Plant tissue culture temperature adjusting system

By designing a plant tissue culture temperature regulation system, the problems of inaccurate temperature control and high noise were solved, achieving precise temperature regulation and uniform distribution, thus improving culture efficiency and success rate.

CN223786831UActive Publication Date: 2026-01-13HEFEI LIUCHI TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202520110704.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-17
Publication Date
2026-01-13
Estimated Expiration
2035-01-17

AI Technical Summary

Technical Problem

Traditional temperature control systems in plant tissue culture suffer from problems such as inaccurate temperature control, uneven temperature distribution, and high noise levels, which affect culture efficiency and success rate.

Method used

The system design includes an incubator, partitions, temperature control devices, lifting devices, and moving devices. Combined with a controller, temperature sensor, heating device, cooling device, and water cooling system, the system uses a PID algorithm to achieve precise temperature regulation and uniform distribution while reducing noise.

Benefits of technology

It achieves precise temperature control and uniform distribution, improving culture efficiency and success rate, and is suitable for noise-sensitive laboratory environments.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of plant tissue culture, in particular to a plant tissue culture temperature adjusting system which comprises a cultivation box, partition plates, a temperature adjusting device, a lifting device and a moving device, a plurality of sets of partition plates are evenly arranged in the cultivation box, and supporting legs are installed at the four corners of the bottom end of the cultivation box. A box door is installed on the front end face of the cultivation box, the moving device is installed on the bottom wall of the cultivation box through the lifting device, the temperature adjusting device is installed in the cultivation box, multiple sets of air outlet heads are arranged on the top wall and the bottom wall of a partition plate, it is ensured that the temperature is evenly distributed in the heating process, and through a water pump and a circulating pipe, the temperature can be adjusted. The circulating efficiency of cooling water is ensured, the cooling effect is improved, the heat exchangers on the two sides are evenly distributed, it is ensured that the temperature is even in the cooling process, and compared with an air cooling system, the water cooling system is low in noise during operation and suitable for the laboratory environment sensitive to noise.
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Description

Technical Field

[0001] This utility model relates to the field of plant tissue culture technology, specifically a plant tissue culture temperature regulation system. Background Technology

[0002] As is well known, plant tissue culture is a technique that uses isolated plant tissues or cells to grow and reproduce on artificial culture media under sterile conditions. This technique has wide applications in plant breeding, genetic improvement, rapid propagation, and germplasm resource preservation. To ensure the success of plant tissue culture, providing a stable and precise temperature environment is crucial.

[0003] Traditional temperature control systems often suffer from problems such as inaccurate temperature control, uneven temperature distribution, and high noise levels. These problems can adversely affect the culture of plant tissues, reducing culture efficiency and success rate. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides a plant tissue culture temperature control system.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a plant tissue culture temperature control system, comprising a culture box, partitions, a temperature control device, a lifting device, and a moving device. Multiple sets of partitions are evenly arranged inside the culture box. Support legs are installed at the four corners of the bottom of the culture box. A door is installed on the front face of the culture box. The moving device is installed on the bottom wall of the culture box via the lifting device. The temperature control device is installed inside the culture box, and includes a controller, a temperature sensor, a heating device, an air outlet, and a cooling device. The controller is installed on the side wall of the door. The temperature sensor is installed on the inner side wall of the culture box. The heating device is installed on the outer side wall of the culture box. The heating device extends to the top wall of the incubator and the bottom wall of the partition, where multiple sets of air outlets are arranged. The cooling device includes a chiller unit, a water pump, an output pipe, a distribution pipe, a heat exchanger, and a circulation pipe. The chiller unit is installed on the back wall of the incubator. An output pipe is installed at the top of the chiller unit, and the water pump is installed at the top of the output pipe. The distribution pipes are installed at both ends of the water pump. The heat exchangers are installed on both the left and right side walls inside the incubator. One end of each heat exchanger penetrates the back wall of the incubator and is connected to one of the two distribution pipes. The circulation pipes are installed at both ends of the lower left and right parts of the chiller unit. The two circulation pipes penetrate the back wall of the incubator and are connected to the other end of the heat exchangers.

[0008] To achieve the temperature rise inside the incubator, this utility model is improved by including a heating device comprising a fan, an air supply pipe, and an air heater. The fan is installed on the outer wall of the incubator, an air inlet pipe is installed at one end of the fan, and the air supply pipe is installed at the other end of the fan. The air supply pipe passes through the air heater and through the inner cavity of the side wall of the incubator, and is connected to multiple sets of air outlets.

[0009] Preferably, the improvement of this utility model is that the heat exchanger is a shell-and-tube heat exchanger.

[0010] Preferably, the present invention is improved in that a filter screen is installed inside the air inlet pipe.

[0011] To adjust the height of the moving device, the present invention includes an improvement in which the lifting device comprises a cylinder and a lifting plate. The cylinder is installed on the bottom wall of the incubator, and the lifting plate is installed on the output end of the cylinder.

[0012] To facilitate moving the incubator to the target location, this utility model is improved by including wheels on the moving device, with the wheels installed at the four corners of the bottom wall of the lifting plate.

[0013] To secure the movable wheel, this invention includes an improvement whereby a brake assembly is installed on the movable wheel, and the brake assembly is adapted to the movable wheel.

[0014] Preferably, in this invention, the movable wheel is a swivel wheel.

[0015] (III) Beneficial Effects

[0016] Compared with the prior art, this utility model provides a plant tissue culture temperature control system, which has the following beneficial effects:

[0017] This plant tissue culture temperature control system, through the coordinated operation of a control system, heating device, and cooling device, along with temperature sensors and controllers, achieves precise temperature regulation and ensures a stable environment. Multiple air outlets on the top and bottom walls of the partitions ensure even distribution of heated air within the incubator. A water pump and circulation pipes ensure efficient cooling water circulation, enhancing the cooling effect. Evenly distributed heat exchangers on both sides ensure uniform temperature during cooling. Compared to air cooling systems, the water cooling system operates with lower noise, making it suitable for noise-sensitive laboratory environments. Precise temperature control provides an optimal environment for plant tissue culture, contributing to improved culture efficiency and success rates. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention from a first angle;

[0019] Figure 2 This is a schematic diagram of the three-dimensional structure inside the incubator of this utility model;

[0020] Figure 3 This is a two-dimensional structural diagram of the present invention from a second angle;

[0021] Figure 4 This is a three-dimensional structural diagram of the present invention from a third angle.

[0022] In the diagram: 1. Incubator; 2. Partition; 3. Support leg; 4. Door; 5. Controller; 6. Temperature sensor; 7. Air outlet; 8. Chiller unit; 9. Water pump; 10. Output pipe; 11. Diverter pipe; 12. Heat exchanger; 13. Circulation pipe; 14. Fan; 15. Air duct; 16. Air heater; 17. Air inlet pipe; 18. Filter screen; 19. Cylinder; 20. Lifting plate; 21. Casters; 22. Brake assembly. Detailed Implementation

[0023] 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.

[0024] Please see Figure 1-4A plant tissue culture temperature control system includes a culture box 1, partitions 2, a temperature control device, a lifting device, and a moving device. Multiple sets of partitions 2 are evenly arranged inside the culture box 1. Support legs 3 are installed at the four corners of the bottom of the culture box 1. A door 4 is installed on the front face of the culture box 1. The moving device is installed on the bottom wall of the culture box 1 via the lifting device. The temperature control device is installed inside the culture box 1. The temperature control device includes a controller 5, a temperature sensor 6, a heating device, an air outlet 7, and a cooling device. The controller 5 is installed on the side wall of the door 4. The temperature sensor 6 is installed on the inner side wall of the culture box 1. The heating device is installed on the outer side wall of the culture box 1. The heating device extends... Multiple sets of air outlets 7 are arranged extending to the top wall of the incubator 1 and the bottom wall of the partition 2. The refrigeration device includes a chiller unit 8, a water pump 9, an output pipe 10, a distribution pipe 11, a heat exchanger 12, and a circulation pipe 13. The chiller unit 8 is installed on the back wall of the incubator 1. The output pipe 10 is installed at the top of the chiller unit 8. The water pump 9 is installed at the top of the output pipe 10. The distribution pipes 11 are installed at both ends of the water pump 9. The heat exchangers 12 are installed on both the left and right side walls inside the incubator 1. One end of each heat exchanger 12 penetrates the back wall of the incubator 1 and is connected to one or more distribution pipes 11. The circulation pipes 13 are installed at both the lower left and right ends of the chiller unit 8. The circulation pipe 13 passes through the back wall of the incubator 1 and connects to the other end of the heat exchanger 12. In this embodiment, during use, the tissue culture bottle is first placed on the partition 2 inside the incubator 1. The temperature sensor 6 installed on the inner side wall of the incubator 1 monitors the temperature inside the chamber in real time and sends the data to the controller 5. The controller 5, installed on the side wall of the chamber door 4, receives the signal from the temperature sensor 6 and judges and controls according to the preset temperature range (e.g., 25℃±1℃). When the temperature sensor 6 detects that the temperature inside the chamber is lower than the set lower limit, the controller 5 starts the heating device. The hot air generated by the heating device is evenly distributed into the chamber through multiple sets of air outlets 7 installed on the top wall of the incubator 1 and the bottom wall of the partition 2, ensuring that the temperature rises evenly. When the temperature inside the incubator 1 is detected to be higher than the set upper limit, the controller 5 starts the refrigeration unit. The chiller unit 8 (which includes a compressor (for compressing the refrigerant, changing it from a low-pressure gas to a high-pressure gas), a condenser (for dissipating heat through the condenser, turning it into a high-pressure liquid), an expansion valve (for reducing the pressure of the high-pressure liquid, turning it into a low-pressure, low-temperature liquid), and an evaporator (for absorbing heat in the evaporator, turning it into a low-pressure gas, completing the refrigeration cycle)) produces chilled water, which is delivered to the water pump 9 through the output pipe 10. The water pump 9 distributes the chilled water to the heat exchangers 12 on both sides through the distribution pipe 11. The heat exchangers 12, installed on the left and right side walls of the incubator 1, are connected to the chiller unit 8 through the circulation pipe 13, carrying away heat from inside the incubator.After absorbing heat, the warm water from the heat exchanger 12 returns to the chiller 8 via the circulation pipe 13 for continued cooling. The controller 5 uses a PID (proportional-integral-derivative) algorithm to precisely adjust the power of the heating and cooling devices based on feedback signals from the temperature sensor 6, ensuring the temperature remains stable within the set range. This stable temperature environment is beneficial for plant cell division and growth, increasing the success rate of plant tissue culture. Multiple sets of air outlets 7 are arranged on the top wall and bottom wall of the partition 2 to ensure uniform temperature distribution during heating. The water pump 9 and circulation pipe 13 ensure efficient cooling water circulation and improve the cooling effect. The heat exchangers 12 on both sides are evenly distributed to ensure uniform temperature during cooling. Compared to air cooling systems, water cooling systems operate with lower noise, making them suitable for noise-sensitive laboratory environments.

[0025] In practical use, to further achieve temperature rise inside the incubator 1, in this embodiment, the heating device includes a fan 14, an air duct 15, and an air heater 16. The fan 14 is installed on the outer wall of the incubator 1. An air inlet pipe 17 is installed at one end of the fan 14, and the air duct 15 is installed at the other end of the fan 14. The air duct 15 passes through the air heater 16 and through the inner cavity of the side wall of the incubator 1, and is connected to multiple sets of air outlets 7. The temperature sensor 6 monitors the temperature inside the chamber in real time and sends the data to the controller 5. The controller 5 receives the signal from the temperature sensor 6 and starts the fan 14. The fan 14 begins to operate. The air inlet duct 17 draws in outside air, and the fan 14 delivers the drawn-in air to the air heater 16 through the air delivery duct 15. The air heater 16 heats the air, raising its temperature. The heated air continues to be delivered through the air delivery duct 15 and is evenly distributed into the incubator 1 through the air outlet 7, ensuring a uniform temperature rise. The power of the fan 14 and the air heater 16 is precisely adjusted according to the feedback signal from the temperature sensor 6 to ensure that the temperature remains stable within the set range. (Silencers are installed in both the air inlet duct 17 and the air delivery duct 15 to reduce airflow noise in the ducts, and soundproof covers are installed around the fan 14 and the air heater 16 to further reduce noise transmission.)

[0026] Preferably, in this embodiment, the heat exchanger 12 is a shell-and-tube heat exchanger 12. The shell-and-tube heat exchanger 12 provides efficient heat exchange through the contact between multiple tubes and air. Cooling water flows inside the tubes, while the air inside the incubator 1 flows outside the tubes, and heat exchange occurs through the tube walls. The design of the shell-and-tube heat exchanger 12 results in a high degree of turbulence of the fluid inside and outside the tubes, which improves the heat transfer coefficient and thus improves the heat exchange efficiency.

[0027] Preferably, in this embodiment, a filter screen 18 is installed inside the air inlet pipe 17. The filter screen 18 can effectively filter dust, fibers and other particulate matter in the air entering the cultivation box 1, preventing these impurities from entering the cultivation box 1 and affecting the growth of plants.

[0028] In actual use, the height of the moving device can be further adjusted. In this embodiment, the lifting device includes a cylinder 19 and a lifting plate 20. The cylinder 19 is installed on the bottom wall of the incubation box 1, and the lifting plate 20 is installed on the output end of the cylinder 19. When the cylinder 19 is activated, the output end of the cylinder 19 drives the lifting plate 20 to descend, which can drive the moving device to contact the ground. The position can be adjusted by the moving device. When it is not necessary to move, the lifting plate 20 can be raised by the cylinder 19 to make the moving device leave the ground.

[0029] In practical use, to further facilitate moving the incubator 1 to the target position, in this embodiment, the moving device includes moving wheels 21. The moving wheels 21 are installed at the four corners of the bottom wall of the lifting plate 20. The moving wheels 21 can drive the incubator 1 to move quickly to the target position.

[0030] In actual use, the movable wheel 21 is further fixed. In this embodiment, a brake assembly 22 is installed on the movable wheel 21. The brake assembly 22 is adapted to the movable wheel 21. The brake assembly 22 can lock the movable wheel 21 so that it will not easily rotate when not in use or when lifting or lowering.

[0031] Preferably, in this embodiment, the movable wheel 21 is a universal wheel, which can rotate freely in any direction, so that the incubator 1 can easily move in multiple directions in a small space and adapt to various laboratory layouts.

[0032] To illustrate the possible application scenarios, technical principles, implementable specific solutions, and achievable objectives and effects of this application in detail, the following description, in conjunction with the listed specific embodiments and accompanying drawings, provides a detailed explanation. The embodiments described herein are merely illustrative of the technical solutions of this application and are therefore intended to limit the scope of protection of this application.

[0033] 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 plant tissue culture temperature control system, comprising a culture box (1), a partition (2), a temperature control device, a lifting device, and a moving device, characterized in that: Multiple sets of partitions (2) are evenly arranged inside the incubator (1). Support legs (3) are installed at the four corners of the bottom of the incubator (1). A door (4) is installed on the front face of the incubator (1). The moving device is installed on the bottom wall of the incubator (1) through the lifting device. The temperature regulating device is installed inside the incubator (1). The temperature regulating device includes a controller (5), a temperature sensor (6), a heating device, an air outlet (7), and a cooling device. The controller (5) is installed on the side wall of the door (4). The temperature sensor (6) is installed on the inner side wall of the incubator (1). The heating device is installed on the outer side wall of the incubator (1). Multiple sets of air outlets (7) are arranged on both the top wall of the incubator (1) and the bottom wall of the partitions (2). The cooling device includes a chiller unit. (8), water pump (9), output pipe (10), diversion pipe (11), heat exchanger (12) and circulation pipe (13), the chiller unit (8) is installed on the back wall of the incubator (1), the output pipe (10) is installed at the top of the chiller unit (8), the water pump (9) is installed at the top of the output pipe (10), the diversion pipe (11) is installed at both ends of the water pump (9), the heat exchanger (12) is installed on both the left and right side walls inside the incubator (1), one end of the two sets of heat exchangers (12) penetrates the back wall of the incubator (1) and is connected to the two sets of diversion pipes (11) respectively, the circulation pipe (13) is installed at both the left and right ends of the lower part of the chiller unit (8), the two sets of circulation pipes (13) penetrate the back wall of the incubator (1) and are connected to the other end of the heat exchanger (12).

2. The plant tissue culture temperature control system according to claim 1, characterized in that: The heating device includes a fan (14), an air duct (15), and an air heater (16). The fan (14) is installed on the outer wall of the incubator (1). An air inlet pipe (17) is installed at one end of the fan (14), and the air duct (15) is installed at the other end of the fan (14). The air duct (15) passes through the air heater (16) and through the inner cavity of the side wall of the incubator (1), and is connected to multiple sets of air outlets (7).

3. The plant tissue culture temperature control system according to claim 2, characterized in that: The heat exchanger (12) is a shell-and-tube heat exchanger (12).

4. The plant tissue culture temperature control system according to claim 3, characterized in that: A filter screen (18) is installed inside the air inlet pipe (17).

5. A plant tissue culture temperature control system according to claim 4, characterized in that: The lifting device includes a cylinder (19) and a lifting plate (20). The cylinder (19) is installed on the bottom wall of the incubator (1), and the lifting plate (20) is installed on the output end of the cylinder (19).

6. A plant tissue culture temperature control system according to claim 5, characterized in that: The moving device includes moving wheels (21), and the moving wheels (21) are installed at the four corners of the bottom wall of the lifting plate (20).

7. A plant tissue culture temperature control system according to claim 6, characterized in that: A brake assembly (22) is installed on the movable wheel (21), and the brake assembly (22) is adapted to the movable wheel (21).

8. A plant tissue culture temperature control system according to claim 7, characterized in that: The movable wheel (21) is a swivel wheel.