Abstract: An electrostatic spraying device includes: a high-voltage generation device for applying a voltage between a spray electrode and a reference electrode; and a controller that controls an output power of the high-voltage generation device based on operation environment information indicating at least one of (i) a surrounding environment of the device and (ii) an operation state of a power supply that supplies power to the device, independently of a current value and a voltage value at the spray electrode and the reference electrode.

Abstract: An aspect of the present invention enables longer use of an electrostatic atomizer by employing a feature for removing foreign objects. An electrostatic atomizer sprays a liquid from a tip of a first electrode of the electrostatic atomizer by applying a voltage between the spray electrode and a reference electrode of the electrostatic atomizer. The electrostatic atomizer includes: a selecting section which selects a cleaning mode or a normal mode, the cleaning mode being for cleaning the reference electrode, the normal mode being for normal operation of the electrostatic atomizer; and a setting section which sets a cleaning voltage so as to be higher than a normal spray voltage, the cleaning voltage being applied in the cleaning mode, the normal spray voltage being applied in the normal mode.

Abstract: A spray device 2 according to one embodiment includes a liquid reservoir 60 that stores the liquid L to be sprayed, a liquid supply unit 58 that supplys the liquid to the liquid reservoir, and a spray unit 62 which is in communication with the liquid reservoir and is configured to spray the liquid in the liquid reservoir, wherein a liquid supply port 582a of the liquid supply unit is arranged in the liquid reservoir in a state where the liquid supply port faces a bottom portion 68 of the liquid reservoir in the liquid reservoir, and is apart from the bottom portion, and the liquid reservoir is opened to atmosphere.

Abstract: An electrostatic spraying device includes: a high-voltage generation device for applying a voltage between a spray electrode and a reference electrode; and a controller that controls an output power of the high-voltage generation device based on operation environment information indicating at least one of (i) a surrounding environment of the device and (ii) an operation state of a power supply that supplies power to the device, independently of a current value and a voltage value at the spray electrode and the reference electrode.

Abstract: An object of the present invention is to provide an electrostatic atomizer variable in arrangement and configuration while being low in cost and uncomplicated. An electrostatic atomizer includes a spray site, a spray electrode (1) electrically connectable to the spray site, a reference electrode (2), and a power supply (4) for applying a voltage between the spray electrode (1) and the reference electrode (2). The reference electrode (2) is arranged such that when a voltage is applied between the spray electrode (1) and the reference electrode (2), matter to be electrostatically atomized is atomized from the spray site. The power supply (4) monitors an electrical property of the spray site, and adjusts the voltage to be applied between the spray electrode (1) and the reference electrode (2) according to a monitored electrical property of the spray site and a predetermined characteristic.

Abstract: An electrostatic atomizing device includes: a spray electrode and a reference electrode across which and the spray electrode a voltage is applied, the reference electrode being provided near the spray electrode, the spray electrode and the reference electrode being provided in an opening and an opening, respectively, which are provided on a device surface of the electrostatic atomizing device, and the opening being provided so as to reduce a ratio in which an atomized substance adheres to the device surface.

Abstract: An electrostatic atomizer (100) includes a spray electrode (1), a reference electrode (2), a control circuit (24) for controlling a value of a current at the reference electrode (2), and a high-voltage generator (22) for applying a voltage between the spray electrode (1) and the reference electrode (2). The control circuit (24) controls the value of the current at the reference electrode (2) so that the value of this current can be higher than a spray current corresponding to a prescribed spray amount of a substance.

Abstract: An electrostatic atomizer (100) includes a guard electrode (4) between an opening (11) and an opening (12). The guard electrode (4) is different from a spray electrode (1) and a reference electrode (2). A voltage between the spray electrode (1) or the reference electrode (2) and the guard electrode (4) is controlled to have a magnitude within a prescribed range smaller than a magnitude of a voltage between the spray electrode (1) and the reference electrode (2).

Abstract: An electrostatic spray device capable of reducing a leakage current is provided. An electrostatic spray device 100 includes a spray electrode 1 configured to spray a material from an end thereof, a reference electrode 2 for allowing voltage application across the spray electrode 1 and the reference electrode 2, a dielectric 10 on which the spray electrode 1 and the reference electrode 2 are provided, and a gap section 11 provided on a surface of the dielectric 10 for providing on the surface of the dielectric 10 a detouring current path between the spray electrode 1 and the reference electrode 2.

Abstract: A chamber (1) and an air conduit (7) connecting a liquid surface retaining hole (5) with an air hole (6) for supplying air from the outside of an electrostatic atomizer (50) to the chamber (1) are provided. When the liquid surface retaining hole (5) is blocked, the liquid supply from a liquid supplying section (3) to the chamber (1) will be stopped. The air conduit (7) has bent sections (8), and a space (10) for holding the liquid is formed in the air conduit (7).

Abstract: An electrostatic atomizer (100) includes: a spray electrode (1); a reference electrode (2); a current control section (24) for controlling a value of a current flowing through the reference electrode (2); and a voltage application section (22) for applying a voltage across the spray electrode (1) and the reference electrode (2), based on the value of the current controlled by the current control section (24), the reference electrode (2) having a tip whose shape has a specific curvature radius.

Abstract: The present invention provides an electrostatic atomizer which can be inspected at low cost. The electrostatic atomizer includes: a PWM signal generating section (27) which generates a PWM signal for controlling a high voltage generating device (22); an identifying section (28) which identifies an on-time of a PWM signal during a certain time; and a reporting section (33) which causes a report to be sent out of the electrostatic atomizer in a case where the on-time identified by the identifying section (28) is larger than a certain value.

Abstract: A chamber (1) and an air conduit (7) connecting a liquid surface retaining hole (5) with an air hole (6) for supplying air from the outside of an electrostatic atomizer (50) to the chamber (1) are provided. When the liquid surface retaining hole (5) is blocked, the liquid supply from a liquid supplying section (3) to the chamber (1) will be stopped. The air conduit (7) has bent sections (8), and a space (10) for holding the liquid is formed in the air conduit (7).

Abstract: An electrostatic atomizer (100) includes a guard electrode (4) between an opening (11) and an opening (12). The guard electrode (4) is different from a spray electrode (1) and a reference electrode (2). A voltage between the spray electrode (1) or the reference electrode (2) and the guard electrode (4) is controlled to have a magnitude within a prescribed range smaller than a magnitude of a voltage between the spray electrode (1) and the reference electrode (2).

Abstract: An electrostatic atomizer (100) includes a spray electrode (1), a reference electrode (2), a control circuit (24) for controlling a value of a current at the reference electrode (2), and a high-voltage generator (22) for applying a voltage between the spray electrode (1) and the reference electrode (2). The control circuit (24) controls the value of the current at the reference electrode (2) so that the value of this current can be higher than a spray current corresponding to a prescribed spray amount of a substance.

Abstract: An electrostatic atomizer (100) includes: a spray electrode (1); a reference electrode (2); a current control section (24) for controlling a value of a current flowing through the reference electrode (2); and a voltage application section (22) for applying a voltage across the spray electrode (1) and the reference electrode (2), based on the value of the current controlled by the current control section (24), the reference electrode (2) having a tip whose shape has a specific curvature radius.

Abstract: An electrostatic atomizing device includes: a spray electrode and a reference electrode across which and the spray electrode a voltage is applied, the reference electrode being provided near the spray electrode, the spray electrode and the reference electrode being provided in an opening and an opening, respectively, which are provided on a device surface of the electrostatic atomizing device, and the opening being provided so as to reduce a ratio in which an atomized substance adheres to the device surface.

Abstract: An electrostatic spray device capable of reducing a leakage current is provided. An electrostatic spray device 100 includes a spray electrode 1 configured to spray a material from an end thereof, a reference electrode 2 for allowing voltage application across the spray electrode 1 and the reference electrode 2, a dielectric 10 on which the spray electrode 1 and the reference electrode 2 are provided, and a gap section 11 provided on a surface of the dielectric 10 for providing on the surface of the dielectric 10 a detouring current path between the spray electrode 1 and the reference electrode 2.

Abstract: An object of the present invention is to provide an electrostatic atomizer variable in arrangement and configuration while being low in cost and uncomplicated. An electrostatic atomizer includes a spray site, a spray electrode (1) electrically connectable to the spray site, a reference electrode (2), and a power supply (4) for applying a voltage between the spray electrode (1) and the reference electrode (2). The reference electrode (2) is arranged such that when a voltage is applied between the spray electrode (1) and the reference electrode (2), matter to be electrostatically atomized is atomized from the spray site. The power supply (4) monitors an electrical property of the spray site, and adjusts the voltage to be applied between the spray electrode (1) and the reference electrode (2) according to a monitored electrical property of the spray site and a predetermined characteristic.