WO2023071473A1 - 一种扬声器模组和耳机 - Google Patents

一种扬声器模组和耳机 Download PDF

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Publication number
WO2023071473A1
WO2023071473A1 PCT/CN2022/114634 CN2022114634W WO2023071473A1 WO 2023071473 A1 WO2023071473 A1 WO 2023071473A1 CN 2022114634 W CN2022114634 W CN 2022114634W WO 2023071473 A1 WO2023071473 A1 WO 2023071473A1
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WO
WIPO (PCT)
Prior art keywords
speaker unit
speaker
conductive
support plate
diaphragm group
Prior art date
Application number
PCT/CN2022/114634
Other languages
English (en)
French (fr)
Inventor
王传果
李运海
吴冬
叶千峰
蒋元武
Original Assignee
北京荣耀终端有限公司
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 北京荣耀终端有限公司 filed Critical 北京荣耀终端有限公司
Priority to EP22885372.7A priority Critical patent/EP4262238A1/en
Priority to US18/272,495 priority patent/US20240089650A1/en
Publication of WO2023071473A1 publication Critical patent/WO2023071473A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00Details of transducers, loudspeakers or microphones
    • H04R1/10Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H04R1/1058Manufacture or assembly
    • H04R1/1075Mountings of transducers in earphones or headphones
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06Loudspeakers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00Details of transducers, loudspeakers or microphones
    • H04R1/02Casings; Cabinets ; Supports therefor; Mountings therein
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00Details of transducers, loudspeakers or microphones
    • H04R1/10Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00Details of transducers, loudspeakers or microphones
    • H04R1/10Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H04R1/1016Earpieces of the intra-aural type
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00Details of transducers, loudspeakers or microphones
    • H04R1/10Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H04R1/1041Mechanical or electronic switches, or control elements
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00Details of transducers, loudspeakers or microphones
    • H04R1/20Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/24Structural combinations of separate transducers or of two parts of the same transducer and responsive respectively to two or more frequency ranges
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02Details
    • H04R9/025Magnetic circuit
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02Details
    • H04R9/04Construction, mounting, or centering of coil
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00Details of transducers, loudspeakers or microphones
    • H04R1/06Arranging circuit leads; Relieving strain on circuit leads
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00Details of transducers, loudspeakers or microphones
    • H04R1/20Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/26Spatial arrangements of separate transducers responsive to two or more frequency ranges
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R17/00Piezoelectric transducers; Electrostrictive transducers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2201/00Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
    • H04R2201/02Details casings, cabinets or mounting therein for transducers covered by H04R1/02 but not provided for in any of its subgroups
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2201/00Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
    • H04R2201/10Details of earpieces, attachments therefor, earphones or monophonic headphones covered by H04R1/10 but not provided for in any of its subgroups
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2400/00Loudspeakers
    • H04R2400/11Aspects regarding the frame of loudspeaker transducers

Definitions

  • the present application relates to the technical field of electronic products, in particular to a speaker module and earphones.
  • the structure of the loudspeaker module in the earphone is relatively poor, and the assembly efficiency is low.
  • the present application provides a loudspeaker module and earphones, which have better structural compactness.
  • the present application provides a speaker module, including: a first speaker unit, a bracket and a second speaker unit.
  • the first speaker unit includes a basin frame and connecting terminals, and the connecting terminals are arranged on the basin frame;
  • the bracket includes a conductive part;
  • the second speaker unit is fixed to the basin frame by means of the bracket, and the electrodes of the second speaker unit are electrically connected to the connecting terminals by means of the conductive part.
  • the first speaker unit and the second speaker unit are connected as a whole by setting a bracket, and using the bracket to fix the basin frame of the first speaker unit and the second speaker unit, so that
  • the first speaker unit and the second speaker unit can be installed as a whole, so that there is no need to install the first speaker unit and the second speaker unit to the shell of the earphone Inside, the installation of the speaker module can be simplified, and the structural compactness of the speaker module can also be realized.
  • the bracket has a conductive part, and the electrodes of the second speaker unit are electrically connected to the connection terminal via the conductive part.
  • the electrical connection relationship between the first speaker unit and the second speaker unit can be simplified at least to a certain extent, at least one signal line for electrically connecting the first speaker unit and the second speaker unit can be omitted, and the entire speaker module can be simplified. structure, and also facilitates the electrical connection of the speaker module to the circuit board by means of terminals.
  • the connecting terminal includes a negative terminal, and the negative pole of the second speaker unit is electrically connected to the negative terminal through a conductive part, and the conductive part can be electrically connected to a ground point on the circuit board. connect.
  • Such setting can omit the negative signal line connected between the negative terminal and the negative pole of the second speaker unit, simplify the structure of the speaker module, and when the conductive part is grounded, the reliability of the bracket can also be improved, at least in a certain Avoid short circuit problems to a certain extent.
  • the first speaker unit includes a first diaphragm group, and the first diaphragm group is supported on the basin frame;
  • the bracket includes a support plate and a connecting part, and the support plate is located on the first One axial side of a speaker unit is opposite to the outer surface of the first diaphragm group, the connection part is connected between the outer peripheral edge of the support plate and the peripheral wall of the basin frame, and the second speaker unit is supported on the side of the support plate away from the first speaker side of the unit.
  • the bracket may not include a support plate.
  • the conductive part may only consist of a part of the connecting part.
  • the conductive part may consist of only the connecting part.
  • the conductive part may be composed of a part of the connecting part and a part of the supporting plate.
  • the conductive part may be composed of a part of the connecting part and the entire support plate.
  • the conductive part may be formed by a bracket.
  • the structure of the bracket can be simplified, the processing and manufacturing of the bracket is facilitated, and the processing cost is reduced.
  • the first sound transmission channel is formed on the support plate, and the second speaker unit does not cover the first sound transmission channel.
  • Such setting can prevent the support plate and the second speaker unit from blocking the sound transmission generated by the vibration of the first diaphragm group, thereby affecting the sound generation effect of the first speaker unit.
  • the first sound transmission channel is a plurality of spaced apart ones.
  • the support plate is formed in a ring shape to define a first sound transmission channel
  • the second speaker unit is formed in a ring shape extending along the circumference of the support plate to define an escape channel, the avoidance channel communicates with the first sound transmission channel.
  • the connecting portion includes at least two sub-parts, at least two sub-parts are arranged at intervals in the circumferential direction of the frame, and each sub-part is connected between the outer peripheral edge of the support plate and the Between the outer peripheral surfaces of the pot frame, each sub-part is formed with a clamping hole, and the outer peripheral surface of the pot frame is formed with a clamping rib matched with the clamping hole. Thereby, the detachable connection between the bracket and the pot frame is realized.
  • ribs may also be formed on the sub-parts, and holes may be formed on the frame.
  • some of the at least two subparts are formed with locking holes.
  • a sound transmission channel may be formed between two adjacent sub-parts. Therefore, the sound transmission channel is used to transmit the sound generated by the vibration of the first diaphragm group, and the sound generation effect of the first speaker unit is improved.
  • a part of the orthographic projection of the sound transmission channel is located within the outer contour of the orthographic projection of the first diaphragm group.
  • a second sound transmission channel is formed on a part of each sub-part located between the first diaphragm group and the support plate. Such setting can further improve the transmission effect of the sound emitted by the first speaker unit.
  • a second sound transmission channel is formed on a part of some of the at least two subparts located between the first diaphragm group and the support plate.
  • the connecting portion is formed as a closed ring extending along the circumferential direction of the frame, the connecting portion is formed with a clamping hole, and the outer peripheral surface of the frame is formed with a clamping hole. Ribs for hole fit. Thereby realize the detachable connection of support and pot frame.
  • ribs may also be formed on the connecting portion, and holes may be formed on the frame.
  • a plurality of locking holes are formed on the connecting portion, and the plurality of locking holes are arranged at intervals in the circumferential direction of the basin frame. In this way, it is beneficial to improve the reliability of cooperation between the connecting portion and the basin frame.
  • a second sound transmission channel is formed on a part of the connecting portion located between the first diaphragm group and the support plate.
  • a plurality of second sound transmission channels are formed on the part of the connecting portion between the first diaphragm group and the support plate, and the plurality of second sound transmission channels Set at intervals in the circumferential direction of the pot frame.
  • the orthographic projection of the second sound transmission channel is located within the outer contour of the orthographic projection of the first diaphragm group. Such setting can further improve the sound transmission effect of the second sound transmission channel to the first speaker unit.
  • the first speaker unit includes a first voice coil, the first voice coil is connected to the inner surface of the first diaphragm group, and the negative terminal is located in the basin frame.
  • the conductive extension part can be electrically connected with the negative lead wire of the first voice coil. Since the negative lead wire of the first voice coil is relatively thin, its structural strength is relatively weak, and it is easy to be scratched and damaged. Therefore, by electrically connecting the conductive extension to the negative lead wire of the first voice coil, the length of the negative lead wire can be shortened, avoiding the negative The problem of scratching and damage of the lead wire and the pot frame is beneficial to improve the reliability of the first voice coil.
  • the peripheral wall of the basin frame has a first opening
  • the negative terminal is provided with a conductive extension part located in the basin frame, and the conductive extension part extends to the first opening, and the conductive part The part of the first opening facing the first opening is connected with the conductive extension part.
  • the speaker module includes a conductive member
  • the connection terminal includes a positive terminal
  • the positive electrode of the second speaker unit is electrically connected to the positive terminal through the conductive member.
  • the conductive member may be an enameled wire. In this way, the insulation between the conductive part and the bracket can be realized.
  • the first speaker unit includes a first voice coil, the first voice coil is connected to the inner surface of the first diaphragm group, and the positive terminal is located in the basin frame.
  • the conductive connection part, the conductive connection part can be electrically connected with the positive lead wire of the first voice coil. Since the positive lead wire of the first voice coil is relatively thin, its structural strength is relatively weak, and it is easy to be scratched and damaged. Therefore, the length of the positive lead wire can be shortened by arranging a conductive connection part to electrically connect with the positive lead wire of the first voice coil, and the positive lead wire is avoided. The problem of scratching and damage of the lead wire and the pot frame is beneficial to improve the reliability of the first voice coil.
  • the positive terminal is provided with a conductive connection part located in the frame, the peripheral wall of the frame has a second opening, and the conductive member extends into the frame through the second opening It is electrically connected with the conductive wiring part.
  • the positive terminal does not need to be placed outside the frame.
  • the outer side protrudes too long, thereby avoiding that the positive electrode terminal protrudes too long from the basin frame and interferes with the structure in the shell.
  • the part of the conductive part is located on the side facing the outer surface of the connecting part, a wiring groove is formed on the outer surface of the connecting part, and the part of the conductive part is located on the side of the connecting part. inside the trunking.
  • Such arrangement can prevent the outer surface of the conductive member protruding from the connection part from interfering with other structures in the housing.
  • the second speaker unit is a piezoelectric ceramic speaker unit, and the piezoelectric ceramic speaker unit is stacked with the support plate. In this way, the structure is more compact.
  • the negative electrode of the second speaker unit is located at one end of the second speaker unit adjacent to the support plate, and the negative electrode of the second speaker unit is connected to the support plate through conductive glue.
  • This setting can facilitate the electrical connection between the negative pole of the second speaker unit and the support plate, and there is no need to additionally arrange structures such as signal lines for electrical connection between the two, which can simplify the structure of the speaker module and reduce the cost of the speaker module. At the same time, it can also facilitate assembly.
  • the positive pole of the second speaker unit is located at the end of the second speaker unit away from the support plate, and the positive pole of the second speaker unit is connected to the conductive member through conductive glue or Solder connected.
  • Such setting can facilitate the separation of the positive pole and the negative pole of the second speaker unit, and can avoid the problem of short circuit at least to a certain extent.
  • the piezoelectric ceramic speaker unit includes a piezoelectric ceramic sheet.
  • the piezoelectric ceramic sheet includes a piezoelectric body, a first electrode layer and a second electrode layer.
  • the first electrode layer is arranged on the surface of the piezoelectric body facing the support plate to form the negative electrode of the piezoelectric ceramic speaker unit, and the first electrode layer and the support plate can be electrically connected through conductive glue.
  • the second electrode layer is arranged on the surface of the piezoelectric body away from the support plate to form the positive pole of the piezoelectric ceramic speaker unit, and the second electrode layer can be electrically connected with the conductive member.
  • the second speaker unit is a moving iron speaker unit, and the moving iron speaker unit is vertically supported on the support plate. In this way, the structure is more compact.
  • the moving iron speaker unit includes a second diaphragm group, and the second diaphragm group is vertically arranged to the first diaphragm group. Therefore, at least to a certain extent, it is possible to prevent the sound output of the first speaker unit from interfering with the vibration of the second diaphragm group.
  • the second speaker unit further includes: a protective case, a reed, a transmission rod, a second magnetic circuit system, and a second voice coil.
  • the second diaphragm group is set in the protective shell to divide the space in the protective shell into the front cavity and the rear cavity.
  • the reed, the transmission rod, the second magnetic circuit system and the second voice coil are all located in the rear cavity.
  • the reed, transmission The rod, the second magnetic circuit system and the second voice coil cooperate to drive the second diaphragm group to vibrate.
  • the second diaphragm group is parallel to the axial direction of the first speaker unit so as to divide the space in the protective case into a front chamber and a rear chamber.
  • the second magnetic circuit system is arranged coaxially with the second voice coil. Therefore, the structure is simple and the volume is small.
  • the reed includes a first sheet body, a second sheet body and a connecting sheet body. Both the first sheet and the second sheet are arranged parallel to the second diaphragm group, the second sheet is located on the side of the first sheet away from the second diaphragm group, and one end of the second sheet is provided beyond the first sheet.
  • the support body on the edge of the body, the connecting piece is connected between the end of the second piece away from the support and the end of the first piece away from the support, the support is connected with one end of the transmission rod, and the other end of the transmission rod Connects to the second diaphragm set.
  • the second magnetic circuit system includes a magnetic conduction part and two magnet parts, the magnetic conduction part is in the shape of a ring, and the axial direction of the magnetic conduction part is the same as that of the first speaker unit.
  • the axial directions are the same, and the first sheet is supported on a side surface of the magnetic permeable part adjacent to the second diaphragm group.
  • the two magnet parts are arranged in the magnetic permeable part and arranged opposite to each other in the radial direction of the magnetic permeable part, and the second piece penetrates from one axial end of the magnetic permeable part to the other axial end of the magnetic permeable part so that the supporting body is located on the magnetic permeable part outside, and the second piece is located between the two magnet parts.
  • the side wall of the protective shell adjacent to the support plate can be configured as a conductive structure, and the conductive structure can form the negative pole of the second speaker unit, and the conductive structure and the support plate are connected through conductive glue. electrically connected, and the negative lead of the second voice coil is welded to the conductive structure. With such an arrangement, the negative pole of the second speaker unit can be electrically connected to the negative terminal through the bracket.
  • a through hole is provided on the peripheral wall of the protective case, and the negative electrode lead wire of the second voice coil can pass through the through hole to be electrically connected to the bracket.
  • a wire hole is formed on the peripheral wall of the protective case, and the conductive member can pass through the wire hole to be electrically connected to the positive lead wire of the second voice coil, or the second voice coil
  • the positive lead wire of the ring passes through the wire hole and is electrically connected with the conductive member.
  • the sound frequency of the second speaker unit is higher than the sound frequency of the first speaker unit.
  • the present application provides an earphone, including: a housing, a circuit board, and the speaker module in any of the above technical solutions.
  • a sound hole is formed on the casing; the circuit board is arranged in the casing; the speaker module is arranged in the casing, and both the first speaker unit and the second speaker unit emit sound toward the sound hole, and the speaker module is electrically connected to the circuit board through the terminal. connect.
  • the first speaker unit and the second speaker unit are connected as One body, so that the speaker module can be modularized, so that when the speaker module is installed, the first speaker unit and the second speaker unit can be installed as a whole, so that there is no need to install the first speaker unit and the second speaker unit to the In the shell of the earphone, the installation of the speaker module can be simplified, and the compactness of the speaker module can also be realized.
  • the bracket has a conductive part, and the electrodes of the second speaker unit are electrically connected to the connection terminal via the conductive part.
  • the electrical connection relationship between the first speaker unit and the second speaker unit can be simplified at least to a certain extent, at least one signal line for electrically connecting the first speaker unit and the second speaker unit can be omitted, and the entire speaker module can be simplified. structure, and also facilitates the electrical connection of the speaker module to the circuit board by means of terminals.
  • FIG. 1 is a schematic structural diagram of an earphone provided by some embodiments of the present application.
  • FIG. 2 is a schematic diagram of an exploded structure of the earphone shown in FIG. 1;
  • Fig. 3 is a schematic diagram of the charging connection between the earphone and the wireless charging base shown in Figs. 1-2;
  • Fig. 4 is a cross-sectional view of earphones provided by other embodiments of the present application.
  • FIG. 5 is a schematic structural diagram of a first speaker unit of the earphone shown in FIG. 4;
  • Fig. 6 is a schematic cross-sectional structure diagram of the first speaker unit shown in Fig. 5;
  • Fig. 7 is a partial structural schematic diagram of earphones provided by some other embodiments of the present application.
  • FIG. 8 is a schematic structural diagram of the speaker module of the earphone shown in FIG. 7;
  • FIG. 9 is a schematic structural view of the bracket in the speaker module shown in FIG. 8;
  • FIG. 10 is a schematic diagram of another angle of the speaker module shown in FIG. 8;
  • Fig. 11 is a schematic structural diagram of a stent according to another embodiment of the present application.
  • Fig. 12a is a schematic structural diagram of a stent according to some other embodiments of the present application.
  • Fig. 12b is a schematic structural diagram of stents in other embodiments of the present application.
  • FIG. 13 is a schematic diagram of another angle of the speaker module shown in FIG. 8;
  • Figure 14a is an enlarged view of the part circled at A of the speaker module shown in Figure 13;
  • Fig. 14b is a sectional view of the speaker module shown in Fig. 13 at line B-B;
  • Fig. 15 is a schematic diagram of connection of the bracket, the second speaker unit, the connecting terminal and the conductive member of the speaker module shown in Fig. 8;
  • FIG. 16 is a schematic structural diagram of speaker modules in other embodiments of the present application.
  • Fig. 17 is a schematic cross-sectional view of the speaker module shown in Fig. 8;
  • Fig. 18 is a schematic structural diagram of a speaker module according to some other embodiments of the present application.
  • Fig. 19 is a schematic cross-sectional structure diagram of the second speaker unit shown in Fig. 18;
  • FIG. 20 is a schematic structural diagram of a second diaphragm group of the second speaker unit shown in FIG. 19;
  • FIG. 21 is a schematic structural view of the reed of the second speaker unit shown in FIG. 19;
  • Fig. 22 is a schematic structural diagram of the second magnetic circuit system of the second speaker unit shown in Fig. 19;
  • FIG. 23 is a schematic diagram of speaker modules in some other embodiments of the present application.
  • 4a the first speaker unit; 4a21, the first diaphragm group; 4a211, the first connecting part; 4a212, the first ring; 4a213, the first dome; 4a22, the first voice coil; 4a23, the first magnetic circuit system ;4a23a, magnetic gap; 4a231, edge magnetic part; 4a232, first central magnetic part; 4a233, second central magnetic part; 4a234, magnetic yoke; ;4a2413, annular groove; 4a25, terminal; 4a251, negative terminal; 4a2511, conductive extension; 4a252, positive terminal; 4a2521, conductive terminal;
  • 4b the second speaker unit; 4b1, the protective shell; 4b1a, the first shell part; 4b1b, the second shell part; 4b11, the sound channel; 4b21, the second diaphragm group; 4b21a, the second connection part; Two folding rings; 4b21c, second ball top; 4b22, reed; 4b221, first piece; 4b222, second piece; 4b223, connecting piece; 4b224, support body; 4b23, transmission rod; 4b24, second piece Magnetic circuit system; 4b241, magnetic conduction part; 4b242, magnet part; 4b25, second voice coil; 4b3, avoidance channel; 4b41, first electrode layer; 4b42, second electrode layer; 4b43, piezoelectric body;
  • 4c bracket; 4c1, support plate; 4c11, first sound transmission channel; 4c2, connecting part; 4c21, sub-part; 4c211, card hole; aisle;
  • Wireless charging module 51. Power receiving coil; 52. AC/DC conversion component; 53. Charging control component; 6. Wireless communication module;
  • Wireless charging base 201. Charging coil; 202. DC/AC conversion component; 203. Power interface.
  • first and second are used for description purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of indicated technical features.
  • a feature defined as “first” and “second” may explicitly or implicitly include one or more of these features.
  • connection can be detachable
  • connection can also be non-detachable connection; it can be a direct connection or an indirect connection through an intermediary.
  • the term “comprising”, “comprising” or any other variant thereof is intended to cover a non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements, but also includes Including other elements not expressly listed, or also including elements inherent in such process, method, article or apparatus.
  • an element defined by the phrase “comprising a " does not preclude the presence of additional identical elements in the process, method, article, or apparatus comprising that element.
  • an element defined by the phrase “comprising a " does not preclude the presence of additional identical elements in the process, method, article, or apparatus comprising that element.
  • the present application provides an earphone 100 that can be used in conjunction with electronic products such as mobile phones, tablet computers, and notebook computers to receive sound information provided by the electronic products and output them to users. Through the cooperative use of the earphone 100 and the electronic product, the sound of the electronic product can be prevented from disturbing others.
  • the earphone 100 can be a wireless earphone or a wired earphone.
  • FIG. 1 is a schematic structural diagram of an earphone 100 provided by some embodiments of the present application
  • FIG. 2 is a schematic diagram of an exploded structure of the earphone 100 shown in FIG. 1
  • the earphone 100 shown in FIG. 1 and FIG. 2 is described by taking a wireless earphone as an example.
  • the earphone 100 may include a housing 1 , a circuit board 2 , a battery 3 , a wireless charging module 5 , a wireless communication module 6 and a speaker module 4 .
  • FIG. 1, FIG. 2 and the following related drawings only schematically show some components included in the earphone 100, and the actual shape, actual size, actual position and actual configuration of these components are not affected by FIG. 1 and FIG. 2. and the definitions of the figures below.
  • the wired earphone may not include the battery 3 , the wireless communication module 6 and the wireless charging module 5 .
  • the housing 1 can be used as a carrier of the functional devices in the earphone 100 to protect the functional devices located in the accommodating space 10 of the housing 1 . Moreover, when the user wears the earphone 100 , the earphone 100 is in contact with the user's ear through the casing 1 . Therefore, in order to improve the comfort of wearing the earphone 100 for the user, the outer shell 1 can be adapted to the shape of the ear of the human body.
  • the housing 1 can have certain properties such as wear resistance, corrosion resistance and scratch resistance, or a layer of functional material for wear resistance, corrosion resistance and scratch resistance can be coated on the outer surface of the housing 1 .
  • the shell 1 can be used as a structural whole, that is to say, the shell 1 can be formed in one piece, and the integrally formed shell 1 has higher structural strength.
  • the housing 1 can also be formed by assembling a plurality of parts. Please continue to refer to FIG. 1 and FIG. 2 , in this embodiment, the housing 1 may include a front housing 11 and a rear housing 12 . Wherein, the front shell 11 faces the human ear when the earphone 100 is in use, and the rear shell 12 faces away from the human ear when the earphone 100 is in use.
  • the shell 1 is formed by assembling the front shell 11 and the rear shell 12, which can facilitate the processing of the front shell 11 and the rear shell 12 respectively, which is conducive to simplifying the mold structure of the front shell 11 and the rear shell 12, thereby reducing the cost of the front shell 11 and the rear shell 12. Forming difficulty, thereby reducing the difficulty of processing and manufacturing the shell 1 .
  • the front shell 11 can be fixedly connected to the rear shell 12 through a buckle.
  • the front shell 11 can also be connected to the rear shell 12 by screws.
  • the front case 11 may also be fixedly connected to the rear case 12 by glue or adhesive tape.
  • the material of the front shell 11 includes but not limited to hard plastic, metal, and a combination of plastic and metal. In order to reduce the weight of the earphone 100, the material of the front shell 11 can be selected as hard plastic.
  • a first accommodating cavity 101 is formed in the front shell 11 , and a side of the first accommodating cavity 101 adjacent to the rear shell 12 is open.
  • a sound outlet hole 110 communicating with the first accommodating chamber 101 is formed on the front shell 11 , and the sound of the earphone 100 can be conducted to the outside of the earphone 100 through the sound outlet hole 110 .
  • the front case 11 may include a main body 111 and an extension 112 .
  • the extension part 112 can be located on one side of the main part 111 and extend away from the main part 111 .
  • the above-mentioned first accommodation chamber 101 may be formed in the main body portion 111
  • the above-mentioned sound outlet hole 110 may be formed in the extension portion 112 .
  • the front shell 11 may not include the extension portion 112 , but the sound hole 110 is directly opened on the wall of the main body portion 111 .
  • the earphone 100 can also be provided with a contact sleeve 13, which can be used to contact the user's ear.
  • the contact sleeve 13 can be disposed on the outer peripheral surface of the extension part 112 , and the shape of the contact sleeve 13 can be similar to that of the human ear canal, so as to improve the adaptability of wearing the earphone 100 .
  • the contact sleeve 13 can be made of flexible materials such as silicone and rubber, so as to improve the comfort of the user wearing the earphone 100 .
  • a limiting rib 1121 can be formed on the outer peripheral surface of the extension part 112, so that when the contact sleeve 13 is surrounded by the outer peripheral surface of the extension part 112, the limiting rib 1121 can abut against the contact sleeve 13, thereby To limit the position of the contact sleeve 13 and reduce the probability of the contact sleeve 13 naturally falling off from the extension portion 112 .
  • the earphone 100 may not include the contact sleeve 13 .
  • the material of the rear case 12 may be the same as that of the above-mentioned front case 11 . Certainly, the material of the rear case 12 may also be different from the material of the above-mentioned front case 11 . In order to realize the lightweight of the earphone 100, the material of the rear shell 12 can be selected as hard plastic.
  • the rear shell 12 may include a cover body 121 and a rod body 122 .
  • the cover body 121 can be connected with the front shell 11 , and the rod body 122 can be disposed on a side of the cover body 121 away from the front shell 11 .
  • a second accommodating cavity 102 may be formed in the cover body 121, and one side of the second accommodating cavity 102 adjacent to the front shell 11 is open, so that the second accommodating cavity 102 can communicate with the first accommodating cavity 101, and the second accommodating cavity 102 Together with the first accommodating chamber 101 , the accommodating space 10 of the housing 1 can be formed.
  • the cover body 121 and the rod body 122 may be of an integral structure, that is to say, the cover body 121 and the rod body 122 are of an integral structure. In this way, the manufacturing process of the rear shell 12 can be simplified, and the connection strength between the cover body 121 and the rod body 122 can be improved at the same time.
  • the present application is not limited thereto, and the cover body 121 and the rod body 122 may also be formed by assembling, and the cover body 121 and the rod body 122 are connected by gluing, clamping, screwing or welding.
  • the circuit board 2 can be accommodated in the accommodation space 10 . Specifically, the circuit board 2 can be installed in the second accommodation cavity 102 .
  • the installation method of the circuit board 2 in the housing 1 includes but not limited to clamping, screwing or gluing.
  • the circuit board 2 is used to integrate a control chip, etc., and the control chip can be, for example, an application processor (application processor, AP), a double data rate synchronous dynamic random access memory (double data rate, DDR) and a universal memory (universal flash storage, UFS) etc.
  • the circuit board 2 is electrically connected to functional devices such as the wireless communication module 6 , the wireless charging module 5 , the battery 3 and the speaker module 4 , so as to realize signal control and data signal processing among different functional devices.
  • the circuit board 2 can be a rigid circuit board, a flexible circuit board, or a rigid-flex circuit board.
  • the circuit board 22 may be an FR-medium board, a Rogers (Rogers) dielectric board, or a mixed FR- and Rogers dielectric board, and so on.
  • FR- is a code name of a flame-resistant material grade
  • the Rogers dielectric board is a high-frequency board.
  • the wireless communication module 6 can be integrated on the circuit board 2 .
  • the wireless communication module 6 can be soldered and fixed on the circuit board 2 .
  • the wireless communication module 6 can be a bluetooth, infrared or wifi module.
  • the earphone 100 can perform wireless signal interaction with the electronic product through the wireless communication module 6, so as to receive the sound information of the electronic product.
  • the battery 3 is used to provide power to the functional devices in the earphone 100 such as the circuit board 2 , the wireless communication module 6 , the speaker module 4 and the like.
  • the battery 3 may include but not limited to nickel-cadmium batteries, nickel-metal hydride batteries, lithium batteries or other types of batteries. Moreover, the number of batteries 3 in the embodiment of the present application may be multiple or one.
  • the shape of the battery 3 includes, but is not limited to, a cuboid, a cylinder, or a truncated cone.
  • the battery 3 may be located in the second receiving cavity 102 , and the battery 3 is located on a side of the circuit board 2 close to the first receiving cavity 101 . In other examples, the battery 3 may also be located on a side of the circuit board 2 away from the first receiving cavity 101 .
  • the installation method of the battery 3 in the casing 1 includes but not limited to clamping, screwing or gluing.
  • the wireless charging module 5 can be integrated on the circuit board 2 and wirelessly charge the battery 3 in the earphone 100 .
  • FIG. 3 is a schematic diagram of the charging connection between the earphone 100 and the wireless charging base 200 shown in FIGS. 1-2 .
  • the wireless charging module 5 includes: a power receiving coil 51 , an AC/DC conversion component 52 and a charging control component 53 .
  • the power receiving coil 51 , the AC/DC conversion part 52 and the charging control part 53 are all electrically connected to the circuit board 2 .
  • the power receiving coil 51 can receive the wireless charging input of the wireless charging base 200 of the earphone 100 .
  • the present application is not limited thereto, and the power receiving coil 51 may also receive wireless charging input from other terminals supporting wireless charging.
  • the power receiving coil 51 is a receiving (Rx) coil.
  • the AC/DC conversion component 52 may be an Rx chip.
  • the wireless charging base 200 includes a power interface 203 , a charging coil 201 and a DC to AC conversion component 202 .
  • the charging coil 201 may be a transmitting (Tx) coil.
  • the DC to AC conversion component 202 may be a Tx chip.
  • the wireless charging base 200 is used as the transmitter of the wireless charging signal
  • the earphone 100 is used as the receiving end of the wireless charging signal
  • the wireless charging base 200 wirelessly charges the earphone 100 .
  • the direct current and alternating current conversion part 202 of the wireless charging base 200 can receive the direct current signal input by the power interface 203 .
  • the direct current and alternating current conversion component 202 can convert the direct current signal into an alternating current signal, and then input the alternating current signal to the charging coil 201 .
  • the charging coil 201 can generate an alternating electromagnetic field in response to the alternating current signal.
  • the power receiving coil 51 of the earphone 100 is coupled to the charging coil 201 .
  • the receiving coil 51 (that is, the Rx coil) induces the alternating electromagnetic field emitted by the charging coil 201 (that is, the Tx coil) to generate an AC signal, and inputs the AC signal to the AC/DC conversion component 52 .
  • the AC/DC conversion unit 52 can rectify the AC signal into a DC signal, and input the DC signal to the charging control unit 53 .
  • the charging control unit 53 can charge the battery 3 according to the direct current signal.
  • the earphone 100 may also support wired charging.
  • the housing 1 is provided with a charging interface
  • the charging interface is electrically connected to the circuit board 2
  • the charging interface can be connected to a wired charger (also called a power adapter), and receives the wired charger as the charging input of the battery 3 .
  • the above-mentioned charging interface may be a universal serial bus (universal serial bus, USB) interface.
  • the speaker module 4 can be installed in the accommodating space 10 , and the speaker module 4 is located on a side of the battery 3 close to the sound outlet 110 . Specifically, the speaker module 4 can be installed in the first accommodation cavity 101 .
  • the assembly method between the loudspeaker module 4 and the housing 1 includes but not limited to clamping, screwing or gluing.
  • the speaker module 4 is electrically connected with the circuit board 2 to obtain audio electrical signals such as music and voice, and the speaker module 4 can convert the audio electrical signal into a sound signal to support audio output.
  • the speaker module 4 used in the earphone 100 of the above embodiment is a dynamic woofer. Although this can make the earphone 100 have a low-frequency sound range performance, and make the cost of the earphone 100 cheap.
  • the vibration mass of the dynamic woofer is large and the transient characteristics are not good.
  • the asymmetric distribution of mass distribution, membrane compliance and BL electromagnetic driving force will produce different degrees of rocking vibration and split vibration of different frequencies, resulting in high The frequency response produces severe peaks and valleys, which cannot achieve high-frequency sound range performance, resulting in poor audio output performance of the earphone 100 and poor sound effects.
  • FIG. 4 is a cross-sectional view of an earphone 100 provided by another embodiment of the present application.
  • the speaker module 4 includes a first speaker unit 4a and a second speaker unit 4b.
  • the first loudspeaker unit 4a and the second loudspeaker unit 4b are spaced apart in the housing 1 . Both the first speaker unit 4 a and the second speaker unit 4 b emit sound toward the sound outlet 110 .
  • the sound emission frequency of the second speaker unit 4b is higher than the sound emission frequency of the first speaker unit 4a.
  • the first speaker unit 4a can be used as a woofer.
  • the first speaker unit 4a may be a dynamic woofer.
  • the second speaker unit 4b may be a tweeter.
  • the second speaker unit 4b may be a moving iron speaker unit, a planar voice coil speaker unit or a piezoelectric ceramic speaker unit.
  • the first speaker unit 4a is used as a woofer
  • the second speaker unit 4b is used as a tweeter, so that the earphone 100 can take into account the expressiveness of the low-frequency range and the high-frequency range, and improve the performance of the speaker module. 4 sound effects.
  • FIG. 5 is a schematic structural diagram of the first speaker unit 4a of the earphone shown in FIG. 4;
  • FIG. 6 is a schematic cross-sectional structural schematic diagram of the first speaker unit 4a shown in FIG.
  • the first speaker unit 4a includes a first diaphragm group 4a21, a first voice coil 4a22, a first magnetic circuit system 4a23, a frame 4a24 and a connection terminal 4a25.
  • FIG. 5 and Fig. 6 and the following related drawings only schematically show some components included in the first speaker unit 4a, and the actual size, actual position and actual configuration of these components are not affected by Fig. 5 and Fig. 6 . and the definitions of the figures below.
  • the first loudspeaker unit 4a is fixed in the casing 1 by means of the frame 4a24, and the assembly method between the frame 4a24 and the casing 1 includes but not limited to clamping, screwing or gluing.
  • the basin frame 4a24 is used as a "supporting frame" of the first speaker unit 4a for supporting the first diaphragm group 4a21, the first voice coil 4a22 and the first magnetic circuit system 4a23.
  • the material of the basin frame 4a24 includes but not limited to metal, plastic and a combination of metal and plastic.
  • the pot frame 4a24 can be a one-piece molding, that is to say, the pot frame 4a24 is an integral structure. In this way, it is beneficial to improve the connection strength of the frame 4a24.
  • the basin frame 4a24 can also be formed by assembling different parts, and multiple different parts can be connected by clamping, screwing, gluing or welding.
  • the inner peripheral surface of the basin frame 4a24 is provided with an annular groove 4a2413 that is sunken away from the central axis of the basin frame 4a24, and the annular groove 4a2413 extends in a ring along the circumference of the basin frame 4a24.
  • 4a2413 penetrates to the end surface of the open end of the basin frame 4a24 , that is, the end surface facing the sound hole 110 .
  • the outer edge of the first diaphragm group 4a21 is received in the annular groove 4a2413 and fixed on the wall surface of the annular groove 4a2413 facing the sound hole 110 .
  • the setting of the annular groove 4a2413 can increase the volume of the inner space of the basin frame 4a24, which is conducive to setting the size of the first diaphragm group 4a21 larger, which in turn is conducive to increasing the size of the first diaphragm group 4a21.
  • the effective vibration area improves the sound output effect of the first speaker unit 4a.
  • the effective vibration area of the diaphragm set referred to in this article refers to the area of the part of the diaphragm set that can push air movement.
  • the outer surface of the first diaphragm group 4 a 21 faces the sound outlet 110 , so that the first speaker unit 4 a can emit sound toward the sound outlet 110 .
  • the first speaker unit 4a can divide the casing 1 into a front chamber C1 and a rear chamber C2 by means of the first diaphragm group 4a21 (combined with FIG. 4 ).
  • the first voice coil 4a22, the first magnetic circuit system 4a23 and the frame 4a24 are located in the rear cavity C2.
  • the sound hole 110 communicates with the front cavity C1.
  • the first speaker unit 4a may further include a casing.
  • the first speaker unit 4a is fixed inside the casing 1 by means of a casing.
  • the basin frame 4a24 is fixed on the inner wall of the housing.
  • the first diaphragm group 4 a 21 divides the housing into a front chamber and a rear chamber, and the front chamber of the housing communicates with the sound outlet 110 .
  • the "outer surface" of the first diaphragm group 4a21 refers to the side surface of the first diaphragm group 4a21 away from the inner side of the frame 4a24, and the inner surface of the first diaphragm group 4a21 is in contact with the first diaphragm group.
  • the outer surfaces of the group 4a21 face each other.
  • the first diaphragm group 4a21 includes: a first connecting portion 4a211 , a first ring 4a212 and a first dome 4a213 surrounded by the first ring 4a212 .
  • the first connecting portion 4a211 is in the shape of an annular sheet.
  • the first connecting portion 4a211 is in the form of a circular ring or a rectangular ring.
  • the first connecting portion 4a211 is stacked on the wall of the annular groove 4a2413 facing the sound hole 110 , so that the first diaphragm group 4a21 is connected to the frame 4a24 through the first connecting portion 4a211 .
  • the connection manners of the first connecting portion 4a211 and the annular groove 4a2413 include but not limited to gluing, clamping, welding or screwing.
  • the outer peripheral edge of the first ring 4a212 is connected with the inner peripheral edge of the first connecting part 4a211.
  • the cross-sectional shape of the first ring 4a212 is arc-shaped or approximately arc-shaped.
  • the extension track of the first ring 4a212 along the circumference of the frame 4a24 is circular or rectangular.
  • the first ring 4a212 protrudes toward the direction of the sound outlet 110 .
  • the first edge ring 4a212 can be deformed when subjected to an external force, so that the first dome 4a213 can vibrate along the axial direction of the first diaphragm group 4a21 relative to the first connecting portion 4a211.
  • the first ring 4 a 212 may also protrude in a direction away from the sound outlet 110 .
  • the first diaphragm group 4a21 is a one-piece molding. That is to say, the first connecting part 4a211, the first ring 4a212 and the first spherical top 4a213 are an integral structure. Such setting is beneficial to improve the structural strength of the first diaphragm group 4a21, and facilitates the processing and manufacturing of the first diaphragm group 4a21.
  • the present application is not limited thereto, the first connecting part 4a211, the first ring 4a212 and the first dome 4a213 can also be independent molded parts, and the first connecting part 4a211 and the first ring 4a212 can be connected by glue , the first ring 4a212 and the first dome 4a213 can be connected by glue.
  • the material of the first diaphragm group 4a21 includes but not limited to metal, plastic, plant fiber and animal fiber.
  • the first voice coil 4a22 is connected to the inner surface of the first dome 4a213 (ie, the side surface away from the sound hole 110 ).
  • the connection method between the first voice coil 4a22 and the first dome 4a213 includes but not limited to glue.
  • the first magnetic circuit system 4a23 is fixed in the frame 4a24, the first magnetic circuit system 4a23 has an annular magnetic gap 4a23a, and the end of the first voice coil 4a22 away from the first diaphragm group 4a21 can extend into the magnetic gap 4a23a, so that The first magnetic circuit system 4a23 can cooperate with the first voice coil 4a22 to drive the first diaphragm group 4a21 to vibrate synchronously.
  • the first voice coil 4a22 after the first voice coil 4a22 is energized, an induced magnetic field can be generated, and the first magnetic circuit system 4a23 can respond to the induced magnetic field, so that the first voice coil 4a22 is displaced by the magnetic force of the first magnetic circuit system 4a23 , so as to drive the first diaphragm group 4a21 to generate vibration, push the air in the front cavity C1 to vibrate to form sound, and the sound is output from the sound outlet 110 .
  • the first magnetic circuit system 4a23 includes: a side magnetic part 4a231 , a first central magnetic part 4a232 and a second central magnetic part 4a233 .
  • the side magnetic part 4a231 is located on the outer periphery of the first central magnetic part 4a232 to define a magnetic gap 4a23a with the first central magnetic part 4a232.
  • the magnetization directions of the side magnetic part 4a231 and the first central magnetic part 4a232 are opposite, so that the side magnetic part 4a231 and the first central magnetic part 4a232 can form a magnetic circuit for driving the first voice coil 4a22 to move.
  • the magnetization direction of the side magnetic part 4a231 is from north pole (N) to south pole (S), and the first central magnetic part 4a232 The direction of magnetization is from South Pole (S) to North Pole (N).
  • the side magnetic portion 4a231 may be formed in a ring shape.
  • the side magnetic portion 4a231 is formed in a circular ring or a rectangular ring.
  • the side magnetic portion 4a231 may also be non-circular, and there are multiple side magnetic portions 4a231 , and the plurality of side magnetic portions 4a231 are spaced apart in the circumferential direction of the first central magnetic portion 4a232 .
  • the second central magnetic part 4a233 blocks one end of the side magnetic part 4a231 away from the first diaphragm group 4a21, and the first central magnetic part 4a232 and the second central magnetic part 4a233 are stacked.
  • the second central magnetic part 4a233 and the side magnetic part 4a231 can be integrally formed. That is to say, the second central magnetic part 4a233 and the side magnetic part 4a231 can be a structurally integrated body.
  • the present application is not limited thereto, and the second central magnetic part 4a233 and the side magnetic part 4a231 can also be connected by means of gluing, clamping, screwing and the like.
  • the second central magnetic part 4a233 may be a piece of magnetically permeable material. In this way, the second central magnetic part 4a233 can be used to restrict the leakage of the magnetic force lines and increase the magnetic induction of the first magnetic circuit system 4a23.
  • the present application is not limited thereto, and in some other examples, the second central magnetic part 4a233 may be a magnet.
  • the magnet is a magnet or a magnetic steel.
  • both the side magnetic part 4a231 and the first central magnetic part 4a232 may be magnets.
  • both the side magnetic part 4a231 and the first central magnetic part 4a232 are magnets or magnetic steel.
  • the present application is not limited thereto.
  • one of the side magnetic portion 4a231 and the first central magnetic portion 4a232 is a magnet, and the other is a magnetically permeable material.
  • the first magnetic circuit system 4a23 also includes a magnetically permeable yoke 4a234, which is arranged on the side of the first central magnetic part 4a232 facing the first diaphragm group 4a21, for It is used to restrict the leakage of the magnetic field lines, thereby improving the driving force of the first diaphragm group 4a21.
  • the outer peripheral surface of the magnetic yoke 4a234 is flush with the outer peripheral surface of the first central magnetic part 4a232 in the axial direction of the first magnetic circuit system 4a23. In this way, it is beneficial to further improve the constraint effect of the magnetic yoke 4a234 on the magnetic force lines, increase the magnetic induction intensity of the first magnetic circuit system 4a23, and the magnetic yoke 4a234 will not affect the magnetic gap 4a23a, which is conducive to improving the first magnetic circuit system 4a23 Compatibility with the first voice coil 4a22.
  • the connection terminal 4a25 is arranged on the basin frame 4a24 .
  • the connecting terminal 4a25 is located on the outer side of the basin frame 4a24.
  • the connection terminal 4a25 may be protruded from the outer peripheral surface of the basin frame 4a24.
  • a groove may be formed on the outer peripheral surface of the basin frame 4a24, and the connection terminal 4a25 may be located in the groove.
  • the arrangement of the connection terminal 4a25 those skilled in the art can design according to actual needs, as long as the connection terminal 4a25 is located outside the basin frame 4a24.
  • connection terminals 4a25 include a positive connection terminal 4a252 and a negative connection terminal 4a251.
  • the positive connection terminal 4a252 is provided with a conductive connection part located in the frame 4a24.
  • the conductive connection part can be electrically connected with the positive lead wire of the first voice coil 4a22.
  • the positive lead wire of the first voice coil 4a22 may be connected to the conductive connection part by welding.
  • the negative terminal 4a251 is provided with a conductive extension located inside the frame 4a24.
  • the conductive extension may be electrically connected to the negative lead of the first voice coil 4a22.
  • the negative electrode lead of the first voice coil 4a22 may be connected to the conductive extension by welding.
  • the positive and negative lead wires of the first voice coil 4a22 are relatively thin, their structural strength is relatively weak, and they are easily scratched and damaged.
  • the positive electrode lead wire of a voice coil 4a22 is electrically connected, the length of the positive electrode lead wire can be shortened, and the problem of scratching and damage between the positive electrode lead wire and the frame 4a24 is avoided;
  • the electrical connection of the lead wires can shorten the length of the negative electrode lead wires, avoid scratching and damage between the negative electrode lead wires and the frame 4a24, and help improve the reliability of the first voice coil 4a22.
  • the first speaker unit 4a is electrically connected to the circuit board 2 through the positive terminal 4a252 and the negative terminal 4a251, so as to obtain audio electrical signals such as music and voice.
  • Figure 7 is a partial structural schematic diagram of the earphone 100 provided by some other embodiments of this application; A schematic structural diagram of the speaker module 4 of the earphone 100 .
  • the speaker module 4 further includes a bracket 4c.
  • the second loudspeaker unit 4b can be connected with the basin frame 4a24 of the first loudspeaker unit 4b by means of the bracket 4c, thereby realizing the fixed connection between the first loudspeaker unit 4a and the second loudspeaker unit 4b.
  • the group 4 is installed in the casing 1 as a whole, so that the first speaker unit 4a and the second speaker unit 4b need not be installed in the casing 1 respectively, the installation of the speaker module 4 can be simplified, and the speaker module 4 can also be installed Compactness.
  • FIG. 9 is a schematic structural diagram of the bracket 4c in the speaker module 4 shown in FIG. 8 .
  • the bracket 4c includes a support plate 4c1 and a connecting portion 4c2.
  • the support plate 4c1 is located on one side of the axial direction of the first speaker unit 4a, and the support plate 4c1 is opposite to the outer surface of the first diaphragm group 4a21 of the first speaker unit 4a, and the second speaker unit 4b is supported on the side of the support plate 4c1.
  • One side of the first speaker unit 4 a that is, the second speaker unit 4 b is supported on a side of the support plate 4 c1 facing the sound hole 110 . Therefore, the support plate 4c1 can be used to support the second speaker unit 4b, so as to facilitate the installation of the second speaker unit 4b.
  • the connection manner between the second speaker unit 4b and the support plate 4c1 includes but not limited to gluing, clamping, welding or screwing.
  • the support plate 4c1 and the second speaker unit 4b In order to prevent the support plate 4c1 and the second speaker unit 4b from blocking the sound transmission generated by the vibration of the first diaphragm group 4a21 and affect the sound effect of the first speaker unit 4a, please continue to refer to FIG. 9, and in conjunction with FIG. 8, the support plate The first sound transmission channel 4c11 is formed on 4c1, and the second speaker unit 4b does not cover the first sound transmission channel 4c11, so that the sound emitted by the vibration of the first diaphragm group 4a21 pushing the air to vibrate can pass through the first sound transmission channel 4c11 toward The sound hole 110 transmits.
  • the number of the first sound transmission channel 4c11 may be multiple or one.
  • the support plate 4c1 is formed in a ring shape to define a first sound transmission channel 4c11
  • the second speaker unit 4b is formed in a ring shape extending along the circumference of the support plate 4c1 to define an escape channel 4b3, and the avoidance channel 4b3 is connected to the first sound transmission channel 4b3.
  • the sound transmission channel 4c11 is connected.
  • the present application is not limited thereto.
  • the second speaker unit 4b may not be annular, and the second speaker unit 4b may cover a part of the support plate 4c1.
  • the second speaker unit 4b may be disposed away from the center of the support plate 4c1.
  • the outer peripheral contour of the support plate 4c1 is circular, rectangular, triangular, trapezoidal or irregular.
  • the material of the support plate 4c1 includes but not limited to metal, plastic and a combination of metal and plastic.
  • connection portion 4c2 is connected between the peripheral edge of the support plate 4c1 and the peripheral wall of the frame 4a24, so that the second speaker unit 4b is fixed to the frame 4a24 by means of the connecting portion 4c2.
  • the connection part 4c2 and the support plate 4c1 can be integrally formed, that is to say, the connection part 4c2 and the support plate 4c1 can be an integral structure, which is conducive to improving the connection strength between the connection part 4c2 and the support plate 4c1 .
  • the connecting portion 4c2 may also be connected to the support plate 4c1 by means of gluing, clamping, welding or screwing.
  • the connection methods of the connecting portion 4c2 and the frame 4a24 include but not limited to clamping, gluing, welding and screwing.
  • the material of the connecting portion 4c2 includes but not limited to metal, plastic and a combination of metal and plastic.
  • the connecting portion 4c2 includes at least two sub-parts 4c21, at least two sub-parts 4c21 are spaced apart in the circumferential direction of the support plate 4c1, and each sub-part is connected between the outer peripheral edge of the support plate 4c1 and the basin frame Between the surrounding walls of 4a24.
  • each sub-section 4c21 extends in a plate shape in the circumferential direction of the support plate 4c1 .
  • Arranging like this while reducing the volume and weight of the bracket 4c, also helps to improve the structural strength of the sub-part 4c21, thereby improving the connection reliability between the bracket 4c and the basin frame 4a24, and then improving the support of the bracket 4c to the first speaker unit 4a. And the fixed reliability of the second speaker unit 4b.
  • each sub-part 4c21 is formed with a clamping hole 4c211, and a clamping rib (not shown in the figure) is formed on the outer peripheral surface of the basin frame 4a24, and the clamping rib is clamped into the clamping hole 4c211, thereby realizing The detachable connection between the support 4c and the basin frame 4a24.
  • ribs can also be formed on each sub-part 4c21, and holes can be formed on the outer peripheral surface of the basin frame 4a24, and the ribs can be snapped into the holes. The detachable connection between the support 4c and the basin frame 4a24.
  • the sub-part 4c21 is connected between the outer peripheral edge of the support plate 4c1 and the peripheral wall of the basin frame 4a24.
  • a sound transmission channel 4c23 can be formed between two adjacent sub-parts 4c21, so that the sound produced by the vibration of the first diaphragm group 4a21 can be transmitted through the sound transmission channel 4c23, and the sound generation effect of the first speaker unit 4a can be improved.
  • each sub-part 4c21 is located on the first diaphragm
  • a second sound transmission channel 4c24 is formed on the part between the group 4a21 and the support plate 4c1.
  • the present application is not limited thereto, and the second sound transmission channel 4c24 may not be provided on the subsection 4c21.
  • FIG. 10 is a schematic diagram of another angle of the speaker module 4 shown in FIG. 8 .
  • a part of the orthographic projection of the sound transmission channel 4c23 is located within the outer contour of the orthographic projection of the first diaphragm group 4a21.
  • the second sound transmission channel 4c24 can be opposite to the first diaphragm group 4a21 in the axial direction of the first speaker unit 4a, which is more conducive to the first speaker unit 4a.
  • the sound output of the first speaker unit 4a ensures the sound output effect of the first speaker unit 4a.
  • FIG. 11 is a schematic structural diagram of a bracket 4c according to another embodiment of the present application.
  • the difference between the structure of the bracket 4c shown in Figure 11 and the structure of the bracket 4c shown in Figure 9 is that the second sound transmission channel 4c24 is no longer arranged on each sub-section 4c21, and each sub-section 4c21 is rod-shaped, so that , can reduce the volume and weight of the sub-part 4c21, thereby reducing the weight of the speaker module 4 and the volume of the speaker module 4, while also helping to increase the area of the sound transmission channel 4c23, improving the first speaker module 4a sound effect.
  • FIG. 12a is a schematic structural diagram of a bracket 4c according to some other embodiments of the present application.
  • the connecting portion 4c2 may not include a plurality of spaced sub-parts, and the connecting portion 4c2 is a closed ring extending in the entire circumferential direction of the frame 4a24.
  • Such setting helps to improve the structural strength of the connecting portion 4c2, thereby improving the connection reliability between the bracket 4c and the basin frame 4a24, and further improving the fixing reliability of the bracket 4c to the first speaker unit 4a and the second speaker unit 4b.
  • a locking hole 4c211 is formed on the connecting portion 4c2.
  • a rib (not shown in the figure) is formed on the outer peripheral surface of the frame 4a24, and the rib is engaged in the hole 4c211, so as to realize the detachable connection between the bracket 4c and the frame 4a24.
  • ribs can also be formed on the connecting portion 4c2, and holes can be formed on the outer peripheral surface of the basin frame 4a24, and the ribs can be snapped into the holes. The detachable connection of 4c and basin frame 4a24.
  • the connecting part 4c2 is located in the first diaphragm group A second sound transmission channel 4c24 is formed on the part between 4a21 and the support plate 4c1.
  • the present application is not limited thereto, and the second sound transmission channel 4c24 may not be provided on the connecting portion 4c2.
  • the orthographic projection of the second sound transmission channel 4c24 is located in the first diaphragm group In this way, the second sound transmission channel 4c24 can be opposite to the first diaphragm group 4a21 in the axial direction of the first speaker unit 4a, which is more conducive to the exit of the first speaker unit 4a. sound, to ensure the sound effect of the first speaker unit 4a.
  • FIG. 12b is a schematic structural diagram of a bracket 4c according to some other embodiments of the present application.
  • the bracket 4c may not include a support plate 4c1, but may include a connecting portion 4c2, and the second speaker unit 4b may be supported on the end of the connecting portion 4c2 away from the first speaker unit 4a .
  • the bracket 4c has a conductive part, and the electrodes of the second speaker unit 4b are electrically connected to the terminal 4a25 through the conductive part.
  • the terminal 4a25 is electrically connected to the circuit board 2 .
  • the negative pole of the second speaker unit 4b is electrically connected to the negative terminal 4a251 through a conductive part; or, the positive pole of the second speaker unit 4b may be electrically connected to the positive terminal 4a252 through a conductive part;
  • the parts are two separated by insulation, the negative pole of the second speaker unit 4b is electrically connected to the negative terminal 4a251 by one of the conductive parts, and the positive pole of the second speaker unit 4b is electrically connected to the positive terminal 4a252 by the other conductive part.
  • the surface of the conductive part can be provided with an insulating protective layer.
  • the conductive The part can be electrically connected with the grounding point on the circuit board 2 to realize grounding.
  • the conductive part is at least composed of at least part of the connecting part 4c2.
  • the conductive part may only be composed of a part of the connecting part 4c2, the conductive part may only be composed of the connecting part 4c2, the conductive part may also be composed of a part of the connecting part 4c2 and a part of the supporting plate 4c2, and the conductive part may also be composed of a part of the connecting part 4c2.
  • the connection part 4c2 is formed by the entire support plate 4c2, and the conductive part can also be formed by the bracket 4c.
  • the earphone 100 by making the earphone 100 include the first speaker unit 4a and the second speaker unit 4b with different sound frequencies, it is beneficial to utilize the sound frequency difference between the first speaker unit 4a and the second speaker unit 4b , so that the earphone 100 has better sound expression in different frequency ranges, and improves the sound output effect of the speaker module.
  • the first speaker unit 4a and the second speaker unit 4b are connected as one, so that the speaker module
  • the group 4 is modularized, so that when the speaker module 4 is installed, the first speaker unit 4a and the second speaker unit 4b can be installed as a whole, thereby eliminating the need to install the first speaker unit 4a and the second speaker unit 4b to the earphone
  • the installation of the speaker module 4 can be simplified, and the structure of the speaker module 4 can also be compact.
  • the bracket 4c have a conductive part, and the electrodes of the second speaker unit 4b are electrically connected to the connection terminal 4a25 via the conductive part.
  • the electrical connection relationship between the first speaker unit 4a and the second speaker unit 4b can be simplified at least to a certain extent, at least one signal line for electrically connecting the first speaker unit 4a and the second speaker unit 4b can be omitted, simplifying the whole
  • the structure of the speaker module 4 is also convenient for the speaker module 4 to be electrically connected to the circuit board 2 via the terminal 4a25.
  • the conductive part is a part of the bracket 4c
  • the conductive part may be a metal insert
  • the rest of the bracket 4c may be a plastic part.
  • the bracket 4c is processed through an in-mold injection molding process. In this way, the processing technology is simple, and the structural strength of the bracket 4c is relatively high.
  • the bracket 4c defines a conductive portion, that is, the entire bracket 4c can conduct electricity, the negative pole of the second speaker unit 4b is electrically connected to the negative terminal 4a251 by means of the bracket 4c, and the bracket 4c is grounded .
  • Such setting can simplify the structure of the bracket 4c.
  • Fig. 13 is a schematic diagram of another angle of the speaker module 4 shown in Fig. 8;
  • Fig. 14a is a schematic view of the speaker module 4 shown in Fig. An enlarged view of the part circled at A;
  • Figure 14b is a cross-sectional view of the speaker module 4 shown in Figure 13 at the B-B line;
  • Figure 15 is a bracket 4c and a second speaker unit of the speaker module 4 shown in Figure 8 4b, a schematic diagram of connection between the terminal 4a25 and the conductive member 4d.
  • the peripheral wall of the basin frame 4a24 has a first opening 4a241, the negative terminal 4a251 is provided with a conductive extension 4a2511 located in the basin frame 4a24, the conductive extension 4a2511 extends to the first opening 4a241, the connecting portion 4c2 is facing the first opening 4a241 A portion is connected to the conductive extension 4a2511.
  • the portion of the connection portion 4c2 facing the first opening 4a241 is connected to the conductive extension portion 4a2511 by welding.
  • the negative terminal 4a251 does not need to be placed on the basin frame 4a24.
  • the outside protrudes too long, thereby avoiding that the negative terminal 4a251 protrudes from the basin frame 4a24 too long and interferes with the structure in the casing 1 .
  • the first opening 4a241 may not be provided on the peripheral wall of the basin frame 4a24, but the connecting portion 4c2 is directly electrically connected to the negative terminal 4a251.
  • the speaker module 4 further includes a conductive member 4d, and the positive electrode of the second speaker unit 4b is electrically connected to the positive terminal 4a252 through the conductive member 4d.
  • the conductive member 4d may be an enameled wire.
  • the present application is not limited thereto, and the conductive member 4d can also be a flexible printed circuit (FPC) or a wire, as long as the insulation distance between the bracket 4c and the conductive member 4d is ensured.
  • FPC flexible printed circuit
  • the peripheral wall of the pot frame 4a24 has a second opening 4a242, the positive terminal 4a252 is provided with a conductive connection part 4a2521 located in the pot frame 4a24, and the conductive member 4d extends into the pot frame 4a24 through the second opening 4a242 It is electrically connected with the conductive connection part 4a2521.
  • the positive terminal 4a252 does not need to be placed on the frame.
  • the outer side of 4a24 protrudes too long, thereby avoiding that the positive terminal 4a252 protrudes too long from the frame 4a24 and interferes with the structure in the casing 1 .
  • the second opening 4a242 may not be provided on the peripheral wall of the basin frame 4a24, but the conductive member 4d is directly electrically connected to the positive terminal 4a252.
  • FIG. 16 is a schematic structural diagram of a speaker module 4 according to other embodiments of the present application.
  • a part of the conductive part 4d is located on the side facing the outer surface of the connecting part 4c2.
  • the outer surface of the connecting part 4c2 A wiring groove 4c22 may be formed, and part of the conductive member 4d is located in the wiring groove 4c22.
  • the wiring groove 4c22 may not be provided on the outer surface of the connecting portion 4c2.
  • the outer surface of the connecting portion 4c2 refers to a surface of the connecting portion 4c2 on one side away from the central axis of the first speaker unit 4a.
  • the part of the conductive part 4d is located on the side facing the outer peripheral surface of the frame 4a24.
  • the frame 4a24 An escape groove can be formed on the outer peripheral surface of the , and part of the conductive member 4d is located in the avoidance groove.
  • the outer peripheral surface of the basin frame 4a24 may not be provided with escape grooves.
  • FIG. 17 is a schematic cross-sectional view of the speaker module 4 shown in FIG. 8 .
  • the negative electrode of the second speaker unit 4b is located at one end of the second speaker unit 4b adjacent to the support plate 4c1, and the negative electrode of the second speaker unit 4b is connected to the support plate 4c1 through a conductive glue 4e.
  • Such arrangement can facilitate the electrical connection between the negative electrode of the second speaker unit 4b and the support plate 4c1, and there is no need to additionally arrange structures such as signal wires for electrical connection between the two.
  • the positive pole of the second speaker unit 4b is located at the end of the second speaker unit 4b away from the support plate 4c1, and the positive pole of the second speaker unit 4b is connected to the conductive member 4d by conductive glue or welding. Such setting can facilitate the separation of the positive pole and the negative pole of the second speaker unit 4b, and can avoid the problem of short circuit at least to a certain extent.
  • the second speaker unit 4b is a piezoelectric ceramic speaker unit, and the piezoelectric ceramic speaker unit and the support plate 4c1 are stacked.
  • the connection method between the piezoelectric ceramic speaker unit and the support plate 4c1 includes but not limited to glue or welding.
  • the piezoelectric ceramic speaker unit is thin, small in size, and has good high-frequency sound effect.
  • the piezoelectric ceramic speaker unit includes a piezoelectric ceramic sheet 4bb.
  • the piezoelectric ceramic sheet 4bb includes a piezoelectric body 4b43, a first electrode layer 4b41, and a second electrode layer 4b42.
  • FIG. 17 and the related drawings below only schematically show some components included in the second speaker unit 4b, and the actual shape, actual size, actual position and actual configuration of these components are not affected by FIG. 17 and the following related drawings. Drawings are limited.
  • the first electrode layer 4b41 constitutes the negative electrode of the piezoelectric ceramic speaker unit
  • the second electrode layer 4b42 constitutes the positive electrode of the piezoelectric ceramic speaker unit.
  • the piezoelectric body 4b43 is sandwiched between the first electrode layer 4b41 and the second electrode layer 4b42.
  • the piezoelectric body 4b43 can be made of a ceramic material.
  • the material of the piezoelectric body 4b43 includes but not limited to lead zirconate, lead zirconate titanate, lead lanthanum zirconate titanate, barium titanate, tungsten bronze structure compound, solid solution of barium titanate and bismuth ferrite, etc.
  • the first electrode layer 4b41 and the second electrode layer 4b42 may be formed on the piezoelectric body 4b43 by evaporation, plating, sputtering, or the like.
  • the material of the first electrode layer 4b41 and the second electrode layer 4b42 may be metal.
  • the material of the first electrode layer 4b41 includes but not limited to gold, platinum, silver, copper, palladium, chromium, molybdenum, iron, tin, aluminum, nickel and the like.
  • the material of the second electrode layer 4b42 includes but not limited to gold, platinum, silver, copper, palladium, chromium, molybdenum, iron, tin, aluminum and nickel.
  • the material of the first electrode layer 4b41 and the material of the second electrode layer 4b42 may be the same or different.
  • the piezoelectric body 4b43 will be stretched and deformed, thereby pushing the air to vibrate and produce sound.
  • the first electrode layer 4b41 of the piezoelectric ceramic speaker unit is arranged on the side surface of the piezoelectric body 4b43 facing the support plate 4c1, and the conductive glue 4e can be passed between the first electrode layer 4b41 and the support plate 4c1 Electrically connected.
  • the second electrode layer 4b42 is disposed on the surface of the piezoelectric body 4b43 facing away from the support plate 4c1, and the second electrode layer 4b42 can be connected to the conductive member 4d by welding.
  • FIG. 18 is a schematic structural diagram of a speaker module 4 in some other embodiments of the present application.
  • the second speaker unit 4b is a moving iron speaker unit.
  • the second speaker unit 4b is vertically supported on a side surface of the supporting plate 4c1 facing the sound hole 110, and the second speaker unit 4b is located between the inner peripheral surface of the first sound transmission channel 4c11 and the outer peripheral surface of the supporting plate 4c1.
  • FIG. 19 is a schematic cross-sectional structure diagram of the second speaker unit 4 b shown in FIG. 18 .
  • the second speaker unit 4b may include: a protective shell 4b1, a second diaphragm group 4b21, a reed 4b22, a transmission rod 4b23, a second magnetic circuit system 4b24 and a second voice coil 4b25.
  • FIG. 19 and the related drawings below only schematically show some components included in the second speaker unit 4b, and the actual shape, actual size, actual position and actual configuration of these components are not affected by FIG. 19 and the following related drawings. Drawings are limited.
  • the protective shell 4b1 is used as a carrier of various components in the second speaker unit 4b, and is used to protect the second diaphragm group 4b21, the reed 4b22, the transmission rod 4b23, the second magnetic circuit system 4b24 and the second voice coil 4b25, etc.
  • the connection relationship between the protective shell 4b1 and the support plate 4c1 includes but not limited to clamping, gluing, welding or screwing.
  • a sound outlet channel 4b11 is formed on the side of the protective shell 4b1 adjacent to the sound outlet hole 110, and the sound of the second speaker unit 4b can be emitted from the sound outlet channel 4b11, so that the second speaker unit 4b and the first speaker unit 4a can both face The sound hole 110 emits sound.
  • the material of the protective shell 4b1 includes but not limited to metal, plastic, and a combination of metal and plastic.
  • the material of the protective shell 4b1 is plastic, which is low in cost and easy to form, which is beneficial to reduce the processing cost of the second speaker unit 4b.
  • the material of the protective shell 4b1 may be metal.
  • the protective shell 4b1 extends along the sound output direction of the sound output hole 110 , that is, the length direction of the protective shell 4b1 is in the same direction as the sound output direction of the sound output hole 110 .
  • the shape of the protective shell 4b1 may be a cuboid.
  • the protective shell 4b1 can be a structural whole, or can be formed by assembling a plurality of parts. In some embodiments, please continue to refer to FIG. 19 .
  • the protective case 4b1 includes a first case portion 4b1a and a second case portion 4b1b.
  • the first shell part 4b1a and the second shell part 4b1b are arranged in the radial direction of the first speaker unit 4a and connected by splicing.
  • the second diaphragm group 4b21 is disposed inside the protective shell 4b1 .
  • the second diaphragm group 4b21 is parallel to the axial direction of the first speaker unit 4a, so that the second diaphragm group 4b21 can be arranged vertically to the first diaphragm group 4a21. Therefore, at least to a certain extent, it is possible to prevent the sound output of the first speaker unit 4a from interfering with the vibration of the second diaphragm group 4b21.
  • the second speaker unit 4b divides the space in the protective shell 4b1 into a front cavity k1 and a rear cavity k2 by means of a second diaphragm group 4b21, so that the front cavity k1 and the rear cavity k2 are arranged in the radial direction of the first speaker unit 4a.
  • FIG. 20 is a schematic structural diagram of the second diaphragm group 4b21 of the second speaker unit 4b shown in FIG. 19 .
  • the second diaphragm group 4b21 includes a second connecting portion 4b21a, a second ring 4b21b and a second dome 4b21c.
  • the second connecting portion 4b21a is in the shape of an annular sheet, and the second connecting portion 4b21a is a rectangular ring with rounded corners.
  • a stepped portion 4b12 is provided on the inner peripheral surface of the protective shell 4b1 , and the second connecting portion 4b21a is stacked on the stepped portion 4b12 .
  • the connection relationship between the second connection part 4b21a and the stepped part 4b12 includes but not limited to glue.
  • the protective shell 4b1 may not be provided with the stepped portion 4b12, but the second connecting portion 4b21a may be provided in an annular cylindrical shape, and the second connecting portion 4b21a may be connected to the inner peripheral surface of the protective shell 4b1 .
  • the second ring 4b21b is disposed on the outer periphery of the second dome 4b21c and surrounded by the second connecting portion 4b21a.
  • the second ring 4b21b is in the shape of a rounded rectangular ring.
  • the second ring 4b21b is recessed toward the side close to the rear chamber K2 to form an arc or approximately arc-shaped cross-section, which can save the space of the front chamber K1.
  • the present application is not limited thereto.
  • the second ring 4b21b is recessed toward the side close to the front cavity K1 to form an arc or approximately arc cross section.
  • the second diaphragm group 4b21 may be a one-piece molding. That is to say, the second connecting portion 4b21a, the second ring 4b21b and the second spherical top 4b21c are integrally formed and connected as a whole. Such setting not only facilitates the simplification of the processing technology and reduces the production cost, but also improves the connection strength between the second connecting portion 4b21a and the second ring 4b21b and between the second ring 4b21b and the second spherical top 4b21c. Of course, the present application is not limited thereto. In other embodiments, the second connecting portion 4b21a, the second ring 4b21b and the second spherical top 4b21c can also be manufactured independently, and then connected by gluing or the like.
  • the reed 4b22 is disposed in the rear cavity K2 of the second speaker unit 4b for providing driving force for the vibration of the second diaphragm group 4b21 .
  • the material of the reed 4b22 includes but not limited to metal.
  • FIG. 21 is a schematic structural diagram of the reed 4b22 of the second speaker unit 4b shown in FIG. 19 .
  • the reed 4b22 includes a first piece 4b221 , a second piece 4b222 and a connecting piece 4b223 .
  • the first piece 4b221 is in the shape of a rectangular piece.
  • the first sheet 4b221 is arranged parallel to the second diaphragm group 4b21.
  • the second sheet body 4b222 is in the shape of a rectangular sheet.
  • the second sheet 4b222 is arranged parallel to the second diaphragm group 4b21, and the second sheet 4b222 is located on the side of the first sheet 4b221 away from the second diaphragm group 4b21.
  • the second sheet 4b222 may have the same size as the first sheet 4b221.
  • One end of the second sheet 4b222 is provided with a supporting body 4b224 beyond the edge of the first sheet 4b221, and the supporting body 4b224 is in a triangular shape.
  • the support body 4b224 and the second sheet body 4b222 may be integrally formed, that is, the support body 4b224 and the second sheet body 4b222 are connected to form a structural whole.
  • the support body 4b224 and the second sheet body 4b222 may be connected by means of gluing, clamping, welding or threading.
  • the shape of the connecting piece 4b223 includes but not limited to "C” shape and "V” shape.
  • the connecting piece 4b223 is connected between an end of the second piece 4b222 away from the support 4b224 and an end of the first piece 4b221 away from the support 4b224.
  • the reed 4b22 can be a one-piece molding. That is to say, the first piece 4b221, the second piece 4b222 and the connecting piece 4b223 are connected as a whole. Such setting not only facilitates the simplification of the processing technology and reduces the production cost, but also improves the connection strength between the first piece 4b221 and the connecting piece 4b223 and between the second piece 4b222 and the connecting piece 4b223. Of course, the present application is not limited thereto. In other embodiments, the first piece 4b221 , the second piece 4b222 and the connecting piece 4b223 can also be manufactured independently, and then connected by gluing or welding.
  • the transmission rod 4b23 is rod-shaped, the transmission rod 4b23 is connected between the support body 4b224 and the second dome 4b21c, and the transmission rod 4b23 is perpendicular to the second sheet body 4b222.
  • the vibration of the reed 4b22 can be transmitted to the second diaphragm group 4b21, thereby causing the second speaker unit 4b to emit sound.
  • the material of the transmission rod 4b23 includes but not limited to metal or hard plastic.
  • the connection methods between the transmission rod 4b23 and the second sheet body 4b222 include but not limited to adhesive, welding, clamping or threaded connection.
  • the connection methods between the transmission rod 4b23 and the second diaphragm group 4b21 include but not limited to glue, welding, clamping or threaded connection.
  • FIG. 22 is a schematic structural diagram of the second magnetic circuit system 4b24 of the second speaker unit 4b shown in FIG. 19 .
  • the second magnetic circuit system 4b24 is located in the rear chamber K2 of the second speaker unit 4b.
  • the second magnetic circuit system 4b24 includes a magnetic conducting part 4b241 and two magnet parts 4b242.
  • the magnetic conduction part 4b241 is in the shape of a rectangular ring.
  • the axial direction of the magnetic conduction part 4b241 is the same as the axial direction of the frame 4a24.
  • the first sheet 4b221 is supported on a surface of the magnetic conducting part 4b241 adjacent to the second diaphragm group 4b21.
  • the connection method between the first sheet body 4b221 and the magnetic conducting part 4b241 includes but not limited to glue or clip.
  • the two magnet parts 4b242 are disposed in the magnetic permeable part 4b241 and oppositely arranged in the radial direction of the magnetic permeable part 4b241.
  • the shape of the magnet part 4b242 includes but not limited to cuboid, cylinder or special shape.
  • the magnetization directions of the two magnet parts 4b2422 are opposite.
  • one end of one magnet part 4b242 close to the central axis of the magnetic conduction part 4b241 is an N pole
  • one end away from the central axis of the magnetic conduction part 4b241 is an S pole
  • One end of the central axis is an S pole
  • one end away from the central axis of the magnetic permeable portion 4b241 is an N pole.
  • the second piece 4b222 penetrates from one axial end of the magnetically permeable part 4b241 to the other axially end of the magnetically permeable part 4b241 so that the support 4b224 is located outside the magnetically permeable part 4b241 , and the second piece 4b222 Located between two magnet parts 4b242.
  • the second voice coil 4b25 is located on one side of the magnetic conduction portion 4b241 adjacent to the connecting piece 4b223 in the axial direction, and the second voice coil 4b25 surrounds the outer periphery of the second piece 4b222.
  • the side wall adjacent to the support plate 4c1 of the protective shell 4b1 can be configured as a conductive structure, and the negative lead wire of the second voice coil 4b25 is electrically connected with the conductive structure, for example, by welding to realize the electrical connection, and the conductive structure can constitute the second speaker unit.
  • the negative electrode of 4b, the conductive structure and the support plate 4c1 can be connected by welding or through conductive glue. With such an arrangement, the negative pole of the second speaker unit 4b can be electrically connected to the negative terminal 4a251.
  • a through hole may also be provided on the peripheral wall of the protective case 4b1 , and the negative electrode lead of the second voice coil 4b25 may pass through the through hole and be electrically connected to the bracket 4c.
  • a wire hole may be formed on the peripheral wall of the protective shell 4b1 or the side wall of the protective shell 4b1 away from the support plate 4c1, and the conductive member 4d may pass through the wire hole and the positive lead wire of the second voice coil 4b25 Electrical connection, or the positive lead wire of the second voice coil 4b25 passes through the wire hole and is electrically connected to the conductive member 4d.
  • the second voice coil 4b25 When the second voice coil 4b25 is energized, the second voice coil 4b25 can generate a magnetic field, so that the second piece 4b222 located in the second voice coil 4b25 is magnetized to generate magnetic poles. In this way, the second voice coil 4b25 and the magnet part 4b242 can form a driving force to drive the second piece 4b222 to vibrate along the direction of the distance between the two magnet parts 4b242, the vibration of the second piece 4b222 can drive the transmission rod 4b23 to vibrate, The vibration of the transmission rod 4b23 further drives the vibration of the second diaphragm group 4b21, and the vibration of the second diaphragm group 4b21 can push the air in the front cavity K1 to vibrate to generate sound, which is emitted by the sound channel 4b11.
  • FIG. 23 is a schematic structural diagram of the speaker module 4 in some other embodiments of the present application.
  • the second speaker unit 4b can also be laterally supported on the side surface of the support plate 4c1 facing the sound hole 110, that is, the length direction of the second speaker unit 4b is parallel to the support plate 4c1.

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Abstract

一种扬声器模组和耳机。扬声器模组包括:第一扬声器单元、支架和第二扬声器单元。第一扬声器单元包括盆架和接线端子,所述接线端子设于所述盆架;支架包括导电部;所述第二扬声器单元借助所述支架固定至所述盆架,所述第二扬声器单元的电极借助所述导电部与所述接线端子电连接。

Description

一种扬声器模组和耳机
本申请要求于2021年10月29日提交国家知识产权局、申请号为202111276330.X、发明名称为“一种扬声器模组和耳机”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。
技术领域
本申请涉及电子产品技术领域,尤其涉及一种扬声器模组和耳机。
背景技术
电子产品在使用过程中,为了让用户在不干扰旁人的状况下聆听电子产品所提供的声音信息,耳机已成为电子产品的必要配件。
相关技术中,耳机内的扬声器模组的结构紧凑性较差,装配效率低。
发明内容
本申请提供一种扬声器模组和耳机,具有较好的结构紧凑性。
为达到上述目的,本申请的实施例采用如下技术方案:
第一方面,本申请提供一种扬声器模组,包括:第一扬声器单元、支架和第二扬声器单元。第一扬声器单元包括盆架和接线端子,接线端子设于盆架;支架包括导电部;第二扬声器单元借助支架固定至盆架,第二扬声器单元的电极借助导电部与接线端子电连接。
根据本申请第一方面实施例的扬声器模组,通过设置支架,并且利用支架固定第一扬声器单元的盆架和第二扬声器单元,从而将第一扬声器单元和第二扬声器单元连接为一体,以便于将扬声器模组模块化,这样在扬声器模组安装时,第一扬声器单元和第二扬声器单元可以作为一个整体进行安装,从而无需分别将第一扬声器单元和第二扬声器单元安装至耳机的外壳内,可以简化扬声器模组的安装,并且还可以实现扬声器模组的结构紧凑性。另外,通过使得支架具有导电部,并且第二扬声器单元的电极借助导电部与接线端子电连接。从而可以至少在一定程度上简化第一扬声器单元和第二扬声器单元的电连接关系,可以省略至少一根用于电连接第一扬声器单元和第二扬声器单元的信号线,简化整个扬声器模组的结构,并且还便于扬声器模组借助接线端子电连接至电路板。
在本申请的第一方面的一种可能的实现方式中,接线端子包括负极接线端子,第二扬声器单元的负极借助导电部与负极接线端子电连接,导电部可以与电路板上的接地点电连接。这样设置,可以省略连接在负极接线端子与第二扬声器单元的负极之间的负极信号线,简化扬声器模组的结构,并且当导电部接地时,还可以提高支架使用的可靠性,至少在一定程度上避免短路问题。
在本申请的第一方面的一种可能的实现方式中,第一扬声器单元包括第一振膜组,第一振膜组支撑于盆架上;支架包括支撑板和连接部,支撑板位于第一扬声器单元的轴向一侧且与第一振膜组的外表面相对,连接部连接在支撑板的外周边缘与盆架的周 壁之间,第二扬声器单元支撑于支撑板的背离第一扬声器单元的一侧。这样设置,可以便于利用支撑板支撑第二扬声器单元。在其它的实施方式中,支架还可以不包括支撑板。
在本申请的第一方面的一种可能的实现方式中,导电部可以仅由连接部的一部分构成。
在本申请的第一方面的一种可能的实现方式中,导电部可以仅由连接部构成。
在本申请的第一方面的一种可能的实现方式中,导电部可以是由一部分连接部与一部分支撑板构成。
在本申请的第一方面的一种可能的实现方式中,导电部可以是由一部分连接部和整个支撑板构成。
在本申请的第一方面的一种可能的实现方式中,导电部可以由支架构成。这样,可以简化支架的结构,便于支架的加工制造,降低加工成本。
在本申请的第一方面的一种可能的实现方式中,支撑板上形成有第一传音通道,且第二扬声器单元不覆盖第一传音通道。这样设置,可以避免支撑板和第二扬声器单元对第一振膜组振动产生的声音传递的阻挡,而影响第一扬声器单元的发声效果。
在本申请的第一方面的一种可能的实现方式中,第一传音通道为间隔开的多个。
在本申请的第一方面的一种可能的实现方式中,支撑板形成为环形以限定出一个第一传音通道,第二扬声器单元形成为沿支撑板的周向延伸的环形以限定出避让通道,避让通道与第一传音通道连通。
在本申请的第一方面的一种可能的实现方式中,连接部包括至少两个子部分,至少两个子部分在盆架的周向上间隔开设置,每个子部分均连接在支撑板的外周边缘与盆架的外周面之间,每个子部分上均形成有卡孔,盆架的外周面上形成有与卡孔配合的卡筋。从而实现支架与盆架的可拆卸连接。在其它的实现方式中,还可以在子部分上形成卡筋,在盆架上形成卡孔。
在本申请的第一方面的一种可能的实现方式中,至少两个子部分中的其中一些子部分上形成有卡孔。
在本申请的第一方面的一种可能的实现方式中,相邻的两个子部分之间可形成传声通道。从而利用该传声通道传递第一振膜组振动产生的声音,提高第一扬声器单元的发声效果。
在本申请的第一方面的一种可能的实现方式中,在平行于第一振膜组的平面内,传声通道的正投影的一部分位于第一振膜组的正投影的外轮廓内。这样设置,可进一步地提高传声通道对第一扬声器单元的发出的声音的传递效果。
在本申请的第一方面的一种可能的实现方式中,每个子部分的位于第一振膜组与支撑板之间的部分上形成有第二传音通道。这样设置,可进一步地提高对第一扬声器单元的发出的声音的传递效果。
在本申请的第一方面的一种可能的实现方式中,至少两个子部分中的其中一些子部分的位于第一振膜组与支撑板之间的部分上形成有第二传音通道。
在本申请的第一方面的一种可能的实现方式中,连接部形成为沿所盆架的周向延伸的闭环形,连接部上形成有卡孔,盆架的外周面上形成有与卡孔配合的卡筋。从而 实现支架与盆架的可拆卸连接。在其它的实现方式中,还可以在连接部上形成卡筋,在盆架上形成卡孔。
在本申请的第一方面的一种可能的实现方式中,连接部上形成有多个卡孔,多个卡孔在盆架的周向上间隔开设置。这样,有利于提高连接部与盆架配合的可靠性。
在本申请的第一方面的一种可能的实现方式中,连接部的位于第一振膜组与支撑板之间的部分上形成有第二传音通道。这样设置,可以在一定程度上避免子部分遮挡第一扬声器单元,而影响第一扬声器单元的声音传递。
在本申请的第一方面的一种可能的实现方式中,连接部的位于第一振膜组与支撑板之间的部分上形成有多个第二传音通道,多个第二传音通道在盆架的周向上间隔开设置。这样设置,可以在一定程度上避免子部分遮挡第一扬声器单元,而影响第一扬声器单元的声音传递。
在本申请的第一方面的一种可能的实现方式中,在平行于第一振膜组的平面内,第二传音通道的正投影位于第一振膜组的正投影的外轮廓内。这样设置,可以进一步地提高第二传音通道对第一扬声器单元的声音的传递效果。
在本申请的第一方面的一种可能的实现方式中,第一扬声器单元包括第一音圈,第一音圈与第一振膜组的内表面相连,负极接线端子设有位于盆架内的导电延伸部,导电延伸部可与第一音圈的负极引线电连接。由于第一音圈的负极引线比较细,其结构强度比较弱,容易刮蹭损坏,因此,通过将导电延伸部与第一音圈的负极引线电连接,可以缩短负极引线的长度,避免了负极引线与盆架的刮蹭损坏问题,有利于提高第一音圈工作的可靠性。
在本申请的第一方面的一种可能的实现方式中,盆架的周壁具有第一开口,负极接线端子设有位于盆架内的导电延伸部,导电延伸部延伸至第一开口,导电部的正对第一开口的部分与导电延伸部相连。这样,不但可以通过支架实现第二扬声器单元与负极接线端子的电连接,而且与将导电部直接与位于盆架外的负极接线端子电连接的方案相比,负极接线端子无需在盆架的外侧伸出过长,从而避免了负极接线端子伸出盆架过长而与外壳内的结构产生干涉。
在本申请的第一方面的一种可能的实现方式中,扬声器模组包括导电件,接线端子包括正极接线端子,第二扬声器单元的正极借助导电件与正极接线端子电连接。
在本申请的第一方面的一种可能的实现方式中,导电件可以为漆包线。这样,可实现导电件与支架的绝缘。
在本申请的第一方面的一种可能的实现方式中,第一扬声器单元包括第一音圈,第一音圈与第一振膜组的内表面相连,正极接线端子设有位于盆架内的导电接线部,导电接线部可与第一音圈的正极引线电连接。由于第一音圈的正极引线比较细,其结构强度比较弱,容易刮蹭损坏,因此,通过设置导电接线部与第一音圈的正极引线电连接,可以缩短正极引线的长度,避免了正极引线与盆架的刮蹭损坏问题,有利于提高第一音圈工作的可靠性。
在本申请的第一方面的一种可能的实现方式中,正极接线端子设有位于盆架内的导电接线部,盆架的周壁具有第二开口,导电件经由第二开口伸入盆架内与导电接线部电连接。这样,不但可以通过导电件实现第二扬声器单元与正极接线端子的电连接, 而且与将导电件直接与位于盆架外的正极接线端子电连接的方案相比,正极接线端子无需在盆架的外侧伸出过长,从而避免了正极接线端子伸出盆架过长而与外壳内的结构产生干涉。
在本申请的第一方面的一种可能的实现方式中,导电件的部分位于连接部的外表面所朝向的一侧,连接部的外表面上形成有走线槽,导电件的部分位于走线槽内。这样设置,可以避免导电件凸出于连接部的外表面与外壳内的其它的结构干涉。
在本申请的第一方面的一种可能的实现方式中,第二扬声器单元为压电陶瓷扬声器单元,压电陶瓷扬声器单元与支撑板层叠设置。这样设置,结构更加紧凑。
在本申请的第一方面的一种可能的实现方式中,第二扬声器单元的负极位于第二扬声器单元的邻近支撑板的一端,第二扬声器单元的负极与支撑板之间通过导电胶相连。这样设置,可以便于第二扬声器单元的负极与支撑板的电连接,二者之间无需另外设置用于电连接的信号线等结构,可以简化扬声器模组的结构,降低扬声器模组的成本,同时还可以便于装配。
在本申请的第一方面的一种可能的实现方式中,第二扬声器单元的正极位于第二扬声器单元的背离支撑板的一端,第二扬声器单元的正极与导电件之间通过导电胶相连或焊接相连。这样设置,可以便于第二扬声器单元的正极与负极间隔开,可以至少在一定程度上避免出现短路的问题。
在本申请的第一方面的一种可能的实现方式中,压电陶瓷扬声器单元包括压电陶瓷片。压电陶瓷片包括压电体、第一电极层和第二电极层,。第一电极层设在压电体的朝向支撑板的一侧表面以形成压电陶瓷扬声器单元的负极,且第一电极层与支撑板之间可以通过导电胶电连接相连。第二电极层设在压电体的背离支撑板的一侧表面以形成压电陶瓷扬声器单元的正极,第二电极层可与导电件电连接。
在本申请的第一方面的一种可能的实现方式中,第二扬声器单元为动铁式扬声器单元,动铁式扬声器单元竖直支撑于支撑板上。这样设置,结构更加紧凑。
在本申请的第一方面的一种可能的实现方式中,动铁式扬声器单元包括第二振膜组,第二振膜组与第一振膜组垂直设置。从而,可以至少在一定程度上避免第一扬声器单元的出音对第二振膜组的振动产生干扰。
在本申请的第一方面的一种可能的实现方式中,第二扬声器单元还包括:防护壳、簧片、传动杆、第二磁路系统和第二音圈。第二振膜组设在防护壳内以将防护壳内的空间分成前腔和后腔,簧片、传动杆、第二磁路系统和第二音圈均位于后腔内,簧片、传动杆、第二磁路系统和第二音圈配合以驱动第二振膜组振动。
在本申请的第一方面的一种可能的实现方式中,第二振膜组与第一扬声器单元的轴向平行以将防护壳内的空间分成前腔和后腔。第二磁路系统与第二音圈同轴设置。由此,结构简单,而且体积小。
在本申请的第一方面的一种可能的实现方式中,簧片包括第一片体、第二片体和连接片体。第一片体和第二片体均与第二振膜组平行设置,第二片体位于第一片体的远离第二振膜组一侧,第二片体的一端设有超出第一片体的边沿的支撑体,连接片体连接在第二片体的远离支撑体的一端和第一片体的远离支撑体的一端之间,支撑体与传动杆的一端相连,传动杆的另一端与第二振膜组相连。
在本申请的第一方面的一种可能的实现方式中,第二磁路系统包括导磁部和两个磁体部,导磁部呈环状,导磁部的轴向与第一扬声器单元的轴向相同,第一片体支撑在导磁部的邻近第二振膜组的一侧表面上。两个磁体部设在导磁部内并且在导磁部的径向上相对设置,第二片体由导磁部的轴向一端贯穿至导磁部的轴向另一端以使得支撑体位于导磁部的外侧,并且第二片体位于两个磁体部之间。
在本申请的第一方面的一种可能的实现方式中,防护壳的邻近支撑板的侧壁可以构造成导电结构,导电结构可形成第二扬声器单元的负极,导电结构与支撑板通过导电胶电连接,并且第二音圈的负极引线与导电结构焊接。这样设置,可以实现将第二扬声器单元的负极通过支架与负极接线端子电连接。
在本申请的第一方面的一种可能的实现方式中,防护壳的周壁上设置有通孔,第二音圈的负极引线可以穿过通孔与支架电连接。
在本申请的第一方面的一种可能的实现方式中,防护壳的周壁上形成有过线孔,导电件可以穿过过线孔与第二音圈的正极引线电连接,或者第二音圈的正极引线穿过过线孔与导电件电连接。
在本申请的第一方面的一种可能的实现方式中,第二扬声器单元的发声频率大于第一扬声器单元的发声频率。由此,通过使得耳机包括发声频率不同的第一扬声器单元和第二扬声器单元,有利于利用第一扬声器单元和第二扬声器单元的发声频率差异,使得耳机在不同的频率的音域上均具有较好的声音表现力,提高扬声器模组的出音效果。
第二方面,本申请提供一种耳机,包括:外壳、电路板和上述任一技术方案中的扬声器模组。外壳上形成有出音孔;电路板设在外壳内;扬声器模组设在外壳内,且第一扬声器单元和第二扬声器单元均朝向出音孔发声,扬声器模组通过接线端子与电路板电连接。
根据本申请第二方面实施例的耳机,通过设置包括支架的扬声器模组,并且利用支架固定第一扬声器单元的盆架和第二扬声器单元,从而将第一扬声器单元和第二扬声器单元连接为一体,以便于将扬声器模组模块化,这样在扬声器模组安装时,第一扬声器单元和第二扬声器单元可以作为一个整体进行安装,从而无需分别将第一扬声器单元和第二扬声器单元安装至耳机的外壳内,可以简化扬声器模组的安装,并且还可以实现扬声器模组的结构紧凑性。另外,通过使得支架具有导电部,并且第二扬声器单元的电极借助导电部与接线端子电连接。从而可以至少在一定程度上简化第一扬声器单元和第二扬声器单元的电连接关系,可以省略至少一根用于电连接第一扬声器单元和第二扬声器单元的信号线,简化整个扬声器模组的结构,并且还便于扬声器模组借助接线端子电连接至电路板。
附图说明
图1为本申请一些实施例所提供的耳机的结构示意图;
图2为图1中所示的耳机的分解结构示意图;
图3为图1-图2中所示的耳机与无线充电底座之间的充电连接示意图;
图4为本申请另一些实施例所提供的耳机的截面剖视图;
图5为图4中所示的耳机的第一扬声器单元的结构示意图;
图6为图5中所示的第一扬声器单元的截面结构示意图;
图7为本申请再一些实施例所提供的耳机的部分结构示意图;
图8为图7中所示的耳机的扬声器模组的结构示意图;
图9为图8所示的扬声器模组中支架的结构示意图;
图10为图8所示的扬声器模组的另一角度的示意图;
图11为本申请另一些实施例的支架的结构示意图;
图12a为本申请再一些实施例的支架的结构示意图;
图12b为本申请其它再一些实施例的支架的结构示意图;
图13为图8所示的扬声器模组的再一角度的示意图;
图14a为图13中示出的扬声器模组在A处圈示部分的放大图;
图14b为图13中示出的扬声器模组在B-B线处的剖面图;
图15为图8所示的扬声器模组的支架、第二扬声器单元、接线端子和导电件的连接示意图;
图16为本申请另一些实施例的扬声器模组的结构示意图;
图17为图8所示的扬声器模组的剖视示意图;
图18为本申请又一些实施例的扬声器模组的结构示意图;
图19为图18中所示的第二扬声器单元的截面结构示意图;
图20为图19中所示的第二扬声器单元的第二振膜组的结构示意图;
图21为图19中所示的第二扬声器单元的簧片的结构示意图;
图22为图19中所示的第二扬声器单元的第二磁路系统的结构示意图;
图23为本申请其它一些实施例的扬声器模组的示意图。
附图标记
100、耳机;
1、外壳;10、容置空间;101、第一容纳腔;11、前壳;110、出音孔;111、主体部;112、延伸部;1121、限位凸筋;12、后壳;102、第二容纳腔;121、罩体;122、杆体;13、接触套;
2、主板;
3、电池;
4、扬声器模组;
4a、第一扬声器单元;4a21、第一振膜组;4a211、第一连接部;4a212、第一折环;4a213、第一球顶;4a22、第一音圈;4a23、第一磁路系统;4a23a、磁间隙;4a231、边磁部;4a232、第一中心磁部;4a233、第二中心磁部;4a234、导磁轭;4a24、盆架;4a241、第一开口;4a242、第二开口;4a2413、环形凹槽;4a25、接线端子;4a251、负极接线端子;4a2511、导电延伸部;4a252、正极接线端子;4a2521、导电接线部;
4b、第二扬声器单元;4b1、防护壳;4b1a、第一壳部;4b1b、第二壳部;4b11、出声通道;4b21、第二振膜组;4b21a、第二连接部;4b21b、第二折环;4b21c、第二球顶;4b22、簧片;4b221、第一片体;4b222、第二片体;4b223、连接片体;4b224、 支撑体;4b23、传动杆;4b24、第二磁路系统;4b241、导磁部;4b242、磁体部;4b25、第二音圈;4b3、避让通道;4b41、第一电极层;4b42、第二电极层;4b43、压电体;
4c、支架;4c1、支撑板;4c11、第一传音通道;4c2、连接部;4c21、子部分;4c211、卡孔;4c22、走线槽;4c23、传声通道;4c24、第二传音通道;
4d、导电件;
4e、导电胶;
5、无线充电模块;51、受电线圈;52、交直流电转换部件;53、充电控制部件;6、无线通信模块;
200、无线充电底座;201、充电线圈;202、直交流电转换部件;203、电源接口。
具体实施方式
在本申请实施例中,术语“第一”、“第二”仅用于描述目的,而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此,限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。
在本申请实施例的描述中,需要说明的是,除非另有明确的规定和限定,术语“安装”、“相连”、“连接”应做广义理解,例如,“连接”可以是可拆卸地连接,也可以是不可拆卸地连接;可以是直接连接,也可以通过中间媒介间接连接。本申请实施例中所提到的方位用语,例如,“内”、“外”等,仅是参考附图的方向,因此,使用的方位用语是为了更好、更清楚地说明及理解本申请实施例,而不是指示或暗指所指的装置或元件必须具有特定的方位、以特定的方位构造和操作,因此不能理解为对本申请实施例的限制。“多个”是指两个以上。
在本申请实施例中,术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含,从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素,而且还包括没有明确列出的其他要素,或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下,由语句“包括一个……”限定的要素,并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。在没有更多限制的情况下,由语句“包括一个……”限定的要素,并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。
本申请提供一种耳机100,该耳机100可以与手机、平板电脑、笔记本电脑等电子产品配合使用,以接收电子产品所提供的声音信息,并且输出至用户。通过耳机100与电子产品的配合使用,可以避免电子产品的声音外放而干扰旁人。该耳机100可以是无线耳机,也可以是有线耳机。
请参阅图1和图2,图1为本申请一些实施例所提供的耳机100的结构示意图;图2为图1中所示的耳机100的分解结构示意图。图1和图2所示的耳机100是以无线耳机为例进行的说明。在该实施例中,耳机100可以包括外壳1、电路板2、电池3、无线充电模块5、无线通信模块6和扬声器模组4。
可以理解的是,图1、图2以及下文相关附图仅示意性的示出了耳机100包括的一些部件,这些部件的实际形状、实际大小、实际位置和实际构造不受图1、图2以及下文各附图限定。此外,当耳机100为有线耳机时,该有线耳机可以不包括电池3、 无线通信模块6和无线充电模块5。
外壳1可以作为耳机100中的功能器件的载体,用于保护位于外壳1的容置空间10内的功能器件。并且,在用户佩戴耳机100时,耳机100是通过外壳1与用户的耳部进行接触。因此,为了提高用户佩戴耳机100的舒适性,外壳1在外形上可以与人体耳部的形状相适配。
由于外壳1是直接暴露于外界环境中,与人体耳部接触。或者耳机100通过外壳1与其它的外界结构进行接触。这就不可避免地会导致外壳1的外表面出现刮蹭、腐蚀等问题。为了避免该技术问题,外壳1可以具有一定的耐磨耐蚀防刮等性能,或者在外壳1的外表面涂布一层用于耐磨耐蚀防刮的功能材料。
在一些实施例中,外壳1可以作为一个结构整体,也就是说,外壳1可以为一体成型件,一体成型的外壳1结构强度更高。在另一些实施例中,外壳1也可以由多个部分装配形成。请继续参阅图1和图2,在该实施例中,外壳1可以包括前壳11和后壳12。其中,该前壳11在耳机100使用时面向人耳,后壳12在耳机100使用时背向人耳。外壳1由前壳11与后壳12装配形成,这样可以便于分别加工前壳11和后壳12,有利于简化前壳11和后壳12的模具结构,从而降低前壳11和后壳12的成型难度,进而降低外壳1的加工制造难度。具体的,前壳11可以通过扣合方式固定连接于后壳12。前壳11还可以通过螺钉连接于后壳12。或者,在其他实施方式中,前壳11还可以通过胶水或者胶带固定连接于后壳12。
前壳11的材质包括但不限于硬质塑料、金属、以及塑料与金属的结合。为了实现耳机100的轻量化,前壳11的材质可选为硬质塑料。
请参阅图2,前壳11内形成有第一容纳腔101,第一容纳腔101的邻近后壳12的一侧敞开。前壳11上形成有与第一容纳腔101连通的出音孔110,耳机100的声音可以通过该出音孔110传导至耳机100外。
具体的,前壳11可以包括主体部111和延伸部112。延伸部112可以位于主体部111的一侧,并向远离主体部111的方向延伸。请参阅图2,主体部111内可以形成上述第一容纳腔101,延伸部112可以形成上述出音孔110。可以理解的是,在另一些实施例中,前壳11也可以不包括延伸部112,而是直接在主体部111的壁面上开设出音孔110。
为了提高用户佩戴耳机100的舒适性,耳机100还可以设置有接触套13,该接触套13可以用于与用户的耳部相接触。例如,接触套13可以围设于延伸部112的外周面,且接触套13在外形上可以与人体耳道的形状相类似,以提高佩戴耳机100的适配性。同时,接触套13可以是由硅胶和橡胶等柔性材料制成的,以提高用户佩戴耳机100的舒适性。
请参阅图2,延伸部112的外周面上可以形成有限位凸筋1121,使得接触套13围设于延伸部112的外周面时,限位凸筋1121能够与接触套13相抵接,从而起到对接触套13进行限位的作用,降低接触套13从延伸部112上自然脱落的概率。当然,为了降低成本,耳机100还可以不包括该接触套13。
后壳12的材质可与上述的前壳11的材质相同。当然,后壳12的材质与上述的前壳11的材质也可以不同。为了实现耳机100的轻量化,后壳12的材质可选为硬质塑 料。
请继续参阅图2,后壳12可以包括罩体121和杆体122。罩体121可以与前壳11相连,杆体122可以设置于罩体121远离前壳11的一侧。罩体121内可以形成有第二容纳腔102,第二容纳腔102的邻近前壳11的一侧敞开,这样该第二容纳腔102可以与第一容纳腔101连通,并且第二容纳腔102与第一容纳腔101可以共同组成外壳1的容置空间10。
罩体121与杆体122可以为一体式结构,也就是说,罩体121与杆体122为一个整体结构。这样可以简化后壳12的加工制造工艺,同时提高罩体121与杆体122之间的连接强度。当然,本申请不限于此,罩体121与杆体122还可以是装配形成,并且罩体121与杆体122通过胶粘、卡接、螺钉连接或焊接等方式相连。
电路板2可以容纳在容置空间10内。具体的,电路板2可以安装于第二容纳腔102内。电路板2在外壳1内的安装方式包括但不限于卡接、螺钉连接或胶粘。
电路板2用于集成控制芯片等,控制芯片例如可以为应用处理器(application processor,AP)、双倍数据率同步动态随机存取存储器(double data rate,DDR)以及通用存储器(universal flash storage,UFS)等。电路板2与无线通信模块6、无线充电模块5、电池3和扬声器模组4等功能器件均电连接,以实现不同的功能器件之间的信号控制以及数据信号处理等操作。
电路板2可以为硬质电路板,也可以为柔性电路板,还可以为软硬结合电路板。电路板22可以采用FR-介质板,也可以采用罗杰斯(Rogers)介质板,还可以采用FR-和Rogers的混合介质板,等等。这里,FR-是一种耐燃材料等级的代号,Rogers介质板为一种高频板。
无线通信模块6可以集成在电路板2上。示例性的,该无线通信模块6可以焊接固定于电路板2上。可选的,无线通信模块6可以为蓝牙、红外或wifi模块。耳机100通过该无线通信模块6可与电子产品之间进行无线信号交互,以接收电子产品的声音信息。
电池3用于向耳机100内诸如电路板2、无线通信模块6、扬声器模组4等功能器件提供电量。电池3可以包括但不限于镍镉电池、镍氢电池、锂电池或其他类型的电池。并且,本申请实施例中的电池3的数量可以为多个,也可以为一个。电池3的形状包括不限于长方体、圆柱体或圆台等。在一些示例中,电池3可以位于第二容纳腔102内,并且电池3位于电路板2靠近第一容纳腔101的一侧。在其它示例中,电池3也可以位于电路板2的背离第一容纳腔101的一侧。电池3在外壳1内的安装方式包括但不限于卡接、螺钉连接或胶粘。
无线充电模块5可以集成在电路板2上,并且对耳机100内的电池3进行无线充电。具体的,请参阅图3,图3为图1-图2中所示的耳机100与无线充电底座200之间的充电连接示意图。在该实施例中,无线充电模块5包括:受电线圈51、交直流电转换部件52和充电控制部件53。受电线圈51、交直流电转换部件52和充电控制部件53均与电路板2电连接。
受电线圈51可以接收耳机100的无线充电底座200的无线充电输入。当然,本申请不限于此,受电线圈51还可以接收其它支持无线充电的终端的无线充电输入。受电 线圈51为接收(Rx)线圈。交直流电转换部件52可以是Rx芯片。
无线充电底座200包括电源接口203、充电线圈201和直交流电转换部件202。充电线圈201可以为发射(Tx)线圈。直交流电转换部件202可以是Tx芯片。
在本申请的实施例中,无线充电底座200作为无线充电信号的发射端,耳机100作为无线充电信号的接收端,无线充电底座200为耳机100无线充电。具体而言,无线充电底座200的直交流电转换部件202可以接收电源接口203输入的直流电信号。直交流电转换部件202可以将该直流电信号转换为交流电信号,然后向充电线圈201输入该交流电信号。充电线圈201响应于该交流电信号,可以产生交变电磁场。
耳机100的受电线圈51与充电线圈201进行耦合。受电线圈51(即Rx线圈)感应充电线圈201(即Tx线圈)发出的交变电磁场,可以产生交流电信号,并向交直流电转换部件52输入该交流电信号。交直流电转换部件52可以将该交流电信号整流成直流电信号,并向充电控制部件53输入该直流电信号。充电控制部件53可以根据该直流电信号为电池3充电。
当然,本申请不限于此,在另一些示例中,耳机100还可以支持有线充电。具体的,外壳1上设有充电接口,充电接口与电路板2电连接,充电接口可以连接有线充电器(也称为电源适配器),接收有线充电器为电池3的充电输入。例如,上述的充电接口可以是通用串行总线(universal serial bus,USB)接口。
请返回参阅图2,扬声器模组4可以安装于容置空间10内,扬声器模组4位于电池3的靠近出音孔110的一侧。具体的,该扬声器模组4可以安装于第一容纳腔101内。扬声器模组4与外壳1之间的装配方式包括但不限于卡接、螺纹连接或胶粘等。扬声器模组4与电路板2电连接,以获取音乐、语音等音频电信号,并且扬声器模组4可以将音频电信号转换成声音信号,支持音频外放。
上述实施例的耳机100中所采用的扬声器模组4为动圈式低音扬声器。这虽然能够使得耳机100具有低频音域表现,并且使得耳机100的造价便宜。但是,动圈式低音扬声器的振动质量大而瞬态特性不好,质量分布、膜的顺性及BL电磁驱动力的不对称分布会产生不同程度的摇摆振动以及不同频率的分割振动,导致高频响应产生严重的峰谷,无法实现高频音域表现,导致耳机100的音频外放性能较差,音效不好。
请参阅图4,图4为本申请另一些实施例所提供的耳机100的截面剖视图。在本实施例中,扬声器模组4包括第一扬声器单元4a和第二扬声器单元4b。
第一扬声器单元4a和第二扬声器单元4b间隔开的设在外壳1内。第一扬声器单元4a和第二扬声器单元4b均朝向出音孔110发声。第二扬声器单元4b的发声频率大于第一扬声器单元4a的发声频率。由此,通过使得耳机100包括发声频率不同的第一扬声器单元4a和第二扬声器单元4b,有利于利用第一扬声器单元4a和第二扬声器单元4b的发声频率差异,使得耳机100在不同的频率的音域上均具有较好的声音表现力,提高扬声器模组4的出音效果。
具体的,在该实施例中,第一扬声器单元4a可以用作低音扬声器。示例性的,第一扬声器单元4a可以为动圈式低音扬声器。第二扬声器单元4b可以为高音扬声器。示例性的,该第二扬声器单元4b可以为动铁式扬声器单元、平面音圈扬声器单元或压电陶瓷扬声器单元。
在本申请的实施例中,第一扬声器单元4a用作低音扬声器,第二扬声器单元4b用作高音扬声器,从而可以使得耳机100兼顾在低频音域和高频音域上的表现力,提高扬声器模组4的出音效果。
请参阅图5和图6,图5为图4中所示的耳机的第一扬声器单元4a的结构示意图;图6为图5中所示的第一扬声器单元4a的截面结构示意图。在该实施例中,第一扬声器单元4a包括第一振膜组4a21、第一音圈4a22、第一磁路系统4a23、盆架4a24和接线端子4a25。
可以理解的是,图5和图6以及下文相关附图仅示意性的示出了第一扬声器单元4a包括的一些部件,这些部件的实际大小、实际位置和实际构造不受图5和图6以及下文各附图限定。
具体的,第一扬声器单元4a借助盆架4a24固定于外壳1内,盆架4a24与外壳1之间的装配方式包括但不限于卡接、螺纹连接或胶粘等。盆架4a24用作第一扬声器单元4a的“支撑骨架”,用于支撑第一振膜组4a21、第一音圈4a22和第一磁路系统4a23。盆架4a24的材质包括但不限于金属、塑胶以及金属与塑料的结合。盆架4a24可以为一体成型件,也就是说,盆架4a24为一个整体式结构。这样,有利于提高盆架4a24的连接强度。当然,本申请不限于此,盆架4a24还可以由不同的部件装配形成,多个不同的部件之间可以通过卡接、螺纹连接、胶粘或焊接等方式相连。
请继续参阅图6,盆架4a24的内周面设有朝向远离盆架4a24的中心轴线的方向凹陷的环形凹槽4a2413,环形凹槽4a2413沿盆架4a24的周向延伸成环形,环形凹槽4a2413贯穿至盆架4a24敞开端的端面也即朝向出音孔110的一端端面。第一振膜组4a21外边缘收容于环形凹槽4a2413内并固定于环形凹槽4a2413的正对出音孔110的壁面上。通过将第一振膜组4a21的外边缘收容于环形凹槽4a2413内并固定于环形凹槽4a2413的正对出音孔110的壁面上,有利于利用环形凹槽4a2413对第一振膜组4a21进行有效支撑,同时环形凹槽4a2413的设置可以增大盆架4a24内空间的体积,有利于将第一振膜组4a21的尺寸设置的更大,进而有利于增大第一振膜组4a21的有效振动面积,提高第一扬声器单元4a的出音效果。可以理解的是,盆架4a24上也可以不设置环形凹槽4a2413,第一振膜组4a21的外边缘可以与盆架4a24的敞开端的端面相连。
需要说明的是,本文中所涉及的振膜组的有效振动面积是指振膜组中能推动空气运动部分的面积。
第一振膜组4a21的外表面朝向出音孔110,以使得第一扬声器单元4a可以朝向出音孔110发声。第一扬声器单元4a可以借助该第一振膜组4a21将外壳1分隔为前腔C1和后腔C2(结合图4)。第一音圈4a22、第一磁路系统4a23和盆架4a24位于后腔C2内。出音孔110与前腔C1连通。当然,本申请不限于此,在另一些示例中,第一扬声器单元4a还可以包括壳体。第一扬声器单元4a借助于壳体固定于外壳1内。盆架4a24固定于壳体的内壁上。第一振膜组4a21将壳体分隔为前腔和后腔,并且壳体的前腔与出音孔110连通。
其中,需要解释的是,第一振膜组4a21的“外表面”是指第一振膜组4a21背离盆架4a24内部的一侧表面,第一振膜组4a21的内表面与第一振膜组4a21的外表面相 背对。
请继续参阅图6,第一振膜组4a21包括:第一连接部4a211、第一折环4a212和由第一折环4a212围绕的第一球顶4a213。
第一连接部4a211呈环形片状。例如,第一连接部4a211呈圆环或矩形环。第一连接部4a211层叠设于环形凹槽4a2413的正对出音孔110的壁面上,从而使得第一振膜组4a21借助该第一连接部4a211与盆架4a24相连。第一连接部4a211与环形凹槽4a2413的连接方式包括但不限于胶粘、卡接、焊接或螺钉连接。
第一折环4a212的外周边缘与第一连接部4a211的内周边缘相连。第一折环4a212的截面形状呈弧形或近似弧形。第一折环4a212沿盆架4a24的周向的延伸轨迹呈圆形或矩形。第一折环4a212朝向出音孔110的方向凸出。这样,可以使得第一折环4a212受外力时能够发生形变,使得第一球顶4a213能够相对于第一连接部4a211沿着第一振膜组4a21的轴向振动。当然,可以理解的是,第一折环4a212还可以是朝向背离出音孔110的方向凸出的。
在一些示例中,第一振膜组4a21为一体成型件。也就是说,第一连接部4a211、第一折环4a212和第一球顶4a213为一个整体的结构。这样设置,有利于提高第一振膜组4a21的结构强度,便于第一振膜组4a21的加工制造。当然,本申请不限于此,第一连接部4a211、第一折环4a212和第一球顶4a213还可以为独立成型件,第一连接部4a211与第一折环4a212之间可以通过胶粘相连,第一折环4a212与第一球顶4a213之间可以通过胶粘相连。第一振膜组4a21的材质包括但不限于金属、塑料、植物纤维和动物纤维。
第一音圈4a22与第一球顶4a213的内表面(即背离出音孔110的一侧表面)相连。第一音圈4a22与第一球顶4a213之间的连接方式包括但不限于胶粘。
第一磁路系统4a23固定于盆架4a24内,第一磁路系统4a23具有环形的磁间隙4a23a,第一音圈4a22的远离第一振膜组4a21的一端可以伸入磁间隙4a23a内,这样第一磁路系统4a23可与第一音圈4a22配合以驱动第一振膜组4a21同步振动。具体而言,在第一音圈4a22通电后,可以产生感应磁场,第一磁路系统4a23可以响应于该感应磁场,从而使得第一音圈4a22受到第一磁路系统4a23的磁力作用发生位移,以驱动第一振膜组4a21产生振动,推动前腔C1内的空气振动形成声音,该声音由出音孔110输出。
请继续参阅图6,第一磁路系统4a23包括:边磁部4a231、第一中心磁部4a232和第二中心磁部4a233。边磁部4a231位于第一中心磁部4a232的外周以与第一中心磁部4a232限定出磁间隙4a23a。边磁部4a231和第一中心磁部4a232的充磁方向相反,这样边磁部4a231和第一中心磁部4a232可以形成用于驱动第一音圈4a22移动的磁回路。示例性的,沿着盆架4a24的轴向且朝向远离第一振膜组4a21的方向,边磁部4a231的充磁方向为由北极(N)到南极(S),第一中心磁部4a232的充磁方向为由南极(S)到北极(N)。
请继续参阅图6,边磁部4a231可以形成为环形。例如,边磁部4a231形成为圆环或矩形环。当然,可以理解的是,边磁部4a231也可以是非环形,边磁部4a231为多个,多个边磁部4a231在第一中心磁部4a232的周向上间隔开分布。
第二中心磁部4a233封堵边磁部4a231的远离第一振膜组4a21的一端,第一中心磁部4a232与第二中心磁部4a233层叠设置。第二中心磁部4a233与边磁部4a231可以为一体成型件。也就是说,第二中心磁部4a233与边磁部4a231可以为一个结构整体。当然,本申请不限于此,第二中心磁部4a233与边磁部4a231还可以通过胶粘、卡接、螺纹连接等方式相连。
具体的,第二中心磁部4a233可以为导磁材料件。这样,可以利用第二中心磁部4a233约束磁力线外漏,增大第一磁路系统4a23的磁感应强度。当然,本申请不限于此,在另一些示例中,第二中心磁部4a233可以为磁体。具体的,该磁体为磁铁或磁钢。
在一些示例中,边磁部4a231和第一中心磁部4a232均可以为磁体。示例性的,边磁部4a231和第一中心磁部4a232均为磁铁或磁钢。当然,本申请不限于此,在其它的实施例中,边磁部4a231和第一中心磁部4a232的其中一个为磁体,且另一个为导磁材料件。
为了增大第一磁路系统4a23的磁感应强度,第一磁路系统4a23还包括导磁轭4a234,导磁轭4a234设在第一中心磁部4a232朝向第一振膜组4a21的一侧,用于约束磁力线外漏,从而提高对第一振膜组4a21的驱动力。
具体的,导磁轭4a234的外周面与第一中心磁部4a232的外周面在第一磁路系统4a23的轴向上平齐。这样,有利于进一步地提高导磁轭4a234对磁力线的约束效果,增大第一磁路系统4a23的磁感应强度,并且导磁轭4a234不会影响磁间隙4a23a,有利于提高第一磁路系统4a23与第一音圈4a22的适配性。
请参阅图5,接线端子4a25设在盆架4a24上。具体的,接线端子4a25位于盆架4a24的外侧。示例性的,接线端子4a25可以凸设于盆架4a24的外周面。又示例性的,盆架4a24的外周面上可以形成凹槽,接线端子4a25可以位于凹槽内。关于接线端子4a25的设置方式,本领域技术人员可以根据实际需要进行设计,只要保证接线端子4a25位于盆架4a24的外侧即可。
接线端子4a25包括正极接线端子4a252和负极接线端子4a251。
正极接线端子4a252设有位于盆架4a24内的导电接线部。导电接线部可与第一音圈4a22的正极引线电连接。在一些示例中,第一音圈4a22的正极引线与导电接线部之间可以通过焊接相连。
负极接线端子4a251设有位于盆架4a24内的导电延伸部。导电延伸部可与第一音圈4a22的负极引线电连接。在一些示例中,第一音圈4a22的负极引线与导电延伸部之间可以通过焊接相连。
在本申请的实施例中,由于第一音圈4a22的正极引线和负极引线均比较细,其结构强度比较弱,容易刮蹭损坏,因此,通过将位于盆架4a24内的导电接线部与第一音圈4a22的正极引线电连接,可以缩短正极引线的长度,避免了正极引线与盆架4a24的刮蹭损坏问题;通过将位于盆架4a24内的导电延伸部与第一音圈4a22的负极引线电连接,可以缩短负极引线的长度,避免了负极引线与盆架4a24的刮蹭损坏问题,有利于提高第一音圈4a22工作的可靠性。
第一扬声器单元4a通过正极接线端子4a252以及负极接线端子4a251电连接至与 电路板2,从而获取音乐、语音等音频电信号。
如上文中所述的,第一扬声器单元4a和第二扬声器单元4b间隔开设在外壳1内,这样,第一扬声器单元4a和第二扬声器单元4b要分别与外壳1进行安装,导致装配过程较为复杂,装配效率低,而且第一扬声器单元4a和第二扬声器单元4b在外壳1内的间隔开设置还不利于扬声器模组4的结构紧凑性。为了解决该技术问题,在本申请的实施例中,请参阅图7和图8,图7为本申请再一些实施例所提供的耳机100的部分结构示意图;图8为图7中所示的耳机100的扬声器模组4的结构示意图。在该实施例中,扬声器模组4还包括支架4c。第二扬声器单元4b可以借助支架4c与第一扬声器单元4b的盆架4a24相连,从而实现第一扬声器单元4a和第二扬声器单元4b的固定连接,在安装扬声器模组4时,可以利于扬声器模组4作为一个整体安装至外壳1内,从而无需分别将第一扬声器单元4a和第二扬声器单元4b安装至外壳1内,可以简化扬声器模组4的安装,并且还可以实现扬声器模组4的结构紧凑性。
具体的,请参阅图9,图9为图8所示的扬声器模组4中支架4c的结构示意图。在该实施例中,支架4c包括支撑板4c1和连接部4c2。
支撑板4c1位于第一扬声器单元4a的轴向的一侧,并且支撑板4c1与第一扬声器单元4a的第一振膜组4a21的外表面相对,第二扬声器单元4b支撑于支撑板4c1的背离第一扬声器单元4a的一侧,也就是说,第二扬声器单元4b支撑于支撑板4c1的朝向出音孔110的一侧。从而可以利用支撑板4c1支撑第二扬声器单元4b,以便于第二扬声器单元4b的安装。第二扬声器单元4b与支撑板4c1之间的连接方式包括但不限于胶粘、卡接、焊接或螺钉连接。
为了避免支撑板4c1和第二扬声器单元4b对第一振膜组4a21振动产生的声音传递的阻挡,而影响第一扬声器单元4a的发声效果,请继续参阅图9,并且结合图8,支撑板4c1上形成有第一传音通道4c11,第二扬声器单元4b不覆盖第一传音通道4c11,这样,第一振膜组4a21振动推动空气振动而发出的声音可以经过第一传音通道4c11朝向出音孔110传递。第一传音通道4c11的数量可以为多个,也可以为一个。示例性的,支撑板4c1形成为环形以限定出第一传音通道4c11,第二扬声器单元4b形成为沿支撑板4c1的周向延伸的环形以限定出避让通道4b3,避让通道4b3与第一传音通道4c11连通。当然,本申请不限于此,在其他的示例中,第二扬声器单元4b也可以不是环形,并且第二扬声器单元4b可以覆盖支撑板4c1的一部分。示例性的,第二扬声器单元4b可以偏离支撑板4c1的中心设置。
支撑板4c1的外周轮廓呈圆形、矩形、三角形、梯形或异形。支撑板4c1的材质包括但不限于金属、塑料以及金属与塑料的结合。
连接部4c2连接在支撑板4c1的外周边缘与盆架4a24的周壁之间,以便于第二扬声器单元4b借助连接部4c2固定至盆架4a24。在一些示例中,连接部4c2与支撑板4c1可以为一体成型件,也就是说,连接部4c2与支撑板4c1可以为一个整体结构,这样,有利于提高连接部4c2与支撑板4c1的连接强度。在另一些示例中,连接部4c2还可以通过胶粘、卡接、焊接或螺钉连接等方式与支撑板4c1相连。连接部4c2与盆架4a24的连接方式包括但不限于卡接、胶粘、焊接和螺钉连接。连接部4c2的材质包括但不限于金属、塑料以及金属与塑料的结合。
具体的,请继续参阅图9,连接部4c2包括至少两个子部分4c21,至少两个子部分4c21在支撑板4c1的周向上间隔开设置,每个子部分均连接在支撑板4c1的外周边缘与盆架4a24的周壁之间。
请继续参阅图9,每个子部分4c21在支撑板4c1的周向上延伸成板状。这样设置,在减小支架4c的体积和重量的同时,还有助于提高子部分4c21的结构强度,从而提高支架4c与盆架4a24的连接可靠性,进而提高支架4c对第一扬声器单元4a和第二扬声器单元4b的固定的可靠性。
具体的,请继续参阅图9,每个子部分4c21上形成有卡孔4c211,盆架4a24的外周面上形成有卡筋(图未示出),卡筋卡合到卡孔4c211内,从而实现支架4c与盆架4a24的可拆卸连接。当然,本申请不限于此,在其它的实施方式中,还可以在每个子部分4c21上形成卡筋,盆架4a24的外周面上形成卡孔,卡筋卡合到卡孔内,同样可实现支架4c与盆架4a24的可拆卸连接。
由于支撑板4c1与第一扬声器单元4a间隔开,通过使得子部分4c21连接在支撑板4c1的外周边缘与盆架4a24的周壁之间。这样,相邻的两个子部分4c21之间可以形成传声通道4c23,从而利用该传声通道4c23传递第一振膜组4a21振动产生的声音,提高第一扬声器单元4a的发声效果。
为了避免子部分4c21遮挡第一扬声器单元4a,而影响第一扬声器单元4a的声音传递,提高第一扬声器单元4a的出音效果,请继续参阅图9,每个子部分4c21的位于第一振膜组4a21与支撑板4c1之间的部分上形成有第二传音通道4c24。当然,本申请不限于此,子部分4c21上还可以不设置第二传音通道4c24。
为了进一步地提高传声通道4c23对第一扬声器单元4a的发出的声音的传递效果,请参阅图10,图10为图8所示的扬声器模组4的另一角度的示意图。在平行于第一振膜组4a21的平面内,传声通道4c23的正投影的一部分位于第一振膜组4a21的正投影的外轮廓内。
为了进一步地提高第二传音通道4c24对第一扬声器单元4a的声音的传递效果,请继续参阅图10,在平行于第一振膜组4a21的平面内,第二传音通道4c24的正投影位于第一振膜组4a21的正投影的外轮廓内,这样一来,第二传音通道4c24可以与第一振膜组4a21在第一扬声器单元4a的轴向上相对,从而更加有利于第一扬声器单元4a的出音,保证第一扬声器单元4a的出音效果。
请参阅图11,图11为本申请另一些实施例的支架4c的结构示意图。图11所示的支架4c的结构与图9中所示的支架4c的结构的不同之处在于,每个子部分4c21上不再设置第二传音通道4c24,每个子部分4c21呈杆状,这样,可以减小子部分4c21的体积和重量,从而减小扬声器模组4的重量以及扬声器模组4的体积,同时还有助于增大传声通道4c23的面积,提高第一扬声器模组4a的出音效果。
请参阅图12a,图12a为本申请再一些实施例的支架4c的结构示意图。连接部4c2还可以不包括多个间隔开的子部分,连接部4c2为在盆架4a24的整个周向上延伸的闭环形。这样设置,有助于提高连接部4c2的结构强度,从而提高支架4c与盆架4a24的连接可靠性,进而提高支架4c对第一扬声器单元4a和第二扬声器单元4b的固定的可靠性。
具体的,请继续参阅图12a,连接部4c2上形成有卡孔4c211。盆架4a24的外周面上形成有卡筋(图未示出),卡筋卡合到卡孔4c211内,从而实现支架4c与盆架4a24的可拆卸连接。当然,本申请不限于此,在其它的实施方式中,还可以在连接部4c2上形成卡筋,盆架4a24的外周面上形成卡孔,卡筋卡合到卡孔内,同样可实现支架4c与盆架4a24的可拆卸连接。
为了避免连接部4c2遮挡第一扬声器单元4a,而影响第一扬声器单元4a的声音传递,提高第一扬声器单元4a的出音效果,请继续参阅图12a,连接部4c2的位于第一振膜组4a21与支撑板4c1之间的部分上形成有第二传音通道4c24。当然,本申请不限于此,连接部4c2上还可以不设置第二传音通道4c24。
为了进一步地提高第二传音通道4c24对第一扬声器单元4a的声音的传递效果,在平行于第一振膜组4a21的平面内,第二传音通道4c24的正投影位于第一振膜组4a21的正投影的外轮廓内,这样一来,第二传音通道4c24可以与第一振膜组4a21在第一扬声器单元4a的轴向上相对,从而更加有利于第一扬声器单元4a的出音,保证第一扬声器单元4a的出音效果。
请参阅图12b,图12b为本申请其它再一些实施例的支架4c的结构示意图。本实施例与上述实施例的不同之处在于,支架4c还可以不包括支撑板4c1,而是包括连接部4c2,第二扬声器单元4b可以支撑于连接部4c2的远离第一扬声器单元4a的一端。
在上述实施例的基础上,在本申请的一些实施例中,支架4c具有导电部,第二扬声器单元4b的电极借助导电部与接线端子4a25电连接,这样,可以实现扬声器模组4借助接线端子4a25与电路板2电连接。也就是说,可以是第二扬声器单元4b的负极借助导电部与负极接线端子4a251电连接;或者,可以是第二扬声器单元4b的正极借助导电部与正极接线端子4a252电连接;又或者,导电部为绝缘间隔开的两个,第二扬声器单元4b的负极借助其中一个导电部与负极接线端子4a251电连接,第二扬声器单元4b的正极借助另一个导电部与正极接线端子4a252电连接。
可选的,当第二扬声器单元4b的正极借助导电部与正极接线端子4a252电连接时,为了提高支架4c使用的可靠性,避免支架4c与耳机100外壳1内的其它的结构接触而产生短路问题,导电部的表面可以设置绝缘防护层。
当第二扬声器单元4b的负极借助导电部与负极接线端子4a251电连接时,为了提高支架4c使用的可靠性,避免支架4c与耳机100外壳1内的其它的结构接触而产生短路问题,该导电部可与电路板2上的接地点电连接,以实现接地。
具体的,导电部至少由至少部分连接部4c2构成。具体而言,导电部可以仅由连接部4c2的一部分构成,导电部可以仅由连接部4c2构成,导电部还可以是由一部分连接部4c2与一部分支撑板4c2构成,导电部还可以是由一部分连接部4c2和整个支撑板4c2构成,导电部还可以由支架4c构成。
根据本申请实施例的扬声器模组4,通过使得耳机100包括发声频率不同的第一扬声器单元4a和第二扬声器单元4b,有利于利用第一扬声器单元4a和第二扬声器单元4b的发声频率差异,使得耳机100在不同的频率的音域上均具有较好的声音表现力,提高扬声器模组的出音效果。并且,通过设置支架4c,并且利用支架4c固定第一扬声器单元4a的盆架4a24和第二扬声器单元4b,从而将第一扬声器单元4a和第二扬 声器单元4b连接为一体,以便于将扬声器模组4模块化,这样在扬声器模组4安装时,第一扬声器单元4a和第二扬声器单元4b可以作为一个整体进行安装,从而无需分别将第一扬声器单元4a和第二扬声器单元4b安装至耳机100的外壳1内,可以简化扬声器模组4的安装,并且还可以实现扬声器模组4的结构紧凑性。另外,通过使得支架4c具有导电部,并且第二扬声器单元4b的电极借助导电部与接线端子4a25电连接。从而可以至少在一定程度上简化第一扬声器单元4a和第二扬声器单元4b的电连接关系,可以省略至少一根用于电连接第一扬声器单元4a和第二扬声器单元4b的信号线,简化整个扬声器模组4的结构,并且还便于扬声器模组4借助接线端子4a25电连接至电路板2。
在本申请的一些实施例中,导电部为支架4c的一部分,导电部可以为金属嵌件,支架4c的其余部分可以为塑料件。示例性的,支架4c通过模内注塑工艺加工出。这样设置,加工工艺简单,而且支架4c的结构强度较高。
在本申请的另一些实施例中,支架4c限定出导电部,也就是说,整个支架4c均可导电,第二扬声器单元4b的负极借助支架4c与负极接线端子4a251电连接,并且支架4c接地。这样设置,可以简化支架4c的结构。
进一步的,请参阅图13、图14a、图14b和图15,图13为图8所示的扬声器模组4的再一角度的示意图;图14a为图13中示出的扬声器模组4在A处圈示部分的放大图;图14b为图13中示出的扬声器模组4在B-B线处的剖面图;图15为图8所示的扬声器模组4的支架4c、第二扬声器单元4b、接线端子4a25和导电件4d的连接示意图。盆架4a24的周壁具有第一开口4a241,负极接线端子4a251设有位于盆架4a24内的导电延伸部4a2511,导电延伸部4a2511延伸至第一开口4a241,连接部4c2的正对第一开口4a241的部分与导电延伸部4a2511相连。示例性的,连接部4c2的正对第一开口4a241的部分与导电延伸部4a2511焊接相连。
这样,不但可以通过支架4c实现第二扬声器单元4b与负极接线端子4a251的电连接,而且与将连接部4c2直接与负极接线端子4a251电连接的方案相比,负极接线端子4a251无需在盆架4a24的外侧伸出过长,从而避免了负极接线端子4a251伸出盆架4a24过长而与外壳1内的结构产生干涉。在其它的示例中,盆架4a24的周壁上还可以不设置第一开口4a241,而是将连接部4c2直接与负极接线端子4a251电连接。
请继续参阅图13和图15,扬声器模组4还包括导电件4d,第二扬声器单元4b的正极通过导电件4d与正极接线端子4a252电连接。
可选的,为了实现导电件4d与支架4c的绝缘,导电件4d可以为漆包线。当然,本申请不限于此,导电件4d还可以为柔性电路板(flexible printed circuit,FPC)或导线,只要保证支架4c与导电件4d绝缘间隔即可。
进一步的,请参阅图13,盆架4a24的周壁具有第二开口4a242,正极接线端子4a252设有位于盆架4a24内的导电接线部4a2521,导电件4d经由第二开口4a242伸入盆架4a24内与导电接线部4a2521电连接。这样,不但可以通过导电件4d实现第二扬声器单元4b与正极接线端子4a252的电连接,而且与将导电件4d直接与正极接线端子4a252电连接的方案相比,正极接线端子4a252无需在盆架4a24的外侧伸出过长,从而避免了正极接线端子4a252伸出盆架4a24过长而与外壳1内的结构产生干涉。在 其它的示例中,盆架4a24的周壁上还可以不设置第二开口4a242,而是将导电件4d直接与正极接线端子4a252电连接。
请参阅图16,图16为本申请另一些实施例的扬声器模组4的结构示意图。导电件4d的一部分位于连接部4c2的外表面所朝向的一侧,为了避免导电件4d整体凸出于连接部4c2的外表面与外壳1内的其它的结构干涉,连接部4c2的外表面上可以形成走线槽4c22,导电件4d的部分位于走线槽4c22内。当然,可以理解的是,连接部4c2的外表面上也可以不设置走线槽4c22。
这里,连接部4c2的外表面是指连接部4c2的背离第一扬声器单元4a的中心轴线的一侧表面。
可选的,导电件4d的部分位于盆架4a24的外周面所朝向的一侧,为了避免导电件4d整体凸出于盆架4a24的外周面与外壳1内的其它的结构干涉,盆架4a24的外周面上可以形成避让槽,导电件4d的部分位于避让槽内。当然,可以理解的是,盆架4a24的外周面上也可以不设置避让槽。
在本申请的一些实施例中,请参阅图17,图17为图8所示的扬声器模组4的剖视示意图。第二扬声器单元4b的负极位于第二扬声器单元4b的邻近支撑板4c1的一端,第二扬声器单元4b的负极与支撑板4c1之间通过导电胶4e相连。这样设置,可以便于第二扬声器单元4b的负极与支撑板4c1的电连接,二者之间无需另外设置用于电连接的信号线等结构。第二扬声器单元4b的正极位于第二扬声器单元4b的背离支撑板4c1的一端,第二扬声器单元4b的正极与导电件4d之间通过导电胶相连或焊接相连。这样设置,可以便于第二扬声器单元4b的正极与负极间隔开,可以至少在一定程度上避免出现短路的问题。
在本申请的一些实施例中,请继续参阅图17,第二扬声器单元4b为压电陶瓷扬声器单元,压电陶瓷扬声器单元与支撑板4c1层叠设置。压电陶瓷扬声器单元与支撑板4c1之间的连接方式包括但不限于胶粘或焊接。在本申请的实施例中,压电陶瓷扬声器单元的厚度薄,体积小,而且具有良好的高频音效。
具体的,压电陶瓷扬声器单元包括压电陶瓷片4bb。压电陶瓷片4bb包括压电体4b43、第一电极层4b41和第二电极层4b42。
可以理解的是,图17以及下文相关附图仅示意性的示出了第二扬声器单元4b包括的一些部件,这些部件的实际形状、实际大小、实际位置和实际构造不受图17以及下文各附图限定。
第一电极层4b41构成压电陶瓷扬声器单元的负极,第二电极层4b42构成压电陶瓷扬声器单元的正极。第一电极层4b41和第二电极层4b42夹持压电体4b43。压电体4b43可以使用陶瓷材质制造。例如,压电体4b43的材质包括但不限于锆酸铅、锆钛酸铅、锆钛酸铅镧、钛酸钡、钨青铜结构化合物、钛酸钡与铁酸铋的固溶体等。第一电极层4b41和第二电极层4b42可以通过蒸镀、电镀、溅射等形成在压电体4b43上。第一电极层4b41和第二电极层4b42的材料可以为金属。具体而言,例如,第一电极层4b41的材料包括但不限于金、铂、银、铜、钯、铬、钼、铁、锡、铝和镍等。第二电极层4b42的材质包括但不限于金、铂、银、铜、钯、铬、钼、铁、锡、铝和镍等。第一电极层4b41的材质和第二电极层4b42的材质可以相同,也可以不同。当压电陶 瓷扬声器单元施加交流电时,压电体4b43会产生伸缩变形,从而推动空气振动而发声。在该实施例中,压电陶瓷扬声器单元的第一电极层4b41设在压电体4b43的朝向支撑板4c1的一侧表面,且第一电极层4b41与支撑板4c1之间可以通过导电胶4e电连接相连。第二电极层4b42设在压电体4b43的背离支撑板4c1的一侧表面,第二电极层4b42可与导电件4d焊接连接。
在本申请的另一些实施例中,请参阅图18,图18为本申请又一些实施例的扬声器模组4的结构示意图。第二扬声器单元4b为动铁式扬声器单元。第二扬声器单元4b竖直支撑于支撑板4c1的朝向出音孔110的一侧表面,且第二扬声器单元4b位于第一传音通道4c11的内周面与支撑板4c1的外周面之间。
请参阅图19,图19为图18中所示的第二扬声器单元4b的截面结构示意图。在该实施例中,第二扬声器单元4b可以包括:防护壳4b1、第二振膜组4b21、簧片4b22、传动杆4b23、第二磁路系统4b24和第二音圈4b25。
可以理解的是,图19以及下文相关附图仅示意性的示出了第二扬声器单元4b包括的一些部件,这些部件的实际形状、实际大小、实际位置和实际构造不受图19以及下文各附图限定。
防护壳4b1作为第二扬声器单元4b内各个部件的载体,用于保护第二振膜组4b21、簧片4b22、传动杆4b23、第二磁路系统4b24和第二音圈4b25等。防护壳4b1与支撑板4c1之间的连接关系包括但不限于卡接、胶粘、焊接或螺钉连接。
防护壳4b1的邻近出音孔110的一侧形成有出声通道4b11,第二扬声器单元4b的声音可由该出声通道4b11发出,从而可以使得第二扬声器单元4b和第一扬声器单元4a均朝向出音孔110发声。
防护壳4b1的材质包括但不限于金属、塑胶以及金属与塑料的结合。在一些实施例中,防护壳4b1的材料为塑胶,塑胶的成本低,且易于成型,有利于降低第二扬声器单元4b的加工成本。在另一些示例中,为了提高防护壳4b1的结构强度,防护壳4b1的材质可为以金属。
防护壳4b1沿着出音孔110的出音方向延伸,也就是说,防护壳4b1的长度方向与出音孔110的出音方向同向。具体的,请参阅图19,防护壳4b1的形状可以为长方体状。
防护壳4b1可以为一个结构整体,也可以由多个部分装配形成。在一些实施例中,请继续参阅图19。防护壳4b1包括第一壳部4b1a和第二壳部4b1b。第一壳部4b1a和第二壳部4b1b在第一扬声器单元4a的径向上排布且拼接相连。这样可以便于分别加工第一壳部4b1a和第二壳部4b1b,有利于简化第一壳部4b1a和第二壳部4b1b的模具结构,从而降低第一壳部4b1a和第二壳部4b1b的成型难度,进而降低防护壳4b1的加工制造难度。
请继续参阅图19,第二振膜组4b21设在防护壳4b1内。第二振膜组4b21与第一扬声器单元4a的轴向平行,这样,第二振膜组4b21可以与第一振膜组4a21垂直设置。从而,可以至少在一定程度上避免第一扬声器单元4a的出音对第二振膜组4b21的振动产生干扰。
第二扬声器单元4b借助第二振膜组4b21将防护壳4b1内的空间分成前腔k1和后 腔k2,这样,前腔k1和后腔k2在第一扬声器单元4a的径向上排布。
请参阅图20,图20为图19中所示的第二扬声器单元4b的第二振膜组4b21的结构示意图。第二振膜组4b21包括第二连接部4b21a、第二折环4b21b和第二球顶4b21c。
第二连接部4b21a呈环形片状,并且第二连接部4b21a为圆角矩形环。
请参阅图20,并且结合图19,防护壳4b1的内周面上设有台阶部4b12,第二连接部4b21a层叠设于台阶部4b12上。第二连接部4b21a与台阶部4b12之间的连接关系包括但不限于胶粘。当然,在另一些示例中,防护壳4b1也可以不设置台阶部4b12,而是将第二连接部4b21a设置成环形的筒状,并且将第二连接部4b21a与防护壳4b1的内周面相连。
第二折环4b21b设在第二球顶4b21c的外周且由第二连接部4b21a围绕。第二折环4b21b呈圆角矩形环状。第二折环4b21b朝向靠近后腔K2的一侧凹入以形成弧形或近似弧形的截面,这样设置,可以节约前腔K1的空间。当然,本申请不限于此,在其它的实施例中,第二折环4b21b朝向靠近前腔K1的一侧凹入以形成弧形或近似弧形的截面。
在一些示例中,第二振膜组4b21可以为一体成型件。也就是说,第二连接部4b21a、第二折环4b21b和第二球顶4b21c一体成型,且连接成一个整体。这样设置,不但便于简化加工工艺,降低生产成本,并且可提高第二连接部4b21a与第二折环4b21b之间以及第二折环4b21b与第二球顶4b21c之间的连接强度。当然,本申请不限于此,在其它实施例中,第二连接部4b21a、第二折环4b21b和第二球顶4b21c还可以分别独立加工制造,然后通过胶粘等方式连接。
请继续参阅图19,簧片4b22设置在第二扬声器单元4b的后腔K2内,用于为第二振膜组4b21的振动提供驱动力。簧片4b22的材质包括但不限于金属。
请参阅图21,图21为图19中所示的第二扬声器单元4b的簧片4b22的结构示意图。簧片4b22包括第一片体4b221、第二片体4b222和连接片体4b223。
第一片体4b221呈矩形片状。第一片体4b221与第二振膜组4b21平行设置。第二片体4b222呈矩形片状。第二片体4b222与第二振膜组4b21平行设置,并且第二片体4b222位于第一片体4b221的远离第二振膜组4b21一侧。第二片体4b222可以与第一片体4b221的尺寸相同。
第二片体4b222的一端设有超出第一片体4b221的边沿的支撑体4b224,支撑体4b224呈三角形形状。在一些示例中,支撑体4b224与第二片体4b222可以为一体成型件,也即,支撑体4b224与第二片体4b222连接成一个结构整体。在另一些示例中,支撑体4b224与第二片体4b222可以通过胶粘、卡接、焊接或螺纹连接等方式相连。
连接片体4b223的形状包括但不限于“C”形和“V”形。连接片体4b223连接在第二片体4b222的远离支撑体4b224的一端和第一片体4b221的远离支撑体4b224的一端之间。
簧片4b22可以为一体成型件。也就是说,第一片体4b221、第二片体4b222和连接片体4b223连接成一个整体。这样设置,不但便于简化加工工艺,降低生产成本,并且可提高第一片体4b221和连接片体4b223之间以及第二片体4b222和连接片体4b223之间的连接强度。当然,本申请不限于此,在其它实施例中,第一片体4b221、 第二片体4b222和连接片体4b223还可以分别独立加工制造,然后通过胶粘或焊接等方式连接。
请继续参阅图19,传动杆4b23呈杆状,传动杆4b23连接在支撑体4b224与第二球顶4b21c之间,传动杆4b23与第二片体4b222垂直设置。通过传动杆4b23的连接,可将簧片4b22的振动传递给第二振膜组4b21,进而引起第二扬声器单元4b的发声。
传动杆4b23的材质包括但不限于金属或硬质塑料。传动杆4b23与第二片体4b222之间的连接方式包括但不限于胶粘、焊接、卡接或螺纹连接。传动杆4b23与第二振膜组4b21之间的连接方式包括但不限于胶粘、焊接、卡接或螺纹连接。
请参阅图22,并且结合图19,其中,图22为图19中所示的第二扬声器单元4b的第二磁路系统4b24的结构示意图。第二磁路系统4b24位于第二扬声器单元4b的后腔K2内。第二磁路系统4b24包括导磁部4b241和两个磁体部4b242。
导磁部4b241呈矩形环状。导磁部4b241的轴向与盆架4a24的轴向相同。第一片体4b221支撑在导磁部4b241的邻近第二振膜组4b21的一侧表面上。第一片体4b221与导磁部4b241之间的连接方式包括但不限于胶粘或卡接。
两个磁体部4b242设在导磁部4b241内并且在导磁部4b241的径向上相对设置。
磁体部4b242的形状包括但不限于长方体状、圆柱体状或异形。两个磁体部4b2422的充磁方向相反。示例的,其中一个磁体部4b242的靠近导磁部4b241的中心轴线的一端为N极,且远离导磁部4b241的中心轴线的一端为S极,另一个磁体部4b242的靠近导磁部4b241的中心轴线的一端为S极,且远离导磁部4b241的中心轴线的一端为N极。
请继续参阅图19,第二片体4b222由导磁部4b241的轴向一端贯穿至导磁部4b241的轴向另一端以使得支撑体4b224位于导磁部4b241的外侧,并且第二片体4b222位于两个磁体部4b242之间。
第二音圈4b25位于导磁部4b241的轴向的邻近连接片体4b223的一侧,并且第二音圈4b25环绕在第二片体4b222的外周。
在一些示例中,防护壳4b1的邻近支撑板4c1的侧壁可以构造成导电结构,第二音圈4b25的负极引线与导电结构电连接例如通过焊接实现电连接,导电结构可以构成第二扬声器单元4b的负极,该导电结构与支撑板4c1可以焊接相连或通过导电胶相连。这样设置,可以实现将第二扬声器单元4b的负极与负极接线端子4a251电连接。当然,本申请不限于此,在另一些示例中,还可以在防护壳4b1的周壁上设置通孔,第二音圈4b25的负极引线可以穿过通孔与支架4c电连接。
在一些示例中,防护壳4b1的周壁上或者防护壳4b1的远离支撑板4c1的一侧侧壁可以形成有过线孔,导电件4d可以穿过过线孔与第二音圈4b25的正极引线电连接,或者第二音圈4b25的正极引线穿过过线孔与导电件4d电连接。
当第二音圈4b25通电时,第二音圈4b25可以产生磁场,使得位于第二音圈4b25中的第二片体4b222发生磁化而产生磁极。这样,第二音圈4b25可与磁体部4b242之间形成驱动第二片体4b222沿着两个磁体部4b242的间隔方向振动的驱动力,第二片体4b222的振动可以带动传动杆4b23振动,传动杆4b23的振动进而带动第二振膜组4b21的振动,第二振膜组4b21的振动可以推动前腔K1内的空气振动而产生声音, 该声音由出声通道4b11发出。
请参阅图23,图23为本申请其它一些实施例的扬声器模组4的结构示意图。在本实施例中,第二扬声器单元4b还可以横向支撑于支撑板4c1的朝向出音孔110的一侧表面,也就是说,第二扬声器单元4b的长度方向与支撑板4c1平行。
在本说明书的描述中,具体特征、结构、材料或者特点可以在任何的一个或多个实施例或示例中以合适的方式结合。
最后应说明的是:以上实施例仅用以说明本申请的技术方案,而非对其限制;尽管参照前述实施例对本申请进行了详细的说明,本领域的普通技术人员应当理解:其依然可以对前述各实施例所记载的技术方案进行修改,或者对其中部分技术特征进行等同替换;而这些修改或者替换,并不使相应技术方案的本质脱离本申请各实施例技术方案的精神和范围。

Claims (24)

  1. 一种扬声器模组(4),其特征在于,包括:
    第一扬声器单元(4a),所述第一扬声器单元(4a)包括盆架(4a24)和接线端子(4a25),所述接线端子(4a25)设于所述盆架(4a24);
    支架(4c),所述支架(4c)包括导电部;
    第二扬声器单元(4b),所述第二扬声器单元(4b)借助所述支架(4c)固定至所述盆架(4a24),所述第二扬声器单元(4b)的电极借助所述导电部与所述接线端子(4a25)电连接。
  2. 根据权利要求1所述的扬声器模组(4),其特征在于,所述接线端子(4a25)包括负极接线端子(4a251),所述第二扬声器单元(4b)的负极借助所述导电部与所述负极接线端子(4a251)电连接。
  3. 根据权利要求2所述的扬声器模组(4),其特征在于,所述盆架(4a24)的周壁具有第一开口(4a241),所述负极接线端子(4a251)设有位于所述盆架(4a24)内的导电延伸部(4a2511),所述导电延伸部(4a2511)延伸至所述第一开口(4a241),所述导电部的正对所述第一开口(4a241)的部分与所述导电延伸部(4a2511)相连。
  4. 根据权利要求2-3中任一项所述的扬声器模组(4),其特征在于,所述扬声器模组(4)包括导电件(4d),所述接线端子(4a25)包括正极接线端子(4a252),所述第二扬声器单元(4b)的正极借助所述导电件(4d)与所述正极接线端子(4a252)电连接。
  5. 根据权利要求4所述的扬声器模组(4),其特征在于,所述正极接线端子(4a252)设有位于所述盆架(4a24)内的导电接线部(4a2521),所述盆架(4a24)的周壁具有第二开口(4a242),所述导电件(4d)经由所述第二开口(4a242)伸入所述盆架(4a24)内与所述导电接线部(4a2521)电连接。
  6. 根据权利要求4或5所述的扬声器模组(4),其特征在于,所述支架(4c)包括连接部(4c2),所述第二扬声器单元(4b)通过所述连接部(4c2)与所述盆架(4a24)的周壁之间,所述导电件(4d)的部分位于所述连接部(4c2)的外表面所朝向的一侧,所述连接部(4c2)的外表面上形成有走线槽(4c22),所述导电件(4d)的部分位于所述走线槽(4c22)内。
  7. 根据权利要求2所述的扬声器模组(4),其特征在于,所述第一扬声器单元(4a)包括第一振膜组(4a21),所述第一振膜组(4a21)支撑于所述盆架(4a24)上;
    所述支架(4c)包括连接部(4c2)和支撑板(4c1),所述支撑板(4c1)位于所述第一扬声器单元(4a)的轴向一侧且与所述第一振膜组(4a21)的外表面相对,所述连接部(4c2)连接在所述支撑板(4c1)的外周边缘与所述盆架(4a24)的周壁之间,所述第二扬声器单元(4b)支撑于所述支撑板(4c1)的背离所述第一扬声器单元(4a)的一侧。
  8. 根据权利要求7所述的扬声器模组(4),其特征在于,所述导电部仅由所述连接部(4c2)的一部分构成;或者,所述导电部仅由整个连接部(4c2)构成;或者,所述导电部由一部分所述连接部(4c2)和一部分所述支撑板(4c1)构成;或者,所述导电部由一部分所述连接部(4c2)和整个所述支撑板(4c1)构成;或者,所述导电部由支架(4c)构成。
  9. 根据权利要求7或8所述的扬声器模组(4),其特征在于,所述支撑板(4c1)上 形成有第一传音通道(4c11),且所述第二扬声器单元(4b)不覆盖所述第一传音通道(4c11)。
  10. 根据权利要求9所述的扬声器模组(4),其特征在于,所述支撑板(4c1)形成为环形以限定出所述第一传音通道(4c11),所述第二扬声器单元(4b)形成为沿所述支撑板(4c1)的周向延伸的环形以限定出避让通道(4b3),所述避让通道(4b3)与所述第一传音通道(4c11)连通。
  11. 根据权利要求7-10中任一项所述的扬声器模组(4),其特征在于,所述连接部(4c2)包括至少两个子部分(4c21),所述至少两个子部分(4c21)在所述盆架(4a24)的周向上间隔开设置,每个所述子部分(4c21)均连接在所述支撑板(4c1)的外周边缘与所述盆架(4a24)的外周面之间,每个所述子部分(4c21)上均形成有卡孔(4c211),所述盆架(4a24)的外周面上形成有与所述卡孔(4c211)配合的卡筋。
  12. 根据权利要求11所述的扬声器模组(4),其特征在于,相邻的两个所述子部分(4c21)之间可形成传声通道(4c23)。
  13. 根据权利要求12所述的扬声器模组(4),其特征在于,在平行于所述第一振膜组(4a21)的平面内,所述传声通道(4c23)的正投影的一部分位于所述第一振膜组(4a21)的正投影的外轮廓内。
  14. 根据权利要求11-13中任一项所述的扬声器模组(4),其特征在于,每个所述子部分(4c21)的位于所述第一振膜组(4a21)与所述支撑板(4c1)之间的部分上形成有第二传音通道(4c24)。
  15. 根据权利要求7-10中任一项所述的扬声器模组(4),其特征在于,所述连接部(4c2)形成为沿所述盆架(4a24)的周向延伸的闭环形,所述连接部(4c2)上形成有卡孔(4c211),所述盆架(4a24)的外周面上形成有与所述卡孔(4c211)配合的卡筋。
  16. 根据权利要求7-15中任一项所述的扬声器模组(4),其特征在于,所述连接部(4c2)的位于所述第一振膜组(4a21)与所述支撑板(4c1)之间的部分上形成有第二传音通道(4c24)。
  17. 根据权利要求14或16所述的扬声器模组(4),其特征在于,在平行于所述第一振膜组(4a21)的平面内,所述第二传音通道(4c24)的正投影位于所述第一振膜组(4a21)的正投影的外轮廓内。
  18. 根据权利要求7-17中任一项所述的扬声器模组(4),其特征在于,所述第二扬声器单元(4b)为压电陶瓷扬声器单元,所述压电陶瓷扬声器单元与所述支撑板(4c1)层叠设置。
  19. 根据权利要求7-17中任一项所述的扬声器模组(4),其特征在于,所述第二扬声器单元(4b)为动铁式扬声器单元,所述动铁式扬声器单元竖直支撑于所述支撑板(4c1)上。
  20. 根据权利要求19所述的扬声器模组(4),其特征在于,所述动铁式扬声器单元包括第二振膜组(4b21),所述第二振膜组(4b21)与所述第一振膜组(4a21)垂直设置。
  21. 根据权利要求20所述的扬声器模组(4),其特征在于,所述动铁式扬声器单元包括防护壳(4b1)、簧片(4b22)、传动杆(4b23)、第二磁路系统(4b24)和第二音圈(4b25);
    所述第二振膜组(4b21)设在所述防护壳(4b1)内以将所述防护壳(4b1)内的空间分成前腔(K1)和后腔(K2),所述簧片(4b22)、传动杆(4b23)、第二磁路系统(4b24)和第二音圈(4b25)均位于所述后腔(K2)内,所述簧片(4b22)、传动杆(4b23)、第二磁路系统(4b24)和第二音圈(4b25)配合以驱动所述第二振膜组(4b21)振动。
  22. 根据权利要求18-21中任一项所述的扬声器模组(4),其特征在于,所述第二扬声器单元(4b)的负极位于所述第二扬声器单元(4b)的邻近所述支撑板(4c1)的一端,所述支撑板(4c1)构成所述导电部的一部分,所述第二扬声器单元(4b)的负极与所述支撑板(4c1)之间通过导电胶(4e)相连。
  23. 根据权利要求1-22中任一项所述的扬声器模组(4),其特征在于,所述第二扬声器单元(4b)的发声频率大于所述第一扬声器单元(4a)的发声频率。
  24. 一种耳机(100),其特征在于,包括:
    外壳(1),所述外壳(1)上形成有出音孔(110);
    电路板,所述电路板设在所述外壳(1)内;
    根据权利要求1-23中任一项所述的扬声器模组(4),所述扬声器模组(4)设在所述外壳(1)内,且所述第一扬声器单元(4a)和所述第二扬声器单元(4b)均朝向所述出音孔(110)发声,所述扬声器模组(4)通过所述接线端子(4a25)与所述电路板电连接。
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