Constant temperature and humidity chamber with stable temperature

Abstract

The utility model discloses a constant-temperature and constant-humidity chamber with stable temperature. The constant-temperature and constant-humidity chamber comprises a test chamber, a partition plate, a heat conduction plate, a ventilation opening, an anti-explosion net, a graphite heat conduction strip, a heating wire, an evaporator, a condenser, a water tank, a shell, a guide pipe, a mounting seat, a first fan, a mounting sleeve, a first humidifier and a second humidifier, the test box structure with indirect heat conduction is designed, the test environment and the temperature adjusting structure are separated through the heat conduction structure, temperature adjustment is prevented from being too violent, the situation that a system repeatedly switches working modes due to over-adjustment is avoided, meanwhile, circulating airflow is formed in the space through the fan, temperature uniformity is guaranteed, and the test efficiency is improved. By means of the multifunctional humidifying structure, the humidifying mode can be selected according to the experimental environment, the second humidifier is used for humidifying under the high-temperature condition, the supercooled steam is generated through ultrasonic waves to heat the interior of the test box under the low-temperature condition, the influence on the temperature in the test box is reduced, and the test box is more stable.

Description

Technical Field

[0001] This utility model relates to the field of constant temperature and humidity chamber technology, and in particular to a constant temperature and humidity chamber with stable temperature. Background Technology

[0002] A constant temperature and humidity chamber is a device specifically designed for quality testing of various products. Its core function is to test the tolerance of materials under different temperature and humidity conditions, providing accurate data support for tests such as heat resistance, cold resistance, dryness resistance, and moisture resistance. It is widely used in many fields such as electronics, plastics, electrical appliances, instruments, food, vehicles, metals, chemicals, building materials, aerospace, and medical. As a multifunctional experimental device, it plays an important role in modern scientific research and production. By simulating different temperature and humidity environments, it provides accurate performance test data for various materials and products, providing strong support for scientific research and production.

[0003] Existing temperature and humidity chambers have the following drawbacks: First, temperature and humidity chambers require high temperature stability. Existing chambers directly regulate the temperature inside the chamber through heating and cooling devices. The adjustment rate is too fast, making it difficult to accurately control temperature changes and easily leading to over-regulation. This causes the system to repeatedly start up for compensation and adjustment, and the temperature distribution inside the chamber is uneven. Second, using steam humidification increases the heat inside the chamber, which is not conducive to temperature control. There is a lack of a humidity adjustment structure that has less impact on the control of the internal environment. Utility Model Content

[0004] The purpose of this invention is to provide a temperature-stable constant temperature and humidity chamber to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a temperature-stable constant temperature and humidity chamber, including an outer shell, a test chamber is arranged inside the outer shell, a partition and a heat-conducting plate are fixedly connected to the inner wall of the test chamber, graphite heat-conducting strips are arranged on the outer walls of both sides of the heat-conducting plate, a bracket is arranged on one side of the heat-conducting plate, a heating wire is fixedly connected to the bracket, an evaporator is arranged at the bottom end of the heating wire, a second fan is arranged at the top end of the heating wire, and the bracket, evaporator and second fan are all fixedly connected to the inner wall of the test chamber. A ventilation opening is opened on the heat-conducting plate, and a shell is arranged on one side of the test chamber.

[0006] As a further technical solution of this utility model, an installation sleeve is fixedly connected inside the housing, and a first humidifier and a second humidifier are fixedly connected inside the installation sleeve. An ultrasonic generator is fixedly connected inside the first humidifier, and a first water storage chamber is provided at the top of the ultrasonic generator, and the first water storage chamber is located inside the first humidifier.

[0007] As a further technical solution of this utility model, a heater is fixedly connected inside the second humidifier, a second water storage chamber is provided at the top of the heater, and the second water storage chamber is located inside the second humidifier. An exhaust port is conductively connected to one side of the outer wall of both the first water storage chamber and the second water storage chamber. A conduit is conductively connected to the shell, and the conduit is conductively connected to the test chamber.

[0008] As a further technical solution of this utility model, a mounting base is provided on one outer wall of the housing, and a first fan is fixedly connected to the mounting base.

[0009] As a further technical solution of this utility model, an explosion-proof mesh is fixedly connected to the inner wall of the test chamber, and a door is hinged to one side of the outer wall of the outer shell, with a door lock provided on one side of the outer wall of the door.

[0010] As a further technical solution of this utility model, a condenser and a water tank are fixedly connected to the inner wall of the outer shell, and a front glass is provided on one side of the outer wall of the door.

[0011] As a further technical solution of this utility model, a fan cover is fixedly connected to the upper surface of the outer shell at the position corresponding to the second fan, a touch screen is provided on one side of the outer wall of the outer shell, and a caster wheel is fixedly connected to the lower surface of the outer shell.

[0012] Compared with the prior art, the beneficial effects achieved by this utility model are as follows: This utility model is designed with an indirect heat-conducting test chamber structure. The heat-conducting structure separates the test environment from the temperature adjustment structure, preventing excessive temperature adjustment and avoiding over-adjustment that causes the system to repeatedly switch working modes. At the same time, a fan forms a circulating airflow in the space to ensure uniform temperature. Through a multi-functional humidification structure, the humidification method can be selected according to the experimental environment. When under high temperature conditions, humidification is carried out through a second humidifier. When under low temperature conditions, supercooled steam is generated by ultrasound to heat the test chamber, reducing the impact on the temperature inside the test chamber and making it more stable. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the overall rear view structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the overall frontal sectional structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the overall side view and cross-section structure of this utility model;

[0018] Figure 5 This is a schematic diagram of the overall rear-view sectional structure of this utility model;

[0019] Figure 6 This is a three-dimensional structural diagram of the shell of this utility model;

[0020] Figure 7 This is a front sectional view of the shell of this utility model;

[0021] Figure 8 This is a side view sectional diagram of the shell of this utility model.

[0022] In the diagram: 1. Outer shell; 2. Door; 3. Front glass; 4. Casters; 5. Door lock; 6. Touch screen; 7. Test chamber; 8. Partition; 9. Heat-conducting plate; 10. Ventilation opening; 11. Explosion-proof mesh; 12. Graphite heat-conducting strip; 13. Bracket; 14. Heating wire; 15. Evaporator; 16. Condenser; 17. Water tank; 18. Shell; 19. Pipe; 20. Mounting base; 21. First fan; 22. Mounting sleeve; 23. First humidifier; 24. Ultrasonic generator; 25. First water storage chamber; 26. Second humidifier; 27. Heater; 28. Second water storage chamber; 29. ​​Exhaust port; 30. Second fan; 31. Fan cover. Detailed Implementation

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

[0024] Please see Figure 1-8This utility model provides an embodiment of a temperature-stable constant temperature and humidity chamber, comprising an outer shell 1, a test chamber 7 disposed inside the outer shell 1, a partition 8 and a heat-conducting plate 9 fixedly connected to the inner wall of the test chamber 7, graphite heat-conducting strips 12 disposed on the outer walls of both sides of the heat-conducting plate 9, a bracket 13 disposed on one side of the heat-conducting plate 9, a heating wire 14 fixedly connected to the bracket 13, an evaporator 15 disposed at the bottom end of the heating wire 14, and a second fan 30 disposed at the top end of the heating wire 14. The bracket 13, the evaporator 15 and the second fan 30 are all fixedly connected to the inner wall of the test chamber 7, and a passage is provided on the heat-conducting plate 9. A shell 18 is provided on one side of the test chamber 7, with an air vent 10. A mounting sleeve 22 is fixedly connected inside the shell 18. A first humidifier 23 and a second humidifier 26 are fixedly connected inside the mounting sleeve 22. An ultrasonic generator 24 is fixedly connected inside the first humidifier 23. A first water storage chamber 25 is provided at the top of the ultrasonic generator 24 and is located inside the first humidifier 23. The mounting sleeve 22 is used to install the first humidifier 23 and the second humidifier 26. The ultrasonic generator 24 is used to generate high-frequency mechanical vibration to atomize the water. A heater 27 is fixedly connected inside the second humidifier 26. The heater 27 has a second water storage chamber 28 at its top, which is located inside the second humidifier 26. Both the first water storage chamber 25 and the second water storage chamber 28 have exhaust ports 29 connected to one side of their outer walls. A conduit 19 is connected to the housing 18 and is connected to the test chamber 7. The heater 27 heats the water in the second water storage chamber 28 to generate steam. A mounting base 20 is located on one side of the housing 18, and a first fan 21 is fixedly connected to the mounting base 20. The first fan 21 transports the steam through the conduit 19 into the test chamber 7. An explosion-proof mesh 11 is fixedly connected to the inner wall. A door 2 is hinged to one side of the outer wall of the outer shell 1. A door lock 5 is installed on one side of the outer wall of the door 2. The explosion-proof mesh 11 is used for explosion protection. A condenser 16 and a water tank 17 are fixedly connected to the inner wall of the outer shell 1. A front glass 3 is installed on one side of the outer wall of the door 2. The front glass 3 is used to observe the test situation. A fan cover 31 is fixedly connected to the upper surface of the outer shell 1 at the position corresponding to the second fan 30. A touch screen 6 is installed on one side of the outer wall of the outer shell 1. A caster wheel 4 is fixedly connected to the lower surface of the outer shell 1. The touch screen 6 is used to set test parameters, and the caster wheel 4 is used to move equipment.

[0025] Working Principle: When using this invention for constant temperature and humidity testing, first open the chamber door 2 on the outer casing 1 using the door lock 5, place the test item on the partition 8 inside the test chamber 7, then close the chamber door 2. Set the various test parameters via the touch screen 6. During the test, the heating wire 14 on the bracket 13 raises the ambient temperature, and the evaporator 15 converts the refrigerant into a gaseous state, absorbing heat to lower the ambient temperature. Then, the compressor draws in the low-pressure steam from the evaporator 15, compresses it into high-temperature, high-pressure steam, and discharges it into the condenser 16 for condensation. The resulting condensate is stored in the water tank 17. The temperature difference generated is transferred through the graphite heat-conducting strip 12 on the heat-conducting plate 9 to regulate the ambient temperature inside the test chamber 7. A circulating airflow is formed by the second fan 30 and enters the test side through the vent 10 to equalize the overall temperature in the environment. When in a high-temperature environment, the second humidifier 26 in the sleeve 22 inside the housing 18 is activated for heating. The heater 27 evaporates the water in the second water storage chamber 28 into steam, which is discharged through the exhaust port 29. Under the action of the first fan 21, the steam enters the test chamber 7 through the conduit 19. When in a low-temperature environment, humidification is achieved by the first humidifier 23. The ultrasonic generator 24 generates high-frequency mechanical vibration, which is transmitted to the atomizing plate. Through resonance, the water in the first water storage chamber 25 is refined into water mist, which is discharged through the exhaust port 29. Under the action of the first fan 21, the water enters the test chamber 7 through the conduit 19, thus achieving the humidification function. The front glass 3 is used to observe the situation inside the test chamber 7, the casters 4 are used for moving the equipment, the explosion-proof net 11 is used for explosion protection, the mounting base 20 is used to install the first fan 21, and the fan cover 31 is used to protect the second fan 30.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A temperature-stable constant temperature and humidity chamber, comprising an outer shell (1), characterized in that: The outer shell (1) is equipped with a test chamber (7). A partition (8) and a heat-conducting plate (9) are fixedly connected to the inner wall of the test chamber (7). Graphite heat-conducting strips (12) are provided on the outer walls of both sides of the heat-conducting plate (9). A bracket (13) is provided on one side of the heat-conducting plate (9). A heating wire (14) is fixedly connected to the bracket (13). An evaporator (15) is provided at the bottom of the heating wire (14). A second fan (30) is provided at the top of the heating wire (14). The bracket (13), the evaporator (15), and the second fan (30) are all fixedly connected to the inner wall of the test chamber (7). A vent (10) is provided on the heat-conducting plate (9). A shell (18) is provided on one side of the test chamber (7).

2. The temperature-stable constant temperature and humidity chamber according to claim 1, characterized in that: An installation sleeve (22) is fixedly connected inside the housing (18). A first humidifier (23) and a second humidifier (26) are fixedly connected inside the installation sleeve (22). An ultrasonic generator (24) is fixedly connected inside the first humidifier (23). A first water storage chamber (25) is provided at the top of the ultrasonic generator (24), and the first water storage chamber (25) is located inside the first humidifier (23).

3. The temperature-stable constant temperature and humidity chamber according to claim 2, characterized in that: A heater (27) is fixedly connected inside the second humidifier (26). A second water storage chamber (28) is provided at the top of the heater (27) and is located inside the second humidifier (26). An exhaust port (29) is connected to one side of the outer wall of the first water storage chamber (25) and the second water storage chamber (28). A conduit (19) is connected to the shell (18) and is connected to the test chamber (7).

4. The temperature-stable constant temperature and humidity chamber according to claim 2, characterized in that: A mounting base (20) is provided on one outer wall of the housing (18), and a first fan (21) is fixedly connected to the mounting base (20).

5. A temperature-stable constant temperature and humidity chamber according to claim 1, characterized in that: An explosion-proof mesh (11) is fixedly connected to the inner wall of the test chamber (7), and a door (2) is hinged to one side of the outer wall of the outer shell (1). A door lock (5) is provided on one side of the outer wall of the door (2).

6. The temperature-stable constant temperature and humidity chamber according to claim 1, characterized in that: A condenser (16) and a water tank (17) are fixedly connected to the inner wall of the outer casing (1), and a front glass (3) is provided on one side of the outer wall of the door (2).

7. A temperature-stable constant temperature and humidity chamber according to claim 1, characterized in that: A fan cover (31) is fixedly connected to the upper surface of the outer shell (1) at the position corresponding to the second fan (30). A touch screen (6) is provided on one side of the outer wall of the outer shell (1). A caster wheel (4) is fixedly connected to the lower surface of the outer shell (1).

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