公开(公告)号：US11231312B2

公开(公告)日：2022-01-25

申请号：US16690259

申请日：2019-11-21

申请人： Yazaki Corporation

发明人： Shinpei Kato ,  Shinpei Ando ,  Ryo Hirose ,  Shintaro Nakajima

IPC分类号： G01F23/38

摘要： A liquid level detection device includes a magnet holder having a magnet housed inside a holder body in which a shaft recess is formed; a sensor housing having a shaft portion protruding from the housing body and rotatably supporting the magnet holder; a float arm whose one end is fixed to a magnet holder and whose another end is attached to a float; a Hall IC provided in the sensor housing and detecting a displacement of the magnet; an annular protrusion protruding around the shaft portion from a front surface of the housing body and facing a bottom surface of the holder body; and a recess formed on the bottom surface of the holder body and into which a protruding end of the protrusion is inserted.