CN207460497U - Piezoelectric type tablet microphone device - Google Patents
Piezoelectric type tablet microphone device Download PDFInfo
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- CN207460497U CN207460497U CN201721473546.4U CN201721473546U CN207460497U CN 207460497 U CN207460497 U CN 207460497U CN 201721473546 U CN201721473546 U CN 201721473546U CN 207460497 U CN207460497 U CN 207460497U
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- microphone device
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Abstract
The utility model provides a kind of piezoelectric type tablet microphone device, it is related to sound-producing device technical field, piezoelectric type tablet microphone device provided by the utility model includes bending vibrator and branch piece, the one side of branch piece is connected with bending vibrator, the another side of branch piece with screen for being connected, the line normal to screen of the center of gravity of bending vibrator and the center of gravity of branch piece.Piezoelectric type tablet microphone device provided by the utility model bending vibrator can be vibrated caused by power vertical transmission to the component on other directions on screen, will not be generated, reduce the sound damage in transmittance process, conduct the better of sound.
Description
Technical field
The utility model is related to sound-producing device technical field, more particularly, to a kind of piezoelectric type tablet microphone device.
Background technology
With the development of electronic communication, the use of terminal device is increasingly popularized, for example, smart mobile phone, tablet are electric
Brain etc..
User is also higher and higher to the experience requirements of terminal device, and in correlation technique, the receiver of terminal device, which is arranged on, to be set
Standby front, for example, receiver is located at the centre position at top below terminal device, receiver accounts for the part below terminal device
Region so that terminal device front cannot be completely covered in display screen, and display area is not big enough.
In another example mobile phone or tablet computer need waterproof, it is impossible to sound hole are set on housing, screen sound-producing device can solve
Certainly this problem.
In another example flat panel TV can bring more preferable audio experience using tablet sounding to spectators.
The principle of sound of flat plate sound production device is：The vibration of the electric machine transducers of installation on an electronic device is transmitted to electronics
The screen of equipment or other can vibrate and the shell of sounding, the vibration for then passing through screen or other shells that can be vibrated are real
Existing sounding effect.
But the screen sounding of the prior art is to form cantilever beam structure after one end of flexure type oscillator is fixed on screen,
Its free end has added the mass block of one block of metal, and a vibration acceleration is generated in cantilever beam vibration, is coupled by fixed point
Onto screen, screen is made to generate vibration and sounding and generate osteoacusis effect.The vibration acceleration of cantilever beam is passed by fulcrum
To screen, a vibration force part forms torsion, and with vertical screen direction only there are one component, torsion is made simultaneously with vertical force
It is poor with effect on the screen, it is easy to cause audio distortions.
Therefore, how to provide a kind of conduction sound effect more preferably piezoelectric type tablet microphone device is those skilled in the art
One of the technical issues of need to solving.
Utility model content
The purpose of this utility model is to provide a kind of piezoelectric type tablet microphone device, to solve tablet of the prior art
The technical issues of sound-producing device conduction sound effect is bad.
The utility model provides a kind of piezoelectric type tablet microphone device, including bending vibrator and branch piece, the one of the branch piece
Face is connected with the bending vibrator, the another side of the branch piece for being connected with screen, the center of gravity of the bending vibrator with it is described
The line of the center of gravity of branch piece is perpendicular to the screen.
Further, the bending vibrator includes principal oscillation piece and the slave vibration component being connected with the principal oscillation piece；
The branch piece is connected with the principal oscillation piece or the branch piece is connected with described from vibration component.
Further, the principal oscillation piece is piezoelectric ceramic piece.
Further, the mass block for including substrate from vibration component and being connected with the substrate edge.
Further, the mass block is equipped with towards the one side of the substrate in the groove with the receiving substrate edge.
Further, the substrate is circular or regular polygon.
Further, the piezoelectric type tablet microphone device includes a piece of principal oscillation piece；
The substrate is arranged between the principal oscillation piece and the branch piece；
Or, the principal oscillation piece is arranged between the substrate and the branch piece.
Further, the piezoelectric type tablet microphone device includes principal oscillation piece described in multi-disc.
Further, principal oscillation piece described in multi-disc forms one group of principal oscillation component；
The substrate is arranged between the principal oscillation component and the branch piece；
Or, the principal oscillation component is arranged between the substrate and the branch piece.
Further, principal oscillation piece described in multi-disc forms two groups of principal oscillation components；
The substrate is arranged between principal oscillation component described in two groups, and the branch piece connects with principal oscillation component described in any one group
It connects.
Piezoelectric type tablet microphone device provided by the utility model can generate following advantageous effect：
In piezoelectric type tablet microphone device provided by the utility model, bending vibrator is concurrent for connecting AC audio signal
Raw vibration, subsequent bending vibrator transmit these vibrations to branch piece, and branch piece is connected with screen, generate screen and vibrate and sounding.
When using above-mentioned piezoelectric type tablet microphone device, branch piece is connected with screen, subsequent bending vibrator connects with branch piece
It connects.When bending vibrator connects AC audio signal and vibrates, due to the company of the center of gravity of the center of gravity and branch piece of bending vibrator
Line normal to screen, so when bending vibrator generates vibration, acceleration that bending vibrator generates compared with branch piece be it is symmetrical,
It makes a concerted effort to be vertical screen, can pass to the vibration acceleration in the vertical screen direction of screen bigger, can obtain volume maximum,
The optimal effect of tonequality.
For the prior art, the center of gravity of bending vibrator in piezoelectric type tablet microphone device provided by the utility model
With the line normal to screen of the center of gravity of branch piece, this allows for being only given screen one vertically when bending vibrator drives branch piece vibration
In the power on screen orientation, the component on other directions will not be generated, it is accurate can audio signal to be converted to the vibration formed
Screen is transferred to, the sound damage in transmittance process is reduced, conducts the better of sound.
Description of the drawings
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution of the prior art
Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it describes below
In attached drawing be the utility model some embodiments, for those of ordinary skill in the art, do not paying creativeness
On the premise of work, other attached drawings are can also be obtained according to these attached drawings.
Fig. 1 is the structural blast schematic diagram for the piezoelectric type tablet microphone device that the utility model embodiment one provides；
Fig. 2 is a kind of diagrammatic cross-section for piezoelectric type tablet microphone device that the utility model embodiment one provides；
Fig. 3 is the diagrammatic cross-section for another piezoelectric type tablet microphone device that the utility model embodiment one provides；
Fig. 4 is the diagrammatic cross-section for the piezoelectric type tablet microphone device that the utility model embodiment two provides；
Fig. 5 is the diagrammatic cross-section for the piezoelectric type tablet microphone device that the utility model embodiment three provides.
Icon：1- bending vibrators；11- principal oscillation pieces；12- is from vibration component；121- substrates；122- mass blocks；
2- branch pieces.
Specific embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model part of the embodiment, instead of all the embodiments.Based on the embodiment in the utility model, sheet
Field those of ordinary skill all other embodiments obtained without making creative work, belong to this practicality
Novel protected scope.
, it is necessary to explanation in the description of the utility model, term " " center ", " on ", " under ", it is "left", "right", " perpendicular
Directly ", the orientation of the instructions such as " level ", " interior ", " outer " or position relationship are based on orientation shown in the drawings or position relationship, are only
The utility model must have specific with the device or element for simplifying description rather than instruction or hint meaning for ease of description
Orientation, with specific azimuth configuration and operation, therefore it is not intended that limitation to the utility model.In addition, term " the
One ", " second ", " the 3rd " are only used for description purpose, and it is not intended that instruction or hint relative importance.
, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in the description of the utility model
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or integrally
Connection；Can be mechanical connection or electrical connection；It can be directly connected, can also be indirectly connected by intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, can above-mentioned art be understood with concrete condition
Concrete meaning of the language in the utility model.
Specific embodiment of the present utility model is described in detail below in conjunction with attached drawing.It should be appreciated that herein
Described specific embodiment is only used for describing and explaining the present invention, and is not intended to limit the utility model.
Fig. 1 is the structural blast schematic diagram for the piezoelectric type tablet microphone device that the utility model embodiment one provides；Fig. 2 is
A kind of diagrammatic cross-section for piezoelectric type tablet microphone device that the utility model embodiment one provides；Fig. 3 is real for the utility model
The diagrammatic cross-section of another piezoelectric type tablet microphone device of the offer of example one is provided；Fig. 4 provides for the utility model embodiment two
Piezoelectric type tablet microphone device diagrammatic cross-section；Fig. 5 is the piezoelectric type tablet sounding that the utility model embodiment three provides
The diagrammatic cross-section of device.
The present embodiment is designed to provide a kind of piezoelectric type tablet microphone device, as shown in Figure 1, including bending vibrator 1
With branch piece 2, the one side of branch piece 2 is connected with bending vibrator 1, and the another side of branch piece 2 with screen for being connected, the weight of bending vibrator 1
The heart and the line normal to screen of the center of gravity of branch piece 2.
In piezoelectric type tablet microphone device provided by the utility model, bending vibrator 1 is used to connect AC audio signal simultaneously
It vibrates, subsequent bending vibrator 1 transmits these vibrations to branch piece 2, and branch piece 2 is connected with screen, generates screen and vibrates and sounding.
When using above-mentioned piezoelectric type tablet microphone device, branch piece 2 is connected with screen, subsequent bending vibrator 1 and branch piece 2
Connection.When bending vibrator 1 connects AC audio signal and vibrates, due to the center of gravity of the center of gravity and branch piece 2 of bending vibrator 1
Line normal to screen, so when bending vibrator 1 generate vibration when, bending vibrator 1 generate acceleration be compared with branch piece 2
Symmetrically, make a concerted effort to be vertical screen, the vibration acceleration in the vertical screen direction of screen bigger can be passed to, can obtain sound
Amount is maximum, the optimal effect of tonequality.
For the prior art, the weight of bending vibrator 1 in piezoelectric type tablet microphone device provided by the utility model
The heart and the line normal to screen of the center of gravity of branch piece 2, this allows for being only given screen one when bending vibrator 1 drives branch piece 2 to vibrate
Power on a normal to screen direction, will not generate the component on other directions, and audio signal can be converted to the vibration formed
It is accurate to be transferred to screen, the sound damage in transmittance process is reduced, conducts the better of sound.
Specifically, branch piece 2 can be connected with screen by machanical fastener such as screw, rivet etc., can also pass through non-knot
The colloid bonding of configuration, such as use adhesive, sealing and conductive adhesive.Branch piece 2 passes through glue with screen in the present embodiment
Body is bonded.Colloid bonding stress transfer compared with traditional mechanical fasteners, stress distribution evenly, and be bonded structure ratio
Mechanical fasteners (riveting, welding, interference connection and the modes such as be bolted) intensity is high, at low cost, light weight, will not be by fastener
Or the limitation in solder joint and its thermoinduction region.
For bending vibrator 1 is enabled preferably to transmit these vibrations to branch piece 2, as shown in Figures 2 and 3, bending vibrator 1 includes
Principal oscillation piece 11 and the slave vibration component 12 being connected with principal oscillation piece 11, branch piece 2 be connected with principal oscillation piece 11 or branch piece 2 with from
Vibration component 12 connects.Principal oscillation piece 11 for connecting AC audio signal and vibrate, due to from vibration component 12 with it is main
Vibrating reed 11 connects, therefore when principal oscillation piece 11 vibrates, resonance can be generated with principal oscillation piece 11 from vibration component 12, increased
Oscillation Amplitude, no matter branch piece 2 is connected with principal oscillation piece 11 or can be vibrated therewith with being connected branch piece 2 from vibration component 12,
Vibration is preferably transferred to screen.
Specifically, for cause the structure of bending vibrator 1 more securely, stablize, principal oscillation piece 11, from vibration component 12 with
And the line and screen vertical of the center of gravity of branch piece 2, and when branch piece 2 is connected with screen, plane residing for branch piece is parallel to screen institute
Locate plane.When said structure enables to the principal oscillation piece 11 to vibrate, vibrate being transferred to from vibration component 12 of can stablizing and
Branch piece 2 is finally transferred to screen by branch piece 2.
Specifically, principal oscillation piece 11 is Nian Jie with from colloid may be employed between vibration component 12, branch piece 2 and principal oscillation piece 11
Between or branch piece 2 and from may be employed between vibration component 12 colloid connection.
Further, principal oscillation piece 11 is piezoelectric ceramic piece.When piezoelectric ceramic piece connects AC audio signal, piezoelectricity pottery
Tile can be vibrated according to the big small frequency of signal, by being transferred to screen or directly logical from vibration component 12 and branch piece 2
It crosses branch piece 2 and is transferred to screen, realize the sounding of screen.
Specifically, piezoelectric ceramic piece can be that electrode stacks style in multilayer, and piezoelectric ceramic piece driving voltage is less than or equal to
40Vp-p。
Further, substrate 121 and the mass block 122 being connected with 121 edge of substrate, mass block are included from vibration component 12
122 are used to increase the Oscillation Amplitude of substrate 121.Since mass block 122 is arranged on the edge of substrate 121, therefore, when substrate 121 occurs
During vibration, since mass block 122 has certain quality, mass block 122 can generate larger compared with the center of gravity of substrate 121
Torque, the amplitude of the effective vibration for increasing substrate 121 so that the sound bigger of screen outflow.
It should be noted that various structures may be employed in mass block 122.Mass block 122 can be multiple is evenly distributed on
The pouring weight at 121 edge of substrate, when substrate 121 vibrates, the collective effect of multiple pouring weights can generate one perpendicular to screen
The power of curtain；Mass block 122 or an annular pouring weight around 121 edge of substrate, should when substrate 121 vibrates
Annular pouring weight can generate the power of a normal to screen.It is every can increase by 121 Oscillation Amplitude of substrate structure can be
The structure of mass block 122 provided in this embodiment, no longer illustrates one by one herein.
Preferably, using annular pouring weight, the one side of mass block 122 towards substrate 121 is equipped with mass block 122 in the present embodiment
In the groove with 121 edge of receiving substrate.Groove can be with L-shaped step-like, and the edge of substrate 121 connects with forming the surface of groove
It connects.
Specifically, it is Nian Jie that colloid may be employed between substrate 121 and mass block 122, screw, rivet etc. can also be used even
It connects, it is Nian Jie using colloid between substrate 121 and mass block 122 in the present embodiment in order to avoid distortion occurs for sound.
Further, in order to enable conducting the better of sound, substrate 121 can be circular or regular polygon, work as master
Vibrating reed 11 can be equilateral triangle, square, regular pentagon, etc. when using regular polygon.Substrate in the present embodiment
121 use circular sheet-like structures.
Specifically, in the present embodiment, principal oscillation piece 11 and branch piece 2 use circular sheet-like structures so that substrate
121st, principal oscillation piece 11 and the axis of branch piece 2 overlap, and axis normal to screen.The conjunction of bending vibrator 1 has been effectively ensured
Power can perpendicular acting on the screen so that volume is maximum, tonequality is optimal.
Following three embodiments can be divided by including the number of principal oscillation piece 11 according to piezoelectric type tablet microphone device：
Embodiment one：
In the present embodiment one, as shown in Figures 2 and 3, piezoelectric type tablet microphone device includes a piece of principal oscillation piece 11；Base
Piece 121 is arranged between principal oscillation piece 11 and branch piece 2；Or, principal oscillation piece 11 is arranged between substrate 121 and branch piece 2.When principal oscillation piece
During 11 connection AC audio signal, principal oscillation piece 11 can be as shown in Figure 2 by being transferred to screen from vibration component 12 and branch piece 2
Curtain is directly transferred to screen by branch piece 2 as shown in Figure 3, realizes the sounding of screen.Above-mentioned electric-type tablet microphone device
Simple in structure, production and processing is convenient.
Embodiment two：
In the present embodiment two, piezoelectric type tablet microphone device includes multi-disc principal oscillation piece 11.
Multi-disc principal oscillation piece 11 can be also turned on AC audio signal, while carry out reaction to AC audio signal
Vibration can more accurately convert audio signals into the vibration of bending vibrator 1, ensure the effect of conduction sound.
In the present embodiment two, multi-disc principal oscillation piece 11 forms one group of principal oscillation component, can be included in principal oscillation component
Two panels, three pieces, four principal oscillation pieces 11, substrate 121 are arranged between principal oscillation component and branch piece 2；Or, principal oscillation component is arranged on base
Between piece 121 and branch piece 2.
The present embodiment two is arranged on substrate 121 between principal oscillation component and branch piece 2, and principal oscillation component shakes comprising two panels master
Movable plate 11 is specifically described, as shown in figure 4, two panels principal oscillation piece 11 is stacked, and the axis weight of two panels principal oscillation piece 11
It closes, after two panels principal oscillation piece 11 is also turned on AC audio signal, two panels principal oscillation piece 11 vibrates simultaneously, common to drive
Mass block 122 on substrate 121 and substrate 121 vibrates, and screen is transmitted these vibrations to by branch piece 2 with meron 121,
So that screen makes a sound.
Embodiment three：
In the present embodiment three, piezoelectric type tablet microphone device includes multi-disc principal oscillation piece 11.
Multi-disc principal oscillation piece 11 can be also turned on AC audio signal, while carry out reaction to AC audio signal
Vibration can more accurately convert audio signals into the vibration of bending vibrator 1, ensure the effect of conduction sound.
In the present embodiment three, multi-disc principal oscillation piece 11 forms two groups of principal oscillation components, can in each group of principal oscillation component
Comprising at least a piece of principal oscillation piece 11, can specifically include a piece of, two panels, three pieces principal oscillation piece 11；Substrate 121 is arranged on two groups
Between principal oscillation component, branch piece 2 is connected with any one group of principal oscillation component.
The present embodiment three is specifically described with each group of principal oscillation component including a piece of principal oscillation piece 11, as shown in figure 5,
When the principal oscillation piece 11 of 121 lower surface of 121 upper surface of substrate and substrate vibrates, it can drive and be adjusted from shaking jointly
The vibration of dynamic component 12 improves the effect of conduction sound, and the principal oscillation piece 11 of 121 lower surface of substrate can directly pass through
Branch piece 2 transmits these vibrations to screen, effectively avoids audio distortions.
Finally it should be noted that：Various embodiments above is only to illustrate the technical solution of the utility model rather than it is limited
System；Although the utility model is described in detail with reference to foregoing embodiments, those of ordinary skill in the art should
Understand：It can still modify to the technical solution recorded in foregoing embodiments either to which part or whole
Technical characteristic carries out equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is not made to depart from this practicality newly
The scope of each embodiment technical solution of type.
Claims (10)
1. a kind of piezoelectric type tablet microphone device, which is characterized in that including bending vibrator (1) and branch piece (2), the branch piece (2)
One side be connected with the bending vibrator (1), the another side of the branch piece (2) with screen for being connected, the bending vibrator (1)
Center of gravity and the branch piece (2) center of gravity line perpendicular to the screen.
2. piezoelectric type tablet microphone device according to claim 1, which is characterized in that the bending vibrator (1) includes master
Vibrating reed (11) and the slave vibration component (12) being connected with the principal oscillation piece (11)；
The branch piece (2) is connected with the principal oscillation piece (11) or the branch piece (2) is connected with described from vibration component (12).
3. piezoelectric type tablet microphone device according to claim 2, which is characterized in that the principal oscillation piece (11) is piezoelectricity
Potsherd.
4. piezoelectric type tablet microphone device according to claim 2, which is characterized in that described to include from vibration component (12)
Substrate (121) and the mass block (122) being connected with the substrate (121) edge.
5. piezoelectric type tablet microphone device according to claim 4, which is characterized in that the mass block (122) is towards institute
The one side for stating substrate (121) is equipped in the groove with receiving substrate (121) edge.
6. piezoelectric type tablet microphone device according to claim 4, which is characterized in that the substrate (121) to be circular or
Regular polygon.
7. piezoelectric type tablet microphone device according to claim 4, which is characterized in that the piezoelectric type tablet microphone device
Including a piece of principal oscillation piece (11)；
The substrate (121) is arranged between the principal oscillation piece (11) and the branch piece (2)；
Or, the principal oscillation piece (11) is arranged between the substrate (121) and the branch piece (2).
8. piezoelectric type tablet microphone device according to claim 4, which is characterized in that the piezoelectric type tablet microphone device
Including principal oscillation piece (11) described in multi-disc.
9. piezoelectric type tablet microphone device according to claim 8, which is characterized in that principal oscillation piece (11) structure described in multi-disc
Into one group of principal oscillation component；
The substrate (121) is arranged between the principal oscillation component and the branch piece (2)；
Or, the principal oscillation component is arranged between the substrate (121) and the branch piece (2).
10. piezoelectric type tablet microphone device according to claim 8, which is characterized in that principal oscillation piece (11) described in multi-disc
Form two groups of principal oscillation components；
The substrate (121) is arranged between principal oscillation component described in two groups, the branch piece (2) and principal oscillation group described in any one group
Part connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721473546.4U CN207460497U (en) | 2017-11-07 | 2017-11-07 | Piezoelectric type tablet microphone device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721473546.4U CN207460497U (en) | 2017-11-07 | 2017-11-07 | Piezoelectric type tablet microphone device |
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| Publication Number | Publication Date |
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| CN207460497U true CN207460497U (en) | 2018-06-05 |
Family
ID=62254282
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| CN201721473546.4U Active CN207460497U (en) | 2017-11-07 | 2017-11-07 | Piezoelectric type tablet microphone device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110166861A (en) * | 2019-05-30 | 2019-08-23 | 江苏铁锚玻璃股份有限公司 | One-way planar sounding device and the fixed structure for improving its sound quality |
| CN110418244A (en) * | 2019-08-29 | 2019-11-05 | 北京小米移动软件有限公司 | Electro-acoustic transducing device and the electronic equipment for applying it |
| CN111770411A (en) * | 2020-06-15 | 2020-10-13 | Oppo广东移动通信有限公司 | Sound production subassembly and electronic equipment |
| WO2021169410A1 (en) * | 2020-02-25 | 2021-09-02 | 华为技术有限公司 | Vibration component of electronic device and electronic device |
-
2017
- 2017-11-07 CN CN201721473546.4U patent/CN207460497U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110166861A (en) * | 2019-05-30 | 2019-08-23 | 江苏铁锚玻璃股份有限公司 | One-way planar sounding device and the fixed structure for improving its sound quality |
| CN110166861B (en) * | 2019-05-30 | 2024-04-02 | 江苏铁锚玻璃股份有限公司 | Unidirectional plane sound production device and fixing structure for improving sound quality thereof |
| CN110418244A (en) * | 2019-08-29 | 2019-11-05 | 北京小米移动软件有限公司 | Electro-acoustic transducing device and the electronic equipment for applying it |
| WO2021169410A1 (en) * | 2020-02-25 | 2021-09-02 | 华为技术有限公司 | Vibration component of electronic device and electronic device |
| CN111770411A (en) * | 2020-06-15 | 2020-10-13 | Oppo广东移动通信有限公司 | Sound production subassembly and electronic equipment |
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