CN212086461U

CN212086461U - In-ear earphone

Info

Publication number: CN212086461U
Application number: CN202021251049.1U
Authority: CN
Inventors: 梁磊; 孙淑娟
Original assignee: Goertek Techology Co Ltd
Current assignee: Goertek Techology Co Ltd
Priority date: 2020-06-30
Filing date: 2020-06-30
Publication date: 2020-12-04
Anticipated expiration: 2030-06-30

Abstract

The utility model discloses an in-ear earphone, which comprises a shell, a loudspeaker and a pressure relief component; wherein an inner cavity is formed inside the shell; the loudspeaker is arranged in the inner cavity of the shell and divides the inner cavity into a front sound cavity and a rear sound cavity; the pressure relief assembly includes a pressure relief valve and a pressure relief passage. The pressure release valve is arranged in the rear sound cavity; one end of the pressure relief channel is connected with the pressure relief valve, and the other end of the pressure relief channel is communicated with the front sound cavity. The utility model discloses an in-ear earphone can improve the comfort level that this in-ear earphone wore.

Description

In-ear earphone

Technical Field

The utility model relates to an earphone technical field, in particular to in-ear earphone.

Background

In-ear headphones currently on the market, after being worn in the ear canal of a user for a long time, form a closed cavity in the ear canal. In-process that the earphone used, can extrude the gas in this closed cavity during the vibrating diaphragm vibrations of earphone for atmospheric pressure in this closed cavity crescent, the inside and outside pressure differential of earphone also corresponding increase, and then the ear that leads to earphone wearer can feel painful, greatly reduces the comfort level of earphone.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an in-ear earphone aims at improving the comfort level that this in-ear earphone wore.

In order to achieve the above object, the present invention provides an in-ear earphone, which includes a housing, a speaker and a pressure relief assembly; wherein an inner cavity is formed inside the shell; the loudspeaker is arranged in the inner cavity of the shell and divides the inner cavity into a front sound cavity and a rear sound cavity; the pressure relief assembly includes a pressure relief valve and a pressure relief passage. The pressure release valve is arranged in the rear sound cavity; one end of the pressure relief channel is connected with the pressure relief valve, and the other end of the pressure relief channel is communicated with the front sound cavity.

Optionally, the pressure relief assembly further comprises an air pressure sensor, the air pressure sensor is arranged in the front acoustic cavity, and the air pressure sensor is connected with the pressure relief valve.

Optionally, the front end of the housing is configured with a sound outlet channel communicated with the front sound cavity, the sound outlet channel has a cross section smaller than that of the front sound cavity, and a step surface is formed between the sound outlet channel and the front sound cavity; the air pressure sensor is arranged on the step surface.

Optionally, the speaker includes a speaker body and a speaker bracket for mounting the speaker body, and the speaker bracket is provided with a front pressure relief hole; the front sound cavity is communicated with the pressure relief channel through the front pressure relief hole.

Optionally, the speaker bracket includes a main body portion for mounting the speaker body, and a mounting portion located around the main body portion and fixedly connected to the housing; the loudspeaker support is characterized in that the mounting part is provided with the front pressure relief hole.

Optionally, the aperture of the front pressure relief hole ranges from 0.3mm to 0.5 mm.

Optionally, a back pressure relief hole is formed in the side wall of the back sound cavity, and the back pressure relief hole communicates the back sound cavity with the external environment.

Optionally, the diameter of the back pressure relief hole ranges from 0.3mm to 0.5 mm.

Optionally, the pressure relief passage is a pressure relief air tube.

Optionally, the pipe diameter of the pressure relief air pipe ranges from 0.3mm to 0.5 mm.

According to the technical scheme of the utility model, the pressure relief component is configured on the shell of the in-ear earphone and comprises a pressure relief valve and a pressure relief channel, wherein the pressure relief valve is arranged in the back sound cavity; one end and the relief valve intercommunication of pressure release passageway, pressure release passageway's the other end and preceding vocal cavity intercommunication to when the inside and outside atmospheric pressure difference of in-ear earphone is great, through opening the relief valve, make pressure release passageway switched on, and then the pressure differential of balanced preceding vocal cavity and back vocal cavity effectively reduces the inside and outside pressure differential of earphone, so can avoid the painful sense of producing of wearer's ear, effectively improves in-ear earphone's comfort level.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an embodiment of the in-ear headphone of the present invention.

The reference numbers illustrate:

the purpose of the present invention is to provide a novel and improved method and apparatus for operating a computer.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

Referring to fig. 1, the present invention provides an embodiment of an in-ear headphone, which may be a TWS (full called True Wireless Stereo) headphone or a general headphone. In an embodiment of the in-ear headphone, the in-ear headphone comprises a housing 100, a speaker 200 and a speaker. Wherein, an inner cavity is formed inside the housing 100; the speaker 200 is disposed in the inner cavity of the casing 100 and divides the inner cavity into a front sound chamber 110 and a rear sound chamber 120; the pressure relief assembly 300 includes a pressure relief valve 310 and a pressure relief channel 320, wherein the pressure relief valve 310 is disposed within the rear acoustic chamber 120; one end of the pressure relief passage 320 is connected to the pressure relief valve 310, and the other end of the pressure relief passage 320 is communicated with the front acoustic chamber 110.

Specifically, the front end of the casing 100 is configured with a sound outlet channel 130 communicating with the front sound chamber 110, and an ear muff 400 is connected to the outer end of the sound outlet channel 130, through which ear muff 400 the in-ear earphone is inserted into the ear canal of the wearer, thereby forming a closed cavity between the in-ear earphone and the ear canal.

When the in-ear earphone works, the sound generated by the speaker body 210 is transmitted to the ear canal of the wearer through the front sound cavity 110 and the sound outlet channel 130 in sequence. In this process, the diaphragm of the speaker body 210 vibrates to press the air in the closed cavity, so that the air pressure in the closed cavity is increased, and the air pressure difference between the inside and the outside of the in-ear earphone is increased. When the air pressure rises to a certain pressure value or the ear canal of the wearer feels uncomfortable, the pressure release valve 310 can be opened, and the pressure release channel 320 is communicated, so that the front sound cavity 110 is communicated with the rear sound cavity 120, the pressure difference between the front sound cavity 110 and the rear sound cavity 120 is balanced, the pressure difference inside and outside the earphone is effectively reduced, and the ear pain of the wearer can be avoided.

After the internal and external pressures of the in-ear earphone are balanced, the pressure release valve 310 is closed, the pressure release channel 320 is closed, and the front acoustic cavity 110 and the rear acoustic cavity 120 are separated, so that the air pressure in the front acoustic cavity 110 is kept stable, and the sound generated by the speaker body 210 is effectively transmitted to the ear canal. For the specific structure of the pressure release valve 310, it is common in the current market, and the pressure release valve with the corresponding specification can be selected for use. As for the way of opening and closing the relief valve 310, it may be automatically opened by pressure detection or manually opened by the user sensing the pressure change of the ear canal. As will be described in more detail below.

According to the technical scheme of the utility model, the pressure relief assembly 300 is configured on the shell 100 of the in-ear earphone, the pressure relief assembly 300 comprises a pressure relief valve 310 and a pressure relief channel 320, wherein the pressure relief valve 310 is arranged in the rear sound cavity 120; one end and the relief valve 310 of pressure release channel 320 are connected, the other end and the preceding vocal cavity 110 intercommunication of pressure release channel 320 to when the inside and outside atmospheric pressure difference of in-ear earphone is great, through opening relief valve 310, make pressure release channel 320 switched on, and then the pressure differential of balanced preceding vocal cavity 110 and back vocal cavity 120 effectively reduces the inside and outside pressure differential of earphone, so can avoid the ear of the person of wearing to produce painful sense, effectively improve the comfort level of in-ear earphone.

In one embodiment, the pressure relief assembly 300 further comprises an air pressure sensor 330, the air pressure sensor 330 is disposed in the front acoustic cavity 110, and the air pressure sensor 330 is connected to the pressure relief valve 310. The air pressure sensor 330 is used for detecting the air pressure in the front acoustic cavity 110, the specific structure of the air pressure sensor 330 is common in the market at present, and the air pressure sensor 330 with the corresponding specification can be selected for use. The air pressure sensor 330 transmits the detected air pressure signal to the pressure release valve 310, and the controller of the pressure release valve 310 determines whether to open the pressure release valve 310 according to the received air pressure signal. That is, the in-ear earphone automatically opens and closes the relief valve 310 according to the magnitude of the air pressure detected by the air pressure sensor 330.

Specifically, the controller of the pressure relief valve 310 has a first threshold and a second threshold pre-stored; when the controller of the pressure release valve 310 determines that the air pressure value corresponding to the received air pressure signal is equal to or greater than the first threshold, the controller controls the valve of the pressure release valve 310 to open, so that the pressure release channel 320 is conducted, and the front acoustic cavity 110 releases pressure; when the controller of the pressure release valve 310 determines that the air pressure value corresponding to the received air pressure signal is smaller than the second threshold, the controller controls the valve of the pressure release valve 310 to close, so that the pressure release channel 320 is closed, and the pressure release of the front acoustic cavity 110 is completed. Wherein the second threshold may be less than or equal to the second threshold.

Of course, in addition to the above-described embodiment of automatically opening pressure relief valve 310, in other embodiments, the in-ear headphone may manually open and close pressure relief valve 310. For example, a switch button electrically connected to the pressure release valve 310 is disposed on the housing 100, and when the wearer feels the ear canal uncomfortable, the wearer can manually press the switch button to open the pressure release valve 310 for pressure release; after the pressure relief is finished, the switch button is manually pressed to close the pressure relief valve 310.

In one embodiment, since the front end of the housing 100 is configured with the sound emitting passage 130 communicating with the front sound chamber 110, and the sound emitting passage 130 has a cross section smaller than that of the front sound chamber 110, a step surface 103 is formed between the sound emitting passage 130 and the front sound chamber 110; therefore, the air pressure sensor 330 may be optionally mounted on the step surface 103, so that an additional mounting structure for mounting the air pressure sensor 330 may not be required.

In one embodiment, the speaker 200 includes a speaker body 210 and a speaker holder 220 for mounting the speaker body 210, the speaker holder 220 is provided with a front pressure relief hole 101; the front acoustic chamber 110 communicates with the pressure relief channel 320 through the front pressure relief hole 101. Specifically, the speaker holder 220 is fixedly coupled to the housing 100, and the speaker body 210 is mounted in the middle of the speaker holder 220. The front pressure relief hole 101 is formed in the speaker holder 220 instead of the front pressure relief hole 101 formed in the speaker body 210, so that the parts such as a diaphragm of the speaker body 210 can be prevented from being damaged, and the normal use of the speaker function of the speaker body 210 is ensured.

Optionally, the speaker bracket 220 includes a main body portion for mounting the speaker body 210 and a mounting portion located around the main body portion and fixedly connected to the housing 100; the speaker holder 220 is provided with a front pressure release hole 101 in the mounting portion. The main body of the speaker holder 220 is located in the central region thereof, and the mounting portion around the speaker holder 220 is fixedly connected to the housing 100. Because the installation part is relatively far away from the main body part, sound generated by the loudspeaker body 210 on the main body part is not easy to leak out from the front pressure relief hole 101, and sound leakage is reduced.

As for the aperture range of the front pressure relief hole 101, the aperture range of the front pressure relief hole 101 is optionally 0.3mm to 0.5mm, and specifically, but not limited to: 0.3mm, 0.35mm, 0.4mm, 0.45mm, 0.5mm, etc. If the aperture of the front pressure relief hole 101 is smaller than 0.1mm, the front pressure relief hole 101 is too small, so that air is not easy to pass through the front pressure relief hole 101, and the pressure difference between the front sound cavity 110 and the rear sound cavity 120 is not easy to balance; if the aperture of preceding pressure release hole 101 is greater than 0.5mm, then preceding pressure release hole 101 is too big, and this preceding pressure release hole 101 occupies great space, and then can limit the installation space of speaker body 210 that contracts, is unfavorable for the micro-design of in-ear earphone. Therefore, the diameter of the front pressure release hole 101 is preferably kept in the range of 0.3mm to 0.5 mm.

In one embodiment, the side wall of the rear acoustic cavity 120 is opened with a back pressure relief hole 102, and the back pressure relief hole 102 connects the rear acoustic cavity 120 with the external environment. The back pressure relief vent 102 is used to balance the pressure difference between the back acoustic cavity 120 and the external environment to further reduce the pressure difference between the inside and outside of the in-ear headphone, increasing the comfort of the in-ear headphone.

As for the aperture range of the back pressure relief hole 102, the aperture range of the back pressure relief hole 102 is optionally 0.3mm to 0.5mm, and may specifically be, but is not limited to: 0.3mm, 0.35mm, 0.4mm, 0.45mm, 0.5mm, etc. If the aperture of the back pressure relief hole 102 is smaller than 0.1mm, the back pressure relief hole 102 is too small, so that air is not easy to pass through the back pressure relief hole 102, and the pressure difference between the back sound cavity 120 and the external environment is not easy to balance; if the diameter of the back pressure relief hole 102 is larger than 0.5mm, the back pressure relief hole 102 is too large, and the back pressure relief hole 102 occupies a large area of the outer surface of the casing 100, thereby easily damaging the integrity of the outer surface of the casing 100. Therefore, the diameter of the back pressure relief hole 102 is preferably kept in the range of 0.3mm to 0.5 mm.

In any of the above embodiments, the pressure relief channel 320 is a pressure relief air tube, and may be a channel structure formed on the speaker holder 220. Specifically, the pressure relief passage 320 is a pressure relief air tube. As for the pipe diameter range of the pressure relief air pipe, the pipe diameter range of the pressure relief air pipe can be reasonably designed according to the size of the front pressure relief hole 101, and if optional, the pipe diameter range of the pressure relief air pipe is 0.3 mm-0.5 mm, and specifically, but not limited to: 0.3mm, 0.35mm, 0.4mm, 0.45mm, 0.5mm, etc.

The above only be the preferred embodiment of the utility model discloses a not consequently restriction the utility model discloses a patent range, all are in the utility model discloses a conceive, utilize the equivalent structure transform of what the content was done in the description and the attached drawing, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.

Claims

1. An in-ear headphone, comprising:

the device comprises a shell, a first fixing piece and a second fixing piece, wherein an inner cavity is formed inside the shell;

the loudspeaker is arranged in the inner cavity of the shell and divides the inner cavity into a front sound cavity and a rear sound cavity; and

the pressure relief assembly comprises a pressure relief valve and a pressure relief channel; wherein the pressure relief valve is arranged in the rear sound cavity; one end of the pressure relief channel is connected with the pressure relief valve, and the other end of the pressure relief channel is communicated with the front sound cavity.

2. The in-ear headphone of claim 1, the pressure relief assembly further comprising an air pressure sensor disposed in the front acoustic cavity, the air pressure sensor coupled to the pressure relief valve.

3. The in-ear headphone of claim 2, wherein the front end of the housing is configured with a sound outlet channel communicating with the front sound chamber, the sound outlet channel having a cross-section smaller than the cross-section of the front sound chamber, a step surface being formed between the sound outlet channel and the front sound chamber; the air pressure sensor is arranged on the step surface.

4. An in-ear headphone as claimed in any one of claims 1 to 3, wherein the speaker comprises a speaker body, and a speaker holder for mounting the speaker body, the speaker holder being provided with a front pressure relief vent; the front sound cavity is communicated with the pressure relief channel through the front pressure relief hole.

5. The in-ear headphone of claim 4, wherein the speaker holder includes a main body portion for mounting the speaker body and a mounting portion located around the main body portion and fixedly connected to the housing; the loudspeaker support is characterized in that the mounting part is provided with the front pressure relief hole.

6. The in-ear headphone of claim 4, wherein the aperture of the front pressure relief vent ranges from 0.3mm to 0.5 mm.

7. An in-ear headphone according to any one of claims 1 to 3, wherein the side wall of the rear acoustic cavity is provided with a rear pressure relief hole, which communicates the rear acoustic cavity with the external environment.

8. The in-ear headphone of claim 7, wherein the back pressure relief vent has an aperture ranging from 0.3mm to 0.5 mm.

9. An in-ear headphone according to any one of claims 1 to 3, wherein the pressure relief channel is a pressure relief air tube.

10. An in-ear headphone according to claim 9, wherein the pressure relief trachea has a diameter in the range of 0.3mm to 0.5 mm.