Acoustic device
地域：
Changzhou
摘要
Provided is an acoustic device, having front and rear surfaces. The acoustic device includes: an enclosure housing being a metal housing; an acoustic component mounted in the enclosure housing, the acoustic component and the enclosure housing cooperate to form front and rear sound cavities, and the front sound cavity is communicated with the sound outlet; an isolation component mounted in the rear sound cavity, the isolation component and the enclosure housing enclose to form a filling cavity configured to be filled with a sound-absorbing material; and at least one buffer attached to an inner surface of the enclosure housing defining the filling cavity, the buffer is configured to reduce noise generated from collision of the sound-absorbing material with the enclosure housing. The acoustic device can reduce collision of the sound-absorbing material with the metallic enclosure housing, thereby reducing noise generated, so as to improve acoustic performance.
說明書
The present disclosure relates to the field of acoustoelectric conversion technologies and, in particular, to an acoustic device.
An acoustic device is widely used in a variety of electronic devices and generally includes an acoustic component for producing sound and an enclosure housing covering the acoustic component. The acoustic component and the enclosure housing are matched to form a front sound cavity and a rear sound cavity. The rear sound cavity is provided with a filling cavity configured to be filled with a sound-absorbing material, so as to increase an effective volume of the rear sound cavity of the acoustic device, which is an effective way to improve acoustic performance.
At present, a metallic enclosure housing is becoming a trend, but collision of the sound-absorbing material with the metallic enclosure housing easily produces noise that cannot be ignored, which adversely affects the acoustic performance of the acoustic device.
The present disclosure provides an acoustic device, so as to solve the problem of noise generated from collision of the sound-absorbing material with the metallic housing in the existing acoustic device.
權(quán)利要求
What is claimed is:1. An acoustic device, wherein the acoustic device has a front surface and a rear surface, the front surface is provided with a sound outlet, and the acoustic device comprises:an enclosure housing that is a metal housing; an acoustic component mounted in the enclosure housing, wherein the acoustic component and the enclosure housing cooperate to form a front sound cavity and a rear sound cavity, and the front sound cavity is communicated with the sound outlet; an isolation component mounted in the rear sound cavity, wherein the isolation component and the enclosure housing enclose to form a filling cavity configured to be filled with a sound-absorbing material; and at least one buffer attached to an inner surface of the enclosure housing defining the filling cavity, wherein the buffer is configured to reduce noise generated from collision of the sound-absorbing material with the enclosure housing. 2. The acoustic device as described in claim 1 , wherein the buffer has a mesh structure. 3. The acoustic device as described in claim 1 , wherein the buffer is glued to the inner surface of the enclosure housing. 4. The acoustic device as described in claim 1 , wherein the enclosure housing comprises a front wall located on the front surface, a bottom wall located on the rear surface, and a side wall connecting the front wall to the bottom wall, a side surface of the acoustic component is spaced from the side wall of the enclosure housing, the isolation component closely fits the side surface, and the isolation component and the front wall, the side wall and the bottom wall of the enclosure housing together enclose to form the filling cavity. 5. The acoustic device as described in claim 4 , wherein the isolation component is provided with at least one hollow portion to enable the side surface of the acoustic component to be exposed to the filling cavity. 6. The acoustic device as described in claim 1 , wherein the isolation component comprises a support member, the support member is provided with at least one opening, the isolation component further comprises an isolation member attached to the support member, the isolation member covers the opening, and the isolation member has a mesh structure. 7. The acoustic device as described in claim 4 , further comprising a cushion edge arranged in the enclosure housing and fixed to the enclosure housing, wherein the cushion edge is made of a nonmetallic material, and the isolation component is fixed to the cushion edge. 8. The acoustic device as described in claim 7 , wherein the cushion edge is arranged on an inner surface of the front wall of the enclosure housing, and the acoustic component abuts against and is fixed to the cushion edge. 9. The acoustic device as described in claim 4 , wherein the acoustic component comprises an acoustic unit and a front cover covering one side of the acoustic unit close to the front surface, and the front cover is provided with the sound outlet; and the front wall of the enclosure housing is provided with an avoiding opening to receive the front cover. 10. The acoustic device as described in claim 9 , wherein the acoustic unit comprises a diaphragm, the diaphragm is opposite to the front cover and defines the front sound cavity together with the front cover, one side of the diaphragm close to the rear surface defines the rear sound cavity together with the enclosure housing, the isolation component divides the rear sound cavity into a first rear sound cavity and a second rear sound cavity, and the second rear sound cavity is the filling cavity.
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