A stem cell cryopreservation cooling device
By integrating a circulation system of humidity sensor, dehumidifier and humidifier, combined with refrigeration unit and rotating mechanism, the problem of complex structure of traditional stem cell cryopreservation devices is solved, and low-cost and high-efficiency stem cell cryopreservation is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEXINCEL (SUZHOU) CELL BIOTECHNOLOGY CO LTD
- Filing Date
- 2025-07-07
- Publication Date
- 2026-06-19
AI Technical Summary
Traditional stem cell cryopreservation cooling devices have complex structures due to the separate dehumidification and humidification systems, which increases manufacturing and maintenance costs.
It employs an integrated humidity sensor, dehumidifier, and humidifier, achieving humidity circulation control through the same water storage device and water supply line. Combined with a refrigeration unit and temperature sensor, it precisely adjusts the temperature, uses a rotating mechanism for uniform cooling, and maintains fresh air through a ventilation system.
The device structure was simplified, manufacturing and maintenance costs were reduced, and cryopreservation effectiveness was improved, ensuring that stem cells maintained their biological characteristics and functions during cryopreservation.
Smart Images
Figure CN224368893U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of stem cell cryopreservation technology, and in particular to a stem cell cryopreservation cooling device. Background Technology
[0002] Cryopreservation cooling devices are used to preserve biological samples for a long time in a low-temperature environment. The working principle is to gradually lower the temperature of the sample so that the water in the sample forms a vitrified state, thereby avoiding the formation of ice crystals that may damage the cell structure of the biological sample and thus maintaining the activity and integrity of the biological sample.
[0003] As a type of cell with self-renewal and multi-directional differentiation potential, stem cell cryopreservation and cooling devices are specifically designed for the characteristics of stem cells. They aim to precisely control the cooling process to ensure that stem cells can maintain their biological characteristics and functions to the greatest extent during low-temperature preservation. Through the refrigeration system and temperature control mechanism, a smooth transition of stem cell samples from room temperature to ultra-low temperature environment is achieved, which is a device to ensure the long-term effective preservation of stem cells.
[0004] Traditional cryopreservation cooling devices experience changes in internal humidity during the cooling process, leading to cell dehydration and water condensation. Changes in gas composition can also trigger oxidative stress damage. Existing technologies use humidity sensors to control dehumidification and humidification systems to maintain suitable humidity levels within the device. However, in practical applications, because the dehumidification and humidification systems are independent of each other, each system requires its own water storage device and water supply line, complicating the internal structure and increasing manufacturing and maintenance costs. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a stem cell cryopreservation cooling device, which aims to improve the problem in the prior art where each system needs to be equipped with an independent water storage device and water supply line, which increases manufacturing and maintenance costs.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a stem cell cryopreservation and cooling device, comprising a shell, a circulation mechanism disposed inside the shell, a humidity sensor fixedly connected to the rear side of the inner wall of the shell, a temperature regulating mechanism disposed at the bottom of the shell for cooling immune cells, a ventilation mechanism disposed at the top of the shell for ventilation inside the device, a water volume regulating mechanism disposed on both the upper and lower sides of the circulation mechanism, and a rotating mechanism disposed inside the shell for storing immune cell samples;
[0007] The circulation mechanism includes a dehumidifier, the rear of which is fixedly connected to the rear left end of the inner wall of the outer casing. A drain pipe is fixedly connected to the rear of the dehumidifier, and a water collection tank is fixedly connected to the bottom end of the drain pipe. A water guide pipe is fixedly connected to the top right side of the water collection tank. A filter sterilizer is fixedly connected to the bottom of both the water guide pipe and the drain pipe. A water pump is fixedly connected to the middle of the water guide pipe, and a humidifier is fixedly connected to the front end of the water guide pipe. The rear of the humidifier is fixedly connected to the rear right end of the inner wall of the outer casing, and a sealed access door is rotatably connected to the front of the outer casing.
[0008] As a further description of the above technical solution:
[0009] The rotating mechanism includes a turntable one, the outer wall of which is rotatably connected to the top of the outer shell, a rotating shaft fixedly connected to the inner wall of the turntable one, a turntable two fixedly connected to the top and bottom of the rotating shaft, the bottom of the turntable two being rotatably connected to the bottom side of the inner wall of the outer shell, a plurality of placement disks being fixedly connected at equal intervals to the outer wall of the rotating shaft, a plurality of guide holes being opened around the perimeter of the plurality of placement disks, and a driving component being provided on the top of the turntable one.
[0010] As a further description of the above technical solution:
[0011] The temperature regulation mechanism includes a refrigeration unit, the top of which is fixedly connected to the bottom of the outer casing. Refrigeration pipe assemblies are fixedly connected to the left and right sides of the top of the refrigeration unit, and multiple temperature sensors are fixedly connected to the top four sides of the inner wall of the outer casing.
[0012] As a further description of the above technical solution:
[0013] The ventilation mechanism includes a filter tube, the bottom end of which is fixedly connected to the top right side of the housing, a ventilation pipe is fixedly connected to the top of the filter tube, and a ventilation valve is fixedly connected to the middle of the ventilation pipe.
[0014] As a further description of the above technical solution:
[0015] The water volume regulating mechanism includes a water inlet pipe, the bottom end of which is fixedly connected to the top of the water collection tank, a water inlet valve fixedly connected to the middle of the water inlet pipe, and a second drain pipe fixedly connected to the bottom of the water collection tank, with a drain valve fixedly connected to the middle of the second drain pipe.
[0016] As a further description of the above technical solution:
[0017] The drive assembly includes a worm gear, the bottom of which is fixedly connected to the top of a rotating shaft. A servo motor is fixedly connected to the top left side of the housing. A worm is fixedly connected to the output end of the servo motor. The worm meshes with the worm gear. Fixed blocks are rotatably connected to the front and rear ends of the worm. The bottoms of the two fixed blocks are fixedly connected to the top of the housing.
[0018] As a further description of the above technical solution:
[0019] A sealing groove is provided on the front side of the outer shell, and a sealing gasket is fixedly connected to the left side of the sealed access door. The outer wall of the sealing gasket is in contact with the inner wall of the sealing groove.
[0020] As a further description of the above technical solution:
[0021] Multiple culture tanks are provided around the top of each of the multiple placement trays, and buffer pads are fixedly connected to the inner walls of each of the multiple culture tanks.
[0022] This utility model has the following beneficial effects:
[0023] 1. In this utility model, a humidity sensor monitors humidity. When humidity is high, the dehumidifier works, collects water vapor and discharges it into a water collection tank. After filtration and disinfection, the water pump sends water from the water collection tank to the humidifier when humidity is low. The water is then filtered again and humidified, realizing a dehumidification and humidification cycle. The refrigeration unit is installed at the bottom of the casing for cooling. The temperature sensor provides feedback to regulate the cooling intensity. Fresh air is filtered through a filter tube and enters through a ventilation pipe. The ventilation valve adjusts the ventilation volume. The water volume adjustment mechanism controls the water collection tank for replenishment and drainage, ensuring the circulation mechanism, simplifying the structure and reducing costs.
[0024] 2. In this utility model, the servo motor is powered on and drives the worm gear to rotate. The worm gear is supported by a fixed block to ensure stability and meshes with the worm wheel, driving the worm wheel to rotate, which in turn drives the rotating shaft to rotate. The turntables connected to the upper and lower parts of the rotating shaft are rotatably connected to the corresponding parts of the outer shell to provide support for the rotating shaft. The placement tray fixed on the outer wall of the rotating shaft rotates accordingly to place the stem cell sample, so that the sample is cooled evenly. The guide holes around the placement tray help the cold air to circulate, ensuring a consistent cryopreservation environment and improving the cryopreservation effect. Attached Figure Description
[0025] Figure 1 This is a perspective view of a stem cell cryopreservation and cooling device proposed in this utility model;
[0026] Figure 2 This is a front view of a stem cell cryopreservation cooling device proposed in this utility model;
[0027] Figure 3 This is a rear view of a stem cell cryopreservation and cooling device proposed in this utility model;
[0028] Figure 4This is a schematic diagram of the sealing gasket structure of a stem cell cryopreservation cooling device proposed in this utility model;
[0029] Figure 5 This is a schematic diagram of the rotating mechanism of a stem cell cryopreservation cooling device proposed in this utility model;
[0030] Figure 6 This is a schematic diagram of the temperature regulation mechanism of a stem cell cryopreservation cooling device proposed in this utility model;
[0031] Figure 7 This is a schematic diagram of the circulation mechanism of a stem cell cryopreservation and cooling device proposed in this utility model.
[0032] Legend:
[0033] 1. Outer casing; 2. Circulation mechanism; 201. Dehumidifier; 202. Drain pipe one; 203. Filter sterilizer; 204. Water collection tank; 205. Water guide pipe; 206. Humidifier; 207. Water pump; 3. Rotation mechanism; 301. Turntable one; 302. Rotating shaft; 303. Turntable two; 304. Placement tray; 305. Guide hole; 306. Drive assembly; 3061. Worm gear; 3062. Servo motor; 3063. Worm; 3064. 4. Fixed block; 5. Temperature regulation mechanism; 6. Refrigeration unit; 7. Refrigeration pipe assembly; 8. Temperature sensor; 9. Ventilation mechanism; 10. Filter pipe; 11. Ventilation pipe; 12. Ventilation valve; 13. Water volume regulation mechanism; 14. Water filling pipe; 15. Water filling valve; 16. Drain pipe II; 17. Drain valve; 18. Humidity sensor; 19. Sealed access door; 20. Sealing groove; 10. Sealing gasket; 11. Culture tank; 12. Buffer pad. Detailed Implementation
[0034] 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.
[0035] Reference Figure 2 , Figure 6 and Figure 7This utility model provides an embodiment of a stem cell cryopreservation cooling device, comprising a shell 1, internal components providing installation space and maintaining a stable environment, a circulation mechanism 2 inside the shell 1, which regulates the humidity inside the device and recycles water to create a suitable humidity environment for stem cell cryopreservation, a humidity sensor 7 fixedly connected to the rear inner wall of the shell 1, which monitors the humidity inside the shell 1 in real time and provides humidity data reference for the operation of the circulation mechanism 2, a temperature regulation mechanism 4 at the bottom of the shell 1, which cools the stem cells through refrigeration to meet the low-temperature environment requirements for stem cell cryopreservation, and a ventilation mechanism 5 at the top of the shell 1 for the device to achieve the desired temperature. The internal and external air exchange ensures fresh air and a suitable oxygen content within the device. The circulation mechanism 2 is equipped with regulating mechanisms 6 on both the upper and lower sides. These mechanisms control the water volume in the collection tank 204, ensuring stable operation of the circulation mechanism 2. A rotating mechanism 3 is located inside the outer shell 1, used to store stem cell samples. Rotation ensures the samples are evenly cooled and subjected to other environmental conditions. The circulation mechanism 2 includes a dehumidifier 201, which activates when the humidity exceeds a set value, collecting and removing excess moisture. The rear of the dehumidifier 201 is fixedly connected to the rear left side of the inner wall of the outer shell 1, providing a stable installation position. A drain pipe 202 is fixedly connected to the rear of the dehumidifier 201. The drain pipe 202 guides the water vapor collected by the dehumidifier 201 to the water collection tank 204. The bottom end of the drain pipe 202 is fixedly connected to the water collection tank 204, which stores the water generated during the dehumidification process. A water guide pipe 205 is fixedly connected to the top right side of the water collection tank 204, which transports the water in the water collection tank 204 to the humidifier 206 for water recycling. A filter sterilizer 203 is fixedly connected to the bottom of both the water guide pipe 205 and the drain pipe 202. The filter sterilizer 203 filters and sterilizes the discharged and drawn-in water to prevent microbial growth and contamination. A water pump 207 is fixedly connected to the middle of the water guide pipe 205, which provides power for the flow of water in the water guide pipe 205, ensuring that water can flow from the water collection tank 202. The water is successfully delivered to the humidifier 206. The front end of the water pipe 205 is fixedly connected to the humidifier 206. When the humidity is lower than the set value, the humidifier 206 converts the water delivered by the water pipe 205 into water vapor, increasing the humidity inside the device. The rear side of the humidifier 206 is fixedly connected to the rear right end of the inner wall of the outer casing 1, providing a stable installation position for the humidifier 206. The front side of the outer casing 1 is rotatably connected to a sealed access door 8, which facilitates the operator's access to stem cell samples while ensuring the airtightness of the internal environment of the device. The temperature regulation mechanism 4 includes a refrigerator 401, which serves as a cooling source and generates cooling capacity when turned on. The top of the refrigerator 401 is fixedly connected to the bottom of the outer casing 1, providing a stable installation foundation for the refrigerator 401.The top left and right sides of the refrigerator 401 are fixedly connected to refrigeration pipe assemblies 402. The refrigeration pipe assemblies 402 transfer the cooling capacity generated by the refrigerator 401 to the internal space of the outer casing 1. Multiple temperature sensors 403 are fixedly connected to the top four sides of the inner wall of the outer casing 1. The temperature sensors 403 monitor the internal temperature of the outer casing 1 in real time and feed the temperature data back to the relevant control system for precise adjustment of the working intensity of the refrigerator 401. The ventilation mechanism 5 includes a filter pipe 501, which performs preliminary filtration of the air entering the device to remove dust and impurities. The bottom end of the filter pipe 501 is fixedly connected to the top right side of the outer casing 1 to provide an installation position for the filter pipe 501. A ventilation pipe 502 is fixedly connected to the top of the filter pipe 501. The ventilation pipe 502 guides the filtered air into the device. The middle part of the ventilation pipe 502 is fixedly connected to the top of the filter pipe 501. A ventilation valve 503 is fixedly connected, which can adjust the ventilation volume to meet different ventilation needs inside the device. The water volume regulating mechanism 6 includes a water inlet pipe 601, which can be connected to an external water source to replenish the water collection tank 204. The bottom end of the water inlet pipe 601 is fixedly connected to the top of the water collection tank 204 to ensure smooth water flow. A water inlet valve 602 is fixedly connected to the middle of the water inlet pipe 601, controlling the opening and closing of the water inlet pipe 601 and the water inlet speed. A second drain pipe 603 is fixedly connected to the bottom of the water collection tank 204 to drain excess water. A drain valve 604 is fixedly connected to the middle of the second drain pipe 603, adjusting the drainage speed and volume of the second drain pipe 603 to ensure an appropriate water level in the water collection tank 204.
[0036] Specifically, when the humidity sensor 7 detects that the humidity is higher than the set value, the dehumidifier 201 in the circulation mechanism 2 starts to work. The dehumidifier 201 is fixed to the rear left end of the inner wall of the outer casing 1. It collects excess water vapor and discharges it to the water collection tank 204 through the drain pipe 202 connected to the rear. The filter sterilizer 203 at the bottom of the drain pipe 202 filters and sterilizes the discharged water to prevent microorganisms from growing and contaminating the system during the drainage process. When the humidity sensor 7 detects that the humidity is lower than the set value, the dehumidifier 201 located in the water guide pipe 20... The water pump 207 in the middle section starts, transporting water from the water collection tank 204 to the humidifier 206 through the water pipe 205. The bottom of the water pipe 205 is also equipped with a filter sterilizer 203 to filter the water again, ensuring that the water entering the humidifier 206 is clean and sterile. The humidifier 206 is fixed to the rear right end of the inner wall of the outer casing 1, converting the input water into water vapor and releasing it into the device, thereby increasing the internal humidity. This achieves the recycling of the dehumidification and humidification systems based on the same water storage device and water supply line. The chiller 401 is installed... Installed at the bottom of the outer casing 1, after startup, the cooling capacity is transferred to the internal space through the cooling pipe assembly 402 connected to the top left and right sides. Multiple temperature sensors 403 around the top of the inner wall of the outer casing 1 monitor the temperature in real time and feed the data back to the relevant control system to precisely adjust the working intensity of the refrigeration unit 401, ensuring that the temperature inside the device meets the cooling requirements for stem cell cryopreservation. Fresh air from outside enters through the filter pipe 501, the bottom end of which is connected to the top right side of the outer casing 1 for preliminary filtration of the air. The air then enters the device through the ventilation pipe 502, and the ventilation valve 503 is located in the middle of the ventilation pipe 502 to adjust the ventilation volume, keeping the internal air fresh and with a suitable oxygen content. The water volume adjustment mechanism 6 controls the replenishment of water to the water collection tank 204 through the water inlet pipe 601 and the water inlet valve 602, and adjusts the drainage of the water collection tank 204 through the drain pipe 603 and the drain valve 604 to maintain a stable water volume in the water collection tank 204, thereby ensuring the stable operation of the circulation mechanism 2. This design simplifies the device structure and effectively reduces manufacturing and maintenance costs.
[0037] Reference Figure 1 , Figure 3 and Figure 5The rotating mechanism 3 includes a turntable 301, which serves as the top rotating component of the rotating mechanism 3. The outer wall of the turntable 301 is rotatably connected to the top of the outer shell 1, allowing the rotating mechanism 3 to rotate with the outer shell 1 as support. A rotating shaft 302 is fixedly connected to the inner wall of the turntable 301. The rotating shaft 302 is used to transmit rotational power and is the key to connecting the various rotating components. A second turntable 303 is fixedly connected to the top and bottom of the rotating shaft 302. The second turntable 303 plays a supporting role in the rotating shaft 302, enhancing the overall stability of the rotating mechanism 3. The bottom of the second turntable 303 is connected to the outer shell. The inner wall bottom side of the rotating shaft 302 is rotatably connected, further stabilizing the position of the rotating shaft 302 and the entire rotating mechanism 3 within the outer casing 1. Multiple placement trays 304 are equidistantly fixed to the outer wall of the rotating shaft 302. The placement trays 304 are used to place stem cell samples; their equidistant distribution ensures uniform sample distribution during rotation. Multiple guide holes 305 are provided around each of the placement trays 304. These guide holes 305 facilitate smoother circulation of cold air or other environmental factors around the samples during device operation, ensuring a consistent environment for the samples. A drive assembly 306 is located on the top of the rotating disk 301. Component 306 provides the power source for the rotation of the rotating mechanism 3. The drive assembly 306 includes a worm gear 3061, which is an important component for power transmission in the drive assembly 306. The bottom of the worm gear 3061 is fixedly connected to the top of the rotating shaft 302, and is responsible for transmitting the power of the drive assembly 306 to the rotating shaft 302. A servo motor 3062 is fixedly connected to the top left side of the housing 1. The servo motor 3062 serves as the power source for the drive assembly 306 and generates rotational power when energized. A worm gear 3063 is fixedly connected to the output end of the servo motor 3062. The power of the servo motor 3062 is transmitted to the worm gear 3061, and the worm 3063 is meshed with the worm gear 3061. Through this meshing method, the power is effectively transmitted and the speed is adjusted. The front and rear ends of the worm 3063 are rotatably connected to the fixing blocks 3064. The fixing blocks 3064 are used to support the worm 3063 and ensure the stability of the worm 3063 during rotation. The bottom of the two fixing blocks 3064 are fixedly connected to the top of the housing 1, providing a stable installation position for the fixing blocks 3064, thereby ensuring the stable operation of the worm 3063 and the entire drive assembly 306.
[0038] Specifically, the servo motor 3062 is powered on and operates. The servo motor 3062 is fixed to the top left side of the housing 1. Its output end drives the worm gear 3063 connected to it to rotate. The front and rear ends of the worm gear 3063 are supported by a fixing block 3064 fixed to the top of the housing 1 to ensure rotational stability. Since the worm gear 3063 is meshed with the worm wheel 3061, the rotation of the worm gear 3063 drives the worm wheel 3061 to rotate. The bottom of the worm wheel 3061 is fixed to the top of the rotating shaft 302, thereby driving the rotating shaft 302 to rotate. The upper and lower ends of the rotating shaft 302 are respectively connected to turntable 1 301 and turntable 2 303. The outer wall of disc 1 301 is rotatably connected to the top of the outer shell 1, and the bottom of disc 2 303 is rotatably connected to the bottom side of the inner wall of the outer shell 1, providing stable support for the rotating shaft 302. Multiple placement discs 304, which are fixed at equal intervals on the outer wall of the rotating shaft 302, rotate accordingly. The placement discs 304 are used to place stem cell samples. During the rotation, each sample can pass through different areas inside the device evenly, avoiding uneven cooling caused by fixed positions. At the same time, the guide holes 305 opened around the placement discs 304 help the cold air to circulate more smoothly around the samples, further ensuring the consistency of the sample cryopreservation environment and improving the cryopreservation effect.
[0039] Reference Figure 4 and Figure 5 The front side of the outer shell 1 is provided with a sealing groove 9, which provides an installation position for the sealing gasket 10 and helps to enhance the sealing performance of the device. The sealing gasket 10 is fixedly connected to the left side of the sealed access door 8. When the sealed access door 8 is closed, the sealing gasket 10 fits tightly with the sealing groove 9 to prevent external air, dust and microorganisms from entering the device and maintain a stable cryopreservation environment inside the device. Multiple culture tanks 11 are provided around the top of the multiple placement trays 304. The culture tanks 11 provide specific placement space for stem cell samples, which facilitates the orderly storage of samples. The inner walls of the multiple culture tanks 11 are fixedly connected with buffer pads 12. The buffer pads 12 play a buffering role when placing and moving stem cell samples to avoid damage to the samples due to collision and protect the integrity of the stem cell samples.
[0040] Specifically, when the sealed access door 8 is closed, the sealing pad 10 fits tightly with the sealing groove 9 to prevent external air, dust and microorganisms from entering the device and maintain a stable cryopreservation environment inside the device. The culture groove 11 provides a specific placement space for stem cell samples, which facilitates the orderly storage of samples. The buffer pad 12 plays a buffering role when placing and moving stem cell samples to avoid damage to the samples due to collision.
[0041] Working principle: When the humidity sensor 7 detects that the humidity is higher than the set value, the dehumidifier 201 in the circulation mechanism 2 starts to work. The dehumidifier 201 is fixed to the rear left end of the inner wall of the outer casing 1. It collects excess water vapor and discharges it to the water collection tank 204 through the drain pipe 202 connected to the rear. The filter sterilizer 203 at the bottom of the drain pipe 202 filters and sterilizes the discharged water to prevent microorganisms from growing and contaminating the system during the drainage process. When the humidity sensor 7 detects that the humidity is lower than the set value, the dehumidifier 201 located in the water guide pipe 2... The water pump 207 in the middle of unit 05 starts, transporting water from the water collection tank 204 to the humidifier 206 through the water pipe 205. The bottom of the water pipe 205 is also equipped with a filter sterilizer 203 to filter the water again, ensuring that the water entering the humidifier 206 is clean and sterile. The humidifier 206 is fixed to the rear right end of the inner wall of the outer casing 1, converting the input water into water vapor and releasing it into the device, thereby increasing the internal humidity. This achieves the recycling of the dehumidification and humidification systems based on the same water storage device and water supply line. (Refrigeration unit 401) Installed at the bottom of the outer casing 1, after startup, the cooling capacity is transferred to the internal space through the cooling pipe group 402 connected to the top left and right sides. Multiple temperature sensors 403 around the top of the inner wall of the outer casing 1 monitor the temperature in real time and feed the data back to the relevant control system to precisely adjust the working intensity of the refrigeration unit 401 to ensure that the temperature inside the device meets the requirements for stem cell cryopreservation cooling. Fresh air from outside enters through the filter pipe 501, the bottom end of which is connected to the top right side of the outer casing 1 for preliminary filtration of the air. The air enters the device through the ventilation pipe 502. The ventilation valve 503 is located in the middle of the ventilation pipe 502 and can adjust the ventilation volume to keep the internal air fresh and with a suitable oxygen content. The water volume adjustment mechanism 6 controls the replenishment of water to the water collection tank 204 through the water filling pipe 601 and the water filling valve 602, and adjusts the drainage of the water collection tank 204 through the drain pipe 603 and the drain valve 604 to maintain a stable water volume in the water collection tank 204, thereby ensuring the stable operation of the circulation mechanism 2. This design simplifies the device structure and effectively reduces manufacturing and maintenance costs.
[0042] Furthermore, when the stem cell cryopreservation cooling device is activated, the servo motor 3062 is powered on and operates. The servo motor 3062 is fixed to the top left side of the outer casing 1, and its output end drives the worm gear 3063 connected to it to rotate. The front and rear ends of the worm gear 3063 are supported by the fixing block 3064 fixed to the top of the outer casing 1 to ensure rotational stability. Since the worm gear 3063 is meshed with the worm wheel 3061, the rotation of the worm gear 3063 drives the worm wheel 3061 to rotate. The bottom of the worm wheel 3061 is fixed to the top of the rotating shaft 302, thereby driving the rotating shaft 302 to rotate. The upper and lower ends of the rotating shaft 302 are respectively connected to the turntable 301 and the turntable. 303. The outer wall of turntable 301 is rotatably connected to the top of the outer shell 1, and the bottom of turntable 303 is rotatably connected to the bottom side of the inner wall of the outer shell 1, providing stable support for the rotating shaft 302. Multiple placement trays 304, which are fixed at equal intervals on the outer wall of the rotating shaft 302, rotate accordingly. The placement trays 304 are used to place stem cell samples. During the rotation, each sample can pass through different areas inside the device evenly, avoiding uneven cooling caused by fixed positions. At the same time, the guide holes 305 opened around the placement trays 304 help the cold air to circulate more smoothly around the samples, further ensuring the consistency of the sample cryopreservation environment and improving the cryopreservation effect.
[0043] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A stem cell cryopreservation cooling device, comprising a shell (1), characterized in that: The outer shell (1) is provided with a circulation mechanism (2) inside. A humidity sensor (7) is fixedly connected to the rear side of the inner wall of the outer shell (1). A temperature regulation mechanism (4) is provided at the bottom of the outer shell (1). The temperature regulation mechanism (4) is used to cool down the immune cells. A ventilation mechanism (5) is provided at the top of the outer shell (1). The ventilation mechanism (5) is used to ventilate the inside of the device. A water volume regulation mechanism (6) is provided on both the upper and lower sides of the circulation mechanism (2). A rotation mechanism (3) is provided inside the outer shell (1). The rotation mechanism (3) is used to store immune cell samples. The circulation mechanism (2) includes a dehumidifier (201), the rear side of which is fixedly connected to the left rear side of the inner wall of the outer shell (1). A drain pipe (202) is fixedly connected to the rear side of the dehumidifier (201). A water collection tank (204) is fixedly connected to the bottom end of the drain pipe (202). A water guide pipe (205) is fixedly connected to the top right side of the water collection tank (204). A filter sterilizer (203) is fixedly connected to the bottom of both the water guide pipe (205) and the drain pipe (202). A water pump (207) is fixedly connected to the middle of the water guide pipe (205). A humidifier (206) is fixedly connected to the front end of the water guide pipe (205). The rear side of the humidifier (206) is fixedly connected to the right rear side of the inner wall of the outer shell (1). A sealed access door (8) is rotatably connected to the front side of the outer shell (1).
2. The stem cell cryopreservation cooling device according to claim 1, characterized in that: The rotating mechanism (3) includes a turntable (301), the outer wall of which is rotatably connected to the top of the outer shell (1), a rotating shaft (302) is fixedly connected to the inner wall of the turntable (301), a turntable (303) is fixedly connected to the top and bottom of the rotating shaft (302), the bottom of the turntable (303) is rotatably connected to the bottom side of the inner wall of the outer shell (1), a plurality of placement plates (304) are fixedly connected at equal intervals to the outer wall of the rotating shaft (302), a plurality of guide holes (305) are opened around the plurality of placement plates (304), and a driving assembly (306) is provided on the top of the turntable (301).
3. The stem cell cryopreservation cooling device according to claim 1, characterized in that: The temperature regulating mechanism (4) includes a refrigerator (401), the top of which is fixedly connected to the bottom of the outer shell (1), and a refrigeration pipe assembly (402) is fixedly connected to the left and right sides of the top of the refrigerator (401). Multiple temperature sensors (403) are fixedly connected to the top of the inner wall of the outer shell (1).
4. The stem cell cryopreservation cooling device according to claim 1, characterized in that: The ventilation mechanism (5) includes a filter pipe (501), the bottom end of which is fixedly connected to the top right side of the outer casing (1), and a ventilation pipe (502) is fixedly connected to the top of the filter pipe (501). A ventilation valve (503) is fixedly connected to the middle of the ventilation pipe (502).
5. The stem cell cryopreservation cooling device according to claim 1, characterized in that: The water volume regulating mechanism (6) includes a water inlet pipe (601), the bottom end of which is fixedly connected to the top of the water collection tank (204), a water inlet valve (602) is fixedly connected to the middle of the water inlet pipe (601), a drain pipe (603) is fixedly connected to the bottom of the water collection tank (204), and a drain valve (604) is fixedly connected to the middle of the drain pipe (603).
6. The stem cell cryopreservation cooling device according to claim 2, characterized in that: The drive assembly (306) includes a worm gear (3061), the bottom of which is fixedly connected to the top of the rotating shaft (302). A servo motor (3062) is fixedly connected to the top left side of the housing (1). A worm (3063) is fixedly connected to the output end of the servo motor (3062). The worm (3063) meshes with the worm gear (3061). Fixed blocks (3064) are rotatably connected to the front and rear ends of the worm (3063). The bottoms of the two fixed blocks (3064) are fixedly connected to the top of the housing (1).
7. The stem cell cryopreservation cooling device according to claim 1, characterized in that: A sealing groove (9) is provided on the front side of the outer shell (1), and a sealing gasket (10) is fixedly connected to the left side of the sealed access door (8). The outer wall of the sealing gasket (10) is in contact with the inner wall of the sealing groove (9).
8. The stem cell cryopreservation cooling device according to claim 2, characterized in that: Multiple culture tanks (11) are provided around the top of the multiple placement trays (304), and buffer pads (12) are fixedly connected to the inner walls of the multiple culture tanks (11).