Miniature microphone component with conductive rubber contacts
AssigneeFuji Polymer Industries Co., Ltd.
InventorsMitsuhiro Fujimoto, Hiroshi Nemoto
Life of this patent
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Abstract
A miniature microphone component comprises a miniature condenser microphone, conductive rubber contacts formed and fixed on a terminal area of the miniature microphone and a rubber casting (also called “bushing”) for protection against vibrations covering the circumference of the miniature microphone. To install the miniature microphone component, it is sufficient to insert the miniature microphone component into a small-size communication device so that the conductive rubber contacts formed and fixed on the terminal area of the miniature microphone are pressed against terminal portions on a circuit board. Thus, the working efficiency of the assembly can be considerably increased and the installation space can be minimized.
Claims19
A miniature microphone component comprising conductive rubber contacts and a cylindrical rubber casting for protection against vibrations surrounding the circumference of a miniature microphone having a terminal area and a sound-collecting portion, the rubber casting is shaped to hermetically cover to miniature microphone, except for the terminal area and the sound-collecting portion,
- wherein the conductive rubber contacts are self-adhesively formed and fixed by casting a not-yet-hardened conductive rubber compound into a predetermined form on the terminal area of the miniature microphone, and then hardening the compound on the terminal area of the miniature microphone, and the rubber contacts project beyond an outer surface of the rubber casting,
- the conductive rubber contacts are integrated into the terminal area of the miniature microphone, and
- the conductive rubber contacts are elastically compressible and configured so as to be area-contacted under pressure-induced elastic deformation with a terminal portion on a circuit board.
A miniature microphone component, comprising:
- a microphone having a first end surface, a second end surface, a perimeter surface extending between the first and second end surfaces, and a terminal area on one of the first and second end surfaces;
- conductive rubber contacts self-adhesively formed and fixed by casting a not-yet-hardened conductive rubber compound into a predetermined form on the terminal area of the miniature microphone, and then hardening the compound on the terminal area;
- a cylindrical rubber bashing surrounding the perimeter surface of the microphone, the rubber bushing including a first flange that is disposed over and at least partially covers the first end surface of the microphone, and a second flange that is disposed over and at least partially covers the second end surface of the microphone;
- wherein said contacts are integrated into the terminal area of the microphone and project beyond an outer surface of the rubber bushing;
- and
- the conductive rubber contacts are elastically compressible and configured so as to be area-contacted under pressure-induced elastic deformation with a terminal portion on a circuit board.
Dependencies are inferred from the claim text.