CN208353586U - Loudspeaker enclosure - Google Patents

Abstract

The utility model provides a kind of loudspeaker enclosure, including lower cover, assembles with the lower cover and to form the upper cover of accommodating space, the sounding monomer that is contained in the accommodating space, be formed in the accommodating space and lead sound channel, container, through-hole, sound absorbing layer and cover film；The sounding monomer includes the vibrating diaphragm for vibration sounding, and the vibrating diaphragm and the upper cover interval are arranged and surround the preceding operatic tunes jointly, and the preceding operatic tunes is in communication with the outside and ante-chamber is collectively formed with the preceding operatic tunes by the sound channel of leading；The container is recessed to the lower cover direction from the side far from the lower cover of the upper cover and is formed, the through-hole is arranged through the container and is connected to the ante-chamber, the through-hole, the fixed side far from the through-hole for being covered on the sound absorbing layer of the cover film are fixed in the container and are covered in the sound absorbing layer receiving.Compared with the relevant technologies, the loudspeaker distortions of the utility model are small and acoustical behavior is good.

Description

Loudspeaker enclosure

[technical field]

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

[background technique]

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 relevant technologies includes shell, is contained in the intracorporal sounding monomer of the shell, through the shell The through-hole of body setting and the cover board for being covered on the through-hole, the sounding monomer includes the vibrating diaphragm for vibration sounding, the vibration Film and the shell interval are arranged to form the preceding operatic tunes, and the loudspeaker enclosure further includes leading sound for what the preceding operatic tunes was in communication with the outside Channel, the preceding operatic tunes and the ante-chamber led sound channel and collectively form the loudspeaker enclosure, the through-hole and the ante-chamber.

However, the inner wall of the ante-chamber is hard plastic or metal material shape in the loudspeaker enclosure of the relevant technologies At rigid walls, the damping of rigid walls is small and Oscillation Amplitude is small, and radiation energy is limited, can not effectively pass the cavity energy of ante-chamber Broadcast is gone, thus cannot absorb the energy of assigned frequency.Therefore, the structure it is easier that the ante-chamber rigid walls generation resonate into And the sounding of the loudspeaker enclosure is caused to be distorted, influence 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 good loudspeaker enclosure of small and acoustical behavior is distorted the purpose of this utility model is to provide a kind of.

In order to achieve the above object, the utility model provides a kind of loudspeaker enclosure, including lower cover, assembles with the lower cover The upper cover for forming accommodating space, is formed in the accommodating space and leads sound the sounding monomer being contained in the accommodating space Channel, container, through-hole, sound absorbing layer and cover film；The sounding monomer includes the vibrating diaphragm for vibration sounding, the vibrating diaphragm with The upper cover interval is arranged simultaneously surrounds the preceding operatic tunes jointly, it is described lead sound channel by the preceding operatic tunes be in communication with the outside and with it is described before Ante-chamber is collectively formed in the operatic tunes；A side of the container from the upper cover far from the lower cover is to lower cover direction concave shape At the through-hole is arranged through the container and is connected to the ante-chamber, and the container is fixed in the sound absorbing layer receiving It is interior and cover the through-hole, the fixed side far from the through-hole for being covered on the sound absorbing layer of the cover film.

Preferably, the upper cover includes ontology, through the ontology and the opening that is connected to the ante-chamber and is fixed on The ontology and the sheet metal for being covered on the opening completely, the container are opened in the sheet metal.

Preferably, the container forms through the stamping process.

Preferably, the through-hole is connected to the preceding operatic tunes and is right against the sounding monomer setting.

Preferably, the sound absorbing layer is fixed on the container by glue stickup.

Preferably, the sheet metal is integrated with the ontology injection molding.

Preferably, the sound absorbing layer is made of acoustical cotton.

Preferably, the aperture of the through-hole is 5mm.

Preferably, the sheet metal is steel disc.

Compared with the relevant technologies, container is arranged in the upper cover in the loudspeaker enclosure of the utility model, and is arranged and runs through institute It states the through-hole of container and is connected to the through-hole with the ante-chamber, by the way that successively lid sets the sound-absorbing on the through-hole Layer and the cover film, the through-hole destroys the rigid resonance condition of the ante-chamber, while the sound absorbing layer is to higher frequency With absorption, to weaken the resonance of the ante-chamber, medium-high frequency distortion is reduced, and then improve listening for the loudspeaker enclosure Sense and acoustical behavior；The setting of the container facilitates installation, the cover film is for increasing so that the upper lid surface is smooth Acoustic resistance prevents the ante-chamber gas leakage, protects the reliability of the loudspeaker enclosure.

[Detailed description of the invention]

It, below will be to required in embodiment description 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 Obtain other attached drawings, in which:

Fig. 1 is the schematic perspective view 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 line A-A cross-sectional view along Fig. 1.

[specific embodiment]

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 All other embodiment obtained, fall within the protection scope of the utility model.

Please refer to Fig. 1-3, the utility model provides a kind of loudspeaker enclosure 100, including shell 1, sounding monomer 2, Lead sound channel 3, container 4, through-hole 5, sound absorbing layer 6 and cover film 7.

The sounding monomer 2 is contained in the shell 1.In present embodiment, the shell 1 includes lower cover 11 and institute It states lower cover 11 and assembles the upper cover 12 to form accommodating space 10.The sounding monomer 2 is fixed in the accommodating space 13.

The sounding monomer 2 includes the vibrating diaphragm 21 for vibration sounding, the vibrating diaphragm 21 and the shell 1 interval setting shape At the preceding operatic tunes 8.Specifically, the vibrating diaphragm 21 surrounds the preceding operatic tunes 8 with the upper cover 12 jointly；The vibrating diaphragm 21 with it is described on Lid 12 and the lower cover 11 surround back cavity 101 jointly.

The sound channel 3 of leading is formed in the accommodating space 10, in present embodiment, specifically, described lead sound channel 3 It is formed in the upper cover 12.

The preceding operatic tunes 8 is in communication with the outside by the sound channel 3 of leading, and is used to form side vocal structure, and described leads sound Ante-chamber 102 is collectively formed in channel 3 and the preceding operatic tunes 8.

That is, the accommodating space 10 is separated by the vibrating diaphragm 21 (the sounding monomer 2) in present embodiment The ante-chamber 102 and the back cavity 101.Wherein, the ante-chamber 102 leads sound channel 3 with described including the preceding operatic tunes 8, is used for It speaks；The back cavity 101 is used to improve the frequency acoustic performance of the loudspeaker enclosure 100.

A side of the container 4 from the upper cover 12 far from the lower cover 11 is to the 11 direction concave shape of lower cover At.

Specifically, the upper cover 12 is opened including ontology 121, through the ontology 121 and with what the ante-chamber 102 was connected to It mouthfuls 122 and is fixed on the ontology 121 and is covered on the sheet metal 123 of the opening 122 completely.For example, the sheet metal 123 are made of steel disc.The setting of sounding monomer 2 described in 122 faces of the opening.The sheet metal 123 is molded with the ontology 121 It is molded as one.

The container 4 is opened in the sheet metal 123.In present embodiment, the container 4 is through the stamping process Molding.

The through-hole 5 is arranged through the upper cover 12 and is connected to the ante-chamber 102.In present embodiment, the through-hole 5 It is arranged through the container 4.

More preferably, the through-hole 5 is connected to the preceding operatic tunes 8 and is right against the sounding monomer 2 and is arranged.

Certainly, the through-hole 5 can also be set to the position that sound channel 3 is led described in the correspondence of the upper cover 12, this is also can Capable.

In present embodiment, the aperture of the through-hole 5 is set as 5mm, is certainly not limited to this.The setting of the through-hole 5 destroys The resonance condition of ante-chamber 102 (the especially described preceding operatic tunes 8) rigidity.

The sound absorbing layer 6 is fixed to be contained in the container 4 and covers the setting of through-hole 5, for absorbing particular resonance The vibration of frequency, such as medium-high frequency.The Young's modulus or intensity of the sound absorbing layer 6 are less than the shell 1, and (more excellent is the upper cover 12) Young's modulus or intensity.

In present embodiment, the sound absorbing layer 6 is made of acoustical cotton.Certainly, material is not limited to this, can also be other Sound-absorbing material, this is all feasible.

The sound absorbing layer 6 is fixed in the container 4 by the stickup of glue 9.In this implementation, more preferably, the sound-absorbing It is fixed between layer 6 and the container 4 for non-tight, i.e., there are air leakages for described 6 periphery of sound absorbing layer.

After the setting of the container 4 is so that the sound absorbing layer 6 is fixed, protecting the intensity of the upper cover 12 constant In the case of, make the upper cover 12 of the loudspeaker enclosure 100 in flat configuration, facilitates with installation.Meanwhile it can be in square one The lower thickness for increasing the sound absorbing layer 6 improves drop distortion effect.

By the rigid walls of the replacement of the sound absorbing layer 6 in the related technology in the utility model, and the sound absorbing layer 6 exists One resonance frequency, by design, when the resonance frequency of the sound absorbing layer 6 is adjusted to a certain frequency, near resonance frequency, The sound absorbing layer 6 can generate stronger vibration, can be by (this implementation in the ante-chamber 102 in 100 sounding of loudspeaker enclosure Before being in mode in the operatic tunes 8) the sound absorbing layer 6 resonance frequency near energy pass to outside the ante-chamber 102, to reach To the purpose for absorbing energy near assigned frequency, reaching reduces resonance peak, improves distortion, improves listening for the loudspeaker enclosure 100 The purpose of sense and acoustical behavior；It can be by medium density in the ante-chamber 102 in addition, substituting rigid walls by the sound absorbing layer 6 It passes to outside the ante-chamber 102, further realize the covibration for reducing the loudspeaker enclosure 100 and improves distortion.

It can be specifically designed by material, area, shape and the thickness to the sound absorbing layer 6 to realize above-mentioned purpose.

The fixed side far from the upper cover 12 for being covered on the sound absorbing layer 6 of the cover film 7.The cover film 7 It is arranged and realizes that the purpose for increasing acoustic resistance improves the loudspeaker enclosure 100 to prevent the effect of the 8 gas leakage leakage sound of the preceding operatic tunes Reliability.

Compared with the relevant technologies, container is arranged in the upper cover in the loudspeaker enclosure of the utility model, and is arranged and runs through institute It states the through-hole of container and is connected to the through-hole with the ante-chamber, by the way that successively lid sets the sound-absorbing on the through-hole Layer and the cover film, the through-hole destroys the rigid resonance condition of the ante-chamber, while the sound absorbing layer is to higher frequency With absorption, to weaken the resonance of the ante-chamber, medium-high frequency distortion is reduced, and then improve listening for the loudspeaker enclosure Sense and acoustical behavior；The setting of the container facilitates installation, the cover film is for increasing so that the upper lid surface is smooth Acoustic resistance prevents the ante-chamber gas leakage, protects the reliability of the loudspeaker enclosure.

Above-described is only the embodiments of the present invention, 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 it is practical Novel protection scope.

Claims (9)

1. a kind of loudspeaker enclosure assembles including lower cover, with the lower cover and to form the upper cover of accommodating space, be contained in the receiving sky In sounding monomer and be formed in the accommodating space and lead sound channel, the sounding monomer includes for vibration sounding Vibrating diaphragm, the vibrating diaphragm and the upper cover interval are arranged and surround jointly the preceding operatic tunes, it is described lead sound channel will the preceding operatic tunes with outside Boundary is connected to and ante-chamber is collectively formed with the preceding operatic tunes, which is characterized in that the loudspeaker enclosure further includes by the remote of the upper cover From a side of the lower cover to the lower cover direction be recessed the container to be formed, through the container be arranged and with the ante-chamber The through-hole of connection, receiving, which are fixed in the container and cover the sound absorbing layer of the through-hole and fix, is covered on the sound-absorbing The cover film far from the through-hole side of layer.

2. loudspeaker enclosure according to claim 1, which is characterized in that the container forms through the stamping process.

3. loudspeaker enclosure according to claim 1, which is characterized in that the through-hole is connected to and is right against with the preceding operatic tunes The sounding monomer setting.

4. loudspeaker enclosure according to claim 1, which is characterized in that the sound absorbing layer is fixed on described by glue stickup Container.

5. loudspeaker enclosure according to claim 4, which is characterized in that the upper cover includes ontology, runs through the ontology simultaneously It the opening that is connected to the ante-chamber and is fixed on the ontology and is covered on the sheet metal of the opening, the container completely It is opened in the sheet metal.

6. loudspeaker enclosure according to claim 5, which is characterized in that the sheet metal is one with the ontology injection molding Body.

7. loudspeaker enclosure according to claim 1, which is characterized in that the sound absorbing layer is made of acoustical cotton.

8. loudspeaker enclosure according to claim 1, which is characterized in that the aperture of the through-hole is 5mm.

9. loudspeaker enclosure according to claim 5, which is characterized in that the sheet metal is steel disc.