CN111328000A - Double-voice-coil complementary driving type loudspeaker - Google Patents
Double-voice-coil complementary driving type loudspeaker Download PDFInfo
- Publication number
- CN111328000A CN111328000A CN202010302861.0A CN202010302861A CN111328000A CN 111328000 A CN111328000 A CN 111328000A CN 202010302861 A CN202010302861 A CN 202010302861A CN 111328000 A CN111328000 A CN 111328000A
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- China
- Prior art keywords
- magnetic
- voice coil
- heat dissipation
- support frame
- fixed support
- Prior art date
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- 230000000295 complement effect Effects 0.000 title claims abstract description 33
- 230000017525 heat dissipation Effects 0.000 claims abstract description 43
- 230000009977 dual effect Effects 0.000 claims description 9
- 238000001816 cooling Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- 230000008901 benefit Effects 0.000 abstract description 5
- 230000004907 flux Effects 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 238000010276 construction Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 4
- 239000000428 dust Substances 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 230000002195 synergetic effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
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
- H04R9/02—Details
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
- H04R9/022—Cooling arrangements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
- H04R9/025—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
- H04R9/06—Loudspeakers
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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
The invention relates to the technical field of speakers, in particular to a double-voice-coil complementary driving type speaker. The double-voice-coil complementary driving type loudspeaker also comprises radiating fins which are annularly arranged on the outer side of the fixed support frame; the middle part of the central magnetic conduction column is provided with an exhaust heat dissipation hole, and the fixed support frame is provided with a middle heat dissipation hole and a side heat dissipation hole; the middle radiating hole is communicated with the exhaust radiating hole, and the side radiating holes are communicated with the magnetic gap; therefore, the double-voice-coil complementary driving type loudspeaker is good in heat dissipation performance and better in stability, and the service life of the loudspeaker is further prolonged. In addition, because the central magnetic conduction column is arranged to be an I-shaped central magnetic conduction column, magnetic flux leakage of a magnetic circuit is less, and a symmetrical magnetic field can be generated. In addition, because the fixed support frame sets up the fixed support frame of integral type, it is faster to have a heat conduction, and fixed effectual, sound construction's advantage, and it is more convenient to assemble.
Description
Technical Field
The invention relates to the technical field of speakers, in particular to a double-voice-coil complementary driving type speaker.
Background
The loudspeaker is also called a loudspeaker, which is a transducer for converting an electric signal into an acoustic signal, and the quality of the loudspeaker has a great influence on the sound quality. The loudspeaker is the weakest component in the audio equipment, and is the most important component for the audio effect.
The loudspeaker generates heat in the using process, and the loudspeaker in the prior art has the defect of poor heat dissipation performance in the aspect of structural arrangement. In addition, the loudspeaker in the prior art also has magnetic leakage phenomenon in the aspect of the arrangement of the magnetic circuit structure, so that the utilization rate of magnetism is not high.
Disclosure of Invention
Aiming at the technical problems in the prior art, the invention provides the double-voice-coil complementary driving type loudspeaker which has the advantage of good heat dissipation performance, can reduce magnetic leakage and has higher magnetic utilization rate.
In order to achieve the purpose, the invention provides the following technical scheme:
the double-voice-coil complementary driving type loudspeaker comprises an annular upper magnetic conducting plate, an annular lower magnetic conducting plate, an annular magnet arranged between the upper magnetic conducting plate and the lower magnetic conducting plate, a central magnetic conducting column arranged in inner holes of the upper magnetic conducting plate and the lower magnetic conducting plate, a magnetic gap formed by the upper magnetic conducting plate and the lower magnetic conducting plate and the central magnetic conducting column respectively, a double-voice-coil assembly arranged in the magnetic gap, a fixed supporting frame used for supporting the lower magnetic conducting plate and the central magnetic conducting column, a basin frame arranged above the upper magnetic conducting plate, a paper basin arranged in the basin frame and an elastic wave supporting sheet connected with the basin frame and the paper basin;
the cooling fin is annularly arranged on the outer side of the fixed support frame;
the middle part of the central magnetic conduction column is provided with an exhaust heat dissipation hole, and the central magnetic conduction column is arranged to be an I-shaped central magnetic conduction column;
the fixed support frame is an integrated fixed support frame and is provided with a middle radiating hole and a side radiating hole; the middle radiating hole is communicated with the exhaust radiating hole, and the side radiating hole is communicated with the magnetic gap.
Specifically, the double-voice-coil complementary driving type loudspeaker further comprises a dust screen arranged on the middle heat dissipation hole.
Specifically, the double-voice-coil assembly comprises an upper voice coil wound in a magnetic gap formed by the upper magnetic conductive plate and the central magnetic conductive column, and a lower voice coil wound in a magnetic gap formed by the lower magnetic conductive plate and the central magnetic conductive column.
Specifically, the upper voice coil and the lower voice coil are wound in opposite directions to form a complementary driving magnetic circuit system.
Specifically, the upper voice coil and the lower voice coil are wound in the same direction and are reversely connected to form a complementary driving magnetic circuit system.
Specifically, the side heat dissipation holes include a first heat dissipation hole extending from the top of the fixing support frame to the middle thereof, and a second heat dissipation hole extending from the first heat dissipation hole to the side of the fixing support frame.
The invention has the beneficial effects that:
(1) the double-voice-coil complementary driving type loudspeaker further comprises radiating fins which are annularly arranged on the outer side of the fixed support frame; the middle part of the central magnetic conduction column is provided with an exhaust heat dissipation hole, and the fixed support frame is provided with a middle heat dissipation hole and a side heat dissipation hole; the middle radiating hole is communicated with the exhaust radiating hole, and the side radiating holes are communicated with the magnetic gap; therefore, through the synergistic effect of the radiating fins, the exhaust radiating holes, the middle radiating holes and the side radiating holes, the radiating performance of the double-voice-coil complementary drive type loudspeaker is good, the stability of the loudspeaker is better, and the service life of the loudspeaker is further prolonged.
(2) According to the double-voice-coil complementary driving type loudspeaker, the central magnetic conduction column is arranged to be the I-shaped central magnetic conduction column, magnetic flux leakage of a magnetic circuit is less, and a symmetrical magnetic field can be generated.
(3) According to the double-voice-coil complementary driving type loudspeaker, the fixing support frame is arranged to be the integrated fixing support frame, so that on one hand, heat conduction is faster, the heat dissipation performance of the loudspeaker is further improved, on the other hand, the integrated fixing support frame can simultaneously support and fix the lower magnetic conduction plate and the central magnetic conduction column, and the double-voice-coil complementary driving type loudspeaker has the advantages of being good in fixing effect, firm in structure and more convenient to assemble.
Drawings
Fig. 1 is a schematic cross-sectional structural diagram of a dual-voice coil complementary driving type speaker according to an embodiment of the present invention.
Reference numerals:
an upper magnetic conductive plate 1;
a lower magnetic conductive plate 2;
a magnet 3;
a central magnetic conduction column 4 and an exhaust heat dissipation hole 41;
a double voice coil assembly 5, an upper voice coil 51, a lower voice coil 52;
a fixed support 6, a middle heat dissipation hole 61, a side heat dissipation hole 62, a first heat dissipation hole 621, and a second heat dissipation hole 622;
a basin stand 7;
a paper basin 8;
a damper support 9;
a heat sink 10;
a dust screen 11.
Detailed Description
The present invention will be described in detail below with reference to specific embodiments and the accompanying drawings. Detailed description of the inventionwhile the present invention will be described more fully hereinafter with reference to the accompanying drawings, it is to be understood that the embodiments described are illustrative of some, but not all, embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. The following describes an embodiment of the present invention based on its overall structure.
A dual voice coil complementary drive type speaker of this embodiment, as shown in fig. 1, includes an annular upper magnetic conductive plate 1, an annular lower magnetic conductive plate 2, an annular magnet 3 disposed between the upper magnetic conductive plate 1 and the lower magnetic conductive plate 2, a central magnetic conductive column 4 disposed in inner holes of the upper magnetic conductive plate 1 and the lower magnetic conductive plate 2, magnetic gaps formed between the upper magnetic conductive plate 1 and the lower magnetic conductive plate 2 and the central magnetic conductive column 4, a dual voice coil assembly 5 disposed in the magnetic gaps, a fixed support frame 6 for supporting the lower magnetic conductive plate 2 and the central magnetic conductive column 4, a basin frame 7 disposed above the upper magnetic conductive plate 1, a paper basin 8 disposed in the basin frame 7, and a damper support plate 9 connected to the basin frame 7 and the paper basin 8; wherein, also include the air-cooling fin 10 that is set up in the outside of the fixed support frame 6 annularly; the middle part of the central magnetic conduction column 4 is provided with an exhaust heat dissipation hole 41, and the central magnetic conduction column 4 is arranged as an I-shaped central magnetic conduction column 4; wherein, the fixed support frame 6 is an integrated fixed support frame 6, and is provided with a middle heat dissipation hole 61 and a side heat dissipation hole 62; the central heat radiation hole 61 is communicated with the exhaust heat radiation hole 41, and the side heat radiation hole 62 is communicated with the magnetic gap. The double-voice-coil complementary driving type loudspeaker further comprises a radiating fin 10 which is annularly arranged on the outer side of the fixed support frame 6; the middle part of the central magnetic conduction column 4 is provided with an exhaust heat dissipation hole 41, and the fixed support frame 6 is provided with a middle heat dissipation hole 61 and a side heat dissipation hole 62; the middle heat dissipation hole 61 is communicated with the exhaust heat dissipation hole 41, and the side heat dissipation hole 62 is communicated with the magnetic gap; therefore, the radiating performance of the dual voice coil complementary driving type loudspeaker is good, the stability of the loudspeaker is better and the service life of the loudspeaker is prolonged by the synergistic action of the radiating fin 10, the exhaust radiating hole 41, the middle radiating hole 61 and the side radiating holes 62. In addition, because the central magnetic conduction column 4 is arranged to be the I-shaped central magnetic conduction column 4, the magnetic flux leakage of the magnetic circuit is less, and a symmetrical magnetic field can be generated. In addition, because the fixed stay frame 6 sets up to the fixed stay frame of integral type, the heat conduction is faster on the one hand, further improves the heat dispersion of speaker, and on the other hand, the fixed stay frame of integral type can support fixed magnetic conduction board and center magnetic conduction post down simultaneously, has fixed effectual, sound construction's advantage, and it is more convenient to assemble. In addition, the magnetic circuit system is highly symmetrical up and down, so that the front vibration and the rear vibration of the loudspeaker are consistent in working, and the distortion degree of the loudspeaker can be reduced.
In this embodiment, this complementary drive formula speaker of two voice coils is still including setting up in the dust screen 11 of middle part louvre 61, and then can play fine dustproof effect to the speaker.
In this embodiment, the dual voice coil assembly 5 includes an upper voice coil 51 wound in the magnetic gap formed by the upper magnetic conductive plate 1 and the central magnetic conductive column 4, and a lower voice coil 52 wound in the magnetic gap formed by the lower magnetic conductive plate 2 and the central magnetic conductive column 4. When the loudspeaker is in operation, the upper voice coil 51 and the lower voice coil 52 simultaneously drive the cone 8 to make sound. When the loudspeaker works, the inductances of the upper voice coil 51 and the lower voice coil 52 can be mutually offset, so that the impedance of the loudspeaker is stable, the efficiency of the loudspeaker is improved, and the distortion degree is reduced. Because two sets of voice coils about using, heat radiating area compares traditional structure speaker and increases the one time, and the voice coil loudspeaker voice coil temperature can be derived fast, effectively reduces the temperature of voice coil loudspeaker voice coil during operation, makes the speaker at high-power during operation, keeps sound production efficiency reliable and stable, bears power simultaneously and also increases the one time, improves the stability and the durability of speaker. When the loudspeaker of the invention is used, because the upper voice coil 51 and the lower voice coil 52 are complementary to drive the cone 8 to generate sound at the same time, the driving force is doubled compared with the traditional loudspeaker, so that the sound generating efficiency is greatly improved.
Wherein, the upper voice coil 51 and the lower voice coil 52 are reversely wound to form a complementary driving magnetic circuit system. Alternatively, the upper voice coil 51 and the lower voice coil 52 are wound in the same direction and are connected in opposite directions to form a complementary driving magnetic circuit system.
In this embodiment, the side heat dissipation holes 62 include a first heat dissipation hole 621 extending from the top of the fixing support frame 6 to the middle thereof, and a second heat dissipation hole 622 extending from the first heat dissipation hole 621 to the side of the fixing support frame 6. Therefore, the side heat dissipation holes 62 composed of the first heat dissipation holes 621 and the second heat dissipation holes 622 have an advantage of good heat dissipation effect.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (6)
1. A double-voice-coil complementary driving type loudspeaker comprises an annular upper magnetic conductive plate, an annular lower magnetic conductive plate, an annular magnet arranged between the upper magnetic conductive plate and the lower magnetic conductive plate, a central magnetic conductive column arranged in inner holes of the upper magnetic conductive plate and the lower magnetic conductive plate, a magnetic gap formed by the upper magnetic conductive plate and the lower magnetic conductive plate and the central magnetic conductive column respectively, a double-voice-coil assembly arranged in the magnetic gap, a fixed support frame used for supporting the lower magnetic conductive plate and the central magnetic conductive column, a basin frame arranged above the upper magnetic conductive plate, a paper basin arranged in the basin frame and an elastic wave support sheet connected with the basin frame and the paper basin; the method is characterized in that:
the cooling fin is annularly arranged on the outer side of the fixed support frame;
the middle part of the central magnetic conduction column is provided with an exhaust heat dissipation hole, and the central magnetic conduction column is arranged to be an I-shaped central magnetic conduction column;
the fixed support frame is an integrated fixed support frame and is provided with a middle radiating hole and a side radiating hole; the middle radiating hole is communicated with the exhaust radiating hole, and the side radiating hole is communicated with the magnetic gap.
2. The dual voice coil complementary drive speaker of claim 1, wherein: the double-voice-coil complementary driving type loudspeaker further comprises a dustproof net arranged on the middle radiating hole.
3. The dual voice coil complementary drive speaker of claim 1, wherein: the double-voice coil assembly comprises an upper voice coil wound in a magnetic gap formed by the upper magnetic conduction plate and the central magnetic conduction column and a lower voice coil wound in a magnetic gap formed by the lower magnetic conduction plate and the central magnetic conduction column.
4. A dual voice coil complementary drive speaker as claimed in claim 3, wherein: the upper voice coil and the lower voice coil are wound in opposite directions to form a complementary driving magnetic circuit system.
5. A dual voice coil complementary drive speaker as claimed in claim 3, wherein: the upper voice coil and the lower voice coil are wound in the same direction and are connected in the opposite direction to form a complementary driving magnetic circuit system.
6. The dual voice coil complementary drive speaker of claim 1, wherein: the side heat dissipation holes comprise a first heat dissipation hole extending from the top of the fixed support frame to the middle of the fixed support frame and a second heat dissipation hole extending from the first heat dissipation hole to the side of the fixed support frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010302861.0A CN111328000A (en) | 2020-04-17 | 2020-04-17 | Double-voice-coil complementary driving type loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010302861.0A CN111328000A (en) | 2020-04-17 | 2020-04-17 | Double-voice-coil complementary driving type loudspeaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111328000A true CN111328000A (en) | 2020-06-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010302861.0A Pending CN111328000A (en) | 2020-04-17 | 2020-04-17 | Double-voice-coil complementary driving type loudspeaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111328000A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113225651A (en) * | 2021-05-26 | 2021-08-06 | 海宁市西米尼科技有限公司 | Loudspeaker with winding slot voice coil |
| CN114466289A (en) * | 2022-02-18 | 2022-05-10 | 歌尔股份有限公司 | Speaker and electronic apparatus |
| CN114466288A (en) * | 2022-02-18 | 2022-05-10 | 歌尔股份有限公司 | Speaker and electronic apparatus |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1111896A (en) * | 1994-11-11 | 1995-11-15 | 陈正宗 | Method for improving property of loudspeaker and double magnetic field double push-pull loudspeaker |
| CN1741683A (en) * | 2004-08-06 | 2006-03-01 | 张凡 | Inner magnetic transducer driver with resistance load characteristics |
| JP2007150928A (en) * | 2005-11-30 | 2007-06-14 | Foster Electric Co Ltd | Frame for speaker, and speaker using the frame |
| CN211909139U (en) * | 2020-04-17 | 2020-11-10 | 广州束合电子科技有限公司 | Double-voice-coil complementary driving type loudspeaker |
-
2020
- 2020-04-17 CN CN202010302861.0A patent/CN111328000A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1111896A (en) * | 1994-11-11 | 1995-11-15 | 陈正宗 | Method for improving property of loudspeaker and double magnetic field double push-pull loudspeaker |
| CN1741683A (en) * | 2004-08-06 | 2006-03-01 | 张凡 | Inner magnetic transducer driver with resistance load characteristics |
| JP2007150928A (en) * | 2005-11-30 | 2007-06-14 | Foster Electric Co Ltd | Frame for speaker, and speaker using the frame |
| CN211909139U (en) * | 2020-04-17 | 2020-11-10 | 广州束合电子科技有限公司 | Double-voice-coil complementary driving type loudspeaker |
Non-Patent Citations (1)
| Title |
|---|
| 张平柯: "扬声器对低频短纯音信号响应的研究", 《中南大学学报（自然科学版）》, 26 December 2010 (2010-12-26) * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113225651A (en) * | 2021-05-26 | 2021-08-06 | 海宁市西米尼科技有限公司 | Loudspeaker with winding slot voice coil |
| CN114466289A (en) * | 2022-02-18 | 2022-05-10 | 歌尔股份有限公司 | Speaker and electronic apparatus |
| CN114466288A (en) * | 2022-02-18 | 2022-05-10 | 歌尔股份有限公司 | Speaker and electronic apparatus |
| CN114466289B (en) * | 2022-02-18 | 2024-03-12 | 歌尔股份有限公司 | Speaker and electronic device |
| CN114466288B (en) * | 2022-02-18 | 2024-03-12 | 歌尔股份有限公司 | Speaker and electronic device |
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