Waterproof microphone

A microphone and waterproof technology, which is applied in the field of microphones, can solve the problems of microphone damage and short service life of the microphone, and achieve the effects of long life, wide application range and enhanced waterproof performance

Inactive Publication Date: 2014-10-22
NINGBO SINGLONG ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] This design makes the microphone damaged when used in wet o

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Prepare a 20% polyamino modified resin aqueous solution for use. The acrylic fabric matrix with a pore size of 200 mesh is completely immersed in the prepared aqueous solution of polyamino modified resin, and then padding is carried out 5 times with a rolling mill. The rolling pressure is controlled to 0.1MPa and the rolling margin is 50%, so that the film forming agent is coated Covered on the fabric base. Then bake in a toaster at a baking temperature of 200°C for 10 minutes. Afterwards, the fabric substrate was completely immersed in the ethyl acetate solution of vinyl / amino co-modified silicone oil with a concentration of 5%, and then padding was carried out 4 times with a rolling mill. The rolling pressure was also controlled at 0.1 MPa, and the rolling margin was 50. %, the waterproofing agent is coated on the fabric substrate. Finally, the fabric was baked in a baking machine at a baking temperature of 140°C for 20 minutes, and dried to obtain a waterproof membr...

Embodiment 2

[0045] Prepare a 30% concentration of methyl acrylate copolymer aqueous solution for use. The polyester fabric matrix with a pore size of 300 mesh is completely immersed in the prepared methyl acrylate copolymer aqueous solution, and then padding is carried out 3 times with a rolling mill. The rolling pressure is controlled to 0.2MPa and the rolling margin is 65%, so that the film forming agent is coated Covered on the fabric base. Then it was baked in a toaster at a baking temperature of 210°C for 8 minutes. After that, the fabric substrate is completely immersed in the ethyl acetate solution of 10% vinyl / amino co-modified silicone oil, and then padding is carried out 3 times. The rolling pressure is also controlled at 0.2MPa, and the rolling margin is 65%. The waterproofing agent is coated on the fabric substrate. Finally, it was baked in a baking machine at a baking temperature of 160°C for 18 minutes and dried to obtain a waterproof membrane.

Embodiment 3

[0047] Prepare a 35% concentration ethylene / vinyl acetate polymerization wax aqueous solution for use. The nylon fabric substrate with a pore size of 350 mesh is completely immersed in the prepared ethylene / vinyl acetate polymerization wax aqueous solution, and then padding is carried out twice by a rolling mill. The rolling pressure is controlled to 0.3MPa and the rolling margin is 70% to form a film. The agent is coated on the fabric substrate. Then bake in a toaster at a baking temperature of 220°C for 7 minutes. After that, the fabric substrate is completely immersed in the ethyl acetate solution of 15% vinyl / amino co-modified silicone oil, and then padding for 3 times. The pressure of the rolling mill is also controlled at 0.3MPa, and the rolling margin is 70%. The waterproofing agent is coated on the fabric substrate. Finally, it was baked in a baking machine at a baking temperature of 170°C for 15 minutes and dried to obtain a waterproof membrane.

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Abstract

The invention relates to waterproof microphone comprises a housing, a waterproof membrane, a vibrating membrane, a gasket, and a polar ring. A through hole is formed in the center of the bottom of housing; and the waterproof membrane is contacted to the bottom of the housing. A first copper ring is arranged at the upper surface of the waterproof membrane; a second copper ring is contacted to the upper surface of the first copper ring; and the vibrating membrane is contacted to the upper surface of the second copper ring. The gasket is contacted to the upper surface of the vibrating membrane. A back electrode plate is arranged at the upper surface of the portion, approaching circular hole, of the gasket; and two through holes are formed in the back electrode plate. A plastic ring is arranged at the upper surface of the other portion of the gasket; the outer wall of the polar ring is contacted to the inner wall of the plastic ring; and the bottom of the polar ring is contacted with the back electrode plate. The waterproof membrane for the waterproof effect is arranged between the housing and the first copper ring, so that the microphone can be used normally even in environments with moisture and severe dust pollution and thus the application range is wide. Moreover, the waterproof membrane is made of the waterproof textile material; and a hydrophobicity membrane-forming agent and an environment-friendly waterproof agent are successively coated at the surface of the textile material, so that the liquid water can not penetrate the textile material and thus no acoustic attenuation is caused.

Description

Technical field [0001] The invention relates to a microphone, in particular to a waterproof microphone. Background technique [0002] Microphones, also called microphones, microphones, and microphones, are energy conversion devices that convert sound signals into electrical signals. Such as figure 1 As shown, the traditional microphone includes a housing 1, a copper ring 2-2, a diaphragm 2-1, a gasket 3, a back plate 4, a plastic ring 5, a pole ring 6, a dust-proof net 8 and a PCB assembly. The copper ring 2-2 is attached to the upper bottom surface of the housing 1, the diaphragm 2-1 is attached to the copper ring 2-2, the gasket 3 is attached to the diaphragm 2-1, and the gasket 3 is close to the housing A part of the upper surface of the circular hole is provided with a back plate 4, the back plate 4 is provided with two through holes, and the other part of the gasket 3 is provided with a plastic ring 5 on the upper surface, and the outer wall of the polar ring 6 is attached ...

Claims

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Application Information

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IPC IPC(8): H04R1/44
Inventor 施存炬张建国
Owner NINGBO SINGLONG ELECTRONICS
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