Electrostatic electroacoustic transducer

Abstract

To provide a flexible electrostatic electroacoustic transducer that can generate sound waves with excellent sound quality and a low incidence of short-circuit failures. [Solution] A flexible electrostatic electroacoustic transducer having a pair of opposing conductive layers and a dielectric layer disposed between the pair of opposing conductive layers, An electrostatic electroacoustic transducer is provided, wherein one or both of the opposing pair of conductive layers are fibrous structures in which conductive material-containing layers are arranged on one or both sides.

Claims

1. A flexible electrostatic electroacoustic transducer having a pair of opposing conductive layers and a dielectric layer disposed between the pair of opposing conductive layers, An electrostatic electroacoustic transducer in which one or both of the pair of opposing conductive layers are fibrous structures having conductive material-containing layers arranged on one or both sides.

2. The electrostatic electroacoustic transducer according to claim 1, wherein the fibrous structure is a nonwoven fabric.

3. The electrostatic electroacoustic transducer according to claim 1, wherein the fibrous structure is a woven fabric.

4. The electrostatic electroacoustic transducer according to claim 1 or 2, wherein the conductive material-containing layer is present only on one surface of the fibrous structure.

5. The electrostatic electroacoustic transducer according to claim 1 or 2, wherein the conductive material-containing layer is present on both surfaces of the fiber structure.

6. The electrostatic electroacoustic transducer according to claim 1 or 2, wherein the conductive material is selected from at least one of aluminum, copper, silver, nickel, zinc, and chromium.

7. The electrostatic electroacoustic transducer according to claim 1 or 2, wherein the resistance value of the conductive layer is 500 Ω□ or less.

8. The electrostatic electroacoustic transducer according to claim 4, wherein the conductive material is deposited onto the fibrous structure.

9. The electrostatic electroacoustic transducer according to claim 5, wherein the conductive material is plated onto the fiber structure.

10. The permeability of the conductive layer is 20 cm ３ / cm ２ / s ~ 300cm ３ / cm ２ An electrostatic electroacoustic transducer according to claim 1 or 2, wherein the speed is / s.

11. The electrostatic electroacoustic transducer according to claim 1 or 2, wherein the melting point of the fibers constituting the fiber structure is 200°C or higher.

12. The electrostatic electroacoustic transducer according to claim 1 or 2, wherein the dielectric layer and one or both of the pair of conductive layers are bonded to each other, and the bonding area is 20% to 70% based on the area where the conductive layer and the dielectric layer face each other.

13. The electrostatic electroacoustic transducer according to claim 1 or 2, wherein the aperture ratio of the conductive layer is 0 to 25%.

14. The electrostatic electroacoustic transducer according to claim 13, wherein the aperture ratio of the conductive layer is 0% or more and 10% or less.

15. The electrostatic electroacoustic transducer according to claim 13, wherein the aperture ratio of the conductive layer is greater than 10% and less than or equal to 25%.

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