CN205491010U - Earphone - Google Patents

Abstract

The utility model relates to an earphone, including casing and loudspeaker body, the casing has the holding of being used for loudspeaker body's cavity, the cavity has the intercommunication housing face's opening, wherein, loudspeaker body has and is close to the first end cover of cavity bottom and with the second end cover that first end cover is relative, second end cover upper shield is equipped with and is used for the shutoff the open -ended rear cover, first end cover with space between the casing forms the preceding operatic tunes, the second end cover with space between the rear cover forms the back operatic tunes, the preceding operatic tunes with the equal independent setting of the back operatic tunes, the rear cover seted up the intercommunication on the surface the back operatic tunes and external a plurality of volume adjustment hole. Compared with the prior art, the utility model provides an earphone when the sound transmission in the operatic tunes is to people's ear in in the front, leaks the sound phenomenon and obviously reduces, and the back operatic tunes can switch on in order to guarantee that inside and outside atmospheric pressure balances with the external world for the sound of earphone output is clear and melodious, in order to provide best tone quality.

Description

Earphone

Technical field

This utility model relates to a kind of earphone.

Background technology

Along with science and technology constantly improves, MP3 walkman, mobile phone, personal digital assistant (PDA) or notebook computer electronics Product is widely used in routine work life, and the requirement of the earphone that people couple are supporting with it is more and more higher, not only requires it The bodily form is small and exquisite, more require it possess can the high-fidelity tonequality performance of the various audio of reproduction true to nature, therefore high-fidelity headphone just becomes For market trend.Additionally, earphone also provides listener's preferably transfer voice, listener is made can clearly to hear and understanding sound Sound content, can cause unsharp situation unlike transmitting sound in atmosphere, and particularly move period at user, such as, exist Motion, drive, strenuous activity or noisy in the environment of be also unaffected.

Traditional earphone, under limited space, it is common that use single horn single body to drive, and having an advantage in that can be by The overall construction design of earphone obtains more compact, to coordinate the headset designs of In-Ear or ear-sticking.But, during owing to wearing The sound leakage phenomenon that earphone can exist, can make tonequality reduce under normal circumstances, have a strong impact on audition comfort level.

Utility model content

Technical problem to be solved in the utility model is to provide a kind of earphone, it is intended to solve in prior art, earphone There is sound leakage phenomenon and cause the best defect of tonequality.

For solving above-mentioned technical problem, this utility model be the technical scheme is that a kind of earphone, including housing and loudspeaker Monomer, described housing has the cavity for housing described horn single body, and cavity has the opening connecting described surface of shell, Wherein, described horn single body has the first end cap bottom described cavity and second end relative with described first end cap Lid, described second end cap is covered with the back cover for blocking described opening, the sky between described first end cap and described housing Between formed before the operatic tunes, the space between described second end cap and described back cover forms the rear operatic tunes, the described front operatic tunes and described rear sound Chamber is all independently arranged, and the surface of back cover offers and connects the described rear operatic tunes and extraneous multiple sound regulating holes.

Further, the described front operatic tunes include the groove being opened in described cavity bottom surface and connect with described groove and for The passage of speaking of transmission sound.

Further, described housing is formed with the sound guide tube for installing ear muff, described in speak passage be positioned at described in lead In sound tube, the end face of described sound guide tube offer with described channel connection of speaking go out acoustic aperture.

Further, described sound guide tube goes out to be provided with Air Filter at acoustic aperture in described.

Further, described back cover includes a curved cover plate and is extended to described cavity bottom surface by described curved cover plate periphery Annular sidewall, the enclosed space between described curved cover plate and described second end cap forms the described rear operatic tunes, multiple sound regulating holes It is opened on described curved cover plate.

Further, described annular sidewall offers the cable-through hole that power supply source connecting line passes.

Further, described horn single body include interconnective upper and lower, described first end cap be positioned at described under The bottom in portion, described second end cap is positioned at the top on described top, and the cross dimensions on described top is more than described bottom；Described recessed It is convexly equipped with on the inwall in chamber for limiting the limiting section slided in described cavity in described top, on the top end face of described limiting section Offer storage glue groove.

Further, described back cover is metal cap.

Further, described second end cap is pasted with a dustproof gasket.

Further, it is provided with a flexible rubber ring between described first end cap and the bottom surface of described cavity.

Being compared with the prior art, the earphone that this utility model provides, the space between the first end cap and housing forms front sound Chamber, the space between the second end cap and back cover forms the rear operatic tunes, the front operatic tunes and the rear operatic tunes and is all independently arranged, so, at the front operatic tunes In transfer voice to time in human ear, leakage sound phenomenon significantly reduces, and the rear operatic tunes can be with external world's conducting to ensure that inner and outer air pressure is put down Weighing apparatus so that it is clear, to provide optimal tonequality that earphone exports.

Accompanying drawing explanation

Fig. 1 is the decomposing schematic representation of the earphone that this utility model embodiment provides；

Fig. 2 is the schematic perspective view of the earphone that this utility model embodiment provides；

Fig. 3 is the cross-sectional schematic in I-I face in Fig. 2.

Main element symbol description

100: earphone 1: housing

2: horn single body 11: cavity

12: opening 21: the first end cap

22: the second end caps 3: back cover

1a: front operatic tunes 1b: the rear operatic tunes

31: sound regulating hole 13: groove

14: passage 15 of speaking: sound guide tube

16: go out acoustic aperture 5: glue frame

23: top 24: middle part

25: bottom 17: limiting section

18: storage glue groove 32: curved cover plate

33: annular sidewall 7: flexible rubber ring

6: dustproof gasket 4: ear pad

Detailed description of the invention

In order to make technical problem to be solved in the utility model, technical scheme and beneficial effect clearer, with Lower combination drawings and Examples, are further elaborated to this utility model.Should be appreciated that concrete reality described herein Execute example only in order to explain this utility model, be not used to limit this utility model.

Below in conjunction with concrete accompanying drawing, realization of the present utility model is described in detail.

As shown in Figure 1 to Figure 3, the preferred embodiment provided for this utility model.

The earphone 100 that the present embodiment provides, including housing 1 and horn single body 2, housing 1 has for housing horn single body 2 Cavity 11, cavity 11 has the opening 12 of connection surface of shell, and wherein, horn single body 2 has bottom close cavity 11 the One end cap 21 and second end cap 22 relative with the first end cap 21, the second end cap 22 is covered with the back cover for blocking opening 12 3, the space between the first end cap 21 and housing 1 forms front operatic tunes 1a, and the space between the second end cap 22 and back cover 3 forms rear sound Chamber 1b, front operatic tunes 1a and rear operatic tunes 1b are and are independently arranged, and after the surface of back cover 3 offers connection, operatic tunes 1b is many with extraneous Individual sound regulating hole 31.

Above-mentioned earphone 100, the space between the first end cap 21 and housing 1 forms front operatic tunes 1a, the second end cap 22 with after Space between cover 3 forms rear operatic tunes 1b, front operatic tunes 1a and rear operatic tunes 1b and is all independently arranged, so, and the sound in front operatic tunes 1a When transmitting to human ear, leakage sound phenomenon reduces, and rear operatic tunes 1b can turn on the external world to ensure inside and outside air pressure balance so that earphone Export is clear, to provide optimal tonequality.

For sake of convenience, hereinafter alleged " left " " right " " on " left and right, the upper and lower of D score and accompanying drawing itself is to one Cause, but structure of the present utility model is not played restriction effect.

See Fig. 1 to Fig. 3, in the present embodiment, earphone 100 includes housing 1, the horn single body 2 that is assemblied in housing 1 and The back cover 3 being located on horn single body 2.

Housing 1, adopts made of plastic, and it has the cavity 11 for housing horn single body 2, and cavity 11 has connection housing The opening 12 on surface, cavity 11 is generally cylindrical.Housing 1 offers a groove 13 in the bottom surface of cavity 11, in groove 13 Bottom surface is provided with one for transmitting the passage 14 of speaking of sound, and passage 14 of speaking connects with groove 13.From figure 3, it can be seen that shell Being formed with a sound guide tube 15 on the outer surface of body 1, passage 14 of speaking is positioned at sound guide tube 15, and the end face of sound guide tube 15 offers Go out acoustic aperture 16 with passage 14 of speaking connects, go out to be also equipped with at acoustic aperture 16 Air Filter (not shown) at sound guide tube 15, dust-proof Net is but is not limited to cloth and knits Air Filter.The outer end of sound guide tube 15 is also equipped with an ear pad 4, and ear pad 4 is fixed on by a glue frame 5 On the outer end of sound guide tube 15.

Horn single body 2 (also referred to as driver or earphone 100 speaker), the horn single body 2 of the present embodiment is but does not limits to In moving-coil type loudspeaker (can also is that moving-iron type loudspeaker, galvanic electricity formula loudspeaker or piezoelectric loudspeaker), moving-coil type loudspeaker are mainly shaken by one Dynamic system (not shown) and a magnetic circuit system (not shown) are constituted.Vibrational system includes vibrating diaphragm (not shown) and coil, and (figure is not Show), magnetic circuit system includes Magnet (not shown) and magnetic conductive part (not shown).Produce because of the change of the signal of telecommunication of input when coil During the change of magnetisation field, the magnetic field of coil can interact with the magnetic field of Magnet and cause the movement of coil, and then drives vibrating diaphragm Produce vibration to send sound.In the present embodiment, horn single body 2 substantially cylindrical the inwall gap with cavity 11 are joined Closing, from Fig. 1 and Fig. 3 it can be seen that it includes top 23, middle part 24 and bottom 25, the diameter on top 23 is more than bottom 25, bottom The bottom of 25 has first end cap 21, and the top on top 23 has second end cap 22.From figure 3, it can be seen that cavity Being convexly equipped with the limiting section 17 limiting top 23 slide downward in cavity 11 on the inwall of 11, limiting section 17 is whole along cavity 11 Circumferencial direction extends, and the top end face of limiting section 17 offers storage glue groove 18, storage circumferentially extending along whole limiting section 17 of glue groove 18. After inserting horn single body 2 in cavity 11, horn single body 2 is whole to be placed in cavity 11, and the first end cap 21 is connected to cavity 11 On bottom surface, and groove 13 and the space spoken in passage 14 are formed front operatic tunes 1a.The sound that horn single body 2 produces primarily enters In front operatic tunes 1a and spread out of by going out acoustic aperture 16.Middle part 24 is inverted cone-shaped structure, including by the bottom edge on top 23 to bottom 25 And the sidewall extended internally, in the middle part of this, 24 shape designs facilitate horn single body 2 to put into housing 1.

Back cover 3, uses metal material to make, is located on the second end cap 22 of horn single body 2 and blocks the opening of housing 1 12.Back cover 3 includes a curved cover plate 32 and is extended downward the annular sidewall 33 of in the middle part of horn single body 2 24 by curved cover plate 32, Enclosed space between curved cover plate 32 and the second end cap 22 forms rear operatic tunes 1b, rear operatic tunes 1b and is with front operatic tunes 1a and independently sets Put.Operatic tunes 1b and extraneous multiple sound regulating holes 31 after connection are offered, after being ensure that by sound regulating hole 31 on curved cover plate 32 Air pressure balance in operatic tunes 1b, and there is the tuning effects such as increase sound field.(figure is not to offer power supply source connecting line on annular sidewall 33 Show) the cable-through hole (not shown) that passes, electric power connection line is connected with horn single body 2 and supplies power for.Top at horn single body 2 The outer surface of 23 and on annular sidewall 33 outer surface of back cover 3 coated with adhesive, then horn single body 2 is connected back cover 3 one With being arranged in cavity 11, coated can the flowing at most of glue is stored up in glue groove 18, then can carry out audio-frequency test after the glue solidifies.

In order to avoid causing damaging when horn single body 2 is installed, between the first end cap 21 and the bottom surface of cavity 11, it is provided with one Flexible rubber ring 7, flexible rubber ring 7 can be silica gel, is fixed on cavity 11 bottom surface by bonding mode, and the middle part 24 of cushion rubber is offered There is the through hole connected with groove 13, so, by flexible rubber ring 7, horn single body 2 is played the effect of buffering, inserting loudspeaker It can be protected after monomer 2, it is to avoid, clash into cavity 11 bottom surface when horn single body 2 is installed and cause damaging.

In order to avoid dust enters in horn single body 2, the second end cap 22 being pasted with a dustproof gasket 6, dustproof gasket 6 can To be sponge or foam is made, its size is suitable with the cross section on top 23, in such manner, it is possible to avoid dust to enter horn single body 2 In, so that horn single body 2 is protected.

These are only preferred embodiment of the present utility model, not in order to limit this utility model, all in this practicality Any amendment, equivalent or the improvement etc. made within novel spirit and principle, should be included in guarantor of the present utility model Within the scope of protecting.

Claims (10)

1. an earphone, including housing and horn single body, described housing has the cavity for housing described horn single body, cavity There is the opening connecting described surface of shell, it is characterised in that described horn single body has first bottom described cavity End cap and second end cap relative with described first end cap, described second end cap is covered with after blocking described opening Cover, the space between described first end cap and described housing forms the front operatic tunes, the sky between described second end cap and described back cover Between formed after the operatic tunes, the described front operatic tunes and the described rear operatic tunes be and be independently arranged, the surface of back cover offers connection described after The operatic tunes and extraneous multiple sound regulating holes.

Earphone the most according to claim 1, it is characterised in that the described front operatic tunes includes being opened in the recessed of described cavity bottom surface Groove and connecting with described groove and for transmitting the passage of speaking of sound.

Earphone the most according to claim 2, it is characterised in that be formed with the leading note for installing ear muff on described housing Pipe, described in passage of speaking be positioned at described sound guide tube, the end face of described sound guide tube offers and the going out of described channel connection of speaking Acoustic aperture.

Earphone the most according to claim 3, it is characterised in that described sound guide tube in described go out be provided with at acoustic aperture dust-proof Net.

Earphone the most according to claim 1, it is characterised in that described back cover includes a curved cover plate and by described arc covers The annular sidewall that plate periphery extends to described cavity bottom surface, the enclosed space shape between described curved cover plate and described second end cap Becoming the described rear operatic tunes, multiple sound regulating holes are opened on described curved cover plate.

Earphone the most according to claim 5, it is characterised in that offer power supply source connecting line on described annular sidewall and pass Cable-through hole.

Earphone the most according to claim 1, it is characterised in that described horn single body include interconnective top and under Portion, described first end cap is positioned at the bottom of described bottom, and described second end cap is positioned at the top on described top, breaking of described top Face size is more than described bottom；It is convexly equipped with on the inwall of described cavity for limiting the limit slided in described cavity in described top Position portion, the top end face of described limiting section offers storage glue groove.

Earphone the most according to claim 1, it is characterised in that described back cover is metal cap.

Earphone the most according to claim 1, it is characterised in that be pasted with a dustproof gasket on described second end cap.

Earphone the most according to claim 1, it is characterised in that set between described first end cap and the bottom surface of described cavity It is equipped with a flexible rubber ring.