CN216122814U - Air conduction noise reduction earphone - Google Patents
Air conduction noise reduction earphone Download PDFInfo
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- CN216122814U CN216122814U CN202121789132.9U CN202121789132U CN216122814U CN 216122814 U CN216122814 U CN 216122814U CN 202121789132 U CN202121789132 U CN 202121789132U CN 216122814 U CN216122814 U CN 216122814U
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- rear cover
- earmuff
- noise
- air compression
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Abstract
The utility model relates to an air-guide noise reduction earphone which comprises an earmuff rear cover, an earmuff front cover, a noise reduction assembly and an audio signal collection assembly, wherein the noise reduction assembly comprises rear cover anti-noise foam and front cavity anti-noise foam; the front cavity anti-noise foam is hollowed in the middle to form a conduction cavity, the audio signal collecting assembly is arranged corresponding to the conduction cavity and comprises an air compression rear cover and an air compression front cover which are mutually buckled, and a vibrating membrane is arranged in a space formed between the air compression rear cover and the air compression front cover; cover after the air compression and install hollow tracheal nozzle, tracheal nozzle one end stretches out outside the ear muff backshell, and the other end links to each other with the air compression back lid and communicates with vibrating diaphragm place cavity. The rear cover of the earmuff and the front cover of the earmuff are buckled for use to form a closed space for blocking external interference noise signals, so that the noise interference is avoided in the process of transmitting the audio signals introduced through the air nozzle, and the sound is conveniently and accurately restored.
Description
Technical Field
The utility model relates to the technical field of earphones, in particular to an air conduction noise reduction earphone.
Background
In the case of a person who works for a long time in a loud noise environment or a place where equipment generates loud noise and loud sound pressure, the ears of the person are susceptible to noise to cause health problems, and a noise reduction earphone or a sound insulation earphone should be used for isolating external noise.
At present, in the industry, a single noise reduction function earphone is generally used for sound insulation, and although a certain noise can be isolated by the single sound insulation effect earphone, information which needs to be received by a person is also isolated, so that communication sound transmission equipment, such as the communication sound transmission earphone, needs to be adopted when the person needs to receive the information. However, many of the parts of such conventional earphones include metal parts, such as fixing screws and metal joints, which are liable to affect the interpretation function of the special equipment. Taking the high-emission sampling electric field as an example, if a metal substance exists in the surrounding environment, it is difficult to achieve the condition of transmitting the acoustic frequency in the high-emission sampling electric field, which affects the sound transmission.
SUMMERY OF THE UTILITY MODEL
The applicant aims at the defects in the prior art, and provides an air conduction noise reduction earphone with a reasonable structure, which is suitable for a high-noise environment, can block external noise, and can collect external communication signals through a built-in device for receiving a contact signal source to protect the hearing health of a user; and the earphone does not contain metal material parts, thereby ensuring the accuracy of equipment data interpretation.
The technical scheme adopted by the utility model is as follows:
an air conduction noise reduction earphone comprises a head band and earmuff components positioned at two ends of the head band, wherein each earmuff component comprises an earmuff rear cover and an earmuff front cover, the earmuff rear cover and the earmuff front cover are buckled to form a cavity, a noise reduction component and an audio signal collection component are arranged in the cavity,
the noise reduction assembly comprises rear cover anti-noise foam attached to the inner wall of the rear cover of the earmuff and front cavity anti-noise foam attached to the inner wall of the front cover of the earmuff; the front cavity anti-noise foam is hollowed in the middle to form a conduction cavity,
the audio signal collecting assembly is arranged corresponding to the conduction cavity and comprises an air compression rear cover and an air compression front cover which are mutually buckled, and a vibrating membrane is arranged in a space formed between the air compression rear cover and the air compression front cover; cover after the air compression and install hollow tracheal nozzle, tracheal nozzle one end stretches out outside the ear muff backshell, and the other end links to each other with the air compression back lid and communicates with vibrating diaphragm place cavity.
As a further improvement of the above technical solution:
the air compression rear cover is extended with a conduit, and the air pipe nozzle is embedded into the conduit in an interference manner.
The outer circle surface of the air pipe nozzle is led out with a buckling position, the buckling position extends towards one side of the air compression rear cover in an inclined mode, and an acute angle included angle between the buckling position and the central axis of the air pipe nozzle is arranged.
The inner wall of one side of the air compression front cover facing the air compression rear cover is provided with a film groove, and the vibrating film is embedded into the film groove.
And a straight line where the connecting line of the middle points of the vibrating membranes is positioned is arranged in a collinear way with the central axis of the air nozzle.
The middle of the earmuff front cover is hollowed out, and the profile of the front cavity anti-noise foam is matched with the profile of the earmuff front cover.
The thickness of the front cavity anti-noise foam is larger than that of the earcap front cover.
The vibration film is arranged in a linear array mode, and the vibration film is a PU/PEN/PET integrated sound film.
One side of the earmuff front cover, which is far away from the earmuff rear cover, is adhered with ear protection foam.
The earcap rear cover is provided with a mounting hole, and a rotary buckle is connected between the mounting hole and the head band; the mounting hole is filled with an I-shaped sealing element.
The utility model has the following beneficial effects:
the rear cover of the earmuff and the front cover of the earmuff are buckled for use to form a closed space for blocking external interference noise signals, so that the noise interference is avoided in the process of transmitting the audio signals introduced through the air nozzle, and the sound is conveniently and accurately restored.
The lid is covered behind the earmuff to the cotton back cover of resisting noise, and the cotton ability effective separation of resisting noise bubble shakes abnormal sound and resonance, combines with the earmuff back cover, makes the reflection sound and the echo that the earmuff back cover space gap department formed, gains noise reduction and two-way effect of moving away to avoid possible earthquakes.
The audio signal collection assembly works on the principle that: the signal of telecommunication of external power amplifier output, the sound wave signal of seeing off via the pronunciation ware, the audio frequency air current signal input trachea mouth that is promoted by air conduit get into the chamber of audio signal collection subassembly through the trachea mouth in, promote the vibrating diaphragm, the conduction audio signal lets the user receive clear sound.
The front cavity anti-noise foam in the utility model has the combined action with the earmuff front cover, has the same action with the rear cover anti-noise foam, is respectively constructed with the earmuff front cover and the earmuff rear cover to form the passive anti-noise earphone, the anti-noise effect can reach 30dB level, the standard blocks the interference and insulates sound, reduces the noise, screens the external noise interference, and leads the audio signal transmitted by the external air duct to be clearly received by the receiver and the receiver to more clearly return the sound source.
The ear protection foam cotton not only improves the comfort level, but also mainly reduces the gap condition caused by insufficient fit between the front cover of the earmuff and the ears of a person, thereby achieving the effects of sealing and preventing noise and noise from interfering listening.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is an exploded view of the earshell assembly of the present invention.
Fig. 3 is an exploded view of the audio signal collection assembly of the present invention.
Wherein: 1. a headband; 2. an earshell assembly; 3. a noise reduction assembly; 4. an audio signal collection component; 5. ear protection foam; 6. mounting holes; 7. rotating the buckle; 8. a seal member;
201. an earmuff rear cover; 202. an earmuff front cover;
301. the back cover is made of anti-noise foam; 302. the front cavity is made of anti-noise foam;
401. a rear cover for air compression; 402. an air compression front cover; 403. a vibrating membrane; 404. a gas nozzle; 405. a conduit; 406. buckling; 407. and (4) a film groove.
Detailed Description
The following describes embodiments of the present invention with reference to the drawings.
As shown in fig. 1, the air conduction noise reduction earphone of the present embodiment comprises a head band 1, and ear shell assemblies 2 located at two ends of the head band 1, each ear shell assembly 2 comprises an ear shell back cover 201 and an ear shell front cover 202, the ear shell back cover 201 and the ear shell front cover 202 are fastened to form a chamber, a noise reduction assembly 3 and an audio signal collection assembly 4 are installed in the chamber,
the noise reduction component 3 comprises rear cover anti-noise foam 301 attached to the inner wall of the rear cover 201 of the earmuff and front cavity anti-noise foam 302 attached to the inner wall of the front cover 202 of the earmuff; the front cavity anti-noise foam 302 is hollowed out to form a conduction cavity,
the audio signal collecting assembly 4 is arranged corresponding to the conduction cavity and comprises an air compression rear cover 401 and an air compression front cover 402 which are mutually buckled, and a vibrating membrane 403 is arranged in a space formed between the air compression rear cover 401 and the air compression front cover 402; the air compression rear cover 401 is provided with a hollow air nozzle 404, one end of the air nozzle 404 extends out of the earmuff rear shell, and the other end of the air nozzle is connected with the air compression rear cover 401 and communicated with the cavity where the vibrating membrane 403 is located.
The air compression rear cover 401 is extended with a guide tube 405, and the air nozzle 404 is embedded in the guide tube 405 in a clearance way.
A buckling position 406 is led out from the outer circle surface of the air nozzle 404, the buckling position 406 obliquely extends out towards one side of the air compression rear cover 401, and an acute angle is formed between the buckling position 406 and the central axis of the air nozzle 404.
A film groove 407 is formed in the inner wall of the air compression front cover 402 facing the air compression rear cover 401, and the diaphragm 403 is fitted into the film groove 407.
The straight line of the connecting line of the middle points of the vibrating membranes 403 is arranged in the same line with the central axis of the air nozzle 404.
The middle of the earmuff front cover is hollowed out, and the outline of the front cavity anti-noise foam 302 is matched with the outline of the earmuff front cover.
The thickness of the front cavity anti-noise foam 302 is larger than that of the front cover of the earcap.
The vibration film 403 is arranged in a linear array, and the vibration film 403 adopts a PU/PEN/PET integral forming sound film.
The side of the earmuff front cover 202, which faces away from the earmuff rear cover 201, is attached with ear protection foam 5.
The rear cover of the earcap is provided with a mounting hole 6, and a rotary buckle 7 is connected between the mounting hole 6 and the head band 1; the mounting hole 6 is filled with an I-shaped sealing element 8.
The specific structure and working process of the embodiment are as follows:
as shown in fig. 1, which is an overall structure diagram of the earphone of the present invention, in combination with the exploded diagram of fig. 2, the front cavity anti-noise foam 302, the ear protection foam 5, and the corresponding ear shield front cover 202 are all hollow structures, and after the installation is completed, the sound collected by the audio signal collection assembly 4 is transmitted to the ear of the person from the hollow position.
As shown in fig. 2, the earmuff rear cover 201 and the earmuff front cover 202 are mutually buckled to form a chamber, fig. 2 is a schematic diagram of the rear cover 201 and the earmuff front cover 202 after being exploded, and from the earmuff rear cover 201, the direction of the front cover 202 is pointed, and the following are performed in sequence: the back cover anti-noise foam 301, the audio signal collecting component 4 positioned between the back cover anti-noise foam 301 and the front cavity anti-noise foam 302, and the front cavity anti-noise foam 302. The middle of the front-cavity anti-noise foam 302 is hollowed, the edge position is covered by the annular earmuff front cover 202, ear protection foam 5 is adhered to one surface of the earmuff front cover 202, which is contacted with ears, the inner walls of the ear protection foam 5, the earmuff front cover 202 and the front-cavity anti-noise foam 302 tend to be arranged in a coplanar manner, and sound transmitted by the audio signal collecting component 4 can be directly transmitted to ears of people.
The audio signal collecting assembly 4, referring to fig. 2 and 3, includes an air compression front cover 402 and an air compression rear cover 401 which are snap-fitted to each other. The air compression rear cover 401 is in a container shape, the air compression front cover 402 is in a plate shape, a cavity is reserved in the middle after the air compression rear cover 401 and the air compression front cover 402 are buckled, three linear array membrane grooves 407 are dug in the inner wall of the air compression front cover 402, and a piece of vibration membrane 403 is correspondingly adhered in each membrane groove 407. A section of conduit 405 extends from the bottom of the air compression rear cover 401; a through hole is provided in the end of the rear cover 201 facing away from the headband 1, through which the air nozzle 404 connected to the duct 405 protrudes or is received. One end of the air nozzle 404 connected with the guide tube 405 extends into the guide tube 405, the other end of the air nozzle 404 is in a round table shape, and two buckling positions 406 are arranged in the middle of the air nozzle 404 and used for assisting clamping.
When the ear protection device is used, the ear protection foam 5 wraps the ears of a person to play a role in protecting and isolating external noise; the audio signal to be transmitted to the user is introduced from the air nozzle 404, transmitted to the chamber of the audio signal collecting unit 4, and transmitted to the worker through the vibration of the diaphragm 403. In the process, the rear cover anti-noise foam 301 and the front cavity anti-noise foam 302 play a role in assisting sound insulation.
The passive anti-noise earphone can be formed, the anti-noise effect can reach the 30dB level, and the effect of accurately transmitting the specified audio signal is achieved while sound insulation is effectively achieved.
The above description is intended to illustrate the present invention and not to limit the present invention, which is defined by the scope of the claims, and may be modified in any manner within the scope of the present invention.
Claims (10)
1. The utility model provides an empty earphone of making an uproar that falls that leads, includes bandeau (1), is located conch subassembly (2) at bandeau (1) both ends, its characterized in that: each ear shell component (2) comprises an ear shell rear cover (201) and an ear shell front cover (202), the ear shell rear cover (201) and the ear shell front cover (202) are buckled to form a chamber, a noise reduction component (3) and an audio signal collection component (4) are arranged in the chamber,
the noise reduction assembly (3) comprises rear cover anti-noise foam (301) attached to the inner wall of the rear cover (201) of the earmuff and front cavity anti-noise foam (302) attached to the inner wall of the front cover (202) of the earmuff; the front cavity anti-noise foam (302) is hollowed in the middle to form a conduction cavity,
the audio signal collecting assembly (4) is arranged corresponding to the conduction cavity and comprises an air compression rear cover (401) and an air compression front cover (402) which are buckled with each other, and a vibrating membrane (403) is arranged in a space formed between the air compression rear cover (401) and the air compression front cover (402); the air compression rear cover (401) is provided with a hollow air pipe nozzle (404), one end of the air pipe nozzle (404) extends out of the earmuff rear shell, and the other end of the air pipe nozzle is connected with the air compression rear cover (401) and is communicated with a cavity where the vibrating membrane (403) is located.
2. An air conduction noise reducing earphone as claimed in claim 1, wherein: a guide pipe (405) extends from the air compression rear cover (401), and the air nozzle (404) is embedded into the guide pipe (405) in a clearance mode.
3. An air conduction noise reducing earphone as claimed in claim 2, wherein: a buckling position (406) is led out of the outer circle surface of the air nozzle (404), the buckling position (406) extends out in an inclined mode towards one side, away from the air compression rear cover (401), and an acute included angle is formed between the buckling position (406) and the central axis of the air nozzle (404).
4. An air conduction noise reducing earphone as claimed in claim 1, wherein: and a membrane groove (407) is formed in the inner wall of one side, facing the air compression rear cover (401), of the air compression front cover (402), and the vibrating membrane (403) is embedded into the membrane groove (407).
5. An air conduction noise reducing earphone as claimed in claim 4, wherein: the straight line where the connecting line of the middle points of the vibrating membranes (403) is located is arranged in a collinear way with the central axis of the air nozzle (404).
6. An air conduction noise reducing earphone as claimed in claim 1, wherein: the middle of the earmuff front cover (202) is hollowed, and the profile of the front cavity anti-noise foam (302) is matched with the profile of the earmuff front cover.
7. An air conduction noise reducing earphone as claimed in claim 6, wherein: the thickness of the front cavity anti-noise foam (302) is larger than that of the earcap front cover.
8. An air conduction noise reducing earphone as claimed in claim 1, wherein: the vibrating membranes (403) are arranged in a linear array mode, and the vibrating membranes (403) are integrally formed by PU/PEN/PET sound membranes.
9. An air conduction noise reducing earphone as claimed in claim 1, wherein: ear protection foam (5) are attached to one side of the earmuff front cover (202) departing from the earmuff rear cover (201).
10. An air conduction noise reducing earphone as claimed in claim 1, wherein: the earmuff rear cover (201) is provided with a mounting hole (6), and a rotary buckle (7) is connected between the mounting hole (6) and the head band (1); the mounting hole (6) is filled with an I-shaped sealing element (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121789132.9U CN216122814U (en) | 2021-08-02 | 2021-08-02 | Air conduction noise reduction earphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121789132.9U CN216122814U (en) | 2021-08-02 | 2021-08-02 | Air conduction noise reduction earphone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216122814U true CN216122814U (en) | 2022-03-22 |
Family
ID=80724275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121789132.9U Active CN216122814U (en) | 2021-08-02 | 2021-08-02 | Air conduction noise reduction earphone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216122814U (en) |
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2021
- 2021-08-02 CN CN202121789132.9U patent/CN216122814U/en active Active
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