CN105848068B - A kind of loud speaker module and mobile terminal - Google Patents
A kind of loud speaker module and mobile terminal Download PDFInfo
- Publication number
- CN105848068B CN105848068B CN201610302196.9A CN201610302196A CN105848068B CN 105848068 B CN105848068 B CN 105848068B CN 201610302196 A CN201610302196 A CN 201610302196A CN 105848068 B CN105848068 B CN 105848068B
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- China
- Prior art keywords
- metal member
- region
- loud speaker
- resilient metal
- speaker module
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Classifications
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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
- 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 kind of loud speaker module and mobile terminal, which includes：Shell, loudspeaker monomer, flexible PCB and resilient metal member, the loudspeaker monomer, flexible PCB and resilient metal member are located in the shell；The loudspeaker monomer includes the magnet steel positioned at bottom, which is equipped with protrusion；Straight slot is offered on the flexible PCB, which is located in the straight slot, and the madial wall of the straight slot is equipped with dew copper region；The resilient metal member is equipped with a pair, is folded between the side wall of the protrusion and the dew copper region, for the flexible PCB to be electrically connected with the magnet steel.Above-mentioned loud speaker module can substantially reduce the back height of magnet steel, to reduce the integral thickness of loud speaker module, be conducive to be thinned.
Description
Technical field
The present invention relates to loud speaker field more particularly to a kind of loud speaker modules and mobile terminal.
Background technology
In recent years, with the fast development of mobile communication technology, consumer is used more and more with phonetic function
Mobile communication equipment, such as portable phone, handheld device, laptop computer, multimedia player and can be by public
Or the other equipment that dedicated communications network is communicated.Voice playing device of the loud speaker module as mobile communication equipment,
Design quality directly affects the speech performance of Related product.
Loud speaker module is a kind of energy converter, can convert electrical energy into radiating acoustic energy and go out, be in electro-acoustic product
An indispensable part.As shown in Figure 1, existing loud speaker module includes shell 100, loudspeaker monomer 200 and flexible PCB
300 (Flexible Printed Circuit board, FPC), loudspeaker monomer 200 and flexible PCB 300 are contained in shell
In body 100, the bottom of loudspeaker monomer 200 is equipped with magnet steel 201, and the back side of magnet steel 201 passes through electroconductive elastic sheet 400 and flexible circuit
The realization of plate 300 conducts.The loud speaker module of this structure must ensure that the back height of magnet steel 201 is at least above electroconductive elastic sheet
400 working depth is unfavorable for the slimming of loud speaker module to there are certain requirements to loud speaker module thickness.
Invention content
The purpose of the present invention is to provide a kind of loud speaker module and mobile terminals, to solve the loud speaker in existing mobile phone
Module thickness is thicker, it is difficult to the technical issues of adapting to thinning tendency.
In order to solve the above technical problems, the embodiment of the present invention provides following technical scheme：
A kind of loud speaker module comprising：
Shell, loudspeaker monomer, flexible PCB and resilient metal member, the loudspeaker monomer, flexible PCB and bullet
Property metalwork is located in the shell；The loudspeaker monomer includes the magnet steel positioned at bottom, and the magnet steel is equipped with protrusion；It is described
Straight slot is offered on flexible PCB, the protrusion is located in the straight slot, and the madial wall of the straight slot is equipped with dew copper region；
The resilient metal member is equipped with a pair, is folded between the side wall of the protrusion and the dew copper region, and being used for will be described soft
Property circuit board is electrically connected with the magnet steel.
Further, the madial wall of the straight slot is equipped with positioning region, and the positioning region is for preventing the elastic metallic
Part is slipped from the dew copper region.
Further, the positioning region is location hole, and the dew copper region includes the location hole, the resilient metal member
For power spring, the power spring is located in the location hole.
Further, the positioning region is positioning groove, and the region where the bottom wall of the positioning groove is the dew copper
Region；The resilient metal member is electroconductive elastic sheet, and one end of the electroconductive elastic sheet is resisted against the bottom wall.
Further, the one end of the electroconductive elastic sheet is being bent to form contact site along the direction of the bottom wall, institute
It is close to the bottom wall in the surface for stating contact site.
Further, the positioning region is positioning convex column, and the dew copper region includes the positioning convex column；The elasticity gold
Category part is power spring, and one end of the power spring is set in the positioning convex column.
Further, the positioning region is positioning convex strip, and the positioning convex strip is located at the top of the madial wall of the straight slot,
The dew copper region is located at the underface of the positioning convex strip, and one end of the resilient metal member is resisted against the positioning convex strip.
Further, the resilient metal member is electroconductive elastic sheet or power spring.
Further, the straight slot be square, rectangle, circle or ellipse.
In order to solve the above technical problems, the embodiment of the present invention also provides following technical scheme：
A kind of mobile terminal, the mobile terminal include the loud speaker module described in above-mentioned any one.
Loud speaker module and mobile terminal of the present invention, by opening up straight slot on flexible PCB, and in straight slot
Madial wall be equipped with dew copper region, meanwhile, by the way that the protrusion of magnet steel in loudspeaker monomer is located in the straight slot, will elasticity it is golden
Belong to part to be clamped between the side wall of the protrusion and dew copper region, the back height of magnet steel can be substantially reduced, to reduce loud speaker
The integral thickness of module is conducive to be thinned.
Description of the drawings
Below in conjunction with the accompanying drawings, it is described in detail by the specific implementation mode to the present invention, technical scheme of the present invention will be made
And other beneficial effects are apparent.
Fig. 1 is the schematic cross-sectional view for the loud speaker module that the prior art provides.
Fig. 2 is the schematic cross-sectional view of loud speaker module provided in an embodiment of the present invention.
Fig. 3 is that installation of the electroconductive elastic sheet in flexible PCB is shown in another loud speaker module provided in an embodiment of the present invention
It is intended to.
Fig. 4 is the schematic cross-sectional view of another loud speaker module provided in an embodiment of the present invention.
Fig. 5 is the schematic cross-sectional view of another loud speaker module provided in an embodiment of the present invention.
Specific implementation mode
To make technical problems, technical solutions and advantages to be solved be more clearly understood, below in conjunction with
Accompanying drawings and embodiments, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only used
To explain the present invention, it is not intended to limit the present invention.
Referring to Fig. 2, loud speaker module provided in an embodiment of the present invention has been described in detail in Fig. 2 comprising shell 1 is raised one's voice
Device monomer 2, flexible PCB 3 and resilient metal member 4, the loudspeaker monomer 2, flexible PCB 3 and resilient metal member 4 are located at should
In shell 1.The loudspeaker monomer 2 includes the magnet steel (not shown) positioned at bottom, which is equipped with protrusion 21.The flexible electrical
Straight slot 31 is offered on road plate 3, which is located in the straight slot 31, and the madial wall of the straight slot 31 is equipped with dew copper region (figure
In be not shown).The resilient metal member 4 is equipped with a pair, is folded between the side wall of the protrusion 21 and the dew copper region, and being used for will
The flexible PCB 3 is electrically connected with the magnet steel.
Specifically, the shell 1 is hollow cavity, acoustic aperture 11 is offered out on roof.The bottom surface of the protrusion 21 can lead to
The mode for crossing dispensing or double faced adhesive tape cements on the flexible PCB 3, avoids being mutually shifted between the two.The loud speaker module is also
May include sealing element 5, which goes out mounted on this at acoustic aperture 11, for ensureing between the loudspeaker monomer 2 and shell 1
Leakproofness.The loudspeaker monomer 2 further includes vibrating diaphragm and voice coil (being not shown in figure), which is separated into that by the shell 1
The preceding sound chamber and rear sound chamber of this separation, the rear sound chamber are closed cavity.When work, the ac signal on flexible PCB 3 is logical
It crosses dew copper region and is transmitted to resilient metal member 4, then voice coil (not shown) is transmitted to via magnet steel by resilient metal member 4, make
Voice coil generates alternating magnetic field in magnetic gap, and the magnetic effect of the alternating magnetic field forces voice coil to move up and down, to drive vibrating diaphragm to shake
Movable property gives birth to sound wave, which is sent to the external world via preceding sound chamber, to be heard by human ear.
It is mounted on by resilient metal member 4 in this present embodiment between the side wall and the madial wall of straight slot 31 of protrusion 21, therefore
The height of protrusion 21 only need to be unrelated more than the working depth of the thickness of flexible PCB 3 and resilient metal member 4, this to set
The mode of setting can substantially reduce the height of protrusion 21, to reduce the integral thickness of loud speaker module, be conducive to loud speaker module
Slimming.
Preferably, the shape of the straight slot 31 for example can set the shape of the straight slot 31 depending on actual demand
It counts into consistent with the shape of the protrusion 21.Preferably, the shape of the straight slot 31 can be square, rectangle, circle or ellipse
Circle, and there is certain interval between the madial wall of the straight slot 31 and the side wall of the protrusion 21.Under normal conditions, the clearance distance
For the active length of resilient metal member 4.
In view of the both ends of the resilient metal member 4 are not fixed on the protrusion 21 or dew copper region, if therefore the loud speaker
When module is by hitting, which is easy to slip from dew copper region, to cause flexible PCB 3 and magnetic
Electrical connection between steel is disconnected.To avoid the generation of above-mentioned phenomenon, positioning region can be equipped on the madial wall of the straight slot 31, it should
Positioning region is for preventing the resilient metal member 4 from being slipped from dew copper region.Preferably, the structure of the positioning region should be according to actual demand
Depending on, can be for example hole, slot, protrusion or fin etc., it specifically can be refering to Fig. 2 to Fig. 5.
Preferably, as shown in Fig. 2, the positioning region can be location hole 311, which includes the location hole 311, this
When, which is power spring, which is located in the location hole 311.Specifically, the location hole 311 is blind
Hole, and to avoid the power spring from falling off from the location hole 311, the aperture of the location hole 311 and depth need to be according to practical feelings
Depending on condition.
Preferably, as shown in figure 3, the positioning region can also be positioning groove 312, where the bottom wall of the positioning groove 312
Region be the dew copper region, at this point, the resilient metal member 4 be electroconductive elastic sheet, one end of the electroconductive elastic sheet is resisted against the bottom wall.
Specifically, for the contact area for increasing the resilient metal member 4 with revealing copper region, it is electric between flexible PCB 3 and magnet steel to ensure
Connection is good, and the one end of the electroconductive elastic sheet has been bent to form contact site 41 on the direction along the bottom wall, the contact site 41
It is close to the bottom wall of the positioning groove 312 in surface.
Preferably, as shown in figure 4, the positioning region can also be positioning convex column 313, which includes the positioning convex column
313, at this point, the resilient metal member 4 is power spring, one end of the power spring is set in the positioning convex column 313.Specifically
, to avoid poor contact between the resilient metal member 4 and dew copper region, which can be with the positioning convex column 313
Centered on border circular areas, the radius of the border circular areas can be depending on actual conditions.
Preferably, as shown in figure 5, the positioning region can also be positioning convex strip 314, which is located at the straight slot
The top of 31 madial wall, the dew copper region are located at the underface of the positioning convex strip 314, and one end of the resilient metal member 4 is supported
In the positioning convex strip 314.Specifically, the resilient metal member 4 can be power spring or electroconductive elastic sheet.The positioning convex strip 314 is big
It causes to be horizontally disposed with, length should be greater than the outer diameter of the power spring or the width of the electroconductive elastic sheet, lead in this way, just can avoid this
Electrical spring or electroconductive elastic sheet are not easy to slip from the positioning convex strip 314, ensure that the electricity between the flexible PCB 3 and magnet steel
Connection.
In the present embodiment, which (does not show mainly including copper clad laminate, copper foil and protective film in figure
Go out), manufacturing process approximately as：First, process are performed etching etc. to be needed to the copper foil overlayed on copper clad laminate
The circuit wanted, while drilled to protective film as required to expose corresponding pad, after cleaning, by copper clad laminate and protection
Film is combined using rolling process, later, is protected in the pad portion electroplating gold of exposing or tin etc..It should be noted that
Dew copper region is equipped with by the madial wall of the straight slot 31 in this present embodiment, therefore when drilling to protective film, it needs protecting
The corresponding place in dew copper region carries out drilling processing on cuticula, to form the dew copper region.
In addition, the embodiment of the present invention also provides a kind of mobile terminal, which includes any one of the above loud speaker
Module.Preferably, which can be the electronic products such as mobile phone, tablet computer and laptop.
It can be seen from the above, the loud speaker module described in the embodiment of the present invention and mobile terminal, by flexible PCB 3
Open up straight slot 31, and be equipped with dew copper region on the madial wall of straight slot 31, meanwhile, by by loudspeaker monomer 2 magnet steel it is convex
Portion 21 is located in the straight slot 31, and resilient metal member 4 is clamped between the side wall of the protrusion 21 and dew copper region, can be substantially reduced
The back height of magnet steel is conducive to be thinned to reduce the integral thickness of loud speaker module.
It is provided for the embodiments of the invention a kind of loud speaker module above and mobile terminal is described in detail, herein
In apply specific case principle and implementation of the present invention are described, the explanation of above example is only intended to sides
Assistant solves the method and its core concept of the present invention；Meanwhile for those skilled in the art, according to the thought of the present invention,
There will be changes in specific implementation mode and application range, in conclusion the content of the present specification should not be construed as to this hair
Bright limitation.
Claims (9)
1. a kind of loud speaker module, which is characterized in that including：Shell, loudspeaker monomer, flexible PCB and resilient metal member,
The loudspeaker monomer, flexible PCB and resilient metal member are located in the shell；The loudspeaker monomer includes being located at bottom
The magnet steel in portion, the magnet steel are equipped with protrusion；Straight slot is offered on the flexible PCB, the protrusion is located in the straight slot,
The madial wall of the straight slot is equipped with dew copper region；The resilient metal member is equipped with a pair, is folded in the side wall of the protrusion
Between the dew copper region, for the flexible PCB to be electrically connected with the magnet steel, side wall and the dew copper of the protrusion
Clearance distance between region is equal to the active length of the resilient metal member；The height of the protrusion is more than the flexible circuit
The thickness of plate；The madial wall of the straight slot is equipped with positioning region, and the positioning region is for preventing the resilient metal member from described
Reveal copper region to slip；Acoustic aperture is offered out in housing top wall, going out sealing element is installed at acoustic aperture；Loudspeaker monomer further includes shaking
Shell is separated into the preceding sound chamber being separated from each other and rear sound chamber by film and voice coil, vibrating diaphragm, and rear sound chamber is closed cavity；It is soft when work
Property circuit board on ac signal be transmitted to resilient metal member by revealing copper region, then transmitted via magnet steel by resilient metal member
To voice coil, voice coil is set to generate alternating magnetic field in magnetic gap, the magnetic effect of alternating magnetic field forces voice coil to move up and down, to drive
Diaphragm oscillations generate sound wave, and sound wave is sent to the external world via preceding sound chamber, to be heard by human ear；
Wherein, the flexible PCB includes copper clad laminate, copper foil and protective film, the dew that the madial wall of the straight slot is equipped with
Copper region is to obtain in the following way：When drilling to the protective film, the corresponding place in copper region is revealed on protective film
Drilling processing is carried out, to form the dew copper region.
2. loud speaker module according to claim 1, which is characterized in that the positioning region is location hole, the areas Lu Tong
Domain includes the location hole, and the resilient metal member is power spring, and the power spring is located in the location hole.
3. loud speaker module according to claim 1, which is characterized in that the positioning region is positioning groove, the positioning
Region where the bottom wall of groove is the dew copper region；The resilient metal member be electroconductive elastic sheet, the one of the electroconductive elastic sheet
End is resisted against the bottom wall.
4. loud speaker module according to claim 3, which is characterized in that the one end of the electroconductive elastic sheet is along the bottom
Contact site is bent to form on the direction of wall, the bottom wall is close on the surface of the contact site.
5. loud speaker module according to claim 1, which is characterized in that the positioning region is positioning convex column, the dew copper
Region includes the positioning convex column；The resilient metal member is power spring, and it is described fixed that one end of the power spring is set in
On the pillar of position.
6. loud speaker module according to claim 1, which is characterized in that the positioning region is positioning convex strip, the positioning
Raised line is located at the top of the madial wall of the straight slot, and the dew copper region is located at the underface of the positioning convex strip, the elasticity
One end of metalwork is resisted against the positioning convex strip.
7. loud speaker module according to claim 6, which is characterized in that the resilient metal member is electroconductive elastic sheet or conduction
Spring.
8. loud speaker module according to claim 1, which is characterized in that the straight slot is square, rectangle, circle or
Person's ellipse.
9. a kind of mobile terminal, which is characterized in that the mobile terminal includes raising as described in any one of claim 1-8
Sound device module.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810717112.7A CN108900957B (en) | 2016-05-06 | 2016-05-06 | Loudspeaker module and mobile terminal |
| CN201610302196.9A CN105848068B (en) | 2016-05-06 | 2016-05-06 | A kind of loud speaker 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 CN105848068A (en) | 2016-08-10 |
| CN105848068B true CN105848068B (en) | 2018-07-27 |
Family
ID=56591484
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610302196.9A Active CN105848068B (en) | 2016-05-06 | 2016-05-06 | A kind of loud speaker module and mobile terminal |
| CN201810717112.7A Active CN108900957B (en) | 2016-05-06 | 2016-05-06 | Loudspeaker module and mobile terminal |
Family Applications After (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) | CN105848068B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107809708B (en) * | 2017-11-30 | 2020-05-05 | Oppo广东移动通信有限公司 | Electroacoustic component, electroacoustic device and mobile terminal |
| CN109862484B (en) * | 2018-12-30 | 2021-10-01 | 瑞声声学科技(深圳)有限公司 | Loudspeaker |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4507800A (en) * | 1982-01-06 | 1985-03-26 | Analog & Digital Systems, Inc. | Enclosed magnet loudspeaker |
| 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 |
| CN103428605A (en) * | 2012-05-23 | 2013-12-04 | 鸿富锦精密工业（深圳）有限公司 | Electronic device with sound output function |
| CN103905934A (en) * | 2012-12-28 | 2014-07-02 | 富泰华工业（深圳）有限公司 | Loudspeaker and electronic device with loudspeaker |
| CN203590442U (en) * | 2013-11-12 | 2014-05-07 | 歌尔声学股份有限公司 | Loudspeaker module |
| CN204206383U (en) * | 2014-08-29 | 2015-03-11 | 东莞市腾音电子有限公司 | A kind of Mobile phone horn |
| CN205071289U (en) * | 2015-07-24 | 2016-03-02 | 上海与德通讯技术有限公司 | Sound chamber module and install electronic equipment of this sound chamber module |
| CN205081955U (en) * | 2015-07-24 | 2016-03-09 | 瑞声光电科技(常州)有限公司 | Loudspeaker module group |
-
2016
- 2016-05-06 CN CN201610302196.9A patent/CN105848068B/en active Active
- 2016-05-06 CN CN201810717112.7A patent/CN108900957B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN108900957B (en) | 2020-05-12 |
| CN108900957A (en) | 2018-11-27 |
| CN105848068A (en) | 2016-08-10 |
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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. |
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