EN 50604-1 Battery Vibration Test System for Cell Pack Impact & Reliability Testing

1. Vibration Table Body A11S24

1.1 Moving coil

The vibrating table is equipped with cast and manually machined moving coils, optoelectronic load support system and dual bearing axial guidance. Dual bearing guidance is a unique feature that helps reduce dynamic axial crossing and rotation during vibration testing for superior durability.

1.2 Excitation coil

Double magnetic circuit structure, low flux leakage, uniform magnetic field.

1.3 body surface

Using advanced phosphating treatment and car paint technology, it has long-term anti-wear and anti-rust effects.

1.4 Table refrigeration:

Adopt low-noise fans and improve the air intake structure of the table body. The excitation coil adopts a honeycomb air duct, and the middle magnetic ring adopts a double-layer shunt air duct. A new air duct design is adopted to enhance the cooling effect.

2. LA Digital Switching Power Amplifier

LA series digital switching power amplifier adopts reliable MOSFET or IGBT technology:

a. High stability and reliability

b. Meet the requirements of the EU "CE" standard

c. Using sinusoidal frequency multiplication pulse width modulation technology, the signal-to-noise ratio of the power amplifier is high.

d. Using the working principle of switching power supply, the conversion efficiency is high.

e. Using electronic automatic current sharing technology

f. Good safety performance.

3. Servo protection system

Complete protection functions, including power grid overvoltage, undervoltage, phase loss, logic fault, power module pass-through, overtemperature, output overcurrent, output overvoltage, drive power, platform over-displacement, platform temperature, external interlocking, etc.

4. Vertical expansion platform

The extension platform is usually used as a platform for larger mounting specimens, and can be square or round or user-defined. In order to reduce the impact of the dynamic characteristics of the extended platform, all the extended platforms must be modeled and analyzed for their modal frequencies. These extension platforms are typically cast from magnesium alloy and have damping material attached.

5. Horizontal sliding platform

The horizontal slide design has a high overturning moment and lateral restraint. This design concept, combined with a standard horizontal slide arrangement, has a high dynamic moment limit while maintaining the guiding oil film damping characteristics. The horizontal slide table is composed of a slide plate, a connecting head, a natural granite slab, a horizontal slide table base, and an independent oil source.

6. Photoelectric automatic centering system

Automatically adjust the position of the moving coil to keep it in a balanced state. An automatic centering system ensures that the moving coil is always centered during loading and unloading.

7. Digital vibration controller

Vibration controller adopts advanced distributed structure system. The closed-loop control is realized by the DSP processor, and the PC is independent from the control loop. It ensures the real-time and high efficiency of the control system. It can respond to any changes in the test system in a timely and rapid manner. Ensure the stability and high precision of the control. The hardware adopts a 32-bit floating-point DSP processor with a main frequency of up to 300MHz and an ADC/DAC with a 24-bit resolution. Low-noise design technology with high-precision floating-point digital filtering and hardware circuits. The controller randomly controls the dynamic range to be greater than 90dB, and the signal-to-noise ratio is greater than 100dB.