CN206433142U

CN206433142U - Loudspeaker enclosure

Info

Publication number: CN206433142U
Application number: CN201720038750.7U
Authority: CN
Inventors: 张伏虎; 曾月; 王程良
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.The loudspeaker enclosure includes the loudspeaker monomer and sound absorption powder that Shang Gai and the upper lid cooperatively form the lower cover of receiving space and be contained in the receiving space, the retaining wall extended from the upper lid towards the direction of the lower cover is provided with the receiving space, the correspondence retaining wall is provided with breathable barrier in the receiving space, the retaining wall coordinates with the breathable barrier isolates a part of individual cavity by the receiving space, the loudspeaker monomer is contained in the individual cavity, receiving space of the sound absorption powder packed outside the individual cavity.The loudspeaker enclosure that the utility model is provided can not only prevent sound absorption powder from entering inside the loudspeaker monomer, and can improve the frequency acoustic performance of the loudspeaker enclosure.

Description

Loudspeaker enclosure

【Technical field】

The utility model is related to electroacoustic transduction field, more particularly to a kind of loudspeaker enclosure.

【Background technology】

With the fast development of science and technology, the popularity rate more and more higher of audio frequency apparatus, requirement of the people to audio frequency apparatus is not only The broadcasting of video is only limitted to, more requires to propose the reliability of audio frequency apparatus more require.The especially arrival in 4G epoch, it is mobile Multimedia technology also develops therewith, and many audio frequency apparatuses have a variety of amusement functions, such as video playback, digital vedio recording, game, GPS navigation etc., the requirement of its broadcasting tonequality to audio frequency apparatus also more and more higher.

In correlation technique, loudspeaker enclosure is mainly used in the broadcasting of audio signal as a kind of conventional electronic component.Raise The resonant frequency of sound device case is high, causes its low frequency performance poor, it is difficult to play out simple and honest abundant bass, therefore in order to improve loudspeaker Case tonequality, the filling generally inside loudspeaker enclosure absorbs sound powder to form the virtual operatic tunes of dbass, so that the virtual operatic tunes of dbass Size and the filling quantity of the powder that absorbs sound had a strong impact on the low-frequency effect of loudspeaker enclosure, how to expand the virtual operatic tunes of dbass With improve sound absorption powder filling quantity while prevent sound absorption powder enter loudspeaker monomer, to improve the low frequency of loudspeaker enclosure Acoustical behavior become one it is most important the problem of.

Therefore, it is necessary to which providing a kind of new loudspeaker enclosure solves above-mentioned technical problem.

【Utility model content】

The purpose of this utility model is to provide a kind of frequency acoustic performance good loudspeaker enclosure.

The technical solution of the utility model is as follows：

A kind of loudspeaker enclosure, including Shang Gai and the upper lid cooperatively form the lower cover of receiving space and are contained in described It is provided with loudspeaker monomer in receiving space and sound absorption powder, the receiving space from the upper lid towards the side of the lower cover To the retaining wall of extension, the correspondence retaining wall is provided with breathable barrier in the receiving space, the retaining wall with it is described it is ventilative every Off member coordinates isolates a part of individual cavity by the receiving space, and the loudspeaker monomer is contained in the individual cavity, Receiving space of the sound absorption powder packed outside the individual cavity.

It is preferred that, the retaining wall and the upper lid integrated injection molding.

It is preferred that, the retaining wall includes the end face of the remote upper lid and from the end face to the upper lid direction concave shape Into step surface, the breathable barrier is fixed on the end face, and the loudspeaker monomer is fixed on the step surface.

It is preferred that, the position of the upper lid correspondence individual cavity opens up acoustic aperture.

It is preferred that, the breathable barrier is screen cloth.

It is preferred that, the lower cover is plate-like structure, and the breathable barrier is set with the lower cover parallel interval.

It is preferred that, the upper lid is fixed with the lower cover by ultra-sonic welded.

The beneficial effect for the loudspeaker enclosure that the utility model is provided is：

Logical that breathable barrier is fixed on to the retaining wall for being formed at upper lid, the breathable barrier is fixed on the retaining wall, and Make the breathable barrier and the retaining wall be separated into the receiving space to house the individual cavity of loudspeaker monomer and be used for The receiving cavity of filling sound absorption powder, so that the breathable barrier can not only effectively prevent the sound absorption powder from entering institute Individual cavity is stated, and sufficiently make use of the space of the receiving space, the resonance of the loudspeaker enclosure is effectively reduced Frequency, improves the low frequency sensitivity of the loudspeaker enclosure, so as to effectively raise the frequency acoustic of the loudspeaker enclosure Energy.

【Brief description of the drawings】

Fig. 1 is the stereochemical structure decomposing schematic representation of the utility model loudspeaker enclosure；

Fig. 2 is the structural representation after loudspeaker enclosure shown in Fig. 1 is assembled；

Fig. 3 is the cross-sectional view along line A-A shown in Fig. 2.

【Embodiment】

The utility model is described in further detail with embodiment below in conjunction with the accompanying drawings.

Fig. 1, Fig. 2 and Fig. 3 are please referred to, wherein, Fig. 1 is the stereochemical structure exploded pictorial of the utility model loudspeaker enclosure Figure, Fig. 2 is the structural representation after loudspeaker enclosure 100 shown in Fig. 1 is assembled, and Fig. 3 is to show shown in Fig. 2 along the cross-section structure of line A-A It is intended to.Fig. 1 is the stereochemical structure decomposing schematic representation of the utility model loudspeaker enclosure.The loudspeaker enclosure 100 includes the upper and of lid 1 The upper lid 1 cooperatively forms the lower cover 3 of receiving space 2 and the retaining wall 4 for being contained in the receiving space 2, loudspeaker monomer 5, inhaled Sound powder 6 and breathable barrier 7.

The upper lid 1 includes bottom plate 11 and is opened in the acoustic aperture 13 of the bottom plate 11.

The lower cover 3 is plate-like structure, and the upper lid 1 and the upper lid 3 are fixed by Ultrasonic welding processes.

The retaining wall 4 is arranged at intervals with the lower cover 3, the retaining wall 4 structure annular in shape, and its cross section is rectangle.Institute Retaining wall 4 and the upper integrated injection molding of lid 1 are stated, the retaining wall 4 extends to be formed from the bottom plate 11 towards the direction of lower cover 3 And set around the acoustic aperture 13.

The retaining wall 4 includes the end face 41 set away from the bottom plate 11 and from the end face 41 towards the side of bottom plate 11 The step surface 43 formed to depression, the breathable barrier 7 is fixed on the end face 41 and set with the parallel interval of lower cover 3 Put, the loudspeaker monomer 5 is fixed on the step surface 43.

The breathable barrier 7, which is fixed on the end face 41 and coordinated with the retaining wall 4, is separated into the receiving space 2 Individual cavity 21 and receiving cavity 23.

The individual cavity 21 is used to house the loudspeaker monomer 5, and the acoustic aperture 13 is located at the individual cavity 21.

The receiving cavity 23 houses the sound absorption powder 6 formation virtual operatic tunes of dbass.

The virtual operatic tunes of the dbass is formed by filling the sound absorption powder 6 into the receiving cavity 23, makes described raise After the sound that sound device monomer 5 is produced enters the receiving cavity 23 through the breathable barrier 7, so that the sound absorption powder 6 Increase its transmission path, for reducing the resonant frequency of the loudspeaker enclosure 100, improving the audio property of the loudspeaker enclosure 100 Energy, especially frequency acoustic performance.

Enclosed and formed by the retaining wall 4 and the breathable barrier 7 specifically, the loudspeaker monomer 5 is contained in completely The individual cavity 21 in, not only avoid it is described sound absorption powder 6 enter the loudspeaker monomer 5 internal influence described in raise The acoustical behavior of sound device monomer 5, and the sound absorption powder 6 is filled in the receiving cavity 23 with maximum quantity, so that The space of the receiving cavity 23 has obtained great utilization.

The breathable barrier 7 is screen cloth or nethike embrane with airing function, specifically, in present embodiment, it is described Breathable barrier 7 is screen cloth.

The breathable barrier 7 is fixed by way of hot melt with the end face 41.It can so reduce described ventilative The space of separator 7 and the retaining wall 4 receiving space 2 shared when fixing, can profit come improve the receiving space 2 With rate.

Certainly, the breathable barrier 7 can also be viscous using glue with the fixed form of the end face 41 of the retaining wall 4 Connect.

The logical retaining wall 4 that the fixation of breathable barrier 7 is formed to upper lid 1 of loudspeaker enclosure 100 that the utility model is provided, it is described Breathable barrier 7 is fixed on the retaining wall 4, and the breathable barrier 7 and the retaining wall 4 is separated the receiving space 2 Receiving cavity 23 into the individual cavity 21 for housing loudspeaker monomer 5 and for filling sound absorption powder 6 so that it is described it is ventilative every Off member 7 can not only effectively prevent the sound absorption powder 6 from entering the individual cavity 21, and sufficiently make use of the collecting The space in space 2, effectively reduces the resonant frequency of the loudspeaker enclosure 100, improves the low frequency of the loudspeaker enclosure 100 Sensitivity, so as to effectively raise the frequency acoustic performance of the loudspeaker enclosure 100.

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 Shang Gai and the upper lid cooperatively form the lower cover of receiving space and are contained in the receipts Hold the loudspeaker monomer and sound absorption powder in space, it is characterised in that be provided with the receiving space from the upper lid towards institute State the retaining wall of the direction extension of lower cover, the correspondence retaining wall is provided with breathable barrier in the receiving space, the retaining wall with The breathable barrier coordinates isolates a part of individual cavity by the receiving space, and the loudspeaker monomer is contained in described Individual cavity, receiving space of the sound absorption powder packed outside the individual cavity.

2. loudspeaker enclosure according to claim 1, it is characterised in that the retaining wall and the upper lid integrated injection molding.

3. loudspeaker enclosure according to claim 1, it is characterised in that the retaining wall include end face away from the upper lid and Be recessed the step surface to be formed from the end face to the upper lid direction, and the breathable barrier is fixed on the end face, described to raise Sound device monomer solid schedules the step surface.

4. loudspeaker enclosure according to claim 1, it is characterised in that open the position of the upper lid correspondence individual cavity If acoustic aperture.

5. loudspeaker enclosure according to claim 1, it is characterised in that the breathable barrier is screen cloth.

6. loudspeaker enclosure according to claim 1, it is characterised in that the lower cover is plate-like structure, it is described it is ventilative every Off member is set with the lower cover parallel interval.

7. loudspeaker enclosure according to claim 1, it is characterised in that the upper lid and the lower cover are solid by ultra-sonic welded It is fixed.