Title:
PHYSICAL QUANTITY MEASURING DEVICE
Document Type and Number:
Japanese Patent JP2020201053
Kind Code:
A
Abstract:
To provide a physical quantity measuring device capable of providing a communication passage through which additives are exposed.SOLUTION: A physical quantity measuring device 1 includes: a sensor 13 for detecting a physical quantity of gas; and a housing 10 that is formed of a resin to which an additive 113 is mixed and that covers the sensor. The housing is provided with a communication passage 111 that communicates the inside and the outside. The additive is exposed to the communication passage. The physical quantity measuring device has a non-woven fabric-like structure formed by the exposed additive. Due to the non-woven structure, the communication passage is waterproof and moisture permeable.SELECTED DRAWING: Figure 1
Inventors:
SAITO TOMOAKI
UENODAN AKIRA
UENODAN AKIRA
Application Number:
JP2019106186A
Publication Date:
December 17, 2020
Filing Date:
June 06, 2019
Export Citation:
Assignee:
HITACHI AUTOMOTIVE SYSTEMS LTD
International Classes:
G01L19/14; G01K1/08; G01M15/02
Attorney, Agent or Firm:
Wilfort International Patent Office