CN213661840U

CN213661840U - Loudspeaker box

Info

Publication number: CN213661840U
Application number: CN202022684851.6U
Authority: CN
Inventors: 宋威; 肖波; 孔晨亮; 令狐荣林; 章统
Original assignee: AAC Technologies Pte Ltd
Current assignee: AAC Technologies Pte Ltd
Priority date: 2020-11-18
Filing date: 2020-11-18
Publication date: 2021-07-09
Anticipated expiration: 2030-11-18
Also published as: WO2022104905A1

Abstract

The utility model provides a loudspeaker box, which comprises a shell, a sounding monomer arranged in the shell and a covering component fixedly arranged outside the shell, wherein the shell is provided with a holding cavity and a through hole; the cover assembly comprises a breathable partition and a cover plate, the breathable partition covers the through hole and is fixed on the cover plate, the cover plate is connected with the shell and is arranged on one side of the breathable partition, which is far away from the through hole, a cover hole is formed in the cover plate, and gas in the rear cavity sequentially flows through the through hole, the breathable partition and the cover hole to flow out of the shell. The utility model provides a speaker box both can balance the atmospheric pressure between back chamber and the ante-chamber and can pour into again and inhale the sound granule to simple structure, manufacturing process are succinct, low in manufacturing cost.

Description

Loudspeaker box

[ technical field ] A method for producing a semiconductor device

The utility model relates to an acoustoelectric technology field especially relates to a loudspeaker box.

[ background of the invention ]

With the widespread use of smart mobile terminals, speaker boxes for playing sound are also used in large quantities. When the loudspeaker box works, a large amount of heat is generated inside the loudspeaker box, so that the air pressure of gas expansion in the back cavity is increased, the air pressure in the front cavity and the air pressure in the back cavity are unbalanced, the normal work of the loudspeaker box is influenced, in order to enable the loudspeaker box to work normally, leakage holes are required to be formed in a shell corresponding to the back cavity, and the ventilation isolating pieces of the leakage holes are configured. In addition, in order to obtain better audio effect for the loudspeaker box, the rear cavity part of the loudspeaker box is filled with sound absorption particles, and correspondingly, a powder filling hole for filling the sound absorption particles is also formed in the shell corresponding to the rear cavity, and a cover plate for sealing the powder filling hole is arranged. Therefore, the existing loudspeaker box needs to be provided with both a leakage hole and a powder filling hole, and is provided with a breathable isolating piece for sealing the leakage hole and a cover plate for sealing the powder filling hole, so that the structure is complex and the process flow is complicated. Referring to fig. 1, a casing 1 'of a speaker box 100' is respectively provided with a leakage hole 121 and a powder filling hole 122, and a ventilation spacer 31 'is disposed for the leakage hole 121 and a cover plate 32' is disposed for the powder filling hole 122.

Therefore, there is a need for a speaker box that can balance the air pressure between the rear chamber and the front chamber, can be filled with sound-absorbing particles, and has a simple structure.

[ Utility model ] content

An object of the utility model is to provide a loudspeaker box to solve current loudspeaker box and not only set up the technical problem who lets out the leakage hole but also will set up the powder hole of irritating.

The purpose of the utility model is to provide a technical scheme as follows: the loudspeaker box comprises a shell, a sound production unit arranged in the shell and a covering assembly fixedly arranged outside the shell, wherein the shell is provided with an accommodating cavity and a through hole, the sound production unit is fixedly arranged in the accommodating cavity and divides the accommodating cavity into a front cavity and a rear cavity, and the through hole is communicated with the rear cavity;

cover the subassembly including ventilative separator and apron, ventilative separator covers the through-hole just is fixed in on the apron, the apron with the casing is connected and is located keep away from of ventilative separator one side of through-hole, the apron is equipped with the lid hole, gas in the back chamber flows in proper order the through-hole ventilative separator with the lid hole flows outside the casing.

Furthermore, the covering assembly further comprises a first bonding piece, and the breathable isolating piece is fixed on the cover plate through the first bonding piece.

Further, the first bonding piece is provided with a first inner hole, and the aperture of the first inner hole is larger than or equal to that of the cover hole.

Furthermore, the cover assembly further comprises a second adhesive piece, and the cover plate is fixed on the shell through the second adhesive piece.

Furthermore, the second bonding piece is provided with a second inner hole, and the ventilation isolating piece and the first bonding piece are both accommodated in the second inner hole.

Further, the aperture of the second inner hole is larger than that of the through hole.

Further, the cover hole, the first inner hole, the second inner hole and the through hole are coaxially arranged.

Further, the breathable separator is any one of non-woven fabric, nylon woven mesh, wool woven mesh, metal mesh and tone tuning paper.

Further, the cover plate is a panel made of any one of polyethylene terephthalate, polycarbonate, polypropylene or acrylonitrile butadiene styrene.

Furthermore, a counter bore with the diameter larger than that of the through hole is arranged at the part, provided with the through hole, of the shell, the through hole extends from the bottom of the counter bore to be communicated with the accommodating cavity, and the breathable isolating piece and the cover plate are accommodated in the counter bore.

The beneficial effects of the utility model reside in that: through set up the through-hole that communicates with the back chamber on the casing that corresponds with the back chamber, when the atmospheric pressure of back chamber and front chamber is uneven, the back chamber can pass through the through-hole pressure release to guarantee the normal work of speaker box, and inhale the sound granule and can follow through-hole department and pour into the back chamber, so, through setting up a through-hole, both can balance the atmospheric pressure between back chamber and the front chamber and can pour into again and inhale the sound granule, reduced the quantity that sets up of through-hole, simplified the preparation technology. Cover the through-hole through setting up ventilative separator, impurity such as dust in the air can not get into the back chamber through the through-hole in, and the gas in the back chamber can see through ventilative separator and flow outside the casing. Through establishing the apron, can pass through the apron with ventilative separator and fix on the casing, through set up the apron hole on the apron, be favorable to the gas in the back chamber to flow through ventilative separator. Therefore, the utility model provides a speaker box both can balance the atmospheric pressure between back chamber and the ante-chamber and can pour into again and inhale the sound granule to simple structure, manufacturing process are succinct, low in manufacturing cost.

[ description of the drawings ]

Fig. 1 is a schematic structural diagram of a conventional speaker box;

fig. 2 is a schematic structural diagram of a speaker box according to an embodiment of the present invention;

FIG. 3 is a cross-sectional view taken along A-A of FIG. 2;

FIG. 4 is an enlarged view of a portion of FIG. 3 at B;

fig. 5 is an exploded view of a speaker box according to an embodiment of the present invention.

In the figure: 100. a speaker box; 1. a housing; 11. an accommodating cavity; 111. a front cavity; 112. a rear cavity; 12. a through hole; 13. a counter bore; 14. a front cover; 15. a rear cover; 2. a sounding monomer; 3. a cover assembly; 31. a breathable barrier; 32. a cover plate; 321. covering the hole; 33. a first adhesive member; 331. a first inner bore; 34. a second adhesive member; 341. a second bore.

[ detailed description ] embodiments

The present invention will be described in detail with reference to fig. 2 to 5.

Please refer to fig. 2 to 5, an embodiment of the present invention provides a speaker box 100, which includes a housing 1, a sound generating unit 2 installed in the housing 1 and a covering assembly 3 fixed outside the housing 1, wherein the housing 1 is provided with a receiving chamber 11 and a through hole 12, the sound generating unit 2 is fixed in the receiving chamber 11 and separates the receiving chamber 11 into a front chamber 111 and a rear chamber 112, the through hole 12 is communicated with the rear chamber 112 for filling sound absorbing particles into the rear chamber 112 and releasing the gas in the rear chamber 112 to balance the pressure between the rear chamber 112 and the front chamber 111, and the covering assembly 3 is installed at the through hole 12 and covers the through hole 12. Through set up on casing 1 that corresponds with rear cavity 112 intercommunication in order to be used for to the rear cavity 112 in pour into inhale the sound granule and be used for releasing the gas in rear cavity 112 with the through-hole 12 of the atmospheric pressure between balanced rear cavity 112 and front cavity 111, can pour into rear cavity 112 from through-hole 12 with inhaling the sound granule in order to improve speaker box 100's acoustic performance, moreover, when the heat that speaker monomer work produced leads to the gas expansion in rear cavity 112, when the atmospheric pressure of messenger front cavity 111 and rear cavity 112 is unbalanced, rear cavity 112 can carry out the pressure release through-hole 12 in order to balance the atmospheric pressure between rear cavity 112 and front cavity 111, and then guarantee speaker box 100 can normally work. Therefore, through the arrangement of the through hole 12, air pressure between the rear cavity 112 and the front cavity 111 can be balanced, filling of sound-absorbing particles can be achieved, the number of the through holes 12 is reduced, and the manufacturing process is simplified. Cover the subassembly 3 through the setting and cover through-hole 12, impurity such as dust in the air can not get into back chamber 112 through-hole 12 in addition, in order to prevent that the gas leakage volume of through-hole 12 self is too big, set up and cover subassembly 3 so that the gas in back chamber 112 flows outside casing 1 through covering subassembly 3 and adjust the gas leakage volume, therefore, cover subassembly 3 both can be dustproof can also breathe freely. Therefore, the utility model provides a speaker box 100 both can balance the atmospheric pressure between back chamber 112 and front chamber 111 and can pour into again and inhale the sound granule to simple structure, manufacturing process are succinct, low in manufacturing cost.

Referring to fig. 2, 4 and 5 again, the covering assembly 3 includes a ventilation spacer 31 and a cover plate 32, the ventilation spacer 31 covers the through hole 12 and is fixed on the cover plate 32, the cover plate 32 is connected to the housing 1 and is disposed on a side of the ventilation spacer 31 away from the through hole 12, the cover plate 32 is provided with a cover hole 321, and the gas in the rear cavity 112 flows out of the housing 1 through the through hole 12, the ventilation spacer 31 and the cover hole 321 in sequence. By covering the through hole 12 with the air-permeable partition 31, impurities such as dust in the air are blocked by the air-permeable partition 31 and cannot enter the rear chamber 112, and the gas in the rear chamber 112 can flow out of the housing 1 through the air-permeable partition 31. By providing the cover hole 321 on the cover plate 32, the air-permeable partition 31 is prevented from being completely covered by the cover plate 32, the rear cavity 112 cannot communicate with the outside, and the gas in the rear cavity 112 cannot flow out of the housing 1; in addition, the amount of materials required for manufacturing the cover plate 32 is reduced, and the manufacturing cost is reduced.

Referring to fig. 4 and 5 again, the covering assembly 3 further includes a first adhesive member 33, and the ventilation spacer 31 is fixed on the cover plate 32 by the first adhesive member 33. It will be appreciated that in other embodiments, the first adhesive member 33 is not provided, and the breathable separator 31 may be fixed to the cover plate 32 by other connecting means.

Preferably, the first adhesive member 33 has a first inner hole 331, and the diameter of the first inner hole 331 is greater than or equal to that of the cover hole 321. With this arrangement, the amount of gas leakage in the rear chamber 112 is increased, but it is also possible that the diameter of the first inner hole 331 is smaller than that of the cover hole 321 in other embodiments.

Referring to fig. 2, 4 and 5 again, the covering assembly 3 further includes a second adhesive member 34, and the cover plate 32 is fixed on the housing 1 by the second adhesive member 34. It will be appreciated that in other embodiments, the second adhesive member 34 is not provided, and the cover plate 32 may be connected to the housing 1 by other connecting means.

Preferably, the second adhesive member 34 has a second inner hole 341, and the air-permeable partition member 31 and the first adhesive member 33 are received in the second inner hole 341. The direction along the axial direction of the through hole 12 is defined as the thickness direction of the cover member 3, and in the present embodiment, the sum of the thicknesses of the first adhesive member 33 and the air-permeable spacer 31 is smaller than the thickness of the second adhesive member 34. It is understood that in other embodiments, the sum of the thicknesses of the first adhesive member 33 and the air-permeable partition member 31 may be the same as the thickness of the second adhesive member 34, so that the casing 1 at the through hole 12 has a certain supporting force for the air-permeable partition member 31.

Preferably, the second inner hole 341 has a larger aperture than the through-hole 12.

Preferably, the cap hole 321, the first inner hole 331, the second inner hole 341, and the through hole 12 are coaxially disposed. By this arrangement, the gas in the rear chamber 112 is facilitated to flow out of the housing 1.

Preferably, the air-permeable separator 31 is any one of a non-woven fabric, a nylon woven mesh, a wool woven mesh, a metal mesh, and a tuning paper. Non-woven fabrics, nylon woven mesh, wool woven mesh, metal mesh and tuning paper all have certain acoustic resistance characteristic, can be used for adjusting the gas leakage rate to satisfy speaker box 100's acoustic performance requirement. Although the present embodiment indicates that the air-permeable partition 31 may be any one of a nonwoven fabric, a nylon woven fabric, a wool woven fabric, a metal mesh, and a tuning paper, the air-permeable partition 31 is not limited to the above.

Preferably, the cover plate 32 is a panel including any one of polyethylene terephthalate (PET), Polycarbonate (PC), polypropylene (PP), or Acrylonitrile Butadiene Styrene (ABS). Although the cover plate 32 is made of any one of PET, PC, PP, and ABS in this embodiment, the material is not limited to the above materials, as long as the material has certain rigidity.

Referring to fig. 2, fig. 3 and fig. 5 again, a counter bore 13 with a larger diameter than the through hole 12 is disposed at the position of the housing 1 where the through hole 12 is disposed, the through hole 12 extends from the bottom of the counter bore 13 to communicate with the accommodating cavity 11, and the air-permeable isolating member 31 and the cover plate 32 are both accommodated in the counter bore 13. Through this kind of mode of setting, apron 32 can not bulge outside casing 1, both made things convenient for speaker box 100 to install on electronic equipment such as smart mobile phone, panel computer, elegant appearance again.

Preferably, the casing 1 includes a front cover 14 and a rear cover 15, the front cover 14 and the rear cover 15 enclose to form the accommodating cavity 11, the sound generating unit 2 and the front cover 14 enclose to form the front cavity 111, the sound generating unit 2, the front cover 14 and the rear cover 15 enclose to form the rear cavity 112, the through hole 12 penetrates through the rear cover 15, and the covering component 3 is fixedly arranged on the outer surface of the rear cover 15.

The above description is only an embodiment of the present invention, and it should be noted that, for those skilled in the art, modifications can be made without departing from the inventive concept, but these all fall into the protection scope of the present invention.

Claims

1. The loudspeaker box is characterized by comprising a shell, a sound production unit arranged in the shell and a covering assembly fixedly arranged outside the shell, wherein the shell is provided with an accommodating cavity and a through hole;

2. A loudspeaker enclosure according to claim 1, wherein the cover assembly further comprises a first adhesive member by which the breathable spacer is secured to the cover panel.

3. The speaker cabinet of claim 2, wherein the first adhesive has a first inner hole having an aperture greater than or equal to an aperture of the cover hole.

4. A loudspeaker enclosure according to claim 3, wherein the cover assembly further comprises a second adhesive by which the cover plate is secured to the housing.

5. The speaker cabinet of claim 4, wherein the second adhesive has a second bore, the breathable spacer and the first adhesive being received in the second bore.

6. A loudspeaker enclosure according to claim 5, wherein the second bore has a larger bore diameter than the through-hole.

7. A loudspeaker enclosure according to claim 5 or 6, wherein the cover aperture, the first bore, the second bore and the through-hole are coaxially arranged.

8. The speaker box according to any one of claims 1 to 6, wherein the air-permeable partition is any one of a nonwoven fabric, a nylon woven fabric, a wool woven fabric, a metal mesh, and a tuning paper.

9. A loudspeaker enclosure according to any one of claims 1 to 6, wherein the cover panel is a panel comprising any one of polyethylene terephthalate, polycarbonate, polypropylene or acrylonitrile butadiene styrene.

10. The loudspeaker box according to any one of claims 1 to 6, wherein a counter bore having a larger diameter than the through hole is formed at a portion of the housing where the through hole is formed, the through hole extends from a bottom of the counter bore to communicate with the accommodating chamber, and the breathable partition and the cover plate are accommodated in the counter bore.