Defoaming device of developing machine and solar cell preparation system
By designing a defoaming device with condensation components and drive mechanisms in the developing machine, foam is eliminated physically, solving the problem of foam affecting the developing effect in wet developing machines. This achieves efficient defoaming without affecting the developing effect of the chemical solution.
Patent Information
- Application Number
- CN202520265500.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-19
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2035-02-19
AI Technical Summary
In existing technologies, foam generated during the production process of wet developing machines affects the developing effect and has a poor defoaming effect. Using defoaming agents may have a negative impact on the developing effect of the chemical solution.
Design a defoaming device for a developing machine, including a condensing device and a driving device. When the condensing device detects foam in the chemical solution tank, it moves downward in the height direction to contact the foam and eliminate it by driving the driving device, thereby reducing the temperature of the chemical solution through physical means to eliminate foam.
It effectively eliminates foam, minimizes the impact on the solution, improves the defoaming effect, and does not affect the developing effect, while reducing the decomposition of the solution components.
Smart Images
Figure CN223696872U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of solar cell technology, and in particular to a defoaming device for a developing machine and a solar cell preparation system. Background Technology
[0002] During the wet developing process, the chemical solution generates a large amount of foam due to heating and spraying, which affects the developing effect of solar cell silicon wafers. It is necessary to eliminate this foam during production to avoid the potential impact of defoaming agents and reduce the chemical solution's contact with air and decomposition at high temperatures, thus affecting its concentration. Current foam elimination methods involve adding defoaming agents to the chemical solution to reduce foam generation during use. However, the defoaming agents themselves may negatively impact the developing effect, and their defoaming effect is often poor. Utility Model Content
[0003] Based on this, this application provides a defoaming device for a developing machine and a solar cell preparation system to solve the problems of poor developing and defoaming effects in the prior art.
[0004] In a first aspect, this application provides a defoaming device for a developing machine, including a condensing device, a driving device, and a chemical tank;
[0005] The medicine tank is used to hold medicine, the condenser is disposed in the medicine tank, and in the first position, the distance from the lower surface of the condenser to the bottom of the medicine tank in the height direction is greater than the liquid level of the medicine in the medicine tank.
[0006] The driving device is connected to the condensing device. When there is foam in the medicine liquid in the medicine tank, the driving device drives the condensing device to move downward from the first position in the height direction to contact the foam, so as to eliminate the foam.
[0007] Optionally, the defoaming device of the developing machine further includes a foam sensor, which is disposed in the liquid tank and above the liquid surface. The projection of the foam sensor on the liquid surface along the height direction does not overlap with the projection of the condensing device on the liquid surface along the height direction. The foam sensor is used to detect whether there is foam in the liquid in the liquid tank.
[0008] Optionally, the condensing device includes a condensing plate, which is parallel to the liquid surface of the medicine in the medicine tank.
[0009] Optionally, the condenser pan has a receiving cavity for containing condensate.
[0010] Optionally, the condenser pan is provided with a condenser tube, and the condensate flows inside the condenser tube.
[0011] Optionally, the condensing device further includes an inlet pipe and an outlet pipe, the inlet pipe being connected to one end of the condensing tube and the outlet pipe being connected to the other end of the condensing tube.
[0012] Optionally, the driving device includes a cylinder, the piston rod of which is connected to the condensing plate. When foam is present in the medicine solution in the medicine tank, the cylinder is driven to make the condensing plate contact the foam, thereby eliminating the foam.
[0013] Optionally, the lower surface of the condenser plate is rectangular.
[0014] Optionally, the condensation device may include one or more.
[0015] Secondly, this application provides a solar cell fabrication system, including a defoaming device for a developing machine as described in any of the above technical solutions.
[0016] The defoaming device for a developing machine and the solar cell fabrication system provided in this application include a condenser, a driving device, and a chemical solution tank. The chemical solution tank is used to hold the chemical solution. The condenser is disposed in the chemical solution tank, and in a first position, the distance from the lower surface of the condenser to the bottom of the chemical solution tank in the height direction is greater than the liquid level of the chemical solution in the tank. The driving device is connected to the condenser and is used to drive the condenser to move downward in the height direction from the first position to contact the foam when there is foam in the chemical solution in the chemical solution tank, so as to eliminate the foam. Through the above-mentioned physical defoaming method, foam in the chemical solution can be eliminated, minimizing the impact on the chemical solution during the defoaming process. This not only does not affect the developing effect but also eliminates foam and improves the defoaming effect. Attached Figure Description
[0017] Figure 1 A first structural schematic diagram of the defoaming device for a developing machine provided in an embodiment of this application;
[0018] Figure 2 This is a second structural schematic diagram of the defoaming device for a developing machine provided in an embodiment of this application;
[0019] Figure 3 This is a third structural schematic diagram of the defoaming device for a developing machine provided in an embodiment of this application;
[0020] Figure 4 This is a fourth structural schematic diagram of the defoaming device for a developing machine provided in an embodiment of this application.
[0021] The meanings of the labels in the attached diagram are as follows:
[0022] 10-Condensing device; 11-Condensing plate; 12-Condensing tube; 13-Inlet pipe; 14-Outlet pipe; 20-Drive device; 21-Cylinder; 22-Piston rod; 30-Medicine tank; 40-Foam sensor; 50-Medicine; 60-Foam. Detailed Implementation
[0023] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings. Preferred embodiments of this application are shown in the drawings. However, this application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of this application.
[0024] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component.
[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
[0026] like Figures 1 to 4 As shown, this is a defoaming device for a developing machine according to this application. In each figure, arrows indicate the directions of up / down, front / back, left / right. Unless otherwise specified, the directions of up / down, front / back, and left / right are described according to the directions indicated by these arrows. Furthermore, in each figure, the front / back direction is the second direction, the up / down direction is the height direction, and the left / right direction is the first direction; the first direction, the second direction, and the height direction are perpendicular to each other. The height direction corresponds to the up / down movement direction of the condensing device 10 in the developing machine's defoaming device.
[0027] Figure 1 This is a first structural schematic diagram of the defoaming device for a developing machine according to an embodiment of this application. It should be noted that, if substantially the same result is achieved, the defoaming device for a developing machine in this application does not necessarily require... Figure 1 The structures shown are limited. For example... Figure 1 As shown, the defoaming device of the developing machine includes a condenser 10, a drive device 20, and a chemical tank 30.
[0028] The medicine tank 30 is used to hold medicine 50. The condensing device 10 is disposed in the medicine tank 30. In the first position, the distance from the lower surface of the condensing device 10 to the bottom of the medicine tank 30 in the height direction is greater than the liquid level of the medicine 50 in the medicine tank 30.
[0029] The driving device 20 is connected to the condensing device 10. When there is foam 60 in the medicine liquid 50 in the medicine liquid tank 30, the driving device 20 drives the condensing device 10 to move downward from the first position in the height direction to contact the foam 60 so as to eliminate the foam 60.
[0030] The defoaming device for a developing machine provided in this application includes a condenser 10, a driving device 20, and a chemical tank 30. The chemical tank 30 is used to hold chemical solution 50. The condenser 10 is disposed in the chemical tank 30, and in a first position, the distance from the lower surface of the condenser 10 to the bottom of the chemical tank 30 in the height direction is greater than the liquid level of the chemical solution 50 in the chemical tank 30. The driving device 20 is connected to the condenser 10. When foam 60 is present in the chemical solution 50 in the chemical tank 30, the driving device 20 drives the condenser 10 to move downward in the height direction from the first position to contact the foam 60, so as to eliminate the foam 60. By using physical defoaming, the foam 60 in the chemical solution 50 can be eliminated, minimizing the impact on the chemical solution 50 during the defoaming process. This not only does not affect the developing effect but also eliminates the foam 60, thereby improving the defoaming effect.
[0031] In one specific embodiment, Figure 1 This can be a cross-sectional view of the defoaming device of the developing machine in the first direction. Figure 1 The central condenser 10 is in the first position. A schematic diagram of the second structure of the defoaming device for the developing machine is shown below. Figure 2 As shown, Figure 2 The condensing device 10 is moved away from the first position and comes into contact with the foam 60. The driving device 20 drives the condensing device 10 to move downward in the height direction from the first position to contact the foam 60. Since the temperature of the condensing device 10 is low, the foam 60 can be eliminated. After the foam 60 is eliminated, the driving device 20 can also drive the condensing device 10 to move away from the liquid surface of the medicine 50 in the height direction, so that the condensing device 10 returns to the first position. When the medicine 50 in the medicine tank 30 contains foam 60 again, the driving device 20 drives the condensing device 10 to move downward in the height direction from the first position to contact the foam 60 again, eliminating the foam 60.
[0032] In some embodiments, the defoaming device of the developing machine further includes a foam sensor 40, which is disposed in the liquid tank 30 and located above the liquid surface. The projection of the foam sensor 40 on the liquid surface along the height direction does not overlap with the projection of the condensing device 10 on the liquid surface along the height direction. The foam sensor 40 is used to detect whether there is foam 60 in the liquid 50 in the liquid tank 30.
[0033] In one specific embodiment, such as Figure 1 and Figure 2 As shown, the foam sensor 40 is disposed inside the medicine tank 30 and above the liquid surface. The foam sensor 40 can be installed on the inner wall of the medicine tank 30. The projection of the foam sensor 40 along the height direction onto the liquid surface does not overlap with the projection of the condensing device 10 along the height direction onto the liquid surface. This ensures that when the driving device 20 drives the condensing device 10 to move downwards from the first position in the height direction to contact the foam 60, the condensing device 10 avoids contact with the foam sensor 40, thus preventing it from affecting the subsequent detection of the foam 60. The foam sensor 40 is used to detect whether there is foam 60 in the medicine liquid 50 in the medicine tank 30 or whether the foam 60 exceeds a preset value (the preset value can be 1 or an integer greater than 1). The foam sensor 40 can detect the foam 60 in the medicine liquid 50 in the medicine tank 30 once every preset time (e.g., every 5 seconds). The foam sensor 40 can be a contact foam sensor 40 or a non-contact foam sensor 40.
[0034] In this embodiment of the application, by placing the foam sensor 40 inside the medicine tank 30 and above the liquid surface to detect whether there is foam 60 in the medicine liquid 50 in the medicine tank 30, the labor cost can be reduced. When foam 60 is detected in the medicine liquid 50 in the medicine tank 30, the condensing device 10 is driven to move downward from the first position in the height direction to contact the foam 60 so that the foam 60 is eliminated.
[0035] In some embodiments, the condensing device 10 includes a condensing plate 11, which is parallel to the liquid surface of the liquid 50 in the liquid tank 30.
[0036] In this embodiment of the application, by making the condensing device 10 include a condensing plate 11, and making the condensing plate 11 parallel to the liquid surface of the liquid 50 in the liquid tank 30, defoaming efficiency can be provided.
[0037] In some embodiments, the condenser plate 11 has a receiving cavity for containing condensate.
[0038] In this embodiment, by having a receiving cavity for containing condensate in the condensate pan 11, the condensate pan 11 is kept at a lower temperature, thereby maintaining a better defoaming effect.
[0039] In some embodiments, the condenser plate 11 is provided with a condenser tube 12, and the condensate flows within the condenser tube 12. The condensate may be low-temperature condensate.
[0040] In this embodiment, a condenser tube 12 is provided in the condenser plate 11, so that the condensate flows in the condenser tube 12, thereby ensuring that the condenser plate 11 is at a low temperature and that the condenser plate 11 maintains a good defoaming effect.
[0041] In some embodiments, the condenser 10 further includes an inlet pipe 13 and an outlet pipe 14, wherein the inlet pipe 13 is connected to one end of the condenser pipe 12 and the outlet pipe 14 is connected to the other end of the condenser pipe 12.
[0042] In this embodiment, the condenser 10 further includes an inlet pipe 13 and an outlet pipe 14. The inlet pipe 13 is connected to one end of the condenser tube 12, and the outlet pipe 14 is connected to the other end of the condenser tube 12, so that the condensate enters the condenser tube 12 in the condenser plate 11 from the inlet pipe 13 and flows out from the outlet pipe 14, so as to ensure that the condenser plate 11 is at a low temperature and maintains a good defoaming effect.
[0043] In some embodiments, the driving device 20 includes a cylinder 21, the piston rod 22 of which is connected to the condensing plate 11. The cylinder 21 is used to drive the condensing plate 11 to contact the foam 60 when there is foam 60 in the medicine liquid 50 in the medicine liquid tank 30, so as to eliminate the foam 60.
[0044] In this embodiment of the application, by setting up a cylinder 21, the piston rod 22 of the cylinder 21 is connected to the condenser plate 11. When there is foam 60 in the medicine liquid 50 in the medicine liquid tank 30, the cylinder 21 is driven to make the condenser plate 11 contact the foam 60 so as to eliminate the foam 60, thereby improving the elimination efficiency of foam 60.
[0045] In some embodiments, the lower surface of the condenser plate 11 is a rectangular surface.
[0046] In this embodiment, the lower surface of the condensation plate 11 is made into a rectangular surface to increase the contact area between the condensation plate 11 and the foam 60, thereby improving the elimination efficiency of the foam 60.
[0047] In some embodiments, the condensation device 10 includes one or more.
[0048] In one specific embodiment, a third structural schematic diagram of the defoaming device of the developing machine is shown below. Figure 3 As shown, Figure 3 This is a three-dimensional schematic diagram of the defoaming device on a developing machine. Figure 3 The device includes a condenser 10 and a corresponding foam sensor 40. The liquid 50 in the liquid tank 30 can flow in the first direction and can flow from the projection position of the foam sensor 40 along the height direction on the liquid surface to the projection position of the condenser 10 along the height direction on the liquid surface. A fourth structural schematic diagram of the defoaming device of the developing machine is shown below. Figure 4 As shown, Figure 4It includes two condensing devices 10, corresponding to two foam sensors 40. The first foam sensor 40 detects the presence of foam 60 in the medicine liquid 50 in the medicine liquid tank 30, which can activate the first condensing device 10. The second foam sensor 40 detects the presence of foam 60 in the medicine liquid 50 in the medicine liquid tank 30, which can activate the second condensing device 10.
[0049] In this embodiment of the application, foam 60 in the solution 50 can be eliminated by physical defoaming, minimizing the impact of defoaming on the solution 50. This not only does not affect the developing effect, but also eliminates the foam 60 generated by the solution 50 during the operation of the developing machine, thus improving the defoaming effect. In addition, when using the condenser device 10 for defoaming, the temperature of the solution 50 can be reduced, thereby reducing the decomposition of the effective components of the solution 50.
[0050] This application provides a solar cell fabrication system, including a defoaming device for a developing machine as described in any of the above embodiments.
[0051] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0052] The above embodiments merely illustrate preferred implementations of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the scope of protection of this application. Therefore, the scope of protection of this patent application should be determined by the appended claims.
Claims
1. A defoaming device for a developing station, characterized by, The condensing device, the driving device and the liquid tank are included. The liquid tank is used for containing liquid medicine, the condensing device is arranged in the liquid tank, and the distance from the lower surface of the condensing device to the bottom of the liquid tank in the height direction is greater than the liquid level of the liquid medicine in the liquid tank when the condensing device is in the first position. The driving device is connected with the condensing device, and the driving device is used for driving the condensing device to move downward in the height direction to contact the foam to eliminate the foam when the liquid medicine in the liquid tank has foam.
2. The developing device according to claim 1, wherein The defoaming device of the developing machine further includes a foam sensor arranged above the liquid surface in the liquid tank, a projection of the foam sensor on the liquid surface in the height direction does not overlap with a projection of the condensing device on the liquid surface in the height direction, and the foam sensor is used for detecting whether the liquid medicine in the liquid tank has foam.
3. The developing station defoaming device of claim 1, wherein The condensing device includes a condensing disc parallel to the liquid surface of the liquid medicine in the liquid tank.
4. The developing device according to claim 3, wherein The condensing disc has a containing cavity for containing condensed liquid.
5. The developing station defoaming device of claim 3, wherein The condensing disc is provided with a condensing pipe, and the condensed liquid flows in the condensing pipe.
6. The developing station defoaming device according to claim 5, wherein The condensing device further includes an inlet pipe and an outlet pipe, the inlet pipe is connected with one end of the condensing pipe, and the outlet pipe is connected with the other end of the condensing pipe.
7. The developing station defoaming device of claim 3, wherein The driving device includes a pneumatic cylinder, a piston rod of the pneumatic cylinder is connected with the condensing disc, and the pneumatic cylinder is used for driving the condensing disc to contact the foam to eliminate the foam when the liquid medicine in the liquid tank has foam.
8. The developing station defoaming device according to claim 3, wherein The lower surface of the condensing disc is a rectangular surface.
9. The processor of claim 1, wherein the processor is further configured to: The condensing device includes one or more.
10. A solar cell production system characterized by comprising: a substrate cleaning device; a substrate drying device; a substrate coating device; a substrate annealing device; and a substrate inspection device. The defoaming device of the developing machine includes the defoaming device of the developing machine according to any one of claims 1 to 9.