CN207926857U - Sound-producing device monomer, earphone and electronic equipment - Google Patents
Sound-producing device monomer, earphone and electronic equipment Download PDFInfo
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- CN207926857U CN207926857U CN201721813021.0U CN201721813021U CN207926857U CN 207926857 U CN207926857 U CN 207926857U CN 201721813021 U CN201721813021 U CN 201721813021U CN 207926857 U CN207926857 U CN 207926857U
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- sound
- producing device
- hole
- absorbing material
- earphone
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Abstract
The utility model is related to a kind of sound-producing device monomer, earphone and electronic equipments.The sound-producing device monomer includes monomer shell, vibrational system and magnetic circuit system, and the vibrational system and the magnetic circuit system are located in the monomer shell, and hole is let out after being arranged on the monomer shell, lets out be filled with sound-absorbing material in hole in the rear.A technical problem to be solved in the utility model be at existing sound-producing device monomer shell after let out Kong Tai little, the gas be easy to causeing in the rear operatic tunes the lets out hole velocity of sound after passing through is larger, generate stream make an uproar.One purposes of utility model is to be used for electronic equipment.
Description
Technical field
The utility model is related to electroacoustic switch technology fields, more specifically, the utility model is related to a kind of sound-producing device lists
Body, earphone and electronic equipment.
Background technology
In the prior art, earphone back cavity is formed between the shell and earphone case of sound-producing device monomer.Sound-producing device list
Body is the conversion equipment for converting electrical energy into voice signal.It contains shell, vibrational system and magnetic circuit system.Wherein, it vibrates
System includes vibrating diaphragm and voice coil.Sound-producing device monomer is divided into and goes out the preceding operatic tunes and the rear operatic tunes that acoustic aperture is connected to by vibrating diaphragm.For
The air pressure of the operatic tunes and exterior space, after usually opening up on the shell lets out hole after balance.After let out hole and be connected to earphone back cavity.But
In traditional sound-producing device monomer at shell after let out hole and be respectively provided with smaller, so, in voice coil vibrations, hole is let out due to after
Too small, the gas be easy to causeing in the rear operatic tunes the lets out hole velocity of sound after passing through is larger, generates stream and makes an uproar, to reduce sound-producing device list
The acoustical behavior of body.
Utility model content
One purpose of the utility model is to provide the new technology side of a kind of sound-producing device monomer, earphone and electronic equipment
Case.
One side according to the present utility model provides a kind of sound-producing device monomer.The sound-producing device monomer includes monomer
Shell, vibrational system and magnetic circuit system, the vibrational system and the magnetic circuit system are located in the monomer shell, in the list
Hole is let out after being arranged in body case, lets out be filled with sound-absorbing material in hole in the rear.
Optionally, the sound-absorbing material be natural zeolite, activated carbon, white carbon, sepiolite cashmere and zeolite powder at least
It is a kind of.
Optionally, the sound-absorbing material is graininess, and granular sound-absorbing material is wrapped in non-woven fabrics.
Optionally, the sound-absorbing material is block structure, the structure of the sound-absorbing material with it is described after let out the structure phase in hole
Matching.
Optionally, three-dimensional channel is formed in the inside of the block structure, the three-dimensional channel is connected to earphone back cavity.
Optionally, let out after described hole be it is multiple, and it is multiple it is described after let out hole and be arranged uniformly around the magnetic circuit system.
Optionally, hole structure in a strip shape is let out after described.
Optionally, it lets out in the rear and is covered with screen cloth on the outside of hole.
Second aspect according to the present utility model provides a kind of earphone.The earphone includes that earphone case and this practicality are new
There is accommodating space, the sound-producing device monomer to be set for the inside of the sound-producing device monomer that type provides, the earphone case
It sets in the accommodating space.
The third aspect according to the present utility model, provides a kind of electronic equipment.The electronic equipment includes the utility model
The earphone provided.
One of the utility model has technical effect that, is let out after and fills sound-absorbing material in hole, has to gas certain
Adsorption function the adsorption function of sound-absorbing material for gaseous in hole is let out due to after, it is possible to reduce pass through in voice coil vibrations
The gas flow in hole is let out afterwards, is reduced after gas passes through and is let out the velocity of sound in hole, and then reduce the generation that stream is made an uproar, ensure that sound-producing device
The acoustical behavior of monomer.
In addition, sound-absorbing material has a large amount of microcellular structure, this makes the specific surface area of sound-absorbing material increase.Sound-absorbing material
Quick adsorption to air molecule and release have achieved the effect that the virtual volume of the operatic tunes after increasing, to reduce sounding dress
Set the resonant frequency f of monomer0, the all-bottom sound for improving sound-producing device monomer arbitrarily downgrades.
By referring to the drawings to the detailed description of the exemplary embodiment of the utility model, the utility model it is other
Feature and its advantage will become apparent.
Description of the drawings
The attached drawing of a part for constitution instruction 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 sectional view of the sound-producing device monomer of one embodiment according to the present utility model.
Fig. 2 is the vertical view of the sound-producing device monomer of one embodiment according to the present utility model.
Fig. 3 is the sectional view of the earphone of one embodiment according to the present utility model.
Fig. 4 is the sectional view of the sound-absorbing material of one embodiment according to the present utility model.
Reference sign：
11：Top dome；12：Monomer shell；13：Washer；14：Voice coil；15：Permanent magnet；16：Screen cloth；17：Sound-absorbing material；18：
Magnetic conductive board；19：Three-dimensional channel；20：Lower casing；21：Protecgulum； 22：Earphone back cavity；23：Vibrating diaphragm.
Specific implementation mode
The various exemplary embodiments of the utility model are described in detail now with reference to attached drawing.It should 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.
It is illustrative to the description only actually of at least one exemplary embodiment below, is never used as to this practicality
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.
In shown here and discussion all examples, any occurrence should be construed as merely illustrative, without
It is as limitation.Therefore, other examples of exemplary embodiment can have different values.
It should be noted that：Similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined, then it need not be further discussed in subsequent attached drawing in a attached drawing.
One embodiment according to the present utility model provides a kind of sound-producing device monomer.As shown in Figure 1, the monomer packet
Include monomer shell 12, vibrational system and magnetic circuit system.Monomer shell 12 forms frame structure.
Vibrational system includes vibrating diaphragm 23, top dome 11 and voice coil 14.Vibrating diaphragm 23 includes central part, around the folding of central part setting
Ring portion and the interconnecting piece being arranged around ring portion.Top dome 11 and voice coil 14 are bonded in central part.Edge part connects with shell
It connects, so that vibrational system is suspended above magnetic circuit system.Voice coil 14 is inserted into the magnetic gap of magnetic circuit system.
Magnetic circuit system includes magnetic conductive board 18 and permanent magnet 15.Permanent magnet 15 is arranged on magnetic conductive board 18.Magnetic conductive board 18 by
Permeability magnetic material is made.Magnetic conductive board 18 can gather magnetic induction line, to improve magnetic induction.Optionally, permanent magnet 15 is iron
Oxysome magnet or ndfeb magnet.Preferably, washer 13 is provided on permanent magnet 15, to improve magnetic induction.Permanent magnet 15
For three magnetic circuit systems or five magnetic circuit systems.Above two magnetic circuit system includes centring magnet and side magnet.During side magnet surrounds
Heart magnet is arranged.Magnetic gap is formed between centring magnet and side magnet.Magnetic field is formed in magnetic gap.
Permanent magnet may be single magnetic circuit system.In the magnetic circuit system, the shape between permanent magnet 15 and U iron or T iron
At magnetic gap.
Vibrational system and magnetic circuit system are located in monomer shell 12.Monomer shell 12 is configured to enclose with earphone case
Conjunction forms earphone back cavity 22.Let out hole after being arranged on monomer shell 12, and after let out the lower section that hole is located at ring, wherein ring lower section
It is ring close to the side of magnet system.It is let out after and is filled with sound-absorbing material 17 in hole.Wherein, sound-absorbing material 17 has gas
Certain adsorption function.
In the utility model embodiment, filling sound-absorbing material 17 in hole is let out after, and there is certain absorption to gas
Function, so that in voice coil vibrations, the adsorption function of sound-absorbing material for gaseous in hole is let out due to after, it is possible to reduce let out hole after
Gas flow, reduce after gas passes through and let out the velocity of sound in hole, and then reduce the generation that stream is made an uproar, ensure that sound-producing device monomer
Acoustical behavior.
In addition, sound-absorbing material 17 has a large amount of microcellular structure, this makes the specific surface area of sound-absorbing material 17 increase.Sound-absorbing
Quick adsorption and release of the material 17 to air molecule have achieved the effect that the virtual volume of the operatic tunes after increasing, to reduce
The resonant frequency f of sound-producing device monomer0, the all-bottom sound for improving sound-producing device monomer arbitrarily downgrades.
Optionally, sound-absorbing material 17 is at least one in natural zeolite, activated carbon, white carbon, sepiolite cashmere and zeolite powder
Kind.Above-mentioned material all has big specific surface area, can effectively increase the virtual volume of earphone back cavity 22.
In other examples, sound-absorbing material 17 is block structure.The structure of sound-absorbing material 17 lets out the structure phase in hole with after
Match.It refers to that let out at least local structure in hole with after consistent for the structure of block-like sound-absorbing material 17 to match, so that block-like
Sound-absorbing material 17 is let out after capable of being filled into hole.
For example, sound-absorbing material 17 is by least one of natural zeolite, activated carbon, white carbon, sepiolite cashmere and zeolite powder
Block-like structure is made.In assembling, let out in hole after being directly filled into block-like sound-absorbing material 17.Optionally, block-like suction
Sound material 17 and after let out to be formed between hole and be interference fitted so that sound-absorbing material 17 is let out after being fixed in hole；Alternatively, passing through binder
It is let out in hole after sound-absorbing material 17 is fixed on.
It is further preferred that as shown in figure 4, forming three-dimensional channel in the inside of block structure.After three-dimensional channel and earphone
Chamber is connected to.Each channel of three-dimensional channel can be interconnected, or be independent from each other.Three-dimensional channel can make sound
Air-flow is flowed rapidly into, is flowed out, to improve the mass-transfer efficiency and sound-absorbing effect of sound-absorbing material.Those skilled in the art can root
According to trend, the internal diameter etc. of actual needs setting three-dimensional channel.
Preferably, let out after hole be it is multiple, and it is multiple after let out hole uniformly around magnetic circuit system be arranged.Hole energy is let out after multiple
The outlet area for further increasing vibratory flow, keeps vibration outlet more smooth.
Being uniformly distributed for hole is let out after in addition, makes the air pressure of the rear operatic tunes more balanced, and this avoid vibrational systems due to gas
Pressure imbalance causes to polarize.
In one example, as shown in Fig. 2, after let out hole be strip structure.Optionally, it is linear strip or arc that hole is let out after
Shape strip.This structure can make full use of space so that after let out the sectional area bigger in hole, improve the filling of sound-absorbing material 17
Amount.
In other examples, the cross section that hole is let out after is circle, ellipse, regular polygon, triangle etc..Above-mentioned shape is same
Sample can play good ventilatory effect.
In one example, it as shown in Fig. 1 or 3, is let out after and is covered with screen cloth 16 on the outside of hole.It lets out afterwards on the outside of hole and refers to
The side of the separate vibrational system in hole is let out afterwards.Screen cloth 16 can effectively adjust damping, to improve the resistance of sound-producing device monomer
Buddhist nun's effect.For example, screen cloth 16 is made by sponge or foam.
Another embodiment according to the present utility model, provides a kind of earphone.As shown in figure 3, the earphone includes earphone
Shell and sound-producing device monomer provided by the utility model.The inside of earphone case has accommodating space.Sound-producing device monomer quilt
It is arranged in accommodating space.
Further, the monomer shell 12 of sound-producing device monomer is enclosed earphone back cavity 22 with earphone case.Ear casing
Body includes protecgulum 21 and lower casing 20.Protecgulum 21 and lower casing 20 snap together, to form accommodating space inside them.Protecgulum 21
With the sound outlet hole for being connected to accommodating space and external environment.
Hole is let out after at this point, to may be constructed such that for being connected to earphone back cavity 22.Wherein, monomer shell 12 can surround magnetic
Road system, monomer shell 12 are enclosed earphone back cavity 22 with earphone case.It is also possible that monomer shell 12 does not surround magnetic completely
Road system.Monomer shell 12, magnetic circuit system and earphone case surround earphone back cavity 22 together.
It should be noted that accommodating space is divided into the preceding operatic tunes and the rear operatic tunes by vibrating diaphragm 23.23 lower section of vibrating diaphragm is rear sound
Chamber.Earphone back cavity 22 is a part for the rear operatic tunes.Hole is let out after being provided on monomer shell 12.After let out hole connection sound-producing device list
The inside of body and earphone back cavity 22.It is let out after and is filled with sound-absorbing material 17 in hole.Kong Weisan are let out after for example, and after three
Hole is let out to be distributed around permanent magnet 15.It is let out after three and is filled with sound-absorbing material 17 in hole.Certainly, those skilled in the art can root
The number and shape in hole are let out after being arranged according to actual needs.
The earphone has the characteristics that noise is small, sounding effect is good.
Another embodiment according to the present utility model, provides a kind of electronic equipment.Electronic equipment can be but not office
It is limited to mobile phone, tablet computer, smartwatch, laptop, game machine, intercom etc..The electronic equipment includes that this practicality is new
The earphone that type provides.
Although some specific embodiments of the utility model are described in detail by example, this field
It is to be understood by the skilled artisans that above example merely to illustrate, 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 of, to above example
It modifies.The scope of the utility model is defined by the following claims.
Claims (10)
1. a kind of sound-producing device monomer, which is characterized in that including monomer shell, vibrational system and magnetic circuit system, the vibration system
System and the magnetic circuit system are located in the monomer shell, let out hole after being arranged on the monomer shell, let out in hole in the rear
Filled with sound-absorbing material.
2. sound-producing device monomer according to claim 1, which is characterized in that the sound-absorbing material is natural zeolite, activity
At least one of charcoal, white carbon, sepiolite cashmere and zeolite powder.
3. sound-producing device monomer according to claim 1, which is characterized in that the sound-absorbing material is graininess, graininess
Sound-absorbing material be wrapped in non-woven fabrics.
4. sound-producing device monomer according to claim 1, which is characterized in that the sound-absorbing material is block structure, described
The structure of sound-absorbing material with it is described after let out the structure in hole and match.
5. sound-producing device monomer according to claim 4, which is characterized in that form three-dimensional in the inside of the block structure
Channel, the three-dimensional channel are connected to earphone back cavity.
6. sound-producing device monomer according to claim 1, which is characterized in that it is multiple, and multiple institutes to let out hole after described
Hole is let out after stating uniformly around the magnetic circuit system to be arranged.
7. sound-producing device monomer according to claim 1, which is characterized in that let out hole structure in a strip shape after described.
8. sound-producing device monomer according to claim 1, which is characterized in that let out be covered with net on the outside of hole in the rear
Cloth.
9. a kind of earphone, which is characterized in that the sounding dress including earphone case and as described in any one in claim 1-8
Monomer is set, there is accommodating space, the sound-producing device monomer to be arranged in the accommodating space for the inside of the earphone case.
10. a kind of electronic equipment, which is characterized in that including earphone as claimed in claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721813021.0U CN207926857U (en) | 2017-12-21 | 2017-12-21 | Sound-producing device monomer, earphone and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721813021.0U CN207926857U (en) | 2017-12-21 | 2017-12-21 | Sound-producing device monomer, earphone and electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207926857U true CN207926857U (en) | 2018-09-28 |
Family
ID=63607031
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721813021.0U Active CN207926857U (en) | 2017-12-21 | 2017-12-21 | Sound-producing device monomer, earphone and electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207926857U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11671745B2 (en) | 2020-09-16 | 2023-06-06 | Apple Inc. | Headphone earcup with adsorptive material |
| US11968506B1 (en) | 2022-10-28 | 2024-04-23 | Shenzhen Shokz Co., Ltd. | Speakers |
-
2017
- 2017-12-21 CN CN201721813021.0U patent/CN207926857U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11671745B2 (en) | 2020-09-16 | 2023-06-06 | Apple Inc. | Headphone earcup with adsorptive material |
| US11968506B1 (en) | 2022-10-28 | 2024-04-23 | Shenzhen Shokz Co., Ltd. | Speakers |
| WO2024087492A1 (en) * | 2022-10-28 | 2024-05-02 | 深圳市韶音科技有限公司 | Sound production portion |
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