WO2020077776A1 - Module de haut-parleur - Google Patents

Module de haut-parleur Download PDF

Info

Publication number
WO2020077776A1
WO2020077776A1 PCT/CN2018/120564 CN2018120564W WO2020077776A1 WO 2020077776 A1 WO2020077776 A1 WO 2020077776A1 CN 2018120564 W CN2018120564 W CN 2018120564W WO 2020077776 A1 WO2020077776 A1 WO 2020077776A1
Authority
WO
WIPO (PCT)
Prior art keywords
cavity
sound
module according
isolation member
upper shell
Prior art date
Application number
PCT/CN2018/120564
Other languages
English (en)
Chinese (zh)
Inventor
郝正恩
张军
周树芝
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 WO2020077776A1 publication Critical patent/WO2020077776A1/fr

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06—Loudspeakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2400/00—Loudspeakers
    • H04R2400/11—Aspects regarding the frame of loudspeaker transducers

Definitions

  • the invention relates to the technical field of acoustic-electric conversion. More specifically, it relates to a sound generator module.
  • the sound generator module is used to complete the conversion between electrical signals and acoustic signals, and is an energy conversion device.
  • the sound generator module includes an outer shell, and a sound generator monomer is contained in the outer shell.
  • the sound generator monomer includes a vibration system and a magnetic circuit system.
  • the sound generator monomer separates the entire cavity of the module into a front sound cavity and a rear sound cavity.
  • the technician In order to reduce the resonance frequency (F0) of the sound generator module, expand the bandwidth, and improve the low-frequency performance of the sound generator module, the technician usually sets a sound absorbing component including a sound absorbing material in the rear sound cavity.
  • F0 resonance frequency
  • granular sound-absorbing materials are applied to the sound generator module. Filling sound-absorbing particles will set up a filling area in the rear sound cavity.
  • the filling area isolates the sound generator monomer and the filling by, for example, filling mesh Filling area to prevent sound-absorbing particles from entering the sound generator during filling or use.
  • sound-absorbing particles tend to accumulate in the end area of the filling area.
  • the accumulated sound-absorbing particles can cause poor airflow, which not only does not produce sound-absorbing effects, but also reduces the volume of the rear acoustic cavity due to the accumulation.
  • the opposite effect ie F0 increases).
  • the present invention provides a sounder module, including a housing, the sounder unit is contained in the housing, the sounder unit includes a vibration system and a magnetic circuit system, the sounder unit will the entire mold
  • the inner cavity of the group is divided into a front acoustic cavity and a rear acoustic cavity.
  • the rear acoustic cavity includes a sound absorbing area for filling sound absorbing particles, and a first isolation member is provided between the sound absorbing area and the sound generator monomer.
  • a second isolation component is provided in the sound absorption area, the second isolation component divides the sound absorption area into a first cavity and a second cavity with air circulation, and the sound absorption particles are accommodated in the first cavity in vivo.
  • the first isolation member and / or the second isolation member are mesh fabrics.
  • the first cavity includes opposite first and second ends, the first isolation member is disposed adjacent to the first end, and the second cavity includes at least adjacent to the second end part.
  • a recess is provided on the housing at a position corresponding to the sound absorption area, and the second isolation member covers the recess and is fixed on the housing to form the second cavity.
  • the outer shell includes an upper shell and an upper cover surrounding the sound absorption area, an opening is formed on a top surface of the upper shell, the upper cover covers the opening and is combined on an inner side wall of the upper shell,
  • the second isolation member is a mesh cloth, and the mesh cloth is combined with the inner wall of the upper cover and forms a second cavity with the upper cover.
  • the outer shell includes an upper shell and a first steel sheet surrounding the sound absorption area, a top surface of the upper shell has a hollow, and the first steel sheet covers the hollow of the upper shell and is connected with the hollow The edge of the combination is fixed;
  • a second cavity is formed between the second isolation member and the first steel sheet.
  • the second isolation member is a mesh cloth, and the mesh cloth is bonded to the inner wall of the first steel sheet by pasting; or,
  • the mesh cloth is bonded to the inner wall of the upper shell on the peripheral side of the first steel sheet by means of bonding, injection molding or hot melting.
  • the upper shell includes a second steel sheet separating the front acoustic cavity and the rear acoustic cavity.
  • the sound generator unit is provided with a rear sound hole communicating with the rear sound cavity, and the first isolation member covers the rear sound hole.
  • the sound generator unit is located below the first cavity, and the second cavity is located above the first cavity.
  • the sound generator module provided by the invention is provided with an isolation component in the area where the sound-absorbing particles are filled in the rear sound cavity, so that the filling area forms two cavities that can communicate with each other, and one of the cavities is provided with sound-absorbing particles. Even if the sound-absorbing particles in the cavity are piled up, the air circulation is still smooth due to the presence of another cavity, the contact area of the sound-absorbing particles and the air is increased, and the problem of poor airflow due to the accumulation of some sound-absorbing particles is avoided. Therefore, the sound absorbing effect can be exerted, and the problem of F0 difference caused by uneven distribution of sound absorbing particles due to accumulation of sound absorbing particles can be prevented.
  • FIG. 1 shows an exploded schematic view of the sound generator module in the embodiment of the present invention.
  • FIG. 2 shows a schematic cross-sectional view from the right in FIG. 1.
  • the invention provides a sound generator module, which includes an outer shell, and a single sound generator is contained in the outer shell.
  • the single sound generator includes a vibration system and a magnetic circuit system. It is divided into a front sound cavity and a rear sound cavity.
  • the rear sound cavity includes a sound absorbing area for filling sound absorbing particles.
  • a first isolation member is provided between the sound absorbing area and the sound generator unit, and a sound absorbing area is provided in the sound absorbing area.
  • a second isolation component that divides the sound absorption area into a first cavity and a second cavity with air circulation, and the sound absorption particles are accommodated in the first cavity.
  • the sound generator module provided by the invention is provided with an isolation component in the area where the sound-absorbing particles are filled in the rear sound cavity, so that the filling area forms two cavities that can communicate with each other, and one of the cavities is provided with sound-absorbing particles. Even if the sound-absorbing particles in the cavity are piled up, the air circulation is still smooth due to the presence of another cavity, the contact area of the sound-absorbing particles and the air is increased, and the problem of poor airflow due to the accumulation of some sound-absorbing particles is avoided. Therefore, the sound absorbing effect can be exerted, and the problem of F0 difference caused by uneven distribution of sound absorbing particles due to accumulation of sound absorbing particles can be prevented.
  • the first cavity includes opposite first and second ends, the first isolation member is disposed adjacent to the first end, and the second cavity includes at least adjacent to the second end part.
  • the first isolation member has a breathable effect, even if the sound absorbing particles near it are stacked to cause uneven density, the first isolation member is equivalent to providing an air circulation area, which increases the contact area between the sound absorbing particles near the first isolation member and the air Therefore, the second cavity includes a portion adjacent to the second end, which avoids the effect of the accumulation of sound absorbing particles near the second end.
  • a recessed portion is provided on the housing corresponding to a position of the sound absorption area, and the second isolation member covers the recessed portion and is fixed on the housing to form the second cavity.
  • the second cavity can be arbitrarily designed under the premise of conforming to the actual process, as long as it has a portion adjacent to the second end, and this portion can be enclosed by the side wall of the housing and the second isolation member, or by The top wall of the housing or the bottom wall of the housing is enclosed with the second isolation member, and may even be formed by the above combination.
  • FIG. 1 is an exploded schematic view of the sound generator module in the embodiment of the present invention
  • FIG. 2 shows a schematic cross-sectional view from the right in FIG. 1.
  • the housing of the sound generator module includes a first steel sheet 11, an upper shell 12 and a lower shell 13, the top surface of the upper shell 12 has a hollow, the first steel sheet 11 Cover the hollow of the upper shell 12 and fix it in combination with the hollow edge; a second cavity 72 is formed between the second isolation member 32 and the first steel sheet 11.
  • the first steel sheet 11 is provided with a filling hole 21 for filling sound-absorbing particles and a sealing cover 22 for sealing the filling hole 22.
  • the sounder monomer 4 divides the entire module into a front sound cavity 80 and a rear sound cavity.
  • the magnetic circuit system of the sounder monomer 4 is located in the rear sound cavity.
  • the sound absorption area 70 is isolated from the space where the magnetic circuit system in the sound generator unit 4 is located by the first isolation member 31, but air circulation is possible. That is, the rear acoustic cavity includes the space where the magnetic circuit system is located and the aforementioned sound absorption area 70.
  • the sound absorbing area 70 includes a first cavity 71 and a second cavity 72, and the first cavity 71 and the second cavity 72 are separated by a second isolation member 32 in a flat plate shape.
  • the second partition member 32 forms an arc-shaped notch that avoids the filling hole 21.
  • the sound-absorbing particles are filled into the first cavity through the filling hole 21, and the sound-absorbing particles in the first cavity are generally filled, which increases the utilization rate of the first cavity.
  • the sound generator unit is provided with a rear sound hole communicating with the rear sound cavity, the first isolation member covers the rear sound hole, and the first cavity is filled with sound absorbing particles so that the space of the rear sound cavity is maximized , To achieve "full filling" in the process.
  • the filling or filling mentioned above means the filling limit or filling limit in the process.
  • the filling process is used for filling, and the filling volume of the sound-absorbing particles is generally more than 80%.
  • a maximum filling volume is generally set in the process (the maximum filling volume is generally not Reached 100%), the maximum filling volume in this process is the filling in this embodiment.
  • the advantage of this arrangement is that the filling space of sound-absorbing particles is increased, so that under the same number of sound-absorbing particles, the volume of the rear acoustic cavity can be reduced while ensuring a better bass effect.
  • the sound-absorbing particles can also be completely filled, that is, the filling volume of the first cavity is 100%.
  • the positional relationship between the first cavity and the second cavity can be seen.
  • the sound generator unit 4 is located below the first cavity 71
  • the second cavity 72 is located on the first cavity 71.
  • the part of the second cavity 72 near the left side in the figure is the part of the second cavity 72 disposed adjacent to the second end, which will not be repeated in the present invention.
  • the second cavity 72 is located above the first cavity 71.
  • the second cavity may be located below the first cavity, on the left side, or any combination of the above. Not exhaustive.
  • the sound generator unit may be located on the sides of the first cavity and the second cavity, and the present invention is not limited thereto.
  • the first isolation component and the second isolation component may be a mesh fabric, etc.
  • the first isolation component may be the same or different, and the invention is not limited thereto.
  • the second isolation member is a mesh cloth, which can be bonded to the inner wall of the first steel sheet by pasting, or can be bonded to the peripheral side of the first steel sheet by bonding, injection molding, or hot-melt. On the inner wall of the upper shell.
  • the first isolation component can be fixed to the upper shell of the module by injection molding, hot melt, adhesive, etc .; or, in some embodiments not shown, the sound generator unit includes a housing, and the first isolation member It can also be fixed to the shell of the sound generator unit by injection molding, hot melt, adhesive, etc., the present invention does not limit this.
  • the sound absorption area may be formed by the upper cover and the upper shell, the materials of the upper cover and the upper shell are both plastic, so that the mesh cloth may be bonded to the inner wall of the upper cover or the upper shell by hot melting Of the side wall.
  • an opening is formed on the top surface of the upper case, the upper cover covers the opening and is combined on the inner side wall of the upper case, and the second isolation member is a mesh cloth , The mesh cloth is combined on the inner wall of the upper cover with the upper cover by hot melting to form a second cavity.
  • the upper cover may be installed afterwards, or may be manufactured together with the upper shell.
  • the second isolation member may be first manufactured on the upper cover, and then fixed to the upper shell by assembly or other methods.
  • the upper shell further includes a second steel sheet separating the front acoustic cavity and the rear acoustic cavity.
  • the second isolation member may be combined on the second steel sheet to form a second cavity. Obviously, at this time, the second cavity is located below the first cavity.
  • the edge of the first steel sheet 11 is bent toward the direction of the rear acoustic cavity to form a blank holder, and the border between the blank holder and the second isolation member 32 forms a joint, so that the second isolation member 32 passes the joint
  • the part and the first steel sheet form a second cavity.
  • the edge of the first steel sheet protrudes in the direction of the rear acoustic cavity to form a boss, and the edge of the boss and the second isolation member forms a joint.
  • the sound generator module shown in FIG. 2 is a module with a side sound outlet structure, but the present invention does not limit the position of the sound outlet, and the sound outlet can be set according to specific needs.
  • the present embodiment also includes an FPCB board 5 having a circuit thereon, thereby controlling the energization of the voice coil.
  • the sound vent 61 in the figure is used to adjust the sound pressure of the rear sound cavity to prevent the vibration of the diaphragm from being affected.
  • the sound vent 61 is sealed by the damper 62.
  • the present invention avoids the problem of poor airflow caused by the accumulation of some sound absorbing particles by providing a partition member in the area where the sound absorbing particles are filled in the rear acoustic cavity, and can exert a sound absorbing effect.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)

Abstract

La présente invention concerne un module de haut-parleur L'invention concerne un élément de séparation qui est disposé au niveau d'une région remplie de particules absorbant le son dans une chambre acoustique arrière de telle sorte que deux chambres sont formées dans la région remplie de particules et que l'air peut circuler entre celles-ci. L'autre chambre est prévue pour assurer que l'air circule toujours sans à-coups lorsque le module de haut-parleur est utilisé même si les particules absorbant le son s'accumulent dans l'une des chambres; et augmenter en conséquence la zone de contact entre les particules absorbant le son et l'air, de façon à empêcher un flux d'air médiocre provoqué par l'accumulation d'une partie des particules absorbant le son, ce qui permet de produire un bon effet d'absorption sonore, et à résoudre le problème des différences de F0 provoqués par une distribution irrégulière des particules absorbant le son due à l'accumulation des particules absorbant le son.
PCT/CN2018/120564 2018-10-18 2018-12-12 Module de haut-parleur WO2020077776A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201811215886.6A CN109195084B (zh) 2018-10-18 2018-10-18 发声器模组
CN201811215886.6 2018-10-18

Publications (1)

Publication Number Publication Date
WO2020077776A1 true WO2020077776A1 (fr) 2020-04-23

Family

ID=64946026

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2018/120564 WO2020077776A1 (fr) 2018-10-18 2018-12-12 Module de haut-parleur

Country Status (2)

Country Link
CN (1) CN109195084B (fr)
WO (1) WO2020077776A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110198513A (zh) * 2019-05-08 2019-09-03 歌尔股份有限公司 一种发声装置
CN211019128U (zh) * 2019-12-02 2020-07-14 瑞声科技(新加坡)有限公司 扬声器箱
WO2021109156A1 (fr) * 2019-12-07 2021-06-10 瑞声声学科技(深圳)有限公司 Enceinte de haut-parleur

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204498347U (zh) * 2015-04-13 2015-07-22 歌尔声学股份有限公司 扬声器模组
CN106851498A (zh) * 2017-01-12 2017-06-13 瑞声科技(新加坡)有限公司 扬声器箱
CN106982406A (zh) * 2017-01-22 2017-07-25 瑞声科技(新加坡)有限公司 扬声器箱
CN207354603U (zh) * 2017-09-28 2018-05-11 瑞声科技(新加坡)有限公司 扬声器箱
CN207460510U (zh) * 2017-10-31 2018-06-05 歌尔科技有限公司 一种扬声器模组

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN206602656U (zh) * 2017-03-21 2017-10-31 歌尔股份有限公司 扬声器模组
CN207625783U (zh) * 2017-08-18 2018-07-17 瑞声科技(新加坡)有限公司 发声器件
CN108430014B (zh) * 2018-02-11 2019-07-05 瑞声科技(新加坡)有限公司 扬声器箱
CN208739412U (zh) * 2018-10-18 2019-04-12 歌尔股份有限公司 发声器模组

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204498347U (zh) * 2015-04-13 2015-07-22 歌尔声学股份有限公司 扬声器模组
CN106851498A (zh) * 2017-01-12 2017-06-13 瑞声科技(新加坡)有限公司 扬声器箱
CN106982406A (zh) * 2017-01-22 2017-07-25 瑞声科技(新加坡)有限公司 扬声器箱
CN207354603U (zh) * 2017-09-28 2018-05-11 瑞声科技(新加坡)有限公司 扬声器箱
CN207460510U (zh) * 2017-10-31 2018-06-05 歌尔科技有限公司 一种扬声器模组

Also Published As

Publication number Publication date
CN109195084A (zh) 2019-01-11
CN109195084B (zh) 2024-05-03

Similar Documents

Publication Publication Date Title
CN109218928B (zh) 发声装置
KR101807276B1 (ko) 음향장치
CN111343547A (zh) 声学装置及电子设备
WO2016165355A1 (fr) Module pour haut parleur
WO2020103301A1 (fr) Module de haut-parleur
WO2020125633A1 (fr) Dispositif acoustique et appareil électronique
WO2020077776A1 (fr) Module de haut-parleur
KR20160107205A (ko) 스피커 모듈 및 해당 스피커 모듈을 포함하는 전자장치
WO2018095033A1 (fr) Unité de haut-parleur et module de haut-parleur
WO2018218766A1 (fr) Module de haut-parleur et dispositif électronique
CN108551635B (zh) 微型扬声器模组
CN109218929B (zh) 发声器
WO2019019325A1 (fr) Module de haut-parleur et appareil électronique
CN111149371B (zh) 一种扬声器以及移动终端
WO2019161704A1 (fr) Générateur acoustique
US11159863B2 (en) Loudspeaker module and electronic device
WO2020140542A1 (fr) Haut-parleur
WO2019161703A1 (fr) Générateur de son et produit électronique
WO2021088225A1 (fr) Dispositif acoustique et appareil électronique
CN214708013U (zh) 一种耳机
CN115209287A (zh) 一种耳机
WO2019119943A1 (fr) Structure d'emballage pour particules absorbant le son et module de haut-parleur
CN108377451A (zh) 一种发声装置及电子设备
WO2021062955A1 (fr) Appareil de production de son, module acoustique pourvu d'un appareil de production de son, et dispositif électronique
WO2020199654A1 (fr) Appareil acoustique et dispositif électronique

Legal Events

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

Ref document number: 18937169

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 18937169

Country of ref document: EP

Kind code of ref document: A1