WO2022135125A1 - 扬声器模组及电子设备 - Google Patents

扬声器模组及电子设备 Download PDF

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Publication number
WO2022135125A1
WO2022135125A1 PCT/CN2021/135725 CN2021135725W WO2022135125A1 WO 2022135125 A1 WO2022135125 A1 WO 2022135125A1 CN 2021135725 W CN2021135725 W CN 2021135725W WO 2022135125 A1 WO2022135125 A1 WO 2022135125A1
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WIPO (PCT)
Prior art keywords
module
magnetic circuit
linear motor
cavity
housing
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PCT/CN2021/135725
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English (en)
French (fr)
Inventor
蔡晓东
刘松
侯燕燕
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歌尔股份有限公司
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Publication of WO2022135125A1 publication Critical patent/WO2022135125A1/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
    • 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
    • H04R9/06—Loudspeakers

Definitions

  • the utility model relates to the technical field of electro-acoustic equipment, in particular to a loudspeaker module and electronic equipment.
  • the performance improvement of the speaker module and motor is generally achieved by increasing the size of the product.
  • the battery, motherboard, and camera take up more and more space. This in turn requires that the size of the speaker module and the vibration motor cannot be increased or even reduced, thus creating a conflict with the demand for performance improvement.
  • a technical scheme of combining the speaker module and the vibration motor is proposed, that is, the speaker module and the vibration motor share a driving coil, and the diaphragm of the speaker module and the vibration motor are separated.
  • the vibrator vibrates in the same direction, which will lead to the fact that as long as the coil is energized, the speaker module and the vibration motor can only work at the same time due to the interaction and reaction between the coil and the magnetic circuit, so it cannot meet the diverse application scenarios of mobile phones.
  • the bell does not vibrate or only vibrates but does not ring, etc.
  • the low-frequency music signal below the resonance frequency of the vibration motor can be filtered in the form of signal filtering, the vibration of the vibration motor cannot be completely eliminated, and since the music signal basically has no low-frequency effect, the sound quality of the speaker is very poor.
  • the utility model aims to solve at least one of the technical problems existing in the prior art.
  • the present invention proposes a loudspeaker module, which has the advantages of being able to independently control the loudspeaker unit and the linear motor module, and having good sound-producing and vibration effects.
  • the utility model also proposes an electronic device with the above speaker module.
  • a loudspeaker module includes: a module housing with an installation cavity in the module housing; a loudspeaker unit, the loudspeaker unit is arranged in the installation cavity and connects the installation cavity It is divided into a front acoustic cavity and a rear acoustic cavity, and the speaker unit includes a magnetic circuit system; a linear motor module is arranged in the installation cavity, and the speaker unit and the linear motor module are arranged along the speaker.
  • the modules are stacked in the thickness direction, the linear motor module includes a casing, the casing is connected to the bottom wall of the module housing, and the magnetic circuit system is fixedly connected to the top of the casing.
  • the loudspeaker module of the embodiment of the present invention by stacking the loudspeaker unit and the linear motor module in the module housing, independent control of the loudspeaker unit and the linear motor module can be realized, and the loudspeaker unit and the linear motor module can be separately controlled.
  • the motor module inputs different electrical signals to work separately or synchronously without affecting each other, thereby improving the sound effect and vibration effect of the speaker module.
  • the magnetic circuit system includes: a central magnetic circuit part, the central magnetic circuit part includes a central magnetic steel and a central magnetic conducting plate covered on the central magnetic steel; a side magnetic circuit part, the side magnetic circuit part is arranged around the central magnetic circuit part, and the side magnetic circuit part comprises a side magnet steel and a side magnetic conducting plate covered on the side magnet steel, the side magnet steel and the side magnet The magnetic plate is spaced apart from the central magnetic steel and the central magnetic conducting plate to define a magnetic gap.
  • both ends of the side magnetic circuit portion in the longitudinal direction are flush with the longitudinal ends of the casing.
  • the housing is a piece of magnetically conductive material.
  • an assembly space is defined in the casing, and the linear motor module includes: a coil, the coil is disposed in the assembly space and fixed to the casing or the module casing
  • the vibrator assembly, the vibrator assembly is arranged in the assembly space, and the vibrator assembly includes a permanent magnet and a counterweight, and the coil is energized to drive the vibrator assembly to move in the horizontal direction; shrapnel assembly, the shrapnel assembly
  • the vibrator assembly is suspended in the assembly space, and the elastic sheet assembly has elastic deformation along the horizontal direction.
  • an installation groove is provided on the counterweight, and the permanent magnet is embedded in the installation groove.
  • the speaker unit further includes: a vibration system, the vibration system includes a diaphragm and a voice coil, one end of the voice coil is connected to the diaphragm, and the other end of the voice coil is connected to the diaphragm. into the magnetic gap of the magnetic circuit system.
  • the module housing includes an upper module shell and a lower module shell
  • the lower module shell includes a bottom wall, an annular side wall connected to the bottom wall, and an annular side wall connected to the bottom wall.
  • a partition wall in the space enclosed by the annular side wall, the partition wall is connected with the bottom wall and the annular side wall, and a ventilation hole is opened on the partition wall;
  • the edge portion of the diaphragm includes an upper surface and a Lower surface, the lower surface is sealingly connected to the annular side wall and the top surface of the partition wall, and the upper surface is sealingly connected to the upper shell of the module; the diaphragm and the upper shell of the module are connected.
  • a front acoustic cavity is formed between the diaphragms
  • a rear acoustic cavity is formed between the diaphragm and the upper casing of the module and the lower casing of the module
  • the partition wall separates the rear acoustic cavity into an assembly cavity close to the diaphragm and a cavity far away from the The buffer cavity of the diaphragm, and the magnetic circuit system is arranged in the assembly cavity.
  • the upper casing of the module and/or the lower casing of the module are metal parts; the position corresponding to the upper casing of the module and the edge of the diaphragm is provided with a direction toward the The concave portion is protruded from the edge portion, and the bottom surface of the concave portion is sealed with the upper surface of the edge portion.
  • the buffer cavity is filled with sound-absorbing particles
  • the partition wall is provided with an isolation mesh cloth covering the ventilation holes.
  • the module housing is provided with an air outlet communicating with the rear acoustic cavity, the air outlet is provided with an auxiliary diaphragm, and the outer side of the auxiliary diaphragm is provided with a protective cover.
  • the electronic device includes the speaker module according to the above-mentioned embodiment of the present invention.
  • the speaker unit and the linear motor module in the speaker module can be independently controlled respectively, so that the sound effect and vibration effect of the electronic device can be improved, and the user's experience can be improved. Use experience.
  • FIG. 1 is a schematic diagram of an exploded structure of a speaker module according to an embodiment of the present invention
  • FIG. 2 is a vertical cross-sectional view of a speaker module according to an embodiment of the present invention.
  • FIG. 3 is a schematic diagram of a partial structure of a speaker module according to an embodiment of the present invention.
  • FIG. 4 is an exploded view of a linear motor module according to an embodiment of the present invention.
  • FIG. 5 is an exploded view of a module housing according to an embodiment of the present invention.
  • FIG. 6 is a schematic diagram of a mating state of an auxiliary diaphragm, a protective cover and a module housing according to an embodiment of the present invention.
  • Module housing 1 installation cavity 1a, front acoustic cavity 1b, rear acoustic cavity 1c, assembly cavity 1d, buffer cavity 1e, air outlet 1f, module upper shell 11, lower recess 111, module lower shell 12, bottom wall 121, annular Side wall 122, partition wall 123, ventilation hole 123a, isolation mesh 13,
  • Magnetic circuit system 21 magnetic gap 21a, central magnetic circuit portion 211, central magnetic steel 2111, central magnetic conductive plate 2112, side magnetic circuit portion 212, side magnetic steel 2121, side magnetic conductive plate 2122,
  • Vibration system 22 diaphragm 221, voice coil 222, sound-absorbing particles 23, auxiliary diaphragm 24, protective cover 25,
  • Linear motor module 3 housing 31, assembly space 31a, coil 32, vibrator assembly 33, permanent magnet 331, counterweight 332, installation slot 332a, magnetically conductive magnet 333, elastic sheet assembly 34, iron core 35, magnetically conductive plate 36 .
  • the speaker module 100 according to the embodiment of the present invention will be described below with reference to FIGS. 1-6 , and the speaker module 100 may be used in an electronic device.
  • the module housing 1 may be provided with an installation cavity 1a, the speaker unit 2 is arranged in the installation cavity 1a and the installation cavity 1a is divided into a front acoustic cavity 1b and a rear acoustic cavity 1c, and the speaker unit 2 includes a magnetic circuit system 21.
  • the linear motor module 3 is arranged in the installation cavity 1a, and the speaker unit 2 and the linear motor module 3 can be stacked along the thickness direction of the speaker module 100 (up and down as shown in FIG. 2 and FIG. 3 ).
  • the linear motor module 3 includes The casing 31 , the casing 31 can be connected to the bottom wall 121 of the module housing 1 , and the magnetic circuit system 21 can be fixedly connected to the top of the casing 31 .
  • the speaker unit 2 and the linear motor module 3 are installed in the installation cavity 1a at the same time, and the speaker unit 2 and the linear motor module 3 are stacked in the up-down direction, wherein the speaker unit 2 can be arranged on the side of the linear motor module 3 above. Therefore, through the above arrangement, the speaker unit 2 and the linear motor module 3 can be stacked together, and when the speaker module 100 is working, the independent control of the speaker unit 2 and the linear motor module 3 can be realized, that is, the speaker unit 2 and the linear motor module 3 can be independently controlled. Inputting different electrical signals to the speaker unit 2 and the linear motor module 3 enables them to work separately or synchronously without affecting each other, thereby improving the sound production effect and vibration effect of the speaker module 100 .
  • the housing 31 of the linear motor module 3 may be a closed structure or a structure with one end open. As shown in FIG. 3 , the bottom end of the housing 31 of the linear motor module 3 is open, and the bottom of the housing 31 is connected with the bottom wall 121 of the module housing 1 to define a sealed space.
  • the speaker module 100 of the embodiment of the present invention by stacking the speaker unit 2 and the linear motor module 3 in the module housing 1, the independent control of the speaker unit 2 and the linear motor module 3 can be realized, that is, the speaker unit 2 and the linear motor module 3 can be independently controlled. Inputting different electrical signals to the speaker unit 2 and the linear motor module 3 enables them to work separately or synchronously without affecting each other, thereby improving the sound production effect and vibration effect of the speaker module 100 .
  • the magnetic circuit system 21 may include a central magnetic circuit portion 211 and a side magnetic circuit portion 212 , wherein the central magnetic circuit portion 211 may be connected to the top of the housing 31 .
  • the central magnetic circuit part 211 includes a central magnetic steel 2111 and a central magnetic conducting plate 2112 covered on the central magnetic steel 2111
  • the side magnetic circuit part 212 is arranged around the central magnetic circuit part 211
  • the side magnetic circuit part 212 includes the side magnetic steel 2121 and a side magnetic conductive plate 2122 covered on the side magnet 2121
  • the side magnetic steel 2121 and the side magnetic conductive plate 2122 are spaced apart from the central magnetic steel 2111 and the central magnetic conductive plate 2112 respectively to define a magnetic gap 21a.
  • the central magnetic steel 2111 may be formed in a ring shape, and the central magnetic steel 2111 may also include a plurality of sub-magnetic steels, and the plurality of sub-magnetic steels are connected end to end to form a ring shape.
  • the casing 31 can be a magnetic conductive material, so the casing 31 can be used as a magnetic conductive yoke of the central magnetic circuit part 211 , which can enhance the magnetic conductive effect and increase the magnetic field strength of the magnetic circuit system 21 .
  • the housing 31 may include a flat plate portion and a support portion, the flat plate portion extends in a horizontal direction, and the magnetic circuit system 21 is provided on the flat plate portion.
  • the support portion extends in the vertical direction, the top of the support portion is connected with the flat plate portion, and the bottom of the support portion is connected with the bottom wall 121 of the module housing 1 .
  • the flat plate portion may be a piece of magnetic conductive material.
  • the flat plate part and the support part can also be magnetic conductive material parts at the same time.
  • an assembly space 31 a may be defined in the housing 31
  • the linear motor module 3 may include a coil 32 , a vibrator assembly 33 and a spring plate assembly 34 , wherein the coil 32 It can be arranged in the assembly space 31a and fixed to the housing 31 or the module housing 1.
  • the vibrator assembly 33 is arranged in the assembly space 31a.
  • the vibrator assembly 33 can include a permanent magnet 331 and a counterweight 332. After the coil 32 is energized, the vibrator assembly is driven. 33 moves in the horizontal direction, and the elastic sheet assembly 34 can suspend the vibrator assembly 33 in the assembly space 31a, and the elastic sheet assembly 34 has elastic deformation along the horizontal direction.
  • the vibrator assembly 33 when the linear motor module 3 is working, an alternating current is passed into the coil 32, and under the action of the magnetic field force, the vibrator assembly 33 can be driven to move in the horizontal direction.
  • the opposite side walls are connected, and the vibrator assembly 33 drives the elastic plate assembly 34 to elastically deform during the movement. In this way, the vibrator assembly 33 reciprocates under the action of the elastic force of the elastic plate assembly 34 and the magnetic field force, so that a vibration sensation can be generated.
  • the coil 32 can be fixed on the bottom wall 121 of the module housing 1 , and the coil 32 can also be fixed on the top wall of the housing 31 .
  • the weight block 332 can be a tungsten steel block, so that the vibration sense of the vibrator assembly 33 can be well improved.
  • an installation groove 332a may be provided on the counterweight block 332, and the permanent magnet 331 may be embedded in the installation groove 332a.
  • a mounting groove 332 a is provided on the counterweight block 332 , and two permanent magnets 331 are embedded in the mounting groove 332 a.
  • the vibrator assembly 33 further includes a magnetic conducting magnet 333, the magnetizing direction of the magnetic conducting magnet 333 is perpendicular to the magnetizing direction of the permanent magnet 331, and the magnetizing magnet 333 is arranged between the two permanent magnets 331 and embedded in the installation slot 332a Inside.
  • the linear motor module 3 further includes an iron core 35 arranged in the center of the coil 32 and a magnetic conductive plate 36 arranged on the coil 32 , so that the BL value of the magnetic field can be increased, thereby improving the linear motor module. 3 vibrations.
  • both ends of the side magnetic circuit portion 212 in the longitudinal direction are flush with the longitudinal ends of the housing 31 , so that the linear motor module 3 can be realized.
  • the vibration intensity of the linear motor module 3 can be increased, thereby improving the vibration effect of the speaker module 100 .
  • the speaker unit 2 further includes a vibration system 22.
  • the vibration system 22 may include a diaphragm 221 and a voice coil 222.
  • One end of the voice coil 222 is connected to the diaphragm 221.
  • the other end of the ring 222 protrudes into the magnetic gap 21a.
  • an alternating current flows into the voice coil 222. Since one end of the voice coil 222 penetrates into the magnetic gap 21a, the voice coil 222 drives the diaphragm 221 to vibrate up and down under the action of the magnetic field force. , so that the effect of the vibrating membrane 221 vibrating and producing sound can be achieved.
  • the vibration system 22 may further include a centering auxiliary structure, one end of the centering auxiliary structure is fixed to the basin frame of the speaker unit 2, and the other end of the centering auxiliary structure is connected to the voice coil 222 or the vibration At least one of the membranes 221 and the like is connected, and when the vibration system 22 works, the centering auxiliary structure follows the voice coil 222 and the vibration membrane 221 to vibrate synchronously, which can stabilize the vibration system 22 and prevent rocking vibration, thereby preventing the occurrence of polarization. The phenomenon.
  • the module housing 1 may include a module upper shell 11 and a module lower shell 12
  • the module lower shell 12 includes a bottom wall 121 , and a bottom wall
  • the edge portion of the diaphragm 221 may include an upper surface and a lower surface, the lower surface is sealingly connected to the annular side wall 122 and the top surface of the partition wall 123 , and the upper surface is sealingly connected to the upper casing 11 of the module.
  • the front acoustic cavity 1b is formed between the diaphragm 221 and the upper casing 11 of the module, and the rear acoustic cavity 1c is formed between the diaphragm 221 and the upper casing 11 of the module and the lower casing 12 of the module.
  • the assembly cavity 1d of 221 and the buffer cavity 1e away from the diaphragm 221, the magnetic circuit system 21 is arranged in the assembly cavity 1d.
  • the module lower shell 12 includes a bottom wall 121 and an annular side wall 122 connected to the bottom wall 121 .
  • the module upper shell 11 cooperates with the bottom wall 121 and the annular side wall 122 to define an installation cavity 1a.
  • the housing 12 further includes a partition wall 123, which is respectively connected with the bottom wall 121 and the annular side wall 122 and partitions the mounting cavity 1a into an assembly cavity 1d and a buffer cavity 1e, wherein the speaker unit 2 and the linear motor module 3 can be arranged in the installed in the cavity 1a.
  • the edge of the diaphragm 221 is connected to the annular side wall 122 and the top surface of the partition wall 123, respectively, the front acoustic cavity 1b and the rear acoustic cavity 1c can be separated by the diaphragm 221 to prevent the front and rear acoustic waves from being short-circuited, and the speaker module 100 can be improved. sound quality.
  • the above arrangement can also increase the radiation area of the diaphragm 221 and improve the sound emission performance of the speaker module 100 .
  • the rear acoustic cavity 1c is sealed, the airflow will not enter the interior of the electronic product to cause resonance in the electronic product housing 31, thereby improving the use experience of the electronic product.
  • the buffer cavity 1e may be filled with sound-absorbing particles 23, and the partition wall 123 may be provided with an isolation mesh 13 covering the ventilation holes 123a, and the isolation mesh 13 can prevent the sound-absorbing particles 23 from entering the assembly.
  • the damage to the speaker unit 2 caused by the sound-absorbing particles 23 can be prevented.
  • the sound-absorbing particles 23 in the buffer cavity 1e can absorb the air molecules entering the buffer cavity 1e, and play the role of virtually increasing the volume of the rear sound cavity 1c, thereby improving the low-frequency performance of the speaker module 100.
  • the upper module shell 11 and/or the lower module shell 12 may be metal parts, and the upper module shell 11 and the edge portion of the diaphragm 221 are provided with protruding toward the edge portion at the position corresponding to the edge portion of the module upper shell 11 .
  • the lower concave portion 111 of the lower concave portion 111 is sealed with the upper surface of the edge portion.
  • the module upper shell 11 can be set as a metal piece
  • the module lower shell 12 can also be set as a metal piece
  • the module upper shell 11 and the module lower shell 12 can be set as a metal piece at the same time.
  • the module housing 1 is made of a metal material, it is convenient to provide screw holes on the module housing 1, which can facilitate the assembly between the speaker module 100 and the electronic device.
  • the module housing 1 may be provided with an air outlet 1f communicating with the rear acoustic cavity 1c, and an auxiliary diaphragm 24 may be provided at the air outlet 1f.
  • the outer side is provided with a protective cover 25, thereby forming a flexible rear acoustic cavity system, which can increase the volume and compliance of the rear acoustic cavity 1c, thereby improving the low frequency effect of the speaker module 100.
  • the electronic device includes the speaker module 100 according to the above-mentioned embodiment of the present invention.
  • the electronic device may be a mobile phone, a Pad, a notebook computer, and the like.
  • the electronic device of the embodiment of the present invention by arranging the above-mentioned speaker module 100, the speaker unit 2 and the linear motor module 3 in the speaker module 100 can be independently controlled respectively, so that the sound effect and vibration effect of the electronic device can be improved. , to improve the user experience.
  • the terms “installed”, “connected” and “connected” should be understood in a broad sense, for example, it may be a fixed connection or a connectable connection. Dismantling connection, or integral connection; it can be mechanical connection or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be internal communication between two components.
  • Dismantling connection, or integral connection it can be mechanical connection or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be internal communication between two components.

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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)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)

Abstract

本实用新型公开了一种扬声器模组及电子设备，扬声器模组包括模组外壳、扬声器单体和线性马达模块。模组外壳内设有安装腔，扬声器单体设在安装腔内并将安装腔分隔成前声腔和后声腔，扬声器单体包括磁路系统，线性马达模块设在安装腔内，扬声器单体和线性马达模块沿扬声器模组的厚度方向堆叠设置，线性马达模块包括壳体，壳体与模组外壳的底壁相连，磁路系统与壳体的顶部固定相连。根据本实用新型的扬声器模组，通过将扬声器单体和线性马达模块堆叠在模组外壳内，可以实现对扬声器单体和线性马达模块的独立控制，即可分别向扬声器单体和线性马达模块输入不同的电信号实现各自分别工作或同步工作而互不影响，提升扬声器模组的发声效果和振动效果。

Description

扬声器模组及电子设备 技术领域
本实用新型涉及电声设备技术领域，尤其是涉及一种扬声器模组及电子设备。
背景技术
随着消费电子产业特别是智能手机的迅猛发展，终端消费者对于设备使用体验的需求越来越高。除视觉外，对于听觉、触觉的体验需求更是逐步提升。在这种背景下，手机厂商对声学器件扬声器模组以及触觉反馈器件振动马达提出了更高的性能要求。
在传统的设计方案中，扬声器模组和马达的性能提升一般是通过增大产品尺寸来实现的，但是伴随着电子设备内部空间越来越紧凑，电池、主板、摄像头占用空间越来越大，这又要求扬声器模组及振动马达尺寸不能增加甚至还要减小，因此又与性能提升的需求之间产生冲突。
为解决上述问题，在相关技术中，提出了一种将扬声器模组与振动马达二合一的技术方案，即扬声器模组和振动马达共用一个驱动线圈，扬声器模组的振膜与振动马达的振子在同一方向振动，这就会导致只要线圈通电，由于线圈与磁路互为作用力与反作用力，扬声器模组和振动马达只能同时工作，因此无法满足手机多样化的应用场景，例如只响铃不振动或者只振动不响铃等情况。虽然可以采用信号滤波的形式把振动马达共振频率以下的低频音乐信号进行过滤，但是不能完全消除振动马达的振动，而且由于音乐信号基本无低频效果，从而使得扬声器的音质很差。
实用新型内容
本实用新型旨在至少解决现有技术中存在的技术问题之一。为此，本实用新型提出一种扬声器模组，所述扬声器模组具有能分别独立控制扬声器单体和线性马达模块、发声效果和振动效果好的优点。
本实用新型还提出了一种具有上述扬声器模组的电子设备。
根据本实用新型实施例的扬声器模组，包括：模组外壳，所述模组外壳内设有安装腔；扬声器单体，所述扬声器单体设在所述安装腔内并将所述安装腔分隔成前声腔和后声腔，所述扬声器单体包括磁路系统；线性马达模块，所述线性马达模块设在所述安装腔内，所述扬声器单体和所述线性马达模块沿所述扬声器模组的厚度方向堆叠设置，所述线性马达模块包括壳体，所述壳体与所述模组外壳的底壁相连，所述磁路系统与所述壳体的顶部固定相连。
根据本实用新型实施例的扬声器模组，通过将扬声器单体和线性马达模块堆叠在模组外壳内，可以实现对扬声器单体和线性马达模块的独立控制，即可分别向扬声器单体和线性马达模块输入不同的电信号实现各自分别工作或同步工作而互不影响，提升扬声器模组的发声效果和振动效果。
根据本实用新型的一些实施例，所述磁路系统包括：中心磁路部分，所述中心磁路部分包括中心磁钢和盖设于所述中心磁钢上的中心导磁板；边磁路部分，所述边磁路部分围绕所述中心磁路部分设置，所述边磁路部分包括边磁钢和盖设于所述边磁钢的边导磁板，所述边磁钢和边导磁板与所述中心磁钢和中心导磁板间隔设置以限定出磁间隙。
在本实用新型的一些实施例中，所述边磁路部分的长度方向的两端与所述壳体的长度方向两端平齐。
根据本实用新型的一些实施例，所述壳体为导磁材料件。
根据本实用新型的一些实施例，所述壳体内限定出装配空间，所述线性马达模块包括：线圈，所述线圈设于所述装配空间内并固定于所述壳体或所 述模组外壳；振子组件，所述振子组件设于所述装配空间内，所述振子组件包括永磁体和配重块，所述线圈通电后驱使所述振子组件沿水平方向移动；弹片组件，所述弹片组件将所述振子组件悬设于所述装配空间内，所述弹片组件具有沿水平方向的弹性形变。
在本实用新型的一些实施例中，所述配重块上设有安装槽，所述永磁体嵌设在所述安装槽内。
根据本实用新型的一些实施例，所述扬声器单体还包括：振动系统，所述振动系统包括振膜和音圈，所述音圈的一端与所述振膜相连，所述音圈的另一端伸入到所述磁路系统的磁间隙内。
在本实用新型的一些实施例中，所述模组外壳包括模组上壳和模组下壳，所述模组下壳包括底壁、与所述底壁连接的环形侧壁以及位于所述环形侧壁围成的空间内的分隔壁，所述分隔壁与所述底壁和所述环形侧壁连接，所述分隔壁上开设有通气孔；所述振膜的边缘部包括上表面和下表面，所述下表面密封连接于所述环形侧壁和所述分隔壁的顶面，所述上表面密封连接于所述模组上壳；所述振膜与所述模组上壳之间形成前声腔，所述振膜与所述模组上壳、模组下壳之间形成后声腔，所述分隔壁将所述后声腔分隔为靠近所述振膜的装配腔和远离所述振膜的缓冲腔，所述磁路系统设于所述装配腔。
在本实用新型的一些实施例中，所述模组上壳和/或所述模组下壳为金属件；所述模组上壳与所述振膜的边缘部对应的位置设有朝向所述边缘部凸出的下凹部，所述下凹部的底面与所述边缘部的上表面密封连接。
在本实用新型的一些实施例中，所述缓冲腔内填充有吸音颗粒，所述分隔壁上设有覆盖所述通气孔的隔离网布。
根据本实用新型的一些实施例，所述模组外壳上设有与所述后声腔连通的出气孔，所述出气孔处设有辅助振膜，所述辅助振膜的外侧设有保护罩。
根据本实用新型实施例的电子设备，包括根据本实用新型上述实施例的 扬声器模组。
根据本实用新型实施例的电子设备，通过设置上述扬声器模组，扬声器模组中的扬声器单体和线性马达模块可以实现分别独立控制，从而可以提升电子设备的发声效果和振动效果，提升用户的使用体验。
本实用新型的附加方面和优点将在下面的描述中部分给出，部分将从下面的描述中变得明显，或通过本实用新型的实践了解到。
附图说明
本实用新型的上述和/或附加的方面和优点从结合下面附图对实施例的描述中将变得明显和容易理解，其中：
图1是根据本实用新型一个实施例的扬声器模组的爆炸结构示意图；
图2是根据本实用新型一个实施例的扬声器模组的竖直剖面图；
图3是根据本实用新型一个实施例的扬声器模组的局部结构示意图；
图4是根据本实用新型一个实施例的线性马达模块的爆炸图；
图5是根据本实用新型一个实施例的模组外壳的爆炸图；
图6是根据本实用新型一个实施例的辅助振膜、保护罩和模组外壳的配合状态示意图。
附图标记：
扬声器模组100，
模组外壳1，安装腔1a，前声腔1b，后声腔1c，装配腔1d，缓冲腔1e，出气孔1f，模组上壳11，下凹部111，模组下壳12，底壁121，环形侧壁122，分隔壁123，通气孔123a，隔离网布13，
扬声器单体2，
磁路系统21，磁间隙21a，中心磁路部分211，中心磁钢2111，中心导磁板2112，边磁路部分212，边磁钢2121，边导磁板2122，
振动系统22，振膜221，音圈222，吸音颗粒23，辅助振膜24，保护罩25，
线性马达模块3，壳体31，装配空间31a，线圈32，振子组件33，永磁体331，配重块332，安装槽332a，导磁磁铁333，弹片组件34，铁芯35，导磁板36。
具体实施方式
下面详细描述本实用新型的实施例，所述实施例的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的组件或具有相同或类似功能的组件。下面通过参考附图描述的实施例是示例性的，仅用于解释本实用新型，而不能理解为对本实用新型的限制。
下面参考图1-图6描述根据本实用新型实施例的扬声器模组100，该扬声器模组100可以用于电子设备中。
其中，模组外壳1内可以设有安装腔1a，扬声器单体2设在安装腔1a内并将安装腔1a分隔成前声腔1b和后声腔1c，扬声器单体2包括磁路系统21。线性马达模块3设在安装腔1a内，扬声器单体2和线性马达模块3可以沿扬声器模组100的厚度方向(如图2和图3所示的上下方向)堆叠设置，线性马达模块3包括壳体31，壳体31可以与模组外壳1的底壁121相连，磁路系统21可以与壳体31的顶部固定相连。
具体而言，扬声器单体2和线性马达模块3同时安装在安装腔1a内，且扬声器单体2和线性马达模块3沿上下方向堆叠设置，其中扬声器单体2可以设在线性马达模块3的上方。由此，通过上述设置，可以将扬声器单体2和线性马达模块3叠放在一起，当扬声器模组100工作时，可以实现对扬声器单体2和线性马达模块3的独立控制，即可分别向扬声器单体2和线性马达模块3输入不同的电信号实现各自分别工作或同步工作而互不影响，提升扬声器模组100的发声效果和振动效果。
可选地，线性马达模块3的壳体31可以为封闭的结构，也可以为一端敞开的结构。如图3所示，线性马达模块3的壳体31的底端敞开，壳体31的底部与模组外壳1的底壁121相连以限定出密封的空间。
根据本实用新型实施例的扬声器模组100，通过将扬声器单体2和线性马达模块3堆叠在模组外壳1内，可以实现对扬声器单体2和线性马达模块3的独立控制，即可分别向扬声器单体2和线性马达模块3输入不同的电信号实现各自分别工作或同步工作而互不影响，提升扬声器模组100的发声效果和振动效果。
如图2-图3所示，根据本实用新型的一些实施例，磁路系统21可以包括中心磁路部分211和边磁路部分212，其中，中心磁路部分211可以与壳体31的顶部相连，中心磁路部分211包括中心磁钢2111和盖设于中心磁钢2111上的中心导磁板2112，边磁路部分212围绕中心磁路部分211设置，边磁路部分212包括边磁钢2121和盖设于边磁钢2121的边导磁板2122，边磁钢2121和边导磁板2122分别与中心磁钢2111和中心导磁板2112间隔设置以限定出磁间隙21a。
可选地，中心磁钢2111可以形成为环形，中心磁钢2111也可以包括多个子磁钢，多个子磁钢首尾相接形成环形。可选地，壳体31可以为导磁材料件，由此壳体31可以作为中心磁路部分211的导磁轭，可以增强导磁效果，提升磁路系统21的磁场强度
在本实用新型的一个具体示例中，壳体31可以包括平板部和支撑部，平板部沿水平方向延伸，磁路系统21设在平板部上。支撑部沿竖直方向延伸，支撑部的顶端与平板部相连，支撑部的底部与模组外壳1的底壁121相连。可选地，平板部可以为导磁材料件。当然，平板部和支撑部也可以同时为导磁材料件。
如图2-图3所示，根据本实用新型的一些实施例，壳体31内可以限定出装配空间31a，线性马达模块3可以包括线圈32、振子组件33和弹片组 件34，其中，线圈32可以设于装配空间31a内并固定于壳体31或模组外壳1，振子组件33设于装配空间31a内，振子组件33可以包括永磁体331和配重块332，线圈32通电后驱使振子组件33沿水平方向移动，弹片组件34可以将振子组件33悬设于装配空间31a内，弹片组件34具有沿水平方向的弹性形变。
具体而言，当线性马达模块3工作时，线圈32中通入交变电流，在磁场力的作用下，可以驱动振子组件33沿水平方向上移动，弹片组件34的两端分别与壳体31的相对侧壁相连，振子组件33在移动过程中带动弹片组件34发生弹性变形。由此，振子组件33在弹片组件34的弹性力和磁场力的作用下往复移动，从而可以产生振感。
可选地，线圈32可以固定在模组外壳1的底壁121上，线圈32也可以固定在壳体31的顶壁上。可选地，配重块332可以为钨钢块，由此可以很好的提升振子组件33的振感。可选地，可以在配重块332上设置安装槽332a，永磁体331可以嵌设在安装槽332a内。
在图3-图4所示的具体示例中，在配重块332上设有安装槽332a，永磁体331为两块并嵌设在安装槽332a内。其中，振子组件33还包括导磁磁铁333，导磁磁铁333的充磁方向与永磁体331的充磁方向垂直，导磁磁铁333设在两个永磁体331之间并嵌设在安装槽332a内。如图3所示，线性马达模块3还包括设在线圈32中心的铁芯35以及盖设在线圈32上的导磁板36，由此可以增大磁场的BL值，进而可以提升线性马达模块3的振感。
如图2-图3所示，在本实用新型的一个实施例中，边磁路部分212的长度方向的两端与壳体31的长度方向两端平齐，由此可以实现线性马达模块3尺寸的最大化，从而可以增大线性马达模块3的振动强度，进而可以提升扬声器模组100的振动效果。
如图3所示，在本实用新型的一些实施例中，扬声器单体2还包括振动系统22，振动系统22可以包括振膜221和音圈222，音圈222的一端与振 膜221相连，音圈222的另一端伸入到磁间隙21a内。具体而言，当扬声器单体2工作时，音圈222中通入交变电流，由于音圈222的一端深入到磁间隙21a内，音圈222在磁场力的作用下带动振膜221上下振动，由此可以实现振膜221振动发声的效果。
在本实用新型的一个具体示例中，振动系统22还可以包括定心辅助结构，定心辅助结构的一端与扬声器单体2的盆架固定，定心辅助结构的另一端与音圈222或振膜221等中的至少一个相连，当振动系统22工作时，定心辅助结构跟随音圈222和振膜221同步振动，可以起到稳定振动系统22和防止摇摆振动的作用，从而可以防止出现偏振的现象。
如图3和图5所示，在本实用新型的一些实施例中，模组外壳1可以包括模组上壳11和模组下壳12，模组下壳12包括底壁121、与底壁121连接的环形侧壁122以及位于环形侧壁122围成的空间内的分隔壁123，分隔壁123与底壁121和环形侧壁122连接，分隔壁123上开设有通气孔123a。振膜221的边缘部可以包括上表面和下表面，下表面密封连接于环形侧壁122和分隔壁123的顶面，上表面密封连接于模组上壳11。振膜221与模组上壳11之间形成前声腔1b，振膜221与模组上壳11、模组下壳12之间形成后声腔1c，分隔壁123将后声腔1c分隔为靠振膜221的装配腔1d和远离振膜221的缓冲腔1e，磁路系统21设于装配腔1d内。
具体而言，模组下壳12包括底壁121以及与底壁121连接的环形侧壁122，模组上壳11与底壁121和环形侧壁122配合可以限定出安装腔1a，模组下壳12还包括分隔壁123，分隔壁123分别与底壁121和环形侧壁122相连并将安装腔1a分隔成装配腔1d和缓冲腔1e，其中扬声器单体2和线性马达模块3可以设在安装腔1a内。其中，由于振膜221的边缘部分别连接于环形侧壁122和分隔壁123的顶面，由此可以通过振膜221分隔前声腔1b和后声腔1c，防止前后声波短路，提升扬声器模组100的音质。而且，上述设置还可以增大振膜221的辐射面积，提升扬声器模组100的发声性能。 此外，由于后声腔1c密封，气流不会进入电子产品内部引发电子产品壳体31内的共振，从而可以提升电子产品的使用体验。
可选地，如图2所示，缓冲腔1e内可以填充有吸音颗粒23，分隔壁123上可以设有覆盖通气孔123a的隔离网布13，隔离网布13可以防止吸音颗粒23进入到装配腔1d内，从而可以防止吸音颗粒23对扬声器单体2产生的伤害。缓冲腔1e内的吸音颗粒23可以吸附进入到缓冲腔1e内的空气分子，起到虚拟增大后声腔1c体积的作用，提升扬声器模组100的低频性能。
在本实用新型的一些实施例中，模组上壳11和/或模组下壳12可以为金属件，模组上壳11与振膜221的边缘部对应的位置设有朝向边缘部凸出的下凹部111，下凹部111的底面与边缘部的上表面密封连接。具体而言，可以将模组上壳11设置成金属件，也可以将模组下壳12设置成金属件，还可以将模组上壳11和模组下壳12同时设置成金属件，由此可以大大提升模组外壳1的结构强度，而且由于金属材料的导热性能比较好，由此还可以提升扬声器模组100的散热效果。此外，由于模组外壳1为金属材料件，从而可以方便在模组外壳1上设置螺钉孔，可以方便将扬声器模组100与电子设备之间进行装配。
如图6所示，根据本实用新型的一些实施例，模组外壳1上可以设有与后声腔1c连通的出气孔1f，出气孔1f处可以设有辅助振膜24，辅助振膜24的外侧设有保护罩25，由此可以形成柔性后声腔系统，可以增大后声腔1c的体积和顺性，从而可以提升扬声器模组100的低频效果。
根据本实用新型实施例的电子设备，包括根据本实用新型上述实施例的扬声器模组100。可选地，电子设备可以为手机、Pad和笔记本电脑等。
根据本实用新型实施例的电子设备，通过设置上述扬声器模组100，扬声器模组100中的扬声器单体2和线性马达模块3可以实现分别独立控制，从而可以提升电子设备的发声效果和振动效果，提升用户的使用体验。
在本实用新型的描述中，需要理解的是，术语“中心”、“纵向”、“横 向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”“内”、“外”、“顺时针”、“逆时针”、“轴向”、“径向”、“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本实用新型和简化描述，而不是指示或暗示所指的装置或组件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本实用新型的限制。此外，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。在本实用新型的描述中，除非另有说明，“多个”的含义是两个或两个以上。
在本实用新型的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个组件内部的连通。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本实用新型中的具体含义。
在本说明书的描述中，参考术语“一个实施例”、“一些实施例”、“示意性实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本实用新型的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不一定指的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任何的一个或多个实施例或示例中以合适的方式结合。
尽管已经示出和描述了本实用新型的实施例，本领域的普通技术人员可以理解：在不脱离本实用新型的原理和宗旨的情况下可以对这些实施例进行多种变化、修改、替换和变型，本实用新型的范围由权利要求及其等同物限定。

Claims (12)

  1. 一种扬声器模组，其特征在于，包括：
    模组外壳，所述模组外壳内设有安装腔；
    扬声器单体，所述扬声器单体设在所述安装腔内并将所述安装腔分隔成前声腔和后声腔，所述扬声器单体包括磁路系统；及
    线性马达模块，所述线性马达模块设在所述安装腔内，所述扬声器单体和所述线性马达模块沿所述扬声器模组的厚度方向堆叠设置，所述线性马达模块包括壳体，所述壳体与所述模组外壳的底壁相连，所述磁路系统与所述壳体的顶部固定相连。
  2. 根据权利要求1所述的扬声器模组，其特征在于，所述磁路系统包括：
    中心磁路部分，所述中心磁路部分包括中心磁钢和盖设于所述中心磁钢上的中心导磁板；
    边磁路部分，所述边磁路部分围绕所述中心磁路部分设置，所述边磁路部分包括边磁钢和盖设于所述边磁钢的边导磁板，所述边磁钢和边导磁板与所述中心磁钢和中心导磁板间隔设置以限定出磁间隙。
  3. 根据权利要求2所述的扬声器模组，其特征在于，所述边磁路部分的长度方向的两端与所述壳体的长度方向两端平齐。
  4. 根据权利要求1所述的扬声器模组，其特征在于，所述壳体为导磁材料件。
  5. 根据权利要求1所述的扬声器模组，其特征在于，所述壳体内限定出装配空间，所述线性马达模块包括：
    线圈，所述线圈设于所述装配空间内并固定于所述壳体或所述模组外壳；
    振子组件，所述振子组件设于所述装配空间内，所述振子组件包括永磁 体和配重块，所述线圈通电后驱使所述振子组件沿水平方向移动；
    弹片组件，所述弹片组件将所述振子组件悬设于所述装配空间内，所述弹片组件具有沿水平方向的弹性形变。
  6. 根据权利要求5所述的扬声器模组，其特征在于，所述配重块上设有安装槽，所述永磁体嵌设在所述安装槽内。
  7. 根据权利要求1所述的扬声器模组，其特征在于，所述扬声器单体还包括：振动系统，所述振动系统包括振膜和音圈，所述音圈的一端与所述振膜相连，所述音圈的另一端伸入到所述磁路系统的磁间隙内。
  8. 根据权利要求7所述的扬声器模组，其特征在于，所述模组外壳包括模组上壳和模组下壳，所述模组下壳包括底壁、与所述底壁连接的环形侧壁以及位于所述环形侧壁围成的空间内的分隔壁，所述分隔壁与所述底壁和所述环形侧壁连接，所述分隔壁上开设有通气孔；
    所述振膜的边缘部包括上表面和下表面，所述下表面密封连接于所述环形侧壁和所述分隔壁的顶面，所述上表面密封连接于所述模组上壳；
    所述振膜与所述模组上壳之间形成前声腔，所述振膜与所述模组上壳、模组下壳之间形成后声腔，所述分隔壁将所述后声腔分隔为靠近所述振膜的装配腔和远离所述振膜的缓冲腔，所述磁路系统设于所述装配腔。
  9. 根据权利要求8所述的扬声器模组，其特征在于，
    所述模组上壳和/或所述模组下壳为金属件；
    所述模组上壳与所述振膜的边缘部对应的位置设有朝向所述边缘部凸出的下凹部，所述下凹部的底面与所述边缘部的上表面密封连接。
  10. 根据权利要求8所述的扬声器模组，其特征在于，所述缓冲腔内填充有吸音颗粒，所述分隔壁上设有覆盖所述通气孔的隔离网布。
  11. 根据权利要求1-10中任一项所述的扬声器模组，其特征在于，所述模组外壳上设有与所述后声腔连通的出气孔，所述出气孔处设有辅助振膜，所述辅助振膜的外侧设有保护罩。
  12. 一种电子设备，其特征在于，包括根据权利要求1-11中任一项所述的扬声器模组。
PCT/CN2021/135725 2020-12-24 2021-12-06 扬声器模组及电子设备 WO2022135125A1 (zh)

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