Ice maker and refrigerator

An ice maker comprising:

• a first assembly comprising a first tray that defines first portions of a plurality of ice making chambers;
• a second assembly configured to rotate relative to the first assembly about a rotation shaft, the second assembly comprising a second tray that defines second portions of the plurality of ice making chambers;
• and
• a first ejector that is disposed at a fixed position and configured, based on the second assembly rotating away from the first assembly, to push the second tray to thereby discharge at least one ice piece from the plurality of ice making chambers,
• wherein the first ejector comprises a plurality of first ejector pins, each of the plurality of first ejector pins comprising (i) a first ejector pin end configured to make contact with the second tray and (ii) a first ejector pin body that extends from the first ejector pin end in a direction inclined with respect to a horizontal line passing through a center of an ice making chamber,
• wherein the ice making chamber is defined based on one of the first portions and a corresponding one of the second portions being joined,
• wherein the second assembly further comprises a support configured to contact a first portion of the second tray, the support defining a plurality of first ejector openings exposing second portions of the second tray, the second portions of the second tray being configured to be pushed by the first ejector,
• wherein each of the plurality of first ejector pins is configured, based on the second assembly rotating away from the first assembly, to pass through a corresponding one of the plurality of first ejector openings to thereby discharge an ice piece form the ice making chamber, and
• wherein the first ejector pin body is curved to correspond to a trajectory of the plurality of first ejector openings.