Earphone device and earplug member thereof

Abstract

An earphone device comprises an earphone main body, a sound guide tube extending to the earphone main body, an annular magnet accommodated in the sound guide tube, a combination groove recessed inwards from the outer surface of the sound guide tube, and an earplug member sleeved on the sound guide tube. A lining tube is embedded in the earplug piece, the lining tube is made of paramagnetic materials, and the lining tube is aligned with the annular magnet on the sound guide tube. Through the magnetic attraction force between the lining tube and the annular magnet, the earplug piece can be stably combined on the sound guide tube. And an elastic piece is accommodated in the lining tube, is exposed out of the inner side of the lining tube and is clamped in the combination groove, so that the wearing stability of the earphone device is improved.

Description

Technical Field

[0001] This utility model relates to an earphone device, and more particularly to an in-ear earphone device with an improved connection between the earpiece and the earphone body. Background Technology

[0002] In-ear headphones are lightweight and portable, but each user's ear canal structure is different. Manufacturers usually provide different sizes of ear tips for users to replace. However, the commonly available replacement ear tips are more likely to detach from the headphone shell, causing inconvenience in use.

[0003] For example, Chinese Utility Model Patent Publication No. 211406231 discloses an earphone with replaceable ear tips, comprising a shell and an ear tip fitted onto the shell. The front end of the shell has a front shell, and the ear-entry end of the front shell extends a connecting post. The connecting post has a first annular groove, and the shell also has a second annular groove. The ear tip comprises a cylindrical inner layer and a conical outer layer. A sound outlet is formed in the inner layer, and a first annular protrusion is provided on the inner surface of the inner layer. A second annular protrusion is provided on the inner surface of the outer layer. The sound outlet is fitted onto the connecting post, the first annular protrusion engages with the first annular groove, and the second annular protrusion engages with the second annular groove, thereby achieving positioning and fixation between the shell and the ear tip. However, in this structural design, since the ear tip is made of flexible soft rubber material, it is easily deformed by external impact, causing the first and second annular protrusions to loosen from the first and second annular grooves, thus affecting the stability of the earphone.

[0004] Given the above shortcomings, it is necessary to improve the connection structure between in-ear headphones and earbud components. Summary of the Invention

[0005] This utility model relates to an earphone device, and more particularly to an earphone device with an improved connection structure between the earbud and the earphone body.

[0006] To overcome the shortcomings of existing technologies, this utility model discloses an earphone device, comprising an earphone body with an internal space inside. A sound guide tube is disposed on the outer surface of the earphone body, and the sound guide tube is hollow and communicates with the internal space. A ring magnet is disposed within the wall of the sound guide tube. An earplug is fitted onto the sound guide tube. An inner liner tube, made of paramagnetic material and disposed within the earplug, is aligned with and attracts the ring magnet at the position of the sound guide tube.

[0007] Furthermore, the inner liner tube is provided with a base, a connecting part and a fixing part in sequence from front to back, wherein the base is configured as a circular tube structure, the connecting part is configured as a tapered tube structure that is wider at the front and narrower at the back, and the fixing part is configured as a tube structure with an arc-shaped cross section.

[0008] Furthermore, the inner liner tube is provided with an elastic element inside, and the inner liner tube has an inner tube wall and an outer tube wall. An interlayer space is provided between the inner tube wall and the outer tube wall. The inner tube wall and the outer tube wall are kept parallel to each other at the base and the connecting part, and extend inward and outward respectively at the fixed part to form a receiving space for accommodating the elastic element. The inner tube wall has a slot at the fixed part, and the slot communicates with the receiving space, so that the elastic element is exposed through the slot of the receiving space.

[0009] Furthermore, the inner liner tube includes at least one perforation through the base, the perforation cutting through the inner tube wall and the outer tube wall and communicating with the interlayer space.

[0010] Furthermore, the outer surface of the sound tube is recessed inward to form a snap-fit ​​groove, the outer surface of the snap-fit ​​groove is recessed inward to form an annular arc-shaped connecting groove, the inner surface of the earplug extends inward to form a snap-fit ​​portion that engages with the snap-fit ​​groove, the fixing portion engages with the snap-fit ​​portion, the slot is aligned with the connecting groove, and the elastic element protrudes from the inner side of the snap-fit ​​portion and is disposed in the connecting groove.

[0011] Furthermore, the sound guide tube includes a sound outlet hole penetrating the interior of the sound guide tube, a receiving groove extending radially from the middle section of the sound outlet hole, and a stop groove extending radially from the rear side of the receiving groove. The connecting groove is correspondingly disposed on the outer side of the receiving groove. The front end of the receiving groove forms an abutment surface adjacent to the side of the sound outlet hole. The annular magnet is received in the receiving groove and the front end of the annular magnet abuts against the abutment surface. The headphone device also includes a stop member, which is received in the stop groove and blocks one side of the annular magnet.

[0012] Furthermore, the front end of the sound guide tube is provided with a guide portion, which is located at the front end of the snap-fit ​​groove. The guide portion is configured as a tapered structure that is narrower at the front and wider at the back. The outer diameter of the guide portion is larger than the outer diameter of the snap-fit ​​groove. The inner periphery at the rear end of the snap-fit ​​portion is inclined inward to form a guide slope.

[0013] This utility model also discloses an earplug component, comprising an ear sleeve having a sleeve portion and a snap-fit ​​portion extending inwardly from the inner sidewall of the sleeve portion. An inner liner tube, made of paramagnetic material and embedded inside the sleeve portion, has a fixing portion at one end that engages with the snap-fit ​​portion, and a slot is formed on the inner side of the fixing portion. An elastic member is housed inside the fixing portion, protruding from the slot and exposed from the inner side of the snap-fit ​​portion.

[0014] Furthermore, the inner liner tube is provided with a base, a connecting part, and a fixing part in sequence from front to back. The base is configured as a circular tube structure, the connecting part is configured as a tapered tube structure that is wider at the front and narrower at the back, and the fixing part is configured as a tube structure with an arc-shaped cross-section. The inner liner tube has an inner tube wall and an outer tube wall, and an interlayer space is provided between the inner tube wall and the outer tube wall. The inner tube wall and the outer tube wall are kept parallel to each other at the positions of the base and the connecting part, and extend inward and outward respectively at the fixing part to form a receiving space for accommodating the elastic element. The slot is formed in the inner tube wall.

[0015] Furthermore, the inner liner tube includes at least one perforation through the base, the perforation cutting through the inner tube wall and the outer tube wall and communicating with the interlayer space.

[0016] In summary, this utility model provides an earphone device comprising an earphone body, a sound guide tube extending from the earphone body, an annular magnet housed in the sound guide tube, a mating groove recessed inward from the outer surface of the sound guide tube, and an earbud fitting fitted onto the sound guide tube. An inner liner tube, made of paramagnetic material, is embedded inside the earbud fitting and aligned with the annular magnet on the sound guide tube. The magnetic attraction between the inner liner tube and the annular magnet securely attaches the earbud fitting to the sound guide tube. Furthermore, an elastic member is housed inside the inner liner tube, protruding from the inner side of the inner liner tube and engaged in the mating groove, thereby improving the wearing stability of the earphone device. Attached Figure Description

[0017] Figure 1 This is a perspective view of the headphone device of this utility model.

[0018] Figure 2 This is an exploded view of the headphone device of this utility model.

[0019] Figure 3 This is a partial exploded view of the headphone device of this utility model.

[0020] Figure 4 The earplug component of this utility model's headphone device is along Figure 1A cross-sectional view of line II in the diagram.

[0021] Figure 5 The inner liner tube and elastic element of this utility model earplug are along Figure 1 A cross-sectional view of line II in the diagram.

[0022] Figure 6 This utility model headphone device follows Figure 1 Partial cross-sectional view of line II in the diagram.

[0023] Figure 7 The front shell edge of the headphone device of this utility model Figure 1 A cross-sectional view of line II in the diagram.

[0024] Figure 8 This is another exploded view of the headphone device of this utility model.

[0025] Figure 9 This is another exploded view of the headphone device of this utility model. Detailed Implementation

[0026] To illustrate the technical content, structural features, objectives, and technical effects of this utility model in detail, the following embodiments are provided in conjunction with the accompanying drawings.

[0027] Please see Figures 1 to 3 as well as Figure 6 This utility model discloses an earphone device 200, comprising an earphone body 4, an internal space disposed within the earphone body 4, a sound guide tube 51 disposed within the earphone body 4, the sound guide tube 51 being a hollow tubular structure and communicating with the internal space, an annular magnet 6 disposed within the wall of the sound guide tube 51, and an earplug 100 disposed on the sound guide tube 51. The earplug 100 comprises an ear sleeve 3 and an inner liner tube 1 embedded inside the ear sleeve 3. The inner liner tube 1 is made of paramagnetic material and is a hollow cylindrical structure. The inner liner tube 1 and the annular magnet 6 are aligned with each other on the sound guide tube 51. Through the magnetic attraction between the inner liner tube 1 and the annular magnet 6, the earplug 100 is firmly attached to the sound guide tube 51, thereby improving the wearing stability of the earphone device 200.

[0028] Please see Figure 2 and Figure 3A front shell 5 is provided on one side of the earphone body 4, and the front shell 5 and the earphone body 4 together define the internal space. The sound guide tube 51 extends from the outer surface of the front shell 5, and the outer surface of the sound guide tube 51 is recessed inward to form a connecting groove 513, which is a ring-shaped arc groove. The earplug 100 also includes an elastic member 2 housed inside the inner liner tube 1. The elastic member 2 is a ring-shaped spring coil, and the inner periphery of the elastic member 2 protrudes from the inner side of the inner liner tube 1 and extends out of the inner surface of the ear sleeve 3, so that the elastic member 2 is engaged in the connecting groove 513, thus the earplug 100 can be more securely attached to the sound guide tube 51.

[0029] Please see Figure 3 and Figure 5 The inner liner tube 1 is provided with a base 11, a connecting part 12, a fixing part 13, and an extension part 14 in sequence from front to back. The base 11 is a cylindrical tube structure, the connecting part 12 is a tapered tube structure that is wider at the front and narrower at the back, the fixing part 13 is a tubular structure with an arc-shaped cross-section, and the extension part 14 extends horizontally from the rear side of the fixing part 13. The inner liner tube 1 has an inner tube wall 16 and an outer tube wall 17, and a sandwich space 15 is provided between the inner tube wall 16 and the outer tube wall 17. The inner tube wall 16 and the outer tube wall 17 are parallel to each other at the positions of the base 11, the connecting part 12, and the extension part 14, and extend inward and outward from the fixing part 13 respectively to form a receiving space 19 for accommodating the elastic member 2. The inner tube wall 16 has a slot 131 at the location of the fixing part 13, which communicates with the receiving space 19. The slot 131 is aligned with the opening of the connecting groove 513, so that the elastic member 2 is exposed from the slot 131 of the receiving space 19 of the inner tube wall 16 to engage with the connecting groove 513. In this embodiment, the cross-section of the fixing part 13 and the cross-section of the connecting groove 513 together form a circular cross-section. The elastic member 2 is set as a circular cross-section annular spring, and the cross-sectional shape of the elastic member 2 matches the cross-sectional shape of the fixing part 13 and the cross-sectional shape of the connecting groove 513.

[0030] Please see Figure 4 and Figure 5In manufacturing the earplug 100, the outer periphery of the elastic member 2 is first fixed to the fixing portion 13 of the outer tube wall 17 by welding. Then, the inner tube wall 16 is installed parallel to the inner side of the outer tube wall 17, and the outer periphery of the elastic member 2 is fixed to the fixing portion 13 of the inner tube wall 16 by welding, so that the fixing portion 13 covers the elastic member 2. Next, the inner liner tube 1 is fixed to the ear sleeve 3 by injection molding, and the inner periphery of the elastic member 2 is exposed from the inner surface of the ear sleeve 3. The ear sleeve 3 can be made of elastic soft materials such as silicone or rubber, allowing users to replace it with different sizes according to their personal preferences, thereby improving wearing comfort. Furthermore, compared with the prior art, the inner liner tube 1 is made of a rigid material, thus improving the overall structural strength of the ear sleeve 3. Furthermore, the inner liner tube 1 includes at least one perforation 18 penetrating the base 11, the perforation 18 cutting through the inner tube wall 16 and the outer tube wall 17 and communicating with the interlayer space 15. During the injection molding process, the perforation 18 can be filled by molten rubber and, after the rubber solidifies, acts as a limiting force, thereby increasing the bonding force between the ear sleeve 3 and the inner liner tube 1.

[0031] Please see Figures 4 to 7 To allow the earpiece 3 to fit over the sound guide tube 51, the sound guide tube 51 is provided with a snap-fit ​​groove 512. The snap-fit ​​groove 512 is formed by an inward recess from the outer surface of the middle section of the sound guide tube 51, and the connecting groove 513 is formed by an inward recess from the outer surface of the middle section of the snap-fit ​​groove 512. The earpiece 3 includes a hollow sleeve portion 31 for fitting over the sound guide tube 51, an outer cover 32 surrounding the sleeve portion 31, and a snap-fit ​​portion 33 extending inward from the inner sidewall of the sleeve portion 31 and engaging with the snap-fit ​​groove 512. A deformable space is formed between the outer cover 32 and the sleeve portion 31, allowing the outer cover 32 to elastically deform appropriately to fit the shape of the user's ear canal. In this embodiment, the base 11, the connecting part 12 and the extension part 14 are covered inside the sleeve part 31, the fixing part 13 is covered inside the buckle part 33, and the inner periphery of the elastic member 2 is exposed inside the inner periphery of the buckle part 33, so that the elastic member 2 and the connecting groove 513 limit each other, thereby realizing the positioning and holding of the earplug 100.

[0032] Please see Figure 3 , Figure 6 as well as Figure 7The front shell 5 further includes a sound outlet 511 penetrating the interior of the sound guide tube 51 and communicating with the internal space, a receiving groove 514 radially extending from the middle section of the sound outlet 511, and a stop groove 515 radially extending from the rear side of the receiving groove 514. The connecting groove 513 is correspondingly disposed on the outer side of the receiving groove 514. The front end of the receiving groove 514 adjacent to the side of the sound outlet 511 forms an abutment surface 516. The annular magnet 6 is received in the receiving groove 514, and the front end of the annular magnet 6 abuts against the abutment surface 516 to prevent the annular magnet 6 from moving forward. The headphone device 200 further includes a stop member 7, which is received in the stop groove 515 and blocks the rear side of the annular magnet 6 to prevent the annular magnet 6 from moving backward. The annular magnet 6 is configured as a hollow cylinder, and the stop 7 is configured as a C-shaped buckle. The inner diameter of the stop 7 is smaller than the outer diameter of the annular magnet 6, thereby preventing the annular magnet 6 from coming out of the stop 7. In this embodiment, the inner diameter of the stop 7 is larger than the inner diameter of the annular magnet 6, but it is not limited to this.

[0033] Please see Figure 4 , Figure 6 as well as Figure 7 To facilitate the smooth installation of the earpiece 3 into the sound guide tube 51, a guide portion 517 is provided at the front end of the sound guide tube 51. The guide portion 517 is located at the front end of the snap-fit ​​groove 512 and is configured as a tapered structure that is narrower at the front and wider at the back. The outer diameter of the guide portion 517 is larger than the outer diameter of the snap-fit ​​groove 512 to prevent the assembled earpiece 3 from coming out forward. The earpiece 3 includes a guide slope 331, which is formed by inwardly curving from the inner periphery at the rear end of the snap-fit ​​portion 33 to reduce the resistance when the earpiece 3 is assembled into the snap-fit ​​groove 512 along the guide portion 517.

[0034] During assembly, the guide portion 517 pushes against the elastic member 2 along the assembly direction, causing the elastic member 2 to undergo inward elastic deformation towards the inner wall of the fixing portion 13. When the snap-fit ​​portion 33 aligns with the snap-fit ​​groove 512, the elastic member 2 springs back to its original position towards the groove 513. At this time, the inner liner tube 1 and the annular magnet 6 generate the maximum magnetic force, thereby causing the elastic member 2 to snap into the groove 513, making the earplug 100 more securely attached to the sound guide tube 51. When the user removes the earplug 100, the snap-fit ​​portion 33 moves forward out of the guide portion 517. The snap-fit ​​groove 512 and the guide portion 517 push against the elastic member 2 along the disassembly direction and undergo inward elastic deformation towards the inner wall of the fixing portion 13. The movement of the earplug 100 further away weakens the magnetic attraction between the inner liner tube 1 and the annular magnet 6, facilitating the elastic member 2 to disengage from the groove 513.

[0035] Please see Figure 3 , Figure 8 as well as Figure 9 The headphone body 4 includes a speaker unit 41 housed within the internal space. When the headphone device 200 is worn, the sound outlet 511 faces the ear, and the sound emitted by the speaker unit 41 can be transmitted to the ear through the sound outlet 511. The front shell 5 contains a first dustproof sheet 52 located behind the stop member 7 and positioned at the junction of the internal space and the sound outlet 511, thereby preventing external dust or foreign objects from entering the internal space. The front shell 5 also has a pressure relief hole 53 connected to the internal space. The pressure relief hole 53 is designed to balance the pressure between the internal and external environments of the internal space, maintaining good sound quality for the headphone device 200. A second dustproof sheet 54 is positioned at the junction of the pressure relief hole 53 and the internal space, thereby preventing external dust or foreign objects from entering the internal space. The first dustproof sheet 52 and the second dustproof sheet 54 can be made of breathable materials such as metal mesh, nylon cloth, or mesh fabric.

[0036] In summary, this utility model provides an earphone device 200, comprising an earphone body 4, a sound guide tube 51 extending from the earphone body 4, an annular magnet 6 housed within the sound guide tube 51, a connecting groove 513 recessed from the outer surface of the sound guide tube 51, and an earplug 100 fitted onto the sound guide tube 51. The earplug 100 includes an ear sleeve 3, an inner liner tube 1 embedded in the ear sleeve 3, and an elastic member 2 housed within the inner liner tube 1. The inner liner tube 1 is made of paramagnetic material and is aligned with the annular magnet 6 on the sound guide tube 51. Through the magnetic attraction between the inner liner tube 1 and the annular magnet 6, the earplug 100 is securely fitted onto the sound guide tube 51, and the elastic member 2 protrudes from the inner side of the inner liner tube 1 and is engaged in the connecting groove 513, thereby effectively improving the wearing stability of the earphone device 200.

Claims

1. A headphone device, characterized in that, The device comprises: an earphone body having an internal space; a sound guide tube disposed on the outer surface of the earphone body, the sound guide tube being hollow and communicating with the internal space; and an annular magnet disposed within the wall of the sound guide tube. An earplug fitting is fitted onto the sound guide tube; and an inner liner tube is made of paramagnetic material and disposed within the earplug fitting, wherein the inner liner tube and the annular magnet are aligned with each other and attract each other at the position of the sound guide tube.

2. The earphone device according to claim 1, characterized in that: The inner liner tube is provided with a base, a connecting part and a fixing part in sequence from front to back, wherein the base is configured as a circular tube structure, the connecting part is configured as a tapered tube structure that is wider at the front and narrower at the back, and the fixing part is configured as a tube structure with an arc-shaped cross section.

3. The earphone device according to claim 2, characterized in that: The inner liner tube has an elastic element inside. The inner liner tube has an inner tube wall and an outer tube wall. There is a space between the inner tube wall and the outer tube wall. The inner tube wall and the outer tube wall are parallel to each other at the base and the connecting part. They extend inward and outward at the fixed part to form a receiving space for accommodating the elastic element. The inner tube wall has a slot at the fixed part. The slot communicates with the receiving space, so that the elastic element is exposed through the slot of the receiving space.

4. The earphone device according to claim 3, characterized in that: The inner liner tube includes at least one through-hole that penetrates the base, the through-hole cutting through the inner tube wall and the outer tube wall and communicating with the interlayer space.

5. The earphone device according to claim 3, characterized in that: The outer surface of the sound tube is recessed inward to form a snap-fit ​​groove, and the outer surface of the snap-fit ​​groove is recessed inward to form an annular arc-shaped connecting groove. The inner surface of the earplug extends inward to form a snap-fit ​​part that engages with the snap-fit ​​groove. The fixing part is engaged in the snap-fit ​​part. The slot is aligned with the connecting groove. The elastic element protrudes from the inner side of the snap-fit ​​part and is disposed in the connecting groove.

6. The earphone device according to claim 5, characterized in that: The sound guide tube includes a sound outlet hole penetrating the interior of the sound guide tube, a receiving groove extending radially from the middle section of the sound outlet hole, and a stop groove extending radially from the rear side of the receiving groove. The connecting groove is correspondingly disposed on the outer side of the receiving groove. The front end of the receiving groove forms an abutment surface adjacent to the side of the sound outlet hole. The annular magnet is received in the receiving groove and the front end of the annular magnet abuts against the abutment surface. The headphone device also includes a stop member, which is received in the stop groove and blocks one side of the annular magnet.

7. The earphone device according to claim 5, characterized in that: The front end of the sound guide tube is provided with a guide part, which is located at the front end of the buckle groove. The guide part is configured as a tapered structure that is narrow at the front and wide at the back. The outer diameter of the guide part is larger than the outer diameter of the buckle groove. The inner periphery at the rear end of the buckle part is inclined inward to form a guide slope.

8. An earplug device, characterized in that, The device comprises: an ear cover having a sleeve portion and a snap-fit ​​portion extending inward from the inner sidewall of the sleeve portion; an inner liner tube made of paramagnetic material and embedded inside the sleeve portion, one end of the inner liner tube having a fixing portion that engages with the snap-fit ​​portion, the fixing portion having a slot on its inner side; and an elastic member housed inside the fixing portion, the elastic member protruding from the slot and exposed from the inner side of the snap-fit ​​portion.

9. The earplug according to claim 8, characterized in that: The inner liner tube is provided with a base, a connecting part and a fixing part in sequence from front to back. The base is a circular tube structure, the connecting part is a tapered tube structure that is wider at the front and narrower at the back, and the fixing part is a tube structure with an arc-shaped cross-section. The inner liner tube has an inner tube wall and an outer tube wall. There is an interlayer space between the inner tube wall and the outer tube wall. The inner tube wall and the outer tube wall are parallel to each other at the base and the connecting part, and extend inward and outward respectively at the fixing part to form a receiving space for accommodating the elastic element. The slot communicates with the receiving space and the slot is formed in the inner tube wall.

10. The earplug according to claim 9, characterized in that: The inner liner tube includes at least one through-hole that penetrates the base, the through-hole cutting through the inner tube wall and the outer tube wall and communicating with the interlayer space.

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