WO2020062697A1 - 扬声器模组及移动终端 - Google Patents

扬声器模组及移动终端 Download PDF

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Publication number
WO2020062697A1
WO2020062697A1 PCT/CN2018/125708 CN2018125708W WO2020062697A1 WO 2020062697 A1 WO2020062697 A1 WO 2020062697A1 CN 2018125708 W CN2018125708 W CN 2018125708W WO 2020062697 A1 WO2020062697 A1 WO 2020062697A1
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WIPO (PCT)
Prior art keywords
cavity
ring
wall
sound
speaker module
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Ceased
Application number
PCT/CN2018/125708
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English (en)
French (fr)
Inventor
李承伟
高远
李振军
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Goertek Inc
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Goertek Inc
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Filing date
Publication date
Application filed by Goertek Inc filed Critical Goertek Inc
Publication of WO2020062697A1 publication Critical patent/WO2020062697A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; 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-acoustics, in particular to a speaker module and a mobile terminal.
  • mobile terminals such as mobile phones and tablet computers
  • ultra-thinness or miniaturization resulting in smaller and smaller installation spaces for speaker modules, thereby increasing the volume or thickness of speaker modules. It's getting smaller.
  • how to improve the acoustic performance of the speaker module in a limited space has become a problem that must be solved.
  • the main purpose of the utility model is to propose a speaker module, which aims to solve the technical problem of low acoustic performance of the existing speaker module.
  • a speaker module including:
  • a casing having a receiving cavity therein;
  • a speaker unit installed in the receiving cavity and isolating the receiving cavity into a front acoustic cavity and a rear acoustic cavity;
  • a ring-shaped spacer is installed on the rear acoustic cavity and is arranged on the peripheral side of the speaker unit.
  • the ring-shaped spacer isolates the rear acoustic cavity into a vibration cavity located inside the ring-shaped spacer and on the side
  • the sound-absorbing cavity on the outside of the ring-shaped spacer is provided in the vibration cavity, and the sound-absorbing cavity is used to fill sound-absorbing material.
  • the ring-shaped spacer is combined with the shell to form two of the sound-absorbing cavities, and the two sound-absorbing cavities are respectively located on opposite sides of the speaker unit.
  • the ventilation structure is provided at two locations corresponding to the two sound absorption chambers.
  • the annular spacer includes an annular partition
  • the ventilation structure includes a plurality of ventilation holes opened on the annular partition
  • the ring-shaped spacer includes a ring-shaped partition frame
  • the ventilation structure includes a vent opening provided on the ring-shaped partition frame and a ventilation member installed on the air-port of the ring-shaped partition frame.
  • the annular partition is provided as a metal plate; or
  • the breather is integrally injection-molded with the annular partition frame.
  • a retaining wall structure is provided on the housing at a position corresponding to the annular spacer, and the retaining wall structure is configured to clamp and fix at least part of the annular spacer.
  • the casing includes a front cover, a middle casing, and a rear cover.
  • the middle casing is provided with a single mounting hole, and the speaker unit is installed in the single mounting hole.
  • the middle shell and the front cover collectively surround the front acoustic cavity, and the speaker unit, the middle shell, the rear cover, and the front cover collectively surround the rear acoustic cavity.
  • one of the middle shell and the back cover is provided with a first barrier wall and a second barrier wall in a direction close to the other, and the first barrier wall and the second barrier wall are spaced apart from each other;
  • the first barrier wall and the second barrier wall constitute the barrier wall structure, and the annular spacer is snapped between the first barrier wall and the second barrier wall.
  • first retaining wall and the second retaining wall are both arranged in a ring shape;
  • the first retaining wall and the second retaining wall both extend along the setting direction of the annular spacer and extend a preset length;
  • a plurality of the first blocking walls are provided at intervals in the circumferential direction of the annular spacer, and / or a plurality of the second blocking walls are provided at intervals in the circumferential direction of the annular spacer.
  • a first guiding structure is provided at the free end of the first retaining wall, and / or a second guiding structure is provided at the free end of the second retaining wall.
  • the first guide structure includes a first guide surface, the first guide surface is provided at a free end of a side of the first blocking wall facing the second blocking wall, and the first guiding surface is The inclined wall extends away from the second blocking wall; and / or
  • the second guiding structure includes a second guiding surface provided at a free end of the second blocking wall facing a side surface of the first blocking wall, and the second guiding surface is far from the first
  • the direction of a retaining wall extends obliquely.
  • the utility model also provides a mobile terminal including a speaker module.
  • the speaker module includes:
  • a casing having a receiving cavity therein;
  • a speaker unit installed in the receiving cavity and isolating the receiving cavity into a front acoustic cavity and a rear acoustic cavity;
  • a ring-shaped spacer is installed on the rear acoustic cavity and is arranged on the peripheral side of the speaker unit.
  • the ring-shaped spacer isolates the rear acoustic cavity into a vibration chamber located inside the ring-shaped spacer and the vibration cavity.
  • the sound-absorbing cavity on the outside of the ring-shaped spacer is provided in the vibration cavity, and the sound-absorbing cavity is used to fill sound-absorbing material.
  • the speaker module of the present utility model is provided with a ring-shaped spacer to isolate the rear acoustic cavity into a vibration cavity and a sound-absorbing cavity, and the sound-absorbing cavity is filled with a sound-absorbing material, thereby improving the acoustic performance of the speaker module.
  • locating the sound-absorbing cavity ring on the peripheral side of the speaker unit can increase the utilization rate of the sound-absorbing material, thereby improving the sound-absorbing effect of the sound-absorbing material, and thus increasing the effective volume of the sound-absorbing cavity, so that it can be implemented in a limited space.
  • the acoustic performance of the speaker module is further improved.
  • the speaker module of the utility model has high production efficiency, a large effective volume of the sound absorption cavity, and excellent acoustic performance.
  • FIG. 1 is a schematic diagram of an explosion structure of a speaker module according to an embodiment of the present invention
  • FIG. 2 is a schematic structural diagram of a ring-shaped spacer in FIG. 1;
  • FIG. 3 is a schematic diagram of the internal structure of the speaker module in FIG. 1;
  • FIG. 4 is a partially enlarged view at A in FIG. 3; FIG.
  • FIG. 5 is a schematic cross-sectional structure diagram of the speaker module in FIG. 4;
  • FIG. 6 is a partially enlarged view of a portion B in FIG. 5.
  • the directional indication is only used to explain in a specific posture (such as the drawing (Shown)
  • a specific posture such as the drawing (Shown)
  • the relative positional relationship, motion, etc. of the components under the direction if the specific posture changes, the directionality indication will change accordingly.
  • the utility model proposes a speaker module.
  • the speaker module 100 includes:
  • a casing 10 having a receiving cavity 50 therein;
  • the speaker unit 20 is installed in the receiving cavity 50 and isolates the receiving cavity 50 into a front acoustic cavity 51 and a rear acoustic cavity 52;
  • a ring-shaped spacer 30 is installed on the rear acoustic cavity 52 and is arranged on the peripheral side of the speaker unit 20.
  • the ring-shaped spacer 30 isolates the rear acoustic cavity 52 into a vibration cavity 521 located inside the ring-shaped spacer 30 and a ring-shaped spacer.
  • the sound absorption cavity 522 outside the 30, the ring-shaped spacer 30 has a ventilation structure connecting the sound absorption cavity 522 and the vibration cavity 521, the speaker unit 20 is installed in the vibration cavity 521, and the sound absorption cavity 522 is used for filling sound absorption material.
  • the speaker unit 20 is a speaker, which includes a vibration system 21 and a magnetic circuit system 22, wherein the vibration system 21 includes a diaphragm 211 and a voice coil 212.
  • the ring-shaped spacer 30 is a separate ventilation block member.
  • the speaker module 100 of the present invention can improve the performance of the speaker module 100 by providing a ring-shaped spacer 30 to isolate the rear acoustic cavity 52 into a vibration cavity 521 and a sound absorption cavity 522, and filling the sound absorption cavity 522 with sound-absorbing materials. Acoustic performance.
  • arranging the sound absorption cavity 522 on the peripheral side of the speaker unit 20 can improve the utilization rate of the sound absorption material, thereby improving the sound absorption effect of the sound absorption material, and thereby increasing the effective volume of the sound absorption cavity 522, which can be achieved in
  • the acoustic performance of the speaker module 100 is further improved in a limited space.
  • the miniaturization design of the speaker module 100 can also be realized.
  • the assembling process between the ventilation isolation member and the housing 10 can be simplified, and the production efficiency of the speaker module 100 can be improved.
  • the speaker module 100 of the present invention has high production efficiency, a large effective volume of the sound absorption cavity 522, and excellent acoustic performance.
  • the ring-shaped spacer 30 is combined with the casing 10 to form two sound-absorbing cavities 522, and the two sound-absorbing cavities 522 are respectively provided on opposite sides of the speaker unit 20. .
  • the structure of the speaker module 100 can also be simplified, which is beneficial to reducing the volume of the speaker module 100.
  • the ring-shaped spacer 30 is disposed close to the side wall of the housing 10 to form Two sound-absorbing cavities 522.
  • the sound-absorbing materials filled in the two sound-absorbing cavities 522 may be the same or different.
  • the ventilation structure is provided at two locations corresponding to the two sound absorption chambers 522 respectively.
  • the structure of the ring-shaped spacer 30 can be simplified, processing and manufacturing are facilitated, and the structural strength of the ring-shaped spacer 30 can be ensured.
  • the ventilation structure may also be provided throughout the annular spacer 30.
  • the ring-shaped spacer 30 may be provided in other rings such as a circular ring, a square ring, or an elliptical ring, which is not limited in the present invention.
  • the ring-shaped spacer 30 is provided in a square ring shape or a square-like ring shape, which can be easily matched with the speaker unit 20, thereby making use of the limited space in the housing 10.
  • the ring-shaped spacer 30 may be set as a closed ring or a ring with an opening.
  • the sound absorbing material includes sound absorbing particles, such as zeolite particles.
  • the ring-shaped spacer 30 includes a ring-shaped partition plate 31, and the ventilation structure includes a plurality of ventilation holes 311 formed on the ring-shaped partition plate 31.
  • the rear sound cavity 52 can be separated into the vibration cavity 521 and the sound absorption cavity 522 by providing the annular partition 31, and the sound absorption cavity 522 and the vibration cavity 521 can be connected by providing the ventilation hole 311.
  • the ring-shaped spacer 30 can be made simple in structure and convenient to manufacture.
  • the ventilation structure should only allow gas to pass, but not sound-absorbing materials and the like, that is, the ventilation structure has the characteristics of a ventilation barrier. Therefore, when the sound absorbing material is a sound absorbing particle, the size of the sound absorbing particle should be larger than the size of the vent hole 311.
  • the vent hole 311 is provided corresponding to two sound-absorbing cavities 522.
  • the annular partition plate 31 is provided with a plurality of ventilation holes 311 corresponding to one of the sound absorption cavities 522, and is also provided with a plurality of ventilation holes 311 corresponding to the other sound absorption cavity 522.
  • the plurality of ventilation holes 311 provided corresponding to the sound absorption cavity 522 are evenly distributed, or are distributed according to a preset rule. In this way, the sound absorption effect can be improved.
  • the plurality of vent holes 311 provided in the sound-absorbing cavity 522 are arranged in N rows * M columns, and the spacing between the rows is equal, and the spacing between the columns is also equal.
  • the plurality of vent holes 311 provided corresponding to the sound absorption cavity 522 are arranged in N rows, and the vent holes 311 between adjacent rows are staggered.
  • the ventilation holes 311 may be provided all over the annular partition 31.
  • the annular partition plate 31 is configured as a metal plate.
  • the annular partition plate 31 may be injection-molded, may also be formed by bending a stamped part, or may be formed by bending a profile.
  • the material of the annular partition plate 31 may also be set to other non-metallic materials.
  • the annular partition plate 31 may be a plastic plate and injection molded.
  • the ring-shaped spacer 30 includes a ring-shaped partition frame, and the ventilation structure includes a ventilation opening opened on the ring-shaped partition frame and a ventilation hole installed on the ring-shaped partition frame. Pieces. In this way, by arranging the air-permeable member on the ring bulkhead, it is convenient to install the air-permeable member, which can save costs and facilitate mass production.
  • the ventilation port may be provided with two groups, each group of ventilation ports includes a plurality of ventilation ports, and the two groups of ventilation ports are respectively corresponding to two sound-absorbing chambers 522, and each group of ventilation ports is provided with a ventilation member.
  • the ventilation port may be provided with two groups, each group of ventilation ports includes a plurality of ventilation ports, and the two groups of ventilation ports are respectively provided corresponding to two sound absorption chambers 522, and each ventilation port is provided with a ventilation member.
  • the air vents may also be provided as one with the ring bulkhead extending; or, the air vents may also be provided along the circumferential direction of the ring bulkhead and spread throughout the ring bulkhead; correspondingly, ventilation is provided Pieces.
  • the annular partition frame may be a metal frame.
  • the annular partition frame may be injection-molded, may also be formed by stamping parts bending, and may also be formed by profile bending.
  • the frame may also be provided with other non-metallic materials.
  • the annular partition frame may be a plastic frame and injection molded.
  • the air-permeable member is integrally injection-molded with the annular partition frame.
  • the connection strength that is, the firmness of the coupling
  • the connection strength of the air-permeable member and the annular partition frame can be increased, so that the durability of the annular spacer 30 can be enhanced.
  • the air-permeable member and the ring bulkhead may also be connected by double-sided adhesive, or other methods, such as other gluing methods, or ultrasonic welding methods, or hot-melt methods, etc., which are different here.
  • double-sided adhesive or other methods, such as other gluing methods, or ultrasonic welding methods, or hot-melt methods, etc., which are different here.
  • the air-permeable member in order to improve the firmness of the combination of the air-permeable member and the ring bulkhead and reduce the risk of the air-permeable member detaching from the ring bulkhead, the air-permeable member may be provided on the side of the ring bulkhead near the sound-absorbing cavity 522. In order to increase the volume of the sound absorbing cavity 522 and further improve the acoustic performance of the speaker module 100, the air-permeable member may be disposed on a side of the ring bulkhead near the vibration cavity 521. The above two design methods can be selected according to actual needs.
  • the ring-shaped bulkhead may be set as two sub-frames spliced together, and the air-permeable member is sandwiched between the two sub-frames.
  • the air-permeable member may be a non-woven fabric, a mesh fabric, a nylon woven mesh or a metal mesh, or a filter paper, or a DuPont paper, or a coated paper, or a textured paper; but It is not limited to this, as long as it is made of a breathable material or a breathable form, the purpose of the ventilation barrier can be achieved.
  • a retaining wall structure may be provided on the housing, and the wall structure may be used to clamp and fix the ring-shaped spacer.
  • the casing 10 includes a front cover 11, a middle casing 12, and a rear cover 13.
  • the middle casing 12 is provided with a single mounting hole 121 and the speaker unit. 20 is mounted in the unit mounting hole 121, the speaker unit 20, the middle shell 12 and the front cover 11 collectively surround the front acoustic cavity 51, and the speaker unit 20, the middle shell 12, the rear cover 13 and the front cover 11 jointly surround ⁇ ⁇ ⁇ 52 ⁇ After the acoustic cavity 52.
  • the front cover 11 is disposed opposite to the sound emitting side of the speaker unit 20 (that is, the side where the diaphragm 211 is provided), and the rear cover 13 and the sound emitting side of the speaker unit 20 ( That is, the side on which the diaphragm 211 is provided is disposed opposite to each other.
  • the front cover 11, the middle case 12 and the rear cover 13 are combined to form a receiving cavity 50 for receiving components such as the speaker unit 20.
  • the middle shell 12 is also provided with a through hole 124, which is arranged side by side with the single mounting hole 121.
  • the through hole 124 is used to form the rear acoustic cavity 52.
  • one of the middle case 12 and the rear cover 13 is provided with a first blocking wall 122 and a second blocking wall 123 protruding toward the other, and the first blocking wall 122 is spaced apart from the second blocking wall 123, and the annular spacer 30 is latched between the first blocking wall 122 and the second blocking wall 123.
  • the annular spacer 30 can be fixed in the rear acoustic cavity 52; moreover, the above-mentioned structure is simple and the assembly is convenient.
  • the annular spacer 30 can be directly inserted between the first blocking wall 122 and the second blocking wall 123.
  • the width between the first blocking wall 122 and the second blocking wall 123 is equal to, or slightly larger than, or slightly smaller than the thickness of the annular spacer 30 to improve the assembly stability of the annular spacer 30.
  • first blocking wall 122 and the second blocking wall 123 there are many structural forms and combinations of the first blocking wall 122 and the second blocking wall 123, including but not limited to the following embodiments.
  • the first blocking wall 122 and the second blocking wall 123 both extend along the setting direction of the annular spacer 30 and extend a predetermined length.
  • the preset length can be set according to the size of the casing 10 and considering the assembly stability of the annular spacer 30. That is, the first blocking wall 122 and the second blocking wall 123 both extend a certain length to effectively fix the annular spacer 30.
  • the structures of the first blocking wall 122 and the second blocking wall 123 are simple, convenient to manufacture, time-saving and material-saving.
  • the first blocking wall 122 and the second blocking wall 123 are both arranged in a plate shape.
  • first blocking wall 122 and the second blocking wall 123 are both arranged in a ring shape.
  • first blocking wall 122 and the second blocking wall 123 are both arranged in a ring plate shape.
  • a plurality of the first barrier walls 122 are provided at intervals in the circumferential direction of the annular spacer 30, and / or, the A plurality of second blocking walls 123 are provided at intervals in the circumferential direction of the annular spacer 30.
  • a plurality of the first blocking walls 122 are arranged at intervals in the ring setting direction of the ring-shaped spacer 30, and the second blocking wall 123 is set in a ring shape;
  • a plurality of second blocking walls 123 are arranged at intervals in the circumferential direction of the annular spacer 30; or the first blocking walls 122 are arranged at intervals in the circumferential direction of the annular spacer 30, and
  • a plurality of second blocking walls 123 are provided at intervals in the circumferential direction of the annular spacer 30.
  • the retaining wall may be provided in a plate shape, a column shape, or a block shape.
  • a free end of the first blocking wall 122 is provided with a first guiding structure, and / or, The free end of the second blocking wall 123 is provided with a second guiding structure.
  • the free end of the barrier wall refers to an end of the barrier wall away from the middle shell 12 / rear cover 13 connected to the barrier wall.
  • a first guide structure is provided only at the free end of the first blocking wall 122.
  • a second guiding structure may be provided only at the free end of the second blocking wall 123; or, a first guiding structure may be provided at the free end of the first blocking wall 122, and The second end of the two blocking walls 123 is provided with a second guiding structure.
  • the guide structure may be a guide surface formed based on the retaining wall or a separate guide member.
  • the first guide structure includes a first guide surface 1221, and the first guide surface 1221 is provided on the first blocking wall 122 facing the second blocking wall 123. On the free end of the side surface, the first guide surface 1221 extends obliquely in a direction away from the second blocking wall 123. In this way, the structure of the first guiding structure can be simplified, costs can be reduced, and mass production can be facilitated.
  • the second guiding structure when the second end of the second blocking wall 123 is provided with a second guiding structure, optionally, the second guiding structure includes a second guiding surface, and the second guiding surface is provided on the second blocking surface.
  • the free end of the wall 123 facing the side surface of the first blocking wall 122, and the second guide surface is arranged to extend obliquely in a direction away from the first blocking wall 122.
  • the two ends of the ring-shaped spacer 30 abut against the middle shell 12 and the rear cover 13 respectively, so that the rear acoustic cavity 52 is divided into a vibration cavity 521 and a sound-absorbing cavity 522, and the sound-absorbing material is prevented from passing through two of the ring-shaped spacer 30 The end side enters the vibration cavity 521.
  • the first blocking wall 122 and the second blocking wall 123 are disposed on the middle case 12 and are protruded in a direction close to the rear cover 13.
  • the first blocking wall 122 and the second blocking wall 123 constitute a blocking wall structure.
  • first blocking wall 122 and the second blocking wall 123 are integrally injection-molded with the middle shell 12. In this way, the structural stability of the first blocking wall 122 and the second blocking wall 123 can be enhanced.
  • the rear cover 13 is provided with an elastic gasket at a position corresponding to the ring-shaped spacer 30, and the ring-shaped spacer 30 stops elastically.
  • the elastic spacer may also be provided as a part of the annular spacer 30, that is, the annular spacer 30 may further include an elastic spacer, and the elastic spacer is disposed at the end of the annular partition 31 or the annular partition frame.
  • the ring-shaped spacer 30 may also be fixed by forming a ring-shaped limiting groove on the back cover 13 and / or the middle shell 12, which need not be described in detail here.
  • the casing 10 may also be provided in other structural forms.
  • the casing 10 includes an upper cover and a lower cover, and the lower cover and the upper cover are combined to form a receiving cavity 50.
  • at least one of the lower cover and the upper cover includes a side wall
  • the upper cover is a plate-like structure
  • the lower cover includes a bottom wall and the side wall
  • the upper cover is connected to the side wall of the lower cover to form RECEPTION CAVITY 50.
  • the speaker unit 20 and the upper cover surround a front acoustic cavity 51.
  • the speaker unit 20, the lower cover and the upper cover together form a rear acoustic cavity 52 for improving low-frequency acoustic performance.
  • a first blocking wall 122 and a second blocking wall 123 are provided on the upper cover or the lower cover to fix the annular spacer 30.
  • the upper cover and / or the lower cover are provided with annular limiting grooves to fix the annular spacer 30.
  • the present invention also proposes a mobile terminal.
  • the mobile terminal includes a speaker module.
  • the specific structure of the speaker module 100 refers to the above embodiments. All the technical solutions of the embodiments have at least all the beneficial effects brought by the technical solutions of the foregoing embodiments, and will not be repeated one by one here.
  • the mobile terminals include, but are not limited to, MP3, MP4, MP5, mobile phones, and tablet computers.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Telephone Set Structure (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)

Abstract

本发明公开一种扬声器模组及移动终端，其中，扬声器模组包括：外壳，所述外壳内具有收容腔；扬声器单体，安装于所述收容腔，并将所述收容腔隔离成前声腔和后声腔；以及环形隔离件，安装于所述后声腔、并环设于所述扬声器单体的周侧，所述环形隔离件将所述后声腔隔离成位于所述环形隔离件内侧的振动腔及位于所述环形隔离件外侧的吸音腔，所述环形隔离件具有连通所述吸音腔与所述振动腔的通气结构，所述扬声器单体设于所述振动腔，所述吸音腔用于填充吸音材料。本发明扬声器模组生产效率较高，吸音腔有效作用体积大，声学性能优良。

Description

扬声器模组及移动终端 技术领域
本实用新型涉及电声技术领域，特别涉及一种扬声器模组及移动终端。
背景技术
随着移动互联网时代的到来，移动终端的数量不断上升，而高品质的音乐功能是移动终端的重要功能之一。因此，用于播放声音的扬声器模组被大量应用到移动终端之中。
相关技术中，移动终端，比如手机、平板电脑等，越来越追求超薄化、或超小化，致使扬声器模组的安装空间也越来越小，从而使得扬声器模组的体积、或厚度也越来越小。在这样的背景下，如何在有限空间内提高扬声器模组的声学性能成为一必须要解决的问题。
实用新型内容
本实用新型的主要目的是提出一种扬声器模组，旨在解决现有扬声器模组声学性能较低的技术问题。
为实现上述目的，本实用新型提出一种扬声器模组，包括：
外壳，所述外壳内具有收容腔；
扬声器单体，安装于所述收容腔，并将所述收容腔隔离成前声腔和后声腔；以及
环形隔离件，安装于所述后声腔、并环设于所述扬声器单体的周侧，所述环形隔离件将所述后声腔隔离成位于所述环形隔离件内侧的振动腔及位于所述环形隔离件外侧的吸音腔，所述扬声器单体设于所述振动腔，所述吸音腔用于填充吸音材料，所述环形隔离件具有连通所述吸音腔与所述振动腔的通气结构。
可选地，所述环形隔离件与所述外壳组配以形成两个所述吸音腔，两个所述吸音腔分别位于所述扬声器单体的相对的两侧。
可选地，所述通气结构对应两个所述吸音腔设置有两处。
可选地，所述环形隔离件包括环形隔板，所述通气结构包括开设于所述环形隔板上的多个通气孔；或者
所述环形隔离件包括环形隔框，所述通气结构包括开设于所述环形隔框上的通气口及安装于所述环形隔框的通气口的透气件。
可选地，所述环形隔板设置为金属板；或者
所述透气件与所述环形隔框一体注塑成型。
可选地，所述外壳上对应所述环形隔离件的位置设置有挡壁结构，所述挡壁结构被配置为将至少部分所述环形隔离件夹持固定。
可选地，所述外壳包括前盖、中壳及后盖，所述中壳上开设有单体安装孔，所述扬声器单体安装于所述单体安装孔，所述扬声器单体、所述中壳及所述前盖共同围成所述前声腔，所述扬声器单体、所述中壳、所述后盖及所述前盖共同围成所述后声腔。
可选地，所述中壳和所述后盖其中之一向靠近另一的方向凸设有第一挡壁和第二挡壁，所述第一挡壁与第二挡壁间隔设置；所述第一挡壁和所述第二挡壁构成所述挡壁结构所述环形隔离件卡接于所述第一挡壁与第二挡壁之间。
可选地，所述第一挡壁和第二挡壁均设置为环形；或者
所述第一挡壁和第二挡壁均沿所述环形隔离件的环设方向延伸、并延伸预设长度；或者
所述第一挡壁在所述环形隔离件的环设方向上间隔设置有多个，和/或，所述第二挡壁在所述环形隔离件的环设方向上间隔设置有多个。
可选地，所述第一挡壁的自由端设有第一导向结构，和/或，所述第二挡壁的自由端设有第二导向结构。
可选地，所述第一导向结构包括第一导向面，所述第一导向面设于所述第一挡壁的朝向所述第二挡壁的侧面的自由端，所述第一导向面向远离所述第二挡壁的方向倾斜延伸设置；和/或
所述第二导向结构包括第二导向面，所述第二导向面设于所述第二挡壁的朝向所述第一挡壁的侧面的自由端，所述第二导向面向远离所述第一挡壁的方向倾斜延伸设置。本实用新型还提出一种移动终端，包括扬声器模组。 扬声器模组包括：
外壳，所述外壳内具有收容腔；
扬声器单体，安装于所述收容腔，并将所述收容腔隔离成前声腔和后声腔；以及
环形隔离件，安装于所述后声腔、并环设于所述扬声器单体的周侧，所述环形隔离件将所述后声腔隔离成位于所述环形隔离件内侧的振动腔及位于所述环形隔离件外侧的吸音腔，所述扬声器单体设于所述振动腔，所述吸音腔用于填充吸音材料，所述环形隔离件具有连通所述吸音腔与所述振动腔的通气结构。
本实用新型扬声器模组，通过设置环形隔离件以将后声腔隔离成振动腔和吸音腔，并在吸音腔内填充吸音材料，从而可改善扬声器模组的声学性能。而且，将吸音腔环设于扬声器单体的周侧，可提高吸音材料的利用率，从而可提高吸音材料的吸音效果，从而可增大吸音腔的有效作用体积，从而可实现在有限空间内进一步地改善扬声器模组的声学性能。此外，通过设置一独立的环形隔离件，可简化通气隔离件与外壳之间的装配过程，从而可提高扬声器模组的生产效率。故，本实用新型扬声器模组生产效率较高，吸音腔有效作用体积大，声学性能优良。
附图说明
为了更清楚地说明本实用新型实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本实用新型的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图示出的结构获得其他的附图。
图1为本实用新型扬声器模组一实施例的爆炸结构示意图；
图2为图1中环形隔离件的结构示意图；
图3为图1中扬声器模组的内部结构示意图；
图4为图3中A处的局部放大图；
图5为图4中扬声器模组的剖面结构示意图；
图6为图5中B处的局部放大图。
附图标号说明：
标号 名称 标号 名称
100 扬声器模组 211 振膜
10 外壳 212 音圈
11 前盖 22 磁路系统
12 中壳 30 环形隔离件
121 单体安装孔 31 环形隔板
122 第一挡壁 311 通气孔
1221 第一导向面 50 收容腔
123 第二挡壁 51 前声腔
124 通孔 52 后声腔
13 后盖 521 振动腔
20 扬声器单体 522 吸音腔
21 振动系统    
本实用新型目的的实现、功能特点及优点将结合实施例，参照附图做进一步说明。
具体实施方式
下面将结合本实用新型实施例中的附图，对本实用新型实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本实用新型的一部分实施例，而不是全部的实施例。基于本实用新型中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本实用新型保护的范围。
需要说明，若本实用新型实施例中有涉及方向性指示(诸如上、下、左、右、前、后……)，则该方向性指示仅用于解释在某一特定姿态(如附图所示)下各部件之间的相对位置关系、运动情况等，如果该特定姿态发生改变时，则该方向性指示也相应地随之改变。
另外，若本实用新型实施例中有涉及“第一”、“第二”等的描述，则该 “第一”、“第二”等的描述仅用于描述目的，而不能理解为指示或暗示其相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。另外，全文中出现的“和/或”的含义为，包括三个并列的方案，以“A和/或B”为例，包括A方案，或B方案，或A和B同时满足的方案。另外，各个实施例之间的技术方案可以相互结合，但是必须是以本领域普通技术人员能够实现为基础，当技术方案的结合出现相互矛盾或无法实现时应当认为这种技术方案的结合不存在，也不在本实用新型要求的保护范围之内。
本实用新型提出一种扬声器模组。
在本实用新型一实施例中，如图1至图6所示，所述扬声器模组100包括：
外壳10，所述外壳10内具有收容腔50；
扬声器单体20，安装于收容腔50，并将收容腔50隔离成前声腔51和后声腔52；以及
环形隔离件30，安装于后声腔52、并环设于扬声器单体20的周侧，所述环形隔离件30将后声腔52隔离成位于环形隔离件30内侧的振动腔521及位于环形隔离件30外侧的吸音腔522，所述环形隔离件30具有连通吸音腔522与振动腔521的通气结构，所述扬声器单体20安装于振动腔521，所述吸音腔522用于填充吸音材料。
具体的，扬声器单体20为扬声器，其包括振动系统21和磁路系统22；其中，所述振动系统21包括振膜211和音圈212。环形隔离件30为一独立的通气阻物部件。
可以理解，本实用新型扬声器模组100，通过设置环形隔离件30以将后声腔52隔离成振动腔521和吸音腔522，并在吸音腔522内填充吸音材料，从而可改善扬声器模组100的声学性能。而且，将吸音腔522环设于扬声器单体20的周侧，可提高吸音材料的利用率，从而可提高吸音材料的吸音效果，从而可增大吸音腔522的有效作用体积，从而可实现在有限空间内进一步地改善扬声器模组100的声学性能。从另一方面讲，也可实现扬声器模组100的小型化设计。
此外，通过设置一独立的环形隔离件30，可简化通气隔离部件与外壳10之间的装配过程，从而可提高扬声器模组100的生产效率。
故，本实用新型扬声器模组100生产效率较高，吸音腔522有效作用体积大，声学性能优良。
进一步地，如图3至图6所示，所述环形隔离件30与外壳10组配以形成两个吸音腔522，两个所述吸音腔522分别设于扬声器单体20的相对的两侧。如此，在确保扬声器模组100的声学性能的同时，也可简化扬声器模组100的结构，有利于减小扬声器模组100的体积。
具体的，如图3所示，在所述扬声器单体20的另外两侧(即与吸音腔522相邻的两侧)，所述环形隔离件30紧靠外壳10的侧壁设置，以形成两吸音腔522。
特别地，所述两个吸音腔522内填充的吸音材料可以相同，也可以不同。
进一步地，如图2所示，所述通气结构分别对应两个所述吸音腔522设置有两处。如此，可简化环形隔离件30的结构，便于加工制作，并可确保环形隔离件30的结构强度。
当然，所述通气结构也可遍布环形隔离件30设置。
在具体实施例中，所述环形隔离件30可以设置为圆环形、方环形、或椭圆环形等其他环形，对此，本实用新型不做限定。
可选地，所述环形隔离件30设置为方环形或类方环形，可便于与扬声器单体20进行配合，从而可有利于利用外壳10内的有限空间。
在具体实施例中，所述环形隔离件30既可以设置为封闭的环形，也可设置为具有开口的环形。
在具体实施例中，所述吸音材料包括吸音颗粒，比如沸石颗粒等。
进一步地，如图2所示，所述环形隔离件30包括环形隔板31，所述通气结构包括开设于环形隔板31上的多个通气孔311。如此，通过设置环形隔板31可实现将后声腔52隔离成振动腔521和吸音腔522，通过设置通气孔311，可实现连通吸音腔522与振动腔521。而且，通过上述结构设置，可使得环形隔离件30结构简单、制作方便。
可以理解，所述通气结构应该仅允许气体通过，而不允许吸音材料等通过，即通气结构具有通气阻物的特性。故，当吸音材料为吸音颗粒时，吸音 颗粒的尺寸应当大于通气孔311的尺寸。
在本实施例中，如图2所示，所述通气孔311对应两个吸音腔522设置。具体的，所述环形隔板31上对应其中一吸音腔522设置有多个通气孔311，对应另一吸音腔522也设置有多个通气孔311。如此，不仅可保证环形隔板31的结构强度，而且还可降低环形隔板31的加工难度，提高生产效率。
进一步地，如图2所示，对应吸音腔522设置的多个通气孔311均匀分布，或者按预设规律分布。如此，可提高吸音效果。
可选地，对应吸音腔522设置的多个通气孔311呈N行*M列排布，各行之间的间距相等，各列之间的间距也相等。
可选地，对应吸音腔522设置的多个通气孔311排布有N行，相邻行之间的通气孔311交错设置。
特别地，在其他实施例中，所述通气孔311也可遍布环形隔板31设置。
在本实施例中，所述环形隔板31设置为金属板。
具体的，所述环形隔板31可注塑成型，也可为冲压件折弯成型，还可为型材折弯成型等。
在其他实施例中，所述环形隔板31的材质也可设置为其他非金属材料，比如，所述环形隔板31可以为塑料板，注塑成型。
在所述环形隔离件30的第二实施例中，所述环形隔离件30包括环形隔框，所述通气结构包括开设于环形隔框上的通气口及安装于环形隔框的通气口的透气件。如此，通过将透气件设置在环形隔框上，可便于安装透气件，能节省成本，利于批量生产。
在该实施例中，所述通气口可设置有两个，该两通气口分别对应两个吸音腔522设置，每一通气口上均安装有一透气件。或者，所述通气口可设置有两组，每组通气口均包括多个通气口，且该两组通气口分别对应两个吸音腔522设置，每组通气口均安装有一透气件。或者，所述通气口可设置有两组，每组通气口均包括多个通气口，且该两组通气口分别对应两个吸音腔522设置，每一通气口均安装有一透气件。当然，所述通气口还可随环形隔框延伸、而设置为一个；或者，所述通气口还可沿环形隔框的周向方向设置有多个、并遍布环形隔框；并对应设置透气件。
在该实施例中，所述环形隔框可以为金属框，此时，环形隔框可注塑成 型，也可为冲压件折弯成型、还可为型材折弯成型等；当然，所述环形隔框也可设置为其他非金属材料，比如，所述环形隔框可以为塑料框，注塑成型。
在该实施例中，具体的，所述透气件与环形隔框一体注塑成型。如此，可增大透气件与环形隔框的连接强度(即结合的牢固程度)，从而可增强环形隔离件30的耐用性。
当然，在该实施例中，所述透气件与环形隔框还可通过双面胶连接，或者其他方式，比如其他胶合方式、或超声波焊接方式、或热熔方式等，连接，在此不一一赘述。
在该实施例中，为了提高透气件与环形隔框结合的牢固程度，降低透气件自环形隔框上脱离的风险，所述透气件可设于环形隔框的靠近吸音腔522的一侧。而为了增大吸音腔522的体积，进一步地改善扬声器模组100的声学性能，所述透气件可设于环形隔框的靠近振动腔521的一侧。以上两种设计方式，可根据实际需求进行选择。当然，为了进一步地降低透气件自环形隔框上脱离的风险，可将环形隔框设置为两相互拼接的子框，将透气件夹设于该两子框之间。
在该实施例中，所述透气件既可为无纺布、或网布、或尼龙编织网或金属网等，也可为滤纸、或杜邦纸、或淋膜纸、或网纹纸；但不限于此，只要为透气材质制成或透气形式即可，即可实现通气阻物的目的即可。
进一步地，为了简化环形隔离件30与外壳的装配，并且提高装配的稳定性，优选的，可以在外壳上设置挡壁结构，该挡壁结构可以用于将环形隔离件夹持固定。
例如，具体地，如图1至图6所示，所述外壳10包括前盖11、中壳12及后盖13，所述中壳12上开设有单体安装孔121，所述扬声器单体20安装于单体安装孔121，所述扬声器单体20、中壳12及前盖11共同围成前声腔51，所述扬声器单体20、中壳12、后盖13及前盖11共同围成后声腔52。
需要说明的是，本实用新型中，所述前盖11与扬声器单体20的发声侧(即设置振膜211的一侧)相对设置，所述后盖13与扬声器单体20的发声侧(即设置振膜211的一侧)相背设置。
具体的，所述前盖11、中壳12及后盖13共同组配形成收容腔50，以用于收容扬声器单体20等部件。所述中壳12上还设有一通孔124，该通孔124 与单体安装孔121并排设置，该通孔124用于构成后声腔52。
进一步地，如图3至图6所示，所述中壳12和后盖13其中之一向靠近另一的方向凸设有第一挡壁122和第二挡壁123，所述第一挡壁122与第二挡壁123间隔设置，所述环形隔离件30卡接于第一挡壁122与第二挡壁123之间。如此，可将环形隔离件30固定于后声腔52内；而且，上述结构简单、且装配方便。
安装时，可直接将环形隔离件30插接于第一挡壁122与第二挡壁123之间。
可选地，第一挡壁122与第二挡壁123之间的宽度等于、或略大于、或略小于环形隔离件30的厚度，以提高环形隔离件30的装配稳定性。
在具体实施例中，所述第一挡壁122和第二挡壁123的结构形式、及其组合方式有很多，包括但不限于以下实施例。
在本实施例中，如图3至图6所示，所述第一挡壁122和第二挡壁123均沿环形隔离件30的环设方向延伸、并延伸预设长度。其中，预设长度可根据外壳10的尺寸、并考虑环形隔离件30的装配稳定性而自行设置。即是说，第一挡壁122和第二挡壁123均延伸一定长度，以有效固定环形隔离件30。如此，使得第一挡壁122和第二挡壁123的结构简单、制作方便、节时且省料。在本实施例中，可选地，所述第一挡壁122和第二挡壁123均设置为板状。
在所述第一挡壁122和第二挡壁123的第二实施例中，所述第一挡壁122和第二挡壁123均设置为环形。在该实施例中，可选地，所述第一挡壁122和第二挡壁123均设置为环板状。
在所述第一挡壁122和第二挡壁123的第三实施例中，所述第一挡壁122在环形隔离件30的环设方向上间隔设置有多个，和/或，所述第二挡壁123在环形隔离件30的环设方向上间隔设置有多个。具体的，所述第一挡壁122在环形隔离件30的环设方向上间隔设置有多个，且第二挡壁123设置为环形；或者，所述第一挡壁122设置为环形，且第二挡壁123在环形隔离件30的环设方向上间隔设置有多个；或者，所述第一挡壁122在环形隔离件30的环设方向上间隔设置有多个，且所述第二挡壁123在环形隔离件30的环设方向上间隔设置有多个。其中，当挡壁(第一挡壁122或第二挡臂)设置为多个时， 挡壁可设置为板状、柱状、或块状等。
进一步地，为了便于所述环形隔离件30插设于第一挡壁122与第二挡壁123之间，所述第一挡壁122的自由端设有第一导向结构，和/或，所述第二挡壁123的自由端设有第二导向结构。
需要说明的是，挡壁的自由端指的是，挡壁的远离与挡壁连接的中壳12/后盖13的一端。
具体的，在本实施例中，如图3至图6所示，仅在所述第一挡壁122的自由端设有第一导向结构。如此，可简化结构。在其他实施例中，也可仅在所述第二挡壁123的自由端设有第二导向结构；或者，在所述第一挡壁122的自由端设有第一导向结构，并在第二挡壁123的自由端设有第二导向结构。
在具体实施例中，导向结构既可以为基于所在挡壁成型导向面，也可为单独设置导向件。
在本实施例中，如图3至图6所示，所述第一导向结构包括第一导向面1221，所述第一导向面1221设于第一挡壁122的朝向第二挡壁123的侧面的自由端，所述第一导向面1221向远离第二挡壁123的方向倾斜延伸设置。如此，可简化第一导向结构的结构，降低成本，利于实现批量化生产。
在其他实施例中，当第二挡壁123的自由端设有第二导向结构时，可选地，所述第二导向结构包括第二导向面，所述第二导向面设于第二挡壁123的朝向第一挡壁122的侧面的自由端，所述第二导向面向远离第一挡壁122的方向倾斜延伸设置。
具体的，所述环形隔离件30的两端分别止抵于中壳12和后盖13，以使后声腔52分割成振动腔521和吸音腔522，并防止吸音材料通过环形隔离件30的两端侧进入振动腔521。
在本实施例中，如图3至图6所示，所述第一挡壁122和第二挡壁123设于中壳12上，并朝向靠近后盖13的方向凸设。该第一挡壁122与第二挡壁123构成挡壁结构。
可选地，所述第一挡壁122和第二挡壁123与中壳12一体注塑成型。如此可增强第一挡壁122和第二挡壁123的结构稳定性。
具体的，为了进一步地防止吸音材料通过环形隔离件30的两端侧进入振动腔521，所述后盖13对应环形隔离件30的位置设有弹性垫片，所述环形隔 离件30弹性止抵于弹性垫片。当然，弹性垫片也可设置为环形隔离件30的一部分，即，环形隔离件30还可包括弹性垫片，弹性垫片设置在环形隔板31或环形隔框的端部。
在本实用新型的其他实施例中，也可通过在后盖13和/或中壳12上成形环形限位凹槽等方式来固定环形隔离件30，在此不必一一赘述。
具体的，所述外壳10也可设置为其他结构形式。
比如，在本实用新型的另一实施例中，所述外壳10包括上盖和下盖，下盖与上盖共同组配形成收容腔50。其中，下盖和上盖中的至少一个包括侧壁，在具体实施方式中，上盖为板状结构，下盖包括底壁和侧壁，上盖盖接在下盖的侧壁上，从而形成收容腔50。
在该实施例中，所述扬声器单体20和上盖围成前声腔51。所述扬声器单体20、下盖及上盖共同围成后声腔52，用于改善低频声学性能。
在该实施例中，上盖或下盖上设置第一挡壁122和第二挡壁123，以固定环形隔离件30。或者，上盖和/或下盖设置环形限位凹槽，以固定环形隔离件30。
本实用新型还提出一种移动终端，该移动终端包括扬声器模组，如图1至图6所示，该扬声器模组100的具体结构参照上述实施例，由于本实用新型移动终端采用了上述所有实施例的全部技术方案，因此至少具有上述实施例的技术方案所带来的所有有益效果，在此不再一一赘述。
其中，移动终端包括但不限于MP3、MP4、MP5、手机、平板电脑等。
以上所述仅为本实用新型的优选实施例，并非因此限制本实用新型的专利范围，凡是在本实用新型的发明构思下，利用本实用新型说明书及附图内容所作的等效结构变换，或直接/间接运用在其他相关的技术领域均包括在本实用新型的专利保护范围内。

Claims (12)

  1. 一种扬声器模组，其特征在于，包括：
    外壳，所述外壳内具有收容腔；
    扬声器单体，安装于所述收容腔，并将所述收容腔隔离成前声腔和后声腔；以及
    环形隔离件，安装于所述后声腔、并环设于所述扬声器单体的周侧，所述环形隔离件将所述后声腔隔离成位于所述环形隔离件内侧的振动腔及位于所述环形隔离件外侧的吸音腔，所述扬声器单体设于所述振动腔，所述吸音腔用于填充吸音材料，所述环形隔离件具有连通所述吸音腔与所述振动腔的通气结构。
  2. 如权利要求1所述的扬声器模组，其特征在于，所述环形隔离件与所述外壳组配以形成两个所述吸音腔，两个所述吸音腔分别位于所述扬声器单体的相对的两侧。
  3. 如权利要求2所述的扬声器模组，其特征在于，所述通气结构对应两个所述吸音腔设置有两处。
  4. 如权利要求1所述的扬声器模组，其特征在于，所述环形隔离件包括环形隔板，所述通气结构包括开设于所述环形隔板上的多个通气孔；或者
    所述环形隔离件包括环形隔框，所述通气结构包括开设于所述环形隔框上的通气口及安装于所述环形隔框的通气口的透气件。
  5. 如权利要求4所述的扬声器模组，其特征在于，所述环形隔板设置为金属板；或者
    所述透气件与所述环形隔框一体注塑成型。
  6. 如权利要求1至5任意一项中所述的扬声器模组，其特征在于，所述外壳上对应所述环形隔离件的位置设置有挡壁结构，所述挡壁结构被配置为将 至少部分所述环形隔离件夹持固定。
  7. 如权利要求6所述的扬声器模组，其特征在于，所述外壳包括前盖、中壳及后盖，所述中壳上开设有单体安装孔，所述扬声器单体安装于所述单体安装孔，所述扬声器单体、所述中壳及所述前盖共同围成所述前声腔，所述扬声器单体、所述中壳、所述后盖及所述前盖共同围成所述后声腔。
  8. 如权利要求7所述的扬声器模组，其特征在于，所述中壳和所述后盖其中之一向靠近另一的方向凸设有第一挡壁和第二挡壁，所述第一挡壁与第二挡壁间隔设置；所述第一挡壁和所述第二挡壁构成所述挡壁结构所述环形隔离件卡接于所述第一挡壁与第二挡壁之间。
  9. 如权利要求8所述的扬声器模组，其特征在于，所述第一挡壁和第二挡壁均设置为环形；或者
    所述第一挡壁和第二挡壁均沿所述环形隔离件的环设方向延伸、并延伸预设长度；或者
    所述第一挡壁在所述环形隔离件的环设方向上间隔设置有多个，和/或，所述第二挡壁在所述环形隔离件的环设方向上间隔设置有多个。
  10. 如权利要求8所述的扬声器模组，其特征在于，所述第一挡壁的自由端设有第一导向结构，和/或，所述第二挡壁的自由端设有第二导向结构。
  11. 如权利要求10所述的扬声器模组，其特征在于，所述第一导向结构包括第一导向面，所述第一导向面设于所述第一挡壁的朝向所述第二挡壁的侧面的自由端，所述第一导向面向远离所述第二挡壁的方向倾斜延伸设置；和/或
    所述第二导向结构包括第二导向面，所述第二导向面设于所述第二挡壁的朝向所述第一挡壁的侧面的自由端，所述第二导向面向远离所述第一挡壁的方向倾斜延伸设置。
  12. 一种移动终端，其特征在于，包括如权利要求1至11任意一项中所述的扬声器模组。
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