CN101527876A - Low-distortion high-power receiver for digital communication - Google Patents
Low-distortion high-power receiver for digital communication Download PDFInfo
- Publication number
- CN101527876A CN101527876A CN200910030332A CN200910030332A CN101527876A CN 101527876 A CN101527876 A CN 101527876A CN 200910030332 A CN200910030332 A CN 200910030332A CN 200910030332 A CN200910030332 A CN 200910030332A CN 101527876 A CN101527876 A CN 101527876A
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- magnet
- voice coil
- receiver
- digital communication
- magnetic fluid
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- 238000004891 communication Methods 0.000 title claims abstract description 15
- 239000011553 magnetic fluid Substances 0.000 claims description 28
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000013016 damping Methods 0.000 abstract description 6
- 239000012530 fluid Substances 0.000 abstract 3
- 239000007788 liquid Substances 0.000 description 10
- 230000000694 effects Effects 0.000 description 4
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 238000005755 formation reaction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 210000000883 ear external Anatomy 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 239000006249 magnetic particle Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
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- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
The invention discloses a low-distortion high-power receiver for digital communication, comprising a magnet frame, a magnet, a voice loop, a vibrating diaphragm and a front cover plate. The magnet is arranged in the magnet frame; the voice loop is arranged on the periphery of the magnet; the front cover plate is arranged on the front end of the magnet frame; the vibrating diaphragm is arranged in a hollow cavity formed by the magnet and the front cover plate; the vibrating diaphragm is connected with the voice loop; and magnet fluid is filled in magnet gaps formed by the magnet and the magnet frame of the periphery of the voice loop. The invention fills the magnet fluid in the magnet gaps in which the voice loop of the receiver is positioned, utilizes the magnet fluid to increase system damping and radiating, reduces transverse vibration of the voice loop, and can increase the power, improve the frequency response and reduce the distortion of the receiver.
Description
Technical field
The present invention relates to a kind of receiver, specifically a kind of low-distortion high-power receiver for digital communication.
Background technology
Because the needs that digital communication equipment (as mobile phone) is microminiaturized need further reduce the size of existing digital communication with receiver under the prerequisite that keeps existing acoustical power.As having 5L * 10W * 2.5H mm now
3Size further reduce to 5L * 5W * 2.5H mm
3Or it is littler and keep existing acoustical power.This manufacturing process and design to receiver has all proposed new challenge, and how does one of them key issue accomplish low distortion and high-power?
Magnetic fluid is a kind of magnetic material of liquid state, and the magnetic of existing solid has the flowability of liquid again.It is to be the magnetic particle of nano-scale by particle diameter, rely on surfactant, evenly distribute, constitute a kind of colloid admixture of solid-liquid two-phase, even under gravity, centrifugal force, electromagnetic force effect, also Separation of Solid and Liquid can not take place, be a kind of typical composite function nano material.Magnetic fluid has been used for loud speaker, improves the frequency characteristic of loud speaker, reduces the distortion of high harmonic, the power of raising loud speaker.
The method of loudspeaker applications magnetic fluid be by the injection magnetic fluid to loudspeaker voice coil, magnetic fluid can be located under the effect in magnetic field automatically, and can not flow everywhere.And the thermal conductivity of magnetic fluid is bigger, and its viscosity can increase with the increase of magnetic field intensity, thereby strengthens damping.Because during voice coil loudspeaker voice coil work is all the time in liquid, so the heat that voice coil loudspeaker voice coil produces is directly passed to magnetic fluid, passes to magnetic circuit system again by liquid and distributes.So the heat dissipating state of magnetic fluid loud speaker be improved significantly, its rated power has also just had and has increased substantially, the existence of magnetic liquid has also strengthened the damping capacity of loud speaker, thereby reduces the resonance peak height on the frequency characteristics effectively, makes its characteristic curve more level and smooth.Loud speaker filling magnetic fluid effect mainly contains increase power, improves frequency response and reduce distortion.
Magnetic fluid material has also been used the receiver of hearing aids special use.As a kind of receiver that has the magnetic fluid damping of Lou Shi company exploitation, improve performance by the magnetic fluid that injects trace to receiver.But the receiver that the receiver of hearing aids special use and digital communication are used has a great difference, and the former is used in the duct, and the latter is used in communication apparatus such as similar mobile phone, sound wave by external ear be coupled into pleasant in.Up to the present, magnetic fluid technique also is not applied in the receiver that digital communication uses.
Summary of the invention
The purpose of this invention is to provide a kind of low-distortion high-power receiver for digital communication.This receiver can reduce the vibration of walking crosswise of voice coil loudspeaker voice coil by injecting the magnetic gap of magnetic fluid to receiver voice coil loudspeaker voice coil place, increases power, improves frequency response and reduce distortion.
The present invention is achieved through the following technical solutions:
A kind of low-distortion high-power receiver for digital communication, this receiver comprises magnet frame, magnet, voice coil loudspeaker voice coil, vibrating diaphragm and front shroud, magnet is arranged in the magnet frame, voice coil loudspeaker voice coil is arranged on around the magnet, be provided with front shroud at the magnet frame front end, vibrating diaphragm is arranged in the cavity of magnet and front shroud formation, and vibrating diaphragm is connected with voice coil loudspeaker voice coil; It is characterized in that: the magnetic gap that is arranged in magnet and magnet frame around the voice coil loudspeaker voice coil and is constituted is marked with magnetic fluid.
Magnetic fluid of the present invention is full of in the magnetic gap, and the injection rate of magnetic fluid is to be full of magnetic gap degree of being.
Among the present invention, the magnetic fluid of injection remains on magnetic gap under the effect in magnetic field, can not flow everywhere.Because voice coil loudspeaker voice coil is operated in the liquid, thereby the heat that voice coil loudspeaker voice coil produces is directly passed to magnetic fluid, passing to magnetic circuit system again by liquid distributes, so the heat dissipating state of magnetic fluid receiver be improved significantly, its rated power also just improves a lot, the existence of magnetic liquid has also strengthened the damping capacity of receiver, makes its frequency response curve more smooth.
Compared with prior art, the present invention injects magnetic fluid in the magnetic gap at receiver voice coil loudspeaker voice coil place, utilizes magnetic fluid to increase system damping and heat radiation, comprises the vibration of walking crosswise that reduces voice coil loudspeaker voice coil.The beneficial effect of receiver filling magnetic fluid is: increase power, improve frequency response and reduce distortion.
Description of drawings
Fig. 1 is the structural representation of low-distortion high-power receiver for digital communication of the present invention.
Embodiment
The present invention is described in detail below by example:
A kind of low-distortion high-power receiver for digital communication, as shown in Figure 1, this receiver comprises magnet frame 1, magnet 2, voice coil loudspeaker voice coil 3, vibrating diaphragm 4 and front shroud 5, magnet 1 is arranged in the magnet frame 2, voice coil loudspeaker voice coil 3 is arranged on around the magnet 2, be provided with front shroud 5 at magnet frame 2 front ends, vibrating diaphragm 4 is arranged in the cavity of magnet 2 and front shroud 5 formations, and vibrating diaphragm 4 is connected with voice coil loudspeaker voice coil 3; Around voice coil loudspeaker voice coil 3, be arranged in magnet 2 and be marked with magnetic fluid 6 with the magnetic gap that magnet frame 1 is constituted.The injection rate of magnetic fluid 6 is to be full of magnetic gap degree of being.
The present invention injects magnetic fluid in the magnetic gap at receiver voice coil loudspeaker voice coil place, can increase receiver power, improve the frequency response of receiver and reduce distortion.
Claims (2)
1, a kind of low-distortion high-power receiver for digital communication, this receiver comprises magnet frame (1), magnet (2), voice coil loudspeaker voice coil (3), vibrating diaphragm (4) and front shroud (5), magnet (2) is arranged in the magnet frame (1), voice coil loudspeaker voice coil (3) is arranged on magnet (2) on every side, be provided with front shroud (5) at magnet frame (1) front end, vibrating diaphragm (4) is arranged in the cavity of magnet (2) and front shroud (5) formation, and vibrating diaphragm (4) is connected with voice coil loudspeaker voice coil (3); It is characterized in that: be arranged in magnet (2) on every side at voice coil loudspeaker voice coil (3) and be marked with magnetic fluid (6) with the magnetic gap that magnet frame (1) is constituted.
2, low-distortion high-power receiver for digital communication according to claim 1 is characterized in that: described magnetic fluid (6) is full of in the magnetic gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910030332A CN101527876A (en) | 2009-03-19 | 2009-03-19 | Low-distortion high-power receiver for digital communication |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910030332A CN101527876A (en) | 2009-03-19 | 2009-03-19 | Low-distortion high-power receiver for digital communication |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101527876A true CN101527876A (en) | 2009-09-09 |
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ID=41095529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910030332A Pending CN101527876A (en) | 2009-03-19 | 2009-03-19 | Low-distortion high-power receiver for digital communication |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101527876A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014082295A1 (en) * | 2012-11-30 | 2014-06-05 | Premium Loudspeakers (Hui Zhou) Co., Ltd. | A loudspeaker with two motors and one suspension |
| CN107071671A (en) * | 2016-12-08 | 2017-08-18 | 苏州亿欧得电子有限公司 | Receiver with damping structure |
| CN107360525A (en) * | 2017-07-25 | 2017-11-17 | 苏州逸巛声学科技有限公司 | A kind of receiver and its assembly method |
-
2009
- 2009-03-19 CN CN200910030332A patent/CN101527876A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014082295A1 (en) * | 2012-11-30 | 2014-06-05 | Premium Loudspeakers (Hui Zhou) Co., Ltd. | A loudspeaker with two motors and one suspension |
| GB2522814A (en) * | 2012-11-30 | 2015-08-05 | Tymphany Hong Kong Ltd | A loudspeaker with two motors and one suspension |
| GB2522814B (en) * | 2012-11-30 | 2020-07-29 | Tymphany Hong Kong Ltd | A loudspeaker with two motors and one suspension |
| CN107071671A (en) * | 2016-12-08 | 2017-08-18 | 苏州亿欧得电子有限公司 | Receiver with damping structure |
| CN107360525A (en) * | 2017-07-25 | 2017-11-17 | 苏州逸巛声学科技有限公司 | A kind of receiver and its assembly method |
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| C12 | Rejection of a patent application after its publication | ||
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Application publication date: 20090909 |