WO2022006923A1 - Haut-parleur - Google Patents

Haut-parleur Download PDF

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Publication number
WO2022006923A1
WO2022006923A1 PCT/CN2020/101828 CN2020101828W WO2022006923A1 WO 2022006923 A1 WO2022006923 A1 WO 2022006923A1 CN 2020101828 W CN2020101828 W CN 2020101828W WO 2022006923 A1 WO2022006923 A1 WO 2022006923A1
Authority
WO
WIPO (PCT)
Prior art keywords
diaphragm
supporting
edge
basin frame
elastic arm
Prior art date
Application number
PCT/CN2020/101828
Other languages
English (en)
Chinese (zh)
Inventor
肖波
孔晨亮
令狐荣林
章统
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 WO2022006923A1 publication Critical patent/WO2022006923A1/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 present application relates to the field of electro-acoustics, and in particular, to a loudspeaker.
  • the purpose of the present application is to provide a loudspeaker with better acoustic performance.
  • a loudspeaker comprising a housing with a housing space, a vibration system accommodated in the housing, a magnetic circuit system for driving the vibration system, and a flexible circuit connected with the vibration system board
  • the magnetic circuit system is provided with a magnetic gap
  • the casing includes a bottom cover and a basin frame assembled with the bottom cover to form the receiving space
  • the vibration system includes an upper diaphragm, and the upper vibration a lower diaphragm with opposite and spaced apart diaphragms
  • a voice coil for driving the upper diaphragm to vibrate and produce sound the voice coil is located in the magnetic gap
  • the flexible circuit board is sandwiched between the upper diaphragm and the Between the lower vibrating membranes, the upper vibrating membrane includes a first vibrating membrane and a second vibrating membrane, the first vibrating membrane and the second vibrating membrane are respectively located on opposite sides of the magnetic circuit system, the flexible
  • the circuit board includes a first connection edge connected with the basin frame
  • the basin frame is in the shape of a rectangular ring
  • the first diaphragm and the second diaphragm are respectively fixed on one end of the basin frame away from the lower diaphragm, and are located at the end of the basin frame.
  • the first diaphragm and the second diaphragm are located on both sides of the magnetic circuit system.
  • the loudspeaker further includes a frame for transmitting the vibration of the voice coil to the upper diaphragm, the frame includes a first holding part for receiving and fixing the voice coil, for supporting The first supporting part of the first diaphragm, the second supporting part for supporting the second diaphragm, the first connecting part for connecting the first supporting part and the first holding part, and the At the second connecting part connecting the second supporting part and the first holding part, the first supporting part and the second supporting part are connected on both sides of the first holding part, the first The connecting edge is sandwiched and fixed between the basin frame and the lower diaphragm, and the second connecting edge is fixed on the first connecting portion and the second connecting portion.
  • the first support portion includes a first support bottom wall and a first annular side wall extending from the periphery of the first support bottom wall perpendicularly to the first support bottom wall, the first support bottom wall A first avoidance cavity is formed by surrounding with the first annular side wall;
  • the second support portion includes a second support bottom wall and a second support bottom wall extending from the periphery of the second support bottom wall perpendicularly to the second support bottom wall.
  • Two annular side walls, the second support bottom wall and the second annular side wall enclose a second avoidance cavity; the elastic arm is located in the first avoidance cavity and the second avoidance cavity, so
  • the lower diaphragm is located between the annular side wall and the inner wall of the basin frame.
  • first holding portion, the first connecting portion, the second connecting portion, the first supporting portion and the second supporting portion are integrally formed.
  • the first diaphragm includes a first folded ring portion, a first fixed portion formed by extending from the outer periphery of the first folded ring portion, and a first ball formed by extending from the inner periphery of the first folded ring portion the top, the first ball top is connected to the first support part, the first fixing part is arranged on the basin frame;
  • the second diaphragm includes a second ring a second fixing part extending from the outer peripheral edge of the folded ring part and a second spherical top part extending from the inner peripheral edge of the second foldable ring part, the second spherical top part is connected to the second supporting part, the second The fixing part is arranged on the basin frame; in the direction of the elastic arm facing the upper diaphragm, the elastic arm is arranged opposite to the first ball top and the second ball top.
  • the lower diaphragm includes a third diaphragm and a fourth diaphragm
  • the third diaphragm includes a third ring portion and a third fixing portion extending from the outer periphery of the third ring portion
  • the fourth diaphragm includes a fourth folded ring portion and a fourth fixed portion extending from the outer periphery of the fourth folded ring portion
  • the third fixed portion is arranged on the basin frame
  • the fourth The fixing part is arranged on the basin frame
  • the third folding ring part is arranged opposite to the first folding ring part
  • the fourth folding ring part is arranged opposite to the second folding ring part.
  • the third diaphragm further includes a first fixed edge extending from the inner periphery of the third ring portion
  • the fourth diaphragm further includes a first fixing edge extending from the inner periphery of the fourth ring portion.
  • Two fixed edges, one end of the first annular side wall facing away from the first supporting bottom wall extends toward the inner wall of the basin frame to form a first supporting edge
  • the second annular side wall facing away from the second supporting bottom One end of the wall extends toward the inner wall of the basin frame to form a second supporting edge
  • the first fixing edge is arranged on the first supporting edge
  • the second fixing edge is arranged on the second supporting edge.
  • the magnetic circuit system includes a magnetic yoke fixedly connected to the middle of the bottom cover, a main magnetic steel assembled in the center of the magnetic yoke, assembled on the magnetic yoke and surrounding the main magnetic steel
  • a secondary magnetic steel arranged to form the magnetic gap, a primary pole core attached above the primary magnetic steel, and a secondary pole core attached to the secondary magnetic steel, and the voice coil is suspended from the magnetic gap
  • the skeleton further includes a second holding portion formed on the first connecting portion and the second connecting portion and having a receiving cavity, the secondary magnetic steel is contained in the receiving cavity, and the voice coil is abuts on the second holding portion.
  • the speaker further includes an upper cover, the upper cover is arranged on the basin frame, the upper cover includes a first pressing part and a second pressing part, and the first pressing part is pressed against Pressed on the first diaphragm, the second pressing portion is pressed on the second diaphragm.
  • the beneficial effect of the present application is that: by arranging the lower diaphragm and the upper diaphragm opposite to each other, the vibration of the upper diaphragm can be strengthened, the polarization of the upper diaphragm can also be prevented, and the acoustic performance of the speaker is improved, and the flexible circuit board includes a connection with the basin frame.
  • the second diaphragm and the second diaphragm are located on the opposite sides of the voice coil, so that the space opposite to the first diaphragm and the second diaphragm can be used to place the elastic arm.
  • the vibrating membranes are arranged opposite and dislocated from the lower vibrating membrane, so that the interference of the elastic arm to the vibration of the lower vibrating membrane can be prevented, so that the problem of pure sound will not be caused, and the acoustic performance of the loudspeaker will be better.
  • FIG. 1 is a schematic diagram of the overall structure of a speaker according to an embodiment of the application
  • Fig. 2 is the exploded schematic diagram of the loudspeaker in Fig. 1;
  • Fig. 3 is the sectional view along A-A of Fig. 1;
  • Fig. 4 is the partial structure schematic diagram of the loudspeaker in Fig. 1;
  • Fig. 5 is another partial structural schematic diagram of the loudspeaker in Fig. 1;
  • Fig. 6 is the structural representation of the skeleton in Fig. 1;
  • FIG. 7 is a schematic structural diagram of the magnetic circuit system in FIG. 1;
  • an embodiment of the present application provides a loudspeaker.
  • the loudspeaker in this embodiment includes a housing 1 with an accommodation space, a vibration system 2 accommodated in the housing 1, and used to drive the vibration system. 2 of the magnetic circuit system 3 and the flexible circuit board 4 that elastically supports the vibration system 2 .
  • the casing 1 in this embodiment includes a basin frame 11 and a bottom cover 12 assembled with the basin frame 11 to form a receiving space, and the casing 1 further includes an upper cover 13 , and the upper cover 13 is covered on the On the basin frame 11 , the upper cover 13 is preferably adapted to the size of the magnetic circuit system 3 for covering the magnetic circuit system 3 .
  • the vibration system 2 in this embodiment is used for sound production.
  • the upper diaphragm 21 in this embodiment includes a first diaphragm 211 and a second diaphragm 212 , and the first diaphragm 211 and the second diaphragm 212 are located on opposite sides of the magnetic circuit system 3 .
  • the first vibrating membrane 211 and the second vibrating membrane 212 are respectively fixed on the magnetic circuit system 3 and the end of the basin frame 11 away from the lower vibrating membrane 22, and the first vibrating membrane 211 and the second vibrating membrane 212 are located in the magnetic circuit system 3 and the basin.
  • the voice coil 23 only occupies part of the space, and the magnetic circuit system 3 and the voice coil 23 are similar in size, so in this embodiment, the voice coil 23 and the magnetic circuit system 3 only occupy Part of the space between the first diaphragm 211 and the second diaphragm 212, and the part of the space opposite to the first diaphragm 211 and the second diaphragm 212 can be used to place the flexible circuit board 4, and there is enough space for design
  • the shape of the flexible circuit board 4 and the area of the lower diaphragm 22 can be appropriately increased to prevent the upper diaphragm 21 from swaying, thereby improving the distortion of the speaker.
  • the flexible circuit board 4 in this embodiment is disposed between the upper diaphragm 21 and the lower diaphragm 22, and the voice coil 23 is energized through the replaceable wires of the flexible circuit board 4.
  • the flexible circuit The plate 4 includes a first connecting edge 41 connected with the basin frame 11, a second connecting edge 42 connected with the voice coil 23, and an elastic arm 43 connecting the first connecting edge 41 and the second connecting edge 42.
  • the voice coil 23 and the magnetic circuit system 3 occupy most of the storage space, so there is not enough space for avoiding the elastic arm 43, so that the elastic arm 43 is arranged in the space formed by the upper diaphragm 21 and the lower diaphragm 22 facing each other.
  • the elastic arm 43 and the lower diaphragm 22 are caused to overlap each other in the direction of the elastic arm 43 toward the upper diaphragm 21, so that the elastic arm 43 interferes with the vibration of the lower diaphragm 22, and the speaker has a pure sound problem.
  • the elastic arm 43 is disposed opposite to the upper vibrating membrane 21 in the direction in which the elastic arm 43 faces the upper vibrating membrane 21 , and is disposed at a dislocation from the lower vibrating membrane 22 .
  • the direction in which the elastic arm 43 faces the upper diaphragm 21 refers to the Z direction in the figure, which is also the direction perpendicular to the bottom cover 12 .
  • the relative arrangement of the elastic arm 43 and the upper diaphragm 21 means that in the Z direction, the upper diaphragm 21 and the elastic arm 43 are overlapped, and the dislocation of the elastic arm 43 and the lower diaphragm 22 refers to the Z direction,
  • the elastic arm 43 does not have an overlapping portion with the lower diaphragm 22 .
  • the elastic arm 43 and the lower diaphragm 22 do not have overlapping parts in the Z direction, the elastic arm 43 will not interfere with the vibration of the lower diaphragm 22, so it will not cause the problem of pure sound of the speaker and make the speaker's Better acoustic performance.
  • the voice coil 23 in this embodiment is in the shape of a rectangular ring
  • the frame 11 is rectangular
  • the long side of the voice coil 23 faces the width direction of the frame 11
  • the first diaphragm 211 and the first diaphragm 211 are in the shape of a rectangular ring.
  • the two diaphragms 212 are located on both sides of the long side of the voice coil 23 , that is, in the longitudinal direction of the basin frame 11
  • the first diaphragm and the second diaphragm 212 are located on both sides of the magnetic circuit system 3 .
  • the long side of the voice coil 23 faces the width direction of the basin frame 11 , more space is reserved on both sides of the long side of the voice coil 23 for placing the first diaphragm 211 , the second diaphragm 212 and the flexible circuit board 4 The elastic arm 43.
  • the speaker in this embodiment further includes a frame 24 for transmitting the vibration of the voice coil 23 to the upper diaphragm 21 .
  • the frame 24 includes a first frame for receiving and holding the voice coil 23 .
  • a connecting portion 244 and a second connecting portion 245 for connecting the second supporting portion 243 and the first holding portion 241.
  • the first supporting portion 242 and the second supporting portion 243 are connected on both sides of the first holding portion 241.
  • the connecting edge 41 is sandwiched and fixed between the basin frame 11 and the lower diaphragm 22
  • the second connecting edge 42 is fixed on the first connecting portion 244 and the second connecting portion 245 .
  • the first supporting portion 242 in this embodiment includes a first supporting bottom wall 2421 and a first annular side wall 2422 extending from the periphery of the first supporting bottom wall 2421 perpendicular to the first supporting bottom wall 2421 .
  • the support bottom wall 2421 and the first annular side wall 2422 are enclosed to form a first avoidance cavity 2423 ;
  • the second support portion 243 includes a second support bottom wall 2431 and the second support bottom wall 2431 is perpendicular to the second support bottom wall 2431 from the periphery of the second support bottom wall 2431
  • the extended second annular side wall 2432, the second supporting bottom wall 2431 and the second annular side wall 2432 enclose a second avoidance cavity 2433;
  • the elastic arm 43 is located in the first avoidance cavity 2423 and the second avoidance cavity 2433,
  • the lower diaphragm 22 is located between the annular side wall and the inner wall of the basin frame 11 .
  • the elastic arm 43 Since the elastic arm 43 is arranged in the first avoidance cavity 2423 and the second avoidance cavity 2433, the elastic arm 43 can be prevented from moving between the inner wall of the basin frame 11 and the frame 24 during the vibration process, thereby ensuring the acoustic performance of the speaker stability.
  • the length of the elastic arm 43 in this embodiment can be appropriately increased, so that the stress received during the vibration process is reduced, and the phenomenon of wire breakage due to the short elastic arm 43 is avoided.
  • the first holding portion 241 , the first connecting portion 244 , the second connecting portion 245 , the first supporting portion 242 and the second supporting portion 243 are integrally formed. Therefore, the strength of the frame 24 can be ensured, and it is not easily damaged during the vibration process.
  • the first diaphragm 211 in this embodiment includes a first ring portion 2111 , a first fixing portion 2112 extending from the outer periphery of the first ring portion 2111 , and a first ring portion 2112 .
  • the first spherical top 2113 is formed by extending from the inner peripheral edge of the 2111.
  • the first spherical top 2113 is connected to the first support portion 242.
  • a supporting bottom wall 2421 is similar in size and shape, and the first fixing portion 2112 includes a first fixing side portion 2112a fixed on the casing 1 and two ends of the first fixing side portion 2112a fixed on the magnetic circuit system 3 respectively.
  • the second fixed edge portion 2112b is connected; so that the first ring portion 2111 is located between the first annular side wall 2422 and the inner wall of the basin frame 11 ; the second diaphragm 212 includes the second ring portion 2121, which is formed from the second ring
  • the second fixing portion 2122 extending from the outer peripheral edge of the ring portion 2121 and the second spherical top portion 2123 extending from the inner peripheral edge of the second folded ring portion 2121 are connected to the second supporting portion 243.
  • Two spherical tops are disposed on the second supporting bottom wall 2431 , and the size and shape of the second spherical top and the second supporting bottom wall 2431 are similar.
  • the first ball top 2113 in this embodiment includes a first support inner edge 2113a and a first clamping plate 2113b. Specifically, the inner periphery of the first support inner edge 2113a is enclosed to form a first incision. Hole 2113c, the first clamp plate 2113b abuts on the first support inner edge 2113a to cover the first center hole 2113c, specifically, the first clamp plate 2113b is arranged on the first support bottom wall 2421, the first support inner edge 2113a Abutting on the edge of the first clamping plate 2113b; the second ball top 2123 includes a second supporting inner edge 2123a and a second clamping plate 2123b, specifically, the inner periphery of the second supporting inner edge 2123a forms a second centering hole 2123c, The second clamping plate 2123b abuts on the second supporting inner edge 2123a to cover the second incision hole 2123c. Specifically, the second clamping plate 2123b is disposed on the second supporting bottom wall 2431, and the second supporting supporting plate
  • the lower diaphragm 22 in this embodiment includes a third diaphragm 221 and a fourth diaphragm 222
  • the third diaphragm 221 includes a third folded ring portion 2211 and a third folded ring portion 2211
  • the fourth diaphragm 222 includes a fourth ring portion 2221 and a fourth fixing portion 2222 extending from the outer periphery of the fourth ring portion 2221.
  • the third fixing portion 2212 is disposed in the basin On the frame 11, the fourth fixing portion 2222 is arranged on the basin frame 11.
  • the third fixing portion 2212 is arranged on the first connecting edge 41, and the fourth fixing portion 2222 is arranged on the first connecting edge 41. More specifically , the first connecting edge 41 is bonded to the basin frame 11, the third fixing portion 2212 is bonded to the first connecting edge 41, and the fourth fixing portion 2222 is bonded to the first connecting edge 41.
  • the three-folding ring portion 2211 is arranged opposite to the first folding-ring portion 2111 , and the fourth folding-ring portion 2221 is arranged opposite to the second folding-ring portion 2121 .
  • the third diaphragm 221 and the fourth diaphragm 222 are respectively disposed on both sides of the long side of the voice coil 23 .
  • the third diaphragm 221 in this embodiment further includes a first fixing edge 2213 extending from the inner periphery of the third folded ring portion 2211
  • the fourth diaphragm 222 further includes a first fixed edge 2213 from the fourth folded ring portion
  • the second fixing edge 2223 is formed by extending from the inner periphery of 2221.
  • the end of the first annular side wall 2422 facing away from the first supporting bottom wall 2421 extends toward the inner wall of the basin frame 11 to form a first supporting edge 2424.
  • the second annular side wall 2432 is facing away from the second One end of the supporting bottom wall 2431 extends toward the basin frame 11 to form a second supporting edge 2434 .
  • the vibration of the voice coil 23 can be simultaneously transmitted to the first diaphragm 211 and the second diaphragm 212 of the upper diaphragm 21 and the third diaphragm 221 and the fourth diaphragm 222 of the lower diaphragm 22 through the frame 24, so that the speaker is better acoustic performance.
  • the magnetic circuit system 3 in this embodiment includes a magnetic yoke 31 fixedly connected to the middle of the bottom cover 12 , a main magnetic steel 32 assembled in the center of the magnetic yoke 31 , and assembled in the magnetic yoke 31 and surrounding the main magnetic steel 32 to form a secondary magnetic steel 33 to form a magnetic gap, a main pole core 34 attached to the main magnetic steel 32 and a secondary pole core 35 attached to the secondary magnetic steel 33, the voice coil 23 is suspended Placed in the magnetic gap, specifically, the voice coil 23 is sleeved on the main magnetic steel 32 and the side wall of the voice coil 23 is located between the main magnetic steel 32 and the auxiliary magnetic steel 33, and the skeleton 24 also includes a The first connecting portion 244 and the second connecting portion 245 have a second holding portion 246 with an accommodating cavity 2461, the secondary magnet 33 is accommodated in the accommodating cavity 2461, and the voice coil 23 abuts on the receiving cavity 2461. on the second holding portion 246
  • the two secondary magnets 33 are symmetrically arranged with respect to the long sides of the main magnet 32 , and the two long sides of the voice coil 23 are respectively inserted into two in the magnetic gap formed by the secondary magnetic steel 33 and the main magnetic steel 32 .
  • the upper cover 13 is covered on the basin frame 11 , and the upper cover 13 includes a first pressing portion 131 and a second pressing portion 132 .
  • the first pressing portion The 131 is pressed against the first diaphragm 211
  • the second pressing portion 132 is pressed against the second diaphragm 212 .
  • the first fixed edge portion 2112a and the third fixed edge portion 2122a are respectively fixed on the basin frame 11; the second fixed edge portion 2112b and the fourth fixed edge Between the magnetic circuit systems 3 , more specifically, the second fixed side portion 2112 b and the fourth fixed side portion 2122 b are sandwiched and fixed between the upper cover 13 and the secondary pole core 35 , respectively.
  • the basin frame 11 has a matching portion 111 that is matched with the upper cover 13 , the upper cover 13 is covered on the matching portion 111 , and the first fixing portion 2112 and the second fixing portion 2122 respectively have at least parts located in the matching portion 111 and the upper cover. 13, the stability of the fixing of the first diaphragm 211 and the second diaphragm 212 is further enhanced.

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

Abstract

L'invention concerne un haut-parleur. Le haut-parleur est caractérisé en ce qu'il comprend un boîtier avec un espace de logement, un système de vibration logé dans le boîtier, un système de circuit magnétique pour commander le système de vibration, et une carte de circuit flexible pour supporter de manière élastique le système de vibration, dans lequel en agençant une membrane de vibration inférieure et une membrane de vibration supérieure opposées l'une à l'autre, la vibration de la membrane de vibration supérieure peut être améliorée, et la polarisation de la membrane de vibration supérieure peut être empêchée, de manière à améliorer la performance acoustique du haut-parleur ; la carte de circuit flexible comprend un premier bord de connexion qui est connecté à un cadre, un second bord de connexion qui est connecté à une bobine acoustique et un bras élastique connectant le premier bord de connexion et le second bord de connexion ; et la membrane vocale supérieure comprend un premier corps de membrane vocale et un second corps de membrane vocale, le premier corps de membrane vocale et le second corps de membrane vocale étant situés sur deux côtés opposés de la bobine acoustique, de sorte qu'un espace opposé au premier corps de membrane vocale et au second corps de membrane vocale peut être utilisé pour loger le bras élastique, et dans la direction dans laquelle le bras élastique fait face à la membrane supérieure, le bras élastique est opposé à la membrane vibrante supérieure et est disposé pour être décalé par rapport à la membrane inférieure, de sorte que l'interférence du bras élastique sur la vibration de la membrane vibrante inférieure peut être évitée, et la performance acoustique du haut-parleur est ainsi améliorée.
PCT/CN2020/101828 2020-07-06 2020-07-14 Haut-parleur WO2022006923A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202021322381.2 2020-07-06
CN202021322381.2U CN212936183U (zh) 2020-07-06 2020-07-06 扬声器

Publications (1)

Publication Number Publication Date
WO2022006923A1 true WO2022006923A1 (fr) 2022-01-13

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/101828 WO2022006923A1 (fr) 2020-07-06 2020-07-14 Haut-parleur

Country Status (2)

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CN (1) CN212936183U (fr)
WO (1) WO2022006923A1 (fr)

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WO2023193321A1 (fr) * 2022-04-07 2023-10-12 瑞声声学科技(深圳)有限公司 Dispositif de production de son

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CN117082418B (zh) * 2023-10-16 2024-02-20 瑞声光电科技(常州)有限公司 发声器件

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CN109769178A (zh) * 2018-12-30 2019-05-17 瑞声声学科技(深圳)有限公司 扬声器单体
CN109862484A (zh) * 2018-12-30 2019-06-07 瑞声声学科技(深圳)有限公司 一种扬声器
CN109862488A (zh) * 2018-12-30 2019-06-07 瑞声声学科技(深圳)有限公司 一种扬声器
US20190230441A1 (en) * 2018-01-24 2019-07-25 AAC Technologies Pte. Ltd. Acoustic device

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Publication number Priority date Publication date Assignee Title
EP2725820A1 (fr) * 2012-10-29 2014-04-30 Em-tech. Co., Ltd. Module de vibrations pour un transducteur acoustique
CN205961439U (zh) * 2016-07-20 2017-02-15 瑞声科技(新加坡)有限公司 扬声器
CN108322869A (zh) * 2018-01-24 2018-07-24 瑞声科技(新加坡)有限公司 发声器件
US20190230441A1 (en) * 2018-01-24 2019-07-25 AAC Technologies Pte. Ltd. Acoustic device
CN109769178A (zh) * 2018-12-30 2019-05-17 瑞声声学科技(深圳)有限公司 扬声器单体
CN109862484A (zh) * 2018-12-30 2019-06-07 瑞声声学科技(深圳)有限公司 一种扬声器
CN109862488A (zh) * 2018-12-30 2019-06-07 瑞声声学科技(深圳)有限公司 一种扬声器

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023193321A1 (fr) * 2022-04-07 2023-10-12 瑞声声学科技(深圳)有限公司 Dispositif de production de son

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