WO2021196766A1 - Dispositif d'émission de son et appareil électronique - Google Patents

Dispositif d'émission de son et appareil électronique Download PDF

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Publication number
WO2021196766A1
WO2021196766A1 PCT/CN2020/138576 CN2020138576W WO2021196766A1 WO 2021196766 A1 WO2021196766 A1 WO 2021196766A1 CN 2020138576 W CN2020138576 W CN 2020138576W WO 2021196766 A1 WO2021196766 A1 WO 2021196766A1
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WO
WIPO (PCT)
Prior art keywords
layer
housing
sound
composite material
protective layer
Prior art date
Application number
PCT/CN2020/138576
Other languages
English (en)
Chinese (zh)
Inventor
王宇
陈国强
陈阿亮
刘广福
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 WO2021196766A1 publication Critical patent/WO2021196766A1/fr

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    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B1/00—Layered products having a non-planar shape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/01—Layered products comprising a layer of metal all layers being exclusively metallic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/01—Layered products comprising a layer of metal all layers being exclusively metallic
    • B32B15/012—Layered products comprising a layer of metal all layers being exclusively metallic one layer being formed of an iron alloy or steel, another layer being formed of aluminium or an aluminium alloy
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/18—Layered products comprising a layer of metal comprising iron or steel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/02—Physical, chemical or physicochemical properties
    • B32B7/022—Mechanical properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/02—Physical, chemical or physicochemical properties
    • B32B7/027—Thermal properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/005—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising one layer of ceramic material, e.g. porcelain, ceramic tile
    • B32B9/007—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising one layer of ceramic material, e.g. porcelain, ceramic tile comprising carbon, e.g. graphite, composite carbon
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B9/041—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material of metal
    • 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
    • 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
    • H04R9/022—Cooling arrangements
    • 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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/10—Properties of the layers or laminate having particular acoustical properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/304—Insulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties

Definitions

  • the present invention relates to the technical field of acoustics, in particular to a sound generating device and electronic equipment.
  • the sound emitting device usually includes a housing and a sounding monomer.
  • the sounding monomer is arranged in a cavity enclosed by the housing.
  • the sounding monomer is used to convert electrical energy into kinetic energy, drive the gas to vibrate, and radiate sound outward.
  • the sound-emitting unit heats up during operation, and the temperature rise may cause the sound-generating parts in the sound-generating unit to be thermally deformed, thereby affecting its acoustic performance, resulting in poor sounding effects of the sound-generating device.
  • the main purpose of the present invention is to provide a sound generating device with good heat dissipation effect of the casing and capable of improving acoustic performance.
  • the present invention provides a sound emitting device, including:
  • a housing in which a cavity is formed in which a cavity is formed
  • the vocal monomer is arranged in the cavity
  • the housing is set as a composite material piece
  • the composite material piece includes a protective layer and a heat conductive layer, and in a direction outward from the inside of the housing, the protective layer and the heat conductive layer
  • the layers are arranged in a layered arrangement, the rigidity of the protective layer is greater than that of the thermally conductive layer, and the thermal conductivity of the protective layer is smaller than that of the thermally conductive layer.
  • the density of the protective layer is greater than that of the thermally conductive layer.
  • the material of the protective layer is steel, and the material of the heat conducting layer is aluminum or graphite.
  • the protective layer is provided in multiples, and the multiple protective layers include a first steel layer and a second steel layer, and the heat conducting layer is provided on the first steel layer and the second steel layer. Between layers.
  • the ratio of the thickness of the first steel layer or the second steel layer to the thickness of the thermally conductive layer is not less than 0.4:1 and not more than 0.6:1.
  • the thickness ratio between the first steel layer, the second steel layer, and the heat conducting layer is 0.5:1:0.5.
  • the housing includes a plastic part, the plastic part is provided with an opening, the composite material part is arranged to cover the opening, and the peripheral side of the composite material part is embedded in the plastic Piece.
  • the composite material part is embedded in the plastic part by injection molding.
  • the vocal monomer separates the cavity to form a front acoustic cavity and a rear acoustic cavity that are arranged in a front-to-rear direction
  • the composite material piece is provided with two
  • the two composite material pieces are respectively provided
  • the two sides of the shell in the front and back upward direction are arranged opposite to the front and rear ends of the sound emitting unit.
  • the present invention also provides an electronic device, including the above-mentioned sound emitting device.
  • the present invention provides a sound generating device. At least a part of the housing of the sound generating device is set as a composite material piece.
  • the composite material piece includes a protective layer and a heat conductive layer. It is arranged in layers, the rigidity of the protective layer is greater than that of the heat-conducting layer, and the thermal conductivity of the protective layer is smaller than that of the heat-conducting layer. Due to the strong rigidity of the protective layer, the composite material part has better anti-deformation performance, which can better protect the sound monomer in the shell, and the thermal conductivity of the heat conduction layer is higher, which makes the overall thermal conductivity of the composite material part better.
  • the shell has better thermal conductivity under the premise of ensuring the strength, so that the vocal unit can quickly dissipate heat during operation, and the working temperature is maintained at a low level, avoiding high temperature affecting the performance of the vocal unit, thereby improving Acoustic performance of the vocal monomer, to obtain a better acoustic effect.
  • FIG. 1 is a schematic diagram of a three-dimensional structure of an embodiment of a sound generating device provided by the present invention
  • FIG. 2 is a schematic diagram of a three-dimensional structure of the sound generating device in FIG. 1 from another angle;
  • Figure 3 is a top view of the sounding device in Figure 1;
  • Figure 4 is a front view of the sounding device in Figure 1;
  • Figure 5 is an A-A cross-sectional view of the sounding device in Figure 4.
  • Fig. 6 is an enlarged schematic view of the composite material part in Fig. 5.
  • Label name Label name 1 case 111
  • the first steel layer 2 Vocal monomer 112
  • Second steel layer 10 Composite parts 13 Plastic parts 11 Protective layer 31 Front vocal cavity 12 Thermal conductive layer 32 Back cavity
  • the directional indication is only used to explain the relative positional relationship, movement, etc. between the components in a specific posture, if the specific posture changes , The directional indication changes accordingly.
  • the present invention provides a sound emitting device and an electronic product with the sound emitting device.
  • the electronic product can be, but is not limited to, mobile phones, televisions, computers, speakers, etc.
  • the main improvement point of the present invention is to improve the sound emitting device, the following combination
  • the sound device provided by the present invention is introduced and explained in detail.
  • the present invention provides a sounding device. Please refer to FIGS. 1 to 5.
  • the sounding device includes a housing 1 and a sounding monomer 2.
  • a cavity is formed in the housing 1, and the sounding monomer 2 is arranged in the cavity.
  • the vocal unit 2 can be, but is not limited to, a moving coil type unit, a capacitive type unit, a piezoelectric type unit, an electromagnetic type unit, an electric ion type unit or a pneumatic type unit.
  • the sound-emitting unit 2 includes a magnetic circuit system and a vibration system.
  • the vibration system includes a sounding part and a conversion part.
  • the vocal part is used for vibrating sound.
  • the conversion part is used to convert electrical energy into kinetic energy.
  • the vocal part is the diaphragm of the moving iron type monomer, the diaphragm of the moving coil type monomer, and so on.
  • the conversion part is a coil, an armature, etc.
  • the coil When working, the coil responds to the electric signal of the external circuit and moves in the magnetic field of the magnetic circuit system, and drives the vocal part to vibrate.
  • the vibrating part drives the gas to vibrate, thereby radiating sound outward.
  • heat will be generated, which will cause the temperature in the cavity to rise, which may cause deformation of the components in the sounding monomer 2, thereby affecting its acoustic performance.
  • the housing 1 is configured as a composite material 10, and the composite material 10 includes a protective layer 11 and a thermally conductive layer 12, and a protective layer 11 and The heat-conducting layer 12 is arranged in layers in the direction outward from the inside of the casing 1, the rigidity of the protective layer 11 is greater than that of the heat-conducting layer 12, and the thermal conductivity of the protective layer 11 is smaller than that of the heat-conducting layer 12.
  • the composite material part 10 Due to the strong rigidity of the protective layer 11, the composite material part 10 has better anti-deformation performance, which can better protect the sound-producing monomer 2 in the housing 1, and the thermal conductivity layer 12 has a higher thermal conductivity, which makes the composite material part 10 The overall thermal conductivity is better.
  • the housing 1 has better thermal conductivity under the premise of ensuring the strength, so that the sound monomer 2 can quickly dissipate heat during operation, and the working temperature is maintained at a low level to avoid the effect of high temperature.
  • the working performance of the monomer 2 thereby improving the acoustic performance of the sound-producing monomer 2, and obtaining a better acoustic effect.
  • the protective layer 11 and the heat-conducting layer 12 can be made of multiple materials.
  • the protective layer 11 is preferably a material with strong resistance to deformation and durability, as long as it can protect the internal parts of the housing 1, for example, Stainless steel, cold rolled steel or iron, etc.
  • the thermal conductive layer 12 is preferably a material with light weight and good thermal conductivity, such as copper, aluminum or graphite.
  • the density of the protective layer 11 is greater than that of the thermally conductive layer 12. In this way, the overall density of the composite material piece 10 is lowered, and the weight of the composite material piece 10 is reduced, which is beneficial to the lighter weight of the sound generating device, so that the overall weight of the housing 1 is lighter and the thermal conductivity is better.
  • the material of the protective layer 11 is steel, including but not limited to materials with strong rigidity and durability such as stainless steel and cold-rolled steel.
  • the material of the thermal conductive layer 12 is aluminum or graphite, which has good thermal conductivity and low density.
  • aluminum may be pure aluminum or aluminum alloy, as long as it contains aluminum and has a higher thermal conductivity than steel. Taking the protective layer 11 of stainless steel and the thermal conductive layer 12 of aluminum as an example, the thermal conductivity ⁇ of stainless steel is about 15-20, and the thermal conductivity ⁇ of aluminum is about 150-230, which is about 10 times that of stainless steel.
  • the performance of the heat conduction uniformity and speed of the composite material 10 is improved, which greatly improves the temperature rise effect of the sound generating device, thereby greatly improving the acoustic performance.
  • the density of stainless steel is about 7.9g/cm 3
  • the density of aluminum is about 2.7g/cm 3 , so that the overall density of the composite material 10 is reduced and the quality is reduced, thereby reducing the overall weight of the sound device, which is beneficial to the electronic equipment Lightweight.
  • the protective layer 11 is provided in multiples, and the multiple protective layers 11 include a first steel layer 111 and a second steel layer 112, and the heat conducting layer 12 is provided on the first steel layer 111 and the second steel layer. Between 112. As a result, the thermal conductive layer 12 is protected by the first steel layer 111 and the second steel layer 112 in the middle, which further improves the anti-deformation performance of the composite material 10, avoids damage to the thermal conductive layer 12, and prolongs the service life of the housing 1.
  • the thickness ratio between the thickness of the first steel layer 111 or the second steel layer 112 and the thermal conductive layer 12 is not less than 0.4:1 and not more than 0.6:1.
  • the composite On the premise that the material piece 10 has sufficient strength, the temperature rise performance of the housing 1 is significantly improved, thereby improving the acoustic performance of the sound generating device.
  • the thickness ratio between the first steel layer 111, the second steel layer 112, and the heat conducting layer 12 is 0.5:1:0.5.
  • the housing 1 includes a plastic part 113, which is provided with For the opening, the composite material part 10 is arranged to cover the opening, and the peripheral side of the composite material part is embedded in the plastic part 113.
  • the plastic part 113 is used to make the irregularly shaped or bent part of the shell 1, while the composite material part 10 is in a regular flat shape and is embedded in the plastic part 113, which is beneficial to the overall manufacture and molding of the shell 1 .
  • the composite material part 10 is embedded in the plastic part by injection molding. In this way, the sealing performance of the entire casing is ensured.
  • the sound-producing monomer 2 separates the cavities to form a front acoustic cavity 31 and a rear acoustic cavity 32 arranged in a front-to-back direction.
  • the composite material 10 is arranged in the thickness direction of the sounding device.
  • the distance between the composite material 10 and the sounding monomer 2 is shortened, which is conducive to heat conduction and dissipation along a shorter path.
  • due to the composite The material part 10 has a flatter shape relative to the plastic part 113, which is beneficial to reduce the overall thickness of the housing 1, thereby reducing the overall volume of the sound generating device.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Mechanical Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Casings For Electric Apparatus (AREA)

Abstract

La présente invention concerne un dispositif de production de son. Le dispositif de production de sons comprend un boîtier et une unité de production de sons. Une cavité est formée dans le boîtier, et l'unité de production de son est disposée dans la cavité. Au moins une partie du boîtier est configurée pour être un élément en matériau composite comprenant une couche protectrice et une couche thermoconductrice. La couche de protection et la couche thermoconductrice sont empilées dans une direction allant de l'intérieur vers l'extérieur du boîtier. La rigidité de la couche protectrice est supérieure à celle de la couche thermoconductrice, et le coefficient de conductivité thermique de la couche protectrice est inférieur à celui de la couche thermoconductrice. Le boîtier présente une conductivité thermique améliorée tout en conservant sa solidité, ce qui permet à l'unité de production de sons de dissiper rapidement la chaleur pendant le fonctionnement, de maintenir la température de fonctionnement à un niveau bas afin d'éviter qu'une température élevée n'affecte les performances opérationnelles de l'unité de production de sons, et d'améliorer en conséquence les performances acoustiques de l'unité de production de sons et d'obtenir de bons effets acoustiques.
PCT/CN2020/138576 2020-03-30 2020-12-23 Dispositif d'émission de son et appareil électronique WO2021196766A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202010240578.XA CN113473322A (zh) 2020-03-30 2020-03-30 发声装置及电子设备
CN202010240578.X 2020-03-30

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Publication Number Publication Date
WO2021196766A1 true WO2021196766A1 (fr) 2021-10-07

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016155328A1 (fr) * 2015-03-31 2016-10-06 歌尔声学股份有限公司 Module de haut-parleur
CN206433162U (zh) * 2017-01-12 2017-08-22 瑞声科技(新加坡)有限公司 扬声器模组
CN206658295U (zh) * 2017-04-27 2017-11-21 歌尔股份有限公司 扬声器模组
CN109246553A (zh) * 2018-11-09 2019-01-18 歌尔股份有限公司 一种应用于扬声器振膜的补强部及振膜
CN209030433U (zh) * 2018-11-21 2019-06-25 广东江创精密科技有限公司 便于散热和定位安装的扬声器模组外壳
CN210168068U (zh) * 2019-07-22 2020-03-20 瑞声科技(新加坡)有限公司 发声装置和移动终端

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN205584479U (zh) * 2016-03-31 2016-09-14 歌尔声学股份有限公司 扬声器模组
CN205793893U (zh) * 2016-05-23 2016-12-07 联想(北京)有限公司 电子设备
CN206341416U (zh) * 2016-12-28 2017-07-18 歌尔科技有限公司 扬声器模组

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016155328A1 (fr) * 2015-03-31 2016-10-06 歌尔声学股份有限公司 Module de haut-parleur
CN206433162U (zh) * 2017-01-12 2017-08-22 瑞声科技(新加坡)有限公司 扬声器模组
CN206658295U (zh) * 2017-04-27 2017-11-21 歌尔股份有限公司 扬声器模组
CN109246553A (zh) * 2018-11-09 2019-01-18 歌尔股份有限公司 一种应用于扬声器振膜的补强部及振膜
CN209030433U (zh) * 2018-11-21 2019-06-25 广东江创精密科技有限公司 便于散热和定位安装的扬声器模组外壳
CN210168068U (zh) * 2019-07-22 2020-03-20 瑞声科技(新加坡)有限公司 发声装置和移动终端

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