Patent ID: 8410453

Claim:
An ultraviolet sterilizer having a vibration-proof function, comprising: a housing having an inlet through which ballast water is drawn into the housing, and an outlet through which the ballast water is discharged therefrom after the ballast water has been sterilized; an ultraviolet sterilization unit provided inside the housing, the ultraviolet sterilization unit including an ultraviolet lamp applying ultraviolet rays to the ballast water to sterilize the ballast water, and a sleeve pipe enclosing the ultraviolet lamp to protect the ultraviolet lamp; a cap supporting each of opposite ends of the ultraviolet sterilization unit, one of the ends being a corresponding end of the sleeve pipe, wherein the sleeve pipe is watertightly supported at the corresponding end thereof by the cap such that the ballast water is prevented from being introduced into the sleeve pipe; and a shock absorption unit having a first end elastically compressed by the cap and a second end elastically compressing a corresponding end of the ultraviolet lamp.