CN112153501B - Loudspeaker box - Google Patents
Loudspeaker box Download PDFInfo
- Publication number
- CN112153501B CN112153501B CN202010879350.5A CN202010879350A CN112153501B CN 112153501 B CN112153501 B CN 112153501B CN 202010879350 A CN202010879350 A CN 202010879350A CN 112153501 B CN112153501 B CN 112153501B
- Authority
- CN
- China
- Prior art keywords
- front cover
- bracket
- rear cover
- sounding
- cover
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 239000000178 monomer Substances 0.000 claims abstract description 37
- 230000000149 penetrating effect Effects 0.000 claims abstract description 7
- 125000006850 spacer group Chemical group 0.000 claims description 23
- 239000007769 metal material Substances 0.000 claims description 9
- 239000004033 plastic Substances 0.000 claims description 8
- 239000000843 powder Substances 0.000 claims description 8
- 239000011358 absorbing material Substances 0.000 claims description 5
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 238000002955 isolation Methods 0.000 claims description 2
- 230000004888 barrier function Effects 0.000 claims 9
- 230000002093 peripheral effect Effects 0.000 claims 2
- 238000007789 sealing Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 description 10
- 238000009423 ventilation Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000005236 sound signal Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
Abstract
The invention provides a loudspeaker box, which comprises a shell and a sounding monomer fixedly accommodated in the shell, wherein the sounding monomer and the shell jointly enclose a rear sound cavity, the sounding monomer comprises a vibrating diaphragm for vibrating and sounding, and the shell comprises a front cover, a rear cover and a sound outlet penetrating through the front cover; the front cover comprises a front cover body, a front cover outer side wall extending from the front cover body and a front cover inner side wall extending from the front cover body; the loudspeaker box also comprises a support, one side of the sounding monomer provided with the vibrating diaphragm faces the sounding port, the support comprises a support body and a support extension wall, the inner side wall of the front cover is completely embedded in the support body, the front cover body is at least partially embedded in the support body, and the support body surrounds the periphery of the sounding monomer and is fixed with the sounding monomer in a sealing way; the sounding monomer, the bracket, the front cover and the rear cover jointly enclose a closed rear sound cavity. Compared with the related art, the loudspeaker box has the advantages of large cavity volume and good acoustic performance.
Description
[ field of technology ]
The invention relates to the field of electroacoustic conversion, in particular to a loudspeaker box applied to a portable mobile electronic product.
[ background Art ]
The loudspeaker box is widely applied to portable mobile electronic products, such as mobile phones, and is capable of converting audio signals into sound for playing, and has the advantages of high loudness and good low-frequency sound effect.
The loudspeaker box of the related art comprises a front cover, a rear cover and a sounding monomer, wherein the rear cover is covered on the front cover and jointly encloses an accommodating space, the sounding monomer is accommodated in the accommodating space, and the accommodating space is divided into a front cavity and a rear cavity by the sounding monomer.
However, the front cover and the rear cover of the speaker box of the related art are injection molded, and the sealing of the sounding monomer is realized by adopting an ultrasonic welding mode, so that more volume is required for ultrasonic welding, thereby limiting the volume design of the front cavity and the rear cavity, and further limiting the acoustic performance.
Accordingly, there is a need to provide a new loudspeaker enclosure that solves the above mentioned technical problems.
[ invention ]
The invention aims to provide a loudspeaker box with large cavity volume and good acoustic performance.
In order to achieve the above object, the present invention provides a speaker box, which comprises a housing and a sounding monomer fixedly accommodated in the housing, wherein the sounding monomer and the housing enclose a rear sound cavity together, the sounding monomer comprises a vibrating diaphragm for vibrating sounding,
the shell comprises a front cover made of a metal material, a rear cover made of a metal material, and a sound outlet, wherein the rear cover is fixed on the front cover, and the sound outlet penetrates through the front cover; the front cover comprises a front cover body provided with the sound outlet, a front cover outer side wall extending from the outer periphery of the front cover body to the rear cover direction and fixedly connected with the rear cover, and a front cover inner side wall extending from the inner periphery of the front cover body to the direction far away from the rear cover;
the loudspeaker box also comprises a ring-shaped bracket which is partially positioned in the shell and made of plastic, the bracket is arranged between the front cover and the sounding monomer and is fixedly connected with the front cover, the bracket is arranged around the sounding opening, one side of the sounding monomer provided with the vibrating diaphragm faces the sounding opening, the bracket comprises a ring-shaped bracket body which is at least partially positioned outside the shell and a bracket extension wall which extends from the bracket body into the shell, the inner side wall of the front cover is completely embedded in the bracket body, the front cover body is at least partially embedded in the bracket body, and the bracket body is arranged around the periphery of the sounding monomer and is sealed and fixed with the sounding monomer;
the sounding monomer, the bracket, the front cover and the rear cover jointly enclose a closed rear sound cavity.
Preferably, the front cover and the bracket are integrally injection molded.
Preferably, the speaker box further comprises a ventilation spacer located in the rear sound cavity, and the ventilation spacer is attached to the sounding unit and separates the sounding unit from the rear sound cavity.
Preferably, the ventilation separator comprises a separator body opposite to the rear cover at intervals and attached to the sounding unit, a separator extension part bent and extended from the periphery of the separator body towards the bracket direction, and a separator fixing part bent and extended from one end of the separator extension part far away from the separator body; the spacer extending part is arranged at intervals with the shell, and the spacer fixing part is fixed on one side of the bracket extending wall, which is close to the rear cover; the breathable isolation piece, the bracket, the front cover and the rear cover jointly enclose a powder filling space, and the powder filling space is used for filling sound absorbing materials.
Preferably, the speaker box further includes a conductive member for connecting the sounding unit with external electrical signals, the conductive member includes a conductive member body supported and fixed on one end of the support extending wall near the rear cover, a connecting arm extending from two ends of the conductive member body toward the sounding unit and fixedly and electrically connected with the sounding unit, and an extension arm extending from the conductive member body toward a direction far away from the sounding unit and penetrating through the housing; the support extends the wall and is close to one side of back lid is kept away from the back lid is sunken to form the accepting groove, electrically conductive piece body set up in the accepting groove and make electrically conductive piece body with support extends the wall and is close to one side parallel and level of back lid, the setting of isolator fixed part is pressed and is fixed in electrically conductive piece body is kept away from one side of support.
Preferably, the rear cover comprises a rear cover body and a rear cover side wall, wherein the rear cover body is arranged opposite to the spacer body at intervals, the rear cover side wall is bent and extended from the periphery of the rear cover body to the front cover direction and is in butt joint with the front cover outer side wall, and the extension arm penetrates through the front cover outer side wall and/or the rear cover side wall.
Preferably, the front cover body is far away from one side of the rear cover and is attached with a rubber ring, the rubber ring surrounds the support body, one side of the rubber ring far away from the rear cover is closer to the rear cover than one side of the support body far away from the rear cover.
Preferably, the rubber ring is made of double faced adhesive tape.
Compared with the related art, in the loudspeaker box, the front cover and the rear cover of the shell are made of metal materials, and the front cover is fixed through the bracket made of plastic materials so as to support and fix the sounding monomer; meanwhile, due to the structural design of the support, the front cover body and the inner side wall of the front cover are wrapped inside the support by the support, so that the loudspeaker box can be conveniently assembled with the whole machine.
[ description of the drawings ]
For a clearer description of the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments will be briefly introduced below, it being obvious that the drawings in the description below are only some embodiments of the present invention, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art, wherein:
fig. 1 is a schematic perspective view of a speaker box according to the present invention;
fig. 2 is a partially exploded perspective view of the speaker box of the present invention;
FIG. 3 is a cross-sectional view taken along line A-A of FIG. 1;
fig. 4 is an enlarged view of a portion shown in fig. 3B.
[ detailed description ] of the invention
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-4, the present invention provides a speaker box 100, which includes a housing 1, a sounding unit 2 fixedly accommodated in the housing 1, and a bracket 3 partially positioned in the housing 1, wherein the sounding unit 2 and the housing 1 together enclose a rear acoustic cavity 20.
The housing 1 includes a front cover 11 made of a metal material, a rear cover 12 made of a metal material cover-fixed to the front cover 11, and an acoustic outlet 13 provided through the front cover 11.
The loudspeaker box 100 further comprises a support 3, wherein the support 3 is made of plastic and is in a ring-shaped structure, the support 3 is arranged between the front cover 11 and the sounding unit 2 and is fixedly connected with the front cover 11, and the support 3 is arranged around the sound outlet 13.
The sound production monomer 2 includes the vibrating diaphragm 21 that is used for vibration sound production, the sound production monomer 2 is equipped with one side orientation of vibrating diaphragm 21 sound outlet 13 sets up, support 3 encircle sound production monomer 2's week side sets up and with sound production monomer 2 forms sealed fixed, thereby, sound production monomer 2 support 3 front cover 11 and back cover 12 enclose jointly and become inclosed back sound cavity 20.
In the above structure, the front cover 11, the rear cover 12 and the bracket 3 are combined, and the front cover 11 and the rear cover 12 are made of metal materials, and the bracket 3 made of plastic materials is fixed with the front cover 11 to support and fix the sounding monomer 2, so that the sounding monomer 2 can be designed to be thinner and assembled effectively on the premise of ensuring the structural strength of the shell 1, compared with the whole plastic shell structure, thereby greatly improving the cavity volume in the shell 1, effectively increasing the volume of the rear sound cavity 20 enclosed by the sounding monomer 2 and the shell 1, and further improving the acoustic performance of the loudspeaker box, especially the low-frequency acoustic performance.
Specifically, the front cover 11 includes a front cover body 111 provided with the sound outlet 13, a front cover outer side wall 112 extending from an outer periphery of the front cover body 111 toward the rear cover 12 and fixedly connected to the rear cover 12, and a front cover inner side wall 113 extending from an inner periphery of the front cover body 111 away from the rear cover 12.
The rear cover 12 includes a rear cover body 121 disposed opposite to the sounding unit 2 at an interval, and a rear cover side wall 122 extending from the periphery of the rear cover body 121 in a bending manner toward the front cover 11 and abutting against the front cover outer side wall 112. In this embodiment, the front cover 11 is welded to the rear cover side wall 122 of the rear cover by the front cover outer side wall 112, so that the front cover 11 and the rear cover 12 can be designed to be thinner and have more reliable fixing strength than the plastic structure in the prior art.
In this embodiment, a leakage part 22 is provided on a side of the sound generating unit 2 away from the diaphragm 21, and the leakage part 22 communicates with the rear acoustic chamber 20.
The sound production unit 2 is provided with one side of the vibrating diaphragm 21 faces the sound outlet 13, one side of the sound production unit 2, which is close to the vibrating diaphragm 21, is a sound production side, and is directly communicated with the outside to form a front sound production structure. More preferably, the sound generating unit 2 is partially exposed from the sound outlet 13, so as to further increase the volume of the rear sound cavity 20, and further improve the low-frequency acoustic performance.
The support 3 comprises a support body 31 which is at least partially positioned outside the shell 1 and is annular, and a support extension wall 32 which extends from the support body 31 to the inside of the shell 1, wherein the front cover inner side wall 113 is completely embedded in the support body 31, the front cover body 111 is at least partially embedded in the support body 31, and the support body 31 surrounds the periphery of the sounding single body 2 and is fixed with the sounding single body 2 in a sealing way. That is, part of the front cover body 111 and the front cover inner side wall 113 are embedded in the bracket 3, so that the fixing reliability of the front cover body 111 and the front cover inner side wall is better, and meanwhile, the front cover 11 is exposed in the front cover body 111 of the loudspeaker box 100 and is closer to the rear cover 12 relative to the bracket 3 because the front cover body 111 and the front cover inner side wall are wrapped in the bracket 3, so that the subsequent assembly of the loudspeaker box and the whole machine is facilitated; that is, when the front cover body 111 is fixed to the whole machine by attaching the rubber ring 6 to a side away from the rear cover 12, the rubber ring 6 is disposed around the bracket body 31, and a side of the rubber ring 6 away from the rear cover 12 is closer to the rear cover 12 than a side of the bracket body 31 away from the rear cover 12. That is, the surface of the front cover body 111 of the rubber ring 6 is higher than the bracket 3, so that the rubber ring 6 is fixed with the loudspeaker without affecting the sound outlet 13 and the sound outlet effect of the loudspeaker. In this embodiment, the front cover 11 and the bracket 3 are integrally injection molded. The rubber ring 6 is preferably made of double sided tape, but is not limited thereto, and may be made of rubber, sponge, or the like.
The bracket body 31 is disposed around the periphery of the sounding unit 2 and forms a seal with the sounding unit 2, so that the rear acoustic cavity 20 forms a closed space for improving low-frequency acoustic performance.
To further improve the low frequency acoustic performance of the speaker box 100, the speaker box 100 further includes a ventilation spacer 4 located in the rear sound chamber 20, and the ventilation spacer 4 is attached to the sound-producing unit 2 and separates the sound-producing unit 2 from the rear sound chamber 20, so that a powder filling space 10 that can be filled with a sound absorbing material is formed in the rear sound chamber 20.
Specifically, the ventilation spacer 4 includes a spacer body 41 facing the rear cover 12 at a distance and attached to the sounding unit 2, a spacer extension portion 42 extending from the periphery of the spacer body 41 in a direction of the bracket 3, and a spacer fixing portion 43 extending from one end of the spacer extension portion 42 away from the spacer body 41 in a bending manner. The spacer extension 42 is spaced apart from the housing 1, and the spacer fixing portion 43 is fixed to a side of the bracket extension wall 32 near the rear cover 12. The ventilation spacer 4, the bracket 3, the front cover 11 and the rear cover 12 together enclose the powder filling space 10, and the powder filling space 10 is used for filling sound absorbing materials such as sound absorbing particles, sound absorbing cotton and the like.
The speaker box 100 further includes a conductive member 5 for electrically connecting the sounding unit 2 to an external signal. In this embodiment, the conductive member 5 includes a conductive member body 51 supported and fixed on one end of the bracket extension wall 32 near the rear cover 12, a connection arm 52 extending from both ends of the conductive member body 51 toward the sounding unit 2 and fixedly and electrically connected to the sounding unit 2, and an extension arm 53 extending from the conductive member body 51 toward a direction away from the sounding unit 2 and penetrating through the housing 1. In the present embodiment, the extension arm 53 penetrates both the front cover outer side wall 112 and the rear cover side wall 122, and of course, the extension arm 53 may penetrate only the front cover outer side wall 112 or the rear cover side wall 122. The structure is convenient to assemble, and the position penetrating through the outer side wall 112 of the front cover and the position penetrating through the side wall 122 of the rear cover can be used as assembly positioning in advance, so that the assembly efficiency is improved.
In order to form an effective seal when the breathable spacer 4 is fixed to the bracket 3, and ensure that the sound absorbing material in the powder filling space 10 does not enter the sounding unit 2 to affect the performance of the sounding unit, in this embodiment, a side of the bracket extending wall 32, which is close to the rear cover 12, is far away from the rear cover 12 to form a receiving groove 311, the conductive member body 51 is disposed in the receiving groove 311 and makes the conductive member body 51 flush with a side of the bracket extending wall 32, which is close to the rear cover 12, and the spacer fixing portion 43 is pressed and fixed on a side of the conductive member body 51, which is far away from the bracket body 31.
Compared with the related art, in the loudspeaker box, the front cover and the rear cover of the shell are made of metal materials, and the front cover is fixed through the bracket made of plastic materials so as to support and fix the sounding monomer; meanwhile, due to the structural design of the support, the front cover body and the inner side wall of the front cover are wrapped inside the support by the support, so that the loudspeaker box can be conveniently assembled with the whole machine.
While the invention has been described with respect to the above embodiments, it should be noted that modifications can be made by those skilled in the art without departing from the inventive concept, and these are all within the scope of the invention.
Claims (8)
1. The loudspeaker box comprises a shell and a sounding monomer fixedly accommodated in the shell, wherein the sounding monomer and the shell jointly enclose a rear sound cavity, the sounding monomer comprises a vibrating diaphragm for vibrating and sounding,
the shell comprises a front cover made of a metal material, a rear cover made of a metal material, and a sound outlet, wherein the rear cover is fixed on the front cover, and the sound outlet penetrates through the front cover; the front cover comprises a front cover body provided with the sound outlet, a front cover outer side wall extending from the outer periphery of the front cover body to the rear cover direction and fixedly connected with the rear cover, and a front cover inner side wall extending from the inner periphery of the front cover body to the direction far away from the rear cover;
the loudspeaker box also comprises a ring-shaped bracket which is partially positioned in the shell and made of plastic, the bracket is arranged between the front cover and the sounding monomer and is fixedly connected with the front cover, the bracket is arranged around the sounding opening, one side of the sounding monomer provided with the vibrating diaphragm faces the sounding opening, the bracket comprises a ring-shaped bracket body which is at least partially positioned outside the shell and a bracket extension wall which extends from the bracket body into the shell, the inner side wall of the front cover is completely embedded in the bracket body, the front cover body is at least partially embedded in the bracket body, and the bracket body is arranged around the periphery of the sounding monomer and is sealed and fixed with the sounding monomer;
the sounding monomer, the bracket, the front cover and the rear cover jointly enclose a closed rear sound cavity.
2. The loudspeaker enclosure of claim 1, wherein the front cover is integrally injection molded with the bracket.
3. The loudspeaker enclosure of claim 1, further comprising an air-permeable barrier positioned within the rear acoustic chamber, the air-permeable barrier being positioned against and separating the sound-producing cells from the rear acoustic chamber.
4. A loudspeaker enclosure according to claim 3, wherein said air-permeable barrier comprises a barrier body opposed to said rear cover at a distance therefrom and bonded to said sound-generating unit, a barrier extension bent and extended from a peripheral edge of said barrier body toward said bracket, and a barrier fixing portion bent and extended from an end of said barrier extension remote from said barrier body; the spacer extending part is arranged at intervals with the shell, and the spacer fixing part is fixed on one side of the bracket extending wall, which is close to the rear cover; the breathable isolation piece, the bracket, the front cover and the rear cover jointly enclose a powder filling space, and the powder filling space is used for filling sound absorbing materials.
5. The loudspeaker box according to claim 4, further comprising a conductive member for electrically connecting the sounding unit with an external signal, wherein the conductive member comprises a conductive member body supported and fixed on one end of the support extension wall near the rear cover, connecting arms extending from both ends of the conductive member body toward the sounding unit and fixedly and electrically connected with the sounding unit, and extension arms extending from the conductive member body away from the sounding unit and penetrating through the housing; the support extends the wall and is close to one side of back lid is kept away from the back lid is sunken to form the accepting groove, electrically conductive piece body set up in the accepting groove and make electrically conductive piece body with support extends the wall and is close to one side parallel and level of back lid, the setting of isolator fixed part is pressed and is fixed in electrically conductive piece body is kept away from one side of support.
6. The loudspeaker enclosure according to claim 5, wherein the rear cover includes a rear cover body disposed opposite to the spacer body at a distance from the spacer body, and a rear cover side wall extending from a peripheral edge of the rear cover body to the front cover direction in a manner of being bent and fixed in abutment with the front cover outer side wall, the extension arm penetrating through the front cover outer side wall and/or the rear cover side wall.
7. The loudspeaker enclosure of claim 1, wherein a side of the front cover body remote from the rear cover is fitted with a rubber ring disposed around the bracket body and a side of the rubber ring remote from the rear cover is closer to the rear cover than a side of the bracket body remote from the rear cover.
8. The loudspeaker enclosure of claim 7, wherein the rubber ring is made of double sided tape.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010879350.5A CN112153501B (en) | 2020-08-27 | 2020-08-27 | Loudspeaker box |
| PCT/CN2020/124121 WO2022041457A1 (en) | 2020-08-27 | 2020-10-27 | Loudspeaker box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010879350.5A CN112153501B (en) | 2020-08-27 | 2020-08-27 | Loudspeaker box |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112153501A CN112153501A (en) | 2020-12-29 |
| CN112153501B true CN112153501B (en) | 2024-04-02 |
Family
ID=73888239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010879350.5A Active CN112153501B (en) | 2020-08-27 | 2020-08-27 | Loudspeaker box |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN112153501B (en) |
| WO (1) | WO2022041457A1 (en) |
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| CN112153501A (en) | 2020-12-29 |
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