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Sound receiving device

A sound receiving and bonding technology, applied in contact microphone transducers, piezoelectric/electrostrictive transducer microphones, piezoelectric/electrostrictive transducer phono pickups, etc., can solve the problem of not being able to set sound holes And other issues

Pending Publication Date: 2021-11-02
HOSIDEN CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, when the reception room and the waiting room of a hospital etc. are separated by glass or the like, the sound hole is also required to listen to the sound generated in the waiting room in the reception room, but it is often not possible to install the sound hole from a hygienic point of view.

Method used

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  • Sound receiving device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] Below, refer to figure 1 The structure of the sound receiving device 1 of the first embodiment will be described. As shown in this figure, the sound receiving device 1 of the present embodiment is located in a first space (for example, in a car, indoors), and is received by using a predetermined plate 9 (for example, a window glass of a car, a window glass of a house, a reception room and a room). The sound generated in the second space (such as the outside of the car, outdoor) separated from the first space by glass plate, acrylic resin plate, etc. for the waiting room, which contains: metal plate 11 (functioning as one side electrode); Piezoelectric element 12, it is fixed on the upper surface of metal plate 11 via adhesive layer 17; Housing 13, it is the cylindrical shape of upper surface and lower opening (for example can be made into cylindrical shape, square tube shape, arbitrary polygonal cross-section cylindrical), and its upper end surface is bonded to the low...

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PUM

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Abstract

The sound receiving device is located in a first space and receives sound generated in a second space separated from the first space by a predetermined plate. The present invention comprises: a metal plate; the piezoelectric element that is fixed on the upper surface of the metal plate; a shell ,wherein the upper surface and the lower surface of the shell are open, the upper end face of the shell is adhered to the lower surface of the metal plate, and the lower end face of the shell is adhered to the metal plate; the vibration pick-up terminal that is housed in the shell and includes a leg portion bonded to the lower surface of the metal plate, a shaft portion extending downward from the leg portion, and a tip portion formed at the tip of the shaft portion in the downward direction and contacting the plate when the housing is bonded to the plate.

Description

technical field [0001] The present invention relates to a sound receiving device which is located in a first space and receives sound generated in a second space separated from the first space by a predetermined plate. Background technique [0002] As the prior art of the sound pickup microphone, there is, for example, Patent Document 1 and the like (Patent Document 1: Japanese Patent No. 6622638). [0003] The contact microphone assembly of Patent Document 1 is a contact microphone assembly that uses a vibrating element to press a piezoelectric element to convert mechanical vibration into an electrical signal. A vibrator accommodated in the unit case and disposed above the piezoelectric vibrating plate. The vibrator has a spherical portion abutting against the center of the piezoelectric vibrating plate. In the unit case, at least between the piezoelectric vibrating plate and the spherical portion of the vibrator Elastic parts are provided. [0004] For example, if you wa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R17/02
CPCH04R17/025H04R1/46H04R17/02H04R17/04H04R1/323H04R1/342
Inventor 松下勉原野博之粟村竜二中西贤介
Owner HOSIDEN CORP