Copper Laminated Bar
Laminated Busbar, also known as composite busbar, is an efficient power transmission component. It adopts a multi-layer superposition design of conductive materials, and separates each conductive layer by insulating materials, providing a compact, low-inductance, and high-reliability power transmission solution for modern power systems, electronic equipment, etc.
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Product Introduction
Product Profile
A copper laminated bar is typically composed of multiple layers of copper laminates. These laminates are carefully bonded together to form a solid and reliable structure. The use of copper as the primary material is due to its excellent electrical conductivity, which is crucial for applications where efficient electrical transfer is required. Each laminate is precision - made to ensure a consistent thickness and quality, contributing to the overall performance of the bar.
Product structure
Product structure
Multiple conductive layers
Laminated busbars are made of multiple layers of copper foil or aluminum foil as conductive layers. These conductive layers are carefully designed and laid out according to actual current carrying needs and electrical connection requirements. Copper foil has high electrical conductivity, good thermal conductivity and corrosion resistance, while aluminum foil has certain advantages in cost and weight and is suitable for different application scenarios.The thickness of each conductive layer is precisely calculated to ensure that the overall size and weight of the busbar can be effectively controlled while meeting the current carrying capacity.
insulation material
The insulating layer plays a vital role in the laminated busbar. It reliably separates the conductive layers and prevents short circuits between layers. We use high-performance insulation materials, such as polyester film (PET), polyimide film (PI), etc.These insulating materials have high dielectric strength, low dielectric constant, good heat resistance and chemical stability, and can work stably for a long time in complex electrical environments. The thickness and uniformity of the insulation layer are also strictly controlled to ensure consistent insulation performance.
Quality and service
Working principle
| Low inductance characteristics | Due to the multi-layer conductive layer structure of the laminated copper bar, the way the current is distributed between the layers results in a significant reduction in the inductance value. When current passes through the busbar, the direction of the current in each conductive layer is opposite. According to the principle of electromagnetic induction, the generated magnetic fields cancel each other out, thus reducing the inductance effect. |
| Heat conduction principle | Due to the high thermal conductivity of copper, heat is conducted along the copper laminated rods. The heat conduction inside the copper laminated rod follows Fourier's law of heat conduction, that is, the heat flux density is proportional to the temperature gradient. Heat will spread from areas with higher temperatures (such as areas with higher current density) to areas with lower temperatures. This thermal conductivity property helps to quickly transfer locally generated heat and prevent local overheating of the copper laminated rod. |
Application areas
| Power System | In power facilities such as substations and power plants, laminated copper bar are used for internal busbar connections in high-voltage switch cabinets, distribution cabinets and other equipment. Its high current carrying capacity and low inductance characteristics help improve the stability and reliability of the power system and reduce power losses. |
| Industrial Automation | Frequency converters, servo drives, etc. in industrial automation equipment require efficient power transmission and distribution components. The compact structure and good electrical performance of the laminated busbar can meet the installation requirements of these equipment in a small space and improve the operating efficiency of the equipment. |
| Electric Car | Core components such as battery management systems and motor controllers of electric vehicles are inseparable from laminated busbars. It can achieve efficient connection between battery modules in a limited space, while reducing electromagnetic interference and improving vehicle performance and safety. |
Our Partners
Laminated busbars are widely used in power systems, such as substation switch cabinets; industrial automation equipment, such as inverters; battery management systems and motor controllers for electric vehicles; power distribution units for communication equipment; and traction and auxiliary power supply for rail transit vehicles. Systems and many other fields, it is an indispensable component of modern power transmission.
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