WO2013010384A1 - 具有对称磁路及对称线圈电路的多驱动器换能器 - Google Patents

具有对称磁路及对称线圈电路的多驱动器换能器 Download PDF

Info

Publication number
WO2013010384A1
WO2013010384A1 PCT/CN2012/000977 CN2012000977W WO2013010384A1 WO 2013010384 A1 WO2013010384 A1 WO 2013010384A1 CN 2012000977 W CN2012000977 W CN 2012000977W WO 2013010384 A1 WO2013010384 A1 WO 2013010384A1
Authority
WO
WIPO (PCT)
Prior art keywords
magnetic
coil
annular
double
bracket
Prior art date
Application number
PCT/CN2012/000977
Other languages
English (en)
French (fr)
Inventor
张凡
Original Assignee
Zhang Fan
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zhang Fan filed Critical Zhang Fan
Priority to CA2885103A priority Critical patent/CA2885103A1/en
Priority to EP12814935.8A priority patent/EP2876897A4/en
Priority to US14/416,025 priority patent/US9774957B2/en
Priority to EA201590217A priority patent/EA201590217A1/ru
Priority to KR1020157004537A priority patent/KR20150058165A/ko
Priority to AU2012286430A priority patent/AU2012286430B2/en
Priority to JP2015521923A priority patent/JP2015522230A/ja
Priority to SG11201501061TA priority patent/SG11201501061TA/en
Publication of WO2013010384A1 publication Critical patent/WO2013010384A1/zh

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06—Loudspeakers
    • H04R9/063—Loudspeakers using a plurality of acoustic drivers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H04R9/025—Magnetic circuit
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H04R9/04—Construction, mounting, or centering of coil
    • 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
    • H04R9/041—Centering
    • H04R9/043—Inner suspension or damper, e.g. spider
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2209/00—Details of transducers of the moving-coil, moving-strip, or moving-wire type covered by H04R9/00 but not provided for in any of its subgroups
    • H04R2209/041—Voice coil arrangements comprising more than one voice coil unit on the same bobbin

Definitions

  • the present invention relates to a multi-driver transducer, and more particularly to a multi-driver transducer having a repulsive magnet and a symmetric magnetic circuit and a symmetrical coil circuit, and is in the field of electrical electroacoustic transducers and electromechanical transducers. Background technique
  • a multi-driver transducer having a repulsive magnet has two or more magnetic gaps, two or more coils, and constitutes two or more movable multi-actuator transducers.
  • a multi-driver transducer with a repulsive magnet is a prior art.
  • the inventors propose PCT/CN98/00306.
  • PCT/CN2008/072668 > PCT/CN2009/070507 and CN99114781.
  • 2, TW88109796 and the like all of which disclose the movement of a pair of or more repulsive magnets.
  • Loop multi-drive electric speaker
  • JP09322294A also proposes a three-drive technology solution with a pair of repulsive magnets, three magnetic gaps and three coils.
  • the advantages of these technical solutions are that the transducers have high efficiency and strong driving force.
  • the disadvantage is that these The transducer still has inductive load characteristics and back EMF, so the total harmonic distortion of the transducer, especially the subwoofer and subwoofer, is very large, and its total harmonic distortion (THD+N) at 1W / lm It is difficult to reach ⁇ 6 % of China's national standards, and often even reach 10 13% or even higher, the content of the invention
  • a first object of the present invention is to overcome the deficiencies of the prior art and the technical biases formed in the field of electroacoustic technology, using the CN200610020317. 7, PCT/CN2008/072668, US2005/0099255A1, CN200510091936. , CN200810169693. 1 , PCT/CN2009/070507 and other technical solutions have two sets of symmetrical magnetic circuit and symmetrical coil circuit of a transducer or a speaker having a resistance load characteristic or a resistance load characteristic, so as to form a pair of phases Rejector magnet and transducer for 4 drives.
  • Each of the four sets of symmetric magnetic circuits and symmetric coil circuits of the transducer can cancel each other's inductance and the induced back electromotive force in the transducer coil circuit (Back Elec t romot) Ive Force), so that the 4-drive transducer achieves unprecedented improvement in total harmonic distortion of the transducer while achieving great driving force and high efficiency.
  • THD+N can reach ⁇ 33 ⁇ 4 and reach the speaker's H i- Fi standard.
  • a second object of the present invention is to overcome the deficiencies of the prior art and the technical prejudice in the field of electroacoustic technology, and to utilize the above-mentioned technical solutions that the inventors have proposed to have a resistance load characteristic or a resistance load characteristic similar to the resistance load characteristic.
  • THD+N expectation value ⁇ 3% strive to achieve The H i-Fi audio standard for speakers.
  • a third object of the present invention is to overcome the deficiencies of the prior art and the technical bias formed in the field of electroacoustic technology.
  • a multi-drive transducer having a symmetric magnetic circuit and a symmetrical coil circuit, comprising a magnetic circuit and a frame and bracket integrally coupled thereto, a coaxial equal-diameter magnetic gap and a coil bobbin inserted into the magnetic gap, which are wound in parallel a wire insulated from each other and constituting a coil, a diaphragm and a planar sounding board coupled to the bobbin and the at least one elastic wave, and the diaphragm or the planar sounding board vibrates by the piston movement of the bobbin, or The diaphragm detects a change in sound pressure of the sound and senses a corresponding audio signal in the coil;
  • the frame is a frame of non-conductive material / or the frame and the bracket are a frame that is fused into a unitary structure;
  • the magnetic circuit has two coaxially mounted upper and lower plates, and the two plates have the same thickness and projected area and are matched with the permanent magnets, one piece or more than one piece of equal thickness
  • An axially magnetized permanent magnet couples the upper plate and the lower plate into an integral core
  • a bracket made of a non-magnetic material the axial portion of which is provided with an inner convex circular platform, the circular platform has a smooth and straight vertical outer circular surface, and the outer side of the vertical outer circular surface is provided with an annular concave a groove, the bottom of the groove of the annular groove is provided with two or more through holes arranged in a hook shape, and the outer side of the groove of the ring 13 constitutes a ring-shaped thin wall of the open mouth of the bracket, and the ring is thin a corresponding axial height of the inner circumferential surface of the wall or a top end portion thereof is provided with a smooth and horizontal horizontal positioning surface and a vertical positioning surface, and the top end portion of the bracket annular thin wall is further provided with an outer side and the frame Matching the connected flanges;
  • the upper plate, the permanent magnet and the lower plate are bonded and fixed on an axial portion of the circular platform surface of the bracket, and one is coaxial with the upper plate, the permanent magnet and the lower plate
  • the installed annular yoke is embedded and/or adhesively fixed on the inner circumferential surface of the bracket ring-shaped thin wall and is fixedly positioned/fixed by the vertical positioning surface and the horizontal positioning surface, and the other One end of the circular shaft hole embedded in the bottom of the frame is coupled to or fixed to the frame, and the two horizontal end faces of the ring-shaped yoke are respectively beyond the upper plate and the lower portion in the axial height
  • the outer pole surface of the pole plate has an H value of 0.5-20 mm, and the inner circumferential surface of the annular cylindrical yoke and the vertical circumferential surface of the upper and lower plates constitute two coaxial equal diameters. a circular magnetic gap in which two lines of coaxial equal diameter are inserted, and the direction of the two coils and the direction of current flowing through the coil are specified, so
  • the bisector X --- X axis of the one-half axial height of the permanent magnet is a horizontal symmetry axis, and the axis of the upper plate, the permanent magnet and the lower plate is perpendicular to the Y--axis axis
  • the symmetry axis, the double magnetic gap double coil driver unit 01 has two sets of magnetic circuits which are bilaterally symmetrical and vertically symmetrical in terms of geometric shape and magnetic properties, and two sets of lines which are bilaterally symmetrical and vertically symmetrical in terms of geometric shape and electrical properties.
  • a circuit stipulates that the winding directions of the two wires are connected in series, and the electromagnetic wire cross-sectional area, the number of coil patterns, the line graph web, the line graph resistance, and the absolute value of the coil inductance of the two coils are The tensions at the time of winding are equal to each other, and the inductances of the two lines and their back electromotive force induced during the reciprocating motion cancel each other by having a phase angle of 180 degrees.
  • Y axis is a vertical axis of symmetry, having the same wire ⁇ skeleton, the same frame and the bracket, the same ring yoke, the same geometric size
  • a multi-drive transducer having a symmetric magnetic circuit and a symmetrical line diagram circuit, comprising a magnetic circuit and a frame and bracket integrally coupled thereto, a coaxial equal-diameter magnetic gap and a coil bobbin inserted into the magnetic gap, which are parallel Winding a wire insulated from each other and forming a coil, a diaphragm and a planar sounding board coupled with the bobbin skeleton and at least one elastic wave, and the diaphragm or the flat sounding board vibrates by the piston movement of the bobbin, or passes The diaphragm detects a change in sound pressure of the sound and senses a corresponding audio signal in the coil;
  • the frame is a frame of non-magnetically permeable material / or the frame and the bracket are fused into a unitary structure;
  • the magnetic circuit has two coaxially mounted upper and lower plates provided with at least one central shaft hole, and the two plates have the same thickness and projected area and are matched with the permanent magnet.
  • An annular magnetized or centrally magnetized permanent magnet having a central shaft hole to join the upper and lower plates to form an integral core;
  • a bracket made of a non-magnetic material the axial portion of which is provided with an inner convex circular platform, and the circular platform is provided with a central shaft hole matched with the upper plate, the permanent magnet and the lower plate
  • the circular platform has a smooth and uniform vertical outer circular surface, and an outer side of the vertical outer circular surface is provided with an annular W groove, and the groove bottom of the annular groove is provided with two or more uniformly arranged through holes.
  • the outer side of the annular groove constitutes a ring-shaped thin wall of the open mouth of the bracket, and the corresponding axial height of the inner circumferential surface of the annular thin wall or the top end portion thereof is provided with a smooth and tidy horizontal positioning surface and vertical positioning
  • the top end portion of the bracket ring-shaped thin wall is further provided with a flange which is unfolded to the outside and is matched with the frame;
  • a fastener made of a non-magnetic material passes through at least one central shaft hole of the upper plate, the permanent magnet and the lower plate and is fastened and bonded to the circular platform surface of the bracket
  • a ring-shaped yoke coaxially mounted with the upper plate, the permanent magnet and the lower plate is embedded and/or adhesively fixed to the inner circumference of the bracket ring-shaped thin wall
  • the surface is bonded and fixed by the vertical positioning surface and the horizontal positioning surface, and the other end is embedded in the circular shaft hole at the bottom of the frame and is coupled or fixed to the frame, the ring tube
  • the inner surface of the annular yoke having an H value of 0.
  • the bisector X--X axis of the one-half axial height of the permanent magnet is a horizontal symmetry axis
  • the Y--Y axis of the central axis of the upper plate, the permanent magnet and the lower plate is a vertical symmetry axis
  • the double magnetic gap double-turn ⁇ driver has two sets of magnetic circuits which are bilaterally symmetrical and vertically symmetrical in terms of geometric shape and magnetic properties
  • two sets of wire ⁇ circuits which are bilaterally symmetrical and vertically symmetrical in terms of geometric shape and electrical properties stipulates that the winding directions of the two line diagrams connected in series are exactly opposite, two The cross-sectional area of the magnet wire of the coil, the number of coil turns, the coil coil, the coil resistance, the absolute value of the coil inductance and the tension at the time of winding are equal to each other, and the inductance of the two coils and their reciprocating motion
  • the induced back electromotive force (Back E ec t romo ti
  • an ultra-high sensitivity high-fidelity internal magnetic multi-driver transducer having one or more pairs of repulsive magnets and a symmetric magnetic circuit and a symmetrical coil circuit is constructed.
  • a multi-drive transducer having a symmetric magnetic circuit and a symmetrical coil circuit, comprising a magnetic circuit and a frame and bracket integrally coupled thereto, a coaxial equal-diameter magnetic gap and a coil skeleton inserted into the magnetic gap, which are parallel Winding a wire insulated from each other and forming a coil, a diaphragm and a planar sounding board coupled to the bobbin and the at least one elastic wave, and the diaphragm or the flat sounding board vibrates by the piston movement of the line skeleton, or A sound pressure change of the sound is detected by the diaphragm and a corresponding audio signal is sensed in the line.
  • the frame is a frame of non-magnetically permeable material / or the frame and the bracket are fused into a unitary structure;
  • the magnetic circuit has two coaxially mounted annular upper plates and lower plates, the two plates having the same thickness and projected area and matching with the permanent magnets, one ring or more An equal-width uniform axially magnetized permanent magnet couples the upper plate and the lower plate into an integral core;
  • a bracket made of a non-magnetic material the axial portion of which is provided with an inner convex annular platform, and the axial portion of the circular platform is further provided with an inner convex column body, and the circular platform has a smooth and tidy vertical outer circular surface, the outer side of the vertical outer 31 surface is provided with an annular G3 groove, and the groove bottom of the annular groove is provided with two or more uniformly arranged through holes, and the outer side of the annular groove is formed a horizontal positioning surface of the bracket and an open annular thin wall, wherein a corresponding axial height of the annular cylindrical inner circumferential surface is provided with a vertical positioning surface, and the top end of the bracket ring-shaped thin wall
  • the portion is further provided with a flange that is unfolded to the outside and is matched with the frame;
  • the upper plate, the permanent magnet and the lower plate are embedded and/or adhesively fixed to the inner peripheral surface of the annular thin wall of the bracket, and the upper plate, the permanent magnet and the lower plate a coaxially mounted ring-shaped yoke that is embedded and/or adhesively fixed to the inner convex columnar body of the bracket and horizontally positioned by the annular platform surface, two of the annular cylindrical yokes
  • the upper end surface of the annular yoke and the upper plate and the upper plate and the outer plate of the upper and lower plates respectively have an H value of 0.5 to 20 mm.
  • Two coaxial equal-diameter annular magnetic gaps are formed between the vertical peripheral surfaces of the lower plate, and two line patterns of coaxial equal diameter are inserted into the annular magnetic gap to define the winding directions of the two line patterns and flow through the coil Current direction, Causing the coil to generate electric power F in the same direction at the same working moment;
  • the bisector X--X axis of the one-half axial height of the permanent magnet is a horizontal symmetry axis
  • the Y--Y axis of the central axis of the upper plate, the permanent magnet and the lower plate is a vertical symmetry axis
  • the double magnetic gap double coil driver has two sets of magnetic circuits which are bilaterally symmetrical and vertically symmetrical in terms of geometric shape and magnetic properties, and two sets of coil circuits which are bilaterally symmetrical and vertically symmetrical in terms of geometric shape and electrical performance, It is stipulated that the winding directions of the two coils connected in series are exactly opposite, the electromagnetic wire cross-sectional area, the number of coil turns, the coil width, the coil resistance, the absolute value of the coil inductance and the winding state of the two coils The tensions are equal to each other, and the inductance of the two coils and the back electromotive force induced during the reciprocating motion cancel each other by having a phase angle of 180 degrees, thereby forming a resist
  • a multi-driver transducer having a symmetric magnetic circuit and a symmetrical coil circuit, which is made of the non-magnetic material bonded to the outer surface of the lower plate of the two sets of double-magnetic double-coil driver unit 01 / or unit 02 a coaxial disk-shaped/or annular spacer having a thickness that ensures that the two sets of double-magnetic double-cable driver unit 01 / or unit 02 having repulsive magnetic properties still have geometry and Two sets of magnetic circuits with bilateral magnetic symmetry and upper and lower symmetry, and two sets of clew circuits with bilateral symmetry and upper and lower symmetry in terms of geometric shape and electrical performance.
  • a multi-driver transducer having a symmetric magnetic circuit and a symmetrical coil yoke, wherein the annular yoke can be coaxial with the vertical symmetry axis Y --- Y axis by two equal stages or more than two stages of axial direction Ring-shaped yokes of equal height to each other, and one or more of the coaxial disk-shaped/circular partitions made of a non-magnetic material having a suitable thickness are bonded together as a whole.
  • a multi-driver transducer having a symmetric magnetic circuit and a symmetrical line diagram circuit, wherein the bracket annular groove is provided with a discharge magnetic circuit and a thermal energy radiated from the coil circuit and a device for reducing the air damping of the transducer vibration system
  • the penetrating pores each of the penetrating pores having as large a projected area as possible and equal to each other when the bracket geometry and structural strength permit, the center or center line of the penetrating pores being disposed at
  • a multi-drive transducer having a symmetric magnetic circuit and a symmetrical coil circuit
  • the bottom of the bracket is provided with a flange
  • one end of a frame made of a non-magnetic material is coupled to the flange, the frame
  • the shaft portion of the larger flange is provided with an inner convex platform, and an axially convex portion is disposed at an axial center portion thereof, and the annular cylindrical shape a yoke is embedded and/or adhesively fixed to the inner convex columnar body of the flange, thereby forming the annular magnetic gap of coaxial equal diameter, and an elastic wave is bonded and fixed to the frame
  • the frame and the flange are provided with a symmetrical heat dissipation and ventilation space.
  • the large axial thrust provided by the symmetrical magnetic circuit and the symmetrical coil circuit multi-driver principle of the present invention simultaneously eliminates the back electromotive force of the transducer, and enables the speaker, especially the bass or subwoofer, to obtain an ultra-efficient output sound pressure SPL value.
  • the transducer has a transparent magnetic circuit front and rear cavity and a good heat dissipation system, which can greatly improve the transient response characteristics and power compression of the speaker.
  • Fig. 1 is a longitudinal sectional view showing a prior art embodiment 1 and a modification thereof.
  • Figure 2 shows a longitudinal section of a prior art embodiment 2 and its improvement.
  • Fig. 3 is a longitudinal sectional view showing the first embodiment of the internal magnetic multi-drive transducer of the present invention.
  • Fig. 4 is a longitudinal sectional view showing the second embodiment of the inner magnetic multi-drive transducer of the present invention.
  • Fig. 5 is a longitudinal sectional view showing the third embodiment of the internal magnetic multi-drive transducer of the present invention.
  • Figure 6 shows a longitudinal section of the outer magnetic multi-drive transducer embodiment of the present invention.
  • Figure 7 shows a longitudinal section of the outer magnetic multi-drive transducer embodiment 2 of the present invention.
  • Figure 8 shows a longitudinal section of the outer magnetic multi-drive transducer embodiment 3 of the present invention.
  • Fig. 9 is a longitudinal sectional view showing the fourth embodiment of the outer magnetic multi-drive transducer of the present invention.
  • the main components of the present invention correspond to the labels as follows:
  • Non-magnetic pressure plate 175 - 675 Non-magnetic nut
  • Figure 1 is a longitudinal sectional view showing a prior art embodiment 1 and a modification thereof.
  • FIG. 6 This is a partial cross-sectional view of the magnetic core of the embodiment of Fig. 6 disclosed by the inventors of the present invention (including the coil 109 and the bobbin 107) as disclosed in PCT/CN2008/072668.
  • the upper plate 103A and the lower plate 103B are two.
  • the block thickness is equal - the projection area is equal, the coaxially mounted disk-shaped flat plate, and a matching neodymium iron boron magnet 102 is bonded between the upper plate 103A and the lower plate 103B ..., the ring-shaped magnetic
  • the yoke 113 is disposed on the axial center of the magnetic core.
  • the inner circumferential surface of the element 113 and the vertical circumferential surfaces of the elements 103A and 103B constitute two coaxial magnetic gaps 110A and 110B of equal diameter.
  • the coil bobbin 107 and the coaxially mounted two coils 109A and 109B are inserted into the annular magnetic gap, the coil 109A is set to rotate clockwise, and the coil 109B is wound counterclockwise (or vice versa).
  • the electromagnetic wire cross-sectional area of the coil 109A and the coil 109B, the number of coil turns, the coil volume, the coil resistance, the absolute value of the coil inductance, and the tension at the time of winding are equal to each other, and are connected in series to form a coil such as PCT/CN2008/ 072668 is shown in FIG.
  • the bisector Z--Z axis is a horizontal axis of symmetry, with the permanent magnet 102
  • the bisector of the one-half of the axial height X --- the X axis is the horizontal axis of symmetry
  • the two groups of the element 103A, the element 102 and the Y--axis of the element 103B are perpendicular to the axis of symmetry in geometry and magnetic
  • This embodiment is a set of double magnetic gap two-line in-line magnetic transducer driver unit 01 having a resistance load characteristic or a resistance load characteristic and having ultra high sensitivity and high fidelity quality.
  • PCT/CN2008/072668, Fig. 6, Fig. 9 to Fig. 12, Fig. 20, Fig. 21 and CN200510091936.0 and US2005/0099255A1 which have been disclosed by the present inventors and are not repeated.
  • the present invention provides a new improvement to the above prior art in order to enable the transducer to obtain the characteristics of the symmetric magnetic circuit and the symmetrical coil circuit as described in the prior art such as PCT/CN2008/072668 during dynamic operation.
  • Fig. 2 is a longitudinal sectional view showing a prior art embodiment 2 and a modification thereof.
  • FIG. 5 This is a partial cross-sectional view of the magnetic core of the embodiment of Fig. 5 disclosed in PCT/CN2008/072668, which is hereby incorporated by reference by the inventors, including the coil 209 and the bobbin 207.
  • the upper plate 203A and the lower plate 203B are two circular plates of equal thickness and equal projection area, coaxially mounted, and a matching neodymium iron boron magnet 202 is bonded to the upper plate 203A and the lower plate 203B.
  • a matching neodymium iron boron magnet 202 is bonded to the upper plate 203A and the lower plate 203B.
  • Between the ring yokes 21 3 is placed on the axial center of the above-mentioned magnetic core.
  • the outer peripheral surface of the element 21 3 and the vertical peripheral surfaces of the elements 203A and 203B constitute two coaxial equal diameters.
  • the annular magnetic gaps 210A and 210B in which the bobbin 207 and the coaxially mounted two coils 209A and 209B are inserted, the set line diagram 209A is clockwise, and the coil 209B is counterclockwise. (vice versa).
  • the electromagnetic wire cross-sectional area of the coil 209A and the coil 209B, the coil coil, the coil coil, the coil resistance, the absolute value of the coil inductance, and the tension at the time of winding are equal to each other, and are connected in series to form a coil such as PCT/CN2008/ 072668 is shown in FIG.
  • the permanent magnet 202 is The bisector of one of the axial heights X --- the X axis is the horizontal axis of symmetry, and the two sets of the y - - Y axis of the element 203A, the element 202 and the element 203B are perpendicular to the axis of symmetry in terms of geometry and magnetic properties.
  • Up and down, left and right symmetrical magnetic circuits, and wire-wound circuits that are vertically and horizontally symmetric in terms of geometry and electrical performance.
  • This embodiment is a set of dual magnetic gap two-line diagram external magnetic transducer driver units 02 having resistive load characteristics or approximately resistive load characteristics and having ultra-high sensitivity and high fidelity quality.
  • PCT/CN2008/072668 Figure 5, Figure 9, Figure 12, Figure 20, Figure 21 and CN200610020317. The description of the specification is not repeated.
  • the present invention proposes a new improvement to the above prior art.
  • the bisector Z--Z axis of the upper axial plate 103A and the lower plate 103B and the one-half axial height of the line graph 109A and the line graph 109B are the same horizontal symmetry axis, thereby making the present invention
  • the embodiment can obtain the best upper and lower, left and right symmetrical magnetic circuit and upper and lower symmetrical line graph circuit characteristics.
  • Fig. 3 is a longitudinal sectional view showing the first embodiment of the internal magnetic multi-drive transducer of the present invention.
  • Two sets of identical double-magnetic double-coil inner magnetic drive unit 01, the structure and working principle of each set of double-magnetic double-line inner magnetic transducer driver unit 01 are completely described with the description of the embodiment of Fig. 1 Again, this embodiment will not be repeated.
  • the frame 101 is an aluminum alloy frame, and a shaft hole is arranged at the bottom thereof to match the magnetic core and the sound map skeleton 107 of the speaker.
  • the bracket 181 made of an aluminum alloy has an inner convex circle at its axial center.
  • the platform 1118 has a smooth and uniform vertical outer circular surface, and an outer side of the vertical outer circular surface is provided with an annular C3 groove 163, and the groove bottom of the annular groove 163 is provided with two or more hooks.
  • the outer side of the annular groove 163 constitutes an open annular thin wall of the bracket 181, and the corresponding axial height of the inner circumferential surface thereof is provided with a smooth and tidy horizontal positioning surface 1810 and a vertical positioning surface.
  • the top end of the annular thin wall of the bracket 181 is further provided with a flange that is outwardly deployed to match the frame 101, and the flange is provided with a plurality of evenly arranged screw holes, which are Frame 101 and bracket The 181 link became a whole.
  • a dual magnetic gap double coil inner magnetic 4 driver speaker core with a pair of repulsive magnets Applying an adhesive on the outer horizontal surface 1180 of the inner convex circular platform 1118, and bonding the magnetic core to the same Y--Y axis of the inner convex circular platform 1118 and the frame 101 and the bracket 181 The vertical axis of symmetry of the transducer.
  • a ring-shaped yoke 113 coaxially mounted with the above-mentioned magnetic core is embedded and/or adhesively fixed from the top to the bottom on the inner peripheral surface of the annular thin wall of the bracket 181 and is vertically positioned to the surface 1820 and horizontally
  • the positioning surface 1810 is adhesively positioned and/or mated, and the other end is embedded in the circular shaft hole at the bottom of the frame 101 and is matched or coupled with the frame 101.
  • the two outer horizontal end faces of the annular yoke 113 are at an axial height.
  • the upper outer surface of the upper plate 103A exceeds the H value of 0.5-20 mm, the inner circumferential surface of the annular yoke 113 and the centers of the upper plate 103A, the permanent magnet 102, and the lower plate 103B.
  • the axis Y--Y axis is a vertical symmetry axis, and four coaxial equal-diameter ring magnets are formed between the vertical peripheral surface of the two upper plates 103A and the two lower plates 103B and the inner peripheral surface of the annular yoke 113.
  • the bisector W --- W axis which is one-half of the axial height of the disk-shaped spacer 1020 is a horizontal symmetry axis
  • the central axis Y of the upper plate 103A, the permanent magnet 102 and the lower plate 103B - -- Y is a vertical symmetry axis with a pair of repulsive magnets and two sets of magnetic circuits with bilateral symmetry and upper and lower symmetry in terms of geometry and magnetic properties, and two sets of bilateral symmetry and upper and lower symmetry in terms of geometry and electrical properties.
  • Coil circuit As described in the description of the embodiment of Fig.
  • the double magnetic gap double coil inner magnetic actuator unit 01 constitutes an inner magnetic type having a pair of repulsive magnets and a resistance load characteristic or a resistance load characteristic and a counter electromotive force in each set of series coil circuits are canceled each other.
  • double magnetic gap double turn drive unit 01 have the same central axis Y --- Y as the vertical axis of symmetry, have the same coil bobbin, the same frame and the bracket, the same ring shape a yoke, four or more coaxial toroidal magnetic gaps 110 having a coaxial diameter and four or more coaxial coils 109 having a coaxial diameter, thereby forming one or more pairs of phases Internal magnetic multi-driver transducer with repulsion magnet and symmetrical magnetic circuit and symmetrical coil ⁇ circuit.
  • the thickness of the disc-shaped/circular spacer 1020 made of a non-magnetically rigid material the thickness of the upper and lower plates 103A and 103B, and the thickness of the permanent magnet 102 and the magnetic energy product thereof. closely related. Appropriate thick Degree means that only at this thickness, the influence of the upper and lower symmetry characteristics of the two sets of symmetric magnetic circuits and the two sets of symmetric coil circuits of each set of double magnetic gap two-line diagram driver unit 01 of this embodiment is negligible, and is allowed Within the tolerance range.
  • the annular groove of the bracket 181 is provided with a circle of discharge magnetic circuit and thermal energy emitted by the coil circuit and a through hole 182 for reducing the air damping of the transducer vibration system, when the geometry and structural strength of the bracket 181 When permitted, each of the penetrating vents 182 has as large a projected area as possible and is equal to each other.
  • the center or center line of all the penetrating air holes 182 arranged in the annular array of the present invention are disposed on the bobbin 1/07.
  • the circumferential circle of the projection circle of the coaxial equal-diameter coil ensures that the coil circuit still maintains the necessary bilateral symmetry state when the transducer vibration system is vibrating up and down.
  • Fig. 4 is a longitudinal sectional view showing the second embodiment of the internal magnetic multi-driver transducer of the present invention.
  • the upper plate 103A and the lower plate 103B are four annular plates, and the permanent magnet 102 is also provided with a shaft hole that matches the upper and lower plates.
  • a through hole/or through screw hole is further disposed in the axial center of the convex platform 1 1 18 in the bracket, and when the two sets of double magnetic gap double coil inner magnetic actuator unit 01 described in FIG. 1 is assembled, A non-magnetic material fastener 1 71 0 such as l Cr l 8N i 9T i stainless steel bolts are inserted into the non-magnetic pad from top to bottom.
  • Figure 172 upper plate 103A, permanent magnet 102, lower plate 103B and non One or more pairs of the present embodiment of the magnetically toroidal annular spacer 1020 in all of the shaft holes that match the component 1710, by means of a non-magnetic nut 175 embedded in the inner W-axis bore 170 at the bottom of the bracket 181
  • the magnetic core of the inner magnetic actuator unit 01 of the repulsion magnet can be firmly fixed to the bracket as a whole by the force of the adhesive and the fastener at the same time.
  • a screw hole 1751 may be disposed at the axial center of the inner convex platform 11 18 of the bracket 181 and the magnetic core and the bracket may be used by a non-magnetic fastening bolt 1710. The connection becomes a whole.
  • Figure 5 is a longitudinal sectional view showing the embodiment 3 of the internal magnetic multi-driver transducer of the present invention.
  • a ring-shaped yoke 113 is changed into two independent, coaxial, contoured ring-shaped yokes 113, and a matching non-magnetically conductive is added.
  • the annular spacer 1021 bonds the two annular yokes 113 as a whole...
  • the structure and working principle of the embodiment are the same as those of the embodiment of FIG. The description of the invention will not be repeated.
  • Figure 6 is a longitudinal sectional view showing the outer magnetic multi-drive transducer embodiment of the present invention.
  • the two coaxially mounted upper plate 203A and lower plate 203B are circular plates, the plates having the same
  • the structure and working principle of 02 are exactly the same as those described in the description of the embodiment of Fig. 2, and the embodiment is not repeated.
  • the frame 201 is an aluminum alloy frame having a shaft hole at the bottom thereof to match the core and voice coil skeleton 207 of the speaker.
  • a bracket 281 made of an aluminum alloy is provided with an inner convex circular platform 21 1 8 at an axial portion thereof, and an inner convex column 212 is disposed at an axial center portion of the circular platform, and an outer side of the base is provided therein.
  • the convex platform surface 21 1 has a smooth and uniform vertical outer circular surface on the outer side thereof, and an annular groove 263 is disposed on the outer side of the vertical outer circular surface, and the groove bottom of the annular groove 263 is provided with two or more hooks
  • the outer side of the annular groove 263 constitutes an open annular thin wall of the bracket 281, and the corresponding axial height of the inner circumferential surface thereof is provided with a smooth and tidy horizontal positioning surface 281 0 and a vertical positioning surface.
  • a top end portion of the annular wall of the bracket 281 is further provided with a flange that is outwardly deployed and matched with the frame 201.
  • the flange is provided with a plurality of screw holes arranged in a hook shape, and the screw 201 3
  • the frame 201 is coupled to the bracket 281 as a whole.
  • a ring-shaped yoke 21 3 coaxially mounted with the magnetic core is embedded and/or adhesively fixed from the top to the bottom of the inner convex column 212 of the bracket 281 and is adhered by the inner land surface 211
  • the knot is positioned/or fixed.
  • the outer lateral end faces of the annular yokes 21 3 are respectively beyond the outer pole faces of the two upper plates 203 ⁇ at an axial height of 0.5 to 20 mm, and the inner yokes 21 3 are inside.
  • the circumferential surface is perpendicular to the central axis of the upper plate 203, the permanent magnet 202, and the lower plate 203, and the vertical axis of the two upper plates 203 and the lower plates 203.
  • annular magnetic gaps 210 of coaxial diameter are formed between the outer peripheral surfaces of the cylindrical yoke 213, and four coils 209 of coaxial equal diameter are inserted into the annular magnetic gap 210, and each set of double magnetic gap double coil outer magnetic field is defined.
  • the winding direction of the two coils 209 of the driver unit 02 and the current flowing through the coil cause the coil 209 to generate the electric power F in the same direction at the same working moment, thereby forming a one-half axis of the disk-shaped partition 2020
  • the height bisector W --- W axis is a horizontal symmetry axis
  • the central axis Y - - Y of the upper plate 203A, the permanent magnet 202 and the lower plate 203B is a vertical symmetry axis and has a pair of repulsive magnets and Two sets of magnetic circuits with bilateral symmetry and upper and lower symmetry in terms of geometry and magnetic properties, as well as geometric and electrical properties Two sets of coil circuits of right symmetry and up and down symmetry.
  • the winding directions of the two line diagrams 209 of each set of symmetrical line ⁇ circuits are reversed, and the two coils are opposite.
  • the cross-sectional area of the electromagnetic wire, the number of coil turns, the coil wrap, the resistance of the wire S, the absolute value of the inductance of the line graph, and the tension at the time of winding are equal to each other, and finally the two sets of symmetrical line graph series circuits are connected in parallel (
  • the two sets of double magnetic gap double coil outer magnetic drive unit 02 is configured to have a pair of repulsive magnets and resistance load characteristics or approximate resistance load characteristics and each group of series coil circuits
  • the external electromotive force is canceled by the external magnetic 4 driver speaker..., and so on, in the second set of double magnetic gap double lines
  • the outer plane of the upper plate 203A of the circle driver unit 02 is then bonded to a coaxial disk-shaped/or annular spacer 2020 of a non-magnetically rigid
  • the double magnetic gap double coil driver unit 02 having the repulsive type magnet, the first group, the second group, the third group, the double magnetic gap double coil driver unit 02 have the same central axis as the vertical axis of symmetry , having the same coil bobbin, the same frame and the bracket, the same ring-shaped yoke, 4/or more than 6 coaxial equal-diameter annular magnetic gaps 21 and 4 matching / or more than six coaxial coils 209 of equal diameter, thereby forming an external magnetic multi-actuator transducer having a pair or a pair of repulsive magnets and a symmetric magnetic circuit and a symmetrical coil circuit.
  • the thickness of the disk-shaped/circular spacer 2020 made of a non-magnetically rigid material is closely related to the thickness of the upper plate 203A and the lower plate 203B and the thickness and magnetic energy product of the permanent magnet 202. .
  • the proper thickness means that only the thickness of the two sets of symmetric magnetic circuits and the two sets of symmetrical line diagram circuits of each set of double magnetic gap double coil driver unit 02 of this embodiment are affected by the upper and lower symmetry characteristics of the present embodiment. , and within the allowable tolerance range.
  • Fig. 7 is a longitudinal sectional view showing the second embodiment of the outer magnetic multi-drive transducer of the present invention.
  • a ring-shaped yoke 21 3 is changed into two independent, coaxial, contoured ring-shaped yokes 213, and a matching non-guide is added.
  • the magnetic annular spacer 2021 bonds the two annular yokes 213 as a whole...
  • the structure and the working principle of the embodiment 1 are completely the same as those of the embodiment 1 of FIG. 6, and the present invention does not. Repeat the description.
  • Fig. 8 is a longitudinal sectional view showing the third embodiment of the outer magnetic multi-drive transducer of the present invention.
  • the illustrated plates 203A, 203B are plates having two shaft holes of different diameters, whereby the axial distance from the Z-axis to the Z-axis is much larger than that of the embodiment 2 shown in Fig. 6. That is to say, this embodiment is particularly suitable for use in cases with a long linear stroke.
  • the other parts are identical to the description of the embodiment of Fig. 6.
  • Fig. 9 is a longitudinal sectional view showing the fourth embodiment of the outer magnetic multi-driver transducer of the present invention.
  • the lower end portion of the bracket 281 has a central shaft hole matched with the bobbin 207, and the outer surface thereof is matched with a frame 201 1 coupled thereto, and the outer plane of the inverted frame 201 1 is provided with a non-magnetically rigid material.
  • the circular plate with flanges 2012 has a central convex portion 2118 at its central axial center, as shown in Fig.
  • a ring mounted coaxially with the Y--Y axis
  • the outer peripheral surface of the yoke 211 and the vertical peripheral surface of the electrode plates 203A and 203B form four or more annular magnetic gaps 210 of coaxial equal diameter, thereby constituting the line skeleton 207.
  • the radial yaw is better controlled by the upper and lower double-elastic multi-driver implementation.

Abstract

具有对称磁路及对称线圈电路的多驱动器换能器，通过一块或一块以上非导磁材料制成的圓形或圓环形隔板，将二组或二组以上双磁隙双线圈驱动器单元01/或02粘结成为一个整体磁芯。一个或二个嵌入安装在所述托架敞口环筒薄壁的环筒状磁轭的内周面或外周面与所述磁芯的上极板和下极板的垂直周面间构成4个或4个以上同轴等径的环形磁隙，插入4个或4个以上同轴等径的线圈，规定线圈的绕向、连接方式及必要的技术特征，由此构成具有一对或一对以上相斥型磁铁和对称磁路及对称线圈电路的多驱动器换能器。所述换能器在工作过程中感应得到的反电动势及电感被相互抵消，该换能器具有电阻负栽特性或近似于电阻负载特性，同时具有超高灵敏度、高解析力和高保真品质。

Description

具有对称磁路及对称线圈电路的多驱动器换能器 技术领域
本发明涉及一种多驱动器换能器， 特别涉及具有相斥型磁铁和对称磁路及对称线圈电 路的多驱动器换能器， 属于电学的电声换能器及机电换能器领域。 背景技术
主流的传统电声换能器和机电换能器只有一个磁隙、 一个线图并构成一个动圈式驱动 器。 具有相斥型磁铁的多驱动器换能器则具有二个或二个以上磁隙、 二个或二个以上线圈 并构成二个或二个以上动圏式多驱动器换能器。
具有相斥型磁铁的多驱动器换能器是一种已有技术。 例如， 本发明人提出的 PCT/CN98/ 00306. PCT/CN2008/072668 > PCT/CN2009/070507和 CN99114781. 2、 TW88109796 等技术方案， 均揭示了具有一对或一对以上相斥型磁铁的动圈式多驱动器电动扬声器。
JP09322294A也提出了具有一对相斥型磁铁、 三个磁隙和三个线圈的三驱动器技术方案. 这 些技术方案的优点是换能器具有高的效率和强大的驱动力， 不足之处是这些换能器仍然具 有电感负栽特性和反电动势， 因此换能器特别是重低音扬声器和超重低音扬声器的总谐波 失真很大， 其在 1W /lm时的总谐波失真（THD+N)很难达到 < 6 %的中国国家标准， 甚至往往 达到 10 13%乃至更高一些， 发明内容
本发明的第一个目的是克服已有技术的不足之处和电声技术领域形成的技术偏见， 利 用本发明人已经提出的 CN200610020317. 7、 PCT/CN2008/072668 , US2005/0099255A1、 CN200510091936. 0、 CN200810169693. 1 , PCT/CN2009/070507等技术方案中具有电阻负栽特 性或近似于电阻负栽特性的换能器或扬声器的二组对称磁路和对称线圈电路， 使之构成具 有一对相斥型磁铁和 4个驱动器的换能器。 该换能器的 4组对称磁路和对称线圈电路的每 二组对称磁路和对称线圈电路可以互相抵消该换能器线圈电路中自身的电感量和感应得到 的反电动势（Back Elec t romot ive Force) , 从而使该 4驱动器换能器在获得巨大驱动力和超 高效率的同时使换能器的总谐波失真得到前所未有的改善， THD+N 可以 < 3¾ 并达到扬声器 的 H i- Fi标准。
本发明的第二个目的是克服已有技术的不足之处及电声技术领域的技术偏见， 利用本发明 人已经提出的上述技术方案中具有电阻负栽特性或近似于电阻负载特性的换能器或扬声器 的 6个或 6 个以上单独安装的二组对称磁路和对称线圈电路， 使之构成具有一对以上相斥 型磁铁和 6驱动器或更多偶数驱动器的换能器， 从而使该 6个 /或 8个 /或 10个驱动器换能 器在获得更加巨大驱动力和超高效率的同时使换能器的总谐波失真得到前所未有的改善， THD+N期望值 < 3% ， 力争达到扬声器的 H i- Fi音响标准。
本发明的第三个目的是克服已有技术的不足之处及电声技术领域形成的技术偏见， 通 过大幅度增加扬声器线性行程同时提供超大驱动力的技术方案， 使小口径扬声器例如 2~3 英寸口径扬声器的 Fo下潜至更低频率并获得优秀的低音还原效果。
本发明的 Θ的是这样实现的：
具有对称磁路及对称线圈电路的多驱动器换能器， 包括磁路及与之连结成一体的框架 和托架， 同轴等径的磁隙和一个插入磁隙的线圈骨架， 其上平行缠绕彼此绝缘的电线并构 成线圈， 与线圈骨架和至少一个弹波连结在一起的振膜 /或平面发声板， 通过线圈骨架的活 塞运动带动所述振膜或平面发声板振动发声， 或者通过所述振膜检测声音的声压变化并在 线圈中感应到相应的音频信号；
所述框架是一个非导材料构成的框架 /或者所述框架和所述托架是融合成为一个整体 结构的框架；
所述磁路具有二块同轴安装的上极板和下极板， 二块所述极板具有相同的厚度和投影 面积且与所述永磁铁匹配， 一块 /或一块以上等厚均布的轴向充磁的永磁铁将所述上极板和 下极板联结成为一个整体磁芯；
一个非导磁材料构成的托架， 其轴心部位设有一个内凸的圆形平台， 所述圓形平台具 有光滑整齐的垂直外圓面， 所述垂直外圆面的外側设有环形凹槽， 所述环形凹槽的槽底设 有二个以上均勾布置的穿透气孔， 所述环形 13槽的外侧构成所述托架敞口的环筒状薄壁， 所述环筒状薄壁内周面的相应轴向高度或其顶端部位设有光滑整齐的水平定位面和垂直定 位面， 所述托架环筒状薄壁的顶端部位还设有一个向外側展开的与所述框架匹配联接的法 兰盘；
所述上极板、 永磁铁和下极板被粘结固定在所述托架的所述圓形平台面的轴心部位上， 一个与所述上极板、 永磁铁和下极板同轴安装的环筒状磁轭， 嵌入安装 /或粘结固定在所述 托架环筒状薄壁的内周面并被所述垂直定位面和水平定位面粘结定位 /或配合固定， 其另一 端嵌入所述框架底部的所述圆形轴孔且与所述框架联结或粘接固定， 所述环筒状磁轭的二 个水平端面在轴向高度上分别超出所述上极板和下极板的外侧极面有 0. 5-20毫米的 H值， 所述环筒状磁轭的内周面与所述上极板和下极板的垂直周面间构成二个同轴等径的环形磁 隙， 在所述环形磁隙内插入同轴等径的二个线图， 规定二个线團的绕向及流经线圈的电流 方向， 使所述线圏在同一工作瞬间产生同一方向的电动力 F;
以所述永磁铁二分之一轴向高度的等分线 X --- X 轴线为水平对称轴， 以所述上极板、 永 磁铁和下极板的中心轴线 Y—- Y轴线为垂直对称轴， 所述双磁隙双线團驱动器单元 01具有 在几何形状和磁性能方面左右对称及上下对称的二组磁路以及在几何形状和电性能方面左 右对称及上下对称的二组线圏电路， 规定二个所述线囷串联连接后的绕向刚好相反， 二个 所述线圈的电磁线横截面积、 线圈图数、 线图卷幅、 线图电阻、 线圈电感量的绝对值和绕 线时的张力彼此相等， 二个所述线图的电感量及其在往复运动过程中感应到的反电动势 (Back E l ec t romo t i ve Force)因具有 180度相位角而互相抵消， 由此构成具有电阻负栽特性 或近似于电阻负载特性的第一组双磁隙双线圈内磁式驱动器单元 01；
在所述第一组双磁隙双线圈内磁式驱动器单元 01的下极板外側平面粘结一块具有适当 厚度的非导磁材料制成的 |5]轴的圆片形 / 或圓环形隔板， 在所述圃片形 / 或圓环形隔板的 另外一倒平面又与所述换能器的第二组双磁隙双线圈驱动器单元 01的下极板粘结固定， 由 此形成二组具有相斥型磁鉄的双磁隙双线團内磁式驱动器单元 01， 依此类推， 在第二组双 磁隙双线圈内磁式驱动器单元 01的上极板外侧平面再粘结一块具有适当厚度的非导磁材料 制成的同轴的圓片形 / 或圆环形隔板， 在所述圆片形 / 或圆环形隔板的另外一侧平面又与 所述换能器的第三组双磁隙双线圈驱动器的上极板粘结固定， 所述第一组、 第二组、 第三 组……双磁隙双线图驱动器单元 01以所述同一; f艮中心轴线 Y --- Y轴线为垂直对称轴线， 具 有同一个所述线圏骨架、 同一个所述框架和所述托架、 同一个所述环筒状磁轭、 相同几何 尺寸的所述圆片形 /或圆环形隔板、 4个 / 或 6个以上所述环形磁隙及与之匹配的 4个 /或 6 个以上所述线图， 由此构成具有一对或一对以上相斥型磁铁和对称磁路及对称线圈电路的 超高灵敏度高保真内磁式多驱动器换能器。
具有对称磁路及对称线图电路的多驱动器换能器， 包括磁路及与之连结成一体的框架 和托架， 同轴等径的磁隙和一个插入磁隙的线圈骨架， 其上平行缠绕彼此绝缘的电线并构 成线圈， 与线圏骨架和至少一个弹波连结在一起的振膜 /或平面发声板， 通过线圈骨架的活 塞运动带动所述振膜或平面发声板振动发声， 或者通过所述振膜检测声音的声压变化并在 线圈中感应到相应的音频信号；
所述框架是一个非导磁材料构成的框架 /或者所述框架和所述托架是融合成为一个整 体结构的框架；
所述磁路具有二块同轴安装的设有至少一个中央轴孔的上极板和下极板， 二块所述极 板具有相同的厚度和投影面积且与所述永磁铁匹配，一块设有中央轴孔的圓环形 /或一块以 上等厚均布的轴向充磁的永磁铁将所述上极板和下极板联结成为一个整体磁芯；
一个非导磁材料构成的托架， 其轴心部位设有一个内凸的圆形平台， 所述圆形平台设 有一个与所述上极板、 永磁铁和下极板匹配的中央轴孔， 所述圆形平台具有光滑整齐的垂 直外圆面， 所述垂直外圆面的外側设有环形 W槽， 所述环形凹槽的槽底设有二个以上均匀 布置的穿透气孔， 所述环形凹槽的外側构成所述托架敞口的环筒状薄壁， 所述环筒状薄壁 内周面的相应轴向高度或其顶端部位设有光滑整齐的水平定位面和垂直定位面， 所述托架 环筒状薄壁的顶端部位还设有一个向外側展开的与所述框架匹配联接的法兰盘；
一个非导磁材料制成的紧固件穿过所述上极板、 永磁铁和下极板的至少一个中央轴孔 并将其紧固粘结在所述托架的所述圓形平台面的轴心部位上， 一个与所述上极板、 永磁铁 和下极板同轴安装的环筒状磁轭， 嵌入安装 /或粘结固定在所述托架环筒状薄壁的内周面并 被所述垂直定位面和水平定位面粘结定位 /或配合固定， 其另一端嵌入所述框架底部的所述 圆形轴孔且与所述框架联结或粘接固定， 所述环筒状磁轭的二个水平端面在轴向高度上分 别超出所述上极板和下极板的外側极面有 0. 5-20毫米的 H值， 所述环筒状磁轭的内周面与 所述上极板和下极板的垂直周面间构成二个同轴等径的环形磁隙， 在所述环形磁隙内插入 同轴等径的二个线图， 规定二个线圈的绕向及流经线圈的电流方向， 使所述线图在同一工 作瞬间产生同一方向的电动力 F;
以所述永磁铁二分之一轴向高度的等分线 X --- X轴线为水平对称轴， 以所述上极板、 永磁铁和下极板的中心轴线 Y --- Y 轴线为垂直对称轴， 所述双磁隙双线圏驱动器具有在几 何形状和磁性能方面左右对称及上下对称的二组磁路以及在几何形状和电性能方面左右对 称及上下对称的二组线圏电路， 规定二个所述线图串联连接后的绕向刚好相反， 二个所述 线團的电磁线橫截面积、 线圈圈数、 线圈卷幅、 线圈电阻、 线圈电感量的绝对值和绕线时 的张力彼此相等， 二个所述线圈的电感量及其在往复运动过程中感应到的反电动势（Back E l ec t romo t i ve Force)因具有 180 度相位角而互相抵消， 由此构成具有电阻负载特性或近 似于电阻负载特性的第一组双磁隙双线圈内磁式驱动器单元 01 ;
在所述第一组双磁隙双线圈驱动器单元 01的下极板外侧平面粘结一块具有适当厚度的 非导磁材料制成的同轴的圓片形 / 或圓环形隔板， 在所述圆片形 / 或圓环形隔板的另外一 侧平面又与所述换能器的第二组双磁隙双线圈驱动器的下极板粘结固定， 由此形成二组具 有相斥型磁铁的双磁隙双线圈驱动器单元 01 ,依此类推，在第二组双磁隙双线圈驱动器的上 极板外側平面再粘结一块具有适当厚度的非导磁材料制成的同轴的圆片形 / 或圓环形隔板, 在所述圓片形 / 或圆环形隔板的另外一侧平面又与所述换能器的第三组双磁隙双线图驱动 器单元 01 的下极板外側平面再粘结固定，所述第一组、 第二组、 第三组……双磁隙双线图 驱动器单元 01 以同一根中心轴线 Y --- Y轴线为垂直对称轴线， 具有同一个所述线圈骨架、 同一个所述框架和所述托架、 同一个所述环筒状磁轭、 相同几何尺寸的所述圆片形 /或圓环 形隔板、 4个 / 或 6个以上所述环形磁隙及与之匹配的 4个 /或 6个以上所述线圈， 由此构 成具有一对或一对以上相斥型磁铁和对称磁路及对称线圈电路的超高灵敏度高保真内磁式 多驱动器换能器。
具有对称磁路及对称线圈电路的多驱动器换能器， 包括磁路及与之连结成一体的框架 和托架， 同轴等径的磁隙和一个插入磁隙的线圏骨架， 其上平行缠绕彼此绝缘的电线并构 成线團， 与线圈骨架和至少一个弹波连结在一起的振膜 /或平面发声板， 通过线图骨架的活 塞运动带动所述振膜或平面发声板振动发声， 或者通过所述振膜检测声音的声压变化并在 线圏中感应到相应的音频信号。
所述框架是一个非导磁材料构成的框架 /或者所述框架和所述托架是融合成为一个整 体结构的框架；
所述磁路具有二块同轴安装的圆环形上极板和下极板， 二块所述极板具有相同的厚度 和投影面积且与所述永磁铁匹配， 一块園环形 /或一块以上等厚均布的轴向充磁的永磁铁将 所述上极板和下极板联结成为一个整体磁芯；
一个非导磁材料构成的托架， 其轴心部位设有一个内凸的圓环形平台， 所述圆环形平 台的轴心部位又设有一个内凸柱状体， 所述圆环形平台具有光滑整齐的垂直外圓面， 所述 垂直外 31面的外側设有环形 G3槽， 所述环形凹槽的槽底设有二个以上均匀布置的穿透气孔， 所述环形凹槽的外側构成所述托架的水平定位面和敞口的环筒状薄壁， 所述环筒状薄壁内 周面的相应轴向高度设有垂直定位面， 所述托架环筒状薄壁的顶端部位还设有一个向外側 展开的与所述框架匹配联接的法兰盘；
所述上极板、 永磁铁和下极板被嵌入安装 /或粘结固定在所述托架的环筒状薄壁的内周 面， 一个与所述上极板、 永磁铁和下极板同轴安装的环筒状磁轭， 嵌入安装 /或粘结固定 在所述托架的内凸柱状体上并被所述圆环形平台面水平定位， 所述环筒状磁轭的二个水平 端面在轴向高度上分别超出所述上极板和下极板的外側极面有 0. 5-20毫米的 H值， 所述环 筒状磁轭的外周面与所述上极板和下极板的垂直周面间构成二个同轴等径的环形磁隙， 在 所述环形磁隙内插入同轴等径的二个线图， 规定二个线图的绕向及流经线圈的电流方向， 使所述线圈在同一工作瞬间产生同一方向的电动力 F;
以所述永磁铁二分之一轴向高度的等分线 X --- X轴线为水平对称轴， 以所述上极板、 永磁铁和下极板的中心轴线 Y --- Y 轴线为垂直对称轴， 所述双磁隙双线圈驱动器具有在几 何形状和磁性能方面左右对称及上下对称的二组磁路以及在几何形状和电性能方面左右对 称及上下对称的二组线圈电路， 规定二个所述线圈串联连接后的绕向刚好相反， 二个所述 线圈的电磁线横截面积、 线圈圈数、 线圏卷幅、 线圈电阻、 线圈电感量的绝对值和绕线时 的张力彼此相等， 二个所述线圈的电感量及其在往复运动过程中感应到的反电动势（Back E l ec t romo t i ve Force)因具有 180 度相位角而互相抵消， 由此构成具有电阻负载特性或近 似于电阻负载特性的第一组双磁隙双线圈外磁式驱动器单元 02 ;
在所述第一组双磁隙双线圈驱动器单元 02的下极板外側平面粘结一块具有适当厚度的 非导磁材料制成的同轴的圆片形 / 或圆环形隔板， 在所述圆片形 / 或圓环形隔板的另外一 側平面又与所述换能器的第二组双磁隙双线圈驱动器单元 02的下极板粘结固定， 由此形成 二组具有相斥型磁性能的双磁隙双线圏驱动器， 依此类推， 在第二组双磁隙双线图驱动器 的上极板外侧平面再粘结一块具有适当厚度的非导磁材料制成的同轴的圓片形 / 或圓环形 隔板， 在所述圆片形 / 或圆环形隔板的另外一側平面又与所述换能器的第三组双磁隙双线 圈驱动器单元 02的上极板粘结固定， 所述第一组、 第二组、 第三组 ... ...双磁隙双线图驱动 器单元 02以同一根中心轴线 Y—- Y轴线为垂直对称轴线， 具有同一个所述线圏骨架、 同一 个所述框架和所述托架、 同一个所述环筒状磁轭、 相同几何尺寸的所述圆片形 /或圓环形隔 板、 4个 / 或 6个以上所述环形磁隙及与之匹配的 4个 /或 6个以上所述线圏， 由此构成具 有一对或一对以上相斥型磁鉄和对称磁路及对称线圈电路的超高灵敏度高保真外磁式多驱 动器换能器。
具有对称磁路及对称线圈电路的多驱动器换能器， 与所述二组双磁隙双线圈驱动器单 元 01 /或单元 02的下极板外側平面粘结固定的所述非导磁材料制成的同轴的圓片形 / 或圆 环形隔板，其厚度应确保具有相斥型磁性能的所述二组双磁隙双线團驱动器单元 01 /或单元 02 仍然具有在几何形状和磁性能方面左右对称及上下对称的二组磁路以及在几何形状和电 性能方面左右对称及上下对称的二组线團电路。
具有对称磁路及对称线圏电路的多驱动器换能器， 所述环筒状磁轭可以与所述垂直对 称轴 Y --- Y 轴线同轴等径的二段 /或二段以上轴向高度彼此相等的环筒状磁轭， 以及一个 / 或一个以上具有适当厚度的用非导磁材料制成的同轴的圆片形 / 或圆环形隔板粘结成为一 个整体。
具有对称磁路及对称线图电路的多驱动器换能器， 所述托架环形凹槽上的设有排放磁 路及线囷电路散发的热能以及减少所述换能器振动系统空气阻尼的所述穿透气孔， 当所述 托架几何尺寸及结构强度允许时， 每个所述穿透气孔具有尽可能大的投影面积并彼此相等， 所述穿透气孔的圆心或中心线均设置在所述线圈骨架 /或所述同轴等径线图的投影圓的圓 周线上， 并且在所述换能器振动系统上下振动时始终保持所述线圏电路的所述左右对称状 态。
具有对称磁路及对称线圈电路的多驱动器换能器， 所述托架的底部设有一个法兰盘， 一个非导磁材料构成的框架的一端与所述法兰盘联结固定， 所述框架的另一端设有一个比 所述弹波直径更大的法兰盘， 所述更大的法兰盘的轴心线部位设有一个内凸平台， 其轴心 线部位设有一个内凸柱状体， 所述环筒状磁轭嵌入安装 /或粘结固定在所述法兰盘的所述内 凸柱状体上， 由此构成同轴等径的所述环形磁隙， 一个弹波被粘结固定在所述框架的环形 平台面上， 所述框架与所述法兰盘上均设有勻称的散热透气空间. 本发明的有益效果：
1. 优秀的高效节能特性。 利用本发明对称磁路及对称线圈电路多驱动器原理提供的巨 大轴向推力同时消除了换能器的反电动势， 可以使扬声器特别是低音或超重低音扬声器获 得超高效率的输出声压 SPL值。
2.利用本发明提供的对称磁路及对称线图电路原理， 消除了扬声器对称线圈电路内的 电感量和反电动势， 因此可以使低音扬声器和超重低音扬声器的总谐波失真 THD 得到前所 未有的改善， 例如， 按照本发明原理制备得到的 1只 4驱动器 5.25英寸低音扬声器， 当谐 振频率 Fo=50Hz时， SPL> 90.2dB/lw/lm , THD+N < 1.8 % 。
3. 可以使 2.1声道或 4.1声道音响系统第一次实现 Hi— Fi音响的零的突破。
4. 换能器具有通透的磁路前后腔及良好的散热排放系统， 因而可以大幅度改善扬声器 的瞬态响应特性和功率压缩现象。
5.利用本发明多驱动器原理提供的巨大轴向推力， 可以使动困式机电换能器的功能特 性获得新的重大突破。 附图说明
1.图 1示出了已有技术实施例 1及其改进方案的纵剖面图。
2.图 2示出了已有技术实施例 2及其改进方案的纵剖面图.
3.图 3示出了本发明内磁式多驱动器换能器实施例 1的纵剖面图。
4.图 4示出了本发明内磁式多驱动器换能器实施例 2的纵剖面图。
5.图 5示出了本发明内磁式多驱动器换能器实施例 3的纵剖面图。
6.图 6示出了本发明外磁式多驱动器换能器实施例 1的纵剖面图.
7.图 7示出了本发明外磁式多驱动器换能器实施例 2的纵剖面图.
8.图 8示出了本发明外磁式多驱动器换能器实施例 3的纵剖面图.
9.图 9示出了本发明外磁式多驱动器换能器实施例 4的纵剖面图。 本发明主要元件与标号对应关系如下:
103A- 603A: 上极板 103B- 603B: 下极板
101 - 601： 框架 1013 - 6013: 框架和托架联结螺钉
1871 - 2871: 敞口圆筒体 181 - 681: 托架
133 - 633: 凹入部位配合面 102 - 602: 永磁铁
106 - 606: 振膜 /平面发声板 199 - 699: 悬边
141 - 641： 弹波 105 - 605: 防尘帽
107 - 607: 线图骨架 109 - 609 (A/B) : 线圈 110 - 610(A/B)： 环形磁隙 163 - 663: 环形凹槽
111 - 611： 内凸平台面 112 - 612: 内凸柱状体
11200 - 61200: 内凸柱状体环形配合面
113 - 613: 环筒状磁轭 1118 - 6118: 托架内凸平台
1810- 6810: 托架环筒状薄壁水平定位面
1820 - 6820: 托架环筒状薄壁垂直定位面
182 - 682: 穿透气孔
1020, 2020: 非导磁圓片形 /或圆环形隔板
1021, 2021: 非导磁圆片形 /或圆环形隔板
1710 - 6710: 非导磁材料紧固件
172 - 672： 非导磁压板 175 - 675: 非导磁螺母
170 - 670: 内凹轴孔 具体实施方式
图 1示出了已有技术实施例 1及其改进方案的纵剖面图。
这是本发明人已经公开的 PCT/CN2008/072668所揭示的图 6 实施例的磁芯部分剖面图 (包含了线圈 109及线圈骨架 107在内）. 上极板 103A和下极板 103B是二块厚度相等-、 投 影面积相等、同轴安装的圆片形平板，一块与之匹配的钕铁硼磁铁 102被粘结在上极板 103A 和下极板 103B之间……，环筒状磁轭 113套装于上述磁芯的轴心部位…… , 此时，元件 113 的内周面与元件 103A和 103B的垂直周面间构成二个同轴等径的环形磁隙 110A和 110B,在 所述环形磁隙中插入线圈骨架 107和同轴安装的二个线圈 109A和 109B, 设定线圈 109A为 顺时针绕向， 线圈 109B为反时针绕向（反之亦然）。 规定线圈 109A和线圈 109B的电磁线横 截面积、 线圈圈数、 线圈卷幅、 线圈电阻、 线圈电感量的绝对值、 绕线时的张力彼此相等， 串联连接后成为一个线圈如 PCT/CN2008/072668图 12所示， 由此构成以上极板 103A、 下极 板 103B和线圏卷幅二分之一轴向高度后等分线 Z-- Z轴线为水平对称轴，以所述永磁铁 102 的二分之一轴向高度的等分线 X --- X轴线为水平对称轴、以元件 103A、元件 102和元件 103B 的 Y—- Y 轴线为垂直对称轴的二组在几何形状和磁性能方面上下、 左右对称的磁路以及在 几何形状和电性能方面上下、左右对称的线團电路。由此，本实施例的二个线圈 109A和 109B 的电感量的绝对值及其在往复式运动过程中感应得到的反电动势 （Back Electromotive Force ) 因具有 180度相位角而互相抵消。 本实施例是具有电阻负栽特性或近似于电阻负栽 特性并具有超高灵敏度和高保真品质的一组双磁隙双线图内磁式换能器驱动器单元 01。 更 详细的说明请参阅本发明人已经公开的 PCT/CN2008/072668图 6、 图 9至图 12、 图 20、 图 21和 CN200510091936.0和 US2005/0099255A1说明书的描述而不再予以重复.
十分明显， 为了使换能器在动态工作过程中同样能够获得 PCT/CN2008/072668 等已有 技术所述的对称磁路和对称线圏电路特性， 本发明对上述已有技术提出了新的改进方案： 以所述上极板 103A和下极板 103B以及线圏 109A和线圈 109B卷幅的二分之一轴向高度的 等分线 Z --- Z 轴线为同一水平对称轴， 从而使本发明实施例可以获得最佳的上下、 左右对 称磁路和上下、 左右对称线圏电路特性。 图 2示出了已有技术实施例 2及其改进方案的纵剖面图。
这是本发明人已经公开的 PCT/CN2008/072668所揭示的图 5 实施例的磁芯部分剖面图 (包含了线圈 209及线圈骨架 207在内）。 上极板 203A和下极板 203B是二块厚度相等、 投 影面积相等、同轴安装的圓环形平板，一块与之匹配的钕铁硼磁铁 202被粘结在上极板 203A 和下极板 203B之间……，环筒状磁轭 21 3套装于上述磁芯的轴心部位……， 此时，元件 21 3 的外周面与元件 203A和 203B的垂直周面间构成二个同轴等径的环形磁隙 210A和 210B,在 所述环形磁隙中插入线圈骨架 207和同轴安装的二个线圏 209A和 209B, 设定线图 209A为 顺时针绕向， 线圈 209B为反时针绕向（反之亦然）。 规定线圈 209A和线圈 209B的电磁线横 截面积、 线圈圈数、 线圈卷幅、 线圈电阻、 线圈电感量的绝对值、 绕线时的张力彼此相等， 串联连接后成为一个线圈如 PCT/CN2008/072668图 12所示， 由此构成以上极板 203A、 下极 板 203B和线圈卷幅二分之一轴向高度等分线 Z- - Z轴线为水平对称轴， 以所述永磁铁 202 的二分之一轴向高度的等分线 X --- X轴线为水平对称轴、以元件 203A、元件 202和元件 203B 的 Y -— Y 轴线为垂直对称轴的二组在几何形状和磁性能方面上下、 左右对称的磁路以及在 几何形状和电性能方面上下、左右对称的线圏电路。由此，本实施例的二个线圏 209A和 209B 的电感量的绝对值及其在往复式运动过程中感应得到的反电动势因具有 180 度相位角而互 相抵消。 本实施例是一个具有电阻负载特性或近似于电阻负载特性并具有超高灵敏度和高 保真品质的一组双磁隙双线图外磁式换能器驱动器单元 02。 详细的说明请参阅 PCT/CN2008/072668图 5、 图 9至图 12、 图 20、 图 21和 CN200610020317. 7说明书的描述 而不再予以重复。
十分明显， 为了使换能器在动态工作过程中同样能够获得 PCT/CN2008/072668 已有技 术所述的对称磁路和对称线圏电路特性， 本发明对上述已有技术提出了新的改进方案： 以 所述上极板 103A和下极板 103B以及线图 109A和线图 109B卷幅的二分之一轴向高度的等 分线 Z—- Z 轴线为同一水平对称轴， 从而使本发明实施例可以获得最佳的上下、 左右对称 磁路和上下、 左右对称线图电路特性。
图 3示出了本发明内磁式多驱动器换能器实施例 1的纵剖面图。
这是一个具有对称磁路及对称线图电路的内磁式 4 驱动器扬声器实施例. 二块同轴安 装的上极板 103A和下极板 103B, 二块所述极板具有相同的厚度和投影面积且与永磁铁 102 匹配，一块 /或一块以上等厚均布的轴向充磁的钕铁硼磁铁 102将上极板 103A和下极板 103B 粘结成为一个整体磁芯。 二组完全相同的双磁隙双线圈内磁式驱动器单元 01 , 每一组双磁 隙双线围内磁式换能器驱动器单元 01的结构和工作原理与图 1实施例说明书的描述完全相 同， 本实施例不再予以重复。
框架 101 是一个铝合金框架， 其底部设有一个轴孔以便与扬声器的所述磁芯和音图骨 架 107 匹配. 一个铝合金制成的托架 181， 其轴心部位设有一个内凸圆形平台 1118， 所述 圆形平台具有光滑整齐的垂直外圆面， 所述垂直外圓面的外侧设有环形 C3槽 163, 所述环形 凹槽 163的槽底设有二个以上均勾布置的穿透气孔 182 ,所述环形凹槽 163的外側构成所述 托架 181的敞口环筒状薄壁， 其内周面的相应轴向高度设有光滑整齐的水平定位面 1810和 垂直定位面 1820 , 托架 181 的环筒状薄壁的顶端部位还设有一个向外側展开的与框架 101 匹配的法兰盘， 该法兰盘上设有若干个均匀布置的螺孔， 通过螺钉 1013将框架 101与托架 181联结成为一个整体。
在粘结成形的第一组双磁隙双线圈内磁式驱动器单元 01磁芯的下极板 103B 的外側平 面上涂布粘结剂， 与一块具有适当厚度的非导磁刚性材料制成的铝合金圓片形隔板 1020粘 结固定， 然后在圆片形隔板 1020的另外一侧平面再涂布粘结剂并利用工装夹具与第二组已 经粘结成形的双磁隙双线圈内磁式驱动器单元 01 磁芯的下极板 103B粘结固定， 二组双磁 隙双线图内磁式驱动器单元 01磁芯的极性如图 3所示， 由此形成同轴等径的具有一对相斥 型磁铁的双磁隙双线圈内磁式 4 驱动器扬声器磁芯。 在内凸圆形平台 1118 的外側水平面 1180上涂布粘结剂， 将上述磁芯粘结固定在该内凸圆形平台 1118和框架 101、 托架 181的 同一 Y --- Y轴线即该换能器的垂直对称轴上。
一个与上述磁芯同轴安装的环筒状磁轭 113, 自上向下嵌入安装 /或粘结固定在所述托 架 181环筒状薄壁的内周面并被垂直定位面 1820和水平定位面 1810粘结定位 /或配合固定， 其另一端嵌入框架 101底部的所述圓形轴孔且与框架 101 匹配或联接固定，环筒状磁轭 113 的二个外侧水平端面在轴向高度上分别超出 2块上极板 103A的外側极面有 0.5- 20毫米的 H 值， 环筒状磁轭 113的内周面与所述上极板 103A、 永磁铁 102和下极板 103B的中心轴线 Y--Y轴线为垂直对称轴， 2块上极板 103A和 2块下极板 103B的垂直周面与环筒状磁轭 113 的内周面间构成 4个同轴等径的环形磁隙 110, 在环形磁隙 110内插入同轴等径的 4个线图 109, 规定每组双磁隙双线圈内磁式驱动器单元 01的 2个线圈 109的绕向及流经线圏的电流方向， 使 线图 109A和线圈 109B在同一工作瞬间产生同一方向的电动力 F,
由此构成以圆片形隔板 1020二分之一轴向高度的等分线 W --- W轴线为水平对称轴， 以上极板 103A、 永磁铁 102和下极板 103B的中心轴线 Y --- Y为垂直对称轴的具有一对相斥型磁铁和 具有在几何形状和磁性能方面左右对称及上下对称的二组磁路以及在几何形状和电性能方 面左右对称及上下对称的二组线圈电路。 正如图 1 实施例说明书所描述的那样， 每组对称 线圈电路的二个所述线圈 109A和 109B 串联连接后的绕向刚好相反， 二个所述线圈的电磁 线横截面积、 线圈圈数、 线團卷幅、 线圏电阻、 线圈电感量的绝对值和绕线时的张力彼此 相等， 最后将上述二组对称的线圏串联电路予以并联连接（本实施例省略未绘）， 所述二组 双磁隙双线圈内磁式驱动器单元 01构成具有一对相斥型磁铁和电阻负栽特性或近似于电阻 负载特性以及每组串联线團电路内的反电动势被互相抵消的内磁式 4 驱动器扬声器 ......， 依此类推， 在第二组双磁隙双线團驱动器单元 01 的上极板 103A的外侧平面再粘结一块具 有适当厚度的非导磁刚性材料制成的同轴的圆片形 / 或圆环形隔板 1020, 在该圓片形 / 或 圓环形隔板 1020 的另外一倒平面又与所述换能器的第三组双磁隙双线图驱动器单元 01 的 上极板 103A的外側平面再粘结固定， 由此形成三组及三组以上具有相斥型磁铁的双磁隙双 线圏驱动器单元 01, 所述第一组、 第二组、 第三组……双磁隙双线圏驱动器单元 01以同一 根中心轴线 Y --- Y 为垂直对称轴线， 具有同一个线圈骨架、 同一个所述框架和所述托架、 同一个环筒状磁轭、 4个 / 或 6个以上同轴等径的环形磁隙 110及与之匹配的 4个 /或 6个 以上同轴等径的线圈 109， 由此构成具有一对或一对以上相斥型磁铁和对称磁路及对称线圏 电路的内磁式多驱动器换能器。
需要特别指出的是： 非导磁刚性材料制成的圓片形 / 或圆环形隔板 1020的厚度， 与上 极板 103A和下极板 103B的厚度以及永磁铁 102 的厚度及其磁能积密切相关。 所谓适当厚 度是指只有在这个厚度时， 本实施例每组双磁隙双线图驱动器单元 01的二组对称磁路及二 组对称线圈电路的上下对称特性所受到的影响可以忽略不计， 并且在允许的公差范围以内。
此外， 托架 181 环形凹槽上设有一圈排放磁路及线圈电路散发的热能以及减少所述换 能器振动系统空气阻尼的穿透气孔 182 , 当所述托架 181的几何尺寸及结构强度允许时， 每 个穿透气孔 182 具有尽可能大的投影面积并彼此相等。 为了保持换能器在上下活塞运动过 程中其对称线圈仍然能够保持动态平衡， 本发明呈环状阵列布置的所有穿透气孔 182 的圆 心或中心线均设置在所述线圈骨架 1 07/或所述同轴等径线圈的投影圓的圆周线上， 以确保 在所述换能器振动系统上下振动工作时所述线圏电路仍然保持必需的左右对称状态。
图 4示出了本发明内磁式多驱动器换能器实施例 2的纵剖面图。
这是图 3实施例的一种改进方案， 适用于中等口径和大口径的内磁式多驱动器杨声器。 在本实施例中， 上极板 103A和下极板 1 03B是 4块圆环状极板， 永磁铁 102也设有一个与 上极扳和下极板匹配的轴孔。 在托架内凸平台 1 1 18 的轴心部位还设置一个穿透孔 /或穿透 螺孔， 在组装图 1所述的二组双磁隙双线圈内磁式驱动器单元 01时， 将一根非导磁材料紧 固件 1 71 0例如 l Cr l 8N i 9T i 不锈钢螺栓自上而下插入非导磁垫图 172、 上极板 103A、 永磁 铁 1 02、 下极板 103B和非导磁圓环型隔板 1020的与元件 1710匹配的所有轴孔内， 借助嵌 入在托架 181底部的内 W轴孔 170的非导磁螺母 175，本实施例的一对或一对以上相斥型磁 铁的内磁式驱动器单元 01的磁芯可以同时依靠粘结剂和紧固件的作用力使它们牢固地与托 架联结固定成为一个整体。
作为本实施例的一种变异方案， 也可以在托架 181的内凸平台 11 18的轴心部位设置一 个螺孔 1751并利用一根非导磁紧固螺栓 1710将所述磁芯与托架联结成为一个整体。
作为本实施例的另外几种变异方案， 请参阅本发明人已经授权的中国发明专利 CN200510091936. 0图 3至图 5的说明书而不再予以重复。
考虑到中等口径和大口径内磁式多驱动器扬声器往往拥有 4个或 6 个驱动器， 所以它 的线圏骨架往往很长， 它在轴向活塞运动过程中， 为了避免发生线園骨架尾端部因径向偏 摆而发生擦图故障， 本实施例启用了安装在不同轴向高度的双弹波技术方案。 如图 4所示， 弹波 141 -1和 141-2 同时安装在线圏骨架 107的不同高度上， 两者的安装间距愈大则稳定 线圈骨架 107尾端部（靠近环形凹槽 163)作径向偏摆的控制力愈大，扬声器发生音圈擦圈故 障的概率也愈小，
除此之外， 本实施例与图 3实施例的结构和工作原理完全相同， 本发明不再重复描述。 图 5示出了本发明内磁式多驱动器换能器实施例 3的纵剖面图.
这是图 4 实施例 2的一种变异方案： 将一个环筒状磁轭 113变更为二个独立、 同轴、 等高的环筒状磁轭 113 , 同时增加一个与之匹配的非导磁圆环状隔板 1021将这二个环筒状 磁轭 113粘结成为一个整体 ... ...， 除此之外， 本实施例与图 4 实施例的结构和工作原理完 全相同， 本发明不再重复描述。
图 6示出了本发明外磁式多驱动器换能器实施例 1的纵剖面图.
这是一个具有对称磁路及对称线圈电路的外磁式 4 驱动器扬声器实施例. 二块同轴安 装的上极板 203A和下极板 203B是圆环形极板， 所述极板具有相同的厚度和投影面积且与 钕铁硼磁铁 202 匹配， 一块 /或一块以上等厚均布的轴向充磁的钕铁硼磁铁 202 将上极板 2 03A和下极板 203B粘结成为一个整体磁芯 =二组完全相同的双磁隙双线圈外磁式驱动器单 元 02，每一组双磁隙双线圈外磁式换能器驱动器单元 02的结构和工作原理与图 2实施例说 明书的描述完全相同， 本实施例不再予以重复。
框架 201 是一个铝合金框架， 其底部设有一个轴孔以便与扬声器的所述磁芯和音圈骨 架 207 匹配。 一个铝合金制成的托架 281 , 其轴心部位设有一个内凸圆形平台 21 1 8 , 所述 圓形平台的轴心部位设有一根内凸柱状体 212， 其基底外側设有内凸平台面 21 1 , 其外侧具 有光滑整齐的垂直外圓面， 所述垂直外圆面的外侧设有环形凹槽 263， 所述环形凹槽 263的 槽底设有二个以上均勾布置的穿透气孔 282 ,所述环形 槽 263的外侧构成所述托架 281的 敞口环筒状薄壁， 其内周面的相应轴向高度设有光滑整齐的水平定位面 281 0和垂直定位面 2820 , 托架 281 的环筒状 壁的顶端部位还设有一个向外側展开的与框架 201 匹配的法兰 盘， 该法兰盘上设有若干个均勾布置的螺孔， 通过螺钉 201 3将框架 201与托架 281联结成 为一个整体。
在粘结成形的第一组双磁隙双线圈外磁式驱动器单元 02磁芯的下极板 203Β 的外側平 面上涂布粘结剂， 与一块具有适当厚度的非导磁刚性材料制成的铝合金圆片形隔板 2020粘 结固定， 然后在圆片形隔板 2020的另外一侧平面再涂布粘结剂并利用工装夹具与第二组已 经粘结成形的双磁隙双线圈外磁式驱动器单元 02磁芯的下极板 203Β粘结固定， 二组双磁 隙双线圈外磁式驱动器单元 02磁芯的极性如图 6所示， 由此形成同轴等径的具有一对相斥 型磁铁的双磁隙双线圈外磁式 4驱动器扬声器磁芯。
在所述托架 281敞口环筒状薄壁的水平定位面 2810和垂直定位面 2820上涂布粘结剂， 将所述磁芯自上而下嵌入所述托架 281 的敞口环筒状薄壁内粘结固定并确保与内凸圆形平 台 21 18、 内凸柱状体 212、 框架 201、 托架 281处于同一奈 Υ --- Υ垂直轴线上„
一个与上述磁芯同轴安装的环筒状磁轭 21 3 , 自上向下嵌入安装 /或粘结固定在所述托 架 281 的内凸柱状体 212周面并被内凸平台面 211粘结定位 /或配合固定。 环筒状磁轭 21 3 的二个外侧水平端面在轴向高度上分别超出 2块上极板 203Α的外侧极面有 0. 5- 20毫米的 Η 值， 环商状磁轭 21 3的内周面与所述上极板 203Α、 永磁铁 202和下极板 203Β的中心轴线 Υ -- Υ轴线为垂直对称轴， 2块上极板 203Α和 2块下极板 203Β的垂直周面与环筒状磁轭 213 的外周面间构成 4个同轴等径的环形磁隙 210 ,在环形磁隙 210内插入同轴等径的 4个线圈 209 , 规定每组双磁隙双线圈外磁式驱动器单元 02的 2个线圈 209的绕向及流经线圈的电 流方向，使线圈 209在同一工作瞬间产生同一方向的电动力 F， 由此构成以圓片形隔板 2020 二分之一轴向高度的等分线 W --- W轴线为水平对称轴， 以上极板 203A、 永磁铁 202和下 极板 203B的中心轴线 Y -— Y为垂直对称轴的具有一对相斥型磁铁和具有在几何形状和磁性 能方面左右对称及上下对称的二组磁路以及在几何形状和电性能方面左右对称及上下对称 的二组线圈电路. 正如图 2 实施例说明书所描述的那样， 每组对称线圏电路的二个所述线 图 209 串联连接后的绕向刚好相反， 二个所述线圈的电磁线横截面积、 线圈圈数、 线圈卷 幅、 线 S电阻、 线图电感量的绝对值和绕线时的张力彼此相等， 最后将上述二组对称的线 图串联电路予以并联连接（本实施例省略未绘）， 所述二组双磁隙双线圈外磁式驱动器单元 02 构成具有一对相斥型磁铁和电阻负栽特性或近似于电阻负栽特性以及每組串联线圈电路 内的反电动势被互相抵消的外磁式 4 驱动器扬声器……， 依此类推， 在第二组双磁隙双线 圈驱动器单元 02 的上极板 203A 的外側平面再粘结一块具有适当厚度的非导磁刚性材料制 成的同轴的圓片形 / 或圆环形隔板 2020 ,在该圆片形 / 或圓环形隔板 2020的另外一側平面 又与所述换能器的第三组双磁隙双线圈驱动器单元 02的上极板 203A的外侧平面粘结固定， 由此形成三组及三组以上具有相斥型磁铁的双磁隙双线圈驱动器单元 02 , 所述第一组、 第 二组、 第三组……双磁隙双线圈驱动器单元 02以同一根中心轴线为垂直对称轴线， 具有同 一个线圈骨架、 同一个所述框架和所述托架、 同一个环筒状磁轭、 4个 / 或 6个以上同轴等 径的环形磁隙 21 0及与之匹配的 4个 /或 6个以上同轴等径的线圈 209 , 由此构成具有一对 或一对以上相斥型磁铁和对称磁路及对称线圈电路的外磁式多驱动器换能器。
需要特别指出的是： 非导磁刚性材料制成的圆片形 / 或圓环形隔板 2020的厚度， 与上 极板 203A和下极板 203B的厚度以及永磁铁 202 的厚度和磁能积密切相关。 所谓适当厚度 是指只有在这个厚度时， 本实施例每组双磁隙双线圈驱动器单元 02的二组对称磁路及二组 对称线图电路的上下对称特性所受到的影 ^可以忽略不计， 并且在允许的公差范围以内。
除此之外， 本实施例与图 3实施例的结构和工作原理完全相同， 本发明不再重复描述。 图 7示出了本发明外磁式多驱动器换能器实施例 2的纵剖面图。
这是图 6 实施例 2的一种变异方案： 将一个环筒状磁轭 21 3变更为二个独立、 同轴、 等高的环筒状磁轭 213， 同时增加一个与之匹配的非导磁圓环状隔板 2021将这二个环筒状 磁轭 213粘结成为一个整体……， 除此之外， 本实施例与图 6实施例 1 的结构和工作原理 完全相同， 本发明不再重复描述。
图 8示出了本发明外磁式多驱动器换能器实施例 3的纵剖面图。
图示的极板 203A、 203B是具有二个不同直径轴孔的极板， 由此之故， Z轴至 Z轴的轴 向距离较图 6所示的实施例 2增加不少。 也就是说， 本实施例尤其适宜工作在具有超长线 性行程的个案中使用。 其它部分， 与图 6实施例的说明书完全相同。
图 9示出了本发明外磁式多驱动器换能器实施例 4的纵剖面图。
这是一个具有变异托架 281和变异的第二框架 201 1的实施例。 由图可见， 二块等径的 弹波 241 以 W --- W轴线为水平对称轴并呈镜像位置安装。 前述托架 281 的下端部具有一个 中央轴孔与线圈架 207 匹配， 并在其外側平面匹配一个与之联结的框架 201 1 , 该倒置框架 201 1的外侧平面设有一块非导磁刚性材料制成的带有法兰盘的圓形板 2012 , 其中央轴心部 位设有一个内凸柱状体 2118 , —如图 6所示的那样， 一个与 Y --- Y轴线同轴安装的环筒状 磁轭 211的外周面， 与极板 203A和 203B的垂直周面间构成 4个或 4个以上同轴等径的环 形磁隙 210... ...， 由此构成线图骨架 207的径向偏摆受到更好控制的上下双弹波多驱动器实 施方案。

Claims

1. 具有对称磁路及对称线圈电路的多驱动器换能器， 包括磁路及与之连结成一体的框 架和托架， 同轴等径的磁隙和一个插入磁隙的线图骨架， 其上平行缠绕彼此绝缘的电线并 构成线圈， 与线圈骨架和至少一个弹波连结在一起的振膜 /或平面发声板， 通过线圈骨架的 活塞运动带动所述振膜或平面发声板振动发声， 或者通过所述振膜检测声音的声压变化并 在线圈中感应到相应的音频信号， 其特征是：
a .所述框架是一个非导材料构成的框架 /或者所述框架和所述托架是融合成为一个整 体结构的框架；
b.所述磁路具有二块同轴安装的上极板和下极板， 二块所述极板具有相同的厚度和投 影面积且与所述永磁铁匹配， 一块 /或一块以上等厚均布的轴向充磁的永磁铁将所述上极板 和下极板联结成为一个整体磁芯；
c 一个非导磁材料构成的托架， 其轴心部位设有一个内凸的圆形平台， 所述圓形平台 具有光滑整齐的垂直外圆面， 所述垂直外圓面的外侧设有环形凹槽， 所述环形凹槽的槽底 设有二个以上均勾布置的穿透气孔， 所述环形凹槽的外侧构成所述托架敞口的环筒状薄壁， 所述环筒状薄壁内周面的相应轴向高度或其顶端部位设有光滑整齐的水平定位面和垂直定 位面， 所述托架环筒状薄壁的顶端部位还设有一个向外側展开的与所述框架匹配联接的法 兰盘；
d. 所述上极板、 永磁铁和下极板被粘结固定在所述托架的所述圓形平台面的轴心部位 上， 一个与所述上极板、 永磁铁和下极板同轴安装的环筒状磁轭， 嵌入安装 /或粘结固定 在所述托架环筒状薄壁的内周面并被所述垂直定位面和水平定位面粘结定位 /或配合固定， 其另一端嵌入所述框架底部的所述圓形轴孔且与所述框架联结或粘接固定， 所述环筒状磁 轭的二个水平端面在轴向高度上分别超出所述上极板和下极板的外側极面有 0. 5- 20毫米的 H值，所述环筒状磁轭的内周面与所述上极板和下极板的垂直周面间构成二个同轴等径的环 形磁隙， 在所述环形磁隙内插入同轴等径的二个线圈， 规定二个线圏的绕向及流经线圏的 电流方向， 使所述线圈在同一工作瞬间产生同一方向的电动力 F;
e.以所述永磁铁二分之一轴向高度的等分线 X --- X 轴线为水平对称轴， 以所述上极 板、 永磁铁和下极板的中心轴线 Y --- Y 轴线为垂直对称轴， 所述双磁隙双线圏驱动器单元 01 具有在几何形状和磁性能方面左右对称及上下对称的二组磁路以及在几何形状和电性能 方面左右对称及上下对称的二组线團电路， 规定二个所述线團串联连接后的绕向刚好相反， 二个所述线圈的电磁线横截面积、 线圈圈数、 线囷卷幅、 线囷电阻、 线圈电感量的绝对值 和绕线时的张力彼此相等， 二个所述线圈的电感量及其在往复运动过程中感应到的反电动 势（Back E l ec t romo t i ve Force)因具有 180度相位角而互相 4氐消 , 由此构成具有电阻负栽特 性或近似于电阻负载特性的第一组双磁隙双线图内磁式驱动器单元 01 ;
f. 在所述第一组双磁隙双线團内磁式驱动器单元 01 的下极板外側平面粘结一块具有 适当厚度的非导磁材料制成的同轴的圓片形 / 或圆环形隔板， 在所述圓片形 / 或圓环形隔 板的另外一侧平面又与所述换能器的第二组双磁隙双线圈驱动器单元 01 的下极板粘结固 定， 由此形成二组具有相斥型磁铁的双磁隙双线圈内磁式驱动器单元 01 , 依此类推， 在第 二组双磁隙双线圈内磁式驱动器单元 01的上极板外侧平面再粘结一块具有适当厚度的非导 磁材料制成的同轴的圆片形 / 或圆环形隔板， 在所述圆片形 / 或圓环形隔板的另外一侧平 面又与所述换能器的第三组双磁隙双线圈驱动器的上极板粘结固定， 所述第一组、 第二组、 第三组……双磁隙双线圈驱动器单元 01 以所述同一根中心轴线 Y --- Y 轴线为垂直对称轴 线， 具有同一个所述线圈骨架、 同一个所述框架和所述托架、 同一个所述环筒状磁轭、 相 同几何尺寸的所述圆片形 /或圓环形隔板、 4个 / 或 6个以上所述环形磁隙及与之匹配的 4 个 /或 6个以上所述线图， 由此构成具有一对或一对以上相斥型磁铁和对称磁路及对称线圈 电路的超高灵敏度高保真内磁式多驱动器换能器。
2.具有对称磁路及对称线圈电路的多驱动器换能器， 包括磁路及与之连结成一体的框 架和托架， 同轴等径的磁隙和一个插入磁隙的线图骨架， 其上平行缠绕彼此绝缘的电线并 构成线图， 与线圈骨架和至少一个弹波连结在一起的振膜 /或平面发声板， 通过线團骨架的 活塞运动带动所述振膜或平面发声板振动发声， 或者通过所述振膜检测声音的声压变化并 在线圈中感应到相应的音频信号， 其特征是：
a .所述框架是一个非导磁材料构成的框架 /或者所述框架和所述托架是融合成为一个 整体结构的框架；
b.所述磁路具有二块同轴安装的设有至少一个中央轴孔的上极板和下极板， 二块所述 极板具有相同的厚度和投影面积且与所述永磁铁匹配， 一块设有中央轴孔的圓环形 /或一块 以上等厚均布的轴向充磁的永磁铁将所述上极板和下极板联结成为一个整体磁芯；
c 一个非导磁材料构成的托架， 其轴心部位设有一个内凸的圓形平台， 所述圆形平台 设有一个与所述上极板、 永磁铁和下极板匹配的中央轴孔， 所述圓形平台具有光滑整齐的 垂直外圓面， 所述垂直外圓面的外侧设有环形 EJ槽， 所述环形 EJ槽的槽底设有二个以上均 匀布置的穿透气孔， 所述环形 KJ槽的外侧构成所述托架敞口的环筒状薄壁， 所述环筒状薄 壁内周面的相应轴向高度或其頂端部位设有光滑整齐的水平定位面和垂直定位面， 所述托 架环筒状薄壁的顶端部位还设有一个向外侧展开的与所述框架匹配联接的法兰盘；
d. 一个非导磁材料制成的紧固件穿过所述上极板、 永磁铁和下极板的至少一个中央轴 孔并将其紧固粘结在所述托架的所述圆形平台面的轴心部位上， 一个与所述上极板、 永磁 铁和下极板同轴安装的环筒状磁轭， 嵌入安装 /或粘结固定在所述托架环筒状薄壁的内周面 并被所迷垂直定位面和水平定位面粘结定位 /或配合固定， 其另一端嵌入所述框架底部的所 述圓形轴孔且与所述框架联结或粘接固定， 所述环筒状磁轭的二个水平端面在轴向高度上 分别超出所述上极板和下极板的外側极面有 0. 5-20毫米的 H值， 所述环筒状磁轭的内周面 与所述上极板和下极板的垂直周面间构成二个同轴等径的环形磁隙， 在所述环形磁隙内插 入同轴等径的二个线圈， 规定二个线图的绕向及流经线團的电流方向， 使所述线圏在同一 工作瞬间产生同一方向的电动力 F;
e.以所述永磁铁二分之一轴向高度的等分线 X --- X 轴线为水平对称轴， 以所述上极 板、 永磁铁和下极板的中心轴线 Y --- Y 轴线为垂直对称轴， 所述双磁隙双线圈驱动器具有 在几何形状和磁性能方面左右对称及上下对称的二组磁路以及在几何形状和电性能方面左 右对称及上下对称的二组线圈电路， 规定二个所述线图串联连接后的绕向刚好相反， 二个 所述线圈的电磁线橫截面积、 线圈圈数、 线圈卷幅、 线圈电阻、 线圏电感量的绝对值和绕 线时的张力彼此相等， 二个所述线圈的电感量及其在往复运动过程中感应到的反电动势 (Back E l ec t romo t i ve Force)因具有 180度相位角而互相 ·ί氐消， 由此构成具有电阻负载特性 或近似于电阻负载特性的第一组双磁隙双线圈内磁式驱动器单元 01 ;
f. 在所述第一组双磁隙双线圈驱动器单元 01 的下极板外侧平面粘结一块具有适当厚 度的非导磁材料制成的同轴的圓片形 / 或圓环形隔板， 在所述圓片形 / 或圆环形隔板的另 外一侧平面又与所述换能器的第二组双磁隙双线圈驱动器的下极板粘结固定， 由此形成二 组具有相斥型磁铁的双磁隙双线圈驱动器单元 01 , 依此类推， 在第二组双磁隙双线圈驱动 器的上极板外侧平面再粘结一块具有适当厚度的非导磁材料制成的同轴的圓片形 / 或圓环 形隔板， 在所述圓片形 / 或圆环形隔板的另外一侧平面又与所述换能器的第三组双磁隙双 线圏驱动器单元 01的下极板外侧平面再粘结固定， 所述第一组、 第二组、 第三组……双磁 隙双线圈驱动器单元 01以同一根中心轴线 Y—- Y轴线为垂直对称轴线， 具有同一个所述线 圏骨架、 同一个所述框架和所述托架、 同一个所述环筒状磁轭、 相同几何尺寸的所述圓片 形 /或圆环形隔板、4个 / 或 6个以上所述环形磁隙及与之匹配的 4个 /或 6个以上所述线圈， 由此构成具有一对或一对以上相斥型磁铁和对称磁路及对称线圏电路的超高灵敏度高保真 内磁式多驱动器换能器。
3.具有对称磁路及对称线圏电路的多驱动器换能器， 包括磁路及与之连结成一体的框 架和托架， 同轴等径的磁隙和一个插入磁隙的线圈骨架， 其上平行缠绕彼此绝缘的电线并 构成线團， 与线圈骨架和至少一个弹波连结在一起的振膜 /或平面发声板， 通过线图骨架的 活塞运动带动所述振膜或平面发声板振动发声， 或者通过所述振膜检测声音的声压变化并 在线圈中感应到相应的音频信号， 其特征是：
a.所述框架是一个非导磁材料构成的框架 /或者所述框架和所述托架是融合成为一个 整体结构的框架；
b.所述磁路具有二块同轴安装的圆环形上极板和下极板， 二块所述极板具有相同的厚 度和投影面积且与所述永磁铁匹配， 一块圆环形 /或一块以上等厚均布的轴向充磁的永磁铁 将所述上极板和下极板联结成为一个整体磁芯；
c 一个非导磁材料构成的托架， 其轴心部位设有一个内凸的圆环形平台， 所述圆环 形平台的轴心部位又设有一个内凸柱状体， 所述圓环形平台具有光滑整齐的垂直外圆 面， 所述垂直外圆面的外侧设有环形凹槽， 所述环形凹槽的槽底设有二个以上均勾布置的 穿透气孔， 所述环形凹槽的外侧构成所述托架的水平定位面和敞口的环筒状薄壁， 所述环 筒状薄壁内周面的相应轴向高度设有垂直定位面， 所述托架环筒状薄壁的顶端部位还设有 一个向外側展开的与所述框架匹配联接的法兰盘；
d. 所述上极板、 永磁铁和下极板被嵌入安装 /或粘结固定在所述托架的环筒状薄壁的 内周面， 一个与所述上极板、 永磁铁和下极板同轴安装的环筒状磁轭， 嵌入安装 /或粘结 固定在所述托架的内凸柱状体上并被所述圆环形平台面水平定位， 所述环筒状磁轭的二个 水平端面在轴向高度上分别超出所述上极板和下极板的外侧极面有 0. 5-20毫米的 H值， 所 述环筒状磁轭的外周面与所述上极板和下极板的垂直周面间构成二个同轴等径的环形磁 隙， 在所述环形磁隙内插入同轴等径的二个线圈， 规定二个线圈的绕向及流经线圈的电流 方向， 使所述线圈在同一工作瞬间产生同一方向的电动力 F;
e.以所述永磁铁二分之一轴向高度的等分线 X ― X 轴线为水平对称轴， 以所述上极 板、 永磁铁和下极板的中心轴线 Y --- Y 轴线为垂直对称轴， 所述双磁隙双线圈驱动器具有 在几何形状和磁性能方面左右对称及上下对称的二组磁路以及在几何形状和电性能方面左 右对称及上下对称的二组线图电路， 规定二个所述线圏串联连接后的绕向刚好相反， 二个 所述线圈的电磁线横截面积、 线圈图数、 线圈卷幅、 线圈电阻、 线圈电感量的绝对值和绕 线时的张力彼此相等， 二个所述线圈的电感量及其在往复运动过程中感应到的反电动势 (Back E l ec t r omo t i ve Fo r ce)因具有 1 8 0度相位角而互相抵消， 由此构成具有电阻负载特性 或近似于电阻负载特性的第一组双磁隙双线圈外磁式驱动器单元 02 ;
f . 在所述第一组双磁隙双线圈驱动器单元 02 的下极板外侧平面粘结一块具有适当厚 度的非导磁材料制成的同轴的圆片形 / 或圆环形隔板， 在所述圆片形 / 或圓环形隔板的另 外一侧平面又与所述换能器的第二组双磁隙双线團驱动器单元 02的下极板粘结固定， 由此 形成二组具有相斥型磁性能的双磁隙双线圈驱动器， 依此类推， 在第二组双磁隙双线圏驱 动器的上极板外侧平面再粘结一块具有适当厚度的非导磁材料制成的同轴的國片形 / 或圆 环形隔板， 在所述圆片形 / 或圆环形隔板的另外一倒平面又与所述换能器的第三组双磁隙 双线圈驱动器单元 02的上极板粘结固定， 所述第一组、 第二组、 第三组 ... ...双磁隙双线图 驱动器单元 02以同一根中心轴线 Y --- Y轴线为垂直对称轴线， 具有同一个所述线圈骨架、 同一个所述框架和所述托架、 同一个所述环筒状磁轭、 相同几何尺寸的所述圓片形 /或圆环 形隔板、 4个 / 或 6个以上所述环形磁隙及与之匹配的 4个 /或 6个以上所述线图， 由此构 成具有一对或一对以上相斥型磁铁和对称磁路及对称线團电路的超高灵敏度高保真外磁式 多驱动器换能器。
4.按照权利要求 1、 权利要求 2、 权利要求 3所述的具有对称磁路及对称线團电路的多 驱动器换能器， 其特征是： 与所述二组双磁隙双线圏驱动器单元 01 /或单元 02的下极板外 侧平面粘结固定的所述非导磁材料制成的同轴的圆片形 / 或圓环形隔板， 其厚度应确保具 有相斥型磁性能的所述二组双磁隙双线圈驱动器单元 01 /或单元 02仍然具有在几何形状和 磁性能方面左右对称及上下对称的二組磁路以及在几何形状和电性能方面左右对称及上下 对称的二组线圈电路。
5.按照权利要求 1、 权利要求 2、 权利要求 3所述的具有对称磁路及对称线图电路的多 驱动器换能器， 其特征是： 所述环筒状磁轭可以与所述垂直对称轴 Y --- Y 轴线同轴等径的 二段 /或二段以上轴向高度彼此相等的环筒状磁轭， 以及一个 /或一个以上具有适当厚度的 用非导磁材料制成的同轴的圆片形 / 或圆环形隔板粘结成为一个整体。
6.按照权利要求 1、 权利要求 2、 权利要求 3所述的具有对称磁路及对称线團电路的多 驱动器换能器， 其特征是： 所述托架环形凹槽上的设有排放磁路及线图电路散发的热能以 及减少所述换能器振动系统空气阻尼的所述穿透气孔， 当所述托架几何尺寸及结构强度允 许时， 每个所述穿透气孔具有尽可能大的投影面积并彼此相等， 所述穿透气孔的圃心或中 心线均设置在所述线圈骨架 /或所述同轴等径线圈的投影圆的圆周线上， 并且在所述换能器 振动系统上下振动时始终保持所述线图电路的所述左右对称状态.
7.按照权利要求 1、 权利要求 2、 权利要求 3所述的具有对称磁路及对称线图电路的多 驱动器换能器， 其特征是： 所述托架的底部设有一个法兰盘， 一个非导磁材料构成的框架 的一端与所述法兰盘联结回定， 所迷框架的另一端设有一个比所述弹波直径更大的法兰盘， 所述更大的法兰盘的轴心线部位设有一个内凸平台， 其轴心线部位设有一个内凸柱状体， 所述环筒状磁轭嵌入安装 /或粘结固定在所述法兰盘的所述内凸柱状体上， 由此构成同轴等 径的所述环形磁隙， 一个弹波被粘结固定在所述框架的环形平台面上， 所述框架与所述法 兰盘上均设有勻称的散热透气空间。
PCT/CN2012/000977 2011-07-21 2012-07-20 具有对称磁路及对称线圈电路的多驱动器换能器 WO2013010384A1 (zh)

Priority Applications (8)

Application Number Priority Date Filing Date Title
CA2885103A CA2885103A1 (en) 2011-07-21 2012-07-20 Multi-driver transducer having symmetrical magnetic circuits and symmetrical coil circuits
EP12814935.8A EP2876897A4 (en) 2011-07-21 2012-07-20 MULTIPLE EXCITATION CIRCUIT TRANSDUCER COMPRISING A SYMMETRICAL MAGNETIC CIRCUIT AND A SYMMETRIC COIL CIRCUIT
US14/416,025 US9774957B2 (en) 2011-07-21 2012-07-20 Multi-driver transducer having symmetrical magnetic circuit and symmetrical coil circuit
EA201590217A EA201590217A1 (ru) 2011-07-21 2012-07-20 Многодрайверный преобразователь, имеющий симметричные магнитные цепи и симметричные цепи катушек
KR1020157004537A KR20150058165A (ko) 2011-07-21 2012-07-20 대칭 자기 회로 및 대칭 코일 회로를 가진 멀티 드라이버 변환기
AU2012286430A AU2012286430B2 (en) 2011-07-21 2012-07-20 Multi-driver transducer having symmetrical magnetic circuit and symmetrical coil circuit
JP2015521923A JP2015522230A (ja) 2012-07-20 2012-07-20 対称的に配置する磁気回路並びにコイル回路を備えるマルチ駆動器変換器
SG11201501061TA SG11201501061TA (en) 2011-07-21 2012-07-20 Multi-driver transducer having symmetrical magnetic circuit and symmetrical coil circuit

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201110216363.5 2011-07-21
CN201110216363 2011-07-21

Publications (1)

Publication Number Publication Date
WO2013010384A1 true WO2013010384A1 (zh) 2013-01-24

Family

ID=47535394

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2012/000977 WO2013010384A1 (zh) 2011-07-21 2012-07-20 具有对称磁路及对称线圈电路的多驱动器换能器

Country Status (10)

Country Link
US (1) US9774957B2 (zh)
EP (1) EP2876897A4 (zh)
KR (1) KR20150058165A (zh)
CN (1) CN102892063B (zh)
AU (1) AU2012286430B2 (zh)
CA (1) CA2885103A1 (zh)
EA (1) EA201590217A1 (zh)
SG (1) SG11201501061TA (zh)
TW (1) TWI599242B (zh)
WO (1) WO2013010384A1 (zh)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016089676A1 (en) * 2014-12-05 2016-06-09 Knowles Electronics, Llc Receiver with coil wound on a stationary ferromagnetic core
US9872109B2 (en) 2014-12-17 2018-01-16 Knowles Electronics, Llc Shared coil receiver
CN109842841A (zh) * 2017-11-27 2019-06-04 深圳市三诺数字科技有限公司 一种扬声器装置

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9584921B2 (en) * 2014-07-15 2017-02-28 Nokia Technologies Oy Sound transducer
NL2017514B1 (en) * 2016-09-22 2018-03-29 Univ Delft Tech Loudspeaker unit with multiple drive units
CN106375915B (zh) * 2016-10-31 2024-04-16 深圳市冠旭电子股份有限公司 一种扬声器及耳机
US10306370B2 (en) * 2017-01-13 2019-05-28 Harman International Industries, Incorporated Dual coil electrodynamic transducer with channels for voice coil cooling
CN106954161A (zh) * 2017-05-13 2017-07-14 门立山 一种多磁隙多音圈扬声器
CN108600920A (zh) * 2018-01-08 2018-09-28 深圳市韶音科技有限公司 一种骨传导扬声器
US10631094B2 (en) * 2018-06-08 2020-04-21 Harman International Industries, Incorpcrated Inverted motor transducer with central vent
CN109218933B (zh) * 2018-08-04 2021-06-15 瑞声科技(新加坡)有限公司 微型发声器件
DK180111B1 (en) * 2018-10-04 2020-05-06 Upper Level Aps A magnetic system for an electromechanical transducer
CN109348378A (zh) * 2018-10-18 2019-02-15 北京新能源汽车股份有限公司 一种扬声器及汽车
CN110719552B (zh) * 2019-10-25 2021-09-03 海鹰企业集团有限责任公司 一种低频宽带大功率电动式换能器
CN110830890B (zh) * 2019-11-11 2021-12-28 歌尔股份有限公司 音圈组件及扬声器
WO2021150278A1 (en) * 2020-01-21 2021-07-29 Clean Energy Labs, Llc Electroacoustic drivers and loudspeakers containing same
US20230164492A1 (en) 2020-04-08 2023-05-25 Michel OLTRAMARE Dual axial magnetic flux induction speaker
CN113891230A (zh) * 2020-07-02 2022-01-04 宁波升亚电子有限公司 电声转换装置及其制造方法
WO2022062332A1 (zh) * 2020-09-23 2022-03-31 苏州登堡电子科技有限公司 骨传导扬声器复合华司磁路组件
CN112383854B (zh) * 2020-11-30 2022-05-03 瑞声新能源发展(常州)有限公司科教城分公司 发声装置
FR3123533B1 (fr) * 2021-05-31 2023-12-08 Devialet Moteur de Haut-parleur à deux aimants opposés
US20220386035A1 (en) * 2021-06-01 2022-12-01 Resonado, Inc. Speaker comprising split gap plate structure

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09322294A (ja) 1996-05-27 1997-12-12 Sony Corp トリプルコイルスピーカ
US20050099255A1 (en) 2000-08-18 2005-05-12 Fan Zhang Transducer with dual coil and dual magnetic gap
WO2009046682A1 (fr) * 2007-10-13 2009-04-16 Fan Zhang Système acoustique multimédia ayant une interface numérique à fréquence audio
CN101415143A (zh) * 2007-10-15 2009-04-22 张凡 具有音频数字接口的多媒体音响系统
CN101711008A (zh) * 2007-10-13 2010-05-19 张凡 具有音频数字接口的多媒体音响系统
CN102118672A (zh) * 2011-03-28 2011-07-06 苏州上声电子有限公司 扬声器振动膜片及扬声器

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000067523A2 (en) * 1999-04-29 2000-11-09 New Transducers Limited Moving coil driver
CN1119918C (zh) * 1999-08-20 2003-08-27 张凡 双线圈双磁隙换能器
CN101409853A (zh) * 2007-10-13 2009-04-15 张凡 具有音频数字接口的多媒体音响系统
US9277325B2 (en) * 2008-02-21 2016-03-01 Fan Zhang Inner magnetic transducer with multiple magnetic gaps and multiple coils and preparation method thereof
US8781150B2 (en) * 2011-02-14 2014-07-15 Robert Bosch Gmbh Multiple magnetic air gap motor

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09322294A (ja) 1996-05-27 1997-12-12 Sony Corp トリプルコイルスピーカ
US20050099255A1 (en) 2000-08-18 2005-05-12 Fan Zhang Transducer with dual coil and dual magnetic gap
WO2009046682A1 (fr) * 2007-10-13 2009-04-16 Fan Zhang Système acoustique multimédia ayant une interface numérique à fréquence audio
CN101711008A (zh) * 2007-10-13 2010-05-19 张凡 具有音频数字接口的多媒体音响系统
CN101415143A (zh) * 2007-10-15 2009-04-22 张凡 具有音频数字接口的多媒体音响系统
CN102118672A (zh) * 2011-03-28 2011-07-06 苏州上声电子有限公司 扬声器振动膜片及扬声器

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP2876897A4 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016089676A1 (en) * 2014-12-05 2016-06-09 Knowles Electronics, Llc Receiver with coil wound on a stationary ferromagnetic core
US9888322B2 (en) 2014-12-05 2018-02-06 Knowles Electronics, Llc Receiver with coil wound on a stationary ferromagnetic core
US9872109B2 (en) 2014-12-17 2018-01-16 Knowles Electronics, Llc Shared coil receiver
CN109842841A (zh) * 2017-11-27 2019-06-04 深圳市三诺数字科技有限公司 一种扬声器装置
CN109842841B (zh) * 2017-11-27 2024-04-02 深圳市三诺数字科技有限公司 一种扬声器装置

Also Published As

Publication number Publication date
CN102892063A (zh) 2013-01-23
TW201315258A (zh) 2013-04-01
AU2012286430B2 (en) 2016-07-14
KR20150058165A (ko) 2015-05-28
SG11201501061TA (en) 2015-04-29
EP2876897A4 (en) 2016-01-13
EA201590217A1 (ru) 2015-07-30
US9774957B2 (en) 2017-09-26
AU2012286430A1 (en) 2015-03-12
CN102892063B (zh) 2018-05-01
CA2885103A1 (en) 2013-01-24
TWI599242B (zh) 2017-09-11
EP2876897A1 (en) 2015-05-27
US20150271605A1 (en) 2015-09-24

Similar Documents

Publication Publication Date Title
WO2013010384A1 (zh) 具有对称磁路及对称线圈电路的多驱动器换能器
CN1121809C (zh) 扬声器
KR101265824B1 (ko) 멀티 자기 갭 다중 코일 내부 자성 타입 변환기 및 그 제조방법
TW201309049A (zh) 雙磁鐵雙磁隙雙線圈換能器的驅動器
US7706563B2 (en) Concentric radial ring motor
US20060210107A1 (en) Speaker driver
US8135162B2 (en) Multiple magnet loudspeaker
CA2838456C (en) An electromechanical-electroacoustic transducer with low thickness and high travel range and relevant manufacturing method
JP2008516518A (ja) 二重マグネットを備えた磁気回路及びそれを利用したスピーカーと振動発生装置
US20050099255A1 (en) Transducer with dual coil and dual magnetic gap
US7676053B2 (en) Electrodynamic loudspeaker
WO2001015493A1 (fr) Transducteur a deux bobines et a deux entrefers magnetiques
JP2009267779A (ja) 電磁型電気音響変換器
WO2024007509A1 (zh) 一种双振膜受话器及电子设备
JPH06233384A (ja) スピーカ
CN2373961Y (zh) 扬声器
JP2003209898A (ja) 磁気回路およびこの磁気回路を用いたスピーカ
JPH0918992A (ja) スピーカーユニット
JP4399139B2 (ja) ２コイル２磁気空隙の変換器
CN115955636A (zh) 一种平面扬声器及耳机
JP2015522230A (ja) 対称的に配置する磁気回路並びにコイル回路を備えるマルチ駆動器変換器
JPH11122695A (ja) 電気音響変換器用磁気回路
WO2024036714A1 (zh) 发声器件
JPH099391A (ja) 反発磁気回路型スピーカ
JPH04135096U (ja) スピーカ

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 12814935

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

WPC Withdrawal of priority claims after completion of the technical preparations for international publication

Ref document number: 201110216363.5

Country of ref document: CN

Date of ref document: 20131205

Free format text: WITHDRAWN AFTER TECHNICAL PREPARATION FINISHED

ENP Entry into the national phase

Ref document number: 2015521923

Country of ref document: JP

Kind code of ref document: A

WWE Wipo information: entry into national phase

Ref document number: 201590217

Country of ref document: EA

WWE Wipo information: entry into national phase

Ref document number: 2012814935

Country of ref document: EP

ENP Entry into the national phase

Ref document number: 20157004537

Country of ref document: KR

Kind code of ref document: A

ENP Entry into the national phase

Ref document number: 2012286430

Country of ref document: AU

Date of ref document: 20120720

Kind code of ref document: A

ENP Entry into the national phase

Ref document number: 2885103

Country of ref document: CA

REG Reference to national code

Ref country code: BR

Ref legal event code: B01A

Ref document number: 112015001291

Country of ref document: BR

WWE Wipo information: entry into national phase

Ref document number: 14416025

Country of ref document: US

REG Reference to national code

Ref country code: BR

Ref legal event code: B01E

Ref document number: 112015001291

Country of ref document: BR

ENPW Started to enter national phase and was withdrawn or failed for other reasons

Ref document number: 112015001291

Country of ref document: BR