WO2009043219A1 - Nouveau type de convertisseur audio - Google Patents

Nouveau type de convertisseur audio Download PDF

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Publication number
WO2009043219A1
WO2009043219A1 PCT/CN2008/000070 CN2008000070W WO2009043219A1 WO 2009043219 A1 WO2009043219 A1 WO 2009043219A1 CN 2008000070 W CN2008000070 W CN 2008000070W WO 2009043219 A1 WO2009043219 A1 WO 2009043219A1
Authority
WO
WIPO (PCT)
Prior art keywords
audio converter
vibration
base
voice coil
disk
Prior art date
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.)
Ceased
Application number
PCT/CN2008/000070
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English (en)
Chinese (zh)
Inventor
Jun Ma
Junhong Zhang
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of WO2009043219A1 publication Critical patent/WO2009043219A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R15/00—Magnetostrictive transducers

Definitions

  • the present invention relates to the field of audio equipment, and more particularly to a novel audio converter.
  • the mainstream of audio converters used in the field of audio equipment today is a conventional moving coil speaker, which is composed of a permanent magnet system, a voice coil and a paper cone.
  • the integrated structure of the voice coil and the paper cone is fixed by the core.
  • the support piece is suspended in a circular magnetic gap formed by a permanent magnet.
  • the alternating magnetic field acts on the permanent magnetic field to cause the voice coil to move, which in turn pushes the paper cone to produce motion sound.
  • traditional loudspeakers have many drawbacks, such as narrow frequency response range and poor directivity, which seriously affect the sound reproduction, which restricts its further development in the field of electro-acoustic and becomes the bottleneck of speaker development.
  • the new audio converter developed according to the magnetic magnetic circuit structure independently developed by us over the years combined with the new vibration transmission structure solves the advantages of the audio transducer that maintains the rare earth magnetostrictive material as the driving component.
  • An object of the present invention is to provide a novel audio converter which is improved in structure, which solves the defects of narrow frequency response and poor directivity of a conventional speaker, and also solves the problem of rare earth magnetostrictive material.
  • the audio transducer of the drive element has a low cost-effectiveness and a high production cost.
  • a novel audio converter includes an upper cover and a base with an internal groove, a base and an alternately stacked lower magnet, a soft iron, an upper magnet and a magnetic balance piece forming a magnetic energy device and fixed at the bottom of the groove, at the base and A voice coil is installed in the gap of the collecting magnetic energy device, and one end of the voice coil is led out through the lead hole on the base, and the other end of the voice coil is fixed on the bottom surface of the vibration transmitter.
  • the shock absorber consists of a disc-shaped shrapnel, a shock-collecting top cap and a seismic diaphragm.
  • the shock-absorbing top cap is fixedly connected to the disc-shaped shrapnel, and the seismic seismic piece is closely connected with the top of the shock-collecting top cap; or the seismic transmission plate and the dish shape
  • the shrapnel fixed connection constitutes the structure of the shock absorber.
  • the disc-shaped shrapnel can be made of metal or composite material with high elastic modulus.
  • the whole seismic transmission device is fixed on the upper part of the base.
  • the top wire can be screwed on the disc-shaped elastic piece, and the disc-shaped elastic piece can be changed by adjusting the tightness of the top wire.
  • the vibration amplitude controls the high and low frequency vibration output intensity.
  • the surface of the vibration transmission sheet is covered with a rubber gasket to increase the tightness of the fit.
  • the working principle of the present invention is described as follows: After the voice coil is energized, vibration is generated in the strong magnetic field generated by the collecting magnetic energy device and transmitted through the vibration transmitter. Since the vibration transmitting sheet closely adheres to the surface of the attached body, the attached body vibrates.
  • the invention has the following advantages:
  • the magnetic energy converter is used in the audio converter, this has a strong magnetic field in the gap where the voice coil is located, and only a small voice coil current can make the voice coil generate strong vibration.
  • the low-cost defect of the audio transducer of the rare earth magnetostrictive material as the driving component greatly improves the mountability of the audio device.
  • the coil vibration is transmitted through the vibration transmitter, so that the attachment body vibrates and sounds, so that the sound wave has no directivity, fast response, frequency bandwidth, and good fidelity. .
  • the top wire installed on the disc-shaped shrapnel can easily adjust the tightness to change the vibration amplitude of the disc-shaped shrapnel. Control the high-low frequency vibration output intensity, so that the acoustic effect can be adjusted with the attachment material.
  • the structure of the invention is simple, the audio adjustment and maintenance are convenient, the cost is low, the volume is small, the weight is light, and the portable installation is convenient.
  • Figure 1 is a structural view of Embodiment 1 of the present invention
  • Figure 1 1, upper cover; 2, rubber ring; 3, base; 4, voice coil; 5, top wire; 6, soft iron; 7, sealing ring; , seismic diaphragm; 9, gasket; 10, shock absorber top cap; 1 1, magnetic balance sheet; 12, gasket; 14; lower magnet; 15, lead hole; 16, disc-shaped shrapnel; 17, upper magnet
  • Figure 2 is a structural view of the second embodiment of the present invention; Figure: 1, upper cover; 2, rubber ring; 4, voice coil; 5, top wire; 6, soft iron; 7, seismic plate; 8, gasket; 9, disc-shaped shrapnel; 10, washer; 1 1, screw; 12, lower magnet, 13, magnetic Balance sheet; 14, upper magnet; 15, lead hole;
  • a novel audio converter comprising an upper cover 1 and a base 3 having an internal recess, the base and the alternately stacked lower magnet 14, the soft iron 6, the upper magnet 17 and the magnetic balance piece 1 1 form a magnetic energy device, and are fixed At the bottom of the groove, a voice coil 4 is mounted in the gap between the base and the magnetic energy collecting device, and one end of the voice coil is connected to the external circuit through the lead hole 15 opened in the base, and the other end of the voice coil is fixed on the bottom surface of the vibration transmitter.
  • the shock absorber is composed of a disc-shaped elastic piece 16, a conical shock-collecting top cap 10 and a seismic transmission piece 8.
  • the shock-absorbing top cap is fixedly connected to the disc-shaped elastic piece, and the seismic transmission piece is closely connected with the top of the shock-collecting top cap, the disc-shaped elastic piece Made of stainless steel or FRP composite material with large modulus of elasticity, the whole seismic transmission device is fixed on the upper part of the base.
  • the top wire 5 can be installed on the disc-shaped elastic piece by thread connection, and the vibration of the disk-shaped elastic piece can be changed by adjusting the tightness of the top wire.
  • the amplitude controls the high and low frequency vibration output intensity.
  • the upper surface of the vibration transmission sheet is covered with a rubber gasket 9 to increase the tightness of the fit.
  • a novel audio converter comprising an upper cover 1 and a base 3 having an internal recess, the base and the alternately stacked lower magnet 12, the soft iron 6, the upper magnet 14 and the magnetic balance sheet 13 constitute a collecting magnetic energy device, and are fixed at At the bottom of the IHJ slot, a voice coil 4 is mounted in the gap between the base and the collecting magnetic energy device, and one end of the sound coil is connected to the external circuit through the lead hole 15 opened in the base, and the other end of the voice coil is fixed on the bottom surface of the vibration transmitter.
  • the diaphragm and the disc-shaped shrapnel are fixedly connected to form a knot of the shock absorber.
  • the disc-shaped shrapnel of the vibrator is made of stainless steel or FRP composite material with large elastic modulus, and the whole seismic transmission device is fixed on the upper part of the base, on the disc-shaped elastic piece. It is also possible to install the top wire 5 by means of a threaded connection, and to change the vibration of the disk-shaped shrapnel by adjusting the tightness of the top wire. The amplitude controls the high and low frequency vibration output intensity. In order to make the surface of the vibration plate and the attachment body better fit, the upper surface of the vibration transmission sheet is covered with a rubber gasket 8 to increase the tightness of the fit. In the working of the invention, after the voice coil is energized, a vibration is generated in the strong magnetic field generated by the collecting magnetic energy device, and the vibration is transmitted through the vibration transmitter to make the attachment body closely attached to the seismic sheet vibrate.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)

Abstract

Un nouveau type de convertisseur audio peut générer un fort champ magnétique dans une zone de réglage de bobine acoustique à l'aide d'un équipement de convergence d'énergie magnétique fixé dans la fente de base, un côté de la bobine acoustique étant relié à un fil de sortie, le fil de sortie s'étendant à travers un trou de passage découpé sur la base, l'autre côté de la bobine acoustique étant fixé sur la partie inférieure d'un appareil vibrant, et l'appareil vibrant entier étant fixé sur le côté supérieur de la base, après application d'électricité, la bobine acoustique libère une vibration dans le champ magnétique, la vibration est transférée à travers l'appareil vibrant de sorte que la partie annexée qui est étroitement liée à la plaque vibrante peut générer des sons. La présente invention permet de résoudre le problème de coût élevé mais de faible efficacité du haut-parleur de l'état antérieur de la technique, en outre, l'onde sonore ne présente aucune directivité, et la réponse est rapide, la bande de fréquences est large, ce qui entraîne une fidélité élevée.
PCT/CN2008/000070 2007-09-29 2008-01-10 Nouveau type de convertisseur audio Ceased WO2009043219A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200710151765.5 2007-09-29
CN2007101517655A CN101400010B (zh) 2007-09-29 2007-09-29 一种新型音频转换器

Publications (1)

Publication Number Publication Date
WO2009043219A1 true WO2009043219A1 (fr) 2009-04-09

Family

ID=40518206

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2008/000070 Ceased WO2009043219A1 (fr) 2007-09-29 2008-01-10 Nouveau type de convertisseur audio

Country Status (2)

Country Link
CN (1) CN101400010B (fr)
WO (1) WO2009043219A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107464737A (zh) * 2017-08-28 2017-12-12 广西电网有限责任公司电力科学研究院 一种稳固的质谱离子源及其安装方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010087007A1 (fr) * 2009-01-30 2010-08-05 パイオニア株式会社 Dispositif de haut-parleur
CN102215443A (zh) * 2010-04-07 2011-10-12 朱多亮 一种新型振动音频驱动器

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1388729A (zh) * 2002-07-01 2003-01-01 斯贝克电子（嘉善）有限公司 双对称磁路双音圈双定心支片扬声器
CN1951146A (zh) * 2004-06-23 2007-04-18 松下电器产业株式会社 电声变换器和使用其的电子设备
CN101014213A (zh) * 2006-02-01 2007-08-08 三洋电机株式会社 扬声器单元

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1219834A (zh) * 1997-12-12 1999-06-16 张凡 扬声器
CN201114758Y (zh) * 2007-09-29 2008-09-10 马钧 一种新型音频转换器

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1388729A (zh) * 2002-07-01 2003-01-01 斯贝克电子（嘉善）有限公司 双对称磁路双音圈双定心支片扬声器
CN1951146A (zh) * 2004-06-23 2007-04-18 松下电器产业株式会社 电声变换器和使用其的电子设备
CN101014213A (zh) * 2006-02-01 2007-08-08 三洋电机株式会社 扬声器单元

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107464737A (zh) * 2017-08-28 2017-12-12 广西电网有限责任公司电力科学研究院 一种稳固的质谱离子源及其安装方法
CN107464737B (zh) * 2017-08-28 2024-03-08 广西电网有限责任公司电力科学研究院 一种稳固的质谱离子源及其安装方法

Also Published As

Publication number Publication date
CN101400010B (zh) 2012-03-21
CN101400010A (zh) 2009-04-01

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