To provide a sterilizer of refrigeration mechanism in which ultraviolet ray of sterilization means is not leaked out.SOLUTION: This invention relates to a sterilizer device of a refrigeration mechanism having a mechanism constructed and operated in such a way that an emitter insulation body 11 (a first emitter insulation body) is arranged at a side opposite to a heat exchanger 4 of ultraviolet ray emitter 10 in a refrigeration mechanism and further a circumference around the heat exchanger 4 is covered by a heat exchanger shield 6, an insulation lid 21 (a second emitter insulation body) provided with many insulation plates 23 is fixed to an end edge opening 9 of the heat exchanger shield 6 to prevent ultraviolet ray from being leaked out, air is sucked through clearances of the insulation plates 23 of a shield lid 21, strikes against the heat exchanger 4 and the air is cooled there and fed out of the sterilizer device by a fan positioned at an opposite side of an ultraviolet ray emitter 10.SELECTED DRAWING: Figure 3【課題】冷蔵機構の熱交換器殺菌において殺菌手段の紫外線が漏れない殺菌装置を提供する。【解決手段】冷蔵機構内の紫外線発光体１０の熱交換器４と反対側に、発光体遮蔽体１１（第一の発光体遮蔽体）が配置されており、さらに熱交換器４の周囲は熱交換器遮蔽体６で覆われおり、熱交換器遮蔽体６の端縁開口９には遮蔽板２３を多数備えた遮蔽蓋２１（第二の発光体遮蔽体）が取り付けられることにより紫外線が外に漏れることを防ぎ、空気が遮蔽蓋２１の遮蔽板２３の隙間から吸い込まれ、熱交換器４に当たり冷却され、紫外線発光体１０の反対側に位置するファンによって殺菌装置外に送り出される機構を持つ冷蔵機構の殺菌装置。【選択図】図３
