Battery piece exposure equipment
By tilting the light source and equipping it with a detection and cleaning module in the solar cell exposure equipment, the problem of foreign object interference on the mask is solved, achieving efficient automatic cleaning and improving the exposure quality and efficiency of the solar cells.
Patent Information
- Application Number
- CN202520250991.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-17
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2035-02-17
AI Technical Summary
In existing solar cell exposure equipment, foreign objects on the photomask can interfere with the exposure of solar cells, leading to abnormal batch exposures, and manual cleaning is costly.
Design a battery cell exposure device with an inclined light source. A detection module detects foreign objects on a mask, and a cleaning module, including a cleaning roller and a cleaning guide, moves in a second direction. The surface of the cleaning roller has an adhesive property to adhere to the foreign objects, thus achieving automatic cleaning.
This effectively avoids the impact of foreign objects on the solar cell exposure, improves exposure quality and efficiency, and reduces the time and cost of manual cleaning.
Smart Images
Figure CN223582323U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application belongs to the technical field of battery pieces, and particularly relates to a battery piece exposure device. BACKGROUND
[0002] In the production technology of the existing battery pieces, a layer of photosensitive adhesive film is usually coated on the surface of the battery piece, a light source is used to irradiate the battery piece with the photosensitive adhesive film, and a mask plate with patterns is used to shield the light source. During the process of exposing the lower battery piece to the light source through the mask plate, the pattern area on the mask plate can prevent the light source from irradiating the surface of the battery piece, and the photosensitive adhesive in the non-shading area will change in nature after being irradiated by the light source. In the subsequent developing process, the photosensitive adhesive whose nature has not changed will be washed away, and the copper film at the bottom will be exposed, so as to achieve the purpose of slotting. Subsequently, the growth of the copper grid line in the recessed groove where the copper film is exposed after development can be carried out.
[0003] In the current battery piece exposure device, the printing light source is usually arranged above the printing platform, so that the printing light source vertically emits light downward. The mask plate arranged between the printing light source and the printing platform is used to expose the battery piece arranged on the printing platform. Since the gap between the battery piece and the mask plate is very close during the exposure process, the large particles of dust and battery piece debris in the workshop will be adsorbed on the surface of the battery piece. When the battery piece is transported to the printing process for exposure, the foreign matter on the surface of the battery piece will be adhered to the mask plate, which will cause interference to the exposure of the light source by the foreign matter on the mask plate during the subsequent exposure operation of other battery pieces, so that the batch exposure of the battery pieces is abnormal. CONTENT OF THE UTILITY MODEL
[0004] The application provides a battery piece exposure device, which can clean the mask plate in time, avoid the influence of the foreign matter on the mask plate on the exposure of the battery piece, and effectively improve the exposure quality and efficiency of the battery piece.
[0005] In order to solve the above technical problems, the application provides a battery piece exposure device, which comprises a mask plate and a printing platform arranged in a first direction.
[0006] A light source is arranged on the side of the mask plate away from the printing platform, and the light signal emitted by the light source is refracted through the mask plate and irradiates the printing platform in the first direction.
[0007] A detection module for image acquisition of the mask plate is arranged between the light source and the mask plate, and a cleaning module moving in a second direction is arranged between the mask plate and the printing platform, and the cleaning module is used for cleaning the side of the mask plate close to the printing platform.
[0008] As a further improvement of the application, the cleaning module comprises a cleaning roller arranged close to the mask plate, a cleaning rail arranged in the second direction, and a driving member for driving the cleaning roller to move on the cleaning rail.
[0009] As a further improvement of the application, a sliding block connected with the cleaning roller is arranged on the cleaning rail to slide, and the other end of the sliding block is connected with the driving member to drive the sliding block and the cleaning roller to move on the cleaning rail by the driving member.
[0010] As a further improvement of the application, a connecting rod is arranged through the side of the sliding block close to the cleaning roller, and a rotating shaft is arranged through the cleaning roller, and the two ends of the connecting rod are fixedly connected with the two ends of the rotating shaft.
[0011] As a further improvement of the application, the surface of the cleaning roller is adhesive to adhere the foreign matters attached on the mask plate.
[0012] As a further improvement of the application, the detection module comprises an acquisition device for acquiring images of the mask plate, a host controller for receiving the acquired images, and analyzing the acquired images.
[0013] When the foreign matters exist on the mask plate, the host controller drives the cleaning module to clean the side of the mask plate close to the printing platform.
[0014] As a further improvement of the application, the projection of the acquisition device and the mask plate in the first direction does not overlap.
[0015] As a further improvement of the application, the first direction is the direction of gravity, and the second direction is perpendicular to the first direction.
[0016] As a further improvement of the application, the angle between the light signal emitted by the light source and the first direction is 30° to 60°.
[0017] As a further improvement of the application, the side of the printing platform away from the mask plate is further provided with a base, and a support column is further arranged between the base and the printing platform.
[0018] The battery piece exposure device provided by the application sets the light source obliquely on the printing platform, so that the light signal emitted by the light source is refracted along the first direction to the battery piece through the mask plate, the mask plate is photographed and collected by the detection device, and it is judged whether there is foreign matter on the mask plate, when it is confirmed that there is foreign matter on the mask plate, the side of the mask plate close to the printing platform is cleaned by the cleaning module, so as to avoid the influence of the foreign matter on the mask plate on the exposure of the battery piece, and the problem of abnormal batch exposure of the battery piece, and the time cost waste caused by manual cleaning can be reduced, and the exposure quality and efficiency of the battery piece are effectively improved. BRIEF DESCRIPTION OF DRAWINGS
[0019] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative labor.
[0020] Figure 1 The structural diagram of the battery piece exposure device provided in the related art is shown in the figure.
[0021] Figure 2 The structural diagram of the battery piece exposure device provided in the related art is shown in the figure.
[0022] Figure 3 The structural diagram of the printing platform in the battery piece exposure device provided in the related art is shown in the figure.
[0023] Figure 4 The structural diagram of the cleaning module in the battery piece exposure device provided in the related art is shown in the figure.
[0024] Figure 5 The structural diagram of the driving member in the battery piece exposure device provided in the related art is shown in the figure.
[0025] Explanation of reference signs:
[0026] 10-light source; 20-mask plate; 30-printing platform; 31-base; 32-supporting column; 40-detection module; 41-acquisition device; 50-cleaning module; 51-cleaning roller; 52-cleaning guide rail; 53-driving member; 54-sliding block; 55-connecting rod; 56-rotating shaft; 57-driving shaft; 100-battery piece. DETAILED DESCRIPTION
[0027] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application will be further described in detail below with reference to the drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and not intended to limit the present application.
[0028] In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise explicitly specified. All directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between components in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications will also change accordingly. In addition, the terms "comprise" and "have" and any variations thereof are intended to cover non-exclusive inclusion.
[0029] In order to make the description of the present disclosure more detailed and complete, the following describes the embodiments of the present application and specific examples in an illustrative manner; but this is not the only form of implementation or use of the specific embodiments of the present application. The embodiments include the features of the specific embodiments and the method steps and their order for constructing and operating these specific embodiments. However, other specific embodiments can also be used to achieve the same or equivalent functions and step sequences.
[0030] In the existing battery piece production technology, a layer of photosensitive adhesive film is usually coated on the surface of the battery piece, a light source is used to irradiate the battery piece with photosensitive adhesive film, and a MASK plate (mask plate) with patterns is used to shield the light source. When the light source is exposed to the battery piece below through the mask plate, the pattern area on the mask plate can prevent the light source from irradiating the surface of the battery piece, and the photosensitive adhesive in the non-shading area will change its properties after being irradiated by the light source. In the subsequent development process, the photosensitive adhesive whose properties have not changed will be washed away, exposing the underlying copper film, thereby achieving the purpose of slotting. Subsequently, the growth of copper grid lines in the recessed groove where the copper film is exposed after development can be carried out.
[0031] Please refer to Figure 1As a structural schematic diagram of a battery piece exposure device provided in the related art, in the current battery piece exposure device, a printing light source is arranged above a printing platform, the printing light source emits light vertically downward, and a mask plate arranged between the printing light source and the printing platform is used to expose a battery piece arranged on the printing platform. Since the gap between the battery piece and the mask plate 20 during exposure is only 70 microns, and the thickness of a battery piece is at least 90 microns, large particles of dust and battery piece debris in the workshop can be adsorbed on the surface of the battery piece. When the battery piece is transported to the printing process for exposure, the foreign matter on the surface of the battery piece can be adhered to the mask plate, causing the foreign matter on the mask plate to interfere with the illumination of the light source during subsequent exposure of other battery pieces, and causing poor exposure of the battery piece.
[0032] Therefore, the present application provides a battery piece exposure device, which can clean the mask plate in time, avoid the influence of foreign matter on the mask plate on the exposure of the battery piece, and effectively improve the exposure quality and efficiency of the battery piece. Figures 2-5 The present application provides a battery piece exposure device, which can clean the mask plate in time, avoid the influence of foreign matter on the mask plate on the exposure of the battery piece, and effectively improve the exposure quality and efficiency of the battery piece.
[0033] The present application provides a battery piece exposure device, which can clean the mask plate in time, avoid the influence of foreign matter on the mask plate on the exposure of the battery piece, and effectively improve the exposure quality and efficiency of the battery piece. Figure 2 As a structural schematic diagram of a battery piece exposure device provided in the present application, the battery piece exposure device provided by the present application comprises a mask plate 20 and a printing platform 30 arranged in a first direction. During exposure of a battery piece 100, the battery piece 100 is placed on the printing platform 30, so that the battery piece 100 is placed between the mask plate 20 and the printing platform 30.
[0034] As an optional embodiment, the side of the mask plate 20 away from the printing platform 30 is obliquely provided with a light source 10. The light signal emitted by the light source 10 is refracted through the mask plate 20 and irradiated onto the printing platform 30 in the first direction. A detection module 40 for image acquisition of the mask plate 20 is arranged between the light source 10 and the mask plate 20. The detection module 40 is used to determine whether there is foreign matter on the mask plate 20.
[0035] Further, a cleaning module 50 capable of moving in a second direction is arranged between the mask plate 20 and the printing platform 30. Preferably, the cleaning module 50 is arranged close to the mask plate 20. When the detection module 40 determines that there is foreign matter on the mask plate 20, the cleaning module 50 is controlled to clean the side of the mask plate 20 close to the printing platform 30.
[0036] It can be understood that since the battery piece 100 is placed between the mask plate 20 and the printing platform 30, generally, the side of the mask plate 20 close to the printing platform 30 will have foreign matter, and therefore, the cleaning module 50 is arranged to clean the side of the mask plate 20 close to the printing platform 30. Of course, the upper and lower sides of the mask plate 20 can also be cleaned, in which case, as long as the corresponding structure is arranged to enable the cleaning module 50 to move in the first direction, the present application does not make too many limitations.
[0037] Please refer to Figure 4 The structure diagram of the cleaning module 50 in the battery piece exposure equipment provided by the embodiment of the present application is shown in the figure, which includes a cleaning roller 51 arranged close to the mask plate 20, a cleaning guide rail 52 arranged in the second direction, and a driving member 53 for driving the cleaning roller 51 to move in the second direction. When the detection module 40 determines that there is foreign matter on the mask plate 20, the driving member 53 drives the cleaning roller 51 to move in the second direction. Since the surface of the cleaning roller 51 has adhesion, it can adhere to the foreign matter attached to the mask plate 20 while moving in the second direction.
[0038] For example, double-sided tape can be arranged on the surface of the cleaning roller 51, one side of which can be firmly attached to the surface of the cleaning roller 51, and the other end can be attached to the foreign matter attached to the mask plate 20. The cleaning roller 51 can also be made of a material with adhesion. The above arrangements of the cleaning roller 51 are feasible, and the present application does not make too many limitations.
[0039] Specifically, please refer to Figure 5 The structure diagram of the driving member 53 in the battery piece exposure equipment provided by the embodiment of the present application is shown in the figure, and the cleaning guide rail 52 is slidably provided with a sliding block 54 connected with the cleaning roller 51. One end of the sliding block 54 is connected with the cleaning roller 51, and the other side of the sliding block 54 is connected with the driving shaft 57 of the driving member 53. In this way, the driving member 53 can drive the sliding block 54 to move in the second direction on the cleaning guide rail 52 through the driving shaft 57, and further drive the cleaning roller 51 to move in the second direction relative to the mask plate 20, thereby achieving the cleaning of the mask plate 20.
[0040] Of course, in order to ensure the cleaning effect of the mask plate 20, the driving member 53 can also be arranged to drive the cleaning roller 51 to move back and forth in the second direction, and the present application does not make too many limitations.
[0041] In an optional embodiment, please continue to refer to Figure 4The connecting rod 55 is arranged in parallel with the cleaning roller 51, and the rotating shaft 56 is arranged through the cleaning roller 51, and the two ends of the connecting rod 55 are fixedly connected with the two ends of the rotating shaft 56, so that the cleaning roller 51 and the sliding block 54 are fixedly connected.
[0042] As an optional embodiment, please refer to Figure 3 The detection module 40 includes a collection device 41 for collecting images of the mask plate 20, and a host controller (not shown in the figure) for receiving the collected images of the collection device 41 and analyzing the collected images. When there is foreign matter on the mask plate 20, a black dark spot will appear in the collected images, and the host controller can determine whether a black dark spot appears in the collected images, thereby determining whether there is foreign matter on the mask plate 20.
[0043] When the host controller determines that there is foreign matter on the mask plate 20, the cleaning module 50 can be driven to clean the mask plate 20. After cleaning, the mask plate 20 is collected by the collection device 41 to confirm that the foreign matter is removed, and the normal operation of the machine is restored. Otherwise, the cleaning module 50 is continuously driven to clean the mask plate 20. If there is still foreign matter after repeated cleaning, an alarm can be sounded or a light can be flashed to remind the relevant personnel to clean the mask plate 20 in time to avoid the problem of abnormal batch exposure of the battery sheet 100.
[0044] For example, the collection device 41 can be a common industrial camera such as a CCD (Charge Coupled Device camera) camera, a CMOS (Complementary Metal Oxide Semiconductor) camera, etc. Its resolution can reach millions of pixels or even higher. High resolution can capture the tiny details on the mask plate 20 to accurately detect whether there is foreign matter on it. The host controller can also be in the form of a common controller such as an MCU (Microcontroller Unit), a PFGA (Field Programmable Gate Array), a PLC (Programmable Logic Controller), etc. The specific form of the collection device 41 and the host controller is not limited.
[0045] Preferably, please continue to refer to Figure 3The projection of the collecting device 41 and the mask plate 20 in the first direction should not overlap each other, so as to avoid the projection of the collecting device 41 on the mask plate 20 row, and to avoid affecting the normal exposure of the battery piece 100 and affecting the complete image collection of the mask plate 20. In actual application, the specific position of the collecting device 41 can be adjusted, so that the details on the complete mask plate 20 can be captured. Those skilled in the art should know this.
[0046] In a specific embodiment provided in the present application, the first direction is preferably set as the gravity direction, and the second direction is set as the horizontal direction perpendicular to the first direction.
[0047] On this basis, the light source 10 is arranged to be inclined to the printing platform 30, so that the included angle between the light signal emitted by the light source 10 and the first direction is an acute angle, and the included angle is preferably set to 30° to 60°. At the same time, it is ensured that the light signal emitted by the light source 10 is a parallel light signal, which is vertically irradiated to the battery piece 100 on the printing platform 30 after being refracted by the mask plate 20, so as to perform exposure processing on the battery piece 100.
[0048] Further, in order to ensure the stability of the printing platform 30, the base 31 is further arranged on the side of the printing platform 30 away from the mask plate 20, and the supporting column 32 is further arranged between the base 31 and the printing platform 30.
[0049] It can be understood that the size of the printing platform 30 should be not less than the size of the battery piece 100, so as to realize the stable support of the battery piece 100. The length of the cleaning roller 51 is preferably set to be adapted to the length of the side edge of the mask plate 20, so as to reduce the number of reciprocating cleaning of the cleaning roller 51 on the mask plate 20, and to ensure the cleaning effect.
[0050] The battery piece exposure device provided in the present application arranges the light source to be inclined to the printing platform, so that the light signal emitted by the light source is irradiated to the battery piece along the first direction after being refracted by the mask plate. The mask plate is photographed and collected by the detection device, and it is judged whether there is foreign matter on the mask plate. When it is confirmed that there is foreign matter on the mask plate, the side of the mask plate close to the printing platform is cleaned by the cleaning module, so as to avoid the influence of the foreign matter on the mask plate on the exposure of the battery piece, and to avoid the problem of abnormal exposure of the battery piece. In addition, the time cost caused by manual cleaning can be reduced, and the exposure quality and efficiency of the battery piece are effectively improved.
[0051] It can be understood that the technical features of the above embodiments can be combined arbitrarily. In order to make the description simple, all possible combinations of the technical features in the above embodiments are not described, however, as long as the combinations of the technical features do not exist contradictory, they should be considered as the scope of the present application.
[0052] The above embodiments are merely exemplary embodiments adopted for illustrating the principles of the present application, and the present application is not limited thereto. Various modifications and improvements can be made by those of ordinary skill in the art without departing from the spirit and essential characteristics of the present application, and such modifications and improvements are also considered to be within the scope of protection of the present application.
Claims
1. A solar cell exposure apparatus, characterized in that, The mask plate and the printing platform are arranged in the first direction; The side of the mask plate away from the printing platform is obliquely provided with a light source, and the light signal emitted by the light source is refracted through the mask plate and irradiated to the printing platform in the first direction; A detection module for image acquisition of the mask plate is arranged between the light source and the mask plate, and a cleaning module for cleaning the side of the mask plate close to the printing platform is arranged between the mask plate and the printing platform.
2. The solar cell exposure apparatus according to claim 1, wherein The cleaning module comprises a cleaning roller arranged close to the mask plate, a cleaning guide rail arranged in the second direction, and a driving member for driving the cleaning roller to move on the cleaning guide rail.
3. The solar cell exposure apparatus according to claim 2, wherein A sliding block connected with the cleaning roller is arranged on the cleaning guide rail to slide, and the other end of the sliding block is connected with the driving member to drive the sliding block and the cleaning roller to move on the cleaning guide rail.
4. The cell exposure apparatus according to claim 3, wherein A connecting rod is arranged through the side of the sliding block close to the cleaning roller, and a rotating shaft is arranged through the cleaning roller.
5. The solar cell exposure apparatus according to claim 2, wherein The surface of the cleaning roller is adhesive to adhere foreign matters attached to the mask plate.
6. The solar cell exposure apparatus of claim 1, wherein The detection module comprises an acquisition device for image acquisition of the mask plate, a host controller for receiving the acquisition image of the acquisition device and analyzing the acquisition image. When foreign matters exist on the mask plate, the host controller drives the cleaning module to clean the side of the mask plate close to the printing platform.
7. The solar cell exposure apparatus of claim 6, wherein the light source is a light emitting diode. The projections of the acquisition device and the mask plate in the first direction do not overlap each other.
8. The solar cell exposure apparatus of claim 1, wherein The first direction is the direction of gravity, and the second direction is perpendicular to the first direction.
9. The solar cell exposure apparatus of claim 7, wherein the light source is a light emitting diode. The included angle between the light signal emitted by the light source and the first direction is 30° to 60°.
10. The solar cell exposure apparatus of claim 1, wherein The side of the printing platform away from the mask plate is further provided with a base, and a support column is further arranged between the base and the printing platform.