Halbach Arc Path Structure for Outward DC Relay Arc Discharge

The patent applies asymmetry by configuring permanent magnets with specific polarity arrangements that create a unidirectional magnetic field pattern. The magnets are positioned and oriented asymmetrically relative to the contact points, ensuring that regardless of current direction, the resulting electromagnetic force consistently directs arcs outward away from the central portion. This asymmetric configuration eliminates the bidirectional force problem of conventional symmetric magnet arrangements.

The patent implements local quality by providing different permanent magnet configurations at different locations within the relay. Each contact point has specifically oriented magnets tailored to its position, creating localized magnetic field patterns that ensure outward arc discharge for each specific contact location. This localized optimization ensures reliable arc control at each point rather than using a uniform magnet arrangement throughout.

The patent applies preliminary anti-action by pre-configuring the permanent magnets and their polarities to counteract the potential harmful effect of inward-directed arcs before the arc discharge process begins. The magnetic field is pre-established with a pattern that anticipates and prevents arcs from moving toward the central portion, where drive unit components are located. This preventive configuration ensures arcs are always directed outward away from vulnerable components.

The patent converts the potentially harmful electromagnetic force that could direct arcs inward into a beneficial force by strategically positioning and orienting permanent magnets. The same electromagnetic interaction that could cause damage is reconfigured to reliably propel arcs outward. The magnetic field pattern is designed so that the electromagnetic force, rather than being a harmful factor, becomes a controlled mechanism for safe arc discharge away from internal components.

The patent merges the functions of multiple permanent magnets into a unified magnetic field pattern that works synergistically. By combining several magnets with specific polarity arrangements, the patent creates a composite magnetic field that is stronger and more controllable than individual magnets could produce alone. This merged configuration enhances magnetic field strength while maintaining the elongated space part geometry for proper arc discharge path control.

The patent employs a composite magnetic structure using multiple permanent magnets with different polarities arranged in a specific pattern. This composite magnet system creates a magnetic field with both sufficient strength and the desired directional characteristics. The combination of different magnet polarities and orientations produces a composite magnetic field that overcomes the weakness that would result from the elongated space configuration alone.