CN210093440U - Loudspeaker box - Google Patents

Loudspeaker box Download PDF

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Publication number
CN210093440U
CN210093440U CN201921033330.5U CN201921033330U CN210093440U CN 210093440 U CN210093440 U CN 210093440U CN 201921033330 U CN201921033330 U CN 201921033330U CN 210093440 U CN210093440 U CN 210093440U
Authority
CN
China
Prior art keywords
steel sheet
sound
upper cover
lower shell
hole
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.)
Expired - Fee Related
Application number
CN201921033330.5U
Other languages
Chinese (zh)
Inventor
李科
印兆宇
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 Technologies Pte Ltd
Original Assignee
AAC Technologies Pte 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
Priority to PCT/CN2019/094035 priority Critical patent/WO2021000135A1/en
Priority to CNPCT/CN2019/094035 priority
Application filed by AAC Technologies Pte Ltd filed Critical AAC Technologies Pte Ltd
Application granted granted Critical
Publication of CN210093440U publication Critical patent/CN210093440U/en
Expired - Fee Related 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

Abstract

The utility model provides a loudspeaker box, including upper cover, inferior valve and sound production monomer, the inferior valve include steel sheet and ring locate the outward flange of steel sheet and with steel sheet fixed connection's inferior valve body, inferior valve body is fixed with the upper cover, the sound production monomer including the sound production side that is close to the upper cover and with the dorsal part that the sound production side carried on the back mutually, the steel sheet runs through and has seted up the through hole, the steel sheet is located through the exposure of through hole at least part to the first turn-ups that is close to the upper cover direction bending extension of one side at least part that the through hole was kept away from including encircleing the plane portion of through hole to the steel sheet, first turn-ups and the integrative injection moulding of inferior valve body, plane portion forms with inferior valve body cooperation. Compared with the prior art, the utility model discloses a sound production monomer edge can reduce to 0.7mm with the interval of inferior valve body in the speaker box, has greatly reduced the whole volume of speaker box.

Description

Loudspeaker box
[ technical field ] A method for producing a semiconductor device
The utility model relates to an acoustoelectric conversion technical field especially relates to a loudspeaker box.
[ background of the invention ]
In recent years, science and technology have been rapidly developed, audio devices have been increasingly popularized, and among entertainment modes, high-quality music enjoyment has been gradually popularized in many people, so that speaker boxes for playing audio are widely applied to current smart mobile devices, and miniaturization of speaker boxes has become a mainstream demand in order to meet internal space arrangement of smart mobile devices.
The loudspeaker box in the related art has an assembly mode that a magnetic yoke leaks: the lower casing of the loudspeaker comprises a lower casing body and a steel sheet, wherein a through hole is formed in the steel sheet, a magnetic yoke of a sounding monomer penetrates through the through hole to be exposed outside the steel sheet, the steel sheet comprises a steel sheet body, a transition part and a groove sinking part, a flanging is arranged at the outer edge of the steel sheet body, the flanging and the lower casing are integrally molded through injection, and the groove sinking part is filled with glue to realize sealing. In the design, in order to meet the forming of the steel sheet, the distance between the edge of the sounding monomer and the lower shell needs to be kept above 1.4mm, and when the distance is less than 1.4mm, if the length of a straight line segment of the groove sinking part is reduced, the groove sinking characteristic of the steel sheet cannot be formed; if the length of the straight line section of the steel sheet body is reduced, the distance between the sinking groove part and the flanging is too short, so that the mold cannot be realized, and the development requirement of miniaturization of the loudspeaker box is not facilitated.
Therefore, there is a need to provide a new speaker box to solve the above technical problems.
[ Utility model ] content
An object of the utility model is to provide a simple structure, sound production monomer edge and the less speaker box of inferior valve body interval.
The utility model provides a loudspeaker box, including the upper cover, with the upper cover assembles the inferior valve that forms accommodating space and accommodates in accommodating space's sound production monomer, the inferior valve include the steel sheet and encircle locate the outward flange of steel sheet and with steel sheet fixed connection's inferior valve body, inferior valve body with the upper cover is fixed, sound production monomer is including being close to the sound production side of upper cover and the dorsal part that is the back of the side of carrying on the back with the sound production side, the steel sheet runs through and has seted up the through hole, the dorsal part is located through the at least partial exposure of through hole the steel sheet, the steel sheet includes the plane portion that encircles the through hole and from one side that plane portion kept away from the through hole is at least partly to being close to the first turn-ups of upper cover direction bending extension, first turn-ups with inferior valve body integrated injection moulding, plane portion with inferior valve body cooperation forms the heavy groove around the through hole, and the sinking groove is filled with sealant.
Preferably, plane portion keeps away from the edge of through hole includes first side and second side, first turn-ups warp first side is buckled and is extended, the second side with first side end to end encloses into cyclic annularly, the steel sheet still includes certainly second side is towards keeping away from the direction of upper cover is buckled and is extended transition portion and is connected transition portion with steel sheet body between the inferior valve body.
Preferably, the minimum distance between the first side and the lower shell body is smaller than the minimum distance between the second side and the lower shell body.
Preferably, the steel sheet body, the transition portion, and the planar portion are integrally formed.
Preferably, one side of the steel sheet body, which is far away from the transition part, is bent towards the direction close to the upper cover to form a second flanging, and the second flanging and the lower shell body are integrally formed in an injection molding mode.
Preferably, the sound production monomer including be used for vibrating the vibrating diaphragm of sound production and with the yoke that the vibrating diaphragm set up relatively, the upper cover include with the roof that the relative interval of vibrating diaphragm set up, certainly the edge of roof is to being close to lateral wall that the extension was buckled to inferior valve direction, certainly the middle zone of roof is to being close to the vibrating diaphragm direction extends and bears the free support wall of sound production, the inferior valve lid is located on the lateral wall.
Preferably, the yoke passes through the through hole and is exposed outside the steel sheet.
Preferably, the edge of the magnet yoke close to the steel sheet is at least partially sunken to form a yielding groove towards the direction of the upper cover, the yielding groove is communicated with the sinking groove, and the sealant extends into the yielding groove.
Preferably, the upper cover and the diaphragm are arranged at an interval to form a front sound cavity, and the upper cover, the lower shell and the sound generating monomer are matched together to form a rear cavity.
Preferably, the side wall is provided with a sound outlet communicated with the outside, the speaker box further comprises a sound guide channel communicated with the sound outlet and the front sound cavity, and the front sound cavity and the sound guide channel jointly form the front cavity of the speaker box and are used for conducting sound to the outside.
Compared with the prior art, the utility model provides a loudspeaker box, the through hole has been seted up in the steel sheet runs through. The steel sheet still including encircleing the plane portion of through hole and certainly plane portion is kept away from one side of through hole is at least partial to being close to the first turn-ups that the upper cover direction was buckled and is extended, first turn-ups with the integrative injection moulding of inferior valve body, plane portion with inferior valve body cooperation forms and centers on the heavy groove of through hole, sealed glue is filled in the heavy groove, has saved the structure of steel sheet body and transition portion among the correlation technique, makes the free edge of sound production with the interval of the lateral wall of upper cover can reduce, satisfies the development demand that the speaker box is microminiaturized.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below, and 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 another angular schematic view of the loudspeaker enclosure of FIG. 1;
FIG. 3 is an exploded view of the speaker cabinet of FIG. 2;
FIG. 4 is a front view of the steel sheet shown in FIG. 2;
FIG. 5 is a cross-sectional view of the loudspeaker enclosure shown in FIG. 1 taken along line IV-IV;
FIG. 6 is a cross-sectional view of the loudspeaker enclosure shown in FIG. 1 taken along line V-V;
FIG. 7 is an enlarged view of area VII shown in FIG. 6;
FIG. 8 is an enlarged view of the area VIII shown in FIG. 6;
fig. 9 is a schematic structural diagram of a speaker box according to another embodiment of the present invention.
[ detailed description ] embodiments
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1-5, the present invention provides a speaker box 100, which includes an upper cover 1, a lower shell 3 and a sound generating unit 5 having a diaphragm 53. The upper cover 1 and the lower shell 3 are matched to form an accommodating space, and the sounding unit 5 is accommodated in the accommodating space. The sound generating unit 5 and the vibrating diaphragm 53 are arranged at intervals to form a front sound cavity 10, and the sound generating unit 5, the upper cover 1 and the lower shell 3 are matched together to form a rear cavity 30.
The upper cover 1 includes a top wall 11 opposite to the diaphragm 53 and spaced apart from the top wall, a side wall 13 extending from the edge of the top wall 11 to the direction close to the lower case 3, and a support wall 15 extending from the middle area of the top wall 11 to the direction close to the diaphragm 53 and supporting the sound generating unit 5.
The roof 11, lateral wall 13 and support wall 15 integrated into one piece, sound outlet 130 with external intercommunication is seted up to lateral wall 13, speaker 100 still includes the intercommunication sound outlet 130 with the sound conduction passageway 50 in preceding sound chamber 10, preceding sound chamber 10 with sound conduction passageway 50 constitutes the front chamber 70 of speaker box 100 jointly for conduct sound to the external world.
Inferior valve 3 with upper cover 1 is fixed, and is concrete, inferior valve 3 includes steel sheet 31 and ring locate the outward flange of steel sheet 31 and with inferior valve body 33 that steel sheet 31 is connected, inferior valve body 33 lid is located on lateral wall 13, can understand, inferior valve body 33 is ring structure, its shape with lateral wall 13's profile shape phase-match.
Further, the steel piece 31 has a through hole 310 formed therethrough. The steel sheet 31 further comprises a plane portion 311 surrounding the through hole 310 and a first flanging 312 which is bent and extended from one side of the plane portion 311 far away from the through hole 310 to the direction close to the upper cover 1, wherein the first flanging 312 and the lower shell body 33 are integrally formed in an injection molding mode.
The plane portion 311 and the lower shell body 33 are matched to form a sinking groove 313 surrounding the through hole 310, a sealant is filled in the sinking groove 313, and the sealant is used for sealing the rear cavity 30, so that the influence of air leakage of the rear cavity 30 on the acoustic performance of the loudspeaker box 100 is avoided.
Plane portion 311 is kept away from the edge of through hole 310 includes first side 3111 and second side 3112, first turn-ups 312 warp first side 3111 bends and extends, second side 3112 with first side 3111 encloses into cyclic annular end to end, first side 3111 with minimum distance between inferior valve body 33 is less than second side 3112 with minimum distance between inferior valve body 33.
The steel sheet 31 further includes a transition portion 314 extending from the second side edge 3112 towards a direction away from the upper cover 1, and a steel sheet body 315 connected between the transition portion 314 and the lower shell body 33, wherein the steel sheet body 315, the transition portion 315 and the plane portion 311 are integrally formed.
One side of the steel sheet body 315, which is far away from the transition part 314, is bent towards the direction close to the upper cover 1 to form a second flanging 316, and the second flanging 316 and the lower shell body 33 are integrally injection-molded.
The sound production monomer 5 is including being close to sound production side 51 of upper cover 1 and with dorsal side 52 that sound production side 51 carried on the back mutually, sound production side 51 is equipped with the vibrating diaphragm 53 that is used for the vibration sound production, dorsal side 52 be equipped with the relative yoke 54 of vibrating diaphragm 53, yoke 54 passes through hole 310 exposes and locates outside the steel sheet 31, need not additionally occupy the space of back chamber 30, simultaneously because the intensity of steel sheet 31 is big, makes the thickness of steel sheet 31 can be done for a short time, has further increased the volume of back chamber 30 improves loudspeaker box 100's acoustic performance.
Furthermore, at least a part of the edge of the yoke 54 close to the steel sheet 31 is recessed towards the upper cover 1 to form a receding groove 540, the receding groove 540 is communicated with the sunken groove 313, and the sealant extends into the receding groove 540.
Referring to fig. 6 and 7, in order to ensure the formation of the structure of the sinking groove 313, the planar portion 311 needs to ensure a certain linear length; meanwhile, in consideration of the design of the steel sheet 31 forming die, the steel sheet body 315 also needs to ensure a certain linear length, so that the distance d between the edge of the sound generating unit 5 and the lower shell body 331Is required to satisfy d1≥1.4mm。
Referring to fig. 6 and 8, the planar portion 311 is directly bent and extended toward the upper cover 1 to form a first flange 312, so as to omit the straight line section of the steel plate body 315 and the structure of the transition portion 315, and thus the distance d between the edge of the sound generating unit 5 and the lower shell body 33 is reduced2Can reduce to 0.7mm, greatly reduce the requirement to the installation distance, make simultaneously the structure of steel sheet 31 is easily shaping to practice thrift the preparation material of steel sheet 31, reduced the cost.
It can be understood that, in the present embodiment, only a portion of the planar portion 311 is bent to form the first flange 312, please refer to fig. 9, in other manners, the entire outer edge of the planar portion 311 may be bent to form the first flange 312, and the first side 3111 and the second side 3312 are both bent and extended toward the upper cover 1 to form the first flange 312, the first flange 312 and the lower shell body 33 are integrally injection-molded, at this time, a distance between any position of the edge of the sound generating unit 5 and the lower shell body 33 may be reduced to 0.7mm, and the overall volume of the speaker box 100 may be greatly reduced.
Compared with the related art, in the speaker box 100 provided by the present invention, the steel sheet 31 penetrates through the through hole 310. Steel sheet 31 still including encircle the plane portion 311 of through hole 310 and certainly plane portion 311 is kept away from one side of through hole 310 is at least partly to being close to the first turn-ups 312 that upper cover 1 direction was buckled and is extended, first turn-ups 312 with lower casing body 33 integrated injection moulding, plane portion 311 with lower casing body 33 cooperation forms and centers on the heavy groove 313 of through hole 310, fill sealant in heavy groove 313, saved the structure of steel sheet body 315 and transition portion 315 among the correlation technique, make the edge of sound production monomer 5 with the interval of the lateral wall 13 of upper cover 1 can reduce, satisfies the development demand of speaker box microminiaturization.
The above embodiments of the present invention are only described, and it should be noted that, for those skilled in the art, modifications can be made without departing from the inventive concept, but these all fall into the protection scope of the present invention.

Claims (10)

1. A loudspeaker box comprises an upper cover, a lower shell and a sound production monomer, wherein the upper cover is assembled to form an accommodating space, the sound production monomer is accommodated in the accommodating space, the lower shell comprises a steel sheet and a ring, the outer edge of the steel sheet is arranged on the lower shell, the lower shell is fixedly connected with the steel sheet, the lower shell is fixed with the upper cover, the sound production monomer comprises a sound production side close to the upper cover and a back side back to the sound production side, a through hole is formed in the steel sheet in a penetrating mode, the back side is exposed on the steel sheet at least in part through the through hole, the steel sheet comprises a plane portion surrounding the through hole and a first flanging, the first flanging is bent and extended from the plane portion to the direction close to the upper cover, the first flanging is integrally injection-molded with the lower shell, and the plane portion is matched with the lower shell to form a sunk groove surrounding the through hole, and the sinking groove is filled with sealant.
2. The loudspeaker box of claim 1, wherein the edge of the planar portion away from the through hole includes a first side and a second side, the first flange is bent and extended via the first side, the second side and the first side are connected end to form a ring, the steel sheet further includes a transition portion bent and extended from the second side in a direction away from the upper cover, and a steel sheet body connected between the transition portion and the lower shell body.
3. A loudspeaker enclosure as claimed in claim 2, in which the minimum distance between the first side and the lower enclosure is less than the minimum distance between the second side and the lower enclosure.
4. A loudspeaker enclosure according to claim 2, wherein the steel sheet body, the transition portion and the planar portion are integrally formed.
5. The loudspeaker box of claim 2, wherein one side of the steel sheet body far away from the transition part is bent towards the direction close to the upper cover to form a second flanging, and the second flanging and the lower shell body are integrally formed in an injection molding mode.
6. The loudspeaker box of claim 1, wherein the sound-generating side of the sound-generating unit is provided with a diaphragm for vibrating sound, the back side of the sound-generating unit is provided with a magnetic yoke opposite to the diaphragm, the upper cover comprises a top wall opposite to the diaphragm, a side wall bent and extended from the edge of the top wall to the direction close to the lower shell, and a supporting wall extending from the middle area of the top wall to the direction close to the diaphragm and bearing the sound-generating unit, and the lower cover is arranged on the side wall.
7. The speaker cabinet as claimed in claim 6, wherein the yoke is exposed to the outside of the steel sheet through the through hole.
8. The speaker box as claimed in claim 7, wherein the edge of the yoke near the steel sheet is at least partially recessed toward the upper cover to form a relief groove, the relief groove is communicated with the recessed groove, and the sealant extends into the relief groove.
9. The loudspeaker box of claim 7, wherein the upper cover and the diaphragm are spaced apart to form a front acoustic cavity, and the upper cover, the lower shell and the sound generating unit cooperate together to define a rear cavity.
10. The speaker box according to claim 9, wherein the side wall is opened with a sound outlet communicating with the outside, the speaker box further comprises a sound guide channel communicating the sound outlet and the front sound cavity, and the front sound cavity and the sound guide channel jointly constitute the front cavity of the speaker box for transmitting sound to the outside.
CN201921033330.5U 2019-06-30 2019-07-02 Loudspeaker box Expired - Fee Related CN210093440U (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/CN2019/094035 WO2021000135A1 (en) 2019-06-30 2019-06-30 Speaker box
CNPCT/CN2019/094035 2019-06-30

Publications (1)

Publication Number Publication Date
CN210093440U true CN210093440U (en) 2020-02-18

Family

ID=69484738

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201921033330.5U Expired - Fee Related CN210093440U (en) 2019-06-30 2019-07-02 Loudspeaker box

Country Status (2)

Country Link
CN (1) CN210093440U (en)
WO (1) WO2021000135A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022041454A1 (en) * 2020-08-27 2022-03-03 瑞声声学科技(深圳)有限公司 Loudspeaker box
WO2022126788A1 (en) * 2020-12-18 2022-06-23 瑞声声学科技(深圳)有限公司 Loudspeaker box and assembling process therefor

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2414620A (en) * 2004-05-24 2005-11-30 Blast Loudspeakers Ltd Loudspeaker with opposing drivers for vibration cancelling
CN204498302U (en) * 2015-03-31 2015-07-22 歌尔声学股份有限公司 Loud speaker module
CN207869310U (en) * 2018-01-27 2018-09-14 瑞声科技(新加坡)有限公司 Loudspeaker enclosure

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022041454A1 (en) * 2020-08-27 2022-03-03 瑞声声学科技(深圳)有限公司 Loudspeaker box
WO2022126788A1 (en) * 2020-12-18 2022-06-23 瑞声声学科技(深圳)有限公司 Loudspeaker box and assembling process therefor

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GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20200218

Termination date: 20210702

CF01 Termination of patent right due to non-payment of annual fee