Custom Solid Power Bus Bar With Insulated Dipping Tube
The Custom Solid Power Bus Bar with Insulated Dipping Tube is a highly reliable conductive busbar solution designed for high-current transmission applications. It is primarily utilized in new energy vehicle powertrains, photovoltaic energy storage systems, industrial power distribution units, and high-density electrical control modules. By combining a highly conductive metal busbar with an insulating dip-coating process, the product achieves an integrated design that offers high conductivity, superior safety isolation, and robust structural stability. It is particularly well-suited for new energy systems that demand exceptional space efficiency, high electrical safety standards, and long-term operational stability.
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Product Introduction
This Custom Solid Power Bus Bar with Insulated Dipping Tube utilizes a solid block of highly conductive copper as its base material, machined via CNC to achieve specific shapes and cross-sections. A continuous, seamless insulating layer is subsequently applied to the surface using a dip-coating process. Unlike traditional sleeving methods, this dip-coating technique conforms perfectly to complex geometries, providing comprehensive and uniform protection. Fully customizable according to customer specifications, the product combines a high-conductivity path with reliable electrical isolation.
Key Technical Features:
Solid, Monolithic Structure: The continuous solid copper body ensures a low-resistance path and maximum mechanical strength, making it ideal for sustained high-current transmission.
Dip-Coated Insulation: The insulation layer, formed through a dipping process, offers uniform thickness and strong adhesion; free from air gaps or overlapping seams, it significantly enhances insulation reliability and moisture resistance.
Adaptability to Complex Shapes: The combination of a solid substrate and the dip-coating process enables the creation of complex structures.
Manufacturing Process: End-to-End Production from Copper Busbar to Thick-Walled Insulation
Copper Busbar Intake and Conductivity Verification
Upon arrival, T2 oxygen-free (or low-oxygen) Plastic Dipping Copper Busbars undergo random sampling to verify conductivity and hardness, ensuring material integrity and eliminating the risk of intergranular corrosion.
01
Precision Forming and Deburring
Processes include CNC punching, bending, and shearing. All hole edges and cut surfaces are treated with specialized deburring equipment to round off sharp edges (radius R ≥ 0.3mm). Burrs must be thoroughly removed, as they create potential points for electric field concentration within the dip-coated layer.
02
Surface Roughening and Activation
Sandblasting or chemical micro-etching is employed to create uniform microscopic surface roughness, enhancing the penetration and mechanical anchoring of the sol. This is followed by ultrasonic cleaning to remove oil, grease, and debris.
03
End Masking and Preheating
In accordance with engineering specifications, contact surfaces at the ends are masked using high-temperature silicone sleeves or aluminum foil. The PVC Coated Bus Bars enter a preheating furnace; temperatures are set based on cross-sectional dimensions to ensure the formation of an appropriate gel layer upon contact with the sol.
04
Dipping and Withdrawal
The preheated Dipping Busbar for Connections is vertically immersed in the sol bath. Immersion time is determined by the required wall thickness (typically 3–10 seconds), followed by withdrawal at a constant speed. The withdrawal speed is regulated by a closed-loop servo control system, maintaining a deviation of ≤2%.
05
Showcasing Details: The Integration of Micro-level Coating Precision and Macro-level Assembly Logic
Coating Uniformity on Sharp Edges and Radiused Corners
Under microscopic inspection, the thickness of the dip-coated layer on bent outer corners and punched edges remains highly consistent with that of flat areas; there is no "edge pull-back" or exposed copper caused by static electricity or surface tension. This demonstrates the exceptional control over powder leveling technology inherent in the fluidized bed process.
Precision Masking of Mounting Holes
For contact surfaces requiring bolted electrical connections, we employ high-temperature-resistant tooling for precise masking before dip coating. The masking edges are clean and uniform, ensuring the purity of the bare copper contact surface while creating a perfect seal for the insulation layer at the hole rim, thereby eliminating any risk of creepage.
Permanently Integrated Surface Markings
For customized products, we incorporate phase identifiers (e.g., DC+/DC-), material codes, and QR codes onto the dip-coated surface using laser engraving or secondary spraying processes. These markings are fused with the insulation layer, offering resistance to abrasion and solvents, and ensuring traceability throughout the Dip Insulated Busbar's entire lifecycle.
Material Advantages
Stable Long-Term Current Carrying
The homogeneous, solid structure eliminates additional contact losses and ensures uniform heat distribution during high-current charging and discharging. Plated PVC Dipping Insulated Copper Busbar offers excellent resistance to thermal creep; the conductor structure remains stable without loosening during prolonged high-temperature operation.
Excellent Fatigue Resistance
The copper features a uniform grain structure and minimal residual stress following CNC bending. It resists fatigue cracking under conditions of prolonged vehicle vibration and cyclic temperature fluctuations, ensuring long-term stability in both structural integrity and electrical conductivity.
Superior Surface Adhesion
Following precision surface activation, the copper substrate bonds strongly with the dip-coated insulation layer, providing a secure foundation. Exposed terminals can be tin- or nickel-plated as required to further enhance corrosion resistance and electrical contact performance.
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The Pure Copper Insulated BusBar features an integrated design combining conductive and insulating elements. It offers a safer, more compact, and highly reliable busbar solution for high-power new energy systems, making it particularly suitable for engineering applications that demand rigorous electrical safety and system stability.
If you are currently designing the electrical architecture for new energy vehicles or energy storage systems, we can provide engineering-grade custom solutions and structural optimization recommendations based on your drawings and system requirements, helping to enhance overall system reliability and integration efficiency.
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