Incubator and microorganism culture device provided with the same

Abstract

The application discloses a culture box and a microorganism culture equipment with the culture box, and relates to the technical field of culture boxes. The culture box comprises a box body which is a hollow shell; an inner container which is arranged in the box body and has gaps between the walls of the box body and the walls of the inner container to form ventilation channels for air flow; the inner container is a hollow shell with an unclosed front surface; a plurality of heaters which are symmetrically arranged on the inner wall of the box body; a fan which is arranged at the center of the rear wall of the box body and is used for supplying air into the ventilation channels; and an evaporator which is arranged on the rear wall of the box body and is used for cooling the air in the box body. The culture box and the microorganism culture equipment with the culture box have the advantages that the air is driven by the fan to flow into the ventilation channels, the air is uniformly heated by the heaters which are symmetrically arranged on the inner wall of the box body, or the air is uniformly cooled by the annular or spiral evaporator, and then the air enters the inner container through the ventilation channels, so that the temperature field in the whole box body is uniformly distributed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of biological medicine, more particularly, to a culture box. BACKGROUND

[0002] The culture box is a common experimental equipment in the field of biological medicine, which is used for the culture of biology and microorganism, constant temperature experiment, environmental experiment and other scientific and technological research. The main function of the culture box is to provide an experimental environment with uniform temperature. The uniformity of temperature distribution is an important parameter of the culture box. In order to provide experimental conditions lower than the ambient temperature and experimental conditions higher than the ambient temperature, the culture box needs to have a two-way temperature regulating system with refrigeration and heating.

[0003] An existing culture box adopts an axial flow fan arranged in a ventilation channel to organize the air flow field flowing upwards and downwards, and an evaporator is arranged below the axial flow fan. A plurality of porous plates are arranged at the top and bottom of the working area, so that the air is distributed into the working area at a relatively uniform speed. At this time, the utilization rate of the heat exchange area of the evaporator is high, and the air flow in the working area is uniform. However, due to the asymmetry of the flow field in the culture box, the path lengths of different fluid microgroups are different, and the heat transfer between the wall surface is different, which leads to uneven air temperature distribution.

[0004] Another existing culture box adopts a centrifugal fan, and a cuboid structure evaporator is arranged in the inlet or outlet air duct of the fan. If the evaporator is arranged in the outlet air duct of the fan, only a part of the circulating air flows through the evaporator at the outlet of the fan, and the air temperature is not uniform, which is not conducive to the uniform distribution of the temperature in the working area. If the evaporator is arranged at the inlet of the fan, due to the uneven distribution of the air speed flowing through the evaporator, the utilization rate of the heat exchange area of the evaporator is low. At the same time, due to the very low temperature in the evaporator area, it is not conducive to the uniform distribution of the temperature in the working area. In addition, the working area space is also occupied.

[0005] In summary, how to make the temperature distribution in the culture box uniform is a problem that needs to be solved by the technical personnel in the field at present. SUMMARY

[0006] Therefore, the purpose of the present application is to provide a culture box, the inner wall of the box body of the culture box is provided with uniformly distributed heaters, the heaters heat the air, and the air is uniformly sent into the ventilation channel by the fan, the evaporator cools the air in the box body, the air temperature in the ventilation channel is uniformly diffused, and the air in the ventilation channel enters the inner container, so that the temperature field in the box body is uniformly distributed.

[0007] Another purpose of the present application is to provide a microorganism culture equipment comprising the culture box.

[0008] In order to achieve the above purpose, the present application provides the following technical scheme:

[0009] An incubator, comprising:

[0010] A cabinet, being a hollow shell;

[0011] An inner container, being arranged inside the cabinet, and gaps are formed between each wall of the cabinet and the inner container to form a ventilation channel, the ventilation channel is used for air flow, and the inner container is a hollow shell with an unclosed front surface;

[0012] A plurality of heaters, which are symmetrically distributed on the inner wall of the cabinet;

[0013] A fan, which is arranged at the center of the rear wall inside the cabinet, and is used for air supply to the ventilation channel;

[0014] An evaporator, which is arranged on the rear wall of the cabinet, and is used for cooling the air inside the cabinet.

[0015] Preferably, the cabinet is a rectangular shell with an unclosed front surface, and the cabinet cover is hinged to the front surface of the cabinet.

[0016] Preferably, when the cabinet cover is closed, the inner container is provided with a ventilation area near the edge of the cabinet cover, and a ventilation opening is arranged at the center of the rear wall of the inner container.

[0017] Preferably, the ventilation area near the edge of the cabinet cover is a grating structure ventilation area or a louver ventilation structure.

[0018] Preferably, the evaporator is arranged inside the rear wall of the cabinet, and the evaporator is a ring-shaped member or a spiral structure member.

[0019] Preferably, the thickness of the evaporator is greater than 50% of the distance between the cabinet and the inner container.

[0020] Preferably, the distance between the cabinet and the inner container is less than twice the axial thickness of the fan.

[0021] Preferably, the distance between the center of the rear wall of the inner container and the center of the rear wall of the cabinet is less than the distance between the four sides of the rear wall of the inner container and the four sides of the rear wall of the cabinet, so that the width dimension of the ventilation channel gradually increases from the fan to the four sides.

[0022] Preferably, the evaporator includes a finned tube, and the evaporator uniformly cools the air through the finned tube.

[0023] A microbial culture device, comprising an incubator, and the incubator is any one of the above-mentioned incubators.

[0024] The application provides a culture box, which is characterized in that an inner container is arranged in the hollow box body, a ventilation channel is arranged between the box body and the inner container for air circulation, a fan is arranged at the center of the rear wall of the box body, air is sent to the ventilation channel through the fan, and heaters are symmetrically arranged on the four inner surfaces of the box body where the ventilation channel is located. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only constitute a part of the embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor based on the provided drawings.

[0026] Figure 1 The first angle structure diagram of the culture box provided by the present application;

[0027] Figure 2 The structure diagram of the inside of the box body of the culture box provided by the present application;

[0028] Figure 3 The second angle structure diagram of the culture box provided by the present application;

[0029] Figure 4 The third angle structure diagram of the culture box provided by the present application.

[0030] Figures 1 to 4 In the drawings, the reference signs include:

[0031] 1 is the box body, 2 is the inner container, 3 is the ventilation channel, 4 is the heater, 5 is the fan, 6 is the evaporator, 7 is the box cover, and 8 is the ventilation opening. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments only constitute a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0033] The core of the present application is to provide a culture box, and the temperature field in the culture box is uniformly distributed.

[0034] Another core of the present application is to provide a microbial culture equipment comprising the incubator.

[0035] Please refer to Figures 1 to 4 The incubator provided in the present application comprises: a box body 1, which is a hollow shell; an inner container 2, which is arranged inside the box body 1, and the box body 1 and the inner container 2 each have a gap between the wall surfaces to form a ventilation channel 3 for air flow, and the inner container 2 is a hollow shell with an unclosed front surface; a plurality of heaters 4, which are symmetrically distributed on the inner wall of the box body 1; a fan 5, which is arranged at the center of the rear wall inside the box body 1 and used for supplying air to the ventilation channel 3; and an evaporator 6, which is arranged on the rear wall of the box body 1 and used for cooling the air inside the box body 1.

[0036] Specifically, a hollow shell inner container 2 with an unclosed front surface is arranged inside the hollow box body 1, and the size of the inner container 2 is smaller than that of the box body 1, so that there are symmetrically distributed ventilation channels 3 between the box body 1 and the inner container 2 for air flow, and a fan 5 is arranged at the center of the rear wall inside the box body 1 to uniformly supply air to the ventilation channel 3, and the incubator has two working conditions of heating and refrigeration, and the rear wall of the box body 1 is provided with an evaporator 6 for cooling the air inside the box body 1 in the refrigeration working condition. A plurality of heaters 4 are symmetrically arranged on the upper and lower surfaces inside the box body 1 and the left and right surfaces inside the box body 1, and the air in the ventilation channel 3 is heated by the heaters 4 in the heating working condition.

[0037] Through the action of the fan 5, the air is sent into the ventilation channel 3, and the air in the ventilation channel 3 is uniformly heated by the heaters 4 symmetrically arranged on the inner wall of the box body 1, and finally enters the inside of the inner container 2 through the unclosed front surface of the inner container 2, so that the temperature field distribution in the whole box body 1 is uniform.

[0038] Optionally, the heaters 4 can be arranged in various ways: the heaters 4 can be arranged on the rear wall of the box body 1, on the left and right walls of the box body 1, on the upper wall and the left and right walls of the box body 1, or on the upper and lower walls and the left and right walls of the box body 1, so that the distribution of the heaters 4 is symmetrical, thereby ensuring the uniformity of the temperature field inside the box body 1.

[0039] On the basis of the above embodiment, the box body 1 is a rectangular shell with an unclosed front surface, and the front surface of the box body 1 is hingedly connected with a box cover 7.

[0040] Specifically, the front surface of the box body 1 is not closed, and is connected with the box cover 7 in a hinged manner, and when it is needed to place a culture dish into the inner container 2, the box cover 7 is rotated around the hinge, and the box cover 7 is opened.

[0041] On the basis of the above embodiment, the inner container 2 is provided with a ventilation area near the edge of the box cover 7 in the closed state, and the rear wall of the inner container 2 is provided with a ventilation opening 8 penetrating the wall surface.

[0042] Specifically, the size of the inner container 2 is smaller than that of the box 1, and the inner container 2 is provided with a ventilation area near the edge of the box cover 7 in the closed state. The air in the ventilation channel 3 can enter the inner container 2 uniformly through the ventilation area. The rear wall of the inner container 2 is provided with a ventilation opening 8 penetrating the wall surface, and the air in the inner container 2 can be discharged through the ventilation opening 8 and sent into the ventilation channel 3 by the fan 5, thereby realizing the circulation of the air in the box 1.

[0043] Therefore, the flow direction of the air is as follows: the air is sent into the ventilation channel 3 by the rotation of the fan 5, flows from the ventilation channel 3 to the ventilation area, enters the inner container 2 through the ventilation area, and then flows to the fan 5 from the ventilation opening 8, thereby realizing the circulation of the air in the box 1.

[0044] Optionally, a plurality of holes can be arranged on the upper, lower, left and right surfaces of the inner container 2 near the box door 8 for air circulation.

[0045] Optionally, the ventilation area near the edge of the inner container 2 near the box cover 7 is a grid structure ventilation area, or a louver ventilation structure, or other ventilation structures.

[0046] On the basis of the above embodiment, the evaporator 6 is arranged inside the rear wall of the box 1, and the evaporator 6 is a ring-shaped member or a spiral structure member.

[0047] It should be noted that the spiral structure member can be a spiral structure arranged in a plane, or a three-dimensional spiral structure extending along an axial direction through a center point. The three-dimensional spiral structure includes a spiral structure with a constant radius, which is similar to a straight spring, and a spiral structure with a gradually increasing radius along the axial direction.

[0048] Preferably, the center of the evaporator 6 is arranged at the centroid of the rear wall of the box 1.

[0049] Specifically, the evaporator 6 is arranged inside the rear wall of the box 1, which can save space. The evaporator 6 is a ring-shaped member with a larger inner radius than the fan 5. In the refrigeration working condition, the evaporator 6 is started and refrigerated. Arranging the evaporator 6 at the centroid of the rear wall of the box 1 enables the evaporator 6 to uniformly cool the air in the box 1.

[0050] In some embodiments, the thickness of the evaporator 6 is greater than 50% of the distance between the box 1 and the inner container 2.

[0051] Specifically, the thickness of the evaporator 6 needs to be greater than 50% of the distance between the box 1 and the inner container 2, so as to ensure that the evaporator 6 can be in full contact with the air at the fan 5 located inside the box 1, so that the evaporator 6 can fully and uniformly cool the air entering the ventilation channel 3.

[0052] In some embodiments, the distance between the box 1 and the inner container 2 is less than twice the axial thickness of the fan 5.

[0053] Specifically, the distance between the box 1 and the inner container 2 cannot be too large, and the distance between the two should be less than twice the axial thickness of the fan 5, which can ensure that the fan 5 can fully drive the air flow in the ventilation channel 3, and prevent uneven temperature field distribution caused by insufficient air flow.

[0054] On the basis of the above-mentioned embodiments, the distance between the center of the rear wall of the inner container 2 and the center of the rear wall of the box 1 is less than the distance between the four corners of the rear wall of the inner container 2 and the four corners of the rear wall of the box 1, so that the width dimension of the ventilation channel 3 gradually expands to the four corners by the fan 5.

[0055] Specifically, the center of the rear wall of the inner container 2 is arranged as a structure protruding towards the rear wall inside the box 1, so that the distance between the center of the rear wall of the inner container 2 and the center of the rear wall of the box 1 is less than the distance between the four corners of the rear wall of the inner container 2 and the four corners of the rear wall of the box 1, so that the width dimension of the ventilation channel 3 gradually expands to the four corners by the fan 5, and the distance between the fan 5 and the inner container 2 is the smallest dimension of the ventilation channel 3, so that the fan 5 can fully drive the air flow, and the temperature field is uniformly distributed.

[0056] In some embodiments, the evaporator 6 includes a finned tube, and the evaporator 6 uniformly cools the air flowing through the finned tube.

[0057] Specifically, the evaporator 6 includes a finned tube, and the finned tube increases the heat exchange amount of the evaporator 6 and strengthens the cooling effect of the evaporator 6.

[0058] Optionally, the finned tube of the evaporator 6 can be a spiral or ring-shaped finned tube, which includes a light tube and fins. The fins can be continuous spiral fins, or other types of fins, such as ring-shaped fins, square fins, H-shaped fins, needle-shaped fins, etc.

[0059] In addition to the above incubator, the present application also provides a microorganism culture device including the incubator disclosed in the above embodiments. The structures of other parts of the microorganism culture device refer to the prior art, and will not be described herein.

[0060] Each embodiment in the specification is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between each embodiment can be referred to each other.

[0061] The incubator and the microorganism culture device provided by the present application are described in detail above. The principles and implementation manners of the present application are described by using specific examples in this paper, and the above description of the examples is only used to help understand the method of the present application and the core idea thereof. It should be pointed out that, for those skilled in the art, some improvements and modifications can be made to the present application without departing from the principles of the present application, and these improvements and modifications also fall within the protection scope of the claims of the present application.

Claims

1. An incubator, characterized in that, The application relates to a culture box, comprising: a box body (1) which is a hollow shell; an inner container (2) arranged in the box body (1), wherein gaps are formed between the box body (1) and the walls of the inner container (2) to form a ventilation channel (3) for air flow, and the inner container (2) is a hollow shell with an unclosed front surface; a plurality of heaters (4) symmetrically arranged on the inner wall of the box body (1); a fan (5) arranged at the center of the rear wall of the box body (1) to send air into the ventilation channel (3); and an evaporator (6) arranged at the center of the rear wall of the box body (1) to cool the air in the box body (1); wherein the distance between the center of the rear wall of the inner container (2) and the center of the rear wall of the box body (1) is smaller than the distance between the periphery of the rear wall of the inner container (2) and the periphery of the rear wall of the box body (1), so that the width of the ventilation channel (3) gradually increases from the center of the rear wall of the box body (1) to the periphery; the box body (1) is a rectangular shell with an unclosed front surface, and a box cover (7) is hingedly connected to the front surface of the box body (1); when the box cover (7) is closed, a ventilation area is arranged at the edge of the inner container (2) close to the box cover (7), and a ventilation opening (8) is arranged at the center of the rear wall of the inner container (2); the evaporator (6) is arranged in the rear wall of the box body (1) and has a ring shape or a spiral structure; the thickness of the evaporator (6) is greater than 50% of the distance between the box body (1) and the inner container (2); the distance between the box body (1) and the inner container (2) is smaller than twice the axial thickness of the fan (5); and the inner radius of the evaporator (6) is greater than the fan (5). The ventilation area at the edge of the inner container (2) close to the box cover (7) is a grating structure ventilation area or a louver ventilation structure. The evaporator (6) comprises finned tubes, and the evaporator (6) uniformly cools air through the finned tubes. The culture box is the culture box according to any one of claims 1 to 3. ​ ​ ​ ​ ​ ​ ​ ​ ​ 2. Incubator according to claim 1, characterized in that ​ 3. Incubator according to claim 1 or 2, characterized in that ​ 4. A microorganism culturing apparatus comprising a culture box, characterized by ​

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