CN206743535U - Electro-acoustic conversion device and electronic installation - Google Patents
Electro-acoustic conversion device and electronic installation Download PDFInfo
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- CN206743535U CN206743535U CN201720595690.9U CN201720595690U CN206743535U CN 206743535 U CN206743535 U CN 206743535U CN 201720595690 U CN201720595690 U CN 201720595690U CN 206743535 U CN206743535 U CN 206743535U
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Abstract
The utility model discloses a kind of electro-acoustic conversion device and electronic installation, electro-acoustic conversion device includes housing, electro-acoustic element and vibrating elements.Housing goes out acoustic aperture formed with sound chamber and with what sound chamber connected.Electro-acoustic element is arranged in sound chamber.Vibrating elements is fixed on housing, and vibrating elements is used for the liquid for producing sound wave to be atomized in sound chamber, so that the liquid after atomization is expelled to outside sound chamber by going out acoustic aperture.In above-mentioned electro-acoustic conversion device and electronic installation, vibrating elements vibrates to produce sound wave and the liquid atomization heel row in sound chamber is gone out into sound chamber, this ensure that electro-acoustic element normal work at work.
Description
Technical field
It the utility model is related to field of electronic devices, more particularly to a kind of electro-acoustic conversion device and electronic installation.
Background technology
Mobile phone etc. have electro-acoustic element (such as loudspeaker) electronic installation sound intracavitary enter liquid after, if not in time
Liquid is discharged, then can influence electro-acoustic element normal work.
Utility model content
The utility model provides a kind of electro-acoustic conversion device and a kind of electronic installation.
The electro-acoustic conversion device of the utility model embodiment includes housing, electro-acoustic element and vibrating elements.The housing
Go out acoustic aperture formed with sound chamber and with what the sound chamber connected.The electro-acoustic element is arranged in the sound chamber.The vibrating elements
Fixed the vibrating elements is used for the liquid for producing sound wave to be atomized in the sound chamber on the housing, so that after atomization
Go out acoustic aperture described in the liquid process to be expelled to outside the sound chamber.
In some embodiments, the sound chamber includes rear sound chamber and the preceding sound chamber connected with the rear sound chamber, the electricity
Acoustic device is housed in the rear in sound chamber, it is described go out acoustic aperture connect the preceding sound chamber.
In some embodiments, the housing includes rear shell and fore shell, and the rear shell connects the fore shell, the rear shell
The rear sound chamber is surrounded, the fore shell surrounds the preceding sound chamber, and the electro-acoustic element is arranged in the rear shell, the vibration member
Part is fixed on the fore shell.
In some embodiments, the fore shell includes the vibrating reed relative with the side of speaking of the electro-acoustic element, described
Vibrating elements is fixed on the vibrating reed.
In some embodiments, the vibrating reed is steel disc.
In some embodiments, the vibrating elements is located at outside the preceding sound intracavitary or the preceding sound chamber.
In some embodiments, the fore shell is structure as a whole.
In some embodiments, it is described go out acoustic aperture limited and formed jointly by the fore shell and the rear shell.
The electronic installation of the utility model embodiment includes shell and the electro-acoustic conversion device of any of the above embodiment.
The shell is formed with loud-speaker opening.The electro-acoustic conversion device is set in the housing, it is described go out acoustic aperture and the loud-speaker opening
Connection.
In some embodiments, the electronic installation includes：
Detection module, the detection module are used for detecting in the sound chamber whether have liquid；With
Processor, the processor are used to control the vibrating elements vibration to produce sound when having liquid in the sound chamber
Ripple, so as to be atomized the liquid of the sound intracavitary.
In some embodiments, the detection module is used to detect described in impedance curve and the judgement of the electro-acoustic element
Whether impedance curve matches with default impedance curve, judges institute when the impedance curve mismatches with the default impedance curve
Stating sound chamber has liquid.
In above-mentioned electro-acoustic conversion device and electronic installation, vibrating elements vibrates to produce sound wave and by sound chamber at work
Liquid atomization heel row go out sound chamber, this ensure that electro-acoustic element normal work.
Additional aspect and advantage of the present utility model will be set forth in part in the description, partly by from following description
In become obvious, or by it is of the present utility model practice recognize.
Brief description of the drawings
In description of the of the present utility model above-mentioned and/or additional aspect and advantage from combination accompanying drawings below to embodiment
It will be apparent and be readily appreciated that, wherein：
Fig. 1 is the schematic cross-section of the electro-acoustic conversion device of the utility model embodiment；
Fig. 2 is another schematic cross-section of the electro-acoustic conversion device of the utility model embodiment；
Fig. 3 is the front schematic view of the electronic installation of the utility model embodiment；
Fig. 4 is the schematic bottom view of the electronic installation of the utility model embodiment；
Fig. 5 is the impedance curve schematic diagram of the electro-acoustic element of the utility model embodiment.
Main element symbol description：
Electro-acoustic conversion device 100, housing 10, sound chamber 11, rear sound chamber 111, preceding sound chamber 112, go out acoustic aperture 12, be rear shell 13, preceding
Shell 14, limiting section 141, vibrating reed 142, connecting portion 143, electro-acoustic element 20, vibrating elements 30；
Electronic installation 200, shell 202, loud-speaker opening 204, detection module 210, processor 220, circuit board 230, memory
240th, power circuit 250.
Embodiment
Embodiment of the present utility model is described below in detail, the example of the embodiment is shown in the drawings, wherein
Same or similar label represents same or similar element or the element with same or like function from beginning to end.Lead to below
It is exemplary to cross the embodiment being described with reference to the drawings, and is only used for explaining the utility model, and it is not intended that to this practicality
New limitation.
In description of the present utility model, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width
Degree ", " thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " liquid is put down ", " top ", " bottom ", " interior ", " outer ",
The orientation or position relationship of the instructions such as " clockwise ", " counterclockwise " be based on orientation shown in the drawings or position relationship, be only for
Be easy to describe the utility model and simplify to describe, rather than instruction or imply signified device or element must have it is specific
Orientation, with specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.In addition, term " first ",
" second " is only used for describing purpose, and it is not intended that indicating or implying relative importance or imply the technology indicated by indicating
The quantity of feature.Thus, " first " is defined, the feature of " second " can be expressed or implicitly include one or more
The feature.In description of the present utility model, " multiple " are meant that two or more, unless otherwise clearly specific
Limit.
, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in description of the present utility model
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly
Connection；It can be mechanical connection or electrical connection or can mutually communicate；Can be joined directly together, can also be in
Between medium be indirectly connected, can be connection or the interaction relationship of two elements of two element internals.For this area
For those of ordinary skill, concrete meaning of the above-mentioned term in the utility model can be understood as the case may be.
In the utility model, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or it
" under " can directly be contacted including the first and second features, it is not directly to contact but lead to that can also include the first and second features
The other characterisation contact crossed between them.Moreover, fisrt feature second feature " on ", " top " and " above " include the
One feature is directly over second feature and oblique upper, or is merely representative of the flat height of fisrt feature liquid and is higher than second feature.First
Feature second feature " under ", " lower section " and " below " include fisrt feature immediately below second feature and obliquely downward, or only
Only represent that the flat height of fisrt feature liquid is less than second feature.
Following disclosure provides many different embodiments or example is used for realizing different structure of the present utility model.
In order to simplify disclosure of the present utility model, hereinafter the part and setting of specific examples are described.Certainly, they are only
Example, and purpose does not lie in limitation the utility model.In addition, the utility model can in different examples repeat reference numerals
And/or reference letter, this repetition are for purposes of simplicity and clarity, itself not indicate discussed various embodiments
And/or the relation between setting.In addition, various specific techniques and the example of material that the utility model provides, but this
Field those of ordinary skill can be appreciated that the application of other techniques and/or the use of other materials.
Referring to Fig. 1, the electro-acoustic conversion device 100 of the utility model embodiment includes housing 10, the and of electro-acoustic element 20
Vibrating elements 30.What housing 10 connected formed with sound chamber 11 and with sound chamber 11 goes out acoustic aperture 12.Electro-acoustic element 20 is arranged on sound chamber 11
In.Vibrating elements 30 is fixed on the housing 10, and vibrating elements 30 is used for the liquid for producing sound wave to be atomized in sound chamber 11, so that mist
Liquid after change is expelled to outside sound chamber 11 by going out acoustic aperture 12.
In above-mentioned electro-acoustic conversion device 100, vibrating elements 30 vibrates to produce sound wave and by sound chamber 11 at work
Liquid atomization heel row goes out sound chamber 11, this ensure that the normal work of electro-acoustic element 20.Further, since vibrating elements 30 is fixed on shell
On body 10, vibrating elements 30 can drive housing 10 to vibrate together when vibrating, so as to produce more sound waves to improve sound
The atomization speed of liquid in chamber 11.
Specifically, vibrating elements 30 is for example fixed on the housing 10 by way of bonding, after vibrating elements 30 is powered, by
Exciting force can be produced in piezo-electric effect and is vibrated, and vibrating elements 30 can drive housing 10 to vibrate together when vibrating, vibration member
Part 30 and housing 10 can produce high frequency sound wave in vibration, and the frequency of high frequency sound wave is greater than 6000Hz, vibrating elements 30
More than 20000Hz ultrasonic wave can be even produced in vibration with housing 10.Produced during liquid transmissive of the sound wave in sound chamber 11
Raw cavitation phenomenon, so that hole is exploded and the liquid around hole is ground into small liquid particles between liquid and air,
To form liquid mist, so as to realize the effect atomized the liquid into.Electro-acoustic element 20 is, for example, the loudspeaker of electronic installation, wheat
The components such as the loudspeaker in gram wind, receiver or earphone.
In one example, vibrating elements 30 is piezoelectric ceramic piece.In this way, because piezoelectric ceramic piece is easily controlled, so
Make it easy to control the time of vibration and vibration frequency of piezoelectric ceramic piece, so as to improve the atomization of the liquid in sound chamber 11 effect
Fruit.
It is appreciated that go out the external world that acoustic aperture 12 connects sound chamber 11 and housing 10.
In some embodiments, sound chamber 11 includes rear sound chamber 111 and the preceding sound chamber 112 connected with rear sound chamber 111, electroacoustic
Device 20 is housed in rear sound chamber 111, goes out sound chamber 112 before acoustic aperture 12 connects.
In this way, sound caused by electro-acoustic element 20 successfully can pass to housing from going out acoustic aperture 12 after preceding sound chamber 112
Outside 10.
In some embodiments, housing 10 includes rear shell 13 and fore shell 14, and rear shell 13 connects fore shell 14, and rear shell 13 surrounds
Sound chamber 111 afterwards, sound chamber 112 before fore shell 14 surrounds, electro-acoustic element 20 is arranged in rear shell 13, and vibrating elements 30 is fixed on fore shell 14
On.
Due to going out sound chamber 112 before acoustic aperture 12 connects, liquid easily enters in preceding sound chamber 112 from going out acoustic aperture 12.In this way, vibration
Element 30 is fixed on the distance that can shorten vibrating elements 30 and the liquid in preceding sound chamber 112 on fore shell 14, and vibrating elements 30 produces
The loss of raw sound wave is smaller, with the atomizing effect of the liquid in sound chamber 112 before raising.In addition, housing 10 is made up of two parts,
Allow to housing 10 easily to be formed.
Specifically, rear shell 13 and fore shell 14 can be molded with split, and rear shell 13 forms housing 10 after being assembled with fore shell 14.Fore shell
14 formed with limiting section 141, and the form fit of limiting section 141 and electro-acoustic element 20 is to limit electro-acoustic element 20 in sound chamber 11
Position.In present embodiment, to form rectangular groove, the corner of groove and electro-acoustic element 20 matches limiting section 141.Electroacoustic
Device 20 is for example arranged on by way of bonding in rear shell 13.
In some embodiments, fore shell 14 includes vibrating reed 142.The side phase of speaking of vibrating reed 142 and electro-acoustic element 20
Right, vibrating elements 30 is fixed on vibrating reed 142.
After current sound chamber 112 enters liquid, electro-acoustic element 20 is wetted, and the vibrating diaphragm of especially electro-acoustic element 20 is wetted, from
And influence the service behaviour of electro-acoustic element 20.It is appreciated that the vibrating diaphragm of electro-acoustic element 30 is located at the side of speaking of electro-acoustic element 30, because
This, vibrating reed 142 can make it that vibrating elements 30 is relative with the vibrating diaphragm of electro-acoustic element 20, and sound wave caused by vibrating elements 30 can be with
Effectively the liquid on the vibrating diaphragm of electro-acoustic element 20 is atomized to dry the vibrating diaphragm of electro-acoustic element 20, so as to ensure electro-acoustic element 20
Service behaviour.
Specifically, fore shell 14 also includes the connecting portion 143 being connected with vibrating reed 142, and vibrating reed 142, which can be embedded, to be connected
In portion 143.In other words, connecting portion 143 surrounds vibrating reed 142.Connecting portion 143 is connected with rear shell 13.
In some embodiments, vibrating reed 142 is steel disc.In this way, vibrating reed 142 easily produced with vibrating elements 30 it is humorous
Shake to increase the growing amount of sound wave.
In some embodiments, vibrating elements 30 is located in preceding sound chamber 112, as shown in Figure 1.
In this way, sound wave caused by vibrating elements 30 is lost less during liquid is propagated to, liquid can be improved
Atomizing effect.
Certainly, in some embodiments, vibrating elements 30 can also be located at outside preceding sound chamber 112, as shown in Figure 2.
In some embodiments, fore shell 14 is structure as a whole.For example, fore shell 14 can pass through in-mould injection using plastics
Technique formed integrative-structure, so that the easy to manufacture of fore shell 14 is formed, and can reduce the manufacturing cost of housing 10.
In some embodiments, go out acoustic aperture 12 to be formed by common limit of fore shell 14 and rear shell 13.In this way, fore shell 14 or after
Shell 13 is without individually open up through hole using as going out acoustic aperture 12, so that fore shell 14 and rear shell 13 are more easily manufactured to be formed.
Fig. 3 and Fig. 4 is referred to, the electronic installation 200 of the utility model embodiment includes shell 202 and any of the above is real
Apply the electro-acoustic conversion device 100 of mode.Shell 202 is formed with loud-speaker opening 204.Electro-acoustic conversion device 100 is arranged on shell 202
In, go out acoustic aperture 12 and connected with loud-speaker opening 204.Electronic installation 200 is, for example, that mobile phone or tablet personal computer etc. have electro-acoustic element 20
Mobile terminal.
In this way, vibrating elements 30 vibrates to produce sound wave and the liquid atomization heel row in sound chamber 11 is gone out into sound chamber at work
11, this ensure that the normal work of electro-acoustic element 20, and then ensure the normal work of electronic installation 200.Specifically, electro-acoustic element 20
Caused sound can be passed to outside electronic installation 200 by loud-speaker opening 204, so that user can hear what electro-acoustic element 20 was sent
Sound.User can play song by electronic installation 200, and listen to electro-acoustic element 20 and broadcast the melody of song with pleasant body
The heart.
Specifically, in present embodiment, the quantity of loud-speaker opening 204 is multiple, and multiple loud-speaker openings 204 are along same linear interval
Arrangement.
In some embodiments, electronic installation 200 includes detection module 210 and processor 220.Detection module 210 is used
In detecting in sound chamber 11 whether have liquid.Processor 220 be used for there is liquid time control vibrating elements 30 to vibrate in sound chamber 11 with
Sound wave is produced, so as to the liquid being atomized in sound chamber 11.
In this way, whether electronic installation 200 can be has liquid in automatic detection sound chamber 11, and will when having liquid in sound chamber 11
Liquid is atomized to discharge outside sound chamber 11.
In some embodiments, detection module 210 is used to detect the impedance curve of electro-acoustic element 20 and judges impedance song
Whether line matches with default impedance curve, judges that sound chamber 11 has liquid when impedance curve and default impedance curve mismatch.
When having liquid in sound chamber 11, the vibrating diaphragm of electro-acoustic element 20 is pressurized so that the amplitude of the vibrating diaphragm of electro-acoustic element 20 becomes
It is small, so that the impedance of electro-acoustic element 20 changes.Therefore, it is normal that electro-acoustic element 20 can be prestored in electronic installation 200
Impedance curve during work is as default impedance curve, resistance of the detection module 210 by the electro-acoustic element 20 detected at work
Anti- curve is compared with default impedance curve, you can judges whether there is liquid in sound chamber 11.
Refer to detecting mould it should be noted that detection module 210 detects that impedance curve matches with default impedance curve
Block 210 detects that impedance curve can be with roughly the same with default impedance curve, and detection module 210 detects impedance curve and differed
It is fixed to be overlapped with default impedance curve.
In one example, when having liquid and no liquid (i.e. normal) in sound chamber 11, the impedance curve of electro-acoustic element 20
As shown in figure 5, as seen from Figure 5, when having liquid and no liquid in sound chamber 11, the impedance curve of electro-acoustic element 20 is in the presence of poor
It is different, therefore, it can detect that in sound chamber 11 whether there is liquid according to the difference of the impedance curve of electro-acoustic element 20.
Specifically, Fig. 3 please be join, electronic installation 200 also includes circuit board 230, memory 240 and power circuit 250.Its
In, circuit board 230 is arranged in shell 202, and processor 220 and memory 240 are arranged on circuit board 230, power circuit 250
For each circuit or the device power supply for electronic installation 200.
In the description of this specification, reference term " embodiment ", " some embodiments ", " schematically implementation
The description of mode ", " example ", " specific example " or " some examples " etc. means with reference to the embodiment or example description
Specific features, structure, material or feature are contained at least one embodiment or example of the present utility model.In this explanation
In book, identical embodiment or example are not necessarily referring to the schematic representation of above-mentioned term.Moreover, the specific spy of description
Sign, structure, material or feature can combine in an appropriate manner in any one or more embodiments or example.
While there has been shown and described that embodiment of the present utility model, one of ordinary skill in the art can manage
Solution：A variety of to the progress of these embodiments can change in the case where not departing from principle and objective of the present utility model, change,
Replace and modification, the scope of the utility model are limited by claim and its equivalent.
Claims (11)
- A kind of 1. electro-acoustic conversion device, it is characterised in that including：Housing, the housing go out acoustic aperture formed with sound chamber and with what the sound chamber connected；Electro-acoustic element, the electro-acoustic element are arranged in the sound chamber；WithVibrating elements, the vibrating elements are fixed on the housing, and the vibrating elements is used to produce sound wave to be atomized entrance Liquid in the sound chamber so that the liquid after atomization pass through described in go out acoustic aperture and be expelled to outside the sound chamber.
- 2. electro-acoustic conversion device as claimed in claim 1, it is characterised in that the sound chamber include rear sound chamber and with it is described after sound The preceding sound chamber of chamber connection, the electro-acoustic element are housed in sound chamber in the rear, it is described go out acoustic aperture connect the preceding sound chamber.
- 3. electro-acoustic conversion device as claimed in claim 2, it is characterised in that the housing includes rear shell and fore shell, after described Shell connects the fore shell, and the rear shell surrounds the rear sound chamber, and the fore shell surrounds the preceding sound chamber, and the electro-acoustic element is set In the rear on shell, the vibrating elements is fixed on the fore shell.
- 4. electro-acoustic conversion device as claimed in claim 3, it is characterised in that the fore shell includes going out with the electro-acoustic element The relative vibrating reed in sound side, the vibrating elements are fixed on the vibrating reed.
- 5. electro-acoustic conversion device as claimed in claim 4, it is characterised in that the vibrating reed is steel disc.
- 6. electro-acoustic conversion device as claimed in claim 3, it is characterised in that the vibrating elements be located at the preceding sound intracavitary or Outside the preceding sound chamber.
- 7. electro-acoustic conversion device as claimed in claim 3, it is characterised in that the fore shell is structure as a whole.
- 8. electro-acoustic conversion device as claimed in claim 3, it is characterised in that it is described go out acoustic aperture by the fore shell and the rear shell Common limit is formed.
- A kind of 9. electronic installation, it is characterised in that including：Shell, the shell is formed with loud-speaker opening；WithElectro-acoustic conversion device described in claim 1-8 any one, the electro-acoustic conversion device are set in the housing, institute Acoustic aperture is stated out to connect with the loud-speaker opening.
- 10. electronic installation as claimed in claim 9, it is characterised in that the electronic installation includes：Detection module, the detection module are used for detecting in the sound chamber whether have liquid；WithProcessor, the processor are used to control the vibrating elements vibration when having liquid in the sound chamber to produce sound wave, So as to be atomized the liquid of the sound intracavitary.
- 11. electronic installation as claimed in claim 10, it is characterised in that the detection module is used to detect the electro-acoustic element Impedance curve, and judge whether the impedance curve matches with default impedance curve, the impedance curve with it is described default Impedance curve judges that the sound chamber has liquid when mismatching.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720595690.9U CN206743535U (en) | 2017-05-24 | 2017-05-24 | Electro-acoustic conversion device and electronic installation |
| EP18805013.2A EP3634011B1 (en) | 2017-05-24 | 2018-05-03 | Electro-acoustic transducer, and electronic device |
| PCT/CN2018/085507 WO2018214714A1 (en) | 2017-05-24 | 2018-05-03 | Electro-acoustic transducer, and electronic device |
| US16/674,865 US10863293B2 (en) | 2017-05-24 | 2019-11-05 | Electro-acoustic conversion device and terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720595690.9U CN206743535U (en) | 2017-05-24 | 2017-05-24 | Electro-acoustic conversion device and electronic installation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206743535U true CN206743535U (en) | 2017-12-12 |
Family
ID=60568029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720595690.9U Active CN206743535U (en) | 2017-05-24 | 2017-05-24 | Electro-acoustic conversion device and electronic installation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206743535U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107995571A (en) * | 2017-12-11 | 2018-05-04 | 广东欧珀移动通信有限公司 | Electronic device, electroacoustic component and its assemble method |
| WO2018214714A1 (en) * | 2017-05-24 | 2018-11-29 | Oppo广东移动通信有限公司 | Electro-acoustic transducer, and electronic device |
-
2017
- 2017-05-24 CN CN201720595690.9U patent/CN206743535U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018214714A1 (en) * | 2017-05-24 | 2018-11-29 | Oppo广东移动通信有限公司 | Electro-acoustic transducer, and electronic device |
| CN107995571A (en) * | 2017-12-11 | 2018-05-04 | 广东欧珀移动通信有限公司 | Electronic device, electroacoustic component and its assemble method |
| CN107995571B (en) * | 2017-12-11 | 2020-09-04 | Oppo广东移动通信有限公司 | Electronic device, electroacoustic assembly and assembling method thereof |
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Address after: Changan town in Guangdong province Dongguan 523860 usha Beach Road No. 18 Patentee after: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS Corp.,Ltd. Patentee after: KING TONE INNOVATION Address before: Changan town in Guangdong province Dongguan 523860 usha Beach Road No. 18 Patentee before: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS Corp.,Ltd. Patentee before: KING TONE INNOVATION |