WO2020140457A1 - 一种扬声器装置 - Google Patents
一种扬声器装置 Download PDFInfo
- Publication number
- WO2020140457A1 WO2020140457A1 PCT/CN2019/102401 CN2019102401W WO2020140457A1 WO 2020140457 A1 WO2020140457 A1 WO 2020140457A1 CN 2019102401 W CN2019102401 W CN 2019102401W WO 2020140457 A1 WO2020140457 A1 WO 2020140457A1
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- WIPO (PCT)
- Prior art keywords
- housing
- vibration
- speaker device
- sound
- circuit
- Prior art date
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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
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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
- 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
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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
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
- H04R1/1025—Accumulators or arrangements for charging
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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
- 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
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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
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
- H04R1/105—Earpiece supports, e.g. ear hooks
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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
- 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
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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
- 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
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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
- 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
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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
- 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
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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
- H04R9/02—Details
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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
- H04R9/02—Details
- H04R9/025—Magnetic circuit
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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
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
- H04R1/1058—Manufacture or assembly
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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
- 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
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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
- H04R2400/00—Loudspeakers
- H04R2400/11—Aspects regarding the frame of loudspeaker transducers
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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
- 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. Ordinary earphones can no longer satisfy users' normal use in some special scenarios, such as swimming, outdoor rainy days, etc., and 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 movement housing for accommodating an earphone core; a circuit housing for accommodating a control circuit or a battery that drives the earphone core to vibrate to generate Sound, the sound includes at least two resonance peaks; an earhook for connecting the movement case and the circuit case; and a case sheath, at least partially covering the circuit case and the On the periphery of 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 ear hook is provided on the first annular table, 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 earphone core includes at least a composite vibration device composed of a vibration plate and a second vibration transmission plate, and the composite vibration device generates the two resonance peaks.
- the earphone core further includes at least one voice coil and at least one magnetic circuit system; the voice coil is physically connected to the vibration plate, and the magnetic circuit system is physically connected to the second vibrating plate .
- the stiffness coefficient of the vibration plate is greater than the stiffness coefficient of the second vibration transmission plate.
- the earphone core further includes a first vibration transmitting plate; the first vibration transmitting plate and the composite vibration device are physically connected; the first vibration transmitting plate and the movement housing Are connected by physical means; the first vibrating plate can generate another resonance peak.
- the two resonance peaks are within the frequency range of the sound audible to the human ear.
- the movement housing further includes at least one contact surface that is at least partially in direct or indirect contact with the user; the contact surface has a gradient structure, so that the pressure distribution on the contact surface is uneven.
- the gradient structure includes at least one protrusion or at least one groove.
- the gradient structure is located at the center or edge of the contact surface.
- the movement housing further includes at least one contact surface that is at least partially in direct or indirect contact with the user; the contact surface includes at least a first contact surface area and a second contact surface Area, the second contact surface area is more convex than the first contact surface area.
- the first contact surface area includes a sound-inducing hole that guides the sound wave in the movement case and superimposes the sound leakage sound wave generated by the vibration of the movement case to reduce the leakage sound.
- the first contact surface area and the second contact surface area are made of plastics such as silicone, rubber, or plastic.
- the speaker device includes the above-mentioned speaker device and a key module; the key module is located on the movement housing or the circuit housing, and is used to control and operate the speaker device.
- the speaker device includes the speaker device as described above and an indicator light; the indicator light is located on the movement housing or the circuit housing and is used to display the status of the speaker device.
- 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 provided by some embodiments of the present application.
- FIG. 3 is a partial structural diagram of an ear hook in an MP3 player provided by 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 by 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 provided by 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 provided by some embodiments of the present application.
- 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 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 provided by 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 provided by some embodiments of the present application;
- FIG. 15 is a partial structural diagram of a rear-hanging MP3 player provided by some embodiments of the present application.
- 16 is an equivalent model of an MP3 player vibration generation and transmission system provided by some embodiments of the present application.
- 17 is a structural diagram of a composite vibration device in an MP3 player provided by an embodiment of the present application.
- FIG. 18 is a structural diagram of a composite vibration device in an MP3 player provided by an embodiment of the present application.
- 19 is a frequency response curve of an MP3 player to which an embodiment of the present application is applied;
- 20 is a structural diagram of an MP3 player and its composite vibration device provided by some embodiments of the present application.
- 21 is a vibration response curve of an applicable MP3 player provided by some embodiments of the present application.
- FIG. 22 is a structural diagram of a vibration generating part of an MP3 player provided by some embodiments of the present application.
- 25 is a schematic diagram of the contact surface of the vibration unit of the MP3 player provided by some embodiments of the present application.
- 26 is a vibration response curve of an MP3 player provided by some embodiments of the present application.
- 27 is a schematic diagram of the contact surface of the vibration unit of the MP3 player provided by some embodiments of the present application.
- 29 is a top view of the panel bonding method of the MP3 player provided by some embodiments of the present application.
- FIG. 30 is a structural diagram of a vibration generating part of an MP3 player provided by some embodiments of the present application.
- FIG. 31 is a graph of the vibration response of the vibration generating part of the MP3 player provided by some embodiments of the present application.
- FIG. 32 is a structural diagram of a vibration generating part of an MP3 player provided by some embodiments of the present application.
- 33 is a structural diagram of a key module of an MP3 player provided by some embodiments of the present application.
- 34 is a block diagram of a voice control system according to some embodiments of the present application.
- FIG. 35 is a schematic diagram of transmitting sound 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, headphones, MP3 players, hearing aids.
- an MP3 player is used as an example to describe the speaker device in detail.
- 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 casing 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, thereby making it 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 casing 20, thereby achieving the sealing between the plug end 14 and the jack 22, so as to protect the headphone core 50 and the like inside the movement casing 20, which can improve the performance of the MP3 player. 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 hook 10 and the circuit case 30 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 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 other shapes that can 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 requirements.
- 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 casing sheath 17 is fitted, a sealant may be coated on the ring-shaped mesa 37, thereby sealingly connecting the casing sheath 17 and the circuit casing 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 that the first sub-housing 301 and the second sub-housing 302 are locked together.
- 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 connection method between the connector 3a and the connector 421 and the connection method between the connector 15 and the connector 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 metal 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 shape of the socket 22 may be circular, and the shape of the socket 22 may also be irregular circular (the inner wall of the socket 22 is tooth-shaped). Such deformations are within the protection scope of this application.
- the sound quality of the MP3 player is affected by many factors such as the physical properties of the components of the speaker itself, the vibration transmission relationship between the components, the vibration transmission relationship between the speaker and the outside world, and the efficiency of the vibration transmission system in transmitting vibration.
- the components of the speaker itself include components that generate vibration (such as but not limited to the earphone core), components that fix the speaker (such as but not limited to the ear hook), components that transmit vibration (such as but not limited to the panel on the movement shell, Vibration transmission layer, etc.).
- the vibration transmission relationship between the components and the vibration transmission relationship between the speaker and the outside world are determined by the contact mode (such as but not limited to clamping force, contact area, contact shape, etc.) between the speaker and the user.
- FIG. 16 is an equivalent model of the vibration generation and transmission system of the MP3 player according to some embodiments of the present application. As shown in FIG. 16, it includes a fixed end 1101, a sensing terminal 1102, a vibration unit 1103, and an earphone core 1104. Among them, the fixed end 1101 is connected to the vibration unit 1103 through a transmission relationship K1 (k 4 in FIG. 16 ), and the sensor terminal 1102 is connected to the vibration unit 1103 through a transmission relationship K2 (R 3 , k 3 in FIG. 16 ), and the vibration unit 1103 passes The transfer relationship K3 (R 4 , k 5 in FIG. 16) is connected to the earphone core 1104.
- the vibration unit referred to here is a movement case, and the transfer relationships K1, K2, and K3 are descriptions of the action relationships between corresponding parts in the speaker equivalent system (to be described in detail below).
- the vibration equation of the equivalent system can be expressed as:
- m 3 is the equivalent mass of the vibration unit 1103, m 4 is the equivalent mass of the earphone core 1104, x 3 is the equivalent displacement of the vibration unit 1103, x 4 is the equivalent displacement of the earphone core 1104, and k 3 is the transmission
- the equivalent elastic coefficient between the sense terminal 1102 and the vibration unit 1103, k 4 is the equivalent elastic coefficient between the fixed end 1101 and the vibration unit 1103, and k 5 is the equivalent elastic coefficient between the earphone core 1104 and the vibration unit 1103
- R 3 is the equivalent damping between the sensing terminal 1102 and the vibration unit 1103, R 4 is the equivalent damping between the earphone core 1104 and the vibration unit 1103, and f 3 and f 4 are the vibration unit 1103 and the earphone core 1104, respectively Interaction force.
- the equivalent amplitude A 3 of the vibration unit in the system is:
- f 0 represents the unit driving force
- ⁇ represents the vibration frequency
- the factors that affect the frequency response of the bone conduction MP3 player include vibration-generating parts (such as but not limited to vibration units, earphone cores, housings, and interconnection methods, such as m 3 , m 4 , k 5 in formula (3) , R 4, etc.), vibration transmission part (for example, but not limited to, the way of contact with the skin, the properties of the ear hook, such as k 3 , k 4 , R 3, etc. in formula (3)).
- Changing the structure of each part of the speaker and the parameters of the connection between the components for example, changing the clamping force is equivalent to changing the size of k 4
- changing the glue bonding method is equivalent to changing the size of R 4 and k 5
- changing the correlation Material hardness, elasticity, damping, etc. are equivalent to changing the size of k 3 and R 3 , which can change the frequency response and sound quality of bone conduction MP3 players.
- the fixed end 1101 may be a relatively fixed position or a relatively fixed position of the bone conduction MP3 player during vibration (for example, earhook 10), and these points or areas may be regarded as bones
- the fixed end may be composed of specific components, or may be a position determined according to the overall structure of the bone conductive MP3 player.
- the bone conduction MP3 player can be hung, glued, or attracted to the human ear by a specific device, or the structure and shape of the bone conduction MP3 player can be designed so that the bone conduction part can adhere to the human skin.
- the sensor terminal 1102 is a hearing system for the human body to receive sound signals.
- the vibration unit 1103 is a part of the bone conduction MP3 player used to protect, support, and connect the earphone core. It includes a vibration transmission layer or panel that transmits vibration to the user. The part directly or indirectly contacted by the user, and the housing that protects and supports other vibration-generating components.
- the earphone core 1104 is a sound vibration generating device, which may be one or a combination of several of the earphone cores discussed above.
- the transmission relationship K1 connects the fixed end 1101 and the vibration unit 1103, which represents the vibration transmission relationship between the vibration generating part and the fixed end of the bone conduction MP3 player during operation.
- K1 depends on the shape and structure of the bone conduction device.
- the bone conduction MP3 player can be fixed on the human head in the form of a U-shaped headphone holder/headphone lanyard, or it can be installed on helmets, fire masks or other special-purpose masks, glasses and other equipment. Different bone conduction MP3 players The shape and structure of the player will affect the vibration transmission relationship K1.
- the structure of the speaker also includes the physical properties of the material, quality and other components of the bone conduction MP3 player.
- the transfer relationship K2 connects the sensing terminal 402 and the vibration unit 1103.
- K2 depends on the composition of the transmission system, which includes but is not limited to the transmission of sound vibration to the hearing system through the user's tissue.
- the vibration unit 1103 is in contact with human tissue.
- the contact surface on the vibration unit may be a vibration transmission layer or a side surface of the panel. The surface shape, size, and interaction with the human tissue of the contact surface Force etc. will affect the transfer coefficient K2.
- the transmission relationship K3 between the vibration unit 1103 and the earphone core 1104 is determined by the connection properties inside the vibration generator of the bone conduction MP3 player.
- the earphone core and the vibration unit are connected by a rigid or elastic method, or the connection piece is changed between the earphone core and the vibration unit The relative position of will change the transmission efficiency of the earphone core to transmit vibration to the vibration unit, especially the panel, thus affecting the transmission relationship K3.
- K1, K2, K3 are only a representation of the connection methods of different device parts or systems involved in the vibration transmission process, which may include but not limited to physical connection methods, force transmission methods, and sound transmission efficiency Wait.
- K1, K2, and K3 described above can be simple vibration or mechanical transmission methods, or can include complex non-linear transmission systems.
- the transmission relationship can be formed by directly connecting various parts, or can be carried out in a non-contact manner. transfer.
- FIG. 17 is a structural diagram of a composite vibration device of an MP3 player provided by an embodiment of the present application
- FIG. 18 is a structural diagram of an MP3 player and composite vibration device thereof provided by an embodiment of the present application.
- the MP3 player is also provided with a composite vibration device.
- the composite vibration device may be part of the earphone core.
- the composite vibration device in FIG. 17 may be a vibration part that provides sound inside the earphone core 50 in FIG. 2.
- the composite vibration device in the embodiment of the present application is equivalent to the specific embodiment of the transmission relationship K3 of the vibration unit 1103 and the earphone core 1104 in FIG. 16.
- An embodiment of a composite vibration device of a speaker on an MP3 player is shown in FIGS. 17 and 18.
- a vibration transmission plate 1801 and a vibration plate 1802 form a composite vibration device.
- the vibration transmission plate 1801 is provided as a first ring body 1813.
- first support rods 1814 which are converged toward the center are provided, and the central position of the converge is fixed to the center of the vibration plate 1802.
- the center of the vibration plate 1802 is a groove 1820 matching the center of the spoke and the first support rod.
- the vibration plate 1802 is provided with a second ring body 1821 having a radius different from that of the vibration transmitting plate 1801, and three second support rods 1822 different in thickness from the first support rod 1814.
- the first support rod 1814 and the second support rod 1822 are staggered and may be, but not limited to, an angle of 60 degrees.
- Both the first and second supporting rods can be straight rods or set to other shapes that meet specific requirements.
- the number of supporting rods can be set to more than two. They can be arranged symmetrically or asymmetrically to meet economic and practical effects. Requirements.
- the vibration-transmitting piece 1801 has a thin thickness and can increase the elastic force.
- the vibration-transmitting piece 1801 is caught in the center of the groove 1820 of the vibration plate 1802.
- a voice coil 1808 is adhered to the lower side of the second circular ring body 1821 of the vibration plate 1802.
- the composite vibration device further includes a bottom plate 1812, a ring magnet 1810 is provided on the bottom plate 1812, and an inner magnet 1811 is concentrically arranged in the ring magnet 1810.
- An inner magnetic conducting plate 1809 is provided on the top surface of the inner magnet 1811, and an annular magnetic conducting plate 1807 is provided on the ring magnet 1810, and a washer 1806 is fixedly arranged above the annular magnetic conducting plate 1807.
- the first ring body 1813 of the vibration transmission piece 1801 is fixedly connected to the washer 1806.
- the entire composite vibration device is connected to the outside through a panel 1830, which is fixedly connected to the central position of the vibration of the vibration transmission plate 1801, and is snap-fixed at the center position of the vibration transmission plate 1801 and the vibration plate 1802. Using the composite vibration device composed of the vibration plate and the vibration transmission plate, the frequency response shown in FIG. 18 can be obtained, and two resonance peaks are generated.
- the resonance peaks can be caused to appear at different positions, for example, the low-frequency resonance peaks can appear at positions shifted at lower frequencies, and/or the high-frequency resonance peaks can appear at more positions. High frequency location.
- the stiffness coefficient of the vibration plate is greater than the stiffness coefficient of the vibration transmission plate, the vibration plate generates a high-frequency resonance peak among two resonance peaks, and the vibration transmission plate generates a low-frequency resonance peak among the two resonance peaks.
- the range of these resonance peaks may be set within the frequency range of the sound audible by the human ear, or may not be among them.
- neither resonance peak is within the frequency range of the sound audible by the human ear; more preferably , One resonance peak is within the frequency range of the human ear audible sound, the other resonance peak is outside the frequency range of the human ear audible sound; more preferably, both resonance peaks are audible in the human ear Within the frequency range of the received sound; and even more preferably, both resonance peaks are within the frequency range of the sound audible to the human ear, and the peak frequency is between 80 Hz-18000 Hz; still more preferably, the two The resonance peaks are within the frequency range of the sound audible to the human ear, and the peak value is between 200 Hz and 15000 Hz; more preferably, both resonance peaks are within the frequency range of the sound available to the human ear, and the The peak value is between 500 Hz and 12000 Hz; even more preferably, both resonance peaks are within the frequency range of sound available to the human ear, and the peak value is between 800 Hz and 11000 Hz.
- the frequency of the peaks of the resonant peaks should preferably be at a certain distance, for example, the peaks of the two resonance peaks differ by at least 500 Hz; preferably, the peaks of the two resonance peaks differ by at least 1000 Hz; more preferably, the peaks of the two resonance peaks differ by At least 2000 Hz; still more preferably, the peaks of the two resonance peaks differ by at least 5000 Hz.
- both resonance peaks can be within the audible range of the human ear, and the peak frequencies of the resonance peaks differ by at least 500 Hz; preferably, both resonance peaks can be within the audible range of the human ear, The peaks of the two resonance peaks differ by at least 1000 Hz; still further preferably, the two resonance peaks can both be within the audible range of the human ear, the peaks of the two resonance peaks differ by at least 2000 Hz; and still more preferably, the two resonance peaks It can be both within the audible range of the human ear, and the peaks of the two resonance peaks differ by at least 3000 Hz; it can be further preferred that the two resonance peaks can both be within the audible range of the human ear, and the peak values of the two resonance peaks differ.
- One of the two resonance peaks can be within the audible range of the human ear and the other is outside the audible range of the human ear, and the peak frequencies of the two resonance peaks differ by at least 500 Hz; preferably, one resonance peak is audible in the human ear Within the range, the other is outside the audible range of the human ear, and the peak frequencies of the two resonance peaks differ by at least 1000 Hz; more preferably, one resonance peak is within the audible range of the human ear, and the other is audible to the human ear Outside the range, and the peak frequencies of the two resonance peaks differ by at least 2000 Hz; further preferably, one resonance peak is within the audible range of the human ear, the other is outside the audible range of the human ear, and the peak values of the two resonance peaks
- the frequency differs by at least 3000 Hz; more preferably, one resonance peak is within the audible range of the human ear and the other is outside the audible range of the human ear,
- Both resonance peaks may be between frequencies 5Hz-30000Hz, and the peak frequencies of the two resonance peaks differ by at least 400Hz; preferably, both resonance peaks may be between frequencies 5Hz-30000Hz, and the peak values of the two resonance peaks
- the frequency differs by at least 1000 Hz; more preferably, both resonance peaks can be between frequencies 5 Hz-30000 Hz, and the peak frequencies of the two resonance peaks differ by at least 2000 Hz; further preferably, both resonance peaks can both be at frequencies 5 Hz-30000 Hz And the peak frequencies of the two resonance peaks differ by at least 3000 Hz; still more preferably, the two resonance peaks may be between the frequencies of 5 Hz and 30,000 Hz, and the peak frequencies of the two resonance peaks differ by at least 4000 Hz.
- Both resonance peaks may be between frequencies 20Hz-20000Hz, and the peak frequencies of the two resonance peaks differ by at least 400Hz; preferably, both resonance peaks may be between frequencies 20Hz-20000Hz, and the peak values of the two resonance peaks
- the frequency differs by at least 1000 Hz; more preferably, both resonance peaks can be between frequencies 20 Hz-20000 Hz, and the peak frequencies of the two resonance peaks differ by at least 2000 Hz; further preferably, both resonance peaks can both be at frequencies 20 Hz-20000 Hz And the peak frequencies of the two resonance peaks differ by at least 3000 Hz; still more preferably, the two resonance peaks can be both at a frequency of 20 Hz to 20,000 Hz, and the peak frequencies of the two resonance peaks differ by at least 4000 Hz.
- Both resonance peaks may be between frequencies 100Hz-18000Hz, and the peak frequencies of the two resonance peaks differ by at least 400Hz; preferably, both resonance peaks may be between frequencies 100Hz-18000Hz, and the peak values of the two resonance peaks
- the frequency differs by at least 1000 Hz; more preferably, both resonance peaks can be between frequencies 100 Hz-18000 Hz, and the peak frequencies of the two resonance peaks differ by at least 2000 Hz; further preferably, both resonance peaks can be between frequencies 100 Hz-18000 Hz And the peak frequencies of the two resonance peaks differ by at least 3000 Hz; still more preferably, the two resonance peaks may be between the frequencies of 100 Hz-18000 Hz, and the peak frequencies of the two resonance peaks differ by at least 4000 Hz.
- Both resonance peaks may be between frequencies 200 Hz-12000 Hz, and the peak frequencies of the two resonance peaks differ by at least 400 Hz; preferably, both resonance peaks may be between frequencies 200 Hz-12000 Hz, and the peak values of the two resonance peaks
- the frequency differs by at least 1000 Hz; more preferably, both resonance peaks can be between frequencies 200 Hz-12000 Hz, and the peak frequencies of the two resonance peaks differ by at least 2000 Hz; further preferably, the two resonance peaks can both be at frequencies 200 Hz-12000 Hz And the peak frequencies of the two resonance peaks differ by at least 3000 Hz; still more preferably, the two resonance peaks may be between frequencies of 200 Hz-12000 Hz, and the peak frequencies of the two resonance peaks differ by at least 4000 Hz.
- Both resonance peaks may be between frequencies 500 Hz-10000 Hz, and the peak frequencies of the two resonance peaks differ by at least 400 Hz; preferably, both resonance peaks may be between frequencies 500 Hz-10000 Hz, and the peak values of the two resonance peaks
- the frequency differs by at least 1000 Hz; more preferably, both resonance peaks can be between frequencies 500 Hz-10000 Hz, and the peak frequencies of the two resonance peaks differ by at least 2000 Hz; further preferably, both resonance peaks can be between frequencies 500 Hz-10000 Hz And the peak frequencies of the two resonance peaks differ by at least 3000 Hz; still more preferably, the two resonance peaks may be between frequencies 500 Hz-10000 Hz, and the peak frequencies of the two resonance peaks differ by at least 4000 Hz.
- multiple vibration transmission plates and vibration plates can be provided to form a multi-layer vibration structure, corresponding to different frequency response ranges, to achieve high-quality speaker vibration in the full frequency range and full frequency response, or Make the frequency response curve meet the requirements of use in some specific frequency range.
- one or more vibrating plates and vibrating plates may be selected as the earphone core with a resonance frequency in the range of 100 Hz-10000 Hz.
- the composite vibration device includes a vibration plate 2002, a first vibration transmission sheet 2003 and The second vibration transmission sheet 2001.
- the first vibration-transmitting piece 2003 fixes the vibration plate 2002 and the second vibration-transmitting piece 2001 to the housing 2019, and the composite vibration device composed of the vibration plate 2002, the first vibration-transmitting piece 2003 and the second vibration-transmitting piece 2001 can generate many The two resonance peaks produce a flatter frequency response curve within the audible range of the hearing system, thereby improving the sound quality of the speaker.
- the triple compound vibration system with the first vibration-transmitting plate generates more resonance peaks than the compound vibration system without the first vibration-transmitting plate.
- the triple compound vibration system can generate at least three resonance peaks; more preferably, at least one resonance peak is not within the audible range of the human ear; more preferably, all resonance peaks are audible in the human ear Within the range of; more preferably, the resonance peaks are within the audible range of the human ear, and its peak frequency is not higher than 18000Hz; further preferably, the resonance peaks are in the audible sound of the human ear Within the frequency range, and its peak value is between 100Hz-15000Hz; more preferably, the resonance peak is within the frequency range of the sound available to the human ear, and its peak value is between 200Hz-12000Hz; still more preferably, resonance The peaks are all within the frequency range of the sound that can be heard by the human ear, and the peaks are between 500 Hz and 11000 Hz.
- the frequency of the peaks of the resonant peaks can preferably have a certain gap, for example, there are at least two resonance peaks that differ by at least 200 Hz; preferably, there are at least two resonance peaks that differ by at least 500 Hz; more preferably, there are at least two The peaks of the resonance peaks differ by at least 1000 Hz; still further preferably, the peaks of at least two resonance peaks differ by at least 2000 Hz; still further preferably, the peaks of at least two resonance peaks differ by at least 5000 Hz.
- the resonance peaks can all be within the audible range of the human ear, and there are at least two resonance peaks whose peak frequencies differ by at least 500 Hz; preferably, the resonance peaks can all be within the audible range of the human ear, At least two resonance peaks differ by at least 1000 Hz; more preferably, the resonance peaks can all be within the audible range of the human ear, and at least two resonance peaks differ by at least 1000 Hz; still further preferably, the resonance peaks can both Within the audible range of the human ear, there are at least two resonance peaks that differ by at least 2000 Hz; and even more preferably, the resonance peaks can all be within the audible range of the human ear, and there are at least two resonance peaks that differ by at least 3000 Hz; It can be further preferred that the resonance peaks can all be within the audible range of the human ear, and there are at least two resonance peaks that differ by at least 4000 Hz.
- Two of the resonance peaks are within the audible range of the human ear, and the other is outside the audible range of the human ear, and the peak frequencies of at least two resonance peaks differ by at least 500 Hz; preferably, the two resonance peaks are in the human Within the audible range of the ear, another resonance peak is outside the audible range of the human ear, and there are at least two resonance peaks with a peak frequency difference of at least 1000 Hz; more preferably, the two resonance peaks are within the audible range of the human ear , The other is outside the audible range of the human ear, and the peak frequency of at least two resonance peaks differs by at least 2000 Hz; further preferably, the two resonance peaks are within the audible range of the human ear, and the other is audible to the human ear Outside the range, and at least two resonance peaks differ in peak frequency by at least 3000 Hz; more preferably, the two resonance peaks are within the audible range of the human ear, and the
- One of the resonance peaks is within the audible range of the human ear, and the other two are outside the audible range of the human ear, and there are at least two resonance peaks with a peak frequency difference of at least 500 Hz; preferably, one resonance peak is in the human ear Within the audible range, the other two resonance peaks are outside the audible range of the human ear, and there are at least two resonance peaks with a peak frequency difference of at least 1000 Hz; more preferably, one resonance peak is within the audible range of the human ear, The other two are outside the audible range of the human ear, and the peak frequencies of at least two resonance peaks differ by at least 2000 Hz; further preferably, one resonance peak is within the audible range of the human ear, and the other two are audible to the human ear Outside the range, and the peak frequency of at least two resonance peaks differ by at least 3000 Hz; more preferably, one resonance peak is within the audible range of the human ear, and the other two
- the resonance peaks may all be between frequencies 5Hz-30000Hz, and the peak frequencies of at least two resonance peaks differ by at least 400Hz; preferably, the resonance peaks may all be between frequencies 5Hz-30000Hz, and there are at least two resonance peak peaks
- the frequency difference is at least 1000 Hz; more preferably, the resonance peaks can all be between 5 Hz and 30,000 Hz, and there are at least two resonance peaks with a peak frequency difference of at least 2000 Hz; further preferably, the resonance peaks can all be between 5 Hz and 30,000 Hz , And the peak frequency of at least two resonance peaks differs by at least 3000 Hz; more preferably, the resonance peaks may all be between frequencies of 5 Hz to 30,000 Hz, and the peak frequency of at least two resonance peaks differ by at least 4000 Hz.
- the resonance peaks can all be between frequencies 20Hz-20000Hz, and the peak frequencies of at least two resonance peaks differ by at least 400Hz; preferably, the resonance peaks can all be between frequencies 20Hz-20000Hz, and there are at least two resonance peak peaks
- the frequency difference is at least 1000 Hz; more preferably, the resonance peaks can all be between the frequency of 20 Hz and 20,000 Hz, and there are at least two resonance peaks with a peak frequency difference of at least 2000 Hz; further preferably, the resonance peaks can all be between the frequency of 20 Hz and 20,000 Hz , And the peak frequency of at least two resonance peaks differs by at least 3000 Hz; more preferably, the resonance peaks may all be between the frequency of 20 Hz and 20,000 Hz, and the peak frequency of at least two resonance peaks differ by at least 4000 Hz.
- the resonance peaks may all be between the frequencies of 100 Hz-18000 Hz, and the peak frequencies of at least two resonance peaks differ by at least 400 Hz; preferably, the resonance peaks may all be between the frequencies of 100 Hz-18000 Hz, and there are at least two resonance peak peaks
- the frequency difference is at least 1000 Hz; more preferably, the resonance peaks can all be between 100 Hz and 18000 Hz, and there are at least two resonance peaks with a peak frequency difference of at least 2000 Hz; further preferably, the resonance peaks can all be between 100 Hz and 18000 Hz ,
- the peak frequencies of at least two resonance peaks differ by at least 3000 Hz; more preferably, the resonance peaks can all be between frequencies of 100 Hz-18000 Hz, and the peak frequencies of at least two resonance peaks differ by at least 4000 Hz.
- the resonance peaks may all be between frequencies 200Hz-12000Hz, and the peak frequencies of at least two resonance peaks differ by at least 400Hz; preferably, the resonance peaks may all be between frequencies 200Hz-12000Hz, and there are at least two resonance peak peaks
- the frequency difference is at least 1000 Hz; more preferably, the resonance peaks can all be between frequencies 200 Hz-12000 Hz, and there are at least two resonance peaks with a peak frequency difference of at least 2000 Hz; further preferably, the resonance peaks can all be between frequencies 200 Hz-12000 Hz , And the peak frequency of at least two resonance peaks differs by at least 3000 Hz; more preferably, the resonance peaks can all be between frequencies of 200 Hz-12000 Hz, and the peak frequency of at least two resonance peaks differ by at least 4000 Hz.
- the resonance peaks may all be between frequencies 500Hz-10000Hz, and the peak frequencies of at least two resonance peaks differ by at least 400Hz; preferably, the resonance peaks may all be between frequencies 500Hz-10000Hz, and there are at least two resonance peak peaks
- the frequency difference is at least 1000 Hz; more preferably, the resonance peaks can all be between frequencies 500 Hz-10000 Hz, and there are at least two resonance peaks with a peak frequency difference of at least 2000 Hz; further preferably, the resonance peaks can all be between frequencies 500 Hz-10000 Hz , And the peak frequency of at least two resonance peaks differs by at least 3000 Hz; more preferably, the resonance peaks may all be between frequencies of 500 Hz-10000 Hz, and the peak frequency of at least two resonance peaks differ by at least 4000 Hz.
- the frequency response shown in FIG. 21 can be obtained, and three distinct resonance peaks are generated.
- the sensitivity of the speaker's frequency response in the low frequency range (about 600 Hz) is greatly improved, and the sound quality is improved.
- the resonance peak can be moved to obtain a more ideal frequency response.
- the first vibration transmitting plate is an elastic plate.
- the elasticity is determined by the material, thickness and structure of the first vibration-transmitting sheet.
- Materials of the first vibrating plate such as, but not limited to, steel (such as but not limited to stainless steel, carbon steel, etc.), light alloy (such as but not limited to aluminum alloy, beryllium copper, magnesium alloy, titanium alloy, etc.), plastic (For example, but not limited to polymer polyethylene, blown nylon, engineering plastics, etc.), it can also be other single or composite materials that can achieve the same performance.
- the thickness of the first vibrating plate is not less than 0.005mm, preferably, the thickness is 0.005mm-3mm, more preferably, the thickness is 0.01mm-2mm, still more preferably, the thickness is 0.01mm-1mm, further preferably, the thickness It is 0.02mm-0.5mm.
- the structure of the first vibrating plate can be set to be ring-shaped.
- the first vibration-transmitting plate includes at least one square ring.
- the structure of the first vibration-transmitting sheet may also be set in a sheet shape.
- a hollow pattern is provided on the surface, and the area of the hollow pattern is not less than the area without hollow.
- the materials, thicknesses, and structures in the above description can be combined into different vibration transmission plates.
- the ring-shaped vibration transmitting plates have different thickness distributions.
- the thickness of the strut is equal to the thickness of the ring, further preferably, the thickness of the strut is greater than the thickness of the ring, and further preferably, the thickness of the inner ring is greater than the thickness of the outer ring .
- FIG. 22 is a vibration generation in an MP3 player according to some embodiments of the present application. Partial structure diagram.
- the earphone core includes a magnetic circuit system composed of a magnetic conductive plate 2210, a magnet 2211 and a magnetic conductive body 2212, a vibration plate 2214, a coil 2215, a first vibration transmitting plate 2216 and a second vibration transmitting plate 2217.
- the panel 2213 (that is, the side of the movement case close to the user) protrudes from the housing 2219 and is bonded to the vibrating plate 2214 by glue.
- the first vibrating plate 2216 connects and fixes the earphone core to the housing 2219 to form a suspension structure.
- the triple vibration system composed of the vibration plate 2214, the first vibration transmission plate 2216 and the second vibration transmission plate 2217 can produce a flatter frequency response curve, thereby improving bone conduction MP3 playback The sound quality of the device.
- the first vibration transmitting piece 2216 elastically connects the earphone core to the housing 2219, which can reduce the vibration transmitted from the earphone core to the housing, thereby effectively reducing the sound leakage caused by the vibration of the housing, and also reducing the vibration of the housing to bone conduction MP3 The effect of the sound quality of the player.
- Fig. 23 shows the response curves of the vibration intensity of the enclosure and the vibration intensity of the panel with frequency.
- the thick line shows the frequency response of the vibration generating part after using the first vibrating plate 2216
- the thin line shows the frequency response of the vibration generating part after not using the first vibrating plate 2216. It can be seen that in the frequency range above 500 Hz, the vibration of the shell of the bone conduction MP3 player without the first vibration-transmitting sheet 2216 is significantly greater than the vibration of the shell of the bone conduction MP3 player with the first vibration-transmitting sheet 2216.
- Fig. 24 shows a comparison of sound leakage in the case where the first vibration transmitting plate 2216 is included and the first vibration transmitting plate 2216 is not included.
- the device containing the first vibration-transmitting piece 2216 has a lower sound leakage in the middle frequency range (for example, about 1000 Hz) than the device not containing the first vibration-transmitting piece 2216 in the corresponding frequency range. It can be seen from this that the use of the first vibration-transmitting piece between the panel and the housing can effectively reduce the vibration of the housing, thereby reducing sound leakage.
- the first vibration-transmitting sheet may include, but is not limited to, stainless steel, beryllium copper, plastic, and polycarbonate materials, with a thickness in the range of 0.01 mm-1 mm.
- the first vibration transmitting plate is not limited to one or two rings, but may be more than two.
- the shapes of the multiple elements of the first vibration-transmitting piece may be the same or different (for example, a ring and/or a square ring). Such deformations are within the scope of protection of this application.
- the transmission relationship K2 between the sensing terminal 1102 and the vibration unit 1103 also affects the frequency response of the bone conduction MP3 player system.
- the sound heard by the human ear depends on the energy received by the cochlea, which is affected by different physical quantities in the transmission process and can be expressed by the following formula:
- P is proportional to the energy received by the cochlea
- S is the contact area of the contact surface 502a and the human face
- ⁇ is a dimensional conversion coefficient
- f(a, R) represents the acceleration a of the contact surface and the contact surface and The effect of the tightness of skin contact R on energy transfer
- L is the impedance of mechanical wave transfer at any contact point, that is, the transfer impedance per unit area.
- the vibration transmission efficiency of the bone conduction MP3 player system is related to L.
- the frequency response curve of the bone conduction MP3 player system is the frequency response curve of each point on the contact surface Overlay.
- the factors that affect the impedance include the size, shape, roughness, force size or force distribution of the energy transfer area. For example, by changing the structure and shape of the vibration unit to change the sound transmission effect, thereby changing the sound quality of the bone conduction speaker. Just as an example, changing the corresponding physical characteristics of the contact surface of the vibration unit can achieve the effect of changing the sound transmission.
- FIG. 25 is a schematic diagram of a contact surface of a vibration unit of an MP3 player in an embodiment of the present application.
- the contact surface of the vibration unit in FIG. 25 corresponds to the outer wall in contact with the human body at the movement housing 20 in FIG. 2.
- this embodiment is a specific embodiment of the transmission relationship K2 between the sensing terminal 1102 and the vibration unit 1103.
- a well-designed contact surface is provided with a gradient structure, and the gradient structure refers to an area where the height of the contact surface changes.
- the gradient structure may be a protrusion/concave or stepped structure existing on the outside of the contact surface (the side that is in contact with the user), or a protrusion/present on the inside of the contact surface (the side facing away from the user) Recessed or stepped structures.
- the contact surface of the vibration unit can be attached to any position of the user's head, such as the top of the head, forehead, cheeks, temples, pinna, auricle, etc.
- the contact surface 1601 (outside of the contact surface) has protrusions or depressions (not shown in FIG. 25).
- the convex or concave part comes into contact with the user, changing the pressure when contacting the human face at different positions on the contact surface 1601.
- the convex part is in closer contact with the human face, and the skin and subcutaneous tissue in contact with it are under greater pressure than other parts; accordingly, the skin and subcutaneous tissue in contact with the concave part are under less pressure than other parts.
- the clamping force on the skin at the three points A, B and C is FC>FA>FB.
- the clamping force at point B is 0, that is, point B is not in contact with the skin.
- Human face skin and subcutaneous tissue show different impedance and response to sound under different pressures.
- the part with high pressure has a low impedance rate and has a high-pass filter characteristic for sound waves.
- the part with a small pressure has a high impedance rate and a low-pass filter characteristic.
- the impedance characteristic L of each part of the contact surface 1601 is different. According to formula (4), the response of different parts to the frequency of sound transmission is different.
- the effect of sound transmission through the full contact surface is equivalent to the sum of the sound transmission of each part, and finally the sound is transmitted to the brain
- the material and thickness of the contact surface 1601 will also affect the transmission of sound, thereby affecting the sound quality effect. For example, when the material of the contact surface is soft, the sound wave transmission effect in the low frequency range is better than that in the high frequency range, and when the material of the contact surface is hard, the sound wave transmission effect in the high frequency range is better than that in the low frequency range.
- Figure 26 shows the frequency response of MP3 players with different contact surfaces.
- the dotted line corresponds to the frequency response of an MP3 player with a raised structure on the contact surface
- the solid line corresponds to the frequency response of an MP3 player with no raised structure on the contact surface.
- the vibration of the structure without protrusions is significantly weakened relative to the vibration of the structure with protrusions, forming a "deep pit" on the frequency response curve, which is expressed as Less than ideal frequency response, which affects the sound quality of the speaker.
- FIG. 26 is only an explanation for specific examples.
- various modifications and changes can be made to the structure and components of the MP3 player. Thereby obtaining different frequency response effects.
- the shape and structure of the contact surface 1601 are not limited to the above description, but may also meet other specific requirements.
- the convex or concave portions on the contact surface may be distributed on the edge of the contact surface, or may be distributed in the middle of the contact surface.
- the contact surface may include one or more convex or concave portions, and the convex and concave portions may be distributed on the contact surface at the same time.
- the material of the convex or concave part of the contact surface can be different from the material of the contact surface, it can be flexible, rigid, or more suitable for generating a specific pressure gradient; it can be a memory material or It is a non-memory material; it can be a single material or a composite material.
- the structural figures of the convex or concave portions of the contact surface include, but are not limited to, axisymmetric figures, central symmetric figures, rotationally symmetric figures, asymmetric figures, etc.
- the structure pattern of the convex or concave part of the contact surface may be one kind of pattern, or two or more kinds of combinations.
- the surface of the contact surface includes, but is not limited to, having a certain smoothness, roughness, waviness, etc.
- the position distribution of the convex or concave portions of the contact surface includes, but is not limited to, axisymmetric, center symmetric, rotationally symmetric, asymmetrical distribution, and the like.
- the convex or concave portion of the contact surface may be at the edge of the contact surface or may be distributed inside the contact surface.
- FIG. 27 is a schematic diagram of a contact surface of a vibration unit of an MP3 player provided by some embodiments of the present application. As shown in FIG. 27, various exemplary contact surface structures are shown. Among them, shown in 1704 in the figure is an example in which a plurality of protrusions with similar shapes and structures are included on the contact surface.
- the protrusions can be made of the same or similar materials as other parts of the panel, or they can be made of different materials.
- the protrusion may be composed of a memory material and a vibration transmission layer material, wherein the proportion of the memory material is not less than 10%, preferably, the proportion of the memory material in the protrusion is not less than 50%.
- the area of a single protrusion accounts for 1%-80% of the total area, preferably, the ratio of the total area is 5%-70%, and more preferably, the ratio of the total area is 8%-40%.
- the total area of all protrusions accounts for 5%-80% of the total area, preferably, the ratio is 10%-60%.
- the shape of the protrusions can be circular, elliptical, triangular, rectangular, trapezoidal, irregular polygonal, or other similar figures.
- the structure of the protrusions can be symmetric or asymmetric, and the position distribution of the protrusions can also be Symmetrical or asymmetrical, the number of raised portions may be one or more, the height of the raised portions may be the same or different, and the height and distribution of the raised portions may form a certain gradient.
- the structure shown in 1705 in the figure is an example in which the structure of the convex portion of the contact surface is a combination of two or more patterns, and the number of protrusions in different patterns may be one or more.
- the two or more convex shapes may be any two or more of a circle, ellipse, triangle, rectangle, trapezoid, irregular polygon, or other similar figures.
- the material, number, area, symmetry, etc. of the protrusions are similar to those in FIG. 1704.
- the convex portions of the contact surface are distributed on the edges and inside of the contact surface, and the number of the convex portions is not limited to that shown in the figure.
- the number of protrusions located at the edge of the contact surface accounts for 1%-80% of all the number of protrusions, preferably, the ratio is 5%-70%, more preferably, the ratio is 10%-50%, further preferably, the The ratio is 30%-40%.
- the material, number, area, shape, symmetry, etc. of the protrusions are similar to those in FIG. 1704.
- the 1707 in the figure is a structure diagram of the concave part of the contact surface.
- the structure of the concave part can be symmetric or asymmetric, the position distribution of the concave part can also be symmetric or asymmetric, the number of concave parts can be One or more, the shape of the concave portion may be the same or different, and the concave portion may be hollow.
- the area of a single depression accounts for 1%-80% of the total area, preferably, the ratio of the total area is 5%-70%, and more preferably, the ratio of the total area is 8%-40%.
- the total area of all the depressions accounts for 5%-80% of the total area, preferably, the ratio is 10%-60%.
- the concave shape may be circular, elliptical, triangular, rectangular, trapezoidal, irregular polygonal, or other similar figures.
- 1708 in the figure is an example in which both convex portions and concave portions exist on the contact surface, and the number of convex portions and concave portions is not limited to one or more.
- the ratio of the number of depressions to the number of protrusions is 0.1-100, preferably the ratio is 1-80, more preferably the ratio is 5-60, further preferably the ratio is 10-20.
- the material, area, shape, symmetry, etc. of a single protrusion/depression are similar to those in FIG. 1704.
- the corrugation is formed by two or more protrusions/recesses or a combination of two.
- the distance between adjacent protrusions/recesses is equal, more preferably, the distance between protrusions/recesses is equal arrangement.
- 1710 is an example in which a large-area protrusion exists on the contact surface.
- the area of the protrusion accounts for 30%-80% of the total area of the contact surface.
- a part of the edge of the protrusion and a part of the edge of the contact surface are substantially in contact with each other.
- 1711 is a contact surface having a first protrusion with a larger area, and a second protrusion with a smaller area on the first protrusion.
- the protrusions of a larger area occupy 30%-80% of the total area of the contact surface, and the protrusions of a smaller area account for 1%-30% of the total area of the contact surface.
- the ratio is 5%-20%.
- the smaller area accounts for 5%-80% of the larger area, preferably, the ratio is 10%-30%.
- the contact surface structure of the MP3 player is only a specific example, and should not be regarded as the only feasible implementation. Obviously, for professionals in this field, after understanding the basic principle that the structure of the MP3 player's contact surface will affect the sound quality of the MP3 player, it may be possible to implement the specific interface of the MP3 player without departing from this principle. Various modifications and changes in the form and details of the methods, but these modifications and changes are still within the scope of the above description.
- the number of protrusions or depressions is not limited to that shown in FIG. 27, and the above-mentioned protrusions, depressions, or contact surface surface patterns may be modified to some extent, and these modifications are still within the scope of protection described above .
- the contact surface of at least one or more vibration units contained in the MP3 player can use the same or different shapes and materials as described above. The vibration effects transmitted on different contact surfaces will also vary with the nature of the contact surface. Get different sound quality effects.
- Fig. 28 is a front view and a side view of a panel connected to a vibration transmission layer
- Fig. 29 is a front view and a side view of a panel connected to a vibration transmission layer.
- the vibration transmission layer may be provided at the outer surface of the side wall of the movement case 20 in contact with the human body.
- the vibration transmission layer in this embodiment is to change the physical characteristics of the contact surface of the vibration unit to change the specific expression of the sound transmission effect. Different regions on the vibration transmission layer have different effects on vibration transmission.
- the first contact surface area is not attached to the panel, and the second contact surface area is attached to the panel; more preferably, the vibration transmission layer
- the clamping force on the first contact surface area is smaller than the clamping force on the second contact surface area (the clamping force here refers to the contact surface between the vibration unit and the user) Pressure); further preferably, the first contact surface area does not directly contact the user, and the second contact surface area directly contacts the user and transmits vibration.
- the area of the first contact area is different from the area of the second contact area.
- the area of the first contact area is smaller than the area of the second contact area.
- the area of the first contact area is small. Holes to further reduce the area of the first contact area; the outer surface of the vibration transmission layer (that is, the face facing the user) may be flat or uneven, preferably, the first contact area and the second contact area
- the regions are not on the same plane; more preferably, the second contact surface region is higher than the first contact surface region; further preferably, the second contact surface region and the first contact surface region constitute a stepped structure; still more preferably, the first contact The surface area contacts the user, and the second contact surface area does not contact the user.
- the constituent materials of the first contact surface region and the second contact surface region may be the same or different, and may be one or a combination of one or more of the vibration transmission layer materials described above.
- the vibration transmission layer may not be necessary, the panel may directly contact the user, and different contact surface areas may be provided on the panel, and the different contact surface areas have similarities to the first and second contact surface areas described above Nature.
- a third contact surface area may be provided on the contact surface, and a structure different from the first contact surface area and the second contact surface area may be provided on the third contact surface area, and these structures can reduce the vibration of the housing and suppress leakage Sound, improve the frequency response curve of the vibration unit and other aspects to obtain certain effects.
- the panel 501 and the vibration transmission layer 503 are bonded by glue 502.
- the glue is located at both ends of the panel 501, and the panel 501 is formed by the vibration transmission layer 503 and the housing 504.
- the projection of the panel 501 on the vibration transmission layer 503 is the first contact surface area, and the area around the first contact surface area is the second contact surface area.
- the earphone core includes a magnetic circuit system composed of a magnetic conductive plate 2310, a magnet 2311 and a magnetic conductive material 2312, a vibrating plate 2314, a coil 2315, a first vibrating plate 2316, and a second Vibration piece 2317 and washer 2318.
- the panel 2313 protrudes from the case 2319 and the vibrating piece 2314 by glue, and the first vibrating piece 2316 connects and fixes the earphone core to the case 2319 to form a suspension structure.
- a vibration transmission layer 2320 (for example, but not limited to silicone) is added on the panel 2313, and the vibration transmission layer 2320 can generate a certain deformation to adapt to the shape of the skin.
- the portion of the vibration transmission layer 2320 that contacts the panel 2313 is higher than the portion of the vibration transmission layer 2320 that does not contact the panel 2313, forming a stepped structure.
- One or more small holes 2321 are designed in the portion where the vibration transmission layer 2320 is not in contact with the panel 2313 (the portion where the vibration transmission layer 2320 does not protrude in FIG. 30). Designing small holes in the vibration transmission layer can reduce sound leakage: the connection between the panel 2313 and the housing 2319 through the vibration transmission layer 2320 is weakened, and the vibration transmitted from the panel 2313 to the housing 2319 through the vibration transmission layer 2320 is reduced, thereby reducing the vibration brought by the housing 2319.
- the sound transmission of the vibration transmission layer 2320 is provided with small holes 2321 after the projected area is reduced, the air that can be driven is reduced, and the sound leakage caused by the air vibration is reduced; the vibration transmission layer 2320 is provided with a small hole 2321 After that, the air vibration inside the housing is guided out of the housing, and cancels out with the air vibration caused by the housing 2319, reducing the sound leakage. It should be noted that since the small hole 2321 can lead out the sound wave in the housing of the composite vibration device and superimpose it with the sound leakage sound wave to reduce the sound leakage, the small hole can also be called a sound introduction hole.
- the panel protrudes from the MP3 player housing, and the first vibrating plate is used to connect the panel to the MP3 player housing, the coupling between the panel and the housing is greatly reduced, and the first The vibration-transmitting sheet can provide a certain deformation, so that the panel has a higher degree of freedom in fitting with the user, and can better adapt to the complex fitting surface.
- the first vibration-transmitting sheet can make the panel produce relative to the housing Tilt at an angle. Preferably, the angle of inclination does not exceed 5°.
- the vibration efficiency of the MP3 player varies with the state of attachment. Good fit state has higher vibration transmission efficiency. As shown in FIG. 31, the thick line shows the vibration transmission efficiency in the state of good bonding, and the thin line shows the vibration transmission efficiency in the state of poor bonding. It can be seen that the vibration transmission efficiency in the better bonding state is more high.
- FIG. 32 is a structural diagram of a vibration generating part of an MP3 player provided by some embodiments of the present application.
- the earphone core includes a magnetic circuit system composed of a magnetic permeable plate 2520, a magnet 2511 and a magnetic permeable body 2512, a vibration plate 2514, a coil 2515, the first transmission Vibration piece 2516, second vibration transmission piece 2517 and washer 2518.
- the panel 2513 protrudes from the casing 2519, and is bonded with the vibration piece 2514 by glue.
- the first vibration transmission piece 2516 connects and fixes the earphone core to the casing 2519 to form a suspension structure.
- This embodiment differs from the embodiment provided in FIG. 30 described above in that: adding a peripheral edge to the edge of the casing, during the contact between the casing and the skin, the peripheral edge can make the force distribution more uniform and increase the MP3 player Wearing comfort.
- the force of the skin acting on the panel 2513 reduces the distance d between the panel 2513 and the surrounding edge 2510.
- the sound quality of the MP3 player is affected by the physical properties of the MP3 player itself, the vibration transmission relationship between the components, the vibration transmission relationship between the speaker and the outside world, and the efficiency of the vibration transmission system in transmitting vibration. Influencing factors.
- the components of the speaker itself include components that generate vibration (such as but not limited to the earphone core), components that fix the MP3 player (such as but not limited to the ear hook 10), components that transmit vibration (such as but not limited to the panel, vibration transmission layer Wait).
- the vibration transmission relationship between the components and the vibration transmission relationship between the speaker and the outside world are determined by the contact mode (such as but not limited to clamping force, contact area, contact shape, etc.) between the speaker and the user.
- the vibration transmission layer may not be limited to one layer shown in FIG. 30, but may also be multiple layers.
- the specific number of layers may be determined according to the actual situation. In this application, the specific number of vibration transmission layers is not specified here. limited.
- the stepped structure formed between the vibration transmission layer and the panel is not limited to one in FIG. 30. When there are multiple vibration transmission layers, each vibration transmission layer and the panel and between each vibration transmission layer may be Form a step structure. Such deformations are within the scope of protection of this application.
- FIG. 33 is a structural diagram of a key module of an MP3 player according to some embodiments of the present application.
- the MP3 player may further include a button module.
- the key module may include a power switch key, a function shortcut key, and a menu shortcut key.
- the function shortcut keys may include a volume up key and a volume down key for adjusting the sound size, a fast forward key and a fast backward key for adjusting the progress of the sound file, and a control for connecting the MP3 player to an external device (For example, Bluetooth connection) button.
- the key module may include two types of physical keys and virtual keys.
- the key when the key module exists in the form of a physical key, the key may be disposed at the auxiliary side wall 34 and/or the first side wall 30a of the circuit housing.
- the auxiliary side wall 34 and the first side wall 30a are not in contact with human skin, and are exposed to the outside, so as to facilitate the user's wearing and operation of various buttons.
- the end surface of each key in the key module may be provided with an identification corresponding to its function.
- the logo may include text (for example, Chinese and English), and symbols (for example, the volume plus key is marked with "+" and the volume minus key is marked with "-").
- the logo may be provided at the button by means of laser printing, screen printing, pad printing method, laser filler, sublimation method, hollow-out text method, and the like.
- the logo on the key can also be provided on the surface of the circuit housing on the peripheral side of the key, which can also play the role of marking.
- the MP3 player may use a touch screen, and the control program installed in the MP3 player may generate virtual keys on the touch screen with interactive functions, and the virtual keys may select the player functions, volume, and files.
- the MP3 player can also be a combination of a physical display and physical buttons.
- the MP3 player may be provided with at least one button module 4d, and the button module 4d may be used for human-computer interaction. For example: to achieve pause/start, recording, answering the phone and other operations.
- the key module 4d shown in the figure is only for illustrative purposes, and those skilled in the art can adjust the position, number, shape and other parameters of the key module on the basis of fully understanding the function of the key module .
- the key module 4d may also be provided at a circuit housing or other location of the MP3 player.
- the key module 4d can realize different interactive functions based on the user's operation instructions, for example: click the key module 4d once to pause/start (such as music, recording, etc.); quickly click the key module 4d twice, Can answer the phone; click regularly (for example, click once every second, a total of two clicks) to achieve the recording function.
- the user's operation instructions may be operations such as clicking, sliding, scrolling, or a combination thereof. For example, sliding up and down on the surface of the key module 4d to realize the function of adjusting the volume up/down.
- buttons 4d there may be at least two button modules 4d, and they correspond to the left and right earphone core housings, respectively.
- the user can use the left and right hands to operate the key module 4d separately to improve the user experience.
- the functions of human-computer interaction can be allocated to the left and right button modules 4d, and the user can operate the corresponding button module 4d according to different functions. For example, corresponding to the button module 4d on the left: click once to turn on the recording function, and click again to turn off the recording function; click twice quickly to realize the pause/play function. Quickly click twice on the button module 4d on the right to realize the function of answering the phone (if you are playing music and there is no telephone access, you can achieve the function of switching the next/previous song).
- the above functions corresponding to the left and right key modules 4d may be user-defined.
- the user can assign the pause/play function performed by the left button module 4d to the right button module 4d through the application software settings; or assign the answering phone function performed by the right button module 4d to the left button
- the key module 4d is executed.
- the user can also set the operation instructions (such as the number of clicks and swipe gestures) that implement the corresponding functions through the application software.
- the operation instruction corresponding to the answering call function is set from one click to two clicks
- the operation instruction corresponding to the function of switching the next/previous song is set from two clicks to three clicks.
- User customization can be more in line with the user's operating habits, to a certain extent, avoid operational errors and improve user experience.
- the above-mentioned human-computer interaction function may not be unique, but may be set according to functions commonly used by users.
- the key module 4d can also implement functions such as refusing calls, reading text messages by voice, etc., and users can customize settings for the functions and operation instructions corresponding to the functions to meet different needs.
- the MP3 player can be connected to an external device through at least one button module.
- the MP3 player may be connected to the mobile phone through a button on the MP3 player that controls wireless connection (for example, a button that controls Bluetooth connection).
- the user can directly operate the MP3 player on the external device (for example, a mobile phone) to implement one or more of the above-mentioned functions.
- the shape of the button may be a regular shape or an irregular shape such as a rectangle, a circle, an ellipse, and a triangle.
- the shape of each key may be the same or different. Such deformations are within the scope of protection of this application.
- the MP3 player may include an indicator module (not shown in the figure) to display the state of the MP3 player.
- the indicator module can emit an optical signal, and the state of the MP3 player can be known by observing the optical signal.
- the indicator light may display the power status of the MP3 player. As an example only, for example, when the indicator light is red, it may indicate that the power of the MP3 processor is insufficient (for example, the power of the MP3 player is less than 10%). For another example, when charging an MP3 player, the color of the indicator light is yellow, and when the MP3 player is fully charged, the color of the indicator light is green.
- the indicator light when the MP3 player is in a state of communication connection with an external device, the indicator light may remain blinking, or may be displayed in other colors (for example, blue). In some alternative embodiments, the indicator light may display the status of data transmission between the MP3 player and external devices. For example, when a user uses a mobile terminal to transmit data to an MP3 player, the indicator light can switch colors at a specific frequency. For another example, the indicator light can display the fault state of the MP3 player. When the MP3 player is in the fault state, the indicator light is red and keeps blinking. In some embodiments, the indicator module may further include one indicator or multiple indicators. In some embodiments, when there are multiple indicator lights, the color of the indicator lights may be the same or different.
- the MP3 player is only a specific example and should not be regarded as the only feasible implementation.
- the number of indicator lights is not limited to one, and multiple indicators can be selected according to specific requirements.
- the indicator light may display other colors (for example, orange) or keep flashing. Such deformations are within the scope of protection of this application.
- the voice control system may be used as a part of the auxiliary key module, or may be integrated into the speaker device as a separate module.
- the voice control system includes a receiving module 601, a processing module 603, a recognition module 605, and a control module 607.
- the receiving module 601 may be used to receive voice control instructions and send the voice control instructions to the processing module 603.
- the receiving module 601 may be one or more microphones.
- the voice control instruction when the receiving module 601 receives the voice control instruction issued by the user, for example, when the receiving module 601 receives the “start playing” voice control instruction, the voice control instruction is sent to the processing module 603.
- the processing module 603 is in communication with the receiving module 601, generates an instruction signal according to the voice control instruction, and sends the instruction signal to the recognition module 605.
- the processing module 603 when the processing module 603 receives the voice control instruction issued by the current user from the receiving module 601 through the communication connection, it generates an instruction signal according to the voice control instruction.
- the identification module 605 may be in communication with the processing module 603 and the control module 607, identify whether the instruction signal matches the preset signal, and send the matching result to the control module 607.
- the recognition module 605 determines that the instruction signal matches the preset signal
- the recognition module 605 sends the matching result to the control module 607.
- the control module 607 controls the operation of the speaker device according to the instruction signal. For example, when the receiving module 601 receives the voice control instruction of "start playing", after the recognition module 605 determines that the command signal corresponding to the voice control instruction matches the preset signal, the control module 607 will automatically execute the voice control instruction, namely Immediately start playing audio data. When the instruction signal does not match the preset signal, the control module 607 may not execute the control instruction.
- the voice control system may further include a storage module in communication with the receiving module 601, the processing module 603, and the recognition module 605; the receiving module 601 may receive a preset voice control instruction and send it to the processing module 603; processing The module 603 generates a preset signal according to the preset voice control instruction, and sends the preset signal to the storage module.
- the recognition module 605 needs to match the instruction signal received by the receiving module 601 with the preset signal, the storage module sends the preset signal to the recognition module 605 through the communication connection.
- the processing module 603 may further include removing the ambient sound contained in the voice control instruction.
- the processing module 603 in the voice control system in this embodiment may further include denoising the voice control instructions.
- the denoising process refers to removing the environmental sound contained in the voice control instruction.
- the receiving module 601 receives the voice control instruction and sends it to the processing module 603.
- the processing module 603 Before the processing module 603 generates a corresponding command signal according to the voice control instruction, in order to avoid environmental sound Subsequent recognition processes of the recognition module 605 cause interference, and will first de-noise the voice control command.
- the voice control instruction includes noisy environmental sounds such as vehicles driving on the road, whistle, etc.
- the processing module 603 can reduce this The effect of environmental sounds on voice control commands.
- the voice control system 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 the voice control system, it is possible to carry out various forms and details of the specific methods and steps for implementing the voice control system without departing from this principle. Amendments and changes, but these amendments and changes are still within the scope of the above description.
- the receiving module and the processing module may be independent modules or the same module. Such deformations are within the scope of protection of this application.
- the above-described speaker device can 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. 35 shows a schematic diagram of transmitting sound through air conduction.
- the sound source 3510 and the sound source 3520 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 3510 and the sound source 3520 may be two sound holes located at specific positions on the MP3 player (for example, the movement casing 20 or the circuit casing 30).
- the sound source 3510 and the sound source 3520 may be generated by the same vibration device 3501.
- the vibration device 3501 includes a diaphragm (not shown in the figure).
- the front of the diaphragm drives air vibration
- a sound source 3510 is formed at the sound hole through the sound guide channel 3512, and the air is driven to vibrate on the back of the diaphragm, and the sound is output through the sound guide channel 3522
- the sound source 3520 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 known that, in some alternative embodiments, the sound source 3510 and the sound source 3520 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 3510 and the sound source 3520.
- 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 3510 and the sound source 3520 can be designed separately so that the low-frequency near-field sounds (for example, sounds with frequencies less than 800 Hz) generated by the speaker device are as large as possible, and the high-frequency far-field sounds (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 3510 and the sound source 3520, 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. In order to make the high-frequency far-field sound smaller, the distance between the two sound sources in the second set of dual sound sources can be set to a smaller value. Because the wavelength of the high-frequency signal is short, 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) effectively ensuring that the speaker device has a good waterproof effect; (2) can improve the sound quality of the speaker; (3) can reduce the vibration of the housing and suppress sound leakage; (4) It can have a high fitting effect with the user. 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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Abstract
本申请实施例公开了一种扬声器装置,包括用于容纳耳机芯的机芯壳体,用于容纳控制电路或电池的电路壳体,所述控制电路或电池驱动所述耳机芯振动以产生声音,所述声音至少包括两个谐振峰;用于连接所述机芯壳体和所述电路壳体的耳挂;以及至少部分包覆于所述电路壳体和所述耳挂的***的壳体护套,所述壳体护套由防水材料制成。本申请中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
优先权信息
本申请要求于2019年1月5日提交的中国专利申请201910009874.6其全部内容通过引用的方式并入本文。
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。
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,由此感知声音的振动。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。普通的耳机已无法满足用户在一些特殊场景下的正常使用,例如,游泳、户外雨天等,而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:机芯壳体,用于容纳耳机芯;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所述耳机芯振动以产生声音,所述声音至少包括两个谐振峰;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***,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***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***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***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:***部,至少部分***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***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***部部分***于所述接插孔内,且在所述***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***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,所述耳机芯至少包括振动板和第二传振片组成的复合振动装置,所述复合振动装置产生所述两个谐振峰。
在一些实施例中,所述耳机芯还包括至少一个音圈和至少一个磁路***;所述音圈与所述振动板物理连接,所述磁路***与所述第二传振片物理连接。
在一些实施例中,所述振动板的劲度系数大于所述第二传振片的劲度系数。
在一些实施例中,所述耳机芯还包括第一传振片;所述第一传振片与所述复合振动装置通过物理方式连接;所述第一传振片与所述机芯壳体间通过物理方式连接;所述第一传振片能产生另一个谐振峰。
在一些实施例中,所述两个谐振峰都在人耳可听到的声音频率范围之内。
在一些实施例中,所述机芯壳体还包括至少一个接触面,所述接触面至少部分与使用者直接或间接接触;所述接触面具有梯度结构,使得接触面上压力分布不均匀。
在一些实施例中,所述梯度结构包括至少一个凸起或至少一个凹槽。
在一些实施例中,所述梯度结构位于所述接触面的中心或者边缘。
在一些实施例中,所述机芯壳体还包括至少一个接触面,所述接触面至少部分与使用者直接或间接接触;所述接触面上至少包括第一接触面区域和第二接触面区域,第二接触面区域凸起程度高于第一接触面区域。
在一些实施例中,所述第一接触面区域包括引声孔,所述引声孔将机芯壳体内的声波导出,与由机芯壳体的振动产生的漏音声波叠加以减小漏音。
在一些实施例中,所述第一接触面区域、第二接触面区域使用硅胶、橡胶或塑胶等塑料制成。
在一些实施例中,其包括上述的扬声器装置以及按键模块;所述按键模块位于所述机芯壳体或电路壳体上,用于对所述扬声器装置进行控制操作。
在一些实施例中,其包括如上述的扬声器装置以及指示灯;所述指示灯位于所述机芯壳体或电路壳体上,用于显示所述扬声器装置的状态。
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是本申请一些实施例提供的MP3播放器***结构示意图;
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;
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;
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;
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***图;
图10是图2中E部分的局部放大图;
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;
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***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;
图16是本申请一些实施例提供的MP3播放器振动产生和传递***的等效模型;
图17是本申请实施例提供的一种MP3播放器中复合振动装置的结构图;
图18是本申请实施例提供的一种MP3播放器中复合振动装置的结构图;
图19是本申请实施例所适用的一种MP3播放器的频率响应曲线;
图20是本申请一些实施例提供的一种MP3播放器及其复合振动装置的结构图;
图21是本申请一些实施例提供的所适用的一种MP3播放器的振动响应曲线;
图22是本申请一些实施例提供的一种MP3播放器的振动产生部分的结构图;
图23是本申请一些实施例提供的MP3播放器振动产生部分的振动响应曲线;
图24是本申请一些实施例提供的MP3播放器振动产生部分的振动响应曲线;
图25是本申请一些实施例提供的MP3播放器的振动单元接触面的示意图;
图26是本申请一些实施例提供的MP3播放器的振动响应曲线;
图27是本申请一些实施例提供的MP3播放器的振动单元接触面的示意图;
图28是本申请一些实施例提供的MP3播放器的面板粘结方式的俯视图;
图29是本申请一些实施例提供的MP3播放器的面板粘结方式的俯视图;
图30是本申请一些实施例提供的MP3播放器的振动产生部分的结构图;
图31是本申请一些实施例提供的MP3播放器的振动产生部分的振动响应曲线图;
图32是本申请一些实施例提供的MP3播放器的振动产生部分的结构图;
图33是本申请一些实施例提供的MP3播放器的按键模块的结构图;
图34是根据本申请的一些实施例所示的语音控制***的模块示意图;
图35是根据本申请一些实施例提供的一种通过气传导的方式传递声音的示意图。
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***,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***。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***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***进行传递。在一些实施例中,传递***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***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***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***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***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***、感觉器官等的主体可以是人,也可以是具有听力***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。
在一些实施例中,扬声器装置可以包括但不限于耳机、MP3播放器、助听器。本申请的以下具体实施方式中以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***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***,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***,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***。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***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***部142和两个弹性卡勾143。具体地,***部142至少部分***于接插孔22内并抵接于止挡块23的外侧面231上。其中,***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***部142至少部分***于接插孔22内时,使得***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。***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***部142至少部分***于接插孔22内时,***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***方向并排并间隔且对称设置于***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***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***部142的一端,并沿垂直于***方向延伸。进一步地,每个勾部1432设置有连接平行于***方向的侧面与远离***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***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,***部142部分***于接插孔22内,且在***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,***部142的外露部分是指***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***,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,***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***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***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***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***方向的垂直方向上连通接插端15的侧壁。
在一些实施例中,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***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***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***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***至开槽152内,并进一步经开槽152***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***。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***。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***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***。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***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***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***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***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***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***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***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,***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***至通孔425内。
在本实施方式中,插脚881经通孔423***至开槽3a1内,并进一步经开槽3a1***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***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***方向而呈阶梯状设置,从而使得在垂直于***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***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***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***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,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***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***至开槽3a1并进而***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***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***。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***。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***,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,接插孔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(接插孔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。
正常情况下,MP3播放器的音质受到扬声器本身各组成部分的物理性质、各组成部分间振动传递关系、扬声器与外界的振动传递关系以及振动传递***在传递振动时的效率等多方面的影响因素。扬声器本身的各组件部分包括产生振动的组件(例如但不限于耳机芯),固定扬声器的组件(例如但不限于耳挂),传递振动的组件(例如但不限于机芯壳体上的面板、振动传递层等)。各组成部分间振动传递关系以及扬声器与外界的振动传递关系由扬声器与使用者间的接触方式(例如但不限于夹紧力、接触面积、接触形状等)决定。
仅仅为了说明的目的,以下将基于骨传导MP3播放器进一步描述音质和扬声器各组成部分的关系。需要知道的是,在不违背原理的情况下,以下描述的内容也可以同样适用于气导扬声器。图16是根据本申请一些实施例提供的MP3播放器的振动产生和传递***的等效模型,如图16所示,包括固定端1101,传感终端1102,振动单元1103,以及耳机芯1104。其中,固定端1101通过传递关系K1(图16中k
4)与振动单元1103相连,传感终端1102通过传递关系K2(图16中R
3,k
3)与振动单元1103相连,振动单元1103通过传递关系K3(图16中R
4,k
5)与耳机芯1104相连。
这里所说的振动单元是机芯壳体,传递关系K1,K2和K3是扬声器等效***中相应部分之间作用关系的描述(将在下文中详细描述)。等效***的振动方程可以表示为:
m
3x″
3+R
3x′
3-R
4x′
4+(k
3+k
4)x
3+k
5(x
3-x
4)=f
3 (1)
m
4x″
4+R
4x″
4-k
5(x
3-x
4)=f
4 (2)
其中,m
3是振动单元1103的等效质量,m
4是耳机芯1104的等效质量,x
3是振动单元1103的等效位移,x
4是耳机芯1104的等效位移,k
3是传感终端1102和振动单元1103之间的等效弹性系数,k
4是固定端1101和振动单元1103之间的等效弹性系数,k
5是耳机芯1104和振动单元1103之间的等效弹性系数,R
3是传感终端1102和振动单元1103之间的等效阻尼,R
4是耳机芯1104和振动单元1103之间的等效阻尼,f
3和f
4分别是振动单元1103和耳机芯1104之间的相互作用力。***中振动单元的等效振幅A
3为:
其中,f
0表示单位驱动力,ω表示振动频率。由此可见,影响骨传导MP3播放器频率响应的因素包括振动的产生部分(例如但不限于振动单元、耳机芯、外壳以及相互连接方式,如公式(3)中m
3,m
4,k
5,R
4等),振动传递部分(例如但不限于,与皮肤接触方式,耳挂的属性,如公式(3)中k
3,k
4,R
3等)。改变扬声器各部分的结构和各组件之间连接的参数,例如,改变夹紧力的大小相当于改变k
4的大小、改变胶水的粘结方式相当于改变R
4和k
5的大小、改变相关材料的硬度、弹性、阻尼等相当于改变k
3和R
3的大小,这些都可以改变骨传导MP3播放器的频率响应和音质。
在一个具体的实施例中,固定端1101可以是骨传导MP3播放器在振动过程中位置相对固定的点或者位置相对固定的区域(例如,耳挂10),这些点或区域可以看做是骨传导MP3播放器在振动过程中的固定端,固定端可以是由特定的部件组成,也可以是根据骨传导MP3播放器整体结 构确定的位置。例如,可以通过特定的装置将骨传导MP3播放器悬挂、粘接或吸附在人耳附近,也可以设计骨传导MP3播放器的结构和外形使得骨传导部位能够贴住人体皮肤。
传感终端1102是人体接收声音信号的听力***,振动单元1103是骨传导MP3播放器上用于保护、支撑、连接耳机芯的部分,包含将振动传递给使用者的振动传递层或者面板等与使用者直接或间接接触的部分,以及保护、支撑其他振动产生元件的外壳等。耳机芯1104是声音振动的产生装置,可以是以上讨论的耳机芯中一种或几种的组合。
传递关系K1连接固定端1101和振动单元1103,表示骨传导MP3播放器在工作过程中振动产生部分和固定端的振动传递关系,K1取决于骨传导装置的形状和构造。例如,骨传导MP3播放器可以以U型耳机架/耳机挂带形式固定在人体头部,也可以装置在头盔、消防面罩或者其他特殊用途的面具、眼镜等设备上使用,不同的骨传导MP3播放器的形状和构造都会对振动传递关系K1产生影响,进一步地,扬声器的构造还包括骨传导MP3播放器不同部分的组成材质、质量等物理性能。传递关系K2连接传感终端402和振动单元1103。
K2取决于传递***的组成,所述传递***包括但不限于将声音振动通过使用者组织传递给听力***。例如,声音通过皮肤、皮下组织、骨骼等传递给听力***时,不同人体组织的物理性质以及相互连接关系都会对K2产生影响。进一步地,振动单元1103和人体组织接触,在不同实施例中,振动单元上的接触面可以是振动传递层或者是面板的一个侧面,接触面的表面形状、大小、与人体组织间的相互作用力等都会影响传递系数K2。
振动单元1103和耳机芯1104的传递关系K3是由骨传导MP3播放器振动产生装置内部的连接属性决定,耳机芯和振动单元通过刚性或弹性方式相连,或者改变连接件在耳机芯和振动单元间的相对位置,都会改变耳机芯将振动传递给振动单元,尤其是面板的传递效率,从而影响传递关系K3。
在骨传导MP3播放器的使用过程中,声音的产生和传递过程都会影响到最终人体感受到的音质。例如以上提到的固定端、人体感觉终端、振动单元、耳机芯以及传递关系K1、K2和K3等,都可能对骨传导MP3播放器的音效质量产生影响。需要注意的是,此处K1、K2、K3只是对振动传递过程中涉及到不同装置部分或***连接方式的一种表示,可以包含但不限于物理连接方式、力的传导方式、声音的传递效率等。
以上对骨传导MP3播放器等效***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,对影响骨传导MP3播放器振动传递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,以上描述的K1、K2、K3可以是简单的振动或者力学传递方式,也可以包含复杂的非线性传递***,传递关系可以是由各个部分直接连接形成,也可以是通过非接触式方式进行传递。
图17是本申请实施例提供的一种MP3播放器的复合振动装置的结构图;图18是本申请实施例提供的一种MP3播放器及其复合振动装置的结构图。
在一些实施例中,MP3播放器还设置有复合振动装置。在一些实施例中,复合振动装置可以是耳机芯中的一部分。在一些实施例中,图17中的复合振动装置可以是图2中耳机芯50内部提供声音的振动部分。具体的,本申请实施例中的复合振动装置相当于图16中振动单元1103和耳机芯1104的传递关系K3的具体体现。MP3播放器上扬声器的复合振动装置的实施例如图17和图18所示,传振片1801和振动板1802组成一个复合振动装置,所述传振片1801设置为一第一圆环体1813,并在该第一圆环体内设置有向中心辐辏的三个第一支杆1814,其辐辏中心位置与所述振动板1802的中心固定。所述振动板1802的中心为配合所述辐辏中心及第一支杆的凹槽1820。所述振动板1802设置具有与所述传振片1801半径不同的第二圆环体1821,以及与所述第一支杆1814不同粗厚的三个第二支杆1822,在装配时所述第一支杆1814和所述第二支杆1822错开设置,可以但不限于呈60度角。
上述第一支杆和第二支杆都可以采用直杆或者设置成其它符合特定要求的形状,支杆数目可以设置为两个以上,采用对称或非对称排布,以满足经济、实用效果等方面的要求。所述传振片1801具有薄的厚度并且可增加弹力,传振片1801是卡在振动板1802的凹槽1820中心的。在振动板1802的第二圆环体1821下侧粘结设置有音圈1808。所述复合振动装置还包括底板1812,在该底板1812上设置有环形磁体1810,在该环形磁体1810内同心设置有内磁体1811。在所述内磁体1811的顶面设置有内导磁板1809,同时在所述环形磁体1810上设置有环形导磁板1807,在所述环形导磁板1807上方固定设置有垫圈1806,所述传振片1801的第一圆环体1813与该垫圈1806相固定连接。该整个复合振动装置通过一面板1830与外部连接,所述面板1830固连所述传振片1801的辐辏中心位置,并卡合固定在传振片1801和振动板1802的中心位置。利用上述振动板和传振片组成的复合振动装置,可以得到如图18所示的频率响应,产生了两个谐振峰。通过调节两个部件的尺寸和材料等参数,可以使得让谐振峰出现在不同的位置,例如,使得低频的谐振峰出现在更低频移动的位置,和/或使得高频的谐振峰出现在更高频的位置。优选地,振动板的劲度系数大于传振片的劲度系数,所述振动板产生两个谐振峰中的高频谐振峰,所述传振片产生两个谐振峰中的低频谐振峰。这些谐振峰的范围可以设置在人耳可听到的声音的频率范围之内,也可以不在其中,优选地,两个谐振峰都不在人耳可听到的声音的频率范围内;更优选地,一个谐振峰在人耳可听到的声音的频率范围之内,另一个谐振峰在人耳可听到的声音的频率范围之外;更优选的,两个谐振峰都在人耳可听到的声音的频率范围内;以及更进一步优选地,两个谐振峰都在人耳可听到的声音的频率范围内,且其峰值频率在80Hz-18000Hz之间;更进一步优选地,两个谐振峰都在人耳可听到的声音的频率范围内,且其峰值在200Hz-15000Hz之间;更进一步优选地,两个谐振峰都在人耳可到的声音的频率范围内,且其峰值在500Hz-12000Hz之间;更进一步优选地,两个谐振峰都在人耳可到的声音的频率范围内,且其峰值在800Hz-11000Hz之间。谐振峰的峰值的频率最好能有一定差距,例如,两个谐振峰的峰值相差至少500Hz;优选地,两个谐振峰的峰值相差至少1000Hz;更进一步优选地,两个谐振峰的峰值相差至少2000Hz;再更进一步优选地,两个谐振峰的峰值相差至少5000Hz。为了达到比较好的效果,两个谐振峰可以都在人耳可听范围之内,并且谐振峰的峰值频率相差至少 500Hz;优选地,两个谐振峰可以都在人耳可听范围之内,两个谐振峰的峰值相差至少1000Hz;再进一步优选地,两个谐振峰可以都在人耳可听范围之内,两个谐振峰的峰值相差至少2000Hz;以及更进一步优选地,两个谐振峰可以都在人耳可听范围之内,两个谐振峰的峰值相差至少3000Hz;还可以更进一步优选地,两个谐振峰可以都在人耳可听范围之内,两个谐振峰的峰值相差至少4000Hz。两个谐振峰中可以一个在人耳可听范围之内,另一个在人耳可听范围之外,并且两个谐振峰的峰值频率相差至少500Hz;优选地,一个谐振峰在人耳可听范围之内,另一个在人耳可听范围之外,并且两个谐振峰的峰值频率相差至少1000Hz;更优选地,一个谐振峰在人耳可听范围之内,另一个在人耳可听范围之外,并且两个谐振峰的峰值频率相差至少2000Hz;进一步优选地,一个谐振峰在人耳可听范围之内,另一个在人耳可听范围之外,并且两个谐振峰的峰值频率相差至少3000Hz;更进一步优选地,一个谐振峰在人耳可听范围之内,另一个在人耳可听范围之外,并且两个谐振峰的峰值频率相差至少4000Hz。两个谐振峰可以都在频率5Hz-30000Hz之间,并且两个谐振峰的峰值频率相差至少400Hz;优选地,两个谐振峰可以都在频率5Hz-30000Hz之间,并且两个谐振峰的峰值频率相差至少1000Hz;更优选地,两个谐振峰可以都在频率5Hz-30000Hz之间,并且两个谐振峰的峰值频率相差至少2000Hz;进一步优选地,两个谐振峰可以都在频率5Hz-30000Hz之间,并且两个谐振峰的峰值频率相差至少3000Hz;更进一步优选地,两个谐振峰可以都在频率5Hz-30000Hz之间,并且两个谐振峰的峰值频率相差至少4000Hz。两个谐振峰可以都在频率20Hz-20000Hz之间,并且两个谐振峰的峰值频率相差至少400Hz;优选地,两个谐振峰可以都在频率20Hz-20000Hz之间,并且两个谐振峰的峰值频率相差至少1000Hz;更优选地,两个谐振峰可以都在频率20Hz-20000Hz之间,并且两个谐振峰的峰值频率相差至少2000Hz;进一步优选地,两个谐振峰可以都在频率20Hz-20000Hz之间,并且两个谐振峰的峰值频率相差至少3000Hz;更进一步优选地,两个谐振峰可以都在频率20Hz-20000Hz之间,并且两个谐振峰的峰值频率相差至少4000Hz。两个谐振峰可以都在频率100Hz-18000Hz之间,并且两个谐振峰的峰值频率相差至少400Hz;优选地,两个谐振峰可以都在频率100Hz-18000Hz之间,并且两个谐振峰的峰值频率相差至少1000Hz;更优选地,两个谐振峰可以都在频率100Hz-18000Hz之间,并且两个谐振峰的峰值频率相差至少2000Hz;进一步优选地,两个谐振峰可以都在频率100Hz-18000Hz之间,并且两个谐振峰的峰值频率相差至少3000Hz;更进一步优选地,两个谐振峰可以都在频率100Hz-18000Hz之间,并且两个谐振峰的峰值频率相差至少4000Hz。两个谐振峰可以都在频率200Hz-12000Hz之间,并且两个谐振峰的峰值频率相差至少400Hz;优选地,两个谐振峰可以都在频率200Hz-12000Hz之间,并且两个谐振峰的峰值频率相差至少1000Hz;更优选地,两个谐振峰可以都在频率200Hz-12000Hz之间,并且两个谐振峰的峰值频率相差至少2000Hz;进一步优选地,两个谐振峰可以都在频率200Hz-12000Hz之间,并且两个谐振峰的峰值频率相差至少3000Hz;更进一步优选地,两个谐振峰可以都在频率200Hz-12000Hz之间,并且两个谐振峰的峰值频率相差至少4000Hz。两个谐振峰可以都在频率500Hz-10000Hz之间,并且两个谐振峰的峰值频率相差至少400Hz;优选地,两个谐振峰可以都在频率500Hz-10000Hz之间,并且两个谐振峰的峰值频率相差至少1000Hz;更优选地,两个谐振峰可以都 在频率500Hz-10000Hz之间,并且两个谐振峰的峰值频率相差至少2000Hz;进一步优选地,两个谐振峰可以都在频率500Hz-10000Hz之间,并且两个谐振峰的峰值频率相差至少3000Hz;更进一步优选地,两个谐振峰可以都在频率500Hz-10000Hz之间,并且两个谐振峰的峰值频率相差至少4000Hz。这样就拓宽了扬声器的谐振响应范围,得到满足条件的音质。值得注意的是,在实际的使用过程中,可以设置多个传振片和振动板,形成多层振动结构,分别对应不同的频响范围,实现全音域全频响高品质的扬声器振动,或者使频率响应曲线在某些特定频率范围内达到使用要求。例如,在骨传导助听器中,为了满足正常听力要求,可以选择谐振频率在100Hz-10000Hz的范围内的一个或多个振动板、传振片构成的耳机芯。关于振动板和传振片构成的复合振动装置的描述出现于2011年12月23日提交的中国专利申请号201110438083.9中披露的,名称为“一种骨传导扬声器及其复合振动装置”的专利申请中,该专利文献全文引用在此作为参考。
图20是本申请一些实施例提供的一种MP3播放器复合振动装置的结构图在另一个实施例中,如图20所示,复合振动装置包括一个振动板2002,第一传振片2003和第二传振片2001。第一传振片2003将振动板2002和第二传振片2001固定在外壳2019上,由振动板2002、第一传振片2003和第二传振片2001组成的复合振动装置可以产生不少于两个谐振峰,在听力***可听范围内产生更加平坦的频率响应曲线,从而改善扬声器的音质。
有第一传振片的三重复合振动***产生的谐振峰数多于没有第一传振片的复合振动***产生的谐振峰。优选地,所述三重复合振动***可以产生至少有三个谐振峰;更优选地,至少有一个谐振峰不在人耳可听到的范围之内;更优选地,谐振峰都在人耳可听到的范围之内;更进一步优选地,谐振峰都在人耳可听到的范围之内,且其峰值频率不高于18000Hz;更进一步优选地,谐振峰都在人耳可听到的声音的频率范围内,且其峰值在100Hz-15000Hz之间;更进一步优选地,谐振峰都在人耳可到的声音的频率范围内,且其峰值在200Hz-12000Hz之间;更进一步优选地,谐振峰都在人耳可到的声音的频率范围内,且其峰值在500Hz-11000Hz之间。谐振峰的峰值的频率最好能有一定差距,例如,至少存在两个谐振峰的峰值相差至少200Hz;优选地,至少存在两个谐振峰的峰值相差至少500Hz;更优选地,至少存在两个谐振峰的峰值相差至少1000Hz;再进一步优选地,至少存在两个谐振峰的峰值相差至少2000Hz;再更进一步优选地,至少存在两个谐振峰的峰值相差至少5000Hz。为了达到比较好的效果,谐振峰可以都在人耳可听范围之内,并且至少存在两个谐振峰的峰值频率相差至少500Hz;优选地,谐振峰可以都在人耳可听范围之内,至少存在两个谐振峰的峰值相差至少1000Hz;更优选地,谐振峰可以都在人耳可听范围之内,至少存在两个谐振峰的峰值相差至少1000Hz;再进一步优选地,谐振峰可以都在人耳可听范围之内,至少存在两个谐振峰的峰值相差至少2000Hz;以及更进一步优选地,谐振峰可以都在人耳可听范围之内,至少存在两个谐振峰的峰值相差至少3000Hz;还可以更进一步优选地,谐振峰可以都在人耳可听范围之内,至少存在两个谐振峰的峰值相差至少4000Hz。谐振峰中可以有两个在人耳可听范围之内,另一个在人耳可听范围之外,并且至少存在两个谐振峰的峰值频率相差至少500Hz;优选地,两个谐振峰在人耳可听范围之内,另一个谐振峰在人耳可听范围之外,并且至少存在两个谐振峰的峰值频率相差至少 1000Hz;更优选地,两个谐振峰在人耳可听范围之内,另一个在人耳可听范围之外,并且至少存在两个谐振峰的峰值频率相差至少2000Hz;进一步优选地,两个谐振峰在人耳可听范围之内,另一个在人耳可听范围之外,并且至少存在两个谐振峰的峰值频率相差至少3000Hz;更进一步优选地,两个谐振峰在人耳可听范围之内,另一个在人耳可听范围之外,并且至少存在两个谐振峰的峰值频率相差至少4000Hz。谐振峰中可以有一个在人耳可听范围之内,另外两个在人耳可听范围之外,并且至少存在两个谐振峰的峰值频率相差至少500Hz;优选地,一个谐振峰在人耳可听范围之内,另外两个谐振峰在人耳可听范围之外,并且至少存在两个谐振峰的峰值频率相差至少1000Hz;更优选地,一个谐振峰在人耳可听范围之内,另外两个在人耳可听范围之外,并且至少存在两个谐振峰的峰值频率相差至少2000Hz;进一步优选地,一个谐振峰在人耳可听范围之内,另外两个在人耳可听范围之外,并且至少存在两个谐振峰的峰值频率相差至少3000Hz;更进一步优选地,一个谐振峰在人耳可听范围之内,另外两个在人耳可听范围之外,并且至少存在两个谐振峰的峰值频率相差至少4000Hz。谐振峰可以都在频率5Hz-30000Hz之间,并且至少存在两个谐振峰的峰值频率相差至少400Hz;优选地,谐振峰可以都在频率5Hz-30000Hz之间,并且至少存在两个谐振峰的峰值频率相差至少1000Hz;更优选地,谐振峰可以都在频率5Hz-30000Hz之间,并且至少存在两个谐振峰的峰值频率相差至少2000Hz;进一步优选地,谐振峰可以都在频率5Hz-30000Hz之间,并且至少存在两个谐振峰的峰值频率相差至少3000Hz;更进一步优选地,谐振峰可以都在频率5Hz-30000Hz之间,并且至少存在两个谐振峰的峰值频率相差至少4000Hz。谐振峰可以都在频率20Hz-20000Hz之间,并且至少存在两个谐振峰的峰值频率相差至少400Hz;优选地,谐振峰可以都在频率20Hz-20000Hz之间,并且至少存在两个谐振峰的峰值频率相差至少1000Hz;更优选地,谐振峰可以都在频率20Hz-20000Hz之间,并且至少存在两个谐振峰的峰值频率相差至少2000Hz;进一步优选地,谐振峰可以都在频率20Hz-20000Hz之间,并且至少存在两个谐振峰的峰值频率相差至少3000Hz;更进一步优选地,谐振峰可以都在频率20Hz-20000Hz之间,并且至少存在两个谐振峰的峰值频率相差至少4000Hz。谐振峰可以都在频率100Hz-18000Hz之间,并且至少存在两个谐振峰的峰值频率相差至少400Hz;优选地,谐振峰可以都在频率100Hz-18000Hz之间,并且至少存在两个谐振峰的峰值频率相差至少1000Hz;更优选地,谐振峰可以都在频率100Hz-18000Hz之间,并且至少存在两个谐振峰的峰值频率相差至少2000Hz;进一步优选地,谐振峰可以都在频率100Hz-18000Hz之间,并且至少存在两个谐振峰的峰值频率相差至少3000Hz;更进一步优选地,谐振峰可以都在频率100Hz-18000Hz之间,并且至少存在两个谐振峰的峰值频率相差至少4000Hz。谐振峰可以都在频率200Hz-12000Hz之间,并且至少存在两个谐振峰的峰值频率相差至少400Hz;优选地,谐振峰可以都在频率200Hz-12000Hz之间,并且至少存在两个谐振峰的峰值频率相差至少1000Hz;更优选地,谐振峰可以都在频率200Hz-12000Hz之间,并且至少存在两个谐振峰的峰值频率相差至少2000Hz;进一步优选地,谐振峰可以都在频率200Hz-12000Hz之间,并且至少存在两个谐振峰的峰值频率相差至少3000Hz;更进一步优选地,谐振峰可以都在频率200Hz-12000Hz之间,并且至少存在两个谐振峰的峰值频率相差至少4000Hz。谐振峰可以都在频率500Hz-10000Hz之间,并且至少存在两个谐振 峰的峰值频率相差至少400Hz;优选地,谐振峰可以都在频率500Hz-10000Hz之间,并且至少存在两个谐振峰的峰值频率相差至少1000Hz;更优选地,谐振峰可以都在频率500Hz-10000Hz之间,并且至少存在两个谐振峰的峰值频率相差至少2000Hz;进一步优选地,谐振峰可以都在频率500Hz-10000Hz之间,并且至少存在两个谐振峰的峰值频率相差至少3000Hz;更进一步优选地,谐振峰可以都在频率500Hz-10000Hz之间,并且至少存在两个谐振峰的峰值频率相差至少4000Hz。在一个实施例中,通过利用振动板、第一传振片和第二传振片组成的三重复合振动***,可以得到如图21所示的频率响应,产生了三个明显的谐振峰,能够使扬声器频响在低频范围(600Hz左右)的灵敏度得到较大提升,提高了音质。
通过改变第一传振片的尺寸和材料等参数,可以让谐振峰发生移动,最终获得更理想的频率响应。优选地,第一传振片为一弹性片。该弹性由第一传振片的材料、厚度、结构等多方面决定。第一传振片的材料,例如但不限于,钢材(例如但不限于不锈钢、碳素钢等)、轻质合金(例如但不限于铝合金、铍铜、镁合金、钛合金等)、塑胶(例如但不限于高分子聚乙烯、吹塑尼龙、工程塑料等),也可以是能达到同样性能的其他单一或复合材料。对于复合材料,例如但不限于玻璃纤维、碳纤维、硼纤维、石墨纤维、石墨烯纤维、碳化硅纤维或芳纶纤维等增强材料,也可以是其它有机和/或无机材料的复合物,例如玻璃纤维增强不饱和聚酯、环氧树脂或酚醛树脂基体组成的各类玻璃钢。第一传振片的厚度不低于0.005mm,优选地,厚度为0.005mm-3mm,更优选地,厚度为0.01mm-2mm,再优选地,厚度为0.01mm-1mm,进一步优选地,厚度为0.02mm-0.5mm。第一传振片的结构可以设定成环状,优选地,包含至少一个圆环,优选地,包含至少两个圆环,可以是同心圆环,也可以是非同心圆环,圆环间通过至少两个支杆相连,支杆从外环向内环中心辐射,进一步优选地,包含至少一个椭圆圆环,进一步优选地,包含至少两个椭圆圆环,不同的椭圆圆环有不同的曲率半径,圆环之间通过支杆相连,更进一步优选地,第一传振片包含至少一个方形环。第一传振片结构也可以设定成片状,优选地,上面设置镂空图案,镂空图案的面积不小于没有镂空的面积。以上描述中材料、厚度、结构可以组合成不同的传振片。例如,环状传振片具有不同的厚度分布,优选地,支杆厚度等于圆环厚度,进一步优选地,支杆厚度大于圆环厚度,更进一步优选地,内环的厚度大于外环的厚度。
本申请中针对上述的内容还公开了关于振动板、第一传振片、第二传振片的具体的实施例,图22是根据本申请一些实施例提供的一种MP3播放器中振动产生部分的结构图。如图22所示,耳机芯包括由导磁板2210,磁铁2211和导磁体2212组成的磁路***,振动板2214,线圈2215,第一传振片2216和第二传振片2217。面板2213(即机芯壳体上贴近用户的一侧)突出外壳2219,和振动片2214通过胶水粘结,第一传振片2216将耳机芯连接固定在外壳2219上,形成悬挂结构。
在骨传导MP3播放器工作的过程中,由振动板2214,第一传振片2216和第二传振片2217组成的三重振动***能够产生更为平坦的频率响应曲线,从而改善骨传导MP3播放器的音质。第一传振片2216将耳机芯弹性连接在外壳2219上,可以减少耳机芯传递给外壳的振动,从而有效地降低由于壳体振动导致的漏音,也减少了壳体的振动对骨传导MP3播放器音质的影响。图23所示是 外壳振动强度和面板振动强度随着频率的响应曲线。其中,粗线显示的是使用第一传振片2216后振动产生部分的频率响应,细线显示的是不使用第一传振片2216后振动产生部分的频率响应。可以看出,在500Hz以上的频率范围,不含有第一传振片2216的骨传导MP3播放器外壳的振动明显大于含有第一传振片2216的骨传导MP3播放器的外壳的振动。图24所示是含有第一传振片2216和不含有第一传振片2216两种情况下的漏音比较。其中,含有第一传振片2216的装置在中频(例如1000Hz左右)范围的漏音小于不含有第一传振片2216的装置在对应频率范围的漏音。由此可以看出,面板和外壳间使用第一传振片后可以有效地降低外壳的振动,从而降低漏音。在一些实施例中,第一传振片可以采用包括但不限于不锈钢、铍铜、塑胶、聚碳酸酯材料,其厚度在0.01mm-1mm的范围内。
需要注意的是,以上对骨传导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,在了解骨传导MP3播放器的基本原理后,可能在不背离这一原理的情况下,对实施骨传导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,第一传振片不限于一个或两个圆环,也可以为两个以上。又例如,第一传振片的多个元件之间的形状可以相同,也可以不相同(如,圆环和/或方环)。诸如此类的变形,均在本申请的保护范围之内。
再参照图16,传感终端1102和振动单元1103间的传递关系K2也会影响到骨传导MP3播放器***的频率响应。人耳听到的声音,取决于耳蜗接收到的能量,该能量受到传递过程中不同物理量的影响,可由以下公式表示:
P=∫∫
S α·f(a,R)·L·ds (4)
其中,P正比于耳蜗接收到的能量,S是接触面502a与人脸接触的面积,α是一个量纲转换的系数,f(a,R)表示接触面上一点的加速度a和接触面与皮肤接触的紧密程度R对能量传递的影响,L是任一接触点上机械波传递的阻抗,即单位面积的传递阻抗。
由(4)可知,声音的传递受到传递阻抗L的影响,骨传导MP3播放器***的振动传递效率与L有关,骨传导MP3播放器***的频响曲线为接触面上各点的频响曲线的叠加。改变影响阻抗的因素包括能量传递面积的大小、形状、粗糙程度、受力大小或受力分布等。例如,通过改变振动单元的结构和外形来改变声音的传递效果,进而改变骨传导扬声器的音质。仅仅是作为示例,改变振动单元接触面的相应物理特性,可以达到改变声音传递的效果。
图25为本申请实施例中一种MP3播放器的振动单元接触面的示意图。在一些实施例中,图25中的振动单元接触面相当于图2中机芯壳体20处与人体接触的外壁。其中,该实施例是传感终端1102和振动单元1103间的传递关系K2的具体体现。如图25所示,一种精心设计的接触面表面设有梯度结构,所述梯度结构指的是接触面表面存在高度变化的区域。梯度结构可以是接触面外侧(与使用者贴合的一侧)存在的凸起/凹下或者台阶状等结构,也可以是接触面内侧(背向使用者的一侧)存在的凸起/凹下或者台阶状等结构。需要知道的是,所述振动单元接触面可以贴合在使用者头部的任意位置,例如,头顶、额头、脸颊、鬓角、耳廓、耳廓背面等。如图25所示,接触面1601 (接触面外侧)存在凸起或凹下(未在图25中显示)。在骨传导MP3播放器工作的过程中,凸起或凹下部分与使用者接触,改变接触面1601上不同位置与人脸接触时的压力。凸起部分与人脸接触更紧密,与之接触的皮肤和皮下组织受到比其它部分更大的压力;相应的,与下凹部分接触的皮肤和皮下组织受到比其它部分更小的压力。例如,图25中的接触面1601上存在A,B,C三点,分别位于接触面1601非凸起部分,凸起部分边缘和凸起部分上。在与皮肤接触的过程中,A,B,C三点处皮肤所受的夹紧力大小FC>FA>FB。在一些实施例中,B点的夹紧力大小为0,即B点不与皮肤接触。人脸皮肤与皮下组织在不同压力下表现出对声音的阻抗和响应不同。压力大的部位阻抗率小,对声波有偏向高通的滤波特性,压力小的部位阻抗率大,有偏向低通的滤波特性。接触面1601各部位的阻抗特性L不同,根据公式(4),不同部位对声音传递时频率的响应不同,声音通过全接触面传递的效果相当于各部位声音传递的总和,最终声音传递到大脑时形成平滑的频率响应曲线,避免了在低频或高频有过高的谐振峰的出现,从而获得整个音频带宽内理想的频率响应。同样的,接触面1601的材质和厚度也会对声音的传递产生影响,从而影响音质效果。例如,接触面材质柔软时,低频范围的声波传递效果好于高频范围的声波传递,接触面材质较硬时,高频范围的声波传递效果好于低频范围的声波传递。
图26显示含有不同接触面的MP3播放器的频率响应。虚线对应接触面上存在凸起结构的MP3播放器的频率响应,实线对应接触面上不存在凸起结构的MP3播放器的频率响应。在中低频范围内(例如,在300Hz到1000Hz的范围内),无凸起结构的振动相对于存在凸起结构的振动有明显的削弱,在频率响应曲线上形成一个“深坑”,表现为不太理想的频率响应,从而影响扬声器的音质。
以上对图26的描述仅仅是针对具体示例的解释,对于本领域的专业人员来说,在了解影响扬声器频率响应的基本原理后,可以对MP3播放器的结构、组件进行各种修正和改变,从而获得不同的频率响应效果。
需要注意的是,对于本技术领域的普通技术人员来说,接触面1601的形状和结构不限于以上描述,也可以是满足其它特定的要求。例如,接触面上的凸起或凹下部分可以分布在接触面的边缘,也可以分布在接触面的中间部位。接触面可能包含一个或多个凸起或凹下部分,凸起和凹下部分可以同时分布在接触面上。接触面上的凸起或凹下部分的材料可以是和接触面材料不同的其它材料,可以是柔性的、钢性的、或者更适合产生特定压力梯度的材料;可以是记忆性材料,也可以是非记忆性材料;可以是单种性质的材料,也可以是复合材料。接触面的凸起或凹下部分的结构图形包括但不限于轴对称图形、中心对称图形、旋转对称图形、非对称图形等。接触面的凸起或凹下部分结构图形可以是一种图形,也可以是两种或者两种以上组合的图形。接触面表面包括但不限于具有一定的光滑度、粗糙度、波纹度等。接触面的凸起或凹下部分的位置分布包括但不限于轴对称、中心对称、旋转对称、非对称分布等。接触面的凸起或凹下部分可以是在接触面边缘,也可以分布在接触面内部。
图27是本申请一些实施例提供的MP3播放器的振动单元接触面的示意图。如图27所示, 图中显示了多种示例性的接触面结构。其中,图中1704所示是接触面上包含多个形状结构相似的凸起的示例。凸起可以用与面板其它部分相同或类似的材料构成,也可以用与其它部分不同的材料。特别的,凸起可以由记忆材料和振动传递层材料共同组成,其中记忆材料的比例不少于10%,优选地,凸起中记忆材料的比例不少于50%。单个凸起的面积占总面积的1%-80%,优选的,占总面积的比例为5%-70%,更优选地,占总面积的比例为8%-40%。所有凸起的面积总合占总面积的5%-80%,优选地,该比例为10%-60%。凸起可以有至少1个,优选地,凸起为1个,更优选地,凸起有2个,进一步优选地,凸起至少有5个。凸起的形状可以是圆形、椭圆形、三角形、长方形、梯形、不规则多边形、或者其他类似图形,其中凸起部分的结构可以是对称或非对称的,凸起部分的位置分布也可以是对称或者非对称的,凸起部分的数量可以是一个或者多个,凸起部分的高度可以是相同也可以是不相同的,凸起的高度和分布可以构成一定的梯度。
图中1705所示是一种接触面凸起部分的结构是两种以上图形组合的示例,其中不同图形的凸起的数量可以是一个或者多个。两种以上的凸起形状可以是圆形、椭圆形、三角形、长方形、梯形、不规则多边形、或者其他类似图形中的任意两种或两种以上的组合。凸起的材料、数量、面积、对称性等与图1704中类似。
图中1706是一种接触面凸起部分分布在接触面边缘和内部的示例,其中凸起部分的数量不限于图中所示。位于接触面边缘的凸起数量占所有凸起数量的1%-80%,优选地,该比例为5%-70%,更优选地,该比例为10%-50%,进一步优选地,该比例为30%-40%。凸起的材料、数量、面积、形状、对称性等与图1704中类似。
图中1707是一种接触面凹下部分的结构图形,凹下部分的结构可以是对称或非对称的,凹下部分的位置分布也可以是对称或非对称的,凹下部分的数量可以是一个或多个,凹下部分的形状可以是相同或不同的,凹下的部分可以是镂空的。单个凹下的面积占总面积的1%-80%,优选的,占总面积的比例为5%-70%,更优选地,占总面积的比例为8%-40%。所有凹下的面积总合占总面积的5%-80%,优选地,该比例为10%-60%。凹下可以有至少1个,优选地,凹下为1个,更优选地,凹下有2个,进一步优选地,凹下至少有5个。凹下的形状可以是圆形、椭圆形、三角形、长方形、梯形、不规则多边形、或者其他类似图形。
图中1708是一种接触面既存在凸起部分又存在凹下部分的示例,凸起和凹下部分的数量不限于一个或多个。凹下的数量和凸起的数量的比例为0.1-100,优选地,该比例为1-80,更优选地,该比例为5-60,进一步优选地,该比例为10-20。单个凸起/凹下的材料、面积、形状、对称性等与图1704中类似。
图中1709是一种接触面具有一定波纹度的示例。波纹由两个以上的凸起/凹下或者两个的组合排列而成,优选地,相邻凸起/凹下间的距离相等,更优选地,凸起/凹下间的距离呈等差排列。
图中1710是一种接触面存在一块较大面积的凸起的示例。凸起的面积占接触面总面积的30%-80%。优选地,凸起的一部分边缘和接触面的一部分边缘基本相互接触。
图中1711是一种接触面存在第一个面积较大的凸起,在第一个凸起上存在第二个面积较 小的凸起。较大面积的凸起占接触面总面积的30%-80%,较小面积的凸起占接触面总面积的1%-30%,优选地,该比例为5%-20%。较小面积占较大面积的5%-80%,优选地,该比例为10%-30%。
以上对MP3播放器接触面结构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播放器接触面结构会影响MP3播放器音质的基本原理后,可能在不背离这一原理的情况下,对实施MP3播放器接触面的具体方式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,凸起或凹下的数量不限于图27中所显示的,也可以对上述描述的凸起、凹下或者接触面表面图案进行一定程度的修改,这些修改仍然在以上描述的保护范围内。而且,MP3播放器至少含有的一个或多个振动单元的接触面可以使用上述相同或者不同的形状和材料,不同接触面上传递的振动效果也会随着接触面性质的不同而产生差异,最终获得不同的音质效果。
图28是面板和振动传递层相连的正视图和侧视图,图29是面板和振动传递层相连的正视图和侧视图。
在一些实施例中,振动传递层可以设置在机芯壳体20与人体接触的侧壁的外表面处。其中,该实施例中的振动传递层是为了改变振动单元接触面的应物理特性以改变声音传递效果的具体体现。振动传递层上不同区域对振动的传递效果不同。例如,振动传递层上存在第一接触面区域和第二接触面区域,优选地,第一接触面区域不与面板贴合,第二接触面区域与面板贴合;更优选地,振动传递层与使用者直接或间接接触时,第一接触面区域上的夹紧力小于第二接触面区域上的夹紧力(这里所说的夹紧力是指在振动单元的接触面与使用者之间的压力);进一步优选地,第一接触面区域不与使用者直接接触,第二接触面区域与使用者直接接触并传递振动。第一接触面区域的面积大小和第二接触面区域的面积大小不等,优选地,第一接触面区域的面积小于第二接触面区域的面积,更优选地,第一接触面区域存在小孔,进一步减小第一接触区域的面积;振动传递层的外侧表面(即面向使用者面)可以是平坦的,也可以是不平坦的,优选地,第一接触面区域和第二接触面区域不在同一平面上;更优选地,第二接触面区域高于第一接触面区域;进一步优选地,第二接触面区域和第一接触面区域构成台阶结构;更进一步优选地,第一接触面区与使用者接触,第二接触面区域不与使用者接触。第一接触面区域和第二接触面区域的组成材料可以是相同也可以是不同的,可以是以上描述的振动传递层材料中的一种或多种的组合。以上对于接触面上夹紧力的描述只是本发明的一种表现形式,本领域内的技术人员可以根据实际需要对以上描述的结构和方式进行修改,而这些修改仍然在本发明的保护范围之内。例如,振动传递层可以不是必须的,面板可以直接与使用者接触,面板上可以设置不同的接触面区域,不同的接触面区域拥有与以上描述的第一接触面区域和第二接触面区域类似的性质。再例如,接触面上可以设置第三接触面区域,第三接触面区域上可以设置不同于第一接触面区域和第二接触面区域的结构,并且这些结构能够在减小外壳振动、抑制漏音、改善振动单元的频率响应曲线等方面获得一定的效果。
如图28和图29所示,在一些实施例中,面板501与振动传递层503通过胶水502粘结,胶水粘结处位于面板501两端,面板501位于振动传递层503和壳体504形成的外壳内。优选地, 面板501在振动传递层503上的投影为第一接触面区域,位于第一接触面区域周围的区域是第二接触面区域。
作为一个具体的实施例,如图30所示,耳机芯包括由导磁板2310,磁铁2311和导磁体2312组成的磁路***,振动板2314,线圈2315,第一传振片2316,第二传振片2317和垫圈2318。面板2313突出外壳2319和振动片2314通过胶水粘结,第一传振片2316将耳机芯连接固定在外壳2319上,形成悬挂结构。在面板2313上增加振动传递层2320(例如但不限于硅胶),振动传递层2320能够产生一定的形变适应皮肤形状。振动传递层2320上与面板2313接触的部分高于振动传递层2320上不与面板2313接触的部分,形成台阶结构。在振动传递层2320不与面板2313接触的部分(图30中振动传递层2320未凸出的部分)设计一个或多个小孔2321。在振动传递层设计小孔可以降低漏音:面板2313通过振动传递层2320与外壳2319的连接变弱,面板2313通过振动传递层2320传递到外壳2319的振动减少,从而减少了外壳2319振动带来的漏音;振动传递层2320未凸出的部分设置小孔2321后面积减小,能够带动的空气减少,由空气振动引起的漏音减小;振动传递层2320未凸出部分设置小孔2321后,壳体内的空气振动被导引出壳外,与外壳2319引发的空气振动相互抵消,减小漏音。需要注意的是,由于小孔2321可以将复合振动装置外壳内的声波导出,与漏音声波叠加以减少漏音,因此小孔又可称为引声孔。
此处需要说明的是,在本实施例中,由于面板凸出MP3播放器外壳,同时使用第一传振片将面板与MP3播放器外壳连接,面板与外壳的耦合程度大大降低,并且第一传振片能够提供一定的形变,使得面板在与使用者贴合是具有更高的自由度,能够更好地适应复杂的贴合面,所述第一传振片可以使得面板相对于外壳产生一定角度的倾斜。优选的,倾斜角度不超过5°。
进一步的,MP3播放器的振动效率随着贴合状态的不同而不同。良好的贴合状态具有更高的振动传递效率。如图31所示,粗线显示贴合较好的状态下的振动传递效率,细线显示贴合不好的状态下的振动传递效率,可以看出,较好的贴合状态振动传递效率更高。
图32是本申请一些实施例提供的MP3播放器的振动产生部分的结构图。如图32所示,作为一个具体的实施例,在本实施例中,耳机芯包括由导磁板2520,磁铁2511和导磁体2512组成的磁路***,振动板2514,线圈2515,第一传振片2516,第二传振片2517和垫圈2518。面板2513突出外壳2519,和振动片2514通过胶水粘结,第一传振片2516将耳机芯连接固定在外壳2519上,形成悬挂结构。
本实施例与上述图30中提供的实施例的不同之处在于:在外壳的边缘增加一个围边,在外壳与皮肤接触的过程中,围边可以使得作用力分布更加均匀,增加MP3播放器佩戴的舒适度。围边2510和面板2513之间存在高度差d0。皮肤作用在面板2513上的力使得面板2513与围边2510之间的距离d减小,当扬声器与使用者间的压力大于第一传振片2516形变为d0时所受的力时,多余的夹紧力会经由围边2510传递到皮肤,而不对振动部分的夹紧里产生影响,使得夹紧力的一致性更高,从而保证音质。
在正常情况下,MP3播放器的音质受到MP3播放器本身各组成部分的物理性质、各组成 部分间振动传递关系、扬声器与外界的振动传递关系以及振动传递***在传递振动时的效率等多方面的影响因素。扬声器本身的各组件部分包括产生振动的组件(例如但不限于耳机芯),固定MP3播放器的组件(例如但不限于耳挂10),传递振动的组件(例如但不限于面板、振动传递层等)。各组成部分间振动传递关系以及扬声器与外界的振动传递关系由扬声器与使用者间的接触方式(例如但不限于夹紧力、接触面积、接触形状等)决定。
需要注意的是,以上对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,对实施扬声器的具体方式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,振动传递层可以不局限于图30所示的一层,还可以为多层,其具体层数可根据实际情况进行确定,在本申请中关于振动传递层的具体层数在此不作具体限定。又例如,振动传递层与面板之间形成的台阶结构亦不局限于图30中的一个,当振动传递层为多个时,各个振动传递层与面板之间以及各个振动传递层之间均可以形成台阶结构。诸如此类的变形,均在本申请的保护范围之内。
图33是根据本申请一些实施例提供的MP3播放器的按键模块的结构图。如图33所示,在一些实施例中,MP3播放器还可以包括按键模块。在一些实施例中,按键模块可以包括电源开关键、功能快捷键、菜单快捷键。在一些实施例中,功能快捷键可以包括用于调节声音大小的音量加键和音量减键、用于调节声音文件进度的快进键和快退键、用于控制MP3播放器与外部设备连接(例如,蓝牙连接)的按键。在一些实施例中,按键模块可以包括物理按键和虚拟按键两种形式。例如,当按键模块为物理按键的形式存在时,按键可以设置于电路壳体的辅侧壁34和/或第一侧壁30a处。用户佩戴该实施例中的MP3播放器时,辅侧壁34和第一侧壁30a不与人体皮肤相接触,并裸露在外侧,以便于用户的佩戴和对各个按键的操作。在一些实施例中,按键模块中各个按键的端部表面可以设置有与其功能对应的标识。在一些实施例中,标识可以包括文字(例如,中文和英文)、符号(例如音量加键用“+”标示、音量减键用“-”标示)。在一些实施例中,标识可以通过激光印刷、丝网印刷、移印法、激光填料、热升华法、镂空文字法等方式设置于按键处。在一些实施例中,按键上的标识也可以设置在位于按键周侧的电路壳体的表面,同样可以起到标示的作用。在一些实施例中,MP3播放器可以选用触摸屏,MP3播放器中安装的控制程序可以在具有交互功能的触摸屏上生成虚拟按键,虚拟按键可以对播放器的功能、音量、文件进行选择。此外,MP3播放器也可以是物理显示器和物理按键的结合。
在一些实施例中,如图33所示,MP3播放器可以设置至少一个按键模块4d,按键模块4d可以用于进行人机交互。例如:实现暂停/开始、录音、接听电话等操作。需要知道的是,图中所示的按键模块4d仅仅用于说明的目的,本领域的技术人员可以在充分了解按键模块的作用的基础上,对按键模块的位置、数量、形状等参数进行调整。例如,所述按键模块4d也可以设置于电路壳体或者MP3播放器的其他位置处。
在一些实施例中,按键模块4d可以基于用户的操作指令实现不同的交互功能,例如:点击 一次按键模块4d,可以实现暂停/开始(例如音乐、录音等);快速点击两次按键模块4d,可以实现接听电话;有规律地点击(例如,隔一秒点击一次,总共点击两次)实现录音功能。在一些实施例中,用户的操作指令可以是点击、滑动、滚动等操或其组合的操作。例如在按键模块4d的表面上下滑动,实现调高/低音量的功能。
在另一些实施例中,按键模块4d可以有至少两个,并且分别对应于左、右侧两个耳机芯壳体。用户可以使用左、右手分别操作按键模块4d,提高用户使用体验。
在一个应用场景中,为了进一步提高用户的人机交互体验,可以将人机交互的功能分配到左、右两侧的按键模块4d,用户可以根据功能的不同操作对应的按键模块4d。例如,对应左侧的按键模块4d:点击一次,可以开启录音功能,再点击一次,录音功能关闭;快速点击两次,可以实现暂停/播放功能。在右侧的按键模块4d上快速点击两次,可以实现接听电话功能(若此时在播放音乐且无电话通入,则可以实现切换下一首/上一首歌曲功能)。
在一些实施例中,上述对于左、右侧按键模块4d对应的功能可以是用户自定义的。例如,用户可以通过应用软件设置,将由左侧按键模块4d执行的暂停/播放功能分配到由右侧的按键模块4d执行;或者将由右侧按键模块4d执行的接听电话功能分配到由左侧的按键模块4d执行。此外,对于实现对应功能的操作指令(例如点击次数、滑动手势)用户同样可以通过应用软件进行设置。例如,将接听电话功能对应的操作指令由点击一次设置为点击两次,将切换下一首/上一首歌曲功能对应的操作指令由点击两次设置为点击三次。用户自定义可以更符合用户操作习惯,一定程度上避免操作失误,提高用户体验。
在一些实施例中,上述人机交互功能可以不是唯一的,而是根据用户常用的功能进行设定。例如,按键模块4d还可以实现拒接电话、语音阅读短信等功能,用户可以对于功能以及功能对应的操作指令进行自定义设置,满足不同需求。
在一些实施例中,MP3播放器可以通过至少一个按键模块和外部设备连接。例如,MP3播放器可以通过MP3播放器上一个控制无线连接的按键(例如,控制蓝牙连接的按键)与手机相连。可选地,当建立连接后,用户可以直接在所述外部设备(例如,手机)对MP3播放器进行操作,实现一个或多个上述提到的功能。
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,按键的形状可以为长方形、圆形、椭圆形、三角形等规则形状或不规则形状。又例如,各个按键的形状可以相同或不同。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,MP3播放器可以包括指示灯模块(图中未示出),以显示MP3播放器所处的状态。具体的,指示灯模块可以发出光信号,通过观察该光信号可以获知MP3播放器所处的状态。在一些实施例中,指示灯可以显示MP3播放器的电量状态。仅仅作为示例性说明,例如,指 示灯为红色时,可以表示MP3处理器的电量不足(例如MP3播放器的电量不足10%)。又例如,对MP3播放器进行充电时,指示灯的颜色显示为黄色,MP3的播放器电量充满时,指示灯的颜色显示为绿色。在一些替代性实施例中,例如,当MP3播放器处于与外界设备进行通信连接的状态时,指示灯可以保持闪烁状态,也可以显示为其它的颜色(例如蓝色)。在一些替代性实施例中,指示灯可以显示MP3播放器与外界设备进行数据输送的状态。例如,用户使用移动终端对MP3播放器传送数据时,指示灯可以按照特定的频率进行色彩切换。又例如,指示灯可以显示MP3播放器的故障状态,当MP3播放器处于故障状态时,指示灯为红色并保持闪烁状态。在一些实施例中,指示灯模块中还可以包括一个指示灯或多个指示灯。在一些实施例中,当指示灯为多个时,指示灯的颜色可以相同或不同。
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,指示灯的数量不限于一个,也可以根据具体的需求选择多个。又例如,MP3播放器处于充电状态时,指示灯可以显示其它的颜色(如,橙色)或保持闪烁。诸如此类的变形,均在本申请的保护范围之内。
图34是根据本申请的一些实施例所示的语音控制***的模块示意图。所述语音控制***可以作为辅助按键模块中的一部分,也可以作为单独的模块集成在所述扬声器装置中。在一些实施例中,语音控制***包括接收模块601、处理模块603、识别模块605、控制模块607。
在一些实施例中,接收模块601可以用于接收语音控制指令,并将语音控制指令发送至处理模块603。在一些实施例中,接收模块601可以为一个或者多个麦克风。在一些实施例中,当接收模块601接收到由用户发出的语音控制指令时,如接收模块601接收到“开始播放”的语音控制指令时,会发送该语音控制指令至处理模块603中。
在一些实施例中,处理模块603与接收模块601通讯连接,根据语音控制指令生成指令信号,并发送指令信号至识别模块605。
在一些实施例中,当处理模块603通过通讯连接从接收模块601中接收到由当前用户发出的语音控制指令时,会根据该语音控制指令生成指令信号。
在一些实施例中,识别模块605可以与处理模块603、控制模块607通讯连接,识别指令信号是否与预设信号匹配,并发送匹配结果至控制模块607。
在一些实施例中,当识别模块605判断指令信号与预设信号匹配时,识别模块605会将匹配结果发送到控制模块607。控制模块607会根据指令信号控制扬声器装置的运行。例如,当接收模块601接收到“开始播放”的语音控制指令时,经识别模块605判定该语音控制指令对应的指令信号与预设信号匹配时,控制模块607会自动执行该语音控制指令,即立刻开始播放音频资料。当指令信号与预设信号不匹配时,控制模块607可以不执行控制指令。
在一些实施例中,语音控制***可以进一步包含一储存模块,与接收模块601、处理模块 603、识别模块605通讯连接;接收模块601可以接收一预设语音控制指令并发送至处理模块603;处理模块603根据预设语音控制指令生成预设信号,并将预设信号发送至储存模块。当识别模块605需要将接收模块601接收所得的指令信号与预设信号进行匹配时,储存模块通过通讯连接将预设信号发送到识别模块605中。
在一些实施例中,处理模块603可以进一步包含去除语音控制指令中包含的环境声音。
在一些实施例中,本实施例中的语音控制***中的处理模块603可以进一步包含对语音控制指令进行去噪处理。去噪处理是指去除语音控制指令中所包含的环境声音。在一些实施例中,例如,当处于复杂环境中时,接收模块601接收到语音控制指令并发送到处理模块603,处理模块603根据该语音控制指令生成相应的指令信号之前,为了避免环境声音对后续识别模块605的识别过程产生干扰,会先对语音控制指令进行去噪处理。例如,当接收模块601接收到由用户处于室外马路上时发出的语音控制指令,该语音控制指令包含了马路上车辆行驶、鸣笛等嘈杂的环境声音,处理模块603可以通过去噪处理降低该环境声音对语音控制指令的影响。
需要注意的是,以上对语音控制***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,在了解语音控制***的基本原理后,可能在不背离这一原理的情况下,对实施语音控制***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,接收模块和处理模块可以为相互独立的模块,也可以为同一模块。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)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35显示一种通过气传导的方式传递声音的示意图。
如图35所示,声源3510和声源3520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3510和声源3520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3510和声源3520可以由同一个振动装置3501产生。所述振动装置3501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3512在出声孔处形成声源3510,振膜背面驱动空气振动,通过导声通道3522在出声孔处形成声源3520。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3510和声源3520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3510和声源3520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3510和声源3520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3510和声源3520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3510和声源3520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3510和声源3520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)有效保证扬声器装置具有良好的防水效果;(2)能够改善扬声器的音质;(3)能够减小外壳振动和抑制漏音;(4)能够与使用者之间具有较高的贴合效果。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“***”。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***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***。
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 (27)
- 一种扬声器装置,其特征在于,包括:机芯壳体,用于容纳耳机芯;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所述耳机芯振动以产生声音,所述声音至少包括两个谐振峰;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***,所述壳体护套由防水材料制成。
- 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。
- 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***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。
- 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。
- 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。
- 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。
- 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。
- 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。
- 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***对所述壳 体护套和所述电路壳体进行密封连接。
- 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***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。
- 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。
- 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:***部,至少部分***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***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。
- 根据权利要求12所述的扬声器装置,其特征在于,所述***部部分***于所述接插孔内,且在所述***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***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。
- 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。
- 根据权利要求1所述的扬声器装置,其特征在于,所述耳机芯至少包括振动板和第二传振片组成的复合振动装置,所述复合振动装置产生所述两个谐振峰。
- 根据权利要求15所述的扬声器装置,其特征在于,所述耳机芯还包括至少一个音圈和至少一个磁路***;所述音圈与所述振动板物理连接,所述磁路***与所述第二传振片物理连接。
- 根据权利要求15所述的扬声器装置,其特征在于,所述振动板的劲度系数大于所述第二传振片的劲度系数。
- 根据权利要求15所述的扬声器装置,其特征在于,所述耳机芯还包括第一传振片;所述第一传振片与所述复合振动装置通过物理方式连接;所述第一传振片与所述机芯壳体间通过物理方式连接;所述第一传振片能产生另一个谐振峰。
- 根据权利要求18任一项所述的扬声器装置,其特征在于,所述两个谐振峰都在人耳可听到的声音频率范围之内。
- 根据权利要求15所述的扬声器装置,其特征在于,所述机芯壳体还包括至少一个接触面,所述接触面至少部分与使用者直接或间接接触;所述接触面具有梯度结构,使得接触面上压力分布不均匀。
- 根据权利要求20所述的扬声器装置,其特征在于,所述梯度结构包括至少一个凸起或至少一个凹槽。
- 根据权利要求20所述的扬声器装置,其特征在于,所述梯度结构位于所述接触面的中心或者边缘。
- 根据权利要求15所述的扬声器装置,其特征在于,所述机芯壳体还包括至少一个接触面,所述接触面至少部分与使用者直接或间接接触;所述接触面上至少包括第一接触面区域和第二接触面区域,第二接触面区域凸起程度高于第一接触面区域。
- 根据权利要求23所述的扬声器装置,其特征在于,所述第一接触面区域包括引声孔,所述引声孔将机芯壳体内的声波导出,与由机芯壳体的振动产生的漏音声波叠加以减小漏音。
- 根据权利要求23所述的扬声器装置,其特征在于,所述第一接触面区域、第二接触面区域使用硅胶、橡胶或塑胶等塑料制成。
- 一种扬声器装置,其特征在于,其包括如权利要求1至25之一所述的扬声器装置以及按键模块;所述按键模块位于所述机芯壳体或电路壳体上,用于对所述扬声器装置进行控制操作。
- 一种扬声器装置,其特征在于,其包括如权利要求1至25之一所述的扬声器装置以及指示灯;所述指示灯位于所述机芯壳体或电路壳体上,用于显示所述扬声器装置的状态。
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US11272292B2 (en) | 2022-03-08 |
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