CN113163308A - Enhanced external magnetic loudspeaker - Google Patents
Enhanced external magnetic loudspeaker Download PDFInfo
- Publication number
- CN113163308A CN113163308A CN202110575996.9A CN202110575996A CN113163308A CN 113163308 A CN113163308 A CN 113163308A CN 202110575996 A CN202110575996 A CN 202110575996A CN 113163308 A CN113163308 A CN 113163308A
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- Prior art keywords
- voice coil
- vibrating diaphragm
- connecting strip
- loudspeaker
- magnetic
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- 239000012528 membrane Substances 0.000 abstract description 4
- 230000011218 segmentation Effects 0.000 abstract 2
- 239000000428 dust Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035772 mutation Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000005236 sound signal Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Images
Classifications
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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
- H04R9/04—Construction, mounting, or centering of coil
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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
- H04R7/16—Mounting or tensioning of diaphragms or cones
-
- 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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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
The invention discloses an enhanced external magnetic loudspeaker, relates to the field of loudspeakers, and solves the technical problem of serious distortion of the joint of a voice coil and a vibrating diaphragm and the segmentation vibration of the vibrating diaphragm in the existing external magnetic loudspeaker, wherein the enhanced external magnetic loudspeaker comprises a basin stand and is characterized in that: the improved voice coil loudspeaker comprises a basin frame, a voice coil loudspeaker body connecting strip and a voice coil loudspeaker body connecting strip, wherein the basin frame is provided with a hollow annular magnetic conduction upper plate, the hollow annular permanent magnet is arranged below the magnetic conduction upper plate, the magnetic conduction lower plate is arranged below the permanent magnet, the magnetic conduction lower plate is provided with a magnetic conduction middle column in the middle, a magnetic gap is formed between the magnetic conduction upper plate and the magnetic conduction middle column, the voice coil loudspeaker body framework is arranged in the magnetic gap, the surface of the voice coil loudspeaker body framework above the magnetic gap is connected with the voice coil loudspeaker body vibrating membrane connecting strip, and the other end of the voice coil vibrating membrane connecting strip is connected with the voice coil loudspeaker body. The invention improves the connection strength of the voice coil and the vibrating diaphragm immediately through the connecting strip of the voice coil and the vibrating diaphragm, and the connecting strip reflects the impedance curve to be more smooth before improvement, so that the surface segmentation vibration is reduced, and the uncontrollable factors of the loudspeaker are reduced.
Description
Technical Field
The invention relates to the field of loudspeakers, in particular to an enhanced external magnetic loudspeaker.
Background
The loudspeaker is a transducer for converting electric signal into sound signal, its performance has great influence on tone quality, and it is the weakest and most distorted device in the whole acoustic equipment.
The vibration of cutting apart of voice coil loudspeaker voice coil and vibrating diaphragm junction and vibrating diaphragm in the outer magnetic coil speaker at present lets the distortion aggravation of speaker, and is uncontrollable, and the index difference that causes every speaker is big, and the impedance curve of the very clear reaction of vibration ability of cutting apart of voice coil loudspeaker voice coil and vibrating diaphragm junction and vibrating diaphragm to the impedance curve display of a low impedance speaker of actual measurement, at 1200HZ, 3000HZ, 4000HZ has obvious impedance sudden change, as shown in FIG. 8.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides an enhanced external magnetic loudspeaker.
In order to achieve the purpose, the invention adopts the following technical scheme: including the basin frame, its characterized in that: the improved voice coil loudspeaker comprises a basin frame, a voice coil loudspeaker body connecting strip and a voice coil loudspeaker body connecting strip, wherein the basin frame is provided with a hollow annular magnetic conduction upper plate, the hollow annular permanent magnet is arranged below the magnetic conduction upper plate, the magnetic conduction lower plate is arranged below the permanent magnet, the magnetic conduction lower plate is provided with a magnetic conduction middle column in the middle, a magnetic gap is formed between the magnetic conduction upper plate and the magnetic conduction middle column, the voice coil loudspeaker body framework is arranged in the magnetic gap, the surface of the voice coil loudspeaker body framework above the magnetic gap is connected with the voice coil loudspeaker body vibrating membrane connecting strip, and the other end of the voice coil vibrating membrane connecting strip is connected with the voice coil loudspeaker body.
As a further description of the above technical solution:
the surface curve of the joint of the voice coil and the vibrating diaphragm connecting strip and the vibrating diaphragm is consistent with the curve of the combining position of the vibrating diaphragm, and the other end of the vibrating diaphragm is connected with the top end of the basin frame.
The voice coil loudspeaker voice coil vibrating diaphragm connecting strip set up the internal surface at the voice coil loudspeaker voice coil skeleton, the voice coil loudspeaker voice coil vibrating diaphragm connecting strip other end connect in the top of vibrating diaphragm, the basin frame on be provided with and decide a core and prop up the piece, the voice coil loudspeaker voice coil skeleton with decide a core and prop up piece fixed connection.
The voice coil loudspeaker voice coil vibrating diaphragm connecting strip set up the surface at the voice coil loudspeaker voice coil skeleton, the voice coil loudspeaker voice coil vibrating diaphragm connecting strip other end connect the below at the vibrating diaphragm.
The basin frame on be provided with decides the core and prop up the piece, voice coil loudspeaker voice coil vibrating diaphragm connecting strip and decide core and prop up piece fixed connection, decide and be equipped with the groove that is used for the voice coil loudspeaker voice coil vibrating diaphragm connecting strip that holds on the core and prop up the piece.
The voice coil vibrating diaphragm connecting strip is of a vertical fin type.
The voice coil vibrating diaphragm connecting strip is triangle stable type.
The upper surface of voice coil vibrating diaphragm connecting strip is provided with the speaker dustproof cap, voice coil vibrating diaphragm connecting strip is in the speaker dustproof cap and/or outside.
The invention has the following beneficial effects: use this technique to reform transform one for establishing ties the low impedance speaker that uses, establish ties and use the uniformity requirement height to every speaker performance index, and the vibration of cutting apart of voice coil loudspeaker voice coil and vibrating diaphragm junction and vibrating diaphragm lets the distortion aggravation of speaker, and is uncontrollable, and the index difference that causes every speaker is big. The joint of the voice coil and the diaphragm and the dividing vibration of the diaphragm can be clearly reflected to the impedance curve of the loudspeaker, the impedance curve of the low-impedance loudspeaker before improvement shows that the impedance curve of the low-impedance loudspeaker has obvious impedance mutation at 1200HZ, 3000HZ and 4000HZ, the low-impedance loudspeaker after improvement is enhanced by using the voice coil and diaphragm connecting strip of the invention, the impedance curve is improved to be smooth before improvement, the surface dividing vibration is reduced, and the uncontrollable factors of the loudspeaker are reduced, as shown in figures 7-10.
Drawings
FIG. 1 is a schematic cross-sectional view of an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of another embodiment of the present invention;
FIG. 3 is a schematic diagram of a voice coil bobbin structure according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of another embodiment of the present invention;
FIG. 5 is a schematic diagram of a triangle-shaped stable voice coil diaphragm connecting strip according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of a diaphragm connecting strip of a vertical fin voice coil according to an embodiment of the present invention;
FIG. 7 is a graph of the effective smoothed impedance of the present invention;
fig. 8 is a graph of impedance of a conventional loudspeaker without using the technical features of the present invention;
FIG. 9 is a table of parameters of a distortion curve for a loudspeaker according to an embodiment of the present invention;
fig. 10 is a table of parameters for a distortion curve for a conventional loudspeaker that does not use features of the present technique.
Illustration of the drawings:
1. a voice coil former; 2. fixing a core support plate; 3. vibrating diaphragm; 4. a magnetic gap; 5. a magnetic conduction lower plate; 6. a permanent magnet; 7. a magnetic conductive upper plate; 8. a voice coil diaphragm connecting strip; 9. a basin stand; 10. a magnetic conductive center pillar; 11. a dust cap; 12. fixing a chip support groove; 13. a triangular stable form; 14. fin type.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; 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.
Referring to fig. 1-6, the present invention provides: including basin frame 9, basin frame 9 below be equipped with cavity annular magnetic conduction upper plate 7, 7 below of magnetic conduction upper plate be equipped with cavity annular permanent magnet 6, 6 below of permanent magnet be equipped with magnetic conduction hypoplastron 5, 5 middle archs of magnetic conduction hypoplastron form magnetic conduction center pillar 10, magnetic conduction upper plate 7 and magnetic conduction center pillar 10 between form magnetic gap 4, magnetic gap 4 in be provided with voice coil loudspeaker voice coil skeleton 1, voice coil loudspeaker voice coil skeleton 1 is located the surface connection of magnetic gap top and has voice coil loudspeaker voice coil vibrating diaphragm connecting strip 8, vibrating diaphragm 3 is connected to the 8 other ends of voice coil loudspeaker voice coil vibrating diaphragm connecting strip. The surface curve of the junction of the voice coil and vibrating diaphragm connecting strip 8 and the vibrating diaphragm 3 is consistent with the curve of the joint position of the vibrating diaphragm 3, and the other end of the vibrating diaphragm 3 is connected with the top end of the basin frame 9. Voice coil loudspeaker voice coil vibrating diaphragm connecting strip 8 set up the internal surface at voice coil loudspeaker voice coil skeleton 1, the 8 other ends of voice coil loudspeaker voice coil vibrating diaphragm connecting strip connect in the top of vibrating diaphragm 3, basin frame 9 on be provided with and decide a core and prop up piece 2, voice coil loudspeaker voice coil skeleton 1 with decide a core and prop up piece 2 fixed connection.
The voice coil diaphragm connecting strip 8 may be a vertical fin type 14, as shown in fig. 6.
The voice coil diaphragm connecting strip 8 may be a triangular stabilization type 13, as shown in fig. 5.
The upper surface of voice coil vibrating diaphragm connecting strip 8 is provided with speaker dust cap 11, voice coil vibrating diaphragm connecting strip 8 is inside and/or outside speaker dust cap 11, as shown in fig. 1, voice coil vibrating diaphragm connecting strip 8 is inside and outside speaker dust cap 11. As shown in fig. 2, the voice coil diaphragm connecting strip 8 is in the speaker dust cap 11.
Voice coil loudspeaker voice coil vibrating diaphragm connecting strip 8 also can set up the surface at voice coil loudspeaker voice coil skeleton 1, voice coil loudspeaker voice coil vibrating diaphragm connecting strip 8 other end connect in the below of vibrating diaphragm 3, basin frame 9 on be provided with and decide a chip 2, voice coil loudspeaker voice coil vibrating diaphragm connecting strip 8 and decide 2 fixed connection of chip, decide and be equipped with the chip groove 12 of deciding that is used for the voice coil loudspeaker voice coil vibrating diaphragm connecting strip 8 that holds on the chip, as shown in fig. 2-4.
The preparation method comprises the following steps: when the voice coil vibrating diaphragm connecting strip 8 is arranged on the outer surface of the voice coil framework, a positioning jig for the voice coil vibrating diaphragm connecting strip 8 on the voice coil framework 1 is manufactured, the jig is two semi-cylinders which are combined into a hollow cylinder, the inner diameter of the upper end of the combined jig is slightly larger than the outer diameter of the voice coil framework 1, the inner diameter of the lower end of the jig is larger than that of a voice coil, the height of the jig and the voice coil is equal, the upper end of the small inner diameter of the jig is provided with positioning grooves corresponding to the size and the number of the voice coil vibrating diaphragm connecting strip 8, the grooves are equidistant, the voice coil vibrating diaphragm connecting strip 8 positioning jig is combined on the outer surface of the voice coil framework 1, the bottom of the voice coil vibrating diaphragm connecting strip 8 is flush with the voice coil framework 1, the voice coil vibrating diaphragm connecting strip 8 is bonded into the positioning grooves of the voice coil vibrating diaphragm connecting strip 8 positioning jig, the voice coil vibrating diaphragm connecting strip, the other end of the voice coil vibrating diaphragm connecting strip 8, one end of which is bonded on the voice coil framework 1, is bonded on the back surface of the vibrating diaphragm 3, and the other end is connected with an external lead of the voice coil and a bonding dust cap 11.
When voice coil loudspeaker voice coil vibrating diaphragm connecting strip 8 is in voice coil loudspeaker voice coil skeleton internal surface, earlier with speaker magnetic circuit, the basin frame, the voice coil loudspeaker voice coil, the vibrating diaphragm is installed, extract voice coil loudspeaker voice coil installation tool, the special positioning jig of 8 reinforcing of internal surface voice coil loudspeaker voice coil vibrating diaphragm connecting strip is put into from the top, the tool is two halfcylinders, close into a hollow cylinder, the tool external diameter is less than 1 internal diameter of voice coil loudspeaker voice coil skeleton slightly after having closed, open the constant head tank that corresponds 8 sizes of voice coil loudspeaker voice coil vibrating diaphragm connecting strip and quantity in the upper end of tool, the equidistance between groove and the groove, close 8 positioning jig of voice coil loudspeaker voice coil vibrating diaphragm connecting strip at 1 internal surface of voice coil loudspeaker voice coil skeleton, 8 the end of bending and the laminating of vibrating diaphragm of voice coil vibrating diaphragm connecting strip.
The manufacturing method can obtain the enhanced loudspeaker with stable distribution balance, and additional distortion caused by unbalanced assembly can not be generated.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (8)
1. An enhanced external magnetic loudspeaker comprising a frame (9), characterized in that: basin frame (9) below be equipped with cavity annular magnetic conduction upper plate (7), magnetic conduction upper plate (7) below be equipped with cavity annular permanent magnet (6), permanent magnet (6) below be equipped with magnetic conduction hypoplastron (5), magnetic conduction hypoplastron (5) middle protruding magnetic conduction center pillar (10) that forms, magnetic conduction upper plate (7) and magnetic conduction center pillar (10) between form magnetic gap (4), magnetic gap (4) in be provided with voice coil loudspeaker voice coil skeleton (1), voice coil loudspeaker voice coil skeleton (1) is located the surface of magnetic gap top and is connected with voice coil loudspeaker voice coil vibrating diaphragm connecting strip (8), vibrating diaphragm (3) is connected to voice coil loudspeaker voice coil vibrating diaphragm connecting strip (8) other end.
2. An enhanced external magnetic loudspeaker according to claim 1, wherein: the surface curve of the joint of the voice coil and vibrating diaphragm connecting strip (8) and the vibrating diaphragm (3) is consistent with the curve of the joint position of the vibrating diaphragm (3), and the other end of the vibrating diaphragm (3) is connected with the top end of the basin frame (9).
3. An enhanced external magnetic loudspeaker according to claim 1, wherein: voice coil loudspeaker voice coil vibrating diaphragm connecting strip (8) set up the internal surface at voice coil loudspeaker voice coil skeleton (1), voice coil loudspeaker voice coil vibrating diaphragm connecting strip (8) other end connect in the top of vibrating diaphragm (3), basin frame (9) on be provided with and decide a chip and prop up piece (2), voice coil loudspeaker voice coil skeleton (1) and decide a chip and prop up piece (2) fixed connection.
4. An enhanced external magnetic loudspeaker according to claim 1, wherein: the voice coil vibrating diaphragm connecting strip (8) is arranged on the outer surface of the voice coil framework (1), and the other end of the voice coil vibrating diaphragm connecting strip (8) is connected below the vibrating diaphragm (3).
5. An enhanced external magnetic loudspeaker according to claim 4, wherein: basin frame (9) on be provided with fixed core support piece (2), voice coil loudspeaker voice coil vibrating diaphragm connecting strip (8) and fixed core support piece (2) fixed connection, be equipped with fixed core support piece groove (12) that are used for voice coil loudspeaker voice coil vibrating diaphragm connecting strip (8) that hold on fixed core support piece (2).
6. An enhanced external magnetic loudspeaker according to claim 1, wherein: the voice coil diaphragm connecting strip (8) is of a vertical fin type (14).
7. An enhanced external magnetic loudspeaker according to claim 1, wherein: the voice coil vibrating diaphragm connecting strip (8) is a triangular stable type (13).
8. An enhanced external magnetic loudspeaker according to claim 1, wherein: the upper surface of voice coil vibrating diaphragm connecting strip (8) is provided with speaker dustproof cap (11), voice coil vibrating diaphragm connecting strip (8) are in speaker dustproof cap (11) and/or outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110575996.9A CN113163308B (en) | 2021-05-26 | 2021-05-26 | Enhanced external magnetic loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110575996.9A CN113163308B (en) | 2021-05-26 | 2021-05-26 | Enhanced external magnetic loudspeaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113163308A true CN113163308A (en) | 2021-07-23 |
| CN113163308B CN113163308B (en) | 2024-04-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110575996.9A Active CN113163308B (en) | 2021-05-26 | 2021-05-26 | Enhanced external magnetic loudspeaker |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001218295A (en) * | 2000-02-01 | 2001-08-10 | Kenwood Corp | Joining adaptor between loudspeaker diaphragm and voice coil bobbin |
| CN2744109Y (en) * | 2004-09-30 | 2005-11-30 | 太原师范学院 | Tenor-bass loudspeaker |
| JP2007088649A (en) * | 2005-09-21 | 2007-04-05 | Fujitsu Ten Ltd | Loudspeaker unit |
| JP2007180958A (en) * | 2005-12-28 | 2007-07-12 | Pioneer Electronic Corp | Speaker device |
| CN206807761U (en) * | 2017-05-27 | 2017-12-26 | 歌尔丹拿音响有限公司 | A kind of vibration component and the loudspeaker provided with the vibration component |
| CN209526876U (en) * | 2018-12-30 | 2019-10-22 | 瑞声科技(新加坡)有限公司 | A kind of loudspeaker |
| CN209731555U (en) * | 2018-06-29 | 2019-12-03 | 哈曼国际工业有限公司 | Loudspeaker vibrating basin and loudspeaker |
-
2021
- 2021-05-26 CN CN202110575996.9A patent/CN113163308B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001218295A (en) * | 2000-02-01 | 2001-08-10 | Kenwood Corp | Joining adaptor between loudspeaker diaphragm and voice coil bobbin |
| CN2744109Y (en) * | 2004-09-30 | 2005-11-30 | 太原师范学院 | Tenor-bass loudspeaker |
| JP2007088649A (en) * | 2005-09-21 | 2007-04-05 | Fujitsu Ten Ltd | Loudspeaker unit |
| JP2007180958A (en) * | 2005-12-28 | 2007-07-12 | Pioneer Electronic Corp | Speaker device |
| CN206807761U (en) * | 2017-05-27 | 2017-12-26 | 歌尔丹拿音响有限公司 | A kind of vibration component and the loudspeaker provided with the vibration component |
| CN209731555U (en) * | 2018-06-29 | 2019-12-03 | 哈曼国际工业有限公司 | Loudspeaker vibrating basin and loudspeaker |
| CN209526876U (en) * | 2018-12-30 | 2019-10-22 | 瑞声科技(新加坡)有限公司 | A kind of loudspeaker |
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| Publication number | Publication date |
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| CN113163308B (en) | 2024-04-19 |
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