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Ultrasonic input/output element

An input and output, ultrasonic technology, applied in the direction of sound wave reradiation, radio wave measurement system, frequency/direction characteristic device, etc., can solve the problems that cannot be used for detection

Inactive Publication Date: 2018-04-17
AISIN SEIKI KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

That is, this technology only uses the piezoelectric element as a speaker, so it cannot be used to detect intruders entering vehicles or buildings

Method used

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  • Ultrasonic input/output element
  • Ultrasonic input/output element
  • Ultrasonic input/output element

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0024] figure 1 A perspective view of the ultrasonic input / output device 1 of the present embodiment is shown in FIG. figure 2 A side sectional view of the ultrasonic input / output element 1 is shown in . image 3 The diagram expanded in each part is shown in. Such as Figure 1 ~ Figure 3 As shown, the ultrasonic input / output element 1 is configured to include a vibrator 10 , a housing 30 , and a case 50 .

[0025] At least two vibrating units 10 are provided. In this embodiment, a case will be described in which the vibrator 10 is composed of two vibrators, the first vibrator 11 and the second vibrator 21 . Hereinafter, the first vibrating unit 11 and the second vibrating unit 21 will be described as the vibrating unit 10 when there is no need to distinguish them, and will be described as the first vibrating unit 11 and the second vibrating unit 21 when they are separately distinguished.

[0026] The first vibrating unit 11 outputs ultrasonic waves of a first frequency, ...

no. 2 approach

[0049] Next, a second embodiment will be described. In the above-mentioned first embodiment, the case where the first case 31 and the second case 32 are housed inside the case 50 with the cushioning member 40 interposed therebetween has been described, but the shape of the cushioning member 40 It is different between the first embodiment and the second embodiment. In the first embodiment, no protruding portion protruding in the radial direction is provided on the inner peripheral surface and the outer peripheral surface of the cushioning member 40 , and the outer peripheral surface of the cushioning member 40 is in contact with the inner erected portion 43 , so that the cushioning member 40 The inner peripheral surface is in contact with the cylindrical portion 62 , but in the present embodiment, protrusions protruding in the radial direction are respectively provided on the inner peripheral surface and the outer peripheral surface of the cushioning member 40 . The other conf...

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Abstract

An ultrasonic input / output element for detecting a person approaching a vehicle or a building and notifying the approaching person is provided with: at least a first vibration unit for outputting an ultrasonic wave of a first frequency and acquiring a reflected wave that corresponds to the outputted ultrasonic wave and a second vibration unit for outputting an ultrasonic wave of a second frequencydifferent from the first frequency and acquiring a reflected wave that corresponds to the outputted ultrasonic wave of the second frequency; a case 30 in which each of the vibration units is separately disposed; and one housing in which each of the cases is accommodated, with a cushioning member interposed therebetween.

Description

technical field [0001] The present invention relates to an ultrasonic input / output element that outputs ultrasonic waves and acquires reflected waves corresponding to the output ultrasonic waves. Background technique [0002] Conventionally, techniques for detecting objects around vehicles and homes using vibration waves such as ultrasonic waves have been used. As such techniques, there are techniques described in Patent Documents 1 and 2, for example. [0003] In the safety device described in Patent Document 1, there is an ultrasonic transmitter that emits ultrasonic waves toward the direction of the driver's seat and the direction of the passenger seat near the rearview mirror on the upper part of the front seat of the vehicle, and the ultrasonic receiver receives the reflected waves of the emitted ultrasonic waves. for anomaly detection. The sound signal received by the ultrasonic receiver is output to the outside by the sound output unit. In addition, the clock with ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R1/24G01S7/521G01S15/87G08B13/16G08B21/00H04R1/32H04R1/40G01S15/931
CPCG08B13/16G08B21/00H04R1/24H04R1/32H04R1/40B06B1/0625G01S15/931G01S7/521
Inventor 菅江一平家田清一
Owner AISIN SEIKI KK