5Hz - 3000Hz Vibration Test Table For Large Lithium Ion Battery Assemblies
| Attribute | Value |
|---|---|
| Frequency | 2000Hz |
| Sine force | 20kN /2000kg/4409lbf |
| Random force | 20kN /2000kg/4409lbf |
| Shock force | 98kN /9800kg/9918lbf |
| Channel | 2/4/8/16 |
| Maximum acceleration | 100g |
| Maximum displacement | 100mm (4")/76mm (3")/51mm (2") |
| Maximum load | 300KG |
| Moving parts mass | 20KG |
| Armature diameter | 335mm |
This test simulates vibration during transport.
- Cells and batteries are firmly secured to the platform of the vibration machine without distorting the cells to faithfully transmit the vibration
- The vibration shall be a sinusoidal waveform with a logarithmic sweep between 7 Hz and 200 Hz and back to 7 Hz traversed in 15 minutes
- This cycle shall be repeated 12 times for a total of 3 hours for each of three mutually perpendicular mounting positions of the cell
- One of the directions of vibration must be perpendicular to the terminal face
Some elements of the existing test series are not relevant to a non-operating cell or battery packaged for transport, however, some elements are retained and strengthened:
- The extreme temperature exposure test is expanded to stress connections within cells and battery packs
- The vibration test is expanded in frequency range to be representative of conditions of all modes of transport
- The current shock test is replaced by a more universal shock test
Vibrations in commercial aircraft from which packages may be exposed range from 5 mm amplitude at 7 Hz (corresponding to 1 g acceleration), to 0.05 mm amplitude at 200 Hz (corresponding to 8 g acceleration).
Fix the DUT (Device Under Test) with an attachment or jig to the platform and turn it to set in the proper direction when changing the vibration direction. The attachment or jig should be designed to avoid harmful influences from resonant vibration of jig and DUT in the test frequency range.
- Lithium ion battery packs are required to pass UN Tests and Criteria Section 38.3, same as lithium ion cells
- Lithium Ion Battery Packs are electric storage systems made by assembling cells or modules with connection by bus-bars/electric wires
- The battery packs have appropriate strength resistant to meet automobile design requirements
- Such battery packs are mainly no more than 6200 Wh in capacity
- The gross weight is generally proportional to its battery capacity, ranging from 12 kg to 100 kg or more
- Large, heavyweight battery packs require testing facilities with sufficient capability
- ISO/CD 12405: Electrically propelled road vehicles - Test specification for lithium-ion traction battery packs and systems
- ISO 16750-3: Road vehicles - Environmental conditions and testing for electrical and electronic equipment - Part 3: Mechanical loads
- RTCA/DO-160D: Environmental Conditions and Test Procedures for Airborne Equipment
| Model | JQA-202-335 / JQA-203-335 |
|---|---|
| Frequency Range (Hz) | 5~3000 |
| Rated sinusoidal force (KN) | 20 |
| Shock force (KN) | 40/60✱ |
| Max. acceleration (m/s²) | 980 |
| Max. speed (m/s) | 2 |
| Max. displacement (mmp-p) | 51/76 |
| Max. load (kg) | 300 |
| Vibration isolation frequency (Hz) | 2.5 |
| Shaking table type | JQ-20 |
| Moving parts weight (kg) | 23 |
| Armature diameter (φmm) | 335 |
| Allowable eccentric moment (N x m) | 490 |
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