WO2021022417A1 - Composant de haut-parleur, procédé d'assemblage du composant de haut-parleur et appareil de génération de son - Google Patents

Composant de haut-parleur, procédé d'assemblage du composant de haut-parleur et appareil de génération de son Download PDF

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Publication number
WO2021022417A1
WO2021022417A1 PCT/CN2019/099103 CN2019099103W WO2021022417A1 WO 2021022417 A1 WO2021022417 A1 WO 2021022417A1 CN 2019099103 W CN2019099103 W CN 2019099103W WO 2021022417 A1 WO2021022417 A1 WO 2021022417A1
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WO
WIPO (PCT)
Prior art keywords
magnet
pole body
protrusion
speaker assembly
hole
Prior art date
Application number
PCT/CN2019/099103
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English (en)
Chinese (zh)
Inventor
张富坤
雷卫强
Original Assignee
海能达通信股份有限公司
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 海能达通信股份有限公司 filed Critical 海能达通信股份有限公司
Priority to PCT/CN2019/099103 priority Critical patent/WO2021022417A1/fr
Publication of WO2021022417A1 publication Critical patent/WO2021022417A1/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
    • H04R9/06—Loudspeakers

Definitions

  • This application relates to the field of audio technology, in particular to speaker components, speaker components assembling methods and sound generating equipment.
  • a speaker is a transducer device that converts an electrical signal into a sound signal.
  • the audio energy uses electromagnetic, piezoelectric or electrostatic effects to make the cone or diaphragm vibrate and resonate with the surrounding air to produce sound.
  • the inventor of the present application discovered that the existing speakers using internal and external dual-magnet magnetic field technology are easy to attract together after magnetization, which is not conducive to assembly, and the magnetic field distribution is easily restricted under the limitation of the structure of the speaker itself, which is prone to magnetic saturation. The risk of causing the voice coil to move in a low magnetic field, thereby affecting the quality of the sound emitted by the speaker.
  • the present application provides a speaker assembly, a method for assembling the speaker assembly, and a sound generating device to solve the technical problem that the speaker assembly is unfavorable for assembly and prone to the risk of magnetic saturation.
  • a technical solution adopted in this application is to provide a speaker assembly, including:
  • the first magnet is arranged on the first pole body
  • a second magnet arranged on the first pole body and coaxially with the first magnet, wherein a gap is formed between the second magnet and the first magnet;
  • the first pole body is provided with a first protrusion on one side facing the gap.
  • the assembly method includes:
  • the first pole body is provided with a first protrusion
  • the first magnet is bonded to the first pole body, and the inner peripheral surface of the first magnet is in contact with one end of the first protrusion.
  • the sound generating device includes a housing and a first pole body, a first magnet, and a second magnet arranged in the housing, The first magnet is arranged on the first pole body, the second magnet is arranged on the first pole body and is arranged coaxially with the first magnet, and the second magnet is connected to the first pole body.
  • a gap is formed between a magnet, wherein the first pole body is provided with a first protrusion on a side facing the gap.
  • the beneficial effect of the present application is that the positioning and limiting function of the first protrusion can be provided on the first pole body, thereby improving the assembly efficiency, and reducing the height of the overall speaker assembly, facilitating the miniaturization of the speaker assembly design.
  • arranging the first protrusion of the first pole body toward the gap increases the thickness of the first pole body in the gap, so that more magnetic energy can pass through here, thereby reducing the risk of hysteresis and magnetic saturation, and thereby improving the speaker assembly Sound quality.
  • Fig. 1 is a schematic structural diagram of an embodiment of a speaker assembly of the present application
  • FIG. 2 is a schematic diagram of an exploded structure of an embodiment of the speaker assembly of the present application.
  • FIG. 3 is a schematic cross-sectional structure view obtained by taking the section line III-III as the section line in FIG. 1;
  • FIG. 4 is a schematic diagram of a partial enlarged view of area IV in FIG. 3;
  • FIG. 5 is a schematic diagram of a first pole structure of an embodiment of the speaker assembly of the present application.
  • FIG. 6 is a schematic view of another view of the structure of the first pole body of an embodiment of the speaker assembly of the present application.
  • FIG. 7 is a schematic diagram of a bracket structure of an embodiment of the speaker assembly of the present application.
  • FIG. 8 is a schematic diagram of the second pole structure of an embodiment of the speaker assembly of the present application.
  • Fig. 9 is a schematic structural diagram of a prior art speaker assembly
  • FIG. 10 is a schematic structural diagram of another embodiment of the speaker assembly of the present application.
  • Fig. 11 is a schematic diagram of the magnetic field distribution of the prior art speaker assembly
  • FIG. 12 is a comparison diagram of the voice coil magnetic strength of the speaker assembly of the present application and the speaker assembly in the prior art in the acoustic performance test;
  • FIG. 13 is a schematic diagram of a magnetic field distribution of an embodiment of the speaker assembly of the present application.
  • FIG. 15 is a schematic flowchart of an embodiment of a speaker assembly method of the present application.
  • 16 is a schematic flowchart of another embodiment of the speaker assembly method of the present application.
  • Fig. 17 is a schematic structural diagram of an embodiment of a sound generating device of the present application.
  • the speaker assembly 100 includes: a first pole body 10, a first magnet 20, a second magnet 30, a bracket 40, a diaphragm 50, and a second pole.
  • the first magnet 20 is disposed on the first pole body 10, for example, the first magnet 20 may be fixed on the first pole body 10 by bonding or the like.
  • the second magnet 30 is arranged on the first pole body 10 and coaxially arranged with the first magnet 20.
  • the second magnet 30 may also be fixed to the first pole body 10 by means of bonding or the like.
  • the first magnet 20 and the second magnet 30 are located on the same side of the first pole body 10. Wherein, a gap is formed between the second magnet 30 and the first magnet 20.
  • the first magnet 20 and the second magnet 30 may have a ring shape, such as a circular ring, an elliptical ring, or a racetrack shape.
  • the second magnet 30 is smaller than the first magnet 20, and the second magnet 30 is located in the ring of the first magnet 20.
  • the magnetism of the first magnet 20 is opposite to that of the second magnet 30, and a gap is formed between the first magnet 20 and the second magnet 30. It can be understood that the gap can play a role in avoiding the air and prevent the first magnet 20 and the second magnet 30 from abutting.
  • the first pole body 10 is provided with a first protrusion 11 on the side facing the gap.
  • the cross section of the first protrusion 11 may be rectangular or arc-shaped.
  • the first protrusion 11 By arranging the first protrusion 11 on the first pole body 10, it can play a role of positioning and limiting, thereby improving assembly efficiency and reducing the height of the overall speaker assembly 100, facilitating the miniaturization of the speaker assembly.
  • arranging the first protrusion 11 of the first pole body 10 toward the gap increases the thickness of the first pole body 10 in the gap, thereby allowing more magnetic energy to pass there, thereby reducing the risk of hysteresis and magnetic saturation, and thus Improve the sound quality of the speaker assembly 100.
  • one end of the first protrusion 11 abuts against the inner peripheral surface of the first magnet 20, and the other end of the first protrusion 11 abuts against the outer peripheral surface of the second magnet 30. That is, the first magnet 20 and the second magnet 30 sandwich the first protrusion 11.
  • the speaker assembly 100 may further include a bracket 40.
  • the bracket 40 is located on the side of the first magnet 20 away from the first pole body 10. One end surface of the first magnet 20 is connected to the bracket 40, and the other end surface is connected to the first pole body 10, and the connection method may be bonding or the like.
  • the second pole body 60 is arranged on a side of the second magnet 30 away from the first pole body 10, and there is a magnetic gap between the second pole body 60 and the bracket 40.
  • the bracket 40 is connected to the first magnet 20, so that the part where the bracket 40 is connected to the first magnet 20 has the same magnetic properties as the first magnet 20, and the second pole body 60 is connected to the second magnet 30, so that As a result, the second pole body 60 has the same magnetic properties as the second magnet 30, so that there is a magnetic gap between the outer circumferential surface of the second pole body 60 and the bracket 40.
  • the side of the second pole body 60 facing the first pole body 10 is further provided with a second protrusion 61
  • the side of the bracket 40 facing the first pole body 10 is further provided with a third protrusion 44
  • the second protrusion 61 The same as the third protrusion 44.
  • the second protrusion 61 and the third protrusion 44 are located in the magnetic gap. It can be understood that the height, thickness or shape of the second protrusion 61 and the third protrusion 44 are the same.
  • the speaker assembly 100 may further include a diaphragm 50 and a voice coil 70.
  • the voice coil 70 is connected to the diaphragm 50, and one end of the winding of the voice coil 70 extends into the gap from the magnetic gap. .
  • the diaphragm 50 may be located on the side of the bracket 40 away from the first pole body 10. It can be understood that the voice coil 70 may also be connected with a voice coil wire (not shown in the figure), and a varying current is introduced through the voice coil wire to cause the voice coil 70 to generate a varying electric field, which can interact with the first magnet 20 and the second magnet 30.
  • the interaction of the constant magnetic field generated by the Lorentz force can drive the voice coil 70 to move in the magnetic gap, which in turn drives the diaphragm 50 to vibrate and produce sound, and the gap between the first magnet 20 and the second magnet 30 can be the voice coil 70 Provide more space for exercise.
  • the bracket 40 may include an inner ring 41, an outer ring 42 and a connecting plate 43.
  • the inner ring 41 and the outer ring 42 may be circular, oval, or the like.
  • One end of the connecting plate 43 is connected to the inner ring 41, and the other end is connected to the outer ring 42.
  • the diaphragm 50 is disposed on the outer ring 42 and may be fixed on the outer ring 42 by glue bonding, for example.
  • the inner ring 41 is provided with a third protrusion 44 on the side facing the first pole body 10. It can be understood that the bracket 40 can play the role of supporting the diaphragm 50 and at the same time interact with the second pole body 60 to form a magnetic gap so that the voice coil 70 can drive the diaphragm 50 to move.
  • the speaker assembly 100 may further include a gasket 80 disposed on the outer ring 42 to sandwich the outer edge of the diaphragm 50.
  • the cross section of the outer ring 42 can be L-shaped, etc.
  • the outer edge of the diaphragm 50 is located on the L-shaped outer ring 42, and the gasket 80 can be fixed on the L-shaped outer ring 42 by bonding or clamping. The above method can make the fixing of the diaphragm 50 stronger.
  • the first magnet 20 is connected to the inner ring 41, for example, by glue bonding.
  • the material of the inner ring 41 may be the same as the material of the first pole body 10 or the second pole body 60, for example, it may be made of a magnetically conductive material such as ferrite.
  • One end of the first magnet 20 is fixedly connected to the first pole body 10, and the other end is fixedly connected to the inner ring 41, so that the first pole body 10 and the bracket 40 can be connected as a whole.
  • a magnetic gap is formed between the outer circumferential surface of the second pole body 60 and the inner circumferential surface of the inner ring 41.
  • the inner ring 41 connected to the first magnet 20 has the same magnetism as the first magnet 20, and the second pole body 60 has the same magnetism as the second magnet 30, so that the second pole body 60 and the inner ring 41 can be A lateral magnetic gap is formed between. Therefore, the inner ring 41 not only plays a role of connecting and supporting, but also plays a role of magnetic permeability, thereby forming a magnetic gap with the second pole body 60 to facilitate the movement of the voice coil 70. .
  • the second protrusion 61 can play a positioning role during assembly, which can facilitate the assembly of the second pole body 60 and the second magnet 30.
  • the three protrusions 44 can also play a role in positioning, which can facilitate the assembly of the bracket 40 and the first magnet 20, thereby improving the assembly efficiency of the entire speaker assembly 100.
  • arranging the second protrusion 61 and the third protrusion 44 toward the gap between the first magnet 20 and the second magnet 30 can further change the parallelism of the magnetic circuit in the magnetic gap, optimize the distribution of the magnetic field, and expand the high magnetic flux range.
  • the high magnetic intensity distribution range can be increased when the voice coil 70 moves up and down, so that the sound quality of the speaker assembly 100 can be improved.
  • one end of the second protrusion 61 may abut the outer peripheral surface of the second magnet 30.
  • One end of the third protrusion 44 may abut the inner peripheral surface of the first magnet 20.
  • the second protrusion 61 may be provided on the outer edge of the second pole body 60.
  • the third protrusion 44 may be provided on the inner edge of the inner ring 41.
  • the first protrusion 11, the second protrusion 61, and the third protrusion 44 may have a closed ring shape, for example, all are circular rings. Of course, it can also be rectangular or racetrack-shaped. The details are not limited here.
  • the first protrusion 11 is parallel to the second protrusion 61 and the third protrusion 44.
  • the center of the first pole body 10 may be provided with a first through hole 12.
  • the second magnet 30 may be provided with a second through hole 32.
  • the second pole body 60 may be provided with a third through hole 62.
  • the first pole body 10, the first magnet 20, the second pole body 60, the second magnet 30 and the inner ring 41 are coaxially arranged, and the first through hole 12, the second through hole 32 and the third through hole 62 are connected to form a channel .
  • opening a through hole in the center of each component can not only reduce the weight of the overall speaker assembly 100, but also increase the internal air circulation, which is conducive to dissipating the heat generated by the speaker assembly 100 from the channel formed by the through hole, thereby improving the speaker The heat dissipation performance of the component 100.
  • the speaker assembly 100 may further include a tuning sheet 90.
  • the tuning sheet 90 may be made of materials such as paper or film.
  • the tuning piece 90 is arranged on the side of the first pole body 10 away from the first magnet 20, and the tuning piece 90 is used to seal the first through hole 12. It can be understood that the tuning sheet 90 is beneficial to adjust the back air pressure of the speaker assembly 100, so that tuning can be performed.
  • the side of the first pole body 10 away from the first magnet 20 is further provided with a groove 13, the groove 13 communicates with the first through hole 12, and the tuning piece 90 is accommodated in the groove 13.
  • the tuning piece 90 can be arranged in the groove 13 of the first pole body 10, thereby making the overall structure more compact, and also reducing the exposure of the tuning piece 90 from being damaged by other components, so that the tuning piece 90 can be adjusted. Form protection.
  • connecting plates 43 there are multiple connecting plates 43, such as three, four, or five.
  • a plurality of connecting plates 43 are evenly arranged around the inner ring 41. It can be understood that the connecting plates 43 are arranged at intervals to facilitate air circulation and further improve the heat dissipation performance of the speaker assembly 100.
  • a dust-proof net (not shown in the figure) may be provided between the connecting plates 43, and the dust-proof net connects two adjacent connecting plates 43. It can be understood that by providing a dust-proof net, it is possible to reduce the entry of dust or liquid into the speaker assembly 100.
  • the inner ring 41 and the outer ring 42 may not be on the same plane.
  • the outer ring 42 can be farther away from the first magnet 20 than the inner ring 41, so that the lower The probability of friction between the diaphragm 50 and the inner ring 41 is favorable for the diaphragm 50 and the bracket 40 to form a larger-volume cavity.
  • the inner ring 41 and the outer ring 42 may also be coplanar, so that the structure of the bracket 40 is more compact.
  • the connecting plate 43 is a curved arc-shaped plate, and the bending direction of the connecting plate 43 is a side away from the diaphragm 50. It can be understood that a cavity is formed between the bracket 40 and the diaphragm 50, and the connecting plate 43 is arranged to be curved toward the side away from the diaphragm 50, which can further increase the volume of the cavity, thereby facilitating the circulation of air and facilitating heat dissipation. , Can also help to form a better sound quality.
  • Fig. 9 is a schematic structural diagram of a speaker assembly 100' in the prior art
  • Fig. 10 is a schematic structural diagram of an embodiment of the speaker assembly 100 of the present application.
  • the environmental factors (humidity, temperature, etc.) of the two comparative speaker assemblies are the same.
  • FIG. 12 is a comparison diagram of the voice coil magnetic intensity of the speaker assembly of the present application and the speaker assembly in the prior art in the acoustic performance test. It can be understood that the inner and outer dual magnetic optimization in FIG. 12 corresponds to the speaker in the present application The magnetic strength of the component 100 and T4 upper and lower dual magnetic voice coils corresponds to the speaker component 100' in the prior art. It can be seen from FIG.
  • the total height of the magnetic circuit of the speaker component 100 of the present application is 2.9mm, which is
  • the total height of the magnetic circuit of the speaker assembly 100' is 3.70mm, that is, compared to the structure of the speaker assembly 100' in the prior art, the total height of the magnetic circuit of the speaker assembly 100 of the present application is the same or lower, and can also reach higher Magnetic strength; and the high magnetic strength range is larger and smoother, which is equivalent to more parallel magnetic induction lines, which can reduce distortion, higher sound density at intermediate frequencies, and higher frequency response.
  • FIG. 11 is a magnetic field distribution diagram of a speaker assembly 100' in the prior art
  • FIG. 13 is a schematic diagram of a magnetic field distribution of an embodiment of the speaker assembly 100 of the present application, which can be obtained by comparing FIG. 11 and FIG. Technology
  • the magnetic gap magnetic field distribution of the speaker assembly 100' is more scattered, and part of it forms a self-loop, and the magnetic strength is lost.
  • the magnetic gap magnetic field distribution of the speaker assembly 100 of the present application is more concentrated, and the magnetic field within the movement range of the voice coil 70 is stronger.
  • FIG. 14 is a comparison diagram of the frequency response curve of the speaker assembly 100 of the present application and the speaker assembly 100' in the prior art in the acoustic performance test, wherein the solid line corresponds to the speaker assembly 100 of the present application, and the dashed line corresponds to the prior art speaker assembly 100 '.
  • the SPL sound pressure level
  • the speaker assembly 100 of the present application can use smaller power consumption to achieve the same sound pressure level, which can reduce energy consumption while ensuring sound quality.
  • FIG. 15 is a schematic flowchart of an embodiment of a speaker assembly method according to the present application.
  • the speaker assembly is the speaker assembly described in any of the foregoing embodiments.
  • the assembly method includes the following steps:
  • S11 Provide a first pole body, a first magnet and a second magnet.
  • first pole body 10 the first magnet 20, and the second magnet 30 can refer to the speaker assembly 100 described in any of the above embodiments, and will not be repeated here.
  • S12 Magnetize the first magnet and the second magnet.
  • a constant current magnetizer or the like may be used to magnetize the first magnet 20 and the second magnet 30 so that the first magnet 20 and the second magnet 30 have opposite magnetic properties.
  • step S13 glue or the like may be used to bond the first magnet 20 to the first pole body 10, for example, on the first magnet 20 or the first pole body 10 or the first magnet 20 and the first pole body. Glue is applied to both 10 and the two are bonded together so that the inner peripheral surface of the first magnet 20 abuts one end of the first protrusion 11.
  • the inner peripheral surface of the first magnet 20 can also be brought into contact with one end of the first protrusion 11 first, and then glue dispensing is performed.
  • the assembly efficiency of the speaker assembly 100 can be effectively improved, thereby improving the production efficiency.
  • FIG. 16 is a schematic flowchart of another embodiment of a method for assembling a speaker assembly according to the present application, and the speaker assembly is the speaker assembly described in any of the foregoing embodiments.
  • the assembly method includes the following steps:
  • S21 Provide a first pole body, a second pole body, a first magnet, a second magnet and a bracket, the first pole body is provided with a first protrusion, and the second pole body is provided with a second protrusion, The bracket is provided with a third protrusion.
  • first pole body 10 the first magnet 20, the second magnet 30, the first protrusion 11, the second pole body 60, the second protrusion 61, the bracket 40, and the third protrusion 44 can be Please refer to the speaker assembly 100 described in any of the foregoing embodiments, which will not be repeated here.
  • Step S22 may be the same as step S12, and the details are not repeated here.
  • the first magnet 20 may be bonded to the first pole body 10 using glue or the like, for example, on the first magnet 20 or the first pole body 10 or the first magnet 20 and the first pole body. Glue is applied to both 10 and the two are bonded together so that the inner peripheral surface of the first magnet 20 abuts one end of the first protrusion 11.
  • the inner peripheral surface of the first magnet 20 can also be brought into contact with one end of the first protrusion 11 first, and then glue dispensing is performed.
  • step S23 The operation method of step S23 is basically the same as that of step S23, and will not be repeated here. It can be understood that step S24 and step S23 can be performed at the same time, or step S23 can also be performed before step S24.
  • step S25 glue is applied to the side of the second magnet 30 opposite to the second pole body 60, or glue is applied to the first pole body 10, or both the second magnet 30 and the first pole body 10 are applied. Cover the glue, and then use a special jig to stick the two together.
  • the outer peripheral surface of the second magnet 30 can be brought into contact with the other end of the first protrusion 11 first, and then the two can be bonded together.
  • step S26 the first magnet 20 and the inner ring 41 of the bracket 40 are bonded together.
  • the specific operation steps may be substantially the same as those in S25, and will not be repeated here. It can be understood that the diaphragm 50, the dust-proof net and other components in this step can be assembled according to some existing conventional technical means, and will not be repeated here.
  • the above assembly method can effectively prevent the first magnet 20 and the second magnet 30 from reversing the magnets due to the opposite magnetic properties of the two after magnetization, and the first protrusion 11, the second protrusion 61 and the third
  • the protrusion 44 can play a good positioning and limiting role, and therefore can effectively improve the assembly efficiency of the speaker assembly 100, thereby improving the production efficiency.
  • the present application also provides a sound generating device 200, which includes a housing 210 and the speaker assembly 100 according to any one of the above-mentioned embodiments arranged in the housing 210.
  • the sound-producing device 200 may be a sound-producing device such as a speaker, earphone, mobile phone, walkie-talkie, smart wearable watch capable of sounding, and navigator.
  • the specific content of the speaker assembly 100 reference may be made to the description of any of the foregoing embodiments, and details are not described herein again.

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

Abstract

La présente invention concerne un composant de haut-parleur, un procédé d'assemblage du composant de haut-parleur et un appareil de génération de son. Le composant de haut-parleur comprend un premier élément d'électrode, un premier aimant et un second aimant. Le premier aimant est disposé sur le premier élément d'électrode. Le second aimant est disposé sur le premier élément d'électrode, et est disposé de manière coaxiale par rapport au premier aimant. Un espace est formé entre le second aimant et le premier aimant. Une première saillie est disposée sur un côté du premier élément d'électrode faisant face à l'espace. L'invention concerne la première saillie sur le premier élément d'électrode de manière à obtenir une fonction de localisation et de limitation de position, ce qui permet d'améliorer l'efficacité d'assemblage, de réduire une hauteur globale du composant de haut-parleur et de faciliter la miniaturisation de la conception du composant de haut-parleur. De plus, la fourniture du premier élément d'électrode avec la première saillie dans la direction vers l'espace augmente l'épaisseur du premier élément d'électrode situé dans l'espace, ce qui permet d'augmenter une énergie magnétique audit emplacement, ce qui permet d'atténuer les risques d'hystérésis magnétique et de saturation, et d'améliorer en outre la qualité de génération de son du composant de haut-parleur.
PCT/CN2019/099103 2019-08-02 2019-08-02 Composant de haut-parleur, procédé d'assemblage du composant de haut-parleur et appareil de génération de son WO2021022417A1 (fr)

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PCT/CN2019/099103 WO2021022417A1 (fr) 2019-08-02 2019-08-02 Composant de haut-parleur, procédé d'assemblage du composant de haut-parleur et appareil de génération de son

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PCT/CN2019/099103 WO2021022417A1 (fr) 2019-08-02 2019-08-02 Composant de haut-parleur, procédé d'assemblage du composant de haut-parleur et appareil de génération de son

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001045213A1 (fr) * 1999-12-14 2001-06-21 Kirk Acoustics A/S Dispositif de contact electrique permettant de relier des composants electriques
CN102497612A (zh) * 2011-12-23 2012-06-13 深圳市韶音科技有限公司 一种骨传导扬声器及其复合振动装置
CN105472511A (zh) * 2014-12-01 2016-04-06 深圳市韶音科技有限公司 一种双定位式的骨传导扬声器装置
CN205249463U (zh) * 2013-06-05 2016-05-18 哈曼国际工业有限公司 具有内磁体电动机和永久磁体滚筒的多音路同轴扬声器
CN109698993A (zh) * 2017-10-20 2019-04-30 Gp 声学国际有限公司 扬声器

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001045213A1 (fr) * 1999-12-14 2001-06-21 Kirk Acoustics A/S Dispositif de contact electrique permettant de relier des composants electriques
CN102497612A (zh) * 2011-12-23 2012-06-13 深圳市韶音科技有限公司 一种骨传导扬声器及其复合振动装置
CN205249463U (zh) * 2013-06-05 2016-05-18 哈曼国际工业有限公司 具有内磁体电动机和永久磁体滚筒的多音路同轴扬声器
CN105472511A (zh) * 2014-12-01 2016-04-06 深圳市韶音科技有限公司 一种双定位式的骨传导扬声器装置
CN109698993A (zh) * 2017-10-20 2019-04-30 Gp 声学国际有限公司 扬声器

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