CN220629541U - In-ear earphone for improving low-frequency response by using passive module - Google Patents
In-ear earphone for improving low-frequency response by using passive module Download PDFInfo
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- CN220629541U CN220629541U CN202322170749.8U CN202322170749U CN220629541U CN 220629541 U CN220629541 U CN 220629541U CN 202322170749 U CN202322170749 U CN 202322170749U CN 220629541 U CN220629541 U CN 220629541U
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- 239000000463 material Substances 0.000 claims abstract description 15
- 238000004519 manufacturing process Methods 0.000 claims abstract description 4
- 238000013016 damping Methods 0.000 claims description 14
- 210000000613 ear canal Anatomy 0.000 claims description 8
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 230000026683 transduction Effects 0.000 description 2
- 238000010361 transduction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
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Abstract
The utility model discloses an in-ear earphone for improving low-frequency response by using a passive module, which comprises the following components: the earphone comprises an earphone shell, wherein the earphone shell is provided with an acoustic rear cavity and an auditory canal, the acoustic rear cavity is provided with a plurality of first cavities for installing sounding units, each first cavity is communicated with a first channel, and a sounding unit wave guide tube is arranged in each first channel; the acoustic rear cavity is provided with a second cavity for installing the passive module, the second cavity is communicated with a second channel, and a passive module wave guide tube is installed in the second channel; the principle of the utility model is that when sound is emitted from the sound generating unit and transmitted into the auditory canal, a pressure difference between the auditory canal and the inner structure of the passive module wave guide tube is generated, the pressure difference promotes the sound generating plane material layer in the passive module to generate sound, and the utility model has simple design, easy manufacture, no need of extra power consumption and energy consumption, and is very suitable for small portable audio equipment.
Description
Technical Field
The utility model relates to the technical field of earphones, in particular to an in-ear earphone for improving low-frequency response by using a passive module.
Background
In-ear headphones often do not produce an effective low frequency response due to their small size, resulting in a reduced sound quality, and conventional solutions improve the low frequency response by increasing the number of bass units or improving the driving force of the units, but such solutions not only still have space limitations, but also require larger power and energy consumption.
Therefore, there is a need to design a new in-ear earphone based on passive module design, which not only can improve the intermediate frequency or low frequency response for a specific frequency band through acoustic coupling design; and the in-ear earphone with lower input power and low transduction efficiency can effectively improve transduction efficiency and frequency band response without additional increase of power consumption and energy consumption, and the original sound structure design target is better achieved.
Disclosure of Invention
In view of the above, the present utility model provides an in-ear earphone that improves low frequency response using a passive module.
In order to achieve the above purpose, the present utility model adopts the following technical scheme: an in-ear headphone for improving low frequency response using a passive module, comprising: the earphone comprises an earphone shell, a sound generating unit and a passive module, wherein the earphone shell is provided with an acoustic rear cavity and an auditory canal; the acoustic rear cavity is provided with a plurality of first cavities for installing sound generating units, each first cavity is communicated with a first channel, and a sound generating unit wave guide tube is arranged in each first channel; the acoustic rear cavity is provided with a second cavity for installing the passive module, the second cavity is communicated with a second channel, and a passive module wave guide tube is installed in the second channel; the plurality of sound generating unit wave guide tubes and the passive module wave guide tube are communicated with the inside of the auditory canal.
As a preferable scheme of the utility model, the passive module comprises a sound-producing plane material layer, wherein the sound-producing plane material layer is arranged in the second cavity and is connected with the passive module wave guide tube, and the sound-producing plane material layer is driven to produce sound through the pressure difference in the passive module wave guide tube.
As a preferred embodiment of the present utility model, the method further comprises: and acoustic damping is arranged at one of the first cavities.
As a preferred embodiment of the present utility model, the method further comprises: and the acoustic damping is arranged in the rear cavity of the second cavity.
In a preferred embodiment of the present utility model, the acoustic damping is mesh cloth.
As a preferred embodiment of the present utility model, the method further comprises: and a pressure difference hole.
In a preferred embodiment of the present utility model, the pressure difference hole is formed in the acoustic rear cavity, and the pressure difference hole is at least communicated with the acoustic unit waveguide.
As a preferred embodiment of the present utility model, the method further comprises: the pressure relief hole is formed in the acoustic rear cavity and communicated with the second cavity.
Compared with the prior art, the utility model has the following beneficial technical effects: the passive module comprises the passive module wave guide tube and the sound emitting plane material layer, the sound emitting plane material layer is arranged in the second cavity and connected with the passive module wave guide tube, and the sound emitting plane material layer is driven to emit sound through the pressure difference in the passive module wave guide tube.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present utility model, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of an earphone housing in an in-ear earphone utilizing a passive module to improve low frequency response in accordance with the present utility model;
FIG. 2 is another schematic view of the earphone housing of the in-ear earphone for improving the low frequency response by using the passive module according to the present utility model;
FIG. 3 is a schematic diagram of an in-ear earphone of the present utility model utilizing a passive module to improve the low frequency response;
fig. 4 is a schematic diagram of an in-ear earphone of the present utility model utilizing a passive module to improve the low frequency response.
Reference numerals illustrate:
a headphone housing 100; a first cavity 101; a first channel 102; a second cavity 104; a second channel 105; an acoustic rear cavity 110; an ear canal 120; acoustic damping 130; a pressure difference hole 140; pressure relief vent 150.
Detailed Description
The utility model will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic representations which merely illustrate the basic structure of the utility model and therefore show only the structures which are relevant to the utility model.
An in-ear earphone for improving low frequency response by using a passive module, as shown in fig. 1-4, comprises: the earphone housing 100, the earphone housing 100 is configured with an acoustic rear cavity 110 and an ear canal 120, and a sound generating unit and a passive module are installed in the earphone housing 100.
In the earphone housing 100 in fig. 1, the earphone front cover is not shown, and the earphone front cover is disposed at the earphone housing 100 to form an earphone with a complete appearance.
The acoustic rear cavity 110 is provided with a plurality of first cavities 101 for installing sound generating units, each first cavity 101 is communicated with a first channel 102, and a sound generating unit wave guide pipe is installed in each first channel 102;
the acoustic rear cavity 101 is provided with a second cavity 104 for installing a passive module, the second cavity 104 is communicated with a second channel 105, and a passive module wave guide tube is installed in the second channel 105;
the plurality of sound unit waveguides and the passive module waveguide communicate with the interior of the ear canal 120.
As shown in fig. 1, the first cavity 101 and the second cavity 104 are both of a sinking cavity structure, and the sound generating unit may refer to a moving coil sound generating unit, although the specific structure of the moving coil sound generating unit is not shown in fig. 1, it should be known to those skilled in the art that the moving coil sound generating unit is the most common and most common earphone generating unit, its driving unit is basically a small moving coil speaker, the voice coil in the permanent magnetic field drives the diaphragm connected with the driving unit to vibrate, the coil drives the diaphragm to generate sound under the driving of the signal current, and most of the moving coil earphone can be the earphone output driving on the sound, and the moving coil earphone is reliable and durable, relatively easy to manufacture, low in distortion and wide in frequency response.
Further, the passive module includes a passive module waveguide and a sounding plane material layer, the sounding plane material layer is mounted in the second cavity 104 and connected with the passive module waveguide, and the sounding plane material layer is caused to sound by the pressure difference in the passive module waveguide, which is based on the principle that when sound is emitted from the sounding unit and transmitted into the ear canal 120, a pressure difference between the ear canal 120 and the passive module waveguide is generated when one of the waveguides is connected, and the pressure difference causes the sounding plane material layer in the passive module to sound.
The passive module gathers the sounding unit wave guide pipes of the other three sounding units through the passive module wave guide pipe so as to improve the low-frequency response.
Furthermore, the sounding principle of the passive module is based on the pressure difference and the acoustic resonance principle, so that the low-frequency response of the in-ear earphone can be effectively improved.
Further, the sound generating unit wave guide pipe and the passive module wave guide pipe are respectively made of an integrally formed type and communicated with the outside.
Further, the lengths and shapes of the sounding unit wave guide pipe and the passive module wave guide pipe are calculated and are coupled with the sounding unit.
In one real-time manner, the method further comprises: acoustic damping 130, acoustic damping 130 is mounted at one of the first cavities 101 and/or acoustic damping 130 is mounted at the rear cavity of the second cavity 104.
The acoustic damping 130 is a mesh and is used to coordinate the pressure between the cavity and the ear canal, and in this embodiment, the acoustic damping 130 is attached to the rear cavity of the second cavity 104 to improve the low frequency response.
In one real-time manner, the method further comprises: the pressure difference hole 140 and the pressure relief hole 150, the pressure difference hole 140 is formed in the acoustic rear cavity 110, the pressure difference hole 140 is at least communicated with the sound generating unit waveguide, the pressure relief hole 150 is formed in the acoustic rear cavity 110, the pressure relief hole 150 is communicated with the second cavity 104, and the pressure difference hole 140 and the pressure relief hole 150 are all communicated with the outside.
The sounding surface material layer is installed in the second cavity 104 by two stainless steel cylindrical workshop clamping configurations, and sounding is performed through a pressure difference hole 140 and a passive module wave guide pipe and a pressure relief hole 150 arranged in the structure.
The utility model has simple design, easy manufacture, no need of extra power consumption and energy consumption, and is very suitable for small portable audio equipment.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. An in-ear headphone for improving low frequency response using a passive module, comprising: earphone casing (100), earphone casing (100) are constructed with acoustic back chamber (110) and ear canal (120), its characterized in that: a sound generating unit and a passive module are arranged in the earphone shell (100);
the acoustic rear cavity (110) is provided with a plurality of first cavities (101) for installing sound generating units, each first cavity (101) is communicated with a first channel (102), and a sound generating unit wave guide tube is installed in each first channel (102);
the acoustic rear cavity (110) is provided with a second cavity (104) for installing a passive module, the second cavity (104) is communicated with a second channel (105), and a passive module wave guide tube is installed in the second channel (105);
the plurality of sound unit wave guides and the passive module wave guides are in communication with the interior of the ear canal (120).
2. An in-ear headphone for improving low frequency response using a passive module as claimed in claim 1, wherein: the passive module comprises a sound-producing plane material layer, the sound-producing plane material layer is arranged in the second cavity (104) and connected with the passive module wave guide tube, and the sound production of the sound-producing plane material layer is promoted by the pressure difference in the passive module wave guide tube.
3. An in-ear headphone for improving low frequency response using a passive module as claimed in claim 1, wherein: further comprises: and acoustic damping (130), wherein the acoustic damping (130) is arranged at one of the first cavities (101).
4. An in-ear headphone for improving low frequency response using a passive module as claimed in claim 1, wherein: further comprises: and the acoustic damping (130), the acoustic damping (130) is installed in the rear cavity of the second cavity (104).
5. An in-ear headphone for improving low frequency response using passive modules as claimed in claim 3 or 4, wherein: the acoustic damping (130) is a mesh.
6. An in-ear headphone for improving low frequency response using a passive module as claimed in claim 1, wherein: further comprises: a pressure differential orifice (140).
7. An in-ear headphone for improving low frequency response using a passive module as claimed in claim 6, wherein: the pressure difference hole (140) is formed in the acoustic rear cavity (110), and the pressure difference hole (140) is at least communicated with the sound generating unit wave guide tube.
8. An in-ear headphone for improving low frequency response using a passive module as claimed in claim 1, wherein: further comprises: the pressure relief hole (150), pressure relief hole (150) are offered in acoustical back chamber (110) department, and pressure relief hole (150) and second cavity (104) intercommunication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322170749.8U CN220629541U (en) | 2023-08-14 | 2023-08-14 | In-ear earphone for improving low-frequency response by using passive module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322170749.8U CN220629541U (en) | 2023-08-14 | 2023-08-14 | In-ear earphone for improving low-frequency response by using passive module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220629541U true CN220629541U (en) | 2024-03-19 |
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ID=90216823
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322170749.8U Active CN220629541U (en) | 2023-08-14 | 2023-08-14 | In-ear earphone for improving low-frequency response by using passive module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220629541U (en) |
-
2023
- 2023-08-14 CN CN202322170749.8U patent/CN220629541U/en active Active
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