Pogo pin for super high current

A pogo pin for an ultra-high current, the pogo pin comprising:

• a first plunger;
• a coil spring configured to elastically support the first plunger;
• and
• an outer cylinder allowing the coil spring to be mounted therein and configured to guide sliding of the first plunger,
• wherein a plurality of brushes is provided on one end of the first plunger such that the plurality of brushes is capable of sliding while elastically contacting an inner surface of the outer cylinder,
• wherein a part of each of the brushes in contact with the outer cylinder or a vicinity of each brush in contact with the outer cylinder is chamfered,
• wherein each brush comprises a first plane facing the inner surface of the outer cylinder and a second plane parallel to the first plane and located at a side opposite to the first plane,
• wherein an outline of the first plane on an end part of each brush is a convex first curve crossing a width direction of each brush, and an outline of the second plane on the end part of the brush is a convex second curve crossing the width direction of each brush,
• wherein a curved surface (S3) in contact with the first curve is formed between the first plane and the second plane on the end part of each brush,
• wherein the curved surface (S3) is formed to be oblique rather than perpendicular to the first plane and the second plane so that an area of contact of the curved surface (S3) with the outer cylinder is increased,
• wherein the first plunger made of a flat metal material forms a hollow cylindrical body.