CN209693010U - A kind of earphone cavity body structure with amplifying tube structure - Google Patents
A kind of earphone cavity body structure with amplifying tube structure Download PDFInfo
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- CN209693010U CN209693010U CN201921059955.9U CN201921059955U CN209693010U CN 209693010 U CN209693010 U CN 209693010U CN 201921059955 U CN201921059955 U CN 201921059955U CN 209693010 U CN209693010 U CN 209693010U
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Abstract
The utility model relates to ear phone technology fields, specially a kind of earphone cavity body structure with amplifying tube structure, shell including connecting earphone cable, the side wall of the shell is plugged with grafting cylinder, grafting cylinder is fixedly attached the clamping ring for inserting the earplug into limit far from one end of shell, and the inner wall of the grafting cylinder is equipped with for by the audio-amplification structure of sound dispersion.Sound is by airborne, the sound of earphone transmission is entered sound chamber and is squeezed into sound transmission aperture, the air being extruded is radiate by sound transmission aperture, since sound transmission aperture reduces relative to the thick section diameter for entering sound chamber, airflow interface agent becomes smaller, so that sound enters the increase of the flow velocity in sound transmission aperture, improve the radiation impedance of vibrating diaphragm, improve acoustic radiation efficiency, to which sound enters the intracavitary diffusion that amplifies, the dispersion of sound is reduced, the loudness of sound is increased, to promote the effect of earphone, there is very strong practicability.
Description
Technical field
The utility model relates to ear phone technology field, specially a kind of earphone cavity body structure with amplifying tube structure.
Background technique
In-Ear Headphones are increasingly by the welcome for listening to the public, especially as the surge of Miniature digital media player.Its
Due to small size and low-profile and be convenient, and cost is substantially below biggish lid aural headphone, and earphone generally all covers
Equipped with an earplug, earplug is made of silica gel, and feel is more soft, and extending force is strong, and extremely durable, so human ear is worn
Feel as snug as a bug in a rug, still, existing earphone sound outlet hole is mostly straight barrel type, the diffusion for being unfavorable for sound of straight barrel type, for this purpose, I
Propose a kind of earphone cavity body structure with amplifying tube structure.
Utility model content
The purpose of this utility model is to provide a kind of earphone cavity body structures with amplifying tube structure, to solve above-mentioned back
The problem of being proposed in scape technology.
To achieve the above object, the utility model provides the following technical solutions:
A kind of earphone cavity body structure with amplifying tube structure, the shell including connecting earphone cable, the side wall of the shell
It is plugged with grafting cylinder, grafting cylinder is fixedly attached the clamping ring for inserting the earplug into limit far from one end of shell, described to insert
The inner wall of connect cylinder is equipped with for by the audio-amplification structure of sound dispersion.
Preferably, the audio-amplification structure is the cylindrical body for being connected to grafting cylinder inner wall, and the both ends of cylindrical body offer
Rotary table type hole, two rotary table type holes are connected by being provided with the intracorporal sound transmission aperture of cylinder, close to the rotary table type hole shape of grafting cylinder
At sound chamber is entered, the rotary table type hole far from grafting cylinder forms the chamber that amplifies.
Preferably, it is described enter sound chamber height be much smaller than the height of chamber of amplifying.
Preferably, it is identical with grafting cylinder to be located at one section of length of shell exterior for the length of the audio-amplification structure.
Compared with prior art, the utility model has the beneficial effects that this has the earphone cavity body structure of amplifying tube structure,
The sound of earphone transmission enters from sound chamber is entered, and transmits through sound transmission aperture, and to the intracavitary diffusion that amplifies, the chamber that amplifies is in horn-like structure, sound
Sound is by airborne, and the sound of earphone transmission is entered sound chamber and is squeezed into sound transmission aperture, and the air being extruded passes through transaudient
Hole is radiate, and since sound transmission aperture reduces relative to the thick section diameter for entering sound chamber, airflow interface agent becomes smaller, so that sound enters biography
Flow velocity in acoustic aperture increases, and improves the radiation impedance of vibrating diaphragm, that is, improves acoustic radiation efficiency, so that sound is intracavitary into amplifying
Diffusion, reduces the dispersion of sound, increases the loudness of sound, to promote the effect of earphone, has very strong practicability.
Detailed description of the invention
FIG. 1 is a schematic structural view of the utility model；
Fig. 2 is Fig. 1 schematic diagram of internal structure.
In figure: shell 1, clamping ring 21, audio-amplification structure 3, enters that sound chamber 31, sound transmission aperture 32, amplify chamber 33 at grafting cylinder 2.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
The utility model provides a kind of technical solution referring to FIG. 1-2:
The side wall of a kind of earphone cavity body structure with amplifying tube structure, the shell 1 including connecting earphone cable, shell 1 is inserted
It is connected to grafting cylinder 2, grafting cylinder 2 is fixedly attached the clamping ring 21 for inserting the earplug into limit, grafting far from one end of shell 1
The inner wall of cylinder 2 is equipped with for by the audio-amplification structure 3 of sound dispersion.
Audio-amplification structure 3 is the cylindrical body for being connected to 2 inner wall of grafting cylinder, and the both ends of cylindrical body offer rotary table type hole,
Two rotary table type holes are connected by being provided with the intracorporal sound transmission aperture 32 of cylinder, and the rotary table type hole close to grafting cylinder 2 is formed into sound
Chamber 31, the rotary table type hole far from grafting cylinder 2 form the chamber 33 that amplifies, and the height for entering sound chamber 31 is much smaller than the height for the chamber 33 that amplifies, and have
Conducive to the diffusion of sound, it is identical that the length of audio-amplification structure 3 with grafting cylinder 2 is located at one section of length outside shell 1.
This has the earphone cavity body structure of amplifying tube structure, and the sound of earphone transmission enters from sound chamber 31 is entered, through sound transmission aperture
32 transmission, to the chamber 33 that amplifies in spread, the chamber 33 that amplifies be in horn-like structure, sound be by airborne, earphone transmission
Sound is entered sound chamber 31 and is squeezed into sound transmission aperture 32, and the air being extruded is radiate by sound transmission aperture 32, due to sound transmission aperture 32
Reducing relative to the thick section diameter for entering sound chamber 31, airflow interface agent becomes smaller, so that sound enters the increase of the flow velocity in sound transmission aperture 32,
The radiation impedance for improving vibrating diaphragm, that is, improve acoustic radiation efficiency, so that sound enters diffusion in the chamber 33 that amplifies, reduces sound
Dispersion, increase the loudness of sound, to promote the effect of earphone, there is very strong practicability.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (4)
1. a kind of earphone cavity body structure with amplifying tube structure, the shell (1) including connecting earphone cable, it is characterised in that: institute
The side wall for stating shell (1) is plugged with grafting cylinder (2), and grafting cylinder (2) has been fixedly attached far from the one end of shell (1) for by earplug
It is inserted into the clamping ring (21) of limit, the inner wall of the grafting cylinder (2) is equipped with for by the audio-amplification structure (3) of sound dispersion.
2. a kind of earphone cavity body structure with amplifying tube structure according to claim 1, it is characterised in that: described to amplify
Structure (3) is the cylindrical body for being connected to grafting cylinder (2) inner wall, and the both ends of cylindrical body offer rotary table type hole, two rotary tables
Type hole is connected by being provided with the intracorporal sound transmission aperture of cylinder (32), and the rotary table type hole close to grafting cylinder (2) is formed into sound chamber
(31), the rotary table type hole formation far from grafting cylinder (2) amplifies chamber (33).
3. a kind of earphone cavity body structure with amplifying tube structure according to claim 2, it is characterised in that: it is described enter sound
The height of chamber (31) is much smaller than the height for chamber (33) that amplify.
4. a kind of earphone cavity body structure with amplifying tube structure according to claim 2, it is characterised in that: described to amplify
The length of structure (3) is identical as one section of the length that grafting cylinder (2) is located at shell (1) outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921059955.9U CN209693010U (en) | 2019-07-09 | 2019-07-09 | A kind of earphone cavity body structure with amplifying tube structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921059955.9U CN209693010U (en) | 2019-07-09 | 2019-07-09 | A kind of earphone cavity body structure with amplifying tube structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209693010U true CN209693010U (en) | 2019-11-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201921059955.9U Active CN209693010U (en) | 2019-07-09 | 2019-07-09 | A kind of earphone cavity body structure with amplifying tube structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022000920A1 (en) * | 2020-06-29 | 2022-01-06 | 歌尔股份有限公司 | Head-mounted display device and head-mounted display assembly |
-
2019
- 2019-07-09 CN CN201921059955.9U patent/CN209693010U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022000920A1 (en) * | 2020-06-29 | 2022-01-06 | 歌尔股份有限公司 | Head-mounted display device and head-mounted display assembly |
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