CN108111946B - Vibration sounding structure and terminal - Google Patents
Vibration sounding structure and terminal Download PDFInfo
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- CN108111946B CN108111946B CN201711317195.2A CN201711317195A CN108111946B CN 108111946 B CN108111946 B CN 108111946B CN 201711317195 A CN201711317195 A CN 201711317195A CN 108111946 B CN108111946 B CN 108111946B
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- fixed edge
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Abstract
The present invention discloses a kind of vibration sounding structure, including shell, first fixed edge, second fixed edge, oscillating plate, coupling pad and piezoelectric speaker, first fixed edge and the second fixed edge are respectively coated by the both ends that shell is oppositely arranged, first fixed edge and the second fixed edge respectively include the first flanging and the second flanging of bending setting, first flanging and the second flanging are oppositely arranged and mutually towards extensions, oscillating plate connects the first flanging and the second flanging, there is a gap between oscillating plate and shell, coupling pad is set in gap, piezoelectric speaker fits in the region that shell is connect with coupling pad, vibrational energy is transferred to the effect on oscillating plate and generating sound wave by coupling pad to realize.The vibrational energy of piezoelectric speaker, is transferred on oscillating plate by vibration sounding structure provided by the invention by coupling pad, can generate efficient sound wave by the vibration of oscillating plate, and sensitivity can be improved.
Description
Technical field
The present invention relates to technical field of electronic products more particularly to a kind of vibration sounding structures and terminal.
Background technique
Loudspeaker is a kind of electricity-power-sonic transducer, it is the critical elements in stereo set.Loudspeaker people usually
Daily life in used extensively, bring many conveniences, the electricity such as automobile, broadcast, TV, speaker, mobile phone, MP4, computer
In sub- product scope, the application of loudspeaker is almost seen everywhere.There are many type of loudspeaker, can be divided by its energy conversion principle
Electrodynamic type (i.e. moving-coil type), electrostatic (i.e. condenser type), electromagnetic type (i.e. reed), piezoelectric type etc. are several；It can by frequency range
It is divided into woofer, Squawker, high pitch loudspeaker, wherein coil-moving speaker is most widely used.And piezoelectricity loudspeaking
Device is because of its small, thin, light feature, under the trend of current device miniaturization, has extremely bright prospect and future.
The basic principle of the vibration sounding part of current most of piezoelectric speakers are as follows: electrode connects alternating current, due to inverse
Piezoelectric effect, piezoelectric ceramic piece generates vibration, metal vibration diaphragm is made to occur bending and deformation, to generate vibration, and then pushes air
Vibration generates acoustic pressure, makes a sound.
Compared with traditional moving-coil speaker, piezoelectric speaker has following advantage:
1. not needing magnet in piezoelectric speaker structure, the circuit of surrounding is generated to there will not be any magnetic field
Interference and influence, will not receive grit from surrounding space.
2. the thickness ultrathin of piezoelectric speaker, compares coil-moving speaker, piezoelectric speaker is mountable to more flat sky
Between in, this point keeps it great competitive in current market；
3. piezoelectric speaker has the characteristics that light, weight is generally less than 1g, 50%- lighter than traditional moving-coil speaker
80%；
It is the 1/5-1/2 of coil-moving speaker consumption power 4. piezoelectric speaker is low in energy consumption, generally less than 15mW, this is big
The battery life of device is extended greatly；
5. the acoustics design of piezoelectric speaker is simple, the back side only needs little room, in this embodiment it is not even necessary to for moving-coil speaker
The necessary cavity for being used to improve sound pressure level.
Although piezoelectric speaker has the above advantages, the one class resonant frequency (frequency response curve of piezoelectric speaker
The corresponding frequency in a peak) it is general higher, low frequency characteristic is slightly worse, low frequency narrow bandwidth, i.e. replaying bass effect is poor.In addition existing
The sound pressure frequency response curve of some piezoelectric speakers generally has more violent fluctuating in midband, to cause harmonic distortion height, sound
Matter is poor, and sensitivity is not also high.
Summary of the invention
In view of this, in view of the deficiencies of the prior art, the present invention aims to provide a kind of replaying bass effects
Fruit is good, sound quality is good and sensitivity also high vibration sounding structure and terminal.
To achieve the above object, on the one hand, the present invention provides a kind of vibration sounding structure, and the vibration sounding structure includes
Shell, the first fixed edge, the second fixed edge, oscillating plate, coupling pad and piezoelectric speaker, described first is fixed
Side and the second fixed edge are respectively coated by the both ends that the shell is oppositely arranged, first fixed edge and the second fixed edge
The first flanging and the second flanging of bending setting are respectively included, first flanging and the second flanging are oppositely arranged simultaneously mutually
Towards extension, and there is gap between first flanging and second flanging and the shell, the oscillating plate connects
First flanging and the second flanging are connect, and there is gap, the coupling pad between the oscillating plate and the shell
It is pressed between the shell and the oscillating plate, the pressure in gap between the oscillating plate and the shell
Electric loudspeaker is disposed in the housing portion, and the piezoelectric speaker fits in the area of the shell connecting with the coupling pad
In domain, vibrational energy is transferred on the oscillating plate by the coupling pad with realization and generates the effect of sound wave.
Wherein, the volume of the piezoelectric speaker is greater than the volume of the coupling pad, and the piezoelectric speaker covers institute
State the contact area of coupling pad Yu the shell.
Wherein, first flanging and the second flanging are the S-shaped or waveform of bending setting.
Wherein, the oscillating plate and first flanging and the second flanging are integrally formed.
Wherein, the oscillating plate is Nian Jie with first flanging and the second flanging.
Wherein, the coupling pad is adhered on the oscillating plate, and is contacted with shell extruding.
Wherein, the coupling pad is adhered to the oscillating plate center.
Wherein, the material of the coupling pad is silica gel, rubber or foam.
Wherein, first fixed edge and the second fixed edge are adhered on the both ends of the shell being oppositely arranged.
Wherein, first fixed edge and the second fixed edge are concave shape batten.
Wherein, first flanging and second flanging extend along the width direction of the shell.
On the other hand, the embodiment of the invention also provides a kind of terminal, the terminal includes terminal body and above-mentioned
Vibration sounding structure, the vibration sounding structure are electrically connected with the terminal body.
Vibration sounding structure provided by the invention is coated on shell by the first fixed edge of setting and the second fixed edge
Both ends, and the first flanging and the second flanging that setting bending is arranged on the first fixed edge and the second fixed edge, then will
Oscillating plate is connected to the first flanging and the second flanging, so that can have gap between oscillating plate and shell, so as to protect
Demonstrate,prove enough oscillation spaces, and can balance vibration, then coupling pad is set in gap, then piezoelectric speaker is bonded
In in the region that shell is connect with coupling pad, the vibrational energy of piezoelectric speaker is transferred to by oscillating plate by coupling pad
On so that oscillating plate can forced vibration generate sound wave, and then make a sound.Using aforesaid way, piezoelectricity can be enhanced
The replaying bass effect of loudspeaker, sound quality is preferably and sensitivity is also high.
Detailed description of the invention
More clearly to illustrate construction feature and effect of the invention, come with reference to the accompanying drawing with specific embodiment to its into
Row is described in detail.
Fig. 1 is the structural schematic diagram for the vibration sounding structure that embodiment of the present invention provides.
Specific embodiment
Below in conjunction with the attached drawing in embodiment of the present invention, the technical solution in embodiment of the present invention is carried out clear
Chu is fully described by.
Referring to Fig. 1, a kind of terminal provided by the invention, including terminal body (not identified in figure) and vibration sounding knot
Structure 100, the vibration sounding structure 100 are electrically connected with the terminal body.
In the present embodiment, the terminal can be the intelligent terminals such as mobile phone, tablet computer.Then with described in the present embodiment
Terminal be mobile phone for be described.
The terminal body may include mainboard, touch panel unit, display screen component and battery etc., the touch screen group
Part, display screen component and battery are electrically connected with the mainboard.
The vibration sounding structure 100 is electrically connected with the mainboard.The vibration sounding structure 100 includes shell 10, the
One fixed edge 20, the second fixed edge 30, oscillating plate 40, coupling pad 50 and piezoelectric speaker 60.First fixed edge 20
And second fixed edge 30 be respectively coated by the both ends that the shell 10 is oppositely arranged.First fixed edge 20 and second is solid
Deckle 30 respectively includes the first flanging 21 and the second flanging 31 of bending setting, first flanging 21 and the second flanging 31
It is oppositely arranged and mutually towards extension.The oscillating plate 40 connects first flanging 20 and the second flanging 30, and described
There is a gap 41 between oscillating plate 40 and the shell 10.The coupling pad 50 is set in the gap 41, the piezoelectricity
Loudspeaker 60 fits in the region that the shell 10 is connect with the coupling pad 50, passes through the coupling pad 50 to realize
Vibrational energy is transferred on the oscillating plate 40 and generates the effect of sound wave.
Vibration sounding structure 100 provided in an embodiment of the present invention is by wrapping the first fixed edge 20 and the second fixed edge 30
The both ends of shell 10 are overlying on, and the first flanging 21 of bending setting is respectively set in the first fixed edge 20 and the second fixed edge 30
And second flanging 31, then oscillating plate 40 is set connect the first flanging 21 and the second flanging 31, then in the oscillating plate
Coupling pad 50 is set on 40, piezoelectric speaker 60 is set to inside the shell 10, by coupling pad 50 by piezoelectricity loudspeaking
The vibrational energy of device 60 is transferred on the oscillating plate 40, sound wave is generated by the vibration of oscillating plate 40, since oscillating plate 40 is
Efficient vibration, sound transformational structure, so enable to the sound timbre of final output good and high sensitivity.In addition, using
The first flanging 21 and the second flanging 31 of setting are bent, so that the two sides of the oscillating plate 40 have sufficient vibration
Dynamic space, and can balance vibration, improve sound quality.
Specifically, the shell 10 can be handset shell, such as mobile phone battery cover.The material of the shell 10 can for metal or
Person's plastic cement etc..
First fixed edge 20 is coated on one end of the shell 10.In the present embodiment, first fixed edge 20 is
The recessed portion cladding of concave shape batten, first fixed edge 20 fits on one end of the shell 10.Specifically, described
One fixed edge 20 is adhered on one end of the shell 10.Preferably, for the ease of fixation, first fixed edge 20 passes through glue
Water or double-sided adhesive are adhered on one end of the shell 10, to prevent first fixed edge 20 from separating with the shell 10.
Further, it is fine that silica gel, rubber, bakelite, naphthalate can be used in the material of first fixed edge 20
The high molecular materials such as (PEN), polyether ketone fiber (PEEK) are tieed up, in order to form.
In the present embodiment, first flanging 21 extends one end of first fixed edge 20, and first folding
Side 21 is the S-shaped or waveform of bending setting, in order to be able to 40 two sides of oscillating plate be enabled to have sufficient vibration
Dynamic space, and audio quality can be improved with balance vibration.Specifically, first flanging 21 can be by being shaped in
State on the first fixed edge 20 or first flanging 21 can be also adhered on first fixed edge 20, with realize with it is described
The unseparated effect of first fixed edge 20.In addition, first flanging 21 is along the shell in order to guarantee sufficient oscillation space
10 width direction extends, and has gap between first flanging 21 and the shell 10, in order to the subsequent vibration
Movable plate 40 can be capable of forming the gap 41 between the shell 10.
Second fixed edge 30 is coated on the other end of the shell 10.In the present embodiment, due to described second solid
The structure of deckle 30 is identical as the structure of first fixed edge 20, and specific structure can be found in above-mentioned fixed for described first
The structure on side 20 describes, so no longer the structure of second fixed edge 30 is described herein.
To setting, simultaneously mutually direction extends second flanging 31 with 21 property of the first flanging, i.e., described second flanging 31
Also extend along the width direction of the shell 10, and with first flanging 21 mutually towards setting.In the present embodiment, due to
The structure of second flanging 31 is identical as the structure of first flanging 21, and specific structure can be found in above-mentioned for described
The structure of one flanging 21 describes, so no longer the structure of second flanging 31 is described herein.
The oscillating plate 40 connects first flanging 21 and the second flanging 31.In the present embodiment, the oscillating plate 40
For square plate, the oscillating plate 40 is integrally formed with first flanging 21 and the second flanging 31, so as to reduce installation.
It is understood that in another embodiment, the oscillating plate 40 can also be with first flanging 21 and the second flanging 31
Bonding.Specifically, the oscillating plate 40 can be used glue, double-sided adhesive etc. and be adhered to first flanging 21 and the second flanging 31
On, to be capable of forming the gap 41 with the shell 10.Meanwhile by the oscillating plate 40 be connected to first flanging 21 with
And second flanging 31, enable to the oscillating plate 40 that there is enough oscillation spaces in vibration, so as to improve sound quality
Effect.
Further, the material one of the material of the oscillating plate 40 and first fixed edge 20 and the second fixed edge 30
It causes, i.e., it is fine that silica gel, rubber, bakelite, naphthalate fiber (PEN), polyether-ketone can be used in the material of the described oscillating plate 40
Tie up high molecular materials such as (PEEK).
The coupling pad 50 is adhered on the oscillating plate 40, and is contacted with the shell 10 extruding.In the present embodiment,
The coupling pad 50 is adhered at the center of the oscillating plate 40, and preferably, and the coupling pad 50 can pass through glue
Or double-sided adhesive etc. is adhered at the center of the oscillating plate 40, to prevent the coupling pad 50 from dividing with the oscillating plate 40
From, or in the vibration processes of the oscillating plate 40, there is shifting phenomena and vibrational energy is caused to pass in the coupling pad 50
Pass the undesirable problem of effect.The coupling pad 50 is connected between the oscillating plate 40 and the shell 10, so as to
It is enough that the vibrational energy that the shell 10 issues is transferred on the oscillating plate 40, and issued by the vibration of the oscillating plate 40
Sound wave.
Further, the material of the coupling pad 50 can be silica gel, rubber or foam etc., to realize transmitting vibrational energy
It measures and guarantees transmission effect.
The piezoelectric speaker 60 is set to inside the shell 10.In the present embodiment, the piezoelectric speaker 60 can be pressure
Electroceramics piece, the volume of the piezoelectric speaker 60 is greater than the volume of the coupling pad 50, so that the piezoelectricity
Loudspeaker 60 can cover the contact area of the coupling pad 50 and the shell 10, so that the coupling pad 50 can begin
Final position is within the scope of the vibrational energy of the piezoelectric speaker 60, in order to which vibrational energy is transferred to institute by the coupling pad 50
It states on oscillating plate 40.Preferably, the piezoelectric speaker 60 can be used glue and be adhered at the center of the shell 10, to prevent
The piezoelectric speaker 60 shifts.
By the way that the piezoelectric speaker 60 to be set to inside the shell 10, then the coupling pad 50 is pressed on
Between the shell 10 and the oscillating plate 40, and the oscillating plate 40 is connected to first flanging 21 and the second folding
Side 31, enabling has the gap 41 between the oscillating plate 40 and the shell 10, then passes through the coupling pad
50 vibrational energies for capableing of piezoelectric speaker 60 are transferred on the oscillating plate 40, can be by the vibration by the oscillating plate 40
Energy is converted into efficient vibration acoustic, so that the acoustic sensitivity of the vibration sounding structure 100 is high, and sound quality is imitated
Fruit is good.
Vibration sounding structure provided by the invention is coated on shell by the first fixed edge of setting and the second fixed edge
Both ends, and the first flanging and the second flanging that setting bending is arranged on the first fixed edge and the second fixed edge, then will
Oscillating plate is connected to the first flanging and the second flanging, so that can have gap between oscillating plate and shell, so as to protect
Demonstrate,prove enough oscillation spaces, and can balance vibration, then coupling pad is set in gap, then piezoelectric speaker is bonded
In in the region that shell is connect with coupling pad, the vibrational energy of piezoelectric speaker is transferred to by oscillating plate by coupling pad
On so that oscillating plate can forced vibration generate sound wave, and then make a sound.Using aforesaid way, piezoelectricity can be enhanced
The replaying bass effect of loudspeaker, sound quality is preferably and sensitivity is also high.
The above is a preferred embodiment of the present invention, it is noted that for those skilled in the art
For, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also considered as
Protection scope of the present invention.
Claims (12)
1. a kind of vibration sounding structure, which is characterized in that the vibration sounding structure includes shell, the first fixed edge, second solid
Deckle, oscillating plate, coupling pad and piezoelectric speaker, first fixed edge and the second fixed edge are respectively coated by described
The both ends that shell is oppositely arranged, first fixed edge include the first flanging of bending setting, and second fixed edge includes curved
The second flanging of setting is rolled over, first flanging and the second flanging are oppositely arranged and mutually direction extends, and described first
There is gap, the oscillating plate connects first flanging and second between flanging and second flanging and the shell
Flanging, and there is gap between the oscillating plate and the shell, the coupling pad is set to the oscillating plate and the shell
It is pressed between the shell and the oscillating plate in gap between body, the piezoelectric speaker is disposed in the housing
Portion, the piezoelectric speaker fit in the region of the shell connecting with the coupling pad, pass through the coupling to realize
Gasket is closed vibrational energy is transferred on the oscillating plate and generates the effect of sound wave.
2. vibration sounding structure according to claim 1, which is characterized in that the volume of the piezoelectric speaker is greater than described
The volume of coupling pad, the piezoelectric speaker cover the contact area of the coupling pad Yu the shell.
3. vibration sounding structure according to claim 1, which is characterized in that first flanging and the second flanging are
Bend the S-shaped or waveform of setting.
4. vibration sounding structure according to claim 1, which is characterized in that the oscillating plate and first flanging and
Second flanging is integrally formed.
5. vibration sounding structure according to claim 1, which is characterized in that the oscillating plate and first flanging and
Second flanging bonding.
6. vibration sounding structure according to claim 1, which is characterized in that the coupling pad is adhered to the oscillating plate
On, and contacted with shell extruding.
7. vibration sounding structure according to claim 6, which is characterized in that the coupling pad is adhered to the oscillating plate
Center.
8. vibration sounding structure described in any one according to claim 1~7, which is characterized in that the material of the coupling pad
Matter is silica gel, rubber or foam.
9. vibration sounding structure according to claim 1, which is characterized in that first fixed edge and the second fixed edge
It is adhered on the both ends of the shell being oppositely arranged.
10. vibration sounding structure according to claim 1, which is characterized in that first fixed edge and the second fixation
While being concave shape batten.
11. vibration sounding structure according to claim 1, which is characterized in that first flanging and second folding
The width direction of shell described in edge extends.
12. a kind of terminal, which is characterized in that the terminal includes terminal body and such as claim 1~11 any one institute
The vibration sounding structure stated, the vibration sounding structure are electrically connected with the terminal body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711317195.2A CN108111946B (en) | 2015-06-29 | 2015-06-29 | Vibration sounding structure and terminal |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711317195.2A CN108111946B (en) | 2015-06-29 | 2015-06-29 | Vibration sounding structure and terminal |
| CN201510373351.1A CN105025422B (en) | 2015-06-29 | 2015-06-29 | vibration sounding structure and terminal |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510373351.1A Division CN105025422B (en) | 2015-06-29 | 2015-06-29 | vibration sounding structure and terminal |
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| Publication Number | Publication Date |
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| CN108111946A CN108111946A (en) | 2018-06-01 |
| CN108111946B true CN108111946B (en) | 2019-08-20 |
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| CN201510373351.1A Active CN105025422B (en) | 2015-06-29 | 2015-06-29 | vibration sounding structure and terminal |
| CN201711317195.2A Active CN108111946B (en) | 2015-06-29 | 2015-06-29 | Vibration sounding structure and terminal |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3046005B1 (en) * | 2015-12-17 | 2018-02-02 | Delphi Technologies, Inc. | SOUND TRANSMITTING DEVICE |
| CN106902610B (en) * | 2017-03-24 | 2023-03-17 | 中国计量大学 | Sound coagulation synergy demister |
| CN111573211A (en) * | 2020-06-24 | 2020-08-25 | 深圳市美卡达科技有限公司 | Vibration dish mechanism |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015016785A (en) * | 2013-07-11 | 2015-01-29 | カルソニックカンセイ株式会社 | Speaker mounting structure |
| CN204425652U (en) * | 2015-01-23 | 2015-06-24 | 瑞声光电科技(常州)有限公司 | Electro-acoustic element |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001103599A (en) * | 1999-09-29 | 2001-04-13 | Toko Inc | Piezoelectric loudspeaker |
| JP3925414B2 (en) * | 2002-04-26 | 2007-06-06 | 株式会社村田製作所 | Piezoelectric electroacoustic transducer |
| KR100625772B1 (en) * | 2004-12-03 | 2006-09-20 | (주)아이블포토닉스 | Piezoelectric vibrator with multi acting vibrator |
| JP5579627B2 (en) * | 2009-05-25 | 2014-08-27 | パナソニック株式会社 | Piezoelectric acoustic transducer |
| CN102111702B (en) * | 2009-12-24 | 2014-02-19 | 精拓丽音科技（北京）有限公司 | Piezoelectric flat panel loudspeaker with distributed ceramic wafers |
| CN102450035B (en) * | 2010-03-29 | 2016-03-16 | 松下知识产权经营株式会社 | Piezoelectric electroacoustic transducer |
| JP5195895B2 (en) * | 2010-12-27 | 2013-05-15 | 株式会社村田製作所 | Piezoelectric sounding parts |
| CN203608351U (en) * | 2013-10-28 | 2014-05-21 | 瑞声科技（南京）有限公司 | A flat plate sound production apparatus |
| CN104053103B (en) * | 2014-06-25 | 2018-08-28 | 歌尔股份有限公司 | Piezoelectric speaker |
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- 2015-06-29 CN CN201510373351.1A patent/CN105025422B/en active Active
- 2015-06-29 CN CN201711317195.2A patent/CN108111946B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015016785A (en) * | 2013-07-11 | 2015-01-29 | カルソニックカンセイ株式会社 | Speaker mounting structure |
| CN204425652U (en) * | 2015-01-23 | 2015-06-24 | 瑞声光电科技(常州)有限公司 | Electro-acoustic element |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105025422B (en) | 2018-01-23 |
| CN105025422A (en) | 2015-11-04 |
| CN108111946A (en) | 2018-06-01 |
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