Double-layer Constant Temperature and Humidity Test Chamber is an important experimental device widely used in industrial, medical, research, and other fields. Its principle is based on constant temperature and humidity technology, which maintains stable environmental parameters under specific temperature and humidity conditions. By controlling the operation of heating and cooling devices as well as humidity regulation systems, the test chamber keeps the internal temperature and humidity within a defined range.

The double-layer constant temperature and humidity test chamber mainly consists of an outer chamber and an inner chamber:

Outer Chamber: The main structure of the test chamber, usually made of stainless steel, offering excellent strength and corrosion resistance.

Inner Chamber: The internal space of the test chamber, also constructed from stainless steel, providing good thermal conductivity.

Additionally, the test chamber includes key components such as a control system, heating and cooling devices, and humidity regulation systems.

The working principle of the double-layer constant temperature and humidity test chamber is as follows:

Temperature Regulation: Data is collected via built-in temperature sensors, adjusted by the temperature controller (microprocessor), which then activates the air heating unit to increase temperature or adjusts the cooling solenoid valve to decrease the internal temperature, achieving the desired control.

Humidity Regulation: Data is collected via built-in humidity sensors, adjusted by the humidity controller (microprocessor), which then activates the water tank heating element to evaporate water and increase humidity or adjusts the cooling solenoid valve to dehumidify, achieving the desired humidity control.

Simultaneously, a rotating fan installed at the top of the chamber circulates air into the chamber, balancing the internal temperature and humidity.

Application Areas

Double-layer Constant Temperature and Humidity Test Chamber can meet the temperature requirements of test samples at different stages across various temperature ranges, with each layer independently controlling temperature and humidity. Therefore, it has broad applications in multiple fields:

Industrial Field: Used for quality control and inspection of products, such as electronic devices and automotive components.

Medical Field: Used for stability testing of pharmaceuticals and performance testing.

Research Field: Used for material performance testing and environmental simulation experiments.

Taking lithium batteries for new energy vehicles as an example, they need to be tested in the chamber to simulate various usage environments like high and low temperatures before market release to ensure product performance meets standards. Additionally, industries such as smartwatches, wearable devices, automotive electronic parts, and power banks also utilize this type of test chamber.

Safety Protection

Some brands of double-layer constant temperature and humidity test chambers incorporate enhanced safety designs, such as explosion-proof nets, insulated workspace treatment, and reinforcement ribs, systematically improving the safety protection level of the chamber. The observation window is equipped with a metal explosion-proof net that prevents fragments from flying out during incidents like battery testing, protecting laboratory personnel from injury. The inner walls of the workspace are lined with an insulating layer to prevent electric shock. Externally, circumferential reinforcement ribs are installed around the workspace to further enhance its explosion-proof strength.