Arc path formation unit and direct current relay comprising same
AssigneeLs E-Mobility Solutions Co., Ltd.
InventorJung Woo YOO
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Abstract
The present disclosure provides an arc path formation unit, which can effectively guide a generated arc to the outside, and a direct current relay comprising same, the arch path formation unit comprising: a magnetic frame; and a Halbach array arranged to be adjacent to the inner circumferential surface of the magnetic frame so as to form a magnetic field inside the magnetic frame, wherein the Halbach array includes first, second and third blocks, which are arranged to be parallel in one direction, and the first block has a surface facing the third block, which is magnetized with a polarity opposite to that of the surface of the third block facing the first block.
Claims12
An arc path formation unit comprising:
- a magnetic frame having a space portion formed therein in which a fixed contact and a movable contact are accommodated;
- and
- a Halbach array comprising a plurality of blocks producing magnetic fields in the space portion, arranged adjacent to an inner circumferential surface of the magnetic frame, arranged in parallel in one direction, and formed of a magnetic material,
- wherein the Halbach array comprises:
- a first block;
- a second block arranged to overlap the first block in the one direction;
- and
- a third block located to face the first block with the second block arranged therebetween, and
- a surface, facing the third block, of the first block is magnetized with a polarity opposite to that of a surface, facing the first block, of the third block.
A direct current (DC) relay comprising:
- a plurality of fixed contacts located with being spaced apart from each other;
- a movable contact brought into contact with or separated from the fixed contacts;
- a magnetic frame having a space portion formed therein in which the fixed contacts and the movable contact are accommodated;
- and
- a Halbach array comprising a plurality of blocks producing magnetic fields in the space portion, arranged adjacent to an inner circumferential surface of the magnetic frame, arranged in parallel in one direction, and formed of a magnetic material,
- wherein the Halbach array comprises:
- a first block;
- a second block arranged to overlap the first block in the one direction;
- and
- a third block located to face the first block with the second block arranged therebetween, and
- a surface, facing the third block, of the first block is magnetized with a polarity opposite to that of a surface, facing the first block, of the third block.
Dependencies are inferred from the claim text.