A temperature and humidity control device for a constant temperature and humidity testing machine

Abstract

This utility model discloses a temperature and humidity control device for a constant temperature and humidity test chamber, including a test chamber body. A fixed frame is sleeved on the inner wall of the test chamber body. Several sets of baffles are rotatably connected to the inner wall of the fixed frame. A transmission component is sleeved on one end of each baffle. A connecting joint is sleeved on the inner bottom wall of the test chamber body. A branch pipe is connected through the top of the connecting joint. A diffusion component is connected through the top of the branch pipe. The transmission component includes a gear ring sleeved on one end of each baffle. This temperature and humidity control device for a constant temperature and humidity test chamber, through the setting of the transmission component and baffles, achieves the effect of adjusting the direction and position of hot air, effectively avoiding local temperature accumulation or dead zones. At the same time, based on the temperature detected by the temperature and humidity sensor, the data is fed back to the integrated controller. The integrated controller controls the exhaust fan speed and the baffle angle, enabling rapid response to changes in temperature and humidity setpoints, reducing system fluctuations, and improving dynamic balance efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of temperature and humidity control devices, specifically to a temperature and humidity control device for a constant temperature and humidity test chamber. Background Technology

[0002] A constant temperature and humidity test chamber is a performance testing device used to simulate the conditions of objects under specific environmental conditions. It is widely used in environmental testing in industries such as electronics, electrical appliances, automobiles, materials, pharmaceuticals, and cosmetics. Its temperature and humidity control device is the core of the equipment, capable of precisely adjusting the ambient temperature and humidity to ensure testing is conducted within specified ranges. Through precise temperature and humidity control, advanced sensor technology, and a highly efficient air circulation system, the temperature and humidity control device of the constant temperature and humidity test chamber can provide simulated environmental testing for various products, ensuring their reliability and stability under different temperature and humidity conditions.

[0003] However, the existing temperature and humidity control devices for constant temperature and humidity test chambers are difficult to adjust the direction and position of the hot air during use, which can easily cause local temperature accumulation or dead zones. Furthermore, they cannot respond quickly to changes in temperature and humidity setpoints, which increases system fluctuations and reduces dynamic balance efficiency. Utility Model Content

[0004] The technical problem to be solved by this utility model is as follows: to provide a temperature and humidity control device for a constant temperature and humidity test chamber that is highly practical, easy to operate, and has a simple structure. This solves the problems mentioned in the background art, such as the difficulty in effectively adjusting the direction and position of the hot air flow when using existing temperature and humidity control devices for constant temperature and humidity test chambers, which easily causes local temperature accumulation or dead zones, and the inability to quickly respond to changes in temperature and humidity set values, which increases system fluctuations and reduces dynamic balance efficiency.

[0005] The objective of this utility model can be achieved through the following technical solutions:

[0006] A temperature and humidity control device for a constant temperature and humidity testing machine includes a testing machine body. A fixed frame is fitted onto the inner wall of the testing machine body. Several sets of baffles are rotatably connected to the inner wall of the fixed frame. A transmission component is fitted onto one end of each baffle. A connecting joint is fitted onto the inner bottom wall of the testing machine body. A branch pipe is connected through the top of the connecting joint. A diffusion component is connected through the top of the branch pipe. The transmission component includes a gear ring fitted onto one end of the baffle, and a rack belt meshes on the surface of the gear ring. The diffusion component includes a connecting pipe connected through the top of the branch pipe. A rotating cap is rotatably connected to the top of the connecting pipe. Four sets of diffusion pipes are connected through the surface of the rotating cap in a ring array.

[0007] As a further embodiment of this utility model: a heating plate is provided inside the fixed frame, and several sets of electric heating rods are provided inside the heating plate. Several sets of through holes are opened on the surface of the diffuser tube. The through holes facilitate the discharge of steam.

[0008] As a further embodiment of this utility model: a support shell is fixedly connected to one side of the heating plate, and three sets of exhaust fans are sleeved inside the support shell. The exhaust fans are designed to drive hot air out.

[0009] As a further embodiment of this utility model: one end of one set of the baffles is fixedly connected to a drive motor, and a motor housing is sleeved on the surface of the drive motor. The motor housing serves to protect the drive motor.

[0010] As a further embodiment of this utility model: a conveying pipe is connected through the bottom of the connecting joint, and a storage box is connected through one end of the conveying pipe. A heating shallow water tray is provided at the bottom of the storage box. The heating shallow water tray serves to heat the liquid water in the storage box.

[0011] As a further embodiment of this utility model: a temperature and humidity sensor is provided on the inner wall of the testing machine body, and one end of the temperature and humidity sensor is electrically connected to an integrated controller through a power line. The integrated controller is configured to receive and process the information transmitted by the temperature and humidity sensor.

[0012] As a further embodiment of this utility model: a door is hinged to the front of the testing machine body, and a drawer is slidably connected to one side of the bottom of the testing machine body. The storage box is mounted on the top of the drawer, and the drawer facilitates the pulling of the storage box.

[0013] The beneficial effects of this utility model are:

[0014] 1. The temperature and humidity control device of this constant temperature and humidity test chamber, through the setting of transmission components and baffles, heats the surrounding air through a heating plate during use, and uses an exhaust fan to blow out the hot air. Then, according to the required airflow direction, the drive motor is started to drive one set of baffles to rotate. The baffles then drive a set of gear rings, and the rack belt drives other gear rings and baffles to rotate synchronously, thereby achieving the effect of adjusting the hot airflow direction and position. This can effectively avoid local temperature accumulation or dead zones. At the same time, the temperature and humidity sensors detect the temperature and feed it back to the integrated controller. The integrated controller controls the exhaust fan speed and the baffle angle, which can quickly respond to changes in temperature and humidity setpoints, reduce system fluctuations, and improve dynamic balance efficiency.

[0015] 2. The temperature and humidity control device of this constant temperature and humidity test chamber, through the setting of diffusion components and branch pipes, heats the liquid water in the storage tank by heating the shallow water pan during use, and then the steam enters the delivery pipe and reaches the connecting joint and branch pipe. The steam flow drives the rotating cap to rotate and is discharged from the through hole on the diffusion pipe, thereby accelerating the diffusion rate of steam. This mechanical disturbance mechanism can break the phenomenon of local steam accumulation, ensure the uniformity of humidity distribution in the test chamber, and avoid humidity stratification problems caused by steam precipitation. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the disassembled structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the transmission component and baffle structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the storage box structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the diffusion component structure of this utility model.

[0022] In the diagram: 1. Test machine body; 2. Fixing frame; 3. Baffle; 4. Transmission assembly; 401. Gear ring; 402. Rack and pinion belt; 5. Connecting joint; 6. Branch pipe; 7. Diffusion assembly; 701. Connecting pipe; 702. Rotating cap; 703. Diffusion pipe; 8. Heating plate; 9. Support shell; 10. Exhaust fan; 11. Drive motor; 12. Motor housing; 13. Conveying pipe; 14. Storage box; 15. Heated shallow water tray; 16. Temperature and humidity sensor; 17. Integrated controller; 18. Box door; 19. Drawer. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0024] like Figure 1-5As shown, a temperature and humidity control device for a constant temperature and humidity test chamber includes a test chamber body 1. A fixed frame 2 is sleeved on the inner wall of the test chamber body 1. Several sets of baffles 3 are rotatably connected to the inner wall of the fixed frame 2. A transmission component 4 is sleeved on one end of each baffle 3. Through the arrangement of the transmission component 4 and the baffles 3, the direction and position of the hot air can be adjusted, which can effectively avoid local temperature accumulation or dead zones. At the same time, the temperature detected by the temperature and humidity sensor 16 is fed back to the integrated controller 17. The integrated controller 17 controls the wind speed of the exhaust fan 10 and the angle of the baffles 3, which can quickly respond to changes in the temperature and humidity setpoints, reduce system fluctuations, and improve dynamic balance efficiency. A connecting joint 5 is sleeved on the inner bottom wall of the test chamber body 1. The top of the connecting joint 5 is connected to a branch pipe 6, and the top of the branch pipe 6 is connected to a diffusion component 7. The diffusion component 7 and the branch pipe 6 are designed to accelerate the diffusion rate of steam. This mechanical disturbance mechanism can break the local accumulation of steam, ensure the uniformity of humidity distribution in the test chamber, and avoid humidity stratification caused by steam precipitation. The transmission component 4 includes a gear ring 401 sleeved on one end of the baffle 3. The surface of the gear ring 401 is meshed with a rack belt 402. The diffusion component 7 includes a connecting pipe 701 connected to the top of the branch pipe 6. The top of the connecting pipe 701 is rotatably connected to a rotating cap 702. The surface of the rotating cap 702 is arranged in a ring array and connected to four sets of diffusion pipes 703.

[0025] like Figure 3 As shown, a heating plate 8 is provided inside the fixed frame 2, and several sets of electric heating rods are provided inside the heating plate 8. Several sets of through holes are opened on the surface of the diffuser tube 703. The through holes facilitate the discharge of steam.

[0026] like Figure 3 As shown, a support shell 9 is fixedly connected to one side of the heating plate 8. Three sets of exhaust fans 10 are fitted inside the support shell 9. The exhaust fans 10 are used to drive hot air out.

[0027] like Figure 3 As shown, one end of one set of baffles 3 is fixedly connected to a drive motor 11, and a motor housing 12 is sleeved on the surface of the drive motor 11. The motor housing 12 serves to protect the drive motor 11.

[0028] like Figure 4 As shown, a conveying pipe 13 is connected to the bottom of the connecting joint 5, and a storage tank 14 is connected to one end of the conveying pipe 13. A heating shallow water tray 15 is provided at the bottom of the storage tank 14. The heating shallow water tray 15 is used to heat the liquid water in the storage tank 14.

[0029] like Figure 2As shown, a temperature and humidity sensor 16 is installed on the inner wall of the test machine body 1. One end of the temperature and humidity sensor 16 is electrically connected to an integrated controller 17 via a power cord. The integrated controller 17 is configured to receive and process the information transmitted by the temperature and humidity sensor 16.

[0030] like Figure 1 As shown, the front of the testing machine body 1 is hinged with a door 18, and a drawer 19 is slidably connected to one side of the bottom of the testing machine body 1. The storage box 14 is mounted on the top surface of the drawer 19. The drawer 19 facilitates the pulling of the storage box 14.

[0031] The temperature and humidity sensor 16 is model number HMD82-EP; the integrated controller 17 is model number KS-350CT-I1. The above parameters and models can be selected according to the actual situation.

[0032] The working principle of this utility model is as follows: When in use, the heating plate 8 heats the surrounding air, and the exhaust fan 10 blows out the hot air. Then, according to the required wind direction and position, the drive motor 11 is started to drive one of the baffles 3 to rotate. The baffles 3 drive a set of gear rings 401, and the rack belt 402 drives the other gear rings 401 and the baffles 3 to rotate synchronously. When in use, the heating shallow water plate 15 heats and evaporates the liquid water in the storage tank 14. Then, the steam enters the conveying pipe 13 and reaches the connecting joint 5 and the branch pipe 6 from the conveying pipe 13. Then, the steam water vapor flow drives the rotating cap 702 to rotate and is discharged from the through hole on the diffuser pipe 703.

[0033] It should be noted that the device structure and accompanying drawings of this utility model mainly describe the principle of this utility model. In terms of the technical aspects of this design principle, the setting of the power mechanism, power supply system and control system of the device is not fully described. However, under the premise that those skilled in the art understand the principle of the above utility model, the specific details of its power mechanism, power supply system and control system can be clearly understood. The control method in the application document is automatic control through a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming.

[0034] All standard parts used can be purchased from the market, and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A temperature and humidity control device for a constant temperature and humidity test chamber, comprising a test chamber body (1), characterized in that: The inner wall of the test machine body (1) is fitted with a fixed frame (2), and the inner wall of the fixed frame (2) is rotatably connected with several sets of baffles (3). One end of the baffle (3) is fitted with a transmission component (4). The inner bottom wall of the test machine body (1) is fitted with a connecting joint (5), and the top of the connecting joint (5) is connected to a branch pipe (6). The top of the branch pipe (6) is connected to a diffusion component (7). The transmission assembly (4) includes a gear ring (401) sleeved on one end of the baffle (3), and a rack belt (402) meshes with the surface of the gear ring (401); The diffusion assembly (7) includes a connecting pipe (701) that extends through the top of the branch pipe (6). A rotating cap (702) is rotatably connected to the top of the connecting pipe (701). Four sets of diffusion pipes (703) are connected through the surface of the rotating cap (702) in a ring array.

2. The temperature and humidity control device for a constant temperature and humidity test chamber according to claim 1, characterized in that, The fixed frame (2) is provided with a heating plate (8) inside, and the heating plate (8) is provided with several sets of electric heating rods inside. The surface of the diffuser tube (703) is provided with several sets of through holes.

3. The temperature and humidity control device for a constant temperature and humidity test chamber according to claim 2, characterized in that, A support shell (9) is fixedly connected to one side of the heating plate (8), and three sets of exhaust fans (10) are sleeved inside the support shell (9).

4. The temperature and humidity control device for a constant temperature and humidity test chamber according to claim 1, characterized in that, One end of one of the baffles (3) is fixedly connected to a drive motor (11), and a motor housing (12) is fitted onto the surface of the drive motor (11).

5. The temperature and humidity control device for a constant temperature and humidity test chamber according to claim 1, characterized in that, The bottom of the connecting joint (5) is connected to a conveying pipe (13), one end of the conveying pipe (13) is connected to a storage box (14), and a heated shallow water tray (15) is provided at the bottom of the storage box (14).

6. The temperature and humidity control device for a constant temperature and humidity test chamber according to claim 1, characterized in that, The inner wall of the test machine body (1) is provided with a temperature and humidity sensor (16), and one end of the temperature and humidity sensor (16) is electrically connected to an integrated controller (17) via a power line.

7. The temperature and humidity control device for a constant temperature and humidity test chamber according to claim 5, characterized in that, The front of the test machine body (1) is hinged with a door (18), and a drawer (19) is slidably connected to one side of the bottom of the test machine body (1). The storage box (14) is mounted on the top surface of the drawer (19).

Images