Earphone and earphone device

Abstract

This application provides an earphone and an earphone device, belonging to the field of earphone technology. The earphone includes a first earphone body, a connecting arm, and a second earphone body. The connecting arm connects the first and second earphone bodies and includes an exposed portion located outside both the first and second earphone bodies. The outer surface of the exposed portion is made of a low surface energy material with a surface energy less than or equal to 20 mN / m. This design provides the earphone's connecting arm with better dirt resistance, mitigating the problem of dust easily accumulating on its outer surface.

Description

Technical Field

[0001] This application relates to the field of headphone technology, and in particular to a headphone and headphone device. Background Technology

[0002] Clip-on wireless earbuds can be held in place by the ear, reducing ear canal allergies and damage. Users can be aware of changes in their surroundings at any time, reducing the risk of accidents. They are suitable for long-term wear during exercise, commuting, and daily work. Clip-on wireless earbuds include a left earbud and a right earbud. Both the left and right earbuds include a first earbud body, a second earbud body, and a connecting arm. The connecting arm connects the first and second earbud bodies. However, during earbud use, the outer surface of the connecting arm is prone to accumulating dust. Summary of the Invention

[0003] This application provides an earphone and an earphone device. The earphone's connecting arm has good anti-fouling properties, which can improve the problem of dust easily accumulating on the outer surface of the earphone's connecting arm.

[0004] In a first aspect, embodiments of this application provide an earphone, which includes a first earphone body, a connecting arm, and a second earphone body. The connecting arm connects the first earphone body and the second earphone body, and includes an exposed portion located outside the first earphone body and outside the second earphone body. The material of the outer surface of the exposed portion is a low surface energy material, and the surface energy of the low surface energy material is less than or equal to 20 mN / m.

[0005] Because the material of the exposed outer surface of the connecting arm is a low surface energy material with a surface energy of less than or equal to 20mN / m, the low surface energy of the exposed outer surface makes it difficult for dust, grease, and other foreign objects to form a tight physical adsorption or chemical interaction. This makes it difficult for dust and other foreign objects to adhere to the exposed outer surface, keeping it clean for a longer period of time, improving the headphone's resistance to dirt and enhancing its aesthetics.

[0006] In some possible implementations, the low surface energy material is a fluororubber or fluorosilicone rubber, with a surface energy of 20 mN / m or less. This results in a low surface energy on the exposed outer surface, making it less likely for dust and other foreign matter to adhere to it. Furthermore, when the low surface energy material is fluororubber, its excellent anti-aging properties give the exposed outer surface high anti-aging properties, reducing the probability of aging failure during long-term use.

[0007] In some possible implementations, the connecting arm includes a tube body made of a low surface energy material, with the outer surface of the tube body being a bare portion. This design, using a low surface energy material for the tube body, makes it less prone to attracting dust and other foreign matter, thus giving the tube body better resistance to dirt accumulation.

[0008] In some possible implementations, the connecting arm further includes two connectors, which are fixedly connected to both ends of the tube body and respectively to the first and second earphone bodies. A portion of each connector is located inside the tube body, and another portion is located outside the tube body. The inner wall of the tube body is provided with multiple first grooves, and each connector has at least one first protrusion. The first protrusions correspond one-to-one with the first grooves, and the first protrusions engage with the corresponding first grooves.

[0009] In this way, by having the first protrusion engage with the first groove, the connection area between the pipe body and the connector can be increased, thereby improving the strength of the connection between the pipe body and the connector, effectively preventing the connector from separating from the pipe body, and ensuring the stability of the structure.

[0010] In some possible implementations, at least one first protrusion is an annular protrusion surrounding the centerline of the connector, and the corresponding first groove is an annular groove surrounding the connector. This configuration can further increase the connection area between the pipe body and the connector, and further improve the connection reliability between the pipe body and the connector.

[0011] In some possible implementations, each connector has only one first protrusion. Thus, assuming the first protrusion is annular, setting the number of first protrusions on the connector to one simplifies the connector's structure and helps reduce its manufacturing difficulty.

[0012] In some possible implementations, each connector has at least one second groove on its outer wall and multiple second protrusions on its inner wall. The second protrusions correspond one-to-one with the second grooves and are engaged in the corresponding second grooves.

[0013] This can further increase the contact area between the pipe body and the connector, thereby further improving the reliability of the connection between the pipe body and the connector.

[0014] In some possible implementations, each second protrusion is disposed on the bottom of the first groove and spaced apart from the sidewall of the first groove, with the outer surface of the first protrusion recessed to form the second groove. This arrangement helps to reduce the length of the connector in the longitudinal direction of the connecting arm, thus preventing the connector from becoming too long.

[0015] In some possible implementations, each connector has multiple second grooves on its outer wall, arranged at intervals around the connector's centerline. This arrangement reduces the impact of the second grooves on the connector's strength, while ensuring the overall strength of the connector, provided the second protrusion is positioned at the bottom of the first groove.

[0016] In some possible implementations, the connecting arm also includes a support member and a core wire. The support member is made of shape memory alloy and is partially embedded inside the tube body; both connecting arms have portions of the support member inside. The core wire is located inside the first channel of the tube body. The two openings of the first channel are located at the two end faces of the tube body along its length. The two ends of the core wire extend from the two openings into the interiors of the first and second earphone bodies, respectively, and are used for electrical connection between the first and second earphone bodies. This configuration allows for electrical connection between the first and second earphone bodies. Furthermore, the support member, made of shape memory alloy, allows for adjustment of the connecting arm's shape, improving user comfort when wearing the headphones.

[0017] Secondly, embodiments of this application provide an earphone device, which includes an earphone case and any of the earphones provided in the first aspect, with the earphones disposed inside the earphone case. Attached Figure Description

[0018] Figure 1 A schematic diagram of the headphone device provided in an embodiment of this application;

[0019] Figure 2 A schematic diagram of the structure of an earphone provided in an embodiment of this application;

[0020] Figure 3 This is a schematic diagram illustrating the usage scenario of the headphones provided in an embodiment of this application;

[0021] Figure 4 for Figure 2 The diagram shown is an exploded view of the headphones.

[0022] Figure 5 for Figure 2 A cross-sectional schematic diagram of the headphones shown;

[0023] Figure 6 for Figure 4 A cross-sectional view of the connecting arm along the AA direction;

[0024] Figure 7 for Figure 4 Another cross-sectional view of the connecting arm in the diagram;

[0025] Figure 8 for Figure 4 Another cross-sectional view of the connecting arm in the diagram;

[0026] Figure 9 A schematic diagram of the structure of the first connector provided in an embodiment of this application;

[0027] Figure 10 This is a schematic diagram of a second connector provided in an embodiment of this application;

[0028] Figure 11 This is a cross-sectional schematic diagram of a pipe body provided in an embodiment of this application;

[0029] Figure 12 A cross-sectional schematic diagram of the first connector provided in an embodiment of this application;

[0030] Figure 13 This is a schematic diagram of the first process for preparing the connecting arm provided in an embodiment of this application;

[0031] Figure 14 This is a schematic diagram of the second process for preparing the connecting arm provided in an embodiment of this application;

[0032] Figure 15 This is a schematic diagram of the third process for preparing the connecting arm provided in an embodiment of this application;

[0033] Figure 16 This is a schematic diagram of the fourth process for preparing the connecting arm provided in an embodiment of this application;

[0034] Figure 17 This is a schematic diagram of the fifth process for preparing the connecting arm according to an embodiment of this application.

[0035] Explanation of reference numerals in the attached figures:

[0036] 10. Headphones; 11. First headphone; 12. Second headphone;

[0037] 20. Earphone case; 21. Case body; 22. Protective cover;

[0038] 100. First earphone body; 110. First housing; 111. First connecting hole;

[0039] 200. Second earphone body; 210. Second housing; 211. Second connecting hole;

[0040] 300. Connecting arm;

[0041] 310. Tube body; 311. First channel; 312. Second channel; 313. First groove; 314. Second protrusion; 315. First end face; 316. Second end face;

[0042] 320, Connector; 320a, First Connector; 320b, Second Connector;

[0043] 321. Body portion; 322. First protrusion; 323. Second groove; 324. Third protrusion; 325. First through hole; 326. Second through hole; 327. First cavity; 328. Second cavity;

[0044] 330. Support component; 331. First support part; 332. Second support part; 333. Third support part;

[0045] 340. Core wire;

[0046] 400. Fake steel wire. Detailed Implementation

[0047] The terminology used in the implementation section of this application is for the purpose of explaining specific embodiments of this application only, and is not intended to limit this application.

[0048] Figure 1 This is a schematic diagram of a headphone device provided in an embodiment of this application.

[0049] This application provides an earphone device, such as... Figure 1 As shown, the headphone device includes a headphone case 20 and headphones 10. The headphones 10 are housed within the headphone case 20, which serves to store and charge the headphones 10. The headphones 10 are used to produce sound.

[0050] In some embodiments, the earphone case 20 may also be called a charging case, storage case, charging compartment, or storage compartment.

[0051] The earphone case 20 is used to house the earphones 10, and the earphone case 20 includes a closed state and an open state. For example... Figure 1 As shown, when the headphone case 20 is in the unfolded state, the headphone 10 is exposed, and the user can take out the headphone 10, or the user can place the headphone 10 in the headphone case 20.

[0052] In some embodiments, such as Figure 1 As shown, the earphone case 20 may include a case body 21 and a protective cover 22. The protective cover 22 is rotatably connected to one end of the case body 21 and can rotate relative to the case body 21, allowing the earphone case 20 to switch between a closed and an open state. When the earphone case 20 is in the closed state, the case body 21 and the protective cover 22 together form a storage space for storing the earphones 10.

[0053] In some embodiments, the earphone 10 may be a clip-on wireless earphone, which can reduce ear discomfort and improve wearing comfort.

[0054] In some implementations, the headphones 10 can be open-back headphones. This eliminates the need for the headphones to penetrate deep into the user's ear canal, reducing ear canal allergies and damage, allowing the user to be aware of changes in their surroundings and reducing the risk of accidents.

[0055] like Figure 1 As shown, there are two earphones 10, namely the first earphone 11 and the second earphone 12. The first earphone 11 and the second earphone 12 can be stored in the earphone case 20 at the same time, and the earphone case 20 can charge the first earphone 11 and the second earphone 12.

[0056] In some embodiments, the first earphone 11 and the second earphone 12 may have different shapes. In this case, the first earphone 11 and the second earphone 12 can be distinguished as left and right ears. For example, the first earphone 11 is the left earphone and the second earphone 12 is the right earphone.

[0057] Alternatively, in some embodiments, the first earphone 11 and the second earphone 12 may have the same shape. In this case, the first earphone 11 and the second earphone 12 are not distinguished by left or right ear. That is to say, the first earphone 11 and the second earphone 12 can be worn on the left or right ear, which can improve the portability of the earphone 10.

[0058] Figure 2 This is a schematic diagram of the structure of an earphone provided in an embodiment of this application.

[0059] In the embodiments of this application, see Figure 1 The earphone 10 includes a first earphone body 100, a second earphone body 200, and a connecting arm 300. The connecting arm 300 connects the first earphone body 100 and the second earphone body 200. Specifically, both ends of the connecting arm 300 are fixedly connected to the first earphone body 100 and the second earphone body 200, respectively, so that the first earphone body 100 and the second earphone body 200 can be physically connected through the connecting arm 300. In addition, the first earphone body 100 and the second earphone body 200 can also be electrically connected through the connecting arm 300.

[0060] Figure 3 This is a schematic diagram illustrating the usage scenario of the headphones provided in an embodiment of this application.

[0061] See Figure 3 When a user wears the earphone 10, the first earphone body 100 can be held in place within the user's concha cavity without penetrating deep into the ear canal. Therefore, the earphone 10 in this embodiment is a clip-on wireless earphone. The concha cavity's tolerance is much higher than that of the ear canal; thus, the earphone 10 provided in this embodiment greatly improves wearing comfort compared to in-ear earphones.

[0062] See also Figure 3The second earphone body 200 is located outside the user's ear and on the side opposite to the first earphone body 100. The connecting arm 300 is fastened to the outer edge of the user's ear, extending from the concha to the back of the ear. It can be understood that the connecting arm 300, together with the first earphone body 100 and the second earphone body 200, clamps the user's auricle, thereby wearing the earphone 10 on the ear.

[0063] When a user uses the headphones, the first earphone body 100 can be used to generate sound. For example, the first earphone body 100 may include a speaker to generate sound. The first earphone body 100 can be held inside the user's concha, and the second earphone body 200 is located outside the user's ear and on the side opposite to the first earphone body 100. The second earphone body 200 can be used to pick up external noise for use in the active noise cancellation design system of the headphones 10. Active noise cancellation is a method of identifying unwanted sound sources as noise and eliminating the original noise by generating an "anti-noise" signal, thereby eliminating noise in real time. When the user uses the headphones 10, the noise level in the sound emitted by the headphones 10 is lower, resulting in a better user experience.

[0064] In some embodiments, the centers of the outer surfaces of the first earphone body 100, the second earphone body 200, and the connecting arm 300 are connected to form a plane of symmetry, for example... Figure 2 0-0 face in Figure 2 (The dotted line is used to illustrate this).

[0065] The center of the outer surface of the first earphone body 100 can be understood as the geometric center of the outer surface of the first earphone body 100, the center of the outer surface of the second earphone body 200 can be understood as the geometric center of the outer surface of the second earphone body 200, and the center of the outer surface of the connecting arm 300 can be understood as the geometric center of the outer surface of the connecting arm 300.

[0066] In some possible implementations, the outer surfaces of the first earphone body 100, the second earphone body 200, and the connecting arm 300 can be symmetrical about the plane of symmetry. Thus, the earphone 10 as a whole is symmetrical about the plane of symmetry.

[0067] In some possible implementations, the outer surface of the first earphone body 100 is symmetrical about a first plane of symmetry, the outer surface of the second earphone body 200 is symmetrical about a second plane of symmetry, and the outer surface of the connecting arm 300 is symmetrical about a third plane of symmetry. The first, second, and third planes of symmetry are coplanar. Exemplarily, any one of the first, second, and third planes of symmetry can be parallel to a plane of symmetry (e.g., ...). Figure 2The 0-0 planes are coplanar. Thus, the overall appearance of the earphone 10 is symmetrical, so users do not need to distinguish between left and right ears when using the earphone 10.

[0068] It should be noted that in actual implementation, due to assembly tolerances, any two of the three planes of symmetry (first, second, and third) can have an included angle, which is less than or equal to 1°. For example, the included angle between any two of the three planes of symmetry can be 0.2°, 0.5°, 0.9°, or 1°, etc. For instance, the included angle between the first and second planes of symmetry can be less than 1°, or the included angle between the first and third planes of symmetry can be less than 1°, or the included angle between the second and third planes of symmetry can be less than 1°.

[0069] Figure 4 for Figure 2 The diagram shown is an exploded view of the headphones. Figure 5 for Figure 2 The image shows a cross-sectional view of the headphones.

[0070] In some possible implementations, combining Figure 4 and Figure 5 It is understood that the first earphone body 100 includes a first housing 110, which has a first connecting hole 111 connecting the interior of the first housing 110 to the exterior of the first earphone body 100. The second earphone body 200 includes a second housing 210, which has a second connecting hole 211 connecting the interior of the second housing 210 to the exterior of the second earphone body 200. A first portion of the connecting arm 300 extends into the interior of the first housing 110 through the first connecting hole 111, thus placing a portion of the connecting arm 300 inside the first earphone body 100. A second portion of the connecting arm 300 extends into the interior of the second housing 210 through the second connecting hole 211, thus placing a portion of the connecting arm 300 inside the second earphone body 200. All other portions of the connecting arm 300, except for the first and second portions, are located outside both the first and second earphone bodies 100 and 200.

[0071] In some embodiments, the second shell 210 of the second earphone body 200 can be bean-shaped. It is understood that the bean-shaped design of the second earphone body 200 conforms to the curvature of the user's ear when worn, thus improving wearing comfort.

[0072] In some embodiments, the first housing 110 of the first earphone body 100 may be spherical.

[0073] It should be noted that, in addition to the first housing 110, the first earphone body 100 also includes other components that enable the earphone 10 to function properly. For example, the first earphone body 100 may also include a speaker, a feedback microphone, a bone sensor, a capacitive sensor, a circuit board, and other components located inside the first housing 110.

[0074] It should be noted that, in addition to the second housing 210, the second earphone body 200 also includes other components that enable the earphone 10 to function properly. For example, the second earphone body 200 may also include components located inside the second housing 210, such as an antenna module, battery, motherboard bracket, motherboard, microphone, circuit board, capacitive sensor, and charging terminal.

[0075] In some embodiments, see Figure 4 The connecting arm 300 is roughly U-shaped, which makes the earphone 10 roughly U-shaped. This design makes it easier for the earphone 10 to be clipped onto the ear.

[0076] In some possible implementations, the connecting arm 300 can be deformable, allowing adjustment of the distance between the first earphone body 100 and the second earphone body 200, changing the distance from an initial distance to an adjustable distance. The initial distance can refer to the distance between the first earphone body 100 and the second earphone body 200 when the earphone 10 is not worn on the user's ear. The adjustable distance can refer to the distance after the initial distance has increased or decreased. It should be noted that both the initial distance and the adjustable distance can refer to the distance between the first earphone body 100 and the second earphone body 200, for example, the distance between the outer surfaces of the first earphone body 100 and the second earphone body 200 facing each other, that is, the distance between the two earphone surfaces 10 that first come into contact with the ear.

[0077] Understandably, the earphone 10 equipped with the deformable connecting arm 300 can accommodate users with different ear thicknesses, providing appropriate clamping force for each user and avoiding excessive tightness or looseness that could affect the wearing experience. At the same time, when putting on and taking off the earphone 10, the user can use the connecting arm 300 to increase the distance between the first earphone body 100 and the second earphone body 200 to ensure smooth insertion and removal of the earphone 10, preventing ear deformation due to pressure and improving the user's experience when putting on and taking off the earphone 10.

[0078] In related technologies, the connecting arm has an exposed portion located outside both the first and second earphone bodies. This exposed portion is tangible and visible to the user, and its outer surface constitutes part of the earphone's appearance. However, because the outer surface of the exposed portion is made of thermoplastic polyurethane (TPU), which has high surface energy, it easily attracts dust and other foreign matter, affecting the earphone's aesthetics. Therefore, improving the connecting arm's resistance to dirt and grime has become a pressing issue.

[0079] In view of this, this application provides a connecting arm 300, which includes an exposed portion located outside the first earphone body 100 and outside the second earphone body 200. The material of the outer surface of the exposed portion is a low surface energy material with a surface energy of less than or equal to 20 mN / m.

[0080] Because the material of the exposed outer surface of the connecting arm 300 is a low surface energy material with a surface energy of less than or equal to 20mN / m, the surface energy of the exposed outer surface is low. The exposed outer surface is not easy to form a tight physical adsorption or chemical interaction with foreign matter such as dust and grease. This makes it difficult for dust and other foreign matter to adhere to the exposed outer surface, thus maintaining cleanliness for a longer period of time. This improves the dirt resistance of the earphone 10 and enhances its aesthetics.

[0081] It is understandable that the critical surface energy of dust particles (such as silicates) is typically 50 mN / m. According to wetting theory, when the surface energy of a solid is lower than the critical surface energy of a liquid (or microparticles), the liquid (or microparticles) cannot adhere to the solid surface. Therefore, by using a low surface energy material with a surface area of ​​less than or equal to 20 mN / m as the outer surface of the exposed portion, the van der Waals forces and capillary forces between dust particles and the exposed portion can be significantly weakened, preventing effective adsorption between the dust particles and the exposed portion.

[0082] The specific value of the surface energy of low surface energy materials is not limited here. For example, the surface energy of low surface energy materials may include, but is not limited to, 20 mN / m, 18 mN / m, 14 mN / m, 10 mN / m, 5 mN / m, etc.

[0083] Understandably, the smaller the surface energy of a low surface energy material, the weaker its adsorption force on dust and other foreign objects, and the less likely it is to attract dust.

[0084] In some possible implementations, the low surface energy material can be fluororubber. Fluororubber can include, but is not limited to, fluororubber, polytetrafluoroethylene, etc.

[0085] Because the surface energy of fluororubber is typically between 15-18 mN / m, which is far below the critical surface energy of dust particles, it significantly weakens the van der Waals and capillary forces between dust and fluororubber, preventing effective adsorption and further avoiding the adsorption of dust and other foreign matter on exposed surfaces. Additionally, the high resistivity of fluororubber results in high antistatic properties; it generates almost no static electricity when rubbed, preventing electrostatic dust adsorption. Furthermore, the smooth and even surface of fluororubber after molding allows dust to easily slide off upon contact, thus preventing dust adsorption.

[0086] Furthermore, when the low surface energy material is fluororubber, its excellent anti-aging properties result in high anti-aging performance on the exposed outer surface, reducing the probability of aging failure during long-term use. In addition, fluororubber can be available in a variety of colors, avoiding the monotony of a single color on the outer surface of the connecting arm 300.

[0087] It should be noted that low surface energy materials can be other materials with surface energy below 20 mN / m, in addition to fluororubber. For example, fluorosilicone rubber can be obtained by fluorinating silicone. The surface energy of fluorosilicone rubber can be reduced to below 15 mN / m, which gives the exposed outer surface good anti-fouling properties.

[0088] Figure 6 for Figure 4 A cross-sectional view of the connecting arm along the AA direction.

[0089] For example, see Figure 6 The connecting arm 300 includes a tube body 310, a support member 330, a core wire 340, and two connectors 320. The tube body 310 is sleeved on the support member 330 and the core wire 340, protecting both components and providing insulation for the core wire 340. The core wire 340 transmits electrical signals, and its two ends are electrically connected to the first earphone body 100 and the second earphone body 200, respectively, establishing an electrical connection between them. The support member 330 ensures the connecting arm 300 is in a predetermined shape. The two connectors 320 are a first connector 320a and a second connector 320b, respectively connected to the two ends of the tube body 310 and to the first earphone body 100 and the second earphone body 200, thus physically connecting the connecting arm 300 to both earphone bodies 100 and 200.

[0090] In some embodiments, see Figure 5The first part of the tube body 310 is located inside the first housing 110 of the first earphone body 100, and the second part of the tube body 310 is located inside the second housing 210 of the second earphone body 200. The other parts of the tube body 310, except for the first part and the second part, are located outside the first housing 110 and also outside the second housing 210. At this time, the outer surface of the part of the tube body 310 located outside the first housing 110 and the second housing 210 is the outer surface of the exposed part of the earphone 10. Therefore, the material of the outer surface of the part of the tube body 310 located outside the first earphone body 100 and the second earphone body 200 is a low surface energy material, so that the material of the exposed part of the earphone 10 is a low surface energy material.

[0091] In some embodiments, the material of the outer surface of the portion of the tube 310 located outside the first earphone body 100 and the second earphone body 200 is a low surface energy material.

[0092] Of course, except for the portion of the outer surface of the tube 310 located outside the first earphone body 100 and the second earphone body 200, which is made of a low surface energy material, in some embodiments, the entire outer surface of the tube 310 can be made of a low surface energy material.

[0093] In some possible implementations, the tube body 310 is made of a low surface energy material, and the outer surface of the tube body 310 is partially exposed. This design, where the entire tube body 310 is made of a low surface energy material, makes it less prone to attracting dust and other foreign matter, thus giving the tube body 310 better resistance to dirt accumulation. Furthermore, using a single material for the entire tube body 310 reduces the difficulty of its manufacturing.

[0094] The material of the tube body 310 may include, but is not limited to, fluororubber, fluorosilicone rubber, etc.

[0095] It should be noted that, in addition to being made of a low surface energy material, in some possible implementations, the tube body 310 may also include a core and a surface layer. The core is sleeved on the core wire 340 and the support member 330, and the surface layer is a tubular structure and is sleeved on the outer wall of the core. The surface layer is made of a low surface energy material, and part of the outer surface of the surface layer serves as the outer surface of the exposed part.

[0096] The surface energy of the die can be lower or higher than that of the surface layer, or the surface energy of the die can be the same as that of the surface layer.

[0097] The core material can include, but is not limited to, fluoropolymer, TPU, silicone, and other materials.

[0098] Figure 7 for Figure 4 Another cross-sectional view of the connecting arm in the diagram. Figure 8 for Figure 4 Another cross-sectional view of the connecting arm in the diagram.

[0099] For example, the tube body 310 has a first end and a second end disposed opposite to each other along the length direction of the tube body 310, and two connectors 320 are respectively fixedly connected to the first end and the second end of the tube body 310. See also... Figure 7 The end face of the first end of the tube body 310 is the first end face 315, and the end face of the second end of the tube body 310 is the second end face 316. The first end of the tube body 310 is fixedly connected to the first connector 320a, and the second end of the tube body 310 is fixedly connected to the second connector 320b.

[0100] For example, see Figure 6 The pipe body 310 is provided with a first channel 311 and a second channel 312 spaced apart, both extending along the length of the pipe body 310. See also... Figure 7 The first channel 311 has two openings arranged opposite each other. The two openings of the first channel 311 are located on the first end face 315 and the second end face 316 of the tube body 310, respectively. Both openings of the first channel 311 connect the outside of the tube body 310 with the inside of the first channel 311. See also Figure 8 The second channel 312 has two openings that are arranged opposite each other along the length of the tube 310. Both openings of the second channel 312 are connected to the interior of the first channel 311. Along the length of the tube 310, the two openings of the second channel 312 are located between the two openings of the two first channels 311.

[0101] like Figure 7 As shown, a portion of the core wire 340 is disposed inside the first channel 311 of the tube body 310. The first end of the core wire 340 extends from the opening located on the first end face 315 to the outside of the first channel 311, and the second end of the core wire 340 extends from the opening located on the second end face 316 to the outside of the first channel 311. Therefore, the middle portion of the core wire 340 is located inside the first channel 311, and both ends of the core wire 340 are exposed on the first end face 315 and the second end face 316, respectively. The two ends of the core wire 340 extend from the two openings of the first channel 311 into the interiors of the first earphone body 100 and the second earphone body 200, respectively. This arrangement allows the core wire 340 to be electrically connected to both the first earphone body 100 and the second earphone body 200.

[0102] See also some possible implementations. Figure 6 There is a gap between the core wire 340 and the inner wall of the first channel 311. With this setting, the deformation of the core wire 340 can be less than that of the tube body 310 during the bending process of the connecting arm 300, so that the core wire 340 is not easily broken and has a long service life.

[0103] Figure 9 This is a schematic diagram of a first connector provided in an embodiment of this application.

[0104] In some embodiments, see Figure 9 The first connector 320a has a first through hole 325, which extends through the first connector 320a along its length. (See also...) Figure 7 One end of the first through hole 325 is connected to the inside of the first channel 311, and the other end of the first through hole 325 is connected to the inside of the first earphone body 100, so that the first end of the core wire 340 passes through the first through hole 325 and can extend into the inside of the first earphone body 100.

[0105] Figure 10 This is a schematic diagram of a second connector provided in an embodiment of this application.

[0106] In some embodiments, see Figure 10 The second connector 320b has a second through hole 326, which extends through the second connector 320b along its length. (See also...) Figure 7 One end of the second through hole 326 is connected to the inside of the first channel 311, and the other end of the second through hole 326 is connected to the inside of the second earphone body 200, so that the second end of the core wire 340 passes through the second through hole 326 and can extend into the inside of the second earphone body 200.

[0107] See Figure 8 The support member 330 is partially embedded inside the second channel 312 of the tube body 310, and the support member 330 is also partially disposed inside both connectors 320. That is, the support member 330 includes a first support portion 331, a second support portion 332, and a third support portion 333 connected sequentially along the length of the support member 330. The first support portion 331 is located inside the first connector 320a and is fixedly connected to the first connector 320a. The second support portion 332 is located inside the second channel 312, and the third support portion 333 is located inside the second connector 320b and is fixedly connected to the second connector 320b.

[0108] In some embodiments, see Figure 8 The first connector 320a may also include a first cavity 327, which is spaced apart from the first through hole 325, and the first support portion 331 is located inside the first cavity 327.

[0109] In some embodiments, see Figure 8The second connector 320b may also include a second cavity 328, which is spaced apart from the second through hole 326, and the third support 333 is located inside the second cavity 328.

[0110] In some embodiments, the support member 330 can be made of a deformable metal material, specifically a metal strip. It can also be an elastic metal or other material. For example, the support member 330 can be a metal wire made of a shape memory alloy. It is understood that compared to using ordinary metal materials to fabricate the support member 330, using a shape memory alloy material can keep the two ends of the connecting arm 300 within a certain distance range, preventing the support member 330 from losing its initial shape after repeated stretching. Furthermore, the use of a shape memory alloy material for the support member 330 allows for adjustment of the shape of the connecting arm 300, improving user comfort when wearing the headphones 10.

[0111] See Figure 7 Each connector 320 has a portion located inside the tube body 310 and another portion located outside the tube body 310. Specifically, a portion of the first connector 320a extends into the first channel 311 through an opening located on the first end face 315 and is fixedly connected to the tube body 310. A portion of the second connector 320b extends into the first channel 311 through an opening located on the second end face 316 and is fixedly connected to the tube body 310.

[0112] In some embodiments, see Figure 7 Each connector 320 includes a body portion 321 and at least one first protrusion 322, with each first protrusion 322 fixedly connected to the side of the body portion 321. The inner wall of the tube body 310 is provided with multiple first grooves 313, each corresponding to a first protrusion 322, with the first protrusion 322 engaging with its corresponding first groove 313. By engaging the first protrusion 322 with the first groove 313, the connection area between the tube body 310 and each connector 320 is increased, improving the connection strength between the tube body 310 and the connector 320, effectively preventing separation of the connector 320 from the tube body 310, and ensuring structural stability.

[0113] like Figure 7 As shown, since the connector 320 is located inside the first channel 311, the first groove 313 is a groove formed by the inner wall of the first channel 311 recessing into the outer wall of the tube body 310. In addition, along the length direction of the tube body 310, each of the first grooves 313 is located between the first end face 315 and the second end face 316.

[0114] It is understood that any connector 320 may include one or more first protrusions 322. Furthermore, the number of first protrusions 322 in two connectors 320 may be the same; for example, both first connector 320a and second connector 320b may include one first protrusion 322. Alternatively, the number of first protrusions 322 in two connectors 320 may be different; for example, first connector 320a may include one first protrusion 322, and second connector 320b may include two second protrusions 314.

[0115] It should be noted that, see Figure 7 The structures of the body portion 321 of the first connector 320a and the body portion 321 of the second connector 320b may be different. Alternatively, the structures of the body portion 321 of the first connector 320a and the body portion 321 of the second connector 320b may be the same.

[0116] In some embodiments, the structure of the first protrusion 322 of the first connector 320a may be the same as the structure of the first protrusion 322 of the second connector 320b. Alternatively, in some embodiments, the structure of the first protrusion 322 of the first connector 320a may be different from the structure of the first protrusion 322 of the second connector 320b.

[0117] In some possible implementations, at least one first protrusion 322 is an annular protrusion surrounding the centerline of the connector 320 (e.g. Figure 9 or Figure 10 As shown in the diagram, the first groove 313 corresponding to the annular protrusion is an annular groove surrounding the connector 320. Therefore, the first protrusion 322 is an annular protrusion surrounding the body portion 321, and the first groove 313 is an annular groove surrounding the body portion 321. This arrangement further increases the connection area between the tube body 310 and the connector 320, and further improves the connection reliability between the tube body 310 and the connector 320.

[0118] When the connector 320 is provided with a plurality of first protrusions 322, each of the first protrusions 322 can be an annular protrusion surrounding the body portion 321. In this case, the plurality of first protrusions 322 are arranged at intervals along the length direction of the body portion 321. Alternatively, some of the plurality of first protrusions 322 can be an annular protrusion surrounding the body portion 321, while others are not annular protrusions surrounding the body portion 321.

[0119] In some embodiments, at least one first protrusion 322 of the first connector 320a is an annular protrusion, while the first protrusion 322 of the second connector 320b is not an annular protrusion. Alternatively, in some embodiments, the first protrusion 322 of the first connector 320a is not an annular protrusion, while at least one first protrusion 322 of the second connector 320b is an annular protrusion. Or, in some embodiments, at least one first protrusion 322 of the first connector 320a and at least one second protrusion 314 of the second connector 320b are both annular protrusions.

[0120] In some possible implementations, each connector 320 has one first protrusion 322, and each first protrusion 322 of the connector 320 is an annular protrusion. Therefore, see [link to relevant documentation]. Figure 9 and Figure 10 The first connector 320a and the second connector 320b each have one first protrusion 322, and both the first connector 320a and the second connector 320b have annular protrusions. This simplifies the structure of the connector 320 and helps reduce the manufacturing difficulty of the connector 320.

[0121] In some possible implementations, at least one connector 320 has a plurality of first protrusions 322, all of which are arranged at circumferential intervals along the tube body 310 and surround the body portion 321. In this case, the plurality of first protrusions 322 form an annular structure surrounding the body portion 321. For example, each connector 320 includes a plurality of first protrusions 322, and the plurality of first protrusions 322 of each connector 320 are arranged at circumferential intervals along the tube body 310 and surround the body portion 321.

[0122] It should be noted that when both connectors 320 include a plurality of first protrusions 322 arranged circumferentially along the tube body 310, the number of first protrusions 322 of the two connectors 320 may be the same or different.

[0123] Figure 11 This is a cross-sectional schematic diagram of a pipe body provided in an embodiment of this application.

[0124] In some possible implementations, at least one second groove 323 is provided on the outer wall of each connector 320 (e.g. Figure 9 or Figure 10 The inner wall of the tube body 310 is provided with multiple second protrusions 314 (such as...). Figure 11 As shown), the second protrusion 314 corresponds one-to-one with the second groove 323, and the second protrusion 314 is inserted into the corresponding second groove 323 (as shown). Figure 8(As shown). This can further increase the contact area between the pipe body 310 and the connector 320, and further improve the reliability of the connection between the pipe body 310 and the connector 320.

[0125] For example, see Figure 9 or Figure 10 The second groove 323 is a groove formed by the recess of the outer wall of the connector 320.

[0126] For example, see Figure 11 The second protrusion 314 and the tube body 310 can be an integral structure, and the second protrusion 314 can be a protrusion structure formed by extending the inner wall of the tube body 310.

[0127] In some embodiments, the structures of at least one second groove 323 of the two connectors 320 may be identical. Alternatively, in some embodiments, the structures of at least one second groove 323 of the two connectors 320 may be different.

[0128] In some possible implementations, see 11, each second protrusion 314 is disposed on the bottom of the first groove 313 and spaced apart from the sidewall of the first groove 313, and the outer surface of the first protrusion 322 is recessed to form the second groove 323. This arrangement helps to reduce the length of the connector 320 in the longitudinal direction of the connecting arm 300, and can prevent the connector 320 from being too long.

[0129] It should be noted that, in addition to each second protrusion 314 being disposed on the bottom of the first groove 313, in some embodiments, a portion of the plurality of second protrusions 314 may be disposed on the bottom of the first groove 313, and another portion of the plurality of second protrusions 314 may be disposed at intervals from the first groove 313 along the length direction of the tube body 310 and located outside the first groove 313.

[0130] Figure 12 This is a cross-sectional schematic diagram of the first connector provided in an embodiment of this application.

[0131] See also some possible implementations. Figure 12 Each connector 320 has multiple second grooves 323 on its outer wall. These grooves are spaced apart around the center line of the connector 320 and circumferentially spaced along the tube body 310. Similarly, each connector 320 has multiple second protrusions 314 spaced apart circumferentially along the tube body 310. This arrangement reduces the impact of the second grooves 323 on the strength of the connector 320, ensuring the overall strength of the connector 320.

[0132] The number of second grooves 323 in the two connectors 320 can be the same; for example, the number of second grooves 323 in both connectors 320 can be two. Alternatively, the number of second grooves 323 in the two connectors 320 can be different; for example, the number of second grooves 323 in the first connector 320a can be two, and the number of second grooves 323 in the second connector 320b can be three.

[0133] It should be noted that when multiple second grooves 323 are provided on the outer wall of the connector 320, in addition to being arranged at intervals along the axis of the tube 310 and surrounding the connector 320, in some embodiments, the multiple second grooves 323 on the connector 320 may not be arranged at intervals along the circumference of the tube 310.

[0134] It should be noted that when the multiple second grooves 323 of the connector 320 are spaced apart along the circumference of the tube body 310, such as Figure 10 As shown, the second groove 323 is formed by the recess of the outer surface of the first protrusion 322, which helps to reduce the length of the connector 320 in the length direction of the connecting arm 300, and helps to reduce the length of the connector 320.

[0135] In some possible implementations, at least one connector 320 may have one second groove 323. In this case, the second groove 323 may be an annular groove surrounding the center line of the connector 320, or the second groove 323 may not be an annular groove surrounding the center line of the connector 320. For example, each connector 320 may have one second groove 323, and the second groove 323 of each connector 320 may be an annular groove surrounding the connector 320.

[0136] In some possible implementations, each connector 320 also includes a third protrusion 324 (e.g. Figure 9 or Figure 10 As shown), the third protrusion 324 is fixedly connected to the side wall of the main body 321. The third protrusion 324 and the first protrusion 322 are arranged at intervals along the length direction of the connector 320. Along the length direction of the connector 320, the interval between the first protrusion 322 and the second protrusion 314 is used to accommodate the protrusions (not shown in the figure) of the first earphone body 100 or the second earphone body 200. The protrusions serve as a limiting structure to prevent the connector 320 from falling off the first earphone body 100 or the second earphone body 200 along the length direction of the connector 320.

[0137] Figure 13 This is a schematic diagram of the first process for preparing the connecting arm provided in an embodiment of this application. Figure 14 This is a schematic diagram of the second process for preparing the connecting arm provided in an embodiment of this application. Figure 15This is a schematic diagram of the third process for preparing the connecting arm provided in an embodiment of this application. Figure 16 This is a schematic diagram of the fourth process for preparing the connecting arm provided in an embodiment of this application. Figure 17 This is a schematic diagram of the fifth process for preparing the connecting arm according to an embodiment of this application.

[0138] In some possible ways, when the tube body 310 is made of fluoropolymer, the connecting arm 300 can be manufactured by a half-molding process. For example, the method for manufacturing the connecting arm 300 using a half-molding process is as follows:

[0139] First, the first connector 320a and the second connector 320 are fixed to both ends of the support member 330, respectively, to obtain the following: Figure 13 The first component is shown. Then, based on the first component, the two ends of the dummy wire are passed through the first through hole 325 of the first connector 320a and the second through hole 326 of the second connector 320b, respectively, to obtain the following... Figure 14 The second component is shown. Next, the second component is placed in a molding apparatus, and half of the tube 310 is formed using fluoropolymer, resulting in the following... Figure 15 The third component is shown. After flipping the third component over, it is placed back into the molding equipment, and the other half of the tube 310 is formed using fluoropolymer, resulting in the following... Figure 16 The fourth component is shown. The dummy wire 400 in the fourth component is pulled out, separating it from the tube body 310, the first connector 320a, and the second connector 320b, resulting in the following... Figure 17 The fifth component is shown. Finally, core wire 340 is threaded into the fifth component to obtain the result shown. Figure 4 The connecting arm 300 in the middle.

[0140] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, an indirect connection through an intermediate medium, or the internal connection of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances. The terms "first," "second," "third," "fourth," etc. (if present) are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0141] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the embodiments of this application, and are not intended to limit them. Although the embodiments of this application have been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A type of earphone (10), characterized in that, It includes a first earphone body (100), a connecting arm (300), and a second earphone body (200); The connecting arm (300) connects the first earphone body (100) and the second earphone body (200). The connecting arm (300) includes an exposed portion located outside the first earphone body (100) and outside the second earphone body (200). The material of the outer surface of the exposed portion is a low surface energy material with a surface energy of less than or equal to 20 mN / m.

2. The earphone (10) according to claim 1, characterized in that, The low surface energy material is fluororubber or fluorosilicone rubber.

3. The earphone (10) according to claim 1 or 2, characterized in that, The connecting arm (300) includes a tube (310) made of the low surface energy material, and a portion of the outer surface of the tube (310) is the outer surface of the exposed portion.

4. The earphone (10) according to claim 3, characterized in that, The connecting arm (300) also includes two connectors (320), which are fixedly connected to both ends of the tube (310) and to the first earphone body (100) and the second earphone body (200) respectively. A portion of each connector (320) is located inside the tube (310) and another portion is located outside the tube (310). The inner wall of the tube (310) is provided with a plurality of first grooves (313), and each connector (320) has at least one first protrusion (322). The first protrusion (322) corresponds one-to-one with the first groove (313), and the first protrusion (322) is inserted into the corresponding first groove (313).

5. The earphone (10) according to claim 4, characterized in that, At least one of the first protrusions (322) is an annular protrusion surrounding the center line of the connector (320), and the first groove (313) corresponding to the annular protrusion is an annular groove surrounding the connector (320).

6. The earphone (10) according to claim 5, characterized in that, The number of the first protrusions (322) of each connector (320) is one.

7. The earphone (10) according to claim 4, characterized in that, Each connector (320) has at least one second groove (323) on its outer wall, and the tube body (310) has multiple second protrusions (314) on its inner wall. The second protrusions (314) correspond one-to-one with the second grooves (323), and the second protrusions (314) are inserted into the corresponding second grooves (323).

8. The earphone (10) according to claim 7, characterized in that, Each of the second protrusions (314) is disposed on the bottom of the first groove (313) and spaced apart from the sidewall of the first groove (313), and the outer surface of the first protrusion (322) is recessed to form the second groove (323).

9. The earphone (10) according to claim 8, characterized in that, Each of the connectors (320) has a plurality of second grooves (323) on its outer wall, the plurality of second grooves (323) being arranged at intervals around the center line of the connector (320).

10. The earphone (10) according to claim 4, characterized in that, The connecting arm (300) also includes: The support member (330) is made of shape memory alloy material. A portion of the support member (330) is embedded inside the tube body (310). A portion of the support member (330) is provided inside the two connectors (320). A core wire (340) is partially disposed inside the first channel (311) of the tube body (310). The two openings of the first channel (311) are respectively located on the two end faces of the tube body (310) along the length direction of the tube body (310). The two ends of the core wire (340) extend from the two openings into the interior of the first earphone body (100) and the interior of the second earphone body (200), respectively. The two ends of the core wire (340) are respectively used for electrically connecting the first earphone body (100) and the second earphone body (200).

11. A headphone device, characterized in that, Includes an earphone case (20) and an earphone (10) as described in any one of claims 1 to 10, wherein the earphone (10) is disposed within the earphone case (20).

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