WO2024045234A1 - 电路及发声器件 - Google Patents

电路及发声器件 Download PDF

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Publication number
WO2024045234A1
WO2024045234A1 PCT/CN2022/120076 CN2022120076W WO2024045234A1 WO 2024045234 A1 WO2024045234 A1 WO 2024045234A1 CN 2022120076 W CN2022120076 W CN 2022120076W WO 2024045234 A1 WO2024045234 A1 WO 2024045234A1
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WO
WIPO (PCT)
Prior art keywords
sound
fixed
diaphragm
frame
generating device
Prior art date
Application number
PCT/CN2022/120076
Other languages
English (en)
French (fr)
Inventor
任璋
钟志威
王奇
Original Assignee
瑞声光电科技(常州)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 瑞声光电科技(常州)有限公司 filed Critical 瑞声光电科技(常州)有限公司
Priority to US18/331,120 priority Critical patent/US20240073604A1/en
Publication of WO2024045234A1 publication Critical patent/WO2024045234A1/zh

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06—Loudspeakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • 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
    • H04R2400/00—Loudspeakers
    • H04R2400/11—Aspects regarding the frame of loudspeaker transducers

Definitions

  • the present invention relates to the field of electroacoustic conversion, and in particular, to a circuit and a sound-generating device used in portable mobile electronic products.
  • Sound-generating devices are widely used in portable mobile electronic products, such as mobile phones, to convert audio signals into sound playback.
  • the sound-generating devices are loud and have good effects on low-frequency sounds and high-frequency sounds. Circuits used to drive sound-generating devices have also become an important part of portable mobile electronic products.
  • the related art sound-generating device circuit includes multiple sound-generating devices, a power amplifier and a capacitor.
  • Figure 1 is a structural block diagram of one of the application scenarios of sound-generating devices of related technologies on terminal equipment: a power amplifier P1 is used to emit low-frequency sounds and high-frequency sounds.
  • the music signal device S1 converts music The signal is divided into two signals after passing through the power amplifier P1, one is sent directly to the woofer U1, and the other is sent to the tweeter U2 through the series capacitor C.
  • the voice signal device S2 sends the voice signal to the receiver U3.
  • FIG. 2 is a structural block diagram of another application scenario of the sound-generating device of the related technology on a terminal device: the music signal device S1 sends its music signal to the woofer U1 through the power amplifier P1, and the music signal device S2 Its music signal is sent to the woofer U2 through the series connection of the power amplifier P2 and the capacitor C.
  • the voice signal device S2 sends the voice signal to the receiver U3.
  • the woofer U, tweeter U2 and receiver U3 are three independent speakers, and the corresponding drivers are also separated, requiring at least two power amplifiers.
  • the above-mentioned technical solutions use many devices and have complex driving circuits, which are not conducive to integrated applications.
  • the object of the present invention is to provide a circuit and a sound-generating device with a small number of power amplifiers, a simple structure and a wide range of applications.
  • the present invention provides a circuit for use in a sound-generating device.
  • the circuit includes a first sound signal input terminal, a second sound signal input terminal, a power amplifier, a capacitor, a low-frequency sound-generating module and a high-frequency sound-generating module.
  • the first sound signal input terminal is used to receive a sound signal with high pitch and bass
  • the second sound signal input terminal is used to receive a speech signal
  • the first sound signal input terminal is connected to the power The positive input end of the amplifier
  • the negative input end of the power amplifier is connected to ground
  • the output end of the power amplifier is connected to the input end of the low-frequency sound module and the first end of the capacitor respectively
  • the third end of the capacitor Two ends are connected to the first input end of the high-frequency sound module
  • the second sound signal input end is connected to the second input end of the high-frequency sound module.
  • the present invention also provides a sound-generating device that applies the above-mentioned circuit provided by the present invention.
  • the sound-generating device includes a first vibration system for vibrating to emit low notes and a first vibration system for vibrating to emit high notes.
  • a second vibration system, and the second vibration system can also be used as a receiver to produce sound; wherein the output end of the power amplifier is connected to the first vibration system; the second end of the capacitor and the second The sound signal input terminals are all connected to the second vibration system.
  • the sound-generating device further includes a basin frame and a magnetic circuit system fixed to the basin frame, and the first vibration system and the second vibration system are coaxially arranged and located at opposite sides of the magnetic circuit system.
  • the first vibration system includes a first diaphragm fixed to the basin frame and a first voice coil fixed to the first diaphragm
  • the second vibration system includes a first diaphragm fixedly supported on the magnetic circuit system a second diaphragm and a second voice coil that drives the second diaphragm to vibrate and produce sound
  • the magnetic circuit system includes a first magnetic gap and a second magnetic gap, and the first magnetic gap surrounds the second magnetic gap.
  • the first voice coil is inserted in the first magnetic gap and drives the first diaphragm to vibrate to emit a low sound
  • the second voice coil is inserted in the second magnetic gap and drives The second diaphragm vibrates to emit high sound.
  • the magnetic circuit system includes a magnetic yoke, a main magnet steel group respectively fixed on the side of the yoke close to the first diaphragm, and a secondary magnet steel group surrounding the main magnet steel group.
  • the first magnetic gap is formed between the magnet group and the main magnet group, and the yoke is annular; the main magnet group includes an annular main magnet, and a cover fixed on the main magnet.
  • the main pole core and the auxiliary magnet steel are on the side away from the yoke.
  • the inner wall of the main magnet steel and the inner wall of the yoke together form an inner cavity; the main pole core includes a steel core fixed on the main magnet steel.
  • the main pole core body and the main pole core protrusion extending from the inner peripheral edge of the main pole core body into the inner cavity, and the auxiliary magnetic steel cover is fixed to the main pole core body away from the main pole core body.
  • the main magnetic steel and the magnetic yoke together surround the main pole core protruding portion, and jointly form an opening facing the second vibration system at a distance from the main pole core protruding portion.
  • the second magnetic gap; the protruding portion of the main pole core is in the shape of a hollow ring.
  • the sound-generating device further includes an annular support frame, the support frame is fixed on the side of the yoke away from the basin frame, and the peripheral support of the second diaphragm is fixed on the side of the support frame away from the support frame.
  • the magnetic circuit system and the second vibration system together form a lower cavity, and the lower cavity is connected with the second magnetic gap.
  • the second diaphragm includes a second diaphragm vibrating part spaced from the yoke, a second diaphragm ring part bent and extended from the outer peripheral edge of the second diaphragm vibrating part, and a second diaphragm ring part formed by
  • the second diaphragm connecting portion bends and extends from the second diaphragm ring portion to the support frame;
  • the second diaphragm connecting portion is fixed to the support frame;
  • the second vibration system also includes a second frame , the side of the second frame close to the magnetic circuit system is fixed to the second voice coil, and the side of the second frame away from the magnetic circuit system is fixed to the second diaphragm vibration part.
  • the second frame includes an annular first fixing part, an elastic arm bent and extended from the inside of the first fixing part, and an elastic arm extending away from the first fixing part.
  • the second fixing part, the second diaphragm connecting part and the support frame are respectively fixed on opposite sides of the first fixing part, the second diaphragm vibrating part and the second voice coil are respectively fixed On opposite sides of the second fixing part;
  • the secondary magnet steel group includes a secondary magnet steel fixed to the yoke and a secondary pole core fixed to the side of the secondary magnet steel away from the yoke.
  • the second frame also includes a third fixing portion bent and extended from the outside of the first fixing portion toward the direction of the basin frame; the secondary pole core is fixed to the basin frame, and the third fixing portion is fixed to On the side of the secondary pole core away from the basin frame; the basin frame is rectangular; the secondary pole cores include two, and the two secondary pole cores are located on opposite sides of the long axis of the basin frame. side.
  • the first diaphragm is annular, the inner peripheral side of the first diaphragm is fixed to the auxiliary magnet, and the outer peripheral side of the first diaphragm is fixed to the basin frame.
  • the first vibration system further includes a ring-shaped first frame, and the first voice coil is fixed on a side of the first frame close to the magnetic circuit system;
  • the first diaphragm includes a ring-shaped first frame.
  • An annular first folding ring and an annular second folding ring the first folding ring is arranged around the second folding ring and is spaced apart from the first folding ring, the second folding ring surrounds the An auxiliary magnet is provided, the inner circumferential side of the second folding ring is fixed to the outside of the auxiliary magnet, the first frame serves as the spherical top of the first diaphragm, and its outer circumferential side is fixed to the first The inner peripheral side of the folding ring is fixed to the outer peripheral side of the second folding ring, and the outer peripheral side of the first folding ring is fixed to the basin frame.
  • the first frame includes an annular first section, a second section bent and extended from the inner circumference of the first section towards the first voice coil, and an inner section of the first section.
  • a third section is bent and extended on the circumferential side in the direction of the yoke; the first voice coil is fixed on the side of the second section close to the yoke, and the second section is away from the side of the yoke.
  • One side is fixed to the outer peripheral side of the second folding ring;
  • the first vibration system also includes an elastic support component spaced apart from the first folding ring. One end of the elastic support component is fixed to the basin frame, and the other end of the elastic support component is fixed to the third section. .
  • the circuit of the present invention is applied to the sound-generating device, and is connected to the positive input end of the power amplifier through the first sound signal input end with treble and bass, and is then divided into two parts, treble and bass through the power amplifier.
  • signal, the separated bass signal is directly input to the low-frequency sound-generating module for sound generation, and the separated treble signal is input to the high-frequency sound-generating module after being connected in series with the capacitor.
  • This structure allows the low-frequency sound module to emit bass, and the high-frequency sound module to emit high pitch.
  • the voice signal is input to the second input terminal of the high-frequency sound module through the second sound signal input terminal.
  • the low-frequency sound module of the present invention When the high-frequency sound module of the present invention is used as a receiver, the low-frequency sound module can be used as a receiver. It is an anti-phase silencing device. At the same time, the circuit of the present invention only needs one power amplifier to realize a variety of application functions, making the structure simple and widely used.
  • Figure 1 is a structural block diagram of one of the application scenarios of the circuit of the related technology on a terminal device
  • Figure 2 is a structural block diagram of another application scenario of a related technology circuit on a terminal device
  • Figure 3 is a schematic diagram of the circuit structure of the circuit of the present invention.
  • Figure 4 is a schematic three-dimensional structural diagram of the sound-generating device of the present invention.
  • Figure 5 is an exploded schematic diagram of a partial three-dimensional structure of the sound-generating device of the present invention.
  • Figure 6 is an exploded schematic diagram of a partial three-dimensional structure of the sound-generating device of the present invention from another angle;
  • Figure 7 is a cross-sectional view along line A-A in Figure 4.
  • Figure 8 is an enlarged view of the part shown as B in Figure 7;
  • Figure 9 is a schematic assembly diagram of the three-dimensional structure of the main magnet, the auxiliary magnet group and the first voice coil of the sound-generating device of the present invention.
  • Figure 10 is a schematic assembly diagram of the three-dimensional structure of the yoke, the main pole core protrusion and the second voice coil of the sound-generating device of the present invention
  • Figure 11 is a schematic three-dimensional structural diagram of the main magnet group of the sound-generating device of the present invention.
  • the present invention provides a circuit 200 and a sound-generating device 100.
  • the circuit 200 is applied to the sound-generating device 100.
  • the circuit 200 includes a first sound signal input terminal IN1, a second sound signal input terminal S2, a power amplifier 201, a capacitor 202, a low-frequency sound module 101 and a high-frequency sound module 102.
  • the first sound signal input terminal IN1 is used to receive sound signals with high pitch and low pitch. For example, a music signal.
  • the second sound signal input terminal IN2 is used for receiving voice signals.
  • the low-frequency sound emitting module 101 is used to emit low-frequency sound.
  • the high-frequency sound emitting module 102 is used to emit high-frequency sounds and can be used as a receiver to emit sounds.
  • FIG. 3 is a schematic diagram of the circuit structure of the circuit 200 of the present invention.
  • the circuit connection relationship of the circuit 200 is:
  • the first sound signal input terminal IN1 is connected to the positive input terminal of the power amplifier 201 .
  • the negative input terminal of the power amplifier 201 is connected to ground.
  • the output terminal of the power amplifier 201 is respectively connected to the input terminal of the low-frequency sound module 101 and the first terminal of the capacitor.
  • the second end of the capacitor is connected to the first input end of the high-frequency sound module 102 ; the second sound signal input terminal IN2 is connected to the second input end of the high-frequency sound module 102 .
  • the working principle of the circuit 200 is:
  • the first sound signal input terminal IN1 divides the music signal with treble and bass through the power amplifier 201 into two signals, and one signal is directly sent to the input terminal of the low-frequency sound module 101 for the low-frequency sound module 101 to emit
  • the other channel passes through the series capacitor 202 and is sent to the first input end of the high-frequency sound module 102 for the high-frequency sound module 102 to emit high-frequency sound.
  • the second sound signal input terminal IN2 directly sends the voice signal to the second input terminal of the high-frequency sound module 102 .
  • the high-frequency sound-emitting module 102 is used as a receiver
  • the low-frequency sound-emitting module 101 can be used as an anti-phase silencing device. Therefore, the circuit 200 of the present invention only needs one power amplifier to realize a variety of application functions, making the structure simple and widely used.
  • the present invention also provides the sound-generating device 100 using the circuit 200.
  • the sound-generating device 100 includes a basin frame 10 and a first vibration system 20 for vibrating to emit low notes, a second vibration system 30 for vibrating to emit high notes, and a magnetic circuit system 40 respectively fixed to the basin frame 10 .
  • the first vibration system 20 and the second vibration system 30 are coaxially arranged and located on opposite sides of the magnetic circuit system 40 respectively.
  • This structure allows the second vibration system 30 to be arranged on the opposite side of the first vibration system 20 to produce sound, and enables the first vibration system 20 and the second vibration system 30 to realize coaxial full-frequency sound generation, so that the acoustic effect of the circuit 200 of the present invention is good. .
  • the second vibration system 30 can also be used as a receiver to produce sound.
  • the second vibration system 30 and the magnetic circuit system 40 cooperate as a receiver, so that the speaker formed by the first vibration system 10 and the magnetic circuit system 40 can serve as an anti-phase silencing device.
  • the first vibration system 20 and the magnetic circuit system 40 form the low-frequency sound module 101 .
  • the second vibration system 30 and the magnetic circuit system 40 form the high-frequency sound module 102 .
  • the circuit connection relationship of the circuit 200 using the sound-generating device 100 is:
  • the first sound signal input terminal IN1 is connected to the positive input terminal of the power amplifier 201; the negative input terminal of the power amplifier 201 is connected to ground.
  • the output terminal of the power amplifier 201 is connected to the first input terminal of the sound-generating device 100 and the first terminal of the capacitor 202 respectively.
  • the second terminal of the capacitor 202 is connected to the second input terminal of the sound-generating device 100 .
  • the second sound signal input terminal S2 is connected to the third input terminal of the sound-generating device 100 .
  • the first input end of the sound-generating device 100 is connected to the first vibration system 20 .
  • the second input terminal of the sound-generating device 100 and the third input terminal of the sound-generating device 100 are both connected to the second vibration system 30 .
  • the working principle of the circuit 200 using the sound-generating device 100 is:
  • the first sound signal input terminal IN1 divides the music signal with treble and bass into two signals through the power amplifier 201, and sends one signal directly to the magnetic circuit system 40 and the second vibration system 20 in the sound-generating device 100.
  • the other path of the formed woofer passes through the series capacitor 202 and is sent to the tweeter formed by the magnetic circuit system 40 and the second vibration system 30 in the sound-generating device 100 .
  • the second sound signal input terminal IN2 directly sends the voice signal to the tweeter formed by the magnetic circuit system 40 and the second vibration system 30 in the sound-generating device 100 .
  • the first vibration system 20 and the magnetic circuit system 40 to form a speaker can be used as an anti-phase silencing device. Therefore, the circuit 200 of the present invention only needs one power amplifier to realize a variety of application functions, making the structure simple and widely used.
  • the sound-generating device 100 includes the basin frame 10, the first vibration system 20 and the second vibration system respectively fixed to the basin frame 10. 30.
  • the basin frame 1 is ring-shaped.
  • the first vibration system 20 includes a first diaphragm 1 fixed on the basin frame 10 , a first voice coil 201 fixed on the first diaphragm 1 , an annular first frame 2 and an elastic support component. 202.
  • the first voice coil 201 is fixed on the side of the first frame 2 close to the magnetic circuit system 40 .
  • the second vibration system 30 is spaced apart from the side of the magnetic circuit system 40 away from the first vibration system 20 .
  • the second vibration system 30 includes a second diaphragm 3 fixedly supported on the magnetic circuit system 40 , a second voice coil 301 that drives the second diaphragm 3 to vibrate and produce sound, and a second frame 4 .
  • the magnetic circuit system 40 includes a magnetic yoke 5 , a main magnet steel group 6 respectively fixed on the side of the yoke 5 close to the first diaphragm 1 , and an auxiliary magnet steel group 7 surrounding the main magnet steel group 6 . .
  • the magnetic yoke 5 is annular.
  • the second diaphragm 3 is spaced apart from the yoke 5 .
  • the main magnet group 6 includes an annular main magnet 61 and a main pole core 62 fixed to the side of the main magnet 61 away from the yoke 5 .
  • the inner wall of the main magnet 61 and the inner wall of the yoke 5 together form an inner cavity 402 .
  • the magnetic circuit system 40 includes a first magnetic gap 401 and a second magnetic gap 403.
  • the first magnetic gap 401 is arranged around the second magnetic gap 403.
  • a second magnetic gap 403 is provided on the side of the magnetic circuit system 40 away from the first vibration system 20 .
  • the main pole core 62 includes a main pole core body 621 fixed on the main magnetic steel 61 and a main pole core bent and extended from the inner periphery of the main pole core body 621 into the inner cavity 402 . Projection 622.
  • the main magnet 61 and the yoke 5 together surround the main pole core protruding portion 622 and are spaced apart from the main pole core protruding portion 622 to form an opening toward the second vibration system 30 Second magnetic gap 403.
  • the second voice coil 301 is inserted into the second magnetic gap 403 and drives the second diaphragm 3 to vibrate and produce sound, so that the second vibration system 30 and the magnetic circuit system 40 form a tweeter, achieving
  • the sound-generating device 100 provides a high-pitched sound effect function and can be used as a receiver, so that the circuit 200 has a simple structure and is widely used.
  • the auxiliary magnet steel group 7 is spaced apart from the main magnet steel group 6 to form the first magnetic gap 401 .
  • the first voice coil 201 is inserted in the first magnetic gap 401 and drives the first diaphragm 1 to vibrate and produce sound.
  • This structure allows the first voice coil 201 of the first vibration system 20 to be inserted into the first magnetic gap 401 and drive the first diaphragm 1 to vibrate to emit low-frequency sound, thereby making the first vibration system 20 and the magnetic circuit system 40 forms a woofer, enabling the sound-emitting device 100 to provide a bass sound effect function, thereby making the circuit 200 have good acoustic performance and be widely used.
  • the second diaphragm 3 and the first diaphragm 1 are respectively disposed on opposite sides of the sound-generating device 100 .
  • the second voice coil 301 and the first voice coil 201 are coaxially arranged. This structure allows the second vibration system 30 of the tweeter to be disposed on the opposite side of the first vibration system 20 of the woofer to produce sound, and enables the first vibration system 20 and the second vibration system 30 to achieve coaxial full-band sound generation. As a result, the sound-generating device 100 of the present invention has good acoustic performance.
  • the woofer formed by the first vibration system 20 and the magnetic circuit system 40 can be used as an anti-phase silencing device.
  • the invented circuit 200 only needs one power amplifier to realize a variety of application functions, thereby making the circuit 200 simple in structure and widely used.
  • the main pole core 62 is provided with a middle hole 620 penetrating through the main pole core body 621 and the main pole core protruding portion 622 in sequence.
  • a middle hole 620 is provided to form a hollow main pole core 62.
  • the main pole core protrusion 622 extends to the inner cavity 402 so that the middle hole 620 communicates with the inner cavity 402 to form a large cavity.
  • the high-frequency performance of the sound-generating device 100 is improved. This structure is conducive to improving the acoustic performance of the tweeter formed by the second vibration system 30 and the magnetic circuit system 40, and the acoustic performance when used as a receiver.
  • the magnetic field of the main magnet steel group 6 is strengthened.
  • the main magnet assembly 6 also includes an auxiliary magnet 63 that is covered and fixed on the side of the main pole core body 621 away from the yoke 5 .
  • the auxiliary magnet 63 seals the middle hole 620, so that the second vibration system 30 and the magnetic circuit system 40 form a tweeter with good acoustic performance, and have good acoustic performance when used as a receiver.
  • the first diaphragm 1 is annular.
  • the inner peripheral side of the first diaphragm 1 is fixed to the auxiliary magnet 63 .
  • the outer peripheral side of the first diaphragm 1 is fixed to the frame 10 .
  • the first diaphragm 1 includes an annular first folding ring 11 and an annular second folding ring 12 .
  • the first folding ring 11 is arranged around the second folding ring 12 and is spaced apart from the first folding ring 11 .
  • the second folding ring 12 is arranged around the auxiliary magnet 63 .
  • the inner peripheral side of the second folding ring 12 is fixed to the outer side of the auxiliary magnet 63 .
  • the first frame 2 serves as the dome of the first diaphragm 1 .
  • the outer circumferential side of the first frame 2 is fixed to the inner circumferential side of the first folding ring 11 .
  • the inner circumference of the first frame 2 The side is fixed to the outer peripheral side of the second folding ring 12 .
  • the outer peripheral side of the first folding ring 11 is fixed to the basin frame 10 . This structure allows the thickness of the sound-generating device 100 of the present invention to reuse the height of the magnetic circuit system 40.
  • the first diaphragm 1 of the first vibration system 20 is disposed outside the auxiliary magnet 63, reducing the first vibration system 20 and
  • the woofer of the magnetic circuit system 40 occupies the thickness of the sound-emitting device 100 and increases the size of the woofer, thereby improving the acoustic performance of the sound-emitting device 100 in terms of bass, thereby making the circuit 200 have good acoustic performance and be widely used.
  • the side of the first frame 2 close to the magnetic circuit system 40 is fixed to the first voice coil 201 .
  • the first frame 2 includes an annular first section 21, a second section 22 bent and extended from the inner circumference of the first section 21 toward the first voice coil 201, and a second section 22 extending from the inner circumference of the first section 21.
  • the inner peripheral side of the first section 21 is bent toward a third section 23 extending in the direction of the yoke 5 .
  • the first voice coil 201 is fixed on the side of the second section 22 close to the yoke 5 .
  • the side of the second section 22 away from the yoke 5 is fixed to the outer peripheral side of the second folding ring 12 .
  • the structure of the first frame 2 is conducive to making the thickness of the sound-generating device 100 small and at the same time increasing the size of the woofer, thereby improving the acoustic performance of the sound-generating device 100 in terms of bass, thereby making the circuit 200 have good acoustic performance and be widely used. .
  • the first vibration system 20 further includes an elastic support component 202 spaced apart from the first folding ring 11 .
  • One end of the elastic support component 202 is fixed to the basin frame 10 .
  • the other end of the elastic support component 202 is fixed to the third section 23 .
  • the elastic support component 202 is used to enhance the vibration effect of the first diaphragm 1 and improve the acoustic performance of the sound-generating device 100; on the other hand, it is used to balance the swing of the first vibration system 20 and improve the overall vibration.
  • the stability of the sound-generating device 100 is described, so that the sound-generating device 100 has good acoustic performance and is widely used.
  • the basin frame 10 is rectangular.
  • the elastic support assembly 202 includes two.
  • the two elastic support assemblies 202 are respectively located on opposite sides of the short axis of the basin frame 10 .
  • the two symmetrically distributed elastic support components 202 support the first voice coil 201 more stably and have better vibration reliability.
  • the sound-generating device 100 further includes an annular support frame 60 .
  • the support frame 60 is fixed to the side of the yoke 5 away from the basin frame 10 .
  • the peripheral edge of the second diaphragm 3 is supported and fixed on the side of the support frame 60 away from the yoke 5 .
  • the magnetic circuit system 40 and the second vibration system 30 together form a lower cavity 404 .
  • the lower cavity 404 is connected with the second magnetic gap 403 .
  • the support frame 60 is provided with a leakage hole 600 passing through it.
  • the lower cavity 404 is connected to the outside world through the leak hole 600 .
  • the arrangement of the leak hole 600 is conducive to balancing the air pressure between the lower cavity 404 and the outside world, thereby improving the acoustic performance of the tweeter formed by the magnetic circuit system 40 and the second vibration system 30, and making it easier to convert it into a receiver.
  • the sound-generating device 100 has good acoustic performance and is widely used.
  • the second diaphragm 3 includes a second diaphragm vibrating part 31 spaced apart from the yoke 5 , and a second diaphragm bent and extended from the outer peripheral edge of the second diaphragm vibrating part 31
  • the folding ring portion 32 and the second diaphragm connecting portion 33 are bent and extended from the second diaphragm folding ring portion 32 toward the support frame 60 .
  • the second diaphragm connecting part 33 is fixed to the support frame 60 .
  • the side of the second frame 4 close to the magnetic circuit system 40 is fixed to the second voice coil 301 .
  • the side of the second frame 4 away from the magnetic circuit system 40 is fixed to the second diaphragm vibration part 31 .
  • the second frame 4 includes an annular first fixing part 41 , an elastic arm 42 bent and extended from the inner side of the first fixing part 41 , and an elastic arm 42 extending away from the first fixing part 41 .
  • the first fixing part 41 extends from the second fixing part 43 .
  • the second diaphragm connecting part 33 and the supporting frame 60 are respectively fixed on opposite sides of the first fixing part 41 .
  • the second diaphragm vibrating part 31 and the second voice coil 301 are respectively fixed on opposite sides of the second fixing part 43 .
  • the structure of the second frame 4 fixes the second diaphragm 3 to the support frame 60 and the second voice coil 301 respectively, and is conducive to the elasticity of the elastic arm 42 of the second frame 4.
  • the vibration effect of the second diaphragm vibrating part 31 is enhanced and the reliability of the second diaphragm vibrating part 31 is improved, thereby improving the stability and acoustic performance of the sound-generating device 100, thereby improving the acoustic performance of the circuit 200. Good performance and wide application.
  • the secondary magnet steel group 7 includes a secondary magnet steel 71 fixed to the yoke 5 and a secondary pole core 72 fixed to the side of the secondary magnet steel 71 away from the yoke 5 .
  • the second frame 4 further includes a third fixing part 44 that is bent and extended from the outer side of the first fixing part 41 toward the direction of the basin frame 10 .
  • the auxiliary pole core 72 is fixed to the frame 10 .
  • the third fixing part 44 is fixed on the side of the auxiliary pole core 72 away from the frame 10 .
  • the basin frame 10 is in a rectangular shape.
  • the secondary pole core 72 includes two.
  • the two secondary pole cores 72 are respectively located on opposite sides of the long axis of the basin frame 10 . This structure facilitates the fixation of the second diaphragm 3 to the frame 10 , thereby improving the stability and acoustic performance of the sound-generating device 100 .
  • the front cover 50 is fixed to the second diaphragm 3 and together with the second diaphragm 3 forms a front sound cavity 51 .
  • the front cover 50 is provided with a front sound hole 52 passing through it.
  • the front sound cavity 51 communicates with the outside through the front sound hole 52 .
  • the structure of the front sound cavity 51 is conducive to improving the effect of the second diaphragm 3 in emitting high-frequency sounds.
  • the front cover 50 protects the second diaphragm 3 from external damage, which is beneficial for use as a receiver, thereby improving the stability and acoustic performance of the sound-emitting device 100, thereby making the circuit 200 have good acoustic performance and be widely used. .
  • the circuit of the present invention is applied to the sound-generating device, and is connected to the positive input end of the power amplifier through the first sound signal input end with treble and bass, and is then divided into two parts, treble and bass through the power amplifier.
  • signal, the separated bass signal is directly input to the low-frequency sound-generating module for sound generation, and the separated treble signal is input to the high-frequency sound-generating module after being connected in series with the capacitor.
  • This structure allows the low-frequency sound module to emit bass, and the high-frequency sound module to emit high pitch.
  • the voice signal is input to the second input terminal of the high-frequency sound module through the second sound signal input terminal.
  • the low-frequency sound module of the present invention When the high-frequency sound module of the present invention is used as a receiver, the low-frequency sound module can be used as a receiver. It is an anti-phase silencing device. At the same time, the circuit of the present invention only needs one power amplifier to realize a variety of application functions, making the structure simple and widely used.

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Abstract

本发明提供了一种电路，其包括第一声音信号输入端、第二声音信号输入端、功率放大器、电容以及低频发声模块和高频发声模块，第一声音信号输入端用于接收具有高音和低音的声音信号，第二声音信号输入端用于接收语音信号；第一声音信号输入端连接至功率放大器的正输入端；功率放大器的负输入端连接至接地；功率放大器的输出端分别连接至低频发声模块的输入端和电容的第一端；电容的第二端连接至高频发声模块的第一输入端；第二声音信号输入端连接至高频发声模块的第二输入端。本发明还提供了一种应用如本发明提供上述的电路的发声器件。与相关技术相比，采用本发明的技术方案的功率放大器数量少、结构简单且应用广泛。

Description

电路及发声器件 技术领域
本发明涉及电声转换领域，尤其涉及一种运用于便携式移动电子产品的电路和发声器件。
 背景技术
发声器件广泛运用于便携式移动电子产品中，比如手机，实现将音频信号转化为声音播放，发声器件响度大，低频声音和高频声音的效果好。用于驱动发声器件的电路也成为便携式移动电子产品重要的部分。
相关技术的发声器件电路包括多个发声器件、功率放大器和电容。
然而，相关技术的发声器件电路在终端设备应用上需要多个发声器件，例如手机上需要多个发声器件实现发出低频声音、发出高频声音以及作为受话器使用。请参考图1，图1为相关技术的发声器件在终端设备上其中一个应用场景的结构框图：采用一个功率放大器P1实现发出低频声音、发出高频声音，具体应用上，音乐信号设备S1将音乐信号通过功率放大器P1后分成两路信号，一路直接发送至低音扬声器U1，另一路通过串联电容C后发送至高音扬声器U2，另外，语音信号设备S2将语音信号发送至受话器U3。该应用场景的高音扬声器U2和受话器U3为两个独立的扬声器，相应的驱动也是分离的。请参考图2，图2为相关技术的发声器件在终端设备上另一个应用场景的结构框图：音乐信号设备S1将其的音乐信号通过功率放大器P1后发送至低音扬声器U1，音乐信号设备S2将其的音乐信号通过依次串联功率放大器P2和电容C后发送至低音扬声器U2，语音信号设备S2将语音信号发送至受话器U3。该应用场景的低音扬声器U、高音扬声器U2和受话器U3为三个独立的扬声器，相应的驱动也是分离的，至少需要两个功率放大器。上述的技术方案采用的器件多，驱动电路复杂，不利于集成应用。
因此，有必要提供一种新的电路和发声器件解决上述技术问题。
 技术问题
本发明的目的在于提供一种功率放大器数量少、结构简单且应用广泛的电路和发声器件。
 技术解决方案
为了达到上述目的，第一方面，本发明提供了一种电路，应用于发声器件，所述电路包括第一声音信号输入端、第二声音信号输入端、功率放大器、电容以及低频发声模块和高频发声模块，所述第一声音信号输入端用于接收具有高音和低音的声音信号，所述第二声音信号输入端用于接收语音信号；所述第一声音信号输入端连接至所述功率放大器的正输入端；所述功率放大器的负输入端连接至接地；所述功率放大器的输出端分别连接至所述低频发声模块的输入端和所述电容的第一端；所述电容的第二端连接至所述高频发声模块的第一输入端；所述第二声音信号输入端连接至所述高频发声模块的第二输入端。
第二方面，本发明还提供了一种发声器件，所述发声器件应用如本发明提供的上述的电路，所述发声器件包括用于振动发出低音的第一振动***和用于振动发出高音的第二振动***，同时所述第二振动***还可作为受话器功能发声使用；其中，所述功率放大器的输出端连接至所述第一振动***；所述电容的第二端和所述第二声音信号输入端均连接至所述第二振动***。
优选的，所述发声器件还包括盆架和固定于所述盆架的磁路***，所述第一振动***和所述第二振动***同轴设置并分别位于所述磁路***的相对两侧；所述第一振动***包括固定于所述盆架的第一振膜和固定于所述第一振膜的第一音圈；所述第二振动***包括固定支撑于所述磁路***的第二振膜和驱动所述第二振膜振动发声的第二音圈；所所述磁路***包括第一磁间隙和第二磁间隙，所述第一磁间隙环绕所述第二磁间隙设置；所述第一音圈插设于所述第一磁间隙内并驱动所述第一振膜振动发出低声，所述第二音圈插设于所述第二磁间隙内并驱动所述第二振膜振动发出高声。
优选的，所述磁路***包括磁轭、分别固定于所述磁轭靠近所述第一振膜一侧的主磁钢组和环绕所述主磁钢组的副磁钢组，所述副磁钢组与所述主磁钢组间隔形成所述第一磁间隙，所述磁轭呈环状；所述主磁钢组包括呈环状的主磁钢、盖设固定于所述主磁钢远离所述磁轭一侧的主极芯以及辅助磁钢，所述主磁钢的内壁与所述磁轭的内壁共同围成内腔；所述主极芯包括固定于所述主磁钢的主极芯本体和由所述主极芯本体的内周缘弯折延伸至所述内腔内的主极芯凸出部，所述辅助磁钢盖设固定于所述主极芯本体远离所述磁轭一侧；所述主磁钢和所述磁轭共同环绕所述主极芯凸出部，并共同与所述主极芯凸出部间隔形成开口朝向所述第二振动***的所述第二磁间隙；所述主极芯凸出部呈中空的环状。
优选的，所述发声器件还包括呈环状的支撑架，所述支撑架固定于所述磁轭远离所述盆架一侧，所述第二振膜的周缘支撑固定于所述支撑架远离所述磁轭的一侧；所述磁路***和所述第二振动***共同围成下腔，所述下腔与所述第二磁间隙连通。
优选的，所述第二振膜包括与所述磁轭间隔的第二振膜振动部、由所述第二振膜振动部的外周缘弯折延伸的第二振膜折环部以及由所述第二振膜折环部向所述支撑架弯折延伸的第二振膜连接部；所述第二振膜连接部固定于所述支撑架；所述第二振动***还包括第二骨架，所述第二骨架靠近所述磁路***的一侧固定于所述第二音圈，所述第二骨架远离所述磁路***的一侧固定于所述第二振膜振动部。
优选的，所述第二骨架的包括呈环状的第一固定部、由所述第一固定部的内侧弯折延伸的弹臂以及由所述弹臂向远离所述第一固定部延伸的第二固定部，所述第二振膜连接部和所述支撑架分别固定于所述第一固定部的相对两侧，所述第二振膜振动部和所述第二音圈分别固定于所述第二固定部的相对两侧；所述副磁钢组包括固定于所述磁轭的副磁钢和盖设固定于所述副磁钢远离所述磁轭一侧的副极芯；所述第二骨架还包括由第一固定部的外侧向所述盆架的方向弯折延伸的第三固定部；所述副极芯固定于所述盆架，所述第三固定部固定于所述副极芯远离所述盆架的一侧；所述盆架呈矩形；所述副极芯包括两个，两个所述副极芯分别位于所述盆架的长轴的相对两侧。
优选的，所述第一振膜呈环状，所述第一振膜的内周侧固定于所述辅助磁钢，第一振膜的外周侧固定于所述盆架。
优选的，所述第一振动***还包括呈环状的第一骨架，所述第一音圈固定于所述第一骨架靠近所述磁路***的一侧；所述第一振膜包括呈环状的第一折环和呈环状的第二折环，所述第一折环绕所述第二折环设置并与所述第一折环相互间隔，所述第二折环环绕所述辅助磁钢设置，所述第二折环的内周侧固定于所述辅助磁钢的外侧，所述第一骨架充当所述第一振膜的球顶，其外周侧固定于所述第一折环的内周侧，其内周侧固定于所述第二折环的外周侧，所述第一折环的外周侧固定于所述盆架。
优选的，所述第一骨架包括呈环状的第一段、由所述第一段的内周侧向所述第一音圈弯折延伸的第二段以及由所述第一段的内周侧向所述磁轭的方向弯折延伸的第三段；所述第一音圈固定于所述第二段靠近所述磁轭的一侧，所述第二段远离所述磁轭的一侧固定于所述第二折环的外周侧；
所述第一振动***还包括与所述第一折环间隔设置弹性支撑组件，所述弹性支撑组件的一端固定于所述盆架，所述弹性支撑组件的另一端固定于所述第三段。
 有益效果
与相关技术相比，本发明的电路中，应用于发声器件，通过具有高音和低音的第一声音信号输入端连接至所述功率放大器的正输入端，再通过功率放大器分成高音和低音的两路信号，分出的低音信号直接输入至所述低频发声模块进行发声，分出的高音信号通过串联所述电容后输入至所述高频发声模块进行发声。该结构使得低频发声模块发出低音，高频发声模块发出高音。本发明的电路中，通过所述第二声音信号输入端将语音信号输入至高频发声模块的第二输入端，当应用本发明的高频发声模块作为受话器时，所述低频发声模块可以作为反相位消音器件，同时本发明的电路仅需要一个功率放大器就可以实现多种应用功能，使得结构简单且应用广泛。
 附图说明
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其它的附图，其中：
图1为相关技术的电路在终端设备上其中一个应用场景的结构框图；
图2为相关技术的电路在终端设备上另一个应用场景的结构框图；
图3为本发明电路的电路结构示意图。
图4为本发明发声器件的立体结构示意图；
图5为本发明发声器件的部分立体结构分解示意图；
图6为本发明发声器件的另一角度的部分立体结构分解示意图；
图7为沿图4中A-A线的剖示图；
图8为图7中B所示部分放大图；
图9为本发明发声器件的主磁钢、副磁钢组与第一音圈的立体结构组装示意图；
图10为本发明发声器件的磁轭、主极芯凸出部与第二音圈的立体结构组装示意图；
图11为本发明发声器件的主磁钢组的立体结构示意图。
 本发明的实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅是本发明的一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其它实施例，都属于本发明保护的范围。
本发明提供了一种电路200和发声器件100，所述电路200应用于所述发声器件100。
所述电路200包括第一声音信号输入端IN1、第二声音信号输入端S2、功率放大器201、电容202以及低频发声模块101和高频发声模块102。
所述第一声音信号输入端IN1用于接收具有高音和低音的声音信号。例如音乐信号。
所述第二声音信号输入端IN2用于接收语音信号。
所述低频发声模块101用于发出低频声音。
所述高频发声模块102用于发出高频声音并可作为受话器功能发声使用。
请参考图3，图3为本发明电路200的电路结构示意图。所述电路200的电路连接关系为：
所述第一声音信号输入端IN1连接至所述功率放大器201的正输入端。所述功率放大器201的负输入端连接至接地。所述功率放大器201的输出端分别连接至所述低频发声模块101的输入端和所述电容的第一端。所述电容的第二端连接至所述高频发声模块102的第一输入端；所述第二声音信号输入端IN2连接至所述高频发声模块102的第二输入端。
所述电路200的工作原理为：
所述第一声音信号输入端IN1将具有高音和低音的音乐信号通过功率放大器201后分成两路信号，一路直接发送至所述低频发声模块101的输入端，用于所述低频发声模块101发出低频声音；另一路通过串联电容202后发送至所述高频发声模块102的第一输入端，用于所述高频发声模块102发出高频声音。另外，所述第二声音信号输入端IN2将语音信号直接发送至所述高频发声模块102的第二输入端。当应用所述高频发声模块102作为受话器时，所述低频发声模块101可以作为反相位消音器件。因此，本发明的电路200仅需要一个功率放大器就可以实现多种应用功能，使得结构简单且应用广泛。
本发明还提供了一种应用所述电路200的所述发声器件100。具体的，所述发声器件100包括盆架10以及分别固定于所述盆架10的用于振动发出低音的第一振动***20、用于振动发出高音的第二振动***30和磁路***40。
其中，所述第一振动***20和所述第二振动***30同轴设置并分别位于所述磁路***40的相对两侧。该结构使得第二振动***30设置于第一振动***20的反面出声，并使得第一振动***20和第二振动***30实现同轴全频带发声，使得本发明的电路200的声学效果好。
同时所述第二振动***30还可作为受话器功能发声使用。具体的，所述第二振动***30和所述磁路***40配合可作为受话器，从而使得第一振动***10和磁路***40形成扬声器可以作为反相位消音器件。
本实施方式中，第一振动***20和所述磁路***40形成所述低频发声模块101。所述第二振动***30和所述磁路***40形成所述高频发声模块102。
本实施方式中，应用所述发声器件100的所述电路200的电路连接关系为：
所述第一声音信号输入端IN1连接至所述功率放大器201的正输入端；所述功率放大器201的负输入端连接至接地。
所述功率放大器201的输出端分别连接至所述发声器件100的第一输入端和所述电容202的第一端。
所述电容202的第二端连接至所述发声器件100的第二输入端。
所述第二声音信号输入端S2连接至所述发声器件100的第三输入端。
其中，所述发声器件100的第一输入端连接至所述第一振动***20。所述发声器件100的第二输入端和所述发声器件100的第三输入端均连接至所述第二振动***30。
本实施方式中，应用所述发声器件100的所述电路200的工作原理为：
所述第一声音信号输入端IN1将具有高音和低音的音乐信号通过功率放大器201后分成两路信号，一路直接发送至所述发声器件100中的磁路***40和所述第二振动***20形成的低音扬声器，另一路通过串联电容202后发送至所述发声器件100中的磁路***40和所述第二振动***30形成的高音扬声器。另外，所述第二声音信号输入端IN2将语音信号直接发送至所述发声器件100中的磁路***40和所述第二振动***30形成的高音扬声器。当应用所述发声器件的第二振动***30和磁路***40形成扬声器作为受话器时，第一振动***20和磁路***40形成扬声器可以作为反相位消音器件。因此，本发明的电路200仅需要一个功率放大器就可以实现多种应用功能，使得结构简单且应用广泛。
本实施方式中，请同时参考图4-11所示，所述发声器件100包括所述盆架10、分别固定于所述盆架10的所述第一振动***20、所述第二振动***30、所述磁路***40以及前盖50。
所述盆架1呈环状。
所述第一振动***20包括固定于所述盆架10的第一振膜1、固定于所述第一振膜1的第一音圈201、呈环状的第一骨架2以及弹性支撑组件202。所述第一音圈201固定于所述第一骨架2靠近所述磁路***40的一侧。
所述第二振动***30间隔设置于所述磁路***40远离所述第一振动***20的一侧。所述第二振动***30包括固定支撑于所述磁路***40的第二振膜3、驱动所述第二振膜3振动发声的第二音圈301以及第二骨架4。
所述磁路***40包括磁轭5、分别固定于所述磁轭5靠近所述第一振膜1一侧的主磁钢组6、环绕所述主磁钢组6的副磁钢组7。
所述磁轭5呈环状。所述第二振膜3与所述磁轭5间隔设置。
所述主磁钢组6包括呈环状的主磁钢61和盖设固定于所述主磁钢61远离所述磁轭5一侧的主极芯62。所述主磁钢61的内壁与所述磁轭5的内壁共同围成内腔402。
所述磁路***40包括第一磁间隙401和第二磁间隙403，所述第一磁间隙401环绕所述第二磁间隙403设置。本实施方式中，所述磁路***40远离所述第一振动***20的一侧设有第二磁间隙403。具体的，所述主极芯62包括固定于所述主磁钢61的主极芯本体621和由所述主极芯本体621的内周缘弯折延伸至所述内腔402内的主极芯凸出部622。所述主磁钢61和所述磁轭5共同环绕所述主极芯凸出部622，并共同与所述主极芯凸出部622间隔形成开口朝向所述第二振动***30的所述第二磁间隙403。所述第二音圈301插设于所述第二磁间隙403内并驱动所述第二振膜3振动发声，从而使得所述第二振动***30和磁路***40形成一个高音扬声器，实现所述发声器件100提供高音音效功能，并可以作为受话器使用，从而使得电路200的结构简单且应用广泛。
所述副磁钢组7与所述主磁钢组6间隔形成所述第一磁间隙401。所述第一音圈201插设于所述第一磁间隙401内并驱动所述第一振膜1振动发声。该结构使得第一振动***20的第一音圈201插设于所述第一磁间隙401内并驱动所述第一振膜1振动发出低频声音，从而使得第一振动***20和磁路***40形成一个低音扬声器，实现所述发声器件100提供低音音效功能，从而使得电路200的声学性能好且应用广泛。
所述第二振膜3与所述第一振膜1分别设置于所述发声器件100的相对两侧。所述第二音圈301和所述第一音圈201同轴设置。该结构使得形成的高音扬声器的第二振动***30设置于形成的低音扬声器的第一振动***20的反面出声，并使得第一振动***20和第二振动***30实现同轴全频带发声，使得本发明的发声器件100的声学性能好。当应用本发明的发声器件100的第二振动***30和磁路***40形成高音扬声器作为受话器时，第一振动***20和磁路***40形成的低音扬声器可以作为反相位消音器件，同时本发明的电路200仅需要一个功率放大器就可以实现多种应用功能，从而使得电路200的结构简单且应用广泛。
本实施方式中，所述主极芯62设有贯穿其上的中孔620，所述中孔620依次贯穿所述主极芯本体621和所述主极芯凸出部622。设有中孔620形成中空的所述主极芯62，主极芯凸出部622延伸至所述内腔402使得中孔620与所述内腔402连通形成一个大的空腔，该空腔提高了所述发声器件100的高频性能，该结构有利于提高第二振动***30和磁路***40形成高音扬声器的声学性能好，并作为受话器时的声学性能好。
本实施方式中，为加强所述主磁钢组6的磁场。所述主磁钢组6还包括盖设固定于所述主极芯本体621远离所述磁轭5一侧的辅助磁钢63。辅助磁钢63将所述中孔620进行封闭，实现第二振动***30和磁路***40形成高音扬声器的声学性能好，并作为受话器时的声学性能好。
本实施方式中，所述第一振膜1呈环状。所述第一振膜1的内周侧固定于所述辅助磁钢63。第一振膜1的外周侧固定于所述盆架10。具体的，所述第一振膜1包括呈环状的第一折环11和呈环状的第二折环12。所述第一折环11绕所述第二折环12设置并与所述第一折环11相互间隔。所述第二折环12环绕所述辅助磁钢63设置。所述第二折环12的内周侧固定于所述辅助磁钢63的外侧。所述第一骨架2充当所述第一振膜1的球顶，所述第一骨架2的外周侧固定于所述第一折环11的内周侧，所述第一骨架2的内周侧固定于所述第二折环12的外周侧。所述第一折环11的外周侧固定于所述盆架10。该结构使得本发明的发声器件100的厚度重复利用磁路***40的高度，第一振动***20的所述第一振膜1设置于所述辅助磁钢63外侧，减少第一振动***20和磁路***40的低音扬声器占用发声器件100的厚度，同时加大了低音扬声器的尺寸，从而提高发声器件100的低音方面的声学性能，从而使得电路200的声学性能好且应用广泛。
本实施方式中，所述第一骨架2靠近磁路***40一侧固定于所述第一音圈201。具体的，所述第一骨架2包括呈环状的第一段21、由所述第一段21的内周侧向所述第一音圈201弯折延伸的第二段22以及由所述第一段21的内周侧向所述磁轭5的方向弯折延伸的第三段23。所述第一音圈201固定于所述第二段22靠近所述磁轭5的一侧。所述第二段22远离所述磁轭5的一侧固定于所述第二折环12的外周侧。所述第一骨架2的结构有利于使得发声器件100的厚度小，同时加大了低音扬声器的尺寸，从而提高发声器件100的低音方面的声学性能，从而使得电路200的声学性能好且应用广泛。
本实施方式中，所述第一振动***20还包括与所述第一折环11间隔设置弹性支撑组件202。所述弹性支撑组件202的一端固定于所述盆架10。所述弹性支撑组件202的另一端固定于所述第三段23。所述弹性支撑组件202一方面用于加强所述第一振膜1的振动效果，改善所述发声器件100的声学性能，另一方面用于平衡所述第一振动***20的摇摆，提高所述发声器件100的稳定性，从而使得发声器件100的声学性能好且应用广泛。
本实施方式中，所述盆架10呈矩形。所述弹性支撑组件202包括两个。两个所述弹性支撑组件202分别位于所述盆架10的短轴的相对两侧。对称分布的两个所述弹性支撑组件202对所述第一音圈201的支撑更稳定，振动可靠性更好。
本实施方式中，所述发声器件100还包括呈环状的支撑架60。所述支撑架60固定于所述磁轭5远离所述盆架10一侧。所述第二振膜3的周缘支撑固定于所述支撑架60远离所述磁轭5的一侧。
所述磁路***40和所述第二振动***30共同围成下腔404。所述下腔404与所述第二磁间隙403连通。
具体的，所述支撑架60设有贯穿其上的泄露孔600。所述下腔404通过所述泄露孔600与外界连通。所述泄露孔600的设置有利于平衡下腔404的与外界的气压，从而提高了磁路***40和所述第二振动***30形成的高音扬声器的声学性能，并更好转换为受话器使用，从而使得发声器件100的声学性能好且应用广泛。
本实施方式中，所述第二振膜3包括与所述磁轭5间隔的第二振膜振动部31、由所述第二振膜振动部31的外周缘弯折延伸的第二振膜折环部32以及由所述第二振膜折环部32向所述支撑架60弯折延伸的第二振膜连接部33。所述第二振膜连接部33固定于所述支撑架60。
所述第二骨架4靠近所述磁路***40的一侧固定于所述第二音圈301。所述第二骨架4远离所述磁路***40的一侧固定于所述第二振膜振动部31。具体的，所述第二骨架4的包括呈环状的第一固定部41、由所述第一固定部41的内侧弯折延伸的弹臂42以及由所述弹臂42向远离所述第一固定部41延伸的第二固定部43。
其中，所述第二振膜连接部33和所述支撑架60分别固定于所述第一固定部41的相对两侧。所述第二振膜振动部31和所述第二音圈301分别固定于所述第二固定部43的相对两侧。所述第二骨架4的结构有了将所述第二振膜3分别与所述支撑架60和所述第二音圈301固定，并利于所述第二骨架4的弹臂42的弹性，增强了所述第二振膜振动部31的振动效果和提高了所述第二振膜振动部31的可靠性，从而提高所述发声器件100的稳定性和声学性能，从而使得电路200的声学性能好且应用广泛。
本实施方式中，所述副磁钢组7包括固定于所述磁轭5的副磁钢71和盖设固定于所述副磁钢71远离所述磁轭5一侧的副极芯72。
所述第二骨架4还包括由第一固定部41的外侧向所述盆架10的方向弯折延伸的第三固定部44。
所述副极芯72固定于所述盆架10。所述第三固定部44固定于所述副极芯72远离所述盆架10的一侧。其中，由于所述盆架10呈矩形。所述副极芯72包括两个。两个所述副极芯72分别位于所述盆架10的长轴的相对两侧。该结构有利于所述第二振膜3固定于所述盆架10，从而提高了所述发声器件100的稳定性和声学性能。
所述前盖50盖设固定于所述第二振膜3并与所述第二振膜3共同围成前声腔51。所述前盖50设有贯穿其上的前声孔52。所述前声腔51通过所述前声孔52与外部连通。所述前声腔51的结构有利于提高所述第二振膜3发出高频声音的效果。所述前盖50保护了所述第二振膜3受到外部损坏，有利于作为受话器使用，从而提高了所述发声器件100的稳定性和声学性能，从而使得电路200的声学性能好且应用广泛。
与相关技术相比，本发明的电路中，应用于发声器件，通过具有高音和低音的第一声音信号输入端连接至所述功率放大器的正输入端，再通过功率放大器分成高音和低音的两路信号，分出的低音信号直接输入至所述低频发声模块进行发声，分出的高音信号通过串联所述电容后输入至所述高频发声模块进行发声。该结构使得低频发声模块发出低音，高频发声模块发出高音。本发明的电路中，通过所述第二声音信号输入端将语音信号输入至高频发声模块的第二输入端，当应用本发明的高频发声模块作为受话器时，所述低频发声模块可以作为反相位消音器件，同时本发明的电路仅需要一个功率放大器就可以实现多种应用功能，使得结构简单且应用广泛。
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. 一种电路，应用于发声器件，其特征在于，所述电路包括第一声音信号输入端、第二声音信号输入端、功率放大器、电容以及低频发声模块和高频发声模块，所述第一声音信号输入端用于接收具有高音和低音的声音信号，所述第二声音信号输入端用于接收语音信号；所述第一声音信号输入端连接至所述功率放大器的正输入端；所述功率放大器的负输入端连接至接地；所述功率放大器的输出端分别连接至所述低频发声模块的输入端和所述电容的第一端；所述电容的第二端连接至所述高频发声模块的第一输入端；所述第二声音信号输入端连接至所述高频发声模块的第二输入端。
  2. 一种发声器件，其特征在于，所述发声器件应用如权利要求1所述的电路，所述发声器件包括用于振动发出低音的第一振动***和用于振动发出高音的第二振动***，同时所述第二振动***还可作为受话器功能发声使用；
    其中，所述功率放大器的输出端连接至所述第一振动***；所述电容的第二端和所述第二声音信号输入端均连接至所述第二振动***。
  3. 根据权利要求2所述的发声器件，其特征在于，所述发声器件还包括盆架和固定于所述盆架的磁路***，所述第一振动***和所述第二振动***同轴设置并分别位于所述磁路***的相对两侧；所述第一振动***包括固定于所述盆架的第一振膜和固定于所述第一振膜的第一音圈；所述第二振动***包括固定支撑于所述磁路***的第二振膜和驱动所述第二振膜振动发声的第二音圈；所述磁路***包括第一磁间隙和第二磁间隙，所述第一磁间隙环绕所述第二磁间隙设置；所述第一音圈插设于所述第一磁间隙内并驱动所述第一振膜振动发出低声，所述第二音圈插设于所述第二磁间隙内并驱动所述第二振膜振动发出高声。
  4. 根据权利要求3所述的发声器件，其特征在于，所述磁路***包括磁轭、分别固定于所述磁轭靠近所述第一振膜一侧的主磁钢组和环绕所述主磁钢组的副磁钢组，所述副磁钢组与所述主磁钢组间隔形成所述第一磁间隙，所述磁轭呈环状；所述主磁钢组包括呈环状的主磁钢、盖设固定于所述主磁钢远离所述磁轭一侧的主极芯以及辅助磁钢，所述主磁钢的内壁与所述磁轭的内壁共同围成内腔；所述主极芯包括固定于所述主磁钢的主极芯本体和由所述主极芯本体的内周缘弯折延伸至所述内腔内的主极芯凸出部，所述辅助磁钢盖设固定于所述主极芯本体远离所述磁轭一侧；所述主磁钢和所述磁轭共同环绕所述主极芯凸出部，并共同与所述主极芯凸出部间隔形成开口朝向所述第二振动***的所述第二磁间隙；所述主极芯凸出部呈中空的环状。
  5. 根据权利要求4所述的发声器件，其特征在于，所述发声器件还包括呈环状的支撑架，所述支撑架固定于所述磁轭远离所述盆架一侧，所述第二振膜的周缘支撑固定于所述支撑架远离所述磁轭的一侧；所述磁路***和所述第二振动***共同围成下腔，所述下腔与所述第二磁间隙连通。
  6. 根据权利要求5所述的发声器件，其特征在于，所述第二振膜包括与所述磁轭间隔的第二振膜振动部、由所述第二振膜振动部的外周缘弯折延伸的第二振膜折环部以及由所述第二振膜折环部向所述支撑架弯折延伸的第二振膜连接部；所述第二振膜连接部固定于所述支撑架；所述第二振动***还包括第二骨架，所述第二骨架靠近所述磁路***的一侧固定于所述第二音圈，所述第二骨架远离所述磁路***的一侧固定于所述第二振膜振动部。
  7. 根据权利要求6所述的发声器件，其特征在于，所述第二骨架的包括呈环状的第一固定部、由所述第一固定部的内侧弯折延伸的弹臂以及由所述弹臂向远离所述第一固定部延伸的第二固定部，所述第二振膜连接部和所述支撑架分别固定于所述第一固定部的相对两侧，所述第二振膜振动部和所述第二音圈分别固定于所述第二固定部的相对两侧；所述副磁钢组包括固定于所述磁轭的副磁钢和盖设固定于所述副磁钢远离所述磁轭一侧的副极芯；所述第二骨架还包括由第一固定部的外侧向所述盆架的方向弯折延伸的第三固定部；所述副极芯固定于所述盆架，所述第三固定部固定于所述副极芯远离所述盆架的一侧；所述盆架呈矩形；所述副极芯包括两个，两个所述副极芯分别位于所述盆架的长轴的相对两侧。
  8. 根据权利要求4所述的发声器件，其特征在于，所述第一振膜呈环状，所述第一振膜的内周侧固定于所述辅助磁钢，第一振膜的外周侧固定于所述盆架。
  9. 根据权利要求8所述的发声器件，其特征在于，所述第一振动***还包括呈环状的第一骨架，所述第一音圈固定于所述第一骨架靠近所述磁路***的一侧；所述第一振膜包括呈环状的第一折环和呈环状的第二折环，所述第一折环绕所述第二折环设置并与所述第一折环相互间隔，所述第二折环环绕所述辅助磁钢设置，所述第二折环的内周侧固定于所述辅助磁钢的外侧，所述第一骨架充当所述第一振膜的球顶，其外周侧固定于所述第一折环的内周侧，其内周侧固定于所述第二折环的外周侧，所述第一折环的外周侧固定于所述盆架。
  10. 根据权利要求9所述的发声器件，其特征在于，所述第一骨架包括呈环状的第一段、由所述第一段的内周侧向所述第一音圈弯折延伸的第二段以及由所述第一段的内周侧向所述磁轭的方向弯折延伸的第三段；所述第一音圈固定于所述第二段靠近所述磁轭的一侧，所述第二段远离所述磁轭的一侧固定于所述第二折环的外周侧；所述第一振动***还包括与所述第一折环间隔设置弹性支撑组件，所述弹性支撑组件的一端固定于所述盆架，所述弹性支撑组件的另一端固定于所述第三段。
PCT/CN2022/120076 2022-08-30 2022-09-21 电路及发声器件 WO2024045234A1 (zh)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2817244Y (zh) * 2005-08-20 2006-09-13 海信集团有限公司 通话和振铃共用单一电路的手机
CN209105403U (zh) * 2018-12-31 2019-07-12 林辉 多单元耳机功率调节器
US20190289391A1 (en) * 2018-03-19 2019-09-19 Shenzhen Grandsun Electronic Co., Ltd. Audio signal processing device and sound box
CN212936178U (zh) * 2020-10-16 2021-04-09 Tcl通力电子（惠州）有限公司 音频输出电路、音频装置及音箱
CN213938315U (zh) * 2020-09-25 2021-08-10 瑞声科技(新加坡)有限公司 发声单体、扬声器模组及电子终端
CN215300909U (zh) * 2021-06-21 2021-12-24 瑞声光电科技(常州)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
CN2817244Y (zh) * 2005-08-20 2006-09-13 海信集团有限公司 通话和振铃共用单一电路的手机
US20190289391A1 (en) * 2018-03-19 2019-09-19 Shenzhen Grandsun Electronic Co., Ltd. Audio signal processing device and sound box
CN209105403U (zh) * 2018-12-31 2019-07-12 林辉 多单元耳机功率调节器
CN213938315U (zh) * 2020-09-25 2021-08-10 瑞声科技(新加坡)有限公司 发声单体、扬声器模组及电子终端
CN212936178U (zh) * 2020-10-16 2021-04-09 Tcl通力电子（惠州）有限公司 音频输出电路、音频装置及音箱
CN215300909U (zh) * 2021-06-21 2021-12-24 瑞声光电科技(常州)有限公司 发声器件

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