WO2021174572A1 - Enceinte de haut-parleur - Google Patents

Enceinte de haut-parleur Download PDF

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Publication number
WO2021174572A1
WO2021174572A1 PCT/CN2020/078766 CN2020078766W WO2021174572A1 WO 2021174572 A1 WO2021174572 A1 WO 2021174572A1 CN 2020078766 W CN2020078766 W CN 2020078766W WO 2021174572 A1 WO2021174572 A1 WO 2021174572A1
Authority
WO
WIPO (PCT)
Prior art keywords
magnetic part
basin frame
diaphragm
sound
magnetic
Prior art date
Application number
PCT/CN2020/078766
Other languages
English (en)
Chinese (zh)
Inventor
令狐荣林
肖波
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 WO2021174572A1 publication Critical patent/WO2021174572A1/fr

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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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H04R9/025—Magnetic circuit

Definitions

  • the invention relates to the field of sound and electricity, in particular to a speaker box used in portable electronic products.
  • the speaker box includes a box body with an accommodating cavity and a sound device arranged in the box body, and a sound hole is penetrated through the box body.
  • the sound emitting device in the related art only has one sound emitting surface, which is not conducive to the improvement of the sensitivity of the speaker box.
  • the object of the present invention is to provide a speaker box, which can increase the effective vibration area, thereby improving the sensitivity of the speaker box.
  • the present invention provides a loudspeaker box, which includes a box body with a containing cavity and a sound emitting device.
  • a sound hole communicating with the front cavity is penetrated on the box body, a monomer leakage hole communicating with the rear cavity is penetrated on the partition board, and the sound generating device is suspended in the front cavity,
  • the sound device includes a basin frame abutting with the partition, a vibration system fixed on the basin frame, and a magnetic circuit system that drives the vibration system to vibrate and emit sound.
  • a basin frame leakage hole communicated with a body leakage hole the vibration system includes an upper diaphragm and a lower diaphragm that are respectively fixed on opposite sides of the basin frame and have opposite vibration directions, and an upper sound that drives the upper diaphragm to vibrate and produce sound
  • a ring, a lower voice coil that drives the lower diaphragm to vibrate and produce sound, and a skeleton connecting the lower voice coil and the lower diaphragm, the upper diaphragm, the lower diaphragm, and the basin frame are enclosed to form a housing
  • the accommodating space of the magnetic circuit system the accommodating space communicates with the leakage hole of the basin frame, and the magnetic circuit system includes an inner magnetic part, which is arranged around the inner magnetic part and forms an inner magnetic part with the inner magnetic part.
  • the third pole core on one side of the lower diaphragm, the middle magnetic part has an air passage connecting the outer magnetic gap and the inner magnetic gap, the second pole core is fixed to the basin frame, and the upper
  • the voice coil is inserted into the inner magnetic gap, and the lower voice coil is inserted into the outer magnetic gap.
  • the basin frame leakage hole is located at a position corresponding to the basin frame and the magnetic circuit system, and the outer magnetic part has a leakage passage connecting the outer magnetic gap and the basin frame leakage hole.
  • the leakage hole of the basin frame, the air passage and the leakage passage are located on the same straight line.
  • the outer magnetic part is composed of a plurality of outer permanent magnets arranged around the middle magnetic part, and two adjacent outer permanent magnets are arranged at intervals, wherein the two adjacent to the basin leakage hole The outer permanent magnets are arranged at intervals to form the leakage channel.
  • the middle magnetic part is in a continuous ring structure, the middle magnetic part includes a first surface and a second surface arranged opposite to each other in a vibration direction, and the air passage extends from the first surface to the second surface.
  • the surface is recessed.
  • the vibration system further includes a skeleton, the skeleton including a first connecting portion connected with the lower diaphragm, a second connecting portion connected with the lower voice coil, and connecting the first connecting portion and the lower voice coil.
  • the third connecting portion of the second connecting portion is a first connecting portion connected with the lower diaphragm, a second connecting portion connected with the lower voice coil, and connecting the first connecting portion and the lower voice coil.
  • both the first connecting portion and the second connecting portion have a ring structure.
  • the vibration system further includes an upper dome and a lower dome arranged in the receiving space, and the upper dome is respectively connected to the upper diaphragm and the upper sound at two opposite sides in the vibration direction. Ring connection, the opposite sides of the lower dome in the vibration direction are respectively connected with the first connecting portion and the lower diaphragm.
  • the magnetic circuit system further includes a fourth pole core fixed on the side of the outer magnetic part facing the lower diaphragm, and the fourth pole core is fixed to the basin frame.
  • the sound emitting device further includes an upper end cover and a lower end cover, the upper diaphragm is sandwiched between the basin frame and the upper end cover, and the upper end cover is provided for the upper diaphragm to emit sound outwards.
  • the lower diaphragm is sandwiched between the basin frame and the lower end cover, and the lower end cover has a second sound hole for the lower diaphragm to emit sound outward.
  • the speaker box of the present invention arranges the upper diaphragm and the lower diaphragm to vibrate in opposite directions and is driven by the upper voice coil and the lower voice coil respectively, and the sound is generated.
  • the device is arranged to be suspended in the front cavity, so that the sound generated by the vibration of the upper diaphragm and the lower diaphragm is transmitted to the outside of the speaker box through the sound outlet, so that the effective vibration area of the speaker box Significantly improve the sensitivity of the speaker box; at the same time, through the structural design of the magnetic circuit system, the magnetic circuit system has the inner magnetic gap, the outer magnetic gap, and the inner magnetic gap and the outer magnetic gap.
  • Figure 1 is a perspective view of a preferred embodiment of the speaker box of the present invention.
  • Figure 2 is a cross-sectional view of the speaker box shown in Figure 1 along the A-A direction;
  • Figure 3 is a cross-sectional view of the speaker box shown in Figure 1 along the B-B direction;
  • Fig. 4 is a schematic diagram of the structure of the sound emitting device in the speaker box shown in Fig. 2;
  • FIG. 5 is a schematic diagram of the structure of the sound emitting device in the speaker box shown in FIG. 3;
  • Fig. 6 is a three-dimensional exploded view of the sound generating device shown in Fig. 5;
  • FIG. 7 is a schematic structural diagram of part of the structure of the sound generating device shown in FIG. 6 after being assembled;
  • FIG. 8 is a schematic diagram of the assembled structure of the magnetic circuit system in the sound generating device shown in FIG. 6;
  • Fig. 9 is a schematic structural diagram of the magnetic circuit system shown in Fig. 8 from another angle.
  • the speaker box includes a box body 100 having an accommodating cavity 100A and a sound emitting device 200 arranged in the box body 100.
  • the box body 100 is provided with a partition 101 that divides the containing chamber 100A into a front chamber 100B and a rear chamber 100C, and the partition 101 is provided with a monomer leakage hole 102 that communicates with the rear chamber 100C.
  • the box body 100 is provided with a sound outlet 103 communicating with the front cavity 100B, and the sound emitting device 200 is suspended in the front cavity 100B.
  • the sound generating device 200 includes a basin frame 1 abutting against the partition 101, a vibration system 3 fixed to the basin frame 1, and a magnetic circuit system 5 that drives the vibration system 3 to vibrate and produce sound.
  • the basin frame 1 has a rectangular structure.
  • the basin frame 1 is provided with a basin frame leakage hole 1A through it.
  • the basin frame leakage hole 1A is located on the side wall where the basin frame 1 abuts the partition 101 so that the basin frame leakage hole 1A communicates with the monomer leakage hole 102.
  • the vibration system 3 includes an upper diaphragm 31, a lower diaphragm 33, an upper voice coil 34, and a lower voice coil 35.
  • the upper diaphragm 31 and the lower diaphragm 33 are respectively fixed to two opposite sides of the basin frame 1. Side, and the upper diaphragm 31, the lower diaphragm 33, and the basin frame 1 enclose to form a receiving space 200A for accommodating the magnetic circuit system 5, the receiving space 200A and the basin frame leakage hole 1A Connected, the upper voice coil 34 drives the upper diaphragm 31 to vibrate and sound, and the lower voice coil 35 drives the lower diaphragm 33 to vibrate and sound.
  • the opposite vibration directions of the upper diaphragm 31 and the lower diaphragm 33 mean that the instantaneous vibration directions are opposite. Specifically, when the upper diaphragm 31 vibrates in a direction away from the magnetic circuit system 5, the lower diaphragm 33 also vibrates in a direction away from the magnetic circuit system 5; the upper diaphragm 31 vibrates in a direction closer to the magnetic circuit system 5. When the circuit system 5 vibrates, the lower diaphragm 33 also vibrates in a direction close to the magnetic circuit system 5.
  • the vibration system 3 further includes a skeleton 36 which connects the lower voice coil 35 and the lower diaphragm 33.
  • the frame 36 includes a first connecting portion 361 connected to the lower diaphragm 33, a second connecting portion 362 connected to the lower voice coil 35, and connecting the first connecting portion 361 and the second connecting portion 362 ⁇ third connection part 363.
  • first connecting portion 361 and the second connecting portion 362 both have a ring structure. It can be understood that the implementation of the first connecting portion 361 and the second connecting portion 362 is not limited to this; for example, in other embodiments, the first connecting portion 361 may be provided in a flat plate shape; The second connecting portion 362 may be configured to be composed of multiple split structures, and each split structure is connected to the lower voice coil 35 respectively.
  • the skeleton 36 is an integrally formed structure. It can be understood that, in other embodiments, the first connecting portion 361, the second connecting portion 362, and the third connecting portion 363 may be formed by welding.
  • the vibration system 3 further includes an upper dome 37 and a lower dome 38 arranged in the receiving space 200A, and the upper dome 37 is opposite to each other on opposite sides of the vibration direction X.
  • the upper diaphragm 31 is connected to the upper voice coil 34
  • the lower dome 38 is connected to the first connecting portion 361 and the lower diaphragm 33 on opposite sides along the vibration direction X, respectively.
  • the upper dome 37 and the lower dome 38 may also be arranged outside the receiving space 200A, and the upper diaphragm 31 is opposite to each other in the vibration direction X.
  • the sides are respectively connected to the upper voice coil 34 and the upper dome 37, and the lower diaphragm 33 is respectively connected to the lower dome 38 and the first connecting portion 361 along opposite sides of the vibration direction X .
  • the sound emitting device 200 further includes an upper end cover 7 and a lower end cover 9, and the upper diaphragm 31 is sandwiched between the basin frame 1 and the upper end cover 7.
  • the upper end cover 7 has a first sounding hole 71 for the upper diaphragm 31 to emit sound outward
  • the lower diaphragm 33 is sandwiched between the basin frame 1 and the lower end cover 9, and the lower end
  • the cover 9 has a second sound hole 91 for the lower diaphragm 33 to sound outward.
  • the arrangement of the upper end cover 7 and the lower end cover 9 can better fix the upper diaphragm 31 and the lower diaphragm 33 on the basin frame 1.
  • the box body 100 includes an upper bottom surface 104 opposite to the upper end cover 7 and spaced apart, and a lower bottom surface 105 opposite to the lower end cover 9 and spaced apart.
  • the upper bottom surface 104 is provided with A plurality of first cushion blocks 106 supporting the upper end cover 7, and a plurality of second cushion blocks 107 supporting the lower end cover 9 are provided on the lower bottom surface 105.
  • the sound generating device 200 is suspended in the front cavity 100B through the supporting action of the plurality of first pad blocks 106 and the plurality of second pad blocks 107.
  • the first spacer block 106 and the second spacer block 107 are integrally formed with the box body 100. It is understood that, in other embodiments, the first spacer block 106 may also It is a cushion block fixed on the upper bottom surface 104, and the second cushion block 107 may also be a cushion block fixed on the lower bottom surface 105.
  • the magnetic circuit system 5 includes an inner magnetic part 51, a middle magnetic part 52 arranged around the inner magnetic part 51 and forming an inner magnetic gap 5A between the inner magnetic part 51, and a middle magnetic part 52 arranged around the inner magnetic part 52 and The outer magnetic portion 53 forming an outer magnetic gap 5B between the inner magnetic portion 52 and the first pole core 54 fixed on the side of the inner magnetic portion 51 facing the upper diaphragm 31 is fixed on the The middle magnetic portion 52 and the outer magnetic portion 53 face the second pole core 55 on the side of the upper diaphragm 31 and are fixed to the inner magnetic portion 51 and the middle magnetic portion 52 toward the lower diaphragm.
  • the third pole core 56 on the 33 side, the middle magnetic portion 52 has an air passage 52A connecting the outer magnetic gap 5B and the inner magnetic gap 5A, and the second pole core 55 is fixed to the basin frame 1.
  • the upper voice coil 34 is inserted into the inner magnetic gap 5A
  • the lower voice coil 35 is inserted into the outer magnetic gap 5B.
  • the sound emitting device 200 is arranged to be suspended In the front cavity 100B, the sound generated by the vibration of the upper diaphragm 31 and the lower diaphragm 33 is transmitted to the outside of the speaker box through the sound outlet 103, so that the effective vibration area of the speaker box is greatly increased In order to improve the sensitivity of the speaker box; at the same time, because the magnetic circuit system 5 has the inner magnetic gap 5A, the outer magnetic gap 5B, and the air passage connecting the inner magnetic gap 5A and the outer magnetic gap 5B 52A, when the upper diaphragm 31 and the lower diaphragm 33 vibrate, the airflow in the receiving space 200A can pass through the basin frame leakage hole 1A, the monomer leakage hole 102 and the rear cavity 100C Circulation.
  • the diaphragm 33 shares the same magnetic circuit system, which improves the utilization rate of the magnetic circuit.
  • the magnetic circuit system 5 further includes a fourth pole core 57 fixed on the side of the outer magnetic portion 53 facing the lower diaphragm 33, and the fourth pole core 57 is fixed on the Basin frame 1.
  • the inner magnetic gap 5A and the outer magnetic gap 5B can be effectively increased. Therefore, the acoustic performance of the sound emitting device 200 can be improved, and it is also conducive to the light and thin design of the sound emitting device 200.
  • the second pole core 55 and the fourth pole core 57 are both fixed to the basin frame 1, the magnetic circuit system 5 can be better held on the basin frame 1.
  • first pole core 54 and the second pole core 55 are located on the same horizontal plane, and the third pole core 56 and the fourth pole core 57 are also located on the same horizontal plane.
  • the basin frame leakage hole 1A is located at a position corresponding to the basin frame 1 and the magnetic circuit system 5, and the outer magnetic portion 53 has a connection between the outer magnetic gap 5B and the basin frame.
  • the leak passage 53A of the leak hole 1A communicates with the containing space 200A through the outer magnetic gap 5B, the leakage passage 53A, and the air passage 52A (that is, the basin frame leakage hole 1A is indirectly connected to the receiving space 200A).
  • the containment space 200A is connected).
  • the basin frame leakage hole 1A may be located at a position where the basin frame 1 does not correspond to the magnetic circuit system 5 (that is, the basin frame leakage hole 1A is directly connected to the The accommodating space 200A is connected), and accordingly, the outer magnetic part may not have a leakage channel.
  • the basin frame leakage hole 1A, the air passage 52A, and the leakage passage 53A are located on the same straight line. In this way, the space between the magnetic circuit system 5 and the upper diaphragm 31 and the distance between the air flow in the inner magnetic gap 5A and the outside can be reduced.
  • the inner magnetic part 51 is an inner permanent magnet. It is understandable that in other embodiments, the inner magnetic portion 51 may also be formed by superimposing two, three, etc., inner permanent magnets along the vibration direction X, and there may also be a sandwich between two adjacent inner permanent magnets. Pole core.
  • the middle magnetic part 52 has a continuous ring structure.
  • the middle magnetic part 52 includes a first surface 521 and a second surface 523 disposed opposite to each other along the vibration direction X.
  • the air passage 52A is free from the The first surface 521 is recessed toward the second surface 523.
  • the middle magnetic part 52 is a middle permanent magnet
  • the first surface 521 is the surface of the middle magnetic part 52 facing the second pole core 55
  • the second surface 523 is the The middle magnetic part 52 faces the surface of the third pole core 56.
  • the arrangement of the middle magnetic part 52 is not limited to this.
  • the first surface may also be the surface of the middle magnetic portion 52 facing the third pole core 56.
  • the second surface is the surface of the middle magnetic portion 52 facing the third pole core 56.
  • the surface of the second pole core 55; the middle magnetic portion 52 may be formed by superimposing two or three middle permanent magnets in a continuous ring structure along the vibration direction X, and between two adjacent middle permanent magnets A pole core may also be sandwiched; the middle magnetic part 52 may also be composed of a plurality of middle permanent magnets arranged around the inner magnetic part 51, and two adjacent middle permanent magnets are arranged at intervals. Wherein, at least two middle permanent magnets adjacent to the leakage passage 53A are arranged at intervals to form the air passage 52A.
  • the outer magnetic portion 53 is composed of a plurality of outer permanent magnets arranged around the middle magnetic portion 52, and two adjacent outer permanent magnets are arranged at intervals. Wherein, the two outer permanent magnets adjacent to the basin frame leakage hole 1A are spaced apart to form the leakage passage 53A. It can be understood that in other embodiments, the outer magnetic portion 53 may also be an outer permanent magnet in a ring structure. Accordingly, the outer permanent magnet needs to be provided at the position corresponding to the leak hole of the basin frame. A leakage channel connecting the outer magnetic gap and the basin frame leakage hole.
  • the inner permanent magnets, the middle permanent magnets, and the outer permanent magnets mentioned above usually adopt magnetic steel. It is understandable that the inner permanent magnet, the middle permanent magnet, and the outer permanent magnet can also be natural magnets.
  • the speaker box of the present invention is provided by setting the upper diaphragm 31 and the lower diaphragm 33 to have opposite vibration directions and are driven by the upper voice coil 34 and the lower voice coil 35, respectively, and
  • the sound device 200 is arranged to be suspended in the front cavity 100B, so that the sound generated by the vibration of the upper diaphragm 31 and the lower diaphragm 33 is transmitted to the outside of the speaker box through the sound outlet 103 , So that the effective vibration area of the speaker box is greatly increased to increase the sensitivity of the speaker box; at the same time, through the structural design of the magnetic circuit system 5, the magnetic circuit system 5 has the inner magnetic gap 5A and the outer magnetic gap 5A.
  • the upper voice coil 34 and the lower voice coil 35 into the inner magnetic gap 5A and the outer magnetic gap 5B of the magnetic circuit system 5, respectively, the upper diaphragm 31 and the The diaphragm 33 described below shares the same magnetic circuit system, thereby improving the utilization rate of the magnetic circuit.

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  • 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 une enceinte de haut-parleur capable d'augmenter une aire de vibration effective. L'enceinte de haut-parleur comprend un corps d'enceinte et un dispositif de production sonore. Une cavité de réception est divisée en une cavité avant et une cavité arrière par une plaque de séparation, un trou de fuite unitaire unique de la plaque de séparation est en communication avec la cavité arrière, un trou de sortie sonore du corps d'enceinte est en communication avec la cavité avant, et le dispositif de production sonore est suspendu dans la cavité avant. Le dispositif de production sonore comprend un cadre avec un trou de fuite de cadre, un système de vibration et un système de circuit magnétique, le système de vibration comprenant une membrane vibrante supérieure et une membrane vibrante inférieure qui sont utilisées pour entourer un espace de réception en communication avec le trou de fuite de cadre conjointement avec le cadre, et une bobine acoustique supérieure et une bobine acoustique inférieure qui sont respectivement insérées dans un entrefer magnétique intérieur et un entrefer magnétique extérieur ; et le système de circuit magnétique comprend une partie magnétique interne, une partie magnétique intermédiaire formant l'entrefer magnétique intérieur avec la partie magnétique intérieure, une partie magnétique externe formant l'entrefer magnétique externe avec la partie magnétique intermédiaire, un premier noyau polaire disposé de manière fixe sur la partie magnétique intérieure, un second noyau polaire disposé de manière fixe sur la partie magnétique intermédiaire et la partie magnétique externe, et un troisième noyau polaire disposé de manière fixe sur la partie magnétique intérieure et la partie magnétique intermédiaire, et la partie magnétique intermédiaire est pourvue d'un canal d'air permettant à l'espace magnétique extérieur d'être en communication avec l'espace magnétique intérieur.
PCT/CN2020/078766 2020-03-05 2020-03-11 Enceinte de haut-parleur WO2021174572A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202010148081.5 2020-03-05
CN202010148081.5A CN111343549B (zh) 2020-03-05 2020-03-05 扬声器箱

Publications (1)

Publication Number Publication Date
WO2021174572A1 true WO2021174572A1 (fr) 2021-09-10

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Application Number Title Priority Date Filing Date
PCT/CN2020/078766 WO2021174572A1 (fr) 2020-03-05 2020-03-11 Enceinte de haut-parleur

Country Status (2)

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CN (1) CN111343549B (fr)
WO (1) WO2021174572A1 (fr)

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CN116033318A (zh) * 2021-10-27 2023-04-28 华为终端有限公司 扬声器及电子设备
WO2024036692A1 (fr) * 2022-08-15 2024-02-22 瑞声科技(新加坡)有限公司 Caisson de haut-parleur

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CN213073093U (zh) * 2020-08-26 2021-04-27 瑞声科技(新加坡)有限公司 发声单体及扬声器
CN213426388U (zh) * 2020-09-25 2021-06-11 瑞声科技(新加坡)有限公司 扬声器箱及移动终端
CN213342568U (zh) * 2020-09-25 2021-06-01 瑞声科技(新加坡)有限公司 扬声器箱及移动终端
CN213342570U (zh) * 2020-09-25 2021-06-01 瑞声科技(新加坡)有限公司 扬声器箱及移动终端
CN213426389U (zh) * 2020-09-25 2021-06-11 瑞声科技(新加坡)有限公司 扬声器箱及移动终端
CN213342571U (zh) * 2020-09-25 2021-06-01 瑞声科技(新加坡)有限公司 扬声器箱及移动终端
CN213342569U (zh) * 2020-09-25 2021-06-01 瑞声科技(新加坡)有限公司 扬声器箱及移动终端
CN213342567U (zh) * 2020-09-25 2021-06-01 瑞声科技(新加坡)有限公司 扬声器箱及移动终端
CN114866912A (zh) * 2022-04-02 2022-08-05 歌尔股份有限公司 发声器件、发声模组及终端设备
CN114866913A (zh) * 2022-04-02 2022-08-05 歌尔股份有限公司 发声模组和终端设备
CN114866911A (zh) * 2022-04-02 2022-08-05 歌尔股份有限公司 发声模组和电子设备
WO2024044924A1 (fr) * 2022-08-30 2024-03-07 瑞声光电科技(常州)有限公司 Haut-parleur coaxial
CN117915245A (zh) * 2024-03-19 2024-04-19 基合半导体（宁波）有限公司 扬声器以及扬声器的位移测试方法

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CN116033318A (zh) * 2021-10-27 2023-04-28 华为终端有限公司 扬声器及电子设备
CN116033318B (zh) * 2021-10-27 2023-12-08 华为终端有限公司 扬声器及电子设备
WO2024036692A1 (fr) * 2022-08-15 2024-02-22 瑞声科技(新加坡)有限公司 Caisson de haut-parleur

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