CN210986335U - Loudspeaker box - Google Patents
Loudspeaker box Download PDFInfo
- Publication number
- CN210986335U CN210986335U CN201922182013.6U CN201922182013U CN210986335U CN 210986335 U CN210986335 U CN 210986335U CN 201922182013 U CN201922182013 U CN 201922182013U CN 210986335 U CN210986335 U CN 210986335U
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- Prior art keywords
- rear cavity
- lower cover
- sound
- upper cover
- wall
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Abstract
The utility model provides a loudspeaker box, a sound producing monomer divides an accommodating space into a front cavity and a rear cavity, a baffle wall is positioned in the rear cavity and divides the rear cavity into a first rear cavity and a second rear cavity; the lower cover is provided with a lower cover body and a convex wall, the lower cover body and the convex wall jointly form a sound guide groove, the sound guide groove simultaneously falls into the first rear cavity and the second rear cavity in the orthographic projection of the sound guide groove to the upper cover direction, and covers the blocking wall; the breathable isolating piece is attached to one side, close to the upper cover, of the convex wall and is connected with the blocking wall, and the breathable isolating piece and the lower cover body are arranged at intervals and cover one part of the sound guide groove; the air guide channel is formed by the air permeable isolating piece, the lower cover body, the convex wall and the blocking wall in a surrounding mode and used for communicating the first rear cavity with the second rear cavity; sound-absorbing particles are filled in the second rear cavity, and the sound-absorbing particles are packaged in the second rear cavity by the breathable partition piece; the conductive terminal penetrates through the blocking wall and extends to the outside of the loudspeaker box through the second rear cavity. Compared with the prior art, the utility model discloses a big and low frequency acoustic performance of irritating powder of speaker box is excellent.
Description
[ technical field ] A method for producing a semiconductor device
The utility model relates to an electroacoustic device especially relates to a speaker box.
[ background of the invention ]
With the advent of the mobile internet age, the number of smart mobile devices is increasing. Among the mobile devices, the mobile phone is undoubtedly the most common and portable mobile terminal device. At present, the functions of a mobile phone are very diverse, one of which is a high-quality music function, and thus, a speaker box for playing sound is widely applied to the current smart mobile devices.
The loudspeaker box in the related art comprises a lower cover, an upper cover assembled with the lower cover to form an accommodating space, a sounding single body accommodated in the accommodating space, a ventilating isolation assembly extending from the upper cover to the lower cover, and a conductive terminal; the sounding single body and the upper cover enclose a front cavity, and the sounding single body, the upper cover and the lower cover together enclose a rear cavity; the rear cavity is divided into a first rear cavity and a second rear cavity which are communicated with each other by the breathable isolation assembly, the sounding monomer is positioned in the first rear cavity, sound-absorbing particles are filled in the second rear cavity, and the sound-absorbing particles are packaged in the second rear cavity by the breathable isolation assembly, so that the low-frequency acoustic performance of the loudspeaker box is improved; the conductive terminal is electrically connected with the sounding monomer and extends to the outside of the loudspeaker box from the rear cavity.
However, in the speaker box of the related art, the back second rear chamber is to keeping away from the long and narrow structure that the sound production monomer direction extends, when conductive terminal extends to the outside by the sound production monomer, can not directly run through ventilative isolation subassembly extends, leads to ventilative isolation to hinder the piece to become invalid easily and make to inhale the sound granule and reveal from the second rear chamber and get into first rear chamber, influence acoustic performance. Therefore, the second rear cavity is required to form an avoiding space for extending the conductive terminal, but the space of the second rear cavity is required to be occupied by the avoiding space, so that the volume of the second rear cavity is reduced, and the low-frequency acoustic performance of the loudspeaker box is reduced.
Therefore, it is necessary to provide a new speaker box to solve the above technical problems.
[ Utility model ] content
An object of the utility model is to provide a irritate the powder bulky, audio performance is the speaker box that the low frequency performance is good especially.
In order to achieve the above object, the present invention provides a speaker box, which comprises a lower cover, an upper cover covering the lower cover and enclosing together to form an accommodating space, a sounding unit accommodated in the accommodating space, a breathable partition, a barrier wall formed in the accommodating space, and a conductive terminal electrically connected to the sounding unit; the sound production unit divides the accommodating space into a front cavity and a rear cavity, the baffle wall is positioned in the rear cavity and divides the rear cavity into a first rear cavity and a second rear cavity, the sound production unit is positioned in the first rear cavity, the lower cover comprises a lower cover body and a ring-shaped convex wall, the lower cover body covers the upper cover and jointly surrounds the accommodating space, the annular convex wall extends from the lower cover body to the accommodating space, the lower cover body and the convex wall jointly surround a sound guide groove, the sound guide groove is communicated with the second rear cavity, and the orthographic projection of the sound guide groove to the upper cover direction simultaneously falls into the first rear cavity and the second rear cavity and covers the baffle wall; the breathable isolating piece is attached to one side, close to the upper cover, of the convex wall and connected with the blocking wall, and the breathable isolating piece and the lower cover body are arranged at intervals and cover one part of the sound guide groove; the air guide channel is formed by the air permeable isolating piece, the lower cover body, the convex wall and the blocking wall in a surrounding mode, the air guide channel is used for communicating the first rear cavity with the second rear cavity, and air flow in the first rear cavity bypasses the blocking wall, then passes through the air guide channel and enters the second rear cavity through the air permeable isolating piece; sound-absorbing particles are filled in the second rear cavity, and the sound-absorbing particles are packaged in the second rear cavity by the breathable partition; the conductive terminal penetrates through the blocking wall and extends to the outside of the loudspeaker box through the second rear cavity.
Preferably, the blocking walls include a first blocking wall extending from the lower cover to the upper cover and a second blocking wall extending from the upper cover to the lower cover, the first blocking wall abuts against the second blocking wall, and the conductive terminal is clamped between the first blocking wall and the second blocking wall.
Preferably, the upper cover is provided with a positioning column protruding towards the lower cover, the conductive terminal is provided with a positioning hole, and the conductive terminal is attached to the upper cover to extend and enable the positioning column to be clamped in the positioning hole.
Preferably, the conductive terminal includes a first section penetrating through the blocking wall, a second section bent and extended from the first section toward the upper cover, and a third section bent and extended from the second section and attached to one side of the upper cover close to the lower cover, the first section is electrically connected to the sounding monomer, the third section penetrates through the upper cover and extends to the outside, and the positioning hole is disposed in the third section.
Preferably, the lower cover body and the convex wall are integrally formed through a die inclined top forming process.
Preferably, the upper cover is provided with a powder tank hole penetrating through the upper cover and a sealing cover covering the powder tank hole, and the powder tank hole is communicated with the second rear cavity.
Compared with the prior art, the loudspeaker box divides the rear cavity into a first rear cavity and a second rear cavity by arranging the baffle wall, the lower cover is arranged to penetrate through the lower cover and is sequentially communicated with the first groove, the communicating channel and the second groove, the first groove is communicated with the first rear cavity, and the second groove is communicated with the second rear cavity; the breathable isolating piece is attached to the inner side of the lower cover, completely covers the second groove and enables the second rear cavity to be communicated with the second groove through the breathable isolating piece, and therefore the breathable isolating piece, the blocking wall and the upper cover together encapsulate the sound absorption particles to form a virtual sound cavity; the conductive terminal penetrates through the blocking wall and extends to the outside through the second rear cavity. In the structure, ventilative separator, first recess, intercommunication passageway and second recess enclose the air guide channel structure who has formed first back chamber of intercommunication and second back chamber altogether, have realized low frequency sound production performance, need not to set up ventilative separator on keeping off the wall for conductive terminal can run through and keep off the wall after the second back chamber extends to the outside, need not form at the space of second back chamber promptly and dodge the space and let, make the very big degree of volume of second back chamber remains to establish more sound particles of inhaling in order to fill out, thereby effectively improved the low frequency acoustic performance of speaker box.
[ description of the drawings ]
Fig. 1 is a schematic perspective view of a speaker box according to the present invention;
FIG. 2 is an exploded view of the partial perspective structure of FIG. 1;
FIG. 3 is a sectional view taken along line A-A of FIG. 1;
fig. 4 is an assembly view of the three-dimensional structure of the upper cover and the first blocking wall of the speaker box of the present invention.
[ detailed description ] embodiments
The present invention will be further explained with reference to the drawings and the embodiments.
Referring to fig. 1-4, the present invention provides a speaker box 100, which includes a lower cover 1, an upper cover 2, a sound generating unit 3, a baffle wall 4, a conductive terminal 5 and a ventilation spacer 6.
The lower cover 1 and the upper cover 2 are assembled together to form an accommodating space 7, and in the embodiment, the upper cover 2 and the lower cover 1 are assembled by ultrasonic welding.
The lower cover 1 comprises a lower cover body 11 covering the upper cover 2 and enclosing the accommodating space 7 together, and a convex wall 12 extending from the lower cover body 11 to the accommodating space 7. The convex wall 12 is annular.
In this embodiment, the lower cover body 11 and the convex wall 12 are integrally formed by a die lifter molding process, so that the assembly process is saved, and the production efficiency is improved.
The upper cover 2 is provided with a powder tank hole 21 penetrating through the upper cover and a sealing cover 22 covering the powder tank hole 21.
The sounding single body 3 is accommodated in the accommodating space 7, and a front cavity 71 is enclosed by the sounding single body 3 and the upper cover 2 and used for sounding; the sounding monomer 3, the lower cover 1 and the upper cover 2 jointly enclose a rear cavity 72 for improving low-frequency acoustic performance.
The retaining wall 4 is located within the rear cavity 72. In the present embodiment, the blocking wall 4 connects the upper cover 2 and the lower cover 1, and divides the rear chamber 72 into a first rear chamber 721 and a second rear chamber 722, and the sound generating unit 3 is located in the first rear chamber 721.
Specifically, the powder tank hole 21 is communicated with the second rear cavity 722, and the sound-absorbing particles are filled into the second rear cavity 722 through the powder tank hole 21 and then are covered and sealed through the sealing cover 22.
In the present embodiment, the blocking wall 4 includes a first blocking wall 41 extending from the lower cover 1 toward the upper cover 2, and a second blocking wall 42 extending from the upper cover 2 toward the lower cover 1, and the first blocking wall 41 is in contact with the second blocking wall 42. Of course, the blocking wall 4 may be a unitary structure.
The conductive terminal 5 is electrically connected with the sounding monomer 3.
In the present embodiment, the lower cover body 11 and the convex wall 12 together define a sound guide groove 13. The sound guide groove 13 communicates with the second rear chamber 722. And the orthographic projection of the sound guide groove to the direction of the upper cover 2 falls into the first rear cavity 721 and the second rear cavity 722 at the same time, and covers the baffle wall 4;
the air-permeable isolating piece 6 is attached to one side of the convex wall 12 close to the upper cover 2 and is connected with the blocking wall 4. The air-permeable isolating piece 6 and the lower cover body 11 are arranged at intervals and cover a part of the sound guide groove. The second rear cavity 722 is filled with sound-absorbing particles (not shown), and the air-permeable partition encapsulates the sound-absorbing particles in the second rear cavity to form a virtual sound cavity (i.e., a D-Bass sound cavity) for improving low-frequency acoustic performance.
The air-permeable partition 6, the lower cover body 11, the convex wall 12 and the blocking wall 4 together enclose an air-guiding channel which communicates the first rear cavity 721 with the second rear cavity 722. The air flow in the first rear chamber 721 bypasses the baffle wall 4 and then passes through the air guide channel and enters the second rear chamber 722 through the air permeable partition 6 to achieve low frequency acoustic performance, as shown by the arrows in fig. 3.
In this embodiment, because the air guide channel structure extends along the length direction of the second rear cavity 722, the sound-absorbing particles far from the first rear cavity in the second rear cavity 722 can fully circulate with the air guide channel, so that the powder filling volume is large, that is, the function of improving the low-frequency acoustic performance is fully exerted, and the low-frequency acoustic performance of the speaker box 100 is better.
The conductive terminal 5 penetrates through the blocking wall 4. The conductive terminal 5 extends to the outside of the speaker box 100 through the second rear cavity 722 for connecting an external electrical signal. Specifically, the conductive terminal 5 includes a first section 51 penetrating through the blocking wall 4, a second section 52 bent and extended from the first section 51 toward the upper cover 2, and a third section 53 bent and extended from the second section 52 and attached to one side of the upper cover 2 close to the lower cover 1. Wherein the first segment 51 is electrically connected with the sounding monomer 3. The third segment 53 penetrates the upper cover 2 and extends to the outside.
Because the air-permeable isolating piece 6 for realizing the air communication between the first rear cavity 721 and the second rear cavity 722 is arranged on the lower cover 1, the blocking wall 4 is only used for separating the rear cavity 72 to form the first rear cavity 721 and the second rear cavity 722, and an air-permeable isolating structure is not needed to be arranged for realizing the communication between the first rear cavity 721 and the second rear cavity 722, so that the conductive terminal 5 can directly penetrate through the blocking wall 4 to extend into the second rear cavity 722 and then extend to the outside, and the stability of the air-permeable isolating piece 6 cannot be influenced. Meanwhile, due to the structural arrangement, the conductive terminal 5 forms an avoiding space to give way without the space of the second rear cavity 722, so that the volume of the second rear cavity 722 is reserved to a great extent to fill more sound-absorbing particles, and the low-frequency acoustic performance of the loudspeaker box 100 is effectively improved.
Specifically, in the present embodiment, the conductive terminal 5 is sandwiched between the first blocking wall 41 and the second blocking wall 42.
Preferably, the upper cover 2 is further provided with a positioning column 23 protruding towards the lower cover 1, the conductive terminal 5 is provided with a positioning hole 50, and the conductive terminal 5 is attached to the upper cover 2 to extend and enable the positioning column 23 to be clamped in the positioning hole 50. Specifically, the positioning hole 50 is disposed in the third section 53. The structure forms positioning and improves the stability of the conductive terminal.
Compared with the prior art, the loudspeaker box divides the rear cavity into a first rear cavity and a second rear cavity by arranging the baffle wall, the lower cover is arranged to penetrate through the lower cover and is sequentially communicated with the first groove, the communicating channel and the second groove, the first groove is communicated with the first rear cavity, and the second groove is communicated with the second rear cavity; the breathable isolating piece is attached to the inner side of the lower cover, completely covers the second groove and enables the second rear cavity to be communicated with the second groove through the breathable isolating piece, and therefore the breathable isolating piece, the blocking wall and the upper cover together encapsulate the sound absorption particles to form a virtual sound cavity; the conductive terminal penetrates through the blocking wall and extends to the outside through the second rear cavity. In the structure, ventilative separator, first recess, intercommunication passageway and second recess enclose the air guide channel structure who has formed first back chamber of intercommunication and second back chamber altogether, have realized low frequency sound production performance, need not to set up ventilative separator on keeping off the wall for conductive terminal can run through and keep off the wall after the second back chamber extends to the outside, need not form at the space of second back chamber promptly and dodge the space and let, make the very big degree of volume of second back chamber remains to establish more sound particles of inhaling in order to fill out, thereby effectively improved the low frequency acoustic performance of speaker box.
The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.
Claims (6)
1. A loudspeaker box comprises a lower cover, an upper cover, a sound-producing single body, a breathable isolating piece, a baffle wall and a conductive terminal, wherein the upper cover is covered on the lower cover and encloses an accommodating space together with the lower cover; the sound production monomer will accommodating space separates into antechamber and back chamber, keep off the wall and be located in the back chamber and with the back chamber is separated for first back chamber and second back chamber, the sound production monomer is located first back chamber, its characterized in that:
the lower cover comprises a lower cover body and a ring-shaped convex wall, the lower cover body covers the upper cover and jointly surrounds the upper cover to form the accommodating space, the lower cover body and the convex wall jointly surround a sound guide groove, the sound guide groove is communicated with the second rear cavity, and the sound guide groove simultaneously falls into the first rear cavity and the second rear cavity in the orthographic projection of the sound guide groove to the direction of the upper cover and covers the blocking wall;
the breathable isolating piece is attached to one side, close to the upper cover, of the convex wall and connected with the blocking wall, and the breathable isolating piece and the lower cover body are arranged at intervals and cover one part of the sound guide groove; the air guide channel is formed by the air permeable isolating piece, the lower cover body, the convex wall and the blocking wall in a surrounding mode, the air guide channel is used for communicating the first rear cavity with the second rear cavity, and air flow in the first rear cavity bypasses the blocking wall, then passes through the air guide channel and enters the second rear cavity through the air permeable isolating piece; sound-absorbing particles are filled in the second rear cavity, and the sound-absorbing particles are packaged in the second rear cavity by the breathable partition;
the conductive terminal penetrates through the blocking wall and extends to the outside of the loudspeaker box through the second rear cavity.
2. The speaker box of claim 1, wherein the blocking walls include a first blocking wall extending from the lower cover to the upper cover and a second blocking wall extending from the upper cover to the lower cover, the first blocking wall abuts against the second blocking wall, and the conductive terminal is sandwiched between the first blocking wall and the second blocking wall.
3. The speaker box as claimed in claim 1, wherein the top cover has a positioning post protruding toward the bottom cover, the conductive terminal has a positioning hole, and the conductive terminal is attached to the top cover and extends to allow the positioning post to be engaged with the positioning hole.
4. The speaker box according to claim 3, wherein the conductive terminal includes a first section penetrating the blocking wall, a second section bent and extended from the first section toward the upper cover, and a third section bent and extended from the second section and attached to one side of the upper cover close to the lower cover, the first section is electrically connected to the sound generating unit, the third section penetrates the upper cover and extends to the outside, and the positioning hole is disposed in the third section.
5. The speaker cabinet of claim 1, wherein the lower cover body and the convex wall are integrally formed by a die lifter molding process.
6. The speaker cabinet as claimed in claim 1, wherein the upper cover is provided with a powder tank hole penetrating therethrough and a cover lid covering the powder tank hole, the powder tank hole communicating with the second rear chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922182013.6U CN210986335U (en) | 2019-12-07 | 2019-12-07 | Loudspeaker box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922182013.6U CN210986335U (en) | 2019-12-07 | 2019-12-07 | Loudspeaker box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210986335U true CN210986335U (en) | 2020-07-10 |
Family
ID=71416025
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922182013.6U Expired - Fee Related CN210986335U (en) | 2019-12-07 | 2019-12-07 | Loudspeaker box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210986335U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112261187A (en) * | 2020-10-23 | 2021-01-22 | 维沃移动通信有限公司 | Electronic device |
| CN114501258A (en) * | 2020-10-28 | 2022-05-13 | 华为技术有限公司 | Loudspeaker module and electronic equipment |
| CN114554372A (en) * | 2022-03-21 | 2022-05-27 | 歌尔股份有限公司 | Sound production device and electronic device |
-
2019
- 2019-12-07 CN CN201922182013.6U patent/CN210986335U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112261187A (en) * | 2020-10-23 | 2021-01-22 | 维沃移动通信有限公司 | Electronic device |
| CN114501258A (en) * | 2020-10-28 | 2022-05-13 | 华为技术有限公司 | Loudspeaker module and electronic equipment |
| CN114554372A (en) * | 2022-03-21 | 2022-05-27 | 歌尔股份有限公司 | Sound production device and electronic device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200710 Termination date: 20211207 |