The battery explosion-proof high-low temperature test chamber is a specialized device designed for battery testing. It can simulate high and low temperature environments while effectively preventing safety accidents such as overheating, short circuits, or internal faults during testing, ensuring the safety of both equipment and personnel. Below is a detailed introduction:

I. Core Functions and Features

Explosion-Proof Design

Chamber Structure: Made of high-strength stainless steel, it offers excellent mechanical properties and can withstand impact forces to prevent chamber rupture.

Sealing and Pressure Relief: Equipped with double-layer sealed doors and sealing strips to prevent flame and gas leakage; pressure relief devices on the top or sides automatically open when pressure is too high, releasing internal pressure and minimizing damage to the chamber.

Explosion-Proof Chain and Hinges: Explosion-proof chains are installed on the front and rear pressure relief doors to cushion impact forces; thickened stainless steel hinges connect the explosion-proof door to the chamber, and the door lock is a high-strength flat lock to ensure safety.

High-Precision Temperature and Humidity Control

Temperature Range: Typically from -70°C to +150°C, meeting the demands of extreme environment simulation.

Refrigeration and Heating Systems: Utilizes cascade refrigeration technology, consisting of a high-temperature stage (R404A refrigerant) and a low-temperature stage (R23 refrigerant), enabling rapid cooling; the heating system precisely adjusts heater power via PID control algorithms to ensure stable temperature control.

Humidity Control: Employs dry-wet bulb or dew point methods for humidity measurement, combined with humidification and dehumidification devices, achieving an accuracy of ±2% RH.

Comprehensive Safety Monitoring

Gas Detection and Alarm: Equipped with gas detection sensors to monitor the concentration of flammable and explosive gases inside the chamber in real time; triggers audible and visual alarms and activates ventilation devices when levels exceed standards.

Multiple Protection Devices: Includes leakage protection, overload protection, short-circuit protection, and over-temperature protection, ensuring automatic power shutdown in abnormal conditions to prevent fires or equipment damage.

II. Application Scenarios and Value

Battery Research and Development

Testing Needs: Simulates battery performance under extreme temperature conditions, such as charge-discharge performance, capacity decay, and cycle life, to evaluate battery safety and reliability.

Case Study: A new energy vehicle company used this equipment for high-low temperature cycle charge-discharge tests on power batteries, identifying abnormal heating issues at high temperatures and optimizing designs in a timely manner, shortening the R&D cycle.

Quality Inspection and Certification

Industry Standards: Complies with standards such as GB2423.1, GB2423.2, GJB150.3, and GJB150.4, meeting the testing requirements for battery environmental adaptability in military, aerospace, and automotive industries.

Sampling Applications: Energy storage battery manufacturers use this equipment for high-temperature storage and low-temperature startup tests on each batch of batteries, ensuring products meet quality standards and preventing defective items from entering the market.

III. Technical Parameters and Performance Indicators

Temperature Range: Typically from -70°C to +150°C, with some devices supporting custom lower temperatures (e.g., -80°C).

Temperature Fluctuation: ≤±0.2°C, ensuring the accuracy of test results.

Temperature and Humidity Uniformity: Temperature uniformity ≤±2°C, humidity uniformity ≤±3% RH.

Heating and Cooling Rates: Heating rate of 3°C/min, cooling rate of 1°C/min (non-linear control, no load), enabling rapid simulation of environmental changes.

Noise: ≤75 dB, suitable for laboratory environments.

IV. Operation and Maintenance

Ease of Operation:

Equipped with a touchscreen or intelligent control system, supporting program settings, real-time monitoring, and data export.

Built-in independent temperature limit alarm system that automatically interrupts operation when the temperature exceeds the set limit.

Maintenance Points:

Regularly inspect electrical wiring, sealing strips, and pressure relief devices to ensure the equipment remains in good condition.

Avoid using corrosive solvents when cleaning the inner chamber to prevent damage to the stainless steel surface.