Charging device and earphone system

Abstract

This application discloses a charging device and an earphone system. The charging device is used to charge earphones. The charging device includes a housing, a circuit board, an indicator light, and a light guide. The housing has a receiving cavity and a light-transmitting hole, the light-transmitting hole connecting the receiving cavity to the outside of the charging device. The circuit board is housed within the receiving cavity. The circuit board includes a first side and a second side facing away from each other in a first direction. The indicator light is housed within the receiving cavity. The indicator light is disposed on the first side of the circuit board and electrically connected to the circuit board. The indicator light is configured to emit light. The light guide is housed within the housing. The light guide is connected to the first side of the circuit board. At least a portion of the light guide is aligned with the light-transmitting hole. The portion of the light guide located in the receiving cavity projects along the first direction onto the circuit board within the area of ​​the first side of the circuit board. The light guide is configured to guide the light emitted by the indicator light to the light-transmitting hole.

Description

Technical Field

[0001] This application relates to the field of headphone technology, and more specifically, to a charging device and headphone system. Background Technology

[0002] Wireless headphones have captured a significant market share in the headphone industry due to their portability and lightweight design. Headphones are typically housed in portable charging devices and charged via these devices. To indicate the charging status of the headphones, such as whether they are making good contact with the charging device and are charging, the ratio of the remaining battery level to the maximum battery capacity, or whether the charging process is complete, the charging device usually includes indicators, such as indicator lights. Different illumination states (color, on / off state, flashing frequency, etc.) of the indicator light represent different charging states. However, to ensure that the light emitted by the indicator light can pass well through the light-transmitting hole of the charging device, the indicator light must be positioned correctly relative to the light-transmitting hole. This limits the placement of the indicator light within the charging device and restricts the overall layout of the internal components. Utility Model Content

[0003] This application provides a charging device and an earphone system to solve at least one of the aforementioned technical problems.

[0004] The charging device provided in this application is used to charge headphones. The charging device includes a housing, a circuit board, an indicator light, and a light guide. The housing has a receiving cavity and a light-transmitting hole, the light-transmitting hole connecting the receiving cavity to the outside of the charging device. The circuit board is housed within the receiving cavity. The circuit board includes a first side and a second side facing away from each other in a first direction. The indicator light is housed within the receiving cavity. The indicator light is disposed on the first side of the circuit board and electrically connected to the circuit board. The indicator light is configured to emit light. The light guide is housed within the housing. The light guide is connected to the first side of the circuit board. At least a portion of the light guide is aligned with the light-transmitting hole. The projection of the portion of the light guide located in the receiving cavity onto the circuit board along the first direction is within the area of ​​the first side of the circuit board. The light guide is configured to guide the light emitted by the indicator light to the light-transmitting hole.

[0005] In some embodiments, the light guide includes a first light guide portion and a second light guide portion. The first light guide portion is connected to the circuit board. The projection of the first light guide portion toward the circuit board along the first direction is located within the area of ​​a first surface of the circuit board, and the projection of the indicator light on the first surface of the circuit board is located within the projection of the first light guide portion on the first surface of the circuit board. The second light guide portion is connected to the first light guide portion and is housed within the light-transmitting hole, wherein: the first light guide portion is configured to guide the light emitted by the indicator light toward the second light guide portion, and the second light guide portion is configured to guide the light introduced from the first light guide portion into the interior of the light-transmitting hole.

[0006] In some embodiments, the first light guide includes a dominant photonic portion, two support sub-portions, and a branch photonic portion. One end of the dominant photonic portion is connected to the second light guide. The two support sub-portions are spaced apart and connected to the circuit board and the dominant photonic portion at opposite ends in the first direction, respectively, so that the dominant photonic portion is spaced from the circuit board and the second light guide extends into the light-transmitting hole. The branch photonic portion is connected to the side of the two support sub-portions away from the light-transmitting hole, and / or, the branch photonic portion is connected to the other end of the dominant photonic portion. The branch photonic portion and the two support sub-portions surround the indicator light so that at least a portion of the light emitted by the indicator light is received by the branch photonic portion and / or the support sub-portions and enters the first light guide.

[0007] In some embodiments, the first light guide includes an incident surface and a reflective surface. The incident surface faces the indicator light, and the light emitted by the indicator light enters the interior of the first light guide through the incident surface. The reflective surface is opposite to the incident surface and is a curved surface that convexes outward in a direction away from the light-transmitting hole. The reflective surface is configured to reflect the light entering from the incident surface toward the first light guide.

[0008] In some embodiments, the first light guide includes a light incident surface and a connecting surface. The light incident surface is opposite to the indicator light, and the light emitted by the indicator light enters the interior of the first light guide through the light incident surface. The connecting surface connects the second light guide and the light incident surface, and the connecting surface is a curved surface that convexes outward in a direction away from the light-transmitting hole.

[0009] In some embodiments, the light-transmitting hole is a through hole penetrating the housing, the second light guide is housed in the through hole, and a sealing element is provided between the second light guide and the inner wall of the through hole.

[0010] In some embodiments, the housing includes a first side and a second side facing away from each other, the first side of the housing being located within the receiving cavity, and the second side of the housing being located outside the receiving cavity. The light-transmitting aperture includes a first sub-aperture and a plurality of second sub-apertures. The first sub-aperture is a blind hole formed by a recess from the first side of the housing towards the second side of the housing, and the second light guide portion is housed within the blind hole. The plurality of second sub-apertures are disposed at the bottom of the blind hole and communicate with the blind hole and the outside of the housing.

[0011] In some embodiments, when the light-transmitting hole includes the first sub-hole and a plurality of second sub-holes, the plurality of second sub-holes are evenly distributed at the bottom of the blind hole.

[0012] In some embodiments, the second sub-hole is circular, and the diameter of the second sub-hole is greater than or equal to 0.10 mm and less than or equal to 0.14 mm.

[0013] In some embodiments, the distance between the centers of each of the second sub-holes is greater than or equal to 0.18 mm and less than or equal to 0.22 mm.

[0014] In some embodiments, the charging device further includes a connecting assembly. The housing includes a base and a top cover. The top cover is rotatably connected to the base via the connecting assembly and can be switched between an open and closed state. The first direction is the direction from the top cover to the base when the charging device is closed, or the direction from the base to the top cover. When the charging device is placed on a platform to charge the earphones, the base rests on the platform, and the top cover is away from the platform.

[0015] In some embodiments, the base has the accommodating cavity and the light-transmitting hole. The base and the upper cover form a charging compartment for accommodating the earphones. When the upper cover is in the closed state in a first position relative to the base, the upper cover abuts against the base in a first direction, and the charging compartment is closed. When the upper cover is in the open state in a second position relative to the base, the upper cover releases its abutment against the base in the first direction, and the charging compartment is open.

[0016] In some embodiments, the top wall of the base has a button hole. The charging device also includes a switch and a button. The switch is disposed on a first side of the circuit board and housed within the receiving cavity. The button is disposed within the button hole. The button is opposite to the switch and is elastically connected to the top wall of the base. The button is configured to move toward the switch to trigger the switch when pressed, and to automatically reset to block the button hole when released from pressure. The pressing direction of the button is parallel to the first direction.

[0017] In some embodiments, the charging device further includes a charging port, which is disposed on the side of the base away from the light-transmitting hole, and the central axis of the charging port is perpendicular to the first direction.

[0018] The headphone system provided in this application includes the charging device and headphones described in any of the above embodiments, wherein the charging device is used to charge the headphones.

[0019] In the charging device and headphone system of this application, the housing has a receiving cavity and a light-transmitting hole. The circuit board is housed in the receiving cavity to provide mounting positions for components such as indicator lights and light guides. In this case, both the light guide and the indicator light are located on the first surface of the circuit board. The light guide guides the light emitted by the indicator light to the light-transmitting hole, so that the emitted light can still be transmitted through the light-transmitting hole to the outside of the housing and be received by the user without needing to be aligned with the light-transmitting hole. Simultaneously, the projection of the portion of the light guide located in the receiving cavity onto the circuit board along the first direction is within the area of ​​the first surface of the circuit board, and the space occupied by the light guide inside the housing is relatively small. Therefore, in the charging device of this application, the position of the indicator light within the charging device can be set more flexibly, and the space occupied by the light guide inside the housing is small, resulting in a more flexible and reasonable overall layout of the components inside the charging device.

[0020] Additional aspects and advantages of embodiments of this 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 embodiments of this application. Attached Figure Description

[0021] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, wherein:

[0022] Figure 1 This is a schematic diagram of the structure of a headphone system according to certain embodiments of this application;

[0023] Figure 2 This is a three-dimensional structural diagram of the charging device in the off state according to certain embodiments of this application;

[0024] Figure 3 yes Figure 2 A schematic cross-sectional view of the charging device shown, taken by line III-III;

[0025] Figure 4 yes Figure 3 A partial enlarged view of point IV of the charging device shown;

[0026] Figure 5 yes Figure 2 An exploded 3D view of the charging device in the powered-on state;

[0027] Figure 6 yes Figure 2 The diagram shows the structural schematic and exploded view of the indicator light and light guide component in the charging device shown.

[0028] Figure 7 yes Figure 2 The diagram shows the structure of the indicator light and light guide in the charging device from another angle.

[0029] Explanation of key component symbols:

[0030] Headphone system 1000; Headphone 300; Transducer assembly 310; First electrical connector 3101; Ear hook assembly 330; Ear hook 3301; Power supply component 3303;

[0031] Charging device 100;

[0032] Housing 10; First side 101; Second side 103; Base 11; Receiving cavity 111; Light-transmitting hole 113; First sub-hole 1131; Second sub-hole 1133; Button hole 115; Charging port 117; Top cover 13; Charging compartment 15;

[0033] Circuit board 30; First side 301; Second side 303;

[0034] Indicator light 50;

[0035] Light guide 70; first light guide portion 71; main photon portion 711; support portion 712; secondary photon portion 713; light incident surface 714; reflective surface 715; connecting surface 716; second light guide portion 73;

[0036] Connection component 91; switch 93; button 95; second electrical connector 97;

[0037] First direction Z. Detailed Implementation

[0038] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the embodiments of this application, and should not be construed as limiting the embodiments of this application.

[0039] In the description of this application, it should be understood that the terms "thickness," "upper," "top," "bottom," "inner," "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0040] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation", "connection" and "linkage" should be interpreted broadly. In one example, they can be a fixed connection, a detachable connection, or an integral connection; they can be a mechanical connection, an electrical connection, or a connection that allows communication between them; they can be a direct connection or an indirect connection through an intermediate medium; they can be the internal connection of two elements or the interaction between two elements.

[0041] Wireless headphones have captured a significant market share in the headphone industry due to their portability and lightweight design. Headphones are typically housed in portable charging devices and charged via these devices. To indicate the charging status of the headphones, such as whether the headphones are making good contact with the charging device and are charging, the ratio of the headphones' current remaining battery level to their maximum battery level, or whether the charging process is complete, the charging device usually includes an indicator, such as an indicator light. Different illumination states (color, on / off state, flashing frequency, etc.) of the indicator light represent different charging states of the headphones. However, to ensure that the light emitted by the indicator light can pass well through the light-transmitting hole of the charging device, the indicator light must correspond to the position of the light-transmitting hole. This limits the placement of the indicator light within the charging device and restricts the overall layout of the components inside the charging device. To solve the above problems, this application provides a charging device 100 (please refer to...). Figure 2 and Figure 3 ) and headphone system 1000 (please refer to) Figure 1 ).

[0042] Please refer to Figure 1 The headphone system 1000 provided in this application includes a headphone 300 and a charging device 100. The charging device 100 is used to charge the headphone 300.

[0043] It is understood that the charging device 100 is a device in the headphone system 1000 used to charge or store the headphones 300. For example, when the headphones 300 have insufficient power or are not needed, the user can place them in the charging device 100. The charging device 100 can be a fixed power source type charging device, in which case the charging device 100 needs to be electrically connected to the power grid or power supply device to deliver electrical energy from the power grid or power supply device to the headphones 300. The charging device 100 can also be a mobile power bank type charging device, in which case the charging device 100 has a built-in rechargeable energy storage device (not shown), and during the charging process of the charging device 100 charging the headphones 300, the electrical energy of the energy storage device is delivered to the power supply device 3303 in the headphones 300. This application uses a mobile power bank type charging device as an example for explanation.

[0044] The earphone 300 can be worn on a user's ear and can be used with devices such as mobile phones, computers, smart wearable devices (such as smartwatches, smart bracelets, smart glasses, and smart helmets), head-mounted displays, and virtual reality devices. In some embodiments of this application, the earphone 300 is an ear-hook type earphone, which includes an ear-hook assembly 330 and a transducer assembly 310. The ear-hook assembly 330 includes an ear-hook piece 3301 and a power supply piece 3303, with the power supply piece 3303 disposed within the ear-hook piece 3301. In the wearing state, the transducer assembly 310 can be located in the concha and / or triangular fossa of the ear, and the ear-hook piece 3301 is suspended between the back of the user's ear and head. The ear-hook piece 3301 and the transducer assembly 310 together elastically hold the ear, which helps to increase the stability and comfort of wearing and reduces the possibility of the earphone 300 falling off during wear.

[0045] It should be noted that, in some embodiments, the power supply component 3303 can be a rechargeable battery, including but not limited to lithium-ion batteries, nickel-metal hydride batteries, and nickel-cadmium batteries. The ear hook 3301 may be provided with a conductive element, and the power supply component 3303 can be electrically connected to the transducer assembly 310 through the conductive element to supply power to the transducer assembly 310. The conductive element can be spring steel, titanium wire, etc., and this application does not impose any limitations.

[0046] In some embodiments, the transducer assembly 310 may be provided with a first electrical connector 3101, and the charging device 100 may be provided with a second electrical connector 97. When the first electrical connector 3101 and the second electrical connector 97 are electrically connected, the charging device 100 and the earphone 300 can realize functions such as power transmission and data transmission. For example, when the first electrical connector 3101 and the second electrical connector 97 are electrically connected, the charging device 100 can transmit the electrical energy in the energy storage device to the power supply device 3303 through the second electrical connector 97 and the first electrical connector 3101, thereby realizing the charging function of the earphone 300. It should be noted that in some embodiments, the first electrical connector 3101 may be at least one of the elements that can realize electrical connection, such as a spring pin and a spring sheet; the second electrical connector 97 may be an element that can be electrically connected to the first electrical connector 3101.

[0047] Since the headphone system 1000 in this embodiment includes a charging device 100, it is understood that the headphone system 1000 has at least the same beneficial effects as the charging device 100. Therefore, for the beneficial effects of the headphone system 1000, please refer to the beneficial effects of the charging device 100 described below.

[0048] Please refer to Figures 2 to 4 The charging device 100 provided in this embodiment is used to charge the earphone 300. The charging device 100 includes a housing 10, a circuit board 30, an indicator light 50, and a light guide 70. The housing 10 has a receiving cavity 111 and a light-transmitting hole 113, the light-transmitting hole 113 communicating with the outside of the receiving cavity 111 and the charging device 100. The circuit board 30 is housed within the receiving cavity 111. The circuit board 30 includes a first surface 301 and a second surface 303 facing away from each other in a first direction Z. The indicator light 50 is housed within the receiving cavity 111. The indicator light 50 is disposed on the first surface 301 of the circuit board 30 and electrically connected to the circuit board 30. The indicator light 50 is configured to emit light. The light guide 70 is housed within the housing 10. The light guide 70 is connected to the first surface 301 of the circuit board 30. At least a portion of the light guide 70 is aligned with the light-transmitting hole 113. The portion of the light guide 70 located in the accommodating cavity 111 has its projection along the first direction Z toward the circuit board 30 within the area of ​​the first surface 301 of the circuit board 30. The light guide 70 is configured to guide the light emitted by the indicator light 50 to the light-transmitting hole 113.

[0049] Specifically, the housing 10 is a component of the charging device 100 used to house other components besides the housing 10, such as the circuit board 30, indicator light 50, and light guide 70. The housing 10 is made of materials including, but not limited to, plastic, aluminum alloy, copper, iron, steel, and carbon fiber composite materials, or a combination of one or more of these. For example, the housing 10 is made of plastic, which makes the charging device 100 lighter, reduces its weight, and improves its portability. The housing 10 is the main body of the charging device 100, and the space structure enclosed by the housing 10 that serves to accommodate the components is the receiving cavity 111. The light-transmitting hole 113 is a through hole formed in the housing 10, allowing light from inside the receiving cavity 111 to pass through and be received by the user, conveying at least some of the operating status information of the charging device 100 to the user, such as whether it is charging and whether the remaining power is sufficient. The light-transmitting hole 113 establishes a communication channel between the receiving cavity 111 and the outside of the charging device 100. It is understandable that the light-transmitting hole 113 is located in a relatively conspicuous area of ​​the housing 10 so that the user can quickly and conveniently receive the light transmitted from the light-transmitting hole 113.

[0050] The circuit board 30 is a structure used to control the operation of functional components such as the indicator light 50. During user use of the charging device 100, the energy storage device supplies power to the circuit board 30, which then controls the indicator light 50 to illuminate. The circuit board 30 is connected to the housing 10 to stably house the circuit board 30 within the receiving cavity 111. The connection between the circuit board 30 and the housing 10 can be detachable or non-detachable. Detachable connections include, but are not limited to, one or more combinations of screw connections and snap-fit ​​connections. Non-detachable connections include, but are not limited to, one or more combinations of gluing, welding, and sintering methods. This definition will be used for both detachable and non-detachable connections in the future. This application defines the thickness direction of the charging device 100 as the first direction Z. In this case, the circuit board 30 includes a first surface 301 and a second surface 303 in the first direction Z, with the first surface 301 and the second surface 303 facing away from each other.

[0051] Indicator light 50 is a structure in the charging device 100 that emits a light signal to indicate that the charging device 100 is in different operating modes. Indicator light 50 can use different light emission modes to indicate that the charging device 100 is in different operating modes, conveying at least some information about the operating status of the charging device 100 to the user, such as whether the charging device 100 is charging or whether the remaining power is sufficient, as mentioned above. Indicator light 50 is physically connected to circuit board 30 and stably housed within receiving cavity 111. The physical connection between indicator light 50 and circuit board 30 can be detachable or non-detachable. Simultaneously, indicator light 50 is electrically connected to circuit board 30 so that circuit board 30 can control the light emission of indicator light 50.

[0052] The light guide 70 is a structure in the charging device 100 used to guide the light emitted by the indicator light 50 to the light-transmitting hole 113, and then out through the light-transmitting hole 113 to the outside of the charging device 100. The light guide 70 is connected to the circuit board 30 and / or the housing 10 to be stably housed inside the housing 10. The connection between the light guide 70 and the first surface 301 of the circuit board 30 can be detachable or non-detachable. The connection between the light guide 70 and the housing 10 can also be detachable or non-detachable. The light guide 70 can be, but is not limited to, a combination of optical fibers, mirrors, or other optical structures capable of guiding light transmission.

[0053] At least a portion of the light guide 70 is aligned with the indicator light 50 to receive the light emitted by the indicator light 50. Simultaneously, to more accurately guide the light emitted by the indicator light 50 to the light-transmitting hole 113, at least a portion of the light guide 70 is aligned with the light-transmitting hole 113. At this time, the light emitted by the indicator light 50 is transmitted to the light guide 70 and propagates within it. The light passes through the light guide 70 to the vicinity of the light-transmitting hole 113, where it exits. At least a portion of the light passes through the light-transmitting hole 113 to the outside of the charging device 100. The user can receive the light transmitted to the outside of the charging device 100 and obtain at least some of the operating status information of the charging device 100.

[0054] At least a portion of the light guide 70 is housed in the receiving cavity 111. The projection of the portion of the light guide 70 located in the receiving cavity 111 along the first direction Z toward the circuit board 30 can be used to reflect the spatial dimension occupied by the light guide 70 in the receiving cavity 111. Please refer to... Figure 5 The projection of the portion of the light guide 70 located in the accommodating cavity 111 toward the circuit board 30 along the first direction Z does not exceed the first surface 301 of the circuit board 30. At this time, the space occupied by the light guide 70 in the accommodating cavity 111 is small. In any direction perpendicular to the first direction Z, the portion of the light guide 70 located in the accommodating cavity 111 does not exceed the circuit board 30. At this time, the internal structure of the charging device 100 is relatively compact, which is conducive to miniaturizing the charging device 100. The charging device 100 is more portable and can better meet the user's needs.

[0055] In the charging device 100 and headphone system 1000 of this application embodiment, the housing 10 is provided with a receiving cavity 111 and a light-transmitting hole 113. The circuit board 30 is housed in the receiving cavity 111 to provide an installation position for components such as the indicator light 50 and the light guide 70. At this time, the light guide 70 and the indicator light 50 are both disposed on the first surface 301 of the circuit board 30. The light guide 70 guides the light emitted by the indicator light 50 to the light-transmitting hole 113 so that the light emitted by the indicator light 50 can still be transmitted to the outside of the housing 10 and received by the user through the light-transmitting hole 113 without needing to be aligned with the light-transmitting hole 113. At the same time, the projection of the portion of the light guide 70 located in the receiving cavity 111 toward the circuit board 30 along the first direction Z is located within the range of the first surface 301 of the circuit board 30. The space occupied by the light guide 70 inside the housing 10 is small. Therefore, in the charging device 100 of this application, the position of the indicator light 50 in the charging device 100 can be set more freely, and the light guide 70 occupies less space inside the housing 10. The overall layout of the components inside the charging device 100 is more flexible and reasonable.

[0056] Please refer to Figure 3 , Figure 4 , Figure 6 and Figure 7 In some embodiments, the light guide 70 includes a first light guide portion 71 and a second light guide portion 73. The first light guide portion 71 is connected to the circuit board 30. The projection of the first light guide portion 71 toward the circuit board 30 along a first direction Z is located within the area of ​​the first surface 301 of the circuit board 30, and the projection of the indicator light 50 on the first surface 301 of the circuit board 30 is located within the projection of the first light guide portion 71 on the first surface 301 of the circuit board 30. The second light guide portion 73 is connected to the first light guide portion 71 and is housed within the light-transmitting hole 113, wherein: the first light guide portion 71 is configured to guide the light emitted by the indicator light 50 toward the second light guide portion 73, and the second light guide portion 73 is configured to guide the light introduced from the first light guide portion 71 into the interior of the light-transmitting hole 113.

[0057] Specifically, the first light guide 71 is the part of the light guide 70 used to connect to the circuit board 30 and receive the light emitted by the indicator light 50. The connection between the first light guide 71 and the first surface 301 of the circuit board 30 can be either detachable or non-detachable. Please refer to... Figure 4 and Figure 5 The portion of the light guide 70 located in the accommodating cavity 111 is the first light guide 71. At this time, the projection of the first light guide 71 toward the circuit board 30 along the first direction Z does not exceed the first surface 301 of the circuit board 30. In any direction perpendicular to the first direction Z, the first light guide 71 does not exceed the circuit board 30. At this time, the internal structure of the charging device 100 is relatively compact, which is conducive to miniaturizing the charging device 100.

[0058] Meanwhile, the projection of the indicator light 50 on the first surface 301 of the circuit board 30 is located within the projection of the first light guide 71 on the first surface 301 of the circuit board 30. In any direction perpendicular to the first direction Z, the indicator light 50 does not extend beyond the first light guide 71. The first light guide 71 covers the indicator light 50, so the light emitted by the indicator light 50 can be fully received by the first light guide 71. A high proportion of the light can be transmitted to the outside of the charging device 100 through the light guide 70, resulting in high energy utilization of the charging device 100. Furthermore, the light intensity of the light transmitting information to the user is greater, allowing the user to perceive the light more clearly. Moreover, the first light guide 71 covering the indicator light 50 prevents the light emitted by the indicator light 50 from diverging into a large area outside the first light guide 71 and affecting the operation of other electronic components.

[0059] The second light guide 73 is the part of the light guide 70 used for alignment with the light-transmitting hole 113. The second light guide 73 is connected to the first light guide 71, and the second light guide 73 and the first light guide 71 can be an integral structure. In this case, the light guide 70 has good structural stability, high structural strength, and good drop and impact resistance. Alternatively, the second light guide 73 and the first light guide 71 can be separate structures, and their connection can be either detachable or non-detachable. The second light guide 73 is housed within the light-transmitting hole 113 for alignment. At this time, the light emitted by the indicator light 50 is transmitted to the first light guide 71 and propagates within it to the second light guide 73. The light enters the interior of the light-transmitting hole 113 through the second light guide 73, and at least a portion of the light passes through the light-transmitting hole 113 to the outside of the charging device 100.

[0060] In summary, the light guide 70 of this application guides the light emitted by the indicator light 50 through the first light guide 71 and the second light guide 73. The light emitted by the indicator light 50 passes through the first light guide 71 and the second light guide 73 in sequence and is transmitted to the outside of the charging device 100 through the light-transmitting hole 113. At this time, the brightness of the light transmitted to the outside of the charging device 100 is sufficient for the user, and thus at least some of the working status information of the charging device 100 can be clearly obtained, resulting in a better user experience of the charging device 100.

[0061] Please refer to Figure 6 and Figure 7In some embodiments, the first light guide 71 includes a dominant photonic portion 711, two support sub-portions 712, and a branch photonic portion 713. One end of the dominant photonic portion 711 is connected to the second light guide 73. The two support sub-portions 712 are spaced apart, and their opposite ends in the first direction Z are respectively connected to the circuit board 30 and the dominant photonic portion 711, so that the dominant photonic portion 711 is spaced apart from the circuit board 30, and the second light guide 73 extends into the light-transmitting hole 113. The branch photonic portion 713 is connected to the side of the two support sub-portions 712 away from the light-transmitting hole 113, and / or, the branch photonic portion 713 is connected to the other end of the dominant photonic portion 711. The branch photonic portion 713 and the two support sub-portions 712 surround the indicator light 50, so that at least a portion of the light emitted by the indicator light 50 is received by the branch photonic portion 713 and / or the support sub-portions 712 and enters the first light guide 71.

[0062] Specifically, the dominant photon section 711 is the main body of the first light guide section 71. The dominant photon section 711 includes two opposing ends, one of which is used to connect with the second light guide section 73 to guide the light emitted by the indicator light 50 toward the second light guide section 73.

[0063] The support sub-part 712 is a structure in the first light guide part 71 used to support the dominant photon part 711 and control the position of the dominant photon part 711 and the second light guide part 73 connected to the dominant photon part 711. There are two support sub-parts 712, and the two support sub-parts 712 are arranged at intervals between each other. At this time, the structural stability of the first light guide part 71 is better. In the first direction Z, the support sub-part 712 includes two opposing ends, wherein the end closer to the circuit board 30 is connected to the circuit board 30 so that the circuit board 30 supports and mounts the first light guide part 71 (support sub-part 712); the end farther from the circuit board 30 is connected to the main photonic part 711 so that the main photonic part 711 is raised by the support sub-part 712 in the first direction Z, reserving space for the cooperation between the indicator light 50 and the first light guide part 71. At the same time, the main photonic part 711 is spaced apart from the circuit board 30 in the first direction Z, and the second light guide part 73 connected to the main photonic part 711 is also raised in the first direction Z and extends into the light-transmitting hole 113.

[0064] The branch photonics section 713 is a portion of the first light guide section 71 used to cover the indicator light 50, thereby increasing the proportion of light received from the indicator light 50. In some embodiments, the branch photonics section 713 is connected to the side of the two support sub-sections 712 away from the light-transmitting hole 113. In this case, the branch photonics section 713 can guide the light emitted by the indicator light 50 that is transmitted to the side away from the light-transmitting hole 113. In other embodiments, the branch photonics section 713 is connected to the end of the main photonics section 711 that is not connected to the second light guide section 73. In this case, the branch photonics section 713 is connected to the side of the main photonics section 711 away from the light-transmitting hole 113, and therefore the branch photonics section 713 can guide the light emitted by the indicator light 50 that is transmitted to the side away from the light-transmitting hole 113. Therefore, the photonic branch 713 cooperates with the two support sub-branches 712 to surround the indicator light 50 in at least a part of the direction perpendicular to the first direction Z. At this time, at least a part of the light emitted by the indicator light 50 is received by the photonic branch 713 and / or the support sub-branches 712 to enter the first light guide 71 and be further guided to the outside of the second light guide 73 and the charging device 100.

[0065] In summary, in the light guide 70 of this application, the branch light guide sub-part 713 and the support sub-part 712 in the first light guide 71 surround at least a portion of the indicator light 50 to increase the proportion of light emitted by the indicator light 50 entering the first light guide 71. At this time, more light passes through the first light guide 71 and the second light guide 73 in sequence and is transmitted to the outside of the charging device 100 through the light transmission hole 113. Therefore, the user can receive a greater intensity of light transmitted to the outside of the charging device 100, and the user can obtain at least part of the working status information of the charging device 100 more clearly, resulting in a better user experience of the charging device 100.

[0066] Please refer to Figure 3 , Figure 4 , Figure 6 and Figure 7 In some embodiments, the first light guide 71 includes a light-incident surface 714 and a reflective surface 715. The light-incident surface 714 is opposite to the indicator light 50, and the light emitted by the indicator light 50 enters the interior of the first light guide 71 through the light-incident surface 714. The reflective surface 715 is opposite to the light-incident surface 714, and the reflective surface 715 is a curved surface that convexes outward in a direction away from the light-transmitting hole 113. The reflective surface 715 is configured to reflect the light entering from the light-incident surface 714 toward the first light guide 71.

[0067] Specifically, the light-incident surface 714 is the surface in the first light guide section 71 that is initially used to receive the light emitted by the indicator light 50. The light-incident surface 714 is opposite to the indicator light 50 to fully receive the light emitted by the indicator light 50. The light-incident surface 714 can be the surface of the dominant photon section 711 opposite to the indicator light 50, or it can be the surface of both the dominant photon section 711 and the branch photon section 713 opposite to the indicator light 50. At this time, the light emitted by the indicator light 50 enters the interior of the first light guide section 71 through the light-incident surface 714 to propagate within the first light guide section 71.

[0068] The reflecting surface 715 is the surface in the first light guide 71 used to reflect light. The reflecting surface 715 is opposite to the incident surface 714. At least a portion of the light entering the first light guide 71 through the incident surface 714 can propagate to the reflecting surface 715 and be emitted there. The reflecting surface 715 can be at least a portion of the outer surface of the dominant photon unit 711, or it can be a combination of at least a portion of the surface of the dominant photon unit 711 and at least a portion of the outer surface of the supporting photon unit 713. Specifically, to ensure good light reflection, the reflecting surface 715 is curved and convex outwards in a direction away from the light-transmitting hole 113. Light entering from the incident surface 714 is reflected by the reflecting surface 715 and propagates into the first light guide 71, allowing the light to travel in a certain direction according to the shape of the first light guide 71, and finally enter the second light guide 73. In some embodiments, the reflection of light on the reflective surface 715 is total internal reflection, in which all of the light can be reflected by the reflective surface 715 and propagate into the first light guide 71, resulting in higher light utilization.

[0069] In summary, in the light guide 70 of this application, the light emitted by the indicator light 50 enters the interior of the first light guide 71 through the light incident surface 714, and the reflective surface 715 reflects the light so that it propagates further into the interior of the first light guide 71. At this time, the light can propagate in the interior of the first light guide 71 in a preset direction under the combined action of the light incident surface 714 and the reflective surface 715, and finally enter the second light guide 73. At this time, more light can be transmitted to the outside of the charging device 100. Therefore, the user can receive a greater intensity of light transmitted to the outside of the charging device 100, and the user can obtain at least some of the working status information of the charging device 100 more clearly, resulting in a better user experience of the charging device 100. In addition, the reflective surface 715 is a curved surface that convexes outward in a direction away from the light-transmitting hole 113. Compared with making the reflective surface into an inclined plane, it reduces sharp corners and can avoid scratching other components during installation.

[0070] Please refer to Figure 3 , Figure 4 , Figure 6 and Figure 7In some embodiments, the first light guide 71 includes a light incident surface 714 and a connecting surface 716. The light incident surface 714 is opposite to the indicator light 50, and the light emitted by the indicator light 50 enters the interior of the first light guide 71 through the light incident surface 714. The connecting surface 716 connects the second light guide 73 and the light incident surface 714, and the connecting surface 716 is a curved surface that convexes outward in a direction away from the light transmission hole 113.

[0071] Specifically, the connecting surface 716 is the surface in the first light guide 71 used to connect the second light guide 73 and the incident surface 714. The connecting surface 716 can also be used to reflect light. The connecting surface 716 is at least a part of the outer surface of the dominant photon section 711. In order to make the connecting surface 716 have a better reflection effect on light, the connecting surface 716 is also curved and convexes outward in a direction away from the light-transmitting hole 113. At this time, the light entering from the incident surface 714 is reflected by the reflecting surface 715 and / or the connecting surface 716 and propagates into the first light guide 71, so that the light is transmitted in a certain direction according to the shape of the first light guide 71 and finally enters the second light guide 73. In some embodiments, the reflection of light at the connecting surface 716 is total internal reflection. In this case, all parts of the light can be reflected by the connecting surface 716 and propagate into the first light guide 71, resulting in higher light utilization. Similarly, the connecting surface 716 is a curved surface that bulges outward in a direction away from the light-transmitting hole 113. Compared to making the connecting surface into an inclined plane, it also reduces sharp corners and can also avoid scratching other components during installation.

[0072] In summary, in the light guide 70 of this application, the light emitted by the indicator light 50 enters the interior of the first light guide 71 through the light incident surface 714, and the connecting surface 716 and / or the reflecting surface 715 reflect the light so that it propagates further into the interior of the first light guide 71. At this time, the light can propagate in the interior of the first light guide 71 in a preset direction under the combined action of the light incident surface 714, the connecting surface 716, and the reflecting surface 715, and finally enter the second light guide 73. At this time, more light can be transmitted to the outside of the charging device 100. Therefore, the user can receive a greater intensity of light transmitted to the outside of the charging device 100, and the user can obtain at least some of the working status information of the charging device 100 more clearly, resulting in a better user experience of the charging device 100.

[0073] Please refer to Figure 3 and Figure 4 In some embodiments, the light-transmitting hole 113 is a through hole that penetrates the housing 10, the second light guide 73 is housed in the through hole, and a sealing element is provided between the second light guide 73 and the inner wall of the through hole.

[0074] Specifically, in the above embodiment, the light-transmitting hole 113 is a through hole formed on the housing 10, and the light-transmitting hole 113 penetrates the housing 10. In this case, the structure of the light-transmitting hole 113 is relatively simple and the processing method is relatively easy. In addition, the shape of the through hole can be circular, elliptical, square, rhomboid, or irregular, etc., and is not limited here. The second light guide 73 is housed inside the through hole (light-transmitting hole 113) so that the light transmitted through the second light guide 73 can be directly transmitted from the through hole to the outside of the housing 10.

[0075] Since there may be a gap between the second light guide portion 73 and the inner wall of the light-transmitting hole 113, a sealing element (not shown) is provided between the second light guide portion 73 and the inner wall of the light-transmitting hole 113 to prevent external impurities from entering the receiving cavity 111 through the gap and affecting the normal operation of the charging device 100. The sealing element is a component used to seal the gap between the second light guide portion 73 and the inner wall of the light-transmitting hole 113. The sealing element is disposed between the second light guide portion 73 and the light-transmitting hole 113. In some embodiments, the sealing element is sleeved on the second light guide portion 73. Exemplarily, the sealing element may be made of at least one of the following materials: rubber, silicone, plastic, or synthetic fiber. Among them, the rubber material includes, but is not limited to, natural rubber, nitrile rubber, fluororubber, polyurethane rubber, EPDM rubber, or silicone rubber.

[0076] At this point, the structure of the light-transmitting hole 113 is relatively simple, the processing cost of the housing 10 is low, and a large proportion of the light transmitted from the second light guide 73 is transmitted to the outside of the housing 10 through the light-transmitting hole 113. This allows the user to clearly obtain at least some of the operating status information of the charging device 100, resulting in a better user experience. Furthermore, the sealing element prevents external impurities from entering the receiving cavity 111 through the gap between the second light guide 73 and the inner wall of the light-transmitting hole 113. Other components of the charging device 100 are not affected, resulting in good structural stability and a long service life for the charging device 100.

[0077] Please refer to Figure 3 and Figure 4 In some embodiments, the housing 10 includes a first side 101 and a second side 103 facing away from each other. The first side 101 of the housing 10 is located inside the receiving cavity 111, and the second side 103 of the housing 10 is located outside the receiving cavity 111. The light-transmitting hole 113 includes a first sub-hole 1131 and a plurality of second sub-holes 1133. The first sub-hole 1131 is a blind hole formed by recessing from the first side 101 of the housing 10 toward the second side 103 of the housing 10, and the second light guide portion 73 is accommodated in the blind hole. The plurality of second sub-holes 1133 are disposed at the bottom of the blind hole and communicate with the blind hole and the outside of the housing 10.

[0078] Specifically, in the direction from the accommodating cavity 111 to the outside of the charging device 100, the housing 10 includes a first side 101 located inside the accommodating cavity 111 and a second side 103 located outside the accommodating cavity 111, with the first side 101 and the second side 103 facing away from each other. The first sub-hole 1131 is a spatial structure in the light-transmitting hole 113 for accommodating the second light guide 73. The first sub-hole 1131 is a blind hole, that is, a hole that does not penetrate the housing 10 and is formed by recessing from the first side 101 of the housing 10 to the second side 103 of the housing 10. The second light guide 73 is accommodated inside the blind hole (first sub-hole 1131) so that the light transmitted through the second light guide 73 can be transmitted to the first sub-hole 1131, specifically to the bottom of the first sub-hole 1131.

[0079] The second sub-hole 1133 is a spatial structure within the light-transmitting hole 113 used to allow light transmitted to the first sub-hole 1131 to pass through and reach the second side 103 of the housing 10. There are multiple second sub-holes 1133, which are opened at the bottom of the first sub-hole 1131. At this time, the multiple second sub-holes 1133 connect the first sub-hole 1131 and the outside of the housing 10. Therefore, the light transmitted from the second light guide 73 can be transmitted to the outside of the housing 10 sequentially from the first sub-hole 1131 and the second sub-hole 1133, or it can be transmitted directly to the outside of the housing 10 from the second sub-hole 1133. It is understandable that the sum of the flow areas of all the second sub-holes 1133 is less than the flow area of ​​the first sub-hole 1131. At this time, the light transmitted to the outside of the housing 10 through the second sub-holes 1133 is relatively soft. Furthermore, by designing the shape and position of the multiple second sub-holes 1133, the light-transmitting holes 113 can have a more beautiful and recognizable light-emitting state, making the charging device 100 more aesthetically pleasing and providing a better user experience.

[0080] Please refer to Figure 3 and Figure 4 In some embodiments, when the light-transmitting hole 113 includes a first sub-hole 1131 and a plurality of second sub-holes 1133, the plurality of second sub-holes 1133 are evenly distributed at the bottom of the blind hole. Specifically, when the plurality of second sub-holes 1133 are evenly distributed at the bottom of the first sub-hole 1131, on the one hand, the processing of the second sub-holes 1133 is relatively simple, and the light transmitted to the outside of the housing 10 through the second sub-holes 1133 is more uniform. On the other hand, at least a portion of the structure of the housing 10 corresponding to the bottom of the first sub-hole 1131 has better structural consistency. At this time, the housing 10 is less prone to stress concentration, has better structural strength and structural stability, and the charging device 100 has a longer service life.

[0081] Please refer to Figures 3 to 5 In some embodiments, the second sub-hole 1133 is circular, and the diameter of the second sub-hole 1133 is greater than or equal to 0.10 mm and less than or equal to 0.14 mm.

[0082] Specifically, the size of the second sub-hole 1133 directly affects the proportion of light transmitted through the second sub-hole 1133 to the outside of the housing 10, as well as the ease of processing the second sub-hole 1133. When the second sub-hole 1133 is circular, its diameter can be, but is not limited to, any one or any two of 0.10mm, 0.104mm, 0.108mm, 0.112mm, 0.116mm, 0.12mm, 0.124mm, 0.128mm, 0.132mm, and 0.14mm. If the diameter of the second sub-hole 1133 is less than 0.10mm, the size of the second sub-hole 1133 is too small, which increases the processing difficulty and cost, and may also increase the defect rate of the housing 10. If the diameter of the second sub-hole 1133 is greater than 0.14 mm, then the size of the second sub-hole 1133 is too large. In this case, the proportion of light transmitted through the second sub-hole 1133 to the outside of the housing 10 is too large, and the second sub-hole 1133 cannot effectively soften the light, affecting the aesthetics of the charging device 100. Therefore, the diameter of the second sub-hole 1133 is within the range mentioned above. This simplifies the processing of the second sub-hole 1133 and reduces production costs, while also ensuring that the second sub-hole 1133 softens the light, giving the light-transmitting hole 113 a more aesthetically pleasing and easily recognizable light emission state. This improves the aesthetics of the charging device 100 and enhances the user experience.

[0083] Please refer to Figures 3 to 5 In some embodiments, the distance between the centers of each second sub-hole 1133 is greater than or equal to 0.18 mm and less than or equal to 0.22 mm.

[0084] Specifically, in this application, the second sub-hole 1133 is illustrated as a circular hole. The shape of the second sub-hole 1133 can also be square, rhomboid, elliptical, or irregular, etc., and this application does not impose any limitations on this. The distance between the centers of each second sub-hole 1133 directly affects the proportion of light transmitted through the second sub-hole 1133 to the outside of the housing 10, as well as the ease of processing the second sub-hole 1133. The distance between the centers of each second sub-hole 1133 can be, but is not limited to, any one or any two of the following values: 0.18mm, 0.184mm, 0.188mm, 0.192mm, 0.196mm, 0.20mm, 0.204mm, 0.208mm, 0.212mm, and 0.22mm. If the distance between the centers of each second sub-hole 1133 is less than 0.18 mm, the distance is too small, making the processing of the second sub-holes more difficult, increasing processing costs, and potentially increasing the defect rate of the housing 10. If the distance between the centers of each second sub-hole 1133 is greater than 0.22 mm, the distance is too large, resulting in a small proportion of light transmitted through the second sub-holes 1133 to the outside of the housing 10, leading to weak light intensity received by the user and rendering the indicator light 50 ineffective. Therefore, the inner dimensions of the second sub-holes 1133 are within the aforementioned range, which simplifies the processing of the second sub-holes 1133, reduces production costs, and ensures strong light intensity emitted by the second sub-holes 1133, allowing the user to effectively identify the working status information transmitted by the indicator light 50.

[0085] Please refer to Figure 1 , Figure 2 and Figure 5 In some embodiments, the charging device 100 further includes a connecting assembly 91. The housing 10 includes a base 11 and a top cover 13. The top cover 13 is rotatably connected to the base 11 via the connecting assembly 91 and can be switched between an open state and a closed state. The first direction Z is the direction from the top cover 13 to the base 11 when the charging device 100 is closed, or the direction from the base 11 to the top cover 13. When the charging device 100 is placed on the platform to charge the earphone 300, the base 11 is supported on the platform, and the top cover 13 is away from the platform.

[0086] Specifically, the base 11 is the structure of the charging device 100 used in its normal operating orientation to support the earphone 300. The top cover 13 is the structure of the charging device 100 used to cooperate with the base 11 to form a receiving cavity 111 for accommodating the earphone 300. The connecting component 91 is the structure used to connect the base 11 and the top cover 13. The connecting component 91 can be, but is not limited to, a hinge or a flexible connector, etc., in which case the top cover 13 and the base 11 are rotatably connected. The top cover 13 has an open state and a closed state relative to the base 11. When the top cover 13 is in the open state relative to the base 11, one end of the top cover 13 is rotatably connected to the base 11, and the other end is away from the base 11; when the top cover 13 is in the closed state relative to the base 11, both ends of the top cover 13 are connected to the base 11.

[0087] It is understood that when the charging device 100 is closed, the direction from the top cover 13 to the base 11 and the direction from the base 11 to the top cover 13 are the thickness directions of the charging device 100, i.e., the first direction Z defined in this application. At this time, when the charging device 100 is placed on the platform to charge the earphone 300, the earphone 300 is sandwiched between the base 11 and the top cover 13. At least a portion of the base 11 abuts against and rests on the platform, and the top cover 13 is separated from the platform by the base 11 and is away from the platform. Therefore, in the charging device 100 of this application, the housing 10 includes the base 11 and the top cover 13. When the charging device 100 is placed on the platform in the normal use direction, the platform, the base 11, and the top cover 13 are stacked in sequence, and the earphone 300 can be stably sandwiched between the base 11 and the top cover 13.

[0088] Please refer to Figure 1 , Figure 2 and Figure 5 In some embodiments, the base 11 has a receiving cavity 111 and a light-transmitting hole 113. The base 11 and the upper cover 13 form a charging compartment 15, which is used to house the earphones 300. When the upper cover 13 is in a first position relative to the base 11 and is in a closed state, the upper cover 13 and the base 11 abut against each other in the first direction Z, and the charging compartment 15 is closed. When the upper cover 13 is in a second position relative to the base 11 and is in an open state, the upper cover 13 and the base 11 are no longer in contact in the first direction Z, and the charging compartment 15 is open.

[0089] Specifically, the base 11 is a specific structure for accommodating functional components such as the circuit board 30, indicator light 50, and light guide 70 in the charging device 100. The space structure enclosed by the base 11 is the accommodating cavity 111, and the light-transmitting hole 113 is opened on the base 11. The space structure enclosed by the base 11 and the top cover 13 is the charging compartment 15. It can be understood that the shape and size of the inner contour of the charging compartment 15 are adapted to (basically the same as) the shape and size of the outer contour of the earphone 300.

[0090] When the top cover 13 is closed, it is in a first position relative to the base 11. At this time, in the first direction Z, at least a portion of the surface of the top cover 13 near the base 11 abuts against at least a portion of the surface of the base 11 near the top cover 13, and the charging case 15 is closed, allowing the earphones 300 to be placed inside the charging case 15. When the top cover 13 is open, it is in a second position relative to the base 11. At this time, in the first direction Z, at least a portion of the surface of the top cover 13 near the base 11 is released from contact with at least a portion of the surface of the base 11 near the top cover 13, and the charging case 15 is open, allowing the earphones 300 to be placed in or removed from at least a portion of the charging case 15.

[0091] Therefore, the top cover 13 and the base 11 of this application can abut or release abut in the first direction Z to achieve the closing or opening of the charging case 15. At this time, the earphone 300 can be placed in the charging case 15 for charging or taken out of the charging case 15 for use. The cooperation process between the earphone 300 and the charging device 100 is relatively simple.

[0092] Please refer to Figure 3 , Figure 5 and Figure 5 In some embodiments, the top wall of the base 11 is provided with a button hole 115. The charging device 100 also includes a switch 93 and a button 95. The switch 93 is disposed on the first surface 301 of the circuit board 30 and housed within the receiving cavity 111. The button 95 is disposed within the button hole 115. The button 95 is opposite to the switch 93 and is elastically connected to the top wall of the base 11. The button 95 is configured to move toward the switch 93 when pressed to trigger the switch 93, and to automatically reset to block the button hole 115 when released from pressure. The pressing direction of the button 95 is parallel to the first direction Z.

[0093] Specifically, the button hole 115 is a spatial structure for accommodating at least a portion of the button 95. The button 95 is a structure in the charging device 100 that can be operated by an operator to control the charging device 100 or the headphone system 1000. At least a portion of the button 95 is located inside the button hole 115 and protrudes beyond the outer wall of the base 11, making it easier for the user to observe the position of the button 95 and conveniently press or release it. In some embodiments, at least a portion of the button 95 is deformable; when the button 95 is pressed, this portion deforms to achieve an elastic connection between the button 95 and the top wall of the base 11. In some embodiments, a deformable element (not shown) is provided between the button 95 and the base 11, and the deformable element is connected to both the button 95 and the base 11. When the button 95 is pressed, the deformable element deforms to achieve an elastic connection between the button 95 and the top wall of the base 11.

[0094] Switch 93 is a device that outputs a control signal in response to the triggering of button 95. Switch 93 can be, but is not limited to, a microswitch, a tactile switch, or a Hall effect switch. Switch 93 is disposed on the first surface 301 of circuit board 30 and is electrically connected to circuit board 30. When button 95 is pressed, button 95 triggers switch 93 through pressure (e.g., if switch 93 is a tactile switch) or other dimensional information (e.g., a change in magnetic field, corresponding to switch 93 being a Hall effect switch). The position of switch 93 corresponds to the position of button 95 to ensure that switch 93 can respond to the triggering of button 95.

[0095] This application uses button 95 as an example to illustrate the principle of triggering switch 93 via pressure. Please refer to [link / reference]. Figure 4 and Figure 5 The pressing direction of button 95 is parallel to the first direction Z. When button 95 is pressed, it moves toward switch 93 to trigger switch 93. The control signal output by switch 93 can be used to control charging device 100 or headphone system 1000. For example, when switch 93 is triggered in a first manner (e.g., when button 95 is pressed once), charging device 100 charges headphone 300. When switch 93 is triggered in a second manner (e.g., when button 95 is pressed twice), charging device 100 suspends charging headphone 300. When button 95 is released, due to the elastic connection between button 95 and the top wall of base 11, the elastic force causes button 95 to move toward button hole 115, and button 95 automatically returns to its original position to seal button hole 115.

[0096] In summary, the charging device 100 of this application is provided with a button 95 and a switch 93 that cooperates with the button 95. When the switch 93 is triggered by the button 95, the charging device 100 or the headphone system 1000 can be controlled. At this time, the charging device 100 and the headphone system 1000 can be equipped with more functions to better meet the needs of users.

[0097] Please refer to Figure 1 , Figure 2 and Figure 5 In some embodiments, the charging device 100 further includes a charging port 117, which is located on the side of the base 11 away from the light-transmitting hole 113, and the central axis of the charging port 117 is perpendicular to the first direction Z.

[0098] Specifically, the charging port 117 is used to connect to an external power source to replenish the energy storage device of the charging device 100. The charging port 117 is located on the base 11, specifically on the side of the base 11 facing away from the light-transmitting hole 113. In this case, when the charging port 117 is connected to the external power source, the direction of the light-transmitting hole 113 is away from the external power source, allowing the user to better observe the light emitted from the light-transmitting hole 113. The central axis of the charging port 117 is perpendicular to the first direction Z. The charging port 117 may include, but is not limited to, a USB interface, a Type-C interface, or a Lightning interface. The charging port 117 is electrically connected to the energy storage device, so that when the charging port 117 is connected to the external power source, the external power source can charge the energy storage device. Therefore, the charging device 100 can replenish the energy storage device through the charging port 117, allowing the user to carry the charging device 100 with them for flexible charging of the headphones 300, resulting in a better user experience.

[0099] In the description of this specification, the references to terms such as "some embodiments," "in one example," "exemplarily," etc., indicate that a specific feature, structure, material, or characteristic described in connection with an embodiment or example is included in at least one embodiment or example of this application. 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.

[0100] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A charging device for charging earphones, characterized in that, include: The housing has a receiving cavity and a light-transmitting hole, the light-transmitting hole connecting the receiving cavity to the outside of the charging device; A circuit board is housed within the accommodating cavity, the circuit board having a first side and a second side facing away from each other in a first direction; An indicator light, housed within the receiving cavity, is disposed on the first side of the circuit board and electrically connected to the circuit board; the indicator light is configured to emit light. A light guide is housed within the housing, the light guide is connected to a first surface of the circuit board, at least a portion of the light guide is aligned with the light-transmitting hole, and the projection of the portion of the light guide located in the housing cavity onto the circuit board along the first direction is within the area of ​​the first surface of the circuit board. The light guide is configured to guide the light emitted by the indicator light to the light-transmitting hole.

2. The charging device of claim 1, wherein, The light guide component includes: A first light guide portion is connected to the circuit board. The projection of the first light guide portion toward the circuit board along the first direction is located within the area of ​​the first surface of the circuit board. The projection of the indicator light onto the first surface of the circuit board is located within the projection of the first light guide portion onto the first surface of the circuit board. A second light guide portion is connected to the first light guide portion, and the second light guide portion is housed within the light-transmitting hole, wherein: The first light guide is configured to guide the light emitted by the indicator light toward the second light guide, and the second light guide is configured to guide the light introduced from the first light guide to the interior of the light-transmitting hole.

3. The charging device of claim 2, wherein, The first light guide portion includes: The dominant photonics unit is connected at one end to the second light guide unit; Two support sub-parts are spaced apart and connected at opposite ends in the first direction to the circuit board and the dominant photonic part, respectively, so that the dominant photonic part is spaced apart from the circuit board and the second light guide extends into the light-transmitting hole; and A branch photonic unit is connected to the side of the two support sub-units away from the light-transmitting hole, and / or the branch photonic unit is connected to the other end of the main photonic unit. The branch photonic unit and the two support sub-units surround the indicator light so that at least a portion of the light emitted by the indicator light is received by the branch photonic unit and / or the support sub-units and enters the first light guide unit.

4. The charging device according to claim 2, characterized in that, The first light guide includes a light-incident surface and a reflective surface. The light-incident surface faces the indicator light, and the light emitted by the indicator light enters the interior of the first light guide through the light-incident surface. The reflective surface is opposite to the light-incident surface and is a curved surface that convexes outward in a direction away from the light-transmitting hole. The reflective surface is configured to reflect the light entering from the light-incident surface toward the first light guide; and / or, The first light guide includes a light incident surface and a connecting surface. The light incident surface is opposite to the indicator light, and the light emitted by the indicator light enters the interior of the first light guide through the light incident surface. The connecting surface connects the second light guide and the light incident surface, and the connecting surface is a curved surface that convexes outward in a direction away from the light-transmitting hole.

5. The charging device according to claim 4, characterized in that, The light-transmitting hole is a through-hole penetrating the housing, the second light-guiding part is housed within the through-hole, and a sealing element is provided between the second light-guiding part and the inner wall of the through-hole; or, The housing includes a first side and a second side facing away from each other. The first side of the housing is located inside the accommodating cavity, and the second side of the housing is located outside the accommodating cavity. The light-transmitting hole includes a first sub-hole and a plurality of second sub-holes. The first sub-hole is a blind hole formed by recessing from the first side of the housing towards the second side of the housing. The second light guide is accommodated in the blind hole. The plurality of second sub-holes are disposed at the bottom of the blind hole and communicate with the blind hole and the outside of the housing.

6. The charging device of claim 5, wherein, In the case where the light-transmitting hole includes the first sub-hole and a plurality of second sub-holes, the plurality of second sub-holes are evenly distributed at the bottom of the blind hole; and / or, The second sub-hole is circular, and its diameter is greater than or equal to 0.10 mm and less than or equal to 0.14 mm; and / or, The distance between the centers of each of the second sub-holes is greater than or equal to 0.18 mm and less than or equal to 0.22 mm.

7. The charging device according to any one of claims 1 to 6, characterized in that The charging device further includes a connection component; the housing includes: Base; and The top cover is rotatably connected to the base via the connecting component and can switch between an open state and a closed state. The first direction is the direction from the top cover to the base when the charging device is closed, or the direction from the base to the top cover. When the charging device is placed on the platform to charge the earphones, the base is supported on the platform and the top cover is away from the platform.

8. The charging device of claim 7, wherein, The base is provided with the accommodating cavity and the light-transmitting hole. The base and the upper cover form a charging compartment, which is used to accommodate the earphones. When the upper cover is in the closed state and is in the first position relative to the base, the upper cover abuts against the base in the first direction, and the charging compartment is closed. When the top cover is in the second position relative to the base and is in the open state, the top cover and the base are released from contact in the first direction, and the charging compartment is opened.

9. The charging device of claim 8, wherein, The top wall of the base is provided with a button hole; the charging device also includes: A switch is disposed on the first side of the circuit board and housed within the receiving cavity; and A button is disposed in the button hole, the button is opposite to the switch and elastically connected to the top wall of the base, the button is configured to move toward the switch to trigger the switch when pressed, and automatically reset to block the button hole when released from pressing, the pressing direction of the button is parallel to the first direction; and / or; The charging device further includes a charging port, which is located on the side of the base away from the light-transmitting hole, and the central axis of the charging port is perpendicular to the first direction.

10. An earphone system, characterized by include: The charging device according to any one of claims 1-9; and The earphones, wherein the charging device is used to charge the earphones.

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