WO2018095038A1 - 振动发声装置 - Google Patents

振动发声装置 Download PDF

Info

Publication number
WO2018095038A1
WO2018095038A1 PCT/CN2017/091770 CN2017091770W WO2018095038A1 WO 2018095038 A1 WO2018095038 A1 WO 2018095038A1 CN 2017091770 W CN2017091770 W CN 2017091770W WO 2018095038 A1 WO2018095038 A1 WO 2018095038A1
Authority
WO
WIPO (PCT)
Prior art keywords
coil
mass
vibration
permanent magnet
sounding device
Prior art date
Application number
PCT/CN2017/091770
Other languages
English (en)
French (fr)
Inventor
朱跃光
王超
Original Assignee
歌尔股份有限公司
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 歌尔股份有限公司 filed Critical 歌尔股份有限公司
Publication of WO2018095038A1 publication Critical patent/WO2018095038A1/zh

Links

Images

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
    • H04R9/06—Loudspeakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • 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
    • H04R2400/00—Loudspeakers
    • H04R2400/11—Aspects regarding the frame of loudspeaker transducers

Definitions

  • the present invention relates to the field of consumer electronic products, and more particularly to a vibration sounding device having a vibration and sounding function.
  • the vibration sounding device mainly provides an elastic support member on a magnetic system fixed in the transmission speaker product, suspends the magnetic circuit system through the elastic support member, and increases the vibration feeling by adding a mass block on the magnetic circuit system.
  • the mass of the suspended portion of the magnetic circuit system is relatively large, and the frequency of the audio signal is much higher than the resonant frequency thereof, and the coil will push the diaphragm to vibrate and sound;
  • the magnetic circuit system will generate vibration, which will cause the sounding device to generate vibration.
  • the existing vibration sounding device mainly adopts a moving coil type structure, and passes through a central magnet in the middle of one coil, and side magnets are respectively disposed on both sides of the coil, and the coil needs to avoid two magnetic waves on both sides of the coil and the side magnet in the magnetic circuit.
  • the gap, and the two magnetic gaps between the coil and the central magnet that is to say, the coil needs to avoid the space of four magnetic gaps in the magnetic circuit. Due to the limitation of the structure of the magnetic circuit itself, the internal space utilization of the product is low.
  • the central axis of the coil of the moving coil structure is perpendicular to the diaphragm, and the permanent magnets are respectively parallel to the coil, and the driving force is weak, which is disadvantageous for miniaturization of the product.
  • an object of the present invention is to provide a vibration sounding device to solve the disadvantages of low space utilization rate of products, unstable product performance, and unfavorable product miniaturization.
  • the vibration sounding device comprises a housing, a sounding system housed in the housing, a vibration system, and an elastic support member for suspending the vibration system in the housing
  • the sounding system includes a diaphragm and at least one coil vertically fixed to a side of the diaphragm facing the vibration system, a central axis of the coil being parallel to a plane of the diaphragm and the vibration
  • the vibration direction of the system is vertical;
  • the vibration system includes a mass and at least one permanent magnet disposed on the mass, and the mass is provided with a through hole adapted to the coil, the coil avoiding In the through hole, the coil forms a sandwich structure with the permanent magnet.
  • the mass is provided with at least one pair of permanent magnets respectively located on both sides of the coil that are avoided in the through hole of the mass and perpendicular to the central axis of the coil. There is a gap between the coil and the permanent magnet.
  • the size of the through hole is larger than a sum of a cross sectional dimension of the coil and a cross sectional size of the permanent magnet.
  • the permanent magnet includes two permanent magnets that are parallel to each other and symmetrically disposed on both sides of the coil, and the magnetization directions of the two permanent magnets are parallel to the moving direction of the mass; or
  • the permanent magnet includes at least four permanent magnets that are parallel to each other and symmetrically disposed on both sides of the coil, and a magnetization direction of the permanent magnet is perpendicular to a moving direction of the mass.
  • the mass is provided with at least one permanent magnet located between the two coils in the through hole of the mass and perpendicular to the central axis of the coil. There is a gap between the coil and the permanent magnet.
  • the mass is provided with at least one permanent magnet located between two coils in the through hole of the mass and at least one of two sides of the two coils For permanent magnets.
  • the elastic support member is fixed to the mass at one end and fixed to the housing at the other end.
  • a preferred solution includes two elastic support members respectively located on upper and lower sides of the mass, wherein one end of one of the elastic support members is fixed on the mass and the other end is fixed in the same The other end of the elastic support member is fixed to the mass, and one end is fixed to the housing.
  • a preferred solution is to further include a copper ring; the diaphragm includes a peripheral fixing portion and a fixing portion a folded portion of the concave/convex structure integrally provided and a reinforcing portion located in the folded ring portion; and the fixing portion is fixed to the casing by a copper ring.
  • the elastic support member is provided with a notch that avoids the coil, and the size of the notch is not smaller than a cross-sectional dimension of the coil.
  • the mass is provided with a escape groove for housing the permanent magnet.
  • a flexible circuit board fixed to the casing is further included; a lead wire of the coil extends to the flexible circuit board, and the coil is electrically connected to an external circuit through the flexible circuit board.
  • the diaphragm further includes a copper ring; the diaphragm includes a peripheral fixing portion, a folded portion of the concave/convex structure integrally provided with the fixing portion, and a reinforcing portion located in the folded portion; and The fixing portion is fixed to the housing by the copper ring.
  • a washer plate is disposed on each of the upper and lower sides of the permanent magnet parallel to the diaphragm.
  • the housing comprises an upper and a lower housing that are adapted to be connected.
  • the vibration sounding device is used to fix the coil vertically on the diaphragm, and the permanent magnet and the coil form a sandwich structure, which can reduce the magnetic gap that the coil needs to avoid to two, increase the utilization ratio of the internal space of the product, improve the driving force, and improve the product.
  • the elastic support members are fixed on the upper and lower sides of the mass to adjust the resonance frequency of the product vibration system and improve the vibration of the product.
  • FIG. 1 is an exploded view of a vibration sounding device according to a first embodiment of the present invention
  • Figure 2 is a general view of a vibration sounding device according to a first embodiment of the present invention
  • Figure 3 is a cross-sectional view taken along line A of Figure 2;
  • Figure 4-1 is a cross-sectional view taken along line B of Figure 2;
  • FIG. 4-2 is a schematic view showing a vibration direction and a magnetization direction of a vibration sounding device according to Embodiment 1 of the present invention.
  • Figure 5 is a cross-sectional view showing a vibration sounding device according to a second embodiment of the present invention.
  • 6-1 is an exploded view of a vibration sounding device according to a third embodiment of the present invention.
  • Figure 6-2 is a cross-sectional view showing a vibration sounding device according to a third embodiment of the present invention.
  • 6-3 is a schematic view showing a vibration direction and a magnetization direction of a vibration sounding device according to a third embodiment of the present invention.
  • the reference numerals include: lower case 1, copper ring 2, reinforcing portion 3, diaphragm 4, elastic support member 5, elastic support member 5', coil 6, coil lead 61, permanent magnet 7, mass block 8, The board 9 , the upper case 10 , and the flexible circuit board 11 .
  • FIG. 1 and 2 respectively show an exploded structure and an overall structure of a vibration sounding device according to a first embodiment of the present invention.
  • the vibration sounding device of the first embodiment of the present invention comprises a casing, a sounding system housed in the casing, a vibration system, and an elastic support for suspending the vibration system in the casing.
  • the member 5, 5', the vibration system further comprises a mass 8 and a permanent magnet 7 disposed on the mass 8;
  • the sounding system comprises a diaphragm 4 and a coil 6 fixed perpendicularly to the side of the diaphragm 4 facing the mass 8, and the coil
  • the central axis of 6 is parallel to the plane of the diaphragm 4, wherein the central axis direction of the coil 6 refers to the central axis direction of the columnar body formed by the coil 6, which is perpendicular to the vibration direction of the mass 8.
  • a through hole adapted to the coil 6 is provided on the mass 8, and the coil 6 is avoided in the through hole, and the permanent magnet 7 and the coil 6 constitute a sandwich structure.
  • the elastic support member is provided with two, and the two elastic support members 5, 5' are symmetrically disposed on the upper and lower sides of the mass 8 with respect to the center of the mass 8 and are both "L"-shaped sheet-like structures; One end of the elastic support member 5, 5' is welded and fixed to the end of the mass 8 and the other end is fixed to the side wall of the housing, thereby suspending the mass 8 in the housing through the elastic support members 5, 5', and Provides elastic restoring force for the movement of the mass 8.
  • the mass 8 moves up and down in the vertical direction, and its moving direction is perpendicular to the plane in which the diaphragm 4 is located.
  • the sandwich structure includes two coils that are circumvented within the two through holes of the mass and a permanent magnet sandwiched between the two coils, the permanent magnet being parallel to the coil (perpendicular to the There is a gap between the coil and the coil.
  • the vibrating sounding device of the present invention may comprise one or more of the above sandwich structures, and in the sandwich structure, there may be a plurality of permanent magnets between the two coils.
  • the through hole of the escape coil is located in the middle of the mass.
  • the vibrating sounding device of the present invention may comprise one or more of the above-mentioned sandwich structures.
  • a plurality of pairs of permanent magnets may be included, which are respectively parallel to the coils and located on both sides of the coil.
  • the above two embodiments provide a plurality of different sandwich structures, but the present invention is not limited thereto, and may be any combination of the above various sandwich structures.
  • at least one permanent magnet may be disposed between the two coils. At least one pair of permanent magnets is disposed outside the two coils.
  • FIG. 3 is a cross-sectional view taken along line A of FIG. 2
  • FIG. 4-1 is a cross-sectional view taken along line B of FIG.
  • the elastic support members 5, 5' are located on the upper and lower sides of the mass block 8, and the two ends of the elastic support members 5, 5' are respectively fixed to the mass.
  • the gap of the coil 6 is required to be provided on the elastic support members 5, 5'.
  • the size of the coil 6 is not smaller than the cross-sectional dimension of the coil 6, and when the mass 8 is moved or the diaphragm 4 drives the coil 6 to vibrate, collision of the coil 6 and the elastic support members 5, 5' can be avoided.
  • a through hole for escaping the coil 6 is also provided on the mass 8, and a receiving hole is provided in the through hole.
  • a relief groove of the permanent magnet 7, the permanent magnet 7 is disposed on both sides of the coil 6 and housed in the corresponding escape groove; and a certain gap is provided between the coil 6 and the permanent magnet 7, thereby preventing the mass 8 from moving or When the diaphragm 4 drives the coil 6 to vibrate, the coil 6 collides with the permanent magnet 7 in the mass 8. It is understood that the size of the through hole needs to be larger than the sum of the cross-sectional size of the coil 6 and the cross-sectional size of the permanent magnet 7, thereby ensuring a gap between the coil 6 and the permanent magnet 7.
  • the permanent magnets 7 may be integrally or separately fixed in the corresponding escape grooves by means of glue coating or laser welding, as shown in FIG. 4-2, the permanent magnets 7 are parallel and symmetric with each other. Two permanent magnets are disposed on both sides of the coil 6. The magnetization directions of the two permanent magnets are parallel to the moving direction (F and F' directions) of the mass 8; in other words, the magnetization directions of the two permanent magnets 7 are opposite and charged. The magnetic directions are perpendicular to the plane of the diaphragm 4.
  • FIG. 5 shows a cross-sectional structure of a vibration sounding device according to a second embodiment of the present invention.
  • the basic structure of the vibration sounding device of the second embodiment of the present invention is similar to that of the vibration sounding device of the first embodiment; the difference is that the upper and lower sides of the permanent magnet 7 and the diaphragm 4 are parallel.
  • the size of the slab 9 is consistent with the cross-sectional dimension of the permanent magnet 7, and the number of the slab 9 is two times the number of the permanent magnets 7, and is enhanced by the slab 9
  • the strength of the magnetic field generated by the magnet 7 gathers the number of magnetic lines of force passing through the coil 6, thereby giving the product a greater magnetic flux and a stronger vibratory effect.
  • the number of permanent magnets and the direction of magnetization can be variously deformed.
  • two, three or four permanent magnets are respectively arranged on both sides of the coil.
  • the magnetization direction of the magnet is vertical magnetization or horizontal magnetization.
  • 6-1 and 6-2 respectively show an exploded structure and a sectional structure of a vibration sounding device according to a third embodiment of the present invention.
  • the basic structure of the vibration sounding device of the third embodiment of the present invention is similar to that of the first embodiment; the difference is that the permanent magnets 7 are arranged in parallel with each other and symmetrically disposed on the coil 6.
  • the four permanent magnets on the side as shown in Fig. 6-3, the magnetization direction of the permanent magnet 7 is perpendicular to the moving direction (F and F' directions) of the mass 8, and is located adjacent to the same side of the coil 6.
  • the abutting ends of the two permanent magnets have opposite magnetization directions, and increasing the number of permanent magnets can make the generated magnetic field more stable and enhance the vibration of the vibration system.
  • two vertically arranged permanent magnets 7 are respectively disposed on both sides of the coil 6, and the magnetization directions of the two permanent magnets 7 on the same side of the coil 6 are parallel to the central axis direction of the coil 6, and two The abutting ends of the permanent magnets 7 have opposite polarities. It can be seen that one or more permanent magnets can be disposed on both sides of the coil 6, and it is ensured that the permanent magnets disposed on both sides of the coil are symmetrically distributed with respect to the coil.
  • the corresponding wales can be respectively disposed on the upper and lower sides of each permanent magnet, and the magnetic lines are gathered by the slab to improve the vibration of the product.
  • the vibration sounding device of the embodiment of the present invention further includes a flexible circuit board 11 fixed on the casing.
  • FPCB Flexible Printed Circuit Board
  • the lead of the coil 6 ie, the coil lead 61
  • the coil 6 is electrically connected to the external circuit through the flexible circuit board 11, thereby realizing The communication between the internal and external circuits of the vibration sounding device.
  • the diaphragm 4 may have a circular or rectangular structure, and the diaphragm 4 includes a fixing portion 4-1 (located at the outermost periphery of the diaphragm) fixedly connected to the housing, and fixed. a folded portion 4-2 of a concave/convex structure integrally provided in a portion, and a flat portion 4-3 (located at the innermost portion of the diaphragm) provided inside the folded portion, and the reinforcing portion 3 (DOME) is disposed on the diaphragm 4
  • the plane portion 4-3 is mainly used for adjusting the acoustic performance of the vibration sounding device.
  • the material is usually set at the position corresponding to the reinforcing portion 3 of the plane portion, and the reinforcing portion 3 covers the material. position.
  • the vibration sounding device further includes a copper ring 2, and the fixing portion of the diaphragm 4 can be fixedly bonded to the inner wall of the casing through the copper ring 2, and can pass through the copper ring when the diaphragm 4 vibrates greatly 2 or other metal rings support and fix the diaphragm 4.
  • the copper ring 2 is fixed on the end surface of the casing, and the fixing portion is combined with the copper ring 2, wherein the glue of the fixed diaphragm can be uniformly distributed on each contact surface, and the distortion of the diaphragm is avoided when the sound is too large.
  • the housing may further include an upper case 10 and a lower case 1 which are adapted to be connected, the upper case 10 is an unclosed rectangular parallelepiped structure, and the lower case 1 is fixed to the open end of the upper case 10, vibrating Both the system and the sounding system are housed in a cavity formed by the upper casing 10 and the lower casing 1.
  • the lower case 1 is provided with an extended tray, the structure of the tray corresponds to the flexible circuit board 11, the flexible circuit board 11 can be fastened or affixed to the pallet, and the lead of the coil 6 extends to the housing.
  • the outside is electrically connected to the flexible circuit board 11.
  • the vibration sounding device of the embodiment of the invention has one side of the coil vertically disposed on the side of the diaphragm, and the permanent magnets are symmetrically disposed on both sides of the coil, thereby saving the space for the coil to avoid the permanent magnet and adding the housing.
  • the utilization of the internal space is conducive to the development of miniaturization of the product; in addition, the shrapnel is placed on the upper and lower sides of the mass to effectively fix the mass and adjust the resonance frequency of the vibration system of the product, and the product performance is stable and the vibration is strong.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)

Abstract

提供一种振动发声装置，包括壳体以及收容在壳体内的发声系统、振动系统，以及用于将振动系统悬置于壳体内的弹性支撑件，其中，所述发声系统包括振膜和垂直固定在所述振膜朝向所述振动系统一侧的至少一个线圈，所述线圈的中轴线与所述振膜所在平面相平行且与所述振动系统的振动方向垂直；所述振动系统包括质量块和设置在所述质量块上的至少一个永磁铁，所述质量块上设置有与所述线圈相适配的通孔，所述线圈避让在所述通孔内，所述线圈与所述永磁铁形成夹层结构。能够提高产品的空间利用率及产品性能。

Description

振动发声装置 技术领域
本发明涉及消费类电子产品技术领域，更为具体地，涉及一种具备振动和发声功能的振动发声装置。
背景技术
随着便携式终端消费类电子产品的发展，人们对该类产品的功能要求也越来越强，在移动电话音乐等功能上，为了使娱乐效果更强，用户体验更好，出现了在播放音乐的同时能够振动的模式，对带有振动功能的发声装置的性能要求也逐渐增强。
目前，振动发声装置主要是通过在传动扬声器产品中固定不动的磁力系统上设置弹性支撑件，通过弹性支撑件将磁路系统悬设，并通过在磁路系统上增设质量块增加振感，当振动扬声器中通入较高频率的音频信号时，因磁路系统等悬设部分的质量较大，音频信号的频率远高于其共振频率，线圈将推动振膜振动发声；反之，当通入低频信号时，磁路系统将会产生振动，从而使发声装置产生振感。
现有振动发声装置主要以动圈式结构为主，在一个线圈中间穿过中心磁铁，在线圈两侧分别设置有边磁铁，线圈在磁路中需要避让线圈两侧与边磁铁的两个磁间隙，以及线圈与中心磁铁之间的两个磁间隙，也就是说线圈在磁路中需要避让四个磁间隙的空间，这类产品由于磁路本身结构的限制，产品内部空间利用率较低，在尺寸较小的产品上表现不佳，另外，现有技术中动圈式结构的线圈的中轴线与振膜垂直，永磁铁分别与线圈平行，驱动力弱，不利于产品的小型化。
发明内容
鉴于上述问题，本发明的目的是提供一种振动发声装置，以解决目前产品空间利用率低，产品性能不稳定，不利于产品小型化发展的弊端。
本发明提供的振动发声装置，一种振动发声装置，包括壳体以及收容在所述壳体内的发声系统、振动系统，以及用于将所述振动系统悬置于所述壳体内的弹性支撑件，其中，所述发声系统包括振膜和垂直固定在所述振膜朝向所述振动系统一侧的至少一个线圈，所述线圈的中轴线与所述振膜所在平面相平行且与所述振动系统的振动方向垂直；所述振动系统包括质量块和设置在所述质量块上的至少一个永磁铁，所述质量块上设置有与所述线圈相适配的通孔，所述线圈避让在所述通孔内，所述线圈与所述永磁铁形成夹层结构。
此外，优选的方案是，所述质量块上设置有至少一对永磁铁，分别位于避让在所述质量块的通孔内的所述线圈两侧且与所述线圈的中轴线垂直，所述线圈与所述永磁铁之间存在间隙。
此外，优选的方案是，所述通孔的尺寸大于所述线圈的横截面尺寸与所述永磁铁的横截面尺寸之和。
此外，优选的方案是，所述永磁铁包括相互平行且对称设置在所述线圈两侧的两块永磁铁，所述两块永磁铁的充磁方向与所述质量块的运动方向平行；或者，所述永磁铁包括相互平行且对称设置在所述线圈两侧的至少四块永磁铁，所述永磁铁的充磁方向与所述质量块的运动方向垂直。
此外，优选的方案是，所述质量块上设置有至少一个永磁铁，位于避让在所述质量块的通孔内的两个所述线圈之间且与所述线圈的中轴线垂直，所述线圈与所述永磁铁之间存在间隙。
此外，优选的方案是，所述质量块上设置有位于避让在所述质量块的通孔内的两个所述线圈之间的至少一个永磁铁以及位于两个所述线圈两侧的至少一对永磁铁。
此外，优选的方案是，所述弹性支撑件一端固定在所述质量块上，另一端固定在所述壳体上。
此外，优选的方案是，包括两个所述弹性支撑件，分别位于所述质量块的上下两侧，其中，一个所述弹性支撑件的一端固定在所述质量块上，另一端固定在所述壳体上；另一个所述弹性支承件的所述另一端固定在质量块上，所述一端固定在所述壳体上。
此外，优选的方案是，还包括铜环；振膜包括外围的固定部、与固定部 一体设置的凹/凸结构的折环部以及位于折环部内的补强部；并且，固定部通过铜环固定在壳体上。
此外，优选的方案是，在所述弹性支撑件上设置有避让所述线圈的缺口，所述缺口的尺寸不小于所述线圈的横截面尺寸。
此外，优选的方案是，在所述质量块上设置有收容所述永磁铁的避让槽。
此外，优选的方案是，还包括固定在所述壳体上的柔性电路板；所述线圈的引线延伸至所述柔性电路板上，所述线圈通过所述柔性电路板与外部电路导通。
此外，优选的方案是，还包括铜环；所述振膜包括外围的固定部、与固定部一体设置的凹/凸结构的折环部以及位于所述折环部内的补强部；并且，所述固定部通过所述铜环固定在所述壳体上。
此外，优选的方案是，在所述永磁铁与所述振膜相平行的上下两个侧面上分别设置有华司板。
此外，优选的方案是，所述壳体包括适配连接的上壳和下壳。
利用上述振动发声装置，将线圈垂直固定在振膜上，永磁铁和线圈组成夹层结构，能够将线圈需要避让的磁间隙缩减至两个，增加产品内部空间的利用率，提高驱动力，提高产品的性能；另外，弹性支撑件固定在质量块的上下两侧，能够调节产品振动系统的谐振频率，提高产品的振感。
为了实现上述以及相关目的，本发明的一个或多个方面包括后面将详细说明的特征。下面的说明以及附图详细说明了本发明的某些示例性方面。然而，这些方面指示的仅仅是可使用本发明的原理的各种方式中的一些方式。此外，本发明旨在包括所有这些方面以及它们的等同物。
附图说明
通过参考以下结合附图的说明，并且随着对本发明的更全面理解，本发明的其它目的及结果将更加明白及易于理解。在附图中：
图1为根据本发明实施例一的振动发声装置的分解图；
图2为根据本发明实施例一的振动发声装置的整体图；
图3为图2中沿A面的剖面图；
图4-1为图2中沿B面的剖面图；
图4-2为本发明实施例一的振动发声装置的振动方向和充磁方向的示意图；
图5为根据本发明实施例二的振动发声装置的剖面图；
图6-1为根据本发明实施例三的振动发声装置的分解图；
图6-2为根据本发明实施例三的振动发声装置的剖面图；
图6-3为本发明实施例三的振动发声装置的振动方向和充磁方向的示意图。
其中的附图标记包括：下壳1、铜环2、补强部3、振膜4、弹性支撑件5、弹性支撑件5’、线圈6、线圈引线61、永磁铁7、质量块8、华司板9、上壳10、柔性电路板11。
在所有附图中相同的标号指示相似或相应的特征或功能。
具体实施方式
在下面的描述中，出于说明的目的，为了提供对一个或多个实施例的全面理解，阐述了许多具体细节。然而，很明显，也可以在没有这些具体细节的情况下实现这些实施例。在其它例子中，为了便于描述一个或多个实施例，公知的结构和设备以方框图的形式示出。
为详细描述本发明实施例的振动发声装置结构，以下将结合附图对本发明的具体实施例进行详细描述。
图1和图2分别示出了根据本发明实施例一的振动发声装置的分解结构和整体结构。
如图1和图2共同所示，本实用新型实施例一的振动发声装置，包括壳体、收容在壳体内的发声系统、振动系统，以及用于将振动系统悬置于壳体内的弹性支撑件5、5’，振动系统进一步包括质量块8和设置在质量块8上的永磁铁7；发声系统包括振膜4和垂直固定在振膜4朝向质量块8一侧的线圈6，且线圈6的中轴线与振膜4所在平面相平行，其中，线圈6的中轴线方向是指线圈6所形成的柱状体的中轴线方向，其垂直于质量块8的振动方向。在质量块8上设置有与线圈6相适配的通孔，线圈6避让在通孔内，永磁铁7和线圈6构成夹层结构。
具体地，弹性支撑件设置有两个，两个弹性支撑件5、5’关于质量块8的中心呈中心对称设置在质量块8的上下两侧，且均为“L”形片状结构；弹性支撑件5、5’的一端焊接固定在质量块8的端部，另一端固定在壳体的侧壁上，从而通过弹性支撑件5、5’将质量块8悬设在壳体内，并为质量块8的运动提供弹性恢复力。在本发明实施例的振动发声装置中，质量块8在竖直方向上下运动，其运动方向与振膜4所在平面相垂直。
在一个实施例中，上述夹层结构包括避让在质量块的两个通孔内的两个线圈以及夹在两个线圈之间的永磁铁，所述永磁铁与所述线圈平行(垂直于所述线圈的中轴线)且与线圈之间存在间隙。
本发明所述振动发声装置可以包括一个或者多个上述夹层结构，另外上述夹层结构中，位于两个线圈之间的永磁铁可以为多个。
上述两个与振膜垂直的线圈中间夹与线圈平行的永磁铁的夹层结构，在振动发声时，驱动力弱，因此在本发明的一个优选实施例中，上述夹层结构包括避让在质量块的通孔内的一个线圈以及位于线圈两侧与线圈平行的一对永磁铁，每个永磁铁与线圈之间均存在间隙，优选地，所述避让线圈的通孔位于质量块的中部。
本发明所述振动发声装置可以包括一个或者多个上述夹层结构，另外，在上述夹层结构中，可以包括多对永磁铁，分别与线圈平行且位于线圈的两侧。
上述两个实施例给出了多种不同的夹层结构，但是本发明并不限于此，还可以是上述多种夹层结构的任意组合，例如，可以在两个线圈中间设置有至少一个永磁铁，两个线圈的外侧设置有至少一对永磁铁。
图3为图2中沿A面的剖面图，图4-1为图2中沿B面的剖面图。
结合图1至图4共同所示，本发明实施例一的振动发声装置，弹性支撑件5、5’位于质量块8的上下两侧，弹性支撑件5、5’的两端分别固定在质量块8的端部与壳体的侧壁上，由于线圈6是垂直粘贴在振膜4靠近质量块8的一侧，因此需在弹性支撑件5、5’上设置避让线圈6的缺口，缺口的尺寸不小于线圈6的横截面尺寸，在质量块8运动时或者振膜4带动线圈6振动时，能够避免线圈6和弹性支撑件5、5’发生碰撞。
此外，在质量块8上也设置有避让线圈6的通孔，在通孔上设置有收容 永磁铁7的避让槽，永磁铁7设置在线圈6的两侧并收容在对应的避让槽内；并且，在线圈6和永磁铁7之间设置一定的缝隙，从而避免质量块8运动时或者振膜4带动线圈6振动时，线圈6和质量块8内的永磁铁7发生碰撞。可知，通孔的尺寸需大于线圈6的横截面尺寸与永磁铁7的横截面尺寸之和，从而确保线圈6和永磁铁7之间存在间隙。
在本发明的一个具体实施方式中，可采用涂胶或者激光电焊等方式将永磁铁7整体或者分别固定在对应的避让槽内，如图4-2所示，永磁铁7包括相互平行且对称设置在线圈6两侧的两块永磁铁，两块永磁铁的充磁方向与质量块8的运动方向(F和F＇方向)平行；换言之，两块永磁铁7的充磁方向相反且充磁方向均与振膜4所在平面相垂直。
为聚拢磁力线，提高磁场利用率，还可以在磁铁的两端添加华司板，通过华司板聚集磁力线，改善产品性能。其中，图5示出了根据本发明实施例二的振动发声装置的剖面结构。
如图5所示，本发明实施二的振动发声装置的基本结构与实施例一中的振动发声装置相类似；不同之处在于，在永磁铁7与振膜4相平行的上下两个侧面上分别设置有华司板9，华司板9的尺寸与永磁铁7的横截面尺寸相一致，华司板9的个数是永磁铁7设置个数的俩倍，通过华司板9增强永磁铁7产生的磁场强度，聚拢穿过线圈6的磁力线数量，从而使产品获得更大的磁通量和更强的振感效果。
需要说明的是，根据产品尺寸及生产要求，永磁铁的设置个数及其充磁方向均可进行多种变形，例如，在线圈两侧分别设置两块、三块或者四块永磁铁，永磁铁的充磁方向为竖向充磁或者水平充磁等。
图6-1和6-2分别示出了根据本发明实施例三的振动发声装置的分解结构和剖面结构。
如图6-1和图6-2共同所示，本发明实施三的振动发声装置的基本结构与实施例一相类似；不同之处在于，永磁铁7包括相互平行且对称设置在线圈6两侧的四块永磁铁，如图6-3所示，永磁铁7的充磁方向与质量块8的运动方向(F和F＇方向)相垂直，且位于线圈6同侧的相邻接设置的两块永磁铁的邻接端的充磁方向相反，增加永磁铁的设置个数可以使产生的磁场更加稳定，并增强振动系统的振感。
换言之，在线圈6的两侧分别设置有两块竖向排列的永磁铁7，位于线圈6同一侧的两块永磁铁7的充磁方向均与线圈6的中轴线方向相平行，且两块永磁铁7的邻接端的极性相反。可知，在线圈6的两侧可以设置一至多个永磁铁，确保设置在线圈两侧的永磁铁是关于线圈呈对称分布的即可。
具体地，还可以在各永磁铁的上下两侧分别设置对应的华司板，通过华司板聚集磁力线，提高产品的振感。
需要说明的是，上述各实施例均可相互借鉴以及组合；此外，结合图1至图6-3共同所示，本发明实施例的振动发声装置还包括固定在壳体上的柔性电路板11(FPCB，Flexible Printed Circuit Board)，线圈6的引线(即线圈引线61)延伸至柔性电路板11上并与柔性电路板11导通，线圈6通过柔性电路板11与外部电路导通，从而实现振动发声装置内外部电路的连通。
在本实用新型的另一具体实施方式中，振膜4可以为圆形或者长方形等结构，振膜4包括与壳体固定连接的固定部4-1(位于振膜的最外围)、与固定部一体设置的凹/凸结构的折环部4-2以及设置在折环部内部的平面部4-3(位于振膜的最内部)，补强部3(DOME)设置在振膜4的平面部4-3，主要用于调节振动发声装置的声学性能，为降低发声系统的总体质量，通常在平面部对应补强部3的位置设置去料，补强部3则覆盖在该去料位置。
为提高振膜的稳定性，振动发声装置还包括铜环2，振膜4的固定部可通过铜环2与壳体的内壁固定粘结，在振膜4大幅度振动时，能够通过铜环2或者其他金属环对振膜4进行支撑固定。其中，铜环2固定在壳体的端面上，固定部与铜环2相结合，其一，能够确保固定振膜的胶水在各接触面分布均匀，在声音过大时，避免振膜出现失真或者破音；其二，当振膜的运动幅度变大时，能够避免线圈脱位或者振膜从壳体边缘脱开等现象，产品的可靠性高、声学性能稳定。
此外，本发明实施例的振动发声装置，壳体还可包括适配连接的上壳10和下壳1，上壳10为未封闭长方体结构，下壳1固定在上壳10的开放端，振动系统和发声系统均收容在上壳10和下壳1形成的腔体内。其中，在下壳1上设置有延伸出的托板，托板的结构与柔性电路板11相对应，柔性电路板11可扣合或者粘贴固定在托板上，线圈6的引线则延伸至壳体外侧并与柔性电路板11导通。
通过上述实施方式可以看出，本发明实施例的振动发声装置，将线圈垂直设置振膜的一侧，永磁铁对称设置在线圈的两侧，节省了线圈避让永磁体的空间，增加了壳体内部空间的利用率，有利于产品小型化的发展；此外，弹片设置在质量块的上下两侧，可以有效固定质量块，并调节产品振动系统的谐振频率，产品性能稳定，振感强烈。
如上参照附图以示例的方式描述了根据本发明的振动发声装置。但是，本领域技术人员应当理解，对于上述本发明所提出的振动发声装置，还可以在不脱离本发明内容的基础上做出各种改进。因此，本发明的保护范围应当由所附的权利要求书的内容确定。

Claims (14)

  1. 一种振动发声装置，包括壳体以及收容在所述壳体内的发声系统、振动系统，以及用于将所述振动系统悬置于所述壳体内的弹性支撑件，其特征在于，
    所述发声系统包括振膜和垂直固定在所述振膜朝向所述振动系统一侧的至少一个线圈，所述线圈的中轴线与所述振膜所在平面相平行且与所述振动系统的振动方向垂直；
    所述振动系统包括质量块和设置在所述质量块上的至少一个永磁铁，所述质量块上设置有与所述线圈相适配的通孔，所述线圈避让在所述通孔内，所述线圈与所述永磁铁形成夹层结构。
  2. 根据权利要求1所述的振动发声装置，其特征在于，所述质量块上设置有至少一对永磁铁，分别位于避让在所述质量块的通孔内的所述线圈两侧且与所述线圈的中轴线垂直，所述线圈与所述永磁铁之间存在间隙。
  3. 如权利要求2所述的振动发声装置，其特征在于，
    所述通孔的尺寸大于所述线圈的横截面尺寸与所述永磁铁的横截面尺寸之和。
  4. 如权利要求2所述的振动发声装置，其特征在于，
    所述永磁铁包括相互平行且对称设置在所述线圈两侧的两块永磁铁，所述两块永磁铁的充磁方向与所述质量块的运动方向平行；或者，
    所述永磁铁包括相互平行且对称设置在所述线圈两侧的至少四块永磁铁，所述永磁铁的充磁方向与所述质量块的运动方向垂直。
  5. 根据权利要求1所述的振动发声装置，其特征在于，所述质量块上设置有至少一个永磁铁，位于避让在所述质量块的通孔内的两个所述线圈之间且与所述线圈的中轴线垂直，所述线圈与所述永磁铁之间存在间隙。
  6. 根据权利要求1所述的振动发声装置，其特征在于，所述质量块上设置有位于避让在所述质量块的通孔内的两个所述线圈之间的至少一个永磁铁以及位于两个所述线圈两侧的至少一对永磁铁。
  7. 如权利要求1所述的振动发声装置，其特征在于，
    所述弹性支撑件，一端固定在所述质量块上，另一端固定在所述壳体上。
  8. 如权利要求7所述的振动发声装置，其特征在于，
    包括两个所述弹性支撑件，分别位于所述质量块的上下两侧，其中，一个所述弹性支撑件的一端固定在所述质量块上，另一端固定在所述壳体上；另一个所述弹性支承件的所述另一端固定在质量块上，所述一端固定在所述壳体上。
  9. 如权利要求1所述的振动发声装置，其特征在于，
    在所述弹性支撑件上设置有避让所述线圈的缺口，所述缺口的尺寸不小于所述线圈的横截面尺寸。
  10. 如权利要求1所述的振动发声装置，其特征在于，
    在所述质量块上设置有收容所述永磁铁的避让槽。
  11. 如权利要求1所述的振动发声装置，其特征在于，还包括固定在所述壳体上的柔性电路板；
    所述线圈的引线延伸至所述柔性电路板上，所述线圈通过所述柔性电路板与外部电路导通。
  12. 如权利要求1所述的振动发声装置，其特征在于，
    还包括铜环；
    所述振膜包括外围的固定部、与固定部一体设置的凹/凸结构的折环部以及位于所述折环部内的补强部；并且，
    所述固定部通过所述铜环固定在所述壳体上。
  13. 如权利要求1所述的振动发声装置，其特征在于，
    在所述永磁铁与所述振膜相平行的上下两个侧面上分别设置有华司板。
  14. 如权利要求1所述的振动发声装置，其特征在于，
    所述壳体包括适配连接的上壳和下壳。
PCT/CN2017/091770 2016-11-23 2017-07-05 振动发声装置 WO2018095038A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201611050030.9A CN106658309B (zh) 2016-11-23 2016-11-23 振动发声装置
CN201611050030.9 2016-11-23

Publications (1)

Publication Number Publication Date
WO2018095038A1 true WO2018095038A1 (zh) 2018-05-31

Family

ID=58811967

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2017/091770 WO2018095038A1 (zh) 2016-11-23 2017-07-05 振动发声装置

Country Status (2)

Country Link
CN (1) CN106658309B (zh)
WO (1) WO2018095038A1 (zh)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109617356A (zh) * 2019-02-12 2019-04-12 共达电声股份有限公司 一种线性激励器
CN112243188A (zh) * 2019-07-19 2021-01-19 歌尔股份有限公司 换能器磁路结构、换能器及其电子设备
CN112243183A (zh) * 2019-07-19 2021-01-19 歌尔股份有限公司 磁势扬声器及其电子设备
CN112929799A (zh) * 2021-01-20 2021-06-08 武汉华星光电半导体显示技术有限公司 振动发声组件及显示装置
CN113660590A (zh) * 2021-08-31 2021-11-16 歌尔股份有限公司 用于电子装置的发声器件及电子装置
CN113747318A (zh) * 2020-05-29 2021-12-03 歌尔股份有限公司 发声装置和电子设备
CN114286266A (zh) * 2021-02-07 2022-04-05 歌尔股份有限公司 扬声器和电子设备

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106658309B (zh) * 2016-11-23 2019-08-02 歌尔股份有限公司 振动发声装置
CN107147267B (zh) * 2017-05-18 2023-11-24 歌尔股份有限公司 线性振动马达
CN111200778B (zh) * 2018-11-20 2021-08-31 乔旸电子股份有限公司 音圈具有弹波功能的薄型扬声器
CN109246557B (zh) * 2018-11-23 2020-06-02 歌尔股份有限公司 一种扬声器
CN109842701B (zh) * 2018-12-24 2023-11-17 歌尔股份有限公司 屏幕振动发声装置和电子产品
WO2020140177A1 (zh) * 2018-12-30 2020-07-09 瑞声声学科技(深圳)有限公司 一种扬声器
WO2020140176A1 (zh) * 2018-12-30 2020-07-09 瑞声声学科技(深圳)有限公司 一种扬声器
WO2021000143A1 (zh) * 2019-06-30 2021-01-07 瑞声声学科技(深圳)有限公司 振动激励器
WO2021134168A1 (zh) * 2019-12-30 2021-07-08 瑞声声学科技(深圳)有限公司 驻极体骨导麦克风
CN111050253A (zh) * 2019-12-30 2020-04-21 歌尔科技有限公司 一种激励器及电子产品
CN114501257B (zh) * 2022-03-23 2024-02-09 歌尔股份有限公司 发声装置和电子设备

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8660292B2 (en) * 2011-01-05 2014-02-25 Aac Acoustic Technologies (Shenzhen) Co., Ltd. Multifunctional vibrator
CN104883650A (zh) * 2015-06-05 2015-09-02 歌尔声学股份有限公司 振动发声装置
CN104883649A (zh) * 2015-06-05 2015-09-02 歌尔声学股份有限公司 振动发声装置
CN106130304A (zh) * 2016-08-22 2016-11-16 歌尔股份有限公司 纵向振动马达
CN106658309A (zh) * 2016-11-23 2017-05-10 歌尔股份有限公司 振动发声装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04313999A (ja) * 1991-01-18 1992-11-05 Onkyo Corp 超磁歪振動子を使用したスピーカ
CN201134927Y (zh) * 2007-12-24 2008-10-15 瑞声声学科技(常州)有限公司 电声转换器
CN204741558U (zh) * 2015-06-23 2015-11-04 瑞声光电科技(常州)有限公司 扬声器
CN105101022B (zh) * 2015-08-25 2018-11-09 歌尔股份有限公司 振动发声装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8660292B2 (en) * 2011-01-05 2014-02-25 Aac Acoustic Technologies (Shenzhen) Co., Ltd. Multifunctional vibrator
CN104883650A (zh) * 2015-06-05 2015-09-02 歌尔声学股份有限公司 振动发声装置
CN104883649A (zh) * 2015-06-05 2015-09-02 歌尔声学股份有限公司 振动发声装置
CN106130304A (zh) * 2016-08-22 2016-11-16 歌尔股份有限公司 纵向振动马达
CN106658309A (zh) * 2016-11-23 2017-05-10 歌尔股份有限公司 振动发声装置

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109617356A (zh) * 2019-02-12 2019-04-12 共达电声股份有限公司 一种线性激励器
CN109617356B (zh) * 2019-02-12 2024-01-23 共达电声股份有限公司 一种线性激励器
CN112243188B (zh) * 2019-07-19 2023-04-14 歌尔股份有限公司 换能器磁路结构、换能器及其电子设备
CN112243188A (zh) * 2019-07-19 2021-01-19 歌尔股份有限公司 换能器磁路结构、换能器及其电子设备
CN112243183A (zh) * 2019-07-19 2021-01-19 歌尔股份有限公司 磁势扬声器及其电子设备
CN112243183B (zh) * 2019-07-19 2023-08-04 歌尔股份有限公司 磁势扬声器及其电子设备
CN113747318B (zh) * 2020-05-29 2024-04-30 歌尔股份有限公司 发声装置和电子设备
CN113747318A (zh) * 2020-05-29 2021-12-03 歌尔股份有限公司 发声装置和电子设备
CN112929799A (zh) * 2021-01-20 2021-06-08 武汉华星光电半导体显示技术有限公司 振动发声组件及显示装置
CN112929799B (zh) * 2021-01-20 2022-11-01 武汉华星光电半导体显示技术有限公司 振动发声组件及显示装置
CN114286266B (zh) * 2021-02-07 2023-08-29 歌尔股份有限公司 扬声器和电子设备
CN114286266A (zh) * 2021-02-07 2022-04-05 歌尔股份有限公司 扬声器和电子设备
CN113660590B (zh) * 2021-08-31 2024-03-08 歌尔股份有限公司 用于电子装置的发声器件及电子装置
CN113660590A (zh) * 2021-08-31 2021-11-16 歌尔股份有限公司 用于电子装置的发声器件及电子装置

Also Published As

Publication number Publication date
CN106658309B (zh) 2019-08-02
CN106658309A (zh) 2017-05-10

Similar Documents

Publication Publication Date Title
WO2018095038A1 (zh) 振动发声装置
US11240605B2 (en) Sounding device
US10003887B2 (en) Miniature sound generator
US9813821B1 (en) Miniature sound generator
CN206894886U (zh) 微型发声器
US8774448B2 (en) Speaker with elastic plate coupled to diaphragm
US9154884B2 (en) Electro-acoustic transducer
US9774955B2 (en) Speaker
TWI422240B (zh) 多功能微型喇叭
CN105491489B (zh) 具有振动功能和发声功能的多功能装置
US9071909B2 (en) Electromagnetic transducer
US9386375B2 (en) Miniature speaker
US8643236B2 (en) Multifunctional electromagnetic transducer
US20170034629A1 (en) Speaker
WO2020140544A1 (zh) 发声器件
KR20100122350A (ko) 다기능 마이크로 스피커
CN209267799U (zh) 发声装置以及电子设备
KR20090040952A (ko) 전자음향변환기
US9237390B2 (en) Electromagnetic transducer
WO2022143235A1 (zh) 扬声器及终端装置
US10182295B2 (en) Vibration diaphragm
CN108540908A (zh) 一种发声装置
US9843857B2 (en) Speaker box
US10827279B2 (en) Multi-function speaker
US10291988B2 (en) Vibration diaphragm

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 17874119

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 17874119

Country of ref document: EP

Kind code of ref document: A1