CN110139179A - Noise reduction anti-radiating earphone - Google Patents

Abstract

The present invention relates to noise reduction anti-radiating earphones, mainly it is provided with noise reduction audio signal converting system, the transmission of active noise reduction audio signal is effectively converted to the transmission of passive audio signal, the transmission of active audio frequency signal can be restored to again after being up to 1000mm very much, in addition it is also provided with and a kind of directly drives remote microphone with air conduit, two kinds of methods can make the human body radiation of isolation communication equipment over long distances and solve microphone and have to the technical issues of setting except air conduit, it solves the problems, such as to wait for for a long time and is injured brain by accumulation in electric appliance and other communication equipments.So this invention is not only high-intensitive ground radiation protection but also the earphone of the excellent safety of antinoise.

Description

Noise reduction anti-radiating earphone

Technical field

The present invention relates to a kind of radiation protection or noise reduction anti-radiating earphones, and more particularly, it relate to one kind to be used for mobile phone The radiation protection insert earphone and stereo radiation protection insert earphone of the stronger communication equipment of the radiation such as equal high frequency magnetic fields, more particularly to What a kind of frequency response was actually improved, and the insert earphone of better stereophonic effect can be generated, than traditional line traffic control ear The frequency response of machine will also be got well.

Background technique

Common insert earphone, such as the insert earphone worn on mobile phone or other communication equipments, including plug, conducting wire and earplug Head, the built-in Microspeaker of earplug head.Due to directly using mobile phone making and receiving calls, the nocuousness such as hyperfrequency magnetic field caused by mobile phone Radiation can seriously stimulate the cerebral nerve of people, influence the health of people, and people often take mobile phone using insert earphone to subtract Few damage of a variety of radiation such as hyperfrequency word field and electric wave, thermal energy to human brain.But using direct in earplug head The common insert earphone of installation loudspeaker is not still avoided that the radiation for receiving such as hyperfrequency word field etc is passed by earplug head It is sent to the danger that brain is directly endangered inside ear.In addition, the earplug head of this built-in loudspeaker per se with it is high 1600 high This permanent magnet magnetic field equally will also result in damage to human brain.Therefore, for a long time, high frequency time using mobile phone or Such insert earphone is all easy to produce the symptoms such as headache, dizziness, head fiber crops.

The earphone of the anti-electromagnetic radiation of prior art, such as Patent No.: ZL02244828.4, title are as follows: radiationless ear Machine, although can be reduced electromagnetic radiation, since one only has the channel of acoustic wave of 5-10cm, secondly be not provided with metallic shield every It is offline so 2mG (milligauss, the same below) or 2mG requirement below is not achieved, and control in 2mG or 2mG hereinafter, be due to Electromagnetic field and electromagnetic wave have injury, mobile phone inventor Stanford Univ USA doctor, American Engineering institute doctor, China to human body Taiwan university of communications Shi Min teaches requirement.Therefore, the earphone of technology can not meet wanting for above-mentioned electromagenetic wave radiation before It asks.Therefore, frequency response is bad；The Patent No. of the present inventor's application: 200810167226.5, title are as follows: noise reduction radiation protection The application documents of earphone also disclose five Xiang Faming of noise reduction anti-radiating earphone, disclose the method and raising for realizing radiation protection The method of sound quality, has obtained the national patent in nine, the world, but the sound quality of the patent there is not beyond tradition earphone, and 2017 The safety earphone of year 21 Japanese publication people in May application, is exactly to disclose sound quality beyond tradition application No. is 201710417231.6 Earphone and also the effect of radiation protection can be improved again, achieve the effect that radiationless.

It really is able to high-performance in conclusion people are a long felt need for one kind and prevents electromagnetic radiation and frequency response than passing The system better earphone of earphone, a kind of earphone that frequency response is actually improved, one kind have radiationless, preferably stereo The earphone of effect.

Summary of the invention

The present invention relates to the earphones of safety, mainly include the safety earphone of wire controlled safety earphone and wear-type, use Multiple loudspeakers of different frequency responses supply two ears to listen respectively, so frequency response is especially good, than traditional earphone also than It is good, and it is provided with noise reducing special scheme, it is more importantly provided with noise reduction audio signal converting system, it effectively will be active The transmission of noise reduction audio signal is converted to the transmission of passive audio signal, and the transmission for being restored to active audio frequency signal makes air The passive signal transmission of conduit can be placed in the length except 1000mm length or 1000mm, be isolated because being provided with metallic shield Line is so make the radiation of human body isolation communication equipment over long distances, but microphone still keeps close distance with pronunciation mouth, to reach Noise reduction reaches highly radiation-proof effect again and has high tone quality well, and solve existing anti-radiating earphone microphone must The technical issues of need setting except air conduit, because effect of the microphone from remote microphone is with regard to poor, sound is also small.

So this invention is strictly not only high-intensitive ground radiation protection but also the ear of the excellent safety of high tone quality also antinoise Machine.

A kind of noise reduction anti-radiating earphone, its structure setting of the noise reduction wear-type anti-radiating earphone have left ear to listen cover, sound chamber Cover, left ear shell, auris dextra listen cover, auris dextra shell, headband, switch and switch housing, noise reduction transfer arm, noise reduction converter, left outside Shell, speaker housings, plug；It is provided with noise reduction converting system

: by microphone 280 of noise reduction, active audio frequency signal is converted to the transmission of passive audio signal, then returns to active The transmission of audio signal is provided with a microphone lead connection secondary audio amplifier circuit and pushes loudspeaker, and circuit amplifies function Rate and series and performance are selected according to length, the diameter of selected vibrating diaphragm air conduit, loudspeaker, the connection of pronunciation mouth The big end of sound wave concentrator, sound wave concentrator, small end are connect by rivet with one end of vibrating diaphragm air conduit, vibrating diaphragm air The other end of conduit is connected with the small end of loudspeaker accent chamber, and the big end of loudspeaker accent chamber is connect with the called face of secondary microphone；From The connection that the pronunciation mouth of the loudspeaker passes through air conduit to the called face of secondary microphone is sealing；Secondary microphone One end of other end lead connection metallic shield shielding wire, the one of the other end connection plug of the metallic shield shielding wire End, the other end of plug and the socket of communication equipment connect；

Converting system active part be equipped with electronic circuit board and be equipped with battery powered circuitry and device power supply, be equipped with The charging circuit and charging socket of battery connection, are equipped with power supply instruction luminous tube and power switch, and above-mentioned converting system has The device of source audio signal is all mounted in converter shell, and it is certain that the loudspeaker of converting system is mounted on from one time microphone In the middle part of the microphone of the distance or outside of left ear shell sound chamber, circuit can change the amplification of circuit according to vibrating diaphragm air conduit length Power selects different chips and different circuits.

Microphone, which uses, active to be converted to passive transmission and then returns to active transmission and air conduit can be arranged very It is long, and keep microphone close from pronunciation mouth, to achieve the effect that noise reducing, reached it is high prevent communication equipment to ear and The injury of brain.

Another termination sound wave concentrator small end of the entrance of left ear air conduit one end sending and receiving sound chamber, the sound wave are concentrated Device big end connects loudspeaker, and loudspeaker other end lead connects metallic shield conducting wire, and auris dextra air conduit one terminates auris dextra sounding The entrance other end of sound chamber arrives loudspeaker by left ear shell is parallel with left ear air conduit along the outside that metal bends or inside Cage connection auris dextra sound wave concentrator small end, the auris dextra sound wave concentrator other end connect right ear speakers, and right ear speakers are another It holds lead to connect metallic shield conducting wire, one end of another section of metallic shield conducting wire is connected to by switching, the metallic shield is led The other end of line is all connected with plug.Or two loudspeakers of left and right ear and left and right otoacoustic emission wave concentrator and secondary microphone are located at In switch housing, connection type is constant, and the outlet for the chamber that pronounces sets single hole or multiple apertures, and the convection holes of above-mentioned loudspeaker are set as It is arranged to the outside of the shell of installation, microphone will be isolated with loudspeaker；

Three air conduit flat raft bondings or triangle merge into a single whole or triangle merges into a single whole, and flexible material is used in outside Package or three air conduit above situation controls are integrated, and are not had to any material and are surrounded；

Or the air conduit for setting auris dextra has some setbacks from speaker housings oblique pull to the connection of the entrance of auris dextra sounding sound chamber Metal bow be introduced through；

Or above-mentioned three air conduits are set before the switch of the speaker housings for the audio signal for sending communication equipment It draws or all air conduits is all drawn from the face E, i.e., the face E shown in Figure 29 is drawn, and is connected in left ear shell；

The each seam of shell will gluing water-stop waterproof when assembly.

Noise reduction anti-radiating earphone as described above, the air conduit microphone of remote noise reduction,

Further being arranged is

The big end that vibrating membrane is mounted on sound wave concentrator is set, and the outside of vibrating membrane adds lid, and lid is equipped with multiple Vibrating membrane is simultaneously fastened the big end in sound wave concentrator by through-hole.The one of the small end connection air conduit of the sound wave concentrator End, the other end of air conduit connect another bell-mouthed small end, and the bell-mouthed big end connects lapel mike, From the called face of lapel mike up to all sealings in junction in the periphery of lid, lapel mike is exposed The jacketed sealing in surface except sound wave concentrator, sound wave concentrator and bell-mouthed angle are 90 ° to 160 °；

The conducting wire connection signal amplifier of lapel mike, the dynamic rate of amplification determine according to actual needs, signal amplifier Output end connection metallic shield shielding wire pass through connector again and connect communication equipment；

Or small microphone is directly connected to metallic shield shielding wire to communication equipment, if the impedance of lapel mike is not Matching is just connected to metallic shield shielding wire by impedance transformer in the output end of lapel mike and is connected to communication equipment again；

Air conduit length is set as 30mm to 1500mm, Kong Wei 1mm to 5mm, arbitrarily chooses length and hole according to specific requirement Diameter；

The small microphone of all noise reduction anti-radiating earphones can be installed to replace in horn mouth by the present apparatus the small Mike of technology Wind is placed in obedient air conduit length with the small microphone of external position；Or by lid, vibrating membrane, sound wave concentrator, air The mouthpiece that conduit is constituted, the mouthpiece can will be from mouth different distance position or far positions with various sizes of horn mouth Small microphone is connected to mouth by the air conduit of different length, has achieved the purpose that the effect of noise reduction and radiation protection；

A kind of structure of air conduit microphone sound pick-up is described:

The vibrating diaphragm of the air conduit microphone is mounted on the sound wave concentrator with bend pipe, and sound wave concentrator is to use It is anchored in upper cover, also with upper cover is anchored to, the lumen of the sound wave concentrator with bend pipe is inserted into universal transfer arm rear cover It is air conduit, air conduit is by being connected to the various small microphones to be selected.

Noise reduction anti-radiating earphone as described above,

A kind of full air conduit noise reduction anti-radiating earphone of monophonic circuit ears wear-type is described, characteristic is:

The audio signal wire of the metallic shield shielding wire of signal is connected to from the signal of plug from communication equipment answers signal Line is connected to big loudspeaker, and the big end of the other end connection sound wave concentrator of big loudspeaker, the small end of sound wave concentrator connects compound The big pipe of air conduit, the long end of the other end connection threeway of big pipe are simultaneously tightened, another termination sealing ring of threeway with band, The other end of another termination auris dextra branching air conduit of sealing ring, auris dextra branching air conduit connects sealing ring, and sealing ring is another One end connecting bend, the other end of elbow connect sound chamber, and the bottom surface of elbow is provided with mounting plate and is fixed on auris dextra with 4 screws In shell and it is equipped with positioning pin, the position of accurate elbow, the outlet of sound chamber sets porous cover board；

The upper surface of threeway sets a small siphunculus, and one end of small siphunculus is equipped with small sound wave concentrator and connects threeway, and small siphunculus is another End connects small sound chamber, is equipped with sound chamber lid plate above small sound chamber, and sound chamber lid plate is equipped with multiple apertures penetrated, or by small siphunculus It is merged into sound chamber；

Structure setting loose slot enables shelf and auris dextra branching air conduit in the angle of oscillation activity of setting, sealing Circle is located at the flexible materials such as the axle center blend rubber of swing and is made, and makes the activity of shelf and auris dextra air conduit flexibly, The transmission of sound wave is without hindrance；

The internal diameter of small siphunculus is more much smaller than the internal diameter of threeway, and specific size is by leading to the subwave of the brasnch conduct of auris dextra Value calculates determination, or be adjusted to both sides ear wave volume it is consistent；

The bottom of threeway is equipped with mounting plate, and mounting plate is equipped with aperture, the bottom surface of left ear shell 276 is installed to screw Positioning pin is gone up and set, threeway is accurately mounted on left ear enclosure bottom.From the auris dextra sound chamber of big loudspeaker sound mouth always The junction of cover board and the cover board to left power of hearing chamber all seals, and leak sound wave will not, the sound for issuing big loudspeaker is complete Portion is sent to left-right ear and listens.

If volume is too small or sets an audio amplifier circuit in big loudspeaker front end, amplifying circuit is mounted on big loudspeaking In device shell, the size of amplifying circuit amplifying power is selected as needed, and current turns ON believes the power supply of machine；

Called converting system provided with a complete noise reducing: a microphone of noise reduction has passed through the promotion of amplification mouth Loudspeaker, the big end of the sound mouth connection sound wave concentrator of loudspeaker, the small end of sound wave concentrator connects small air conduit, small Air conduit from the universal transfer arm of noise reduction through left ear shell in, be connected to Hard link head, the other end of Hard link head is inserted into multiple One end of the tubule of air conduit is closed, it is logical across isolation board that the other end of the tubule of composite air conduit connects curved hard tube Small hose is connected to the small end of small sound wave concentrator, and the big end of small sound wave concentrator connects the called face of secondary microphone, secondary microphone Conducting wire the called line of metallic shield shielding wire is connected to by the control of switch, this switch can will be cut-off by telephone system, make other side The speech of user is heard or can't hear, then by connector connection communication machine, the battery of converter is mounted on converter shell Interior, converter shell is equipped with indicator light instruction power supply and cut-offs, and the light penetrating object of indicator light is moulded on the shell of converter, Equipped with cut-offfing for switch control power supply, switch rubber seal, the charging jacks equipped with waterproof charge to battery, loudspeaker It is equipped with plug-in type isolation board between amplifying circuit and a microphone three and is inserted into frid, it is close to place flexible material in frid Envelope, the wiring of loudspeaker is passed through from isolation board uses glue sealing, and converter shell is screwed on Universal arm or with being molded Fixed on Universal arm, one pipe of composite air conduit of setting is managed equipped with size two, and appearance seems only one, reality There are two passes, it is not only beautiful but also light；

Or curved hard tube directly merges into a single whole with threeway and leads to as five, bend pipe one end in merging and original Connection type is the same, and the other end of bend pipe is connect with sealing ring one end, the air in the other end of sealing ring and universal transfer arm Conduit connection, the air conduit of the other end of universal transfer arm are connect with the small end of sound wave concentrator, the big end of sound wave concentrator Vibrating diaphragm connection is installed, the structure and connection type of originally threeway part are constant, and the bolt that universal transfer arm is processed as two planes is inserted Enter the hole that left ear shell matches, is fastened and installed with nut；

It is equipped with isolation board in shell big loudspeaker is isolated with secondary receiver, in case big loudspeaker interferes secondary microphone.

Noise reduction anti-radiating earphone as described above,

Its characteristic is:

The full air conduit noise reduction anti-radiating earphone noise reduction of monophonic circuit ears wear-type according to claim 3 The structure of Mike is that active audio signal is converted to the device that passive signal is restored to active audio frequency signal again.

The conduction pattern of the Mike of this item noise reduction and above-mentioned difference, remaining structure and the claims noise reduction safety Structure be the same.

This item is to apply air conduit microphone, and a shell, the shell are installed in the end of universal transfer arm Interior installation mouthpiece, the mouthpiece include lid, vibrating membrane, sound wave concentrator, small air conduit, the small air Conduit from the universal transfer arm of noise reduction through left ear shell in, be connected to Hard link head, the other end of Hard link head is inserted into compound air One end of the tubule of airway, the curved hard tube of other end connection of the tubule of composite air conduit lead to small soft across isolation board Pipe is connected to the small end of the toy trumpet mouth of small microphone, and the big end of toy trumpet mouth connects the called face of small microphone, small microphone Conducting wire is connected to the called line of metallic shield shielding wire by the control of switch, this switch can will be opened or be disconnected by telephone system, makes Other side hears or can't hear the speech of user, then is in this way that passive audio signal is straight by connector connection communication machine Pick small microphone and generate active signal, without conversion, above-mentioned lid against shell surface be provided with multiple small open-works or Sound wave concentrator is mounted directly to shell and opens in multiple Aperture sides and clamp vibrating membrane, the periphery of above-mentioned each junction by person It is sealing, circuit is relatively simple, and cost is relatively low；

It being equipped with isolation board in shell big loudspeaker is isolated with small microphone, conducting wire passes through from isolation board and uses glue sealing, In order to avoid big loudspeaker interferes small micro-phone.

If the output signal power of small microphone is inadequate, an audio amplifier circuit is set in the output end of small microphone, Amplify the output audio signal of small microphone, this amplifying circuit or shares power supply or common with the amplifying circuit of big loudspeaker It is mounted on a wiring board, installation battery powers inside the shell or powers from communication equipment extracting power supply cord；

The advantages of this structure is exactly power supply used all far from brain and ear, can absolutely reach radiation-proof effect.

Noise reduction anti-radiating earphone as described above,

Its characteristic is:

The noise elimination structure of the sound of the loudspeaker back side sending of earphone is set: being adapted power of loudspeaker with thinner thickness Cover point two layers of chamber containment at the back side of loudspeaker, two layers of chamber has certain volume, and intracavitary air is made to have elasticity, cover Thickness selected according to the size of loudspeaker, be screwed on the periphery for being mounted on sound wave concentrator, or adhered to glue The periphery of sound wave concentrator；

Or setting one has the silencer of resonant cavity, leads to several pipes in resonant cavity, is provided on pipe and penetrates resonance The densely covered aperture of chamber, before two pipes merge into a tube head and be followed by carrying on the back the sound mouth of the latter cover in a loudspeaker, It is namely connected in the outlet of one cover in periphery of sound wave concentrator big end, this outlet is also equipped with thin film to loudspeaking Device waterproof, behind the rear ends of two pipes collect in the pipe for being connected to sound-absorbing material, eventually become gas outflow silencer, Sound in several pipes is just sent out from aperture to resonant cavity, is just generated and is resonated in resonant cavity, i.e. sound offsets each other sound Sound, and achieved the purpose that eliminate the noise, the talent for just only wearing earphone in this way can hear sound in earphone, play privacy functions Others is not interfered with.

Noise reduction anti-radiating earphone as described above,

Its characteristic is:

Noise reducing monaural anti-radiating earphone is arranged flexible bow folder and is mounted on shell, pacifies in the end of bow folder Fill elongated intermediate plate or other shapes of intermediate plate, the sponge embedded with softness on the inside of intermediate plate；

The universal transfer arm of cage connection of the sound collector of vibrating diaphragm is filled, the sound wave concentrator of sound collector connects universal transfer arm In air conduit one end, the other end of the air conduit in the universal transfer arm connects adjustable arm, the adjustable arm The other end is inserted into the one end for being connected to sealing ring, and one end of the A pipe of the other end connection four-way of the sealing ring is described The other end of the A pipe of four-way connects one end of small microphone conduit, is equipped with spring outside sealing ring 295-A, spring one end abuts In one plane of the inside of adjustable arm shell, the other end is connect with sealing ring inner side plane, and the other end of sealing ring connects four-way One end on the outside of a plane against the corresponding other end of four-way is connect with one end of small microphone conduit, small microphone conduit The other end with by being connect with the small microphone of sound wave concentrator, the small microphone is connected to metallic shield shielding wire, It is connected to connector；

Audio signal is connected to loudspeaker from connection-peg access metallic shield shielding wire, and the loudspeaker goes out sound Face connects sound wave concentrator, and the small end of the sound wave concentrator connects air conduit, the other end of the air conduit and four One end of logical B pipe connects, and the other end of the B pipe connects out the operatic tunes, and the operatic tunes that goes out is equipped with cover board, the lid The cavity portion position of speaking of plate is provided with multiple apertures, and the periphery of the cover board is equipped with cushion, opened on cover board there are four or it is several rectangular Hole is anchored in the back-off of the protrusion of shell and fixes, and four-way is screwed on the inside of cover board；

Air conduit and small microphone conduit, which merge into a single whole, is made into noodles formula flat, or be made into it is other shapes of, one End is mounted in soft set, and soft set is inlaid on the outer periphery of shell；

One end of adjustable arm connection sealing ring is provided with lamelliform external gear, and is provided with back-off, utilizes back-off activity Inside the shell, external gear carries out leapfrog positioning by the claw in shell for installation, gear is positioned, that is, enable adjustable arm 355 ° of leapfrogs are rotated and are positioned, and adjustable arm also acts as slidable rear cover effect；

Loudspeaker and sound wave concentrator are installed along in shell, and shell is provided with clip, can be pressed from both sides using the clip On clothes, or it is not provided with clip, shell installs air conduit and the installation place of the air conduit other end is equipped with soft set, institute Soft set also is provided at the shell other end installation metallic shield shielding wire stated；

One clip is installed, the center installation bow arm of clip, the bow arm is can be 360 ° turns on obedient device shell Dynamic, it cooperates the rotation of adjustable arm to enable earphone left and right ear that can use.

Noise reduction anti-radiating earphone as described above,

Its characteristic is:

Or it sets the transfer tube that four connect microphone air conduit transfer tube and loudspeaker air conduit to side by side , because microphone air conduit is connected by the A pipe of four-way with adjustable arm B, and adjustable arm is 355 ° of rotations of needs, so It must set and be convenient for being sealed again with rotation in sealing shroud in center, and the transfer tube of speaker conduit is set in eccentric position It sets, but the operatic tunes is still set in center out, this nor affects on the transmitting of the sound of loudspeaker, constitutes setting side by side；

Such four-way setting can be reduced the thickness of the shell of obedient device, and shape is made to be made very thin, beautiful shape, weight Mitigate, it is comfortable that user understands feeling relaxed；

Remaining such as mode of installation is acted on as claim 6, and the four-way is the same.

Noise reduction anti-radiating earphone as described above,

Its characteristic is:

Clip on obedient device shell is cancelled, while tack being installed, remaining structure and structure as claimed in claim 7 Equally, the shape of hook is as shown in figure 22；

Or cancel bow arm, hook is installed in clip, remaining is as claim 6.

Noise reduction radiation protection safety earphone according to claim 1, which is characterized in that a microphone peripheral hardware It is equipped with waterproof and leads the water proof plastic foil of sound, serve as a contrast waterproof in the periphery setting rubber of the button 286-1 of switch, out operatic tunes 291-1 301 outlet, the import of exit outside the logical machine at the loudspeaker back side both Figure 24 silencer.

Noise reduction radiation protection safety earphone according to claim 11, it is characterised in that: install the loudspeaker Shell lower end is provided with a small chamber, and the small microphone is mounted on the small intracavitary of speaker housings lower end.Loudspeaking is installed It is closed that partition is set, only admittance pipe and conducting wire between the small chamber of chamber and speaker housings lower end of device, blend compounds water seal.

It effectively prevent interference of the loudspeaker 207-2 to microphone 204-2 in this way.

Detailed description of the invention

Fig. 1 is connection and the structure chart for indicating air conduit microphone, is the schematic diagram for not having shell；

Fig. 2 is F direction view；

Fig. 2-1 is M to direction view；

Fig. 3, which is air conduit microphone, is mounted on the schematic diagram that sound wave concentrator is mounted in again in shell with vibrating diaphragm；

Fig. 4 is the sectional view of steel bow and auris dextra branching air conduit package；

Fig. 5 is by the outline drawing after steel bow expansion；

Fig. 6 is noise reduction stereo monophonic ears safety earphone auris dextra section H1-H1 sectional view；

Fig. 7 is that noise reduction stereo safety earphone goes in one ear and out the other sound chamber J-J sectional view；

Fig. 8 is Q2-Q2 sectional view, it can be preferred to, can be using on most a variety of earphones on the earphone shown in Figure 12；

Fig. 9 is Q-Q sectional view；

Figure 10 is Q1-Q1 sectional view, can be applied on a variety of earphones, the section of Fig. 8, Fig. 9, Figure 10 or individual for 2 Air conduit, or be bonded together with independent air conduit；

Figure 10-1 is F-F sectional view；

The monophonic ears that Figure 11 indicates that active signal is converted to the transmitting of passive signal air conduit through amplifying circuit are empty Airway earphone schematic diagram；

Figure 12 is indicated with vibrating diaphragm air conduit microphone in monophonic ears air conduit earphone schematic diagram；

Figure 13 is to indicate I Figure 12 enlarged drawing；

Figure 14 indicates monophonic ears air conduit earphone auris dextra K-K sectional view；

The structural schematic diagram for connecing and changing in audiphone is led in Figure 15 expression with five；

Figure 16 is the sectional view for indicating Universal arm end；

Figure 17 is to indicate that Universal arm 277-1 is mounted on the type profile figure of shell upper position, diagram be two to plane or One walks to plane；

Figure 18 is Universal arm in the installation of this one end of converter and the sound insulation schematic diagram of loudspeaker and small microphone；

Figure 19 is the sectional view of A2-A2；

Figure 20 is the left view schematic diagram of noise reducing monaural anti-radiating earphone structure；

Figure 21 is the schematic front view of noise reducing monaural anti-radiating earphone structure；

Figure 22 is the structural schematic diagram of the monaural anti-radiating earphone of noise reducing ear suspension type；

Figure 23 is a kind of thin cover loudspeaker back sound silencer of double type；

Figure 24 is that a kind of equipped with resonant cavity and have the silencer of sound arrester；

Figure 25 is C enlarged drawing sectional view；

Figure 26 is the schematic diagram that universal transfer arm 200-B leapfrog walks；

Figure 27 is the C-C cross-sectional view of Figure 28；

Figure 28 is the structural schematic diagram of four-way；

Figure 29 is the B-B schematic cross-sectional view of Figure 28；

Figure 30 is the partial schematic diagram of noise reducing anti-radiating earphone structure another kind microphone mounting means.

Specific embodiment

Embodiment 1

Noise reduction anti-radiating earphone as described above,

Its characteristic is: this example uses noise reduction wear-type anti-radiating earphone, and structure setting has left ear to listen cover 195, left ear Shell 195-1, auris dextra listen cover 194, auris dextra shell 194-1, headband 185, switch and switch housing 191, noise reduction transfer arm 198, Noise reduction converter 196, shell 195-1, speaker housings 190, plug 193；It is provided with noise reduction converting system: noise reduction is primary Microphone, active audio frequency signal are converted to the transmission of passive audio signal, are provided with a microphone lead connection secondary audio amplification Device circuit pushes loudspeaker, length according to selected vibrating diaphragm air conduit of circuit amplifying power and series and performance, diameter And select, the big end of the pronunciation mouth connection sound wave concentrator 205,206 of loudspeaker 207,208, sound wave concentrator 205,206 Small end is connect by rivet with one end of vibrating diaphragm air conduit 189-1, the other end and horn mouth of vibrating diaphragm air conduit 189-1 203 small ends of sound chamber connect, and the big end of loudspeaker accent chamber 203 is connect with the called face of secondary microphone 204；From the loudspeaking The connection that the pronunciation mouth of device passes through air conduit to the called face of secondary microphone is sealing；The other end lead of secondary microphone One end of connection metallic shield shielding wire 193, the one of the other end connection plug 193 of the metallic shield shielding wire 192 End, the other end of plug 193 and the socket of communication equipment connect；

Converting system active part be equipped with electronic circuit board and be equipped with battery powered circuitry and device power supply, be equipped with The charging circuit and charging socket of battery connection, are equipped with power supply instruction luminous tube and power switch, and above-mentioned converting system has The device of source audio signal is all mounted in converter shell, and it is certain that the loudspeaker of converting system is mounted on from one time microphone In the middle part of the microphone of distance.

Microphone, which uses, active to be converted to passive transmission and then returns to active transmission and air conduit can be arranged very Long, and keep microphone close from pronunciation mouth, to achieve the effect that noise reducing, while having reached high prevents communication equipment to ear Piece and brain injury.

Another 205 small end of termination sound wave concentrator of entrance of left ear air conduit 187-1 one end sending and receiving sound chamber 209-1, 205 big end of sound wave concentrator connects loudspeaker 207, and 207 other end lead of loudspeaker connects metallic shield conducting wire 193；It is right The entrance other end that ear air conduit 188-1 mono- terminates auris dextra sounding sound chamber passes through left along the outside of metal bow 186 or inside The ear shell 195-1 speaker housings 190 that arrive parallel with left ear air conduit 187-1 connect 206 small end of auris dextra sound wave concentrator, 206 other end of auris dextra sound wave concentrator connects right ear speakers 208, and the 208 lead other end of right ear speakers connects metallic shield Conducting wire 193, is connected to one end of another section of metallic shield conducting wire 192 by switch 191, the metallic shield conducting wire 192 it is another One end is all connected with plug 193.

Three air conduit flat raft bondings, outside is wrapped up with flexible material.

Embodiment 2

This example uses the air conduit microphone of remote noise reduction

The big end that vibrating membrane 262 is mounted on sound wave concentrator 263 is set, and the outside of vibrating membrane 262 adds lid 261, lid Son 261 is equipped with multiple through-holes and vibrating membrane 262 is fastened the big end in sound wave concentrator 263.The sound wave concentrator One end of 263 small end connection air conduit 264, the small end of the other end connection horn mouth 265 of air conduit, the loudspeaker The big end of mouth 265 connects small microphone, the connection all up to the periphery of lid 261 from the called face of small microphone 266 Locate all sealings, the angle of sound wave concentrator 263 and horn mouth 265 is 120 °；

The connection amplification mouth 68 of conducting wire 267 of lapel mike, the output end connection metallic shield shielding wire for amplifying mouth lead to again It crosses connector and connects communication equipment；

The length of air conduit 264 is set as 300mm, Kong Wei 3mm, and the present apparatus can install the microphone of all noise reduction radiation protections Prior art microphone is replaced to be placed in obedient air conduit length with the small microphone 266 of external position into horn mouth 265.

Embodiment 3

This example does not use amplifier, and conducting wire 267 is exactly directly connected to metallic shield shielding wire to communication equipment, if small The impedance mismatch of type microphone just the output end of lapel mike by impedance transformer 269-1 be connected to metallic shield every It is connected to communication equipment again offline；Remaining setting is in the same manner as in Example 2.

Embodiment 4

The present embodiment uses the mouthpiece for constituting lid 261, vibrating membrane 262, sound wave concentrator 265, air conduit, Small microphone from the far position of mouth can be connected to mouth with various sizes of horn mouth by the mouthpiece, reach noise reduction The effect of purpose and radiation protection, remaining setting structure is in the same manner as in Example 2.

Embodiment 5

This example uses a kind of full air conduit noise reduction anti-radiating earphone of monophonic circuit ears wear-type

Connecing for the audio signal wire of the metallic shield shielding wire 289 of signal is connected to from the signal of plug 290 from communication equipment Signal wire is listened to be connected to big loudspeaker 284, the big end of the other end connection sound wave concentrator 284-1 of big loudspeaker 284, sound wave collection The big pipe 288 of the small end connection composite air conduit 283 of middle device 284-1, the long end of the other end connection threeway 290 of big pipe 288 And tightened with band 300, another termination auris dextra branching air of another termination sealing ring 295 of threeway 290, sealing ring 295 is led The other end of pipe 294, auris dextra branching air conduit 294 connects sealing ring 292, and 292 other end connecting bend 291 of sealing ring is curved First 291 other end connects sound chamber 291-1, and the bottom surface of elbow is provided with mounting plate 274-1 and is fixed on auris dextra with 4 screws 293 In shell 274 and it is equipped with positioning pin, the position of accurate elbow, the outlet of sound chamber sets porous cover board；

The upper surface of threeway 290 sets a small siphunculus 302, and one end of small siphunculus 302 is equipped with small sound wave and concentrates mouth 302-1 connection Threeway 290, small 302 other end of siphunculus connect small sound chamber 301, and small sound chamber 301 is equipped with sound chamber lid plate 301-1, sound chamber lid plate above 301-1 is equipped with multiple apertures penetrated；

Structure setting loose slot 270 enables shelf 273 and the auris dextra branching air conduit 272 in the angle of oscillation of setting Activity, sealing ring 295, which is located at the flexible materials such as the axle center blend rubber of swing, makes shelf 273 and auris dextra air conduit Flexibly, the transmission of sound wave is without hindrance for 272 activity；

The internal diameter of small siphunculus 302 is more much smaller than the internal diameter of threeway 290, and specific size is by leading to the brasnch conduct of auris dextra Subwave value calculate determination, keep the ear wave volume on both sides consistent；

The bottom of threeway 290 is equipped with mounting plate 297, and mounting plate 297 is equipped with aperture, is installed to left ear with screw 290-2 On the bottom surface of shell 276 and positioning pin is set, threeway is accurately mounted on left 276 bottom surface of ear shell.Go out from big loudspeaker 284 The junction of the cover board of the auris dextra sound chamber of sound mouth always and the cover board to left power of hearing chamber all seals.It leak sound wave will not, make The sound that big loudspeaker 284 issues all is sent to left-right ear and listens.

If volume is too small or sets an audio amplifier circuit in big loudspeaker front end, amplifying circuit is mounted on big loudspeaking In device shell 286-A, the size of amplifying circuit amplifying power selects as needed；

Called converting system provided with a complete noise reducing: a microphone of noise reduction has passed through amplification mouth 282-A Loudspeaker 278 is pushed, the big end of the sound mouth connection sound wave concentrator 278-B of loudspeaker 278, sound wave concentrator 278-B's is small End connects small air conduit 277-A, small air conduit 277-A from the universal transfer arm 277 of noise reduction through left ear shell 276 in, even It is connected to Hard link head 275, the other end of Hard link head 275 is inserted into one end of the tubule 289 of composite air conduit 283, compound air The other end of the tubule 289 of airway 283 connect curved hard tube 275-A pass through isolation board 285 lead to small hose be connected to it is secondary by The small end of device sound wave concentrator 275 is talked about, the big end of sound wave concentrator 275 connects the called face of secondary receiver 275-B, secondary The conducting wire of receiver 275-B is connected to the called line of metallic shield shielding wire 287 by the control of switch 286, this switch can incite somebody to action It is cut-off by telephone system, so that other side is heard or can't hear the speech of user, then pass through 290 connection communication machine of connector, converter Battery be mounted in converter shell 278-A, converter shell 278-A be equipped with indicator light 281 indicate power supply cut-off, refer to The light penetrating object for showing lamp 281 is moulded on the shell 278-A of converter, equipped with cut-offfing for switch 279-A control power supply, is switched 279-A rubber seal, the charging jacks 282 equipped with waterproof charge to battery, and loudspeaker 278 is with amplifying circuit and once It is equipped with plug-in type isolation board 278-C between 280 three of microphone and is inserted into frid 278-D, it is close to place flexible material in frid 278-D Envelope, the wiring of loudspeaker 278 is passed through from isolation board 278-C uses glue sealing, and converter shell 278-A is fixed with screw 277-A On Universal arm 277, one pipe of composite air conduit of setting is managed equipped with size two, and appearance seems only one, reality There are two passes, it is not only beautiful but also light；

It is equipped with isolation board in shell 286-A big loudspeaker 284 is isolated with secondary receiver 275-B, in order to avoid big loudspeaker The 284 secondary receiver 275-B of interference.

Embodiment 6

This example is the structures for substituting into original threeway and hard tube led to five, carries out the use (such as Figure 15) of full structure, Remaining structure setting is in the same manner as in Example 5.

Embodiment 7

The full air conduit noise reduction anti-radiating earphone noise reduction Mike's of monophonic circuit ears wear-type described in embodiment 6 Structure is that active audio signal is converted to the device that passive signal is restored to active audio frequency signal again.

The conduction pattern of the Mike of this example noise reduction and the difference of embodiment 6, the anti-spoke of noise reduction of remaining structure and embodiment 6 It is the same for penetrating the structure of earphone.

This example is to apply air conduit microphone, and a shell 278-C is installed in the end of universal transfer arm 277-1, Mouthpiece 262-1 is installed, the mouthpiece 262-1 includes lid 261, vibrating membrane 262, sound wave in the shell 278-C Concentrator 263, small air conduit 264, the small air conduit 264 is from the universal transfer arm 277-1 of noise reduction through left ear shell In 276-1, it is connected to Hard link head 275-1, the other end of Hard link head 275-1 is inserted into the tubule of composite air conduit 283-1 One end of 289-1, the other end of the tubule 289-1 of composite air conduit 283-1 connect curved hard tube 275-C and pass through isolation Plate 285-1 leads to the small end that small hose is connected to the toy trumpet mouth 271-1 of small microphone 275-D, and the big end of toy trumpet mouth 271-1 connects The called face of small microphone 275-D is connect, the conducting wire of small microphone 271-1 is connected to metallic shield by the control of switch 286-1 The called line of shielding wire 287-1, this switch can will be opened or be disconnected by telephone system, heard other side or can't hear user's Speech, then by connector 290-1 connection communication machine is that passive audio signal directly arrives small microphone and has in this way The signal in source, without conversion, above-mentioned lid 261 against the face shell 278-C be provided with multiple small open-works, above-mentioned each connection The periphery at place is that the relatively simple cost of circuit of sealing is relatively low；

Be equipped with isolation board 285-1 in shell 278-C big loudspeaker 284-1 is isolated with small microphone 275-D, conducting wire from Isolation board 285-1, which is passed through, uses glue sealing, in case big loudspeaker 284-1 interferes small micro-phone 275-D.

If the output signal power of small microphone is inadequate, an audio amplifier circuit is set in the output end of small microphone, Amplify the output audio signal of small microphone, the amplifying circuit of this amplifying circuit and big loudspeaker shares power supply, this structure Advantage is exactly power supply used all far from brain and ear, can absolutely reach radiation-proof effect.

Embodiment 8

Lid 304 as shown in figure 25,304-1 are installed to the back that sound wave concentrator 284-1 covers loudspeaker 284 Face reduces the sound at the loudspeaker back side, in order to avoid influence others.

Embodiment 9

The noise elimination structure for the sound that the loudspeaker back side that another earphone is arranged in this example issues: being arranged one has resonance The silencer of chamber 306 leads to several pipes in resonant cavity 306, is provided on pipe and penetrates the densely covered aperture 307 of resonant cavity, before Two pipes merge into a tube head and are followed by carrying on the back the sound mouth of the latter cover in a loudspeaker, that is, are connected to sound wave collection In the outlet of one cover in periphery of middle device big end, this outlet is also equipped with thin film to loudspeaker waterproof, behind two pipes Rear end collect in the pipe for being connected to sound-absorbing material, eventually become gas outflow silencer, the sound in several pipes is just It is sent out from aperture 307 to resonant cavity 306, just generates and resonate in resonant cavity 306, is i.e. sound offsets each other sound, and reaches The purpose of noise elimination, the talent for just only wearing earphone in this way can hear sound in earphone, to not interfere with others.

Embodiment 10

This example is arranged flexible bow folder 199-1 using noise reducing monaural anti-radiating earphone and is mounted on shell 200-C installs elongated intermediate plate 202-1, the sponge embedded with softness on the inside of intermediate plate in the end of bow folder；

Fill the universal transfer arm 198-2 of cage connection of the sound collector 196-2 of vibrating diaphragm, the sound wave concentrator of sound collector 196-2 Connect one end of the air conduit in universal transfer arm 198-2, the air conduit in the universal transfer arm 198-2 it is another End connection adjustable arm 200-B, the adjustable arm 200-B other end insertion is connected to one end of sealing ring 295-A, described One end of the A pipe of the other end connection four-way 290-A of sealing ring 295-A, the other end connection of the A pipe of the four-way 290-A One end of microphone conduit 203-1, the outside sealing ring 295-A are equipped with spring 295-B, and the one end spring 295-B abuts against adjustable arm In one plane of inside of 200-C shell, the other end is connect with sealing ring 295-A inner side plane, the other end of sealing ring 295-A A plane is connected on the outside of one end of four-way 209-A against, the corresponding other end of four-way 209-A and microphone conduit 203-1 One end connection, the other end of microphone conduit 203-1 with by have sound wave concentrator microphone 204-2 connect, it is described Microphone 204-2 be connected to metallic shield shielding wire, be connected to connector 206-1；

Audio signal is connected to loudspeaker 207-2 from connection-peg 206-1 access metallic shield shielding wire 205-1, described Loudspeaker 207-2 go out sound face connect sound wave concentrator 205-2, the sound wave concentrator 205-2 small end connection air lead One end of the B pipe of the other end and four-way 290-B of pipe 202-1, the air conduit 202-1 is connect, the B pipe it is another One end connects out operatic tunes 301-2, and the operatic tunes 301-2 that goes out is equipped with cover board 301-C, and the cover board 301-C's goes out the operatic tunes The position 301-B is provided with multiple apertures, and the periphery of the cover board 301-C is equipped with cushion 202-C, opened on cover board 301-C there are four Oblong aperture is anchored in the back-off of the protrusion of shell 200-C and fixes, and four-way 209-A is screwed on the inside of cover board 301-C；

Air conduit 202-1 and microphone conduit 203-1, which merges into a single whole, is made into noodles formula flat, and one end is mounted on In soft set 276-C, soft set 276-C is inlaid on the outer periphery of shell 200-C；

One end of adjustable arm 200-B connection sealing ring 295-A is provided with lamelliform external gear 200-3, and is provided with down Button, is movably arranged in shell 200-C using back-off, and external gear 200-3 carries out leapfrog positioning by the claw 200-4 in shell, Gear 200-3 is positioned, that is, 355 ° of leapfrogs of adjustable arm 200-B is enable to rotate and position, adjustable arm 200-B is also acted as can The rear cover of sliding acts on；

Loudspeaker 207-2 and sound wave concentrator 205-2 are installed along in shell 204-A, and shell 204-A is provided with folder Sub- 200-D can be clipped on clothes using the clip 200-D, and shell 204-A installs air conduit 203-1 and air conduit The installation place of the 202-1 other end is equipped with soft set 276-D, and the shell 204-A other end is installed at metallic shield shielding wire Equipped with soft set 276-E；

One clip 200-D, the center installation bow arm 199-2 of clip 200-D, institute are installed on obedient device shell 204-A The bow arm 199-2 stated can 360 ° rotation, it cooperate adjustable arm 200-B rotation so that earphone left and right ear is ok It uses.

Embodiment 11

The four-way structure of Figure 27, Figure 28, Figure 29 of setting are replaced in Figure 25 the structure of four-way 209A and by shells by this example 200-C and the parts such as cover board 301-C and adjustable arm rear cover are sized to match with the size of the four-way after substitution.

Embodiment 12

Clip 200-D on obedient device shell 204-A is cancelled, while tack 211-1 being installed, remaining structure and implementation Structure described in example 11 is the same, and the shape of hook is as shown in figure 22.

Embodiment 13

This example is will to bend arm 199-2 cancellation, installs hook 211-1 in clip 200-E, remaining is as embodiment 11.

The invention also includes be arranged active noise reduction function to air conduit loudspeaker, in the environment of the sense of hearing outside loudspeaker Sound surface is provided with the noise in a mini microphone acquisition environment outward on shell, while collected noise being picked Dolby circuit, Dolby circuit design corresponding Dolby circuit using LM1894 or LM832 chip or in addition to carry out calculation process Afterwards, it is issued by air conduit loudspeaker with noise phase on the contrary, the identical sound wave of amplitude offsets noise, last ear is just It may feel that acoustic noise reducing or disappearance.Or the noise acquired on ear side with air conduit microphone picks noise reduction electricity Road, Dolby circuit design corresponding Dolby circuit using LM1894 or LM832 chip or in addition to pass through after carrying out calculation process Air conduit loudspeaker is issued with noise phase on the contrary, amplitude identical sound wave offsets noise, and effect is more preferable, the sky Small chamber Figure 30 below speaker housings is arranged, in 204-2 in small microphone in airway microphone.Front is already described using empty The vibrating diaphragm of airway microphone is close from mouth, has had reached the passive noise reduction of flexible material of active noise reduction and earpiece side, then In addition this technology is required to electronics active noise reduction, three's unification can reach ideal effect.

As shown in figure 30, the difference of the mounting means and Figure 21 of the small microphone 204-2 of the present embodiment is: described in filling The shell lower end of loudspeaker is provided with a small chamber, by the small chamber of the small microphone 204-2 installation speaker housings lower end It is interior.

It is noted that above embodiments are only used to, the present invention is described in further detail, is not to the present invention Claim be defined, in the case where not departing from spirit and design of the invention, those of ordinary skill in the art can To carry out various improvement or variation to the present invention, still fall within protection scope of the present invention.

Claims (12)

1. a kind of noise reduction radiation protection safety earphone characterized by comprising

Earphone heads, the inside of the earphone heads are formed with sound cavity, and the first end of the sound cavity has sound mouth；

Main body, the inside of the main body are equipped with earphone sound wave concentrator, offer passway on the earphone sound wave concentrator, institute Passway is stated to be connected to the second end of the sound cavity by earphone air conduit；

Loudspeaker, the earphone sound wave concentrator are arranged between the loudspeaker and the earphone air conduit；

The loudspeaker is connect with the first end for the conducting wire being located at outside main body, and the second end of the conducting wire is connected with plug；Loudspeaking The back side of device sets silencer；

And noise reduction air conduit microphone, the noise reduction air conduit microphone with impedance matching function,

Including vibrating diaphragm sound wave concentrator, vibrating membrane is equipped at the vibrating diaphragm sound wave concentrator big end, it is used for oscillation extraneous in capturing External sound wave signal is simultaneously amplified processing by acoustic signals, is then exported with acoustic signals to the small of vibrating diaphragm sound wave concentrator End, the small end of the vibrating diaphragm sound wave concentrator connect vibrating diaphragm air conduit, and the other end connection amplification mouth of vibrating diaphragm air conduit is small End amplifies the big end installation microphone of mouth for the acoustic signals of air conduit and is converted into audio electrical signal；

Described metallic shield isolation line front end be provided with for match the small microphone and voice terminal machine or communication equipment it Between impedance matching impedance transformer；

Noise reduction air conduit microphone applications include having threeway or five logical making to noise reduction wear-type anti-radiating earphone, in characteristic The connection of air conduit.

2. a kind of noise reduction radiation protection safety earphone according to claim 1, it is characterised in that: the output of the microphone End is connected with signal amplifier, which is set to the front end of the metallic shield shielding wire.

3. a kind of noise reduction radiation protection safety earphone according to claim 1, it is characterised in that: the vibrating membrane is mounted on sound The big end of wave concentrator, the outside of vibrating membrane add lid, and lid is equipped with multiple through-holes and fastens vibrating membrane in vibrating diaphragm sound The big end of wave concentrator, one end of the small end connection vibrating diaphragm air conduit of the vibrating diaphragm sound wave concentrator, vibrating diaphragm air conduit The other end connect another bell-mouthed small end, the bell-mouthed big end connects the small microphone, from the Mike Up to all sealings in junction in the periphery of lid, the small microphone is exposed at sound wave concentration in the called face of wind The jacketed sealing in surface except device, sound wave concentrator and bell-mouthed angle are 90 ° to 160 °.

4. a kind of noise reduction radiation protection safety earphone according to claim 1, characteristic are, will add before impedance transformer Amplifier.

5. noise reduction radiation protection safety earphone according to claim 3, it is characterised in that: the vibrating membrane is mounted on curved On the vibrating diaphragm sound wave concentrator of pipe, vibrating diaphragm sound wave concentrator is with being anchored in upper cover, and rear cover is also with being anchored to upper cover, band It is vibrating diaphragm air conduit in universal transfer arm that the lumen of the vibrating diaphragm sound wave concentrator of bend pipe, which is inserted into, and vibrating diaphragm air conduit is by turning It is connected to the various small microphones to be selected.

6. a kind of noise reduction radiation protection safety earphone according to claim 1, it is characterised in that: the noise reduction radiation protection safety Earphone be monophonic circuit ears wear-type, be provided with left ear listen cover, left ear shell, sound chamber containment, auris dextra listen cover, auris dextra shell, Headband, switch and switch housing, the universal transfer arm of noise reduction, noise reduction converter, shell, speaker housings, plug；

Further include having composite air conduit, big pipe, Yi Jiyong for connecting with loudspeaker pipeline are equipped in composite air conduit In the tubule connecting with microphone air conduit, earphone air conduit includes that the left ear of connection listens the auris dextra branch of cover sound cavity empty Airway and connection auris dextra listen the auris dextra branching air conduit of cover sound cavity, and the auris dextra branching air conduit, auris dextra branch are empty Airway is connected with the big pipe of composite air conduit by threeway；

Vibrating diaphragm air conduit from the universal transfer arm of noise reduction through left ear shell in, be connected to Hard link head；Hard link head it is another End is inserted into one end of the tubule of composite air conduit, the other end of the tubule of composite air conduit connect curved hard tube pass through every Lead to the small end that small hose is connected to vibrating diaphragm sound wave concentrator from plate,

Curved hard tube is directly merged into a single whole with threeway and is led to as five, bend pipe one end in merging and original connection type one The other end of sample, bend pipe is connect with sealing ring one end, and the other end of sealing ring is connect with the air conduit in universal transfer arm, and ten thousand The small end of air conduit and acoustic amplifier to the other end of transfer arm connects, and the big end installation vibrating diaphragm of sound wave concentrator connects It connects.

7. a kind of noise reduction radiation protection safety earphone according to claim 6, it is characterised in that: the composite air conduit Big pipe and tubule between be provided with for manage greatly sound is isolated between tubule air insulated chamber or the big pipe with It is connected between tubule by sheet connecting plate.

8. noise reduction radiation protection safety earphone according to claim 7, which is characterized in that the loudspeaker back side of earphone issued The noise elimination structure of sound is adapted cover point two layers of chamber containment of power of loudspeaker at the back side of loudspeaker with thinner thickness, and two layers Chamber has certain volume, and the thickness of cover is selected according to the size of loudspeaker, is screwed and is mounted on sound wave concentrator On periphery, or adhere to glue the periphery of sound wave concentrator；

Or the silencer that setting one has a resonant cavity, lead to several pipes in resonant cavity, is provided with that penetrate resonant cavity close on pipe The aperture of cloth, as soon as before two pipes merge into a tube head and be followed by carrying on the back the sound mouth of the latter cover in loudspeaker, It is to be connected in the outlet of one cover in periphery of sound wave concentrator big end, it is anti-to loudspeaker that this outlet is also equipped with thin film Water, behind rear one end of two pipes collect in the pipe for being connected to sound-absorbing material, eventually become gas outflow silencer, several Sound in pipe is just sent out from aperture to resonant cavity, is just generated and is resonated in resonant cavity, i.e. sound offsets each other sound, and reaches The purpose eliminated the noise is arrived.

9. noise reduction radiation protection safety earphone according to claim 1, which is characterized in that be provided with outside a microphone Waterproof and the water proof plastic foil for leading sound serve as a contrast waterproof, the out outlet of the operatic tunes, loudspeaker back in the periphery setting rubber of the button of switch The import of exit outside the logical machine in face both silencer.

10. noise reduction radiation protection safety earphone according to claim 1, it is characterised in that: air conduit loudspeaker is arranged Active noise reduction function, sound surface is provided with outward in a mini microphone acquisition environment in speaker cover in the environment of the sense of hearing Noise, while collected noise is picked into Dolby circuit, Dolby circuit is using LM1894 or LM832 chip or in addition sets Corresponding Dolby circuit is counted to issue with noise phase by air conduit loudspeaker on the contrary, amplitude is identical after carrying out calculation process Sound wave offset noise, or the noise acquired with air conduit microphone on ear side picks Dolby circuit, noise reduction Circuit designs corresponding Dolby circuit using LM1894 or LM832 chip or in addition to pass through air conduit after carrying out calculation process Loudspeaker is issued with noise phase on the contrary, amplitude identical sound wave offsets noise, small in the air conduit microphone Microphone is arranged small intracavitary below speaker housings.

11. noise reduction radiation protection safety earphone according to claim 1, it is characterised in that:

The earphone is noise reducing monaural anti-radiating earphone, fills the universal transfer arm of cage connection of the sound collector of vibrating membrane, The sound wave concentrator of sound collector connects one end of the air conduit in universal transfer arm, the air conduit in the universal transfer arm The other end connect adjustable arm, the adjustable arm other end is connected to one end of sealing ring, the other end of the sealing ring One end of four-way A pipe is connected, the other end of the four-way A pipe connects one end of small microphone conduit, is equipped with outside sealing ring Spring, spring one end abut against in one plane of inside of 306 ° of adjustable arm shells, and the other end is connect with sealing ring inner side plane, close On the outside of one end of the other end connection four-way of seal a plane against, the corresponding other end of four-way and small microphone conduit one End connection, the other end of small microphone conduit are connect with seat with the small microphone of sound wave concentrator, the small microphone It is connected to metallic shield shielding wire, is connected to connector；

Audio signal is connected to loudspeaker from connection-peg access metallic shield shielding wire, and the loudspeaker goes out the connection of sound face Sound wave concentrator, the small end of the sound wave concentrator connect air conduit, the other end and the four-way B pipe of the air conduit One end connection, the other end of the B pipe connect out the operatic tunes, and the operatic tunes that goes out is equipped with cover board, and the cover board goes out the operatic tunes Position is provided with multiple apertures, and the periphery of the cover board is equipped with cushion, opened on cover board there are four or several oblong apertures be anchored to shell Protrusion back-off on it is fixed, four-way is screwed on the inside of cover board；

Air conduit and small microphone conduit, which merge into a single whole, is made into noodles formula flat, or is made into other shapes of, one end peace In soft set, soft set is inlaid on the outer periphery of shell；

One end of adjustable arm connection sealing ring is provided with lamelliform external gear, and is provided with back-off, is installed using back-off activity Inside the shell, external gear carries out leapfrog positioning by the claw in shell, gear is positioned, that is, enable 355 ° of leapfrogs of adjustable arm It rotates and positions, adjustable arm also acts as slidable rear cover effect；

Loudspeaker and sound wave concentrator are installed along in shell.

12. noise reduction radiation protection safety earphone according to claim 11, it is characterised in that: install the outer of the loudspeaker Shell lower end is provided with a small chamber, and the small microphone is mounted on the small intracavitary of speaker housings lower end, installs loudspeaker The small chamber of chamber and speaker housings lower end between setting partition it is closed, only admittance pipe and conducting wire, blend compounds water seal.