Summary of the invention
The technical problem to be solved by the present invention is to overcome prior art disadvantage, provide a kind of earplug of earpiece application, structureRationally, practical, good airproof performance is effectively improved sound quality, improves user experience.
In order to solve the above technical problems, technical solution provided by the invention are as follows: a kind of earplug of earpiece application, including earMachine, the earphone are made of main body, nozzle and optional cable, and the main body includes driver, and the driver includes at leastOne for receiving audio signal from cable and converting audio signals into the energy converter of sound, while the driver can also be withBy receiving wireless audio signal and wireless audio signal being converted to sound, the nozzle include sound be advanced through it is hollowInside, the nozzle and main body is integrally formed or independent connecting structure are connected by way of frictional fit on the nozzleEarplug, the earplug include outer surface, are sized and shaped for so that when earplug is mounted on nozzle, earplug and nozzleIt can be inserted in ear canal, so that the wall of the outer surface nib contacts ear canal of earplug, the earplug further includes opening, and sound is by openingMouth is sent to transmission ear canal and the inner ear towards user, the earplug include inner core and outer cover, and the outer cover is by foam or rubberGlue material is made, and for the shape and design of outer cover so that outer cover is contacted and contracted by the wall pressure of ear canal, the inner wall of inner core limits sound canBy hollow cavity, to be equipped with inner core rear end at the earplug and nozzle friction mating connection by it, sound by nozzle according toSecondary transferring, hollow inner cavity, opening.
As an improvement, the inner core in the earplug includes tubaeform front end and cylindrical part, the tubaeform shape front endIt is connected between cylindrical part by conical section transition, the conical section and front end formation right cone body, at the front endIt is open equipped with front end inner core, is greater than the opening of inner core rear end, the outer cover includes front covering, and the front covering prolongsIt stretches and crosses front end connection front end inner core opening, the rear inner core opening engaging lug machine nozzle.
As an improvement, the inner core only includes cylindrical part.
As an improvement, the inner core extends to or the whole length beyond setting earplug, opening setting being aligned orProtrude outer cover.
As an improvement, the front end inner core opening on the earplug is equipped with ear wax protective device, the ear wax protective deviceIt is made of the material of high ventilating performance, the outer cover is made using all or part of by foamed material, and the foam is memory bubbleFoam material applies antimicrobial coating on the foamed material.
As an improvement, the outer cover of the earplug includes back segment and leading portion, coupling part is equipped between the back segment and leading portion,Selection is equipped with one or more interludes between the back segment and leading portion, and connection is equipped between the interlude and back segment, leading portionPart, the back segment, leading portion and interlude can be bent relative to each other, and the back segment, leading portion and interlude outer profile are cylinderShape, oval, paraboloid or polyhedron, the radius of curvature of the back segment are less than the radius of curvature of leading portion, and the coupling part hasReduced thickness portions.
As an improvement, inner core opening in front end may be configured as cylindrical part, the diameter of the inner core front end in the earplugIt is bigger than the diameter of cylindrical part.
As an improvement, the preceding inner core opening cutting at a certain angle and oval.
As an improvement, the preceding inner core opening is equipped with one or more side openings.
As an improvement, the inner core extends beyond outer cover.
The advantages of the present invention over the prior art are that: the earplug in the present invention provides the sound for passing to user's improvementQuality provides the comfort for improving the cooperation of earplug and ear canal for user, is designed to its opening not by when earplug is inserted into ear canalWhen hinder, the profile of earplug is designed to the improved procedure being consistent with ear canal, and structurally reasonable, practical, good airproof performance effectively changesKind sound quality, improves user experience.
Detailed description of the invention
Fig. 1 is the schematic diagram of use state of the present invention；
Fig. 2A is a form of schematic cross sectional views of earplug of the present invention；
Fig. 2 B is the schematic cross sectional views of another earplug of earplug of the present invention；
Fig. 2 C is the schematic cross sectional views of another earplug of earplug of the present invention；
Fig. 2 D is the schematic cross sectional views of another earplug of earplug of the present invention；
The schematic cross sectional views of another earplug of Fig. 2 E earplug of the present invention；
Fig. 3 is the perspective schematic view of earplug of the present invention；
Fig. 4 A is another schematic side elevation of earplug of the present invention；
Fig. 4 B is another schematic side elevation of earplug of the present invention；
Fig. 4 C is the status diagram that earplug of the present invention uses Fig. 4 A；
Fig. 5 A is the schematic cross sectional views of the another form of earplug of earplug of the present invention；
Fig. 5 B is the schematic cross sectional views of the another form of earplug of earplug of the present invention；
Fig. 5 C is the schematic cross sectional views of the another form of earplug of earplug of the present invention；
Fig. 5 D is the schematic cross sectional views of the another form of earplug of earplug of the present invention；
Fig. 5 E is the schematic cross sectional views of the another form of earplug of earplug of the present invention；
Fig. 6 A is the schematic diagram for the form of nozzle that earplug of the invention is connected to earphone；
Fig. 6 B is the schematic diagram for being inserted into the form in Fig. 6 A use in ear canal simultaneously；
Fig. 7 A is a form of diagrammatic cross-section fragmentary present invention of earplug；
Fig. 7 B is a form of diagrammatic cross-section fragmentary present invention of earplug；
Fig. 7 C is a form of diagrammatic cross-section fragmentary present invention of earplug；
Fig. 7 D is a form of diagrammatic cross-section fragmentary present invention of earplug.
Specific embodiment
Present invention will be described in further detail below with reference to the accompanying drawings.
The present invention relates to earplugs, and particularly, the present invention relates to a kind of earplugs of earpiece application, although showing in this contextEarplug used to earphone with description, but the present invention be also in other cases it is useful, therefore, the present invention be not intended to byThe example and embodiments described herein being defined in.
Fig. 1 shows a kind of earplug 100 of the invention of basis, and earphone 105 is by main body 110, nozzle 115 and optionalCable 120 forms, and main body 110 can generate sound comprising equipment, for example, main body 110 can accommodate driver, the driver packetOne or more various known energy converters are included, audio signal is received from cable 120 and converts audio signals into sound, such asAs known in the art or driver can receive wireless audio signal and wireless audio signal be converted to sound, will produceRaw sound is guided by nozzle 115 outward from main body 110, and nozzle 115 includes the hollow inside that sound is advanced through, nozzle115 can be integrally formed with main body 110, or can be the component individually connected, in one form, nozzle 115 and main body110 be the single-piece of injection molding, and nozzle 115 is usually rigid, because of its resistance to deformation between normal earphone validity period.
Earplug 100 includes hollow inside, and received exterior section, nozzle 115 is as described below, so that earplug 100 is to connectIt closes the mode of 115 frictional fit of nozzle or can connect in any other manner, earplug 100 has outer surface 125, sizeWhen being designed so that as earplug 100 with shape and being mounted on nozzle 115, earplug 100 and nozzle 115 be can be inserted in ear canal 130,So that the wall 131 of the 125 nib contacts ear canal 130 of outer surface of earplug 100, earplug 100 are compressible and by ear canals 130Wall 131 compresses, so that it is maintained in ear canal 130 in place, earplug 100 further includes opening 135, although generating in main body 110And the sound conveyed by nozzle 115 can be sent to transmission ear canal 130 and towards the inner ear of user 132, utilize the present inventionEarplug 100, opening 135 will not when earplug 100 be inserted into ear canal 130 and securely when be blocked, protected by the wall 131 of ear canalHold it is in place, it is described further below, be open 135 the improvement for being sized and shaped for being capable of providing voice transmission.
Earplug 100 includes inner core 140 and outer cover 145, and inner core 140 can be elastomer or other materials are made, and byOuter cover 145 made of relatively stiff material, outer cover 145 can be made of foam or rubber material etc..In a particular formIn, outer cover 145 includes memory-foam material, such as polyurethane.The shape and design of outer cover 145 are so that the contact of outer cover 145 and quiltThe wall 131 of ear canal 130 compresses, so that earplug 100 is fixed in ear canal 130, the sound that the inner wall 150 of inner core 140 defines canTo pass through its traveling hollow cavity 155.Inner core rear end 160 is connected to the nozzle 115 of earphone 105, so that the inside of nozzle and earPlug 100 hollow cavity 155 be connected to, in one embodiment, rear end 160 can by frictional fit engage in a manner of fanging noz(zle)115, the sound generated in main body 110 is transmitted to hollow cavity 155 by nozzle 115, is then directed through in earplug 100Opening 135, the opening that an advantage of earplug 100 of the invention is when earplug be inserted into ear canal when, the opening 135 of earplug 100It will not be blocked, nozzle 115 is inserted into from the opening of the rear end of earplug 100 160, and obstruction opening is that outer layer 145 becomes during wearingShape and cover opening 135 a part opening 135 so that opening 135 have than earplug 100 be open smaller area orCross sectional dimensions.In traditional ear plug design, inner core is extended on the front end of foam deck, as a result the compression of ear canal 130Lead to the opening of bubble blockage earplug 100.This obstruction causes audio distortions by the main body 110 in earphone 105 from nozzle 115Energy converter sends the sound by air pressure, and when air pressure encounters opening when size reduces, generation turbulent flow, turbulent flow will lead to torsionSong, high frequency are especially decayed, and sound articulation reduces, the present invention, it is ensured that sound eliminates this mistake of sound by opening 135It really keeps unimpeded without hindrance.
Fig. 2A shows the earplug 100 with without hindrance opening 135 and designs.In the form of Fig. 2A, inner core 140 includes loudspeakerThe front end 165 of shape, inner core 140 have cylindrical part 170, and then its transition portion is conical section 175, limit front end165 and tapered portion 175 be right cone body, or can be it is curved, flaring front end 165 have front end inner core opening 180, be greater thanThe opening of inner core rear end 160, further, outer cover 145 may include front covering 190, extend across front end inner core opening 180By the front covering 190 of offer, ear canal 130 can cosily receive sound, the compression and change of middle front part from earplug 100Shape 190 is sufficiently small so that it will not interfere opening 135, be open 135 size when front 190 is compressed, maintain like bigOr the size of the opening of the inner cavity 155 for the size nozzle opening or inner core being greater than.
Fig. 2 B to 2E shows the other forms of earplug 100, and wherein the design of earplug 100 prevents opening 135 in fig. 2Obstruction be inserted into the earpiece portion of ear canal 130, in the whole length for the earplug 100 that the embodiment of Fig. 2 B, inner core 140 extend,Front 190 can stop opening 135 without outer cover 145.The type of Fig. 2 C is with similar Fig. 2 B, but inner core 140 extends beyondOuter cover 145 is to further ensure that opening 135 does not hinder.The embodiment of 2D and 2E is analogous respectively to the embodiment of 2B and 2C, butIt is inner core replacement of the inner core 140 by complete cone of flaring, 135 obstruction of opening is prevented by the front 190 of elimination.OutsideIt covers in 145 one embodiment of the present of invention, front end inner core opening 180 is greater than rear end inner core opening 182, rear inner core opening 182Engaging lug machine nozzle 115, therefore, the size of rear end inner core opening 182 generally correspond to the outlet size of nozzle 115.By makingThe size of front end inner core opening 180 is greater than rear end inner core opening 182, improves sound transmission quality.By opening front end inner coreMouth 180 is greater than rear end inner core opening 182, reduces air pressure and therefore reduces the acoustic impedance at front end inner core opening 180The more extraction that the reproducing waveform of loudspeaker drive passes through, front end inner core opening 180 at air pressure reduce.
Fig. 3 shows a kind of form ear wax protective device 210 equipped with earplug 100 of the invention, ear wax protective device210 can be made of the material of high ventilating performance, such as foam, fabric, paper, cloth, net etc. made of plastics or metal wire, andIt can be positioned at or near front end inner core opening 180.For example, ear wax shield 210 can be located in front end inner core opening 180Front end inner core opening 180 top or it is interior it is intracavitary before 155.The cylinder that ear wax protective device 210 can position is at inner core 140Divide in 170 or in the conical portion 175 of inner core 140.Outer cover external ear 145 includes 125, when earplug 100 is inserted into ear canal 130,Outer surface 125 is contacted with the wall 131 of ear canal 130, outer cover 145 can by entirely or partly, compressible material is made, such asFoam 220.In a specific form, middle foam 220 includes memory-foam material, such as polyurethane, visco-elasticity polyurethane or lowFlexible polyurethane foam body, latex, polyester etc..220 mold of foam is then returned to its original-shape to the profile of ear canal 130When being taken out from the environment of compression.In pattern shown in Fig. 3, outer cover 145 is made of single piece of foam 220 completely.Alternatively, outer cover145 can be by including that the multiple material of foam 220 is made.For example, foam 220 can be in another example, foam 220 can be withBe the internal layer of outer cover 145, and different materials can be covered by another, for example, different foams or rubber material or certainThe coating of form.In one embodiment, outer cover 145 is made of two or more materials.Inner foam material 220 is coated with anti-Bacterium material outer layer.Earplug 100 is and ear canal dominant touch and contacts with earwax.Foamed material 220 is not easy to clean.Foamed materialAdverse reaction can be played with alcohol, it is therefore desirable to wash with water, still, after water cleaning, foamed material takes a long timeIt could sufficiently dry so as to optimal use.By applying antimicrobial coating to foamed material 220, earplug 100 does not need often to clean.Can be spraying using water base applying coating during fabrication, chamber plasma gas vapor deposition of stopping writing is passed through by using nanometer activatorFinished product earplug 100, by using comprising antibacterial agent or metal ion compound by metal ion compound before the polymerizationIt is mixed into the modes such as foamed medium.
In form shown in Fig. 4 A, earplug 100 has the outer cover 145 constituted by more than one section, such as back segment 230It is that connection coupling part 240 allows back segment 230 and leading portion 235 relative to that between back segment 230 and leading portion 235 with leading portion 235This bending.Another form of earplug its with back segment 230 and leading portion 235, in the form of Fig. 4 B, there is also one or moreInterlude 245, back segment 230 are connected to interlude 245 by interlude 245, and coupling part 240 and interlude 245 pass through anotherA to be connected to front section 240, each section can be bent relative to each other.The segmented version of earplug 100, for example, Fig. 4 A andIn those of shown 4B, improvement of the earplug 100 in ear canal 120 is allowed to cooperate, 4C as shown in the figure, leading portion 235 relative to instituteIt states to be bent to back segment 230 and allows section to meet ear canal 120, and the earplug 100 of the improved sealing ear canal 120 in offer.For example,Sealing is in a manner of isolation environment noise improvement, and furthermore by improved sealing, leakage is less, reduces bass and audio matterAmount.If sealing is interrupted, bass will be that first sound quality is interfered, and furthermore can hear outside environmental sounds and can be withInterfere music.The one or more of section posterior segment 230, leading portion 235 and interlude 245 has different outer and another sectionsChamfered shape.For example, back segment 230 has at least partially conical outer profile, and leading portion 235 in the form of Fig. 4 AIt is at least partially spherical.In the form of Fig. 4 B, interlude 245 also has at least partly conical outer profile.In substitution shapeIn formula, the outer profile of one or more of section posterior segment 230, leading portion 235 and interlude 245 can be cylinder, oval,Paraboloid or polyhedron.The different exterior contours of section are also possible to from the chamfered shape with same type, but difference is madeSize part slope, all sections can be same or similar.
Fig. 5 A to 5E shows the cross-sectional view of the earplug 100 with segmentation, in each of 145 Fig. 5 A to 5E of outer coverFig. 2A to 2E inner core 140 that core 140 is analogous respectively to, in this embodiment, back segment 230 and leading portion 235 all have Part-sphericalOuter profile but there is different radius of curvature, in the form shown in, the radius of curvature of back segment 230 is less than the song of leading portion 235Rate radius, coupling part 240 have reduced thickness portions 250, and back segment 230 is allowed to be bent relative to leading portion.
Fig. 6 A, which is shown, to be mounted on traditional 100 nozzle 115 of earplug, and Fig. 6 B, which is shown, is inserted into 130 schematic diagram of ear canal.
The earplug 100 and nozzle 115 of Fig. 7 A distal section 235 and outer proximal end region as described in can be seen that in figure 7b230 lids 145 of section can be compressed relative to each other and are bent.This double action compression and curved permission outer cover 145 preferably accord withThe shape ear canal 120 of conjunction.When outer cover 145 deforms, inner core 140 remains unchanged shape.It can also be seen that outer cover 145 from Fig. 7 BThe earplug 100 that will not interfere of deformation 135, Fig. 7 A to 7D that is open show the alternative form of the design of inner core 140.All theseIn embodiment, what the form that the area of front end inner core opening 180 is greater than rear end inner core opening 182, Fig. 7 A was similar to tubaeform is openedMouth is discussed above, but horn mouth is replaced by cylindrical part 310, and the diameter of 140 front end of inner core is more straight than cylindrical part 170Diameter is big.In the form of Fig. 7 B, the preceding cutting and oval 320 at a certain angle of inner core opening 180, ellipse 320 forms ratioIn the round in the form of Fig. 7 C of place, front end inner core opening 180 includes one or more side openings 330, open-ended rulerVery little summation opening is big.Increase to the region greater than rear inner core opening 182 with side opening 330.The form of Fig. 7 D is similar to 7A'sForm, but inner core 140 extends beyond outer cover earplug 100 of the invention can be used known fabrication techniques, such as squeeze out and/or notePenetrate molding.Embodiment 140 for core is entirely cylinder, and core 140 can be extruded, be cut into specific length, then assembleIn outer cover 145.For the asymmetric embodiment of core 140, core 140 can be made through injection moulding, then can be individuallyIt is embedded in the polymerization process of foam 220 in outer cover 145.
The present invention and its embodiments have been described above, this description is no restricted, shown in the drawingsOnly one of embodiments of the present invention, actual structure is not limited to this.All in all if the ordinary skill of this fieldPersonnel are enlightened by it, without departing from the spirit of the invention, are not inventively designed and the technical solution phaseAs frame mode and embodiment, be within the scope of protection of the invention.