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WO2014015640A1 - 扬声器的磁钢组件 - Google Patents

扬声器的磁钢组件 Download PDF

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Publication number
WO2014015640A1
WO2014015640A1 PCT/CN2012/087945 CN2012087945W WO2014015640A1 WO 2014015640 A1 WO2014015640 A1 WO 2014015640A1 CN 2012087945 W CN2012087945 W CN 2012087945W WO 2014015640 A1 WO2014015640 A1 WO 2014015640A1
Authority
WO
WIPO (PCT)
Prior art keywords
magnetic steel
plate
chassis
bonded
speaker
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/CN2012/087945
Other languages
English (en)
French (fr)
Inventor
华克
徐国荣
洪克军
周智敏
龚正东
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.)
JIANGSU YUCHENG ELECTRONICS Co Ltd
Original Assignee
JIANGSU YUCHENG ELECTRONICS Co Ltd
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 JIANGSU YUCHENG ELECTRONICS Co Ltd filed Critical JIANGSU YUCHENG ELECTRONICS Co Ltd
Publication of WO2014015640A1 publication Critical patent/WO2014015640A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06—Loudspeakers

Definitions

  • the utility model relates to a magnetic steel component of a speaker, which is suitable for a micro-speaker, and belongs to an electro-acoustic component of a communication and information system.
  • Existing micro-speakers are widely used in electronic products such as mobile phones and tablet computers. With the rich function of the product, the ultra-thin shape, the internal electronic components will be more and more, and the space will be more and more compact; this requires minimum interference between the electronic components, especially the magnetic components.
  • Known speakers mainly include magnetic steel, voice coil, paper cone, fixed chip and frame, and a magnetic steel (such as magnetic steel for mobile phone speakers) mainly includes magnetic steel, a plate bonded to one side of the magnetic steel, and The outer periphery of the magnetic steel is bonded to the outer periphery of the chassis with a folded edge, and the voice coil is fitted in the cavity between the outer peripheral edge of the chassis and the magnetic steel.
  • the present invention is called a magnetic steel assembly.
  • the magnetic steel assembly has been intrinsically lacking in structure, so that the leakage magnetic flux is relatively serious, resulting in poor sound quality and sound quality of the speaker, which has a serious influence on the quality of the speaker.
  • the purpose of the present invention is to provide a magnetic steel assembly of a speaker that is reasonable in structure, compact, and capable of effectively reducing the amount of magnetic leakage, thereby overcoming the deficiencies of the prior art.
  • the technical solution of the present invention is: a magnetic steel assembly of a speaker, comprising a first plate, a magnetic steel and a chassis having a flange at the outer periphery, the first plate being bonded to the magnetic steel,
  • the magnetic steel is matched with the chassis, and the folded edge of the chassis and the magnetic steel form a cavity for engaging with the voice coil of the speaker, and: further comprising at least one second plate;
  • the plate is disposed between the magnetic steel and the chassis, and the second plate is respectively bonded to the magnetic steel and the chassis.
  • the first plate is bonded to one surface of the magnetic steel by a solvent glue; the two surfaces of the second plate are respectively passed through the solvent glue and the other surface of the magnetic steel and The chassis is bonded.
  • the positive effect of the utility model is: Since at least one second electrode plate is adhered between the magnetic steel and the chassis of the utility model, the electrode plate is bonded to both surfaces of the magnetic steel And the plates on both surfaces simultaneously play the role of collecting magnetism, effectively reducing the magnetic flux leakage of the chassis.
  • the leakage flux of the chassis is reduced by more than 50% compared with the prior art, and does not affect the acoustic characteristics of the speaker itself, such as frequency response and resonant frequency.
  • the object of the present invention is achieved.
  • FIG. 1 is a schematic structural view of a specific embodiment of the present invention.
  • Figure 2 is a schematic exploded view of the present invention. detailed description
  • a magnetic steel assembly of a speaker includes an iron first plate 1, a magnetic steel 2, and an iron chassis 4 having a flange 4-1 on the outer periphery, and the first plate 1 Bonded to one surface of the magnetic steel 2, the magnetic steel 2 to which the first plate 1 is bonded is fitted to the chassis 4, and the folded edge 4-1 of the chassis 4 is bonded to the first plate
  • the magnetic steel 2 of 1 constitutes a cavity 5 for engaging with the voice coil of the speaker, and further comprises at least one iron second plate 3; the second plate 3 is arranged between the magnetic steel 2 and the chassis 4 And the second plate 3 is bonded to the other surface of the magnetic steel 2 and the chassis 4, respectively.
  • the first plate 1 is bonded to one surface of the magnetic steel 2 by a solvent glue; the two surfaces of the second plate 3 are respectively bonded to the other surface of the magnetic steel 2 and the chassis 4 by solvent glue.
  • the magnetic steel 2 may be a magnet or a rare earth magnet; and the number of the second plates 3 is 1 to 5.
  • the plurality of second plates 3 are sequentially laminated and bonded integrally.

Landscapes

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

Description

扬声器的磁钢组件 技术领域
[0001] 本实用新型涉及一种扬声器的磁钢组件， 适用于微型扬声器， 属于通讯、 信息系统 的电声元器件。
背景技术
[0002] 现有的微型扬声器广泛应用于手机、 平板电脑等电子产品上。 随着产品功能的丰 富， 外形的超薄化， 内部电子元件相对会越来越多， 空间也会越来越紧凑； 这就要求各电子 元件之间的相互干涉达到最小， 特别是磁性元件。 公知的扬声器主要包括磁钢、 音圈、 纸 盆、 定芯片和框架， 而有种磁钢 （例如手机扬声器等的磁钢） 又主要包括磁钢， 与磁钢一面 粘接的极板， 和与磁钢另一面粘接的外周具有折边的底盘， 音圈则卡装在底盘外周折边与磁 钢之间的空腔内。 鉴于所述的 "磁钢" 由磁钢、 极板和底盘所组成， 因而本实用新型称之为 磁钢组件。 已有所述磁钢组件， 由于存在结构性不足以致其漏磁比较严重， 导致扬声器的音 响和音质较差， 给扬声器的质量造成较为严重的影响。
发明内容
[0003] 本实用新型的目的是： 提供一种结构合理、 紧凑， 且能有效降低漏磁量的扬声器的 磁钢组件， 以克服现有技术的不足。
[0004] 为了达到上述目的， 本实用新型的技术方案是： 一种扬声器的磁钢组件， 包括第一 极板、 磁钢和外周具有折边的底盘， 第一极板与磁钢粘接， 所述磁钢与底盘相配装， 且所述 底盘的折边与磁钢之间构成用于与扬声器音圈相卡装的空腔， 而其： 还包括至少 1个第二极 板； 第二极板设在磁钢和底盘之间， 且第二极板分别与所述磁钢以及底盘粘接。
[0005] 在上述技术方案中， 所述第一极板是通过溶剂胶与磁钢的一个表面粘接的； 第二极 板的两个表面是分别通过溶剂胶与磁钢的另一个表面以及底盘粘接的。
[0006] 本实用新型所具有的积极效果是： 由于本实用新型所述磁钢与底盘之间还粘接有至 少 1个第二极板， 使得磁钢两个表面上均粘接有极板， 而其两表面的极板同时起到聚磁的作 用， 有效降低了底盘的漏磁量。 经实验表明， 底盘的漏磁量较已有技术降低了 50%以上， 同 时也不影响扬声器本身的声学特性， 如频率响应、 谐振频率等。 实现了本实用新型的目的。 附图说明
[0007] 图 1是本实用新型一种具体实施方式的结构示意图；
图 2是本实用新型的爆炸示意图。 具体实施方式
[0008] 以下结合附图以及给出的实施例， 对本实用新型作进一步的说明， 但并不局限于 此。
[0009] 如图 1、 2所示， 一种扬声器的磁钢组件， 包括铁质第一极板 1、 磁钢 2和外周具有 折边 4-1的铁质底盘 4， 第一极板 1粘接在磁钢 2的一个表面上， 所述粘接有第一极板 1的 磁钢 2与底盘 4相配装， 且所述底盘 4的折边 4-1与粘接有第一极板 1的磁钢 2之间构成用 于与扬声器音圈相卡装的空腔 5， 还包括至少 1个铁质第二极板 3; 第二极板 3设在磁钢 2 和底盘 4之间， 且第二极板 3分别与所述磁钢 2的另一个表面以及底盘 4粘接。 所述第一极 板 1是通过溶剂胶与磁钢 2的一个表面粘接的； 第二极板 3的两个表面是分别通过溶剂胶与 磁钢 2的另一个表面以及底盘 4粘接的。
[0010] 在上述实施方式中， 所述磁钢 2也可以是磁铁， 或者是稀土磁件； 而所述第二极板 3 的个数是 1至 5个。 当第二极板 3有 2个以上时， 则多个第二极板 3依次叠合粘接成一体。
[0011] 本实用新型初样试用效果是很好的。

Claims

WO 2014/015640 权 利 要 求 书 PCT/CN2012/087945
1. 一种扬声器的磁钢组件， 包括第一极板 （1 )、 磁钢 （2) 和外周具有折边 （4-1 ) 的底盘 (4)， 第一极板 （1 ) 与磁钢 （2) 粘接， 所述磁钢 （2) 与底盘 （4) 相配装， 且所述底盘 (4) 的折边 （4-1 ) 与磁钢 （2) 之间构成用于与扬声器音圈相卡装的空腔 （5 )， 其特征在 于： 还包括至少 1 个第二极板 （3 ); 第二极板 （3) 设在磁钢 （2) 和底盘 （4) 之间， 且第 二极板 （3) 分别与所述磁钢 （2) 以及底盘 （4) 粘接。
2. 根据权利要求 1 所述的扬声器的磁钢组件， 其特征在于： 所述第一极板 （1 ) 是通过溶剂 胶与磁钢 （2) 的一个表面粘接的； 第二极板 （3 ) 的两个表面是分别通过溶剂胶与磁钢
(2) 的另一个表面以及底盘 （4) 粘接的。
PCT/CN2012/087945 2012-07-24 2012-12-29 扬声器的磁钢组件 Ceased WO2014015640A1 (zh)

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CN 201220359800 CN202713591U (zh) 2012-07-24 2012-07-24 扬声器的磁钢组件
CN201220359800.9 2012-07-24

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201328188Y (zh) * 2008-11-24 2009-10-14 浙江毅林电子有限公司 低音手机扬声器
CN201515488U (zh) * 2009-09-27 2010-06-23 常州市武进悦达电声器材有限公司 一种扬声器
CN201699973U (zh) * 2010-07-23 2011-01-05 江苏裕成电子有限公司 一种扬声器
CN201947436U (zh) * 2011-01-05 2011-08-24 瑞声光电科技(常州)有限公司 发声器

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201328188Y (zh) * 2008-11-24 2009-10-14 浙江毅林电子有限公司 低音手机扬声器
CN201515488U (zh) * 2009-09-27 2010-06-23 常州市武进悦达电声器材有限公司 一种扬声器
CN201699973U (zh) * 2010-07-23 2011-01-05 江苏裕成电子有限公司 一种扬声器
CN201947436U (zh) * 2011-01-05 2011-08-24 瑞声光电科技(常州)有限公司 发声器

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