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Loudspeaker box

A loudspeaker box and loudspeaker technology, which is applied in the direction of sensors, sensor components, single transducer combination, etc. It can solve the problems of affecting the sense of hearing, the rigid wall has small damping, and the energy of the cavity cannot be effectively transmitted, so as to improve the acoustic performance. Effect

Active Publication Date: 2018-02-13
AAC TECH PTE LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The damping of the rigid wall is small, and the vibration amplitude is small, the radiation energy is limited, and the energy of the cavity cannot be effectively transmitted, so the energy of certain specified frequencies cannot be absorbed
The front cavity resonance is generated when the speaker box emits sound. Due to the resonance effect, a resonance peak is formed in the middle and high frequencies, and at the same time, distortion peaks such as 2nd and 3rd times will be generated in the distortion, which will affect the sense of hearing.

Method used

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  • Loudspeaker box
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Embodiment Construction

[0019] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0020] Please refer to figure 1 , figure 2 and image 3 ,in figure 1 The perspective view of the loudspeaker box provided by the present invention; figure 2 for figure 1 An exploded view of the loudspeaker enclosure shown; image 3 for figure 1 A sectional view of the speaker cabinet shown along line A-A. The speaker box 100 includes a casing 11 and a speaker unit 12 accommodated in the casing 11 . The speaker unit 12 includes a diaphragm 121 for vibrating and sounding.

[0021] The casing 11 includes an upper cover 111 and a lower cover 112 , the upper cover 111 and the lower cover 112 enclose to form a receiving space, and the speaker unit 12 is received in the receiving space.

[0022] The diaphragm 121 is spaced apart from the inner wall of the upper cover 111 to form a front acoustic cavity 113, and the upper cover 111 also includes a so...

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Abstract

The invention discloses a loudspeaker box. The loudspeaker comprises a shell, a loudspeaker monomer, a sound conduction channel and an elastic cover plate, wherein the loudspeaker monomer is accommodated in the shell; the loudspeaker monomer comprises a vibrating diaphragm for sounding by vibrating; the vibrating diaphragm and the shell are arranged at an interval, thereby forming a front acousticcavity; the sound conduction channel is used for communicating the front acoustic cavity with the outside; a front cavity of the loudspeaker box is constructed by the front acoustic cavity and the sound conduction channel; a through hole passing through the shell is formed at a position corresponding to the front cavity on the shell; the elastic cover plate is connected with the shell, covers thethrough hole and is used for absorbing vibration energy at specific resonant frequency; and the elastic cover plate comprises sheet metal and an elastic material layer which is overlapped on the sheet metal. Through adoption of the loudspeaker box provided by the invention, resonance of the front cavity can be weakened; a resonant peak is lowered; and distortion is improved.

Description

【Technical field】 [0001] The invention relates to the technical field of electroacoustic conversion, in particular to a speaker box. 【Background technique】 [0002] With the advent of the mobile Internet era, the number of smart mobile devices continues to rise. Among the many mobile devices, the mobile phone is undoubtedly the most common and portable mobile terminal device. At present, the functions of mobile phones are extremely diverse, one of which is the function of high-quality music. Therefore, speaker boxes for playing sound are widely used in current smart mobile devices. [0003] The speaker box includes a housing, and a speaker unit housed in the housing. The speaker unit includes a diaphragm for vibrating and sounding. The diaphragm is spaced apart from the housing to form a front acoustic cavity. The front acoustic cavity It communicates with the sound guide channel to form the front cavity. In the related art, the shell is made of hard plastic material and ...

Claims

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Application Information

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IPC IPC(8): H04R1/28H04R1/02
CPCH04R1/021H04R1/2869H04R1/2888
Inventor 秦鹏施胜荣张哲
Owner AAC TECH PTE LTD