Fully programmable walk-in climate simulation system
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Applications
High and Low Temperature Humidity Test Chamber is designed for performance and reliability testing of electric vehicle power batteries. It can be integrated with battery performance testing systems and is also suitable for research and development, matching, and other tests involving power batteries and battery management systems.
Standards
GB/T 2423.1: Environmental testing methods for electrical and electronic products - Test A: Low-temperature test method
GB/T 2423.2: Environmental testing methods for electrical and electronic products - Test B: High-temperature test method
GB/T 2423.3: Environmental testing methods for electrical and electronic products - Constant humidity and heat test method
GB/T 2423.4: Environmental Testing Methods for Electrical and Electronic Products - Alternating Humidity and Heat Test Method
GB/T 10586-2006: Technical Conditions for High and Low Temperature Test Chambers
GB/T 10592-2023: Technical Conditions for High and Low Temperature Test Chambers
IEC 62660-4 Lithium-ion batteries for electric road vehicle propulsion
GB/T 31484-2015 Cycle life requirements and test methods for power batteries used in electric vehicles
Features
1. Comprehensive Safety Protection: Equipped with explosion-proof devices, automatic fire suppression systems, and gas detection units to ensure testing safety.
2. Intelligent Operation and Energy Efficiency: Supports program control and remote monitoring, utilizes fluorine-free refrigerants and energy-saving technologies, and complies with environmental standards.
Parameters
| No. | Item | Specifications |
|---|---|---|
| 1 | Inner Chamber Volume | 12 m³ |
| 2 | Inner Chamber Dimensions | 3000mm (W) × 2000mm (D) × 2000mm (H) |
| 3 | Temperature Range | -45°C ~ +100°C (adjustable) |
| 4 | Temperature Fluctuation | ≤ 0.5°C (no load, steady state) |
| 5 | Temperature Uniformity | ≤ 2°C (no load, steady state) |
| 6 | Temperature Deviation | ≤ ±2°C (no load, steady state) |
| 7 | Heating Rate | ≥ 2°C/min (room temperature ~ 85°C, with non-linear load of 1000kg battery pack) |
| 8 | Cooling Rate | ≥ 1.0°C/min (room temperature ~ -40°C, with non-linear load of 1000kg battery pack) |
| 9 | Humidity Range | 20% ~ 98% RH (adjustable) |
| 10 | Humidity Deviation | - Humidity > 75% RH: ≤ ±2~3% RH- Humidity ≤ 75% RH: ≤ ±5% RH |
| 11 | Humidity Fluctuation | ≤ 2% RH |
| 12 | Humidity Uniformity | - Humidity > 75% RH: ≤ ±2~3% RH- Humidity ≤ 75% RH: ≤ ±5% RH |
| 13 | Air Pressure Balance System | Equipped with an air pressure balance valve, which opens automatically under a certain pressure difference |
Test Procedures
1. Pre-Operation Preparation
Ensure power cords and grounding wires are securely connected.
Open the chamber door, remove any debris inside, and verify proper sealing.
Check refrigerant levels and ensure the water inlet contains adequate clean water (manual water addition required for some models).
2. Parameter Settings
Set high temperature (e.g., 80°C), low temperature (e.g., -40°C), and humidity (e.g., 95% RH) via the control panel.
Configure preheating duration, constant temperature duration, and cycle count (e.g., 5 cycles).
3. Sample Placement
Place the power battery inside the chamber, close the door, and wait for preheating to complete.
If testing ports are required, connect cables and secure them.
4. Initiate Testing
Press the power button to start operation according to the set parameters.
Monitor sample conditions closely during testing and record temperature, humidity, and other data.
5. End of Operation
After testing concludes, turn off the power and clean any accumulated water or debris from the chamber.
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