CN208754511U - A kind of headphone acoustic cavity body structure - Google Patents
A kind of headphone acoustic cavity body structure Download PDFInfo
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- CN208754511U CN208754511U CN201821792750.7U CN201821792750U CN208754511U CN 208754511 U CN208754511 U CN 208754511U CN 201821792750 U CN201821792750 U CN 201821792750U CN 208754511 U CN208754511 U CN 208754511U
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- venthole
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- groove
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Abstract
The utility model relates to Headphone structure design fields, specifically disclose a kind of headphone acoustic cavity body structure, including disc, loudspeaker and rear shell, in the cavity that the loudspeaker is placed in disc and rear shell is formed, rear shell inner space is divide into upper part and lower part it is characterized by: the rear shell is equipped with separation layer, the upper part of the rear shell is a plane, and the lower part of rear shell is a cavity；The top of the separation layer is equipped with groove, and one end of the groove is equipped with the first venthole through separation layer, and the other end of groove is equipped with the second venthole for penetrating rear shell shell wall, and first venthole, the second venthole and groove are interconnected；Third venthole and electric conduit are additionally provided on the rear shell shell wall；The separation layer is equipped with baffle for covering groove and sealing plane, the method that the utility model can increase acoustics adjusting, adjusts audio by the size and the length scale of sound guide tube that change each venthole, designs the earphone of different audio genres and performance.
Description
Technical field
The utility model relates to Headphone structure design field more particularly to a kind of headphone acoustic cavity body structures.
Background technique
Traditional earphone back cavity cavity, especially In-Ear Headphones, acoustics debugging are all made of aperture in structure design and set
It counts to do approach and mode of frequency regulation of the intracavitary sound wave to external communication, sound wave travels to outside chamber from the intracavitary venthole that passes through, due to
Sound wave is directly radiation, even being provided with multiple hole locations, the sound wave in same cavity because of the number of openings and pore size difference,
The transmission speed of sound wave can only be had an impact, wavelength will not be had an impact, is i.e. the influence of frequency only can be because of the ventilative resistance in hole
Buddhist nun debugs, and this structure has certain limitation to the design of acoustics, keeps acoustics adjustment method single, and debugging difficulty increases.
Utility model content
In view of the above technical problems, the utility model, which provides one kind, can increase acoustics adjusting method, debug out difference
The headphone acoustic cavity body structure of sound quality style.
In order to solve the above-mentioned technical problem, concrete scheme provided by the utility model is as follows: a kind of headphone acoustic cavity knot
Structure, including disc, loudspeaker and rear shell, the loudspeaker are placed in the cavity that disc and rear shell are formed, the rear shell be equipped with every
Rear shell inner space is divide into upper part and lower part by absciss layer, and the upper part of the rear shell is a plane, and the lower part of rear shell is one
A cavity；
The top of the separation layer is equipped with groove, and one end of the groove is equipped with the first venthole through separation layer, recessed
The other end of slot is equipped with the second venthole for penetrating rear shell shell wall, and first venthole, the second venthole are mutually interconnected with groove
It is logical；
Third venthole and electric conduit are additionally provided on the rear shell shell wall；
The separation layer is equipped with the baffle for covering groove and sealing plane, partially puts down when baffle is installed in rear shell
Cover groove on face, and and flat seal, former groove transition phase is connect by groove with the second venthole at pipeline, the first venthole
Logical, actual transition is a leading note siphunculus, when the sound wave generated when speaker operation in the cavity of part instantly is propagated outward, one
Branch is exported by third venthole, and a part can be exported by leading note siphunculus, in the way of this sonic transmissions, can increase acoustics
The method of adjusting.
Preferably, second venthole is located on the shell wall of the upper part of rear shell, and the third venthole is located at rear shell
Lower part shell wall on.
Preferably, two-sided rubber mat is equipped between the separation layer and baffle, two-sided rubber mat outer diameter is with the positioning of separation layer top
It is smooth on separation layer on the basis of step internal diameter.
Preferably, the groove is arc groove or rectangular recess.
Preferably, the upper part horizontal edge of the rear shell is equipped with the positioning step that protrusion plane is used to install baffle, mentions
The whole stability in use of the high cavity body structure.
Preferably, the disc includes the opening portion that bottom and bottom upwardly extend, and the internal edge of the opening portion is set
There is the installation step for installing loudspeaker；The middle position of the bottom is equipped with sound guide tube.
Preferably, the edge of the bottom is equipped with the 4th venthole.
Preferably, the cavity volume of part is 1.5 times of loudspeaker volume or more under the rear shell, and the volume of cavity can make
The ventilative damp-controllable of third venthole can effectively adjust the audio frequency response of earphone.
Preferably, it is respectively equipped with tuning material on the third venthole and the 4th venthole, by adjusting tuning material
Ventilative density change the ventilative damping of third venthole and the 4th venthole, so that effectively adjustment earpiece audio frequency is rung
It answers.
Preferably, the loudspeaker is dynamic speaker, and the edge of loudspeaker is equipped with sound regulating hole.
Compared with prior art, the utility model has the beneficial effects that: the utility model is equipped with separation layer in rear shell,
The isolation of rear shell internal structure is divide into upper part and lower part, groove is arranged in the top of separation layer, and passes through the first venthole and second
Venthole is connected to outside rear shell lower part partial volume chamber and rear shell, and groove is covered simultaneously sealing plane with baffle, becomes groove transition
Leading note siphunculus, the sound wave a part generated when in cavity intracavitary speaker operation are exported from third venthole, a part
It is exported from leading note siphunculus, this design makes sound wave generate frequency difference because of two different routes of transmission, in acoustics design
It can use this property difference and carry out various combination debugging, increase acoustics adjustment method and means, can debug out
The earphone of different sound quality styles enriches subjective feeling of the earphone in sound quality.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the utility model embodiment one；
Fig. 2 and Fig. 3 is back cover structure schematic diagram；
Fig. 4 is disc structural schematic diagram；
Fig. 5 is the integrally-built schematic cross-section of embodiment two；
Fig. 6 is the Acoustic Wave Propagation approach in the case of no baffle；
Fig. 7 is the Acoustic Wave Propagation approach in the case of having baffle；
The frequency response song that Acoustic Wave Propagation difference of the Fig. 8 for no baffle and in the case of having two kinds of baffle influences audio frequency
Line schematic diagram；
Wherein, 1 is disc；2 be loudspeaker；3 be rear shell；4 be separation layer；5 be groove；6 be the first venthole；7 be
Two ventholes；8 be third venthole；9 be electric conduit；10 be baffle；11 be two-sided rubber mat；12 be installation step；13 be to lead
Sound tube；14 be the 4th venthole；15 be tuning material；16 be sound regulating hole.
Specific embodiment
It is right below in conjunction with the attached drawing of the utility model embodiment in order to which the technical solution of the utility model is described in detail
The technical solution of the utility model embodiment carries out clear, complete description.Obviously, described embodiment is the utility model
A part of the embodiment, instead of all the embodiments.Based on described the embodiments of the present invention, the common skill in this field
Art personnel every other embodiment obtained under the premise of being not necessarily to creative work, belongs to the model of the utility model protection
It encloses.
Embodiment one:
Fig. 1 is please referred to, a kind of headphone acoustic cavity body structure, including disc, loudspeaker and rear shell is present embodiments provided, raises
In the cavity that sound device is placed in disc and rear shell is formed, loudspeaker is dynamic speaker, and the edge of loudspeaker is equipped with sound regulating hole,
Rear shell is equipped with separation layer and is divide into upper part and lower part rear shell inner space, and the upper part of rear shell is a plane, the lower part of rear shell
Dividing is a cavity, and the volume of cavity is 1.5 times of loudspeaker volume or more, and in the present embodiment, the volume that cavity is arranged is
The volume of 1.6 times of loudspeaker volume, cavity can make the ventilative damp-controllable of third venthole, can effectively adjust the sound of earphone
Frequency frequency response, the top of separation layer are equipped with groove, and one end of groove is equipped with the first venthole through separation layer, groove it is another
One end is equipped with the second venthole for penetrating rear shell shell wall, and the first venthole, the second venthole and groove are interconnected, such as Fig. 2 and 3
Shown, the setting position of groove is different from Fig. 1, and the groove of Fig. 2 and Fig. 3 are arc groove, the first venthole and the second venthole
Be located at two ends of groove, groove is located at separation layer top, can be set to edge or the center position Chu Deng, Fig. 2 and
The groove shapes of Fig. 3 are identical, but position is different, and similarly, the specific location of the first venthole and the second venthole is with groove
Position is different and different, third venthole and electric conduit is additionally provided on rear shell shell wall, third venthole makes disc and rear shell group
At the intracorporal air of chamber be connected to outside air, by adjust third venthole size can adjust different audio genres
Earphone, the electric wire for connecting with loudspeaker is equipped in electric conduit, and separation layer is equipped with for covering groove and sealing plane
Baffle, groove is covered on part planar when baffle is installed in rear shell, and and flat seal, former groove transition is at pipeline,
One venthole is connect by groove with the second venthole and is communicated, and actual transition is a leading note siphunculus, instantly loudspeaking in the cavity of part
When the sound wave that device generates when working is propagated outward, a part can be exported by third venthole, and a part can be exported by leading note siphunculus,
In the way of this sonic transmissions, the method for acoustics adjusting can be increased.
In order to reach preferable regulating effect, the second venthole is set to the shell wall of the upper part of rear shell in the present embodiment
On, third venthole is set on the shell wall of the lower part of rear shell.
As shown in figure 4, disc includes the opening portion that bottom and bottom upwardly extend, the internal edge of opening portion, which is equipped with, to be used for
The installation step of loudspeaker is installed, the middle position of bottom is equipped with sound guide tube, sets in surrounding, that is, bottom edge of sound guide tube
There is the 4th venthole, tuning material is respectively equipped on third venthole, the 4th venthole and sound guide tube, by adjusting tuning material
The ventilative density of material changes the ventilative damping of third venthole, the 4th venthole and sound guide tube, can effectively adjust earphone sound
Frequency frequency response.
For the whole stability in use for improving the cavity body structure, part horizontal edge is set on the rear shell separation layer of the present embodiment
There is protrusion plane to be used to install the positioning step of baffle, while being additionally provided with two-sided rubber mat, double-sided adhesive between separation layer and baffle
Outer diameter is padded on the basis of the positioning step internal diameter of separation layer top, it is smooth in positioning step on separation layer.
Embodiment two:
Referring to figure 5., the present embodiment is similar to embodiment one, the difference is that, the groove in the present embodiment is rectangle
Groove, Fig. 6 are illustrated when baffle does not cover groove and sealing plane, and the second venthole is ineffective, the only first ventilation
Hole and third venthole are ventilative, therefore sonic transmissions are the ventilative circulation way of two ventholes in cavity；As shown in fig. 7, when gear
When plate covers groove and sealing plane, groove transition becomes air guide siphunculus, and sound wave a part is propagated by air guide siphunculus in cavity
To outside chamber, a part travels to outside chamber by third venthole, therefore the ventilative propagation that sonic transmissions are a venthole adds one
The transport of leading note siphunculus is propagated.As shown in figure 8, for no baffle and having generated audio frequency under two kinds of routes of transmission of baffle
Rate response curve comparison, the verifying are only verified as the opposite test comparison of two kinds of circulation ways.
The embodiments of the present invention is explained in detail above in conjunction with attached drawing, but the utility model is not limited to
Above embodiment can also not depart from the utility model within the knowledge of a person skilled in the art
Various changes can be made under the premise of objective.
Claims (10)
1. a kind of headphone acoustic cavity body structure, including disc (1), loudspeaker (2) and rear shell (3), the loudspeaker (2) are placed in pad
In the cavity that disk (1) and rear shell (3) are formed, it is characterised in that: the rear shell (3) is equipped with separation layer (4), and rear shell (3) is internal empty
Between be divide into upper part and lower part, the upper part of the rear shell (3) is a plane, and the lower part of rear shell (3) is a cavity；
The top of the separation layer (4) is equipped with groove (5), and one end of the groove (5) is logical equipped with run through separation layer (4) first
Stomata (6), the other end of groove (5) are equipped with the second venthole (7) for penetrating rear shell (3) shell wall, first venthole (6),
Second venthole (7) and groove (5) are interconnected；
Third venthole (8) and electric conduit (9) are additionally provided on rear shell (3) shell wall；
The separation layer (4) is equipped with the baffle (10) for covering groove (5) and sealing plane.
2. headphone acoustic cavity body structure according to claim 1, it is characterised in that: after second venthole (7) is located at
On the shell wall of the upper part of shell (3), on the shell wall for the lower part that the third venthole (8) is located at rear shell (3).
3. headphone acoustic cavity body structure according to claim 1, it is characterised in that: the separation layer (4) and baffle (10)
Between be equipped with two-sided rubber mat (11).
4. headphone acoustic cavity body structure according to claim 1, it is characterised in that: the groove (5) be arc groove or
Rectangular recess.
5. headphone acoustic cavity body structure according to claim 1, it is characterised in that: the upper part planar of the rear shell (3)
Edge is equipped with the positioning step that protrusion plane is used to install baffle (10).
6. headphone acoustic cavity body structure according to claim 1, it is characterised in that: the disc (1) includes bottom and bottom
The opening portion that portion upwardly extends, the internal edge of the opening portion are equipped with the installation step (12) for installing loudspeaker；It is described
The middle position of bottom is equipped with sound guide tube (13).
7. headphone acoustic cavity body structure according to claim 6, it is characterised in that: the edge of the bottom is equipped with the 4th
Venthole (14).
8. headphone acoustic cavity body structure according to claim 1, it is characterised in that: the cavity volume of part under the rear shell
It is 1.5 times or more of loudspeaker (2) volume.
9. headphone acoustic cavity body structure according to claim 7, it is characterised in that: the third venthole (8) and the 4th
Tuning material (15) are respectively equipped on venthole (14) and sound guide tube (13).
10. headphone acoustic cavity body structure according to claim 1, it is characterised in that: the loudspeaker (2) is raised for electrodynamic type
The edge of sound device, loudspeaker (2) is equipped with sound regulating hole (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821792750.7U CN208754511U (en) | 2018-11-01 | 2018-11-01 | A kind of headphone acoustic cavity body structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821792750.7U CN208754511U (en) | 2018-11-01 | 2018-11-01 | A kind of headphone acoustic cavity body structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208754511U true CN208754511U (en) | 2019-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821792750.7U Active CN208754511U (en) | 2018-11-01 | 2018-11-01 | A kind of headphone acoustic cavity body structure |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111445896A (en) * | 2020-06-02 | 2020-07-24 | 陈兴华 | Sound attribute adjusting device for sound wave pipeline transmission |
| CN112788472A (en) * | 2021-03-11 | 2021-05-11 | 维沃移动通信有限公司 | Earphone set |
| CN112929771A (en) * | 2021-02-05 | 2021-06-08 | 歌尔科技有限公司 | Sound cavity structure and sound box |
-
2018
- 2018-11-01 CN CN201821792750.7U patent/CN208754511U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111445896A (en) * | 2020-06-02 | 2020-07-24 | 陈兴华 | Sound attribute adjusting device for sound wave pipeline transmission |
| CN111445896B (en) * | 2020-06-02 | 2024-05-28 | 陈兴华 | Sound attribute adjusting device for sound wave pipeline transmission |
| CN112929771A (en) * | 2021-02-05 | 2021-06-08 | 歌尔科技有限公司 | Sound cavity structure and sound box |
| CN112929771B (en) * | 2021-02-05 | 2023-06-16 | 歌尔科技有限公司 | Acoustic cavity structure and sound box |
| CN112788472A (en) * | 2021-03-11 | 2021-05-11 | 维沃移动通信有限公司 | Earphone set |
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