WO2020140458A1 - 一种扬声器装置 - Google Patents

一种扬声器装置 Download PDF

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Publication number
WO2020140458A1
WO2020140458A1 PCT/CN2019/102402 CN2019102402W WO2020140458A1 WO 2020140458 A1 WO2020140458 A1 WO 2020140458A1 CN 2019102402 W CN2019102402 W CN 2019102402W WO 2020140458 A1 WO2020140458 A1 WO 2020140458A1
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WO
WIPO (PCT)
Prior art keywords
magnetic
housing
magnetic element
speaker device
panel
Prior art date
Application number
PCT/CN2019/102402
Other languages
English (en)
French (fr)
Inventor
李朝武
李永坚
王跃强
Original Assignee
深圳市韶音科技有限公司
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 深圳市韶音科技有限公司 filed Critical 深圳市韶音科技有限公司
Publication of WO2020140458A1 publication Critical patent/WO2020140458A1/zh
Priority to US17/305,245 priority Critical patent/US11653151B2/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06—Loudspeakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H04R1/1008—Earpieces of the supra-aural or circum-aural type
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H04R1/1025—Accumulators or arrangements for charging
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H04R1/1041—Mechanical or electronic switches, or control elements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H04R1/105—Earpiece supports, e.g. ear hooks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H04R1/1058—Manufacture or assembly
    • H04R1/1075—Mountings of transducers in earphones or headphones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H04R1/1091—Details not provided for in groups H04R1/1008 - H04R1/1083
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
    • H04R25/65—Housing parts, e.g. shells, tips or moulds, or their manufacture
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
    • H04R25/65—Housing parts, e.g. shells, tips or moulds, or their manufacture
    • H04R25/658—Manufacture of housing parts
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H04R9/025—Magnetic circuit
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H04R1/1058—Manufacture or assembly
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2225/00—Details of deaf aids covered by H04R25/00, not provided for in any of its subgroups
    • H04R2225/021—Behind the ear [BTE] hearing aids
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2400/00—Loudspeakers
    • H04R2400/11—Aspects regarding the frame of loudspeaker transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2460/00—Details of hearing devices, i.e. of ear- or headphones covered by H04R1/10 or H04R5/033 but not provided for in any of their subgroups, or of hearing aids covered by H04R25/00 but not provided for in any of its subgroups
    • H04R2460/13—Hearing devices using bone conduction transducers

Definitions

  • the present application relates to a speaker device, and in particular to a speaker device with a waterproof function.
  • earphones are widely used in people's lives. For example, users can use the earphones to play music, answer calls, etc. Earphones have become an important item in people's daily lives. However, ordinary earphones have been unable to meet the normal use of users in some special scenes (for example, swimming, outdoor rainy days, etc.). At present, earphones with waterproof function and better sound quality are more popular with consumers. Therefore, it is necessary to provide a speaker device with a waterproof function.
  • An embodiment of the present specification provides a speaker device, which includes: a circuit housing for accommodating a control circuit or a battery that drives a headphone core to vibrate to generate sound; a movement housing for accommodating the earphone
  • the movement case includes a casing panel facing the human body side and a casing back opposite to the casing panel; the earphone core causes the casing panel and the casing back to vibrate, the vibration of the casing panel has In the first phase, the vibration of the back of the casing has a second phase; where the vibration of the panel of the casing and the vibration frequency of the back of the casing are between 2000 Hz and 3000 Hz, the difference between the first phase and the second phase
  • the absolute value of the value is less than 60 degrees; the earhook is used to connect the movement case and the circuit case; and the case sheath is at least partially wrapped around the periphery of the circuit case and the earhook ,
  • the casing sheath is made of waterproof material.
  • the housing sheath is a bag-like structure with one end open, so that the circuit housing enters the interior of the housing sheath via the open end of the housing sheath.
  • the open end of the housing sheath is provided with an inwardly protruding annular flange, and when the housing sheath is wrapped around the periphery of the circuit housing, the annular The flange abuts the end of the circuit housing away from the earhook.
  • a sealant is applied to the joint area of the end of the annular flange and the circuit housing away from the earhook to seal the housing sheath and the circuit housing .
  • the end of the circuit housing away from the earhook includes a first ring-shaped mesa, and the first ring-shaped mesa is snap-connected with the ring-shaped flange to sheath the housing To be targeted.
  • a positioning block extending along the direction of the circuit housing away from the earhook is provided on the first annular mesa, and the annular flange of the housing sheath is provided with the A positioning groove corresponding to the positioning block, the positioning groove is used for accommodating at least part of the positioning block to position the housing sheath.
  • the circuit housing includes two sub-housings that are engaged with each other, and the housing sheath fully covers the joint seam of the two sub-housings.
  • the joint surface between the two sub-housings includes a stepped structure that fits with each other.
  • the circuit housing is provided with a plurality of mounting holes, and a first glue groove is recessed on the outer surface of the circuit housing, and the plurality of mounting holes are located in the first glue groove
  • the speaker device further includes conductive posts inserted into the mounting holes, the housing sheath further includes exposed holes allowing the conductive posts to be exposed, wherein the first glue groove is applied with Sealant for sealingly connecting the housing sheath and the circuit housing on the periphery of the mounting hole.
  • the speaker device further includes an auxiliary sheet
  • the auxiliary sheet includes a plate body, and a hollow area is provided on the plate body, wherein the plate body is provided on an inner surface of the circuit case, And the mounting hole is located inside the hollowed-out area, and a second glue groove is formed on the periphery of the conductive post, wherein a sealant is applied in the second glue groove to align the inside of the circuit case Seal the mounting holes.
  • the movement housing is provided with a jack;
  • the earhook includes an elastic wire and a plug end provided at one end of the elastic wire, the plug end and the plug Hole plug connection.
  • a stop block is provided on the inner side wall of the socket; the plug end includes: an insertion portion that is at least partially inserted into the socket and abuts the stop block The outer surface of the; two elastic hooks, located on the side of the insertion portion facing the interior of the movement housing, the two elastic hooks can be brought together under the action of external thrust and the stop block, And after passing through the stop block, it is elastically restored to be stuck on the inner surface of the stop block, so as to realize the plugging and fixing of the movement shell and the plug end.
  • the insertion portion is partially inserted into the socket, and the exposed portion of the insertion portion is provided in a stepped manner, thereby forming a third spaced apart from the outer end surface of the movement housing Two ring-shaped mesa
  • the earhook further includes a protective sleeve disposed on the periphery of the elastic wire and the plug end, the protective sleeve further extends to the second ring-shaped mesa toward the movement housing One side of the outer end surface, and elastically abuts the movement casing when the movement casing is fixed to the insertion end.
  • the protective sleeve forms an annular abutment surface on the side of the second annular mesa facing the outer end surface of the movement housing and is located inside the annular abutment surface and is opposite to the An annular boss protruding from the annular abutment surface;
  • the movement housing includes a connection slope for connecting the outer end surface of the movement housing and the inner side wall of the socket; wherein, in the When the movement casing is fixed to the insertion end, the annular abutment surface and the annular boss respectively elastically abut the outer end surface of the movement casing and the connection slope.
  • the vibration of the housing panel has a first amplitude
  • the vibration of the back of the housing has a second amplitude
  • the ratio of the first amplitude to the second amplitude is in the range of 0.5 to 1.5.
  • the vibration of the housing panel generates a first sound leakage sound wave
  • the vibration of the back of the housing generates a second sound leakage sound wave
  • the first sound leakage sound wave and the second sound leakage sound wave are superimposed on each other, The superposition reduces the amplitude of the first sound leakage sound wave.
  • the housing panel and other parts of the housing are connected by one or any combination of glue, clamping, welding, or screw connection.
  • the housing panel and the housing back are made of fiber-reinforced plastic material.
  • the vibration of the earphone core can generate a driving force; the housing panel and the earphone core have a transmission connection; all or part of the housing panel is used to contact or bear against the user's body to conduct Sound; the area on the housing panel for contacting or abutting the user's body has a normal, and the straight line where the driving force is located is not parallel to the normal.
  • the straight line where the driving force is located has a positive direction pointing out of the speaker device through the panel, and if the normal line has a positive direction pointing out of the speaker device, then the two straight lines are sandwiched in the positive direction The angle is acute.
  • the earphone core includes a coil and a magnetic circuit system, the axis of the coil and the magnetic circuit system is not parallel to the normal; the axis is perpendicular to the radial plane of the coil and/or the radial plane of the magnetic circuit system .
  • the driving force has a component in the first quadrant and/or the third quadrant of the XOY plane coordinate system; wherein the origin O of the XOY plane coordinate system is located on the contact surface of the speaker device and the human body, and the X axis is The coronal axis of the human body is parallel, the Y axis is parallel to the sagittal axis of the human body, and the positive direction of the X axis is toward the outside of the human body, and the positive direction of the Y axis is toward the front of the human body.
  • the area on the housing panel for contacting or abutting the user's body includes a flat surface or a quasi-flat surface.
  • the earphone core further includes a magnetic circuit assembly that generates a first magnetic field
  • the magnetic circuit assembly includes: a first magnetic element that generates a second magnetic field; A magnetically conductive element; and at least one second magnetic element, the at least one second magnetic element surrounds the first magnetic element and forms a magnetic gap with the first magnetic element, the first magnetic field
  • the magnetic field strength in the magnetic gap is greater than the magnetic field strength of the second magnetic field in the magnetic gap.
  • the magnetic circuit assembly further includes: a second magnetic conductive element; and
  • At least one third magnetic element wherein the at least one third magnetic element connects the second magnetic conductive element and the at least one second magnetic element.
  • the magnetic circuit assembly further includes: at least one fourth magnetic element, wherein the at least one fourth magnetic element is located below the magnetic gap and connects the first magnetic element and the first magnetic element Two magnetic components.
  • the magnetic circuit assembly further includes: at least one fifth magnetic element, wherein the at least one fifth magnetic element is connected to the upper surface of the first magnetic conductive element.
  • the magnetic circuit assembly further includes: a third magnetically conductive element, wherein the third magnetically conductive element is connected to the upper surface of the fifth magnetic element, and the third magnetically conductive element is configured as The leakage of the field strength of the first magnetic field is suppressed.
  • the first magnetic conductive element is connected to the upper surface of the first magnetic element
  • the second magnetic conductive element includes a bottom plate and a side wall
  • the first magnetic element is connected to the second magnetic guide The bottom plate of the magnetic element.
  • the magnetic circuit assembly further includes: at least one conductive element, wherein the conductive element is connected to the first magnetic element, the first magnetic conductive element, or the second magnetic conductive element At least one element.
  • Figure 1 is the process of the speaker device causing the human ear to produce hearing
  • FIG. 2 is a schematic diagram of an explosion structure of an MP3 player according to some embodiments of the present application.
  • FIG. 3 is a schematic diagram of a partial structure of an ear hook in an MP3 player according to some embodiments of the present application.
  • FIG. 4 is a partial enlarged view of part A in FIG. 3;
  • FIG. 5 is a partial cross-sectional view of an MP3 player provided according to some embodiments of the present application.
  • FIG. 6 is a partial enlarged view of part B in FIG. 5;
  • FIG. 7 is a partial structural cross-sectional view of an MP3 player according to some embodiments of the present application.
  • FIG. 8 is a partial enlarged view of part C in FIG. 7;
  • FIG. 9 is an exploded view of a part of a circuit case and an ear hook in an MP3 player according to some embodiments of the present application.
  • FIG. 11 is a cross-sectional view of a circuit case in an MP3 player according to some embodiments of the present application.
  • FIG. 12 is a partial enlarged view of part F in FIG. 11;
  • FIG. 13 is an exploded view of a partial structure of a circuit case and a rear suspension in an MP3 player according to some embodiments of the present application;
  • FIG. 14 is a partial structural cross-sectional view of a circuit case and a rear suspension in an MP3 player according to some embodiments of the present application;
  • 15 is a schematic diagram of a partial structure of a rear suspension in an MP3 player according to some embodiments of the present application.
  • 16 is a schematic diagram of an application scenario and a structure of a speaker according to some embodiments of the present application.
  • 17 is a schematic diagram of an included angle direction according to some embodiments of the present application.
  • FIG. 18 is a schematic structural view of a bone conduction speaker acting on human skin and bones according to some embodiments of the present application.
  • FIG. 19 is an angle-relative displacement relationship diagram of a bone conduction speaker according to some embodiments of the present application.
  • 20 is a schematic diagram of a low-frequency part of a frequency response curve of a bone conduction speaker at different included angles ⁇ according to some embodiments of the present application;
  • 21 is a schematic longitudinal cross-sectional view of a bone conduction speaker according to some embodiments of the present application.
  • FIG. 22 is a schematic structural diagram of a bone conduction speaker according to some embodiments of the present application.
  • FIG. 23 is a schematic structural diagram of another bone conduction speaker according to some embodiments of the present application.
  • FIG. 24 is a schematic structural diagram of yet another bone conduction speaker according to some embodiments of the present application.
  • 25 is a schematic structural diagram of a shell of a bone conduction speaker according to some embodiments of the present application.
  • 26 is a schematic structural diagram of a bone conduction speaker according to some embodiments of the present application.
  • FIG. 27 is a schematic longitudinal cross-sectional view of a magnetic circuit assembly 2100 according to some embodiments of the present application.
  • FIG. 28 is a schematic longitudinal cross-sectional view of a magnetic circuit assembly 2600 according to some embodiments of the present application.
  • 29 is a schematic longitudinal cross-sectional view of a magnetic circuit assembly 2700 according to some embodiments of the present application.
  • FIG. 30 is a schematic longitudinal cross-sectional view of a magnetic circuit assembly 2900 according to some embodiments of the present application.
  • FIG. 31 is a schematic longitudinal cross-sectional view of a magnetic circuit assembly 3000 according to some embodiments of the present application.
  • FIG. 32 is a schematic longitudinal cross-sectional view of a magnetic circuit assembly 3100 according to some embodiments of the present application.
  • 33 is a schematic diagram showing sound transmission through air conduction according to some embodiments of the present application.
  • the speaker incorporates ambient sound pickup and processing functions to enable the speaker to function as a hearing aid.
  • a microphone such as a microphone that can pick up the sound of the surrounding environment of the user/wearer is added, and after a certain algorithm, the sound is processed (or the generated electrical signal) is transmitted to the bone conduction speaker section.
  • the bone conduction speaker can be modified to include the function of picking up environmental sounds, and after certain signal processing, the sound is transmitted to the user/wearer through the bone conduction speaker part, thereby realizing the function of the bone conduction hearing aid.
  • the algorithms described here may include noise cancellation, automatic gain control, acoustic feedback suppression, wide dynamic range compression, active environment recognition, active anti-noise, directional processing, tinnitus processing, multi-channel wide dynamic range compression, active howling One or more combinations of suppression and volume control.
  • Fig. 1 is a process in which the speaker device causes hearing in the human ear.
  • the speaker device can transmit sound to the hearing system through bone conduction or air conduction through its own speaker, thereby generating hearing.
  • the process of the speaker device making the human ear produce hearing mainly includes the following steps:
  • the speaker device may acquire or generate a signal containing sound information.
  • the sound information may refer to a video or audio file with a specific data format, or it may refer to a data or file that can generally be converted into sound through a specific channel in a general sense.
  • the signal containing sound information may come from the storage unit of the speaker device itself, or from an information generation, storage, or transmission system other than the speaker device.
  • the sound signals discussed here are not limited to electrical signals, but may include other forms such as optical signals, magnetic signals, mechanical signals, etc. in addition to electrical signals. In principle, as long as the signal contains information that the speaker device can use to generate sound, it can be processed as a sound signal.
  • the sound signal is not limited to one signal source, and may come from multiple signal sources. These multiple signal sources may or may not be related.
  • the sound signal transmission or generation method may be wired or wireless, and may be real-time or delayed.
  • the speaker device may receive electrical signals containing sound information in a wired or wireless manner, or it may directly obtain data from a storage medium to generate sound signals.
  • a component with sound collection function can be added to the bone conduction speaker. By picking up the sound in the environment, the mechanical vibration of the sound is converted into an electrical signal, which is processed by the amplifier to obtain electricity that meets specific requirements. signal.
  • wired connection includes but is not limited to the use of metal cables, optical cables or mixed metal and optical cables, such as: coaxial cables, communication cables, flexible cables, spiral cables, non-metallic sheathed cables, metal sheathed cables, multi Core cable, twisted-pair cable, ribbon cable, shielded cable, telecommunications cable, double-stranded cable, parallel twin-core conductor, and twisted pair.
  • metal cables such as: coaxial cables, communication cables, flexible cables, spiral cables, non-metallic sheathed cables, metal sheathed cables, multi Core cable, twisted-pair cable, ribbon cable, shielded cable, telecommunications cable, double-stranded cable, parallel twin-core conductor, and twisted pair.
  • wired connection medium may also be other types of transmission carriers, such as other electrical signals or optical signals.
  • Storage devices include storage devices on storage systems such as Direct Attached Storage (Direct Attached Storage), Network Attached Storage (Network Attached Storage), and Storage Area Network (Storage Area Network).
  • Storage devices include but are not limited to common types of storage devices such as solid-state storage devices (solid-state hard drives, solid-state hybrid hard drives, etc.), mechanical hard drives, USB flash drives, memory sticks, memory cards (such as CF, SD, etc.), other drives (such as CD , DVD, HD DVD, Blu-raY, etc.), random access memory (RAM) and read-only memory (ROM).
  • RAMs include but are not limited to: Decimal Counter, Selector, Delay Line Memory, Williams Tube, Dynamic Random Access Memory (DRAM), Static Random Access Memory (SRAM), Thyristor Random Access Memory (T-RAM), and Zero Capacitive random access memory (Z-RAM), etc.
  • ROM includes but is not limited to: magnetic bubble memory, magnetic button wire memory, thin film memory, magnetic plated wire memory, magnetic core memory, drum memory, optical disk drive, hard disk, magnetic tape, early stage NVRAM (non-volatile memory), phase change memory, magnetoresistive random storage memory, ferroelectric random storage memory, non-volatile SRAM, flash memory, electronic erasable rewritable read-only memory, erasable programmable read-only Memory, programmable read-only memory, shielded stack read memory, floating connection gate random access memory, nano random access memory, track memory, variable resistance memory, programmable metallization unit, etc.
  • the storage devices/storage units mentioned above are some examples, and the storage devices that the storage
  • the speaker device may convert a signal containing sound information into vibration and generate sound.
  • the generation of vibration is accompanied by the conversion of energy.
  • the speaker device can use a specific transducer to convert the signal into mechanical vibration.
  • the conversion process may involve the coexistence and conversion of many different types of energy.
  • the electrical signal can be directly converted into mechanical vibration through the transducer to generate sound.
  • the sound information is included in the optical signal, and a specific transducing device can realize the process of converting the optical signal into the vibration signal.
  • Other types of energy that can coexist and convert during the operation of the transducer include thermal energy, magnetic field energy, and so on.
  • the energy conversion means of the transducing device include, but are not limited to, moving coil type, electrostatic type, piezoelectric type, moving iron type, pneumatic type, electromagnetic type, and the like.
  • the frequency response range and sound quality of the speaker device will be affected by different transduction methods and the performance of each physical component in the transduction device.
  • the wound cylindrical coil is connected to a vibrating plate, and the coil driven by the signal current drives the vibrating plate to vibrate and sound in the magnetic field.
  • the expansion and contraction of the vibrating plate material, the deformation, size, and shape of the fold As well as the fixing method, the magnetic density of the permanent magnet, etc. will have a great influence on the final sound quality of the speaker device.
  • sound quality can be understood to reflect the quality of sound, and refers to the fidelity of audio after processing, transmission, and other processes.
  • the sound quality usually contains several aspects, including the intensity and amplitude of the audio, the frequency of the audio, the overtone or harmonic content of the audio, and so on.
  • measurement methods and evaluation criteria for objectively evaluating sound quality, as well as methods for evaluating various attributes of sound quality by combining different elements of sound and subjective feelings. Therefore, the process of sound generation, transmission and reception will affect the sound to a certain extent Sound quality.
  • the sound is transmitted through the transmission system.
  • the delivery system refers to a substance that can deliver a vibration signal containing sound information, for example, the skull of a human or/and an animal with a hearing system, a bone labyrinth, an inner ear lymph fluid, and a screw.
  • a medium that can transmit sound eg, air, liquid.
  • a bone conduction speaker is taken as an example.
  • the bone conduction speaker can directly transmit sound waves (vibration signals) converted from electrical signals to the hearing center through the bone.
  • sound waves can also be transmitted to the auditory center through air conduction.
  • air conduction please refer to the specific descriptions elsewhere in this manual.
  • the sound information is transferred to the sensor terminal. Specifically, the sound information is transmitted to the sensing terminal through the transmission system.
  • the speaker device picks up or generates a signal containing sound information, converts the sound information into sound vibration through the transducing device, and transmits the sound to the sensing terminal through the transmission system, and finally hears the sound.
  • the subject of the above-described sensing terminal, hearing system, sensory organ, etc. may be a human or an animal with a hearing system. It should be noted that the following description of the use of the speaker device by humans does not constitute a limitation on the usage scenarios of the speaker device, and similar descriptions can also be applied to other animals.
  • the speaker device may include, but is not limited to, a headset, an MP3 player, and a hearing aid.
  • an MP3 player is used as an example to specifically describe the speaker device.
  • FIG. 2 is a schematic diagram of an explosion structure of an MP3 player provided by some embodiments of the present application.
  • the MP3 player may include: an ear hanger 10, a movement housing 20, a circuit housing 30, a rear hanger 40, an earphone core 50, a control circuit 60, and a battery 70.
  • the movement casing 20 and the circuit casing 30 are respectively disposed at both ends of the earhook 10, and the rear hanger 40 is further disposed at the end of the circuit casing 30 away from the earhook 10.
  • the number of the movement housing 20 is two, which are respectively used to accommodate the earphone core 50
  • the number of the circuit housing 30 is also two, which are respectively used to accommodate the control circuit 60 and the battery 70, and the two ends of the rear hanger 40 are respectively The corresponding circuit housing 30 is connected.
  • FIG. 3 is a schematic diagram of a part of the structure of an ear hook in an MP3 player provided by some embodiments of the present application;
  • FIG. 4 is a partially enlarged view of part A in FIG. 3.
  • the earhook 10 includes an elastic wire 11, a wire 12, a fixing sleeve 13, and plug ends 14 and 15 provided at both ends of the elastic wire 11, and further includes a protective sleeve The tube 16 and the housing sheath 17 integrally formed with the protective sleeve 16.
  • the protective sleeve 16 can be formed by injection molding on the periphery of the elastic wire 11, the wire 12, the fixing sleeve 13, the connector end 14 and the connector end 15, so as to fix the protection sleeve 16 with the elastic wire 11, the wire 12, respectively
  • the sleeve 13, the plug end 14 and the plug end 15 are fixedly connected without the need to separately inject the protective sleeve 16 into the elastic metal wire 11 and the outer periphery of the plug end 14 and the plug end 15, so as to be able to
  • the manufacturing and assembly process is simplified, and in this way, the fixing of the protective sleeve 16 can be made more reliable and stable.
  • a first routing channel 141 and a second routing channel 151 are provided on the plug end 14 and the plug end 15, respectively.
  • the first routing channel 141 may include a first routing slot 1411 and a first routing hole 1412 communicating with the first routing slot 1411.
  • the wire 12 at the connector end 14 extends along the first wire groove 1411 and the first wire hole 1412 and is exposed to the outer end surface of the connector end 14 for further connection with other structures.
  • the second routing channel 151 may include a second routing slot 1511 and a second routing hole 1512 communicating with the second routing slot 1511.
  • the wire 12 at the connector end 15 extends along the second wire groove 1511 and the second wire hole 1512 and is exposed to the outer end surface of the connector end 15 for further connection with other structures.
  • the end of the wire 12 of the earhook 10 located outside the movement housing 20 can pass through the second wiring channel 151 to be further connected to the movement housing 20 such as the control circuit 60 and the battery 70 accommodated in the circuit housing 30
  • the other end of the external circuit is exposed along the first routing channel 141 to the outer end surface of the connector 14, and further enters the interior of the movement housing 20 through the connector 22 along with the insertion portion 142.
  • a housing sheath 17 provided on the side close to the plug end 15 is integrally formed with the protective sleeve 16 at the same time.
  • the housing sheath 17 can be integrally formed with the protective sleeve 16 to form a whole, and the circuit housing 30 can be connected and disposed at one end of the earhook 10 by plugging and fixing with the connector end 15, and the housing sheath 17 Then, it can be further wrapped around the outer periphery of the circuit case 30 in a set manner.
  • the protective sleeve 16 and the casing sheath 17 can be made of a soft material with a certain elasticity, such as soft silicone or rubber.
  • the movement housing 20 can be used to receive the earphone core 50 and be fixed to the plug end 14.
  • the number of the earphone core 50 and the movement shell 20 are two, respectively corresponding to the left ear and the right ear of the user.
  • the movement housing 20 is attached to the user's left and right ears, respectively.
  • the movement housing 20 may be connected to the plug end 14 by plugging, snapping, or the like to fix the movement housing 20 and the earhook 10 together. That is to say, in this embodiment, the earhook 10 and the movement housing 20 can be formed separately first, and then further assembled together instead of directly forming the two together.
  • the ear hook 10 and the movement housing 20 can be separately molded using their respective molds, without using the same larger-sized mold to integrally form the two, thereby reducing the size of the mold to reduce Difficulty in processing the mold and difficulty in forming;
  • the earloop 10 and the movement housing 20 are processed by different molds, during the manufacturing process, either the earloop 10 or the movement housing 20 needs to be processed.
  • the earhook 10 and the movement housing 20 can also be obtained by integral molding according to circumstances.
  • FIG. 5 is a partial cross-sectional view of an MP3 player provided by some embodiments of the present application;
  • FIG. 6 is a partial enlarged view of part B in FIG. 5.
  • the movement housing 20 is provided with a socket 22 communicating with the outer end surface 21 of the movement housing 20, and the inner wall of the socket 22 is provided with Stop block 23.
  • the outer end surface 21 of the movement housing 20 refers to the end surface of the movement housing 20 facing the earhook 10.
  • the socket 22 is used to provide a receiving space for the insertion end 14 of the earhook 10 to be inserted into the movement housing 20, so as to further realize the insertion and fixing of the insertion end 14 and the movement housing 20.
  • the stopper 23 may be formed by the inner side wall of the socket 22 protruding in a direction perpendicular to the inner side wall.
  • the stop block 23 may be a plurality of block-shaped protrusions arranged at intervals, or may also be an annular protrusion along the inner side wall of the socket 22, which is not specifically limited herein.
  • the plug end 14 may include an insertion portion 142 and two elastic hooks 143.
  • the insertion portion 142 is at least partially inserted into the socket 22 and abuts the outer surface 231 of the stopper 23.
  • the shape of the outer side wall of the insertion portion 142 matches the shape of the inner side wall of the socket 22, so that when the insertion portion 142 is at least partially inserted into the socket 22, the outer side wall of the insertion portion 142 and the socket 22 The inner wall of the abutment.
  • the outer side surface 231 of the stop block 23 refers to a side surface of the stop block 23 disposed toward the ear hook 10.
  • the insertion portion 142 may further include an end surface 1421 facing the movement housing 20, and the end surface 1421 may match the outer side surface 231 of the stopper 23 so that when the insertion portion 142 is at least partially inserted into the socket 22, the insertion portion The end surface 1421 of 142 is in contact with the outer surface 231 of the stopper 23.
  • the two elastic hooks 143 may be arranged side by side and spaced perpendicular to the insertion direction and symmetrically disposed on the side of the insertion portion 142 facing the interior of the movement housing 20.
  • Each elastic hook 143 may include a beam portion 1431 and a hook portion 1432 respectively.
  • the beam portion 1431 and the insertion portion 142 are connected to a side of the movement housing 20.
  • the hook portion 1432 is disposed on the beam portion 1431 away from the insertion portion 142 One end and extend perpendicular to the insertion direction.
  • each hook portion 1432 is provided with a transition slope 14321 connecting a side surface parallel to the insertion direction and an end surface away from the insertion portion 142.
  • the plug end 14 gradually enters the interior of the movement housing 20 from the jack 22 and reaches the stop
  • the hook portions 1432 of the two elastic hooks 143 will be blocked by the stop block 23.
  • the stop block 23 gradually presses the transition slope 14321 of the hook portion 1432 to make the two
  • the elastic hook 143 is elastically deformed to be close to each other.
  • the elastic hook 143 loses the blocking of the stop block 23 And the elastic recovery, and snapped on the inner surface of the stop block 23 toward the inside of the movement housing 20, so that the stop block 23 is snapped between the insertion portion 142 and the hook portion 1432 of the connector end 14, thereby achieving
  • the movement housing 20 is fixedly connected to the connector 14.
  • the insertion portion 142 is partially inserted into the socket 22, and the exposed portion of the insertion portion 142 is provided in a stepped shape, thereby forming and An annular mesa 1422 provided at an interval on the outer end surface 21 of the movement housing 20.
  • the exposed portion of the insertion portion 142 refers to the portion of the insertion portion 142 exposed from the movement housing 20, and may refer to the portion exposed from the movement housing 20 and close to the outer end surface of the movement housing 20.
  • the ring-shaped mesa 1422 may be disposed opposite to the outer end surface 21 of the movement housing 20, and the interval between the two may refer to the interval along the insertion direction and the interval perpendicular to the insertion direction.
  • the protective sleeve 16 extends to the side of the annular mesa 1422 facing the outer end surface 21 of the movement housing 20, and when the jack 22 of the movement housing 20 is fixed to the insertion end 14 , Filled in the gap between the ring-shaped mesa 1422 and the outer end surface 21 of the movement housing 20, and elastically abuts the movement housing 20, so that it is difficult for external liquid from the connector end 14 and the movement housing 20 The joint between the two enters the interior of the movement housing 20, thereby achieving the sealing between the plug end 14 and the jack 22, to protect the headphone core 50 inside the movement housing 20, etc., which can improve the MP3 player’s Waterproof effect.
  • FIG. 7 is a partial cross-sectional view of an MP3 player provided by some embodiments of the present application;
  • FIG. 8 is a partial enlarged view of part C in FIG. 7.
  • the protective sleeve 16 forms an annular abutment surface 161 on the side of the annular mesa 1422 facing the outer end surface 21 of the movement housing 20.
  • the annular contact surface 161 is the end surface of the protection sleeve 16 facing the movement housing 20 side.
  • the protective sleeve 16 further includes an annular boss 162 located inside the annular abutment surface 161 and protrudingly disposed relative to the annular abutment surface 161.
  • the annular boss 162 is specifically formed on the side of the annular abutment surface 161 facing the plug end 14, and protrudes from the annular abutment surface 161 in the direction toward the movement housing 20.
  • the annular boss 162 can also be directly formed on the periphery of the annular mesa 1422 and cover the annular mesa 1422.
  • the movement housing 20 may include a connection slope 24 for connecting the outer end surface 21 of the movement housing 20 and the inner side wall of the socket 22.
  • the connection slope 24 is specifically a transition surface between the outer end surface 21 of the movement housing 20 and the inner wall of the socket 22, and the connection slope 24 and the outer end surface 21 of the movement housing 20 and the socket 22 Are not on the same plane.
  • the connecting inclined surface 24 may be a flat surface, or may be set as a curved surface or other shapes according to actual requirements, which is not specifically limited here.
  • the annular abutment surface 161 and the annular boss 162 elastically abut the outer end surface of the movement housing 20 and the connection inclined surface 24, respectively. It should be noted here that since the outer end surface 21 of the movement housing 20 and the connecting slope 24 are not on the same plane, the elastic abutment between the protective sleeve 16 and the movement housing 20 is not on the same plane , So that it is difficult for external liquid to enter the movement housing 20 from the protective sleeve 16 and the movement housing 20 to further enter the earphone core 50, so that the waterproof effect of the MP3 player can be improved to protect the internal functional structure Function, thereby extending the life of MP3 players.
  • the insertion portion 142 is further formed with an annular groove 1423 adjacent to the annular mesa 1422 on the side of the annular mesa 1422 facing the outer end face 21 of the movement housing 20,
  • the annular boss 162 may be formed in the annular groove 1423.
  • an annular groove 1423 may be formed on the side of the annular mesa 1422 facing the movement housing 20.
  • the ring-shaped mesa 1422 is a side wall surface of the ring-shaped groove 1423 facing the movement housing 20 side.
  • the ring-shaped boss 162 is formed in the ring-shaped groove 1423 along the side wall surface.
  • FIG. 9 is a partial exploded view of a circuit case and an ear hook in an MP3 player provided by some embodiments of the present application
  • FIG. 10 is a partial cross-sectional view of a partial structure of an MP3 player provided by some embodiments of the present application.
  • the circuit housing 30 is plugged and fixed with the connector 15, thereby fixing the circuit housing 30 on the earhook 10 away from the movement housing 20 One end.
  • the circuit case 30 containing the battery 70 and the circuit case 30 containing the control circuit 60 may correspond to the left and right sides of the user, respectively, and the two are connected to the corresponding connector 15 The way can be different.
  • the circuit housing 30 can be connected to the plug end 15 by plugging, snapping, or the like.
  • the earhook 10 and the circuit housing 30 can be separately molded first, and then assembled together after the molding is completed, instead of directly molding the two together.
  • the ear hanger 10 and the circuit case 30 can be molded separately using their respective molds, without the need to use the same larger-sized mold to integrally mold the two, thereby reducing the size of the molding mold to reduce Difficulty in processing the mold and difficulty in forming;
  • the shape of the earloop 10 or the circuit case 30 needs to be shaped. Or when the structure is adjusted, only the mold corresponding to the structure needs to be adjusted without adjusting the mold of another structure, so that the production cost can be reduced.
  • the circuit housing 30 is provided with a socket 31, the shape of the inner surface of the socket 31 can match the shape of at least part of the outer surface of the connector 15, so that the connector 15 can at least Partially inserted into the jack 31.
  • the opposite sides of the plug end 15 are respectively provided with slots 152 that are perpendicular to the insertion direction of the plug end 15 relative to the insertion hole 31.
  • the two slots 152 are symmetrically and spaced apart on opposite sides of the plug end 15, and both communicate with the side wall of the plug end 15 in a vertical direction along the insertion direction.
  • the circuit housing 30 may be provided in a flat shape.
  • the cross-section of the circuit housing 30 at the second socket 31 may be elliptical, or may be formed in a flat shape.
  • two opposing side walls with a larger area of the circuit housing 30 are the main side walls 33, and a smaller area connecting the two main side walls 33 and the two opposite side walls are the auxiliary sides ⁇ 34 ⁇ Wall 34.
  • the first side wall 30a of the circuit case 30 may be either the main side wall 33 of the circuit case 30 or the auxiliary side wall 34 of the circuit case 30, which can be set according to actual needs.
  • the cross-section of the circuit housing 30 at the socket 31 may also be circular or other shapes, which can be set according to actual needs.
  • the MP3 player may further include a fixing member 81.
  • the fixing member 81 includes two pins 811 arranged in parallel and a connecting portion 812 for connecting the pins 811.
  • the connecting portion 812 may be vertically connected to one end of the two pins 811 facing the same direction, thereby forming a U-shaped fixing member 81.
  • the first side wall 30a of the circuit housing 30 is provided with two through holes 32 corresponding to the positions of the two slots 152 and penetrating the first side wall 30a.
  • the ends of the two pins 811 far away from the connection part 812 are inserted into the slot 152 from the outside of the circuit case 30 through the through hole 32, and the connection part 812 is blocked outside the circuit case 30, thereby achieving The plug of the plug end 15 is fixed.
  • the first side wall 30a of the circuit housing 30 is further formed with a strip-shaped groove 35 for connecting the two through-holes 32.
  • the fixing member 81 is used for plugging and fixing
  • the connecting portion 812 can be further partially Or all sink into the strip groove 35. Therefore, on the one hand, the overall MP3 player can be more unified, so that it is not necessary to specially form a groove corresponding to the connection part 812 on the housing sheath 17 that is fitted on the periphery of the circuit housing 30, simplifying the mold of the housing sheath 17; On the other hand, it can also reduce the space occupied by the MP3 player to a certain extent.
  • the fixing member 81 can be fixed On the circuit housing 30, so that the connection between the connector 15 and the connector 31 is more stable; on the other hand, after the connection portion 812 is sunk into the strip groove 35, the recess The groove 35 is filled to be consistent with the first side wall 30a of the circuit housing 30, so that after the housing sheath 17 is sleeved, the groove 35 and the surrounding structure are more evenly connected.
  • the second side wall 30 b of the circuit housing 30 opposite to the first side wall 30 a of the circuit housing 30 is further provided with a passage opposite to the through hole 32
  • the hole 36 and the pin 811 are further inserted into the through hole 36 through the slot 152.
  • both the first side wall 30 a of the circuit case 30 and the second side wall 30 b of the circuit case 30 may be the main side wall 33 or the auxiliary side wall 34 of the circuit case 30.
  • the first side wall 30a and the second side wall 30b of the circuit case 30 are respectively two oppositely arranged main side walls 33, two through holes 32 and two through holes 36 of the circuit case 30 They are respectively arranged on the side walls of the circuit housing 30 with a larger area, and a larger gap can be provided between the two pins 811 of the fixing member 81 to increase the span of the fixing member 81, so as to increase the plug end 15 Stability of connection with the socket 31.
  • the pin 811 is inserted into the slot 152 through the through hole 32, and further inserted into the through hole 36 through the slot 152, that is to say, the pin 811 can connect the two opposite main side walls 33 of the circuit housing 30 and The plug end 15 is completely penetrated and fixed together, so that the plug between the plug end 15 and the circuit case 30 can be more firmly fixed.
  • a housing sheath 17 provided on the side close to the connector end 15 is integrally formed with the protective sleeve 16 at the same time.
  • the housing sheath 17 and the circuit housing 30 are separately formed, and the shape of the inner side wall of the housing sheath 17 is matched with the outer side wall of the circuit housing 30, and then after the two are formed separately, the shell
  • the body sheath 17 covers the periphery of the circuit case 30 in a sleeved manner.
  • the circuit case 30 and the case sheath 17 are formed separately, and then put together, so as to avoid damage to the control circuit 60 or the battery 70 caused by high temperature when the case sheath 17 is formed, thereby reducing The adverse effect of molding on the control circuit 60 or the battery 70.
  • the case sheath 17 may be a bag-like structure with one end open, so that the circuit case 30 enters the inside of the case sheath 17 via the open end of the case sheath 17.
  • the housing sheath 17 can be removed from the mold by rolling the housing sheath 17 from the open end; 17
  • the casing sheath 17 can be further set on the preset structure through the opening for operation, and after the operation is completed, the casing sheath 17 can be further performed from the opening Turn it over to remove it from the preset structure; after the inspection and processing operations are completed, the housing sheath 17 can be further fitted around the circuit housing 30 through the opening.
  • removing the casing sheath 17 is not limited to the above-mentioned method of rolling, and may also be by means of inflation, etc., which is not specifically limited here.
  • the open end of the housing sheath 17 is the end of the housing sheath 17 facing away from the protective sleeve 16, so that the circuit housing 30 enters the housing sheath 17 from the end of the housing sheath 17 away from the protective sleeve 16
  • the inside of the housing is thought to be covered by the casing sheath 17.
  • FIG. 11 is a partially enlarged view of part E in FIG. 2. 1 and 11, in some embodiments, the open end of the housing sheath 17 is provided with an annular flange 171 protruding inward. Further, the end of the circuit case 30 away from the earhook 10 is arranged in a stepped manner, thereby forming an annular mesa 37. When the casing sheath 17 covers the periphery of the circuit casing 30, the annular flange 171 abuts on the annular mesa 37.
  • the annular flange 171 is formed by the inner wall surface of the open end of the housing sheath 17 protruding toward the inside of the housing sheath 17 by a certain thickness, and includes a flange surface 172 facing the earhook 10.
  • the ring-shaped mesa 37 is opposed to the flange surface 172 and faces the direction of the circuit housing 30 away from the ear hook 10.
  • sealant may be further applied in the joint area between the annular flange 171 and the annular mesa 37. Specifically, when the housing sheath 17 is fitted, a sealant may be coated on the ring-shaped mesa 37, thereby sealingly connecting the housing sheath 17 and the circuit housing 30.
  • the circuit housing 30 is further provided with a positioning block 38 which is disposed on the ring-shaped mesa 37 and extends in the direction of the circuit housing 30 away from the ear hook 10.
  • the positioning block 38 may be disposed on the auxiliary side wall 34 of the circuit case 30, and the thickness of the positioning block 38 protruding from the auxiliary side wall 34 is consistent with the height of the annular mesa 37.
  • the number of the positioning blocks 38 may be one or more according to requirements.
  • the annular flange 171 of the housing sheath 17 is provided with a positioning groove 173 corresponding to the positioning block 38, so that when the housing sheath 17 is wrapped around the periphery of the circuit housing 30, the positioning The groove 173 covers at least part of the positioning block 38.
  • the housing sheath 17 can be positioned according to the positions of the positioning block 38 and the positioning groove 173, so that the operator can quickly and accurately install it.
  • the positioning block may not be provided according to actual requirements.
  • FIG. 11 is a cross-sectional view of a circuit case in an MP3 player provided by some embodiments of the present application;
  • FIG. 12 is a partially enlarged view of part F in FIG. 11.
  • the circuit housing 30 includes two sub-housings that are fastened to each other, namely a first sub-housing 301 and a second sub-housing 302.
  • the two sub-housings may be symmetrically fastened along the center line of the circuit housing 30, or may be fastened in other ways according to actual needs.
  • the two sub-cases of the circuit case 30 for accommodating the control circuit 60 may be fastened in the same manner as the two sub-cases of the circuit case 30 for accommodating the battery 70, or may be different.
  • the ring-shaped mesa 37 of the circuit housing 30 may be formed on the first sub-housing 301, and the two sub-housings are joined on the side of the ring-shaped mesa 37 facing the earhook 10, thereby enabling the housing sheath 17
  • the joints of the two sub-cases are fully covered, so that the internal space of the circuit case 30 can be sealed to a certain extent, so as to improve the waterproof effect of the MP3 player.
  • the ring-shaped mesa 37 of the circuit housing 30 may also be formed by two sub-housings, so that at least part of the two are joined on the side of the ring-shaped mesa 37 facing away from the earloop 10.
  • the casing sheath 17 cannot cover the joint seam of the two sub-casings on the side of the ring-shaped mesa 37 facing away from the ear hook 10.
  • the joint seam of this part can be further covered by other methods.
  • the joint surfaces of the two sub-housings butted against each other have a stepped shape that fits with each other.
  • the end surface of the first sub-housing 301 facing the second sub-housing 302 is a stepped first stepped surface 3011
  • the end surface of the second sub-housing 302 facing the first sub-housing 301 is a stepped first Second step surface 3021.
  • the first stepped surface 3011 and the second stepped surface 3021 have the same shape and size, so that they can be matched and abutted together.
  • the joint surfaces of the two sub-housings of the circuit housing 30 are stepped and not on the same plane, so that the liquid outside the circuit housing 30 can be blocked from entering the inside of the circuit housing 30 from the periphery of the circuit housing 30, and
  • the waterproof effect of the MP3 player is further improved to protect the control circuit 60 or the battery 70 inside the circuit case 30.
  • a mounting hook 3022 facing the first sub-housing 30a is provided on the second step surface 3021 of the second sub-housing 302.
  • the interior of the first sub-housing 301 is provided with The mounting hook 3022 matches the mounting hook groove 3012.
  • the mounting hook 3022 can enter the mounting hook groove 3012 under the external thrust beyond the outer side wall of the mounting hook groove 3012, and make the mounting hook 3022 The hook portion is hooked to the inner side wall of the mounting groove 3012, so as to realize the buckling of the first sub-housing 301 and the second sub-housing 302.
  • FIG. 13 is an exploded view of a partial structure of a circuit case and a rear mount in an MP3 player provided by some embodiments of the present application
  • FIG. 14 is a partial structural cross-section of a circuit case and a rear mount in an MP3 player provided by some embodiments of the present application 15
  • FIG. 15 is a partial structural diagram of the rear hanging in the MP3 player provided by some embodiments of the present application.
  • the circuit housing 30 is further provided with a plug end 3 a at the end away from the earhook 10, and the rear hanger 40 includes an elastic wire 41 and an elastic The plug ends 42 at both ends of the metal wire 41, wherein the plug end 3a and the plug end 42 are plugged and fixed to each other.
  • the corresponding movement shell 20, the ear hanger 10 and the circuit shell 30 are also set to the left and right, and the rear hanger 40 passes through the two circuit shells respectively
  • the movement housing 20, the earhook 10, and the circuit housing 30 on both sides are connected together in a plug-and-fix manner, and are suspended and arranged on the back side of the user's head when the user wears it.
  • the plug ends 42 can be formed on both ends of the elastic wire 41 by injection molding. Specifically, the plug end 42 may be made of plastic or other materials.
  • the socket 42 is provided with a socket 421, and the socket 3a is at least partially inserted into the socket 421.
  • the socket 3a may be specifically disposed on the ring-shaped mesa 37 facing away from the ear Hang 10 on one side.
  • the manner of connection between the plug end 3a and the jack 421 and the manner of connection between the plug end 15 and the jack 31 may be the same or different.
  • the opposite sides of the plug end 3a are respectively provided with slots 3a1 that are perpendicular to the insertion direction of the plug end 3a relative to the insertion direction of the receptacle 421.
  • the two slots 3a1 may be spaced and symmetrically arranged on both sides of the connector 3a. Further, the two slots 3a1 may both communicate with the corresponding side wall of the connector 3a in a direction perpendicular to the insertion direction.
  • the first side wall 422 of the plug end 42 is provided with a through hole 423 corresponding to the positions of the two slots 3a1.
  • the plug end 42 includes a surrounding side wall for defining the socket 421, and the first side wall 422 of the plug end 42 may be plugged when the plug end 3a is fixed to the plug end 42 The side wall of the end 42 that can intersect the extending direction of the slot 3a1.
  • the MP3 player further includes a fixing member 88, and the fixing member 88 includes two pins 881 arranged in parallel and a connecting portion 882 for connecting the pins 881.
  • the two pins 881 are arranged in parallel, and the connecting portion 882 can be vertically connected on the same side of the two pins 881, thereby forming a U-shaped fixing member 88 similar in shape to the fixing member 81.
  • the shape of the fixing member 88 may be similar to that of the fixing member 81, but the specific size parameters can be adapted to the surrounding structure and different.
  • the length of the pin 881 is greater than the length of the pin 811, and the length of the connecting portion 812 is less than
  • the length and the like of the connecting portion 882 are not specifically limited here.
  • the pin 881 can be inserted into the slot 3a1 from the outside of the plug end 42 through the through hole 423, and the connecting portion 882 is blocked outside the plug end 3a, thereby achieving the plug end 42 and the plug end The connection of 3a is fixed.
  • the fixing member 88 of the MP3 player includes two pins 881 arranged in parallel and a connecting portion 882 for connecting the pin 881, so that the fixing member 88 connects the plug end 3a and the plug end 42 over a certain span Plug fixing, so that the fixing between the circuit case 30 and the rear hanger 40 is more stable and reliable; and the fixing member 88 has a simple structure and is easy to insert and remove, thereby making the plug between the plug end 3a and the plug end 42 It is detachable and can make the assembly of MP3 players more convenient.
  • the second side wall 424 of the plug end 42 opposite to the first side wall 422 is further provided with a through hole 425 opposite to the through hole 423, and the pin 881 is further inserted into the through hole 425 through the slot 3a1 Inside.
  • the pin 881 is inserted into the slot 3a1 through the through hole 423, and further inserted into the through hole 425 through the slot 3a1, that is to say, the pin 881 can connect the two opposite ends 42 of the rear hanging 40
  • the side wall and the plug end 3a are completely penetrated and connected together, so that the plug between the circuit case 30 and the rear hanger 40 can be made stronger.
  • the plug end 3a is further divided into a first plug section 3a2 and a second plug section 3a3 along the insertion direction of the plug end 3a with respect to the socket 421.
  • the plug end 3a may be disposed on the side of the end of the circuit case 30 close to the auxiliary side wall 34, and the auxiliary side wall 34 may specifically be opposite to the auxiliary side wall 34 where the positioning block 38 in the above embodiment is located ⁇ finite secondary wall 34.
  • the first plug-in segment 3a2 and the second plug-in segment 3a3 may be arranged stepwise along the insertion direction of the plug-in end 3a relative to the plug-in hole 421 on the side close to the positioning block 38, so that In the cross-sectional direction perpendicular to the insertion direction, the cross section of the first plug section 3a2 is larger than the cross section of the second plug section 3a3.
  • the socket 421 is further divided into the first hole segment 4211 and the first hole segment 4211 and the second plug segment 3a3 matching the shape of the first plug segment 3a2 and the second plug segment 3a3 along the insertion direction of the plug end 3a with respect to the plug receptacle 421
  • Two hole segments 4212 so that when the plug end 3a is inserted into the socket 421, the first plug segment 3a2 and the second plug segment 3a3 are inserted into the first hole segment 4211 and the second hole segment 4212, respectively .
  • the slot 3a1 may be disposed on the first plug section 3a2.
  • the slot 3a1 may be along the direction from the plug end 3a to the positioning block 38, that is, the two auxiliary side walls of the circuit housing 30 34 extends in opposite directions so as to penetrate the two side walls of the first plug section 3a2 perpendicular to the main side wall 33 of the circuit housing 30, and further penetrate the first plug section 3a2 in the vertical insertion direction parallel to the circuit Both side walls of the main side wall 33 of the housing 30.
  • the through hole 423 provided on the plug end 42 may correspond to the side of the slot 3a1 facing the positioning block 38, and the through hole 425 may correspond to the side of the slot 3a1 away from the positioning block 38.
  • the top sides of the first patch section 3a2 and the second patch section 3a3 are coplanar with each other.
  • the top sides of the first plug-in segment 3a2 and the second plug-in segment 3a3 refer to the sides of the first plug-in segment 3a2 and the second plug-in segment 3a3 facing the top side of the head when the user normally wears the MP3 player
  • the side that is, the side opposite to the stepped shape formed by the first connection section 3a2 and the second connection section 3a3.
  • the top sides of the first patch section 3a2 and the second patch section 3a3 are coplanar and formed with a routing slot 3a4 for receiving wires.
  • the cable trough 3a4 can extend along the connecting direction of the connecting end 3a and the connecting jack 421, and can be used to accommodate the wires connecting the control circuit 60 and the battery 70 through the rear hook 40.
  • the plug end 3a can be inserted into the socket 421 first, and then inserted into the slot 3a1 from the side of the first plug section 3a2 facing the positioning block 38.
  • the plug end 3a is provided on the side of the end face of the circuit case 30 facing the rear hanger 40 away from the positioning block 38, therefore, the side of the plug end 3a facing the positioning block 38 also has There is a certain space, so that when the circuit housing 30 and the rear hanger 40 are plugged and installed, the fixing member 88 can be moved from the bottom side of the plug end 3a2, that is, the side of the first plug segment 3a2 toward the positioning block 38
  • the through hole 423 is inserted into the slot 3a1 and further inserted into the through hole 425, so as to realize the insertion fixing of the circuit case 30 and the rear hanger 40.
  • the fixing member 88 can be completely hidden in the internal space formed by the circuit case 30 and the rear hanger 40 without being exposed, so that no additional space is required.
  • the rear hanger 40 further includes a second protective sleeve 43 injected around the elastic wire 41 and the connector 42 and an end protective cover 44 integrally formed with the second protective sleeve 43.
  • the materials of the second protective sleeve 43 and the end protective cover 44 can be the same as the materials of the protective sleeve 16 and the casing sheath 17, for example, they can be soft materials with a certain elasticity, such as soft silicone , Rubber, etc.
  • the end protection cover 44 can be specifically formed on both ends of the elastic wire 41, and can be integrally formed with the plug ends 42 located on both ends of the elastic wire 41 on the periphery of the plug end 42. It should be noted here that the housing sheath 17 is only wrapped by the end of the circuit housing 30 facing the earhook 10 to the circular mesa 37 of the circuit housing 30, therefore, the circular mesa 37 of the circuit housing 30 faces backward The part of the hanger 40 is exposed on the periphery of the casing sheath 17.
  • the shape of the inner side wall formed by the end protection cover 44 and the plug end 42 matches the shape of the exposed end of the circuit case 30 to further cover the exposed circuit case 30, and the end surface of the end protection cover 44 facing the circuit case 30 elastically abuts the end surface of the case sheath 17 facing the rear hanger 40 to further provide a seal.
  • the above description of the MP3 player is only a specific example and should not be regarded as the only feasible implementation. Obviously, for professionals in the field, after understanding the basic principles of MP3 players, it is possible to carry out various forms and details on the specific ways and steps of implementing MP3 players without departing from this principle. Amendments and changes, but these amendments and changes are still within the scope of the above description.
  • the shape of the insertion hole 22 may be circular, and the shape of the insertion hole 22 may also be irregular circular (the inner wall of the insertion hole 22 is tooth-shaped). Such deformations are within the scope of protection of this application.
  • the bone conduction speaker may include a driving device 1601, a transmission component 1602, and a panel 1603 (the panel 1603 may also be referred to as a housing panel, which is a panel on the movement housing 20 facing the human body side ), and the housing 1604, etc.
  • the housing 1604 may include a housing back and a housing side, and the panel 1603 is connected to the panel 1603 through the housing back through the housing back.
  • the driving device 1601 may transmit the vibration signal to the panel 1603 and/or the housing 1604 through the transmission assembly 1602, thereby transmitting sound to the human body through contact with the panel 1603 or the housing 1604 and the human skin.
  • the panel 1603 and/or the housing 1604 of the bone conduction speaker may be in contact with human skin at the tragus, thereby transmitting sound to the human body.
  • the panel 1603 and/or the housing 1604 may also be in contact with human skin on the back side of the auricle.
  • the driving force generated by the driving device 1601 lies on a straight line B (or the vibration direction of the driving device), which has an angle ⁇ with the normal A of the panel 1603.
  • line B is not parallel to line A.
  • the panel has an area that contacts or abuts the user's body, such as human skin. It should be understood that when the panel is covered with other materials (such as soft materials such as silica gel) to enhance the user's wearing comfort, the relationship between the panel and the user's body is not direct contact, but is against each other. In some embodiments, when the bone conduction speaker is worn on the user's body, the entire area of the panel comes into contact with or abuts the user's body.
  • a partial area of the panel contacts or abuts the user's body.
  • the area on the panel for contacting or abutting the user's body may occupy more than 50% of the entire panel area, and more preferably, may occupy more than 60% of the panel area.
  • the area on the panel that contacts or abuts the user's body can be flat or curved.
  • the normal when the area on the panel for contacting or abutting the user's body is a plane, its normal meets the general definition of normal, which is a dashed line perpendicular to the plane. In some embodiments, when the area on the panel used to contact or abut the user's body is a curved surface, the normal is the average normal of the area. Among them, the definition of the average normal is as follows:
  • the curved surface is a quasi-plane close to a flat surface, that is, a surface whose angle between the normal at any point in at least 50% of the curved surface and its average normal is less than a set threshold.
  • the set threshold is less than 10°. In some embodiments, the set threshold may be further less than 5°.
  • the straight line B where the driving force lies and the normal A'of the area on the panel 1603 for contacting or abutting the user's body have the included angle ⁇ .
  • the numerical range of the included angle ⁇ may be 0 ⁇ 180°, and further the numerical range may be 0 ⁇ 180° and not equal to 90°.
  • the straight line B is set to have a positive direction pointing out of the bone conduction speaker, and the normal A of the panel 1603 (or the normal A'of the contact surface of the panel 1603 with the human skin) is also set to point out of the bone conduction speaker
  • the angle ⁇ formed by the normal A or A'and the straight line B in its positive direction is an acute angle, that is, 0 ⁇ 90°. More descriptions about normal A and normal A'can be found in FIG. 18 and related descriptions, and will not be repeated here.
  • the driving force generated by the driving device has a component in the first quadrant and/or the third quadrant of the XOY plane coordinate system.
  • the XOY plane coordinate system is a reference coordinate system, its origin O is located after the bone conduction speaker is worn on the human body, the contact surface of the panel and/or the shell and the human body, the X axis is parallel to the human crown axis, and the Y axis is parallel to the human body vector
  • the shape axis is parallel, and the positive direction of the X axis faces the outside of the human body, and the positive direction of the Y axis faces the front of the human body.
  • the quadrant should be understood as the four areas divided by the horizontal axis (such as the X axis) and the vertical axis (such as the Y axis) in the plane rectangular coordinate system, and each area is called a quadrant.
  • the quadrant is centered on the origin, and the X and Y axes are the dividing lines.
  • the upper right (the area surrounded by the positive half axis of the X axis and the positive half axis of the Y axis) is called the first quadrant, and the upper left (the area surrounded by the negative half axis of the X axis and the positive half axis of the Y axis) is called The second quadrant, the lower left (the area enclosed by the negative half axis of the X axis and the negative half axis of the Y axis) is called the third quadrant, and the lower right (the positive half axis of the X axis is surrounded by the negative half axis of the Y axis) Is called the fourth quadrant.
  • the point on the coordinate axis does not belong to any quadrant.
  • the driving force in this embodiment may be directly located in the first quadrant and/or the third quadrant of the XOY plane coordinate system, or the driving force may be in other directions, but in the XOY plane coordinate system
  • the projection or component in the first quadrant and/or the third quadrant is not 0, and the projection or component in the Z-axis direction may be 0 or not 0.
  • the Z axis is perpendicular to the XOY plane and passes through the origin O.
  • the minimum angle ⁇ between the straight line where the driving force is located and the normal to the area of the panel that contacts or abuts the user's body can be any acute angle, for example, the range of the angle ⁇ is preferably 5° ⁇ 80°; more preferably 15° to 70°; still more preferably 25° to 60°; still more preferably 25° to 50°; still more preferably 28° to 50°; still more preferably 30° to 39°; still more preferably 31° to 38°; more preferably 32° to 37°; more preferably 33° to 36°; more preferably 33° to 35.8°; more preferably 33.5° to 35°.
  • the included angle ⁇ may be 26°, 27°, 28°, 29°, 30°, 31°, 32°, 33°, 34°, 34.2°, 35°, 35.8°, 36°, 37° or 38°, etc., the error is controlled within 0.2 degrees.
  • the driving force direction should not be understood as the limitation of the driving force in this application.
  • the driving force may also have a component in the second and fourth quadrants of the XOY plane coordinate system Even the driving force can be located on the Y axis and so on.
  • FIG. 18 is a schematic structural view of a bone conduction speaker provided by some embodiments of the present application acting on human skin and bones.
  • the straight line where the driving force is located is collinear or parallel to the straight line where the driving device vibrates.
  • the direction of the driving force may be the same as or opposite to the vibration direction of the coil and/or the magnetic circuit assembly.
  • the panel may be flat or curved, or have several protrusions or grooves on the panel.
  • the normal of the area on the panel that contacts or abuts the user's body is not parallel to the line where the driving force is located.
  • the area on the panel that contacts or abuts the user's body is relatively flat, which may be a flat surface or a quasi-flat surface with little change in curvature.
  • the normal at any point on the panel can be used as the normal of the area.
  • the normal A of the panel 1603 and the panel 1603 are The normal A'of the human skin contact surface may be parallel or coincident.
  • the normal of the area may be its average normal. For the detailed definition of the average normal, please refer to the related description in FIG. 16, which will not be repeated here.
  • the normal of the area can also be determined as follows, selecting a certain point in an area when the panel is in contact with human skin, Determine the tangent plane of the panel at this point, and then determine the straight line that is perpendicular to the tangent plane at this point, and use this straight line as the normal of the panel.
  • the selected point is different, and the panel cuts out at this point.
  • the normals determined will also be different.
  • the normal A'at this time is The normal A of the panel is not parallel.
  • the straight line where the driving force is located (or the straight line where the driving device vibrates) has an angle ⁇ with the normal to the area, and the included angle is 0 ⁇ 180°.
  • the specified driving force line has a positive direction pointing out of the bone conduction speaker through the panel (or the contact surface of the panel and/or the casing with the human skin)
  • the designated panel or the panel and/or the casing is in contact with the human skin
  • the surface) normal has a positive direction pointing out of the bone conduction speaker, and the angle formed by these two straight lines in the positive direction is an acute angle.
  • the bone conduction speaker includes a driving device (also referred to as a transducing device in other embodiments), a transmission assembly 1803, a panel 1801, and a housing 1802.
  • the coil 1804 and the magnetic circuit assembly 1807 are both ring-shaped structures.
  • the driving device is a moving coil driving method, including a coil 1804 and a magnetic circuit assembly 1807.
  • the coil 1804 and the magnetic circuit assembly 1807 have mutually parallel axes, and the axis of the coil 1804 or the magnetic circuit assembly 1807 is perpendicular to the coil 1804 radial plane and/or the magnetic circuit assembly 1807 radial plane. In some embodiments, the coil 1804 and the magnetic circuit assembly 1807 have the same central axis, the central axis of the coil 1804 is perpendicular to the radial plane of the coil 1804, and passes through the geometric center of the coil 1804, the central axis of the magnetic circuit assembly 1807 and the magnetic circuit The radial plane of the component 1807 is perpendicular and passes through the geometric center of the magnetic circuit component 1807. The axis of the coil 1804 or the magnetic circuit assembly 1807 and the normal of the panel 1801 have the aforementioned angle ⁇ .
  • the relationship between the driving force F and the skin deformation S will be described below in conjunction with FIG. 18.
  • the driving force generated by the driving device lies on a line parallel to the normal line of the panel 1801 (that is, the angle ⁇ is zero)
  • the relationship between the driving force and the total skin deformation is:
  • F ⁇ is the driving force
  • S ⁇ is the total deformation of the skin in the direction perpendicular to the skin
  • E is the elastic modulus of the skin
  • A is the contact area between the panel and the skin
  • h is the total thickness of the skin (that is, the panel and bone the distance between).
  • F // is the magnitude of the driving force
  • S // is the total deformation of the skin in the direction parallel to the skin
  • G is the shear modulus of the skin
  • A is the contact area between the panel and the skin
  • h is the total thickness of the skin (i.e. The distance between the panel and the bone).
  • ⁇ is the Poisson's ratio of the skin 0 ⁇ ⁇ 0.5, so the shear modulus G is less than the elastic modulus E, corresponding to the total deformation of the skin under the same driving force S // > S ⁇ .
  • the Poisson's ratio of the skin is close to 0.4.
  • FIG. 19 is an angle-relative displacement relationship diagram of a bone conduction speaker according to some embodiments of the present application.
  • the relationship between the included angle ⁇ and the total skin deformation is that the greater the included angle ⁇ , the greater the relative displacement, and the greater the total skin deformation S.
  • the volume of the bone conduction speaker at low frequency is positively correlated with the total skin deformation S.
  • the greater the S the greater the volume of bone conduction low frequency.
  • the volume of the bone conduction speaker in the high-frequency part is positively related to the skin deformation S ⁇ in the direction perpendicular to the skin.
  • the greater S ⁇ the greater the volume of bone conduction low frequency.
  • the relationship between the included angle ⁇ and the total skin deformation S and the skin deformation S ⁇ in the direction perpendicular to the skin can be found in FIG. 19.
  • the relationship between the included angle ⁇ and the total skin deformation S is that the greater the included angle ⁇ , the larger the total skin deformation S, and the greater the volume of the low-frequency portion of the corresponding bone conduction speaker.
  • the relationship between the included angle ⁇ and the skin deformation S ⁇ in the vertical skin direction is that the greater the included angle ⁇ , the smaller the skin deformation S ⁇ in the vertical skin direction, the greater the volume of the high frequency portion of the bone conduction speaker small.
  • the angle ⁇ should be at a suitable size.
  • the range of ⁇ is 5° to 80°, or 15° to 70°, or 25° to 50°, or 25° to 35°, or 25° to 30°, and so on.
  • FIG. 20 is a schematic diagram of a low-frequency part of a frequency response curve of a bone conduction speaker according to different included angles ⁇ provided by the present application.
  • the panel is in contact with the skin and transmits vibration to the skin.
  • the skin also affects the vibration of the bone conduction speaker, which affects the frequency response curve of the bone conduction speaker. From the above analysis, we found that the greater the angle of the clip, the greater the total deformation of the skin under the same driving force, and for the bone conduction speaker, it is equivalent to the reduction of the skin's elasticity relative to its panel portion.
  • the frequency response of the low frequency region in the curve is adjusted to a lower frequency region, so that the low frequency dives deeper and the low frequency increases.
  • setting the included angle can effectively suppress the increase of the vibration feeling while increasing the low-frequency energy, thereby reducing the vibration feeling relatively, so that The low-frequency sensitivity of the bone conduction speaker is significantly improved, which improves the sound quality and human experience.
  • the increased low frequency and the less sense of vibration can be expressed as the angle ⁇ increases in the range of (0, 90°), the energy in the low frequency range of the vibration or sound signal increases, and Vibration sensation also increased, but the energy in the low-frequency range increased to a greater extent than vibration sensation. Therefore, in the relative effect, vibration sensation was relatively reduced.
  • the angle is large, the resonance peak in the low-frequency region appears at a lower frequency band, and the part with a flat frequency curvature can be extended in disguise, thereby improving the sound quality of the speaker.
  • the minimum angle ⁇ between the straight line where the driving force is located and the normal line of the area on the panel for contacting or abutting the user's body can be any acute angle, and the acute angle here is not limited to the above 5° to 80°
  • the angle ⁇ can be less than 5°, for example, 1°, 2°, 3°, 4°, etc.
  • the included angle ⁇ may be greater than 80° and less than 90°, such as 81°, 82°, 85°, and so on.
  • the specific value of the included angle ⁇ may not be an integer (for example, 81.3°, 81.38°). Such deformations are within the scope of protection of this application.
  • the bone conduction speaker 200 in FIG. 21 is equivalent to the parts shown in the movement case 20 and the headphone core 50 in FIG. 2, where the case 220 corresponds to the movement case 20, and the internal A plurality of components correspond to the earphone core 50.
  • the bone conduction speaker 200 may include a magnetic circuit assembly 210, a coil 212, a vibration transmission sheet 214, a connection member 216, and a housing 220.
  • the magnetic circuit assembly 210 may include a first magnetic element 202, a first magnetic conductive element 204, and a second magnetic conductive element 206.
  • the housing 220 may include a housing panel 222, a housing back 224, and a housing side 226.
  • the back surface 224 of the housing is located on the side opposite to the front panel 222 of the housing, and is respectively disposed on both end surfaces of the side surface 226 of the housing.
  • the housing panel 222, the housing back 224 and the housing side 226 form an overall structure with a certain accommodating space.
  • the magnetic circuit assembly 210, the coil 212, and the vibration transmitting piece 214 are fixed inside the housing 220.
  • the bone conduction speaker 200 may further include a housing support 228, the vibration transmitting piece 214 may be connected to the housing 220 through the housing support 228, the coil 212 may be fixed on the housing support 228, and the housing support 228 may drive the housing 220 vibration.
  • the housing bracket 228 may be a part of the housing 220, or may be a separate component directly or indirectly connected to the inside of the housing 220.
  • the housing bracket 228 may be fixed on the inner surface of the housing side 226.
  • the housing bracket 228 may be pasted on the housing 220 by glue, or may be fixed on the housing 220 by stamping, injection molding, snapping, riveting, screw connection or welding.
  • the housing panel 222, the housing back 224, and the housing side 226 may be designed to ensure a greater rigidity of the housing 220.
  • the housing panel 222, the housing back 224, and the housing side 226 may be integrally formed.
  • the back surface 224 and the side surface 226 of the housing may be an integrally formed structure.
  • the outer shell panel 222 and the outer shell side 226 can be directly pasted and fixed by glue, or fixed by clamping, welding or screwing.
  • the glue may be a glue with strong viscosity and high hardness.
  • the housing panel 222 and the housing side 226 may be an integrally formed structure, and the housing back 224 and the housing side 226 may be directly pasted and fixed by glue, or fixed by clamping, welding, or screwing.
  • the housing panel 222, the housing back 224, and the housing side 226 are independent components, and the three may be implemented by one or any combination of glue, clamping, welding, or screw connection.
  • Fixed connection For example, the casing panel 222 and the casing side 226 are connected by glue, and the casing back 224 and the casing side 226 are connected by clamping, welding or screw connection. Or the housing back 224 and the housing side 226 are connected by glue, and the housing panel 222 and the housing side 226 are connected by clamping, welding or screw connection.
  • the housing described in this application can be made by different assembly methods.
  • the housing may be formed in one piece, in a separate combination, or in a combination of the two.
  • different splits can be fixed by glue, or fixed by clamping, welding or screw connection.
  • FIGS. 22-24 describe several examples of the manners of assembling the shells.
  • the bone conduction speaker mainly includes a magnetic circuit assembly 2210 and a housing.
  • the magnetic circuit assembly 2210 may include a first magnetic element 2202, a first magnetically conductive element 2204, and a second magnetically conductive element 2206.
  • the housing may include a housing panel 2222, a housing back 2224, and a housing side 2226.
  • the shell side 2226 and the shell back 2224 are made by an integral molding method, and the shell panel 2222 is connected to one end of the shell side 2226 through a subassembly.
  • the method of combining the sub-components includes using glue to fix, or fixing the shell panel 2222 to one end of the shell side 2226 by clamping, welding, or screwing.
  • the housing panel 2222 and the housing side 2226 may be made of different, identical or partially identical materials.
  • the housing panel 2222 and the housing side 2226 are made of the same material, and the Young's modulus of the same material is greater than 2000 MPa.
  • the Young's modulus of the same material is greater than 4000 MPa, more preferably, the Young's modulus of the same material is greater than 6000 MPa, and more preferably, the Young's modulus of the housing 220 material is greater than 8000 MPa, more preferably Preferably, the Young's modulus of the same material is greater than 12000 MPa, more preferably, the Young's modulus of the same material is greater than 15000 MPa, further preferably, the Young's modulus of the same material is greater than 18000 MPa.
  • the outer shell panel 2222 and the outer shell side 2226 are made of different materials, and the Young's modulus of the different materials are all greater than 4000 MPa.
  • the Young's modulus of the different materials are all greater than 6000 MPa, more preferably, the Young's modulus of the different materials are greater than 8000 MPa, and more preferably, the Young's modulus of the different materials are greater than 12000 MPa More preferably, the Young's modulus of the different materials are all greater than 15000 MPa. Further preferably, the Young's modulus of the different materials are all greater than 18000 MPa.
  • the materials of the housing panel 2222 and/or the housing side 2226 include, but are not limited to, AcrYlonitrile butadiene styrene copolymer (AcrYlonitrile butadiene stYrene, ABS), polystyrene (PolYstYrene, PS), high Impact polystyrene (High Impact polYstYrene, HIPS), polypropylene (PolYpropYlene, PP), polyethylene terephthalate (PolYethYlene terephthalate, PET), polyester (PolYester, PES), polycarbonate (PolYcarbonate, PC ), Polyamide (PolYamides, PA), Polyvinyl Chloride (PolYvinYlchloride, PVC), Polyurethane (PolYurethanes, PU), Polyvinyl Chloride (PolYvinYlidenechloride), Polyethylene (PolYethYlene, PE), Polymethylmethacrylate (PolYmethacrylate (Pol
  • the material of the housing panel 2222 is any combination of materials such as glass fiber, carbon fiber, and polycarbonate (PolYcarbonate, PC), polyamide (PolYamides, PA).
  • the material of the housing panel 2222 and/or the housing side 2226 may be made of carbon fiber and polycarbonate (PolYcarbonate, PC) mixed according to a certain ratio.
  • the material of the housing panel 2222 and/or the housing side 2226 may be made of carbon fiber, glass fiber, and polycarbonate (PolYcarbonate, PC) mixed according to a certain ratio.
  • the material of the outer shell panel 2222 and/or the outer shell side 2226 may be made of glass fiber and polycarbonate (PolYcarbonate, PC) mixed according to a certain ratio, or glass fiber and polyamide (PolYamides, PA) Made according to a certain ratio.
  • the housing panel 2222, the housing back 2224, and the housing side 2226 form an overall structure with a certain accommodating space.
  • the vibration transmission piece 2214 is connected to the magnetic circuit assembly 2210 through a connection 2216.
  • the two sides of the magnetic circuit assembly 2210 are connected to the first magnetic conductive element 2204 and the second magnetic conductive element 2206 respectively.
  • the vibration-transmitting piece 2214 is fixed inside the unitary structure through a housing bracket 2228.
  • the housing side 2226 has a stepped structure for supporting the housing bracket 2228.
  • the shell panel 2222 may be fixed on the shell bracket 2228 and the shell side 2226 at the same time, or separately fixed on the shell bracket 2228 or the shell side 2226.
  • the housing side 2226 and the housing bracket 2228 may be integrally formed.
  • the housing bracket 2228 may be directly fixed on the housing panel 2222 (for example, by means of glue, snapping, welding, or screw connection).
  • the fixed housing panel 2222 and the housing bracket 2228 are then fixed to the side of the housing (for example, by means of glue, clamping, welding, or screw connection).
  • the housing bracket 2228 and the housing panel 2222 may be integrally formed.
  • the bone conduction speaker mainly includes a magnetic circuit assembly 2240 and a housing.
  • the magnetic circuit assembly 2240 may include a first magnetic element 2232, a first magnetic conductive element 2234, and a second magnetic conductive element 2236.
  • the vibration-transmitting sheet 2244 is connected to the magnetic circuit assembly 2240 through a connecting member 2246.
  • This embodiment differs from the embodiment provided in FIG. 22 in that the housing bracket 2258 and the housing side 2256 are integrally formed.
  • the shell panel 2252 is fixed on the side of the shell side 2256 connected to the shell bracket 2258 (for example, by means of glue, snapping, welding, or screw connection), and the back 2254 of the shell is fixed on the other side of the shell side 2256 (for example, By means of glue sticking, clamping, welding or screw connection).
  • the shell bracket 2258 and the shell side 2256 are a separate combined structure, and the shell panel 2252, the shell back 2254, the shell bracket 2258 and the shell side 2256 are all glued and snapped together by glue , Welding or screw connection for fixed connection.
  • the bone conduction speaker in this embodiment mainly includes a magnetic circuit assembly 2270 and a housing.
  • the magnetic circuit assembly 2270 may include a first magnetic element 2262, a first magnetic conductive element 2264, and a second magnetic conductive element 2266.
  • the vibration-transmitting sheet 2274 is connected to the magnetic circuit assembly 2270 through a connecting member 2276.
  • This embodiment differs from the embodiment provided in FIG. 23 in that the housing panel 2282 and the housing side 2286 are integrally formed.
  • the back surface 2284 of the housing is fixed on the side of the housing side 2286 relative to the housing panel 2282 (for example, by means of glue, snapping, welding, or screw connection).
  • the housing bracket 2288 is fixed on the housing panel 2282 and/or the housing side 2286 by glue, clamping, welding or screw connection. In this case, optionally, the housing bracket 2288, the housing panel 2282 and the housing side 2286 are an integrally formed structure.
  • FIG. 25 is a schematic structural diagram of a shell of a bone conduction speaker according to some embodiments of the present application.
  • the housing 700 may include a housing panel 710, a housing back 720, and a housing side 730.
  • the housing panel 710 contacts the human body and transmits the vibration of the bone conduction speaker to the auditory nerve of the human body.
  • the vibration amplitude and phase of the housing panel 710 and the housing back 720 remain the same or substantially the same within a certain frequency range (the housing side 730 does not compress air and thus does not Generating sound leakage), so that the first sound leakage signal generated by the housing panel 710 and the second sound leakage signal generated by the housing back 720 can be superimposed on each other.
  • the superposition can reduce the amplitude of the first sound leakage sound wave or the second sound leakage sound wave, thereby reducing the sound leakage of the housing 700.
  • the certain frequency range includes at least a portion with a frequency greater than 500 Hz.
  • the certain frequency range includes at least a portion with a frequency greater than 600 Hz.
  • the certain frequency range includes at least a portion with a frequency greater than 800 Hz.
  • the certain frequency range includes at least a portion with a frequency greater than 1000 Hz.
  • the certain frequency range includes at least a portion with a frequency greater than 2000 Hz. More preferably, the certain frequency range includes at least a portion with a frequency greater than 5000 Hz. More preferably, the certain frequency range includes at least a portion with a frequency greater than 8000 Hz. Further preferably, the certain frequency range includes at least a portion with a frequency greater than 10000 Hz.
  • the rigidity of the shell of the bone conduction speaker affects the vibration amplitude and phase of different parts of the shell (for example, the shell panel, the back of the shell, and/or the side of the shell), thereby affecting the sound leakage of the bone conduction speaker.
  • the shell panel and the back of the shell can maintain the same or substantially the same vibration amplitude and phase at a higher frequency, thereby significantly reducing bone conduction headphones Sound leakage.
  • the higher frequency may include a frequency not less than 1000 Hz, for example, a frequency between 1000 Hz-2000 Hz, a frequency between 1100 Hz-2000 Hz, a frequency between 1300 Hz-2000 Hz, and a frequency between 1500 Hz-2000 Hz Frequency, frequency between 1700Hz-2000Hz, frequency between 1900Hz-2000Hz.
  • the higher frequency mentioned here may include a frequency not less than 2000 Hz, for example, a frequency between 2000 Hz and 3000 Hz, a frequency between 2100 Hz and 3000 Hz, a frequency between 2300 Hz and 3000 Hz, and a frequency between 2500 Hz and 3000 Hz.
  • Frequency frequency between 2700Hz-3000Hz, or frequency between 2900Hz-3000Hz.
  • the higher frequency may include a frequency not less than 4000 Hz, for example, a frequency between 4000 Hz-5000 Hz, a frequency between 4100 Hz-5000 Hz, a frequency between 4300 Hz-5000 Hz, a frequency between 4500 Hz-5000 Hz, 4700 Hz -Frequency between 5000Hz or 4900Hz-5000Hz.
  • the higher frequency may include a frequency not less than 6000 Hz, for example, a frequency between 6000 Hz-8000 Hz, a frequency between 6100 Hz-8000 Hz, a frequency between 6300 Hz-8000 Hz, a frequency between 6500 Hz-8000 Hz, Frequency between 7000Hz-8000Hz, frequency between 7500Hz-8000Hz, or frequency between 7900Hz-8000Hz.
  • the higher frequency may include a frequency not less than 8000 Hz, for example, a frequency between 8000 Hz and 12000 Hz, a frequency between 8100 Hz and 12000 Hz, a frequency between 8300 Hz and 12000 Hz, a frequency between 8500 Hz and 12000 Hz, Frequency between 9000Hz-12000Hz, frequency between 10000Hz-12000Hz, or frequency between 11000Hz-12000Hz.
  • the same or substantially the same vibration amplitude means that the ratio of the vibration amplitude of the shell panel and the back of the shell is within a certain range.
  • the ratio of the vibration amplitude of the shell panel and the back of the shell is between 0.3 and 3.
  • the ratio of the vibration amplitude of the shell panel and the back of the shell is between 0.4 and 2.5.
  • the vibration amplitude of the shell panel and the back of the shell The ratio of between 0.5 to 1.5, more preferably, the ratio of the vibration amplitude of the enclosure panel and the back of the enclosure is between 0.6 and 1.4, and more preferably, the ratio of the vibration amplitude of the enclosure panel and the back of the enclosure is between 0.7 and 1.2 More preferably, the ratio of the vibration amplitude of the shell panel and the back of the shell is between 0.75 and 1.15. More preferably, the ratio of the vibration amplitude of the shell panel and the back of the shell is between 0.8 and 1.1. More preferably, the shell panel and The ratio of the vibration amplitude of the back of the casing is between 0.85 and 1.1.
  • the ratio of the vibration amplitude of the casing panel and the back of the casing is between 0.9 and 1.05.
  • the vibration of the enclosure panel and the back of the enclosure can be represented by other physical quantities that can characterize the amplitude of its vibration.
  • the sound pressure generated by the shell panel and the back of the shell at a point in the space can be used to characterize the vibration amplitude of the shell panel and the back of the shell.
  • the same or substantially the same vibration phase of the shell panel and the back of the shell means that the difference in the vibration phase of the shell panel and the back of the shell is within a certain range.
  • the difference in vibration phase between the shell panel and the back of the shell is between -90° and 90°, preferably, the difference in vibration phase between the shell panel and the back of the shell is between -80° and 80°, preferably, The difference in vibration phase between the shell panel and the back of the shell is between -60° and 60°, preferably, the difference in vibration phase between the shell panel and the back of the shell is between -45° and 45°, more preferably, the shell
  • the difference between the vibration phase of the panel and the back of the casing is between -30° and 30°, more preferably, the difference between the vibration phase of the panel and the back of the casing is between -20° and 20°, more preferably, the casing
  • the difference between the vibration phase of the panel and the back of the casing is between -15° and 15°, more preferably, the
  • the above description of the bone conduction speaker is only a specific example and should not be regarded as the only feasible implementation.
  • the side of the housing, the back of the housing, and the housing bracket may be an integrally formed structure. Such deformations are within the scope of protection of this application.
  • the speaker 1000 may include a first magnetic element 1002, a first magnetic conductive element 1004, a second magnetic conductive element 1006, a first vibration plate 10008, a voice coil 1010, a second vibration plate 1012, and a vibration panel 1014.
  • some components of the earphone core in the speaker may constitute a magnetic circuit assembly.
  • the magnetic circuit assembly may include a first magnetic element 1002, a first magnetic conductive element 1004, and a second magnetic conductive element 1006.
  • the magnetic circuit assembly may generate a first full magnetic field (also may be referred to as "total magnetic field of the magnetic circuit assembly" or "first magnetic field").
  • the magnetic element described in this application refers to an element that can generate a magnetic field, such as a magnet.
  • the magnetic element may have a magnetization direction, and the magnetization direction refers to a magnetic field direction inside the magnetic element.
  • the first magnetic element 1002 may include one or more magnets, and the first magnetic element may generate a second magnetic field.
  • the magnet may include a metal alloy magnet, ferrite, or the like.
  • the metal alloy magnet may include neodymium iron boron, samarium cobalt, aluminum nickel cobalt, iron chromium cobalt, aluminum iron boron, iron carbon aluminum, or the like, or a combination thereof.
  • the ferrite may include barium ferrite, steel ferrite, manganese ferrite, lithium manganese ferrite, or the like, or a combination thereof.
  • the lower surface of the first magnetic element 1004 may be connected to the upper surface of the first magnetic element 1002.
  • the second magnetic element 1006 can be connected to the first magnetic element 1002.
  • the magnetizer mentioned here can also be called a magnetic field concentrator or iron core.
  • the magnetizer can adjust the distribution of the magnetic field (for example, the second magnetic field generated by the first magnetic element 1002).
  • the magnetizer may include an element made of soft magnetic material.
  • the soft magnetic material may include metal materials, metal alloys, metal oxide materials, amorphous metal materials, etc., such as iron, iron-silicon alloys, iron-aluminum alloys, nickel-iron alloys, iron-cobalt Alloy, low carbon steel, silicon steel sheet, silicon steel sheet, ferrite, etc.
  • the magnetizer can be processed by one or more combinations of casting, plastic processing, cutting processing, powder metallurgy, and the like. Casting can include sand casting, investment casting, pressure casting, centrifugal casting, etc.; plastic processing can include one or more combinations of rolling, casting, forging, stamping, extrusion, drawing, etc.; cutting processing can include turning and milling , Planing, grinding, etc.
  • the processing method of the magnetizer may include 3D printing, CNC machine tools, and the like.
  • the connection manners between the first magnetically permeable element 1004, the second magnetically permeable element 1006, and the first magnetic element 1002 may include one or more combinations such as bonding, clamping, welding, riveting, and bolting.
  • the first magnetic element 1002, the first magnetic permeable element 1004, and the second magnetic permeable element 1006 may be arranged in an axisymmetric structure.
  • the axisymmetric structure may be a ring structure, a columnar structure, or other axisymmetric structures.
  • a magnetic gap may be formed between the first magnetic element 1002 and the second magnetic conductive element 1006.
  • the voice coil 1010 may be disposed in the magnetic gap.
  • the voice coil 1010 may be connected to the first vibration plate 1008.
  • the first vibration plate 1008 may be connected to the second vibration plate 1012, and the second vibration plate 1012 may be connected to the vibration panel 1014.
  • the ampere force drives the voice coil 1010 to vibrate.
  • the vibration of the voice coil 1010 drives the vibration of the first vibrating plate 1008, the second vibrating plate 1012, and the vibrating panel 1014.
  • the vibration panel 1014 transmits the vibration to the auditory nerve through tissues and bones, so that a person can hear sound.
  • the vibration panel 1014 may directly contact the human skin, or may contact the skin through a vibration transmission layer composed of a specific material.
  • the magnetic induction lines passing through the voice coil are not uniform and are divergent.
  • magnetic leakage may be formed in the magnetic circuit, that is, more magnetic induction lines leak out of the magnetic gap and fail to pass through the voice coil, thereby reducing the magnetic induction strength (or magnetic field strength) at the position of the voice coil, affecting the sensitivity of the speaker .
  • the speaker 1000 may further include at least one second magnetic element and/or at least one third magnetic conductive element (not shown).
  • the at least one second magnetic element and/or at least one third magnetic permeable element can suppress the leakage of magnetic induction lines, restrict the shape of the magnetic induction lines passing through the voice coil, so that more magnetic induction lines pass through the sound as densely as possible Coil to enhance the magnetic induction strength (or magnetic field strength) at the position of the voice coil, thereby improving the sensitivity of the speaker 1000, and thereby improving the mechanical conversion efficiency of the speaker 1000 (ie, the efficiency of converting the electrical energy input to the speaker 1000 into the mechanical energy of the voice coil vibration) .
  • FIG. 27 is a schematic longitudinal cross-sectional view of a magnetic circuit assembly 2100 according to some embodiments of the present application.
  • the magnetic circuit assembly 2100 may include a first magnetic element 2102, a first magnetic conductive element 2104, a second magnetic conductive element 2106, and a second magnetic element 2108.
  • the first magnetic element 2102 and/or the second magnetic element 2108 may include any one or more of the magnets described in this application.
  • the first magnetic element 2102 may include a first magnet
  • the second magnetic element 2108 may include a second magnet
  • the first magnet and the second magnet may be the same or different.
  • the first magnetically permeable element 2104 and/or the second magnetically permeable element 2106 may include any one or several magnetically permeable materials described in this application.
  • the processing method of the first magnetic conductive element 2104 and/or the second magnetic conductive element 2106 may include any one or several processing methods described in this application.
  • the first magnetic element 2102 and/or the first magnetically conductive element 2104 may be configured as an axisymmetric structure.
  • the first magnetic element 2102 and/or the first magnetic permeable element 2104 may be a cylinder, a rectangular parallelepiped, or a hollow ring (for example, the cross-section is in the shape of a racetrack).
  • the first magnetic element 2102 and the first magnetic conductive element 2104 may be coaxial cylinders with the same or different diameters.
  • the second magnetically conductive element 2106 may be a groove type structure.
  • the groove-shaped structure may include a U-shaped cross-section (as shown in FIG. 26).
  • the groove-shaped second magnetic conductive element 2106 may include a bottom plate and a side wall.
  • the bottom plate and the side wall may be integrally formed, for example, the side wall may be formed by the bottom plate extending in a direction perpendicular to the bottom plate.
  • the bottom plate may be connected to the side wall by any one or several connection methods described in this application.
  • the second magnetic element 2108 may be set in a ring shape or a sheet shape.
  • the second magnetic element 2108 may be ring-shaped.
  • the second magnetic element 2108 may include an inner ring and an outer ring.
  • the shape of the inner ring and/or the outer ring may be circular, elliptical, triangular, quadrilateral, or any other polygon.
  • the second magnetic element 2108 may be composed of multiple magnet arrangements. The two ends of any one of the plurality of magnets may be connected to the two ends of adjacent magnets or have a certain distance. The spacing between multiple magnets may be the same or different.
  • the second magnetic element 2108 may be composed of 2 or 3 sheet-shaped magnets arranged equidistantly.
  • the shape of the sheet-shaped magnet may be a fan shape, a quadrilateral shape, or the like.
  • the second magnetic element 2108 may be coaxial with the first magnetic element 2102 and/or the first magnetic conductive element 2104.
  • the upper surface of the first magnetic element 2102 may be connected to the lower surface of the first magnetic conductive element 2104.
  • the lower surface of the first magnetic element 2102 may be connected to the bottom plate of the second magnetic element 206.
  • the lower surface of the second magnetic element 2108 is connected to the side wall of the second magnetic conductive element 2106.
  • the connection between the first magnetic element 2102, the first magnetic permeable element 2104, the second magnetic permeable element 2106 and/or the second magnetic element 2108 may include one of bonding, clamping, welding, riveting, bolting, etc. or Many combinations.
  • a magnetic gap is formed between the first magnetic element 2102 and/or the first magnetic permeable element 2104 and the inner ring of the second magnetic element 2108.
  • the voice coil 2128 may be disposed in the magnetic gap.
  • the height of the second magnetic element 2108 and the voice coil 2128 relative to the bottom plate of the second magnetic conductive element 2106 are equal.
  • the first magnetic element 2102, the first magnetic conductive element 2104, the second magnetic conductive element 2106, and the second magnetic element 2108 may form a magnetic circuit.
  • the magnetic circuit assembly 2100 can generate a first full magnetic field (also referred to as "total magnetic field of the magnetic circuit assembly” or "first magnetic field”), and the first magnetic element 2102 can generate a second magnetic field.
  • the first full magnetic field is a magnetic field generated by all components in the magnetic circuit assembly 2100 (for example, the first magnetic element 2102, the first magnetic conductive element 2104, the second magnetic conductive element 2106, and the second magnetic element 2108) Formed together.
  • the magnetic field strength of the first full magnetic field in the magnetic gap (may also be referred to as magnetic induction strength or magnetic flux density) is greater than the magnetic field strength of the second magnetic field in the magnetic gap.
  • the second magnetic element 2108 may generate a third magnetic field, which may increase the magnetic field strength of the first full magnetic field at the magnetic gap.
  • the third magnetic field mentioned here improves the magnetic field strength of the first full magnetic field means that when the third magnetic field exists (ie, the second magnetic element 2108 is present), the magnetic field strength of the first full magnetic field in the magnetic gap is greater than that The first full magnetic field is when the third magnetic field is present (ie, there is no second magnetic element 2108).
  • the magnetic circuit assembly indicates a structure including all magnetic elements and magnetic permeable elements
  • the first full magnetic field indicates the magnetic field generated by the magnetic circuit assembly as a whole
  • the second magnetic field indicates the third magnetic field ,...
  • the Nth magnetic field respectively represents the magnetic field generated by the corresponding magnetic element.
  • the magnetic elements that generate the second magnetic field may be the same or different.
  • the angle between the magnetization direction of the first magnetic element 2102 and the magnetization direction of the second magnetic element 2108 is between 0 degrees and 180 degrees. In some embodiments, the angle between the magnetization direction of the first magnetic element 2102 and the magnetization direction of the second magnetic element 2108 is between 45 degrees and 135 degrees. In some embodiments, the angle between the magnetization direction of the first magnetic element 2102 and the magnetization direction of the second magnetic element 2108 is equal to or greater than 90 degrees.
  • the magnetization direction of the first magnetic element 2102 is perpendicular to the lower surface or the upper surface of the first magnetic element 2102 vertically upward (as shown in the direction of a in the figure), and the magnetization direction of the second magnetic element 2108 is determined by the The inner ring of the two magnetic elements 2108 points toward the outer ring (as shown in the direction of b in the figure, on the right side of the first magnetic element 2102, the magnetization direction of the first magnetic element 2102 is deflected 90 degrees in the clockwise direction).
  • the angle between the direction of the first full magnetic field and the magnetization direction of the second magnetic element 2108 is not higher than 90 degrees. In some embodiments, at the position of the second magnetic element 2108, the angle between the direction of the magnetic field generated by the first magnetic element 2102 and the magnetization direction of the second magnetic element 2108 may be 0 degrees, 10 degrees, 20 degrees Equal to or less than 90 degrees.
  • the second magnetic element 2108 can increase the total magnetic flux in the magnetic gap in the magnetic circuit assembly 2100, thereby increasing the magnetic induction intensity in the magnetic gap. Moreover, under the action of the second magnetic element 2108, the originally divergent magnetic induction lines converge to the position of the magnetic gap, further increasing the magnetic induction intensity in the magnetic gap.
  • FIG. 28 is a schematic longitudinal cross-sectional view of a magnetic circuit assembly 2600 according to some embodiments of the present application. As shown in FIG. 28, the magnetic circuit assembly 2600 differs from the magnetic circuit assembly 2100 in that it may further include at least one conductive element (eg, first conductive element 2118, second conductive element 2120, and third conductive element 2122) .
  • at least one conductive element eg, first conductive element 2118, second conductive element 2120, and third conductive element 2122
  • the conductive element may include a metal material, a metal alloy material, an inorganic non-metallic material, or other conductive materials.
  • the metal material may include gold, silver, copper, aluminum, etc.; the metal alloy material may include iron-based alloy, aluminum-based alloy material, copper-based alloy, zinc-based alloy, etc.; the inorganic non-metallic material may include graphite, etc.
  • the conductive element may be in the form of a sheet, a ring, a mesh, or the like.
  • the first conductive element 2118 may be disposed on the upper surface of the first magnetic conductive element 2104.
  • the second conductive element 2120 may connect the first magnetic element 2102 and the second magnetic conductive element 2106.
  • the third conductive element 2122 may be connected to the side wall of the first magnetic element 2102.
  • the first magnetic conductive element 2104 may protrude from the first magnetic element 2102 to form a first concave portion, and the third conductive element 2122 is disposed in the first concave portion.
  • the first conductive element 2118, the second conductive element 2120, and the third conductive element 2122 may include the same or different conductive materials.
  • the first conductive element 2118, the second conductive element 2120, and the third conductive element 2122 may be connected to the first magnetic conductive element 2104, the second magnetic conductive element 2106, and/or via any one or more of the connection methods described in this application
  • a magnetic gap is formed between the first magnetic element 2102, the first magnetic conductive element 2104, and the inner ring of the second magnetic element 2108.
  • the voice coil 2128 may be disposed in the magnetic gap.
  • the first magnetic element 2102, the first magnetic conductive element 2104, the second magnetic conductive element 2106, and the second magnetic element 2108 may form a magnetic circuit.
  • the conductive element may reduce the inductive reactance of the voice coil 2128. For example, if the first alternating current is applied to the voice coil 2128, a first alternating induced magnetic field will be generated near the voice coil 2128.
  • the first alternating induction magnetic field will cause the voice coil 2128 to have an inductive reactance and hinder the movement of the voice coil 2128.
  • a conductive element for example, a first conductive element 2118, a second conductive element 2120, and a third conductive element 2122
  • the conductive element can induce Second alternating current.
  • the third alternating current in the conductive element can generate a second alternating induced magnetic field in the vicinity thereof, the second alternating induced magnetic field is opposite to the direction of the first alternating induced magnetic field, and the first alternating current can be weakened
  • the induced magnetic field is changed, thereby reducing the inductance of the voice coil 2128, increasing the current in the voice coil, and improving the sensitivity of the speaker.
  • FIG. 29 is a schematic longitudinal cross-sectional view of a magnetic circuit assembly 2700 according to some embodiments of the present application.
  • the magnetic circuit assembly 2700 differs from the magnetic circuit assembly 2500 in that the magnetic circuit assembly 2700 may further include a third magnetic element 2110, a fourth shaped magnetic element 2112, a fifth magnetic element 2114, a third guide The magnetic element 2116, the sixth magnetic element 2124, and the seventh magnetic element 2126.
  • the third magnetic element 2110, the fourth magnetic element 2112, the fifth magnetic element 2114, the third magnetic permeable element 2116 and/or the sixth magnetic element 2124, and the seventh magnetic element 2126 may be arranged as coaxial annular cylinders.
  • the upper surface of the second magnetic element 2108 is connected to the seventh magnetic element 2126, and the lower surface of the second magnetic element 2108 may be connected to the third magnetic element 2110.
  • the third magnetic element 2110 may be connected to the second magnetic element 2106.
  • the upper surface of the seventh magnetic element 2126 may be connected to the third magnetic conductive element 2116.
  • the fourth magnetic element 2112 can connect the second magnetic element 2106 and the first magnetic element 2102.
  • the sixth magnetic element 2124 may connect the fifth magnetic element 2114, the third magnetic conductive element 2116, and the seventh magnetic element 2126.
  • the first magnetic element 2102, the first magnetic permeable element 2104, the second magnetic permeable element 2106, the second magnetic element 2108, the third magnetic element 2110, the fourth magnetic element 2112, the fifth magnetic element 2114, The third magnetic element 2116, the sixth magnetic element 2124, and the seventh magnetic element 2126 may form a magnetic circuit and a magnetic gap.
  • the angle between the magnetization direction of the first magnetic element 2102 and the magnetization direction of the sixth magnetic element 2124 may be between 0 degrees and 180 degrees. In some embodiments, the angle between the magnetization direction of the first magnetic element 2102 and the magnetization direction of the sixth magnetic element 2124 is between 45 degrees and 135 degrees. In some embodiments, the angle between the magnetization direction of the first magnetic element 2102 and the magnetization direction of the sixth magnetic element 2124 is not higher than 90 degrees.
  • the magnetization direction of the first magnetic element 2102 is perpendicular to the lower surface or the upper surface of the first magnetic element 2102 vertically upward (as shown in direction a), and the magnetization direction of the sixth magnetic element 2124 is determined by the sixth The outer ring of the magnetic element 2124 points toward the inner ring (as shown in the direction g in the figure, on the right side of the first magnetic element 2102, the magnetization direction of the first magnetic element 2102 is deflected 270 degrees in the clockwise direction). In some embodiments, in the same vertical direction, the magnetization direction of the sixth magnetic element 2124 and the magnetization direction of the fourth magnetic element 2112 may be the same.
  • the angle between the direction of the magnetic field generated by the magnetic circuit assembly 2700 and the magnetization direction of the sixth magnetic element 2124 is not higher than 90 degrees. In some embodiments, at the position of the sixth magnetic element 2124, the angle between the direction of the magnetic field generated by the first magnetic element 2102 and the magnetization direction of the sixth magnetic element 2124 may be 0 degrees, 10 degrees, 20 degrees Equal to or less than 90 degrees.
  • the angle between the magnetization direction of the first magnetic element 2102 and the magnetization direction of the seventh magnetic element 2126 may be between 0 degrees and 180 degrees. In some embodiments, the angle between the magnetization direction of the first magnetic element 2102 and the magnetization direction of the seventh magnetic element 2126 is between 45 degrees and 135 degrees. In some embodiments, the angle between the magnetization direction of the first magnetic element 2102 and the magnetization direction of the seventh magnetic element 2126 is not higher than 90 degrees.
  • the magnetization direction of the first magnetic element 2102 is perpendicular to the lower surface or the upper surface of the first magnetic element 2102 vertically upward (as shown in direction a), and the magnetization direction of the seventh magnetic element 2126 is determined by the seventh The lower surface of the magnetic element 2126 points to the upper surface (as shown in the direction f in the figure, on the right side of the first magnetic element 2102, the magnetization direction of the first magnetic element 2102 is deflected 360 degrees in the clockwise direction).
  • the magnetization direction of the seventh magnetic element 2126 and the magnetization direction of the third magnetic element 2110 may be opposite.
  • the angle between the direction of the magnetic field generated by the magnetic circuit assembly 2700 and the magnetization direction of the seventh magnetic element 2126 is not higher than 90 degrees. In some embodiments, at the position of the seventh magnetic element 2126, the angle between the direction of the magnetic field generated by the first magnetic element 2102 and the magnetization direction of the seventh magnetic element 2126 may be 0 degrees, 10 degrees, 20 degrees Equal to or less than 90 degrees.
  • the third magnetic permeable element 2116 can close the magnetic circuit generated by the magnetic circuit assembly 2700, so that more magnetic induction lines are concentrated in the magnetic gap, thereby suppressing magnetic leakage and increasing the magnetic gap The magnetic induction intensity and the effect of improving the sensitivity of the speaker.
  • the magnetic circuit assembly 2900 may include a first magnetic element 2902, a first magnetic conductive element 2904, a first full magnetic field changing element 2906, and a second magnetic element 2908.
  • the upper surface of the first magnetic element 2902 may be connected to the lower surface of the first magnetic conductive element 2904, and the second magnetic element 2908 may be connected to the first magnetic element 2902 and the first full magnetic field changing element 2906.
  • the connection between the first magnetic element 2902, the first magnetic permeable element 2904, the first full magnetic field changing element 2906, and/or the second magnetic element 2908 may be based on any one or several connection methods described in this application.
  • the first magnetic element 2902, the first magnetic permeable element 2904, the first full magnetic field changing element 2906, and/or the second magnetic element 2908 may form a magnetic circuit and a magnetic gap.
  • the magnetic circuit assembly 2900 can generate a first full magnetic field, and the first magnetic element 2902 can generate a second magnetic field.
  • the magnetic field strength of the first full magnetic field in the magnetic gap is greater than that of the second magnetic field.
  • the second magnetic element 2908 may generate a third magnetic field, which may increase the magnetic field strength of the second magnetic field at the magnetic gap.
  • the angle between the magnetization direction of the first magnetic element 2902 and the magnetization direction of the second magnetic element 2908 may be between 0 degrees and 180 degrees. In some embodiments, the angle between the magnetization direction of the first magnetic element 2902 and the magnetization direction of the second magnetic element 2908 is between 45 degrees and 135 degrees. In some embodiments, the angle between the magnetization direction of the first magnetic element 2902 and the magnetization direction of the second magnetic element 2908 may not be higher than 90 degrees.
  • the angle between the direction of the first full magnetic field and the magnetization direction of the second magnetic element 2908 is not higher than 90 degrees. In some embodiments, at the position of the second magnetic element 2908, the angle between the direction of the magnetic field generated by the first magnetic element 2902 and the magnetization direction of the second magnetic element 2908 may be 0 degrees, 10 degrees, 20 degrees Equal to or less than 90 degrees.
  • the magnetization direction of the first magnetic element 2902 is perpendicular to the lower surface or upper surface of the first magnetic element 2902 (as shown in direction a), and the magnetization direction of the second magnetic element 2908 is determined by the second magnetic element 2908
  • the outer ring of is directed toward the inner ring (as shown in direction c in the figure, on the right side of the first magnetic element 2902, the magnetization direction of the first magnetic element 2902 is deflected 270 degrees in the clockwise direction).
  • the first full magnetic field changing element 2906 in the magnetic circuit assembly 2900 can increase the total magnetic flux in the magnetic gap, thereby increasing the magnetic induction intensity in the magnetic gap. Moreover, under the action of the first full magnetic field changing element 2906, the originally divergent magnetic induction lines converge to the position of the magnetic gap, further increasing the magnetic induction intensity in the magnetic gap.
  • FIG. 31 is a schematic longitudinal cross-sectional view of a magnetic circuit assembly 3000 according to some embodiments of the present application.
  • the magnetic circuit assembly 3000 may include a first magnetic element 2902, a first magnetic conductive element 2904, a first full magnetic field changing element 2906, a second magnetic element 2908, a third magnetic element 2910 , A fourth magnetic element 2912, a fifth magnetic element 2916, a sixth magnetic element 2918, a seventh magnetic element 2920, and a second ring element 2922.
  • the first full magnetic field changing element 2906 and/or the second annular element 2922 may include an annular magnetic element or an annular magnetically permeable element.
  • the ring-shaped magnetic element may include any one or more of the magnet materials described in this application, and the ring-shaped magnetic permeable element may include any one or more of the magnetic materials described in this application.
  • the sixth magnetic element 2918 may connect the fifth magnetic element 2916 and the second ring element 2922
  • the seventh magnetic element 2920 may connect the third magnetic element 2910 and the second ring element 2922.
  • the first magnetic element 2902, the fifth magnetic element 2916, the second magnetic element 2908, the third magnetic element 2910, the fourth magnetic element 2912, the sixth magnetic element 2918 and/or the seventh magnetic element 2920 are The first magnetic conductive element 2904, the first full magnetic field changing element 2906, and the second ring element 2922 may form a magnetic circuit.
  • the angle between the magnetization direction of the first magnetic element 2902 and the magnetization direction of the sixth magnetic element 2918 may be between 0 degrees and 180 degrees. In some embodiments, the angle between the magnetization direction of the first magnetic element 2902 and the magnetization direction of the sixth magnetic element 2918 is between 45 degrees and 135 degrees. In some embodiments, the angle between the magnetization direction of the first magnetic element 2902 and the magnetization direction of the sixth magnetic element 2918 is not higher than 90 degrees.
  • the magnetization direction of the first magnetic element 2902 is perpendicular to the lower surface or the upper surface of the first magnetic element 2902 vertically upward (as shown in direction a), and the magnetization direction of the sixth magnetic element 2918 is determined by the sixth The outer ring of the magnetic element 2918 points toward the inner ring (as shown in the direction f in the figure, on the right side of the first magnetic element 2902, the magnetization direction of the first magnetic element 2902 is deflected 270 degrees in the clockwise direction). In some embodiments, in the same vertical direction, the magnetization direction of the sixth magnetic element 2918 and the magnetization direction of the second magnetic element 2908 may be the same.
  • the magnetization direction of the first magnetic element 2902 is perpendicular to the lower surface or upper surface of the first magnetic element 2902 vertically upward (as shown in the direction of a), and the magnetization direction of the seventh magnetic element 2920 is determined by the seventh The lower surface of the magnetic element 2920 points to the upper surface (as shown in the direction e in the figure, on the right side of the first magnetic element 2902, the magnetization direction of the first magnetic element 2902 is deflected 360 degrees in the clockwise direction).
  • the magnetization direction of the seventh magnetic element 2920 and the magnetization direction of the fourth magnetic element 2912 may be the same.
  • the angle between the direction of the magnetic field generated by the magnetic circuit assembly 2900 and the magnetization direction of the sixth magnetic element 2918 is not higher than 90 degrees. In some embodiments, at the position of the sixth magnetic element 2918, the angle between the direction of the magnetic field generated by the first magnetic element 2902 and the magnetization direction of the sixth magnetic element 2918 may be 0 degrees, 10 degrees, 20 degrees Equal to or less than 90 degrees.
  • the angle between the magnetization direction of the first magnetic element 2902 and the magnetization direction of the seventh magnetic element 2920 may be between 0 degrees and 180 degrees. In some embodiments, the angle between the magnetization direction of the first magnetic element 2902 and the magnetization direction of the seventh magnetic element 2920 is between 45 degrees and 135 degrees. In some embodiments, the angle between the magnetization direction of the first magnetic element 2902 and the magnetization direction of the seventh magnetic element 2920 is not higher than 90 degrees.
  • the angle between the direction of the magnetic field generated by the magnetic circuit assembly 3000 and the magnetization direction of the seventh magnetic element 2920 is not higher than 90 degrees. In some embodiments, at the position of the seventh magnetic element 2920, the angle between the direction of the magnetic field generated by the first magnetic element 2902 and the magnetization direction of the seventh magnetic element 2920 may be 0 degrees, 10 degrees, 20 degrees Equal to or less than 90 degrees.
  • the first full magnetic field changing element 2906 may be a ring-shaped magnetic element.
  • the magnetization direction of the first full magnetic field changing element 2906 may be the same as the magnetization direction of the second magnetic element 2908 or the fourth magnetic element 2912.
  • the magnetization direction of the first full magnetic field changing element 2906 may be directed from the outer ring of the first full magnetic field changing element 2906 to the inner ring.
  • the second annular element 2922 may be an annular magnetic element.
  • the magnetization direction of the second ring element 2922 may be the same as the magnetization direction of the sixth magnetic element 2918 or the seventh magnetic element 2920.
  • the magnetization direction of the second ring element 2922 may be directed from the outer ring of the second ring element 2922 to the inner ring.
  • multiple magnetic elements can increase the total magnetic flux.
  • the interaction of different magnetic elements can suppress the leakage of magnetic induction lines, improve the magnetic induction intensity at the magnetic gap, and improve the sensitivity of the speaker.
  • FIG. 32 is a schematic longitudinal cross-sectional view of a magnetic circuit assembly 3100 according to some embodiments of the present application.
  • the magnetic circuit assembly 3100 may include a first magnetic element 3102, a first magnetic conductive element 3104, a second magnetic conductive element 3106, and a second magnetic element 3108.
  • the first magnetic element 3102 and/or the second magnetic element 3108 may include any one or more of the magnets described in this application.
  • the first magnetic element 3102 may include a first magnet
  • the second magnetic element 3108 may include a second magnet
  • the first magnet and the second magnet may be the same or different.
  • the first magnetically permeable element 3104 and/or the second magnetically permeable element 3106 may include any one or several magnetically permeable materials described in this application.
  • the processing method of the first magnetic conductive element 3104 and/or the second magnetic conductive element 3106 may include any one or several processing methods described in this application.
  • the first magnetic element 3102, the first magnetic permeable element 3104, and/or the second magnetic element 3108 may be configured as an axisymmetric structure.
  • the first magnetic element 3102, the first magnetic permeable element 3104, and/or the second magnetic element 3108 may be a cylinder.
  • the first magnetic element 3102, the first magnetic conductive element 3104, and/or the second magnetic element 3108 may be coaxial cylinders, containing the same or different diameters.
  • the thickness of the first magnetic element 3102 may be greater than or equal to the thickness of the second magnetic element 3108.
  • the second magnetic conductive element 3106 may be a groove type structure.
  • the groove-shaped structure may include a U-shaped cross section.
  • the groove-shaped second magnetic conductive element 3106 may include a bottom plate and a side wall.
  • the bottom plate and the side wall may be integrally formed, for example, the side wall may be formed by the bottom plate extending in a direction perpendicular to the bottom plate.
  • the bottom plate may be connected to the side wall by any one or several connection methods described in this application.
  • the second magnetic element 3108 may be set in a ring shape or a sheet shape. For the shape of the second magnetic element 3108, reference may be made to the description elsewhere in the specification.
  • the second magnetic element 3108 may be coaxial with the first magnetic element 3102 and/or the first magnetic conductive element 3104.
  • the upper surface of the first magnetic element 3102 may be connected to the lower surface of the first magnetic conductive element 3104.
  • the lower surface of the first magnetic element 3102 may be connected to the bottom plate of the second magnetic element 3106.
  • the lower surface of the second magnetic element 3108 is connected to the upper surface of the first magnetic conductive element 3104.
  • the connection modes between the first magnetic element 3102, the first magnetic permeable element 3104, the second magnetic permeable element 3106 and/or the second magnetic element 3108 may include one of bonding, clamping, welding, riveting, bolting, etc. or Many combinations.
  • a magnetic gap is formed between the first magnetic element 3102, the first magnetic conductive element 3104, and/or the second magnetic element 3108 and the side wall of the second magnetic conductive element 3106.
  • the voice coil may be disposed in the magnetic gap.
  • the first magnetic element 3102, the first magnetic conductive element 3104, the second magnetic conductive element 3106, and the second magnetic element 3108 may form a magnetic circuit.
  • the magnetic circuit assembly 3100 can generate a first full magnetic field, and the first magnetic element 3102 can generate a second magnetic field.
  • the first full magnetic field is a magnetic field generated by all components in the magnetic circuit assembly 3100 (for example, the first magnetic element 3102, the first magnetic conductive element 3104, the second magnetic conductive element 3106, and the second magnetic element 3108) Formed together.
  • the magnetic field strength of the first full magnetic field in the magnetic gap (may also be referred to as magnetic induction strength or magnetic flux density) is greater than the magnetic field strength of the second magnetic field in the magnetic gap.
  • the second magnetic element 3108 may generate a third magnetic field, which may increase the magnetic field strength of the second magnetic field at the magnetic gap.
  • the angle between the magnetization direction of the second magnetic element 3108 and the magnetization direction of the first magnetic element 3102 is between 90 degrees and 180 degrees. In some embodiments, the angle between the magnetization direction of the second magnetic element 3108 and the magnetization direction of the first magnetic element 3102 is between 150 degrees and 180 degrees. In some embodiments, the magnetization direction of the second magnetic element 3108 is opposite to the magnetization direction of the first magnetic element 3102 (as shown, the a direction and the b direction).
  • the magnetic circuit assembly 3100 Compared with the magnetic circuit assembly of a single magnetic element, the magnetic circuit assembly 3100 adds a second magnetic element 3108.
  • the magnetization direction of the second magnetic element 3108 is opposite to the magnetization direction of the first magnetic element 3102, which can suppress the magnetic leakage of the first magnetic element 3102 in the magnetization direction, so that the magnetic field generated by the first magnetic element 3102 can be more compressed to the magnetic In the gap, the magnetic induction in the magnetic gap is increased.
  • the magnetic element in the magnetic circuit assembly is not limited to the above-mentioned first magnetic element, second magnetic element, third magnetic element, fourth magnetic element, fifth magnetic element, sixth magnetic element, seventh magnetic element, but also Increase or decrease the number of magnetic components. Such deformations are within the scope of protection of this application.
  • the above-described speaker device can also transmit sound to the user through air conduction.
  • the speaker device may include one or more sound sources.
  • the sound source may be located at a specific position on the user's head, for example, the top of the head, forehead, cheeks, temples, pinna, back of the pinna, etc., without blocking or covering the ear canal.
  • FIG. 33 shows a schematic diagram of transmitting sound through air conduction.
  • the sound source 3310 and the sound source 3320 can generate sound waves of opposite phases ("+" and "-" in the figure indicate opposite phases).
  • the sound source mentioned here refers to the sound output hole of the speaker device to output sound.
  • the sound source 3310 and the sound source 3320 may be two sound holes located at specific positions on the MP3 player (for example, the movement housing 20 or the circuit housing 30).
  • the sound source 3310 and the sound source 3320 may be generated by the same vibration device 3301.
  • the vibration device 3301 includes a diaphragm (not shown in the figure).
  • the front of the diaphragm drives air vibration
  • a sound source 3310 is formed at the sound hole through the sound guide channel 3312, and the air is driven to vibrate on the back of the diaphragm, and the sound is emitted through the sound guide channel 3322
  • the sound source 3320 is formed at the hole.
  • the sound guide channel refers to a sound propagation path from the diaphragm to the corresponding sound hole.
  • the sound guide channel is a path surrounded by a specific structure on the speaker (for example, the movement housing 20 or the circuit housing 30). It should be understood that, in some alternative embodiments, the sound source 3310 and the sound source 3320 may also be generated by different vibration devices through different diaphragm vibrations.
  • the sound transmitted to the user's ear may be referred to as near-field sound
  • the leaked sound transmitted to the environment may be referred to as far-field sound.
  • the near-field/far-field sounds of different frequencies generated by the speaker device are related to the distance between the sound source 3310 and the sound source 3320.
  • the near-field sound generated by the speaker device increases as the distance between the two sound sources increases, and the generated far-field sound (leakage) increases as the frequency increases.
  • the distance between the sound source 3310 and the sound source 3320 can be designed separately so that the low-frequency near-field sound (for example, sound with a frequency less than 800 Hz) generated by the speaker device is as large as possible, and the high-frequency far-field sound (for example, (Sounds with a frequency greater than 2000Hz) are as small as possible.
  • the speaker device may include two or more sets of dual sound sources.
  • Each set of dual sound sources includes two sound sources similar to the sound source 3310 and the sound source 3320, and respectively generates sounds with specific frequencies. Specifically, the first set of dual sound sources can be used to generate low frequency sounds, and the second set of dual sound sources can be used to generate high frequency sounds.
  • the distance between the two sound sources in the first set of dual sound sources can be set to a larger value. And because the wavelength of the low-frequency signal is long, the large distance between the two sound sources will not form an excessive phase difference in the far field, and therefore will not form excessive sound leakage in the far field.
  • the distance between the two sound sources in the second set of dual sound sources can be set to a smaller value. Due to the short wavelength of the high-frequency signal, the small distance between the two sound sources can avoid the formation of a large phase difference in the far field, thus avoiding the formation of large sound leakage.
  • the distance between the second set of dual sound sources is less than the distance between the first set of dual sound sources.
  • the beneficial effects that the embodiments of the present application may bring include, but are not limited to: (1) In this application, the sealing effect between the various components can improve the waterproof effect of the speaker device; (2) By adjusting the normal A of the panel or the panel and The angle ⁇ between the normal A'of the human skin contact surface and the straight line B where the driving force of the device can improve the sound quality of the speaker; (3) By increasing the overall rigidity of the housing, the shell panel and the back of the shell can be operated at a higher frequency Maintain the same or substantially the same vibration amplitude and phase to reduce the sound leakage of the speaker device; (4) By adding magnetic elements, magnetic conductive elements and conductive elements in the magnetic circuit assembly, the sensitivity of the speaker device can be improved. It should be noted that different embodiments may have different beneficial effects. In different embodiments, the possible beneficial effects may be any one or a combination of the above, or any other possible beneficial effects.
  • the present application uses specific words to describe the embodiments of the present application.
  • “one embodiment”, “one embodiment” and/or “some embodiments” means a certain feature, structure or characteristic related to at least one embodiment of the present application. Therefore, it should be emphasized and noted that “one embodiment” or “one embodiment” or “an alternative embodiment” mentioned twice or more at different positions in this specification does not necessarily refer to the same embodiment .
  • certain features, structures, or characteristics in one or more embodiments of the present application may be combined as appropriate.
  • Some embodiments use numbers describing the number of components and attributes. It should be understood that such numbers used in the embodiment descriptions use the modifiers "about”, “approximately”, or “generally” in some examples. To retouch. Unless otherwise stated, “approximately”, “approximately” or “substantially” indicates that the figures allow a variation of ⁇ 20%.
  • the numerical data used in the specification and claims are approximate values, and the approximate values may be changed according to the characteristics required by individual embodiments. In some embodiments, the numerical data should consider the specified significant digits and adopt the method of general digit retention.
  • the numerical fields and data used to confirm the breadth of the ranges in some embodiments of the present application are approximate values, in specific embodiments, the setting of such numerical values is as accurate as possible within the feasible range.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Manufacturing & Machinery (AREA)
  • General Health & Medical Sciences (AREA)
  • Neurosurgery (AREA)
  • Headphones And Earphones (AREA)
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Abstract

一种扬声器装置，包括：用于容纳控制电路（60）或电池（70）的电路壳体（30），控制电路（60）或电池（70）驱动耳机芯（50）振动以产生声音；用于容纳耳机芯（50）的机芯壳体（20），机芯壳体（20）包括面向人体的外壳面板（222）和与外壳面板（222）相对的外壳背面（224）；耳机芯（50）导致外壳面板（222）和外壳背面（224）振动，外壳面板（222）的振动具有第一相位，外壳背面（224）的振动具有第二相位；外壳面板（222）的振动和外壳背面（224）的振动频率在2000Hz到3000Hz时，第一相位和第二相位的差值的绝对值小于60度；用于连接机芯壳体（20）和电路壳体（30）的耳挂（10）；以及至少部分包覆于电路壳体（30）和耳挂（10）的外围的壳体护套（17）。通过各个部件间的密封连接，提高了扬声器装置整体的防水效果。

Description

一种扬声器装置
优先权信息
本申请要求于2019年1月5日提交的中国申请号201910009874.6的优先权，其全部内容通过引用的方式并入本文。
技术领域
本申请涉及一种扬声器装置，特别涉及一种具有防水功能的扬声器装置。
背景技术
一般情况下，人能够听见声音是因为空气通过外耳耳道把振动传递到耳膜，通过耳膜形成的振动驱动人的听觉神经，由此感知声音。目前，耳机在人们的生活中用途广泛，例如，用户可以使用耳机播放音乐、接听电话等，耳机已经成为人们日常生活的重要物品。但是普通的耳机已无法满足用户在一些特殊场景(例如，游泳、户外雨天等)下的正常使用，目前具有防水功能且音质较佳的耳机更受消费者青睐。因此，有必要提供一种具有防水功能的扬声器装置。
发明内容
本说明书实施例提供一种扬声器装置，其包括：电路壳体，用于容纳控制电路或电池，所述控制电路或电池驱动耳机芯振动以产生声音；机芯壳体，用于容纳所述耳机芯；所述机芯壳体包括面向人体一侧的外壳面板和与所述外壳面板相对的外壳背面；所述耳机芯导致所述外壳面板和所述外壳背面振动，所述外壳面板的振动具有第一相位，所述外壳背面的振动具有第二相位；其中，所述外壳面板的振动和所述外壳背面的振动频率在2000Hz到3000Hz时，所述第一相位和所述第二相位的差值的绝对值小于60度；耳挂，用于连接所述机芯壳体和所述电路壳体；以及壳体护套，至少部分包覆于所述电路壳体和所述耳挂的外围，所述壳体护套由防水材料制成。
在一些实施例中，所述壳体护套为一端开口的袋状结构，以使得所述电路壳体经由所述壳体护套的开口端进入所述壳体护套的内部。
在一些实施例中，所述壳体护套的开口端设置有向内凸出的环状凸缘，当所述壳体护套包覆于所述电路壳体的外围时，所述环状凸缘抵接于所述电路壳体远离所述耳挂的端部。
在一些实施例中，在所述环状凸缘与所述电路壳体远离所述耳挂的端部的接合区域施加有密封胶，以对所述壳体护套和电路壳体进行密封连接。
在一些实施例中，所述电路壳体远离所述耳挂的端部包含第一环形台面，所述第一环形台面与所述环状凸缘卡接连接，以对所述壳体护套进行定位。
在一些实施例中，所述第一环形台面上设置有沿所述电路壳体背离所述耳挂的方向延伸的定位块，所述壳体护套的环状凸缘处设置有与所述定位块对应的定位槽，所述定位槽用于容纳至少 部分所述定位块，以对所述壳体护套进行定位。
在一些实施例中，所述电路壳体包括彼此扣合的两个子壳体，所述壳体护套对所述两个子壳体的接合缝进行全覆盖。
在一些实施例中，两个所述子壳体彼此对接的接合面包括相互契合的阶梯结构。
在一些实施例中，所述电路壳体上设置有多个安装孔，并在所述电路壳体的外表面凹陷设置有第一胶槽，所述多个安装孔位于所述第一胶槽内；所述扬声器装置进一步包括分别插置于所述安装孔内的导电柱，所述壳体护套进一步包括允许所述导电柱外露的外露孔，其中在所述第一胶槽内施加有密封胶，以在所述安装孔的外围对所述壳体护套和所述电路壳体进行密封连接。
在一些实施例中，所述扬声器装置进一步包括辅助片，所述辅助片包括板体，所述板体上设置有镂空区，其中所述板体设置于所述电路壳体的内表面上，且所述安装孔位于所述镂空区内部，进而在所述导电柱外围形成第二胶槽，其中在所述第二胶槽内施加有密封胶，以在所述电路壳体的内部对所述安装孔进行密封。
在一些实施例中，所述机芯壳体设置有接插孔；所述耳挂包括弹性金属丝以及设置于所述弹性金属丝一端的接插端，所述接插端与所述接插孔插接连接。
在一些实施例中，所述接插孔的内侧壁上设置有止挡块；所述接插端包括：插入部，至少部分插入于所述接插孔内并抵接于所述止挡块的外侧面上；两个弹性卡勾，设置于所述插入部朝向所述机芯壳体内部的一侧，两个弹性卡勾能够在外部推力和所述止挡块的作用下彼此并拢，并在经过所述止挡块后弹性回复成卡置于所述止挡块的内侧面上，进而实现所述机芯壳体与所述接插端的接插固定。
在一些实施例中，所述插入部部分插入于所述接插孔内，且在所述插入部的外露部分呈阶梯状设置，进而形成与所述机芯壳体的外端面间隔设置的第二环形台面，所述耳挂还包括设置于所述弹性金属丝以及所述接插端外围的保护套管，所述保护套管进一步延伸至所述第二环形台面朝向所述机芯壳体的外端面的一侧，并在所述机芯壳体与所述接插端接插固定时与所述机芯壳体弹性抵接。
在一些实施例中，所述保护套管在所述第二环形台面朝向所述机芯壳体的外端面的一侧形成一环形抵接面以及位于所述环形抵接面内部且相对于所述环形抵接面凸出设置的环形凸台；所述机芯壳体包括用于连接所述机芯壳体的外端面和所述接插孔的内侧壁的连接斜面；其中，在所述机芯壳体与所述接插端接插固定时，所述环形抵接面和所述环形凸台分别与所述机芯壳体的外端面和所述连接斜面弹性抵接。
在一些实施例中，所述外壳面板的振动具有第一振幅，所述外壳背面的振动具有第二振幅，所述第一振幅和所述第二振幅的比值在0.5到1.5的范围之内。
在一些实施例中，所述外壳面板的振动产生第一漏音声波，所述外壳背面的振动产生第二漏音声波，所述第一漏音声波和所述第二漏音声波相互叠加，所述叠加减小所述第一漏音声波的幅值。
在一些实施例中，所述外壳面板与所述外壳其它部分通过胶水、卡接、焊接或螺纹连接中的一种或任意几种的组合进行连接。
在一些实施例中，所述外壳面板和所述外壳背面由纤维增强塑料材料制成。
在一些实施例中，所述耳机芯振动能够产生驱动力；所述外壳面板与所述耳机芯具有传动连接；所述外壳面板的全部或局部用于与使用者身体接触或抵靠，以传导声音；所述外壳面板上用于与使用者身体接触或抵靠的区域具有法线，所述驱动力所在直线与所述法线不平行。
在一些实施例中，设定所述驱动力所在直线具有经面板指向扬声器装置外的正方向，设定所述法线具有指向扬声器装置外的正方向，则两条直线在其正方向上的夹角为锐角。
在一些实施例中，所述耳机芯包括线圈以及磁路系统，线圈与磁路系统的轴线与所述法线不平行；所述轴线与线圈径向平面和/或磁路系统径向平面垂直。
在一些实施例中，所述驱动力在XOY平面坐标系的第一象限和/或第三象限内具有分量；其中，XOY平面坐标系的原点O位于扬声器装置与人体接触面上，X轴与人体冠状轴平行，Y轴与人体矢状轴平行，且X轴正方向朝向人体外侧，Y轴正方向朝向人体前方。
在一些实施例中，所述外壳面板上用于与使用者身体接触或抵靠的区域包括平面或准平面。
在一些实施例中，所述耳机芯还包括磁路组件，所述磁路组件产生第一磁场，所述磁路组件包括：第一磁性元件，所述第一磁性元件产生第二磁场；第一导磁元件；以及至少一个第二磁性元件，所述至少一个第二磁性元件环绕所述第一磁性元件，并与所述第一磁性元件之间形成磁间隙，所述第一磁场在所述磁间隙内的磁场强度大于所述第二磁场在所述磁间隙内的磁场强度。
在一些实施例中，所述磁路组件进一步包括：第二导磁元件；以及
至少一个第三磁性元件，其中，所述至少一个第三磁性元件连接所述第二导磁元件和所述至少一个第二磁性元件。
在一些实施例中，所述磁路组件进一步包括：至少一个第四磁性元件，其中，所述至少一个第四磁性元件位于所述磁间隙的下方并连接所述第一磁性元件以及所述第二导磁元件。
在一些实施例中，所述磁路组件进一步包括：至少一个第五磁性元件，其中，所述至少一个第五磁性元件连接所述第一导磁元件的上表面。
在一些实施例中，所述磁路组件进一步包括：第三导磁元件，其中，所述第三导磁元件连接所述第五磁性元件的上表面，所述第三导磁元件被配置为抑制所述第一磁场的场强泄露。
在一些实施例中，所述第一导磁元件连接所述第一磁性元件的上表面，所述第二导磁元件包括底板和侧壁，以及所述第一磁性元件连接所述第二导磁元件的底板。
在一些实施例中，所述磁路组件进一步包括：至少一个导电元件，其中，所述导电元件连接所述第一磁性元件、所述第一导磁元件，或所述第二导磁元件中的至少一个元件。
附图说明
本申请将以示例性实施例的方式进一步说明，这些示例性实施例将通过附图进行详细描述。 这些实施例并非限制性的，在这些实施例中，相同的编号表示相同的结构，其中：
图1是扬声器装置导致人耳产生听觉的过程；
图2是根据本申请一些实施例提供的MP3播放器爆炸结构示意图；
图3是根据本申请一些实施例提供的MP3播放器中耳挂的部分结构示意图；
图4是图3中A部分的局部放大图；
图5是根据本申请一些实施例提供的MP3播放器的局部截面图；
图6是图5中B部分的局部放大图；
图7是根据本申请一些实施例提供的MP3播放器的局部结构截面图；
图8是图7中C部分的局部放大图；
图9是根据本申请一些实施例提供的MP3播放器中电路壳体与耳挂的部分爆炸图；
图10是图2中E部分的局部放大图；
图11是根据本申请一些实施例提供的MP3播放器中电路壳体的截面图；
图12是图11中F部分的局部放大图；
图13是根据本申请一些实施例提供的MP3播放器中电路壳体与后挂的局部结构爆炸图；
图14是根据本申请一些实施例提供的MP3播放器中电路壳体与后挂的局部结构截面图；
图15是根据本申请一些实施例提供的MP3播放器中后挂的局部结构示意图；
图16是根据本申请一些实施例提供的扬声器的应用场景及结构示意图；
图17根据是本申请一些实施例提供的一种夹角方向的示意图；
图18根据是本申请一些实施例提供的骨传导扬声器作用于人体皮肤、骨骼的结构示意图；
图19是根据本申请一些实施例提供的骨传导扬声器的夹角-相对位移关系图；
图20是根据本申请一些实施例提供的不同夹角θ时骨传导扬声器的频率响应曲线低频段部分的示意图；
图21是根据本申请的一些实施例所示的骨传导扬声器的纵截面示意图；
图22是根据本申请一些实施例提供的一个骨传导扬声器的结构示意图；
图23是根据本申请一些实施例提供的另一个骨传导扬声器的结构示意图；
图24是根据本申请一些实施例提供的又一个骨传导扬声器的结构示意图；
图25是根据本申请一些实施例提供的骨传导扬声器的壳体结构示意图；
图26是根据本申请一些实施例提供的骨传导扬声器的结构示意图；
图27是根据本申请的一些实施例所示的一种磁路组件2100的纵截面示意图；
图28是根据本申请的一些实施例所示的磁路组件2600的纵截面示意图；
图29是根据本申请的一些实施例所示的一种磁路组件2700的纵截面示意图；
图30是根据本申请的一些实施例所示的一种磁路组件2900的纵截面示意图；
图31是根据本申请的一些实施例所示的一种磁路组件3000的纵截面示意图；
图32是根据本申请的一些实施例所示的一种磁路组件3100的纵截面示意图；以及
图33是根据本申请的一些实施例所示的通过气传导传递声音的示意图。
具体实施方式
为了更清楚地说明本申请的实施例的技术方案，下面将对实施例描述中所需要使用的附图作简单的介绍。显而易见地，下面描述中的附图仅仅是本申请的一些示例或实施例，对于本领域的普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图将本申请应用于其他类似情景。应当理解，给出这些示例性实施例仅仅是为了使相关领域的技术人员能够更好地理解进而实现本发明，而并非以任何方式限制本发明的范围。除非从语言环境中显而易见或另做说明，图中相同标号代表相同结构或操作。
如本申请和权利要求书中所示，除非上下文明确提示例外情形，“一”、“一个”、“一种”和/或“该”等词并非特指单数，也可包括复数。一般说来，术语“包括”与“包含”仅提示包括已明确标识的步骤和元素，而这些步骤和元素不构成一个排它性的罗列，方法或者设备也可能包含其他的步骤或元素。术语“基于”是“至少部分地基于”。术语“一个实施例”表示“至少一个实施例”；术语“另一实施例”表示“至少一个另外的实施例”。其他术语的相关定义将在下文描述中给出。以下，不失一般性，在描述本发明中声音传导相关技术时，将采用“播放器”、“扬声器装置”、“扬声装置”或“扬声器”的描述。该描述仅仅为声音传导应用的一种形式，对于该领域的普通技术人员来说，“播放器”、“播放装置”、“扬声器装置”、“扬声装置”或“助听器”也可用其他同类词语代替。事实上，本发明中的各种实现方式可以很方便地应用到其它非扬声器类的听力设备上。例如，对于本领域的专业人员来说，在了解扬声器装置的基本原理后，可能在不背离这一原理的情况下，对实施扬声器的具体方式与步骤进行形式和细节上的各种修正和改变，特别地，扬声器中加入环境声音拾取和处理功能，使该扬声器实现助听器的功能。例如，在使用骨传导扬声器的情况下，加入可以拾取使用者/佩戴者周围环境的声音的麦克风等传声器，在一定的算法下，将声音处理后(或者产生的电信号)传送至骨传导扬声器部分。即，骨传导扬声器可以经过一定的修改，加入拾取环境声音的功能，并经过一定的信号处理后通过骨传导扬声器部分将声音传递给使用者/佩戴者，从而实现骨传导助听器的功能。作为举例，这里所说的算法可以包括噪声消除、自动增益控制、声反馈抑制、宽动态范围压缩、主动环境识别、主动抗噪、定向处理、耳鸣处理、多通道宽动态范围压缩、主动啸叫抑制、音量控制等一种或多种的组合。
图1为扬声器装置导致人耳产生听觉的过程。扬声器装置通过其自带的扬声器可以通过骨传导或者气传导的方式将声音传递给听力系统，从而产生听觉。如图1所示，扬声器装置使人耳产生听觉的过程主要包括以下几个步骤：
在步骤101中，扬声器装置可以获取或者产生含有声音信息的信号。在一些实施例中，声音信息可以指具有特定数据格式的视频、音频文件，也可以指一般意义上能够携带最终可通过特定途径转化为声音的数据或文件。在一些实施例中，含有声音信息的信号可以来自于扬声器装置本身的存储单元，也可以来自于扬声器装置以外的信息产生、存储或者传递系统。此处所讨论的声音信 号并不局限于电信号，也可包括电信号之外的其它形式的如光信号、磁信号、机械信号等。原则上，只要该信号包含有扬声器装置可以用以产生声音的信息，均可作为声音信号进行处理。在一些实施例中，声音信号也不局限于一个信号源，可以来自于多个信号源。这些多个信号源可以相关也可以相互无关。在一些实施例中，声音信号传递或产生的方式可以是有线的也可以是无线的，可以是实时的也可以是延时的。例如，扬声器装置可以通过有线或者无线的方式接收含有声音信息的电信号，也可以直接从存储介质上获取数据，产生声音信号。以骨传导技术作为示例性说明，在骨传导扬声器中可以加入具有声音采集功能的组件，通过拾取环境中的声音，将声音的机械振动转换成电信号，通过放大器处理后获得满足特定要求的电信号。其中，有线连接包括但不限于使用金属电缆、光学电缆或者金属和光学的混合电缆，例如：同轴电缆、通信电缆、软性电缆、螺旋电缆、非金属护皮电缆、金属护皮电缆、多芯电缆、双绞线电缆、带状电缆、屏蔽电缆、电信电缆、双股电缆、平行双芯导线、和双绞线。
以上描述的例子仅作为方便说明之用，有线连接的媒介还可以是其它类型，例如，其它电信号或光信号等的传输载体。
这里所说的存储设备/存储单元，包括直接连接存储(Direct Attached Storage)，网络附加存储(Network Attached Storage)和存储区域网络(Storage Area Network)等存储系统上的存储设备。存储设备包括但不限于常见的各类存储设备如固态存储设备(固态硬盘、固态混合硬盘等)、机械硬盘、USB闪存、记忆棒、存储卡(如CF、SD等)、其他驱动(如CD、DVD、HD DVD、Blu-raY等)、随机存储器(RAM)和只读存储器(ROM)。其中RAM有但不限于：十进计数管、选数管、延迟线存储器、威廉姆斯管、动态随机存储器(DRAM)、静态随机存储器(SRAM)、晶闸管随机存储器(T-RAM)、和零电容随机存储器(Z-RAM)等；ROM又有但不限于：磁泡存储器、磁钮线存储器、薄膜存储器、磁镀线存储器、磁芯内存、磁鼓存储器、光盘驱动器、硬盘、磁带、早期NVRAM(非易失存储器)、相变化内存、磁阻式随机存储式内存、铁电随机存储内存、非易失SRAM、闪存、电子抹除式可复写只读存储器、可擦除可编程只读存储器、可编程只读存储器、屏蔽式堆读内存、浮动连接门随机存取存储器、纳米随机存储器、赛道内存、可变电阻式内存、和可编程金属化单元等。以上提及的存储设备/存储单元是列举了一些例子，该存储设备/存储单元可以使用的存储设备并不局限于此。
在步骤102中，扬声器装置可以将含有声音信息的信号转换成振动并产生声音。振动的产生伴随着能量的转换，扬声器装置可以使用特定的换能装置实现信号向机械振动转换。转换的过程中可能包含多种不同类型能量的共存和转换。例如，电信号通过换能装置可以直接转换成机械振动，产生声音。再例如，声音信息包含在光信号中，一种特定的换能装置可以实现由光信号转换为振动信号的过程。其它可以在换能装置工作过程中共存和转换的能量类型包括热能、磁场能等。在一些实施例中，换能装置的能量转换方式包括但不限于动圈式、静电式、压电式、动铁式、气动式、电磁式等。扬声器装置的频率响应范围以及音质会受到不同换能方式以及换能装置中各个物理组件性能的影响。例如，在动圈式换能装置中，缠绕的柱状线圈与振动板相连，受信号电流驱动的线圈在 磁场中带动振动板振动发声，振动板材质的伸展和收缩、褶皱的变形、大小、形状以及固定方式，永磁体的磁密度等，都会对扬声器装置最终的音效质量带来很大的影响。
这里使用的术语“音质”可以理解为能够反映出声音的质量，指经处理、传输等过程后音频的保真度。在声音设备中，音质通常包含几个方面的内容，包括音频的强度和幅度、音频的频率、音频的泛音或谐波成分等。在评定声音音质时，既有客观评价音质的测量方法和评价标准，也有结合声音不同要素和主观感受来评价音质各种属性的方法，因此声音的产生、传递以及接收过程都会一定程度上影响声音的音质。
在步骤103中，声音通过传递系统进行传递。在一些实施例中，传递系统是指可以传递包含声音信息的振动信号的物质，例如，人或/和有听力系统的动物的颅骨、骨迷路、内耳淋巴液、螺旋器。又例如，可以传递声音的介质(例如，空气、液体)。仅仅为了说明声音信息通过传递系统进行传递的过程，以骨传导扬声器作为示例性说明，骨传导扬声器可以将电信号转化的声波(振动信号)直接通过骨头传至听觉中枢。此外还可以通过气传导的方式将声波传递至听觉中枢，关于气传导的内容请参见本说明书中其他地方的具体描述。
在步骤104中，声音信息被传递至传感终端。具体地，声音信息通过传递系统传递给传感终端。在一种工作场景中，扬声器装置拾取或产生含有声音信息的信号，通过换能装置将声音信息转换成声音振动，并通过传递系统将声音传递给传感终端，最终听到声音。不失一般性，以上描述的传感终端、听力系统、感觉器官等的主体可以是人，也可以是具有听力系统的动物。需要注意的是，以下对于人类使用扬声器装置的描述并不构成对扬声器装置使用场景的限制，类似的描述同样可以适用于其它动物。
以上对扬声器装置大致流程的描述仅仅是具体的示例，不应被视为是唯一可行的实施方案。显然，对于本领域的专业人员来说，在了解扬声器装置的基本原理后，可能在不背离这一原理的情况下，对实施扬声器装置的具体方式与步骤进行形式和细节上的各种修正和改变，但是这些修正和改变仍在以上描述的范围之内。
扬声器装置可以包括但不限于耳机、MP3播放器、助听器，本申请的具体实施方式中以MP3播放器为例，对扬声器装置进行具体说明。
图2是本申请的一些实施例提供的MP3播放器的爆炸结构示意图。
如图2所示，MP3播放器可以包括：耳挂10、机芯壳体20、电路壳体30、后挂40，以及耳机芯50、控制电路60、电池70。其中，机芯壳体20与电路壳体30分别设置于耳挂10的两端，后挂40则进一步设置于电路壳体30远离耳挂10的一端。其中，机芯壳体20的数量为两个，分别用于容纳耳机芯50，电路壳体30的数量也为两个，分别用来容纳控制电路60和电池70，后挂40的两端分别连接对应的电路壳体30。
图3是本申请一些实施例提供的MP3播放器中耳挂的部分结构示意图；图4是图3中A部分的局部放大图。
结合图2、图3以及图4，耳挂10包括弹性金属丝11、导线12、固定套管13以及设置于 弹性金属丝11两端的接插端14和接插端15，还进一步包括保护套管16以及与保护套管16一体成型的壳体护套17。
保护套管16可注塑形成于弹性金属丝11、导线12、固定套管13、接插端14和接插端15的外围，从而将保护套管16分别与弹性金属丝11、导线12、固定套管13、接插端14和接插端15固定连接，而无需将保护套管16单独注塑形成后再进一步套装在弹性金属丝11以及接插端14、接插端15的外围，从而能够简化制作及装配工序，且通过这种方式，能够使得保护套管16的固定更加牢靠、稳定。
在一些实施例中，接插端14和接插端15上分别设置第一走线通道141和第二走线通道151。第一走线通道141可包括第一走线槽1411和连通第一走线槽1411的第一走线孔1412。接插端14处的导线12沿第一走线槽1411和第一走线孔1412延伸并外露于接插端14的外端面，以进一步与其它结构连接。相应地，第二走线通道151可包括第二走线槽1511和连通第二走线槽1511的第二走线孔1512。接插端15处的导线12沿第二走线槽1511和第二走线孔1512延伸并外露于接插端15的外端面，以进一步与其它结构连接。其中，耳挂10的导线12的位于机芯壳体20的外部的一端可穿过第二走线通道151而进一步连接电路壳体30所容纳的控制电路60、电池70等机芯壳体20外部的外部电路，另一端则沿第一走线通道141而露出于接插端14的外端面，并进一步随插入部142而通过接插孔22而进入机芯壳体20内部。
参照图2，在一些实施例中，在成型保护套管16时，同时与该保护套管16一体成型有设置于靠近接插端15一侧的壳体护套17。其中，壳体护套17可与保护套管16一体成型而成为一整体，电路壳体30可通过与接插端15的接插固定而连接设置在耳挂10的一端，壳体护套17则可进一步以套装的方式包覆于在电路壳体30的外围。其中，保护套管16和壳体护套17可以由具有一定弹性的软质材料制成，例如软质的硅胶、橡胶等。
在一些实施例中，机芯壳体20可用于容纳耳机芯50，并与接插端14接插固定。其中，耳机芯50和机芯壳体20的数量均为两个，分别对应用户的左耳和右耳。例如，在工作过程中，机芯壳体20分别贴合在用户左耳和右耳的附近位置。
结合图2和图3，在一些实施例中，机芯壳体20可以与接插端14通过插接、卡接等方式连接，以将机芯壳体20与耳挂10固定在一起。也就是说，本实施方式中，耳挂10与机芯壳体20可先分别成型，然后再进一步装配在一起，而不是将二者一体直接成型。通过这种方式，可以采用各自对应的模具对耳挂10和机芯壳体20分别成型，而无需采用同一个较大尺寸的模具将二者一体成型，从而可减小模具的尺寸，以降低模具的加工难度，以及成型难度；另外，由于耳挂10和机芯壳体20分别采用不同的模具加工，在生产制造过程中，在需要对耳挂10或机芯壳体20中的某一个的形状或者构造进行调整时，仅调整该结构对应的模具即可，而无需对另外一个结构的模具进行调整，从而能够降低生产成本。在一些实施例中，也可以根据情况使耳挂10与机芯壳体20通过一体成型得到。
图5是本申请一些实施例提供的MP3播放器的局部截面图；图6是图5中B部分的局部 放大图。结合图2、图5和图6，在一些实施例中，机芯壳体20设置有与机芯壳体20的外端面21连通的接插孔22，接插孔22的内侧壁上设置有止挡块23。其中，机芯壳体20的外端面21是指机芯壳体20朝向耳挂10的端面。接插孔22用于为耳挂10的接插端14插入机芯壳体20提供容置空间，以便进一步实现接插端14与机芯壳体20的接插固定。其中，止挡块23可以由接插孔22的内侧壁沿垂直于该内侧壁的方向凸出形成。在一些实施例中，止挡块23可以为多个间隔设置的块状凸起，或者也可以为沿接插孔22内侧壁的环状凸起，此处不做具体限定。
结合图3和图6，在一些实施例中，接插端14可以包括插入部142和两个弹性卡勾143。具体地，插入部142至少部分插入于接插孔22内并抵接于止挡块23的外侧面231上。其中，插入部142的外侧壁的形状与接插孔22的内侧壁的形状匹配，以使得插入部142至少部分插入于接插孔22内时，使得插入部142的外侧壁与接插孔22的内侧壁抵接。具体地，止挡块23的外侧面231是指止挡块23朝向耳挂10设置的一侧面。插入部142还可以包括一朝向机芯壳体20的端面1421，该端面1421可与止挡块23的外侧面231匹配，从而在插入部142至少部分插入于接插孔22内时，插入部142的端面1421与止挡块23的外侧面231抵接。
结合图2和图4，在一些实施例中，两个弹性卡勾143可沿垂直于插入方向并排并间隔且对称设置于插入部142朝向机芯壳体20内部的一侧。其中，每个弹性卡勾143可分别包括梁部1431和勾部1432，梁部1431与插入部142朝向机芯壳体20的一侧连接，勾部1432设置在梁部1431远离插入部142的一端，并沿垂直于插入方向延伸。进一步地，每个勾部1432设置有连接平行于插入方向的侧面与远离插入部142的端面的过渡斜面14321。
结合图2、图3、图4和图6，在耳挂10与机芯壳体20的安装过程当中，接插端14由接插孔22逐渐进入机芯壳体20内部，在到达止挡块23的位置时，两个弹性卡勾143的勾部1432会受到止挡块23的阻挡，在外部推力的作用下，止挡块23逐渐挤压勾部1432的过渡斜面14321而使得两个弹性卡勾143发生弹性形变而彼此并拢，在过渡斜面14321通过止挡块23而到达止挡块23靠近机芯壳体20内部的一侧时，弹性卡勾143因失去止挡块23的阻挡而弹性回复，并卡置于止挡块23朝向机芯壳体20内部的内侧面上，从而将止挡块23卡置于接插端14的插入部142和勾部1432之间，进而实现机芯壳体20与接插端14的接插固定。
在一些实施例中，在机芯壳体20与接插端14接插固定后，插入部142部分插入于接插孔22内，且在插入部142的外露部分呈阶梯状设置，进而形成与机芯壳体20的外端面21间隔设置的环形台面1422。此处需要说明的是，插入部142的外露部分是指插入部142外露于机芯壳体20的部分，可以是指外露于机芯壳体20且靠近机芯壳体20外端面的部分。
在一些实施例中，环形台面1422可以与机芯壳体20的外端面21相对设置，且二者之间的间隔可以是指沿接插方向间隔以及沿垂直于接插方向的间隔。在一些实施例中，保护套管16延伸至环形台面1422朝向机芯壳体20的外端面21的一侧，并在机芯壳体20的接插孔22与接插端14接插固定时，填充于环形台面1422与机芯壳体20的外端面21之间的间隔内，并与机芯壳体20弹性抵接，从而使得外部液体难以从接插端14与机芯壳体20之间的接合处进入机芯壳体20内部， 进而实现接插端14与接插孔22之间的密封，以保护机芯壳体20内部的耳机芯50等，从而能够提高对MP3播放器的防水效果。
图7是本申请一些实施例提供的MP3播放器的局部结构截面图；图8是图7中C部分的局部放大图。结合图2、图7和图8，在一些实施例中，保护套管16在环形台面1422朝向机芯壳体20的外端面的21一侧形成一环形抵接面161。其中，该环形抵接面161为保护套管16朝向机芯壳体20一侧的端面。
在一些实施例中，保护套管16还包括位于该环形抵接面161内部且相对于环形抵接面161凸出设置的环形凸台162。具体地，该环形凸台162具体形成于环形抵接面161朝向接插端14的一侧，并相对于该环形抵接面161沿朝向机芯壳体20的方向凸出设置，进一步地，该环形凸台162还可直接形成于环形台面1422的外围，并覆盖该环形台面1422。
结合图2、图6和图8，在一些实施例中，机芯壳体20可以包括用于连接机芯壳体20的外端面21和接插孔22的内侧壁的连接斜面24。其中，该连接斜面24具体为机芯壳体20的外端面21与接插孔22的内侧壁之间的过渡面，该连接斜面24与机芯壳体20的外端面21和接插孔22的内侧壁均不在同一平面上。其中，该连接斜面24可以为平面，或者也可以根据实际需求而设置成曲面，或者其它形状，此处不做具体限定。
在一些实施例中，在机芯壳体20与接插端14接插固定时，环形抵接面161和环形凸台162分别与机芯壳体20的外端面和连接斜面24弹性抵接。此处需要说明的是，由于机芯壳体20的外端面21和连接斜面24不在同一平面上，从而使得保护套管16与机芯壳体20之间的弹性抵接处不位于同一平面上，从而使得外部液体难以由保护套管16与机芯壳体20之间进入机芯壳体20以进一步进入耳机芯50，从而能够提高MP3播放器的防水效果，以对内部功能结构起到保护作用，进而延长MP3播放器的使用寿命。
结合图2、图4和图6，在一些实施例中，插入部142在环形台面1422朝向机芯壳体20的外端面21的一侧进一步形成有与环形台面1422邻接的环形凹槽1423，其中，环形凸台162可形成于环形凹槽1423内。在该实施例中，环形凹槽1423可形成于环形台面1422朝向机芯壳体20的一侧。在一个应用场景中，环形台面1422为环形凹槽1423的朝向机芯壳体20一侧的侧壁面，此时，环形凸台162沿该侧壁面形成于环形凹槽1423内。
图9是本申请一些实施例提供的MP3播放器中电路壳体与耳挂的部分爆炸图；图10是本申请一些实施例提供的MP3播放器的部分结构的局部截面图。
结合图2、图3、图9和图10，在一些施方式中，电路壳体30与接插端15接插固定，从而将电路壳体30固定在耳挂10远离机芯壳体20的一端。其中，在用户佩戴使用时，容纳电池70的电路壳体30和容纳控制电路60的电路壳体30可分别对应用户的左侧和右侧，二者在与对应的接插端15的接插方式上可以不同。在一些实施例中，电路壳体30可以与接插端15通过插接、卡接等方式连接。本实施方式中，耳挂10与电路壳体30可先分别独立成型，然后并在成型完成后再进一步装配在一起，而不是直接将二者一体成型。通过这种方式，可以采用各自对应的模具对耳挂10 和电路壳体30分别成型，而无需采用同一个较大尺寸的模具将二者一体成型，从而可减小成型模具的尺寸，以降低模具的加工难度，以及成型难度；另外，由于耳挂10和电路壳体30分别采用不同的模具加工，在生产制造过程中，在需要对耳挂10或电路壳体30中的某一个的形状或者构造进行调整时，仅调整该结构对应的模具即可，而无需对另外一个结构的模具进行调整，从而能够降低生产成本。
在一些实施例中，电路壳体30设置有接插孔31，该接插孔31的内表面的形状可与接插端15的至少部分外表面的形状匹配，从而使得接插端15能够至少部分插入至接插孔31内。在一些实施例中，在接插端15的相对两侧分别设置有与接插端15相对于接插孔31的插入方向垂直设置的开槽152。具体地，两个开槽152对称且间隔设置于接插端15的相对两侧，且均在沿插入方向的垂直方向上连通接插端15的侧壁。
其中，电路壳体30可以呈扁平状设置，例如，电路壳体30于第二接插孔31处的横截面可以为椭圆形，或者能够形成扁平状设置的其它形状。本实施方式中，电路壳体30的面积较大的两个相对设置的侧壁为主侧壁33，连接两个主侧壁33的面积较小的且相对设置的两对侧壁为辅侧壁34。本实施方式中，电路壳体30的第一侧壁30a既可以为该电路壳体30的主侧壁33也可以为电路壳体30的辅侧壁34，具体可以根据实际需求进行设定。在一些实施例中，电路壳体30于接插孔31处的横截面还可以为圆形等其它形状，具体可根据实际需求进行设置。
在一些实施例中，MP3播放器还可以包括固定件81，固定件81包括两条平行设置的插脚811和用于连接插脚811的连接部812。具体地，连接部812可垂直连接设置于两条插脚811的朝向同一方向的一端，从而形成U型的固定件81。在一些实施例中，电路壳体30的第一侧壁30a上设置有与两个开槽152位置对应的贯穿该第一侧壁30a的两个通孔32。其中，两个插脚811远离连接部812的一端从电路壳体30的外侧经通孔32插入至开槽152，而将连接部812阻挡于电路壳体30的外侧，进而实现电路壳体30与接插端15的接插固定。
在一些实施例中，电路壳体30的第一侧壁30a上进一步形成有用于连接两个通孔32的条状凹槽35，在利用固定件81接插固定时，连接部812能够进一步部分或者全部沉设于条状凹槽35内。从而一方面能够使得MP3播放器整体更加统一，进而使得套装在电路壳体30外围的壳体护套17上无需专门成型设置与连接部812对应的凹槽，简化壳体护套17的模具；另一方面，还能够在一定程度上减小MP3播放器整体所占用的空间。
在一些实施例中，可以在将连接部812部分或者全部沉设于条状凹槽35内后，进一步在条状凹槽35内施胶，通过这种方式，一方面能够将固定件81固定在电路壳体30上，从而使得接插端15与接插孔31之间的接插更加稳固；另一方面，在连接部812沉设于条状凹槽35后，进一步通过施胶将凹槽35填平，以与电路壳体30的第一侧壁30a保持一致，从而在套设壳体护套17后，使得该凹槽35与周边结构之间更加平整连贯。
结合图2、图3和图9，在一些实施例中，与电路壳体30的第一侧壁30a相对的电路壳体30的第二侧壁30b上进一步设置有与通孔32相对的通孔36，插脚811进一步经开槽152插入至通 孔36内。具体地，电路壳体30的第一侧壁30a和电路壳体30的第二侧壁30b均可为电路壳体30的主侧壁33或者辅侧壁34。在本实施方式中，电路壳体30的第一侧壁30a和第二侧壁30b分别为电路壳体30的两个相对设置的主侧壁33，两个通孔32以及两个通孔36分别设置于电路壳体30的面积较大的侧壁上，进而固定件81的两个插脚811之间可以设置较大的间隔，以增大固定件81的跨度，从而能够提高接插端15与接插孔31之间接插的稳定性。
本实施方式中，插脚811经通孔32插入至开槽152内，并进一步经开槽152插入至通孔36内，也就是说插脚811能够将电路壳体30的两相对主侧壁33以及接插端15完全贯穿并固定于一起，从而能够使得接插端15与电路壳体30之间接插更加牢固。
进一步地，如上述实施例中所述，在保护套管16成型时，同时与该保护套管16一体成型有设置于靠近接插端15一侧的壳体护套17。其中，该壳体护套17与电路壳体30分别成型，并使得该壳体护套17的内侧壁的形状与电路壳体30的外侧壁匹配，进而在二者分别成型完成之后，将壳体护套17以套装的方式包覆于电路壳体30的外围。此处需要说明的是，由于在壳体护套17成型时的环境温度较高，而高温环境可能会对电路壳体30所容纳的控制电路60或电池70造成一定的损伤，因此，在成型阶段，将电路壳体30和壳体护套17分别成型，然后再套装在一起，从而能够避免壳体护套17在成型时，高温对控制电路60或电池70所带来的损伤，从而降低成型对控制电路60或电池70所带来的不利影响。进一步地，壳体护套17可以为一端开口的袋状结构，以使得电路壳体30经由壳体护套17的开口端进入壳体护套17的内部。
本实施方式中，壳体护套17在与保护套管16一体成型而形成之后，可以通过从开口端对壳体护套17进行翻卷而将其从模具上取下；在对壳体护套17进行外观检查以及丝印等表面处理时，可进一步将壳体护套17通过开口而套设在预设结构上进行操作，并在操作完成后，进一步通过从开口处对壳体护套17进行翻卷而将其从该预设结构上取下；在检查及处理等操作完成后，可进一步通过开口而将壳体护套17套装在电路壳体30的外围。上述操作中，在将壳体护套17取下并不限定于上述翻卷的方式，还可通过充气等方式，此处不做具体限定。
具体地，壳体护套17的开口端为壳体护套17背离保护套管16的一端，从而该电路壳体30从壳体护套17远离保护套管16的一端进入壳体护套17的内部，以为该壳体护套17所包覆。
图11是图2中E部分的局部放大图。结合图1和图11，在一些实施例中，壳体护套17的开口端设置有向内凸出的环状凸缘171。进一步地，电路壳体30远离耳挂10的端部呈阶梯状设置，进而形成环形台面37。当壳体护套17包覆于电路壳体30的外围时，环状凸缘171抵接于环形台面37上。在一些实施例中，环状凸缘171由壳体护套17的开口端的内壁面朝向壳体护套17内部凸出一定的厚度形成，并包括一朝向耳挂10的凸缘面172。其中，环形台面37与凸缘面172相对，并朝向电路壳体30背离耳挂10的方向。该环状凸缘171的凸缘面172的高度不大于环形台面37的高度，从而使得在环状凸缘171的凸缘面172与环形台面37相抵接时，壳体护套17的内壁面能够与电路壳体30的侧壁面充分抵接，从而使得壳体护套17能够紧密包覆于电路壳体30的外围。在一些实施例中，在环状凸缘171与环形台面37上的接合区域内可进一步施加有密封胶。具体地，在 对壳体护套17进行套装时，可以在环形台面37上涂覆密封胶，从而将壳体护套17与电路壳体30进行密封连接。
在一些实施例中，电路壳体30上还设置有定位块38，该定位块38设置于环形台面37上，并沿电路壳体30背离耳挂10的方向延伸。具体地，该定位块38可设置于电路壳体30的辅侧壁34上，且该定位块38在辅侧壁34上凸出的厚度与环形台面37的高度一致。其中，定位块38的数量可以根据需求设置一个或者多个。在一些实施例中，壳体护套17的环状凸缘171处设置有与定位块38对应的定位槽173，从而在壳体护套17包覆于电路壳体30的外围时，该定位槽173覆盖在至少部分定位块38上。通过这种方式，在对壳体护套17进行套装时，可以根据定位块38和定位槽173的位置对壳体护套17进行定位，以方便操作人员快速、准确得安装。当然，在其它实施方式中，也可以根据实际需求不设置定位块。
图11是本申请一些实施例提供的MP3播放器中电路壳体的截面图；图12是图11中F部分的局部放大图。
结合图2、图11，在一些实施例中，电路壳体30包括彼此扣合的两个子壳体，分别为第一子壳体301和第二子壳体302。具体地，两个子壳体可以沿电路壳体30的中线而对称扣合，或者也可以根据实际需求通过其他方式进行扣合。另外，用于容纳控制电路60的电路壳体30的两个子壳体的扣合方式可以与用于容纳电池70的电路壳体30的两个子壳体的扣合方式可以相同，也可以不同。
在一些实施例中，电路壳体30的环形台面37可形成于第一子壳体301上，两个子壳体在环形台面37朝向耳挂10的一侧接合，从而使得壳体护套17能够对两个子壳体的接合缝进行全覆盖，从而能够在一定程度上对电路壳体30的内部空间进行密封，以提高MP3播放器的防水效果。
在一些实施例中，电路壳体30的环形台面37还可以由两个子壳体共同形成，从而使得二者至少部分部位在环形台面37背离耳挂10的一侧结合。此时，壳体护套17不能够覆盖两个子壳体的位于环形台面37背离耳挂10一侧的接合缝。本应用场景中，可以进一步通过其它方式对该部分的接合缝进行覆盖。
结合图2和图12，在一些实施例中，两个子壳体彼此对接的接合面为互相契合的阶梯形状。具体地，第一子壳体301的朝向第二子壳体302的端面为阶梯状的第一阶梯面3011，第二子壳体302的朝向第一子壳体301的端面为阶梯状的第二阶梯面3021。第一阶梯面3011和第二阶梯面3021的形状及尺寸均一致，从而能够互相配合抵接在一起。电路壳体30的两个子壳体互相抵接的结合面成阶梯状而不在同一平面上，从而能够阻挡电路壳体30外部的液体由电路壳体30的外围进入电路壳体30的内部，进而进一步提高MP3播放器的防水效果，以对电路壳体30内部的控制电路60或者电池70等进行保护。
在一些实施例中，在第二子壳体302的第二阶梯面3021上设置有朝向第一子壳体30a的安装卡勾3022，对应地，第一子壳体301的内部设置有与该安装卡勾3022匹配的安装勾槽3012。在对第一子壳体301和第二子壳体302进行安装时，安装卡勾3022能够在外部推力越过安装勾槽 3012的外侧壁而进入该安装勾槽3012，并使得安装卡勾3022的勾部勾接安装勾槽3012的内侧壁，从而实现第一子壳体301与第二子壳体302的扣合。
图13是本申请一些实施例提供的MP3播放器中电路壳体与后挂的局部结构爆炸图；图14是本申请一些实施例提供的MP3播放器中电路壳体与后挂的局部结构截面图；图15是本申请一些实施例提供的MP3播放器中后挂的局部结构示意图。
结合图2、图13、图14和图15，在一些实施例中，电路壳体30在远离耳挂10的一端进一步设置有接插端3a，后挂40包括弹性金属丝41以及设置于弹性金属丝41的两端的接插端42，其中接插端3a与接插端42彼此接插固定。
其中，由于MP3播放器的耳机芯50分别为左右两个，对应的机芯壳体20、耳挂10以及电路壳体30也设置为左右两个，后挂40通过分别与两个电路壳体30接插固定的方式将位于两侧的机芯壳体20、耳挂10以及电路壳体30连接在一起，并在用户佩戴时悬挂设置于用户头部后侧。接插端42可以通过注塑的方式形成在弹性金属丝41的两端。具体地，接插端42可以由塑胶等材料制成。
在一些实施例中，接插端42设置有接插孔421，该接插端3a至少部分插入至接插孔421内，本实施方式中，接插端3a可具体设置在环形台面37背离耳挂10的一侧。接插端3a与接插孔421之间的接插方式和接插端15与接插孔31之间的接插方式可以相同，也可以不同。
在一些实施例中，在接插端3a的相对两侧分别设置有与接插端3a相对于接插孔421的插入方向垂直设置的开槽3a1。两个开槽3a1可间隔且对称设置于接插端3a的两侧。进一步地，该两个开槽3a1可均在垂直于插入方向上与接插端3a的对应的侧壁连通。
在一些实施例中，接插端42的第一侧壁422上设置有与两个开槽3a1位置对应的通孔423。其中，接插端42包括用于定义接插孔421的环绕设置的侧壁，接插端42的第一侧壁422可以是在接插端3a与接插端42接插固定时，接插端42的能够与开槽3a1的延伸方向相交的侧壁。
MP3播放器进一步包括固定件88，固定件88包括两条平行设置的插脚881和用于连接插脚881的连接部882。本实施方式中，两条插脚881平行设置，连接部882可垂直连接设置于两条插脚881的同一侧，从而形成与固定件81形状相似的U型的固定件88。需要指出的是，固定件88可与固定件81的形状相似，但是具体的尺寸参数可以适应于周边结构而不同，本实施方式中，插脚881的长度大于插脚811的长度，连接部812长度小于连接部882的长度等，此处不做具体限定。在一些实施例中，插脚881可从接插端42的外侧经通孔423插入至开槽3a1，而将连接部882阻挡于接插端3a的外侧，进而实现接插端42与接插端3a的接插固定。
通过上述方式，MP3播放器的固定件88包括两条平行设置的插脚881和用于连接插脚881的连接部882，以使得固定件88在一定跨度上对接插端3a和接插端42进行接插固定，从而使得电路壳体30与后挂40之间的固定更加稳定、牢靠；而且固定件88结构简单，插入和取出方便，从而使得接插端3a与接插端42之间的接插固定为可拆卸，且能够使得MP3播放器的装配更加方便。在一些实施例中，接插端42的与第一侧壁422相对的第二侧壁424上进一步设置有与通孔423相对 的通孔425，插脚881进一步经开槽3a1插入至通孔425内。
在本实施方式中，插脚881经通孔423插入至开槽3a1内，并进一步经开槽3a1插入至通孔425内，也就是说插脚881能够将后挂40的接插端42的相对两侧壁以及接插端3a完全贯穿并连接于一起，从而能够使得电路壳体30与后挂40之间接插更加牢固。
在一些实施例中，接插端3a沿接插端3a相对于接插孔421的插入方向进一步划分为第一接插段3a2和第二接插段3a3。其中，接插端3a可设置在电路壳体30的端部的靠近一辅侧壁34一侧，该辅侧壁34具体可以是与上述实施方式中的定位块38所在的辅侧壁34相对的另一辅侧壁34。
在一些实施例中，第一接插段3a2和第二接插段3a3可在靠近定位块38的一侧沿接插端3a相对于接插孔421的插入方向而呈阶梯状设置，从而使得在垂直于插入方向的截面方向上，第一接插段3a2的截面大于第二接插段3a3的截面。
相应地，接插孔421沿接插端3a相对于接插孔421的插入方向进一步划分为形状分别与第一接插段3a2和第二接插段3a3相匹配的第一孔段4211和第二孔段4212，从而使得在接插端3a插入至接插孔421内时，第一接插段3a2和第二接插段3a3分别插置于第一孔段4211和第二孔段内4212。
在一些实施例中，开槽3a1可设置于第一接插段3a2上，具体地，开槽3a1可沿接插端3a到定位块38的方向，即电路壳体30的两个辅侧壁34相对的方向而延伸设置，从而贯通第一接插段3a2的与电路壳体30的主侧壁33垂直的两侧壁，且进一步沿垂直插入方向贯穿第一接插段3a2的平行于电路壳体30的主侧壁33的两侧壁。
其中，接插端42上设置的通孔423可与开槽3a1的朝向定位块38的一侧对应，而通孔425则可与开槽3a1的远离定位块38的一侧对应。
在一些实施例中，在一实施方式中，第一接插段3a2和第二接插段3a3的顶侧彼此共面设置。其中，第一接插段3a2和第二接插段3a3的顶侧是指在用户正常佩戴MP3播放器时，第一接插段3a2和第二接插段3a3的朝向头部顶侧的一侧，也即与第一接插段3a2和第二接插段3a3所形成的阶梯状相背的一侧。
在一些实施例中，第一接插段3a2和第二接插段3a3的顶侧共面且形成有用于容纳导线的走线槽3a4。该走线槽3a4可沿接插端3a与接插孔421的接插方向延伸，可用于容纳经过后挂40而连通控制电路60和电池70的导线。本实施方式中，可先将接插端3a插置于接插孔421内，然后从第一接插段3a2的朝向定位块38的一侧插入开槽3a1。具体地，本实施方式中，接插端3a设置于电路壳体30的朝向后挂40的端面的远离定位块38的一侧，因此，在接插端3a朝向定位块38的一侧还具有一定的空间，从而在对电路壳体30以及后挂40进行插接安装时，可以将固定件88从接插端3a2的底侧，即第一接插段3a2朝向定位块38的一侧由通孔423插入至开槽3a1并进而插入至通孔425内，以实现电路壳体30与后挂40的插接固定。通过这种方式，能够将固定件88完全隐藏于电路壳体30与后挂40所形成的内部空间当中而不外露，从而无需占用额外的空间。
在一些实施例中，后挂40还包括注塑于弹性金属丝41以及接插端42外围的第二保护套 管43以及与第二保护套管43一体成型的端部保护盖44。其中，第二保护套管43以及端部保护盖44的材质均可以与保护套管16及壳体护套17的材质相同，例如均可以为具有一定弹性的软质材料，例如软质的硅胶、橡胶等。
端部保护盖44具体可形成于弹性金属丝41的两端，可以与位于弹性金属丝41的两端的接插端42一体成型于该接插端42的外围。此处需要说明的是，壳体护套17仅由电路壳体30的朝向耳挂10的一端包裹至电路壳体30的环形台面37处，因此，电路壳体30的环形台面37的朝向后挂40的部分则外露于壳体护套17的外围。进一步地，本实施方式中，端部保护盖44以及接插端42共同形成的内侧壁的形状与该电路壳体30所外露的端部的形状匹配，以进一步覆盖于该外露的电路壳体30的端部的外围，且该端部保护盖44的朝向电路壳体30的端面与壳体护套17的朝向后挂40的端面弹性抵接，以进一步提供密封。
需要注意的是，以上对MP3播放器的描述仅仅是具体的示例，不应被视为是唯一可行的实施方案。显然，对于本领域的专业人员来说，在了解MP3播放器的基本原理后，可能在不背离这一原理的情况下，对实施MP3播放器的具体方式与步骤进行形式和细节上的各种修正和改变，但是这些修正和改变仍在以上描述的范围之内。例如，插接孔22的形状可以为圆环状，插接孔22的形状还可以为不规则的圆环状(插接孔22的内壁为齿状)。诸如此类的变形，均在本申请的保护范围之内。
图16是本申请一些实施例提供的扬声器的应用场景及结构示意图。请参照图16和图2，图16中的外壳1604相当于图2中机芯壳体20，图16中的驱动装置1601相当于图2中的耳机芯50。下面仅以骨传导扬声器作为示例对扬声器装置的应用场景及结构进行阐述。在一些实施例中，如图16所示，骨传导扬声器可以包括驱动装置1601、传动组件1602、面板1603(面板1603也可以称为外壳面板，为机芯壳体20上面向人体一侧的面板)、以及外壳1604等。在一些实施例中，外壳1604可以包括外壳背面和外壳侧面，通过外壳背面通过外壳侧面与面板1603相连。驱动装置1601可以通过传动组件1602将振动信号传送至面板1603和/或外壳1604，从而通过与面板1603或外壳1604与人体皮肤的接触，将声音传送至人体。在一些实施例中，骨传导扬声器的面板1603和/或外壳1604可以在耳屏处与人体皮肤接触，从而将声音传递至人体。在一些实施例中，面板1603和/或外壳1604也可以在耳廓后侧与人体皮肤接触。
在一些实施例中，驱动装置1601产生的驱动力所在直线B(或者说驱动装置的振动方向)，与面板1603的法线A具有一个夹角θ。或者说，直线B与直线A不平行。面板上具有与使用者身体，如人体皮肤，接触或抵靠的区域。应当理解为，当面板上覆盖有其他材料(如硅胶等软性材料)以增强用户佩戴舒适感时，面板与使用者身体的关系则不为直接接触，而是相互抵靠。在一些实施例中，当骨传导扬声器佩戴在使用者身体上后，面板的全部区域与使用者身体接触或抵靠。在一些实施例中，当骨传导扬声器佩戴在使用者身体上后，面板的部分区域与使用者身体接触或抵靠。在一些实施例中，面板上用于与使用者身体接触或抵靠的区域可以占整个面板面积的50％以上，更优选的，可以占面板面积的60％以上。一般来说，面板上与使用者身体接触或抵靠的区域可以是平面 或者曲面。
在一些实施例中，当面板上用于与使用者身体接触或抵靠的区域为平面时，其法线满足法线的一般定义，即为垂直于该平面的虚线。在一些实施例中，当面板上用于与使用者身体接触或抵靠的区域为曲面时，其法线为该区域的平均法线。其中，平均法线的定义如下：
Figure PCTCN2019102402-appb-000001
其中，
Figure PCTCN2019102402-appb-000002
为平均法线；
Figure PCTCN2019102402-appb-000003
为曲面上任意一点的法线，ds为面元。
更进一步地，所述曲面为接近平面的准平面，即所述曲面上至少50％区域内任意一点的法线与其平均法线的夹角小于设定阈值的面。在一些实施例中，所述设定阈值小于10°。在一些实施例中，所述设定阈值可以进一步小于5°。
在一些实施例中，所述驱动力所在直线B与面板1603上用于与使用者身体接触或抵靠的区域的法线A’具有所述夹角θ。所述夹角θ的数值范围可以为0＜θ＜180°，进一步其数值范围可以为0＜θ＜180°且不等于90°。在一些实施例中，设定直线B具有指向骨传导扬声器外的正方向，设定面板1603的法线A(或者面板1603与人体皮肤接触面的法线A’)也具有指向骨传导扬声器外的正方向，则法线A或A’与直线B在其正方向上形成的夹角θ为锐角，即0＜θ＜90°。关于法线A与法线A’的更多描述，可以在图18及其相关描述中找到，在此不做赘述。
图17是本申请一些实施例提供的一种夹角方向的示意图。如图17所示，在一些实施例中，驱动装置产生的驱动力在XOY平面坐标系的第一象限和/或第三象限内具有分量。其中，XOY平面坐标系为一个参考坐标系，其原点O位于骨传导扬声器佩戴在人体上后，面板和/或外壳与人体的接触面上，X轴与人体冠状轴平行，Y轴与人体矢状轴平行，且X轴正方向朝向人体外侧，Y轴正方向朝向人体前方。象限应当被理解为平面直角坐标系中的横轴(如X轴)和纵轴(如Y轴)所划分的四个区域，每一个区域叫做一个象限。象限以原点为中心，X、Y轴为分界线。右上的(X轴的正半轴与Y轴的正半轴围成的区域)称为第一象限，左上的(X轴的负半轴与Y轴的正半轴围成的区域)称为第二象限，左下的(X轴的负半轴与Y轴的负半轴围成的区域)称为第三象限，右下的(X轴的正半轴与Y轴的负半轴围成的区域)称为第四象限。其中，坐标轴上的点不属于任何象限。应当理解为，本实施例所述驱动力可以直接位于所述XOY平面坐标系的第一象限和/或第三象限中，或者所述驱动力朝向其他方向，但是在所述XOY平面坐标系的第一象限和/或第三象限中的投影或分量不为0，以及在Z轴方向的投影或分量可以为0或不为0。其中，Z轴垂直于所述XOY平面，且经过所述原点O。在一些具体实施例中，驱动力所在直线与面板上与使用者身体接触或抵靠的区域的法线之间的最小夹角θ可以为任意锐角，例如夹角θ的范围优选为5°～80°；更优选为15°～70°；再优选为25°～60°；再优选为25°～50°；再优选为28°～50°；再优选为30°～39°；再优选为31°～38°；更优选为32°～37°；更优先选为33°～36°；更优先选为33°～35.8°；更优先选为33.5°～35°。具体的，夹角θ可以是26°、27°、28°、29°、30°、31°、32°、33°、34°、34.2°、35°、35.8°、36°、37°或38°等，误差控制在0.2度以内。需要说明的是，上述对驱动力方向的说明不应理解为本申请中驱动力 的限制，在其他实施例中，所述驱动力还可以在XOY平面坐标系中的第二、四象限具有分量，甚至所述驱动力还可以位于Y轴上等等。
图18是本申请一些实施例提供的骨传导扬声器作用于人体皮肤、骨骼的结构示意图。
在一些实施例中，驱动力所在的直线与驱动装置振动所在的直线共线或平行。例如，在动圈原理的驱动装置中，驱动力的方向可以与线圈和/或磁路组件的振动方向相同或相反。面板可以为平面，也可以为曲面，或者面板上具有若干凸起或凹槽。在一些实施例中，当骨传导扬声器佩戴在使用者身体上后，面板上与使用者身体接触或抵靠的区域的法线与所述驱动力所在的直线不平行。一般来说，面板上与使用者身体接触或抵靠的区域较为平坦，具体可以是平面，或者曲度变化不大的准平面。当面板上用于与使用者身体接触或抵靠的区域为平面时，其上任意一点的法线均可以作为所述区域的法线，此时，上述面板1603的法线A与面板1603与人体皮肤接触面的法线A’可以为平行或重合。当面板上用于与使用者身体接触面板为非平面时，所述区域的法线可以为其平均法线。关于平均法线的详细定义可以参见图16中的相关描述，在此不再赘述。在其他一些实施例中，当面板上用于与使用者身体接触面板为非平面时，所述区域的法线还可以如下确定，选定面板与人体皮肤接触时的一个区域中的某一点，确定面板在该点处的切平面，再确定过该点且与所述切平面垂直的直线，将该直线作为所述面板的所述法线。当面板上用于与人体皮肤接触面板为非平面时，所选的点不同，面板在该点出的切平面不同，所确定的法线也会有所差异，此时的法线A’与面板的法线A是不平行的。根据本申请一个具体实施例，所述驱动力所在直线(或驱动装置振动所在直线)与所述区域的法线具有夹角θ，所述夹角0＜θ＜180°。在一些实施例中，当指定驱动力所在直线具有经面板(或者面板和/或外壳与人体皮肤接触面)指向骨传导扬声器外的正方向，指定面板(或者面板和/或外壳与人体皮肤接触面)法线具有指向骨传导扬声器外的正方向，这两条直线在正方向上形成的夹角为锐角。
如图18所示，所述骨传导扬声器包括驱动装置(在其他实施例中也可称为换能装置)，传动组件1803，面板1801，以及外壳1802。在一些实施例中，线圈1804与磁路组件1807均为环状结构。在一些实施例中，驱动装置为动圈驱动方式，包括线圈1804及磁路组件1807。
在一些实施例中，线圈1804与磁路组件1807具有相互平行的轴线，线圈1804或磁路组件1807的轴线与线圈1804径向平面和/或磁路组件1807径向平面垂直。在一些实施例中，线圈1804与磁路组件1807具有相同的中心轴线，线圈1804的中心轴线与线圈1804径向平面垂直，且经过线圈1804的几何中心，磁路组件1807的中心轴线与磁路组件1807径向平面垂直，且经过磁路组件1807的几何中心。线圈1804或磁路组件1807的轴线与面板1801的法线具有前述夹角θ。
仅仅作为示例，下面结合图18，阐述驱动力F与皮肤变形S之间的关系。当驱动装置产生的驱动力所在直线与面板1801法线平行时(也就是夹角θ为零)，驱动力与皮肤总形变的关系为：
F ⊥＝S ⊥×E×A/h   (2)
其中，F ⊥为驱动力大小，S ⊥为皮肤在垂直皮肤方向的总形变，E为皮肤的弹性模量，A为面板与皮肤的接触面积，h为皮肤的总厚度(也即面板与骨骼之间的距离)。
当驱动装置的驱动力所在直线与面板上与使用者身体接触或抵靠的区域的法线垂直时(也就是夹角θ为90度)，垂直方向的驱动力与皮肤总形变的关系可以如公式(3)所示：
F //＝S //×G×A/h(3)
其中，F //为驱动力大小，S //为皮肤在平行皮肤方向的总形变，G为皮肤的剪切模量，A为面板与皮肤的接触面积，h为皮肤的总厚度(也即面板与骨骼之间的距离)。
剪切模量G与弹性模量E之间的关系为：
G＝E/2(1+γ)   (4)
其中，γ为皮肤的泊松比0＜γ＜0.5，因而剪切模量G小于弹性模量E，对应在相同的驱动力下皮肤的总形变S //＞S ⊥。通常，皮肤的泊松比接近0.4。
当驱动装置产生驱动力所在直线与面板与使用者身体接触的区域的法线不平行时，水平方向驱动力与垂直方向的驱动力分别表示为以下的公式(5)和公式(6)：
F ⊥＝F×cos(θ)   (5)
F //＝F×sin(θ)   (6)
其中，驱动力F与皮肤变形S之间的关系可由以下公式表示：
Figure PCTCN2019102402-appb-000004
当皮肤的泊松比为0.4时，夹角θ与皮肤总形变之间的关系的详细描述可以参考本申请的其它地方的具体内容。
图19是根据本申请一些实施例提供的骨传导扬声器的夹角-相对位移关系图。如图19所示，夹角θ与皮肤总形变之间的关系为夹角θ越大，相对位移越大，则皮肤总形变S越大。皮肤在垂直皮肤方向形变S ⊥随着夹角θ的变大，相对位移变小，皮肤在垂直皮肤方向形变S ⊥变小；并且在夹角θ接近90度时，皮肤在垂直皮肤方向形变S ⊥逐渐趋向于0。
骨传导扬声器在低频部分的音量与皮肤总变形S正相关。S越大，骨传导低频的音量越大。骨传导扬声器在高频部分的音量与皮肤在垂直皮肤方向形变S ⊥正相关。S ⊥越大，骨传导低频的音量越大。
当皮肤的泊松比为0.4时，夹角θ与皮肤总形变S，皮肤在垂直皮肤方向形变S ⊥之间的关系的详细描述可以在图19中找到。如图19所示，夹角θ与皮肤总形变S之间的关系为夹角θ越大，皮肤总形变S越大，对应骨传导扬声器的低频部分音量越大。如图19所示，夹角θ与皮肤在垂直皮肤方向形变S⊥之间的关系为夹角θ越大，皮肤在垂直皮肤方向形变S⊥越小，对应骨传导扬声器的高频部分音量越小。
通过方程(7)以及图19的曲线可以看出，随着夹角θ的增大，皮肤总形变S增大的速度与皮肤在垂直皮肤方向形变S ⊥减小的速度不同。皮肤总形变S增大的速度先变快后变慢，皮肤在垂直皮肤方向形变S ⊥减小的速度越来越快。为平衡骨传导扬声器低频与高频的音量，夹角θ要在一个合适的大小。例如θ的范围为5°～80°，或者为15°～70°，或者为25°～50°，或者为25°～35°，或者为 25°～30°等等。
图20是根据本申请提供的不同夹角θ时骨传导扬声器的频率响应曲线低频段部分的示意图。如图20所示，面板与皮肤接触，将振动传递到皮肤。在这个过程中，皮肤也会影响骨传导扬声器的振动，从而影响到骨传导扬声器的频率响应曲线。从上面的分析中，我们发现夹角度越大，相同的驱动力下皮肤的总形变越大，而对应骨传导扬声器来说，相当于皮肤相对其面板部分的弹性减小。进一步地可以理解为，在驱动装置的驱动力所在直线与面板上与使用者身体接触或抵靠区域的法线形成一定夹角θ时，尤其是当夹角θ加大时，可以将频率响应曲线中的低频区域的谐振峰调节至更低频的区域，使低频下潜更深，低频增多。相对于其他提高声音中低频成分的技术手段，如在骨传导扬声器中增设传振片，设置所述夹角能够在提高低频能量的同时有效抑制振动感的增加，进而使振动感相对减少，使得骨传导扬声器低频灵敏度显著提高，提高音质和人体的体验感。应当注意的是，在一些实施例中，低频增多，振动感少可以表现为夹角θ在(0，90°)范围内增大时，振动或声音信号中的低频范围的能量增加了，同时振动感也增加了，但是低频范围的能量增加的程度比振动感增加的程度更大，因此，在相对效果上，振动感相对减小了。从图20可以看出，夹角较大时，低频区的谐振峰出现在更低频段处，可以变相地延长频率曲率平坦的部分，从而提高扬声器的音质。
需要注意的是，以上对骨传导扬声器的描述仅仅是具体的示例，不应被视为是唯一可行的实施方案。显然，对于本领域的专业人员来说，在了解骨传导扬声器的基本原理后，可能在不背离这一原理的情况下，对实施骨传导扬声器的具体方式与步骤进行形式和细节上的各种修正和改变，但是这些修正和改变仍在以上描述的范围之内。例如，驱动力所在直线与面板上用于与使用者身体接触或抵靠的区域的法线之间的最小夹角θ可以为任意锐角，此处的锐角不局限于上述的5°～80°，夹角θ可以小于5°，例如1°、2°、3°、4°等。在另一些实施例中，夹角θ可以大于80°且小于90°，例如81°、82°、85°等。在一些实施例中，夹角θ的具体数值可以不为整数(例如81.3°、81.38°)。诸如此类的变形，均在本申请的保护范围之内。
图21是根据本申请的一些实施例所示的骨传导扬声器的纵截面示意图。需要注意的是，图21中骨传导扬声器200相当于图2中的机芯壳体20和耳机芯50所示的部分，其中壳体220与机芯壳体20相对应，壳体220内部的多个元件与耳机芯50相对应。如图21所示，在一些实施例中，骨传导扬声器200可以包括磁路组件210、线圈212、传振片214、连接件216以及壳体220。磁路组件210可以包括第一磁性元件202、第一导磁元件204和第二导磁元件206。
在一些实施例中，壳体220可以包括外壳面板222、外壳背面224和外壳侧面226。外壳背面224位于与外壳面板222相对的一面，并分别设置在外壳侧面226的两端面上。外壳面板222、外壳背面224和外壳侧面226形成具有一定容置空间的整体结构。在一些实施例中，磁路组件210、线圈212和传振片214固定在壳体220内部。在一些实施例中，骨传导扬声器200还可以包括外壳支架228，传振片214可以通过外壳支架228与壳体220连接，线圈212可以固定在外壳支架228上，并通过外壳支架228带动外壳220振动。在一些实施例中，外壳支架228可以是壳体220的一 部分，也可以是单独的组件，直接或者间接连接于壳体220的内部。在一些实施例中，外壳支架228可以固定在外壳侧面226的内表面上。在一些实施例中，外壳支架228可以通过胶水粘贴在壳体220上，也可以通过冲压、注塑、卡接、铆接、螺纹连接或焊接固定在壳体220上。
在一些实施例中，可以通过设计外壳面板222、外壳背面224和外壳侧面226的连接方式确保壳体220具有较大的刚度。例如，外壳面板222、外壳背面224和外壳侧面226可以是一体成型。又例如，外壳背面224和外壳侧面226可以是一体成型结构。外壳面板222和外壳侧面226可以通过胶水直接粘贴固定，或是通过卡接、焊接或螺纹连接的方式进行固定。所述胶水可以是粘性强、硬度较大的胶水。再例如，外壳面板222和外壳侧面226可以是一体成型结构，外壳背面224和外壳侧面226之间可以通过胶水直接粘贴固定，或是通过卡接、焊接或螺纹连接的方式进行固定。在一些实施例中，外壳面板222、外壳背面224和外壳侧面226都是独立的部件，三者之间可以通过胶水、卡接、焊接或螺纹连接方式中的一种或任意几种的组合进行固定连接。例如，外壳面板222和外壳侧面226之间通过胶水连接，外壳背面224和外壳侧面226之间通过卡接、焊接或螺纹连接进行连接。或是外壳背面224和外壳侧面226之间通过胶水连接，外壳面板222和外壳侧面226之间通过卡接、焊接或螺纹连接进行连接。
在不同的应用场景中，本申请中所描述的壳体可以通过不同的装配方式制成。例如，如本申请中其他地方的描述，壳体可以是一体成型的方式，也可以是分体组合的方式，或者两者相结合的方式。在分体组合的方式中，不同分体之间可以采用胶水粘贴固定，或是通过卡接、焊接或螺纹连接的方式进行固定。具体地，为了更好地理解本申请中骨传导耳机的壳体的装配方式，图22-24描述了几种壳体的装配方式的示例。
如图22所示，骨传导扬声器主要包括磁路组件2210和壳体。在一些实施例中，磁路组件2210可以包括第一磁性元件2202、第一导磁元件2204和第二导磁元件2206。壳体可以包括外壳面板2222，外壳背面2224和外壳侧面2226。外壳侧面2226和外壳背面2224由一体成型的方式制成，外壳面板2222通过分件组合的方式连接到外壳侧面2226的一端。所述分件组合的方式包括使用胶水粘结固定，或是通过卡接、焊接或螺纹连接的方式将外壳面板2222固定在外壳侧面2226的一端。外壳面板2222和外壳侧面2226(或者外壳背面2224)可以采用不同、相同或者部分相同的材料制成。在一些实施例中，外壳面板2222和外壳侧面2226采用相同的材料制成，且所述相同材料的杨氏模量大于2000MPa。更优选地，所述相同材料的杨氏模量大于4000MPa，更优选地，所述相同材料的杨氏模量大于6000MPa，更优选地，壳体220材料的杨氏模量大于8000MPa，更优选地，所述相同材料的杨氏模量大于12000MPa，更优选地，所述相同材料的杨氏模量大于15000MPa，进一步优选地，所述相同材料的杨氏模量大于18000MPa。在一些实施例中，外壳面板2222和外壳侧面2226采用不同的材料制成，所述不同材料的杨氏模量都大于4000MPa。更优选地，所述不同材料的杨氏模量都大于6000MPa，更优选地，所述不同材料的杨氏模量都大于8000MPa，更优选地，所述不同材料的杨氏模量都大于12000MPa，更优选地，所述不同材料的杨氏模量都大于15000MPa，进一步优选地，所述不同材料的杨氏模量都大于18000MPa。在一些实施例中，外壳面板2222 和/或外壳侧面2226的材料包括但不限于丙烯腈-丁二烯-苯乙烯共聚物(AcrYlonitrile butadiene stYrene，ABS)、聚苯乙烯(PolYstYrene，PS)、高冲击聚苯乙烯(High impact polYstYrene，HIPS)、聚丙烯(PolYpropYlene，PP)、聚对苯二甲酸乙二酯(PolYethYlene terephthalate，PET)、聚酯(PolYester，PES)、聚碳酸酯(PolYcarbonate，PC)、聚酰胺(PolYamides，PA)、聚氯乙烯(PolYvinYlchloride，PVC)、聚氨酯(PolYurethanes，PU)、聚二氯乙烯(PolYvinYlidenechloride)、聚乙烯(PolYethYlene，PE)、聚甲基丙烯酸甲酯(PolYmethYlmethacrYlate，PMMA)、聚醚醚酮(PolYetheretherketone，PEEK)、酚醛树脂(Phenolics，PF)、尿素甲醛树脂(Urea-formaldehYde，UF)、三聚氰胺-甲醛树脂(Melamine formaldehYde，MF)以及一些金属、合金(如铝合金、铬钼钢、钪合金、镁合金、钛合金、镁锂合金、镍合金等)、玻璃纤维或碳纤维中的任意材料或上述任意材料的组合。在一些实施例中，外壳面板2222的材料为玻璃纤维、碳纤维与聚碳酸酯(PolYcarbonate，PC)、聚酰胺(PolYamides，PA)等材料的任意组合。在一些实施例中，外壳面板2222和/或外壳侧面2226的材料可以是碳纤维和聚碳酸酯(PolYcarbonate，PC)按照一定比例混合制成。在一些实施例中，外壳面板2222和/或外壳侧面2226的材料可以是碳纤维、玻璃纤维和聚碳酸酯(PolYcarbonate，PC)按照一定比例混合制成。在一些实施例中，外壳面板2222和/或外壳侧面2226的材料可以是玻璃纤维和聚碳酸酯(PolYcarbonate，PC)按照一定比例混合制成，也可以使玻璃纤维和聚酰胺(PolYamides，PA)按照一定比例混合制成。
在一些实施例中，外壳面板2222、外壳背面2224和外壳侧面2226形成具有一定容置空间的整体结构。在所述整体结构内，传振片2214通过连接件2216与磁路组件2210连接。磁路组件2210的两侧分别连接第一导磁元件2204和第二导磁元件2206。传振片2214通过外壳支架2228固定在所述整体结构的内部。在一些实施例中，外壳侧面2226上具有用于支撑外壳支架2228的台阶结构。在外壳支架2228固定于外壳侧面2226后，外壳面板2222可以同时固定在外壳支架2228和外壳侧面2226上，或者单独固定在外壳支架2228或外壳侧面2226上。在这种情况下，可选地，外壳侧面2226和外壳支架2228可以一体成型。在一些实施例中，外壳支架2228可以直接固定在外壳面板2222上(例如，通过胶水粘贴、卡接、焊接或螺纹连接等方式)。固定后的外壳面板2222和外壳支架2228再与外壳侧面固定(例如，通过胶水粘贴、卡接、焊接或螺纹连接等方式)。在这种情况下，可选地，外壳支架2228和外壳面板2222可以一体成型。
在另一具体的实施例中，如图23所示，骨传导扬声器主要包括磁路组件2240和壳体。其中，磁路组件2240可以包括第一磁性元件2232、第一导磁元件2234和第二导磁元件2236。在整体结构内，传振片2244通过连接件2246与磁路组件2240连接。该实施例与图22提供的实施例不同之处在于，外壳支架2258和外壳侧面2256一体成型。外壳面板2252固定在外壳侧面2256上与外壳支架2258连接的一侧(例如，通过胶水粘贴、卡接、焊接或螺纹连接等方式)，外壳背面2254固定在外壳侧面2256的另一侧(例如，通过胶水粘贴、卡接、焊接或螺纹连接等方式)。在这种情况下，可选地，外壳支架2258和外壳侧面2256是分体组合的结构，并且外壳面板2252，外壳背面2254，外壳支架2258和外壳侧面2256之间都是通过胶水粘贴、卡接、焊接或螺纹连接的方式进行 固定连接。
在另一具体的实施例中，如图24所示，该实施例中的骨传导扬声器主要包括磁路组件2270和壳体。其中，磁路组件2270可以包括第一磁性元件2262、第一导磁元件2264和第二导磁元件2266。在整体结构内，传振片2274通过连接件2276与磁路组件2270连接。该实施例与图23提供的实施例的不同之处在于，外壳面板2282和外壳侧面2286一体成型。外壳背面2284固定在外壳侧面2286上相对于外壳面板2282的一侧(例如，通过胶水粘贴、卡接、焊接或螺纹连接等方式)。外壳支架2288通过胶水粘贴、卡接、焊接或螺纹连接的方式固定在外壳面板2282和/或外壳侧面2286上。在这种情况下，可选地，外壳支架2288，外壳面板2282和外壳侧面2286是一体成型的结构。
图25是根据本申请一些实施例所示的一种骨传导扬声器的壳体结构示意图。如图25所示，壳体700可以包括外壳面板710、外壳背面720和外壳侧面730。外壳面板710与人体接触，将骨传导扬声器的振动传递给人体的听觉神经。在一些实施例中，当壳体700的整体刚度较大时，在一定的频率范围内，外壳面板710和外壳背面720的振动幅度和相位保持相同或基本相同(外壳侧面730不压缩空气因而不产生漏音)，使得外壳面板710产生的第一漏音信号和外壳背面720产生的第二漏音信号能够相互叠加。所述叠加可以减小第一漏音声波或第二漏音声波的幅值，从而达到降低壳体700漏音的目的。在一些实施例中，所述的一定频率范围至少包括频率大于500Hz的部分。优选地，所述的一定频率范围至少包括频率大于600Hz的部分。优选地，所述的一定频率范围至少包括频率大于800Hz的部分。优选地，所述的一定频率范围至少包括频率大于1000Hz的部分。优选地，所述的一定频率范围至少包括频率大于2000Hz的部分。更优选地，所述的一定频率范围至少包括频率大于5000Hz的部分。更优选地，所述的一定频率范围至少包括频率大于8000Hz的部分。进一步优选地，所述的一定频率范围至少包括频率大于10000Hz的部分。
在一些实施例中，骨传导扬声器的壳体的刚度会影响壳体上不同部位(例如，外壳面板、外壳背面和/或外壳侧面)的振动幅度和相位，从而影响骨传导扬声器的漏音。在一些实施例中，当骨传导扬声器的壳体具有比较大的刚度时，外壳面板和外壳背面能够在较高的频率下保持相同或者基本相同的振动幅度和相位，从而显著减小骨传导耳机的漏音。
在一些实施例中，较高的频率可以包括不小于1000Hz的频率，例如，1000Hz-2000Hz之间的频率，1100Hz-2000Hz之间的频率，1300Hz-2000Hz之间的频率，1500Hz-2000Hz之间的频率，1700Hz-2000Hz之间的频率，1900Hz-2000Hz之间的频率。优选地，这里所说的较高的频率可以包括不小于2000Hz的频率，例如，2000Hz-3000Hz之间的频率，2100Hz-3000Hz之间的频率，2300Hz-3000Hz之间的频率，2500Hz-3000Hz之间的频率，2700Hz-3000Hz之间的频率，或者2900Hz-3000Hz之间的频率。优选地，较高的频率可以包括不小于4000Hz的频率，例如，4000Hz-5000Hz之间的频率，4100Hz-5000Hz之间的频率，4300Hz-5000Hz之间的频率，4500Hz-5000Hz之间的频率，4700Hz-5000Hz之间的频率，或者4900Hz-5000Hz之间的频率。更优选地，较高的频率可以包括不小于6000Hz的频率，例如，6000Hz-8000Hz之间的频率，6100Hz-8000Hz之间的频率，6300Hz-8000Hz 之间的频率，6500Hz-8000Hz之间的频率，7000Hz-8000Hz之间的频率，7500Hz-8000Hz之间的频率，或者7900Hz-8000Hz之间的频率。进一步优选地，较高的频率可以包括不小于8000Hz的频率，例如，8000Hz-12000Hz之间的频率，8100Hz-12000Hz之间的频率，8300Hz-12000Hz之间的频率，8500Hz-12000Hz之间的频率，9000Hz-12000Hz之间的频率，10000Hz-12000Hz之间的频率，或者11000Hz-12000Hz之间的频率。
外壳面板和外壳背面保持相同或者基本相同的振动幅度是指所述外壳面板和外壳背面的振动幅度的比值在一定的范围之内。例如，外壳面板和外壳背面的振动幅度的比值在0.3到3之间，优选地，外壳面板和外壳背面的振动幅度的比值在0.4到2.5之间，优选地，外壳面板和外壳背面的振动幅度的比值在0.5到1.5之间，更优选地，外壳面板和外壳背面的振动幅度的比值在0.6到1.4之间，更优选地，外壳面板和外壳背面的振动幅度的比值在0.7到1.2之间，更优选地，外壳面板和外壳背面的振动幅度的比值在0.75到1.15之间，更优选地，外壳面板和外壳背面的振动幅度的比值在0.8到1.1之间，更优选地，外壳面板和外壳背面的振动幅度的比值在0.85到1.1之间，进一步优选地，外壳面板和外壳背面的振动幅度的比值在0.9到1.05之间。在一些实施例中，外壳面板和外壳背面的振动可以用其他能够表征其振动幅度的物理量来表示。例如，可以分别用空间中一点处由外壳面板和外壳背面产生的声压来表征外壳面板和外壳背面的振动幅度。
外壳面板和外壳背面保持相同或者基本相同的振动相位是指所述外壳面板和外壳背面的振动相位的差值在一定的范围之内。例如，外壳面板和外壳背面的振动相位的差值在-90°到90°之间，优选地，外壳面板和外壳背面的振动相位的差值在-80°到80°之间，优选地，外壳面板和外壳背面的振动相位的差值在-60°到60°之间，优选地，外壳面板和外壳背面的振动相位的差值在-45°到45°之间，更优选地，外壳面板和外壳背面的振动相位的差值在-30°到30°之间，更优选地，外壳面板和外壳背面的振动相位的差值在-20°到20°之间，更优选地，外壳面板和外壳背面的振动相位的差值在-15°到15°之间，更优选地，外壳面板和外壳背面的振动相位的差值在-12°到12°之间，更优选地，外壳面板和外壳背面的振动相位的差值在-10°到10°之间，更优选地，外壳面板和外壳背面的振动相位的差值在-8°到8°之间，更优选地，外壳面板和外壳背面的振动相位的差值在-6°到6°之间，更优选地，外壳面板和外壳背面的振动相位的差值在-5°到5°之间，更优选地，外壳面板和外壳背面的振动相位的差值在-4°到4°之间，更优选地，外壳面板和外壳背面的振动相位的差值在-3°到3°之间，更优选地，外壳面板和外壳背面的振动相位的差值在-2°到2°之间，更优选地，外壳面板和外壳背面的振动相位的差值在-1°到1°之间，进一步优选地，外壳面板和外壳背面的振动相位的差值为0°。
需要注意的是，以上对骨传导扬声器的描述仅仅是具体的示例，不应被视为是唯一可行的实施方案。显然，对于本领域的专业人员来说，在了解骨传导扬声器的基本原理后，可能在不背离这一原理的情况下，对实施骨传导扬声器的具体方式与步骤进行形式和细节上的各种修正和改变，但是这些修正和改变仍在以上描述的范围之内。例如，外壳侧面、外壳背面和外壳支架可以是一体成型结构。诸如此类的变形，均在本申请的保护范围之内。
图26是根据本申请的一些实施例所示的一种扬声器的纵截面示意图。如图26所示，扬声器1000可以包括第一磁性元件1002、第一导磁元件1004、第二导磁元件1006、第一振动板10008、音圈1010、第二振动板1012以及振动面板1014。其中，扬声器中耳机芯的部分元件可以组成磁路组件。在一些实施例中，磁路组件可以包括第一磁性元件1002、第一导磁元件1004、第二导磁元件1006。磁路组件可以产生第一全磁场(也可被称为“磁路组件的总磁场”或“第一磁场”)。
在本申请中描述的磁性元件是指可以产生磁场的元件，例如磁铁等。所述磁性元件可以具有磁化方向，所述磁化方向是指在所述磁性元件内部的磁场方向。在一些实施例中，第一磁性元件1002可以包括一个或多个磁铁，第一磁性元件可以产生第二磁场。在一些实施例中，所述磁铁可以包括金属合金磁铁，铁氧体等。其中，金属合金磁铁可以包括钕铁硼、钐钴、铝镍钴、铁铬钴、铝铁硼、铁碳铝，或类似的，或其中多种的组合。铁氧体可以包括钡铁氧体，钢铁氧体，关锰铁氧体，锂锰铁氧体，或类似的，或其中多种组合。
在一些实施例中，第一导磁元件1004的下表面可以连接第一磁性元件1002的上表面。第二导磁元件1006可以连接第一磁性元件1002。需要注意的是，这里所说的导磁体也可以称为磁场集中器或铁芯。导磁体可以调整磁场(例如，第一磁性元件1002产生的第二磁场)的分布。所述导磁体可以包括由软磁材料加工而成的元件。在一些实施例中，所述软磁材料可以包括金属材料、金属合金、金属氧化物材料、非晶金属材料等，例如铁、铁硅系合金、铁铝系合金、镍铁系合金、铁钴系合金、低碳钢、硅钢片、矽钢片、铁氧体等。在一些实施例中，可以通过铸造、塑性加工、切削加工、粉末冶金等一种或多种组合的方法加工所述导磁体。铸造可以包括砂型铸造、熔模铸造、压力铸造、离心铸造等；塑性加工可以包括轧制、铸造、锻造、冲压、挤压、拔制等一种或多种组合；切削加工可以包括车削、铣削、刨削、磨削等。在一些实施例中，所述导磁体的加工方法可以包括3D打印、数控机床等。第一导磁元件1004、第二导磁元件1006与第一磁性元件1002之间的连接方式可以包括粘接、卡接、焊接、铆接、螺栓连接等一种或多种组合。在一些实施例中，第一磁性元件1002、第一导磁元件1004和第二导磁元件1006可以设置为轴对称结构。所述轴对称结构可以是环状结构、柱状结构或是其它具有轴对称结构。
在一些实施例中，第一磁性元件1002与第二导磁元件1006之间可以形成磁间隙。音圈1010可以设置于所述磁间隙中。音圈1010可以与第一振动板1008连接。第一振动板1008可以连接第二振动板1012，第二振动板1012可以连接振动面板1014。当所述音圈1010内通入电流后，所述音圈1010位于在第一磁性元件1002、第一导磁元件1004和第二导磁元件1006形成的磁场，会受到安培力作用，所述安培力驱动音圈1010振动，音圈1010的振动会带动第一振动板1008、第二振动板1012和振动面板1014的振动。振动面板1014将所述振动通过组织与骨骼传递到听觉神经，从而使人听到声音。所述振动面板1014可以直接与人体皮肤接触，或可以通过由特定材料组成的振动传递层与皮肤接触。
在一些实施例中，对于具有单一磁性元件的扬声器，通过音圈处的磁感线并不均匀，呈发散状。同时磁路中可能会形成漏磁，即较多的磁感线泄漏至磁间隙以外，未能穿过音圈，从而使得 音圈位置处的磁感应强度(或磁场强度)下降，影响扬声器的灵敏度。因此，扬声器1000可以进一步包括至少一个第二磁性元件和/至少一个第三导磁元件(图中未示)。所述至少一个第二磁性元件和/至少一个第三导磁元件可以抑制磁感线的泄露，约束穿过音圈的磁感线形态，使得较多的磁感线尽量水平密集地穿过音圈，增强音圈位置处的磁感应强度(或磁场强度)，从而提高扬声器1000的灵敏度，进而提高扬声器1000的机械转化效率(即，将输入扬声器1000的电能转化为音圈振动的机械能的效率)。
图27是根据本申请的一些实施例所示的一种磁路组件2100的纵截面示意图。如图27所示，磁路组件2100可以包括第一磁性元件2102、第一导磁元件2104、第二导磁元件2106以及第二磁性元件2108。在一些实施例中，第一磁性元件2102和/或第二磁性元件2108可以包括本申请中描述的任意一种或几种磁铁。在一些实施例中，第一磁性元件2102可以包括第一磁铁，第二磁性元件2108可以包括第二磁铁，所述第一磁铁与所述第二磁铁可以相同或不同。第一导磁元件2104和/或第二导磁元件2106可以包括本申请中描述的任意一种或几种导磁材料。第一导磁元件2104和/或第二导磁元件2106的加工方法可以包括本申请中描述的任意一种或几种加工方式。在一些实施例中，第一磁性元件2102和/或第一导磁元件2104可以设置为轴对称结构。例如，第一磁性元件2102和/或第一导磁元件2104可以是圆柱体，长方体，或者中空的环状(例如，横截面为跑道的形状)。在一些实施例中，第一磁性元件2102和第一导磁元件2104可以是共轴的圆柱体，含有相同或者不同的直径。在一些实施例中，第二导磁元件2106可以是凹槽型结构。所述凹槽型结构可以包含U型的剖面(如图26所示)。所述凹槽型的第二导磁元件2106可以包括底板和侧壁。在一些实施例中，所述底板和所述侧壁可以是一体成型的，例如，所述侧壁可以由底板在垂直于底板的方向进行延伸形成。在一些实施例中，所述底板可以通过本申请中描述的任意一种或几种连接方式连接所述侧壁。第二磁性元件2108可以设定为环状或片状。在一些实施例中，第二磁性元件2108可以是环状的。第二磁性元件2108可以包括内环以及外环。在一些实施例中，所述内环和/或外环的形状可以是圆形、椭圆、三角形、四边形或其它任意多边形在一些实施例中，第二磁性元件2108可以由多个磁体排列组成。所述多个磁体的任意一个磁体的两端可以与相邻的磁体的两端连接或存在一定的间距。多个磁体之间的间距可以相同或不同。在一些实施例中，所述第二磁性元件2108可以由2个或3个片状的磁体等距排列构成。所述片状的磁体的形状可以是扇形、四边形等。在一些实施例中，第二磁性元件2108可以与第一磁性元件2102和/或第一导磁元件2104共轴。
在一些实施例中，第一磁性元件2102的上表面可以连接第一导磁元件2104的下表面。第一磁性元件2102的下表面可以连接第二导磁元件206的底板。第二磁性元件2108的下表面连接第二导磁元件2106的侧壁。第一磁性元件2102、第一导磁元件2104、第二导磁元件2106和/或第二磁性元件2108之间的连接方式可以包括粘接、卡接、焊接、铆接、螺栓连接等一种或多种组合。
在一些实施例中，第一磁性元件2102和/或第一导磁元件2104与第二磁性元件2108的内环之间形成磁间隙。音圈2128可以设置于所述磁间隙中。在一些实施例中，所述第二磁性元件2108与所述音圈2128相对于第二导磁元件2106的底板的高度相等。在一些实施例中，第一磁性元件 2102、第一导磁元件2104、第二导磁元件2106以及第二磁性元件2108可以形成磁回路。在一些实施例中，磁路组件2100可以产生第一全磁场(也可被称为“磁路组件的总磁场”或“第一磁场”)，第一磁性元件2102可以产生第二磁场。所述第一全磁场由所述磁路组件2100中的所有组分(例如，第一磁性元件2102，第一导磁元件2104、第二导磁元件2106以及第二磁性元件2108)产生的磁场共同形成。所述第一全磁场在所述磁间隙内的磁场强度(也可以被称为磁感应强度或者磁通量密度)大于所述第二磁场在所述磁间隙内的磁场强度。在一些实施例中，第二磁性元件2108可以产生第三磁场，所述第三磁场可以提高所述第一全磁场在所述磁间隙处的磁场强度。这里所说的第三磁场提高第一全磁场的磁场强度指的是，在有第三磁场存在(即，存在第二磁性元件2108)时第一全磁场在所述磁间隙的磁场强度大于没有第三磁场存在(即，不存在第二磁性元件2108)时第一全磁场的。在本说明书中的其他实施例中，除非特别说明，磁路组件表示包含所有磁性元件和导磁元件的结构，第一全磁场表示由磁路组件整体产生的磁场，第二磁场、第三磁场、……、第N磁场分别表示由相应的磁性元件所产生的磁场。在不同的实施例中，产生所述第二磁场(或者第三磁场、……、第N磁场)的磁性元件可以是相同的，也可以不同。
在一些实施例中，第一磁性元件2102的磁化方向与第二磁性元件2108的磁化方向之间的夹角在0度与180度之间。在一些实施例中，第一磁性元件2102的磁化方向与第二磁性元件2108的磁化方向与之间的夹角在45度与135度之间。在一些实施例中，第一磁性元件2102的磁化方向与第二磁性元件2108的磁化方向之间的夹角等于或大于90度。在一些实施例中，第一磁性元件2102的磁化方向垂直于第一磁性元件2102的下表面或上表面竖直向上(如图中a所示方向)，第二磁性元件2108的磁化方向由第二磁性元件2108的内环指向外环(如图中b所方向示，在第一磁性元件2102的右侧，第一磁性元件2102的磁化方向沿着顺时针方向偏转90度)。
在一些实施例中，在第二磁性元件2108的位置，所述第一全磁场的方向与第二磁性元件2108的磁化方向之间的夹角不高于90度。在一些实施例中，在第二磁性元件2108的位置处，第一磁性元件2102产生的磁场的方向与第二磁性元件2108的磁化方向之间的夹角可以是0度、10度、20度等小于或等于90度的夹角。
与单一磁性元件的磁路组件相比，第二磁性元件2108可以提高磁路组件2100中磁间隙内总磁通量，进而增加磁间隙中的磁感应强度。并且，在第二磁性元件2108的作用下，原本发散的磁感线会向磁间隙所在位置收敛，进一步增加磁间隙中的磁感应强度。
图28是根据本申请的一些实施例所示的磁路组件2600的纵截面示意图。如图28所示，磁路组件2600与磁路组件2100的不同之处在于，其可以进一步包括至少一个导电元件(例如，第一导电元件2118、第二导电元件2120以及第三导电元件2122)。
所述导电元件可以包括金属材料、金属合金材料、无机非金属材料或其它导电材料。金属材料可以包括金、银、铜、铝等；金属合金材料可以包括铁基合金、铝基合金材料、铜基合金、锌基合金等；无机非金属材料可以包括石墨等。所述导电元件可以是片状、环状、网状等。第一导电元件2118可以设置于第一导磁元件2104的上表面。第二导电元件2120可以连接第一磁性元件2102 以及第二导磁元件2106。第三导电元件2122可以连接第一磁性元件2102的侧壁。在一些实施例中，第一导磁元件2104可以凸出于第一磁性元件2102形成第一凹部，第三导电元件2122设置于所述第一凹部。在一些实施例中，第一导电元件2118、第二导电元件2120以及第三导电元件2122可以包括相同或不同的导电材料。第一导电元件2118、第二导电元件2120以及第三导电元件2122可以通过本申请中描述的任意一种或多种连接方式分别连接第一导磁元件2104、第二导磁元件2106和/或第一磁性元件2102。
第一磁性元件2102、第一导磁元件2104与第二磁性元件2108的内环之间形成磁间隙。音圈2128可以设置于所述磁间隙中。第一磁性元件2102、第一导磁元件2104、第二导磁元件2106以及第二磁性元件2108可以形成磁回路。在一些实施例中，所述导电元件可以降低音圈2128的感抗。例如，若音圈2128通入第一交变电流时，音圈2128附近会产生第一交变感应磁场。第一交变感应磁场在所述磁回路中磁场的作用下，会使音圈2128产生感抗，阻碍音圈2128的运动。当在音圈2128附近设置导电元件(例如，第一导电元件2118、第二导电元件2120以及第三导电元件2122)，在所述第一交变感应磁场作用下，所述导电元件可以感生出第二交变电流。所述导电元件内的第三交变电流可以在其附近产生第二交变感应磁场，所述第二交变感应磁场与所述第一交变感应磁场方向相反，可以减弱所述第一交变感应磁场，从而减小音圈2128的感抗，增大音圈中的电流，提高扬声器的灵敏度。
图29是根据本申请的一些实施例所示的一种磁路组件2700的纵截面示意图。如图29所示，磁路组件2700与磁路组件2500的不同之处在于，磁路组件2700可以进一步包括第三磁性元件2110、第四形磁性元件2112、第五磁性元件2114、第三导磁元件2116、第六磁性元件2124以及第七磁性元件2126。第三磁性元件2110、第四磁性元件2112、第五磁性元件2114、第三导磁元件2116和/或第六磁性元件2124以及第七磁性元件2126可以设置为共轴的环形柱体。
在一些实施例中，第二磁性元件2108的上表面连接第七磁性元件2126，第二磁性元件2108的下表面可以连接第三磁性元件2110。第三磁性元件2110可以连接第二导磁元件2106。第七磁性元件2126的上表面可以连接第三导磁元件2116。第四磁性元件2112可以连接第二导磁元件2106以及第一磁性元件2102。第六磁性元件2124可以连接第五磁性元件2114、第三导磁元件2116以及第七磁性元件2126。在一些实施例中，第一磁性元件2102、第一导磁元件2104、第二导磁元件2106、第二磁性元件2108、第三磁性元件2110、第四磁性元件2112、第五磁性元件2114、第三导磁元件2116、第六磁性元件2124以及第七磁性元件2126可以形成磁回路以及磁间隙。
在一些实施例中，第一磁性元件2102的磁化方向与第六磁性元件2124的磁化方向之间的夹角可以在0度与180度之间。在一些实施例中，第一磁性元件2102的磁化方向与第六磁性元件2124的磁化方向与之间的夹角在45度与135度之间。在一些实施例中，第一磁性元件2102的磁化方向与第六磁性元件2124的磁化方向之间的夹角不高于90度。在一些实施例中，第一磁性元件2102的磁化方向垂直于第一磁性元件2102的下表面或上表面竖直向上(如图a方向所示)，第六磁性元件2124的磁化方向由第六磁性元件2124的外环指向内环(如图中g方向所示，在第一磁性 元件2102的右侧，第一磁性元件2102的磁化方向沿着顺时针方向偏转270度)。在一些实施例中，在同一竖直方向上，第六磁性元件2124的磁化方向与第四磁性元件2112的磁化方向可以相同。
在一些实施例中，在第六磁性元件2124的位置处，磁路组件2700产生的磁场的方向与第六磁性元件2124的磁化方向之间的夹角不高于90度。在一些实施例中，在第六磁性元件2124的位置处，第一磁性元件2102产生的磁场的方向与第六磁性元件2124的磁化方向之间的夹角可以是0度、10度、20度等小于或等于90度的夹角。
在一些实施例中，所述第一磁性元件2102的磁化方向与第七磁性元件2126的磁化方向之间的夹角可以在0度与180度之间。在一些实施例中，第一磁性元件2102的磁化方向与第七磁性元件2126的磁化方向与之间的夹角在45度与135度之间。在一些实施例中，所述第一磁性元件2102的磁化方向与第七磁性元件2126的磁化方向之间的夹角不高于90度。在一些实施例中，第一磁性元件2102的磁化方向垂直于第一磁性元件2102的下表面或上表面竖直向上(如图a方向所示)，第七磁性元件2126的磁化方向由第七磁性元件2126的下表面指向上表面(如图中f方向所示，在第一磁性元件2102的右侧，第一磁性元件2102的磁化方向沿着顺时针方向偏转360度)。在一些实施例中，第七磁性元件2126的磁化方向与第三磁性元件2110的磁化方向可以相反。
在一些实施例中，在第七磁性元件2126处，磁路组件2700产生的磁场的方向与所述第七磁性元件2126的磁化方向之间的夹角不高于90度。在一些实施例中，在第七磁性元件2126的位置处，第一磁性元件2102产生的磁场的方向与第七磁性元件2126的磁化方向之间的夹角可以是0度、10度、20度等小于或等于90度的夹角。
在磁路组件2700中，第三导磁元件2116可以将磁路组件2700产生的磁路封闭，使得较多的磁感线集中于所述磁间隙内，从而达到抑制漏磁、增加磁间隙处的磁感应强度、及提高扬声器的灵敏度的功效。
图30是根据本申请的一些实施例所示的一种磁路组件2900的纵截面示意图。如图30所示，磁路组件2900可以包括第一磁性元件2902、第一导磁元件2904、第一全磁场改变元件2906以及第二磁性元件2908。
第一磁性元件2902的上表面可以连接第一导磁元件2904的下表面，第二磁性元件2908可以连接第一磁性元件2902以及第一全磁场改变元件2906。第一磁性元件2902、第一导磁元件2904、第一全磁场改变元件2906和/或第二磁性元件2908之间的连接方式可以基于本申请中描述的任意一种或几种连接方式。在一些实施例中，第一磁性元件2902、第一导磁元件2904、第一全磁场改变元件2906和/或第二磁性元件2908可形成磁回路及磁间隙。
在一些实施例中，磁路组件2900可以产生第一全磁场，第一磁性元件2902可以产生第二磁场，所述第一全磁场在所述磁间隙内的磁场强度大于所述第二磁场在所述磁间隙内的磁场强度。在一些实施例中，第二磁性元件2908可以产生第三磁场，所述第三磁场可以提高所述第二磁场在所述磁间隙处的磁场强度。
在一些实施例中，第一磁性元件2902的磁化方向与第二磁性元件2908的磁化方向之间的 夹角可以在0度与180度之间。在一些实施例中，第一磁性元件2902的磁化方向与第二磁性元件2908的磁化方向与之间的夹角在45度与135度之间。在一些实施例中，第一磁性元件2902的磁化方向与第二磁性元件2908的磁化方向之间的夹角可以不高于90度。
在一些实施例中，在第二磁性元件2908的位置处，所述第一全磁场的方向与第二磁性元件2908的磁化方向之间的夹角不高于90度。在一些实施例中，在第二磁性元件2908的位置处，第一磁性元件2902产生的磁场的方向与第二磁性元件2908的磁化方向之间的夹角可以是0度、10度、20度等小于或等于90度的夹角。又例如，第一磁性元件2902的磁化方向垂直于第一磁性元件2902的下表面或上表面竖直向上(如图a方向所示)，第二磁性元件2908的磁化方向由第二磁性元件2908的外环指向内环(如图中c方向所示，在第一磁性元件2902的右侧，第一磁性元件2902的磁化方向沿着顺时针方向偏转270度)。
与单一磁性元件的磁路组件相比，磁路组件2900中的第一全磁场改变元件2906可以提高磁间隙中的总磁通量，进而增加磁间隙中的磁感应强度。并且，在第一全磁场改变元件2906的作用下，原本发散的磁感线会向磁间隙所在位置收敛，进一步增加磁间隙中的磁感应强度。
图31是根据本申请的一些实施例所示的一种磁路组件3000的纵截面示意图。如图31所示，在一些实施例中，磁路组件3000可以包括第一磁性元件2902、第一导磁元件2904、第一全磁场改变元件2906、第二磁性元件2908、第三磁性元件2910、第四磁性元件2912、第五磁性元件2916、第六磁性元件2918、第七磁性元件2920以及第二环形元件2922。第一磁性元件2902、第一导磁元件2904、第一全磁场改变元件2906、第二磁性元件2908、第三磁性元件2910、第三磁性元件2910、第四磁性元件2912以及第五磁性元件2916。在一些实施例中，第一全磁场改变元件2906和/或第二环形元件2922可以包括环形磁性元件或环形导磁元件。所述环形磁性元件可以包括本申请中描述的任意一种或几种磁铁材料，所述环形导磁元件可以包括本申请中描述的任意一种或几种导磁材料。
在一些实施例中，第六磁性元件2918可以连接第五磁性元件2916以及第二环形元件2922，第七磁性元件2920可以连接第三磁性元件2910以及第二环形元件2922。在一些实施例中，第一磁性元件2902、第五磁性元件2916、第二磁性元件2908、第三磁性元件2910、第四磁性元件2912、第六磁性元件2918和/或第七磁性元件2920与所述第一导磁元件2904、第一全磁场改变元件2906以及第二环形元件2922可以形成磁回路。
在一些实施例中，所述第一磁性元件2902的磁化方向与第六磁性元件2918的磁化方向之间的夹角可以在0度与180度之间。在一些实施例中，第一磁性元件2902的磁化方向与第六磁性元件2918的磁化方向与之间的夹角在45度与135度之间。在一些实施例中，所述第一磁性元件2902的磁化方向与第六磁性元件2918的磁化方向之间的夹角不高于90度。在一些实施例中，第一磁性元件2902的磁化方向垂直于第一磁性元件2902的下表面或上表面竖直向上(如图a方向所示)，第六磁性元件2918的磁化方向由第六磁性元件2918的外环指向内环(如图中f方向所示，在第一磁性元件2902的右侧，第一磁性元件2902的磁化方向沿着顺时针方向偏转270度)。在一 些实施例中，在同一竖直方向上，第六磁性元件2918的磁化方向与第二磁性元件2908的磁化方向可以相同。在一些实施例中，第一磁性元件2902的磁化方向垂直于第一磁性元件2902的下表面或上表面竖直向上(如图a方向所示)，第七磁性元件2920的磁化方向由第七磁性元件2920的下表面指向上表面(如图中e方向所示，在第一磁性元件2902的右侧，第一磁性元件2902的磁化方向沿着顺时针方向偏转360度)。在一些实施例中，第七磁性元件2920的磁化方向与第四磁性元件2912的磁化方向可以相同。
在一些实施例中，在第六磁性元件2918的位置处，磁路组件2900产生的磁场的方向与所述第六磁性元件2918的磁化方向之间的夹角不高于90度。在一些实施例中，在第六磁性元件2918的位置处，第一磁性元件2902产生的磁场的方向与第六磁性元件2918的磁化方向之间的夹角可以是0度、10度、20度等小于或等于90度的夹角。
在一些实施例中，所述第一磁性元件2902的磁化方向与第七磁性元件2920的磁化方向之间的夹角可以在0度与180度之间。在一些实施例中，第一磁性元件2902的磁化方向与第七磁性元件2920的磁化方向与之间的夹角在45度与135度之间。在一些实施例中，所述第一磁性元件2902的磁化方向与第七磁性元件2920的磁化方向之间的夹角不高于90度。
在一些实施例中，在第七磁性元件2920的位置处，磁路组件3000产生的磁场的方向与所述第七磁性元件2920的磁化方向之间的夹角不高于90度。在一些实施例中，在第七磁性元件2920的位置处，第一磁性元件2902产生的磁场的方向与第七磁性元件2920的磁化方向之间的夹角可以是0度、10度、20度等小于或等于90度的夹角。
在一些实施例中，第一全磁场改变元件2906可以是环形磁性元件。在这种情况下，第一全磁场改变元件2906的磁化方向可以与第二磁性元件2908或第四磁性元件2912的磁化方向相同。例如，在第一磁性元件2902的右侧，第一全磁场改变元件2906的磁化方向可以由第一全磁场改变元件2906的外环指向内环。在一些实施例中，第二环形元件2922可以是环形磁性元件。在这种情况下，第二环形元件2922的磁化方向可以与第六磁性元件2918或第七磁性元件2920的磁化方向相同。例如，在第一磁性元件2902的右侧，第二环形元件2922的磁化方向可以由第二环形元件2922的外环指向内环。
在磁路组件3000中，多个磁性元件可以提高总的磁通量，不同磁性元件相互作用，可以抑制磁感线泄漏，提高磁间隙处的磁感应强度，提高扬声器的灵敏度。
图32是根据本申请的一些实施例所示的一种磁路组件3100的纵截面示意图。如图32所示，磁路组件3100可以包括第一磁性元件3102、第一导磁元件3104、第二导磁元件3106以及第二磁性元件3108。
在一些实施例中，第一磁性元件3102和/或第二磁性元件3108可以包括本申请中描述的任意一种或几种磁铁。在一些实施例中，第一磁性元件3102可以包括第一磁铁，第二磁性元件3108可以包括第二磁铁，所述第一磁铁与所述第二磁铁可以相同或不同。第一导磁元件3104和/或第二导磁元件3106可以包括本申请中描述的任意一种或几种导磁材料。第一导磁元件3104和/或第二导 磁元件3106的加工方法可以包括本申请中描述的任意一种或几种加工方式。在一些实施例中，第一磁性元件3102、第一导磁元件3104和/或第二磁性元件3108可以设置为轴对称结构。例如，第一磁性元件3102、第一导磁元件3104和/或第二磁性元件3108可以是圆柱体。在一些实施例中，第一磁性元件3102、第一导磁元件3104和/或第二磁性元件3108可以是共轴的圆柱体，含有相同或者不同的直径。第一磁性元件3102的厚度可以大于或等于第二磁性元件3108的厚度。在一些实施例中，第二导磁元件3106可以是凹槽型结构。所述凹槽型结构可以包含U型的剖面。所述凹槽型的第二导磁元件3106可以包括底板和侧壁。在一些实施例中，所述底板和所述侧壁可以是一体成型的，例如，所述侧壁可以由底板在垂直于底板的方向进行延伸形成。在一些实施例中，所述底板可以通过本申请中描述的任意一种或几种连接方式连接所述侧壁。第二磁性元件3108可以设定为环状或片状。关于第二磁性元件3108的形状可参考说明书中其他地方的描述。在一些实施例中，第二磁性元件3108可以与第一磁性元件3102和/或第一导磁元件3104共轴。
第一磁性元件3102的上表面可以连接第一导磁元件3104的下表面。第一磁性元件3102的下表面可以连接第二导磁元件3106的底板。第二磁性元件3108的下表面连接第一导磁元件3104的上表面。第一磁性元件3102、第一导磁元件3104、第二导磁元件3106和/或第二磁性元件3108之间的连接方式可以包括粘接、卡接、焊接、铆接、螺栓连接等一种或多种组合。
第一磁性元件3102、第一导磁元件3104和/或第二磁性元件3108与第二导磁元件3106的侧壁之间形成磁间隙。音圈可以设置于所述磁间隙中。在一些实施例中，第一磁性元件3102、第一导磁元件3104、第二导磁元件3106以及第二磁性元件3108可以形成磁回路。在一些实施例中，磁路组件3100可以产生第一全磁场，第一磁性元件3102可以产生第二磁场。所述第一全磁场由所述磁路组件3100中的所有组分(例如，第一磁性元件3102，第一导磁元件3104、第二导磁元件3106以及第二磁性元件3108)产生的磁场共同形成。所述第一全磁场在所述磁间隙内的磁场强度(也可以被称为磁感应强度或者磁通量密度)大于所述第二磁场在所述磁间隙内的磁场强度。在一些实施例中，第二磁性元件3108可以产生第三磁场，所述第三磁场可以提高所述第二磁场在所述磁间隙处的磁场强度。
在一些实施例中，第二磁性元件3108的磁化方向与第一磁性元件3102的磁化方向之间的夹角在90度与180度之间。在一些实施例中，第二磁性元件3108的磁化方向与第一磁性元件3102的磁化方向之间的夹角在150度与180度之间。在一些实施例中，第二磁性元件3108的磁化方向与第一磁性元件3102的磁化方向相反(如图所示，a方向与b方向)。
与单一磁性元件的磁路组件相比，磁路组件3100增加了第二磁性元件3108。第二磁性元件3108磁化方向与第一磁性元件3102磁化方向相反，可以抑制第一磁性元件3102在磁化方向上的漏磁，从而使第一磁性元件3102产生的磁场可以较多地被压缩到磁间隙中，因而提高磁间隙内的磁感应强度。
需要注意的是，以上对扬声器装置的描述仅仅是具体的示例，不应被视为是唯一可行的实施方案。显然，对于本领域的专业人员来说，在了解扬声器装置的基本原理后，可能在不背离这一 原理的情况下，对实施扬声器装置的具体方式与步骤进行形式和细节上的各种修正和改变，但是这些修正和改变仍在以上描述的范围之内。例如，磁路组件中的磁性元件不限于上述的第一磁性元件、第二磁性元件、第三磁性元件、第四磁性元件、第五磁性元件、第六磁性元件、第七磁性元件，还可以增加或减少磁性元件的数量。诸如此类的变形，均在本申请的保护范围之内。
在一些实施例中，以上描述的扬声器装置(例如MP3播放器)也可以通过气传导的方式将声音传递给用户。当采用气传导的方式传递声音时，所述扬声器装置可以包括一个或多个声源。所述声源可以位于用户头部的特定位置，例如，头顶、额头、脸颊、鬓角、耳廓、耳廓背面等，而不用堵塞或者覆盖耳道。出于描述的目的，图33显示一种通过气传导的方式传递声音的示意图。
如图33所示，声源3310和声源3320可以产生相位相反的声波(图中以“+”和“-”表示相位相反)。为简单起见，这里所说的声源指的是扬声器装置上输出声音的出声孔。例如，所述声源3310和声源3320可以是分别位于MP3播放器上特定位置(例如，机芯壳体20，或者电路壳体30)的两个出声孔。
在一些实施例中，声源3310和声源3320可以由同一个振动装置3301产生。所述振动装置3301包括振膜(未显示在图中)。当所述振膜受到电信号驱动而振动时，振膜正面驱动空气振动，通过导声通道3312在出声孔处形成声源3310，振膜背面驱动空气振动，通过导声通道3322在出声孔处形成声源3320。所述导声通道指的是振膜到对应出声孔的声音传播路径。在一些实施例中，所述导声通道是由扬声器上特定结构(例如，机芯壳体20，或者电路壳体30)围成的路径。需要知道的是，在一些可替代的实施例中，声源3310和声源3320还可以由不同的振动装置，分别通过不同的振膜振动产生。
由声源3310和声源3320产生的声音中，一部分传递给用户耳朵形成用户听到的声音，另一部分传递到环境中形成漏音。考虑到声源3310和声源3320距离用户耳朵的位置较近，为了描述方便，所述传递到用户耳朵的声音可以称为近场声音，所述传递到环境中的漏音可以称为远场声音。在一些实施例中，所述扬声器装置产生的不同频率的近场/远场声音与声源3310和声源3320之间的间距有关。一般说来，扬声器装置产生的近场声音会随着两个声源之间间距的增大而增大，而产生的远场声音(漏音)会随着频率的增加而增大。
针对不同频率的声音，可以分别设计声源3310和声源3320之间的间距，使得扬声器装置产生的低频近场声音(例如，频率小于800Hz的声音)尽可能大，且高频远场声音(例如，频率大于2000Hz的声音)尽可能小。为了达到以上目的，所述扬声器装置中可以包括两组或两组以上的双声源，每组双声源包含类似于声源3310和声源3320的两个声源，并分别产生特定频率的声音。具体地，第一组双声源可以用于产生低频声音，第二组双声源可以用产生高频声音。为了获得较大的低频近场声音，第一组双声源中两个声源之间的距离可以设置为较大的值。并且由于低频信号的波长较长，双声源之间较大的距离不会在远场形成过大的相位差，因而也不会在远场中形成过多的漏音。为了使得高频远场声音较小，第二组双声源中两个声源之间的距离可以设置为较小的值。由于高频信号的波长较短，双声源之间较小的距离可以避免在远场形成大的相位差，因而可以避免形 成大的漏音。所述第二组双声源之间的距离小于所述第一组双声源之间的距离。
本申请实施例可能带来的有益效果包括但不限于：(1)本申请中通过各个部件之间的密封连接可以提高扬声器装置的防水效果；(2)通过调整面板的法线A或面板与人体皮肤接触面的法线A’与装置驱动力所在直线B之间的夹角θ可以改善扬声器的音质；(3)通过提高壳体整体刚度，外壳面板和外壳背面能够在较高的频率下保持相同或者基本相同的振动幅度和相位，从而减小扬声器装置的漏音；(4)通过在磁路组件中增设磁性元件、导磁元件和导电元件，可以提高扬声器装置的灵敏度。需要说明的是，不同实施例可能产生的有益效果不同，在不同的实施例里，可能产生的有益效果可以是以上任意一种或几种的组合，也可以是其他任何可能获得的有益效果。
上文已对基本概念做了描述，显然，对于本领域技术人员来说，上述发明披露仅仅作为示例，而并不构成对本申请的限定。虽然此处并没有明确说明，本领域技术人员可能会对本申请进行各种修改、改进和修正。该类修改、改进和修正在本申请中被建议，所以该类修改、改进、修正仍属于本申请示范实施例的精神和范围。
同时，本申请使用了特定词语来描述本申请的实施例。如“一个实施例”、“一实施例”和/或“一些实施例”意指与本申请至少一个实施例相关的某一特征、结构或特点。因此，应强调并注意的是，本说明书中在不同位置两次或多次提及的“一实施例”或“一个实施例”或“一替代性实施例”并不一定是指同一实施例。此外，本申请的一个或多个实施例中的某些特征、结构或特点可以进行适当的组合。
此外，本领域技术人员可以理解，本申请的各方面可以通过若干具有可专利性的种类或情况进行说明和描述，包括任何新的和有用的工序、机器、产品或物质的组合或对他们的任何新的和有用的改进。相应地，本申请的各个方面可以完全由硬件执行、可以完全由软件(包括固件、常驻软件、微码等)执行、也可以由硬件和软件组合执行。以上硬件或软件均可被称为“模块”、“单元”、“组件”或“系统”。此外，本申请的各方面可能表现为位于一个或多个计算机可读介质中的计算机产品，该产品包括计算机可读程序编码。
此外，除非权利要求中明确说明，本申请所述处理元素和序列的顺序、数字字母的使用或其他名称的使用，并非用于限定本申请流程和方法的顺序。尽管上述披露中通过各种示例讨论了一些目前认为有用的发明实施例，但应当理解的是，该类细节仅起到说明的目的，附加的权利要求并不仅限于披露的实施例，相反，权利要求旨在覆盖所有符合本申请实施例实质和范围的修正和等价组合。例如，虽然以上所描述的系统组件可以通过硬件设备实现，但是也可以只通过软件的解决方案得以实现，如在现有的服务器或移动设备上安装所描述的系统。
同理，应当注意的是，为了简化本申请披露的表述，从而帮助对一个或多个发明实施例的理解，前文对本申请实施例的描述中，有时会将多种特征归并至一个实施例、附图或对其的描述中。但是，这种披露方法并不意味着本申请对象所需要的特征比权利要求中提及的特征多。实际上，实施例的特征要少于上述披露的单个实施例的全部特征。
一些实施例中使用了描述成分、属性数量的数字，应当理解的是，此类用于实施例描述的 数字，在一些示例中使用了修饰词“大约”、“近似”或“大体上”等来修饰。除非另外说明，“大约”、“近似”或“大体上”表明所述数字允许有±20％的变化。相应地，在一些实施例中，说明书和权利要求中使用的数值数据均为近似值，该近似值根据个别实施例所需特点可以发生改变。在一些实施例中，数值数据应考虑规定的有效数位并采用一般位数保留的方法。尽管本申请一些实施例中用于确认其范围广度的数值域和数据为近似值，在具体实施例中，此类数值的设定在可行范围内尽可能精确。
最后，应当理解的是，本申请中所述实施例仅用以说明本申请实施例的原则。其他的变形也可能属于本申请的范围。因此，作为示例而非限制，本申请实施例的替代配置可视为与本申请的教导一致。相应地，本申请的实施例不仅限于本申请明确介绍和描述的实施例。

Claims (30)

  1. 一种扬声器装置，其特征在于，包括：
    电路壳体，用于容纳控制电路或电池，所述控制电路或电池驱动耳机芯振动以产生声音；
    机芯壳体，用于容纳所述耳机芯；所述机芯壳体包括面向人体一侧的外壳面板和与所述外壳面板相对的外壳背面；所述耳机芯导致所述外壳面板和所述外壳背面振动，所述外壳面板的振动具有第一相位，所述外壳背面的振动具有第二相位；其中，所述外壳面板的振动和所述外壳背面的振动频率在2000Hz到3000Hz时，所述第一相位和所述第二相位的差值的绝对值小于60度；
    耳挂，用于连接所述机芯壳体和所述电路壳体；以及
    壳体护套，至少部分包覆于所述电路壳体和所述耳挂的外围，所述壳体护套由防水材料制成。
  2. 根据权利要求1所述的扬声器装置，其特征在于，所述壳体护套为一端开口的袋状结构，以使得所述电路壳体经由所述壳体护套的开口端进入所述壳体护套的内部。
  3. 根据权利要求2所述的扬声器装置，其特征在于，所述壳体护套的开口端设置有向内凸出的环状凸缘，当所述壳体护套包覆于所述电路壳体的外围时，所述环状凸缘抵接于所述电路壳体远离所述耳挂的端部。
  4. 根据权利要求3所述的扬声器装置，其特征在于，在所述环状凸缘与所述电路壳体远离所述耳挂的端部的接合区域施加有密封胶，以对所述壳体护套和电路壳体进行密封连接。
  5. 根据权利要求3所述的扬声器装置，其特征在于，所述电路壳体远离所述耳挂的端部包含第一环形台面，所述第一环形台面与所述环状凸缘卡接连接，以对所述壳体护套进行定位。
  6. 根据权利要求5所述的扬声器装置，其特征在于，所述第一环形台面上设置有沿所述电路壳体背离所述耳挂的方向延伸的定位块，所述壳体护套的环状凸缘处设置有与所述定位块对应的定位槽，所述定位槽用于容纳至少部分所述定位块，以对所述壳体护套进行定位。
  7. 根据权利要求3所述的扬声器装置，其特征在于，所述电路壳体包括彼此扣合的两个子壳体，所述壳体护套对所述两个子壳体的接合缝进行全覆盖。
  8. 根据权利要求7所述的扬声器装置，其特征在于，两个所述子壳体彼此对接的接合面包括相互契合的阶梯结构。
  9. 根据权利要求3所述的扬声器装置，其特征在于，所述电路壳体上设置有多个安装孔，并在所述电路壳体的外表面凹陷设置有第一胶槽，所述多个安装孔位于所述第一胶槽内；
    所述扬声器装置进一步包括分别插置于所述安装孔内的导电柱，所述壳体护套进一步包括允许所述导电柱外露的外露孔，其中在所述第一胶槽内施加有密封胶，以在所述安装孔的外围对所述壳体护套和所述电路壳体进行密封连接。
  10. 根据权利要求9所述的扬声器装置，其特征在于，所述扬声器装置进一步包括辅助片，所述辅助片包括板体，所述板体上设置有镂空区，其中所述板体设置于所述电路壳体的内表面上，且所述安装孔位于所述镂空区内部，进而在所述导电柱外围形成第二胶槽，其中在所述第二胶槽内施加有密封胶，以在所述电路壳体的内部对所述安装孔进行密封。
  11. 根据权利要求1所述的扬声器装置，其特征在于，所述机芯壳体设置有接插孔；
    所述耳挂包括弹性金属丝以及设置于所述弹性金属丝一端的接插端，所述接插端与所述接插孔插接连接。
  12. 根据权利要求11所述的扬声器装置，其特征在于，所述接插孔的内侧壁上设置有止挡块；
    所述接插端包括：
    插入部，至少部分插入于所述接插孔内并抵接于所述止挡块的外侧面上；
    两个弹性卡勾，设置于所述插入部朝向所述机芯壳体内部的一侧，两个弹性卡勾能够在外部推力和所述止挡块的作用下彼此并拢，并在经过所述止挡块后弹性回复成卡置于所述止挡块的内侧面上，进而实现所述机芯壳体与所述接插端的接插固定。
  13. 根据权利要求12所述的扬声器装置，其特征在于，所述插入部部分插入于所述接插孔内，且在所述插入部的外露部分呈阶梯状设置，进而形成与所述机芯壳体的外端面间隔设置的第二环形台面，
    所述耳挂还包括设置于所述弹性金属丝以及所述接插端外围的保护套管，所述保护套管进一步延伸至所述第二环形台面朝向所述机芯壳体的外端面的一侧，并在所述机芯壳体与所述接插端接插固定时与所述机芯壳体弹性抵接。
  14. 根据权利要求13所述的扬声器装置，其特征在于，所述保护套管在所述第二环形台面朝向所述机芯壳体的外端面的一侧形成一环形抵接面以及位于所述环形抵接面内部且相对于所述环形抵接面凸出设置的环形凸台；
    所述机芯壳体包括用于连接所述机芯壳体的外端面和所述接插孔的内侧壁的连接斜面；
    其中，在所述机芯壳体与所述接插端接插固定时，所述环形抵接面和所述环形凸台分别与所述机芯壳体的外端面和所述连接斜面弹性抵接。
  15. 根据权利要求1所述的扬声器装置，其特征在于，所述外壳面板的振动具有第一振幅，所 述外壳背面的振动具有第二振幅，所述第一振幅和所述第二振幅的比值在0.5到1.5的范围之内。
  16. 根据权利要求1所述的扬声器装置，其特征在于，所述外壳面板的振动产生第一漏音声波，所述外壳背面的振动产生第二漏音声波，所述第一漏音声波和所述第二漏音声波相互叠加，所述叠加减小所述第一漏音声波的幅值。
  17. 根据权利要求1所述的扬声器装置，其特征在于，所述外壳面板与所述外壳其它部分通过胶水、卡接、焊接或螺纹连接中的一种或任意几种的组合进行连接。
  18. 根据权利要求1所述的扬声器装置，其特征在于，所述外壳面板和所述外壳背面由纤维增强塑料材料制成。
  19. 根据权利要求1所述的扬声器装置，其特征在于，所述耳机芯振动能够产生驱动力；
    所述外壳面板与所述耳机芯具有传动连接；所述外壳面板的全部或局部用于与使用者身体接触或抵靠，以传导声音；
    所述外壳面板上用于与使用者身体接触或抵靠的区域具有法线，所述驱动力所在直线与所述法线不平行。
  20. 根据权利要求19所述的扬声器装置，其特征在于，设定所述驱动力所在直线具有经面板指向扬声器装置外的正方向，设定所述法线具有指向扬声器装置外的正方向，则两条直线在其正方向上的夹角为锐角。
  21. 根据权利要求19所述的扬声器装置，其特征在于，所述耳机芯包括线圈以及磁路系统，线圈与磁路系统的轴线与所述法线不平行；
    所述轴线与线圈径向平面和/或磁路系统径向平面垂直。
  22. 根据权利要求19所述的扬声器装置，其特征在于，所述驱动力在XOY平面坐标系的第一象限和/或第三象限内具有分量；其中，
    XOY平面坐标系的原点O位于扬声器装置与人体接触面上，X轴与人体冠状轴平行，Y轴与人体矢状轴平行，且X轴正方向朝向人体外侧，Y轴正方向朝向人体前方。
  23. 根据权利要求19所述的扬声器装置，其特征在于，所述外壳面板上用于与使用者身体接触或抵靠的区域包括平面或准平面。
  24. 根据权利要求1所述的扬声器装置，其特征在于，所述耳机芯还包括磁路组件，所述磁路组件产生第一磁场，所述磁路组件包括：
    第一磁性元件，所述第一磁性元件产生第二磁场；
    第一导磁元件；以及
    至少一个第二磁性元件，所述至少一个第二磁性元件环绕所述第一磁性元件，并与所述第一磁性元件之间形成磁间隙，所述第一磁场在所述磁间隙内的磁场强度大于所述第二磁场在所述磁间隙内的磁场强度。
  25. 根据权利要求24所述的扬声器装置，其特征在于，进一步包括：
    第二导磁元件；以及
    至少一个第三磁性元件，其中，所述至少一个第三磁性元件连接所述第二导磁元件和所述至少一个第二磁性元件。
  26. 根据权利要求25所述的扬声器装置，其特征在于，进一步包括：
    至少一个第四磁性元件，其中，所述至少一个第四磁性元件位于所述磁间隙的下方并连接所述第一磁性元件以及所述第二导磁元件。
  27. 根据权利要求24所述的扬声器装置，其特征在于，进一步包括：
    至少一个第五磁性元件，其中，所述至少一个第五磁性元件连接所述第一导磁元件的上表面。
  28. 根据权利要求27所述的扬声器装置，其特征在于，进一步包括：
    第三导磁元件，其中，所述第三导磁元件连接所述第五磁性元件的上表面，所述第三导磁元件被配置为抑制所述第一磁场的场强泄露。
  29. 根据权利要求25所述的扬声器装置，其特征在于，所述第一导磁元件连接所述第一磁性元件的上表面，所述第二导磁元件包括底板和侧壁，以及所述第一磁性元件连接所述第二导磁元件的底板。
  30. 根据权利要求25所述的扬声器装置，其特征在于，进一步包括：
    至少一个导电元件，其中，所述导电元件连接所述第一磁性元件、所述第一导磁元件，或所述第二导磁元件中的至少一个元件。
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