CN108900957A - A kind of loudspeaker mould group and mobile terminal - Google Patents
A kind of loudspeaker mould group and mobile terminal Download PDFInfo
- Publication number
- CN108900957A CN108900957A CN201810717112.7A CN201810717112A CN108900957A CN 108900957 A CN108900957 A CN 108900957A CN 201810717112 A CN201810717112 A CN 201810717112A CN 108900957 A CN108900957 A CN 108900957A
- Authority
- CN
- China
- Prior art keywords
- mould group
- metal member
- resilient metal
- loudspeaker
- slot
- 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
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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 loudspeaker mould group and mobile terminal, which includes：Shell, loudspeaker monomer, flexible circuit board and resilient metal member, the loudspeaker monomer, flexible circuit board and resilient metal member are located in the shell；The loudspeaker monomer includes the magnet steel positioned at bottom, which is equipped with protrusion；Through slot is offered on the flexible circuit board, which is located in the through slot, and the inner sidewall of the through slot is equipped with copper area；The resilient metal member is equipped with a pair, is folded between the side wall of the protrusion and the copper area, for the flexible circuit board to be electrically connected with the magnet steel.Above-mentioned loudspeaker mould group can substantially reduce the back height of magnet steel, to reduce the integral thickness of loudspeaker mould group, be conducive to be thinned.
Description
The application is the submission of on May 06th, 2016 Patent Office of the People's Republic of China, application No. is 201610302196.9, denominations of invention
For the divisional application of " a kind of loudspeaker mould group and mobile terminal ", entire contents are hereby incorporated by reference in the application.
Technical field
The present invention relates to loudspeaker field more particularly to a kind of loudspeaker mould group and mobile terminals.
Background technique
In recent years, with the rapid 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 loudspeaker mould group as mobile communication equipment,
Design quality directly affects the speech performance of Related product.
Loudspeaker mould group 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 loudspeaker mould group includes shell 100, loudspeaker monomer 200 and flexible circuit board
300 (Flexible Printed Circuit board, FPC), loudspeaker monomer 200 and flexible circuit board 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 loudspeaker mould group 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 loudspeaker mould group to there are certain requirements to loudspeaker mould group thickness.
Summary of the invention
The purpose of the present invention is to provide a kind of loudspeaker mould group and mobile terminals, to solve the loudspeaker in existing mobile phone
Mould group 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 loudspeaker mould group comprising：
Shell, loudspeaker monomer, flexible circuit board and resilient metal member, the loudspeaker monomer, flexible circuit board 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
Through slot is offered on flexible circuit board, the protrusion is located in the through slot, and the inner sidewall of the through slot is equipped with copper area；
The resilient metal member is equipped with a pair, is folded between the side wall of the protrusion and the copper area, and being used for will be described soft
Property circuit board be electrically connected with the magnet steel, the clearance distance between the side wall and copper area of the protrusion be equal to it is described elasticity gold
Belong to the active length of part；The height of the protrusion is greater than the thickness of the flexible circuit board；The inner sidewall of the through slot is equipped with
Positioning region, the positioning region is for preventing the resilient metal member from slipping from the copper area.
Further, the positioning region is location hole, and the copper area 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 has been bent to form contact portion, institute on the direction along the bottom wall
It is close to the bottom wall in the surface for stating contact portion.
Further, the positioning region is positioning convex column, and the copper area 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 inner sidewall of the through slot,
The copper area 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 through slot be square, rectangle, circle or ellipse.
Further, the underrun dispensing of the protrusion or the mode of double-sided adhesive cement on the flexible circuit board.
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 loudspeaker mould group described in above-mentioned any one.
Loudspeaker mould group of the present invention and mobile terminal, by opening up through slot on flexible circuit board, and in through slot
Inner sidewall be equipped with copper area, meanwhile, by the way that the protrusion of magnet steel in loudspeaker monomer is located in the through slot, will elasticity it is golden
Belong to part to be clamped between the side wall of the protrusion and copper area, the back height of magnet steel can be substantially reduced, to reduce loudspeaker
The integral thickness of mould group is conducive to be thinned.
Detailed description of the invention
With reference to the accompanying drawing, by the way that detailed description of specific embodiments of the present invention, technical solution of the present invention will be made
And other beneficial effects are apparent.
Fig. 1 is the schematic cross-sectional view for the loudspeaker mould group that the prior art provides.
Fig. 2 is the schematic cross-sectional view of loudspeaker mould group provided in an embodiment of the present invention.
Fig. 3 is that installation of the electroconductive elastic sheet in flexible circuit board is shown in another loudspeaker mould group provided in an embodiment of the present invention
It is intended to.
Fig. 4 is the schematic cross-sectional view of another loudspeaker mould group provided in an embodiment of the present invention.
Fig. 5 is the schematic cross-sectional view of another loudspeaker mould group provided in an embodiment of the present invention.
Specific embodiment
For technical problems, technical solutions and advantages to be solved are 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, loudspeaker mould group provided in an embodiment of the present invention has been described in detail in Fig. 2 comprising shell 1, loudspeaking
Device monomer 2, flexible circuit board 3 and resilient metal member 4, the loudspeaker monomer 2, flexible circuit board 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
Through slot 31 is offered on road plate 3, which is located in the through slot 31, and the inner sidewall of the through slot 31 is equipped with copper area (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 copper area, and being used for will
The flexible circuit board 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-sided adhesive cements on the flexible circuit board 3, avoids being mutually shifted between the two.The loudspeaker mould group is also
It may include sealing element 5, which is mounted on this and goes out at acoustic aperture 11, for guaranteeing 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 for 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 circuit board 3 is logical
It crosses copper area and is transmitted to resilient metal member 4, then be transmitted to voice coil (not shown) 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, so that vibrating diaphragm be driven 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 of protrusion 21 and the inner sidewall of through slot 31, therefore
The height of protrusion 21 only need to be unrelated greater than the working depth of the thickness of flexible circuit board 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 loudspeaker mould group, be conducive to loudspeaker mould group
Slimming.
Preferably, the shape of the through slot 31 can according to actual needs depending on, the shape of the through slot 31 can for example be set
It counts into consistent with the shape of the protrusion 21.Preferably, the shape of the through slot 31 can be square, rectangle, circle or ellipse
Circle, and there is certain interval between the inner sidewall of the through 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 in the protrusion 21 or copper area, if therefore the loudspeaker
When mould group is by hitting, which is easy to slip from copper area, to cause flexible circuit board 3 and magnetic
Electrical connection between steel is disconnected.For the generation for avoiding above-mentioned phenomenon, positioning region can be equipped on the inner sidewall of the through slot 31, it should
Positioning region is for preventing the resilient metal member 4 from slipping from copper area.Preferably, the structure of the positioning region should be according to actual needs
Depending on, it for example can be for 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, the bottom wall place of the positioning groove 312
Region be the copper area, 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, to increase the contact area of the resilient metal member 4 and copper area, it is electric between flexible circuit board 3 and magnet steel to ensure
Connection is good, and the one end of the electroconductive elastic sheet has been bent to form contact portion 41 on the direction along the bottom wall, the contact portion 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 copper area, which be can be with the positioning convex column 313
Centered on border circular areas, the radius of the border circular areas can according to the actual situation depending on.
Preferably, as shown in figure 5, the positioning region can also be positioning convex strip 314, which is located at the through slot
The top of 31 inner sidewall, the copper area 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 circuit board 3 and magnet steel
Connection.
In the present embodiment, which mainly includes that copper clad laminate, copper foil and protective film (do not show in figure
Out), manufacturing process approximately as：Firstly, the process such as performing etching to the copper foil overlayed on copper clad laminate to be needed
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
Copper area is equipped with by the inner sidewall of the through slot 31 in this present embodiment, therefore when drilling to protective film, it needs protecting
The corresponding place of the copper area carries out drilling processing on cuticula, to form the copper area.
In addition, the embodiment of the present invention also provides a kind of mobile terminal, which includes any one of the above loudspeaker
Mould group.Preferably, which can be the electronic products such as mobile phone, tablet computer and laptop.
It can be seen from the above, loudspeaker mould group and mobile terminal described in the embodiment of the present invention, by flexible circuit board 3
Open up through slot 31, and on the inner sidewall of through slot 31 be equipped with copper area, meanwhile, by by loudspeaker monomer 2 magnet steel it is convex
Portion 21 is located in the through slot 31, and resilient metal member 4 is clamped between the side wall and copper area of the protrusion 21, can substantially reduce
The back height of magnet steel is conducive to be thinned to reduce the integral thickness of loudspeaker mould group.
It is provided for the embodiments of the invention a kind of loudspeaker mould group above and mobile terminal is described in detail, herein
In apply that a specific example illustrates the principle and implementation of the invention, the explanation of above example is only intended to sides
Assistant solves method and its core concept of the invention；Meanwhile for those skilled in the art, according to the thought of the present invention, exist
There will be changes in specific embodiment and application range, in conclusion the content of the present specification should not be construed as to this hair
Bright limitation.
Claims (10)
1. a kind of loudspeaker mould group, which is characterized in that including：Shell, loudspeaker monomer, flexible circuit board and resilient metal member,
The loudspeaker monomer, flexible circuit board 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；Through slot is offered on the flexible circuit board, the protrusion is located in the through slot,
The inner sidewall of the through slot is equipped with copper area；The resilient metal member is equipped with a pair, is folded in the side wall of the protrusion
Between the copper area, for the flexible circuit board to be electrically connected with the magnet steel, the side wall and 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 greater than the flexible circuit
The thickness of plate；The inner sidewall of the through slot is equipped with positioning region, and the positioning region is for preventing the resilient metal member from described
Copper area slips.
2. loudspeaker mould group according to claim 1, which is characterized in that the positioning region is location hole, the area 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. loudspeaker mould group 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 copper area；The resilient metal member be electroconductive elastic sheet, the one of the electroconductive elastic sheet
End is resisted against the bottom wall.
4. loudspeaker mould group according to claim 3, which is characterized in that the one end of the electroconductive elastic sheet is along the bottom
Contact portion is bent to form on the direction of wall, the bottom wall is close on the surface of the contact portion.
5. loudspeaker mould group 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 one end of the power spring is set in described fixed
On the pillar of position.
6. loudspeaker mould group 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 inner sidewall of the through slot, and the copper area is located at the underface of the positioning convex strip, the elasticity
One end of metalwork is resisted against the positioning convex strip.
7. loudspeaker mould group according to claim 6, which is characterized in that the resilient metal member is electroconductive elastic sheet or conduction
Spring.
8. loudspeaker mould group according to claim 1, which is characterized in that the through slot is square, rectangle, circle or
Person's ellipse.
9. loudspeaker mould group according to claim 1, which is characterized in that the underrun dispensing of the protrusion or double-sided adhesive
Mode cement on the flexible circuit board.
10. a kind of mobile terminal, which is characterized in that the mobile terminal includes as described in any one of claim 1-9
Loudspeaker mould group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810717112.7A CN108900957B (en) | 2016-05-06 | 2016-05-06 | Loudspeaker module and mobile terminal |
Applications Claiming Priority (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 |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610302196.9A Division CN105848068B (en) | 2016-05-06 | 2016-05-06 | A kind of loud speaker module and mobile terminal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108900957A true CN108900957A (en) | 2018-11-27 |
| CN108900957B CN108900957B (en) | 2020-05-12 |
Family
ID=56591484
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 After (1)
| 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 |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN108900957B (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 |
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|---|---|---|---|---|
| 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 |
| CN203590442U (en) * | 2013-11-12 | 2014-05-07 | 歌尔声学股份有限公司 | Loudspeaker module |
| 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 |
| 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 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
| 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 CN201810717112.7A patent/CN108900957B/en active Active
- 2016-05-06 CN CN201610302196.9A patent/CN105848068B/en active Active
Patent Citations (6)
| 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 |
| 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 |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108900957B (en) | 2020-05-12 |
| CN105848068B (en) | 2018-07-27 |
| CN105848068A (en) | 2016-08-10 |
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