WO2022061989A1 - Haut-parleur et dispositif électronique - Google Patents

Haut-parleur et dispositif électronique Download PDF

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Publication number
WO2022061989A1
WO2022061989A1 PCT/CN2020/120995 CN2020120995W WO2022061989A1 WO 2022061989 A1 WO2022061989 A1 WO 2022061989A1 CN 2020120995 W CN2020120995 W CN 2020120995W WO 2022061989 A1 WO2022061989 A1 WO 2022061989A1
Authority
WO
WIPO (PCT)
Prior art keywords
hole
membrane
sound
dome
holes
Prior art date
Application number
PCT/CN2020/120995
Other languages
English (en)
Chinese (zh)
Inventor
张龙
张学锋
董献杰
杨虎虎
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 WO2022061989A1 publication Critical patent/WO2022061989A1/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
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/44—Special adaptations for subaqueous use, e.g. for hydrophone
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R31/00—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor
    • H04R31/003—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor for diaphragms or their outer suspension
    • 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
    • H04R9/04—Construction, mounting, or centering of coil
    • H04R9/045—Mounting

Definitions

  • the present application relates to the field of acoustic technology, and in particular, to a speaker and an electronic device.
  • the existing loudspeaker includes a basin frame, a vibration system and a magnetic circuit system arranged in the basin frame, wherein the vibration system includes a sound membrane, a dome and a waterproof and breathable membrane, and the waterproof and breathable membrane is generally arranged between the dome and the sound membrane.
  • the vibration system includes a sound membrane, a dome and a waterproof and breathable membrane
  • the waterproof and breathable membrane is generally arranged between the dome and the sound membrane.
  • the purpose of the present application is to provide a loudspeaker and an electronic device, which can increase the air permeability of the vibration system and effectively improve the sound quality, so that the loudspeaker has better sound effect when in use and can meet higher requirements.
  • a loudspeaker comprising a basin frame, a vibration system and a magnetic circuit system arranged in the basin frame, the vibration system comprising a vibrating membrane and a vibrating membrane for driving the vibrating membrane to produce sound
  • the voice coil, the diaphragm includes a dome with a waterproof and breathable membrane, a dome with a hole structure, and a sound membrane with a through hole, the dome is arranged between the sound membrane and the voice coil, the The through hole is communicated with the hole structure, and the waterproof and breathable membrane is arranged on the side of the sound membrane facing away from the dome and covers the through hole correspondingly.
  • the hole structure includes at least two rows of ventilation holes arranged in a regular array, and the size of the through holes is based on the length and width of the plurality of ventilation holes arranged behind the dome size is set.
  • the through hole includes a plurality of strip-shaped holes arranged side by side, the width of the strip-shaped holes is greater than or equal to the diameter of the ventilation holes, and the length of the strip-shaped holes is greater than or equal to The length of the air hole array after arrangement.
  • the number of the bar-shaped holes is two, and the two bar-shaped holes are symmetrically arranged on both sides of the central axis of the sound membrane in the width direction.
  • the width of the bar-shaped hole is 0.3-0.8 mm; and/or the length of the bar-shaped hole is 7-8 mm.
  • the number of the ventilation holes in each row is 12; and/or the diameter of the ventilation holes is 0.1-0.3 mm.
  • the sound membrane is provided with a folded ring portion recessed from the surface where the dome is connected to the direction away from the dome, and the through hole is provided on the inner side of the folded ring portion .
  • the waterproof and breathable membrane is pasted at the through hole through an adhesive layer.
  • the present application also provides an electronic device including the above-mentioned speaker.
  • the beneficial effect of the present application is that: by arranging the waterproof breathable membrane on the side of the sound membrane facing away from the dome, the air permeability of the vibration system can be increased, and the sound quality can be effectively improved, so that the speaker has a better sound effect when in use, and can satisfy the higher requirements.
  • FIG. 1 is a schematic top view of a speaker provided by an embodiment of the present application.
  • FIG. 2 is a schematic cross-sectional view of the loudspeaker in FIG. 1 .
  • FIG. 3 is an exploded schematic diagram of a speaker provided by an embodiment of the present application.
  • FIG. 4 is a schematic cross-sectional view of a diaphragm provided by an embodiment of the present application.
  • FIG. 5 is an enlarged schematic view at A in FIG. 4 .
  • FIG. 6 is an exploded schematic diagram of a diaphragm provided by an embodiment of the present application.
  • FIG. 7 is a schematic structural diagram of a sound membrane provided by an embodiment of the present application.
  • first and second are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, features defined as “first”, “second” may expressly or implicitly include one or more of said features. In the description of the present application, “plurality” means two or more, unless otherwise expressly and specifically defined.
  • the loudspeaker of the embodiment of the present application includes a basin frame 10 , a vibration system and a magnetic circuit system 40 arranged in the basin frame 10 , and the vibration system includes a diaphragm 20 and a magnetic circuit system 40 .
  • the voice coil 30 is used to drive the diaphragm 20 to vibrate and emit sound.
  • the magnetic circuit system 40 includes a magnetic yoke, a main magnetic steel fixed on the magnetic yoke, and a magnetic gap between the main magnetic steel and the main magnetic steel.
  • the secondary magnet, the voice coil 30 is inserted in the magnetic gap, so that the voice coil 43 can vibrate under the magnetic induction of the main magnet 32 and drive the diaphragm 41 to vibrate and produce sound.
  • the diaphragm 20 includes a waterproof and breathable membrane 22, a dome 23 with a hole structure, and a sound membrane 21 with through holes.
  • the dome 23 is arranged between the sound membrane 21 and the voice coil 30, and the waterproof and breathable membrane 22 is arranged On the side of the sound membrane 21 facing away from the dome 23, the positions of the hole structure and the waterproof and breathable membrane correspond to the positions of the through holes.
  • the basin frame 10 has a storage space
  • the magnetic circuit system 40 is arranged at the bottom of the storage space
  • the acoustic membrane 21 isolates the storage space to form an upper cavity and a lower cavity.
  • the upper cavity is the space where the sound film 21 faces away from the magnetic circuit system 40
  • the lower cavity is the space where the sound film 21 faces the magnetic circuit system 40
  • a pressure difference is generated between the upper cavity and the lower cavity due to the vibration of the sound film 21 .
  • a flowing airflow can be formed between the upper cavity and the lower cavity, which reduces the pressure difference between the upper cavity and the lower cavity, that is, reduces the pressure difference that the sound membrane 21 receives during the vibration process.
  • the resistance of the speaker effectively improves the sound quality of the speaker, so that the speaker has a better sound effect when it is used, and can meet higher requirements.
  • the waterproof and breathable membrane is arranged on the side of the sound membrane 21 facing away from the dome 23, and the position of the waterproof and breathable membrane corresponds to the position of the through hole and the hole structure, it can not only play a waterproof role, but also increase the vibration system.
  • the air volume can improve the sound quality and stereo effect of the speaker.
  • the hole structure includes at least two rows of ventilation holes 231 arranged in a regular array, wherein the size of the through holes is set based on the length and width of the plurality of ventilation holes 231 arranged behind the dome 23 so that each ventilation hole 231 located on the dome 23 of the lower cavity can communicate with the upper cavity through the hole 21 to ensure the ventilation capacity of the diaphragm 20, that is, to ensure that the airflow between the lower cavity and the upper cavity can pass through the ventilation holes 231 And the channel formed by the through hole 21 flows back and forth.
  • the through hole includes a plurality of strip holes 211 arranged side by side, wherein the width of the strip holes 211 is greater than or equal to the diameter of the ventilation holes 231 , and the length of each strip hole 211 is greater than or equal to
  • the length of the vent holes 231 after the array is arranged not only ensures that each vent hole 231 can communicate with the strip hole 211, but also ensures the integrity of the sound film 21, so that the speaker has a good balance effect and higher stability when it vibrates. .
  • the number of strip holes 211 is two, and the two strip holes 211 are symmetrically arranged on both sides of the central axis of the sound membrane 21 in the width direction, so as to avoid the speaker in the present application from working
  • the vibration system generates unbalanced vibration, the stability of the loudspeaker is improved, and the power of the loudspeaker can be increased without uneven vibration, so that the acoustical performance of the loudspeaker of the present application is better.
  • the width of the bar-shaped hole 211 is 0.3-0.8 mm; and/or the length of the bar-shaped hole 211 is 7-8 mm, so as to satisfy the performance of the speaker on the sound membrane 21 during the vibrating sound production process Require.
  • the width and length of the strip hole 211 may also be equal to other values, which may be specifically set according to the width and length of the sound film 21 and the performance requirements of the sound film 21 .
  • the number of the ventilation holes 231 in each row is 12; and/or the diameter of the ventilation holes 231 is 0.1-0.3 mm, so that all the ventilation holes 231 can correspond to the strip holes 211 set up.
  • the sound membrane 21 is provided with a mounting portion 212 recessed from the surface connected to the dome 23 to the direction away from the dome 23 to form a folded ring portion 214, and the through hole is provided on the inner side of the folded ring portion 214, so that The ability to respond more quickly to the vibrations of the air in the lower cavity improves the bass quality of the speaker.
  • the sound membrane 21 includes a fixing portion 213 , a mounting portion 212 and the above-mentioned folded ring portion 214 . Among them, the dome 23 is attached to the mounting portion of the sound membrane 21 .
  • the waterproof and breathable membrane 22 is pasted at the through hole through the adhesive layer 221 .
  • the basin frame 10 includes a bottom frame 11 having the above-mentioned storage space and a top cover 12 covering the opening of the storage space, and the sound membrane 21 is fixed to the top cover 12 and the top cover 12 through the fixing portion 213 .
  • the bottom frame 11, the top cover 12 and the sound membrane 21 can be enclosed to form a sealed space to ensure the tightness.
  • the material for making the sound membrane 21 includes silicone, rubber, PEEK, TPU and other polymer materials
  • the waterproof and breathable membrane includes a fabric layer, an adhesive layer and a waterproof and breathable layer that are laminated and connected in sequence.
  • the waterproof and breathable layer is preferably an expanded polytetrafluoroethylene microporous film layer after biaxial stretching.
  • the size of the micropore is sub-nanometer, and the pore size of the micropore can be between 0.05 ⁇ 15 ⁇ m, which is convenient for the airflow to flow back and forth through the micropore, and the pore size of the micropore is not enough to allow water molecules to pass through.
  • the micro holes enter the lower cavity, and also prevent dust or metal powder from entering the lower cavity through the micro holes and affect the sound quality of the speaker.
  • the voice coil 30 drives the sound film 21 to vibrate under the combined action of the changing current and the magnetic circuit system 40, so that the air near the sound film 21 vibrates and Sound is produced, and during the vibration of the sound membrane 21, the upper cavity and the lower cavity separated by the sound membrane 21 are separated. A pressure difference is generated due to the vibration of the sound membrane 21, which affects the performance of the speaker.
  • the dome 23 and the waterproof and breathable membrane 22 are separately arranged on the upper and lower sides of the sound membrane 21, which can ensure the increased air permeability of the sound membrane 21, and ensure that the airflow between the upper cavity and the lower cavity can pass through the hole structure and
  • the through holes flow back and forth, which reduces the pressure difference between the upper cavity and the lower cavity, that is, reduces the resistance received by the sound membrane 21 during the vibration process, thereby improving the sound quality and stereo effect.
  • the waterproof gas-permeable membrane 22 is disposed on the through hole, it can play a waterproof role.
  • the present application further provides an electronic device including the above-mentioned speaker.
  • the terms “installed”, “connected” and “connected” should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection connected, or integrally connected. It can be a mechanical connection or an electrical connection. It can be directly connected, or indirectly connected through an intermediate medium, and it can be the internal communication between two elements or the interaction relationship between the two elements.
  • installed should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection connected, or integrally connected. It can be a mechanical connection or an electrical connection. It can be directly connected, or indirectly connected through an intermediate medium, and it can be the internal communication between two elements or the interaction relationship between the two elements.
  • a first feature "on” or “under” a second feature may include direct contact between the first and second features, or may include the first and second features Not directly but through additional features between them.
  • the first feature being “above”, “over” and “above” the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is level higher than the second feature.
  • the first feature is “below”, “below” and “below” the second feature includes the first feature being directly below and diagonally below the second feature, or simply means that the first feature has a lower level than the second feature.

Landscapes

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

Abstract

La présente invention concerne un haut-parleur, comprenant un bassin, un système de vibration, et un système de circuit magnétique prévu dans le bassin. Le système de vibration comprend une membrane et une bobine acoustique utilisée pour faire vibrer la membrane et produire un son. La membrane comprend un film imperméable à l'eau et perméable à l'air, une partie supérieure ronde comportant des structures de trous, et un film acoustique comportant des trous traversants ; la partie supérieure ronde est prévue entre le film acoustique et la bobine acoustique ; les trous traversants communiquent avec les structures de trous ; et le film imperméable à l'eau et perméable à l'air est prévu sur le côté du film acoustique opposé à la partie supérieure ronde et couvre de manière correspondante les trous traversants.
PCT/CN2020/120995 2020-09-23 2020-10-14 Haut-parleur et dispositif électronique WO2022061989A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202011010656.3 2020-09-23
CN202011010656.3A CN112188372B (zh) 2020-09-23 2020-09-23 扬声器及电子设备

Publications (1)

Publication Number Publication Date
WO2022061989A1 true WO2022061989A1 (fr) 2022-03-31

Family

ID=73956906

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/120995 WO2022061989A1 (fr) 2020-09-23 2020-10-14 Haut-parleur et dispositif électronique

Country Status (2)

Country Link
CN (1) CN112188372B (fr)
WO (1) WO2022061989A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112188373B (zh) * 2020-09-23 2022-04-29 瑞声新能源发展(常州)有限公司科教城分公司 扬声器及电子设备
CN217011185U (zh) * 2022-02-28 2022-07-19 歌尔股份有限公司 发声装置和电子设备

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KR20150100316A (ko) * 2014-02-25 2015-09-02 주식회사 이엠텍 방수 구조를 가지는 마이크로스피커
CN205647943U (zh) * 2016-03-03 2016-10-12 嘉兴旗声电子有限公司 振膜上设有通气孔的扬声器、受话器
CN207382568U (zh) * 2017-10-23 2018-05-18 上海润欣科技股份有限公司 一种发声装置
CN109218937A (zh) * 2018-08-10 2019-01-15 瑞声科技(新加坡)有限公司 发声器件
CN110798785A (zh) * 2019-10-10 2020-02-14 瑞声科技(新加坡)有限公司 发声器件
CN210351612U (zh) * 2019-06-30 2020-04-17 瑞声科技(新加坡)有限公司 发声器件及扬声器箱

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CN202535521U (zh) * 2012-03-19 2012-11-14 歌尔声学股份有限公司 微型扬声器振膜
US10609463B2 (en) * 2017-10-30 2020-03-31 Taiwan Semiconductor Manufacturing Co., Ltd. Integrated microphone device and manufacturing method thereof
CN208549021U (zh) * 2018-08-01 2019-02-26 瑞声光电科技(常州)有限公司 发声器件
CN208798212U (zh) * 2018-08-29 2019-04-26 瑞声科技(新加坡)有限公司 扬声器
WO2021000119A1 (fr) * 2019-06-29 2021-01-07 瑞声声学科技(深圳)有限公司 Haut-parleur
WO2021000118A1 (fr) * 2019-06-29 2021-01-07 瑞声声学科技(深圳)有限公司 Haut-parleur
CN209964234U (zh) * 2019-07-12 2020-01-17 刘世阳 自泄压防水扬声器
CN110856082B (zh) * 2019-10-10 2021-06-15 瑞声科技(新加坡)有限公司 发声器件
CN111065021B (zh) * 2019-12-06 2021-09-10 瑞声科技(新加坡)有限公司 发声器件
CN211019210U (zh) * 2019-12-13 2020-07-14 瑞声科技(新加坡)有限公司 发声器件

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20150100316A (ko) * 2014-02-25 2015-09-02 주식회사 이엠텍 방수 구조를 가지는 마이크로스피커
CN205647943U (zh) * 2016-03-03 2016-10-12 嘉兴旗声电子有限公司 振膜上设有通气孔的扬声器、受话器
CN207382568U (zh) * 2017-10-23 2018-05-18 上海润欣科技股份有限公司 一种发声装置
CN109218937A (zh) * 2018-08-10 2019-01-15 瑞声科技(新加坡)有限公司 发声器件
CN210351612U (zh) * 2019-06-30 2020-04-17 瑞声科技(新加坡)有限公司 发声器件及扬声器箱
CN110798785A (zh) * 2019-10-10 2020-02-14 瑞声科技(新加坡)有限公司 发声器件

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Publication number Publication date
CN112188372A (zh) 2021-01-05
CN112188372B (zh) 2022-04-29

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