Air temperature circulation system of cell incubator

Abstract

The utility model discloses a cell incubator air temperature circulation system which comprises a cavity, a first fan, a second fan and an air outlet cover, and the first fan is used for forming an upper air inlet and a first side air outlet in the top of the cavity; the second fan is used for forming a lower air inlet and a second side air outlet in the bottom of the cavity; the air outlet cover is arranged on the side wall of the cavity, air outlets are formed in the two sides of the air outlet cover, and the air outlet cover communicates with the first side air outlet and the second side air outlet; according to the utility model, the double-circulation fan is matched with the air outlet cover, so that the flowing of gas in the cavity can be accelerated, the temperature and gas concentration uniformity of the incubator can be effectively improved, and the effect of quickly uniformizing the internal environment of the cavity is achieved.

Description

Technical Field

[0001] This utility model relates to the field of cell culture equipment technology, and in particular to a cell culture chamber air temperature circulation system. Background Technology

[0002] Cell culture is an important technique in biomedical research, with strict requirements for the temperature and humidity of the culture environment. Any fluctuation in temperature and humidity can affect cell growth, differentiation, and metabolism. Therefore, the uniformity of temperature, humidity, and gas concentration must be ensured to be as consistent as possible at any location within the chamber. Current methods typically use a single fan for internal circulation, but this results in insufficient uniformity. Utility Model Content

[0003] The purpose of this utility model is to provide a cell culture chamber air temperature circulation system that solves the problem of gas uniformity within the cell culture chamber.

[0004] This utility model is implemented as follows: it includes a cavity, a first fan, a second fan, and an air outlet hood. The first fan is used to form an upper air inlet and a first side air outlet at the top of the cavity. The second fan is used to form a lower air inlet and a second side air outlet at the bottom of the cavity. The air outlet hood is disposed on the side wall of the cavity and has air outlets on both sides. The air outlet hood is connected to the first side air outlet and the second side air outlet.

[0005] When the first and second fans start working, air enters from the upper and lower air inlets and exits from the first and second side air outlets. Since the air outlet hood is set on the side wall of the cavity and connected to the first or second side air outlet, the air enters the air outlet hood after exiting from the first or second side air outlet. The air outlet hood has air outlets on both sides. Through the air guiding effect of the air outlet hood, the air is discharged along the side wall of the cavity. Compared with the function of a single fan, this utility model uses a dual-circulation fan in conjunction with the air outlet hood, which can accelerate the flow of gas inside the cavity, effectively improve the temperature and gas concentration uniformity of the incubator, and play a role in quickly and uniformly equipping the internal environment of the cavity.

[0006] A further technical solution of this utility model is: the second fan is located close to and connected to the air outlet hood, while the first fan is located away from the air outlet hood. When the second fan is running, air enters from the bottom of the second fan and then exits through the air outlet hood from the second side air outlet. The first fan is located close to the air outlet hood while the second fan is located away from the air outlet hood, so that the air coming out of the air outlet hood can be quickly drawn away by the first fan, thereby accelerating the uniformity of the environment inside the cavity.

[0007] A further technical solution of this utility model is that the second fan is placed on the side wall of the cavity. This prevents materials or water droplets inside the incubator from entering the second fan, thus ensuring the lifespan of the second fan.

[0008] A further technical solution of this utility model is: the distance between the air outlets on both sides of the air outlet hood decreases sequentially from top to bottom. Since the air outlet hood is connected to the second side air outlet of the second fan, the air flows from the bottom to the top of the air outlet hood. The air volume is greater closer to the lower air inlet of the air outlet hood. In order to ensure the gas circulation speed in the lower half of the cavity, the distance between the air outlets closer to the lower air outlet hood is smaller.

[0009] A further technical solution of this utility model is: a filter is provided on the second fan. During long-term use, some impurities may accumulate at the bottom of the cavity. A filter at the lower air inlet of the second fan ensures the cleanliness of the gas circulating within the cavity.

[0010] A further technical solution of this utility model is: a shelf is provided inside the cavity, and a shelf plate is provided between the shelf pieces, with ventilation holes provided on the shelf plate. Both the shelf and the shelf plate with ventilation holes allow air to flow smoothly through the cavity, ensuring a uniform environment within the cavity.

[0011] A further technical solution of this utility model is: a water tank is provided at the bottom of the cavity.

[0012] The beneficial effects of this utility model are as follows: When the first and second fans start working, air enters from the upper and lower air inlets and then exits from the first and second side air outlets. Since the air outlet hood is set on the side wall of the cavity and connected to the first or second side air outlet, the air enters the air outlet hood after exiting from the first or second side air outlet. The air outlet hood has air outlets on both sides. Through the air guiding effect of the air outlet hood, the air is discharged along the side wall of the cavity. Compared with the function of a single fan, this utility model uses a dual-circulation fan in conjunction with the air outlet hood, which can accelerate the flow of gas inside the cavity, effectively improve the temperature and gas concentration uniformity of the incubator, and play a role in quickly and uniformly equipping the internal environment of the cavity. Attached Figure Description

[0013] Figure 1 This is a front structural diagram of the air circulation system of a cell culture chamber in the open state provided by this utility model.

[0014] Figure 2 This utility model provides Figure 1 A three-dimensional image;

[0015] Figure 3 This is a frontal schematic diagram of the gas flow direction inside the air circulation system of a cell culture chamber provided by this utility model;

[0016] Figure 4 This is a side view of the gas flow direction inside the air circulation system of a cell culture chamber provided by this utility model;

[0017] Figure 5 This is a schematic diagram of the connection structure between the connecting cover and the filter provided by this utility model;

[0018] Figure 6 This is a schematic diagram of the connection structure between the shelf and the shelf board provided by this utility model.

[0019] Reference numerals: 1. Cavity, 2. First fan, 3. Second fan, 4. Air outlet hood, 51. Connecting cover, 52. Filter, 61. Shelf, 62. Shelf board, 7. Water tank, 8. Inner door, 9. Outer door, 11. Upper air inlet, 12. First side air outlet, 13. Lower air inlet, 14. Second side air outlet. Detailed Implementation

[0020] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model.

[0021] It should be noted that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of this invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this invention, should still fall within the scope of the disclosed technical content. Furthermore, the terms "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0022] Example 1:

[0023] Figure 1-6 A cell culture chamber air temperature circulation system is shown, including a cavity 1, a first fan 2, a second fan 3, and an air outlet hood 4. The first fan 2 is used to form an upper air inlet 11 and a first side air outlet 12 at the top of the cavity 1; the second fan 3 is used to form a lower air inlet 13 and a second side air outlet 14 at the bottom of the cavity 1; the air outlet hood 4 is disposed on the side wall of the cavity 1 and has air outlets on both sides, and the air outlet hood 4 is connected to the first side air outlet 12 and the second side air outlet 14.

[0024] When the first and second fans start working, air enters from the upper and lower air inlets and exits from the first and second side air outlets. Since the air outlet hood is set on the side wall of the cavity and connected to the first or second side air outlet, the air enters the air outlet hood after exiting from the first or second side air outlet. The air outlet hood has air outlets on both sides. Through the air guiding effect of the air outlet hood, the air is discharged along the side wall of the cavity. Compared with the function of a single fan, this utility model uses a dual-circulation fan in conjunction with the air outlet hood, which can accelerate the flow of gas inside the cavity, effectively improve the temperature and gas concentration uniformity of the incubator, and play a role in quickly and uniformly equipping the internal environment of the cavity.

[0025] In this embodiment, the second fan 3 is positioned close to and connected to the air outlet hood 4, while the first fan 2 is positioned away from the air outlet hood 4. When the second fan is running, air enters from the bottom of the second fan and then exits through the air outlet hood from the second side air outlet. The first fan is positioned close to the air outlet hood while the second fan is positioned away from the air outlet hood, so that the air coming out of the air outlet hood can be quickly drawn away by the first fan, thus accelerating the uniformity of the environment inside the cavity.

[0026] In this embodiment, the second fan 3 is placed on the side wall of the cavity 1. This prevents materials or water droplets inside the incubator from entering the second fan, thus ensuring the lifespan of the second fan.

[0027] In this embodiment, the spacing between the air outlets on both sides of the air outlet hood 4 decreases sequentially from top to bottom. Since the air outlet hood is connected to the second side air outlet of the second fan, the air flows from the bottom of the air outlet hood to the top. The air volume is greater closer to the lower air inlet of the air outlet hood. In order to ensure the gas circulation speed in the lower half of the cavity, the spacing between the air outlets closer to the lower air outlet hood is smaller.

[0028] In this embodiment, the second fan 3 is equipped with a filter 52. During long-term use, some impurities may accumulate at the bottom of the cavity. The filter at the lower air inlet of the second fan ensures the cleanliness of the gas circulating in the cavity.

[0029] In this embodiment, the external air inlet of the incubator is equipped with a 0.22μm butterfly filter, and the filter on the second fan inside the cavity is a high-efficiency particulate air (HEPA) filter. The HEPA filter inside the cavity filters the entire air in the incubator every 60 seconds, ensuring that the air quality reaches ISO Class 5 to Class 100 cleanroom quality within 5 minutes after the door is opened for 30 seconds, thereby achieving continuous protection against suspended pollutants.

[0030] In this embodiment, the air inlet of the second fan 3 is provided with a connecting cover 51, and the filter 52 is placed inside the connecting cover 51 and detachably connected to the connecting cover 51; the filter 52 can be removed from the bottom of the connecting cover 51, which is convenient and quick.

[0031] In this embodiment, the filter is quickly installed by means of a connecting cover and a connecting shroud snap-fit, and then fixed to the air outlet shroud after it is properly installed; when it is necessary to replace the filter, the connecting cover can be replaced.

[0032] In this embodiment, the cavity 1 is provided with a shelf 61, and a shelf 62 is provided between the shelves 61. The shelf 62 is provided with ventilation holes. Both the shelf and the shelf with ventilation holes allow air to pass smoothly through the cavity, ensuring the uniformity of the environment inside the cavity.

[0033] In this embodiment, the shelf includes four rods. The rods on both sides are connected by inwardly bent connecting rods, and the connecting rods on both sides are connected by the shelf. The rods on the rear side are connected by crossbars. The shelf is installed from the front rods, which is convenient and quick.

[0034] In this embodiment, the bottom of the shelf is an inward-curving rod.

[0035] In this embodiment, the shelf is assembled using a snap-fit ​​method, which is convenient, secure, and lightweight; the shelf panel is made of perforated sheet metal bent into shape, which is convenient for installation.

[0036] In this embodiment, a water tank 7 is provided at the bottom of the cavity 1.

[0037] In this embodiment, the cavity 1 is provided with an inner door 8 and an outer door 9 on the front. The first fan and the second fan are linked with the door safety switch. When the door is opened, the fan stops; when the door is closed, the fan automatically resets and starts. A HEPA filter is provided at the air inlet of the second fan so that the circulating gas is filtered to achieve a Class 100 air quality.

[0038] In this embodiment, the wind direction after passing through the first fan and the second fan is as follows: Figure 3-4 As shown; the dashed arrows indicate the airflow direction before and after passing the second fan, and the solid arrows indicate the airflow direction before and after passing the first fan.

[0039] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements 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 cell culture incubator air temperature circulation system, characterized in that: The device includes a cavity (1), a first fan (2), a second fan (3), and an air outlet hood (4). The first fan (2) is used to form an upper air inlet (11) and a first side air outlet (12) at the top of the cavity (1). The second fan (3) is used to form a lower air inlet (13) and a second side air outlet (14) at the bottom of the cavity (1). The air outlet hood (4) is located on the side wall of the cavity (1) and has air outlets on both sides. The air outlet hood (4) is connected to the first side air outlet (12) and the second side air outlet (14).

2. The air circulation system for a cell culture chamber according to claim 1, characterized in that, The second fan (3) is located close to the air outlet hood (4) and is connected to the air outlet hood (4), while the first fan (2) is located away from the air outlet hood (4).

3. The cell culture chamber air temperature circulation system according to claim 2, characterized in that, The second fan (3) is placed on the side wall of the cavity (1).

4. The air circulation system for a cell culture chamber according to claim 2, characterized in that, The distance between the air outlets on both sides of the air outlet cover (4) decreases from top to bottom.

5. A cell culture incubator air temperature circulation system according to any one of claims 1-4, characterized in that, The second fan (3) is equipped with a filter (52).

6. The air circulation system for a cell culture chamber according to claim 1, characterized in that, The cavity (1) is provided with a shelf (61), and a shelf (62) is provided between the shelves (61). The shelf (62) is provided with ventilation holes.

7. The air circulation system for a cell culture chamber according to claim 1, characterized in that, The bottom of the cavity (1) is provided with a water tank (7).

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