CN105848068A - Loudspeaker module and mobile terminal - Google Patents
Loudspeaker module and mobile terminal Download PDFInfo
- Publication number
- CN105848068A CN105848068A CN201610302196.9A CN201610302196A CN105848068A CN 105848068 A CN105848068 A CN 105848068A CN 201610302196 A CN201610302196 A CN 201610302196A CN 105848068 A CN105848068 A CN 105848068A
- Authority
- CN
- China
- Prior art keywords
- metal member
- speaker module
- resilient metal
- groove
- copper region
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/06—Loudspeakers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2400/00—Loudspeakers
- H04R2400/11—Aspects regarding the frame of loudspeaker transducers
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Telephone Set Structure (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
Abstract
The invention discloses a loudspeaker module and a mobile terminal. The loudspeaker module comprises a housing, a loudspeaker single body, a flexible circuit board and a pair of elastic metal pieces, wherein the loudspeaker single body, the flexible circuit board and the elastic metal pieces are disposed in the housing; the loudspeaker single body comprises magnetic steel disposed at the bottom, and the magnetic steel is provided with a projection; the flexible circuit board is provided with a through groove, the projection is disposed in the through groove, and the inner side wall of the through groove is provided with a copper-exposed area; and the pair of elastic metal pieces are clamped between the side wall of the projection and the copper-exposed area for electrical connection between the flexible circuit and the magnetic steel. The loudspeaker module can greatly reduces the rear-back height of the magnetic steel, reduces the overall thickness of the loudspeaker module and facilitates thinning.
Description
Technical field
The present invention relates to speaker field, particularly relate to a kind of speaker module and mobile terminal.
Background technology
In recent years, along with the fast development of mobile communication technology, consumer is increasingly using with voice
The mobile communication equipment of function, such as portable phone, handheld device, laptop computer, multimedia
Device and other equipment that can be communicated by public or dedicated communications network.Speaker module conduct
The voice playing device of mobile communication equipment, its design quality directly affects the speech performance of Related product.
Speaker module is a kind of energy transducer, can convert electrical energy into radiating acoustic energy and go out, be electroacoustic
Parts indispensable in product.As it is shown in figure 1, existing speaker module includes housing 100, speaker
Monomer 200 and flexible PCB 300 (Flexible Printed Circuit board, FPC), loudspeaker monomer
200 and flexible PCB 300 be contained in housing 100, the bottom of loudspeaker monomer 200 is provided with magnet steel 201,
The back side of magnet steel 201 realizes conducting by electroconductive elastic sheet 400 and flexible PCB 300.This structure
Speaker module must guarantee that the back height of magnet steel 201 is at least above the working depth of electroconductive elastic sheet 400, from
And speaker module thickness be there are certain requirements, it is unfavorable for the slimming of speaker module.
Summary of the invention
It is an object of the invention to provide a kind of speaker module and mobile terminal, to solve in existing mobile phone
Speaker module thickness is thicker, it is difficult to adapt to the technical problem of thinning tendency.
For solving above-mentioned technical problem, embodiment of the present invention offer techniques below scheme:
A kind of speaker module, comprising:
Housing, loudspeaker monomer, flexible PCB and resilient metal member, described loudspeaker monomer, flexible electrical
Road plate and resilient metal member are positioned at described housing；Described loudspeaker monomer includes the magnet steel being positioned at bottom, institute
State magnet steel and be provided with protuberance；Offering groove on described flexible PCB, described protuberance is positioned in described groove,
The medial wall of described groove is provided with dew copper region；Described resilient metal member is provided with a pair, and it is folded in described
Between sidewall and the described dew copper region of protuberance, for described flexible PCB is electrically connected with described magnet steel.
Further, the medial wall of described groove is provided with location division, and described location division is used for preventing described bullet
Property metalwork slips from described dew copper region.
Further, described location division is hole, location, and described dew copper region includes hole, described location, described bullet
Property metalwork is power spring, and described power spring is positioned in hole, described location.
Further, described location division is detent, and the region at the diapire place of described detent is institute
State dew copper region；Described resilient metal member is electroconductive elastic sheet, and one end of described electroconductive elastic sheet is resisted against the described end
Wall.
Further, the one end of described electroconductive elastic sheet has been bent to form contact on the direction along described diapire
Portion, described diapire is close on the surface of described contact site.
Further, described location division is positioning convex column, and described dew copper region includes described positioning convex column；Institute
Stating resilient metal member is power spring, and one end of described power spring is set in described positioning convex column.
Further, described location division is positioning convex strip, and described positioning convex strip is positioned at the medial wall of described groove
Top, described dew copper region is positioned at the underface of described positioning convex strip, and one end of described resilient metal member is supported
Peak at described positioning convex strip.
Further, described resilient metal member is electroconductive elastic sheet or power spring.
Further, described groove is square, rectangle, circular or oval.
For solving above-mentioned technical problem, the embodiment of the present invention also provides for techniques below scheme:
A kind of mobile terminal, described mobile terminal includes the speaker module described in above-mentioned any one.
Speaker module of the present invention and mobile terminal, by offering groove on flexible PCB, and
The medial wall of groove is provided with dew copper region, meanwhile, by being positioned at by the protuberance of magnet steel in loudspeaker monomer
In this groove, resilient metal member is clamped between the sidewall of this protuberance and dew copper region, magnetic can be substantially reduced
The back height of steel, thus reduce the integral thickness of speaker module, beneficially slimming.
Accompanying drawing explanation
Below in conjunction with the accompanying drawings, by the detailed description of the invention of the present invention is described in detail, the skill of the present invention will be made
Art scheme and other beneficial effect are apparent.
Fig. 1 is the cross-sectional schematic of the speaker module that prior art provides.
The cross-sectional schematic of the speaker module that Fig. 2 provides for the embodiment of the present invention.
In another speaker module that Fig. 3 provides for the embodiment of the present invention, electroconductive elastic sheet is in flexible PCB
Scheme of installation.
The cross-sectional schematic of another speaker module that Fig. 4 provides for the embodiment of the present invention.
The cross-sectional schematic of another speaker module that Fig. 5 provides for the embodiment of the present invention.
Detailed description of the invention
For making the technical problem to be solved, technical scheme and beneficial effect clearer, with
Lower combination drawings and Examples, are further elaborated to the present invention.Should be appreciated that described herein
Specific embodiment only in order to explain the present invention, be not intended to limit the present invention.
Referring to Fig. 2, Fig. 2 and specifically describe the speaker module that the embodiment of the present invention provides, it includes shell
Body 1, loudspeaker monomer 2, flexible PCB 3 and resilient metal member 4, this loudspeaker monomer 2, flexible electrical
Road plate 3 and resilient metal member 4 are positioned at this housing 1.This loudspeaker monomer 2 includes the magnet steel being positioned at bottom
(not shown), this magnet steel is provided with protuberance 21.Offering groove 31 on this flexible PCB 3, this is convex
Portion 21 is positioned in this groove 31, and the medial wall of this groove 31 is provided with dew copper region (not shown).
This resilient metal member 4 is provided with a pair, and it is folded between the sidewall of this protuberance 21 and this dew copper region, is used for
This flexible PCB 3 is electrically connected with this magnet steel.
Concrete, this housing 1 is hollow cavity, and its roof offers out acoustic aperture 11.This protuberance 21
Bottom surface can cement on this flexible PCB 3 by the way of a glue or double faced adhesive tape, it is to avoid phase between the two
The most mobile.This speaker module can also include sealing member 5, and this sealing member 5 is arranged on this and goes out at acoustic aperture 11,
For ensureing the sealing between this loudspeaker monomer 2 and housing 1.This loudspeaker monomer 2 also includes vibrating diaphragm
With voice coil loudspeaker voice coil (in figure the most not shown), this housing 1 is separated into front sound chamber separated from one another and rear sound by this vibrating diaphragm
Chamber, this rear sound chamber is closed cavity.During work, the ac signal on flexible PCB 3 passes through Lu Tong district
Territory is delivered to resilient metal member 4, then is delivered to voice coil loudspeaker voice coil (not shown) by resilient metal member 4 via magnet steel,
Making voice coil loudspeaker voice coil produce alternating magnetic field in magnetic gap, the magnetic effect of this alternating magnetic field forces voice coil loudspeaker voice coil to move up and down, from
And driving diaphragm oscillations to produce sound wave, this sound wave is sent to the external world via front sound chamber, thus is heard by human ear.
The sidewall of protuberance 21 and the medial wall of groove 31 it is arranged on due to the resilient metal member 4 in the present embodiment
Between, therefore the height of protuberance 21 only need to be more than the thickness of flexible PCB 3, and resilient metal member 4
Working depth unrelated, this setup can be substantially reduced the height of protuberance 21, thus reduces speaker mould
The integral thickness of group, the beneficially slimming of speaker module.
Preferably, the shape of this groove 31 can according to the actual requirements depending on, such as can be by this groove 31
Shape be designed to consistent with the shape of this protuberance 21.It is also preferred that the left the shape of this groove 31 can be square
Shape, rectangle, circular or oval, and between the sidewall of the medial wall of this groove 31 and this protuberance 21
There is certain interval.Under normal circumstances, this clearance distance is the active length of resilient metal member 4.
Two ends in view of this resilient metal member 4 are not fixed on this protuberance 21 or dew copper region, if therefore
The when that this speaker module being by clashing into, this resilient metal member 4 is easy to slip from dew copper region, thus
The electrical connection between flexible PCB 3 and magnet steel is caused to be disconnected.For avoiding the generation of above-mentioned phenomenon, this leads to
Can be provided with location division on the medial wall of groove 31, this location division is used for preventing this resilient metal member 4 from Lu Tong district
Territory slips.It is also preferred that the left the structure of this location division should according to the actual requirements depending on, such as can be hole, groove,
Projection or fin etc., specifically can refer to Fig. 2 to Fig. 5.
Preferably, as in figure 2 it is shown, this location division can be hole 311, location, this dew copper region includes that this is fixed
Hole 311, position, now, this resilient metal member 4 is power spring, and this power spring is positioned at this hole, location 311
In.Concrete, this hole, location 311 is blind hole, and for avoiding this power spring to take off from this hole, location 311
Fall, depending on the aperture in this hole, location 311 and the degree of depth need to be according to practical situations.
Preferably, as it is shown on figure 3, this location division can also be detent 312, this detent 312
The region at diapire place be this dew copper region, now, this resilient metal member 4 is electroconductive elastic sheet, this conduction
One end of shell fragment is resisted against this diapire.Concrete, for increasing this resilient metal member 4 and contacting of revealing copper region
Area, to guarantee to electrically connect between flexible PCB 3 and magnet steel well, the one end of this electroconductive elastic sheet is on edge
Being bent to form contact site 41 on the direction of this diapire, this detent 312 is close on the surface of this contact site 41
Diapire.
Preferably, as shown in Figure 4, this location division can also be positioning convex column 313, and this dew copper region includes
This positioning convex column 313, now, this resilient metal member 4 is power spring, and one end of this power spring is sheathed
In this positioning convex column 313.Concrete, for avoiding contacting not between this resilient metal member 4 with dew copper region
Good, this dew copper region can be the border circular areas centered by this positioning convex column 313, the half of this border circular areas
Depending on footpath can be according to practical situation.
Preferably, as it is shown in figure 5, this location division can also be positioning convex strip 314, this positioning convex strip 314
Being positioned at the top of the medial wall of this groove 31, this dew copper region is positioned at the underface of this positioning convex strip 314, should
One end of resilient metal member 4 is resisted against this positioning convex strip 314.Concrete, this resilient metal member 4 can be
Power spring or electroconductive elastic sheet.This positioning convex strip 314 is generally horizontally disposed, and its length should be greater than this conduction bullet
The external diameter of spring or the width of this electroconductive elastic sheet, so, just can avoid this power spring or electroconductive elastic sheet not
Easily slip from this positioning convex strip 314, it is ensured that the electrical connection between this flexible PCB 3 and magnet steel.
In the present embodiment, this flexible PCB 3 mainly includes that copper clad laminate, Copper Foil and protecting film are (in figure
The most not shown), its manufacturing process approximately as: first, the Copper Foil overlayed on copper clad laminate is performed etching
Etc. PROCESS FOR TREATMENT to obtain the circuit needed, hole protecting film on request to expose corresponding weldering simultaneously
Dish, cleaned after, utilize rolling process to combine copper clad laminate and protecting film, afterwards, in the weldering exposed
Disc portion electrogilding or stannum etc. are protected.It should be noted that due in this groove 31 in the present embodiment
Sidewall is provided with dew copper region, therefore when holing protecting film, needs this dew copper region on protecting film
Corresponding place carries out boring process, to form this dew copper region.
Additionally, the embodiment of the present invention also provides for a kind of mobile terminal, this mobile terminal include above-mentioned any one
Speaker module.Preferably, this mobile terminal can be the electricity such as mobile phone, panel computer and notebook computer
Sub-product.
From the foregoing, the speaker module described in the embodiment of the present invention and mobile terminal, by flexible electrical
Offer groove 31 on road plate 3, and on the medial wall of groove 31, be provided with dew copper region, meanwhile, by inciting somebody to action
During the protuberance 21 of magnet steel is positioned at this groove 31 in loudspeaker monomer 2, resilient metal member 4 is clamped on this convex
Between sidewall and the dew copper region in portion 21, the back height of magnet steel can be substantially reduced, thus reduce speaker mould
The integral thickness of group, beneficially slimming.
A kind of speaker module provided the embodiment of the present invention above and mobile terminal have carried out detailed Jie
Continuing, principle and the embodiment of the present invention are set forth by specific case used herein, above enforcement
The explanation of example is only intended to help to understand method and the core concept thereof of the present invention；Simultaneously for this area
Technical staff, according to the thought of the present invention, the most all will change,
In sum, this specification content should not be construed as limitation of the present invention.
Claims (10)
1. a speaker module, it is characterised in that including: housing, loudspeaker monomer, flexible PCB
And resilient metal member, described loudspeaker monomer, flexible PCB and resilient metal member are positioned at described housing；
Described loudspeaker monomer includes the magnet steel being positioned at bottom, and described magnet steel is provided with protuberance；On described flexible PCB
Offering groove, described protuberance is positioned in described groove, and the medial wall of described groove is provided with dew copper region；
Described resilient metal member is provided with a pair, and it is folded between the sidewall of described protuberance and described dew copper region, uses
In described flexible PCB is electrically connected with described magnet steel.
Speaker module the most according to claim 1, it is characterised in that on the medial wall of described groove
Being provided with location division, described location division is used for preventing described resilient metal member from slipping from described dew copper region.
Speaker module the most according to claim 2, it is characterised in that described location division is hole, location,
Described dew copper region includes hole, described location, and described resilient metal member is power spring, described power spring position
In hole, described location.
Speaker module the most according to claim 2, it is characterised in that described location division is recessed for location
Groove, the region at the diapire place of described detent is described dew copper region；Described resilient metal member is conduction
Shell fragment, one end of described electroconductive elastic sheet is resisted against described diapire.
Speaker module the most according to claim 4, it is characterised in that one end of described electroconductive elastic sheet
Portion has been bent to form contact site on the direction along described diapire, and described diapire is close on the surface of described contact site.
Speaker module the most according to claim 2, it is characterised in that described location division is convex
Post, described dew copper region includes described positioning convex column；Described resilient metal member is power spring, described conduction
One end of spring is set in described positioning convex column.
Speaker module the most according to claim 2, it is characterised in that described location division is convex
Bar, described positioning convex strip is positioned at the top of the medial wall of described groove, and described dew copper region is positioned at described location
The underface of raised line, one end of described resilient metal member is resisted against described positioning convex strip.
Speaker module the most according to claim 7, it is characterised in that described resilient metal member is for leading
Electricity shell fragment or power spring.
Speaker module the most according to claim 1, it is characterised in that described groove be square,
Rectangle, circular or oval.
10. a mobile terminal, it is characterised in that described mobile terminal includes as appointed in claim 1-9
Anticipate a described speaker module.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610302196.9A CN105848068B (en) | 2016-05-06 | 2016-05-06 | A kind of loud speaker module and mobile terminal |
| CN201810717112.7A CN108900957B (en) | 2016-05-06 | 2016-05-06 | Loudspeaker module and mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610302196.9A CN105848068B (en) | 2016-05-06 | 2016-05-06 | A kind of loud speaker module and mobile terminal |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810717112.7A Division CN108900957B (en) | 2016-05-06 | 2016-05-06 | Loudspeaker module and mobile terminal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105848068A true CN105848068A (en) | 2016-08-10 |
| CN105848068B CN105848068B (en) | 2018-07-27 |
Family
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Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810717112.7A Active CN108900957B (en) | 2016-05-06 | 2016-05-06 | Loudspeaker module and mobile terminal |
| CN201610302196.9A Active CN105848068B (en) | 2016-05-06 | 2016-05-06 | A kind of loud speaker module and mobile terminal |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810717112.7A Active CN108900957B (en) | 2016-05-06 | 2016-05-06 | Loudspeaker module and mobile terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN108900957B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019105220A1 (en) * | 2017-11-30 | 2019-06-06 | Oppo广东移动通信有限公司 | Electroacoustic assembly, electroacoustic device and mobile terminal |
| CN109862484A (en) * | 2018-12-30 | 2019-06-07 | 瑞声声学科技(深圳)有限公司 | A kind of loudspeaker |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US4507800A (en) * | 1982-01-06 | 1985-03-26 | Analog & Digital Systems, Inc. | Enclosed magnet loudspeaker |
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| CN2638346Y (en) * | 2003-03-14 | 2004-09-01 | 明基电通股份有限公司 | Movable telephone and microphone assembly |
| CN2735692Y (en) * | 2004-09-20 | 2005-10-19 | 周百宏 | Loudspeaker configuration structure for hand-held electronic apparatus |
| CN102064404A (en) * | 2010-10-29 | 2011-05-18 | 番禺得意精密电子工业有限公司 | Electric connector assembly |
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| CN109862484A (en) * | 2018-12-30 | 2019-06-07 | 瑞声声学科技(深圳)有限公司 | A kind of loudspeaker |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108900957B (en) | 2020-05-12 |
| CN108900957A (en) | 2018-11-27 |
| CN105848068B (en) | 2018-07-27 |
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Address after: Changan town in Guangdong province Dongguan 523860 usha Beach Road No. 18 Patentee after: OPPO Guangdong Mobile Communications Co., Ltd. Address before: Changan town in Guangdong province Dongguan 523860 usha Beach Road No. 18 Patentee before: Guangdong Opel Mobile Communications Co., Ltd. |