公开(公告)号：US20220291029A1

公开(公告)日：2022-09-15

申请号：US17641681

申请日：2020-09-11

Applicant: KOA CORPORATION

Inventor： Koji UENOYAMA ,  Shigeo GOTOH ,  Yoji KOBAYASHI

IPC: G01F1/69 ,  G01F15/12 ,  G01F15/18

Abstract: An object is to provide a flow sensing device improved in weather resistance and insect resistance. A flow sensing device includes: a cover member; a cap member disposed below the cover member; a foreign-body intrusion prevention net surrounding a space between the cover member and the cap member; a light emitting element disposed in a housing space surrounded by the cover member, the cap member, and the foreign-body intrusion prevention net; and a sensing element disposed inside the foreign-body intrusion prevention net in the housing space, the sensing element including a thermosensitive resistive element.