CN207968926U - Loudspeaker enclosure - Google Patents

Abstract

The utility model provides a kind of loudspeaker enclosure, the upper cover of receiving space is surrounded jointly including lower cover, with the lower cover, the sounding monomer that is contained in the receiving space and be formed in the receiving space lead sound channel, the sounding monomer and the upper cover surround the preceding operatic tunes jointly, the preceding operatic tunes is in communication with the outside by the sound channel of leading, and the preceding operatic tunes collectively forms ante-chamber with the sound channel of leading；The upper cover includes the inner surface and the outer surface that is oppositely arranged with the inner surface close to the lower cover, its inner surface of the part of ante-chamber setting described in the face of the upper cover is in coarse structure, the coarse structure includes the multiple lug bosses extended to form from the inner surface to the direction of the close lower cover, and the height of at least partly described lug boss is inconsistent.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 It is distorted bad when sound, influences the acoustical behavior of the loudspeaker enclosure.

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 Surround the upper cover of receiving space, the sounding monomer that is contained in the receiving space and be formed in the receiving space lead sound Channel, the sounding monomer and the upper cover surround the preceding operatic tunes jointly, and the preceding operatic tunes is in communication with the outside by the sound channel of leading, And the preceding operatic tunes collectively forms ante-chamber with the sound channel of leading；The upper cover include close to the lower cover inner surface and with institute The outer surface that inner surface is oppositely arranged is stated, its inner surface setting of the part of ante-chamber is in coarse structure described in the face of the upper cover, The coarse structure includes and at least portion from the inner surface to multiple lug bosses for extending to form of direction close to the lower cover Divide the height of the lug boss inconsistent.

Preferably, multiple spaced settings of the lug boss.

Preferably, multiple lug bosses are in array distribution.

Preferably, the surface of the lug boss is in convex structure.

Preferably, the lug boss is square column structure.

Compared with the relevant technologies, the loudspeaker enclosure of the utility model is by the part of the preceding operatic tunes described in the face of the upper cover Inner surface setting be in coarse structure, the coarse structure include be recessed from the inner surface to the outer surface direction formed it is more A lug boss and height is inconsistent, increases the damping of the ante-chamber by the design of the coarse structure, to raise one's voice described in reducing The distortion spike of the sounding of device case, avoids sounding higher hamonic wave from the problems such as spike occur, and then improves the loudspeaker enclosure Acoustical behavior.

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 decomposition diagram 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 utility model loudspeaker enclosure designs FR frequency responses with the relevant technologies loudspeaker enclosure after coarse structure by ante-chamber Curve graph；

Fig. 5 is that the utility model loudspeaker enclosure will be humorous with the THD of the relevant technologies loudspeaker enclosure after ante-chamber design coarse structure Wave distortion curve graph.

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, leads sound channel 4, coarse structure 5 at sounding monomer 3.

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.

The upper cover 2 includes the inner surface 21 and the outer surface that is oppositely arranged with the inner surface 21 close to the lower cover 1 22。

The fixation of sounding monomer 3 is contained in the receiving space 10.The sounding monomer 3 is spaced with the upper cover 2 It is arranged and encloses to form the preceding operatic tunes 6 jointly；The sounding monomer 3 surrounds back cavity 101 jointly with the upper cover 2 and the lower cover 1.

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 6 with it is outer Boundary is connected to, and is used to form side vocal structure.

That is, in present embodiment, the receiving space 10 is separated into ante-chamber 102 and institute by the sounding monomer 3 State back cavity 101.Wherein, the ante-chamber 102 includes that the preceding operatic tunes 6 leads sound channel 4 with described, for speaking；The back cavity 101 Frequency acoustic performance for improving the loudspeaker enclosure 100.

The part of ante-chamber 102 described in the face of the upper cover 2, the setting of inner surface 21 are in coarse structure 5.

The damping for increasing the ante-chamber 102 by the design of the coarse structure 5 is sent out to reduce the loudspeaker enclosure 100 The distortion spike of sound, avoids sounding higher hamonic wave from the problems such as spike occur.

Specifically, the coarse structure 5 includes from the inner surface 21 of the upper cover 2 to close to the side of the lower cover 1 To the multiple lug bosses 51 extended to form, and the height of at least partly lug boss 51 is inconsistent.That is the coarse structure 5 Multiple lug bosses 51 form broached-tooth design.

Certainly, the coarse structure 5 is not limited to be in lug boss 51, or groove structure etc., this is all feasible.

The 51 spaced setting of multiple lug bosses, more preferably, in present embodiment, multiple lug bosses 51 are in battle array Column distribution.Certainly, the distribution mode of the lug boss 51 is unlimited.

The shape of the lug boss 51 is unlimited, can be rectangle, circle or other shapes structure.

In present embodiment, the lug boss 51 can be flat column；

Or by the setting of the lug boss 51 be in arc structure, i.e., the surface of the lug boss 51 is in convex structure.It is more The coarse structure 5 that a convex structure is formed is excessively smoother, can be with while increasing the damping of the ante-chamber 102 Avoid occurring the problems such as higher hamonic wave spike when sounding.Be conducive to improve the acoustical behavior of the loudspeaker enclosure 100.

Fig. 4-5 is please referred to, Fig. 4, which is the utility model loudspeaker enclosure, to raise one's voice with the relevant technologies after ante-chamber design coarse structure The FR frequency response curve figures of device case；Fig. 5, which is the utility model loudspeaker enclosure, to raise one's voice with the relevant technologies after ante-chamber design coarse structure The THD harmonic distortion curve graphs of device case.

As seen from Figure 4, in the frequency response curve of the utility model loudspeaker enclosure 100, the harmonic distortion point of the ante-chamber 102 Peak obviously weakens, and tool improves significantly.

As seen from Figure 5, in the THD harmonic distortion curves of the loudspeaker enclosure 100, the ante-chamber 102, which is distorted spike, to be had Effect reduces, and tool improves significantly.

Compared with the relevant technologies, the loudspeaker enclosure of the utility model is by the part of the preceding operatic tunes described in the face of the upper cover Inner surface setting be in coarse structure, the coarse structure include be recessed from the inner surface to the outer surface direction formed it is more A lug boss increases the damping of the ante-chamber by the design of the coarse structure, to reduce the sounding of the loudspeaker enclosure It is distorted spike, avoids sounding higher hamonic wave from the problems such as spike occur, and then improve the acoustical behavior of the loudspeaker enclosure.

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 (5)

1. a kind of loudspeaker enclosure, including lower cover and the lower cover surround the upper cover of receiving space, are contained in the receiving sky jointly In sounding monomer and be formed in the receiving space lead sound channel, the sounding monomer and the upper cover surround jointly The preceding operatic tunes is in communication with the outside by the preceding operatic tunes, the sound channel of leading, and the preceding operatic tunes is collectively formed with the sound channel of leading Ante-chamber, which is characterized in that the upper cover includes the inner surface and the appearance that is oppositely arranged with the inner surface close to the lower cover Face, the setting of its inner surface of the part of ante-chamber is in coarse structure described in the face of the upper cover, and the coarse structure includes by described Inner surface is to the multiple lug bosses extended to form close to the direction of the lower cover, and the height of at least partly described lug boss differs It causes.

2. loudspeaker enclosure according to claim 1, which is characterized in that multiple spaced settings of lug boss.

3. loudspeaker enclosure according to claim 2, which is characterized in that multiple lug bosses are in array distribution.

4. loudspeaker enclosure according to claim 1, which is characterized in that the surface of the lug boss is in convex structure.

5. loudspeaker enclosure according to claim 1, which is characterized in that the lug boss is square column structure.