Aac Microtech (changzhou) Co, , Ltd.

Aac Technologies Pte. Ltd.

Shasha Liu

Xiaodong Liu

Zhiqiang Qiu

The present disclosure provides a speaker box, including a rear housing with a cavity, an elastic fixing member fixed to the rear housing, and a sound-producing unit supported on the elastic fixing member, an orthographic projection of the sound-producing unit being located in the cavity. The sound-producing unit includes a frame, a vibration system, a magnetic circuit unit, and a front cover defining a front cavity with the vibration system. The magnetic circuit unit includes a yoke, a main magnet, and an auxiliary magnet. The front cover includes a support portion, a cover plate, and a coating portion. The coating portion extends to a periphery of the yoke and completely wraps the auxiliary magnet jointly with the yoke. The elastic fixing member, the yoke, and the coating portion jointly seal the cavity to form a rear cavity.

Speaker box

A sound device includes a sound production unit, a support assembly, a sound absorption material, and a cover plate. The sound production unit includes a vibrating diaphragm, and the vibrating diaphragm is configured to vibrate and sound. The support assembly is fixed to one side, distal from the vibration diaphragm, of the sound production unit. The support assembly and the sound production unit jointly define a sound production rear cavity. The support assembly includes a ventilation structure and a powder filling hole. The ventilation structure is configured to release pressure. The powder filling hole penetrates through the ventilation structure. The sound absorption material is filled into the sound production rear cavity through the powder filling hole. The cover plate covers and is fixed to the powder filling hole. Acoustic performance of the sound device is improved through the sound absorption material.

Sound device

Provided is an acoustic device having front and rear surfaces, and the front surface has sound outlet. The acoustic device includes: a metal enclosure housing; an acoustic component mounted in the 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; and an isolation component mounted in the rear sound cavity, and the isolation component and the enclosure housing enclose to define a filling cavity filled with sound-absorbing material. The isolation component closely fits outer surface of the acoustic component, the isolation component is provided with hollow portion to enable the outer surface of the acoustic component to be exposed to the filling cavity, and the hollow portion is filled with the sound-absorbing material. With the arrangement of the hollow portion, the acoustic device is filled with more sound-absorbing material, improving acoustic performance.

Acoustic device

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.

A speaker box includes a housing and a speaker unit accommodated in the housing. The speaker unit includes a diaphragm configured to vibrate and sound. The diaphragm is spaced from the housing to form a front sound cavity therebetween. The speaker box further includes a sound transmitting channel communicating the front sound cavity with outside. The front sound cavity and the sound transmitting channel cooperatively form a front cavity of the speaker box. A sound absorption layer is disposed at a portion of the housing facing the front cavity. The sound absorption layer includes a micro-porous structure. When the sound wave passes through the front cavity, the sound absorption layer is capable of absorbing the resonance vibration of the front cavity in high frequency, thus suppressing the amplification of the sound distortion due to the resonance vibration of the front cavity and improving the acoustic performance of the speaker box.

A speaker includes a frame, a vibration unit fixed to the frame, and a magnetic circuit unit fixed to the frame. The vibration unit includes a diaphragm fixed to the frame, and a coil configured to drive the diaphragm to vibrate and sound. The diaphragm includes a dome. The dome includes a first layer, a second layer and a third layer which are stacked sequentially in a direction from the coil to the diaphragm. The second layer includes a honeycomb structure. The third layer includes a body and a plurality of through holes extending through the body in a vibration direction of the diaphragm. The through holes communicate with the honey structure of the second layer form a resonance cavity.

Growing community of inventors

Shenzhen, China

Shasha Liu