A constant temperature and humidity test chamber with sufficient air replacement

Abstract

This utility model relates to the technical field of constant temperature and humidity test chambers, and proposes a constant temperature and humidity test chamber that fully replaces air, effectively replacing air, improving the uniformity of the experimental environment and the accuracy of experimental results. It is suitable for various experimental and testing sites with stringent environmental quality requirements. The chamber includes a chamber structure, on which a control structure is installed. The chamber structure is connected to a temperature structure and a humidity structure. One side of the chamber structure has an air inlet with an air intake structure communicating with the sample chamber of the chamber structure. The other side of the chamber structure has an exhaust port with an exhaust structure communicating with the sample chamber of the chamber structure. Both the air intake structure and the exhaust structure are electrically connected to the control structure to control the air exchange time interval and duration of the air intake and exhaust structures.

Description

Technical Field

[0001] This utility model relates to the technical field of constant temperature and humidity test chambers, and more specifically, to a constant temperature and humidity test chamber that fully replaces air. Background Technology

[0002] A constant temperature and humidity chamber is a device used to conduct experiments on samples under specific constant temperature and humidity conditions. Traditional constant temperature and humidity chambers only have basic temperature and humidity control functions and lack air exchange capabilities, resulting in serious air circulation problems and limited sample composition. Due to the inadequate air exchange, the following drawbacks exist when using a constant temperature and humidity chamber for sample testing:

[0003] 1. The constant temperature and humidity test chamber may accumulate dust, microorganisms, chemicals and other pollutants, which may adhere to the sample and interfere with the experimental results;

[0004] 2. This can lead to uneven humidity distribution inside the constant temperature and humidity chamber, with some areas experiencing excessively high or low humidity, which can cause deviations in experiments requiring specific humidity conditions.

[0005] 3. It affects the heat exchange effect inside the constant temperature and humidity chamber, resulting in uneven temperature distribution, which in turn affects the repeatability and accuracy of the experiment. Utility Model Content

[0006] The purpose of this invention is to solve the problems mentioned in the background art, and to propose a constant temperature and humidity test chamber that fully replaces air.

[0007] The technical solution adopted by this utility model to solve its technical problem is:

[0008] A constant temperature and humidity test chamber for fully replacing air includes a chamber structure, a control structure installed on the chamber structure, a temperature structure and a humidity structure connected to the chamber structure, an air inlet on one side of the chamber structure with an air intake structure communicating with the sample chamber of the chamber structure, and an exhaust port on the other side of the chamber structure with an exhaust structure communicating with the sample chamber of the chamber structure. Both the air intake structure and the exhaust structure are electrically connected to the control structure to control the air exchange time interval and duration of the air intake structure and the exhaust structure.

[0009] Furthermore, the above solution includes an air compressor, an air filter connected to the air compressor via an air outlet pipe, an air filter connected to the air inlet via an air guide pipe, and a digital display air flow meter and an air regulating valve installed on the air guide pipe.

[0010] Furthermore, the above-mentioned solution includes an exhaust fan located inside the exhaust port.

[0011] Furthermore, the exhaust end of the exhaust fan is equipped with a one-way vent valve, which is located outside the exhaust port and allows gas to pass from the sample chamber of the box structure towards the exhaust port.

[0012] Furthermore, the above scheme includes an air distribution plate installed inside the sample chamber of the box structure.

[0013] Furthermore, the above solution includes two air distribution plates, one of which is located inside the air inlet and the other inside the air outlet.

[0014] Furthermore, the above solution includes an adjustable height storage structure installed inside the sample chamber of the box structure.

[0015] Furthermore, the above solution includes a guide rail, which is vertically arranged on the back of the sample chamber of the box structure. The guide rail has a number of positioning holes arranged linearly along the height direction. A slider is slidably fitted on the guide rail. The slider has a mating hole corresponding to one of the positioning holes, and a positioning pin is connected between the two. A placement plate is installed on the slider.

[0016] Furthermore, the above solution includes a rectangular guide rail and an n-shaped slider that is adapted to the outer contour of the guide rail.

[0017] Furthermore, the above solution includes several ventilation holes on the shelf.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] This invention, based on the traditional chamber, control, temperature and humidity structure for achieving a constant temperature and humidity environment in the sample chamber, innovatively adds an air intake structure and an exhaust structure, respectively connected to the sample chamber of the chamber structure. The air exchange time interval and duration of the two are regulated by the control structure. The air intake structure introduces fresh air, and the exhaust structure discharges stale gas. The two work together to form a directional airflow, which not only ensures sufficient air replacement and avoids abnormal gas composition in the sample chamber of the chamber structure, but also reduces the impact on temperature and humidity stability through parameter optimization. It achieves synergy between air composition renewal and environmental constancy, effectively improving the uniformity of the experimental environment and the accuracy of experimental results. It is suitable for various experimental and testing scenarios with stringent environmental quality requirements. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a schematic diagram showing the installation location of the air distribution plate;

[0022] Figure 3 This is a schematic diagram showing the installation location of the storage structure;

[0023] Figure 4 This is a diagram showing the installation location of the locating pin;

[0024] Figure 5 This is a schematic diagram of the shelf structure;

[0025] The components include: 1. Cabinet structure; 2. Control structure; 3. Temperature structure; 4. Humidity structure; 5. Air intake structure; 51. Air compressor; 52. Air outlet pipe; 53. Air filter; 54. Air guide pipe; 55. Digital display air flow meter; 56. Air regulating valve; 6. Exhaust structure; 61. Exhaust fan; 62. One-way vent valve; 7. Air distribution plate; 8. Storage structure; 81. Guide rail; 811. Positioning hole; 82. Slider; 821. Docking hole; 83. Positioning pin; 84. Storage plate; 841. Vent hole. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model. The present utility model will be further described with reference to the accompanying drawings and embodiments:

[0027] A constant temperature and humidity test chamber with complete air replacement, see attached. Figure 1 As shown, the device includes a housing structure 1, on which a control structure 2 is installed. The housing structure 1 is connected to a temperature structure 3 and a humidity structure 4, so that the housing structure 1 can provide a constant temperature and humidity environment for the sample chamber under the action of the control structure 2, temperature structure 3 and humidity structure 4. The above solution is a conventional technical means, and this utility model will not elaborate on it. The improvement of this utility model is that: an air inlet (not shown in the figure) is provided on one side of the housing structure 1, and an air inlet structure 5 is provided at the air inlet to communicate with the sample chamber of the housing structure 1. An exhaust port (not shown in the figure) is provided on the other side of the housing structure 1, and an exhaust port 6 is provided at the exhaust port to communicate with the sample chamber of the housing structure 1. Both the air inlet structure 5 and the exhaust structure 6 are electrically connected to the control structure 2 to control the air exchange time interval and duration of the air inlet structure 5 and the exhaust structure 6.

[0028] The core improvement of this invention lies in the linkage control of the air intake structure 5 and the exhaust structure 6. By adjusting the time interval and duration of air exchange through the control structure 2, the air in the sample chamber of the chamber structure 1 is fully replaced, ensuring the uniformity and stability of the sample chamber environment. Existing technologies have already achieved basic control of a constant temperature and humidity environment, and this invention further optimizes the air circulation efficiency. When the preset air exchange time interval is reached, the control structure 2 automatically triggers the synchronous operation of the air intake structure 5 and the exhaust structure 6. The air intake structure 5 injects fresh air into the sample chamber of the chamber structure 1 from the air inlet, while the exhaust structure 6 discharges the original air in the sample chamber through the exhaust outlet, forming air convection. After the air exchange duration ends, the air intake structure 5 and the exhaust structure 6 automatically stop, and the chamber structure 1 returns to a closed state, continuing to maintain a constant temperature and humidity environment. The above air exchange process is executed cyclically according to the set time interval until the experiment ends.

[0029] For the above scheme, please refer to the appendix for details. Figure 1 As shown, the air intake structure 5 includes an air compressor 51. The air compressor 51 is connected to an air filter 53 through an air outlet pipe 52. The air filter 53 is connected to the air inlet through an air guide pipe 54. A digital display air flow meter 55 and an air regulating valve 56 are installed on the air guide pipe 54.

[0030] In this design, the air compressor 51 compresses air and sends it through the outlet pipe 52 to the air filter 53. The filter purifies the air, removing impurities, dust, and other contaminants to ensure that the air entering the sample chamber of the chamber structure 1 is clean. The purified air is then transmitted to the air inlet through the air guide pipe 54. The digital display air flow meter 55 on the air guide pipe 54 can display the air flow in real time, facilitating accurate monitoring of the intake volume. The air regulating valve 56 can flexibly adjust the air velocity and flow rate to adapt to different experimental needs. This structural design achieves efficient air purification, accurate measurement, and flexible control. It not only ensures a clean environment in the sample chamber of the chamber structure 1 and avoids sample contamination, but also, by precisely controlling the intake volume and flow rate, works in conjunction with the exhaust structure 6 to more effectively achieve air replacement, improving the stability and uniformity of the constant temperature and humidity environment, and providing strong support for the accuracy and reliability of the experiment.

[0031] For the above scheme, please refer to the appendix for details. Figure 1 As shown, the exhaust structure 6 includes an exhaust fan 61, which is located inside the exhaust port. The exhaust end of the exhaust fan 61 is provided with a one-way vent valve 62, which is located outside the exhaust port and allows gas to pass from the sample chamber of the box structure 1 toward the exhaust port.

[0032] In this design, an exhaust fan 61 located inside the exhaust port actively draws air from the sample chamber of the chamber structure 1 and quickly discharges the gas inside, achieving an air replacement function in conjunction with the air intake structure 5. Meanwhile, a one-way vent valve 62 at the exhaust end of the exhaust fan 61 is installed outside the exhaust port. This valve only allows gas to pass from the sample chamber towards the exhaust port, forming a one-way flow mechanism. This effectively prevents untreated external air from flowing back into the sample chamber of the chamber structure 1, avoiding contamination of the sample chamber environment. At the same time, it ensures stable air pressure inside the sample chamber of the chamber structure 1, preventing air pressure fluctuations from affecting the constant temperature and humidity effect. This structural design not only ensures efficient exhaust but also enhances the sealing and environmental stability of the sample chamber of the chamber structure 1, providing a reliable environmental guarantee for the experiment.

[0033] For the above scheme, please refer to the appendix for details. Figure 2 As shown, the sample chamber of the box structure 1 is equipped with an air distribution plate 7, and there are two air distribution plates 7, one of which is located inside the air inlet and the other is located inside the air outlet.

[0034] The air distribution plate 7 inside the air inlet can evenly disperse the air entering the sample chamber of the chamber structure 1, preventing the airflow from directly impacting the sample and weakening the eddies generated by the high-speed airflow, so that the air enters the sample chamber of the chamber structure 1 evenly. The air distribution plate 7 inside the air outlet can regulate the air in the sample chamber of the chamber structure 1, so that the exhaust airflow is stable and orderly, and ensures that the air circulates fully in the sample chamber of the chamber structure 1. This design effectively avoids the problem of uneven local temperature and humidity in the sample chamber of the chamber structure 1, improves the uniformity and stability of the sample chamber environment, ensures the reliability and consistency of experimental data, and provides a more ideal testing environment for various high-precision experiments.

[0035] From a user's perspective, the above solutions are as follows: (See Appendix) Figure 3 - Appendix Figure 5 As shown, the sample chamber of the box structure 1 is equipped with a height-adjustable storage structure 8. Specifically, the storage structure 8 includes a guide rail 81, which is rectangular and vertically arranged on the back of the sample chamber of the box structure 1. The guide rail 81 has a number of positioning holes 811 linearly arranged along the height direction. A slider 82 with an n-shaped structure and adapted to the outer contour of the guide rail 81 is slidably fitted on the guide rail 81. The slider 82 has a mating hole 821 corresponding to one of the positioning holes 811, and a positioning pin 83 is connected between the two to limit the position height of the slider 82 on the guide rail 81. A storage plate 84 is installed on the slider 82, and a number of ventilation holes 841 are opened on the storage plate 84.

[0036] The rectangular guide rail 81, vertically mounted on the back of the sample chamber, along with linearly arranged positioning holes 811, provides multiple selectable positions for adjusting the height of the placement plate 84. The n-shaped slider 82 slides with the guide rail 81, facilitating easy assembly and disassembly. The slider 82 is precisely locked in place by inserting positioning pins 83 into the docking holes 821 and positioning holes 811, allowing for flexible adjustment of the placement plate 84's height. Simultaneously, the ventilation holes 841 on the placement plate 84 ensure free airflow within the sample chamber of the housing structure 1, preventing obstruction by the placement plate 84 from affecting air exchange and temperature / humidity uniformity. This structural design not only meets the requirements for placing samples of different sizes and quantities but also ensures smooth airflow circulation, enhancing the flexibility of use and environmental stability, effectively improving the operability and reliability of the experiment.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A constant temperature and humidity test chamber with sufficient displacement of air, comprising a cabinet structure (1), a control structure (2) is installed on the cabinet structure (1), a temperature structure (3) and a humidity structure (4) are connected to the cabinet structure (1), characterized in that: The box structure (1) has an air inlet on one side, and an air inlet structure (5) connected to the sample chamber of the box structure (1) is provided at the air inlet. The box structure (1) has an exhaust port on the other side, and an exhaust structure (6) connected to the sample chamber of the box structure (1) is provided at the exhaust port. Both the air inlet structure (5) and the exhaust structure (6) are electrically connected to the control structure (2) to control the air exchange time interval and duration of the air inlet structure (5) and the exhaust structure (6).

2. The constant temperature and humidity test chamber of claim 1, wherein: The air intake structure (5) includes an air compressor (51), which is connected to an air filter (53) via an air outlet pipe (52). The air filter (53) is connected to the air inlet via an air guide pipe (54), and a digital display air flow meter (55) and an air regulating valve (56) are installed on the air guide pipe (54).

3. The constant temperature and humidity test chamber of claim 2, wherein: The exhaust structure (6) includes an exhaust fan (61), which is located inside the exhaust port.

4. The constant temperature and humidity test chamber with fully replaced air according to claim 3, characterized in that: The exhaust fan (61) is equipped with a one-way vent valve (62) at the exhaust end. The one-way vent valve (62) is located outside the exhaust port and allows gas to pass from the sample chamber of the box structure (1) towards the exhaust port.

5. A constant temperature and humidity test chamber with fully replaced air according to claim 4, characterized in that: The sample chamber of the box structure (1) is equipped with a uniform air distribution plate (7).

6. The constant temperature and humidity test chamber with fully replaced air according to claim 5, characterized in that: There are two air distribution plates (7), one of which is located inside the air inlet and the other is located inside the air outlet.

7. A constant temperature and humidity test chamber with fully replaced air according to claim 6, characterized in that: The sample chamber of the box structure (1) is equipped with a storage structure (8) that can adjust the height position.

8. A constant temperature and humidity test chamber with fully replaced air according to claim 7, characterized in that: The placement structure (8) includes a guide rail (81), which is vertically arranged on the back of the sample chamber of the box structure (1). The guide rail (81) has a number of positioning holes (811) arranged linearly along the height direction. A slider (82) is slidably fitted on the guide rail (81). The slider (82) has a docking hole (821) that is opposite to one of the positioning holes (811), and a positioning pin (83) is connected between the two. A placement plate (84) is installed on the slider (82).

9. A constant temperature and humidity test chamber for fully replacing air according to claim 8, characterized in that: The guide rail (81) has a rectangular structure, and the slider (82) has an n-shaped structure and is adapted to the outer contour of the guide rail (81).

10. A constant temperature and humidity test chamber for fully replacing air according to claim 9, characterized in that: The shelf (84) has several ventilation holes (841).

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