A charging device

Abstract

This application relates to the field of electronic device technology, and in particular discloses a charging device, including: a housing with a receiving space and a first through hole; a power supply component housed in the receiving space, a portion of the power supply component corresponding to the first through hole to facilitate communication between the power supply component and the outside; a light-emitting device housed in the receiving space and electrically connected to the power supply component; and a light guide component having a light-incident end and a light-emitting surface surrounding the light-incident end, the light-incident end corresponding to the light-emitting device, and light emitted by the light-emitting device entering from the light-incident end and exiting from the light-emitting surface. Through this method, this application embodiment can utilize only one light-emitting device in conjunction with a light guide component, so that the light emitted by the light-emitting device is transmitted through the light-incident end of the light guide component to the light-emitting surface, resulting in a uniform light emission state of the light guide component, achieving a display effect similar to a scheme with multiple light-emitting components surrounding the display.

Description

Technical Field

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

[0002] As an electronic device that transmits data and supplies power to mobile devices, a vehicle charging device is integrated into a vehicle. A vehicle charging device typically includes a power supply component for supplying power to the mobile device, a housing for housing components, and a light guide component for indicating the location of the vehicle charging device to the user. The light guide component is electrically connected to the power supply component and is adjacent to the power supply component to indicate the location of the vehicle charging device to the user in low-light environments. Both the light guide component and the power supply component are housed within the housing.

[0003] In the process of realizing this application, the inventors of this application discovered that: Currently, the light guide assembly of a vehicle charging device includes multiple light-emitting devices and a light guide ring corresponding to the light-emitting devices. The light guide ring has an input end and an output end. The light emitted by the multiple light-emitting devices enters from the input end and exits from the output end, so as to provide an indication to the user. However, the structure of multiple light-emitting devices combined with the light guide ring makes the vehicle charging device large in size, which is not conducive to the integration of the vehicle charging device. Moreover, the use of multiple light-emitting devices increases the manufacturing cost of the vehicle charging device. Utility Model Content

[0004] This application provides a charging device, which mainly solves the technical problem that existing charging devices have too many light-emitting devices for prompting, resulting in a large overall size of the charging device and high manufacturing cost due to the use of multiple light-emitting devices.

[0005] To solve the above-mentioned technical problems, one technical solution adopted in this application is: to provide a charging device, including a housing with a receiving space and a first through hole, a power supply component being received in the receiving space, a portion of the power supply component corresponding to the first through hole to facilitate communication between the power supply component and the outside world, a light-emitting device being received in the receiving space, the light-emitting device being electrically connected to the power supply component, and a light guide component having a light-incident end and a light-emitting surface surrounding the light-incident end, the light-incident end corresponding to the light-emitting device, and light emitted by the light-emitting device entering from the light-incident end and exiting from the light-emitting surface.

[0006] Optionally, the light guide assembly includes a light guide strip, which is curled around the periphery of the first through hole to enclose the first through hole.

[0007] Optionally, the light guide strip has multiple recesses on its light-emitting surface to improve the uniformity of the light emitted from the light-emitting device.

[0008] Optionally, the depth of each of the recesses gradually increases along the extension direction of the light guide strip.

[0009] Optionally, the light guide assembly includes a light guide frame, which is detachably mounted on the power supply assembly. The light guide frame is provided with an annular groove, and the light guide strip is received within the annular groove.

[0010] Optionally, the light guide frame is provided with multiple buckles at the opening of the annular groove, and the multiple buckles press the light guide strip.

[0011] Optionally, the power supply component includes a circuit board and a connector, the circuit board and the connector are electrically connected, the light guide frame is disposed on the circuit board, the light guide frame is provided with a second through hole, the second through hole is located within the encircling range of the annular groove, the connector is inserted into the second through hole and partially extends out of the second through hole, the second through hole corresponds to the first through hole.

[0012] Optionally, the circuit board is provided with two slots located on both sides of the connector, and the light guide frame is provided with two snap-fit ​​parts, one of which is inserted into one of the slots.

[0013] Optionally, the housing includes a front cover and a rear cover, the first through hole is provided in the front cover, the front cover is provided with a hook, and the rear cover is provided with a protrusion. The protrusion engages with the hook so that the front cover and the rear cover together enclose the receiving space.

[0014] Optionally, the charging device includes a conductive element, one end of which is electrically connected to the power supply component. The rear shell is provided with a third through hole, which communicates with the receiving space. The other end of the conductive element extends into the third through hole to facilitate electrical connection between the conductive element and an external power source.

[0015] The beneficial effects of this application embodiment are as follows: Unlike existing technologies, this application embodiment provides a charging device including a housing, a power supply component, a light-emitting device, and a light guide component. The housing has a receiving space and a first through-hole. The power supply component is housed in the receiving space, with a portion of the power supply component corresponding to the first through-hole to facilitate communication between the power supply component and the outside. The light-emitting device is housed in the receiving space and is electrically connected to the power supply component. The light guide component has a light-incident end and a light-emitting surface surrounding the light-incident end. The light-incident end corresponds to the light-emitting device, and the light emitted by the light-emitting device enters from the light-incident end and exits from the light-emitting surface. With this structure, this application embodiment only requires one light-emitting device in conjunction with the light guide component to indicate the power supply component at the first through-hole of the charging device. Compared to existing charging devices that use multiple light-emitting devices with complex aperture structures, this application has a simpler and lower-cost structure, which is beneficial for the widespread adoption of the indicating function of charging devices. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments of this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the drawings without creative effort.

[0017] Figure 1 This is an exploded structural diagram of the charging device provided in the embodiments of this application;

[0018] Figure 2 This is a schematic diagram of the assembly structure of the charging device provided in the embodiments of this application;

[0019] Figure 3 This is a cross-sectional structural schematic diagram of the charging device provided in the embodiments of this application;

[0020] Figure 4 This is an enlarged schematic diagram of the light guide component of the charging device provided in the embodiments of this application;

[0021] Figure 5 This is a schematic diagram of the power supply component of the charging device provided in the embodiments of this application;

[0022] Figure 6 This is a schematic diagram of the structure of the housing of the charging device provided in the embodiments of this application.

[0023] Icon labels:

[0024] 100. Charging device;

[0025] 1. Light guide assembly; 11. Light input end; 12. Light output surface; 1a. Light guide strip; 1a1. Recess; 1a2. Slot; 1b. Light guide frame; 1b1. Ring groove; 1b2. Buckle; 1b3. Second through hole; 1b4. Snap-fit ​​part; 13. Abutment part; 14. Snap-fit ​​groove;

[0026] 2. Power supply components; 21. Circuit board; 211. Slot; 22. Connector;

[0027] 3. Light-emitting devices;

[0028] 4. Housing; 41. Receiving space; 42. First through hole; 4a. Front cover; 4a1. Hook; 4a2. Slot; 4b. Rear cover; 4b1. Snap protrusion; 4b2. Insertion part; 4b3. Third through hole; 43. Snap protrusion;

[0029] 5. Conductive components. Detailed Implementation

[0030] To facilitate understanding of this application, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as being "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as being "connected" to another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this specification are for illustrative purposes only.

[0031] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of this application. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0032] Traditional charging devices typically include a power supply component, a housing housing the components, and a light guide component for user guidance. The light guide component is electrically connected to the power supply component and is adjacent to it to indicate the location of the charging device in low-light environments. Both the light guide component and the power supply component are housed within the housing. The light guide component in traditional charging devices has a complex structure, including multiple light-emitting devices and corresponding light guide rings. The light guide ring has an input end and an output end. Light emitted by the multiple light-emitting devices enters from the input end and exits from the output end, serving as a guide for the user. Each light-emitting device requires a corresponding fixing mechanism to align with the light guide ring, ensuring uniform light transmission. This complex structure of multiple light-emitting devices and a light guide ring results in a large volume in the charging device, hindering miniaturization and increasing overall manufacturing costs.

[0033] To address the aforementioned problems, this application provides a charging device 100 employing a light-emitting device. Please refer to [link to relevant documentation]. Figures 1 to 3 The charging device 100 includes a light guide component 1, a power supply component 2, a light-emitting device 3, and a housing 4. The power supply component 2, the light-emitting device 3, and the light guide component 1 are all housed within the housing 4, so that the housing 4 protects the power supply component 2, the light-emitting device 3, and the light guide component 1. The power supply component 2 and the light-emitting device 3 are electrically connected. The power supply component 2 is used to provide a channel for the light-emitting device 3 to communicate with an external power source. The power supply component 2 is also used to control the start and stop of the light-emitting device 3 and the magnitude of the current supplied to the light-emitting device 3. The light guide component 1 is correspondingly arranged with the light-emitting device 3 so that the light emitted by the light-emitting device 3 is refracted, guided, and transmitted by the light guide component 1 and illuminates the light according to a preset trajectory.

[0034] For details, please refer to Figure 3 , Figure 4 and Figure 6The housing 4 is provided with a receiving space 41 and a first through hole 42. The first through hole 42 communicates with the receiving space 41 to provide a pathway for the power supply component 2, the light-emitting device 3, and the light guide component 1, which are housed in the housing 4, to communicate with the outside world. The light-emitting device 3 and the power supply component 2 are both housed in the receiving space 41. A portion of the power supply component 2 corresponds to the first through hole 42 to facilitate communication between the power supply component 2 and the outside world (i.e., the power supply component 2 provides an interface for the user to connect to the power supply). The light guide component 1 has a light-incident end 11 and a light-emitting surface 12 surrounding the light-incident end 11. The light-incident end 11 corresponds to the light-emitting device 3 so that the light emitted by the light-emitting device 3 directly illuminates the light-incident end 11. The light emitted by the light-emitting device 3 enters from the light-incident end 11 and exits from the light-emitting surface 12, thereby making the light guide component 1 present a certain brightness. This brightness can be transmitted to the outside world through the first through hole 42 so that the user can directly observe it. When a user needs to connect to a power source in a low-light environment, the light emitted by the light-emitting device 3 is transmitted through the light guide component 1 and shines to the outside through the first through hole 42, so that the user can quickly and accurately locate the charging device 100 in a low-light environment. The user can find the charging device 100 without external lighting, which improves the user experience. In addition, this application only requires one light-emitting device 3 to cooperate with the light guide component 1 to realize the indication function. The structure is simple, which is conducive to the miniaturization of the charging device 100, the manufacturing cost is low, and it is easy to mass-produce the charging device 100, thus improving the market competitiveness of the charging device 100 of this application.

[0035] In some embodiments, a light shield (not shown) is provided between the light-emitting device 3 and the light-incident end 11 of the light guide assembly 1. The light shield covers the gap between the light-emitting device 3 and the light guide assembly 1 to reduce the amount of light from the light-emitting device 3 leaking from the gap between the light-emitting device 3 and the light guide assembly 1.

[0036] Understandably, the light guide component 1 guides the light emitted by the light-emitting device 3 in various ways, forming different styles depending on the shape of the light guide component 1, including but not limited to: straight, ring, wave, rectangular, etc.

[0037] For example, a ring-shaped reminder pattern is used in this embodiment. For the light guide component 1 mentioned above, please refer to... Figure 4 The light guide assembly 1 includes a light guide strip 1a, which is rolled up around the periphery of the first through hole 42 to enclose the first through hole 42. The light guide strip 1a encloses the first through hole 42 to form a ring-shaped light guide structure, so that the light emitted by the light-emitting device 3 can be evenly irradiated from the inner wall of the first through hole 42 to the outside from the accommodating space 41. This method makes the light guide strip 1a provide all-round illumination for the first through hole 42, improving the indication effect of the charging device 100.

[0038] It should be noted that the shape of the cross-section of the light guide strip 1a includes, but is not limited to, a circle, a rectangle, a triangle, a polygon, or any irregular pattern. For example, in this application, the shape of the cross-section of the light guide strip 1a is preferably circular to improve the uniformity and transmission effect of the light from the light-emitting device 3.

[0039] In order to achieve the illumination indication function at the first through hole 42, it is necessary to ensure that the entire light guide strip 1a emits light. Therefore, microstructures need to be set on the outer surface of the light guide strip 1a to actively leak light. Examples will not be given here.

[0040] Understandably, due to the inherent light scattering characteristics of the light guide material and the energy attenuation effect in the transmission path, the brightness of the light in the far-end region will gradually decrease as the length of the light guide strip 1a increases. This brightness attenuation mainly stems from two factors: first, the energy loss caused by the light absorption characteristics inside the material; and second, the amount of light emitted by the microstructures on the outer surface of the light guide strip 1a gradually decreases with increasing length.

[0041] To solve the above problems, this application provides a plurality of recesses 1a1 on the light-emitting surface 12 of the light guide strip 1a. The recesses 1a1 change the internal reflection structure of the light guide strip 1a, thereby increasing the amount of light emitted from the light guide strip 1a through the recesses 1a1, so as to improve the uniformity of the light emitted from the light-emitting device 3 through the light-emitting surface 12.

[0042] Furthermore, along the extension direction of the light guide strip 1a, the depth of each pit 1a1 gradually increases. The gradually increasing depth of the pit 1a1 causes the number of light rays escaping from the pit 1a1 to gradually increase, thereby improving the brightness of the light guide strip 1a away from the light-emitting device 3 and homogenizing the overall brightness of the light guide strip 1a.

[0043] In some embodiments, please refer to Figure 4 The light guide assembly 1 includes a light guide frame 1b, which is detachably mounted on the power supply assembly 2. The light guide frame 1b is provided with an annular groove 1b1, and a light guide strip 1a is housed in the annular groove 1b1. The light guide strip 1a guides the light from the light-emitting device 3 back onto the light guide frame 1b. A portion of the light guide frame 1b corresponds to the first through hole 42, so that the light guided onto the light guide frame 1b can be transmitted to the external environment through the first through hole 42.

[0044] It should be noted that the light guide strip 1a is constrained by its own light guide structure and the final display effect formed by the recess 1a1, resulting in poor overall light uniformity. The light is further homogenized by the refraction of the light guide frame 1b, which improves the display effect of the light transmitted to the outside through the first through hole 42.

[0045] It is understandable that the light guide strip 1a is housed in the annular groove 1b1 in ways including but not limited to: snap-fit, magnetic attraction, adhesive bonding, etc.

[0046] For example, in this application, a snap-fit ​​1b2 is used. Specifically, the light guide frame 1b is provided with multiple snap-fits 1b2 in the groove of the annular groove 1b1. The multiple snap-fits 1b2 can generate elastic deformation. When assembling the light guide strip 1a, the multiple snap-fits 1b2 are pushed toward the groove away from the annular groove 1b1 so that the light guide can be smoothly pushed into the annular groove 1b1. After the light guide is pushed into the annular groove 1b1, the force applied to the multiple snap-fits 1b2 is released so that the multiple snap-fits 1b2 press the light guide strip 1a.

[0047] In some embodiments, the light guide strip 1a is provided with a slot 1a2, which is manufactured by cutting on the light guide strip 1a so that the end of the buckle 1b2 abuts against the slot 1a2, thereby improving the fixing effect of the buckle 1b2 on the light guide.

[0048] For the power supply component 2 mentioned above, please refer to... Figure 5 The power supply component 2 includes a circuit board 21 and a connector 22. The circuit board 21 and the connector 22 are electrically connected. The connector 22 serves as a socket adapted to the plug of an external device, facilitating power or data transmission by the user. The circuit board 21 is used to control the output current and voltage of the connector 22. The connector 22 can be of various types, including but not limited to USB-C, USB-A, and Lightning interfaces. For example, in this application, the connector 22 is of type USB-C.

[0049] In some embodiments, the light guide frame 1b is disposed on the circuit board 21, and the light guide frame 1b is provided with a second through hole 1b3. The second through hole 1b3 is located within the enclosed area of ​​the annular groove 1b1. The connector 22 is inserted into the second through hole 1b3 and partially extends out of the second through hole 1b3. The second through hole 1b3 corresponds to the first through hole 42. The above structure ensures that the light guided by the light guide member housed in the annular groove 1b1 can smoothly illuminate the connector 22 that partially extends out of the second through hole 1b3, so as to enhance the indication effect of the charging device 100 on the connector 22 in a dark environment.

[0050] It should be noted that the inner wall of the second through hole 1b3 completely covers the outer wall of the connector 22, and a portion of the light guide frame 1b can be observed from the first through hole 42, so that the light passing through the light guide frame 1b can be smoothly transmitted to the external environment.

[0051] Furthermore, the area of ​​the first through hole 42 needs to be larger than the area of ​​the second through hole 1b3 and smaller than the cross-sectional area enclosed by the outer side wall of the light guide frame 1b that wraps the connector 22, so as to ensure that while a part of the light guide frame 1b is exposed to the external environment through the first through hole 42, the other part is hidden in the receiving space 41, thereby forming a good display effect.

[0052] It should be noted that, in order to reduce the overall weight of the light guide frame 1b, the annular groove 1b1 can be partially enclosed and limited by multiple snap fasteners 1b2 and the light guide frame 1b that encloses and forms the second through hole 1b3.

[0053] Regarding the aforementioned detachable light guide frame 1b mounted on the power supply component 2, the following example illustrates that the light guide frame 1b can be detachably mounted on the power supply component 2 in ways including but not limited to: screw connection, snap-fit ​​connection, and elastic clamp connection. For instance, in this application, the light guide frame 1b is connected to the power supply component 2 via a snap-fit ​​connection.

[0054] For details, please refer to Figure 4 and Figure 5 The light guide frame 1b is provided with two snap-fit ​​parts 1b4, and the circuit board 21 is provided with two snap-fit ​​holes 211. The two snap-fit ​​holes 211 are located on both sides of the connector 22. One snap-fit ​​part 1b4 is inserted into one snap-fit ​​hole 211. The light guide frame 1b is snapped into the snap-fit ​​hole 211 through the snap-fit ​​part 1b4 and thus fixed to the circuit board 21. When the light guide frame 1b is snapped into the snap-fit ​​operation, the connector 22 needs to be inserted into the second through hole 1b3 first.

[0055] Furthermore, in order to improve the stability of the light guide frame 1b after it is snapped into the circuit board 21, in some embodiments, the light guide frame 1b is also provided with an abutment portion 13. The abutment portion 13 and the snap-in portion 1b4 are arranged in the same direction and spaced apart, thereby forming a snap-in groove 14 between the abutment portion 13 and the snap-in portion 1b4. When the light guide frame 1b is snapped into the snap hole 211, a portion of the circuit board 21 is accommodated in the snap-in groove 14, and the abutment portion 13 abuts against the side of the circuit board 21 away from the snap-in portion 1b4, so as to form a stable clamping connection structure between the light guide frame 1b and the circuit board 21, thereby improving the connection stability between the light guide frame 1b and the circuit board 21.

[0056] Regarding the aforementioned housing 4, please refer to 6. The housing 4 includes a front cover 4a and a rear cover 4b. A first through hole 42 is provided in the front cover 4a. The front cover 4a is provided with a hook 4a1, and the rear cover 4b is provided with a protrusion 4b1. The protrusion 4b1 and the hook 4a1 are hooked together so that the front cover 4a and the rear cover 4b together enclose and form a receiving space 41. The structure of the protrusion 4b1 and the hook 4a1 hooking together realizes the detachable connection of the front cover 4a and the rear cover 4b, which facilitates the maintenance and replacement of the power supply component 2.

[0057] Furthermore, the rear shell 4b extends towards the end of the front cover 4a with a plug-in portion 4b2, and the inner wall of the front shell is correspondingly provided with a slot 4a2. When the rear shell 4b and the front cover 4a are assembled, the plug-in portion 4b2 is inserted into the slot 4a2 to realize the pre-installation of the front cover 4a and the rear shell 4b. In the process of the plug-in portion 4b2 being inserted into the slot 4a2, the cooperation between the plug-in portion 4b2 and the slot 4a2 guides the engagement of the hook 4a1 and the protrusion 4b1, reducing the probability of misalignment when assembling the rear shell 4b and the front cover 4a, and improving the efficiency of assembling the rear shell 4b and the front cover 4a.

[0058] In some embodiments, please refer to Figure 1 The charging device 100 includes a conductive element 5, one end of which is electrically connected to the power supply component 2; the rear shell 4b is provided with a third through hole 4b3, which communicates with the receiving space 41, and the other end of the conductive element 5 extends into the third through hole 4b3 so as to facilitate the conductive element 5 to be electrically connected to an external power source.

[0059] Understandably, in order to improve the versatility of the charging device 100, the interface formed by the third through hole 4b3 and the conductive part 5 can be selected from commonly used interface types in the market, and will not be listed here.

[0060] In some embodiments, please refer to Figure 6 The outer surface of the housing 4 is provided with a snap-fit ​​protrusion 43, which is used for quick connection and fixation of the charging device 100 to equipment such as automobiles. Along the direction in which the charging device 100 is assembled on the external equipment, the cross-sectional area of ​​the snap-fit ​​protrusion 43 gradually increases, making the snap-fit ​​protrusion 43 present a slope shape, which improves the user experience of installing the charging device on the external equipment.

[0061] In this embodiment, the charging device includes a light guide component 1, a power supply component 2, a light-emitting device 3, and a housing 4. The housing 4 is provided with a receiving space 41 and a first through hole 42. The power supply component 2 is received in the receiving space 41, and a portion of the power supply component 2 corresponds to the first through hole 42 to facilitate communication between the power supply component 2 and the outside. The light-emitting device 3 is received in the receiving space 41 and is electrically connected to the power supply component 2. The light guide component 1 has a light-incident end 11 and a light-emitting surface 12 surrounding the light-incident end 11. The light-incident end 11 corresponds to the light-emitting device 3. The light emitted by the light-emitting device 3 enters from the light-incident end 11 and exits from the light-emitting surface 12. The above structure allows the charging device 100 to use only the light emitted by one light-emitting device 3. The light enters through the light-incident surface of the light guide component 1, passes through the light-emitting surface 12 of the light guide component 1 and passes through the first through hole 42 to the external environment, thus forming a prompt area for the user. This makes it easier for the user to use the charging device 100 in low-light environments. The charging device 100 with this structure is simple in structure and small in size. Moreover, compared with the charging device 100 with multiple light-emitting devices 3, the manufacturing cost of the charging device 100 of this application is lower, which enhances the market competitiveness of the charging device 100.

[0062] It should be noted that while preferred embodiments of this application are provided in the specification and accompanying drawings, this application can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are not intended to impose additional limitations on the content of this application; their purpose is to provide a more thorough and comprehensive understanding of the disclosure of this application. Furthermore, the above-described technical features can be combined with each other to form various embodiments not listed above, all of which are considered to be within the scope of this application's specification. Moreover, those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A charging device, characterized by, include: The housing has a receiving space and a first through hole; A power supply component is housed in the housing space, and a portion of the power supply component corresponds to the first through hole to facilitate communication between the power supply component and the outside world; A light-emitting device is housed in the housing space, and the light-emitting device is electrically connected to the power supply component; A light guide assembly has a light-incident end and a light-exiting surface surrounding the light-incident end. The light-incident end corresponds to the light-emitting device, and the light emitted by the light-emitting device enters from the light-incident end and exits from the light-exiting surface.

2. The charging device according to claim 1, characterized in that, The light guide assembly includes a light guide strip, which is curled around the periphery of the first through hole to enclose the first through hole.

3. The charging device according to claim 2, characterized in that, The light guide strip has multiple recesses on its light-emitting surface to improve the uniformity of the light emitted from the light-emitting device.

4. The charging device according to claim 3, characterized in that, Along the extension direction of the light guide strip, the depth of each of the recesses gradually increases.

5. The charging device according to claim 2, characterized in that, The light guide assembly includes a light guide frame, which is detachably mounted on the power supply assembly. The light guide frame is provided with an annular groove, and the light guide strip is received within the annular groove.

6. The charging device according to claim 5, characterized in that, The light guide frame is provided with multiple buckles at the opening of the annular groove, and the multiple buckles press the light guide strip.

7. The charging device according to claim 5, characterized in that, The power supply component includes a circuit board and a connector, and the circuit board and the connector are electrically connected. The light guide frame is disposed on the circuit board. The light guide frame is provided with a second through hole, which is located within the encircling area of ​​the annular groove. The connector is inserted into the second through hole and partially extends out of the second through hole. The second through hole corresponds to the first through hole.

8. The charging device according to claim 7, characterized in that, The circuit board is provided with two locking holes, which are located on both sides of the connector; The light guide frame is provided with two snap-fit ​​parts, one of which is inserted into one of the snap-fit ​​holes.

9. The charging device according to claim 1, characterized in that, The housing includes a front cover and a rear cover. The first through hole is provided in the front cover. The front cover is provided with a hook. The rear cover is provided with a protrusion. The protrusion engages with the hook so that the front cover and the rear cover together enclose the receiving space.

10. The charging device according to claim 9, characterized in that, The charging device includes a conductive element, one end of which is electrically connected to the power supply component; The rear shell is provided with a third through hole, which communicates with the receiving space. The other end of the conductive element extends into the third through hole to facilitate electrical connection between the conductive element and an external power source.

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