Ultrasound sensor
AssigneeDenso Corporation
InventorsAkio Nakano, Muneaki Matsumoto
Life of this patent
Estimating the term…
Abstract
An ultrasound sensor has an ultrasound oscillator which is expandable and contractible in a thickness direction thereof, and a casing which houses therein the ultrasound oscillator. An outer surface of an end portion of the casing is fixed to a mounting member. The side surface of the ultrasound oscillator has at least one of a protrusion portion, a concave portion and an inclined portion, through which one of two end surfaces of the ultrasound oscillator fixedly contacts an inner surface of the end portion of the casing. The side surface of the ultrasound oscillator is substantially parallel with the thickness direction thereof.
Claims16
An ultrasound sensor, comprising:
- an ultrasound oscillator which is expandable and contractible in a thickness direction thereof;
- and
- a casing which houses therein the ultrasound oscillator, an outer surface of an end portion of the casing fixedly contacting a mounting member, wherein:
- the ultrasound oscillator has at least one of a protrusion portion, a concave portion and an inclined portion, through which one of two end surfaces of the ultrasound oscillator fixedly contacts an inner surface of the end portion of the casing,
- the protrusion portion protruding outwards from a side surface of the ultrasound oscillator, the concave portion being recessed from the side surface, the inclined portion being arranged at the side surface and being inclined with respect to the thickness direction of the ultrasound oscillator,
- the two end surfaces of the ultrasound oscillator intersecting the thickness direction of the ultrasound oscillator, the side surface of the ultrasound oscillator being substantially parallel with the thickness direction.
An ultrasound sensor, comprising:
- a substantially column-shaped ultrasound oscillator which is expandable and contractible in an axial direction thereof;
- and
- a casing which has a housing portion and an end portion, the housing portion defining therein a space for housing the ultrasound oscillator, the end portion being positioned at an opening of the housing portion to substantially close the space, wherein
- the ultrasound oscillator has at least one engagement portion, which is arranged at a side surface thereof and engaged with the housing portion in such a manner that one of two end surfaces of the ultrasound oscillator fixedly contacts an inner surface of the end portion of the casing.
Dependencies are inferred from the claim text.