CN112073852B - Loudspeaker box - Google Patents

Loudspeaker box Download PDF

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Publication number
CN112073852B
CN112073852B CN202010880923.6A CN202010880923A CN112073852B CN 112073852 B CN112073852 B CN 112073852B CN 202010880923 A CN202010880923 A CN 202010880923A CN 112073852 B CN112073852 B CN 112073852B
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CN
China
Prior art keywords
cover
sound
support
fixing
monomer
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.)
Active
Application number
CN202010880923.6A
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Chinese (zh)
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CN112073852A (en
Inventor
吴军
印兆宇
魏威
刘忠原
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AAC Microtech Changzhou Co Ltd
Science and Education City Branch of AAC New Energy Development Changzhou Co Ltd
Original Assignee
AAC Microtech Changzhou Co Ltd
Science and Education City Branch of AAC New Energy Development Changzhou Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by AAC Microtech Changzhou Co Ltd, Science and Education City Branch of AAC New Energy Development Changzhou Co Ltd filed Critical AAC Microtech Changzhou Co Ltd
Priority to CN202010880923.6A priority Critical patent/CN112073852B/en
Publication of CN112073852A publication Critical patent/CN112073852A/en
Application granted granted Critical
Publication of CN112073852B publication Critical patent/CN112073852B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00Details of transducers, loudspeakers or microphones
    • H04R1/02Casings; Cabinets ; Supports therefor; Mountings therein
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00Details of transducers, loudspeakers or microphones
    • H04R1/20Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only
    • H04R1/28Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
    • H04R1/2807Enclosures comprising vibrating or resonating arrangements
    • H04R1/2811Enclosures comprising vibrating or resonating arrangements for loudspeaker transducers

Abstract

The invention provides a loudspeaker box which comprises a shell, a sounding monomer and a bracket made of a plastic material, wherein the shell is made of a metal material and comprises an upper cover and a lower cover; the upper cover comprises an upper cover plate, an upper cover side wall, a sound outlet and a side wall extending part surrounding the sound outlet; the support comprises an annular support fixing part and an annular support sound guide part, the support fixing part is fixed on the upper cover plate, the sound generating monomer is supported on the support fixing part and is spaced from the upper cover, the support fixing part surrounds the periphery of the sound generating monomer and forms sealing fixation with the sound generating monomer, the support and the upper cover enclose a front sound cavity, and the sound generating monomer, the support, the upper cover and the lower cover enclose a rear sound cavity; the sound guide part of the bracket is provided with a sound guide channel which communicates the front sound cavity with the outside through a sound outlet; the side wall extension part is arranged around the sound guide channel and is embedded and fixed on the sound guide part of the bracket. Compared with the related art, the loudspeaker box has the advantages of large cavity volume and good acoustic performance.

Description

Loudspeaker box
[ 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 includes a housing, a sound generating unit fixedly accommodated in the housing, and a support made of a plastic material, wherein the sound generating unit includes a vibrating diaphragm for vibrating sound, the housing is made of a metal material, and the housing includes an upper cover and a lower cover respectively covering two opposite sides of the sound generating unit along a vibration direction of the vibrating diaphragm; the upper cover comprises an upper cover plate arranged opposite to the lower cover, an upper cover side wall bent and extended from the periphery of the upper cover plate to the direction of the lower cover and fixedly connected with the lower cover, a sound outlet penetrating through the upper cover side wall and a side wall extension part extending from the upper cover side wall to the direction close to the sound generating monomer and surrounding the sound outlet; the support comprises an annular support fixing part and a support sound guide part, the annular support fixing part is positioned in the shell and fixed on the upper cover plate, the support sound guide part extends from the support fixing part to the direction far away from the sound generating monomer, one side, provided with the vibrating diaphragm, of the sound generating monomer is supported on the support fixing part and is arranged at an interval with the upper cover, one side, far away from the upper cover, of the support fixing part surrounds the periphery of the sound generating monomer and forms sealing fixation with the sound generating monomer, the support and the upper cover form a front sound cavity in a surrounding mode, and the sound generating monomer, the support, the upper cover and the lower cover form a rear sound cavity in a surrounding mode; the sound guide part of the bracket is provided with a sound guide channel penetrating through the sound guide part, and the sound guide channel connects the front sound cavity with the outside through the sound outlet; the side wall extension part is arranged around the sound guide channel and is embedded and fixed on the support sound guide part.
Preferably, the bracket fixing portion includes an annular fixing portion body fixed to the upper cover plate, and an annular fixing portion extending wall bent and extending along the circumferential side of the sounding unit toward the lower cover along the circumferential side of the sounding unit, and the fixing portion extending wall forms a seal with the circumferential side of the sounding unit.
Preferably, the upper cover and the bracket are integrally formed by injection molding.
Preferably, the loudspeaker box further comprises a buffer piece attached to the side wall of the upper cover, the buffer piece is provided with a through hole penetrating through the buffer piece, and the through hole is communicated with the sound guide channel.
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 lower cover at intervals and is attached to the sounding single body, and an isolating piece extending part which is bent and extended from the periphery of the isolating piece body to the direction of the support; the isolating piece extending part and the side wall of the upper cover are arranged at intervals and fixed on the bracket fixing part; the breathable partition, the support, the upper cover and the lower cover jointly enclose a powder filling space, and the powder filling space is used for filling sound-absorbing materials.
Preferably, the shell is provided with a powder filling hole penetrating through the shell, and the powder filling hole is communicated with the rear sound cavity; the loudspeaker box also comprises a sealing cover attached to the shell, and the sealing cover completely covers the powder filling hole.
Preferably, the powder filling hole is formed in the side wall of the upper cover.
Preferably, the speaker box further includes a conductive terminal for connecting the sounding unit with an external electrical signal, and the conductive terminal penetrates through the casing and is exposed out of the casing.
Preferably, the side wall of the upper cover is provided with an accommodating groove formed by sinking one end of the side wall close to the upper cover towards the lower cover plate, the conductive terminal extends out of the housing through the accommodating groove, the part of the conductive end located in the accommodating groove is flush with one side of the side wall of the upper cover close to the lower cover, and the lower cover is simultaneously pressed on the conductive terminal and the side wall of the upper cover to form sealing fixation.
Compared with the prior art, the loudspeaker box has the advantages that the upper cover and the lower cover of the shell are made of metal materials, the support made of plastic materials is fixed with the upper cover to support and fix the sounding monomer, in the structure, the plastic support is combined with the upper cover of metal, and the upper cover of metal is combined with the lower cover of metal, so that the loudspeaker box can be designed to be thinner than 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. In addition, the loudspeaker box is provided with the support fixing part and the support sound guide part, the support sound guide part is provided with the sound guide channel for communicating the front sound cavity with the outside, the side wall of the upper cover is provided with the sound outlet and the side wall extension part formed by extending the inner periphery of the side wall of the upper cover towards the direction of the sound production monomer, and the side wall extension part is arranged around the sound guide channel and is embedded and fixed on the support sound guide part, so that the steel-plastic bonding force between the upper cover and the support is enhanced, and the reliability of the loudspeaker box is high.
[ 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 bracket 3 located in the housing 1,
the shell 1 is made of metal material. The casing 1 includes an upper cover 11 and a lower cover 12 respectively covering opposite sides of the sound generating unit 2 along the vibration direction of the diaphragm 21.
The bracket 3 is made of plastic material and has a ring structure. The bracket 3 is fixed to the upper cover 11.
The sounding unit 2 is supported by the support 3. The support 3 encircles the week side of sound production monomer 2 and with sound production monomer 2 forms sealed fixed. The sound generating unit 2, the support 3 and the upper cover 11 jointly form a front sound cavity 101.
Wherein, the sound generating unit 2 comprises a diaphragm 21 for vibrating and generating sound. The diaphragm 21 is accommodated in the front acoustic cavity 101. The sound generating unit 2, the support 3, the upper cover 11 and the lower cover 12 together enclose a rear sound cavity 102.
In the structure, the upper cover 11, the lower cover 12 and the integrated configuration of support 3, because of upper cover 11 and lower cover 12 are made for metal material, support 3 that makes through plastic material is fixed with upper cover 11 for support fixed sound production monomer 2, under the prerequisite of guaranteeing casing 1's structural strength, it not only can be designed more thinly for full plastic housing structure, and equally effectual assembly sound production monomer 2, thereby the cavity volume in casing 1 of very big degree improvement, effectual increased sound production monomer 2 with the volume of the back sound chamber 10 that casing 1 encloses, and then improved loudspeaker box 100's acoustic performance, especially low frequency acoustic performance.
Specifically, the upper cover 11 includes an upper cover plate 111 disposed opposite to the lower cover 12, an upper cover sidewall 112 extending from the periphery of the upper cover plate 111 toward the upper cover 11 and fixedly connected to the lower cover 12, a sound outlet 10 disposed through the upper cover sidewall 112, and a sidewall extension 113 disposed from the upper cover sidewall 112 toward the direction near the sound generating unit 2 and surrounding the sound outlet 10.
In this embodiment, the lower cover 12 and the upper cover sidewall 112 of the upper cover 11 are welded to form a fixed connection, and the upper cover 11 and the lower cover 12 can be designed to be thinner and have more reliable fixing strength compared to the plastic structure in the prior art.
The support 3 comprises a support fixing part 31 positioned in the shell 1 and a support sound guide part 32 extending from the support fixing part 31 to the direction far away from the sound generating single body 2,
the holder fixing portion 31 is annular. The holder fixing portion 31 is fixed to the upper cover 111. In this embodiment, the upper cover 11 and the bracket 3 are integrally formed by injection molding.
One side of the sound generating unit 2, which is provided with the diaphragm 21, is supported by the bracket fixing portion 31 and spaced from the upper cover 11. That is, the side of the bracket fixing portion 31 away from the upper cover 11 surrounds the periphery of the sound generating unit 2 and forms a sealing fixation with the sound generating unit 2, so that the rear sound cavity 10 forms a closed space for improving the low-frequency acoustic performance.
Specifically, the holder fixing portion 31 includes an annular fixing portion body 311 fixed to the upper cover plate 111, and an annular fixing portion extending wall 312 extending from the periphery of the fixing portion body 311 in a direction from the peripheral side of the sounding unit 2 to the lower cover 12, wherein the fixing portion extending wall 312 forms a seal with the peripheral side of the sounding unit 2. This structure makes the support fixed part 31 and the sound generating unit 2 form a seal more firmly, and the reliability is higher.
The holder sound guide 32 extends from the holder fixing portion 31 in a direction away from the sound generating unit 2. The holder sound guide part 32 is provided with a sound guide channel 320 penetrating through the holder sound guide part, and the sound guide channel 320 connects the front sound cavity 101 with the outside through the sound outlet 10. The sidewall extension 113 is disposed around the sound guide channel 320 and fixed to the holder sound guide 32. That is, the sidewall extension portions 113 are inserted into the bracket sound-guiding portion 32 to be fixed, and this structure enhances the steel-plastic coupling force between the upper cover 11 and the bracket 3, thereby making the speaker box 100 highly reliable.
For further improving the low frequency acoustic performance of the speaker 100, the speaker box 100 further includes a breathable isolation member 4 located in the rear sound cavity 102, the breathable isolation member 4 is attached to the sound-producing single body 2 and separates the sound-producing single body 2 from the rear sound cavity 102, so that the rear sound cavity 102 can be filled with sound-absorbing material.
Specifically, the ventilation spacer 4 includes a spacer body 41 facing the lower cover 12 at a distance and attached to the sound generating unit 2, and a spacer extension 42 extending from the periphery of the spacer body 41 to the support 3 in a bending manner. The spacer extension 42 is spaced apart from the upper cover sidewall 112 and fixed to the bracket fixing portion 31. Ventilative separator 4 the support 3 upper cover 11 reaches lower cover 12 encloses into jointly and irritates whitewashed space, irritate whitewashed space and be used for filling sound absorbing material, for example inhale the sound granule, inhale the sound cotton etc..
In order to further improve the filling of the sound absorbing material in the powder filling space, the casing 1 is provided with a powder filling hole 13 penetrating through the casing, and the powder filling hole 13 communicates the rear sound cavity 102 with the outside. In this embodiment, the powder filling hole 13 is disposed on the upper cover sidewall 112. The speaker box 100 further includes a sealing cover 5 attached to the housing 1, and the sealing cover 5 completely covers the powder filling hole 13. The sealing cover 5 can seal the powder filling hole 13 after the sound absorbing material is filled into the powder filling space through the powder filling hole 13, so that the assembly of the loudspeaker box 100 is simpler and more reliable.
The speaker box 100 further includes a conductive terminal 6 for connecting the sound generating unit 2 with an external electrical signal. The conductive terminals 6 penetrate through the housing 1 and are partially exposed out of the housing 1.
In this embodiment, the upper cover sidewall 112 is provided with a receiving groove 110 formed by recessing one end of the upper cover sidewall 112 close to the upper cover 11 toward the lower cover 12, the conductive terminal 6 extends out of the housing 1 through the receiving groove 110, a portion of the conductive terminal 6 located in the receiving groove 110 is flush with one side of the upper cover sidewall 112 close to the lower cover 12, and the lower cover 12 is pressed on the conductive terminal 6 and the upper cover sidewall 112 to form a sealing fixation. The structure is convenient to assemble, and the assembly efficiency is improved.
In this embodiment, 4 the speaker box 100 further includes a buffer 7 attached to the upper cover sidewall 112. The buffer member 7 is provided with a through hole 70 penetrating therethrough. The through hole 70 communicates with the sound guide channel 320. The structure enables the bracket 3 and the buffer 7 to be structurally integrated, and the overall appearance is more attractive.
Compared with the prior art, the loudspeaker box has the advantages that the upper cover and the lower cover of the shell are made of metal materials, the support made of plastic materials is fixed with the upper cover to support and fix the sounding monomer, in the structure, the plastic support is combined with the upper cover of metal, and the upper cover of metal is combined with the lower cover of metal, so that the loudspeaker box can be designed to be thinner than 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. In addition, the loudspeaker box is provided with the support fixing part and the support sound guide part, the support sound guide part is provided with the sound guide channel for communicating the front sound cavity with the outside, the side wall of the upper cover is provided with the sound outlet and the side wall extension part formed by extending the inner periphery of the side wall of the upper cover towards the direction of the sound production monomer, and the side wall extension part is arranged around the sound guide channel and embedded and fixed on the support sound guide part, so that the steel-plastic bonding force between the upper cover and the support is enhanced, and the loudspeaker box is high in reliability
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 (10)

1. A loudspeaker box comprises a shell and a sounding monomer which is fixedly contained in the shell, wherein the sounding monomer comprises a vibrating diaphragm for vibrating and sounding;
the upper cover comprises an upper cover plate arranged opposite to the lower cover, an upper cover side wall bent and extended from the periphery of the upper cover plate to the direction of the lower cover and fixedly connected with the lower cover, a sound outlet penetrating through the upper cover side wall and a side wall extension part extending from the upper cover side wall to the direction close to the sound generating monomer and surrounding the sound outlet;
the loudspeaker box further comprises a support made of a plastic material, the support comprises an annular support fixing part and a support sound guide part, the annular support fixing part is located in the shell and fixed on the upper cover plate, the support sound guide part extends from the support fixing part to the direction far away from the sound generating monomer, one side, provided with the vibrating diaphragm, of the sound generating monomer is supported on the support fixing part and is arranged at an interval with the upper cover, one side, far away from the upper cover, of the support fixing part surrounds the periphery of the sound generating monomer and forms sealing fixation with the sound generating monomer, the support and the upper cover form a front sound cavity in a surrounding mode, and the sound generating monomer, the support, the upper cover and the lower cover form a rear sound cavity in a surrounding mode; the sound guide part of the bracket is provided with a sound guide channel penetrating through the sound guide part, and the sound guide channel connects the front sound cavity with the outside through the sound outlet; the side wall extension part is arranged around the sound guide channel and is embedded and fixed on the support sound guide part.
2. The speaker box according to claim 1, wherein the holder fixing portion includes a fixing portion body having a ring shape fixed to the upper cover plate, and a fixing portion extending wall having a ring shape and extending from a peripheral edge of the fixing portion body in a direction of the lower cover while being bent in a circumferential direction of the sounding unit, the fixing portion extending wall forming a seal with the circumferential side of the sounding unit.
3. A loudspeaker enclosure according to claim 1, wherein the cover and the support are integrally injection moulded.
4. The speaker box of claim 1, further comprising a buffer member attached to the sidewall of the top cover, the buffer member having a through hole extending therethrough, the through hole communicating with the sound guide channel.
5. 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.
6. The loudspeaker box according to claim 5, wherein the air-permeable partition comprises a partition body which is opposite to the lower cover at a distance and is attached to the sounding single body, and a partition extending part which is bent and extends from the periphery of the partition body to the direction of the support; the isolating piece extending part and the side wall of the upper cover are arranged at intervals and fixed on the bracket fixing part; the breathable partition, the support, the upper cover and the lower cover jointly enclose a powder filling space, and the powder filling space is used for filling sound-absorbing materials.
7. The loudspeaker enclosure of claim 5 wherein the housing has a powder fill hole therethrough, the powder fill hole communicating with the rear acoustic chamber; the loudspeaker box also comprises a sealing cover attached to the shell, and the sealing cover completely covers the powder filling hole.
8. The speaker box as claimed in claim 7, wherein the powder filling hole is provided in the sidewall of the upper cover.
9. The speaker box of claim 2, further comprising a conductive terminal for connecting the sound generating unit with an external electrical signal, wherein the conductive terminal penetrates through the housing and is exposed out of the housing.
10. The speaker box as claimed in claim 9, wherein the side wall of the top cover has a receiving slot formed by recessing an end of the side wall of the top cover toward the bottom cover, the conductive terminal extends out of the housing through the receiving slot, a portion of the conductive terminal located in the receiving slot is flush with a side of the side wall of the top cover close to the bottom cover, and the bottom cover is pressed on the conductive terminal and the side wall of the top cover to form a sealed fixing.
CN202010880923.6A 2020-08-27 2020-08-27 Loudspeaker box Active CN112073852B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010880923.6A CN112073852B (en) 2020-08-27 2020-08-27 Loudspeaker box

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202010880923.6A CN112073852B (en) 2020-08-27 2020-08-27 Loudspeaker box
PCT/CN2020/124119 WO2022041455A1 (en) 2020-08-27 2020-10-27 Loudspeaker box

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CN112073852A CN112073852A (en) 2020-12-11
CN112073852B true CN112073852B (en) 2021-11-12

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WO (1) WO2022041455A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112637753A (en) * 2020-12-02 2021-04-09 益阳市信维声学科技有限公司 Preparation method of loudspeaker module
CN112468910B (en) * 2020-12-18 2022-04-26 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
CN112468906B (en) * 2020-12-18 2022-05-03 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
CN112468911A (en) * 2020-12-18 2021-03-09 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
CN112616101A (en) * 2020-12-30 2021-04-06 歌尔股份有限公司 Speaker module and electronic equipment

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN205754832U (en) * 2016-04-29 2016-11-30 歌尔股份有限公司 Loudspeaker housing and speaker module
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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9197961B2 (en) * 2012-09-14 2015-11-24 Htc Corporation Portable electronic device with internal speaker
CN107889035B (en) * 2017-10-23 2020-07-10 上海润欣科技股份有限公司 Loudspeaker box
CN109495826A (en) * 2018-12-31 2019-03-19 瑞声声学科技(深圳)有限公司 Loudspeaker enclosure

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN205754832U (en) * 2016-04-29 2016-11-30 歌尔股份有限公司 Loudspeaker housing and speaker module
CN211321501U (en) * 2020-01-09 2020-08-21 瑞声科技(新加坡)有限公司 Loudspeaker box

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