Laminated Bus Bar For Industrial Inverter Low-inductance IGBT Phase
In industrial automation, UPS uninterruptible power supply systems, data center servers, power quality equipment, and new energy power electronics systems, the connection method between power modules directly affects equipment efficiency, thermal management performance, and system stability. With the widespread application of IGBTs, SiC modules, and high-frequency switching technologies, traditional cable connections are no longer sufficient to meet the design requirements of high current, high frequency, and low inductance. Laminated busbars, as an important conductivity solution for modern power electronics systems, achieve a low-inductance, low-impedance, and high-reliability current transmission structure by precisely laminating and integrating multiple layers of conductors and insulating materials. Especially in Industrial Inverters, UPS uninterruptible power supplies, and server power systems, Laminated Bus Bar for Industrial Inverter Low-inductance IGBT Phases have become an important replacement for traditional wire harness connections.
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Product Introduction
Laminated Bus Bar for Industrial Inverter Low-inductance IGBT Phase are conductive component manufactured by laminating multiple layers of copper busbars with high-performance insulating media.
Their basic structure consists of:
Positive conductor layer
Negative conductor layer
Signal layer (optional)
Insulation layer
Mounting the structure layer
By tightly stacking conductors with opposite current directions, the loop area can be significantly reduced, thereby reducing parasitic inductance and electromagnetic radiation.
Compared to traditional cable connections, multilayer busbars enable more compact power structure designs and improve the overall electrical performance of the system.
Extensive Application Advantages: Empowering Cloud Servers and High-Power Industrial Control Systems
Cloud Computing Servers and Ultra-Large Uninterruptible Power Supplies (UPS)
Server power supply racks have extremely compact internal space; our ultra-thin BusBar with PET Insulating Papers perfectly address the demands for low power consumption and high space utilisation under high current distribution.
Megawatt-Level Wind, Solar, and Energy Storage Industrial Inverters
Laminated Bus Bar for Variable Frequency Drive provides robust low-inductance redundancy protection against high DC bus overvoltage surges during sudden grid fluctuations in wind power and photovoltaic inverters.
Medium- and High-Voltage Frequency Converters and Rail Transit Traction Inverters
Ensures long-term high-voltage insulation safety under frequent start-stop cycles and severe mechanical vibrations.
Material Advantages: The Ultimate Choice from Microscopic to Macroscopic Conductivity
| High-Purity T2 Copper Substrate | Utilising highly conductive oxygen-free copper or T2 copper, this material reduces bulk resistance at the crystal level, enhancing current-carrying capacity. The copper layer thickness and width are rigorously calculated using thermal and flow fields to ensure thermal stability under continuous high current and transient surges. |
| Polymer Composite Insulating Medium | Employing high-performance polyester film or epoxy resin-impregnated insulating paper with B- to H-grade heat resistance. These materials not only possess extremely high dielectric strength and extremely low dielectric loss but also exhibit excellent resistance to partial discharge, remaining resistant to ageing and breakdown under long-term high-temperature and high-electric-field conditions within the inverter. |
| Environmentally Resistant Surface Treatments | Tin plating, nickel plating, and silver plating options are available depending on the application environment. Nickel plating provides excellent oxidation resistance and high-temperature resistance; silver plating minimises contact resistance, ensuring controlled temperature rise at high-current connections; and tin plating provides excellent solderability and corrosion protection. |
Manufacturing Advantages – Engineering Capabilities Stem from Dedicated Equipment and Process Control
Large Vacuum Laminator
Worktables up to 1200mm × 800mm meet the size requirements of high-Laminated Bus Bar for Distributing Power Backplanes while ensuring uniform pressure across the entire board.
Rapid Prototyping and Sample Making Capabilities
Utilising precision laser cutting and manual lamination processes, samples can be provided within 5 working days for customers' overall EMC testing.
Full-Dimensional Optical Inspection
100% inspection of critical holes using a 2.5D image measuring instrument ensures perfect matching with IGBT modules and capacitor banks.
Thermal Cycling Verification
For specific customers, reports on insulation resistance and inductance changes after 100 thermal cycles at -40℃ to 125℃ can be provided.
contact us
Whether you are developing a new generation of UPS systems, server power platforms, or high-performance industrial inverters, the Apollo engineering team can provide a one-stop Laminated Bus Bar for Router Backplane Distribution engineering solution, from structural design optimisation to mass production and delivery, based on your current path, IGBT layout, and installation space requirements.
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