Microphone assembly
First Claim
Patent Images
1. A microphone assembly comprising:
- a microphone casing comprising a sound inlet, an internal surface, and a miniature transducer element disposed in the microphone casing, the miniature transducer element being bounded by first and second oppositely arranged outer surfaces and by a peripheral edge surface, the miniature transducer element comprising a diaphragm acoustically connected to the sound inlet at the first outer surface of the transducer element; and
a first internal chamber at least delimited by the second outer surface of the miniature transducer element, a portion of the first outer surface, a portion of the peripheral edge surface, and a portion of the internal surface of the microphone casing that opposes the second outer surface,wherein the first internal chamber extends around the portion of the peripheral edge surface and above a portion of the first outer surface of the miniature transducer element.
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Abstract
A microphone assembly comprising a housing in which a transducer element is positioned. In the housing, an upper and a lower chamber are defined, the lower chamber extending at least at one edge of the transducer element and potentially to an upper side thereof. An element, such as a horse-shoe shaped element or a circular element, is provided for separating the upper side of the transducer element into the upper and lower chambers. The transducer element is fixed using flexible fixing means, and space is provided at one or more sides of the transducer element to take up thermal expansion and retraction of the housing and the transducer element.
96 Citations
10 Claims
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1. A microphone assembly comprising:
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a microphone casing comprising a sound inlet, an internal surface, and a miniature transducer element disposed in the microphone casing, the miniature transducer element being bounded by first and second oppositely arranged outer surfaces and by a peripheral edge surface, the miniature transducer element comprising a diaphragm acoustically connected to the sound inlet at the first outer surface of the transducer element; and a first internal chamber at least delimited by the second outer surface of the miniature transducer element, a portion of the first outer surface, a portion of the peripheral edge surface, and a portion of the internal surface of the microphone casing that opposes the second outer surface, wherein the first internal chamber extends around the portion of the peripheral edge surface and above a portion of the first outer surface of the miniature transducer element. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification