WO2020199346A1 - Croisillon de plan conducteur et haut-parleur à conduction osseuse - Google Patents

Croisillon de plan conducteur et haut-parleur à conduction osseuse Download PDF

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Publication number
WO2020199346A1
WO2020199346A1 PCT/CN2019/091045 CN2019091045W WO2020199346A1 WO 2020199346 A1 WO2020199346 A1 WO 2020199346A1 CN 2019091045 W CN2019091045 W CN 2019091045W WO 2020199346 A1 WO2020199346 A1 WO 2020199346A1
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WIPO (PCT)
Prior art keywords
elastic wave
conductive plane
voice coil
ring
iron
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PCT/CN2019/091045
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English (en)
Chinese (zh)
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朱达云
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朱达云
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Application filed by 朱达云 filed Critical 朱达云
Publication of WO2020199346A1 publication Critical patent/WO2020199346A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2400/00—Loudspeakers
    • H04R2400/11—Aspects regarding the frame of loudspeaker transducers

Definitions

  • the present invention relates to the technical field of loudspeakers, in particular, to a conductive plane elastic wave, a bone conduction speaker with the conductive plane elastic wave, and a vibrating bone conduction speaker with the conductive plane elastic wave.
  • the speaker structure generally includes magnets, U-shaped irons, paper cones, voice coils, sound films, elastic waves, etc.
  • Bouncing is also called a positioning piece, which is generally used to fix the position of the voice coil so that the horn can ensure vertical back and forth movement between the voice coil and the paper cone when it vibrates.
  • wires are often directly stitched on the elastic waves. When the horn is sounding, the metal wire and the elastic wave resonate and jump up and down, forming a rope skipping phenomenon, affecting the vibration of the elastic wave, causing sound distortion and affecting the sound effect of the speaker.
  • the existing bomb waves cannot adjust the amplitude of the jitter, so it needs to be improved urgently.
  • the perforated wire elastic wave includes an elastic wave body, a wave crest, and a wave trough.
  • the elastic wave body is composed of multiple wave crests and multiple wave troughs.
  • the inner wall of the wave trough is fixedly connected with a support box, both ends of the support box are fixedly connected with a Vientiane bearing, the inner ring of the Vientiane bearing is slidably connected with a wire, and the two supporting boxes are connected by wires to form a U-shaped arc at the top of the wave crest
  • the wire is located on the inner surface of the support box and is fixedly connected to the limit disk.
  • the support box is provided with the support box, which is beneficial for the elastic vibration effect to be more delicate and enhance the sound effects of speakers, speakers, etc., by providing a limit disk, it is beneficial to prevent the wire from moving inside the support box, thereby changing the size of the U-shaped arc, thereby affecting The vibration of the wave crest reduces the sound effect.
  • the support rod By providing the first spring and the second spring, it is beneficial for the support rod to be stressed and buffered, which effectively prevents the wire from being damaged by the force and affecting the sound effect of the elastic wave.
  • Chinese patent document CN201721193063.9 discloses a conductive plane elastic wave.
  • the conductive plane elastic wave includes a layer.
  • the upper part of the layer is connected to a second insulating layer through a glue layer, and the bottom of the layer is connected to the first insulating layer through a glue layer.
  • the bottom of an insulating layer is connected to the metal layer through a glue layer.
  • the metal layer, the first insulating layer, the glue layer, and the second insulating layer have the same planar structure.
  • the planar structure includes an inner ring, an outer ring and a connecting portion.
  • the inner ring There is an outer ring on the outer circumference, and the outer ring and the inner ring are connected by a connecting part.
  • the connecting part has six S-shaped structures.
  • the plane structure of the layer also includes the first welding part and the first welding part.
  • Two welding parts, the first welding part and the second welding part are respectively located at the extension part located at the upper and lower ends of the outer ring, the first welding part is connected with the second welding part through two upper and lower S-shaped structures, the The second welding part is located at the other port of the two upper and lower S-shaped structures.
  • Chinese patent document CN201721193063.9 realizes resonance with the voice coil through distortion and deformation, reduces power consumption, and uses a unique laminated structure to reduce the thickness of traditional elastic waves.
  • the first welding part and the second welding part are respectively arranged at the extension parts of the upper and lower ends of the outer ring.
  • the wire needs to pass through the elastic wave, the installation process is more complicated, and the wire is easily broken due to the vibration of the elastic wave.
  • one of the objectives of the present invention is to provide a conductive plane elastic wave, by arranging a pair of voice coil welding points and wire welding points on the inner ring and outer ring, respectively, and The connection part is provided with copper foil to form electrical conduction, thereby realizing electrical conduction between the voice coil and the external power source, and the thickness of the conductive plane elastic wave is only 0.05mm-3mm.
  • the speaker using the conductive plane elastic wave conducts electricity through the conductive plane elastic wave, avoiding the use of brocade wire, which greatly reduces the thickness of the speaker, and also avoids the speaker loss due to the fracture of the brocade wire, and extends the service life of the product. And optimize the production process of the product.
  • the second object of the present invention is to provide a bone conduction speaker with the above-mentioned conductive elastic wave, which can increase the vibration amplitude, improve the sensitivity and the mechanical efficiency of bone conduction by cleverly arranging the ring-shaped shrapnel and the design of the bracket.
  • the third object of the present invention is to provide a vibrating bone conduction speaker, which can increase the vibration amplitude and the mechanical efficiency of bone conduction by cleverly arranging ring-shaped shrapnel, elastic wave and ring-shaped bracket design.
  • the fourth object of the present invention is to provide a loudspeaker with the above conductive plane elastic wave.
  • a conductive plane elastic wave comprising an outer ring, an inner ring and several connecting parts; the several connecting parts are evenly distributed between the outer ring and the inner ring to connect the The outer ring and the inner ring; the conductive plane elastic wave is provided with at least two pairs of voice coil welding points and wire welding points; the voice coil welding points are arranged on the inner ring, and the wire welding points Set on the outer ring.
  • At least two pairs of the voice coil welding points and the wire welding points are electrically connected through copper foil, and at least a part of the copper foil is provided on the connecting portion.
  • copper foil is provided on at least one pair of the connecting portions.
  • the outer ring is a ring or two or more rings sleeved, and adjacent rings are connected by the connecting portion.
  • the outermost side of the outer ring protrudes at least one lug along the radial direction of the conductive plane elastic wave, and the wire welding point is arranged on the lug.
  • the conductive plane elastic wave includes a substrate layer, one end surface of the substrate layer is bonded with a first insulating layer by glue, and the first insulating layer is bonded with a copper foil layer by glue.
  • the copper foil layer is bonded to a second insulating layer by glue; the first insulating layer overlaps with the substrate layer; the copper foil layer and the second insulating layer overlap a part or all of the substrate layer .
  • the substrate layer is manganese sheet, stainless steel, plastic, chemical material or fiber material.
  • the thickness of the conductive plane elastic wave is 0.05mm-3mm.
  • the bone conduction speaker with the conductive plane elastic wave includes an outer bracket and a U iron.
  • the center of the U iron forms a groove with a U-shaped cross section; the groove of the U iron is provided with a magnet, and the top of the magnet is provided with a washer , An annular gap is formed between the magnet and the U iron; the top periphery of the U iron is provided with a ring support, and the top surface of the ring support is equipped with the conductive plane elastic wave; the inner ring of the conductive plane elastic wave is assembled on the lower surface There is a voice coil, the voice coil is inserted into the annular gap; the center of the conductive plane elastic wave is equipped with a pillar, the middle of the pillar is provided with a circular shrapnel, and the top of the pillar is provided with a conductive sheet; The periphery of the elastic sheet is assembled on the top of the outer bracket; the U iron, the ring bracket and the conductive elastic wave are all contained in the outer bracket.
  • a protrusion is provided on the outside of the outer support, and the protrusion is connected with the conductive plane elastic wave via a flexible wire, and the wire welding point is provided on the protrusion.
  • the vibrating bone conduction speaker with the conductive plane elastic wave includes a U iron and a magnet.
  • the center of the U iron forms a groove with a U-shaped cross section.
  • the magnet is accommodated in the groove and is connected to the U iron.
  • a magnetic gap is formed between the irons; the top of the magnet is provided with a washer; the top or side surface of the groove is equipped with an annular elastic piece, the periphery of the annular elastic piece is fixed to the bottom or the middle of a ring bracket; the top of the ring bracket
  • the conductive plane elastic wave is assembled, the inner wall of the conductive plane elastic wave is equipped with a voice coil, the top of the voice coil is provided with a conductive sheet, and the bottom of the voice coil extends into the magnetic gap.
  • the speaker with the above-mentioned conductive plane elastic wave includes a U iron, a magnet, a washer, a bracket, the conductive plane elastic wave, a voice coil, a dust cap and a paper cone;
  • the U iron center forms a U-shaped cross section
  • the groove is provided with the magnet, the top of the magnet is provided with the washer, an annular gap is formed between the magnet and the U iron; one end of the voice coil is inserted into the annular gap, so
  • the conductive plane elastic wave sleeve is arranged outside the voice coil and is electrically connected to it by welding;
  • the paper cone is in the shape of a horn and sleeved on the upper part of the voice coil;
  • the dust cap is accommodated in the paper
  • the horn cavity of the basin covers the voice coil;
  • the bracket is sleeved outside the U iron.
  • the conductive plane elastic wave of the present invention is provided with voice coil welding points on the inner ring and wire welding points on the outer ring, and the voice coil welding points and the wire welding points are connected through the The part forms electrical conduction, thereby achieving electrical conduction between the voice coil and the external power supply.
  • the thickness of the conductive plane elastic wave is 0.05mm-3mm.
  • the speaker using the conductive plane elastic wave conducts conduction through the conductive plane elastic wave, avoiding the use of brocade wire and the loss of sound of the speaker due to the broken brocade wire, thereby greatly reducing the thickness of the speaker and improving the quality of the speaker.
  • the power wire is assembled at the wire welding point of the outer ring, and the wire does not need to bypass the conductive plane elastic wave, and will not vibrate with the conductive plane elastic wave, preventing the wire from breaking, extending the service life and reliability of the product, and setting the wire welding point on the outer ring , It is convenient for wire installation, and the production process is optimized.
  • the voice coil and the conductive sheet are supported by the conductive elastic wave and circular shrapnel, thereby expanding the amplitude, reducing power consumption, and improving the mechanical efficiency of bone conduction.
  • the voice coil and the wire are electrically connected through the conductive elastic wave. There is no trouble with the voice coil lead.
  • the production process is optimized. There is no problem of disconnection during continuous operation of the speaker. The service life is improved.
  • the conductive elastic wave reduces the overall height of the speaker. , So that it can be made smaller and thinner.
  • the wire welding point of the conductive elastic wave extends out of the outer bracket through the tabs, which facilitates wire installation and optimizes the production process.
  • the non-fixed magnetic circuit is used, and the non-fixed magnetic circuit is affected by the electromotive force of the voice coil.
  • the voice coil is bonded to the shrapnel to produce a stronger bass effect.
  • the vibrating bone conduction speaker of the present invention adopts a non-fixed magnetic circuit.
  • the non-fixed magnetic circuit can be generated by the electromotive force of the voice coil. Stronger bass effect.
  • the annular shrapnel and the elastic wave to support the annular bracket and the voice coil, the diameter and thickness of the product are compressed, the vibration amplitude is increased, the power consumption is reduced, and the mechanical efficiency of bone conduction is improved.
  • the speaker with conductive plane elastic wave has a thin overall thickness, long life, and simple production process.
  • FIG. 1 is a schematic diagram of the structure of the conductive plane elastic wave of the present invention.
  • FIG. 2 is a schematic structural diagram of another embodiment of the conductive plane elastic wave of the present invention.
  • FIG. 3 is a schematic structural diagram of still another embodiment of the conductive plane elastic wave of the present invention.
  • FIG. 4 is a schematic diagram of the cross-sectional structure of the copper foil part of the conductive plane elastic wave of the present invention.
  • Fig. 5 is a schematic structural diagram of a bone conduction speaker with conductive elastic waves according to the present invention.
  • Fig. 6 is a schematic diagram of the structure of the vibrating bone conduction speaker of the present invention.
  • FIG. 7 is a schematic diagram of another structure of the vibrating bone conduction speaker of the present invention.
  • Fig. 8 is another structural schematic diagram of the vibrating bone conduction speaker of the present invention.
  • Fig. 9 is a top view of the speaker with conductive plane elastic wave according to the present invention.
  • Fig. 10 is a sectional view taken along the line A-A of Fig. 9;
  • Fig. 11 is an exploded structural view of Fig. 9.
  • a conductive planar elastic wave 10 includes an outer ring 11, an inner ring 12 and several connecting parts 13.
  • the inner ring 12 is located in the outer ring 11, a number of the connecting portions 13 are evenly distributed between the outer ring 11 and the inner ring 12, and the first and the tail ends of the connecting portion 13 are respectively
  • the inner ring 12 and the outer ring 11 are fixedly connected.
  • This hollow structure design greatly reduces the thickness and weight of the conductive plane elastic wave 10, eliminates the traditional elastic wave structure that requires bumps, and realizes the resonance between the conductive plane elastic and the voice coil under the condition of being very thin and light. Sound effects.
  • the outer ring 11 and the inner ring 12 are provided with a wire welding point 15 and a voice coil welding point 16 in pairs.
  • the wire welding point 15 is used to assemble a power supply wire
  • the voice coil welding point 16 is used to assemble a voice coil lead.
  • the wire welding point 15 is arranged on the outer ring 11, and the voice coil welding point 16 is arranged on the inner ring 12.
  • the voice coil welding point 16 and the wire welding point 15 are electrically connected through a copper foil 17. At least a part of the copper foil 17 is provided on the connecting portion 13 and extends to the corresponding voice coil welding point 16 Solder point 15 with the wire, thereby forming electrical conduction between the two.
  • the voice coil and the power wire are in electrical conduction with the conductive plane elastic wave.
  • the use of brocade wire is avoided, and there is no need to provide vibration space for it, which greatly reduces the thickness of the speaker. It also avoids the loss of sound of the speaker due to the broken wire of the brocade, thereby improving the quality of the speaker.
  • the wire welding points 15 are respectively provided with through holes 151, and the through holes 151 are used for assembling the power wire, which is convenient and efficient in installation.
  • the conductive plane elastic wave 10 when the speaker structure is small, the conductive plane elastic wave 10 only needs to have one circle of the ring 11a to meet the requirement.
  • the radial direction of the conductive plane elastic wave needs to be enlarged accordingly.
  • the outer ring 11 needs to be set as two or more rings 11a sleeved, and adjacent The rings 11a are connected by the connecting portion 13.
  • the outermost part of the outer ring 11 extends along the radial direction of the conductive plane elastic wave at least one tab 14, and the wire welding point 15 is provided on the tab 14.
  • the wire welding point 15 is arranged on the outer ring or the tab 14, so that the external source wire does not need to bypass the conductive plane elastic wave, and the external source wire is prevented from vibrating and prolonged simultaneously with the conductive plane elastic wave. The service life of the external source wire is improved.
  • the connecting portion 13 is linear or curvilinear, according to s-shape, ⁇ -shape, W-shape, M-shape and so on. It should be understood that the shape of the connecting portion 13 only needs to be able to achieve the purpose of the present invention, and the present invention does not limit the shape of the connecting portion 13.
  • the number of the connecting parts 13 is set to two or more. It should be understood that as long as the purpose of the present invention is achieved, the number of the connecting parts 13 in this laboratory is not limited.
  • the connecting portion 13 is evenly distributed between the outer ring 11 and the inner ring 12, so that the vibration of the conductive plane elastic wave is uniform and stable.
  • the conductive plane elastic wave includes a substrate layer 18, one end surface of the substrate layer 18 is bonded to a first insulating layer 19 by glue 112, and the first insulating layer 19 is glued by glue 112. Bond a copper foil layer 110, the copper foil layer 110 is bonded to a second insulating layer 111 by glue; the first insulating layer 19 overlaps the base material layer 18; the copper foil layer 110 and the The second insulating layer 111 overlaps a part or all of the base layer 18.
  • the substrate layer 18 is manganese sheet, stainless steel, plastic, chemical material or fiber material.
  • the thickness of the conductive plane elastic wave is 0.05mm-3mm.
  • the present invention provides a bone conduction speaker with conductive plane elastic waves, including an outer bracket 20 and a U iron 31.
  • the center of the U iron 31 is U-shaped in cross section. ⁇ 311.
  • the groove 331 is provided with a magnet 32, the top of the magnet 32 is provided with a washer 33, and an annular gap 42 is formed between the magnet 32 and the U iron 31.
  • An annular bracket 34 is provided on the periphery of the top of the U iron 31, and a conductive plane elastic wave 10 is mounted on the top surface of the annular bracket 34.
  • the conductive plane elastic wave 10 covers the groove 311 of the U iron, and the inner ring
  • the lower surface of 12 is provided with a voice coil welding point 16, and the lower surface of the outer ring 11 is provided with a wire welding point 15.
  • the lower surface of the inner ring 12 is equipped with a voice coil 37, and the voice coil 37 is inserted into the annular gap 42.
  • a pillar 313 is installed at the center of the conductive elastic wave 10.
  • the pillar 313 may be assembled at the center of the upper surface of the conductive elastic wave 10 or pass through the center of the upper surface of the conductive elastic wave 10.
  • a circular elastic sheet 36 is provided in the middle of the pillar 313, and a conductive sheet 38 is provided on the top of the pillar 313.
  • the periphery of the circular elastic piece 36 is assembled on the top of the outer bracket 20.
  • the U iron 31, the ring support 34 and the conductive planar elastic wave 10 are all contained in the outer support 20.
  • the voice coil 37 vibrates under the action of a magnetic field, which drives the conductive plane elastic wave 10 and the circular elastic plate 36 to vibrate synchronously, and transmits the vibration to the conductive plane. ⁇ 38.
  • the outer bracket 20 prevents sound leakage of the bone conduction speaker.
  • the conductive plane elastic wave only needs one circle of the ring 11a to meet the requirement.
  • the radial direction of the conductive plane elastic wave needs to be enlarged accordingly.
  • the outer ring 1 needs to be set as two or more rings 11a sleeved, and adjacent The rings 11a are connected by the connecting portion 13.
  • the outermost part of the outer ring 11 extends along the radial direction of the conductive plane elastic wave with at least one tab 354, and the wire welding point 15 is provided on the tab 354.
  • the wire welding point 55 is arranged on the outer ring or the protrusion 354, so that the external source wire does not need to bypass the conductive plane elastic wave, and the external source wire is prevented from vibrating and prolonged simultaneously with the conductive plane elastic wave. The service life of the external source wire is improved.
  • the outer bracket 20 protrudes from the protrusion 354, and the protrusion 354 is connected to the conductive plane elastic wave via a flexible wire 355.
  • the flexible wire 355 has a certain degree of slack during assembly, thereby preventing breakage during vibration.
  • the U iron 31 is directly assembled on the bottom surface of the outer bracket 20.
  • the U iron 31 may also be erected on the bottom surface of the outer bracket 20. In this case, the U iron 31 vibrates in accordance with the vibration of the voice coil 37. This way can produce a good bass effect.
  • a vibrating bone conduction speaker with conductive plane elastic wave includes U iron 41, magnet 42, washer 43, ring bracket 44, ring elastic plate 45, conductive plane elastic wave 10.
  • Voice coil 47 and conductive sheet 48 The center of the U iron 41 forms a groove 411 with a U-shaped cross section.
  • the magnet 42 is accommodated in the groove 411 and forms a magnetic gap 412 between the U iron 41 and the U iron 41.
  • the top of the magnet 42 is provided with the washer 43, and the top surface of the U iron 41 is equipped with the annular elastic piece 45.
  • the periphery of the annular elastic piece 45 is fixedly connected to the bottom of the annular bracket 44.
  • the top is assembled with the conductive plane elastic wave 10, the inner wall of the conductive plane elastic wave 10 is welded with the voice coil 47, the top of the voice coil 47 is provided with a conductive sheet 48, and the bottom of the voice coil 47 extends into the magnetic Gap 412.
  • the voice coil 47 vibrates under the action of a magnetic field to drive the elastic wave 10
  • the conductive plate 48, the ring bracket 44 and the ring spring plate 45 vibrate synchronously
  • the U iron 41 also vibrates with the vibration of the voice coil 47, thereby producing a good bass effect.
  • the annular elastic piece 45 is set as an elastic material, so as to bring a better bass effect.
  • the periphery of the top surface of the groove 411 protrudes outward from a ring-shaped ear 413, and the ring-shaped ear 413 is equipped with the ring-shaped elastic piece 45 .
  • the vibration modes of the voice coil 47 and the U iron 41 are the same as those in FIG. 7, and will not be repeated here.
  • the U iron is a magnetically permeable material, and the magnetic field strength is improved by setting the U iron as a magnetically permeable material.
  • Both the washer and the U iron mentioned in this application use metal materials with higher magnetic permeability. According to permalloy, electrical passivated iron, silicon steel sheet, and low carbon steel, low carbon steel is commonly used.
  • the speaker 50 with the above-mentioned conductive plane elastic wave includes a U iron 51, a magnet 52, a washer 53, a bracket 54, a conductive plane elastic wave 56, a voice coil 57, and dustproof Cap 58 and paper cone 59.
  • the center of the U iron 51 forms a groove 511 with a U-shaped cross section.
  • a magnet 52 is arranged in the groove 511, a washer 53 is arranged on the top of the magnet 52, and an annular gap 512 is formed between the magnet 52 and the U iron 51.
  • One end of the voice coil 57 is inserted into the annular gap 512.
  • the conductive plane elastic wave 56 is sleeved outside the voice coil 57 and is electrically connected to it by welding.
  • the paper cone 59 has a trumpet shape and is sleeved on the upper part of the voice coil 57.
  • the dust cap 58 is accommodated in the horn cavity of the paper cone 59 and covers the voice coil 57.
  • the bracket 54 is sleeved on the outside of the U iron 51.
  • annular bearing platform 542 is provided in the middle of the bracket 54, and the annular bearing platform 542 supports the outer ring of the conductive plane elastic wave 56.
  • Another annular bearing platform 543 is provided on the top of the bracket 54, and the annular bearing platform 543 supports the paper cone 59.
  • the paper cone 59 and the conductive plane elastic wave 56 are installed stably.
  • the bracket 54 is also provided with two terminals 544.
  • the inside of the two terminals 544 are connected to the conductive plane elastic wire welding point, and the outside is used to connect to an external power line.
  • the voice coil 57 vibrates under the action of a magnetic field, which drives the conductive plane elastic wave 56 to vibrate synchronously, and transmits the vibration to the paper cone 59 to promote air compression to generate sound.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)

Abstract

La présente invention concerne un croisillon de plan conducteur, qui comprend une bague extérieure, une bague intérieure et une pluralité de pièces de liaison; la pluralité des pièces de liaison est répartie de manière égale entre la bague extérieure et la bague intérieure de manière à relier la bague extérieure et la bague intérieure; l'anneau intérieur est pourvu sur celui-ci d'au moins deux points de soudure de bobine mobile pour l'assemblage d'une bobine mobile, et l'anneau extérieur est pourvu sur celui-ci d'au moins deux points de soudure de fil pour l'assemblage d'un fil d'alimentation électrique, au moins deux paires des points de soudure de bobine mobile et des points de soudure de fil formant une conduction électrique au moyen des pièces de connexion. Dans le croisillon plan conducteur, au moyen de points de soudage de bobine acoustique disposés sur la bague intérieure et des points de soudage de fil disposés sur la bague extérieure, les points de soudage de bobine acoustique et les points de soudage de fil forment une conduction électrique au moyen des parties de connexion, ce qui permet d'obtenir une conductivité électrique entre la bobine acoustique et la source d'alimentation externe, et de réduire l'épaisseur du croisillon de plan conducteur à 0,05 mm-3 mm, ce qui réduit considérablement l'épaisseur d'un haut-parleur; en outre, un fil de bobine acoustique est soudé sur les points de soudage de la bague interne du croisillon de plan conducteur sans avoir besoin de connecter un fil conducteur, ce qui permet d'optimiser le processus de production.
PCT/CN2019/091045 2019-04-04 2019-06-13 Croisillon de plan conducteur et haut-parleur à conduction osseuse WO2020199346A1 (fr)

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CN201910273241.6A CN109982219A (zh) 2019-04-04 2019-04-04 导电平面弹波和骨传导扬声器
CN201910273241.6 2019-04-04

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CN203708462U (zh) * 2013-05-22 2014-07-09 龙观桂 一种扬声器弹波
US20170048622A1 (en) * 2015-08-10 2017-02-16 AAC Technologies Pte. Ltd. Speaker
CN107484083A (zh) * 2017-09-18 2017-12-15 东莞市赞歌声学科技有限公司 一种导电平面弹波
CN107580286A (zh) * 2017-09-18 2018-01-12 东莞市赞歌声学科技有限公司 一种新型弹波的扬声器

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