A sealing structure and earphone

Abstract

The application discloses a sealing structure and earphone, the sealing structure comprises a fixed part, a connecting part and a sealing plug, the fixed part is located on the side of the sealing plug, the connecting part is located outside the shell and is connected with the fixed part, and the sealing plug is connected with the connecting part. The sealing structure is configured so that the sealing plug can be inserted into the charging hole to block the charging hole, part of the fixed part is bent towards the sealing plug, and the fixed part is located in the shell and connected with the shell. In this way, the stability of the entire sealing structure connection can be improved. In addition, the fixed part does not occupy too much space on the side of the sealing plug, and does not occupy a large space in a certain direction, which facilitates the layout of internal components of the entire earphone and the overall miniaturization design.

Description

Technical Field

[0001] This application relates to the field of sealing technology, and in particular to a sealing structure and headphones. Background Technology

[0002] In sports headphones, the headphones are usually equipped with a sealing plug. When the headphones are not charging, the sealing plug is used to seal the charging port to prevent moisture, dust and other tiny particles from entering the headphones through the charging interface, ensuring that the headphones meet the IPX7 waterproof and dustproof standard.

[0003] In related technologies, the sealing plug selectively blocks the charging port by flipping it over. However, the sealing plug also needs to ensure that it does not block the charging head after flipping over. Therefore, there needs to be a sufficient flipping distance from the flipping point. This results in the sealing plug occupying a lot of space, which is not conducive to the miniaturization design of the headphones. Utility Model Content

[0004] This application provides a sealing structure and an earphone that can solve the problem in related technologies where the sealing plug occupies a lot of space, which is not conducive to the miniaturization design of earphones.

[0005] In a first aspect, embodiments of this application provide a sealing structure, including: a fixing part, a connecting part, and a sealing plug, wherein the connecting part connects the fixing part and the sealing plug, the fixing part is located on the side of the sealing plug, and a portion of the fixing part is bent toward the direction close to the sealing plug.

[0006] In some embodiments, the fixing part includes:

[0007] A first fixed section, one end of which is connected to the connecting part, and the other end extending toward the sealing plug; and

[0008] The second fixing segment is connected to the end of the first fixing segment away from the connecting part, and is set at an angle to the first fixing segment.

[0009] In some embodiments, the outer side wall of the first fixed segment is provided with a first elastic abutment portion;

[0010] And / or, the outer side wall of the first fixed segment is provided with a second elastic abutment portion, and the second elastic abutment portion forms a limiting surface on one side facing the first fixed segment.

[0011] In some embodiments, the axis of the first elastic abutment portion is set at an angle to the axis of the second elastic abutment portion.

[0012] In some embodiments, the obtuse angle between the first fixed segment and the second fixed segment is A, where A satisfies: 100°≤A≤130°;

[0013] And / or, the acute angle between the first fixed segment and the arrangement direction of the sealing plug and the connecting part is B, where B satisfies: 10°≤B≤30°.

[0014] Secondly, embodiments of this application provide an earphone, including:

[0015] The outer casing has a charging hole that penetrates the outer surface of the outer casing.

[0016] A sealing structure includes a fixing part, a connecting part, and a sealing plug. The fixing part is located inside the housing and connected to the housing. The fixing part is located to the side of the charging port. A portion of the fixing part is bent toward the charging port. The connecting part is located outside the housing and connected to the fixing part. The sealing plug is connected to the connecting part. The sealing structure is configured such that the sealing plug can be inserted into the charging port to block the charging port.

[0017] In some embodiments, the fixing part includes:

[0018] A first fixed section, one end of which is connected to the connecting part, and the other end extending towards the charging port; and

[0019] The second fixing segment is connected to the end of the first fixing segment away from the connecting part, and is set at an angle to the first fixing segment.

[0020] In some embodiments, the housing is provided with a mounting channel that extends through the outer and inner surfaces of the housing, and the first fixing segment is located within the mounting channel;

[0021] The outer side wall of the first fixed section is provided with a first elastic abutment, which abuts against the inner wall of the installation channel;

[0022] And / or, the outer side wall of the first fixed section is provided with a second elastic abutment portion, the second elastic abutment portion forms a limiting surface on one side facing the first fixed section, and the inner wall of the installation channel forms a mating surface that abuts against the limiting surface.

[0023] In some embodiments, the axis of the first elastic abutment portion is set at an angle to the axis of the second elastic abutment portion.

[0024] In some embodiments, the obtuse angle between the first fixed segment and the second fixed segment is A, where A satisfies: 100°≤A≤130°;

[0025] And / or, the acute angle between the first fixed segment and the arrangement direction of the sealing plug and the connecting part is B, where B satisfies: 10°≤B≤30°.

[0026] Based on the sealing structure and earphone of the present application embodiment, the sealing structure includes a fixing part, a connecting part and a sealing plug. The fixing part is located on the side of the sealing plug. A portion of the fixing part is bent toward the direction close to the sealing plug. The fixing part is located inside the outer shell and connected to the outer shell. In this way, the stability of the connection of the entire sealing structure can be increased. In addition, the fixing part will not occupy too much space on the side of the sealing plug, nor will it occupy a large space in a certain direction, which facilitates the layout of the internal components of the earphone and the overall miniaturization design. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the structure of the earphone provided in an embodiment of this application;

[0029] Figure 2 A schematic diagram of the headphone structure from another perspective, provided as an embodiment of this application;

[0030] Figure 3 for Figure 2 A schematic diagram of the cross-section at point AA;

[0031] Figure 4 for Figure 3 Enlarged schematic diagram of the structure of section A in the middle;

[0032] Figure 5 This is a schematic diagram of the structure of the sealing structure and interface component in the connected state provided in the embodiments of this application;

[0033] Figure 6 This is a schematic diagram of the structure provided in the embodiment of this application, showing the sealing structure and interface component separated.

[0034] Figure 7 This is a schematic diagram of the sealing structure provided in an embodiment of this application.

[0035] Figure reference numerals:

[0036] 10. Headphones;

[0037] 100. Outer casing; 100a. Charging port; 100b. Mounting channel; 100c. Mating surface;

[0038] 200, Sealing structure; 210, Fixing part; 211, First fixing section; 2111, First elastic abutment part; 2112, Second elastic abutment part; 2112a, Limiting surface; 212, Second fixing section; 220, Connecting part; 230, Sealing plug; 231, Sealing end plate; 232, Sealing ring; 2321, Second elastic abutment part;

[0039] 300. Interface component; 310. Cover; 320. Charging terminal. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0041] In sports headphones, the headphones are usually equipped with a sealing plug. When the headphones are not charging, the sealing plug is used to seal the charging port to prevent moisture, dust and other tiny particles from entering the headphones through the charging interface, ensuring that the headphones meet the IPX7 waterproof and dustproof standard.

[0042] In the existing technology, the sealing plug selectively blocks the charging port by flipping it over. However, the sealing plug also needs to ensure that it does not block the charging head after flipping over. Therefore, there needs to be a sufficient flipping distance from the flipping point. This results in the sealing plug occupying a lot of space, which is not conducive to the miniaturization design of the headphones.

[0043] To resolve the above technical issues, please refer to [link / reference]. Figures 1 to 2 This application provides an earphone 10, which includes a housing 100 and a sealing structure 200.

[0044] The outer shell 100 serves as the main frame of the earphone 10 and is made of high-strength material. It forms a closed cavity to protect the internal precision components (battery, circuit board, speaker, etc.) from physical impact and deformation. The outer shell 100 has a charging hole 100a that penetrates the outer surface of the outer shell 100. In this way, the user can charge the earphone 10 by inserting an external charging head into the charging hole 100a.

[0045] The sealing structure 200 includes a fixing part 210, a connecting part 220, and a sealing plug 230, as described below. Figures 3 to 5 The fixing part 210, the connecting part 220 and the sealing plug 230 will be further described.

[0046] The sealing plug 230 can be inserted into the charging port 100a to prevent moisture, dust and other tiny particles from entering the earphone 10 through the charging interface, thereby achieving the sealing function of the sealing structure 200. The sealing plug 230 can be made of elastic material such as rubber or silicone, so that it can elastically abut against the inner wall of the charging port 100a, thereby improving the sealing effect.

[0047] The connecting portion 220 connects the fixing portion 210 and the sealing plug 230, and the connecting portion 220 is located to the side of the sealing plug 230. Thus, when the fixing portion 210 is fixed relative to the earphone 10, the sealing plug 230 can be flipped with the connecting portion 220 as the flipping point, thereby exposing the charging port 100a for easy charging. Furthermore, the sealing plug 230 can be flipped with the connection end between the connecting portion 220 and the fixing portion 210 as the flipping point, so that the sealing plug 230 has sufficient flipping size to fully expose the sealing hole, making it easier for the charging head to be inserted into the charging port 100a for charging.

[0048] The fixing part 210 is located at the end of the connecting part 220 away from the sealing plug 230, that is, on the side of the sealing plug 230 and the charging port 100a. Part of the fixing part 210 is bent towards the charging port 100a. In this way, the entire fixing part 210 will not continue to occupy too much space on the side of the sealing plug 230. It is understood that a magnetic charging port, control button and probe for communicating with external signals will be provided on the outer shell 100 of the earphone 10. Since part of the fixing part 210 is bent towards the charging port 100a, this part mainly occupies the internal space of the earphone 10, and will not occupy too much space on the edge of the earphone 10. The space saved on the edge of the earphone 10 can facilitate the layout of the magnetic charging port, control button or probe, thereby facilitating the miniaturization design of the entire earphone 10.

[0049] Furthermore, by bending a portion of the fixing part 210 toward the charging port 100a, the entire fixing part 210 can avoid occupying too much space in one direction, which is beneficial for the layout of other components inside the earphone 10, thereby satisfying the miniaturization and lightweight design of the earphone 10.

[0050] It should be understood that since the entire sealing structure 200 is connected to the outer shell 100 through the fixing part 210, the part of the fixing part 210 is bent in the direction close to the charging hole 100a. In this way, the bending structure transforms the original line contact into surface contact, increases the contact area, and improves the pull-out resistance of the entire sealing structure 200 through the synergistic effect of friction and deformation resistance.

[0051] The bend creates a triangular stress transmission path, which decomposes external forces (such as the pulling force generated by the insertion and removal of the sealing plug 230) into forces in two directions, avoiding stress concentration and improving the pull-out resistance of the entire sealing structure 200, thereby ensuring the stability of the connection of the sealing structure 200.

[0052] Further, please refer to Figures 5 to 6 In one embodiment of this application, the fixing part 210 includes a first fixing section 211 and a second fixing section 212. One end of the first fixing section 211 is connected to the connecting part 220, and the other end extends toward the sealing plug 230. In this way, the entire first fixing section 211 will not continue to occupy too much space on the side of the sealing plug 230, thereby facilitating the layout of the magnetic charging port, control button or probe, and thus facilitating the miniaturization design of the entire earphone 10.

[0053] The second fixing segment 212 is connected to the end of the first fixing segment 211 away from the connecting part 220, and is set at an angle to the first fixing segment 211, so that the connection between the second fixing segment 212 and the first fixing segment 211 is bent toward the charging hole 100a. In this way, the entire fixing part 210 can avoid occupying too much space in one direction, which is beneficial to the layout of other components in the internal space of the earphone 10, and thus can meet the miniaturization and lightweight design of the earphone 10.

[0054] Furthermore, in this embodiment, since the first fixed segment 211 and the second fixed segment 212 are set at an angle to form a bent structure, the bent structure changes the force transmission path, thereby improving the pull-out resistance of the entire sealing structure 200.

[0055] Following the above, the outer casing 100 is provided with an installation channel 100b, which penetrates the outer surface and inner surface of the outer casing 100. The first fixing section 211 is located inside the installation channel 100b, and the outer side wall of the first fixing section 211 is provided with a first elastic abutment part 2111, which abuts against the inner wall of the installation channel 100b.

[0056] The first elastic abutment part 2111 can be made of elastic materials such as rubber or silicone. The first elastic abutment part 2111 (such as a raised elastic arm or a wavy rib) generates a continuous pre-tightening force through the elastic deformation of the material, which axially fixes the first fixing section 211 in the installation channel 100b and resists the pull-out force generated by the insertion and removal operation.

[0057] It should also be understood that the first elastic contact portion 2111, as a vibration energy absorption layer, can reduce the perception of abnormal noise when wearing. In addition, the first elastic contact portion 2111 forms a 360° annular sealing strip, thereby reducing the possibility of dust and moisture entering the inside of the earphone 10 through the installation channel 100b, further ensuring the performance of the waterproof and waterproof layer of the earphone 10.

[0058] Furthermore, since the first elastic abutment portion 2111 presses against the inner wall of the installation channel 100b, the first fixing section 211 can be stably fixed without the need for traditional connection methods such as adhesive, snap-fit ​​or ultrasonic welding, thereby effectively improving the installation efficiency of the sealing structure 200.

[0059] Furthermore, at least a portion of the first fixing segment 211 is located within the mounting channel 100b and presses against the inner wall of the mounting channel 100b, thereby forming an additional sealing layer to prevent dust or water from entering, thus further improving the sealing effect of the entire earphone 10.

[0060] It should also be understood that, since the first fixing segment 211 presses against the inner wall of the installation channel 100b, the first fixing segment 211 can be stably fixed without the need for traditional connection methods such as adhesive, clips or ultrasonic welding, thereby effectively improving the installation efficiency of the sealing structure 200.

[0061] Please see Figures 4 to 6 In one embodiment of this application, a second elastic abutment portion 2112 is provided on the outer side wall of the first fixed segment 211, and a limiting surface 2112a is formed on the side of the second elastic abutment portion 2112 facing the first fixed segment 211.

[0062] The material of the second fixing section 212 can also be elastic materials such as silicone or rubber. Since the entire sealing structure 200 is installed on the housing 100 by pulling the second fixing section 212, the connecting part 220 and the sealing plug 230 are installed in place, and the first fixing section 211 is located in the installation channel 100b.

[0063] The mounting channel 100b forms a mounting opening at its end inside the housing 100, and the wall of the mounting opening forms a mating surface 100c. Since the second fixing section 212 is an elastic body, it can deform during the pulling process and, through the mounting opening, make the limiting surface 2112a abut against the mating surface 100c. In this way, it can make the entire fixing part 210 more difficult to be pulled out from the mounting channel 100b, thereby improving the stability of the sealing structure 200.

[0064] In another embodiment of this application, please refer to Figure 7The axis MM of the first elastic abutment part 2111 and the axis NN of the second elastic abutment part 2112 are set at an angle. In this way, when the headphone 10 device is dropped or vibrated, the impact energy can be dispersed through elastic deformation in two directions, avoiding unidirectional overload and reducing the risk of permanent deformation.

[0065] Furthermore, since the axis MM of the first elastic abutment portion 2111 is set at an angle to the axis NN of the second elastic abutment portion 2112, the first fixing segment 211 can be limited from multiple directions, thus restricting the possibility of the first fixing segment 211 falling off the outer shell 100.

[0066] Please see Figure 7 In one embodiment of this application, the obtuse angle between the first fixed segment 211 and the second fixed segment 212 is A, where A satisfies: 100°≤A≤130°, that is, the angle of A can be any value between 100°, 110°, 120°, 130° or more. By having A within the above range, that is, the angle of A is appropriate, the second fixed segment 212 will not be too biased to one side of the outer shell 100, such as it is difficult to affect the layout of the charging port 100a, which is beneficial to the layout of other components in the internal space of the earphone 10.

[0067] Please refer to section 7. The acute angle between the first fixing segment 211 and the arrangement direction of the sealing plug 230 and the connecting part 220 is B, where B satisfies: 10°≤B≤30°, that is, the angle of B can be any value between 10°, 20°, 30° or more. Since B is within the above range, that is, the angle of B is appropriate. Thus, during the opening of the sealing plug 230, it is difficult to pull the tilted first fixing segment 211 out of the outer shell 100.

[0068] Furthermore, by positioning B at the aforementioned angle, i.e., the first fixed segment 211 can be closer to the sealing plug 230, more space can be reserved within the edge of the housing 100 to accommodate structures such as magnetic charging ports, control buttons, or probes, thereby facilitating the functional and miniaturized design of the entire earphone 10.

[0069] Optionally, please refer to Figure 4 In one embodiment of this application, the fixing part 210 has a first projection on the first plane, and the connecting part 220 has a second projection on the first plane. Along the arrangement direction of the fixing part 210 and the connecting part 220, the length of the first projection is h1, and the length of the second projection is h2, wherein 0.5h2≤h1≤0.8h2, and the first plane is perpendicular to the depth direction of the charging hole.

[0070] Understandably, the earphone 10 will have an interface component 300 at the bottom of the charging port 100a to facilitate connection with an external charging adapter. h1 can be within the range of 0.5h2, 0.6h2, 0.7h2, 0.8h2, or any two of these ranges. By ensuring h1 falls within this range, it is guaranteed that the fixing part 210 will not extend excessively, leaving sufficient space for the interface component 300. In other words, the fixing part 210 is unlikely to occupy the space of the interface component 300, facilitating the layout design of the interface component 300.

[0071] The following will combine Figures 5 to 6 The sealing plug 230 is further described below. The sealing plug 230 includes a sealing end plate 231 and a sealing ring 232.

[0072] The sealing end plate 231 is connected to the connecting part 220. The sealing end plate 231 is located outside the charging hole 100a and selectively blocks the charging hole 100a. That is, the opening of the charging hole 100a blocked by the sealing end plate 231 can also abut against the outer shell 100, limiting the position of the sealing ring 232 inserted into the charging hole 100a.

[0073] The sealing ring 232 is connected to the sealing end plate 231 and is located on the side of the sealing end plate 231 facing the charging hole 100a. The sealing ring 232 can be inserted into the charging hole 100a to cover the charging hole 100a, thereby reducing the possibility of dust entering the interface assembly 300 through the inner wall of the charging hole 100a.

[0074] The dual dustproof and waterproof functions of the sealing end plate 231 and the sealing ring 232 ensure the reliability of the entire earphone 10.

[0075] In one embodiment of this application, the sealing plug 230 can be integrally formed with the connecting part 220 and the fixing part 210, and all of them are elastic bodies. That is, the material of the sealing structure 200 can be silicone or rubber. In this way, the number of connecting parts of the fixing part 210, the connecting part 220 and the sealing plug 230 can be reduced, and the installation efficiency can be improved.

[0076] Since the sealing plug 230 is an elastic body, the sealing end plate 231 can elastically press against the outer shell 100, reducing the gap between the sealing end plate 231 and the outer shell 100, thereby further improving the dustproof and waterproof performance of the sealing plug 230.

[0077] For further information, please refer to [link / reference]. Figures 5 to 6 The outer side wall of the sealing ring 232 is provided with a second elastic abutment portion 2321. The second elastic abutment portion 2321 is arranged around the outer side wall of the sealing ring 232 and presses against the side wall of the charging hole 100a.

[0078] The material of the second elastic abutment part 2321 can also be an elastic material such as rubber or silicone, and it can be integrally molded with the sealing ring 232, thereby improving the stability of the connection between the second elastic abutment part 2321 and the sealing ring 232, and improving the overall installation efficiency.

[0079] The second elastic contact portion 2321 serves as a vibration energy absorption layer, which can reduce the perception of abnormal noise when wearing the earphone. In addition, the second elastic contact portion 2321 forms a 360° annular sealing strip, thereby reducing the possibility of dust and moisture entering the earphone 10 through the charging hole 100a, and further ensuring the waterproof and waterproof performance of the earphone 10.

[0080] In addition, the second elastic abutment part 2321 (such as a raised elastic arm or a wavy rib) generates a continuous pre-tightening force through the elastic deformation of the material, so that the sealing ring 232 is difficult to fall off from the charging port 100a when the wearer is in motion, thereby ensuring the reliability of the earphone 10.

[0081] Since the interface component 300 is located at the bottom of the charging hole 100a in this embodiment of the application, in order to further improve the sealing of the interface component 300 by the sealing structure 200, in one embodiment of the application, the interface component 300 includes a cover 310 and a charging terminal 320.

[0082] The shroud 310 serves as the frame of the interface assembly 300 and has a mounting cavity. The charging terminal 320 is at least partially disposed within the shroud 310, which can reduce the possibility of the charging terminal 320 being damaged by external forces. The shroud 310 is located at the end of the charging hole 100a that is away from the sealing end plate 231, and the mounting cavity is connected to and communicates with the charging hole 100a.

[0083] Thus, when the sealing plug 230 blocks the charging port 100a, part of the sealing ring 232 can penetrate into the mounting cavity and elastically abut against the side wall of the mounting cavity, which can further reduce the possibility of dust and moisture coming into contact with the charging terminal 320, ensuring the waterproof and dustproof performance of the earphone 10.

[0084] Furthermore, since the portion of the sealing ring 232 extending into the mounting cavity can elastically abut against the side wall of the mounting cavity, the sealing ring 232 is also unlikely to fall out of the mounting cavity when the wearer is in motion, thus ensuring the reliability of the earphone 10.

[0085] Furthermore, this application embodiment also provides a sealing structure 200, which includes a fixing part 210, a connecting part 220, and a sealing plug 230. The connecting part 220 connects the fixing part 210 and the sealing plug 230. The fixing part 210 is located to the side of the sealing plug 230, and a portion of the fixing part 210 is bent toward the sealing plug 230. This sealing structure 200 can be used in electronic products such as headphones, watches, and cameras, thereby improving the sealing performance of electronic products.

[0086] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0087] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A sealing structure, characterized in that, include: The device includes a fixing part, a connecting part, and a sealing plug. The connecting part connects the fixing part and the sealing plug. The fixing part is located to the side of the sealing plug, and a portion of the fixing part is bent toward the sealing plug.

2. The sealing structure according to claim 1, characterized in that, The fixing part includes: A first fixed section, one end of which is connected to the connecting part, and the other end extending toward the sealing plug; and The second fixing segment is connected to the end of the first fixing segment away from the connecting part, and is set at an angle to the first fixing segment.

3. The sealing structure according to claim 2, characterized in that, The outer side wall of the first fixed section is provided with a first elastic abutment portion; And / or, the outer side wall of the first fixed segment is provided with a second elastic abutment portion, and the second elastic abutment portion forms a limiting surface on one side facing the first fixed segment.

4. The sealing structure according to claim 3, characterized in that, The axis of the first elastic abutment portion is set at an angle to the axis of the second elastic abutment portion.

5. The sealing structure according to claim 2, characterized in that, The obtuse angle between the first fixed segment and the second fixed segment is A, where A satisfies: 100°≤A≤130°; And / or, the acute angle between the first fixed segment and the arrangement direction of the sealing plug and the connecting part is B, where B satisfies: 10°≤B≤30°.

6. An earphone, characterized in that, include: The outer casing has a charging hole that penetrates the outer surface of the outer casing. A sealing structure includes a fixing part, a connecting part, and a sealing plug. The fixing part is located inside the housing and connected to the housing. The fixing part is located to the side of the charging port. A portion of the fixing part is bent toward the sealing plug. The connecting part is located outside the housing and connected to the fixing part. The sealing plug is connected to the connecting part. The sealing structure is configured such that the sealing plug can be inserted into the charging port to block the charging port.

7. The earphone according to claim 6, characterized in that, The fixing part includes: A first fixed section, one end of which is connected to the connecting part, and the other end extending toward the sealing plug; and The second fixing segment is connected to the end of the first fixing segment away from the connecting part, and is set at an angle to the first fixing segment.

8. The earphone according to claim 7, characterized in that, The housing is provided with an installation channel that extends through the outer and inner surfaces of the housing, and the first fixing section is located within the installation channel. The outer side wall of the first fixed section is provided with a first elastic abutment, which abuts against the inner wall of the installation channel; And / or, the outer side wall of the first fixed section is provided with a second elastic abutment portion, the second elastic abutment portion forms a limiting surface on one side facing the first fixed section, and the inner wall of the installation channel forms a mating surface that abuts against the limiting surface.

9. The earphone according to claim 8, characterized in that, The axis of the first elastic abutment portion is set at an angle to the axis of the second elastic abutment portion.

10. The earphone according to claim 7, characterized in that, The obtuse angle between the first fixed segment and the second fixed segment is A, where A satisfies: 100°≤A≤130°; And / or, the acute angle between the first fixed segment and the arrangement direction of the sealing plug and the connecting part is B, where B satisfies: 10°≤B≤30°.

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