Title:
圧力センサ
Document Type and Number:
Japanese Patent JP4278549
Kind Code:
B2
Abstract:
An electric wire insertion hole (41) arranged in a housing (4), an ventilation path of inside space (422) of which one end is opened to a pressure sensor internal space (7) and an intersection portion (421) communicating the both each other are provided. Since the electric wire insertion hole (41) and the intersection (421) intersect at right angles, water or dust entering into the electric wire insertion hole (41) does not enter a lot into the intersection (421). Therefore, water or dust hardly enters into the pressure sensor internal space (7). There is no need of a waterproof or a dustproof filter or the like to prevent water or dust, hence low cost manufacturing can be achieved.
More Like This:
| WO/2020/075600 | PRESSURE SENSOR |
| WO/2019/166605 | PRESSURE SENSOR |
| JP3178826 | Sensor that detects temperature and pressure by wireless transmission and reception |
Inventors:
Toyama Shuji
Hayato Kobayashi
Ikuya Miyahara
Hayato Kobayashi
Ikuya Miyahara
Application Number:
JP2004100100A
Publication Date:
June 17, 2009
Filing Date:
March 30, 2004
Export Citation:
Assignee:
Nagano Keiki Co., Ltd.
International Classes:
G01L19/14; G01L9/00; G01L13/02
Domestic Patent References:
| JP8240495A | ||||
| JP8297064A | ||||
| JP7294355A | ||||
| JP9043085A | ||||
| JP1037635U |
Attorney, Agent or Firm:
Intellectual Property Office
Kinoshita Minoru
Kanji Nakayama
Tsuyoshi Ishizaki
Kinoshita Minoru
Kanji Nakayama
Tsuyoshi Ishizaki