Abstract: A nozzle assembly, an ejecting device and an ejecting method are provided. The nozzle assembly includes an electrode and an insulating body portion. A first fluid channel is arranged in the insulating body portion, an opening is formed on the inner surface. A second fluid channel is arranged between the inner surface of the insulating body portion and the side surface of the electrode. An ejecting outlet is formed on the outer end surface. The second fluid channel is communicated with the first fluid channel at the opening. At least part of the second fluid channel is located between the first fluid channel and the electrode. In the first direction, the opening is located between the first end surface and the second end surface of the electrode.

Abstract: An electrostatic spray device, including: a housing, a tubular member, a nozzle and an airflow providing member. In a first direction from a second end portion to a first end portion of the housing, a second opening of the tubular member is located at a side of a first opening of the housing away from the second end portion. The nozzle is at least partially located in a second accommodating space defined by the tubular member. The nozzle is configured to spray mist towards the second opening through a spray opening, and the mist leaves the electrostatic spray device from the second opening in a charged state. The airflow providing member is configured to provide airflow towards the first opening and the second opening.

Abstract: A nozzle assembly, an ejecting device and an ejecting method are provided. The nozzle assembly includes an electrode and an insulating body portion. A first fluid channel is arranged in the insulating body portion, an opening is formed on the inner surface. A second fluid channel is arranged between the inner surface of the insulating body portion and the side surface of the electrode. An ejecting outlet is formed on the outer end surface. The second fluid channel is communicated with the first fluid channel at the opening. At least part of the second fluid channel is located between the first fluid channel and the electrode. In the first direction, the opening is located between the first end surface and the second end surface of the electrode.