CN206524921U - Loudspeaker enclosure - Google Patents

Abstract

The utility model provides a kind of loudspeaker enclosure.The loudspeaker enclosure includes housing and the loudspeaker monomer being contained in the housing, the loudspeaker monomer includes the vibrating diaphragm for vibration sounding, the vibrating diaphragm is arranged at intervals to form the preceding operatic tunes with the housing, the loudspeaker enclosure also includes leading sound passage by what the preceding operatic tunes was in communication with the outside, the preceding operatic tunes leads the ante-chamber that sound passage collectively forms the loudspeaker enclosure with described, the housing includes the housing wall of the correspondence preceding cavity region, the housing wall includes the groove being recessed from its inner surface to its outer surface direction and the brace rod being arranged in the groove, the loudspeaker enclosure also includes the nethike embrane for the inner surface and covering groove for being fixed in the housing wall, the nethike embrane is fixedly connected with the brace rod.Compared with prior art, the ante-chamber frequency response resonance peak of the loudspeaker enclosure and the reduction of distortion spike, and nethike embrane and vibrating diaphragm resonance can be weakened, higher hamonic wave is reduced, sense of hearing improves.

Description

Loudspeaker enclosure

【Technical field】

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

【Background technology】

With the arrival in mobile Internet epoch, the popularity rate more and more higher of audio frequency apparatus, people want to audio frequency apparatus The broadcasting for being not limited only to video/audio is asked, the more reliability to audio frequency apparatus proposes more require.Especially 4G epoch arrive Come, Technology of Mobile Multimedia also develops therewith, many audio frequency apparatuses have a variety of amusement functions, such as video playback, digital vedio recording, Game, GPS navigation etc..

And in audio frequency apparatus, loudspeaker enclosure is a kind of conventional electronic component, it is mainly used in the broadcasting of audio signal. The loudspeaker enclosure of prior art includes upper shell, assembles the lower house to form receiving space with the upper shell and be contained in institute The loudspeaker monomer in receiving space is stated, the loudspeaker monomer includes vibrating diaphragm, and the vibrating diaphragm and the upper shell surround preceding sound Chamber, the loudspeaker enclosure be additionally provided with one with the preceding operatic tunes turn on and be used for by the sound that the loudspeaker monomer is produced export to Sound passage is led outside the loudspeaker enclosure, the preceding operatic tunes leads the ante-chamber that sound passage collectively forms the loudspeaker enclosure with described, The side of the upper shell is arranged at for connecting the sender of external environment and the ante-chamber, before the loudspeaker enclosure can be present Chamber resonance, causes frequency response to have resonance peak, while there are 2 times, 3 inferior distortion spikes, influences listening quality.

In correlation technique, the housing includes the housing wall of the correspondence preceding cavity region, and the housing wall is included from described The groove that the inner surface of housing wall is recessed to the outer surface direction of the housing wall, in the fixed nethike embrane of the inner surface of the housing wall The groove is covered, to reduce frequency response resonance peak and distortion spike, but the nethike embrane can resonate with the vibrating diaphragm, make height The composition increase of subharmonic, causes sense of hearing to decline.

Therefore, it is necessary that providing a kind of new loudspeaker enclosure solves the above problems in fact.

【Utility model content】

The purpose of this utility model is that ante-chamber frequency response resonance peak and distortion spike can be reduced and can weaken by providing one kind The loudspeaker enclosure that nethike embrane resonates with vibrating diaphragm.

In order to solve the above-mentioned technical problem, a kind of loudspeaker enclosure is devised, it includes housing and is contained in the housing Loudspeaker monomer, the loudspeaker monomer includes the vibrating diaphragm for vibration sounding, and the vibrating diaphragm and the housing are arranged at intervals The operatic tunes before being formed, the loudspeaker enclosure further comprises leading sound passage, the preceding operatic tunes by what the preceding operatic tunes was in communication with the outside The ante-chamber that sound passage collectively forms the loudspeaker enclosure is led with described, the housing includes the housing of the correspondence preceding cavity region Wall, the housing wall includes the groove being recessed from the inner surface of the housing wall to the outer surface direction of the housing wall, described Housing wall further comprises the brace rod being arranged in the groove, and the loudspeaker enclosure further comprises being fixed in the housing The inner surface of wall and the nethike embrane of the covering groove, the nethike embrane are fixedly connected with the brace rod.

It is preferred that, the brace rod be arranged in parallel.

It is preferred that, the brace rod is arranged in a crossed manner.

It is preferred that, at least one brace rod passes through the center of the groove.

It is preferred that, the groove is arranged at the preceding operatic tunes or/and described led in sound passage.

It is preferred that, the groove is arranged at the underface of the vibrating diaphragm.

It is preferred that, the nethike embrane is fixed in the inner surface and the brace rod of the housing wall by hot pressing mode.

It is preferred that, the nethike embrane is non-woven fabrics, nylon mesh grid, wool weaving net, wire netting or paper one kind therein.

It is preferred that, the acoustic resistance of the nethike embrane is 3~20ohms.

Compared with prior art, the loudspeaker enclosure that the utility model is provided has the advantages that：

First, it is recessed from the inner surface of the housing wall of the correspondence preceding cavity region to the outer surface direction of the housing wall and is formed Groove, and the nethike embrane of the affixed covering groove of inner surface in the housing wall, diaphragm oscillations promote the air stream in ante-chamber Move and produce sound wave, air-flow and sound wave part are absorbed by nethike embrane, can partly pass through the nethike embrane and anti-by the bottom land of the groove It is emitted back towards and to be absorbed once by the nethike embrane again, when the acoustic resistance of the nethike embrane is suitable, the ante-chamber air-flow can be reduced Speed, while reducing frequency response resonance peak and distortion spike, improves listening quality.

2nd, the housing wall further comprises the brace rod being arranged in the groove, and the setting of the brace rod can be with Weaken the nethike embrane to resonate with the vibrating diaphragm, reduce higher harmonic component, further improve listening quality.

【Brief description of the drawings】

The perspective exploded view for the loudspeaker enclosure that Fig. 1 provides for the utility model；

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

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

Fig. 4 is the assembling schematic diagram of the upper shell of loudspeaker enclosure and nethike embrane shown in 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 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 every other embodiment obtained, belongs to the scope of the utility model protection.

Please refer to Fig. 1 to Fig. 4, the perspective exploded view for the loudspeaker enclosure that Fig. 1 provides for the utility model, Fig. 2 The three-dimensional assembling schematic diagram of loudspeaker enclosure shown in Fig. 1, Fig. 3 is sectional view of the loudspeaker enclosure along line A-A shown in Fig. 2, and Fig. 4 is figure The upper shell of loudspeaker enclosure shown in 1 and the assembling schematic diagram of nethike embrane.The utility model provides a kind of loudspeaker enclosure 1, described to raise one's voice Device case 1 includes housing 10 and the loudspeaker monomer 30 being contained in the housing 10.

The housing 10 includes upper shell 11 and the lower house 13 for surrounding receiving space 10A is assembled with the upper shell 11, The loudspeaker monomer 30 is contained in the receiving space 10A.

The loudspeaker monomer 30 includes the vibrating diaphragm 31 for vibration sounding, and the vibrating diaphragm 31 is spaced with the upper shell 11 The operatic tunes 51 before being formed is set, and the vibrating diaphragm 31, the upper shell 11 surround relative with the preceding operatic tunes 51 with the lower house 13 The rear operatic tunes 60.The loudspeaker enclosure 1 further comprises leading sound before sound passage 53, institute by what the preceding operatic tunes 51 was in communication with the outside Chamber 51 leads the ante-chamber 50 that sound passage 53 collectively forms the loudspeaker enclosure 1 with described.The sound passage 53 of leading is arranged at upper shell 11, what it included connecting external environment and the ante-chamber 50 goes out acoustic aperture 531, in the present embodiment, the quantity of the outlet sound mouth 531 For two, formation is spaced by being contained in the dividing plate 113 led in sound passage 53.

Because the ante-chamber 50 has resonance, so as to cause frequency response to have resonance peak, while there are 2 times, 3 inferior distortion points Peak, influences listening quality.In order to improve listening quality, by setting the nethike embrane of groove and covering groove to enter in preceding cavity region Row is improved.

Specifically, the upper shell 11 includes the housing wall 111 in the correspondence region of ante-chamber 50, and the housing wall 111 is wrapped Include the inner surface 1111 close to the vibrating diaphragm 31, the outer surface 1113 being oppositely arranged with the inner surface 1111, from the housing Groove 1115 and be arranged at described recessed that the inner surface 1111 of wall 111 is formed to the depression of outer surface 1113 of the housing wall 111 Brace rod 1117 in groove 1115.The loudspeaker enclosure 1 further comprises the inner surface 1111 for being fixed in the housing wall 111 And the nethike embrane 70 of the covering groove 1115.The vibration of vibrating diaphragm 31 promotes air flow and generation sound in the ante-chamber 50 Ripple, air-flow and sound wave part are absorbed by the nethike embrane 70, partly can be anti-by the bottom land of the groove 1115 through the nethike embrane 70 It is emitted back towards to be absorbed once by the nethike embrane 70 again, that is, is absorbed twice, can be with when the acoustic resistance of the nethike embrane 70 is suitable The air velocity of ante-chamber 50 is reduced, while reducing frequency response resonance peak and distortion spike, improves listening quality.

Meanwhile, the setting of the brace rod 1117 can weaken the nethike embrane 70 and be resonated with the vibrating diaphragm 31, reduction Higher harmonic component, further improves listening quality.

It is preferred that, the groove 1115 be arranged at the preceding operatic tunes 51 and/or it is described lead in sound passage 53, in this implementation In example, the groove 1115 is arranged at the preceding operatic tunes 51, and located at the underface of the vibrating diaphragm 31.

The number and shape of the brace rod 1117 are unrestricted, it is preferred that the quantity of brace rod 1117 to be multiple, It can be arranged in parallel or arranged in a crossed manner, in the present embodiment, the quantity of brace rod 1117 is two, and is arranged in a crossed manner.

It is more highly preferred to, at least one brace rod 1117 passes through the center of the groove 1115.

It is preferred that, the nethike embrane 70 is fixed in the inner surface and the brace rod of the housing wall 111 by hot pressing mode 1117。

It is preferred that, the nethike embrane 70 is non-woven fabrics, nylon mesh grid, wool weaving net, wire netting and paper therein one Kind, the acoustic resistance of the nethike embrane 70 is 3~20ohms.

The loudspeaker enclosure 1 that the utility model is provided has the advantages that：

First, from the correspondence region of ante-chamber 50 housing wall 111 inner surface 1111 to the outer surface of the housing wall 111 1113 directions are recessed to form groove 1115, and in the affixed covering of inner surface 1111 groove 1115 of the housing wall 111 Nethike embrane 70, the vibration of vibrating diaphragm 31 promotes the air flow in ante-chamber 50 and produces sound wave, and air-flow and sound wave part are absorbed by nethike embrane, portion Branch passes through the nethike embrane 70 and reflected by the bottom land of the groove 1115 to be absorbed once by the nethike embrane 70 again, i.e., Absorbed twice by the nethike embrane 70, when the acoustic resistance of the nethike embrane 70 is suitable, the ante-chamber air velocity can be reduced, together When reduction frequency response resonance peak and distortion spike, improve listening quality.

2nd, the housing wall 111 further comprises the brace rod 1117 being arranged in the groove 1115, the brace rod 1117 setting can weaken the nethike embrane 70 and be resonated with the vibrating diaphragm 31, reduce higher harmonic component, further change Kind listening quality.

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 (9)

1. a kind of loudspeaker enclosure, it includes housing and the loudspeaker monomer being contained in the housing, the loudspeaker monomer bag The vibrating diaphragm for vibration sounding is included, the vibrating diaphragm is arranged at intervals to form the preceding operatic tunes with the housing, and the loudspeaker enclosure is further Sound passage is led including what the preceding operatic tunes was in communication with the outside, the preceding operatic tunes collectively forms described raise one's voice with the sound passage of leading The ante-chamber of device case, it is characterised in that the housing includes the housing wall of the correspondence preceding cavity region, the housing wall is included from institute The groove that the inner surface of housing wall is recessed to the outer surface direction of the housing wall is stated, the housing wall further comprises being arranged at Brace rod in the groove, the loudspeaker enclosure further comprises the inner surface for being fixed in the housing wall and covered described recessed The nethike embrane of groove, the nethike embrane is fixedly connected with the brace rod.

2. loudspeaker enclosure according to claim 1, it is characterised in that the brace rod be arranged in parallel.

3. loudspeaker enclosure according to claim 2, it is characterised in that the brace rod is arranged in a crossed manner.

4. the loudspeaker enclosure according to claim any one of 1-3, it is characterised in that at least one brace rod passes through described recessed The center of groove.

5. loudspeaker enclosure according to claim 1, it is characterised in that the groove is arranged at the preceding operatic tunes or/and institute State and lead in sound passage.

6. loudspeaker enclosure according to claim 5, it is characterised in that the groove is arranged at the underface of the vibrating diaphragm.

7. loudspeaker enclosure according to claim 5, it is characterised in that the nethike embrane is fixed in the shell by hot pressing mode The inner surface of body wall and the brace rod.

8. loudspeaker enclosure according to claim 5, it is characterised in that the nethike embrane is non-woven fabrics, nylon mesh grid, wool Mesh grid, wire netting and paper one kind therein.

9. loudspeaker enclosure according to claim 8, it is characterised in that the acoustic resistance of the nethike embrane is 3~20ohms.