CN104244130B - A kind of earphone - Google Patents

A kind of earphone Download PDF

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Publication number
CN104244130B
CN104244130B CN201410453417.3A CN201410453417A CN104244130B CN 104244130 B CN104244130 B CN 104244130B CN 201410453417 A CN201410453417 A CN 201410453417A CN 104244130 B CN104244130 B CN 104244130B
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China
Prior art keywords
cavity
bass
earphone
main
loudspeaker monomer
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CN201410453417.3A
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Chinese (zh)
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CN104244130A (en
Inventor
赵燕鹏
郑文团
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Goertek Inc
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Goertek Inc
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Abstract

The invention discloses a kind of earphones, and including loudspeaker monomer, the audio signal wire being electrically connected with the loudspeaker monomer stores the protecgulum of the shell and laying of the loudspeaker monomer on the housing;Space between the protecgulum and the loudspeaker monomer forms the preceding operatic tunes, and the space between the shell and the loudspeaker monomer forms the rear operatic tunes;The wherein described rear operatic tunes is separated by partition for main back cavity and bass back cavity, acoustic conducting pipe is laid in the cavity of the bass back cavity, the curvilinear bending of acoustic conducting pipe is filled in the cavity of the bass back cavity, its one end is connected by the through hole of the partition with the main back cavity, and the other end is in communication with the outside by the acoustic aperture of rushing down on chamber enclosure after the bass.The Headphone structure that the technical program provides effectively raises the low frequency performance and frequency performance of earphone, and on the basis of earphone stability is ensured, makes earphone tool shape more attractive.

Description

A kind of earphone
Technical field
The present invention relates to audio frequency apparatus technical field, more particularly to a kind of earphone with bass back cavity.
Background technology
As the portable electronic products such as high-quality smart mobile phone, Pad are widely used in routine work life, people couple The requirement of the earphone mating with it is also higher and higher, not only requires its bodily form compact, it is more required, which to possess, true to nature to reproduce respectively The high-fidelity tonequality performance of kind audio, therefore high-fidelity headphone just becomes market trend.Earphone is divided by the difference of wearing mode In-Ear, ear-sticking and half In-Ear, due to built-in earplug wearing comfort is poor, use when background sound is perceived not Foot and caused by potential security risk and hearing protection is considered, ear-sticking and half built-in earplug are increasingly disappeared The welcome of the person of expense.
Naturally occurring sound leakage between earphone and duct, can cause ear-sticking/partly enter under normal conditions during due to wearing The low frequency performance deficiency of aural headphone.Existing solution is typically the ruler by increasing the extension for accommodating audio signal wire It is very little so that audio signal wire extension becomes the acoustic conducting pipe for possessing enhancing bass effect;It is or same in audio signal wire extension Direction increases a connection back cavity volume and extraneous acoustic conducting pipe structure.But such that earphone size is larger, U.S. is influenced It sees, and since audio signal wire is usually fixed on by way of knot in back cavity, knot can cause acoustic conducting pipe in various degree Blocking so as to influencing implementation result.
The content of the invention
An embodiment of the present invention provides a kind of earphone, with solve the low frequency performance of earphone in the prior art is poor, size greatly Problem.
In order to achieve the above objectives, the technical proposal of the invention is realized in this way:
The present invention provides a kind of earphones, including loudspeaker monomer, the audio signal being electrically connected with the loudspeaker monomer Line stores the protecgulum of the shell and laying of the loudspeaker monomer on the housing;The protecgulum and the loud speaker list Space between body forms the preceding operatic tunes, and the space between the shell and the loudspeaker monomer forms the rear operatic tunes;
It is main back cavity and bass back cavity that the operatic tunes is separated by partition after described, and several through holes are provided on the partition, are used for Connect the bass back cavity and the main back cavity;
The main back cavity stores the loudspeaker monomer, and the sound regulating hole being in communication with the outside is provided in cavity wall;
The shell of the bass back cavity away from the loudspeaker monomer position be provided be in communication with the outside rush down acoustic aperture;
Acoustic conducting pipe, through hole and institute of the described acoustic conducting pipe one end by the partition are laid in the cavity of the bass back cavity It states main back cavity to be connected, the other end is in communication with the outside by the acoustic aperture of rushing down on chamber enclosure after the bass.
Preferably, the loudspeaker monomer includes vibrational system and magnetic circuit system, and the vibrational system includes vibrating diaphragm;Institute The monomer shell for stating loudspeaker monomer is equipped with perforate, allow air-flow on rear side of the vibrating diaphragm by the perforate with it is described after The operatic tunes connects.
Preferably, the bass back cavity is made of the main body and separated side cover with earphone one, wherein described Lining lid of the side cover by outer cover and inside outer cover is formed.
Preferably, acoustic conducting pipe bending is layed in after the bass on cavity main body, common by leading sound track and the lining lid It surrounds;The sound track of leading includes the curvilinear tool at regular intervals two extended in the same direction on cavity main body after the bass A parallel side wall composition, its one end are connected by the through hole on the partition with the main back cavity, and the other end passes through the bass The acoustic aperture of rushing down on chamber enclosure is in communication with the outside afterwards;The side wall is equipped with several positioning columns, for serving as a contrast lid described in location and installation.
Preferably, the sound track of leading is arranged at after the bass on the madial wall of cavity main body, with cavity main body after the bass Integrated injection molding.
Preferably, the lining lid is metal material or plastic material, passes through stickup or ultrasonic bonding with the sound track of leading Mode secure bond.
In the above-mentioned technical solutions, the shell includes only playing the extension for accommodating the audio signal wire, described to prolong Extending portion one end is the partition, and the audio signal wire is placed in by the tone frequency channel wire threading port on the partition in the main back cavity And be electrically connected with the loudspeaker monomer, the extension other end is fixed part, and the fixed part is fixed with the extension With reference to collectively forming earphone handle with the extension, the audio signal wire is then passed through the fixation after passing through the extension Portion, and the fixation to the audio signal wire is realized by the fixed part.
Preferably, the internal diameter of the extension and the outer diameter of the audio signal wire approach.
Preferably, the earphone is additionally provided with the damping sheets that acoustic aperture is rushed down described in covering;The damping sheets are bonded in described After bass on the madial wall of cavity main body, it is mainly used for dust-proof;The earphone is additionally provided with the tuning sheet material for covering the sound regulating hole, institute It states tuning sheet material to be bonded on the madial wall of the shell, is mainly used for adjusting acoustical behavior.
The advantageous effect of the embodiment of the present invention is:Compared with the earphone of traditional structure, earphone provided in an embodiment of the present invention The rear operatic tunes is divided into main back cavity and a bass back cavity for enhancing earphone bass effect by increasing partition, and in the bass back cavity Cavity in be laid with curvilinear curved acoustic conducting pipe, to make full use of the spatial volume of the bass back cavity, so that earphone Bass performance it is more excellent, meanwhile, and can achieve the purpose that improve earphone intermediate frequency tonequality.
In preferred embodiment, the earphone further includes the extension for only playing and accommodating audio signal wire, the ear with traditional structure Machine is compared, and the extension does not have the structure of the operatic tunes and extraneous bass boost pipe after connection and need not prolong described The through hole for setting connection extraneous in extending portion, and by connecing the internal diameter of the extension and the outer diameter of the audio signal wire Closely, the Outside Dimensions for making earphone handle are smaller, advantageously ensure that product has good appearance;Simultaneously as the acoustic conducting pipe and The audio signal wire is accommodated by different structure, avoids interference of the factor due to audio signal wire knot to acoustic conducting pipe, from And ensure the stability of earphone.
Description of the drawings
Fig. 1 is each component decomposition texture schematic diagram of earphone provided in an embodiment of the present invention;
Fig. 2 is earphone dimensional structure diagram provided in an embodiment of the present invention;
Fig. 3 is earphone appearance diagram provided in an embodiment of the present invention;
Fig. 4 is earphone bass back cavity dimensional structure diagram provided in an embodiment of the present invention;
Fig. 5 is earphone bass back cavity stereochemical structure schematic top plan view provided in an embodiment of the present invention;
Wherein identical reference numeral indicates identical part.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to embodiment party of the present invention Formula is described in further detail.
The present invention is to provide a kind of ear-sticking and the structures of half In-Ear Headphones enhancing bass acoustic performance, need not put It doubts, other headset types can also carry out the design of bass acoustic performance boost according to the principle that following embodiments are illustrated.
If Fig. 1~Fig. 5 is jointly shown, earphone provided in an embodiment of the present invention includes loudspeaker monomer 101, raises one's voice with described The audio signal wire 102 that device monomer 101 is electrically connected is stored the shell 1 of the loudspeaker monomer 101 and is laid on described outer Protecgulum 2 on shell 1, wherein the loudspeaker monomer 101 includes vibrational system and magnetic circuit system, the vibrational system includes shaking Film;The protecgulum 2 is arranged at the one side of 101 vibrating diaphragm of loudspeaker monomer, with the space shape between the loudspeaker monomer 101 Into the preceding operatic tunes II, the preceding operatic tunes II is connected with the acoustic aperture that goes out on the protecgulum 2, the sound for generating the loudspeaker monomer 101 Sound can be for transmission to the external world;The shell 1 is located at one side of the vibrating diaphragm away from the protecgulum 2, with the loudspeaker monomer 101 Between space form the rear operatic tunes I;The loudspeaker monomer 101, which further includes, accommodates the fixed vibrational system and magnetic circuit system Monomer shell, the monomer shell are equipped with perforate, allow air-flow on rear side of the vibrating diaphragm by the perforate with it is described after The operatic tunes I connects.
It is main back cavity 11 and bass back cavity 12 that the operatic tunes I is separated by partition after described, and several through holes are provided on the partition, For connecting the bass back cavity 12 and the main back cavity 11;The main back cavity 11 stores the loudspeaker monomer 101, cavity wall On be provided with the sound regulating hole 400 being in communication with the outside;
The shell of the bass back cavity 12 away from the loudspeaker monomer 101 position be provided be in communication with the outside rush down sound Hole 300;Acoustic conducting pipe 301 is laid in the cavity of the bass back cavity 12, described 301 one end of acoustic conducting pipe passes through the logical of the partition Hole 201 is connected with the main back cavity 11, and the other end is in communication with the outside by the acoustic aperture 300 of rushing down on 12 shell of bass back cavity.
In one preferred embodiment, the curvilinear bending of acoustic conducting pipe 301 is filled in the cavity of the bass back cavity 12, To make full use of the volume of the bass back cavity 12.
In another preferred embodiment, the bass back cavity 12 is by 13 part of main body and separated side cover structure with earphone one Into wherein the side cover is made of outer cover 16 and the lining lid 15 inside outer cover 16.Specifically, the acoustic conducting pipe 301 is bent It is layed in 12 main body 13 of bass back cavity, is surrounded jointly by leading sound track and the lining lid 15;The sound track of leading includes being arranged on Curvilinear tool two parallel side walls 303 at regular intervals extended in the same direction in 12 main body 13 of bass back cavity form, Its one end is connected by the through hole on the partition with the main back cavity 11, and the other end passes through on 12 shell of bass back cavity Acoustic aperture 300 is rushed down to be in communication with the outside;The side wall 303 is equipped with several positioning columns 304, for serving as a contrast lid 15 described in location and installation;Its Described in serve as a contrast lid 15 can be metal material, lead sound track secure bond by way of stickup with described;Or be plastic material, with It is described to lead sound track secure bond by way of stickup or ultrasonic bonding, to ensure the air-tightness of the acoustic conducting pipe 301, so as to Ensure the bass effect of the earphone;The outer cover 16 and the lining fixed knot by way of gluing or ultrasonic welding of lid 15 It closes.
Preferably, the sound track of leading is arranged on the madial wall of 12 main body 13 of bass back cavity, with the bass back cavity 12 main body, 13 integrated injection molding.
The preferred embodiment, by the way that the curvilinear bending of the acoustic conducting pipe 301 is filled in the bass back cavity 12 Sound track is led in cavity, while described in use and 15 secure bond of the lining lid forms the acoustic conducting pipe 301, it is described to make full use of The volume of bass back cavity 12 so as to ensure the inside dimension of the acoustic conducting pipe 301, improves the accuracy for manufacturing the earphone.
It should be noted that the earphone is additionally provided with the damping sheets 302 that acoustic aperture 300 is rushed down described in covering, the damping fin Material 302 is bonded on the madial wall of 12 main body 13 of bass back cavity, is mainly used for dust-proof;The damping sheets 302 for screen cloth, The smaller sound-resistance material of the acoustic impedances such as sponge or non-woven fabrics can reduce the acoustic impedance of the damping sheets 302 to greatest extent Damage to 301 low-frequency effect of acoustic conducting pipe.
The earphone is additionally provided with the tuning sheet material 401 for covering the sound regulating hole 400, and the tuning sheet material 401 is bonded in institute On the madial wall for stating shell 1, it is mainly used for adjusting acoustical behavior;The tuning sheet material 401 is the sound such as screen cloth, sponge or non-woven fabrics Material is hindered, the parameter of the sound-resistance material can be adjusted with the impedance of the acoustic conducting pipe 301 and the impedance matching of the main back cavity 11 The acoustical behavior of the earphone intermediate frequency.
The length of the acoustic conducting pipe 301 is in the numberical range of 1mm-100mm, and internal diameter is in the numberical range of 0.1mm-10mm It is interior, make the ratio between acoustic mass and the impedance of the acoustic conducting pipe 301 sufficiently large, the acoustic conducting pipe 301 in sufficiently low low frequency band Acoustic impedance dominated by acoustic mass, form best low frequency sound effect;The acoustic mass of wherein described acoustic conducting pipe 301 is with its length into just Than with square being inversely proportional for its internal diameter, the impedance of the acoustic conducting pipe 301 is directly proportional to its length, anti-with 4 equation of n th order n of its internal diameter Than the length of the acoustic conducting pipe 301 refers to the length of its center line, and internal diameter refers to the acoustic conducting pipe 301 being equivalent to cross section After the identical round tubular structure of product, the inside diameter of the tubular structure;Make the bass back cavity 12 for including the acoustic conducting pipe 301 The damping of sufficiently large acoustic mass and magnificence, the acoustic mass string with the loudspeaker monomer 101 can be provided for the earphone After connection, and the 101 pliable generation resonance of loudspeaker monomer, to improve the low-frequency effect of the earphone.
Another preferred embodiment, the shell 1 further include the extension 20 for only playing and accommodating the audio signal wire 102, The internal diameter of the extension 20 and the outer diameter of the audio signal wire 102 approach;Described 20 one end of extension be the partition, institute Audio signal wire 102 is stated to be placed in the main back cavity 11 by the tone frequency channel wire threading port 202 on the partition and raise one's voice with described Device monomer 101 is electrically connected, and 20 other end of extension is fixed part 21, the fixed part 21 and 20 fixed knot of extension Close, earphone handle collectively formed with the extension 20, the audio signal wire 102 pass through be then passed through after the extension 20 it is described Fixed part 21, and the fixation to the audio signal wire 102 is realized by the fixed part 21.
In this preferred embodiment, since the extension 20 only plays the role of accommodating the audio signal wire 102, do not have Have with connected in traditional structure after the structures such as the operatic tunes I and extraneous bass boost pipe, and the internal diameter of the extension 20 and institute The outer diameter for stating audio signal wire 102 approaches, and therefore, the size of the extension 20 can set smaller, meet particular case Under requirement to earphone appearance;Again because need not set connection is extraneous to open on the extension 20 or the fixed part 21 Hole, the Outside Dimensions that can make earphone handle are smaller, therefore the earphone in the present embodiment has better appearance.
In above preferred embodiment, because of the acoustic conducting pipe 301 from the audio signal wire 102 by different structure receipts It receives, avoids the influence of the factors such as knot during headset designs, also avoid audio signal wire 102 to the dry of acoustic conducting pipe 301 It disturbs, ensure that the stability of entire earphone.
In conclusion compared with the earphone of traditional structure, earphone provided in an embodiment of the present invention is by increasing partition by after The operatic tunes is divided into main back cavity and plays the bass back cavity of enhancing earphone bass effect, and is laid in the cavity of the bass back cavity in song The curved acoustic conducting pipe of wire, to make full use of the spatial volume of the bass back cavity, so that the bass performance of earphone is more excellent, Meanwhile and it can achieve the purpose that improve earphone intermediate frequency tonequality.Furthermore it is preferred that in scheme, the earphone, which further includes, only plays receipts Hold the extension of audio signal wire, compared with the earphone of traditional structure, the extension does not have the operatic tunes and the external world after connection The structure of bass boost pipe and the through hole that need not set connection extraneous on the extension, and by making described prolong The internal diameter of extending portion and the outer diameter of the audio signal wire approach, and the Outside Dimensions for making earphone handle are smaller, advantageously ensure that product has There is good appearance;Simultaneously as the acoustic conducting pipe and the audio signal wire are accommodated by different structures, avoid due to audio Interference of the factor of signal wire knot to acoustic conducting pipe, so as to ensure the stability of earphone.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the scope of the present invention.It is all Any modifications, equivalent replacements and improvements are made within the spirit and principles in the present invention, are all contained in protection scope of the present invention It is interior.

Claims (8)

1. a kind of earphone, including loudspeaker monomer, the audio signal wire being electrically connected with the loudspeaker monomer is raised one's voice described in storage The protecgulum of the shell and laying of device monomer on the housing;Space shape between the protecgulum and the loudspeaker monomer Into the preceding operatic tunes, the space between the shell and the loudspeaker monomer forms the rear operatic tunes;It is characterized in that,
It is main back cavity and bass back cavity that the operatic tunes is separated by partition after described, several through holes is provided on the partition, for connecting The bass back cavity and the main back cavity;
The main back cavity stores the loudspeaker monomer, and the sound regulating hole being in communication with the outside is provided in cavity wall;
The shell of the bass back cavity away from the loudspeaker monomer position be provided be in communication with the outside rush down acoustic aperture;
Acoustic conducting pipe is laid in the cavity of the bass back cavity, the curvilinear bending of acoustic conducting pipe is filled in the bass back cavity Cavity in, described acoustic conducting pipe one end is connected by the through hole of the partition with the main back cavity, and the other end passes through the bass The acoustic aperture of rushing down on chamber enclosure is in communication with the outside afterwards;
The bass back cavity is made of the main body and separated side cover with earphone one, wherein the side cover by outer cover and Lining lid inside outer cover is formed;
Acoustic conducting pipe bending is layed in after the bass on cavity main body, is surrounded jointly by leading sound track and the lining lid;
The sound track of leading includes the curvilinear tool at regular intervals two extended in the same direction on cavity main body after the bass A parallel side wall composition, its one end are connected by the through hole on the partition with the main back cavity, and the other end passes through the bass The acoustic aperture of rushing down on chamber enclosure is in communication with the outside afterwards;
The side wall is equipped with several positioning columns, for serving as a contrast lid described in location and installation.
2. earphone according to claim 1, which is characterized in that the loudspeaker monomer includes vibrational system and magnetic circuit system System, the vibrational system include vibrating diaphragm;Perforate is equipped on the monomer shell of the loudspeaker monomer, is made on rear side of the vibrating diaphragm Air-flow can be connected by the perforate with the rear operatic tunes.
3. earphone according to claim 1, which is characterized in that the sound track of leading is arranged at the interior of cavity main body after the bass On side wall, with cavity main body integrated injection molding after the bass.
4. earphone according to claim 1, which is characterized in that the lining lid is and described for metal material or plastic material Lead sound track secure bond by way of stickup or ultrasonic bonding.
5. according to the earphone any one of claim 1-4, which is characterized in that the shell includes only playing described in collecting The extension of audio signal wire, described extension one end are the partition, and the audio signal wire passes through the sound on the partition Frequency line threading port is placed in the main back cavity and is electrically connected with the loudspeaker monomer, and the extension other end is fixed part, The fixed part and the extension secure bond, collectively form earphone handle, the audio signal wire is passed through with the extension The fixed part is then passed through after the extension, and the fixation to the audio signal wire is realized by the fixed part.
6. earphone according to claim 5, which is characterized in that the internal diameter of the extension is outer with the audio signal wire Footpath approaches.
7. earphone according to claim 1, which is characterized in that the earphone is additionally provided with the damping fin that acoustic aperture is rushed down described in covering Material;The damping sheets are bonded in after the bass on the madial wall of cavity main body, are mainly used for dust-proof.
8. earphone according to claim 1, which is characterized in that the earphone is additionally provided with the tone tuning piece for covering the sound regulating hole Material, the tuning sheet material are bonded on the madial wall of the shell, are mainly used for adjusting acoustical behavior.
CN201410453417.3A 2014-09-05 2014-09-05 A kind of earphone Active CN104244130B (en)

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CN104244130B true CN104244130B (en) 2018-05-22

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WO2017045261A1 (en) * 2015-09-15 2017-03-23 歌尔声学股份有限公司 Receiver
CN105208486B (en) * 2015-11-10 2019-09-27 魅族科技(中国)有限公司 A kind of Headphone structure
CN105721974B (en) * 2016-03-29 2019-04-12 歌尔股份有限公司 PlayGear Stealth
CN106454591B (en) * 2016-10-19 2020-06-12 歌尔股份有限公司 Earphone set
CN109618257A (en) * 2018-10-26 2019-04-12 歌尔股份有限公司 A kind of earplug
CN111225307A (en) * 2018-11-27 2020-06-02 林辉 Earphone bass boosting device and earphone with same
CN111031422B (en) * 2019-11-06 2021-05-18 上海功捐健康科技有限公司 Portable bluetooth headset

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CN103533470A (en) * 2013-09-27 2014-01-22 宁波一凯电子有限公司 In-ear earphone
CN204145702U (en) * 2014-09-05 2015-02-04 歌尔声学股份有限公司 A kind of earphone

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CN202035122U (en) * 2011-01-21 2011-11-09 东莞达电电子有限公司 Earphone with live effect
WO2013104195A1 (en) * 2012-01-10 2013-07-18 歌尔声学股份有限公司 Earphone
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