CN106101326A - Phone vacuum shell active silencer - Google Patents

Abstract

nullThe present invention relates to a kind of phone silene device，Described phone vacuum shell active silencer includes resistance expansion chamber、Narrow frequency room、Active Noise Control room and earplug speakers，Lip closed dynamically by LO shape sealing ring，Reducer pipe is while unimpeded air-flow，The sound wave only letting slip some frequency enters narrow frequency room，In the symmetrically arranged narrow meshed tubule of circumference, air-flow crosses into equidistantly isobaric head-on collision during supervisor，In the symmetrically arranged supervisor of circumference, air-flow crosses into equidistantly isobaric head-on collision during anterior cannula，Anterior cannula inwall time mike is by instant narrow audio signal，It is transferred to the speaker in the rear sleeve of rear wall center, Active Noise Control room，To receive acoustic pressure equal in magnitude with anterior cannula inwall time mike to produce one again、The sound wave of opposite in phase，It is made to offset with the sound field in anterior cannula direction in Active Noise Control indoor，The deep cup of earplug speakers vacuum focuses on sound，By the malleable ear plug of extension，Reach user receiver lamprophonia，The effect that stranger does not hears.

Description

Phone vacuum shell active silencer

Technical field

The present invention relates to a kind of phone silene device, a kind of electricity stoping sound transmission and allow air-flow to pass through Words vacuum shell active silencer.

Background technology

The level of confidentiality of file divides top secret, secret, secret three grades, has corresponding control measures to be protected by respectively, telephone talk The voice content that both sides relate to there is also the problem of grade classification, and common screening with hands is sealed mobile phone pick up one end, or scudded to corner Nook, angle is hidden and is made a phone call, and sound wave transmission, acoustic energy transmission hands are sealed incessantly, and nook, corner is also unable to hidden；As heard neck in corridor Lead the time place of telephony engagement reception honored guest, the emergency notice content etc. that response should not be spread in office, belong to concerning security matters Information leakage, converses, it is also possible to nature's mystery let out in a language in face of commercial competition opponent；Earpiece speaker and auricle, auditory meatus not close Contact, private content is easily heard for adjacent seat.

The physical phenomenon that oral cavity sounding is breath campaign and vocal cord vibration is formed, oral cavity sends the same of wide amplitude audio frequency Time, outside oral cavity, breathe out the audio frequency turbulent flow of Incoercibility；Resistant noise-reducing device is the pipe by abrupt interface and room combines, The cell of each band pipe has the natural frequency of oneself, when the sound wave including various frequency content enters first short tube Time, the only sound wave of some frequency near first mesh natural frequency could pass through mesh second short tube mouth of arrival, The sound wave of other frequency then can not pass through mesh, can only in cell roundtrip, choose suitable pipe and room entered Row combination, it is possible to filter the noise of some frequency content, thus reach the purpose eliminated the noise；The small-bore energy of pinhole type acoustic filter Improving acoustic absorptivity, low porosity can increase the width of sound sucting band, and the orifice plate degree of depth can change the position at resonance sound-absorbing peak；When Primary sound and ET interval, more than 0.1 second, can be told by human ear, when less than 0.1 second, then for the reverberation making volume increase； The ultimate principle of active silencer is in original sound field, utilize electronic equipment produce again one with original acoustic pressure size phase Deng, the sound wave of opposite in phase so that it is offset with original sound field within the specific limits；The vacuum layer of vacuum glass, does not has gas Body heat conduction, convection heat transfer' heat-transfer by convection, also without acoustic propagation, have good sound insulation property, the supporter contact surface between two-layer vacuum glass Long-pending the biggest, rigidity is the strongest, overhead speaker phenomenon is the most obvious.

Through the patent search CN200810203688.8 applying date: 2008-11-28-Main classification number: have in H04M1/03 cover wall Sponge sound absorbing layer；The CN201110361405.4 applying date: 2011-11-15-Main classification number: H04M1/03 ellipse covers ear The soft rubber of face or the handheld mobile phone cylinder of plastic material；The CN200920021487.6 invalid patent applying date: 2009-04-22- Main classification number: H04M1/19 receiver, microphone end are cased with a barney respectively；The effective patent application of CN200610138409.5 Day: 2006-11-13-Main classification number: H04M1/19 sound insulation respirator, periphery can be provided with elastomer, and cover body is at least two-layer Sound-proof material or the baffle of deadener parcel；The CN201010172202.6 invalid patent applying date: 2010-05-14-Main classification Number: H04M1/19 phone silencer, separated by multiple dividing plates, interior be made up of the cavity of sound absorbing layer； The CN200710128936.2 invalid patent applying date: 2007-07-28-Main classification number: H04M1/19 mouth piece and gosport have every The earphone muffle of sound material；The CN201410452091.2 examination as to substances applying date: 2014-09-05-Main classification number: H04M1/ The circumferential silencing means that 19 1 kinds of five pieces of square tabulars surround, has the air draught of outwards convulsion in the container that five pieces of plate bodys are constituted Fan；The CN201410410224.X examination as to substances applying date: 2014-08-20-Main classification number: have ring-type close at H04M1/19 oral cavity The phone silene device of seal, inwall is connected by communicating pipe, hush pipe with the expansion chamber of sound absorbing layer, silencing cavity, steam vent is pacified Equipped with air-introduced machine；The CN95214218.X invalid patent applying date: 1995-06-26-Main classification number: H04M1/19 mono-kind is available to be moulded Material, metal, rubber, bamboo and wood materials are made, telephone earphone without interference, inside have air-vent；CN201520125523.9 Effectively patent application day: the elastomeric material outer outlet body that 2015-03-04-Main classification number: H04M1/19 and people's snout match, The muffler chamber of sound-insulation and sound-absorbing material, muffler chamber front end is had to be provided with vacuum pump, silencing pot top venthole in extending out to And the filling of deadener sound-absorbing material；The CN201320068296.1 invalid patent applying date: 2013-02-06-Main classification number: H04M1/19 mike is built in sound insulation band, has VELCRO outside described sound insulation band；CN200720126783.3 invalid patent The applying date: 2007-07-29-Main classification number: H04M1/19 mouth piece is connected with deafener, gosport one end is located in deafener, logical The words pipe other end is connected with seam；The CN200620070926.9 invalid patent applying date: 2006-03-24-Main classification number: H04M1/19 acoustic flexible pipe realizes call voice and is isolated from the outside；Above 13 patents are not directed to vacuum sound insulation interlayer and active Acoustic filter；CN201020241829.8 effective patent application day: 2010-06-29-Main classification number: under H04M1/19 open environment Call, improves the other side's receiver and receives calls definition, eliminate the active de-noising device of party B ambient noise； CN201210257484.9 effective patent application day: 2012-07-24-Main classification number: under H04R3/00 party B noisy environment, its In noise in mike pickup environment, be transferred to de-noising circuit, the other side's speaker receives and plays the electroacoustic after de-noising Signal；Above 2 patents relate in open environment, for reaching the purpose that background noise eliminates in the other side's receiver, active telecommunications The technology offset number in circuit board；The CN03147392.X invalid patent applying date: 2003-07-13-Main classification number: H04M1/ Setting mike, earphone communicator in the 19 vacuum helmets, the exhaust column that sponge surrounds weakens sound wave；This patent is to be placed in by ears Oral cavity volume increases in the vacuum sound insulation interlayer helmet of reverberation, under the conditions of good sound insulation, uses small size sponge noise reduction technology The exhaust column of measure, is the passage of reverberation voice unofficial biography after volume increases in fact；Resistive sound-absorbing material is utilized merely to eliminate voice, There is sufficiently large noise reduction volume could consume a certain amount of acoustic energy；Use deadener to weaken transmission acoustic energy and stop the biography of sound Broadcasting, the requirement of material is closely knit imporosity or gap, has bigger weight, such as: the sound insulation of 150～180mm thickness concrete walls Amount about 47～48dB, but the steel concrete porous plate of surface density 200kg/m2, oise insulation factor is at below 45dB；By resistive noise reduction material Material and deadener cavity wall thickness based on 150～180mm, be small size mobile phone or landline telephone realizes big sound-damping qualities Obstacle, the expansion chamber of antivacuum layer interlayer outer wall, silencing cavity acoustic energy transmission are serious, without efficient resistance sound-silencing measures and Active Noise Control The oral airflow discharge channel of room, is also that sound wave transmits acoustic energy transmission discharge channel.

Summary of the invention

Phone vacuum shell active silencer is the handle portion of landline telephone, or the appendix as mobile phones integrated use Point, any one side beyond mobile phone screen can be attached to, along with the difference of attachment surface area, concrete chamber, room, pipe can be put down Face adjusts, it is also possible to combination each chamber, the position of pipe of the formula that plays with building blocks；Phone vacuum shell active silencer is one group of soundproof effect Under good vacuum shell interlayer parcel, different-diameter pipes, hole connect each resistance expansion chamber (room), and each connecting portion is sealed by elastomeric material Blocking up, be spaced, fill, mike, earphone speaker are placed in the deep cup of vacuum, and are provided with source dead room, have the mouth of air-out (mouth) mouth Chamber air-flow silencing channel.

It is an object of the invention to be difficult in the volume of sound insulation and noise reduction at limited, common sound insulation quieter material, splice one Gas channel, allows the oral cavity pronunciation resistance expansion chamber that wraps up through vacuum shell interlayer of air-flow, multiple reducer pipes having damping effect, Enter narrow meshed tubule, airflow counter-collision laggard enter supervisor, anterior cannula, then support through the artificial sound source of Active Noise Control cabinet speaker Noise elimination field, reduces, eliminates the effect of oral cavity sound at air outlet.

For achieving the above object, the technical scheme is that

Described phone vacuum shell active silencer includes resistance expansion chamber, narrow frequency room, Active Noise Control room and earplug speakers, Annulus between the outer wall lip end of described resistance expansion chamber, and vacuum chamber outer wall lip end, by the LO shape sealing ring back side Convex rubber cushion fill interval, the O of described LO shape sealing ring front inner ring hollow, and outer ring L-shaped sealing ring, with lip folding Inosculating type becomes, and sealed lip is peripheral, cuts off oral airflow and escapes, between outer wall and the vacuum chamber outer wall of described resistance expansion chamber, It is provided with ring apron, keeps vacuum chamber peripheral distance equalization to reduce overhead speaker phenomenon；The inner wall at end of described resistance expansion chamber, is provided with Main mike, described main mike is bonded in the bottom of the one deep cup of vacuum, to reduce the interference that sound wave in resistance expansion chamber agitates, Obtain voice signal clearly, the inner wall at end of described resistance expansion chamber, be densely covered with the reducer pipe of multiple sudden change diameter, described change Pipe two ends, footpath, all by being sleeved on the rubber cushion cylinder of periphery, are fixed by socket with resistance expansion chamber end wall, narrow frequency room antetheca, described change The mid portion outer wall of footpath pipe is in vacuum chamber, and described narrow frequency room rear wall has anterior cannula to connect active dead room, described protheca Pipe is positioned at the front top seal in narrow frequency room, and the supervisor symmetrical by circumference is ventilated, the end seal of described supervisor, described supervisor by The tubule ventilation that circumference is symmetrical, the tube wall of described tubule has multiple penetrating boring, and the end of described tubule does sealing and processes, institute In stating tubule, air-flow clashes in supervisor intersection equidistantly equipressure with air-flow in circumference symmetrical side tubule, air-flow and circle in described supervisor Week, the interior air-flow of symmetrical side supervisor was in the equidistantly isobaric head-on collision of anterior cannula intersection；It is deep that described anterior cannula inwall is fixedly arranged at the front end with two vacuum Cup, the opening of the described two deep cups of vacuum is towards at oral airflow, and the bottom of the described two deep cups of vacuum is bonded with time mike, institute Stating the rear wall center of Active Noise Control room, be provided with speaker, described speaker is fixed on the bottom of rear sleeve, described protheca Pipe, rear sleeve respective back side in Active Noise Control room are funneling reflecting wall, described anterior cannula and two openings of rear sleeve, Concentric is parallel relatively, and a side wall of described Active Noise Control room is provided with air outlet, and described air outlet periphery is set with long packing element type Pad, described long packing element type pad is fixed by socket with vacuum chamber outer wall, Active Noise Control chamber outer wall, described air outlet axial line and Active Noise Control The horizontal central breaks in room is overlapping, i.e. air outlet is positioned at the centre that limit, Active Noise Control room wall is longitudinal, before described vacuum chamber outer wall divides Portion and reducing rear portion, described vacuum chamber outer wall is anterior and the degree of depth grafting of junction, reducing rear portion, described vacuum chamber outer wall anterior and The gap of reducing rear portion degree of depth grafting part, has J cross sectional annular rubber cushion to fill；Described earplug speakers is by the three deep cup of vacuum and three Speaker bottom the deep cup of vacuum, the malleable ear plug adding three vacuum deep cup rim of a cup extension is constituted.

After have employed technique scheme, the invention has the beneficial effects as follows: it is peripheral that lip closed dynamically by LO shape sealing ring, The resistance expansion chamber of vacuum shell interlayer parcel, reducer pipe, narrow frequency room, Active Noise Control room, anti-transmission acoustic energy, soundproof effect are good；Narrow The indoor voice air-flow of frequency repeatedly clashes in supervisor, anterior cannula, the speaker in the rear sleeve of rear wall center, Active Noise Control room, Produce, the sound wave of opposite in phase equal in magnitude with anterior cannula inwall time mike reception acoustic pressure again so that it is in Active Noise Control Indoor offset with the sound field in anterior cannula direction, active and passive good muffling effect；Three vacuum deep cup focusing sound on earplug speakers Sound, earplug speakers, by less volume, is pressed close to auditory meatus by the malleable ear plug of extension, is reached user receiver lamprophonia, outward The effect that people does not hears.

Accompanying drawing explanation

Fig. 1 is phone vacuum shell active silencer side view；

Fig. 2 is earplug speakers figure；

Fig. 3 is reducer pipe figure；

Fig. 4 is Active Noise Control room side view；

Fig. 5 is narrow frequency room, Active Noise Control room front view；

Fig. 6 is phone vacuum shell active silencer rearview；

Detailed description of the invention

The invention will be further described with a kind of preferred implementation below in conjunction with the accompanying drawings:

As shown in drawings, described phone vacuum shell active silencer 100 include resistance expansion chamber 101, narrow frequency room 500, Active Noise Control room 400 and earplug speakers 200, the outer wall 102 lip end of described resistance expansion chamber 101, with vacuum chamber outer wall 103 Annulus between lip end, is filled by the convex rubber cushion 105 at LO shape sealing ring 104 back side, described LO shape sealing ring 104 front The O of inner ring hollow, and outer ring L-shaped sealing ring, become with lip folding inosculating type, described resistance expansion chamber 101 outer wall 102 with Between vacuum chamber outer wall 103, it is provided with ring apron 106, the inner wall at end 300 of described resistance expansion chamber 101, is provided with main mike 107, described main mike 107 is bonded in the bottom of the one deep cup of vacuum 108, to reduce what sound wave in resistance expansion chamber 101 agitated Interference, the inner wall at end 300 of described resistance expansion chamber 101, it is densely covered with multiple reducer pipe 301, described reducer pipe 301 two ends are the most logical Cross the rubber cushion cylinder 302 being sleeved on periphery, be fixed by socket with resistance expansion chamber 101 end wall 300, narrow frequency room antetheca 303, described narrow Frequently room 500 rear wall 501 has anterior cannula 502 to connect active dead room 400, and described anterior cannula 502 is positioned at the front top in narrow frequency room Sealing, is ventilated by the supervisor 503 of circumference symmetry, the end seal of described supervisor 503, and described supervisor 503 is thin by circumference symmetry Pipe 504 ventilates, and the tube wall of described tubule 504 has multiple penetrating boring 505, the end of described tubule 504 do sealing and processes, institute Stating anterior cannula 502 inwall and be fixedly arranged at the front end with the two deep cups of vacuum 401, the opening of the described two deep cups of vacuum 401 comes towards oral airflow Place, the bottom of the described two deep cups of vacuum 401 is bonded with time mike 402, centre bit in the rear wall of described Active Noise Control room 400 Putting, be provided with speaker 506, described speaker 506 is fixed on the bottom of rear sleeve 507, and described anterior cannula 502, rear sleeve 507 exist In Active Noise Control room 400, the respective back side is closing funnel formula reflecting wall 508, and described anterior cannula 502 is opened with the two of rear sleeve 507 Mouth end, concentric is parallel relatively, and a side wall of described Active Noise Control room 400 is provided with air outlet 601, outside described air outlet 601 Being set with long packing element type pad 602 week, described long packing element type pad 602 is fixed by socket with vacuum chamber outer wall 103, Active Noise Control chamber outer wall 603, 103 points of front portions of described vacuum chamber outer wall and reducing rear portion 604, described vacuum chamber outer wall 103 is anterior and reducing rear portion 604 degree of depth is inserted Connect, the anterior gap with reducing rear portion 604 degree of depth grafting part of described vacuum chamber outer wall 103, J cross sectional annular rubber cushion 605 fill out Fill；Described earplug speakers 200, by the speaker 202 bottom the three deep cup of vacuum 201 and the deep cup of three vacuum 201, adds three vacuum deep The malleable ear plug 203 of cup 201 rim of a cup extensions is constituted.

Claims (8)

1. phone vacuum shell active silencer, includes resistance expansion chamber, narrow frequency room, Active Noise Control room and earplug speakers, its It is characterised by: the annulus between the outer wall lip end of described resistance expansion chamber, and vacuum chamber outer wall lip end, close by LO shape The convex rubber cushion at the seal back side fills interval, the O in front of described LO shape sealing ring, L-shaped sealing ring, coincide with lip folding Type becomes, periphery, airtight oral cavity, in the middle of the outer wall of described resistance expansion chamber and vacuum chamber outer wall, is provided with ring apron, described resistance The inner wall at end of expansion chamber, is provided with main mike, and described main mike is bonded in the bottom of the one deep cup of vacuum, described expansion chamber Inner wall at end is densely covered with multiple reducer pipe, and described reducer pipe two ends are all by being sleeved on the rubber cushion cylinder of periphery, with resistance expansion chamber End wall, narrow frequency room antetheca are fixed by socket, and described narrow frequency room is connected active dead room, described anterior cannula front inner wall by anterior cannula Being fixed with the two deep cups of vacuum, the opening of the described two deep cups of vacuum is towards at oral airflow, and the bottom of the described two deep cups of vacuum is glued The secondary mike connect, by raising one's voice in the narrow audio signal transmission received to distal center position, Active Noise Control room rear sleeve Device, a lateral edges of described Active Noise Control room is provided with air outlet, escapes for oral airflow, and described vacuum chamber outer wall divides front portion and change Rear portion, footpath.

Phone vacuum shell active silencer the most according to claim 1, it is characterised in that: described anterior cannula is positioned at narrow frequency room In front top seal, the supervisor symmetrical by circumference ventilate, the end seal of described supervisor, and the tubule symmetrical by circumference ventilates, Having multiple penetrating boring on the tube wall of described tubule, the end of described tubule does sealing and processes, and described tubule is on supervisor's circumference Even numbers is symmetrical arranged, and described supervisor even numbers on anterior cannula circumference is symmetrical arranged.

Phone vacuum shell active silencer the most according to claim 1, it is characterised in that: the rear wall of described Active Noise Control room Center, is provided with speaker, and described speaker is fixed on the bottom of rear sleeve, and described anterior cannula, rear sleeve are in Active Noise Control The back side in room is funneling reflecting wall, and described anterior cannula and two openings of rear sleeve, concentric is parallel relatively.

Phone vacuum shell active silencer the most according to claim 1, it is characterised in that: described air outlet periphery is set with Long packing element type pad, described long packing element type pad is fixed by socket with vacuum chamber outer wall, Active Noise Control chamber outer wall, described air outlet axial line with have Dead room horizontal central breaks in source is overlapping, i.e. air outlet is positioned at the centre position that limit, Active Noise Control room wall is longitudinal.

Phone vacuum shell active silencer the most according to claim 1, it is characterised in that: described vacuum chamber outer wall is divided into very Cavity outer wall front portion and reducing rear portion two parts, described vacuum chamber outer wall front portion and the degree of depth grafting of reducing rear portion, described vacuum chamber The anterior centre with reducing rear portion degree of depth grafting part of outer wall, has J cross sectional annular rubber cushion to fill and is separated by.

6. according to the phone vacuum shell active silencer described in claim 1 or 4 or 5, it is characterised in that: described vacuum chamber outer wall Front portion and reducing rear portion two parts and the convex rubber cushion at the LO shape sealing ring back side, J cross sectional annular rubber cushion and air outlet long packing element type pad group Become the shell of vacuum chamber, resistance expansion chamber outer wall appearance, reducer pipe outer wall appearance, rubber cushion cylinder, narrow frequency chamber outer wall appearance, active disappear Sound chamber's outer wall appearance and air outlet long packing element type pad outer layer exposed surface collectively form the inner shell of vacuum chamber.

Phone vacuum shell active silencer the most according to claim 1, it is characterised in that: described earplug speakers is true by three Speaker bottom empty deep cup and the deep cup of three vacuum, the malleable ear plug adding three vacuum deep cup rim of a cup extension is constituted.

8. according to the phone vacuum shell active silencer described in claim 1 to 6, it is characterised in that: described phone vacuum shell Active silencer is the handle portion of landline telephone, or the extention as mobile phones integrated use, can be attached to mobile phone Any one side beyond screen, follows the difference of area, changes chamber concrete under vacuum shell interlayer parcel, room, pipe, hole plane Position, or each chamber of combination of the formula that plays with building blocks, pore, and it is provided with source dead room, the oral airflow having air-out (mouth) mouth to connect disappears Sound passage.