CN107007393A - Air pressure self-balancing ear muffler and its control method - Google Patents
Air pressure self-balancing ear muffler and its control method Download PDFInfo
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- CN107007393A CN107007393A CN201710362097.4A CN201710362097A CN107007393A CN 107007393 A CN107007393 A CN 107007393A CN 201710362097 A CN201710362097 A CN 201710362097A CN 107007393 A CN107007393 A CN 107007393A
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- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000004891 communication Methods 0.000 claims description 23
- 210000003454 tympanic membrane Anatomy 0.000 abstract description 13
- 230000015572 biosynthetic process Effects 0.000 abstract description 3
- 210000005069 ears Anatomy 0.000 abstract description 3
- 230000001105 regulatory effect Effects 0.000 abstract description 2
- 101001010782 Drosophila melanogaster Fez family zinc finger protein erm Proteins 0.000 description 14
- 230000001276 controlling effect Effects 0.000 description 12
- 210000000959 ear middle Anatomy 0.000 description 5
- 210000002388 eustachian tube Anatomy 0.000 description 5
- 208000027418 Wounds and injury Diseases 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 210000003128 head Anatomy 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 210000004400 mucous membrane Anatomy 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 208000016952 Ear injury Diseases 0.000 description 1
- 206010014020 Ear pain Diseases 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 208000007176 earache Diseases 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001815 facial effect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 208000024891 symptom Diseases 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F11/00—Methods or devices for treatment of the ears or hearing sense; Non-electric hearing aids; Methods or devices for enabling ear patients to achieve auditory perception through physiological senses other than hearing sense; Protective devices for the ears, carried on the body or in the hand
- A61F11/06—Protective devices for the ears
- A61F11/14—Protective devices for the ears external, e.g. earcaps or earmuffs
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F11/00—Methods or devices for treatment of the ears or hearing sense; Non-electric hearing aids; Methods or devices for enabling ear patients to achieve auditory perception through physiological senses other than hearing sense; Protective devices for the ears, carried on the body or in the hand
- A61F11/06—Protective devices for the ears
- A61F11/14—Protective devices for the ears external, e.g. earcaps or earmuffs
- A61F11/145—Protective devices for the ears external, e.g. earcaps or earmuffs electric, e.g. for active noise reduction
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
- Acoustics & Sound (AREA)
- Biophysics (AREA)
- Otolaryngology (AREA)
- Psychology (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Headphones And Earphones (AREA)
Abstract
The present invention provides a kind of air pressure self-balancing ear muffler and its control method, and wherein air pressure self-balancing ear muffler includes two earmuffs and a framework, and two earmuffs are fixed on the both sides of framework, and earmuff one ear room of formation and an ear wear mouth；Also go out air pump, a power supply and two seals including a controller, two first baroceptors, an air intake pump, one；Controller connects the first baroceptor, air intake pump, goes out air pump and power supply, and air intake pump is respectively communicated with two ear rooms by two air inlet pipe, goes out air pump and is respectively communicated with two ear rooms by scene 2 tracheae；Two ears wear mouth and are respectively fixed with a seal；Two first baroceptors are individually fixed in an ear room.A kind of air pressure self-balancing ear muffler and its control method of the present invention, when it covers at ear's work, air pressure environment that can be inside automatic regulating apparatus so that the air pressure inside and outside user's eardrum keeps balance, has the advantages that good Consumer's Experience, simple operation and practical.
Description
Technical field
The present invention relates to ear protection device field, more particularly to a kind of air pressure self-balancing ear protection device field.
Background technology
Eustachian tube is the unique passage of UNICOM's nasopharyngeal cavity and tympanum in human body, and human body passes through Eustachian tube and adjusted in tympanum
Air pressure keeps balancing with ambient pressure, and it is also to adjust this unique channel.In extraneous change of atmospheric pressure, Eustachian tube is just
Gas can be controlled to flow into or from and then increasing or reduce intratympanic pressure makes it reach balance with the external world.But this process is
Slowly, when ambient pressure is increased with larger speed, for example：During airplane, gas during airplane in cabin
Press rate of change to be much larger than the adjustment speed of Eustachian tube, be adjusted to required for Eustachian tube with needed for extraneous identical atmospheric pressure when
Between atmospheric pressure identical much larger than extraneous change time, and atmospheric pressure extraneous within the same time is still constantly increasing, and leads
Cause external atmosphere pressure increasing with atmospheric pressure difference inside tympanum, cause to damage in tympanum.Aboard row process China and foreign countries
Boundary's pressure is less than interior boundary, and eardrum can outwards expand, and cause mucous membrane outwards to tear support, this is called for short " suction pressure wound ".And under aircraft
Ambient pressure is more than interior boundary during row, and eardrum can be absorbed in inwards, cause mucous membrane in tympanum inwardly to extrude, and this, which is called for short, " squeezes
Weigh wounded ".It is different according to constitution by bus, it is possible that ear is swollen, otalgia, dysaudia, energy do not collect medium；Seriously even
The illnesss such as the congested, perforation of eardrum can be caused；The experience of seizing the opportunity of influence passenger is even impacted to the healthy of passenger.Mesh
Before, passenger typically slows down the symptom of discomfort by wearing earplug, but its effect is limited.
The content of the invention
For above-mentioned deficiency of the prior art, the present invention provides a kind of air pressure self-balancing ear muffler and its control method,
When it covers at ear's work, air pressure environment that can be inside automatic regulating apparatus so that the air pressure inside and outside user's eardrum is protected
Maintain an equal level weighing apparatus so that user can possess preferable usage experience.
To achieve these goals, the present invention provides a kind of air pressure self-balancing ear muffler, including two earmuffs and a framework, two
The earmuff is fixed on the both sides of the framework, and the earmuff one ear room of formation and an ear wear mouth；Also include a controller,
Two first baroceptors, an air intake pump, one go out air pump, a power supply and two seals；The controller connects first gas
Pressure sensor, the air intake pump, it is described go out air pump and the power supply, the air intake pump is respectively communicated with described in two by two air inlet pipe
Ear room, it is described go out air pump ear room described in two is respectively communicated with by scene 2 tracheae；Ear described in two wears mouth and is respectively fixed with an institute
State seal；First baroceptor described in two is individually fixed in described in one in ear room.
Preferably, in addition to a wireless communication module, the wireless communication module is communicated to connect with the controller.
Preferably, in addition to an external control terminal, the external control terminal and the wireless communication module communication link
Connect.
Preferably, in addition to a controlling switch component, the controlling switch component is fixed on the framework or the earmuff
And communicated to connect with the controller.
Preferably, in addition to one second baroceptor, second baroceptor is communicated to connect with the controller
And outside the ear room.
Preferably, an audio playing module and two-loudspeaker for the connection controller, loudspeaker described in two point are included
It is not fixed in the ear room, the audio playing module is connected with the loud speaker signalling.
Preferably, a noise control sound-absorbing layer is provided with the earmuff.
Preferably, in addition to a display screen, the display screen is fixed on the framework and communicated to connect with the controller.
A kind of control method based on air pressure self-balancing ear muffler of the present invention of the present invention, including step：
S1：The controller controls first baroceptor to obtain an air pressure initial value, and according to the air pressure initial value
Set an ear room air pressure range；Or default ear room air pressure range；
S2：The controller controls first baroceptor to obtain a current gas pressure value in real time；
S3：Analyze the relation of the current gas pressure value and ear room air pressure range；Current gas pressure value is less than institute as described
The minimum value of ear room air pressure range is stated, the controller controls the air intake pump to ear room pump gas, until current gas pressure value
Rise in the air pressure range of the ear room；Current gas pressure value is more than the maximum of ear room air pressure range, the control as described
Go out air pump from the outside pump gas in ear room described in device control, until current gas pressure value is down in the air pressure range of the ear room；As institute
Current gas pressure value is stated in the air pressure range of the ear room, continues subsequent step；
S4：One shutdown command is sent to the controller by the controlling switch component；
S5：The controller is detected according to the shutdown command, the current gas pressure value and second baroceptor
The ambient pressure value obtained, control the air intake pump or it is described go out air pump will according to a pre-set velocity by the current gas pressure value
The current gas pressure value is slowly adjusted to the ambient pressure value；
S6：The controller is played by the audio playing module can extract the prompt message of the earmuff；
S7：Close the power supply.
Preferably, step is also included before S4 steps：
One media link order is sent to the controller by the controlling switch component or the external control terminal；
The controller connects an external media devices according to the media link order by the wireless communication module；
The controller receives the media signal of the external media devices and controls the audio playing module to be broadcast
Put；
The external media devices and the control are disconnected by the controlling switch component or the external control terminal
The connection of device.
The present invention makes it have following beneficial effect as a result of above technical scheme：
1st, ear room, controller, the first baroceptor, air intake pump and the cooperation for going out air pump, work as ear room pressure to realize
With the air pressure of adjust automatically ear room when air pressure difference is larger in eardrum to preset security air pressure range so that two inside and outside user's eardrum
The air pressure of side keeps balance, it is ensured that ear of the user when ambient pressure transformation is larger is comfortable and safe.
2nd, seal causes ear room to have preferable sealing.
3rd, realize can be by external control terminal to controller for the cooperation of external control terminal and wireless communication module
Controlled in wireless so that the use of user is more convenient, improves the usage experience of user.
4th, controlling switch component is used to provide the user with the manual control to each function of device so that the use of user is more
It is convenient.
5th, the second baroceptor is used to measure ambient pressure value, automatically slowly adjusts ear room pressure during earmuff to remove
Section to ambient pressure value provides basis, the injury for preventing ambient pressure from being caused to eardrum.
6th, the use of audio playing module and loudspeaker, realizes the media play work(of air pressure self-balancing ear muffler of the present invention
Can so that media entertainment can be carried out when user wears, improve user experience.
7th, the use of noise control sound-absorbing layer so that ear room possesses more preferable soundproof effect, lifting user listening when playing media
Feel experience.
8th, display screen is used for the function information and/or status information for showing air pressure self-balancing ear muffler.
Brief description of the drawings
Fig. 1 is the external structure schematic diagram of the air pressure self-balancing ear muffler of the embodiment of the present invention；
Fig. 2 is the internal structure schematic diagram of the air pressure self-balancing ear muffler of the embodiment of the present invention；
Fig. 3 is the flow chart of the control method of the embodiment of the present invention.
Embodiment
Below according to 1~Fig. 3 of accompanying drawing, presently preferred embodiments of the present invention is provided, and is described in detail, is enabled more preferably geographical
Solve function, the feature of the present invention.
Fig. 1 and Fig. 2 are referred to, the present invention of the embodiment of the present invention provides a kind of air pressure self-balancing ear muffler, including two ears
The framework 2 of cover 1 and one, two earmuffs 1 are fixed on the both sides of framework 2, and each one ear room 101 of formation of earmuff 1 and an ear wear mouth
102；Also include a controller 3, two first baroceptors 4, an air intake pump 5, one and go out air pump 6, two seals 7 and a power supply 8；
The connection of controller 3 first baroceptor 4, air intake pump 5, go out air pump 6 and power supply 8, air intake pump 5 by two air inlet pipe (in figure not
Show) two ear rooms 101 are respectively communicated with, go out air pump 6 and be respectively communicated with two ear rooms 101 by two escape pipe (not shown)；Two ears wear
Wear mouth 102 and be respectively fixed with a seal 7；Two first baroceptors 4 are individually fixed in an ear room 101.
In the present embodiment, controller 3 can use any existing control mould such as single-chip microcomputer, microduino modules as needed
Block.The settable USB module being connected with controller 3 of the present embodiment, USB module can be used for the exterior terminals such as connection computer.Power supply 8
Battery can be used.
Ear room 101, controller 3, the first baroceptor 4, air intake pump 5 and the cooperation for going out air pump 6, work as ear room to realize
The air pressure of adjust automatically ear room 101 is to preset security air pressure range when air pressure difference is larger in air pressure and eardrum in 101 so that use
Air pressure inside and outside the eardrum of family keeps balance, it is ensured that ear of the user when ambient pressure transformation is larger is comfortable and safe.It is close
Sealing 7 can be flexible using silica gel etc. and has the material of certain adsorption capacity so that user is worn after air pressure self-balancing ear muffler,
Earmuff 1 and user's facial skin are brought into close contact so that ear room 101 has preferable sealing, so as to significantly reduce and slow down
Influence of the ambient pressure to the air pressure inside of ear room 101, so as to reduce the frequency of device air pressure inside regulation, saves and extends
The service life of device.
Also include a wireless communication module 9 and an external control terminal 11, wireless communication module 9 and the communication link of controller 3
Connect.External control terminal 11 is communicated to connect with wireless communication module 9, and passes through wireless communication module 9 and the communication link of controller 3
Connect.
Wireless communication module 9 is used for and external device communication, and controller 3 can connect outside matchmaker by wireless communication module 9
Body equipment and/or external control terminal 11.The cooperation of external control terminal 11 and wireless communication module 9 is realized, can be by outer
Controlled in wireless of the portion's control terminal 11 to controller 3 so that the use of user is more convenient, improves the usage experience of user.Outside
Portion's control terminal 11 can have the equipment of radio communication function using mobile phone, tablet personal computer etc..In other embodiments, also can root
According to needing not use wireless communication module 9 and external control terminal 11, and media connection serial ports is configured in addition, can directly pass through
Media connection serial ports connection external media devices.
Also include a controlling switch component 12, controlling switch component 12 is fixed on framework 2 or earmuff 1 and logical with controller 3
Letter connection.Controlling switch component 12 is used to provide the user with the manual control to each function of device so that the use of user is more
It is convenient.
Also include one second baroceptor 13, the second baroceptor 13 is communicated to connect with controller 3 and positioned at ear room
Outside 101.Second baroceptor 13 is used to measure ambient pressure value, automatic that air pressure in ear room 101 is slow during earmuff 1 to remove
Regulation to ambient pressure value provides basis, so as to prevent user from being removed suddenly in the environment larger with eardrum air pressure inside difference
Earmuff 1, the injury that ambient pressure is caused to eardrum.
Also include an audio playing module 15 and two-loudspeaker 16 for connection controller 3, two-loudspeaker 16 is individually fixed in
In ear room 101, audio playing module 15 is communicated to connect with loudspeaker 16.
The use of audio playing module 15 and loudspeaker 16, realizes the media play of air pressure self-balancing ear muffler of the present invention
Function so that media entertainment can be carried out when user wears, improves user experience.
A noise control sound-absorbing layer 17 is provided with earmuff 1.The use of noise control sound-absorbing layer 17 so that ear room 101 possesses more preferable sound insulation
Effect, audio experience of the lifting user when playing media.
Also include a display screen 14, display screen 14 is fixed on framework 2 and communicated to connect with controller 3.Display screen 14 is used for
Show the function information and/or status information of air pressure self-balancing ear muffler.
In other embodiments, air pressure self-balancing ear muffler also includes a head mount, and head mount can use neck
The fixed components such as portion's fixing band, prevent ear muff 1 from departing from ear accidentally in working condition, so as to cause ambient pressure to ear
Injury, further enhances the security of air pressure self-balancing ear muffler.
Refer to Fig. 1~Fig. 3, a kind of control method based on air pressure self-balancing ear muffler of the invention of the invention, bag
Include step：
S1：Controller 3 controls the first baroceptor 4 to obtain an air pressure initial value, and according to the ear room of air pressure initial value design one
Air pressure range；Or default ear room air pressure range；The ear room air pressure range is the pressure range that common people's eardrum can be born,
± 10% of air pressure initial value etc. is such as may be set to, concrete numerical value can do adaptation adjustment as needed.
S2：First baroceptor of the control of controller 34 obtains a current gas pressure value in real time；
S3：Analyze the relation of current gas pressure value and ear room air pressure range；As current gas pressure value is less than ear room air pressure range
Minimum value, controller 3 controls air intake pump 5 to the pump gas of ear room 101, until current gas pressure value is risen in the air pressure range of ear room；As worked as
Preceding atmospheric pressure value is more than the maximum of ear room air pressure range, and controller 3 controls out air pump 6 from the outside pump gas in ear room 101, until current
Atmospheric pressure value is down in the air pressure range of ear room；Such as current gas pressure value continues subsequent step in the air pressure range of ear room；
S4：One shutdown command is sent to controller 3 by controlling switch component 12；
S5：Controller 3 detects the extraneous gas of one obtained according to shutdown command, current gas pressure value and the second baroceptor 13
Pressure value, control air intake pump 5 or go out air pump 6 by current gas pressure value according to a pre-set velocity by current gas pressure value slowly regulation to the external world
Atmospheric pressure value；
S6：Controller 3 is played by audio playing module 15 can extract the prompt message of earmuff 1；
S7：Close power supply 8.
Also include step before S4 steps：
One media link order is sent to controller 3 by controlling switch component 12 or external control terminal 11；
Controller 3 connects an external media devices according to media link order by wireless communication module 9；
Controller 3 receives the media signal of external media devices and controls audio playing module 15 to play out；
The connection of external media devices and controller 3 is disconnected by controlling switch component 12 or external control terminal 11.
The present invention is described in detail above in association with accompanying drawing embodiment, those skilled in the art can be according to upper
State it is bright the present invention is made many variations example.Thus, some of embodiment details should not constitute limitation of the invention, this
Invention regard the scope defined using appended claims as protection scope of the present invention.
Claims (10)
1. a kind of air pressure self-balancing ear muffler, including two earmuffs (1) and a framework (2), earmuff described in two (1) are fixed on the frame
The both sides of frame (2), the earmuff (1) forms an ear room (101) and an ear wears mouth (102)；Characterized in that, also including one
Controller (3), two first baroceptors (4), an air intake pump (5), one go out air pump (6), a power supply (8) and two seals (7)；
The controller (3) connect first baroceptor (4), the air intake pump (5), it is described go out air pump (6) and the power supply
(8), the air intake pump (5) is respectively communicated with ear room (101) described in two by two air inlet pipe, it is described go out air pump (6) pass through two outlets
Pipe is respectively communicated with ear room (101) described in two；Ear described in two wears mouth (102) and is respectively fixed with seal described in one (7)；Two institutes
The first baroceptor (4) is stated to be individually fixed in ear room (101) described in one.
2. air pressure self-balancing ear muffler according to claim 1, it is characterised in that also including a wireless communication module (9),
The wireless communication module (9) communicates to connect with the controller (3).
3. air pressure self-balancing ear muffler according to claim 2, it is characterised in that also including an external control terminal
(11), the external control terminal (11) communicates to connect with the wireless communication module (9).
4. air pressure self-balancing ear muffler according to claim 3, it is characterised in that also including a controlling switch component
(12), the controlling switch component (12) is fixed on the framework (2) or the earmuff (1) and communicated with the controller (3)
Connection.
5. air pressure self-balancing ear muffler according to claim 4, it is characterised in that also including one second baroceptor
(13), second baroceptor (13) communicates to connect with the controller (3) and is located at the ear room (101) outside.
6. air pressure self-balancing ear muffler according to claim 5, it is characterised in that also including connecting the controller (3)
An audio playing module (15) and two-loudspeaker (16), loudspeaker described in two (16) is individually fixed in the ear room (101),
The audio playing module (15) communicates to connect with the loudspeaker (16).
7. the air pressure self-balancing ear muffler according to any one of claim 1~6, it is characterised in that set in the earmuff (1)
It is equipped with a noise control sound-absorbing layer (17).
8. the air pressure self-balancing ear muffler according to any one of claim 1~6, it is characterised in that also including a display screen
(14), the display screen (14) is fixed on the framework (2) and communicated to connect with the controller (3).
9. a kind of control method of the air pressure self-balancing ear muffler based on described in claim 6, including step：
S1：The controller (3) controls first baroceptor (4) to obtain an air pressure initial value, and according at the beginning of the air pressure
Value one ear room air pressure range of setting；Or default ear room air pressure range；
S2：The controller (3) controls first baroceptor (4) to obtain a current gas pressure value in real time；
S3：Analyze the relation of the current gas pressure value and ear room air pressure range；Current gas pressure value is less than the ear as described
The minimum value of room air pressure range, the controller (3) controls the air intake pump (5) to ear room (101) pump gas, until current
Atmospheric pressure value is risen in the air pressure range of the ear room；Current gas pressure value is more than the maximum of ear room air pressure range, institute as described
State and go out air pump (6) described in controller (3) control from the outside pump gas of the ear room (101), until current gas pressure value is down to the ear
In the air pressure range of room；Current gas pressure value continues subsequent step in the air pressure range of the ear room as described；
S4：One shutdown command is sent to the controller (3) by the controlling switch component (12)；
S5：The controller (3) is examined according to the shutdown command, the current gas pressure value and second baroceptor (13)
Survey the ambient pressure value obtained, control the air intake pump (5) or it is described go out air pump (6) the current gas pressure value is pre- according to one
If speed slowly adjusts the current gas pressure value to the ambient pressure value；
S6：The controller (3) is played by the audio playing module (15) can extract the prompt message of the earmuff (1)；
S7：Close the power supply (8).
10. control method according to claim 9, it is characterised in that also include step before S4 steps：
A media are sent by the controlling switch component (12) or the external control terminal (11) to the controller (3) to connect
Connect instruction；
The controller (3) connects a foreign medium by the wireless communication module (9) according to the media link order and set
It is standby；
The controller (3) receives the media signal of the external media devices and controls the audio playing module (15) to carry out
Play；
The external media devices are disconnected and described by the controlling switch component (12) or the external control terminal (11)
The connection of controller (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710362097.4A CN107007393A (en) | 2017-05-22 | 2017-05-22 | Air pressure self-balancing ear muffler and its control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710362097.4A CN107007393A (en) | 2017-05-22 | 2017-05-22 | Air pressure self-balancing ear muffler and its control method |
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| Publication Number | Publication Date |
|---|---|
| CN107007393A true CN107007393A (en) | 2017-08-04 |
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ID=59450004
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710362097.4A Pending CN107007393A (en) | 2017-05-22 | 2017-05-22 | Air pressure self-balancing ear muffler and its control method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107714047A (en) * | 2017-11-03 | 2018-02-23 | 佛山博智医疗科技有限公司 | Stent-type sound insulation listening device |
| JP2019055069A (en) * | 2017-09-21 | 2019-04-11 | 京セラ株式会社 | Air pressure adjusting device, air pressure adjustment method, and air pressure adjustment program |
| CN113541715A (en) * | 2021-07-12 | 2021-10-22 | 江西联创电声有限公司 | Communication type helmet with physiological detection function |
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Application publication date: 20170804 |