WO2013170510A1 - 用于动铁式扬声器或受话器中的电枢装置 - Google Patents

用于动铁式扬声器或受话器中的电枢装置 Download PDF

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Publication number
WO2013170510A1
WO2013170510A1 PCT/CN2012/076554 CN2012076554W WO2013170510A1 WO 2013170510 A1 WO2013170510 A1 WO 2013170510A1 CN 2012076554 W CN2012076554 W CN 2012076554W WO 2013170510 A1 WO2013170510 A1 WO 2013170510A1
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Prior art keywords
armature
receiver
moving iron
speaker
vibrating tongue
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PCT/CN2012/076554
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English (en)
French (fr)
Inventor
周巍
李梁
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Zhou Wei
Li Liang
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Publication of WO2013170510A1 publication Critical patent/WO2013170510A1/zh

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    • 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

Definitions

  • the present invention relates to an energy conversion and vibration generating device, and more particularly to an armature device applied to a moving iron speaker or a receiver, belonging to the fields of electroacoustics and micromechanics. Background technique
  • the armature devices for moving iron speakers or receivers on the market generally adopt “U” type and "E” type.
  • the "U” type armature When used, the "U” type armature is bent by its “U” type. It is connected to the yoke and the other end is used as a vibration transducing part.
  • the manufacturing process of the armature is relatively short, but the variation between the workpieces during the manufacturing process is large and the subsequent assembly process 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.
  • the armature Compared with the "U” type armature, the armature is slightly assembled, but the armature is very complicated and the workpiece is made.
  • the difference between the two is large, and the manufacturing cost is extremely high.
  • the existing armature devices are ubiquitous in manufacturing process complexity, and the subsequent assembly manpower and equipment cost are high; further, various frequency response requirements for different moving iron speakers or receivers in specific applications, because There is no mechanical stiffness adjustment mechanism for the tube.
  • the existing armature device needs special mode, but the existing armature device has relatively high manufacturing cost, which limits the scope of use of the specific armature device and weakens its competition.
  • Summary of the invention The invention aims to propose an armature device for a moving iron speaker or a receiver, which combines the advantages of the traditional armature design and reasonably avoids its structural defects, and can significantly improve the electroacoustic performance of the related speaker or receiver product.
  • the content of the present invention has good manufacturability and large cost advantages, thereby overcoming the deficiencies in the prior art, and has good implementation and market promotion.
  • An armature device for use in a moving iron speaker or a receiver device comprising a vibrating tongue, a supporting pin, and a connecting portion, wherein: the vibrating tongue is located in the middle of the armature, and the supporting pin has two Strips are symmetrically distributed on both sides of the vibrating tongue, and are connected to the vibrating tongue as a whole through the connecting portion.
  • the armature device is a planar structure, that is, the vibrating tongue included in the armature device, the supporting pin, and the connecting portion are on the same horizontal plane.
  • the vibrating tongue is further provided with a mechanical stiffness adjusting mechanism, which is embodied as a notch which is symmetrically distributed inwardly of the edge of the vibrating tongue.
  • the armature device is fabricated from soft iron, A3 steel, and permalloy on the material.
  • the armature device is made by a die-cutting molding process in the manufacturing process.
  • the armature device may be selected from resistance welding, laser welding or ultrasonic welding when assembled with the yoke device in the moving iron speaker or the receiver due to the solderability of the material selected therein.
  • the invention integrates its design advantages and reasonablely avoids structural defects on the basis of ensuring the smooth flow of the magnetic circuit, and adopts an innovative integrated plane.
  • the structure is convenient for punching and forming, greatly enlarging the manufacturing process of the armature device, and has a good Achievability and greater cost advantages;
  • the armature device of the present invention also innovatively incorporates a mechanical stiffness adjustment mechanism on the vibrating tongue, which can reasonably reduce the mechanical strength of the vibrating tongue on the basis of maintaining the high sensitivity inherent to the moving iron speaker or the receiver. Degree, enhance the response of the product voice frequency band, optimize its electroacoustic performance;
  • the mechanical stiffness adjusting mechanism according to the present invention also allows various derivations and changes to be realized by slightly changing the shape of the mechanical stiffness adjusting mechanism without changing the mechanical shape of the main portion of the armature device.
  • the application of the body to meet the frequency response requirements of different speakers or receivers greatly expands 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 an armature device for use in a moving iron speaker or a receiver according to the present invention
  • FIG. 4 is an armature device for use in a moving iron speaker or receiver of the present invention, which is applied to a moving iron speaker or receiver. Schematic diagram of the cross-section;
  • B1-vibration conduction device B2-armature device, B 3-diaphragm, B4-yoke, B5-magnet piece, B6-induction coil, B7-shield case, B8-induction coil signal line, B9-sound port .
  • the embodiment relates to an armature device B2 applied to a moving iron speaker or a receiver, which comprises a vibrating tongue A1, a supporting pin A2 and a connecting portion A3, wherein the vibrating tongue A1 is located at the electric In the middle of the pivoting device B2, the two supporting pins A2 are symmetrically distributed on both sides of the vibrating tongue A1, and are integrally connected with the vibrating tongue A1 through the connecting portion A3 to constitute the armature device B2.
  • the armature device B2 has a planar structure, that is, the vibrating tongue A1, the supporting pin A2, and the connecting portion A3 of the armature device B2 are on the same horizontal plane, preferably, the armature device B2 in this embodiment adopts a punching. Cut once molding process.
  • the shape of the mechanical stiffness adjusting machine disposed on the vibrating tongue A1 of the armature device B2 in this embodiment can be adjusted on the basis of the guaranteed magnetic circuit to change the mechanical stiffness of the armature device B2. Therefore, it can meet various frequency response requirements of different moving iron speakers or receivers.
  • the two supporting pins A2 of the armature device B2 are fixedly connected with the yoke device B4, and combined with the magnet piece B5 and the induction coil B6 to form the moving iron type. Vibration/transformation drive mechanism in the speaker or receiver.
  • the front end of the middle vibrating tongue 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 will push and pull according to the principle of the same pole repulsive and the opposite pole attraction and the magnet piece B5, thereby driving the vibration conduction 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 makes a sound, completes from electric energy to magnetic energy to mechanical energy. The end effect of the sound 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 an innovative integrated planar structure, which is convenient for one-time forming processing.
  • the manufacturing process of the armature device is greatly compressed, and has good achievability and large cost advantage; the armature device of the present invention also innovatively adds a mechanical stiffness adjusting mechanism to the vibrating tongue.
  • the mechanical stiffness of the vibrating tongue is reasonably reduced, the response of the product voice frequency band is enhanced, and the electroacoustic performance is optimized; in addition, the mechanical stiffness adjustment involved in the present invention is adjusted.
  • the mechanism also allows a variety of derivative and variant applications to be implemented to finely modify the shape of the mechanical stiffness adjustment mechanism without changing the mechanical shape of the main part of the armature device to meet the frequency response requirements of different speakers or receivers. , greatly expanding the scope of its use, making it have a large space for technological development and a good market push Wide.

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

Abstract

本发明公开了一种具有改良结构的用于动铁式扬声器或受话器中的电枢装置，其包括振动舌片，支撑引脚，连接部分，所述振动舌片位于电枢中部，通过所述连接部分与对称分布于所述振动舌片两侧的两条所述支撑引脚连接为一整体，其特征在于：所述电枢装置整体为一平面结构。进一步的，振动舌片上还置有机械劲度调整机构。本发明的优点至少在于：相比传统电枢装置，采用了整体平面结构，在保证产品磁回路畅通的情况下，极大提升了电枢的可制造性，显著降低了加工成本；同时，创新地在振动舌片上加入了机械劲度调整机构，在保持动铁式扬声器或受话器固有的高灵敏度的基础上，合理降低了振动舌片的机械劲度，增强了产品语音频段的响应，优化了其电声性能。

Description

用于动铁式扬声器或受话器中的电枢装置 技术领域
本发明涉及一种能量转换与振动发生装置， 特别涉及一种应用于动铁式扬 声器或受话器中的电枢装置， 属于电声学和微型机械学领域。 背景技术
目前市场上的用于动铁式扬声器或受话器的电枢装置普遍采用 "U"型， "E" 型两种方式， 使用时， "U" 型电枢由其 "U" 型弯折的一端与磁轭连接， 另一端 作为振动换能部分， 此种电枢的制造流程相对较短， 但制造过程中工件间变差 大且后续组装工艺复杂； "E" 型电枢使用其 "E" 型两端与磁轭连接， "E" 型中 间部分为振动换能部分， 此种电枢较之 "U" 型电枢而言， 后续组装工艺略为筒 单， 但电枢制作非常复杂且工件间变差大， 制造成本极高。 总之， 现有的电枢 装置普遍存在制造工艺复杂， 且后续组装人力及设备成本高等不足； 更进一步 的， 对于不同的动铁式扬声器或受话器在具体应用中产生的各种频率响应需求， 因为没有筒便的机械劲度调整机构， 现有的电枢装置需要专模专用， 但现有电 枢装置模具制造费用都比较高昂， 从而限制了特定电枢装置的使用范围， 削弱 了其竟争优势。 发明内容 本发明旨在提出一种用于动铁式扬声器或受话器的电枢装置， 其综合了传 统电枢设计的优点并合理规避了其结构缺陷， 可以显著的改善相关扬声器或受 话器产品的电声性能， 并且， 本发明内容具有良好的可制造性和较大成本优势， 从而克服了现有技术中的不足， 具有很好的实现性和市场推广性。
为实现上述发明目的， 本发明采用了如下技术方案：
一种用于动铁式扬声器或受话器装置中的电枢装置， 包括振动舌片， 支撑 引脚， 连接部分， 其特征在于： 所述振动舌片位于电枢中部， 所述支撑引脚共 有两条， 对称地分布于所述振动舌片两侧， 并通过所述连接部分与所述振动舌 片连接为一整体。
进一步讲， 所述电枢装置为一平面结构， 即所述电枢装置所包括的振动舌 片， 支撑引脚， 连接部分处于同一水平面上。
所述振动舌片上还置有机械劲度调整机构， 其具体表现为对称分布于所述 振动舌片边沿的向内 EJ进的缺口。
所述电枢装置在材料上使用软铁、 A3钢以及坡莫合金来制造。
同时， 所述电枢装置在制作工艺上由冲切一次成型工艺制成。
此外， 所述电枢装置由于其选用材料的可焊性， 在与所述动铁式扬声器或 受话器中的磁轭装置装配时， 其具体连接方式可选择电阻焊接、 激光焊接或超 声波焊接。
与现有技术相比， 本发明的优点在于：
( 1 )较之现有 "U" 型， "E" 型电枢装置， 本发明在保证磁路畅通的基础 上综合了其设计优点并合理规避了其结构缺陷， 采用了创新的一体式平面结构， 方便于进行冲切一次成型加工， 极大地筒化了电枢装置的制造工艺， 具有很好 的可实现性和较大的成本优势；
( 2 ) 本发明中的电枢装置还在振动舌片上创新地加入了机械劲度调整机 构， 可以在保持动铁式扬声器或受话器固有的高灵敏度的基础上， 合理降低振 动舌片的机械劲度， 增强产品语音频段的响应， 优化其电声性能；
( 3 )本发明中所涉及的机械劲度调整机构还允许在不改变电枢装置主要部 分的机械形状的情况下， 以细微改动机械劲度调整机构的形状的方法来实现各 种衍生、 变体应用， 以满足不同扬声器或受话器的频率响应需求， 大大扩宽了 其使用范围， 使其具有较大的技术拓展空间和很好的市场推广性。 附图说明
图 1是现有 "U" 型电枢装置结构示意图；
图 2是现有 "E" 型电枢装置结构示意图；
图 3是本发明用于动铁式扬声器或受话器中的电枢装置结构示意图； 图 4 是本发明用于动铁式扬声器或受话器中的电枢装置应用于一种动铁式 扬声器或受话器中的剖面结构示意图；
图中各附图标记及其所指示的组件分别为：
A1-振动舌片， A2-支撑引脚， A 3-连接部分， A4-机械劲度调整机构
B1-振动传导装置， B2-电枢装置， B 3-振膜， B4-磁轭， B5-磁铁片， B6-感 应线圈， B7-屏蔽壳， B8-感应线圈信号线， B9-出声口。 具体实施方式
以下结合附图及一较佳实施例对本发明的技术方案作进一步的说明。 参阅图 3-4 , 本实施例涉及一种应用于动铁式扬声器或受话器的电枢装置 B2 , 其包括振动舌片 A1 , 支撑引脚 A2和连接部分 A3组成， 前述振动舌片 A1位 于电枢装置 B2中部， 前述支撑引脚 A2共有两条， 对称地分布于振动舌片 A1两 侧， 并通过前述连接部分 A3与振动舌片 A1连接为一整体， 构成电枢装置 B2。
由于电枢装置 B2为一平面结构， 即电枢装置 B2所包括的振动舌片 A1 , 支 撑引脚 A2 , 连接部分 A3 处于同一水平面上， 优选的， 该实施例中的电枢装置 B2采用冲切一次成型工艺制作。
此外， 该实施例中的电枢装置 B2之振动舌片 A1上还置有机械劲度调整机 的形状可以在保证磁路的基础上做出调整， 以改变电枢装置 B2的机械劲度， 从 而满足不同动铁式扬声器或受话器的各种频响要求。
当具体的应用于动铁式扬声器或受话器中时， 前述电枢装置 B2的两支撑引 脚 A2与磁轭装置 B4固定连接， 并和磁铁片 B5与感应线圈 B6组合， 共同构成 前述动铁式扬声器或受话器中的振动 /换能驱动机构。 而前述电枢装置 B2 的中 部振动舌片 A1的前端则用于和振动传导装置 B1连接。
工作时， 交变电流信号沿感应线圈信号线 B8通过感应线圈 B6 , 并由此产生 电磁感应效应而感生交变磁场， 前述交变磁场会磁化前述振动 /换能驱动机构中 的电枢装置 B2 , 前述电枢装置 B2 会根据同极相斥， 异极相吸的原理与磁铁片 B5发生推拉作用， 从而带动连接于电枢装置 B2上的振动传导装置 B1沿与电枢 装置 B2正交的方向产生振动位移， 当振动位移由振动传导装置 B1传播到与其 连接的振膜 B3时， 前述振膜 B3受驱动产生振动， 带动其周围空气振动， 从而 由置于屏蔽壳 B7前端的出声口 B9发出声音， 完成由电能至磁能再至机械能最 终至声能的换能效应。
本发明较之现有的电枢装置， 在保证磁路畅通的基础上综合了其设计优点 并合理规避了其结构缺陷， 采用了创新的一体式平面结构， 方便于进行冲切一 次成型加工， 极大地筒化了电枢装置的制造工艺， 具有很好的可实现性和较大 的成本优势； 本发明中的电枢装置还在振动舌片上创新地加入了机械劲度调整 机构， 可以在保持动铁式扬声器或受话器固有的高灵敏度的基础上， 合理降低 振动舌片的机械劲度， 增强产品语音频段的响应， 优化其电声性能； 此外， 本 发明中所涉及的机械劲度调整机构还允许在不改变电枢装置主要部分的机械形 状的情况下， 以细微改动机械劲度调整机构的形状的方法来实现各种衍生、 变 体应用， 以满足不同扬声器或受话器的频率响应需求， 大大扩宽了其使用范围， 使其具有较大的技术拓展空间和很好的市场推广性。
以上对本发明的目的、 技术方案和有益效果进行了进一步详细说明， 所应 理解的是， 以上所述仅为本发明的较佳实施例而已， 并不用于限制本发明， 凡 在本发明的精神和原则之内， 所做的任何修改、 等同替换、 改进等， 均应包含 在本发明的保护范围之内。

Claims

权 利 要 求 书
1. 一种用于动铁式扬声器或受话器装置中的电枢装置， 包括振动舌片， 支 撑引脚， 连接部分， 其特征在于： 所述振动舌片位于电枢中部， 所述支撑引脚 共有两条， 对称地分布于所述振动舌片两侧， 并通过所述连接部分与所述振动 舌片连接为一整体。
2. 根据权利要求 1所述的一种用于动铁式扬声器或受话器装置中的电枢装 置， 其特征在于： 所述电枢装置为一平面结构， 即所述电枢装置所包括的振动 舌片， 支撑引脚， 连接部分处于同一水平面上。
3. 根据权利要求 1或 2所述的一种用于动铁式扬声器或受话器装置中的电 枢装置， 其特征在于： 所述振动舌片上置有机械劲度调整机构， 其具体表现为 对称分布于所述振动舌片边沿的向内 EJ进的缺口。
4. 根据权利要求 1所述的一种用于动铁式扬声器或受话器装置中的电枢装 置， 其特征在于： 所述电枢装置在材料上使用软铁、 A3钢以及坡莫合金来制造。
5. 根据权利要求 1所述的一种用于动铁式扬声器或受话器装置中的电枢装 置， 其特征在于： 所述电枢装置在制作工艺上由冲切一次成型工艺制成。
6. 根据权利要求 1或 2所述的一种用于动铁式扬声器或受话器装置中的电 枢装置， 其特征在于： 所述电枢装置具体的应用于所述动铁式扬声器或受话器 中时， 所述扬声器或受话器中的磁轭装置与所述电枢装置的两侧支撑 )脚连接， 并和磁铁片与感应线圈组合， 共同构成所述动铁式扬声器或受话器中的振动、 换能驱动机构。 当交变电流信号通过所述感应线圈， 并由此产生电磁感应效应 而感生交变磁场， 所述交变磁场会磁化前述振动、 换能驱动机构中的电枢装置， 所述电枢装置会根据同极相斥， 异极相吸的原理与所述磁片发生推拉作用， 从 而带动连接于所述电枢装置上的振动舌片沿与所述电枢装置所在平面正交的方 向产生振动位移， 当振动位移传导到所述扬声器或受话器中的振膜上， 所述振 膜受驱动产生振动， 带动其周围空气振动， 从而发出声音， 完成由电能至磁能 再至机械能最终至声能的换能效应。
7. 根据权利要求 6所述的一种用于动铁式扬声器或受话器装置中的电枢装 置， 其特征在于： 所述电枢装置具体的应用于所述动铁式扬声器或受话器中时， 所述电枢装置与动铁式扬声器或受话器的磁轭装置之间的连接方式为电阻焊 接、 激光焊接或超声波焊接。
PCT/CN2012/076554 2012-05-18 2012-06-07 用于动铁式扬声器或受话器中的电枢装置 WO2013170510A1 (zh)

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CN104796809A (zh) * 2015-04-14 2015-07-22 苏州亿欧得电子有限公司 新型结构的受话器
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CN106028242B (zh) * 2016-07-15 2019-11-12 深圳倍声声学技术有限公司 一种动铁受话器
CN106028230A (zh) * 2016-07-27 2016-10-12 深圳倍声声学技术有限公司 一种音圈动铁喇叭
CN107580287A (zh) * 2017-07-28 2018-01-12 苏州逸巛声学科技有限公司 一种受话器及其装配方法

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