As a core equipment in the field of environmental reliability testing, the walk-in constant temperature and humidity test room has become the preferred solution for testing complete machines and large components in industries such as electronics, automobiles, ships, aerospace, etc. due to its large capacity, high precision, and intelligent characteristics. Its technological advantages are reflected in four dimensions: structural design, temperature and humidity control, safety protection, and operational convenience.

1、 Modular structure: adapt to multiple test requirements

The laboratory adopts a modular box design, and the inner liner is selectedSUS304Made of stainless steel material, the outer box is treated with rust resistant cold-rolled steel plates or color coated steel plates, ensuring both corrosion resistance and aesthetics. with40Taking the standard cubic meter model as an example, its internal clearance size can reach5.5m(Long)×2.8m(Width)×5.5m(High), capable of accommodating large test objects such as whole cars and server cabinets. Scientific air duct design combined with multi wing air supply fans achieves uniform temperature and humidity distribution±2℃(Temperature)±2.5%RH(Humidity), to avoid distortion of test data caused by dead corners of airflow. A certain new energy vehicle enterprise successfully achieved battery pack integration through customized box structure-40℃to+85℃The thermal shock test within the temperature range verified its low-temperature start-up performance.

2、 High precision environmental control: breaking through temperature and humidity limits

Equipment coverage-70℃to+150℃Temperature range and20%to98%RHHumidity range, temperature fluctuation controlled within±0.5℃Within, humidity accuracy reaches±2%RH. WithWTH-39520WTaking the model as an example, its heating rate can reach1℃/min（-20℃to+85℃）， 降温速率0.7℃/min（+25℃to-20℃）SatisfyGJB150The standard requires rapid temperature change testing. The refrigeration system adopts French Taikang or German valley wheel compressors, combined with cascade refrigeration technology, to achieve-70℃Ultra low temperature environment; The humidification system uses a shallow surface evaporative stainless steel humidifier andROMembrane filtration water supply device ensures the stability of humidity control. During the testing of a certain satellite component, the equipment was-60℃Accurately maintain humidity in the environment30%RHVerified the reliability of its electronic components under extreme conditions.

3、 Multiple security measures: ensuring the safety of personnel and equipment

The laboratory is equipped with residual current circuit breakers, over temperature protectors, phase loss protectors, etc12Equipped with safety devices and innovatively adopting a water electricity separation design, the humidification system is completely isolated from the electrical system. When the temperature inside the box exceeds the set value2℃At this time, the over temperature protector automatically cuts off the heating power supply; If the compressor pressure is abnormal, the pressure controller will immediately start the shutdown protection. During testing at an aviation company, abnormal temperature was caused by a cooling water circulation failure, and the equipment was0.5Trigger an alarm within seconds and stop running to avoid damage to the test sample.

4、 Intelligent operation: improve testing efficiency

Equipment equipped7Inch true color touch screen andPLCProgram controller, supports switching between Chinese and EnglishUSBData export and Ethernet communication function. Users can preset through the program120Group testing process to achieve automatic temperature and humidity cycle control. A certain electronic manufacturer utilizes remote monitoring function to view server cabinets in real-time in the office85℃/85%RHAging test data under conditions, with manual inspection frequency increased from per hour1Reduce the frequency to daily2Secondly, the reduction of labor costs60%.

From the laboratory to the production line, the walk-in constant temperature and humidity test room adapts to personalized needs with modular design, breaks through technical boundaries with high-precision control, and solidifies the testing bottom line with safety protection, becoming a key infrastructure for promoting product quality upgrades.