The utility model provides an internal core structure of a humidifier, which relates to the technical field of internal core structures of
humidifiers, and comprises a first buckle, a
core shell arranged on one side of the first buckle, a second
grating arranged on the surface of the
core shell, a second buckle arranged on one side of the first buckle, and a second
grating arranged on the surface of the second buckle. The surface, close to the
moisture inlet and outlet, of the
core shell is provided with the circular holes, the circular holes can effectively protect membrane filaments from being broken due to
impact of high-flow-speed gas, it can be guaranteed that other membrane filaments enter the membrane filament bundle and fully flow on the outer surface, the
grating is located outside the humidifier shell and can be conveniently
cut off after being filled with pouring glue, and therefore the humidifying effect is good. Meanwhile, the circular holes can effectively disperse
impact force of high-flow-speed gas, membrane filaments are prevented from being directly impacted by high-speed gas flow, therefore, the filament breaking phenomenon is reduced, normal work of the humidifier is guaranteed, the grating is located outside the humidifier shell and is convenient to
cut off after being filled with glue, the production technology is simplified, the
machining difficulty and cost are reduced, and the production efficiency is improved. And the production efficiency is improved.