CN205847531U - Loudspeaker enclosure and there is the electronic equipment of this loudspeaker enclosure - Google Patents

Abstract

This utility model provides a kind of loudspeaker enclosure.Described loudspeaker enclosure includes the upper cover having roof, assemble with described upper cover and form the lower cover of receiving space and be contained in the loudspeaker monomer in described receiving space, described roof includes near the lower surface of described loudspeaker monomer and the upper surface that is oppositely arranged with described lower surface, described loudspeaker monomer includes vibrating diaphragm, described upper cover and described vibrating diaphragm surround the front operatic tunes, described loudspeaker enclosure is additionally provided with the sound channel of one and the conducting of the described front operatic tunes, the described front operatic tunes and described sound channel collectively form ante-chamber, described loudspeaker box also includes that at least one runs through the upper and lower surface of described roof and arranges and connect described ante-chamber and extraneous leak, described leak is the leak of cone-shaped.Compared with prior art, the loudspeaker enclosure intermediate frequency distortion that this utility model provides is relatively low, and high-frequency resonant weakens, and resonance peak reduces, and radio-frequency component reduces, and sense of hearing improves and processing and fabricating cost is low.

Description

Loudspeaker enclosure and there is the electronic equipment of this loudspeaker enclosure

[technical field]

This utility model relates to electroacoustic conversion art, particularly relates to a kind of loudspeaker enclosure and has the electronics of this loudspeaker enclosure Equipment.

[background technology]

Along with the arrival in mobile Internet epoch, the popularity rate of audio frequency apparatus is more and more higher, and audio frequency apparatus is wanted by people Ask the broadcasting being not limited only to video/audio, more the reliability of audio frequency apparatus is proposed more requirements.Arriving of especially 4G epoch Come, Technology of Mobile Multimedia develops the most therewith, and a lot of audio frequency apparatuses have multiple amusement function, as video playback, digital vedio recording, Game, GPS navigation etc..

And in audio frequency apparatus, loudspeaker enclosure is a kind of conventional electronic devices and components, it is mainly used in the broadcasting of audio signal. The loudspeaker enclosure of prior art includes that the upper cover having roof assembles with described upper cover and forms the lower cover of receiving space and be contained in The loudspeaker monomer of described receiving space, described loudspeaker monomer includes the front sound that vibrating diaphragm, described vibrating diaphragm and described upper cover surround Chamber, described loudspeaker enclosure is additionally provided with one and derives extremely with the conducting of the described front operatic tunes the sound for being produced by described loudspeaker monomer Sound channel outside described loudspeaker enclosure, described sound channel includes the sender being located at described upper cover and goes out sound described in passing through Hole connects with external environment, and the described front operatic tunes and described sound channel collectively form ante-chamber.Sender when described loudspeaker enclosure Have in being communicated with bigger resistance or described sound channel with external environment bigger damping time, such as complete machine environment, described in raise one's voice The intermediate frequency distortion of device case can raise, and has a strong impact on the listening quality of described loudspeaker enclosure, simultaneously because before described loudspeaker enclosure Chamber resonance, can amplify radio-frequency component and high-frequency noise.

In correlation technique by described roof arrange leak weaken ante-chamber resonate, the hole wall of this leak is designed as During straight tube shape, process described leak by syringe needle and easily snap off syringe needle, cause cost up.

Therefore, it is necessary to provide a kind of new loudspeaker enclosure to solve the problems referred to above in fact.

[utility model content]

The purpose of this utility model is to provide a kind of loudspeaker enclosure, and it is used for solving existing loudspeaker enclosure intermediate frequency distortion relatively The technical problem that high and ante-chamber resonance amplifies high-frequency components and high-frequency noise causes sense of hearing to reduce, and correlation technique leak adds The technical problem that work cost is high.

In order to solve above-mentioned technical problem, devising a kind of loudspeaker enclosure, it includes having the upper cover of roof and described upper cover Assembling and form the lower cover of receiving space and be contained in the loudspeaker monomer in described receiving space, described roof includes near institute The lower surface stating loudspeaker monomer and the upper surface being oppositely arranged with described lower surface, described loudspeaker monomer includes vibrating diaphragm, institute Stating upper cover and described vibrating diaphragm surrounds the front operatic tunes, described loudspeaker enclosure is additionally provided with one and turns on and for raising described with the described front operatic tunes The sound that sound device monomer produces derives the sound channel outside described loudspeaker enclosure, and the described front operatic tunes and described sound channel are common Constituting ante-chamber, described loudspeaker box also includes that at least one runs through the upper and lower surface of described roof and arranges and connection institute Stating ante-chamber and extraneous leak, described leak includes being positioned at the first opening of described upper surface, being positioned at described lower surface Second opening and connect described first opening and described second opening and the hole wall of inclined shape.

Preferably, described first opening and the aperture that described second opening is circular open and described first opening are less than institute Stating the aperture of the second opening, described hole wall extends to the central axial direction away from described leak from described first opening.

Preferably, described first opening is fully located in described second opening to the orthographic projection of described lower surface.

Preferably, described first opening and the aperture that described second opening is circular open and described first opening are more than institute Stating the aperture of the second opening, described hole wall extends to the central axial direction near described leak from described first opening.

Preferably, described second opening is fully located in described first opening to the orthographic projection of described upper surface.

Preferably, the central axis of described leak is parallel with the direction of vibration of described vibrating diaphragm.

Preferably, the quantity of described leak is one and is located at the roof corresponding with the described front operatic tunes.

Preferably, described upper cover also includes being laterally away from, from described roof two, sidewall and the company that described roof direction extends Connecing the end wall of described sidewall, the one end open of described sound channel connects with the described front operatic tunes, and its other end opening is and the external world The sender of environmental communication, described sender is positioned at described sidewall.

This utility model provides a kind of electronic equipment including above-mentioned loudspeaker enclosure simultaneously.

Compared with correlation technique, loudspeaker enclosure that this utility model provides and there is the electronic equipment of this loudspeaker enclosure have Following beneficial effect: by offering the leak running through its upper and lower surface at described roof, described leak connects institute State ante-chamber and extraneous and for cone-shaped leak, on the one hand can weaken ante-chamber resonance, reduce higher hamonic wave composition, improve audition Quality, on the other hand uses the leak of cone-shaped can overcome the technical problem of processing straight tube shape leak frangibility syringe needle, Improve the repeatable number of times that utilizes of processing needle head, save cost of manufacture and preferably ensure that the concordance of converted products.

[accompanying drawing explanation]

The perspective exploded view of the loudspeaker box embodiment one that Fig. 1 provides for this utility model；

Fig. 2 is that the three-dimensional of loudspeaker enclosure shown in Fig. 1 assembles schematic diagram；

Fig. 3 is that loudspeaker enclosure shown in Fig. 2 is along the sectional view of line A-A；

The three-dimensional of the loudspeaker enclosure embodiment two that Fig. 4 provides for this utility model assembles schematic diagram；

Fig. 5 is that loudspeaker enclosure shown in Fig. 4 is along the sectional view of line A-A；

Fig. 6 is total harmonic distortion curve and the total harmonic distortion song of prior art loudspeaker enclosure of loudspeaker enclosure described in Fig. 1 Line comparison diagram；

Fig. 7 is frequency response curve and the frequency response curve pair of prior art loudspeaker enclosure of loudspeaker enclosure described in Fig. 1 Than figure.

[detailed description of the invention]

Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out Clearly and completely describe, it is clear that described embodiment is only this utility model some embodiments rather than whole Embodiment.Based on the embodiment in this utility model, those of ordinary skill in the art are not under making creative work premise The every other embodiment obtained, broadly falls into the scope of this utility model protection.

Embodiment one

Please refer to Fig. 1, Fig. 2 and Fig. 3, wherein, the loudspeaker box one that Fig. 1 provides for this utility model is preferably implemented The perspective exploded view of example；Fig. 2 is that the three-dimensional of loudspeaker enclosure shown in Fig. 1 assembles schematic diagram；Fig. 3 is loudspeaker enclosure shown in Fig. 2 Sectional view along line A-A.This utility model provides a kind of loudspeaker enclosure 100, and it includes that upper cover 1 and described upper cover 1 assemble shape The lower cover 3 becoming receiving space 2A, the loudspeaker monomer 4 being contained in described receiving space 2A electrically connect with described loudspeaker monomer 4 The ante-chamber 6 that connects with external environment of flexible PCB 5 and at least one run through described upper cover 1 arrange and connect described before Chamber 6 and extraneous leak 7.

Described upper cover 1 include roof 11, from described roof 11 to the sidewall 13 extended away from described roof 11 direction and Connect the end wall 15 of described sidewall 13.The quantity of described end wall 15 and described sidewall 13 is two and interleaved head and the tail phase Even.Described roof 11 include near described loudspeaker monomer lower surface 113 and upper with what described lower surface 113 was oppositely arranged Surface 111.

Described lower cover 3 includes that accepting groove 31, described loudspeaker monomer 4 are arranged in described accepting groove 31, described lower cover 3 Support the effect of described loudspeaker monomer 4.

Described loudspeaker monomer 4 includes magnetic circuit system 41 and is driven to produce the vibration of sound by described magnetic circuit system 41 System 43.Described vibrational system 43 includes vibrating diaphragm 431 and drives the voice coil loudspeaker voice coil 433 of described vibrating diaphragm 431 vibration.

Described ante-chamber 6 is by the front operatic tunes 61 and connects the sound channel 63 of the described front operatic tunes 61 and constitutes.The described front operatic tunes 61 Referring to the space surrounded by described vibrating diaphragm 431 and described upper cover 1, described sound channel 63 refers to described loudspeaker monomer 4 The sound gone out derives the passage outside described loudspeaker enclosure 100.Described sound channel 63 includes that connect with external environment goes out sound Hole 631, described sender 631 is located at one end of described sound channel 63, is specifically opened in described upper end sidewall 13, with described go out The other end that sound hole 631 is relative connects with the described front operatic tunes 61.Described sender 631 is to connect described ante-chamber 6 and external environment Opening, in the present embodiment, described sender 631 is located at the side of described upper cover 1, and the most described loudspeaker enclosure 100 side is sent out Sound.It is further preferable that be additionally provided with the Air Filter 9 covering described sender 631 outside described sender 631.

Described leak 7 is the leak of cone-shaped, and the upper surface 111 and the lower surface 113 that run through described roof 11 are arranged, And connect described ante-chamber 6 and the external world.Under preferable shape, the aperture of described leak 7 is sufficiently small, not sounding.Described leak 7 includes The first opening 71, the second opening 73 being positioned at described lower surface 113 that are positioned at described upper surface 111 and connect described first opening 71 and the hole wall 75 of described second opening 73.Described first opening 71 and described second opening 73 are circular open and described first The aperture of opening 71 less than the aperture of described second opening 73, described hole wall 75 from described first opening 71 to away from described leakage The central axial direction in hole 7 extends and inclined shape, and the area of described hole wall 75 is opened to described second from described first opening 71 The direction of mouth 73 becomes larger.Preferably, the central axis of described leak 7 is parallel with the direction of vibration of described vibrating diaphragm 431, institute State the first opening 71 to be fully located in described second opening 73 to the orthographic projection of described lower surface 113.By leak 7 is designed For the leak of cone-shaped, the defect of processing frangibility syringe needle when can to overcome hole wall be straight tube shape, improving processing needle head can weigh Utilize number of times again, save cost of manufacture and preferably ensure that the concordance of converted products.

The quantity of described leak 7 is at least one, and it can also be multiple for can being one, multiple described leaks 7 Arrangement mode can be its aesthetic feeling of evenly distributed increase, naturally it is also possible to arbitrary arrangement.Described leak 7 can be located at described front sound Chamber 61 and/or the roof 11 of described sound channel 63 correspondence, as long as it can make described ante-chamber 6 connect with external environment, then may be used To play the effect all pressed, especially when described sender 631 have bigger resistance or damping time, can part minimizing air non-thread The impact that property is brought, alleviates described vibrating diaphragm 431 simultaneously and waves.In the present embodiment, the quantity of described leak 7 is one and sets In the roof that the described and front operatic tunes 61 is corresponding.

Embodiment two

Show incorporated by reference to three-dimensional assembling theing join the loudspeaker box embodiment two that Fig. 4 and Fig. 5, Fig. 4 provide for this utility model Being intended to, Fig. 5 is that loudspeaker enclosure shown in Fig. 4 is along the sectional view of line A-A.

Embodiment two is essentially identical with the structure of embodiment one, described loudspeaker enclosure 200 and described its district of loudspeaker enclosure 100 Not being, leak 7 described in embodiment one is the leak of reverse tapered shape, and the described leak 7 of embodiment two is positive taper The leak of shape, concrete, described leak 7 structure in embodiment two is as follows: be positioned at described the first of described upper surface 111 The aperture of opening 71 is more than the aperture of described second opening 73 being positioned at described lower surface 113, and described hole wall 75 is from described first Opening 71 extends and inclined shape to the central axial direction near described leak 7, and the area of described hole wall 75 is from described the One opening 71 is gradually reduced to the direction of described second opening 73.Preferably, described second opening 73 is to described upper surface 111 Orthographic projection is fully located in described first opening 71.

Please refer to Fig. 6 and Fig. 7, wherein, Fig. 6 is the total harmonic distortion curve of loudspeaker enclosure described in Fig. 1 and existing skill The total harmonic distortion curve comparison figure of art loudspeaker enclosure, Fig. 7 is frequency response curve and the prior art of loudspeaker enclosure described in Fig. 1 Loudspeaker enclosure frequency response curve comparison diagram.

The result of Fig. 6 and Fig. 7 is the system test carried out when described sender 631 has bigger resistance, the curve in Fig. 6 The I total harmonic distortion curve representing this utility model loudspeaker enclosure 100, curve II represents total harmonic wave of prior art loudspeaker enclosure Distortion curve, from fig. 6, it can be seen that described loudspeaker enclosure 100 intermediate frequency distortion that this programme provides is relatively low；Curve I table in Fig. 7 Show that the frequency response curve of this utility model loudspeaker enclosure 100, curve II represent that the frequency response of prior art loudspeaker enclosure is bent Line, described loudspeaker enclosure 100 high-frequency resonant that this programme provides as can be seen from Figure 7 weakens, and resonance peak reduces, and radio-frequency component subtracts Few, sense of hearing improves.

The operation principle of described loudspeaker enclosure is: when described voice coil loudspeaker voice coil 433 receives external impressed current signal, described voice coil loudspeaker voice coil 433 In magnetic field, the effect by Lorentz force can produce displacement.The current signal constantly side of conversion received along with described voice coil loudspeaker voice coil 433 To so that the Lorentz force also correspondent transform direction that described voice coil loudspeaker voice coil 433 is subject to, so that described voice coil loudspeaker voice coil 433 moves back and forth, from And drive the vibration of described vibrating diaphragm 431 to send sound, spread out of by described sender 631.When in described sound channel 63 or described When sound mouth 631 has bigger resistance or damping, described loudspeaker enclosure intermediate frequency distortion can raise, and has a strong impact on described loudspeaker enclosure Listening quality, simultaneously because the ante-chamber resonance of described loudspeaker enclosure, can amplify radio-frequency component and high-frequency noise, affect sense of hearing.This Utility model offer can preferably overcome this defect by arranging leak 7.Principle is as follows:

$Fh=\frac{1}{2\mathrm{\π}}\sqrt{\frac{1}{Ca\×Mp}}$

$Ca=\frac{v}{{\mathrm{\ρ}}_0\×{C_0}^2}$

Wherein, Fh is high-frequency resonant frequency, and Ca is acoustic compliance, and Mp is equivalent sound quality, and V represents front cavity volume, ρ₀For air Density, C₀For THE VELOCITY OF SOUND IN AIR.

Owing to all-bottom sound wave length of sound is longer, and the aperture of described leak 7 is less, the aperture ratio of described sender 631 Relatively big, so low-frequency sound is easy to from described sender 631 around shooting out, so leak 7 is less to low-frequency effects.Described Leak 7 destroys the integrity of V, reduces the resonance of described ante-chamber 6, and described leak 7 connects with the external world, can play The effect all pressed, when described sender 631 has bigger resistance or damping, partly can reduce the shadow that air nonlinearity brings Ring, alleviate described vibrating diaphragm 431 simultaneously and wave.Knowable to above-mentioned formula, described leak 7 provides a Mp value and described sender The 631 Mp values provided are in parallel, and total Mp value reduces, and high-frequency resonant summit slightly moves to right.

It addition, this utility model additionally provides a kind of electronic equipment, described electronic equipment includes described in above-described embodiment Loudspeaker enclosure.Wherein, the composition structure of described loudspeaker enclosure and annexation, refer to above-described embodiment, will be the most superfluous at this State.

In actual applications, the electronic equipment that this utility model provides is specifically as follows mobile phone, panel computer etc..This practicality Novel this is not limited, as long as above-mentioned loudspeaker enclosure can be used.

Loudspeaker enclosure that this utility model provides and there is the electronic equipment of this loudspeaker enclosure have the advantages that logical Crossing to offer at described roof and run through the leak of its upper and lower surface, described leak connects described ante-chamber and extraneous and be The leak of cone-shaped, on the one hand can weaken ante-chamber resonance, reduce higher hamonic wave composition, improve listening quality, on the other hand adopt Can overcome the technical problem of processing straight tube shape leak frangibility syringe needle with the leak of cone-shaped, improving processing needle head can weigh Utilize number of times again, save cost of manufacture and preferably ensure that the concordance of converted products.

Above-described is only embodiment of the present utility model, it should be noted here that for the ordinary skill of this area For personnel, on the premise of creating design without departing from this utility model, it is also possible to make improvement, but these belong to this practicality Novel protection domain.

Claims (9)

1. a loudspeaker enclosure, it upper cover including having roof and described upper cover assemble lower cover and the receipts forming receiving space Being dissolved in the loudspeaker monomer in described receiving space, described roof includes near the lower surface of described loudspeaker monomer and with described The upper surface that lower surface is oppositely arranged, described loudspeaker monomer includes that vibrating diaphragm, described upper cover and described vibrating diaphragm surround the front operatic tunes, institute State loudspeaker enclosure be additionally provided with one with described front operatic tunes conducting deriving to the most described for sound that described loudspeaker monomer is produced Sound channel outside loudspeaker enclosure, the described front operatic tunes and described sound channel collectively form ante-chamber, it is characterised in that described in raise one's voice Device casing also includes that at least one runs through the upper and lower surface of described roof and arranges and connect described ante-chamber and extraneous letting out Small opening, described leak includes being positioned at the first opening of described upper surface, being positioned at the second opening of described lower surface and connect institute State the first opening and described second opening and the hole wall of inclined shape.

Loudspeaker enclosure the most according to claim 1, it is characterised in that described first opening and described second opening are circular The aperture of opening and described first opening less than the aperture of described second opening, described hole wall from described first opening to away from institute The central axial direction stating leak extends.

Loudspeaker enclosure the most according to claim 2, it is characterised in that described first opening is to the orthographic projection of described lower surface It is fully located in described second opening.

Loudspeaker enclosure the most according to claim 1, it is characterised in that described first opening and described second opening are circular The aperture of opening and described first opening more than the aperture of described second opening, described hole wall from described first opening near institute The central axial direction stating leak extends.

Loudspeaker enclosure the most according to claim 4, it is characterised in that described second opening is to the orthographic projection of described upper surface It is fully located in described first opening.

6. according to the loudspeaker enclosure described in any one of claim 1-5, it is characterised in that the central axis of described leak and institute The direction of vibration stating vibrating diaphragm is parallel.

Loudspeaker enclosure the most according to claim 1, it is characterised in that: the quantity of described leak is one and is located at and institute State the roof that the front operatic tunes is corresponding.

Loudspeaker enclosure the most according to claim 1, it is characterised in that: described upper cover also includes from described roof two lateral remote The sidewall that extends from described roof direction and connect the end wall of described sidewall, the one end open of described sound channel with described before The operatic tunes connects, and its other end opening is the sender connected with external environment, and described sender is positioned at described sidewall.

9. an electronic equipment, it is characterised in that include the loudspeaker enclosure as described in any one of claim 1-8.