LS Electric has been granted a patent for an arc extinction apparatus for air circuit breakers. The apparatus includes a chamber unit, division unit, filter unit, and cover unit to efficiently discharge internal fluid while filtering out specific materials. The design ensures effective arc extinguishing. GlobalData’s report on LS Electric gives a 360-degree view of the company including its patenting strategy. Buy the report here.

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According to GlobalData’s company profile on LS Electric, Battery management systems was a key innovation area identified from patents. LS Electric's grant share as of January 2024 was 52%. Grant share is based on the ratio of number of grants to total number of patents.

Arc-extinguishing apparatus for air circuit breaker

Source: United States Patent and Trademark Office (USPTO). Credit: LS Electric Co Ltd

The granted patent (Publication Number: US11887799B2) discloses an arc-extinguishing apparatus for an air circuit breaker. The apparatus includes a chamber unit with receiving grooves, a dividing unit with grids and insulating caps, a filter unit for removing substances from the fluid, and a cover unit with discharge holes. The grids divide the fluid path into multiple paths, with ventilation channels defined between them.

Furthermore, the apparatus features a filter unit with first and second filters, where the second filter has a smaller pore size than the first filter. An insulating film with communication holes is placed between the dividing unit and the filter unit. The insulating caps prevent fluid from branching to the top of the grid, ensuring efficient operation. Overall, the design of the arc-extinguishing apparatus aims to enhance the performance and reliability of air circuit breakers by effectively filtering substances and controlling the flow of fluid through the device.

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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.