Temperature & Flow Control Test Chamber

Test Warehouse&Chamber for Automotive/Battery/Semiconductor IC etc. testing

Integrated system provides new energy power battery samples
High temperature, low temperature, flow and pressure control and other needs

Environmental chamber provides -45°C~100°C

battery testing Chambre

Battery environmental test chamber Comprehensive test chamber Walk-in test chamber

Constant temperature and humidity environmental test chamber

Two-box hot and cold shock test chamber Low temperature test chamber

component testing Chambre

Color touch screen control panel, integrated numerical values, charts and alarm prompts: improve system stability through cascade control algorithm and PID parameter self-tuning function

The variable frequency pump can adjust the circulating hydraulic pressure and flow rate to achieve high-precision control of the total range from 5% to 100%.

The refrigeration unit mainly includes refrigeration compressor, condenser, oil separator, intermediate heat exchanger, internal circulation fan of the box, dry filter, condenser, evaporator, throttling mechanism, expansion tank, electrical control, etc.

Cascade control algorithm

Cascade control schematic

PID parameter self-tuning function

Classic PID control Self-tuning PID control

The liquid refrigerant in the evaporator of the unit exchanges with the circulating air inside the box. The temperature rises and changes from liquid to gas. It is sucked into the suction port of the compressor. The high-temperature and high-pressure refrigerant gas compressed by the compressor first passes through The oil separator separates the refrigeration oil carried during the compression process, and then enters the condenser. After exchanging heat with ambient air or cooling water, it changes from high-temperature and high-pressure gas to high-pressure and normal-temperature liquid. The high-pressure and normal-temperature refrigerant liquid passes through the dry filter and then is throttled and decompressed by the expansion valve, that is, it changes from high-pressure liquid to low-pressure liquid. Low-pressure liquid (lower boiling point) enters the evaporator of the unit, and the cooling energy is brought to the inside of the box through circulating air to achieve refrigeration.

It can provide antifreeze system for high-temperature and low-temperature tests for automobile battery packs, and can also be used as a refrigeration and heating system for hot and cold shock.

The battery is tested for stability and safety in a high temperature chamber with natural convection or forced ventilation.