CN101346010B - Pressure reduction type headphone - Google Patents
Pressure reduction type headphone Download PDFInfo
- Publication number
- CN101346010B CN101346010B CN2008100321308A CN200810032130A CN101346010B CN 101346010 B CN101346010 B CN 101346010B CN 2008100321308 A CN2008100321308 A CN 2008100321308A CN 200810032130 A CN200810032130 A CN 200810032130A CN 101346010 B CN101346010 B CN 101346010B
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- earphone
- blade
- shell
- loudspeaker
- sound hole
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Abstract
The invention discloses a pressure reduction earphone, which comprises a shell and a speaker support in the earphone. A speaker is disposed on the speaker support. The earphone is characterized in: a tunable exterior sound releasing hole is formed on the back of the shell, and an interior sound releasing hole is formed on the speaker support; the exterior sound releasing hole is formed on the shell of the earphone end. As an improvement, on the back end in the earphone, a blade is disposed to match the exterior sound releasing hole, which is clung to the inner wall of the back of the shell; on the shell of the back of the earphone, a knob for turning the blade is disposed, which is vertically connected to the geometric center of the blade. As another improvement, the inner wall between the speaker and the blade is disposed with circular reticular membrane. A panel is also installed before the spinning blade in the earphone for ensuring Sound absorption effect and fixing sponge. The earphone can protect the hearing of user while ensuring sound effect and portability.
Description
Technical field
The present invention relates to a kind of pressure reduction type headphone, the particularly a kind of earphone that can protect earphone user hearing.
Background technology
Conventional earphone can be closed open originally external auditory meatus in use; This moment, sound can't leak in strong resonance and the acoustic pressure of external auditory meatus generation; Thereby the actual sound intensity that often makes earphone send exceeds people's earpiece receives ability, causes the earphone user that sense of discomfort is arranged, even causes hearing to descend.
The scheme of head it off has 2 kinds at present, and a kind of is the earphone of the patent No. 92226602, and a kind of is that the patent No. is 200510133698 product.The former adopts the earphone of annular loudspeaker supporter, though avoided the sealing external auditory meatus like this, because its volume makes earphone portable poor more greatly, thereby difficulty or ease are promoted the use of.What the latter adopted is the method for control volume, and this kind way has greater loss for tonequality, and does not deal with problems in itself, also is difficult to extensively replace common earphone.
Summary of the invention
Technical problem to be solved by this invention is, a kind of pressure reduction type headphone is provided, and this earphone can guarantee on tonequality and the portable basis effectively protection earphone user hearing.
The present invention solves the problems of the technologies described above the technical scheme that is adopted to be:
A kind of pressure reduction type headphone comprises shell, loudspeaker and loudspeaker supporter, it is characterized in that described shell is provided with the outside and lets out sound hole, on the said loudspeaker supporter acoustic pressure release channel is arranged.
Described acoustic pressure release channel is let out sound hole by the inside on the loudspeaker supporter of being located at sealing and is constituted.
Described acoustic pressure release channel is made up of the grid structure of loudspeaker supporter.
Described outside is let out sound hole and is opened on the shell of earphone rear end.
As improvement; Be provided with the outside in the inner rear end of earphone and let out the blade that sound hole cooperates; This blade is close to the inwall installation at shell rear portion, and the shell at earphone rear portion is provided with the knob that is used for the said blade of turn, and said knob is connected with the geometric center of blade is vertical.Its effect is the sealing that can realize down back cover in off position, looks on the bright side of things to open state under the formation outside and let out sound hole; Thereby guarantee the conversion of two kinds of patterns.
As improvement, said loudspeaker and interlobate outer casing inner wall are provided with circular reticular membrane.Said blade exterior is with baffle plate, between said reticular membrane and baffle plate, is provided with the sound-absorbing sponge.The effect of baffle plate is to prevent that blade from rolling the sound-absorbing sponge, guarantees sound-absorbing effect, simultaneously fixing sponge.Being combined into of reticular membrane and baffle plate limits the sound-absorbing sponge, prevents that the sound-absorbing sponge from sliding in the earphone cavity, and can make most of pressure can pass through reticular membrane.
Beneficial effect of the present invention:
(1) can effectively protect earphone user's hearing.Because on the shell of earphone, having the outside lets out sound hole; On the inner loudspeaker supporter of earphone, have inside and let out sound hole; Make sound pressure energy that sound that earphone sends produces at external auditory meatus some leak, avoided sound to produce strong resonance and infringement earphone user's hearing at the human body external auditory meatus.
(2) letting out volume can regulate.Owing to be provided with blading, (such as earphone user's preference) regulated and let out the size of sound hole according to actual needs, thereby makes the earphone user more feel comfortable.
(3) adopt sound-absorbing sponge sound-absorbing, further improve the sound absorbing power of earphone.Between reticular membrane and baffle plate, be provided with the sound-absorbing sponge, be used for the absorption portion acoustic pressure, the powerful acoustic pressure that when further reducing the earphone playing back music people's ear is caused.
Description of drawings
Fig. 1 is the embodiment of the invention 1 an overall structure sketch map (profile);
Fig. 2 is the embodiment of the invention 1 an outer casing back view;
Fig. 3 is the structural representation of the embodiment of the invention 1 loudspeaker supporter;
Fig. 4 is the embodiment of the invention 1 a blade sketch map;
Fig. 5 is the embodiment of the invention 1 a reticular membrane sketch map.
Label declaration: the 1-shell, 2-lets out sound hole in inside, the 3-loudspeaker, 4-sound-absorbing sponge, the 5-baffle plate, the 6-blade, the 7-knob, the 8-reticular membrane, 9-loudspeaker supporter, 10-lets out sound hole in the outside.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is described further.
Embodiment 1:
As shown in Figure 1, the pressure reduction type headphone that present embodiment relates to comprises shell 1, loudspeaker supporter 9 (for arc loudspeaker supporter), reticular membrane 8 (as shown in Figure 5), baffle plate 5, blade 6 and is arranged on the knob 7 at shell rear portion.The center of loudspeaker supporter 9 is provided with loudspeaker 3, and loudspeaker supporter 9 is provided with a plurality of inside and lets out sound hole 2 (as shown in Figure 3).Between baffle plate 5 and reticular membrane 8, be provided with sound-absorbing sponge 4, be used to absorb acoustic pressure strong excessively in the earphone outer covering.Be provided with a plurality of outsides at the rear portion of earphone outer covering 1 and let out sound hole 10 (as shown in Figure 2).Being used to regulate the blade 6 of letting out the sound hole real area in the outside and outside lets out sound hole 10 and cooperates that (blade is as shown in Figure 4; The area that its area is let out sound hole than the outside is big slightly); And the inwall that blade 6 is close to shell 1 rear end installs, and can block the outside fully through knob turn blade in the time of necessary and let out sound hole 10.Knob 7 is used for turn blade 6, thereby regulates the outside actual size of opening of letting out sound hole 10.Loudspeaker supporter 9 is a bowl structure, and its effect is suitably to have increased resonance, has improved acoustics.
Also have a kind of situation, be loudspeaker be arranged on one itself on a kind of support of non-tight structure, that is to say that this support itself just has the function that sound hole is let out in inside, therefore, just needn't be on support again setting let out sound hole, and obtain same beneficial effect.
Adopt 12 experimental guinea pigs to divide into groups (Novel earphone group and common headphones group) also through the stimulation of 6 hours very noisies (120dBSPL); It is carried out its objective audiometric test (ABR reaction threshold); Find that through experiment the related Novel earphone group of the utility model is than the low 15 ± 5dBSPL of temporary threshold shift (auditory fatigue) of common headphones group.Carry out the objective audiometric test after six weeks once more, the Novel earphone group is recovered hearing basically, and there is the permanent hearing impairment of 20 ± 5dBSPL in the common headphones group.Subsequently, the basilar membrane shop sheet hair cell counting after the cavy dissection is shown: the damage of Novel earphone group external hair cell is lacked, average loss rate 3 ± 1.3%, and common headphones group loss late 16 ± 2.7%, the latter is higher 4.3 times than the former, two groups of significant differences.Zooperal result of study indicates that from two aspects of auditory function and cytomorphology Novel earphone compares common earphone the effect of significant protection hearing is arranged.
Adopt this earphone, leaking of unnecessary sound pressure avoided the generation echo to disturb on the one hand, do not increase the volume (not increasing the volume structure in the outside of original earphone) of earphone on the other hand, so the design of this earphone guaranteed earphone audio and portability.
Claims (3)
1. a pressure reduction type headphone comprises shell, loudspeaker and loudspeaker supporter, it is characterized in that described shell is provided with the outside and lets out sound hole, on the said loudspeaker supporter acoustic pressure release channel is arranged;
Described outside is let out sound hole and is opened on the shell of earphone rear end;
Be provided with in the inner rear end of earphone with outside and let out the blade that sound hole cooperates, this blade is close to the inwall installation at shell rear portion, and the shell at earphone rear portion is provided with the knob that is used for the said blade of turn, and said knob is connected with the geometric center of blade is vertical;
It is a plurality of that sound hole is let out in described outside, and the circumferential arrangement of sound hole along the shell of earphone rear end let out in the outside, and described blade is a multi-disc;
Said loudspeaker and interlobate outer casing inner wall are provided with circular reticular membrane;
Said blade exterior is with baffle plate, between said reticular membrane and baffle plate, is provided with the sound-absorbing sponge.
2. a kind of pressure reduction type headphone as claimed in claim 1 is characterized in that, described acoustic pressure release channel is let out sound hole by the inside on the loudspeaker supporter of being located at sealing and constituted.
3. a kind of pressure reduction type headphone as claimed in claim 1 is characterized in that, described acoustic pressure release channel is made up of the grid structure of loudspeaker supporter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100321308A CN101346010B (en) | 2008-08-22 | 2008-08-22 | Pressure reduction type headphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100321308A CN101346010B (en) | 2008-08-22 | 2008-08-22 | Pressure reduction type headphone |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101346010A CN101346010A (en) | 2009-01-14 |
| CN101346010B true CN101346010B (en) | 2012-03-14 |
Family
ID=40247869
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100321308A Expired - Fee Related CN101346010B (en) | 2008-08-22 | 2008-08-22 | Pressure reduction type headphone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101346010B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9319771B2 (en) | 2012-08-09 | 2016-04-19 | Innovation Sound Technology Co., Ltd. | Earphone |
| CN103079137B (en) * | 2013-01-16 | 2016-06-08 | 青岛歌尔声学科技有限公司 | Earphone with equalizing device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2450845Y (en) * | 2000-10-30 | 2001-09-26 | 王宇航 | Dynamic balanced earpiece |
-
2008
- 2008-08-22 CN CN2008100321308A patent/CN101346010B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2450845Y (en) * | 2000-10-30 | 2001-09-26 | 王宇航 | Dynamic balanced earpiece |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101346010A (en) | 2009-01-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120314 Termination date: 20130822 |