicing mechanism 200. If the solar cell needs to be diced in three or four parts, the suction cup is controlled to rotate to the dicing station W2 corresponding to the double-head laser dicing mechanism 200.

[0048] At this time, the battery dicing device 1000 can be matched with a laser dicing mechanism 200 with different cutting heads to perform dicing processing according to different dicing requirements. This not only matches different dicing processes, but also improves the utilization rate of the laser dicing mechanism 200 and the dicing efficiency of the battery dicing device 1000, making the dicing requirements that the battery dicing device 1000 can adapt to more diversified.

[0049] In some embodiments, refer to Figure 2 The laser scribing mechanism 200 includes a laser generator 210, a scanning lens 220, a laser scribing head 230, and a dicing cooling pipe 240 disposed on the laser generator 210. At least one laser scribing head 230 is provided, and each laser scribing head 230 is provided with a dicing cooling pipe 240, which is used to spray cooling material onto the battery cells on the scribing suction cup 100.

[0050] The laser scribing head 230 guides the laser generated by the laser generator 210 to bombard the solar cell along a specific scribing path, thereby creating scribing marks of a specific pattern on the solar cell and cutting it into the required number and shape of sub-solar cells. The scanning lens 220 is used to scan the scribing suction cup 100 table surface located at the scribing station W2, so that the controller in the laser scribing device can accurately control the laser scribing head 230 to align with the area to be scribed on the solar cell in conjunction with the set scribing process.

[0051] Specifically, a set of laser scribing mechanisms 200 may include one, two, or even more laser scribing heads 230. In one embodiment, one set of laser scribing mechanisms 200 has a single scribing head, i.e., one laser scribing head 230 is configured, while another set of laser scribing mechanisms 200 has two scribing heads, i.e., two laser scribing heads 230 are configured. In practical applications, if the laser scribing mechanism 200 is configured with a single scribing head, it can be used for bi-slicing of solar cells. If the laser scribing mechanism 200 is configured with two scribing heads, it can be used for slicing solar cells into three-slice or four-slice sections, etc., with high scribing efficiency. Of course, the single-slice laser scribing mechanism 200 can also perform three-slice or four-slice scribing.

[0052] The cooling material ejected from the dicing cooling pipe 240 can be either cooling gas or cooling liquid. It is used to spray cooling material onto the dicing marks obtained by the laser dicing head 230, utilizing the principle of thermal expansion and contraction to split the solar cells along the dicing marks, ensuring effective cell separation. During this process, the solar cells remain adhered to the dicing suction cup 100. The dicing cooling pipe 240 is arranged adjacent to the laser dicing head 230, and it can release cooling material during or after the laser dicing head 230 has finished dicing.

[0053] In some embodiments, combined with Figure 3 and Figure 4The dicing suction cup 100 includes an adsorption surface 121 and a through-hole area 111. A feeding station W1 is provided on the rotation path of the dicing suction cup 100. The battery dicing device 1000 also includes a feeding mechanism 300, which is arranged below the dicing suction cup 100 located at the feeding station W1. The feeding mechanism 300 includes a lifting assembly 310 and a conveying assembly 320. The conveying assembly 320 includes a plurality of parallel conveying rollers 321, which are vertically corresponding to the through-hole area 111. The lifting assembly 310 is connected to the conveying assembly 320 and can drive the conveying assembly 320 to rise and fall, so that all the conveying rollers 321 pass through the through-hole area 111 and support the battery cells adsorbed on the adsorption surface 121. All the conveying rollers 321 are configured to rotate in the same direction to drive the supported battery cells away from the dicing suction cup 100.

[0054] The hollowed-out area 111 is arranged vertically and vertically, corresponding to the conveyor roller 321 of the feeding mechanism 300. Thus, when the conveyor roller 321 is driven to rise and fall by the lifting assembly 310, it can smoothly pass through the hollowed-out area 111 and lift the sub-cells on the adsorption surface 121. Optionally, the dicing suction cup 100 is configured with multiple hollowed-out areas 111, each hollowed-out area 111 being independently arranged or interconnected. At least one conveyor roller 321 is arranged below each hollowed-out area 111.

[0055] When the dicing suction cup 100 is located at the unloading station W1, the unloading mechanism 300 is located below it. To achieve synchronous and unidirectional rotation of all conveyor rollers 321, in one embodiment, a drive motor can be configured for each conveyor roller 321. In another embodiment, a drive motor is configured for all conveyor rollers 321, and this drive motor is connected to each conveyor roller 321 via a transmission structure.

[0056] In practical applications, the battery cells to be diced are placed on the adsorption surface 121 of the dicing suction cup 100 and adsorbed onto the adsorption surface 121. Then, the laser dicing mechanism 200 performs laser dicing on the battery cells on the adsorption surface 121 according to a set dicing method, dividing the battery cells into multiple sub-cells. Afterward, the dicing suction cup 100 stops adsorbing the sub-cells, and the lifting component 310 drives all the conveyor rollers 321 to rise, so that the conveyor rollers 321 pass through the hollow area 111 from bottom to top. When the upper surface of the conveyor rollers 321 is higher than the adsorption surface 121, each sub-cell is supported between adjacent conveyor rollers 321. Then, each conveyor roller 321 rotates synchronously, and the rotating conveyor rollers 321 sequentially send each sub-cell away from the dicing suction cup 100, realizing rapid unloading of sub-cells and improving the unloading efficiency of the battery dicing device 1000. Moreover, the hollow area 111 can also reduce the weight of the suction cup.

[0057] It is worth noting that when the dicing suction cup 100 is movable, when the dicing suction cup 100 is in the unloading station W1, its position remains unchanged until the unloading is completed and the conveyor roller 321 descends to exit the hollowing area 111, at which point the dicing suction cup 100 can move to other stations.

[0058] In some embodiments, refer to Figure 4 The slicing suction cup 100 includes a frame 110 and a support portion 120. The frame 110 encloses a hollow area 111, and the support portion 120 is connected to the frame 110, with its vertical projection intersecting the hollow area 111. At least a portion of the support portion 120 has an adsorption surface 121.

[0059] The support portion 120 and the frame 110 can be integrally connected or separately configured. In one embodiment, the frame 110 encloses a square shape, and the hollow area 111 is square. The vertical projection of the hollow portion is its projection along the vertical direction. In order for the vertical projection of the hollow portion to intersect with the hollow area 111 (i.e., the vertical projection is at least partially located in the hollow area 111), the support portion 120 can be connected to the inner wall of the frame 110 and extend into the hollow area 111, or it can be connected to the upper wall of the frame 110 and located above part of the hollow area 111. Specifically, the support portion 120 can be sheet-like, plate-like, block-like, etc. In one embodiment, the support portion 120 has a strip-like structure.

[0060] The support portion 120 is used to support the battery cell, and at least a portion of the support portion 120 has the aforementioned adsorption surface 121 as an adsorption portion, which can adsorb the battery cell. In one embodiment, all support portions 120 have an adsorption surface 121.

[0061] At this point, the slitting suction cup 100 is obtained by combining the frame 110 and the support part 120. The slitting suction cup 100 has a simple structure and low processing cost.

[0062] In one specific embodiment, reference is made to Figure 4 The support portion 120 is located within the hollow area 111, and the upper surface of each support portion 120 is flush with the upper surface of the frame 110. On one hand, the support portion 120 is located within the hollow area 111, utilizing the space occupied by the frame 110 in the vertical direction to arrange the support portion 120, thus reducing the space occupied by the dicing suction cup 100. On the other hand, the upper surfaces of both the support portion 120 and the frame 110 are flush. The frame 110 supports the area around the battery cell, while the support portion 120 supports the center of the battery cell. The combination of the frame 110 and the support portion 120 provides more reliable support for the battery cell, effectively preventing the battery cell from changing shape due to insufficient support, which could lead to reduced dicing accuracy.

[0063] Further in the embodiments, refer to Figure 3 and Figure 4Multiple conveyor rollers 321 are arranged sequentially along the first direction Y, which is perpendicular to the axial direction X of the conveyor rollers 321. Multiple support portions 120 are arranged at intervals along the first direction Y in the hollow area 111. Conveyor rollers 321 are respectively arranged in each hollow area 111 between two adjacent support portions 120 along the first direction Y and between the support portion 120 and the frame 110.

[0064] Understandably, the axial directions X of each conveying roller 321 are parallel to each other, and multiple conveying rollers 321 are spaced apart along the first direction Y (horizontal direction) to realize the conveying of the battery cells. At this time, multiple support parts 120 are arranged at intervals along the first direction Y in the hollow area 111. This not only effectively supports multiple areas of the battery cells in the first direction Y, but also allows the conveying rollers 321 to pass through the hollow area 111 between adjacent support parts 120, and the conveying rollers 321 can also pass through the hollow area 111 between the support parts 120 at the edge and the frame 110. The conveying rollers 321 are arranged relatively densely, which can effectively prevent the sub-battery cells from falling out of the hollow area 111 due to insufficient size. This ensures that the sub-battery cells can be supported by at least two conveying rollers 321 in any state and will not fall out of the hollow area 111, making the sub-battery cell feeding more reliable.

[0065] In one embodiment, reference is made to... Figure 4 The frame 110 is square in shape, and the slicing suction cup 100 includes two rows of support portions 120. One row of support portions 120 is spaced apart along a first direction Y on one of the inner walls of the frame 110, and the other row of support portions 120 is spaced apart along the first direction Y on another opposite inner wall of the frame 110. The two rows of support portions 120 are arranged opposite each other and spaced apart along a second direction. In this case, the first direction Y corresponds to the length direction of the frame 110, and the second direction (parallel to the X direction) corresponds to the width direction of the frame 110. In another example, the frame 110 is square in shape, and the slicing suction cup 100 includes a row of support portions 120. This row of support portions 120 is spaced apart along the first direction Y on the inner wall of the frame 110, and each support portion 120 is connected to both inner walls of the frame 110 in the second direction. In this case, the support portions 120 can not only adsorb and support the battery cells, but also strengthen the frame 110 and improve the structural rigidity of the slicing suction cup 100.

[0066] In some embodiments, refer to Figure 4A reinforcing rib 112 is provided on the frame 110. Optionally, the reinforcing rib 112 is arranged longitudinally along the second direction, and both ends of its extension direction are connected to the frame 110 (such as the inner walls of both sides of the frame 110). Alternatively, the reinforcing rib 112 is arranged at the corner of the frame 110, forming a triangular connection with the corner. In one embodiment, the reinforcing rib 112 is located within the hollow area 111. In another embodiment, the reinforcing rib 112 is located outside the hollow area 111. Regardless of the arrangement of the reinforcing rib 112, it should not interfere with the conveyor roller 321 passing through the hollow area 111.

[0067] At this time, the reinforcing ribs 112 are provided on the frame 110 to strengthen the frame 110 and improve the structural rigidity of the dicing suction cup 100, so that the dicing suction cup 100 can more reliably adsorb and support the battery cells.

[0068] In some embodiments, a buffer pad (not shown) is provided on the adsorption surface 121. The buffer pad can be a flexible pad with a certain cushioning effect, such as a silicone pad or a rubber pad. The buffer pad should be positioned away from the adsorption hole 121a to avoid affecting the adsorption effect. In practical applications, the dicing suction cup 100 flexibly contacts the battery cell through the buffer pad, which can reduce the problem of scratches and bumps on the surface of the battery cell. Moreover, the buffer pad can play a sealing role, ensuring that the adsorption surface 121 can effectively adsorb the battery cell without air leakage.

[0069] In some embodiments, refer to Figure 3 and Figure 4 The conveying assembly 320 includes two carrier plates 322 spaced apart along the axial direction X of the conveying rollers 321. Each carrier plate 322 is provided with a plurality of conveying rollers 321 spaced apart along a first direction Y perpendicular to the axis of the conveying rollers 321. The conveying assembly 320 also includes transition rollers 323, a conveyor belt 324, and a rotating power member 325. The conveyor belt 324 connects all the transition rollers 323 and the conveying rollers 321, and the rotating power member 325 is connected to one of the transition rollers 323. On each carrier plate 322, a portion of the transition rollers 323 are arranged along the first direction Y between two adjacent conveying rollers 321 and are positioned below the conveying rollers 321.

[0070] Each carrier plate 322 is generally vertically arranged and spaced apart along the first direction Y. Each carrier plate 322 is provided with a set of conveying components 320, including multiple conveying rollers 321 arranged at intervals along the first direction Y. In one embodiment, the conveying rollers 321 on two carrier plates 322 are arranged one-to-one correspondingly along the first direction Y. In practical applications, corresponding two conveying rollers 321 can support different areas of the same sub-cell along the first direction Y, and of course, they can also support different sub-cells, depending on the specific dicing process.

[0071] Each conveyor assembly 320 includes, in addition to the conveyor rollers 321, transition rollers 323, a conveyor belt 324, and a rotating power component 325. Both the conveyor rollers 321 and the transition rollers 323 are rotatably mounted on the carrier plate 322. The conveyor belt 324 can be a belt, chain, or other strip-shaped component. In the same conveyor assembly 320, the conveyor belt 324 connects all the conveyor rollers 321 and all the transition rollers 323. One of the transition rollers 323 is connected to the rotating power component 325 and rotates under the drive of the rotating power component 325. This transition roller 323 acts as the driving roller, driving all the conveyor rollers 321 and the remaining transition rollers 323 to rotate synchronously via the conveyor belt 324. The rotating power component 325 can be, but is not limited to, a motor.

[0072] In each carrier plate 322, at least one transition roller 323 is provided between every two adjacent conveyor rollers 321, and this transition roller 323 is set lower than the conveyor rollers 321. At this time, the transition roller 323 changes the direction of the conveyor belt 324, specifically by pulling the conveyor belt 324 downward, so that when the conveyor rollers 321 rise to the hollow area 111, the conveyor belt 324 can avoid the position and avoid interference with the structure (such as the support part 120) with the adsorption surface 121 in the dicing suction cup 100.

[0073] It is worth emphasizing that in this embodiment, the function of the conveyor belt 324 is to achieve synchronous rotation of each conveyor roller 321, and it does not contact the solar cells itself. The function of the transition rollers 323 disposed between the conveyor rollers 321 is to change the path of the conveyor belt 324 and avoid interference between the conveyor belt 324 and the adsorption structure of the dicing suction cup 100. Understandably, some of the remaining transition rollers 323 can be used as tension rollers to tension the conveyor belt 324.

[0074] In some embodiments, refer to Figure 3 The lifting assembly 310 includes a base plate 311 and a lifting drive 312. The lifting drive 312 is connected to the base plate 311 and is used to drive the base plate 311 to lift. Two carrier plates 322 are disposed on the base plate 311. At least one carrier plate 322 is movably disposed parallel to the axial direction X of the conveying roller 321 to change the distance between the two carrier plates 322.

[0075] Specifically, the lifting drive component 312 can be a pneumatic cylinder or a hydraulic cylinder. To achieve a variable relative distance between the two carrier plates 322 along the axial direction X of the conveyor roller 321, in one embodiment, one carrier plate 322 is fixedly disposed on the base plate 311, while the other carrier plate 322 is movably disposed on the base plate 311. In another embodiment, both carrier plates 322 are movably disposed on the base plate 311.

[0076] In practical applications, the dicing suction cup 100 can be used for solar cells of different sizes. The distance between the two carrier plates 322 is adjusted according to the size of the solar cell along the axial X direction of the conveyor roller 321, so that the conveyor roller 321 on the two carrier plates 322 can effectively support the solar cell, have a larger contact area with the solar cell, and improve the smoothness of the solar cell conveying.

[0077] In some embodiments, refer to Figure 4 The feeding mechanism 300 includes a first motor 331 and a first lead screw 332. The first motor 331 is arranged between two carrier plates 322, and each carrier plate 322 is connected to the first lead screw 332 via a lead screw pair. Thus, when the first motor 331 drives the first lead screw 332 to rotate, the first lead screw 332 drives the carrier plate 322 to move along the axial direction X of the conveyor roller 321 through the lead screw pair. At this time, the two carrier plates 322 can move relative to each other or in opposite directions using the same motor, which is simple in structure and low in cost.

[0078] In one embodiment, combined with Figure 3 and Figure 4 It is understood that the lifting drive component 312 includes a second motor 312a, a second lead screw 312b, and a lead screw pair. The lead screw pair is disposed on the base plate 311. The second lead screw 312b is connected to the second motor 312a. When the second motor 312a drives the second lead screw 312b to rotate, the base plate 311 is driven to move up and down with the cooperation of the lead screw pair.

[0079] In some embodiments, combined with Figure 3 and Figure 4 The substrate 311 is provided with a slide rail 311a positioned along the axial direction X of the parallel conveyor roller 321, and the carrier plate 322 is provided with a slider 322a, which is slidably mounted on the slide rail 311a. In this configuration, the cooperation between the slide rail 311a and the slider 322a improves the linearity and stability of the carrier plate 322's movement along the axial direction X of the conveyor roller 321.

[0080] In some embodiments, reference is made to Figures 1 to 3 The battery dicing device 1000 includes a detection mechanism 500 and a loading mechanism 600. The dicing suction cup 100 has a loading station W3, which is located upstream of the dicing station W2. The dicing suction cup 100 at the loading station W3 is located between the detection mechanism 500 and the loading mechanism 600. The loading mechanism 600 is used to transport battery cells to the dicing suction cup 100 at the loading station W3. The detection mechanism 500 includes a detection camera 510 for detecting the battery cells.

[0081] The feeding mechanism 600 is used to feed the battery cells onto the dicing suction cup 100. In one embodiment, the feeding mechanism 600 includes a feeding suction cup 610. After the inspection mechanism 500 acquires the image visual information of the battery cells through its inspection camera 510, it analyzes the data acquired by the inspection camera 510 based on image processing technology to determine the quality problems of the battery cells. The inspection items can be dimensions, appearance quality, internal quality, etc.

[0082] In one embodiment, reference is made to... Figure 2 The inspection mechanism 500 is located below the feeding mechanism 600, and the dicing suction cup 100 at the feeding station W3 is located between the inspection mechanism 500 and the feeding mechanism 600, making the layout more reasonable.

[0083] In practical applications, when the dicing suction cup 100 rotates to the loading station W3, the loading mechanism 600 transports the solar cells to the dicing suction cup 100, and the inspection camera 510 of the inspection mechanism 500 performs quality checks on the solar cells at the dicing suction cup 100. If the quality is satisfactory, the dicing suction cup 100 rotates to the dicing station W2, where the laser dicing mechanism 200 performs dicing processing on the solar cells. This reduces the defect rate of the sub-solar cells after dicing.

[0084] In some embodiments, refer to Figure 2 The inspection camera 510 includes a CCD camera 511 and a PL camera 512. CCD is an abbreviation for Charge Coupled Device, and PL is an abbreviation for Photoluminescence.

[0085] In practical applications, a CCD camera 511 is used to photograph the surface and edges of the solar cells to identify defects such as microcracks, chipped edges, and missing corners on the outer edges. A PL camera 512 is used to excite the solar cells to generate diffusion and recombination. During recombination, infrared light of a specific wavelength is emitted. A high-sensitivity camera captures the image of this emitted light to identify internal structural defects such as scratches, microcracks, broken grids, scratches on the suction cup, and bright / dark spots. This allows for the early screening and rejection of defective solar cells, reducing resource waste.

[0086] Both the CCD camera 511 and the PL camera 512 are conventional components in this field and are not specifically limited.

[0087] In practical applications, if either the CCD camera 511 or the PL camera 512 detects a quality failure, it indicates that the battery cell is of substandard quality and needs to be rejected.

[0088] In some embodiments, refer to Figure 2 The testing organization 500 also includes a protective cover 520 that covers the testing camera 510 to prevent dust from falling on the testing camera 510 and affecting the testing accuracy.

[0089] In some embodiments, refer to Figure 1 and Figure 2 The battery dicing device 1000 also includes a kicking mechanism 700. A kicking station W4 is provided on the rotation path of the dicing suction cup 100. The kicking mechanism 700 is arranged corresponding to the kicking station W4, which is located between the dicing station W2 and the feeding station W3.

[0090] The chip-removing mechanism 700 is used to reject solar cells that fail quality inspection. Specifically, the chip-removing mechanism 700 may include a chip-removing suction cup 710. The chip-removing station W4 is located between the dicing station W2 and the loading station W3. When the dicing suction cup 100 detects that the solar cells on the loading station W3 have passed quality inspection, it rotates a first angle to the dicing station W2, where the laser dicing mechanism 200 performs laser dicing on the solar cells. If the solar cells fail quality inspection, it rotates a second angle to the chip-removing station W4, where the chip-removing mechanism 700 removes the solar cells. The first angle is greater than the second angle.

[0091] Thus, the battery shaving device 1000 has the function of recycling waste cells.

[0092] In one specific embodiment, the battery dicing device 1000 includes a rotating bracket 400, multiple suction cups, a feeding mechanism 600, a detection mechanism 500, a dicing mechanism 700, two sets of laser dicing mechanisms 200, and a discharging mechanism 300. The multiple suction cups are arranged at Z-intervals along the axial direction of the rotating bracket 400. A feeding station W3, a dicing station W4, a first dicing station W2, a second dicing station W2, and a discharging station W1 are sequentially arranged along the rotation path of the suction cups. The feeding mechanism 600 and the detection mechanism 500 are arranged corresponding to the feeding station W3, the dicing mechanism 700 is arranged corresponding to the dicing station W4, the two sets of laser dicing mechanisms 200 are arranged corresponding to the first dicing station W2 and the second dicing station W2, respectively, and the discharging mechanism 300 is arranged corresponding to the discharging station W1. The laser dicing mechanism 200 corresponding to the first dicing station W2 has a single cutting head, and the laser dicing mechanism 200 corresponding to the second dicing station W2 has a double cutting head.

[0093] The battery dicing device 1000 operates roughly as follows: Using one of the suction cups as the target suction cup, when the target suction cup rotates to the loading station W3, it receives battery cells transported by the loading mechanism 600. The inspection mechanism 500 performs quality inspection on the battery cells on the target suction cup. If the quality is substandard, the target suction cup rotates directly to the kicking station W4, where the kicking mechanism 700 removes the defective battery cells. If the quality is satisfactory, and the battery cell needs to be diced in half, the target suction cup rotates to the first dicing station W2 for dicing. If the battery cell needs to be diced in quarters or thirds, the target suction cup rotates to the second dicing station W2 for dicing. After dicing, the target suction cup rotates to the unloading station W1. The lifting component 310 of the unloading mechanism 300 drives the conveyor roller 321 to rise and pass through the cutout area 111, lifting the sub-battery cells on the target suction cup. The conveyor roller 321 rotates and conveys each sub-battery cell away from the target suction cup.

[0094] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0095] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A battery sizing device (1000), characterized in that, include: Slicing suction cup (100); A rotating bracket (400) is rotatably arranged around the vertical direction. A plurality of dicing suction cups (100) are arranged at intervals around the axial direction (Z) of the rotating bracket (400). At least two dicing stations (W2) are arranged on the rotation path of the dicing suction cups (100). A laser scribing mechanism (200) is configured for each scribing station (W2), and the number of cutters in each set of laser scribing mechanisms (200) is different.

2. The battery dicing device (1000) according to claim 1, characterized in that, The laser scribing mechanism (200) includes a laser generator (210), a scanning lens (220) disposed on the laser generator (210), at least one laser scribing head (230), and a dicing cooling tube (240). Each laser scribing head (230) is equipped with a dicing cooling tube (240), which is used to spray cooling material onto the battery cells on the scribing suction cup (100).

3. The battery dicing device (1000) according to claim 1, characterized in that, The dicing suction cup (100) includes an adsorption surface (121) and a hollow area (111) that runs vertically through it. A feeding station (W1) is provided on the rotation path of the dicing suction cup (100). The battery dicing device (1000) also includes a feeding mechanism (300), which is arranged below the dicing suction cup (100) located at the feeding station (W1); The feeding mechanism (300) includes a lifting assembly (310) and a conveying assembly (320). The conveying assembly (320) includes a plurality of conveying rollers (321) arranged in parallel. The conveying rollers (321) are arranged vertically and vertically corresponding to the hollow area (111). The lifting assembly (310) is connected to the conveying assembly (320) and can drive the conveying assembly (320) to rise and fall, so as to drive all the conveying rollers (321) to pass through the hollow area (111) and support the battery cells adsorbed on the adsorption surface (121). All the conveying rollers (321) are configured to rotate in the same direction to drive the supported battery cells away from the dicing suction cup (100).

4. The battery dicing device (1000) according to claim 3, characterized in that, The slicing suction cup (100) includes a frame (110) and a support (120). The frame (110) encloses and forms the hollow area (111). The support (120) is connected to the frame (110), and its vertical projection intersects with the hollow area (111). At least a portion of the support portion (120) has the adsorption surface (121); The support portion (120) is located within the hollow area (111), and the upper surface of each support portion (120) is flush with the upper surface of the frame (110).

5. The battery dicing device (1000) according to claim 4, characterized in that, A plurality of conveying rollers (321) are arranged sequentially along a first direction (Y) perpendicular to the axial direction (X) of the conveying rollers (321); a plurality of support portions (120) are spaced apart along the first direction (Y) within the hollowed-out area (111), with each hollowed-out area (111) portion corresponding to a conveying roller (321) located between two adjacent support portions (120) along the first direction (Y) and between the support portion (120) and the frame (110); and / or, The frame (110) is provided with reinforcing ribs (112); and / or, The adsorption surface (121) is provided with a buffer pad.

6. The battery dicing device (1000) according to claim 3, characterized in that, The conveying assembly (320) includes two carrier plates (322) spaced apart along the axial (X) direction of the conveying roller (321), and each carrier plate (322) is provided with a plurality of the conveying rollers (321) spaced apart along a first direction (Y) perpendicular to the axial (X) direction of the conveying roller (321). The conveying assembly (320) further includes a transition roller (323), a conveyor belt (324), and a rotating power component (325), wherein the conveyor belt (324) connects all the transition rollers (323) and the conveyor roller (321), and the rotating power component (325) is connected to one of the transition rollers (323); In each of the carrier plates (322), a portion of the transition rollers (323) are arranged along the first direction (Y) between two adjacent conveyor rollers (321) and are positioned below the conveyor rollers (321).

7. The battery dicing device (1000) according to claim 6, characterized in that, The lifting assembly (310) includes a base plate (311) and a lifting drive (312), wherein the lifting drive (312) is connected to the base plate (311) and is used to drive the base plate (311) to lift. Two carrier plates (322) are disposed on the substrate (311), and at least one of the carrier plates (322) is movably disposed parallel to the axial direction (X) of the conveyor roller (321) to change the distance between the two carrier plates (322).

8. The battery dicing device (1000) according to claim 7, characterized in that, The feeding mechanism (300) includes a first motor (331) and a first lead screw (332), the first motor (331) being arranged between two carrier plates (322), each carrier plate (322) being connected to the first lead screw (332) via a lead screw pair; and / or, The substrate (311) is provided with a slide rail (311a) arranged parallel to the axial direction (X) of the conveying roller (321), and the carrier plate (322) is provided with a slider (322a), which is slidably disposed on the slide rail (311a).

9. The battery dicing device (1000) according to claim 1, characterized in that, The battery dicing device (1000) includes a detection mechanism (500) and a feeding mechanism (600); The dicing suction cup (100) has a loading station (W3) located upstream of the dicing station (W2). The loading mechanism (600) is used to transport the battery cells to the dicing suction cup (100) at the loading station (W3). The detection mechanism (500) includes a detection camera (510) for detecting the battery cells. The detection camera (510) includes a CCD camera (511) and a PL camera (512); and / or, the detection mechanism (500) further includes a protective cover (520) covering the detection camera (510).

10. The battery dicing device (1000) according to claim 9, characterized in that, The battery dicing device (1000) further includes a kicking mechanism (700). A kicking station (W4) is provided on the rotation path of the dicing suction cup (100). The kicking mechanism (700) is arranged corresponding to the kicking station (W4), which is located between the dicing station (W2) and the loading station (W3).

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