CN209314057U - Microphone device - Google Patents
Microphone device Download PDFInfo
- Publication number
- CN209314057U CN209314057U CN201822230053.9U CN201822230053U CN209314057U CN 209314057 U CN209314057 U CN 209314057U CN 201822230053 U CN201822230053 U CN 201822230053U CN 209314057 U CN209314057 U CN 209314057U
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- CN
- China
- Prior art keywords
- magnet steel
- iron core
- shell
- vibrating diaphragm
- vibration
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- 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.)
- Expired - Fee Related
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- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
The utility model provides a kind of microphone device comprising the vibrational system and magnetic circuit system for having the shell of accommodating space and being respectively accommodated in accommodating space；Vibrational system includes being fixed on shell and accommodating space being separated into the vibrating diaphragm of ante-chamber and back cavity and drives the coil block of diaphragm oscillations sounding, and coil block includes iron core and the coil around iron core setting；Magnetic circuit system includes being fixed on shell and opposite with coil block and spaced first magnet steel, the first magnet steel magnetize along the direction of vibration of vibrating diaphragm with iron core；Shell is equipped with the outlet sound mouth through thereon, and outlet sound mouth is connected to ante-chamber.Compared with the relevant technologies, the microphone device acoustical behavior of the utility model is good.
Description
[technical field]
The utility model relates to acoustic-electric field more particularly to a kind of microphone devices with portable electronic product.
[background technique]
With the arrival of mobile internet era, the quantity of Intelligent mobile equipment constantly rises.And in numerous mobile devices
Among, mobile phone is undoubtedly most common, most portable mobile terminal device.Microphone device for playing sound is widely applied
Among the Intelligent mobile equipments such as present mobile phone.
The microphone device of the relevant technologies includes frame, the vibrational system for being fixed on frame and the driving vibrational system vibration
The magnetic circuit system of dynamic sounding, the vibrational system include the vibrating diaphragm and the driving diaphragm oscillations sounding for being fixed on the frame
Voice coil, the magnetic circuit system include the main magnet steel and secondary magnetic for being fixed on the magnetic yoke of the frame and being individually fixed in the magnetic yoke
Steel.
However, in the related technology, under the influence of a magnetic field, to drive under the action of Ampere force after the voice coil energization
State diaphragm oscillations, however the driving force of the relevant technologies Ampere force is small, cause the vibrating diaphragm to be not easy to be driven and make vibration performance by
Limit, directly affects the acoustical behavior of the microphone device vibration sounding.
Therefore, it is really necessary to provide a kind of new microphone device solution above-mentioned technical problem.
[utility model content]
The purpose of this utility model is to provide a kind of good microphone devices of acoustical behavior.
In order to achieve the above objectives, the utility model provides a kind of microphone device comprising with accommodating space shell with
And it is respectively accommodated in vibrational system and magnetic circuit system in the accommodating space；The vibrational system includes being fixed on the shell
And the accommodating space is separated into the vibrating diaphragm of ante-chamber and back cavity and the coil block of the driving diaphragm oscillations sounding, it is described
Coil block includes iron core and the coil around iron core setting；The magnetic circuit system include be fixed on the shell and with
The coil block is opposite and spaced first magnet steel, and first magnet steel and the iron core are along the vibration vibration of membrane
It magnetizes in direction；The shell is equipped with the outlet sound mouth through thereon, and the outlet sound mouth is connected to the ante-chamber.
Preferably, the magnetic circuit system further includes being fixed on the shell and and interval setting opposite with the coil block
The second magnet steel, second magnet steel magnetizes along the direction of vibration of the vibrating diaphragm, and first magnet steel and second magnet steel
The vibrating diaphragm is located at along the opposite sides of direction of vibration, first magnet steel is opposite with the magnetic pole same sex of second magnet steel
Setting.
Preferably, first magnet steel is located in the back cavity, and second magnet steel is located in the ante-chamber.
Preferably, the shell includes upper cover and is covered on the upper cover and surrounds accommodating space jointly with the upper cover
Lower cover；The vibrating diaphragm is located between the upper cover and the lower cover, the vibrating diaphragm and the upper cover surround jointly it is described before
Chamber, the vibrating diaphragm and the lower cover surround the back cavity jointly, and the outlet sound mouth is arranged through the upper cover；First magnet steel
It is fixed on the lower cover, second magnet steel is fixed on the upper cover.
Preferably, first magnet steel and second magnet steel are arranged with the iron core face.
Compared with the relevant technologies, the microphone device of the utility model, the vibrational system includes being fixed on the shell simultaneously
The accommodating space is separated into the vibrating diaphragm of ante-chamber and back cavity and the coil block of the driving diaphragm oscillations sounding, the line
Coil assembly includes iron core and the coil around iron core setting；The magnetic circuit system include be fixed on the shell and with institute
State that coil block is opposite and spaced first magnet steel, first magnet steel and the iron core are along the vibration vibration of membrane side
To magnetizing.In above structure, the iron core may act as the magnet with magnetic pole after magnetizing, under the influence of a magnetic field, should
Between iron core and the magnetic circuit system homopolarity it is attracting or it is heteropolar repel each other so that the coil block along direction of vibration make above and below it is past
Multiple movement, to provide the driving force along direction of vibration for the vibrating diaphragm, the attracting driving force repelled each other of electromagnetism is big, so that described
Vibrating diaphragm is easy to be driven, to improve the vibration performance of the vibrational system, and then improves the acoustics of the microphone device
Energy.
[Detailed description of the invention]
It, below will be to required in embodiment description in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing to be used is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the utility model
Example is applied, it for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings
Obtain other attached drawings, in which:
Fig. 1 is the schematic perspective view of the utility model microphone device；
Fig. 2 is the stereochemical structure exploded view of the utility model microphone device；
Fig. 3 is the schematic diagram of the section structure of the utility model microphone device；
Fig. 4 is the schematic perspective view of another embodiment of the utility model microphone device；
Fig. 5 is the stereochemical structure exploded view of another embodiment of the utility model microphone device；
Fig. 6 is the schematic diagram of the section structure of another embodiment of the utility model microphone device.
[specific embodiment]
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describing, it is clear that described embodiment is only a part of the embodiment of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
All other embodiment obtained, fall within the protection scope of the utility model.
Please refer to shown in Fig. 1-3, the present invention provides a kind of microphone device 100 comprising shell 1, vibrational system 2 with
And magnetic circuit system 3.
The shell 1 has accommodating space 10, and it is empty that the vibrational system 2 and the magnetic circuit system 3 are contained in the receiving
Between in 10.The shell 1 can be structure as a whole, or separate structure.For example, in the present embodiment, the shell 1 is
Separate structure, i.e., the described shell 1 include upper cover 11 and are covered on the upper cover 11 and surround the accommodating space 10 jointly
Lower cover 12.
The vibrational system 2 includes being fixed on the shell 1 and the accommodating space 10 being separated into ante-chamber 101 and back cavity
The coil block 22 of 102 vibrating diaphragm 21 and driving 21 vibration sounding of vibrating diaphragm, the shell 1 are equipped with through speaking thereon
Mouth 110, the outlet sound mouth 110 is connected to the ante-chamber 101；The coil block 22 is including iron core 221 and surrounds the iron
The coil 222 that core 221 is arranged, the coil 222 magnetize to the iron core 221 after being powered.
Specifically, the vibrating diaphragm 21 is located between the upper cover 11 and the lower cover 12；The vibrating diaphragm 21 with it is described on
Lid 11 surrounds the ante-chamber 101 jointly, and the vibrating diaphragm 21 surrounds the back cavity 102, the outlet sound mouth with the lower cover 12 jointly
110 are arranged through the upper cover 11；Side vocal structure is collectively formed with the outlet sound mouth 110 in the ante-chamber 101.
The magnetic circuit system 3 includes being fixed on the shell 1 and opposite with the coil block 22 and spaced the
One magnet steel 31, direction of vibration of first magnet steel 31 with the iron core 221 along the vibrating diaphragm 21 magnetize.
Specifically, first magnet steel 31 is located in the back cavity 102 and is fixed on the lower cover 12, first magnet steel
31 close to the magnetic pole of the lower cover 12 be the pole S, is N far from the lower cover 12 and the magnetic pole of 22 face of coil block setting
Pole.
It should be noted that the iron core 221 is far from first magnet steel 31 when the coil 222 leads to forward current
Magnetic pole be the pole S, the magnetic pole of the iron core 221 and 31 face of the first magnet steel setting is the pole N, at this point, the iron core 221 with
First magnet steel 31 magnetic pole relative to each other is the pole N, generates homopolar-repulsion phenomenon, and the iron core 221 is obtained along vibration side
To repulsive force to be moved to far from the direction of first magnet steel 31, that is, drive the vibrating diaphragm 21 to transport upwards along direction of vibration
It is dynamic；When the coil 222 leads to reverse current, magnetic pole of the iron core 221 far from first magnet steel 31 is the pole N, the iron
Core 221 and the magnetic pole of 31 face of the first magnet steel setting are the pole S, at this point, the iron core 221 and first magnet steel 31 are each other
Opposite magnetic pole is respectively the pole S and the pole N, generates heteropolar phase suction phenomenon, the iron core 221 obtain the attraction along direction of vibration from
And moved to the direction close to first magnet steel 31, that is, drive the vibrating diaphragm 21 to move downward along direction of vibration；Therefore, pass through
222 indirect current of coil realizes 221 edge of iron core so that the polarity of 221 opposite end of the iron core substitutes
The reciprocating motion of direction of vibration, so that the vibrating diaphragm 21 realizes vibration.
In above structure, the iron core 221 may act as the magnet with magnetic pole, the effect in magnetic field after magnetizing
Under, between the iron core and the magnetic circuit system 3 homopolarity it is attracting or it is heteropolar repel each other so that the coil block 22 along direction of vibration make
Upper and lower reciprocating motion, to provide the driving force along direction of vibration, the attracting driving force repelled each other of electromagnetism for the vibrating diaphragm 21
Greatly, so that the vibrating diaphragm 21 is easy to be driven, to improve the vibration performance of the vibrational system 2, and then the hair is improved
The acoustical behavior of acoustic device 100.
Certainly, the fixed position of first magnet steel 31 is without being limited thereto, and first magnet steel 31 is fixed on the upper cover 11
It is also feasible.
It is noted that magnetic circuit system includes but is not limited to the first magnet steel, in actual use, in order to advanced optimize
The performance of vibrational system, magnetic circuit system can also add the second magnet steel being correspondingly arranged with the first magnet steel, and magnetic circuit system includes the
The technical solution of one magnet steel and the second magnet steel is unfolded to illustrate as another embodiment of the present invention, below with reference to Fig. 4-6:
In this embodiment, the magnetic circuit system 3 ' include be individually fixed in the shell 1 and with the coil block
22 opposite and spaced first magnet steel 31 and the second magnet steel 32, and first magnet steel 31 and second magnet steel 32 are distinguished
Positioned at the vibrating diaphragm 21 along the opposite sides of direction of vibration.
Specifically, first magnet steel 31 is located in the back cavity 102 and is fixed on the lower cover 12, second magnet steel
32 are located in the ante-chamber 101 and are fixed on the upper cover 11, first magnet steel 31 and second magnet steel 32 with it is described
The setting of 221 face of iron core.
The direction of vibration of first magnet steel 31, second magnet steel 32 with the iron core 221 along the vibrating diaphragm 21 fills
Magnetic.
Specifically, first magnet steel 31 is the pole S close to the magnetic pole of the lower cover 12, far from the lower cover 12 and the line
The magnetic pole of 22 face of coil assembly setting is the pole N, and the magnetic pole same sex of first magnet steel 31 and second magnet steel 32 is oppositely arranged,
I.e. described second magnet steel 32 magnetic pole opposite with first magnet steel 31 is the pole N.
It should be noted that the iron core 221 and first magnet steel 31 are just when the coil 222 leads to forward current
Magnetic pole to setting is the pole N, and the iron core 221 and the magnetic pole of 32 face of the second magnet steel setting are the pole S, at this point, the iron
Core 221 and first magnet steel 31 magnetic pole relative to each other are the pole N, generate homopolar-repulsion phenomenon, the iron core 221 with it is described
Second magnet steel 32 magnetic pole relative to each other is respectively the pole S and the pole N, generates heteropolar phase suction phenomenon, the iron core 221 in repulsive force and
The driving force upward along direction of vibration is obtained under attraction collective effect, and the vibrating diaphragm 21 is driven to move upwards along direction of vibration；
When the coil 222 leads to reverse current, the magnetic pole of the iron core 221 and 31 face of the first magnet steel setting is the pole S, described
Iron core 221 and the magnetic pole of 32 face of the second magnet steel setting are the pole N, at this point, the iron core 221 and first magnet steel 31 that
This opposite magnetic pole is respectively the pole S and the pole N, generates heteropolar phase suction phenomenon, the iron core 221 and second magnet steel 32 phase each other
Pair magnetic pole be the pole N, generate homopolar-repulsion phenomenon, the iron core 221 obtains edge under repulsive force and attraction collective effect
The downward driving force of direction of vibration drives the vibrating diaphragm 21 to move downward along direction of vibration；Therefore, logical by the coil 222
Alternating current realizes the iron core 221 along the past of direction of vibration so that the polarity of 221 opposite end of the iron core substitutes
Multiple movement, so that the vibrating diaphragm 21 realizes vibration.
In structure preferably, by the setting of first magnet steel 31 and second magnet steel 32, further
So that the magnetic field of the magnetic circuit system 3 ' is stronger, so that the iron core 221 after magnetizing obtains bigger driving under the magnetic field
Power to improve the vibration performance of the vibrational system 2, and then improves the acoustical behavior of the microphone device.
Compared with the relevant technologies, the microphone device of the utility model, the vibrational system includes being fixed on the shell simultaneously
The accommodating space is separated into the vibrating diaphragm of ante-chamber and back cavity and the coil block of the driving diaphragm oscillations sounding, the line
Coil assembly includes iron core and the coil around iron core setting；The magnetic circuit system include be fixed on the shell and with institute
State that coil block is opposite and spaced first magnet steel, first magnet steel and the iron core are along the vibration vibration of membrane side
To magnetizing.In above structure, the iron core may act as the magnet with magnetic pole after magnetizing, under the influence of a magnetic field, should
Between iron core and the magnetic circuit system homopolarity it is attracting or it is heteropolar repel each other so that the coil block along direction of vibration make above and below it is past
Multiple movement, to provide the driving force along direction of vibration for the vibrating diaphragm, the attracting driving force repelled each other of electromagnetism is big, so that described
Vibrating diaphragm is easy to be driven, to improve the vibration performance of the vibrational system, and then improves the acoustics of the microphone device
Energy.
Above-described is only the embodiments of the present invention, it should be noted here that for the ordinary skill of this field
For personnel, without departing from the concept of the present invention, improvement can also be made, but these belong to it is practical
Novel protection scope.
Claims (5)
1. a kind of microphone device comprising the vibration that there is the shell of accommodating space and be respectively accommodated in the accommodating space
System and magnetic circuit system, which is characterized in that the vibrational system includes being fixed on the shell and separating the accommodating space
At the vibrating diaphragm of ante-chamber and back cavity and the coil block of the driving diaphragm oscillations sounding, the coil block include iron core and
Around the coil of iron core setting；The magnetic circuit system include be fixed on the shell and it is opposite with the coil block and
Every the first magnet steel of setting, direction of vibration of first magnet steel with the iron core along the vibrating diaphragm magnetizes；The shell is set
There is the outlet sound mouth through thereon, the outlet sound mouth is connected to the ante-chamber.
2. microphone device according to claim 1, which is characterized in that the magnetic circuit system further includes being fixed on the shell
And the second magnet steel opposite and spaced with the coil block, second magnet steel are filled along the direction of vibration of the vibrating diaphragm
Magnetic, and first magnet steel and second magnet steel are located at the vibrating diaphragm along the opposite sides of direction of vibration, described first
The magnetic pole same sex of magnet steel and second magnet steel is oppositely arranged.
3. microphone device according to claim 2, which is characterized in that first magnet steel is located in the back cavity, described
Second magnet steel is located in the ante-chamber.
4. microphone device according to claim 3, which is characterized in that the shell includes upper cover and is covered on described
Upper cover described in Gai Bingyu surrounds the lower cover of accommodating space jointly；The vibrating diaphragm is located between the upper cover and the lower cover, institute
It states vibrating diaphragm and the upper cover surrounds the ante-chamber jointly, the vibrating diaphragm and the lower cover surround the back cavity jointly, described to speak
Mouth is arranged through the upper cover；First magnet steel is fixed on the lower cover, and second magnet steel is fixed on the upper cover.
5. microphone device according to claim 2, which is characterized in that first magnet steel and second magnet steel are and institute
State the setting of iron core face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822230053.9U CN209314057U (en) | 2018-12-27 | 2018-12-27 | Microphone device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822230053.9U CN209314057U (en) | 2018-12-27 | 2018-12-27 | Microphone device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209314057U true CN209314057U (en) | 2019-08-27 |
Family
ID=67679546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822230053.9U Expired - Fee Related CN209314057U (en) | 2018-12-27 | 2018-12-27 | Microphone device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209314057U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113794974A (en) * | 2021-09-29 | 2021-12-14 | 瑞声光电科技(常州)有限公司 | Multifunctional sounding device |
-
2018
- 2018-12-27 CN CN201822230053.9U patent/CN209314057U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113794974A (en) * | 2021-09-29 | 2021-12-14 | 瑞声光电科技(常州)有限公司 | Multifunctional sounding device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190827 Termination date: 20211227 |