Laminated Bus Bar For Router Backplane Distribution
Products Description
A Laminated Bus Bar for Router Backplane Distribution is a laminated conductor structure specifically designed for power distribution within server backplanes and communication equipment. The product typically uses copper or aluminum busbars as the conductive core, laminated in multiple layers using high-performance insulating materials, and then manufactured through stamping, bending, surface treatment, and precision machining processes.
Compared to traditional cable connections, laminated busbars achieve more efficient and stable current distribution within a smaller space, while reducing internal wiring complexity and improving overall assembly efficiency and equipment reliability.
Typical applications include:
UPS Uninterruptible Power Supply Systems
Server Power Backplanes
Data Center Power Systems
Router Backplane Distribution
Communication Base Station Equipment
High-Power Switches
AI Server Power Architecture
Industrial Power Distribution Systems
Main Functions
| Power distribution from the 48V intermediate bus to the 12V load point | In the IBA architecture of the router backplane, the multilayer bus distributes the front-end 48V input to the DC-DC converter input of each blade slot, carrying tens of amperes of DC with a low-impedance laminar current path, while buffering converter switching transients with interlayer capacitors. |
| Common delivery of multiple auxiliary power supplies | In addition to the main power rail, the bus can integrate a 3.3V management power supply, a 5V fan power supply, and a GND return path. Multi-rail isolation is achieved through interlayer insulation, reducing the number of discrete wiring harnesses on the backplane and simplifying assembly and troubleshooting. |
| EMI reference plane for high-speed signals | The ground plane of the multilayer bus is physically close to the backplane signal layer, providing a low-impedance return path for high-speed differential pairs, suppressing common-mode noise radiation caused by reference plane cutting, and reducing the equipment's dependence on shielding and EMI pads. |
| Damping and current sharing of hot-swap surges | At the moment of blade module insertion, the distributed capacitance and resistance network of the busbar softens the surge current. Simultaneously, the multiple parallel power pins achieve current distribution through the equipotential design of the copper foil inside the Laminated Busbar Connectors, preventing single-point contact overload. |
| The backplane connector features a highly reliable electrical interface | The Laminated Busbar Power Solutions terminals, as extensions of the power pins of the backplane connector, have gold-plated surfaces and precise geometry that ensure low contact resistance and resistance to fretting wear between the busbar and connector contacts, meeting the requirements for tens of thousands of mating cycles. |
Detailed Display: Observation Points of Concern to Professional Users
Layer Alignment Accuracy
Cut open the side of the Laminated Busbar for Electric Car and observe under a magnifying glass. The conductive layer edges should be perfectly aligned, with no misalignment exceeding 0.2mm.
01
Insulation Film Coverage Integrity
Inspect all right angles and corners with a high-magnification lens. The insulation layer must completely cover the copper edges, with no exposed areas or bubbles.
02
Terminal Plating Uniformity
Silver-plated terminals should have a matte or bright silver surface, without yellowing or peeling; tin-plated terminals should be uniform and flat, without lumps.
03
Crimp Pin Verticality
For Press-fit terminals, use a vision measuring instrument to check the vertical angle of all crimp pins relative to the bottom surface of the Laminated Busbar for Three Level Inverter. The deviation should be less than 1°.
04
Post-Hot-Pressure Bending
Place the long side of the Laminated Bus Bar for Supercomputer Circuit Board (≥300mm) on a marble platform and measure the warpage. It should be less than 1.5mm to ensure a proper fit with the backplane PCB.
05
Manufacturing Advantages: Building System Barriers for Data Communication and Power Electronics
Multi-physics Simulation Pre-verification: We reject trial and error. Before mold making, our engineering team uses Ansys Q3D to extract high-frequency parasitic parameters, Icepak for thermal flow simulation, and Mechanical for insertion/extraction force and thermal stress simulation, ensuring success on the first piece and significantly shortening customer project development cycles.
Flexible Common-Mold Tooling System: Addressing the diverse and rapidly iterating nature of data center equipment, we have developed modular common-mold tooling. Different specifications of backplane busbars can share a common base pressing platform by adjusting only some locating pins, minimizing replacement costs and delivery time.
Hi-Pot and Partial Discharge Full Inspection System: Every UPS Subway Laminated Busbar undergoes power frequency/DC high-voltage withstand voltage testing. Core high-voltage products also undergo partial discharge testing to ensure that the partial discharge level is at an extremely low microampere level under rated voltage, eliminating the risk of early failure.
contact us
We not only provide standardized Laminated Busbar for Electric Car products, but also offer integrated engineering support, from conductor design and insulation optimization to mass production, tailored to customers' server architecture, power supply architecture, and installation space requirements. This helps projects achieve higher reliability, system integration, and long-term stable operation.
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