Ceramic Body For Electric Vehicle Auxiliary Fuse
Products Description
Our Ceramic Body for Electric Vehicle Auxiliary Fuses belongs to the category of industrial precision special ceramics, primarily using high-purity alumina (Al₂O₃ ≥ 95%-99%) as the base material.
Appearance: A pure, bright white colour; the surface is precision-ground, free of cracks and chipping.
Dielectric Properties: Exhibits extremely high insulation resistance and breakdown voltage strength, maintaining extremely low leakage current even under direct current (DC) conditions of hundreds or even thousands of volts.
Geometric Accuracy: Utilising dry pressing or isostatic pressing processes, the inner and outer diameters are highly concentric, facilitating precise pressing of metal end caps on automated assembly lines.
Design & Technical Insights
Micropore Control Technology
We precisely control the porosity during the sintering process. Extremely low porosity effectively prevents the penetration of moisture from the air, preventing insulation failure due to internal dampness.
Optimised End Chamfering
The tube ends are designed with precise guide chamfers. This not only reduces frictional loss with the copper end caps during assembly but also effectively disperses pressing stress.
Optimised Surface Roughness
Controlled surface texture facilitates the adhesion of insulating coatings or markings while providing better gripping force when contacting metal end caps.
Product Advantages Summary – Defining "Uncompromising Safety" for High-Density Battery Packs
| Anti-ageing, zero degradation throughout the entire life cycle | Plastics become brittle, yellow, and experience decreased insulation under long-term battery pack heat radiation; however, Energy Storage Fuse Ceramic Body, after more than ten years of thermal cycling, not only maintain their dielectric properties and mechanical strength but also tends to become more stable due to the slow release of internal stress. |
| Ultimate lightweight and compactness | Thanks to the high strength of the material itself, we can make the tube walls very thin and the outer diameter very small while ensuring pressure resistance. This directly reduces the overall volume of the fuse, contributing valuable space to increase the volumetric energy density (VCT) of the battery pack. |
| Chemical inertness against harsh environments | Whether in the high-salt spray environment of coastal photovoltaic power plants or the oil stains and coolant corrosion of new energy vehicle chassis, the white alumina ceramic body exhibits absolute "immunity," requiring no additional surface anti-corrosion treatment. |
Main Functions: More Than Just a "Shell"
Archive Enclosure and Extinguishing Support
Isolates the fuse element from the external environment, preventing arc ejection and short circuits in adjacent components; simultaneously, the internal cavity shape actively guides the arc into the extinguishing medium area.
01
High-Strength Pressure Resistance
Maintains structural integrity under the high-pressure environment generated by fuse vaporisation and arc until the current completely crosses zero and breaks.
02
Insulation and Withstand Voltage Isolation
Provides high-voltage insulation to adjacent poles or ground when the fuse is normally conducting; reliably isolates the fault side voltage after breaking.
03
Thermal Buffering and Heat Dissipation
Photovoltaic Energy Storage Fuse Ceramic Body has a certain thermal conductivity, helping the fuse to conduct internal heat to the end caps at rated current, avoiding localised overheating accumulation.
04
Support and Positioning
Provides a precise structural reference for positioning the fuse element, arc-extinguishing filler, and metal end caps, ensuring repeatability in automated assembly.
05
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If you are looking for high-reliability ceramic bodies for High Speed Fuses solutions for new energy vehicles, photovoltaic energy storage, and high-voltage DC systems, we can provide more stable and engineered support for your fuse structure design, material matching, and mass production based on actual application scenarios.
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