WO2022000654A1 - Dispositif de production de son - Google Patents

Dispositif de production de son Download PDF

Info

Publication number
WO2022000654A1
WO2022000654A1 PCT/CN2020/104686 CN2020104686W WO2022000654A1 WO 2022000654 A1 WO2022000654 A1 WO 2022000654A1 CN 2020104686 W CN2020104686 W CN 2020104686W WO 2022000654 A1 WO2022000654 A1 WO 2022000654A1
Authority
WO
WIPO (PCT)
Prior art keywords
sound
edge
magnetic steel
arc
basin frame
Prior art date
Application number
PCT/CN2020/104686
Other languages
English (en)
Chinese (zh)
Inventor
梁平
赵彬
Original Assignee
瑞声声学科技(深圳)有限公司
瑞声科技(新加坡)有限公司
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 瑞声声学科技(深圳)有限公司, 瑞声科技(新加坡)有限公司 filed Critical 瑞声声学科技(深圳)有限公司
Publication of WO2022000654A1 publication Critical patent/WO2022000654A1/fr

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
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/12—Non-planar diaphragms or cones
    • 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

Definitions

  • the present invention relates to the field of acoustics and electricity, in particular to a sound-generating device.
  • the sound-generating device of the related art includes a basin frame, a vibration system and a magnetic circuit system with a magnetic gap respectively fixed on the basin frame; the vibration system includes a diaphragm fixed on the basin frame, inserted in the The magnetic gap is used to drive the diaphragm to vibrate and produce a voice coil.
  • the diaphragm includes a fold ring connected with the basin frame and a dome connected with the fold ring.
  • the fold ring is in the shape of a ring, which includes an inner ring. side and outer side, the inner side and the outer side are both straight sides.
  • the arc length of the diaphragm is insufficient, the amplitude is low, and the performance is poor.
  • An object of the present invention is to provide a sound-generating device capable of increasing the amplitude of the diaphragm.
  • the present invention provides a sound-generating device, which includes a basin frame, a vibration system and a magnetic circuit system with a magnetic gap respectively fixed to the basin frame; the vibration system includes a vibration system fixed to the basin frame.
  • An extended fixed part and a vibration part the fixed part is connected with the basin frame, the dome is connected with the vibration part, and the upper sound membrane also includes an inner part connecting the ring and the vibration part.
  • the inner edge includes at least one arc-shaped convex edge protruding toward the spherical top
  • the spherical top includes at least one arc-shaped convex edge corresponding to the arc-shaped recess.
  • the outer edge includes at least one first straight edge corresponding to the arc-shaped convex edge, and the vertical distance between the arc-shaped convex edge and the first straight edge is from the middle of the arc-shaped convex edge to the two sides. side is gradually reduced.
  • the outer edge further includes a second straight edge, and the two oppositely disposed first straight edges and the two oppositely disposed second straight edges are joined to form a square ring;
  • the inner edge further includes a third straight edge.
  • the two oppositely arranged arc-shaped convex sides and the two oppositely arranged third straight sides are joined to form a ring shape, and the third straight sides are correspondingly arranged with the second straight sides.
  • the outer edge has a rectangular shape, and the first straight edge is longer than the second straight edge, or the first straight edge is shorter than the second straight edge.
  • the sound-generating device further includes an elastic support component fixed on the basin frame and opposite to the diaphragm and arranged at intervals, and the voice coil includes a voice coil body connected with the dome and a voice coil from the voice coil.
  • a connecting line protruding from one end of the ring body away from the spherical top is connected with the elastic support assembly.
  • the elastic support assembly includes an elastic connecting piece connected with the basin frame and an auxiliary membrane connected with an end of the elastic connecting member away from the basin frame, and the elastic connecting member is connected with the connecting line.
  • the elastic connector is a flexible circuit board.
  • the magnetic circuit system includes a magnetic yoke connected to the basin frame, a main magnetic steel, a first auxiliary magnetic steel and a second auxiliary magnetic steel arranged on the magnetic yoke, and covered on the main magnetic steel
  • the main pole core on the steel, the upper splint connected to the basin frame, and the third auxiliary magnetic steel connected to the upper splint, the first auxiliary magnetic steel, the second auxiliary magnetic steel and the main magnetic steel Steels are arranged at intervals to form the magnetic gap, the upper clamping plate is located between the magnetic yoke and the basin frame, and the elastic connecting piece is connected to an end of the upper clamping plate away from the basin frame.
  • the upper clamping plate includes an annular portion fixed to the basin frame, a first secondary pole core and a second secondary pole core arranged on the annular portion, and the first secondary magnetic steel is far away from the yoke
  • One end of the magnetic steel is connected to the first secondary pole core
  • the third secondary magnetic steel is connected to the end of the first secondary pole core away from the first secondary magnetic steel
  • the second secondary magnetic steel is far away from the magnetic steel.
  • One end of the yoke is connected to the second secondary pole core.
  • the dome is provided with an annular recess, and the vibrating portion is installed in the annular recess.
  • the inner edge of the sound-emitting device provided by the present invention includes an arc-shaped convex edge, and the outer edge is kept unchanged, which effectively increases the arc length of the diaphragm, thereby increasing the amplitude of the diaphragm.
  • the structural strength distribution of the sound-emitting device is adjusted to improve the swing; the overall size of the folding ring remains unchanged, and the inner edge is provided with the arc-shaped convex edge protruding toward the dome, so as to facilitate the adjustment of the folding ring
  • the height of the ring avoids reducing the vibration area of the vibrating film of the sound-emitting device, and the resonant frequency and sound pressure level (SPL for short) of the sound-emitting device are not changed much.
  • FIG. 1 is an exploded view of the sound-emitting device of the present invention.
  • FIG. 2 is a schematic three-dimensional structural diagram of the ring of the sound-emitting device shown in FIG. 1 .
  • FIG. 3 is a schematic structural diagram of the sounding device shown in FIG. 1 after being assembled.
  • FIG. 4 is a cross-sectional view of the sound-emitting device shown in FIG. 3 along the direction A-A in FIG. 3 .
  • FIG. 5 is a schematic diagram of the orthographic structure of the diaphragm shown in FIG. 1 .
  • the sound-generating device 100 provided by the present invention includes a basin frame 1 , a vibration system 2 respectively fixed to the basin frame 1 , and a magnetic circuit system 3 having a magnetic gap 30 .
  • the basin frame 1 is used to support the vibration system 2 and the magnetic circuit system 3 .
  • the vibration system 2 includes a diaphragm 21 fixed on the basin frame 1, a voice coil 22 inserted in the magnetic gap 30 to drive the diaphragm 21 to vibrate and produce sound, and a voice coil 22 fixed on the basin frame 1 and connected to the
  • the elastic support components 23 are arranged opposite and spaced apart from the diaphragm 21 .
  • the diaphragm 21 includes an upper sound film 211 and a dome 212, the upper sound film 211 includes a folded ring 2111, a fixed portion 2112 and a vibrating portion 2113 extending from both sides of the folded ring 2111, and connected to the folded ring.
  • the fixing part 2112 is connected with the basin frame 1
  • the dome 212 is connected with the fixing part 2112.
  • the part 2112 is connected, and the voice coil 22 is connected with the dome 212 .
  • the folding ring 211 is substantially a square ring shape
  • the inner edge 2114 and the outer edge 2115 are also substantially square ring shape.
  • the outer edge 2115 includes two oppositely arranged first straight edges 2118 and two oppositely arranged second straight edges 2119 , any of the first straight edges 2118 is connected to the adjacent second straight edges 2119 .
  • the inner edge 2114 includes two oppositely arranged arc-shaped convex edges 2116 and two oppositely arranged third straight edges 2117 , any of the arc-shaped convex edges 2116 is connected to its adjacent third straight edge 2117 .
  • the arc-shaped convex edge 2116 and the first straight edge 2118 are correspondingly arranged and protrude toward the dome 212, the third straight edge 2117 and the second straight edge 2119 are arranged correspondingly and parallel to each other,
  • the vertical distance D between the arc-shaped convex edge 2116 and the first straight edge 2118 gradually decreases toward both sides from the middle of the arc-shaped convex edge 2116 .
  • the distance from the midpoint of the arc-shaped concave edge 2116 to the first straight edge 2118 is D1
  • the distance from the end point of the arc-shaped concave edge 2116 to the first straight edge 2118 is D2
  • the distance D1 is greater than the distance D2.
  • the outer edge 2115 has a rectangular shape
  • the first straight edge 2118 is longer than the second straight edge 2119, that is, the first straight edge 2118 is the long edge of the outer edge 2115
  • the The second straight side 2119 is the short side of the outer side 2115
  • the inner side 2114 is substantially rectangular
  • the arc-shaped convex side 2116 is the long side of the inner side 2114
  • the third straight side 2117 is the short side of the inner side 2114
  • the first straight side 2118 can also be set to be shorter than the second straight side 2119, that is, the first straight side 2118 can be set as the short side of the outer side 2115, which is the same as the second straight side 2119.
  • the arc-shaped convex side 2116 corresponding to the straight side 2118 is also correspondingly set as the short side of the inner side 2114 .
  • the dome 212 includes two oppositely arranged arc-shaped concave portions 2121 and two opposite flat portions 2122 connecting the two arc-shaped concave portions 2121.
  • the two arc-shaped concave portions 2121 and the two arc-shaped convex portions 2121 The sides 2116 are correspondingly arranged, the two flat portions 2122 are corresponding to and parallel to the two third straight sides 2117, the distance from the arc-shaped concave portion 2121 to the arc-shaped convex edge 2116, the distance from the flat portion 2122 to the The distances of the third straight sides 2117 are approximately equal.
  • the inner edge 2114 is provided with the arc-shaped convex edge 2116 , the arc length of the diaphragm 21 is increased, thereby increasing the amplitude of the diaphragm 21 .
  • the overall size of the folding ring 2111 remains unchanged, and the arc-shaped convex edge 2116 is formed by protruding from the inner edge 2114 to the dome 212, so as to facilitate the adjustment of the height of the folding ring 211 and avoid reducing the
  • the vibration area of the diaphragm 21 of the sound-generating device 100 does not greatly change the resonance frequency and the sound pressure level (SPL for short) of the sound-generating device 100 .
  • the voice coil 22 includes a voice coil body 221 connected to the dome 212 and a connecting wire 222 protruding from the end of the voice coil body 221 away from the dome 212
  • the elastic support assembly 23 includes an elastic connecting piece 231 connected with the basin frame 1 and an auxiliary film 232 connected with the end of the elastic connecting member 213 away from the basin frame 1, the elastic connecting member 231 is connected with the Line 222 connects.
  • the elastic connector is a 231 flexible circuit board
  • the sound-emitting device 100 can transmit signals to the voice coil body 221 through the elastic connector 231, and the connecting wire 222 simultaneously serves as a fixed connection and electrical function. The role of sexual connection.
  • the magnetic circuit system 3 includes a magnetic yoke 31 connected to the basin frame 1 , a main magnetic steel 32 arranged on the magnetic yoke 31 , two oppositely arranged first secondary magnetic steels 33 and two oppositely arranged magnetic steels 32 .
  • the second auxiliary magnetic steel 34 the main pole core 36 covered on the main magnetic steel 32 , the upper clamp plate 37 connected to the basin frame 1 , and the two opposite third auxiliary plates connected to the upper clamp plate 37
  • the magnetic steel 35 , the first auxiliary magnetic steel 33 and the second auxiliary magnetic steel 34 are spaced apart from the main magnetic steel 32 to form the magnetic gap 30 .
  • the upper clamping plate 37 is located between the yoke 31 and the basin frame 1 , and the elastic connecting member 231 is connected to an end of the upper clamping plate 37 away from the basin frame 1 .
  • the upper clamping plate 37 includes an annular portion 371 fixed to the basin frame 1 , and a first secondary pole core 372 and a second secondary pole core 373 disposed on the annular portion 371 , and the first secondary magnetic steel 33 is far away from the One end of the yoke 31 is connected to the first secondary pole core 372 , the third secondary magnetic steel 35 is connected to the end of the first secondary pole core 372 away from the first secondary magnetic steel 33 , the One end of the second secondary magnetic steel 34 away from the yoke 31 is connected to the second secondary pole core 373 .
  • the sounding device 100 constitutes a plurality of magnetic steel magnetic circuits by arranging the main magnetic steel 32 , the first auxiliary magnetic steel 33 , the second auxiliary magnetic steel 34 and the third auxiliary magnetic steel 35 , the driving performance of the magnetic circuit system 3 is increased, and the vibration effect of the vibration system 2 is improved.
  • the sound generating device 100 further concentrates the magnetic lines of force of the magnetic circuit system 3 by arranging the main pole core 36 , the first auxiliary pole core 372 and the second auxiliary pole core 373 , so that all The magnetic performance of the magnetic circuit system 3 is better, thereby further improving the acoustic performance of the sound-emitting device 100 .
  • the inner edge of the sound-emitting device provided by the present invention includes an arc-shaped convex edge, and the outer edge is kept unchanged, which effectively increases the arc length of the diaphragm, thereby increasing the amplitude of the diaphragm.
  • the structural strength distribution of the sound-emitting device is adjusted to improve the swing; the overall size of the folding ring remains unchanged, and the inner edge is provided with the arc-shaped convex edge protruding toward the dome, so as to facilitate the adjustment of the folding ring
  • the height of the ring avoids reducing the vibration area of the vibrating film of the sound-emitting device, and the resonant frequency and sound pressure level (SPL for short) of the sound-emitting device are not changed much.

Landscapes

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

Abstract

La présente invention concerne un dispositif de production de son, comprenant un saladier, et un système de vibration et un système de circuit magnétique à entrefer magnétique qui sont respectivement fixés au saladier. Le système de vibration comprend un diaphragme fixé au saladier et une bobine acoustique insérée dans l'entrefer magnétique pour entraîner le diaphragme à vibrer et produire un son ; le diaphragme comprend un diaphragme vocal supérieur et un dôme ; le diaphragme vocal supérieur comprend une bague de pliage, et une partie de fixation et une partie vibrante qui s'étendent depuis les deux côtés de la bague de pliage ; la partie de fixation est reliée au saladier, le dôme est relié à la partie vibrante, et la bobine acoustique est reliée au dôme ; le diaphragme vocal supérieur comprend également un bord interne qui relie la bague de pliage et la partie vibrante et un bord externe qui relie la bague de pliage et la partie de fixation ; le bord intérieur comprend au moins un bord convexe en forme d'arc faisant saillie vers le dôme ; le dôme comprend au moins une partie concave en forme d'arc correspondant au bord convexe en forme d'arc. Selon le dispositif de production de son, la longueur d'arc du diaphragme peut être efficacement augmentée, ce qui permet d'augmenter ainsi l'amplitude de vibration du diaphragme.
PCT/CN2020/104686 2020-06-30 2020-07-25 Dispositif de production de son WO2022000654A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202021261339.4U CN212519417U (zh) 2020-06-30 2020-06-30 发声器件
CN202021261339.4 2020-06-30

Publications (1)

Publication Number Publication Date
WO2022000654A1 true WO2022000654A1 (fr) 2022-01-06

Family

ID=74432745

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/104686 WO2022000654A1 (fr) 2020-06-30 2020-07-25 Dispositif de production de son

Country Status (2)

Country Link
CN (1) CN212519417U (fr)
WO (1) WO2022000654A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110311087A1 (en) * 2007-03-09 2011-12-22 O'neill Robert M Compression driver and horn structure
CN205356664U (zh) * 2016-02-19 2016-06-29 东莞市台德实业有限公司 一种振膜片
CN206674192U (zh) * 2017-04-13 2017-11-24 瑞声科技(新加坡)有限公司 微型扬声器
CN207083221U (zh) * 2017-07-17 2018-03-09 瑞声精密电子沭阳有限公司 发声器
CN208638582U (zh) * 2018-08-13 2019-03-22 瑞声科技(新加坡)有限公司 振膜及发声器件
CN210093522U (zh) * 2019-06-29 2020-02-18 瑞声科技(新加坡)有限公司 发声器件

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110311087A1 (en) * 2007-03-09 2011-12-22 O'neill Robert M Compression driver and horn structure
CN205356664U (zh) * 2016-02-19 2016-06-29 东莞市台德实业有限公司 一种振膜片
CN206674192U (zh) * 2017-04-13 2017-11-24 瑞声科技(新加坡)有限公司 微型扬声器
CN207083221U (zh) * 2017-07-17 2018-03-09 瑞声精密电子沭阳有限公司 发声器
CN208638582U (zh) * 2018-08-13 2019-03-22 瑞声科技(新加坡)有限公司 振膜及发声器件
CN210093522U (zh) * 2019-06-29 2020-02-18 瑞声科技(新加坡)有限公司 发声器件

Also Published As

Publication number Publication date
CN212519417U (zh) 2021-02-09

Similar Documents

Publication Publication Date Title
WO2020119239A1 (fr) Haut-parleur
US10979821B2 (en) Sound generator
CN111641907B (zh) 发声器件
CN209390315U (zh) 发声器件
WO2020024677A1 (fr) Haut-parleur
US20200213763A1 (en) Sound Generator
WO2020134346A1 (fr) Dispositif de génération de son
WO2020134345A1 (fr) Dispositif de production de son
WO2021174569A1 (fr) Haut-parleur
WO2020024661A1 (fr) Haut-parleur
WO2022007024A1 (fr) Haut-parleur
US20200059732A1 (en) Multi-function speaker
WO2022067985A1 (fr) Dispositif de production de son
WO2024045280A1 (fr) Haut-parleur
WO2021223255A1 (fr) Dispositif sonore
WO2022007020A1 (fr) Haut-parleur
WO2020134356A1 (fr) Haut-parleur
WO2024044922A1 (fr) Haut-parleur coaxial
WO2024031827A1 (fr) Haut-parleur
CN213028531U (zh) 发声器件
WO2022000654A1 (fr) Dispositif de production de son
WO2022000655A1 (fr) Dispositif de production de son
WO2022068002A1 (fr) Dispositif de production de son
WO2022007165A1 (fr) Dispositif de génération de son
WO2022088278A1 (fr) Haut-parleur et terminal électronique

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: 20942850

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 20942850

Country of ref document: EP

Kind code of ref document: A1