Title:
ULTRASONIC SENSOR
Document Type and Number:
WIPO Patent Application WO/2020/218038
Kind Code:
A1
Abstract:
An ultrasonic sensor (1) has an ultrasonic element (5) for converting an electric signal and ultrasonic vibration, and an element housing case (6) having a bottomed tubular shape and housing the ultrasonic element thereinside. The element housing case includes a side plate portion (61) formed in a tubular shape surrounding a directional center axis (DA), and a bottom plate portion (62) closing one end side of the side plate portion in an axial direction parallel to the directional center axis. The ultrasonic element is attached to the bottom plate portion. A part of a portion of the bottom plate portion located inside the outer contour of the ultrasonic element, when viewed from the directional center axis, is separated from the ultrasonic element, thereby forming spaces (622, 624).
Inventors:
SATAKE MASAYOSHI (JP)
SUZUKI YOUHEI (JP)
KOBAYASHI KENSUKE (JP)
KONDOU DAI (JP)
SUZUKI YOUHEI (JP)
KOBAYASHI KENSUKE (JP)
KONDOU DAI (JP)
Application Number:
PCT/JP2020/016205
Publication Date:
October 29, 2020
Filing Date:
April 10, 2020
Export Citation:
Assignee:
DENSO CORP (JP)
International Classes:
H04R1/02; G01S7/521
Foreign References:
| JP2009055458A | 2009-03-12 |
Attorney, Agent or Firm:
YOU-I PATENT FIRM (JP)
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