CN110022518A - A kind of low vortex magnetic loss armature device for electroacoustic transducer - Google Patents
A kind of low vortex magnetic loss armature device for electroacoustic transducer Download PDFInfo
- Publication number
- CN110022518A CN110022518A CN201910344569.2A CN201910344569A CN110022518A CN 110022518 A CN110022518 A CN 110022518A CN 201910344569 A CN201910344569 A CN 201910344569A CN 110022518 A CN110022518 A CN 110022518A
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- CN
- China
- Prior art keywords
- magnetic
- magnet
- magnetic conduction
- conduction sheet
- electroacoustic transducer
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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.)
- Granted
Links
- 235000014676 Phragmites communis Nutrition 0.000 claims abstract description 31
- 229910001017 Alperm Inorganic materials 0.000 claims description 4
- 239000011521 glass Substances 0.000 claims description 4
- 238000012216 screening Methods 0.000 claims description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims 2
- 229910052742 iron Inorganic materials 0.000 claims 1
- 230000035945 sensitivity Effects 0.000 abstract 1
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 description 12
- 238000010586 diagram Methods 0.000 description 4
- 238000000354 decomposition reaction Methods 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910001030 Iron–nickel alloy Inorganic materials 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
Classifications
-
- 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
- H04R9/06—Loudspeakers
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
The invention discloses a kind of low vortex magnetic loss armature devices for electroacoustic transducer, comprising: magnetic yoke, coil, vibrating reed, mechanical guide, the first magnet and the second magnet；The interior parallel of the magnetic yoke is provided with the first magnet and the second magnet, and the first magnet and the second magnet consistency from top to bottom；The air gap is formed between first magnet and the second magnet；In a side surface of the magnetic yoke, coil is set；The vibrating reed is U-shaped, and a short side of vibrating reed is fixed on the outer surface of magnetic yoke, and another long side passes through the position of coil intermediate hollow, and extends into the inside of magnetic yoke always also cross the air gap between the first magnet and the second magnet；The mechanical guide is arranged on the surface of vibrating reed longer sides.This invention removes the stiffness that rigidity avoids acoustics cavity, can be with the low frequency sensitivity of significant increase electroacoustic transducer.
Description
Technical field
The present invention relates to electroacoustic transducer technical fields, more particularly, to a kind of low vortex magnetic loss for electroacoustic transducer
Power consumption armature assembly.
Background technique
Traditional receiver armature is cast by a monolith iron-nickel alloy, at high cost, low output.And due to cutting greatly
Face, magnetic resistance are small.Under alternating electromagnetism field action in receiver work, magnetic flux passes through low-resistance section, and inside parts will form whirlpool
Stream reduces magnetic yoke to the bearing capacity of magnetic field energy, and receiver performance declines due to eddy-current loss.
Summary of the invention
The purpose of the present invention is to provide a kind of low vortex magnetic loss armature devices for electroacoustic transducer.
To achieve the above object, the present invention uses the following contents:
A kind of low vortex magnetic loss armature device for electroacoustic transducer, comprising: magnetic yoke, coil, vibrating reed, machinery are led
Bar, the first magnet and the second magnet；The interior parallel of the magnetic yoke is provided with the first magnet and the second magnet, and the first magnet
With the second magnet consistency from top to bottom；The air gap is formed between first magnet and the second magnet；In the side table of the magnetic yoke
Coil is arranged in face；The vibrating reed is U-shaped, and a short side of vibrating reed is fixed on the outer surface of magnetic yoke, and another long side passes through
The position of coil intermediate hollow, and the inside of magnetic yoke is extended into always also cross the sky between the first magnet and the second magnet
Gas gap；The mechanical guide is arranged on the surface of vibrating reed longer sides.
Preferably, the magnetic yoke includes hollow magnetic conduction sheet, magnetic conduction sheet, No.1 locating plate, No. two locating plates, No.1 impact
Screening glass and No. two surge protection pieces；It is provided in the two sides center of the No.1 locating plate and No. two locating plates convex
Ear；Convex block is provided in the position at the inside upper and lower sides center of the No.1 surge protection piece and No. two surge protection pieces；Institute
State the position of hollow magnetic conduction sheet, magnetic conduction sheet, No.1 locating plate, No. two locating plates, No.1 surge protection piece and No. two surge protection pieces
It sets and is from left to right arranged successively；The endpoint location of vibrating reed longer sides is arranged in the mechanical guide.
Preferably, the magnetic yoke includes hollow magnetic conduction sheet, magnetic conduction sheet, No.1 locating plate, No. two locating plates, No.1 opening
Magnetic conduction sheet and No. two opening magnetic conduction sheets；It is provided in the two sides center of the No.1 locating plate and No. two locating plates convex
Ear；Notch is offered in the upper center position of No.1 opening magnetic conduction sheet and No. two opening magnetic conduction sheets；The hollow is led
Magnetic sheet, magnetic conduction sheet, No.1 locating plate, No. two locating plates, No.1 opening magnetic conduction sheet and No. two opening magnetic conduction sheet position from a left side to
The right side is arranged successively；The middle part of vibrating reed is arranged in the mechanical guide, and passes through notch.
Preferably, the upper surface of first magnet is bonded with the inside upper surface of magnetic yoke；Under second magnet
Surface is bonded with the bottom inner surface of magnetic yoke.
Preferably, the magnetic yoke is made of Alperm.
Preferably, the hollow magnetic conduction sheet, magnetic conduction sheet, No.1 locating plate, No. two locating plates, No.1 surge protection piece and
Between No. two surge protection pieces together by riveting.
Preferably, the hollow magnetic conduction sheet, magnetic conduction sheet, No.1 locating plate, No. two locating plates, No.1 opening magnetic conduction sheet and
Between No. two opening magnetic conduction sheets together by riveting.
The invention has the following advantages that
Lamination proposed by the present invention rivets yoke design, not only at low cost, and yield is high, and can greatly reduce vortex damage
Consumption；The magnetic conductor for being designed as narrow section, long circuit of laminated magnetic conductive loop, when magnetic flux passes through narrow section, so that portion
Part magnetic resistance is larger, so that vortex greatly weakens.
Detailed description of the invention
Specific embodiments of the present invention will be described in further detail with reference to the accompanying drawing.
Fig. 1 is that a kind of the first case structure of the low vortex magnetic loss armature device for electroacoustic transducer of the present invention shows
It is intended to.
Fig. 2 is that a kind of the first case structure of the low vortex magnetic loss armature device for electroacoustic transducer of the present invention cuts open
Face figure.
Fig. 3 is the magnetic yoke structure schematic diagram of the first situation of the invention.
Fig. 4 is the magnetic yoke decomposition diagram of the first situation of the invention.
Fig. 5 is that a kind of the first case structure of the low vortex magnetic loss armature device for electroacoustic transducer of the present invention shows
It is intended to.
Fig. 6 is that a kind of the first case structure of the low vortex magnetic loss armature device for electroacoustic transducer of the present invention cuts open
Face figure.
Fig. 7 is the magnetic yoke structure schematic diagram of the first situation of the invention.
Fig. 8 is the magnetic yoke decomposition diagram of the first situation of the invention.
In figure, each appended drawing reference are as follows:
1- magnetic yoke, 2- coil, 3- vibrating reed, 4- mechanical guide, the first magnet of 5-, the second magnet of 6-, 11- hollow magnetic conduction
Piece, 12- magnetic conduction sheet, 13- No.1 locating plate, No. bis- locating plates of 14-, 15- No.1 surge protection piece, No. bis- surge protection pieces of 16-,
17- No.1 opening magnetic conduction sheet, No. bis- opening magnetic conduction sheets of 18-, 19- convex block, 20- lug, 21- notch.
Specific embodiment
In order to illustrate more clearly of the present invention, below with reference to preferred embodiment, the present invention is described further.Ability
Field technique personnel should be appreciated that following specifically described content is illustrative and be not restrictive, this should not be limited with this
The protection scope of invention.
Embodiment 1:
As shown in Figures 1 to 4, a kind of low vortex magnetic loss armature device for electroacoustic transducer includes: magnetic yoke 1, coil
2, vibrating reed 3, mechanical guide 4, the first magnet 5 and the second magnet 6；The interior parallel of the magnetic yoke 1 is provided with the first magnet 5
With the second magnet 6, and 6 consistency from top to bottom of the first magnet 5 and the second magnet；It is formed between first magnet 5 and the second magnet 6 empty
Gas gap；In a side surface of the magnetic yoke 1, coil is set；The vibrating reed 3 is U-shaped, and a short side of vibrating reed 3 is fixed on
On the outer surface of magnetic yoke 1, another long side passes through the position of coil intermediate hollow, and extends into the inside of magnetic yoke 1 always simultaneously
The air gap across the first magnet 5 and the second magnet 6；The surface of 3 longer sides of vibrating reed is arranged in the mechanical guide 4
On.
Further, the magnetic yoke 1 includes hollow magnetic conduction sheet 11,13, No. two magnetic conduction sheet 12, No.1 locating plate locating plates
14, No.1 surge protection piece 15 and No. two surge protection pieces 16；In the two sides of the No.1 locating plate 13 and No. two locating plates 14
Center is provided with lug 20；In the inside upper and lower sides of the No.1 surge protection piece 15 and No. two surge protection pieces 16
The position of the heart is provided with convex block 19；13, No. two the hollow magnetic conduction sheet 11, magnetic conduction sheet 12, No.1 locating plate locating plates 14, one
The position of number surge protection piece 15 and No. two surge protection pieces 16 is from left to right arranged successively；The setting of mechanical guide 4 is being shaken
The endpoint location of 3 longer sides of movable plate.
Further, the upper surface of first magnet 5 is bonded with the inside upper surface of magnetic yoke 1；Second magnet 6
Lower surface is bonded with the bottom inner surface of magnetic yoke 1.
Further, the magnetic yoke 1 is made of Alperm.
Further, the hollow magnetic conduction sheet 11, magnetic conduction sheet 12,13, No. two locating plates 14 of No.1 locating plate, No.1 impact
Between screening glass 15 and No. two surge protection pieces 16 together by riveting.
When in use, when vibrating reed 3 is by impact force in short-term, No.1 surge protection piece 15 and No. two surge protection pieces 16
On convex block 19 will limit the further movement of vibrating reed 3 and deformation so that vibrating reed 3 still maintains elastic deformation；In impact force
After, vibrating reed 3 restores to the original state, and the mechanical guide 4 of armature is located at the endpoint location of vibrating reed 3 at this time.
Embodiment 2:
As shown in Fig. 5 to 8, a kind of low vortex magnetic loss armature device for electroacoustic transducer includes: magnetic yoke 1, coil
2, vibrating reed 3, mechanical guide 4, the first magnet 5 and the second magnet 6；The interior parallel of the magnetic yoke 1 is provided with the first magnet 5
With the second magnet 6, and 6 consistency from top to bottom of the first magnet 5 and the second magnet；It is formed between first magnet 5 and the second magnet 6 empty
Gas gap；In a side surface of the magnetic yoke 1, coil 2 is set；The vibrating reed 3 is U-shaped, and a short side of vibrating reed 3 is fixed
On the outer surface of magnetic yoke 1, another long side passes through the position of 2 intermediate hollow of coil, and the inside for extending into magnetic yoke 1 always is same
When the air gap across the first magnet 5 and the second magnet 6；The table of 3 longer sides of vibrating reed is arranged in the mechanical guide 4
On face.
Further, the magnetic yoke 1 includes hollow magnetic conduction sheet 11,13, No. two magnetic conduction sheet 12, No.1 locating plate locating plates
14, No.1 opening magnetic conduction sheet 17 and No. two opening magnetic conduction sheets 18；In the two sides of the No.1 locating plate 13 and No. two locating plates 14
Center is provided with lug 20；In the upper center position of No.1 opening magnetic conduction sheet 17 and No. two opening magnetic conduction sheets 18
Offer notch 21；The hollow magnetic conduction sheet 11, magnetic conduction sheet 12,13, No. two locating plates 14 of No.1 locating plate, No.1 opening are led
The position of magnetic sheet 17 and No. two opening magnetic conduction sheets 18 is from left to right arranged successively；The mechanical guide 4 is arranged in vibrating reed 3
Portion, and pass through notch 21.
Further, the upper surface of first magnet 5 is bonded with the inside upper surface of magnetic yoke 1；Second magnet 6
Lower surface is bonded with the bottom inner surface of magnetic yoke 1.
Further, the magnetic yoke 1 is made of Alperm.
Further, the hollow magnetic conduction sheet 11, magnetic conduction sheet 12,13, No. two locating plates 14 of No.1 locating plate, No.1 opening
Between magnetic conduction sheet 17 and No. two opening magnetic conduction sheets 18 together by riveting.
When in use, the opening magnetic conduction sheet that there is magnetic yoke 1 two panels to be open C-shaped, respectively No.1 opening 17 He of magnetic conduction sheet
No. two opening magnetic conduction sheets 18；The effect of the opening is pierced by for the mechanical guide 4 of armature, forms the mode of middle part guide rod driving；
Mechanical guide 4 is located at the middle part of the vibration end of vibrating reed 3 at this time.
Obviously, the above embodiment of the present invention be only to clearly illustrate example of the present invention, and not be pair
The restriction of embodiments of the present invention may be used also on the basis of the above description for those of ordinary skill in the art
To make other variations or changes in different ways, all embodiments can not be exhaustive here, it is all to belong to this hair
The obvious changes or variations that bright technical solution is extended out are still in the scope of protection of the present invention.
Claims (7)
1. a kind of low vortex magnetic loss armature device for electroacoustic transducer characterized by comprising magnetic yoke, coil, vibration
Piece, mechanical guide, the first magnet and the second magnet；The interior parallel of the magnetic yoke is provided with the first magnet and the second magnet,
And first magnet and the second magnet consistency from top to bottom；The air gap is formed between first magnet and the second magnet；In the magnetic
Coil is arranged in one side surface of yoke；The vibrating reed is U-shaped, and a short side of vibrating reed is fixed on the outer surface of magnetic yoke, separately
One long side passes through the position of coil intermediate hollow, and extends into the inside of magnetic yoke always also cross the first magnet and the second magnetic
The air gap between iron；The mechanical guide is arranged on the surface of vibrating reed longer sides.
2. a kind of low vortex magnetic loss armature device for electroacoustic transducer according to claim 1, which is characterized in that
The magnetic yoke includes hollow magnetic conduction sheet, magnetic conduction sheet, No.1 locating plate, No. two locating plates, No.1 surge protection piece and No. two impacts
Screening glass；Lug is provided in the two sides center of the No.1 locating plate and No. two locating plates；It is impacted in the No.1
The position at the inside upper and lower sides center of screening glass and No. two surge protection pieces is provided with convex block；The hollow magnetic conduction sheet, magnetic conduction
Piece, No.1 locating plate, No. two locating plates, No.1 surge protection piece and No. two surge protection pieces position from left to right successively arrange
Column；The endpoint location of vibrating reed longer sides is arranged in the mechanical guide.
3. a kind of low vortex magnetic loss armature device for electroacoustic transducer according to claim 1, which is characterized in that
The magnetic yoke includes hollow magnetic conduction sheet, magnetic conduction sheet, No.1 locating plate, No. two locating plates, No.1 opening magnetic conduction sheet and No. two openings
Magnetic conduction sheet；Lug is provided in the two sides center of the No.1 locating plate and No. two locating plates；It is open in the No.1
The upper center position of magnetic conduction sheet and No. two opening magnetic conduction sheets offers notch；The hollow magnetic conduction sheet, magnetic conduction sheet, No.1 are fixed
Bit slice, No. two locating plates, No.1 opening magnetic conduction sheet and No. two opening magnetic conduction sheets position be from left to right arranged successively；The machinery
The middle part of vibrating reed is arranged in guide rod, and passes through notch.
4. a kind of low vortex magnetic loss armature device for electroacoustic transducer according to claim 1, which is characterized in that
The upper surface of first magnet is bonded with the inside upper surface of magnetic yoke；The lower surface of second magnet and the interior subordinate of magnetic yoke
Surface fitting.
5. a kind of low vortex magnetic loss armature device for electroacoustic transducer according to claim 1, which is characterized in that
The magnetic yoke is made of Alperm.
6. a kind of low vortex magnetic loss armature device for electroacoustic transducer according to claim 2, which is characterized in that
The hollow magnetic conduction sheet, magnetic conduction sheet, No.1 locating plate, No. two locating plates, No.1 surge protection piece and No. two surge protection pieces it
Between by riveting together.
7. a kind of low vortex magnetic loss armature device for electroacoustic transducer according to claim 3, which is characterized in that
The hollow magnetic conduction sheet, magnetic conduction sheet, No.1 locating plate, No. two locating plates, No.1 opening magnetic conduction sheet and No. two opening magnetic conduction sheets it
Between by riveting together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910344569.2A CN110022518B (en) | 2019-04-26 | 2019-04-26 | Low-eddy-current magnetic-loss armature device for electroacoustic transducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910344569.2A CN110022518B (en) | 2019-04-26 | 2019-04-26 | Low-eddy-current magnetic-loss armature device for electroacoustic transducer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110022518A true CN110022518A (en) | 2019-07-16 |
| CN110022518B CN110022518B (en) | 2024-04-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910344569.2A Active CN110022518B (en) | 2019-04-26 | 2019-04-26 | Low-eddy-current magnetic-loss armature device for electroacoustic transducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110022518B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008141274A (en) * | 2006-11-30 | 2008-06-19 | Citizen Electronics Co Ltd | Electroacoustic transducer |
| CN202679613U (en) * | 2012-01-04 | 2013-01-16 | 苏州恒听电子有限公司 | Mechanical-shock-resistance armature device for moving-iron type receiver/speaker |
| CN103024645A (en) * | 2011-09-27 | 2013-04-03 | 苏州新吴光电科技有限公司 | Magnetic yoke device for moving-iron type microphone/transducer |
| CN104301842A (en) * | 2014-10-08 | 2015-01-21 | 苏州亿欧得电子有限公司 | Electroacoustic transducer with impact protection function |
| KR101504708B1 (en) * | 2013-12-24 | 2015-03-20 | 주식회사 엠소닉 | Speaker |
| CN105228045A (en) * | 2015-09-30 | 2016-01-06 | 苏州亿欧得电子有限公司 | Self-align receiver |
| CN106714053A (en) * | 2016-11-29 | 2017-05-24 | 深圳倍声声学技术有限公司 | Moving iron type receiver |
| CN107135450A (en) * | 2017-06-02 | 2017-09-05 | 苏州亿欧得电子有限公司 | A kind of moving-iron receiver with new vibrating diaphragm support |
| CN207219037U (en) * | 2017-12-27 | 2018-04-10 | 王点 | A kind of blade of a sword iron, armature and receiver |
| CN209526881U (en) * | 2019-04-26 | 2019-10-22 | 苏州亿欧得电子有限公司 | A kind of low vortex magnetic loss armature device for electroacoustic transducer |
-
2019
- 2019-04-26 CN CN201910344569.2A patent/CN110022518B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008141274A (en) * | 2006-11-30 | 2008-06-19 | Citizen Electronics Co Ltd | Electroacoustic transducer |
| CN103024645A (en) * | 2011-09-27 | 2013-04-03 | 苏州新吴光电科技有限公司 | Magnetic yoke device for moving-iron type microphone/transducer |
| US20140153749A1 (en) * | 2011-09-27 | 2014-06-05 | Suzhou Shinwu Optronics Technology Co., Ltd | Magnetic yoke used for a moving-iron microphone/transducer |
| CN202679613U (en) * | 2012-01-04 | 2013-01-16 | 苏州恒听电子有限公司 | Mechanical-shock-resistance armature device for moving-iron type receiver/speaker |
| KR101504708B1 (en) * | 2013-12-24 | 2015-03-20 | 주식회사 엠소닉 | Speaker |
| CN104301842A (en) * | 2014-10-08 | 2015-01-21 | 苏州亿欧得电子有限公司 | Electroacoustic transducer with impact protection function |
| CN105228045A (en) * | 2015-09-30 | 2016-01-06 | 苏州亿欧得电子有限公司 | Self-align receiver |
| CN106714053A (en) * | 2016-11-29 | 2017-05-24 | 深圳倍声声学技术有限公司 | Moving iron type receiver |
| CN107135450A (en) * | 2017-06-02 | 2017-09-05 | 苏州亿欧得电子有限公司 | A kind of moving-iron receiver with new vibrating diaphragm support |
| CN207219037U (en) * | 2017-12-27 | 2018-04-10 | 王点 | A kind of blade of a sword iron, armature and receiver |
| CN209526881U (en) * | 2019-04-26 | 2019-10-22 | 苏州亿欧得电子有限公司 | A kind of low vortex magnetic loss armature device for electroacoustic transducer |
Non-Patent Citations (3)
| Title |
|---|
| G.M.SESSLER: "新的电声换能器件", 《电声技术》 * |
| XIAIDAN MIAO ET AL.: "Segmented magnetic circuit simulation of the large displacement planar micro-coil actuator enclosed magnetic-yokes", 《MICROELECTRONIC ENGINEERING》, vol. 129 * |
| 石奇超: "基于有限元分析的换能器磁致伸缩性能研究", 《万方学术》 * |
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| Publication number | Publication date |
|---|---|
| CN110022518B (en) | 2024-04-12 |
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