Charging device

Abstract

The application discloses a charging device. The charging device comprises a housing, a circuit board and at least one retractable wire module. The circuit board is arranged in the housing, and the circuit board comprises a main circuit board and at least one adapter board. The adapter board is arranged along a side edge of the main circuit board, and the main surface of the adapter board and the main surface of the main circuit board intersect with each other. The retractable wire module comprises retractable wires arranged along a preset winding axis. The winding axis points to the main circuit board. The projection of the retractable wire module in the direction perpendicular to the winding axis at least partially overlaps with the adapter board. The retractable wires are electrically connected to the main circuit board via the adapter board respectively. In this way, the volume of the charging device can be reduced.

Description

Technical Field

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

[0002] With the development of productivity and the continuous improvement of people's requirements for quality of life, we use more and more electronic devices in our lives. Electronic devices include computers, mobile phones, and tablets. All kinds of electronic devices have charging needs. In related technologies, single charging cables can no longer meet various charging needs well, and composite charging devices take up a lot of space. Utility Model Content

[0003] Embodiments of this application provide a charging device that can reduce the size of the charging device.

[0004] This application provides a charging device. The charging device includes a housing, a circuit board, and at least one retractable cable module. The circuit board is disposed within the housing and includes a main circuit board and at least one adapter plate. The adapter plate is disposed along one edge of the main circuit board, and the main surface of the adapter plate intersects with the main surface of the main circuit board. The retractable cable module includes a retractable cable wound along a preset winding axis pointing towards the main circuit board. The projection of the retractable cable module in a direction perpendicular to the winding axis at least partially overlaps with the adapter plate. The retractable cable is electrically connected to the main circuit board via the adapter plate.

[0005] Optionally, there are two adapter plates and two telescopic cable modules. The two adapter plates are disposed on the same side of the two telescopic cable modules and are respectively connected to the telescopic cable connection of a corresponding one of the two telescopic cable modules via ribbon cables.

[0006] Optionally, the charging device further includes an input interface disposed on the main circuit board, and the two adapter boards are disposed at intervals on both sides of the input interface.

[0007] Optionally, the two telescopic cable modules have the same structure, and each telescopic cable module further includes a carrier member. The telescopic cable is supported on the corresponding carrier member. The carrier member includes a first main sidewall and a second main sidewall spaced apart along the winding axis. An opening is provided on the first main sidewall. The first main sidewall of one of the two carrier members faces the main circuit board, and the first main sidewall of the other of the two carrier members faces away from the main circuit board. The ribbon cables connected to the two adapter plates are electrically connected to the telescopic cable through the openings of the corresponding telescopic cable modules.

[0008] Optionally, the electrical connection points between the two adapter plates and their respective ribbon cables are both located on the side of the two carriers away from the main circuit board, and the ribbon cable corresponding to one of the two adapter plates extends in a bent manner to the side of the first main sidewall of the carrier corresponding to the adapter plate away from the second main sidewall.

[0009] Optionally, the two adapter boards have the same structure and are assembled on the main circuit board, and the two adapter boards are mirror-symmetrical along a preset second symmetry plane.

[0010] Optionally, the circuit board further includes an output control board connected to the main circuit board. The output control board is disposed on one side edge of the main circuit board, and the output control board and the adapter board are disposed on two opposite edges of the main circuit board.

[0011] Optionally, the spacing direction of the two adapter plates is parallel to the extension direction of the output control plate, and the telescopic cable module is disposed between the output control plate and the adapter plate.

[0012] Optionally, the spacing direction of the two telescopic cable modules is parallel to the spacing direction of the two adapter plates, the winding axis is perpendicular to the main surface of the main circuit board, and the sides of the two telescopic cable modules with joints face away from each other.

[0013] Optionally, the charging device further includes a power cord for connecting the input interface to a power source, and the charging device further includes a power converter disposed on the main circuit board and corresponding to the input interface.

[0014] The beneficial effects of this application are as follows: Unlike the prior art, by setting an adapter plate connected to the main circuit board, the adapter plate can be easily connected to the retractable cable module via a ribbon cable. Furthermore, by setting the projection of the retractable cable module in the direction perpendicular to the winding axis to at least partially overlap with the adapter plate, the adapter plate can share the same thickness as the retractable cable module in the winding axis direction. This facilitates the connection between the circuit board and the retractable cable module while reducing the space occupied by the adapter plate, thereby helping to reduce the size of the charging device. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of an embodiment of the charging device of this application;

[0016] Figure 2 yes Figure 1 A schematic diagram of the open structure of the charging device bracket assembly shown.

[0017] Figure 3 yes Figure 1The diagram shows the exploded structure of the charging device.

[0018] Figure 4 yes Figure 3 A schematic diagram showing the relative positional relationship between the two telescopic line modules;

[0019] Figure 5 This is a schematic diagram of the mating structure of the telescopic cable module and the circuit board in the charging device of this application;

[0020] Figure 6 yes Figure 5 A schematic diagram of the circuit board. Detailed Implementation

[0021] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0022] Combination Figures 1 to 3 This application provides a charging device 1. The charging device 1 includes a housing 10, a circuit board 30, and at least one retractable cable module 20. The housing 10 forms a space for accommodating the circuit board 30 and the retractable cable module 20, and provides mechanical support for them. The housing 10 also shapes the appearance of the charging device 1. The circuit board 30 can transform and convert current, and manage the input and output of current. The retractable cable in the retractable cable module 20 can be extended by pulling when the user takes it out, facilitating insertion and removal. The retractable cable module 20 can also automatically retract after being removed by the user.

[0023] Further integration Figure 5 and Figure 6 In some embodiments, the charging device 1 further includes an input component. The input component may include an input interface 33 and a power converter. The input component can be connected to a power source to power the circuit board 30 and the retractable cable module 20. The power converter can convert alternating current to direct current, thereby facilitating the supply of a suitable standard current to the electronic equipment.

[0024] In some embodiments, the charging device 1 further includes a power cord for connecting the input interface 33 to a power source. The power cord can be a power adapter, capable of connecting to mains power and transforming the current before inputting it to the circuit board 30 via the input interface 33. The circuit board 30 manages and distributes the input current to charge the electronic device. Alternatively, the power cord can be a wire directly connected to mains power, with the transformation process implemented using an adapter within the circuit board 30.

[0025] In some embodiments, the charging device 1 further includes an energy storage component, which is installed within the housing 10 and electrically connected to the circuit board 30. In other words, the charging device 1 can power the electronic device without being connected to a power cord. The energy storage component can be charged via the aforementioned power cord and input component.

[0026] Combination Figures 3 to 5 In some embodiments, each retractable cable module 20 includes a carrier 21 and a retractable cable wound along a preset winding axis and supported on the carrier 21. The carrier 21 is assembled within the housing 10. The winding structure of the retractable cable module 20 can automatically retract the retractable cable, reducing cable clutter, and its length adjustment function adapts to the charging distance requirements of different electronic devices. The assembly of the carrier 21 within the housing 10 allows the retractable cable module 20 to be manufactured separately and then assembled into the housing 10, which helps reduce the manufacturing cost of the charging device 1. The assembly of the carrier 21 within the housing 10 also facilitates later maintenance and replacement.

[0027] One end of the retractable cable is electrically connected to the circuit board 30, and the other end is equipped with a connector 24. Connector 24 can be a Type-C, Lightning, USB, or other standard interface. Users can extend the retractable cable through connector 24 and then plug connector 24 into the electronic device. The retractable cable allows the current managed by the circuit board 30 to be input into the electronic device through connector 24.

[0028] Combination Figure 6 In some embodiments, the circuit board 30 includes a main circuit board 31 and at least one adapter plate 32. The adapter plate 32 is disposed along one edge of the main circuit board 31, and the main surface of the adapter plate 32 intersects the main surface of the main circuit board 31. The main surface of the main circuit board 31 may refer to the upper surface of the base plate in the main circuit board 31. The main surface of the adapter plate 32 may refer to the surface of the adapter plate 32 facing the telescopic wire module 20. In other words, the thickness direction of the adapter plate 32 intersects the thickness direction of the main circuit board 31. Optionally, the thickness direction of the main circuit board 31 and the thickness direction of the adapter plate 32 are perpendicular to each other.

[0029] Combination Figure 5The retractable cable module 20 includes a retractable cable wound along a preset winding axis pointing towards the main circuit board 31. The projection of the retractable cable module 20 in the direction perpendicular to the winding axis at least partially overlaps with the adapter plate 32. The retractable cable is electrically connected to the main circuit board 31 via the adapter plate 32. By connecting the adapter plate 32 to the main circuit board 31, the adapter plate 32 can be easily connected to the retractable cable module 20 via cabling. Furthermore, by ensuring that the projection of the retractable cable module 20 in the direction perpendicular to the winding axis at least partially overlaps with the adapter plate 32, the adapter plate 32 can share the same thickness as the retractable cable module 20 in the winding axis direction. This facilitates the connection between the circuit board 30 and the retractable cable module 20 while reducing the space occupied by the adapter plate 32, thereby reducing the size of the charging device 1. In other words, the main circuit board 31 and the adapter plate 32 can enclose a space for accommodating the retractable cable module 20, which improves space utilization and facilitates cabling.

[0030] In some embodiments, the input interface 33 is disposed on the main circuit board 31. The main circuit board 31 is provided with, for example, a power converter or a current management circuit. The input interface 33 is connected to the main circuit board 31 to input current into the main circuit board 31, and the main circuit board 31 can input current into each adapter board 32 or the output control board 34 described later.

[0031] Combination Figure 5 and Figure 6 In some embodiments, the charging device 1 includes two retractable cable modules 20. The connectors 24 of the two retractable cable modules 20 are exposed on opposite sides of the housing 10. The retractable cable modules 20 can store the retractable cable, and the user can extend it to the required length to charge the electronic device. By exposing the connectors 24 of the two retractable cable modules 20 on opposite sides of the housing 10, a charging device 1 can have two relatively independent connectors 24, allowing the user to use different retractable cables from opposite sides of the housing 10 to charge the electronic device as needed. By providing two retractable cable modules 20 located on opposite sides of the housing 10, charging needs in different directions can be met simultaneously, avoiding the limitations of traditional single-sided connectors 24. This improves the convenience of charging.

[0032] In some embodiments, there are two adapter plates 32 and two telescopic cable modules 20. The two adapter plates 32 are electrically connected to the telescopic cable connections of corresponding ones of the two telescopic cable modules 20 via ribbon cables. In this way, the telescopic cable modules 20 and the adapter plates 32 can be matched, and their connection can be made through simple ribbon cable routing, reducing the complexity of wiring within the housing 10 and reducing the space required for wiring.

[0033] Furthermore, two adapter boards 32 are positioned on the same side of the two telescopic cable modules 20, with the two adapter boards 32 spaced apart on both sides of the input interface 33. In other words, the two adapter boards 32 are positioned on the same edge of the main circuit board 31. This arrangement makes the circuit connection more direct. The routing paths between electronic components are shorter, reducing the possibility of line crossings. Furthermore, the power distribution lines starting from the input interface 33 can be easily connected to the two adapter boards 32, avoiding complex routing and multiple connection points, which helps reduce electromagnetic interference and improve circuit signal integrity. This layout also frees up other sides of the main circuit board 31, thus facilitating further circuit expansion.

[0034] Furthermore, the two adapter boards 32 have identical structures and are assembled onto the main circuit board 31, with the two adapter boards 32 being mirror-symmetrical along a preset second plane of symmetry. This identical structure and mirror-symmetrical arrangement allows the adapter boards 32 to utilize the same molds and processes during production, thus reducing production costs. The mirror-symmetrical arrangement of the adapter boards 32 simplifies the assembly process, making it more intuitive and improving assembly speed and accuracy. The mirror-symmetrical adapter boards 32 also ensure electrical consistency during current flow from the input interface 33, circuit board 30, to the adapter boards 32. This electrical consistency simplifies the design of the circuit board 30.

[0035] Combination Figure 5 In some embodiments, the electrical connections between the two adapter boards 32 and their respective ribbon cables are located on the side of the two carriers 21 facing away from the main circuit board 31. In this way, the space in the direction perpendicular to the main surface of the main circuit board 31 can be fully utilized, giving the adapter board 32 sufficient space to arrange its required electronic components. Furthermore, since the adapter board 32 and the telescopic cable module 20 share a certain space in the direction perpendicular to the main surface of the main circuit board 31, the adapter board 32 formed in the above manner can achieve sufficient arrangement of electronic components without occupying more space.

[0036] Combination Figure 3In some embodiments, the charging device 1 further includes two locking members 40, which are respectively disposed on opposite sides of the housing 10 and used to lock the connector 24 of one of the two retractable cable modules 20. The locking members 40 are structural components for fixing the connector 24 and can be made of elastic material using a snap-fit ​​structure or a magnetic adsorption structure. By providing locking members 40 on opposite sides, the positions of the connectors 24 of the two retractable cable modules 20 can be fixed respectively, reducing displacement or detachment of the connectors 24 during storage. In the locked state, the free ends of the two connectors 24 point to the same side of the housing 10. "The free ends of the connectors 24 pointing to the same side" means that when the two connectors 24 are locked, their ends both face the same direction of the housing 10, for example, both facing the front end face of the housing 10. When the retractable cable module 20 retracts, the free ends of the connectors 24 maintain a uniform orientation under the constraint of the locking members 40, reducing cable tangling or interference. The locking element 40 can be disposed in the recessed area of ​​the side wall of the housing 10, so that the connector 24 faces the extension direction of the surface of the housing 10. The uniform orientation design of the free ends of the connectors 24 makes the cable arrangement neater, reduces space occupation, and improves the convenience of operation. When the user takes out the connector 24 from either side, there is no need to deliberately distinguish its usage direction. The uniform orientation of the connectors 24 makes it easy for the user to quickly identify and plug and unplug them, improving the efficiency of use.

[0037] In some embodiments, the two locking members 40 have the same structure and are respectively assembled on opposite sides of the housing 10, and are mirror-symmetrical along a preset first plane of symmetry. The locking members 40 can be located on opposite sides outside the housing 10, or they can be located on opposite sides inside the housing 10 and exposed through notches; no specific limitation is made here. By setting locking members 40 with the same structure and mirror-distributing them along the plane of symmetry, it is possible to ensure that the forces on both sides are symmetrical and uniform, thereby improving the overall structural stability. The mirror-symmetrical design simplifies the assembly process and reduces installation errors. Locking members 40 with the same structure can reduce the types of parts and lower production costs. Optionally, the first plane of symmetry and the second plane of symmetry can be the same plane.

[0038] In some embodiments, the two retractable cable modules 20 have the same structure and are rotationally symmetrical about a preset rotation axis. Retractable cable modules 20 with the same structure can be manufactured using a uniform process, reducing manufacturing costs and maintenance difficulty. The symmetrical layout also optimizes space utilization, making the overall structure of the charging device 1 more compact. In other words, although the two retractable cable modules 20 disposed within the housing 10 need to face different directions, they can be achieved using the same retractable cable module 20. In this way, only one type of retractable cable module 20 needs to be manufactured, and by assembling the retractable cable modules 20 in different directions during assembly, the connector 24 can be positioned on opposite sides of the housing 10.

[0039] Combination Figure 4In some embodiments, the carrier 21 includes a first main sidewall 211 and a second main sidewall 212 spaced apart along the winding axis, and a peripheral sidewall 213 connecting the first main sidewall 211 and the second main sidewall 212. A telescopic cable is wound between the first main sidewall 211 and the second main sidewall 212. The first main sidewall 211, the second main sidewall 212, and the peripheral sidewall 213 can enclose a space to accommodate the telescopic cable. The peripheral sidewall 213 has a lead-out side, and a connector 24 is located on the lead-out side opposite to the carrier 21. The peripheral sidewall 213 may have an outlet for the telescopic cable to pass through. The outlet can be located on the lead-out side or on other sides of the peripheral sidewall 213; no specific limitation is made here, but the connector 24 is located on the lead-out side when retracted. Furthermore, the lead-out sides of the two carriers 21 face opposite directions; in other words, the sides of the two telescopic cable modules 20 with the connector 24 face away from each other. Furthermore, the first main sidewalls 211 and the second main sidewalls 212 of the two support members 21 are inverted relative to each other. In other words, the first main sidewalls 211 of the two support members 21 face opposite directions, and the second main sidewalls 212 of the two support members 21 face opposite directions. In this way, the two identical telescopic cable modules 20 can be inverted relative to each other so that the connectors 24 face opposite directions, thereby allowing each side of the housing 10 to have a connector 24. In this way, the two identical telescopic cable modules 20 can be assembled with different orientations, which helps to reduce the manufacturing cost of the charging device 1.

[0040] In some embodiments, each retractable cable module 20 includes a connector 25 also disposed on the carrier 21, the connector 25 being electrically connected to the retractable cable. The connector 25 enables the connection between the circuit board 30 and the retractable cable module 20. One end of the connector 25 may be provided with a terminal for connection to a ribbon cable, and the other end of the connector 25 may be provided with an annular contact piece for abutting against the terminal of the retractable cable, thereby achieving a stable electrical connection with the connector 25 when the retractable cable is in motion. Further, the first main sidewall 211 is provided with an opening, through which the terminal of the connector 25 is exposed. Two adapter plates 32 are respectively connected to one of the corresponding connectors 25 via ribbon cables, thereby achieving the electrical connection between the circuit board 30 and the retractable cable module 20.

[0041] Combination Figure 5 and Figure 6In some embodiments, the electrical connection points between the two adapter plates 32 and their respective ribbon cables are all located on the side of the first main sidewall 211 of one of the two carriers 21 that faces away from the second main sidewall 212. The ribbon cable corresponding to one of the two adapter plates 32 extends in a bent manner to the side of the first main sidewall 211 of the carrier 21 corresponding to that adapter plate 32 that faces away from the second main sidewall 212. In other words, in one telescopic cable module 20, the opening of the connector 25 terminal exposed by the carrier 21 faces away from the main circuit board 31, and in the other telescopic cable module 20, the opening of the connector 25 terminal exposed by the carrier 21 faces towards the main circuit board 31. The electrical connection points between the two adapter plates 32 and their respective ribbon cables are all located on the side of the two carriers 21 that faces away from the main circuit board 31. In this case, the telescopic cable module 20 with the opening on the carrier 21 facing away from the main circuit board 31 can be directly connected to the adapter plate 32 via the ribbon cable. The ribbon cable corresponding to the other retractable cable module 20 can be led out from the adapter plate 32, then extended in a bent manner between the retractable cable module 20 and the main circuit board 31, and then connected to the connector 25. This method reduces cross-interference in circuit layout and optimizes space utilization. The bent extension of the ribbon cable can adapt to different installation requirements, allowing the two retractable cable modules 20, even when installed upside down, to still be connected to the circuit board 30 via direct connection or bent connection. This connection method, achieved by changing the cable routing, is simple, easy to implement, and low in cost.

[0042] Combination Figure 3 In some embodiments, the housing 10 includes two spaced-apart main housing walls 11. The winding axes of the two telescopic cable modules 20 point towards the main housing walls 11. The two main housing walls 11 are perpendicular to the winding axes, and the winding axes of the two telescopic cable modules 20 are parallel. The space formed by the two main housing walls 11 can accommodate the circuit board 30 and the telescopic cable modules 20. In this way, the two main housing walls 11 can be spaced apart in the thickness direction to accommodate the thickness direction of the telescopic cable modules 20, and the size of the housing 10 can be made consistent with the size of the telescopic cable modules 20, thereby saving internal space of the housing 10 and making the component arrangement more compact. In addition, the telescopic cable modules 20 can also extend their connectors 24 from the side of the housing 10, making it convenient for users to remove the connectors 24 from the side of the charging device 1 for charging, which helps to improve usage efficiency.

[0043] In some embodiments, the circuit board 30 further includes an output control board 34 connected to the main circuit board 31. The output control board 34 is disposed on one side edge of the main circuit board 31, and the output control board 34 and the adapter board 32 are disposed on two opposite edges of the main circuit board 31. The output control board 34 may be a control board with multiple interfaces, or it may be a screen that can output relevant information during the charging process. In other words, the output control board 34 can output current or information. The output control board 34 and the adapter board 32 are spaced apart, allowing them to independently occupy space on opposite sides of the main circuit board 31, thus reducing mutual interference between the two boards.

[0044] Combination Figure 5 and Figure 6 In some embodiments, the spacing direction of the two adapter plates 32 is parallel to the extension direction of the output control plate 34, and the telescopic cable module 20 is disposed between the output control plate 34 and the adapter plates 32. Optionally, the winding axis is perpendicular to the main surface of the main circuit board 31. In this way, the main circuit board 31, the adapter plates 32, and the output control plate 34 can form an accommodating space for the telescopic cable module 20. The main circuit board 31 requires a large area. By setting the main circuit board 31 perpendicular to the winding axis, the main circuit board 31 can correspond to the larger first main sidewall 211 and second main sidewall 212 of the telescopic cable module 20, so that the projections of the main circuit board 31 and the telescopic cable module 20 in the direction of the winding axis can partially overlap, realizing the sharing of part of the space. The adapter plate 32 and the output plate require a small area and can be positioned on opposite sides of the telescopic cable module 20, corresponding to the peripheral sidewall 213 of the telescopic cable module 20. This allows the adapter plate 32 and the output control plate 34 to share space in the thickness direction with the telescopic cable module 20. This method improves the space utilization of the charging device 1.

[0045] Furthermore, the spacing direction of the two telescopic cable modules 20 is parallel to the spacing direction of the two adapter plates 32. In this way, the positions of the two adapter plates 32 correspond to the positions of the two telescopic cable modules 20, thereby reducing the possibility of mutual crossing of the cables during the wiring process and facilitating the connection of the telescopic cable modules 20 and the adapter plates 32.

[0046] Combination Figures 1 to 3In some embodiments, the charging device 1 further includes a support assembly 50, which is mounted outside the housing 10. The support assembly 50 includes a support 51 and a connector 52, one end of which is rotatably connected to the housing 10, and the other end is rotatably connected to the support 51. By providing the support 51, the charging device 1 can function as a support for electronic devices. By providing the connector 52 to be rotatably connected to the support 51 and the housing 10, the support 51 can be folded in or unfolded by rotation. Optionally, the housing 10 is provided with a receiving groove, in which the support 51 is received after being folded in.

[0047] In some embodiments, a wireless charging module is provided within the bracket 51, and the wireless charging module is electrically connected to the circuit board 30 via a connector 52. Conductive components or wiring may be provided within the connector 52 to electrically connect the circuit board 30 to the wireless charging module. The wireless charging module enables the bracket assembly 50 to support electronic devices while simultaneously charging electronic devices with wireless charging capabilities, thus providing multiple different charging methods and further facilitating user charging of electronic devices.

[0048] The above are merely embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A charging device, characterized in that, include: shell; A circuit board is disposed within the housing and includes a main circuit board and at least one adapter board. The adapter board is disposed along one edge of the main circuit board, and the main surface of the adapter board intersects with the main surface of the main circuit board. At least one telescopic cable module includes a telescopic cable wound along a preset winding axis pointing towards the main circuit board. The projection of the telescopic cable module in a direction perpendicular to the winding axis at least partially overlaps with the adapter plate. The telescopic cable is electrically connected to the main circuit board via the adapter plate.

2. The charging device according to claim 1, characterized in that: The number of adapter plates and telescopic cable modules are two each. The two adapter plates are disposed on the same side of the two telescopic cable modules and are respectively connected to the telescopic cable connection of the corresponding one of the two telescopic cable modules through ribbon cables.

3. The charging device according to claim 2, characterized in that: The charging device also includes an input interface disposed on the main circuit board, and the two adapter boards are disposed at intervals on both sides of the input interface.

4. The charging device according to claim 2, characterized in that: The two telescopic cable modules have the same structure, and each telescopic cable module further includes a carrier. The telescopic cable is supported on the corresponding carrier. The carrier includes a first main sidewall and a second main sidewall spaced apart along the winding axis. An opening is provided on the first main sidewall. The first main sidewall of one of the two carriers faces the main circuit board, and the first main sidewall of the other carrier faces away from the main circuit board. The ribbon cables connected to the two adapter plates are electrically connected to the telescopic cable through the openings of the corresponding telescopic cable modules.

5. The charging device according to claim 4, characterized in that: The electrical connection points between the two adapter plates and their respective ribbon cables are both located on the side of the two carriers away from the main circuit board. The ribbon cable corresponding to one of the two adapter plates extends in a bent manner to the side of the first main sidewall of the carrier corresponding to the adapter plate away from the second main sidewall.

6. The charging device according to claim 5, characterized in that: The two adapter boards have the same structure and are assembled on the main circuit board. The two adapter boards are mirror-symmetrical along a preset second symmetry plane.

7. The charging device according to claim 2, characterized in that: The circuit board also includes an output control board connected to the main circuit board. The output control board is disposed on one side edge of the main circuit board, and the output control board and the adapter board are disposed on two opposite edges of the main circuit board.

8. The charging device according to claim 7, characterized in that: The spacing direction of the two adapter plates is parallel to the extension direction of the output control plate, and the telescopic cable module is disposed between the output control plate and the adapter plate.

9. The charging device according to claim 8, characterized in that: The spacing direction of the two telescopic cable modules is parallel to the spacing direction of the two adapter plates, the winding axis is perpendicular to the main surface of the main circuit board, and the sides of the two telescopic cable modules with joints face away from each other.

10. The charging device according to claim 3, characterized in that: The charging device also includes a power cord for connecting the input interface to a power source, and the charging device also includes a power converter disposed on the main circuit board and corresponding to the input interface.

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