WO2022000781A1 - Appareil de production de son - Google Patents

Appareil de production de son Download PDF

Info

Publication number
WO2022000781A1
WO2022000781A1 PCT/CN2020/114323 CN2020114323W WO2022000781A1 WO 2022000781 A1 WO2022000781 A1 WO 2022000781A1 CN 2020114323 W CN2020114323 W CN 2020114323W WO 2022000781 A1 WO2022000781 A1 WO 2022000781A1
Authority
WO
WIPO (PCT)
Prior art keywords
sound
vibrating
ring portion
magnetic
vibration
Prior art date
Application number
PCT/CN2020/114323
Other languages
English (en)
Chinese (zh)
Inventor
梁平
赵彬
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 WO2022000781A1 publication Critical patent/WO2022000781A1/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
    • 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
    • H04R9/06—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.
  • a related art sound-generating device includes a basin frame, a vibration system fixed to the basin frame, and a magnetic circuit system having a magnetic gap and driving the vibration system to vibrate.
  • the vibration system includes a diaphragm for vibrating and producing sound.
  • the width of the ring portion of the diaphragm is limited, and some products have higher requirements on stiffness and distortion, and the diaphragm structure of the prior art cannot meet the requirements of product stiffness and distortion.
  • the purpose of the utility model is to provide a sounding device which can increase the resonance frequency and reduce the low frequency distortion.
  • the present invention provides a sound-generating device, which includes a vibration system and a magnetic circuit system that drives the vibration system to vibrate, the vibration system includes a vibrating membrane for vibrating and producing sound; the vibration membrane includes a vibrating membrane. a folded ring part which is bent and extended outwards from the periphery of the vibrating part; A concave portion is provided on the side of the folded ring portion close to the fixed portion and/or on the side of the folded ring portion close to the vibrating portion.
  • the folded ring portion has a rectangular structure with rounded corners, and the folded ring portion includes two oppositely arranged long-axis sides, two oppositely arranged short-axis sides and a connection between the adjacent long-axis sides and all the adjacent long-axis sides.
  • the rounded portion of the short-axis side; the concave portion is arranged on the long-axis side and/or the short-axis side.
  • the concave direction of the concave portion is different from the convex direction of the ring portion.
  • the concave direction of the concave portion is opposite to the convex direction of the ring portion.
  • the diaphragm is made of any one of silica gel, rubber, polyetheretherketone and thermoplastic polyurethane elastomer rubber.
  • the vibrating membrane further includes a spherical top, the vibrating portion is provided with a through hole therethrough, and the spherical top is attached to a side of the vibrating portion away from the magnetic circuit system and completely covers the vibrating portion. through hole.
  • the sounding device further includes a basin frame, and the fixing portion 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.
  • a concave portion is provided on the side of the ring portion close to the fixing portion and/or the side of the ring portion near the vibration portion.
  • the arrangement of this structure reduces the loop width of the loop portion, that is, reduces the vibration area of the loop portion, thereby increasing the resonance frequency of the sound-emitting device and reducing low-frequency distortion.
  • the rounded portion of the folded ring portion is not provided with a concave structure, which ensures the rigidity of the diaphragm, thereby effectively avoiding the problem of rocking when the diaphragm vibrates and emits sound.
  • 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-emitting device 100, which includes a vibration system 1 and a magnetic circuit system 2 having a magnetic gap 10 and driving the vibration system 1 to vibrate.
  • the vibration system 1 includes a diaphragm 11 for vibrating and producing sound;
  • the vibrating film 11 includes a vibrating portion 111 , a ring portion 112 that is bent and extended outward from the periphery of the vibrating portion 111 , and a side of the ring portion 112 that is bent and extended away from the vibrating portion 111 and is extended with the vibrating portion 111 .
  • the magnetic circuit system 2 is relatively fixed to the fixed portion 113 .
  • a concave portion 114 is provided on the side of the ring portion 112 close to the fixing portion 113 and/or the side of the ring portion 112 near the vibration portion 111 .
  • the arrangement of this structure reduces the loop width of the loop portion 112 , that is, reduces the vibration area of the loop portion 122 , thereby increasing the resonance frequency of the sound-emitting device 100 and reducing low-frequency distortion.
  • the folded ring portion 112 has a rectangular structure with rounded corners. the rounded corners 1123 of the long-axis side 1121 and the short-axis side 1122.
  • the recessed portion 114 is disposed on the side of the long-axis side 1121 and/or the short-axis side 1122 that is close to the fixing portion 113 , and the recessed portion 114 is recessed in the same direction as the folding ring.
  • the convex directions of the parts 112 are different, and the concave direction of the concave part 114 is opposite to the convex direction of the ring part 112 .
  • the recessed portion 114 may also be disposed on the side of the long-axis side 1121 and/or the short-axis side 1122 close to the vibrating portion 111 , and the specific position thereof can be set according to actual conditions.
  • the recessed portion 114 is provided on the long-axis side 1121 and/or the short-axis side 1122, but the rounded portion 1123 is not provided with a recessed structure, the purpose of which is to ensure the diaphragm The stiffness of the diaphragm 11 can be effectively avoided when the vibrating membrane 11 vibrates and sounds.
  • the diaphragm 11 is made of any one of silicone, rubber, polyetheretherketone, and thermoplastic polyurethane elastomer rubber. Of course, it is not limited to this, and the diaphragm 11 can also be made of other polymer materials.
  • the vibrating membrane 11 further includes a dome 115 , the vibrating portion 111 is provided with a through hole 1111 therethrough, and the dome 115 is attached to the vibrating portion 111 away from the magnetic circuit One side of the system 2 and completely cover the through hole 1111 .
  • the sounding device 100 further includes a basin frame 3 , and the fixing portion 113 and the magnetic circuit system 2 are respectively fixed on opposite sides of the basin frame 3 .
  • the magnetic circuit system 2 includes a magnetic yoke 21 , a main magnetic steel 22 fixed to the magnetic yoke 21 , a secondary magnetic steel fixed to the magnetic yoke 21 and spaced from the main magnetic steel 22 to form a magnetic gap 10 .
  • the steel 23 and the upper clamping plate 24 covered on the auxiliary magnetic steel 23 .
  • the vibration system 1 further includes a voice coil 12 inserted in the magnetic gap 10 to drive the vibrating membrane 11 to vibrate and sound, and a voice coil 12 fixed to the basin frame 3 and electrically connected to the voice coil 12 .
  • Elastic member 13 .
  • the elastic member 13 is a flexible circuit board.
  • the vibration system 1 further includes an auxiliary diaphragm 14 attached to the side of the elastic member 13 away from the diaphragm.
  • a concave portion is provided on the side of the ring portion close to the fixing portion and/or the side of the ring portion near the vibration portion.
  • the arrangement of this structure reduces the loop width of the loop portion, that is, reduces the vibration area of the loop portion, thereby increasing the resonance frequency of the sound-emitting device and reducing low-frequency distortion.
  • the rounded portion of the ring portion is not provided with a concave structure, which ensures the rigidity of the diaphragm, thereby effectively avoiding the problem of rocking when the diaphragm vibrates and emits sound.

Landscapes

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

Abstract

Le présent modèle d'utilité concerne un appareil de production de son, comprenant un système de vibration et un système de circuit magnétique mettant en vibration le système de vibration. Le système de vibration comprend une membrane destinée à vibrer afin de produire un son ; la membrane comprend une partie vibrante, une partie de bague de pliage qui est courbée vers l'extérieur et s'étend depuis la périphérie de la partie vibrante, et une partie fixe qui est courbée et s'étend depuis le côté de la partie de bague de pliage à distance de la partie vibrante et est fixe par rapport au système de circuit magnétique ; et une partie enfoncée est disposée sur le côté de la partie de bague de pliage à proximité de la partie fixe et/ou le côté de la partie de bague de pliage à proximité de la partie vibrante. Par rapport à l'état de la technique associé, l'appareil de production de son du présent modèle d'utilité améliore la fréquence de résonnance pendant la réduction d'une distorsion basse fréquence.
PCT/CN2020/114323 2020-06-30 2020-09-10 Appareil de production de son WO2022000781A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202021264787.XU CN213094478U (zh) 2020-06-30 2020-06-30 发声器件
CN202021264787.X 2020-06-30

Publications (1)

Publication Number Publication Date
WO2022000781A1 true WO2022000781A1 (fr) 2022-01-06

Family

ID=75622199

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/114323 WO2022000781A1 (fr) 2020-06-30 2020-09-10 Appareil de production de son

Country Status (2)

Country Link
CN (1) CN213094478U (fr)
WO (1) WO2022000781A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104519450A (zh) * 2014-12-26 2015-04-15 汉得利（常州）电子股份有限公司 新型扬声器振膜
CN105721994A (zh) * 2016-04-22 2016-06-29 歌尔声学股份有限公司 微型扬声器
CN205491122U (zh) * 2016-01-26 2016-08-17 瑞声光电科技(常州)有限公司 振动系统及应用所述振动系统的扬声器
WO2016165319A1 (fr) * 2015-04-16 2016-10-20 歌尔声学股份有限公司 Dispositif de haut-parleur et dispositif de serre-poignet intelligent appliquant le haut-parleur
CN206251326U (zh) * 2016-12-07 2017-06-13 深圳市音沃仕科技有限公司 一种扬声器振膜
CN206963073U (zh) * 2017-07-18 2018-02-02 歌尔科技有限公司 一种扬声器
CN208638658U (zh) * 2018-08-06 2019-03-22 瑞声科技(新加坡)有限公司 振膜及应用该振膜的扬声器

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104519450A (zh) * 2014-12-26 2015-04-15 汉得利（常州）电子股份有限公司 新型扬声器振膜
WO2016165319A1 (fr) * 2015-04-16 2016-10-20 歌尔声学股份有限公司 Dispositif de haut-parleur et dispositif de serre-poignet intelligent appliquant le haut-parleur
CN205491122U (zh) * 2016-01-26 2016-08-17 瑞声光电科技(常州)有限公司 振动系统及应用所述振动系统的扬声器
CN105721994A (zh) * 2016-04-22 2016-06-29 歌尔声学股份有限公司 微型扬声器
CN206251326U (zh) * 2016-12-07 2017-06-13 深圳市音沃仕科技有限公司 一种扬声器振膜
CN206963073U (zh) * 2017-07-18 2018-02-02 歌尔科技有限公司 一种扬声器
CN208638658U (zh) * 2018-08-06 2019-03-22 瑞声科技(新加坡)有限公司 振膜及应用该振膜的扬声器

Also Published As

Publication number Publication date
CN213094478U (zh) 2021-04-30

Similar Documents

Publication Publication Date Title
WO2020119239A1 (fr) Haut-parleur
CN110996226A (zh) 发声器件
WO2021097993A1 (fr) Dispositif de génération de sons
US11140490B2 (en) Speaker
CN111641902B (zh) 一种发声器件
WO2020125171A1 (fr) Haut-parleur
US20200213757A1 (en) Speaker
WO2022000780A1 (fr) Dispositif de production de son
WO2022007024A1 (fr) Haut-parleur
WO2020140176A1 (fr) Haut-parleur
WO2022000781A1 (fr) Appareil de production de son
WO2022000687A1 (fr) Dispositif de production de son
WO2022067986A1 (fr) Dispositif de génération de son
US11076238B2 (en) Speaker
WO2019037187A1 (fr) Dispositif de de production sonore
WO2022007170A1 (fr) Dispositif de production de son
WO2022000778A1 (fr) Dispositif de production de son
WO2022000777A1 (fr) Dispositif de production de son
CN218387878U (zh) 一种同轴扬声器
CN109936802A (zh) 振膜和电声换能器
CN214101773U (zh) 发声器件
WO2024000677A1 (fr) Dispositif de production sonore
CN211959518U (zh) 振膜及发声器件
WO2020140173A1 (fr) Haut-parleur
WO2024031827A1 (fr) Haut-parleur

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: 20942860

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: 20942860

Country of ref document: EP

Kind code of ref document: A1