Earphone and audio device

Abstract

The utility model discloses an earphone and audio frequency device, earphone includes first earphone body, connecting arm and second earphone body, the connecting arm includes metal elastic sheet and the FPC strip of laminated fixed on metal elastic sheet, metal elastic sheet is U-shaped, first earphone body includes first shell and sets up first electric element in first shell, and second earphone body includes second shell and sets up second electric element in second shell, metal elastic sheet is connected first shell and second shell respectively, and FPC strip is electrically connected first electric element and second electric element respectively. Compared with traditional clip-on earphone, the connecting arm of the earphone of the utility model only includes the metal elastic sheet and the FPC strip, so that the connecting arm structure is simpler and relatively thinner, and the user experience is better.

Description

Technical Field

[0001] This utility model relates to the field of audio, and in particular to an earphone and an audio device including the earphone. Background Technology

[0002] With the massive expansion of the Bluetooth headset market, Bluetooth headsets have been widely used in people's daily lives. They can be used with electronic devices such as mobile phones and computers to provide users with sound playback functions.

[0003] Clip-on headphones are a new type of compact Bluetooth headset that clips onto the wearer's ear, making them convenient and comfortable to wear.

[0004] Clip-on headphones typically include a first earphone body, a connecting arm, and a second earphone body. The connecting arm typically includes a metal wire as an elastic element, a wire that electrically connects the first and second earphone bodies, and a covering layer that wraps the metal wire and the wire, which makes the connecting arm relatively thick. Utility Model Content

[0005] Therefore, it is necessary to provide an earphone that can solve the above problems and an audio device including the earphone.

[0006] An earphone includes a first earphone body, a connecting arm, and a second earphone body. The connecting arm includes a metal spring and an FPC strip stacked and fixed on the metal spring. The metal spring is U-shaped.

[0007] The first earphone body includes a first outer shell and a first electrical component disposed within the first outer shell; the second earphone body includes a second outer shell and a second electrical component disposed within the second outer shell.

[0008] The metal springs are respectively connected to the first housing and the second housing, and the FPC strips are respectively electrically connected to the first electrical component and the second electrical component.

[0009] In one embodiment, the metal spring is provided with an elongated groove extending along the length of the metal spring, and the FPC strip is fixed in the elongated groove.

[0010] In one embodiment, the elongated groove is located in the middle region of one side of the metal spring, thereby making the cross-section of the metal spring U-shaped.

[0011] In one embodiment, the top ends of the two side walls of the elongated groove extend inward, respectively.

[0012] In one embodiment, the FPC strip is glued and fixed to the metal spring sheet;

[0013] The first electrical component is one or two of the sound-generating unit, battery, and circuit board, and the second electrical component is one or two of the remaining components of the sound-generating unit, battery, and circuit board.

[0014] In one embodiment, one end of the metal spring is provided with a first fixing part that connects to the first housing, and the other end of the metal spring is provided with a second fixing part that connects to the second housing.

[0015] In one embodiment, the first housing includes a first housing and a second housing that are fixedly connected;

[0016] One end of the metal spring is bent to form the first fixing part in a bent shape, and one end of the metal spring passes between the first housing and the second housing, so that the first fixing part is disposed inside the first housing.

[0017] Alternatively, the first fixing part is semi-circular or circular, and the side of the first housing near the second housing is provided with a receiving groove that matches the first fixing part. The first fixing part is disposed in the receiving groove, and after the first housing and the second housing are fixedly connected, the first fixing part is clamped and fixed between the two.

[0018] In one embodiment, one end of the metal spring is bent inward to form a first bend, and the end of the first bend away from the metal spring is bent to form a second bend. The first fixing part includes the first bend and the second bend.

[0019] The first outer shell is provided with a connecting through hole, and the first bent portion passes through the connecting through hole so that the second bent portion is disposed inside the first outer shell.

[0020] In one embodiment, the second housing includes a third housing and a fourth housing that are fixedly connected, the second fixing part is sandwiched between the third housing and the fourth housing, and the third housing, the second fixing part and the fourth housing are fixedly connected in sequence;

[0021] Alternatively, the second earphone body may further include a decorative element, with the second fixing part sandwiched between the second outer shell and the decorative element, and the second outer shell, the second fixing part, and the decorative element being fixedly connected in sequence; or, the second outer shell may include a third shell and a fourth shell that are fixedly connected, with the second fixing part being a protrusion formed by the other end of the metal spring extending to one or both sides, the other end of the metal spring being sandwiched between the third shell and the fourth shell, and the second fixing part being held in the third shell and the fourth shell.

[0022] An audio device includes an earphone case and the aforementioned earphones, the earphones being disposed within the earphone case.

[0023] The connecting arm of this type of earphone includes only the metal spring and the FPC strip. The FPC strip is stacked and fixed on the metal spring, so that the metal spring can also protect the FPC strip.

[0024] Compared with traditional clip-on headphones, the connecting arm of this type of headphone only includes the metal spring and the FPC strip, making the connecting arm structure simpler and relatively thinner, resulting in a better user experience. Attached Figure Description

[0025] Figure 1 This is a three-dimensional structural diagram of the earphone in one direction according to the first embodiment.

[0026] Figure 2 For example Figure 1 The diagram shows a partial exploded view of the headphones in one direction.

[0027] Figure 3 For example Figure 1 The diagram shows a further exploded view of the headphone in one direction.

[0028] Figure 4 This is an enlarged structural schematic diagram of the cross-section of a metal spring sheet according to another embodiment.

[0029] Figure 5 This is a three-dimensional structural diagram of the earphone in one direction according to the second embodiment.

[0030] Figure 6 For example Figure 5 The diagram shows a partial exploded view of the headphones in one direction.

[0031] Figure 7 For example Figure 5 A partially exploded view of the headphones from another direction.

[0032] Figure 8 This is a three-dimensional structural diagram of the earphone in one direction according to the third embodiment.

[0033] Figure 9 For example Figure 8 The diagram shows a partial exploded view of the headphones in one direction.

[0034] Figure 10 For example Figure 8 The diagram shows a further exploded view of the headphone in one direction. Detailed Implementation

[0035] To make the objectives, technical solutions and advantages of this utility model clearer, the embodiments of this utility model will be further described below with reference to the accompanying drawings.

[0036] Combination Figure 1 , Figure 2 and Figure 3 The present invention discloses an earphone 100 according to a first embodiment, including a first earphone body 120, a connecting arm 140 and a second earphone body 160. The connecting arm 140 includes a metal spring 142 and an FPC strip 144 stacked and fixed on the metal spring 142. The metal spring 142 is U-shaped.

[0037] The first earphone body 120 includes a first housing 122 and a first electrical component disposed within the first housing 122, and the second earphone body 160 includes a second housing 162 and a second electrical component disposed within the second housing 162.

[0038] Metal spring 142 is connected to the first outer shell 122 and the second outer shell 162 respectively, and FPC strip 144 is electrically connected to the first electrical component and the second electrical component respectively.

[0039] The connecting arm 140 of this earphone includes only a metal spring 142 and an FPC strip 144. The FPC strip 144 is stacked and fixed on the metal spring 142, so that the metal spring 142 can also protect the FPC strip 144.

[0040] Compared with traditional clip-on headphones, the connecting arm 140 of this invention only includes a metal spring 142 and an FPC strip 144, making the connecting arm 140 structure simpler and relatively thinner, resulting in a better user experience.

[0041] In addition, the metal spring 142 has higher mechanical strength and better durability. The metal spring 142 can be made of aluminum alloy or nickel alloy, which makes the connecting arm 140 lighter.

[0042] Preferably, in conjunction with the accompanying drawings, in this embodiment, the metal spring 142 is provided with an elongated groove 146 extending along the length direction of the metal spring 142, and the FPC strip 144 is fixed in the elongated groove 146.

[0043] The metal spring 142 is provided with a long strip groove 146 extending along the length direction of the metal spring 142. The FPC strip 144 is fixed in the long strip groove 146. On the one hand, the FPC strip 144 can be better stacked and fixed on the metal spring 142. On the other hand, the metal spring 142 can better protect the FPC strip 144.

[0044] More preferably, in conjunction with the accompanying drawings, in this embodiment, the elongated groove 146 is located in the middle region of one side of the metal spring 142, thereby making the cross-section of the metal spring 142 U-shaped.

[0045] Combination Figure 4 In another embodiment of the metal spring 142', the top ends of the two side walls of the elongated groove 146' extend inwards respectively. The top ends of the two side walls of the elongated groove 146' extend inwards respectively, which on the one hand allows the metal spring 142' to better protect the FPC strip 144', and on the other hand can also prevent the two side walls of the elongated groove 146' from cutting the user.

[0046] Preferably, in this embodiment, the FPC strip 144 is glued and fixed to the metal spring 142.

[0047] In this embodiment, the earphone 100 is a clip-on earphone. The first electrical component is one or two of the following: a sound-generating unit, a battery, and a circuit board; the second electrical component is one or two of the remaining components of the sound-generating unit, the battery, and the circuit board.

[0048] For example, the first electrical component is a sound-generating unit, and the second electrical component is a battery and a circuit board; or, the first electrical component is a battery and a circuit board, and the second electrical component is a sound-generating unit; or, the first electrical component is a sound-generating unit and a circuit board, and the second electrical component is a battery; or, the first electrical component is a battery, and the second electrical component is a sound-generating unit and a circuit board.

[0049] In other embodiments, the headphones 100 may also be neckband headphones.

[0050] Preferably, in conjunction with the accompanying drawings, in this embodiment, one end of the metal spring 142 is provided with a first fixing part 148 connected to the first outer shell 122, and the other end of the metal spring 142 is provided with a second fixing part 149 connected to the second outer shell 162.

[0051] Referring to the accompanying drawings, in this embodiment, one end of the metal spring 142 is bent inward to form a first bent portion 1482, and the end of the first bent portion 1482 away from the metal spring 142 is bent to form a second bent portion 1484. The first fixing portion 148 includes the first bent portion 1482 and the second bent portion 1484.

[0052] The first outer shell 122 is provided with a connecting through hole 1222, and the first bent portion 1422 passes through the connecting through hole 1222 so that the second bent portion 1424 is disposed inside the first outer shell 122.

[0053] The above method can better achieve the connection between the metal spring 142 and the first outer shell 122.

[0054] More preferably, referring to the accompanying drawings, the second bending portion 1484 is provided with a mounting hole 1486, and the inner side of the first outer shell 122 is provided with a fixing post 1224, which passes through the mounting hole 1426.

[0055] In this embodiment, the second bend 1484 bends upward. In other embodiments, the second bend 1484 may also bend downward.

[0056] Referring to the accompanying drawings, in this embodiment, the second earphone body 160 further includes a decorative part 166, and the second fixing part 149 is sandwiched between the second outer shell 162 and the decorative part 166. The second outer shell 162, the second fixing part 149 and the decorative part 166 are sequentially fixedly connected.

[0057] Specifically, the second housing 162, the second fixing part 149, and the decorative part 166 can be sequentially fixed and connected by screws or other fasteners.

[0058] Combination Figure 5 , Figure 6 and Figure 7 The present invention discloses a second embodiment of the earphone 200, including a first earphone body 220, a connecting arm 240 and a second earphone body 260. The connecting arm 240 includes a metal spring 242 and an FPC strip 244 stacked and fixed on the metal spring 242. The metal spring 242 is U-shaped.

[0059] The first earphone body 220 includes a first housing 222 and a first electrical component disposed within the first housing 222, and the second earphone body 260 includes a second housing 262 and a second electrical component disposed within the second housing 262.

[0060] Metal spring 242 is connected to the first outer shell 222 and the second outer shell 262 respectively, and FPC strip 244 is electrically connected to the first electrical component and the second electrical component respectively.

[0061] The connecting arm 240 of this earphone includes only a metal spring 242 and an FPC strip 244. The FPC strip 244 is stacked and fixed on the metal spring 242, so that the metal spring 242 can also protect the FPC strip 244.

[0062] Compared with traditional clip-on headphones, the connecting arm 240 of this invention only includes a metal spring 242 and an FPC strip 244, making the connecting arm 240 structure simpler and relatively thinner, resulting in a better user experience.

[0063] In addition, the metal spring 242 has higher mechanical strength and better durability. The metal spring 242 can be made of aluminum alloy or nickel alloy, which makes the connecting arm 240 lighter.

[0064] Preferably, in conjunction with the accompanying drawings, in this embodiment, the metal spring 242 is provided with an elongated groove 246 extending along the length direction of the metal spring 242, and the FPC strip 244 is fixed in the elongated groove 246.

[0065] The metal spring 242 is provided with a long strip groove 246 extending along the length direction of the metal spring 242. The FPC strip 244 is fixed in the long strip groove 246. On the one hand, the FPC strip 244 can be better stacked and fixed on the metal spring 242. On the other hand, the metal spring 242 can better protect the FPC strip 244.

[0066] More preferably, in conjunction with the accompanying drawings, in this embodiment, the elongated groove 246 is located in the middle region of one side of the metal spring 242, thereby making the cross-section of the metal spring 242 U-shaped.

[0067] Preferably, in this embodiment, the FPC strip 244 is glued and fixed to the metal spring sheet 242.

[0068] In this embodiment, the earphone 200 is a clip-on earphone. The first electrical component is one or two of the following: a sound-generating unit, a battery, and a circuit board; the second electrical component is one or two of the remaining components of the sound-generating unit, a battery, and a circuit board.

[0069] For example, the first electrical component is a sound-generating unit, and the second electrical component is a battery and a circuit board; or, the first electrical component is a battery and a circuit board, and the second electrical component is a sound-generating unit; or, the first electrical component is a sound-generating unit and a circuit board, and the second electrical component is a battery; or, the first electrical component is a battery, and the second electrical component is a sound-generating unit and a circuit board.

[0070] In other embodiments, the headphones 200 may also be neckband headphones.

[0071] Preferably, in conjunction with the accompanying drawings, in this embodiment, one end of the metal spring 242 is provided with a first fixing part 248 connected to the first outer shell 222, and the other end of the metal spring 242 is provided with a second fixing part 249 connected to the second outer shell 262.

[0072] Referring to the accompanying drawings, in this embodiment, the first outer shell 222 includes a first housing 2222 and a second housing 2224 that are fixedly connected.

[0073] Preferably, in this embodiment, the first fixing part 248 is semi-circular or annular, and the side of the first housing 2222 near the second housing 2224 is provided with a receiving groove 2226 that matches the first fixing part 248. The first fixing part 248 is disposed in the receiving groove 2226. After the first housing 2222 and the second housing 2224 are fixedly connected, the first fixing part 248 is clamped and fixed between the two.

[0074] Preferably, in this embodiment, the second outer shell 262 includes a third outer shell 2622 and a fourth outer shell 2624 that are fixedly connected, and a second fixing part 249 is sandwiched between the third outer shell 2622 and the fourth outer shell 2624. The third outer shell 2622, the second fixing part 249 and the fourth outer shell 2624 are fixedly connected in sequence.

[0075] Specifically, the third housing 2622, the second fixing part 249 and the fourth housing 2624 can be fixedly connected in sequence by screws or other fasteners.

[0076] Combination Figure 8 , Figure 9 and Figure 10 The present invention discloses a third embodiment of the earphone 300, including a first earphone body 320, a connecting arm 340 and a second earphone body 360. The connecting arm 340 includes a metal spring 342 and an FPC strip 344 stacked and fixed on the metal spring 342. The metal spring 342 is U-shaped.

[0077] The first earphone body 320 includes a first housing 322 and a first electrical component disposed within the first housing 322, and the second earphone body 360 includes a second housing 362 and a second electrical component disposed within the second housing 362.

[0078] Metal spring 342 is connected to the first housing 322 and the second housing 362 respectively, and FPC strip 344 is electrically connected to the first electrical component and the second electrical component respectively.

[0079] The connecting arm 340 of this earphone includes only a metal spring 342 and an FPC strip 344. The FPC strip 344 is stacked and fixed on the metal spring 342, so that the metal spring 342 can also protect the FPC strip 344.

[0080] Compared with traditional clip-on headphones, the connecting arm 340 of this invention only includes a metal spring 342 and an FPC strip 344, making the connecting arm 340 structure simpler and relatively thinner, resulting in a better user experience.

[0081] In addition, the metal spring 342 has higher mechanical strength and better durability. The metal spring 342 can be made of aluminum alloy or nickel alloy, which makes the connecting arm 340 lighter.

[0082] Preferably, in conjunction with the accompanying drawings, in this embodiment, the metal spring 342 is provided with an elongated groove 346 extending along the length direction of the metal spring 342, and the FPC strip 344 is fixed in the elongated groove 346.

[0083] The metal spring 342 is provided with a long strip groove 346 extending along the length direction of the metal spring 342. The FPC strip 344 is fixed in the long strip groove 346. On the one hand, the FPC strip 344 can be better stacked and fixed on the metal spring 342. On the other hand, the metal spring 342 can better protect the FPC strip 344.

[0084] More preferably, in conjunction with the accompanying drawings, in this embodiment, the elongated groove 346 is located in the middle region of one side of the metal spring 342, thereby making the cross-section of the metal spring 342 U-shaped.

[0085] Preferably, in this embodiment, the FPC strip 344 is glued and fixed to the metal spring sheet 342.

[0086] In this embodiment, the earphone 300 is a clip-on earphone. The first electrical component is one or two of the following: a sound-generating unit, a battery, and a circuit board; the second electrical component is one or two of the remaining components of the sound-generating unit, a battery, and a circuit board.

[0087] For example, the first electrical component is a sound-generating unit, and the second electrical component is a battery and a circuit board; or, the first electrical component is a battery and a circuit board, and the second electrical component is a sound-generating unit; or, the first electrical component is a sound-generating unit and a circuit board, and the second electrical component is a battery; or, the first electrical component is a battery, and the second electrical component is a sound-generating unit and a circuit board.

[0088] In other embodiments, the headphones 300 may also be neckband headphones.

[0089] Preferably, in conjunction with the accompanying drawings, in this embodiment, one end of the metal spring 342 is provided with a first fixing part 348 connected to the first outer shell 322, and the other end of the metal spring 342 is provided with a second fixing part 349 connected to the second outer shell 362.

[0090] Referring to the accompanying drawings, in this embodiment, the first outer shell 322 includes a first shell 3222 and a second shell 3224 that are fixedly connected.

[0091] One end of the metal spring 342 is bent to form a bent first fixing part 348. One end of the metal spring 342 passes between the first housing 3222 and the second housing 2224, so that the first fixing part 348 is disposed inside the first housing 322.

[0092] Referring to the accompanying drawings, in this embodiment, one end of the metal spring 342 is bent inward to form a bent first fixing portion 348. In other embodiments, one end of the metal spring 342 may also be bent outward to form a bent first fixing portion 348.

[0093] Specifically, the first bent portion 348 can also be fixedly connected to the first housing 322 by screws.

[0094] Preferably, in this embodiment, the second outer shell 262 includes a third outer shell 3622 and a fourth outer shell 3624 that are fixedly connected. The second fixing part 249 is a protrusion formed by the other end of the metal spring 240 extending to one or both sides. The other end of the metal spring 240 is clamped between the third outer shell 3622 and the fourth outer shell 3624. The second fixing part 249 is held in the third outer shell 3622 and the fourth outer shell 3624.

[0095] Specifically, the third housing 3622, the other end of the metal spring 240, and the fourth housing 3624 can be sequentially fixed and connected by screws or other fasteners.

[0096] This utility model also discloses an audio device according to one embodiment, including an earphone case and the aforementioned earphones 100, 200, and 300, wherein the earphones 100, 200, and 300 are disposed inside the earphone case.

[0097] In the description of the embodiments of the present invention, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., 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 the embodiments of the present invention 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, they should not be construed as limitations on the embodiments of the present invention. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0098] In the description of the embodiments of the present invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of the present invention based on the specific circumstances.

[0099] In embodiments of the present invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0100] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0101] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has 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 of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An earphone, characterized in that, It includes a first earphone body, a connecting arm, and a second earphone body. The connecting arm includes a metal spring and an FPC strip stacked and fixed on the metal spring. The metal spring is U-shaped. The first earphone body includes a first outer shell and a first electrical component disposed within the first outer shell; the second earphone body includes a second outer shell and a second electrical component disposed within the second outer shell. The metal springs are respectively connected to the first housing and the second housing, and the FPC strips are respectively electrically connected to the first electrical component and the second electrical component.

2. The earphone according to claim 1, characterized in that, The metal spring is provided with an elongated groove extending along the length of the metal spring, and the FPC strip is fixed in the elongated groove.

3. The earphone according to claim 2, characterized in that, The elongated groove is located in the middle region of one side of the metal spring, so that the cross-section of the metal spring is U-shaped.

4. The earphone according to claim 3, characterized in that, The tops of the two side walls of the elongated groove extend inwards respectively.

5. The earphone according to claim 2, characterized in that, The FPC strip is glued and fixed to the metal spring sheet; The first electrical component is one or two of the sound-generating unit, battery, and circuit board, and the second electrical component is one or two of the remaining components of the sound-generating unit, battery, and circuit board.

6. The headphones according to any one of claims 1 to 5, characterized in that, One end of the metal spring is provided with a first fixing part that connects to the first outer shell, and the other end of the metal spring is provided with a second fixing part that connects to the second outer shell.

7. The earphone according to claim 6, characterized in that, The first outer casing includes a first housing and a second housing that are fixedly connected; One end of the metal spring is bent to form the first fixing part in a bent shape, and one end of the metal spring passes between the first housing and the second housing, so that the first fixing part is disposed inside the first housing. Alternatively, the first fixing part is semi-circular or circular, and the side of the first housing near the second housing is provided with a receiving groove that matches the first fixing part. The first fixing part is disposed in the receiving groove, and after the first housing and the second housing are fixedly connected, the first fixing part is clamped and fixed between the two.

8. The earphone according to claim 6, characterized in that, One end of the metal spring is bent inward to form a first bend, and the end of the first bend away from the metal spring is bent to form a second bend. The first fixing part includes the first bend and the second bend. The first outer shell is provided with a connecting through hole, and the first bent portion passes through the connecting through hole so that the second bent portion is disposed inside the first outer shell.

9. The earphone according to claim 6, characterized in that, The second outer casing includes a third casing and a fourth casing that are fixedly connected, and the second fixing part is sandwiched between the third casing and the fourth casing. The third casing, the second fixing part, and the fourth casing are fixedly connected in sequence. Alternatively, the second earphone body may also include a decorative element, and the second fixing part is sandwiched between the second outer shell and the decorative element, with the second outer shell, the second fixing part and the decorative element being fixedly connected in sequence; Alternatively, the second housing may include a third housing and a fourth housing that are fixedly connected, and the second fixing part is a protrusion formed by the other end of the metal spring extending to one or both sides, with the other end of the metal spring sandwiched between the third housing and the fourth housing, and the second fixing part being held in the third housing and the fourth housing.

10. An audio device, characterized in that, It includes an earphone case and earphones as described in any one of claims 1 to 9, wherein the earphones are disposed within the earphone case.

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