Humidifying device and humidifying method for air-conditioning unit

A humidifying device for an air-conditioning unit, comprising:

• a humidifying box, wherein a flocculating cavity and a humidifying cavity are respectively defined in the humidifying box;
• a connecting piece arranged in the humidifying cavity, wherein the connecting piece comprises a connecting coiled pipe fixedly connected to an inner wall of a top end of the humidifying cavity, an air inlet end of the connecting coiled pipe extends out of the humidifying cavity to be selectively communicated with an air-conditioner indoor unit or an air-conditioner outdoor unit, and an air outlet end of the connecting coiled pipe extends into the flocculating cavity;
• a flocculating piece arranged in the flocculating cavity, wherein the flocculating piece comprises a flocculating cylinder rotatably connected with the flocculating cavity, the flocculating cylinder is provided with a plurality of flocculating holes, and one end of the connecting coiled pipe extending into the flocculating cavity is in transmission connection with the flocculating cylinder;
• and
• a heat exchanging piece arranged in the humidifying cavity, wherein the heat exchanging piece is used for exchanging heat between the humidifying cavity and the flocculating cavity, and the heat exchanging piece comprises a supporting shell fixedly connected in the humidifying cavity, and the supporting shell is provided with a plurality of supporting holes, and a vibrating piece is arranged in the supporting shell.