CN106060736A - Balance armature receiver - Google Patents
Balance armature receiver Download PDFInfo
- Publication number
- CN106060736A CN106060736A CN201610503789.1A CN201610503789A CN106060736A CN 106060736 A CN106060736 A CN 106060736A CN 201610503789 A CN201610503789 A CN 201610503789A CN 106060736 A CN106060736 A CN 106060736A
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- CN
- China
- Prior art keywords
- magnet
- armature
- magnet segment
- ferrum
- sword
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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.)
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Classifications
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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
- H04R11/00—Transducers of moving-armature or moving-core type
- H04R11/02—Loudspeakers
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
- Dc Machiner (AREA)
Abstract
The embodiment of this invention discloses a balance armature receiver. The receiver comprises an armature, a magnet and a tubular yoke; a first magnet part of the magnet is a cuboid; the long side of the work plane of the first magnet part is parallel to the side of the armature; the short side of the work plane of the first magnet part is less than the inner tube width of the yoke; in other words, the first magnet part is not very close to or will not directly lay against the inner chamfer of the yoke, so that the intensity of the saturation zone of the direct current magnetic field of the inner chamfer of the yoke can be reduced; the saturation zone of the direct current magnetic field of the inner chamfer of the yoke can be even removed; the voice distortion situation happened in the traditional method can be reduced; and the sensitivity of the balance armature receiver can be improved.
Description
Technical field
The present invention relates to receiver field, particularly relate to a kind of balanced armature formula receiver.
Background technology
Balanced armature formula receiver (Balance Armature Receiver) is referred to as moving-iron type receiver.As
Shown in Fig. 1 a, balanced armature formula receiver mainly includes armature 1 (Armature), diaphragm 2 (Diaphragm) and Magnet 4
(Magnet) parts such as, wherein, two Magnet 4 are arranged in blade of a sword ferrum 5, such as shown in Fig. 1 b.When electric current is by being wound on armature 1
On coil time, can on armature 1 produce AC magnetic field, armature 1 is in the part between two Magnet 4 and can referred to as shake
The wing.Along with the change of AC magnetic field, the vibrations wing can do reciprocal vibrations between Magnet 4 under the effect of magnetic force.Shake the past of the wing
Multiple vibrations, by drive rod 3 (Drive Rod) band dynamic diaphragm 2, cause the vibrations of diaphragm.Can be by flat by the vibrations of diaphragm 2
Air in weighing apparatus armature type receiver's ante-chamber is discharged or is sucked, thus produces acoustic pressure at receiver's leading note mouth of pipe, sends sound wave.
In receiver's industry, a kind of traditional theory is that the sound pressure level of receiver is the biggest, and provide the user listens to experience
The best, therefore follow this when designing balanced armature formula receiver theoretical more.In order to improve the sound of balanced armature formula receiver
Arbitrarily downgrading, can realize by increasing D.C. magnetic field in balanced armature formula receiver, the relatively straightforward mode of one of which is exactly
In increase balanced armature formula receiver, Magnet is towards the area of armature one side.
In order to improve attractive in appearance, wear comfort, the volume of current balanced armature formula receiver is more and more less, causes balance electricity
Space in limited space in pivot formula receiver, especially blade of a sword ferrum.However, to ensure that sound pressure level, the size of Magnet needs for
Doing big, the peripheral rim portion causing Magnet will be very close to the interior chamfering of blade of a sword ferrum as far as possible.Balanced armature under the design of this structure
Formula receiver often there will be sounding distortion, and susceptiveness is the highest, and Consumer's Experience is the highest.
Summary of the invention
In order to solve above-mentioned technical problem, the invention provides a kind of balanced armature formula receiver, reduce traditional approach
The situation that the sounding distortion of middle appearance occurs, improves the sensitivity of this balanced armature formula receiver.
The embodiment of the invention discloses following technical scheme:
A kind of balanced armature formula receiver, described balanced armature formula receiver includes the blade of a sword ferrum of armature, Magnet and tubulose:
Described Magnet includes that the first magnet segment and the second magnet segment, described first magnet segment are cuboid, wherein
Described first magnet segment is rectangle towards the working face of described armature, the length of the working face of described first magnet segment
Limit is parallel with the side of described armature, and the bond length of the working face of described first magnet segment is less than in the pipe of described blade of a sword ferrum
Width.
Optionally, described pipe insied width be the pipe face part of described blade of a sword ferrum both sides in distance between chamfering, described pipe
Face is divided into the pipe face part for arranging described first magnet segment.
Optionally, during described first magnet segment and the second magnet segment are arranged at the pipe of described blade of a sword ferrum so that described
Armature projection on the working face of described second magnet segment is completely in described first magnet segment in the second magnet part
In the projection on working face divided.
Optionally, the bond length of the working face of described first magnet segment is more than or equal to the width of described armature.
Optionally, the size of described second magnet segment and described first magnet segment is equivalently-sized.
By technique scheme it can be seen that include in the balanced armature formula receiver of the blade of a sword ferrum of armature, Magnet and tubulose,
The first magnet segment included by this Magnet is cuboid, and the long limit of the working face of this first magnet segment and described armature
Side parallel, the bond length of the working face of described first magnet segment is less than the pipe insied width of described blade of a sword ferrum, namely
Say this first magnet segment will not very close to or lie directly against the interior chamfering of blade of a sword ferrum, thus in reducing blade of a sword ferrum at chamfering
The intensity of D.C. magnetic field zone of saturation, it might even be possible to remove the D.C. magnetic field zone of saturation at chamfering in blade of a sword ferrum, reduce tradition
The situation that the sounding distortion occurred in mode occurs, improves the sensitivity of this balanced armature formula receiver.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
In having technology to describe, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, also may be used
To obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 a is the structural representation of a kind of balanced armature formula receiver longitudinal cross-section；
Fig. 1 b is blade of a sword ferrum and the structural relation schematic diagram of Magnet in a kind of balanced armature formula receiver；
The structural representation of a kind of balanced armature formula receiver that Fig. 2 provides for the embodiment of the present invention；
The structural representation of a kind of balanced armature formula receiver's lateral cross section that Fig. 3 a provides for the embodiment of the present invention；
Fig. 3 b is the structural representation of a kind of balanced armature formula receiver's lateral cross section.
Detailed description of the invention
For making the purpose of the embodiment of the present invention, technical scheme and advantage clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is explicitly described, it is clear that described embodiment is the present invention
A part of embodiment rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not having
Make the every other embodiment obtained under creative work premise, broadly fall into the scope of protection of the invention.
In receiver's industry, generally believe that raising receiver's sound pressure level can improve receiver for listening to that user brings
Experience.For balanced armature formula receiver, it is mostly and is subject to increase balanced armature formula by the work area increasing Magnet
D.C. magnetic field in words device, thus the sound pressure level of receiver is improved with bigger D.C. magnetic field.
But the mode increasing magnet works area of this blindness causes balanced armature formula receiver's sounding on the contrary
Distortion, and the problem of susceptiveness step-down.For the balanced armature formula receiver of current common small size, this problem is the brightest
Aobvious.
Inventor finds, when in blade of a sword ferrum, space is less, the structure design of a lot of receivers will be arranged in blade of a sword ferrum
Magnet works area does greatly as far as possible, the even up to dimension limit within blade of a sword ferrum.In this case, the peripheral rim portion of Magnet
By very close to even lying directly against the interior chamfering of blade of a sword ferrum, such as shown in Fig. 1 b, the both sides of Magnet 4 the most closely blade of a sword ferrum 5
Interior chamfered area.
And, a lot of in the case of, Magnet can be set to working face for square by manufacturer so that four angles of Magnet are equal
The interior chamfering of blade of a sword ferrum may be propped up.Cause the D.C. magnetic field of chamfered part in blade of a sword ferrum saturated, such as in experimental simulation, this biography
Under system structure, in blade of a sword ferrum, the magnetic field intensity of chamfered part can reach 0.92T, the most closely saturation point of material
(1.18T)。
Saturated D.C. magnetic field can affect passing through of AC magnetic field in balanced armature formula receiver, thus affects balanced armature
, such as, there are the problems such as sounding distortion in formula receiver's sounding and sensitivity behaviour.
In order to solve this problem, inventor casts aside above-mentioned raising receiver's sound pressure level and can improve receiver and carry for user
The traditional theory listening to experience come.It go around, by changing the shape of Magnet, especially to Magnet relative to armature
Width is changed, thus the intensity of D.C. magnetic field zone of saturation at chamfering in reducing blade of a sword ferrum, it might even be possible to remove the blade of a sword
D.C. magnetic field zone of saturation at chamfering in ferrum.
To this end, embodiments provide a kind of balanced armature formula receiver, including the blade of a sword ferrum of armature, Magnet and tubulose
Balanced armature formula receiver in, the first magnet segment included by this Magnet is cuboid, and the work of this first magnet segment
The long limit making plane is parallel with the side of described armature, and the bond length of the working face of described first magnet segment is less than described
The pipe insied width of blade of a sword ferrum, say, that this first magnet segment will not very close to or lie directly against the interior chamfering of blade of a sword ferrum, from
And reduce in the blade of a sword ferrum intensity of the D.C. magnetic field zone of saturation at chamfering, it might even be possible to remove the DC magnetic at chamfering in blade of a sword ferrum
Zone of saturation, field, reduces the situation that the sounding distortion occurred in traditional approach occurs, improves this balanced armature formula receiver
Sensitivity.
The structural representation of a kind of balanced armature formula receiver that Fig. 2 provides for the embodiment of the present invention, this balanced armature formula
Receiver includes the blade of a sword ferrum 30 of armature 10, Magnet 20 and tubulose.
Magnet 20 includes the first magnet segment 21 and the second magnet segment 22, and the first magnet segment 21 is cuboid, wherein
First magnet segment 21 is rectangle towards the working face of armature 10, the long limit of the working face of the first magnet segment 21 and electricity
The side of pivot 10 is parallel, and the bond length of the working face of the first magnet segment 21 is less than the pipe insied width of blade of a sword ferrum 30.
Firstly the need of the side of clear and definite armature 10, generally, armature 10 is U-shaped, and armature 10 can show which U-shaped
One side be defined as the side of armature 10.
In balanced armature formula receiver, armature 10 is generally located on the first magnet segment 21 He for the vibrations wing of vibration
Between second magnet segment 22.First magnet segment 21 and the second magnet segment 22 have a plane respectively towards armature 10
The vibrations wing.Therefore the first magnet segment 21 shakes, towards armature 10, the working face that the one side of the wing can be the first magnet segment 21,
Second magnet segment 22 shakes, towards armature 10, the working face that the one side of the wing can be the second magnet segment 22.
Arranging the first magnet segment 21, the first magnet segment 21 is set to cuboid.By armature 10 with
The position relationship of the first magnet segment 21, the long limit of the working face of the i.e. first magnet segment 21 is parallel with the side of armature 10,
And armature 10 is to be inserted in blade of a sword ferrum 30 along blade of a sword ferrum 30 axial direction, say, that when the first magnet segment 21 is arranged on blade of a sword ferrum
Time in 30, the long limit of the working face of the first magnet segment 21 is consistent with the axial direction of blade of a sword ferrum 30.
Owing to the bond length of the working face of the first magnet segment 21 is less than the pipe insied width of blade of a sword ferrum 30, described here
Distance between chamfering in the both sides of the pipe face part that pipe insied width can be specially blade of a sword ferrum 30, this pipe face is divided into for arranging
The pipe face part of the first magnet segment 21.Make when the first magnet segment 21 is arranged in blade of a sword ferrum 30, the first magnet segment
The peripheral rim portion of 21 more can't will not lie directly against the interior chamfering of blade of a sword ferrum 30 particularly near the interior chamfering of blade of a sword ferrum 30.Here institute
The interior chamfering of the blade of a sword ferrum 30 stated refers to that the part of substantially bending occurs in blade of a sword ferrum 30 inner tube surface, and such as arriving blade of a sword ferrum 30 is square pipe
Time, interior chamfering is the part that blade of a sword ferrum 30 inner tube surface occurs close to 90 degree of bendings.Illustrating further combined with accompanying drawing, Fig. 3 a is the present invention
The structural representation of a kind of balanced armature formula receiver's lateral cross section that embodiment provides, it can be seen that the first magnet segment 21
Two lateral extent blade of a sword ferrum 30 interior chamfered area farther out, be not result in blade of a sword ferrum that the D.C. magnetic field at chamfering is the most saturated, Fig. 3 b
For the view in transverse section of conventional balanced armature type receiver, comparison chart 3a is it is apparent that the Magnet 4 in Fig. 3 b is apart from blade of a sword ferrum
The interior chamfered part of 5 is very near, can substantially cause in the blade of a sword ferrum D.C. magnetic field at chamfering to occur saturated.
Visible, it is arranged to the first magnet segment of cuboid and reduces in the blade of a sword ferrum D.C. magnetic field zone of saturation at chamfering
Intensity, it might even be possible to remove the D.C. magnetic field zone of saturation at chamfering in blade of a sword ferrum, reduces the sounding occurred in traditional approach and loses
True situation about occurring, improves the sensitivity of this balanced armature formula receiver.
And, it is foursquare Magnet relative to working face in traditional approach, the Magnet making cuboid can also enter
One step saves ferromagnetic material, reduces the cost of balanced armature formula receiver.
When the first magnet segment 21 and the second magnet segment 22 are arranged in the tubular structure in blade of a sword ferrum 30, the first Magnet
The centrage of part the 21, second magnet segment 22 and armature 10 can be in approximately the same plane, so that armature 10 is
Projection on the working face of two magnet segments 22 is completely in the first magnet segment 21 and puts down in the work of the second magnet segment 22
In projection on face.
Projection described here refers to forward projection, and such as armature 10 can be electricity in the projection of the second magnet segment 22
The pivot 10 projection on the working face being perpendicular to the second magnet segment 22.
It is to say, the width of the first magnet segment 21 can not be too narrow, otherwise sound pressure level will be difficult to ensure that, and Magnet 20 shape
The D.C. magnetic field become may be not enough to promote armature.
Visible, by Magnet is reduced, the part of the interior chamfering within blade of a sword ferrum 30 can be allowed no longer to occur that magnetic field is saturated, has
Effect is alleviated due to the saturated problem of dtmf distortion DTMF brought, but not the least Magnet contracting, Magnet minimum widith needs in vertical direction
Can cover armature, such D.C. magnetic field just can effectively promote armature.
Therefore optional, the bond length of the working face of the first magnet segment 21 is more than or equal to the width of armature 10.
It can be seen that the projection that armature is on the working face of this second magnet segment is completely in this first magnet segment
In projection on the working face of the second magnet segment so that the working face of Magnet be enough to cover in electricity in vertical direction
Pivot, thus balanced armature formula receiver is in a state more balanced, i.e. D.C. magnetic field and is unlikely to allow the interior chamfering of blade of a sword ferrum
The magnetic field in region is saturated, and AC magnetic field can effectively be passed through from interior chamfered area again, thus the D.C. magnetic field that Magnet is formed is still
Armature can be promoted, it is achieved the vocal function of this balanced armature formula receiver.
Accordingly, the size of the second magnet segment 22 included by Magnet 20 can also be with the size of the first magnet segment 21
Unanimously, thus symmetry be arranged on armature 10 vibrations the wing both sides.Sizing specification for the second magnet segment 22 can be joined
See the related description to the first magnet segment 21, repeat no more here.
It should be noted that each embodiment in this specification all uses the mode gone forward one by one to describe, each embodiment it
Between identical similar part see mutually, what each embodiment stressed is the difference with other embodiments.
Equipment described above and system embodiment are only schematically, the unit wherein illustrated as separating component can be or
Person may not be physically separate, and the parts shown as unit can be or may not be physical location.Permissible
Select some or all of module therein to realize the purpose of the present embodiment scheme according to the actual needs.The common skill in this area
Art personnel, in the case of not paying creative work, are i.e. appreciated that and implement.
The above, the only present invention preferably detailed description of the invention, but protection scope of the present invention is not limited thereto,
Any those familiar with the art in the technical scope that the invention discloses, the change that can readily occur in or replacement,
All should contain within protection scope of the present invention.Therefore, protection scope of the present invention should be with scope of the claims
It is as the criterion.
Claims (5)
1. a balanced armature formula receiver, it is characterised in that described balanced armature formula receiver includes armature, Magnet and tubulose
Blade of a sword ferrum:
Described Magnet includes the first magnet segment and the second magnet segment, and described first magnet segment is cuboid, wherein said
First magnet segment is rectangle towards the working face of described armature, the long limit of the working face of described first magnet segment with
The side of described armature is parallel, and the bond length of the working face of described first magnet segment is less than the pipe inner width of described blade of a sword ferrum
Degree.
Balanced armature formula receiver the most according to claim 1, it is characterised in that described pipe insied width is described blade of a sword ferrum
Distance between chamfering in the both sides of pipe face part, described pipe face is divided into the pipe face for arranging described first magnet segment
Point.
Balanced armature formula receiver the most according to claim 1, it is characterised in that described first magnet segment and the second magnetic
Ferrum part is arranged in the pipe of described blade of a sword ferrum so that the projection on the working face of described second magnet segment of the described armature
It is completely in the projection on the working face of the second magnet segment of described first magnet segment.
Balanced armature formula receiver the most according to claim 3, it is characterised in that the work of described first magnet segment is put down
The bond length in face is more than or equal to the width of described armature.
5. according to the balanced armature formula receiver described in Claims 1-4 any one, it is characterised in that described second Magnet
The size of part is equivalently-sized with described first magnet segment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610503789.1A CN106060736B (en) | 2016-06-30 | 2016-06-30 | Balanced armature type telephone receiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610503789.1A CN106060736B (en) | 2016-06-30 | 2016-06-30 | Balanced armature type telephone receiver |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106060736A true CN106060736A (en) | 2016-10-26 |
| CN106060736B CN106060736B (en) | 2021-03-23 |
Family
ID=57200485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610503789.1A Active CN106060736B (en) | 2016-06-30 | 2016-06-30 | Balanced armature type telephone receiver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106060736B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110933564A (en) * | 2019-11-26 | 2020-03-27 | 歌尔股份有限公司 | Magnetic conductive plate for sound production device and sound production device |
| CN111083610A (en) * | 2019-12-13 | 2020-04-28 | 瑞声科技(新加坡)有限公司 | Sound production device |
| CN114173266A (en) * | 2021-11-30 | 2022-03-11 | 苏州迪倍电子科技有限公司 | Jaw iron structure of moving iron horn |
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| CN103024647A (en) * | 2011-09-23 | 2013-04-03 | 苏州恒听电子有限公司 | Moving iron type microphone unit for bone-conduction hearing aid and loudspeaker |
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| US20140355815A1 (en) * | 2013-05-31 | 2014-12-04 | Lai-Shi HUNG | Innovative Magnetic Design for Speakers |
| CN205921746U (en) * | 2016-06-30 | 2017-02-01 | 苏州三色峰电子有限公司 | Balanced armature type receiver |
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|---|---|---|---|---|
| CN1969590A (en) * | 2004-06-14 | 2007-05-23 | 美商楼氏电子有限公司 | Magnet assembly for a transducer |
| CN102984613A (en) * | 2011-09-05 | 2013-03-20 | 索尼公司 | Driver unit and earphone device |
| CN103024647A (en) * | 2011-09-23 | 2013-04-03 | 苏州恒听电子有限公司 | Moving iron type microphone unit for bone-conduction hearing aid and loudspeaker |
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| US20140355815A1 (en) * | 2013-05-31 | 2014-12-04 | Lai-Shi HUNG | Innovative Magnetic Design for Speakers |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110933564A (en) * | 2019-11-26 | 2020-03-27 | 歌尔股份有限公司 | Magnetic conductive plate for sound production device and sound production device |
| CN111083610A (en) * | 2019-12-13 | 2020-04-28 | 瑞声科技(新加坡)有限公司 | Sound production device |
| CN114173266A (en) * | 2021-11-30 | 2022-03-11 | 苏州迪倍电子科技有限公司 | Jaw iron structure of moving iron horn |
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| Publication number | Publication date |
|---|---|
| CN106060736B (en) | 2021-03-23 |
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