In-Ear high pitch compensates earphoneTechnical field
The present invention relates to earphones, compensate earphone more particularly, to a kind of In-Ear high pitch.
Background technique
With the extensive use of the portable electronic products such as high-quality smart phone, Pad, people are to can be with its fit applicationsEarphone requirement it is also higher and higher, while requiring its bodily form small and exquisite, also requiring it to have true to nature can reproduce various soundsThe high-fidelity sound quality performance of effect.
In addition, no matter which kind of above-mentioned electronic product, in order to allow user listened under the situation for not interfering other people electronics produceVoice signal provided by product, earphone have become the necessary accessory of each electronic product, furthermore earphone also provide listener compared withGood voice transmission enables listener clearly to hear and understand sound-content.
(i.e. the English of IEM is complete for In-Ear Headphones also known as ear-canal earphones, built-in earplug or In-Ear monitorClaim: In-Ear-Monitor), it is a kind of earphone inside human body hearing organ, according to its design, can seals when in useThe firmly ear canal of user.
In-Ear Headphones are on the basis of common headphones, to obtain better airtightness in colloid chock plug insertion ear canal.PoleThe big expression effect for increasing earphone, this leakproofness generally provide two kinds of functions:
(1) interference of the ambient noise to music is reduced.
(2) the closed environment provided, greatly reduces leakage sound.
Be for practical standpoint-in a noisy environment；The relatively low impregnable appreciation sound of volume can be usedIt is happy.
(2) texture and amount sense of low frequency a: are increased；
B: increasing to be connected to the conduit of the performance of music detail these earphones with ear muff and be inserted into the first half area of ear canal, fromAnd create a kind of listening environments of sealing.
And the In-Ear Headphones of many top grades even can be customized ear-drum, to provide optimal comfort level and perfectSoundproof effect.
The electro-acoustic conversion device of the Functional Unit converted using piezoelectric ceramics as electroacoustic has been widely used.
Currently, its Hz-KHz of independent magnetic earphone has good sound effect in 20Hz to 20KHz, and higherSound quality at frequency is difficult to improve on existing structure.It is compound with electromagnetic unit by increasing a piezoelectric part in structure,Its frequency characteristic can extend to higher level, and current test shows at least to can achieve 40KHz.
Compound application such as CN201510698126, the piezoelectricity sounding for including in structure are carried out to electromagnetic type and piezoelectric typeThe support plate peripheral part of body is supported in the shell for direct or indirect, more applies its similar mode, is by piezoelectric elementsSupport plate periphery be fixed in shell.
Above-mentioned setting is unfavorable for individually controlling high frequency response.
Summary of the invention
The purpose of the present invention is to provide In-Ear high pitchs to compensate earphone, is asked with solving technology existing in the prior artTopic.
In-Ear high pitch provided by the invention compensates earphone, it includes rear cover, tpe electromagnetic sound-producing device, resonator, piezoelectric vibrationBody, front cover, the front cover have the extension sound channel that can be put into ear canal, and the piezoelectric vibration body device is extending in sound channel, describedIn resonator, the front cover and rear cover cover respectively mounted in resonator both ends tpe electromagnetic sound-producing device device；
The piezoelectric transducer includes fixed plate, piezoelectric ceramic vibrator, elastic damping, and described piezoelectric ceramic vibrator one end is solidIn fixed plate, elastic damping is bonded on piezoelectric ceramic vibrator, the fixed plate, which is packed in, to be extended in sound channel, and piezoelectricity is made to make potteryPorcelain oscillator forms single cantilever beam structure.
Further, the tpe electromagnetic sound-producing device and piezoelectric transducer are mutually indepedent and are operated alone.
Further, the piezoelectric ceramic vibrator is the unilateral composite construction of monolithic piezoelectric ceramic and substrate.
Further, the piezoelectric ceramic vibrator is biplate piezoelectric ceramics and substrate bilateral composite construction.
Further, the piezoelectric ceramics in the piezoelectric ceramic vibrator minor structure is single layer piezoelectric body.
Further, the piezoelectric ceramics in the piezoelectric ceramic vibrator minor structure is multi-layer piezoelectric body.
Further, the elastic damping is adhered to piezoelectric ceramic vibrator side.
Further, the elastic damping is adhered to piezoelectric ceramic vibrator two sides.
Further, the rear cover and front cover are made of metal.
Further, the rear cover and front cover are made of plastics.
In-Ear high pitch provided by the invention compensates earphone, has the advantages that
The present invention includes rear cover, tpe electromagnetic sound-producing device, resonator, piezoelectric transducer, front cover, and front cover, which has, can be put into ear canalExtend sound channel, piezoelectric vibration body device is extending in sound channel, and in resonator, front cover and rear cover cover tpe electromagnetic sound-producing device device respectivelyMounted in resonator both ends；Piezoelectric transducer includes fixed plate, piezoelectric ceramic vibrator, elastic damping, and piezoelectric ceramic vibrator one end is solidIn fixed plate, elastic damping is bonded on piezoelectric ceramic vibrator, fixed plate, which is packed in, to be extended in sound channel, and piezoelectric ceramic vibrator is madeSon forms single cantilever beam structure.
By above-mentioned setting, piezoelectric transducer is put into and is extended in ear canal, being designed in this way is beneficial to individually control high frequency soundIt answers, by extending ear canal, enhances sound directivity, and the fixed form of piezoelectric ceramic vibrator of the present invention is single cantilever beam knotStructure, for working method because its other end is free end, vibration displacement is big, is improving frequency compared with the fixed working method in peripheryWhen characteristic needs identical vibration, the piezoelectric ceramic thickness of single cantilever beam structure can be thicker, facilitates the system of easyization piezoelectric ceramicsMake.
Detailed description of the invention
It below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior artEmbodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described belowAttached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative laborIt puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram that the embodiment of the present invention one provides；
Fig. 2 is structural schematic diagram provided by Embodiment 2 of the present invention；
Appended drawing reference:
1- rear cover；2- tpe electromagnetic sound-producing device；3- resonator；
4- piezoelectric transducer；5- front cover；51- extends sound channel；
41- fixed plate；42- piezoelectric ceramic vibrator；43- elastic damping.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementationExample is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skillPersonnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely toConvenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second "," third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phaseEven ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It canTo be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediaryConnection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete conditionConcrete meaning in invention.
Embodiment one:
Fig. 1 is the structural schematic diagram that the In-Ear high pitch that provides of the embodiment of the present invention one compensates earphone, it include rear cover 1,Tpe electromagnetic sound-producing device 2, resonator 3, piezoelectric transducer 4, front cover 5, front cover 5 have the extension sound channel 51 that can be put into ear canal, piezoelectricity vibration4 device of kinetoplast is in the extension sound channel 51 of front cover 5, and in resonator 3, front cover 5 and rear cover 1 cover 2 device of tpe electromagnetic sound-producing device respectivelyMounted in 3 both ends of resonator；
Piezoelectric transducer 4 includes fixed plate 41, piezoelectric ceramic vibrator 42, elastic damping 43,42 one end of piezoelectric ceramic vibratorIt being packed in fixed plate 41, elastic damping 43 is bonded on piezoelectric ceramic vibrator 42, fixed plate 41, which is packed in, to be extended in sound channel 51,Piezoelectric ceramic vibrator 42 is set to form single cantilever beam structure.
Tpe electromagnetic sound-producing device 2 and piezoelectric transducer 4 are mutually indepedent and are operated alone.
Piezoelectric ceramic vibrator 42 is the unilateral composite construction of monolithic piezoelectric ceramic and substrate.
Piezoelectric ceramics in 42 structure of piezoelectric ceramic vibrator is single layer piezoelectric body.
Elastic damping 43 is adhered to 42 side of piezoelectric ceramic vibrator.
Rear cover 1 and front cover 5 are made of metal or plastics.
Piezoelectric ceramics is a kind of informational function ceramic material-piezoelectric effect that can convert mutually mechanical energy and electric energy,Piezoelectric ceramics also has dielectricity, elasticity etc., has been widely used in medical imaging, sonic transducer, sound in addition to piezoelectricityEnergy converter, ultrasonic motor etc..
Piezoelectric ceramics under mechanical stress effect, causes the relative displacement of internal positive and negative charge center and occurs using its materialPolarization, causes material ends surface the opposite bound charge of symbol i.e. piezoelectric effect occur and make, and has sensitive characteristic, pressureElectroceramics is mainly for the manufacture of ultrasonic transducer, underwater acoustic transducer, electroacoustic transducer, ceramic filter, ceramic transformer, ceramicsFrequency discriminator, high pressure generator, infrared detector, SAW device, electro-optical device, ignition and blasting device and piezolectric gyroscope etc..
Common piezoelectric ceramics has barium titanate series, lead zirconate titanate binary system and adds the third ABO3 (A table in binary systemShow bivalent metal ion, B indicates that quadrivalent metallic ion or several ion summations are positive tetravalence) type compound, such as: Pb (Mn1/3Nb2/3) the ternary system of the compositions such as O3 and Pb (Co1/3Nb2/3) O3.If adding the 4th kind or more on ternary systemCompound, constitute quaternary system or polynary series piezoelectric ceramic.In addition, there are also a kind of metaniobate series piezoelectric ceramic, such as inclined niobiumSour potassium sodium (Na0.5K0.5NbO3) and inclined strontium barium niobate (BaxSr1-xNb2O5) etc., they are free of toxic lead,It is advantageous to environmental protection.
Piezoelectric ceramics has sensitive characteristic, extremely faint mechanical oscillation can be converted into electric signal, can be used for soundReceive system, meteorological detection, telemetering environmental protection, household electrical appliance etc..
The deformation quantity very little that piezoelectric ceramics generates under electric field action, no more than thousand a ten thousandths of size itself,Based on accurate control mechanism-piezoelectric actuator of this principle production, for precision instrument and mechanical control, microelectronics skillThe fields such as art, bioengineering are all a big Gospels.The frequency control apparatus such as resonator, filter are to determine communication equipment performancePrimary Component, piezoelectric ceramics has apparent superiority in this respect.Its frequency stability is good, precision height and applicable frequency modelEnclose width, and it is small in size, nonhygroscopic, the service life is long, and anti-interference can be improved especially in multiple communicating apparatus, make previous electricityMagnetic machine can not be unmatch and be faced with the destiny substituted.
Embodiment two:
Fig. 2 is the structural schematic diagram that In-Ear high pitch provided by Embodiment 2 of the present invention compensates earphone, it include rear cover 1,Tpe electromagnetic sound-producing device 2, resonator 3, piezoelectric transducer 4, front cover 5, front cover 5 have the extension sound channel 51 that can be put into ear canal, piezoelectricity vibration4 device of kinetoplast is extending in sound channel 51, and in resonator 3, front cover 5 and rear cover 1 cover respectively mounted in sympathetic response 2 device of tpe electromagnetic sound-producing device3 both ends of chamber；
Piezoelectric transducer 4 includes fixed plate 41, piezoelectric ceramic vibrator 42, elastic damping 43,42 one end of piezoelectric ceramic vibratorIt being packed in fixed plate 41, elastic damping 43 is bonded on piezoelectric ceramic vibrator 42, fixed plate 41, which is packed in, to be extended in sound channel 51,Piezoelectric ceramic vibrator 42 is set to form single cantilever beam structure.
Tpe electromagnetic sound-producing device 2 and piezoelectric transducer 4 are mutually indepedent and are operated alone.
Piezoelectric ceramic vibrator 42 is the unilateral composite construction of monolithic piezoelectric ceramic and substrate.
Piezoelectric ceramics in 42 structure of piezoelectric ceramic vibrator is single layer piezoelectric body.
Elastic damping 43 is adhered to 42 two sides of piezoelectric ceramic vibrator.
Rear cover 1 and front cover 5 are made of metal or plastics.
Embodiment three:
In-Ear high pitch provided in this embodiment compensates earphone, is to compensate earphone to the In-Ear high pitch that embodiment one providesFurther improvement, on the basis of Fig. 1 structure；
Piezoelectric ceramic vibrator 42 is the unilateral composite construction of monolithic piezoelectric ceramic and substrate.
Piezoelectric ceramics in 42 structure of piezoelectric ceramic vibrator is multi-layer piezoelectric body.
Elastic damping 43 is adhered to 42 side of piezoelectric ceramic vibrator.
Example IV:
In-Ear high pitch provided in this embodiment compensates earphone, is to compensate earphone to the In-Ear high pitch that embodiment two providesFurther improvement, on the basis of Fig. 2 structure；
Piezoelectric ceramic vibrator 42 is the unilateral composite construction of monolithic piezoelectric ceramic and substrate.
Piezoelectric ceramics in 42 structure of piezoelectric ceramic vibrator is multi-layer piezoelectric body.
Elastic damping 43 is adhered to 42 two sides of piezoelectric ceramic vibrator.
Embodiment five:
In-Ear high pitch provided in this embodiment compensates earphone, is to compensate earphone to the In-Ear high pitch that embodiment one providesFurther improvement, on the basis of Fig. 1 structure；
Piezoelectric ceramic vibrator 42 is biplate piezoelectric ceramics and substrate bilateral composite construction.
Piezoelectric ceramics in 42 structure of piezoelectric ceramic vibrator is single layer piezoelectric body.
Elastic damping 43 is adhered to 42 side of piezoelectric ceramic vibrator.
Embodiment six:
In-Ear high pitch provided in this embodiment compensates earphone, is to compensate earphone to the In-Ear high pitch that embodiment two providesFurther improvement, on the basis of Fig. 2 structure；
Piezoelectric ceramic vibrator 42 is biplate piezoelectric ceramics and substrate bilateral composite construction.
Piezoelectric ceramics in 42 structure of piezoelectric ceramic vibrator is single layer piezoelectric body.
Elastic damping 43 is adhered to 42 two sides of piezoelectric ceramic vibrator.
Embodiment seven:
In-Ear high pitch provided in this embodiment compensates earphone, is to compensate earphone to the In-Ear high pitch that embodiment one providesFurther improvement, on the basis of Fig. 1 structure；
Piezoelectric ceramic vibrator 42 is biplate piezoelectric ceramics and substrate bilateral composite construction.
Piezoelectric ceramics in 42 structure of piezoelectric ceramic vibrator is multi-layer piezoelectric body.
Elastic damping 43 is adhered to 42 side of piezoelectric ceramic vibrator.
Embodiment eight:
In-Ear high pitch provided in this embodiment compensates earphone, is to compensate earphone to the In-Ear high pitch that embodiment two providesFurther improvement, on the basis of Fig. 2 structure；
Piezoelectric ceramic vibrator 42 is biplate piezoelectric ceramics and substrate bilateral composite construction.
Piezoelectric ceramics in 42 structure of piezoelectric ceramic vibrator is multi-layer piezoelectric body.
Elastic damping 43 is adhered to 42 two sides of piezoelectric ceramic vibrator.
Piezoelectric transducer is put by the present invention to be extended in ear canal, and being designed in this way is beneficial to individually control high frequency response, passes throughExtend ear canal, enhances sound directivity, and the fixed form of piezoelectric ceramic vibrator of the present invention is single cantilever beam structure, workFor mode because its other end is free end, vibration displacement is big, is improving frequency characteristic needs compared with the fixed working method in peripheryWhen identical vibration, the piezoelectric ceramic thickness of single cantilever beam structure can be thicker, facilitates the production of easyization piezoelectric ceramics.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extentPipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according toSo be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features intoRow equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solutionThe range of scheme.