Brass Inner Caps For EV Fuse
The Brass Inner Caps for EV Fuse are critical structural and electrical coordination components within high-voltage/high-current systems. Located in the core area of the fuse, they tightly surround the fusible element and are important engineering components that determine the controllability of fusing behavior, arc extinguishing efficiency, and long-term reliability.
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Product Introduction
The Brass Inner Caps for EV Fuse is a core protective and functional component inside the fuse. It is tightly nested around the outside of the fusible element, forming the "inner core barrier" of the high-voltage circuit protection system for new energy vehicles. Unlike conventional universal inner covers, its design, materials, and manufacturing processes are optimized for the extreme operating conditions of new energy vehicle power systems (battery management system, on-board charging system, and motor control system). Its core functions are to stabilize the installation of the fusible element, isolate internal impurities and moisture, optimize electrical conduction consistency, suppress the generation and spread of arcs at the moment the fuse melts, accelerate the arc extinguishing process, and prevent abnormal continuous power supply, providing a fundamental guarantee for the safe and stable operation of the electric vehicle's high-voltage electrical system.
Design Advantages
Precise Structural Fit
Utilizing an integrated "cylindrical nesting + elastic fit" design, the inner diameter can be customized to the customer's fuse specifications, with tolerances exceeding industry standards. This ensures a tight, secure fit without movement, guaranteeing uniform force distribution and stable arc extinguishing. The chamfered surface design prevents scratches during installation, improving assembly efficiency.
Heat dissipation structure
The inner cover features micro-heat dissipation grooves on its inner wall. Combined with the excellent thermal conductivity of brass, this quickly dissipates heat generated during fuse operation, preventing performance degradation and shortened lifespan due to prolonged overheating. This design is precisely suited to the high-load operating conditions of new energy vehicles.
Mistake-Proof Design
A positioning protrusion at one end of the inner cover precisely matches the positioning groove on the fuse housing, effectively preventing reverse or incorrect installation during assembly. This reduces batch assembly defect rates, improves assembly efficiency, and meets the practical engineering application needs of automated production lines.
Key technical parameters
| Material | H62/H65 Brass |
| Inner Diameter Tolerance | ±0.03mm |
| Insulation Strength | ≥5000V AC |
| Coefficient of Thermal Expansion | 16.5×10⁻⁶/K |
| Contact Resistance | ≤5mΩ |
(Note: Specific parameters can be designed and customized according to customer product requirements)
Application advantages
New Energy Vehicle Compatibility
The product precisely adapts to fuses in key components of new energy vehicles, matching various specifications without requiring adjustments to the installation structure, demonstrating strong compatibility. Its compact and lightweight design allows for flexible installation in tight spaces for high-voltage components.
01
Convenient Engineering Installation
The Brass Inner Caps for EV Fuse features a flexible fit and positioning protrusions, compatible with automated production lines, improving assembly efficiency, mitigating assembly errors, and ensuring high precision. This reduces vibration risks and enhances the stability of high-voltage circuit systems.
02
Cost-Controllable
Utilizing brass material and an integrated manufacturing process, the product offers lower costs and a longer lifespan, reducing maintenance costs. Leveraging the company's supply chain advantages, complementary supply can help customers integrate their supply chains and reduce procurement costs.
03
Multi-Field Compatibility
In addition to being compatible with new energy vehicles, the product can also be used with fuses from other fields. Parameters can be customized and adjusted according to different operating conditions, precisely adapting to the selection needs of various engineering scenarios.
04
Why choose us
Strong Group Strength: As a group enterprise, the company boasts strong financial, technological, and production capacity. With substantial revenue in related industries, it can allocate ample resources to ensure mass Fuse End Caps Brass and eliminate the risk of stockouts due to insufficient capacity.
Rapid Response and Delivery: Free samples are shipped within 1-2 days, new mold samples are completed in 20-30 days, and bulk orders are delivered within 15-20 days with expedited processing available. This efficient response to customer needs for Brass Fuse Cap testing, R&D, and procurement eliminates delivery delays.
Flexible Capacity Adjustment: The company owns a fully automated production workshop and production lines, allowing for flexible capacity adjustments based on order volume. Both batch and small-batch production ensure Fuse Brass Cap consistency, adapting to diverse procurement needs without requiring significant mold investment.
Contact Us
If you have any needs regarding the procurement, selection, sample request, or customization of Brass Inner Caps for EV Fuse, or if you wish to learn more about the product details, please feel free to contact us. We will arrange a professional team to provide one-on-one service, customize adaptation solutions, and ensure stable supply, accurate selection, and efficient procurement.
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