Patent ID: 8632728

Claim:
An ultraviolet ray sterilizer for a water pipe and a waterway configured to be connected at the water pipe or a waterway through which a treatment water to be sterilized flows for thereby sterilizing by radiating ultraviolet rays to the treatment water flowing in the ultraviolet ray sterilizer, comprising: a housing having an upper side and a lower side in which a plurality of cylindrical flow ways connected from an inlet to an outlet are arranged at upper and lower sides in multiple rows, and a pass channel cut-away along a longitudinal direction between neighboring flow ways, and at an upper side of an upper flow way is formed an opening which is open along a longitudinal direction of the housing, and the inlet and the outlet are configured to be connected with the water pipe or the water way in such a way to communicate with the water pipe and the water way; a hanger including a cover covering the opening of the housing, a hanger member extended from an upper side to a lower side as the hanger member is hung on the cover, and a plurality of crystal tubes which each are a tubular member, an end of which is closed and an end of which is open, and which are arranged matching a row of the plurality of cylindrical flow ways of the housing, the plurality of crystal tubes being supported by the hanger member; and an ultraviolet ray lamp including a lamp part inserted into the open end of each crystal tube and a cap part engaged to one end of the lamp part and covering the open end of the crystal tube.