MICROPHONE

• Main Authors: WATANABE KAZUKI, NAKANISHI KENSUKE, AWAMURA RYUJI, ISHIHARA KENTARO
• Format: Patent
• Language: English; Japanese
• Published: 23.08.2022
• Subjects: DEAF-AID SETS; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS; PUBLIC ADDRESS SYSTEMS

To provide a small and highly sensitive microphone.SOLUTION: A microphone 1 includes a cylindrical case 10 having a bottom surface and side surfaces and a top surface that opens, a substrate 19 that is fixed so as to close the opening in the upper surface of the case and has an electrode portion 191 on its upper surface, and a side sound hole 101 formed on the side of the case. When a tone hole group (upper sound hole group 101A) encircling near the upper end of the side surface and a tone hole group (lower sound hole group 101B) encircling near the lower end of the side surface are formed, the upper sound hole group 101A and the lower sound hole group 101B can be used as front and rear sound holes, and therefore, there is no need to provide a space (internal space for forming acoustic characteristics), and the size can be reduced.SELECTED DRAWING: Figure 2 【課題】小型かつ高感度なマイクロホンを提供する。【解決手段】マイクロホン１は、底面および側面を有し、上面が開口された筒状のケース１０と、ケース上面の開口部を塞ぐように固定され、その上面に電極部１９１を有する基板１９と、ケースの側面に形成された側面音孔１０１を含む。側面の上端付近を一周する音孔群（上部音孔群１０１Ａ）と、側面の下端付近を一周する音孔群（下部音孔群１０１Ｂ）を形成すれば、上部音孔群１０１Ａ、下部音孔群１０１Ｂを前面、後面音孔として用いることができるため、空間（音響特性を形成するための内部空間）を設ける必要がなくなり、小型化することができる。【選択図】図２