WO2022068009A1 - Dispositif de production de son - Google Patents

Dispositif de production de son Download PDF

Info

Publication number
WO2022068009A1
WO2022068009A1 PCT/CN2020/129785 CN2020129785W WO2022068009A1 WO 2022068009 A1 WO2022068009 A1 WO 2022068009A1 CN 2020129785 W CN2020129785 W CN 2020129785W WO 2022068009 A1 WO2022068009 A1 WO 2022068009A1
Authority
WO
WIPO (PCT)
Prior art keywords
magnetic
ring
positioning
basin frame
sound
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2020/129785
Other languages
English (en)
Chinese (zh)
Inventor
宋威
肖波
令狐荣林
孔晨亮
章统
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AAC Technologies Holdings Shenzhen Co Ltd
AAC Microtech Changzhou Co Ltd
Original Assignee
AAC Acoustic Technologies Shenzhen Co Ltd
AAC Microtech Changzhou Co Ltd
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 AAC Acoustic Technologies Shenzhen Co Ltd, AAC Microtech Changzhou Co Ltd filed Critical AAC Acoustic Technologies Shenzhen Co Ltd
Publication of WO2022068009A1 publication Critical patent/WO2022068009A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/16—Mounting or tensioning of diaphragms or cones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; 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; ELECTRIC HEARING AIDS; 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; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R2499/00—Aspects covered by H04R or H04S not otherwise provided for in their subgroups
    • H04R2499/10—General applications
    • H04R2499/11—Transducers incorporated or for use in hand-held devices, e.g. mobile phones, PDA's, camera's

Definitions

  • the invention relates to the field of electro-acoustic conversion, in particular to a sound-generating device used in portable electronic products.
  • sound-emitting devices are mainly used to convert electrical signals into sound signals.
  • the related art sound-generating device includes a basin frame, a vibration system respectively fixed to the basin frame, and a magnetic circuit system having a magnetic gap, the magnetic circuit including a magnetic yoke fixed to the basin frame and a magnetic yoke fixed to the magnetic yoke. And form the magnetic steel unit of the magnetic gap.
  • the basin frame, the vibration system and the magnetic circuit system together form a sound-emitting inner cavity.
  • the sound-emitting device of the related art extends on the side of the yoke away from the diaphragm to form a rear sound cavity.
  • the sound-absorbing particles are packed in cans; and in order to further increase the sound-emitting cavity space under the premise that the size of the sound-emitting device remains unchanged, the basin frame is made of metal material to protect the structural strength and make room for the sound-emitting cavity.
  • the basin frame includes a basin frame body for fixing the vibrating membrane, and a positioning groove formed by the depression of the side of the basin frame body away from the vibrating membrane.
  • the positioning groove is used to form a positioning assembly for the yoke to Improve the assembly efficiency and fixing strength, but because the basin frame is made of metal material, when the positioning groove is formed, a process gap will be formed on both sides of the positioning groove due to the molding process.
  • the process gaps on both sides of the positioning groove allow the sound-absorbing particles to enter the sound-emitting inner cavity, thereby affecting the sound-emitting performance.
  • the purpose of the present invention is to provide a sounding device with good reliability and excellent sounding performance.
  • 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 for driving the vibration system to vibrate and sound, the vibration system comprising The vibrating membrane of the basin frame and the voice coil that drives the vibrating membrane to vibrate and sound, the magnetic circuit system includes a magnetic yoke fixed on the side of the basin frame away from the vibrating membrane and a magnetic yoke fixed on the magnetic yoke.
  • a magnetic steel unit with a gap, the voice coil is inserted in the magnetic gap, the basin frame, the vibration system and the magnetic circuit system together form a sounding inner cavity, and the basin frame includes a first basin frame and the second pot holder:
  • the first pot frame includes a first pot frame body that supports and fixes the diaphragm, and a first positioning groove formed by a recessed end of the first pot frame body close to the magnetic yoke.
  • the opposite ends of the groove bottom are recessed in a direction away from the magnetic yoke to form a first process gap;
  • the second pot frame includes a second pot frame body that supports and fixes the vibrating film together with the first pot frame body, and a second positioning formed by the concave end of the second pot frame body close to the magnetic yoke a groove, wherein opposite ends of the groove bottom of the second positioning groove are recessed in a direction away from the magnetic yoke to form a second process gap;
  • the second basin frame body is sleeved on the side of the first basin frame body away from the magnetic circuit system, and the second positioning groove and the first positioning groove are completely perpendicular to the vibration direction of the diaphragm. Displacement arrangement, so that the second pot frame body completely covers the first process notch along the vibration direction perpendicular to the vibrating membrane and the first pot frame body completely covers the vibration direction perpendicular to the vibration direction.
  • the magnetic yoke comprises a magnetic yoke body, a first positioning wall and a second positioning wall respectively protruding and extending from the magnetic yoke body to the two basin frames, and the first positioning wall is matched with the first positioning groove And the second positioning wall cooperates with the second positioning groove to locate the relative position of the basin frame and the magnetic yoke.
  • an end of the first pot body close to the diaphragm is flush with an end of the second pot body close to the diaphragm.
  • the position of one end of the first pot body away from the vibrating membrane corresponding to the second positioning groove is flush with the groove bottom of the second positioning groove.
  • one end of the second basin frame body away from the vibrating membrane completely covers the first positioning groove along a position perpendicular to the vibration direction corresponding to the position of the first positioning groove.
  • the basin frame has a rectangular structure
  • the first positioning grooves include two and are respectively located on opposite sides of the first basin frame body
  • the second positioning grooves include two and are respectively located on the first basin frame body.
  • the two first positioning grooves and the two second positioning grooves are respectively located on the four sides of the basin frame.
  • the groove bottom of the first positioning groove is closer to the diaphragm than the groove bottom of the second positioning groove;
  • the second positioning wall includes two and is respectively formed by two opposite sides of the yoke body.
  • the first positioning walls include two and are respectively formed by bending two opposite sides of the yoke body toward the vibrating membrane.
  • the diaphragm includes a first ring-shaped ring portion, a second ring portion surrounding the first ring portion and spaced apart, and a ring-shaped dome;
  • the magnetic steel unit includes a fixed A main magnet on the yoke, a secondary magnet surrounding the main magnet and spaced from the main magnet to form the magnetic gap, and a secondary magnet covered on the main magnet and abutting on the periphery of the main magnet.
  • the magnetic bowl of the secondary magnetic steel; the outer periphery of the second folded ring portion is fixed on the basin frame, and the inner perimeter of the first folded ring portion is fixed on the side of the magnetic bowl away from the secondary magnetic steel and the magnetic steel unit is partially exposed to the diaphragm; the inner periphery of the dome is connected to the outer periphery of the first folded ring, and the outer perimeter of the dome is connected to the outer periphery of the second folded ring. Inner perimeter connection.
  • the vibration system further includes a frame, one end of the frame is connected to the dome, the other end of which extends into the magnetic gap, and the voice coil is supported and fixed to the frame.
  • the magnetic circuit system further comprises a fixing ring
  • the fixing ring comprises a ring-shaped ring body sleeved on the peripheral side of the magnetic bowl, and an end of the ring body away from the magnetic yoke is bent inwardly
  • the extended clamping wall the clamping wall is pressed on the side of the magnetic bowl away from the magnetic yoke, the inner periphery of the first folding ring is fixed to the ring body, the basin frame, the diaphragm , the fixing ring, the magnetic bowl and the magnetic yoke together form the sounding inner cavity.
  • the fixing ring further comprises a reinforcing wall extending from one end of the ring body close to the magnetic yoke, the inner periphery of the first folding ring is bent and extended along the reinforcing wall to form an extending wall, the extending wall The wall is attached and fixed to the reinforcing wall.
  • the basin frame made of metal material is designed as a double basin frame sleeve structure, the second basin frame body is sleeved on the first basin frame body, and the second basin frame body is sleeved on the first basin frame body.
  • the positioning groove and the first positioning groove are completely dislocated, so that the second pot frame body completely covers the first process gap along the vibration direction perpendicular to the diaphragm, and the first pot frame body is along the vibration direction.
  • the second process gap is completely covered perpendicular to the vibration direction.
  • the basin frame design of this structure effectively makes the process gap caused by the molding process to be blocked, and the blocking reliability is good, thereby effectively avoiding the sound cavity after the sound-emitting device is formed.
  • the problem of entering the sound-emitting cavity from the process gap improves the acoustic performance and reliability.
  • 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 the structural schematic diagram of the basin frame of the sounding device of the present invention.
  • FIG. 4 is an exploded view of the basin frame structure of the sounding device of the present invention.
  • FIG. 5 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 basin frame 1 , a vibration system 2 and a magnetic circuit system 3 .
  • the vibration system 2 and the magnetic circuit system 3 are respectively fixed to the basin frame 1 , and the vibration system 2 drives the magnetic circuit system 3 to vibrate and emit sound.
  • the basin frame 1 is made of a metal material.
  • the volume of the sound-emitting cavity 10 of the sound-emitting device 100 can be effectively increased, or the volume of the sound-emitting cavity can be the same. , which can effectively reduce the appearance size.
  • the vibration system 2 includes a diaphragm 21 fixed to the basin frame 1 and a voice coil 22 that drives the diaphragm 21 to vibrate and produce sound.
  • the diaphragm 21 includes a first ring-shaped ring portion 211 , a second ring-shaped portion 212 surrounding the first ring portion 211 and spaced apart, and a ring-shaped dome 213 .
  • the inner peripheral edge of the spherical top 213 is connected to the outer peripheral edge of the first folding ring portion 211
  • the outer peripheral edge of the spherical top 213 is connected to the inner peripheral edge of the second folding ring 212 .
  • the vibration system 2 further includes a frame 23 , one end of the frame 23 is connected to the dome 213 , the other end of which extends into the magnetic gap 20 , and the voice coil 22 supports fixed to the frame 23 .
  • the magnetic circuit system 3 includes a magnetic yoke 31 fixed on the side of the basin frame 1 away from the diaphragm 21 , and a magnetic steel unit 32 with a magnetic gap 20 fixed on the magnetic yoke 31 .
  • the voice coil 22 inserted in the magnetic gap 20 .
  • the basin frame 1 , the vibration system 2 and the magnetic circuit system 3 together form a sounding inner cavity 10 .
  • the basin frame 1 is a metal basin frame, including a first basin frame 11 and a second basin frame 12 .
  • the first pot frame 11 includes a first pot frame body 111 for supporting and fixing the diaphragm 21 and a first positioning groove 112 formed by a recessed end of the first pot frame body 111 close to the magnetic yoke 31 .
  • the opposite ends of the groove bottom of the first positioning groove 112 are recessed in a direction away from the magnetic yoke 31 to form a first process gap 113 .
  • the second pot frame 12 includes a second pot frame body 121 that supports and fixes the diaphragm 21 together with the first pot frame body 111 , and an end of the second pot frame body 121 close to the magnetic yoke 31 .
  • the second positioning groove 122 is recessed, and opposite ends of the groove bottom of the second positioning groove 122 are recessed in a direction away from the magnetic yoke 31 to form a second process gap 123 .
  • the first positioning groove 112 and the second positioning groove 122 are provided for positioning and fixing the magnetic yoke 31. On the one hand, it can quickly locate and improve the assembly efficiency, and on the other hand, it can reduce the thickness of the sound-emitting device along the vibration direction. The thinning of the sound emitting device 100 is utilized.
  • the first process gap 113 and the second process gap 123 are formed due to the molding process when the metal pot frame forms the first positioning groove 112 and the second positioning groove 122 .
  • the second pot holder body 121 is sleeved on the side of the first pot holder body 111 away from the magnetic circuit system 3 , and the second positioning groove 122 and the first positioning groove 112 are perpendicular to the
  • the vibration direction of the diaphragm 21 is completely dislocated, so that the second pot frame body 121 completely covers the first process gap 113 along the vibration direction perpendicular to the diaphragm 21 , and the first pot frame body 111 is The second process gap 123 is completely covered along the direction perpendicular to the vibration 21 .
  • the combination of the first pot frame 11 and the second pot frame 12 makes the first process gap 113 of the pot frame 1 blocked by the second pot frame body 121 , and the second process gap 123 is blocked by the first pot frame body 111 .
  • Blocking, the first basin frame 11 and the second basin frame 12 are shielded from each other, so that the basin frame 1 as a whole is equivalent to a non-process gap structure, which avoids the sound-emitting inner cavity 10 and the outside world (especially the rear sound cavity formed by the sound-emitting device).
  • the problem of communication is avoided, so that the sound-absorbing particles in the rear acoustic cavity are prevented from entering the sound-emitting inner cavity 10, and the acoustic performance and reliability of the sound-emitting device are improved.
  • the magnetic yoke 31 includes a magnetic yoke body 311 and a first positioning wall 312 and a second positioning wall 313 respectively protruding from the magnetic yoke body 311 toward the basin frame 1 .
  • the first positioning wall 312 cooperates with the first positioning groove 112 and the second positioning wall 313 cooperates with the second positioning groove 122 to locate the relative position of the basin frame 1 and the magnetic yoke 31 .
  • the first positioning wall 312 is clamped and fixed in the first positioning groove 112
  • the second positioning wall 313 is clamped and fixed in the second positioning groove 122 , so that the magnetic circuit system 3 is fixed by the magnetic yoke 31 . Fixed on the basin frame 1.
  • first pot frame body 111 and the second pot frame body 121 jointly support the vibration system 2 and the magnetic circuit system 3, it is preferable that the end of the first pot frame body 111 close to the diaphragm 21 and the One end of the second pot body 121 close to the diaphragm 21 is flush, so the fixing stability and reliability of the diaphragm 21 are better.
  • one end of the first basin body 111 away from the diaphragm 21 corresponds to the position of the second positioning groove 122 and is flush with the groove bottom of the second positioning groove 122 . That is, the end of the first pot body 111 away from the diaphragm 21 is closer to the diaphragm 21 than the end of the second pot body 121 away from the diaphragm 21 . Since the second process notch 123 is lower than the groove bottom of the second positioning groove 122 , when the first pot holder body 111 is flush with the groove bottom of the second positioning groove 122 , the second process notch 123 is completely covered.
  • the end of the second pot body 121 away from the diaphragm 21 corresponds to the position of the first positioning groove 112 and completely covers the first positioning groove 112 perpendicular to the vibration direction.
  • the bottom of the first positioning groove 112 is lower than that of the first positioning groove 112 , and when the second pot holder body 121 is flush with the bottom of the first positioning groove 112 , the first process gap 113 is completely covered.
  • the basin frame 1 has a rectangular structure
  • the first positioning grooves 112 include two and are located on opposite sides of the first basin frame body 111 respectively
  • the second positioning grooves 122 include two The two first positioning grooves 112 and the two second positioning grooves 122 are respectively located on the four sides of the basin frame 1 to improve the magnetic yoke 31 stability.
  • the groove bottom of the first positioning groove 112 is closer to the diaphragm 21 than the groove bottom of the second positioning groove 122 , that is, the side of the first pot frame body 111 away from the diaphragm 21 is closer to the second pot frame body 121
  • the side away from the vibrating membrane 21 is closer to the vibrating membrane 21 , so that the first basin frame 11 can reduce part of the material relative to the second basin frame 12 and reduce the production cost.
  • the second positioning wall 313 includes two correspondingly, and is formed by two opposite sides of the yoke body 311 respectively.
  • the first positioning walls 312 include two and are respectively formed by bending two opposite sides of the yoke body 311 toward the vibrating membrane 21 .
  • the magnetic steel unit 32 includes a main magnetic steel 321 fixed to the yoke 31 , a secondary magnetic steel 322 surrounding the main magnetic steel 321 and spaced from the main magnetic steel 321 to form the magnetic gap 20 , and a cover.
  • the main magnetic steel 321 is in contact with the magnetic bowl 323 fixed to the auxiliary magnetic steel 322 at its periphery.
  • the outer peripheral edge of the second folding ring portion 212 is fixed to the basin frame 1, and the inner peripheral edge of the first folding ring portion 211 is fixed to the side of the magnetic bowl 323 away from the auxiliary magnetic steel 322 so that all The magnetic steel unit 32 is partially exposed to the diaphragm 323 , so that the design of the magnetic circuit system 3 is more flexible.
  • the magnetic circuit system 3 further includes a fixing ring 33
  • the fixing ring 33 includes a ring-shaped ring body 331 sleeved on the peripheral side of the magnetic bowl 323, and the ring body 331 is away from the One end of the magnetic yoke 31 is bent inwardly and extends to a clamping wall 332 .
  • the clamping wall 332 is pressed on the side of the magnetic bowl 323 away from the magnetic yoke 31 , and the inner periphery of the first folding ring 211 is fixed to the ring body 331 , thereby enhancing the fixing ring 33 and the magnetic bowl 323 fixed strength and reliability.
  • the basin frame 1 , the diaphragm 21 , the fixing ring 33 , the magnetic bowl 323 and the magnetic yoke 31 together enclose the sounding cavity 10 .
  • the fixing ring 33 further includes a reinforcing wall 333 extending from one end of the ring body 331 close to the magnetic yoke 31 , and the inner periphery of the first folding ring 211 is formed by bending and extending along the reinforcing wall 333
  • the extension wall 214 is attached and fixed to the reinforcing wall 333 to improve the structural fixing strength and reliability of the diaphragm 21, the first folding ring 211 and the magnetic circuit system 3, and improve the stability.
  • the basin frame made of metal material is designed as a double basin frame sleeve structure, the second basin frame body is sleeved on the first basin frame body, and the second basin frame body is sleeved on the first basin frame body.
  • the positioning groove and the first positioning groove are completely dislocated, so that the second pot frame body completely covers the first process gap along the vibration direction perpendicular to the diaphragm, and the first pot frame body is along the vibration direction.
  • the second process gap is completely covered perpendicular to the vibration direction.
  • the basin frame design of this structure effectively makes the process gap caused by the molding process to be blocked, and the blocking reliability is good, thereby effectively avoiding the sound cavity after the sound-emitting device is formed.
  • the problem of entering the sound-emitting cavity from the process gap improves the acoustic performance and reliability.

Landscapes

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

Abstract

La présente invention concerne un dispositif de production de son, comprenant un cadre, une membrane, et une culasse magnétique. Le cadre comprend un premier cadre et un second cadre. Le premier cadre comprend un premier corps de cadre pour supporter la membrane, une première rainure de positionnement formée par évidement d'un côté du premier corps de cadre, et des premières encoches de traitement formées dans deux côtés opposés de la première rainure de positionnement. Le second cadre comprend un second corps de cadre, une seconde rainure de positionnement formée par évidement d'un côté du second corps de cadre, et des secondes encoches de traitement formées dans deux côtés opposés du fond de la seconde rainure de positionnement. Le second corps de cadre est emmanché sur le premier corps de cadre, et la seconde rainure de positionnement et la première rainure de positionnement sont complètement décalées, de sorte que le second corps de cadre recouvre complètement les premières encoches de traitement le long d'une direction perpendiculaire à la direction de vibration et que le premier corps de cadre recouvre complètement les secondes encoches de traitement le long d'une direction perpendiculaire à la direction de vibration. Par rapport à l'état de la technique, le dispositif de production de son présente une bonne fiabilité et une bonne performance de production de son.
PCT/CN2020/129785 2020-09-30 2020-11-18 Dispositif de production de son Ceased WO2022068009A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202011059034.XA CN112261551B (zh) 2020-09-30 2020-09-30 发声器件
CN202011059034.X 2020-09-30

Publications (1)

Publication Number Publication Date
WO2022068009A1 true WO2022068009A1 (fr) 2022-04-07

Family

ID=74233935

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/129785 Ceased WO2022068009A1 (fr) 2020-09-30 2020-11-18 Dispositif de production de son

Country Status (2)

Country Link
CN (1) CN112261551B (fr)
WO (1) WO2022068009A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024130812A1 (fr) * 2022-12-22 2024-06-27 瑞声光电科技(常州)有限公司 Dispositif d'émission sonore

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114845220B (zh) * 2022-03-31 2025-02-11 歌尔股份有限公司 发声装置及电子设备
WO2025086034A1 (fr) * 2023-10-23 2025-05-01 瑞声光电科技(常州)有限公司 Dispositif de production sonore

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1042384A (ja) * 1996-07-22 1998-02-13 Matsushita Electric Ind Co Ltd 複合型スピーカ
JP5825522B2 (ja) * 2012-02-02 2015-12-02 アルパイン株式会社 スピーカ装置
CN205812380U (zh) * 2016-07-23 2016-12-14 歌尔股份有限公司 扬声器
CN107820169A (zh) * 2017-10-18 2018-03-20 深圳精拓创新科技有限公司 扬声器及提高扬声器灵敏度的方法
CN109788406A (zh) * 2018-12-27 2019-05-21 歌尔股份有限公司 磁路系统和发声装置
CN110381424A (zh) * 2019-06-26 2019-10-25 瑞声科技(新加坡)有限公司 发声器件
CN110446145A (zh) * 2019-06-26 2019-11-12 瑞声科技(新加坡)有限公司 发声器件
CN110881161A (zh) * 2019-12-26 2020-03-13 歌尔科技有限公司 扬声器及电子设备
CN210781318U (zh) * 2019-05-21 2020-06-16 瑞声科技(新加坡)有限公司 发声器

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4300437A (en) * 1977-07-13 1981-11-17 Hinger Touch-Tone Corp. Sectionalized musical drums
KR100255247B1 (ko) * 1997-11-06 2000-05-01 김충지 스피커용 진동판 제조방법
CN106068001A (zh) * 2016-05-05 2016-11-02 北京世纪东方通讯设备有限公司 一种送受话器
CN106851493A (zh) * 2017-01-22 2017-06-13 瑞声科技(新加坡)有限公司 扬声器箱及其灌装吸声粉料的方法
CN107426655B (zh) * 2017-08-31 2021-11-16 歌尔股份有限公司 发声装置模组
CN209105413U (zh) * 2018-12-28 2019-07-12 Tcl通力电子（惠州）有限公司 发声器件及音箱
CN210663100U (zh) * 2019-07-26 2020-06-02 广东志高暖通设备股份有限公司 空调器及其电控盒
CN211531298U (zh) * 2019-12-30 2020-09-18 瑞声科技(新加坡)有限公司 发声器件

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1042384A (ja) * 1996-07-22 1998-02-13 Matsushita Electric Ind Co Ltd 複合型スピーカ
JP5825522B2 (ja) * 2012-02-02 2015-12-02 アルパイン株式会社 スピーカ装置
CN205812380U (zh) * 2016-07-23 2016-12-14 歌尔股份有限公司 扬声器
CN107820169A (zh) * 2017-10-18 2018-03-20 深圳精拓创新科技有限公司 扬声器及提高扬声器灵敏度的方法
CN109788406A (zh) * 2018-12-27 2019-05-21 歌尔股份有限公司 磁路系统和发声装置
CN210781318U (zh) * 2019-05-21 2020-06-16 瑞声科技(新加坡)有限公司 发声器
CN110381424A (zh) * 2019-06-26 2019-10-25 瑞声科技(新加坡)有限公司 发声器件
CN110446145A (zh) * 2019-06-26 2019-11-12 瑞声科技(新加坡)有限公司 发声器件
CN110881161A (zh) * 2019-12-26 2020-03-13 歌尔科技有限公司 扬声器及电子设备

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024130812A1 (fr) * 2022-12-22 2024-06-27 瑞声光电科技(常州)有限公司 Dispositif d'émission sonore

Also Published As

Publication number Publication date
CN112261551A (zh) 2021-01-22
CN112261551B (zh) 2021-06-11

Similar Documents

Publication Publication Date Title
WO2021000082A1 (fr) Dispositif de génération de son
WO2021258439A1 (fr) Dispositif de génération de son
WO2022067988A1 (fr) Dispositif de production de son
JP7447236B2 (ja) スピーカ
WO2022007024A1 (fr) Haut-parleur
WO2022006929A1 (fr) Haut-parleur
WO2022068009A1 (fr) Dispositif de production de son
WO2022041459A1 (fr) Caisson de haut-parleur
WO2024044924A1 (fr) Haut-parleur coaxial
CN112468910A (zh) 扬声器箱及其装配工艺
CN115379360A (zh) 扬声器箱
CN118678269A (zh) 发声装置和电子设备
CN120282072A (zh) 发声装置、发声模组及电子设备
WO2022041438A1 (fr) Caisson de haut-parleur
CN110062316A (zh) 发声器件
CN214177552U (zh) 发声器件
CN214101779U (zh) 发声器件
CN214101755U (zh) 发声器件
CN108696808A (zh) 扬声器及扬声器装配方法
WO2022067985A1 (fr) Dispositif de production de son
WO2022067991A1 (fr) Dispositif de génération de son
WO2022007020A1 (fr) Haut-parleur
WO2022126778A1 (fr) Dispositif de production de son
WO2022006923A1 (fr) Haut-parleur
WO2021223255A1 (fr) Dispositif sonore

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: 20956028

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: 20956028

Country of ref document: EP

Kind code of ref document: A1