Patent ID: 11889907
Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
Field: Chemical engineering (Chemistry)
Classification: CPC A  B  H | IPC A  B

Claim 0:
1. A discharge device comprising:
a discharge electrode;
a counter electrode that faces the discharge electrode in a first direction; and
a voltage application unit that applies an application voltage between the discharge electrode and the counter electrode to generate a discharge, wherein
the counter electrode includes:
a dome-shaped electrode recessed to a side opposite to the discharge electrode in the first direction, and
a protruding electrode that protrudes in a second direction intersecting the first direction from an opening edge of an opening of the dome-shaped electrode, the opening being provided at an end opposite to the discharge electrode,

the discharge device forms a discharge path having at least partial dielectric breakdown between the discharge electrode and the protruding electrode when the discharge occurs,
the discharge path includes:
a first dielectric breakdown region generated around the discharge electrode, and
a second dielectric breakdown region generated around the protruding electrode,

a shape of each of the plurality of the protruding electrodes when viewed in the first direction is a triangle, and
a base of the triangle is longer than a perpendicular line from a vertex facing the base to the base.