WO2021035868A1 - 发声装置及电子设备 - Google Patents

发声装置及电子设备 Download PDF

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Publication number
WO2021035868A1
WO2021035868A1 PCT/CN2019/108801 CN2019108801W WO2021035868A1 WO 2021035868 A1 WO2021035868 A1 WO 2021035868A1 CN 2019108801 W CN2019108801 W CN 2019108801W WO 2021035868 A1 WO2021035868 A1 WO 2021035868A1
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WIPO (PCT)
Prior art keywords
voice coil
cone
diaphragm assembly
electrical connection
housing
Prior art date
Application number
PCT/CN2019/108801
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English (en)
French (fr)
Inventor
王亚南
赵荣秀
邵明辉
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歌尔股份有限公司
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Application filed by 歌尔股份有限公司 filed Critical 歌尔股份有限公司
Publication of WO2021035868A1 publication Critical patent/WO2021035868A1/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
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H04R9/025—Magnetic circuit
    • 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
    • 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
    • H04R2400/11—Aspects regarding the frame of loudspeaker transducers

Definitions

  • the invention relates to a sound emitting device and electronic equipment using the sound emitting device.
  • the speaker As a kind of electro-acoustic conversion device, the speaker is widely used in various electronic devices to realize the basic sound function. In recent years, with the rise of smart speakers and smart home industries, more and more space is needed to assemble smart control systems, etc. The space reserved for speakers for consumer electronic terminal products is no longer as sufficient as traditional speakers, especially It is in the height direction, that is, relative to the volume of the speaker itself, thinning has increasingly become an important development trend.
  • the voice coil and the conductive terminal are generally connected by leads. After assembly, the leads are located between the composite cone and the centering support. In order to avoid rubbing the leads during the vibration process, the Z direction is required to be Enough space is reserved for the lead, which is obviously not conducive to achieving the requirements of product thinning.
  • the prior art attempts to sew the leads into the centering support piece to reduce the height requirement in the Z direction.
  • the centering The size of the support piece itself will be greatly reduced. If the lead is sewn into the centering support piece, the fatigue of the centering support piece will easily cause the thread to break; and for some products, especially for those centering support pieces, in terms of compliance The effect of the product is far greater than that of the folding ring product. Sewing the lead wire on the centering support will further aggravate its influence on the acoustic performance of F 0 , THD and so on.
  • a sound generating device includes a housing and a magnetic circuit system and a vibration system respectively connected and fixed with the housing; the vibration system includes a voice coil assembly and a diaphragm assembly that are connected and fixed to each other, and the voice coil assembly is electrically connected
  • the structure is connected to an external circuit, wherein the electrical connection structure includes an inner conductive part provided on the voice coil assembly, an outer conductive part provided on the housing, and an electrical connection between the inner conductive part and the outer conductive part
  • the electrical connection part; the electrical connection part is at least partially wrapped inside the diaphragm assembly.
  • the voice coil assembly includes a voice coil bobbin and a voice coil wound on the outer peripheral surface of the voice coil bobbin; the inner conductive part is an inner pad provided on the voice coil bobbin.
  • the outer conductive part is an outer pad that is injection-molded on the housing.
  • the diaphragm assembly includes a cone and a folding ring that are combined by injection molding, and at least part of the electrical connection part is injection molded in the inner space of the cone and the folding ring.
  • the electrical connection portion includes an inner connection portion for electrically connecting with the inner conductive portion, an outer connection portion for electrically connecting with the outer conductive portion, and an inner connection portion for connecting the inner connection portion and the The middle part of the outer connecting part.
  • the cone as a whole has a tapered ring structure with open ends, and the inner connecting portion penetrates from the bottom opening of the cone and is welded to the inner pad of the voice coil frame.
  • the middle portion extends from the inner connecting portion along the tapered surface of the cone to a position close to the outer pad of the housing, and the outer connecting portion corresponds to the outer edge of the folding ring , And welded and fixed with the outer pad of the shell.
  • the electrical connection part is a wire whose main body is wrapped inside the diaphragm assembly.
  • the entire middle portion of the wire is located inside the diaphragm assembly; or, the whole of the wire is located inside the diaphragm assembly.
  • the middle part of the wire includes a first part embedded in the inner side of the cone and a second part embedded in the inner side of the folding ring.
  • the diaphragm assembly and the voice coil skeleton are connected together; there are two inner pads, which are symmetrically arranged on the outer peripheral surface of the voice coil skeleton, and are close to the diaphragm assembly and the voice coil frame. Describe the position where the voice coil bobbin is connected.
  • the casing is provided with a connecting surface connected and fixed to the outer edge of the diaphragm assembly, and two protrusions are provided on the side of the casing, and the protrusions are connected from the The outer end of the surface extends horizontally to the outside, and there are two corresponding outer pads, which are respectively located on the protruding part.
  • the magnetic circuit system includes a U iron, a magnet arranged in the U iron, and a magnetic conductive plate attached to the surface of the magnet;
  • the magnetic circuit system includes a T iron, a magnet sleeved on the outside of the core post of the T iron, and a magnetic conductive plate attached to the surface of the magnet.
  • the sound device provided by the present invention uses the basic structure of the vibration system in the prior art to at least partially wrap the electrical connection part for conducting the internal and external circuits inside the diaphragm assembly.
  • the technical solution replaces the traditional design
  • the design that the lead wire in the middle is located between the composite basin and the centering support plate, so that it is no longer necessary to reserve space for the electrical connection part in the Z direction, which is beneficial to make the sound device applying the vibration system thinner;
  • the electrical connection part is wrapped in the diaphragm assembly, which can be flexibly aligned along the diaphragm assembly.
  • the alignment track can be adjusted , On the basis of not affecting the acoustic performance, improve the disconnection problem caused by the fatigue of the centering piece, and improve the reliability.
  • the electrical connection part is injection molded in the inner space of the cone and the folding ring, and the electrical connection part is injection molded in the inner space of the cone and the folding ring by means of the conventional injection molding method of the diaphragm assembly. Inside, it is easier to implement and easy to operate, without the need to introduce additional processing techniques.
  • an electronic device including the above-mentioned sound emitting device.
  • the electronic device is a speaker or a stereo.
  • the electronic device of the present invention can leave more space to accommodate other devices or systems, and has reliable acoustic performance.
  • Fig. 1 is an overall structure diagram of a sound emitting device according to an embodiment of the present invention
  • FIG. 2 is a top view of a part of the structure of the sound generating device according to the embodiment of the present invention.
  • FIG 3 is a cross-sectional view of the sound generating device according to the embodiment of the present invention after the magnetic circuit is removed.
  • Voice coil assembly 11, voice coil, 12, voice coil frame, 121, inner pad, 2. diaphragm assembly, 21, folding ring, 22, cone, 3. electrical connection, 31, internal connection , 32, middle part, 33, external connection part, 4, external conductive part, 5, housing, 51, protruding part.
  • the present invention provides a sound generating device, which includes a housing and a magnetic circuit system and a vibration system respectively connected and fixed to the housing.
  • the vibration system includes a voice coil assembly and a diaphragm assembly that are connected and fixed to each other.
  • the component is connected to an external circuit through an electrical connection structure.
  • the electrical connection structure includes an inner conductive part provided on the voice coil assembly, an outer conductive part provided on the housing, and an electrical connection part that electrically connects the inner conductive part and the outer conductive part.
  • the electrical connection part is at least partially wrapped inside the diaphragm assembly.
  • the sound generating device of this embodiment includes a housing 5 and a magnetic circuit system (not explicitly shown) and a vibration system respectively connected and fixed to the housing 5, wherein the vibration system It includes a voice coil assembly 1 and a diaphragm assembly 2 connected to each other.
  • the voice coil assembly 1 includes a voice coil 11 and a voice coil bobbin 12.
  • the voice coil 11 is wound on the outer circumference of the voice coil bobbin 12 and is located on the voice coil.
  • the voice coil skeleton 12 can provide support for the voice coil 11 and can serve as a bridge connecting the voice coil 11 and the diaphragm assembly 2.
  • a number of ventilation holes may be provided on the voice coil frame 12. The above content is well known to those skilled in the art, and will not be repeated here.
  • the diaphragm assembly 2 includes a folding ring 21 and a cone 22 that are combined by injection molding.
  • the folding ring 21 is configured to include an arc-shaped protrusion.
  • the outer side is usually fixed on the housing of the sound device, and the inner side is connected to the cone 22.
  • the cone 22 and the voice coil skeleton 12 are combined together, so that the integral connection of the voice coil assembly 1 and the diaphragm assembly 2 is realized.
  • the normal operation of the sound device is to produce sound by reciprocating motion under the force of an electromagnetic field, which requires a corresponding electrical connection structure to conduct the internal and external telecommunications of the vibration system.
  • it is specifically implemented by the inner conductive portion, the electrical connection portion 3, and the outer conductive portion 4.
  • an inner conductive portion is provided on the voice coil bobbin 12, and the inner conductive portion may be an inner pad. 121.
  • the inner pad 121 is electrically connected to the outer conductive portion 4 through the electrical connection portion 3, and the external current signal is transmitted to the voice coil 11 through the above-mentioned route.
  • two inner pads 121 are preferably provided, and they are provided symmetrically in the outer circumferential direction of the voice coil bobbin 12.
  • the electrical connection part 3 and the outer conductive part 4 are also preferably provided correspondingly to two.
  • the use of two symmetrically arranged conductive structures can prevent the polarization caused by the asymmetry of the structure to a certain extent.
  • the electrical connection portion 3 specifically selects a wire (brick wire), which includes an inner connection portion 31 for electrically connecting with the inner pad 121, and an outer connection portion for electrically connecting with the outer conductive portion 4 33 and an intermediate portion 32 connecting the inner connecting portion 31 and the outer connecting portion 33.
  • a wire (brick wire)
  • the wire it is an integrally formed wire body.
  • the distinction is made according to the different functions of different parts.
  • this technical solution considering that in the prior art, when the wire is arranged between the composite basin and the centering support piece, it is necessary to reserve a certain amount of space in the Z direction of the product to avoid rubbing the wire during vibration. On the other hand, considering that the performance will be affected when the wire is braided in the centering support piece, this application wraps at least part of the wire inside the diaphragm assembly 2.
  • the electrical connection portion 33 is preferably injection molded integrally with the cone 22 and the folding ring 21, that is, the electrical connection portion 3 includes injection molding on the diaphragm.
  • the internal part of component 2. Take this as an example in the specific description below.
  • the cone 22 has a tapered ring structure with two ends open as a whole, and the inner connecting portion 31 of the two wires can be welded to the sound through the bottom opening of the cone 22.
  • the inner pad 121 can be arranged at a position close to the voice coil frame 12 where it is connected to the cone 22, so that when the inner connecting portion 31 of the wire passes through the bottom opening, it is naturally and The inner pad 121 can be soldered. After the wire is welded to the inner pad 121, it continues to extend from the inner connecting portion 31 along the cone surface of the cone 22, and extends to a position close to the outer conductive portion 4 of the sounding device.
  • This portion is defined as the middle portion 32, and the outer connecting portion 33 corresponds to the inner connecting portion 31 and is the part of the wire used to electrically connect with the outer conductive portion 4.
  • the outer connecting portion 33 corresponds to the outer edge of the folding ring 21 and is fixed to the outer conductive portion 4 by welding.
  • the cone 22 described here refers to the cone structure that forms the diaphragm assembly together with the folding ring 21. In the specific forming process, the cone 22 is not formed at one time, but is formed first. Part of the structure and related parts will be explained in detail in the part of the molding method.
  • At least part of the wire used as the electrical connection part 3 is injection molded inside the cone 22 and the folding ring 21, and this part is wrapped by the cone 22 and the folding ring 21 as a whole. Except for the small part of the wire used for welding with the inner pad 121 and the outer conductive part 4, the middle part of the entire wire can be integrally injected into the inside of the diaphragm assembly 2. Of course, it is not ruled out that all the wires are injected into the diaphragm assembly.
  • the internal method of 2 can be flexibly designed according to the specific needs.
  • the part wrapped inside by the cone 22 is defined as the first part
  • the part wrapped inside by the fold ring 21 is defined as the second part.
  • the material of the cone 22 is preferably paper
  • the material of the folding ring is preferably rubber, such as silicone rubber. Wait.
  • this is only an exemplary description, and is not used to limit the present invention, and other materials may also be used, which do not affect the implementation of the technical solution.
  • the outer conductive part 4 in this embodiment, it can be specifically two outer pads that are injection molded on the housing 5.
  • the housing 5 is provided with a diaphragm
  • the outer edge of the assembly 2 (specifically the outer edge of the folding ring 21) is connected to the fixed connecting surface.
  • Two protrusions 51 are provided on the side of the housing 5, and the protrusions 51 extend horizontally from the outer end of the connecting surface.
  • the outer side extends, so that two structures capable of accommodating outer pads are formed on the outer side of the housing 5. Since the protruding portion 51 extends horizontally from the connecting surface of the housing 5 and the folding ring 21, the height of the product is not increased in the Z direction.
  • the sounding device of the system is made thinner; on the other hand, compared with the method of sewing leads in the centering support piece in the prior art, the alignment track can be adjusted without affecting the acoustic performance. Improve the broken wire problem caused by the fatigue of the centering piece.
  • the magnetic circuit system either an inner magnetic circuit structure or an outer magnetic circuit structure can be used.
  • the magnetic circuit system may include a U iron, a magnet arranged in the U iron, and a magnetic conductive plate attached to the surface of the magnet;
  • the magnetic circuit system may include T iron, a magnet sleeved on the outside of the core column of the T iron, and a magnetic conductive plate attached to the surface of the magnet.
  • a cone of partial thickness is first injected.
  • the part of the thickness mentioned here can be 1/2 thickness, or it can be a thickness of other proportions compared to the whole.
  • the formed cone 22 is not strictly a true cone, but only a part of the cone. , But for the convenience of explanation, the cone 22 here is used to indicate the cone structure connected with the folding ring 21.
  • the electrical connection part 3 is a wire; the wire extends from the bottom opening of the cone 22 and runs along the outer cone surface of the formed cone 22 to the outer conductive part 4
  • the wire Continue to follow the cone surface of the cone 22 along the line, and when it reaches the top end of the cone 22, continue to follow the direction of the outward conductive part 4, and finally follow the outer edge of the folding ring 21, and the outer conductive part 4 Welding and fixing.
  • the fold ring 21 is injection-molded.
  • the fold ring 21 and the cone 22 are injection-molded to form the diaphragm assembly 2, and the wire is simultaneously integrally injected with the cone 22 and the fold ring 21 after molding.
  • the wire wrapped by the folding ring 21 is mainly the part of the wire that is not wrapped by the cone 22 in S3 in the S2 alignment step. Through the S4 step, the entire middle of the wire can be embedded in the diaphragm. The interior of component 2.
  • the outer connecting portion 33 of the wire is the part directly welded and fixed to the outer conductive portion 4, and is actually the outermost end of the wire.
  • the outermost end is theoretically formed after the folding ring 21 is also formed. It can also be wrapped on the upper side, but from the perspective of technical realization, it is easy to understand that the outermost end is also likely to be a small part of the wire exposed between the outer edge of the folding ring 21 and the outer conductive part 4. Between the location. This part does not affect the overall realization and effect of the technical solution, because the entire wire still passes through the cone 22 and the folding ring 21.
  • an electronic device which uses the above-mentioned sound generating device.
  • the sound device can well meet the needs of thinning, when it is used in electronic equipment, more space can be reserved inside the electronic equipment to accommodate other components or systems. And so on, to provide more room for the performance design of audio, speakers, etc., especially smart consumer electronic terminals.

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

Abstract

一种发声装置及应用该发生装置的电子设备，包括壳体（5）以及分别与壳体（5）连接固定的磁路系统和振动系统，振动系统包括相互连接固定的音圈组件（1）以及振膜组件（2），音圈组件（1）通过电连接结构与外部电路导通，电连接结构包括设置在音圈组件（1）上的内导电部、设置在壳体（5）上的外导电部（4）以及电性连接所述内导电部和所述外导电部（4）的电连接部（3），电连接部（3）至少部分包裹在振膜组件（2）的内部。该发声装置有利于产品薄型化，并且能够在不影响性能的情况下改善断线问题。

Description

发声装置及电子设备 技术领域
本发明涉及一种发声装置，以及应用该发声装置的电子设备。
背景技术
扬声器作为一种电声转化器件，被广泛应用在各种各样的电子设备中，以实现基本的发声功能。近年来，随着智能音箱、智能家居产业的兴起，因为需要越来越多的空间装配智能控制系统等，消费类电子终端产品预留给扬声器的空间已经不再像传统的音箱那么充足，尤其是在高度方向，即相对于扬声器本身的体积而言，薄型化日益成为一个重要的发展趋势。
现有的常规扬声器设计中，音圈与导电端子一般通过引线连接，装配后，引线位于复合盆与定心支片之间，而为了避免振动过程中对引线的擦碰，需要在Z向上为引线预留出足够的空间，显然不利于达到产品薄型化的要求。
为了解决上述问题，现有技术中尝试将引线缝制在定心支片中，以降低Z向的高度需求，但采取这种做法也存在一定的弊端：对于大口径的音圈设计，定心支片的尺寸本身将大大减小，如果将引线缝制在定心支片中，定心支片的疲劳容易导致断线；而且对于一些产品，尤其是对于那些定心支片在顺性方面的作用远大于折环的产品，在定心支片上缝制引线会进一步加剧其对F 0、THD等声学性能的影响。
因此，有必要对现有的扬声器结构做进一步改进，以解决上述问题。
发明内容
本专利所要解决的技术问题是通过将电连接部包裹在振膜组件的内部，在不影响产品性能的基础上，改善断线的问题，并且利于产品薄型化。本发明提供的具体技术方案是：
一种发声装置，包括壳体以及分别与所述壳体连接固定的磁路系统和振动系统；所述振动系统包括相互连接固定的音圈组件以及振膜组件，所述音圈组件通过电连接结构与外部电路导通，其中，所述电连接结构包括设置在音圈组件上的内导电部、设置在壳体上的外导电部以及电性连接所述内导电部和所述外导电部的电连接部；所述电连接部至少部分包裹在所述振膜组件的内部。
优选的，所述音圈组件包括音圈骨架以及绕设在所述音圈骨架的外周面上的音圈；所述内导电部为设置在所述音圈骨架上的内焊盘。
优选的，所述外导电部为注塑成型于所述壳体上的外焊盘。
优选的，所述振膜组件包括注塑结合在一起的锥盆和折环，所述电连接部的至少部分注塑在所述锥盆和所述折环的内部空间中。
优选的，所述电连接部包括用以与所述内导电部电性连接的内连接部、用以与所述外导电部电性连接的外连接部以及连接所述内连接部和所述外连接部的中间部。
优选的，所述锥盆整体呈两端开口的锥形环状结构，所述内连接部自所述锥盆的底端开口处穿出焊接在所述音圈骨架的内焊盘上。
优选的，所述中间部自所述内连接部沿所述锥盆的锥面延伸至靠近所述壳体的外焊盘的位置，所述外连接部对应于所述折环的外边缘处，并与所述壳体的外焊盘焊接固定。
优选的，所述电连接部为主体被包裹在所述振膜组件内部的导线。
优选的，所述导线的中间部整体均位于所述振膜组件的内部；或者，所述导线的整体均位于所述振膜组件的内部。
优选的，所述导线的中间部包括嵌在所述锥盆内侧的第一部分，以及嵌在所述折环内侧的第二部分。
优选的，所述振膜组件与所述音圈骨架连接在一起；所述内焊盘设置 有两个，在所述音圈骨架的外周面上对称设置，并且靠近所述振膜组件与所述音圈骨架相连接的位置。
优选的，所述壳体上设置有与所述振膜组件的外边缘连接固定的连接面，在所述壳体的侧向上设置有两个凸出部，所述凸出部自所述连接面的外端水平向外侧延伸，所述外焊盘对应设置有两个，分别位于所述凸出部上。
优选的，所述磁路系统包括U铁、设置于所述U铁内的磁铁以及贴设在所述磁铁表面的导磁板；
或者，所述磁路系统包括T铁、套设在所述T铁的芯柱外侧的磁铁以及贴设在所述磁铁表面的导磁板。
本发明所提供的发声装置，利用现有技术中振动系统的基本结构，将用于导通内外部电路的电连接部至少部分包裹在振膜组件内部，一方面，本技术方案取代了传统设计中的引线位于复合盆与定心支片之间的设计，从而不再需要为电连接部在Z向上预留空间，有利于将应用该振动系统的发声装置做的更薄；另一方面，电连接部包裹在振膜组件内，其可以沿着振膜组件灵活顺线，相较于现有技术中在定心支片中缝制引线的做法而言，可以通过对顺线轨迹的调整，在不影响声学性能的基础上改善因定心支片疲劳而导致的断线问题，提升可靠性。
进一步地，本发明提供的发声装置，所述电连接部的至少部分注塑在所述锥盆和所述折环的内部空间中，借助振膜组件常规的注塑成型方法，将电连接部注塑在其内部，更容易实现，也便于操作，不需要额外引入其他的处理工艺。
根据本发明的另一构思，还提供一种电子设备，所述电子设备包括上述的发声装置。
优选的，所述电子设备为音箱或者音响。
本发明的电子设备，相比现有技术而言，可以留出更多的空间来容纳其他器件或者系统，并且声学性能可靠。
通过以下参照附图对本发明的示例性实施例的详细描述，本发明的其它特征及其优点将会变得清楚。
附图说明
被结合在说明书中并构成说明书的一部分的附图示出了本发明的实施例，并且连同其说明一起用于解释本发明的原理。
图1为本发明实施例发声装置的整体结构图；
图2为本发明实施例发声装置部分结构的俯视图；
图3为本发明实施例发声装置去除磁路后的剖视图。
附图标记说明：
1、音圈组件，11、音圈，12、音圈骨架，121、内焊盘，2、振膜组件，21、折环，22、锥盆，3、电连接部，31、内连接部，32、中间部、33、外连接部，4、外导电部，5、壳体，51、凸出部。
具体实施方式
现在将参照附图来详细描述本发明的各种示例性实施例。应注意到：除非另外具体说明，否则在这些实施例中阐述的部件和步骤的相对布置、数字表达式和数值不限制本发明的范围。
以下对至少一个示例性实施例的描述实际上仅仅是说明性的，决不作为对本发明及其应用或使用的任何限制。
对于相关领域普通技术人员已知的技术、方法和设备可能不作详细讨论，但在适当情况下，所述技术、方法和设备应当被视为说明书的一部分。
在这里示出和讨论的所有例子中，任何具体值应被解释为仅仅是示例性的，而不是作为限制。因此，示例性实施例的其它例子可以具有不同的值。
应注意到：相似的标号和字母在下面的附图中表示类似项，因此，一旦某一项在一个附图中被定义，则在随后的附图中不需要对其进行进一步讨论。
根据本发明的一个方面，本发明提供一种发声装置，包括壳体以及分别与壳体连接固定的磁路系统和振动系统，振动系统包括相互连接固定的音圈组件以及振膜组件，音圈组件通过电连接结构与外部电路导通，电连 接结构包括设置在音圈组件上的内导电部、设置在壳体上的外导电部以及电性连接内导电部和外导电部的电连接部，电连接部至少部分包裹在振膜组件的内部。
下面结合附图进一步阐述本发明。
实施例：
例如图1和图2、图3共同所示，本实施方式的发声装置，包括壳体5以及分别与壳体5连接固定的磁路系统(未明确示出)和振动系统，其中，振动系统包括相互连接在一起的音圈组件1和振膜组件2，其中，音圈组件1包括音圈11和音圈骨架12，音圈11绕设在音圈骨架12的外周面上，并且位于音圈骨架12的下端位置处。此处音圈骨架12可以为音圈11提供支撑作用，并且可以作为音圈11与振膜组件2连接起来的桥梁。具体实施时，考虑到减重以及散热等方面，可以在音圈骨架12上开设若干个透气孔(未示出)。上述内容为本领域技术人员所熟知，在此不再赘述。
振膜组件2包括注塑结合在一起的折环21和锥盆22，其中，折环21设置为包括弧形凸起的结构，其外侧通常固定在发声装置的壳体上，内侧与锥盆22结合，而锥盆22又与音圈骨架12结合在一起，这样便实现了音圈组件1与振膜组件2的整体连接。
众所周知的是，发声装置的正常工作，是在电磁场力的作用下往复运动发声，这就需要有相应的电连接结构将振动系统的内外部电信导通。在本实施方式中，具体是通过内导电部、电连接部3以及外导电部4共同实现的，具体来说，音圈骨架12上设置有内导电部，该内导电部可以是内焊盘121，内焊盘121通过电连接部3与外导电部4电性连接，外部的电流信号通过上述途径输送到音圈11。
具体实施时，内焊盘121优选为设置两个，并且在音圈骨架12的外周向上对称设置，在此基础上，电连接部3和外导电部4也对应优选设置为两个。采用两个对称设置的导电结构，在一定程度上可以防止因结构不对称而造成的偏振。
在本实施方式中，电连接部3具体选用导线(锦丝线)，其包括用以 与内焊盘121电性连接的内连接部31、用以与外导电部4电性连接的外连接部33以及连接内连接部31和外连接部33的中间部32。当然，对于导线而言，其是一体成型出来的线体，此处为了更清楚的阐述本发明而根据不同部分的不同作用进行区分。在本技术方案中，考虑到现有技术中，当导线设置在复合盆与定心支片之间时，需要在产品的Z向额外预留出一定的空间，避免振动时对导线的擦碰，另一方面考虑到将导线编织在定心支片中时会影响到性能，因此本申请将导线的至少部分包裹在振膜组件2的内部。
当然，由于锥盆22和折环21均可以通过注塑成型，因此本实施方式中，电连接部33优选为与锥盆22和折环21注塑为一体，即电连接部3包括注塑在振膜组件2内部的部分。下面具体说明时以此为例。
通过附图1和附图2可以看到，锥盆22整体呈两端开口的锥形环状结构，两根导线的内连接部31可以自锥盆22的底端开口处穿出焊接在音圈骨架12的内焊盘121上。当然，为了焊接更为便利，内焊盘121可以设置在靠近音圈骨架12的与锥盆22相连接的位置处，这样当导线的内连接部31自底端开口穿出后很自然的和内焊盘121焊接即可。导线与内焊盘121焊接后，继续自内连接部31沿锥盆22的锥面延伸，一直延伸到靠近发声装置的外导电部4的位置，这部分定义为中间部32，而外连接部33是对应于内连接部31而言，是用于与外导电部4电性连接的那部分导线。优选为外连接部33对应于折环21的外边缘处，与外导电部4焊接固定。
这里需要说明的是，此处所述的锥盆22表示的是与折环21共同形成振膜组件的锥形结构，在具体成型过程中，锥盆22并不是一次成型的，而是先成型一部分结构，相关部分在成型方法的部分会做详细说明。
也就是说，在本技术方案中，作为电连接部3的导线，其至少部分是注塑在锥盆22和折环21的内部的，该部分被锥盆22和折环21整体所包裹。除用于与内焊盘121和外导电部4焊接的那一小部分导线外，整个导线的中间部分可整体的注塑在振膜组件2的内部，当然也不排除导线全部注塑在振膜组件2的内部的方式，具体可以根据需要灵活设计。
对导线的中间部32而言，其被锥盆22包裹在内侧的那部分定义为第 一部分，被折环21包裹在内侧的那部分定义为第二部分。另外，由于本实施方式中，锥盆22和折环21是注塑结合的，且导线与二者注塑为一体，因此锥盆22的材质优选为纸，折环的材质优选为橡胶，例如硅橡胶等。当然此处只是进行示例性说明，并不用于限定本发明，还可以是其他的材料，并不影响本技术方案的实施。
对于外导电部4而言，在本实施方式中，其具体可以是注塑在壳体5上的两个外焊盘，如图1和图2共同所示，壳体5上设置有与振膜组件2的外边缘(具体是折环21的外边缘)连接固定的连接面，在壳体5的侧向上设置有两个凸出部51，凸出部51自该连接面的外端水平向外侧延伸，这样就在壳体5的外侧形成了两个可以容纳外焊盘的结构。由于凸出部51自壳体5与折环21的连接面水平延伸而成，因此在Z向上并没有增加产品的高度。
本实施方式所提供的发声装置，由于将用于导通内外部电路的导线包裹在振膜组件内部，一方面，不再需要为电连接部在Z向上预留空间，有利于将应用该振动系统的发声装置做的更薄；另一方面，相较于现有技术中在定心支片中缝制引线的做法而言，可以通过对顺线轨迹的调整，在不影响声学性能的基础上改善因定心支片疲劳而导致的断线问题。
对于磁路系统而言，既可以采用内磁路结构，也可以采用外磁路结构。具体的，当采用内磁路结构时，磁路系统可以包括U铁、设置于U铁内的磁铁以及贴设在磁铁表面的导磁板；当采用外磁路结构时，磁路系统可以包括T铁、套设在T铁的芯柱外侧的磁铁以及贴设在磁铁表面的导磁板。
以上对本实施方式的发声装置的结构进行了阐述，下面将以电连接部3注塑在振膜组件2的内部为例，对此种发声装置，尤其是振动系统部分的成型方法进行说明，其主要包括以下几个步骤：
S1：在该步骤中，首先注塑成型部分厚度的锥盆。此处所述的部分厚度，可以是1/2厚度，也可以是相较于整体的其他比例的厚度，此时成型的锥盆22严格的说并不是真正的锥盆，只是锥盆的一部分，但为了方便阐述，此处的锥盆22即用来表示与折环21连接的锥形结构。
S2、提供电连接部3，所述电连接部3为导线；导线自锥盆22的底端 开口处伸出并沿已成型的锥盆22的外锥面顺线，顺至外导电部4的位置；在这一步骤中，首先将导线从锥盆22的开口内侧开始顺线，穿过底端开口后，直接与位于音圈骨架12上的内焊盘121焊接固定，焊接后，导线继续沿着锥盆22的锥面顺线，顺至锥盆22的最顶端时，继续向外导电部4的方向顺线，最终顺至折环21的外边缘处附近，并与外导电部4焊接固定。
S3、注塑成型另一部分厚度的锥盆22，将部分导线包裹在完整的锥盆的内部，并注塑成型为一体。在这一步骤中，锥盆22与部分导线注塑为一体，该部分导线主要是沿锥盆22的锥面顺线的部分。成型为一体后，该部分导线相当于是嵌设在锥盆22的内侧。
S4、注塑成型折环21，折环21与锥盆22注塑结合为振膜组件2，且成型后导线同时与锥盆22、折环21整体注塑在一起。同样的，折环21包裹的导线主要是S2顺线步骤中未在S3中被锥盆22包裹的那部分导线，通过S4这一步骤，可以实现将导线的整个中间部都嵌设在振膜组件2的内部。
此处需要说明的是，在具体实施时，导线的外连接部33作为直接与外导电部4焊接固定的部分，实际是导线的最外端，该最外端在折环21也成型后理论上也可以将其包裹，但从技术实现的角度而言，很容易理解的是，该最外端也很有可能作为很小的一部分导线裸露在折环21的外边缘与外导电部4之间的位置。该部分并不能影响本技术方案的整体实现和效果，因为导线的整体还是穿过锥盆22与折环21的。另外需要说明的是，导线在具体顺线的过程中，其总的轨迹是沿锥盆22的锥面以及沿靠近外导电部4的位置(实际上就是折环21所覆盖的区域)顺线，但每一段的具体顺线轨迹、是否有弯曲段等都不受限制，可根据实际需求灵活选择。
根据本发明的另一个构思，还提供一种电子设备，该电子设备应用上述的发声装置。如前所述，由于发声装置可以很好地满足薄型化的需要，因此当其应用在电子设备中时，电子设备的内部可以预留出更多的空间来用以容放其他的部件或者系统等，为音响、音箱等，尤其是智能消费电子终端的性能设计提供更大的余地。
虽然已经通过例子对本发明的一些特定实施例进行了详细说明，但是 本领域的技术人员应该理解，以上例子仅是为了进行说明，而不是为了限制本发明的范围。本领域的技术人员应该理解，可在不脱离本发明的范围和精神的情况下，对以上实施例进行修改。本发明的范围由所附权利要求来限定。

Claims (15)

  1. 一种发声装置，包括壳体以及分别与所述壳体连接固定的磁路系统和振动系统；所述振动系统包括相互连接固定的音圈组件以及振膜组件，所述音圈组件通过电连接结构与外部电路导通，其特征在于：所述电连接结构包括设置在音圈组件上的内导电部、设置在壳体上的外导电部以及电性连接所述内导电部和所述外导电部的电连接部；所述电连接部至少部分包裹在所述振膜组件的内部。
  2. 根据权利要求1所述的发声装置，其特征在于：所述音圈组件包括音圈骨架以及绕设在所述音圈骨架的外周面上的音圈；所述内导电部为设置在所述音圈骨架上的内焊盘。
  3. 根据权利要求1所述的发声装置，其特征在于：所述外导电部为注塑成型于所述壳体上的外焊盘。
  4. 根据权利要求1所述的发声装置，其特征在于：所述振膜组件包括注塑结合在一起的锥盆和折环，所述电连接部的至少部分注塑在所述锥盆和所述折环的内部空间中。
  5. 根据权利要求4所述的发声装置，其特征在于：所述电连接部包括用以与所述内导电部电性连接的内连接部、用以与所述外导电部电性连接的外连接部以及连接所述内连接部和所述外连接部的中间部。
  6. 根据权利要求5所述的发声装置，其特征在于：所述锥盆整体呈两端开口的锥形环状结构，所述内连接部自所述锥盆的底端开口处穿出焊接在所述音圈骨架的内焊盘上。
  7. 根据权利要求6所述的发声装置，其特征在于：所述中间部自所述内连 接部沿所述锥盆的锥面延伸至靠近所述壳体的外焊盘的位置，所述外连接部对应于所述折环的外边缘处，并与所述壳体的外焊盘焊接固定。
  8. 根据权利要求4所述的发声装置，其特征在于：所述电连接部为主体被包裹在所述振膜组件内部的导线。
  9. 根据权利要求8所述的发声装置，其特征在于：所述导线的中间部整体均位于所述振膜组件的内部；或者，所述导线的整体均位于所述振膜组件的内部。
  10. 根据权利要求9所述的发声装置，其特征在于：所述导线的中间部包括嵌在所述锥盆内侧的第一部分，以及嵌在所述折环内侧的第二部分。
  11. 根据权利要求2所述的发声装置，其特征在于：所述振膜组件与所述音圈骨架连接在一起；所述内焊盘设置有两个，在所述音圈骨架的外周面上对称设置，并且靠近所述振膜组件与所述音圈骨架相连接的位置。
  12. 根据权利要求3所述的发声装置，其特征在于：所述壳体上设置有与所述振膜组件的外边缘连接固定的连接面，在所述壳体的侧向上设置有两个凸出部，所述凸出部自所述连接面的外端水平向外侧延伸，所述外焊盘对应设置有两个，分别位于所述凸出部上。
  13. 根据权利要求1-12任一项所述的发声装置，其特征在于：所述磁路系统包括U铁、设置于所述U铁内的磁铁以及贴设在所述磁铁表面的导磁板；或者，所述磁路系统包括T铁、套设在所述T铁的芯柱外侧的磁铁以及贴设在所述磁铁表面的导磁板。
  14. 一种电子设备，其特征在于，包括权利要求1-13任一项所述的发声装置。
  15. 根据权利要求14所述的电子设备，其特征在于：所述电子设备为音箱或者音响。
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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020175021A1 (en) * 2001-05-23 2002-11-28 Star Micronics Co., Ltd. Speaker
CN204291373U (zh) * 2014-12-23 2015-04-22 歌尔声学股份有限公司 微型扬声器
CN205610932U (zh) * 2016-04-27 2016-09-28 歌尔股份有限公司 扬声器
CN205793301U (zh) * 2016-05-30 2016-12-07 歌尔股份有限公司 扬声器
CN205987343U (zh) * 2016-07-26 2017-02-22 广东佳禾声学科技有限公司 扬声器

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002152896A (ja) * 2000-11-06 2002-05-24 Citizen Electronics Co Ltd マイクロスピーカ
CN201611947U (zh) * 2010-03-20 2010-10-20 李景海 强制音效低音扬声器
CN103152674A (zh) * 2013-01-06 2013-06-12 美特科技(苏州)有限公司 一种音圈骨架及其制做方法
CN205320271U (zh) * 2015-12-29 2016-06-15 常州金坛英杰电子有限公司 微型发声器
CN205754840U (zh) * 2016-05-18 2016-11-30 歌尔股份有限公司 扬声器
CN105828257A (zh) * 2016-05-18 2016-08-03 歌尔声学股份有限公司 扬声器
CN106060723B (zh) * 2016-07-19 2021-05-14 歌尔股份有限公司 扬声器振膜及其成型方法
CN208956320U (zh) * 2018-12-26 2019-06-07 共达电声股份有限公司 一种大振幅微型扬声器

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020175021A1 (en) * 2001-05-23 2002-11-28 Star Micronics Co., Ltd. Speaker
CN204291373U (zh) * 2014-12-23 2015-04-22 歌尔声学股份有限公司 微型扬声器
CN205610932U (zh) * 2016-04-27 2016-09-28 歌尔股份有限公司 扬声器
CN205793301U (zh) * 2016-05-30 2016-12-07 歌尔股份有限公司 扬声器
CN205987343U (zh) * 2016-07-26 2017-02-22 广东佳禾声学科技有限公司 扬声器

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