CN108566596B - Voice coil winding method, voice coil and acoustic generator with voice coil - Google Patents
Voice coil winding method, voice coil and acoustic generator with voice coil Download PDFInfo
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- CN108566596B CN108566596B CN201810348024.4A CN201810348024A CN108566596B CN 108566596 B CN108566596 B CN 108566596B CN 201810348024 A CN201810348024 A CN 201810348024A CN 108566596 B CN108566596 B CN 108566596B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/06—Loudspeakers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
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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
- H04R2400/00—Loudspeakers
- H04R2400/11—Aspects regarding the frame of loudspeaker transducers
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- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
The invention discloses a voice coil winding method, a voice coil and a sounder provided with the voice coil, and relates to an electroacoustic product, wherein the voice coil is formed by winding wires, the voice coil is provided with a plurality of wire layers in the radial direction, the voice coil comprises a top part, a middle part and a bottom part, the top side of the voice coil is connected with a vibrating diaphragm, and the method comprises the following steps: winding the inner layer of wire layer by using the wire; winding a secondary outer layer lead layer, wherein a lead of the secondary outer layer lead layer is wound at the bottom of the inner layer lead layer; and winding the outermost wire layer, wherein the outermost wire layer is wound at the bottom of the second outer wire layer. The voice coil is wound by the method, the bottom of the voice coil is a wire dense area, and when the voice coil is used for a sounder, the bottom of the voice coil is inserted into a magnetic gap, so that the voice coil is concentrated in the area with dense magnetic force. When the working voice coil of the sounder vibrates up and down, the situation of BL asymmetry is reduced, the distortion of the frequency band near FO is improved, the sensitivity of the monomer under large voltage is improved, and the performance of the sounder is improved.
Description
Technical Field
The invention relates to the technical field of electroacoustic products, in particular to a voice coil winding method, a voice coil and a sounder with the voice coil.
Background
With the generation and upgrading of electronic products, the single products gradually develop to be light, thin and small, and therefore, more and more single products are designed to be limited. For example, to satisfy performance at a large voltage, polarization of the product must be sufficiently suppressed. For the product of the suspended voice coil lead, the start line and the end line of the voice coil are designed to be on the same side as much as possible so as to reduce the unbalance caused by the pulling force of the lead to the minimum. In order to realize the design that the starting and ending lines of the voice coil are on the same side, an even number of layers are arranged on the voice coil in the radial direction, but some products are limited by performance parameter requirements, as shown in fig. 1, the outermost two layers cannot be fully wound, and usually an area which is not fully wound is positioned at one end of the voice coil and is not outgoing, so that the voice coil cannot be enriched in the area with the most intensive magnetic lines, and the BL value (magnetic field intensity of a magnetic gap of the voice coil) is reduced; and when the voice coil vibrates up and down, the BL trend difference is caused, and the distortion is increased.
Disclosure of Invention
In view of the above-mentioned shortcomings, the present invention provides a voice coil winding method, a voice coil and a sound generator having the voice coil, wherein the voice coil has a wire-dense region, and a corresponding magnetic line-dense region can be formed when the voice coil is used, so that the sensitivity of a single body is improved, the distortion under a large voltage is improved, and the performance of the sound generator is improved.
In order to achieve the purpose, the technical scheme of the invention is as follows:
the utility model provides a winding method of voice coil loudspeaker voice coil, the voice coil loudspeaker voice coil is formed by the wire coiling, the voice coil loudspeaker voice coil has a plurality of wire layers in the footpath, the voice coil loudspeaker voice coil includes the top that is used for being connected with the vibrating diaphragm, keeps away from the bottom of top and lies in the middle part between top and the bottom, and the method includes: winding an inner layer of wire layer by using the wire; winding a secondary outer layer lead layer, wherein the lead of the secondary outer layer lead layer is wound at the bottom of the inner layer lead layer; and winding the outermost layer of wire layer, wherein the outermost layer of wire layer is wound at the bottom of the secondary outer layer of wire layer.
Preferably, the winding of the secondary outer layer conductor around the bottom of the inner layer conductor layer comprises: the conducting wire of the secondary outer layer conducting wire layer is wound around the top of the conducting wire winding inner layer conducting wire layer to form a first part; after the first preset number of turns of winding, the wire is obliquely pulled to the bottom of the inner layer wire layer and is wound around the bottom of the inner layer wire layer of the wire winding to form a second part.
Preferably, the outermost layer of wire layer wound around the bottom of the second outermost layer of wire layer includes: the wire of the outermost wire layer is wound around the second part of the secondary outer wire layer; and after winding a second preset number of turns, leading out the lead to form a voice coil lead.
The preferred mode does, after the second preset number of turns of coiling, will the wire is drawn forth, and it includes to form the voice coil loudspeaker voice coil lead: after the number of turns is preset at the coiling second, will the wire draws to one side to the first part on inferior outer wire layer, and centers on the first part coiling, after the number of turns is preset at the coiling third, will the wire is followed the top on outmost wire layer is drawn forth.
Preferably, the number of turns of the first part is not greater than the number of turns of the second part.
Preferably, the second preset number of turns is not less than the third preset number of turns.
Preferably, the winding of the inner layer conductor layer by using the conductor comprises: the conducting wire is connected and wound from the top of the voice coil to the bottom or connected and wound from the bottom of the voice coil to the top to form an inner-layer conducting wire layer.
Preferably, the voice coil includes an even number of conductor layers.
And the voice coil is formed by winding the voice coil winding method.
A sounder comprises a vibration system and a magnetic circuit system, wherein the vibration system comprises a voice coil, the magnetic circuit system comprises a magnet, the voice coil is the voice coil, and the bottom of the voice coil is inserted into a magnetic gap formed by the magnet.
After the technical scheme is adopted, the invention has the beneficial effects that:
because the voice coil winding method and the voice coil provided with the voice coil are disclosed by the invention, wherein the voice coil is formed by winding the conducting wires, the voice coil is provided with a plurality of conducting wire layers in the radial direction, the voice coil comprises a top part used for being connected with the vibrating diaphragm, a bottom part far away from the top part and a middle part positioned between the top part and the bottom part, and the method comprises the following steps: winding the inner layer of wire layer by using the wire; winding a secondary outer layer lead layer, wherein the lead of the secondary outer layer lead layer is wound at the bottom of the inner layer lead layer; and winding the outermost wire layer, wherein the outermost wire layer is wound at the bottom of the second outer wire layer. The voice coil wound by the method of the invention has the bottom part which is a wire dense area, thus when the voice coil is used for a sounder, the bottom part of the voice coil is inserted into a magnetic gap, and then the voice coil is concentrated in an area with dense magnetic force, when the sounder works and the voice coil vibrates up and down, the situation that BL is asymmetric caused by different BL attenuation is reduced, the distortion of frequency bands near FO is improved, the sensitivity of a monomer under high voltage is improved, and the performance of the sounder is improved.
Because the winding of inferior outer layer wire includes in the bottom on inlayer wire layer: the wire of the secondary outer layer wire layer is wound around the top of the wire winding inner layer wire layer to form a first part; after winding for a first preset number of turns, obliquely pulling the wire to the bottom of the inner layer wire layer, and winding the wire around the bottom of the inner layer wire layer to form a second part; and the winding of the secondary outer layer wire layer is conveniently finished by adopting a diagonal pulling mode.
Because the coiling second is predetermine the number of turns after, draws the wire, forms the voice coil loudspeaker voice coil lead wire and includes: after the second preset number of turns of winding, the wire is obliquely pulled to the first part of the secondary outer layer wire layer and is wound around the first part, and after the third preset number of turns of winding, the wire is led out from the top of the outermost layer wire layer; this structure minimizes imbalance of the voice coil leads due to tension experienced by vibration.
Because the number of winding turns of the first part is not larger than that of the second part, a lead sparse area is formed in the middle of the voice coil, and distortion of a frequency band close to FO under large voltage is reduced.
Drawings
FIG. 1 is a schematic cross-sectional view of a voice coil of the prior art;
FIG. 2 is a schematic cross-sectional view of a voice coil of the present invention;
FIG. 3 is a schematic view of the direction of winding of a voice coil according to the present invention;
FIG. 4 is a schematic cross-sectional view of a voice coil in the acoustic generator of the present invention;
in the figure: 1-voice coil, 10-top of voice coil, 11-middle of voice coil, 12-bottom of voice coil, 2-innermost lead layer, 3-second inner lead layer, 4-second outer lead layer, 5-outermost lead layer, 6-magnetic gap, 7-magnet.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The first embodiment is as follows:
as shown in fig. 2, fig. 3 and fig. 4, a method for winding a voice coil, where the voice coil 1 is formed by winding wires, the voice coil 1 has a plurality of wire layers in a radial direction, the voice coil 1 includes a top portion 10 for connecting with a diaphragm, a bottom portion 12 far away from the top portion, and a middle portion 11 located between the top portion and the bottom portion, the method includes: winding the inner layer of wire layer by using the wire; winding a secondary outer layer lead layer 4, wherein the lead of the secondary outer layer lead layer 4 is wound at the bottom of the inner layer lead layer; and winding the outermost wire layer 5, wherein the outermost wire layer 5 is wound at the bottom of the second outer wire layer 4.
In this embodiment, the voice coil 1 includes an even number of conductor layers, preferably four layers, although the number is not limited to the above. For convenience of description, the following conductive layers are defined as follows in order from inside to outside: an innermost lead layer 2, a sub-inner lead layer 3, a sub-outer lead layer 4 and an outermost lead layer 5.
It should be noted that each layer of the wire layer may have a plurality of wire loops, that is, each layer of the wire layer is formed by winding a plurality of wire loops around a wire. The conductor layers inside the sub-outer layer are collectively referred to as inner conductor layers. That is, the innermost wiring layer 2 and the sub-inner wiring layer 3 are collectively referred to as an inner wiring layer.
As shown in fig. 2, 3 and 4, the winding of the wire of the second outer wire layer 4 around the bottom of the inner wire layer includes: the wires of the secondary outer wire layer 4 are wound around the top of the inner wire layer to form a first part; after the first preset number of turns of winding, the wire is obliquely pulled to the bottom of the inner layer wire layer and is wound around the bottom of the inner layer wire layer to form a second part. Further, in this embodiment, the number of winding turns of the first portion is not greater than the number of winding turns of the second portion, so that the lead is concentrated on the bottom 12 of the voice coil as much as possible.
As shown in fig. 2, 3 and 4, the outermost wire layer 5 wound around the bottom of the second outermost wire layer 4 includes: the wires of the outermost wire layer 5 are wound around the second part of the second outer wire layer 4; and after winding a second preset number of turns, leading out the lead to form a voice coil lead.
Further, after the winding second preset number of turns, draw the wire out, form the voice coil loudspeaker voice coil lead wire and include: and after the second preset number of turns of winding, the wire is obliquely pulled to the first part of the secondary outer layer wire layer and is wound around the first part, and after the third preset number of turns of winding, the wire is led out from the top of the outermost layer wire layer 5.
Further, the second predetermined number of turns is not less than the third predetermined number of turns, and the lead is also concentrated on the bottom 12 of the voice coil as much as possible.
It should be noted that the first preset number of turns, the second preset number of turns, and the third preset number of turns are preset according to actual requirements, and may be 2 turns, 4 turns, and the like, which is not limited in the present invention.
As shown in fig. 1, 2, 3 and 4, in the present embodiment, winding the inner layer of the conductive wire with the conductive wire includes: the wire is connected and wound from the top 10 of the voice coil to the bottom 12 of the voice coil or from the bottom 12 of the voice coil to the top 10 of the voice coil to form an inner layer of wire.
In this example, the inner layer conductor layer includes an innermost conductor layer 2 and a secondary inner conductor layer 3, and during the specific winding: when the innermost layer of the lead wire layer 2 is wound, the lead wire is reserved at the top 10 of the voice coil, and then the lead wire is continuously wound from the top 10 of the voice coil to the bottom 12 of the voice coil. And after the innermost layer of the lead layer 2 is wound, continuously winding the lead, and continuously winding the lead from the bottom of the innermost layer to the top 10 of the voice coil to form a secondary inner layer of the lead layer 3, so that the inner layer of the lead is wound. When carrying out the coiling on inferior outer wire layer 4, the wire is after the first predetermined number of turns of top winding of inferior inlayer wire, for example twine 2 circles, forms the top wire layer on inferior outer wire layer 4, be first portion promptly, draws the wire to the bottom on inferior inlayer wire layer 3 to wind around the bottom on inferior inlayer wire layer 3, form the bottom wire layer on inferior outer wire layer 4, be the second portion promptly. This results in the next outer conductor layer 4 having conductor layers only on the top and bottom. After the secondary outer layer wire layer is wound, a wire can be wound at the bottom of the secondary outer layer wire layer, namely, the wire is wound at the second part of the secondary outer layer wire layer to form an outermost layer wire layer. When the voice coil lead is led out at the bottom of the voice coil, the lead can be led out after a second preset number of turns are wound around the second part of the secondary outer layer lead layer to form a lead.
Or, the lead of the voice coil is led out from the top of the voice coil, and the lead can be pulled upwards to the first part of the secondary outer layer lead layer after being wound around the second part of the secondary outer layer lead layer for a second preset number of turns, and is wound around the first part to form the top of the outermost layer lead layer. After the third preset number of turns of winding, the lead can be led out from the top of the outermost layer of the lead layer to form a lead. After the coiling like this, 1 vibration unbalance problem of voice coil loudspeaker voice coil that leads to with 2 lead wires of unsettled voice coil loudspeaker voice coil is reduced to minimumly, has also promoted the performance of monomer, especially the monomer that uses at the big voltage.
As shown in fig. 3, in this embodiment, when winding the voice coil 1, the secondary outer conductor layer 4 is once obliquely pulled from the top 10 of the voice coil to the bottom 12 of the voice coil, and when winding the outermost outer conductor layer 5, the conductor is secondarily obliquely pulled in a direction from the bottom 12 of the voice coil to the top 10 of the voice coil, and both obliquely pulled twice across the middle 11 of the voice coil, so that the voice coil 1 is kept balanced during vibration, and the performance of an electroacoustic product is ensured.
The voice coil 1 is wound by the method, the bottom 12 of the voice coil is a wire dense area, therefore, when the voice coil 1 is used for a sounder, the bottom 12 of the voice coil is inserted into the magnetic gap 6, the voice coil 1 is concentrated in a magnetic force dense area, when the sounder works and the voice coil 1 vibrates up and down, the situation that BL is asymmetric caused by different attenuation of BL is reduced, the distortion of frequency bands near FO is improved, the sensitivity of a monomer under high voltage is improved, and the performance of the sounder is improved. The method of the invention has low cost, convenience and simplicity.
The FO is a natural resonant frequency FO of the loudspeaker in a low frequency band, and the distortion of a frequency band near the FO point is the largest in an effective audio frequency range of a normal loudspeaker.
The lead wire used in the invention can be an enameled wire, and can also be other lead wires.
Example two:
as shown in fig. 2 and 3, the voice coil 1 and the voice coil 1 are formed by winding the voice coil winding method.
Example three:
as shown in fig. 2, fig. 3 and fig. 4, a sound generator includes a vibration system and a magnetic circuit system, the vibration system includes a voice coil 1, the magnetic circuit system includes a magnet 7, the voice coil 1 is formed by the winding method described in the above embodiment, and a bottom 12 of the voice coil is inserted into a magnetic gap 6 formed by the magnet 7.
According to the sounder, the voice coil 1 with the wire dense area is adopted, after the bottom end 12 of the voice coil is inserted into the magnetic gap 6, when the voice coil 1 vibrates up and down, BL value attenuation is the same, BL is symmetrical, distortion is improved, and performance of the sounder is improved.
The above-described preferred embodiments of the present invention are not intended to limit the present invention, and any modifications, equivalent to a voice coil, and modifications of a sound generator structure provided with the voice coil, which are made within the spirit and principle of the present invention, are included in the scope of the present invention.
Claims (5)
1. The winding method of the voice coil is characterized in that the voice coil is formed by winding wires, the voice coil is provided with a plurality of wire layers in the radial direction, the number of the wire layers is even, the voice coil comprises a top part used for being connected with a vibrating diaphragm, a bottom part far away from the top part and a middle part positioned between the top part and the bottom part, and the method comprises the following steps:
winding an inner layer of wire layer by using the wire;
winding a secondary outer layer lead layer, wherein a lead of the secondary outer layer lead layer is wound around the top of the inner layer lead layer to form a first part; after winding for a first preset number of turns, the lead is obliquely pulled to the bottom of the inner lead layer and is wound around the bottom of the inner lead layer to form a second part, the number of turns of the first part is not more than that of the second part, and the lead obliquely-pulled area spans the middle part of the voice coil;
the outermost wire layer of coiling, wherein, the winding of outermost wire layer is in the bottom on inferior outer wire layer includes: the wire of the outermost wire layer is wound around the second part of the secondary outer wire layer; after winding for a second preset number of turns, leading out the lead to form a voice coil lead;
after the predetermined number of turns of coiling second, will the wire is drawn forth, forms the voice coil loudspeaker voice coil lead wire and includes:
after winding for a second preset number of turns, the lead is obliquely pulled to the first part of the secondary outer layer lead layer and is wound around the first part;
and after winding for a third preset number of turns, leading out the lead from the top of the outermost layer of the lead layer to form a voice coil lead.
2. The winding method of a voice coil according to claim 1, wherein the second preset number of turns is not less than the third preset number of turns.
3. The method of claim 1, wherein the step of winding the inner layer of wires with the wires comprises:
the conducting wire is connected and wound from the top of the voice coil to the bottom or connected and wound from the bottom of the voice coil to the top to form an inner-layer conducting wire layer.
4. The voice coil is characterized in that the voice coil is formed by winding the voice coil winding method of any one of claims 1 to 3.
5. A sound generator comprising a vibration system and a magnetic circuit system, wherein the vibration system comprises a voice coil, and the magnetic circuit system comprises a magnet, wherein the voice coil is the voice coil of claim 4, and the bottom of the voice coil is inserted into a magnetic gap formed by the magnet.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810348024.4A CN108566596B (en) | 2018-04-18 | 2018-04-18 | Voice coil winding method, voice coil and acoustic generator with voice coil |
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| CN201810348024.4A CN108566596B (en) | 2018-04-18 | 2018-04-18 | Voice coil winding method, voice coil and acoustic generator with voice coil |
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| CN108566596B true CN108566596B (en) | 2020-09-01 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10631096B1 (en) * | 2019-03-07 | 2020-04-21 | Apple Inc. | Force cancelling transducer |
| CN111065030B (en) * | 2019-12-20 | 2021-06-15 | 瑞声科技(新加坡)有限公司 | Voice coil, winding method thereof and loudspeaker with voice coil |
| CN111654793A (en) * | 2020-06-29 | 2020-09-11 | 歌尔股份有限公司 | Voice coil and sound generating device |
| US11570547B2 (en) | 2021-06-09 | 2023-01-31 | Apple Inc. | Vibration and force cancelling transducer assembly |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102281485A (en) * | 2010-06-11 | 2011-12-14 | 瑞声声学科技(深圳)有限公司 | Miniature acoustic generator |
| CN105872914A (en) * | 2016-03-31 | 2016-08-17 | 歌尔声学股份有限公司 | Voice coil and micro-loudspeaker with voice coil |
| CN107770688A (en) * | 2017-11-20 | 2018-03-06 | 马斯利自动化技术（苏州）有限公司 | The coiling device and method of a kind of special-shaped voice coil loudspeaker voice coil, special-shaped voice coil loudspeaker voice coil |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20060014662A (en) * | 2004-08-11 | 2006-02-16 | 삼성전자주식회사 | Structure of voice coil in speaker |
| CN102523545A (en) * | 2011-12-27 | 2012-06-27 | 楼氏电子（北京）有限公司 | Voice coil and formation method and application thereof |
| CN202679607U (en) * | 2012-06-06 | 2013-01-16 | 歌尔声学股份有限公司 | Electroacoustic transducer |
| CN202799122U (en) * | 2012-08-22 | 2013-03-13 | 歌尔声学股份有限公司 | Loudspeaker device |
| CN203504745U (en) * | 2013-09-12 | 2014-03-26 | 江西联创宏声电子有限公司 | Step-type voice coil and sounder employing voice coil |
| CN105933833A (en) * | 2016-05-25 | 2016-09-07 | 深圳精拓创新科技有限公司 | Voice coil, manufacturing method thereof and loudspeaker |
| CN205830008U (en) * | 2016-05-25 | 2016-12-21 | 深圳精拓创新科技有限公司 | A kind of voice coil loudspeaker voice coil and speaker |
-
2018
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102281485A (en) * | 2010-06-11 | 2011-12-14 | 瑞声声学科技(深圳)有限公司 | Miniature acoustic generator |
| CN105872914A (en) * | 2016-03-31 | 2016-08-17 | 歌尔声学股份有限公司 | Voice coil and micro-loudspeaker with voice coil |
| CN107770688A (en) * | 2017-11-20 | 2018-03-06 | 马斯利自动化技术（苏州）有限公司 | The coiling device and method of a kind of special-shaped voice coil loudspeaker voice coil, special-shaped voice coil loudspeaker voice coil |
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