Laminated Copper Bus Bar
Products Description
laminated copper bus bars are not simply an upgrade of traditional single copper busbars, but a systematic electrical connection component. Their essential characteristics are reflected in the following aspects:
Multi-layer conductor collaborative operation: Multiple copper conductors are scientifically arranged according to the current path to achieve balanced current distribution.
Insulation and conductor integrated design: The conductor and insulation layers are structurally tightly integrated, reducing assembly errors.
Flattened and modular structure: Suitable for high-density, standardized layouts within UPS and server systems.
For system-level applications: Not only a conductive component, but also an integral part of the stability of the electrical system.
Core Properties and Features of the Product
Laminated Composite Structure Characteristics
Utilizing an alternating laminated composite structure of "copper conductive layer + insulating layer," the conductive and insulating layers are tightly bonded, eliminating bubbles and peeling risks, resulting in high interlayer bonding strength. This structure significantly reduces the parasitic inductance and resistance of the BusBar for Power Electronics, improving the stability of high-current transmission. Simultaneously, the multi-layered distribution design optimises the current path, reduces eddy current losses, and adapts to the high-frequency switching requirements of UPS systems.
High Conductivity Substrate Characteristics
99.99% high-purity electrolytic copper is selected as the conductive substrate. Copper possesses excellent electrical and thermal conductivity, enabling low-loss transmission of high current and ensuring a stable power supply to the UPS under full load and overload conditions. The substrate has good ductility and mechanical strength, allowing for precision bending and cutting to fit the complex and compact installation layout of UPS and servers.
Insulation Protection Characteristics
The matching insulation layer uses high-temperature and high-voltage resistant special insulation materials (such as epoxy glass cloth and polyimide), with a temperature resistance range of -50℃ to 150℃ and high breakdown voltage, effectively resisting voltage fluctuations and surge impacts during UPS operation. The insulation layer has good chemical corrosion resistance and aging resistance, adapting to long-term stable operation in the closed environment of data centres.
Scenario Adaptability
Supports full-specification customisation. The conductive layer thickness, number of layers, insulation layer type and thickness, product length, bending angle, and mounting hole positions can be customised according to the installation dimensions, current parameters, and voltage levels of different power rating UPS (line frequency UPS, high frequency UPS) and server PDUs. The Varnished Insulated Busbar has a compact structure, precisely adaptable to the internal space layout requirements of different UPS models and servers.
Core Technology: Vacuum Hot Press Lamination in a Cleanroom Environment
Material Selection and Pretreatment: We insist on using high-purity, high-ductility rolled copper foil and insulation materials from top global suppliers. All materials undergo rigorous dimensional, appearance, and surface cleanliness testing before entering the cleanroom.
Precision Lamination in a Class 1000 Cleanroom: (Key Difference) The lamination process is completed in a Class 1000 cleanroom with constant temperature and humidity. Using semi-automatic or fully automatic laminating machines, the copper foil and insulation materials are precisely aligned and stacked according to the design drawings. This process requires extremely high environmental cleanliness; even the smallest dust particle or impurity can become a fatal defect in the insulation.
Vacuum Hot Press Forming: The stacked "master blank" is wrapped in a specially designed release membrane and sent to a high-precision vacuum hot press. Under vacuum, through precisely controlled temperature steps and pressure curves, the resin in the insulation material is cured, firmly pressing the layers into a dense, gap-free whole. The vacuum environment ensures no air bubbles remain between layers.
High-precision CNC machining and comprehensive inspection: After lamination, the motherboard blocks are machined using high-precision CNC machine tools to shape the outline, mounting holes, and countersunk holes. Each Bus Bar Solutions for Electrical Power Distribution must undergo rigorous "physical examination," including high-voltage withstand voltage testing, interlayer insulation resistance testing, micro-resistance measurement, and X-ray non-destructive testing to ensure that there are no internal defects.
Application Advantages: Enabling "Hardcore" Upgrades for Critical Power Systems
Value Realisation in High-End UPS Systems
Improved Power Density and Efficiency: Low inductance allows for smaller DC support capacitors and more compact magnetic components, directly reducing UPS size. Reduced losses (especially high-frequency losses) directly improve overall system efficiency.
Enhanced System Stability and Reliability: Reduced switching voltage stress protects expensive IGBT/SiC modules, improves system stability under load fluctuations, and reduces failure rates.
Support for Higher Switching Frequencies: Paves the way for UPS systems using next-generation wide-bandgap semiconductor devices, enabling more efficient and lightweight systems.
Revolutionary Role in Data Center and Server Power Supply
Supporting High-Power Computing Units: Bus Bar for Power Electronics Bunding Solutions provides instantaneous high current for high-dynamic loads such as GPUs and ASICs with extremely low voltage ripple, ensuring computing stability and data integrity.
Optimized Rack Space Utilization: The flat, stacked structure is ideal for cabling in narrow server rack backplanes or sidewalls, freeing up valuable internal space.
Simplified power distribution design: Its inherent filtering characteristics can simplify the design of back-end filtering circuits, reduce the number of components, and improve the reliability of power distribution units.
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