Double-layer high and low temperature damp heat test box

Abstract

The utility model discloses a double-layer high and low temperature damp heat test box, and relates to the technical field of test boxes. The device comprises a test box, a test chamber is arranged on one side of the test box, a door frame corresponding to the test chamber is hinged to the test box, and an observation window is arranged on the peripheral side of the inner wall of the door frame; a lifting groove is formed in one side of the door frame and communicated with the test chamber, a fixing block is arranged on the upper side of the lifting groove, an adjusting groove is formed in the fixing block, a motor corresponding to the adjusting groove is arranged on one side of the door frame, a rotating rod is fixedly connected to an output shaft of the motor, and a first bevel gear is arranged on the peripheral side of the rotating rod. A second bevel gear meshed with the first bevel gear is arranged in the adjusting groove in a running fit mode. The bevel gear I and the bevel gear II are meshed, so that the motor is conveniently controlled to work to drive the screw rod to rotate, the mounting strip is controlled to slide up and down in a reciprocating manner, condensate water on the observation window is conveniently scraped by the scraper, and a worker can conveniently observe the test state of a product in the test box.

Description

Technical Field

[0001] This utility model belongs to the field of test chambers, specifically, it relates to a double-layer high and low temperature humidity test chamber. Background Technology

[0002] High and low temperature humidity test chambers are devices used for low temperature control. They are suitable for adaptability testing of electrical, electronic, instrumentation and other products, components and materials when stored, transported and used in high and low temperature alternating humidity and heat environments.

[0003] Chinese Patent No. CN217699227U discloses a high and low temperature humidity test chamber, comprising: a test chamber body, with cavities on the inner walls of both ends of the test chamber body, and an adjustment component inside each of the two cavities. The adjustment component includes two discs, with a limiting block on the top of each of the two discs, and an arc-shaped groove slidably connected to the outer wall of each of the two limiting blocks. A fixed column is rotatably connected inside each of the two cavities, and the fixed column is rotatably connected to the corresponding arc-shaped groove. One end of each of the two arc-shaped grooves extends through the cavity and into the interior of the test chamber body, and a connecting rod is fixedly connected thereto.

[0004] The high and low temperature humidity test chamber disclosed in the application has a layer of condensation on the inner wall of the observation window on the protective door when heating and humidifying, which makes the observation window blurry and makes it difficult for staff to clearly observe the test situation inside the test chamber and to understand the changes in the state of the test sample in a timely manner. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a double-layer high and low temperature humidity test chamber, which solves the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:

[0007] A double-layer high and low temperature humidity test chamber includes: a test chamber, a control panel on the front of the test chamber, multiple casters on the lower side of the test chamber, a test chamber on one side of the test chamber, a door frame corresponding to the test chamber hinged to it, the door frame being located on one side of the control panel, an observation window being installed on the inner wall of the door frame, and a handle being provided on one side of the door frame, the handle being located on one side of the test chamber.

[0008] A lifting groove is provided on one side of the door frame, which is connected to the test chamber. A fixed block is installed on the upper side of the lifting groove, located above the observation window. An adjustment groove is provided inside the fixed block. A motor corresponding to the adjustment groove is installed on one side of the door frame, which is located between the motor and the fixed block. A rotating rod is fixedly connected to the output shaft of the motor. The rotating rod passes horizontally through the door frame and the fixed block. A bevel gear one is installed around the rotating rod, which is rotatably engaged in the adjustment groove. A bevel gear two, which meshes with bevel gear one, is rotatably engaged in the adjustment groove. A screw is installed on the lower end face of bevel gear two, and the lower part of the screw extends to the outside of the fixed block. A water collection box is installed on the lower side of the lifting groove, and the lower end of the screw is rotatably engaged in the water collection box. A guide rod is installed between the lifting groove and the water collection box. The observation window is located between the screw and the guide rod. An installation strip is threaded around the screw. The guide rod passes vertically through the installation strip. A scraper corresponding to the observation window is installed on the installation strip, and the scraper abuts against the observation window.

[0009] Optionally, the test chamber is equipped with a hot air inlet, a humidification inlet, and a cold air inlet on the upper side. The humidification inlet is located between the hot air inlet and the cold air inlet. The hot air inlet, the humidification inlet, and the cold air inlet are all connected to the test chamber. Each of the hot air inlet, the humidification inlet, and the cold air inlet is equipped with a solenoid valve.

[0010] Optionally, a partition is installed between the two sides of the test chamber. The partition is installed on the side of the test chamber away from the door frame. The partition has multiple vertical vents that penetrate the partition.

[0011] Optionally, the upper side of the water collection box is provided with a slot corresponding to the screw, the lower end of the screw is rotatably fitted in the slot, and a water outlet pipe is connected to one side of the door frame. The water outlet pipe is connected to the inner cavity of the water collection box, and a solenoid valve is installed on the water outlet pipe.

[0012] Optionally, the scraper includes a strip plate snapped into the mounting strip, with an adhesive strip on one side of the strip plate that abuts against the observation window, and two pull rings on the other side of the strip plate.

[0013] Optionally, the mounting strip has a first channel and a second channel on both sides, which are connected. The height of the second channel is less than the height of the first channel. The strip plate is snapped into the first channel, and the adhesive strip passes through the second channel laterally. A baffle assembly is provided at the top of the mounting strip, and the strip plate and adhesive strip are located between the baffle assembly and the observation window.

[0014] Optionally, the baffle assembly includes a first insert rod located between two pull rings, a strip plate located between the first insert rod and the rubber strip, a knob mounted on the upper end face of the first insert rod, a first insertion hole corresponding to the first insert rod on the upper side of the mounting strip, the first insertion hole communicating with the first channel, a threaded opening corresponding to the first insert rod on the lower side of the channel, the lower end of the first insert rod being threaded into the threaded opening, a bearing mounted on one circumference of the first insert rod, a connecting plate mounted on one circumference of the bearing, a spring mounted between the connecting plate and the mounting strip, and the spring being sleeved on one circumference of the first insert rod.

[0015] Optionally, two insert rods are installed on the lower side of the connecting plate, with insert rod one located between the two insert rods two. The upper side of the mounting strip is provided with insert holes two corresponding to insert rods two, which are connected to the channel one. The lower side of the channel is provided with slots corresponding to insert rods two, with the lower end of insert rod two located in the slot.

[0016] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art. Of course, any product implementing the present invention does not necessarily need to achieve all of the following advantages at the same time:

[0017] The meshing of bevel gear one and bevel gear two facilitates the control of the motor to drive the screw rotation, thereby controlling the up-and-down sliding of the mounting strip. This allows the scraper to remove condensate from the observation window, making it easier for staff to observe the test status of the product inside the test chamber. At the same time, placing the motor outside the test chamber reduces the probability of damage to the motor caused by the internal environment. The guide rod restricts the sliding direction of the mounting strip, improving its stability during sliding. The water collection box facilitates the collection of condensate.

[0018] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0019] The accompanying drawings described below are merely some embodiments. Those skilled in the art can obtain other drawings based on these drawings without any creative effort.

[0020] In the picture:

[0021] Figure 1 This is a schematic diagram of the three-dimensional structure of the test chamber;

[0022] Figure 2 This is a schematic diagram of the cross-sectional structure of the test chamber;

[0023] Figure 3 This is a schematic diagram of the three-dimensional structure of the baffle assembly;

[0024] Figure 4 This is a schematic diagram of the cross-sectional structure of the fixed block.

[0025] The attached diagram lists the components represented by each number as follows:

[0026] Test chamber 1, casters 2, door frame 3, observation window 4, fixing block 5, motor 6, bevel gear 1 7, bevel gear 2 8, screw 9, guide rod 10, mounting strip 11, pull ring 12, hot air outlet 13, humidification outlet 14, cold air outlet 15, solenoid valve 1 16, control panel 17, rotating rod 18, partition 19, spring 21, water collection box 22, water outlet pipe 23, solenoid valve 2 24, knob 25, strip plate 26, adhesive strip 27, insertion rod 1 28, connecting plate 29, insertion rod 2 30.

[0027] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0028] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0030] Environmental simulation testing equipment plays a crucial role in modern scientific research, industrial production, and quality inspection. Double-layer high and low temperature humidity test chambers, as one type of equipment with unique advantages, are gradually gaining widespread attention. They can accurately simulate different temperature and humidity conditions, providing a reliable environmental simulation platform for the performance testing of various products and materials.

[0031] Structural Design: The double-layer high and low temperature humidity test chamber has distinctive structural features. It employs a double-layer chamber design. The outer layer is typically made of high-strength cold-rolled steel plate, treated with special anti-rust technology, making it not only sturdy and durable but also effectively resistant to external environmental corrosion. The inner layer is mostly made of high-quality stainless steel, possessing excellent corrosion resistance and high temperature and humidity resistance, ensuring that the test samples are not contaminated or affected under complex testing environments. High-efficiency insulation materials, such as polyurethane foam or fiberglass, are filled between the two chambers. Their excellent thermal insulation performance greatly reduces heat exchange between the inside and outside of the chamber, effectively reducing energy consumption while ensuring the stability of temperature and humidity within the chamber. Inside the chamber, a precise air duct system is installed. Through a rationally arranged air supply and return vent, uniform air circulation is achieved within the chamber, ensuring a highly consistent temperature and humidity distribution throughout the chamber. This provides a stable and uniform testing environment for the test samples, avoiding deviations in test results due to localized environmental differences.

[0032] In addition, the test chamber is equipped with an adjustable sample rack, which can be flexibly adjusted according to the size and shape of different test samples, making it convenient to place and fix various test items and ensuring the smooth progress of the test process.

[0033] Features: Wide Temperature and Humidity Range: The double-layer high and low temperature humidity test chamber boasts a wide temperature and humidity adjustment range. Temperature can typically be freely adjusted between -70℃ and 150℃, while humidity can be precisely controlled between 20%RH and 98%RH. This broad adjustment range allows it to simulate various extreme climatic conditions, from extreme cold to extreme heat, from dry to high humidity, meeting the performance testing needs of different products in different environments; High-Precision Control: Employing an advanced microcomputer control system paired with high-precision temperature and humidity sensors, this test chamber achieves precise control of temperature and humidity. Temperature control accuracy reaches ±0.5℃, and humidity control accuracy reaches ±3%RH. This high-precision control capability ensures the stability and repeatability of the test environment, providing strong support for the accuracy of test results; Rapid Temperature Change Capability: In tests requiring a high rate of temperature change, the double-layer high and low temperature humidity test chamber performs exceptionally well. It can achieve rapid temperature changes, with heating rates up to 5℃ / min-20℃ / min and cooling rates up to 3℃ / min-10℃ / min. Rapid temperature change capability effectively shortens the test cycle and improves test efficiency, while also better simulating sudden temperature changes that products may face during actual use. Program editing function: The test chamber's control system supports multiple program editing modes, allowing users to create their own temperature and humidity change curves according to test requirements. By setting different temperature and humidity stages, holding times, and change rates, complex and diverse real-world environmental changes can be simulated, meeting the requirements of various complex tests. Furthermore, the control system has a storage function, allowing multiple different test programs to be saved for convenient recall by the user.

[0034] Advantages Analysis: Highly Efficient Space Utilization: The double-layer structure design provides a larger testing space within a limited footprint. Compared to traditional single-layer test chambers, double-layer chambers can conduct two different tests simultaneously or test more samples at the same time, significantly improving equipment efficiency and test throughput. Energy Saving and Consumption Reduction: Thanks to the use of high-efficiency insulation materials and optimized air duct design, the double-layer high and low temperature humidity test chamber effectively reduces heat loss and energy consumption during operation. Compared to ordinary test chambers, its energy consumption can be reduced by approximately 15% to 30%, not only lowering operating costs but also contributing to energy conservation and emission reduction goals, aligning with modern green and environmentally friendly development concepts. Reliable Test Results: Precise temperature and humidity control and uniform environmental distribution ensure more stable and consistent testing conditions within the chamber, effectively reducing test errors. This provides a more reliable basis for product and material performance evaluation, helping companies improve product quality and reduce product failure rates during actual use. Simple Operation and Maintenance: The test chamber's control system interface is simple and intuitive, making operation convenient and quick. Users can easily complete a series of operations such as setting up, starting, and stopping the test program through simple button operations or touch screen operation. At the same time, the equipment's reasonable structural design facilitates routine inspection, cleaning, and maintenance work by maintenance personnel, reducing the difficulty and cost of equipment maintenance.

[0035] Application Areas: Electronics and Electrical Appliances Industry: During the research, development, production, and quality testing of electronic and electrical products, various environmental adaptability tests are required to ensure that the products can function normally under different temperature and humidity conditions. Double-layer high and low temperature humidity test chambers can simulate the use of electronic products in harsh environments such as high temperature, high humidity, and low temperature, testing the electrical performance, mechanical performance, and reliability of the products. This helps companies identify potential quality problems and improve product quality and stability.

[0036] Automotive parts manufacturing: Automotive parts face various complex environmental conditions during actual use, such as high temperature, high humidity, and cold. By using a double-layer high and low temperature humidity test chamber to conduct environmental simulation tests on automotive parts, the performance and reliability of the parts can be verified in advance, ensuring that they can meet the usage requirements of automobiles under various harsh environments, thus providing a guarantee for the safe operation of automobiles.

[0037] In the aerospace field: Aerospace products have extremely high requirements for environmental adaptability, and the failure of any component can lead to serious consequences. Double-layer high and low temperature humidity test chambers can be used to simulate the working conditions of aerospace products in extreme environments such as high altitude, low temperature, and high humidity, rigorously testing the material properties, structural strength, and reliability of electronic systems to ensure the quality and safety of aerospace products.

[0038] Materials science research: In materials science research, it is necessary to understand the performance changes of materials under different environmental conditions. Double-layer high and low temperature humidity test chambers can be used to conduct temperature and humidity aging tests on various metallic materials, non-metallic materials, and composite materials, studying the aging mechanisms, lifespan prediction, and performance optimization of materials, providing important experimental data and theoretical support for the research and development and application of new materials.

[0039] Double-layer high and low temperature humidity test chambers, with their unique structural design, powerful functional features, and wide range of applications, play an irreplaceable role in modern scientific research and industrial production. With continuous technological innovation and development, it is believed that they will demonstrate even stronger competitiveness in the future market and make greater contributions to the development of various industries.

[0040] Please see Figure 1-4 As shown, this embodiment provides a double-layer high and low temperature humidity test chamber, including: test chamber 1, a control panel 17 is provided on the front of the test chamber 1, a plurality of universal wheels 2 are movably fitted on the lower side of the test chamber 1, a test chamber is provided on one side of the test chamber 1, and a door frame 3 corresponding to the test chamber is hinged thereto. The door frame 3 is located on one side of the control panel 17, an observation window 4 is installed on the periphery of the inner wall of the door frame 3, and a handle is provided on one side of the door frame 3. The handle is located on one side of the test chamber 1.

[0041] A lifting groove is provided on one side of the door frame 3, which is connected to the laboratory. A fixing block 5 is installed on the upper side of the lifting groove, located above the observation window 4. An adjustment groove is provided inside the fixing block 5. A motor 6 corresponding to the adjustment groove is installed on one side of the door frame 3. The door frame 3 is located between the motor 6 and the fixing block 5. A rotating rod 18 is fixedly connected to the output shaft of the motor 6. The rotating rod 18 passes horizontally through the door frame 3 and the fixing block 5. A bevel gear 7 is installed around the rotating rod 18. The bevel gear 7 is rotatably engaged in the adjustment groove. A bevel gear 7 is rotatably engaged in the adjustment groove. A bevel gear 8 with seven meshing phases is provided. A screw 9 is installed on the lower end face of the bevel gear 8. The lower part of the screw 9 extends through to the outside of the fixed block 5. A water collection box 22 is installed on the lower side of the lifting groove. The lower end of the screw 9 is rotatably fitted in the water collection box 22. A guide rod 10 is installed between the lifting groove and the water collection box 22. An observation window 4 is located between the screw 9 and the guide rod 10. An installation strip 11 is threaded around the screw 9. The guide rod 10 vertically passes through the installation strip 11. A scraper corresponding to the observation window 4 is provided on the installation strip 11. The scraper abuts against the observation window 4.

[0042] One application of this embodiment is as follows: When the observation window 4 is covered with a layer of condensation, the motor 6 is started first to drive the rotating rod 18 to rotate. The rotation of the rotating rod 18 drives the first bevel gear 7 to rotate. Then, the rotation of the first bevel gear 7 drives the screw 9 to rotate through the second bevel gear 8. The rotation of the screw 9 drives the mounting strip 11 to slide downward along the guide rod 10. The downward sliding of the mounting strip 11 drives the scraper to slide downward. When the scraper slides downward, it scrapes the condensation covering the observation window 4 into the water collection box 22. Similarly, referring to the above operation, the scraper can be moved up and down to remove the condensation on the observation window 4, making it easier for the staff to observe the test status of the product in the test chamber 1. It should be noted that all electrical equipment involved in this application can be powered by a battery or an external power source.

[0043] The meshing of bevel gear 7 and bevel gear 8 facilitates the control of motor 6 to drive screw 9 to rotate, thereby controlling the up-and-down sliding of mounting strip 11. This allows the scraper to remove condensate from the observation window 4, enabling staff to observe the test status of the product inside the test chamber 1. Simultaneously, placing motor 6 outside the test chamber reduces the probability of damage to motor 6 caused by the internal environment. Guide rod 10 restricts the sliding direction of mounting strip 11, improving its stability during sliding. The water collection box 22 facilitates the collection of condensate.

[0044] like Figure 1 As shown, the test chamber 1 in this embodiment is provided with a hot air inlet 13, a humidification inlet 14 and a cold air inlet 15 on the upper side. The humidification inlet 14 is located between the hot air inlet 13 and the cold air inlet 15. The hot air inlet 13, the humidification inlet 14 and the cold air inlet 15 are all connected to the test chamber. Each of the hot air inlet 13, the humidification inlet 14 and the cold air inlet 15 is equipped with a solenoid valve 16. The hot air inlet 13 is connected to a hot air blower, the humidification inlet 14 is connected to a humidifier, and the cold air inlet 15 is connected to a cold air blower. The solenoid valve 16 facilitates the control of the injection or cessation of the corresponding hot air, humidity or cold air into the test chamber.

[0045] like Figure 2 As shown, a partition 19 is installed between the two sides of the test chamber in this embodiment. The partition 19 is installed on the side of the test chamber away from the door frame 3. The partition 19 has multiple vertical ventilation openings that penetrate through the partition 19. Hot air, moisture or cold air can easily enter the test chamber space below the partition 19 through the ventilation openings, thereby improving the accuracy of product testing. The partition 19 makes the test chamber 1 a double-layer structure, increasing the number of products that can be placed for testing at the same time.

[0046] like Figure 1As shown, the upper side of the water collection box 22 in this embodiment is provided with a slot corresponding to the screw 9. The lower end of the screw 9 is rotatably fitted in the slot. A water outlet pipe 23 is connected to one side of the door frame 3. The water outlet pipe 23 is connected to the inner cavity of the water collection box 22. A second electromagnetic valve 24 is provided on the water outlet pipe 23. The slot improves the stability of the screw 9 when rotating. The second electromagnetic valve 24 facilitates the control of the condensate in the water collection box 22 flowing out from the water outlet pipe 23.

[0047] like Figure 2 , 3 As shown, the scraper in this embodiment includes a strip plate 26 that is snapped into the mounting strip 11. A rubber strip 27 is installed on one side of the strip plate 26, and the rubber strip 27 abuts against the observation window 4. Two pull rings 12 are installed on the other side of the strip plate 26. The rubber strip 27 facilitates the scraping of condensate on the observation window 4, and the pull rings 12 improve the ease of disassembling the strip plate 26.

[0048] like Figure 2 , 3 As shown, in this embodiment, the mounting strip 11 has a first channel and a second channel on both sides, which are connected. The height of the second channel is less than the height of the first channel. The strip plate 26 is snapped into the first channel, and the adhesive strip 27 passes through the second channel laterally. A baffle assembly is provided on the upper part of the mounting strip 11. The strip plate 26 and the adhesive strip 27 are located between the baffle assembly and the observation window 4. By cooperating with the second channel, the probability of the strip plate 26 sliding out of the first channel is reduced.

[0049] like Figure 3 As shown, the baffle assembly in this embodiment includes a first insert rod 28, which is located between two pull rings 12. A strip plate 26 is located between the first insert rod 28 and the rubber strip 27. A knob 25 is installed on the upper end face of the first insert rod 28. The upper side of the mounting strip 11 has a first insertion hole corresponding to the first insert rod 28, which is connected to a first channel. The lower side of the channel has a threaded opening corresponding to the first insert rod 28. The lower end of the first insert rod 28 is threaded into the threaded opening. A bearing is installed around the first insert rod 28, and a connecting plate 29 is installed around the bearing. A spring 21 is installed between 9 and the mounting strip 11. The spring 21 is sleeved around the periphery of the insert rod 28. When the rubber strip 27 is deformed or aged and needs to be replaced, the insert rod 28 is pulled upward out of the groove, so that the bottom end of the insert rod 28 is placed in the insertion hole. After replacement, the spring 21 is contracted to pull the insert rod 28 downward, thereby improving the convenience of replacing the rubber strip 27. By turning the knob 25, the insert rod 28 is rotated, so that the thread at the lower end of the insert rod 28 is engaged in the threaded hole, further improving the stability of the insert rod 28 in the groove.

[0050] like Figure 3As shown, in this embodiment, the connecting plate 29 is equipped with two insert rods 30 on its lower side, and insert rod 28 is located between the two insert rods 30. The upper side of the mounting strip 11 is provided with a second insertion hole corresponding to the insert rod 30. The second insertion hole is connected to the first channel. The lower side of the channel is provided with a slot corresponding to the insert rod 30. The lower end of the insert rod 30 is located in the slot. By cooperating with the insert rod 30 and the second insertion hole, the stability of the strip plate 26 after installation is further improved.

[0051] This utility model is not limited to the above-described embodiments. Anyone should know that structural changes made under the guidance of this utility model, and any technical solutions that are the same as or similar to this utility model, fall within the protection scope of this utility model. Technical aspects, shapes, and structures not described in detail in this utility model are all publicly known technologies.

Claims

1. A double-layer high and low temperature damp heat test chamber, characterized in that, Include: Test box (1), test box (1) side is equipped with test room, hinged with corresponding door frame (3) of test room, the inner wall of door frame (3) is equipped with observation window (4) on the side, and the observation window (4) is equipped with observation window (4) on the side. The door frame (3) is equipped with a lifting groove, and the lifting groove is communicated with the test room, and the lifting groove is equipped with a fixed block (5) on the upper side, and the fixed block (5) is equipped with an adjusting groove in the inner side, and the door frame (3) is equipped with a motor (6) corresponding to the adjusting groove on the side, and the output shaft of the motor (6) is fixedly connected with a rotating rod (18), and the rotating rod (18) is equipped with a bevel gear one (7) on the side, and the adjusting groove is rotatably connected with a bevel gear two (8) meshing with the bevel gear one (7), and the lower end surface of the bevel gear two (8) is equipped with a screw rod (9), and the lower side of the lifting groove is equipped with a water collecting box (22), and the lower end of the screw rod (9) is rotatably connected in the water collecting box (22), and the lifting groove and the water collecting box (22) are equipped with a guide rod (10), and the screw rod (9) is equipped with a mounting strip (11) on the side, and the guide rod (10) vertically penetrates the mounting strip (11), and the mounting strip (11) is provided with a scraper corresponding to the observation window (4).

2. The dual-layer high and low temperature damp heat test chamber according to claim 1, characterized in that, The upper side of the test box (1) is equipped with a hot air port (13), a humidifying port (14) and a cold air port (15), and the hot air port (13), the humidifying port (14) and the cold air port (15) are provided with electromagnetic valve one (16) on the upper side.

3. The dual layer high and low temperature damp heat test chamber according to claim 1, wherein, The test room is equipped with a partition (19) between the two sides, and the partition (19) is vertically provided with a plurality of air vents.

4. The dual-layer high and low temperature damp heat test chamber according to claim 1, characterized in that, The upper side of the water collecting box (22) is equipped with a slot corresponding to the screw rod (9), and the door frame (3) is connected with a water outlet pipe (23), and the water outlet pipe (23) is provided with an electromagnetic valve two (24).

5. The dual layer high and low temperature damp heat test chamber according to claim 1, wherein, The scraper includes a strip-shaped plate (26) clamped in the mounting strip (11), and the strip-shaped plate (26) is equipped with a rubber strip (27) on the side.

6. The dual layer high and low temperature damp heat test chamber according to claim 5, characterized in that, The two sides of the mounting strip (11) are respectively provided with groove one and groove two, the strip-shaped plate (26) is clamped in the groove one, the rubber strip (27) transversely penetrates the groove two, and the upper part of the mounting strip (11) is provided with a baffle assembly.

7. The dual layer high and low temperature damp heat test chamber according to claim 6, wherein, The baffle assembly includes a plug rod one (28), and the upper end surface of the plug rod one (28) is equipped with a knob (25), and the upper side of the mounting strip (11) is equipped with a plug hole one corresponding to the plug rod one (28), and the lower side of the groove is equipped with a screw hole corresponding to the plug rod one (28), and the plug rod one (28) is equipped with a bearing on the side, and the bearing is equipped with a connecting plate (29) on the side, and the connecting plate (29) and the mounting strip (11) are equipped with a spring (21).

8. The dual layer high and low temperature damp heat test chamber according to claim 7, characterized in that, The lower side of the connecting plate (29) is equipped with two plug rods two (30), and the upper side of the mounting strip (11) is equipped with a plug hole two corresponding to the plug rod two (30), and the lower side of the groove is equipped with a slot corresponding to the plug rod two (30).

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