Ultrasonic transceiver and vehicle's surrounding obstruction sensor

• US 20010020389A1
• Filed: 02/01/2001
• Published: 09/13/2001
• Est. Priority Date: 02/02/2000
• Status: Active Grant

• Current Assignee: Mitsubishi Denki Kabushiki Kaisha (Mitsubishi Electric Corporation)
• Original Assignee: Mitsubishi Denki Kabushiki Kaisha (Mitsubishi Electric Corporation)
• Inventors: Fukuda, Akiharu, Nishimoto, Yukio
• Granted Patent: US 6,484,581 B2
• Time in Patent Office: Days
• US Class Current: 73/579
• CPC Class Codes: G01S 7/521 Constructional features
• CPC Class Codes: G10K 11/004 Mounting transducers, e.g. provided with mechanical moving or orienting device mountings specially adapted to a particular sound-producing device, see the preceding groups G10K1/00 - G10K9/00, e.g. G10K1/26, G10K1/28, G10K9/22; arrangements of sonic watch equipment on submarines B63G8/39; buoys B63B22/00
• CPC Class Codes: G10K 11/28 using reflection, e.g. parabolic reflectors

Abstract

A ultrasonic transceiver includes a case for housing a ultrasonic sensor having a transducer provided therein, and a resilient member to be interposed between the case and an ultrasonic sensor. The surface of the case opposing the side surface of the ultrasonic sensor is tapered with respect to the surface of the ultrasonic sensor without involvement of the resilient member.

Claims

1. A ultrasonic transceiver comprising:

a ultrasonic sensor provided with a transducer;

a case for housing said ultrasonic sensor therein; and

a resilient member to be interposed between said case and said ultrasonic sensor;

wherein a surface of said case opposing a side surface of said ultrasonic sensor is tapered with respect to a surface of said ultrasonic sensor without involvement of the resilient member.

2. A ultrasonic transceiver comprising:

a ultrasonic sensor provided with a transducer;

a case for housing said ultrasonic sensor therein;

a resilient member to be interposed between said case and an ultrasonic sensor; and

a tapered section which is formed in said case and opposes a side surface of said ultrasonic sensor exposed from said resilient member;

wherein ultrasonic waves transmitted from said ultrasonic sensor are reflected from the tapered section and transmitted in substantially a forward direction of said ultrasonic sensor.

3. A vehicle-surroundings obstruction sensor comprising:

an ultrasonic transceiver including a case for housing a ultrasonic sensor having a transducer provided therein, a resilient member to be interposed between said case and an ultrasonic sensor, and a tapered section which is formed in said case and opposes a side surface of said ultrasonic sensor exposed from said resilient member; and

a determination section for determining whether obstructions are present, or not, according to a signal output from the ultrasonic transceiver;

wherein ultrasonic waves transmitted from said ultrasonic sensor are reflected from the tapered section and transmitted to the surroundings of the vehicle, so that said determination section detects obstructions located in the surroundings of the vehicle.

4. The vehicle-surroundings obstruction sensor according to

claim 3

, wherein an end section of the tapered section is flush with or higher than an end section of the side surface of said ultrasonic sensor.