CN209250879U - The compound electroacoustic transducer of moving-coil electrostatic - Google Patents
The compound electroacoustic transducer of moving-coil electrostatic Download PDFInfo
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- CN209250879U CN209250879U CN201822115678.0U CN201822115678U CN209250879U CN 209250879 U CN209250879 U CN 209250879U CN 201822115678 U CN201822115678 U CN 201822115678U CN 209250879 U CN209250879 U CN 209250879U
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- mould group
- electrostatic
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- transducing mould
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- 150000001875 compounds Chemical class 0.000 title claims abstract description 12
- 230000002463 transducing effect Effects 0.000 claims abstract description 46
- 230000005236 sound signal Effects 0.000 claims abstract description 18
- 239000012528 membrane Substances 0.000 claims abstract description 12
- 230000000694 effects Effects 0.000 abstract description 6
- 230000004044 response Effects 0.000 abstract description 6
- 230000005389 magnetism Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 239000003990 capacitor Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- CNQCVBJFEGMYDW-UHFFFAOYSA-N lawrencium atom Chemical compound [Lr] CNQCVBJFEGMYDW-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000010287 polarization Effects 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
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- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
The utility model relates to a kind of compound electroacoustic transducers of moving-coil electrostatic, including moving-coil type transducing mould group and electrostatic transducing mould group；Moving-coil type transducing mould group includes magnet, voice coil and vibrating elements, and voice coil is placed between the magnetic pole of magnet and connect with vibrating elements, and magnet is ndfeb magnet；And electrostatic transducing mould group includes audio signal electrode plate, booster and vibrating membrane, vibrating membrane corresponds to the setting of audio signal electrode plate, and audio signal electrode plate is connect with booster.The utility model can be improved the low frequency response effect of electrostatic loudspeaker, increase the depth distance of sound field of loudspeaker, to be effectively improved the sound field of loudspeaker, improve space hierarchy.
Description
Technical field
The utility model relates to loudspeaker techniques to be used for field more particularly to a kind of compound electroacoustic transducer of moving-coil electrostatic.
Background technique
At present HiFi electroacoustic loud speaker classify in a driving manner can be roughly divided into flat panel speaker, coil-moving speaker and
Electrostatic loudspeaker.
The most common loudspeaker is coil-moving speaker, including by voice coil and the vibrational system that forms, by permanent magnet, iron core
The magnetic loop system and auxiliary shoring system of column and magnetic conductive splint composition.When the tone currents to voice coil input alternation, forever
Under the Constant charge soil effect of magnet, according to Faraday's law and left hand rule, voice coil will receive alternation driving force effect, and then drive
It moves back and forth.Vibration drive surrounding sound because propagation medium vibrates (usually air), to complete voiceband telecommunication
Conversion number with acoustical signal.Voice coil and the auxiliary support structure of surrounding guarantee the coaxial axial vibration of the two.Coil-moving speaker
Efficiency is relatively high, reliability and durability, is used as sound equipment output driving mostly.The characteristic voice of moving-coil unit is exactly low frequency, intermediate frequency and height
Frequency three is connected smooth, and sound field is naturally loose, and sense of hearing is comfortable, and especially low frequency response effect is prominent.
The phonation unit of electrostatic loudspeaker with flat capacitor device, booster with fixed electrode mainly by forming.
Wherein, it is suspended in flat capacitor device as acoustic radiating unit, surface is vapor-deposited with thin metal layer.It is boosted device when in use
Very high voltage (up to 580V) polarization of offer, the vibration sounding under the polarization of flat capacitor device.Especially by amplification
On the fixed polar plate of audio signal input plate condenser afterwards, the audio signal (high pressure audio signal) of variation can be in two-plate
Between generate the electric field of variation, to make to be in polarized metal forced vibration sounding between two-plate.Due to without as moving-coil
Voice coil is loaded as formula loudspeaker and receives the oscillating load directly from voice coil, and Structural strength calls are not high, and quality can be with
Accomplish very light.It is not in contact with other structures part in vibration processes, distortion is minimum, and parsing power is splendid.Coil-moving speaker loses
True typically up to 3%, the theoretical distortion of electrostatic loudspeaker is only 0.02%, and actual product is distorted below 0.5%.But electrostatic
The low frequency response of formula loudspeaker is very poor, and the service life is short and power consumption is big.
Earphone is acoustical phase reduction to be completed by curve tuning, thus earphone sound field is a virtual field, leads to institute
There is the knot of earphone system all to there is more or less distortion as sense, distortion shows sound field size, shape；Tie image planes size, shape
Shape, positioning, depth are apart from upper.Wherein mainly by the influential effect of low frequency response, existing electrostatic loudspeaker exists depth distance
In HiFi system in application, inevitably because low frequency response difference due to existing for systematicness be distorted.
Utility model content
The purpose of this utility model is to propose that a kind of compound electroacoustic of moving-coil electrostatic changes for the disadvantage on prior art construction
Energy device, solves systematicness problem of dtmf distortion DTMF existing for existing electrostatic loudspeaker.
The utility model embodiment provides a kind of compound electroacoustic transducer of moving-coil electrostatic, including moving-coil type transducing mould group and quiet
Electric-type transducing mould group；Moving-coil type transducing mould group includes magnet, voice coil and vibrating elements, and voice coil is placed between the magnetic pole of magnet simultaneously
It is connect with vibrating elements, magnet is ndfeb magnet；And electrostatic transducing mould group include audio signal electrode plate, booster and
Vibrating membrane, vibrating membrane correspond to the setting of audio signal electrode plate, and audio signal electrode plate is connect with booster.
In a preferred embodiment, the angle between moving-coil type transducing mould group and the sound output face of electrostatic transducing mould group
Less than 180 °.
In a preferred embodiment, angle between moving-coil type transducing mould group and the sound output face of electrostatic transducing mould group
Angular range is 100 ° -150 °.
In a preferred embodiment, angle between moving-coil type transducing mould group and the sound output face of electrostatic transducing mould group
Angular range is 105 ° -120 °.
In a preferred embodiment, the thickness of vibrating membrane is less than 2 microns.
Compared with prior art, the beneficial effect of the utility model embodiment is: by by moving-coil type transducing mould group and quiet
The moving-coil electrostatic compound loudspeaker of electric-type transducing mould group composition, improves the low frequency response effect of electrostatic loudspeaker, increases loudspeaking
The depth distance of device sound field improves space hierarchy to be effectively improved the sound field of loudspeaker.
Detailed description of the invention
By the description carried out with reference to the accompanying drawing to its exemplary embodiment, the utility model features described above and advantage will
It can become more fully apparent and be readily appreciated that.
Fig. 1 is the structural schematic diagram of the electroacoustic transducer of the utility model embodiment 1.
Fig. 2 is the structural schematic diagram of moving-coil type transducing mould group in the electroacoustic transducer of the utility model embodiment 1.
Fig. 3 is the internal magnetic type magnetic circuit structural schematic diagram of the moving-coil type transducing mould group of the utility model embodiment 1.
Fig. 4 is the external magnetic circuit structural schematic diagram of the moving-coil type transducing mould group of the utility model embodiment 1.
Fig. 5 is the structural schematic diagram of the electrostatic transducing mould group of the electroacoustic transducer of the utility model embodiment 1.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing, in order to the understanding of technical staff of the same trade:
Embodiment 1:
A kind of electroacoustic transducer is shown referring to Fig. 1, Fig. 1.The electroacoustic transducer includes moving-coil type transducing mould group 100 and quiet
Electric-type transducing mould group 200.Referring to fig. 2, Fig. 2 show the moving-coil type transducing mould group of the electroacoustic transducer of embodiment 1.The moving-coil type
Energy converter 100 includes magnet 101, voice coil 102 and vibrating elements 103.Voice coil 102 is placed between the magnetic pole of magnet 101 and shakes
Dynamic element 103 connects.Voice coil 102 is by the magnetic field center determined core branch piece and be maintained at magnetic circuit air gap with pleat line, and input has
Tone currents.The magnet of moving-coil type transducing mould group is shown using internal magnetic type magnetic line structure referring to Fig. 3, Fig. 3.Internal magnetic type magnetic circuit knot
Structure includes bowl-shape soft magnetism structure, and cylinder-shaped magnet is arranged in center, and magnetic core is arranged on magnet, and annular soft magnetism material branch is arranged in edge
The magnetic pole of support forms magnetic field gap between magnetic core and magnetic pole.Due to being located at the center of bowl-shape soft magnetism structure, soft magnetism using magnetic core
Structure is used as magnetic cup to hinder simultaneously, so that internal magnetic type magnetic circuit, which does not generate stray magnetic field to the external world, to be influenced.Referring to fig. 4, Fig. 4 show dynamic
The magnet of ring type transducing mould group uses external magnetic circuit structure.External magnetic circuit structure includes disc soft magnetism mechanism, central column
One end of magnet is located at its periphery, and the magnetic core of soft magnetism material is at its center.Soft magnetism ring plate as magnetic pole is located at the another of magnet
One end.Magnetic field gap is formed between magnetic core and magnetic pole.Magnet uses ndfeb magnet.The vibration of moving-coil type transducing mould group 100
Element 103 uses linear type centrum shape or shaped form centrum shape.
The structure of electrostatic transducing mould group 200 is shown referring to Fig. 5, Fig. 5.Electrostatic transducing mould group 200 is believed including audio
Number electrode plate 201, booster 202 and vibrating membrane 203, the corresponding audio signal electrode plate 201 of vibrating membrane 203 are arranged, audio signal
Electrode, 201 connect with booster 202.Audio signal electrode plate 201 can be one, vibrating membrane 203 and the audio signal battery plate
201 are oppositely arranged (monofocal).Audio signal electrode plate 201 may be two, and vibrating membrane 203 is interposed in two audio signals
Between electrode plate 201 (push-pull type).Audio signal electrode plate 201 is using the pcb board or sheet metal for having conductive coating.Vibration
The thickness of film 203 is less than 2 microns.
In the case where front end system keeps suitable thrust not lose information, rear end earphone directly closes three frequency Energy distributions
It is the knot to system as ability.Angle between moving-coil type transducing mould group 100 and the sound output face of electrostatic transducing mould group 200
Less than 180 °, while human ear susceptibility highest mid-high voice frequency loudness can be increased, reduce two frequencies of extremely high frequency and very low frequencies
The delay sense of section, so that the Distance Judgment accuracy of human ear is improved, to increase depth while increasing sound field knot image planes product
Distance.Preferably, between moving-coil type transducing mould group 100 and the sound output face of electrostatic transducing mould group 200 angle angle model
Enclose is 100 ° -150 °.It is further preferred that the sound output face of moving-coil type transducing mould group 100 and electrostatic transducing mould group 200 it
Between angle angular range be 105 ° -120 °.Most preferably, the sound of moving-coil type transducing mould group 100 and electrostatic transducing mould group 200
The angular range of angle is 110 ° -115 ° between sound output face.
It is intended to above by utility model of the embodiment for the utility model and embodiment is described in detail, still
The utility model one of ordinary skill in the art are appreciated that the utility model above embodiments are only the utility model
One of preferred embodiment limits for length, cannot enumerate all embodiments one by one here, any to embody the utility model
The implementation of claim technical solution, it is all within the protection scope of the present utility model.
It should be noted that the above content is combination specific embodiments to further detailed made by the utility model
Illustrate, and it cannot be said that specific embodiment of the present utility model is only limitted to this, under the guidance of above-described embodiment, art technology
Personnel can carry out various improvement and deformations on the basis of the above embodiments, and these are improved or deformation to fall in this practical new
In the protection scope of type.
Claims (5)
1. a kind of compound electroacoustic transducer of moving-coil electrostatic, it is characterised in that: including moving-coil type transducing mould group and electrostatic transducing mould
Group；
The moving-coil type transducing mould group includes magnet, voice coil and vibrating elements, the voice coil be placed in the magnet magnetic pole it
Between and connect with the vibrating elements, the magnet is ndfeb magnet；And
The electrostatic transducing mould group includes audio signal electrode plate, booster and vibrating membrane, and the vibrating membrane corresponds to the sound
The setting of frequency signal electrode plate, the audio signal electrode plate are connect with the booster.
2. the compound electroacoustic transducer of moving-coil electrostatic according to claim 1, it is characterised in that: the moving-coil type transducing mould group
Angle between the sound output face of electrostatic transducing mould group is less than 180 °.
3. the compound electroacoustic transducer of moving-coil electrostatic according to claim 2, it is characterised in that: the moving-coil type transducing mould group
The angular range of angle is 100 ° -150 ° between the sound output face of electrostatic transducing mould group.
4. the compound electroacoustic transducer of moving-coil electrostatic according to claim 3, it is characterised in that: the moving-coil type transducing mould group
The angular range of angle is 105 ° -120 ° between the sound output face of electrostatic transducing mould group.
5. the compound electroacoustic transducer of moving-coil electrostatic according to claim 1, it is characterised in that: the thickness of the vibrating membrane is small
In 2 microns.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822115678.0U CN209250879U (en) | 2018-12-17 | 2018-12-17 | The compound electroacoustic transducer of moving-coil electrostatic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822115678.0U CN209250879U (en) | 2018-12-17 | 2018-12-17 | The compound electroacoustic transducer of moving-coil electrostatic |
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| Publication Number | Publication Date |
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| CN209250879U true CN209250879U (en) | 2019-08-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201822115678.0U Active CN209250879U (en) | 2018-12-17 | 2018-12-17 | The compound electroacoustic transducer of moving-coil electrostatic |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111757207A (en) * | 2020-07-10 | 2020-10-09 | 菏泽韩升元电子股份有限公司 | Headphone vibration assembly and vibrating headphone with the same |
-
2018
- 2018-12-17 CN CN201822115678.0U patent/CN209250879U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111757207A (en) * | 2020-07-10 | 2020-10-09 | 菏泽韩升元电子股份有限公司 | Headphone vibration assembly and vibrating headphone with the same |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: No. 2001, Yingbin West Road, Bacheng Town, Kunshan City, Suzhou City, Jiangsu Province, 215311 Patentee after: Kunshan Haifeiman Technology Group Co.,Ltd. Address before: 2 / F, North building, 1339 Shuixiu Road, Yushan Town, Kunshan City, Suzhou City, Jiangsu Province Patentee before: HEAD-DIRECT (KUNSHAN) Co.,Ltd. |
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| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 215300 No. 2001 Yingbin West Road, Bacheng Town, Kunshan City, Suzhou City, Jiangsu Province Patentee after: Kunshan Haifeiman Technology Group Co.,Ltd. Address before: No. 2001, Yingbin West Road, Bacheng Town, Kunshan City, Suzhou City, Jiangsu Province, 215311 Patentee before: Kunshan Haifeiman Technology Group Co.,Ltd. |
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| CP03 | Change of name, title or address |