CN112004170B - Loudspeaker box - Google Patents
Loudspeaker box Download PDFInfo
- Publication number
- CN112004170B CN112004170B CN202010879417.5A CN202010879417A CN112004170B CN 112004170 B CN112004170 B CN 112004170B CN 202010879417 A CN202010879417 A CN 202010879417A CN 112004170 B CN112004170 B CN 112004170B
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- China
- Prior art keywords
- sound
- front cover
- support
- rear cover
- sound generating
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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
- H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
Abstract
The invention provides a loudspeaker box, which comprises a shell, a sounding monomer and an annular support, wherein the sounding monomer is fixedly contained in the shell; the sound production unit and the shell jointly enclose a rear sound cavity, the sound production unit comprises a vibrating diaphragm, the shell comprises a front cover made of metal materials, a rear cover made of metal materials and covering and fixing the front cover, and a sound outlet penetrating through the front cover; the support encircles the sound outlet setting and wraps up the periphery of sound outlet in order to form fixed connection with the protecgulum, and one side that the sound production monomer was equipped with the vibrating diaphragm sets up towards the sound outlet, and the support encircles the free week side of sound production and forms sealed fixed with the sound production monomer, and sound production monomer, support, protecgulum and hou gai enclose into inclosed back vocal chamber jointly. 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, a sound generating unit fixedly accommodated in the housing, and a ring-shaped support made of plastic and located in the housing; the sound generating unit and the shell jointly enclose a rear sound cavity, the sound generating unit comprises a vibrating diaphragm for vibrating and generating sound, and the shell comprises a front cover made of a metal material, a rear cover made of a metal material and covering and fixing the front cover, and a sound outlet penetrating through the front cover; the support encircles the sound outlet sets up and will the periphery parcel of sound outlet in order with the protecgulum forms fixed connection, the sound production monomer is equipped with one side orientation of vibrating diaphragm the sound outlet support in the support, the support encircles the free week side of sound production sets up and with the sound production monomer forms sealed fixed, the sound production monomer the support the protecgulum and the back lid encloses jointly inclosed the back sound cavity.
Preferably, 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 rear cover direction; the support is including being located casing and butt simultaneously are fixed in the protecgulum body with the support body of protecgulum inside wall and by the support body is followed the protecgulum inside wall extends and will the support extension wall of protecgulum inside wall parcel, the support extension wall surrounds sound production free week side set up and with sound production free body forms sealed fixed.
Preferably, one end of the bracket extending wall far away from the rear cover is flush with the front cover body.
Preferably, the front cover and the bracket are integrally formed by plastic.
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 isolating piece extending part is arranged at a distance from the shell, and the isolating piece fixing part is fixed on one side of the bracket body 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 bracket body 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 extending arm which extends from the conductive piece body to a direction far away from the sounding monomer and penetrates through the shell; one side of the support body, which is close to the rear cover, is sunken to form an accommodating groove, the conductive piece body is arranged in the accommodating groove, the conductive piece body and one side of the support body, which is close to the rear cover, are flush, and the isolating piece fixing part is simultaneously pressed and fixed on the conductive piece body and the support.
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 towards the front cover from the periphery of the rear cover body 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 the outer side wall of the rear cover simultaneously.
Preferably, one side of the front cover, which is far away from the rear cover, is attached with a rubber ring, and the rubber ring surrounds the sound outlet.
Preferably, the rubber ring is a 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.
[ 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 located in the housing 1, wherein the sound generating unit 2 and the housing 1 jointly form a rear sound cavity 10.
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.
The support 3 is made of plastic and is of an annular structure, the support 3 is arranged around the sound outlet 13, and the periphery of the sound outlet 13 is wrapped to form fixed connection with 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 10 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 toward 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 one side of the sound generating unit 2 away from the diaphragm 21, and the leakage portion 22 is communicated with the rear sound cavity 10.
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 sounding unit 2 is partially exposed out of the sound emitter 13, so as to further increase the volume of the rear sound cavity 10, thereby further improving the low-frequency acoustic performance.
The holder 3 includes a holder body 31 and a holder extension wall 32 extending from the holder body 31.
The bracket body 31 is located in the housing 1 and is abutted and fixed to the front cover body 111 and the front cover inner side wall 113. The bracket extension wall 32 extends along the front cover inner side wall 113 and wraps the front cover inner side wall 113, namely, the front cover inner side wall 113 is embedded in the bracket 3, so that the fixing reliability of the front cover inner side wall and the bracket extension wall is better. In this embodiment, the front cover 1 and the bracket 3 are integrally formed by plastic molding.
The support extension wall 32 surrounds the periphery of the sound generating unit 2 and is sealed and fixed with the sound generating unit 2, so that the rear sound cavity 10 forms a closed space to improve the low-frequency acoustic performance.
In this embodiment, an end of the bracket extension wall 32 away from the rear cover 12 is flush with the front cover body 111. The structure arrangement enables the support 3 and the front cover 11 to be consistent in structure, and the overall appearance attractiveness is better.
For further improving the low frequency acoustic performance of loudspeaker 100, speaker box 100 is still including being located ventilative separator 4 in back sound chamber 10, ventilative separator 4 pastes and locates sound production monomer 2 will sound production monomer 2 is followed separate in the back sound chamber 10 to make and fill sound absorbing material in the back sound chamber 10.
Specifically, the ventilation isolation member 4 includes an isolation member body 41 opposite to and attached to the back cover 12 at an interval, an isolation member extension portion 42 extending from the periphery of the isolation member body 41 toward the support 3, and an isolation member fixing portion 43 extending from the isolation member extension portion 42 away from one end of the isolation member body 41, and the isolation member fixing portion can be bent and extended toward a direction close to the front cover outer side wall 112, and can also be bent and extended toward a direction away from the front cover outer side wall 112. The spacer extension part 42 is spaced apart from the housing 1, and the spacer fixing part 42 is fixed to one side of the bracket body 31 close to the rear cover 12. Ventilative separator 4 the support 3 the protecgulum 11 reaches back lid 12 encloses into jointly and irritates the powder space, irritate the powder space and be used for filling sound absorbing material, for example inhale the sound granule, inhale the sound cotton etc..
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 fixed on the bracket body 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 electrically connected to the sounding unit 2, and an extending arm 53 extending from the conductive device body 51 to a direction far away from the sounding unit 2 and penetrating through the housing 1. In this embodiment, the extension arm 53 penetrates through both the front cover outer sidewall 112 and the rear cover sidewall 122, the structure is convenient to assemble, and the position penetrating through the front cover outer sidewall 112 and the position penetrating through the rear cover sidewall 122 can be used as an assembly positioning in advance, thereby improving the assembly efficiency.
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 does not enter the sound-generating unit 2 and affect the performance thereof, in this embodiment, one side of the bracket body 31 close to the rear cover 12 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 body 31 are flush with each other at one side close to the rear cover 12, and the partition fixing portion 43 is pressed and fixed on the conductive piece body 51 and the bracket body 31 of the bracket 3 at the same time.
Preferably, in the present embodiment, a rubber ring 6 is attached to a side of the front cover 11 away from the rear cover 12, and the rubber ring 6 is disposed around the sound outlet 13. The rubber ring 6 is used for realizing fixed sealing with the terminal whole machine when the speaker 100 is installed on the terminal. In the present embodiment, the rubber ring 6 is a double-sided tape, but is not limited thereto, and may be rubber, sponge, or the like.
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.
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 (9)
1. A loudspeaker box comprises a shell and a sound generating unit which is fixedly accommodated in the shell, wherein the sound generating unit and the shell jointly enclose a rear sound cavity, and the sound generating unit comprises a vibrating diaphragm for vibrating and generating sound; the loudspeaker box also comprises an annular support which is made of plastics and is positioned in the shell, the support surrounds the sound outlet and wraps the periphery of the sound outlet to form fixed connection with the front cover, one side of the sound generating monomer, which is provided with the vibrating diaphragm, faces the sound outlet and is supported on the support, the support surrounds the periphery of the sound generating monomer and forms sealed fixation with the sound generating monomer, and the sound generating monomer, the support, the front cover and the rear cover jointly enclose a closed rear sound cavity; 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 rear cover direction; the support is including being located casing and butt simultaneously are fixed in the protecgulum body with the support body of protecgulum inside wall and by the support body is followed the protecgulum inside wall extends and will the support extension wall of protecgulum inside wall parcel, the support extension wall surrounds sound production free week side set up and with sound production free body forms sealed fixed.
2. A loudspeaker enclosure according to claim 1, wherein the end of the bracket extension wall remote from the rear cover is flush with the front cover body.
3. A loudspeaker enclosure according to claim 1, wherein the front cover and the support are integrally formed of plastics material.
4. 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.
5. The speaker box according to claim 4, 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 bending 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 bending manner; the isolating piece extending part is arranged at a distance from the shell, and the isolating piece fixing part is fixed on one side of the bracket body 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.
6. The speaker box according to claim 5, 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 at one end of the bracket body 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 and 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; one side of the support body, which is close to the rear cover, is sunken to form an accommodating groove, the conductive piece body is arranged in the accommodating groove, the conductive piece body and one side of the support body, which is close to the rear cover, are flush, and the isolating piece fixing part is simultaneously pressed and fixed on the conductive piece body and the support.
7. The speaker box of claim 6, wherein the rear cover includes a rear cover body disposed opposite to the spacer body at a distance, and a rear cover sidewall bent 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 both the front cover outer sidewall and the rear cover sidewall.
8. The speaker box of claim 1, wherein a side of the front cover remote from the rear cover is attached with a rubber ring, and the rubber ring is disposed around the sound outlet.
9. A loudspeaker enclosure according to claim 8, wherein the adhesive ring is double-sided adhesive.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010879417.5A CN112004170B (en) | 2020-08-27 | 2020-08-27 | Loudspeaker box |
| PCT/CN2020/125478 WO2022041469A1 (en) | 2020-08-27 | 2020-10-30 | Speaker box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010879417.5A CN112004170B (en) | 2020-08-27 | 2020-08-27 | Loudspeaker box |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112004170A CN112004170A (en) | 2020-11-27 |
| CN112004170B true CN112004170B (en) | 2021-08-06 |
Family
ID=73471214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010879417.5A Active CN112004170B (en) | 2020-08-27 | 2020-08-27 | Loudspeaker box |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN112004170B (en) |
| WO (1) | WO2022041469A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112637753B (en) * | 2020-12-02 | 2022-09-06 | 益阳市信维声学科技有限公司 | Preparation method of loudspeaker module |
| CN112511932B (en) * | 2020-12-18 | 2022-08-26 | 瑞声新能源发展(常州)有限公司科教城分公司 | Loudspeaker box and assembling process thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200952505A (en) * | 2008-06-13 | 2009-12-16 | Foxconn Tech Co Ltd | Sound box structure |
| TW201004272A (en) * | 2008-07-04 | 2010-01-16 | Chi Mei Comm Systems Inc | Portable electronic device |
| CN107547957A (en) * | 2017-08-22 | 2018-01-05 | 瑞声科技(新加坡)有限公司 | Loudspeaker enclosure |
| CN211321500U (en) * | 2020-01-09 | 2020-08-21 | 瑞声科技(新加坡)有限公司 | Loudspeaker box |
| CN211321488U (en) * | 2020-01-09 | 2020-08-21 | 瑞声科技(新加坡)有限公司 | Loudspeaker box |
| CN211321501U (en) * | 2020-01-09 | 2020-08-21 | 瑞声科技(新加坡)有限公司 | Loudspeaker box |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106257937A (en) * | 2016-04-29 | 2016-12-28 | 歌尔股份有限公司 | A kind of sound-producing device and the preparation method of metal plastic part |
| CN206433169U (en) * | 2017-01-16 | 2017-08-22 | 瑞声科技(新加坡)有限公司 | Microphone device |
| CN108989944B (en) * | 2018-08-03 | 2021-02-19 | 瑞声光电科技(常州)有限公司 | Loudspeaker box |
-
2020
- 2020-08-27 CN CN202010879417.5A patent/CN112004170B/en active Active
- 2020-10-30 WO PCT/CN2020/125478 patent/WO2022041469A1/en active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200952505A (en) * | 2008-06-13 | 2009-12-16 | Foxconn Tech Co Ltd | Sound box structure |
| TW201004272A (en) * | 2008-07-04 | 2010-01-16 | Chi Mei Comm Systems Inc | Portable electronic device |
| CN107547957A (en) * | 2017-08-22 | 2018-01-05 | 瑞声科技(新加坡)有限公司 | Loudspeaker enclosure |
| CN211321500U (en) * | 2020-01-09 | 2020-08-21 | 瑞声科技(新加坡)有限公司 | Loudspeaker box |
| CN211321488U (en) * | 2020-01-09 | 2020-08-21 | 瑞声科技(新加坡)有限公司 | Loudspeaker box |
| CN211321501U (en) * | 2020-01-09 | 2020-08-21 | 瑞声科技(新加坡)有限公司 | Loudspeaker box |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2022041469A1 (en) | 2022-03-03 |
| CN112004170A (en) | 2020-11-27 |
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