CN104301842B - Electroacoustic transducer with surge protection - Google Patents
Electroacoustic transducer with surge protection Download PDFInfo
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- CN104301842B CN104301842B CN201410523326.2A CN201410523326A CN104301842B CN 104301842 B CN104301842 B CN 104301842B CN 201410523326 A CN201410523326 A CN 201410523326A CN 104301842 B CN104301842 B CN 104301842B
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- surge protection
- electroacoustic transducer
- reed
- leg
- vibrating membrane
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Abstract
The invention discloses the electroacoustic transducer with surge protection, transducer housing defines volume and inner surface, and chamber is provided for electroacoustic transducer；Magnet assembly, including a pair of of driving magnet and a pair of yoke for being distributed in its outside and being attached thereto；Vibrating membrane, vibration membrane part are fixed with inner walls；Motor sub-assembly, including coil body, reed, connector, the reed is divided into fixed leg, mobile leg, connection end, and the reed fixed leg is fixed on the outside of yoke, and mobile leg is connected by connector with vibrating membrane；Surge protection component; including the first surge protection and the second surge protection; first surge protection and the asymmetric setting of the second surge protection; coil winding mold design need not consider symmetrical precision; the auxiliary assembly mold of high symmetry is not required in energy converter when assembling; design cost is greatly reduced, while greatly promotes the quality of product.
Description
Technical field
The present invention relates to electroacoustic transducers, relate more specifically to a kind of electroacoustic transducer influenced from shock loading.
Background technology
When energy converter drops to ground or is subject to fiercely to rock in use, the internal spring for energy conversion
Piece will be subject to great instantaneous impact and generate movement, if no surge protection reed will it is excessive due to motion amplitude and
Permanent deformation is generated, transducer sensitivity is caused to reduce, distortion increase.
Existing energy converter surge protection is symmetric design.By adding in glue during coil-winding, dried in winding mould
Shaping.Due to this symmetric form surge protection, it is intended to effectively protect reed when being hit, it is necessary to which the impact of coil winding mold is protected
Symmetry of the shield design with height, high to the plastic mould forming requirements of coil-winding, cost is very high.Meanwhile in transducing
Also high degree of symmetry of auxiliary assembly mold is needed in device production process, it is high to the plastic molding requirement of assembly mold, into
This is very high.Finished transducer can cause the bad and unilateral interference of symmetry of assembling due to this assembling uncontrollable variation of processing procedure
Abnormal sound is caused, influences energy converter quality.
The content of the invention
The present invention provides a kind of electroacoustic transduction with Asymmetric Shocks protection to solve deficiency of the prior art
Device, coil winding mold design need not consider symmetrical precision, and the auxiliary assembly mold of high symmetry is not required in energy converter when assembling,
Design cost is greatly reduced, while greatly promotes the quality of product.
In order to achieve the above objectives, the technical solution adopted by the present invention is：
A kind of electroacoustic transducer with surge protection, including transducer housing, magnet assembly, vibrating membrane, motor sub-assembly.
Transducer housing defines volume and inner surface, provides chamber for electroacoustic transducer, various shapes can be made in transducer housing
Shape, as cylindrical shape, D types, trapezoidal, generally square, cast or it is any desired by geometry, the scale of transducer housing and big
It is small to be based on intended application, operating condition, required component etc. and change.
Magnet assembly, including a pair of of driving magnet and a pair of yoke for being distributed in its outside and being attached thereto, driving magnet
Enough electromagnetic fluxs are provided, magnet assembly can generally form the shape and structure of corresponding housing 1, but can also be formed and met not
With the variously-shaped and size of embodiment, driving magnet is mounted on the defined position of yoke.
Vibrating membrane, vibrating membrane outer perimeter section are fixed with inner walls, and any suitable fixing means may be employed and be fixed on
The inner wall of housing such as by intersection of the glue coated in vibrating membrane outer ring and housing, is consolidated vibrating membrane and inner walls after drying
It is fixed.
Motor sub-assembly, including coil body, reed, connector, reed is usually U-shaped band, and those skilled in the art will manage
Solution, reed can be E types or other different structures, and the reed is divided into fixed leg, mobile leg, connection end, institute
The reed fixed leg stated is fixed on the outside of yoke, and mobile leg is connected by connector with vibrating membrane, and connector is usually by all
Parallel rapidoprint such as the sheet of metal or paper tinsel is made, and preferably earth connection and vibrating membrane and mobile leg are rigid connection.
Surge protection component, including the first surge protection and the second surge protection, first surge protection and second
The asymmetric setting of surge protection, coil winding mold design need not consider symmetrical precision, need not be high symmetrical when energy converter assembles
The auxiliary assembly mold of degree greatly reduces design cost, while greatly promotes the quality of product.
As a kind of preferred embodiment of the electroacoustic transducer of the present invention with surge protection, the described first impact
Protection is arranged on the inside of magnet, and second surge protection is arranged on the inside of heteropleural coil body, herein and other parts herein
The inside mentioned refers to that, close to the one side of mobile leg, the outside refers to the one side away from mobile leg.When the first punching
It hits protection to be arranged on the inside of the magnet on the upside of mobile leg, the second surge protection is arranged on the inside of the coil body on the downside of certain leg
When, the mobile leg of reed is subject to impact force to move upwards, and mobile leg touches the first surge protection after moving a certain distance
Stopping continues up；The mobile leg of reed is subject to impact force to move downward, and mobile leg is touched after moving a certain distance
Continue to move downward to the stopping of the second surge protection, reed will not be excessive because of displacement so that connection end internal stress is more than material
Material yield stress and permanent deformation occurs, prevent energy converter sensitivity and distortion since impact is affected, so as to play pair
The effect of energy converter surge protection.Further, first surge protection is made of non-magnetic alloy, the preferably first punching
It hits protection to be made of either aluminum or copper, can be made highly in 0.03-0.05mm, the disk of a diameter of 0.5-0.7mm, also may be used certainly
The sheet or other structures of our any common other shapes to be made as needed, second surge protection is by glue
Formed, preferred second surge protection in coiling, flowed by the glue that is coated on coil designed on winding former it is anti-
In surge protection feature slot, it is molded after drying, the protecting against shock protection feature slot is that a height is 0.03-0.05mm's
Groove, preferred recess width is 0.05-0.15mm, length 0.5-1.5mm, and the second surge protection of formation corresponds to for groove
Bulge-structure.
As a kind of preferred embodiment of the electroacoustic transducer of the present invention with surge protection, the described first impact
Protection is arranged on the inner walls of vibrating membrane opposite, and second surge protection is in the coil body on the downside of mobile leg
Side when the mobile leg of reed is subject to impact force to move upwards, since mobile leg is connected by connector with vibrating membrane, is moved
Dynamic leg drives vibrating membrane to touch the stopping of the first surge protection after moving a certain distance and continues up；When the movement of reed
When leg is subject to the impact force to move downward, mobile leg touched after moving a certain distance the second surge protection stop continuing it is downward
Movement, reed excessive because of displacement will not be more than material yield stress and permanent deformation occur so that connecting end internal stress,
The sensitivity and distortion for preventing energy converter are affected due to impacting, so as to play the role of to energy converter surge protection.Into one
Step ground, first surge protection are made of non-magnetic alloy, and second surge protection is formed by glue.
As a kind of preferred embodiment of the electroacoustic transducer of the present invention with surge protection, the described first impact
Protection is arranged on the inner walls of vibrating membrane opposite, and second surge protection is arranged on the inside of the magnet on the downside of mobile leg,
It is mobile since mobile leg is connected by connector with vibrating membrane when the mobile leg of reed is subject to impact force to move upwards
Leg drives vibrating membrane to touch the stopping of the first surge protection after moving a certain distance and continues up；When the mobile leg of reed
When portion is subject to the impact force to move downward, mobile leg touches the second surge protection and stops continuing fortune downwards after moving a certain distance
Dynamic, reed excessive because of displacement will not be more than material yield stress and permanent deformation occur so that connecting end internal stress, prevent
Only energy converter sensitivity and distortion due to impact be affected, so as to play the role of to energy converter surge protection.Further
Ground, first surge protection and the second surge protection are made of non-magnetic alloy.
Advantageous effect：
Electroacoustic transducer of the present invention with surge protection is rushed using asymmetrical first surge protection and second
It hits protection to protect reed, reed will not be excessive because of displacement so that connection end internal stress is more than material yield stress
And permanent deformation occurs, the sensitivity and distortion for preventing energy converter are affected due to impacting, and energy converter is impacted so as to play
The effect of protection, coil winding mold design need not consider symmetrical precision, and the auxiliary of high symmetry is not required in energy converter when assembling
Assembly mold greatly reduces design cost, while greatly promotes the quality of product.
Description of the drawings
Fig. 1 is a kind of electroacoustic transducer exploded perspective view with surge protection.
Fig. 2 is the schematic cross-section of electroacoustic transducer structure shown in Fig. 1.
Fig. 3 is the schematic cross-section of electroacoustic transducer structure described in embodiment 2.
Fig. 4 is the schematic cross-section of electroacoustic transducer structure described in embodiment 3.
Fig. 5 is the schematic cross-section of electroacoustic transducer structure described in embodiment 4.
Wherein：1st, housing 2, magnet assembly 21,21 ', driving magnet 22, yoke 3, vibrating membrane 31, vibration
Film frame 41, coil body 42, reed 421, fixed leg 422, mobile leg 423, connection end 51, the
One surge protection 52, the second surge protection
These attached drawings have not necessarily been drawn to scale, disclosed embodiment sometimes by graphical sysmbol, dotted line, figure represent and
Partial view is shown, under specific circumstances, may have been omitted the details in these figures, these details are for punching disclosed in understanding
It is unnecessary to hit protection component.It should be appreciated that the disclosure is not limited to illustrate in the accompanying drawings and disclosed specific embodiment again.
In brief, it should be apparent to those skilled in the art that a large amount of variations will fall into the spirit and model of the disclosure and appended claims
Within enclosing.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and detailed description.
Embodiment 1
As shown in Figures 1 and 2, a kind of electroacoustic transducer with surge protection, the transducer designs can be applied to send words
In the equipment such as device, microphone, receiver, loud speaker, accelerometer.Energy converter in such as hearing aid, inner ear type watch-dog, wear
Formula earphone, electronic listening protection device in the equipment such as small-scale sound speaker are even useful.
Electroacoustic transducer with surge protection includes transducer housing 1, magnet assembly 2, vibrating membrane 3, motor sub-assembly, magnetic
Property component 2, vibrating membrane 3, motor sub-assembly are installed in transducer housing 1, and vibrating membrane 3 is externally provided with vibrating membrane frame 31, housing 1
It is made of upper shell, lower housing, motor sub-assembly includes coil body 41, reed 42 and connector（It is not drawn into figure）, magnetic group
Part 2 includes a pair of of driving magnet 21,21 ' and a pair of yoke 22 for being distributed in its outside and being attached thereto, magnet assembly 2 and line
41 parallel arranged of body is enclosed, reed 42 divides for fixed leg 421, mobile leg 422, connection end 423, mobile 422 end of leg
End passes through connector（It is not drawn into figure）It is connected with vibrating membrane 3, when mobile leg 423 vibrates, causes connector（In figure
It is not drawn into）Vibration, vibrating membrane 3 is in response to connector（It is not drawn into figure）Corresponding movement and move.It is fixed in 21 inside of magnet
It sets and the first surge protection 51 is made by non-magnetic alloy, the second surge protection 52 is equipped in 41 inside of coil body.This implementation
The first surge protection 51 is made of copper in case, is highly 0.038mm, the disk of a diameter of 0.508mm, naturally it is also possible to according to
Need to be made the sheet or other structures of our any common other shapes.Second surge protection 52 be in coiling,
It is flowed into the protecting against shock protection feature slot designed on winding former, is molded after drying, this implementation by the glue being coated on coil
In example the second surge protection 52 for being formed be the height formed on coil be 0.038mm, width 0.1mm, length are the convex of 1mm
It rises.
When the mobile leg of reed is subject to impact force to move upwards, mobile leg touches first after moving a certain distance
Surge protection stopping continues up；When the mobile leg of reed is subject to impact force to move downward, mobile leg movement one
It touches the stopping of the second surge protection after set a distance to continue to move downward, reed will not be excessive because of displacement so that in connection end
Portion's stress is more than material yield stress and permanent deformation occurs, and the sensitivity and distortion for preventing energy converter are subject to shadow due to impacting
It rings, so as to play the role of to energy converter surge protection.
Embodiment 2
Fig. 3 illustrates another electroacoustic transducer structure with surge protection, in the inner walls of 3 opposite of vibrating membrane
The first surge protection 51 is equipped with, the second surge protection 52 is equipped in 41 inside of coil body, other structures are identical with Fig. 1,
When the mobile leg 422 of reed 42 is subject to impact force to move upwards, since mobile leg 422 passes through connector（It is not drawn in figure
Go out）It is connected with vibrating membrane 3, the mobile drive of leg 422 vibrating membrane 3 touches the first surge protection 51 after moving a certain distance to be stopped
It continues up；When the mobile leg 422 of reed 42 is subject to impact force to move downward, a spacing is moved in mobile leg 422
It touches the stopping of the second surge protection 52 from after to continue to move downward, reed 42 will not be excessive because of displacement so that in connection end
Portion's stress is more than material yield stress and permanent deformation occurs, and the sensitivity and distortion for preventing energy converter are subject to shadow due to impacting
It rings, so as to play the role of to energy converter surge protection.Further, first surge protection 51 is by non-magnetic alloy system
Into the shape and manufacturing process of the first surge protection 51 are identical with the first surge protection in embodiment 1, and the described second impact is protected
Shield is formed by glue, and forming process is identical with the second surge protection forming process in embodiment 1.
Embodiment 3
Fig. 4 illustrates another electroacoustic transducer for carrying surge protection, is set in the inner walls of 3 opposite of vibrating membrane
There is the first surge protection 51, the second surge protection 52, the first impact are made by non-magnetic alloy in 21 ' inside fixed setting of magnet
Shape and forming process of the protection 51 with the second surge protection 52 and the first surge protection shape and forming process phase in embodiment 1
Together.
When the mobile leg 422 of reed 42 is subject to impact force to move upwards, due to mobile leg 422 by connector with
Vibrating membrane 3 connects, and mobile leg 422 drives vibrating membrane 3 to touch the stopping continuation of the first surge protection 51 after moving a certain distance
It moves upwards；When the mobile leg 422 of reed is subject to impact force to move downward, mobile leg 422 is touched after moving a certain distance
Encounter the stopping of the second surge protection 52 to continue to move downward, reed will not be excessive because of displacement so that connection end internal stress is big
Permanent deformation occurs in material yield stress, the sensitivity and distortion for preventing energy converter are affected due to impacting, so as to rise
To the effect to energy converter surge protection.Further, first surge protection 51 and the second surge protection 52 are by non-
Permeability alloys is made.
Embodiment 4
Fig. 5 is another electroacoustic transducer for carrying surge protection, and the first surge protection 51 is arranged on 21 ' upside of magnet, the
Two surge protections 52 are arranged on 41 downside of coil body of mobile 422 upside of leg, and other structures are same as Example 1, similary energy
Enough play the role of protecting electroacoustic transducer.
Although embodiments of the present invention are illustrated in specification, these embodiments are intended only as prompting,
It should not limit protection scope of the present invention.It is equal that various omission, substitution, and alteration are carried out without departing from the spirit and scope of the present invention
It should include within the scope of the present invention.
Claims (6)
1. a kind of electroacoustic transducer with surge protection, which is characterized in that including：
Transducer housing defines volume and inner surface, and chamber is provided for electroacoustic transducer；
Magnet assembly, including a pair of of driving magnet and a pair of yoke for being distributed in its outside and being attached thereto；
Vibrating membrane, vibrating membrane outer perimeter section are fixed with inner walls；
Motor sub-assembly, including coil body, reed, connector, the reed is divided into fixed leg, mobile leg, connecting pin
Portion, the reed fixed leg are fixed on the outside of yoke, and mobile leg is connected by connector with vibrating membrane；
Surge protection component, including the first surge protection and the second surge protection, first surge protection and the second impact
Protect asymmetric setting；
First surge protection is arranged on the inner walls of vibrating membrane opposite.
2. the electroacoustic transducer according to claim 1 with surge protection, it is characterised in that：Second impact is protected
Shield is arranged on the inside of the coil body on the downside of mobile leg.
3. the electroacoustic transducer according to claim 1 or 2 with surge protection, it is characterised in that：First punching
Protection is hit to be made of non-magnetic alloy.
4. the electroacoustic transducer according to claim 3 with surge protection, it is characterised in that：Second impact is protected
Shield is formed by glue.
5. the electroacoustic transducer according to claim 1 with surge protection, it is characterised in that：Second impact is protected
Shield is arranged on the inside of the magnet on the downside of mobile leg.
6. the electroacoustic transducer according to claim 5 with surge protection, it is characterised in that：First impact is protected
Shield and the second surge protection are made of non-magnetic alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410523326.2A CN104301842B (en) | 2014-10-08 | 2014-10-08 | Electroacoustic transducer with surge protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410523326.2A CN104301842B (en) | 2014-10-08 | 2014-10-08 | Electroacoustic transducer with surge protection |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104301842A CN104301842A (en) | 2015-01-21 |
| CN104301842B true CN104301842B (en) | 2018-05-29 |
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ID=52321368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410523326.2A Active CN104301842B (en) | 2014-10-08 | 2014-10-08 | Electroacoustic transducer with surge protection |
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| Country | Link |
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| CN (1) | CN104301842B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108347681A (en) * | 2018-03-20 | 2018-07-31 | 深圳倍声声学技术有限公司 | A kind of armature structure and dynamic iron unit |
| CN110022518B (en) * | 2019-04-26 | 2024-04-12 | 苏州亿欧得电子有限公司 | Low-eddy-current magnetic-loss armature device for electroacoustic transducer |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1077586A2 (en) * | 1999-08-16 | 2001-02-21 | Microtronic Nederland B.V. | Shock improvement for an electroacoustic transducer |
| CN103079139A (en) * | 2013-01-31 | 2013-05-01 | 苏州恒听电子有限公司 | Anti-collision falling-resisting type telephone receiver |
| CN103731769A (en) * | 2013-12-27 | 2014-04-16 | 苏州恒听电子有限公司 | Telephone receiver with anti-collision and anti-throwing function |
| CN103747378A (en) * | 2013-12-27 | 2014-04-23 | 苏州恒听电子有限公司 | Magnetic driving mechanism and receiver |
| CN204119486U (en) * | 2014-10-08 | 2015-01-21 | 苏州亿欧得电子有限公司 | There is the electroacoustic transducer of surge protection |
-
2014
- 2014-10-08 CN CN201410523326.2A patent/CN104301842B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1077586A2 (en) * | 1999-08-16 | 2001-02-21 | Microtronic Nederland B.V. | Shock improvement for an electroacoustic transducer |
| CN103079139A (en) * | 2013-01-31 | 2013-05-01 | 苏州恒听电子有限公司 | Anti-collision falling-resisting type telephone receiver |
| CN103731769A (en) * | 2013-12-27 | 2014-04-16 | 苏州恒听电子有限公司 | Telephone receiver with anti-collision and anti-throwing function |
| CN103747378A (en) * | 2013-12-27 | 2014-04-23 | 苏州恒听电子有限公司 | Magnetic driving mechanism and receiver |
| CN204119486U (en) * | 2014-10-08 | 2015-01-21 | 苏州亿欧得电子有限公司 | There is the electroacoustic transducer of surge protection |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104301842A (en) | 2015-01-21 |
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