Vibration Test System For EV Component Testing With Multi-Axis Tables

Vibration Test System For EV Component Testing With Multi-Axis Tables

Product overview

Environmental Stress Screening (DCS) is extremely effective in eliminating potential product defects. In the development stage, it becomes a magic weapon to find product design defects to achieve reliability growth; in the production stage, it becomes an important means to reduce production costs and create excellent products.

The DCS project will be applied during product development and production, which can greatly improve product reliability and reduce maintenance costs. Applying DCS during development can greatly save testing time and cost, thereby eliminating or reducing hidden defects before testing. The benefits for producers include: insight into reliability problems in products or processes, so as to eliminate reliability problems from products and processes, reduce production costs and save resources.

Vibration test can be used to find early battery failure, simulate actual working condition assessment and structural strength test. The product has a wide range of applications, wide application range, remarkable and reliable test effect. It is an ideal battery-specific vibration test for battery manufacturers, quality inspection departments and research institutes. Test Equipment. It is suitable for vibration testing of various types of single cells and battery packs such as charging treasures, lithium-ion, nickel-metal hydride, nickel-cadmium, lead-acid, and nickel metal hydride.

Vibration tests can also be used for fatigue tests of products for life assessment of products.

System working diagram

Test system composition

The vibration test system consists of ZZ-2000-21/S-1010 conjoined horizontal vibration generator/TB-1010 vertical extended table/FJ 2000/cooling fan with silencer/KA-21/digital switching power amplifier/VENZO -820 vibration control measuring instrument. In addition, according to the size of the user's test piece, the vertical expansion table can be customized or selected, and it can be matched with the environmental test chamber to form a comprehensive environmental test equipment.

Overview of each component

ZZ-2000 vibration generator:

◆ Surrounded by a double magnetic circuit structure, compared with a single magnetic circuit, the magnetic field strength is stronger, the table body is smaller, and the magnetic flux leakage is small.

◆ Skeletonless moving coil: Because the moving coil skeleton is omitted, the moving system is light in weight, has high no-load acceleration, and the first-order natural vibration frequency of the moving coil is high, so that the waveform distortion in the whole frequency band is small, and the moving coil has good heat dissipation.

◆ Suspension device: Roller arm suspension system and linear bearing guide make the vibrating table have good guiding performance and better anti-bias load capacity.

◆ Use air spring support with small dynamic stiffness and high static stiffness: strong bearing capacity and good low frequency characteristics.

◆ Trunnion vibration isolation: When vertical vibration occurs, special foundation can be omitted.

◆ The special air-cooled low-noise fan adopts a new air duct design to enhance the cooling effect.

Overview of KA-21 Digital Switching Power Amplifier

◆ KA series digital switching power amplifier is composed of power module box, logic module box, power supply module, excitation rectifier module and so on. The key components are provided by world-renowned brand companies such as APT Company of the United States, Flint Company of the United States, Mitsubishi Corporation of Japan, Hitachi Corporation, LG Corporation of Korea, etc., with reliable quality.

◆ The user can check the working status of each module and system at any time. If a power module is faulty, it can be removed manually in time.

◆ Equipped with a power factor compensation device, the power factor of the entire power amplifier reaches 92%, so that the grid capacity can be fully utilized.

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

◆ The working principle of switching power supply is adopted, and the conversion efficiency is high. The conversion efficiency of the power module can reach 92%. The entire power amplifier system adopts forced air cooling.

◆ Using electronic automatic current sharing technology, each module is almost the same in parallel, and the unbalance degree of parallel current sharing is ≤2%.

◆ Power devices adopt imported field effect modules (other domestic manufacturers generally use field effect single transistors). The protection circuit is reduced, the reliability is improved, and the current capacity is large. The maximum output of a single power module box is 25kVA.

◆ The power module box is small in size, and there are 5kVA, 10kVA, 15kVA, 20kVA, etc., which can be selected according to the actual situation of the user.

◆ Complete protection functions, the entire power amplifier has 18 protection functions

TB-1010 vertical extension table

In the actual vibration test, the tested product is often larger than the table top of the electric table. At this time, it is necessary to expand the original table top. The common method is to install an auxiliary table top. Some tested products require special installation, which requires custom fixtures to meet this installation. The above two situations must meet certain technical specifications, such as operating frequency, table weight, table acceleration, amplitude uniformity and lateral direction, etc., so there are strict requirements for this type of table or fixture. The TB extended table made by Xinghan and the special fixture made by Xinghan, after precise calculation and careful design, ensure that users can obtain the optimal performance required in terms of structure, material and manufacturing process

SC-1010 horizontal expansion slide table

SC Series horizontal slides are designed with high overturning moments and lateral restraints. At the same time, the damping characteristics of the pilot oil film are maintained. The horizontal slide table is composed of a slide plate, a connecting head, a natural granite slab, and a horizontal slide table base. The high-pressure oil becomes low-pressure oil through the damper, forming a layer of oil film between the bottom surface of the slide table and the granite plate. The horizontal slide table top can move freely on the granite slab. The high-pressure oil source and the horizontal sliding table are connected together through high-pressure oil pipes, which makes the horizontal sliding table system simple in structure, convenient in operation and maintenance, and reliable in operation.

Technical performance indicators of each component

Main configuration list

3. Installation conditions

A three-phase four-wire 380V, 100A air switch

Total power: 45KVA

Grounding copper wire diameter ≥ 10mm²

Air source: 0.6-0.8Mpa

Users should prepare corresponding spreaders and forklifts.