Products Description
This service, in accordance with the GB/T 40432-2021 standard, conducts 7 categories and 20+ extreme tests on On-Board Chargers (OBCs), including temperature cycling (-40°C to 85°C), damp heat aging (95% RH), and overvoltage surges (1.5 times rated voltage). It accurately simulates 8-10 years of usage aging to verify the lifespan and safety margin of power components.
Service Scope
On-Board Charger (OBC)
Test Standard
GB/T 40432-2021 "Conductive On-board Charger for Electric Vehicles"
Test Items
|
Category |
Test Item |
Assessment Criteria |
|
Environmental Stress Durability Tests |
Temperature Cycling Test |
Insulation Resistance (≥10 MΩ), Leakage Current (<10 mA), Startup Time Change Rate (<10%) |
|
Damp Heat Durability Test |
Creepage Distance Variation, Solder Joint Corrosion Rate, Insulation Material Water Absorption Rate (<1%) |
|
|
Thermal Shock Test |
Enclosure Deformation (<0.5 mm), Connector Contact Resistance Change (<5%) |
|
|
Electrical Stress Durability Tests |
Overvoltage / Undervoltage Cycling Test |
Input Current Waveform Distortion Rate (THD <8%), Protection Function Response Time (<20 ms) |
|
Abnormal Power Shutdown Test |
Relay Contact Arc Erosion Degree, Main Circuit Fuse Lifespan |
|
|
Mechanical Stress Durability Tests |
Vibration Durability Test |
Solder Joint Cracks (Microscope Inspection), Screw Loosening Torque (Attenuation <10%) |
|
Shock and Drop Test |
Enclosure Crack Resistance, Internal Component Displacement (<1 mm) |
|
|
Functional Durability Tests |
Efficiency Degradation Test |
Peak Efficiency Degradation <5%, Typical Load (50% Power) Efficiency Degradation <3% |
Service Background
With the global advancement of the "Dual Carbon" goals, global new energy vehicle sales exceeded 20 million units in 2024, with the Chinese market accounting for over 60%. As the core component connecting the grid and the battery, the OBC needs to withstand 1-2 daily charging cycles on average. For some commercial vehicles (e.g., taxis, ride-hailing cars), the daily charging frequency can reach 3-5 times. Frequent power conversion accelerates the aging of internal power components (such as IGBTs, capacitors), making it imperative to verify long-term reliability through durability testing.
Our Advantages
● GRGTEST possesses extensive experience in durability and reliability testing for automotive electronic components, including OBCs, adhering to national and international standards.
● Our laboratories are equipped with advanced environmental chambers, vibration test systems, and precision electrical measurement instruments to ensure accurate and repeatable results.
● We provide comprehensive test reports with detailed data analysis, supporting our clients in product improvement and certification processes.
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