CN112153501A - Loudspeaker box - Google Patents
Loudspeaker box Download PDFInfo
- Publication number
- CN112153501A CN112153501A CN202010879350.5A CN202010879350A CN112153501A CN 112153501 A CN112153501 A CN 112153501A CN 202010879350 A CN202010879350 A CN 202010879350A CN 112153501 A CN112153501 A CN 112153501A
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- CN
- China
- Prior art keywords
- front cover
- support
- sound
- rear cover
- shell
- 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.)
- Granted
Links
- 239000000178 monomer Substances 0.000 claims abstract description 41
- 238000004519 manufacturing process Methods 0.000 claims abstract description 29
- 238000007789 sealing Methods 0.000 claims abstract description 3
- 238000005192 partition Methods 0.000 claims description 13
- 239000004033 plastic Substances 0.000 claims description 12
- 229920003023 plastic Polymers 0.000 claims description 12
- 125000006850 spacer group Chemical group 0.000 claims description 12
- 239000007769 metal material Substances 0.000 claims description 9
- 238000002955 isolation Methods 0.000 claims description 8
- 239000000843 powder Substances 0.000 claims description 8
- 230000000149 penetrating effect Effects 0.000 claims description 7
- 239000011358 absorbing material Substances 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 239000000853 adhesive Substances 0.000 claims 1
- 230000001070 adhesive effect Effects 0.000 claims 1
- 238000002347 injection Methods 0.000 claims 1
- 239000007924 injection Substances 0.000 claims 1
- 239000002184 metal Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 239000000243 solution Substances 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
- 239000002245 particle Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000005236 sound signal Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 230000001755 vocal effect Effects 0.000 description 1
Images
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
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- 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 sound production monomer, wherein the sound production monomer is fixedly contained in the shell, the sound production monomer and the shell jointly enclose a rear sound cavity, the sound production monomer comprises a vibrating diaphragm for vibrating sound production, and the shell comprises a front cover, a rear cover and a sound outlet which penetrates 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 sound generating monomer, which is provided with the vibrating diaphragm, is arranged towards the sound outlet, 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, at least part of the front cover body is embedded in the support body, and the support body is arranged around the periphery of the sound generating monomer and forms sealing fixation with the sound generating monomer; the sounding monomer, the support, the front cover and the rear cover jointly form 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
[ technical field ] A method for producing a semiconductor device
The invention relates to the field of electroacoustic conversion, in particular to a loudspeaker box applied to a portable mobile electronic product.
[ background of the invention ]
The loudspeaker box is widely applied to portable mobile electronic products, such as mobile phones, so that audio signals are converted into sound to be played, the loudspeaker box is high in loudness, and the low-frequency sound effect is good.
The loudspeaker box in the related art comprises a front cover, a rear cover and a sound generating unit, wherein the rear cover is covered on the front cover and jointly forms an accommodating space, the sound generating unit is accommodated in the accommodating space, and the accommodating space is divided into a front cavity and a rear cavity by the sound generating unit.
However, the front cover and the rear cover of the speaker box in the related art are formed by injection molding, and the sound generating unit is sealed by ultrasonic welding, which requires more volume, so that the volume design of the front cavity and the rear cavity is limited, and the acoustic performance is limited.
Therefore, there is a need to provide a new speaker box to solve the above technical problems.
[ summary of the invention ]
The invention aims to provide a loudspeaker box with a large cavity and good acoustic performance.
In order to achieve the above object, the present invention provides a speaker box, which comprises a housing and a sound generating unit fixedly accommodated in the housing, wherein the sound generating unit and the housing together form a rear sound cavity, the sound generating unit comprises a vibrating diaphragm for vibrating and generating sound,
the shell comprises a front cover made of metal materials, a rear cover made of metal materials and fixed on the front cover in a covering mode, and a sound outlet penetrating 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 further comprises an annular support which is made of plastics and is partially located in the shell, the support is arranged between the front cover and the sounding monomer and is fixedly connected with the front cover, the support surrounds the sounding port, one side, provided with the vibrating diaphragm, of the sounding monomer faces the sounding port, the support comprises an annular support body and a support extension wall, at least part of the support is located outside the shell, the support extension wall extends into the shell from the support body, the inner side wall of the front cover is completely embedded in the support body, at least part of the front cover body is embedded in the support body, and the support body surrounds the periphery of the sounding monomer and forms sealing fixation with the sounding monomer;
the sound production monomer, the support, the front cover and the rear cover enclose a closed rear sound cavity together.
Preferably, the front cover and the bracket are integrally formed by injection molding.
Preferably, the loudspeaker box further comprises a breathable isolating piece located in the rear sound cavity, and the breathable isolating piece is attached to the sound generating unit and separates the sound generating unit from the rear sound cavity.
Preferably, the breathable isolating piece comprises an isolating piece body which is opposite to the rear cover at intervals and is attached to the sounding single body, an isolating piece extending part which is bent and extended from the periphery of the isolating piece body to the direction of the support, and an isolating piece fixing part which is bent and extended from one end, far away from the isolating piece body, of the isolating piece extending part; the isolation part extending part is arranged at a distance from the shell, and the isolation part fixing part is fixed on one side of the support extending wall close to the rear cover; the breathable partition, the support, 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 comprises a conductive piece for connecting the sounding monomer with an external electrical signal, wherein the conductive piece comprises a conductive piece body which is supported and fixed at one end of the support extension wall close to the rear cover, a connecting arm which extends from two ends of the conductive piece body to the sounding monomer and is fixedly and electrically connected with the sounding monomer, and an extension arm which extends from the conductive piece body to a direction far away from the sounding monomer and penetrates through the shell; the side, close to the rear cover, of the support extension wall is far away from the rear cover and is sunken to form an accommodating groove, the conductive piece body is arranged in the accommodating groove, the conductive piece body is flush with the side, close to the rear cover, of the support extension wall, and the isolation piece fixing part is fixedly pressed on the side, far away from the support, of the conductive piece body.
Preferably, the rear cover comprises a rear cover body and a rear cover side wall, the rear cover body is arranged opposite to the partition 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 fixedly connected with the outer side wall of the front cover in an abutting mode, and the extension arm penetrates through the outer side wall of the front cover 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 to a rubber ring, the rubber ring surrounds the support body, one side of the rear cover, far away from the rubber ring, 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-sided adhesive tape.
Compared with the prior art, the loudspeaker box has the advantages that the front cover and the rear cover of the shell are made of metal materials, the support made of plastic materials is fixed with the front cover to support and fix the sounding monomer, in the structure, the plastic support is combined with the metal front cover, and the metal front cover is combined with the metal rear cover, so that the loudspeaker box can be designed to be thinner relative to a full-plastic shell structure on the premise of ensuring the structural strength of the shell, the volume of a cavity in the shell is greatly increased, the volume of a rear sound cavity enclosed by the sounding monomer and the shell is effectively increased, and the acoustic performance, particularly the low-frequency acoustic performance of the loudspeaker box is improved; simultaneously, the structural design of support makes the support wrap up the inside of front cover body and front cover inside wall to the support, the subsequent assembly with the complete machine of speaker box of being convenient for.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:
FIG. 1 is a schematic perspective view of a speaker box according to the present invention;
FIG. 2 is an exploded perspective view of a portion of the speaker box of the present invention;
FIG. 3 is a sectional view taken along line A-A of FIG. 1;
fig. 4 is an enlarged view of a portion B shown in fig. 3.
[ detailed description ] embodiments
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a speaker box 100, which includes a housing 1, a sound generating unit 2 fixedly accommodated in the housing 1, and a support 3 partially located in the housing 1, wherein the sound generating unit 2 and the housing 1 together form a rear sound cavity 20.
The housing 1 includes a front cover 11 made of a metal material, a rear cover 12 made of a metal material and covering and fixed to the front cover 11, and a sound outlet 13 penetrating the front cover 11.
In the above-mentioned structure, protecgulum 11, the integrated configuration of back lid 12 and support 3, because of protecgulum 11 and back lid 12 are made for metal material, support 3 that makes through plastic materials is fixed with protecgulum 11, be used for supporting fixed sound production monomer 2, under the prerequisite of guaranteeing casing 1's structural strength, it not only can be designed thinly for full plastic housing structure, and equally effectual assembly sound production monomer 2, thereby the improvement of very big degree the cavity volume in the casing 1, effectual increased sound production monomer 2 with the volume of the back sound chamber 20 that casing 1 encloses, and then improved the acoustic performance of speaker box, especially 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 peripheral edge 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 peripheral edge 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 sound generating unit 2 at an interval, and a rear cover sidewall 122 bent and extended from the periphery of the rear cover body 121 toward the front cover 11 and fixed in contact with the front cover outer sidewall 112. In this embodiment, the front cover 11 is fixed by welding the front cover outer side wall 112 and the rear cover side wall 122 of the rear cover, and the front cover 11 and the rear cover 12 can be designed to be thinner and have more reliable fixing strength compared with the prior art plastic structure.
In this embodiment, a leakage portion 22 is disposed on a side of the sound generating unit 2 away from the diaphragm 21, and the leakage portion 22 is communicated with the rear sound cavity 20.
The sound production monomer 2 is equipped with one side orientation of vibrating diaphragm 21 sound outlet 13 sets up, and one side that sound production monomer 2 is close to vibrating diaphragm 21 is the sound production side promptly, and direct and external intercommunication forms positive sound production structure. Preferably, the sound generating unit 2 is partially exposed out of the sound outlet 13, so as to further increase the volume of the rear sound cavity 20, thereby further improving the low-frequency acoustic performance.
The support 3 is located including at least part the casing 1 is outer be annular support body 31 and by the support body 31 extends to support extension wall 32 in the casing 1, protecgulum inside wall 113 inlays completely in the support body 31, protecgulum body 111 inlays partially at least and locates in the support body 31, support body 31 encircles sound production monomer 2's week side sets up and with sound production monomer 2 forms sealed fixed. Meanwhile, because the front cover body 111 and the inner side wall of the front cover are wrapped in the bracket 3, the front cover body 111 exposed on the loudspeaker box 100 is closer to the rear cover 12 relative to the bracket 3, which is convenient for the subsequent assembly of the loudspeaker box and the whole machine; that is, when the rubber ring 6 is attached to one side of the front cover body 111 far away from the rear cover 12 for fixing with the whole machine, the rubber ring 6 is arranged around the bracket body 31, and one side of the rubber ring 6 far away from the rear cover 12 is closer to the rear cover 12 than one side of the bracket body 31 far away from the rear cover 12. That is, the rubber ring 6 is higher than the bracket 3 due to the surface attached to the front cover body 111, so that the rubber ring 6 is fixed with the loudspeaker without affecting the sound outlet 13 and further without affecting the sound effect of the loudspeaker. In this embodiment, the front cover 1 and the bracket 3 are integrally injection-molded. Preferably, the rubber ring 6 is made of double-sided tape, but is not limited thereto, and may be rubber, sponge, or the like.
The support body 31 encircles the week side setting of sound production monomer 2 and with sound production monomer 2 forms sealed fixed to make back sound cavity 20 form airtight space, be used for improving low frequency acoustic performance.
In order to further improve the low-frequency acoustic performance of the speaker 100, the speaker box 100 further includes a breathable isolation piece 4 located in the rear sound cavity 20, the breathable isolation piece 4 is attached to the sound-emitting single body 2 and separates the sound-emitting single body 2 from the rear sound cavity 20, so that a powder filling space 10 capable of being filled with sound-absorbing materials is formed in the rear sound cavity 20.
Specifically, the ventilation spacer 4 includes a spacer body 41 opposite to the rear cover 12 at a certain interval and attached to the sound generating unit 1, a spacer extension portion 42 extending from the periphery of the spacer body 41 to the support 3 in a bending manner, and a spacer fixing portion 43 extending from the spacer extension portion 42 away from one end of 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 31 close to the rear cover 12. The breathable partition 4, the support 3, the front cover 11 and the rear cover 12 jointly 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 connecting the sound generating unit 2 with an external electric signal. In this embodiment, the conductive device 5 includes a conductive device body 51 supported and fixed on the bracket extension wall 31 near one end of the rear cover 12, a connecting arm 52 extending from two ends of the conductive device body 51 to the sounding unit 2 and fixedly electrically connected to the sounding unit 2, and an extension arm 53 extending from the conductive device body 51 to a direction away from the sounding unit 2 and penetrating through the housing 1. In the present embodiment, the extension arm 53 extends through both the front cover outer sidewall 112 and the rear cover sidewall 122, but the extension arm 53 may extend through only the front cover outer sidewall 112 or the rear cover sidewall 122. The structure is convenient to assemble, and the position penetrating through the front cover outer side wall 112 and the position penetrating through the rear cover side wall 122 can be used as assembly positioning in advance, so that the assembly efficiency is improved.
In order to effectively seal the air-permeable partition 4 and the bracket 3 when they are fixed, and ensure that the sound-absorbing material in the powder filling space 10 does not enter the sound-generating unit 2 and affect the performance thereof, in this embodiment, one side of the bracket extension wall 31 close to the rear cover 12 is far away from the rear cover 12, and is recessed to form a receiving groove 311, the conductive piece body 51 is disposed in the receiving groove 311, so that the conductive piece body 51 and the bracket extension wall 31 are close to one side of the rear cover 12, and the partition fixing portion 43 is pressed and fixed on one side of the conductive piece body 51 far away from the bracket body 31.
Compared with the prior art, the loudspeaker box has the advantages that the front cover and the rear cover of the shell are made of metal materials, the support made of plastic materials is fixed with the front cover to support and fix the sounding monomer, in the structure, the plastic support is combined with the metal front cover, and the metal front cover is combined with the metal rear cover, so that the loudspeaker box can be designed to be thinner relative to a full-plastic shell structure on the premise of ensuring the structural strength of the shell, the volume of a cavity in the shell is greatly increased, the volume of a rear sound cavity enclosed by the sounding monomer and the shell is effectively increased, and the acoustic performance, particularly the low-frequency acoustic performance of the loudspeaker box is improved; simultaneously, the structural design of support makes the support wrap up the inside of front cover body and front cover inside wall to the support, the subsequent assembly with the complete machine of speaker box of being convenient for.
While the foregoing is directed to embodiments of the present invention, it will be understood by those skilled in the art that various changes may be made without departing from the spirit and scope of the invention.
Claims (8)
1. A loudspeaker box comprises a shell and a sound production single body which is fixedly contained in the shell, wherein the sound production single body and the shell jointly enclose a rear sound cavity, the sound production single body comprises a vibrating diaphragm for vibrating and producing sound, and the loudspeaker box is characterized in that,
the shell comprises a front cover made of metal materials, a rear cover made of metal materials and fixed on the front cover in a covering mode, and a sound outlet penetrating 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 further comprises an annular support which is made of plastics and is partially located in the shell, the support is arranged between the front cover and the sounding monomer and is fixedly connected with the front cover, the support surrounds the sounding port, one side, provided with the vibrating diaphragm, of the sounding monomer faces the sounding port, the support comprises an annular support body and a support extension wall, at least part of the support is located outside the shell, the support extension wall extends into the shell from the support body, the inner side wall of the front cover is completely embedded in the support body, at least part of the front cover body is embedded in the support body, and the support body surrounds the periphery of the sounding monomer and forms sealing fixation with the sounding monomer;
the sound production monomer, the support, the front cover and the rear cover enclose a closed rear sound cavity together.
2. A loudspeaker enclosure according to claim 1, wherein the front cover is integrally injection moulded with the bracket.
3. The speaker box of claim 1, further comprising a breathable spacer located within the rear acoustic chamber, the breathable spacer being attached to the sound-emitting units and separating the sound-emitting units from the rear acoustic chamber.
4. The speaker box according to claim 3, wherein the air-permeable partition includes a partition body spaced from and facing the rear cover and attached to the sound generating unit, a partition extending portion extending from a peripheral edge of the partition body in a bent manner toward the bracket, and a partition fixing portion extending from an end of the partition extending portion away from the partition body in a bent manner; the isolation part extending part is arranged at a distance from the shell, and the isolation part fixing part is fixed on one side of the support extending wall close to the rear cover; the breathable partition, the support, 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 speaker box according to claim 4, further comprising a conductive member for connecting the sound generating unit with an external electrical 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, a connecting arm extending from two ends of the conductive member body to the direction of the sound generating unit and fixedly electrically connected with the sound generating unit, and an extension arm extending from the conductive member body to a direction away from the sound generating unit and penetrating through the housing; the side, close to the rear cover, of the support extension wall is far away from the rear cover and is sunken to form an accommodating groove, the conductive piece body is arranged in the accommodating groove, the conductive piece body is flush with the side, close to the rear cover, of the support extension wall, and the isolation piece fixing part is fixedly pressed on the side, far away from the support, of the conductive piece body.
6. The speaker box according to claim 5, wherein the rear cover comprises a rear cover body disposed opposite to the spacer body at a distance, and a rear cover sidewall bent and extended from a periphery of the rear cover body toward the front cover and fixed in abutment with the front cover outer sidewall, and the extension arm penetrates through the front cover outer sidewall and/or the rear cover sidewall.
7. The speaker box of claim 1, wherein a side of the front cover body away from the rear cover is attached with a rubber ring, the rubber ring is disposed around the bracket body, and a side of the rubber ring away from the rear cover is closer to the rear cover than a side of the bracket body away from the rear cover.
8. A loudspeaker enclosure according to claim 7, wherein the rubber ring is made of double-sided adhesive.
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 true CN112153501A (en) | 2020-12-29 |
| CN112153501B 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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| WO2022041457A1 (en) | 2022-03-03 |
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