WO2022110429A1 - 发声装置 - Google Patents

发声装置 Download PDF

Info

Publication number
WO2022110429A1
WO2022110429A1 PCT/CN2020/139032 CN2020139032W WO2022110429A1 WO 2022110429 A1 WO2022110429 A1 WO 2022110429A1 CN 2020139032 W CN2020139032 W CN 2020139032W WO 2022110429 A1 WO2022110429 A1 WO 2022110429A1
Authority
WO
WIPO (PCT)
Prior art keywords
magnetic
magnetic steel
sound
opening
voice coil
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.)
Ceased
Application number
PCT/CN2020/139032
Other languages
English (en)
French (fr)
Inventor
严绪东
邵涛
顾小江
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.)
AAC Technologies Holdings Shenzhen Co Ltd
AAC Microtech Changzhou Co Ltd
Original Assignee
AAC Acoustic Technologies Shenzhen Co Ltd
AAC Microtech Changzhou Co Ltd
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 AAC Acoustic Technologies Shenzhen Co Ltd, AAC Microtech Changzhou Co Ltd filed Critical AAC Acoustic Technologies Shenzhen Co Ltd
Publication of WO2022110429A1 publication Critical patent/WO2022110429A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06—Loudspeakers
    • H04R9/063—Loudspeakers using a plurality of acoustic drivers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; 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; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H04R9/04—Construction, mounting, or centering of coil
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; 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; ELECTRIC HEARING AIDS; 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; ELECTRIC HEARING AIDS; 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
    • H04R2209/022—Aspects regarding the stray flux internal or external to the magnetic circuit, e.g. shielding, shape of magnetic circuit, flux compensation coils
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; 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
    • H04R2209/026—Transducers having separately controllable opposing diaphragms, e.g. for ring-tone and voice

Definitions

  • the present invention relates to the technical field of sound generation, in particular to a sound generation device.
  • the sound-emitting device is generally designed as a double-sided sound-emitting device, that is, a double-sided sound-emitting device.
  • the double-sided sound-emitting device is provided with a magnetic circuit system and two sets of vibration systems.
  • the two sets of vibration systems are driven, so that the two sets of vibration systems emit sound respectively, so as to achieve the purpose of making the sound-emitting device have better sound effects.
  • a sound generating device comprising a bracket, a magnetic circuit system, a first vibration system and a second vibration system fixed to the bracket, the bracket has a first opening and a second opening facing oppositely , the magnetic circuit system is used to drive the first vibration system to emit sound from the second opening toward the first direction of the first opening and drive the second vibration system to the first direction opposite to the first direction.
  • the sound is produced in two directions, the first vibration system includes a first voice coil, the second vibration system includes a second voice coil, and the magnetic circuit system includes first magnetic steels spaced in sequence and oppositely arranged along the second direction , a second magnetic steel and a third magnetic steel, the polarity of the magnetic pole opposite to the second magnetic steel in the first magnetic steel and the polarity of the magnetic pole opposite to the first magnetic steel in the second magnetic steel.
  • the polarity is the same
  • the polarity of the magnetic pole opposite to the third magnetic steel in the second magnetic steel is the same as the polarity of the magnetic pole opposite to the second magnetic steel in the third magnetic steel
  • the polarity of the magnetic pole opposite to the second magnetic steel is the same.
  • a voice coil is sleeved on the outside of the first magnetic steel and the second magnetic steel at the same time
  • the second voice coil is sleeved on the outside of the second magnetic steel and the third magnetic steel at the same time.
  • the magnetic circuit system further includes a first pole core and a second pole core, the first pole core is arranged between the first magnetic steel and the second magnetic steel, and the first pole The core is arranged opposite to the first voice coil in a direction perpendicular to the first direction, the second pole core is arranged between the second magnetic steel and the third magnetic steel, and the second The pole core is disposed opposite to the second voice coil in a direction perpendicular to the second direction.
  • the center point of the first voice coil coincides with the center point of the first pole core
  • the center point of the second voice coil coincides with the center point of the second pole core
  • the size of the first magnetic steel is the same as the size of the third magnetic steel, and the cross-sectional area of the second magnetic steel in a third direction perpendicular to the first direction is the same as that of the first magnetic steel.
  • the cross-sectional areas of the magnets in the third direction are equal, and the height of the second magnet in the first direction is greater than the height of the first magnet in the first direction.
  • the magnetic circuit system further includes a first magnetic frame and a second magnetic frame, the first magnetic frame is provided with a first storage space, the first magnetic steel, a part of the second magnetic steel, The first pole core and the first voice coil are both accommodated in the first storage space, the second magnetic frame is provided with a second storage space, the third magnetic steel, the second magnetic A part of the steel, the second pole core and the second voice coil are all accommodated in the second accommodation space.
  • the first magnetic frame includes a top wall, a plurality of first side walls spaced apart from each other, and a plurality of first limiting portions, and the plurality of first side walls spaced apart from each other are enclosed in the The periphery of the top wall forms the first storage space, each of the first limiting parts is fixed on the top wall and is located between two adjacent first side walls;
  • the second magnetic frame It includes a bottom wall, a plurality of second side walls spaced apart from each other, and a plurality of second limiting portions, and the plurality of second side walls spaced apart from each other are arranged around the periphery of the bottom wall to form the second In the storage space, each of the second limiting portions is fixedly connected to the bottom wall and located between two adjacent second side walls.
  • the bracket includes a body portion and a plurality of bearing portions spaced apart from each other, the body portion is provided with a accommodating space, and each of the bearing portions has a first end portion and a second end portion that are opposite to each other, The first end face facing the first opening and the second end face facing the second opening, the first end portion of each bearing portion is connected with the side of the body portion facing the accommodating space, each A second end of the carrying portion surrounds an installation channel, the second end face is located in the installation channel, a part of the second magnetic frame is disposed in the installation channel, and each of the first The two side walls are connected to the second end surface of each of the carrying parts, and each of the first side walls is connected to the first end surface of each of the carrying parts.
  • the first vibration system further includes a first spherical top
  • the first spherical top includes a first main body portion, two oppositely disposed first connecting portions, and a first main body portion.
  • a holding part the first main body part has a first surface facing the first opening and a second surface facing the second opening, and the two oppositely arranged first connecting parts are arranged on the second surface
  • one of the first connecting parts is arranged between two adjacent bearing parts
  • the first holding part is provided with a first through hole
  • the first holding part is sleeved on the first through hole through the first through hole.
  • the outer side of the first magnetic steel is connected with the side of the first voice coil that is close to the top wall;
  • the second vibration system further includes a side second spherical top,
  • the second spherical top includes a second main body part, two oppositely arranged second connecting parts and a second holding part,
  • the second main body part has a third main body part facing the first opening a surface and a fourth surface facing the second opening, the two oppositely arranged second connecting parts are arranged on the third surface and one of the second connecting parts is arranged between two adjacent bearing parts,
  • One of the second connecting parts is located between the two oppositely arranged first connecting parts,
  • the second holding part is provided with a second through hole, and the second holding part is sleeved through the second through hole
  • the second through hole On the outside of the second magnetic steel and connected with the side of the second voice coil close to the bottom wall.
  • the first vibration system further includes a first sound film and a second sound film located outside the first sound film, the first sound film is provided with a first opening, the first sound film The first sound film is sleeved on the outer side of the first magnetic frame through the first opening, and the first sound membrane has a first connection surface facing the second opening, and the first connection surface is close to the first connection surface.
  • the second vibration system further includes a third sound membrane and a fourth sound membrane located outside the third sound membrane, the third sound membrane is provided with a second sound membrane an opening, the third sound membrane is sleeved on the outside of the second magnetic frame through the second opening, the third sound membrane has a second connection surface facing the first opening, the first A part of the two connecting surfaces close to the second opening is connected to the plurality of second limiting parts, and a part of the second connecting surface facing away from the second opening is connected to the second main body part, The fourth sound membrane is connected between the second body portion and the body portion.
  • the first vibration system further includes a first connecting piece, the first connecting piece is provided with a first connecting hole, and the first connecting piece is fixed to the first magnetic frame through the first connecting hole , and the first connecting piece is connected with the first sound film;
  • the second vibration system further includes a second connecting piece, the second connecting piece is provided with a second connecting hole, and the second connecting piece passes through the The second connecting hole is fixedly connected to the second magnetic frame, and the second connecting piece is connected to the second sound membrane.
  • the magnetic circuit system of the present invention includes a first magnetic steel, a second magnetic steel and a third magnetic steel which are arranged in sequence and opposite to each other, and the first magnetic steel and the second magnetic steel can be the first magnetic steel at the same time.
  • the second magnetic steel and the third magnetic steel can provide the magnetic field for the second voice coil at the same time.
  • the present invention can improve the magnetic circuit efficiency of the magnetic circuit system, so that the The vibration amplitudes of the first voice coil and the second voice coil are increased, thereby increasing the loudness of the sound emitted by the sound generating device.
  • Fig. 1 is the first structure schematic diagram of the sound producing device provided by the present invention
  • Fig. 2 is the second structure schematic diagram of the sounding device provided by the present invention.
  • Fig. 3 is an exploded view of the sounding device shown in Fig. 2;
  • FIG. 4 is a cross-sectional view of the sounding device shown in FIG. 1 along the P-P direction;
  • FIG. 5 is a partial cross-sectional view of the sounding device shown in FIG. 1 along the P-P direction;
  • Fig. 6 is the structural representation of the bracket in the sounding device shown in Fig. 3;
  • Fig. 7 is the connection schematic diagram of the magnetic circuit system, the first voice coil, the second voice coil, the first reinforcing member and the second reinforcing member in the sound generating device shown in Fig. 3;
  • FIG. 8 is a partial exploded view of the sounding device shown in FIG. 2 .
  • the sound generating device 100 includes a bracket 1 , a magnetic circuit system 2 , a first vibration system 3 and a second vibration system 4 .
  • the magnetic circuit system 2 , the first vibration system 3 and the second vibration system 4 are fixed to the bracket 1 , and the magnetic circuit system 2 is used to drive the first vibration system 3 and the second vibration system 4 to emit sound in opposite directions.
  • the bracket 10 has a first opening 11 and a second opening 12 facing oppositely.
  • the magnetic circuit system 2 , the first vibration system 3 and the second vibration system 4 are all fixedly connected to the bracket 10 , and the magnetic circuit system 20 is used to drive the first vibration system 30 to move toward the first opening from the second opening 12 to the first opening 11 .
  • the direction emits sound and drives the second vibration system 4 to emit sound in a second direction opposite to the first direction, so that the sound-emitting device 100 achieves the effect of double-sided sound.
  • the magnetic circuit system 2 includes a first magnetic steel 21 , a second magnetic steel 22 and a third magnetic steel 23 which are spaced apart and oppositely arranged along the second direction.
  • the polarity of the opposite magnetic pole of the second magnetic steel 22 is the same as the polarity of the magnetic pole opposite to the first magnetic steel 21 in the second magnetic steel 22, and the polarity of the magnetic pole opposite to the first magnetic steel 21 in the second magnetic steel 22 is the same as the polarity of the magnetic pole opposite to the first magnetic steel 21.
  • the polarities of the magnetic poles of the third magnetic steel 23 facing the second magnetic steel 22 are the same.
  • the first magnetic steel 21, the second magnetic steel 22 and the third magnetic steel 23 respectively have a south pole and a north pole, wherein the south pole of the first magnetic steel 21 and the south pole of the second magnetic steel 22 are disposed opposite to each other, and the second magnetic steel The north pole of the steel 22 is arranged opposite to the north pole of the third magnetic steel 23; or the north pole of the first magnetic steel 21 is arranged opposite to the north pole of the second magnetic steel 22, and the south pole of the second magnetic steel 22 is opposite to the south pole of the third magnetic steel 23 Set so that the magnetization direction of the first magnetic steel 21 is opposite to the magnetization direction of the second magnetic steel 22 , and the magnetization direction of the second magnetic steel 22 is opposite to the magnetization direction of the third magnetic steel 23 .
  • the first vibration system 3 may include a first voice coil 31 , and the first voice coil 31 is sleeved on the outside of the first magnetic steel 21 and the second magnetic steel 22 at the same time.
  • the first voice coil 31 is an annular structure with a hollow area, and a part of the first magnetic steel 21 and a part of the second magnetic steel 22 are both located in the hollow area, and the first magnetic steel 21 and the second magnetic steel 22 can provide a magnetic field for the first voice coil 31 at the same time, so that the first voice coil 31 is under the simultaneous action of the alternating current passing through the first voice coil 31, the magnetic field of the first magnetic steel 21 and the magnetic field of the second magnetic steel 22. produce vibration.
  • the second vibration system 4 may include a second voice coil 41 , and the second voice coil 41 is sleeved on the outer sides of the second magnetic steel 22 and the third magnetic steel 23 at the same time.
  • the second voice coil 41 is a ring-shaped structure with a hollow area, and a part of the second magnetic steel 22 and a part of the third magnetic steel 23 are both located in the hollow area.
  • the second magnetic steel 22 and the third magnetic steel 23 can provide a magnetic field for the second voice coil 41 at the same time, so that the second voice coil 41 is under the simultaneous action of the alternating current passing through the second voice coil 41, the magnetic field of the second magnetic steel 22 and the magnetic field of the third magnetic steel 23. produce vibration.
  • the sound-generating device in the related art generally uses one magnetic steel to cooperate with the first voice coil 31 , and another magnetic steel to cooperate with the second voice coil 41 .
  • the second magnetic steel 22 of the present invention can provide a magnetic field for the first voice coil 31 and the second voice coil 41 at the same time, which can improve the magnetic circuit efficiency of the magnetic circuit system 2, so that the first voice coil 31 and the second voice coil The vibration amplitude of the second voice coil 41 is increased, thereby increasing the loudness of the sound emitted by the sound generating device 100 .
  • the magnetic circuit system 2 further includes a first pole core 24 and a second pole core 25 , the first pole core 24 is disposed between the first magnetic steel 21 and the second magnetic steel 22 , and the first pole core 24 is disposed between the first magnetic steel 21 and the second magnetic steel 22 .
  • the pole core 24 is disposed opposite to the first voice coil 31 in a direction perpendicular to the first direction. It can be understood that the first pole core 24 is located at the spaced position between the first magnetic steel 21 and the second magnetic steel 22, and a part of the first magnetic steel 21, the first pole core 24 and a part of the second magnetic steel 22 are all located in the first magnetic steel 21. a hollow area of the voice coil 31 .
  • the first pole core 24 can guide the magnetic field generated by the first magnetic steel 21 and the magnetic field generated by the second magnetic steel 22 to a direction perpendicular to the first voice coil 31 .
  • the second pole core 25 is disposed between the second magnetic steel 22 and the third magnetic steel 23, and the second pole core 25 is disposed opposite to the second voice coil 41 in a direction perpendicular to the second direction. It can be understood that the second pole core 25 is located at an interval between the second magnetic steel 22 and the third magnetic steel 23, and a part of the second magnetic steel 22, the second pole core 25 and a part of the third magnetic steel 23 are all located in the first in the hollow area of the second voice coil 41 .
  • the second pole core 25 can guide the magnetic field generated by the second magnetic steel 22 and the magnetic field generated by the third magnetic steel 23 to a direction perpendicular to the second voice coil 41 .
  • the center point of the first voice coil 31 coincides with the center point of the first pole core 24 .
  • the cross-section of the first voice coil 31 along the third direction perpendicular to the first direction is a ring
  • the first pole core 24 is a cylinder
  • the center of the ring of the first voice coil 31 and the cylinder of the first pole core 24 The center of the body coincides, that is, the first pole core 24 is located at the center of the first voice coil 31 .
  • the first magnetic steel 21 , the second magnetic steel 22 and the first pole core 24 can be provided by the first voice coil 31 .
  • the magnetic field has the strongest driving force, thereby further improving the vibration effect of the first voice coil 31 .
  • the center point of the second voice coil 41 coincides with the center point of the second pole core 25 .
  • the structure of the second voice coil 41 is the same as the shape of the first voice coil 31 , both of which are annular.
  • the center of the ring coincides with the center of the cylinder of the second pole core 25, that is, the second pole core 25 is located at the center of the second voice coil 41, at this time, the second magnetic steel 22, the third magnetic steel 23 and the second magnetic steel 22 can be made.
  • the magnetic field driving force provided by the pole core 25 for the second voice coil 41 is maximized, which further improves the vibration effect of the second voice coil 41 .
  • the size of the first magnet steel 21 is the same as that of the third magnet steel 23, wherein the size includes length, width and height.
  • the area of the cross section of the second magnetic steel 22 in the third direction perpendicular to the first direction is equal to the area of the cross section of the first magnetic steel 21 in the third direction, and the second magnetic steel 22 is in the first direction is greater than the height of the first magnetic steel 21 in the first direction.
  • the first magnetic steel 21, the second magnetic steel 22 and the third magnetic steel 23 are all cylindrical structures, and the diameter and height of the first magnetic steel 21 are the same as those of the third magnetic steel 23.
  • the area of the cross section of 21 along the third direction is equal to the area of the cross section of the second magnet 22 along the third direction, that is, the diameter of the first magnet 21, the diameter of the second magnet 22 and the third magnet 23 are all equal .
  • the magnetic circuit system 2 may further include a first magnetic frame 26 , the first magnetic frame 26 is provided with a first storage space 261 , the first magnetic steel 21 , a part of the second magnetic steel 22 , the first pole core 24 and the first voice coil 31 are accommodated in the first storage space 261 .
  • the first magnetic frame 26 may include a top wall 262 , a plurality of first side walls 263 and a plurality of first limiting portions 264 , and the plurality of first side walls 263 are arranged around the periphery of the top wall 262 to form a first storage
  • the space 261, and the plurality of first side walls 263 are spaced apart from each other to form a first gap 265 between two adjacent first side walls 263, and each of the first limiting portions 264 is fixed to the top wall 262 and located at the opposite side. within the first gap 265 formed by the adjacent two first side walls 263 .
  • the first limiting portion 264 may include a first segment 2641, a second segment 2642 and a third segment 2643 that are connected in sequence.
  • the second segment 2642 is bent in the second direction relative to the first segment 2641, and the third segment
  • the second segment 2642 is bent along a third direction perpendicular to the first direction.
  • the first section 2641 is connected to the top wall 262 .
  • the magnetic circuit system 2 may further include a second magnetic frame 27 , and the structure of the second magnetic frame 27 is the same as that of the first magnetic frame 26 .
  • the second magnetic frame may be provided with a second storage space 271 , and the third magnetic steel 23 , a part of the second magnetic steel 22 , the second pole core 25 and the second voice coil 41 are all housed in the second storage space 271 .
  • the second magnetic frame 26 may include a bottom wall 272 , a plurality of second side walls 273 and a plurality of second limiting portions 274 , and the plurality of second side walls 273 are arranged around the periphery of the bottom wall 272 to form a second storage
  • the space 271, and the plurality of second side walls 273 are spaced apart from each other to form a second gap 275 between two adjacent second side walls 273, and each second limiting portion 274 is fixed to the bottom wall 272 and located at the opposite side.
  • the second gap 275 formed by the adjacent two second side walls 273 .
  • the second limiting portion 274 may include a fourth segment 2741 , a fifth segment 2742 and a sixth segment 2743 connected in sequence, the fifth segment 2742 is bent in the second direction relative to the fourth segment 2741 , and the sixth segment 2743 is relative to the fourth segment 2741 .
  • the fifth segment 2742 is bent along a third direction perpendicular to the first direction.
  • the fourth segment 2741 is connected to the bottom wall 272 .
  • the bracket 1 may include a body portion 13 and a plurality of bearing portions 14 spaced apart from each other.
  • the body portion 13 is provided with an accommodating space 15 , and the accommodating space 15 can accommodate the magnetic circuit system 2 , the first vibration System 3 and Second Vibration System 4.
  • the structures of the plurality of bearing portions 14 are the same, and each bearing portion 14 may have a plurality of end faces.
  • the bearing portion 14 may include a first end face 141 and a second end face 142 arranged opposite to each other, and the first end face 141 is arranged towards the first opening 11 .
  • each bearing portion 14 also has a first end portion 143 and a second end portion 144 disposed opposite to each other.
  • the first end portion 143 of each bearing portion 14 is connected to the side of the body portion 13 facing the accommodating space 15 .
  • a second end portion 144 of the portion 14 surrounds an installation channel 16 , and the second end surface 142 is located in the installation channel 16 .
  • each first side wall 263 of the first magnetic frame 26 is connected to the first end surface 141 of each bearing portion 14 .
  • the first magnetic frame 26 may include four first side walls 263, the bracket 1 may include four bearing portions 14, and one first side wall 263 is connected to the first end surface 141 of one bearing portion 14, so that the first magnetic The frame 26 is fixedly connected to the bracket 1 .
  • the second magnetic frame 27 can be disposed in the installation channel 16, and each second side wall 273 of the second magnetic frame 27 is connected to the second end surface 142 of each bearing portion 14, so that the second magnetic frame 27 is connected to the bracket 1 Fixed connection.
  • the first vibration system 3 may further include a first dome 32 , a first sound membrane 33 , a second sound membrane 34 , a first elastic wave component 35 and a first connector 36 .
  • the first connecting member 36 is simultaneously connected to the first magnetic frame 26 and the first sound membrane 33, and the first voice coil 31, the first sound membrane 33, the second sound membrane 34 and the first elastic wave assembly 35 are all connected to the first dome. 32 is connected, so that the first dome 32, the first sound membrane 33 and the second sound membrane 34 can vibrate together with the first voice coil 31 and emit sound in the first direction.
  • the first dome 32 may include a first main body part 321 , two oppositely disposed first connecting parts 322 , and a first holding part 323 connected with the first main body part 321 .
  • the first main body portion 321 has a first surface 3211 facing away from the second opening 12 and a second surface 3212 facing the second opening 12 .
  • a connecting portion 322 is disposed between two adjacent bearing portions 14 or at a spaced position between the two bearing portions 14 .
  • the first holding part 323 is provided with a first through hole 3231 , the first holding part 3231 is sleeved on the outside of the first magnetic steel 21 through the first through hole 3231 and is connected to the surface of the first voice coil 31 close to the top wall 262 .
  • the first sound film 33 is provided with a first opening 331 , the first sound film 33 is sleeved on the outer side of the first magnetic frame 26 through the first opening 331 , and the first sound film 33 is simultaneously connected to the plurality of the first magnetic frame 26 .
  • the first limiting portions 264 are connected to the first main body portion 321 of the first dome 32 .
  • the first sound membrane 33 may include a first connecting surface 332 facing the second opening 12 and a second connecting surface 333 facing away from the second opening 12 , and a portion of the first connecting surface 332 close to the first opening 331 is connected On the third segments 2643 of the plurality of first limiting portions 264 , a portion of the first connecting surface 332 facing away from the first opening 331 is connected to the first main body portion 321 of the first dome 32 .
  • the first connecting member 36 is provided with a first connecting hole 361 , and the first connecting member 36 is fixedly connected to the first magnetic frame 26 through the first connecting hole 361 , and the first connecting member 36 faces the second opening.
  • One side of 12 is connected to the second connection surface 333 of the first sound membrane 33 .
  • the second sound membrane 34 is disposed outside the first sound membrane 33 , and the second sound membrane 34 is connected between the body portion 13 of the bracket 1 and the first main body portion 321 of the first dome 32 .
  • the second sound membrane 34 has a through hole, a surface facing the second opening, and another surface facing away from the second opening, and a part of the surface facing the second opening close to the through hole and the first main body portion 321 facing away from the second opening.
  • One side of a sound membrane 33 is connected, and a part of the surface facing the second opening that faces away from the through hole is connected to the end face of the main body 13 that faces away from the accommodating space 15 in the first direction.
  • the first sound membrane 33 is located in the second sound box. within the through holes of the membrane 34 .
  • the second vibration system 4 may further include a second dome 42 , a third sound membrane 43 , a fourth sound membrane 44 , a second elastic wave assembly 45 and a second connecting member 46 .
  • the first connecting member 36 is simultaneously connected to the first magnetic frame 26 and the first sound membrane 33, and the first voice coil 31, the first sound membrane 33, the second sound membrane 34 and the first elastic wave assembly 35 are all connected to the first dome. 32 is connected, so that the first dome 32, the first sound membrane 33 and the second sound membrane 34 can vibrate together with the first voice coil 31 and emit sound in the first direction.
  • the structure of the second spherical top 42 may be the same as that of the first spherical top 32 .
  • the second dome 42 may also include a second main body portion 421 , two oppositely disposed second connecting portions 422 , and a second holding portion 423 connected to the second main body portion 421 .
  • the second main body portion 421 has a third surface 4211 facing away from the second opening 12 and a fourth surface 4212 facing the second opening 12 .
  • the two connecting portions 422 are disposed between two adjacent bearing portions 14 or at a spaced position between the two bearing portions 14 .
  • the second holding portion 423 is provided with a second through hole 4231 .
  • the second holding portion 423 is sleeved on the outside of the second magnetic steel 22 through the second through hole 4231 and is connected to the side of the second voice coil 41 close to the bottom wall 272 .
  • the structure of the second spherical top 42 may also be different from that of the first spherical top 32 .
  • the structure of the third sound membrane 43 may be the same as that of the first sound membrane 33 .
  • the third sound film 43 is provided with a second opening 431 , the third sound film 43 is sleeved on the outside of the second magnetic frame 27 through the second opening 431 , and the third sound film 43 is simultaneously connected with the second magnetic frame 27 .
  • the plurality of second limiting portions 274 are connected to the second main body portion 421 of the second dome 42 .
  • the third sound membrane 43 may include a third connecting surface 432 facing the first opening 11 and a fourth connecting surface 433 facing away from the first opening 11 , and a portion of the third connecting surface 432 close to the second opening 431 is connected On the sixth segments 2743 of the plurality of second limiting portions 274 , a portion of the third connecting surface 432 facing away from the second opening 431 is connected to the second main body portion 421 of the second dome 42 .
  • the structure of the third sound membrane 43 may also be different from that of the first sound membrane 33 .
  • the structure of the second connecting member 46 may be the same as that of the first connecting member 36 .
  • the second connecting member 46 is provided with a second connecting hole 461 , and the second connecting member 46 is connected to the second connecting member 46 through the second connecting hole 461 through the second connecting hole 461 .
  • the second magnetic frame 27 is fixedly connected, and the surface of the second connecting member 46 facing the first opening 11 is connected to the fourth connecting surface 433 of the third sound membrane 43 .
  • the structure of the second connecting member 46 is the same as that of the first connecting member 36 .
  • the structure of the fourth sound membrane 44 may be the same as that of the second sound membrane 34 .
  • the fourth sound membrane 44 is disposed outside the third sound membrane 43 , and the fourth sound membrane 44 is connected between the body portion 13 of the bracket 1 and the second body portion 421 of the second dome 42 .
  • the fourth sound membrane 44 has a through hole, one surface facing the first opening 11 and another surface facing away from the first opening 11 , and a portion of the surface facing the first opening 11 close to the through hole and the second main body portion 421
  • the side facing away from the third sound membrane 43 is connected, and a part of the surface facing the first opening 11 facing away from the through hole is connected with the other end face of the main body 13 that is arranged away from the accommodating space 15 in the second direction.
  • the membrane 43 is located in the through hole of the fourth sound membrane 44 .
  • the structure of the fourth sound membrane 44 may also be different from that of the second sound membrane 34 .
  • the first elastic wave assembly 35 may include two oppositely arranged first elastic waves, one first elastic wave is disposed between two adjacent bearing parts 14 and is connected with a first connecting part 322 , another first elastic wave is disposed between the other two adjacent bearing parts 14 and is connected with another first connecting part 322 .
  • the second elastic wave assembly 45 may include two oppositely arranged second elastic waves, one second elastic wave is disposed between the two first elastic waves and between two adjacent bearing parts 14 , and one second elastic wave The waves are also connected to a second connection 422 .
  • the bracket 11 may include a first bearing portion, a second bearing portion, a third bearing portion, and a fourth bearing portion arranged at intervals in sequence, and a first elastic wave is arranged at an interval between the first bearing portion and the second bearing portion, Another first spring wave is arranged at a spaced position between the third bearing portion and the fourth bearing portion.
  • One second elastic wave is arranged at an interval between the second bearing portion and the third bearing portion, and the other second elastic wave is arranged at an interval between the first bearing portion and the fourth bearing portion.
  • the first vibration system 3 further includes a first reinforcing member 37 , the first reinforcing member 37 is provided with a third through hole 371 , and the first reinforcing member 37 is inserted through the third through hole 371 It is arranged on the outside of the second magnetic steel 22 and is connected to the side of the first voice coil 31 facing away from the top wall 262 .
  • the first reinforcing member 37 also has a first connecting structure extending from the inside of the first receiving space 261 of the first magnetic frame 26 toward the outside of the first receiving space 261 , and the first connecting structure is connected with the first dome 32 .
  • the first reinforcement member 37 can vibrate together with the first voice coil 31 and the first dome 32.
  • the first reinforcement The component 37 can increase the connection strength between the first dome 32 and the first voice coil 31 , thereby improving the vibration effect of the first voice coil 31 driving the first dome 32 to vibrate together.
  • the second vibration system 4 further includes a second reinforcing member 47.
  • the structure of the second reinforcing member 47 may be the same as that of the second reinforcing member 47.
  • the second reinforcing member 47 is provided with a fourth through hole 471.
  • the strong piece 47 is sleeved on the outer side of the second magnetic steel 22 through the fourth through hole 471 and is connected to the side of the second voice coil 41 facing away from the bottom wall 272 .
  • the second reinforcing member 47 also has a second connecting structure extending from the inside of the second receiving space 271 of the second magnetic frame 27 toward the outside of the second receiving space 271 , and the second connecting structure is connected with the second dome 42 .
  • the second reinforcing member 47 can vibrate together with the second voice coil 41 and the second dome 42 , and the second reinforcing member 47 is only connected to the second voice coil 41 through the second holding portion 423 of the second dome 42 .
  • the component 47 can increase the connection strength between the second dome 42 and the second voice coil 41 , thereby improving the vibration effect of the second voice coil 41 driving the second dome 42 to vibrate together.
  • the structure of the second reinforcing member 47 may also be different from that of the first reinforcing member 37 .

Landscapes

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

Abstract

本发明提供了一种发声装置，包括支架以及固接于支架的磁路系统、第一振动系统和第二振动系统，支架具有朝向相反的第一开口和第二开口，磁路系统用于驱动第一振动系统和第二振动系统朝不同的方向发声，第一振动系统包括第一音圈，第二振动系统包括第二音圈，磁路系统包括沿第二方向依次间隔且相对设置的第一磁钢、第二磁钢以及第三磁钢，第一磁钢中与第二磁钢相对的磁极的极性和第二磁钢中与第一磁钢相对的磁极的极性相同，第二磁钢中与第三磁钢相对的磁极的极性和第三磁钢中与第二磁钢相对的磁极的极性相同，第一音圈同时套设在第一磁钢与第二磁钢的外侧，第二音圈同时套设在第二磁钢与第三磁钢的外侧。本发明可以提升发声装置所发出声音的响度。

Description

发声装置
本发明要求于2020年11月30日提交中国专利局、申请号为202011384279.X、发明名称为“发声装置”的中国专利申请的优先权，其全部内容通过引用结合在本发明中。
技术领域
本发明涉及发声技术领域，特别涉及一种发声装置。
 背景技术
现有技术为了达到较好的音效，一般会将发声装置设计成双面发声，即双面发声的发声装置，双面发声的发声装置通过设置磁路系统和两套振动系统，磁路系统同时驱动两套振动系统，使得两套振动系统各自发声，从而实现使得发声装置具有较好的音效的目的。
 技术问题
然而，现有发声装置的磁路系统的磁路效率较低，导致两套振动系统的发声效果较差。
因此，有必要提供一种发声效果较佳的发声装置。
 技术解决方案
本发明的技术方案如下：一种发声装置，包括支架以及固接于所述支架的磁路系统、第一振动系统和第二振动系统，所述支架具有朝向相反的第一开口和第二开口，所述磁路系统用于驱动所述第一振动系统自所述第二开口朝向所述第一开口的第一方向发声且驱动所述第二振动系统朝与所述第一方向相反的第二方向发声，所述第一振动系统包括第一音圈，所述第二振动系统包括第二音圈，所述磁路系统包括沿所述第二方向依次间隔且相对设置的第一磁钢、第二磁钢以及第三磁钢，所述第一磁钢中与所述第二磁钢相对的磁极的极性和所述第二磁钢中与所述第一磁钢相对的磁极的极性相同，所述第二磁钢中与所述第三磁钢相对的磁极的极性和所述第三磁钢中与所述第二磁钢相对的磁极的极性相同，所述第一音圈同时套设在所述第一磁钢与所述第二磁钢的外侧，所述第二音圈同时套设在所述第二磁钢与所述第三磁钢的外侧。
可选的，所述磁路系统还包括第一极芯和第二极芯，所述第一极芯设置在所述第一磁钢与所述第二磁钢之间且所述第一极芯在垂直于所述第一方向的方向上与所述第一音圈相对设置，所述第二极芯设置在所述第二磁钢与所述第三磁钢之间且所述第二极芯在垂直于所述第二方向的方向上与所述第二音圈相对设置。
可选的，所述第一音圈的中心点与所述第一极芯的中心点重合，所述第二音圈的中心点与所述第二极芯的中心点重合。
可选的，所述第一磁钢的尺寸与所述第三磁钢的尺寸相同，所述第二磁钢在沿垂直于第一方向的第三方向的横截面的面积与所述第一磁钢在沿所述第三方向的横截面的面积相等，且第二磁钢在第一方向上的高度大于第一磁钢在第一方向上的高度。
可选的，所述磁路系统还包括第一磁框和第二磁框，所述第一磁框设置有第一收纳空间，所述第一磁钢、所述第二磁钢的一部分、所述第一极芯以及所述第一音圈均容置于所述第一收纳空间内，所述第二磁框设置有第二收纳空间，所述第三磁钢、所述第二磁钢的一部分、所述第二极芯以及所述第二音圈均容置于所述第二收纳空间内。
可选的，所述第一磁框包括顶壁、多个相互间隔设置的第一侧壁以及多个第一限位部，所述多个相互间隔设置的第一侧壁围设于所述顶壁的周缘以形成所述第一收纳空间，每一所述第一限位部固接于所述顶壁且位于相邻两个所述第一侧壁之间；所述第二磁框包括底壁、多个相互间隔设置的第二侧壁以及多个第二限位部，所述多个相互间隔设置的第二侧壁围设于所述底壁的周缘以形成所述第二收纳空间，每一所述第二限位部固接于所述底壁且位于相邻两个所述第二侧壁之间。
可选的，所述支架包括本体部和多个相互间隔设置的承载部，所述本体部设置有容纳空间，每一所述承载部具有相背设置的第一端部和第二端部、朝向所述第一开口的第一端面以及朝向所述第二开口的第二端面，每一所述承载部的第一端部均与所述本体部中朝向所述容纳空间的一面连接，每一所述承载部的第二端部围设形成一安装通道，所述第二端面位于所述安装通道内，所述第二磁框的一部分设置在所述安装通道内且每一所述第二侧壁与每一所述承载部的第二端面连接，每一所述第一侧壁与每一所述承载部的第一端面连接。
可选的，所述第一振动系统还包括第一球顶，所述第一球顶包括第一主体部、两个相对设置的第一连接部以及与所述第一主体部连接的第一保持部，所述第一主体部具有朝向所述第一开口的第一面和朝向所述第二开口的第二面，所述两个相对设置的第一连接部设置在所述第二面且一个所述第一连接部设置在相邻两个所述承载部之间，所述第一保持部设置有第一通孔，所述第一保持部通过所述第一通孔套设在所述第一磁钢的外侧且与所述第一音圈中靠近所述顶壁的一面连接；所述第二振动系统还包括设置在所述承载部中背离所述第一磁框的一侧的第二球顶，所述第二球顶包括第二主体部、两个相对设置的第二连接部以及第二保持部，所述第二主体部具有朝向所述第一开口的第三面和朝向所述第二开口的第四面，所述两个相对设置的第二连接部设置在所述第三面且一个所述第二连接部设置在相邻两个承载部之间，一个所述第二连接部位于所述两个相对设置的第一连接部之间，所述第二保持部设置有第二通孔，所述第二保持部通过所述第二通孔套设在所述第二磁钢的外侧且与所述第二音圈中靠近所述底壁的一面连接。
可选的，所述第一振动系统还包括第一音膜和位于所述第一音膜外侧的第二音膜，所述第一音膜设置有第一开孔，所述第一音膜通过所述第一开孔套设在所述第一磁框的外侧，所述第一音膜具有朝向所述第二开口的第一连接面，所述第一连接面中靠近所述第一开孔的一部分与所述多个第一限位部连接，所述第一连接面中背离所述第一开孔的一部分与所述第一主体部连接，所述第二音膜连接在所述第一主体部和所述本体部之间；所述第二振动系统还包括第三音膜和位于所述第三音膜外侧的第四音膜，所述第三音膜设置有第二开孔，所述第三音膜通过所述第二开孔套设在所述第二磁框的外侧，所述第三音膜具有朝向所述第一开口的第二连接面，所述第二连接面中靠近所述第二开孔的一部分与所述多个第二限位部连接，所述第二连接面中背离所述第二开孔的一部分与所述第二主体部连接，所述第四音膜连接在所述第二主体部和所述本体部之间。
可选的，所述第一振动系统还包括第一连接件，所述第一连接件设置有第一连接孔，所述第一连接件通过所述第一连接孔固接于第一磁框，且所述第一连接件与第一音膜连接；所述第二振动系统还包括第二连接件，所述第二连接件设置有第二连接孔，所述第二连接件通过所述第二连接孔固接于所述第二磁框，且所述第二连接件与第二音膜连接。
 有益效果
本发明的有益效果在于：本发明的磁路系统包括依次间隔且相对设置的第一磁钢、第二磁钢和第三磁钢，第一磁钢和第二磁钢可以同时为第一音圈提供磁场，第二磁钢和第三磁钢可以同时为第二音圈提供磁场，相比于仅使用两个磁钢的磁路系统，本发明可以提高磁路系统的磁路效率，使得第一音圈和第二音圈的振动幅度增大，从而提升发声装置所发出声音的响度。
 附图说明
图1为本发明提供的发声装置的第一种结构示意图；
图2为本发明提供的发声装置的第二种结构示意图；
图3为图2所示发声装置的爆炸图；
图4为图1所示发声装置沿P-P方向的剖视图；
图5为图1所示发声装置沿P-P方向的局部剖视图；
图6为图3所示发声装置中支架的结构示意图；
图7为图3所示发声装置中磁路系统、第一音圈、第二音圈、第一补强件和第二补强件的连接示意图；
图8为图2所示发声装置的局部爆炸图。
 本发明的实施方式
下面结合附图和实施方式对本发明作进一步说明。
请参阅图1至图3，该发声装置100包括支架1、磁路系统2、第一振动系统3和第二振动系统4。磁路系统2、第一振动系统3和第二振动系统4固接于支架1，磁路系统2用于驱动第一振动系统3和第二振动系统4朝相反的方向发声。
其中，支架10具有朝向相反的第一开口11和第二开口12。磁路系统2、第一振动系统3和第二振动系统4均固定连接在支架10上，磁路系统20用于驱动第一振动系统30朝自第二开口12朝向第一开口11的第一方向发声且驱动第二振动系统4朝与第一方向相反的第二方向发声，从而使得发声装置100实现双面发声的效果。
结合图3和图4所示，磁路系统2包括沿第二方向依次间隔且相对设置的第一磁钢21、第二磁钢22和第三磁钢23，第一磁钢21中与第二磁钢22相对的磁极的极性和第二磁钢22中与第一磁钢21相对的磁极的极性相同，第二磁钢22中与第一磁钢21相对的磁极的极性和第三磁钢23中与第二磁钢22相对的磁极的极性相同。可以理解的是，第一磁钢21、第二磁钢22和第三磁钢23分别具有南极和北极，其中第一磁钢21的南极与第二磁钢22的南极相对设置，第二磁钢22的北极与第三磁钢23的北极相对设置；或者第一磁钢21的北极与第二磁钢22的北极相对设置，第二磁钢22的南极与第三磁钢23的南极相对设置，从而使得第一磁钢21的充磁方向与第二磁钢22的充磁方向相反，第二磁钢22的充磁方向与第三磁钢23的充磁方向相反。
第一振动系统3可以包括第一音圈31，第一音圈31同时套设在第一磁钢21和第二磁钢22的外侧。可以理解的是，第一音圈31为具有中空区域的环状结构，第一磁钢21的一部分和第二磁钢22的一部分均位于中空区域内，第一磁钢21和第二磁钢22可以同时为第一音圈31提供磁场，以使得第一音圈31在经过第一音圈31的交变电流、第一磁钢21的磁场以及第二磁钢22的磁场的同时作用下产生振动。
第二振动系统4可以包括第二音圈41，第二音圈41同时套设在第二磁钢22和第三磁钢23的外侧。可以理解的是，第二音圈41为具有中空区域的环状结构，第二磁钢22的一部分和第三磁钢23的一部分均位于中空区域内，第二磁钢22和第三磁钢23可以同时为第二音圈41提供磁场，以使得第二音圈41在经过第二音圈41的交变电流、第二磁钢22的磁场以及第三磁钢23的磁场的同时作用下产生振动。
相关技术中的发声装置通常采用一个磁钢与第一音圈31配合，并采用另一个磁钢与第二音圈41配合。相比于相关技术，本发明的第二磁钢22可以同时为第一音圈31和第二音圈41提供磁场，可以提高磁路系统2的磁路效率，使得第一音圈31和第二音圈41的振动幅度增大，从而提升发声装置100所发出声音的响度。
请参阅图3至图5，磁路系统2还包括第一极芯24和第二极芯25，第一极芯24设置在第一磁钢21和第二磁钢22之间，且第一极芯24在垂直于第一方向的方向上与第一音圈31相对设置。可以理解的是，第一极芯24位于第一磁钢21和第二磁钢22的间隔位置，第一磁钢21的一部分、第一极芯24和第二磁钢22的一部分均位于第一音圈31的中空区域内。第一极芯24可以将第一磁钢21所产生的磁场和第二磁钢22所产生的磁场导向垂直于第一音圈31的方向。
第二极芯25设置在第二磁钢22和第三磁钢23之间，且第二极芯25在垂直于第二方向的方向上与第二音圈41相对设置。可以理解的是，第二极芯25位于第二磁钢22和第三磁钢23的间隔位置，第二磁钢22的一部分、第二极芯25和第三磁钢23的一部分均位于第二音圈41的中空区域内。第二极芯25可以将第二磁钢22所产生的磁场和第三磁钢23所产生的磁场导向垂直于第二音圈41的方向。
本发明中，第一音圈31的中心点与第一极芯24的中心点重合。比如，第一音圈31沿垂直于第一方向的第三方向的横截面为圆环，第一极芯24为圆柱体，第一音圈31的圆环中心与第一极芯24的圆柱体中心重合，即第一极芯24位于第一音圈31的中心位置，此时可以使得第一磁钢21、第二磁钢22和第一极芯24为第一音圈31所提供的磁场驱动力最强，从而进一步提高第一音圈31的振动效果。第二音圈41的中心点与第二极芯25的中心点重合。比如，第二音圈41的结构与第一音圈31的形状相同，均为圆环状，第二极芯25与第一极芯24的形状相同，均为圆柱体，第二音圈41的圆环中心与第二极芯25的圆柱体中心重合，即第二极芯25位于第二音圈41的中心位置，此时可以使得第二磁钢22、第三磁钢23和第二极芯25为第二音圈41所提供的磁场驱动力达到最大，进一步提高第二音圈41的振动效果。
第一磁钢21的尺寸与第三磁钢23的尺寸相同，其中尺寸包括长度、宽度和高度。第二磁钢22在沿垂直于第一方向的第三方向的横截面的面积与第一磁钢21在沿第三方向的横截面的面积相等，且第二磁钢22在第一方向上的高度大于第一磁钢21在第一方向上的高度。比如第一磁钢21、第二磁钢22和第三磁钢23均为圆柱体结构，第一磁钢21的直径和高度均与第三磁钢23的直径和高度相同，第一磁钢21沿第三方向的横截面的面积等于第二磁钢22沿第三方向的横截面的面积，即第一磁钢21的直径、第二磁钢22和第三磁钢23的直径均相等。当第一磁钢21、第二磁钢22和第三磁钢23均固接于支架1上时，在第一方向上，第一磁钢21的外表面、第二磁钢22的外表面和第三磁钢23的外表面齐平。
磁路系统2还可以包括第一磁框26，第一磁框26设置有第一收纳空间261，第一磁钢21、第二磁钢22的一部分、第一极芯24以及第一音圈31均容置在第一收纳空间261内。其中，第一磁框26可以包括顶壁262、多个第一侧壁263以及多个第一限位部264，多个第一侧壁263围设在顶壁262的周缘以形成第一收纳空间261，而且多个第一侧壁263相互间隔设置以在相邻两个第一侧壁263之间形成第一间隙265，每一个第一限位部264固接于顶壁262且位于相邻两个第一侧壁263所形成的第一间隙265内。
第一限位部264可以包括依次连接的第一段2641、第二段2642和第三段2643，第二段2642相对于第一段2641沿第二方向弯折设置，第三段2643相对于第二段2642沿垂直于第一方向的第三方向弯折设置。第一段2641与顶壁262连接。
磁路系统2还可以包括第二磁框27，第二磁框27的结构与第一磁框26的结构相同。比如，第二磁框可以设置有第二收纳空间271，第三磁钢23、第二磁钢22的一部分、第二极芯25以及第二音圈41均容置在第二收纳空间271内。其中，第二磁框26可以包括底壁272、多个第二侧壁273以及多个第二限位部274，多个第二侧壁273围设在底壁272的周缘以形成第二收纳空间271，而且多个第二侧壁273相互间隔设置以在相邻两个第二侧壁273之间形成第二间隙275，每一个第二限位部274固接于底壁272且位于相邻两个第二侧壁273所形成的第二间隙275内。
第二限位部274可以包括依次连接的第四段2741、第五段2742和第六段2743，第五段2742相对于第四段2741沿第二方向弯折设置，第六段2743相对于第五段2742沿垂直于第一方向的第三方向弯折设置。第四段2741与底壁272连接。
结合图4和图6所示，支架1可以包括本体部13和多个相互间隔设置的承载部14，本体部13设置有容纳空间15，容纳空间15可以容置磁路系统2、第一振动系统3和第二振动系统4。多个承载部14的结构相同，每一个承载部14可以具有多个端面，比如承载部14可以包括相背设置的第一端面141和第二端面142，第一端面141朝向第一开口11设置，第一端面141可以承载第一振动系统3，第二端面142朝向第二开口12设置，第二端面142可以承载第二振动系统4。每一个承载部14还具有相背设置的第一端部143和第二端部144，每一承载部14的第一端部143与本体部13中朝向容纳空间15的一面连接，多个承载部14的第二端部144围设形成一安装通道16，第二端面142位于安装通道16内。
其中，第一磁框26的每一个第一侧壁263均与每一个承载部14的第一端面141连接。比如，第一磁框26可以包括四个第一侧壁263，支架1可以包括四个承载部14，一个第一侧壁263与一个承载部14的第一端面 141连接，以使得第一磁框26与支架1固定连接。
第二磁框27可以设置在安装通道16内，而且第二磁框27的每一个第二侧壁273均与每一个承载部14的第二端面142连接，以使得第二磁框27与支架1固定连接。
如图2、图5和图8所示，第一振动系统3还可以包括第一球顶32、第一音膜33、第二音膜34、第一弹波组件35和第一连接件36。第一连接件36同时与第一磁框26和第一音膜33连接，第一音圈31、第一音膜33、第二音膜34和第一弹波组件35均与第一球顶32连接，以使得第一球顶32、第一音膜33和第二音膜34可以跟着第一音圈31一起振动且朝第一方向发出声音。第一球顶32可以包括第一主体部321、两个相对设置的第一连接部322以及与第一主体部321连接的第一保持部323。第一主体部321具有背向第二开口12的第一面3211和朝向第二开口12的第二面3212，两个相对设置的第一连接部322均设置在第二面3212，且一个第一连接部322设置在相邻两个承载部14之间或者说两个承载部14的间隔位置。第一保持部323设置有第一通孔3231，第一保持部3231通过第一通孔3231套设在第一磁钢21的外侧且与第一音圈31中靠近顶壁262的一面连接。
第一音膜33设置有第一开孔331，第一音膜33通过第一开孔331套设在第一磁框26的外侧，而且第一音膜33同时与第一磁框26的多个第一限位部264和第一球顶32的第一主体部321连接。比如，第一音膜33可以包括具有朝向第二开口12的第一连接面332和背向第二开口12的第二连接面333，第一连接面332中靠近第一开孔331的一部分连接在多个第一限位部264的第三段2643上，第一连接面332中背离第一开孔331的一部分连接在第一球顶32的第一主体部321上。
第一连接件36设置有第一连接孔361，第一连接件36通过第一连接孔361通过第一连接孔361与第一磁框26固定连接，而且第一连接件36中朝向第二开口12的一面与第一音膜33的第二连接面333连接。
第二音膜34设置在第一音膜33的外侧，而且第二音膜34连接在支架1的本体部13与第一球顶32的第一主体部321之间。比如，第二音膜34具有通孔、一个朝向第二开口的表面和另一个背向第二开口的表面，朝向第二开口的表面中靠近通孔的一部分与第一主体部321中背离第一音膜33的一侧连接，朝向第二开口的表面中背离通孔的一部分与本体部13中在第一方向上背向容纳空间15设置的端面连接，第一音膜33位于第二音膜34的通孔内。
第二振动系统4还可以包括第二球顶42、第三音膜43、第四音膜44、第二弹波组件45和第二连接件46。第一连接件36同时与第一磁框26和第一音膜33连接，第一音圈31、第一音膜33、第二音膜34和第一弹波组件35均与第一球顶32连接，以使得第一球顶32、第一音膜33和第二音膜34可以跟着第一音圈31一起振动且朝第一方向发出声音。
其中，第二球顶42的结构可以与第一球顶32的结构相同。比如，第二球顶42也可以包括第二主体部421、两个相对设置的第二连接部422以及与第二主体部421连接的第二保持部423。第二主体部421具有背向第二开口12的第三面4211和朝向第二开口12的第四面4212，两个相对设置的第二连接部422均设置在第四面4212，且一个第二连接部422设置在相邻两个承载部14之间或者说两个承载部14的间隔位置。第二保持部423设置有第二通孔4231，第二保持部423通过第二通孔4231套设在第二磁钢22的外侧且与第二音圈41中靠近底壁272的一面连接。当然，第二球顶42的结构也可以与第一球顶32的结构不同。
第三音膜43的结构可以与第一音膜33的结构相同。比如第三音膜43设置有第二开孔431，第三音膜43通过第二开孔431套设在第二磁框27的外侧，而且第三音膜43同时与第二磁框27的多个第二限位部274和第二球顶42的第二主体部421连接。比如，第三音膜43可以包括具有朝向第一开口11的第三连接面432和背向第一开口11的第四连接面433，第三连接面432中靠近第二开孔431的一部分连接在多个第二限位部274的第六段2743上，第三连接面432中背离第二开孔431的一部分连接在第二球顶42的第二主体部421上。当然，第三音膜43的结构也可以与第一音膜33的结构不同。
第二连接件46的结构可以与第一连接件36的结构相同，比如第二连接件46设置有第二连接孔461，第二连接件46通过第二连接孔461通过第二连接孔461与第二磁框27固定连接，而且第二连接件46中朝向第一开口11的一面与第三音膜43的第四连接面433连接。当然，第二连接件46的结构与第一连接件36的结构相同。
第四音膜44的结构可以与第二音膜34的结构相同。第四音膜44设置在第三音膜43的外侧，而且第四音膜44连接在支架1的本体部13与第二球顶42的第二主体部421之间。比如，第四音膜44具有通孔、一个朝向第一开口11的表面和另一个背向第一开口11的表面，朝向第一开口11的表面中靠近通孔的一部分与第二主体部421中背离第三音膜43的一侧连接，朝向第一开口11的表面中背离通孔的一部分与本体部13中在第二方向上背向容纳空间15设置的另一个端面连接，第三音膜43位于第四音膜44的通孔内。当然，第四音膜44的结构也可以与第二音膜34的结构不同。
请继续参阅图8，第一弹波组件35可以包括两个相对设置的第一弹波，一个第一弹波设置在两个相邻的承载部14之间且与一个第一连接部322连接，另一个第一弹波设置在另外两个相邻的承载部14之间且与另一个第一连接部322连接。第二弹波组件45可以包括两个相对设置的第二弹波，一个第二弹波设置在两个第一弹波之间且位于两个相邻的承载部14之间，一个第二弹波还与一个第二连接部422连接。比如，支架11可以包括依次间隔设置的第一承载部、第二承载部、第三承载部和第四承载部，一个第一弹波设置在第一承载部和第二承载部的间隔位置，另一个第一弹波设置在第三承载部和第四承载部之间的间隔位置。一个第二弹波设置在第二承载部和第三承载部的间隔位置，另一个第二弹波设置在第一承载部和第四承载部之间的间隔位置。
请继续参阅图7和图8，第一振动系统3还包括第一补强件37，第一补强件37设置有第三通孔371，第一补强件37通过第三通孔371套设在第二磁钢22的外侧且与第一音圈31中背离顶壁262的一面连接。第一补强件37还具有自第一磁框26的第一收纳空间261内部朝第一收纳空间261的外部延伸的第一连接结构，该第一连接结构与第一球顶32连接。第一补强件37可以与第一音圈31和第一球顶32一起振动，相比于仅通过第一球顶32的第一保持部323和第一音圈31连接，第一补强件37可以增加第一球顶32与第一音圈31的连接强度，从而提高第一音圈31带动第一球顶32一起振动的振动效果。
第二振动系统4还包括第二补强件47，第二补强件47的结构可以与第二补强件47相同，比如第二补强件47设置有第四通孔471，第二补强件47通过第四通孔471套设在第二磁钢22的外侧且与第二音圈41中背离底壁272的一面连接。第二补强件47还具有自第二磁框27的第二收纳空间271内部朝第二收纳空间271的外部延伸的第二连接结构，该第二连接结构与第二球顶42连接。第二补强件47可以与第二音圈41和第二球顶42一起振动，相比于仅通过第二球顶42的第二保持部423和第二音圈41连接，第二补强件47可以增加第二球顶42与第二音圈41的连接强度，从而提高第二音圈41带动第二球顶42一起振动的振动效果。当然，第二补强件47的结构也可以第一补强件37的结构不同。
以上所述的仅是本发明的实施方式，在此应当指出，对于本领域的普通技术人员来说，在不脱离本发明创造构思的前提下，还可以做出改进，但这些均属于本发明的保护范围。

Claims (10)

  1. 一种发声装置，包括支架以及固接于所述支架的磁路系统、第一振动系统和第二振动系统，所述支架具有朝向相反的第一开口和第二开口，所述磁路系统用于驱动所述第一振动系统自所述第二开口朝向所述第一开口的第一方向发声且驱动所述第二振动系统朝与所述第一方向相反的第二方向发声，所述第一振动系统包括第一音圈，所述第二振动系统包括第二音圈，其特征在于，所述磁路系统包括沿所述第二方向依次间隔且相对设置的第一磁钢、第二磁钢以及第三磁钢，所述第一磁钢中与所述第二磁钢相对的磁极的极性和所述第二磁钢中与所述第一磁钢相对的磁极的极性相同，所述第二磁钢中与所述第三磁钢相对的磁极的极性和所述第三磁钢中与所述第二磁钢相对的磁极的极性相同，所述第一音圈同时套设在所述第一磁钢与所述第二磁钢的外侧，所述第二音圈同时套设在所述第二磁钢与所述第三磁钢的外侧。
  2. 根据权利要求1所述的发声装置，其特征在于，所述磁路系统还包括第一极芯和第二极芯，所述第一极芯设置在所述第一磁钢与所述第二磁钢之间且所述第一极芯在垂直于所述第一方向的方向上与所述第一音圈相对设置，所述第二极芯设置在所述第二磁钢与所述第三磁钢之间且所述第二极芯在垂直于所述第二方向的方向上与所述第二音圈相对设置。
  3. 根据权利要求2所述的发声装置，其特征在于，所述第一音圈的中心点与所述第一极芯的中心点重合，所述第二音圈的中心点与所述第二极芯的中心点重合。
  4. 根据权利要求1所述的发声装置，其特征在于，所述第一磁钢的尺寸与所述第三磁钢的尺寸相同，所述第二磁钢在沿垂直于第一方向的第三方向的横截面的面积与所述第一磁钢在沿所述第三方向的横截面的面积相等，且第二磁钢在第一方向上的高度大于第一磁钢在第一方向上的高度。
  5. 根据权利要求2或3所述的发声装置，其特征在于，所述磁路系统还包括第一磁框和第二磁框，所述第一磁框设置有第一收纳空间，所述第一磁钢、所述第二磁钢的一部分、所述第一极芯以及所述第一音圈均容置于所述第一收纳空间内，所述第二磁框设置有第二收纳空间，所述第三磁钢、所述第二磁钢的一部分、所述第二极芯以及所述第二音圈均容置于所述第二收纳空间内。
  6. 根据权利要求5所述的发声装置，其特征在于，所述第一磁框包括顶壁、多个相互间隔设置的第一侧壁以及多个第一限位部，所述多个相互间隔设置的第一侧壁围设于所述顶壁的周缘以形成所述第一收纳空间，每一所述第一限位部固接于所述顶壁且位于相邻两个所述第一侧壁之间；
    所述第二磁框包括底壁、多个相互间隔设置的第二侧壁以及多个第二限位部，所述多个相互间隔设置的第二侧壁围设于所述底壁的周缘以形成所述第二收纳空间，每一所述第二限位部固接于所述底壁且位于相邻两个所述第二侧壁之间。
  7. 根据权利要求6所述的发声装置，其特征在于，所述支架包括本体部和多个相互间隔设置的承载部，所述本体部设置有容纳空间，每一所述承载部具有相背设置的第一端部和第二端部、朝向所述第一开口的第一端面以及朝向所述第二开口的第二端面，每一所述承载部的第一端部均与所述本体部中朝向所述容纳空间的一面连接，每一所述承载部的第二端部围设形成一安装通道，所述第二端面位于所述安装通道内，所述第二磁框的一部分设置在所述安装通道内且每一所述第二侧壁与每一所述承载部的第二端面连接，每一所述第一侧壁与每一所述承载部的第一端面连接。
  8. 根据权利要求7所述的发声装置，其特征在于，所述第一振动系统还包括第一球顶，所述第一球顶包括第一主体部、两个相对设置的第一连接部以及与所述第一主体部连接的第一保持部，所述第一主体部具有朝向所述第一开口的第一面和朝向所述第二开口的第二面，所述两个相对设置的第一连接部设置在所述第二面且一个所述第一连接部设置在相邻两个所述承载部之间，所述第一保持部设置有第一通孔，所述第一保持部通过所述第一通孔套设在所述第一磁钢的外侧且与所述第一音圈中靠近所述顶壁的一面连接；
    所述第二振动系统还包括设置在所述承载部中背离所述第一磁框的一侧的第二球顶，所述第二球顶包括第二主体部、两个相对设置的第二连接部以及第二保持部，所述第二主体部具有朝向所述第一开口的第三面和朝向所述第二开口的第四面，所述两个相对设置的第二连接部设置在所述第三面且一个所述第二连接部设置在相邻两个承载部之间，一个所述第二连接部位于所述两个相对设置的第一连接部之间，所述第二保持部设置有第二通孔，所述第二保持部通过所述第二通孔套设在所述第二磁钢的外侧且与所述第二音圈中靠近所述底壁的一面连接。
  9. 根据权利要求8所述的发声装置，其特征在于，所述第一振动系统还包括第一音膜和位于所述第一音膜外侧的第二音膜，所述第一音膜设置有第一开孔，所述第一音膜通过所述第一开孔套设在所述第一磁框的外侧，所述第一音膜具有朝向所述第二开口的第一连接面，所述第一连接面中靠近所述第一开孔的一部分与所述多个第一限位部连接，所述第一连接面中背离所述第一开孔的一部分与所述第一主体部连接，所述第二音膜连接在所述第一主体部和所述本体部之间；
    所述第二振动系统还包括第三音膜和位于所述第三音膜外侧的第四音膜，所述第三音膜设置有第二开孔，所述第三音膜通过所述第二开孔套设在所述第二磁框的外侧，所述第三音膜具有朝向所述第一开口的第二连接面，所述第二连接面中靠近所述第二开孔的一部分与所述多个第二限位部连接，所述第二连接面中背离所述第二开孔的一部分与所述第二主体部连接，所述第四音膜连接在所述第二主体部和所述本体部之间。
  10. 根据权利要求6所述的发声装置，其特征在于，所述第一振动系统还包括第一连接件，所述第一连接件设置有第一连接孔，所述第一连接件通过所述第一连接孔固接于第一磁框，且所述第一连接件与第一音膜连接；所述第二振动系统还包括第二连接件，所述第二连接件设置有第二连接孔，所述第二连接件通过所述第二连接孔固接于所述第二磁框，且所述第二连接件与第二音膜连接。
PCT/CN2020/139032 2020-11-30 2020-12-24 发声装置 Ceased WO2022110429A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202011384279.XA CN112468941A (zh) 2020-11-30 2020-11-30 发声装置
CN202011384279.X 2020-11-30

Publications (1)

Publication Number Publication Date
WO2022110429A1 true WO2022110429A1 (zh) 2022-06-02

Family

ID=74805243

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/139032 Ceased WO2022110429A1 (zh) 2020-11-30 2020-12-24 发声装置

Country Status (3)

Country Link
US (1) US11750978B2 (zh)
CN (1) CN112468941A (zh)
WO (1) WO2022110429A1 (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112468941A (zh) * 2020-11-30 2021-03-09 瑞声新能源发展(常州)有限公司科教城分公司 发声装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100549471B1 (ko) * 1998-03-11 2006-02-07 소니 가부시끼 가이샤 스피커 및 스피커장치
CN105338454A (zh) * 2015-11-20 2016-02-17 瑞声光电科技(常州)有限公司 长冲程扬声器
CN106101959A (zh) * 2016-07-18 2016-11-09 瑞声科技(新加坡)有限公司 扬声器
CN209659586U (zh) * 2018-12-29 2019-11-19 瑞声科技(新加坡)有限公司 发声器件
CN211959524U (zh) * 2019-12-30 2020-11-17 瑞声科技(新加坡)有限公司 发声器件
CN112468941A (zh) * 2020-11-30 2021-03-09 瑞声新能源发展(常州)有限公司科教城分公司 发声装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3946117B2 (ja) * 2002-10-07 2007-07-18 シチズン電子株式会社 発音体の構造
US10194246B2 (en) * 2012-08-06 2019-01-29 Correlated Magnetics Research, Llc Magnet and coil assembly
US11184712B2 (en) * 2015-05-19 2021-11-23 Bose Corporation Dual-field single-voice-coil transducer
NL2017514B1 (en) * 2016-09-22 2018-03-29 Univ Delft Tech Loudspeaker unit with multiple drive units
WO2018132772A1 (en) * 2017-01-12 2018-07-19 Mark Olsson Magnetic field canceling audio speakers for use with buried utility locators or other devices
CN111698615A (zh) * 2019-03-14 2020-09-22 歌尔股份有限公司 双面微型发声装置和电子产品

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100549471B1 (ko) * 1998-03-11 2006-02-07 소니 가부시끼 가이샤 스피커 및 스피커장치
CN105338454A (zh) * 2015-11-20 2016-02-17 瑞声光电科技(常州)有限公司 长冲程扬声器
CN106101959A (zh) * 2016-07-18 2016-11-09 瑞声科技(新加坡)有限公司 扬声器
CN209659586U (zh) * 2018-12-29 2019-11-19 瑞声科技(新加坡)有限公司 发声器件
CN211959524U (zh) * 2019-12-30 2020-11-17 瑞声科技(新加坡)有限公司 发声器件
CN112468941A (zh) * 2020-11-30 2021-03-09 瑞声新能源发展(常州)有限公司科教城分公司 发声装置

Also Published As

Publication number Publication date
US11750978B2 (en) 2023-09-05
US20220174415A1 (en) 2022-06-02
CN112468941A (zh) 2021-03-09

Similar Documents

Publication Publication Date Title
US7885425B2 (en) Electrodynamic electroacoustic transducer and electronic device
US7480392B2 (en) Plate type speaker using horizontal vibration voice coil
CN216960175U (zh) 一种同轴扬声器
CN115396794B (zh) 多功能发声器件
CN209267799U (zh) 发声装置以及电子设备
WO2018036037A1 (zh) 线性振动马达
KR19990077667A (ko) 스피커 및 스피커장치
CN109889959B (zh) 发声器件
CN110268724A (zh) 扬声器
WO2022110367A1 (zh) 发声装置
WO2021174577A1 (zh) 发声器件
US11750978B2 (en) Sound generator
CN115336288A (zh) 电声换能器和包括所述电声换能器的扬声器、麦克风和电子设备
KR100576267B1 (ko) 다수의 코일판을 구비하는 평판형 스피커
TW201328372A (zh) 喇叭
KR101982512B1 (ko) 자력 누설이 없는 마그넷 구조 및 이를 포함하는 패널 진동형 음향 발생 장치
WO2022166376A1 (zh) 发声单体
CN209982717U (zh) 一种动圈扬声器
US20050123166A1 (en) Structure of speaker
KR20050054653A (ko) 평판형 스피커용 보이스코일판
CN112468939B (zh) 一种发声装置
CN214177553U (zh) 发声器件
CN215818610U (zh) 一种高功率大振幅扬声器
CN118900390B (zh) 扬声器
CN120602868B (zh) 扬声器

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: 20963317

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: 20963317

Country of ref document: EP

Kind code of ref document: A1