CN111464926B - Double-diaphragm vibration horn system - Google Patents
Double-diaphragm vibration horn system Download PDFInfo
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- CN111464926B CN111464926B CN202010273339.4A CN202010273339A CN111464926B CN 111464926 B CN111464926 B CN 111464926B CN 202010273339 A CN202010273339 A CN 202010273339A CN 111464926 B CN111464926 B CN 111464926B
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- basin frame
- washer
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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
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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
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
- H04R1/1091—Details not provided for in groups H04R1/1008 - H04R1/1083
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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
- H04R7/00—Diaphragms for electromechanical transducers; Cones
- H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
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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
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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
- H04R2209/00—Details of transducers of the moving-coil, moving-strip, or moving-wire type covered by H04R9/00 but not provided for in any of its subgroups
- H04R2209/041—Voice coil arrangements comprising more than one voice coil unit on the same bobbin
Abstract
The invention discloses a double-diaphragm vibration horn system, which comprises: a housing; the metal elastic sheet comprises an outer ring body, an elastic body and an inner ring body which are fixed in the shell and are integrally connected; the large magnetic circuit assembly comprises a large basin frame fixed in the inner ring body, a magnet fixedly arranged in the large basin frame in a penetrating way, a large washer and a large copper ring; the large sound film is arranged at the lower end of the large copper ring, and a large sound ring at the upper end of the large sound film extends into the space between the large basin frame and the magnet; the small magnetic circuit assembly comprises a small basin frame fixed at the upper end of the large basin frame, a magnet fixedly arranged in the small basin frame in a penetrating way, a small washer and a small copper ring; the small voice film is arranged at the upper end of the small copper ring, and the small voice coil at the lower end of the small voice film extends into the space between the small basin frame and the magnet; the small protecting cover assembly is fixed at the upper end of the shell; the large protecting cover assembly is fixed at the lower end of the shell; the large frame, the small frame, the magnet, the large washer and the small washer are fixed with the inner ring body and can vibrate up and down along with the up-and-down vibration of the large sound film and the small sound film.
Description
The technical field is as follows:
the invention relates to the technical field of acoustics, in particular to a double-diaphragm vibration horn system.
Background art:
the earphone is a popular portable sound device, but the existing common earphone has poor sound effect and does not have the vibration effect of heavy bass.
The earphone in the prior art only has one sound film, when the earphone works, the sound film generates vibration to make sound, the bass effect is limited, and strong vibration effect cannot be generated, so that when a consumer wears the earphone to watch stimulated actions, science fiction films or plays gun battles and action games, the consumer cannot experience real vibration waves to listen to the bass sound effects of more dynamic people like gunfire, war, flight and the like, and the requirement of the consumer is difficult to meet.
In view of the above, the present inventors propose the following.
The invention content is as follows:
the invention aims to overcome the defects of the prior art and provides a double-diaphragm vibration horn system.
In order to solve the technical problems, the invention adopts the following technical scheme: this two diaphragm vibration loudspeaker systems includes: a housing; the metal elastic sheet comprises an outer ring body fixed in the shell, a plurality of elastic bodies integrally formed on the inner side of the outer ring body and an inner ring body integrally connected with the elastic bodies, and the inner ring body can float up and down relative to the outer ring body through the elastic bodies; the large magnetic circuit assembly comprises a large basin frame fixed in the inner ring body of the metal elastic sheet, a magnet fixedly arranged in the large basin frame in a penetrating way, a large washer fixed at the lower end of the magnet and a large copper ring fixed at the lower end of the shell; the big sound film is arranged at the lower end of the big copper ring, and a big sound ring at the upper end of the big sound film extends into the space between the big basin frame and the magnet; the small magnetic circuit assembly comprises a small basin frame fixed at the upper end of the large basin frame, a magnet fixedly arranged in the small basin frame in a penetrating way, a small washer fixed at the upper end of the magnet and a small copper ring fixed at the upper end of the shell; the small voice coil at the lower end of the small voice film extends into the space between the small basin frame and the magnet; the small protecting cover assembly is fixed at the upper end of the shell and covers the small magnetic circuit assembly; the large protecting cover assembly is fixed at the lower end of the shell and covers the large magnetic circuit assembly; the large basin frame, the small basin frame, the magnet, the large washer and the small washer are fixed with the inner ring body, and when the large sound film and the small sound film vibrate up and down, the large sound film and the small sound film are tangent to the magnetic force line of the magnet to drive the large basin frame, the small basin frame, the magnet, the large washer and the small washer to vibrate up and down with the inner ring body.
Furthermore, in the above technical scheme, the lower end of the large protecting cover assembly is further provided with a frequency divider, and the frequency divider is electrically connected with the large voice coil and the small voice coil.
Furthermore, in the above technical scheme, the longitudinal section of the magnet is in a convex shape, a through hole is formed in the magnet along the lower end face of the magnet, the small washer is provided with a first hole site corresponding to the through hole, the large washer is provided with a second hole site corresponding to the through hole, and the large washer is further provided with a first tuning net at the second hole site.
Furthermore, in the above technical scheme, the large basin stand and the small basin stand are fixed into a whole to form an integrated structure.
Furthermore, in the above technical solution, the large basin stand and the small basin stand are of a split structure, the large basin stand includes an annular main body, an upper convex ring formed at the upper end of the inner side of the annular main body, and a lower convex ring formed at the lower end of the outer side of the annular main body, and the small basin stand is sleeved on the periphery of the upper convex ring and is fixedly connected; the magnet penetrates through the inner side of the upper convex ring and is fixedly connected with the upper convex ring.
Further, in the above technical solution, an inner flange is formed in the housing, and the outer ring body of the metal elastic sheet is disposed on the inner flange and is fixedly connected thereto.
Furthermore, among the above-mentioned technical scheme, little protecting cover subassembly is including being fixed in the little protecting cover of this shell upper end and setting up the second tuning net on this little protecting cover.
Furthermore, among the above-mentioned technical scheme, big protecting cover subassembly is including being fixed in the big protecting cover of this shell lower extreme and setting up the third tuning net on this big protecting cover.
Further, in the above technical solution, the metal elastic sheet is an alloy elastic sheet.
After adopting the technical scheme, compared with the prior art, the invention has the following beneficial effects: the invention adds a metal elastic sheet, a small sound film and a small magnetic circuit component, and fixes a large basin frame, a small basin frame, a magnet, a large washer and a small washer with an inner ring body of the metal elastic sheet. When a signal passes through the large voice coil of the large voice film and is tangent to the magnetic force lines of the magnet, the large voice film vibrates up and down to sound, and simultaneously, when the signal passes through the small voice coil of the small voice film and is tangent to the magnetic force lines of the magnet, the small voice film vibrates up and down to sound, so that double-sided sound production is realized, and the tone quality effect is enhanced; when the big sound film and the small sound film vibrate up and down, the big sound film and the small sound film are tangent with the magnetic force line of the magnet to drive the big basin frame, the small basin frame, the magnet, the big washer, the small washer and the inner ring body to vibrate up and down, so that the whole loudspeaker generates a vibration effect, namely, the loudspeaker can move up and down along with music, thereby achieving the vibration effect, so that a consumer can experience real vibration waves to listen to the heavy and low sound effects of more moving people like gunfire, war, flight and the like when watching stimulating actions, science fiction films or playing gun battles and action games, the consumer can feel personally on the scene, the sense of reality is extremely strong, and the use requirement of the consumer can be met; in addition, the loudspeaker system is assembled by combining the double sound films, the double voice coils and the double magnetic circuits with the metal elastic sheet, so that the whole loudspeaker system has the advantage of vibration effect; and the double magnetic circuits share one magnet, so that the structure can be simplified, parts are reduced, the cost can be saved, the structure can be more compact and smaller, and the magnetic-field-type magnetic-field sensor has strong market competitiveness.
Description of the drawings:
FIG. 1 is an exploded perspective view of the present invention;
fig. 2 is a schematic structural diagram of the present invention.
The specific implementation mode is as follows:
the invention is further illustrated below with reference to specific embodiments and the accompanying drawings.
Referring to fig. 1 and 2, there is provided a dual-diaphragm vibration horn system, comprising: a housing 1; the metal elastic sheet 2 comprises an outer ring body 21 fixed in the shell 1, a plurality of elastic bodies 22 integrally formed on the inner side of the outer ring body 21 and an inner ring body 23 integrally connected with the elastic bodies 22, wherein the inner ring body 23 can float up and down relative to the outer ring body 21 through the elastic bodies 22; a large magnetic circuit assembly, which comprises a large basin frame 31 fixed in the inner ring body 23 of the metal elastic sheet 2, a magnet 32 fixedly arranged in the large basin frame 31, a large washer 33 fixed at the lower end of the magnet 32, and a large copper ring 34 fixed at the lower end of the shell 1; a large voice diaphragm 4 mounted on the lower end of the large copper ring 34, wherein a large voice coil 41 on the upper end of the large voice diaphragm 4 extends into the space between the large basin rack 31 and the magnet 32; a small magnetic circuit assembly which comprises a small basin frame 51 fixed at the upper end of the large basin frame 31, the magnet 32 fixedly arranged in the small basin frame 51 in a penetrating way, a small washer 52 fixed at the upper end of the magnet 32 and a small copper ring 53 fixed at the upper end of the shell 1; a small voice diaphragm 6 mounted on the upper end of the small copper ring 53, a small voice coil 61 at the lower end of the small voice diaphragm 6 extending into the space between the small frame 51 and the magnet 32; a small protecting cover assembly 7 fixed on the upper end of the shell 1 and covering the small magnetic circuit assembly; a large protecting cover assembly 8 fixed at the lower end of the shell 1 and covering the upper part of the large magnetic circuit assembly; the large frame 31, the small frame 51, the magnet 32, the large washer 33, the small washer 52 and the inner ring body 23 are fixed together, and when the large sound film 4 and the small sound film 6 vibrate up and down, the large sound film and the small sound film are tangent to the magnetic force lines of the magnet 32 to drive the large frame 31, the small frame 51, the magnet 32, the large washer 33, the small washer 52 and the inner ring body 23 to vibrate up and down. The invention adds the metal elastic sheet 2, the small sound film 6 and the small magnetic circuit component, and fixes the large frame 31, the small frame 51, the magnet 32, the large washer 33 and the small washer 52 with the inner ring body 23 of the metal elastic sheet 2. When a signal passes through the large voice coil 41 of the large voice film 4 and is tangent to the magnetic force lines of the magnet 32, the large voice film 4 vibrates up and down to sound, and meanwhile, when the signal passes through the small voice coil 61 of the small voice film 6 and is tangent to the magnetic force lines of the magnet 32, the small voice film 6 vibrates up and down to sound, so that double-sided sound production is realized, and the voice quality effect is enhanced; when the big sound film 4 and the small sound film 6 vibrate up and down, the big sound film is tangent to the magnetic force lines of the magnet 32 to drive the big frame 31, the small frame 51, the magnet 32, the big washer 33, the small washer 52 and the inner ring body 23 to vibrate up and down, so that the whole loudspeaker generates a vibration effect, namely, the loudspeaker can move up and down along with music, thereby achieving the vibration effect, so that when a consumer watches stimulated actions, science fiction films or plays gun battles and action games, the consumer can experience real vibration waves to listen to the heavy low sound effects of more dynamic people like gunfire, war, flight and the like, and the consumer can feel personally on the scene and have extremely strong sense of reality, and the use requirements of the consumer can be met; in addition, the loudspeaker system is assembled by combining the double sound films, the double voice coils and the double magnetic circuits with the metal elastic sheet, so that the whole loudspeaker system has the advantage of vibration effect; and the double magnetic circuits share one magnet, so that the structure can be simplified, parts are reduced, the cost can be saved, the structure can be more compact and smaller, and the magnetic-field-type magnetic-field sensor has strong market competitiveness.
The metal elastic sheet 2 is an alloy elastic sheet, the strength is high, the elastic capacity is better, the metal elastic sheet 2 is additionally arranged, and the metal elastic sheet 2 can enable the small magnetic circuit assembly and the large magnetic circuit assembly to move up and down along with music, so that the low-frequency vibration effect is achieved.
The lower end of the large protecting cover assembly 8 is also provided with a frequency divider 9, and the frequency divider 9 is electrically connected with the large voice coil 41 and the small voice coil 61. The frequency divider 9 distributes signals according to circuits, when the signals are tangent with the magnetic force lines of the magnet 32 through the large voice coil 41 of the large voice film 4, the large voice film 4 vibrates up and down to sound, and simultaneously, when the signals are tangent with the magnetic force lines of the magnet 32 through the small voice coil 61 of the small voice film 6, the small voice film 6 vibrates up and down to sound, so that double-sided sound production is realized, the tone quality effect is enhanced, the tone color layering is clear, the fine and micro tone quality effect can be enjoyed, and consumers can obtain better experience.
A first stepped groove 12 is formed on the inner side of the upper end of the outer shell 1, and the small copper ring 53 is installed in the first stepped groove 12 and is fixed by glue; the outer edge of the small sound film 6 is arranged on the small copper ring 53 and is cemented by glue, and the small copper ring can improve the high-frequency ductility, the frequency response and the distortion stability of the loudspeaker; a small cover 71 is fitted into the first stepped groove 12 and presses against the outer edge of the small diaphragm 6. A second stepped groove 13 is formed in the inner side of the lower end of the outer shell 1, and the large copper ring 34 is installed in the second stepped groove 13 and is fixed by glue; the outer edge of the large sound film 4 is arranged on the large copper ring 34 and is fixed by glue, and the large copper ring can improve the high-frequency ductility, the frequency response and the distortion stability of the loudspeaker. The large cover 81 is fitted in the second stepped groove 13 and presses against the outer edge of the large diaphragm 4.
The longitudinal section of the magnet 32 is convex, and the magnet 32 is provided with a through hole 321 along the lower end surface, and the through hole 321 is used for forming inserted air flow when the large sound film 4 and the small sound film 6 vibrate up and down. The small washer 52 is provided with a first hole location 521 corresponding to the through hole 321, the large washer 33 is provided with a second hole location 331 corresponding to the through hole 321, and the large washer 33 is further provided with a first tuning net 332 at the second hole location 331.
The structural modes of the large frame 31 and the small frame 51 at least comprise the following two types:
the first method comprises the following steps: the large basin frame 31 and the small basin frame 51 are fixed into a whole to form an integrated structure.
And the second method comprises the following steps: the large basin frame 31 and the small basin frame 51 are of a split structure, the large basin frame 31 comprises an annular main body 311, an upper convex ring 312 formed at the upper end of the inner side of the annular main body 311, and a lower convex ring 313 formed at the lower end of the outer side of the annular main body 311, and the small basin frame 51 is sleeved on the periphery of the upper convex ring 312 and fixedly connected with the same; the magnet 32 is inserted into the upper collar 312 and is fixed.
An inner flange 11 is formed in the shell 1, and an outer ring body 21 of the metal elastic sheet 2 is arranged on the inner flange 11 and is fixedly connected with the inner flange.
The small protecting cover assembly 7 comprises a small protecting cover 71 fixed at the upper end of the shell 1 and a second tuning net 72 arranged on the small protecting cover 71, and meanwhile, the large protecting cover assembly 8 comprises a large protecting cover 81 fixed at the lower end of the shell 1 and a third tuning net 82 arranged on the large protecting cover 81.
The invention changes the symmetrical air flow formed when the horn system vibrates by adjusting the density, thickness and material of the first tuning net, the second tuning net and the third tuning net, improves the sensitivity and prevents dust and other impurities from entering the magnetic circuit.
In summary, the invention adds the metal elastic sheet 2, the small sound film 6 and the small magnetic circuit assembly, and fixes the large frame 31, the small frame 51, the magnet 32, the large washer 33 and the small washer 52 with the inner ring body 23 of the metal elastic sheet 2. When a signal passes through the large voice coil 41 of the large voice film 4 and is tangent to the magnetic force lines of the magnet 32, the large voice film 4 vibrates up and down to sound, and meanwhile, when the signal passes through the small voice coil 61 of the small voice film 6 and is tangent to the magnetic force lines of the magnet 32, the small voice film 6 vibrates up and down to sound, so that double-sided sound production is realized, and the voice quality effect is enhanced; when the big sound film 4 and the small sound film 6 vibrate up and down, the big sound film is tangent to the magnetic force lines of the magnet 32 to drive the big frame 31, the small frame 51, the magnet 32, the big washer 33, the small washer 52 and the inner ring body 23 to vibrate up and down, so that the whole loudspeaker generates a vibration effect, namely, the loudspeaker can move up and down along with music, thereby achieving the vibration effect, so that when a consumer watches stimulated actions, science fiction films or plays gun battles and action games, the consumer can experience real vibration waves to listen to the heavy low sound effects of more dynamic people like gunfire, war, flight and the like, and the consumer can feel personally on the scene and have extremely strong sense of reality, and the use requirements of the consumer can be met; in addition, the loudspeaker system is assembled by combining the double sound films, the double voice coils and the double magnetic circuits with the metal elastic sheet, so that the whole loudspeaker system has the advantage of vibration effect; and the double magnetic circuits share one magnet, so that the structure can be simplified, parts are reduced, the cost can be saved, the structure can be more compact and smaller, and the magnetic-field-type magnetic-field sensor has strong market competitiveness.
It should be understood that the above description is only exemplary of the present invention, and is not intended to limit the scope of the present invention, which is defined by the appended claims.
Claims (7)
1. A dual diaphragm vibrating horn system characterized in that: it includes:
a housing (1);
the metal elastic sheet (2) comprises an outer ring body (21) fixed in the shell (1), a plurality of elastic bodies (22) integrally formed on the inner side of the outer ring body (21) and an inner ring body (23) integrally connected with the elastic bodies (22), and the inner ring body (23) can float up and down relative to the outer ring body (21) through the elastic bodies (22);
the large magnetic circuit component comprises a large basin frame (31) fixed in the inner ring body (23) of the metal elastic sheet (2), a magnet (32) fixedly arranged in the large basin frame (31) in a penetrating way, a large washer (33) fixed at the lower end of the magnet (32), and a large copper ring (34) fixed at the lower end of the shell (1);
a big voice film (4) which is arranged at the lower end of the big copper ring (34), and a big voice coil (41) at the upper end of the big voice film (4) extends into the interval between the big basin frame (31) and the magnet (32);
the small magnetic circuit assembly comprises a small basin frame (51) fixed at the upper end of the large basin frame (31), a magnet (32) fixedly arranged in the small basin frame (51) in a penetrating way, a small washer (52) fixed at the upper end of the magnet (32) and a small copper ring (53) fixed at the upper end of the shell (1);
a small sound film (6) which is arranged at the upper end of the small copper ring (53), and a small voice coil (61) at the lower end of the small sound film (6) extends into the interval between the small basin frame (51) and the magnet (32);
a small protecting cover assembly (7) fixed at the upper end of the shell (1) and covering above the small magnetic circuit assembly;
a large protecting cover assembly (8) fixed at the lower end of the shell (1) and covering the upper part of the large magnetic circuit assembly;
the large frame (31), the small frame (51), the magnet (32), the large washer (33) and the small washer (52) are fixed with the inner ring body (23), and when the large sound film (4) and the small sound film (6) vibrate up and down, the large sound film and the small sound film are tangent to magnetic lines of force of the magnet (32) to drive the large frame (31), the small frame (51), the magnet (32), the large washer (33) and the small washer (52) to vibrate up and down with the inner ring body (23); the longitudinal section of the magnet (32) is convex;
the large basin frame (31) and the small basin frame (51) are fixed into a whole to form an integrated structure; or, the large basin frame (31) and the small basin frame (51) are of a split structure, the large basin frame (31) comprises an annular main body (311), an upper convex ring (312) formed at the upper end of the inner side of the annular main body (311) and a lower convex ring (313) formed at the lower end of the outer side of the annular main body (311), and the small basin frame (51) is sleeved on the periphery of the upper convex ring (312) and fixedly connected with the upper convex ring; the magnet (32) penetrates through the inner side of the upper convex ring (312) and is fixedly connected with the upper convex ring.
2. A dual diaphragm vibrating horn system as set forth in claim 1, wherein: big protecting cover subassembly (8) lower extreme still is provided with frequency divider (9), and this frequency divider (9) and big voice coil (41) and little voice coil (61) equal electric connection.
3. A dual diaphragm vibrating horn system as set forth in claim 1, wherein: a through hole (321) is formed in the magnet (32) along the lower end face of the magnet, a first hole site (521) corresponding to the through hole (321) is arranged on the small washer (52), a second hole site (331) corresponding to the through hole (321) is arranged on the large washer (33), and a first tuning net (332) is arranged on the second hole site (331) of the large washer (33).
4. A dual diaphragm vibratory horn system as set forth in any one of claims 1-3 wherein: an inner flange (11) is formed in the shell (1), and an outer ring body (21) of the metal elastic sheet (2) is arranged on the inner flange (11) and is fixedly connected with the inner flange.
5. The dual diaphragm vibratory horn system of claim 4, wherein: little protecting cover subassembly (7) including being fixed in little protecting cover (71) of this shell (1) upper end and setting up second tuning net (72) on this little protecting cover (71).
6. The dual diaphragm vibratory horn system of claim 4, wherein: big protecting cover subassembly (8) are including being fixed in big protecting cover (81) of this shell (1) lower extreme and setting up third tuning net (82) on this big protecting cover (81).
7. The dual diaphragm vibratory horn system of claim 4, wherein: the metal elastic sheet (2) is an alloy elastic sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010273339.4A CN111464926B (en) | 2020-04-09 | 2020-04-09 | Double-diaphragm vibration horn system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010273339.4A CN111464926B (en) | 2020-04-09 | 2020-04-09 | Double-diaphragm vibration horn system |
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| Publication Number | Publication Date |
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| CN111464926A CN111464926A (en) | 2020-07-28 |
| CN111464926B true CN111464926B (en) | 2021-11-12 |
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| CN202010273339.4A Active CN111464926B (en) | 2020-04-09 | 2020-04-09 | Double-diaphragm vibration horn system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113423049A (en) * | 2021-08-25 | 2021-09-21 | 南昌龙旗信息技术有限公司 | Watch (watch) |
| CN114125665A (en) * | 2021-12-21 | 2022-03-01 | 国英电子(惠州)有限公司 | Double-tone double-membrane pneumatic tweeter |
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| JP3185469U (en) * | 2013-06-07 | 2013-08-15 | パナソニック株式会社 | Speaker |
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| CN110049413A (en) * | 2019-05-10 | 2019-07-23 | 广东朝阳电子科技股份有限公司 | The vibration moving-coil compound horn of sound quality modified form double magnetic circuit double diaphragm |
| CN209731560U (en) * | 2019-05-10 | 2019-12-03 | 广东朝阳电子科技股份有限公司 | The vibration moving-coil compound horn of sound quality modified form double magnetic circuit double diaphragm |
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