CN108289260A - Electromechanical integration acoustic-electric shields earmuff - Google Patents
Electromechanical integration acoustic-electric shields earmuff Download PDFInfo
- Publication number
- CN108289260A CN108289260A CN201810271998.7A CN201810271998A CN108289260A CN 108289260 A CN108289260 A CN 108289260A CN 201810271998 A CN201810271998 A CN 201810271998A CN 108289260 A CN108289260 A CN 108289260A
- Authority
- CN
- China
- Prior art keywords
- cover body
- material layer
- earmuff
- electromechanical integration
- sound
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
- H04R1/1008—Earpieces of the supra-aural or circum-aural type
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/12—Audiometering
- A61B5/121—Audiometering evaluating hearing capacity
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
- H04R1/1083—Reduction of ambient noise
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2460/00—Details of hearing devices, i.e. of ear- or headphones covered by H04R1/10 or H04R5/033 but not provided for in any of their subgroups, or of hearing aids covered by H04R25/00 but not provided for in any of its subgroups
- H04R2460/01—Hearing devices using active noise cancellation
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- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Pathology (AREA)
- Molecular Biology (AREA)
- Biophysics (AREA)
- Otolaryngology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Multimedia (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
The invention discloses electromechanical integration acoustic-electrics to shield earmuff, including cover body, holder and active noise reduction system, the cover body are set as two and are connected to the both ends of holder, and the active noise reduction system is installed in cover body.By using multiple sound insulation composite construction cover body as passive noise reduction, Double-noise-reduction system is formed in conjunction with active noise reduction system.Solves the deficiency of cover aural headphone, simultaneously without building soundproof room, so that hearing test can smoothly be carried out in each clinic and community hospital, even can also it be carried out in public places such as park, supermarket, campuses, more crowds are facilitated to detect the hearing state of itself whenever and wherever possible, precautionary measures are carried out, the generation and development of deafness and tinnitus disease are effectively reduced.
Description
Technical field
The present invention relates to a kind of audiometry ear shield device, more particularly to a kind of electromechanical integration acoustic-electric shields earmuff.
Background technology
Hearing test is widely used in the diagnosis and treatment of otology, to be carried out hearing test project and be needed to be equipped with some facilities, example
Such as audiometry instrument and soundproof room.Audio tester is current most popular hearing device, and provisioned earphone is just frequently used
Checked etc. in hearing tests project in pure tone test, tinnitus, common cover aural headphone compared with general Earphone, although
The problem of comfortable wearing will not cause duct to collapse, but leakage sound, interaural attenuation be small and Occlusion effect does not solve still, as isolation
Outside noise interference just needs to build soundproof room, and the input of soundproof room needs to spend more fund, and in addition the space occupied is more,
For the more difficult satisfaction in clinic and community hospital, and with the raising of modern people's health perception, sense of hearing health care is needed to increase,
More close to people live place need to be equipped with most basic hearing test facility.
Invention content
According to an aspect of the invention, there is provided electromechanical integration acoustic-electric shields earmuff, including cover body, holder and active
Noise reduction system, the cover body are set as two and are connected to the both ends of holder, and the active noise reduction system is connect with cover body.
As a result, by installing active noise reduction system in cover body, sound wave identical with ambient noise opposite in phase, amplitude can be generated to support
Noiseless, to realize the effect of noise reduction.
In some embodiments, the cover body is multiple sound insulation composite construction.It as a result, can be effectively to noise vibration damping, suction
Sound and sound insulation are administered.
In some embodiments, the cover body includes connected sealing material layer and sound-absorbing material layer.Sealing material as a result,
Material can be sealed the space of cover body, and certain sound deadening space is formed to cover the external of human ear.Sound-absorbing material layer can be inhaled
Receive the noise being passed in external environment in cover body.
In some embodiments, the cover body further includes insulation material layer, and the absorbing material layer is connected to sound absorber
The side of the side of the bed of material, the insulation material layer is connected to the other side of sound-absorbing material layer.Insulation material layer can be into as a result,
The noise of external environment is isolated in one step.
In some embodiments, the cover body further includes absorbing material layer, and the absorbing material layer is connected to sound insulation material
The other side of the bed of material.Absorbing material layer can have high absorptivity in broad frequency band to electromagnetic wave as a result, to absorb projection
To the electromagnetic wave energy on its surface.
In some embodiments, the active noise reduction system includes sequentially connected voice collection device, analog/digital conversion
Device, DSP digital signal processor, D/A converter and sound output device.
In some embodiments, voice collection device includes microphone and the first amplifier, the output of the microphone
End is connect with the input terminal of the first amplifier, and the input of the output end and A/D converter of first amplifier connects.
In some embodiments, the sound output device includes the second amplifier and loud speaker, second amplification
The input terminal of device and the output end of D/A converter connect, and the output end of second amplifier is connect with loud speaker.
The beneficial effects of the invention are as follows：By using multiple sound insulation composite construction cover body as passive noise reduction, in conjunction with actively
Noise reduction system forms Double-noise-reduction system.Solves the deficiency of cover aural headphone, while without building soundproof room so that hearing is examined
Looking into can smoothly carry out in each clinic and community hospital, even can also be carried out in public places such as park, supermarket, campuses, convenient
More crowds detect the hearing state of itself whenever and wherever possible, carry out precautionary measures, effectively reduce the generation of deafness and tinnitus disease with
Development.
Description of the drawings
Fig. 1 is that the electromechanical integration acoustic-electric of an embodiment of the present invention shields the structural schematic diagram of earmuff；
Fig. 2 is the system construction drawing for the active noise reduction system that electromechanical integration acoustic-electric shields earmuff shown in Fig. 1.
Specific implementation mode
The invention will now be described in further detail with reference to the accompanying drawings.
Fig. 1 and Fig. 2 schematically shows a kind of electromechanical integration acoustic-electric shielding ear of embodiment according to the present invention
Cover.
Referring to Figures 1 and 2, electromechanical integration acoustic-electric shielding earmuff includes cover body 1, holder 2 and active noise reduction system 3.Cover
Body 1 is in semicircular arc, can cover the outer rim of human ear and form an airtight chamber between ear and cover body 1, can simulate
The effect of soundproof room.Cover body 1 is set as two and is connected to the both ends of holder 2, two ears of people can be covered, to two
Ear carries out sound insulation or plays sound respectively.Active noise reduction system 3 is connect with cover body 1.
Cover body 1 is multiple sound insulation composite construction.Cover body 1 includes sealing material layer 11, sound-absorbing material layer 12, insulation material layer
13 and absorbing material layer 14.Sealing material layer 11, sound-absorbing material layer 12, insulation material layer 13 and absorbing material layer 14 are from inside to outside
It sets gradually.
Sealing material layer 11 is connected to the side of sound-absorbing material layer 12, and the side of insulation material layer 13 is connected to sound-absorbing material
The other side of layer 12.Absorbing material layer 14 is connected to the other side of insulation material layer 13.Silica gel etc. can be used in sealing material layer 11
Material makes, and can be formed and be sealed in 1 inner wall of cover body.The making of the materials such as acoustical cotton can be used in insulation material layer 13, can absorb external
The noise that environment generates.The making of high density sound-insulation metal can be used in insulation material layer 13, can completely cut off the noise of external environment.Inhale wave
Material layer 14 is located at the outermost layer of cover body 1, can absorb or substantially weaken the electromagnetic wave energy for projecting its surface.
Active noise reduction system 3 include voice collection device 31, A/D converter 32, DSP digital signal processor 33, number/
Mode converter 34 and sound output device 35.
Voice collection device 31 includes microphone 311 and the first amplifier 312.The output end of microphone 311 is put with first
The input terminal connection of big device 312, the output end of the first amplifier 312 are connect with the input of A/D converter 32.
Sound output device 35 includes the second amplifier 351 and loud speaker 352, and the input terminal of the second amplifier 351 and number/
The output end of mode converter 34 connects, and the output end of the second amplifier 351 is connect with loud speaker 352.
Microphone 311 amplifies noise signal through the first amplifier 312, then for collecting environmental noise by analog/digital conversion
Device 32 is converted to digital signal and is input in DSP digital signal processor 33.DSP is Digital Signal Process, i.e.,
Digital Signal Processing.The analysis of DSP digital signal processor 33 calculates noise, then is generated by DSP digital signal processor 33
Digital signal that treated sends the second amplifier 351 to after D/A converter 34 is converted to analog signal, is put by second
The big amplification of device 351 and drive the speaker 352 generate sound wave identical as environmental noise amplitude and opposite in phase and eliminate environmental noise.
The electromechanical integration acoustic-electric shielding earmuff of the present invention further includes voice input device 4, the output of voice input device 4
End is connect with the input terminal of loud speaker 352, audio can be conveyed into cover body 1 and played out.
Above-described is only some embodiments of the present invention.For those of ordinary skill in the art, not
Under the premise of being detached from the invention design, various modifications and improvements can be made, these belong to the protection model of the present invention
It encloses.
Claims (8)
1. electromechanical integration acoustic-electric shields earmuff, it is characterised in that：Including cover body (1), holder (2) and active noise reduction system (3),
The cover body (1) is set as two and is connected to the both ends of holder (2), and the active noise reduction system (3) connects with cover body (1)
It connects.
2. electromechanical integration acoustic-electric according to claim 1 shields earmuff, it is characterised in that：The cover body (1) is multilayer
Sound insulation composite construction.
3. electromechanical integration acoustic-electric according to claim 2 shields earmuff, it is characterised in that：The cover body (1) includes phase
Sealing material layer (11) even and sound-absorbing material layer (12).
4. electromechanical integration acoustic-electric according to claim 3 shields earmuff, it is characterised in that：The cover body (1) further includes
Insulation material layer (13), the sealing material layer (11) are connected to the side of sound-absorbing material layer (12), the insulation material layer
(13) side is connected to the other side of sound-absorbing material layer (12).
5. electromechanical integration acoustic-electric according to claim 3 shields earmuff, it is characterised in that：The cover body (1) further includes
Absorbing material layer (14), the absorbing material layer (14) are connected to the other side of insulation material layer (13).
6. electromechanical integration acoustic-electric according to claim 1 shields earmuff, it is characterised in that：The active noise reduction system
(3) include sequentially connected voice collection device (31), A/D converter (32), DSP digital signal processor (33), D/A
Converter (34) and sound output device (35).
7. voice collection device (31) includes microphone (311) and the first amplifier (312), the output of the microphone (311)
End is connect with the input terminal of the first amplifier (312), output end and the A/D converter (32) of first amplifier (312)
Input connection.
8. electromechanical integration acoustic-electric according to claim 6 shields earmuff, it is characterised in that：The sound output device
(35) include the second amplifier (351) and loud speaker (352), the input terminal and D/A converter of second amplifier (351)
(34) output end connection, the output end of second amplifier (351) are connect with loud speaker (352).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810271998.7A CN108289260A (en) | 2018-03-29 | 2018-03-29 | Electromechanical integration acoustic-electric shields earmuff |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810271998.7A CN108289260A (en) | 2018-03-29 | 2018-03-29 | Electromechanical integration acoustic-electric shields earmuff |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108289260A true CN108289260A (en) | 2018-07-17 |
Family
ID=62834121
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810271998.7A Pending CN108289260A (en) | 2018-03-29 | 2018-03-29 | Electromechanical integration acoustic-electric shields earmuff |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108289260A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108937953A (en) * | 2018-09-21 | 2018-12-07 | 佛山市威耳听力技术有限公司 | Adjustable ear-shield type hearing test device |
Citations (8)
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|---|---|---|---|---|
| JP2011040831A (en) * | 2009-08-06 | 2011-02-24 | Audio Technica Corp | Headphone and method for canceling digital noise |
| CN103431945A (en) * | 2013-09-11 | 2013-12-11 | 巢雨 | Novel noise-proof earmuff |
| CN105187990A (en) * | 2015-10-10 | 2015-12-23 | 龚伟 | Active de-noising circuit and method of active de-noising earphone |
| CN105704598A (en) * | 2014-11-28 | 2016-06-22 | 南京青衿信息科技有限公司 | Singing earphone |
| CN105812995A (en) * | 2016-03-09 | 2016-07-27 | 西安航空学院 | Noise filtering method and device |
| CN106792316A (en) * | 2017-01-10 | 2017-05-31 | 南京航空航天大学 | A kind of industrial active noise reduction earmuff |
| CN107086034A (en) * | 2016-11-03 | 2017-08-22 | 北京安声科技有限公司 | A kind of vehicle-mounted active noise reduction system and method |
| CN107343235A (en) * | 2016-08-20 | 2017-11-10 | 中声科技（北京）有限公司 | It is a kind of can plug earphone cord active noise reduction earphone |
-
2018
- 2018-03-29 CN CN201810271998.7A patent/CN108289260A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011040831A (en) * | 2009-08-06 | 2011-02-24 | Audio Technica Corp | Headphone and method for canceling digital noise |
| CN103431945A (en) * | 2013-09-11 | 2013-12-11 | 巢雨 | Novel noise-proof earmuff |
| CN105704598A (en) * | 2014-11-28 | 2016-06-22 | 南京青衿信息科技有限公司 | Singing earphone |
| CN105187990A (en) * | 2015-10-10 | 2015-12-23 | 龚伟 | Active de-noising circuit and method of active de-noising earphone |
| CN105812995A (en) * | 2016-03-09 | 2016-07-27 | 西安航空学院 | Noise filtering method and device |
| CN107343235A (en) * | 2016-08-20 | 2017-11-10 | 中声科技（北京）有限公司 | It is a kind of can plug earphone cord active noise reduction earphone |
| CN107086034A (en) * | 2016-11-03 | 2017-08-22 | 北京安声科技有限公司 | A kind of vehicle-mounted active noise reduction system and method |
| CN106792316A (en) * | 2017-01-10 | 2017-05-31 | 南京航空航天大学 | A kind of industrial active noise reduction earmuff |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108937953A (en) * | 2018-09-21 | 2018-12-07 | 佛山市威耳听力技术有限公司 | Adjustable ear-shield type hearing test device |
| CN108937953B (en) * | 2018-09-21 | 2024-03-29 | 广州市清晰医疗器械有限公司 | Adjustable earmuff type hearing test device |
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