WO2021088915A1 - 一种发声装置以及电子终端 - Google Patents

一种发声装置以及电子终端 Download PDF

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Publication number
WO2021088915A1
WO2021088915A1 PCT/CN2020/126700 CN2020126700W WO2021088915A1 WO 2021088915 A1 WO2021088915 A1 WO 2021088915A1 CN 2020126700 W CN2020126700 W CN 2020126700W WO 2021088915 A1 WO2021088915 A1 WO 2021088915A1
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WO
WIPO (PCT)
Prior art keywords
voice coil
connecting portion
housing
conductive member
sounding device
Prior art date
Application number
PCT/CN2020/126700
Other languages
English (en)
French (fr)
Inventor
杨健斌
强寿松
刘春发
Original Assignee
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
Priority to US17/773,464 priority Critical patent/US11956613B2/en
Publication of WO2021088915A1 publication Critical patent/WO2021088915A1/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
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/06—Arranging circuit leads; Relieving strain on circuit leads
    • 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
    • H04R9/04—Construction, mounting, or centering of coil
    • 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
    • H04R9/04—Construction, mounting, or centering of coil
    • H04R9/041—Centering
    • H04R9/043—Inner suspension or damper, e.g. spider
    • 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
    • H04R9/027—Air gaps using a magnetic fluid

Definitions

  • the present invention relates to the technical field of electro-acoustic conversion, in particular to a sound generating device.
  • the centering support piece is one of the basic components of the sound device. Its main function is to ensure the correct position of the voice coil in the magnetic gap. When the voice coil is under force, the vibration system only reciprocates in the axial direction and provides the vibration system operation. Elastic force during reciprocating motion.
  • traditional sound generating devices such as large horn devices
  • the centering support piece is elastic.
  • the structure of the traditional centering support piece makes the big horn vibrate along it.
  • the height in the direction increases; in addition, the traditional sounding device requires additional brocade wire to realize the electrical connection between the voice coil and the external circuit, and the brocade wire needs to occupy the internal space of the sounding device during the alignment process.
  • the present invention provides a new type of sound generating device.
  • An object of the present invention is to provide a sound generating device.
  • a sound generating device includes:
  • a housing the housing has an accommodating space, and a magnetic circuit system is installed in the accommodating space;
  • a voice coil the voice coil includes a voice coil body and a skeleton, the skeleton is in the shape of a round tube, the voice coil body is wound outside the skeleton; the bottom end of the voice coil is suspended on the magnetic circuit system In the magnetic gap;
  • a conductive member having a first connecting portion fixed to the voice coil, a second connecting portion fixed to the housing, and elasticity between the first connecting portion and the second connecting portion Pieces
  • the conductive element is coupled to the root region of the voice coil body, and the magnetic circuit system is provided with a relief portion corresponding to the conductive element; the voice coil is provided with an internal conduction structure, and the housing is provided with An outer conduction structure connected to an external circuit, after the first connecting portion of the conductive member is electrically connected to the inner conduction structure, it penetrates and extends from the avoiding portion of the magnetic circuit system to the housing, And it is electrically connected to the external conduction structure.
  • the conductive member is connected to a side surface of the voice coil body close to the bottom end surface thereof.
  • the internal conduction structure is a pad fixed on the side surface of the voice coil body close to the bottom end surface thereof, and the first connecting portion is welded and fixed to the pad;
  • the enameled wire is welded and fixed to the pad.
  • the second connecting portion is in the shape of a hook
  • a fixing post is provided on the housing
  • the second connecting portion is sleeved on the fixing post.
  • the conductive element is integrally wound by a metal wire.
  • the metal wire is copper wire, iron wire, steel wire or alloy wire.
  • the outer conduction structure is provided at a position close to the housing fixing column; the outer conduction structure is a solder lug injection molded on the housing;
  • the second connecting portion After the second connecting portion is fixed with the fixing column, it is welded and fixed with the welding lug.
  • solder lug is exposed on the outer surface of the housing.
  • the elastic member has a planar structure.
  • the elastic member diffuses outward in the direction of the first connecting portion to the second connecting portion, the buffer section forms a diffusion angle, and the diffusion angle is not less than 10°.
  • the conductive member is a two-piece split structure symmetrically arranged on both sides of the voice coil body; or, the conductive member is three or four pieces evenly distributed in the circumferential direction of the voice coil body. Fragment structure.
  • the magnetic circuit system includes a basin-shaped U iron, and a magnet is provided in the basin cavity of the U iron;
  • the avoiding part is a notch provided on the U iron.
  • the number of corresponding notches provided on the U iron is the same as the number of conductive members provided on the voice coil body, and the notch angle ranges from 20° to 40°
  • the resonance frequency F0 of the sound emitting device is 50-300 Hz.
  • the sound emitting device is a circular sound emitting device or a square sound emitting device.
  • the sound emitting device is a large bass or midrange sound emitting device.
  • an electronic terminal including the above-mentioned sound emitting device.
  • the electronic terminal is a car audio or sound box.
  • the present invention provides a sounding device, wherein the conductive member of the sounding device is arranged at the root area of the voice coil body.
  • the centering support piece is arranged on the voice coil skeleton. It can better provide the axial compliance of the sounding device, reduce radial deviation and swing vibration; at the same time, install the conductive element on the root area of the voice coil body, eliminating the space required by the traditional centering support piece, and can The height of the sound device is smaller;
  • the present invention provides a sound generating device, wherein the conductive member has an elastic member, wherein the elastic member is bent and extends from the first connecting part to the second connecting part, and preferably can form a plane structure; compared with the prior art, the present invention can ensure the product quality
  • the flatness reduces the height of the sounding device along its vibration direction, reduces the volume of the sounding device, and realizes the lightness and miniaturization of the sounding device.
  • the present invention provides a sound generating device, wherein on the one hand, a conductive member can support and fix the position of the voice coil; on the other hand, the conductive member realizes the voice coil and the external circuit through an inner conduction structure and an outer conduction structure Compared with the prior art, the present invention reduces the use of brocade thread and reduces the height of the sound device in its vibration direction.
  • Figure 1 is a schematic diagram of the structure of the sound generating device of the present invention.
  • FIG. 2 is a schematic diagram of the structure of the U iron of the present invention.
  • Fig. 3 is a height comparison diagram of the sound generating device of the present invention and the existing sound generating device.
  • Fig. 4 shows the impedance curves of the sound generating device of the present invention and the sound generating device using a conventional centering support piece.
  • Fig. 5 is a distortion curve diagram of the sound generating device of the present invention and the sound generating device using the traditional centering support piece in the prior art.
  • a sound generating device includes:
  • a housing the housing has an accommodating space, and a magnetic circuit system is installed in the accommodating space;
  • a voice coil the voice coil includes a voice coil body and a skeleton, the voice coil body is wound outside the skeleton; the bottom end of the voice coil is suspended in the magnetic gap of the magnetic circuit system;
  • a conductive member having a first connecting portion fixed to the voice coil, a second connecting portion fixed to the housing, and elasticity between the first connecting portion and the second connecting portion Pieces
  • the conductive element is coupled to the root region of the voice coil body, and the magnetic circuit system is provided with a relief portion corresponding to the conductive element; the voice coil is provided with an internal conduction structure, and the housing is provided with An outer conduction structure connected to an external circuit, after the first connecting portion of the conductive member is electrically connected to the inner conduction structure, it penetrates and extends from the avoiding portion of the magnetic circuit system to the housing, And it is electrically connected to the external conduction structure.
  • the present invention provides a sounding device, wherein the conductive element of the sounding device is arranged at the root area of the voice coil body. Compared with the prior art where the centering support piece is arranged on the voice coil skeleton, the present invention can provide better The axial compliance of the sounding device reduces radial deviation and rocking vibration; at the same time, the conductive member is installed in the root area of the voice coil body, which saves the space required by the traditional centering brace, and can reduce the sounding device;
  • the present invention provides a sound generating device, wherein on the one hand, a conductive member can support and fix the position of the voice coil; on the other hand, the conductive member realizes the voice coil and the external circuit through an inner conduction structure and an outer conduction structure Compared with the prior art, the present invention reduces the use of brocade thread and reduces the height of the sound device in its vibration direction.
  • FIG. 1 is a schematic diagram of the structure of the sound generating device of the present invention.
  • the sound generating device 200 includes a housing 100, and the housing 100 has an accommodating space, and a magnetic circuit system is installed in the accommodating space; in this example, the magnetic circuit system includes a U iron.
  • the sounding device includes a voice coil, the voice coil includes a voice coil body and a skeleton, the skeleton is in the shape of a circular tube, the voice coil body is wound outside the skeleton; the bottom end of the voice coil is suspended In the magnetic gap of the magnetic circuit system;
  • the sound generating device includes a conductive member 101 having a first connecting portion 1011 fixed to the voice coil, a second connecting portion 1013 fixed to the housing, and a conductive member located at the first connecting portion 1011 and 1011.
  • the elastic member 1012 between the second connecting portions 1013; wherein, as shown in FIG. 1, the elastic member 1012 bends and extends from the first connecting portion 1011 to the second connecting portion 1013 along the S shape, and the elastic
  • the element has a planar structure. Compared with the elastic centering support piece in the prior art, the special structure design of the conductive element in this example can reduce the height of the sound device in its vibration direction.
  • the conductive member 101 is combined with the root region of the voice coil body, and the magnetic circuit system is provided with an escape portion corresponding to the conductive member; the voice coil is provided with an internal conduction structure, so The housing is provided with an external conduction structure which conducts with an external circuit.
  • the first connecting portion 1011 of the conductive member 101 is connected to the side surface of the voice coil body close to the bottom end surface thereof; the second connecting portion 1013 is connected to the housing 100; for example, the first connecting portion 1011 passes through the inner
  • the conductive structure 103 is fixed on the side surface of the voice coil body close to the bottom end surface thereof, wherein the inner conductive structure 103 is welded to the enameled wire of the voice coil body, which realizes the electrical connection between the first connecting portion and the voice coil body.
  • the housing 100 is provided with a fixed post 102, and the second connecting portion 1013 is sleeved on the fixed post 102; for example, the second connecting portion 1013 is in the shape of a hook, and the second connecting portion 1013 is sleeved on On the fixed post 102.
  • An outer conductive structure 104 is provided near the housing fixing column 102; the second connecting portion 1013 is connected to the outer conductive structure, and the outer conductive structure is configured to be connected to an external circuit, that is, the second connecting portion 1013 is configured to be connected to an external circuit.
  • the second connecting portion 1013 is electrically connected to an external circuit.
  • the conductive member 101 realizes the electrical communication between the voice coil and the external circuit through the inner conductive structure 103 and the outer conductive structure 104; compared with the prior art, the present invention reduces the use of silk thread and reduces the vibration of the sound device.
  • the height of the direction In this example, as shown in FIG. 3, the height of the existing sounding device 300 in the vibration direction is compared with that of the sounding device 200 of the present invention; as shown in FIG.
  • the conductive member 101 is arranged at the root of the voice coil body Area, and after the first connecting portion of the conductive element is electrically connected to the inner conductive structure, it extends from the avoiding portion of the magnetic circuit system to the housing, and is connected to the outer conductive structure
  • the electrical connection is achieved through the electrical connection between the voice coil and the external circuit; the height of the sounding device 200 of the present invention in the vibration direction is significantly lower than that of the existing sounding device 300.
  • the height range of the sounding device 200 in the vibration direction of the present invention is 15-20 mm, and preferably, the height of the sounding device 200 in the vibration direction is 17-19 mm. This example makes the sound device lighter and smaller.
  • the inner conducting structure 103 is a pad fixed on the side surface of the voice coil body close to its bottom end surface.
  • the pad has a bearing portion, and the bearing portion is configured to To fix the first connecting portion 1011, the first connecting portion 1011 is soldered to the pad.
  • the carrying portion has a bent structure, and this example facilitates the fixation of the first connecting portion 1011 and the pad.
  • the outer conduction structure 104 is arranged at a position close to the fixed column of the housing; the outer conduction structure 104 is a solder lug injection molded on the housing; wherein the solder lug is exposed on the On the outer surface of the housing.
  • the solder lug is exposed on the On the outer surface of the housing.
  • the magnetic circuit system is provided with an avoiding portion corresponding to the conductive member 101; specifically, as shown in FIG. 2, the magnetic circuit system includes a basin-shaped U iron 105, and the U iron 105 A magnet is provided in the pelvic cavity; in this example, the avoiding portion is a notch 1051 provided on the U iron.
  • the conductive member 101 is configured to be able to pass through the notch 1051 to be connected to the side surface of the voice coil body close to the bottom end surface thereof. That is, the notch 1051 opened on the U iron 105 forms an escape space, so that the conductive member 101 can generate vibration along the vibration direction of the sound emitting device.
  • the range of the notch angle is 20°-40°, and preferably, the range of the notch angle is 30°. Among them, within this notch angle range, the vibration space of the conductive member can be ensured, so that the vibration frequency of the sounding device and the acoustic performance of the sounding device are not affected.
  • the conductive member is a two-piece split structure symmetrically arranged on both sides of the voice coil body; or, the conductive member is three or more pieces evenly distributed in the circumferential direction of the voice coil body.
  • the conductive elements are arranged in a symmetrical manner or arranged in an array manner, both of which can play a good supporting role in fixing the position of the voice coil.
  • the number of corresponding notches provided on the U iron is the same as the number of conductive elements provided on the voice coil body.
  • the conductive element is a four-piece split structure evenly distributed in the circumferential direction of the voice coil body, and the U iron is provided with four notches corresponding to it.
  • the conductive member 101 is integrally wound by a metal wire, where the metal wire can be any one of copper wire, iron wire, steel wire, and alloy wire.
  • the conductive parts are integrally wound by metal wires, so that the diaphragm in the sound device can provide better compliance when vibrating under large displacements; at the same time, the conductive parts are made of metal materials, so that they are less affected by high temperature and high humidity environments. , Excellent fatigue resistance, also enables the sound device to work in harsh environments.
  • the elastic member 1012 spreads outward along the first connecting portion 1011 toward the second connecting portion 1013, the elastic member 1012 forms a diffusion angle, and the diffusion angle is not less than 10°.
  • the mechanical stiffness of the conductive element ranges from 0.2 to 2 N/mm, preferably, the mechanical stiffness of the conductive element is 0.56 N/mm. In this range of mechanical stiffness, the performance of the conductive parts is better, and at the same time it plays a good role in supporting the fixation of the voice coil position.
  • curve b represents the impedance curve of the prior art sounding device using traditional centering braces
  • curve c represents the impedance curve of the sounding device of the present invention.
  • the resonance frequency F0 of the sound generating device in the embodiment of the present invention is 50-300 Hz, and preferably, the resonance frequency F0 is 170 Hz.
  • the resonance frequency F0 of the sound device is 195 Hz. Therefore, when the conductive member is applied to the sound emitting device, the sound emitting device has a good low-frequency response and intermediate frequency response, and the acoustic performance of the sound emitting device is improved; wherein the sound emitting device can be a large bass sound emitting device or a midrange sound emitting device, which can be The circular sound emitting device shown in the above embodiment may also be a square sound emitting device.
  • the conductive element is applied to the sound generating device, which can reduce the total harmonic distortion THD of the sound generating device and improve the acoustic performance of the sound generating device.
  • the abscissa represents the vibration frequency
  • the ordinate represents the total harmonic distortion THD
  • curve b represents the traditional centering piece applied to the sounding device, the total harmonic distortion THD of the sounding device
  • curve c It represents the application of the conductive member of the present invention to the sound generating device, and the total harmonic distortion THD of the sound generating device.
  • the total harmonic distortion THD of the sound generating device of the present invention is less than 10%; specifically, when the frequency is 100 Hz, the total harmonic distortion THD of the sound generating device is less than 10%; when the frequency is 200 Hz , The total harmonic distortion THD of the sounding device is less than 2.5%; when the frequency is 300Hz, the total harmonic distortion THD of the sounding device is less than 2%;
  • the total harmonic distortion THD of the traditional sounding device is less than 16%; specifically, when the frequency is 100 Hz, the total harmonic distortion THD of the sounding device is less than 16%; When the frequency is 200 Hz, the total harmonic distortion THD of the sounding device is less than 5%; when the frequency is 300 Hz, the total harmonic distortion THD of the sounding device is less than 2.5%;
  • the sound device in this example has good acoustic performance.
  • an electronic terminal wherein the electronic terminal includes the sound emitting device of the present invention.
  • the electronic terminal may be a car stereo or a speaker.

Abstract

本发明公开了一种发声装置。其中包括：壳体，壳体具有容置空间，容置空间内安装有磁路系统；音圈，音圈包括音圈本体和骨架；导电件，导电件具有与音圈固定的第一连接部、与壳体固定的第二连接部以及位于所述第一连接部和所述第二连接部之间的弹性件；所述导电件结合在所述音圈本体上，磁路系统上对应所述导电件设置有避让部；所述音圈上设置有内导通结构，所述壳体上设置有与外部电路导通的外导通结构，所述导电件的第一连接部与所述内导通结构电性连接后，自所述磁路系统的避让部穿出延伸至所述壳体，并且与所述外导通结构电性连接。本发明发声装置的导电件设置在音圈本体的根部区域，使得发声装置具有良好的轴向顺性，减少径向偏移及摇摆振动。

Description

一种发声装置以及电子终端 技术领域
本发明涉及电声转换技术领域，具体地涉及一种发声装置。
背景技术
定心支片是发声装置的基本构件之一，它的作用主要是确保音圈在磁间隙中的正确位置，保持音圈在受力时，振动系统只沿轴向往复运动和提供振动系统作往复运动时的弹力。
目前传统的发声装置，例如在大喇叭装置中，通常在音圈骨架上固定设定心支片，而且定心支片呈弹波状，传统的定心支片的结构使得在大喇叭沿其振动方向上的高度增加；另外传统的发声装置需要额外设置锦丝线实现音圈与外部电路的电连接，其中锦丝线在顺线过程中需要占据发声装置的内部空间。
因此为了解决上述的任意技术问题，本发明提供一种新型的发声装置。
发明内容
本发明的一个目的是提供一种发声装置。
根据本发明的第一个方面，提供一种发声装置。所述发声装置包括：
壳体，所述壳体具有容置空间，所述容置空间内安装有磁路系统；
音圈，所述音圈包括音圈本体和骨架，所述骨架为圆管形，所述音圈本体绕制在所述骨架外；所述音圈的底端悬置在所述磁路系统的磁间隙中；
导电件，所述导电件具有与所述音圈固定的第一连接部、与所述壳体固定的第二连接部以及位于所述第一连接部和所述第二连接部之间的弹性件；
所述导电件结合在所述音圈本体的根部区域，所述磁路系统上对应所述导电件设置有避让部；所述音圈上设置有内导通结构，所述壳体上设置有与外部电路导通的外导通结构，所述导电件的第一连接部与所述内导通结构电性连接后，自所述磁路系统的避让部穿出延伸至所述壳体，并且与 所述外导通结构电性连接。
可选地，所述导电件连接于所述音圈本体的靠近其底端面的侧面。
可选地，所述内导通结构为固定在所述音圈本体的靠近其底端面的侧面上的焊盘，所述第一连接部与所述焊盘焊接固定；所述音圈本体的漆包线与所述焊盘焊接固定。
可选地，所述第二连接部呈弯钩形状，所述壳体上设置有固定柱，所述第二连接部套设在所述固定柱上。
可选地，所述导电件由金属线一体绕制而成。
可选地，所述金属线为铜线、铁线、钢线或者合金线。
可选地，在靠近所述壳体固定柱的位置设置所述外导通结构；所述外导通结构为注塑在所述壳体上的焊片；
所述第二连接部与与所述固定柱固定在一起后，与所述焊片焊接固定。
可选地，所述焊片裸露在所述壳体的外表面上。
可选地，所述弹性件呈平面结构。
可选地，所述弹性件沿第一连接部向第二连接部方向向外扩散，所述缓冲段形成扩散角度，所述扩散角度不小于10°。
可选地，所述导电件为对称设置在所述音圈本体的两侧的两片分体结构；或者，所述导电件为在所述音圈本体的周向上均匀分布的三片或四片分体结构。
可选地，所述磁路系统包括盆型的U铁，所述U铁的盆腔内设有磁铁；
所述避让部为设置在所述U铁上的缺口。
可选地，所述U铁上对应设置缺口的数量与在所述音圈本体上设置导电件的数量一致，所述缺口角度的范围为20°～40°
可选地，所述发声装置的谐振频率F0为50～300Hz。
可选地，所述发声装置为圆形发声装置或方形发声装置。
可选地，所述发声装置为大型的低音或者中音发声装置。
根据本发明另一方面，提供一种电子终端，包括上述所述的发声装置。
可选地，所述电子终端为车载音响或者音箱。
本发明的有益效果：本发明提供一种发声装置，其中发声装置导电件设置在音圈本体的根部区域，相对于现有技术中将定心支片设置在音圈骨架上相比，本发明能够更好的提供发声装置的轴向顺性，减少径向偏移及摇摆振动；同时将导电件安装在音圈本体的根部区域，省去了传统的定心支片需要的空间，可以将发声装置做到高度尺寸更小；
本发明提供一种发声装置，其中导电件具有弹性件，其中弹性件从第一连接部向第二连接部弯曲延伸，优选的可形成平面结构；相对于现有技术，本发明可保证产品的平面度，降低了发声装置沿其振动方向上的高度，减少了发声装置的体积，实现了发声装置的轻小化。
本发明提供一种发声装置，其中导电件一方面能够对音圈的位置起到支持和固定的作用；另一方面所述导电件通过内导通结构和外导通结构实现音圈与外部电路的电连通；本发明与现有技术相比，减少了锦丝线的使用，降低了发声装置在其振动方向的高度。
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所示为本发明发声装置的结构示意图。
图2所示为本发明U铁的结构示意图。
图3所示为本发明发声装置的高度与现有发声装置的高度对比图。
图4所示为本发明发声装置与采用传统的定心支片的发声装置的阻抗曲线图。
图5所示为本发明发声装置与现有技术中采用传统定心支片的发声装置的失真曲线图。
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。
根据本发明的一个实施例，提供一种发声装置。所述发声装置包括：
壳体，所述壳体具有容置空间，所述容置空间内安装有磁路系统；
音圈，所述音圈包括音圈本体和骨架，所述音圈本体绕制在所述骨架外；所述音圈的底端悬置在所述磁路系统的磁间隙中；
导电件，所述导电件具有与所述音圈固定的第一连接部、与所述壳体固定的第二连接部以及位于所述第一连接部和所述第二连接部之间的弹性件；
所述导电件结合在所述音圈本体的根部区域，所述磁路系统上对应所述导电件设置有避让部；所述音圈上设置有内导通结构，所述壳体上设置有与外部电路导通的外导通结构，所述导电件的第一连接部与所述内导通结构电性连接后，自所述磁路系统的避让部穿出延伸至所述壳体，并且与所述外导通结构电性连接。
本发明提供一种发声装置，其中发声装置的导电件设置在音圈本体的根部区域，相对于现有技术中将定心支片设置在音圈骨架上相比，本发明能够更好的提供发声装置的轴向顺性，减少径向偏移及摇摆振动；同时将导电件安装在音圈本体的根部区域，省去了传统的定心支片需要的空间， 能够降低发声装置；
本发明提供一种发声装置，其中导电件一方面能够对音圈的位置起到支持和固定的作用；另一方面所述导电件通过内导通结构和外导通结构实现音圈与外部电路的电连通；本发明与现有技术相比，减少了锦丝线的使用，降低了发声装置在其振动方向的高度。
在一个例子中，如图1所示为本发明发声装置的结构示意图。
其中发声装置200包括壳体100，所述壳体100具有容置空间，所述容置空间内安装有磁路系统；本例子中所述磁路系统包括U铁。
所述发声装置包括音圈，所述音圈包括音圈本体和骨架，所述骨架为圆管形，所述音圈本体绕制在所述骨架外；所述音圈的底端悬置在所述磁路系统的磁间隙中；
所述发声装置包括导电件101，所述导电件101具有与所述音圈固定的第一连接部1011、与所述壳体固定的第二连接部1013以及位于所述第一连接部1011和所述第二连接部1013之间的弹性件1012；其中，如图1所示，所述弹性件1012沿S型从第一连接部1011向所述第二连接部1013弯曲延伸，所述弹性件呈平面结构，相对于现有技术中弹波状的定心支片，本例子中导电件特殊结构的设计，能够降低发声装置在其振动方向的高度。
在一个例子中，所述导电件101结合在所述音圈本体的根部区域，所述磁路系统上对应所述导电件设置有避让部；所述音圈上设置有内导通结构，所述壳体上设置有与外部电路导通的外导通结构。
具体地，所述导电件101的第一连接部1011连接于音圈本体的靠近其底端面的侧面；第二连接部1013连接在所述壳体100上；例如，第一连接部1011通过内导通结构103固定在音圈本体的靠近其底端面的侧面，其中所述内导通结构103与音圈本体的漆包线焊接，即实现了第一连接部与音圈本体的电性连接。
所述壳体100上设置有固定柱102，所述第二连接部1013套设在所述固定柱102上；例如所述第二连接部1013呈弯钩形状，第二连接部1013套设在所述固定柱102上。
其中在靠近所述壳体固定柱102的位置设置有外导通结构104；所述 第二连接部1013与外导通结构连接，其中外导通结构配置为与外部电路连接，即实现了第二连接部1013与外部电路的电性连接。
所述导电件101通过内导通结构103和外导通结构104实现音圈与外部电路的电连通；本发明与现有技术相比，减少了锦丝线的使用，降低了发声装置在其振动方向的高度。本例子中，如图3所示为现有发声装置300在其振动方向的高度与本发明发声装置200在其高度对比图；如图3所示，将导电件101设置在音圈本体的根部区域，同时所述导电件的第一连接部与所述内导通结构电性连接后，自所述磁路系统的避让部穿出延伸至所述壳体，并且与所述外导通结构电性连接，通过导电件实现音圈与外部电路的电连通；本发明的发声装置200在其振动方向的高度明显地低于现有发声装置300的高度。其中本发明发声装置200在其振动方向上的高度范围为15-20mm，优选地，发声装置200在振动方向上的高度为17-19mm。本例子使得发声装置更加轻小化。
优选地，所述内导通结构103为固定在所述音圈本体的靠近其底端面的侧面上的焊盘，本例子中所述焊盘上具有承载部，所述承载部被配置为用于固定第一连接部1011，所述第一连接部1011与所述焊盘焊接。所述承载部呈弯折结构，本例子方便了第一连接部1011与焊盘的固定。
优选地，在靠近所述壳体固定柱的位置设置所述外导通结构104；所述外导通结构104为注塑在所述壳体上的焊片；其中所述焊片裸露在所述壳体的外表面上。本例子中方便了外部电路与发声装置的连接。
在一个例子中，所述磁路系统上对应所述导电件101设置有避让部；具体地，如图2所示，所述磁路系统包括盆型的U铁105，所述U铁105的盆腔内设有磁铁；其中本例子中，所述避让部为设置在所述U铁上的缺口1051。
本例子中，导电件101配置为能够穿过所述缺口1051连接至音圈本体的靠近其底端面的侧面。即U铁105上开设的缺口1051形成避让空间，使得导电件101能够产生沿发声装置的振动方向的振动。
其中，所述缺口角度的范围为20°～40°，优选地，所述缺口角度范围为30°。其中在此缺口角度范围内，能够保证导电件的振动空间，从而 不影响发声装置的振动频率和发声装置的声学性能。
在一个例子中，所述导电件为对称设置在所述音圈本体的两侧的两片分体结构；或者，所述导电件为在所述音圈本体的周向上均匀分布的三片或四片分体结构。其中导电件呈对称方式布置或呈阵列方式布置，都能够对音圈的位置固定起到良好的支持作用。
优选地，优选地，所述U铁上对应设置缺口的数量与在所述音圈本体上设置导电件的数量一致。本例子中，导电件为在所述音圈本体的周向上均匀分布的四片分体结构，其中U铁上对应设置四处缺口。
在一个例子中，所述导电件101由金属线一体绕制而成，其中金属线可以采用铜线、铁线、钢线、合金线中的任意一种。其中导电件由金属线一体绕制而成，使得发声装置中的振膜在大位移下振动时能够提供较好的顺性；同时导电件采用金属材料，使得其受高温高湿环境影响较小，耐疲劳性较优秀，也使得发声装置能够在恶劣环境中工作。
在一个例子中，所述弹性件1012沿第一连接部1011向第二连接部1013方向向外扩散，所述弹性件1012形成扩散角度，所述扩散角度不小于10°。本发明人发现，随着扩散角度的增加，导电件的力学劲度值降低，导电件的力学劲度线性变好。例如，导电件的力学劲度范围为0.2～2N/mm，优选地，导电件的力学劲度为0.56N/mm。在此力学劲度范围内，导电件的性能更加优良，同时对音圈位置的固定起到良好的支持作用。
本发明人发现，将所述导电件101固定在音圈本体的根部区域，使得发声装置在振动位移较大时，可以具有较好的顺性；同时也能够降低发声装置失真，提高发声装置的声学性能。
具体地，如图4所示，曲线b代表采用传统定心支片的现有技术发声装置的阻抗曲线；曲线c代表本发明发声装置的阻抗曲线。
其中，本发明实施例发声装置的谐振频率F0为50～300Hz，优选地，谐振频率F0为170Hz。而应用传统的定心支片时，发声装置的谐振频率F0为195Hz。因此当导电件应用到发声装置内，使得发声装置具有良好的低频响应和中频响应，提高了发声装置的声学性能；其中所述发声装置可为大型的低音发声装置或者中音发声装置，可以是如上述实施方式中示出的圆形发声 装置，也可以是方形发声装置。
同时导电件应用到发声装置内，能够降低发声装置的总谐波失真THD，提高发声装置的声学性能。具体地，如图5所示，横坐标表示振动频率，纵坐标表示总谐波失真THD；曲线b代表传统的定心支片应用到发声装置中，发声装置的总谐波失真THD，曲线c代表本发明导电件应用到发声装置中，发声装置的总谐波失真THD。
例如，在100-300Hz频段范围内，本发明发声装置的总谐波失真THD小于10％；具体地，当频率为100Hz时，发声装置的总谐波失真THD小于10％；当频率为200Hz时，发声装置的总谐波失真THD小于2.5％；当频率为300Hz时,发声装置的总谐波失真THD小于2％；
而当发声装置中只设置传统的定心支片时，传统的发声装置的总谐波失真THD小于16％；具体地，当频率为100Hz时，发声装置的总谐波失真THD小于16％；当频率为200Hz时，发声装置的总谐波失真THD小于5％；当频率为300Hz时，发声装置的总谐波失真THD小于2.5％；
因此本例子中发声装置具有良好的声学性能。
根据本发明另一个实施例，提供一种电子终端，其中所述电子终端包括本发明的发声装置，例如，所述电子终端可以为车载音响或者音箱。
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 (18)

  1. 一种发声装置，其特征在于，所述发声装置包括：
    壳体，所述壳体具有容置空间，所述容置空间内安装有磁路系统；
    音圈，所述音圈包括音圈本体和骨架，所述音圈本体绕制在所述骨架外；所述音圈的底端悬置在所述磁路系统的磁间隙中；
    导电件，所述导电件具有与所述音圈固定的第一连接部、与所述壳体固定的第二连接部以及位于所述第一连接部和所述第二连接部之间的弹性件；
    所述导电件结合在所述音圈本体的根部区域，所述磁路系统上对应所述导电件设置有避让部；所述音圈上设置有内导通结构，所述壳体上设置有与外部电路导通的外导通结构，所述导电件的第一连接部与所述内导通结构电性连接后，自所述磁路系统的避让部穿出延伸至所述壳体，并且与所述外导通结构电性连接。
  2. 根据权利要求1所述的发声装置，其特征在于，所述导电件连接于所述音圈本体的靠近其底端面的侧面。
  3. 根据权利要求2所述的发声装置，其特征在于，所述内导通结构为固定在所述音圈本体的靠近其底端面的侧面上的焊盘，所述第一连接部与所述焊盘焊接固定；所述音圈本体的漆包线与所述焊盘焊接固定。
  4. 根据权利要求1所述的发声装置，其特征在于，所述第二连接部呈弯钩形状，所述壳体上设置有固定柱，所述第二连接部套设在所述固定柱上。
  5. 根据权利要求2所述的发声装置，其特征在于，所述导电件由金属线一体绕制而成。
  6. 根据权利要求5所述的发声装置，其特征在于，所述金属线为铜线、铁线、钢线或者合金线。
  7. 根据权利要求4所述的发声装置，其特征在于，在靠近所述壳体固定柱的位置设置所述外导通结构；所述外导通结构为注塑在所述壳体上的焊片；
    所述第二连接部与与所述固定柱固定在一起后，与所述焊片焊接固定。
  8. 根据权利要求7所述的发声装置，其特征在于，所述焊片裸露在所述壳体的外表面上。
  9. 根据权利要求1所述的发声装置，其特征在于，所述弹性件呈平面结构。
  10. 根据权利要求1所述的发声装置，其特征在于，所述弹性件沿第一连接部向第二连接部方向向外扩散，所述缓冲段形成扩散角度，所述扩散角度不小于10°。
  11. 根据权利要求1～10任意一项所述的发声装置，其特征在于，所述导电件为对称设置在所述音圈本体的两侧的两片分体结构；或者，所述导电件为在所述音圈本体的周向上均匀分布的三片或四片分体结构。
  12. 根据权利要求11所述的发声装置，其特征在于，所述磁路系统包括盆型的U铁，所述U铁的盆腔内设有磁铁；
    所述避让部为设置在所述U铁上的缺口。
  13. 根据权利要求12所述的发声装置，其特征在于，所述U铁上对应设置缺口的数量与在所述音圈本体上设置导电件的数量一致，所述缺口角度的范围为20°～40°
  14. 根据权利要求1～10任意一项所述的发声装置，其特征在于，所述发声装置的谐振频率F0为50～300Hz。
  15. 根据权利要求1所述的发声装置，其特征在于，所述发声装置为圆形发声装置或方形发声装置。
  16. 根据权利要求1所述的发声装置，其特征在于，所述发声装置为大型的低音或者中音发声装置。
  17. 一种电子终端，包括如权利要求1～16任意一项所述的发声装置。
  18. 根据权利要求17所述的电子终端，其特征在于，所述电子终端为车载音响或者音箱。
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