Temperature and humidity double-closed-loop control high and low temperature test box

Abstract

The utility model relates to the technical field of high and low temperature test boxes, and discloses a temperature and humidity double-closed-loop control high and low temperature test box which comprises a test box main body, a top plate is arranged at the top end of the test box main body, and a refrigerating system and a humidifying system are respectively arranged at the bottom end and the top end of the left side in the test box main body. According to the temperature and humidity double-closed-loop control high and low temperature test box, the connecting rod, the frame, the handle, the threaded rod, the cleaning plate, the threaded sleeve and the servo motor are arranged, the servo motor drives the threaded rod to rotate, the threaded rod rotates so that the threaded sleeve can drive the cleaning plate to ascend and descend through the connecting rod, and therefore the cleaning plate can clean the front end of a dustproof net; according to the dust-proof net, the dust-proof net is arranged in the box door, filter holes in the dust-proof net are prevented from being blocked by impurities, and the cleaned impurities fall into the box door, so that the impurities are conveniently and uniformly treated, and the problems that dust and impurities on the dust-proof net are inconvenient to clean, and the filter holes in the dust-proof net are easily blocked are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of high and low temperature test chambers, in particular to a high and low temperature test chamber with double closed-loop control of temperature and humidity. Background Art

[0002] High and low temperature test chamber products can simulate the temperature change law in the atmospheric environment. High and low temperature tests are suitable for high and low temperature reliability tests of industrial products. High and low temperature test chambers are widely used in chemical, biological, and physical laboratories, such as medicine and health, chemical industry, genetic engineering, polymer engineering and other laboratories. The main function is to perform performance tests for products in high and low temperature environments, so that the reliability of products can be tested under different temperature environments.

[0003] There are still some problems with the common high and low temperature test chamber with dual closed-loop control of temperature and humidity. For example, when using the high and low temperature test chamber, it is necessary to ventilate the interior of the high and low temperature test chamber, but it is inconvenient to clean the dust and impurities on the dustproof net during ventilation, which can easily cause the filter holes inside the dustproof net to be blocked.

[0004] Therefore, we proposed a high and low temperature test chamber with dual closed-loop control of temperature and humidity to improve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a high and low temperature test box with dual closed-loop control of temperature and humidity, so as to solve the problem in the above-mentioned background technology that it is inconvenient to clean the dust and impurities on the dustproof net, which easily leads to the clogging of the filter holes inside the dustproof net.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high and low temperature test box with double closed-loop control of temperature and humidity, comprising a test box body, a top plate is arranged on the top of the test box body, a refrigeration system and a humidification system are arranged at the bottom and top of the left side of the test box body, respectively, a ventilation cavity is arranged at the bottom of the test box body, and a cleaning structure is arranged at the bottom of the front end of the test box body;

[0007] The easy-to-clean structure includes a connecting rod, a dustproof net and a protective shell. Dustproof nets are provided on both sides of the bottom of the front end of the test box body. The bottom of the front end of the test box body is fixedly connected to the protective shell. A servo motor is installed at the top of the inside of the protective shell. The output end of the servo motor is fixedly connected to a threaded rod. The top of the outside of the threaded rod is provided with a threaded sleeve. Connecting rods are fixedly connected on both sides of the threaded sleeve. A cleaning plate is installed at the rear end of the connecting rod. The bottom of the front end of the test box body is fixedly connected to a frame. A storage drawer is provided inside the frame, and a handle is fixedly connected to the front end of the storage drawer.

[0008] Preferably, a box door is installed on the top of the front end of the test box body, a control panel is installed on the top of the right side of the front end of the test box body, a heating wire is installed on the top of the ventilation cavity, and a hair dryer is installed on the bottom of the ventilation cavity.

[0009] Preferably, the threaded sleeve and the protective shell cooperate with each other, and the cleaning plate is arranged at the front end of the protective shell.

[0010] Preferably, the connecting rods slide on both sides inside the protective shell, and two groups of connecting rods are provided.

[0011] Preferably, casters are installed at the four corners of the bottom end of the test box body, a hydraulic cylinder is installed at the bottom end of the ventilation cavity, and a bottom plate is installed at the bottom end of the hydraulic cylinder.

[0012] Preferably, the hydraulic cylinder passes through the bottom end of the interior of the test box body, and a protective pad is installed at the bottom end of the bottom plate.

[0013] Preferably, a support plate is installed on the left side of the test box body, an exhaust fan is installed on the top of the support plate, the output end and input end of the exhaust fan are respectively fixedly connected with connecting pipes, a filter screen is fixedly connected to the left side inside the top plate, an air outlet is installed on the left side of the top of the test box body, and a solenoid valve is provided at the front end of the air outlet.

[0014] Preferably, the bottom end and the top end of the connecting pipe penetrate the interior of the top plate and the ventilation cavity respectively, and the filter screen is arranged on the right side of the top end of the connecting pipe.

[0015] Compared with the prior art, the utility model has the following beneficial effects: the high and low temperature test chamber with double closed-loop control of temperature and humidity not only makes it easy to clean the dustproof net and improve the stability of the test chamber, but also makes it easy to circulate the hot air;

[0016] (1) A connecting rod, a frame, a handle, a threaded rod, a cleaning plate, a threaded sleeve and a servo motor are provided. The servo motor drives the threaded rod to rotate. Since the threaded rod and the threaded sleeve cooperate with each other and the connecting rod is installed on both sides of the threaded sleeve, the rotation of the threaded rod can make the threaded sleeve drive the cleaning plate to rise and fall through the connecting rod, so that the cleaning plate can clean the front end of the dustproof net to prevent the filter holes inside the dustproof net from being blocked by impurities. The cleaned impurities will fall inside the box door, so that it is convenient to uniformly handle the impurities;

[0017] (2) By providing casters, hydraulic cylinders, bottom plates and protective pads, the casters can facilitate the movement of the test box body to a suitable position. After the test box body is moved to a suitable position, the hydraulic cylinder is started, and the hydraulic cylinder drives the bottom plate and the protective pad to descend, so that the bottom plate can be placed against the top of the ground to prevent the casters from accidentally driving the test box body to move;

[0018] (3) By providing an exhaust fan, a connecting pipe, a filter, a solenoid valve and an air outlet, the solenoid valve is opened, and the hot air is discharged to the inside of the top plate through the air outlet. The exhaust fan is started, and the exhaust fan draws the hot air from the top plate into the inside of the ventilation cavity through the connecting pipe, and then enters the top of the inside of the test chamber body, so that the temperature can be recycled. The filter can filter the gas to prevent impurities from entering the inside of the connecting pipe and causing the connecting pipe to be blocked by impurities. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a front view structural schematic diagram of the utility model;

[0020] Figure 2 It is a front view cross-sectional structural schematic diagram of the utility model;

[0021] Figure 3 It is a side-view enlarged structural schematic diagram of the protective shell of the utility model;

[0022] Figure 4 For the utility model Figure 1 Schematic diagram of the enlarged cross-section structure at point A in the middle.

[0023] In the figure: 1. Test box body; 2. Exhaust fan; 3. Connecting pipe; 4. Box door; 5. Top plate; 6. Control panel; 7. Connecting rod; 8. Dust net; 9. Protective shell; 10. Casters; 11. Frame; 12. Hydraulic cylinder; 13. Handle; 14. Storage drawer; 15. Bottom plate; 16. Protective pad; 17. Ventilation chamber; 18. Blower; 19. Heating wire; 20. Filter; 21. Solenoid valve; 22. Air outlet; 23. Refrigeration system; 24. Humidification system; 25. Threaded rod; 26. Cleaning plate; 27. Threaded sleeve; 28. Servo motor; 29. ​​Support plate. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Example 1: Please refer to Figure 1-4 A high and low temperature test chamber with double closed-loop control of temperature and humidity, comprising a test chamber body 1, a top plate 5 is arranged at the top of the test chamber body 1, a refrigeration system 23 and a humidification system 24 are arranged at the bottom and top of the left side of the test chamber body 1, a ventilation cavity 17 is arranged at the bottom of the test chamber body 1, and a cleaning structure is arranged at the bottom of the front end of the test chamber body 1;

[0026] The structure for easy cleaning includes a connecting rod 7, a dustproof net 8 and a protective shell 9. The dustproof net 8 is arranged on both sides of the bottom of the front end of the test box body 1. The bottom of the front end of the test box body 1 is fixedly connected with the protective shell 9. The top of the inside of the protective shell 9 is installed with a servo motor 28. The output end of the servo motor 28 is fixedly connected with a threaded rod 25. The top of the outside of the threaded rod 25 is provided with a threaded sleeve 27. The two sides of the threaded sleeve 27 are fixedly connected with the connecting rod 7. The rear end of the connecting rod 7 is installed with a cleaning plate 26. The bottom of the front end of the test box body 1 is fixedly connected with a frame 11. The inside of the frame 11 is provided with a storage drawer 14. The front end of the storage drawer 14 is fixedly connected with a handle 13.

[0027] A box door 4 is installed at the top of the front end of the test box body 1, a control panel 6 is installed at the top of the right side of the front end of the test box body 1, a heating wire 19 is installed at the top of the ventilation cavity 17, a hair dryer 18 is installed at the bottom of the ventilation cavity 17, a threaded sleeve 27 and a protective shell 9 cooperate with each other, a cleaning plate 26 is arranged at the front end of the protective shell 9, a connecting rod 7 slides on both sides of the protective shell 9, and two groups of connecting rods 7 are arranged;

[0028] Specifically, Figure 1 and Figure 3 As shown, the servo motor 28 drives the threaded rod 25 to rotate. Since the threaded rod 25 and the threaded sleeve 27 cooperate with each other, and the connecting rod 7 is installed on both sides of the threaded sleeve 27, the rotation of the threaded rod 25 can make the threaded sleeve 27 drive the cleaning plate 26 to rise and fall through the connecting rod 7, so that the cleaning plate 26 can clean the front end of the dustproof net 8 to prevent the filter holes inside the dustproof net 8 from being blocked by impurities. The cleaned impurities will fall into the inside of the box door 4, thereby facilitating the unified treatment of impurities.

[0029] Embodiment 2: casters 10 are installed at the four corners of the bottom end of the test box body 1, a hydraulic cylinder 12 is installed at the bottom end of the ventilation cavity 17, a bottom plate 15 is installed at the bottom end of the hydraulic cylinder 12, the hydraulic cylinder 12 passes through the bottom end of the inside of the test box body 1, and a protective pad 16 is installed at the bottom end of the bottom plate 15;

[0030] Specifically, Figure 1 and Figure 2 As shown, the caster 10 can facilitate the movement of the test box body 1 to a suitable position. After moving to the suitable position, the hydraulic cylinder 12 is started, and the hydraulic cylinder 12 drives the bottom plate 15 and the protective pad 16 to descend, so that the bottom plate 15 can be rested on the top of the ground for limiting, preventing the caster 10 from accidentally driving the test box body 1 to move.

[0031] Embodiment 3: A support plate 29 is installed on the left side of the test box body 1, and an exhaust fan 2 is installed on the top of the support plate 29. The output end and the input end of the exhaust fan 2 are respectively fixedly connected with a connecting pipe 3, and the left side of the top plate 5 is fixedly connected with a filter 20. An air outlet 22 is installed on the left side of the top of the test box body 1, and a solenoid valve 21 is arranged at the front end of the air outlet 22. The bottom end and the top end of the connecting pipe 3 pass through the top plate 5 and the inside of the ventilation cavity 17 respectively, and the filter 20 is arranged on the right side of the top end of the connecting pipe 3;

[0032] Specifically, Figure 1 , Figure 2 and Figure 4 As shown, the solenoid valve 21 is opened, and the hot air is discharged to the inside of the top plate 5 through the air outlet 22, and the exhaust fan 2 is started. The exhaust fan 2 draws the hot air from the top plate 5 into the inside of the ventilation cavity 17 through the connecting pipe 3, and then enters the top of the inside of the test box body 1, so that the temperature can be recycled. The filter 20 can filter the gas to prevent impurities from entering the inside of the connecting pipe 3 and causing the connecting pipe 3 to be blocked by impurities.

[0033] Working principle: When the utility model is in use, the caster 10 can facilitate the test box body 1 to move to a suitable position. After moving to a suitable position, the hydraulic cylinder 12 is started, and the hydraulic cylinder 12 drives the bottom plate 15 and the protective pad 16 to descend, so that the bottom plate 15 can be placed against the top of the ground to prevent the caster 10 from accidentally driving the test box body 1 to move. When the temperature inside the test box body 1 needs to be adjusted, the refrigeration system 23 and the heating wire 19 are turned on as needed. When the dust screen 8 needs to be cleaned, the servo motor 28 is started, and the servo motor 28 drives the threaded rod 25 to rotate. The rotation of the threaded rod 25 can make the threaded sleeve 2 7 drives the cleaning plate 26 to rise and fall through the connecting rod 7, so that the cleaning plate 26 can clean the front end of the dustproof net 8 to prevent the filter holes inside the dustproof net 8 from being blocked by impurities. The cleaned impurities will fall into the inside of the box door 4, open the solenoid valve 21, and the hot air is discharged to the inside of the top plate 5 through the air outlet 22. The exhaust fan 2 is started, and the exhaust fan 2 extracts the hot air from the top plate 5 into the inside of the ventilation cavity 17 through the connecting pipe 3, and then enters the top of the inside of the test box body 1, so that the temperature can be recycled. The filter net 20 can filter the gas to prevent impurities from entering the inside of the connecting pipe 3 and causing the connecting pipe 3 to be blocked by impurities.

[0034] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A high and low temperature test chamber with double closed-loop control of temperature and humidity, comprising a test chamber body (1), characterized in that: The top of the test box body (1) is provided with a top plate (5), the bottom and top of the left side of the inside of the test box body (1) are respectively provided with a refrigeration system (23) and a humidification system (24), the bottom of the inside of the test box body (1) is provided with a ventilation cavity (17), and the bottom of the front end of the test box body (1) is provided with a structure for facilitating cleaning; The structure for facilitating cleaning comprises a connecting rod (7), a dustproof net (8) and a protective shell (9). The dustproof net (8) is arranged on both sides of the bottom of the front end of the test box body (1). The bottom of the front end of the test box body (1) is fixedly connected to the protective shell (9). A servo motor (28) is installed at the top of the inside of the protective shell (9). The output end of the servo motor (28) is fixedly connected to a threaded rod (25). The top of the outside of the threaded rod (25) is provided with a threaded sleeve (27). The two sides of the threaded sleeve (27) are fixedly connected to the connecting rod (7). A cleaning plate (26) is installed at the rear end of the connecting rod (7). The bottom of the front end of the test box body (1) is fixedly connected to a frame (11). A storage drawer (14) is arranged inside the frame (11). The front end of the storage drawer (14) is fixedly connected to a handle (13).

2. A high and low temperature test chamber with double closed-loop control of temperature and humidity according to claim 1, characterized in that: A box door (4) is installed at the top of the front end of the test box body (1), a control panel (6) is installed at the top of the right side of the front end of the test box body (1), a heating wire (19) is installed at the top of the ventilation cavity (17), and a hair dryer (18) is installed at the bottom of the ventilation cavity (17).

3. A high and low temperature test chamber with double closed-loop control of temperature and humidity according to claim 1, characterized in that: The threaded sleeve (27) and the protective shell (9) cooperate with each other, and the cleaning plate (26) is arranged at the front end of the protective shell (9).

4. A high and low temperature test chamber with double closed-loop control of temperature and humidity according to claim 1, characterized in that: The connecting rods (7) slide on both sides inside the protective shell (9), and two groups of connecting rods (7) are provided.

5. A high and low temperature test chamber with temperature and humidity double closed-loop control according to claim 1, characterized in that: Casters (10) are installed at the four corners of the bottom end of the test box body (1), a hydraulic cylinder (12) is installed at the bottom end of the ventilation cavity (17), and a bottom plate (15) is installed at the bottom end of the hydraulic cylinder (12).

6. A high and low temperature test chamber with double closed-loop control of temperature and humidity according to claim 5, characterized in that: The hydraulic cylinder (12) passes through the bottom end of the test box body (1), and a protective pad (16) is installed at the bottom end of the bottom plate (15).

7. A high and low temperature test chamber with double closed-loop control of temperature and humidity according to claim 1, characterized in that: A support plate (29) is installed on the left side of the test box body (1), an exhaust fan (2) is installed on the top of the support plate (29), the output end and input end of the exhaust fan (2) are respectively fixedly connected to connecting pipes (3), a filter screen (20) is fixedly connected to the left side of the inside of the top plate (5), an air outlet (22) is installed on the left side of the top of the test box body (1), and a solenoid valve (21) is provided at the front end of the air outlet (22).

8. A high and low temperature test chamber with double closed-loop control of temperature and humidity according to claim 7, characterized in that: The bottom end and the top end of the connecting pipe (3) respectively penetrate the interior of the top plate (5) and the ventilation cavity (17), and the filter screen (20) is arranged on the right side of the top end of the connecting pipe (3).

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