CN107277664A - Noise filter and the earplug including it - Google Patents
Noise filter and the earplug including it Download PDFInfo
- Publication number
- CN107277664A CN107277664A CN201710570462.0A CN201710570462A CN107277664A CN 107277664 A CN107277664 A CN 107277664A CN 201710570462 A CN201710570462 A CN 201710570462A CN 107277664 A CN107277664 A CN 107277664A
- Authority
- CN
- China
- Prior art keywords
- ear end
- sound
- diameter
- filtering chamber
- chamber
- 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
- H04R1/1083—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
- H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
- H04R2201/10—Details of earpieces, attachments therefor, earphones or monophonic headphones covered by H04R1/10 but not provided for in any of its subgroups
Abstract
The invention discloses a kind of noise filter and the earplug including it, it include a gag and one with the cock body of the gag Joint, multiple sound inlets are offered on the remote ear end of the gag, the nearly ear end of the gag offers a groove, a tuning cotton is embedded with the groove, the cock body offers a filtering chamber successively by remote ear end to nearly ear extreme direction, one high-frequency filtering chamber and a conduction chamber, the diameter of the tuning cotton is less than or equal to the diameter of the filtering chamber, the nearly ear end of the filtering chamber offers a sound-absorbing pad and installs room, the sound-absorbing pad, which installs indoor location, the sound-absorbing pad of annular, the external diameter of the sound-absorbing pad is less than or equal to the diameter of the filtering chamber, the access opening of the centre of the sound-absorbing pad connects the high-frequency filtering chamber, the nearly ear end of the high-frequency filtering chamber is provided with filter bores, the filter bores connect the conduction chamber.The present invention is more more effectively to reduce various frequency hazardous noises by combining hole mode filter and tuning cotton, and human ear can be made to obtain sound in need.
Description
Technical field
The present invention relates to the technical field of the wave filter for filtering noise, more particularly to a kind of noise filter and bag
Include the earplug of the noise filter.
Background technology
The various requirements for hearing protection are more and more universal in current live and work, conventional various sponges, plastic cement ear
Plug can reduce the decibel value of various sound.Research and development have by said minuscule hole to reduce the penetrability of sound wave in the market at present, from
And reduction medium-high frequency intensity of sound is reached, but because of the diffraction characteristic of sound wave, for component frequency particularly Middle and low frequency noise
Reduction cannot be controlled effectively.
The content of the invention
The present invention for prior art the problem of exist and deficiency is there is provided a kind of noise filter and the earplug including it,
While hazardous noise is completely cut off, partial sound intensity in need can be maintained at again in the range of can rationally being obtained by human ear.
The present invention is to solve above-mentioned technical problem by following technical proposals：
The present invention provides a kind of noise filter, its feature is, it includes a gag and one and the gag Joint
Multiple sound inlets are offered on cock body, the remote ear end of the gag, the nearly ear end of the gag offers a groove, is embedded in the groove
There is a tuning cotton, the cock body offers a filtering chamber, a high-frequency filtering chamber and a biography successively by remote ear end to nearly ear extreme direction
Guide cavity, the diameter of the tuning cotton is less than or equal to the diameter of the filtering chamber, and the nearly ear end of the filtering chamber offers a sound-absorbing pad
Room is installed, the sound-absorbing pad, which installs indoor location, the sound-absorbing pad of annular, the external diameter of the sound-absorbing pad is less than or equal to the filtering chamber
Diameter, the access opening of the centre of the sound-absorbing pad connects the high-frequency filtering chamber, and the nearly ear end of the high-frequency filtering chamber is provided with filtering
Hole, the filter bores connect the conduction chamber, and the diameter of the filter bores is less than the diameter of the high-frequency filtering chamber.
It is preferred that the thickness of the tuning cotton is 0.01-1mm.
It is preferred that the remote ear end of the high-frequency filtering chamber is circle in cone, center section in circular arc chamfering opening, nearly ear end
Cylinder,
It is preferred that a diameter of 0.3-3mm of the mediate cylindrical of the high-frequency filtering chamber.
It is preferred that being provided with the filter bores, a diameter of 0.01- of the filter bores at the top of the nearly ear end of the high-frequency filtering chamber
0.3mm, length are 0.01-1mm.
It is preferred that the remote ear end of the conduction chamber is in cone, the top at the remote ear end of the conduction chamber is connected with the filter bores.
It is preferred that the internal diameter of the conduction chamber is less than or equal to the internal diameter of the high-frequency filtering chamber.
It is preferred that the nearly ear end of the cock body is in cylinder, the end at the nearly ear end of the cock body is set to cone, the cock body
The end at nearly ear end flushed with the end at the nearly ear end of the conduction chamber.
The present invention also provides a kind of earplug, and its feature is, it includes above-mentioned noise filter and earplug body, the noise
The wave filter that the nearly ear end of wave filter is inserted in the earplug body is filled in hole, and the internal diameter that the wave filter fills in hole is filtered less than the noise
The external diameter at the nearly ear end of ripple device.
It is preferred that the earplug is additionally provided with handle, the handle is arranged on the nearly ear end of the noise filter.
On the basis of common sense in the field is met, above-mentioned each optimum condition can be combined, and produce each preferable reality of the present invention
Example.
The positive effect of the present invention is：
The present invention is more more effectively to reduce various frequency hazardous noises by combining hole mode filter and tuning cotton,
And human ear can be made to obtain sound in need.Meanwhile, it can be used for adjusting ear external and internal pressure, can be applied to listen music, noise ring
Reduction ear canal pressure is poor in normal communication, sleep, study and work in border, flight way, tinnitus of releiving, pain etc. in ear.
Brief description of the drawings
Fig. 1 is the structural representation of the noise filter of present pre-ferred embodiments.
Fig. 2 is the structure decomposition figure of the earplug of the embodiment of the present invention one.
Fig. 3 is the structural representation of the earplug of the embodiment of the present invention one.
Fig. 4 is the structural representation of the earplug of the embodiment of the present invention two.
Fig. 5 is the structural representation of the earplug of the embodiment of the present invention three.
Fig. 6 is the structural representation of the earplug of the embodiment of the present invention four.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
A part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment obtained on the premise of creative work is not made, belongs to the scope of protection of the invention.
As shown in figure 1, the present embodiment provides a kind of noise filter, it includes a gag 2 and one and the Joint of gag 2
Cock body 1, certainly, the gag 2 and the cock body 1 can be integrally formed.
Multiple sound inlets 201 are offered on the remote ear end of the gag 2, the nearly ear end of the gag 2 offers a groove, and this is recessed
A tuning cotton 3 is embedded with groove；The cock body 1 offers a filtering chamber 101, a high frequency successively by remote ear end to nearly ear extreme direction
Filter chamber 103 and one conducts chamber 104, and the diameter of the tuning cotton 3 is less than or equal to the diameter of the filtering chamber 101, the filtering chamber
101 nearly ear end offers a sound-absorbing pad and installs room 102, and the sound-absorbing pad installs the sound-absorbing pad 4 that annular is provided with room 102,
The external diameter of the sound-absorbing pad 4 is less than or equal to the diameter of the filtering chamber 101, and the access opening 401 of the centre of the sound-absorbing pad 4 connects the height
Frequency filter chamber 103, the nearly ear end of the high-frequency filtering chamber 103 is provided with filter bores 105, and the filter bores 105 connect the conduction chamber
104, the diameter of the filter bores 105 is less than the diameter of the high-frequency filtering chamber 103.
Sound inlet 201 on gags 2 of the external sound wave S1 through plastic cement enters, and first passes through tuning cotton 3, enters back into filtering chamber
101；Tuning cotton 3 plays filtration fraction sound wave effect, is fallen according to the filter density of tuning cotton in most of high frequency sound wave and part
Low frequency sound wave, makes external sound S1 turn into once filtering sound S2.
The diameter of tuning cotton 3 is less than or equal to the diameter of filtering chamber 101, and thickness is 0.01-1mm, and PP, Buddhist nun can be used in material
Dragon, glass, carbon fiber nonwoven fabric or Web materials, or even metal etc.；Density is selected according to the demand for deadening frequency of sound wave
Select.Meanwhile, tuning cotton 3 has the effect of dust and water protection, and soft tuning cotton 3 is more conducive to absorb sound wave.
Because the space for filtering chamber 101 is larger, standing wave can be formed in chamber internal reflection, refraction by once filtering sound S2；
Therefore the nearly ear end of filtering chamber 101 is provided with sound-absorbing pad room 102 is installed, it is mounted therein with sound-absorbing pad 4, the external diameter of sound-absorbing pad 4
Less than or equal to the diameter of filtering chamber 101；There is an access opening 401 in the middle of sound-absorbing pad 4；Once filtering sound S2 is through access opening
401 enter high-frequency filtering chamber 103, form secondary filtering sound S3, continue to transmit into ear.Sound-absorbing pad 4 is mainly used in absorption sound
Ripple, is made of the cotton-wool thin slice of low-density, small Void-rich material, or the silicagel pad with space.
The remote ear end of high-frequency filtering chamber 103 is in circular arc chamfering opening, prevents sound wave from producing refraction in porch；High-frequency filtering
The center section of chamber 103 is cylinder, a diameter of 0.3mm to 3mm；The nearly ear end of high-frequency filtering chamber 103 is in cone, its top
Provided with filter bores 105, a diameter of 0.01mm to 0.3mm of filter bores 105, length are 0.01mm to 1mm, due to filter bores 105
Diameter it is extremely tiny, can to secondary filtering sound S3 carry out after-treatment, filter out once filtering sound S2 do not filtered
Part in low-and high-frequency noise；Secondary filtering sound S3 is changed into three times after filter bores 105 and filters sound S4, now three times
Filtering sound S4 passes through 3 filtering filterings, sufficiently lower high frequency noise, reduces middle low frequency noise, then by passing
Guide cavity 104 is transmitted into ear.
The remote ear end of conduction chamber 104 is similarly cone, and the top for conducting the remote ear end of chamber 104 is connected with filter bores, this
It is for the ease of the machine-shaping of filter bores 105 to locate cone；The internal diameter of conduction chamber 104 is smaller than being equal to high-frequency filtering chamber 103
Internal diameter size, preferably a diameter of 1mm to 2mm, length be 0.1mm to 8mm between.
The nearly ear end of cock body 1 is in cylinder, a diameter of 1.5mm to 4.5mm, length 3mm to 10mm；The nearly ear end of cock body 1
End be set to cone, the end diameter 1mm to 4.5mm of conical section, circular cone segment length 0.1mm to 3mm；It is easy to noise
In wave filter earplug body, the end at nearly ear end of the end at the nearly ear end of cock body 1 with conducting chamber 104 is flushed.
As shown in Figures 2 and 3, the present embodiment also provides a kind of earplug, and it includes above-mentioned noise filter 5, handle 6 and ear
Cock body 7, the ring bodies of the handle 6 is sheathed on the nearly ear end of the cock body 1, and the nearly ear end of cock body 1 is plugged on the noise filter 5
Filled in the wave filter of the earplug body 7 in hole 701, the shank body of the handle 6 is placed in the outside of the gag 2.
Handle 6 is plastic cement material, sets a ring bodies to be inserted on the cylinder at nearly ear end of cock body 1, is inserted into
Wave filter is filled in hole 701, and convenient use person takes out or insertion earplug after gripping.Earplug body 7 fills in hole provided with wave filter
701, the internal diameter that wave filter fills in hole 701 is slightly less than the external diameter of cock body 1, can have after being filled in so as to noise filter 5 preferable
Firmness；And the generally flexible plastic body of earplug body 7, with multilayer umbrella fin 702, fill in after ear, can be preferable
Laminating duct, prevents sound from entering out of earplug and duct air gap, and sound wave transmission can be reduced to greatest extent.
As shown in figure 4, being a kind of embodiment two of earplug of the invention, it is for the improvement of above-described embodiment one：By hand
Handle 6 is integrated with earplug body 7, reduces number of fitting parts, can equally realize above-mentioned functions.
As shown in figure 5, being a kind of embodiment three of earplug of the invention, it makes for above-described embodiment one, embodiment two
Further improve：Last layer of fin 702 on earplug body 7 is made improvement by it, increases its area, makes it have handle 6
Function, further reduces number of fitting parts, makes earplug profile more attractive in appearance, but can equally realize above-mentioned functions.
As shown in fig. 6, in being a kind of example IV of earplug of the invention, the embodiment, not setting on handle 6, earplug body 7
Provided with 2 layers of fin 702, although the earplug is not easy to pluck to put, but can equally realize the effect of filtering noise reduction.
Although the foregoing describing the embodiment of the present invention, it will be appreciated by those of skill in the art that these
It is merely illustrative of, protection scope of the present invention is defined by the appended claims.Those skilled in the art is not carrying on the back
On the premise of principle and essence from the present invention, various changes or modifications can be made to these embodiments, but these are changed
Protection scope of the present invention is each fallen within modification.
Claims (10)
1. a kind of noise filter, it is characterised in that it include a gag and one with the cock body of the gag Joint, the gag
Multiple sound inlets are offered on remote ear end, the nearly ear end of the gag offers a groove, a tuning cotton is embedded with the groove, should
Cock body offers a filtering chamber, a high-frequency filtering chamber and a conduction chamber, the tuning cotton successively by remote ear end to nearly ear extreme direction
Diameter be less than or equal to the diameter of the filtering chamber, the nearly ear end of the filtering chamber offers a sound-absorbing pad and installs room, the sound-absorbing
Pad, which installs indoor location, the sound-absorbing pad of annular, and the external diameter of the sound-absorbing pad is less than or equal to the diameter of the filtering chamber, the sound-absorbing
The access opening of the centre of pad connects the high-frequency filtering chamber, and the nearly ear end of the high-frequency filtering chamber is provided with filter bores, and the filter bores connect
Lead to the conduction chamber, the diameter of the filter bores is less than the diameter of the high-frequency filtering chamber.
2. noise filter as claimed in claim 1, it is characterised in that the thickness of the tuning cotton is 0.01-1mm.
3. noise filter as claimed in claim 1, it is characterised in that opened in circular arc chamfering at the remote ear end of the high-frequency filtering chamber
Mouth, nearly ear end are cylinder in cone, center section.
4. noise filter as claimed in claim 3, it is characterised in that the mediate cylindrical of the high-frequency filtering chamber is a diameter of
0.3-3mm。
5. noise filter as claimed in claim 3, it is characterised in that be provided with the top of the nearly ear end of the high-frequency filtering chamber
The filter bores, a diameter of 0.01-0.3mm of the filter bores, length are 0.01-1mm.
6. noise filter as claimed in claim 3, it is characterised in that the remote ear end of the conduction chamber is in cone, the conduction
The top at the remote ear end of chamber is connected with the filter bores.
7. noise filter as claimed in claim 6, it is characterised in that the internal diameter of the conduction chamber is less than or equal to the high-frequency filtering
The internal diameter of chamber.
8. noise filter as claimed in claim 6, it is characterised in that the nearly ear end of the cock body is in cylinder, the cock body
The end at nearly ear end is set to cone, and the end at the nearly ear end of the cock body is flushed with the end at the nearly ear end of the conduction chamber.
9. a kind of earplug, it is characterised in that it includes the noise filter and earplug as described in any one in claim 1-8
Body, the wave filter that the nearly ear end of the noise filter is inserted in the earplug body is filled in hole, and the internal diameter that the wave filter fills in hole is small
External diameter in the nearly ear end of the noise filter.
10. earplug as claimed in claim 9, it is characterised in that the earplug is additionally provided with handle, the handle is arranged on noise filter
The nearly ear end of ripple device.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710570462.0A CN107277664A (en) | 2017-07-13 | 2017-07-13 | Noise filter and the earplug including it |
| PCT/CN2017/108299 WO2019010864A1 (en) | 2017-07-13 | 2017-10-30 | Noise filter and earplug comprising same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710570462.0A CN107277664A (en) | 2017-07-13 | 2017-07-13 | Noise filter and the earplug including it |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107277664A true CN107277664A (en) | 2017-10-20 |
Family
ID=60072156
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710570462.0A Pending CN107277664A (en) | 2017-07-13 | 2017-07-13 | Noise filter and the earplug including it |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN107277664A (en) |
| WO (1) | WO2019010864A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108670554A (en) * | 2018-05-04 | 2018-10-19 | 广州市金凯迪家居用品有限公司 | Health-care earphone |
| CN108836630A (en) * | 2018-06-28 | 2018-11-20 | 广东工业大学 | A kind of noise elimination structure noiseproof earplug |
| WO2021036560A1 (en) * | 2019-08-26 | 2021-03-04 | 华为技术有限公司 | Wireless earbuds |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201893908U (en) * | 2010-12-18 | 2011-07-06 | 珠海隆凯医疗设备有限公司 | Filter and antinoise earplug |
| US20140355809A1 (en) * | 2013-05-28 | 2014-12-04 | Etymotic Research, Inc. | Flexible eartip with retention base |
| CN204859501U (en) * | 2015-07-22 | 2015-12-09 | 歌尔声学股份有限公司 | Earphone |
| CN206061088U (en) * | 2016-10-10 | 2017-03-29 | 珠海卓力声科技有限公司 | Earplug |
| CN207161698U (en) * | 2017-08-09 | 2018-03-30 | 上海绘润实业有限公司 | A kind of new structure applied to manual shift |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6478317B2 (en) * | 2014-12-24 | 2019-03-06 | 学校法人 東洋大学 | Earphone microphone with ear canal |
-
2017
- 2017-07-13 CN CN201710570462.0A patent/CN107277664A/en active Pending
- 2017-10-30 WO PCT/CN2017/108299 patent/WO2019010864A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201893908U (en) * | 2010-12-18 | 2011-07-06 | 珠海隆凯医疗设备有限公司 | Filter and antinoise earplug |
| US20140355809A1 (en) * | 2013-05-28 | 2014-12-04 | Etymotic Research, Inc. | Flexible eartip with retention base |
| CN204859501U (en) * | 2015-07-22 | 2015-12-09 | 歌尔声学股份有限公司 | Earphone |
| CN206061088U (en) * | 2016-10-10 | 2017-03-29 | 珠海卓力声科技有限公司 | Earplug |
| CN207161698U (en) * | 2017-08-09 | 2018-03-30 | 上海绘润实业有限公司 | A kind of new structure applied to manual shift |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108670554A (en) * | 2018-05-04 | 2018-10-19 | 广州市金凯迪家居用品有限公司 | Health-care earphone |
| CN108836630A (en) * | 2018-06-28 | 2018-11-20 | 广东工业大学 | A kind of noise elimination structure noiseproof earplug |
| WO2021036560A1 (en) * | 2019-08-26 | 2021-03-04 | 华为技术有限公司 | Wireless earbuds |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019010864A1 (en) | 2019-01-17 |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171020 |
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| RJ01 | Rejection of invention patent application after publication |