A desktop photoreactor

CN224656748UActive Publication Date: 2026-08-21SHANGHAI 3S TECH CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202521526229.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-07-21
Publication Date
2026-08-21
Estimated Expiration
2035-07-21

AI Technical Summary

Technical Problem

[0004]本实用新型的目的在于提供一种桌面型光反应器,以解决上述背景技术中提出的因控温不精、散热不足,易导致过热,影响设备稳定性和使用寿命问题

Benefits of technology

[0028] (1) This utility model adopts a modular design by setting up components such as a display screen, a lamp source component and a condensate pan, and integrating the light source module with the microfluidic channel. When in use, this design can achieve precise temperature control, efficient heat dissipation and efficient illumination, and can avoid light leakage. Cooling water is introduced into the condensate pan, and the heat generated by the lamp source component is absorbed by the efficient thermal conductivity of the metal material. The fan accelerates the air flow and exhausts the heat around the condensate pan and the lamp source component to the outside of the equipment. The heat dissipation holes on the side wall of the main body of the equipment further help to exhaust the heat and ensure the stable internal temperature of the equipment.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224656748U_ABST
    Figure CN224656748U_ABST
Patent Text Reader

Abstract

The utility model belongs to the field of light reaction technology, and disclose a desktop type photoreactor, include: equipment main part, be equipped with frame assembly in the equipment main part, the side wall of equipment main part is installed with display screen, the side wall of equipment main part is equipped with the heat dissipation hole, be equipped with the light source subassembly in the equipment main part, one side of light source subassembly is equipped with cooling assembly, the inner wall bottom of equipment main part is equipped with passageway clamp, the bottom of equipment main part is installed with pipeline subassembly, the passageway component has five layers in common, and the inner three layers are double -sided flow channel, and the outermost two layers are temperature -controlled flow channel, the side outer wall of light source subassembly and passageway component combination installs the fan, the utility model discloses control display screen, light source subassembly and passageway component etc. part through control module, adopt modularization design, integrate light source module and microfluidic channel, when using, this design can realize accurate temperature control, high -efficient heat dissipation and high -efficient illumination, and can avoid light leakage.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This invention belongs to the field of photoreaction technology, specifically relating to a desktop photoreactor. Background Technology

[0002] A desktop photoreactor is a device used to control, reflect, and guide light, widely used in photochemical experiments and various fields requiring photocatalytic reactions. Its main function is to change the direction, intensity, and distribution of light by reflecting, diffusing, or refracting it, ensuring that the light emitted from the lamp source is fully and evenly distributed across the entire side of the internal flow channel module. Furthermore, the temperature-controlled flow channel within the flow channel module and the cooling components on the outside of the light source module can instantly remove heat accumulated in the light source and flow channel. A directional circulating fan can also remove radiant heat from the surface space of the flow channel, ensuring a stable ambient temperature around the flow channel module.

[0003] Existing desktop photoreactors often face challenges in temperature control during prolonged use. Many existing photoreactors lack precise temperature control systems, leading to significant temperature fluctuations in the light source components and internal equipment. This temperature instability not only affects the overall stability of the equipment but may also shorten its lifespan. Furthermore, some photoreactors rely solely on passive cooling methods, such as natural ventilation or simple heat sinks. These methods are often ineffective and inefficient in dissipating heat under high-intensity light or prolonged continuous operation. Especially under high loads or high ambient temperatures, the equipment is prone to overheating, which not only affects performance but may also damage internal electronic components and the light source assembly, ultimately reducing efficiency and reliability. Utility Model Content

[0004] The purpose of this invention is to provide a desktop photoreactor to solve the problems mentioned in the background art, such as overheating caused by imprecise temperature control and insufficient heat dissipation, which affect the stability and service life of the equipment.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a desktop photoreactor, comprising: a main body, a frame assembly inside the main body, a display screen mounted on the side wall of the main body, heat dissipation holes opened on the side wall of the main body, a lamp source assembly inside the main body, a cooling assembly on one side of the lamp source assembly, a channel clamp at the bottom of the inner wall of the main body, a channel assembly mounted above the channel clamp, a pipe assembly mounted at the bottom of the channel clamp, a condensate tray inside the cooling assembly and mounted on the side wall of the lamp source assembly, a fan assembled inside the main body, and a motor and a control module inside the main body;

[0006] The left side plate, right side plate, and top cover plate are respectively installed on the left side, right side, and top of the main body of the device.

[0007] Through the above technical solution:

[0008] During use, the user starts the photoreactor device via the display screen on the main unit. The control module built into the display screen utilizes existing technology to achieve intelligent control. After startup, the motor drives the fan to start working, ensuring that the initial temperature of the lamp source components and channel components is within a safe range. Simultaneously, the built-in temperature sensor and NTC thermistor monitor the temperature in real time.

[0009] The display screen allows users to adjust the temperature in real time, ensuring the reaction proceeds at the desired temperature. A temperature sensor and NTC thermistor provide temperature monitoring and overheat protection. When the temperature exceeds the set value, the NTC thermistor limits the current and cuts off the current electronically or mechanically, protecting the circuit and equipment.

[0010] Cooling water flows through the condensate pan, where the high thermal conductivity of the metal material absorbs the heat generated by the lamp source components. A fan accelerates airflow, expelling heat from the condensate pan and the area around the lamp source components to the outside of the equipment. Ventilation holes on the side walls of the main body further aid in heat dissipation, ensuring a stable internal temperature.

[0011] Light enters the microfluidic channel (fixed by the channel clamp) through the channel assembly, and through the special flow channel design, the reaction liquid is fully stirred and mixed, increasing the light area and improving the reaction effect. The channel assembly has five layers, the inner three layers are double-sided flow channels, and the outermost two layers are temperature-controlled flow channels. A fan is installed on the side outer wall of the lamp source assembly and the channel assembly combined.

[0012] The motor regulates the flow rate of the reaction solution by controlling the pumps or valves in the piping assembly, ensuring that the reaction solution flows at an appropriate rate in the microfluidic channel.

[0013] Users monitor the experiment process via the display screen and adjust parameters such as light exposure time, intensity, temperature, and flow rate as needed. After the experiment is completed, the user turns off the equipment; the motor and fan stop working, and the equipment enters standby mode.

[0014] This desktop photoreactor utilizes a condensate pan and fan in tandem to control the temperature of the lamp source components and microfluidic channels, ensuring the chemical reaction proceeds at the optimal temperature. The combination of heat dissipation holes and the fan effectively improves the equipment's heat dissipation efficiency, ensuring timely removal of internal heat and preventing overheating that could affect reaction efficiency or damage the equipment. Furthermore, the integrated design of the light source module and microchannel not only guarantees that all light particles are projected onto the microfluidic channels, improving illumination efficiency, but also prevents light leakage, thus protecting the operator's eyes.

[0015] In terms of installation and use, the microfluidic channels adopt a track-mounted and modular design, making installation and disassembly extremely convenient. A standard enclosure can stack up to five microfluidic channels, saving space and facilitating expansion. Each microfluidic channel is independent, allowing for various experiments to be conducted in series and parallel, significantly improving experimental flexibility and versatility. The equipment is also equipped with a built-in pressure measurement module and temperature sensor, providing multiple safety protections to prevent equipment malfunction or experimental failure due to excessive pressure or temperature.

[0016] Furthermore, all connectors and assemblies are made of corrosion-resistant materials, effectively preventing the reaction liquid from corroding the channel components and ensuring the long-term stable operation of the equipment. In terms of operation, the intelligent touchscreen provides a simple and intuitive interface, allowing users to easily control parameters such as illumination time, intensity, temperature, and flow rate. The real-time monitoring function of the display screen allows users to understand the equipment status and experimental progress at any time. Finally, the modular design and quick-connect fittings make equipment maintenance and component replacement very convenient, reducing maintenance costs and difficulty.

[0017] The device body has a cover plate movably connected to the side wall where the display screen is mounted. A first magnetic attraction component is provided between the inner wall of the cover plate and the device body, and a second magnetic attraction component is provided between the outer wall of the cover plate and the device body. A mounting plate is provided inside the cover plate. A wiping cloth is connected to the side wall of the mounting plate near the display screen, and Velcro is installed between the wiping cloth and the mounting plate. A sliding groove is opened on the side wall of the cover plate, and a sliding rod is installed on the side wall of the mounting plate. The sliding rod extends through the sliding groove to the outside of the cover plate. A movable component is provided on the side of the mounting plate away from the sliding rod. A heat dissipation hole is opened on the side of the device body where the display screen is mounted, and the cover plate can act outside the heat dissipation hole.

[0018] Preferably, a cover is provided on one side of the slide, and the cover is connected to the cover plate by a torsion spring;

[0019] The movable component includes a movable groove and a movable block. The movable groove is formed on the inner wall of the cover plate, and the movable block is fixed to the side wall of the mounting plate away from the slide rod. The movable groove and the movable block are adapted to each other.

[0020] The first magnetic attraction component includes a first magnetic block and a first metal sheet. The first magnetic block is installed on the outer wall of the main body of the device, and the first metal sheet is installed on the inner wall of the cover plate. The first magnetic attraction component keeps the cover plate in a closed state.

[0021] The second magnetic attraction component includes a second magnetic block and a second metal sheet. The second magnetic block is installed on the outer wall of the main body of the device, and the second metal sheet is installed on the outer wall of the cover plate. The second magnetic attraction component keeps the cover plate in an open state.

[0022] Through the above technical solution:

[0023] When the device is in standby mode, the user can close it by rotating the cover. At this time, the first magnetic block interacts with the first metal plate, ensuring the cover remains securely closed. This design not only effectively prevents dust and other foreign objects from entering the heat dissipation holes, but also provides reliable physical protection for the display screen, shielding it from direct impact damage.

[0024] When cleaning the display screen is required, the user can open the cover. By sliding the lever back and forth, the lever moves smoothly within the groove, moving the wiping cloth on the mounting plate to wipe the surface of the display screen, thus achieving cleaning. Because the wiping cloth is connected to the mounting plate with Velcro, the user can easily remove the wiping cloth for cleaning or replacement, ensuring long-lasting cleaning results.

[0025] After cleaning, the cover closes automatically under the action of a torsion spring. This design effectively prevents dust and other foreign objects from entering the cover through the sliding groove. At the same time, during the movement of the mounting plate, the movable block moves along with it in the movable groove, limiting the movement of the mounting plate so that it can only move in a specific direction, avoiding wobbling, and thus ensuring a more stable and thorough wiping process.

[0026] When the device is powered on, the user can open the cover. At this time, the second magnetic block interacts with the second metal plate, ensuring that the cover remains securely open. This design does not affect the normal operation of the display screen and ventilation holes, ensuring that the device maintains good heat dissipation and display performance during operation.

[0027] Compared with the prior art, the beneficial effects of this utility model are:

[0028] (1) This utility model adopts a modular design by setting up components such as a display screen, a lamp source component and a condensate pan, and integrating the light source module with the microfluidic channel. When in use, this design can achieve precise temperature control, efficient heat dissipation and efficient illumination, and can avoid light leakage. Cooling water is introduced into the condensate pan, and the heat generated by the lamp source component is absorbed by the efficient thermal conductivity of the metal material. The fan accelerates the air flow and exhausts the heat around the condensate pan and the lamp source component to the outside of the equipment. The heat dissipation holes on the side wall of the main body of the equipment further help to exhaust the heat and ensure the stable internal temperature of the equipment.

[0029] (2) This utility model provides protection and cleaning functions for the display screen through components such as a cover plate, a cover, and a wiping cloth. When the device is in standby mode, the user rotates the cover plate to close the display screen. The first magnetic block interacts with the first metal sheet to ensure that the cover plate is firmly closed, preventing dust from entering and protecting the display screen from impact. When cleaning, the user opens the cover and uses the sliding rod to drive the wiping cloth on the mounting plate to wipe the surface of the display screen. The wiping cloth is connected to the mounting plate by Velcro, making it easy to remove for cleaning or replacement, ensuring a long-lasting cleaning effect. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the structure of this utility model;

[0031] Figure 2 This is a schematic diagram of the structure of the cover plate of this utility model when it is opened;

[0032] Figure 3 This is a schematic diagram of the closed cover plate structure of this utility model;

[0033] Figure 4 This is a schematic diagram of the structure of the motor of this utility model;

[0034] Figure 5 This is a schematic diagram of the structure of the fan of this utility model;

[0035] Figure 6 This is a schematic diagram of the cooling component of this utility model;

[0036] Figure 7 This is a schematic diagram of the structure of the wiping cloth of this utility model;

[0037] Figure 8 This is a schematic diagram of the slide bar of this utility model;

[0038] Figure 9 This is a schematic diagram of the structure of the second magnetic block of this utility model;

[0039] Figure 10 This is a schematic diagram of the structure of the movable block of this utility model;

[0040] In the diagram: 1. Main body of the equipment; 2. Frame assembly; 3. Display screen; 4. Light source assembly; 5. Channel clamp; 6. Channel assembly; 7. Piping assembly; 8. Cooling assembly; 9. Left side plate; 10. Right side plate; 11. Top cover plate; 12. Cover plate; 13. Mounting plate; 14. Wiping cloth; 15. Velcro; 16. Slide groove; 17. Slide rod; 18. Movable groove; 19. Movable block; 20. Cover; 21. First magnetic block; 22. First metal sheet; 23. Second magnetic block; 24. Second metal sheet; 25. Condensate tray; 26. Fan; 27. Motor; 28. Heat dissipation hole; 29. ​​Control module. Detailed Implementation

[0041] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0042] Please see Figures 1-6 As shown, this utility model provides the following technical solution: a desktop photoreactor, comprising: a main body 1, a frame assembly 2 inside the main body 1, a display screen 3 installed on the side wall of the main body 1, heat dissipation holes 28 opened on the side wall of the main body 1, a lamp source assembly 4 inside the main body 1, a cooling assembly 8 on one side of the lamp source assembly 4, a channel clamp 5 at the bottom of the inner wall of the main body 1, a channel assembly 6 installed above the channel clamp 5, a pipe assembly 7 installed at the bottom of the channel clamp 5, a condensate tray 25 inside the cooling assembly 8, and the condensate tray 25 is installed on the side wall of the lamp source assembly 4, a fan 26 is assembled inside the main body 1, a motor 27 and a control module 29 are provided inside the main body 1, and the motor 27, the control module 29 and the display screen 3 are connected by an electrical connection line to realize signal and power transmission;

[0043] The left side plate 9, the right side plate 10, and the top cover plate 11 are respectively installed on the left side, the right side, and the top of the main body 1.

[0044] Through the above technical solution:

[0045] In use, the user starts the photoreactor device via the display screen 3 on the main body 1. The control module 29 built into the display screen 3 utilizes existing technology to achieve intelligent control. After startup, the motor 27 drives the fan 26 to start working, ensuring that the initial temperature of the lamp source component 4 and the channel component 6 is within a safe range. Simultaneously, the built-in temperature sensor and NTC thermistor monitor the temperature in real time. The control module 29 utilizes existing technology based on a microcontroller-based embedded system: using a high-performance microcontroller (such as the STM32 series, Arduino Mega2560, or ESP32) as the core control unit. These microcontrollers have rich I / O interfaces and powerful processing capabilities, enabling them to process sensor data such as temperature, pressure, and light intensity, and control actuators such as the motor 27, fan 26, and lamp source. Firmware programming is used to control the various components of the device. For example, control logic can be written in C / C++ to implement functions such as temperature regulation, pressure monitoring, and light intensity control. The microcontroller exchanges data with the display screen 3, sensors, actuators, and other modules through communication interfaces such as UART, SPI, and I2C, enabling real-time monitoring and feedback.

[0046] The user can adjust the temperature in real time via display screen 3 to ensure the reaction proceeds at the desired temperature. A temperature sensor and NTC thermistor provide temperature monitoring and overheat protection. When the temperature exceeds the set value, the NTC thermistor limits the current and cuts off the current electronically or mechanically to protect the circuit and equipment.

[0047] Cooling water flows through the condensate pan 25, absorbing the heat generated by the lamp source assembly 4 through the high thermal conductivity of the metal material. The fan 26 accelerates airflow, expelling heat from the condensate pan 25 and the area around the lamp source assembly 4 to the outside of the equipment. The heat dissipation holes 28 on the side wall of the main body 1 further aid in heat dissipation, ensuring a stable internal temperature.

[0048] Light enters the microfluidic channel (fixed by the channel clamp 5) through the channel assembly 6, and through the special flow channel design, the reaction liquid is fully stirred and mixed, increasing the light area and improving the reaction effect. The channel assembly 6 has five layers, the inner three layers are double-sided flow channels, and the outermost two layers are temperature control flow channels. A fan 26 is installed on the side outer wall after the lamp source assembly 4 and the channel assembly 6 are combined.

[0049] The motor 27 regulates the flow rate of the reaction liquid by controlling the pump or valve in the pipeline assembly 7, ensuring that the reaction liquid flows at an appropriate rate in the microfluidic channel.

[0050] The user monitors the experimental process via display screen 3 and adjusts parameters such as illumination time, intensity, temperature, and flow rate as needed. After the experiment is completed, the user turns off the equipment, motor 27 and fan 26 stop working, and the equipment enters standby mode.

[0051] This desktop photoreactor achieves temperature control of the lamp source assembly 4 and the microfluidic channel through the coordinated operation of the condensate pan 25 and the fan 26, ensuring that the chemical reaction proceeds at the optimal temperature. The combined design of its heat dissipation holes 28 and the fan 26 effectively improves the equipment's heat dissipation efficiency, ensuring timely removal of internal heat and preventing overheating from affecting reaction efficiency or damaging the equipment. Simultaneously, the integrated design of the light source module and the microchannel not only ensures that all light particles are projected onto the microfluidic channel, improving illumination efficiency, but also prevents light leakage, thereby protecting the operator's eyes.

[0052] In terms of installation and use, the microfluidic channels adopt a modular design, making installation and disassembly extremely convenient. A standard enclosure can stack up to five microfluidic channels, saving space and facilitating expansion. Each microfluidic channel is independent, allowing for various experiments to be conducted in series and parallel, significantly improving experimental flexibility and versatility. The equipment is also equipped with a built-in pressure measurement module and temperature sensor, providing multiple safety protections to prevent equipment malfunction or experimental failure due to excessive pressure or temperature.

[0053] Furthermore, all connectors and assemblies are made of corrosion-resistant materials, effectively preventing the reaction liquid from corroding the channel components and ensuring the long-term stable operation of the equipment. In terms of operation, the intelligent touchscreen provides a simple and intuitive interface, allowing users to easily control parameters such as illumination time, intensity, temperature, and flow rate. The real-time monitoring function of Display Screen 3 allows users to understand the equipment status and experimental progress at any time. Finally, the modular design and quick-connect fittings make equipment maintenance and component replacement very convenient, reducing maintenance costs and difficulty.

[0054] Please see Figures 1-10 As shown, a cover plate 12 is movably connected to the side wall of the device body 1 where the display screen 3 is installed. A first magnetic attraction component is provided between the inner wall of the cover plate 12 and the device body 1, and a second magnetic attraction component is provided between the outer wall of the cover plate 12 and the device body 1. A mounting plate 13 is provided inside the cover plate 12. A wiping cloth 14 is connected to the side wall of the mounting plate 13 near the display screen 3, and Velcro 15 is installed between the wiping cloth 14 and the mounting plate 13. A sliding groove 16 is opened on the side wall of the cover plate 12, and a sliding rod 17 is installed on the side wall of the mounting plate 13. The sliding rod 17 extends through the sliding groove 16 to the outside of the cover plate 12. A movable component is provided on the side of the mounting plate 13 away from the sliding rod 17. A heat dissipation hole 28 is opened on the side of the device body 1 where the display screen 3 is installed, and the cover plate 12 can act outside the heat dissipation hole 28.

[0055] Furthermore, a cover 20 is provided on one side of the slide 16, and the cover 20 is connected to the cover plate 12 by a torsion spring;

[0056] The movable component includes a movable groove 18 and a movable block 19. The movable groove 18 is formed on the inner wall of the cover plate 12, and the movable block 19 is fixed to the side wall of the mounting plate 13 away from the slide bar 17. The movable groove 18 and the movable block 19 are adapted to each other.

[0057] The first magnetic attraction assembly includes a first magnetic attraction block 21 and a first metal sheet 22. The first magnetic attraction block 21 is installed on the outer wall of the main body 1 of the device, and the first metal sheet 22 is installed on the inner wall of the cover plate 12. The first magnetic attraction assembly keeps the cover plate 12 in a closed state.

[0058] The second magnetic attraction component includes a second magnetic block 23 and a second metal sheet 24. The second magnetic block 23 is installed on the outer wall of the main body 1 of the device, and the second metal sheet 24 is installed on the outer wall of the cover plate 12. The second magnetic attraction component keeps the cover plate 12 in an open state.

[0059] Through the above technical solution:

[0060] When the main body 1 is in standby mode, the user can close it by rotating the cover 12. At this time, the first magnetic block 21 interacts with the first metal sheet 22, ensuring that the cover 12 is securely kept in the closed state. This design not only effectively prevents dust and other foreign objects from entering the heat dissipation hole 28, but also provides reliable physical protection for the display screen 3, protecting it from damage caused by direct external impacts.

[0061] When cleaning of the display screen 3 is required, the user can open the cover 20. By pulling the slider 17 back and forth, the slider 17 moves smoothly within the slide groove 16, causing the wiping cloth 14 on the mounting plate 13 to wipe the surface of the display screen 3, thus achieving cleaning. Since the wiping cloth 14 is connected to the mounting plate 13 by Velcro 15, the user can easily remove the wiping cloth 14 for cleaning or replacement, ensuring long-lasting cleaning results.

[0062] After cleaning, the cover 20 closes automatically under the action of a torsion spring. This design effectively prevents dust and other foreign objects from entering the interior of the cover plate 12 through the slide groove 16. At the same time, during the movement of the mounting plate 13, the movable block 19 moves along with it in the movable groove 18, limiting the movement of the mounting plate 13 so that it can only move in a specific direction, avoiding shaking, and thus ensuring a more stable and thorough wiping process.

[0063] When the device is started, the user can open the cover 12. At this time, the second magnetic block 23 interacts with the second metal plate 24 to ensure that the cover 12 remains securely open. This design does not affect the normal operation of the display screen 3 and the heat dissipation vents 28, ensuring that the device maintains good heat dissipation and display performance during operation.

[0064] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A desktop photoreactor, characterized in that, include: The equipment body (1) has a frame assembly (2) inside, a display screen (3) installed on the side wall of the equipment body (1), heat dissipation holes (28) opened on the side wall of the equipment body (1), a lamp source assembly (4) inside the equipment body (1), a cooling assembly (8) on one side of the lamp source assembly (4), a channel clamp (5) at the bottom of the inner wall of the equipment body (1), a channel assembly (6) installed above the channel clamp (5), a pipe assembly (7) installed at the bottom of the channel clamp (5), a condensate pan (25) inside the cooling assembly (8), and the condensate pan (25) installed on the side wall of the lamp source assembly (4), a fan (26) inside the equipment body (1), and a motor (27) and a control module (29) inside the equipment body (1). The left side plate (9), right side plate (10), and top cover plate (11) are respectively installed on the left side, right side, and top of the main body of the equipment (1).

2. A desktop photoreactor according to claim 1, characterized in that: The device body (1) is equipped with a cover plate (12) movably connected to the side wall of the display screen (3). A first magnetic attraction component is provided between the inner wall of the cover plate (12) and the device body (1). A second magnetic attraction component is provided between the outer wall of the cover plate (12) and the device body (1). An installation plate (13) is provided inside the cover plate (12). A wiping cloth (14) is connected to the side wall of the installation plate (13) near the display screen (3). A Velcro fastener (15) is installed between the wiping cloth (14) and the installation plate (13). A sliding groove (16) is opened on the side wall of the cover plate (12). A sliding rod (17) is installed on the side wall of the installation plate (13). The sliding rod (17) extends through the sliding groove (16) to the outside of the cover plate (12). A movable component is provided on the side of the installation plate (13) away from the sliding rod (17).

3. A desktop photoreactor according to claim 2, characterized in that: A cover (20) is provided on one side of the slide (16), and the cover (20) is connected to the cover plate (12) by a torsion spring.

4. A desktop photoreactor according to claim 3, characterized in that: The movable component includes a movable groove (18) and a movable block (19). The movable groove (18) is formed on the inner wall of the cover plate (12), and the movable block (19) is fixed to the side wall of the mounting plate (13) away from the slide rod (17). The movable groove (18) and the movable block (19) are adapted to each other.

5. A desktop photoreactor according to claim 4, characterized in that: The first magnetic attraction component includes a first magnetic block (21) and a first metal sheet (22). The first magnetic block (21) is installed on the outer wall of the device body (1), and the first metal sheet (22) is installed on the inner wall of the cover plate (12). The first magnetic attraction component keeps the cover plate (12) in a closed state.

6. A desktop photoreactor according to claim 5, characterized in that: The second magnetic suction assembly includes a second magnetic block (23) and a second metal sheet (24). The second magnetic block (23) is installed on the outer wall of the main body (1) of the device, and the second metal sheet (24) is installed on the outer wall of the cover plate (12). The second magnetic suction assembly keeps the cover plate (12) in an open state.