WO2020062696A1 - Module de haut-parleur, et terminal mobile - Google Patents

Module de haut-parleur, et terminal mobile Download PDF

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Publication number
WO2020062696A1
WO2020062696A1 PCT/CN2018/125698 CN2018125698W WO2020062696A1 WO 2020062696 A1 WO2020062696 A1 WO 2020062696A1 CN 2018125698 W CN2018125698 W CN 2018125698W WO 2020062696 A1 WO2020062696 A1 WO 2020062696A1
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WO
WIPO (PCT)
Prior art keywords
wall
cavity
sound
sub
speaker module
Prior art date
Application number
PCT/CN2018/125698
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English (en)
Chinese (zh)
Inventor
李承伟
李振军
高远
Original Assignee
歌尔股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 歌尔股份有限公司 filed Critical 歌尔股份有限公司
Publication of WO2020062696A1 publication Critical patent/WO2020062696A1/fr

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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
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
    • H04R1/2807—Enclosures comprising vibrating or resonating arrangements
    • H04R1/2811—Enclosures comprising vibrating or resonating arrangements for loudspeaker transducers
    • 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 invention relates to the technical field of electroacoustics, and 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 present invention 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 which is housed in the housing cavity, which isolates the housing space into a front acoustic cavity and a rear acoustic cavity;
  • a plurality of spacers are installed on the rear acoustic cavity and are respectively disposed on the peripheral side of the speaker unit.
  • the plurality of spacers isolates the rear acoustic cavity into a vibration cavity located between the plurality of spacers.
  • a plurality of sound-absorbing chambers located on the peripheral side of the vibration chamber, the speaker unit is provided in the vibration chamber, the sound-absorbing chamber is used for filling sound-absorbing material, and the spacer has a communication between the sound-absorbing chamber and the Ventilation structure of vibration chamber.
  • a plurality of the sound absorption chambers communicate with each other and are arranged around the vibration chamber.
  • two of the spacers are provided, and the two spacers are respectively disposed on opposite sides of the speaker unit, and are respectively matched with the shell to form two sound-absorbing chambers.
  • the sound-absorbing cavities are respectively located on opposite sides of the vibration cavity.
  • a first barrier wall and a second barrier wall are provided on the inner wall of the housing, and the spacer is snapped between the first barrier wall and the second barrier wall.
  • the housing has a first side wall and a second side wall opposite to each other, and the first blocking wall includes a first sub blocking wall protruding from the first side wall, and a first blocking wall protruding from the first side wall.
  • a second sub barrier wall on the second side wall, the second barrier wall includes a third sub barrier wall protruding on the first side wall, and a first sub barrier wall protruding on the second side wall Four child retaining wall
  • the first sub-retaining wall is disposed opposite to the third sub-retaining wall to form a first catching groove
  • the second sub-retaining wall is disposed opposite to the fourth sub-retaining wall to form a second retaining groove
  • the spacer The two ends are respectively connected to the first card slot and the second card slot.
  • 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 front acoustic cavity.
  • the middle shell includes a surrounding wall and a mounting plate provided inside the surrounding wall, the single mounting hole is opened in the mounting plate, and the surrounding wall includes the first side wall and the Second side wall.
  • the spacer includes a partition
  • the ventilation structure includes a plurality of ventilation holes opened on the partition.
  • the partition includes a partition frame
  • the ventilation structure includes a vent opening opened on the partition frame and a ventilation member installed on the vent opening of the partition frame.
  • the air-permeable member is integrally injection-molded with the partition frame.
  • the invention also provides a mobile terminal, which includes a speaker module.
  • the speaker module includes:
  • a casing having a receiving cavity therein;
  • a speaker unit which is housed in the housing cavity, which isolates the housing space into a front acoustic cavity and a rear acoustic cavity;
  • a plurality of spacers are installed on the rear acoustic cavity and are respectively disposed on the peripheral side of the speaker unit.
  • the plurality of spacers isolates the rear acoustic cavity into a vibration cavity located between the plurality of spacers.
  • a plurality of sound-absorbing chambers located on the peripheral side of the vibration chamber, the speaker unit is provided in the vibration chamber, the sound-absorbing chamber is used for filling sound-absorbing material, and the spacer has a communication between the sound-absorbing chamber and the Ventilation structure of vibration chamber.
  • a plurality of spacers are provided to isolate the rear acoustic cavity into a vibration cavity and a sound absorption cavity, and a sound absorption material is filled in the sound absorption cavity, thereby improving the acoustic performance of the speaker module.
  • arranging a plurality of sound-absorbing cavities on the peripheral side of the vibration cavity can improve the utilization rate of the sound-absorbing material, thereby improving the sound-absorbing effect of the sound-absorbing material, thereby increasing the effective volume of the sound-absorbing cavity, and thus realizing it in a limited space
  • the acoustic performance of the speaker module is further improved. Therefore, the speaker module of the present invention has 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 structural schematic diagram of the middle shell in FIG. 1;
  • FIG. 2 is a structural schematic diagram of the middle shell 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 partially enlarged view at B in FIG. 3; FIG.
  • FIG. 6 is a schematic structural diagram of an embodiment of the spacer in FIG. 3;
  • FIG. 7 is a schematic structural diagram of another embodiment of the spacer in FIG. 3;
  • FIG. 8 is a rear view of the speaker module in FIG. 1;
  • FIG. 9 is a schematic cross-sectional structure diagram of the speaker module in FIG. 8;
  • FIG. 10 is a partially enlarged view at C in FIG. 9.
  • the front cover 20 Speaker unit 12 Middle shell twenty one Vibration system 121 Single mounting hole 211 Diaphragm 122 First retaining wall 212 Voice coil 1221 First child retaining wall twenty two Magnetic circuit system 1222 Second child retaining wall 30 Spacer 123 Second retaining wall 32 Bulkhead 1231 Third child retaining wall 321 Vent 1232 Fourth child retaining wall 33 Breathable parts 124 Through hole 50 Containment cavity 125 Surrounding wall 51 Front acoustic cavity 1251 First side wall 52 Rear acoustic cavity 1252 Second side wall 521 Vibration chamber 126 Mounting plate 522 Sound-absorbing cavity 127 First card slot
  • the directional indication is only used to explain in a specific posture (as shown in the drawings) (Shown) the relative positional relationship and movement of each component, etc., if the specific posture changes, the directional indicator will change accordingly.
  • the invention provides a speaker module.
  • the speaker module 100 includes:
  • a casing 10 having a receiving cavity 50 therein;
  • the speaker unit 20 is housed in a receiving chamber 50 which isolates the receiving chamber 50 into a front acoustic chamber 51 and a rear acoustic chamber 52;
  • a plurality of spacers 30 are installed on the rear acoustic cavity 52 and are respectively disposed on the peripheral side of the speaker unit 20.
  • the plurality of spacers 30 isolate the rear acoustic cavity 52 into a vibration cavity 521 located between the plurality of spacers 30, and A plurality of sound-absorbing cavities 522 on the peripheral side of the vibration cavity 521, the speaker unit 20 is provided in the vibration cavity 521, the sound-absorbing cavity 522 is used to fill sound-absorbing material, and the spacer 30 has a communication between the sound-absorbing cavity 522 and the vibration cavity 521 ventilation structure.
  • the speaker unit 20 generally 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 spacer 30 is an independent ventilation block member.
  • the sound absorbing cavity 522 is filled with a sound absorbing material. Specifically, a plurality of sound absorbing cavities 522 may be filled with a sound absorbing material at the same time.
  • the sound absorbing material includes sound absorbing particles, such as zeolite particles and dust.
  • the speaker module 100 of the present invention can improve the speaker module by providing a plurality of spacers 30 to isolate the rear acoustic cavity 52 into a vibration cavity 521 and a plurality of sound absorption cavities 522, and filling the sound absorption cavity 522 with sound absorbing materials. 100 acoustic performance. Moreover, arranging a plurality of sound-absorbing cavities 522 on the peripheral side of the vibration cavity 521 can improve 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 522, which The acoustic performance (especially low-frequency acoustic performance) of the speaker module 100 is further improved in a limited space. On the other hand, the miniaturization design of the speaker module 100 can also be realized.
  • the sound absorption cavity 522 has a large effective volume and excellent acoustic performance.
  • a plurality of sound-absorbing cavities 522 are provided to separately manage the sound-absorbing cavities 522, so that the sound-absorbing material can be easily filled.
  • the sound-absorbing materials filled in the plurality of sound-absorbing cavities 522 may be the same, may be all different, or may be partially the same.
  • a plurality of the sound-absorbing cavities 522 may be communicated with each other and disposed around the vibration cavity 521.
  • the sound absorption material can be filled at one time (but clogging easily occurs); further, the acoustic performance of the speaker module 100 can be further improved.
  • a plurality of the spacers 30 may be connected end to end in a ring shape in sequence, so that the plurality of sound absorption chambers 522 communicate with each other.
  • two spacers 30 are provided, and the two spacers 30 are respectively disposed on opposite sides of the speaker unit 20 and are respectively Grouped with the casing 10 to form two sound-absorbing cavities 522, the two sound-absorbing cavities 522 are located on opposite sides of the vibration cavity 521, respectively.
  • the structure of the speaker module 100 can also be simplified, which is beneficial to reducing the volume of the speaker module 100.
  • an inner wall of the casing 10 is provided with a first blocking wall 122 and a second blocking wall 123 spaced apart from each other, and the spacer 30 is engaged with the first Between the blocking wall 122 and the second blocking wall 123. During installation, the spacer 30 can be directly inserted between the first blocking wall 122 and the second blocking wall 123.
  • the spacer 30 can be fixed in the rear acoustic cavity 52; moreover, the above structure is simple and the assembly is convenient.
  • 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 spacer 30 to improve the assembly stability of the spacer 30.
  • a free end of the first blocking wall 122 is provided with a first guide structure (not shown), and
  • the second end of the second blocking wall 123 is provided with a second guiding structure (not shown).
  • the free end of the blocking wall refers to the end of the blocking wall forming the plug interface.
  • a first guiding structure may be provided only at the free end of the first blocking wall 122. In this way, the structure can be simplified.
  • 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 provided at a free end of a side of the first blocking wall 122 facing the second blocking wall 123, and the first guiding surface A direction extending away from the second blocking wall 123 is obliquely extended.
  • 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.
  • first blocking wall 122 and the second blocking wall 123 there are many structural forms of the first blocking wall 122 and the second blocking wall 123, and combinations thereof, including but not limited to the following embodiments.
  • the housing 10 has a first side wall 1251 and a second side wall 1252 opposite to each other.
  • the first blocking wall 122 includes a first sub blocking wall 1221 protruding from the first side wall 1251 and a second sub blocking wall 1222 protruding from the second side wall 1252.
  • the second blocking wall 123 The third sub-block wall 1231 is provided on the first side wall 1251, and the fourth sub-block wall 1232 is provided on the second side wall 1252.
  • the first sub-retaining wall 1221 is opposite to the third sub-retaining wall 1231 to form a first latching groove 127
  • the second sub-retaining wall 1222 is opposite to the fourth sub-retaining wall 1232 to form a second latching groove. 128, two ends of the spacer 30 are respectively engaged with the first card slot 127 and the second card slot 128.
  • the blocking walls (the first blocking arm and the second blocking arm) can be prevented from blocking the ventilation structure on the spacer 30, so that the acoustic performance of the speaker module 100 can be improved.
  • the two ends of the spacer 30 are respectively abutted against the first side wall 1251 and the second side wall 1252 to prevent the sound absorbing material from entering the vibration cavity 521 through the two ends of the spacer 30.
  • the casing 10 usually has different structural forms.
  • the casing 10 may be composed of a front cover 11, a middle casing 12, a rear cover 13, and the like, as well as an upper cover and a lower cover. .
  • 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 is
  • the body 20 is installed 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.
  • the speaker unit 20, the middle shell 12, the rear cover 13 and the front cover 11 are common. ⁇ ⁇ ⁇ ⁇ ⁇ 52 ⁇ Surrounding the sound chamber 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.
  • the middle shell 12 includes a surrounding wall 125 and a mounting plate 126 provided inside the surrounding wall 125.
  • the single mounting hole 121 is opened in the mounting plate 126.
  • 125 includes a first sidewall 1251 and a second sidewall 1252. The two sides of the spacer 30 abut against the front cover 11 and the middle shell 12 respectively.
  • a side of the first sub-retaining wall 1221 near the mounting plate 126 is connected to the mounting plate 126, and / or, the second sub-retaining wall 1222 is near the mounting plate.
  • One side of 126 is connected to the mounting plate 126, and / or, the side of the third sub-retaining wall 1231 near the mounting plate 126 is connected to the mounting plate 126, and / or, the fourth sub-retaining wall 1232 is near.
  • One side of the mounting plate 126 is connected to the mounting plate 126.
  • connection stability of the sub-retaining wall (the first sub-retaining wall 1221, the second sub-retaining wall 1222, or the third sub-retaining wall 1231, or the fourth sub-retaining wall 1232) and the middle shell 12 can be easily improved, thereby The assembly stability of the spacer 30 can be improved, and thus the acoustic performance of the speaker module 100 can be improved.
  • the first sub-retaining wall 1221 and the middle shell 12 are integrally injection-molded, and / or the second sub-retaining wall 1222 and the middle shell 12 are integrally injection-molded, and / or the third sub-retainer 1221
  • the wall 1231 is integrally injection-molded with the middle shell 12
  • / or the fourth sub-retaining wall 1232 is integrally injection-molded with the middle shell 12. In this way, the structural stability of the sub-retaining wall (the first sub-retaining wall 1221, the second sub-retaining wall 1222, or the third sub-retaining wall 1231, or the fourth sub-retaining wall 1232) can be improved.
  • the first sub-retaining wall 1221 is provided in a plate shape, or a block shape, or a column shape, etc .; and / or, the second sub-retaining wall 1222 is provided in a plate shape, or a block shape, or a column shape, etc .; And / or, the third sub-retaining wall 1231 is provided in a plate shape, or a block shape, or a column shape; and / or, the fourth sub-retaining wall 1232 is provided in a plate shape, or a block shape, or a column shape, and the like.
  • the first blocking wall 122 and the second blocking wall 123 are both protruded on the mounting plate 126, and the first blocking wall 122 Both the second blocking wall 123 and the second blocking wall 123 extend a predetermined length along the length direction of the spacer 30.
  • the preset length can be determined according to the size of the casing 10 and considering the assembly stability of the spacer 30, which is easily obtained by those skilled in the art. That is, the first blocking wall 122 and the second blocking wall 123 both extend a certain length to effectively fix the spacer 30. In this way, the structures of the first blocking wall 122 and the second blocking wall 123 can also be made simple, convenient to manufacture, time-saving and material-saving.
  • the first blocking wall 122 and the second blocking wall 123 are both provided in a plate shape.
  • the first blocking wall 122 and the second blocking wall 123 are both protruded on the mounting plate 126, and the first blocking wall 122
  • the second blocking wall 123 includes a plurality of sub-blocking walls spaced apart along the length direction of the spacer 30, and / or the second blocking wall 123 includes a plurality of sub-blocking walls spaced apart along the length direction of the partition 30. In this way, the spacer 30 can also be effectively fixed, and material can be saved.
  • first blocking wall 122 and the second blocking wall 123 may also be provided on the front cover 11, and the specific structures thereof need not be one by one here. To repeat.
  • 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.
  • the first embodiment of the first blocking wall 122 and the second blocking wall 123 can also be applied to the structure of the housing 10.
  • the side wall of the lower cover includes a first side wall 1251 and a second side wall 1252.
  • the sub-retaining wall (the first sub-retaining wall 1221, the second sub-retaining wall 1222, or the third sub-retaining wall 1231, or the fourth sub-retaining wall 1232) may also be connected to the lower cover. Bottom wall connection.
  • first blocking wall 122 and the second blocking wall 123 may also be provided on the upper cover or the bottom wall of the lower cover.
  • first blocking wall 122 and the second blocking wall 123 may also be provided on the upper cover or the bottom wall of the lower cover.
  • an elastic gasket is provided on the inner wall of the housing 10 corresponding to the spacer 30, and the spacer 30 stops elastically.
  • the elastic gasket may also be provided as a part of the spacer 30, that is, the spacer 30 may further include an elastic gasket, and the elastic gasket is disposed on the side of the spacer 30.
  • a limiting groove or the like may be formed on the inner wall of the casing 10 to fix the spacer 30, which need not be described in detail here.
  • the spacer 30 includes a partition, and the ventilation structure includes a plurality of ventilation holes opened on the partition. In this way, it is possible to isolate the rear acoustic cavity 52 into the vibration cavity 521 and the sound absorption cavity 522 by providing a partition, and to provide a communication hole to connect the sound absorption cavity 522 and the vibration cavity 521. Moreover, through the above-mentioned structural arrangement, the 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.
  • the plurality of vent holes are evenly distributed on the partition, or are distributed according to a preset rule. In this way, the sound absorption effect can be improved.
  • the plurality of vent holes are arranged in N rows by M columns, and the spacing between the rows is equal, and the spacing between the columns is also equal.
  • the plurality of vent holes are arranged in N rows, and the vent holes between adjacent rows are staggered.
  • the partition is provided as a metal plate.
  • the partition may be injection-molded, may be a stamped part, and may also be a profile.
  • the material of the separator may also be set to other non-metallic materials.
  • the separator may be a plastic plate and injection molded.
  • the spacer 30 includes a partition frame 32, and the ventilation structure includes a vent 321 opened on the partition frame 32 and mounted on the partition frame 32.
  • the air-permeable member 33 of the air vent 321 of the bulkhead 32 is formed by disposing the air-permeable member 33 on the partition frame 32, the air-permeable member 33 can be easily installed, which can save costs and facilitate mass production.
  • one of the air vents 321 may be provided, and the air vents 321 may be extended along the length direction of the partition frame 32.
  • the air vents 321 may be provided in a plurality of air vents 321 along The partition frame 32 is arranged at intervals in the length direction, and each vent 321 is correspondingly provided with a breather 33; or, the vent 321 may be provided with a plurality of vents 321 along the length direction of the partition 32 Arranged at intervals, one air-permeable member 33 is provided, and the air-permeable member 33 covers all the vents 321; and so on.
  • the partition frame 32 may be a metal frame.
  • the partition frame 32 may be injection-molded, stamped, or profiled.
  • the partition frame 32 may also be provided as other Non-metallic materials, for example, the partition frame 32 may be a plastic frame, which is injection molded.
  • the air-permeable member 33 and the partition frame 32 are integrally injection-molded.
  • the connection strength (ie, the firmness of the coupling) of the air-permeable member 33 and the partition frame 32 can be increased, so that the durability of the spacer 30 can be enhanced.
  • the air-permeable member 33 and the partition frame 32 may also be connected by double-sided tape, or other methods, such as other gluing methods, or ultrasonic welding methods, or hot-melt methods, etc. One by one.
  • the air-permeable member 33 may be provided in the partition frame 32 near the sound absorption cavity 522.
  • the air-permeable member 33 may be disposed on a side of the partition frame 32 near the vibration cavity 521.
  • the partition frame 32 can be set as two sub-frames spliced together, and the air-permeable member 33 is sandwiched between the two sub-frames.
  • the air-permeable member 33 may be a non-woven fabric, or a mesh fabric, or a nylon woven mesh or a metal mesh, or a filter paper, or a DuPont paper, or a coated paper, or a textured paper; However, it is not limited to this, as long as it is made of a breathable material or a breathable form, the purpose of ventilation resistance can be achieved.
  • 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. Since the mobile terminal of the present invention adopts all the above embodiments All technical solutions of the present invention have at least all the beneficial effects brought by the technical solutions of the foregoing embodiments, which are not described in detail 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)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)

Abstract

L'invention concerne un module de haut-parleur et un terminal mobile. Le module de haut-parleur comprend : un boîtier pourvu à l'intérieur d'une cavité de réception ; une unité de haut-parleur logée à l'intérieur de la cavité de réception et divisant la cavité de réception en une cavité sonore avant et une cavité sonore arrière ; et de multiples séparateurs installés au niveau de la cavité sonore arrière et disposés sur un côté périphérique de l'unité de haut-parleur, les multiples séparateurs divisant la cavité sonore arrière en une cavité de vibration située entre les multiples séparateurs et de multiples cavités d'absorption acoustique situées sur un côté périphérique de la cavité de vibration. L'unité de haut-parleur est disposée au niveau de la cavité de vibration, et les cavités d'absorption acoustique sont remplies d'un matériau d'absorption acoustique. Les cavités d'absorption acoustique et la cavité de vibration communiquent par l'intermédiaire d'une structure de ventilation des séparateurs. Le module de haut-parleur de la présente invention est pourvu de cavités d'absorption acoustique présentant un important volume fonctionnel efficace et permet d'obtenir des performances acoustiques supérieures.
PCT/CN2018/125698 2018-09-28 2018-12-29 Module de haut-parleur, et terminal mobile WO2020062696A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201811144547.3A CN109275063A (zh) 2018-09-28 2018-09-28 扬声器模组及移动终端
CN201811144547.3 2018-09-28

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Publication Number Publication Date
WO2020062696A1 true WO2020062696A1 (fr) 2020-04-02

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WO (1) WO2020062696A1 (fr)

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WO2021000153A1 (fr) * 2019-06-30 2021-01-07 瑞声声学科技(深圳)有限公司 Caisson de haut-parleur
WO2021134465A1 (fr) * 2019-12-31 2021-07-08 瑞声声学科技(深圳)有限公司 Boîtier de haut-parleur
CN111147967A (zh) * 2020-02-20 2020-05-12 精拓丽音科技（北京）有限公司 一种扬声器模组及扬声器模组的制备方法

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CN204180268U (zh) * 2014-11-20 2015-02-25 歌尔声学股份有限公司 扬声器模组
CN204498347U (zh) * 2015-04-13 2015-07-22 歌尔声学股份有限公司 扬声器模组
CN207382566U (zh) * 2017-10-23 2018-05-18 上海润欣科技股份有限公司 扬声器箱
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