Impeller and method of manufacturing the same

The present disclosure relates to an impeller and a method of manufacturing the same. The impeller in one embodiment includes: a hub in which a plurality of spiral first slots are formed; a shroud which is positioned opposite the hub, and has a plurality of spiral second slots formed therein; and a plurality of blades which are coupled to the hub and the shroud, and have an upper protrusion formed on one side and a lower protrusion formed on the other side, wherein the upper protrusion is inserted into and coupled to a first hole formed in the first slot, and the lower protrusion is inserted into and coupled to a second hole formed in the second slot. Accordingly, the structural strength of the impeller and manufacturing quality can be improved. 本发明涉及一种叶轮及其制造方法。本发明的一实施例的叶轮包括：轮毂，其形成有复数个螺旋形的第一狭槽部；护罩，其与轮毂相对设置，并且形成有复数个螺旋形的第二狭槽部；以及复数个叶片，其与轮毂和护罩结合，在其一侧面形成有上端凸出部，而在其另一侧面形成有下端凸出部，上端凸出部可以插入并结合于形成在第一狭槽部的第一孔，下端凸出部可以插入并结合于形成在第二狭槽部的第二孔。因此，能够增加叶轮的结构强度并能够提高制造品质。