CN207835719U - A kind of earphone - Google Patents
A kind of earphone Download PDFInfo
- Publication number
- CN207835719U CN207835719U CN201721766350.4U CN201721766350U CN207835719U CN 207835719 U CN207835719 U CN 207835719U CN 201721766350 U CN201721766350 U CN 201721766350U CN 207835719 U CN207835719 U CN 207835719U
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- China
- Prior art keywords
- shell
- short circuit
- partition board
- acoustic short
- circuit hole
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Abstract
The utility model discloses a kind of earphones, including shell and phonation unit, partition board is equipped in shell, phonation unit is embedded in partition board, the cavity that shell surrounds is divided into the preceding operatic tunes and the rear operatic tunes by phonation unit with partition board, and partition board is provided with the acoustic short circuit hole for being connected to the preceding operatic tunes and the rear operatic tunes and adjusts the tuning knob of acoustic short circuit hole breathing area.By the breathing area in adjusting acoustic short circuit hole to control the frequency response of low frequency, when frequency response changes, the transmission function caused by frequency response can also change, and the filter circuit function in chip is constant, thus can cause the variation of the matching degree of the two.Noise reduction can be reduced according to the reduction of transmission function and filter circuit function matching degree, it is achieved that controlling the noise reduction of earphone by rotating tuning knob.
Description
Technical field
The utility model is related to acoustic product technical fields.More particularly, to a kind of earphone.
Background technology
Earphone is a kind of acoustic-electric conversion products, and earphone is subjected to the telecommunication that media player or other receivers are sent out
Number, the sound wave that can be heard is converted electrical energy into using the Microspeaker close to ear, is mobile phone, walkman, radio etc.
The essential accessory of portable electronic device, oneself warp of earphone become the articles for daily use of people's daily life.
Earphone is put into ear by user in use, earphone can not be fully sealed with user's earphone, and ambient noise can pass through
The gap of earphone and human ear enters ear, makes to cause user to be interfered by outside noise mixed with noise in the sound that user hears.
It is typically provided with noise reduction mode in existing earphone, the interference that earphone goes out sound is listened to user to weaken ambient noise.Current earphone
In be typically provided with the noise reduction microphone and main control chip of receivable ambient noise, counter make an uproar is formed by the filter on main control chip
Acoustical signal, with enter human ear in noise cancellation realize noise reduction, current noise cancelling headphone substantially by change filter or
The gain of filter circuit on main control chip is changed to realize the switching of noise reduction mode or noise reduction gear, noise reduction gear is limited, and adjusts
It is not high to save precision.
Accordingly, it is desirable to provide a kind of noise cancelling headphone that different noise reductions are adjusted, makes user in different noise circumstances
Good noise reduction can be obtained.
Utility model content
The purpose of this utility model is to provide a kind of noise cancelling headphones that different noise reductions are adjusted.
To achieve the goals above, the utility model provides a kind of earphone, including shell and phonation unit, the shell
Interior to be equipped with partition board, the phonation unit is embedded in the partition board, the chamber that the phonation unit surrounds the shell with the partition board
Body is divided into the preceding operatic tunes and the rear operatic tunes, and the partition board is provided with the acoustic short circuit hole for being connected to the preceding operatic tunes and the rear operatic tunes and adjusting
The tuning knob of acoustic short circuit hole breathing area.
Preferably, the tuning knob includes that the planar portions being set on the partition board and the control planar portions movement are adjusted
The extension of acoustic short circuit hole breathing area, the extension are at least partly exposed to outside the shell.
Preferably, the move mode of the planar portions includes moving in rotation or linear movement.
Preferably, adjustment hole corresponding with the acoustic short circuit hole is provided in the planar portions.
Preferably, the coincident at the edge of the adjustment hole and the acoustic short circuit hole.
Preferably, the extension is directed away from the preceding operatic tunes direction and extends to outside the shell.
Preferably, the acoustic short circuit hole is arc or bar shaped slit.
Preferably, further include the main control chip being electrically connected with the phonation unit in the shell, the earphone is further
Include the rear cover combined with the shell, noise reduction microphone, the drop are equipped in the cavity that the rear cover is surrounded with the shell
The output end of microphone of making an uproar is electrically connected with the main control chip.
Preferably, the shell corresponds to the region of the preceding operatic tunes and is equipped with the channel and set on the tunnel ends of speaking of speaking
The ear muff in portion.
The technique effect of the utility model at least that, the partition board of the earphone is provided with acoustic short circuit hole, and earphone is equipped with tuning
Knob is furnished with the adjustment hole of different pore size size on tuning knob.Since generating unit is forward anti-with sound wave when moving backward
Phase, rear sound wave can be superimposed by acoustic short circuit diffraction by aperture with preceding sound wave, therefore can pass through sound after rotation tuning knob control
Wave adjusts the size of synthesis acoustic pressure to the diffraction amount of ante-chamber.And the frequency of sound wave is lower, diffracting power is stronger, so this reality
With the novel frequency response that can effectively control low frequency.When frequency response changes, the transmission function caused by frequency response
Also can change, and the filter circuit function in chip is constant, thus the variation of the matching degree of the two can be caused.Noise reduction can root
It is reduced according to the reduction of transmission function and filter circuit function matching degree, it is achieved that being controlled by rotating tuning knob
The noise reduction of earphone.Simultaneously as earphone is different from the degree of coupling difference of the different human ears leakage rate that can lead to low frequency, the party
Case can also be such that wearer adjusts to the suitable acoustical quality of oneself.
Description of the drawings
The attached drawing of a part for constitution instruction describes the embodiments of the present invention, and uses together with the description
In explanation the principles of the present invention.
Fig. 1 is the earphone shape assumption diagram of one embodiment according to the present utility model；
Fig. 2 is the earphone sectional view of one embodiment according to the present utility model；
Reference numeral：
11 be front housing, and 111 be partition board, and 1111 be acoustic short circuit hole, and 12 be rear shell, and 13 be rear cover, and 131 be sound hole, and 14 are
Noise reduction microphone, 15 be phonation unit, and 16 be tuning knob, and 161 be planar portions, and 1611 be sound regulating hole, and 162 be extension, 17
It is channel of speaking for groove, 18.
Specific implementation mode
The various exemplary embodiments of the utility model are described in detail now with reference to attached drawing.It should be noted that：Unless another
It illustrates outside, the component and the positioned opposite of step, numerical expression and numerical value otherwise illustrated in these embodiments is unlimited
The scope of the utility model processed.
It is illustrative to the description only actually of at least one exemplary embodiment below, is never used as to this practicality
Novel and its application or any restrictions used.
Technology, method and apparatus known to person of ordinary skill in the relevant may be not discussed in detail, but suitable
In the case of, the technology, method and apparatus should be considered as part of specification.
In shown here and discussion all examples, any occurrence should be construed as merely illustrative, without
It is as limitation.Therefore, other examples of exemplary embodiment can have different values.
It should be noted that：Similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined, then it need not be further discussed in subsequent attached drawing in a attached drawing.
One embodiment according to the present utility model provides a kind of earphone.As depicted in figs. 1 and 2, which includes shell
With phonation unit 15, shell is interior to be equipped with partition board 111, and partition board 111 can be fixed with shell by gluing, it is preferable that partition board 111 and shell
Body by integral forming.Wherein, shell includes the front housing 11 and rear shell 12 of corresponding combination, and partition board 111 is set to front housing 11 or rear shell
12, the utility model is set to front housing 11 to partition board or rear shell 12 is not limited.Phonation unit 15 is embedded in partition board 111,
The cavity that shell surrounds is divided into the preceding operatic tunes and the rear operatic tunes by phonation unit 15 with partition board 111.
In the present embodiment, partition board 111 is provided with the acoustic short circuit hole 1111 for being connected to the preceding operatic tunes and the rear operatic tunes and adjusting sound
The tuning knob 16 of 1111 breathing area of short circuit hole.Earphone in use, generating unit 15 forward with backward move when sound
Wave is reverse phase, and rear sound wave can be superimposed by 1111 diffraction of acoustic short circuit hole with preceding sound wave, sound after rotation tuning knob 16 controls
Wave adjusts the size of synthesis acoustic pressure to the diffraction amount of ante-chamber.And the frequency of sound wave is lower, diffracting power is stronger, the present embodiment
The frequency response of low frequency can effectively be controlled.
In the present embodiment, further include the main control chip being electrically connected with phonation unit 15 in shell, earphone further comprises
Noise reduction microphone 14, the output of noise reduction microphone are equipped in the cavity that the rear cover 13 combined with shell, rear cover 13 and shell surround
End is electrically connected with main control chip.
When frequency response changes, the transmission function caused by frequency response can also change, and the filtering in main control chip
Circuit function is constant, thus can cause the variation of the matching degree of the two.Noise reduction can according to pass letter matching degree reduction and
It reduces, it is achieved that controlling the noise reduction of earphone by rotating tuning knob 16.Simultaneously as earphone and different human ears
Degree of coupling difference can cause the leakage rate of low frequency different, which can also be such that wearer adjusts to the suitable sound quality of oneself
Effect.
Further, tuning knob 16 includes that the planar portions 161 being set on partition board 111 and the movement of control plane portion 161 are adjusted
The extension 162 of 1111 breathing area of acoustic short circuit hole is saved, the one end of extension 162 far from planar portions 161 is exposed to outside shell, side
Just user's operation.
In the present embodiment, the move mode of planar portions 161 is moving in rotation, and user is driven by rotating extension 162
Planar portions 161 rotate.In order to accurately adjust acoustic short circuit hole 1111 breathing area size, can be arranged planar portions 161 be circle
Corresponding with acoustic short circuit hole 1111 adjustment hole 1611 is arranged in shape in planar portions 161, it is preferable that the edge of adjustment hole 1611 and
The edge in acoustic short circuit hole 1111 is completely superposed, and by rotary regulator 16, makes adjustment hole 1611 and the acoustic short circuit in planar portions 161
Hole 1111 misplaces, and part planar portion 161 can be covered in the surface in acoustic short circuit hole 1111, can to change acoustic short circuit hole 1111
Allow air by breathing area, realize adjust 15 low frequency response of phonation unit effect.
Optionally, the adjustment hole 1611 in multiple and different apertures is arranged in planar portions 161, and the adjustment hole 1611 of different pore size corresponds to
Different breathing areas.
In another embodiment, the contour edge of planar portions 161 can be located on the outside of the edge in acoustic short circuit hole 1111, with
Acoustic short circuit hole 1111 can be completely covered.The corresponding region for being fixed on shell setting acoustic short circuit hole 1111 of planar portions 161, extends
Portion 162 drives planar portions 161 to move under the operation of user, and acoustic short circuit hole 1111 and gradually can be gradually covered in moving process
Exposure acoustic short circuit hole 1111, to realize the adjusting of 1111 breathing area of acoustic short circuit hole.
Specifically, planar portions 161 can be arranged only occupies part arc area on the circumference of rotation, when planar portions 161 exist
When 1111 surface of acoustic short circuit hole, covering acoustic short circuit hole 1111, when adjuster 16 rotates, the rotation of planar portions 161 is simultaneously short far from sound
Road hole 1111, so as to exposure acoustic short circuit hole 1111, you can realize the variation of 1111 breathing area of acoustic short circuit hole.
Adjuster 16 can be arranged with respect to 1111 moving in rotation of acoustic short circuit hole such as the present embodiment, may be alternatively provided as straight line
The ventilation face in acoustic short circuit hole 1111 is adjusted in moving in rotation or linear movement in other movement forms such as mobile, adjuster 16
Product.When planar portions 161 move linearly relative to acoustic short circuit hole 1111, it need to be arranged on partition board 111 and to be moved for adjuster 16
The breathing area size in acoustic short circuit hole 1111 is adjusted when adjuster 16 moves in slideway in slideway.Certainly, using straight line
Adjustment hole corresponding with acoustic short circuit hole 1,111 1611 can also be set in the planar portions 161 of mobile adjuster 16.This practicality is new
The mobile form of adjuster described in type is not limited to both the above form.
Acoustic short circuit hole 1111 may be configured as the shapes such as arc or bar shaped slit.In the present embodiment, acoustic short circuit hole 1111 is
Uniform arcuate slots, when extension 162 rotates, and planar portions 161 is driven to rotate, it can be achieved that 16 amount of spin of adjusting knob and sound
The knots modification of 1111 breathing area of short circuit hole is linear relationship, can reduce user and adjust difficulty.Certainly, acoustic short circuit hole 1111 can root
According to the Bu Tong flexibly setting of headset type in practical application and application, by be arranged acoustic short circuit hole 1111 shapes and sizes and
Adjusting knob 16 is, it can be achieved that the adjusting of different noise reduction and realize different noise reduction degree of regulation, for acoustic short circuit hole 1111
Size and shape the utility model be not restricted.
The region of the operatic tunes is equipped with channel 18 and the ear muff set on 18 end of channel of speaking outstanding of speaking before shell corresponds to
The end of (not shown), channel 18 of speaking is equipped with concave part 17, so that ear muff may be stuck in concave part 17, it is logical with speaking
Road 18 is fixed.
Although some specific embodiments of the utility model are described in detail by example, this field
It is to be understood by the skilled artisans that example above merely to illustrate, rather than in order to limit the scope of the utility model.This
Field it is to be understood by the skilled artisans that can not depart from the scope of the utility model and spirit in the case of, to above example
It modifies.The scope of the utility model is defined by the following claims.
Claims (9)
1. a kind of earphone, including shell and phonation unit, which is characterized in that be equipped with partition board, the phonation unit in the shell
Embedded in the partition board, the cavity that the shell surrounds is divided into the preceding operatic tunes and the rear operatic tunes by the phonation unit with the partition board；
The partition board is provided with the acoustic short circuit hole for being connected to the preceding operatic tunes and the rear operatic tunes and adjusts acoustic short circuit hole ventilation face
Long-pending tuning knob.
2. earphone according to claim 1, which is characterized in that the tuning knob includes the plane being set on the partition board
Portion and the control planar portions movement adjust the extension of acoustic short circuit hole breathing area, and the extension at least partly exposes
In outside the shell.
3. earphone according to claim 2, which is characterized in that the move mode of the planar portions includes moving in rotation or straight
Line moves.
4. earphone according to claim 2, which is characterized in that be provided in the planar portions corresponding with the acoustic short circuit hole
Adjustment hole.
5. earphone according to claim 4, which is characterized in that the edge at the edge of the adjustment hole and the acoustic short circuit hole
It overlaps.
6. earphone according to claim 2, which is characterized in that the extension is directed away from the preceding operatic tunes direction and extends
Outside to the shell.
7. earphone according to claim 1, which is characterized in that the acoustic short circuit hole is arc or bar shaped slit.
8. earphone according to claim 1, which is characterized in that further include being electrically connected with the phonation unit in the shell
Main control chip；
The earphone further comprises the rear cover combined with the shell, is equipped in the cavity that the rear cover is surrounded with the shell
Noise reduction microphone, the output end of the noise reduction microphone are electrically connected with the main control chip.
9. earphone according to claim 1, which is characterized in that the shell correspond to the preceding operatic tunes region be equipped with speak
Channel and ear muff set on the channel end of speaking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721766350.4U CN207835719U (en) | 2017-12-18 | 2017-12-18 | A kind of earphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721766350.4U CN207835719U (en) | 2017-12-18 | 2017-12-18 | A kind of earphone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207835719U true CN207835719U (en) | 2018-09-07 |
Family
ID=63387947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721766350.4U Active CN207835719U (en) | 2017-12-18 | 2017-12-18 | A kind of earphone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207835719U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114640929A (en) * | 2022-04-18 | 2022-06-17 | 歌尔股份有限公司 | Sound production device and electronic equipment |
| US12069441B2 (en) | 2020-11-30 | 2024-08-20 | Gn Hearing A/S | Hearing device earpiece and receiver with vent assembly |
-
2017
- 2017-12-18 CN CN201721766350.4U patent/CN207835719U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US12069441B2 (en) | 2020-11-30 | 2024-08-20 | Gn Hearing A/S | Hearing device earpiece and receiver with vent assembly |
| CN114640929A (en) * | 2022-04-18 | 2022-06-17 | 歌尔股份有限公司 | Sound production device and electronic equipment |
| CN114640929B (en) * | 2022-04-18 | 2023-12-22 | 歌尔股份有限公司 | Sound producing device and electronic equipment |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |