WO2022067974A1 - Dispositif de production de son - Google Patents

Dispositif de production de son Download PDF

Info

Publication number
WO2022067974A1
WO2022067974A1 PCT/CN2020/127831 CN2020127831W WO2022067974A1 WO 2022067974 A1 WO2022067974 A1 WO 2022067974A1 CN 2020127831 W CN2020127831 W CN 2020127831W WO 2022067974 A1 WO2022067974 A1 WO 2022067974A1
Authority
WO
WIPO (PCT)
Prior art keywords
diaphragm
fixed
sound
support portion
voice coil
Prior art date
Application number
PCT/CN2020/127831
Other languages
English (en)
Chinese (zh)
Inventor
宋威
令狐荣林
肖波
孔晨亮
章统
Original Assignee
瑞声声学科技(深圳)有限公司
瑞声光电科技(常州)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, 瑞声光电科技(常州)有限公司 filed Critical 瑞声声学科技(深圳)有限公司
Publication of WO2022067974A1 publication Critical patent/WO2022067974A1/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
    • H04R9/06—Loudspeakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/04—Plane diaphragms
    • H04R7/06—Plane diaphragms comprising a plurality of sections or layers
    • 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

Definitions

  • the invention 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 basin frame, a vibration system respectively fixed to the basin frame and a magnetic circuit system for driving the vibration system to vibrate and produce sound.
  • the vibration system includes a diaphragm and a voice coil that drives the diaphragm to vibrate and produce sound , an elastic conductive member fixed on the side of the basin frame away from the diaphragm and electrically connected to the voice coil, and an auxiliary diaphragm attached to the elastic conductive member away from the diaphragm; the auxiliary diaphragm
  • the diaphragm is used to prevent the sway of the voice coil vibration and to enhance the vibration performance of the vibration system.
  • the auxiliary diaphragm and the elastic conductive member are overlapped, the height of the transmitting device along the vibration direction of the diaphragm is increased, and the volume of the sound-emitting device is further increased.
  • the purpose of the present invention is to provide a sounding device with better space utilization.
  • the present invention provides a sound-generating device, which includes a basin frame, a vibration system respectively fixed to the basin frame, and a magnetic circuit system that drives the vibration system to vibrate and emit sound and has a magnetic gap. It includes a diaphragm fixed on the basin frame and a voice coil inserted in the magnetic gap to drive the diaphragm to vibrate and sound,
  • the vibration system also includes a support plate fixed on the side of the basin frame away from the diaphragm, the support plate includes a first support portion fixed on the side of the basin frame away from the diaphragm, and the first support portion is fixed on the side of the basin frame away from the diaphragm. a second support portion extending in a direction close to the voice coil;
  • the vibration system further includes an elastic conductive member supported and fixed on the side of the first support portion close to the diaphragm and electrically connected with the voice coil, and an elastic conductive member supported and fixed on the second support portion close to the diaphragm Auxiliary diaphragm on one side.
  • the vibration system further includes a skeleton connecting the voice coil and the diaphragm
  • the skeleton includes a skeleton body attached to the side of the diaphragm close to the voice coil, and the skeleton body is formed by the skeleton body.
  • One end away from the diaphragm is bent and extended toward the magnetic gap and connected to the skeleton connecting arm of the voice coil.
  • the elastic conductive member includes a first fixing arm fixed on the first support portion, an elastic arm extending from the first fixing arm in a direction close to the voice coil, and a first fixing arm extending from the elastic arm
  • Two fixed arms, the second fixed arm is fixed on the side of the frame body away from the diaphragm.
  • an end of the first support portion away from the second support portion is provided with a positioning notch formed by a depression, and a side of the first fixing arm close to the support plate is provided with a convex toward the positioning notch. forming positioning bumps, and the positioning bumps are accommodated in the positioning notch.
  • the second support portion includes two and they are respectively formed by extending from opposite ends of the first support portion, and the two second support portions together enclose a accommodating space;
  • the auxiliary diaphragm is accommodated in In the accommodating space, the auxiliary diaphragm includes a folded ring formed in a recessed direction toward the magnetic circuit system, a first fixed portion and a second fixed portion bent and extended from opposite sides of the folded ring.
  • the first fixing part is fixed on one end of the second supporting part close to the accommodating space, and the second fixing part is fixed on the side of the frame body away from the vibrating membrane.
  • the first fixing portion includes a first notch extending therethrough
  • the second fixing portion includes a second notch penetrating thereon
  • the elastic arm passes through the first notch, the folding ring and the The second notch extends toward the voice coil.
  • the elastic arms include two and are arranged symmetrically.
  • two of the supporting plate, the auxiliary diaphragm, and the elastic conductive member are provided correspondingly and disposed on opposite sides of the voice coil.
  • the magnetic circuit system comprises a magnetic yoke fixed on a side of the support plate away from the basin frame, a main magnetic steel unit fixed on the magnetic yoke, and arranged at intervals on the peripheral side of the main magnetic steel unit and A secondary magnetic steel unit that forms the magnetic gap together with the primary magnetic steel unit and a magnetic bowl covered on the primary magnetic steel unit, the peripheral side of the magnetic bowl is abutted and fixed to the secondary magnetic steel unit , the diaphragm is annular, the outer periphery of the diaphragm is fixed on the basin frame, and the inner periphery of the diaphragm is fixed on the magnetic bowl.
  • the support plate is made of metal material.
  • the support plate includes a first support portion fixed on the side of the basin frame away from the vibrating membrane and extending from the first support portion toward the voice coil.
  • the second support part the elastic conductive member is supported and fixed on the side of the first support part close to the diaphragm and is electrically connected with the voice coil, and the auxiliary diaphragm is supported and fixed on the second support.
  • the elastic conductive member and the auxiliary diaphragm are fixed on the same side of the support plate close to the diaphragm; that is, the elastic conductive member and the auxiliary diaphragm are staggered and distributed, and they are not located where
  • the overlapping in the vibration direction of the diaphragm can reduce the height of the sound-emitting device along the vibration direction of the diaphragm, reduce the volume of the sound-emitting device, and have a higher space utilization rate.
  • Fig. 1 is the three-dimensional 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 of a sound-emitting device of the present invention.
  • Fig. 4 is the assembly schematic diagram of the sound-emitting device support plate, the auxiliary diaphragm and the elastic conductive member of the present invention
  • the present invention provides a sound-generating device 100 , which includes a basin frame 1 , a vibration system 2 supported and fixed on the basin frame 1 , and a magnetic gap 30 for driving the vibration system 2 to vibrate and generate sound.
  • the basin frame 1 is made of metal material.
  • the vibration system 2 is used for vibrating and producing sound, and includes a diaphragm 21, a voice coil 22 inserted in the magnetic gap 30 and having a rounded track-shaped structure to drive the diaphragm 21 to vibrate and produce sound, and a skeleton. 23 .
  • the diaphragm 21 is annular, the outer periphery of the diaphragm 21 is fixed to the basin frame, and the inner periphery of the diaphragm 21 is fixed to the magnetic circuit system 3 .
  • the skeleton 23 is used to connect the voice coil 22 and the diaphragm 21, and includes a skeleton body 231 attached to the side of the diaphragm 21 close to the voice coil 22, away from the skeleton body 231.
  • One end of the diaphragm 21 is bent and extended toward the magnetic gap 30 and is connected to the frame connecting arm 232 of the voice coil 22 .
  • the support plate 26 is made of a metal material, which improves the strength and increases the reliability of the sound-emitting device 100 .
  • the support plate 26 is fixed on the side of the basin frame 1 away from the diaphragm 21 , and the support plate 26 includes a first support portion 261 fixed on the side of the basin frame 1 away from the diaphragm 21 and a first support portion 261 fixed on the side of the basin frame 1 away from the diaphragm 21
  • the first support portion 261 extends in a direction close to the second support portion 262 of the voice coil 22 .
  • the elastic conductive member 24 is supported and fixed on the side of the first support portion 261 close to the diaphragm 21 and is electrically connected to the voice coil 22
  • the auxiliary diaphragm 25 is supported and fixed on the second support portion. 262 is close to the side of the diaphragm 21 .
  • the elastic conductive member 24 and the auxiliary diaphragm 25 can enhance the strength of the vibration system 2 .
  • the elastic conductive member 24 and the auxiliary diaphragm 25 are fixed on the same side of the support plate 26 close to the diaphragm 21; that is, the elastic conductive member 24 and the auxiliary diaphragm 25 are staggered.
  • the distribution, which does not overlap in the vibration direction of the diaphragm 21, can reduce the height of the sound-emitting device 100 along the vibration direction of the diaphragm 21, reduce the volume of the sound-emitting device 100, and have higher space utilization.
  • two of the supporting plate 26 , the auxiliary diaphragm 25 and the elastic conductive member 24 are correspondingly arranged on two opposite sides of the voice coil 22 , as shown in FIG. 2 .
  • the matching structure on the left is the same as the matching structure on the right, and only the matching structure on the right is described below.
  • each of the elastic conductive members 24 includes a first fixing arm 241 fixed to the first support portion 261 , an elastic arm 242 extending from the first fixing arm 241 toward the voice coil 22 , and A second fixed arm 243 extending from the elastic arm 242 , the second fixed arm 243 is fixed to the side of the frame body 231 away from the diaphragm 21 ; the elastic arm 242 of each elastic conductive member 24 Two are included and arranged symmetrically.
  • one end of the first support portion 261 away from the second support portion 262 is provided with a recessed positioning notch 2610 , and the side of the first fixing arm 241 close to the support plate 26 is provided with a position close to the support plate 26 .
  • the positioning protrusion 2410 is formed by protruding from the positioning notch 2610, and the positioning protrusion 2410 is accommodated in the positioning notch 2610; that is, with this structure, the elastic conductive member 24 can be quickly positioned to the support plate 26 ; At the same time, through the matching arrangement of the positioning bump 2410 and the positioning gap 2610, the height along the vibration direction of the diaphragm 21 is not increased, and the space utilization rate is high.
  • the second support portions 262 include two and are respectively formed by extending from opposite ends of the first support portion 261 , and the two second support portions 262 together enclose a accommodating space 260 ;
  • the auxiliary The diaphragm 25 is accommodated in the accommodating space 260 , and the auxiliary diaphragm 25 includes a folded ring 252 formed concavely toward the magnetic circuit system 3 , a first folded ring 252 bent and extended from opposite sides of the folded ring 252 .
  • a fixing portion 251 and a second fixing portion 253 the first fixing portion 251 is fixed to the end of the second supporting portion 262 close to the accommodating space 260, and the second fixing portion 253 is fixed to the frame body 231 away from one side of the diaphragm 21 .
  • the first fixing portion 251 includes a first notch 2510 penetrating therethrough
  • the second fixing portion 253 includes a second notch 2530 penetrating thereon
  • the elastic arm 242 passes through the first notch 2510 in sequence.
  • the folding ring 252 and the second gap 2530 extend toward the voice coil 22 . That is to say, the elastic arm 242 and the auxiliary diaphragm 25 are arranged in cooperation, and the elastic arm 242 can extend its length or change its shape, further increasing the strength of the vibration system 2 and enhancing the vibration performance of the vibration system 2 .
  • the elastic arm 242 is accommodated in the folding ring 252 , when the diaphragm 21 vibrates greatly, the elastic arm 242 can be protected, the life of the elastic arm 242 can be prolonged, and the reliability of the elastic conductive member 24 can be increased.
  • the magnetic circuit system 3 includes a magnetic yoke 31 fixed on the side of the support plate 26 away from the basin frame, a main magnetic steel unit 32 fixed on the magnetic yoke 31 , and a main magnetic steel unit 32 arranged at intervals on the main magnetic steel unit 32 .
  • the peripheral side of the secondary magnetic steel unit 33 and the main magnetic steel unit 32 together to form a magnetic gap 30 and the magnetic bowl 34 covered on the main magnetic steel unit 32, the peripheral side of the magnetic bowl 34 is abutted and fixed In the secondary magnetic steel unit 33 , the inner periphery of the diaphragm 21 is fixed to the magnetic bowl 34 .
  • the support plate includes a first support portion fixed on the side of the basin frame away from the vibrating membrane and extending from the first support portion toward the voice coil.
  • the second support part the elastic conductive member is supported and fixed on the side of the first support part close to the diaphragm and is electrically connected with the voice coil, and the auxiliary diaphragm is supported and fixed on the second support.

Abstract

Un dispositif de production de son est divulgué, comprenant un cadre de saladier, et un système de vibration et un système de circuit magnétique, qui entraîne le système de vibration en vibration pour produire un son et comprend un entrefer magnétique, fixé respectivement au cadre de saladier, le système de vibration comprenant une membrane fixée au cadre de saladier, et une bobine acoustique insérée dans l'entrefer magnétique pour entraîner la membrane en vibration pour produire un son ; le système de vibration comprend en outre une plaque de support fixée au côté du cadre de saladier à l'opposé de la membrane ; la plaque de support comprend une première partie de support fixée au côté du cadre de saladier à l'opposé de la membrane, et une seconde partie de support s'étendant vers la bobine acoustique depuis la première partie de support ; et le système de vibration comprend en outre un élément conducteur élastique supporté et fixé au côté de la première partie de support à proximité de la membrane et connecté électriquement à la bobine acoustique, et une membrane auxiliaire supportée et fixée au côté de la seconde partie de support à proximité de la membrane. Par rapport à l'état de la technique, le dispositif de production de son de la présente invention présente un meilleur taux d'utilisation de l'espace.
PCT/CN2020/127831 2020-09-30 2020-11-10 Dispositif de production de son WO2022067974A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202011058988.9A CN112261556B (zh) 2020-09-30 2020-09-30 发声器件
CN202011058988.9 2020-09-30

Publications (1)

Publication Number Publication Date
WO2022067974A1 true WO2022067974A1 (fr) 2022-04-07

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/127831 WO2022067974A1 (fr) 2020-09-30 2020-11-10 Dispositif de production de son

Country Status (2)

Country Link
CN (1) CN112261556B (fr)
WO (1) WO2022067974A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090180648A1 (en) * 2006-07-03 2009-07-16 Pioneer Corporation Speaker device and speaker unit
CN110022517A (zh) * 2018-12-29 2019-07-16 瑞声科技(新加坡)有限公司 发声器件
CN209659603U (zh) * 2019-03-29 2019-11-19 瑞声光电科技(常州)有限公司 发声器件
CN210120658U (zh) * 2019-03-29 2020-02-28 瑞声光电科技(常州)有限公司 发声器件
CN112261546A (zh) * 2020-09-27 2021-01-22 瑞声新能源发展(常州)有限公司科教城分公司 发声器件

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN205726384U (zh) * 2016-04-01 2016-11-23 深圳市三诺声智联股份有限公司 一种超薄扬声器
CN205961400U (zh) * 2016-08-19 2017-02-15 广州视源电子科技股份有限公司 一种低音增强型音箱
CN206923033U (zh) * 2017-06-20 2018-01-23 瑞声科技(新加坡)有限公司 扬声器和电子设备
CN109362005B (zh) * 2018-09-30 2021-03-26 瑞声科技(新加坡)有限公司 发声器件
CN209105449U (zh) * 2018-10-30 2019-07-12 万魔声学科技有限公司 动铁模组及耳机
CN209526874U (zh) * 2018-12-30 2019-10-22 瑞声科技(新加坡)有限公司 扬声器
CN111405425B (zh) * 2019-12-27 2021-03-26 瑞声科技(新加坡)有限公司 发声器件

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090180648A1 (en) * 2006-07-03 2009-07-16 Pioneer Corporation Speaker device and speaker unit
CN110022517A (zh) * 2018-12-29 2019-07-16 瑞声科技(新加坡)有限公司 发声器件
CN209659603U (zh) * 2019-03-29 2019-11-19 瑞声光电科技(常州)有限公司 发声器件
CN210120658U (zh) * 2019-03-29 2020-02-28 瑞声光电科技(常州)有限公司 发声器件
CN112261546A (zh) * 2020-09-27 2021-01-22 瑞声新能源发展(常州)有限公司科教城分公司 发声器件

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Publication number Publication date
CN112261556A (zh) 2021-01-22
CN112261556B (zh) 2021-10-19

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