WO2014079376A1 - 电声换能器 - Google Patents
电声换能器 Download PDFInfo
- Publication number
- WO2014079376A1 WO2014079376A1 PCT/CN2013/087609 CN2013087609W WO2014079376A1 WO 2014079376 A1 WO2014079376 A1 WO 2014079376A1 CN 2013087609 W CN2013087609 W CN 2013087609W WO 2014079376 A1 WO2014079376 A1 WO 2014079376A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- metal layer
- layer
- electroacoustic transducer
- diaphragm body
- voice coil
- 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; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
- H04R19/00—Electrostatic transducers
- H04R19/02—Loudspeakers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; 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
- H04R9/046—Construction
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
- H04R19/00—Electrostatic transducers
- H04R19/005—Electrostatic transducers using semiconductor materials
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; 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; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/06—Arranging circuit leads; Relieving strain on circuit leads
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
- H04R7/00—Diaphragms for electromechanical transducers; Cones
- H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
- H04R7/04—Plane diaphragms
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
- H04R7/00—Diaphragms for electromechanical transducers; Cones
- H04R7/16—Mounting or tensioning of diaphragms or cones
- H04R7/18—Mounting or tensioning of diaphragms or cones at the periphery
Definitions
- the present invention relates to the field of electroacoustics, and in particular to an electroacoustic transducer. Background technique
- the electroacoustic transducer includes a diaphragm and a voice coil coupled to one side of the diaphragm, and further includes an electrical connector electrically connecting the internal circuit of the electroacoustic transducer and the external circuit, wherein the voice coil includes two sounds.
- the loop leads, the two voice coil leads are electrically connected to the two electrodes of the electrical connector by spot welding, etc., and the electrical connector is electrically connected to the external circuit at the same time to control the electrical signal in the voice coil through the electrical signal of the terminal product.
- the lead of the voice coil needs to follow a certain thread to realize electrical connection with the electrical connector.
- the voice coil lead is easily broken and the product is defective.
- the present invention is for an electroacoustic transducer, which can avoid the problem that the voice coil lead is broken due to excessive thread length, and the reliability of the product is better.
- the present invention provides an electroacoustic transducer including a diaphragm body portion and a voice coil coupled to one side of the diaphragm body portion, wherein the diaphragm body portion includes a non-conductive substrate a layer and a power-seeking metal house, the substrate layer comprising at least two layers, the metal layer being disposed between any two adjacent layers of the substrate layer;
- a first conductive terminal electrically connected to the voice coil is disposed on the metal layer, and each of the substrate layers between the metal layer and the voice coil is provided with a material to avoid the first guide Opening of the electrical terminal;
- a central portion of the diaphragm body portion is coupled with a rigid reinforcing layer, the reinforcing layer is coupled to a side of the diaphragm body portion away from the voice coil, and the reinforcing layer covers the first conductive terminal Area.
- the metal layer is further provided with a second conductive rib that is exposed to each of the substrate layers, and the second conductive terminal is located at an edge of the diaphragm body portion.
- the surfaces of the first conductive terminal and the second conductive terminal are plated with a metal protective layer.
- the electroacoustic transducer further includes a housing that houses the diaphragm body portion, and the second housing of the housing is disposed at a position corresponding to the second conductive terminal. Ludian Ruizi electrically connected electrical connectors.
- the materials of the substrate layers are one or more of PEEK, PEN, PE, PAR, PET, W, and PES.
- the metal layer is a copper foil or a copper metal layer formed by electroplating; and the metal protective layer is a tin metal layer.
- the diaphragm body portion includes a ball top portion at a central position, a folding ring portion at an edge position, and a joint portion at an edge of the folding ring portion for coupling with the casing;
- the metal layer includes a first metal layer distributed on top of the ball, a second metal layer distributed on the bonding portion, and a first metal layer and a portion distributed on the folding ring portion a third metal layer of the second metal layer; wherein the first metal layer and the second metal layer are respectively provided with two independent parts, and the two parts of the first metal house and the second metal layer And the third metal layer forms two separate electrodes.
- first metal layer and the second metal layer are annular structures, and the first metal layer and the second metal layer are both disposed on the first metal layer
- the layer and the second metal layer form a two-part break
- the third metal layer is a strip structure
- the diaphragm is a rectangular structure, and the third metal layer is distributed on two long axis sides of the rectangular diaphragm.
- the three metal layers are three strip structures arranged in parallel.
- the electroacoustic transducer of this structure can avoid the defects such as the disconnection of the voice coil lead due to the excessive length of the thread during the work, and improve the stability of the product.
- FIG. 1 is a perspective view showing the structure of an electroacoustic transducer according to an embodiment of the present invention
- FIG. 2 is a perspective view showing the structure of an electroacoustic transducer vibrating system according to an embodiment of the present invention
- Figure 3 is a schematic enlarged view of the portion A shown in Figure 2;
- FIG. 4 is a perspective view of a diaphragm of an electroacoustic transducer according to an embodiment of the present invention
- FIG. 5 is a front structural view of a diaphragm of an electroacoustic transducer according to an embodiment of the present invention
- an electroacoustic transducer of an embodiment of the present invention includes a vibration system, a magnetic circuit system (not shown in the drawings, common knowledge in the art), and a fixed vibration system and a magnetic circuit system.
- the vibration system includes a diaphragm 1 and a voice coil 2 coupled to the lower side of the diaphragm 1.
- the voice coil 2 is electrically connected to an external circuit, and the electrical signal in the terminal product controls the voice coil 2
- the electric signal, the voice coil 2 with the electric signal in the working process interacts with the magnetic circuit system to vibrate up and down, and then drives the diaphragm 1 to vibrate to generate sound.
- the diaphragm 1 comprises a flexible diaphragm body portion 12 and a rigid reinforcing portion 11, rigid plus The strong portion 1 1 is coupled to the center position of the diaphragm body portion 12 for raising the high frequency characteristics of the diaphragm 1.
- the diaphragm body portion 12 is composed of a non-conductive base material layer and a conductive metal layer.
- the base material layer includes at least two layers, and the metal layer is bonded between any adjacent two base material layers to prevent the metal layer 122 from Other components are short-circuited; preferably, the material of each substrate layer is
- PEE ⁇ PEN One or more of PEE ⁇ PEN , PEI, FAR, ⁇ ⁇ PPS, PES.
- the reinforcing portion 11 and the diaphragm body portion 12 are integrally joined by a colloid 123.
- the diaphragm body portion 12 of the present embodiment includes two base material layers 121 and is bonded to two substrates.
- the metal layer 122 between the layers 121 is a copper foil in the present embodiment.
- the substrate layer 121 and the metal layer 122 are bonded by the colloid 123, but are not limited to such a bonding method.
- the metal layer 122 is not limited to the structure of such a metal foil, and may be a metal layer formed by plating on the base material layer 121, such as a copper metal layer formed by electroplating.
- Figure 4 is a perspective view of the diaphragm
- Figure 5 is a schematic view of the front side of the diaphragm (i.e., the side away from the voice coil)
- Figure 6 is a schematic view of the reverse side of the diaphragm (ie, the side combined with the sound «), such as 4 to 6
- the metal layer 122 includes a first metal layer 122a on the inner side, a second metal layer 122b on the outer side, and a third metal house 122c connecting the first metal layer 122a and the second metal layer 122b;
- the first metal layer 122'a and the second metal layer 122b each comprise two separate portions to form two independent electrodes.
- the diaphragm body portion 12 includes a ball top portion at a center plane, a concave folded portion at the edge, and an outer casing at the edge of the folding ring portion.
- the joint portion 120 is fixedly coupled; the reinforcing portion 11 is coupled to the ball portion, and the joint portion 120 is fixedly coupled to the upper surface of the casing 3.
- the first metal layer 122a is a rectangular ring structure located at a position on the top edge of the ball body 12 near the folding ring portion, and the first metal layer 122a is electrically connected to the voice coil 2; two leads electrically connected to the independent electrodes 2, the present invention is formed in two portions two open short sides of the first rectangular ring 122 a metal layer 123, respectively, where the position of the disconnect portion of the metal layer 123 is not provided 122, the first metal layer 122a is formed into two parts, and these two parts are used as two independent electrodes, as shown in FIG.
- first metal layer 122a it is further provided with a first annular conductive terminal electrically connected to the metal layer 122a in a sleeping mat 13a, teach first conductive terminal 13 a quantity of at least two, and a coil 2 The two leads (outlet ends) are electrically connected.
- first conductive terminal 13a are provided for each electrode, and the lead wires of the voice coil 2 can be two with the corresponding electrodes. Any one of the conductive terminals 13a is electrically connected.
- the diaphragm body 12 is disposed on the base material layer 121 adjacent to the voice coil 2 side, and the corresponding first conductive neutron 13 a is provided with a escaping opening to facilitate the conductive connection of the lead wire of the voice coil 2 and the first conductive terminal 13 a by spot welding.
- the reinforcing portion 11 can simultaneously serve as a reinforcing plate during the spot welding process to prevent the diaphragm 1 from collapsing during the spot welding process, and the reinforcing portion 11 needs to cover the first conductive terminal 13a.
- the material of the reinforcing portion 11 is epoxy resin, PET, PEN, metal sheet, PFJ, PAR, FPS or PES.
- the second metal layer 122b is located at a position where the edge of the diaphragm body portion 1 is combined with the casing 3 to reduce the influence of the metal house 122 on the hardness of the diaphragm 1.
- the second metal layer 122b has a rectangular annular structure. In order to form two independent electrodes, a broken portion 123 is disposed on the two short sides of the rectangular second metal layer 122b, and the position of the disconnecting portion 123 is not set.
- Metal layer 122 is shown in FIG.
- the two corner portions of the second metal layer 122b are provided with a second conductive terminal 13b, and the two second conductive terminals 13b are respectively formed with the second metal layer 122b, as shown in FIG.
- the base material layer 121 corresponding to the upper side and the lower side of the second electrical terminal 13b is provided with a relief structure for avoiding the second conductive terminal 13b, and the second conductive terminal 13b is exposed to the base material layer 121, as shown in FIGS. 5 and 6.
- the terminal product can control the electrical signal inside the electroacoustic transducer by electrically connecting the second conductive terminal 13b or the electrical connector 4.
- the surface of the first conductive terminal 13a and the second conductive terminal 13b is provided with a metal protective layer formed by electroplating, preferably a tin metal layer having good adhesion and ductility.
- the tri-metal layer 122c is a strip-like structure on the two long sides of the rectangular first metal layer 122a and the rectangular second metal layer 122b, respectively, and the first metal layer 122a
- One electrode and the second metal layer is electrically connected to a respective one of the electrodes 122b, and the other electrode of the first metal layer 122 a and the undertaking of the respective other electrode 122b is connected to a second metal layer, the third metal layer
- the structure of 122c on the long side of the rectangle can increase the strength of the long side of the rectangular diaphragm 1, which is beneficial to improve the acoustic performance of the diaphragm 1.
- the third metal layer 122c is a three strip-like structure arranged in parallel, which can enhance the stability of the electrical connection.
- the diaphragm body portion 12 is provided with a first conductive terminal 13a electrically conductively coupled to the voice coil 2, and electrically conductively coupled to the terminal product or the electrical connector 4.
- the structure of the second conductive terminal 13b enables the lead of the voice coil 2 to be electrically connected without going out of a long thread, thereby avoiding the failure of the lead of the voice coil 2 during the working process, and improving the product. Stability; Moreover, the structure can directly connect the internal and external electrical signals of the electroacoustic transducer through the conductive terminals on the diaphragm 1, and the product manufacturing process is completed, thereby improving the production efficiency of the product.
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
Description
Claims
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020157006873A KR101638755B1 (ko) | 2012-11-25 | 2013-11-21 | 전기 음향 변환기 |
| US14/430,881 US9503822B2 (en) | 2012-11-25 | 2013-11-21 | Electroacoustic transducer |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210481998.2 | 2012-11-25 | ||
| CN201210481998.2A CN103024638B (zh) | 2012-11-25 | 2012-11-25 | 电声换能器 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2014079376A1 true WO2014079376A1 (zh) | 2014-05-30 |
Family
ID=47972681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CN2013/087609 Ceased WO2014079376A1 (zh) | 2012-11-25 | 2013-11-21 | 电声换能器 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US9503822B2 (zh) |
| KR (1) | KR101638755B1 (zh) |
| CN (1) | CN103024638B (zh) |
| WO (1) | WO2014079376A1 (zh) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104811869A (zh) * | 2015-04-14 | 2015-07-29 | 歌尔声学股份有限公司 | 一种振膜及一种振膜组装工艺 |
Families Citing this family (30)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103024638B (zh) | 2012-11-25 | 2015-09-30 | 歌尔声学股份有限公司 | 电声换能器 |
| US9712921B2 (en) * | 2014-08-25 | 2017-07-18 | Apple Inc. | High aspect ratio microspeaker having a two-plane suspension |
| CN104853294B (zh) * | 2015-04-23 | 2019-05-24 | 歌尔股份有限公司 | 一种硅胶振膜、扬声器模组和再加工硅胶振膜的方法 |
| CN104853304A (zh) * | 2015-04-23 | 2015-08-19 | 歌尔声学股份有限公司 | 一种硅胶振膜、受话器模组和加工硅胶振膜的方法 |
| CN104811878B (zh) * | 2015-05-05 | 2019-01-04 | 歌尔股份有限公司 | 一种扬声器振动组件及其组装方法 |
| USD783577S1 (en) * | 2015-09-16 | 2017-04-11 | Stillwater Designs And Audio, Inc. | Subwoofer |
| CN105611463B (zh) * | 2016-03-21 | 2019-11-15 | 歌尔股份有限公司 | 一种振膜和振膜的制造方法 |
| US10321235B2 (en) * | 2016-09-23 | 2019-06-11 | Apple Inc. | Transducer having a conductive suspension member |
| CN106792377A (zh) * | 2017-01-23 | 2017-05-31 | 瑞声科技(南京)有限公司 | 振膜及发声器件 |
| US10555085B2 (en) * | 2017-06-16 | 2020-02-04 | Apple Inc. | High aspect ratio moving coil transducer |
| CN206923018U (zh) * | 2017-06-20 | 2018-01-23 | 瑞声科技(新加坡)有限公司 | 音膜、发声器件和电子设备 |
| CN108513236B (zh) * | 2018-04-20 | 2023-12-08 | 山东共达电声股份有限公司 | 一种扬声器振动结构及扬声器 |
| CN109104675A (zh) * | 2018-07-13 | 2018-12-28 | 安克创新科技股份有限公司 | 一种振膜、扬声器用振动系统和扬声器 |
| CN109905825A (zh) * | 2019-03-13 | 2019-06-18 | 东莞涌韵音膜有限公司 | 具有悬挂件的振膜及使用该振膜的微型扬声器 |
| CN110248289B (zh) * | 2019-04-19 | 2021-10-19 | 瑞声科技(新加坡)有限公司 | 发声器 |
| CN110572746B (zh) * | 2019-08-19 | 2021-10-29 | 歌尔股份有限公司 | 一种用于发声装置的导电膜以及发声装置 |
| CN110545505A (zh) | 2019-08-19 | 2019-12-06 | 歌尔股份有限公司 | 一种用于发声装置的导电膜以及发声装置 |
| CN210986413U (zh) * | 2019-08-21 | 2020-07-10 | 罗冬梅 | 振动膜及扬声器 |
| CN112423204A (zh) * | 2019-08-21 | 2021-02-26 | 罗冬梅 | 振动膜及扬声器 |
| CN110708644A (zh) * | 2019-09-29 | 2020-01-17 | 歌尔科技有限公司 | 一种用于发声装置的导电膜以及发声装置 |
| CN110691308A (zh) * | 2019-09-29 | 2020-01-14 | 歌尔科技有限公司 | 一种用于发声装置的导电膜以及发声装置 |
| CN110691307A (zh) * | 2019-09-29 | 2020-01-14 | 歌尔科技有限公司 | 一种用于发声装置的导电膜以及发声装置 |
| CN110691306A (zh) * | 2019-09-29 | 2020-01-14 | 歌尔科技有限公司 | 一种用于发声装置的导电膜以及发声装置 |
| CN110784810B (zh) | 2019-09-29 | 2021-03-30 | 歌尔科技有限公司 | 一种用于发声装置的导电膜以及发声装置 |
| CN110620976A (zh) * | 2019-09-29 | 2019-12-27 | 歌尔科技有限公司 | 一种用于发声装置的导电膜以及发声装置 |
| CN210641063U (zh) * | 2019-11-11 | 2020-05-29 | 歌尔科技有限公司 | 一种用于发声装置的导电振膜及发声装置 |
| DE102020001252A1 (de) | 2020-02-26 | 2021-08-26 | Christian Alexander Groneberg | Lautsprechermembran und Verfahren zur Herstellung einer Lautsprechermembran für einen Lautsprecher des Typs Bändchenmagnetostat |
| CN111954135B (zh) * | 2020-08-19 | 2025-02-14 | 苏州礼乐乐器股份有限公司 | 一种带音梁及音隧的全频段高音质电子产品扬声器 |
| CN114125669B (zh) * | 2021-12-21 | 2023-06-09 | 歌尔股份有限公司 | 发声装置以及电子设备 |
| CN114222227B (zh) * | 2021-12-30 | 2024-06-11 | 歌尔股份有限公司 | 振膜及其制备方法、发声装置、电子设备 |
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2012
- 2012-11-25 CN CN201210481998.2A patent/CN103024638B/zh active Active
-
2013
- 2013-11-21 US US14/430,881 patent/US9503822B2/en active Active
- 2013-11-21 KR KR1020157006873A patent/KR101638755B1/ko active Active
- 2013-11-21 WO PCT/CN2013/087609 patent/WO2014079376A1/zh not_active Ceased
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| US20020141610A1 (en) * | 1999-01-05 | 2002-10-03 | Harman International Industries, Incorporated | Ceramic metal matrix diaphragm for loudspeakers |
| JP2006080938A (ja) * | 2004-09-10 | 2006-03-23 | Original Sangyo Kk | 電気−音声変換装置 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104811869A (zh) * | 2015-04-14 | 2015-07-29 | 歌尔声学股份有限公司 | 一种振膜及一种振膜组装工艺 |
| US10327074B2 (en) | 2015-04-14 | 2019-06-18 | Goertek, Inc. | Vibrating film and vibrating film assembling process |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20150044945A (ko) | 2015-04-27 |
| KR101638755B1 (ko) | 2016-07-11 |
| US9503822B2 (en) | 2016-11-22 |
| US20150256939A1 (en) | 2015-09-10 |
| CN103024638A (zh) | 2013-04-03 |
| CN103024638B (zh) | 2015-09-30 |
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