Movable contact part and direct current relay comprising same

A direct current relay, comprising:

• a fixed contact which is energized with an external power source or load;
• and
• a movable contact part which is located below the fixed contact and moves in a direction toward the fixed contact and in a direction opposite to the fixed contact,
• wherein the movable contact part comprises:
• a movable contact which is in contact with or spaced apart from the fixed contact;
• an upper yoke which is located above the movable contact to surround the movable contact;
• and
• a lower yoke which is located below the movable contact to support the movable contact,
• wherein the upper yoke and the lower yoke respectively form a magnetic force that cancels an electromagnetic repulsive force which is generated between the fixed contact and the movable contact, and
• wherein the lower yoke comprises:
• a support part which supports a portion of the movable contact and is formed in a plate shape having a predetermined thickness;
• a lower protrusion defined on the support part, configured to be inserted into a contact groove of a corresponding shape to the lower protrusion that is defined in the upper yoke;
• and
• a wing part which is continuous with any one edge among edges of the support part, supports another portion of the movable contact, extends to the outer side of the any one edge of the support part and has a thickness in a direction toward the movable contact which is smaller than the thickness of the support part in a same direction.