WO2013044550A1 - Appareil d'armature pour microphone/transducteur à fer mobile - Google Patents

Appareil d'armature pour microphone/transducteur à fer mobile Download PDF

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Publication number
WO2013044550A1
WO2013044550A1 PCT/CN2011/082122 CN2011082122W WO2013044550A1 WO 2013044550 A1 WO2013044550 A1 WO 2013044550A1 CN 2011082122 W CN2011082122 W CN 2011082122W WO 2013044550 A1 WO2013044550 A1 WO 2013044550A1
Authority
WO
WIPO (PCT)
Prior art keywords
armature
vibration
transducer
moving iron
armature device
Prior art date
Application number
PCT/CN2011/082122
Other languages
English (en)
Chinese (zh)
Inventor
周巍
Original Assignee
苏州恒听电子有限公司
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 苏州恒听电子有限公司 filed Critical 苏州恒听电子有限公司
Publication of WO2013044550A1 publication Critical patent/WO2013044550A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R11/00—Transducers of moving-armature or moving-core type
    • H04R11/04—Microphones
    • 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
    • H04R2400/01—Transducers used as a loudspeaker to generate sound aswell as a microphone to detect sound
    • 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
    • H04R2400/03—Transducers capable of generating both sound as well as tactile vibration, e.g. as used in cellular phones

Definitions

  • the present invention relates to an energy conversion and vibration generating device, and more particularly to an armature device for use in a micro-moving iron microphone/transducer, and belongs to the field of electroacoustics and micro-mechanics.
  • the armature devices for moving iron microphones/transducers currently on the market generally adopt the "U” type, "E” type or flat type.
  • the "U” type armature When used, the "U” type armature is made up of its “U”. One end of the bending is connected to the yoke, and the other end is used as a vibration transducing part.
  • the armature is made in a relatively simple manner, but the variation between the workpieces is large and the assembly process at the rear end is complicated; the "E” type armature uses its “E” "The two ends of the type are connected to the yoke, and the middle part of the "E” type is the vibration transducing part.
  • This armature is mechanically more rigid than the "U” type armature, but the armature is very complicated to manufacture and the difference between the workpieces is large.
  • the flat armature is similar to the "E” type armature and is also relatively simple to manufacture. However, the flatness of the workpiece and the mechanical structure of the workpiece with which it is matched have become the bottleneck for its widespread use. In short, the existing armature devices generally have insufficient structural rigidity, poor resistance to mechanical impulses, complicated manufacturing processes, and high human and equipment costs.
  • the armature device needs special material, and it is impossible to flexibly change the stiffness of the transducer part by fine-tuning the mechanical shape of the connection part, thereby limiting the scope of use of the specific armature device and weakening its competitive advantage.
  • the present invention is directed to an armature device for a moving iron microphone/transducer that combines tradition
  • the advantages of the armature design and reasonable avoidance of its structural defects can effectively improve the mechanical impact resistance of the armature device, and the content of the invention has good manufacturability and large cost advantages, thereby overcoming the prior art. Insufficient.
  • the various derivative and variant applications of the present invention also greatly expand the scope of its use, so that it has a large technical expansion space and good market promotion.
  • An armature device for a moving iron microphone/transducer comprising a vibration transducing portion at a middle portion thereof, a connecting portion of a magnetic conductive portion and a tail end of the both side wings, characterized in that: the vibration transducing The portion is a planar structure, and the armature device is constructed by connecting the connecting portion which is a planar structure and the magnetic guiding portions of the two side wings orthogonal thereto.
  • the armature device can be changed by adjusting only the mechanical shape of the connecting portion without changing the vibration transducing and magnetically permeable portions.
  • the mechanical rigidity of the armature device is achieved.
  • the specific implementation has two kinds of concave and convex shapes, and the shapes are (but not limited to): semi-circular, circular, triangular, square, rectangular and trapezoidal; convex Semicircles, arcs, triangles, squares, rectangles, and trapezoids.
  • the armature device is made of a soft magnetic alloy such as soft iron, A3 steel, or permalloy which is relatively high in magnetic permeability.
  • the armature device is made by a punching and bending one-shot forming process in the manufacturing process.
  • the armature device may be selected from resistance, laser or ultrasonic welding due to the weldability of the material of its choice, and the connection between the vibration conduction of the moving iron microphone/transducer and the yoke device.
  • the invention ensures the magnetic circuit is smooth On the basis of the combination, the design advantages are integrated and the structural defects are reasonably avoided.
  • the unique vibration transducing part and the magnetic conducting part are orthogonal to each other, which can effectively improve the mechanical impact resistance of the armature device;
  • the armature structure design of the invention is clean and stable, and is convenient for punching and bending processing, and has better manufacturability and greater cost advantage than the conventional armature structure;
  • the armature device of the present invention can also adjust the mechanical shape of the connecting portion to change the mechanical rigidity of the system without changing the vibration transducing and the magnetic conductive portion to realize various derivative and variant applications to satisfy different microphones.
  • the frequency response requirements of the transducer greatly expand the scope of its use, giving it a large space for technological development and good marketability.
  • FIG. 1 is a schematic structural view of a conventional "U" type armature device
  • FIG. 2 is a schematic structural view of a conventional "E" type armature device
  • FIG. 3 is a schematic structural view of a conventional flat armature device
  • Figure 4 is a schematic view showing the structure of an armature device for a moving iron microphone/transducer according to the present invention
  • Figure 5 is an armature device for a moving iron microphone/transducer of the present invention applied to a moving iron microphone/ Schematic diagram of the cross-sectional structure in the transducer;
  • Figure 6 is a schematic view showing various derivations and variants of the connecting portion of the armature device for the moving iron microphone/transducer of the present invention.
  • A1-vibration transducing section A2-magnetic conducting section, A3-connecting section
  • B1-vibration conduction device B2-armature device, B3-diaphragm, B4-yoke, B5-magnet, B6-induction coil, B7-shield, B8-induction coil signal line, B9-speaker.
  • the present embodiment relates to an armature device B2 for use in a moving iron microphone/transducer comprising a vibration transducing portion A1 at its central portion, a magnetically conductive portion A2 and a trailing end of the wings on both sides
  • the connecting portion A3 is composed of the above-mentioned vibration transducing portion A1 which is divided into a planar structure, and is connected to the two-winged magnetic conducting portion A2 which is orthogonal to the planar connecting portion A3, and constitutes the armature device B2.
  • the armature device B2 in this embodiment is fabricated by a punching and bending one-shot forming process.
  • the two-side wing magnetic conducting portion A2 of the armature device B2 is fixedly connected to the yoke device B4, and combined with the magnet piece B5 and the induction coil B6 to form the aforementioned Vibration/transformation drive mechanism in a moving iron microphone/transducer. Further, the front end protruding portion of the central vibration transducing portion A1 of the armature device B2 is connected to the vibration transmitting device B1.
  • the alternating current signal passes through the induction coil B6 along the induction coil signal line B8, and thereby generates an electromagnetic induction effect to induce an alternating magnetic field, and the alternating magnetic field magnetizes the armature device in the vibration/transmission drive mechanism.
  • the armature device B2 is pushed and pulled according to the principle of the same pole repulsive and the opposite pole attraction, and the magnet piece B5 is pushed and pulled, thereby driving the vibration conducting device B1 connected to the armature device B2 to be orthogonal to the armature device B2.
  • the direction of the vibration is generated.
  • the diaphragm B3 When the vibration displacement is transmitted from the vibration transmitting device B1 to the diaphragm B3 connected thereto, the diaphragm B3 is driven to generate vibration, causing the surrounding air to vibrate, thereby being emitted from the front end of the shielding shell B7.
  • Port B9 emits a sound that completes the transducing effect from electrical energy to magnetic energy to mechanical energy and finally to acoustic energy.
  • the invention integrates the design advantages and reasonablely avoids the structural defects on the basis of ensuring the smooth flow of the magnetic circuit, and adopts a structure in which the unique vibration transducing portion is orthogonal to the magnetic conductive portion.
  • the utility model can effectively improve the mechanical shock resistance of the armature device and prolong the service life of the microphone/transducer product using the armature device of the invention; moreover, the armature structure of the invention is designed to be clean, stable and convenient. Punching, bending, production equipment and related mold structures are much larger than conventional armatures, so they have better manufacturability and greater cost advantages; the armature device of the present invention can also be used without changing vibrations.
  • the mechanical shape of the connecting part is adjusted to change the mechanical stiffness of the system to achieve various derivative and variant applications to meet the frequency response requirements of different microphones/transducers.
  • the specific implementation has two kinds of concave and convex shapes, and the shapes are (but not limited to): semi-circular, circular, triangular, square, rectangular and trapezoidal; convex Semi-circular, circular, triangular, square, rectangular and trapezoidal, which greatly expands the scope of its use, giving it a large technical expansion space and Of good marketing.

Abstract

L'invention concerne un appareil d'armature présentant une structure améliorée destinée à être utilisée dans un microphone/transducteur à fer mobile, lequel appareil d'armature comprend une partie de transduction des vibrations (A1) située au centre d'une armature, des parties magnétiquement conductrices (A2) dans deux membres latéraux, et une partie de connexion (A3) à l'extrémité, caractérisé en ce que la partie de transduction des vibrations présente une structure plane et est reliée aux parties magnétiquement conductrices par l'intermédiaire de la partie de connexion qui présente également une structure plane, dans les deux membres latéraux qui sont orthogonaux à celle-ci, pour former l'appareil d'armature. Les avantages de la présente invention résident pour le moins dans le fait que, par comparaison à des appareils d'armature classiques, la structure mécanique de la partie de transduction des vibrations, au centre de l'armature, et des parties magnétiquement conductrices, est améliorée et permet une augmentation significative de la résistance de l'appareil d'armature aux chocs mécanique; par comparaison à des concepts classiques, le concept d'appareil d'armature de la présente invention présente une meilleure aptitude à la fabrication et ses coûts sont plus faibles; de plus, l'appareil d'armature peut également répondre au besoin de disposer de réponses en fréquence différentes de divers microphones/transducteurs par modification de la forme mécanique de la partie de connexion tout en modifiant les parties de transduction des vibrations et de conduction magnétique, cela ouvrant un large domaine d'application.
PCT/CN2011/082122 2011-09-30 2011-11-12 Appareil d'armature pour microphone/transducteur à fer mobile WO2013044550A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201110291219.8 2011-09-30
CN2011102912198A CN103037294A (zh) 2011-09-30 2011-09-30 用于动铁式传声器/换能器的电枢装置

Publications (1)

Publication Number Publication Date
WO2013044550A1 true WO2013044550A1 (fr) 2013-04-04

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2011/082122 WO2013044550A1 (fr) 2011-09-30 2011-11-12 Appareil d'armature pour microphone/transducteur à fer mobile

Country Status (2)

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CN (1) CN103037294A (fr)
WO (1) WO2013044550A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106255019A (zh) * 2016-08-24 2016-12-21 苏州倍声声学技术有限公司 防水型动铁受话器

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112203199B (zh) * 2019-07-08 2022-02-08 歌尔股份有限公司 换能器振动悬挂系统、换能器及电子设备

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58104597A (ja) * 1981-12-17 1983-06-22 Matsushita Electric Ind Co Ltd 電磁型変換器
GB2229339A (en) * 1989-03-14 1990-09-19 Microtel Bv Acoustic transducer
WO2000074435A2 (fr) * 1999-06-01 2000-12-07 Microtronic Nederland B.V. Ensemble armature et elements magnetiques destine a un transducteur electroacoustique
US20020142795A1 (en) * 2001-04-02 2002-10-03 Star Micronics Co., Ltd. Receiver and portable communication device
US20050276433A1 (en) * 2004-06-14 2005-12-15 Miller Thomas E Magnetic assembly for a transducer
WO2010132425A2 (fr) * 2009-05-11 2010-11-18 Knowles Electronics, Llc Armature et ensemble récepteur à faibles vibrations axiales

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7194099B2 (en) * 2003-06-10 2007-03-20 Motorola, Inc. Handheld electronics devices with multiple user sensory transducers and methods
CN202385273U (zh) * 2011-09-30 2012-08-15 苏州恒听电子有限公司 用于动铁式传声器/换能器的电枢装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58104597A (ja) * 1981-12-17 1983-06-22 Matsushita Electric Ind Co Ltd 電磁型変換器
GB2229339A (en) * 1989-03-14 1990-09-19 Microtel Bv Acoustic transducer
WO2000074435A2 (fr) * 1999-06-01 2000-12-07 Microtronic Nederland B.V. Ensemble armature et elements magnetiques destine a un transducteur electroacoustique
US20020142795A1 (en) * 2001-04-02 2002-10-03 Star Micronics Co., Ltd. Receiver and portable communication device
US20050276433A1 (en) * 2004-06-14 2005-12-15 Miller Thomas E Magnetic assembly for a transducer
WO2010132425A2 (fr) * 2009-05-11 2010-11-18 Knowles Electronics, Llc Armature et ensemble récepteur à faibles vibrations axiales

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106255019A (zh) * 2016-08-24 2016-12-21 苏州倍声声学技术有限公司 防水型动铁受话器

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