CN108429960A

CN108429960A - Windproof noise cancelling headphone

Info

Publication number: CN108429960A
Application number: CN201810431683.4A
Authority: CN
Inventors: 沈炜
Original assignee: 沈炜
Current assignee: SHENZHEN JOWAY POWER SUPPLY Co.,Ltd.
Priority date: 2018-05-08
Filing date: 2018-05-08
Publication date: 2018-08-21
Anticipated expiration: 2038-05-08
Also published as: CN108429960B

Abstract

The present invention relates to a kind of windproof noise cancelling headphones, this windproof noise cancelling headphone includes cable body and shell；Loading plate is set in shell, and the inner cavity of shell is divided into ante-chamber and back cavity, is connected to by acoustic hole between ante-chamber, back cavity by the loading plate；Feedback wheat is installed in ante-chamber, is equipped in back cavity and collects wheat, hurricane globe is installed in the tail portion of back cavity, matched annular ridge and annular groove are respectively arranged on the face that the hurricane globe is contacted with shell face；Hurricane globe inner hollow forms windproof chamber, is connected to by flow-guiding mouth between windproof chamber and back cavity；The outer cover of the hurricane globe is streamlined in evagination, the tail portion in low-drag cowl face is provided with shunting fin, the tail end in low-drag cowl face offers ventilation opening；The windproof noise cancelling headphone structural reduction, can intelligently adjust, cope with the high-speed flow in various directions, effectively reduce high-speed flow by the noise generated when headset body, promote the noise reduction experience of earphone.

Description

Windproof noise cancelling headphone

Technical field

The present invention relates to a kind of earphones, are a kind of noise cancelling headphones particularly.

Background technology

Noise cancelling headphone is divided into active noise reduction earphone and passive noise cancelling headphone, and wherein active noise reduction earphone is by picking up external rings The sound wave in border instantaneously sends out the opposite sound wave of waveform after analyses and comparison, and external sound wave enters duct simultaneously with opposite sound wave, most It cancels out each other eventually, to realize the elimination of noise；The regular hour is needed due to analyzing, comparing, at present the people on the market The environmental noise of lasting appearance can only be eliminated mostly with earphone, emergent sound can not be adjusted, Therefore the de-noising function of noise cancelling headphone is still not perfect；Meanwhile noise cancelling headphone also can not strong wind weather, ride when use, can produce Raw larger wind is made an uproar, and the normal use of user outdoors is seriously affected.

Invention content

In view of the above-mentioned problems, the present invention provides a kind of windproof noise cancelling headphone, the windproof noise cancelling headphone structural reduction, Neng Gouzhi The high-speed flow that can adjust, cope with various directions effectively reduces high-speed flow by the noise generated when headset body, promotes ear The noise reduction of machine is experienced.

To solve the above problems, the technical solution adopted in the present invention is：This windproof noise cancelling headphone includes cable body and sky The shell of the heart；It is provided with loud speaker in shell, loading plate is set in shell, the inner cavity of shell is divided by the loading plate Ante-chamber and back cavity, are connected between ante-chamber, back cavity by acoustic hole；

Feedback wheat is installed in the ante-chamber, intracavitary, which is equipped with, in the rear collects wheat, is equipped in the tail portion of back cavity windproof Cover, is respectively arranged with matched annular ridge and annular groove, described on the face that the hurricane globe is contacted with shell face Flexible limit layer is attached on the cell wall of annular groove, the limit layer matches fastening, the annular ridge with annular ridge It only can be relative to limit layer reciprocating rotation；

Hurricane globe inner hollow forms windproof chamber, is connected to by flow-guiding mouth between windproof chamber and back cavity；Outside the hurricane globe Cover is streamlined in evagination, the tail portion in low-drag cowl face is provided with shunting fin, the tail end in low-drag cowl face is opened Equipped with ventilation opening.

The beneficial effects of the invention are as follows：Ante-chamber, back cavity, the windproof chamber of earphone are connected to by acoustic hole, flow-guiding mouth respectively, outside The noise in portion is gradually passed to windproof chamber by ventilation opening, back cavity arrives ante-chamber again, by sampling, analysis, place when noise is by collecting wheat Reason, the reversed sound wave of formation are played by feeding back wheat, and then for user when listening to music, feedback wheat is by noise cancellation, in headset The incoming human ear that can be more clear of music；Compared to traditional noise cancelling headphone, the noise in the present invention needs when being passed to human ear To pass through propagation ducts that are longer, more bending, then collection wheat can possess longer, more sufficient time and be adopted to noise Sample, processing, therefore environmental noise can be more accurately analyzed, consequently facilitating feedback wheat actively eliminates noise；The structure extends The analyzing processing time, the timeliness precision that reversed sound wave is sent out is reduced, cost is effectively saved, while improved noise reduction precision, protecting Stay sound quality.

In strong wind weather, high-speed flow is blown over along the low-drag cowl face of hurricane globe, when air-flow is by shunting fin, quilt Two strands of air-flows are divided into, the dead astern for shunting fin is near vacuum region, position and the ventilation opening phase in the near vacuum region Matching, therefore the wind near strong wind weather ventilation opening is made an uproar and is substantially reduced；At the same time, wind-force acts on shunting fin and drives windproof Cover rotation, hurricane globe are rotated relative to shell up to reaching wind-force settling position, at this time the mellow and full front end of fairshaped hurricane globe Closer to coming to shunting fin tends to the whereabouts of wind, and ventilation opening is in leeward area at this time, and the wind of ventilation opening is made an uproar to drop again for wind It is low；Therefore, by shunting shunting of the fin to wind-force, the position correction to hurricane globe, the wind for realizing ventilation opening is made an uproar weakenings, thus The wind substantially reduced in incoming earphone is made an uproar, and the noise reduction of noise cancelling headphone is effectively increased, and ensure that the sound quality of earphone.

The structure can effectively avoid ventilation opening from being in windward according to wind direction intelligence, the automatic orientation for adjusting hurricane globe Face, and the wind pressure near ventilation opening is reduced, it makes an uproar to which wind be greatly reduced；It can extend the noise treatment time simultaneously, for noise point Analysis provides the longer time, effectively reduces required precision, reduces cost.

Preferably, the end of the annular ridge extends to both sides and formed T-shape, the limit layer is fastened on annular The extension of fin；The structure can effectively prevent hurricane globe to slip, while can facilitate the rotation of hurricane globe smoothness.

Preferably, the shunting fin is in " people " type for protruding from windshield surfaces, the center front direction for shunting fin is anti- The mellow and full front end of fan housing, bifurcated tail end are directed toward the rear end of hurricane globe；The structure can effectively divide air-flow, and generate enough wind Power is convenient for the rotation of hurricane globe.

Preferably, the front end inside hurricane globe is provided with clump weight, install additional the center of gravity of the hurricane globe after clump weight with The center overlapping of axles of annular ridge；In order to reduce hurricane globe gravity it is unbalanced caused by rotational orientation deviation, to convenient logical Air port more levels off to leeward, and then improves noise reduction.

Description of the drawings

Fig. 1 is the cross section structure schematic diagram of this windproof noise cancelling headphone one embodiment.

Fig. 2 is the overlooking structure diagram of embodiment illustrated in fig. 1.

Fig. 3 is annular ridge in embodiment illustrated in fig. 1 and the amplification cross section structure schematic diagram after annular groove assembly.

Specific implementation mode

Embodiment：

In Fig. 1 to embodiment shown in Fig. 3, this windproof noise cancelling headphone includes cable body 1 and hollow shell 2；In shell 2 It is provided with loud speaker, loading plate 3 is set in shell 2, the inner cavity of shell 2 is divided into ante-chamber 21 and back cavity by the loading plate 3 22, it is connected to by acoustic hole 23 between ante-chamber 21, back cavity 22；

Feedback wheat 4 is installed in the ante-chamber 21, is equipped in chamber 22 collects wheat 5 in the rear, is pacified in the tail portion of back cavity 22 Equipped with hurricane globe 6, matched annular ridge 7 and annular are respectively arranged on the face that the hurricane globe 6 is contacted with 2 face of shell The end of sliding slot 8, the annular ridge 7 extends to both sides and is formed T-shape, is pasted on the cell wall of the annular groove 8 The limit layer 81 of elasticity, the limit layer 81 are fastened on the extension of annular ridge 7, and the annular ridge 7 only can be relative to limit Position 81 reciprocating rotation of layer；

6 inner hollow of hurricane globe forms windproof chamber, is connected to by flow-guiding mouth 61 between windproof chamber and back cavity 22；In hurricane globe 6 The front end in portion is provided with clump weight 62, installs the center overlapping of axles of the center of gravity and annular ridge 7 of the hurricane globe 6 after clump weight 62 additional； The outer cover of the hurricane globe 6 is streamlined in evagination, is provided in the tail portion in low-drag cowl face and shunts fin 9, described point Stream fin 9 is in " people " type for protruding from 6 surface of hurricane globe, and the center front of shunting fin 9 is directed toward the mellow and full front end of hurricane globe 6, bifurcated Tail end is directed toward the rear end of hurricane globe 6；Tail end in low-drag cowl face offers ventilation opening 63.

Ante-chamber 21, back cavity 22, the windproof chamber of earphone are connected to by acoustic hole 23, flow-guiding mouth 61 respectively, and external noise is logical Cross ventilation opening 63 and be gradually passed to windproof chamber, back cavity 22 and arrive ante-chamber 21 again, noise by when collection wheat 5 by sampling, analysis, processing, The reversed sound wave formed is played by feeding back wheat 4, and then for user when listening to music, feedback wheat 4 is by noise cancellation, in headset The incoming human ear that music can be more clear；Compared to traditional noise cancelling headphone, the noise in the present invention needs when being passed to human ear By propagation ducts that are longer, more bending, then collect wheat 5 can possess longer, more sufficient time noise is sampled, Processing, therefore environmental noise can be more accurately analyzed, consequently facilitating feedback wheat 4 actively eliminates noise；The structure extends The analyzing processing time reduces the timeliness precision that reversed sound wave is sent out, effectively saves cost, while improving noise reduction precision, retaining Sound quality.

In strong wind weather, high-speed flow is blown over along the low-drag cowl face of hurricane globe 6, when air-flow is by shunting fin 9, It is divided into two strands of air-flows, the dead astern of shunting fin 9 is near vacuum region, the position in the near vacuum region and ventilation opening 63 match, therefore the wind near strong wind weather ventilation opening 63 is made an uproar and is substantially reduced；At the same time, wind-force acts on shunting fin 9 simultaneously Hurricane globe 6 is driven to rotate, hurricane globe 6 is rotated relative to shell 2 up to reaching wind-force settling position, at this time fairshaped hurricane globe 6 mellow and full front ends are come closer to wind to shunting fin 9 tends to the whereabouts of wind, and ventilation opening 63 is in leeward area, ventilation opening at this time 63 wind is made an uproar and is reduced again；Therefore, ventilation is realized to the shunting of wind-force, to the position correction of hurricane globe 6 by shunting fin 9 Mouthfuls 63 wind is made an uproar weakenings, is made an uproar to substantially reduce the wind in incoming earphone, is effectively increased the noise reduction of noise cancelling headphone, guarantee The sound quality of earphone；In the present embodiment, it is installed at the weight that the clump weight 62 inside hurricane globe 6 is capable of active balance hurricane globe 6 Power is distributed, and ensures the center overlapping of axles of the center of gravity and annular ridge 7 of hurricane globe 6；To reduce hurricane globe 6 rotate when by vertically to Under gravity influence cause to deviate, to ensure that ventilation opening 63 more levels off to leeward, and then improve noise reduction.

" people " type shunting fin 9 in the present embodiment can effectively divide air-flow, reduce the wind at ventilation opening 63 and make an uproar, simultaneously Bifurcated tail end can generate larger active force with air, be rotated convenient for driving hurricane globe 6；Structure in the present invention being capable of basis Wind direction intelligence, the orientation for automatically adjusting hurricane globe 6, effectively avoid ventilation opening 63 from being in windward side, and it is attached to reduce ventilation opening 63 Close wind pressure is made an uproar to which wind be greatly reduced；It can extend the noise treatment time simultaneously, the longer time is provided for noise analysis, Required precision is effectively reduced, cost is reduced.

The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all the present invention spirit and Within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.

Claims

1. a kind of windproof noise cancelling headphone, this windproof noise cancelling headphone includes cable body（1）With hollow shell（2）；In shell（2）It is interior It is provided with loud speaker, in shell（2）Interior setting loading plate（3）, the loading plate（3）By shell（2）Inner cavity be divided into ante-chamber （21）And back cavity（22）, ante-chamber（21）, back cavity（22）Between pass through acoustic hole（23）Connection；It is characterized in that：In the ante-chamber （21）Feedback wheat is inside installed（4）, chamber in the rear（22）It is inside equipped with and collects wheat（5）, in back cavity（22）Tail portion be equipped with Hurricane globe（6）, in the hurricane globe（6）With shell（2）It is respectively arranged with matched annular ridge on the face of face contact（7）With Annular groove（8）, in the annular groove（8）Cell wall on attach flexible limit layer（81）, the limit layer（81）With Annular ridge（7）Matching fastens, the annular ridge（7）It only can be relative to limit layer（81）Reciprocating rotation；Hurricane globe（6）It is internal It is hollow to form windproof chamber, windproof chamber and back cavity（22）Between pass through flow-guiding mouth（61）Connection；The hurricane globe（6）Outer cover In the streamlined of evagination, the tail portion in low-drag cowl face is provided with shunting fin（9）, the tail end in low-drag cowl face opens up There is ventilation opening（63）.

2. windproof noise cancelling headphone according to claim 1, it is characterised in that：In hurricane globe（6）Internal front end is provided with Clump weight（62）, install clump weight additional（62）Hurricane globe afterwards（6）Center of gravity and annular ridge（7）Center overlapping of axles.

3. windproof noise cancelling headphone according to claim 1 or 2, it is characterised in that：The shunting fin（9）It is windproof in protruding from Cover（6）" people " type on surface shunts fin（9）Center front be directed toward hurricane globe（6）Mellow and full front end, bifurcated tail end are directed toward windproof Cover（6）Rear end.

4. windproof noise cancelling headphone according to claim 3, it is characterised in that：The annular ridge（7）End to both sides Extend and formed T-shape, the limit layer（81）It is fastened on annular ridge（7）Extension.