Fan-free constant-temperature incubator

Abstract

A fanless constant-temperature incubator comprises an incubator body component, wherein the incubator body component comprises an incubator body, an inner container, a test box, an inner door and an outer door; components of the box body are connected in a buckling manner, so that integral filling of a thermal insulation material is facilitated, and the processing cost is greatly reduced; a heating wire is arranged on each surface of the inner container part to independently control a heating loop, so that the temperature consistency is ensured, no fan is arranged in the inner container part, turbulence and vibration are reduced, and cells cultured in each layer are ensured to be the same; the test box is arranged outside the inner container, so that the inner container is convenient to clean, and the internal usable area is increased; the partition plate frame is welded through round steel and fixed through hand screws, dismounting and mounting are convenient, the overall detachable structure facilitates cleaning and disinfection of the interior of the box body; the heating element is mounted at the bottom of the box body and is independently controlled, so that the temperature at the position is always lower than that at other positions of the box body, a condensation point is formed, and condensed water is prevented from forming, dripping and polluting a culture sample at other positions in the box body.

Description

TECHNICAL FIELD

[0001] The utility model relates to a microorganism thermostat incubator technical field, concretely relates to a fanless thermostat incubator. BACKGROUND

[0002] The CO2 thermostat incubator is a device for culturing cells and tissues by forming a growth environment similar to that in a biological body in the incubator body, requiring stable temperature, stable CO2 concentration, uniformity, and high relative saturated humidity.

[0003] The CO2 thermostat incubator controls the concentration of CO2 by a CO2 concentration sensor. The sensor transmits the detection result to a control circuit and a solenoid valve and other control elements to control the opening and closing of the CO2 gas until the concentration is stable and reaches the set value. The humidity control is directly achieved by placing a humidifying disc in the incubator body to generate moisture through evaporation of water in the disc. The heating mode of the incubator generally has two types on the market, namely, water jacket heating and air jacket heating. The water jacket type CO2 thermostat incubator heats the water by an electric heating wire and detects the temperature change by a temperature sensor in the incubator body to keep the temperature in the incubator body constant at the set temperature. The air jacket type CO2 thermostat incubator directly heats the inner incubator body by a heater distributed in the incubator body and then stirs the gas in the incubator body by a fan to ensure the uniformity of the temperature and CO2 in the incubator body.

[0004] Although the water jacket type incubator has better insulation effect, it needs to be regularly watered, cleaned, and disinfected, and improper operation may cause cell contamination. Moreover, there is no high-temperature sterilization system, and the risk of contamination is higher. The air jacket type incubator has the advantages of fast heating, rapid temperature recovery compared with the water jacket type, low cost, and convenient maintenance.

[0005] Most of the current incubators adopt the air jacket heating mode. However, the air jacket type incubator is equipped with a fan in the incubator body for gas circulation, which may cause turbulence and vibration to result in uneven cell generation. The incubator body is integrally welded, which not only has high processing cost, but also has filling gaps after the insulation cotton is cut and filled into the incubator body, resulting in less ideal temperature uniformity. Moreover, the inner tank partition rack is stamped from sheet metal parts, which is not easy to disassemble and inconvenient for cleaning and disinfection. UTILITY MODEL CONTENTS

[0006] The utility model aims to provide a fanless thermostat incubator, which aims to overcome the defects of the prior art, solve the problems of filling gaps in the insulation cotton, resulting in less ideal temperature uniformity, uneven cell generation caused by vibration of the inner tank fan, and the inner tank partition rack being stamped from sheet metal parts, which is not easy to disassemble and inconvenient for cleaning and disinfection.

[0007] To this end, the utility model provides a fanless constant temperature incubator, including the box, the inner container, the test box, the inner door and the outer door, the inner container each outside is evenly arranged with heating line, the box is spliced by a plurality of panels and is connected by the buckle type, makes the box with the inner container between filling integrated heat preservation material, the test box is external in the inner container, install CO2 sensor, axial flow fan and humidity probe in the test box, and the air port of test box is connected with the air port of inner container through silicon rubber, and the box gas is extracted through axial flow fan, and detection is carried out.

[0008] As a preferred technical scheme of the application, the inner container side wall is fixed with a baffle frame through a nut, and the baffle frame is welded with round steel.

[0009] As a preferred technical scheme of the application, the inner container is made of mirror stainless steel by argon arc welding, forming an integrated structure, and the four corners of the inner container are designed in a semicircular shape.

[0010] As a preferred technical scheme of the application, the test box is provided with an ultraviolet sterilization lamp.

[0011] As a preferred technical scheme of the application, the inner container bottom plate is provided with an independently controlled condensing device.

[0012] As a preferred technical scheme of the application, the baffle frame bottom is limit designed for placing a humidifying disc, and the inner container bottom is provided with a heating rod.

[0013] As a preferred technical scheme of the application, the heating line arranged on the outer surface of the inner container is controlled by an independent heating circuit.

[0014] As a preferred technical scheme of the application, the outer door is provided with a heating line inside, and the outer door is filled with the heat preservation material.

[0015] As a preferred technical scheme of the application, the inner door is made of a tempered glass door.

[0016] The fanless constant temperature incubator provided by the utility model has the advantages that the box is connected by the buckle type, which is convenient for disassembly and filling of the heat preservation material; the inner container is designed without a fan, which reduces turbulence and vibration and ensures uniformity of cell growth; the external test box controls CO2 through a CO2 concentration sensor and an ultraviolet sterilization lamp regularly performs ultraviolet disinfection in the box, thereby more effectively preventing pollution during cell culture; the detachable baffle frame structure is convenient for cleaning and disinfection; the bottom condensing point design avoids condensate water from forming and dripping on other parts of the box, thereby polluting the test sample.

[0017] In addition to the objects, features and advantages described above, the present application has other objects, features and advantages. The present application will be described in further detail below with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0018] The accompanying drawings, which form a part of this specification, are included to provide a further understanding of the present application, and are incorporated in and constitute a part of this specification. The embodiments of the present application, and their

[0019] Figure 1 It is the whole structure schematic diagram of the fanless constant temperature incubator of the utility model;

[0020] Figure 2 It is the mounting schematic diagram of buckle structure in the fanless constant temperature incubator of the utility model;

[0021] Figure 3 It is the structure schematic diagram of inside in the fanless constant temperature incubator of the utility model test box;

[0022] Figure 4 It is the structure schematic diagram of the mounting of baffle frame in the fanless constant temperature incubator of the utility model;

[0023] Figure 5 It is the working principle diagram of the fanless constant temperature incubator of the utility model;

[0024] The accompanying drawings, which form a part of this specification, are included to provide a further understanding of the present application, and are incorporated in and constitute a part of this specification. The embodiments of the present application, and their DETAILED DESCRIPTION

[0025] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0026] As Figures 1-5 shown, the fanless constant temperature incubator of the utility model, including: box 1, inner container 2, test box 3, baffle frame 4, inner door 5, outer door 6 and bottom condensing device 7.

[0027] Specifically, as Figure 2 shown, the box 1 material is carbon steel spraying, and the heat preservation material 8 fills the box, and the box 1 is buckled connection, which adopts buckle structure fixation, not only facilitates the overall filling of the heat preservation material, but also greatly reduces the processing cost. The box is a detachable buckle structure, rather than a traditional integral welding structure. The heat preservation material can be filled integrally, wrapped around the inner container, without cutting, and better heat preservation effect is achieved.

[0028] The inner container 2 is made of mirror stainless steel by argon arc welding to form an integrated structure, and the four corners are semicircular for easy cleaning. The inner container 2 is provided with heating wires 9 arranged on each surface to independently control the heating circuit, directly heat the box, replace the fan design to transfer heat, and ensure the consistency of the temperature. The inner container is designed without a fan to reduce turbulence and vibration, and ensure that the cells cultured in each layer are the same.

[0029] As shown in Figure 1 , Figure 3 , the test box 3 is externally provided on the inner container 2, and the air port of the test box 3 is connected with the air port of the inner container 2 through silicone rubber. The CO2 sensor 10 is installed in the test box 3. The axial flow fan 11 extracts the CO2 gas in the inner container to the test box 3. The CO2 concentration in the box is detected by the CO2 sensor. The humidity in the box is detected by the humidity probe 12. The ultraviolet sterilization lamp 13 in the test box regularly sterilizes the gas in the box by ultraviolet rays, so as to more effectively prevent pollution during cell culture. The test box 3 is externally provided on the inner container, which facilitates the cleaning of the inner container and increases the internal use area.

[0030] As shown in Figure 4 , the partition frame 4 is welded by round steel and is fixed on the side wall of the inner container 2 through the hand screw nut 14. The inner door 5 is made of tempered glass door, which is convenient for observing the cells and better seals the gas in the box. The partition frame 4 is welded by round steel and is fixed by hand screw, which is convenient for dismounting and installing. The bottom limiting design of the partition frame 4 can place the humidifying disc 15. The whole detachable structure is convenient for cleaning and disinfecting the inside of the box.

[0031] Meanwhile, the inner container is provided with a heating rod at the bottom. The humidity generated by the evaporation of the humidifying disc can reach about 95%, and then the actual value is displayed on the liquid crystal screen by the humidity sensor in the test box.

[0032] The outer door 6 is internally provided with the heating wire 9, which is filled with thermal insulation material to effectively prevent the generation of condensed water. The bottom plate of the inner container 2 is provided with an independently controlled condensing device 7. The temperature here is the lowest temperature point of the whole box, which avoids the formation of condensed water in other parts of the box and the pollution of the cultured sample.

[0033] The working principle and working process of the fanless constant temperature incubator of the utility model are briefly described below.

[0034] As shown in Figure 5As shown, the fanless constant temperature incubator directly heats each face of the box with heating wires, without the need for fans to mix the gas and transfer heat. The temperature sensor on the box detects temperature changes, keeping the temperature in the box constant at the set temperature. The axial flow fan in the test box draws CO2 gas from the inner container through the air inlet connected to the inner container. The CO2 concentration is detected by the CO2 sensor, and the detection results are transmitted to the control circuit and electromagnetic valve control elements. If the CO2 concentration in the box is detected to be low, the electromagnetic valve opens and CO2 enters the box until the CO2 concentration reaches the set value. At this time, the electromagnetic valve is closed and the CO2 in the box is cut off.

[0035] Humidity is generated by the evaporation of the humidification disc, and the relative humidity can reach about 95%. The actual value is displayed on the liquid crystal screen through the humidity sensor in the test box. The ultraviolet sterilization lamp can be programmed to periodically sterilize the gas in the test box with ultraviolet light. After the detected gas is sterilized, it is discharged from the gas outlet to the box, forming a closed loop.

[0036] The above is only a preferred embodiment of the present application and is not intended to limit the present application. Those skilled in the art can make various changes and modifications to the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A fanless constant temperature incubator, characterized in that, It includes a box body (1), an inner liner (2), a test box (3), an inner door (5), and an outer door (6); each of the inner liner (2) is provided with a heating wire (9); the box body (1) is formed by splicing several panels together using a snap-fit ​​connection method, so that the box body (1) and the inner liner (2) are filled with an integrated heat insulation material (8). The test box (3) is placed outside the inner liner (2). The test box (3) is equipped with a CO2 sensor (10), an axial flow fan (11) and a humidity probe (12). The air inlet of the test box (3) is connected to the air inlet of the inner liner (2) through silicone rubber. The axial flow fan (11) draws out the gas in the box for testing.

2. The fanless constant temperature incubator according to claim 1, characterized in that, The partition frame (4) is fixed to the side wall of the inner liner (2) by nuts (14), and the partition frame (4) is welded from round steel.

3. The fanless constant temperature incubator according to claim 2, characterized in that, The bottom of the partition frame (4) is designed to hold the humidifying tray (15); at the same time, the bottom of the inner liner (2) is equipped with a heating rod.

4. The fanless constant temperature incubator according to claim 1, characterized in that, The test box (3) is equipped with an ultraviolet sterilization lamp (13).

5. The fanless constant temperature incubator according to claim 1, characterized in that, The bottom plate of the inner liner (2) is equipped with an independently controlled condenser (7).

6. The fanless constant temperature incubator according to claim 1, characterized in that, The inner liner (2) is made of mirror stainless steel by argon arc welding to form an integral structure, and the four corners of the inner liner (2) are designed with a semi-circular shape.

7. The fanless constant temperature incubator according to claim 1, characterized in that, The heating wires (9) arranged outside the inner liner (2) are controlled by an independent heating circuit.

8. The fanless constant temperature incubator according to claim 1, characterized in that, The outer door (6) is equipped with heating wires (9) inside, and the outer door (6) is filled with the insulation material (8).

9. The fanless constant temperature incubator according to claim 1, characterized in that, The inner door (5) is made of tempered glass.

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