Adsorption assembly, adsorption device and solar cell manufacturing production line

Abstract

The utility model relates to an adsorption assembly, an adsorption device and a solar cell manufacturing production line. The adsorption assembly comprises a support, the support comprises a first support body and a protrusion, the width of the first support body is L, the L is larger than or equal to 3 mm and smaller than or equal to 5 mm, the protrusion protrudes out of the side, arranged in the thickness direction of the first support body, of the first support body, and the orthographic projection of the protrusion in the thickness direction of the first support body completely falls into the surface, facing the protrusion, of the first support body; the suction nozzle is sleeved and fixed outside the bulge; the first frame body, the protrusion and the suction nozzle are communicated in sequence. According to the adsorption assembly, the adsorption device and the solar cell manufacturing production line provided by the invention, the abnormal condition during the electrical performance test of the cell can be reduced.

Description

Technical Field

[0001] This application relates to the field of solar cell manufacturing technology, specifically to an adsorption component, an adsorption device, and a solar cell manufacturing production line. Background Technology

[0002] After the solar cells are manufactured, their electrical performance needs to be tested at the testing station using the upper and lower probe sets of an electrical performance testing device to determine if they meet the required standards. During this testing process, the suction nozzle of the adsorption device picks up the solar cell and moves it to a positioning station for photographing. Based on the image, the cell's location is determined. The adsorption device then corrects the cell's position and adjusts its placement at the testing station. After the cell is placed at the testing station, the upper and lower probe sets are positioned above and below the cell, respectively. The upper probe set moves downwards, and the lower probe set moves upwards, ensuring electrical connection between the upper and lower probe sets and the cell for electrical performance testing.

[0003] However, in the existing technology, when the lower probe group moves upward, it is easy to block the frame in the adsorption device where the suction nozzle is installed, which may cause abnormalities such as frame deformation or battery cell crushing due to pressure. Utility Model Content

[0004] Therefore, it is necessary to provide an adsorption component, adsorption device, and solar cell manufacturing production line that can reduce abnormal situations during the electrical performance testing of solar cells, in order to address the above problems.

[0005] An adsorption assembly, the adsorption assembly comprising:

[0006] A support frame includes a first frame and a protrusion. The width of the first frame is L, where 3mm ≤ L ≤ 5mm. The protrusion protrudes from one side of the first frame along its thickness direction, and the orthographic projection of the protrusion onto the thickness direction of the first frame completely falls on the surface of the first frame facing the protrusion.

[0007] The suction nozzle is fitted and fixed to the outside of the protrusion;

[0008] The first frame, the protrusion, and the suction nozzle are connected in sequence.

[0009] In some embodiments, the suction nozzle has a through suction hole, the suction hole including a first sub-hole and a second sub-hole that are interconnected, the diameter of the second sub-hole being larger than the diameter of the first sub-hole;

[0010] The protrusion comprises a first sub-portion and a second sub-portion, the first sub-portion is connected and communicated between the first frame body and the second sub-portion, the diameter of the second sub-portion is greater than that of the first sub-portion, the first sub-portion is arranged in and clamped in the first sub-hole, and the second sub-portion is arranged in the second sub-hole and overlaps with the bottom edge of the second sub-hole.

[0011] In some embodiments, the protrusions are arranged in sequence along the length direction of the first frame body, and the suction nozzles correspond to the protrusions one by one, and the suction nozzles are sleeved outside the corresponding protrusions.

[0012] In some embodiments, the suction nozzles are silica gel suction nozzles.

[0013] In some embodiments, the bracket further comprises a second frame body and a fastener, the second frame body is provided with a clamping hole and a fastening hole, the first frame body is away from the suction nozzle and clamped in the clamping hole, and the fastening hole and the fastener are used for fastening and mounting on an index disc.

[0014] In some embodiments, the fastening hole is two, and the two fastening holes are distributed on the opposite sides of the clamping hole.

[0015] In some embodiments, the fastening hole is a threaded hole, and the fastener is a threaded fastener.

[0016] In some embodiments, the adsorption assembly further comprises a sealing ring, and the sealing ring is sealingly connected between the first frame body and the hole side edge of the clamping hole.

[0017] An adsorption device comprises:

[0018] A vacuum generator;

[0019] An index disc in communication with the vacuum generator; and

[0020] A plurality of adsorption assemblies as described in any one of the above embodiments, all the adsorption assemblies are arranged in sequence along the width direction of the first frame body, the bracket is mounted on the index disc, and the first frame body is in communication with the index disc.

[0021] A solar cell manufacturing production line having a positioning station and a testing station, and the solar cell manufacturing production line comprises:

[0022] The adsorption device as described in any one of the above embodiments, the suction nozzle is used for adsorbing a cell piece;

[0023] A transfer device in transmission connection with the index disc and used for driving the index disc to drive the suction nozzle and the cell piece to transfer between the positioning station and the testing station;

[0024] a camera for taking a photo of the battery piece located at the positioning station, the transfer device adjusting the position of the battery piece placed at the testing station according to the image taken by the camera;

[0025] an electrical performance testing device, comprising a first probe set and a second probe set, the first probe set and the second probe set corresponding to the support in one-to-one manner, the first probe set and the second probe set being arranged in the thickness direction of the first frame body and on the same side of the corresponding first frame body in the width direction of the first frame body, the first probe set and the second probe set being matched and used for performing electrical performance testing on the battery piece;

[0026] a control device, electrically connected with the vacuum generator, the transfer device, the camera and the electrical performance testing device.

[0027] Compared with the prior art, the present application has the following beneficial effects:

[0028] The above-mentioned adsorption assembly, adsorption device and solar cell manufacturing production line, by designing the width of the first frame body as L, 3mm≤L≤5mm, and the orthographic projection of the protrusion in the thickness direction of the first frame body completely falls into the surface of the first frame body on which the protrusion is arranged, compared with the support of the prior art, the width of the first frame body and the size of the protrusion in the width direction of the first frame body are both reduced, so that the risk of the second probe set colliding with the first frame body or the protrusion during the upward movement of the second probe set is reduced, and the probability of abnormal conditions such as deformation of the first frame body or crushing of the battery piece due to pressure is also reduced, thereby improving the reliability of battery piece production. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 FIG. 6 is a structure diagram of the indexing disc of the solar cell manufacturing production line of an embodiment of the present application cooperating with the adsorption assembly and the second probe set;

[0030] Figure 2 FIG. 7 is a structure diagram of the overall structure of the adsorption assembly of an embodiment of the present application;

[0031] Figure 3 FIG. 8 is a structure diagram of the adsorption assembly shown in FIG. 7 without fasteners and suction nozzles; Figure 2 FIG. 9 is a structure diagram of the adsorption assembly shown in FIG. 8 without fasteners;

[0032] Figure 4 FIG. 10 is a structure diagram of the suction nozzle in the adsorption assembly shown in FIG. 8; Figure 2 FIG. 11 is a structure diagram of the suction nozzle shown in FIG. 10;

[0033] Figure 5 FIG. 12 is a right view of the adsorption assembly shown in FIG. 8 without fasteners; Figure 2 FIG. 13 is a right view of the adsorption assembly shown in FIG. 9;

[0034] Figure 6For Figure 5 A structural schematic view of a second frame body of the adsorption assembly shown.

[0035] Reference signs:

[0036] 1000, a solar cell manufacturing production line;

[0037] 100, an adsorption device; 200, a second probe group;

[0038] 10, an adsorption assembly; 20, a protractor;

[0039] 11, a bracket; 12, a suction nozzle; 13, a fastener; 14, a sealing ring;

[0040] 111, a first frame body; 1111, a second air hole; 112, a protrusion; 1121, a first sub-portion; 1122, a second sub-portion; 1123, a gas passing channel; 113, a second frame body; 1131, a clamping hole; 1132, a fastening hole;

[0041] 121, an adsorption hole; 1211, a first sub-hole; 1212, a second sub-hole;

[0042] 210, a probe; 220, a base;

[0043] X, a length direction; Y, a width direction; Z, a thickness direction. DETAILED DESCRIPTION

[0044] In order to make the above objectives, features and advantages of the present application more apparent, specific embodiments of the present application are described in detail below with reference to the accompanying drawings. In the following description, a large number of specific details are set forth in order to provide a sufficient understanding of the present application. However, the present application can be implemented in many different ways other than those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application, and therefore the present application is not limited to the specific embodiments disclosed below.

[0045] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0046] In addition, the terms "first", "second", etc. are used only for descriptive purposes and do not connote or imply relative importance of the indicated elements or numbering thereof. Thus, a feature defined with "first" or "second" can include at least one of the features, explicitly or implicitly. In the description of the present application, the meaning of "a plurality" is at least two, for example, two, three, etc., unless otherwise explicitly specified and limited.

[0047] In the present application, unless specifically defined and limited otherwise, the terms "mounting", "connecting", "connecting", "fixing" and the like should be interpreted broadly, for example, can be fixed connection, can also be detachable connection, or integrated; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0048] In the present application, unless specifically defined and limited otherwise, the first feature is "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0049] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there can be a middle element. When an element is referred to as "connected" to another element, it can be directly connected to the other element or there can be a middle element. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are for illustrative purposes only and are not the only embodiment.

[0050] After the cell piece of the solar cell is manufactured, the upper probe group and the lower probe group of the electrical performance testing device are used to detect the electrical performance of the cell piece in a testing station to determine whether the electrical performance of the cell piece is qualified. In this detection process, the suction nozzle of the suction device adsorbs the cell piece and drives the cell piece to be first transferred to a positioning station to take a picture. According to the image obtained by the picture taking, the position of the cell piece can be determined. Then, the suction device corrects the position of the cell piece according to the position of the cell piece and adjusts the position of the cell piece placed in the testing station. After the cell piece is placed in the testing station, the upper probe group and the lower probe group are respectively located above and below the cell piece, and the upper probe group moves downward and the lower probe group moves upward, so that the upper probe group and the lower probe group can be electrically connected with the cell piece to test the electrical performance of the cell piece.

[0051] However, in the prior art, when the lower probe group moves upward, the frame body in which the suction nozzle is installed in the suction device is easily pressed, which causes abnormal conditions such as deformation of the frame body or crushing of the cell piece under pressure.

[0052] Please refer to Figures 1 to 5In order to alleviate the above problems, the application provides an adsorption assembly 10, an adsorption device 100 and a solar cell manufacturing production line 1000. The solar cell manufacturing production line 1000 has a positioning station and a test station, and the solar cell manufacturing production line 1000 comprises the adsorption device 100, a transfer device, a camera, an electrical performance testing device and a control device. The adsorption device 100 comprises a vacuum generator, an indexing disc 20 and a plurality of adsorption assemblies 10. The adsorption assembly 10 comprises a support 11 and a suction nozzle 12. The support 11 comprises a first frame body 111 and a protrusion 112. The width of the first frame body 111 is L, and 3mm≤L≤5mm. The protrusion 112 protrudes from one side of the first frame body 111 along the thickness direction Z of the first frame body 111, and the orthogonal projection of the protrusion 112 on the thickness direction Z of the first frame body 111 completely falls on the surface of the first frame body 111 facing the protrusion 112. The suction nozzle 12 is sleeved and fixed outside the protrusion 112 and is used for adsorbing the cell sheet, wherein the first frame body 111, the protrusion 112 and the suction nozzle 12 are sequentially communicated. All the adsorption assemblies 10 are sequentially arranged along the width direction Y of the first frame body 111. The support 11 is installed on the indexing disc 20, and the first frame body 111 is in communication with the indexing disc 20. The indexing disc 20 is in communication with the vacuum generator. The transfer device is in transmission connection with the indexing disc 20 and is used to drive the indexing disc 20 to drive the suction nozzle 12 and the cell sheet to transfer between the positioning station and the test station. The camera is used to take a photo of the cell sheet located at the positioning station. The transfer device adjusts the position of the cell sheet placed at the test station according to the image obtained by the camera. The electrical performance testing device comprises a first probe group and a second probe group 200. The first probe group and the second probe group 200 correspond to the support 11 one by one. The first probe group and the second probe group 200 are arranged at intervals along the thickness direction Z of the first frame body 111 and are arranged on the same side of the corresponding first frame body 111 along the width direction Y of the first frame body 111. The first probe group and the second probe group 200 cooperate and are used to test the electrical performance of the cell sheet. The control device is in electrical connection with the vacuum generator, the transfer device, the camera and the electrical performance testing device.

[0053] Specifically, the first frame body 111 has a vacuum cavity, a first air hole and a second air hole 1111. The protrusion 112 has an air passage 1123. The suction nozzle 12 has a suction hole 121. The suction hole 121, the air passage 1123, the first air hole, the vacuum cavity and the second air hole 1111 are sequentially communicated. The support 11 is installed on the indexing disc 20, and the first frame body 111 is in communication with the indexing disc 20. Specifically, the second air hole 1111 of the first frame body 111 is in communication with the indexing disc 20, and the indexing disc 20 is in communication with the vacuum generator. The vacuum generator can form a suction effect, and under the distribution of the indexing disc 20, a vacuum can be formed at the second air hole 1111, the vacuum cavity, the first air hole, the air passage 1123 and the suction hole 121 of each group of adsorption assemblies 10, so as to achieve the purpose of adsorbing the cell sheet by the suction nozzle 12.

[0054] Specifically, the index plate 20 and the vacuum generator are both conventional techniques in the art, and thus will not be described here.

[0055] All the adsorption assemblies 10 on the same index plate 20 are arranged along the width direction Y of the first frame body 111 in sequence, so that the suction nozzles 12 of all the adsorption assemblies 10 on the same index plate 20 can cooperate to adsorb the same battery piece, which is conducive to improving the reliability of the battery piece adsorption.

[0056] Specifically, the transfer device can be a three-axis robot, a four-axis robot, a motor, or other devices capable of driving the adsorption device 100 to move.

[0057] The first probe group is one of the upper probe group and the lower probe group, and the second probe group 200 is the other one of the upper probe group and the lower probe group. For the convenience of description, the following embodiments are described by taking the first probe group as the upper probe group and the second probe group 200 as the lower probe group. The upper probe group refers to the group of probes 210 located above the battery piece during the electrical performance test, and the lower probe group refers to the group of probes 210 located below the battery piece during the electrical performance test.

[0058] The first probe group and the second probe group 200 each correspond to a support 11, and the first probe group and the second probe group 200 are arranged on one side of the corresponding first frame body 111 along the width direction Y of the first frame body 111. The first probe group and the second probe group 200 are electrically connected to the battery piece located in the test station to test the electrical performance of the battery piece.

[0059] The first probe group and the second probe group 200 are identical in structure and each include a base 220 and a plurality of probes 210. The probes 210 are mounted on the base 220 and electrically connected to the battery piece.

[0060] In this application, the transfer device, the camera, the electrical performance testing device, and the control device are all conventional technical means in the art, and thus will not be described here.

[0061] In actual operation, the suction nozzle 12 adsorbs the battery piece, the control device controls the transfer device to drive the indexing disc 20 to drive the suction nozzle 12 and the battery piece to move to the positioning station, the camera takes a picture of the battery piece and feeds back to the control device. The control device determines the position of the battery piece according to the image taken by the camera, and then controls the transfer device to drive the indexing disc 20 to drive the suction nozzle 12 and the battery piece to the test station, and corrects the position of the battery piece at the test station according to the position of the battery piece determined by the image. Then, the control device controls the first probe group to move downward, and controls the second probe group 200 to move upward, so that the probes 210 of the first probe group and the second probe group 200 can contact and electrically connect with the battery piece. It is worth mentioning that after the battery piece is transferred to the test station, the suction nozzle 12 and the support 11 are located below the battery piece.

[0062] In the prior art, there is a certain error in position correction by camera. After adjusting the position of the battery piece at the test station according to the image taken by the camera, since the first support body 111 is wide (the width is usually in the range of 7mm to 9mm), the probes 210 of the second probe group 200 are easy to push against the first support body 111 in the process of upward movement of the second probe group 200, and then the first support body 111 is deformed, or the protrusion 112 moves upward relative to the suction nozzle 12 under the action of the first support body 111 and extends out of the suction nozzle 12 to resist the battery piece, causing the battery piece to be crushed and other abnormal conditions.

[0063] In the present application, the width of the first support body 111 is L, 3mm≤L≤5mm, and the orthogonal projection of the protrusion 112 in the thickness direction Z of the first support body 111 completely falls on the surface of the first support body 111 where the protrusion 112 is arranged. Compared with the support 11 of the prior art, the width of the first support body 111 and the size of the protrusion 112 in the width direction Y of the first support body 111 are both reduced. In this way, the risk of abutting against the first support body 111 or the protrusion 112 is reduced in the process of upward movement of the second probe group 200, so the probability of abnormal conditions such as deformation of the first support body 111 or crushing of the battery piece is also reduced, and the reliability of battery piece production is improved.

[0064] Please refer to Figure 3 and Figure 4In some embodiments, the suction nozzle 12 has a through suction hole 121, which includes a first sub-hole 1211 and a second sub-hole 1212 that are in communication with each other, and the diameter of the second sub-hole 1212 is greater than that of the first sub-hole 1211; the protrusion 112 includes a first sub-portion 1121 and a second sub-portion 1122, the first sub-portion 1121 is connected and communicated between the first frame body 111 and the second sub-portion 1122, the diameter of the second sub-portion 1122 is greater than that of the first sub-portion 1121, the first sub-portion 1121 is arranged in and clamped in the first sub-hole 1211, and the second sub-portion 1122 is arranged in the second sub-hole 1212 and overlaps with the bottom edge of the second sub-hole 1212 (as indicated by arrow A in FIG. 13). Figure 4

[0065] For example, the first sub-hole 1211 and the second sub-hole 1212 are both circular holes, and the first sub-portion 1121 and the second sub-portion 1122 are both cylindrical, the diameter of the first sub-hole 1211 is adapted to that of the first sub-portion 1121, so that the suction nozzle 12 can be fixed outside the protrusion 112. The second sub-portion 1122 is arranged in the second sub-hole 1212 and overlaps with the bottom edge of the second sub-hole 1212, thereby reducing the risk of the suction nozzle 12 being separated from the protrusion 112 and improving the reliability of the installation of the suction nozzle 12 and the protrusion 112.

[0066] It is worth mentioning that, in order to ensure that the suction nozzle 12 can adsorb the battery piece, generally, the second sub-portion 1122 should be retracted in the second sub-hole 1212, that is, the end face of the second sub-portion 1122 away from the first sub-portion 1121 is arranged in a spaced manner with the opening of the second sub-hole 1212 away from the first sub-hole 1211.

[0067] In some embodiments, the suction nozzle 12 is a silica gel suction nozzle. The silica gel suction nozzle has good elasticity, which deforms and expands under external force, can increase the diameters of the first sub-hole 1211 and the second sub-hole 1212, and facilitate the installation of the suction nozzle 12. After the external force is released, the silica gel suction nozzle restores to the state before expansion under the action of its own elastic force, so that the first sub-portion 1121 can be clamped in the first sub-hole 1211. Moreover, the silica gel suction nozzle can also reduce the impact between the suction nozzle and the battery piece, thereby reducing the risk of the battery piece being broken during the adsorption process.

[0068] In some embodiments, the protrusions 112 are a plurality of and arranged in sequence along the length direction X of the first frame body 111, and the suction nozzles 12 correspond to the protrusions 112 one by one, and the suction nozzles 12 are arranged outside the corresponding protrusions 112.

[0069] In actual operation, all the suction nozzles 12 on the first frame body 111 cooperate to adsorb the same battery piece, in which case, the adsorption effect of the battery piece is better, thereby reducing the risk of the battery piece falling.

[0070] Please refer to Figures 1 to 3 , and​Figure 5 and Figure 6 In some embodiments, the bracket 11 further includes a second frame 113 and a fastener 13. The second frame 113 has a locking hole 1131 and a fastening hole 1132. The first frame 111 is inserted away from the suction nozzle 12 and locked in the locking hole 1131. The fastening hole 1132 and the fastener 13 are used to fasten the bracket to the indexing plate 20.

[0071] In this embodiment, the end of the first frame 111 away from the suction nozzle 12 is inserted into and held in the locking hole 1131, which can realize the connection between the first frame 111 and the second frame 113. The indexing plate 20 is provided with an assembly hole. By the fastener 13 cooperating with the fastening hole 1132 and the assembly hole, the second frame 113 can be connected to the indexing plate 20, thereby realizing the installation of the adsorption component 10.

[0072] In some embodiments, there are two fastening holes 1132, which are distributed on opposite sides of the locking hole 1131. This design helps to improve the reliability and stability of the installation of the adsorption assembly 10.

[0073] In some embodiments, the fastening hole 1132 is a threaded hole, and the fastener 13 is a threaded component. In this embodiment, the assembly hole is also a threaded hole. By setting the fastener 13 to be a threaded component, and the fastening hole 1132 and the assembly hole to be threaded holes, the connection between the fastener 13 and the fastening hole 1132 and the assembly hole is convenient and helps to improve assembly efficiency.

[0074] In some embodiments, the adsorption assembly 10 further includes a sealing ring 14, which is sealed to the side edge of the hole of the first frame 111 and the card hole 1131 (e.g., Figure 6 (Indicated by arrow B). The sealing ring 14 ensures a tight seal between the first frame 111 and the second frame 113. Therefore, external air cannot enter the vacuum chamber, the air passage 1123, and the adsorption hole 121 through the gap between the first frame 111 and the second frame 113. This ensures the vacuum level of the first frame 111, the protrusion 112, and the suction nozzle 12, resulting in better adsorption of the battery cells.

[0075] Compared with the support 11 of the prior art, the width of the first frame body 111 and the size of the protrusion 112 in the width direction Y of the first frame body 111 are both reduced, so that the risk of the second probe group 200 abutting against the first frame body 111 or the protrusion 112 is reduced during upward movement of the second probe group 200, and the probability of abnormal conditions such as deformation of the first frame body 111 or crushing of the battery piece due to pressure is also reduced, thereby improving the reliability of battery piece production.

[0076] The technical features of the above-described embodiments can be combined in any manner. To make the description concise, all possible combinations of the technical features in the above-described embodiments are not described, but as long as the combinations of the technical features do not contradict each other, they should be considered within the scope of the present disclosure.

[0077] The above-described embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the patent scope of the present application. It should be pointed out that, for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the patent protection scope of the present application should be subject to the appended claims.

Claims

1. An adsorption component, characterized in that, The adsorption component includes: A support (11) includes a first frame (111) and a protrusion (112). The width of the first frame (111) is L, 3mm ≤ L ≤ 5mm. The protrusion (112) protrudes from one side of the first frame (111) along its thickness direction (Z), and the orthographic projection of the protrusion (112) in the thickness direction (Z) of the first frame (111) completely falls on the surface of the first frame (111) facing the protrusion (112). The suction nozzle (12) is fitted and fixed to the outside of the protrusion (112); The first frame (111), the protrusion (112) and the suction nozzle (12) are connected in sequence.

2. The adsorption component according to claim 1, characterized in that, The suction nozzle (12) has a through suction hole (121), which includes a first sub-hole (1211) and a second sub-hole (1212) that are interconnected. The diameter of the second sub-hole (1212) is larger than the diameter of the first sub-hole (1211). The protrusion (112) includes a first sub-part (1121) and a second sub-part (1122). The first sub-part (1121) is connected and communicates between the first frame (111) and the second sub-part (1122). The diameter of the second sub-part (1122) is larger than the diameter of the first sub-part (1121). The first sub-part (1121) passes through and is held in the first sub-hole (1211). The second sub-part (1122) is located in the second sub-hole (1212) and overlaps with the bottom edge of the second sub-hole (1212).

3. The adsorption component according to claim 1, characterized in that, The protrusions (112) are multiple and arranged sequentially along the length direction (X) of the first frame (111). The suction nozzle (12) corresponds to each of the protrusions (112) and is sleeved on the corresponding protrusion (112).

4. The adsorption component according to claim 1, characterized in that, The suction nozzle (12) is a silicone suction nozzle.

5. The adsorption component according to any one of claims 1 to 4, characterized in that, The bracket (11) also includes a second frame (113) and a fastener (13). The second frame (113) has a locking hole (1131) and a fastening hole (1132). The first frame (111) is inserted away from the suction nozzle (12) and locked in the locking hole (1131). The fastening hole (1132) and the fastener (13) are used to fasten the bracket to the indexing plate (20).

6. The adsorption component according to claim 5, characterized in that, There are two fastening holes (1132), which are distributed on opposite sides of the locking hole (1131).

7. The adsorption component according to claim 5, characterized in that, The fastening hole (1132) is a threaded hole, and the fastener (13) is a threaded component.

8. The adsorption component according to claim 5, characterized in that, The adsorption assembly also includes a sealing ring (14), which is sealed between the first frame (111) and the side edge of the hole (1131).

9. An adsorption device, characterized in that, The adsorption device includes: Vacuum generator; Indexing plate (20), connected to the vacuum generator; and Multiple adsorption components as described in any one of claims 1 to 8, all of the adsorption components are arranged sequentially along the width direction (Y) of the first frame (111), the bracket (11) is mounted on the indexing plate (20), and the first frame (111) is connected to the indexing plate (20).

10. A solar cell manufacturing production line, characterized in that, The solar cell manufacturing production line has a positioning station and a testing station, and the solar cell manufacturing production line includes: As described in claim 9 above, the suction nozzle (12) is used to adsorb battery cells; The transfer device is connected to the indexing plate (20) and is used to drive the indexing plate (20) to transfer the suction nozzle (12) and the battery cell between the positioning station and the testing station. A camera is used to take pictures of the battery cell located at the positioning station, and the transfer device adjusts the position of the battery cell at the testing station based on the image obtained by the camera. The electrical performance testing device includes a first probe group and a second probe group (200). The first probe group and the second probe group (200) correspond one-to-one with the bracket (11). The first probe group and the second probe group (200) are spaced apart along the thickness direction (Z) of the first frame (111) and are arranged on the same side of the corresponding first frame (111) along the width direction (Y). The first probe group and the second probe group (200) cooperate to perform electrical performance testing on the battery cell. The control device is electrically connected to the vacuum generator, the transfer device, the camera, and the electrical performance testing device.

Images