LS Electric has filed a patent for an arc extinguishing assembly. The assembly includes side members, an exhaust, a plurality of grids, an arc guide, and a magnet. The grids are installed between the side members and the magnet forms an electromagnetic force towards the grids. The invention aims to improve circuit breaker technology. 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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Arc extinguishing assembly with grids, arc guide, and magnet
A recently filed patent (Publication Number: US20230317383A1) describes an arc extinguishing assembly and a circuit breaker incorporating this assembly. The assembly consists of side members facing each other, an exhaust installed on the upper part of the side members, a plurality of grids fixed between the side members, an arc guide coupled to one side of the side member and installed under the grids, and a magnet installed under the grids with both ends respectively coupled to the side members. The magnet generates an electromagnetic force towards the grid.
The magnet in the assembly is composed of an electromagnet and a permanent magnet. The electromagnet is fixed to the lower part of the side member and forms a magnetic field when magnetized by an electric current. The permanent magnet is installed inside the electromagnet and rotates in a direction perpendicular to the extension direction of the electromagnet.
The electromagnet is made of a cylindrical magnetizable material and is surrounded by a coil that extends in a shape around the outer surface of the core. Fixing shafts are formed at both ends of the core, protruding to be supported by the inner surface of each side member. The fixing shaft passes through the arc guide and is seated in a fixing groove formed in the side member.
The permanent magnet is located in a space formed inside the electromagnet, known as the permanent magnet accommodating portion. It can be composed of at least one permanent magnet.
In addition to the arc extinguishing assembly, the patent also describes a circuit breaker incorporating this assembly. The circuit breaker includes a stationary contact, a movable contact that moves towards or away from the stationary contact, and the arc extinguishing assembly located adjacent to the contacts to extinguish the arc generated when they are spaced apart.
Overall, this patent presents an innovative arc extinguishing assembly and its application in a circuit breaker. The use of both an electromagnet and a permanent magnet in the assembly allows for effective arc extinguishing. The design and configuration of the components ensure efficient operation and safety in circuit breaker applications.
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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.
