EP3758390A1 - Line-array-lautsprecher - Google Patents

Line-array-lautsprecher Download PDF

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Publication number
EP3758390A1
EP3758390A1 EP19188329.7A EP19188329A EP3758390A1 EP 3758390 A1 EP3758390 A1 EP 3758390A1 EP 19188329 A EP19188329 A EP 19188329A EP 3758390 A1 EP3758390 A1 EP 3758390A1
Authority
EP
European Patent Office
Prior art keywords
speaker
conductive
coil
line array
speaker module
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
EP19188329.7A
Other languages
English (en)
French (fr)
Other versions
EP3758390B1 (de
Inventor
Sungpil Na
Youngnam Lee
Myeongku Kang
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Daehong Technew Co Ltd
Original Assignee
Daehong Technew Co Ltd
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Publication of EP3758390A1 publication Critical patent/EP3758390A1/de
Application granted granted Critical
Publication of EP3758390B1 publication Critical patent/EP3758390B1/de
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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
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
    • H04R1/40—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers
    • H04R1/403—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers loud-speakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
    • H04R1/40—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers
    • H04R1/406—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers microphones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/06—Arranging circuit leads; Relieving strain on circuit leads
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
    • H04R1/2807—Enclosures comprising vibrating or resonating arrangements
    • H04R1/2811—Enclosures comprising vibrating or resonating arrangements for loudspeaker transducers
    • 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
    • H04R9/046—Construction
    • 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
    • H04R9/046—Construction
    • H04R9/047—Construction in which the windings of the moving coil lay in the same plane
    • H04R9/048—Construction in which the windings of the moving coil lay in the same plane of the ribbon type
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
    • H04R1/2807—Enclosures comprising vibrating or resonating arrangements
    • H04R1/2815—Enclosures comprising vibrating or resonating arrangements of the bass reflex type
    • H04R1/2823—Vents, i.e. ports, e.g. shape thereof or tuning thereof with damping material
    • H04R1/2826—Vents, i.e. ports, e.g. shape thereof or tuning thereof with damping material for loudspeaker transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
    • H04R1/34—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means
    • H04R1/345—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means for loudspeakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
    • H04R2201/40—Details of arrangements for obtaining desired directional characteristic by combining a number of identical transducers covered by H04R1/40 but not provided for in any of its subgroups
    • H04R2201/403—Linear arrays of transducers
    • 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
    • H04R2209/027—Electrical or mechanical reduction of yoke vibration
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/04—Plane diaphragms
    • H04R7/06—Plane diaphragms comprising a plurality of sections or layers
    • H04R7/10—Plane diaphragms comprising a plurality of sections or layers comprising superposed layers in contact
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/16—Mounting or tensioning of diaphragms or cones
    • H04R7/18—Mounting or tensioning of diaphragms or cones at the periphery
    • H04R7/20—Securing diaphragm or cone resiliently to support by flexible material, springs, cords, or strands

Definitions

  • the present disclosure relates to a line array speaker in which a plurality of speaker modules is linearly arranged, and more particularly to a line array speaker for maximizing advantages thereof using flat-panel speaker modules embedded therein.
  • a line array speaker has a great difference in structure and performance in terms of a loudspeaker sound as compared to a typical point source speaker. As the space increases in size, the use of the line array speaker may be more advantageous than the use of the typical point source speaker.
  • the line array speaker is a group of omni-directional radiation speaker elements.
  • the line array speaker may refer to a speaker device in which speaker elements are linearly arranged while being spaced apart from each other at intervals of a short distance.
  • the line array speaker can be very effectively used to emit sound within a long distance region.
  • the speaker elements arranged in the line array speaker may be combined with a speaker horn formed as a separate special structure by which wavefronts of sound waves can be emitted in a plane. If a specially-structured speaker is coupled to the line array speaker, the entire speaker device may excessively increase in size and may also be complicated in structure.
  • Korean Utility Model Registration No. 20-0387458 has disclosed technology for a line array speaker horn.
  • Patent Document 0001 Korean Utility Model Registration No. 20-0387458
  • the present disclosure relates to a line array speaker in which speaker modules are linearly arranged, and more particularly to a line array speaker for maximizing advantages thereof using flat-panel speaker modules embedded therein.
  • a line array speaker includes at least one speaker module provided with a diaphragm that vibrates in a second direction perpendicular to a first direction and extends in the first direction, a housing extending in the first direction while including the plurality of speaker modules, and a conductive unit configured to supply electricity having a substantially identical phase to the plurality of speaker modules.
  • the plurality of speaker modules may be arranged in the housing in the first direction.
  • the plurality of speaker modules may be arranged to extend in the first direction.
  • the plurality of speaker modules may include a first speaker module and a second speaker module, and the first speaker module and the second speaker module are arranged in the housing in a manner that one end of the first speaker module and the other end of the second speaker module are spaced apart from each other by a predetermined distance.
  • the speaker module may include a first magnetic body configured to extend in the first direction, and be polarized in a direction perpendicular to the first direction, a second magnetic body configured to extend in the first direction, be polarized in a direction perpendicular to the first direction, and be spaced apart from the first magnetic body by a predetermined distance in a manner that different poles are arranged to face each other in association with the first magnetic body, a coil plate located between the first magnetic body and the second magnetic body, and configured to have a coil pattern formed in a spiral track shape, and a diaphragm configured to vibrate by connecting to the coil plate.
  • the diaphragm may be coupled to one edge of the coil plate arranged parallel to the first direction.
  • a first electrode and a second electrode electrically connected to the conductive unit may be formed at the other edge of the coil plate arranged parallel to the first direction.
  • the coil plate may include a plurality of coil formation layers each having the coil pattern.
  • the coil plate may include the plurality of coil formation layers stacked therein in a manner that the coil patterns respectively formed in the coil formation layers overlap with each other.
  • the coil plate may include a conductive hole that is formed at an inner side of the spiral track formed by the coil patterns so that the coil patterns formed in the coil formation layers different from each other are electrically interconnected through the conductive hole.
  • the first electrode and the second electrode may be respectively coupled to the coil patterns formed in the different coil formation layers.
  • the inner end of the spiral track of a wire forming the coil patterns may be connected to a conductor inserted into the conductive hole.
  • the outer end of the spiral track of the wire forming the coil patterns may be connected to the first electrode or the second electrode.
  • the conductive unit may include a first conductive cable and a second conductive cable.
  • the speaker module may include a first terminal and a second terminal electrically connected to the coil patterns.
  • the first terminal may be electrically connected to the first conductive cable, and may be formed at one position that is spaced apart in one direction from a center of a width of the speaker module.
  • the second terminal may be electrically connected to the second conductive cable, and may be formed at the other position that is spaced apart in the other direction from the center of the width of the speaker module.
  • the first conductive cable may be located at one side of the speaker module within the housing, and the second conductive cable may be located at the other side of the speaker module within the housing.
  • the first terminal may be formed at one end of the speaker module, and the second terminal may be formed at the other end of the speaker module.
  • the diaphragm may be coupled to one edge of the coil plate arranged parallel to the first direction.
  • the first electrode and the second electrode electrically connected to the coil patterns may be formed at the other edge of the coil plate arranged parallel to the first direction.
  • the first terminal and the second terminal may be mounted to a frame to which the first magnetic body and the second magnetic body are fixed.
  • the first electrode and the first terminal may be electrically interconnected through a first conductive wire.
  • the second electrode and the second terminal electrode may be electrically interconnected through a second conductive wire.
  • the first conductive wire or the second conductive wire may include a plurality of fiber strings, and the plurality of fiber strings is formed of a fiber material and is wrapped with a conductive material.
  • the first conductive wire or the second conductive may be formed by twisting of the plurality of fabric strings.
  • the first terminals of the plurality of speaker modules may be connected to the first conductive cable.
  • the second terminals of the plurality of speaker modules may be connected to the second conductive cable.
  • the plurality of speaker modules may include a first speaker module and a second speaker module located adjacent to the first speaker module.
  • the length of the first conductive unit ranging from one point where the first conductive cable is connected to the first terminal of the first speaker module to the other point where the first conductive cable is connected to the first terminal of the second speaker module may be longer than a distance from the first terminal of the first speaker module to the first terminal of the second speaker module.
  • the speaker module may include a frame to which the first magnetic body, the second magnetic body, and the diaphragm are fixed.
  • a sound hole may be formed at one surface of the housing in a manner that the sound hole is arranged to face a surface of the diaphragm.
  • the frame may be coupled to an inner surface of the housing so that the diaphragm is arranged to face the sound hole, and a vibration-absorbing pad may be inserted into a coupling surface between the housing and the frame.
  • the housing may be provided with a vent hole for air ventilation.
  • a vent cover covering the vent hole may be coupled to an inner surface of the housing.
  • the vent cover may include a ventilation passage through which indoor air of the housing communicates with outdoor air of the housing.
  • the inlet of the ventilation passage may be connected to the vent hole, and the outlet of the ventilation passage may be connected to an inner space of the housing.
  • the inlet of the vent hole may be arranged not to face the outlet of the ventilation passage.
  • orientation or positional relationship indicated by the terms “center”, “up”, “down”, “left”, “right”, “vertical”, “horizontal”, “inside”, “outside”, “one surface”, “other surface”, and the like is based on the orientation or positional relationship shown in the drawings or based on the orientation or positional relationship placed when the product of the present disclosure is used.
  • the above-mentioned orientation or positional relationships and the above terms are disclosed only for illustrative purposes, and it should be understood that the device or element of the present disclosure is not necessarily constructed or manipulated with specified orientation, and thus is not to be construed as limiting the present disclosure.
  • FIG. 1 is a perspective view illustrating a line array speaker.
  • FIG. 2 is a cross-sectional view illustrating a speaker module 100 taken along the line A-A shown in FIG. 1 .
  • FIG. 3A is a plan view illustrating one surface of a coil plate 140.
  • FIG. 3B is a plan view illustrating the other surface of the coil plate 140 according to an embodiment of the present disclosure.
  • FIG. 4 is a plan view illustrating a coil plate 140 according to another embodiment of the present disclosure.
  • FIG. 5 is a conceptual diagram illustrating the connection relationship between a conductive unit 300 and a speaker module 100.
  • FIG. 6 is a perspective view illustrating a housing 200.
  • FIG. 7 is a cross-sectional view illustrating the housing taken along the line B-B shown in FIG. 6 .
  • the line array speaker may include one or more speaker modules 100, a housing 200, and a conductive unit 300.
  • Each of the speaker modules 100 may include a diaphragm 130 which vibrates in a second direction perpendicular to a first direction and extends in the first direction.
  • the housing 200 may extend in the first direction, and may include the plurality of speaker modules 100.
  • the conductive unit 300 may supply the same phase of electricity to the plurality of speaker modules 100, and the plurality of speaker modules 100 may be disposed in the housing 200 along the first direction.
  • the first direction may be a direction in which the line array speaker extends, and may be identical to an X-axis direction shown in FIGS. 1 to 7 .
  • the second direction may be a direction in which the diaphragm 130 vibrates, may be perpendicular to the first direction, and may be identical to a Z-axis direction shown in FIGS. 1 to 7 .
  • an upper direction may denote a Z-axis direction
  • a lower direction may denote a direction opposite to the Z-axis direction.
  • the line array speaker may include plural speaker modules 100 which extend in the first direction while being spaced apart from each other by a predetermined distance.
  • the plurality of speaker modules 100 extending in the first direction may be arranged at a virtual line extending in the first direction. That is, one speaker module 100 from among the plurality of speaker modules 100 will hereinafter be referred to as a first speaker module 100a, and the other speaker module 100 located adjacent to the first speaker module 100a will hereinafter be referred to as a second speaker module 100b.
  • one end of the first speaker module 100a and the other end of the second speaker module 100b may be arranged in the housing 200 while being spaced apart from each other by a predetermined distance.
  • the line array speaker may use the speaker modules configured to emit the sound source itself to line-shaped wavefronts, as a speaker driver, such that the entire device can be minimized in structure and size and sound can be effectively propagated in a wide space.
  • the line array speaker according to the present disclosure may be used for various purposes in various places such as an indoor space of a vehicle, a plaza, an exhibition hall, a lecture room, a concert hall, a lobby, etc.
  • a separation distance between the speaker modules 100 may be calculated in consideration of a mainly-used sound field (frequency), effects on constructive and destructive interference between the speaker modules 100 associated with a variable such as a distance between a sound source and a listener, and other effects on other contiguous speaker modules 100 affected by vibrations of the speaker modules 100.
  • the line array speaker according to the present disclosure has a simple structure, such that the separation distance between the speaker modules 100 contained in the housing 200 can be easily adjusted. Accordingly, the line array speaker may adjust the separation distance between the speaker modules 100 according to use environment and conditions, so that the line array speaker can provide users with optimal sound.
  • each of the speaker modules 100 of the line array speaker may include a first magnetic body 110, a second magnetic body 120, a coil plate 140, and a diaphragm 130.
  • the first magnetic body 110 may extend in the first direction, and may be polarized in a direction perpendicular to the first direction.
  • the second magnetic body 120 and the first magnetic body 110 may be spaced apart from each other so that different poles can be arranged to face each other in association with the first magnetic body 110.
  • the coil plate 140 may be located between the first magnetic body 110 and the second magnetic body 120, and may be provided with a coil pattern 141 formed in a spiral track shape.
  • the diaphragm 130 may be configured to vibrate while being coupled to the coil plate 140.
  • Each of the speaker modules 100 may include a frame 140 to which the first magnetic body 110, the second magnetic body 120, and the diaphragm 130 are fixed.
  • Each of the first magnetic body 110 and the second magnetic body 120 may include a magnet for forming a magnetic field alone and at least one yoke for inducing a direction of the magnetic field emitted from the magnet.
  • the first magnetic field 110 and the second magnetic body 120 may be spaced apart from each other in a manner that different poles are arranged to face each other, and may then be fixed to the frame 150.
  • each of the first magnetic body 110 and the second magnetic body 120 may connect the magnet to the yoke so that different poles can be arranged to face each other through the yoke.
  • the first magnetic body 110 may include a magnet 113 and a plurality of yokes 111.
  • the magnet 113 may be arranged in a manner that the North pole (N pole) and the South pole (S pole) of the first magnetic body 110 can be polarized in an up-and-down direction (i.e., in the second direction), and the yokes 111 may be respectively coupled to an upper end and a lower end of the magnet 113.
  • the magnet 113 of the first magnetic body 110 and the yokes 111 of the first magnetic body 110 may be formed in a linear shape extending in the first direction.
  • the yoke 111 of the first magnetic body 110 in one direction (i.e., a Y-axis direction) perpendicular to the first direction or the second direction may be larger in width than the magnet 113 arranged in the Y-axis direction.
  • the yokes 111 of the first magnetic body 110 may be coupled to the magnet 113 in a manner that the yokes 111 can protrude farther than the magnet 113 in the direction facing the yokes 121 of the second magnetic body 120. Accordingly, the magnetic field of the magnet 113 of the first magnetic body 110 may be induced in the Y-axis direction perpendicular to the first direction or the second direction by the yokes 111 of the first magnetic body 110.
  • the second magnetic body 120 may include a magnet 123 and a plurality of yokes 121.
  • the magnet 123 may be arranged in a manner that the North pole (N pole) and the South pole (S pole) of the second magnetic body 120 can be polarized in a direction opposite to the direction of the magnet 113 of the first magnetic body 110, and the yokes 121 may be respectively coupled to an upper end and a lower end of the magnet 123.
  • the magnet 123 of the second magnetic body 120 and the yokes 121 of the second magnetic body 120 may be formed in a linear shape extending in the first direction.
  • Each yoke 121 of the second magnetic body 120 in the Y-axis direction may also be larger in width than the magnet 123 arranged in the Y-axis direction.
  • the yokes 121 of the second magnetic body 120 may be coupled to the magnet 123 of the second magnetic body 120 in a manner that the yokes 121of the second magnetic body 120 can protrude farther than the magnet 123 arranged in the direction facing the yokes 111 of the first magnetic body 110. Accordingly, the magnetic field of the magnet 123 of the second magnetic body 120 may be induced in the direction facing the yokes 111 of the first magnetic body 110 by the yokes 121 of the second magnetic body 120.
  • each of the speaker modules 100 may include the coil plate 140 provided with the coil pattern 141 in which a straight region 143 is divided into two straight regions.
  • One straight region 143a from among the two straight regions of the coil pattern 141 may be inserted into the spacing between the yokes 111 and 121 of upper ends of the first and second magnetic bodies 110 and 120, resulting in formation of a magnetic circuit.
  • the other straight region 143b from among the two straight regions of the coil pattern 141 may be inserted into the spacing between the yokes 111 and 121 of lower ends of the first and second magnetic bodies 110 and 120, resulting in formation of a magnetic circuit.
  • the magnetic circuits interacting with the coil pattern 141 of the coil plate 140 may be respectively constructed at the upper end and the lower end of the first and second magnetic bodies 110 and 120, so that two magnetic circuits can be formed in a single speaker module 100.
  • the line array speaker according to the present disclosure may construct two magnetic circuits in each of the speaker modules 100, such that the coil plate 140 driving the diaphragm 130 may easily maintain the balance when the coil plate 140 driving the diaphragm 130 moves in the second direction.
  • Grooves may be respectively formed at edges where the yokes 111 of the first magnetic body 110 extending in the first direction are arranged to face the yokes 121 of the second magnetic body 120, and a first or second electrode 147a or 147b electrically coupled to the coil pattern 141 of the coil plate 140 may be located between the grooves.
  • the above-mentioned grooves may be formed at the yokes coupled to the lower ends of the magnets. More specifically, the above-mentioned grooves may be respectively formed at both ends of the yokes in the first direction.
  • the coil plate 140 and the diaphragm 130 may be arranged in the speaker modules 100 in a manner that the surface of the coil plate 140 is arranged parallel to each of the first direction and the second direction and the surface of the diaphragm 130 is arranged parallel to the first direction while being perpendicular to the second direction.
  • the diaphragm 130 may be coupled to one edge that is arranged parallel to the first direction of the coil plate 140.
  • the coil plate 140 may be inserted between the first magnetic body 110 and the second magnetic body 120 in a manner that one edge and the other edge can protrude from the spacing between the first magnetic body 110 and the second magnetic body 120.
  • One edge of the coil plate 140 may protrude upward so that the one edge may be coupled to the diaphragm 130.
  • the other edge of the coil plate 140 may protrude downward so that the other edge may be coupled to the first electrode 147a and the second electrode 147b.
  • One edge of the coil plate 140 may be coupled to the center of the Y-axis directional width of the diaphragm 130.
  • the diaphragm 130 may be made of a honeycomb plate formed of a honeycomb material, and may have a light weight and a high bending stress.
  • the diaphragm 130 formed of a honeycomb material may be beneficial in terms of sound linearity.
  • a flexible fixing means 131 formed of a thermoplastic polyurethane (TPU) material may be connected to the edge of the diaphragm 130, so that the diaphragm 130 can be fixed to the frame 150.
  • the flexible fixing means 131 may be provided with a main convex portion 131a.
  • the main convex portion 131a may be formed along the edge of the diaphragm 130 in the second direction of the flexible fixing means 131.
  • the main convex portion 131a may be provided with a plurality of auxiliary convex portions.
  • the main convex portion 131a and the auxiliary convex portions may weaken stress of the flexible fixing means 131, so that the diaphragm 130 can smoothly perform repeated rectilinear movement in the second direction.
  • the coil pattern 141 may be printed on the coil plate 140 so that the coil pattern1 141 can be formed at the coil plate 140.
  • the coil plate 140 may be provided with the coil pattern 141.
  • the coil pattern 141 may receive a current as an input, and may thus construct the first magnetic body 110, the second magnetic body 120, and magnetic circuits.
  • the coil pattern 141 may include a straight region 143 in which the wire forming the coil pattern 141 extends in the first direction and a curved region 144 in which the wire is curved at the end of the straight region 143.
  • the coil pattern 141 may be formed in a spiral track shape at the coil plate 140, and may be formed in a coil shape that is wound on the coil plate 140 using the Y-axis direction as a rotation axis.
  • the straight region 143 in which the wire of the coil pattern 141 linearly extending in the first direction is printed may be divided into two straight regions with respect to the second-directional width of the coil plate 140.
  • one straight region from among the two straight regions will hereinafter be referred to as a first straight region 143a and the other straight region from among the two straight regions will hereinafter be referred to as a second straight region 143b for convenience of description and better understanding of the present disclosure.
  • a stress concentration portion 146 may be formed between the first straight region 143a and the second straight region 143b.
  • the coil plate 140 may be provided with the stress concentration portion 146 extending parallel to the extension direction of the straight region 143.
  • the stress concentration portion 146 may be formed in a hole or groove shape.
  • the stress concentration portion 146 may be formed in a single long groove or a single long hole as shown in FIGS. 3A and 3B .
  • the stress concentration portion 146 may be formed in a plurality of grooves or a plurality of holes as shown in FIG. 4 .
  • the line array speaker according to the present disclosure may form the stress concentration portion 146 corresponding to a weak line at the center of the coil plate 140 in the first direction. As a result, the coil plate 140 can be prevented from being curved in the first direction even when unexpected impact is applied to the entire speaker device,
  • the coil plate 140 may include a plurality of coil formation layers 142 each having the coil pattern 141.
  • the plurality of coil formation layers 142 may be stacked in the coil plate 140 in a manner that the coil patterns 141 respectively formed in the coil formation layers 142 overlap with each other.
  • the coil plate 140 may include a conductive hole 145 that is formed at the inside of the spiral track and electrically interconnects the respective coil patterns 141 formed in different coil formation layers 142. If the end of the wire of one coil pattern 141 connected to the conductive hole 145 is formed to extend from the wire of the first straight region 143a, the end of the wire connected to the conductive hole 145 in the other coil pattern 141 may be formed to extend from the wire of the second straight region 143b.
  • the coil patterns 141 of the respective layers are connected to the conductive hole 145, such that the total amount of electron movement in the straight region 143 may be amplified by stacking of the coil patterns 141 of the respective layers.
  • the first electrode 147a and the second electrode 147b electrically connected to the conductive unit 300 may be formed at other edges of the coil plate 140 arranged parallel to the first direction.
  • the first electrode 147a and the second electrode 147b may be coupled to the coil patterns 141 formed in different coil formation layers 142. Since the coil is spirally wound on the coil plate 140, one end of the coil wire may be located at the outside of the spiral track and the other end of the coil wire may be located at the inside of the spiral track.
  • the line array speaker may include the coil plate 140 provided with multilayered coil patterns 141, so that the inner wire of the spiral track can be prevented from extending across the wires of the coil patterns 141 when an external power source is connected to one or more electrodes of the coil plate.
  • the inner end of the spiral track of the wires forming the coil patterns 141 may be connected to a conductor inserted into the conductive hole 145, and the outer end of the spiral track of the wires forming the coil patterns 141 may be connected to the first electrode 147a or the second electrode 147b.
  • the first electrode 147a and the second electrode 147b may be spaced apart from each other in the first direction, so that the first electrode 147a and the second electrode 147b can be prevented from being short-circuited.
  • the conductive unit 300 may include a first conductive cable 310 and a second conductive cable 320.
  • the first conductive cable 310 may be located at one side of the speaker module 100 within the housing 200
  • the second conductive cable 320 may be located at the other side of the speaker module 100 within the housing 200.
  • the first conductive cable 310 and the second conductive 320 may be located in the housing 200 while being packaged with a cushion member 330.
  • the first conductive cable 310 and the second conductive cable 320 may be respectively located at both sides of the speaker module 100 in the Y-axis direction, such that vibrations of the speaker module 100 can be prevented from being transferred to the bottom surface of the housing 200 through the first conductive cable 310 or the second conductive cable 320.
  • the speaker module 100 may include first and second terminals 151a and 151b electrically connected to the coil patterns 141.
  • the first terminal 151a may be electrically connected to the first conductive cable 310, and may be formed at one position that is spaced apart in one direction from the center of the Y-axis directional width of the speaker module 100.
  • the second terminal 151b may be electrically connected to the second conductive cable 320, and may be formed at the other position that is spaced apart in the other direction from the center of the width of the speaker module 100. More specifically, the first terminal 151a may be formed at one end of the speaker module 100, and the second terminal 151b may be formed at the other end of the speaker module 100.
  • the line array speaker may respectively arrange the first conductive cable 310 and the second conductive cable 320 at both sides of the speaker module 100 in a manner that the first conductive cable 310 is located at one side of the speaker module 100 and the second conductive cable 320 is located at the other side of the speaker module 100, and may then maximize a separation distance between the first terminal 151a connected to the first conductive cable 310 and the second terminal 151b connected to the second conductive cable 320, resulting in prevention of short-circuiting.
  • the first terminal 151a and the second terminal 151b may be mounted to the frame 150.
  • the first terminal 151a and the second terminal 151b may be located at a lower part of the speaker module 100, such that the first and second terminals 151a and 151b can be prevented from interfering with movement of the diaphragm 130.
  • the first electrode 147a and the first terminal 151a may be electrically connected to the first conductive wire 153a.
  • the second electrode 147b and the second terminal 151b may be electrically connected to the second conductive wire.
  • the first conductive wire 153a or the second conductive wire may include a plurality of fiber strings (formed of a fiber material) wrapped with a conductive material.
  • the fiber strings may be formed of a meta-aramid fiber material, for example, a Conex fiber material.
  • One end of each of the first conductive wire 153a and the second conductive wire may be connected to the coil plate 140 persistently moving, and the other end of each of the first and second conductive wires 153a may be connected to the first terminal 151a and the second terminal 151b fixed to the frame 150 corresponding to a fixed object. Therefore, the first conductive wire 153a and the second conductive wire may be persistently deformed in shape.
  • each of the first conductive wire 153a and the second conductive wire may be used as the electric wire that has superior abrasion strength, superior bending strength, superior robustness, low flexural rigidity, and low torsional rigidity.
  • the conductive material formed to surround the fiber strings may not react to magnetic fields generated from the first magnetic body 110 and the second magnetic body 120.
  • a representative example of the conductive material may be copper (Cu).
  • Abrasion strength may denote the ability of the electric wire to withstand repeated friction with a constant load on the electric wire.
  • Abrasion strength may be designated by the number of frictions of the electric wire to be cut (or severed) by repeated frictional force.
  • the bending strength may denote how many times the above force is applied to the electric wire until the folded part of the electric wire is severed or cut.
  • the above-mentioned bending strength may also be referred to as a fatigue lifetime, and measurement of such bending strength may be achieved by repeatedly supplying the electric wire with force by which the linear electric wire is folded at a right angle.
  • Robustness may be a term indicating mechanical durability of the electric wire, and may denote energy consumed until the electric wire is cut. If elongation of the certain electric wire is large so that the electric wire is easily elongated in length, the electric wire may be considered high in strength.
  • Flexural rigidity may denote force needed to bend the electric wire.
  • Torsional rigidity may denote force needed to bend the electric wire at a right angle. That is, torsional rigidity may refer to force needed to twist the electric wire.
  • the first conductive wire 153a or the second conductive wire may be formed by twisting of the plurality of fiber strings. Since the first conductive wire 153a or the second conductive wire is formed by twisting of the plurality of fiber strings, electrical connection can be maintained even when some parts of the fiber strings constructing the first conductive wire 153a or the second conductive wire are short-circuited.
  • the first terminals 151a of the plurality of speaker modules 100 may be connected to the first conductive cable 310, and the second terminals 151b of the plurality of speaker modules 100 may be connected to the second conductive cable 320. That is, the speaker modules 100 may be electrically connected in parallel to the conductive unit 300. Connection between the first conductive cable 310 and the first terminal 151a may be achieved through soldering or in a lug type. The plurality of speaker modules 100 may be electrically connected in parallel to each other, such that the speaker modules 100 may emit sound waves having the same phase upon receiving electrical signals having the same phase.
  • a length of the first conductive unit 300 ranging from one point where the first conductive cable 310 is connected to the first terminal 151a of the first speaker module 100a to the other point where the first conductive cable 310 is connected to the first terminal 151a of the second speaker module 100b is longer than a distance from the first terminal 151a of the first speaker module 100a to the first terminal 151a of the second speaker module 100b.
  • first conductive cable 310 or the second conductive cable 320 has a sufficiently long length, tension occurs in the first conductive cable 310 or the second conductive cable 320, so that vibrations of the speaker modules 100 can be prevented from interfering with each other, and occurrence of user inconvenience that the user who desires to adjust the distance between the speaker modules 100 has to reconnect the wires to the speaker modules 100 can also be prevented.
  • a sound hole (or acoustic hole) 210 located to face the surface of the diaphragm 130 may be formed at one surface of the housing 200, the frame 150 may be coupled to the inner surface of the housing 200 in a manner that the diaphragm 130 can be arranged to face the sound hole 210, and a vibration-absorbing pad may be inserted into a coupling surface between the housing 200 and the frame 150.
  • the line array speaker may arrange a vibration absorption material such as a vibration-absorbing pad or a cushion member 330 at the principal coupling positions of constituent components, such that vibrations of the speaker modules 100 can be prevented from interfering with each other. Such vibrations may be propagated at different speeds according to a medium, a distance, etc.
  • Various kinds of constituent components having different rigidities may be coupled to the plurality of speaker modules 100, and the plurality of speaker modules 100 may be located at different positions, such that interference of vibrations generated from several speakers may affect sound quality. Therefore, it can be very important to prevent such vibration interference in advance.
  • the speaker modules 100 may be fixedly installed in the housing 200 in a manner that an inlet of the sound hole 210 formed at the outer surface of the housing 200 may be spaced apart from the surface of the diaphragm 130 by a predetermined distance.
  • the predetermined distance may be set to 1mm to 4mm.
  • the sound hole 210 having a predetermined depth has the same effect as a horn, such that sound can be slightly amplified through the sound hole 210.
  • the housing 200 may be provided with a vent hole 200 for air ventilation. If indoor air of the housing 200 vibrates, such vibration may affect low-frequency sound.
  • the line array speaker according to the present disclosure may include the vent hole 200 through which indoor air of the housing 200 communicates with outdoor air of the housing 200, such that the line array speaker can reinforce the low-frequency sound by controlling the air that affects rear-surface sound of the speakers.
  • a vent cover 230 covering the vent hole 220 may be coupled to the inner surface of the housing 200.
  • the vent cover 230 may include a ventilation passage 233 through which indoor air of the housing 200 can communicate with outdoor air of the housing 200.
  • An inlet of the ventilation passage 233 may be connected to the vent hole 220, an outlet 231 of the ventilation passage 233 may be connected to the inner space of the housing 200, and the inlet of the vent hole 220 may not face the outlet 231 of the ventilation passage 233. That is, the direction of air flowing into the vent hole 220 may be changed by the vent cover 230, such that the direction of air flowing into or out of the housing 200 can be controlled by the vent cover 230.
  • the line array speaker may use speaker modules configured to emit a sound source to line-shaped wavefronts, such that the entire speaker device can be minimized in size and structure and can enable the sound to be effectively propagated in a wide space.
  • the line array speaker since the line array speaker according to the embodiments of the present disclosure has a simple structure, the line array speaker can easily adjust a separation distance between speaker modules embedded in the housing. Accordingly, the line array speaker can provide users with optimal sound by adjusting a separation distance between speaker modules according to use environment and conditions.
  • the line array speaker includes two magnetic circuits in a single speaker module, such that the line array speaker can easily keep the balance when a coil plate configured to drive a diaphragm moves in a second direction.
  • the line array speaker according to the embodiments of the present disclosure may form a stress concentration part corresponding to a weak line at the center of the coil plate in a first direction, such that the coil plate can be prevented from being curved in the first direction even when unexpected impact is applied to the entire speaker device.
  • the line array speaker may construct a coil plate provided with multilayered coil patterns, so that the inner wire of a spiral track can be prevented from extending across the wires of the coil patterns when an external power source is connected to one or more electrodes of the coil plate.
  • the line array speaker according to the embodiments of the present disclosure may respectively arrange a first conductive cable and a second conductive cable at both sides of the speaker module in a manner that the first conductive cable is located at one side of the speaker module and the second conductive cable is located at the other side of the speaker module, and may then maximize a separation distance between a first terminal connected to the first conductive cable and a second terminal connected to the second conductive cable, resulting in prevention of short-circuiting.
  • the line array speaker may arrange a vibration-absorbing material such as a vibration-absorbing pad or a cushion member at the main coupling position of constituent components, such that vibrations generated from the speaker modules can be prevented from interfering with each other.
  • a vibration-absorbing material such as a vibration-absorbing pad or a cushion member
  • the line array speaker may form a vent hole through which the inside of the housing communicates with the outside of the housing, such that the line array speaker can reinforce a low-band sound by controlling the air that affects a rear-surface sound of the speaker.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
EP19188329.7A 2019-06-26 2019-07-25 Line-array-lautsprecher Active EP3758390B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020190076187A KR102079372B1 (ko) 2019-06-26 2019-06-26 라인 어레이 스피커

Publications (2)

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EP3758390A1 true EP3758390A1 (de) 2020-12-30
EP3758390B1 EP3758390B1 (de) 2022-05-11

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EP (1) EP3758390B1 (de)
KR (1) KR102079372B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3129762A1 (fr) * 2021-11-30 2023-06-02 Jean-Pierre Navarron Dispositif modulaire de reproduction du son et haut-parleur associé

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102474550B1 (ko) * 2021-06-17 2022-12-06 대홍테크뉴(주) 선형 스피커

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200387458Y1 (ko) 2005-02-28 2005-06-17 위즈소닉 주식회사 라인어레이 스피커 혼
US20070263894A1 (en) * 2004-07-20 2007-11-15 Step Technologies Inc. Bessel line source array
US7903834B1 (en) * 2005-06-03 2011-03-08 Graber Curtis E Curve fitted electrodynamic planar loudspeaker
KR20150112644A (ko) * 2014-03-28 2015-10-07 디에스글로벌 (주) 평판형 스피커
US20170188134A1 (en) * 2015-12-28 2017-06-29 Bose Corporation Reducing Ported Transducer Array Enclosure Noise
US20180295451A1 (en) * 2015-04-28 2018-10-11 Icubes Co., Ltd Multi-layer voice coil plate and flat type speaker comprising the same

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4770315B2 (ja) * 2005-07-28 2011-09-14 ヤマハ株式会社 スピーカアレイ
KR100813302B1 (ko) * 2006-08-08 2008-03-13 엘지전자 주식회사 컴퓨터용 스피커
JP6244540B2 (ja) * 2013-05-09 2017-12-13 パナソニックＩｐマネジメント株式会社 スピーカシステムと、これを用いた移動体装置
KR101798921B1 (ko) * 2016-08-08 2017-11-17 민동훈 다층 구조의 보이스 코일판 및 이를 포함하는 평판형 스피커

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070263894A1 (en) * 2004-07-20 2007-11-15 Step Technologies Inc. Bessel line source array
KR200387458Y1 (ko) 2005-02-28 2005-06-17 위즈소닉 주식회사 라인어레이 스피커 혼
US7903834B1 (en) * 2005-06-03 2011-03-08 Graber Curtis E Curve fitted electrodynamic planar loudspeaker
KR20150112644A (ko) * 2014-03-28 2015-10-07 디에스글로벌 (주) 평판형 스피커
US20180295451A1 (en) * 2015-04-28 2018-10-11 Icubes Co., Ltd Multi-layer voice coil plate and flat type speaker comprising the same
US20170188134A1 (en) * 2015-12-28 2017-06-29 Bose Corporation Reducing Ported Transducer Array Enclosure Noise

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3129762A1 (fr) * 2021-11-30 2023-06-02 Jean-Pierre Navarron Dispositif modulaire de reproduction du son et haut-parleur associé

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