High and low temperature and damp heat test box with dustproof function

Abstract

The utility model discloses a high and low temperature damp heat test case with dustproof function relates to high and low temperature damp heat test case technical field, including test case main part, test case main part one side is equipped with dustproof subassembly, is used for carrying out dustproof filtration to the fresh air of test case main part inside entering and the exhaust gas of discharging, dustproof subassembly includes two fixed frame. The utility model discloses through the middle -efficiency bag -type filter and the protection grating to the fresh air of test case main part inside entering and the exhaust gas of discharging are filtered, effectively prevent the outside dust from entering test case main part inside and pollute test sample, avoid the influence test result's accuracy, prevent the particle or pollutant of inside test simultaneously produced with exhaust gas discharging, protect the environment and reduce equipment internal dust accumulation, maintain the cleanliness of key components, ensure the stability of temperature and humidity control and the reliability of test case main part long -term operation, prolong the life of the appliance.

Description

Technical Field

[0001] This utility model relates to the technical field of high and low temperature humidity test chambers, specifically a high and low temperature humidity test chamber with dustproof function. Background Technology

[0002] High and low temperature humidity test chambers are test chambers that can change the internal temperature and humidity of the chamber. They are suitable for testing the performance indicators of aerospace products, information electronic instruments, materials, electrical and electronic products, and various electronic components under high temperature, low temperature or humid heat environments.

[0003] For example, a high and low temperature humidity test chamber according to Chinese patent application number CN202122567196.0 includes a chamber body with a test chamber inside. A door is rotatably connected to the outer wall of the chamber body near the test chamber. The lower surface of the chamber body is provided with four universal wheels and four reinforcing structures. A motor is fixed to the upper surface of the chamber body, and a rotating shaft is connected to the drive end of the motor. The bottom end of the rotating shaft extends through the top wall of the chamber body into the test chamber. In this utility model, a chamber body and a motor are provided. Inside the chamber body, there is a rotating shaft and multiple trays. Each tray consists of two semi-circular discs. When the test chamber is used for experiments and the internal temperature of the test chamber changes, the rotating shaft is driven by the motor to rotate, thereby rotating the products on the tray surfaces. This ensures that all products are heated evenly. The rotating shaft has several through holes. By changing the connection of the second bolt at the bottom of the tray to different through holes, the position of the tray can be changed, thereby changing the space inside the test chamber.

[0004] However, in actual use, the above-mentioned device is prone to dust entering the test chamber during operation. It cannot prevent dust from entering, which will affect the final test results and result in poor performance. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a high and low temperature humidity test chamber with dustproof function. It filters the incoming fresh air and outgoing exhaust gas through a medium-efficiency bag filter and a protective grille, effectively preventing external dust from entering the test chamber and contaminating the test samples, thus avoiding affecting the accuracy of the test results. Simultaneously, it prevents particles or pollutants generated during internal testing from being discharged with the exhaust gas, protecting the environment, reducing dust accumulation inside the equipment, maintaining the cleanliness of key components, ensuring the stability of temperature and humidity control and the long-term reliability of the test chamber, and extending the service life of the equipment. This effectively solves the problems in the background technology.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a high and low temperature humidity test chamber with dustproof function, comprising a test chamber body; The test chamber body is equipped with a dustproof component on one side, which is used to filter the fresh air entering the test chamber body and the exhaust gas exiting the test chamber body. The dustproof assembly includes two fixed frames, which are respectively located at the bottom rear side of the test chamber body and the top front side of the test chamber body. Each fixed frame has a snap-fit ​​groove at its top and bottom. The two snap-fit ​​grooves are connected by the same snap-fit ​​plate. A protective grid is fixedly installed inside the snap-fit ​​plate. A medium-efficiency bag filter is installed inside the fixed frame.

[0007] Preferably, both medium-efficiency bag filters are located on one side close to the main body of the test chamber. The top and bottom of each medium-efficiency bag filter are fixedly provided with fixing plates. Two horizontally distributed first bolts are threadedly connected to the fixing plates to fix the fixing frame and the medium-efficiency bag filter, making it easy to unscrew the first bolts, disassemble the medium-efficiency bag filter, and clean its interior.

[0008] Preferably, a fresh air inlet is provided at the bottom rear side of the main body of the test chamber, and the fixed frame at the rear side covers the fresh air inlet. The fresh air inlet filters to prevent external dust from contaminating the sample and the test environment. An exhaust outlet is provided at the top front side of the main body of the test chamber, and the fixed frame at the front side covers the exhaust outlet. The exhaust outlet filters to prevent internal particles from leaking out and contaminating the environment. At the same time, the airflow is from bottom to top, which conforms to the movement law of hot and humid air, reducing the secondary re-flying or being carried out of the internal dust due to airflow turbulence. In addition, the reasonable layout helps to form a more stable airflow and reduces the possibility of dust accumulating in corners.

[0009] Preferably, each of the four corners of the fixing frame is connected by a second bolt for fixing the fixing frame and the test chamber body, which makes it easy to unscrew the second bolts, disassemble the fixing frame, and facilitate its maintenance. The independent filtration of the air inlet and outlet forms a complete dust barrier.

[0010] Preferably, sealing gaskets are fixedly provided at the top and bottom of the fixed frame, and the sealing gaskets are located at the intersection between the test chamber body and the fixed frame to ensure overall sealing. A rain cover is fixedly provided on the front side of the top of the fixed frame to prevent rainwater and large dust particles from falling directly in, while allowing exhaust gas to be discharged smoothly.

[0011] Preferably, a door is hinged to one end of the bottom front side of the test chamber body, and an opening is provided in the center of the door. A hollow glass observation window is fixed inside the opening to facilitate viewing the inside of the hollow glass observation window. A U-shaped sealing ring is fixed to the front side of the door and is located at the intersection between the door and the test chamber body. A control panel is fixed to the other end of the bottom front side of the test chamber body to facilitate the control of the test chamber body.

[0012] Compared with the prior art, this utility model provides a high and low temperature humidity test chamber with dustproof function, which has the following beneficial effects: This invention utilizes a system where external air passes through a protective grille at the bottom rear to intercept large particles, then enters a medium-efficiency bag filter at the rear to capture dust. Finally, clean air enters the mixing zone inside the test chamber via a fresh air inlet. After the test chamber is used, the humid and hot exhaust gas inside, driven by a negative pressure fan at the top, flows through the exhaust outlet, passes through a medium-efficiency bag filter built into the front fixed frame to adsorb sample debris, and then undergoes secondary interception through the front protective grille. Simultaneously, a rain cover blocks backflow of dust, achieving automatic air circulation inside the test chamber. This effectively prevents external dust from entering the test chamber and contaminating the test samples, avoiding any impact on the accuracy of the test results. It also prevents particles or pollutants generated during internal testing from being discharged with the exhaust gas, protecting the environment, reducing dust accumulation inside the equipment, maintaining the cleanliness of key components, ensuring the stability of temperature and humidity control, and guaranteeing the long-term reliability of the test chamber, thus extending its service life. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a rear view of the overall structure of this utility model; Figure 3 This is a schematic diagram showing the overall structure of this utility model separated from the rest. Figure 4 This is a schematic diagram showing the overall structure of this utility model separated from the rest. Figure 5 This is a partial structural diagram of the dustproof component of this utility model; Figure 6 This is a partial structural diagram of the dustproof component of this utility model.

[0014] In the diagram: 1. Main body of the test chamber; 2. Chamber door; 3. Hollow glass observation window; 4. U-shaped sealing ring; 5. Control panel; 6. Dustproof components; 7. Rainproof cover; 8. Fresh air inlet; 9. Exhaust gas outlet. 61 Fixed frame, 62 Clip slot, 63 Clip plate, 64 Protective grille, 65 Medium-efficiency bag filter, 66 Fixed plate, 67 First bolt, 68 Second bolt, 69 Sealing gasket. Detailed Implementation

[0015] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0016] like Figure 1-6As shown, this utility model provides a high and low temperature humidity test chamber with dustproof function, including a test chamber body 1. A door 2 is hinged to one end of the bottom front side of the test chamber body 1. An opening is provided in the center of the door 2. A hollow glass observation window 3 is fixed inside the opening to facilitate viewing the inside of the hollow glass observation window 3. A control panel 5 is fixed to the other end of the bottom front side of the test chamber body 1 to facilitate control of the operation of the test chamber body 1. A U-shaped sealing ring 4 is fixed to the front side of the door 2 and is located at the intersection between the door 2 and the test chamber body 1.

[0017] like Figure 1-6 As shown, a dustproof component 6 is provided on one side of the test chamber body 1, which is used to filter the fresh air entering the test chamber body 1 and the exhaust gas exiting the test chamber body 1. The dustproof component 6 includes two fixing frames 61, which are respectively located at the bottom rear side and the top front side of the test chamber body 1. The top and bottom inner ends of the fixing frames 61 are provided with snap-fit ​​grooves 62, and the same snap-fit ​​plate 63 is snapped between the two snap-fit ​​grooves 62.

[0018] The snap-fit ​​plate 63 is internally fixed with a protective grid 64. The fixed frame 61 is internally fixed with a medium-efficiency bag filter 65. Both medium-efficiency bag filters 65 are located on one side close to the main body 1 of the test chamber. The top and bottom of the medium-efficiency bag filter 65 are fixed with fixing plates 66. The fixing plates 66 are threaded with two horizontally distributed first bolts 67 for fixing the fixed frame 61 and the medium-efficiency bag filter 65, which facilitates unscrewing the first bolts 67, disassembling the medium-efficiency bag filter 65, and cleaning its interior.

[0019] The test chamber body 1 has a fresh air inlet 8 at the bottom rear side, and the fixed frame 61 at the rear side covers the fresh air inlet 8. The fresh air inlet 8 filters to prevent external dust from contaminating the sample and the test environment. The test chamber body 1 has an exhaust outlet 9 at the top front side, and the fixed frame 61 at the front side covers the exhaust outlet 9. The exhaust outlet 9 filters to prevent internal particles from leaking out and contaminating the environment. At the same time, the airflow is from bottom to top, which conforms to the movement law of hot and humid air, reducing the secondary re-flying or being carried out of the internal dust due to airflow turbulence. In addition, the reasonable layout helps to form a more stable airflow and reduces the possibility of dust accumulating in corners.

[0020] Each of the four corners of the fixed frame 61 is connected by a second bolt 68 for fixing the fixed frame 61 and the test chamber body 1. This allows for easy unscrewing of the second bolts 68, disassembly of the fixed frame 61, and convenient maintenance. The independent filtration of the inlet and outlet air forms a complete dust barrier. The top and bottom of the fixed frame 61 are fixed with sealing gaskets 69, which are located at the intersection between the test chamber body 1 and the fixed frame 61 to ensure overall sealing. The front of the fixed frame 61 is fixed with a rain cover 7 to prevent rainwater and large dust particles from falling in directly, while allowing exhaust gas to be discharged smoothly.

[0021] By setting up the dustproof component 6, external air passes through the protective grille 64 at the bottom rear side to intercept large particles, and then enters the medium-efficiency bag filter 65 at the rear side to capture dust. Finally, clean air enters the mixed air zone inside the test chamber body 1 through the fresh air inlet 8. After the test chamber body 1 is used, the humid and hot exhaust gas inside the test chamber body 1 is driven by the negative pressure fan at the top and flows through the exhaust outlet 9 through the medium-efficiency bag filter 65 built into the front fixed frame 61 to adsorb sample debris, and then passes through the protective grille 64 at the front side for secondary interception. Meanwhile, the rain cover 7 blocks backflow of dust, enabling automatic air circulation inside the test chamber body 1. This effectively prevents external dust from entering the test chamber body 1 and contaminating the test samples, thus avoiding affecting the accuracy of the test results. It also prevents particles or pollutants generated during internal testing from being discharged with the exhaust gas, protecting the environment and reducing dust accumulation inside the equipment. This maintains the cleanliness of key components, ensures the stability of temperature and humidity control and the long-term reliability of the test chamber body 1, and extends the service life of the equipment.

[0022] 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 embodiments and descriptions in the specification 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 the claimed utility model.

Claims

1. A high and low temperature humidity test chamber with dustproof function, comprising a test chamber body (1), characterized in that: The test chamber body (1) is provided with a dustproof component (6) on one side, which is used to filter the fresh air entering the test chamber body (1) and the exhaust gas exiting the test chamber body (1) for dust prevention; The dustproof component (6) includes two fixed frames (61), which are respectively located at the bottom rear side of the test chamber body (1) and the top front side of the test chamber body (1). The top and bottom internal ends of the fixed frames (61) are provided with snap-fit ​​grooves (62). The two snap-fit ​​grooves (62) are connected to the same snap-fit ​​plate (63). The snap-fit ​​plate (63) is fixedly provided with a protective grille (64). The fixed frame (61) is provided with a medium-efficiency bag filter (65).

2. The high and low temperature humidity test chamber with dustproof function according to claim 1, characterized in that: Both medium-efficiency bag filters (65) are located on one side close to the main body (1) of the test chamber. The top and bottom of the medium-efficiency bag filters (65) are fixed with fixing plates (66). The fixing plates (66) are connected by threads with two horizontally distributed first bolts (67) for fixing the fixing frame (61) and the medium-efficiency bag filters (65).

3. The high-low temperature damp heat test chamber with dustproof function according to claim 1, characterized in that: The test chamber body (1) has a fresh air inlet (8) at the bottom rear side, and the fixed frame (61) at the rear side covers the fresh air inlet (8). The test chamber body (1) has an exhaust outlet (9) at the top front side, and the fixed frame (61) at the front side covers the exhaust outlet (9).

4. A high and low temperature humidity test chamber with dustproof function according to claim 1, characterized in that: The four corners of the fixed frame (61) are each connected by a second bolt (68) for fixing the fixed frame (61) and the test chamber body (1).

5. A high and low temperature humidity test chamber with dustproof function according to claim 1, characterized in that: The top and bottom of the fixed frame (61) are both fixed with sealing gaskets (69), and the sealing gaskets (69) are located at the intersection between the test chamber body (1) and the fixed frame (61). The front side of the fixed frame (61) is fixed with a rain cover (7).

6. A high and low temperature humidity test chamber with dustproof function according to claim 1, characterized in that: The test chamber body (1) has a door (2) connected to one end of the bottom front side by a hinge. The door (2) has an opening in the center. A hollow glass observation window (3) is fixed inside the opening. A U-shaped sealing ring (4) is fixed on the front side of the door (2) and is located at the intersection between the door (2) and the test chamber body (1). A control panel (5) is fixed on the other end of the bottom front side of the test chamber body (1).

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