CN205305070U

CN205305070U - Open type earphone

Info

Publication number: CN205305070U
Application number: CN201521109342.3U
Authority: CN
Inventors: 段秀华; 张文来
Original assignee: Qingdao Goertek Co Ltd
Current assignee: Qingdao Goertek Co Ltd
Priority date: 2015-12-29
Filing date: 2015-12-29
Publication date: 2016-06-08
Anticipated expiration: 2025-12-29

Abstract

The utility model provides an open type earphone, this earphone include loudspeaker body, loudspeaker body's the preceding protecgulum that sets up, the protecgulum with be formed with the earphone ante -chamber between the loudspeaker body, be equipped with a plurality of phonate holes on the protecgulum, loudspeaker body's the back is equipped with the backshell, loudspeaker body with be formed with the earphone back cavity between the backshell, the protecgulum parcel behind the loudspeaker body with the backshell is connected, be equipped with a plurality of volume adjustment hole on the backshell, volume adjustment hole's position is equipped with the tuning screen cloth. The utility model discloses an open type earphone has advantage open and closed earphone concurrently, and the sound field opens the nature, and has balanced high -quality well bass performance. The backshell that has a plurality of volume adjustment hole through the setting to paste different damped tuning screen cloths and come the not enough of in compensation low -frequency range frequency response on volume adjustment hole, obtain balanced sound output. The earphone ante -chamber is open, and the protecgulum can compact design, makes the structure gently little, portable.

Description

A kind of open earpiece

Technical field

This utility model belongs to ear phone technology field, specifically, relates to a kind of open earpiece.

Background technology

Along with the progress of science and technology, popularizing of various audio-visual broadcasting products, people are also more and more higher to the requirement of sound quality, correspondingly that the requirement of earphone tonequality is also higher. Except requiring that earphone has the tonequality performance curling up surrounding as high, medium and low well arranged and theater, even if also be intended to use for a long time simultaneously, without producing feeling of fatigue and human ear audition being caused damage.

Earphone on the market at present, distinguishes from structure, substantially can be divided into closed and open two kinds. So-called closed earphone, refers to employing closed acoustical cavity design, and the sound sent by individual earphones is enclosed in the space in ear casing and between human ear, and contiguous people not easily hears the sound that earphone sends. This kind of structural design advantage is in that, the sound sent by individual earphones focuses on auditory meatus mouth, enhances the effect of bass, its shortcoming is in that headphones sound excessively concentrates head central authorities, not easily having the sensation that sound field curls up, long-time use simultaneously easily makes people produce fatigue, even damages the audition of people. Relatively, so-called open earpiece structure, then be that the sound allowing individual earphones send can allow contiguous people hear partly, sound will not be concentrated in head central authorities, the open nature of sound field, long-time use is not easy to produce fatigue, but cannot obtain the tonequality performance that high-quality is balanced. Meanwhile, common open earpiece, back cover is mostly the design of hollow out ferrum net, uses for a long time, and dust easily falls into inside horn single body, affects earphone tonequality, and the acoustical behavior of medium and low frequency is undesirable simultaneously.

Utility model content

This utility model provides a kind of open earpiece, and this earphone has the advantage of open and closed earphone, the open nature of sound field concurrently, and has the middle bass performance of balanced high-quality.

For solving above-mentioned technical problem, this utility model is achieved by the following technical solutions:

A kind of open earpiece, this earphone includes horn single body, before described horn single body, protecgulum is set, be formed with earphone ante-chamber between described protecgulum and described horn single body, described protecgulum be provided with some go out acoustic aperture, the back side of described horn single body is provided with back cover, earphone back cavity it is formed with between described horn single body and described back cover, described protecgulum is connected with described back cover after wrapping up described horn single body, and described back cover is provided with multiple sound regulating hole, and the position of described sound regulating hole is provided with tuning screen cloth.

Further, described protecgulum and described back cover are by snapping connection, described protecgulum has the opening annular groove towards described back cover, the internal ring lateral wall of described annular groove is provided with multiple claw, described back cover is provided with the buckle of respective number, and the buckle of described back cover is installed on the claw of described annular groove internal ring lateral wall.

Further, the back side of described back cover is provided with the step surface of a layer, and described sound regulating hole is opened on this step surface, and the outside of described step surface is provided with wire netting, and described wire netting is connected by claw with described step surface.

Further, the periphery of described wire netting is provided with multiple claw, and the periphery of described step surface is provided with corresponding gap, and the claw of described wire netting inserts in described gap and bending connects.

Further, described wire netting is provided with dust-proof screen cloth towards the one side of described back cover, and the acoustics screen cloth of specific acoustic resistance less than 25 selected by described dust-proof screen cloth; Or select the tuning screen cloth of specific acoustic resistance less than 160.

Further, described tuning screen cloth is pasted onto on described sound regulating hole, and the screen cloth of specific acoustic resistance less than 160 selected by described tuning screen cloth.

Further, the mesh of described wire netting is hollow out rhombus or hexagon, and its inscribe diameter of a circle is 1mm ~ 1.5mm; The aperture of described sound regulating hole is 2mm ~ 5mm, and hole count is 2 ~ 10.

Further, described horn single body is provided with mesopore or side opening, and described mesopore internal diameter is less than 3mm, and the external diameter of described horn single body is between 40mm ~ 50mm.

Further, the front edge of described protecgulum is pasted with the foam packing ring of annular.

Further, described foam packing ring overlying lid layer damps adjustable sponge, described sponge is wrapped up cloth one layer soft and knits ear muff, and the edge of described ear muff is inserted in described annular groove and is fixedly clamped by described back cover and protecgulum simultaneously.

Compared with prior art, advantage of the present utility model and having the benefit effect that

Open earpiece of the present utility model has the advantage of open and closed earphone, the open nature of sound field concurrently, and has the middle bass performance of balanced high-quality. By being provided with the back cover of multiple sound regulating hole, and on sound regulating hole, paste the tuning screen cloth of different damping to compensate the deficiency of medium and low frequency section frequency response, it is thus achieved that balanced sound output. Earphone ante-chamber is open, protecgulum can compact design, make structure gently little, it is simple to carry.

Accompanying drawing explanation

Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing:

Fig. 1 is the overall structure schematic diagram of this utility model open earpiece specific embodiment one;

Fig. 2 is the side view of this utility model open earpiece specific embodiment one;

Fig. 3 is the A-A half sectional view of Fig. 2;

Fig. 4 is the explosive view of this utility model open earpiece specific embodiment one;

Fig. 5 is the actual measurement frequency response curve figure frequency response curve comparison diagram with common open earpiece of this utility model embodiment one;

Fig. 6 is the overall structure schematic diagram of this utility model open earpiece specific embodiment two;

Fig. 7 is the side view of this utility model open earpiece specific embodiment two;

Fig. 8 is the B-B half sectional view of Fig. 7;

Fig. 9 is the explosive view of this utility model open earpiece specific embodiment two;

Symbol in figure and explanation thereof:

1, horn single body; 11, mesopore; 12, side opening; 2, protecgulum; 21, acoustic aperture is gone out; 22, annular groove; 23, internal ring; 24, claw; 3, back cover; 31, sound regulating hole; 32, buckle;33, step surface; 4, metal decorative network; 41, claw; 5, dust-proof screen cloth; 6, tuning screen cloth; 7, foam packing ring; 8, sponge; 9, ear muff.

Detailed description of the invention

In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, this utility model is described in further detail. Should be appreciated that embodiment described herein is only in order to explain this utility model, be not used to limit this utility model.

In description of the present utility model, it will be appreciated that, orientation or the position relationship of the instruction such as term " above ", " back side ", "front", "rear", " interior ", " outward " are based on orientation shown in the drawings or position relationship, it is for only for ease of description this utility model and simplifies description, rather than the device of instruction or hint indication or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to restriction of the present utility model. In description of the present utility model, except as otherwise noted, " multiple " are meant that two or more.

In description of the present utility model, it is necessary to explanation, unless otherwise clearly defined and limited, term " connection " should be interpreted broadly, for instance, it is possible to it is fixing connection, it is also possible to be removably connect, or connect integratedly; Can be mechanically connected, it is also possible to be electrical connection; Can be joined directly together, it is also possible to be indirectly connected to by intermediary, it is possible to be the connection of two element internals. For the ordinary skill in the art, it is possible to concrete condition understands above-mentioned term concrete meaning in this utility model.

Embodiment one

With reference to shown in Fig. 1-4, this embodiment is a kind of open earpiece, this earphone includes horn single body 1, protecgulum 2 is set before horn single body 1, between protecgulum 2 and horn single body 1, is formed with earphone ante-chamber, protecgulum 2 be provided with some go out acoustic aperture 21, the back side of horn single body 1 is provided with back cover 3, being formed with earphone back cavity between horn single body 1 and back cover 3, protecgulum 2 passes through to snap connection with back cover 3 after wrapping up horn single body 1, and back cover 3 is provided with multiple sound regulating hole 31;

Protecgulum 2 has the opening annular groove 22 towards back cover 3, internal ring 23 lateral wall of annular groove 22 is provided with multiple claw 24, back cover 3 is provided with the buckle 32 of respective number, and the buckle 32 of back cover 3 is installed on the claw of annular groove 22 internal ring lateral wall and is formed snaps connection.

The back side of back cover 3 is provided with the step surface 33 of a layer, sound regulating hole 31 is opened on this step surface 33, the outside of step surface 33 is provided with metal decorative network 4, the periphery of metal decorative network 4 is provided with claw 41, the periphery of step surface 33 is provided with corresponding gap (not shown on figure), and in the claw 41 insert stand terrace 33 periphery gap of metal decorative network 4, also bending is connected on back cover 3. The mesh of metal decorative network 4 is hexagon, and the inscribe diameter of a circle of hexagonal hole is 1.2mm; Metal decorative network 4 pastes, towards the one side of back cover 3, the dust-proof screen cloth 5 being fixed with annular, and dust-proof screen cloth 5 selects colored Satti or the domestic screen cloth with type, and specific acoustic resistance selects the screen cloth of less than 25;

The position of sound regulating hole 31 is provided with tuning screen cloth 6, the aperture of sound regulating hole 31 is 3mm, hole count is 7, the number of tuning screen cloth 6 is also 7, suitable with sound regulating hole 31, tuning screen cloth 6 selects Satti or the domestic screen cloth with type, and specific acoustic resistance selects the screen cloth of less than 160, tuning screen cloth 6 to be pasted onto on each sound regulating hole 31.

Horn single body 1 is provided with mesopore 11, and mesopore 11 diameter is less than 3mm, and the external diameter of horn single body 1 is 40mm. The step surface central authorities at back cover 3 back side are provided with groove, and this groove is to wear parts for the ease of connecting, and is not sound regulating hole.

In order to protect human ear audition and improve wearing comfort; the front edge of protecgulum 2 is pasted with the foam packing ring 7 of annular; foam packing ring 7 overlying lid layer damps adjustable sponge 8; wrapping up cloth one layer soft on sponge 8 and knit ear muff 9, the edge of ear muff 9 is inserted in annular groove 22 and is fixedly clamped by back cover 3 and protecgulum 2 simultaneously.

Fig. 5 is an ERP frequency response, is acoustically representing at ear canal entrance place, and earphone measures the response of gained with frequency change (HATS: professional standard measurement apparatus) in emulation human ear. ERP frequency response is closest to the frequency response curve of the actual sense of hearing of human ear. It can be seen that common open earpiece frequency response curve is decayed quickly in below 100Hz sensitivity. Actual listen music in, particularly experience the music of sound on the low side, actual listening sympathetic is not so shaken, and can ignore the details of many basses simultaneously, and low frequency dive is less deep. This utility model is by regulating the acoustic damping of 7 sound regulating holes, it is possible to be effectively improved the frequency response (it can be seen that the curve of this utility model embodiment is high than common open curve of below 100Hz) of below 100Hz; Simultaneously from frequency response curve it can be seen that at ERP point, the frequency response of the highest frequency of high frequency is almost high with the maximum sensitivity of low frequency, more balanced than the frequency response curve of actual open earpiece. On actual subjective audition, it is possible to adapt to more music (frequency on the low side, alt), subjective experience can be better.

The back cover of this utility model open earpiece is the housing shape with multiple sound regulating holes, but not open type hollow out ferrum net, the dust-proof screen cloth pasted on wire netting on back cover, can be colored, both the effect of beautiful decoration had been played, again can be dust-proof, it is prevented that after long-time use, dust falls into inside horn single body, and the additional mass changing horn single body reduces tonequality;

Air Filter plants has a number of sound regulating hole, sound regulating hole is evenly distributed on back cover, the deficiency of medium and low frequency section frequency response is compensated by pasting the tuning screen cloth of different damping on sound regulating hole, the earphone frequency response in some frequency range especially medium and low frequency section can be improved further, thus obtaining the sound output that high-quality is balanced by adjustment acoustic resistance.

Earphone ante-chamber of the present utility model is full open model design, and without any acoustic construction, therefore protecgulum diameter can be made as far as possible little, compact design, while ensureing tonequality, structure can be made again gently little, it is simple to carry.

Embodiment two

With reference to Fig. 6-9, this embodiment and embodiment one institute the difference is that, horn single body 1 can according to the demand of tuning, it does not have mesopore, but the side opening 12 of sound leakage effect, can reach equal performance. Other, with embodiment one, repeat no more, and the sound regulating hole on back cover arranges the structure with horn single body, and it doesn't matter, and the centre of back cover arranges groove, and it is not belonging to sound regulating hole.

In the above-described embodiments, dust-proof screen cloth 5 also can be selected for the tuning screen cloth with certain damping, and model can be selected for Satti or the domestic screen cloth with type, and specific acoustic resistance selects the screen cloth of less than 160, and now the tuning screen cloth on sound regulating hole can be default, provides cost savings; Meanwhile, on assembly technology, for wire netting is pasted tuning screen cloth, it is possible to design certain profiling fixture and automatically press stickup;But for the sound regulating hole on structural member, automatically pasting and cannot control by surging, and tuning hole count is more, it is therefore desirable to hand paste, and have multiple hole, the alignment requirements for paste position is also higher. By default for the tuning screen cloth of sound regulating hole on structural member, it is possible to be effectively improved the efficiency of assembling, effectively save human cost.

The above, it it is only preferred embodiment of the present utility model, being not the restriction that this utility model is made other form, any those skilled in the art are changed or are modified as the Equivalent embodiments of equivalent variations possibly also with the technology contents of the disclosure above. But every without departing from technical solutions of the utility model content, any simple modification, equivalent variations and remodeling above example made according to technical spirit of the present utility model, still fall within the protection domain of technical solutions of the utility model.

Claims

1. an open earpiece, this earphone includes horn single body, before described horn single body, protecgulum is set, earphone ante-chamber it is formed with between described protecgulum and described horn single body, described protecgulum be provided with some go out acoustic aperture, it is characterized in that: the back side of described horn single body is provided with back cover, earphone back cavity it is formed with between described horn single body and described back cover, described protecgulum is connected with described back cover after wrapping up described horn single body, described back cover is provided with multiple sound regulating hole, and the position of described sound regulating hole is provided with tuning screen cloth.

2. open earpiece according to claim 1, it is characterized in that: described protecgulum and described back cover are by snapping connection, described protecgulum has the opening annular groove towards described back cover, the internal ring lateral wall of described annular groove is provided with multiple claw, described back cover is provided with the buckle of respective number, and the buckle of described back cover is installed on the claw of described annular groove internal ring lateral wall.

3. open earpiece according to claim 1, it is characterized in that: the back side of described back cover is provided with the step surface of a layer, described sound regulating hole is opened on this step surface, and the outside of described step surface is provided with wire netting, and described wire netting is connected by claw with described step surface.

4. open earpiece according to claim 3, it is characterised in that: the periphery of described wire netting is provided with multiple claw, and the periphery of described step surface is provided with corresponding gap, and the claw of described wire netting inserts in described gap and bending connects.

5. open earpiece according to claim 3, it is characterised in that: described wire netting is provided with dust-proof screen cloth towards the one side of described back cover, and the acoustics screen cloth of specific acoustic resistance less than 25 selected by described dust-proof screen cloth; Or select the tuning screen cloth of specific acoustic resistance less than 160.

6. open earpiece according to claim 1, it is characterised in that: described tuning screen cloth is pasted onto on described sound regulating hole, and the screen cloth of specific acoustic resistance less than 160 selected by described tuning screen cloth.

7. open earpiece according to claim 3, it is characterised in that: the mesh of described wire netting is hollow out rhombus or hexagon, and its inscribe diameter of a circle is 1mm ~ 1.5mm; The aperture of described sound regulating hole is 2mm ~ 5mm, and hole count is 2 ~ 10.

8. open earpiece according to claim 1, it is characterised in that: described horn single body is provided with mesopore or side opening, and described mesopore internal diameter is less than 3mm, and the external diameter of described horn single body is between 40mm ~ 50mm.

9. open earpiece according to claim 2, it is characterised in that: the front edge of described protecgulum is pasted with the foam packing ring of annular.

10. open earpiece according to claim 9, it is characterized in that: described foam packing ring overlying lid layer damps adjustable sponge, wrapping up one layer of cloth on described sponge and knit ear muff, the edge of described ear muff is inserted in described annular groove and is fixedly clamped by described back cover and protecgulum simultaneously.