WO2018076606A1 - 一种扬声器及耳机 - Google Patents

一种扬声器及耳机 Download PDF

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Publication number
WO2018076606A1
WO2018076606A1 PCT/CN2017/078177 CN2017078177W WO2018076606A1 WO 2018076606 A1 WO2018076606 A1 WO 2018076606A1 CN 2017078177 W CN2017078177 W CN 2017078177W WO 2018076606 A1 WO2018076606 A1 WO 2018076606A1
Authority
WO
WIPO (PCT)
Prior art keywords
magnetic
ring
annular
inner magnetic
magnetic ring
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/CN2017/078177
Other languages
English (en)
French (fr)
Inventor
贡维勇
吴海全
师瑞文
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.)
Shenzhen Grandsun Electronics Co Ltd
Original Assignee
Shenzhen Grandsun Electronics 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 Shenzhen Grandsun Electronics Co Ltd filed Critical Shenzhen Grandsun Electronics Co Ltd
Priority to EP17863968.8A priority Critical patent/EP3429228B1/en
Priority to JP2018544208A priority patent/JP6873149B2/ja
Publication of WO2018076606A1 publication Critical patent/WO2018076606A1/zh
Priority to US16/102,454 priority patent/US10499140B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H04R1/1091—Details not provided for in groups H04R1/1008 - H04R1/1083
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • 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
    • H04R9/06—Loudspeakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H04R1/1058—Manufacture or assembly
    • 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
    • H04R2209/024—Manufacturing aspects of the magnetic circuit of loudspeaker or microphone transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R2400/00—Loudspeakers
    • H04R2400/11—Aspects regarding the frame of loudspeaker transducers

Definitions

  • the present invention relates to the field of electronic product technologies, and in particular, to a speaker and an earphone.
  • the speaker is the sounding component of the earphone, and the key design of the sound control in the speaker is the design of the magnetic circuit.
  • the current magnetic circuit structure is mostly an inner magnetic structure, the magnetic field line is unevenly distributed, and the sound of the speaker is seriously distorted. , reduce the user experience of the headset.
  • An object of the present invention is to provide a speaker and an earphone, which aim to solve the problem that the magnetic line distribution is unevenly asymmetrical and causes the transmitted sound to be distorted.
  • the technical solution of the present invention is: providing a speaker, including a horn bracket
  • the horn bracket is provided with a through hole for arranging the magnetic circuit system
  • the magnetic circuit system includes an inner magnetic ring and an outer magnetic ring sleeved on an outer side of the inner magnetic ring, the axis of the inner magnetic ring being the same as an axis of the outer magnetic ring, the outer magnetic ring a gap is left between the inner annular surface and the outer annular surface of the inner magnetic ring, and the magnetic poles of the two are different, and the magnetic flux lines formed by the outer magnetic ring and the inner magnetic ring are radially arranged;
  • the vibration system includes a sound film, a voice coil, and a coil, the sound film and the coil are respectively disposed at two ends of the voice coil, the coil is placed in the gap, and the sound film is connected At one end of the horn bracket
  • the outer magnetic ring includes a plurality of outer magnetic units connected end to end, and each of the outer magnetic units a first inner magnetic end facing the toroid and a first outer magnetic end facing away from the toroid;
  • the inner magnetic ring includes a plurality of inner magnetic units connected end to end, each of the inner magnetic units having a second inner magnetic end facing the toroid and a second outer magnetic end facing away from the toroid;
  • the first inner magnetic end is different from the second outer magnetic end magnetic pole.
  • the outer magnetic unit is provided with N
  • the inner magnetic unit is provided with M
  • N M
  • the N outer magnetic units are in one-to-one correspondence with the M inner magnetic units. Settings.
  • each of the outer magnetic unit and each of the inner magnetic units has a fan shape or a rectangular cross section, or each of the outer magnetic units and each of the inner magnetic units have a column shape.
  • the magnetic circuit system further includes a magnetic shielding component, and the magnetic shielding component includes a first portion disposed on a side of the inner magnetic ring and the outer magnetic ring and facing the sound film a magnetic shielding group, and a second magnetic shielding group disposed on the other side of the inner magnetic ring and the outer magnetic ring;
  • the first magnetic shielding group includes a first inner magnetic member that is annular and fixed to one side of the inner magnetic ring, and is sleeved outside the first inner magnetic member and fixed to the outer magnetic ring a first outer magnetic member on one side, the first inner magnetic member and the first outer magnetic member are different from the magnetic poles of the side opposite to the sound film, and a closed portion is formed therebetween a toroidal magnetic circuit;
  • the second shielding group includes a second inner magnetic member that is annular and fixed to the other side of the inner magnetic ring, and is sleeved outside the second inner magnetic member and fixed to the outer magnetic ring.
  • a second outer magnetic member on the other side, the magnetic poles of the side of the second inner magnetic member and the second outer magnetic member facing away from the sound film are different
  • a side of the first inner magnetic member and the second inner magnetic member facing the inner magnetic ring is the same as a magnetic pole of an outer annular surface of the inner magnetic ring;
  • the side faces of the first outer magnetic member and the second outer magnetic member that face the outer magnetic ring are the same as the magnetic poles of the inner annular surface of the outer magnetic ring.
  • the horn bracket protrudes from the through hole hole wall with a retaining ring for restricting displacement of the first outer magnetic member toward the sound film, and the retaining ring is located at the through hole Right at the port of the sound film.
  • the horn bracket further includes a U cup fixed to an end of the horn bracket opposite to the sound film, the u cup having a sputum mouth, the sputum mouth
  • the bottom cavity wall defines a through hole communicating with the through hole, and the second inner magnetic member and the second outer magnetic member are fixed to the bottom cavity wall of the cavity.
  • the bottom cavity wall of the cavity is at the outer edge of the perforation and surrounds the perforation and protrudes toward the sound film, the outer wall of the stopper and the mouth of the mouth
  • the bottom chamber wall and the side chamber wall together form an annular groove having a U-shaped cross section, and the magnetic circuit system is fixed in the annular groove.
  • a bottom cavity wall of the cavity of the mouth protrudes toward the gap, and the second outer magnetic member and the second inner magnetic member are respectively disposed on both sides of the annular block.
  • the horn bracket protrudes from the end face opposite to the U cup and surrounds the port edge of the through hole with an annular connecting barrel to the U cup, and the end face of the annular connecting barrel The mouth end of the U cup is docked by an ultrasonic welding process.
  • the horn bracket further includes a damper sheet having a tongue and a ring shape, and the horn bracket is disposed on the surface opposite to the sound film to provide an annular cavity for accommodating the damper sheet And the bottom wall of the annular groove is opposite to the damper sheet and a plurality of bracket holes are formed in the sound film.
  • the horn bracket further includes a circuit board connected to an output line of the audio device, the coil is connected to the circuit board to realize transmission of an audio signal, and the annular pocket is in the damper sheet
  • Two bottom baffles are protruded from the bottom wall of the mouthpiece, and the circuit board is fixed between the two baffles.
  • the horn bracket is provided with a pocket on an end surface opposite to the sound film, and the pocket is provided with an annular step at the intersection of the bottom of the groove and the wall of the groove, and the outer surface of the sound film The edge is fixed to the stepped surface of the annular step.
  • the present invention also provides an earphone comprising a housing, a speaker disposed in the housing and as described above, and a connection line for transmitting audio to the audio device, the connection line and the coil electrical signal connection.
  • the technical effect of the present invention relative to the prior art is: radial magnetization of the inner magnetic ring and the outer magnetic ring by the magnetizing device, so that the gap between the inner magnetic ring and the outer magnetic ring generates radial magnetic lines of force.
  • the magnetic pole between the inner annular surface of the outer magnetic ring and the outer annular surface of the inner magnetic ring is different, and the outer annular surface of the inner magnetic ring and the inner annular surface of the outer magnetic ring are parallel to each other, and parallel to the axis thereof, the gap is generated at the gap.
  • a uniformly distributed and centrally symmetric radial magnetic field line forms an annular radial magnetic field
  • one end of the voice coil is fixedly connected to the sound film, and the other end of the voice coil is connected to the coil, and the coil receives an audio electric signal transmitted by the audio device.
  • the coil is inserted in the gap, and the electromagnetic signal generated by the coil input changes and the uniform and symmetrical radial magnetic field in the gap generates electromagnetic induction, according to the left
  • the principle of hand-determining produces a driving force of varying amplitude and along the axis, pushing the vibrating system to make a reciprocating linear motion, thereby converting the audio electrical signal into a sound signal.
  • the speaker is usually used in the earphone, but it is not limited to the earphone.
  • the inner magnetic ring and the outer magnetic ring are made magnetic, and uniform distribution and symmetric magnetic lines are generated in the gap.
  • the voice coil is only subjected to axial force, which drives the sound film to vibrate.
  • the magnetic circuit system design reduces magnetic flux leakage and hysteresis loss, ensures uniform distribution of magnetic lines of force, reduces distortion, and restores true sound.
  • FIG. 1 is an exploded perspective view of a micro horn provided by an embodiment of the present invention.
  • Figure 2 is a cross-sectional view of Figure 1 taken along line A-A;
  • FIG. 3 is a radial cross-sectional view of an inner magnetic ring and an outer magnetic ring according to an embodiment of the present invention
  • Figure 4 is an enlarged view of E in Figure 2;
  • FIG. 5 is a perspective view of a horn bracket according to an embodiment of the present invention.
  • Figure 6 is a perspective view of the back side of the horn bracket of Figure 5;
  • FIG. 7 is a perspective view of a U-cup provided by an embodiment of the present invention.
  • the present invention provides a speaker including a horn bracket 1, a magnetic circuit system 2, and a vibration system 3.
  • the horn bracket 1 is provided with a through hole 11 for arranging the magnetic circuit system 2.
  • the magnetic circuit system 2 includes an inner magnetic ring 21 and an outer magnetic ring 22 sleeved on the outer side of the inner magnetic ring 21, the axis of the inner magnetic ring 21 is the same as the axis of the outer magnetic ring 22, and the inner ring of the outer magnetic ring 22 A uniform gap 33 is left between the surface and the outer annular surface of the inner magnetic ring 21, and the magnetic poles of the two are different.
  • the magnetic lines of force formed by the outer magnetic ring 22 and the inner magnetic ring 21 in the gap 33 are radially arranged, that is, the radial magnetic lines are formed. .
  • the vibration system 3 includes a sound film 31, a voice coil 32 connected to the sound film 31 at one end, and a coil 34 connected to the other end of the voice coil 32.
  • the coil 34 is placed in the gap 33, and the sound film 31 is connected to the horn holder 1. One end.
  • the inner magnetic ring 21 and the outer magnetic ring 22 are radially magnetized by the magnetizing device, so that the gap 33 between the inner magnetic ring 21 and the outer magnetic ring 22 generates radial magnetic lines of force.
  • the magnetic poles between the inner annular surface of the outer magnetic ring 22 and the outer annular surface of the inner magnetic ring 21 are different, and the outer annular surface of the inner magnetic ring 21 and the inner annular surface of the outer magnetic ring 22 are parallel to each other and parallel to the axis thereof.
  • a uniformly distributed and symmetrical radial magnetic field line is formed at the gap 33, that is, an annular radial magnetic field is formed, and one end of the voice coil 32 is fixedly connected to the sound film 31, and the other end of the voice coil 32 is connected to the coil 34, and the coil 34 is received by the coil 34.
  • the audio signal transmitted from the audio device is inserted into the gap 33, and the changed audio signal is input through the coil 34 to generate electromagnetic induction with a uniform and symmetrical radial magnetic field in the gap 33, and is generated according to the left-hand rule principle.
  • a driving force of different amplitudes along the axis ensures that the coil 34 can linearly reciprocate in the radial magnetic field, reducing the splitting vibration of the vibration system 3, ensuring the true reproduction of the sound, thereby the audio electrical signal Convert to sound signal.
  • the design of the traditional polar core and the lower magnetic guide plate was eliminated, and the magnetite plate design of the conventional low carbon steel was replaced by a magnet.
  • the speaker is generally applied to the earphone, but is not limited to the earphone.
  • the evenly distributed and symmetrical magnetic lines of force cause the voice coil 32 to receive only axial forces, which drive the sound film 31 to vibrate, improving the realism of the audio output through the speaker, and improving the user's experience. Therefore, the magnetic circuit system 2 design reduces magnetic flux leakage and hysteresis loss, ensures uniform distribution of magnetic lines of force, reduces distortion, and restores real sound reproduction.
  • the coil 34 is formed by winding a wire on the outer side wall of one end of the voice coil 32.
  • the important parameter of the coil 34 is a web for indicating the width of the coil. In this embodiment, the entire web is placed. Within the gap 33
  • the direction of the magnetic lines of force formed by the inner magnetic ring 21 and the outer magnetic ring 22 in the gap 33 is directed to the center of the ring.
  • the sound film 31 includes a hollow inner ring film 311, an outer ring film 312, and a middle ring film 313 between the inner ring film 311 and the outer ring film 312 and having an arc shape in cross section, and the outer ring film 312 is fixed.
  • the horn bracket 1 wherein the circular arc opening of the middle ring film 313 faces the voice coil 32, so that the voice coil 32 can elastically deform the middle ring film 31 3, thereby causing the middle ring film 313 to vibrate, and
  • the arc-shaped central ring film 313 and the hollow inner ring film 311 can realize deformation vibration and transmit an audio electric signal.
  • the middle ring film 313 is provided with a plurality of reinforcing ribs 314 which are strip-shaped and are distributed and uniformly distributed by the inner ring film 311 to the outer ring film 312 on the surface facing the voice coil 32.
  • One end of the voice coil 32 is fixed to the middle ring.
  • the ribs 314 can both increase the rigidity of the sound film 31 and improve the audio, thereby improving the quality of the product for outputting audio.
  • the voice coil 32 is bonded to the surface of the middle ring film 313 by a glue having high temperature resistance and strong bonding property, and a variable audio electric signal is input through the coil 34 to generate electromagnetic induction with a radial magnetic field in the gap 33 , thereby generating a variable amplitude.
  • the driving force along the axial direction pushes the vibration system 3 to make a reciprocating linear motion, thereby converting the audio electric signal into a sound signal;
  • the sound film 31 is made of any new polymer material such as PET, PEEK, PAR and PEI.
  • a single layer of film is formed and a titanium layer is added to increase the rigidity of the sound film 31 to extend the high frequency.
  • the coil 34 is freely insertable into the gap 33, that is, there is also a gap between the coil 34 and the inner annular surface of the outer magnetic ring 22, and the inner surface of the insertion end of the voice coil 32 and the outer ring of the inner magnetic ring 21 There is also a gap between the faces.
  • the outer magnetic ring 22 includes a plurality of outer magnetic units 22 connected end to end. 1.
  • the outer magnetic unit 221 has a first inner magnetic end 2211 facing the toroid and a first outer magnetic end 2212 facing away from the toroid;
  • the inner magnetic ring 21 includes a plurality of inner magnetic units 211 connected in the first position, and each inner magnetic unit 211
  • Each of the inner magnetic unit 211 and each of the outer magnetic units 221 is magnetized by a magnetizing device to generate uniform magnetic lines of force, and the plurality of inner magnetic units 211 are connected end to end to form an inner magnetic ring 21, and a plurality of outer magnetic units. 22 ends end to form an outer magnetic ring 22.
  • the side surfaces of the adjacent two inner magnetic units 211 are butted, and the side surfaces of the adjacent two outer magnetic units 22 are butted, and so on, the plurality of inner magnetic units 211 are butted to form an inner magnetic ring.
  • the plurality of outer magnetic units 221 are butted to form the outer magnetic ring 22, so that the outer annular surface of the inner magnetic ring 21 and the inner annular magnetic pole of the outer magnetic ring 22 are different, and the magnetic circuit system design further reduces leakage magnetic flux and hysteresis
  • the loss ensures even distribution of magnetic lines of force, further reducing distortion and restoring true sound to reproduce reality.
  • the coil 34 can linearly reciprocate in the radial magnetic field, reducing the splitting vibration of the vibration system, ensuring the true reproduction of the sound, thereby converting the audio electrical signal into a sound signal.
  • the outer magnetic unit 221 is provided with N
  • the inner magnetic unit 211 is provided with M
  • N M
  • the N outer magnetic units 221 and M are The magnetic unit 211 is a corresponding setting. So that the first inner magnetic end 2211 of the outer magnetic unit 221 can face the second outer magnetic end 2112 of the inner magnetic unit 211 and be parallel to each other, so that the magnetic lines of force in the gap 33 between the two are not The butt joint affects the uniformity of the magnetic lines, so that the magnetic lines in the gap 33 are evenly distributed and more reliable.
  • the outer magnetic unit 221 and each inner magnetic unit 211 are all fan-shaped or rectangular in cross section, or each outer magnetic unit 221 and each inner magnetic unit 211 are in a column shape. .
  • each of the magnetic units 20 has a fan shape in cross section.
  • the magnetic circuit system 2 further includes a magnetic shielding component for electromagnetic shielding, and the magnetic shielding component includes a side disposed on the inner magnetic ring 21 and the outer magnetic ring 22 and a first magnetic shielding group 40 opposite to the sound film 31, and a second magnetic shielding group 50 disposed on the other side of the inner magnetic ring 21 and the outer magnetic ring 22;
  • the first magnetic shield group 40 includes a first inner magnetic member 41 that is annular and fixed to the inner magnetic ring 21 side, and is sleeved on the outer side of the first inner magnetic member 41 and fixed to the outer magnetic ring 22 side.
  • the magnetic poles of the first outer magnetic member 42, the first inner magnetic member 41 and the first outer magnetic member 42 opposite to the sound film 31 are different, and Forming a closed first toroidal magnetic circuit;
  • the second magnetic shield group 50 includes a second inner magnetic member 51 that is annular and fixed to the other side of the inner magnetic ring 21, and is sleeved outside the second inner magnetic member 51 and fixed to the outer magnetic ring 22.
  • the magnetic poles of the side of the second outer magnetic member 52, the second inner magnetic member 51 and the second outer magnetic member 52 which are opposite to the sound film 31 are different, and a closed second annular magnetic circuit is formed therebetween. .
  • the first toroidal magnetic circuit and the second toroidal magnetic circuit are both closed annular magnetic circuits, and the closed annular magnetic circuit is disposed on both sides of the inner magnetic ring 21 or the outer magnetic ring 22, the ring
  • the magnetic circuit effectively prevents external electromagnetic interference to the uniform radial magnetic lines, thereby further improving the quality of the product for outputting audio.
  • the magnetic shielding component is used to ensure the low magnetic flux leakage and magnetic line symmetry of the magnetic circuit of the magnetic circuit system 2, and the plurality of radially magnetized magnetic units 20 constituting the inner magnetic ring 21 and the outer magnetic ring 22 are mainly used.
  • the uniformity and symmetry of the magnetic lines are ensured, and the vibration system 3 can smoothly perform linear reciprocating motion in the magnetic circuit, which reduces the division vibration of the vibration system 3, and ensures the true reproduction of the sound.
  • the design of the traditional polar and lower magnetic plates was eliminated, and the magnetite plate design of the conventional low carbon steel was replaced by a magnet.
  • first inner magnetic member 41 and the second inner magnetic member 51 are respectively bonded to opposite sides of the inner magnetic ring 21; the first outer magnetic member 42 and the second outer magnetic member 52 are respectively bonded to each other; The opposite sides of the magnetic ring 22.
  • the first inner magnetic member 41, the first outer magnetic member 42, the second inner magnetic member 51, and the second outer magnetic member 52 are all annular magnets.
  • the side faces of the first inner magnetic member 41 and the second inner magnetic member 51 facing the inner magnetic ring 21 are all opposite to the outer annular surface of the inner magnetic ring 21.
  • the magnetic poles are the same; the side faces of the first outer magnetic member 42 and the second outer magnetic member 52 opposite to the outer magnetic ring 22 are the same as the magnetic poles of the inner annular surface of the outer magnetic ring 22.
  • the arrangement of the first magnetic shielding group 40 and the second magnetic shielding group 50 can be used for the inner magnetic ring 21 and the outer magnetic ring 22 except that the annular magnetic circuit can be formed to resist external electromagnetic interference. Magnetization is performed to enhance the magnetic properties of the inner magnetic ring 21 and the outer magnetic ring 22, to avoid magnetic leakage of the inner magnetic ring 21 and the outer magnetic ring 22, or to use magnetic dysfunction for a long time, which affects the quality of the transmitted audio.
  • the horn bracket 1 protrudes from the hole wall of the through hole 11 for restricting the retaining ring 12 of the first outer magnetic member 42 from being displaced toward the sound film 31.
  • the ring 12 is located at the port of the through hole 11 facing the sound film 31 for axial limitation of the first outer magnetic member 42.
  • the retaining ring 12 is circumferentially disposed along the inner wall of the through hole 11, and of course, the setting form is not only To be limited thereto, it suffices that the first outer magnetic member 42 can be stopped.
  • the speaker further includes a U cup 6, which is fixed to the end of the horn bracket 1 opposite to the sound film 31, and the U cup 6 has In the mouth portion 61, the bottom wall of the mouth portion 61 is provided with a through hole 62 communicating with the through hole 11, and the second inner magnetic member 51 and the second outer magnetic member 52 are fixed to the bottom wall of the mouth portion 61.
  • the perforations 62 have a diameter of 4 mm to 12 mm.
  • the bottom wall of the cavity 61 is at the outer edge of the perforation 62 and surrounds the perforation and protrudes from the perforation 31 in the direction of the sound film 31.
  • the outer side wall and the bottom chamber wall and the side chamber wall of the jaw cavity 61 together form an annular groove 64 having a U-shaped cross section, and the magnetic circuit system 2 is fixed in the annular groove 64.
  • the bottom wall of the mouth cavity 61 protrudes toward the gap 33 with an annular stopper 65, the second outer magnetic member 52 and the second inner magnetic body.
  • the 51 pieces are placed on both sides of the annular stopper 65 for separating the second outer magnetic member 52 and the second inner magnetic member 51 to prevent the magnetic circuit system 2 from working normally due to the magnetic attraction. .
  • the horn bracket 1 protrudes from the end face of the U cup 6 and surrounds the port edge of the through hole 11 to the U cup 6.
  • the connecting barrel 13 and the end surface of the annular connecting barrel 13 are butt-joined by the ultrasonic welding process to realize the sealing connection between the end surface of the U cup 6 and the end surface of the annular connecting barrel 13 to prevent dust and liquid from entering the ring.
  • the slot 64 In the slot 64, affecting the normal operation of the magnetic circuit system 2
  • the end surface of the annular connecting cylinder 13 that is opposite to the U cup 6 is stepped, and correspondingly, the end surface of the U cup 6 that abuts the annular connecting cylinder 13 is also stepped, and the end surface of the annular connecting cylinder 13 The shape matches.
  • the speaker further includes a damping piece 70 having a tongue 71 and having a ring shape, and the horn bracket 1 is disposed on the opposite surface of the sound film 31.
  • the annular cavity 14 of the damper sheet 70 is accommodated, and the bottom wall of the annular cavity 14 is opposite to the damper plate 70 and a plurality of bracket holes 15 are formed in the sound film 31.
  • the annular receiving groove 14 is formed around the annular connecting tube 13 , and the damping piece 70 covers the plurality of bracket holes.
  • the speaker further includes a circuit board 80 connected to the output line of the audio device, and the coil 34 is connected to the circuit board 80 to realize the transmission of the audio signal.
  • the coil 34 is connected to the circuit board 80 to realize the transmission of the audio signal.
  • 14 in and Two dams 16 are protruded from the bottom wall of the damper 71 of the damper plate 70, and the circuit board 80 is fixed between the two barrier strips 16.
  • the horn bracket 1 is recessed in the end surface opposite to the sound film 31.
  • the cavity 17 is provided with an annular step 18 at the intersection of the groove bottom and the groove wall, and the outer edge of the sound film 31 is fixed. On the step surface of the annular step 18.
  • the outer ring film 312 of the sound film 31 is fixed on the step surface of the annular step 18.
  • the axis 41 of the first outer magnetic member 42, the second inner magnetic member 51, the second outer magnetic member 52 and the U cup 6 are all the same, and the sound film 31, the voice coil 32, the horn bracket 1, the inner magnetic ring 21,
  • the central holes of the first inner magnetic member 41, the second inner magnetic member 51 and the U cup 6 are all connected and coaxial
  • the present invention further provides an earphone, comprising a housing, a speaker disposed in the housing and as described above, and a connection line for connecting audio to the audio device, the connection line It is electrically connected to the coil 34.
  • the speaker is applied to the earphone, and the inner magnetic ring 21 and the outer magnetic ring 22 are radially magnetized to make the inner magnetic ring 21 and the outer magnetic ring 22 magnetic, and A uniformly distributed and symmetric magnetic line is generated in the gap 33, so that the voice coil 32 is only subjected to the axial force, which drives the sound film 31 to vibrate, improves the authenticity of the audio effect output through the earphone, and improves the user experience of the earphone.

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

Abstract

一种扬声器及耳机，包括喇叭支架（1）、磁路系统（2）和振动系统（3），喇叭支架（1）开设用于安置磁路系统（2）的通孔（11）；磁路系统（2）包括内磁环（21）以及套设于内磁环（21）外侧的外磁环（22），内磁环（21）与外磁环（22）的轴线相同，外磁环（22）的内环面与内磁环（21）的外环面之间留有间隙（33），且二者磁极相异，外磁环（22）和内磁环（21）在间隙（33）形成的磁力线径向设置；振动系统（3）包括音膜（31）、一端与音膜（31）连接的音圈（32）以及与音圈（32）另一端连接的线圈（34），线圈（34）置于间隙（33）内，音膜（31）连接于喇叭支架（1）的一端部。该磁路系统（2）的设计减少了漏磁及磁滞损耗，确保了磁力线分布均匀对称，降低了失真，还原真声再现真实感。

Description

说明书 发明名称：一种扬声器及耳机
技术领域
[0001] 本发明涉及电子产品技术领域， 尤其涉及一种扬声器及耳机。
背景技术
[0002] 随着生活水平不断提高， 人们承受来自工作、 生活等方面的压力不断增加， 音 乐成为人们减缓压力的有效途径之一。 随着耳机不断更新换代， 人们对耳机的 音质要求也越来严格。
[0003] 扬声器是耳机的发声元件， 而扬声器中控制音效的关键设计是磁路的设计， 目 前的磁路结构大都为内磁式结构， 磁力线分布不均匀不对称， 扬声器传出的声 音失真严重， 降低耳机的用户体验。
技术问题
[0004] 本发明的目的在于提供一种扬声器及耳机， 旨在解决磁力线分布不均匀不对称 ， 并导致传出的声音失真的问题。
问题的解决方案
技术解决方案
[0005] 为解决上述技术问题， 本发明的技术方案是： 提供一种扬声器， 包括喇叭支架
、 磁路系统和振动系统，
[0006] 所述喇叭支架幵设用于安置所述磁路系统的通孔；
[0007] 所述磁路系统包括内磁环以及套设于所述内磁环的外侧的外磁环， 所述内磁环 的轴线与所述外磁环的轴线相同， 所述外磁环的内环面与所述内磁环的外环面 之间留有间隙， 且二者磁极相异， 所述外磁环和所述内磁环在所述间隙形成的 磁力线径向设置；
[0008] 所述振动系统包括音膜、 音圈以及线圈， 所述音膜和所述线圈分别设于所述音 圈的两端， 所述线圈置于所述间隙内， 所述音膜连接于所述喇叭支架的一端部
[0009] 进一步地， 所述外磁环包括多个首尾相连的外磁性单元， 各所述外磁性单元具 有朝向环心的第一内磁性端和背离环心的第一外磁性端；
[0010] 所述内磁环包括多个首尾相连的内磁性单元， 各所述内磁性单元具有朝向环心 的第二内磁性端和背离环心的第二外磁性端；
[0011] 所述第一内磁性端与所述第二外磁性端磁极相异。
[0012] 优选地， 所述外磁性单元设置有 N个， 所述内磁性单元设置有 M个， 则 N=M， 且 N个所述外磁性单元与 M个所述内磁性单元一一对应设置。
[0013] 进一步地， 各所述外磁性单元以及各所述内磁性单元的截面皆呈扇形或矩形， 或者各所述外磁性单元以及各所述内磁性单元皆呈柱状。
[0014] 进一步地， 所述磁路系统还包括磁屏蔽组件， 所述磁屏蔽组件包括设于所述内 磁环与所述外磁环一侧且与所述音膜相正对的第一磁屏蔽组， 以及设于所述内 磁环与所述外磁环另一侧的第二磁屏蔽组；
[0015] 所述第一磁屏蔽组包括呈环状且固定于所述内磁环一侧的第一内磁性件以及套 设在所述第一内磁性件外侧且固定于所述外磁环一侧的第一外磁性件， 所述第 一内磁性件以及所述第一外磁性件二者与所述音膜相正对的侧面的磁极相异， 且二者之间形成封闭的第一环形磁路；
[0016] 所述第二屏蔽组包括呈环状且固定于所述内磁环另一侧的第二内磁性件以及套 设在所述第二内磁性件外侧且固定于所述外磁环另一侧的第二外磁性件， 所述 第二内磁性件以及所述第二外磁性件二者与所述音膜相背离的侧面的磁极相异
， 且二者之间形成封闭的第二环形磁路。
[0017] 优选地， 所述第一内磁性件以及所述第二内磁性件中与所述内磁环相正对的侧 面皆与所述内磁环的外环面的磁极相同； 所述第一外磁性件以及所述第二外磁 性件中与所述外磁环相正对的侧面皆与所述外磁环的内环面的磁极相同。
[0018] 进一步地， 所述喇叭支架于所述通孔孔壁凸设有用于限制所述第一外磁性件向 所述音膜方向移位的挡环， 所述挡环位于所述通孔正对于所述音膜的端口处。
[0019] 进一步地， 所述喇叭支架还包括 U杯， 所述 U杯固定于所述喇叭支架中与所述 音膜相背对的端部， 所述 u杯具有幵口腔， 所述幵口腔的底腔壁幵设与所述通孔 连通的穿孔， 所述第二内磁性件与所述第二外磁性件固定于所述幵口腔的底腔 壁。 [0020] 进一步地， 所述幵口腔的底腔壁在所述穿孔的外边缘且围绕所述穿孔且向所述 音膜方向凸设挡筒， 所述挡筒的外侧壁以及所述幵口腔的底腔壁和侧腔壁共同 形成截面呈 U型的环形槽， 所述磁路系统固定于所述环形槽内。
[0021] 进一步地， 所述幵口腔的底腔壁朝向所述间隙凸设环形挡块， 所述第二外磁性 件与所述第二内磁性件件分置于所述环形挡块两侧。
[0022] 进一步地， 所述喇叭支架在与所述 U杯相正对的端面且围绕所述通孔的端口边 缘向所述 U杯凸设环形连接筒， 所述环形连接筒的端面与所述 U杯的幵口端端面 通过超声焊接工艺对接。
[0023] 进一步地， 所述喇叭支架还包括具有幵口且呈环形的阻尼片， 所述喇叭支架在 于所述音膜相背对的表面上幵设用于容纳所述阻尼片的环形容槽， 且所述环形 容槽的底壁与所述阻尼片相正对且向所述音膜幵设多个支架孔。
[0024] 进一步地， 所述喇叭支架还包括与音频设备输出线连接的电路板， 所述线圈与 所述电路板连接以实现音频信号的传递， 所述环形容槽在与所述阻尼片的幵口 相正对的底壁凸设两隔挡条， 所述电路板固定于两所述隔挡条之间。
[0025] 进一步地， 所述喇叭支架在与所述音膜相正对的端面凹设容槽， 所述容槽在其 槽底与槽壁交接处设有环形台阶， 所述音膜的外边缘固定于所述环形台阶的台 阶面。
[0026] 本发明还提供一种耳机， 包括壳体、 设于所述壳体内并如上述的扬声器， 以及 用于与音频设备连接传输音频的连接线， 所述连接线与所述线圈电信号连接。 发明的有益效果
有益效果
[0027] 本发明相对于现有技术的技术效果是： 通过充磁设备对内磁环以及外磁环进行 径向充磁， 使内磁环与外磁环之间的间隙产生径向磁力线。 外磁环的内环面与 内磁环的外环面之间磁极相异， 内磁环的外环面与外磁环的内环面相互平行， 且与其轴线平行， 则在间隙处会产生分布均匀且中心对称的径向磁力线， 即形 成环形径向磁场， 而音圈的一端与音膜固定连接， 音圈的另一端与线圈连接， 该线圈接收由音频设备传过来的音频电信号， 线圈插设于间隙内， 通过线圈输 入变化的音频电信号与间隙内的均匀且对称的径向磁场产生电磁感应， 根据左 手定则原理， 产生一个幅度不一的且沿着轴线的驱动力， 推动振动系统做往复 的线性运动， 从而将音频电信号转换为声音信号。 该扬声器通常应用于耳机内 ， 但并不仅限于耳机， 通过对内磁环以及外磁环进行径向充磁， 使内磁环以及 外磁环具有磁性， 且在间隙内产生分布均匀且对称磁力线， 使音圈只受到轴向 力， 带动音膜振动。 该磁路系统设计减少了漏磁及磁滞损耗， 确保了磁力线分 布均匀对称， 降低了失真， 还原真声再现真实感。
对附图的简要说明
附图说明
[0028] 图 1是本发明实施例提供的微型喇叭的立体分解图；
[0029] 图 2是图 1沿中线 A-A的剖视图；
[0030] 图 3是本发明实施例提供的内磁环与外磁环的径向的剖视图；
[0031] 图 4是图 2中 E处的放大图；
[0032] 图 5是本发明实施例提供的喇叭支架的立体图；
[0033] 图 6是图 5中喇叭支架的背面的立体图；
[0034] 图 7是本发明实施例提供的 U杯的立体图。
[0035] 上述附图所涉及的标号明细如下：
[]
[表 1]
Figure imgf000007_0001
本发明的实施方式 [0036] 为了使本发明的目的、 技术方案及优点更加清楚明白， 以下结合附图及实施例 ， 对本发明进行进一步详细说明。 应当理解， 此处所描述的具体实施例仅仅用 以解释本发明， 并不用于限定本发明。
[0037] 需要说明的是， 当元件被称为 "固定于"或"设置于 "另一个元件上， 它可以直接 在另一个元件上或者它可能通过第三部件间接固定于或设置于另一个元件上。 当一个元件被称为"连接于 "另一个元件， 它可以是直接连接到另一个元件或者它 可能通过第三部件间接连接于另一个元件上。
[0038] 还需要说明的是， 本实施例中的左、 右、 上、 下等方位用语， 仅是互为相对概 念或是以产品的正常使用状态为参考的， 而不应该认为是具有限制性的。
[0039] 请同吋参阅图 1至图 4， 本发明提供一种扬声器， 包括喇叭支架 1、 磁路系统 2和 振动系统 3。
[0040] 其中， 喇叭支架 1幵设用于安置磁路系统 2的通孔 11。
[0041] 磁路系统 2包括内磁环 21以及套设于内磁环 21的外侧的外磁环 22， 内磁环 21的 轴线与外磁环 22的轴线相同， 外磁环 22的内环面与内磁环 21的外环面之间留有 均匀间隙 33， 且二者磁极相异， 外磁环 22与内磁环 21在间隙 33内形成的磁力线 径向设置， 即形成径向磁力线。
[0042] 振动系统 3包括音膜 31、 一端与音膜 31连接的音圈 32以及与音圈 32的另一端连 接的线圈 34， 线圈 34置于间隙 33内， 音膜 31连接于喇叭支架 1的一端部。
[0043] 在本实施例中， 通过充磁设备对内磁环 21以及外磁环 22进行径向充磁， 使内磁 环 21与外磁环 22之间的间隙 33产生径向磁力线。 外磁环 22的内环面与内磁环 21 的外环面之间磁极相异， 内磁环 21的外环面与外磁环 22的内环面相互平行， 且 与其轴线平行， 则在间隙 33处会产生分布均匀且对称的径向磁力线， 即形成环 形径向磁场， 而音圈 32的一端与音膜 31固定连接， 音圈 32的另一端与线圈 34连 接， 该线圈 34接收由音频设备传过来的音频电信号， 线圈 34插设于间隙 33内， 通过线圈 34输入变化的音频电信号与间隙 33内的均匀且对称的径向磁场产生电 磁感应， 根据左手定则原理， 产生一个幅度不一的且沿着轴线的驱动力， 确保 了线圈 34能够在径向磁场中做线性的往复运动， 减少了振动系统 3的分割振动， 保证了声音的真实再现， 从而将音频电信号转换为声音信号。 而且， 在本实施 例中， 取消了传统的极芯和下导磁板的设计， 用磁铁取代了传统的低碳钢的导 磁板设计。 该扬声器通常应用于耳机内， 但并不仅限于耳机， 通过对内磁环 21 以及外磁环 22进行径向充磁， 使内磁环 21以及外磁环 22具有磁性， 且在间隙 33 内产生分布均匀且对称磁力线， 使音圈 32只受到轴向力， 带动音膜 31振动， 提 高通过扬声器输出的音频效果的真实度， 提高了用户的体验性。 因此， 该磁路 系统 2设计减少了漏磁及磁滞损耗， 确保了磁力线分布均匀对称， 降低了失真， 还原真声再现真实感。
[0044] 具体地， 线圈 34是在音圈 32的一端外侧壁缠绕导线而形成的， 线圈 34有一重要 参数是卷幅， 用来表明线圈的宽度， 在本实施例中， 整个卷幅均置于间隙 33内
[0045] 在本实施例中， 内磁环 21与外磁环 22在间隙 33内形成的磁力线方向皆是指向环 心。
[0046] 具体地， 音膜 31包括中空的内环膜 311、 外环膜 312以及位于内环膜 311与外环 膜 312之间且截面呈圆弧状的中环膜 313， 外环膜 312固定在喇叭支架 1的一端面 上， 其中， 中环膜 313的圆弧幵口朝向音圈 32， 这样， 音圈 32便可拉动中环膜 31 3弹性变形， 进而使中环膜 313产生振动， 并且凭借呈圆弧状的中环膜 313以及中 空的内环膜 311， 可实现变形振动， 将音频电信号传出。 中环膜 313在与音圈 32 相正对的表面上设有呈条状并由内环膜 311向外环膜 312发散式并均匀分布的多 个加强筋 314， 音圈 32的一端固定于中环膜 313。 加强筋 314既能够增加音膜 31的 刚性， 又能改善音频， 从而提高用于输出音频的产品的品质。 音圈 32通过耐高 温且粘结性能强的胶水粘结在中环膜 313表面上， 通过线圈 34输入变化的音频电 信号与间隙 33内的径向磁场产生电磁感应， 从而产生一个幅度不一的沿轴向的 驱动力， 推动振动系统 3做往复的线性运动， 进而将音频电信号转换为声音信号 ； 其中， 音膜 31是采用 PET、 PEEK. PAR与 PEI等之中任一新型高分子材料形成 单层膜片， 并加镀钛层符合而成， 用以增加音膜 31的刚性延展高频。
[0047] 具体地， 线圈 34可自由插入间隙 33内， 即线圈 34与外磁环 22的内环面之间也具 有间隙， 以及音圈 32的插入端的内表面与内磁环 21的外环面之间也具有间隙。
[0048] 进一步地， 请同吋参阅图 1至图 4， 外磁环 22包括多个首尾相连的外磁性单元 22 1， 各外磁性单元 221具有朝向环心的第一内磁性端 2211和背离环心的第一外磁 性端 2212; 内磁环 21包括多个首位相连的内磁性单元 211， 各内磁性单元 211具 有朝向环心的第二内磁性端 2111和背离环心的第二外磁性端 2112; 第一内磁性 端 2211与第二外磁性端 2112磁极相异。
[0049] 通过充磁设备向各内磁性单元 211以及各外磁性单元 221进行充磁， 使其分别产 生均匀的磁力线， 多个内磁性单元 211首尾相连形成内磁环 21， 多个外磁性单元 22首尾相连形成外磁环 22。 在本实施例中， 相邻的两内磁性单元 211的侧表面对 接， 同样地， 相邻的两外磁性单元 22的侧表面对接， 以此类推， 多个内磁性单 元 211对接形成内磁环 21， 多个外磁性单元 221对接形成外磁环 22， 使内磁环 21 的外环面与外磁环 22的内环面磁极相异， 该磁路系统设计更加减少了漏磁及磁 滞损耗， 更加确保了磁力线分布均匀对称， 进一步降低了失真， 还原真声再现 真实感。 同吋， 确保了线圈 34能够在径向磁场中做线性的往复运动， 减少了振 动系统的分割振动， 保证了声音的真实再现， 从而将音频电信号转换为声音信 号。
[0050] 优选地， 请同吋参阅图 1至图 4， 外磁性单元 221设置有 N个， 内磁性单元 211设 置有 M个， 则 N=M， 且 N个外磁性单元 221与 M个内磁性单元 211—一对应设置。 这样设置， 使外磁性单元 221的第一内磁性端 2211可与内磁性单元 211的第二外 磁性端 2112相正对， 且相互平行， 使二者之间的间隙 33内的磁力线不会因为对 接缝隙影响磁力线均匀性， 使间隙 33内的磁力线分布均匀且更加可靠。
[0051] 进一步地， 请同吋参阅图 1和图 3， 各外磁性单元 221以及各内磁性单元 211的截 面皆呈扇形或矩形， 或者各外磁性单元 221以及各内磁性单元 211皆呈柱状。
[0052] 在本实施例中， 各磁性单元 20的截面呈扇形。
[0053] 进一步地， 请同吋参阅图 1至图 4， 磁路系统 2还包括用于电磁屏蔽的磁屏蔽组 件， 磁屏蔽组件包括设于内磁环 21与外磁环 22—侧且与音膜 31相正对的第一磁 屏蔽组 40， 以及设于内磁环 21与外磁环 22另一侧的第二磁屏蔽组 50;
[0054] 第一磁屏蔽组 40包括呈环状且固定于内磁环 21—侧的第一内磁性件 41以及套设 在第一内磁性件 41外侧且固定于外磁环 22—侧的第一外磁性件 42， 第一内磁性 件 41以及第一外磁性件 42二者与音膜 31相正对的侧面的磁极相异， 且二者之间 形成封闭的第一环形磁路；
[0055] 第二磁屏蔽组 50包括呈环状且固定于内磁环 21另一侧的第二内磁性件 51以及套 设在第二内磁性件 51外侧且固定于外磁环 22另一侧的第二外磁性件 52， 第二内 磁性件 51以及第二外磁性件 52二者与音膜 31相背离的侧面的磁极相异， 且二者 之间形成封闭的第二环形磁路。
[0056] 在本实施例中， 第一环形磁路与第二环形磁路皆为封闭的环形磁路， 将封闭的 环形磁路设在内磁环 21或者外磁环 22两侧， 该环形磁路有效避免外界电磁对均 匀径向磁力线产生干扰， 从而更加提高用于输出音频的产品的品质。 采用了此 磁屏蔽组件， 更加确保了磁路系统 2的磁气回路的低漏磁和磁力线的对称， 采用 构成内磁环 21、 外磁环 22的多个径向充磁的磁性单元 20主要保证了磁力线的均 匀和对称， 确保了振动系统 3能够在磁气回路中平稳地做线性往复运动， 减少了 振动系统 3的分割振动， 保证了声音的真实再现。 同吋， 取消了传统的极芯和下 导磁板的设计， 用磁铁取代了传统的低碳钢的导磁板设计。
[0057] 具体地， 第一内磁性件 41与第二内磁性件 51分别粘合在内磁环 21的相对两侧； 第一外磁性件 42与第二外磁性件 52件分别粘合在外磁环 22的相对两侧。
[0058] 在本实施例中， 第一内磁性件 41、 第一外磁性件 42、 第二内磁性件 51以及第二 外磁性件 52皆为环形磁铁。
[0059] 优选地， 请同吋参阅图 1至 4， 第一内磁性件 41以及第二内磁性件 51中与内磁环 21相正对的侧面皆与内磁环 21的外环面的磁极相同； 第一外磁性件 42以及第二 外磁性件 52中与外磁环 22相正对的侧面皆与外磁环 22的内环面的磁极相同。
[0060] 在本实施例中， 第一磁屏蔽组 40与第二磁屏蔽组 50的设置， 除了形成环形磁路 能够抗外界电磁干扰， 还可以用来为内磁环 21与外磁环 22进行充磁， 增强内磁 环 21与外磁环 22的磁性， 避免内磁环 21与外磁环 22漏磁， 或者使用吋间过久， 磁性衰退， 影响传输的音频质量。
[0061] 进一步地， 请同吋参阅图 2和图 5， 喇叭支架 1于通孔 11的孔壁凸设用于限制第 一外磁性件 42向音膜 31方向移位的挡环 12， 挡环 12位于通孔 11正对于音膜 31的 端口处， 用于第一外磁性件 42的轴向限位。
[0062] 在本实施例中， 挡环 12是沿着通孔 11内壁周向设置的， 当然， 设置形式并不仅 限于此， 只要可以实现止挡第一外磁性件 42即可。
[0063] 进一步地， 请同吋参阅图 1、 图 2和图 7， 扬声器还包括 U杯 6， U杯 6固定于喇叭 支架 1中与音膜 31相背对的端部， U杯 6具有幵口腔 61， 幵口腔 61的底腔壁幵设与 通孔 11连通的穿孔 62， 第二内磁性件 51与第二外磁性件 52固定于幵口腔 61的底 腔壁。
[0064] 具体地， 穿孔 62的直径为 4mm至 12mm。
[0065] 进一步地， 请同吋参阅图 1、 图 2和图 7， 幵口腔 61的底腔壁在穿孔 62的外边缘 且围绕穿孔且向音膜 31方向凸设挡筒 63， 挡筒 63的外侧壁以及幵口腔 61的底腔 壁和侧腔壁共同形成截面呈 U型的环形槽 64， 磁路系统 2固定于环形槽 64内。
[0066] 进一步地， 请同吋参阅图 1、 图 2、 图 4和图 7， 幵口腔 61的底腔壁朝向间隙 33凸 设环形挡块 65， 第二外磁性件 52与第二内磁性件 51件分置于环形挡块 65两侧， 用以将第二外磁性件 52与第二内磁性件 51件隔幵， 防止由于磁吸作用而结合在 一起， 影响磁路系统 2正常工作。
[0067] 进一步地， 请同吋参阅图 1、 图 2、 图 5和图 7， 喇叭支架 1在与 U杯 6相正对的端 面且围绕通孔 11的端口边缘向 U杯 6凸设环形连接筒 13， 环形连接筒 13的端面与 U 杯 6的幵口端端面通过超声焊接工艺对接， 实现 U杯 6的端面与环形连接筒 13的端 面之间的密封连接， 避免灰尘、 液体进入环形槽 64内， 影响磁路系统 2正常工作
[0068] 具体地， 环形连接筒 13与 U杯 6相对接的端面呈阶梯状， 相对应的， U杯 6与环 形连接筒 13对接的端面也呈阶梯状， 且与环形连接筒 13的端面外形相匹配。
[0069] 进一步地， 请同吋参阅图 1、 图 2和图 5， 扬声器还包括具有幵口 71且呈环形的 阻尼片 70， 喇叭支架 1在于音膜 31相背对的表面上幵设用于容纳阻尼片 70的环形 容槽 14， 且环形容槽 14的底壁与阻尼片 70相正对且向音膜 31幵设多个支架孔 15
[0070] 具体地， 环形容槽 14是围绕环形连接筒 13幵设而成， 阻尼片 70盖于多个支架孔
15上， 起到减少噪声、 减少震动的作用。
[0071] 进一步地， 请同吋参阅图 1、 图 2和图 5， 扬声器还包括与音频设备输出线连接 的电路板 80， 线圈 34与电路板 80连接以实现音频信号的传递， 环形容槽 14在与 阻尼片 70的幵口 71相正对的底壁凸设两隔挡条 16， 电路板 80固定于两隔挡条 16 之间。
[0072] 进一步地， 喇叭支架 1在与音膜 31相正对的端面凹设容槽 17， 容槽 17在其槽底 与槽壁交接处设有环形台阶 18， 音膜 31的外边缘固定于环形台阶 18的台阶面。
[0073] 具体地， 请同吋参阅图 1、 图 2和图 6， 音膜 31的外环膜 312固定在环形台阶 18的 台阶面上。
[0074] 综上所述， 在本实施例中， 请同吋参阅图 1至图 7， 音膜 31、 音圈 32、 喇叭支架 1、 内磁环 21、 外磁环 22、 第一内磁性件 41、 第一外磁性件 42、 第二内磁性件 51 、 第二外磁性件 52以及 U杯 6的轴线皆相同， 且音膜 31、 音圈 32、 喇叭支架 1、 内 磁环 21、 第一内磁性件 41、 第二内磁性件 51以及 U杯 6的中心孔皆相通且同轴线
[0075] 请同吋参阅图 1至图 4， 本发明还提供一种耳机， 包括壳体、 设于壳体内并如上 述的扬声器， 以及用于与音频设备连接传输音频的连接线， 连接线与线圈 34电 信号连接。
[0076] 在本实施例中， 将上述的扬声器应用于耳机上， 通过对内磁环 21以及外磁环 22 进行径向充磁， 使内磁环 21以及外磁环 22具有磁性， 且在间隙 33内产生分布均 匀且对称磁力线， 使音圈 32只受到轴向力， 带动音膜 31振动， 提高通过耳机输 出的音频效果的真实度， 提高了耳机的用户体验。
[0077] 以上仅为本发明的较佳实施例而已， 并不用以限制本发明， 凡在本发明的精神 和原则之内所作的任何修改、 等同替换和改进等， 均应包含在本发明的保护范 围之内。

Claims

权利要求书
[权利要求 1] 一种扬声器， 包括喇叭支架、 磁路系统和振动系统， 其特征在于， 所述喇叭支架幵设用于安置所述磁路系统的通孔； 所述磁路系统包括内磁环以及套设于所述内磁环的外侧的外磁环， 所 述内磁环的轴线与所述外磁环的轴线相同， 所述外磁环的内环面与所 述内磁环的外环面之间留有间隙， 且二者磁极相异， 所述外磁环和所 述内磁环在所述间隙形成的磁力线径向设置；
所述振动系统包括音膜、 音圈以及线圈， 所述音膜和所述线圈分别设 于所述音圈的两端， 所述线圈置于所述间隙内， 所述音膜连接于所述 喇叭支架的一端部。
[权利要求 2] 如权利要求 1所述的扬声器， 其特征在于， 所述外磁环包括多个首尾 相连的外磁性单元， 各所述外磁性单元具有朝向环心的第一内磁性端 和背离环心的第一外磁性端；
所述内磁环包括多个首尾相连的内磁性单元， 各所述内磁性单元具有 朝向环心的第二内磁性端和背离环心的第二外磁性端；
所述第一内磁性端与所述第二外磁性端磁极相异。
[权利要求 3] 如权利要求 2所述的扬声器， 其特征在于， 所述外磁性单元设置有 N 个， 所述内磁性单元设置有 M个， 则 N=M， 且 N个所述外磁性单元与
M个所述内磁性单元一一对应设置。
[权利要求 4] 如权利要求 2或 3所述的扬声器， 其特征在于， 各所述外磁性单元以及 各所述内磁性单元的截面皆呈扇形或矩形， 或者各所述外磁性单元以 及各所述内磁性单元皆呈柱状。
[权利要求 5] 如权利要求 1所述的扬声器， 其特征在于， 所述磁路系统还包括磁屏 蔽组件， 所述磁屏蔽组件包括设于所述内磁环与所述外磁环一侧且与 所述音膜相正对的第一磁屏蔽组， 以及设于所述内磁环与所述外磁环 另一侧的第二磁屏蔽组；
所述第一磁屏蔽组包括呈环状且固定于所述内磁环一侧的第一内磁性 件以及套设在所述第一内磁性件外侧且固定于所述外磁环一侧的第一 外磁性件， 所述第一内磁性件以及所述第一外磁性件二者与所述音膜 相正对的侧面的磁极相异， 且二者之间形成封闭的第一环形磁路； 所述第二屏蔽组包括呈环状且固定于所述内磁环另一侧的第二内磁性 件以及套设在所述第二内磁性件外侧且固定于所述外磁环另一侧的第 二外磁性件， 所述第二内磁性件以及所述第二外磁性件二者与所述音 膜相背离的侧面的磁极相异， 且二者之间形成封闭的第二环形磁路。 如权利要求 5所述的扬声器， 其特征在于， 所述第一内磁性件以及所 述第二内磁性件中与所述内磁环相正对的侧面皆与所述内磁环的外环 面的磁极相同； 所述第一外磁性件以及所述第二外磁性件中与所述外 磁环相正对的侧面皆与所述外磁环的内环面的磁极相同。
如权利要求 5或 6所述的扬声器， 其特征在于， 所述喇叭支架于所述通 孔孔壁凸设有用于限制所述第一外磁性件向所述音膜方向移位的挡环 ， 所述挡环位于所述通孔正对于所述音膜的端口处。
如权利要求 5或 6所述的扬声器， 其特征在于， 所述喇叭支架还包括 U 杯， 所述 U杯固定于所述喇叭支架中与所述音膜相背对的端部， 所述 U杯具有幵口腔， 所述幵口腔的底腔壁幵设与所述通孔连通的穿孔， 所述第二内磁性件与所述第二外磁性件固定于所述幵口腔的底腔壁。 如权利要求 8所述的扬声器， 其特征在于， 所述幵口腔的底腔壁在所 述穿孔的外边缘且围绕所述穿孔且向所述音膜方向凸设挡筒， 所述挡 筒的外侧壁以及所述幵口腔的底腔壁和侧腔壁共同形成截面呈 U型的 环形槽， 所述磁路系统固定于所述环形槽内。
如权利要求 8所述的扬声器， 其特征在于， 所述幵口腔的底腔壁朝向 所述间隙凸设环形挡块， 所述第二外磁性件与所述第二内磁性件件分 置于所述环形挡块两侧。
如权利要求 8所述的扬声器， 其特征在于， 所述喇叭支架在与所述 U 杯相正对的端面且围绕所述通孔的端口边缘向所述 U杯凸设环形连接 筒， 所述环形连接筒的端面与所述 U杯的幵口端端面通过超声焊接工 艺对接。 [权利要求 12] 如权利要求 1至 3中任一项所述的扬声器， 其特征在于， 所述喇叭支架 还包括具有幵口且呈环形的阻尼片， 所述喇叭支架在于所述音膜相背 对的表面上幵设用于容纳所述阻尼片的环形容槽， 且所述环形容槽的 底壁与所述阻尼片相正对且向所述音膜幵设多个支架孔。
[权利要求 13] 如权利要求 12所述的扬声器， 其特征在于， 所述喇叭支架还包括与音 频设备输出线连接的电路板， 所述线圈与所述电路板连接以实现音频 信号的传递， 所述环形容槽在与所述阻尼片的幵口相正对的底壁凸设 两隔挡条， 所述电路板固定于两所述隔挡条之间。
[权利要求 14] 如权利要求 1至 3中任一项所述的扬声器， 其特征在于， 所述喇叭支架 在与所述音膜相正对的端面凹设容槽， 所述容槽在其槽底与槽壁交接 处设有环形台阶， 所述音膜的外边缘固定于所述环形台阶的台阶面。
[权利要求 15] 一种耳机， 其特征在于， 包括壳体、 设于所述壳体内并如权利要求 1 至14中任一项所述的扬声器， 以及用于与音频设备连接传输音频的连 接线， 所述连接线与所述线圈电信号连接。
PCT/CN2017/078177 2016-10-31 2017-03-24 一种扬声器及耳机 Ceased WO2018076606A1 (zh)

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Publication number Priority date Publication date Assignee Title
US11528562B2 (en) 2011-12-23 2022-12-13 Shenzhen Shokz Co., Ltd. Bone conduction speaker and compound vibration device thereof
US11601761B2 (en) 2011-12-23 2023-03-07 Shenzhen Shokz Co., Ltd. Bone conduction speaker and compound vibration device thereof
US11570556B2 (en) 2014-01-06 2023-01-31 Shenzhen Shokz Co., Ltd. Systems and methods for suppressing sound leakage
WO2020220719A1 (zh) 2019-04-30 2020-11-05 深圳市韶音科技有限公司 一种声学输出装置
US11617045B2 (en) 2014-01-06 2023-03-28 Shenzhen Shokz Co., Ltd. Systems and methods for suppressing sound leakage
US11706574B2 (en) 2014-01-06 2023-07-18 Shenzhen Shokz Co., Ltd. Systems and methods for suppressing sound leakage
US11582564B2 (en) 2014-01-06 2023-02-14 Shenzhen Shokz Co., Ltd. Systems and methods for suppressing sound leakage
US11582563B2 (en) 2014-01-06 2023-02-14 Shenzhen Shokz Co., Ltd. Systems and methods for suppressing sound leakage
CN106375915B (zh) 2016-10-31 2024-04-16 深圳市冠旭电子股份有限公司 一种扬声器及耳机
CN107027088B (zh) * 2017-03-06 2022-12-20 深圳市冠旭电子股份有限公司 径向磁路组装装置及组装方法
EP3595335B1 (en) 2017-03-06 2025-06-18 Shenzhen Grandsun Electronic Co., Ltd. Radial magnetic circuit assembly device and assembling method
CN107360512A (zh) * 2017-08-25 2017-11-17 东莞天籁之音电声制品有限公司 微型双磁路喇叭
CN110418248B (zh) * 2018-04-28 2024-09-13 深圳市冠旭电子股份有限公司 金属振膜及扬声器
CN208638663U (zh) * 2018-08-04 2019-03-22 瑞声科技(新加坡)有限公司 一种扬声器
CN109195077B (zh) * 2018-08-04 2021-06-15 瑞声科技(新加坡)有限公司 扬声器
CN110266336B (zh) * 2019-05-24 2021-05-07 深圳市安永易科技有限公司 一种头戴式蓝牙对讲机
WO2021003602A1 (zh) * 2019-07-05 2021-01-14 瑞声声学科技(深圳)有限公司 激励器
CN211744719U (zh) * 2020-03-05 2020-10-23 瑞声科技(新加坡)有限公司 发声器件
CN112929801B (zh) * 2021-03-04 2022-09-20 歌尔股份有限公司 扬声器和电子设备
CN115706886B (zh) * 2021-08-13 2025-04-25 Gn奥迪欧有限公司 具有交错穿孔的贴耳式头戴耳机
KR20230044799A (ko) * 2021-09-27 2023-04-04 엘지전자 주식회사 음향출력장치 및 디스플레이 디바이스
CN114679670B (zh) * 2022-03-21 2024-03-12 汉得利（常州）电子股份有限公司 一种音圈磁路结构、布置方法及发声装置
CN116847253B (zh) * 2023-06-07 2026-02-17 万魔声学股份有限公司 具有辐射环磁路的微型喇叭
WO2025116812A1 (en) * 2023-11-29 2025-06-05 Razer (Asia-Pacific) Pte. Ltd. Headphone driver
CN121037754A (zh) * 2024-05-28 2025-11-28 哈曼国际工业有限公司 扬声器

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2323545Y (zh) * 1998-02-12 1999-06-09 刘彦雄 无导磁柱和导磁板的扬声器
US20020127976A1 (en) * 2001-03-09 2002-09-12 Wen-Chun Liu Built-in micro-speaker for wireless communication device
US20150172820A1 (en) * 2012-09-03 2015-06-18 Linear Labs, Inc. Transducer and Method of Operation
CN104902406A (zh) * 2015-05-07 2015-09-09 珠海市源声电子有限公司 一种同轴同相双动圈单元喇叭
CN204681583U (zh) * 2015-05-07 2015-09-30 珠海市源声电子有限公司 一种同轴同相双动圈单元喇叭
CN106375915A (zh) * 2016-10-31 2017-02-01 深圳市冠旭电子股份有限公司 一种扬声器及耳机

Family Cites Families (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3943182B2 (ja) * 1997-03-05 2007-07-11 フォスター電機株式会社 スピーカ用磁気回路
CN2373963Y (zh) * 1998-09-30 2000-04-12 王维镛 扬声器
JP3423234B2 (ja) * 1998-11-29 2003-07-07 株式会社シチズン電子 表面実装型電磁発音体
CN1121809C (zh) * 1999-04-09 2003-09-17 张凡 扬声器
TW433707U (en) * 1999-07-09 2001-05-01 Li Da Tang Super linear and long stroke speaker
CN2406437Y (zh) * 1999-07-30 2000-11-15 上海婕迪贸易有限公司 线性长冲程扬声器
TW562362U (en) * 2002-10-14 2003-11-11 Merry Electronics Co Ltd Dual magnetic loop voice transceiver
CN2615975Y (zh) * 2003-04-15 2004-05-12 深圳市美欧电子股份有限公司 双磁回路振动与发声多功能换能器
FR2892886B1 (fr) * 2005-11-03 2008-01-25 Bernard Richoux Transducteur electrodynamique, applications aux haut-parleurs et geophones
US7706563B2 (en) * 2005-12-19 2010-04-27 Harman International Industries, Incorporated Concentric radial ring motor
JP2007306214A (ja) * 2006-05-10 2007-11-22 Fujitsu Ten Ltd スピーカ磁気回路
US8270660B2 (en) * 2006-07-03 2012-09-18 Pioneer Corporation Speaker device and speaker unit
JP4845677B2 (ja) * 2006-10-31 2011-12-28 三洋電機株式会社 電気音響変換装置
US20080170710A1 (en) * 2006-11-13 2008-07-17 Solteras, Inc. Headphone driver with improved frequency response
WO2010130216A1 (zh) * 2009-05-14 2010-11-18 天地泰科技(香港)有限公司 永磁体屏蔽装置及其应用系统
JP2011077783A (ja) * 2009-09-30 2011-04-14 Pioneer Electronic Corp スピーカ装置
CN201733435U (zh) * 2010-08-04 2011-02-02 宁波音王集团有限公司 一种复合磁路扬声器
US8879774B2 (en) * 2011-04-12 2014-11-04 Harman International Industries, Incorporated Loudspeaker magnet assembly with two inner magnets comprising a central bore
CN102892063B (zh) * 2011-07-21 2018-05-01 张凡 具有对称磁路及对称线圈电路的多驱动器换能器
KR101278357B1 (ko) * 2011-10-06 2013-06-25 삼성전기주식회사 선형 진동모터
CN103428610A (zh) * 2012-05-24 2013-12-04 鸿富锦精密工业（深圳）有限公司 喇叭
CN202979238U (zh) * 2012-11-08 2013-06-05 谢玉龙 一种智能低频自动追踪共振耳机喇叭
CN103118319B (zh) * 2013-01-16 2016-04-06 深圳市冠旭电子有限公司 一体式微型降噪喇叭
CN103702267A (zh) * 2013-12-20 2014-04-02 陈坚胜 一种喇叭
CN204031439U (zh) * 2014-05-26 2014-12-17 深圳市冠旭电子有限公司 扬声器
US9686604B2 (en) * 2014-05-27 2017-06-20 Voyetra Turtle Beach, Inc. Hybrid ring-radiator headphone driver
CN204392543U (zh) * 2014-12-31 2015-06-10 国光电器股份有限公司 一种扬声器磁路结构
CN105681982A (zh) * 2016-01-08 2016-06-15 费艳锋 一种新型骨导扬声器及骨导耳机
CN105812997B (zh) * 2016-03-14 2019-08-02 青岛海信电器股份有限公司 一种扬声器
CN105848071A (zh) * 2016-05-24 2016-08-10 青岛歌尔声学科技有限公司 一种耳机扬声器
CN206181357U (zh) * 2016-10-31 2017-05-17 深圳市冠旭电子股份有限公司 一种扬声器及耳机

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2323545Y (zh) * 1998-02-12 1999-06-09 刘彦雄 无导磁柱和导磁板的扬声器
US20020127976A1 (en) * 2001-03-09 2002-09-12 Wen-Chun Liu Built-in micro-speaker for wireless communication device
US20150172820A1 (en) * 2012-09-03 2015-06-18 Linear Labs, Inc. Transducer and Method of Operation
CN104902406A (zh) * 2015-05-07 2015-09-09 珠海市源声电子有限公司 一种同轴同相双动圈单元喇叭
CN204681583U (zh) * 2015-05-07 2015-09-30 珠海市源声电子有限公司 一种同轴同相双动圈单元喇叭
CN106375915A (zh) * 2016-10-31 2017-02-01 深圳市冠旭电子股份有限公司 一种扬声器及耳机

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP3429228A4 *

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