CN207625786U

CN207625786U - Loudspeaker enclosure

Info

Publication number: CN207625786U
Application number: CN201721457652.3U
Authority: CN
Inventors: 秦鹏; 魏威
Original assignee: AAC Technologies Pte Ltd
Current assignee: AAC Technologies Pte Ltd
Priority date: 2017-11-02
Filing date: 2017-11-02
Publication date: 2018-07-17
Anticipated expiration: 2027-11-02

Abstract

The utility model provides a kind of loudspeaker enclosure, the sounding monomer for surrounding the upper cover of receiving space jointly including lower cover, with the lower cover and being contained in the receiving space, the sounding monomer includes vibrating diaphragm and is sticked and is fixed on the top dome of the vibrating diaphragm, the vibrating diaphragm surrounds the preceding operatic tunes jointly with the upper cover, the top dome is correspondingly arranged with the preceding operatic tunes, and the top dome is the porous structure that multiple nano-scale particles are polymerized.Compared with the relevant technologies, the small and acoustical behavior of loudspeaker enclosure distortion of the utility model is good.

Description

Loudspeaker enclosure

Technical field

The utility model is related to acoustic-electric field more particularly to a kind of loudspeaker enclosures applying to portable electronic product.

Background technology

With the arrival of mobile internet era, the quantity of Intelligent mobile equipment constantly rises.And in numerous mobile devices Among, mobile phone is undoubtedly most common, most portable mobile terminal device.Currently, the function of mobile phone is extremely various, one of them is just It is the music function of high-quality, therefore, the loudspeaker enclosure for playing sound is widely applied Intelligent mobile equipment till now Among.

The loudspeaker enclosure of the side sounding of the relevant technologies includes the sounding monomer that shell is contained in the shell, described Sounding monomer includes the vibrating diaphragm for vibration sounding, and the vibrating diaphragm is arranged to form the preceding operatic tunes with the shell interval, described to raise one's voice Device case further includes leading sound channel by what the preceding operatic tunes was in communication with the outside, and the preceding operatic tunes collectively forms institute with the sound channel of leading State the ante-chamber of loudspeaker enclosure.

However, in the loudspeaker enclosure of the relevant technologies, the inner wall of the ante-chamber of the shell is smooth planar structure, resistance Buddhist nun is smaller, and the loudspeaker enclosure will produce 2 times, 3 inferior distortion spikes due to ante-chamber resonance effect, to cause ante-chamber to go out Distortion and larger high-frequency noise, influence the acoustical behavior and sense of hearing of the loudspeaker enclosure when sound.

Therefore, a kind of new loudspeaker enclosure solution above-mentioned technical problem must be provided by having in fact.

Utility model content

The purpose of this utility model is to provide a kind of good loudspeaker enclosures of the small and acoustical behavior of distortion.

In order to achieve the above object, the utility model provides a kind of loudspeaker enclosure, including lower cover, common with the lower cover The sounding monomer for surrounding the upper cover of receiving space and being contained in the receiving space, the sounding monomer includes vibrating diaphragm and patch If being fixed on the top dome of the vibrating diaphragm, the vibrating diaphragm surrounds the preceding operatic tunes, the top dome and the preceding operatic tunes jointly with the upper cover It is correspondingly arranged, the top dome is the porous structure that multiple nano-scale particles are polymerized.

Preferably, the diameter of the nano-scale particle is less than 100 μm.

Preferably, the vibrating diaphragm includes the ring portion in top dome portion and the periphery extension by the top dome portion, the top dome portion Equipped with through through-hole thereon, the top dome is covered on the through-hole and is fixed on the top dome portion completely.

Preferably, the top dome is fixed on the side of the close upper cover in the top dome portion.

Preferably, the loudspeaker enclosure further include be formed in the receiving space lead sound channel, the sound channel of leading will The preceding operatic tunes is in communication with the outside, and ante-chamber is collectively formed with the preceding operatic tunes in the sound channel of leading.

Compared with the relevant technologies, the top dome and the preceding operatic tunes are correspondingly arranged and institute by the loudspeaker enclosure of the utility model It is the porous structure being polymerized by nano-scale particle to state top dome.The roof structure aggregated by the nano-scale particle realizes Increase the damping of the preceding operatic tunes and adjust its venting capability, the sound wave of specific frequency is played and is raised described in filter action and reduction The distortion spike of sound device case sounding effectively inhibits harmonic distortion and high-frequency noise caused by sounding higher order resonances, and then improves The acoustical behavior and sense of hearing of the loudspeaker enclosure.

Description of the drawings

It is required in being described below to embodiment in order to illustrate more clearly of the technical scheme in the embodiment of the utility model Attached drawing to be used is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the utility model Example is applied, it for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings Other attached drawings are obtained, wherein：

Fig. 1 is the dimensional structure diagram of the utility model loudspeaker enclosure；

Fig. 2 is the part isometric structural exploded view of the utility model loudspeaker enclosure；

Fig. 3 is the cut-away view of the line A-A along Fig. 1；

Fig. 4 is the frequency response curve of the utility model loudspeaker enclosure and the relevant technologies loudspeaker enclosure；

Fig. 5 is the total harmonic distortion curve graph of the utility model loudspeaker enclosure and the relevant technologies loudspeaker enclosure.

Specific implementation mode

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describing, it is clear that described embodiment is only a part of the embodiment of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work The all other embodiment obtained, shall fall within the protection scope of the present invention.

Please refer to Fig. 1-3, the utility model provides a kind of loudspeaker enclosure 100, including lower cover 1, be covered on it is described The upper cover 2 of lower cover 1, sounding monomer 3 and lead sound channel 4.

The upper cover 2 surrounds receiving space 10 jointly with the lower cover 1.The upper cover 2 and the lower cover 1 can be integrated knot Structure or separate structure.

The fixation of sounding monomer 3 is contained in the receiving space 10.The sounding monomer 3 includes being used for vibration sounding Vibrating diaphragm 31 and be sticked and be fixed on the top dome 32 of the vibrating diaphragm 31.

The vibrating diaphragm 31 is arranged with the interval of the upper cover 2 and encloses to form the preceding operatic tunes 5 jointly；The vibrating diaphragm 31 and the upper cover 2 and the lower cover 1 surround back cavity 101 jointly.

The vibrating diaphragm 31 is used for vibration sounding；The top dome 32 is correspondingly arranged with the preceding operatic tunes 5, for improving high frequency sound Performance is learned, i.e., the described 32 at least part of top dome is directly contacted with the preceding operatic tunes 5.

The sound channel 4 of leading is formed in the receiving space 10, specifically, the sound channel 4 of leading is formed on described Lid 2.The sound channel 4 of leading can be also an integral molding structure with the upper cover 2.It is described lead sound channel 4 by the preceding operatic tunes 5 with it is outer Boundary is connected to, and is used to form side vocal structure.

That is, in present embodiment, the vibrating diaphragm 31 by the receiving space 10 be separated into ante-chamber 102 and it is described after Chamber 101, wherein the ante-chamber 102 includes that the preceding operatic tunes 5 leads sound channel 4 with described, for speaking；The back cavity 101 is used for Improve the frequency acoustic performance of the loudspeaker enclosure 100.

In present embodiment, the vibrating diaphragm 31 includes the ring in top dome portion 311 and the periphery extension by the top dome portion 311 Portion 312.

The top dome portion 311 is equipped with the through-hole 3111 through thereon, and the top dome 32 is covered on the through-hole 3111 completely And it is fixed on the top dome portion 311.

More preferably, the top dome 32 is fixed on the side of the close upper cover 2 in the top dome portion 311.What the structure made Top dome 32 is stated utmostly to be in direct contact with the preceding operatic tunes 5.

Specifically, the top dome 32 is the porous structure that multiple nano-scale particles are polymerized.The top dome 32 is in high frequency When vibration, since the instantaneous velocity of air-flow is larger and 32 diaphagras etc. of itself of top dome, high-frequency harmonic and bottom are generated It makes an uproar, these clutters can be resonated by the ante-chamber 102 to be amplified.Pass through the height that can will be generated outside the top dome 32 in the top dome 32 Frequency harmonic wave and bottom are made an uproar direct absorption, and the sound quality of the loudspeaker enclosure 100 can be effectively improved.

In addition, the porous structure that the nano-scale particle of the top dome 32 is polymerized, while being also air-permeable structure.It can be with By adjusting the pore size of nano-scale particle polymerization, (for example to pass through the modes such as nano-scale particle size and binder dosage real It is existing), increase 102 venting capability of ante-chamber and acoustic resistance to adjust, filter action is played to the sound wave of specific frequency, you can with most The acoustic output needed for modulation effectively inhibits sounding high order to reduce the distortion spike of 100 sounding of the loudspeaker enclosure eventually Harmonic distortion caused by resonance and high-frequency noise, and then improve the acoustical behavior of the loudspeaker enclosure 100.

The arrangement mode for aggregating into the nano-scale particle of the top dome 32 is unlimited, can be random distribution, also interchangeable Certain regular distribution setting, for example the nano-scale particle is in array distribution.

It should be noted that the polymeric shape of described nano-scale particle itself is unlimited, size is effective.

In present embodiment, the diameter for aggregating into the nano-scale particle of the top dome 32 is less than 100 μm.

The top dome 32 can be pasted on the top dome portion 311 by glue etc..For example pass through glue spraying mode or dispensing mode Setting.

The top dome 32 is directly disposed as to eliminate supernumerary structure setting by the structure that nano-scale particle is polymerized, and The pore volume and area that can make the structure of nanoparticle polymerization maximize, and the effect for improving acoustical behavior is more excellent.

Fig. 4-5 is please referred to, Fig. 4 is the frequency response curve of the utility model loudspeaker enclosure and the relevant technologies loudspeaker enclosure Figure.As seen from Figure 4, in the frequency response curve of the utility model loudspeaker enclosure 100, the resonance peak of the ante-chamber 102 is substantially reduced, Tool improves significantly.

Fig. 5 is the total harmonic distortion curve graph of the utility model loudspeaker enclosure and the relevant technologies loudspeaker enclosure, by can in Fig. 5 See, in the total harmonic distortion curve of the loudspeaker enclosure 100, the ante-chamber 102 is distorted spike and effectively reduces, and has and significantly changes Kind effect.

Above-described is only the embodiment of the utility model, it should be noted here that for the ordinary skill of this field For personnel, without departing from the concept of the present invention, improvement can also be made, but these belong to this practicality Novel protection domain.

Claims

1. a kind of loudspeaker enclosure, including lower cover and the lower cover surround the upper cover of receiving space and are contained in the receipts jointly Hold the sounding monomer in space, the sounding monomer includes vibrating diaphragm and is sticked and is fixed on the top dome of the vibrating diaphragm, the vibrating diaphragm with The upper cover surrounds the preceding operatic tunes jointly, and the top dome is correspondingly arranged with the preceding operatic tunes, which is characterized in that the top dome is multiple The porous structure that nano-scale particle is polymerized.

2. loudspeaker enclosure according to claim 1, which is characterized in that the diameter of the nano-scale particle is less than 100 μm.

3. loudspeaker enclosure according to claim 1, which is characterized in that the vibrating diaphragm includes top dome portion and by the top dome portion The ring portion that extends of periphery, the top dome portion is equipped with through through-hole thereon, the top dome be covered on completely the through-hole and It is fixed on the top dome portion.

4. loudspeaker enclosure according to claim 3, which is characterized in that the top dome is fixed on the close institute in the top dome portion State the side of upper cover.

5. loudspeaker enclosure according to claim 1, which is characterized in that the loudspeaker enclosure further includes being formed in the receiving Sound channel is led in space, and the preceding operatic tunes is in communication with the outside by the sound channel of leading, and described leads sound channel and the preceding operatic tunes Ante-chamber is collectively formed.