between the terminal connecters and the board terminals and between the terminal connecters and the condenser microphone when the terminal connecters terminal connecters are assembled with theinsulator and the condenser microphone.
It is, therefore, an object of the present invention to provide a condenser microphone structure which can reduce high frequency noises to as a small level as possible.
It is another object of the present invention to provide a condenser microphone structure which can be produced at a relatively lower production price and at a considerably shorter production period without any metal mold needed to be used forproducing terminal connecters forming part of the condenser microphone structure.
It is a further object of the present invention to provide a condenser microphone structure which can realize a stable electrical connection between the elements or parts forming part of the condenser microphone structure.
According to a first aspect of the present invention, there is provided a condenser microphone structure, comprising: a microphone housing formed with an opening; a condenser microphone accommodated in the microphone housing and partly exposed tothe exterior through the opening to produce a sound signal indicative of a voice sound after receiving the voice sound through the opening; a pair of terminal connecters consisting of first and second terminal connecters provided on the microphonehousing in the neighborhood of each other under an insulated state from each other, each of the first and second terminal connecters including a helical spring portion, and an end portion integrally formed with the helical spring portion, the helicalspring portion and the end portion being made of an electrically conductive material, the end portions being electrically connected with the condenser microphone to discharge the sound signal from the condenser microphone through the first and secondterminal connecters; and an insulating member accommodated in the microphone housing to retain the condenser microphone and the first and second terminal connecters with the microphone housing and to insulate the first terminal connecter from the secondterminal connecter.
According to a second aspect of the present invention, A cellular phone, comprising: a cellular phone housing; a printed circuit board unit including a printed circuit board accommodated in the cellular phone, and first and second board terminalsmounted on the printed circuit board in spaced and insulated relationship with each other; a microphone housing formed with an opening; a condenser microphone accommodated in the microphone housing and partly exposed to the exterior through the openingto produce a sound signal indicative of a voice sound after receiving the voice sound through the opening;
As will be understood from the foregoing description, the condenser microphone structure according to the present invention can reduce
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