CN209283487U - Two-sided microphone device and electronic product - Google Patents
Two-sided microphone device and electronic product Download PDFInfo
- Publication number
- CN209283487U CN209283487U CN201920066337.0U CN201920066337U CN209283487U CN 209283487 U CN209283487 U CN 209283487U CN 201920066337 U CN201920066337 U CN 201920066337U CN 209283487 U CN209283487 U CN 209283487U
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- Prior art keywords
- magnet
- support plate
- magnetic
- centring
- microphone device
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
- H04R9/04—Construction, mounting, or centering of coil
Abstract
The utility model relates to a kind of two-sided microphone device and electronic products.The two-sided microphone device includes: support plate, and the support plate is in slab construction；Magnetic circuit system, the magnetic circuit system includes side magnetic portion and two blocks of centring magnets, two blocks of centring magnets are arranged in the both side surface of the support plate, surface of the magnetizing direction of two blocks of centring magnets perpendicular to the support plate, side magnetic portion is looped around the side of two blocks of centring magnets, is formed with magnetic gap between the centring magnet and side magnetic portion；The vibration component of two groups of two sides for being located at the support plate, vibration component described in every group includes vibrating diaphragm and voice coil, and the voice coil is connected on the vibrating diaphragm, and two voice coils are suspended from respectively in the magnetic gap around two blocks of centring magnets.
Description
Technical field
The utility model belongs to technical field of electronic products, and specifically, the utility model relates to a kind of two-sided microphone devices
And electronic product.
Background technique
In recent years, the consumer electronics products such as mobile phone, tablet computer have obtained the extensive use of consumer.As electronics produces
The fast development of product the relevant technologies, in order to reach more preferably performance, the features such as those skilled in the art are to the structure of electronic product
It is improved.
In the prior art, those skilled in the art devise a kind of acoustical device of two-sided sounding.As shown in Figure 1, double
The acoustical device of face sounding is combined two sounding device monomers are back-to-back, and richer acoustics can be played
Performance.Existing two-sided sounding acoustic device generallys use the suspension bracket 01 with side wall, which is used to connect
Heart magnetic circuit component 02 and external magnetic circuit component 03.The size of the voice coil 04 of two sounding device monomers is different, and two voice coils 04 are distinguished
Inside and outside the side wall of the bracket 01.
But existing two-sided sounding acoustic device is there are fault of construction, existing design feature will cause internal magnetic circuit with
Spacing between external magnetic circuit is excessive, and the space placed for magnet is smaller, causes magnet volume small.Above structure defect will cause double
The magnetic property of face sounding acoustic device is poor, and effective magnetic field intensity obtained by two voice coils is small, the sound intensity of acoustical device
It is low.
Utility model content
One purpose of the utility model is to provide a kind of improved two-sided microphone device.
One aspect according to the present utility model provides a kind of two-sided microphone device, comprising:
Support plate, the support plate are in slab construction；
Magnetic circuit system, the magnetic circuit system include side magnetic portion and two blocks of centring magnets, and two pieces of centring magnet settings exist
In the both side surface of the support plate, the magnetizing directions of two blocks of centring magnets perpendicular to the support plate surface, it is described
Side magnetic portion is looped around the side of two blocks of centring magnets, is formed with magnetic gap between the centring magnet and side magnetic portion；
The vibration component of two groups of two sides for being located at the support plate, vibration component described in every group includes vibrating diaphragm and sound
Circle, the voice coil are connected on the vibrating diaphragm, and two voice coils are suspended from the magnetic gap around two blocks of centring magnets respectively
In.
Optionally, the size of two voice coils is identical.
Optionally, the size of two blocks of centring magnets is identical；And/or the close branch of two blocks of centring magnets
The magnetic pole of fagging is mutual opposite pole.
Optionally, the voice coil of two vibration components is configured as vibrating in the opposite direction simultaneously.
Optionally, the direction of winding of two voice coils is identical, and two voice coils are configured as the current signal being passed through
Direction it is identical；
Alternatively, the direction of winding of two voice coils is on the contrary, two voice coils are configured as the current signal being passed through
Direction is identical.
Optionally, side magnetic portion is annular magnetic conduction side wall.
Optionally, the magnet when magnetic portion includes two groups, two groups of side magnet are separately positioned on the two sides of the support plate
On surface, surface of the magnetizing direction of side magnet described in two groups perpendicular to the support plate, the close institute of side magnet described in two groups
The magnetic pole for stating support plate is the magnetic pole of phase heterogeneite；
The magnetic pole far from the support plate of side magnet described in each group is with its circular centring magnet far from described
The magnetic pole of support plate opposite pole each other.
Optionally, one group includes a magnet when structure in a ring in magnet；
Alternatively, the centring magnet is arranged in one group of magnet when magnet includes at least two blocks, every block of side magnet
Around.
Optionally, the magnet when magnetic portion is one group, the magnetizing direction of the side magnet is perpendicular to the support plate
Surface, the magnetic pole of the separate support plate of the centring magnet and the magnetic pole of the corresponding position of the side magnet are anisotropic each other
Magnetic pole.
It optionally, include a magnet when structure in a ring in magnet described in one group；
Alternatively, one group of magnet when magnet includes at least two blocks, every block of side magnet is arranged in two blocks of center magnetic
Around iron.
It optionally, further include shell, the support plate and the shell form relatively-stationary connection, wherein the branch
Fagging is made of permeability magnetic material, alternatively, the support plate is made of non-magnet material.
The utility model additionally provides a kind of electronic product, comprising:
Above-mentioned two-sided microphone device；
Product main body, the two-sided microphone device are arranged in the product main body, have in the product main body and speak
Mouthful, the sound outflow that the outlet sound mouth is generated for the two-sided microphone device.
One of the utility model has technical effect that the space utilization rate of two-sided microphone device is higher.
By the detailed description referring to the drawings to the exemplary embodiment of the utility model, the utility model it is other
Feature and its advantage will become apparent.
Detailed description of the invention
The attached drawing for constituting part of specification describes the embodiments of the present invention, and uses together with the description
In explanation the principles of the present invention.
Fig. 1 is the side cross sectional views of the acoustical device of two-sided sounding in the prior art；
Fig. 2 is the side cross sectional views for the two-sided microphone device that specific embodiment of the present invention provides；
Fig. 3 is the side cross sectional views for the two-sided microphone device that another specific embodiment of the utility model provides.
Specific embodiment
The various exemplary embodiments of the utility model are described in detail now with reference to attached drawing.It should also be noted that unless another
It illustrates outside, the component and the positioned opposite of step, numerical expression and numerical value otherwise illustrated in these embodiments is unlimited
The scope of the utility model processed.
Be to the description only actually of at least one exemplary embodiment below it is illustrative, never as to this is practical
Novel and its application or any restrictions used.
Technology and equipment known to person of ordinary skill in the relevant may be not discussed in detail, but in appropriate situation
Under, the technology and equipment should be considered as part of specification.
It is shown here and discuss all examples in, any occurrence should be construed as merely illustratively, without
It is as limitation.Therefore, other examples of exemplary embodiment can have different values.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, then in subsequent attached drawing does not need that it is further discussed.
The utility model provides a kind of two-sided microphone device, as shown in Figure 1, the two-sided microphone device include support plate 1,
Magnetic circuit system and two groups of vibration components.
The magnetic circuit system includes centring magnet 21 and side magnetic portion.In the two-sided microphone device, magnetic circuit system includes two
Block centring magnet 21.Two blocks of centring magnets 21 are separately positioned in the both side surface of the support plate 1.The support plate 1
In slab construction, be used to support centring magnet 21 and space can be saved.In the embodiment illustrated in fig. 2, in two pieces
Heart magnet 21 is separately positioned on the upper side and lower side of support plate 1.The support plate 1 is used to provide branch to the centring magnet 21
Support, fixed effect.Optionally, the edge of the support plate 1 can be fixed in two-sided microphone device, be made to provide support
With, and the support plate can be made of permeability magnetic material, alternatively, the support plate can also be made of non-magnet material.Especially
Ground, the magnetizing direction of two blocks of centring magnets 21 are each perpendicular to the surface of the support plate 1.Namely pole orientation is perpendicular to support plate
1 surface.
Particularly, the magnetic pole close to the support plate 1 of two blocks of centring magnets 21 is the magnetic pole of phase heterogeneite.Such as figure
Shown in 2, the pole orientation of the centring magnet 21 above support plate 1 is N under upper S, the centring magnet positioned at 1 lower section of support plate
21 pole orientation is also N under upper S, and two centring magnets 21 magnetic pole close to each other with support plate 1 is opposite pole.Such as scheming
In embodiment shown in 3, the pole orientation of the centring magnet 21 above support plate 1 is S under upper N, is located under support plate 1
The pole orientation of the centring magnet 21 of side is also S under upper N, and the magnetic pole close to support plate 1 is mutual opposite pole.It is set by this
Meter mode enables upper and lower two blocks of centring magnets to be combined into a whole magnet, improves the magnetic circuit in two-sided microphone device
Continuity and globality.It can be improved the magnetic field utilization rate in two-sided microphone device.
Side magnetic portion is in the side of the centring magnet, and side magnetic portion is centered around two pieces of centers in circular form
Around magnet.The specific constructive form in the utility model not opposite side magnetic portion is limited, and different side magnetic portion structures has not
Same advantage, suitable for different products.The subsequent specific structure embodiment for being provided with optional side magnetic portion of the utility model.
Magnetic gap is formed between side magnetic portion and the side wall of the centring magnet, side magnetic portion is made of permeability magnetic material, is made
It obtains side magnetic portion and magnetic portion in center is formed with magnetic field at the magnetic gap.
Vibration component described in above-mentioned two groups is located at the two sides of the support plate 1, and every group of vibration component includes vibrating diaphragm
31 and voice coil 32, as shown in Figure 2,3, the voice coil 32 with its corresponding to vibrating diaphragm 31 formed and connect.Based on above-mentioned whole design,
Two-sided microphone device in the present embodiment provides support to two blocks of identical centring magnets using support plate, relative to traditional structure
It is middle that gap between internal magnetic circuit and external magnetic circuit can reduce using the pipe-hanging hook 01 for having side wall, enhance the magnetic in magnetic gap
Field intensity promotes the loudness of microphone device；Or on the other hand, magnet volume can be increased in identical space, together
The magnetic field strength in magnetic gap can be enhanced in sample, promotes the loudness of microphone device.
Specifically, in the present embodiment, size, the shape of two blocks of centring magnets 21 can accomplish identical, further, be based on
Shape, the size of two blocks of centring magnets are identical, corresponding to two blocks of centring magnets formed magnetic gap be also of similar shape and
Size.Size, the shape of two voice coils 32 are identical, and two voice coils 32 are suspended from respectively in two magnetic gap.It adopts
With equal voice coil designed greatly, space is saved, the space utilization rate in two-sided microphone device is improved.
Moreover, by the configuration of the pole orientation to centring magnet, so that two blocks of centring magnets form one piece of complete, body
The bigger magnet of product, can effectively improve the magnetic field utilization rate in two-sided microphone device, provide stronger magnetic field for voice coil, in turn
Improve the vibration performance of voice coil and vibrating diaphragm.
Preferably, the voice coil 32 of two vibration components and vibrating diaphragm 31 are configured to shake in the opposite direction simultaneously
It is dynamic.For example, the voice coil 32 and vibrating diaphragm 31 that are located above, when upward vibration, underlying voice coil 32 and vibrating diaphragm 31 are downward
Vibration.This preferred embodiment can make two-sided microphone device improve acoustic pressure.In the two-way being passed through for generating sound
In the identical situation of current signal, two groups of vibration components can generate identical amplitude, so that the sound pressure energy of two-sided microphone device
It is enough to be superimposed at double, the loudness of two-sided microphone device is significantly increased.
Optionally, the direction of winding of two be assemblied in two-sided microphone device the voice coil 32 can be it is identical, and
The direction for the current signal for generating sound being passed through is also identical.In this way, as shown in Figure 2,3, due to centring magnet 21
Above-mentioned magnetic pole characteristic distributions so that magnetic direction in the magnetic gap being located above and the magnetic field in underlying magnetic gap
It is contrary, according to left hand rule, so that the direction of vibration of two vibration components is opposite.
In another optional embodiment, it is assemblied in the direction of winding of two voice coils in two-sided microphone device
It can be opposite, and the direction for the current signal for generating sound being passed through is also identical.In this way it is also possible that two
The direction of vibration of a vibration component is opposite.
For the structure type in side magnetic portion, the utility model provides following several optional embodiments.
In a kind of optional embodiment, side magnetic portion can be the annular magnetic conduction side wall an of entirety.The annular
The height of magnetic conduction side wall at least corresponds to the sum of thickness and thickness of support plate of two blocks of centring magnets.The annular magnetic conduction of the one
Side wall is looped around around two centring magnets, forms magnetic gap with two centring magnets respectively.Annular magnetic conduction side wall
The part for being used to carry centring magnet of support plate can also be surrounded wherein, can be set on annular magnetic conduction side wall for support
The notch or opening that the part-structure of plate stretches out.Correspondingly, it also can have in the support plate for extending out to annular magnetic conduction
Except the circular space of side wall, so as to the part-structure being fixedly connected in two-sided microphone device.Due to two centers
Magnet is capable of forming a whole magnet, therefore is surrounded on surrounding annular magnetic conduction side wall and is also capable of forming a whole magnetic
Body.The advantages of this embodiment, is that the amount of parts of two-sided microphone device is few, can simplify assembly technology, saves empty
Between.Globality, the continuity of magnetic circuit are more preferable, improve the application efficiency in magnetic field.
In another optional embodiment, side magnetic portion may include two annular magnetic conduction side walls, two annulars
Magnetic conduction side wall is separately positioned in the both side surface of the support plate.Two annular magnetic conduction side walls respectively with two centring magnets one
One is corresponding, by corresponding centring magnet around with wherein.The advantages of this embodiment, is that two annular magnetic conduction side walls are seperated
Formula setting, without opening up the notch stretched out for it for support plate.The difficulty of processing of annular magnetic conduction side wall is reduced, and can
Reduce the case where magnetic field of centring magnet is to outward leakage.
In another optional embodiment, the magnet 22 when magnetic portion includes two groups.Side magnet 22 described in two groups
It is separately positioned in the both side surface of the support plate 1, as shown in Figure 2,3.The magnetizing direction of side magnet 22 described in two groups is vertical
In the surface of the support plate 1, the magnetic pole close to the support plate 1 of side magnet 22 described in two groups is the magnetic pole of mutually abnormity.
As shown in Fig. 2, the side magnet 22 for being located at about 1 two sides of support plate is the magnetic pole distribution mode of S under upper N.As shown in figure 3, position
Side magnet 22 in about 1 two sides of support plate is the magnetic pole distribution mode of N under upper S.Moreover, the separate branch of side magnet 22
The magnetic pole of fagging 1, magnetic pole with its circular centring magnet 21 far from the support plate 1 opposite pole each other.Such as Fig. 2 institute
Show, the upper magnetic pole of the side magnet 22 of 1 top of support plate is N, and the upper magnetic pole of the centring magnet 21 of 1 top of support plate is S.Support plate
The lower magnetic pole of the side magnet 22 of 1 lower section is S, and the lower magnetic pole of the centring magnet 21 of 1 lower section of support plate is N.As shown in figure 3, support
The upper magnetic pole of the side magnet 22 of 1 top of plate is S, and the upper magnetic pole of the centring magnet 21 of 1 top of support plate is N.1 lower section of support plate
The lower magnetic pole of side magnet 22 is N, and the lower magnetic pole of the centring magnet 21 of 1 lower section of support plate is S.By this magnetic pole distribution mode,
Be capable of forming in magnetic gap between side magnet 22 and centring magnet 21 as Fig. 2,3 dotted line shown in magnetic field.Upper and lower two groups of sides
Magnet 22 forms a whole magnet and centring magnet 21 forms and cooperates, thus increase magnetic field strength, the region of magnetic field covering
Increase, the overall sensitivity and loudness of two-sided microphone device can be effectively improved.
In another optional embodiment, the magnet when magnetic portion can also be one group, the thickness of the side magnet
At least equal to the sum of the thickness of two blocks of centring magnets and thickness of support plate.Side magnet is directly in around two blocks of centring magnets
Position at.Magnetic circuit cooperation is formed by this group of side magnet and two centring magnets.Particularly, the side of magnetizing of the side magnet
To the surface perpendicular to the support plate, the magnetic pole far from the support plate of the centring magnet is corresponding with the side magnet
Magnetic pole at position opposite pole each other.For example, the upper magnetic pole of side magnet is N, then positioned at the centring magnet of the upside of support plate
Upper magnetic pole be S.The lower magnetic pole of side magnet is S, then the lower magnetic pole positioned at the centring magnet of the downside of support plate is N.This magnetic
Road distribution enables to the side magnet and centring magnet to form whole, complete magnetic loop.
For the above-mentioned embodiment using side magnet, the side magnet can be annular edge magnet, be also possible to fission
The side magnet of formula.Using annular edge magnet, then assembly technology is simpler, and magnetic gap is longer, helps to improve the vibration spirit of voice coil
Sensitivity.If using split type side magnet, every group of magnet when magnet includes at least two blocks.One group of side magnet with it is symmetrical,
Centrosymmetric form is circumferentially positioned at around the centring magnet.It is to be convenient for sound using the advantages of split type side magnet
The lead drawn on circle extends to the position except the magnetic portion of side, be also convenient for for the part-structure of support plate extending out to side magnetic portion it
Outside.
Optionally, the two-sided microphone device can also include shell, and the shell is for carrying support plate, magnetic circuit system
And vibration component.The support plate can form relatively-stationary connection with the shell.For example, support plate extends directly into
It is fixedly connected on shell or support plate loads between two blocks of centring magnets and side magnet, the side magnet below support plate
It forms a fixed connection with centring magnet and shell.
Optionally, center magnetic conductive board can also be covered on the surface far from the support plate 1 of the centring magnet 21
211, as shown in Figure 2,3.The center magnetic conductive board 211 be configurable for centring magnet 21 generate magnetic field play constraint,
Magnetic field is oriented to the position in the side magnetic portion of magnetic gap and periphery by the effect of concentration.
Optionally, in the embodiment using side magnet, it can also cover and set on two end faces up and down of the side magnet
There is side magnetic conductive board 221, as shown in Figure 2,3.It plays about in the magnetic field that the side magnetic conductive board 221 is configurable for the generation of opposite side magnet
Magnetic field is oriented to the position of the centring magnet 21 of magnetic gap and central area by the effect of beam, concentration.
It is that it is possible to effectively improve magnetic field strength and magnetic in magnetic gap using the advantages of center magnetic conductive board and side magnetic conductive board
Field uniformity coefficient, enables voice coil by stronger Lorentz force, and then be converted to the amplitude of vibration.It can be with using magnetic conductive board
The magnetic field more effectively generated using magnet.
The utility model additionally provides a kind of electronic product, which can be mobile phone, tablet computer etc., this is practical
It is novel to be limited not to this.Electronic product includes product main body and above-mentioned two-sided microphone device.Two-sided microphone device setting exists
In the product main body.There is outlet sound mouth, the sound that the outlet sound mouth is generated for the two-sided microphone device passes in product main body
Out.
Although being described in detail by some specific embodiments of the example to the utility model, this field
It is to be understood by the skilled artisans that above example merely to be illustrated, rather than in order to limit the scope of the utility model.This
Field it is to be understood by the skilled artisans that can not depart from the scope of the utility model and spirit in the case where, to above embodiments
It modifies.The scope of the utility model is defined by the following claims.
Claims (12)
1. a kind of two-sided microphone device characterized by comprising
Support plate, the support plate are in slab construction；
Magnetic circuit system, the magnetic circuit system include side magnetic portion and two blocks of centring magnets, and two blocks of centring magnets are arranged described
In the both side surface of support plate, surface of the magnetizing direction of two blocks of centring magnets perpendicular to the support plate, the side magnetic
Portion is looped around the side of two blocks of centring magnets, is formed with magnetic gap between the centring magnet and side magnetic portion；
The vibration component of two groups of two sides for being located at the support plate, vibration component described in every group includes vibrating diaphragm and voice coil, institute
It states voice coil to be connected on the vibrating diaphragm, two voice coils are suspended from respectively in the magnetic gap around two blocks of centring magnets.
2. two-sided microphone device according to claim 1, which is characterized in that the size of two voice coils is identical.
3. two-sided microphone device according to claim 1, which is characterized in that the size of two blocks of centring magnets is identical；
And/or the magnetic pole close to the support plate of two blocks of centring magnets is mutual opposite pole.
4. two-sided microphone device according to claim 1, which is characterized in that the voice coil of two vibration components is configured
To vibrate in the opposite direction simultaneously.
5. two-sided microphone device according to claim 4, which is characterized in that the direction of winding of two voice coils is identical,
The direction that two voice coils are configured as the current signal being passed through is identical；
Alternatively, the direction of winding of two voice coils is on the contrary, two voice coils are configured as the direction for the current signal being passed through
It is identical.
6. two-sided microphone device according to any one of claims 1 to 5, which is characterized in that side magnetic portion is annular magnetic conduction
Side wall.
7. two-sided microphone device according to any one of claims 1 to 5, which is characterized in that described when magnetic portion includes two groups
Magnet, two groups of side magnet are separately positioned in the both side surface of the support plate, and the magnetizing direction of side magnet described in two groups is vertical
In the surface of the support plate, the magnetic pole close to the support plate of side magnet described in two groups is the magnetic pole of phase heterogeneite；
The separate support of the magnetic pole and its circular centring magnet far from the support plate of side magnet described in each group
The magnetic pole of plate opposite pole each other.
8. two-sided microphone device according to claim 7, which is characterized in that one group of side magnet includes a structure in a ring
Side magnet；
Alternatively, one group of magnet when magnet includes at least two blocks, every block of side magnet are arranged in around the centring magnet.
9. two-sided microphone device according to any one of claims 1 to 5, which is characterized in that the magnetic when magnetic portion is one group
Iron, the magnetizing direction of the side magnet perpendicular to the support plate surface, the centring magnet far from the support plate
The magnetic pole of the corresponding position of magnetic pole and side magnet opposite pole each other.
10. two-sided microphone device according to claim 9, which is characterized in that it is in ring that side magnet described in one group, which includes one,
The side magnet of shape structure；
Alternatively, two blocks of centring magnets are arranged in one group of magnet when magnet includes at least two blocks, every block of side magnet
Around.
11. two-sided microphone device according to any one of claims 1 to 5, which is characterized in that it further include shell, the support
Plate and the shell form relatively-stationary connection, wherein the support plate is made of permeability magnetic material, alternatively, the support plate
It is made of non-magnet material.
12. a kind of electronic product characterized by comprising
Two-sided microphone device described in claim 1-11 is one of any；
Product main body, the two-sided microphone device are arranged in the product main body, have outlet sound mouth, institute in the product main body
State the sound outflow that outlet sound mouth is generated for the two-sided microphone device.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920066337.0U CN209283487U (en) | 2019-01-15 | 2019-01-15 | Two-sided microphone device and electronic product |
| PCT/CN2019/128431 WO2020147539A1 (en) | 2019-01-15 | 2019-12-25 | Device that generates sound from both sides, and electronic product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920066337.0U CN209283487U (en) | 2019-01-15 | 2019-01-15 | Two-sided microphone device and electronic product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209283487U true CN209283487U (en) | 2019-08-20 |
Family
ID=67605541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920066337.0U Active CN209283487U (en) | 2019-01-15 | 2019-01-15 | Two-sided microphone device and electronic product |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN209283487U (en) |
| WO (1) | WO2020147539A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110430510A (en) * | 2019-08-29 | 2019-11-08 | 无锡杰夫电声股份有限公司 | A kind of double-side radiation sound driver |
| WO2020147539A1 (en) * | 2019-01-15 | 2020-07-23 | 歌尔股份有限公司 | Device that generates sound from both sides, and electronic product |
| CN111901735A (en) * | 2020-09-30 | 2020-11-06 | 歌尔股份有限公司 | Sound generator and electronic product comprising same |
| CN112383853A (en) * | 2020-11-30 | 2021-02-19 | 瑞声新能源发展(常州)有限公司科教城分公司 | Sound producing device |
| CN113099362A (en) * | 2021-03-31 | 2021-07-09 | 歌尔股份有限公司 | Sound producing device |
| WO2021174576A1 (en) * | 2020-03-05 | 2021-09-10 | 瑞声声学科技(深圳)有限公司 | Sound production device |
| CN113891222A (en) * | 2021-10-15 | 2022-01-04 | 东莞市格雷特电子科技有限公司 | Ultra-thin bass unit with series magnetic circuits |
| CN114501245A (en) * | 2021-06-02 | 2022-05-13 | 荣耀终端有限公司 | Kernel, loudspeaker module and electronic equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2790087Y (en) * | 2005-03-17 | 2006-06-21 | 浙江新嘉联电子股份有限公司 | Internal magnetic type double-side electroacoustic converter |
| JP5311836B2 (en) * | 2008-01-28 | 2013-10-09 | 三洋電機株式会社 | Magnetic circuits and audio equipment |
| CN206820948U (en) * | 2017-04-28 | 2017-12-29 | 北京欧意智能科技有限公司 | Planar diaphragm speaker and earphone |
| CN108882089B (en) * | 2018-06-29 | 2020-04-24 | 维沃移动通信有限公司 | Receiver and mobile terminal |
| CN209283487U (en) * | 2019-01-15 | 2019-08-20 | 歌尔科技有限公司 | Two-sided microphone device and electronic product |
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2019
- 2019-01-15 CN CN201920066337.0U patent/CN209283487U/en active Active
- 2019-12-25 WO PCT/CN2019/128431 patent/WO2020147539A1/en active Application Filing
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| WO2020147539A1 (en) * | 2019-01-15 | 2020-07-23 | 歌尔股份有限公司 | Device that generates sound from both sides, and electronic product |
| CN110430510A (en) * | 2019-08-29 | 2019-11-08 | 无锡杰夫电声股份有限公司 | A kind of double-side radiation sound driver |
| WO2021174576A1 (en) * | 2020-03-05 | 2021-09-10 | 瑞声声学科技(深圳)有限公司 | Sound production device |
| CN111901735B (en) * | 2020-09-30 | 2020-12-18 | 歌尔股份有限公司 | Sound generator and electronic product comprising same |
| CN111901735A (en) * | 2020-09-30 | 2020-11-06 | 歌尔股份有限公司 | Sound generator and electronic product comprising same |
| WO2022068081A1 (en) * | 2020-09-30 | 2022-04-07 | 歌尔股份有限公司 | Sound generator, and electronic product comprising same |
| CN112383853A (en) * | 2020-11-30 | 2021-02-19 | 瑞声新能源发展(常州)有限公司科教城分公司 | Sound producing device |
| CN113099362A (en) * | 2021-03-31 | 2021-07-09 | 歌尔股份有限公司 | Sound producing device |
| CN113099362B (en) * | 2021-03-31 | 2022-07-22 | 歌尔股份有限公司 | Sound producing device |
| CN114501245A (en) * | 2021-06-02 | 2022-05-13 | 荣耀终端有限公司 | Kernel, loudspeaker module and electronic equipment |
| WO2022252666A1 (en) * | 2021-06-02 | 2022-12-08 | 北京荣耀终端有限公司 | Inner core, loudspeaker module, and electronic device |
| CN114501245B (en) * | 2021-06-02 | 2023-06-09 | 北京荣耀终端有限公司 | Kernel, loudspeaker module and electronic equipment |
| CN113891222A (en) * | 2021-10-15 | 2022-01-04 | 东莞市格雷特电子科技有限公司 | Ultra-thin bass unit with series magnetic circuits |
| CN113891222B (en) * | 2021-10-15 | 2024-01-26 | 东莞市格雷特电子科技有限公司 | Ultra-thin bass unit with series magnetic circuit |
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|---|---|
| WO2020147539A1 (en) | 2020-07-23 |
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