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Speaker box

A loudspeaker box and shell technology, applied in the field of acoustics and electricity, can solve problems such as inability to absorb energy, limited radiated energy, and small rigid wall damping, and achieve the effects of weakening resonance, improving acoustic performance, and improving sensitivity

Inactive Publication Date: 2017-11-21
AAC TECH PTE LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the speaker box of the related art, the shell walls of the rear cavity are all rigid walls formed of hard plastic or metal materials. The energy of the cavity is effectively transmitted, so it cannot absorb the energy of the specified frequency
Therefore, this structure easily causes the rear cavity to generate resonance in the rear cavity, which in turn leads to a decrease in the sensitivity of the speaker box and distortion of the sound, which affects the acoustic performance of the speaker box

Method used

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Embodiment Construction

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0024] Please also see Figure 1-5 , the present invention provides a speaker box 100, comprising a casing 10 having a receiving space 20 and a sounding unit 3 accommodated in the containing space 20, wherein the casing 10 includes a lower cover 1 and a cover arranged on The upper cover 2 of the lower cover 1 , the upper cover 2 and the lower cover 1 jointly enclose a receiving space 20 .

[0025] The sound emitting unit 3 divides the receiving space 20 into ...

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Abstract

The invention provides a speaker box, which comprises a housing with an accommodating space and a sound production unit accommodated in the accommodating space, wherein the sound production unit separates the accommodating space into a front cavity and a rear cavity opposite to the front cavity, the front cavity is communicated with the outside, and the housing is provided with a through hole portion penetrating the housing at the position corresponding to the rear cavity. The speaker box further comprises an elastic cover plate which is connected with the housing and completely covers the through hole portion, the elastic cover plate is used for absorbing energy of vibration at a specific resonance frequency, and the Young modulus or strength of the elastic cover plate is less than the Young modulus or strength of the housing. Compared with the related art, the speaker box provided by the invention is good in sensitivity, low in distortion and good in acoustic performance.

Description

【Technical field】 [0001] The invention relates to the field of sound and electricity, in particular to a speaker box applied to portable electronic products. 【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 in the related art includes a housing, a sounding unit housed in the housing, a leakage hole set through the housing, and a cover plate covering the leakage hole. The sounding unit includes a The diaphragm is used to vibrate and produce sound, the diaphragm is spaced apart from the casing to form a front acoustic cavity, the leakage hole is arran...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R9/06H04R9/02
CPCH04R9/06H04R9/02H04R2400/11
Inventor 秦鹏
Owner AAC TECH PTE LTD
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