WO2020227956A1 - Système de circuit magnétique et haut-parleur l'utilisant - Google Patents
Système de circuit magnétique et haut-parleur l'utilisant Download PDFInfo
- Publication number
- WO2020227956A1 WO2020227956A1 PCT/CN2019/086980 CN2019086980W WO2020227956A1 WO 2020227956 A1 WO2020227956 A1 WO 2020227956A1 CN 2019086980 W CN2019086980 W CN 2019086980W WO 2020227956 A1 WO2020227956 A1 WO 2020227956A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- magnetic
- circuit system
- cover
- magnetic circuit
- bottom cover
- 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
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
- H04R7/00—Diaphragms for electromechanical transducers; Cones
- H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
- H04R7/12—Non-planar diaphragms or cones
- H04R7/122—Non-planar diaphragms or cones comprising a plurality of sections or layers
- H04R7/125—Non-planar diaphragms or cones comprising a plurality of sections or layers comprising a plurality of superposed layers in contact
-
- 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
-
- 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 edge of the magnetically permeable bottom cover is provided with a bottom side wall extending upward
- the edge of the magnetically permeable top cover is provided with a top side wall extending downward.
- an upwardly extending bottom side wall is provided at the edge of the magnetically conductive bottom cover, and when the magnetically conductive top cover is closed on the magnetically conductive bottom cover, the bottom side wall is connected to the A peripheral wall is formed at the edge of the magnetic top cover.
- the magnetic circuit system and the speaker using it in the present invention have the following beneficial effects:
- Figure 1 is a schematic diagram of the overall structure of a speaker in an embodiment of the present invention.
- FIG. 4 is a schematic diagram of the overall structure of the magnetic circuit system, the voice coil and the connection skeleton in the connected state of the embodiment of the present invention
- a speaker which includes a bottom cover 200 with a receiving cavity 500, a magnetic circuit system 100 assembled on the bottom cover 200, and a magnetic circuit system 100 arranged on the bottom of the magnetic circuit system 100.
- the top cover 300 on the side of the cover 200 and the vibration system 400 connected between the bottom cover 200 and the top cover 300 and connected to the magnetic circuit system 100, wherein the bottom cover 200 includes a bottom wall 220 and a peripheral edge of the bottom wall 220 close to the top
- the outer wall 230 extending in the direction of the cover 300, the outer wall 230 and the bottom wall 220 surround the receiving cavity 500.
- the vibration system 400 includes a voice coil 410 disposed in the magnetic gap 190 ,
- the connecting frame 420 connected to the voice coil 410 and extending from the gap 160 to the receiving cavity 500 outside the magnetic circuit system 100, the annular dome 430 connected to the connecting frame 420 and parallel to the bottom plate surface of the bottom cover 200, connected to
- a bottom side wall 111 extending upward is provided at the edge of the magnetic bottom cover 110.
- the bottom side wall 111 is connected to the edge of the magnetically conductive top cover 120 to form a peripheral wall 180; the bottom side wall 111 is provided with a gap 160.
- the accommodating cavity 170 communicates with the outside through the gap 160 .
- the plate surfaces of the magnetically permeable bottom cover 110 and the magnetically permeable top cover 120 are both rectangular, and the four side edges of the magnetically permeable bottom cover 110 each have a bottom side wall 111 extending upwards, and four bottom side walls 111.
- the plate surfaces of the magnetic bottom cover 110 and the top cover 120 are rectangular, and the four side edges of the top cover 120 each have a top side wall 121 extending downward, and four top side walls 121 The height of the top side wall 121 is located at the four corners of the magnetic top cover 120.
- a notch 160 is provided.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
Abstract
La présente invention concerne un système de circuit magnétique et un haut-parleur l'utilisant. Le haut-parleur comprend un couvercle inférieur (200), un couvercle supérieur (300), un système de circuit magnétique (100) et un système de vibration (400). Le système de circuit magnétique (100) comprend : un couvercle inférieur magnétiquement conducteur (110), un couvercle supérieur magnétiquement conducteur (120), un premier acier magnétique (130) fixé sur le fond du couvercle inférieur magnétiquement conducteur (110), un second acier magnétique (140) fixé sur la partie supérieure du couvercle supérieur magnétiquement conducteur (120), et une plaque magnétiquement conductrice (150) reçue dans une cavité de réception (170) et incorporée entre le premier acier magnétique (130) et le second acier magnétique (140). Le premier acier magnétique (130) et le second acier magnétique (140) ont la même polarité sur les côtés proches l'un de l'autre. Le système de circuit magnétique (100) de la présente solution peut améliorer considérablement l'intensité du champ magnétique du système de circuit magnétique (100), de telle sorte que le haut-parleur utilisant le système de circuit magnétique (100) de la solution permet d'obtenir de meilleures performances acoustiques.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910387728.7 | 2019-05-10 | ||
| CN201910387728 | 2019-05-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2020227956A1 true WO2020227956A1 (fr) | 2020-11-19 |
Family
ID=67450376
Family Applications (5)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CN2019/086980 Ceased WO2020227956A1 (fr) | 2019-05-10 | 2019-05-15 | Système de circuit magnétique et haut-parleur l'utilisant |
| PCT/CN2019/090026 Ceased WO2020228081A1 (fr) | 2019-05-10 | 2019-06-04 | Haut-parleur |
| PCT/CN2019/090024 Ceased WO2020228080A1 (fr) | 2019-05-10 | 2019-06-04 | Haut-parleur |
| PCT/CN2019/090023 Ceased WO2020228079A1 (fr) | 2019-05-10 | 2019-06-04 | Haut-parleur |
| PCT/CN2019/129411 Ceased WO2020228341A1 (fr) | 2019-05-10 | 2019-12-27 | Dispositif de génération de son |
Family Applications After (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CN2019/090026 Ceased WO2020228081A1 (fr) | 2019-05-10 | 2019-06-04 | Haut-parleur |
| PCT/CN2019/090024 Ceased WO2020228080A1 (fr) | 2019-05-10 | 2019-06-04 | Haut-parleur |
| PCT/CN2019/090023 Ceased WO2020228079A1 (fr) | 2019-05-10 | 2019-06-04 | Haut-parleur |
| PCT/CN2019/129411 Ceased WO2020228341A1 (fr) | 2019-05-10 | 2019-12-27 | Dispositif de génération de son |
Country Status (2)
| Country | Link |
|---|---|
| CN (5) | CN110149579B (fr) |
| WO (5) | WO2020227956A1 (fr) |
Families Citing this family (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020227956A1 (fr) * | 2019-05-10 | 2020-11-19 | 瑞声声学科技(深圳)有限公司 | Système de circuit magnétique et haut-parleur l'utilisant |
| CN111405422B (zh) * | 2019-11-21 | 2021-11-12 | 瑞声科技(新加坡)有限公司 | 发声器件 |
| WO2021128048A1 (fr) * | 2019-12-25 | 2021-07-01 | 瑞声声学科技(深圳)有限公司 | Dispositif de production de son |
| WO2021128330A1 (fr) * | 2019-12-27 | 2021-07-01 | 瑞声声学科技(深圳)有限公司 | Dispositif de génération de son |
| WO2021128332A1 (fr) * | 2019-12-27 | 2021-07-01 | 瑞声声学科技(深圳)有限公司 | Dispositif de production de son |
| WO2021134185A1 (fr) * | 2019-12-30 | 2021-07-08 | 瑞声声学科技(深圳)有限公司 | Dispositif de production de son |
| WO2021134184A1 (fr) * | 2019-12-30 | 2021-07-08 | 瑞声声学科技(深圳)有限公司 | Dispositif de production sonore |
| CN212034341U (zh) * | 2020-05-20 | 2020-11-27 | 瑞声光电科技(常州)有限公司 | 一种扬声器 |
| CN212034339U (zh) * | 2020-05-20 | 2020-11-27 | 瑞声光电科技(常州)有限公司 | 一种扬声器 |
| CN111901732B (zh) * | 2020-06-24 | 2021-04-27 | 瑞声科技(新加坡)有限公司 | 一种扬声器 |
| CN212486779U (zh) * | 2020-06-30 | 2021-02-05 | 瑞声科技(新加坡)有限公司 | 一种扬声器 |
| CN213462308U (zh) * | 2020-07-06 | 2021-06-15 | 瑞声科技(新加坡)有限公司 | 扬声器 |
| CN212785823U (zh) * | 2020-07-06 | 2021-03-23 | 瑞声科技(新加坡)有限公司 | 一种发声器件 |
| CN112073882B (zh) * | 2020-09-11 | 2025-03-18 | 常州市润蒙声学科技有限公司 | 一种双驱动双面发声的扬声器 |
| CN112165675B (zh) * | 2020-10-22 | 2021-09-24 | 瑞声新能源发展(常州)有限公司科教城分公司 | 扬声器 |
| CN112511958B (zh) * | 2020-12-18 | 2021-11-16 | 瑞声新能源发展(常州)有限公司科教城分公司 | 发声装置 |
| CN213846499U (zh) * | 2020-12-30 | 2021-07-30 | 歌尔股份有限公司 | 激励器及电子产品 |
| CN115396789B (zh) * | 2021-05-25 | 2025-10-03 | 北京小米移动软件有限公司 | 扬声器和电子设备 |
| CN114866924B (zh) * | 2022-05-07 | 2024-07-30 | 歌尔股份有限公司 | 发声装置和电子终端 |
| CN115002628A (zh) * | 2022-05-31 | 2022-09-02 | 厦门东声电子有限公司 | 一种双振膜结构的扬声器及其电子产品 |
| CN116887145B (zh) * | 2023-08-10 | 2024-01-26 | 汉得利(常州)电子股份有限公司 | 一种磁路结构及双面扬声器 |
| CN117729494A (zh) * | 2023-11-15 | 2024-03-19 | 歌尔股份有限公司 | 发声器件和电子设备 |
| CN120264205B (zh) * | 2025-06-05 | 2025-10-17 | 荣耀终端股份有限公司 | 一种扬声器及电子设备 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2935687Y (zh) * | 2006-07-07 | 2007-08-15 | 常州美欧电子有限公司 | 夹心磁路结构扬声器 |
| US20120294474A1 (en) * | 2011-05-19 | 2012-11-22 | Zonghan Wu | Moving-Magnet Electromagnetic Device with Planar Coil |
| CN203086724U (zh) * | 2013-01-03 | 2013-07-24 | 瑞声光电科技(常州)有限公司 | 电磁扬声器 |
| CN205847592U (zh) * | 2016-07-21 | 2016-12-28 | 瑞声科技(新加坡)有限公司 | 扬声器 |
| JP2019047279A (ja) * | 2017-08-31 | 2019-03-22 | パイオニア株式会社 | 振動子ユニット |
Family Cites Families (48)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5734734A (en) * | 1995-12-29 | 1998-03-31 | Proni; Lucio | Audio voice coil adaptor ring |
| JP4577098B2 (ja) * | 2005-06-03 | 2010-11-10 | 日本ビクター株式会社 | 電気音響変換器 |
| JP4735299B2 (ja) * | 2006-02-06 | 2011-07-27 | パナソニック株式会社 | スピーカ |
| JP2008042618A (ja) * | 2006-08-08 | 2008-02-21 | Sharp Corp | スピーカー装置 |
| JP4457165B2 (ja) * | 2008-01-28 | 2010-04-28 | パイオニア株式会社 | スピーカ装置 |
| US8204269B2 (en) * | 2008-08-08 | 2012-06-19 | Sahyoun Joseph Y | Low profile audio speaker with minimization of voice coil wobble, protection and cooling |
| CN201491254U (zh) * | 2009-08-17 | 2010-05-26 | 常州美欧电子有限公司 | 微型电声能转换器 |
| CN201629838U (zh) * | 2009-12-21 | 2010-11-10 | 深圳市美欧电子有限责任公司 | 双折环电磁扬声器 |
| CN201781608U (zh) * | 2010-09-13 | 2011-03-30 | 富祐鸿科技股份有限公司 | 同轴喇叭结构 |
| CN201904916U (zh) * | 2010-12-28 | 2011-07-20 | 东莞正阳电子有限公司 | 多振膜扬声器 |
| CN202455528U (zh) * | 2011-12-30 | 2012-09-26 | 瑞声声学科技(常州)有限公司 | 薄型扬声器 |
| CN202799105U (zh) * | 2012-01-13 | 2013-03-13 | 瑞声光电科技(常州)有限公司 | 发声器 |
| CN103118319B (zh) * | 2013-01-16 | 2016-04-06 | 深圳市冠旭电子有限公司 | 一体式微型降噪喇叭 |
| CN103428613B (zh) * | 2013-06-06 | 2016-12-28 | 深圳市鲁粤盛科技有限公司 | 双折环辐射振动扬声器 |
| CN203708480U (zh) * | 2014-01-26 | 2014-07-09 | 歌尔声学股份有限公司 | 一种多振膜扬声器 |
| CN204377126U (zh) * | 2014-08-13 | 2015-06-03 | 绿之声企业有限公司 | 一种振膜加强型超窄结构的动圈式扬声器 |
| US20160066098A1 (en) * | 2014-08-26 | 2016-03-03 | Audio Design Experts, Inc. | Compact, Wide-Frequency Range, Loudspeaker Transducer |
| CN104202698A (zh) * | 2014-09-17 | 2014-12-10 | 苏州亿欧得电子有限公司 | 电声换能器线圈骨架 |
| CN204598284U (zh) * | 2015-05-07 | 2015-08-26 | 歌尔声学股份有限公司 | 扬声器 |
| KR101673297B1 (ko) * | 2015-06-19 | 2016-11-08 | 주식회사 비에스이 | 스피커용 서스펜션 및 그 제조방법 |
| CN204733358U (zh) * | 2015-07-01 | 2015-10-28 | 歌尔声学股份有限公司 | 微型扬声器 |
| TWI572213B (zh) * | 2015-07-06 | 2017-02-21 | 富祐鴻科技股份有限公司 | 揚聲器結構 |
| KR102349453B1 (ko) * | 2015-07-24 | 2022-01-10 | 삼성전자주식회사 | 스피커 장치 및 이를 포함하는 전자 장치 |
| US9693146B2 (en) * | 2015-09-11 | 2017-06-27 | Sonos, Inc. | Transducer diaphragm |
| WO2017045261A1 (fr) * | 2015-09-15 | 2017-03-23 | 歌尔声学股份有限公司 | Récepteur |
| CN105338454B (zh) * | 2015-11-20 | 2018-11-09 | 瑞声光电科技(常州)有限公司 | 长冲程扬声器 |
| US9942680B1 (en) * | 2016-02-22 | 2018-04-10 | Sonos, Inc. | Transducer assembly |
| CN205647950U (zh) * | 2016-04-25 | 2016-10-12 | 嘉善睿逸电子科技有限公司 | 一种多振膜扬声器 |
| US10694293B2 (en) * | 2016-05-18 | 2020-06-23 | Tang Band Ind Co., Ltd. | Radiation device and dual suspension edge loudspeaker, loudspeaker box, and application thereof |
| CN205793289U (zh) * | 2016-05-26 | 2016-12-07 | 瑞声声学科技(深圳)有限公司 | 扬声器 |
| CN205847558U (zh) * | 2016-05-26 | 2016-12-28 | 瑞声科技(新加坡)有限公司 | 扬声器 |
| CN205847591U (zh) * | 2016-07-18 | 2016-12-28 | 瑞声科技(新加坡)有限公司 | 扬声器 |
| CN205961442U (zh) * | 2016-07-21 | 2017-02-15 | 瑞声科技(新加坡)有限公司 | 扬声器 |
| US20180109893A1 (en) * | 2016-10-18 | 2018-04-19 | Bdnc (Holding) Limited | Hard speaker radiating diaphragms with light-curable voice coil attachment |
| CN106535069A (zh) * | 2016-11-29 | 2017-03-22 | 珠海格力电器股份有限公司 | 一种扬声器及音频设备 |
| CN206524947U (zh) * | 2017-01-10 | 2017-09-26 | 东莞市龙韵强电声有限公司 | 内外双折环扬声器 |
| CN107087243A (zh) * | 2017-06-20 | 2017-08-22 | 努比亚技术有限公司 | 一种双折环振膜、扬声器及移动终端 |
| CN107277713B (zh) * | 2017-07-06 | 2023-06-23 | 深圳市金宏翔声学有限公司 | 自带声学腔体喇叭 |
| CN107580284B (zh) * | 2017-08-31 | 2019-08-23 | 东莞顺合丰电业有限公司 | 扬声器 |
| CN109561368B (zh) * | 2017-09-26 | 2023-08-11 | 惠州迪芬尼声学科技股份有限公司 | 硬球顶高音扬声器 |
| CN207968888U (zh) * | 2017-11-22 | 2018-10-12 | 瑞声科技(新加坡)有限公司 | 发声器组件 |
| CN108712707A (zh) * | 2018-06-11 | 2018-10-26 | 常州市润蒙声学科技有限公司 | 扬声器 |
| CN108810770B (zh) * | 2018-08-06 | 2021-07-23 | 歌尔股份有限公司 | 一种发声器 |
| CN109121051A (zh) * | 2018-08-14 | 2019-01-01 | 瑞声科技(新加坡)有限公司 | 发声器件 |
| CN109348373B (zh) * | 2018-09-30 | 2021-06-15 | 瑞声科技(新加坡)有限公司 | 发声器件 |
| CN109348370B (zh) * | 2018-09-30 | 2020-12-22 | 瑞声科技(新加坡)有限公司 | 发声器件 |
| WO2020227956A1 (fr) * | 2019-05-10 | 2020-11-19 | 瑞声声学科技(深圳)有限公司 | Système de circuit magnétique et haut-parleur l'utilisant |
| CN110381424A (zh) * | 2019-06-26 | 2019-10-25 | 瑞声科技(新加坡)有限公司 | 发声器件 |
-
2019
- 2019-05-15 WO PCT/CN2019/086980 patent/WO2020227956A1/fr not_active Ceased
- 2019-05-30 CN CN201910462108.5A patent/CN110149579B/zh not_active Expired - Fee Related
- 2019-06-04 WO PCT/CN2019/090026 patent/WO2020228081A1/fr not_active Ceased
- 2019-06-04 WO PCT/CN2019/090024 patent/WO2020228080A1/fr not_active Ceased
- 2019-06-04 WO PCT/CN2019/090023 patent/WO2020228079A1/fr not_active Ceased
- 2019-06-05 CN CN201910487405.5A patent/CN110149580B/zh active Active
- 2019-06-05 CN CN201910487407.4A patent/CN110099341B/zh active Active
- 2019-06-05 CN CN201910488209.XA patent/CN110166910B/zh not_active Expired - Fee Related
- 2019-12-27 WO PCT/CN2019/129411 patent/WO2020228341A1/fr not_active Ceased
- 2019-12-27 CN CN201911379696.2A patent/CN111510827B/zh active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2935687Y (zh) * | 2006-07-07 | 2007-08-15 | 常州美欧电子有限公司 | 夹心磁路结构扬声器 |
| US20120294474A1 (en) * | 2011-05-19 | 2012-11-22 | Zonghan Wu | Moving-Magnet Electromagnetic Device with Planar Coil |
| CN203086724U (zh) * | 2013-01-03 | 2013-07-24 | 瑞声光电科技(常州)有限公司 | 电磁扬声器 |
| CN205847592U (zh) * | 2016-07-21 | 2016-12-28 | 瑞声科技(新加坡)有限公司 | 扬声器 |
| JP2019047279A (ja) * | 2017-08-31 | 2019-03-22 | パイオニア株式会社 | 振動子ユニット |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020228341A1 (fr) | 2020-11-19 |
| CN110149580B (zh) | 2021-02-12 |
| CN110166910B (zh) | 2021-01-08 |
| CN110099341B (zh) | 2021-07-09 |
| CN110099341A (zh) | 2019-08-06 |
| WO2020228079A1 (fr) | 2020-11-19 |
| CN111510827A (zh) | 2020-08-07 |
| CN110149580A (zh) | 2019-08-20 |
| CN110149579B (zh) | 2021-08-10 |
| CN110149579A (zh) | 2019-08-20 |
| CN110166910A (zh) | 2019-08-23 |
| WO2020228080A1 (fr) | 2020-11-19 |
| WO2020228081A1 (fr) | 2020-11-19 |
| CN111510827B (zh) | 2021-12-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2020227956A1 (fr) | Système de circuit magnétique et haut-parleur l'utilisant | |
| CN218387855U (zh) | 同轴扬声器 | |
| CN202818588U (zh) | 扬声器 | |
| CN106101958B (zh) | 扬声器箱 | |
| CN211744718U (zh) | 发声器件 | |
| CN106162425A (zh) | 扬声器箱 | |
| WO2020134309A1 (fr) | Haut-parleur | |
| KR101877176B1 (ko) | 하이브리드 스피커 | |
| WO2022082861A1 (fr) | Unité de haut-parleur et dispositif électronique | |
| WO2021232476A1 (fr) | Haut-parleur | |
| WO2006082774A1 (fr) | Haut-parleur | |
| WO2022061985A1 (fr) | Enceinte à haut-parleur et terminal mobile | |
| CN201947433U (zh) | 电磁扬声器 | |
| WO2021093003A1 (fr) | Enceinte de haut-parleur | |
| WO2022061982A1 (fr) | Caisson de haut-parleur et terminal mobile | |
| KR20060089937A (ko) | 스피커 | |
| JPH03220897A (ja) | スピーカ | |
| WO2020119236A1 (fr) | Haut-parleur | |
| CN211209916U (zh) | 一种五磁扬声器 | |
| TW200642514A (en) | Speaker and method of producing the same | |
| WO2022061990A1 (fr) | Enceinte de haut-parleur et terminal mobile | |
| CN205793295U (zh) | 磁路系统及应用所述磁路系统的扬声器 | |
| US20250301255A1 (en) | Speaker | |
| JP4353226B2 (ja) | スピーカ | |
| CN215420739U (zh) | 一种微型扬声器 |
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: 19929135 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: 19929135 Country of ref document: EP Kind code of ref document: A1 |