CN207910967U - Ear canal earphone with air escape groove - Google Patents

Abstract

The utility model discloses an ear canal type earphone with a vent groove, which includes a shell and a speaker unit. The housing has a chamber, a sound outlet, a first vent hole and a vent groove. The vent groove extends on the outer surface of the housing and communicates with the first vent hole. The speaker unit is arranged in the cavity. The speaker unit divides the chamber into a front chamber and a rear chamber. The sound outlet and the first vent hole are connected to the front chamber.

Description

In-canal earphones with vent grooves

technical field

The utility model relates to an ear canal earphone, in particular to an ear canal earphone with a vent groove.

Background technique

With the continuous advancement of science and technology, all electronic products are developing towards the trend of lightweight and miniaturization. People can use miniaturized electronic products anytime and anywhere. In order to facilitate users to listen to the sound information provided by electronic products without disturbing others, earphones It has become a necessary accessory for electronic products. In addition, the earphone also provides better sound transmission for the listener, so that the listener can clearly hear and understand the sound content, unlike the unclear situation caused by the sound transmission in the air, and especially during the user's movement, For example, it will not be affected by sports, driving, intense activities or noisy environments.

At present, in the common ear canal earphones on the market, the sound output end of the casing is deeply placed in the outer ear of the user. The sound output end of the ear canal earphone is basically airtight to the outer ear of the user, so as to isolate the external sound and improve the sound quality. However, because this earphone has airtight characteristics, when the user plugs the eardrum into the outer ear, the air between the user's eardrum and the earphone will be compressed, resulting in a heavy pressure on the eardrum and an uncomfortable feeling. . At the same time, the diaphragm in the earphone is also deformed or even collapsed due to the gas pressure, resulting in a decrease in sound quality and seriously affecting the hearing comfort.

Utility model content

The purpose of the utility model is to provide an ear canal earphone with a vent groove, which solves the problems of uncomfortable wearing and poor sound quality existing in the existing earphones.

In order to achieve the above purpose, the ear canal earphone with vent groove of the present invention includes a housing and a speaker unit. The casing has a chamber, a sound outlet, a first air leak hole and a air leak groove. The air release groove extends on the outer surface of the housing and communicates with the first air release hole. The speaker unit is arranged in the chamber. The horn unit divides the chamber into a front chamber and a rear chamber. The sound outlet communicates with the first vent hole to the front chamber.

In an embodiment of the present invention, the above ear canal earphone further includes a microphone disposed in the front chamber and located between the sound outlet and the speaker unit.

In an embodiment of the present invention, the diameter of the above-mentioned microphone is less than or equal to 6mm.

In an embodiment of the present invention, the speaker unit described above divides the chamber into a front chamber and a rear chamber that are not ventilated to each other.

In an embodiment of the present utility model, the above-mentioned air release groove extends from the first air release hole toward the sound outlet.

In an embodiment of the present utility model, the above-mentioned air release groove extends from the first air release hole toward the rear chamber.

In an embodiment of the present invention, the above-mentioned ear canal earphone further includes an ear pad disposed outside the sound outlet of the casing.

In an embodiment of the present utility model, the above-mentioned casing also has a second vent hole, which communicates with the rear chamber.

In an embodiment of the present invention, the above-mentioned casing includes a front casing and a rear casing combined. The front chamber is located between the speaker unit and the front shell. The rear chamber is located between the speaker unit and the rear shell. The vent groove and the first vent hole are located on the front shell.

Based on the above, the utility model has the advantage that, in the ear canal earphone with air leakage groove, because the sound outlet and the first air leakage hole communicate with the front chamber, the air pressure between the earphone and the outer ear can pass through the first air leakage. hole release. In this way, the discomfort that the user may feel when wearing the earphone can be relieved, and the best sound quality can be provided.

In order to make the above-mentioned features and advantages of the present invention more comprehensible, the following specific examples are given together with the attached drawings for detailed description as follows.

Description of drawings

Fig. 1A is a three-dimensional schematic diagram of an ear canal earphone with a vent groove according to an embodiment of the present invention;

Fig. 1B is a schematic top view of the ear canal earphone in Fig. 1A;

Fig. 1C is a schematic cross-sectional view of the ear canal earphone in Fig. 1B along line A-A;

Fig. 2A is a three-dimensional schematic diagram of an ear canal earphone with a vent groove according to another embodiment of the present invention;

FIG. 2B is a schematic cross-sectional view of the ear canal earphone in FIG. 2A .

Symbol Description

100, 200: In-canal earphones with vent grooves

110: shell

112: Front shell

114: Rear shell

120: speaker unit

130: Microphone

140: Ear pads

C10: chamber

C12: front chamber

C14: back chamber

P10: Sound outlet

G10, G20: Discharge groove

A12: The first vent hole

A14: Second vent hole

S10: Outer surface of the housing

Detailed ways

Fig. 1A is a three-dimensional schematic view of an ear canal earphone with a vent groove according to an embodiment of the present invention, Fig. 1B is a schematic top view of the ear canal earphone in Fig. A schematic cross-sectional view of the earphone along the line A-A.

Please refer to FIG. 1A and FIG. 1B , the ear canal earphone 100 with air leakage groove of the present embodiment includes a housing 110 . The casing 110 has a first air release hole A12 and an air release groove G10 . The air release groove G10 extends on the outer surface S10 of the casing 110 and communicates with the first air release hole A12 .

Please refer to FIG. 1C , the ear canal earphone 100 of this embodiment further includes a speaker unit 120 . The casing 110 also has a chamber C10 and a sound outlet P10. The horn unit 120 is disposed in the chamber C10. The horn unit 120 divides the chamber C10 into a front chamber C12 and a rear chamber C14. The sound outlet P10 communicates with the first vent hole A12 to the front chamber C12.

When the ear canal earphone 100 of this embodiment is placed in the user's outer ear, the air between the user's eardrum and the speaker unit 120 is sequentially released by the sound outlet P10, the front chamber C12, and the first air leak hole A12. It leaks to the outside of the housing 110, and then to the outside world. Therefore, the user's eardrum will not feel uncomfortable due to being squeezed by air. In addition, the loudspeaker unit 120 will not be deformed by the air to cause sound distortion.

In addition, because the shape of each user's outer ear is different, when the ear canal earphone 100 is placed in the outer ear, some users' outer ear may cover the first vent hole A12. However, in addition to the first vent hole A12, the casing 110 of this embodiment also has a vent groove G10 communicating with the first vent hole A12. In this way, even if the shape of each user's outer ear is different, the probability that the entire air leakage groove G10 is covered by the user's outer ear is greatly reduced. Therefore, it is ensured that the air between the user's eardrum and the speaker unit 120 can be leaked out of the housing 110 through the sound outlet P10, the front chamber C12, the first air leak hole A12, and the air leak groove G10 in sequence. And then leaked to the outside world.

The reason why the ear canal earphone 100 of this embodiment is called the ear canal earphone 100 is that a part of the volume of the ear canal earphone 100 can be placed into the ear canal from the auricle, and the end of the ear canal is the tympanic membrane. Therefore, the speaker unit 120 can go deep into the ear canal and approach the eardrum, and only a small driving power is enough to meet the user's demand for volume. In addition, the speaker unit 120 and the housing 110 also prevent the transmission of ambient noise to the eardrum, thereby producing a passive anti-noise effect and improving sound fidelity.

The ear canal earphone 100 of this embodiment may further include a microphone 130 disposed in the front chamber C12 and located between the sound outlet P10 and the speaker unit 120 . In this way, the microphone 130 can go deep into the ear canal and approach the eardrum to detect sound waves transmitted in the ear canal. When the ear canal earphone 100 is worn on the user's ear and goes deep into the ear canal, the sound outlet P10 will face and be close to the tympanic membrane of the ear, and the speaker unit 120 and the shell 110 will prevent the ambient noise from being transmitted to the microphone 130, Therefore, a passive anti-noise effect is produced, and the fidelity of the microphone 130 when picking up sound can also be improved. In addition, because the microphone 130 is very close to the user's tympanic membrane, the sound waves generated by the vibration of the tympanic membrane caused by the user's speech can be sensitively detected and collected by the microphone 130. Sound passes into the ear canal and is picked up by the microphone 130 . Furthermore, due to the design of the first air leak hole A12 and the air leak groove G10 , it is also possible to prevent the microphone 130 from being affected by excessive air pressure to produce howling sound.

The average diameter of the human ear canal is greater than 8 mm, while the diameter of the microphone 130 in this embodiment is, for example, less than or equal to 6 mm, so the microphone 130 can go deep into the ear canal and approach the tympanic membrane.

In this embodiment, the speaker unit 120 is, for example, partitioning the chamber C10 into a front chamber C12 and a rear chamber C14 that are not ventilated to each other. Therefore, the speaker unit 120 can effectively prevent environmental noise from being transmitted from the rear chamber C14 to the microphone 130 . In addition, the air release groove G10 of this embodiment may extend from the first air release hole A12 toward the rear chamber C14. The portion of the air release groove G10 extending toward the rear chamber C14 is less likely to be covered by the user's inner ear, so it is easy to ensure a smooth air release channel. The air release groove G10 basically has a bottom, that is, the depth of the air release groove G10 is smaller than the thickness of the housing 110 where it is located, so as to avoid excessively increasing the possibility of external noise being introduced into the housing 110 . In addition, the ear canal earphone 100 of this embodiment may further include an ear pad 140 disposed outside the sound outlet P12 of the casing 110 . The elastic deformation of the ear pad 140 can adapt to the outer ear contours of different users, provide a comfortable wearing feeling, and isolate external sounds to improve sound quality.

The housing 110 of this embodiment includes a front shell 112 and a rear shell 114 combined. The front chamber C12 is located between the speaker unit 120 and the front shell 112 . The rear chamber C14 is located between the speaker unit 120 and the rear shell 114 . The air release groove G10 and the first air release hole A12 are located on the front shell 112 . The casing 110 adopts a two-piece design, and the main consideration is the ease of assembly process, but the present invention is not limited thereto. In addition, the casing 110 of this embodiment also has a second vent hole A14 communicating the rear chamber C14 with the outside world.

FIG. 2A is a schematic perspective view of an ear canal earphone with a vent groove according to another embodiment of the present invention, and FIG. 2B is a schematic cross-sectional view of the ear canal earphone of FIG. 2A . Please refer to FIG. 2A and FIG. 2B , the ear canal earphone 200 with the air leakage groove in this embodiment is substantially the same as the ear canal earphone 100 in FIG. 1C , and only the differences between the two will be described here. The vent groove G20 of this embodiment extends from the first vent hole A12 toward the sound outlet P10. In fact, how to extend the deflation groove G20 can be adjusted according to design requirements, as long as the possibility of the entire deflation groove G20 being covered by the user's inner ear can be reduced. In addition, if a part of the air release groove G20 extends to the part covered by the ear pad 140 , because the ear pad 140 is less likely to be deformed to fill the air release groove G20 , it also helps to keep the air release channel smooth.

To sum up, in the ear canal earphone with the vent groove of the present invention, the air pressure between the earphone and the outer ear can be released through the sound outlet, the front chamber and the first vent hole. In this way, the discomfort that the user may feel when wearing the earphone can be relieved, and the best sound quality can be provided. In addition, when the microphone is installed in the ear canal earphone, the problem of howling sound caused by the influence of air pressure on the microphone can also be avoided.

Although the utility model has been disclosed in conjunction with the above embodiments, it is not intended to limit the utility model, and anyone with ordinary knowledge in the technical field can make some changes without departing from the spirit and scope of the utility model and retouching, so the protection scope of the present utility model should be defined by the appended claims as the criterion.

Claims (9)

1. a kind of ear-canal earphones with the groove that loses heart, which is characterized in that should include with the ear-canal earphones for the groove that loses heart：

There is shell chamber, sound mouth, the first bleeder port and discouraged groove, the wherein groove that loses heart to extend the outer of the shell On surface and it is connected to first bleeder port；And

Horn single body is configured at the chamber, and wherein the chamber is divided into front chamber and rear chamber by the horn single body, the sound mouth It is connected to the front chamber with first bleeder port.

2. the ear-canal earphones with the groove that loses heart as described in claim 1, which is characterized in that should be with the ear for the groove that loses heart Road formula earphone further includes microphone, is configured at the front chamber, and between the sound mouth and the horn single body.

3. the ear-canal earphones with the groove that loses heart as claimed in claim 2, which is characterized in that the diameter of the microphone is less than Equal to 6mm.

4. the ear-canal earphones with the groove that loses heart as described in claim 1, which is characterized in that the horn single body is by the chamber It is divided into the front chamber and the rear chamber to not exchange information.

5. the ear-canal earphones with the groove that loses heart as described in claim 1, which is characterized in that this lose heart groove from this first Bleeder port extends towards the direction of the sound mouth.

6. the ear-canal earphones with the groove that loses heart as described in claim 1, which is characterized in that this lose heart groove from this first Bleeder port extends towards the direction of the rear chamber.

7. the ear-canal earphones with the groove that loses heart as described in claim 1, which is characterized in that should be with the ear for the groove that loses heart Road formula earphone further includes ear pad, is configured at outside the sound mouth of the shell.

8. the ear-canal earphones with the groove that loses heart as described in claim 1, which is characterized in that the shell also has second to let out Stomata is connected to the rear chamber.

9. the ear-canal earphones with the groove that loses heart as described in claim 1, which is characterized in that the shell includes being combined Front housing and rear shell, the front chamber are located between the horn single body and the front housing, which is located at the horn single body and the rear shell Between, which is located at the front housing with first bleeder port.