WO2022143235A1 - Haut-parleur et dispositif terminal - Google Patents

Haut-parleur et dispositif terminal Download PDF

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Publication number
WO2022143235A1
WO2022143235A1 PCT/CN2021/139405 CN2021139405W WO2022143235A1 WO 2022143235 A1 WO2022143235 A1 WO 2022143235A1 CN 2021139405 W CN2021139405 W CN 2021139405W WO 2022143235 A1 WO2022143235 A1 WO 2022143235A1
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WO
WIPO (PCT)
Prior art keywords
voice coil
pole piece
top wall
wall
vibration
Prior art date
Application number
PCT/CN2021/139405
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English (en)
Chinese (zh)
Inventor
刘金华
黎椿键
朱统
闫涛
郭李
Original Assignee
华为技术有限公司
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Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Publication of WO2022143235A1 publication Critical patent/WO2022143235A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06—Loudspeakers

Definitions

  • the present application relates to the field of audio equipment, and in particular, to a speaker and a terminal device.
  • miniature electro-acoustic transducers are usually required to play audio signals, among which the most commonly used miniature electro-acoustic transducers are moving coil type miniature speakers.
  • the energized circuit inside the loudspeaker is usually designed as a flexible circuit board (FPC) structure to ensure that the copper layer is thin and the stress is small to avoid the occurrence of stress concentration. disconnected.
  • FPC flexible circuit board
  • the flexible circuit board needs to be connected to the voice coil on the inside of the speaker, and needs to be connected to the basin frame on the outside of the speaker. Therefore, the pad structure needs to be designed on both the inner and outer sides of the flexible circuit board.
  • the flexible circuit board Since the flexible circuit board is usually set at the corner of the speaker, it is usually necessary to connect the outer pads of the two flexible circuit boards on the two corners as the power lines through the circuit board on the basin frame, and then pass a corner The two flexible circuit boards are drawn out to connect with external devices.
  • the circuit board on the basin frame connecting the two corners needs to occupy a certain space, which will limit the size of the speaker in the length direction, which will limit the area used for arranging the magnetic circuit inside the speaker, which will reduce the driving ability of the speaker and make it difficult for external speakers. poor effect.
  • a loudspeaker which includes a basin frame, a magnetic circuit component and a vibration component, wherein the magnetic circuit component and the vibration component are both disposed on the basin frame, and the vibration component includes a sound A coil and a flexible circuit board, the voice coil is arranged in the basin frame, the flexible circuit board includes a vibration part, a fixed part and a bending part, the vibration part is connected with the voice coil, and the fixed part is connected with The basin frame is connected, the bending part is connected to the vibration part and the fixed part, the vibration part is provided with two first pads, and the corresponding fixed part is provided with two second pads.
  • a pad two lines for electrically connecting the first pad and the second pad are arranged on the corresponding bending portion, and the first pad is used for electrical connection with the voice coil,
  • the second solder pad is used for connecting with the basin frame, there is only one bent portion in one of the flexible circuit boards, and the two lines extend side by side in the bent portion.
  • the speaker is designed with two side-by-side dual-channel circuit structures on a flexible circuit board, so that both positive and negative electrodes can be drawn out of the basin frame through the two first pads of the vibration part of a flexible circuit board, so that the basin frame and the flexible circuit can be connected.
  • the circuit board When the circuit board is connected, it is not necessary to connect the two corners of the basin frame, and only need to draw the positive and negative circuits from one corner, so that the influence of the basin frame on the external dimensions of the speaker can be reduced, and the size of the basin frame can be increased to make the magnetic
  • the area and volume of the circuit components are increased, and the magnetic induction intensity B is increased, thereby improving the power conversion coefficient of the speaker, thereby increasing the speaker's external output capability and obtaining better sound effects.
  • the basin frame includes a top wall, a bottom wall disposed opposite to the top wall, and a side wall connecting the top wall and the bottom wall, the side walls surrounding An accommodating cavity is formed, and the voice coil is arranged in the accommodating cavity.
  • the magnetic circuit assembly includes a center magnet, a side magnet, a center pole piece, a side pole piece and a lower pole piece, the center magnet is arranged in the accommodating cavity, and the side magnets Set on one side of the center magnet, there is a gap between the side magnet and the center magnet, the voice coil is sleeved outside the center magnet, the voice coil is set in the gap, and the center
  • the pole piece is attached to the side of the central magnet facing the top wall
  • the side pole piece is arranged on the side wall and is located on the side of the side magnet facing the top wall
  • the lower pole piece It is arranged on one side of the center magnet and the side magnet close to the bottom wall.
  • the two side magnets there are two side magnets, and they are centrally symmetrically arranged on both sides of the center magnet.
  • the two side magnets arranged symmetrically in the center can improve the structural stability of the loudspeaker and enhance the magnetic field of the loudspeaker.
  • a mounting block is further provided on the side wall, a limit block is provided on the side of the mounting block facing away from the side wall, and the limit block is arranged on the mounting block close to the On one side of the top wall, the side pole piece is disposed on the side wall through the mounting block, and is limited by the limiting block on the side of the limiting block away from the top wall.
  • the design of the limit block can limit the position of the edge pole piece in the basin frame.
  • the vibrating assembly further includes a vibrating membrane and a secondary vibrating membrane, the inner circumference of the vibrating membrane is connected to the voice coil, and the outer circumference is connected to the top wall, and the secondary vibrating membrane is arranged on the top wall.
  • the voice coil On the side of the voice coil away from the vibrating membrane, one side of the secondary vibrating membrane is connected to the voice coil, and the other side is connected to the side pole piece, and the flexible circuit board is located between the secondary vibrating membrane and the side pole piece. between the diaphragms.
  • the design of the sub-diaphragm can ensure the balance of vibration and reduce swing, thereby preventing the rolling vibration of the voice coil.
  • the voice coil includes a top surface on a side close to the top wall, a bottom surface on a side close to the bottom wall, and a lead for connecting with the flexible circuit board, the lead connected to the first pad.
  • the connection between the voice coil and the flexible circuit board can be improved by connecting the lead wire with the first pad, and the connection failure can be effectively avoided.
  • the diaphragm includes a first connecting part, a second connecting part and a sounding part, the first connecting part is connected to the top surface, and the second connecting part is connected to the top surface.
  • the wall is connected, and the sounding part connects the first connecting part and the second connecting part.
  • the vibration component further includes a spherical top, and the spherical top is attached to the first connecting portion.
  • the design of the dome is beneficial to improve the sound quality of the speaker.
  • the voice coil further includes a washer, the washer is disposed on the top surface, and the first connection portion is connected to a side of the washer away from the top surface.
  • the arrangement of the washer can prevent interference between the diaphragm and the flexible circuit board when vibrating.
  • a block is provided on a side of the washer close to the top surface, and the vibrating portion is attached to a side of the block close to the top surface.
  • the arrangement of the stopper further increases the barrier between the diaphragm and the flexible circuit board, so as to prevent interference between the diaphragm and the flexible circuit board when vibrating.
  • the sub-diaphragm includes a third connection part, a fourth connection part and a balance part, the third connection part is connected to the bottom surface, and the fourth connection part is connected to the side The pole pieces are connected, and the balance part connects the third connection part and the fourth connection part.
  • the vibrating component includes two flexible circuit boards and the secondary vibrating membrane that are arranged symmetrically in the center.
  • the two flexible circuit boards and the sub-diaphragms arranged symmetrically in the center can improve the structural stability of the speaker.
  • the side pole piece is provided with an escape groove
  • the first pad is located on the escape groove
  • the balance part of the secondary diaphragm is located in the escape groove
  • the The fourth connection part is connected to the side of the side pole piece close to the escape groove.
  • the two first pads are located on two sides of the line and are respectively electrically connected to the leads of the voice coil, and the mounting block faces the side of the top wall
  • Two third pads are provided, and the second pads are respectively electrically connected to the third pads.
  • the basin frame is further provided with an internal circuit, one side of the internal circuit is connected to the third solder pad, and the other side extends toward the bottom wall.
  • the design of the inner circuit facilitates the electrical connection of the flexible circuit board with the outer circuit.
  • the basin frame further includes a cover plate covering the accommodating cavity, the cover plate is disposed on the top wall, and the side walls are further away from the accommodating cavity.
  • a sound outlet is formed by extending from one side of the sound outlet, and a sound outlet is provided on the side of the sound outlet close to the top wall, and the cover plate is provided with a sound outlet toward the sound outlet.
  • the cover plate is matched with the sound outlet part, so that the sound emitted by the speaker is transmitted outward through the sound outlet and the sound outlet slot.
  • a side of the top wall away from the accommodating cavity extends in a direction away from the bottom wall to form an installation portion, and the installation portion and the top wall surround an installation cavity, and the cover plate is arranged in the installation cavity.
  • a terminal device is provided, and the terminal device is provided with the speaker of the first aspect and any possible design.
  • FIG. 1 is a schematic structural diagram of a speaker according to an embodiment of the present application.
  • FIG. 2 is a partially exploded perspective view of the speaker shown in FIG. 1 .
  • FIG. 3 is a perspective view of the speaker shown in FIG. 2 from another angle.
  • FIG. 4 is a cross-sectional view of the speaker shown in FIG. 1 along IV-IV.
  • FIG. 5 is a perspective view of the speaker shown in FIG. 1 with the cover plate, the diaphragm and the dome removed.
  • the third pad 1331 is the third pad 1331
  • the first connection part 321 is connected to The first connection part 321
  • first”, second, etc. are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature defined as “first”, “second”, etc., may expressly or implicitly include one or more of that feature.
  • plural means two or more. Orientation terms such as “upper”, “lower”, “left” and “right” are defined relative to the orientation in which the components in the drawings are schematically placed. It should be understood that these directional terms are relative concepts, and they are used with Relative to the description and clarification, it may vary accordingly depending on the orientation in which the components are placed in the figures.
  • connection should be understood in a broad sense, for example, “connection” can be a fixed connection, a detachable connection, or an integrated; it can be Directly connected or indirectly connected through an intermediary.
  • connection can be a fixed connection, a detachable connection, or an integrated; it can be Directly connected or indirectly connected through an intermediary.
  • connection can be a fixed connection, a detachable connection, or an integrated; it can be Directly connected or indirectly connected through an intermediary.
  • and/or includes any and all combinations of one or more of the associated listed items.
  • a speaker 100 is provided in the first embodiment of the present application.
  • the loudspeaker 100 may be provided in an electronic device in a packaged or integrated manner.
  • the speaker 100 includes a basin frame 10 , a magnetic circuit component 20 and a vibration component 30 .
  • the basin frame 10 is a support component, used for supporting and protecting various components inside the speaker 100 , and can install and fix the speaker 100 in an electronic device.
  • the magnetic circuit assembly 20 and the vibration assembly 30 are both disposed on the basin frame 10 .
  • the magnetic circuit assembly 20 is used to provide a fixed magnetic field to drive the vibration assembly 30 to vibrate.
  • the vibration component 30 is used to excite a variable magnetic field through a current to interact with the fixed magnetic field to generate vibration and sound.
  • the basin frame 10 includes a top wall 11 , a bottom wall 12 disposed opposite to the top wall 11 , and a side wall 13 connecting the top wall 11 and the bottom wall 12 .
  • the side walls 13 are connected end to end, and an accommodating cavity 14 is enclosed between the side walls 13 .
  • the basin frame 10 further includes a cover plate 15 covering the accommodating cavity 14 .
  • the cover plate 15 is arranged on the top wall 11 .
  • the side wall 13 also extends to a side away from the accommodating cavity 14 to form a sound outlet 16 .
  • a sound outlet 161 is provided on the side of the sound outlet 16 close to the top wall 11 .
  • the cover plate 15 is provided with a sound outlet slot 151 toward the sound outlet 161 .
  • the cover plate 15 cooperates with the sound outlet 16 , so that the sound emitted by the speaker 100 propagates outward through the sound outlet 161 and the sound outlet slot 151 .
  • a side of the top wall 11 away from the accommodating cavity 14 extends in a direction away from the bottom wall 12 to form an installation portion 17 .
  • An installation cavity 18 is enclosed between the installation portion 17 and the top wall 11 .
  • the cover plate 15 is arranged in the installation cavity 18 .
  • the basin frame 10 is substantially a rectangular frame structure, and the side walls 13 are composed of two opposite long side walls 131 and two opposite short side walls 132 .
  • the magnetic circuit assembly 20 includes a center magnet 21 , a side magnet 22 , a center pole piece 23 , a side pole piece 24 and a lower pole piece 25 .
  • the central magnet 21 is disposed in the accommodating cavity 14 .
  • There are two side magnets 22 which are symmetrically arranged on both sides of the center magnet 21 .
  • the shape of the center pole piece 23 corresponds to the shape of the center magnet 21 , and the center pole piece 23 is attached to the side of the center magnet 21 facing the top wall 11 .
  • the side pole piece 24 is disposed on the side wall 13 and on the side of the side magnet 22 facing the top wall 11 , and the two side magnets 22 are respectively attached to the side pole piece 24 .
  • the lower pole piece 25 is disposed on the side of the center magnet 21 and the side magnet 22 close to the bottom wall 12 .
  • the center magnet 21 and the side magnets 22 are used to generate a fixed magnetic field
  • the center pole piece 23, the side pole piece 24 and the lower pole piece 25 are used for magnetic conduction, so that the N and S poles of the center magnet 21 and the side magnet 22 are
  • the loop is concentrated in the gap between the center magnet 21 and the side magnet 22, so that a strong magnetic field is generated in the gap.
  • the cross section of the central magnet 21 is substantially rectangular.
  • the side magnets 22 are substantially L-shaped, and the side pole pieces 24 are substantially hollow plate-shaped.
  • a mounting block 133 is also provided on the side wall 13 .
  • the mounting block 133 is used to limit the setting position of the side pole piece 24 .
  • a limiting block 134 is provided on the side of the mounting block 133 facing away from the side wall 13 .
  • the limiting block 134 is disposed on the side of the mounting block 133 close to the top wall 11 , and the limiting block 134 is used to limit the setting height of the side pole piece 24 .
  • the side pole piece 24 is disposed on the side wall 13 through the mounting block 133 , and is limited by the limiting block 134 to a side of the limiting block 134 away from the top wall 11 .
  • the center pole piece 23 , the side pole piece 24 and the lower pole piece 25 are iron pieces, but not limited thereto, the center pole piece 23 , the side pole piece 24 and the lower pole piece 25 can also be used Made of magnetic conductive materials such as silicon steel.
  • the vibration component 30 includes a voice coil 31 , a diaphragm 32 , a dome 33 , a secondary diaphragm 34 and a flexible circuit board 35 .
  • the voice coil 31 is sleeved outside the central magnet 21 .
  • the voice coil 31 is located in the accommodating cavity 14 and is disposed in the gap formed between the center magnet 21 and the side magnets 22 .
  • the voice coil 31 is used to receive an electrical signal (alternating audio current), so as to move under force in the fixed magnetic field formed by the magnetic circuit assembly 20 .
  • the inner circumference of the diaphragm 32 is respectively connected with the voice coil 31 , and the outer circumference is respectively connected with the top wall 11 .
  • the diaphragm 32 is used to vibrate with the movement of the voice coil 31 to push the air to produce sound.
  • the spherical top 33 is attached to the inner circumference of the diaphragm 32 .
  • the auxiliary diaphragm 34 is disposed on the side of the voice coil 31 away from the diaphragm 32 .
  • One side of the auxiliary diaphragm 34 is connected to the voice coil 31 , and the other side is connected to the side pole piece 24 . .
  • the auxiliary diaphragm 34 is used to ensure the balance of vibration and reduce swing when the voice coil 31 and the diaphragm 32 have large amplitudes, thereby preventing the voice coil 31 from rolling.
  • the flexible circuit board 35 is connected to the basin frame 10 and the voice coil 31 , and is located between the auxiliary diaphragm 34 and the diaphragm 32 .
  • One side of the flexible circuit board 35 is connected to the voice coil 31 , and the other side is connected to the bottom wall 12 .
  • the flexible circuit board 35 is used to provide electrical signals to the voice coil 31 to control the movement of the voice coil 31 .
  • the voice coil 31 is an annular structure
  • the diaphragm 32 is substantially annular
  • the dome 33 is substantially rectangular.
  • the voice coil 31 includes a top surface 311 on a side close to the top wall 11 and a bottom surface 312 on a side close to the bottom wall 12 .
  • the diaphragm 32 includes a first connecting portion 321 , a second connecting portion 322 and a sounding portion 323 .
  • the first connecting portion 321 is connected to the top surface 311 and can move with the movement of the voice coil 31 .
  • the second connecting portion 322 is connected to the top wall 11 .
  • the sounding part 323 connects the first connecting part 321 and the second connecting part 322 .
  • the section of the sound-emitting portion 323 is substantially hemispherical.
  • the dome 33 is attached to the first connecting portion 321 of the diaphragm 32 .
  • the material of the diaphragm 32 is an elastic material, such as paper, animal fiber, bulletproof cloth, PP (Polypropylene, polypropylene), polyimide (Polyimide, PI), polyether ether ketone (Poly Ether Ether Ketone, PEEK) , polyethylene naphthalate (Polyethylene Naphthalate, PEN), polyetherimide (Polyetherimide, PEI), polyurethane (Polyurethane, PU), thermoplastic elastomer (Thermoplastic Elastomer, TPE), thermoplastic polyester One of Ester Elastomer (TPEE), silicone or rubber material and breathable mesh.
  • PP Polypropylene, polypropylene
  • polyimide Polyimide, PI
  • polyether ether ketone Poly Ether Ether Ketone, PEEK
  • polyethylene naphthalate Polyethylene Naphthalate, PEN
  • polyetherimide Polyetherimide
  • PEI polyurethane
  • PU thermoplastic elast
  • the vibrating assembly 30 includes the two sub-diaphragms 34 that are symmetrical with the center.
  • the secondary diaphragm 34 includes a third connection portion 341 , a fourth connection portion 342 and a balance portion 343 .
  • the third connecting portion 341 is connected to the bottom surface 312 .
  • the fourth connecting portion 342 is connected to the side of the side pole piece 24 facing away from the mounting block 133 .
  • the balance part 343 connects the third connection part 341 and the fourth connection part 342 .
  • the cross section of the balance portion 343 is substantially hemispherical, and its protruding direction is opposite to the protruding direction of the sounding portion 323 .
  • the sub-diaphragm 34 is substantially in the shape of a long sheet, and the middle portion is convex toward one side.
  • the secondary diaphragm 34 and the diaphragm 32 are made of the same material. It is understandable that the material used for the secondary diaphragm 34 may also be different from the material used for the diaphragm 32 .
  • the flexible circuit board 35 includes a vibrating part 351 , a fixing part 352 and a bending part 353 .
  • the vibration part 351 is connected to the top surface 311 of the voice coil 31 and can move with the movement of the voice coil 31 .
  • the fixing portion 352 is connected to the mounting block 133 for fixing the flexible circuit board 35 .
  • the bending portion 353 connects the vibrating portion 351 and the fixing portion 352 .
  • the bent portion 353 has a certain elasticity.
  • the voice coil 31 further includes a washer 313 .
  • the washer 313 matches the shape of the top surface 311 of the voice coil, and the washer 313 is disposed on the top surface 311 of the voice coil 31 .
  • the first connecting portion 321 is connected to a side of the washer 313 away from the top surface 311 .
  • the vibration assembly 30 includes two flexible circuit boards 35 arranged symmetrically in the center. The structures of the two flexible circuit boards 35 are the same, and the vibration parts 351 of the two flexible circuit boards 35 are respectively located at one corner of the voice coil 31 . department.
  • At least one of the vibration parts 351 of the flexible circuit board 35 is provided with two first pads 3511
  • the corresponding fixed part 352 is provided with two second pads 3521
  • the corresponding bending part 353 is provided with two first pads 3511 .
  • the first pad 3511 is used for electrical connection with the voice coil 31
  • the second pad 3521 is used for connection with the basin frame 10 , so that external electrical signals are transmitted through the basin frame 10 and the flexible circuit board 35 to the voice coil 31.
  • the two first pads 3511 are located on both sides of the circuit, and are respectively electrically connected to the leads (not shown) of the voice coil 31 by soldering.
  • Two third solder pads 1331 are provided on the side of the mounting block 133 on one corner of the basin frame 10 facing the top wall 11 .
  • the second pads 3521 are respectively electrically connected to the third pads 1331 by soldering.
  • a stopper 3131 is provided on the side of the washer 313 close to the top surface 311 , and the vibrating portion 351 is attached to the side of the stopper 3131 close to the top surface 311 and passes through the first pad 3511 is connected to the voice coil 31 .
  • the stopper 3131 is used to limit the position where the vibrating portion 351 is disposed, so as to prevent interference during vibration due to the proximity of the flexible circuit board 35 and the vibrating film 32 .
  • An internal circuit 19 is also provided in the basin frame 10 .
  • One side of the inner circuit 19 is connected to the third pad 1331 , and the other side extends toward the bottom wall 12 to connect the flexible circuit board 35 electrically connected to the third pad 1331 to external circuits.
  • the inner circuit 19 is formed in the basin frame 10 by injection molding, but not limited thereto, the inner circuit 19 can also be installed in the basin frame 10 through a hole provided in the basin frame 10 .
  • the two centrally symmetric flexible circuit boards 35 are located on the short side walls 132 , the side pole pieces 24 are provided with avoidance grooves 241 on the two centrally symmetric corners of the basin frame 10 , and the first pad 3511 is located at the corner of the escape groove 241 , the balance portion 343 of the auxiliary diaphragm 34 is located in the escape groove 241 , and the fourth connection portion 342 is connected to the side of the side pole piece 24 close to the escape groove 241 .
  • the two side magnets 22 are arranged on the other two corners of the side pole piece 24, and the long sides of the two L-shaped side magnets 22 are attached to the side pole piece 24 connected to the long side wall 131, And the short side avoids the first pad 3511 and the sub-diaphragm 34 .
  • Two corners of the bottom wall 12 are also provided with mounting portions 121 protruding outward.
  • the side magnets 22 and the lower pole piece 25 are designed with avoidance portions 221 and 251 at corresponding positions to avoid the mounting portions 121 .
  • the vibration part 351 is adapted to the shape of the washer 313 of the voice coil 31, and is attached to the washer 313 by means of bonding.
  • the fixing portion 352 corresponds to the shape of the mounting block 133 facing the top wall 11 , and is provided on the mounting block 133 by means of bonding, so that the fixing portion 352 is stably connected to the mounting block 133 . on the pot rack 10.
  • the magnetic induction intensity generated by the magnetic circuit assembly 20 is B, and the winding length L corresponding to the voice coil 31, when a voltage is applied to the voice coil 31 and a current i is generated, it can be
  • both positive and negative electrodes can pass through the two first pads 3511 of the vibration part 351 of one flexible circuit board 35 , and pass through the basin.
  • the internal circuit 19 in the frame 10 is led out to one corner of the pot frame 10, so that when the pot frame 10 is communicated with the flexible circuit board 35, it is not necessary to connect the two corners of the pot frame 10, and it is only necessary to connect the pot frame 10 from one corner.
  • the positive and negative circuits can be drawn out, so that the influence of the internal circuit 19 in the basin frame 10 on the external dimension of the speaker 100 is reduced, the size of the basin frame 10 can be increased, the area and volume of the magnetic circuit assembly 20 can be increased, and the magnetic induction intensity B can be increased. , so that the power conversion coefficient of the speaker 100 is improved, so that the external performance of the speaker 100 can be increased, and a better sound effect can be obtained.
  • the present application is not limited to the flexible circuit board 35 and the sub-diaphragm 34 with a center-symmetric design. It can be understood that, in other embodiments, four flexible circuit boards 35 can also be designed and connected to one corner of the voice coil 31 respectively. Among them, at least one of the flexible circuit board 35 is designed with two parallel lines, and through the corresponding two first pads 3511 and second pads 3521, the voice coil 31 and one corner of the basin frame 10 are realized. circuit is connected.
  • Four sub-diaphragms 34 are correspondingly designed on the four corners of the basin frame 10 , and four side magnets 22 are correspondingly designed for the magnetic circuit assembly 20 .
  • the outer shape of the speaker 100 is a rectangle for illustration, but it should be understood that the outer shape of the speaker 100 may also be a regular shape or an irregular shape such as a sphere, a cylinder, a cube, etc. This is not limited, and a suitable shape can be freely selected according to the application scene of the speaker 100 .
  • the basin frame 10 , the magnetic circuit component 20 and the vibration component 30 included in the speaker 100 can be adjusted according to the shape of the speaker 100 .
  • the present application also proposes a terminal device, where the terminal device is provided with the above-mentioned speaker 100 .
  • the terminal device may be an electronic device with a communication function, such as a telephone, a mobile phone, a notebook computer, a tablet computer, a Bluetooth speaker, an intelligent voice terminal, a handheld game console or a smart watch.
  • a communication function such as a telephone, a mobile phone, a notebook computer, a tablet computer, a Bluetooth speaker, an intelligent voice terminal, a handheld game console or a smart watch.

Abstract

L'invention concerne un haut-parleur, comprenant un panier, un ensemble circuit magnétique et un ensemble vibration. L'ensemble de circuit magnétique et l'ensemble de vibration sont disposés sur le panier, et l'ensemble de vibration comprend une bobine acoustique et une carte de circuit flexible, la bobine acoustique étant disposée dans le panier, et la carte de circuit flexible comprenant une partie de vibration, une partie de fixation et une partie de flexion reliant la partie de vibration et la partie de fixation, la partie de vibration étant reliée à la bobine acoustique, la partie de fixation étant reliée au panier, la partie de vibration est pourvue de deux premières plages de connexion pour être connectée électriquement à la bobine acoustique, la partie de fixation est pourvue de deux secondes plages de connexion pour être connectée au panier, la partie de flexion est pourvue de deux lignes pour connecter électriquement les premières plages de connexion et les secondes plages de connexion, il n'y a qu'une seule partie de flexion dans la carte de circuit flexible, et les deux lignes s'étendent côte à côte dans la partie de flexion. En concevant deux structures de lignes parallèles à deux chemins sur la carte de circuit flexible, les électrodes positives et négatives peuvent être conduites hors du panier au moyen de la partie de pliage, de sorte que l'effet du panier sur la dimension extérieure du haut-parleur est réduit, et le volume de l'ensemble de circuit magnétique est augmenté, améliorant ainsi la capacité de lecture externe du haut-parleur et obtenant de meilleurs effets sonores.
PCT/CN2021/139405 2020-12-30 2021-12-18 Haut-parleur et dispositif terminal WO2022143235A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202011612749.3 2020-12-30
CN202011612749.3A CN114697827B (zh) 2020-12-30 2020-12-30 扬声器及终端装置

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WO2022143235A1 true WO2022143235A1 (fr) 2022-07-07

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PCT/CN2021/139405 WO2022143235A1 (fr) 2020-12-30 2021-12-18 Haut-parleur et dispositif terminal

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WO (1) WO2022143235A1 (fr)

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CN116887145A (zh) * 2023-08-10 2023-10-13 汉得利（常州）电子股份有限公司 一种磁路结构及双面扬声器
CN117440301A (zh) * 2023-12-18 2024-01-23 瑞声光电科技(常州)有限公司 扬声器单体及电子设备

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CN209390348U (zh) * 2018-12-29 2019-09-13 瑞声科技(新加坡)有限公司 一种扬声器
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