公开(公告)号：US11781935B2

公开(公告)日：2023-10-10

申请号：US17721842

申请日：2022-04-15

Applicant: MITUTOYO CORPORATION

Inventor： Hiroyuki Hayashi

IPC: G01M3/16 ,  G01B21/22

CPC classification number: G01M3/16 ,  G01B21/22

Abstract: There is provided a housing unit having an immersion detection function, as a housing of an electronic device requiring waterproofing.
A housing unit includes a casing liquid-tightly defining an internal housing space and housing an internal device in the housing space, and an immersion detector that detects whether liquid leak into the housing space of the casing. The casing includes a sealing means for waterproofing a joint, an entryway, or an opening. The immersion detector includes an electrolyte salt and a continuity detector that detects a change in conductivity when the liquid comes into contact with the electrolyte salt. The electrolyte salt is arranged inside the casing and further inside the casing than the sealing means.

公开(公告)号：US20220334018A1

公开(公告)日：2022-10-20

申请号：US17721842

申请日：2022-04-15

Applicant: MITUTOYO CORPORATION

Inventor： Hiroyuki Hayashi

IPC: G01M3/16 ,  G01B21/22

Abstract: There is provided a housing unit having an immersion detection function, as a housing of an electronic device requiring waterproofing.
A housing unit includes a casing liquid-tightly defining an internal housing space and housing an internal device in the housing space, and an immersion detector that detects whether liquid leak into the housing space of the casing, The casing includes a sealing means for waterproofing a joint, an entryway, or an opening. The immersion detector includes an electrolyte salt and a continuity detector that detects a change in conductivity when the liquid comes into contact with the electrolyte salt. The electrolyte salt is arranged inside the casing and further inside the casing than the sealing means.