WO2022000687A1 - Dispositif de production de son - Google Patents

Dispositif de production de son Download PDF

Info

Publication number
WO2022000687A1
WO2022000687A1 PCT/CN2020/106414 CN2020106414W WO2022000687A1 WO 2022000687 A1 WO2022000687 A1 WO 2022000687A1 CN 2020106414 W CN2020106414 W CN 2020106414W WO 2022000687 A1 WO2022000687 A1 WO 2022000687A1
Authority
WO
WIPO (PCT)
Prior art keywords
sound
diaphragm
fixed
front cover
vibrating
Prior art date
Application number
PCT/CN2020/106414
Other languages
English (en)
Chinese (zh)
Inventor
朱俊杰
董献杰
张龙
杨虎虎
Original Assignee
瑞声声学科技(深圳)有限公司
瑞声科技(新加坡)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 瑞声声学科技(深圳)有限公司, 瑞声科技(新加坡)有限公司 filed Critical 瑞声声学科技(深圳)有限公司
Publication of WO2022000687A1 publication Critical patent/WO2022000687A1/fr

Links

Classifications

    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H04R9/04—Construction, mounting, or centering of coil
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06—Loudspeakers

Definitions

  • the utility model relates to the field of electro-acoustic conversion, in particular to a sound-emitting device used in electronic sound box products.
  • Sound-emitting devices also known as speakers or horns, are used in speakers to convert audio signals into sound for playback.
  • the sound-generating device of the related art includes a sound-generating unit and a front cover fixed to the sound-generating unit, the sound-generating unit includes a vibration system and a magnetic circuit system having a magnetic gap and driving the vibration system to vibrate; the vibration system includes A vibrating membrane for vibrating and producing sound, the front cover is covered on the vibrating membrane.
  • the four corners of the front cover have fractures.
  • the corners of the front cover cannot be glued, and there is a risk of air leakage.
  • the purpose of the utility model is to provide a sound-emitting device with good sealing performance.
  • the present invention provides a sound-generating device, which includes a sound-generating unit and a front cover fixed to the sound-generating unit, and the sound-generating unit includes a vibration system and a magnetic circuit for driving the vibration system to vibrate system; the vibration system includes a vibrating membrane for vibrating and producing sound, the front cover is covered on the side of the sound-emitting unit where the vibrating membrane is arranged, and the sound-emitting device further includes a device that is clamped and fixed on the sound-emitting unit. A sealed annular seal is formed between the body and the front cover.
  • the front cover is provided with a sounding hole therethrough, the front cover and the diaphragm together form a sounding front cavity, and the sounding hole communicates the sounding front cavity with the outside world.
  • the front cover includes a cover plate that is disposed opposite to the diaphragm and is spaced apart, a ring-shaped ring that is bent toward the magnetic circuit system from the peripheral edge of the cover plate and extends along the peripheral side of the sounding unit.
  • the component includes a main body portion sandwiched and fixed between the diaphragm and the cover plate, and an extension portion that is bent and extended along the inner side of the side plate from the periphery of the main body portion and completely covers the fracture, and The extension portion is partially sandwiched and fixed between the sound generating unit and the side plate along the vibration direction perpendicular to the diaphragm to form a seal.
  • the sealing member is made of polymer thermoforming material.
  • the vibrating film includes a vibrating portion, a folded ring portion extending outward from a peripheral edge of the vibrating portion, a fixing portion extending from a side of the folded ring portion away from the vibrating portion, and a fixing portion attached to the vibrating portion.
  • the spherical top of the vibrating part, the vibrating part is provided with a through hole therethrough, the spherical top is attached to the side of the vibrating part away from the magnetic circuit system and completely covers the through hole.
  • the sound-generating unit further includes a basin frame, and the diaphragm and the magnetic circuit system are respectively fixed on opposite sides of the basin frame.
  • the magnetic circuit system includes a magnetic yoke, a main magnetic steel fixed on the magnetic yoke, a secondary magnetic steel fixed on the magnetic yoke and separated from the main magnetic steel to form a magnetic gap, and a secondary magnetic steel covered on the magnetic yoke.
  • the upper splint of the secondary magnet is not limited to a magnetic yoke, a main magnetic steel fixed on the magnetic yoke, a secondary magnetic steel fixed on the magnetic yoke and separated from the main magnetic steel to form a magnetic gap, and a secondary magnetic steel covered on the magnetic yoke.
  • the sound-generating device further comprises a ring-shaped seal which is sandwiched and fixed between the sound-generating unit and the front cover to form a seal.
  • the sealing member includes a main body portion sandwiched and fixed between the diaphragm and the cover plate, and a peripheral edge of the main body portion is bent and extended along the inner side of the side plate and completely covers the The extension part of the fracture, and the extension part is partially sandwiched and fixed between the sounding unit and the side plate along the vibration direction perpendicular to the diaphragm to form a seal.
  • the arrangement of this structure ensures the integrity of the corners of the front cover, and can perform a full circle of glue on the periphery of the extension portion, thereby improving the problem of poor sealing of the sounding device.
  • Fig. 1 is the stereoscopic structure schematic diagram of the sound-emitting device of the present invention
  • FIG. 2 is an exploded view of a partial three-dimensional structure of the sound-emitting device of the present invention
  • FIG. 3 is a cross-sectional view taken along line A-A in FIG. 1 .
  • the present invention provides a sound-generating device 100 , which includes a sound-generating unit 1 and a front cover 2 fixed to the sound-generating unit 1 .
  • the sound-generating unit 1 includes a vibration system 11 and a magnetic circuit system 12 that drives the vibration system 11 to vibrate.
  • the vibration system 11 includes a vibrating membrane 111 for vibrating and producing sound, and the front cover 2 is covered on the side of the sound-generating unit 1 where the vibrating membrane 111 is arranged.
  • the vibrating film 111 includes a vibrating portion 1111 , a ring portion 1112 extending outward from the periphery of the vibrating portion 1111 , and a fixing portion extending from the side of the ring portion 1112 away from the vibrating portion 1111 .
  • part 1113 and a dome 1114 attached to the vibrating part 1111 the vibrating part 1111 is provided with a through hole 1115 therethrough, and the dome 1114 is attached to the vibrating part 1111 away from the magnetic circuit system 12 and completely cover the through hole 1115.
  • the arrangement of the dome increases the vibration effect of the diaphragm 111 , thereby improving the acoustic performance of the sound-emitting device 100 .
  • the front cover 2 includes a cover plate 21 disposed opposite to the diaphragm 111 at a distance, and is bent from the periphery of the cover plate 21 to the direction of the magnetic circuit system 12 and extends along the circumference of the sounding unit 1 .
  • the annular side plate 22 and the fracture 23 opened on the side plate 22 and dividing the side plate 22 into multiple sections, the fracture 23 is located at the corner of the sounding unit 1 .
  • the sound-generating device 100 further includes an annular sealing member 3 sandwiched and fixed between the sound-generating unit 1 and the front cover 2 to form a seal.
  • the sealing member 3 includes a main body portion 31 sandwiched and fixed between the diaphragm 111 and the cover plate 21 , and a peripheral edge of the main body portion 31 is bent along the inner side of the side plate 22
  • the extension portion 32 extending and completely covering the fracture 23, and the extension portion 32 is partially sandwiched and fixed between the sounding unit 1 and the side plate 22 along the vibration direction perpendicular to the diaphragm 111 to form a seal.
  • the arrangement of this structure ensures the integrity of the corners of the front cover 2 , and can perform a full circle of glue on the periphery of the extension portion 32 , thereby improving the problem of poor sealing of the sounding device 100 .
  • the front cover 2 is made of a metal material
  • the sealing member 3 is made of a polymer thermoforming material.
  • the front cover 2 is made of a metal material
  • the sealing member 3 is made of a polymer thermoforming material.
  • it is not limited to this.
  • the front cover 2 is provided with a sound-emitting hole 24 passing through it, and the front cover 2 and the vibrating membrane 111 together form a sound-emitting front cavity 10, and the sound-emitting hole 24 is formed.
  • the hole 24 communicates the pre-voice cavity 10 with the outside world.
  • the positions of the sound-emitting holes 24 can realize sound-emitting structures in different directions.
  • the sound-emitting holes 24 are arranged through the cover plate 21 to form a front-side sound-emitting structure.
  • the sound-emitting hole 24 can also be provided through the side plate 22 to form a side sound-emitting structure, which is convenient for use when the front-side sound is blocked, and the use flexibility is higher.
  • the sound generating unit 1 further includes a basin frame 13 , and the diaphragm 111 and the magnetic circuit system 12 are respectively fixed on opposite sides of the basin frame 13 .
  • the magnetic circuit system 12 includes a magnetic yoke 121 , a main magnetic steel 122 fixed to the magnetic yoke 121 , and a secondary magnetic steel fixed to the magnetic yoke 121 and spaced from the main magnetic steel 122 to form a magnetic gap 20 .
  • the vibration system 11 further includes a voice coil 112 inserted in the magnetic gap 20 to drive the vibrating membrane 111 to vibrate and produce sound, and an elastic coil 112 fixed to the basin frame 13 and connected to the voice coil 112 .
  • Piece 113 In this embodiment, the elastic member 113 is a flexible circuit board.
  • the vibration system 11 further includes an auxiliary diaphragm 114 attached to the side of the elastic member 113 away from the diaphragm.
  • the sound-generating device further comprises a ring-shaped seal which is sandwiched and fixed between the sound-generating unit and the front cover to form a seal.
  • the sealing member includes a main body portion sandwiched and fixed between the diaphragm and the cover plate, and a peripheral edge of the main body portion is bent and extended along the inner side of the side plate and completely covers the The extension part of the fracture, and the extension part is partially sandwiched and fixed between the sounding unit and the side plate along the vibration direction perpendicular to the diaphragm to form a seal.
  • the arrangement of this structure ensures the integrity of the corners of the front cover, and can perform a full circle of glue on the periphery of the extension portion, thereby improving the problem of poor sealing of the sounding device.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)

Abstract

Le présent modèle d'utilité concerne un dispositif de production de son. Le dispositif de production de son comprend une unité de production de son et un couvercle avant fixé sur l'unité de production de son. L'unité de production de son comprend un système de vibration et un système de circuit magnétique entraînant le système de vibration pour qu'il vibre ; le système de vibration comprend une membrane pour vibrer et produire du son ; le couvercle avant couvre le côté, qui est muni de la membrane, de l'unité de production de son. Le dispositif de production de son comprend en outre un élément d'étanchéité annulaire serré et fixé entre l'unité de production de son et le couvercle avant de manière à former une étanchéité. Par rapport à l'art apparenté, le dispositif de production de son fourni dans le présent modèle d'utilité améliore le problème de mauvaise étanchéité.
PCT/CN2020/106414 2020-06-29 2020-07-31 Dispositif de production de son WO2022000687A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202021245062.6U CN212588500U (zh) 2020-06-29 2020-06-29 发声器件
CN202021245062.6 2020-06-29

Publications (1)

Publication Number Publication Date
WO2022000687A1 true WO2022000687A1 (fr) 2022-01-06

Family

ID=74654504

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/106414 WO2022000687A1 (fr) 2020-06-29 2020-07-31 Dispositif de production de son

Country Status (2)

Country Link
CN (1) CN212588500U (fr)
WO (1) WO2022000687A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN218920606U (zh) * 2022-09-30 2023-04-25 瑞声光电科技(常州)有限公司 发声器件

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104796817A (zh) * 2015-05-06 2015-07-22 歌尔声学股份有限公司 扬声器模组
US20160241938A1 (en) * 2015-02-13 2016-08-18 AAC Technologies Pte. Ltd. Speaker
US20170347200A1 (en) * 2016-05-26 2017-11-30 AAC Technologies Pte. Ltd. Speaker
CN208638584U (zh) * 2018-08-03 2019-03-22 瑞声科技(新加坡)有限公司 扬声器模组
CN109905822A (zh) * 2018-12-29 2019-06-18 瑞声科技(新加坡)有限公司 电子设备
CN110035163A (zh) * 2018-12-29 2019-07-19 瑞声科技(新加坡)有限公司 电子设备
CN110856082A (zh) * 2019-10-10 2020-02-28 瑞声科技(新加坡)有限公司 发声器件

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160241938A1 (en) * 2015-02-13 2016-08-18 AAC Technologies Pte. Ltd. Speaker
CN104796817A (zh) * 2015-05-06 2015-07-22 歌尔声学股份有限公司 扬声器模组
US20170347200A1 (en) * 2016-05-26 2017-11-30 AAC Technologies Pte. Ltd. Speaker
CN208638584U (zh) * 2018-08-03 2019-03-22 瑞声科技(新加坡)有限公司 扬声器模组
CN109905822A (zh) * 2018-12-29 2019-06-18 瑞声科技(新加坡)有限公司 电子设备
CN110035163A (zh) * 2018-12-29 2019-07-19 瑞声科技(新加坡)有限公司 电子设备
CN110856082A (zh) * 2019-10-10 2020-02-28 瑞声科技(新加坡)有限公司 发声器件

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