WO2013170508A1 - Dispositif à culasse magnétique utilisé dans un récepteur téléphonique ou un haut-parleur à fer mobile - Google Patents

Dispositif à culasse magnétique utilisé dans un récepteur téléphonique ou un haut-parleur à fer mobile Download PDF

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Publication number
WO2013170508A1
WO2013170508A1 PCT/CN2012/076549 CN2012076549W WO2013170508A1 WO 2013170508 A1 WO2013170508 A1 WO 2013170508A1 CN 2012076549 W CN2012076549 W CN 2012076549W WO 2013170508 A1 WO2013170508 A1 WO 2013170508A1
Authority
WO
WIPO (PCT)
Prior art keywords
yoke device
moving iron
yoke
iron speaker
receiver
Prior art date
Application number
PCT/CN2012/076549
Other languages
English (en)
Chinese (zh)
Inventor
周巍
李梁
Original Assignee
Zhou Wei
Li Liang
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 Zhou Wei, Li Liang filed Critical Zhou Wei
Publication of WO2013170508A1 publication Critical patent/WO2013170508A1/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
    • H04R11/02—Loudspeakers
    • 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
    • H04R11/06—Telephone receivers

Definitions

  • the present invention relates to a soft magnetic device for transmitting magnetic lines of force, and more particularly to a yoke device for use in a moving iron speaker or receiver device, and belongs to the field of electroacoustics and micromechanics. Background technique
  • the yoke devices for moving iron speakers or receivers on the market are mostly laminated and cast.
  • the laminated type firstly forms an annular sheet having a yoke sectional feature by punching, and then mechanically assists in stacking the sheets, and finally the stacked sheets are joined by a resistance welding method to form a yoke;
  • a casting mold corresponding to the desired yoke is first produced, and the desired yoke is cast by powder metallurgy.
  • the shape characteristics of the two existing yoke devices define the structure and volume of the related products.
  • the existing two methods generally have the disadvantages of complicated manufacturing process, large process variation, and high cost; further, stacking
  • the resistance welding process used in the chip generates a large amount of heat to destroy the internal magnetic circuit structure of the yoke and reduce its magnetic permeability, and the cast yoke leaves a lot of dense air gap due to its own characteristics of powder metallurgy.
  • the internal magnetic circuit structure of the yoke is destroyed, so that its magnetic permeability is lowered.
  • Such structural, economic and functional deficiencies have constrained the development of related moving iron speakers and receiver products, greatly weakening their competitive advantage.
  • the invention aims to propose a yoke device for a moving iron speaker and a receiver with an improved structure and a manufacturing process, and the improved structure greatly reduces the related product structure, reduces the product cost, and breaks through the moving iron speaker. Or the inherent size limitation of the receiver, broadening its application range; and thus the improved structure-derived manufacturing process is more non-destructive to magnetic permeability than the conventional process, improves the magnetic circuit structure, and improves product performance, thereby overcoming the prior art. Insufficient.
  • a yoke device for a moving iron speaker or a receiver wherein the yoke device is a two-piece structure including an upper portion and a lower portion; and the upper portion of the yoke device is a four-sided half-box
  • the structure has an open groove on one side of the upper portion; the lower portion of the yoke device is also a four-sided half-cassette structure, and a through hole is formed on the bottom surface of the lower portion .
  • the upper and lower parts of the yoke device are combined, they are aligned and fixedly connected by edges, and the front end of the yoke device is enclosed.
  • the combination of the upper portion and the lower portion of the yoke device is resistance welding, laser welding, ultrasonic welding or adhesive bonding.
  • the yoke device is fabricated from a soft iron, A3 steel, permalloy or ferrite material.
  • the upper and lower portions of the yoke device are fabricated by a single die-cutting enclosing structure, a secondary punching, and punching in the manufacturing process.
  • the bottom surface of the upper portion and the bottom surface of the lower portion of the yoke device are respectively fixedly connected with a magnet piece; the lower edge of the yoke device is For fixed connection with the armature; an open groove on the side of the upper portion of the yoke device is used as a sound transmission port of the moving iron speaker or the receiver; and a through hole on the bottom surface of the lower portion of the yoke device is Used as a pneumatic balance port for the moving iron speaker or receiver.
  • the yoke device enclosed by the upper and lower parts can also be used as the outer casing on the basis of the magnetic circuit of the moving iron speaker or the receiver, which greatly reduces the product structure and not only reduces
  • the product cost has also broken through the inherent size limitations of moving iron speakers or receivers, significantly reducing the size of the product and broadening its application range;
  • the yoke device derived from the improved structural design is more compact and low-cost, and has more magnetic non-destructive performance than the conventional process, improves the magnetic circuit structure, and improves product performance.
  • Figure 1 is a schematic view of a conventional laminated yoke device
  • Figure 2 is a schematic view of a conventional cast yoke device
  • Figure 3 is a perspective front perspective view of a yoke device for a moving iron speaker or a receiver of the present invention
  • Figure 4 is a rear perspective view of a yoke device for a moving iron speaker or a receiver of the present invention
  • B1 - yoke device B2-armature, B3 - vibration conduction device, B4 - magnet piece, B5 - diaphragm system, B6 - magnetic induction coil
  • the embodiment relates to a yoke device B1 for a moving iron speaker or a receiver.
  • the yoke device B1 is a two-piece structure including an upper portion A1 and a lower portion A2.
  • the upper portion A1 of the yoke device B1 is a four-faceted semi-cassette structure, and an open groove A3 is disposed on one side of the upper portion; the lower portion A2 of the yoke device B1 is also a four-sided circumference.
  • a through hole A4 is formed on the bottom surface of the lower portion A2.
  • the upper portion A1 and the lower portion A2 of the yoke device Bl are aligned and fixedly connected to each other to form a yoke device Bl enclosed at the front end.
  • the combination of the upper portion A1 and the lower portion A2 of the yoke device B1 is laser welding, and the joint of the upper portion A1 and the lower portion A2 is melted by using a laser beam, and then cooled to form a fixed connection.
  • Connection methods that can be used include resistance welding, ultrasonic welding, or adhesive bonding.
  • the yoke device B1 uses permalloy as a raw material for production, and besides, optional materials include soft iron, ferrite, and the like.
  • the upper portion A1 and the lower portion A2 of the yoke device B1 are manufactured by one-time punching and forming enclosure structure, secondary punching and punching in the manufacturing process.
  • the bottom surface of the upper portion A1 of the yoke device B1 and the bottom surface of the lower portion A2 are fixedly connected to a magnet piece B4;
  • the rim of the lower portion A2 of the yoke device B1 is used for fixed connection with the armature C2.
  • the alternating current signal passes through the magnetic induction coil B6, and thereby generates an electromagnetic induction effect to induce an alternating magnetic field.
  • the alternating magnetic field magnetizes the armature B2, and the magnetized armature B2 repels according to the same pole.
  • the principle of attracting and the magnet piece B4 are pushed and pulled to drive the vibration transmitting device B3 welded to the armature B2 to generate a vibration displacement in a direction orthogonal to the armature B2, and the vibration displacement is transmitted to the vibration transmitting device B3 to be connected thereto.
  • the diaphragm system B5 is driven to generate vibration and drive around it.
  • the through hole A4 is used as a pneumatic balance port of the moving iron speaker or receiver.
  • the yoke device enclosed by the upper and lower parts in the present invention can also be used as the outer casing on the basis of the magnetic circuit of the moving iron speaker or the receiver, which greatly reduces the product structure, and not only reduces
  • the product cost also breaks through the inherent size limitation of the moving iron speaker or receiver, which significantly reduces the size of the product and broadens its application range.
  • the manufacturing process of the yoke device derived from the improved structural design is more The single tube, low cost, and more non-destructive magnetic permeability than the traditional process, improve the magnetic circuit structure and improve product performance.

Landscapes

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

Abstract

La présente invention se rapporte à un dispositif à culasse magnétique utilisé dans un récepteur téléphonique ou un haut-parleur à fer mobile, et dont la structure et les procédés de fabrication ont été améliorés. Le dispositif selon l'invention comprend une partie supérieure et une partie inférieure, les deux parties étant toutes les deux des structures de moitié de boîtier encloisonnées sur quatre côtés. Une face latérale de la partie supérieure du dispositif à culasse magnétique comporte une gorge ouverte, tandis que la face de dessous de la partie inférieure comprend un trou de passage. Quand les parties supérieure et inférieure du dispositif à culasse magnétique sont assemblées, les parties sont alignées le long des bords et sont reliées de façon sûre, encloisonnant la face avant. La présente invention présente les avantages suivants, pour n'en citer que quelques-uns : tout en garantissant le circuit magnétique du récepteur téléphonique ou du haut-parleur à fer mobile, le dispositif à culasse magnétique qui est encloisonné par les parties supérieure et inférieure est également apte à agir lui-même en tant qu'un boîtier, ce qui simplifie considérablement la structure du dispositif et permet, non seulement de réduire le coût du dispositif mais également de se libérer des contraintes de dimensions inhérentes à un récepteur téléphonique ou à un haut-parleur à fer mobile. Cela permet de réduire par ailleurs, et dans une large mesure, les dimensions extérieures du dispositif et d'élargir par là même sa plage de service. En outre, l'amélioration de la conception structurelle simplifie les procédés de fabrication du dispositif à culasse magnétique, réduit les coûts, et fait appel à des procédés qui ont un effet moins négatif sur la conductivité magnétique que les procédés traditionnels. La structure du circuit magnétique peut ainsi être améliorée et les performances du dispositif peuvent être accrues.
PCT/CN2012/076549 2012-05-18 2012-06-07 Dispositif à culasse magnétique utilisé dans un récepteur téléphonique ou un haut-parleur à fer mobile WO2013170508A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201210154164.0A CN103428619B (zh) 2012-05-18 2012-05-18 用于动铁式扬声器或受话器的磁轭装置
CN201210154164.0 2012-05-18

Publications (1)

Publication Number Publication Date
WO2013170508A1 true WO2013170508A1 (fr) 2013-11-21

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2012/076549 WO2013170508A1 (fr) 2012-05-18 2012-06-07 Dispositif à culasse magnétique utilisé dans un récepteur téléphonique ou un haut-parleur à fer mobile

Country Status (2)

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CN (1) CN103428619B (fr)
WO (1) WO2013170508A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104581577B (zh) * 2014-12-31 2018-09-11 苏州逸巛声学科技有限公司 一种简易结构的受话器
CN106412779A (zh) * 2016-06-24 2017-02-15 苏州亿欧得电子有限公司 动铁受话器的新型锷铁结构
CN107135449A (zh) * 2017-05-27 2017-09-05 苏州亿欧得电子有限公司 一种具有新型磁导结构的动铁受话器
CN107734442B (zh) * 2017-09-28 2023-12-12 深圳市长盈精密技术股份有限公司 一种马达的制备方法及马达组件

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05316594A (ja) * 1992-05-14 1993-11-26 Matsushita Electric Ind Co Ltd スピーカ用内磁型磁気回路
CN1290949A (zh) * 1999-06-24 2001-04-11 Abb专利有限公司 电磁断路器
WO2012029219A1 (fr) * 2010-08-31 2012-03-08 富士電機機器制御株式会社 Commutateur électromagnétique

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202587365U (zh) * 2012-05-18 2012-12-05 周巍 用于动铁式扬声器或受话器的磁轭装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05316594A (ja) * 1992-05-14 1993-11-26 Matsushita Electric Ind Co Ltd スピーカ用内磁型磁気回路
CN1290949A (zh) * 1999-06-24 2001-04-11 Abb专利有限公司 电磁断路器
WO2012029219A1 (fr) * 2010-08-31 2012-03-08 富士電機機器制御株式会社 Commutateur électromagnétique

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Publication number Publication date
CN103428619A (zh) 2013-12-04
CN103428619B (zh) 2018-04-03

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