Solar cell anti-sticking device
By using the powder spray part and the blower part in the anti-adhesive device of the solar cell, the sticking problem caused by the residue of conductive glue after electroplating is solved, and the yield and production efficiency of the cell are improved.
Patent Information
- Application Number
- CN202421881632.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-05
- Publication Date
- 2025-06-17
- Estimated Expiration
- 2034-08-05
AI Technical Summary
During the metallization process of solar cell cells, flexible conductors need to be attached before electroplating, resulting in residual conductive adhesive, causing sticking problems when the cell is stacked, affecting yield and subsequent component production.
A solar cell anti-adhesion device is designed, including a bracket, a conveyor, a powder spraying part and a blowing part. The powder spraying part sprays the anti-stick powder on the bonding point of the battery sheet, and the anti-stick powder adheres to the residual glue surface, causing the residual glue to lose its viscosity; the blowing part blows the anti-stick powder that has not adhered to the residual glue surface.
It effectively avoids the sticking problem of battery cell stacking, improves the yield of battery cells, simplifies the structure and makes it easy to use.
Smart Images
Figure CN222984836U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of solar cell manufacturing, in particular to an anti-sticking device for solar cell wafers. Background Art
[0002] Traditional screen printing of solar cell wafers uses silver paste, which is relatively expensive. In recent years, with the progress of technology, the total production cost of solar cells has been continuously decreasing, while the proportion of silver paste in the cost of cell wafers has been continuously increasing. Therefore, reducing the metallization cost of cell wafers has become one of the main ways to reduce the cost of cell wafers at present. The electroplating method is a method that can replace traditional screen printing to achieve the metallization of solar cells. This method can use cheaper metals such as nickel and copper to partially or completely replace silver to reduce the cost of cell wafers. Achieving mass production of the electroplating method as soon as possible has become the goal pursued by the industry.
[0003] Solar cell wafers are metallized through horizontal electroplating. Before electroplating, the solar cell wafers need to be pretreated, and flexible conductors are attached to the preset contact positions of the cell wafers. Copper foil is generally used as the flexible conductor. In order to meet the requirements of electroplating uniformity of the cell wafers, multiple copper foils are attached to both the front and back surfaces of the cell wafers. The copper foil and the cell wafer are bonded through a special conductive adhesive. After electroplating, the conductive adhesive often remains at the bonding points of the cell wafers. When the cell wafers are stacked, sticking of the wafers will occur, resulting in a decrease in the yield of the cell wafers, seriously affecting the packaging of the cell wafers and the production of subsequent components. Currently, the performance of the conductive adhesive is mainly optimized to avoid its residue at the bonding points of the cell wafers. However, the residue of the conductive adhesive is not only related to the performance of the conductive adhesive, but also affected by the bonding mechanism, pressure, electroplating solution, and transmission of the cell wafers. Simply optimizing the conductive adhesive is difficult to completely avoid its residue. Summary of the Utility Model
[0004] Based on this, the utility model provides an anti-sticking device for solar cell wafers, including: a bracket, a conveying part, a powder spraying part, and a blowing part respectively connected to the bracket; the conveying part is used to convey the cell wafers along a first direction, so that the cell wafers sequentially pass through the powder spraying part and the blowing part; the powder spraying part is used to spray anti-sticking powder on the bonding points of the cell wafers, and the anti-sticking powder can adhere to the surface of the residual glue at the bonding points, so that the residual glue loses its stickiness; the blowing part is used to blow off the anti-sticking powder that has not adhered to the surface of the residual glue.
[0005] Further, the cell wafer has a first surface and a second surface that are oppositely arranged, and the first surface of the cell wafer and / or the second surface of the cell wafer is configured as a surface to be treated with the bonding points;
[0006] The blowing part is arranged in one-to-one correspondence with the surface to be treated of the cell wafer.
[0007] Further, the solar cell has at least one of the bonding points;
[0008] The powder spraying part is arranged in one-to-one correspondence with the bonding points.
[0009] Further, a plurality of first vacuum holes are formed in the bracket at intervals along the first direction, and the plurality of first vacuum holes are respectively connected to a vacuum device;
[0010] A plurality of second vacuum holes are formed in the conveying part at intervals along the first direction, and the second vacuum holes can be communicated with the vacuum device through the first vacuum holes, so that the solar cell is adsorbed on the conveying part.
[0011] Further, the anti-sticking device for solar cells further includes a sensing part arranged on the bracket;
[0012] The sensing part, the conveying part and the powder spraying part are respectively electrically connected to a control device, and the sensing part is used for sensing whether the bonding point is aligned with the corresponding powder spraying part;
[0013] The control device is configured to, if the bonding point is aligned with the corresponding powder spraying part, control the conveying part to stop conveying the solar cell, and control the powder spraying part to spray powder.
[0014] Further, the anti-sticking device for solar cells further includes a driving part, and the driving part is used for driving the conveying part to convey the solar cell, and the driving part is fixed on the bracket.
[0015] Further, the conveying part includes a driving wheel, a driven wheel and a conveyor belt. The driving wheel is in transmission connection with the output end of the driving part, the driven wheel is rotatably connected to the bracket, and the conveyor belt is in transmission connection with the driving wheel and the driven wheel respectively.
[0016] Further, the anti-sticking device for solar cells includes two of the conveying parts, and the two conveying parts are respectively connected to the bracket;
[0017] The driving part is used for driving the two conveying parts to synchronously convey the same solar cell.
[0018] Further, the powder spraying part is detachably connected to the bracket, and the position of the powder spraying part on the bracket is adjustable.
[0019] Further, the blowing part is detachably connected to the bracket, and the position of the blowing part on the bracket is adjustable.
[0020] Compared with the prior art, the beneficial features of the present utility model are as follows: For this anti-sticking device for solar cell wafers, the anti-sticking powder is sprayed on the bonding points of the cell wafers through the powder spraying part. The anti-sticking powder will adhere to the surface of the residual glue at the bonding points with residual glue, causing the residual glue to lose its stickiness, thereby effectively avoiding the problem of cell wafers sticking together in stacking, improving the yield rate of cell wafers. The anti-sticking powder will not adhere to the bonding points without residual glue, and the anti-sticking powder that has not adhered to the surface of the residual glue can be blown off through the air blowing part, removing the excess anti-sticking powder. The structure is simple and easy to use. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 is a three-dimensional structural schematic diagram of the anti-sticking device for solar cell wafers of the present utility model;
[0022] Figure 2 is Figure 1 the three-dimensional structural schematic diagram of the anti-sticking device for solar cell wafers shown;
[0023] Figure 3 is Figure 1 the top-view structural schematic diagram of the anti-sticking device for solar cell wafers shown;
[0024] Figure 4 is Figure 1 the rear-view structural schematic diagram of the anti-sticking device for solar cell wafers shown;
[0025] Figure 5 is Figure 1 the right-view structural schematic diagram of the anti-sticking device for solar cell wafers shown;
[0026] Figure 6 is Figure 1 the left-view structural schematic diagram of the anti-sticking device for solar cell wafers shown;
[0027] Wherein: 1 - bracket, 2 - conveying part (2a - conveying part, 2b - conveying part, 201 - driving wheel (201a - driving wheel, 201b - driving wheel), 202 - transmission wheel (202a - transmission wheel, 202b - transmission wheel, 202c - transmission wheel, 202d - transmission wheel), 203 - conveyor belt (203a - conveyor belt, 203b - conveyor belt, 2031 - second vacuum hole)), 3 - powder spraying part (301 - nozzle), 4 - air blowing part, 5 - cell wafer (501 - bonding point, 502 - first surface, 503 - second surface), 6 - induction part, 7 - driving part, 8 - support shaft, 9 - support shaft, 10 - first connecting seat (1001 - first assembly hole). DETAILED DESCRIPTION OF THE EMBODIMENTS
[0028] To facilitate the understanding of the present utility model, the present utility model will be described more comprehensively below with reference to the relevant drawings. Preferred embodiments of the present utility model are shown in the drawings. However, the present utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the understanding of the disclosure of the present utility model more thorough and comprehensive.
[0029] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time.
[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present utility model belongs. The terms used in the specification of the present utility model herein are only for the purpose of describing specific embodiments and are not intended to limit the present utility model.
[0031] Please refer to Figures 1 to 6 , the anti-sticking device for solar cell wafers in the embodiment of the present utility model includes: a bracket 1, a conveying part 2, a powder spraying part 3, and a blowing part 4. The conveying part 2, the powder spraying part 3, and the blowing part 4 are respectively connected to the bracket 1. The conveying part 2 is used to convey the cell wafer 5 in a first direction so that the cell wafer 5 passes through the powder spraying part 3 and the blowing part 4 in sequence. The powder spraying part 3 is used to spray the anti-sticking powder on the bonding point 501 of the cell wafer 5. It can be understood that the anti-sticking powder can adhere to the residual glue surface of the bonding point 501, so that the residual glue loses its viscosity, and moreover, the anti-sticking powder will not adhere to the area without residual glue. The blowing part 4 is used to blow off the anti-sticking powder that has not adhered to the residual glue surface. Due to the adhesion of the residual glue, the blowing part 4 cannot blow off the anti-sticking powder adhered to the residual glue surface.
[0032] Exemplarily, the above-mentioned residual glue can be the conductive glue remaining at the bonding point 501.
[0033] In the embodiment of the present utility model, the anti - sticking device for solar cells uses a physical spraying method to solve the problem of patch sticking caused by residual glue at the bonding point 501 of the battery cell 5. Specifically, in the anti - sticking device for solar cells according to the embodiment of the present utility model, the anti - sticking powder is sprayed on the bonding point 501 of the battery cell 5 through the powder spraying part 3. Although there is still residual glue at the bonding point 501 of the battery cell 5, the anti - sticking powder will adhere to the surface of the residual glue at the bonding point 501 with residual glue, making the residual glue lose its stickiness, thus effectively solving the problem of the battery cell 5 sticking together, improving the yield of the battery cell 5, and avoiding the influence of sticking on the subsequent processes. The anti - sticking powder will not adhere to the bonding point 501 without residual glue, and the anti - sticking powder that has not adhered to the surface of the residual glue can be blown off through the air blowing part 4, removing the excess anti - sticking powder, without causing an adverse impact on the subsequent processes. It has a simple structure, is easy to use, is not affected by various factors such as the performance of the conductive glue, the bonding mechanism, pressure, electroplating solution, and the transmission of the battery cell, and has strong applicability.
[0034] Exemplarily, the anti - sticking powder can be silicon powder. It can be understood that the anti - sticking powder can also be other powders, as long as it can adhere to the surface of the residual glue at the bonding point 501, making the residual glue lose its stickiness, and the anti - sticking powder that has adhered to the surface of the residual glue can be blown off by the air blowing part 4.
[0035] In some preferred embodiments, the battery cell 5 has a first surface 502 and a second surface 503 arranged oppositely, and the first surface 502 of the battery cell 5 and / or the second surface 503 of the battery cell 5 are configured as the surface to be treated with the bonding point 501. The air blowing part 4 is arranged in one - to - one correspondence with the surface to be treated of the battery cell 5.
[0036] In some examples, the bonding point 501 is provided on both the first surface 502 and the second surface 503 of the battery cell 5, that is to say, the battery cell 5 has two surfaces to be treated, and both the first surface 502 and the second surface 503 of the battery cell 5 are surfaces to be treated. In some examples, the battery cell 5 has only one surface to be treated. For example, the bonding point 501 is provided only on the first surface 502 of the battery cell 5, or only on the second surface 503 of the battery cell 5.
[0037] The present application does not limit the specific number of surfaces to be treated, the specific position of the bonding point 501, and the specific number of the bonding point 501, which can be set as required.
[0038] It can be understood that, please refer to Figure 1 and Figure 2 , the battery cell 5 has at least one bonding point 501.
[0039] In some preferred embodiments, please refer to Figures 1 to 6, the powder spraying part 3 is arranged in one-to-one correspondence with the bonding point 501. The powder spraying part 3 can spray the anti-adhesive powder onto the corresponding bonding point 501, so as to achieve precise spraying, ensure that the anti-adhesive powder adheres to the surface of the residual glue, and further ensure the anti-adhesive effect.
[0040] In one example, both the first surface 502 and the second surface 503 of the battery cell 5 are surfaces to be processed. Two bonding points 501 are arranged on the first surface 502 of the battery cell 5, and two bonding points 501 are arranged on the second surface 503 of the battery cell 5. Correspondingly, please refer to Figure 1 and Figure 2 , the anti-adhesive device for solar cell wafers includes four powder spraying parts 3, and the four powder spraying parts 3 are arranged in one-to-one correspondence with the four bonding points 501.
[0041] In some preferred embodiments, a plurality of first vacuum holes (not shown in the figure) are formed on the bracket 1. The first vacuum holes can be arranged at intervals along the first direction. Each first vacuum hole is respectively connected to a vacuum device (not shown in the figure). Please refer to Figures 1 to 3 , a plurality of second vacuum holes 2031 are formed on the conveying part 2. The second vacuum holes 2031 can be arranged at intervals along the first direction, and during the process of the conveying part 2 conveying the battery cell 5, the conveying part 2 can move to make some of the second vacuum holes 2031 align with the first vacuum holes one by one, and the second vacuum holes 2031 can be communicated with the vacuum device through the first vacuum holes, so that the battery cell 5 is adsorbed on the conveying part 2.
[0042] It can be understood that the vacuum device can be started as needed, so that the second vacuum holes 2031 communicated with the first vacuum holes can vacuum-adsorb the battery cell 5 and adsorb the battery cell 5 on the conveying part 2. The vacuum device of the present application is a prior art and will not be elaborated here.
[0043] In some preferred embodiments, please refer to Figure 1 and Figure 3 , the anti-adhesive device for solar cell wafers further includes a sensing part 6 arranged on the bracket 1, so as to achieve more accurate spraying. Specifically, the sensing part 6, the conveying part 2 and the powder spraying part 3 can be respectively electrically connected to the control device. The sensing part 6 is used to sense whether the bonding point 501 is aligned with the corresponding powder spraying part 3. When the sensing part 6 detects that the bonding point 501 of the battery cell 5 is aligned with the corresponding powder spraying part 3, as Figures 1 to 3 shown, the control device can control the conveying part 2 to stop conveying the battery cell 5, so that the bonding point 501 of the battery cell 5 can remain aligned with the corresponding powder spraying part 3, and then the control device controls the powder spraying part 3 to spray powder. If there is residual glue at the bonding point 501, the anti-adhesive powder will adhere to the surface of the residual glue at the bonding point 501, so that the residual glue loses its viscosity. If there is no residual glue at the bonding point 501, the anti-adhesive powder will not adhere to the bonding point 501, and then the unadhered anti-adhesive powder on the battery cell 5 can be removed through the blowing part 4.
[0044] Exemplarily, the sensing part 6 can be a sensor, which is small and compact in structure and convenient for installation.
[0045] It can be understood that the blowing part 4 can also be electrically connected to the control device. The control device is a prior art and will not be elaborated here.
[0046] In some preferred embodiments, please refer to Figures 1 to 6 , the anti-sticking device for solar cell wafers further includes a driving part 7. The driving part 7 can be used to drive the conveying part 2 to convey the cell wafers 5, and the driving part 7 can be fixed to the bracket 1.
[0047] Exemplarily, please refer to Figures 1 to 6 , the driving part 7 can be a motor. It can be understood that the driving part 7 can also be other driving mechanisms, as long as it is ensured that the driving part 7 can drive the conveying part 2 to convey the cell wafers 5.
[0048] In some preferred embodiments, please refer to Figure 1 , Figure 2 , Figure 4 , Figure 5 and Figure 6 , the conveying part 2 includes a driving wheel 201, a driven wheel 202 and a conveyor belt 203. The driving wheel 201 is drivingly connected to the output end of the driving part 7, the driven wheel 202 is rotatably connected to the bracket 1, and the conveyor belt 203 is respectively drivingly connected to the driving wheel 201 and the driven wheel 202, so that the driving part 7 can drive the conveyor belt 203 to convey the cell wafers 5.
[0049] It can be understood that the second vacuum holes 2031 can be formed in the conveyor belt 203. In some examples, the second vacuum holes 2031 can be arranged at intervals along the length direction of the conveyor belt 203. For example, the second vacuum holes 2031 can cover the conveyor belt 203. Please refer to the figure.
[0050] In some preferred embodiments, please refer to Figure 1 , Figure 2 , Figure 3 , Figure 5 and Figure 6 , the anti-sticking device for solar cell wafers includes two conveying parts 2. The two conveying parts 2 are respectively connected to the bracket 1. The driving part 7 can be used to drive the two conveying parts 2 to synchronously convey the same cell wafer 5, as shown in Figures 1 to 3 , so as to reduce the contact area between the conveying part 2 and the cell wafer 5 and further avoid damaging the cell wafer 5.
[0051] In some examples, the anti-sticking device for solar cells includes a conveying part 2a, a conveying part 2b, and a driving part 7. The conveying part 2a and the conveying part 2b have the same structure and are symmetrically arranged on the bracket 1. The conveying part 2a includes a driving wheel 201a, a transmission wheel 202a, a transmission wheel 202b, and a conveyor belt 203a. The conveying part 2b includes a driving wheel 201b, a transmission wheel 202c, a transmission wheel 202d, and a conveyor belt 203b. The driving wheel 201a of the conveying part 2a and the driving wheel 201b of the conveying part 2b are respectively connected to the output end of the driving part 7 in a transmission manner, and the driving wheel 201a and the driving wheel 201b are coaxially arranged. A support shaft 8 and a support shaft 9 can also be arranged on the bracket 1. The support shaft 8 and the support shaft 9 are respectively arranged at both ends of the bracket 1 in the first direction. The transmission wheel 202a and the transmission wheel 202c are respectively rotatably connected to the support shaft 8, and the transmission wheel 202b and the transmission wheel 202d are respectively rotatably connected to the support shaft 9. The conveyor belt 203a is respectively connected to the driving wheel 201a, the transmission wheel 202a, and the transmission wheel 202b in a transmission manner. The conveyor belt 203b is respectively connected to the driving wheel 201b, the transmission wheel 202c, and the transmission wheel 202d in a transmission manner. When the driving part 7 works, it can drive the driving wheel 201a and the driving wheel 201b to rotate synchronously, so as to drive the conveyor belt 203a and the conveyor belt 203b to move synchronously, and thus convey the battery wafers 5 synchronously.
[0052] It can be understood that in other embodiments, only one conveying part 2 can also be provided. In other embodiments, the conveying part 2 can also be provided in one-to-one correspondence with the driving part 7. As long as it is ensured that the conveying part 2 can safely and effectively convey the battery wafers 5 in the first direction.
[0053] In some preferred embodiments, the powder spraying part 3 is detachably connected to the bracket 1, and the position of the powder spraying part 3 on the bracket 1 is adjustable.
[0054] Exemplarily, before production, the position of the powder spraying part 3 on the bracket 1 can be adjusted according to actual needs, so that the anti-sticking device for solar cells can be applicable to processing different battery wafers 5. It can be understood that adjusting the position of the powder spraying part 3 on the bracket 1 can be moving the powder spraying part 3 upward or downward, or moving the powder spraying part 3 leftward or rightward, or moving the powder spraying part 3 forward or backward, which is not limited herein.
[0055] Optionally, please refer to Figures 1 to 5 , a first connection seat 10 can be fixed on the powder spraying part 3. The first connection seat 10 is detachably connected to the bracket 1 through a first threaded member, and a first assembly hole 1001 for cooperating with the first threaded member is opened on the first connection seat 10. The first assembly hole 1001 can be an elongated hole. Exemplarily, the first threaded member can be a screw. The first threaded member can also be a bolt and a nut that cooperate with each other. The specific structure of the first threaded member is not limited in this application, so it will not be elaborated herein.
[0056] In some examples, the powder spraying part 3 can be a powder spraying gun, and the nozzle 301 of the powder spraying gun can be exactly aligned with the corresponding bonding point 501. It can be understood that in other embodiments, the powder spraying part 3 can also be other structures.
[0057] In some preferred embodiments, the blowing part 4 is detachably connected to the bracket 1, and the position of the blowing part 4 on the bracket 1 is adjustable. The blowing part 4 can be detachably connected to the bracket 1 through a second threaded part.
[0058] Exemplarily, before production, the position of the blowing part 4 on the bracket 1 can be adjusted according to actual needs, so that the anti-sticking device for solar cell wafers can be applicable to processing different cell wafers 5. It can be understood that adjusting the position of the blowing part 4 on the bracket 1 can be moving the blowing part 4 upward or downward, or adjusting the blowing direction of the blowing part 4. For example Figure 4 and Figure 5 as shown, the blowing direction of the blowing part 4 is perpendicular to the surface of the cell wafer 5, and the blowing direction of the blowing part 4 can also be adjusted to be non-perpendicular to the cell wafer 5, which can be set as needed and will not be limited here.
[0059] In some examples, the blowing part 4 can be an air knife. For example, the air knife can be an ordinary air knife or an ion air knife. It can be understood that in other embodiments, the blowing part 4 can also be other structures.
[0060] In some embodiments, the working method of the anti-sticking device for solar cell wafers is as follows: Place the cell wafer 5 on the conveyor belts 203a and 203b, and then the driving part 7 drives the conveyor belts 203a and 203b to synchronously convey the cell wafer 5 in the first direction until the sensing part 6 senses that the cell wafer 5 moves to the bonding point 501 aligned with the nozzle 301 of the corresponding powder spraying part 3, as Figure 1 , Figure 2 , Figure 4 and Figure 5 shown. Then the driving part 7 drives the conveyor belts 203a and 203b to stop moving. The vacuum device is started to adsorb the cell wafer 5 on the conveyor belts 203a and 203b, and then all the powder spraying parts 3 are started simultaneously to spray the anti-sticking powder to the corresponding bonding point 501 of the cell wafer 5. After the powder spraying part 3 finishes working, the driving part 7 drives the conveyor belts 203a and 203b to continue conveying the cell wafer 5 in the first direction. When the cell wafer 5 passes through the blowing part 4, the blowing part 4 is started to blow the excess anti-sticking powder on the cell wafer 5 clean, that is, to blow the anti-sticking powder that is not adhered to the surface of the residual glue clean, and the work is completed.
[0061] It can be understood that the vacuum device can stop working after the powder spraying section 3 finishes its work. When the air blowing section 4 starts, the vacuum device can also be started to adsorb the battery cell 5 onto the conveyor belt 203 and the conveyor belt 203. The present application does not limit the specific working timing of the vacuum device, as long as it is ensured that the conveying section 2 can effectively convey the battery cell 5, and the powder spraying section 3 can effectively spray the anti-sticking powder onto the bonding point 501 of the battery cell 5, and the air blowing section 4 can blow off the excess anti-sticking powder on the battery cell 5.
[0062] The technical features of the above embodiments can be combined arbitrarily. For the sake of concise description, 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, it should be considered as the scope recorded in this specification.
[0063] The above embodiments only represent the preferred implementation modes of the present utility model. The description is relatively specific and detailed, but it should not be construed as a limitation to the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several deformations and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the utility model patent shall be subject to the appended claims.
Claims
1. A solar cell sheet anti-sticking device, characterized in that: include: A bracket, and a conveying part, a powder spraying part and a blowing part respectively connected to the bracket; the conveying part is used to convey the battery cell along a first direction so that the battery cell passes through the powder spraying part and the blowing part in sequence; the powder spraying part is used to spray anti-sticking powder on the bonding point of the battery cell, and the anti-sticking powder can adhere to the residual glue surface of the bonding point to make the residual glue lose its stickiness; the blowing part is used to blow away the anti-sticking powder that is not adhered to the residual glue surface.
2. The solar cell sheet anti-sticking device according to claim 1, characterized in that: The battery cell has a first surface and a second surface that are arranged opposite to each other, and the first surface of the battery cell and / or the second surface of the battery cell is configured as a surface to be processed having the bonding point; The blowing parts are arranged in one-to-one correspondence with the surfaces to be processed of the battery sheets.
3. The solar cell sheet anti-sticking device according to claim 1, characterized in that: The battery sheet has at least one bonding point; The powder spraying parts are arranged in one-to-one correspondence with the bonding points.
4. The solar cell sheet anti-sticking device according to claim 3, characterized in that: The bracket is provided with a plurality of first vacuum holes spaced apart along the first direction, and the plurality of first vacuum holes are respectively connected to vacuum devices; The conveying part is provided with a plurality of second vacuum holes spaced apart along the first direction, and the second vacuum holes can be connected to the vacuum device through the first vacuum holes, so that the battery cell is adsorbed on the conveying part.
5. The solar cell sheet anti-sticking device according to claim 4, characterized in that: The solar cell sheet anti-sticking device further comprises a sensing portion provided on the bracket; The sensing part, the conveying part and the powder spraying part are electrically connected to the control device respectively, and the sensing part is used to sense whether the bonding point is aligned with the corresponding powder spraying part; The control device is used for controlling the conveying part to stop conveying the battery sheet and controlling the powder spraying part to spray powder if the bonding point is aligned with the corresponding powder spraying part.
6. The solar cell sheet anti-sticking device according to claim 1, characterized in that: The solar cell sheet anti-sticking device further comprises a driving unit, wherein the driving unit is used to drive the conveying unit to convey the solar cell sheet, and the driving unit is fixed to the bracket.
7. The solar cell sheet anti-sticking device according to claim 6, characterized in that: The conveying part comprises a driving wheel, a transmission wheel and a conveyor belt, the driving wheel is drivingly connected to the output end of the driving part, the transmission wheel is rotatably connected to the bracket, and the conveyor belt is drivingly connected to the driving wheel and the transmission wheel respectively.
8. The solar cell sheet anti-sticking device according to claim 6, characterized in that: The solar cell sheet anti-sticking device comprises two conveying parts, and the two conveying parts are respectively connected to the bracket; The driving unit is used to drive the two conveying units to synchronously convey the same battery cell.
9. The solar cell sheet anti-sticking device according to claim 1, characterized in that: The powder spraying part is detachably connected to the bracket, and the position of the powder spraying part on the bracket is adjustable.
10. The solar cell sheet anti-sticking device according to claim 1, characterized in that: The blowing part is detachably connected to the bracket, and the position of the blowing part on the bracket is adjustable.