CN208638692U

CN208638692U - Loudspeaker enclosure

Info

Publication number: CN208638692U
Application number: CN201821302257.2U
Authority: CN
Inventors: 印兆宇
Original assignee: AAC Technologies Pte Ltd
Current assignee: AAC Technologies Pte Ltd
Priority date: 2018-08-13
Filing date: 2018-08-13
Publication date: 2019-03-22
Anticipated expiration: 2028-08-13

Abstract

The utility model provides a kind of loudspeaker enclosure comprising upper cover is covered on upper cover and surrounds the lower cover of accommodating space, the first retaining wall, the second retaining wall, breathable barrier and the sounding monomer being contained in accommodating space jointly；Sounding monomer and upper cover surround ante-chamber, sounding monomer and upper cover and lower cover surrounds back cavity jointly；Wall is collectively formed in the second retaining wall for being connected to upper cover and the first retaining wall for being connected to lower cover, and back cavity is divided into the first back cavity and the second back cavity by wall；First retaining wall is made of first segment and second segment；Second segment is set there are two spaced through-hole section, and the first back cavity is connected to by two through-hole sections with the second back cavity, and breathable barrier is attached at the first retaining wall and two through-hole sections are completely covered；Sounding monomer is located at the first back cavity, fills sound-absorbing particle in the second back cavity, sound-absorbing particle is packaged in the second back cavity by breathable barrier.Compared with the relevant technologies, the loudspeaker enclosure frequency acoustic performance of the utility model is more excellent and good reliability.

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 upper cover, be covered on the upper cover and surround accommodating space lower cover and It is contained in the intracorporal sounding monomer of the shell；The sounding monomer and the upper cover surround ante-chamber, the sounding monomer with it is described Upper cover and the lower cover surround back cavity jointly；The upper cover extends to form wall to the lower cover direction, and the wall will be described Back cavity is separated into mutual the first back cavity of air communication and the second back cavity, and the sounding monomer is located at first back cavity, and described Sound-absorbing particle is filled in two back cavities, the end cap close to the lower cover of the wall sets breathable barrier, the ventilative isolation The sound-absorbing particle is packaged in second back cavity by part, described to form the virtual operatic tunes (space DBASS) described in improvement The frequency acoustic performance of loudspeaker enclosure.

However, because mounting structure needs, the lower cover is not usually a plane in the loudspeaker enclosure of the relevant technologies, But there are rugged steps, and breathable barrier needs to keep at least gap of 0.3mm apart from the lower cover, to prevent Shell shake occurs for breathable barrier and the lower cover, i.e., the space between the gap cannot be utilized by the virtual operatic tunes, and being equivalent to reduces The volume of second back cavity；In addition, the wall is used close to the hot melt barricade that one end of the lower cover also needs to be arranged 0.7mm width With the fixed breathable barrier of hot melt, i.e., the volume of a part of virtual operatic tunes is occupied again.To the loudspeaker of the relevant technologies Box structure cannot effectively make full use of back cavity volume, limit the improvement of its frequency acoustic performance.

Therefore, it is really necessary to provide a kind of new loudspeaker enclosure solution above-mentioned technical problem.

[utility model content]

Excellent and good reliability the loudspeaker enclosure the purpose of this utility model is to provide a kind of frequency acoustic performance.

In order to achieve the above object, the utility model provides a kind of loudspeaker enclosure comprising upper cover is covered on described It covers and surrounds jointly the lower cover of accommodating space, accommodate the sounding monomer being fixed in the accommodating space, from the upper cover to institute State the first retaining wall that lower cover direction extends to form, the second retaining wall from the lower cover to the upper cover direction that extend to form from and thoroughly Air bound off member；The sounding monomer and the upper cover surround ante-chamber, and the sounding monomer and the upper cover and the lower cover are common Surround back cavity；Second retaining wall is connected to the upper cover, and first retaining wall is connected to the lower cover and the first gear Wall is collectively formed in wall and second retaining wall, and the back cavity is divided into the first back cavity and the second back cavity by the wall；It is described First retaining wall is formed by first segment and from the second segment that first segment bending extends；The second segment, which is equipped with, to be run through thereon At least two are spaced apart from each other the through-hole section of setting, and two through-hole sections connect first back cavity and second back cavity Logical, the breathable barrier, which is sticked, to be fixed on first retaining wall and two through-hole sections is completely covered；The sounding monomer Positioned at first back cavity, sound-absorbing particle is filled in second back cavity, the breathable barrier encapsulates the sound-absorbing particle In in second back cavity.

Preferably, the breathable barrier includes two and is individually fixed in the second segment, and two it is described it is ventilative every Off member is covered on two through-hole sections respectively.

Preferably, two breathable barriers are by the one-pass molding of slipper block loose core Shooting Technique in the second segment.

Preferably, the breathable barrier is fixed on the side far from second back cavity of first retaining wall.

Preferably, the powder filling hole through thereon is covered under described, the powder filling hole is connected to second back cavity.

Preferably, second retaining wall is described by third section and the 4th Duan Zucheng extended from third section bending The position that lower cover corresponds to the second segment is equipped with welding bar, and the second segment is oppositely arranged with described 4th section, the second segment It is connected to the welding bar and fixing seal is formed by ultrasonic bonding.

Compared with the relevant technologies, the loudspeaker enclosure of the utility model includes extending shape from the upper cover to the lower cover direction At the first retaining wall and the second retaining wall from the lower cover to the upper cover direction that extended to form from, second retaining wall be connected to The upper cover, first retaining wall is connected to the lower cover and first retaining wall is collectively formed with second retaining wall and encloses The back cavity is divided into the first back cavity and the second back cavity using the wall by wall, the wall at least open up there are two with it is described The through-hole section that first back cavity is connected to second back cavity, the breathable barrier lid set two through-hole sections；After described second Intracavitary filling sound-absorbing particle forms the virtual operatic tunes of DBASS, to be effectively improved the frequency acoustic performance of the loudspeaker enclosure.It is above-mentioned In structure, because first retaining wall and second retaining wall that form the wall are respectively arranged at upper cover and lower cover, the structure The breathable barrier can be made to be molded one-pass molding in first retaining wall by slipper block loose core by the resigning of the second retaining wall, saved Hot melt barrier wall structure has been removed, the volume of the second back cavity as the virtual operatic tunes is further increased, so that the loudspeaker The frequency acoustic performance of case is more excellent；Meanwhile the through-hole section on the wall can be adjusted by adjusting injection mold Number, so that multiple breathable barriers of setting, further improve the compliance of the back cavity, further improve institute State the frequency acoustic performance of 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 part isometric structural exploded view at another visual angle of the utility model loudspeaker enclosure；

Fig. 4 is loudspeaker enclosure in Fig. 1 along the sectional view of line A-A；

Fig. 5 is loudspeaker enclosure in Fig. 1 along the sectional view of line B-B；

Fig. 6 is the stereochemical structure sectional view of the utility model loudspeaker enclosure.

[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. 1-2, the utility model provides a kind of loudspeaker enclosure 100, including shell 1, sounding monomer 2 and Breathable barrier 3.

The shell 1 has accommodating space 10.The shell 1 can be structure as a whole, or separate structure, this implementation In mode, the shell 1 includes upper cover 11, is covered on the upper cover 11 and surrounds the lower cover 12 of accommodating space 10 jointly.

The shell 1 is equipped in powder filling hole 121 thereon, present embodiment, and the powder filling hole 121 is under described Lid 12 is arranged.

Fig. 3-6 is please referred to, the receiving of sounding monomer 2 is fixed in the accommodating space 10 of the shell 1, and And the accommodating space 10 is separated into ante-chamber 101 and back cavity 102 by the sounding monomer 2.

Specifically, the sounding monomer 2 surrounds the ante-chamber 101 with the upper cover 11, it to be used for side sounding；The sounding list Body 2 and the upper cover 11 and the lower cover 12 surround the back cavity 102 jointly, for improving frequency acoustic performance.

Certainly, it should be noted that in present embodiment, the ante-chamber 101 includes the preceding operatic tunes 1011 and leads sound channel 1012.The preceding operatic tunes 1011 is formed between the sounding monomer 2 and the upper cover 11, that is, is right against the sounding monomer 2； The sound channel 1012 of leading is formed in the upper cover 11, is a pipeline configuration, the sound channel 1012 of leading is by the preceding operatic tunes 1011 are in communication with the outside, and form side vocal structure.

The loudspeaker enclosure 100 further includes the first retaining wall extended to form from the upper cover 11 to 12 direction of lower cover 111, the second retaining wall 122 extended to form from the lower cover 12 to 11 direction of upper cover；Second retaining wall 122 is connected to institute State upper cover 11, first retaining wall 111 is connected to the lower cover 12 and first retaining wall 111 and second retaining wall 122 Wall 13 is collectively formed, the wall 13 is in step-like.

The back cavity 102 is divided into the first back cavity 1021 and the second back cavity 1022 by the wall 13.The wall 13 is set There is the through-hole section 130 through thereon, first back cavity 1021 is connected to second back cavity 1022 by the through-hole section 130.

Specifically, first retaining wall 111 bends extend second by first segment 1111 and from the first segment 1111 Section 1112.Second retaining wall 122 part opposite with the second segment 1112 is connected to the upper cover 11, the first segment 1111 and the second segment 1112 be bonded respectively with second retaining wall 122.

Preferably, second retaining wall 122 bends the extend the 4th by third section 1221 and from the third section 1221 Section 1222 forms；The third section 1221 part opposite with the second segment 1112 is connected to the upper cover 11, and described first Section 1111 is bonded with the third section 1221, and the second segment 1112 is bonded with described 4th section 1222.

In present embodiment, the position of the corresponding second segment 1112 of the lower cover 12 is equipped with welding bar 123, and described second Section 1112 is oppositely arranged with described 4th section 1222, and the second segment 1112 is connected to the welding bar 123 and passes through ultrasonic wave Welding forms fixing seal, so that the good airproof performance of the back cavity 102, so that 100 acoustical behavior of the loudspeaker enclosure is excellent.

Described two section 1112 is equipped with the through-hole section 130 that setting is spaced apart from each other through at least two thereon, and two described logical First back cavity 1021 is connected to by hole portion 130 with second back cavity 1022, and the breathable barrier 3, which is sticked, is fixed on institute It states the first retaining wall 111 and two through-hole sections 130 is completely covered.

In present embodiment, three section of 1221 part and the through-hole section 130 are opposite, and the breathable barrier 3 includes Two and it is individually fixed in described two section 1112, and two breathable barriers 3 are covered on two through-hole sections respectively 130。

First back cavity 1021 is fixed in the receiving of sounding monomer 2, fills sound-absorbing in second back cavity 1022 The sound-absorbing particle is packaged in second back cavity 1022 by grain (not shown), the breathable barrier 3.Present embodiment In, the powder filling hole 121 is connected to second back cavity 1022, by second back cavity 1022 by the sound-absorbing granule filling In in second back cavity 1022.Certainly, the powder filling hole 121 needs to be sealed after powder filling encapsulation, for example is set by lid PET lid (not shown).

The breathable barrier 3, which is sticked, to be fixed on the wall 13 and two through-hole sections 130 is completely covered, i.e., described Second back cavity 1022 forms air communication by breathable barrier 3 with first back cavity 1021.The breathable barrier 3 is by institute It states sound-absorbing particle to be packaged in second back cavity 1022, to form the virtual operatic tunes of DBASS, is effectively improved the loudspeaker enclosure 100 frequency acoustic performance.

In present embodiment, the breathable barrier 3 is by the one-pass molding of slipper block loose core Shooting Technique in the second segment 1112.Because the wall 13 is including being formed in first retaining wall 111 of the upper cover 11 and being formed in the institute of the lower cover 12 The second retaining wall 122 is stated, which is that the fixed breathable barrier 3 of slipper block loose core Shooting Technique provides condition.For example, working as institute State through-hole section 130 and be opened in the second segment 1112, the injection molding of breathable barrier 3 when the second segment 1112, sliding block and Rear mold collision, which is realized, is molded the breathable barrier 3, is exited when sliding block is retreated by the position of second retaining wall 122, real Present inside cavity side is molded the purpose of the breathable barrier 3.The molding mode makes the not only stability of breathable barrier 3 It is good, and volume production reliability and yield are higher.Meanwhile saving the hot melt barricade volume for occupying second back cavity 1022, i.e. phase When further improving the all-bottom sound of the loudspeaker enclosure 100 in the effective use space for increasing second back cavity 1022 Learn performance.

More preferably, the wall 13 is molding by slipper block loose core Shooting Technique.Can according to cavity environment, by adjusting The structure of injection mold so that the wall 13 is in the form of for multiple steps, each step surface be molded one it is described it is ventilative every Off member 3, to realize that a sliding block injection mold is molded multiple breathable barriers 3 simultaneously, so that the loudspeaker enclosure 100 Compliance it is more excellent so that the frequency acoustic performance of the loudspeaker enclosure 100 is more excellent.

Above structure is arranged because of the breathable barrier 3 and non-parallel to the lower cover 12, and there is no need to occupy described the For the volume of two back cavities 1022 as the clearance space for reserving the breathable barrier 3 and the lower cover 12, bigger improves institute The space utilization rate for stating the second back cavity 1022 further improves the frequency acoustic performance of the loudspeaker enclosure.

More preferably, the breathable barrier 3 is fixed on one far from second back cavity 1022 of first retaining wall 111 Side, the structure is for the purposes of further increasing the volume of second back cavity 1022, to improve the low frequency of the loudspeaker enclosure 100 Acoustical behavior.

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

1. a kind of loudspeaker enclosure comprising upper cover, the lower cover for being covered on the upper cover and surrounding accommodating space jointly and receiving The sounding monomer being fixed in the accommodating space；The sounding monomer and the upper cover surround ante-chamber, the sounding monomer with The upper cover and the lower cover surround back cavity jointly, which is characterized in that the loudspeaker enclosure further includes from the upper cover to described The first retaining wall that lower cover direction extends to form, the second retaining wall extended to form from the lower cover to the upper cover direction and ventilative Separator；Second retaining wall is connected to the upper cover, and first retaining wall is connected to the lower cover and first retaining wall Wall is collectively formed with second retaining wall, the back cavity is divided into the first back cavity and the second back cavity by the wall；Described One retaining wall is formed by first segment and from the second segment that first segment bending extends；The second segment, which is equipped with, to be run through thereon extremely Few two are spaced apart from each other the through-hole section of setting, and first back cavity is connected to by two through-hole sections with second back cavity, The breathable barrier, which is sticked, to be fixed on first retaining wall and two through-hole sections is completely covered；The sounding monomer is located at First back cavity, second back cavity is interior to fill sound-absorbing particle, and the sound-absorbing particle is packaged in institute by the breathable barrier It states in the second back cavity.

2. loudspeaker enclosure according to claim 1, which is characterized in that the breathable barrier includes two and fixes respectively In the second segment, and two breathable barriers are covered on two through-hole sections respectively.

3. loudspeaker enclosure according to claim 2, which is characterized in that two breathable barriers are infused by slipper block loose core Technique one-pass molding is moulded in the second segment.

4. loudspeaker enclosure according to claim 2, which is characterized in that the breathable barrier is fixed on first retaining wall Far from second back cavity side.

5. loudspeaker enclosure according to claim 1, which is characterized in that be covered with the powder filling hole through thereon, institute under described Powder filling hole is stated to be connected to second back cavity.

6. loudspeaker enclosure according to claim 1, which is characterized in that second retaining wall is by third section and from described Three sections bending extend the 4th Duan Zucheng, the lower cover correspond to the second segment position be equipped with welding bar, the second segment and Described 4th section is oppositely arranged, and the second segment is connected to the welding bar and forms fixing seal by ultrasonic bonding.