High-efficiency colloid photonic crystal ultrasonic atomization self-assembly system

Through the self-assembly system of ultrasonic atomization of high-efficiency colloidal photonic crystals, ultrasonic atomization and precise control technology, the problems of low atomization efficiency and poor uniformity of colloidal photonic crystal particles are solved, and efficient and low-cost high-quality photonic crystal preparation is achieved, which is suitable for large-scale industrial applications.

CN223288342UActive Publication Date: 2025-09-02SOUTHWEST JIAOTONG UNIV
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Patent Information

Application Number
CN202422455701.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-11
Publication Date
2025-09-02
Estimated Expiration
2034-10-11

AI Technical Summary

Technical Problem

The existing colloidal photonic crystal particles have low atomization efficiency and poor uniformity, low production process efficiency, difficult to ensure monodispersity, and there are defects such as polycrystalline, vacancy, and dislocation, which affects product quality and reliability.

Method used

High-efficiency colloidal photonic crystal ultrasonic atomization self-assembly system is adopted, including atomization system, image acquisition system and self-assembly module. The ultrasonic generator and transducer work together to atomize the colloid solution, and combine the sensor system and control system to achieve precise control of the self-assembly process.

Benefits of technology

It improves the atomization efficiency and refinement of colloidal particles, ensures the stability and reliability of the self-assembly process, produces high-quality single-crystal structure photonic crystals, reduces the preparation cost, and has the potential for large-scale application.

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Abstract

The utility model discloses a high-efficiency colloid photonic crystal ultrasonic atomization self-assembly system, and relates to the technical field of photonic crystals. In order to solve the problems that existing colloidal photonic crystal particles are low in atomization efficiency and poor in uniformity, the technical scheme includes that the colloidal photonic crystal particle atomization device comprises an atomization system, an image acquisition system, a self-assembly module, a sensor system and a control system, and the atomization system and the image acquisition system are arranged on the two sides of the self-assembly module respectively; the atomization system comprises a feeding assembly, a cooling assembly, an atomization assembly and a support, the feeding end of the feeding assembly is connected with the liquid conveying system, the discharging end of the feeding assembly is connected with the cooling assembly and the atomization assembly, and the atomization assembly is arranged above the self-assembly module through the support; the sensor system, the image acquisition system and the atomization system are respectively in communication connection with the control system. The colloidal photonic crystal self-assembly device integrates the functions of atomization, self-assembly, image acquisition, sensing detection, control and the like, and high-efficiency and high-quality self-assembly of colloidal photonic crystals is realized.
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Description

Technical Field

[0001] The utility model relates to the technical field of photonic crystals, in particular to a high-efficiency colloidal photonic crystal ultrasonic atomization self-assembly system. Background Art

[0002] Colloidal photonic crystal technology currently faces numerous challenges: inherent material limitations such as pseudophotonic bandgap, low dielectric constant contrast, narrow bandgap, and limited variety restrict its application. Regarding the fabrication process, low assembly efficiency, low solids content, and difficulty ensuring monodispersity hinder its large-scale industrial application. Furthermore, performance stability and reliability issues, such as defects such as polycrystalline, vacancies, dislocations, and cracks, as well as the uncontrollable environmental factors during the fabrication process, affect product quality. Therefore, to promote the widespread application of colloidal photonic crystals, it is necessary to explore new materials, improve fabrication processes, and enhance product performance and reliability. Utility Model Content

[0003] The purpose of the utility model is to provide a high-efficiency colloidal photonic crystal ultrasonic atomization self-assembly system to solve the problems of low atomization efficiency and poor uniformity of existing colloidal photonic crystal particles.

[0004] The technical solution of the utility model to solve the above technical problems is as follows:

[0005] A high-efficiency colloidal photonic crystal ultrasonic atomization self-assembly system includes an atomization system, an image acquisition system, and a self-assembly module. The atomization system and the image acquisition system are respectively arranged on both sides of the self-assembly module; the atomization system includes a feeding component, a cooling component, an atomization component, and a bracket. The feeding end of the feeding component is connected to the liquid delivery system, and the discharging end of the feeding component is respectively connected to the cooling component and the atomization component. The atomization component is arranged above the self-assembly module via the bracket.

[0006] It also includes a sensor system and a control system. The sensor system, image acquisition system and atomization system are respectively connected to the control system for communication.

[0007] Preferably, the feeding assembly includes an ultrasonic generator, a transducer and a mixing device arranged in sequence from top to bottom, a liquid inlet is provided on the top of the ultrasonic generator, the liquid inlet is connected to the mixing device through a pipeline, and an air inlet channel is opened at the side end of the mixing device.

[0008] Preferably, the cooling assembly includes a cooling device, a coolant inlet and a coolant outlet are provided on the top of the cooling device, and the bottom of the cooling device is connected to the amplitude rod.

[0009] Preferably, a liquid collecting tank is provided inside the cooling assembly, and the liquid collecting tank is communicated with the external cavity of the amplitude transformer.

[0010] Preferably, the self-assembly module includes a sample stage and a lifting mechanism arranged at the bottom of the sample stage.

[0011] Preferably, the image acquisition system includes a backlight source, a microscope and a high-speed camera.

[0012] Preferably, the sensor system includes a temperature and humidity sensor arranged above the self-assembly module and a vibration sensor respectively arranged on the side wall and the bottom of the sample stage.

[0013] The utility model has the following beneficial effects:

[0014] High-efficiency atomization: Through the synergistic effect of the ultrasonic generator 111 and the transducer 112, the colloidal solution is atomized into tiny particles, thereby improving the efficiency of atomization and the degree of particle refinement.

[0015] Precise control: The integration of sensor system and control system enables precise control of the self-assembly environment and solves the impact of environmental factors on the self-assembly process.

[0016] High-quality self-assembly: Through dynamic real-time monitoring and precise control of the self-assembly process, single-crystal photonic crystals are manufactured, significantly improving the repeatability and reliability of component performance.

[0017] Reduce costs: Compared with traditional manual assembly or complex equipment, this system has the advantages of low cost, high efficiency and large-scale application. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the atomization system structure of the utility model;

[0020] Figure 3 This is a schematic structural diagram of the feeding assembly of the present utility model;

[0021] Figure 4 This is a schematic diagram of the cooling assembly structure of the present utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the image acquisition system of the present utility model;

[0023] Figure 6 This is a schematic diagram of the sample stage structure of the present utility model;

[0024] Figure 7 This is a schematic structural diagram of a microscope and a high-speed camera of the present utility model.

[0025] Figures 1 to 7The reference numerals shown in the figure respectively represent: atomization system 1, feeding component 11, ultrasonic generator 111, transducer 112, mixing device 113, liquid inlet 114, air inlet channel 115, cooling component 12, coolant inlet 121, coolant outlet 122, amplitude transformer 123, liquid collecting tank 124, atomization component 13, bracket 14, image acquisition system 2, microscope 21, high-speed camera 22, self-assembly module 3, sample stage 31, lifting mechanism 32, temperature and humidity sensor 41, vibration sensor 42. DETAILED DESCRIPTION

[0026] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0027] This embodiment provides a high-efficiency colloidal photonic crystal ultrasonic atomization self-assembly system, referring to Figure 1-7 , the specific structure and function are described as follows:

[0028] 1. System Overview

[0029] The system primarily includes an atomization system 1, an image acquisition system 2, a self-assembly module 3, a sensor system, and a control system. The atomization system 1 and the image acquisition system 2 are positioned on either side of the self-assembly module 3, working together to achieve efficient, high-quality self-assembly of colloidal photonic crystals.

[0030] 2. Atomization system

[0031] The atomization system 1 is responsible for atomizing the colloidal solution into tiny particles and evenly dispersing them into the self-assembly module 3. The atomization system includes a liquid / air supply module, an atomization generator, an atomization nozzle, etc. The atomization generator mainly includes a feed component 11, a cooling component 12, an atomization component 13, and a bracket 14. The atomization generator can improve the problem that traditional atomizers with liquid level indicators are relatively insensitive to small changes in liquid level. The cavitation mechanism used by ultrasonic atomizers refers to the generation, growth, and subsequent rapid collapse of bubbles or cavities in liquids. When ultrasonic waves are present, under the action of the alternating sound pressure field, these points (cavitation nuclei, which can be bubbles, ions, etc.) are easily pulled apart to produce cavitation.

[0032] Feed assembly 11: This assembly comprises, from top to bottom, an ultrasonic generator 111, a transducer 112, and a mixing device 113. A liquid inlet 114 is located at the top of ultrasonic generator 111 for receiving the colloidal solution from the liquid delivery system. This inlet 114 is connected to mixing device 113 via a pipe, allowing the colloidal solution to flow into the mixing device 113. An air inlet channel 115 is provided at the side of mixing device 113 for introducing gas to pre-mix the colloidal solution in preparation for the next step of atomization.

[0033] Cooling assembly 12: This includes a cooling device with a coolant inlet 121 and a coolant outlet 122 at its top, which circulate coolant to remove heat generated by the system. A horn 123 is connected to the bottom of the cooling device. This horn 123 vibrates under the action of the transducer 112, thereby atomizing the mixed gas-liquid mixture. A liquid collection tank 124 is also located within the cooling assembly 12 to collect oversized droplets, which then flow back to the raw material pool through the trough to ensure atomization quality.

[0034] Atomization assembly 13 : is disposed above the self-assembly module 3 via a bracket 14 , and is used to receive atomized particles from the cooling assembly 12 and evenly disperse them into the self-assembly module 3 .

[0035] 3. Self-assembly module

[0036] The self-assembly module 3 is the core component of the colloidal photonic crystal self-assembly, and includes a sample stage 31 and a lifting mechanism 32 disposed at the bottom of the sample stage 31. The lifting mechanism 32 is driven by a motor to achieve the lifting function of the sample stage 31 for subsequent observation and analysis.

[0037] The lifting mechanism 32 is driven by an electric motor (not shown) to achieve its lifting function. This mechanism can be subdivided into the following parts: an electric lifting mechanism, which converts the motor's rotation into vertical motion of the sample stage through an eccentric wheel-link mechanism; a support structure, which supports the lifting mechanism and ensures its stability; and a control system, which controls the operation and stopping of the lifting mechanism. The colloidal self-assembly liquid pool (sample stage 31) provides a suitable environment and conditions for the colloidal particles to self-assemble into an orderly structure. Once a stable colloidal crystal film is formed, the film is extracted onto the sample stage by the lifting mechanism 32 for subsequent microscopic observation.

[0038] 4. Image Acquisition System

[0039] The image acquisition system 2 includes a backlight, a microscope 21, and a high-speed camera 22. The microscope 21 is used to magnify and observe the self-assembly of the colloidal particles. The high-speed camera 22 can capture the self-assembly process of the colloidal particles in real time, providing support for mechanism research. The backlight is used to assist in observing the colloidal film formation process (not shown in the figure).

[0040] 5. Sensor System and Control System

[0041] A sensor system (including temperature, humidity, and vibration sensors) monitors various environmental parameters during the self-assembly process, such as temperature, humidity, and vibration, in real time. These sensors feed the collected data back to the control system, which precisely controls the atomization system 1, image acquisition system 2, and self-assembly module 3 within preset parameter ranges to ensure the stability and reliability of the self-assembly process. A PT100 temperature sensor is commonly used for temperature measurement. A humidity sensor uses a hygroresistor. A piezoelectric vibration sensor is used as the vibration sensor. When the direction changes, the polarity of the charge also changes. The charge generated by the force applied to the crystal is proportional to the magnitude of the external force, resulting in high accuracy.

[0042] In summary, this embodiment demonstrates significant advantages in manufacturing high-quality photonic crystals. It not only improves the control accuracy of particle size, but also effectively enhances the self-assembly efficiency and quality of the crystals, and has broad application prospects.

[0043] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A high-performance colloidal photonic crystal ultrasonic atomization self-assembly system, characterized in that: The invention comprises an atomization system (1), an image acquisition system (2) and a self-assembly module (3), wherein the atomization system (1) and the image acquisition system (2) are respectively arranged on both sides of the self-assembly module (3); the atomization system (1) comprises a feeding component (11), a cooling component (12), an atomization component (13) and a bracket (14); the feeding end of the feeding component (11) is connected to a liquid delivery system, and the discharging end of the feeding component (11) is respectively connected to the cooling component (12) and the atomization component (13); the atomization component (13) is arranged above the self-assembly module (3) through the bracket (14); It also includes a sensor system and a control system, wherein the sensor system, the image acquisition system (2) and the atomization system (1) are respectively connected to the control system for communication.

2. The high-performance colloidal photonic crystal ultrasonic atomization self-assembly system according to claim 1 is characterized in that: The feeding assembly (11) comprises an ultrasonic generator (111), a transducer (112) and a mixing device (113) arranged in sequence from top to bottom. A liquid inlet (114) is provided at the top of the ultrasonic generator (111). The liquid inlet (114) is connected to the mixing device (113) through a pipeline. An air inlet channel (115) is provided at the side end of the mixing device (113).

3. The high-performance colloidal photonic crystal ultrasonic atomization self-assembly system according to claim 1, characterized in that: The cooling assembly (12) comprises a cooling device, the top of which is provided with a cooling liquid inlet (121) and a cooling liquid outlet (122), and the bottom of the cooling device is connected to a horn (123).

4. The high-performance colloidal photonic crystal ultrasonic atomization self-assembly system according to claim 3, characterized in that: A liquid collecting tank (124) is provided inside the cooling assembly (12), and the liquid collecting tank (124) is communicated with the external cavity of the amplitude transformer (123).

5. The high-performance colloidal photonic crystal ultrasonic atomization self-assembly system according to claim 1, characterized in that: The self-assembly module (3) comprises a sample stage (31) and a lifting mechanism (32) arranged at the bottom of the sample stage (31).

6. The high-performance colloidal photonic crystal ultrasonic atomization self-assembly system according to claim 1, characterized in that: The image acquisition system (2) comprises a backlight source, a microscope (21) and a high-speed camera (22).

7. The high-performance colloidal photonic crystal ultrasonic atomization self-assembly system according to claim 5, characterized in that: The sensor system comprises a temperature and humidity sensor (41) arranged above the self-assembly module (3) and a vibration sensor (42) respectively arranged on the side wall and the bottom of the sample stage (31).