CN2230070Y - Loud-speaker with double voice coil, double magnetic field and double push-pull - Google Patents
Loud-speaker with double voice coil, double magnetic field and double push-pull Download PDFInfo
- Publication number
- CN2230070Y CN2230070Y CN 94246701 CN94246701U CN2230070Y CN 2230070 Y CN2230070 Y CN 2230070Y CN 94246701 CN94246701 CN 94246701 CN 94246701 U CN94246701 U CN 94246701U CN 2230070 Y CN2230070 Y CN 2230070Y
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- double
- soft iron
- magnetic
- voice coil
- vibrating diaphragm
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Abstract
The utility model relates to a double voice coil, double magnetic field and double push-pull loudspeaker, which is composed of a magnetism conducting soft iron, a non-magnetism conducting supporting piece, a magnet, a double voice coil, a voice coil skeleton, a ripple bracket, a vibrating diaphragm, a dust cover which can be used as an alt vibrating diaphragm, a vibrating diaphragm elastic edge, a basin frame, etc. which are jointly bonded or welded together. The magnetism conducting soft iron is connected with the non-magnetism conducting supporting piece; the magnet is connected with the magnetism conducting soft iron and the non-magnetism conducting supporting piece, or the magnet is arranged between the magnetism conducting soft iron and the non-magnetism conducting supporting piece, the periphery of the magnet is encircled by the magnetism conducting soft iron, and the magnet is connected with the magnetism conducting soft iron and the non-magnetism conducting supporting piece; the double voice coil encircles the voice coil skeleton and is positioned in a double magnetic gap and then connected with the ripple bracket and the vibrating diaphragm, the vibrating diaphragm elastic edge is connected with the basin frame, and the basin frame is connected with the magnetism conducting soft iron. The utility model has the advantages of high efficiency, high fidelity, variable impedance property, large bearing power and large voice power.
Description
The utility model is a kind of double-tone circle double magnetic field double push-pull loudspeaker, belongs to the electroacoustic techniques field.
Existing loud speaker kind is a lot, and electromagnetic type, moving-coil type, piezoelectric type, electrostatic etc. are arranged, and what use the most extensively is coil-moving speaker.But the magnetic field of present loud speaker is single magnetic field structure, and in the single magnetic field of its voice coil loudspeaker voice coil virgin, so power is little, efficient is low and can't change its impedance operator, can't overcome even-order harmonic distortion.Though the report of existing double-coil loudspeaker, it just stack on original voice coil loudspeaker voice coil around on one group of identical voice coil loudspeaker voice coil or be the double-tone circle of coaxial different-diameter, it can only be connected into the push-pull type voice coil loudspeaker voice coil output circuit of connecting with custom-designed power amplifier cooperation.Though it can eliminate even-order harmonic distortion, because it has three binding posts, and all at present electroacoustic equipment products all have only two binding posts that connect loud speaker, its output wiring terminal bad adaptability, and this has just limited its application greatly.And the double-tone coil structures in single magnetic field, the coiling side by side of its voice coil loudspeaker voice coil, otherwise its lead-out wire is drawn existing problems.And coiling will increase the length of voice coil loudspeaker voice coil side by side, and when being connected into the series connection push pull mode, under big tone currents effect, half of voice coil loudspeaker voice coil can be jumped out the sphere of action in magnetic field; Simultaneously the double-tone coil structures and the coaxial double-tone coil structures of this superimposed type, the thickness of its voice coil loudspeaker voice coil is 2 times of original voice coil loudspeaker voice coil thickness, directly has influence on the radiating condition of voice coil loudspeaker voice coil, so that has reduced the power that bears that loud speaker does not burn voice coil loudspeaker voice coil.
The purpose of this utility model is exactly that existing power of loudspeaker is little, efficient is low in order to overcome, can't overcome even-order harmonic distortion, can't its impedance operator of coup or output wiring terminal bad adaptability, radiating condition poor, do not burn voice coil loudspeaker voice coil bear power little etc. shortcoming and problem, a kind of high efficiency, high-fidelity are provided, have and powerful bear that power, output wiring terminal adaptability are strong, the double-tone circle double magnetic field double push-pull loudspeaker of variableimpedance characteristic.
The utility model is realized by following several magnetic head structure technical schemes: its structural representation can be respectively as Fig. 1, Fig. 2, Fig. 3, Fig. 4, shown in Figure 5.Wherein Fig. 1 is a double-tone circle double magnetic field double push-pull outer-magnet speaker structural representation; Fig. 2 is a double-tone circle double magnetic field double push-pull internal magnetic loudspeaker structural representation; Fig. 4 is that double-tone circle double magnetic field double push-pull built-up shaft is to the magnet loudspeaker structural representation; Fig. 4 is a double-tone circle double magnetic field double push-pull radial magnet outer-magnet speaker structural representation: Fig. 5 is a double-tone circle double magnetic field double push-pull radial-axial combination magnet loadspeaker structure schematic diagram.They by magnetic conductive soft iron 1,3,5, non-magnetic conduction supporting member 2,6, permanent magnet 4, up and down two voice coil loudspeaker voice coils 7,8, speech coil framework 9, ripple support 10, vibrating diaphragm 11, dust cover hold concurrently tweeters diaphragms 12, vibrating diaphragm elastic edge 13, basin frame 14 bonds jointly or be welded to connect formation, its interconnected relationship is: magnetic conductive soft iron 1 and non-magnetic conduction supporting member 2 mutually bonding connections, and permanent magnet 4 and magnetic conductive soft iron 3,5 and non-magnetic conduction supporting member be 6 bonding, be welded to connect; Or permanent magnet 4 is positioned central authorities, its peripheral magnetic conductive soft iron 1,3, permanent magnet 4 and magnetic conductive soft iron 1,3 and 2 bonding connections of non-magnetic conduction supporting member of surrounding; Magnetic conductive soft iron 3 bonds, is welded to connect with non-magnetic conduction supporting member 8 again; Or permanent magnet 4 and magnetic conductive soft iron 1,3,5 and non-magnetic conduction supporting member 2,6 bonding, be welded to connect; Or go up permanent magnet 4 and magnetic conductive soft iron 1,3 and non-magnetic conduction supporting member 6,14 bonding connections of basin frame, following permanent magnet 4 and magnetic conductive soft iron 1,3 and 6 bonding connections of non-magnetic conduction supporting member; Or go up permanent magnet 4 and magnetic conductive soft iron 3 and non-magnetic conduction supporting member 8,14 bonding connections of basin frame, middle permanent magnet 4 and magnetic conductive soft iron 1 and 2 bonding connections of non-magnetic conduction supporting member, following permanent magnet 4 and magnetic conductive soft iron 3 and 6 bonding connections of non-magnetic conduction supporting member; Voice coil loudspeaker voice coil 7,8 is around in speech coil framework 9 and is positioned in two magnetic gaps, again with ripple support 10 and vibrating diaphragm 11 bonding connections, voice coil loudspeaker voice coil 7,8 and vibrating diaphragm 11 can free vibration and do not collided with the magnetic gap edge, the top of vibrating diaphragm 11 and 13 bonding connections of vibrating diaphragm elastic edge, dust cover is held concurrently tweeters diaphragms 12 and 11 bonding connections of vibrating diaphragm, vibrating diaphragm elastic edge 13 and basin frame 14 common bonding connections, basin frame 14 and magnetic conductive soft iron be 3 bonding, be welded to connect.
The operation principle and the existing coil-moving speaker of double-tone circle double magnetic field double push-pull loudspeaker are basic identical.Different is that two magnetic gaps are arranged in the magnetic field structure, two voice coil loudspeaker voice coils lay respectively in two magnetic gaps up and down, point to the words at inner face center when a residing magnetic direction of voice coil loudspeaker voice coil, then the residing magnetic direction of another voice coil loudspeaker voice coil is just opposite, it is directed outward, promptly magnetic direction is " pushing away " in the magnetic gap, and the magnetic direction of another magnetic gap is exactly " drawing ".The actuating force that should make two voice coil loudspeaker voice coils produce equidirectional during wiring drives vibrating diaphragm, promptly requires two voice coil loudspeaker voice coils to pass to rightabout tone currents, and at this moment two voice coil loudspeaker voice coils just can be connected into push-pull circuit.Because two voice coil loudspeaker voice coil work are arranged, thrust doubles, and the sounding of vibrating diaphragm also doubles, and electro-acoustic conversion efficiency is improved.Concerning Fig. 2, Fig. 4, loud speaker shown in Figure 5, the outer magnetic conductive soft iron 3 that is with of its magnetic head encases, can make the unlikely magnetic head outside that leaks into, the magnetic field of permanent magnet 4, have only the loud speaker of this not leakage field just can be used for the electroacoustic equipment that television set etc. requires the dried sorrow in no magnetic field; Concerning Fig. 4, loud speaker shown in Figure 5, peripheral permanent magnet is radial magnetizing or claims radiation to magnetize, and constitute by the biradial magnet and to recommend magnetic field, the magnetic field of this warp-wise magnet does not need through permeability magnetic material and directly act on voice coil loudspeaker voice coil, thereby the magnetic field intensity of voice coil loudspeaker voice coil work is improved, the actuating force of vibrating diaphragm is strengthened.
The utility model is compared following advantage and useful effect with existing loud speaker: (1) enters the double-tone circle if lose genuine even-order harmonic electric current because of certain reason, because of the even-order harmonic electric current is " same-phase ", so two voice coil loudspeaker voice coils will produce opposite thrust oneself in speech coil framework and offset, the vibrating diaphragm of loud speaker can not vibrate, loud speaker is sounding not, this has just eliminated even-order harmonic distortion, improved the fidelity of loud speaker, (2) because the double-tone circle in two magnetic gaps has double push-pull magnetic field to promote the vibrating diaphragm sounding of loud speaker, its thrust doubles than existing single-tone circle loud speaker thrust, so this kind loud speaker electro-acoustic conversion efficiency is high especially; (3) because each voice coil loudspeaker voice coil of loud speaker has pair of terminals, the double-tone circle just has four binding posts, so this kind loud speaker has " impedance characteristic ", the impedance of voice coil loudspeaker voice coil parallel pushpull reduces by half, the series connection push-pull impedances doubles, and only connects certain voice coil loudspeaker voice coil, and then impedance is identical with existing moving-coil or loud speaker; (4) because this double-tone circle double magnetic field double push-pull loudspeaker, its each voice coil loudspeaker voice coil is in respectively in the magnetic gap, can not influence the heat radiation power of voice coil loudspeaker voice coil, it is big that it does not burn voice coil loudspeaker voice coil power, add it is the work of double-tone circle, so its power that bears is 2 times of existing single-tone circle loud speaker, the power that it bears is big, the also corresponding increase of the acoustical power of output; (5) because this kind loadspeaker structure is simple, and production cost and existing coil-moving speaker are very nearly the same, and therefore its performance will have powerful competitiveness and vitality well beyond existing loud speaker on market, good economic benefit and social benefit can be arranged.
Below Figure of description is further specified as follows: Fig. 1 is a double-tone circle double magnetic field double push-pull outer-magnet speaker structural representation, Fig. 2 is a double-tone circle double magnetic field double push-pull internal magnetic loudspeaker structural representation, Fig. 3 is a double-tone circle double magnetic field double push-pull composite type axial magnet Yang Sheng device structural representation, Fig. 4 is a double-tone circle double magnetic field double push-pull radial magnet loadspeaker structure schematic diagram, Fig. 5 is a double-tone circle double magnetic field double push-pull radial-axial combination magnet loadspeaker structure schematic diagram, and Fig. 6 is the production assembling instance graph of double-tone circle double magnetic field double push-pull outer-magnet speaker.Among each figure: 1,3,5 is magnetic conductive soft iron, and 2,6 is non-magnetic conduction supporting member, and 4 is permanent magnet, and 7,8 is voice coil loudspeaker voice coil, and 9 is speech coil framework, and 10 is the ripple support, and 11 is vibrating diaphragm, and 12 are the dust cover tweeters diaphragms of holding concurrently, and 13 is the vibrating diaphragm elastic edge, and 14 is the basin frame.
Execution mode of the present utility model can be as follows: the enforcement of this kind loud speaker, make comparatively simply, it is basic identical with the method that existing coil-moving speaker is manufactured, and just speech coil framework length is grown a bit, how around a voice coil loudspeaker voice coil.And press Fig. 1, Fig. 2, Fig. 3, Fig. 4, shown in Figure 5, and by the interconnected relationship of described each parts of top specification carry out the loud speaker magnetic head assembling, bond or be welded to connect, just can implement to make this double-tone circle double magnetic field double push-pull loudspeaker preferably.Fig. 6 is the production assembling instance graph of the double-tone circle double magnetic field double push-pull outer-magnet speaker of 6 inches half bores, among the figure only face go out the magnetic head assembly structure of loud speaker, all the other are partly identical with 6 inch half coil-moving speaker of existing standard.Dimensional units is millimeter among the figure, φ A=74 among the figure; φ B=68; φ C=27; φ D=25; φ E=20; φ F=8; φ G=23; H=20; A=3; B=3; C=6; H=5; R=3.
Claims (2)
1, a kind of double-tone circle double magnetic field double push-pull loudspeaker, it is characterized in that: it is by magnetic conductive soft iron (1), (3), (5), non-magnetic conduction supporting member (2), (6), permanent magnet (4), two voice coil loudspeaker voice coils (7) up and down, (8), speech coil framework (9), ripple support (10), vibrating diaphragm (11), the dust cover tweeters diaphragms (12) of holding concurrently, vibrating diaphragm elastic edge (13), basin frame (14) bonds jointly or is welded to connect formation, its interconnected relationship is: magnetic conductive soft iron (1) and bonding connection of non-magnetic conduction supporting member (2), permanent magnet (4) and magnetic conductive soft iron (3), (5) and non-magnetic conduction supporting member (6) bonding, be welded to connect, voice coil loudspeaker voice coil (7), (8) be around in speech coil framework (9) and being positioned in two magnetic gaps, again with ripple support (10) and vibrating diaphragm (11) bonding connection, voice coil loudspeaker voice coil (7), (8) and vibrating diaphragm (11) can free vibration and do not collide with the magnetic gap edge, the top of vibrating diaphragm (11) and bonding connection of vibrating diaphragm elastic edge (13), dust cover is held concurrently tweeters diaphragms (12) and bonding connection of vibrating diaphragm (11), vibrating diaphragm elastic edge (13) and the common bonding connection of basin frame (14), basin frame (14) is bonding with magnetic conductive soft iron (3), be welded to connect.
2, by the described double-tone circle of claim 1 double magnetic field double push-pull loudspeaker, its feature also is: permanent magnet (4) is positioned central authorities, its peripheral magnetic conductive soft iron (1), (3) of surrounding, permanent magnet (4) bonds with non-magnetic conduction supporting member (6) or is welded to connect with magnetic conductive soft iron (1), (3) and bonding connection of non-magnetic conduction supporting member (2), magnetic conductive soft iron (3); Or permanent magnet (4) and magnetic conductive soft iron (1), (3), (5) and non-magnetic conduction supporting member (2), (6) bonding, be welded to connect; Or last permanent magnet (4) and magnetic conductive soft iron (1), (3) and non-magnetic conduction supporting member (6), the bonding connection of basin frame (14), following permanent magnet (4) and magnetic conductive soft iron (1), (3) and bonding connection of non-magnetic conduction supporting member (6); Or go up permanent magnet (4) and magnetic conductive soft iron (3) and non-magnetic conduction supporting member (6), the bonding connection of basin frame (14), middle permanent magnet (4) and magnetic conductive soft iron (1) and bonding connection of non-magnetic conduction supporting member (2), following permanent magnet (4) and magnetic conductive soft iron (3) and bonding connection of non-magnetic conduction supporting member (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94246701 CN2230070Y (en) | 1994-11-23 | 1994-11-23 | Loud-speaker with double voice coil, double magnetic field and double push-pull |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94246701 CN2230070Y (en) | 1994-11-23 | 1994-11-23 | Loud-speaker with double voice coil, double magnetic field and double push-pull |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2230070Y true CN2230070Y (en) | 1996-06-26 |
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ID=33852121
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94246701 Expired - Fee Related CN2230070Y (en) | 1994-11-23 | 1994-11-23 | Loud-speaker with double voice coil, double magnetic field and double push-pull |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2230070Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001015493A1 (en) * | 1999-08-20 | 2001-03-01 | Fan Zhang | Double coils and double magnetic gaps transducer |
| CN102905214A (en) * | 2011-07-25 | 2013-01-30 | 张凡 | Driver of double-magnet double-magnetic-gap double-coil transducer |
| CN114466288A (en) * | 2022-02-18 | 2022-05-10 | 歌尔股份有限公司 | Speaker and electronic apparatus |
| CN114466289A (en) * | 2022-02-18 | 2022-05-10 | 歌尔股份有限公司 | Speaker and electronic apparatus |
-
1994
- 1994-11-23 CN CN 94246701 patent/CN2230070Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001015493A1 (en) * | 1999-08-20 | 2001-03-01 | Fan Zhang | Double coils and double magnetic gaps transducer |
| US6795564B2 (en) | 1999-08-20 | 2004-09-21 | Fan Zhang | Energy converter with two coils and two magnetic gaps |
| CN102905214A (en) * | 2011-07-25 | 2013-01-30 | 张凡 | Driver of double-magnet double-magnetic-gap double-coil transducer |
| WO2013013502A1 (en) * | 2011-07-25 | 2013-01-31 | Zhang Fan | Driver for transducer with two magnets, two magnetic gaps and two coils |
| CN114466288A (en) * | 2022-02-18 | 2022-05-10 | 歌尔股份有限公司 | Speaker and electronic apparatus |
| CN114466289A (en) * | 2022-02-18 | 2022-05-10 | 歌尔股份有限公司 | Speaker and electronic apparatus |
| CN114466288B (en) * | 2022-02-18 | 2024-03-12 | 歌尔股份有限公司 | Speaker and electronic device |
| CN114466289B (en) * | 2022-02-18 | 2024-03-12 | 歌尔股份有限公司 | Speaker and electronic device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |