CN108429988B - Ultra-thin sound box structure - Google Patents
Ultra-thin sound box structure Download PDFInfo
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- CN108429988B CN108429988B CN201810389994.9A CN201810389994A CN108429988B CN 108429988 B CN108429988 B CN 108429988B CN 201810389994 A CN201810389994 A CN 201810389994A CN 108429988 B CN108429988 B CN 108429988B
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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
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
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Abstract
The invention discloses an ultrathin sound box structure which comprises a sound guide sound box, a full-frequency loudspeaker and a high pitch loudspeaker, wherein the full-frequency loudspeaker comprises a basin frame, magnetic steel, a voice coil, a magnet, a magnetic conduction plate, a sound basin, a dust cap and a centering support sheet, the back surface of the centering support sheet is bonded in a groove, the front surface of the centering support sheet is fixedly connected with the sound basin, the sound basin is of a V-shaped structure, an arc folding ring is arranged on the sound basin, the sound of the whole ultrathin sound box is more balanced by matching the full-frequency loudspeaker with the high pitch loudspeaker, and the same effect as the sound quality of a large-volume sound box on the market can be achieved.
Description
Technical Field
The invention relates to the field of sound box equipment, in particular to an ultrathin sound box structure.
Background
With the development of science and technology, portable speakers gradually become a very popular product in social life due to their features of portability and complete functions, and are continuously developed with the passage of time. As a portable sound box product, the sound box is required to be small in size, and to have sufficient power output and excellent low-frequency performance because the practicability is required to be satisfied. Thus, a large horn unit with high power and large stroke must be used, the horn is often very thick and still needs a relatively large mechanical installation position for installation, and thus, the available space left inside the sound box is very small, the thickness of the sound box is very large, the appearance is not attractive, and the sound box is not convenient to carry.
Disclosure of Invention
The invention aims to provide a technical scheme of an ultrathin sound box structure aiming at the defects in the prior art, the ultrathin sound box structure is simple in structure and convenient to carry, the special arc-shaped folding ring is designed on the cone of the full-frequency loudspeaker, in addition, the V-shaped structure of the cone is added, the vibration area of the cone is effectively enlarged, the response capability of medium and low frequencies is improved, meanwhile, structural innovation is carried out on the sound guiding sound box, a bass sound guiding groove, an upper cover and a lower cover form an independent cavity inside the sound guiding sound box, the strength of sound is increased through the specific bass sound guiding groove, the bass effect of the full-frequency loudspeaker is stronger, the sound of the whole ultrathin sound box is more balanced by using the full-frequency loudspeaker and the high-frequency loudspeaker in a matched mode, and the same effect as the sound quality of large-volume sound boxes on the market can be achieved.
In order to solve the technical problems, the invention adopts the following technical scheme:
the utility model provides an ultra-thin audio amplifier structure, includes leading sound audio amplifier, full loudspeaker and high pitch loudspeaker, full loudspeaker include basin frame, magnet steel, voice coil loudspeaker voice coil, magnet, magnetic conductive plate, sound basin, dustproof cap and centering support piece, its characterized in that: the sound basin is of a V-shaped structure, and an arc-shaped folding ring is arranged on the sound basin; the arc-shaped corrugated ring ensures that the sound basin moves along the axial direction of the loudspeaker, and can block air circulation, and the V-shaped structure of the sound basin increases the vibration area, so that the vibration area of the sound basin can be effectively enlarged on the premise of the thinner thickness of the sound basin.
Furthermore, the sound guiding sound box comprises an upper cover and a lower cover, wherein a full-frequency loudspeaker fixing groove, a high pitch loudspeaker fixing groove and a sound guiding port are formed in the upper surface of the upper cover, a low pitch loudspeaker fixing groove and a separation plate are formed in the lower surface of the upper cover, and the high pitch loudspeaker fixing groove is formed in the horizontal center line of the upper cover; the upper cover, the lower cover and the partition plate form an independent cavity, when an audio signal is switched on, the full-frequency loudspeaker is driven by the audio signal, the vibrating membrane vibrates up and down, when the full-frequency loudspeaker vibrates towards the inside of the product, air in the product is compressed into the bass sound guide groove, the damping and the volume are increased continuously, and the compressed air is sprayed out from the sound guide port, so that the strength sense of sound is enhanced, and the bass effect is stronger; the tweeter fixing groove is arranged on the horizontal center line of the upper cover; the high pitch loudspeaker is a single sealing body, can be placed at the middle position of the sound guide sound box as a point sound source, can balance sound, and ensures that signals of any frequency can synchronously reach ears of people.
Furthermore, the bass sound guide groove is composed of a sound guide arc, and the volume of the bass sound guide groove, the arc length of the sound guide arc, the arc radius of the sound guide arc and the area of a sound guide port are matched with the dimensions of the full-frequency loudspeaker and the sound guide sound box; the sound guiding arc structure of the three-section type sound guiding groove is obtained by utilizing a calculation formula derived from the Helmholtz resonator principle, the low sound guiding groove is in a bent shape, the volume of the low sound guiding groove is increased, the bent cavity is favorable for enhancing the damping of air flow, and the air flow is sprayed out from a sound guiding opening through the guide of the sound guiding arc, so that the listening feeling is increased.
Further, the basin frame comprises a basin surface and a groove, the back surface of the centering support sheet is bonded in the groove, and the front surface of the centering support sheet is fixedly connected with the sound basin;
further, a vibration ring is arranged on the centering support piece; the ring that shakes can guarantee that the voice coil loudspeaker voice coil does not touch with the magnetic conduction board, can guarantee simultaneously that the voice coil loudspeaker voice coil only can be along with the up-and-down motion of sound basin, and can not lateral shifting.
Further, a magnetic steel fixing groove is formed in the groove, the magnetic steel is embedded into the magnetic steel fixing groove, the magnet is bonded to the magnetic steel, and the magnetic conducting plate is bonded to the magnet; the magnetic steel provides a carrier for the connection of the magnet and the basin frame, and the magnet is not easy to leak magnetic flux inside the space formed by the magnetic steel, the magnetic conduction plate and the magnetic steel fixing groove, so that the normal service life of the magnet is ensured.
Furthermore, the voice coil is fixed above the cone, and the dustproof cap is adhered to the cone; the dust cap can prevent dust particles from entering the voice coil, and normal operation of the voice coil is guaranteed.
Furthermore, the full loudspeaker fixed slot of frequency runs through the leading sound box, and the size of the full loudspeaker fixed slot of frequency and the size phase-match of the full loudspeaker of frequency are provided with at least one mounting hole on the pelvic surface, fix full loudspeaker of frequency in the full loudspeaker fixed slot of frequency through the mounting hole of screw connection.
Furthermore, the upper cover is provided with an ultrasonic welding concave surface, the periphery of the side surface of the lower cover is provided with an ultrasonic welding convex surface, and the upper cover and the lower cover are welded by ultrasonic welding; the ultrasonic welding concave surface and the ultrasonic welding convex surface enable the upper cover and the lower cover to be better sealed and fixed.
Furthermore, a sealing gasket is arranged in the full-frequency loudspeaker fixing groove, the size of the sealing gasket is matched with that of the full-frequency loudspeaker sealing groove, and the full-frequency loudspeaker is placed on the sealing gasket; the sealing gasket ensures that the full-frequency horn and the full-frequency horn fixing groove are connected more tightly, and prevents dust and liquid from entering.
Due to the adoption of the technical scheme, the invention has the following beneficial effects:
in the invention, the arc-shaped folding ring ensures the axial movement of the cone along the full-frequency loudspeaker, and simultaneously can block the air circulation, the V-shaped structure of the cone increases the vibration area, and the vibration area of the cone can be effectively enlarged on the premise of thinner thickness of the cone, the Helmholtz resonator principle is to establish a closed space formed by ideal steel bodies, the cavity is called as a Helmholtz resonator, a hole with a small area relative to the surface area of the cavity is arranged on the surface of the cavity, the formed structure is called as a Helmholtz resonator, when the air inside the cavity is forcedly compressed by external fluctuation, the air in the pipeline can generate vibrative movement to generate the maximum sound wave action, the circular arc structure of the three-section sound guide groove is obtained by using a calculation formula derived by the Helmholtz resonator principle, the upper cover, the lower cover and the upper cover, The lower cover and the partition plate form an independent cavity, the low-pitch sound guide groove is in a bent shape, and the bent cavity is beneficial to enhancing the damping of air flow, so that the volume of the low-pitch sound guide groove is increased, and the auditory sensation is increased. When the audio signal is switched on, the full-frequency loudspeaker vibrate up and down under the driving of the audio signal, when the product vibrates inside, the air in the product is compressed to the bass sound guide groove, the damping and the volume are continuously increased, the compressed gas is sprayed out from the sound guide opening through the guide of the sound guide arc, the strength of the sound is enhanced, and the bass effect is stronger.
The invention aims to provide a technical scheme of an ultrathin sound box structure aiming at the defects in the prior art, the ultrathin sound box structure is simple in structure and convenient to carry, the special arc-shaped folding ring is designed on the cone of the full-frequency loudspeaker, in addition, the V-shaped structure of the cone is added, the vibration area of the cone is effectively enlarged, the response capability of medium and low frequencies is improved, meanwhile, structural innovation is carried out on the sound guiding sound box, a bass sound guiding groove, an upper cover and a lower cover form an independent cavity inside the sound guiding sound box, the strength of sound is increased through the specific bass sound guiding groove, the bass effect of the full-frequency loudspeaker is stronger, the sound of the whole ultrathin sound box is more balanced by using the full-frequency loudspeaker and the high-frequency loudspeaker in a matched mode, and the same effect as the sound quality of large-volume sound boxes on the market can be achieved.
Drawings
The invention will be further described with reference to the accompanying drawings in which:
FIG. 1 is a schematic structural diagram of an ultra-thin sound box structure according to the present invention;
FIG. 2 is a schematic plane view of a full-band speaker according to the present invention;
FIG. 3 is an exploded view of the full range speaker of the present invention;
FIG. 4 is a cross-sectional view of a full range speaker of the present invention;
FIG. 5 is a schematic front view of the sound leading speaker of the present invention;
FIG. 6 is a schematic structural view of the upper cover of the present invention;
FIG. 7 is a schematic structural view of a lower cover according to the present invention;
FIG. 8 is a schematic view showing the structure of a gasket according to the present invention;
FIG. 9 is a schematic view of the back side of the sound leading speaker of the present invention;
fig. 10 is an enlarged view of the structure at I in fig. 4.
In the figure: 1-a basin stand; 2-a basin surface; 3-magnetic steel fixing groove; 4-a groove; 5-magnetic steel; 6-voice coil; 7-magnet; 8-a magnetic conductive plate; 9-a sound cone; 10-dust cap; 11-centering support piece; 12-a vibration ring; 13-arc folding ring; 14-mounting holes; 15-leading sound box; 16-an upper cover; 17-a lower cover; 18-a seal gasket; 19-full frequency horn fixing groove; 20-tweeter fixing groove; 21-leading sound mouth; 22-full frequency horn; 23-a tweeter; 24-bass sound guide grooves; 25-leading arc; 26-screws; 27-a partition plate; 28-ultrasonic welding of the concave surface; 29-ultrasonic welding of the convex surface.
Detailed Description
As shown in fig. 1 to 10, the ultra-thin sound box structure of the present invention includes a sound guiding sound box 15, a full-range speaker 22 and a tweeter 23, wherein the full-range speaker 22 includes a cone frame 1, a magnetic steel 5, a voice coil 6, a magnet 7, a magnetic guiding plate 8, a cone 9, a dust cap 10 and a centering support 11, the cone 9 is in a V-shaped structure, and the cone 9 is provided with an arc-shaped folded ring 13; the arc-shaped folded ring 13 ensures that the sound basin 9 moves along the axial direction of the loudspeaker, and can block the air circulation, and the V-shaped structure of the sound basin 9 increases the vibration area, so that the vibration area of the sound basin 9 can be effectively enlarged on the premise of the thinner thickness of the sound basin 9. The sound guiding sound box 15 comprises an upper cover 16 and a lower cover 17, a full-range loudspeaker fixing groove 19, a high-range loudspeaker fixing groove 20 and a sound guiding port 21 are arranged on the upper surface of the upper cover 16, and a low sound guiding groove 24 and a partition plate 27 are arranged on the lower surface of the upper cover 16; the tweeter fixing groove 20 is arranged on the horizontal center line of the upper cover 16; the tweeter 23 is a single sealing body, and can be used as a point sound source and placed in the middle of the sound guide sound box 15, so that the sound can be balanced, and signals of any frequency can synchronously reach the ears of a person; an solitary cavity has been constituteed to upper cover 16, lower cover 17 and division board 27, and when switching on audio signal, full loudspeaker 22 is under audio signal's drive, and the vibrating diaphragm vibrates from top to bottom, and when to the inside vibration of product, the air in the product is compressed to bass sound guide groove 24 in, damping and volume constantly increase, and the compressed gas is spouted from sound guide port 21, has strengthened the strength of sound and has felt, makes the bass effect stronger. The low-tone sound guide groove 24 is composed of a sound guide arc 25, and the volume of the low-tone sound guide groove 24, the arc length of the sound guide arc 25, the arc radius of the sound guide arc 25 and the area of the sound guide port 21 are matched with the dimensions of the full-frequency loudspeaker 22 and the sound guide sound box 15; the formula of calculation that utilizes helmholtz resonator principle to deduce obtains the leading tone arc 25 circular arc structure of syllogic leading tone groove, and bass leading tone groove 24 adopts the bending shape, makes the volume increase of bass leading tone groove 24, and the damping of air current is favorable to strengthening to the cavity of bending shape, and the air current is spout from leading tone mouth 21 through the guide of leading tone arc 25, increases the listening sensation. The basin stand 1 comprises a basin surface 2 and a groove 4, the back surface of a centering support sheet 11 is bonded in the groove 4, and the front surface of the centering support sheet 11 is fixedly connected with the sound basin 9; the centering branch piece 11 is provided with a vibration ring 12; the vibrating ring 12 can ensure that the voice coil 6 does not touch the magnetic conduction plate 8, and simultaneously can ensure that the voice coil 6 only moves up and down along with the cone 9 and does not move transversely. A magnetic steel fixing groove 3 is formed in the groove 4, the magnetic steel 5 is embedded into the magnetic steel fixing groove 3, the magnet 7 is bonded to the magnetic steel 5, and the magnetic conduction plate 8 is bonded to the magnet 7; magnet steel 5 provides the carrier for magnet 7 and basin frame 1's connection, and magnet 7 is inside the space of magnet steel 5, magnetic conduction board 8 and magnet steel fixed slot 3's constitution, and the normal life of magnet 7 has been guaranteed to the difficult magnetic leakage. The voice coil 6 is fixed above the cone 9, and the dustproof cap 10 is adhered to the cone 9; the dust cap 10 can prevent dust particles from entering the voice coil 6, and ensure the normal operation of the voice coil 6. Full loudspeaker fixed slot 19 runs through leading sound audio amplifier 15, and full loudspeaker fixed slot 19's size and full loudspeaker 22's size phase-match are provided with at least one mounting hole 14 on the basin face 2, connect mounting hole 14 through screw 26 and fix full loudspeaker 22 in full loudspeaker fixed slot 19. The upper cover 16 is provided with an ultrasonic welding concave surface 28, the periphery of the side surface of the lower cover 17 is provided with an ultrasonic welding convex surface 29, and the upper cover 16 and the lower cover 17 are welded by ultrasonic welding; the concave ultrasonic welding surface 28 and the convex ultrasonic welding surface 29 enable the upper cover 16 and the lower cover 17 to be better sealed and fixed. A sealing gasket 18 is arranged in the full-frequency loudspeaker fixing groove 19, the size of the sealing gasket 18 is matched with that of a sealing groove of a full-frequency loudspeaker 22, and the full-frequency loudspeaker 22 is placed on the sealing gasket 18; the sealing gasket 18 ensures that the full-frequency horn 22 and the full-frequency horn fixing groove 19 are connected more tightly, and prevents dust and liquid from entering.
The bass reflex grooves 24 are designed and calculated as follows:
area S of sound leading port 210The calculation formula is as follows:
S0＝3/20*S1
S1effective vibration area of full-frequency loudspeaker 22 vibration film
3/20 area factor
Measure S1＝25cm2
Thus the area S of the sound leading opening 210＝3/20*25＝3.75cm2≈4cm2
24 volume V of bass sound guide grooveOThe calculation formula is as follows:
V0＝3/20*V1
V1＝a1*b1*h1
V1volume of loudspeaker box
3/20-volume factor
a1、b1、h1Length, width and height of loudspeaker box
Calculating V according to the formula1＝25.4*16.4*1.1＝458.2cm3
Therefore, the volume V of the bass sound guide groove 240＝3/20*458.2≈70cm3
L0＝V0/S0
thus arc length L0＝70/4＝17.5cm
The calculation formula of the arc radius R of the sound guiding arc 25 is as follows:
R＝(180*L1)/(N*Π)
L1＝L0/M
L1length of arc
M-coefficient of arc segment, take 3
N-central angle, taking right angle 90 degrees
Pi-circumference ratio
Calculating L according to the formula1＝17.5/3＝5.8cm
The radius R is therefore (180 × 5.8)/(90 × 3.14) ≈ 3.69426752 ≈ 3.7cm
The circular arc of the sound guiding arc 25 of the three-stage bass sound guiding groove 24 is designed according to the calculated radius.
Due to the adoption of the technical scheme, the invention has the following beneficial effects:
in the invention, the arc-shaped folding ring 13 ensures the axial movement of the cone 9 along the full-frequency loudspeaker 22 and simultaneously can block the air circulation, and the V-shaped structure of the cone 9 increases the vibration area, so that the vibration area of the cone 9 can be effectively enlarged on the premise of thinner thickness of the cone 9, the Helmholtz resonator principle is to establish a closed space formed by an ideal rigid body, the cavity is called as a Helmholtz resonator, a hole with a small area relative to the surface area of the cavity is formed on the surface of the cavity, the formed structure is called as a Helmholtz resonator, when the internal air is subjected to the forced compression of external fluctuation, the air in the pipeline can generate the vibratory movement, the maximum sound wave action is generated, and the circular arc structure of the three-section type sound guide groove is obtained by using the calculation formula derived by the Helmholtz resonator principle, the upper cover 16, the lower cover 17 and the partition plate 27 form an independent cavity, the low-pitch sound guide groove 24 is in a bent shape, and the bent cavity is beneficial to enhancing the damping of air flow, so that the volume of the low-pitch sound guide groove 24 is increased, and the hearing feeling is increased. When the switch-on audio signal, full loudspeaker 22 vibrates from top to bottom under the drive of audio signal, the vibrating diaphragm, and when vibrating to product inside, the air in the product is compressed to bass sound guide groove 24 in, damping and volume constantly increase, and the compressed gas spouts from sound guide port 21 through the guide of leading sound arc 25, has strengthened the strength of sound and has felt, makes the bass effect stronger.
The invention aims to provide a technical scheme of an ultrathin sound box structure aiming at the defects in the prior art, the ultrathin sound box structure is simple in structure and convenient to carry, the special arc-shaped folding ring 13 is designed on the sound basin 9 of the full-frequency loudspeaker 22, and in addition, the V-shaped structure of the sound basin 9 effectively enlarges the vibration area of the sound basin 9, improves the response capability of medium and low frequencies, meanwhile, the sound guiding sound box 15 is structurally innovated, a low sound guiding groove 24, an upper cover 16 and a lower cover 17 form an independent cavity in the sound guiding sound box 15, the strength sense of sound is increased through the specific low sound guiding groove 24, the low sound effect of the full-frequency loudspeaker 22 is stronger, the sound of the whole ultrathin sound box is more balanced by using the full-frequency loudspeaker 22 and the high-pitch loudspeaker 23 in a matched mode, and the same effect as the sound quality of a large-volume sound box on the market can be achieved.
The above is only a specific embodiment of the present invention, but the technical features of the present invention are not limited thereto. Any simple variations, equivalent substitutions or modifications based on the present invention to achieve substantially the same technical effects are within the scope of the present invention.
Claims (6)
1. The utility model provides an ultra-thin audio amplifier structure, includes leading sound audio amplifier, full loudspeaker and high pitch loudspeaker, full loudspeaker include basin frame, magnet steel, voice coil loudspeaker voice coil, magnet, magnetic conductive plate, sound basin, dustproof cap and centering support piece, its characterized in that: the sound basin is of a V-shaped structure, an arc-shaped folding ring is arranged on the sound basin, the sound guiding sound box comprises an upper cover and a lower cover, a full-frequency loudspeaker fixing groove, a high-pitch loudspeaker fixing groove and a sound guiding opening are formed in the upper surface of the upper cover, a low-pitch sound guiding groove and a partition plate are arranged on the lower surface of the upper cover, the high-pitch loudspeaker fixing groove is formed in the horizontal center line of the upper cover, a vibration ring is arranged on the centering support, the low-pitch sound guiding groove is formed by a sound guiding arc, the low-pitch sound guiding groove is in a bent shape, the sound guiding groove is a three-section sound guiding groove, two ends of the three-section sound guiding groove are linear, the middle of the three-section sound guiding groove is arc-shaped, the volume of the low-pitch sound guiding groove, the arc length of the sound guiding arc, the arc radius of the sound guiding arc and the area of the sound guiding opening are matched with the sizes of the full, the size of sealed pad with the size phase-match of full frequency loudspeaker seal groove, full frequency loudspeaker are placed on the seal pad.
2. The ultra-thin sound box structure of claim 1, wherein: the basin frame comprises a basin surface and a groove, the reverse side of the centering support sheet is bonded in the groove, and the front side of the centering support sheet is fixedly connected with the sound basin.
3. The ultra-thin sound box structure of claim 2, wherein: a magnetic steel fixing groove is formed in the groove, the magnetic steel is embedded into the magnetic steel fixing groove, the magnet is bonded to the magnetic steel, and the magnetic conduction plate is bonded to the magnet.
4. The ultra-thin sound box structure of claim 1, wherein: the voice coil is fixed above the cone, and the dustproof cap is bonded on the cone.
5. The ultra-thin sound box structure of claim 2, wherein: the full-frequency loudspeaker fixing groove runs through the sound conduction sound box, the size of the full-frequency loudspeaker fixing groove is matched with the size of the full-frequency loudspeaker, at least one mounting hole is formed in the basin surface, the mounting hole is connected with the screw, and the full-frequency loudspeaker is fixed in the full-frequency loudspeaker fixing groove.
6. The ultra-thin sound box structure of claim 1, wherein: the upper cover is provided with ultrasonic fusion concave surface, the side of lower cover is provided with ultrasonic fusion convex surface all around, the upper cover with the lower cover adopts ultrasonic fusion welding.
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| US10863268B1 (en) * | 2019-09-13 | 2020-12-08 | Facebook Technologies, Llc | Display device with peripherally surrounding audio trench and acoustic port |
| CN110650389A (en) * | 2019-09-29 | 2020-01-03 | 歌尔股份有限公司 | Sound production device and audio playing equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204929252U (en) * | 2015-09-10 | 2015-12-30 | 苏州声威电声股份有限公司 | Selvedge cone loudspeaker suitable for slim audio amplifier |
| CN206294330U (en) * | 2017-01-09 | 2017-06-30 | 珠海乐港科技有限公司 | A kind of integrated high-power bar-shaped acoustic device |
| CN107087244A (en) * | 2017-06-14 | 2017-08-22 | 无锡杰夫电声股份有限公司 | A kind of thin speaker audio amplifier |
| CN207184785U (en) * | 2017-09-29 | 2018-04-03 | 深圳市美妙之音科技有限公司 | Low frequency expands audio amplifier |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8433091B2 (en) * | 2011-01-03 | 2013-04-30 | Abatech Electronics Co., Ltd. | Ultra-thin loudspeaker structure |
| CN104113799B (en) * | 2014-07-25 | 2018-08-17 | 无锡杰夫电声股份有限公司 | Multipoint excitation source speaker with radiator structure |
-
2018
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204929252U (en) * | 2015-09-10 | 2015-12-30 | 苏州声威电声股份有限公司 | Selvedge cone loudspeaker suitable for slim audio amplifier |
| CN206294330U (en) * | 2017-01-09 | 2017-06-30 | 珠海乐港科技有限公司 | A kind of integrated high-power bar-shaped acoustic device |
| CN107087244A (en) * | 2017-06-14 | 2017-08-22 | 无锡杰夫电声股份有限公司 | A kind of thin speaker audio amplifier |
| CN207184785U (en) * | 2017-09-29 | 2018-04-03 | 深圳市美妙之音科技有限公司 | Low frequency expands audio amplifier |
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Effective date of registration: 20230414 Address after: Room 1006, Building 1, Xicheng Bosi, No. 158 Zixuan Road, Sandun, Xihu District, Hangzhou City, Zhejiang Province, 310000 Patentee after: Liu Fang Address before: Room 62, No. 199 Wensan Road, Xihu District, Hangzhou City, Zhejiang Province, 310000 Patentee before: Xiang Xiaofeng |
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