CN1111896A - Method for improving property of loudspeaker and double magnetic field double push-pull loudspeaker - Google Patents
Method for improving property of loudspeaker and double magnetic field double push-pull loudspeaker Download PDFInfo
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- CN1111896A CN1111896A CN 94118095 CN94118095A CN1111896A CN 1111896 A CN1111896 A CN 1111896A CN 94118095 CN94118095 CN 94118095 CN 94118095 A CN94118095 A CN 94118095A CN 1111896 A CN1111896 A CN 1111896A
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Abstract
The characteristic lies in that the double push-pull magnetic field and double push-pull voice coils structure are adopted. Two voice coils may be connected in series or in parallel and locates separately at two magnetic gaps of the double magnetic field structure. The double magnetic field double push-pull loudspeaker is constructed by sticking, welding or connecting the magnetic conducting soft iron, non magnetic conductor support, magnet, double voice coils, voice coil rack, corrugated support, vibrating membrane, dust cover and concurrently high frequency vibrating membrane, elastic side of vibrating membrane and diffuser frame. The advantages are efficient, high fidelity, variable impedance and large bearing power and sound power.
Description
The present invention is a kind of method and double magnetic field double push-pull loudspeaker thereof that improves speaker performance, 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 its voice coil loudspeaker voice coil is in the single magnetic field, 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 are not equipped with product with and 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.
Purpose of the present invention 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 change its impedance operator or output wiring terminal bad adaptability, radiating condition is poor, do not burn voice coil loudspeaker voice coil bear power little etc. shortcoming and problem, study a kind of method that improves speaker performance, 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 present invention realizes by following method and technology scheme and structure technology scheme: method and technology scheme of the present invention be adopt double push-pull magnetic field and series, parallel all can double push-pull voice coil loudspeaker voice coil structure, two magnetic gaps are arranged in two magnetic field structures, two voice coil loudspeaker voice coils are arranged in two magnetic gaps up and down, when the magnetic direction of voice coil loudspeaker voice coil magnetic gap of living in is to point to that " " center ", then the magnetic direction of another voice coil loudspeaker voice coil magnetic gap of living in just just in time points to " outside " mutually on the contrary.Promptly magnetic direction is " pushing away " in a magnetic gap, and then the magnetic direction of another magnetic gap is exactly " drawing ", and the magnetic field of two magnetic gaps forms double push-pull magnetic field jointly, and the double-tone circle in two magnetic gaps can be connected into series, parallel double push-pull circuit up and down; The structure technology scheme of double magnetic field double push-pull loudspeaker of the present invention then can have following several mode: their 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. 3 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 that surrounds, permanent magnet 4 and magnetic conductive soft iron 1,3 and non-magnetic conduction supporting 2 bonding connections of iron; Magnetic conductive soft iron 3 bonds, is welded to connect with non-magnetic conduction supporting member 6 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 6,14 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 the loud speaker shown in Fig. 2,4,5, the outer magnetic conductive soft iron 3 that is with of its magnetic head encases, and can make the unlikely magnetic head outside that leaks into, the magnetic field of permanent magnet 4, has 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 the loud speaker shown in Fig. 4,5, 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 present invention compared with prior art has following advantage and useful effect: (1) enters voice coil loudspeaker voice coil 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, has 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 the loud speaker electro-acoustic conversion efficiency of the invention 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, therefore the loud speaker of the invention has " impedance characteristic ", the impedance of voice coil loudspeaker voice coil parallel pushpull reduces by half, the series connection push-pull impedances doubles, only connect certain voice coil loudspeaker voice coil, then impedance is identical with existing moving-coil or loud speaker; (4) because the double-tone circle double magnetic field double push-pull loudspeaker of the invention, 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 the loadspeaker structure of the invention is simple, 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, and 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 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 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.
Embodiments of the present invention can be as follows: the enforcement of the inventive method is comparatively simple, as long as go to implement by the described method and technology scheme of top specification, just can better implement; Can implement the inventive method by the described several structure technology schemes of top specification; To the enforcement of the loud speaker of the described several frame modes of top specification, make also comparatively simply, it is basic identical with the method that existing coil-moving speaker is manufactured, 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 several loud speakers of double-tone circle double magnetic field double push-pull of the present invention 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, the magnetic head assembly structure of the loud speaker that only draws among the figure, and all the other are partly identical with 8 inch half coil-moving speaker of existing standard.Dimensional units is millimeter among the figure, φ A=74 among the figure; φ B=88; 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 (3)
1, a kind of method that improves speaker performance, it is characterized in that: adopt double push-pull magnetic field and series, parallel all can double push-pull voice coil loudspeaker voice coil structure, upper and lower two voice coil loudspeaker voice coils are arranged in two magnetic gaps of two magnetic field structures, when the magnetic direction sensing center of voice coil loudspeaker voice coil magnetic gap of living in, then the magnetic direction of another voice coil loudspeaker voice coil magnetic gap of living in just just in time points to the outside mutually on the contrary.Promptly magnetic direction is " pushing away " in a magnetic gap, and then the magnetic direction of another magnetic gap is exactly " drawing ", and the magnetic field of two magnetic gaps forms double push-pull magnetic field jointly, and the double-tone circle in two magnetic gaps can be connected into series, parallel double push-pull circuit up and down.
2, a kind of double-tone circle double magnetic field double push-pull loudspeaker, it is characterized in that: they are 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 non-2 bonding connections of magnetic conduction supporting member, 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 are around in speech coil framework 9 and are 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 vibrations and do not collide 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 is bonding with magnetic conductive soft iron 3, be welded to connect.
3, by the described double-tone circle of claim 2 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 that surrounds, permanent magnet 4 and magnetic conductive soft iron 1,3 and 2 bonding connections of non-magnetic conduction supporting member, magnetic conductive soft iron 3 bond with non-magnetic conduction supporting member 6 or are welded to connect; 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 6,14 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94118095 CN1041267C (en) | 1994-11-11 | 1994-11-11 | Method for improving property of loudspeaker and double magnetic field double push-pull loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94118095 CN1041267C (en) | 1994-11-11 | 1994-11-11 | Method for improving property of loudspeaker and double magnetic field double push-pull loudspeaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1111896A true CN1111896A (en) | 1995-11-15 |
| CN1041267C CN1041267C (en) | 1998-12-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94118095 Expired - Fee Related CN1041267C (en) | 1994-11-11 | 1994-11-11 | Method for improving property of loudspeaker and double magnetic field double push-pull loudspeaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1041267C (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101321409B (en) * | 2007-06-06 | 2011-11-30 | 葛锦明 | Double magnetic circuit two-tone ring plate loudspeaker |
| CN102905214A (en) * | 2011-07-25 | 2013-01-30 | 张凡 | Driver of double-magnet double-magnetic-gap double-coil transducer |
| CN103379413A (en) * | 2012-04-12 | 2013-10-30 | 鄂雨松 | Dual-voice-coil dual-magnet moving-coil loudspeaker |
| CN103428615A (en) * | 2013-09-03 | 2013-12-04 | 惠州超声音响有限公司 | Reverse push-pull type speaker unit with novel structure |
| CN104219606A (en) * | 2014-08-15 | 2014-12-17 | 宁波音王电声股份有限公司 | Ultra-long magnetic field moving-coil speaker |
| CN105282662A (en) * | 2015-11-09 | 2016-01-27 | 黄顺君 | Double radial magnetic circuit in isomorphic and identical-effect mode with dual-winding anti-parallel moving coil unit |
| CN105594229A (en) * | 2013-09-27 | 2016-05-18 | Pss比利时股份有限公司 | Loudspeaker |
| CN106454658A (en) * | 2016-10-12 | 2017-02-22 | Tcl通力电子（惠州）有限公司 | Loudspeaker and sound equipment |
| CN109068247A (en) * | 2018-08-07 | 2018-12-21 | 张永春 | Multiple engine array system and loudspeaker |
| CN111328000A (en) * | 2020-04-17 | 2020-06-23 | 广州束合电子科技有限公司 | Double-voice-coil complementary driving type loudspeaker |
| CN114466288A (en) * | 2022-02-18 | 2022-05-10 | 歌尔股份有限公司 | Speaker and electronic apparatus |
| CN117412226A (en) * | 2023-02-21 | 2024-01-16 | 东莞市惟动智能科技有限公司 | Moving coil vibrator with parallel magnetic coils and push-pull nonlinear cancellation function and application thereof |
-
1994
- 1994-11-11 CN CN 94118095 patent/CN1041267C/en not_active Expired - Fee Related
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101321409B (en) * | 2007-06-06 | 2011-11-30 | 葛锦明 | Double magnetic circuit two-tone ring plate loudspeaker |
| CN102905214A (en) * | 2011-07-25 | 2013-01-30 | 张凡 | Driver of double-magnet double-magnetic-gap double-coil transducer |
| CN103379413A (en) * | 2012-04-12 | 2013-10-30 | 鄂雨松 | Dual-voice-coil dual-magnet moving-coil loudspeaker |
| CN103428615A (en) * | 2013-09-03 | 2013-12-04 | 惠州超声音响有限公司 | Reverse push-pull type speaker unit with novel structure |
| CN103428615B (en) * | 2013-09-03 | 2017-01-25 | 惠州超声音响有限公司 | Reverse push-pull type speaker unit with novel structure |
| CN105594229A (en) * | 2013-09-27 | 2016-05-18 | Pss比利时股份有限公司 | Loudspeaker |
| CN105594229B (en) * | 2013-09-27 | 2019-05-28 | Pss比利时股份有限公司 | Loudspeaker |
| CN104219606A (en) * | 2014-08-15 | 2014-12-17 | 宁波音王电声股份有限公司 | Ultra-long magnetic field moving-coil speaker |
| CN105282662B (en) * | 2015-11-09 | 2019-01-22 | 黄顺君 | A kind of anti-simultaneously biradial magnetic circuit of the moving-coil isomorphism with work of and double winding |
| CN105282662A (en) * | 2015-11-09 | 2016-01-27 | 黄顺君 | Double radial magnetic circuit in isomorphic and identical-effect mode with dual-winding anti-parallel moving coil unit |
| CN106454658A (en) * | 2016-10-12 | 2017-02-22 | Tcl通力电子（惠州）有限公司 | Loudspeaker and sound equipment |
| CN109068247A (en) * | 2018-08-07 | 2018-12-21 | 张永春 | Multiple engine array system and loudspeaker |
| CN111328000A (en) * | 2020-04-17 | 2020-06-23 | 广州束合电子科技有限公司 | Double-voice-coil complementary driving type loudspeaker |
| CN114466288A (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 |
| CN117412226A (en) * | 2023-02-21 | 2024-01-16 | 东莞市惟动智能科技有限公司 | Moving coil vibrator with parallel magnetic coils and push-pull nonlinear cancellation function and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1041267C (en) | 1998-12-16 |
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