CN218830554U - Earphone set - Google Patents

Abstract

The application discloses an earphone. The earphone comprises a shell, a light guide part and a light source device, wherein the shell is provided with an accommodating cavity and a light outlet communicated with the accommodating cavity, and the light outlet extends for a set length along a set direction. The light guide piece comprises a first main body arranged in the accommodating cavity, the first main body extends along the length direction of the light outlet hole, the first main body is provided with a light inlet surface and a light outlet surface, the light inlet surface and the light outlet surface are not coplanar, and the light outlet surface and the light outlet hole are correspondingly arranged. The light source device is arranged in the accommodating cavity, the light emitting surface, the light incident surface and the light source device are sequentially arranged along the length direction of the light emitting hole, and the light source device emits light towards the light incident surface. When the light source device emits light towards the light inlet surface and emits into the first main body, the light is distributed along the extending direction of the first main body, and the light is refracted and reflected in the first main body, so that all parts of the light guide member emit light, at least part of the light is emitted from the light outlet surface and penetrates out of the light outlet hole, and the strip-shaped light emitting effect on the earphone is achieved.

Description

Earphone set

Technical Field

The application relates to the technical field of electronic equipment, in particular to an earphone.

Background

Because the structure and space of the earphone are limited, the earphone is difficult to put in a lighting structure element with a larger size, and usually, only flickering point-shaped lighting is arranged on the earphone so as to feed back different earphone states. In the related art (CN 209627647U), a strip-shaped light guide member is used to realize a strip-shaped light effect on the earphone, but a plurality of light source devices need to be arranged along the length direction of the light guide member to realize the strip-shaped light effect of the earphone, and the arrangement of the plurality of light source devices has a high requirement on the space of the earphone, and needs to sacrifice the space of other functional elements or set the light guide member to be short, so it is necessary to research and solve the above-mentioned problems.

SUMMERY OF THE UTILITY MODEL

The present application is directed to solving at least one of the problems in the prior art. Therefore, the earphone is provided, the strip-shaped light effect on the earphone can be achieved, and the use of a light source device is saved.

A headset according to an embodiment of the application includes:

the light source comprises a shell, a light source and a light guide plate, wherein an accommodating cavity is formed in the shell, a light outlet communicated with the accommodating cavity is formed in the shell, and the light outlet extends for a set length along a set direction;

the light guide piece comprises a first main body, the first main body is arranged in the accommodating cavity, the first main body extends along the length direction of the light outlet hole, the first main body is provided with a light inlet surface and a light outlet surface, the included angle theta between the light inlet surface and the light outlet surface is more than 0 degree and less than 180 degrees, the light outlet surface and the light outlet hole are correspondingly arranged, and the light inlet surface is positioned at one end of the first main body along the length direction of the light outlet hole;

the light source device is arranged in the accommodating cavity, corresponds to the light incident surface and is connected to the shell, and the light source device emits light towards the light incident surface.

According to the earphone of the embodiment of the application, at least the following beneficial effects are achieved: because income plain noodles and play plain noodles are not coplane and go out the plain noodles, income plain noodles and light source device set gradually along the extending direction of first main part, after light source device goes out the plain noodles light towards and jets into first main part, light distributes along the extending direction of first main part, and, light takes place refraction and reflection in first main part, thereby make everywhere of leaded light spare all give out light, and at least partial light carries out the light-emitting and sees the unthreaded hole from going out the plain noodles, thereby realize the banding light-emitting effect on the earphone, compare with punctiform light, the light of banding light-emitting is more striking, the light effect is better, and compare with the scheme of arranging into banding in order to obtain banding light-emitting effect through a plurality of light source device, the earphone of this application embodiment is under the leaded light effect of leaded light spare, only need quantity less light source device can realize banding light-emitting, thereby can practice thrift the device and simplify the assembly.

According to some embodiments of the present application, the light guide further includes a first protrusion, the first protrusion is disposed at one side of the first body facing the light outlet hole, the first protrusion protrudes from the outer surface of the first body, and the light outlet is disposed at one side of the first protrusion facing away from the first body.

According to some embodiments of the present application, the light exit surface is located within the light exit aperture; or the first protruding part penetrates through the light outlet hole, and the light outlet face protrudes out of the outer surface of the shell or is flush with the outer surface of the shell.

According to some embodiments of the present application, the light source device corresponds to a region on the light incident surface corresponding to the first protrusion.

According to some embodiments of the present application, an included angle θ between the light emitting surface and the light incident surface is set between 60 degrees and 90 degrees.

According to some embodiments of the present application, the light source device comprises a plurality of light source devices, and the light source devices are symmetrically arranged along a center line of the light outlet hole in the length direction relative to the light outlet surface.

According to some embodiments of the present application, the light source device includes a second body and an light emitting portion connected to each other, the light emitting portion faces the light incident surface, and a cross-sectional area of the light emitting portion is smaller than a cross-sectional area of the second body.

According to some embodiments of the application, the earphone further comprises a limiting column, the limiting column is connected to the inner wall of the shell, the first main body is provided with a first limiting hole, and the limiting column is inserted into the first limiting hole.

According to some embodiments of the application, the casing is provided with the spacing hole of second, the leaded light spare is provided with the second bulge, the one end of second bulge connect in first main part, the other end of second bulge is followed the length direction in light-emitting hole extends, the second bulge is inserted and is located the spacing downthehole of second.

According to some embodiments of the present application, the earphone includes a circuit board, the circuit board is fixed to the housing, the light source device is electrically connected to the circuit board, the housing is provided with a first through hole communicated with the accommodating cavity, the earphone further includes a touch pad, the touch pad is fixed to one side of the light guide member facing the first through hole, at least a portion of the touch pad is exposed out of the first through hole, and the touch pad is electrically connected to the circuit board.

Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.

Drawings

The present application is further described with reference to the following figures and examples, in which:

fig. 1 is a schematic view of a headset according to an embodiment of the present application;

fig. 2 is an exploded view of a headset according to an embodiment of the present application;

fig. 3 is a cross-sectional view of a headset of an embodiment of the present application;

FIG. 4 is a schematic diagram of a portion of a headset according to an embodiment of the present application;

FIG. 5 is a schematic view of a light guide according to an embodiment of the present disclosure;

FIG. 6 is a schematic view of another view angle of the light guide of FIG. 5;

fig. 7 is a cross-sectional view of the light guide of fig. 5.

Reference numerals are as follows:

the light source module comprises a shell 100, an upper shell 110, a light emitting hole 120, a first through hole 130, a lower shell 140, a second limiting hole 150, an accommodating cavity 160 and a limiting column 170;

the light guide member 200, the first main body 210, the first limiting hole 220, the light emitting surface 230, the light incident surface 250, the second through hole 260, the first protrusion 270, the second protrusion 280, and the third protrusion 290;

a circuit board 300, a light source device 310, a second body 320, a light emitting portion 330, a touch panel 340;

the light blocking member 400.

Detailed Description

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.

In the description of the present application, it is to be understood that the positional descriptions, such as the directions of up, down, front, rear, left, right, etc., referred to herein are based on the directions or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the referred device or element must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present application.

In the description of the present application, the meaning of a plurality is one or more, the meaning of a plurality is two or more, and the above, below, exceeding, etc. are understood as excluding the present number, and the above, below, within, etc. are understood as including the present number. If there is a description of first and second for the purpose of distinguishing technical features only, this is not to be understood as indicating or implying a relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of technical features indicated.

In the description of the present application, unless otherwise expressly limited, terms such as set, mounted, connected and the like should be construed broadly, and those skilled in the art can reasonably determine the specific meaning of the terms in the present application by combining the detailed contents of the technical solutions.

In the description of the present application, reference to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Because the structure and space of the earphone are limited, the earphone is difficult to put in a lighting structure element with a larger size, and usually, only flickering point-shaped lighting is arranged on the earphone so as to feed back different earphone states. In the correlation technique, utilize banding light effect on the earphone to realize by banding leaded light spare, but need be provided with the banding light effect that a plurality of light source device just can realize the earphone along the length direction arrangement of leaded light spare, the space requirement of the setting of a plurality of light source device to the earphone is higher, needs the space of sacrificing other functional element or sets up the leaded light spare to be shorter, consequently, this application embodiment provides an earphone in order to solve above-mentioned problem.

The earphone of the embodiments of the present application is described below with reference to the drawings attached to the specification.

Referring to fig. 1 to 3 and 7, the earphone according to the embodiment of the present application includes a housing 100, a light guide 200, and a light source device 310, wherein the housing 100 has a receiving cavity 160 therein, the housing 100 is further provided with a light outlet 120 communicated with the receiving cavity 160, and the light outlet 120 extends along a set direction by a set length. The light guide 200 includes a first main body 210, the first main body 210 is disposed in the accommodating cavity 160, the first main body 210 extends along a length direction of the light exit hole 120, the first main body 210 is provided with a light incident surface 250 and a light exit surface 230, an included angle θ between the light incident surface 250 and the light exit surface 230 satisfies 0 ° < θ < 180 °, the light exit surface 230 is disposed corresponding to the light exit hole 120, and the light incident surface 250 is located at one end of the first main body 210 along the length direction of the light exit hole 120. The light source device 310 is installed in the accommodating cavity 160, the light source device 310 is disposed corresponding to the light incident surface 250 and connected to the housing 100, and the light source device 310 emits light toward the light incident surface 250. Because the included angle θ between the light incident surface 250 and the light emitting surface 230 is greater than 0 ° < θ < 180 °, and the light incident surface 250 is located at one end of the first main body 210 along the length direction of the light emitting hole 120, when the light source device 310 emits light toward the light incident surface 250 and enters the first main body 210, the light is distributed along the extending direction of the first main body 210, and the light is refracted and reflected in the first main body 210, so that all parts of the light guide member 200 emit light, and at least part of the light is emitted from the light emitting surface 230 and passes through the light emitting hole 120, thereby realizing the strip-shaped light emitting effect on the earphone, making the light more striking, and the light effect better, and only a small number of light source devices 310 are needed to ensure light emission.

Specifically, the light guide 200 is made of a transparent plastic PC material, which is conventional in the art, and has reflective powder and toner inside, so that the light guide 200 can uniformly mix light. The light guide member 200 can be installed in the accommodating cavity 160 by clamping, bonding, and the like. The light-emitting surface 230 is located in the accommodating cavity 160 and opposite to the light-emitting hole 120, such that along a direction in which the light-emitting hole 120 penetrates through the housing 100, a projection of the light-emitting hole 120 and the light-emitting surface 230 have an overlapped portion to ensure that light is emitted from the light-emitting hole 120.

The light source device 310 may be selected as an led lamp bead which is conventional in the art, and the light source device 310 may be fixed on the circuit board 300 of the headset and electrically connected to the circuit board 300 to achieve circuit conduction and position fixing of the light source device 310. The specific position of the light source device 310 is changed along with the circuit board 300, and when the circuit board 300 is fixed, the light source device 310 only needs to emit light toward the light incident surface 250 of the first body 210. The casing 100 includes an upper casing 110 and a lower casing 140, the light-emitting hole 120 is disposed on the upper casing 110, and when the sound-generating element, the circuit board 300, the light-guiding member 200 and other devices of the earphone are assembled on the lower casing 140, the upper casing 110 and the lower casing 140 are clamped in a covering manner, so as to define the accommodating cavity 160 and accommodate the devices in the accommodating cavity 160.

Further, the outer surface of the light guide member 200 may be provided with a frosted surface, for example, when the light emitting surface 230 is set as a frosted surface, the frosted surface may cause the transmitted light to be diffusely reflected, thereby playing the effect of light transmission without perspective, making the light of the earphone soft and not glaring, and further improving the light mixing effect of the light guide member 200.

As an improvement of the above solution, referring to fig. 3 and 5, the light guide 200 further includes a first protrusion 270, the first protrusion 270 is disposed on a side of the first main body 210 facing the light outlet 120, the first protrusion 270 protrudes from an outer surface of the first main body 210, and the light outlet 230 is disposed on a side of the first protrusion 270 facing away from the first main body 210. The first protrusion 270 can improve the light intensity at the light outlet 120.

Specifically, the first protrusion 270 is a strip-shaped protrusion opposite to the light exit hole 120, and the first protrusion 270 is arranged to enable a part of light to be refracted and reflected in the light guide member 200, and then the light is emitted from the first protrusion 270, and the first protrusion 270 extends towards the light exit hole 120, so that the part of light is guided to the light exit hole 120, and the illuminance of the light from the light exit hole 120 is increased.

Further, the light emitting surface 230 is located in the light emitting hole 120; alternatively, the first protrusion 270 is disposed through the light exit hole 120, and the light exit surface 230 protrudes from the outer surface of the housing 100 or is flush with the outer surface of the housing 100. By controlling the relative position of the light emitting surface 230 and the light exit hole 120, the light emitting effect at the light exit hole 120 is further improved.

Specifically, the first protrusion 270 protrudes into the light exit hole 120 relative to the first body 210, so that the light exit surface 230 is located in the light exit hole 120; alternatively, the first protrusion 270 protrudes relative to the first body 210 until the light emitting surface 230 is flush with the outer surface of the housing 100; alternatively, the first protrusion 270 protrudes from the outer surface of the housing 100 relative to the first body 210, so that the light emitting surface 230 protrudes from the outer surface of the housing 100. By extending the protruding height of the first protruding portion 270, the light can be further guided out of the light exit hole 120 along the light exit surface 230, so as to further increase the corresponding light intensity at the light exit hole 120.

In order to maximize the illumination intensity of the light guide 200 at the position corresponding to the light exit hole 120, referring to fig. 6, along the length direction of the light exit hole 120, the light source device 310 corresponds to the region of the light incident surface 250 corresponding to the first protrusion 270. By arranging the light source device 310 corresponding to the region of the light incident surface 250 corresponding to the first protrusion 270, the light intensity of the light guide member 200 corresponding to the light exit hole 120 is strongest when the light guide member emits light, thereby improving the utilization rate of light.

As another improvement of the above solution, referring to fig. 7, an included angle θ between the light emitting surface 230 and the light incident surface 250 is set between 60 degrees and 90 degrees. The included angle θ is set between 60 degrees and 90 degrees, so that after the light enters the light guide member 200 from the light entrance surface 250, the light is refracted and reflected in the light guide member 200 and then spreads over the light guide member 200 along the extending direction of the first main body 210, and the light intensity at each position of the light guide member 200 is relatively uniform.

Specifically, the included angle θ may be set to 60 degrees, 70 degrees, 80 degrees or 90 degrees, the larger the angle of the included angle θ is, after the light is emitted from the light source device 310, the first main body 210 is more easily penetrated along the extending direction of the first main body 210, so as to ensure that at least part of the light can be refracted and reflected at the end far away from the light incident surface 250 in the first main body 210, so as to be far away from the position of one side of the light incident surface 250 in the length direction of the light emitting hole 120, and the light can be emitted by enough light, so that the illumination intensity at each position of the light emitting hole 120 is as uniform as possible. The illumination intensity may also be controlled by adjusting the content of the reflective powder inside the light guide 200, for example, the content of the reflective powder gradually increases along the direction away from the light source device 310 in the extending direction of the first body 210.

The embodiment of this application still provides an earphone, refer to fig. 2 and 4, and the quantity of light source device 310 is provided with a plurality ofly, through setting up a plurality of light source device 310, can increase the quantity of the light of penetrating into in the leaded light spare 200 to improve the luminous intensity of leaded light spare 200, make the luminance increase of light-emitting hole 120 department, increase illumination effect. Moreover, the colors of the lights emitted by the light source devices 310 may be different, so as to realize different lighting effects, distinguish different operating states of the earphones, or realize light effect switching of the earphones, thereby providing more light effect options.

And, the plurality of light source devices 310 are symmetrically disposed with respect to the light emitting surface 230 along a center line of the light emitting hole 120 in the length direction. When the light colors of the light source devices 310 are consistent, the light effect at the light outlet 120 is uniform, and the probability that the light at one side of the light outlet 120 is strong and the light at the other side of the light outlet is weak is reduced, so that the light effect is optimized. When the light colors of the light source devices 310 are different, the light intensity at the light outlet 120 is consistent when the light source devices 310 emit light independently, or when the light source devices 310 emit light together to mix light, the light effect is uniform when the light is emitted, and the light effect of the earphone is ensured.

Further, referring to fig. 2 and 4, the light source device 310 includes a second body 320 and an exit portion 330 connected to each other, the exit portion 330 faces the entrance surface 250, and a cross-sectional area of the exit portion 330 is smaller than that of the second body 320. The light emitting portion 330 of the light source device 310 is used for emitting light, and the cross-sectional area of the light emitting portion 330 is set to be smaller than that of the second body 320, so that the light can be focused, the emitting direction and the light distribution range of the light are limited, the light is gathered more, and the utilization rate of the light is improved.

When the light guide member 200 is installed in the accommodating cavity 160, the light guide member 200 needs to be positioned to ensure that the light guide member 200 is located at the set position, so as to ensure that the light can be emitted from the light emitting hole 120. Based on the above, an improvement is further provided in the embodiments of the present application, referring to fig. 3 and 5, the earphone further includes a limiting post 170, the limiting post 170 is fixed on the inner wall of the casing 100, the first main body 210 is provided with a first limiting hole 220, and the limiting post 170 is inserted into the first limiting hole 220. The first body 210 is limited to move in the accommodating cavity 160 by the abutting between the limiting pillar 170 and the wall of the first limiting hole 220, so as to keep the first body 210 at a predetermined position, thereby ensuring that enough light is emitted from the light-emitting hole 120. Meanwhile, the first limiting hole 220 and the limiting column 170 are matched to play a role in positioning when the light guide member 200 is installed in the accommodating cavity 160. Specifically, the specific number of the first position-limiting holes 220 and the position-limiting posts 170 is not limited, and the positions of the first position-limiting holes 220 and the position-limiting posts 170 correspond to each other one by one.

Further, the housing 100 is provided with a second limiting hole 150, the light guide 200 is provided with a second protrusion 280, one end of the second protrusion 280 is connected to the first main body 210, the other end of the second protrusion 280 extends along the length direction of the light exit hole 120, and the second protrusion 280 is inserted into the second limiting hole 150. Through the cooperation of the second protrusion 280 and the second limiting hole 150, the light guide member 200 can be positioned and fixed, and the movement of the light guide member 200 in the accommodating cavity 160 is limited.

Specifically, the lower housing 140 is provided with a limiting groove, and the upper housing 110 and the lower housing 140 are connected to define a second limiting hole 150. When assembling the light guide member 200, the second protrusion 280 is aligned with the limiting groove for placement. The second limiting hole 150 provides positioning for the placement of the light guide member 200 so as to improve the positioning accuracy of the light guide member 200, and when the housing 100 is further provided with the limiting column 170 to fix the light guide member 200, the difficulty of correctly inserting the limiting column 170 into the first limiting hole 220 can be reduced, and the limiting column 170 limits the light guide member 200, so that the light guide member 200 is further fixed.

As an improvement of the above solution, referring to fig. 2 and 3, on the basis that the circuit board 300 is provided and the light source device 310 is electrically connected to the circuit board 300, the housing 100 is further provided with a first through hole 130 communicating with the accommodating cavity 160, the earphone further includes a touch pad 340, the touch pad 340 is fixed on one side of the light guide 200 facing the first through hole 130, and at least a portion of the touch pad 340 is exposed out of the first through hole 130, so that a user can touch the touch pad 340 through the first through hole 130. The touch pad 340 is electrically connected with the circuit board 300, and a user can control the light source device 310 through the circuit board 300 by touching the touch pad 340, so that the light effect is turned on and off; alternatively, the circuit board 300 may be used to change the light effect of the earphone, for example, when the touch pad 340 is triggered, the light source devices 310 of different colors are switched on and off, so as to change the color of the emitted light.

Specifically, the touch pad 340 is electrically connected to the circuit board 300 through a thimble disposed on the circuit board 300, and when the thimble interferes with the light guide 200, a second through hole 260 can be formed on the light guide 200 for the thimble to pass through. The touch pad 340 and the light guide 200 can be fixed by bonding or pre-tightening the pre-tightening member. The touch pad 340 may employ touch-FPC as is conventional in the art.

Further, when the touch pad 340 is located in the first through hole 130 or in the accommodating chamber 160, a user needs to extend a hand into a certain depth along the first through hole 130 to trigger the touch pad 340, which is inconvenient to operate. Referring to fig. 3 and 5, the light guide 200 further includes a third protrusion 290, the third protrusion 290 is disposed on one side of the first body 210 facing the first through hole 130, the third protrusion 290 protrudes from an aperture of one side of the first through hole 130 facing away from the circuit board 300, and the touch pad 340 is fixed on one side of the third protrusion 290 away from the first body 210. Through setting up third bulge 290 for partly protrusion in the first through-hole 130 of leaded light 200 deviates from the drill way of circuit board 300 one side, and fix touch pad 340 on third bulge 290, thereby make the surface of user's touch earphone, can realize the touch control to light.

Further, in order to reduce the electrical connection path between the light source device 310 and the touch pad 340 on the circuit board 300, the distance between the light source device 310 and the touch pad 340 is set to be small, and the first through hole 130 communicates with the accommodating cavity 160, so that an unnecessary light leakage phenomenon may occur at the first through hole 130. In order to solve the above problem, referring to fig. 1 and 3, the earphone further includes a light shielding member 400, the light shielding member 400 is fixed to a side of the third protrusion 290 away from the first body 210, the touch pad 340 is located between the light shielding member 400 and the third protrusion 290, and the light shielding member 400 covers the first through hole 130, so as to shield light leaking from the first through hole 130 and prevent unnecessary light from exiting. It can be understood that the touch pad 340 can control the light only by receiving the touch signal, and therefore, when the light shielding member 400 is touched, the touch pad 340 can still receive the touch signal, and the use of the touch pad 340 is not affected by the setting of the light shielding member 400.

The embodiments of the present application have been described in detail with reference to the drawings, but the present application is not limited to the embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present application. Furthermore, the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

Claims (10)

1. A headset, comprising:

the light source comprises a shell, a light source and a light source, wherein an accommodating cavity is formed in the shell, a light outlet communicated with the accommodating cavity is formed in the shell, and the light outlet extends for a set length along a set direction;

the light guide piece comprises a first main body, the first main body is arranged in the accommodating cavity, the first main body extends along the length direction of the light outlet hole, the first main body is provided with a light inlet surface and a light outlet surface, the included angle theta between the light inlet surface and the light outlet surface is more than 0 degree and less than 180 degrees, the light outlet surface and the light outlet hole are correspondingly arranged, and the light inlet surface is positioned at one end of the first main body along the length direction of the light outlet hole;

the light source device is arranged in the accommodating cavity, corresponds to the light inlet face and is connected to the shell, and the light source device emits light towards the light inlet face.

2. The earphone according to claim 1, wherein the light guide further comprises a first protrusion disposed on a side of the first body facing the light outlet, the first protrusion protruding from an outer surface of the first body, and the light outlet disposed on a side of the first protrusion facing away from the first body.

3. The earphone according to claim 2, wherein the light exit surface is located in the light exit hole; or the first protruding part penetrates through the light outlet hole, and the light outlet face protrudes out of the outer surface of the shell or is flush with the outer surface of the shell.

4. The headphone of claim 2, wherein the light source device corresponds to a region on the light incident surface corresponding to the first protrusion.

5. The earphone according to claim 1, wherein an included angle θ between the light exit surface and the light incident surface is set between 60 degrees and 90 degrees.

6. The earphone according to claim 1, comprising a plurality of the light source devices, wherein the plurality of the light source devices are symmetrically arranged with respect to the light exit surface along a center line of a length direction of the light exit hole.

7. The earphone according to claim 1, wherein the light source device comprises a second body and an light emergent portion connected with each other, the light emergent portion faces the light incident surface, and a cross-sectional area of the light emergent portion is smaller than that of the second body.

8. The earphone according to claim 1, further comprising a limiting post connected to an inner wall of the housing, wherein the first body is provided with a first limiting hole, and the limiting post is inserted into the first limiting hole.

9. The earphone according to claim 1, wherein the housing is provided with a second limiting hole, the light guide member is provided with a second protrusion, one end of the second protrusion is connected to the first body, the other end of the second protrusion extends along the length direction of the light outlet hole, and the second protrusion is inserted into the second limiting hole.

10. The earphone according to claim 1, wherein the earphone comprises a circuit board fixed to the housing, the light source device is electrically connected to the circuit board, the housing is provided with a first through hole communicated with the accommodating cavity, the earphone further comprises a touch pad, the touch pad is fixed to one side of the light guide member facing the first through hole, at least one portion of the touch pad is exposed out of the first through hole, and the touch pad is electrically connected to the circuit board.

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