公开(公告)号：US11889907B2

公开(公告)日：2024-02-06

申请号：US17260497

申请日：2019-02-04

申请人： Panasonic Intellectual Property Management Co., Ltd.

发明人： Hiroyuki Inoue ,  Yohei Ishigami ,  Masato Kinoshita ,  Aya Ishihara ,  Yasunori Matsui ,  Hayato Kikuchi

IPC分类号： A45D20/12 ,  A45D20/50 ,  B05B5/00 ,  B05B5/057 ,  B05B5/16

CPC分类号： A45D20/12 ,  A45D20/50 ,  B05B5/001 ,  B05B5/057 ,  B05B5/1691 ,  A45D2200/202

摘要： A discharge device includes a discharge electrode, a counter electrode that faces the discharge electrode in a first direction, and voltage application unit that applies an application voltage between the discharge electrode and the counter electrode. The counter electrode includes a dome-shaped electrode having a recessed inner surface 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.