CN107509142B - Multifunctional loudspeaker - Google Patents
Multifunctional loudspeaker Download PDFInfo
- Publication number
- CN107509142B CN107509142B CN201710890968.XA CN201710890968A CN107509142B CN 107509142 B CN107509142 B CN 107509142B CN 201710890968 A CN201710890968 A CN 201710890968A CN 107509142 B CN107509142 B CN 107509142B
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- Prior art keywords
- magnetic
- voice coil
- cone
- dust cover
- iron
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 65
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 44
- 239000010959 steel Substances 0.000 claims abstract description 44
- 239000000428 dust Substances 0.000 claims abstract description 36
- 229910052742 iron Inorganic materials 0.000 claims abstract description 32
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 30
- 229910052802 copper Inorganic materials 0.000 claims abstract description 27
- 239000010949 copper Substances 0.000 claims abstract description 27
- QJVKUMXDEUEQLH-UHFFFAOYSA-N [B].[Fe].[Nd] Chemical compound [B].[Fe].[Nd] QJVKUMXDEUEQLH-UHFFFAOYSA-N 0.000 claims description 8
- 229910001172 neodymium magnet Inorganic materials 0.000 claims description 8
- 229910000859 α-Fe Inorganic materials 0.000 claims description 7
- 230000000694 effects Effects 0.000 abstract description 7
- 230000000087 stabilizing effect Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 description 5
- 239000012528 membrane Substances 0.000 description 4
- 230000002035 prolonged effect Effects 0.000 description 4
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000739 chaotic effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005520 electrodynamics Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000005236 sound signal Effects 0.000 description 1
Classifications
-
- 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
-
- 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
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
The invention discloses a multifunctional loudspeaker, which comprises T iron, magnetic steel, an upper magnetic conduction plate, a basin frame, a cone, a centering support piece, a voice coil framework, a voice coil and an outer dust cover, wherein the T iron, the magnetic steel, the upper magnetic conduction plate, the basin frame, the cone, the centering support piece, the voice coil framework, the voice coil and the outer dust cover form a basic structure of the loudspeaker, the multifunctional loudspeaker also comprises a magnetic column, a copper coil, a magnetic sleeve and an inner dust cover, a plurality of column holes are formed in the T iron column, the magnetic column is arranged in each column hole, the copper coil is wrapped around the periphery of the magnetic steel, the magnetic sleeve is arranged on the periphery of the copper coil, and the inner dust cover is arranged at an upper port of the voice coil framework. The invention has the effects of improving magnetic performance, prolonging the service life of the voice coil, stabilizing the cone structure, improving the toughness of the cone, prolonging the quality and service life of the cone, reducing noise, prolonging the service life of the dust cover, adjusting the intensity of the heavy bass loudspeaker and preventing high-frequency signals from damaging the heavy bass loudspeaker.
Description
[ field of technology ]
The invention relates to the technical field of speakers, in particular to a multifunctional speaker.
[ background Art ]
The loudspeaker is also called a loudspeaker, which is a very common electroacoustic transducer and can be seen in sounding electronic and electric equipment. Speakers are of many kinds, but the basic principle of operation is similar, and are elements that convert an electrical signal into a sound signal for playback. Currently, the most widely used is an electrodynamic loudspeaker, which is composed of a diaphragm, a voice coil, a permanent magnet, a bracket, and the like. When the voice coil of the loudspeaker is electrified with audio current, the voice coil generates an alternating magnetic field under the action of the current, and the permanent magnet also generates a constant magnetic field with constant magnitude and direction. The magnitude and direction of the magnetic field generated by the voice coil are continuously changed along with the change of the audio current, so that the interaction of the two magnetic fields enables the voice coil to move perpendicular to the current direction in the voice coil, and the voice coil is connected with the vibrating membrane so as to drive the vibrating membrane to vibrate, and the vibrating membrane vibrates to cause the vibration of air to generate sound. The larger the current input to the voice coil, the larger the acting force of the magnetic field, the larger the amplitude of vibration of the vibrating membrane, and the louder the sound.
In use, the ferrite magnetic steel is adopted as the permanent magnet, so that the performance of the loudspeaker can not be improved well, but the cost of using the neodymium iron boron magnetic steel as the permanent magnet is too high, and the voice coil can cause the magnetic loop to be in chaotic touch with the T-shaped iron shaft wall in the high-temperature and high-speed up-down operation, so that the voice coil is damaged, and the service life of the voice coil is shorter; for the super-bass loudspeaker, in the super-bass working state, because high-strength up-and-down motion causes air to be compressed and not discharged from the bottom, the super-bass loudspeaker directly impacts the dust cover, causes protruding noise, and also causes damage to the dust cover, and because the high-strength vibration of the cone causes confusion and collision to form noise or damage, the quality and the service life of the loudspeaker are affected; in addition, the existing subwoofer can only play full-frequency music, does not have the adjusting function of the intensity of the subwoofer, and is extremely easy to cause damage to the subwoofer by high-frequency signals. In order to solve the above problems, it is necessary to propose a multifunctional speaker.
[ invention ]
The invention aims to overcome the defects of the prior art and provide a multifunctional loudspeaker, which aims to solve the technical problems that ferrite magnetic steel in the prior art cannot well improve the performance of the loudspeaker, a dust cover is easy to damage, the quality is low and the adjusting function of heavy bass intensity is not provided.
In order to achieve the above purpose, the invention provides a multifunctional loudspeaker, which comprises T iron, magnetic steel, an upper magnetic conduction plate, a basin frame, a cone, a centering support piece, a voice coil framework, a voice coil and an outer dust cover, wherein the T iron, the magnetic steel, the upper magnetic conduction plate, the basin frame, the cone, the centering support piece, the voice coil framework, the voice coil and the outer dust cover form a basic structure of the loudspeaker, the multifunctional loudspeaker further comprises a magnetic column, a copper coil, a magnetic sleeve and an inner dust cover, a plurality of cylindrical holes are formed in the T iron column, the magnetic column is arranged in each cylindrical hole, the copper coil is wrapped around the periphery of the magnetic steel, the magnetic sleeve is arranged on the periphery of the copper coil, and the inner dust cover is arranged at an upper port of the voice coil framework.
Preferably, the magnetic steel is sleeved on the T-shaped iron column, an upper magnetic conduction plate is fixed at the upper end of the magnetic steel, the lower end of the magnetic steel is positioned on the T-shaped iron lower magnetic conduction plate, an annular magnetic gap is formed between the magnetic steel and the upper magnetic conduction plate and the T-shaped iron column, the voice coil framework is arranged in the annular magnetic gap, the upper end of the voice coil framework provided with the voice coil penetrates through the center Kong Zhongding core of the centering support piece to limit, the centering support piece is arranged in the basin frame, the basin frame is fixed on the upper magnetic conduction plate, the basin is arranged in the basin frame, and the outer dust cover is arranged on the basin frame.
Preferably, the cone-shaped cone is arranged on the cone, the lower end of the cone is connected with the centering support piece, the upper end of the voice coil framework is located in the inner cavity of the cone, the upper port of the cone is of a double-layer hanging edge structure and is composed of an upper arc-shaped ring and a lower waveform ring, the outer edges of the upper arc-shaped ring and the lower waveform ring are connected into an integrated horizontal ring, a cone-shaped annular gap is formed between the inner edges, the horizontal ring is embedded in the upper port of the cone frame and is clamped and fixed through a fixing buckle, and the upper edge of the cone-shaped annular gap is clamped and fixed.
Preferably, the plurality of cylindrical holes are uniformly distributed at equal intervals by taking the axis of the T-shaped iron cylinder as the center, and the magnetic columns are neodymium iron boron magnetic columns.
Preferably, the copper coil is formed by spirally winding copper wires along the periphery of the magnetic steel, two ends of the copper coil respectively form a closed loop with a power supply through a lead after penetrating through the magnetic sleeve, and the closed loop is also connected with an adjusting rheostat in series.
Preferably, the outer dust cover is in a convex spherical crown structure, the inner dust cover is positioned below the outer dust cover, and a plurality of small holes are uniformly distributed on the inner dust cover.
Preferably, the T-shaped iron column is of a hollow structure.
Preferably, the magnetic steel adopts ferrite magnetic steel.
The invention has the beneficial effects that: compared with the prior art, the multifunctional loudspeaker provided by the invention has the advantages of reasonable structure and following advantages:
(1) by arranging the neodymium iron boron magnetic column on the column body, the structure is made into a double magnetic circuit structure, the problems that the performance cannot be improved well by adopting ferrite magnetic steel at present and the cost of adopting neodymium iron boron magnetic steel is too high are solved, the magnetic performance can be improved, the loudspeaker parameters can be improved, the voice coil can be ensured to always maintain a suspended state in high-speed operation without contacting with a T-shaped iron shaft wall, and the service life of the voice coil is greatly prolonged;
(2) the suspended edge with the double-layer structure is beneficial to stabilizing the cone structure, improving the toughness of the cone, and the subwoofer can not cause confusion and collision to form noise or damage even if in high-intensity vibration when in subwoofer work, thereby being beneficial to prolonging the quality and the service life of the cone;
(3) the double-layer dustproof effect is achieved through the inner dustproof cover and the outer dustproof cover, the inner dustproof cover is provided with a plurality of small holes, air compression caused by high-strength up-and-down movement can be timely discharged from the small holes, noise is reduced, and the service life of the upper dustproof cover is effectively prolonged;
(4) the copper wire is spirally wound along the periphery of the magnetic steel to form a copper coil, the copper coil has the effect of inductance, and the adjusting rheostat is arranged, so that the current in the copper coil can be changed by adjusting the rheostat, the magnetic induction intensity is changed, the effect of adjusting the heavy bass intensity of the heavy bass loudspeaker is achieved, and the high-frequency signal is prevented from damaging the heavy bass loudspeaker.
The features and advantages of the present invention will be described in detail by way of example with reference to the accompanying drawings.
[ description of the drawings ]
Fig. 1 is a schematic structural diagram of a multifunctional speaker according to an embodiment of the present invention;
FIG. 2 is a top view of the T-iron, magnetic steel and upper magnetically permeable plate of an embodiment of the present invention;
fig. 3 is a top view of an inner dust cap of an embodiment of this invention.
In the figure:
1: t iron, 1-1: column, 1-2: cylindrical hole, 1-3: lower magnetic conduction board, 2: magnetic steel, 3: upper magnetic conduction plate, 4: basin stand, 5: cone, 5-1: upper arc ring, 5-2: lower wave ring, 5-3: basin main part, 5-4: horizontal ring, 5-5: conical annular gap, 6: centering support piece, 7: voice coil skeleton, 8: voice coil, 9: outer dust cover, 10: annular magnetic gap, 11: magnetic column, 12: copper coil, 13: magnetic sleeve, 14: inner dust cover, 14-1: small holes, 15: fixing snap ring, 16: wire, 17: power supply, 18: and adjusting the rheostat.
[ detailed description ] of the invention
The present invention will be further described in detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the detailed description and specific examples, while indicating the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention. In addition, in the following description, descriptions of well-known structures and techniques are omitted so as not to unnecessarily obscure the present invention.
Referring to fig. 1 and 2, the embodiment of the invention provides a multifunctional loudspeaker, which comprises a T iron 1, magnetic steel 2, an upper magnetic conduction plate 3, a basin frame 4, a cone 5, a centering support plate 6, a voice coil framework 7, a voice coil 8 and an outer dust cover 9, wherein the T iron 1, the magnetic steel 2, the upper magnetic conduction plate 3, the basin frame 4, the cone 5, the centering support plate 6, the voice coil framework 7, the voice coil 8 and the outer dust cover 9 form a basic structure of the loudspeaker, the multifunctional loudspeaker further comprises a magnetic column 11, a copper coil 12, a magnetic sleeve 13 and an inner dust cover 14, a plurality of cylindrical holes 1-2 are formed in a cylinder 1-1 of the T iron 1, the magnetic column 11 is arranged in each cylindrical hole 1-2, the copper coil 12 is wrapped on the periphery of the magnetic steel 2, the magnetic sleeve 13 is arranged on the periphery of the copper coil 12, and the inner dust cover 14 is arranged on an upper port of the voice coil framework 7.
The magnetic steel 2 is sleeved on the column 1-1 of the T iron 1, an upper magnetic conduction plate 3 is fixed at the upper end of the magnetic steel 2, the lower end of the magnetic steel 2 is located on the lower magnetic conduction plate 1-3 of the T iron 1, an annular magnetic gap 10 is formed between the magnetic steel 2 and the upper magnetic conduction plate 3 and the column 1-1 of the T iron 1, the voice coil framework 7 is placed in the annular magnetic gap 10, the upper end of the voice coil framework 7 provided with the voice coil 8 penetrates through the center Kong Zhongding core of the centering support piece 6 to limit, the centering support piece 6 is installed in the basin frame 4, the basin frame 4 is fixed on the upper magnetic conduction plate 3, the basin 5 is installed in the basin frame 4, and the outer dust cover 9 is installed on the basin 5.
Further, the cone-shaped cone 5 is arranged, the lower end of the cone-shaped cone 5 is connected with the centering support piece 6, the upper end of the voice coil framework 7 is positioned in the inner cavity of the cone-shaped cone 5, the upper port of the cone 5 adopts a double-layer hanging edge structure and consists of an upper arc-shaped ring 5-1 and a lower wave-shaped ring 5-2, the outer edges of the upper arc-shaped ring 5-1 and the lower wave-shaped ring 5-2 are connected into a whole to form a horizontal ring 5-4, a conical annular gap 5-5 is formed between the inner edges, the horizontal ring 5-4 is embedded in the upper port of the basin frame 4 and is clamped and fixed through a fixing buckle 15, and the upper end edge of the basin body 5-3 is clamped and fixed in the conical annular gap 5-5.
Further, the column 1-1 of the T iron 1 is of a hollow structure, the column holes 1-2 are uniformly distributed at equal intervals by taking the axis of the column 1-1 of the T iron 1 as the center, the magnetic column 11 is a neodymium iron boron magnetic column, and the magnetic steel 2 is ferrite magnetic steel.
Further, the copper coil 12 is formed by spirally winding copper wires along the periphery of the magnetic steel 2, two ends of the copper coil 12 respectively form a closed loop with a power supply 17 through a lead 16 after passing through the magnetic sleeve 13, and the closed loop is also connected with an adjusting rheostat 18 in series.
Furthermore, the outer dust cover 9 is in a convex spherical crown structure, the inner dust cover 14 is positioned below the outer dust cover 9, and a plurality of small holes 14-1 are uniformly distributed on the inner dust cover 14.
The multifunctional loudspeaker has the following advantages:
(1) by arranging the neodymium iron boron magnetic column on the column body 1-1, the structure is made into a double magnetic circuit structure, the problems that the performance cannot be improved well by adopting ferrite magnetic steel at present and the cost of adopting neodymium iron boron magnetic steel is too high are solved, the magnetic performance can be improved, the loudspeaker parameters can be improved, the voice coil 8 can be ensured to always maintain a suspended state in high-speed operation without contacting with the T-shaped iron shaft wall, and the service life of the voice coil is greatly prolonged;
(2) the adoption of the suspended edge with the double-layer structure is beneficial to stabilizing the cone structure, improving the toughness of the cone, and the super-bass loudspeaker can not cause confusion and collision to form noise or damage even if in high-intensity vibration when working at super-bass, thereby being beneficial to prolonging the quality and the service life of the cone 5;
(3) the double-layer dustproof effect is achieved through the inner dustproof cover 14 and the outer dustproof cover 9, the inner dustproof cover 14 is provided with a plurality of small holes, air compression caused by high-strength up-and-down motion can be timely discharged from the small holes, noise is reduced, and the service life of the upper dustproof cover is effectively prolonged;
(4) the copper wire is spirally wound along the periphery of the magnetic steel 2 to form the copper coil 12, so that the copper coil has the effect of inductance, and the adjusting rheostat 18 is arranged, so that the current in the copper coil can be changed by adjusting the rheostat 18, the magnetic induction intensity is changed, the effect of adjusting the heavy bass intensity of the heavy bass loudspeaker is achieved, and the high-frequency signal is prevented from damaging the heavy bass loudspeaker.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, or alternatives falling within the spirit and principles of the invention.
Claims (4)
1. The utility model provides a multifunctional loudspeaker, includes T iron (1), magnet steel (2), goes up magnetic conduction board (3), basin frame (4), cone (5), centering piece (6), voice coil skeleton (7), voice coil loudspeaker voice coil (8) and outer dust cover (9), T iron (1), magnet steel (2), go up magnetic conduction board (3), basin frame (4), cone (5), centering piece (6), voice coil skeleton (7), voice coil loudspeaker voice coil (8) and outer dust cover (9) constitute the basic structure of speaker, its characterized in that: the voice coil motor further comprises a magnetic column (11), a copper coil (12), a magnetic sleeve (13) and an inner dustproof cover (14), wherein a plurality of cylindrical holes (1-2) are formed in the cylindrical body (1-1) of the T-shaped iron (1), the magnetic column (11) is installed in each cylindrical hole (1-2), the copper coil (12) is wrapped around the periphery of the magnetic steel (2), the magnetic sleeve (13) is installed on the periphery of the copper coil (12), the inner dustproof cover (14) is installed on the upper port of the voice coil framework (7), the magnetic steel (2) is sleeved on the cylindrical body (1-1) of the T-shaped iron (1), an upper magnetic conducting plate (3) is fixed at the upper end of the magnetic steel (2), the lower end of the magnetic steel (2) is located on the lower magnetic conducting plate (1-3) of the T-shaped iron (1), an annular gap (10) is formed between the magnetic steel (2) and the upper magnetic conducting plate (3) and the cylindrical body (1-1) of the T-shaped iron (1), the voice coil framework (7) is installed on the voice coil framework (7), the voice coil framework (6) is installed on the voice coil framework (6) in a centering piece (6), the centering piece (6) is installed on the centering piece (6), basin frame (4) fix on last magnetic conduction board (3), basin (5) install in basin frame (4), outer dust cover (9) install on basin (5), copper coil (12) adopt the copper wire to encircle along magnet steel (2) periphery spiral and form, copper coil (12) both ends all pass behind magnetic sleeve (13) respectively through wire (16) and power (17) and constitute a closed circuit, closed circuit on still concatenate an adjusting rheostat (18), outer dust cover (9) be the spherical crown shape structure of evagination, interior dust cover (14) be located the below of outer dust cover (9), interior dust cover (14) on evenly distributed have a plurality of apertures (14-1), cylinder (1-1) of T iron (1) be hollow structure.
2. A multi-function speaker as defined in claim 1, wherein: the cone-shaped the cone-shaped sound comprises the cone body, the lower end of and the upper end of the voice coil framework (7) is positioned in the inner cavity of the cone (5), the upper port of the cone (5) adopts a double-layer hanging edge structure and consists of an upper arc-shaped ring (5-1) and a lower wave-shaped ring (5-2), the upper arc ring (5-1) and the lower wave ring (5-2) are connected into an integrated horizontal ring (5-4), a conical annular gap (5-5) is formed between the inner edges, the horizontal ring (5-4) is embedded in the upper port of the basin frame (4) and is clamped and fixed through a fixing buckle ring (15), and the upper end edge of the basin body (5-3) is clamped and fixed in the conical annular gap (5-5).
3. A multi-function speaker as defined in claim 1, wherein: the cylindrical holes (1-2) are uniformly distributed at equal intervals by taking the axis of the cylinder (1-1) of the T iron (1) as the center, and the magnetic columns (11) are neodymium iron boron magnetic columns.
4. A multi-function speaker as defined in claim 1, wherein: the magnetic steel (2) adopts ferrite magnetic steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710890968.XA CN107509142B (en) | 2017-09-27 | 2017-09-27 | Multifunctional loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710890968.XA CN107509142B (en) | 2017-09-27 | 2017-09-27 | Multifunctional loudspeaker |
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| Publication Number | Publication Date |
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| CN107509142A CN107509142A (en) | 2017-12-22 |
| CN107509142B true CN107509142B (en) | 2024-04-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710890968.XA Active CN107509142B (en) | 2017-09-27 | 2017-09-27 | Multifunctional loudspeaker |
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| CN (1) | CN107509142B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110662142A (en) * | 2019-09-29 | 2020-01-07 | 惠州市杰德创新科技有限公司 | Method for adjusting loudness of loudspeaker and loudspeaker |
| CN110769350A (en) * | 2019-09-29 | 2020-02-07 | 惠州市杰德创新科技有限公司 | Method for adjusting loudness of loudspeaker and loudspeaker |
| CN111586541B (en) * | 2020-05-19 | 2021-06-22 | 嵊州美亚电子有限公司 | Loudspeaker T iron with backflow cavity |
| CN113810824B (en) * | 2021-10-27 | 2023-04-28 | 安徽井利电子有限公司 | High sensitivity speaker for improving medium and high frequency |
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| CN2387687Y (en) * | 1999-03-16 | 2000-07-12 | 刘建国 | Ball top high pitch horn coaxial all-band loudspeaker |
| CN202043277U (en) * | 2010-09-17 | 2011-11-16 | 富祐鸿科技股份有限公司 | Elastic wave upward moving structure of loudspeaker |
| JP2013115678A (en) * | 2011-11-30 | 2013-06-10 | Foster Electric Co Ltd | Magnetic circuit for micro speaker |
| CN105072543A (en) * | 2015-07-20 | 2015-11-18 | 朝阳聚声泰（信丰）科技有限公司 | Antistatic dustproof cell phone horn |
| CN205610920U (en) * | 2016-02-29 | 2016-09-28 | 歌尔股份有限公司 | Moving -coil speaker structure and audio playback device |
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2017
- 2017-09-27 CN CN201710890968.XA patent/CN107509142B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2387687Y (en) * | 1999-03-16 | 2000-07-12 | 刘建国 | Ball top high pitch horn coaxial all-band loudspeaker |
| CN202043277U (en) * | 2010-09-17 | 2011-11-16 | 富祐鸿科技股份有限公司 | Elastic wave upward moving structure of loudspeaker |
| JP2013115678A (en) * | 2011-11-30 | 2013-06-10 | Foster Electric Co Ltd | Magnetic circuit for micro speaker |
| CN105072543A (en) * | 2015-07-20 | 2015-11-18 | 朝阳聚声泰（信丰）科技有限公司 | Antistatic dustproof cell phone horn |
| CN205610920U (en) * | 2016-02-29 | 2016-09-28 | 歌尔股份有限公司 | Moving -coil speaker structure and audio playback device |
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| CN107509142A (en) | 2017-12-22 |
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