WO2021056900A1 - Dispositif de production de son et appareil électronique - Google Patents

Dispositif de production de son et appareil électronique Download PDF

Info

Publication number
WO2021056900A1
WO2021056900A1 PCT/CN2019/129012 CN2019129012W WO2021056900A1 WO 2021056900 A1 WO2021056900 A1 WO 2021056900A1 CN 2019129012 W CN2019129012 W CN 2019129012W WO 2021056900 A1 WO2021056900 A1 WO 2021056900A1
Authority
WO
WIPO (PCT)
Prior art keywords
voice coil
magnetic circuit
coil unit
diaphragm assembly
assembly
Prior art date
Application number
PCT/CN2019/129012
Other languages
English (en)
Chinese (zh)
Inventor
黄信河
董志永
Original Assignee
歌尔股份有限公司
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 歌尔股份有限公司 filed Critical 歌尔股份有限公司
Publication of WO2021056900A1 publication Critical patent/WO2021056900A1/fr

Links

Images

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
    • H04R7/12—Non-planar diaphragms or cones
    • 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 a sound emitting device and electronic equipment using the sound emitting device.
  • the vibrating parts of the multi-drive horn include the voice coil assembly 5'and the diaphragm assembly 6', and there is no centering support piece design.
  • the structure represented by Fig. 1 can make the speaker very thin and narrow, it can meet the development trend of light and thin, and because there is no support piece, the problem of non-linear distortion of the support piece can be reduced. But its own defects are also very obvious:
  • the magnetic fluid is a liquid, it will follow the vibration of the voice coil component during a long stroke, it will condense and fail at high temperature and cause defects, and the relatively high price itself will easily lead to problems such as a decline in the market competitiveness of the product.
  • the addition of magnetic fluid can improve the centering effect of the voice coil to a certain extent, but it is still difficult to achieve substantial improvement in terms of high power and long stroke.
  • FIG. 2 it shows a relatively traditional speaker structure in the prior art.
  • the vibration system is also provided with a circular centering support piece 7'separately, and the centering support piece 7'is bonded to the voice coil assembly 5'.
  • This kind of structure technology is relatively mature and has good performance in terms of performance. It can meet the needs of high-power and long-stroke, but the disadvantage is that it is limited by the circular support plate bonded to the voice coil assembly, and it is used on the narrow and long structure speaker. , The voice coil cannot be maximized to provide the maximum driving force, and the performance cannot be maximized.
  • the centering support piece needs space to vibrate up and down
  • the lead wire from the voice coil also needs vibration space.
  • this type of structure cannot be narrower. Thinner, it can only be used in the design of larger size. In the face of the current trend of light, thin and narrow products, this structure cannot well meet the development needs, and the application range is too narrow. It is used in products with narrow and long thin structure. , There is almost no market competitiveness.
  • the technical problem to be solved by this patent is to change the structural design of the existing loudspeaker so that it can be widely used in products in various scenes, and the acoustic performance is further optimized.
  • a sound generating device includes a housing, a vibration system and a magnetic circuit system installed on the housing;
  • the vibration system includes a diaphragm assembly and a voice coil assembly fixedly connected to the diaphragm assembly, wherein the The magnetic circuit system includes at least one magnetic circuit unit, the voice coil assembly is correspondingly provided with at least one voice coil unit, and an end of the voice coil unit away from the magnetic circuit unit is installed on the diaphragm assembly;
  • It also includes at least two elastic components; the elastic components are configured to be separated from the voice coil assembly, and one end of the elastic component is connected and fixed to the diaphragm assembly, and the other end is connected to the housing.
  • the magnetic circuit system includes a magnetic circuit unit, and the voice coil assembly is correspondingly provided with a voice coil unit;
  • the two elastic members are respectively arranged on both sides of the voice coil unit, and are respectively connected with the diaphragm assembly .
  • the magnetic circuit system includes two independently arranged magnetic circuit units;
  • the voice coil assembly includes a first voice coil unit and a second voice coil unit, the first voice coil unit and the second voice coil The units are respectively corresponding to one of the magnetic circuit units;
  • the two elastic members are respectively arranged on the outer side of the first voice coil unit and the second voice coil unit, and are respectively connected to the vibration
  • the membrane modules are connected together.
  • the housing includes a first mounting portion for mounting the magnetic circuit system, and a second mounting portion for accommodating the elastic component.
  • the housing includes a first installation plane for installing the magnetic circuit system, and a second installation plane for connecting the diaphragm assembly; the first installation part is arranged in the first installation On a plane, the second mounting portion is vertically formed between the first mounting plane and the second mounting plane.
  • the first mounting portion and the second mounting portion are mounting holes surrounded by an annular wall.
  • the diaphragm assembly is elongated, and includes a folding ring and a carcass located inside the folding ring.
  • the first voice coil unit, the second voice coil unit and the elastic member are connected and fixed on the carcass, and they are all located on the side of the carcass facing the magnetic circuit system.
  • the first voice coil unit and the second voice coil unit are arranged and installed in the middle area of the carcass, and the two elastic members are connected to the edge area of the carcass.
  • a fixing part connected with the diaphragm assembly is provided on the elastic member;
  • the fixing portion is a convex structure extending from the middle surface of the elastic component in the direction of the diaphragm assembly.
  • the elastic member is configured as a closed ring structure.
  • the magnetic circuit system includes a plurality of magnetic circuit units, and the voice coil assembly is correspondingly provided with a plurality of voice coil units;
  • the elastic member In the direction perpendicular to the vibration of the sound generating device, the elastic member is arranged at least outside the two voice coil units located at the edge.
  • the diaphragm assembly is a long strip structure arranged in a horizontal direction, the voice coil units are arranged in parallel in the horizontal direction, and the elastic member is connected and fixed to the diaphragm assembly in the vertical direction.
  • the minimum thickness of the sound emitting device is less than or equal to 10 mm.
  • the sound device provided by the present invention innovatively adopts the design of separating the elastic component and the voice coil assembly, which is completely different from the structure in which the support piece and the voice coil are superimposed and assembled in the traditional structure, and can effectively liberate the centering support piece in the prior art.
  • the occupied space can maximize the diameter of the voice coil while making the product thinner to increase the driving force;
  • the elastic component is directly connected and fixed on the diaphragm assembly to increase the gap between the carcass and the elastic component.
  • the binding force in terms of mechanical balance analysis, makes the sound device have better neutrality and stability when working under high-power and long-stroke conditions. Compared with the prior art, it can be used as a voice coil assembly without the need for a separate injection of magnetic fluid. Provides good alignment.
  • an electronic device including the above-mentioned sound emitting device.
  • the electronic device of the present invention has better acoustic performance.
  • Fig. 1 is a schematic cross-sectional view of a sound generating device of prior art 1;
  • Figure 2 is a sectional view of the prior art 2 sound generating device
  • FIG. 3 is a front appearance view of a sound generating device according to an embodiment of the present invention.
  • Figure 4 is an exploded view of the sound generating device according to the embodiment of the present invention.
  • Figure 5 is a schematic cross-sectional view of a sound emitting device according to an embodiment of the present invention.
  • Fig. 6 is a structural diagram of an elastic component of a sound generating device according to an embodiment of the present invention.
  • Fig. 7 is a schematic cross-sectional view of an elastic component of a sound generating device according to an embodiment of the present invention.
  • FIG. 8 is a schematic diagram of assembling the housing of the sound generating device with the magnetic circuit, the elastic component and the voice coil assembly according to the embodiment of the invention.
  • the present invention provides a sound generating device, which includes a housing and a vibration system and a magnetic circuit system mounted on the housing.
  • the vibration system includes a diaphragm assembly and a voice coil assembly fixedly connected to the diaphragm assembly
  • the magnetic circuit system includes at least one magnetic circuit unit, the voice coil assembly is correspondingly provided with at least one voice coil unit, the end of the voice coil unit far from the magnetic circuit unit is installed on the diaphragm assembly, and also includes at least two elastic components, the elastic components are configured In order to be separated from the voice coil assembly, and the elastic member is connected and fixed with the diaphragm assembly.
  • the sound emitting device of this embodiment is described by taking a dual-drive sound emitting device applied to a narrow and thin electronic device as an example. It includes a casing 8 and a magnetic circuit system and a vibration system assembled on the casing 8.
  • the magnetic circuit system may specifically include a magnetic yoke 1, a main magnet 2, a magnetic conductive plate 3, and a secondary magnet 4.
  • the magnetic yoke 1 may be configured in a bowl-shaped structure, and the ring-shaped side wall is between the magnet and the magnetic conductive plate. Form a magnetic gap.
  • this embodiment only shows the structure of a magnetic circuit system, and in actual design, it is not limited to the above-shown manner.
  • the auxiliary magnet 4 may not be provided, and for another example, the magnetic yoke 1 may not be provided in a bowl-shaped structure, and may also be structured in other shapes. These cannot affect the implementation of this technical solution.
  • the vibration system includes a voice coil assembly 5 and a diaphragm assembly 6.
  • the voice coil assembly includes two voice coil units, namely a first voice coil unit 51 and a second voice coil unit 52, and the diaphragm assembly 6 can be configured as a long strip.
  • the shape includes a fold ring 61 on the outside and a carcass on the inside of the fold ring 61.
  • each voice coil unit may include a skeleton and a voice coil wound on the outside of the skeleton, and the voice coil unit and the diaphragm assembly 6 are connected together by the skeleton.
  • the side of the folding ring 61 close to the carcass 62 is provided with a connecting surface extending in the horizontal direction, and the carcass 62 includes a horizontally arranged inner connecting portion located in the middle and an outer connecting portion located outside the inner connecting portion.
  • the arc-shaped part and the horizontally arranged outer connecting part located outside the arc-shaped part, and the connecting surface of the folding ring 61 can be attached and fixed to the outer connecting part of the carcass.
  • the specific structure and shape of the diaphragm assembly 6 are not limited here, and only an exemplary introduction is made.
  • the folding ring 61 may include one or more convex arc-shaped structures.
  • the carcass 62 may also include an arc-shaped portion. It is also possible to provide one or more arc-shaped convex structures, which will not be repeated here.
  • the folding ring 61 is also provided with a number of reinforcing ribs 610. These reinforcing ribs 610 are evenly arranged along the annular surface of the folding ring, which can increase the rigidity of the folding ring 61 itself.
  • the elastic member 7 is a structure completely separated from the voice coil assembly 5, and is not connected to the voice coil assembly 5 in any way. It is directly connected to the diaphragm assembly 6 in the vertical direction.
  • first voice coil unit 51, the second voice coil unit 52, and the two elastic members 7 are all connected to the carcass 62, and they are all located on the side of the carcass 62 facing the magnetic circuit system. Further, during specific assembly, the first voice coil unit 51 and the second voice coil unit 52 can be installed in the middle area of the carcass 62, and the two elastic components 7 can be connected to the edge area of the carcass 62, that is to say Viewed from the direction perpendicular to the vibration of the vibration system (that is, viewed from the horizontal direction), the elastic member 7 is located on the outer side of the two voice coil units, but it is still connected to the carcass 62.
  • the circular centering support used in the prior art is generally designed as an annular structure with a middle hole, wherein the middle hole is used to connect and fix the frame.
  • the elastic member 7 can be set as a closed ring structure. In its entire structure design, no through holes are required, but a fixed portion 71 can be formed on the surface of the middle part. It is used for connecting and fixing with the carcass 62.
  • the fixing portion may be a convex structure extending from the middle surface of the elastic member 7 in the direction of the carcass 62.
  • the convex structure is arranged in a position other than the middle part, but it is easy to understand that when arranged in the middle part, this fixing method is the most stable and uniform, and it is not easy to cause problems such as polarization.
  • the elastic member 7 and the voice coil assembly 5 are completely separate designs, for the elastic member 7 itself, its choices in terms of shape, material and structure can be more diverse and flexible. For example, its shape can also be round, square, etc. according to structural requirements. Of course, according to the principle of balance, a circular structure may be preferred.
  • the selection of the elastic component 7 can not be limited to the existing metal materials, but can choose higher-compliant cloth, foam and other materials. This type of material has a wide adjustable range and is easy to achieve a lower F0. Compared with the metal centering support piece, it can improve the non-linear distortion caused by it, and it is easier to realize the various indicators of the acoustic performance.
  • this embodiment comprehensively considers the technical problems caused by the design of prior art 1 and 2 and innovatively uses a design in which the elastic member 7 is separated from the voice coil assembly 5.
  • the internal space can be reasonably used when the space of the narrow and long sounding device is limited, so that the bearing power of the sounding device is increased, and the neutralization of the product is improved when the product is vibrated, and the acoustic components are reasonably arranged and assembled to make the entire vibration
  • the system achieves the best balance and centering effect. It is specifically manifested in the following aspects:
  • the elastic component 7 is assembled separately from the voice coil assembly 5 to optimize the structure of the vibration system of the sound generating device. It is completely different from the structure in which the centering support piece must be glued to the voice coil frame in the traditional prior art 2. It changes the traditional way of stacking the support piece and the voice coil assembly, effectively freeing up the valuable space occupied by the support piece, and can be used in the product. It can be thinner while maximizing the diameter of the voice coil assembly to provide the greatest driving force and improve the sound pressure level of the speaker.
  • the minimum thickness of the sound device as a whole can be 10 mm or less, which is not achieved by the speaker product design in the prior art.
  • the single-point restraining force of the top of the voice coil assembly is changed to increase the restraining force of the elastic member 7 on the carcass 62, and in the mechanical balance analysis, the sound generating device It has better alignment and stability when working under high-power and long-stroke conditions, and does not require complicated methods such as magnetic fluid injection, so as to avoid various problems derived from traditional magnetic fluid injection, reduce costs and improve Product market competitiveness.
  • the design of the elastic component pasted on the carcass can increase the rigidity of the diaphragm assembly, effectively improve the distortion and bending problems, and can Suppress the split vibration, thereby improving the various peaks and valleys caused by the split vibration of the sound device, and improve the sound quality.
  • this embodiment shows only a dual-drive sounding device, which is mainly designed for narrow and long thin products, but in actual application, this technical solution can be applied to a common single-drive sounding device at the same time.
  • the number of specific drive units is not limited, and it is not limited whether it is an ultra-thin speaker product.
  • two elastic components 7 need to be provided.
  • two elastic components are provided perpendicular to the vibration direction.
  • the components 7 are respectively arranged on both sides of the voice coil unit, and are respectively connected with the diaphragm assembly.
  • two or more elastic parts can be designed according to specific product requirements, but the elastic parts 7 should be at least It is arranged on the outside of the two voice coil units located on the edge.
  • the housing 8 includes a first mounting portion 811 for mounting the magnetic circuit system, and a second mounting portion 821 for accommodating the elastic component 7.
  • the housing 8 includes a mounting magnetic circuit
  • the first installation plane 81 of the system and the second installation plane 62 for connecting the diaphragm assembly 6 are a top surface and a bottom surface. It is easy to understand that the first installation portion 811 is set on the first installation plane 81 , And the second mounting portion 821 needs to be connected to the peripheral surface of the elastic component 7 and the elastic component 7 is to be connected to the diaphragm assembly 6. In order to facilitate assembly, the second mounting portion 821 can be formed on the first mounting plane 81 and the second mounting plane. Between plane 82.
  • the height of the first installation plane 81 in the vertical direction is smaller than that of the second installation plane 82.
  • the first mounting part 811 and the second mounting part 821 mentioned here are both mounting holes.
  • the shape and size of the mounting holes match the shape and size of the magnetic circuit unit and the elastic member 7 respectively.
  • the mounting holes are all surrounded by a ring-shaped wall. ,
  • the annular wall can be integrally formed with the housing 8.
  • an air flow channel is also provided on the back side of the diaphragm assembly 6.
  • the length between the first installation plane 81 and the second installation plane 82 in the horizontal direction is different, and the second installation plane The portion 82 longer than the first installation plane 81 forms the first air flow channel 10.
  • a second air flow channel 11 is formed between the surrounding wall of the second installation portion 821 and the first installation plane 81.
  • the housing 8 is also provided with a threading hole 83 through which the brocade wire 53 of the voice coil unit passes.
  • the first voice coil unit 51 and the second voice coil unit 52 respectively lead out two brocade wires 53.
  • the brocade threads 53 can pass through the threading hole 83 in series (or in parallel), and are electrically connected to the terminal 9 fixed in the middle of the first installation plane 81 of the housing 8.
  • the terminal 9 is connected with the external circuit at the same time, thereby forming the transmission of the current signal from the outside to the inside, which supports the normal operation of the sound generating device.
  • the specific electro-acoustic conversion principle is well known to those skilled in the art, and will not be repeated here.
  • the technical solution also provides an electronic device that includes the above-mentioned sound emitting device.
  • the electronic device may be a long, narrow, and thin terminal product such as a flat-screen TV, or it may be Speakers and other terminal products.
  • Electronic equipment using this kind of sounding device can have higher sensitivity and lower distortion, and can meet the requirements for sounding devices under high power and large stroke.

Landscapes

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

Abstract

L'invention concerne un dispositif de production de son, comprenant un boîtier, et un système de vibration et un système de circuit magnétique installé sur le boîtier, le système de vibration comprenant un ensemble membrane et un ensemble bobine acoustique relié de manière fixe à l'ensemble membrane, le système de circuit magnétique comprenant au moins une unité de circuit magnétique, l'ensemble bobine acoustique étant pourvu de manière correspondante d'au moins une unité de bobine acoustique, et une extrémité de l'unité de bobine acoustique à l'opposé de l'unité de circuit magnétique étant installée sur l'ensemble membrane. Le dispositif de production de son comprend en outre au moins deux composants élastiques, le composant élastique étant conçu pour être séparé de l'ensemble bobine acoustique, une extrémité du composant élastique étant reliée de manière fixe à l'ensemble membrane, et l'autre extrémité de celui-ci étant reliée au boîtier. Le dispositif de production de son de la présente invention peut satisfaire aux exigences de conception de produits étroits et minces, augmente le taux d'utilisation d'espace des produits, et optimise les performances du produit.
PCT/CN2019/129012 2019-09-28 2019-12-27 Dispositif de production de son et appareil électronique WO2021056900A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201910928238.3 2019-09-28
CN201910928238.3A CN110708643A (zh) 2019-09-28 2019-09-28 发声装置及电子设备

Publications (1)

Publication Number Publication Date
WO2021056900A1 true WO2021056900A1 (fr) 2021-04-01

Family

ID=69197317

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2019/129012 WO2021056900A1 (fr) 2019-09-28 2019-12-27 Dispositif de production de son et appareil électronique

Country Status (2)

Country Link
CN (1) CN110708643A (fr)
WO (1) WO2021056900A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111193985B (zh) * 2020-03-13 2021-06-01 Oppo广东移动通信有限公司 一种移动终端

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201789621U (zh) * 2010-05-06 2011-04-06 歌尔声学股份有限公司 动圈式发声器
CN201947438U (zh) * 2011-02-11 2011-08-24 京东方科技集团股份有限公司 扬声器及具有该扬声器的音响设备
CN102984609A (zh) * 2012-11-27 2013-03-20 无锡杰夫电声有限公司 多点激励源扬声器音箱
US20160021462A1 (en) * 2014-07-15 2016-01-21 JVC Kenwood Corporation Speaker
CN106060732A (zh) * 2016-07-18 2016-10-26 歌尔股份有限公司 一种扬声器

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3478466B2 (ja) * 1997-05-22 2003-12-15 株式会社ケンウッド スピーカ
CN102026066B (zh) * 2009-09-18 2013-10-09 清华大学 定心支片及使用该定心支片的扬声器
CN201616902U (zh) * 2009-11-20 2010-10-27 天津中环真美声学技术有限公司 双驱动纸托平板扬声器
CN201742547U (zh) * 2010-05-26 2011-02-09 美特科技(苏州)有限公司 一种扬声器
CN201839430U (zh) * 2010-08-24 2011-05-18 东莞嘉茂电子科技有限公司 新型扬声器
CN201789625U (zh) * 2010-09-20 2011-04-06 东莞正阳电子有限公司 一种新型结构的扬声器
CN202425026U (zh) * 2011-12-08 2012-09-05 瑞声光电科技(常州)有限公司 发声器
CN202535532U (zh) * 2012-03-31 2012-11-14 歌尔声学股份有限公司 微型扬声器及其使用该微型扬声器的电子装置
CN202713598U (zh) * 2012-07-19 2013-01-30 东莞正阳电子有限公司 双驱动薄型扬声器
KR101499514B1 (ko) * 2013-10-23 2015-03-09 주식회사 진영지앤티 장방형의 일체형 투웨이 스피커
CN206413176U (zh) * 2016-10-14 2017-08-15 中山强乐电子有限公司 双驱动跑道型扬声器
CN207117942U (zh) * 2017-08-31 2018-03-16 东莞顺合丰电业有限公司 扬声器
CN107454530B (zh) * 2017-09-22 2023-11-03 国光电器股份有限公司 一种扬声器装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201789621U (zh) * 2010-05-06 2011-04-06 歌尔声学股份有限公司 动圈式发声器
CN201947438U (zh) * 2011-02-11 2011-08-24 京东方科技集团股份有限公司 扬声器及具有该扬声器的音响设备
CN102984609A (zh) * 2012-11-27 2013-03-20 无锡杰夫电声有限公司 多点激励源扬声器音箱
US20160021462A1 (en) * 2014-07-15 2016-01-21 JVC Kenwood Corporation Speaker
CN106060732A (zh) * 2016-07-18 2016-10-26 歌尔股份有限公司 一种扬声器

Also Published As

Publication number Publication date
CN110708643A (zh) 2020-01-17

Similar Documents

Publication Publication Date Title
KR101499514B1 (ko) 장방형의 일체형 투웨이 스피커
CN202713598U (zh) 双驱动薄型扬声器
CN111698617A (zh) 一种发声装置和电子设备
US9955251B1 (en) Sounder module
WO2020181887A1 (fr) Haut-parleur
CN206865742U (zh) 一种超薄扬声器
US9788121B2 (en) Flat plate-type bass loudspeaker
CN201667712U (zh) 一种动圈式电声转换器
WO2020248208A1 (fr) Dispositif de production de son d'écran
WO2021232475A1 (fr) Haut-parleur
WO2021056900A1 (fr) Dispositif de production de son et appareil électronique
WO2015096526A1 (fr) Diaphragme élastique suspendu
CN111698618A (zh) 一种发声装置和电子设备
US10972830B1 (en) Speaker monomer with pair of dynamic speakers thereof
US20220272439A1 (en) Ultra-thin speaker
CN114125662A (zh) 扬声器及电子设备
CN103347234A (zh) 低音扬声器及其后声腔形成方法
US11856384B2 (en) Speaker and electronic device
CN215898005U (zh) 紧凑式同轴扬声器
CN201657279U (zh) 动圈式电声转换器
CN210491188U (zh) 平板扬声器用骨架音圈
CN101511048A (zh) 具有新型振动系统的电声转换器及其振动系统的制造方法
CN212211376U (zh) 一种新型扬声器
CN210298053U (zh) 一种新型扬声器
WO2021012610A1 (fr) Ensemble capuchon étanche à la poussière et haut-parleur ultra-fin

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: 19947000

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: 19947000

Country of ref document: EP

Kind code of ref document: A1