Sound guide earplug and earphone

Abstract

The utility model belongs to the technical field of loudspeakers, and discloses a sound guide earplug and an earphone. The sound guide earplug comprises an earplug main body which is axially installed in a sound outlet hole of the earphone, the earplug main body is provided with a first end face and a second end face which are oppositely arranged in the axis direction, the earplug main body is further provided with a plurality of mutually independent sound guide channels, one end of each sound guide channel extends to the first end face, and the other end of each sound guide channel extends to the second end face. One end of the sound guide channel extends to the first end face, the other end of the sound guide channel extends to the second end face, the earphone is provided with a plurality of sound cavities, each sound cavity is communicated with at least one sound guide channel, and the sound guide channel is used for conducting sound of the sound cavity communicated with the sound guide channel to the outside of the earphone. The sound guide earplug and the earphone provided by the utility model can reduce the risk of sound mixing of the earphone and improve the sound quality of the whole earphone.

Description

Technical Field

[0001] The utility model relates to the technical field of loudspeakers, in particular to a sound-conducting earplug and earphone. Background Art

[0002] Earphones can be worn on both ears of a user and used to connect to a sound source device. The sound source device can transmit electronic signals to the earphones, and the earphones convert the electronic signals into sound and then provide it to the user.

[0003] In the prior art, headphones include a housing, a sound-producing unit housed within the housing, and a sound outlet. The sound-producing unit vibrates to produce sound, which is then transmitted through the sound outlet to the user's ear. However, to reduce the manufacturing difficulty of the housing and ensure its structural strength, there is usually only one sound outlet. The sounds of different frequencies emitted by the sound-producing units are mixed and transmitted through this single sound outlet, resulting in mixed sounds in the headphones, which in turn causes intermodulation distortion throughout the headphones, resulting in a loss of sound quality. Utility Model Content

[0004] The first purpose of the present invention is to provide a sound-conducting earplug that is applied to headphones, which can reduce the risk of headphone mixing and improve the sound quality of the entire headphone.

[0005] The second object of the present invention is to provide an earphone with high sound quality and sound effect.

[0006] To achieve this purpose, the present invention adopts the following technical solutions:

[0007] A sound-conducting earplug is applied to an earphone, and the sound-conducting earplug comprises an earplug body axially mounted on the sound outlet of the earphone, the earplug body having a first end face and a second end face arranged opposite to each other in the axial direction, and the earplug body also having a plurality of independent sound-conducting channels, one end of each sound-conducting channel extending to the first end face, and the other end extending to the second end face, the earphone having a plurality of sound cavities, each of which is connected to at least one sound-conducting channel, and the sound-conducting channel is used to conduct the sound of the sound cavity connected thereto to the outside of the earphone.

[0008] Optionally, the sound guide channel is a straight channel and extends along the axis of the earplug body, or part or all of the sound guide channel is curved.

[0009] Optionally, the multiple sound guide channels include a low-frequency sound guide channel and a high-frequency sound guide channel, and the length of the low-frequency sound guide channel in the axial direction of the earplug body is greater than the length of the high-frequency sound guide channel in the axial direction of the earplug body.

[0010] Optionally, the low-frequency sound guiding channel is cylindrical, the high-frequency sound guiding channel is arc-shaped, and the center of the high-frequency sound guiding channel coincides with the center of the low-frequency sound guiding channel.

[0011] Optionally, there are multiple high-frequency sound guiding channels, and the multiple high-frequency sound guiding channels are arranged around the periphery of the low-frequency sound guiding channel.

[0012] Optionally, the sound-conducting earplug further includes a tuning structure;

[0013] The tuning structure is provided in at least one of the sound guide channels;

[0014] Alternatively, there are multiple tuning structures, and the multiple tuning structures correspond one-to-one to the multiple sound guide channels. The tuning structure is arranged in the sound guide channel corresponding to it, and the density of the tuning structures in the sound guide channels connected to the same sound cavity is the same, and the density of the tuning structures in the sound guide channels connected to different sound cavities is different.

[0015] An earphone comprises the sound-conducting earplug as described above, and the earphone further comprises a shell, wherein a sound-emitting unit and a plurality of sound cavities are arranged in the shell, the shell has a sound outlet hole, and the sound outlet hole extends from the outer surface of the shell to the interior of the shell, the sound-conducting earplug is installed in the sound outlet hole, each of the sound cavities is connected to at least one sound-conducting channel, and the sound-conducting channel is used to conduct the sound of the sound cavity connected thereto to the outside of the earphone.

[0016] Optionally, there are multiple sound-emitting monomers, and the multiple sound-emitting monomers correspond one-to-one to the multiple sound cavities. Each sound-emitting monomer is used to enclose the sound cavity corresponding to it, and the frequencies of the multiple sound-emitting monomers are not exactly the same.

[0017] Optionally, the plurality of sound-emitting units include low-frequency sound-emitting units and high-frequency sound-emitting units, and the plurality of sound-guiding channels include low-frequency sound-guiding channels and high-frequency sound-guiding channels. The low-frequency sound-guiding channels are connected to the sound cavities corresponding to the low-frequency sound-emitting units, and the high-frequency sound-guiding channels are connected to the sound cavities corresponding to the high-frequency sound-emitting units.

[0018] Optionally, the high-frequency sounding unit is arranged around the outside of the low-frequency sounding unit.

[0019] Beneficial effects of the utility model:

[0020] The utility model provides a sound-conducting earplug and earphone, in which the sound outlet of the shell is installed with a sound-conducting earplug, and the earplug body of the sound-conducting earplug has a plurality of sound-conducting channels arranged along the axial direction, and the sound can be transmitted from the inside of the shell to the outside of the shell through the sound-conducting channels. Since the multiple sound-conducting channels are independent of each other, the sounds will not be mixed with each other when propagating in the sound-conducting channels, thereby preventing the occurrence of mixing. Each sound cavity is connected to at least one sound-conducting channel, so that the sound in the sound cavity can be transmitted to the outside of the shell by at least one sound-conducting channel, ensuring the transmission of the sound in each sound cavity, and no mixing problem will occur in the transmission process, thereby ensuring the intermodulation performance of the entire earphone and avoiding the loss of sound quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a first structural diagram of a sound guide earplug provided by an embodiment of the present utility model;

[0022] Figure 2 This is a second structural diagram of a sound guide earplug provided by an embodiment of the present utility model;

[0023] Figure 3 This is a schematic structural diagram of an earphone provided by an embodiment of the present utility model;

[0024] Figure 4 This is an exploded view of an earphone provided by an embodiment of the present utility model;

[0025] Figure 5 This is a partial schematic diagram of an earphone provided by an embodiment of the present utility model;

[0026] Figure 6 This is a front view of an earphone provided by an embodiment of the present utility model;

[0027] Figure 7 This utility model Figure 6 The AA section view shown;

[0028] Figure 8 This is a first structural diagram of another sound guide earplug provided by an embodiment of the present utility model;

[0029] Figure 9 This is a structural diagram of another earphone provided by an embodiment of the present utility model;

[0030] Figure 10 This is a partial structural diagram of another earphone provided by an embodiment of the present utility model;

[0031] Figure 11 This is a side view of another earphone provided by an embodiment of the present utility model;

[0032] Figure 12 This utility model Figure 11BB cross-section shown;

[0033] Figure 13 This is an acoustic curve diagram of the earphone provided by the embodiment of the utility model before and after the sound guide earplug is installed.

[0034] In the picture:

[0035] 100, earplug body; 101, first end surface; 102, second end surface; 110, sound guide channel; 111, low-frequency sound guide channel; 112, high-frequency sound guide channel; 120, flange;

[0036] 200, housing; 210, sound outlet; 220, positioning groove; 230, arc-shaped housing; 240, first supporting portion; 241, through hole; 250, second supporting portion; 251, sound guide hole; 260, first protrusion; 270, cylindrical housing; 280, second protrusion;

[0037] 300, sound cavity; 310, low-frequency sound cavity; 320, high-frequency sound cavity; 321, first sub-cavity; 322, second sub-cavity;

[0038] 400, low-frequency sound unit;

[0039] 500, high-frequency sound unit. DETAILED DESCRIPTION

[0040] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all of its components.

[0041] In the description of this utility model, unless otherwise specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0042] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0043] In the description of this embodiment, the terms "upper," "lower," "right," and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0044] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation methods.

[0045] Example 1

[0046] This embodiment provides a headset that can prevent the problem of sound mixing, ensure the intermodulation performance of the headset, and thus reduce the loss of sound quality.

[0047] like Figures 1 to 7 As shown, the earphones include a housing 200, a sound-emitting unit, and a sound-conducting earplug. The sound-emitting unit is disposed within the housing 200 and is configured to vibrate and generate sound. The housing 200 further includes a plurality of sound cavities 300. The frequencies of the sounds in the plurality of sound cavities 300 are not identical, that is, the frequencies of the sounds in the plurality of sound cavities 300 are completely different, or the frequencies of the sounds in some of the plurality of sound cavities 300 are the same, while the frequencies of the sounds in other portions of the plurality of sound cavities 300 are different.

[0048] like Figure 4 As shown, the housing 200 has a sound outlet 210, which extends from the outer surface of the housing 200 to the interior of the housing 200. The sound guide earplug is installed in the sound outlet 210.

[0049] For example, Figure 1 and Figure 2As shown, the sound-conducting earplug includes an earplug body 100 axially mounted on the sound outlet 210. The earplug body 100 has a first end face 101 and a second end face 102 arranged opposite to each other in the axial direction. The earplug body 100 also has a plurality of independent sound-conducting channels 110. One end of each sound-conducting channel 110 extends to the first end face 101 and the other end extends to the second end face 102. That is, the sound-conducting channel 110 passes through the earplug body 100 in the axial direction of the earplug body 100. Because the multiple sound-conducting channels 110 are independent of each other, the sounds conducted in the sound-conducting channels 110 will not be mixed with each other. In this embodiment, each sound cavity 300 is connected to at least one sound-conducting channel 110, and the sound-conducting channel 110 is used to conduct the sound of the sound cavity 300 connected thereto to the outside of the earphone.

[0050] The earphones provided in this embodiment have a sound outlet 210 of the shell 200 equipped with a sound guide earplug. The earplug body 100 of the sound guide earplug has a plurality of sound guide channels 110 extending along the axial direction. Sound can be transmitted from the inside of the shell 200 to the outside of the shell 200 through the sound guide channels 110. Since the plurality of sound guide channels 110 are independent of each other, the sounds will not be mixed with each other when propagating in the sound guide channels 110, thereby preventing sound mixing. Each sound cavity 300 is connected to at least one sound guide channel 110, so that the sound in the sound cavity 300 can be transmitted to the outside of the shell 200 by at least one sound guide channel 110, thereby ensuring the transmission of sound in each sound cavity 300, and preventing sound mixing problems during the transmission process, thereby ensuring the intermodulation performance of the entire earphone and avoiding sound quality loss.

[0051] Alternatively, as Figure 3-Figure 5 As shown, the housing 200 includes a connected curved shell 230 and a first raised portion 260. The sound-emitting unit is disposed within the curved shell 230, and the sound outlet 210 is disposed on the first raised portion 260. In other words, the sound guide earplug is mounted on the first raised portion 260. For example, a positioning groove 220 is provided on the end surface of the first raised portion 260, and a flange 120 is provided on the outer circumference of the earplug body 100. The flange 120 is used to position the earplug body 100 within the earphone housing 200. Specifically, at least a portion of the flange 120 is positioned within the positioning groove 220 to securely attach the earplug body 100 to the first raised portion 260. For example, the flange 120 is annular, and the positioning groove 220 is also annular. In this embodiment, the end surface of the earplug body 100 can be flush with the end surface of the first raised portion 260, or it can protrude beyond the end surface of the first raised portion 260, although this embodiment is not limited thereto.

[0052] Further optionally, as Figure 3As shown, a first support portion 240 may be connected to the arc-shaped shell 230 , and the first support portion 240 is used to support and fix the sound unit to prevent the sound unit from moving relative to the arc-shaped shell 230 , thereby improving the stability of the sound unit.

[0053] In some optional embodiments, there are multiple sound-emitting units, that is, the earphones in this embodiment are multi-sound-emitting units, and the sound quality can be further improved. The multiple sound cavities 300 correspond one-to-one to the multiple sound-emitting units, and each sound-emitting unit is used to enclose the sound cavity 300 corresponding to it, that is, each sound-emitting unit constitutes at least part of the cavity wall of the sound cavity 300 corresponding to it. For example, the sound cavity 300 can be formed by the corresponding sound-emitting unit and the housing 200, or by the corresponding sound-emitting unit and other sound-emitting units, and this embodiment is not limited to this.

[0054] In this embodiment, the frequencies of the multiple sound-emitting units are not exactly the same. For example, the frequencies of the multiple sound-emitting units are completely different, so that the earphone has sound-emitting units of multiple frequencies, making the sound output of the earphone richer.

[0055] Exemplarily, the sound-conducting earplug also includes a tuning structure (not shown in the figure), which can be used to tune the earphones and then adjust the acoustic curve of the earphones to optimize the sound quality and sound effects of the earphones.

[0056] In some optional embodiments, a tuning structure is provided in at least one sound guide channel 110 . The sound guide channel 110 with the tuning structure can adjust the sound in the sound guide channel 110 to optimize the acoustic curve in the sound guide channel 110 .

[0057] In other optional embodiments, multiple tuning structures are provided, each corresponding to a plurality of sound guide channels 110. The tuning structures are disposed in the corresponding sound guide channels 110. Furthermore, the density of the tuning structures in the sound guide channels 110 connected to the same sound cavity 300 is the same, allowing for uniform adjustment of the sound within a single sound cavity 300 and avoiding mixing caused by varying tuning effects. In this embodiment, the density of the tuning structures in the sound guide channels 110 connected to different sound cavities 300 is different, enabling individual adjustment of the sound within each sound cavity 300 to achieve a more optimal acoustic curve.

[0058] Illustratively, the tuning structure may be a tuning mesh, tuning cotton or other structure, or a mixture of tuning mesh, tuning cotton and other structures, which is not limited in this embodiment.

[0059] Alternatively, as Figure 6 and Figure 7As shown, the sound guide channel 110 is a straight channel and extends along the axial direction of the earplug body 100. By setting the sound guide channel 110 as a straight channel, the loss of sound conduction in the sound guide channel 110 can be reduced.

[0060] Of course, it is understandable that part or all of the sound guide channel 110 is curved, and the specific choice can be made according to actual needs.

[0061] In some optional embodiments, such as Figure 2 As shown, the multiple sound guide channels 110 include a low-frequency sound guide channel 111 and a high-frequency sound guide channel 112. The low-frequency sound guide channel 111 is used to conduct low-frequency sounds, and the high-frequency sound guide channel 112 is used to conduct high-frequency sounds, so that the high-frequency sound and low-frequency sound of the earphone can be conducted separately to avoid mixing of high and low frequency sounds. In this embodiment, Figure 7 As described, the sound-emitting unit is set at an inclined angle to the axial direction of the earplug main body 100, rather than being set vertically at 90 degrees. The length of the low-frequency sound guide channel 111 in the axial direction of the earplug main body 100 is greater than the length of the high-frequency sound guide channel 112 in the axial direction of the earplug main body 100, so that the low-frequency sound guide channel 111 can be smoothly connected with the corresponding sound cavity 300. In addition, setting the low-frequency sound guide channel 111 and the high-frequency sound guide channel 112 to different lengths can reduce the consumables of the earplug main body 100 and contribute to the lightweighting of the earplug main body 100.

[0062] It should be noted that when the plurality of sound guide channels 110 include a low-frequency sound guide channel 111 and a high-frequency sound guide channel 112, Figure 7 As shown, the sound cavity 300 is provided with two, namely a low-frequency sound cavity 310 and a high-frequency sound cavity 320 , wherein the low-frequency sound guide channel 111 is connected to the low-frequency sound cavity 310 , and the high-frequency sound guide channel 112 is connected to the high-frequency sound cavity 320 .

[0063] For example, Figure 2 As shown, the low-frequency sound guide channel 111 is cylindrical to facilitate the propagation of low-frequency sounds. The high-frequency sound guide channel 112 is arc-shaped, and the center of the high-frequency sound guide channel 112 coincides with the center of the low-frequency sound guide channel 111, allowing the low-frequency sound guide channel 111 and the high-frequency sound guide channel 112 to fully utilize the cross-sectional space of the earplug body 100.

[0064] In some optional embodiments, the cross-sectional area of the high-frequency sound guide channel 112 is larger than the cross-sectional area of the low-frequency sound guide channel 111 to facilitate the propagation of high-frequency sound.

[0065] In this embodiment, there is one high-frequency sound guide channel 112 and one low-frequency sound guide channel 111. Of course, it is understandable that there can be multiple high-frequency sound guide channels 112 and multiple low-frequency sound guide channels 111, and this embodiment does not limit this.

[0066] It should be noted that when the multiple sound guide channels 110 include a low-frequency sound guide channel 111 and a high-frequency sound guide channel 112, the multiple sound units may include a low-frequency sound unit 400 and a high-frequency sound unit 500. The low-frequency sound unit 400 is used to emit low-frequency sound, and the high-frequency sound unit 500 is used to emit high-frequency sound, thereby realizing separate sound emission of high and low frequencies to obtain better sound effects and sound quality.

[0067] In some optional embodiments, the high-frequency sounding unit 500 is arranged around the outside of the low-frequency sounding unit 400 to reduce the design space of the high-frequency sounding unit 500 and the low-frequency sounding unit 400, so that the design of the two sounding units will not increase the volume of the earphone too much, which is conducive to the miniaturization and lightweight of the earphone.

[0068] When the high frequency sounding unit 500 surrounds the outside of the low frequency sounding unit 400, as shown in FIG. Figure 7 As shown, the high-frequency sound cavity 320 surrounds the outer periphery of the low-frequency sound cavity 310 and is independent of the low-frequency sound cavity 310. For example, the high-frequency sounding unit 500, the first supporting portion 240 and the arc-shaped shell 230 are jointly arranged to form the high-frequency sound cavity 320. Specifically, the high-frequency sounding unit 500 and the first supporting portion 240 form a first sub-cavity 321 of the high-frequency sound cavity 320, and the first supporting portion 240 and the arc-shaped shell 230 form a second sub-cavity 322 of the high-frequency sound cavity 320. Figure 4 As shown, a plurality of through holes 241 are opened on the top surface of the first support portion 240 , the first sub-cavity 321 and the second sub-cavity 322 are connected through the plurality of through holes 241 , and the high-frequency sound guide is connected with the second sub-cavity 322 .

[0069] Please continue to see Figure 7 The shell 200 also includes a second supporting portion 250, which is connected to the first supporting portion 240 and passes through the top surface of the first supporting portion 240. The low-frequency sound unit 400 and the second supporting portion 250 are arranged to form a low-frequency sound cavity 310, and the second supporting portion 250 is provided with a sound guide hole 251. The low-frequency sound guide channel 111 is connected to the low-frequency sound cavity 310 through the sound guide hole 251, so that the sound in the low-frequency sound cavity 310 can be transmitted to the low-frequency sound guide channel 111.

[0070] Figure 13 The blue line in the figure represents the acoustic curve of the earphone without the sound guide earplug; the brown line represents the acoustic curve of the earphone with the sound guide earplug installed. Figure 13 It can be seen that the high-frequency performance energy of the headphones is greatly improved after the sound guide earplugs are installed, making the low-frequency and high-frequency sound quality of the headphones higher.

[0071] Example 2

[0072] The difference between this embodiment and the first embodiment lies in that the specific structure of the shell and the specific structure of the earplug body 100 are different.

[0073] Specifically, if Figures 8 to 12 As shown, the shell includes a connected cylindrical shell 270 and a second raised portion 280 , the sound unit is located in the cylindrical shell 270 , and the second raised portion 280 is provided with a sound outlet 210 , that is, the earplug body 100 is installed on the second raised portion 280 .

[0074] Alternatively, as Figure 8 As shown, there are multiple high-frequency sound guide channels 112, and the multiple high-frequency sound guide channels 112 are arranged around the periphery of the low-frequency sound guide channel 111. Figure 8 1 is a schematic diagram showing two high-frequency sound guide channels 112. The two high-frequency sound guide channels 112 are both arc-shaped and are concentrically arranged with the low-frequency sound guide channel 111, wherein the low-frequency sound guide channel 111 is cylindrical.

[0075] In this embodiment, Figure 12 As shown, the first sub-cavity 321 of the high-frequency sound guide channel 112 is formed by the first supporting portion 240 and the high-frequency sound-emitting unit 500, and the second sub-cavity 322 is formed by the second protruding portion 280 and the earplug body 100, thereby realizing the multi-purpose of the earplug body 100, and the part of the earplug body 100 used to form the high-frequency sound guide channel 112 can be thinner, which is further conducive to the lightweight of the sound guide earplug and the simpler structure.

[0076] In some optional embodiments, the axis of the low-frequency sound guide channel 111 coincides with the axis of the earplug body 100, and multiple high-frequency sound guide channels 112 are evenly arranged on the periphery of the low-frequency sound guide channel 111, so as to improve the uniformity of sound propagation and thereby improve the sound quality.

[0077] In addition, the second protrusion 280 is also provided with a positioning groove 220 for positioning the earplug body 100, which is not limited in this embodiment.

[0078] The other structures in this embodiment are similar to the corresponding structures in the first embodiment and have similar beneficial effects, and will not be described in detail here.

[0079] Obviously, the above-described embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the manner in which the present invention is to be implemented. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. Sound guide earplugs, used in headphones, characterized by: The sound-conducting earplug comprises an earplug body (100) axially mounted on a sound outlet (210) of the earphone, the earplug body (100) having a first end face (101) and a second end face (102) arranged opposite to each other in an axial direction, the earplug body (100) further comprising a plurality of independent sound-conducting channels (110), one end of each of the sound-conducting channels (110) extending to the first end face (101) and the other end extending to the second end face (102), the earphone having a plurality of sound cavities (300), each of the sound cavities (300) being connected to at least one of the sound-conducting channels (110), and the sound-conducting channels (110) being used to conduct the sound of the sound cavity (300) connected thereto to the outside of the earphone.

2. The sound guide earplug according to claim 1, characterized in that The sound guide channel (110) is a straight channel and extends along the axial direction of the earplug body (100), or part or all of the sound guide channel (110) is curved.

3. The sound guide earplug according to claim 1, characterized in that The plurality of sound guide channels (110) include a low-frequency sound guide channel (111) and a high-frequency sound guide channel (112), wherein the length of the low-frequency sound guide channel (111) in the axial direction of the earplug body (100) is greater than the length of the high-frequency sound guide channel (112) in the axial direction of the earplug body (100).

4. The sound guide earplug according to claim 3, characterized in that The low-frequency sound guiding channel (111) is cylindrical, the high-frequency sound guiding channel (112) is arc-shaped, and the center of the high-frequency sound guiding channel (112) coincides with the center of the low-frequency sound guiding channel (111).

5. The sound guide earplug according to claim 4, characterized in that A plurality of high-frequency sound guiding channels (112) are provided, and the plurality of high-frequency sound guiding channels (112) are arranged around the periphery of the low-frequency sound guiding channel (111).

6. The sound guide earplug according to claim 1, characterized in that The sound-conducting earplug further includes a tuning structure; The tuning structure is provided in at least one of the sound guide channels (110); Alternatively, the tuning structure is provided in plurality, and the plurality of tuning structures correspond one-to-one to the plurality of sound guide channels (110). The tuning structure is arranged in the sound guide channel (110) corresponding thereto, and the density of the tuning structure in the sound guide channel (110) connected to the same sound cavity (300) is the same, while the density of the tuning structure in the sound guide channel (110) connected to different sound cavities (300) is different.

7. Headphones, characterized in that The invention comprises a sound-conducting earplug as claimed in any one of claims 1 to 6, wherein the earphone further comprises a shell (200), wherein a sound-emitting unit and a plurality of sound cavities (300) are provided in the shell (200), wherein the shell (200) has a sound outlet (210), wherein the sound outlet (210) extends from the outer surface of the shell (200) to the interior of the shell (200), and the sound-conducting earplug is installed in the sound outlet (210), wherein each of the sound cavities (300) is connected to at least one of the sound-conducting channels (110), and wherein the sound-conducting channels (110) are used to conduct the sound of the sound cavity (300) connected thereto to the outside of the earphone.

8. The earphone according to claim 7, wherein: There are a plurality of the sound-emitting monomers, and the plurality of the sound-emitting monomers correspond one-to-one to the plurality of the sound cavities (300). Each of the sound-emitting monomers is used to surround the sound cavity (300) corresponding thereto, and the frequencies of the plurality of the sound-emitting monomers are not completely the same.

9. The earphone according to claim 8, characterized in that The plurality of sound-emitting monomers include low-frequency sound-emitting monomers (400) and high-frequency sound-emitting monomers (500); the plurality of sound-guiding channels (110) include low-frequency sound-guiding channels (111) and high-frequency sound-guiding channels (112); the low-frequency sound-guiding channels (111) are connected to the sound cavity (300) corresponding to the low-frequency sound-emitting monomers (400); and the high-frequency sound-guiding channels (112) are connected to the sound cavity (300) corresponding to the high-frequency sound-emitting monomers (500).

10. The earphone according to claim 9, characterized in that The high-frequency sound-generating monomer (500) is arranged around the outside of the low-frequency sound-generating monomer (400).

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