| 摘要 |
An apparatus for preventing a microphone from howling according to the present invention includes a rubber holder including a first space formed in one side surface, a second space formed in an opposite side surface, and an acoustic tube formed therein to allow the first and second spaces to communicate with each other; and a metal terminal which is coupled to an external electronic circuit board through a soldering scheme, the metal terminal being coupled to the opposite side surface of the rubber holder and having a through-hole communicating with the second space. According to the present invention, when the metal terminal is coupled to the external electronic circuit board, the sealing between the metal terminal and the external electronic circuit board can be secured and the external electronic circuit board can be solidly coupled to each other through the melting and solidification of solder and the metal terminal as compared with a scheme using an adhesive tape. In addition, as compared with a scheme of compressively coupling an apparatus for preventing a microphone from howling to the external electronic circuit board by inserting the apparatus into an interior of an outer case of a portable phone, even though the outer appearance of a portable phone is changed, there is little need to modify a size or shape of the apparatus for preventing a microphone from howling according to the present invention, so that the product can be standardized. |
