Micro-heating liquid supply device applied to slit coating

Abstract

The micro-heating liquid supply device comprises a liquid storage tank, an installation frame is fixedly installed on the outer wall of the liquid storage tank, an adding pipe opening is fixedly connected to the top of the liquid storage tank, a stock solution quality improving mechanism is arranged on the liquid storage tank, and the stock solution quality improving mechanism comprises a pump machine and a micro-heating square pipe. An output pipe opening is fixedly connected to the right side of the micro-heating square pipe, a copper plate is fixedly installed on the inner wall of the micro-heating square pipe, an electric heating piece is fixedly installed on the outer side of the copper plate, and heat exchange fins are fixedly installed on the inner side of the copper plate. Through the integral design of the micro-heating square tube, the stock solution output during the operation of the pump can flow through the inner cavity of the micro-heating square tube, the electric heating sheet can be controlled to work in the process, and the stock solution flowing in the inner cavity of the micro-heating square tube is heated by penetrating through the copper plate, so that the condition that the environment temperature is relatively low is avoided; the raw liquid can be rapidly cooled to an unsuitable temperature in the conveying pipeline, and the use effect of the raw liquid is guaranteed.

Description

Technical Field

[0001] The utility model relates to a micro-heating liquid supply device applied to slit coating, belonging to the technical field of liquid supply devices. Background Art

[0002] In the process of manufacturing solar cells, slit coating technology is mainly used for coating perovskite precursor solutions, electron transport layers, hole transport layers, etc. The slit coating technology coats a wet film in a non-contact manner, obtaining a wet film with a controllable thickness on the basis of ensuring that the original substrate is not damaged. The thickness and uniformity of the wet film formation will affect the efficiency of the final product.

[0003] During the implementation of slit coating, a liquid supply device is required to output the stock solution. The existing liquid supply device does not have the function of heating the stock solution. If the temperature of the processing environment is relatively low, the stock solution will quickly drop to an inappropriate temperature inside the delivery pipeline, thereby affecting the use effect of the stock solution. Summary of the Utility Model

[0004] Based on the above background, the purpose of the utility model is to provide a micro-heating liquid supply device applied to slit coating to solve the problems described in the background art.

[0005] In order to achieve the above utility model purpose, the utility model provides the following technical solutions:

[0006] A micro-heating liquid supply device applied to slit coating includes a liquid storage tank. An installation frame is fixedly installed on the outer wall of the liquid storage tank. A filling pipe opening is fixedly connected to the top of the liquid storage tank. A stock solution quality improvement mechanism is arranged on the liquid storage tank. The stock solution quality improvement mechanism includes a pump and a micro-heating square pipe. An output pipe opening is fixedly connected to the right side of the micro-heating square pipe. A copper plate is fixedly installed on the inner wall of the micro-heating square pipe. An electric heating sheet is fixedly installed on the outer side of the copper plate. A heat exchange fin is fixedly installed on the inner side of the copper plate. An inner support rod is fixedly installed on the inner wall of the micro-heating square pipe. One end of the inner support rod away from the inner wall of the micro-heating square pipe is fixedly installed with a diversion frame.

[0007] Preferably, a lifting leg is fixedly installed on the top of the micro-heating square pipe. A support seat is fixedly installed at one end of the lifting leg away from the micro-heating square pipe. A groove is formed in the top of the support seat.

[0008] Preferably, an air thermometer is fixedly installed at the bottom of the inner wall of the groove. An aluminum foil layer is fixedly connected to the bottom of the support seat.

[0009] Preferably, the pump is fixedly installed at the bottom of the liquid storage tank. The input end of the pump is fixedly connected to the bottom of the liquid storage tank. The output end of the pump is fixedly connected to a horizontal pipe. The horizontal pipe is fixedly installed at the bottom of the liquid storage tank.

[0010] Preferably, a multi-way pipe is fixedly connected to the right side of the horizontal pipe. An output solenoid valve is fixedly connected to the bottom of the multi-way pipe. An output elbow is fixedly connected to the bottom of the output solenoid valve. One end of the output elbow away from the output solenoid valve is fixedly connected to the left side of the micro-heating square pipe.

[0011] Preferably, a return solenoid valve is fixedly connected to the top of the multi-way pipe. A shunt square pipe is fixedly connected to the top of the return solenoid valve. An extension pipe is fixedly connected to the left side of the shunt square pipe.

[0012] Preferably, the left side of the extension pipe extends into the inner cavity of the liquid storage tank and is fixedly connected with an annular pipe. Return spray heads are fixedly connected to both the top and the bottom of the annular pipe.

[0013] Compared with the prior art, the utility model has the following advantages:

[0014] Through the overall design of the micro-heating square pipe, the original liquid output during the operation of the pump will flow through the inner cavity of the micro-heating square pipe. During the process, the electric heating sheet can be controlled to work, passing through the copper plate to heat the original liquid flowing in the inner cavity of the micro-heating square pipe, avoiding the problem that the original liquid will quickly drop to an inappropriate temperature inside the conveying pipeline due to the low ambient temperature, ensuring the use effect of the original liquid. Through the design of the heat exchange fins, the heat exchange rate between the electric heating sheet and the original liquid can be improved, enhancing the heating effect. Through the design of the diversion frame, the original liquid inside the micro-heating square pipe can be diverted, enabling the original liquid to fully contact with the heat exchange fins, further enhancing the heating effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the provided drawings.

[0016] Figure 1 It is a three-dimensional structural diagram of the present utility model;

[0017] Figure 2 It is a sectional view of the liquid storage tank of the present utility model;

[0018] Figure 3 It is a structural diagram of the micro-heating square pipe of the present utility model;

[0019] Figure 4 It is an exploded structural diagram of the whole micro-heating square pipe of the present utility model;

[0020] Figure 5This is a structural diagram of the support seat of the utility model.

[0021] In the figure: 1. Liquid storage tank; 11. Mounting frame; 12. Adding nozzle; 2. Raw liquid quality improvement mechanism; 21. Pump; 22. Horizontal pipe; 23. Multi-way pipe; 24. Return solenoid valve; 241. Diversion square pipe; 242. Extension pipe; 243. Annular pipe; 244. Return nozzle; 25. Output solenoid valve; 26. Output elbow; 27. Micro-heating square pipe; 271. Output nozzle; 272. Inner support rod; 273. Guide frame; 274. Copper plate; 275. Electric heater; 276. Heat exchange fin; 28. Lifting leg; 281. Support seat; 282. Air thermometer; 283. Aluminum foil layer. DETAILED DESCRIPTION

[0022] The following is a further detailed description of the technical solution of the present invention through specific embodiments and in conjunction with the accompanying drawings. It should be understood that the implementation of the present invention is not limited to the following embodiments, and any form of modification and / or change made to the present invention will fall within the scope of protection of the present invention.

[0023] In this utility model, unless otherwise specified, all parts and percentages are by weight. The equipment and raw materials used are commercially available or commonly used in the art. The methods in the following embodiments, unless otherwise specified, are conventional methods in the art. The components or equipment in the following embodiments, unless otherwise specified, are all common standard parts or components known to those skilled in the art. Their structures and principles are known to those skilled in the art through technical manuals or routine experimental methods.

[0024] The following detailed description of the embodiments of the present invention is made in conjunction with the accompanying drawings. In the following detailed description, for ease of explanation, many specific details are set forth to provide a comprehensive understanding of the embodiments of the present invention. However, one or more embodiments can also be implemented by those skilled in the art without these specific details.

[0025] like Figures 1 - 5As shown in the figure, a micro-heating liquid supply device applied to slot coating includes a liquid storage tank 1. An installation frame 11 is fixedly installed on the outer wall of the liquid storage tank 1. A filling pipe orifice 12 is fixedly connected to the top of the liquid storage tank 1. A primary liquid quality improvement mechanism 2 is provided on the liquid storage tank 1. The primary liquid quality improvement mechanism 2 includes a pump 21 and a micro-heating square pipe 27. An output pipe orifice 271 is fixedly connected to the right side of the micro-heating square pipe 27. A copper plate 274 is fixedly installed on the inner wall of the micro-heating square pipe 27. An electric heating sheet 275 is fixedly installed on the outer side of the copper plate 274. A heat exchange fin 276 is fixedly installed on the inner side of the copper plate 274. An inner support rod 272 is fixedly installed on the inner wall of the micro-heating square pipe 27. One end of the inner support rod 272 away from the inner wall of the micro-heating square pipe 27 is fixedly installed with a flow guide frame 273. When the pump 21 operates, the primary liquid output will flow through the inner cavity of the micro-heating square pipe 27. By controlling the electric heating sheet 275 to work, it can pass through the copper plate 274 to heat-treat the primary liquid flowing in the inner cavity of the micro-heating square pipe 27, ensuring the use effect of the primary liquid in the case of relatively low ambient temperature. Through the design of the heat exchange fin 276, the heat exchange rate between the electric heating sheet 275 and the primary liquid can be increased, improving the heating effect. Through the design of the flow guide frame 273, the primary liquid inside the micro-heating square pipe 27 can be guided, enabling the primary liquid to come into full contact with the heat exchange fin 276, further improving the heating effect. The electric heating sheet 275 is an existing structure, and its working temperature is set at 50 - 70 °C to achieve the function of micro-heating and avoid the problem that too high a temperature will affect the quality of the primary liquid.

[0026] In this embodiment, a lifting leg 28 is fixedly installed on the top of the micro-heating square pipe 27. A support seat 281 is fixedly installed at one end of the lifting leg 28 away from the micro-heating square pipe 27. A groove is formed on the top of the support seat 281. An air thermometer 282 is fixedly installed at the bottom of the inner wall of the groove. An aluminum foil layer 283 is fixedly connected to the bottom of the support seat 281. Through the design of the air thermometer 282, the ambient temperature can be monitored. Both the air thermometer 282 and the electric heating sheet 275 are electrically connected to an external controller. The air thermometer 282 can feedback the temperature data to the external controller and control the electric heating sheet 275 to perform heating work when the temperature is lower than the preset value, avoiding the problem that continuous operation of the electric heating sheet 275 will cause excessive power consumption. Through the design of the aluminum foil layer 283, the influence of the heat generated during the operation of the electric heating sheet 275 on the air thermometer 282 is reduced.

[0027] In this embodiment, the pump 21 is fixedly installed at the bottom of the liquid storage tank 1. The input end of the pump 21 is fixedly connected to the bottom of the liquid storage tank 1. A horizontal pipe 22 is fixedly connected to the output end of the pump 21. The horizontal pipe 22 is fixedly installed at the bottom of the liquid storage tank 1. A multi-way pipe 23 is fixedly connected to the right side of the horizontal pipe 22. An output solenoid valve 25 is fixedly connected to the bottom of the multi-way pipe 23. An output elbow 26 is fixedly connected to the bottom of the output solenoid valve 25. One end of the output elbow 26 away from the output solenoid valve 25 is fixedly connected to the left side of the micro-heating square pipe 27. A return solenoid valve 24 is fixedly connected to the top of the multi-way pipe 23. A shunt square pipe 241 is fixedly connected to the top of the return solenoid valve 24. An extension pipe 242 is fixedly connected to the left side of the shunt square pipe 241. The left side of the extension pipe 242 extends into the inner cavity of the liquid storage tank 1 and is fixedly connected to an annular pipe 243. Return spray nozzles 244 are fixedly connected to both the top and the bottom of the annular pipe 243. By controlling the operation of the pump 21 and simultaneously opening the output solenoid valve 25, the function of outputting the stock solution can be realized. By controlling the operation of the pump 21 and simultaneously opening the return solenoid valve 24, the stock solution can enter the inside of the shunt square pipe 241, then flow back into the annular pipe 243 from the extension pipe 242, and then be output from the return spray nozzles 244, driving the stock solution to circulate internally, avoiding the problem that the stock solution will segregate when standing still for a long time and ensuring the quality of the stock solution.

[0028] The working principle of a micro-heating liquid supply device applied to slit coating in the present utility model is as follows: By controlling the operation of the pump 21 and simultaneously opening the output solenoid valve 25, the function of outputting the stock solution can be realized from the output pipe orifice 271. If the ambient temperature is relatively low, the electric heating sheet 275 is controlled to work simultaneously, and the stock solution flowing in the inner cavity of the micro-heating square pipe 27 is heated through the copper plate 274. When idle, the pump 21 is controlled to operate, and the return solenoid valve 24 is simultaneously opened, so that the stock solution enters the inside of the shunt square pipe 241, then flows back into the annular pipe 243 from the extension pipe 242, and then is output from the return spray nozzles 244, driving the stock solution to circulate internally.

[0029] Specific examples are used in this article to elaborate on the principle and implementation mode of the present utility model. The description of the above embodiments is only used to help understand the method and its core idea of the present utility model. It should be pointed out that for those of ordinary skill in the art in this technical field, without departing from the principle of the present utility model, several improvements and modifications can still be made to the present utility model, and these improvements and modifications also fall within the protection scope of the claims of the present utility model.

Claims

1. A micro-heating liquid supply device applied to slot coating, comprising a liquid storage tank (1), characterized in that: An installation frame (11) is fixedly installed on the outer wall of the liquid storage tank (1). A filling pipe orifice (12) is fixedly connected to the top of the liquid storage tank (1). A raw liquid quality improvement mechanism (2) is arranged on the liquid storage tank (1). The raw liquid quality improvement mechanism (2) includes a pump (21) and a micro-heating square pipe (27). An output pipe orifice (271) is fixedly connected to the right side of the micro-heating square pipe (27). A copper plate (274) is fixedly installed on the inner wall of the micro-heating square pipe (27). An electric heating sheet (275) is fixedly installed on the outer side of the copper plate (274). A heat exchange fin (276) is fixedly installed on the inner side of the copper plate (274). An inner support rod (272) is fixedly installed on the inner wall of the micro-heating square pipe (27). One end of the inner support rod (272) far away from the inner wall of the micro-heating square pipe (27) is fixedly installed with a diversion frame (273).

2. The micro-heating liquid supply device applied to slot coating according to claim 1, wherein: A lifting leg (28) is fixedly installed on the top of the micro-heating square pipe (27). A support seat (281) is fixedly installed at one end of the lifting leg (28) far away from the micro-heating square pipe (27). A groove is formed in the top of the support seat (281).

3. The micro-heating liquid supply device applied to slot coating according to claim 2, characterized in that: An air thermometer (282) is fixedly installed at the bottom of the inner wall of the groove. An aluminum foil layer (283) is fixedly connected to the bottom of the support seat (281).

4. The micro-heating liquid supply device applied to slot coating according to claim 1, wherein: The pump (21) is fixedly installed at the bottom of the liquid storage tank (1). The input end of the pump (21) is fixedly connected to the bottom of the liquid storage tank (1). The output end of the pump (21) is fixedly connected to a horizontal pipe (22). The horizontal pipe (22) is fixedly installed at the bottom of the liquid storage tank (1).

5. The micro-heating liquid supply device applied to slit coating according to claim 4, characterized in that: A multi-way pipe (23) is fixedly connected to the right side of the horizontal pipe (22). An output solenoid valve (25) is fixedly connected to the bottom of the multi-way pipe (23). An output elbow pipe (26) is fixedly connected to the bottom of the output solenoid valve (25). One end of the output elbow pipe (26) far away from the output solenoid valve (25) is fixedly connected to the left side of the micro-heating square pipe (27).

6. The micro-heating liquid supply device applied to slot coating according to claim 5, wherein: A return solenoid valve (24) is fixedly connected to the top of the multi-way pipe (23). A shunt square pipe (241) is fixedly connected to the top of the return solenoid valve (24). An extension pipe (242) is fixedly connected to the left side of the shunt square pipe (241).

7. The micro-heating liquid supply device applied to slit coating according to claim 6, characterized in that: The left side of the extension pipe (242) extends into the inner cavity of the liquid storage tank (1) and is fixedly connected to an annular pipe (243). Return spray nozzles (244) are fixedly connected to both the top and the bottom of the annular pipe (243).

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