Disclosed is a dental light curing machine, including a first valve housing, a second valve housing assembled with the first valve housing to commonly define a mounting space, a light emitting module mounted within the mounting space, and a working module. The first valve housing and the second valve housing are formed with a first restriction rib and a second restriction rib respectively. The first restriction rib and the second restriction rib partition the mounting space into a first section and a second section, and the light emitting module is mounted in the second section and electrically connected with the working module in order to be controlled to generate a curing light. The light emitting module has a main radiator, a secondary radiator disposed on the main radiator and a light emitting crystal disposed on the secondary radiator the main radiator is further formed with a hollow heat-dissipating channel and a cooling fan disposed in the heat-dissipating channel.一種牙科用光固化機,包含有一第一瓣殼、一與該第一瓣殼組裝而共同界定出一安裝空間的第二瓣殼及一裝配於該安裝空間內的一發光模組以及一工作模組。該第一瓣殼與該第二瓣殼分別形成有一第一限制肋與一第二限制肋,該第一限制肋與該第二限制肋將該安裝空間區分成一第一區段及一第二區段,而該發光模組則裝配於該第二區段中,並與該工作模組電性連接以受控制產生一固化光線,該發光模組具有一主散熱器、一設於該主散熱器上的次散熱器及一設於該次散熱器上的發光晶體,該主散熱器更中空成形有一散熱通道,及一設於該散熱通道內的散熱風扇。10‧‧‧第一瓣殼101‧‧‧第一支撐肋102‧‧‧第一限制肋103‧‧‧進氣通孔104‧‧‧出氣通孔105‧‧‧第一缺口106‧‧‧安裝肋11‧‧‧第二瓣殼111‧‧‧第二支撐肋112‧‧‧第二限制肋113‧‧‧進氣通孔114‧‧‧出氣通孔115‧‧‧第二缺口116‧‧‧安裝肋2‧‧‧發光模組221‧‧‧散熱座223‧‧‧散熱柱225‧‧‧散熱平台227‧‧‧散熱風扇23‧‧‧次散熱器31‧‧‧控制板311‧‧‧工作主板312‧‧‧工作子板32‧‧‧儲電元件4‧‧‧操作面板41‧‧‧顯示面板42‧‧‧操作按鈕5‧‧‧遮罩51‧‧‧安裝通道6‧‧‧導光件61‧‧‧導光段62‧‧‧出光段8‧‧‧輔助瓣殼81‧‧‧充電接點82‧‧‧充電電力線
