WO2022135127A1 - 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
WO2022135127A1
WO2022135127A1 PCT/CN2021/135756 CN2021135756W WO2022135127A1 WO 2022135127 A1 WO2022135127 A1 WO 2022135127A1 CN 2021135756 W CN2021135756 W CN 2021135756W WO 2022135127 A1 WO2022135127 A1 WO 2022135127A1
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WO
WIPO (PCT)
Prior art keywords
module
magnetic circuit
diaphragm
casing
cavity
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Application number
PCT/CN2021/135756
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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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Application filed by 歌尔股份有限公司 filed Critical 歌尔股份有限公司
Publication of WO2022135127A1 publication Critical patent/WO2022135127A1/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, but as the internal space of electronic equipment becomes more and more compact, 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 compact structure and reduced occupied space on the premise of meeting the performance requirements.
  • the utility model also proposes an electronic device with the above speaker module.
  • a loudspeaker module includes: a module housing with a mounting cavity in the module housing and a mounting opening on the module housing; a loudspeaker unit, the loudspeaker unit is provided on The installation cavity is divided into a front acoustic cavity and a rear acoustic cavity, the speaker unit includes a magnetic circuit system, and the magnetic circuit system is provided with an installation slot that is arranged opposite to the installation opening; a linear motor A module, the linear motor module is embedded in the installation slot through the installation opening.
  • the speaker module of the embodiment of the first aspect of the present invention by setting the installation slot in the magnetic circuit system of the speaker unit, and the linear motor module is embedded in the installation slot, the overall structure of the speaker module can be made more compact, Thus, the electronic device can be made thinner. Moreover, the speaker unit and the linear motor module can be independently controlled respectively, which improves the use 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, the installation The groove is arranged on the central magnetic circuit part; the 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 cover arranged on the side magnet steel.
  • the side magnetic conductive plates are spaced apart from the central magnetic steel and the central magnetic conductive plate respectively to define a magnetic gap.
  • 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.
  • 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.
  • One end protrudes into the magnetic gap; the installation slot runs through the central magnetic circuit part, and the distance between the linear motor module and the diaphragm is not greater than the distance between the central magnetic circuit part and the diaphragm spacing between.
  • the central magnetic steel is a ring-shaped structure, or the central magnetic steel includes four elongated magnetic steels arranged around.
  • 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.
  • the front acoustic cavity is formed between the diaphragms
  • the 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 buffer cavity away from the vibrating film, 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 linear motor module includes a first casing and a second casing, the first casing and the second casing cooperate to define an assembly space, and the second casing includes A stop portion extending outward relative to the first housing; a portion of the central magnetic steel leaks outside the installation opening, and the stop portion is connected to the central magnetic steel.
  • the second casing completely closes the installation opening and the bottom wall of the second casing is flush with the outer peripheral wall of the module housing.
  • the linear motor module includes: a coil, the coil is arranged in the assembly space and fixed to the first housing or the second housing; a vibrator assembly, the The vibrator assembly is arranged in the assembly space, and the vibrator assembly includes a permanent magnet and a counterweight block. After the coil is energized, the vibrator assembly is driven to move in the horizontal direction; Suspended in the assembly space, the elastic sheet assembly has elastic deformation along the horizontal direction.
  • 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 structure of the speaker module is relatively compact and occupies less assembly space, so that the electronic device can be made thinner.
  • the speaker unit and the linear motor module in the speaker module can be independently controlled, so that the sound effect and vibration effect of the electronic device can be improved, and the user experience can be improved.
  • 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 the matching structure of the magnetic circuit system and the linear motor module according to an embodiment of the present invention
  • FIG. 5 is an exploded view of the matching structure of the magnetic circuit system and the linear motor module according to another embodiment of the present invention.
  • FIG. 6 is an exploded view of a linear motor module according to an embodiment of the present invention.
  • FIG. 7 is a schematic diagram of the matching state of an auxiliary diaphragm, a protective cover and a module housing according to an embodiment of the present invention.
  • FIG. 8 is an exploded view of a module housing according to an embodiment of the present invention.
  • Module housing 1 installation cavity 1a, installation opening 1b, front acoustic cavity 1c, rear acoustic cavity 1d, assembly cavity 1e, buffer cavity 1f, air outlet 1g, 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 installation slot 21a, central magnetic circuit portion 211, central magnetic steel 2111, long magnetic steel 2111a, central magnetic conductive plate 2112, side magnetic circuit portion 212, side magnetic steel 2121, side magnetic conductive plate 2122, Magnetic gap 21b,
  • Vibration system 22 diaphragm 221, voice coil 222, sound-absorbing particles 23, auxiliary diaphragm 24, protective cover 25,
  • Linear motor module 3 first casing 31 , second casing 32 , stopper 321 , coil 33 , vibrator assembly 34 , permanent magnet 341 , counterweight 342 , mounting slot 342 a , and elastic plate assembly 35 .
  • the speaker module 100 according to the embodiment of the present invention will be described below with reference to FIGS. 1-8 .
  • the speaker module 100 may be used in an electronic device.
  • a speaker module 100 includes a module housing 1 , a speaker unit 2 and a linear motor module 3 .
  • the module housing 1 may be provided with an installation cavity 1a, the module housing 1 may be provided with an installation opening 1b, and the speaker unit 2 may be arranged in the installation cavity 1a and divide the installation cavity 1a into a front acoustic cavity 1c and a rear acoustic cavity 1d
  • the speaker unit 2 includes a magnetic circuit system 21.
  • the magnetic circuit system 21 may be provided with an installation slot 21a that is opposite to the installation opening 1b, and the linear motor module 3 can be embedded in the installation slot 21a through the installation opening 1b.
  • the installation port 1b is communicated with the installation groove 21a provided in the magnetic circuit system 21.
  • the linear motor module 3 can be embedded in the installation groove 21a through the installation port 1b, so that it can be
  • the overall structure of the speaker module 100 is made more compact, the installation volume occupied is smaller, the installation space reserved for the speaker module 100 by the electronic device can be reduced, and the electronic device can be made thinner.
  • the speaker module 100 works, it can realize independent control of the speaker unit 2 and the linear motor module 3, that is, you can input different electrical signals to the speaker unit 2 and the linear motor module 3 respectively to work separately or synchronously. Without affecting each other, the use effect of the speaker module 100 is improved.
  • the whole of the speaker module 100 can be made
  • the structure is more compact, so that the electronic device can be made thinner.
  • the speaker unit 2 and the linear motor module 3 can be independently controlled respectively, so as to improve the use 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 includes a central magnetic steel 2111 and a cover disposed in the center
  • the central magnetic conducting plate 2112 on the magnetic steel 2111, the installation slot 21a can be set in the central magnetic circuit part 211, the side magnetic circuit part 212 is arranged around the central magnetic circuit part 211, and the side magnetic circuit part 212 includes the side magnetic steel 2121 and the cover arranged on the
  • the side magnetic conducting plates 2122 of the side magnets 2121, the side magnets 2121 and the side magnetic conducting plates 2122 are spaced apart from the center magnets 2111 and the central magnetizing plates 2112 respectively to define a magnetic gap 21b.
  • the installation slot 21a can be set at the center of the central magnetic circuit portion 211, so that the matching structure of the speaker unit 2 and the linear motor module 3 can be more symmetrical, and the structural stability 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 extends into the magnetic gap 21b, the mounting groove 21a penetrates the central magnetic circuit portion 211, and the distance between the linear motor module 3 and the diaphragm 221 is not greater than the distance between the central magnetic circuit portion 211 and the diaphragm 221 .
  • 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. It can be understood that, since the distance between the linear motor module 3 and the diaphragm 221 is less than or equal to the distance between the central magnetic circuit portion 211 and the diaphragm 221, the diaphragm 221 can be prevented from interacting with the linear motor module during vibration. 3 collision occurs, thereby ensuring that the diaphragm 221 can work normally.
  • the installation groove 21a may not penetrate the central magnetic circuit portion 211, as long as the linear motor module 3 can be embedded in the central magnetic circuit portion 211, and the present invention does not make any difference in the opening method of the installation groove 21a. specific restrictions.
  • 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 central magnetic steel 2111 may be a ring-shaped structure, or the central magnetic steel 2111 may also include four elongated magnetic steels 2111 a arranged around it.
  • the module housing 1 may include a module upper shell 11 and a module lower shell 12 , and the module lower shell 12 includes a bottom wall 121 , and a module connected to the bottom wall 121 .
  • the annular side wall 122 and the partition wall 123 located in the space enclosed by the annular side wall 122 are connected to the bottom wall 121 and the annular side wall 122, and the partition wall 123 is provided with a ventilation hole 123a.
  • 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.
  • a front acoustic cavity 1c is formed between the diaphragm 221 and the upper casing 11 of the module, and a rear acoustic cavity 1d 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 1e of 221 and the buffer cavity 1f away from the diaphragm 221, the magnetic circuit system 21 is arranged in the assembly cavity 1e.
  • 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 divides the mounting cavity 1a into an assembly cavity 1e and a buffer cavity 1f, wherein the speaker unit 2 and the linear motor module 3 can be arranged in the installed in the cavity 1a.
  • the edge portion 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 1c and the rear acoustic cavity 1d 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 1d is sealed, the airflow will not enter the interior of the electronic product to cause resonance in the housing of the electronic product, thereby improving the use experience of the electronic product.
  • the buffer cavity 1f 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 sound-absorbing particles 23 in the buffer cavity 1f can absorb the air molecules entering the buffer cavity 1f, and play the role of virtually increasing the volume of the rear sound cavity 1d, 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 a metal material, it is convenient to set screw holes on the module housing 1, and it is convenient to assemble the speaker module 100 and the electronic device.
  • the linear motor module 3 may include a first housing 31 and a second housing 32 , and the first housing 31 and the second housing 32 cooperate to define an assembly space , the second shell 32 includes a stop portion 321 extending outward relative to the first shell 31, a part of the central magnetic steel 2111 leaks out of the installation opening 1b, and the stop portion 321 is connected with the central magnetic steel 2111, so that the The matching structure between the linear motor module 3 and the central magnetic circuit part 211 is simpler.
  • the stopper portion 321 and the central magnetic steel 2111 may be pasted and fixed by an adhesive.
  • the second casing 32 can completely close the installation opening 1b and the bottom wall 121 of the second casing 32 is flush with the outer peripheral wall of the module housing 1 . Therefore, through the above arrangement, not only can the linear motor module 3 be lifted.
  • the sealing effect of the matching structure with the speaker unit 2 can also make the overall structure of the speaker module 100 more compact.
  • the linear motor module 3 includes: a coil 33 , a vibrator assembly 34 and a spring plate assembly 35 , wherein the coil 33 is arranged in the assembly space and fixed to the first housing 31 or In the second housing 32, the vibrator assembly 34 is arranged in the assembly space.
  • the vibrator assembly 34 includes a permanent magnet 341 and a counterweight block 342. After the coil 33 is energized, the vibrator assembly 34 can be driven to move in the horizontal direction, and the spring plate assembly 35 suspends the vibrator assembly 34. Set in the assembly space, the elastic sheet assembly 35 has elastic deformation along the horizontal direction.
  • the vibrator assembly 34 when the linear motor module 3 is working, the coil 33 is fed with current, and under the action of the magnetic field force, the vibrator assembly 34 can be driven to move in the horizontal direction, and one end of the elastic plate assembly 35 is connected to the first housing 31, The other end of the shrapnel assembly 35 is connected to the vibrator assembly 34, and the vibrator assembly 34 drives the shrapnel assembly 35 to elastically deform during the movement. In this way, the vibrator assembly 34 reciprocates under the action of the elastic force of the elastic plate assembly 35 and the magnetic field force, so that a vibration sensation can be generated.
  • the weight block 342 can be a tungsten steel block, so that the vibration sense of the vibrator assembly 34 can be well improved.
  • an assembly groove 342a may be provided on the counterweight block 342, and the permanent magnet 341 may be embedded in the assembly groove 342a.
  • the first housing 31 of the linear motor module 3 is provided above the second housing 32 , the bottom of the first housing 31 is connected with the second housing 32 , and the second housing 32 is connected to the second housing 32 . Both ends of the length direction of 32 are respectively provided with abutting portions 321 extending outward relative to the first housing 31 .
  • the coil 33 is fixed on the inner wall of the second casing 32 , and the elastic sheet assemblies 35 are respectively disposed on the left and right side walls of the first casing 31 and are respectively connected with the vibrator assembly 34 .
  • the vibrator assembly 34 includes a permanent magnet 341 and a counterweight block 342, the counterweight block 342 is a tungsten steel block, an assembly groove 342a is provided in the center of the counterweight block 342, and the permanent magnet 341 is embedded in the assembly groove 342a.
  • the module housing 1 may be provided with an air outlet 1g communicating with the rear acoustic cavity 1d, and an auxiliary diaphragm 24 may be provided at the air outlet 1g.
  • a protective cover 25 is provided on the outside, thereby forming a flexible rear acoustic cavity system, which can increase the volume and compliance of the rear acoustic cavity 1d, 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 structure of the speaker module 100 is relatively compact and occupies less assembly space, so that the electronic device can be made thinner.
  • the speaker unit 2 and the linear motor module 3 in the speaker module 100 can be independently controlled, so that the sound production effect and vibration effect of the electronic device can be improved, and the user experience can be improved.
  • 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)

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，模组外壳上设有安装口，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***，磁路***设有与安装口正对设置的安装槽，线性马达模块通过安装口嵌设在安装槽内。根据本实用新型的扬声器模组，通过在扬声器单体的磁路***设置安装槽，线性马达模块嵌设在安装槽内，由此可以使扬声器模组的整体结构更加紧凑，从而可以使电子设备做的更薄。而且，扬声器单体与线性马达模块可以分别实现独立控制，提升扬声器模组的使用效果。

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结构紧凑、可以在满足使用性能需求的前提下减小占用空间的优点。
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，所述模组外壳上设有安装口；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***，所述磁路***设有与所述安装口正对设置的安装槽；线性马达模块，所述线性马达模块通过所述安装口嵌设在所述安装槽内。
根据本实用新型第一方面实施例的扬声器模组，通过在扬声器单体的磁路***设置安装槽，线性马达模块嵌设在安装槽内，由此可以使扬声器模组的整体结构更加紧凑，从而可以使电子设备做的更薄。而且，扬声器单体与线性马达模块可以分别实现独立控制，提升扬声器模组的使用效果。
根据本实用新型的一些实施例，所述磁路***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，所述安装槽设于所述中心磁路部分；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分别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，所述扬声器单体还包括：振动***，所述振动***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间隙内；所述安装槽贯穿所述中心磁路部分，所述线性马达模块与所述振膜之间的间距不大于所述中心磁路部分与所述振膜之间的间距。
在本实用新型的一些实施例中，所述中心磁钢为环形结构，或者所述中 心磁钢包括环绕设置的四块长条形磁钢。
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所述前声腔，所述振膜与所述模组上壳、模组下壳之间形成所述后声腔，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***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。
在本实用新型的一些实施例中，所述线性马达模块包括第一壳体和第二壳体，所述第一壳体和第二壳体配合限定出装配空间，所述第二壳体包括相对所述第一壳体向外延伸的止抵部；所述中心磁钢的部分外漏于所述安装口，所述止抵部与所述中心磁钢相连。
在本实用新型的一些实施例中，所述第二壳体完全封闭所述安装口且所述第二壳体的底壁与所述模组外壳的外周壁平齐。
在本实用新型的一些实施例中，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第一壳体或所述第二壳体；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。
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。
根据本实用新型第二方面实施例的电子设备，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，扬声器模组的结构比较紧凑，占用的装配空间较少，从而可以使电子设备做的更薄。而且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***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磁路***与线性马达模块的配合结构的***图；
图5是根据本实用新型另一个实施例的磁路***与线性马达模块的配合结构的***图；
图6是根据本实用新型一个实施例的线性马达模块的***图；
图7是根据本实用新型一个实施例的辅助振膜、保护罩与模组外壳的配合状态示意图；
图8是根据本实用新型一个实施例的模组外壳的***图。
附图标记：
扬声器模组100，
模组外壳1，安装腔1a，安装口1b，前声腔1c，后声腔1d，装配腔1e，缓冲腔1f，出气孔1g，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***21，安装槽21a，中心磁路部分211，中心磁钢2111，长条形磁钢2111a，中心导磁板2112，边磁路部分212，边磁钢2121，边导磁板2122，磁间隙21b，
振动***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，第一壳体31，第二壳体32，止抵部321，线圈33，振子组件34，永磁体341，配重块342，装配槽342a，弹片组件35。
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8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。
如图1-图2所示，根据本实用新型实施例的扬声器模组100，包括：模组外壳1、扬声器单体2和线性马达模块3。
其中，模组外壳1内可以设有安装腔1a，模组外壳1上设有安装口1b，扬声器单体2可以设在安装腔1a内并将安装腔1a分隔成前声腔1c和后声 腔1d，扬声器单体2包括磁路***21，磁路***21可以设有与安装口1b正对设置的安装槽21a，线性马达模块3可以通过安装口1b嵌设在安装槽21a内。
具体而言，安装口1b与磁路***21内设置的安装槽21a相连通，当扬声器模组100进行装配时，线性马达模块3可以通过安装口1b嵌设在安装槽21a内，由此可以使扬声器模组100的整体结构更加紧凑，占用的安装体积更小，可以减小电子设备为扬声器模组100预留的安装空间，可以使电子设备做的更薄。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的使用效果。
根据本实用新型实施例的扬声器模组100，通过在扬声器单体2的磁路***21设置安装槽21a，线性马达模块3嵌设在安装槽21a内，由此可以使扬声器模组100的整体结构更加紧凑，从而可以使电子设备做的更薄。而且，扬声器单体2与线性马达模块3可以分别实现独立控制，提升扬声器模组100的使用效果。
如图3所示，根据本实用新型的一些实施例，磁路***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包括中心磁钢2111和盖设于中心磁钢2111上的中心导磁板2112，安装槽21a可以设于中心磁路部分211，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21b。可选地，安装槽21a可以设置在中心磁路部分211的中心位置，由此可以使扬声器单体2与线性马达模块3的配合结构对称性更好，可以提升扬声器模组100的结构平稳性。
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 ***22，振动***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21b内，安装槽21a贯穿中心磁路部分211，线性马达模块3与振膜221之间的间距不大于中心磁路部分211与振膜221之间的间距。
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21b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。可以理解的是，由于线性马达模块3与振膜221之间的间距小于或等于中心磁路部分211与振膜221之间的间距，由此可以防止振膜221在振动过程中与线性马达模块3发生碰撞，从而可以确保振膜221能够正常的工作。
需要进行说明的是，安装槽21a也可以不贯穿中心磁路部分211，只要能够将线性马达模块3嵌设在中心磁路部分211内即可，本实用新型对安装槽21a的开设方式不做具体限制。
在本实用新型的一个具体示例中，振动***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***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***22和防止摇摆振动的作用，从而可以防止出现偏振的现象。
可选地，如图4-图5所示，中心磁钢2111可以为环形结构，或者中心磁钢2111也可以包括环绕设置的四块长条形磁钢2111a。
如图8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1c，振膜221与模组上壳11、模组下壳12之间形成后声腔1d，分隔壁123将后声腔1d分隔为靠振膜221的装配腔1e和远离振膜221的缓冲腔1f，磁路***21设于装配腔1e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1e和缓冲腔1f，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1c和后声腔1d，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1d密封，气流不会进入电子产品内部引发电子产品壳体内的共振，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1f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1e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1f内的吸音颗粒23可以吸附进入到缓冲腔1f内的空气分子，起到虚拟增大后声腔1d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3所示，在本实用新型的一些实施例中，线性马达模块3可以包括第一壳体31和第二壳体32，第一壳体31和第二壳体32配合限定出装配空间，第二壳体32包括相对第一壳体31向外延伸的止抵部321，中心磁钢2111的部分外漏于安装口1b，止抵部321与中心磁钢2111相连，由此可以使线性马达模块3与中心磁路部分211之间的配合结构更加简单。可选地，止抵部321与中心磁钢2111之间可以通过粘结剂粘贴固定。
可选地，第二壳体32可以完全封闭安装口1b且第二壳体32的底壁121与模组外壳1的外周壁平齐，由此，通过上述设置，不仅可以提升线性马达模块3与扬声器单体2之间的配合结构的密封效果，而且，还可以使扬声器模组100的整体结构更加紧凑。
如图6所示，根据本实用新型的一些实施例，线性马达模块3包括：线圈33、振子组件34和弹片组件35，其中，线圈33设于装配空间内并固定于第一壳体31或第二壳体32，振子组件34设于装配空间内，振子组件34包括永磁体341和配重块342，线圈33通电后可驱使振子组件34沿水平方向移动，弹片组件35将振子组件34悬设于装配空间内，弹片组件35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33中通入电流，在磁场力的作用下，可以驱动振子组件34沿水平方向上移动，弹片组件35的一端与第一壳体31相连，弹片组件35的另一端与振子组件34相连，振子组件34在移动过程中带动弹片组件35发生弹性变形。由此，振子组件34在弹片组件35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，配重块342可以为钨钢块，由此可以很好的提升振子组件34的振感。可选地，可以在配重块342上设置装配槽342a，永磁体341可以嵌设在装配槽342a内。
在图3中所示的具体示例中，线性马达模块3的第一壳体31设在第二 壳体32的上方，第一壳体31的底部与第二壳体32相连，第二壳体32的长度方向的两端分别设有相对第一壳体31向外延伸的止抵部321，止抵部321朝向靠近中心磁钢2111的方向弯折延伸并与中心磁钢2111连接。其中，线圈33固定在第二壳体32的内壁上，弹片组件35分别设在第一壳体31的左右侧壁上且分别与振子组件34相连。振子组件34包括永磁体341和配重块342，配重块342为钨钢块，配重块342的中心位置设有装配槽342a，永磁体341嵌设在装配槽342a内。
如图7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1d连通的出气孔1g，出气孔1g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***，可以增大后声腔1d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的结构比较紧凑，占用的装配空间较少，从而可以使电子设备做的更薄。而且扬声器模组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，所述模组外壳上设有安装口；
    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***，所述磁路***设有与所述安装口正对设置的安装槽；及
    线性马达模块，所述线性马达模块通过所述安装口嵌设在所述安装槽内。
  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***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，所述安装槽设于所述中心磁路部分；
    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分别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，所述扬声器单体还包括：振动***，所述振动***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间隙内；
    所述安装槽贯穿所述中心磁路部分，所述线性马达模块与所述振膜之间的间距不大于所述中心磁路部分与所述振膜之间的间距。
  4. 根据权利要求3所述的扬声器模组，其特征在于，所述中心磁钢为环形结构，或者所述中心磁钢包括环绕设置的四块长条形磁钢。
  5. 根据权利要求3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所述前声腔，所述振膜与所述模组上壳、模组下壳之间形成所述后声腔，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***设于所述装配腔。
  6. 根据权利要求5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。
  7. 根据权利要求5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。
  8. 根据权利要求2所述的扬声器模组，其特征在于，所述线性马达模块包括第一壳体和第二壳体，所述第一壳体和所述第二壳体配合限定出装配空间，所述第二壳体包括相对所述第一壳体向外延伸的止抵部；
    所述中心磁钢的部分外漏于所述安装口，所述止抵部与所述中心磁钢相连。
  9. 根据权利要求8所述的扬声器模组，其特征在于，所述第二壳体完全封闭所述安装口且所述第二壳体的底壁与所述模组外壳的外周壁平齐。
  10. 根据权利要求8所述的扬声器模组，其特征在于，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第一壳体或所述第二壳体；
    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。
  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1-9中任一项所述的扬声器模组。
PCT/CN2021/135756 2020-12-24 2021-12-06 扬声器模组及电子设备 WO2022135127A1 (zh)

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