CN206433156U

CN206433156U - Loudspeaker enclosure

Info

Publication number: CN206433156U
Application number: CN201720036072.0U
Authority: CN
Inventors: 印兆宇
Original assignee: AAC Technologies Pte Ltd
Current assignee: AAC Technologies Pte Ltd
Priority date: 2017-01-12
Filing date: 2017-01-12
Publication date: 2017-08-22
Anticipated expiration: 2027-01-12

Abstract

The utility model provides a kind of loudspeaker enclosure, including lower cover, assemble with the lower cover the upper lid to form receiving space, the sounding monomer being contained in the receiving space, from cover on described extend and be connected to the retaining wall of the lower cover to the lower cover direction, be recessed the intercommunicating pore and acoustical cotton that are formed by the side of its lateral close lower cover of the close upper lid of the retaining wall.The sounding monomer and the upper lid surround ante-chamber, the sounding monomer surrounds back cavity jointly with the lower cover and the upper lid, the back cavity is separated the first back cavity and the second back cavity by the retaining wall, the intercommunicating pore makes first back cavity be connected with second back cavity, the acoustical cotton is covered on the intercommunicating pore and is adhesively fixed with the upper lid completely, filling sound-absorbing particle in second back cavity.Compared with correlation technique, loadspeaker structure of the present utility model is simple and audio performance especially low frequency performance is good.

Description

Loudspeaker enclosure

【Technical field】

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

【Background technology】

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

The case of raising one's voice of correlation technique assembles the Shang Gai to form a receiving space, a collecting including lower cover, with the lower cover In the sounding monomer in the receiving space and from covering the retaining wall extended to lower cover direction on described；The sounding monomer includes shaking Film, the vibrating diaphragm and the upper lid surround ante-chamber, and the sounding monomer surrounds back cavity with the lower cover, and the retaining wall surrounds auxiliary Sounding chamber, it is sticked breathable membrane close to the side of the lower cover, and sound-absorbing granulated is set by being filled out to the auxiliary sounding intracavitary Into the virtual operatic tunes of D-BASS, so as to improve the frequency acoustic performance of the loudspeaker enclosure.

However, in the loudspeaker enclosure of correlation technique, the breathable membrane is to be set parallel to the lower cover, is raised because described in At the afterbody of sound device case, that is, the position for corresponding to the auxiliary sounding chamber, the lower cover is not a plane, there is height different Step-like convex, recess, and the breathable membrane for prevent with lower cover occur shell shake phenomenon, it is necessary to make the breathable membrane with The lower cover is arranged at intervals, therefore, and the convex portion that the lower cover extends at nearest position to the breathable membrane is limitation The length of the retaining wall extension, so that the volume of the auxiliary sounding chamber is limited, segment space can not be utilized effectively, and institute State retaining wall and also take certain space so that the auxiliary sounding chamber does not maximize, limits the audio performance 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 simple in construction and audio performance that especially low frequency performance is good raises one's voice Device case.

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 lid that forms receiving space, the sounding monomer being contained in the receiving space, extended to the lower cover direction from covering on described And be connected to the lower cover retaining wall, by the retaining wall close to the upper lid one it is lateral its close to the lower cover side be recessed The intercommunicating pore and acoustical cotton of formation.The sounding monomer and the upper lid surround ante-chamber, the sounding monomer and the lower cover And the upper lid surrounds back cavity jointly, the back cavity is divided into the first back cavity for installing the sounding monomer by the retaining wall With the second back cavity for forming the virtual operatic tunes, the intercommunicating pore is for slant-top core-pulling technological forming and by first back cavity and institute The connection of the second back cavity is stated, the acoustical cotton is covered on the intercommunicating pore and is adhesively fixed with the upper lid completely, after described second Intracavitary fills sound-absorbing particle.

It is preferred that, the intercommunicating pore includes being provided with reinforcement between two and two intercommunicating pores.

It is preferred that, the intercommunicating pore is rectangle.

It is preferred that, the acoustical cotton is fixed on the side of close first back cavity of the retaining wall.

It is preferred that, the loudspeaker enclosure also includes the filling hole set through the upper lid, the filling hole and described the Two back cavities are connected, and the sound-absorbing particle pours into second back cavity by the filling hole.

It is preferred that, the sound-absorbing particle is zeolite.

It is preferred that, the lower cover passes through ultrasonic welding process fixing seal with the upper lid.

Compared with correlation technique, loudspeaker enclosure of the present utility model sets the retaining wall that the back cavity is divided into installing institute State the first back cavity of sounding monomer and the second back cavity for forming the virtual operatic tunes, and on the retaining wall by slant-top core-pulling into Type technique forms the intercommunicating pore, and the intercommunicating pore uniformity is good, first back cavity is connected with second back cavity, by institute State acoustical cotton and be fixed on the retaining wall so that second back cavity is completely formed the virtual operatic tunes, and its using volume not Limited by planform, this configuration avoids the volume that retaining wall and the acoustical cotton take second back cavity, so that relatively The volume of the virtual operatic tunes is improved, its volume is maximized, and then the audio for improving the loudspeaker enclosure of high degree is outstanding It is frequency acoustic performance.

【Brief description of the drawings】

, below will be to needed for embodiment description in order to illustrate more clearly of the technical scheme in the utility model embodiment The accompanying drawing to be used is briefly described, it should be apparent that, drawings in the following description are only some realities of the present utility model Example is applied, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to these accompanying drawings Other accompanying drawings are obtained, wherein：

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

Fig. 2 is Fig. 1 part isometric structure decomposition figure；

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

【Embodiment】

Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the present utility model, rather than whole Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made The all other embodiment obtained, belongs to the scope of the utility model protection.

Please refer to Fig. 1-2, wherein, Fig. 1 is the dimensional structure diagram of the utility model loudspeaker enclosure；Fig. 2 is Fig. 1 Part isometric structure decomposition figure.The utility model provides a kind of loudspeaker enclosure 100, including lower cover 1, upper lid 2, sounding monomer 3rd, retaining wall 4, intercommunicating pore 5, acoustical cotton 6 and filling hole 7.It should be noted that in the utility model, the upper lid 2 be with it is described The sounding side of sounding monomer 3 is oppositely arranged.

Fig. 3 is please referred to, is the cut-away view of the line A-A along along Fig. 1.The lower cover 1 assembles to be formed jointly with the upper lid 2 Receiving space 8.Specifically, the lower cover 1 forms fixing seal with the upper lid 2 by ultrasonic welding process.

The sounding monomer 3 is contained in the receiving space 8, and the sounding monomer 3 and the upper lid 2 surround ante-chamber 81, For sounding；The sounding monomer 3 surrounds back cavity 82 jointly with the lower cover 1 and the upper lid, for improving frequency acoustic Energy.I.e. described receiving space 8 is separated into the ante-chamber 81 and the back cavity 82 by the sounding monomer 3.

The retaining wall 4 extends from the upper lid 2 to the direction of lower cover 1 and is connected to the lower cover 1.The retaining wall 4 will The back cavity 82 is divided into the first back cavity 821 for installing the sounding monomer 3 and the second back cavity for forming the virtual operatic tunes 822.In present embodiment, the lower cover 1 includes the first lower cover 11 for being covered on first back cavity 821 and is covered on described the Second bonnet 12 of two back cavities 822.

By filling sound-absorbing particle (not shown) into second back cavity 822, make the formation of the second back cavity 822 D- The virtual operatic tunes of BASS, sound enters after second back cavity 822, increases its transmission path by the sound-absorbing particle, for changing It is apt to the audio performance of the loudspeaker enclosure 100, particularly frequency acoustic performance.Specifically, in present embodiment, the sound-absorbing Grain is zeolite.

Lateral its of the intercommunicating pore 5 by the retaining wall 4 close to the upper lid 2 is recessed close to the side of the lower cover 1 Formed, the intercommunicating pore 5 makes first back cavity 821 be connected with second back cavity 822.In present embodiment, the connection Hole 5 is slant-top core-pulling technological forming, and the technique can reduce mould volume so that the structure of the intercommunicating pore 5 is more simplified.

Specifically, the intercommunicating pore 5 includes being provided with reinforcement 51 between two and two intercommunicating pores 5.More excellent, institute Intercommunicating pore 5 is stated for rectangle.Certainly, its shape not limited to this, or other shapes, such as circle.In addition, the intercommunicating pore 5 An entirety also is understood as, i.e., two units are divided into by the reinforcement 51.

The acoustical cotton 6 is covered on the intercommunicating pore 5 completely and its end is adhesively fixed with upper lid 2, to the intercommunicating pore 5 Formed and stopped, prevent the sound-absorbing particle from entering first back cavity 821 from second back cavity 822.

Specifically, the acoustical cotton 6 is fixed on the retaining wall 4 and the intercommunicating pore 5 is completely covered.More excellent, it is described to inhale Sound cotton 6 is fixed on the side of close first back cavity 821 of the retaining wall 4, and the structure setting can greatly increase Volume is utilized as the effective of second back cavity 822 of the virtual operatic tunes, improves audio frequency effect.

The one side of acoustical cotton 6 prevents the sound-absorbing particle from draining to first back cavity 811 from second back cavity 822 And influence the acoustical behavior of the sounding monomer 3；Another aspect sound-absorbing cotton structure also has the effect of lifting audio performance in itself, Equivalent to the volume for further increasing the virtual operatic tunes.

Certain not limited to this of acoustical cotton 6, as long as the sound-absorbing particle can be isolated into first back cavity 821 and energy Ventilative entrant sound.

When the acoustical cotton 6 is covered on two intercommunicating pores 5, the reinforcement 51 to it is described can be to the sound-absorbing Particle is stopped that is, the barrier effect to the acoustical cotton 6 is strengthened, and the acoustical cotton 6 formation is protected and supported, together The center section of Shi Suoshu acoustical cottons 6 is securable to the reinforcement 51, to strengthen the fixing intensity of the acoustical cotton 6, improves Its stability.

The filling hole 7 is set through the upper lid 2, and the filling hole 7 is connected with second back cavity 822, described Sound-absorbing particle pours into second back cavity 822 by the filling hole 7, so that second back cavity 822 formation D-BASS The virtual operatic tunes.

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 the utility model creation design is not departed from, improvement can also be made, but these belong to this practicality New protection domain.

Claims

1. a kind of loudspeaker enclosure, including lower cover and the lower cover assemble the upper lid to form receiving space and are contained in collecting sky In sounding monomer, the sounding monomer and the upper lid surround ante-chamber, the sounding monomer and the lower cover and it is described on Lid surrounds back cavity jointly, it is characterised in that

The loudspeaker enclosure also includes extending and be connected to the retaining wall of the lower cover to the lower cover direction, by institute from covering on described Retaining wall is stated close to lateral its of the upper lid close to the side of the lower cover to be recessed the intercommunicating pore and acoustical cotton to be formed；

The back cavity is divided into the first back cavity for installing the sounding monomer and for forming the virtual operatic tunes by the retaining wall The second back cavity；

The intercommunicating pore is slant-top core-pulling technological forming and connects first back cavity and second back cavity；

The acoustical cotton is covered on the intercommunicating pore and is adhesively fixed with the upper lid completely, filling sound-absorbing in second back cavity Particle.

2. loudspeaker enclosure according to claim 1, it is characterised in that the intercommunicating pore includes two and two connections Reinforcement is provided between hole.

3. loudspeaker enclosure according to claim 2, it is characterised in that the intercommunicating pore is rectangle.

4. loudspeaker enclosure according to claim 1, it is characterised in that the acoustical cotton is fixed on the close institute of the retaining wall State the side of the first back cavity.

5. loudspeaker enclosure according to claim 1, it is characterised in that the loudspeaker enclosure also includes setting through the upper lid The filling hole put, the filling hole is connected with second back cavity, and the sound-absorbing particle pours into described by the filling hole Two back cavities.

6. loudspeaker enclosure according to claim 1, it is characterised in that the sound-absorbing particle is zeolite.

7. loudspeaker enclosure according to claim 1, it is characterised in that the lower cover passes through ultrasonic bonding with the upper lid Technique fixing seal.