Data cable device and charging device

Abstract

Embodiments of the present application disclose a data cable device and a charging device. The data cable device comprises: a first winding member; a second winding member rotatably connected to the first winding member; a first cable, configured to be wound around the first winding member; a second cable, configured to be wound around the second winding member; and an elastic member, separately connected to the first winding member and the second winding member, wherein the elastic member is configured to provide a first restoring torque to the first winding member so as to retract the first cable; and / or the elastic member is configured to provide a second restoring torque to the second winding member so as to retract the second cable.

Description

Data cable device and charging device

[0001] This application claims priority to Chinese Patent Application No. 202520754128.0, filed on April 18, 2025, entitled "A Charging Device," the entirety of which is incorporated herein by reference. This application also claims priority to Chinese Patent Application No. 202520746126.7, filed on April 18, 2025, entitled "An Ultra-Thin Multi-Layer Cable Winder," the entirety of which is incorporated herein by reference. Finally, this application claims priority to Chinese Patent Application No. 202521399673.9, filed on July 4, 2025, entitled "A Charger," the entirety of which is incorporated herein by reference. This application claims priority to Chinese Patent Application No. 202620283161.4, filed on March 9, 2026, entitled "A Small-Volume Charger," the entirety of which is incorporated herein by reference. This application also claims priority to Chinese Patent Application No. 202620282965.2, filed on March 9, 2026, entitled "A Charger with Facilitated Heat Dissipation," the entirety of which is incorporated herein by reference. Finally, this application claims priority to Chinese Patent Application No. 202620282706.X, filed on March 9, 2026, entitled "A Multi-Extendable Cable Charger," the entirety of which is incorporated herein by reference. This application claims priority to Chinese Patent Application No. 202510832433.1, filed on June 20, 2025, entitled "A Data Cable Device," the entirety of which is incorporated herein by reference. This application also claims priority to Chinese Patent Application No. 202521280775.9, filed on June 20, 2025, entitled "A Data Cable Device," the entirety of which is incorporated herein by reference. [Technical Field]

[0002] This application relates to the field of data cable device technology, and in particular to a data cable device and a charging device. [Background Technology]

[0003] Data cable devices are commonly used electronic devices. In related technologies, data cable structures include a shell structure, a rotating structure, and a cable structure; the rotating structure enables the extension and retraction of the cable, making the data cable structure relatively complex. [Summary of the Invention]

[0004] This application provides a data cable device, comprising: an elastic element; a first winding element; a second winding element rotatably connected to the first winding element; a first cable for winding around the first winding element; and a second cable for winding around the second winding element. The elastic element is connected to both the first and second winding elements to provide a first rotational force to the first winding element to retract the first cable, and / or to provide a second rotational force to the second winding element to retract the second cable. Alternatively, the elastic element is connected to the first winding element to provide a first rotational force to retract the first cable; or, the elastic element is connected to the second winding element to provide a second rotational force to retract the second cable.

[0005] This application provides a charging device, including the data cable device as described above. [Attached Image Description]

[0006] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments 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 from these drawings without creative effort.

[0007] Figure 1 is a schematic diagram of an optional structure of the data cable device provided in an embodiment of this application;

[0008] Figure 2 is a cross-sectional view AA of Figure 1;

[0009] Figure 3 is a schematic diagram of Figure 1 from another perspective;

[0010] Figure 4 is a schematic diagram of an optional partial structure of Figure 3;

[0011] Figure 5 is a schematic diagram of Figure 4 from another perspective;

[0012] Figure 6 is a partial structural schematic diagram of Figure 4;

[0013] Figure 7 is a schematic diagram of another part of the structure in Figure 4;

[0014] Figure 8 is an exploded view of an optional structure in Figure 1;

[0015] Figure 9 is a schematic diagram of another optional partial structure of Figure 3;

[0016] Figure 10 is a schematic diagram of Figure 9 from another perspective;

[0017] Figure 11 is a partial structural schematic diagram of Figure 9;

[0018] Figure 12 is an exploded view of another alternative structure in Figure 1;

[0019] Figure 13 is a schematic diagram of an optional structure of the elastic element provided in an embodiment of this application;

[0020] Figure 14 is a schematic diagram of another optional structure of the elastic element provided in the embodiment of this application;

[0021] Figure 15 is a schematic diagram of the structure of a charging device according to an embodiment of this application;

[0022] Figure 16 is a schematic diagram of the structure of the charging connector storage part in the charging device of Figure 15;

[0023] Figure 17 is an assembly diagram of the storage section in Figure 16;

[0024] Figure 18 is another assembly diagram of the storage part in Figure 16;

[0025] Figure 19 is a schematic diagram of the plug part in the charging device of Figure 15;

[0026] Figure 20 is a schematic diagram of the wheel core for storing wires in the charging device of Figure 15;

[0027] Figure 21 is a schematic diagram of the telescopic control mechanism used to control the rotation of the wheel core in Figure 20;

[0028] Figure 22 is a structural schematic diagram of an ultra-thin multilayer wire winder provided in an embodiment of this application;

[0029] Figure 23 is a schematic diagram of the explosion in Figure 22;

[0030] Figure 24 is a schematic diagram of the mounting base in Figure 22;

[0031] Figure 25 is a schematic diagram from another perspective of Figure 24;

[0032] Figure 26 is a schematic diagram of the winding assembly in Figure 22;

[0033] Figure 27 is a cross-sectional view of section AA in Figure 26;

[0034] Figure 28 is a schematic diagram of the wheel core in Figure 22;

[0035] Figure 29 is a schematic diagram from another perspective of Figure 28;

[0036] Figure 30 is a cross-sectional view of section BB in Figure 29;

[0037] Figure 31 is an exploded view of the charger provided in this application;

[0038] Figure 32 is a perspective view of the charger provided in this application;

[0039] Figure 33 is an exploded view of the retractable cable module in the charger provided in this application;

[0040] Figure 34 is a perspective view of one side of the charger provided in this application after removing the outer casing;

[0041] Figure 35 is a perspective view of the charger provided in this application after the outer casing has been removed;

[0042] Figure 36 is a front view of Figure 34;

[0043] Figure 37 is a front view of Figure 35;

[0044] Figure 38 is a perspective view of the conversion component in the charger provided in this application;

[0045] Figure 39 is a front view of the conversion component in the charger provided in this application;

[0046] Figure 40 is an exploded view of one side of the charger provided in this application after removing the outer casing;

[0047] Figure 41 is a partial exploded view of another side of the charger provided in this application after the outer casing has been removed;

[0048] Figure 42 is a cross-sectional schematic diagram of the charger provided in this application;

[0049] Figure 43 is a cross-sectional view of the charger in Figure 42.

[0050] Figure 44 is a front view of the charger provided in this application with the outer casing removed;

[0051] Figure 45 is another front view of the charger provided in this application without its outer casing;

[0052] Figure 46 is another front view of the charger provided in this application without its outer casing.

Detailed Implementation Methods

[0053] The technical solution of this application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0054] In the embodiments described in this application, it should be noted that, unless otherwise stated and limited, the term "connection" should be interpreted broadly. For example, it can be an electrical connection, or it can be a connection between two internal components. It can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above term according to the specific circumstances.

[0055] In the description of this application, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are 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.

[0056] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation, connection, and linking" should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral connection; it can refer to a mechanical connection or an electrical connection; it can refer to a direct connection or an indirect connection through an intermediate medium; it can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0057] It should also be further understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0058] This application provides a data cable device, comprising: a first winding member; a second winding member rotatably connected to the first winding member; a first cable wound around the first winding member; a second cable wound around the second winding member; an elastic member connected to both the first and second winding members; the elastic member providing a first rotational force to the first winding member to retract the first cable; and / or, the elastic member providing a second rotational force to the second winding member to retract the second cable.

[0059] In some embodiments, one end of the elastic member is connected to the first winding member, and the other end of the elastic member is connected to the second winding member; the elastic member is spirally wound.

[0060] In some embodiments, the directions of the first rotational force and the second rotational force are different, and the retraction direction of the first cable and the second cable are different; the winding direction of each segment of the elastic element is the same. In some embodiments, the directions of the first rotational force and the second rotational force are the same, and the retraction direction of the first cable and the second cable is the same; the elastic element includes: a folded region; the portion of the elastic element located between one end of the elastic element and the folded region is wound in a first direction, and the portion of the elastic element located between the other end of the elastic element and the folded region is wound in a second direction; wherein the first direction and the second direction are opposite. In some embodiments, the elastic element is wound in a disc shape, with the outer end of the elastic element connected to the first winding member, and the inner end of the elastic element connected to the second winding member. In some embodiments, the first end of the first cable and the first end of the second cable are electrically connected. In some embodiments, the device further includes: a first adapter, disposed at one end of the first winding member facing the second winding member and electrically connected to the first cable; a second adapter, disposed at one end of the second winding member facing the first winding member and electrically connected to the second cable; one of the first adapter and the second adapter is provided with an annular conductive groove, and the other of the first adapter and the second adapter is provided with a conductive protrusion, the conductive protrusion being inserted into the annular conductive groove and capable of sliding within the annular conductive groove.

[0061] In some embodiments, the device further includes: a housing having a receiving cavity and a first opening and a second opening communicating with the receiving cavity; a first winding member rotatably disposed within the housing; a second winding member rotatably disposed within the housing and axially spaced from the first winding member; a second end of a first cable passing through the first opening and located outside the housing; and a second end of a second cable passing through the second opening and located outside the housing.

[0062] In some embodiments, the device further includes: a housing having a receiving cavity and a first opening, a second opening, a third opening, and a fourth opening communicating with the receiving cavity; a first winding member rotatably disposed within the housing; a second winding member rotatably disposed within the housing and axially spaced from the first winding member; a second end of a first cable passing through the first opening and located outside the housing, and a first end of the first cable passing through the third opening and located outside the housing; a second end of a second cable passing through the second opening and located outside the housing, and a first end of the second cable passing through the fourth opening and located outside the housing.

[0063] In some embodiments, the device further includes: a housing; a connecting shaft rotatably connected to the housing; a first winding member rotatably connected to the connecting shaft; a second winding member fixedly connected to the connecting shaft; the first winding member and the second winding member are coaxially arranged; and an elastic member is connected to the first winding member and the connecting shaft respectively.

[0064] In some embodiments, a mounting groove is formed at one end of the first winding member facing away from the second winding member; the elastic element is disposed in the mounting groove.

[0065] In some embodiments, the device further includes: a first positioning member disposed at the opening of the mounting groove; and a first limiting member movably disposed in the housing and cooperating with the first positioning member to limit the rotational position of the first winding member. In some embodiments, the first winding member has a first through hole; the data cable device further includes: a first positioning member disposed at the end of the first winding member opposite to the second winding member; the first positioning member has a second through hole; the first limiting member is disposed in the housing and cooperating with the first positioning member to limit the rotational position of the first winding member; a second positioning member is disposed at the end of the second winding member opposite to the first winding member; the second positioning member has a third through hole; the second limiting member is movably disposed in the housing and cooperating with the second positioning member to limit the rotational position of the second winding member; one end of the connecting shaft passes through the first through hole and the second through hole and is rotatably connected to the housing; the other end of the connecting shaft passes through the third through hole and is rotatably connected to the housing. In some embodiments, the device further includes: a first adapter, disposed at one end of the first winding member facing the second winding member and electrically connected to the first cable; a second adapter, disposed at one end of the second winding member facing the first winding member and electrically connected to the second cable; the second adapter and the first adapter are electrically connected. In some embodiments, the first adapter is an annular structure, and the second adapter is an annular structure; the first winding member forms a first cylindrical portion on the periphery of the first through hole, and the first cylindrical portion passes through a first through hole defined by the first adapter; one end of the connecting shaft passes through a second through hole defined by the second adapter; the end face of the first cylindrical portion contacts the second adapter, and the first winding member is axially confined between the second adapter and the housing.

[0066] In some embodiments, the portion of the first winding member facing the second winding member is recessed to form a receiving groove; at least a portion of the first adapter is located within the receiving groove; the first adapter is provided with a conductive protrusion, and the second adapter is provided with an annular conductive groove; the conductive protrusion protrudes from the receiving groove and is inserted into the annular conductive groove.

[0067] In some embodiments, the device further includes: a housing; a second positioning member disposed at one end of the second winding member opposite to the first winding member; and a second limiting member movably disposed in the housing and cooperating with the second positioning member to limit the rotational position of the second winding member.

[0068] This application provides a data cable device, including: a first winding member; a second winding member rotatably connected to the first winding member; a first cable for winding around the first winding member; a second cable for winding around the second winding member; and an elastic member; one end of the elastic member is connected to the first winding member, and the other end of the elastic member is connected to the second winding member. In some embodiments, the retraction direction of the first cable and the retraction direction of the second cable are different, and the stretching direction of the first cable and the stretching direction of the second cable are different; the winding direction of each segment of the elastic member is the same. In some embodiments, the retraction direction of the first cable and the retraction direction of the second cable are the same, and the stretching direction of the first cable and the stretching direction of the second cable are the same; the elastic member includes: a folded-back region; the portion of the elastic member located between one end of the elastic member and the folded-back region is wound in a first direction, and the portion of the elastic member located between the other end of the elastic member and the folded-back region is wound in a second direction; wherein the first direction and the second direction are opposite. In some embodiments, the second positioning member has a second inner annular slide, a second outer annular slide, a second sliding in channel, a second sliding out channel, and a second slot on the end face opposite to the second winding member; the second inner annular slide and the second outer annular slide are radially spaced apart from each other on the second winding member; the second sliding in channel communicates with the second inner annular slide and the second outer annular slide respectively; the second sliding out channel communicates with the second inner annular slide and the second outer annular slide respectively; the second slot is located at the second sliding in channel; the second limiting member is rotatably disposed on the housing, and the second limiting member has a second limiting post, which is used to cooperate with the second slot to limit the rotational position of the second winding member.

[0069] In some embodiments, the device further includes: a first interface component connected to a second end of a first cable; and a second interface component connected to a second end of a second cable; the first interface component and the second interface component may have the same or different interface types. In some embodiments, the device further includes: a housing, the outer side of which is provided with a first storage slot and a second storage slot, the first storage slot for storing the first interface component and the second storage slot for storing the second interface component; and / or, the data cable device further includes: a first suction member and a second suction member disposed on the housing; the first suction member is used to connect to the first interface component, and the second suction member is used to connect to the second interface component.

[0070] This application provides a charging device, including a main body and at least two charging connectors. The main body has a storage slot for accommodating at least two charging connectors. The charging connectors in the storage slot are arranged side by side. A fixing component is provided at the bottom of the storage slot for fixing the charging connectors.

[0071] In some embodiments, the fixing component includes a first magnetic member, the number of which corresponds to the number of charging connectors; and / or, the charging connector has a second magnetic member corresponding to the first magnetic member, the first magnetic member and the second magnetic member cooperating to fix the charging connector.

[0072] In some embodiments, the main body includes a side cover and a side shell, the side shell being used to form the bottom of a storage groove, the side cover having a first opening and an annular wall arranged along the edge of the first opening, the annular wall cooperating with the side shell to form a storage groove, and a wire inlet / outlet being provided at the junction of the annular wall and the side shell.

[0073] In some embodiments, a mounting groove is provided on the side of the side shell facing away from the storage groove, the mounting groove being used to install a fixing component; and / or, the side cover is provided with a second opening, the second opening being used to form a charging output interface.

[0074] In some embodiments, one side of the side shell is provided with a side insertion portion that inserts into the annular wall, and the other side of the side shell is provided with a mounting ear. The mounting ear is provided with a mounting hole, which accommodates a screw connected to the annular wall. The space around the mounting ear is used to form a wire inlet / outlet; and / or, a plug-in structure is provided between the side shell and the annular wall for insertion along the vertical direction of the receiving groove.

[0075] In some embodiments, the body has a plug, the plug and the receiving slot are located on opposite sides of the body, the plug includes rotatable prongs, the prongs are located at the corners of the outer contour of the body.

[0076] In some embodiments, the main body includes a housing and a cover, which cooperate to form a mounting cavity for mounting components of the charging device. The edge of the housing has a mounting notch, which cooperates with the cover to mount a plug. And / or, the plug includes a base, a decorative cover, and a pivot located between the base and the decorative cover. The base is located inside the main body, the decorative cover is exposed to the outside of the main body, the pins are connected to the end of the pivot, the radial outer surface of the pivot is provided with a conductive part for connecting the pins, and the base is provided with a conductive spring for abutting the conductive part.

[0077] In some embodiments, the charging device includes a wire connected to a charging connector, a reel for winding the wire, a coil spring for rotating the reel to wind the wire, and an inner housing assembly for housing the wire, the reel, and the coil spring.

[0078] In some embodiments, the wheel core is axially provided with a telescopic control mechanism for controlling the extension and retraction of the conductor. The telescopic control mechanism includes a balance wheel rotatably connected to the inner shell assembly, an eccentric column disposed on the balance wheel and a mounting track disposed on the wheel core, the eccentric column moving along the mounting track to achieve a fixed length extension and continuous retraction of the conductor.

[0079] In some embodiments, the kit includes an inner arc-shaped track and an outer arc-shaped track for sliding the eccentric column, the inner arc-shaped track and the outer arc-shaped track being fitted together on the end face of the wheel core; a control post is provided between the start and end points of the inner arc-shaped track and the outer arc-shaped track, a guide cone is provided on one side of the control post, the guide cone is used to guide the eccentric column into the outer arc-shaped track or the inner arc-shaped track, the guide cone is used to enable the wheel core to rotate continuously, and a limiting recess is provided on the other side of the control post, the limiting recess is used to keep the wheel core stationary to control the length of the wire pulled out.

[0080] In some embodiments, a coil spring mounting port is provided on the other end face of the wheel core.

[0081] In some embodiments, the end face of the wheel core is provided with an energizing component for energizing the wires; the energizing component includes a plurality of conductive rails and a plurality of conductive contacts for abutting against the plurality of conductive rails, the conductive rails and the plurality of conductive contacts are arranged in a ring around the rotation center of the wheel core, one of the conductive rails and the conductive contacts is disposed in the wheel core, and the other of the conductive rails and the conductive contacts is disposed in the inner shell assembly.

[0082] In some embodiments, the power-conducting component includes a follower circuit board disposed on the wheel core and a fixed circuit board disposed on the inner shell assembly. The follower circuit board is used to set one of the conductive rail and the conductive contact, and the fixed circuit board is used to set the other of the conductive rail and the conductive contact. And / or, the conductive contacts include a plurality of contact groups arranged in a ring around the rotation center of the wheel core. The contact groups include a ground pin, two data communication pins, a channel configuration pin, and a power supply pin.

[0083] This application provides an ultra-thin multi-layer cable winder, comprising: a housing assembly including a first housing portion and a second housing portion arranged along a third direction; a mounting base disposed between the first housing portion and the second housing portion in a third direction, the mounting base enclosing a first space with the first housing portion along a first side in the third direction, and the mounting base enclosing a second space with the second housing portion along a second side in the third direction; at least two cable winding assemblies, at least one cable winding assembly being housed in the first space, and at least one cable winding assembly being housed in the second space; the cable winding assembly includes a reel and a data cable, the reel being rotatable relative to the housing assembly and used for winding the data cable, one end of the data cable extending out of the housing assembly.

[0084] In some embodiments, the mounting base includes a base plate, a first side plate, and a second side plate. The first side plate is disposed along the edge of the base plate and extends toward a first side in a third direction, and the second side plate is disposed along the edge of the base plate and extends toward a second side in a third direction. The first side plate is connected to the first shell portion in a third direction, and the second side plate is connected to the second shell portion in a third direction.

[0085] In some embodiments, the mounting base is an integral structure.

[0086] In some embodiments, the mounting base includes a base plate and mounting shafts disposed on both sides of the base plate, with the wheel core sleeved on the outer periphery of the mounting shaft and rotating around the mounting shaft.

[0087] In some embodiments, the wheel core includes a wheel drum with a locking port on the side wall of the drum. The data cable includes a first end and a second end, the first end extending out of the housing and the second end extending through the locking port into the interior of the wheel drum and fixed to the wheel drum.

[0088] In some embodiments, the wheel core includes a wire clamping plate located inside the wheel drum, and the wire clamping plate and the drum sidewall are arranged radially spaced to form a wire clamping groove, wherein the second end of the data cable is located in the wire clamping groove.

[0089] In some embodiments, the clamping plate is in the shape of an arc concentric with the reel drum in a plane perpendicular to the axial direction of the reel drum.

[0090] In some embodiments, the wheel core includes a wheel drum, and the winding assembly includes a coil spring disposed within the wheel drum for providing a restoring force for the wheel drum to rotate in the direction of retracting the data cable.

[0091] In some embodiments, the mounting base includes a mounting shaft, a wheel drum is sleeved on the mounting shaft, one end of a coil spring is connected to the wheel drum, and the other end of the coil spring is connected to the mounting shaft.

[0092] In some embodiments, the first housing portion has a first cable outlet communicating with a first space; the second housing portion has a second cable outlet communicating with a second space; the ultra-thin multilayer cable reel includes a flexible protective element, and the edges of the first cable outlet and / or the edges of the second cable outlet are provided with flexible protective elements.

[0093] This application provides a multi-retractable cable charger, including a housing, which defines a first receiving cavity. A retractable cable module is disposed within the first receiving cavity. The housing has an opening communicating with the first receiving cavity. The retractable cable module includes: a first cable group, including a first winding assembly, a first winding spool, and a first cable, the first cable being wound onto the first winding spool under the processing of the first winding assembly; and a second cable group, including a second winding assembly, a second winding spool, and a second cable, the second cable being wound onto the second winding spool under the processing of the second winding assembly; wherein the first cable is used to extend out of the housing from the opening in a fourth direction, and the second cable is used to extend out of the housing from the opening in a fourth direction.

[0094] In some embodiments, the housing includes a first bottom wall and a second bottom wall disposed opposite to each other, and a retractable cable module is disposed in the receiving space formed by the first bottom wall and the second bottom wall; the multi-retractable cable charger further includes a conversion component for processing the input first voltage into a second voltage, wherein: the conversion component is connected to a first wire group via a first wire group, the first wire group being disposed between the first bottom wall and the retractable cable module; the conversion component is connected to a second wire group via a second wire group, the second wire group being disposed between the second bottom wall and the retractable cable module; the first wire group and the second wire group each have an output connector for outputting the second voltage.

[0095] In some embodiments, the outer casing includes a first bottom wall and a second bottom wall disposed opposite to each other, the first wire group further includes a first shell, the first shell and the first bottom wall forming a first inner cavity, and the first winding assembly and the first winding reel are disposed in the first inner cavity; the second wire group further includes a second shell, the second shell and the second bottom wall forming a second inner cavity, and the second winding assembly and the second winding reel are disposed in the first inner cavity.

[0096] In some embodiments, the multi-retractable cable charger further includes a conversion component for processing an input first voltage into a second voltage, wherein the conversion component is connected to a first wire group via a first wire group and to a second wire group via a second wire group, and the first wire group and the second wire group are disposed between a first housing and a second housing.

[0097] In some embodiments, the first wire group includes a first output connector, and the second wire group includes a second output connector; a storage groove is provided on the housing, and the storage groove communicates with the first receiving cavity through an opening, and the first output connector and the second output connector are stored in the storage groove.

[0098] In some embodiments, the first output connector is housed in a receiving slot. Along the length direction of the first output connector, the projection of the first output connector is located within the projection of the housing. Along the width direction of the first output connector, the projection of the first output connector is located within the projection of the housing.

[0099] In some embodiments, the first output connector is housed in a receiving slot. Along the length direction of the first output connector, the projection of the first output connector at least partially extends beyond the projection of the housing. Along the width direction of the first output connector, the projection of the first output connector at least partially extends beyond the projection of the housing. Along the thickness direction of the first output connector, the projection of the first output connector is located within the projection of the housing.

[0100] This application provides a small-volume charger, comprising: a housing defining a first receiving cavity; a conversion component disposed within the first receiving cavity, the conversion component being used to process an input first voltage into a second voltage; and a retractable cord module disposed within the first receiving cavity, the retractable cord module being electrically connected to the conversion component and being used to output the second voltage converted by the conversion component; wherein the conversion component at least partially encloses the retractable cord module.

[0101] In some embodiments, the conversion component includes a motherboard, which includes a first arm and at least one second arm, the first arm and the second arm forming an enclosing space for enclosing the telescopic cable module.

[0102] In some embodiments, the conversion component further includes a first sub-board and a transformer element: the first sub-board is inserted into the main board, a first side of the first sub-board is connected to the transformer element, and a second side of the first sub-board is close to the side wall of the housing; the first side and the second side of the first sub-board are opposite sides.

[0103] In some embodiments, the outer casing includes a first inner wall and a second inner wall, wherein: the first inner wall and the second inner wall are connected, the conversion component is arranged in an L-shape along the first inner wall and the second inner wall in the first receiving cavity; the outlet of the telescopic cable module is away from the first inner wall and the second inner wall.

[0104] In some embodiments, the outer shell includes a first inner wall, a second inner wall, and a third inner wall; wherein: the third inner wall and the first inner wall are disposed opposite to each other, and the second inner wall is connected to the first inner wall and the third inner wall respectively; the conversion component is arranged in a U-shape along the first inner wall, the second inner wall, and the third inner wall in the first receiving cavity, and the outlet of the telescopic cable module is away from the first inner wall, the second inner wall, and the third inner wall.

[0105] In some embodiments, the motherboard includes a first arm and at least one second arm, the first arm and the second arm forming an enclosing space for enclosing a telescopic wire module.

[0106] In some embodiments, the conversion component further includes: a first daughter board, which is inserted into the main board, a first side of the first daughter board is connected to the transformer element, and a second side of the first daughter board is close to the side wall of the housing; the first side and the second side of the first daughter board are opposite sides.

[0107] In some embodiments, the conversion component further includes: a second daughter board, which is inserted into the main board; the second daughter board is provided with an inductor; the second daughter board is connected to one output terminal of the telescopic cable module through a first wire group, and the second daughter board is connected to the other output terminal of the telescopic cable module through a second wire group.

[0108] In some embodiments, the system further includes an input component for connecting to a power supply to input a first voltage; the conversion component further includes a third sub-board, wherein: the third sub-board is inserted into the main board; the third sub-board is connected to the input component and the transformer element respectively; an inductor element is disposed on a first surface of the third sub-board, and a second surface of the third sub-board is close to the side wall of the housing; the first surface and the second surface of the third sub-board are two opposing surfaces.

[0109] In some embodiments, the motherboard includes a first region, a second region, and a third region, wherein a transformer element and a second sub-board are disposed in the first region; a third sub-board is disposed in the second region; and a capacitor element is disposed in the third region.

[0110] In some embodiments, a first region is located on a first arm, a second region is located on a second arm, and a third region is located at the corner where the first arm and the second arm connect.

[0111] This application provides a charger with convenient heat dissipation, comprising: a housing, the housing defining a first receiving cavity, the first receiving cavity being divided into a heat dissipation cavity and a heat generation cavity, the heat generation cavity being used to house at least electronic components that generate heat, the heat dissipation cavity being used to house at least mechanical components, and the heat generation cavity at least partially enclosing the heat dissipation cavity; a conversion component disposed in the heat generation cavity, the conversion component being used to process an input first voltage into a second voltage; and an output component disposed in the heat dissipation cavity, the output component being electrically connected to the conversion component, and being used to output the second voltage output by the conversion component to the terminal device being charged.

[0112] In some embodiments, the projected area of ​​the conversion component along the fourth direction is smaller than the projected area of ​​the output component along the fourth direction; the projected area of ​​the conversion component along the fifth direction is larger than the projected area of ​​the output component along the fifth direction; wherein the fourth direction is perpendicular to the fifth direction.

[0113] In some embodiments, the charger for easy heat dissipation further includes: a heat dissipation component, a first part of which is disposed in the heating cavity and abuts against the conversion component; and a second part of which is disposed in the heat dissipation cavity, wherein the heat dissipation component is at least used to conduct heat from the heating cavity to the heat dissipation cavity.

[0114] In some embodiments, the output component includes: a telescopic cable module, the telescopic cable module including a first housing, a second housing, and a cable winding assembly, the first housing and the second housing defining a second receiving cavity, the cable winding assembly being disposed within the second receiving cavity; the heat dissipation component includes: a first heat dissipation element, a first portion of the first heat dissipation element being disposed in the heating cavity and abutting against the conversion component, a second portion of the first heat dissipation element being disposed in the heat dissipation cavity and abutting against the first housing; a second heat dissipation element, a first portion of the second heat dissipation element being disposed in the heating cavity and abutting against the conversion component, a second portion of the second heat dissipation element being disposed in the heat dissipation cavity and abutting against the second housing.

[0115] In some embodiments, the winding assembly includes a first wire group and a second wire group, with a partition plate between the first wire group and the second wire group, the partition plate dividing the second receiving cavity into a first sub-cavity for receiving the first wire group and a second sub-cavity for receiving the second wire group.

[0116] In some embodiments, the heat dissipation component further includes a third heat dissipation element disposed in the heating cavity and located between the first heat dissipation element and the second heat dissipation element.

[0117] In some embodiments, the conversion component includes: a motherboard disposed inside the first housing, with a first side of the motherboard abutting against a first heat sink; a transformer element disposed on a second side of the motherboard, with one end of the transformer element abutting against a second heat sink; the first side and the second side of the motherboard are opposite sides.

[0118] In some embodiments, the conversion component further includes: a first daughter board, which is inserted into the main board, a first side of the first daughter board is connected to a transformer element, and a second side of the first daughter board abuts against a third heat sink; the first side and the second side of the first daughter board are opposite sides.

[0119] In some embodiments, the conversion component further includes: a second daughter board, which is inserted into the motherboard; the second daughter board is provided with an inductor element and is located between the first heat sink and the second heat sink; the second daughter board is connected to the output component through a first wire group to transmit a second voltage; the first wire group abuts against at least one of the first heat sink or the second heat sink.

[0120] In some embodiments, the system further includes an input component for connecting to a power supply to input a first voltage; the conversion component further includes a third sub-board, and the heat dissipation component further includes a fourth heat dissipation element, wherein: the third sub-board is inserted into the main board; the third sub-board is connected to the input component and the transformer element respectively; an inductor element is provided on the first surface of the third sub-board, and the fourth heat dissipation element abuts against the second surface of the third sub-board; the first surface and the second surface of the third sub-board are two opposing surfaces.

[0121] In some embodiments, the first heat sink, the second heat sink, the third heat sink, and the fourth heat sink are graphene heat sinks or metal heat sinks, respectively.

[0122] In some embodiments, the first heat sink is a metal heat sink, and the second, third and fourth heat sinks are graphene heat sinks.

[0123] In some embodiments, the graphene heat sink includes a thermally conductive silicone pad and a graphene aluminum foil sheet attached to the outside of the thermally conductive silicone pad; the metal heat sink includes an insulating sheet and a heat-dissipating copper sheet attached to the outside of the insulating sheet.

[0124] This application provides a multi-retractable cable charger, including a housing, the housing defining a first receiving cavity, a retractable cable module disposed within the first receiving cavity, and an opening communicating with the first receiving cavity. The retractable cable module includes: a first cable group, including a first winding assembly, a first winding spool, and a first cable, the first cable being wound onto the first winding spool under the processing of the first winding assembly; and a second cable group, including a second winding assembly, a second winding spool, and a second cable, the second cable being wound onto the second winding spool under the processing of the second winding assembly; wherein the first cable is extended from the opening into the housing in a fourth direction, and the second cable is extended from the opening into the housing in a fourth direction.

[0125] In some embodiments, the housing includes a first bottom wall and a second bottom wall disposed opposite to each other, and a retractable cable module is disposed in the receiving space formed by the first bottom wall and the second bottom wall; the multi-retractable cable charger further includes a conversion component, wherein: the conversion component is connected to a first wire group via a first wire group, the first wire group being disposed between the first bottom wall and the retractable cable module; the conversion component is connected to a second wire group via a second wire group, the second wire group being disposed between the second bottom wall and the retractable cable module; the first wire group and the second wire group each have an output connector, the output connector being used to output voltage.

[0126] In some embodiments, the output connector types of the first wire group and the second wire group are different.

[0127] In some embodiments, the multi-retractable cable charger further includes a transformer, wherein the transformer is connected to a first wire group via a first wire group and to a second wire group via a second wire group, and the first wire group and the second wire group are disposed between a first housing and a second housing.

[0128] In some embodiments, the first output connector and the second output connector extend to the same length within the receiving groove; the first output connector and the second output connector are completely received within the receiving groove, and the ends of the first output connector and the second output connector have a first gap relative to the inner wall of the receiving groove, the first gap being greater than or equal to 1 mm and less than or equal to 5 mm.

[0129] In some embodiments, the first output connector and the second output connector are arranged adjacent to each other, and the distance between the first output connector and the second output connector is greater than or equal to 1 mm and less than or equal to 6 mm.

[0130] In some embodiments, a partition is provided between the first output connector and the second output connector, and the partition is connected to the storage slot, or the partition and the storage slot are integrated.

[0131] In some embodiments, a storage slot is provided on a first side of the housing, and a power plug for connecting to a power source is provided on a second side of the housing; the first side and the second side are two opposite sides of the housing.

[0132] In some embodiments, the extension directions of the first output connector and the second output connector are perpendicular to the extension direction of the power plug, respectively.

[0133] In some embodiments, the first side of the housing is further provided with an output socket, the extension direction of which is perpendicular to the extension directions of the first output connector and the second output connector, respectively.

[0134] In some embodiments, the output port is located in the storage slot, and the storage slot and the output port are integrated with the housing.

[0135] In some embodiments, the first output connector and / or the second output connector portion protrudes from the slot of the receiving groove, such that the first output connector and / or the second output connector portion protrudes from the housing.

[0136] In some embodiments, the thickness of the first output connector and / or the second output connector is less than the depth of the receiving groove, so that the first output connector and / or the second output connector are received in the receiving groove.

[0137] In some embodiments, the transformer at least partially encloses the telescopic wire module.

[0138] In some embodiments, the first receiving cavity is divided into a heat dissipation cavity and a heat generation cavity. The heat generation cavity is used to place electronic components that generate heat, and the heat dissipation cavity is used to place mechanical components. The heat generation cavity at least partially encloses the heat dissipation cavity, and the conversion component is disposed in the heat generation cavity.

[0139] This application provides a charger with convenient heat dissipation, including: a housing, the housing defining a first receiving cavity, the first receiving cavity having a conversion component and an output component; the conversion component includes a transformer element; the output component is electrically connected to the transformer element for supplying power to an electronic device being charged; the projected area of ​​the conversion component along a fourth direction is smaller than the projected area of ​​the output component along the fourth direction; the projected area of ​​the conversion component along a fifth direction is larger than the projected area of ​​the output component along the fifth direction; wherein, the fourth direction and the fifth direction are perpendicular.

[0140] In some embodiments, the charger for easy heat dissipation further includes a heat dissipation component, and the first receiving cavity includes a heating cavity and a heat dissipation cavity; wherein, a first part of the heat dissipation component is disposed in the heating cavity and abuts against the conversion component; a second part of the heat dissipation component is disposed in the heat dissipation cavity, and the heat dissipation component is at least used to conduct heat in the heating cavity to the heat dissipation cavity.

[0141] In some embodiments, the heat dissipation component includes: a first heat dissipation component, a first portion of which is disposed in the heating cavity and abuts against the conversion component, and a second portion of which is disposed in the heat dissipation cavity and abuts against the first housing; and a second heat dissipation component, a first portion of which is disposed in the heating cavity and abuts against the conversion component, and a second portion of which is disposed in the heat dissipation cavity and abuts against the second housing.

[0142] In some embodiments, the space enclosed by the second receiving cavity is a heat dissipation cavity, and the space within the first receiving cavity other than the second receiving cavity is a heat generation cavity.

[0143] In some embodiments, the conversion component further includes: a second sub-board, which is inserted into the main board; the second sub-board is provided with an inductor, and the second sub-board is located between the first heat sink and the second heat sink; the second sub-board is connected to the output component through a first wire group; the first wire group abuts against at least one of the first heat sink or the second heat sink.

[0144] In some embodiments, the system further includes an input component for connecting to a power source; the conversion component further includes a third sub-board, and the heat dissipation component further includes a fourth heat dissipation element, wherein: the third sub-board is inserted into the main board; the third sub-board is connected to the input component and the transformer component respectively; an inductor is provided on the first surface of the third sub-board, and the fourth heat dissipation element abuts against the second surface of the third sub-board; the first surface and the second surface of the third sub-board are two opposing surfaces.

[0145] This application provides a small-volume charger, comprising: a housing defining a first receiving cavity; a transformer module disposed within the first receiving cavity, the transformer module including a transformer; and a retractable cord module disposed within the first receiving cavity, the retractable cord module being electrically connected to the transformer module for outputting the voltage of the transformer; wherein the transformer module at least partially encloses the retractable cord module.

[0146] In some embodiments, the outer casing includes a first inner wall and a second inner wall, wherein: the first inner wall and the second inner wall are connected, the transformer module is arranged in an L-shape along the first inner wall and the second inner wall in the first receiving cavity; the outlet of the telescopic cable module is away from the first inner wall and the second inner wall.

[0147] In some embodiments, the outer casing includes a first inner wall, a second inner wall, and a third inner wall; wherein: the third inner wall and the first inner wall are disposed opposite to each other, and the second inner wall is connected to the first inner wall and the third inner wall respectively; the transformer module is arranged in a U-shape along the first inner wall, the second inner wall, and the third inner wall in the first receiving cavity, and the outlet of the telescopic cable module is away from the first inner wall, the second inner wall, and the third inner wall.

[0148] In some embodiments, the transformer module includes a main board, which includes a first arm and at least one second arm, the first arm and the second arm forming an enclosing space for enclosing the telescopic wire module.

[0149] In some embodiments, the transformer module further includes: a first sub-board, the first sub-board being inserted into the main board, a first side of the first sub-board being connected to the transformer, and a second side of the first sub-board being close to the side wall of the housing; the first side and the second side of the first sub-board are opposite sides.

[0150] In some embodiments, the transformer module further includes: a second sub-board, which is inserted into the main board; the second sub-board is provided with an inductor; the second sub-board is connected to one output terminal of the telescopic cable module through a first wire group, and the second sub-board is connected to the other output terminal of the telescopic cable module through a second wire group.

[0151] In some embodiments, the transformer module further includes an input component for connection to a power supply; the transformer module further includes a third sub-board, wherein: the third sub-board is inserted into the main board; the third sub-board is connected to the input component and the transformer respectively; an inductor is provided on a first surface of the third sub-board, and a second surface of the third sub-board is close to the side wall of the housing; the first surface and the second surface of the third sub-board are two opposing surfaces.

[0152] In some embodiments, the motherboard includes a first region, a second region, and a third region, wherein a transformer and a second sub-board are disposed in the first region; a third sub-board is disposed in the second region; and a capacitor element is disposed in the third region.

[0153] In some embodiments, the telescopic cable module includes a first housing, a second housing, and a cable winding assembly, the first housing and the second housing defining a second receiving cavity, the cable winding assembly being disposed within the second receiving cavity.

[0154] The data line device described in the embodiments of this application will be described in detail below with reference to Figures 1 to 14.

[0155] In embodiments of this application, the data cable device includes a first winding member 200, a second winding member 300, a first cable 410, a second cable 420, and an elastic member 530. The second winding member 300 is rotatably connected to the first winding member 200; the first cable 410 is wound around the first winding member 200; the second cable 420 is wound around the second winding member 300; the elastic member 530 is connected to both the first winding member 200 and the second winding member 300; the elastic member 530 provides a first rotational force to the first winding member 200 to retract the first cable 410; and / or, the elastic member 530 provides a second rotational force to the second winding member 300 to retract the second cable 420.

[0156] In related technologies, data cable structures include a shell structure, a rotating structure, and a cable structure. The rotating structure is used to stretch and retract the cable, and it typically provides rotational force through a separate structure, making the data cable structure relatively complex. However, in the data cable device of this application, the elastic element 530 provides a first rotational force to the first winding member 200 to retract the first cable 410; and / or, the elastic element 530 provides a second rotational force to the second winding member 300 to retract the second cable 420. Thus, the elastic element 530 can provide both a first rotational force to the first winding member 200 and a second rotational force to the second cable 420, greatly simplifying the structure of the data cable device.

[0157] In this embodiment, the positions where the elastic member 530 is connected to the second winding member 300 and the first winding member 200 are not limited. For example, the ends of the elastic member 530 can be connected to the second winding member 300 and the first winding member 200 respectively. Alternatively, the non-ends of the elastic member 530 can also be connected to the second winding member 300 and the first winding member 200 respectively.

[0158] This application also describes a data cable device comprising: a first winding member 200, a second winding member 300, a first cable 410, a second cable 420, and an elastic member 530. The second winding member 300 is rotatably connected to the first winding member 200; the first cable 410 is wound around the first winding member 200; the second cable 420 is wound around the second winding member 300. One end of the elastic member 530 is connected to the first winding member 200, and the other end of the elastic member 530 is connected to the second winding member 300.

[0159] In related technologies, data cable structures include a shell structure, a rotating structure, and a cable structure. The rotating structure is used to stretch and retract the cable, and it typically provides rotational force through a separate structure, making the data cable structure relatively complex. However, in the data cable device of this application, one end of the elastic element 530 is connected to the first winding element 200, and the other end is connected to the second winding element 300. Thus, the elastic element 530 can provide both a first rotational force to the first winding element 200 and a second rotational force to the second cable 420, greatly simplifying the structure of the data cable device. Simultaneously, connecting the ends of the elastic element 530 to both the second winding element 300 and the first winding element 200 reduces the length and installation space required for the elastic element 530, achieving miniaturization of the data cable device.

[0160] In the embodiments of this application, the structure of the first winding member 200 is not limited. For example, in some embodiments, the first winding member 200 can be a columnar structure. In other embodiments, the first winding member 200 can be a ring-shaped structure.

[0161] In the embodiments of this application, the structure of the second winding member 300 is not limited. For example, in some embodiments, the second winding member 300 can be a columnar structure. In other embodiments, the second winding member 300 can be a ring-shaped structure.

[0162] The method by which the second winding member 300 is rotatably connected to the first winding member 200 is not limited. For example, the second winding member 300 and the first winding member 200 can be rotatably connected through a shaft structure, hinge structure, pin structure, universal joint structure, etc.

[0163] As shown in Figures 4 and 9, the first cable 410 is used to be wound around the first winding member 200. A portion of the first cable 410 can be wound outside the first winding member 200 to achieve the storage and organization of the first cable 410. The first cable 410 wound outside the first winding member 200 can also be unwound from the first winding member 200 to achieve the adjustment of the length of the first cable 410.

[0164] The second cable 420 is used to be wound around the second winding member 300. A portion of the second cable 420 can be wound outside the second winding member 300 to achieve the storage and organization of the second cable 420. The second cable 420 wound outside the second winding member 300 can also be unwound from the second winding member 300 to achieve the adjustment of the length of the second cable 420.

[0165] In the embodiments of this application, the structure of the elastic element 530 is not limited. For example, in some embodiments, the elastic element 530 can be a coil spring, a torsion spring, etc. As an example, the elastic element 530 can be a helical torsion spring, a clockwork spring, a constant force spring, etc.

[0166] The elastic element 530 and the first winding element 200 can be fixedly connected by means of snap-fitting, bonding, welding, etc. The elastic element 530 and the second winding element 300 can be fixedly connected by means of snap-fitting, bonding, welding, etc.

[0167] The elastic element 530 can be used to provide a first rotational force to the first winding member 200 only to retrieve the first cable 410. The elastic element 530 can be used to provide a second rotational force to the second winding member 300 only to retrieve the second cable 420. Of course, the elastic element 530 can be used to provide both the first rotational force to the first winding member 200 to retrieve the first cable 410 and the second rotational force to the second winding member 300 to retrieve the second cable 420.

[0168] The shape of the elastic element is not limited. For example, the elastic element can be cylindrical. Here, the overall height of the elastic element is greater than the height of a single coil of the elastic element, thus allowing the radial dimension of the elastic element to be smaller. Alternatively, the elastic element can also be disc-shaped. Here, the overall height of the elastic element is approximately equal to the height of a single coil of the elastic element, thus allowing the height dimension of the elastic element to be smaller.

[0169] As an example, as shown in Figures 8 and 12, the elastic element can be coiled in a disc shape. The outer end of the elastic element can be connected to the first winding element by means of bonding, snapping, welding, etc., and the inner end of the elastic element can be connected to the second winding element by means of bonding, snapping, welding, etc. When the first cable 410 is pulled, the first cable 410 pulls the outer end of the elastic element through the first winding element, thereby storing energy in the elastic element to provide a first rotational force to the first winding element 200 to retract the first cable 410. When the second cable 420 is pulled, the second cable 420 pulls the inner end of the elastic element through the second winding element, thereby storing energy in the elastic element to provide a second rotational force to the second winding element 300 to retract the second cable 420.

[0170] Of course, in other examples, the outer end of the elastic element can also be connected to the second winding element by means of bonding, snapping, welding, etc., and the inner end of the elastic element can be connected to the first winding element by means of bonding, snapping, welding, etc.

[0171] The directions of the first rotational force and the second rotational force can be the same or different.

[0172] The stretching direction of the first cable 410 and the stretching direction of the second cable 420 can be different.

[0173] In some optional implementations of this application, one end of the elastic member 530 can be connected to the first winding member 200 by means of bonding, snap-fitting, welding, etc., and the other end of the elastic member 530 can be connected to the second winding member 300 by means of bonding, snap-fitting, welding, etc. The elastic member is spirally wound. The connection between the first winding member 200 and the second winding member 300 and the end of the elastic member 530 can reduce the size of the elastic member 530 and achieve lightweighting of the data cable device.

[0174] Of course, in other implementations, the first winding member 200 may not be connected to the end of the elastic member; for example, the first winding member 200 may be connected to the middle of the elastic member. The second winding member 300 may also not be connected to the end of the elastic member; for example, the second winding member 300 may be connected to the middle of the elastic member.

[0175] In this implementation, the directions of the first rotational force and the second rotational force can be the same or different.

[0176] In this implementation, the retrieval direction of the first cable and the retrieval direction of the second cable can be the same or different.

[0177] In this implementation, the stretching direction of the first cable 410 and the stretching direction of the second cable 420 can be different.

[0178] For example, as shown in Figures 9, 10, 11 and 12, the retrieval direction of the first cable and the retrieval direction of the second cable can also be different.

[0179] In this example, the stretching direction of the first cable 410 and the stretching direction of the second cable 420 can be different, so that the operator can pull the first cable and the second cable with both hands respectively, thereby increasing the length of the first cable and the second cable.

[0180] In this example, the directions of the first rotational force and the second rotational force can be different.

[0181] In this example, the winding direction of each segment of the elastic element 530 can be the same, so that both the first cable and the second cable can share each segment of the elastic element 530. Of course, in other examples, the winding direction of each segment of the elastic element 530 can be different. As an example, as shown in FIG14, the elastic element 530 may include a connecting region 532. The portion of the elastic element 530 located between one end of the elastic element 530 and the connecting region 532 is wound in a first direction, and the portion of the elastic element 530 located between the other end of the elastic element 530 and the connecting region 532 can also be wound in the first direction. The connecting region 532 is wound in a second direction, such that the portion of the elastic element 530 located between one end of the elastic element 530 and the connecting region 532 mainly provides a first rotational force, and the portion of the elastic element 530 located between the other end of the elastic element 530 and the connecting region 532 mainly provides a second rotational force.

[0182] For example, as shown in Figures 4, 5, 6, 7 and 8, the direction of retraction of the first cable can be the same as the direction of retraction of the first cable.

[0183] In this example, the stretching direction of the first cable 410 is the same as that of the second cable 420, so that the operator can pull the first cable and the second cable simultaneously with one hand, thereby increasing the length of the first cable and the second cable.

[0184] In this example, the directions of the first rotational force and the second rotational force can be the same.

[0185] In this example, as shown in FIG13, the elastic member 530 may include a folded region 531. The portion of the elastic member 530 located between one end of the elastic member 530 and the folded region 531 is coiled in a first direction, and the portion of the elastic member 530 located between the other end of the elastic member 530 and the folded region 531 is coiled in a second direction; wherein the first direction and the second direction are opposite; thereby, the elastic member 530 can provide a rotational force in the same direction.

[0186] When the first cable 410 is pulled, the first winding member 200 stores energy in the portion of the elastic member 530 located between one end of the elastic member 530 and the reverse folding region 531 through one end of the elastic member 530; here, the portion of the elastic member 530 located between the other end of the elastic member 530 and the reverse folding region 531 can remain stationary based on the rotational damping force of the second winding member 300. When the second cable 420 is pulled, the second winding member 300 stores energy in the portion of the elastic member 530 located between the other end of the elastic member 530 and the reverse folding region 531 through the other end of the elastic member 530; here, the portion of the elastic member 530 located between one end of the elastic member 530 and the reverse folding region 531 can remain stationary based on the rotational damping force of the first winding member 200. When the first cable 410 and the second cable 420 are pulled simultaneously, the portion of the elastic element 530 located between one end of the elastic element 530 and the reverse bending area 531, and the portion of the elastic element 530 located between the other end of the elastic element 530 and the reverse bending area 531, respectively store energy and provide rotational force.

[0187] Here, the stiffness of the folding region 531 can be greater than the stiffness of other regions of the elastic member 530, so that the portion of the elastic member 530 located between one end of the elastic member 530 and the folding region 531 and the portion of the elastic member 530 located between the other end of the elastic member 530 and the folding region 531 can independently store energy and provide rotational force.

[0188] The method by which the stiffness of the folded region 531 is greater than that of other regions of the elastic member 530 is not limited. For example, the thickness of the folded region 531 can be greater than the thickness of other regions of the elastic member 530. As another example, the elastic member may also include a reinforcing part, which can be connected to the folded region 531 by means of bonding, welding, etc., to improve the stiffness of the folded region 531.

[0189] Here, the method of forming the elastic element 530 is not limited. For example, the elastic element 530 can be formed by connecting two springs wound in the same direction through welding, bonding, or other methods to form an integral structure. As another example, the elastic element 530 can also be formed by specially winding a single spring, in which the spring is wound in the opposite direction after a certain number of turns, thereby forming the elastic element 530.

[0190] Here, the thickness of the portion of the elastic member 530 located between one end of the elastic member 530 and the folded area 531 and the portion of the elastic member 530 located between the other end of the elastic member 530 and the folded area 531 can be the same or different.

[0191] In some optional implementations of the embodiments of this application, the first end of the first cable 410 and the first end of the second cable 420 can be electrically connected so that the first cable 410 and the second cable 420 can be used as a whole cable.

[0192] In this implementation, the first end of the first cable 410 and the first end of the second cable 420 can be directly electrically connected via a flexible cable. The length of the flexible cable must meet the stretching requirements of both the first cable 410 and the second cable 420. During stretching, the flexible cable can be wound around the first cable 410 and the second cable 420. During retraction, the flexible cable can be unwound. Alternatively, the first end of the first cable 410 and the first end of the second cable 420 can also be electrically connected via other structures.

[0193] In this implementation, the data cable device may further include a first adapter 610 and a second adapter 620. The first adapter 610 is disposed on the end of the first winding member 200 facing the second winding member 300 and electrically connected to the first cable 410 by means of bonding, snapping, welding, etc.; the second adapter 620 is disposed on the end of the second winding member 300 facing the first winding member 200 and electrically connected to the second cable 420 by means of bonding, snapping, welding, etc.; one of the first adapter 610 and the second adapter 620 is provided with an annular conductive groove 621, and the other of the first adapter 610 and the second adapter 620 is provided with a conductive protrusion 611. The conductive protrusion 611 is inserted into the annular conductive groove 621 and can slide within the annular conductive groove 621, so that the first end of the first cable 410 and the first end of the second cable 420 can always be electrically connected through the first adapter 610 and the second adapter 620.

[0194] The structure of the first adapter 610 and the second adapter 620 is not limited. For example, the first adapter 610 and the second adapter 620 can be a circuit board structure. Conductive layers may be provided in the first adapter 610 and the second adapter 620.

[0195] The method of electrical connection between the first adapter 610 and the first cable 410 is not limited. For example, the first adapter 610 can be directly electrically connected to the first end of the first cable 410. Or, for another example, the first adapter 610 can be electrically connected to the first end of the first cable 410 via a connecting wire.

[0196] The method of electrical connection between the second adapter 620 and the second cable 420 is not limited. For example, the second adapter 620 can be directly electrically connected to the first end of the second cable 420. Or, for another example, the second adapter 620 can be electrically connected to the first end of the second cable 420 via a connecting wire.

[0197] The annular conductive groove 621 and the first winding member 200 can be coaxially arranged. The bottom wall of the annular conductive groove 621 can be provided with a conductive portion, or the side wall of the annular conductive groove 621 can be provided with a conductive portion, so that the conductive protrusion 611 remains electrically connected to the conductive portion in the annular conductive groove 621 during its sliding motion within the annular conductive groove 621. The conductive portion can be formed of conductive materials such as copper, silver, or aluminum.

[0198] The structure of the conductive protrusion 611 is not limited. For example, the conductive protrusion 611 can be an elastic structure to improve the stability of the electrical connection between the conductive protrusion 611 and the annular conductive groove 621. Here, the conductive protrusion 611 can be a conductive spring, a conductive silicone sheet, or other conductive structures.

[0199] As an example, as shown in Figures 6 and 11, a conductive protrusion 611 can be disposed on the first adapter 610, and the conductive protrusion 611 can be electrically connected to the first cable 410 through the conductive layer within the first adapter 610. As shown in Figure 7, an annular conductive groove 621 can be disposed on the second adapter 620, and the conductive portion of the annular conductive groove 621 can be electrically connected to the second cable 420 through the conductive layer within the second adapter 620. The conductive layer can be formed of conductive materials such as copper, silver, and aluminum.

[0200] In this implementation, the data cable device may further include a housing 100. The housing 100 has a receiving cavity 103 and a first opening 101 and a second opening 102 communicating with the receiving cavity 103, as shown in Figures 1 and 3. A first winding member 200 is rotatably disposed within the housing 100; a second winding member 300 is rotatably disposed within the housing 100 and axially spaced from the first winding member 200, as shown in Figure 2. The second end of the first cable 410 passes through the first opening 101 and is located outside the housing 100; the second end of the second cable 420 passes through the second opening 102 and is located outside the housing 100. Thus, the length of the cable can be adjusted by stretching the second end of the first cable 410, and the length of the cable can also be adjusted by stretching the second end of the second cable 420.

[0201] Here, the housing 100 protects the first winding member 200 and the second winding member 300; at the same time, the housing 100 also protects the first cable 410 and the second cable 420 in their stored state. Of course, in other examples, the first winding member 200 and the second winding member 300 may not be located inside the housing 100.

[0202] Here, the first winding member 200 is rotatably disposed on the housing 100, and the second winding member 300 is rotatably disposed on the housing 100. The implementation method of rotatably connecting the second winding member 300 and the first winding member 200 is not limited. For example, the data cable device may include a connecting shaft 540. The connecting shaft 540 may be fixed to the housing 100, and the first winding member 200 and the second winding member 300 may be rotatably connected to the connecting shaft 540 respectively.

[0203] Of course, in other implementations, the first end of the first cable 410 and the first end of the second cable 420 may not be electrically connected.

[0204] In some optional implementations of the embodiments of this application, the data cable device may further include a housing 100, the housing 100 having a receiving cavity 103 and a first opening 101, a second opening 102, a third opening, and a fourth opening communicating with the receiving cavity 103. A first winding member 200 is rotatably disposed within the housing 100; a second winding member 300 is rotatably disposed within the housing 100 and is axially spaced from the first winding member 200; the second end of the first cable 410 passes through the first opening 101 and is located outside the housing 100, and the first end of the first cable 410 passes through the third opening and is located outside the housing 100; the second end of the second cable 420 passes through the second opening 102 and is located outside the housing 100, and the first end of the second cable 420 passes through the fourth opening and is located outside the housing 100; thereby enabling the elastic member 530 to simultaneously provide rotational force to both the first cable 410 and the second cable 420.

[0205] The above embodiments have already described the housing 100, the first winding member 200, and the second cable 420, and will not be repeated here.

[0206] In some optional implementations of the embodiments of this application, the data cable device may further include a housing 100; a connecting shaft 540 rotatably connected to the housing 100; a first winding member 200 rotatably connected to the connecting shaft 540, and a second winding member 300 fixedly connected to the connecting shaft 540; the first winding member 200 and the second winding member 300 are coaxially arranged, and an elastic member 530 is connected to the first winding member 200 and the connecting shaft 540 respectively; thereby, the first winding member 200 and the second winding member 300 can both rotate relative to the housing 100 through the connecting shaft 540.

[0207] Of course, in other implementations, the connecting shaft 540 and the housing 100 can also be fixedly connected, and the first winding member 200 and the second winding member 300 can be rotatably connected to the connecting shaft 540 through hole structures, bearing structures, etc.

[0208] In this implementation, the first end of the first cable 410 and the first end of the second cable 420 may or may not be electrically connected.

[0209] In this implementation, the connecting shaft 540 and the housing 100 can be rotatably connected through hole structures, bearing structures, etc.

[0210] In this implementation, the first winding member 200 and the connecting shaft 540 can be rotatably connected through a hole structure, bearing structure, etc.

[0211] In this implementation, the second winding member 300 and the connecting shaft 540 can be fixedly connected by means of bonding, snap-fitting, welding, etc. Of course, the second winding member 300 and the connecting shaft 540 can also be different parts of a single structural component.

[0212] In this implementation, as shown in Figures 4 and 9, a mounting groove 201 can be formed at the end of the first winding member 200 facing away from the second winding member 300; the elastic member 530 is coiled in the mounting groove 201, as shown in Figure 2. Of course, in other examples, the elastic member 530 can also be disposed in the recessed structure of the second winding member 300.

[0213] In this implementation, the data cable device may further include a first positioning member 710 and a first limiting member 810. The first positioning member 710 may be disposed at the opening of the mounting groove 201 by means of bonding, snap-fitting, threaded connection, etc.; the first limiting member 810 may be movably disposed in the housing 100 and cooperate with the first positioning member 710 to limit the rotation position of the first winding member 200.

[0214] The first positioning member 710 can cooperate with the first limiting member 810 to limit the rotation position of the first winding member 200, and can also block the opening of the mounting groove 201 to prevent the elastic member 530 from coming out of the mounting groove 201, thereby greatly simplifying the structure of the data cable device.

[0215] The structure of the first positioning member 710 is not limited. For example, the first positioning member 710 can be a plate-like structure.

[0216] The first limiting member 810 can be movably mounted on the housing 100 via a structure such as a sliding hole, sliding groove, or sliding rail. Alternatively, the first limiting member 810 can be rotatably mounted on the housing 100 via a rotating shaft structure or a hole structure.

[0217] The way the first limiting member 810 and the first positioning member 710 cooperate is not limited. For example, the first limiting member 810 can move to cooperate with the surface or recessed area of ​​the first positioning member 710 to limit the rotational position of the first winding member 200.

[0218] Of course, in other examples, the first positioning member 710 may also be located at other positions on the first winding member 200.

[0219] As an example, as shown in Figures 4 and 9, the first positioning member 710 has a first inner annular slide 711, a first outer annular slide 712, a first sliding in channel 713, a first sliding out channel 714, and a first slot 715 on the end face opposite to the first winding member 200; the first inner annular slide 711 and the first outer annular slide 712 are radially spaced apart from each other on the first winding member 200; the first sliding in channel 713 communicates with the first inner annular slide 711 and the first outer annular slide 712 respectively; the first sliding out channel 714 communicates with the first inner annular slide 711 and the first outer annular slide 712 respectively; the first slot 715 is located at the first sliding in channel 713; the first limiting member 810 is rotatably disposed on the housing 100, and the first limiting member 810 has a first limiting post 811, which is used to cooperate with the first slot 715 to limit the rotational position of the first winding member 200.

[0220] Here, the first limiting post 811 can slide within the first inner annular slide 711, the first outer annular slide 712, the first sliding in channel 713 and the first sliding out channel 714. When the first limiting post 811 slides to engage with the first slot 715, the first winding member 200 no longer rotates, thereby enabling the first cable 410 to be at a suitable pull-out length.

[0221] During use, when the first cable 410 is stretched by external force, the first limiting post 811 slides in the first outer annular slide 712. When the first cable 410 is stretched to a suitable length, the external force is removed, and the first winding member 200 rotates in the opposite direction under the action of the elastic member 530. The first limiting post 811 enters the first slot 715 from the first sliding in channel 713, and the first winding member 200 stops rotating. When the first winding member 200 is gently pulled and released, the first limiting post 811 enters the first inner annular slide 711 from the first sliding in channel 713 and rotates in the opposite direction under the action of the elastic member 530. The first limiting post 811 slides in the first inner annular slide 711 until the first cable 410 is fully retracted. The ability of the first limiting post 811 to slide within the first inner annular slide 711, the first outer annular slide 712, the first sliding in channel 713, and the first sliding out channel 714 ensures that there is no loud noise during the stretching or retraction of the first cable 410.

[0222] In this implementation, the data cable device may further include a second positioning member 720 and a second limiting member 820. The second positioning member 720 may be disposed on the end of the second winding member 300 opposite to the first winding member 200 by means of bonding, welding, snap-fitting, etc.; the second limiting member 820 may be movably disposed on the housing 100 and cooperate with the second positioning member 720 to limit the rotational position of the second winding member 300.

[0223] The structure of the second positioning member 720 is not limited. For example, the second positioning member 720 can be a plate-like structure.

[0224] The second limiting member 820 can be movably mounted on the housing 100 via a structure such as a sliding hole, sliding groove, or sliding rail. Alternatively, the second limiting member 820 can be rotatably mounted on the housing 100 via a rotating shaft structure or a hole structure.

[0225] The way the second limiting member 820 and the second positioning member 720 cooperate is not limited. For example, the second limiting member 820 can move to cooperate with the surface or recessed area of ​​the second positioning member 720 to limit the rotational position of the second winding member 300.

[0226] Of course, in other examples, the second positioning member 720 may also be located at other positions on the second winding member 300.

[0227] As an example, as shown in Figures 5 and 10, the second positioning member 720 has a second inner annular slide 721, a second outer annular slide 722, a second sliding in channel 723, a second sliding out channel 724, and a second slot 725 on the end face opposite to the second winding member 300; the second inner annular slide 721 and the second outer annular slide 722 are radially spaced apart from each other on the second winding member 300; the second sliding in channel 723 communicates with the second inner annular slide 721 and the second outer annular slide 722 respectively; the second sliding out channel 724 communicates with the second inner annular slide 721 and the second outer annular slide 722 respectively; the second slot 725 is located at the second sliding in channel 723; the second limiting member 820 is rotatably disposed on the housing 100, and the second limiting member 820 has a second limiting post 821, which is used to cooperate with the second slot 725 to limit the rotational position of the second winding member 300.

[0228] Here, the second limiting post 821 can slide within the second inner annular slide 721, the second outer annular slide 722, the second sliding in channel 723, and the second sliding out channel 724. When the second limiting post 821 slides to engage with the second slot 725, the second winding member 300 no longer rotates, thereby enabling the second cable 420 to be at a suitable pull-out length.

[0229] During use, when the second cable 420 is stretched by external force, the second limiting post 821 slides in the second outer annular slide 722. When the second cable 420 is stretched to a suitable length, the external force is removed, and the second winding member 300 rotates in the opposite direction under the action of the elastic member 530. The second limiting post 821 enters the second slot 725 from the second sliding in channel 723, and the second winding member 300 stops rotating. When the second winding member 300 is gently pulled and released, the second limiting post 821 enters the second inner annular slide 721 from the second sliding in channel 723 and rotates in the opposite direction under the action of the elastic member 530. The second limiting post 821 slides in the second inner annular slide 721 until the second cable 420 is fully retracted. The ability of the second limiting post 821 to slide within the second inner annular slide 721, the second outer annular slide 722, the second sliding in channel 723, and the second sliding out channel 724 ensures that there is no loud noise during the stretching or retraction of the second cable 420.

[0230] In this implementation, the positional relationship between the connecting shaft 540 and the first positioning member 710 and the second positioning member 720 is not limited. For example, as shown in Figure 2, the first winding member 200 may have a first through hole 202; the first positioning member 710 may have a second through hole 716; the second positioning member 720 may have a third through hole 726; one end of the connecting shaft 540 passes through the first through hole 202 and the second through hole 716 and is rotatably connected to the housing 100; the other end of the connecting shaft 540 passes through the third through hole 726 and is rotatably connected to the housing 100. Of course, the first positioning member 710 and the second positioning member 720 may not have hole structures, and the first positioning member 710 and the second positioning member 720 may also be located on one side of the connecting shaft 540.

[0231] In this implementation, the data cable device may further include a first adapter 610 and a second adapter 620. The first adapter 610 is disposed at the end of the first winding member 200 facing the second winding member 300 and is electrically connected to the first cable 410; the second adapter 620 is disposed at the end of the second winding member 300 facing the first winding member 200 and is electrically connected to the second cable 420; the second adapter 620 and the first adapter 610 are electrically connected.

[0232] The first adapter 610 and the second adapter 620 have already been described above, and will not be repeated here.

[0233] As an example, the first adapter 610 can be an annular structure, as shown in Figures 6 and 11, and the second adapter 620 can be an annular structure, as shown in Figure 7. The first winding member 200 forms a first cylindrical portion 210 around the first through hole 202, and the first cylindrical portion 210 passes through the first through hole 612 defined by the first adapter 610. One end of the connecting shaft 540 passes through the second through hole 622 defined by the second adapter 620. The end face of the first cylindrical portion 210 contacts the second adapter 620, and the first winding member 200 is axially limited between the second adapter 620 and the housing 100, thereby achieving axial limitation of the first winding member 200. Of course, the first winding member 200 can also achieve axial limitation in other ways. For example, the first winding member 200 can be axially limited between the second winding member 300 and the housing 100; here, the first winding member 200 can contact the second winding member 300.

[0234] Here, the second winding member 300 is fixedly connected to the connecting shaft 540, and the second winding member 300 is axially defined between the two walls of the housing 100 via the connecting shaft 540. Of course, the second winding member 300 can also be rotatably connected to the connecting shaft 540. Here, the second winding member 300 can be axially defined between the first winding member 200 and the housing 100, and this application does not limit this.

[0235] In this implementation, the portion of the first winding member 200 facing the second winding member 300 can be recessed to form a receiving groove 203; at least a portion of the first adapter 610 is located within the receiving groove 203, as shown in Figures 6 and 11; the first adapter 610 is provided with a conductive protrusion 611, and the second adapter 620 is provided with an annular conductive groove 621; the conductive protrusion 611 protrudes from the receiving groove 203 and is inserted into the annular conductive groove 621 to reduce the installation space of the first adapter 610.

[0236] Of course, in other examples, the first winding member 200 may not have the receiving groove 203.

[0237] In some optional implementations of the embodiments of this application, the data cable device may further include a housing 100; a second positioning member 720; and a second limiting member 820. The second positioning member 720 is disposed at one end of the second winding member 300 opposite to the first winding member 200; the second limiting member 820 is movably disposed in the housing 100 and cooperates with the second positioning member 720 to limit the rotational position of the second winding member 300.

[0238] The second positioning member 720 and the second limiting member 820 have been described in the above embodiments, and will not be repeated here.

[0239] In some optional implementations of the embodiments of this application, the data cable device may further include a first interface 510 and a second interface 520. The first interface 510 is connected to the second end of the first cable 410; the second interface 520 is connected to the second end of the second cable 420.

[0240] In this implementation, the type of the first interface device 510 is not limited. For example, the first interface device 510 can be a Micro-USB connector, a Lightning connector, or a USB Type-C connector.

[0241] In this implementation, the type of the second interface device 520 is not limited. For example, the second interface device 520 can be a Micro USB interface, a Lightning interface, or a USB Type-C interface, etc.

[0242] The interface types of the first interface device 510 and the second interface device 520 may be the same or different.

[0243] In this implementation, the data cable device may further include a housing 100, and the outer side of the housing 100 may be provided with a first storage slot 104 and a second storage slot 105. The first storage slot 104 is used to store the first interface component 510, and the second storage slot 105 is used to store the second interface component 520.

[0244] Of course, in other implementations of this application, the outer side of the housing 100 may not have at least one of the first storage groove 104 and the second storage groove 105.

[0245] The first interface component 510 can be located in the first storage slot 104 by means of snap-fit, adhesive or other methods.

[0246] The second interface component 520 can be located in the second storage slot 105 by means of snap-fit, adhesive or other methods.

[0247] In this implementation, as shown in Figures 8 and 12, the data cable device may further include a first adsorption member 910 and a second adsorption member 920 disposed in the housing 100; the first adsorption member 910 is used to connect with the first interface member 510, and the second adsorption member 920 is used to connect with the second interface member 520.

[0248] Of course, the data cable device may also be equipped with only one of the first adsorption element 910 and the second adsorption element 920.

[0249] The first adsorption element 910 and the first interface element 510 can be connected by magnetic attraction. Here, the first adsorption element 910 can be a magnetic structure or an iron structure, etc. Alternatively, the first adsorption element 910 and the first interface element 510 can also be connected by vacuum attraction. Here, the first adsorption element 910 can be a suction cup-like structure.

[0250] The second adsorption element 920 and the second interface element 520 can be connected by magnetic attraction. Here, the second adsorption element 920 can be a magnetic structure or an iron structure, etc. Alternatively, the second adsorption element 920 and the second interface element 520 can also be connected by vacuum attraction. Here, the second adsorption element 920 can be a suction cup-like structure.

[0251] In some optional implementations of the embodiments of this application, the housing 100 may include a first half-shell 110 and a second half-shell 120. The first half-shell 110 and the second half-shell 120 may be connected by means of bonding, snap-fitting, welding, etc.

[0252] In this implementation, a receiving cavity 103 and an opening can be defined between the first half-shell 110 and the second half-shell 120.

[0253] In this implementation, as shown in Figures 8 and 12, the housing 100 may further include a first side cover 130 and a second side cover 140.

[0254] The first side cover 130 and the second side cover 140 can be arranged opposite each other or adjacent to each other.

[0255] The first side cover 130 can be attached to one side of the first half-shell 110 and the second half-shell 120 by means of bonding, snap-fitting, welding, etc.

[0256] The second side cover 140 can be attached to the other side of the first half-shell 110 and the second half-shell 120 by means of bonding, snap-fitting, welding, etc.

[0257] Here, the first opening 101 and the first storage slot 104 can be located on the first side cover 130, as shown in Figure 1. Of course, the first opening 101 and the first storage slot 104 can also be located in other positions.

[0258] Here, the second opening 102 and the second storage slot 105 can be located on the second side cover 140, as shown in Figure 3. Of course, the second opening 102 and the second storage slot 105 can also be located in other positions.

[0259] A charging device according to an embodiment of this application is described below with reference to the accompanying drawings.

[0260] In some embodiments, the charging device may be a data cable device as described in the above embodiments, or a device provided with a data cable device as described in the above embodiments.

[0261] Referring to FIG15, this application aims to provide an embodiment of a charging device.

[0262] In this embodiment, the charging device includes a main body A100, which is hollow and can accommodate various charging components. The main body A100 has various openings, at which a plug A240 and a charging connector A110 are located. The plug A240 facilitates connection to a power source, while the charging connector A110 connects to the electrical device to meet charging needs. In some embodiments, the openings may be the first opening 101, the second opening 102, the third opening, or the fourth opening as described in the above embodiments. In some embodiments, the charging connector A110 may be the first interface component 510, the second interface component 520, etc., as described in the above embodiments.

[0263] In some specific embodiments of this application, the main body A100 may be provided with a charging interface, which facilitates the connection of a detachable wire, is easy to use, and meets different usage needs.

[0264] In some embodiments, the main body A100 may be the housing 100 in the above embodiments.

[0265] In this embodiment, the main body A100 may include two housings A260, which cooperate to form a mounting cavity for mounting components of the charging device. In some embodiments, one of the housings A260 may be the first half-shell 110 in the above embodiment, and the other housing A260 may be the second half-shell 120 in the above embodiment.

[0266] In some specific embodiments of this application, the main body A100 may include a shell A260 and a cover A270, such that the shell A260 has a larger volume while the cover A270 has a smaller volume, reducing manufacturing difficulty and facilitating identification to avoid incorrect assembly. That is, in the above embodiments, one of the two shells A260 can be replaced by the cover A270.

[0267] In some specific embodiments of this application, the housing A260 and the cover A270 can be separated in the thickness direction of the charging device, so that the housing A260 is more open, which facilitates the arrangement and assembly of various components and reduces manufacturing difficulty.

[0268] In this embodiment, the main outer contour of the main body A100 can be rectangular, as shown in the square shape in Figure 15, which makes it convenient to store and carry.

[0269] In this embodiment, the main body A100 can be a cube with rounded corners on its edges to create a smooth transition, reduce sharp edges, and prevent scratching other items.

[0270] In this embodiment, the edge of the housing A260 can have a notch, which mates with the cover A270 to mount the side cover A140. The side cover A140 forms a storage cavity for accommodating the charging connector A110, reducing manufacturing difficulty. In some embodiments, the side cover A140 can be the first side cover 130 or the second side cover 140 in the above embodiments, etc.

[0271] In this embodiment, the edge of the side cover A140 can be provided with a plug-in edge, which is arranged almost around the outer contour of the side cover A140. Correspondingly, the notch of the housing A260 and the notch of the cover A270 are provided with slots. The plug-in edge and the slot cooperate to fix the side cover A140, reducing the installation difficulty.

[0272] In this embodiment of the charging device, the charging device is equipped with two wires. One end of the wires is connected to the main body A100, and the other end of the wires is provided with a charging connector A110. The charging connector A110 can be in the form of a Type-C interface or the like, to adapt to the settings of the product to be charged.

[0273] In some embodiments, one of the two wires may be the first cable 410 in the above embodiments, and the other may be the second cable 420 in the above embodiments.

[0274] Since this application aims to solve the problem of setting up storage slots A120 for each of the two charging connectors A110, in some specific embodiments of this application, a single wire can be configured with two or more charging connectors A110 to reduce application limitations.

[0275] In some specific embodiments of this application, the number of wires may be more than two to meet different usage needs.

[0276] In this embodiment, the main body A100 has a storage slot A120 for accommodating at least two charging connectors A110. The charging connectors A110 in the storage slot A120 are arranged side by side, and a fixing component is provided at the bottom of the storage slot A120 for fixing the charging connectors A110. In some embodiments, the storage slot A120 may be the first storage slot 104 and / or the second storage slot 105 in the above embodiments, etc.

[0277] In summary, by setting up a fixing component, this application can fix the charging connectors A110 one by one to the storage slots A120, so that the charging connectors A110 are neatly arranged in the storage slots A120. There is no need to set up a separate storage slot A120 for each charging connector A110, which can reduce the space occupied, reduce or even avoid the increase in the thickness of the charging device, reduce the space occupied, and make the structure of the charging device more compact and convenient to carry.

[0278] This application sets up a fixing component at the bottom of the storage slot A120 to avoid occupying the space around the side wall of the storage slot A120, which helps to keep the thickness of the charging device within a small range.

[0279] This application provides a fixing component at the bottom of the storage slot A120, so that the use and storage of each charging connector A110 do not affect each other.

[0280] This application arranges the two charging connectors A110 side by side, so that when each of the two charging connectors A110 is connected to a wire, the lengths of the two wires can be equal and relatively long, which makes full use of the internal space of the charging device and reduces usage differences.

[0281] In this application, long exposed wires can also be avoided, which helps protect the wires and prevents them from being damaged.

[0282] At the same time, this application can also reduce the area occupied by the fixed charging connector A110, so that more structures can be arranged on the main body A100, such as more charging output interfaces, such as the rotating and retractable plug A240, giving the charging device more advantages.

[0283] In some specific embodiments of this application, the storage slot A120 can be located on the end face of the main body A100, that is, on the large plane of the shell A260 or cover A270 shown in FIG15, so as to be applied to products such as power banks.

[0284] Since the storage slot A120 can accommodate more than two charging connectors A110 in a smaller volume, the size of the large flat surface of the housing A260 or cover A270 can also be reduced.

[0285] In this embodiment, the storage slot A120 is located on the side or narrow side of the main body A100, that is, at the position shown in Figure 15. This allows the main body A100 to accommodate longer wires and also allows the wires to be arranged in a retractable form to meet the needs of long-distance charging, such as when using a mobile phone while charging, or when the socket is far from the product to be charged.

[0286] Referring to Figures 16 and 17, in some specific embodiments of this application, the main body A100 may include a side cover A140, the side cover A140 having a first opening A160 and an annular wall A170 arranged along the edge of the first opening A160, the annular wall A170 forming the side wall of the storage groove A120, thereby making the portion forming the storage groove A120 independent of the shell A260 and the cover A270 of the main body A100, which facilitates manufacturing and reduces manufacturing difficulty.

[0287] In some specific embodiments of this application, the main body A100 may include a side shell A150, which forms the bottom of the receiving groove A120. The side shell A150 cooperates with the annular wall A170 to form the receiving groove A120. A wire inlet / outlet A180 is provided at the junction of the annular wall A170 and the side shell A150, thereby reducing the manufacturing difficulty of forming the wire inlet / outlet A180. In some embodiments, the wire inlet / outlet A180 may be the first opening 101 or the second opening 102 in the above embodiments.

[0288] Referring to Figure 18, in some specific embodiments of this application, a mounting groove A190 may be provided on the side of the side shell A150 facing away from the storage groove A120. The mounting groove A190 is used to install and fix the component. Therefore, when the fixing component includes the first magnetic member A130, the first magnetic member A130 can both fix the charging connector A110 and prevent the charging connector A110 from taking the first magnetic member A130 away during use. In some embodiments, the first magnetic member A130 may be the first adsorption member 910 or the second adsorption member 920 in the above embodiments.

[0289] In some specific embodiments of this application, the side shell A150 may have frame-shaped ribs for forming the mounting groove A190, which overcomes the influence of the rounded corners around the side shell A150 on the depth of the mounting groove A190, thus ensuring the depth of the mounting groove A190, while also enhancing the strength of the side shell A150 and making it less prone to deformation.

[0290] In some specific embodiments of this application, the frame-shaped ribs can be made into square frames to match the shape of the first magnetic accumulator A130.

[0291] In some specific embodiments of this application, the side cover A140 may be provided with a second opening A161, which is used to form a charging output interface, thereby facilitating the insertion of a separate wire into the charging output interface, without being limited to using the charging wire provided with the charging device, and making it easy to use universally.

[0292] In order to install the side shell A150 onto the side cover A140, in some specific embodiments of this application, one side of the side shell A150 may be provided with a side insertion part A200 that inserts into the annular wall A170, and the other side of the side shell A150 may be provided with a mounting ear A210. The mounting ear A210 is provided with a mounting hole A220, which accommodates a screw connecting to the annular wall A170. The space around the mounting ear A210 is used to form a wire inlet / outlet A180.

[0293] That is, insert the side connector A200 into the edge of the annular wall A170, then rotate the side shell A150 so that the mounting ear A210 fits against the side shell A150, and then pass the screw through the mounting hole A220 and connect the side cover A140 to fix the side shell A150 to the side cover A140.

[0294] During production and assembly, the wires can be placed in the wire inlet / outlet A180 first, and then the side shell A150 and the side cover A140 can be fixed.

[0295] In this embodiment, the side connector A200 can include a plug and a slot, allowing for multi-position insertion and improving installation reliability.

[0296] In some specific embodiments of this application, a plug-in structure A230 can be provided between the side shell A150 and the annular wall A170, which is inserted into the vertical direction of the receiving groove A120, so that the side shell A150 and the side cover A140 are accurately positioned and not easily misaligned.

[0297] In this embodiment, the vertically inserted insertion structure A230 is located on one pair of sides, while the side insertion part A200 and the mounting ear A210 are located on the other pair of sides.

[0298] In some specific embodiments of this application, the annular wall A170 can have a transition angle for forming the bottom of the groove, which is equivalent to locally increasing the descendant of the annular wall A170, making it easier to form a structure that mates with the side insertion part A200, and making it easier to form an insertion structure A230 that is inserted in the vertical direction for installation.

[0299] For the fixing component, the fixing component can be a Velcro, with one part of the Velcro located at the bottom of the storage slot A120 and the other part located at the charging connector A110. Therefore, when the charging connector A110 is placed in the storage slot A120, the Velcro fixes the charging connector A110 to the storage slot A120.

[0300] In some specific embodiments of this application, the fixing component may include a limiting post erected in the storage slot A120, and the charging connector A110 has a socket that fits onto the limiting post. Meanwhile, due to the lateral pulling of the wire, the charging connector A110 is fixed on the limiting post.

[0301] In some specific embodiments of this application, the fixing component may include a suction cup, which is used to attach and fix the charging connector A110.

[0302] In some specific embodiments of this application, the fixing component may include a first magnetic element A130, which uses the magnetic principle to fix the charging connector A110, reducing design difficulty and making it easy to implement.

[0303] In some specific embodiments of this application, the number of first magnetic components A130 can correspond to the number of charging connectors A110, and the first magnetic components A130 are arranged side by side so that the charging connectors A110 are placed side by side to avoid overlapping and affecting each other.

[0304] In some specific embodiments of this application, the charging connector A110 may have a second magnetic member corresponding to the first magnetic member A130. The first magnetic member A130 and the second magnetic member cooperate to fix the charging connector A110, thereby improving the reliability of fixing the charging connector A110 and making the position of the charging connector A110 more accurate.

[0305] In some specific embodiments of this application, the first magnetic member A130 may have a length direction, and the length direction of the first magnetic member A130 is arranged along the extension direction of the charging connector A110 to enhance the ability to fix the charging connector A110, while avoiding increasing the radial dimension of the charging connector A110 and avoiding increasing the space occupied.

[0306] Referring to Figures 15 and 19, in this embodiment, the main body A100 has a plug A240. The plug A240 and the storage slot A120 are located on opposite sides of the main body A100. Inserting the plug A240 and taking out the charging connector A110 do not affect each other, making it convenient to use.

[0307] In some specific embodiments of this application, the plug A240 may include rotatable prongs A250 for storage, preventing the prongs A250 from scratching items.

[0308] In some specific embodiments of this application, pin A250 can be located at the corner of the outer contour of the main body A100, making full use of the existing space without affecting the arrangement of other components.

[0309] In this embodiment, the edge of the housing A260 has a mounting notch A280, which mates with the cover A270 to mount the plug A240.

[0310] In this embodiment, the mounting notch A280 and the cover A270 have slots, which fix the plug A240 by plugging in, reducing the use of screws and simplifying the structure.

[0311] In this embodiment, the housing A260 and the cover A270 are also fixed by plugging. Positioning holes and positioning posts are provided between the housing A260 and the cover A270 to ensure accurate installation.

[0312] In some specific embodiments of this application, the plug A240 may include a base A290 and a decorative cover A300, and a pivot A310 located between the base A290 and the decorative cover A300. The base A290 is located inside the main body A100, the decorative cover A300 is exposed outside the main body A100, the pin A250 is connected to the end of the pivot A310, the radial outer surface of the pivot A310 is provided with a conductive part for connecting the pin A250, and the base A290 is provided with a conductive spring A320 for abutting the conductive part.

[0313] The base A290 and the decorative cover A300 are installed together, and one or both of the base A290 and the decorative cover A300 are installed on the main body A100, reducing manufacturing difficulty.

[0314] In this embodiment, the base A290 is provided with a recess, which limits and positions the pivot A310, preventing the pivot A310 from moving arbitrarily. A screw is provided between the base A290 and the decorative cover A300 for reliable fastening. The head of the screw is located in the base A290, which can prevent the screw from being exposed and prevent accidental disassembly.

[0315] During use, the current flows through pin A250, the conductive part and the conductive spring A320 to the transformer components inside the charging device, where it is converted into current and voltage that meet the usage requirements.

[0316] When pin A250 is folded, the conductive spring A320 has an arc-shaped arm that can limit the conductive part, keeping pin A250 folded and preventing accidental rotation.

[0317] When pin A250 is upright, the curved arm is flexible and can continuously contact the conductive part, ensuring smooth current flow.

[0318] Referring to Figures 20 and 21, the charging device may include a wire connected to the charging connector A110, a reel A330 for winding the wire, a coil spring that rotates the reel A330 to wind the wire, and an inner housing assembly for housing the wire, the reel A330, and the coil spring.

[0319] Therefore, the spring force will cause the wheel core A330 to rotate, thus retrieving the pulled-out wire.

[0320] In some embodiments, the wheel core A330 may be the first winding member 200 and / or the second winding member 300 in the above embodiments.

[0321] In this embodiment, there are two inner shell components to accommodate the two wires. At the same time, the shared use of some inner shell components reduces the space occupied and saves materials.

[0322] For ease of use, the wheel core A330 is equipped with an axial telescopic control mechanism for controlling the extension and retraction of the conductor.

[0323] The telescopic control mechanism includes a balance wheel A340 rotatably connected to the inner shell assembly, and the balance wheel A340 is provided with an eccentric post A350. In some embodiments, the balance wheel A340 may be the first limiting member 810 in the above embodiments, and the eccentric post A350 may be the first limiting post 811 in the above embodiments. In some embodiments, the balance wheel A340 may be the second limiting member 820 in the above embodiments, and the eccentric post A350 may be the second limiting post 821 in the above embodiments.

[0324] When wheel core A330 rotates, wheel core A330 will abut against the limiting post, causing the balance wheel A340 to rotate. In turn, the limiting post will block the rotation of the limiting wheel, or the limiting post will no longer obstruct the rotation of wheel core A330.

[0325] The wheel hub A330 is also equipped with a set of rails for sliding the eccentric column A350.

[0326] The track assembly may include an inner arc track A360 and an outer arc track A370, which are fitted together on the end face of the wheel core A330. A control post A380 is provided between the start and end points of the inner arc track A360 and the outer arc track A370. A guide cone A390 is provided on one side of the control post A380. The guide cone A390 is used to guide the eccentric post A350 into the outer arc track A370 or the inner arc track A360. The guide cone A390 is used to enable the wheel core A330 to rotate continuously. A limiting recess A400 is provided on the other side of the control post A380. The limiting recess A400 is used to keep the wheel core A330 stationary to control the length of the wire pulled out.

[0327] The working principle is as follows:

[0328] When the conductor is stationary, the charging connector A110 is engaged at the conductor inlet / outlet A180, and the limiting post may be located anywhere on the outer arc track A370 or the inner arc track A360.

[0329] When the wheel hub A330 rotates, the limiting post may be located anywhere on the outer arc track A370 or the inner arc track A360.

[0330] Pulling the wire outward, as shown by the arrow in Figure 21, causes the wheel core A330 to rotate more than one revolution. This will change the position of the limiting post relative to the center of the balance wheel A340. The limiting post will be located on the side of the center of the balance wheel A340 along the direction in which the wire is pulled out.

[0331] After the wire is released, the wheel core A330 will rotate in the opposite direction, causing the limit post to approach the junction of the outer arc track A370 and the inner arc track A360. The limit post will then return to the limit recess A400 of the control post A380, causing the limit post to rotate around the center of the balance wheel A340. The limit post is located on the side of the center of the balance wheel A340 facing away from the direction of wire pull-out. Then, the wheel core A330 stops rotating.

[0332] When the length of the wire is stretched again to be greater than one revolution of the wheel core A330, the above motion will be repeated, so that the length of the wire pulled out can be maintained.

[0333] When the length of the stretch is less than one revolution of the wheel core A330, the limit post will be located on the side of the center of the balance wheel A340 close to the center of the wheel core A330, and will not switch to the side of the center of the balance wheel A340 along the direction of the wire pull-out. Therefore, the limit post will enter the inner arc track A360.

[0334] At this point, after the wire is released, the coil spring will always exert a clockwise force on the wheel core A330, which is opposite to the direction in which the wire is pulled out. The wheel core A330 will continue to rotate clockwise until the wire is completely retracted.

[0335] In some embodiments, the mounting track may include a first inner annular slide 711, a first outer annular slide 712, a first sliding in channel 713, a first sliding out channel 714, and a first slot 715 as described in the above embodiments. In some embodiments, the inner arc-shaped track A360 may be the first inner annular slide 711 as described in the above embodiments. In some embodiments, the outer arc-shaped track A370 may be the first outer annular slide 712 as described in the above embodiments. In some embodiments, the control post A380 may form the first sliding in channel 713, the first sliding out channel 714, and the first slot 715 as described in the above embodiments.

[0336] In some embodiments, the mounting track may include the second inner annular slide 721, the second slide-in channel 723, the second outer annular slide 722, the second slide-out channel 724, and the second slot 725 as described in the above embodiments. In some embodiments, the inner arc-shaped track A360 may be the second inner annular slide 721 as described in the above embodiments. In some embodiments, the outer arc-shaped track A370 may be the second outer annular slide 722 as described in the above embodiments. In some embodiments, the control post A380 may form the second slide-in channel 723, the second slide-out channel 724, and the second slot 725 as described in the above embodiments.

[0337] Although the accompanying drawings show only one embodiment of the telescopic control mechanism, other existing technologies can also be used to meet different telescopic control needs.

[0338] In some specific embodiments of this application, a coil spring mounting port A410 can be provided on the other end face of the wheel core A330, so that the rotation control of the wheel core A330 and the coil spring mounting are separate and do not affect each other. In some embodiments, the coil spring mounting port A410 is provided so that the wheel core A330 can form the mounting groove 201 in the above embodiments.

[0339] In some embodiments, the coil spring may be the elastic element 530 in the above embodiments, or may be replaced by the elastic element 530.

[0340] In some specific embodiments of this application, the end face of the wheel core A330 may be provided with a power-conducting component A420, which is used to energize the wire.

[0341] In some specific embodiments of this application, the power-conducting component A420 can be located inside the inner arc-shaped track A360, making reasonable use of space and reducing the difficulty of layout.

[0342] In some specific embodiments of this application, the energizing component A420 may be located outside the outer arc-shaped track A370, or the energizing component A420 may be located on the other end face of the wheel core A330, but the installation of the coil spring and the coordinated arrangement of other components need to be considered.

[0343] In some specific embodiments of this application, the energized component A420 may include a plurality of conductive rails and a plurality of conductive contacts A430 for abutting against the plurality of conductive rails. The conductive rails and the plurality of conductive contacts A430 are arranged in a ring around the rotation center of the wheel core A330. One of the conductive rails and the conductive contacts A430 is disposed in the wheel core A330, and the other of the conductive rails and the conductive contacts A430 is disposed in the inner shell component.

[0344] In some embodiments, the energizing component A420 may include the first adapter 610 and the second adapter 620 described in the above embodiments. In some embodiments, the conductive rail may be the annular conductive groove 621 described in the above embodiments. In some embodiments, the conductive contact A430 may be the conductive protrusion 611 described in the above embodiments.

[0345] Therefore, when the wheel core A330 rotates, that is, when the extension wire is extended, the conductive contact A430 can continuously contact the conductive rail, avoiding interruption of electrical conduction or data communication and not affecting use.

[0346] In some specific embodiments of this application, the energized component A420 may include a follower circuit board disposed on the wheel core A330 and a fixed circuit board disposed on the inner shell component. The follower circuit board is used to set one of the conductive rail and the conductive contact A430, and the fixed circuit board is used to set the other of the conductive rail and the conductive contact A430. In some embodiments, one of the follower circuit board and the fixed circuit board may be a first adapter 610, and the other may be a second adapter 620.

[0347] In other words, the conductive rails and conductive contacts A430 are integrated on different circuit boards, which facilitates modular assembly and reduces manufacturing difficulty.

[0348] In some specific embodiments of this application, the conductive contacts A430 may include a number of contact groups arranged in a ring around the rotation center of the wheel core A330. The contact groups include a grounding pin, two data communication pins, a channel configuration pin, and a power supply pin.

[0349] The ground pin can be abbreviated or simplified as GND, the two data communication pins can be abbreviated or simplified as D+ and D-, the channel configuration pin can be abbreviated or simplified as CC, which is used for insertion detection, identification of positive and negative insertion, negotiation to establish DFP and UFP identities between two ports, etc., and the power supply pin can be abbreviated or simplified as VBUS (VCC), which meets the setting requirements such as charging voltage.

[0350] Please refer to Figures 22 and 23. An embodiment of this application provides an ultra-thin multi-layer cable reel B1, which includes a housing assembly B10, a mounting base B20, and at least two cable reel assemblies B30.

[0351] It should be noted that in the embodiments of this application, "at least two" refers to two or more.

[0352] In addition, the ultra-thin multi-layer cable winder B1 can be the data cable device in the above embodiments, or the charging device in the above embodiments.

[0353] Referring to Figure 23, the housing assembly B10 includes a first housing portion B11 and a second housing portion B12 arranged along a first direction. It is understood that the first direction described in Figures 22-23 may also be referred to as the "third direction".

[0354] It should be noted that the first direction refers to the direction indicated by the arrow in Figure 23.

[0355] In some embodiments, the housing assembly B10 may be the housing 100 in the above embodiments. In some embodiments, the housing assembly B10 may be the body A100 in the above embodiments.

[0356] In some embodiments, the first shell portion B11 may be one of the two shells A260 in the above embodiments, and the second shell portion B12 may be the other of the two shells A260. In some embodiments, the first shell portion B11 may be one of the first half-shell 110 and the second half-shell 120 in the above embodiments, and the second shell portion B12 may be the other of the first half-shell 110 and the second half-shell 120.

[0357] Mounting base B20 is disposed in the first direction between the first housing portion B11 and the second housing portion B12. Mounting base B20, along its first side in the first direction, encloses the first housing portion B11 to form a first space B1a, and along its second side in the first direction, it encloses the second housing portion B12 to form a second space B1b. It is understood that mounting base B20 can enclose both the first housing portion B11 to form the first space B1a and the second housing portion B12 to form the second space B1b. The first space B1a and the second space B1b share a single mounting base B20, which not only improves the utilization rate of mounting base B20 but also makes the distance between the first space B1a and the second space B1b along the first direction closer. This reduces the size of the ultra-thin multi-layer cable winder B1 in the first direction, making the ultra-thin multi-layer cable winder B1 compact, easy to carry, and easy to transport.

[0358] Please refer to Figures 23, 26 and 27. The cable reel assembly B30 includes a reel core B31 and a data cable B32.

[0359] In some embodiments, wheel core B31 may be wheel core A330 in the above embodiments.

[0360] In some embodiments, the wheel core B31 may be the first winding member 200 and / or the second winding member 300 in the above embodiments.

[0361] In some embodiments, the data line B32 may include the first cable 410 and the first interface 510 described above. In some embodiments, the data line B32 may include the second cable 420 and the second interface 520 described above.

[0362] In some embodiments, the data line B32 may include the charging connector A110 and wires as described in the above embodiments.

[0363] One end of the data cable B32 extends out of the housing assembly B10. Understandably, the end of the data cable B32 passing through the housing assembly B10 is for the user to pull.

[0364] The data cable B32 has an interface for docking with electronic devices at one end of the housing assembly B10 (e.g., the first interface 510 in the above embodiment, the second interface 520 in the above embodiment, or the charging connector A110 in the above embodiment). Users can electrically connect electronic devices via the data cable B32, for example, to charge the electronic devices.

[0365] It should be noted that there is no limit to the specific number of interfaces; for example, it can be one, two, or three, etc. There are no restrictions on the specific type of interface; for example, it can be Type-C, Lightning, Micro-USB, or Type-A, etc.

[0366] The hub B31 can rotate relative to the outer casing assembly B10 and is used to wind the data cable B32. Understandably, when the data cable B32 is not being pulled, it is wound around the hub B31 for easy storage and carrying. When the data cable B32 is pulled out by an external force, it extends and causes the hub B31 to rotate clockwise, increasing the length of the data cable B32 extending beyond the outer casing assembly B10, making it easier for the user to connect electronic devices using the data cable B32. When the hub B31 rotates counterclockwise, it causes the data cable B32 to retract into the outer casing assembly B10 for easy storage and carrying.

[0367] It should be noted that forward rotation refers to the rotation of wheel core B31 along the extension direction of data cable B32, while reverse rotation refers to the rotation of wheel core B31 along the retraction direction of data cable B32.

[0368] At least one winding assembly B30 is housed in a first space B1a, and at least one winding assembly B30 is housed in a second space B1b. The following description uses an example of one winding assembly B30 being housed in the first space B1a and one winding assembly B30 being housed in the second space B1b.

[0369] Understandably, the two cable winding assemblies B30 are respectively housed in the first space B1a and the second space B1b. The two cable winding assemblies B30 can operate independently, and users can electrically connect the data lines B32 of the two cable winding assemblies B30 to different electronic devices, increasing the application scenarios of the ultra-thin multi-layer cable winder B1. For example, the interface of the data line B32 of one cable winding assembly B30 is used to charge one electronic device, and the interface of the data line B32 of the other cable winding assembly B30 is used to charge another electronic device. Users can use the two cable winding assemblies to charge two different electronic devices.

[0370] In related technologies, cable winders using two winding assemblies are formed by housing the two winding assemblies in two different housings and then joining the two housings together using snaps and slots. The joining of the two housings increases the size of the cable winder in the joining direction, making it inconvenient for users to carry.

[0371] The ultra-thin multi-layer cable winder B1 of this application embodiment forms two independent spaces (i.e., the first space B1a and the second space B1b) by sharing a base plate B23 with the first housing B11 and the second housing B12. This allows users to meet their needs for electrical connection to different electronic devices by using the data cable B32 of the cable winding assembly B30 in different spaces, thus increasing the usage scenarios of the ultra-thin multi-layer cable winder B1. The base plate B23 serves as a shared structure that encloses the first space B1a and the second space B1b, eliminating the need for additional connectors. This makes the structure of the ultra-thin multi-layer cable winder B1 compact, reduces its size in the first direction, and makes it easy to carry.

[0372] For example, the ultra-thin multi-layer cable reel B1 includes a circuit board disposed inside the housing assembly B10. The circuit board is used for conductive contact with an external power source, and the other end of the data cable B32 is connected to the circuit board. That is, the circuit board serves as the input terminal of the ultra-thin multi-layer cable reel B1, used for contact with an external power source and for transmitting electrical energy, enabling the data cable B32 to power electronic devices.

[0373] In some embodiments, referring to Figures 22 and 23, the first housing portion B11 has a first cable outlet B11a, which communicates with the first space B1a. Thus, the data cable B32 of the winding assembly B30 located in the first space B1a can extend from the first cable outlet B11a.

[0374] In some embodiments, the first outlet B11a may be the wire inlet / outlet A180 in the above embodiments. In some embodiments, the first outlet B11a may be the first opening 101, the second opening 102, the third opening, or the fourth opening in the above embodiments.

[0375] For example, referring to Figures 22 and 23, the second housing portion B12 has a second cable outlet B12a, which communicates with the second space B1b. Thus, the data cable B32 of the cable winding assembly B30 located in the second space B1b can extend from the second cable outlet B12a.

[0376] In some embodiments, the second outlet B12a may be the wire inlet / outlet A180 in the above embodiments. In some embodiments, the second outlet B12a may be the first opening 101, the second opening 102, the third opening, or the fourth opening in the above embodiments.

[0377] It should be noted that the specific dimensions of the first cable outlet B11a and the second cable outlet B12a are not limited, as long as they allow the data cable B32 to extend or retract, but do not allow the interface of the data cable B32 to retract. This ensures that during retraction, the interface of the data cable B32 does not retract into the housing assembly B10, keeping the interface of the data cable B32 always outside the housing assembly B10, making it convenient for the user to pull the data cable B32.

[0378] For example, the ultra-thin multi-layer cable reel B1 includes flexible protective elements, with the edges of the first cable outlet B11a and / or the second cable outlet B12a provided with flexible protective elements. This reduces the likelihood of the data cable B32 being scratched by the edges of the cable outlets during pulling or retraction, extending the lifespan of the data cable B32, and also making it smoother for the user to pull the data cable B32, thus improving the user experience.

[0379] It should be noted that the above-mentioned flexible protective component installation schemes include the following: First, the flexible protective component is installed on the edge of the first outlet B11a; Second, the flexible protective component is installed on the edge of the second outlet B12a; Third, flexible protective components are installed on both the edge of the first outlet B11a and the edge of the second outlet B12a.

[0380] It should be noted that the specific material of the flexible protective component is not limited; for example, it can be silicone.

[0381] It should be noted that the specific structure of the mounting base B20 is not limited.

[0382] In some embodiments, referring to Figures 24 and 25, the mounting base B20 is an integral structure. This improves the structural strength of the mounting base B20, ensuring the stability of the first space B1a and the second space B1b formed by the mounting base B20, the first shell portion B11, and the second shell portion B12, respectively, thereby ensuring the stability of the ultra-thin multilayer winding device B1.

[0383] For example, referring to Figures 24 and 25, the mounting base B20 includes a base plate B23, which abuts against a first housing portion B11 and a second housing portion B12 on both sides along a first direction. It is understood that the base plate B23 is plate-shaped, and its size along the first direction is small, resulting in a closer distance between the first housing portion B11 and the second housing portion B12 along the first direction. This compact structure is beneficial for reducing the size of the ultra-thin multilayer winding device B1 in the first direction.

[0384] It should be noted that the specific manner in which the base plate B23 is connected to the first shell portion B11 and the second shell portion B12 is not limited. For example, the base plate B23 has protrusions on both sides along the first direction, and the first shell portion B11 and the second shell portion B12 have grooves. The protrusions and grooves cooperate with each other to fix the first shell portion B11 and the second shell portion B12 on the base plate B23.

[0385] In some embodiments, referring to Figures 24 and 25, the mounting base B20 further includes a first side plate B21 and a second side plate B22. The first side plate B21 is disposed along the edge of the base plate B23 and extends toward a first side in a first direction, and the second side plate B22 is disposed along the edge of the base plate B23 and extends toward a second side in the first direction. The first side plate B21 abuts against the first shell portion B11 in the first direction, and the second side plate B22 abuts against the second shell portion B12 in the first direction. This provides sufficient space in the first direction for the connection between the mounting base B20 and the first shell portion B11 and the second shell portion B12, thereby improving the strength of the connection between the first shell portion B11 and the second shell portion B12 and the mounting base B20.

[0386] It should be noted that the specific docking method between the first side plate B21 and the first shell portion B11 is not limited. For example, one of the first side plate B21 and the first shell portion B11 may have a protrusion, and the other may have a groove. The protrusion and the groove cooperate to achieve docking between the first side plate B21 and the first shell portion B11. Similarly, the specific docking method between the second side plate B22 and the second shell portion B12 is not limited. For example, one of the second side plate B22 and the second shell portion B12 may have a protrusion, and the other may have a groove. The protrusion and the groove cooperate to achieve docking between the second side plate B22 and the second shell portion B12.

[0387] In some embodiments, the outer surface of the ultra-thin multi-layer cable winder B1 has at least two perforated areas B20a. At least one perforated area B20a connects to the external environment and the first space B1a, and at least one perforated area B20a connects to the external environment and the second space B1b. External airflow can enter the interior of the ultra-thin multi-layer cable winder B1 through the perforated areas B20a, carrying away the heat accumulated inside the ultra-thin multi-layer cable winder B1 to dissipate heat.

[0388] It should be noted that the specific method of forming the hollow area B20a is not limited.

[0389] For example, referring to Figures 24 and 25, the first side plate B21 has a first notch B21a, which penetrates the end face of the first side plate B21 along a first side in a first direction. After the first shell portion B11 is connected to the first side plate B21, it encloses the first notch B21a to form a first hollow area, which connects the first space B1a and the external environment. The second side plate B22 has a second notch B22a, which penetrates the end face of the second side plate B22 along a second side in the first direction. After the second shell portion B12 is connected to the second side plate B22, it encloses the second notch B22a to form a second hollow area, which connects the second space B1b and the external environment. Thus, the shapes of the first notch B21a and the second notch B22a are simple, and no deep holes or core pulling are required during the manufacturing process, making the formation of the hollow area B20a simple and reducing the manufacturing difficulty of the ultra-thin multi-layer winding device B1.

[0390] For example, referring to Figures 24 and 28, the wheel core B31 has a first ring portion B31a on the side facing the base plate B23 along the first direction, and the base plate B23 has a second ring portion B23a on the side facing the wheel core B31 along the first direction. The first ring portion B31a and the second ring portion B23a cooperate with each other, forming a circular track during the rotation of the wheel core B31, allowing the other to slide along the circular track. This improves the smoothness of the wheel core B31's rotation when the user pulls the data cable B32, reduces the noise generated by the rotation of the wheel core B31, and enhances the user experience.

[0391] In some embodiments, referring to Figures 24 and 25, the mounting base B20 includes a base plate B23 and mounting shafts B24 disposed on both sides of the base plate B23. The wheel core B31 is sleeved on the outer periphery of the mounting shafts B24 and rotates around the mounting shafts B24. It is understood that the mounting shafts B24 can position the wheel core B31, enabling the wheel core B31 to rotate along a predetermined trajectory, thereby ensuring the stability of the wheel core B31 during rotation.

[0392] In some embodiments, the mounting shaft B24 may be the connecting shaft 540 in the above embodiments.

[0393] It should be noted that the specific structure of the wheel core B31 is not limited.

[0394] In some embodiments, referring to Figures 26 to 30, the wheel core B31 includes a wheel drum B311. The side wall of the wheel drum B311 has a locking port B311a. The data cable B32 includes a first end B32a and a second end B32b. The first end B32a extends out of the housing, and the second end B32b extends through the locking port B311a into the interior of the wheel drum B311 and is fixed to the wheel drum B311. Understandably, the second end B32b of the data cable B32 is fixed inside the reel drum B311. When the user pulls the data cable B32, which is wound on the reel core B31, to its maximum length, the tension on the data cable B32 has a component force radially outward toward the reel drum B311. Under the action of this component force, the data cable B32 will contact the drum side wall of the reel drum B311. The drum side wall has a certain structural strength, and the drum side wall of the reel drum B311 will apply force to the data cable B32 to resist the force of the user's pulling force. This can reduce the possibility of the data cable B32 falling off the reel drum B311 under a large pulling force, and improve the reliability of the ultra-thin multi-layer cable winder B1.

[0395] It should be noted that the specific thickness of the drum sidewall of the B311 reel is not limited.

[0396] It should be noted that the cross-section of the roller drum B311 is annular.

[0397] In some embodiments, referring to Figures 29 and 30, the wheel core B31 includes a clamping plate B312 located inside the wheel drum B311, and the clamping plate B312 and the drum sidewall of the wheel drum B311 are arranged radially at intervals to form a clamping groove B31b. The second end B32b of the data cable B32 is located within the clamping groove B31b. It is understood that the clamping groove B31b formed by the clamping plate B312 and the inner wall of the wheel drum B311 can fix the second end B32b of the data cable B32, further reducing the possibility of the data cable B32 falling off the wheel drum B311 under large tensile force, and improving the reliability of the ultra-thin multi-layer cable winder B1.

[0398] For example, referring to Figures 29 and 30, on the plane perpendicular to the axial direction of the reel drum B311, the clamping plate B312 is in the shape of an arc concentric with the reel drum B311. This makes the shape of the clamping plate B312 reasonable, facilitating the formation of an arc-shaped clamping groove B31b between the clamping plate B312 and the side wall of the reel drum B311, allowing the data cable B32 to better fit against the groove wall of the clamping groove B31b.

[0399] It should be noted that the axial direction of the roller drum B311 refers to the first direction in Figure 29.

[0400] For example, referring to Figure 27, the locking opening B311a is located on one side of the clamping groove B31b along the winding direction of the data cable B32. This allows the data cable B32 to be wound directly after passing through the clamping groove B31b and the locking opening B311a, reducing the possibility of the data cable B32 bending during the winding process.

[0401] For example, referring to Figures 29 and 30, the wheel core B31 includes at least two wheel side plates B313, which are disposed at both ends of the wheel drum B311 along the axial direction. The wheel side plates B313 extend radially along the wheel drum B311 and protrude from the side wall of the wheel drum B311. Thus, when the wheel core B31 winds the data cable B32, the two wheel side plates B313 can constrain the data cable B32 wound on the wheel drum B311, reducing the possibility of the data cable B32 falling off the wheel drum B311 and improving the reliability of the wheel core B31 winding the data cable B32.

[0402] In some embodiments, referring to Figures 23, 26, and 27, the cable winding assembly B30 includes a coil spring B33 disposed within the reel drum B311, providing a restoring force for the reel drum B311 to rotate in the direction of retracting the data cable B32. It is understood that during the extension of the data cable B32, the data cable B32 drives the reel drum B311 to rotate forward. The coil spring B33 stores elastic potential energy. When it is necessary to retract the data cable B32, the coil spring B33 uses its stored elastic potential energy to drive the reel drum B311 to rotate in the reverse direction, causing the reel drum B311 to retract the data cable B32 into the interior of the housing assembly B10. Furthermore, the coil spring B33 is disposed radially within the reel drum B311, preventing interference with the winding of the data cable B32 by the reel drum B311, resulting in a compact structure.

[0403] It should be noted that the specific arrangement of the coil spring B33 is not limited. In some embodiments, the coil spring B33 may be the coil spring in the above embodiments, the elastic element 530 in the above embodiments, or even be replaced by the elastic element 530 in the above embodiments.

[0404] Understandably, the arrangement of the wheel drum B311 allows the wheel core to form the mounting groove 201 in the above embodiment on one side, or the coil spring mounting port A410 in the above embodiment.

[0405] In some embodiments, referring to Figures 26 and 27, a wheel drum B311 is sleeved on a mounting shaft B24. One end of a coil spring B33 is connected to the wheel drum B311, and the other end of the coil spring B33 is connected to the mounting shaft B24. Thus, the mounting shaft B24 can support the coil spring B33. When the wheel drum B311 rotates around the mounting shaft B24 under external force, one end of the coil spring B33 rotates with the wheel drum B311, while the other end remains stationary, causing deformation. This allows the coil spring B33 to store elastic potential energy. When the coil spring B33 releases this elastic potential energy, it drives the wheel drum B311 to rotate in the opposite direction to restore its original shape.

[0406] A charger is a device that provides electrical power to various terminal devices. With the development of technology and the iteration of electrical products, chargers have become an indispensable device in people's daily lives. Users often own multiple terminal devices and can only carry multiple chargers to meet the charging needs of multiple terminal devices, which does not meet users' expectations for the portability of chargers.

[0407] Therefore, to solve the above problems, this application provides a multi-retractable cable charger, which solves the problem that a single charger can only charge a single terminal device by setting up a multi-retractable cable module. Detailed explanation follows.

[0408] In some embodiments, the multi-retractable cable charger may be a data cable device as described in the above embodiments, or a device equipped with a data cable device as described in the above embodiments.

[0409] In some embodiments, the multi-telescopic cable module may be the data cable device described in the above embodiments.

[0410] In some embodiments, the multi-retractable cable charger may be the charging device described in the above embodiments.

[0411] In some embodiments, the multi-telescopic cable module may be the charging device described in the above embodiments.

[0412] In some embodiments, the multi-retractable cable charger may be the ultra-thin multi-layer cable winder B1 in the above embodiments, or it may be a device provided with the ultra-thin multi-layer cable winder B1 in the above embodiments.

[0413] In some embodiments, the multi-telescopic cable module may be provided with the ultra-thin multi-layer cable reel B1 described in the above embodiments.

[0414] Please refer to Figures 31 to 33. Figure 31 is an exploded view of the charger provided in the embodiment of this application, Figure 32 is a perspective view of the charger provided in the embodiment of this application, and Figure 33 is an exploded view of the retractable cable module in the charger provided in the embodiment of this application.

[0415] The multi-telescopic charger provided in this application embodiment includes a housing C10. The housing C10 defines a first receiving cavity. A telescopic cable module C20 is disposed within the first receiving cavity. The housing C10 has an opening C10a communicating with the first receiving cavity.

[0416] In some embodiments, the outer casing C10 may be the housing 100 in the above embodiments. In some embodiments, the outer casing C10 may be the housing assembly B10 in the above embodiments. In some embodiments, the outer casing C10 may be the body A100 in the above embodiments.

[0417] In some embodiments, opening C10a may be the first opening 101, the second opening 102, the third opening, or the fourth opening in the above embodiments. In some embodiments, opening C10a may be the wire inlet / outlet A180 in the above embodiments. In some embodiments, opening C10a may be the first outlet B11a in the above embodiments.

[0418] The telescopic cable module C20 includes a first cable group C21. The first cable group C21 includes a first cable winding assembly C21a, a first cable reel C21b, and a first cable C21c. The first cable C21c is used to be wound onto the first cable reel C21b under the processing of the first cable winding assembly C21a.

[0419] In some embodiments, the telescopic cable module C20 may be a data cable device as described in the above embodiments.

[0420] In some embodiments, the telescopic cable module C20 may be the ultra-thin multilayer cable reel B1 in the above embodiments.

[0421] In some embodiments, the telescopic cable module C20 may be the charging device described in the above embodiments.

[0422] In some embodiments, the first winding assembly C21a may be the elastic element 530 in the above embodiments.

[0423] In some embodiments, the first winding assembly C21a may be the coil spring B33 in the above embodiments.

[0424] In some embodiments, the first reel C21b may be one of the first winding member 200 and the second winding member 300 in the above embodiments.

[0425] In some embodiments, the first reel C21b may be the spool A330 in the above embodiments.

[0426] In some embodiments, the first reel C21b may be the spool B31 in the above embodiments.

[0427] In some embodiments, the first wire C21c may be one of the first cable 410 and the second cable 420 in the above embodiments. In some embodiments, the first wire C21c may include the first cable 410 and the first interface 510 in the above embodiments. In some embodiments, the first wire C21c may include the second cable 420 and the second interface 520 in the above embodiments.

[0428] In some embodiments, the first wire C21c may be one of the two wires described in the above embodiments. In some embodiments, the first wire C21c may include the wire and the charging connector A110 described in the above embodiments.

[0429] In some embodiments, the first wire C21c may be the data line B32 in the above embodiments.

[0430] Optionally, the operation of the first winding assembly C21a, the first winding spool C21b, and the first wire C21c includes several embodiments as follows.

[0431] For example, Example 1.

[0432] The first winding assembly C21a includes necessary elastic components (not shown in the figure), such as springs (e.g., coil springs) or leaf springs. When the user needs to use the first winding assembly C21, the first wire C21c is pulled out, and the first winding spool C21b rotates against the elastic force of the first winding assembly C21a, so that the first wire C21c extends out of the outer casing C10 from the opening C10a along the first direction C1a. When the user does not need to use the first winding assembly C21, the first winding spool C21b rewinds under the elastic force of the first winding assembly C21a, thereby winding the first wire C21c around the first winding spool C21b. As for how the elastic component specifically drives the first winding spool C21b to rotate, how the first winding spool C21b locks itself in the working state, and how the locking of the first winding spool C21b is released and retracted after charging is completed, the embodiments of this application are not limited, and those skilled in the art can also determine the specific implementation method as needed.

[0433] For example, Example 2.

[0434] The first cable assembly C21a includes a hand-cranked structure, such as a pulsator or turntable, for manual rotation by the user. When the user needs to use the first cable assembly C21, the first cable C21c is pulled out, allowing it to extend from the opening C10a into the outer casing C10 along a first direction C1a. When the user does not need to use the first cable assembly C21, the hand-cranked structure is manually rotated, causing the first cable reel C21b to rewind, thereby winding the first cable C21c onto the reel C21b. The specific implementation of the hand-cranked structure is not limited in this application; those skilled in the art can determine its specific implementation as needed.

[0435] Understandably, the first direction C1a and / or the first direction C1b introduced in Figures 31-46 can also be referred to as the "fourth direction".

[0436] Furthermore, in addition to the first wire group C21 described above, the charger provided in this application embodiment also includes at least a second wire group C22. The second wire group C22 includes a second winding assembly, a second winding spool, and a second wire. The second wire is wound around the second winding spool under the processing of the second winding assembly. When the user needs to charge using the second wire, the second wire group C22 also extends from the opening C10a along the first direction C1a to the outer casing C10 to achieve charging. Optionally, the operation of the second winding assembly, the second winding spool, and the second wire can be described in Embodiments 1 and 2 above, and will not be repeated here. The second wire group C22 can adopt the same implementation as the first wire group C21, or it can adopt a different implementation than the first wire group C21.

[0437] Understandably, the setup and operation of the second wire group C22 can be found in the setup and operation of the first wire group C21, and will not be repeated here.

[0438] In the charger of this embodiment, the first output connector C21d of the first wire C21c and the second output connector 22d of the second wire maintain the same orientation after extending out of the outer casing C10. This design allows users to smoothly pull out any wire without adjusting the direction of force, avoiding friction between the wire and the outer casing caused by different connector orientations, thus reducing wire wear and the effort required for operation. Simultaneously, the consistent orientation of the first and second output connectors makes the product appearance cleaner and more aesthetically pleasing, enhancing the overall user experience.

[0439] In some embodiments, the first output connector C21d may be one of the first interface 510 and the second interface 520 in the above embodiments.

[0440] In some embodiments, the second output connector 22d may be another of the first interface 510 and the second interface 520 in the above embodiments.

[0441] In some embodiments, the first output connector C21d and / or the second output connector 22d may be the charging connector A110 in the above embodiments.

[0442] Optionally, in the charger provided in the embodiments of this application, the retractable cable module C20 includes at least two cable groups, and may further include a third cable group, a fourth cable group... and an Nth cable group. For ease of understanding, the following embodiments of this application use two cable groups (i.e., the first cable group C21 and the second cable group C22) as an example for illustration, but this does not constitute a limitation on the embodiments of this application.

[0443] In this embodiment, by setting at least two cable groups, each cable group uses a cable winding assembly and a cable reel to wind and store the charging cable. This allows for the inclusion of multiple retractable charging cables (e.g., the first cable C21c, the second cable, etc.) within a single charger, enabling users to charge multiple terminal devices simultaneously using a single charger. Furthermore, since the cables are wound and stored within the charger's outer casing C10, the charging cables are easily stored, eliminating the need for users to carry additional cables. This significantly increases the charger's integration, compactness, and portability.

[0444] It should be noted that the telescopic wire module C20 is disposed within the first receiving cavity defined by the outer shell C10. The specific arrangement of the telescopic wire module C20 within the outer shell C10 is not limited in the embodiments of this application. For ease of understanding, preferred embodiments are provided as follows.

[0445] For example, Example 3.

[0446] As shown in Figure 33, the telescopic line module C20 includes:

[0447] The inner shell defines a second receiving cavity.

[0448] The partition plate C33 is located inside the inner shell and divides the second receiving cavity into a first sub-cavity and a second sub-cavity.

[0449] Optionally, as shown in Figure 33, the inner shell has a first sub-shell C31 and a second sub-shell C32. The first sub-shell C31 and the second sub-shell C32 are respectively connected to the partition plate C33 from both sides. The specific connection method can be different, such as snap-fit, adhesive, or screw-fit, which is not limited in this embodiment. In this way, one side of the partition plate C33 and the first sub-shell C31 form a first sub-cavity, and the other side of the partition plate C33 and the second sub-shell C32 form a second sub-cavity.

[0450] In some embodiments, the inner housing may be the housing 100 in the above embodiments. In some embodiments, the inner housing may be the outer shell assembly B10 in the above embodiments. In some embodiments, the inner housing may be the body A100 in the above embodiments.

[0451] In some embodiments, the second receiving cavity may be the receiving cavity 103 in the above embodiments.

[0452] In some embodiments, the first subshell C31 may be one of the first half-shell 110 and the second half-shell 120 in the above embodiments. In some embodiments, the second subshell C32 may be the other of the first half-shell 110 and the second half-shell 120 in the above embodiments.

[0453] In some embodiments, the first subshell C31 may be one of the first half-shell 110 and the second half-shell 120 in the above embodiments. In some embodiments, the second subshell C32 may be the other of the first half-shell 110 and the second half-shell 120 in the above embodiments.

[0454] In some embodiments, the first sub-shell C31 may be one of the two shells A260 in the above embodiments. In some embodiments, the second sub-shell C32 may be the other of the two shells A260 in the above embodiments.

[0455] In some embodiments, the first subshell C31 may be one of the first shell portion B11 and the second shell portion B12 in the above embodiments. In some embodiments, the second subshell C32 may be the other of the first shell portion B11 and the second shell portion B12 in the above embodiments.

[0456] In some embodiments, the first subshell C31 may be referred to as the "first shell" and the second subshell C32 may be referred to as the "second shell".

[0457] In some embodiments, the partition plate C33 may be the mounting base B20 in the above embodiments.

[0458] In some embodiments, the first sub-cavity may be one of the first spaces B1a and B1b in the above embodiments. In some embodiments, the second sub-cavity may be the other of the first spaces B1a and B1b in the above embodiments.

[0459] The first wire group C21 is located in the first sub-cavity; the second wire group C22 is located in the second sub-cavity.

[0460] In this manner, the first cable group C21 and the second cable group C22 are parallel to each other in the retracted state, and their operation does not interfere with each other. Users can easily pull out either cable group or both cable groups simultaneously for charging. At the same time, by setting up the separator C33, the two cable groups share a single inner shell, effectively reducing the space occupied by the telescopic cable module C20, thereby helping to reduce the overall size of the charger.

[0461] For example, Example 4.

[0462] As shown in Figure 31, the outer casing C10 includes a first bottom wall C11 and a second bottom wall C12 disposed opposite to each other. The first wire assembly C21 also includes a first shell (not shown in the figure), the first shell and the first bottom wall C11 forming a first inner cavity. The first winding assembly C21a and the first winding reel C21b are disposed in the first inner cavity. Furthermore, in some embodiments, the first bottom wall C11 may be one of the first half-shell 110 and the second half-shell 120 in the above embodiments, or may be part of one of the first half-shell 110 and the second half-shell 120. In some embodiments, the second bottom wall C12 may be the other of the first half-shell 110 and the second half-shell 120 in the above embodiments, or may be part of the other of the first half-shell 110 and the second half-shell 120. In some embodiments, the first shell may function as the partition plate C33 in the above embodiments. In some embodiments, the first shell may function as the mounting base B20 in the above embodiments.

[0463] The second wire assembly C22 further includes a second housing (not shown in the figure), which forms a second inner cavity with the second bottom wall C12. The second wire winding assembly and the second wire reel are disposed in the first inner cavity. In some embodiments, the second housing may function as the partition plate C33 in the above embodiments. In some embodiments, the second housing may function as the mounting base B20 in the above embodiments.

[0464] In this embodiment, compared to embodiment 3, each telescopic cable module only has half a shell, namely a first shell and a second shell. The first shell and the first bottom wall form a first inner cavity, and the second shell and the second bottom wall form a second inner cavity. This is equivalent to forming two relatively independent telescopic cable modules through the first shell and the second shell.

[0465] In this embodiment, compared with embodiment 3, the telescopic line module C20 no longer has a separate inner shell. Instead, it makes full use of the original structure of the outer shell C10 to form a first inner cavity and a second inner cavity through the first shell and the second shell.

[0466] Eliminating the nesting relationship between the outer shell C10 and the inner shell helps to reduce the overall size of the charger. The inner cavities formed by the first shell and the second shell independently separate the first wire group C21 and the second wire group C22, which allows the two wire groups to work independently without interfering with each other.

[0467] It is understandable that the retractable cord module C20 is used to output the voltage obtained by the charger from the power source to the terminal device being charged. Different terminal devices require different charging voltages depending on the actual situation. This requires the charger to perform a voltage conversion operation. For example, a conversion component C40 can be provided. Optionally, the conversion component C40 is used to process the first voltage input by the power source into a second voltage. Preferably, the conversion component C40 includes a circuit for converting the voltage value, such as a transformer circuit, so that the voltage is adapted to the charging requirements of the terminal device.

[0468] In some embodiments, the conversion component C40 may be a transformer component as described in the above embodiments, or may include a transformer component as described in the above embodiments.

[0469] Optionally, the first voltage is not limited to the voltage input from the power source, but can also be the voltage input from other terminal devices, or the voltage input from a mobile power bank, etc. This application embodiment does not limit this.

[0470] Furthermore, regarding the preferred fit between the conversion component C40 and the telescopic line module C20, in conjunction with embodiments 1, 2, 3, and 4 of the telescopic line module C20 within the outer casing C10, the following two different implementation methods are adopted respectively, which are described in detail below.

[0471] For example, Example 5.

[0472] Please refer to Figures 31, 34 and 35. Figure 34 is a perspective view of one side of the charger provided in the embodiment of this application after removing the outer shell; Figure 35 is a perspective view of the other side of the charger provided in the embodiment of this application after removing the outer shell.

[0473] As shown in Figure 31, the outer shell C10 includes a first bottom wall C11 and a second bottom wall C12 that are disposed opposite to each other, and the telescopic wire module C20 is disposed in the accommodating space formed by the first bottom wall C11 and the second bottom wall C12.

[0474] As shown in Figure 34, the conversion component C40 is connected to the first wire group C21 through the first wire group C41, and the first wire group C41 is disposed between the first bottom wall C11 and the telescopic wire module C20.

[0475] As shown in Figure 35, the conversion component C40 is connected to the second wire group C22 through the second wire group C42, and the second wire group C42 is disposed between the second bottom wall C12 and the telescopic wire module C20.

[0476] In this embodiment, the charger obtains a first voltage from the power source. The conversion component C40 processes the first voltage into a second voltage, which is then transmitted to the first wire group C21 via the first wire group C41 and to the second wire group C22 via the second wire group C42. This allows the first wire group C21 and the second wire group C22 to respectively deliver the processed second voltage to the terminal device being charged. Since the first wire group C21 and the second wire group C22 are separated on both sides of the charger, correspondingly, the first wire group C41 and the second wire group C42 are connected to the corresponding first wire group C21 and second wire group C22 along both sides of the charger, namely the first bottom wall C11 side and the second bottom wall C12 side. On one hand, the first wire group C41 and the second wire group C42 can be electrically connected with the same length, effectively reducing the wiring length of the wire groups, thereby saving material costs and reducing the size of the charger. On the other hand, the wire groups inevitably generate heat during voltage transmission; placing the two wire groups on both sides helps reduce heat accumulation and promotes uniform heat distribution.

[0477] For example, Example 6.

[0478] The conversion component C40 is connected to the first wire group C21 via the first wire group C41 and to the second wire group C22 via the second wire group C42. The first wire group C41 and the second wire group C42 are disposed between the first shell and the second shell.

[0479] In this embodiment, as described above, the first shell and the first bottom wall C11 form a first inner cavity, and the second shell and the second bottom wall C12 form a second inner cavity. Thus, the first wire group C41 and the second wire group C42 are disposed between the first and second inner cavities, with the first wire group C41 and the second wire group C42 running between the two telescopic wire modules. This ensures that the wire lengths of the two wire groups are consistent, effectively reducing the wire length and thus saving material costs and reducing the size of the charger. Furthermore, since the first wire group C41 and the second wire group C42 are located on either side of the first and second inner cavities respectively, the first wire group C21 and the second wire group C22 disposed within the two inner cavities generate relatively low heat during operation, effectively dissipating heat from the first wire group C41 and the second wire group C42.

[0480] Optionally, the first wire group C21 includes a first output connector C21d, and the second wire group C22 includes a second output connector 22d. The interface types of the two output connectors include, but are not limited to, Type-C or Lightning interfaces, thereby connecting to a terminal device for charging. The interface types of the first wire group C21 and the second wire group C22 can be the same or different, and this embodiment of the application is not limited in this respect.

[0481] It should be noted that the first output connector C21d and the second output connector 22d are fixed to the outer shell C10 of the charger in the non-working state, and can be removed by the user in the working state. The specific implementation method is explained in detail below.

[0482] Please refer to Figure 32. The outer shell C10 has a storage groove C10b. The storage groove C10b is connected to the first receiving cavity through the opening C10a. The first output connector C21d and the second output connector 22d are stored in the storage groove C10b.

[0483] In some embodiments, the storage slot C10b may be the storage slot A120 in the above embodiments. In some embodiments, the storage slot C10b may be the first storage slot 104 and / or the second storage slot 105 in the above embodiments, etc.

[0484] In this way, the outer shell C10 is fixed to the first output connector C21d and the second output connector 22d through the storage slot C10b. The first output connector C21d and the second output connector 22d are directly located at the opening C10a, which makes it convenient for the user to pull them out during use.

[0485] In some embodiments, a first magnetic suction member (not shown in the figure) may be provided in the storage groove C10b of the outer casing C10, and a second magnetic suction member (not shown in the figure) may be provided in the first output connector C21d and the second output connector 22d. The first output connector C21d and the second output connector 22d are fixed in the storage groove by the magnetic attraction of the first magnetic suction member and the second magnetic suction member.

[0486] For example, the first magnetic component can be a permanent magnet, and the second magnetic component can be a permanent magnet or an iron sheet that can be magnetically attracted to the permanent magnet.

[0487] It is understandable that the arrangement and cooperation of the first magnetic attractor and the second magnetic attractor can be referred to the arrangement and cooperation of the first magnetic attractor A130 and the charging connector A110 in the above embodiments, or the arrangement and cooperation of the first adsorption member 910 and the first interface member 510 in the above embodiments, or even the arrangement and cooperation of the second adsorption member 920 and the second interface member 520 in the above embodiments. Further details are omitted.

[0488] Optionally, regarding the specific mating relationship between the first output connector C21d, the second output connector 22d, and the receiving slot C10b, a preferred embodiment is further provided as follows:

[0489] For example, Example 7.

[0490] The first output connector C21d is housed in the storage slot C10b. Along the length direction of the first output connector C21d, the projection of the first output connector C21d is located within the projection of the outer shell C10. Along the width direction of the first output connector C21d, the projection of the first output connector C21d is located within the projection of the outer shell C10.

[0491] In this embodiment, the first output connector C21d is a flat, elongated strip with length and width on a two-dimensional plane. Along its length, the length of the first output connector C21d is less than or equal to the length of the receiving groove C10b; along its width, the width of the first output connector C21d is less than or equal to the width of the receiving groove C10b. Therefore, the depth of the receiving groove C10b is greater than or equal to the height of the first output connector C21d, allowing the first output connector C21d to be completely contained within the receiving groove C10b. This helps protect the first output connector C21d and prevents it from being worn.

[0492] Optionally, as shown in Figure 32, the storage groove C10b is recessed, approximately bowl-shaped, and the first output connector C21d is completely housed in the recessed storage groove C10b. The outer wall of the storage groove C10b has a smooth arc surface, making it easy for the user's fingers to slide in and out of the first output connector C21d. This design allows for complete storage and conforms to ergonomic design.

[0493] The second output connector 22d is implemented in the same way as the first output connector C21d in this embodiment, and will not be described again here.

[0494] For example, Example 8.

[0495] The first output connector C21d is housed in the receiving groove C10b. Along the length direction of the first output connector C21d, the projection of the first output connector C21d extends at least partially beyond the projection of the outer shell C10. Along the width direction of the first output connector C21d, the projection of the first output connector C21d extends at least partially beyond the projection of the outer shell C10. Along the thickness direction of the first output connector C21d, the projection of the first output connector C21d is located within the projection of the outer shell C10.

[0496] In this embodiment, the first output connector C21d is a flat, elongated strip with length and width on a two-dimensional plane and a certain thickness in the Z-axis direction. In this way, the depth of the storage groove C10b is less than the height of the first output connector C21d, so that the first output connector C21d protrudes from the surface of the storage groove C10b, making it convenient for the user to take it out.

[0497] The second output connector 22d is implemented in the same way as the first output connector C21d in this embodiment, and will not be described again here.

[0498] In summary, the charger provided by this application has multiple retractable cable functions, including a housing that defines a first receiving cavity. A retractable cable module is disposed within the first receiving cavity. The housing has an opening communicating with the first receiving cavity. The retractable cable module includes: a first cable group comprising a first winding assembly, a first winding spool, and a first cable, the first cable being wound onto the first winding spool under the processing of the first winding assembly; and a second cable group comprising a second winding assembly, a second winding spool, and a second cable, the second cable being wound onto the second winding spool under the processing of the second winding assembly. The first cable extends out of the housing from the opening along a first direction, and the second cable also extends out of the housing from the opening along the first direction. Therefore, multiple retractable cables for charging can be provided in a single charger, allowing users to charge multiple terminal devices simultaneously using a single charger. Furthermore, since the cables are wound and stored within the charger's housing, it is convenient to store the charging cables, eliminating the hassle of users carrying additional charging cables, and greatly increasing the charger's integration, compactness, and portability.

[0499] Furthermore, the addition of a retractable cable module inevitably increases the size of the charger. For faster charging and faster recharging, users expect chargers with higher power output. For portability and ease of use, users expect chargers to be smaller.

[0500] In addition, to achieve greater charging power, larger electronic components need to be installed inside the charger, such as a larger transformer inside the charger, and larger electronic components will inevitably lead to a larger size of the charger.

[0501] Currently, some chargers seek a balance between charging power and size, that is, they select electronic components of moderate size in order to achieve moderate charging power and moderate charger size. However, this approach does not achieve optimal results in terms of either charging power or charger size.

[0502] To address the aforementioned issues, this application provides a small-volume charger. By rationally configuring the component installation method within the charger, it solves the technical problem of balancing charging efficiency and size in current chargers. The specific implementation method is described in detail below.

[0503] Please refer to Figures 31 to 39, where Figure 36 is a front view of Figure 34; Figure 37 is a front view of Figure 35. Figure 38 is a perspective view of the conversion component, and Figure 39 is a front view of the conversion component. The small-volume charger provided in this embodiment includes:

[0504] The outer shell C10 defines a first receiving cavity.

[0505] A conversion component C40 is disposed within the first receiving cavity. The conversion component C40 is used to process the input first voltage into a second voltage. As described above, as an optional embodiment, the conversion component C40 includes circuitry for converting the voltage value, such as a transformer circuit, to adapt the voltage to the charging requirements of the terminal device.

[0506] The telescopic cable module C20 is disposed in the first receiving cavity. The telescopic cable module C20 is electrically connected to the conversion component C40 and is used to convert the second voltage output of the conversion component C40.

[0507] The conversion component C40 at least partially encloses the telescopic cable module C20.

[0508] The specific implementations of the outer casing C10, conversion component C40, and retractable cable module C20 have been described in detail above and will not be repeated here. In this embodiment, in order to reduce the size of the charger, the conversion component C40 and the retractable cable module C20 are not arranged in a flat or stacked manner. Instead, the conversion component C40 is arranged to at least partially enclose the retractable cable module C20. This achieves the avoidance of the retractable cable module C20 by the conversion component C40, allowing the conversion component C40 and the retractable cable module C20 to be arranged more compactly within the first receiving cavity enclosed by the outer casing C10, thereby reducing the volume of the first receiving cavity and achieving the purpose of reducing the size of the charger.

[0509] Furthermore, the first receiving cavity is divided into a heat dissipation cavity and a heat generation cavity. The heat generation cavity is used to place electronic components that generate heat, and the heat dissipation cavity is used to place mechanical components. The heat generation cavity at least partially encloses the heat dissipation cavity, and the conversion component is located in the heat generation cavity.

[0510] In this embodiment, by at least partially enclosing the heat dissipation cavity within the heating cavity, sufficient heat exchange is achieved between the heated and non-heated parts of the charger. This allows the non-heated mechanical components in the charger to also function as heat sinks, thus achieving heat dissipation. Within a limited space, existing components are fully utilized for heat dissipation, improving the charger's heat dissipation efficiency without adding additional heat dissipation devices, thereby balancing the charger's charging volume and heat dissipation efficiency.

[0511] Optionally, embodiments of this application further include the following solutions:

[0512] As shown in Figure 32, the first output connector C21d and the second output connector 22d have the same extension length in the receiving groove C10b, and their ends are in the same vertical plane. Both output connectors are completely received in the receiving groove C10b, with no part protruding from the opening of the receiving groove C10b. A first gap is formed between the end of the first output connector C21d and the inner wall of the end of the receiving groove C10b, and between the end of the second output connector 22d and the inner wall of the end of the receiving groove C10b. The size of the first gap is 1mm-5mm (preferably 3mm).

[0513] In this embodiment, the two output connectors extend to the same length, ensuring the symmetry and regularity of the charger's appearance and improving the product's aesthetics. The first gap of 1mm-5mm avoids the output connectors from being squeezed against the inner wall of the storage groove C10b during storage and vibration due to an excessively small gap, preventing deformation of the connector shell and internal contacts. It also avoids the output connectors from swaying freely within the storage groove C10b due to an excessively large gap, preventing frequent collisions between the connectors and the inner wall that could cause wear. The uniform gap size provides a standardized basis for the mass production of the charger, reducing assembly problems caused by processing errors.

[0514] Furthermore, the first output connector C21d and the second output connector 22d are arranged adjacently and parallel to each other in the receiving groove C10b, with their central axes parallel to each other, and the distance between the outer walls of the two output connectors is 1mm-6mm (preferably 4mm). This distance is the minimum straight-line distance between the two connectors, and there are no components obstructing the view.

[0515] In this embodiment, the 1mm-6mm spacing effectively prevents the two output connectors from colliding or tangling during the winding and extension process, ensuring that they work independently and stably. The reasonable spacing does not require increasing the overall size of the storage slot C10b, thus avoiding an increase in the size of the charger, and also provides necessary heat dissipation space between the two connectors to prevent the temperature from becoming too high due to the superposition of heat generated by the connectors during charging, thereby improving charging safety. The standardized spacing size facilitates the mold processing of the storage slot C10b and improves production efficiency.

[0516] Furthermore, a partition (not shown) is provided between the first output connector C21d and the second output connector 22d within the storage slot C10b. Optionally, the partition is made of rigid plastic and is integrally injection molded with the inner wall of the storage slot C10b, or it is fixedly connected to the storage slot C10b by snap-fit ​​or adhesive. The height of the partition is consistent with the depth of the storage slot C10b, and the length is consistent with the storage length of the two output connectors, completely separating the two output connectors without any space overlap.

[0517] In this embodiment, the partition physically separates the two output connectors, completely preventing them from colliding or tangling during storage and use, thus further improving operational stability. The partition also limits the output connectors on both sides, preventing them from swaying left and right within the storage slot C10b and ensuring neat storage. When the partition and storage slot C10b are integrated, no additional assembly process is required, improving production efficiency. The snap-fit / adhesive connection method facilitates later component repair and replacement. The rigid plastic partition has good insulation properties, effectively preventing the risk of short circuits caused by leakage between the two output connectors and improving charging safety.

[0518] Furthermore, the storage slot C10b is located on the first side of the outer casing C10, and the input component C50, such as a power plug, is located on the second side of the outer casing C10. The first side and the second side are opposite sides. The first output connector C21d and the second output connector 22d extend from the storage slot C10b in a horizontal first direction C1a, and the input component C50, such as a power plug, extends from the outer casing C10 in a vertical direction. The extension directions of the two are perpendicular to each other and do not intersect spatially.

[0519] In this embodiment, the extension direction of the input component C50, such as the power plug, is vertical and perpendicular to the extension directions of the first output connector C21d and the second output connector 22d. Therefore, in the working state, when the user pulls out the first output connector C21d or the second output connector 22d, since the input component C50, such as the power plug, is perpendicular to the pulling direction, the entire charger will not come loose due to the pulling force, thereby improving the user experience.

[0520] As a result, the output connector is perpendicular to the extension direction of the input component C50, such as the power plug. When the charger is plugged into a wall socket or power strip through the input component C50, the charging cable extends horizontally, preventing the charging cable from getting tangled or squeezed between itself and the input component C50, such as the power plug or socket, ensuring smooth extension and retraction of the charging cable. The horizontal extension of the charging cable allows the device being charged to be placed stably on a flat surface such as a desktop or the ground, preventing the device from hanging due to the vertical extension of the charging cable and reducing the risk of the device falling. The vertical design makes the force on the charger more even, reducing the loosening of the input component C50, such as the power plug, caused by the pulling of the charging cable, and improving the stability of the charging connection.

[0521] In some embodiments, the input component C50 may be the plug A240 in the above embodiments.

[0522] Furthermore, as shown in Figure 32, the first side of the outer casing C10 (the side where the storage slot C10b is located) is also provided with an output port (not shown in the figure) for connecting to an external power supply; the extension direction of the output port is vertical and perpendicular to the extension direction of the first output connector C21d and the second output connector 22d.

[0523] In some embodiments, the output port may be the charging output interface in the above embodiments.

[0524] Furthermore, the output port is directly opened on the inner wall of the storage slot C10b, and is the same structural unit as the storage slot C10b. The storage slot C10b and the outer shell C10 are made by integrated injection molding process without splicing gaps. The end face of the output port is flush with the inner wall of the storage slot C10b, which does not affect the normal storage and extension of the first output connector C21d and the second output connector 22d in the storage slot C10b.

[0525] In this embodiment, the output port and the storage slot C10b are integrated, eliminating the need to reserve space for the port separately on the outer casing C10, further improving the charger's structural compactness and reducing its overall size. The outer casing C10, storage slot C10b, and output port are integrally molded, reducing the number of parts and assembly processes, improving production efficiency, and lowering production costs. The seamless structural design reduces the channels for dust and moisture intrusion, improving the charger's dustproof and waterproof performance and extending the lifespan of internal components. The centralized layout of interfaces makes it easy for users to quickly find the charging interface, improving operational convenience.

[0526] Furthermore, when the first output connector C21d and / or the second output connector 22d are housed in the receiving groove C10b, their end regions (1 / 3 to 1 / 2 of the length direction) protrude from the opening of the receiving groove C10b, thereby causing the protruding part to protrude from the outer surface of the outer shell C10, with a protrusion height of 1mm-3mm; the main body of the output connector is still housed in the receiving groove C10b, with only a small portion of the end protruding.

[0527] In this embodiment, the small protrusion at the end provides users with a clear and easy-to-grip point, allowing them to easily pull out the output connector without the need for fingernails or tools, greatly improving ease of use, especially suitable for users with limited dexterity; the protrusion height is only 1mm-3mm, preventing the connector from getting caught on other items during charger transport, and also not affecting the overall portability of the charger; the main body of the output connector is still stored in the storage slot C10b, protecting the core area and preventing the main parts of the connector from being bumped or worn.

[0528] Furthermore, the overall thickness of the first output connector C21d and / or the second output connector 22d is less than the depth of the receiving groove C10b, with a thickness difference of 0.5mm-2mm; when the output connector is received in the receiving groove C10b, its top surface is completely lower than the opening of the receiving groove C10b, achieving complete containment, with no part protruding from the receiving groove C10b.

[0529] In this embodiment, the output connector is completely housed within the storage slot C10b, achieving full enclosure protection and preventing the connector from bumping or scratching against external objects during carrying and placement, thus protecting the connector contacts and the outer shell. The top surface of the output connector is lower than the opening of the storage slot C10b, keeping the outer surface of the charger flat, improving the grip and portability, and avoiding inconvenience caused by protruding parts. The thickness difference of 0.5mm-2mm provides a slight buffer space for the storage of the output connector, preventing the connector from not being fully stored due to processing errors, and also preventing hard collisions caused by vibration within the storage slot C10b.

[0530] Furthermore, as shown in Figure 34, the transformer (not shown) adopts a ring or semi-ring structure design, with its inner wall fitting against the outer wall of the telescopic wire module C20. The ring / semi-ring portion of the transformer covers at least 1 / 2 of the outer circumference of the telescopic wire module C20. The transformer and the telescopic wire module C20 are isolated by a heat insulation pad (not shown) and have no direct contact. The connection points of the transformer terminals with the first conductor group C41 and the second conductor group C42 are located outside the wrapping gap.

[0531] In this embodiment, the transformer partially encloses the retractable cable module C20, achieving spatial nesting between the two. This avoids the increased thickness / width of the charger caused by the traditional flat layout, significantly reducing the overall size of the charger and improving structural compactness and portability. A heat insulation pad is placed between the transformer and the retractable cable module C20 to effectively isolate the heat generated by the transformer during operation, preventing heat transfer to the mechanical parts of the retractable cable module C20, preventing the cable from aging due to high temperatures, and extending the service life of the components. The ring / semi-ring design of the transformer increases its heat dissipation area and improves heat dissipation efficiency. At the same time, the enclosing structure makes the center of gravity inside the charger more uniform, improving placement stability.

[0532] Further, as shown in Figure 34, the first accommodating cavity defined by the outer shell C10 is divided into a heat dissipation cavity and a heat generation cavity. The heat generation cavity has an annular structure, and the heat dissipation cavity is located inside the heat generation cavity. The heat generation cavity covers at least 3 / 4 of the outer periphery of the heat dissipation cavity. The heat generation cavity is used to place electronic components that generate heat, including the conversion component C40, transformer, circuit board, etc. The heat dissipation cavity is used to place mechanical components, including the first winding assembly C21a, the first winding reel C21b, the second winding assembly, the second winding reel, etc. of the telescopic wire module C20. The conversion component C40 is embedded in the central area of ​​the heat generation cavity, with a heat dissipation gap between it and the inner wall of the heat generation cavity, and is close to the outer wall of the heat dissipation cavity.

[0533] In this embodiment, the structural design of the heating cavity surrounding the heat dissipation cavity allows the heat generated by the heating device to be quickly transferred to the mechanical components of the heat dissipation cavity. The low heat generation and large size of the mechanical components enable passive heat dissipation, significantly improving the overall heat dissipation efficiency of the charger and preventing localized overheating. No additional fans, heat sinks, or other heat dissipation devices are required, effectively controlling the charger's size and cost while improving heat dissipation efficiency. The heating device and mechanical components are placed separately to avoid the impact of heat on the mechanical components, preventing the elastic parts of the winding assembly and the wire from aging due to high temperatures. Simultaneously, the movement of the mechanical components avoids interference with the circuit connections of the heating device, improving the charger's operational stability and lifespan. The conversion component C40 is located in the central area of ​​the heating cavity, allowing its heat to be evenly distributed to the surrounding area, preventing localized heat accumulation and further enhancing the heat dissipation effect.

[0534] It should be noted that the specific implementation of the conversion component C40 wrapping the telescopic cable module C20 is not limited in the embodiments of this application. For ease of understanding, preferred embodiments are provided as follows:

[0535] For example, Example 9.

[0536] As shown in Figures 36 and 37, the outer shell C10 includes a first inner wall C101 and a second inner wall C102, wherein: the first inner wall C101 and the second inner wall C102 are connected, and the conversion component C40 is arranged in an L-shape along the first inner wall C101 and the second inner wall C102 in the first receiving cavity; the cable outlet (i.e., the storage groove C10b) of the telescopic cable module C20 is away from the first inner wall C101 and the second inner wall C102.

[0537] In this embodiment, as shown in Figure 31, the entire outer shell C10 of the charger is a flat rectangle, including two symmetrical first bottom walls C11 and second bottom walls C12, and four inner walls around the two bottom walls. The first inner wall C101 and the second inner wall C102 are two adjacent side walls. The conversion component C40 is arranged in an L-shape along the first inner wall C101 and the second inner wall C102 in the first receiving cavity. Thus, the L-shaped arrangement forms a semi-enclosed space. Preferably, the telescopic cable module C20 is set as a rectangle, so that the conversion component C40 achieves a semi-enclosed arrangement of the telescopic cable module C20, effectively reducing the volume occupied by the two after combination.

[0538] Optionally, the conversion component C40 includes a main board C100 and a transformer element C100a disposed on the main board C100. Based on this, the L-shaped arrangement of the conversion component C40 is as follows:

[0539] The motherboard C100 includes a first arm C1001 and a second arm C1002. Optionally, the first arm C1001 is the longer portion of the circuit board shown in Figures 36 and 37, and the second arm C1002 is the shorter portion of the circuit board shown in Figures 36 and 37. Thus, the two mutually perpendicular circuit boards form an L-shaped circuit board structure. The first arm C1001 and the second arm C1002 can be used to house electronic components. For example, a larger transformer component C100a can be placed on the longer first arm C1001, and smaller components can be placed on the shorter second arm C1002. This not only makes efficient use of the circuit board space to house electronic components of different sizes but also effectively avoids the retractable cable module C20.

[0540] For example, Example 10.

[0541] The outer casing C10 includes a first inner wall C101, a second inner wall C102, and a third inner wall (not shown in the figure); the third inner wall and the first inner wall C101 are disposed opposite to each other, and the second inner wall C102 is connected to the first inner wall C101 and the third inner wall respectively; the conversion component C40 is arranged in a U-shape along the first inner wall C101, the second inner wall C102, and the third inner wall in the first receiving cavity, and the outlet of the telescopic cable module C20 is away from the first inner wall C101, the second inner wall C102, and the third inner wall.

[0542] In this embodiment, the outer shell C10 is arranged in the same way as in embodiment 9 above. The second inner wall C102 and the third inner wall are two side walls respectively located at both ends of the first inner wall C101, and the second inner wall C102 and the third inner wall are symmetrical to each other. As a result, the conversion component C40 is arranged in a U-shape along the first inner wall C101, the second inner wall C102 and the third inner wall in the first receiving cavity, thus forming a fully enclosed space. Preferably, the telescopic cable module C20 is set as a rectangle, so that the conversion component C40 achieves a fully enclosed arrangement of the telescopic cable module C20, effectively reducing the volume occupied by the two after combination.

[0543] Optionally, the conversion component C40 includes a main board C100 and a transformer element C100a disposed on the main board C100. Based on this, the U-shaped arrangement of the conversion component C40 is as follows.

[0544] The motherboard C100 includes a first arm C1001 and two second arms C1002. Optionally, the first arm C1001 is the longer part of the motherboard C100, and the two second arms C1002 are respectively located at both ends of the motherboard C100 and are the shorter parts.

[0545] Thus, the three-part motherboard C100 forms a U-shaped circuit board structure. The first arm C1001 and the second arm C1002 can be used to set up electronic components. For example, the larger transformer component C100a can be placed on the longer first arm C1001, and other smaller components can be placed on the shorter second arm C1002. This not only makes reasonable use of the space on the circuit board to set up electronic components of different sizes, but also effectively avoids the telescopic cable module C20.

[0546] Furthermore, based on the structure of the motherboard C100 and the functional requirements of the charger, the arrangement of the circuit components included in the conversion unit C40 is discussed in detail below:

[0547] First, the aforementioned transformer component C100a can be specifically configured as a transformer. The function of this transformer is to adjust the first voltage of the power input to a second voltage that adapts to the charging requirements of the terminal device. In the electronic components of a charger, this often occupies a large volume. Therefore, the following solution is adopted:

[0548] As shown in Figures 34, 36, 38, and 39, the conversion component C40 further includes: a first sub-board C110, which is inserted into the main board C100. The first side of the first sub-board C110 is connected to the transformer element C100a, and the second side of the first sub-board C110 is close to the side wall of the housing C10. The first side and the second side of the first sub-board C110 are opposite sides.

[0549] In this embodiment, the transformer element C100a is connected to the main board C100 through the first daughter board C110. In this way, the thickness space of the outer shell C10 is fully utilized through the first daughter board C110, and the transformer element C100a is placed on the first daughter board C110 perpendicular to the main board C100, which reduces the space occupied by the transformer element C100a on the main board C100, thereby reducing the area of ​​the main board C100.

[0550] Optionally, after the transformer element C100a processes the first voltage into the second voltage, it needs to be processed by an inductor before the second voltage can be output to the telescopic cable module C20 for charging. The following scheme is adopted for the setting of this inductor element:

[0551] As shown in Figures 34, 36, 38, and 39, the conversion component C40 further includes: a second sub-board C120, which is inserted into the main board C100; the second sub-board C120 is provided with an inductor; the second sub-board C120 is connected to one output terminal of the telescopic cable module C20 through a first wire group, and the second sub-board C120 is connected to the other output terminal of the telescopic cable module C20 through a second wire group.

[0552] Optionally, regarding the scheme of connecting the first conductor group and the second conductor group to the two conductor groups of the telescopic wire module C20 from both sides, please refer to the above description, and it will not be repeated here.

[0553] In this embodiment, an inductor for processing the second voltage is set on the second daughter board C120, making full use of the vertical space and the thickness space of the charger to set the inductor, further reducing the size of the motherboard C100.

[0554] Optionally, before the first voltage enters the transformer element C100a, the first voltage needs to be filtered, which requires the use of inductors and other components. The following scheme is adopted for the setting of the inductor components.

[0555] As shown in Figures 34, 36, 38, and 39, the conversion component C40 further includes an input component C50, which is used to connect to a power source and input a first voltage. Optionally, the input component C50 can be a plug for connecting to a power source, or other interface capable of obtaining voltage; this embodiment of the application is not limited in this respect. This embodiment of the application uses a plug as an example for illustration, but it is not limited. As shown in Figure 31, the input component C50 can be a foldable plug, or as shown in Figure 32, the input component C50 can be a non-foldable fixed plug.

[0556] Furthermore, the conversion component C40 also includes a third daughter board C130, wherein the third daughter board C130 is inserted into the main board C100; the third daughter board C130 is connected to the input component C50 and the transformer component C100a respectively.

[0557] An inductor is provided on the first surface of the third sub-board C130, and the second surface of the third sub-board C130 is close to the side wall of the housing C10; the first surface and the second surface of the third sub-board C130 are two opposing surfaces.

[0558] In this embodiment, an inductor for processing the first voltage is set on the third daughter board C130, making full use of the vertical space and the thickness space of the charger to set the inductor, further reducing the size of the motherboard C100.

[0559] Furthermore, regarding the specific placement of the first daughterboard C110, the second daughterboard C120, and the third daughterboard C130 on the mainboard C100, the preferred solution is as follows:

[0560] The motherboard C100 includes a first region, a second region, and a third region. A transformer component C100a and a second daughterboard C120 are located in the first region; a third daughterboard C130 is located in the second region; and a capacitor component C140 is located in the third region.

[0561] That is, the first daughter board C110 and the second daughter board C120 are located in the first region, and the third daughter board C130 is located in the second region. When the motherboard C100 is L-shaped, the first region refers to the area where the first arm C1001 is located, and the second region refers to the area where the second arm C1002 is located. When the motherboard C100 is U-shaped, the first region refers to the area where the first arm C1001 and one second arm C1002 are located, and the second region refers to the area where the other second arm C1002 is located. This evenly distributes the three daughter boards on the motherboard C100, which helps to evenly distribute the area of ​​the motherboard C100.

[0562] Based on this, the motherboard C100 also has several capacitor components C140. As is well known, as shown in Figure 34, the length of the capacitor component C140 is generally greater than that of each inductor component. Therefore, the capacitor component C140 cannot be horizontally mounted on the sub-board perpendicular to the motherboard C100 like the inductor components. Therefore, the capacitor component C140 is located at the corner of the motherboard C100, that is, in the third area outside the first and second areas.

[0563] Therefore, by taking advantage of the L-shaped or U-shaped design of the motherboard C100, and making full use of the corner space of the motherboard C100, capacitor components C140 that cannot be placed on the daughterboard can be installed, making the arrangement of electronic components more compact and helping to reduce the size of the charger.

[0564] In summary, the small-volume charger provided in this application includes: a housing defining a first receiving cavity; a conversion component disposed within the first receiving cavity, the conversion component being used to process an input first voltage into a second voltage; and a retractable cable module disposed within the first receiving cavity, the retractable cable module being electrically connected to the conversion component and used to output the second voltage converted by the conversion component; wherein the conversion component at least partially encloses the retractable cable module. To reduce the size of the charger, the conversion component and the retractable cable module are not arranged in a flat, stacked relationship, but rather the conversion component is arranged to at least partially enclose the retractable cable module. This achieves the conversion component's avoidance of the retractable cable module, allowing the conversion component and the retractable cable module to be more compactly arranged within the first receiving cavity enclosed by the housing, thereby reducing the volume of the first receiving cavity and achieving the goal of reducing the charger's size.

[0565] Furthermore, in pursuit of higher integration, greater charging power, and smaller size, chargers face greater challenges in terms of heat dissipation capabilities. Currently, heat sinks are generally used to dissipate heat from the charger's hot parts. However, this method often results in uneven heat dissipation and increases the size of the charger due to the heat sink.

[0566] To address the aforementioned issues, this application provides a charger that facilitates heat dissipation. By optimizing the layout of the heat dissipation structure, both the charger's size and heat dissipation efficiency are considered.

[0567] The details are as follows.

[0568] Please refer to Figures 31, 32, 40 and 41. Figure 40 is an exploded view of one side of the charger provided in the embodiment of this application after removing the outer shell; Figure 41 is an exploded view of another side of the charger provided in the embodiment of this application after removing the outer shell C10.

[0569] The charger provided in this application embodiment facilitates heat dissipation. It includes:

[0570] The outer casing C10 defines a first receiving cavity. Specific embodiments of the outer casing C10 are described above and will not be repeated here.

[0571] The first accommodating cavity is divided into a heat dissipation cavity and a heat generation cavity. The heat generation cavity is used to place at least electronic components that generate heat, and the heat dissipation cavity is used to place at least mechanical components. The heat generation cavity at least partially encloses the heat dissipation cavity.

[0572] The conversion component C40 is disposed in the heating cavity and is used to process the input first voltage into a second voltage.

[0573] The output component is disposed in the heat dissipation cavity and is electrically connected to the conversion component C40. It is used to output the second voltage output by the conversion component C40 to the terminal device being charged.

[0574] In this embodiment, the internal space of the outer casing C10 is divided into two parts: a heating cavity C02 and a heat dissipation cavity C03. The heating cavity C02 houses electronic components that generate high heat, such as the conversion component C40 that generates heat during voltage processing. It is understood that the heating cavity C02 itself inevitably also houses non-heating or low-heating mechanical components, such as the motherboard C100, which is not limited in this embodiment. Furthermore, the heat dissipation cavity C03 houses non-heating or low-heating mechanical devices, such as output components. Optionally, as shown in FIG32, the output component includes the aforementioned retractable cable module C20. These devices generate relatively low heat during operation. Therefore, by at least partially enclosing the heat dissipation cavity C03 with the heating cavity C02, or by setting it as the retractable cable module C20, these devices generate relatively low heat during operation. Thus, by at least partially enclosing the heat dissipation cavity C03 with the heating cavity C02, the high-heating and low-heating parts of the charger can exchange heat sufficiently, allowing the non-heating mechanical devices in the charger to also function as heat sinks, thus achieving a heat dissipation function. Within a limited space, existing components are fully utilized for heat dissipation. Simultaneously, the enclosing relationship between the heating cavity CO2 and the cooling cavity CO3 improves the uniformity of heat dissipation. Thus, without adding additional heat dissipation devices, the charger's heat dissipation efficiency is improved, thereby balancing the charger's charging size and heat dissipation efficiency.

[0575] Furthermore, in order to further improve the heat dissipation efficiency of the radiator, the embodiments of this application provide the following preferred solutions.

[0576] As shown in Figure 40:

[0577] The projected area of ​​the conversion component C40 along the first direction C1b is smaller than the projected area of ​​the output component along the first direction C1b. Optionally, the largest component in the conversion component C40 is the transformer element C110a, and the output component is the telescopic cable module C20, as shown in Figure 40. The first direction C1b is the vertical direction. In this direction, the area of ​​the telescopic cable module C20 is larger, so the heat sink has a larger heat dissipation area.

[0578] The projected area of ​​the conversion component C40 along the second direction C1c is larger than the projected area of ​​the output component along the second direction C1c. Optionally, the largest component in the conversion component C40 is the transformer element C110a, and the output component is the telescopic cable module C20, as shown in Figure 40. The second direction C1c is horizontal, and the first direction C1b is perpendicular to the second direction C1c. In this direction, the transformer element C110a has a larger area, so that more of the heat generated by the transformer element C110a during operation can be conducted to the telescopic cable module C20, facilitating its heat dissipation.

[0579] Understandably, the second direction C1c introduced in Figures 31-46 can also be referred to as the "fifth direction".

[0580] It is worth noting that, as shown in Figures 31 and 40, the charger's outer casing C10 is a flat rectangle, including a first bottom wall C11 and a second bottom wall C12 positioned opposite each other. The areas of the first bottom wall C11 and the second bottom wall C12 are significantly larger than the four side walls. Therefore, when plugging or unplugging the charger, the user typically holds the first bottom wall C11 and the second bottom wall C12. Through this design, the retractable cable module C20 has a larger area in the first direction C1b, i.e., on the first bottom wall C11 and the second bottom wall C12, resulting in higher heat dissipation efficiency. This ensures that the user is in contact with cooler parts when plugging, unplugging, or holding the charger, preventing burns and enhancing safety.

[0581] Furthermore, based on the above solution, the charger provided in this application embodiment can be further equipped with heat dissipation components. These heat dissipation components accelerate the heat conduction between the heating cavity CO2 and the heat dissipation cavity CO3, thereby improving the heat dissipation efficiency of the heat dissipation cavity CO3. At the same time, these heat dissipation components can also effectively guide heat to dissipate into the air, thereby playing a combined heat dissipation role.

[0582] For ease of understanding, the following is a detailed explanation.

[0583] As shown in Figures 40 and 41, the charger for easy heat dissipation provided in this application embodiment further includes: a heat dissipation component, the first part of which is disposed in the heating cavity C02 and abuts against the conversion component C40; the second part of which is disposed in the heat dissipation cavity C03, and the heat dissipation component is at least used to conduct heat in the heating cavity C02 to the heat dissipation cavity C03.

[0584] In this embodiment, the heat dissipation component abuts against the conversion component C40 and the heat dissipation cavity C03 respectively. Thus, the heat generated by the conversion component C40 during voltage conversion is conducted to the heat dissipation cavity C03 by the heat dissipation component, achieving rapid heat conduction and accelerating heat dissipation in the heat dissipation cavity C03. Simultaneously, the heat dissipation component can also dissipate heat into the air while conducting heat, thus achieving a heat dissipation effect.

[0585] Furthermore, in conjunction with the specific structure of the aforementioned telescopic cable module C20, the telescopic cable module C20 includes a first sub-shell C31, a second sub-shell C32, and a cable winding assembly. The preferred implementation of the heat dissipation component in this application embodiment is as follows.

[0586] Please refer to Figures 40 to 43, wherein Figure 42 is a cross-sectional schematic diagram of the charger provided in the embodiment of this application, and Figure 43 is a cross-sectional view of the charger in Figure 42.

[0587] Preferred embodiments of the heat dissipation component in this application include:

[0588] The first heat sink C210 has a first part disposed in the heating cavity C02 and abuts against the conversion component C40, and a second part disposed in the heat sink C03 and abuts against the first sub-shell C31.

[0589] The second heat sink C220 has a first part disposed in the heating cavity C02 and abuts against the conversion component C40, and a second part disposed in the heat sink C03 and abuts against the second sub-shell C32.

[0590] In this embodiment, two heat sinks abut against the heating cavity C02 and the heat dissipation cavity C03 from both sides (i.e., the first bottom wall C11 and the second bottom wall C12 of the outer casing C10), respectively. Specifically, they conduct heat by abutting against the telescopic wire module C20, including the first sub-shell C31 and the second sub-shell C32. Simultaneously, the first heat sink C210 and the second heat sink C220 themselves have heat dissipation functions. Therefore, the temperature of the first bottom wall C11 and the second bottom wall C12 is effectively reduced, improving the overall heat dissipation efficiency.

[0591] Furthermore, to ensure that the retractable cable module C20 does not increase its size while maintaining heat dissipation capacity, a partition plate C33 is further provided. Specifically, the cable winding assembly includes a first cable group C21 and a second cable group C22. A partition plate C33 is provided between the first cable group C21 and the second cable group C22. The partition plate C33 divides the second receiving cavity into a first sub-cavity for receiving the first cable group C21 and a second sub-cavity for receiving the second cable group C22.

[0592] The specific implementation methods and technical effects of the above solutions are described in the foregoing embodiments, and will not be repeated here.

[0593] The first heat sink C210 and the second heat sink C220 dissipate heat from the two bottom walls of the charger to further improve heat dissipation efficiency. As shown in Figures 40 to 42, the heat dissipation component also includes a third heat sink C230, which is disposed in the heating cavity C02 and located between the first heat sink C210 and the second heat sink C220.

[0594] As a result, the third heat sink C230 provides supplementary heat dissipation between the first heat sink C210 and the second heat sink C220. In some embodiments, the third heat sink C230 can also act as a heat conductor between the first heat sink C210 and the second heat sink C220, further promoting the uniform distribution of heat.

[0595] Furthermore, as described above, the conversion component C40 includes a main board C100, a first daughter board C110, a second daughter board C120, a third daughter board C130, a transformer component C110a disposed on the first daughter board C110, and inductor components disposed on the second daughter board C120 and the third daughter board C130. The specific configuration is as shown above and will not be repeated here.

[0596] It should be noted that by independently placing the heat-generating electronic components on different daughterboards, it is also beneficial to disperse the heat sources and prevent heat accumulation caused by placing multiple heat-generating components in the same location. At the same time, this dispersed arrangement is also more conducive to efficient heat dissipation.

[0597] Based on this, the heat dissipation component further includes a third heat dissipation component C230 and a fourth heat dissipation component C240. In conjunction with the specific structure of the aforementioned conversion component C40, the cooperation relationship of the heat dissipation components is discussed as follows.

[0598] As shown in Figures 40 to 42, the first sub-board C110 is inserted into the main board C100. The first side of the first sub-board C110 is connected to the transformer component C110a, and the second side of the first sub-board C110 abuts against the third heat sink C230. The first side and the second side of the first sub-board C110 are opposite sides.

[0599] In this embodiment, the transformer element C110a disposed on the first sub-board C110 is one of the main heat sources. Therefore, a third heat sink C230 is disposed on the back of the first sub-board C110 for separate heat dissipation. The heat source is dispersed by the first sub-board C110, and the isolated heat source is specifically cooled by the third heat sink C230.

[0600] As shown in Figures 40 to 42, the second sub-board C120 is inserted into the main board C100; the second sub-board C120 is provided with an inductor; the second sub-board C120 is located between the first heat sink C210 and the second heat sink C220; the second sub-board C120 is connected to the output component through a first wire group to transmit a second voltage; the first wire group abuts against at least one of the first heat sink C210 or the second heat sink C220.

[0601] In this embodiment, as described above, the second sub-board C120 is a circuit board connected between the transformer element C110a and the telescopic cable module C20, used to process the transformed second voltage. The inductor on the second sub-board C120 generates heat during operation. Simultaneously, the first and second wire groups inevitably generate some heat during the transmission of electrical power. Therefore, the second sub-board C120 is positioned between the first heat sink C210 and the second heat sink C220. The first wire group abuts against at least one of the first heat sink C210 or the second heat sink C220. Thus, the first and second heat sinks act as heat-conducting components between the transformer element C110a and the telescopic cable module C20, simultaneously dissipating heat from the second sub-board C120 and the wire groups along the path. This fully utilizes the heat dissipation structure and improves heat dissipation efficiency.

[0602] As shown in Figure 31, the third sub-board C130 and the heat dissipation component also include a fourth heat dissipation component C240, wherein: the third sub-board C130 is inserted into the main board C100; the third sub-board C130 is connected to the input component and the transformer component C110a respectively; an inductor is provided on the first surface of the third sub-board C130, and the fourth heat dissipation component C240 ​​abuts against the second surface of the third sub-board C130; the first surface and the second surface of the third sub-board C130 are two opposing surfaces.

[0603] In this embodiment, the third daughter board C130 is a filter circuit board between the first voltage input transformer element C110a, which generates heat. Therefore, a fourth heat sink C240 ​​is provided on the back of the third daughter board C130 for separate heat dissipation. The third daughter board C130 disperses the heat source, while the fourth heat sink C240 ​​provides targeted heat dissipation for the isolated heat source.

[0604] Preferably, in order to reduce the impact of the heat dissipation components on the volume, and at the same time maximize the contact between the heat dissipation components and the air to facilitate heat dissipation, the first heat dissipation component C210, the second heat dissipation component C220, the third heat dissipation component C230 and the fourth heat dissipation component C240 ​​provided in the embodiments of this application are graphene heat dissipation sheets or metal heat dissipation sheets, respectively.

[0605] Preferably, since the first heat sink C210 is located on the back of the motherboard C100 and has low heat, a metal heat sink with weak heat dissipation and thermal conductivity is used. For other parts with higher heat generation, the second heat sink C220, the third heat sink C230 and the fourth heat sink C240 ​​are respectively set as graphene heat sinks with stronger heat dissipation and thermal conductivity.

[0606] Preferably, the graphene heat sink provided in this embodiment includes a thermally conductive silicone pad C201 and a graphene aluminum foil C202 attached to the outside of the thermally conductive silicone pad C201. In this way, the thermal conductivity of the heat dissipation component is improved by the thermally conductive silicone pad C201, which is beneficial for conducting heat from the heating cavity CO2 to the heat dissipation cavity CO3, and also beneficial for introducing heat from the inside to the graphene aluminum foil C202 on the outside, thereby improving the heat dissipation efficiency.

[0607] Furthermore, the metal heat sink includes an insulating sheet C203 and a heat-dissipating copper sheet C204 attached to the outside of the insulating sheet C203. In this way, the insulating sheet C203 prevents potential leakage problems, while the heat-dissipating copper sheet C204 achieves heat dissipation.

[0608] In summary, the heat-dissipating charger provided in this application includes a housing that defines a first receiving cavity. Specific embodiments of this housing can be found above and will not be repeated here.

[0609] The first receiving cavity houses a conversion component that generates heat during operation, and an output component that generates less heat than the conversion component. The conversion component encloses a heating cavity, and the output component is at least partially disposed within the heating cavity. The conversion component includes a transformer element. The output component is electrically connected to the transformer element for supplying power to the electronic device being charged. This allows for sufficient heat exchange between the heat-generating and low-heat-generating components in the charger, enabling the low-heat-generating components to also function as heat sinks, thus achieving heat dissipation. Within a limited space, existing components are fully utilized for heat dissipation. Simultaneously, the enclosed relationship between the heating and cooling cavities improves the uniformity of heat dissipation, thereby balancing the charger's charging volume and heat dissipation efficiency.

[0610] The first receiving cavity is divided into a heat dissipation cavity and a heat dissipation cavity. The heat dissipation cavity is used to house at least electronic components that generate heat, and the heat dissipation cavity is used to house at least mechanical components. The heat dissipation cavity at least partially encloses the heat dissipation cavity. A conversion component is disposed in the heat dissipation cavity and is used to process the input first voltage into a second voltage. An output component is disposed in the heat dissipation cavity and is electrically connected to the conversion component to output the second voltage output by the conversion component to the terminal device being charged. By at least partially enclosing the heat dissipation cavity with the heat dissipation cavity, the heat-generating parts of the charger can fully exchange heat with the non-heat-generating parts, allowing the non-heat-generating mechanical components in the charger to also function as heat sinks, thus achieving a heat dissipation function. Within a limited space, existing components are fully utilized for heat dissipation, improving the charger's heat dissipation efficiency without adding additional heat dissipation devices, thereby balancing the charger's charging volume and heat dissipation efficiency.

[0611] A charger is a device that provides electrical power to various electronic devices (also known as "terminal devices"). For faster charging and faster replenishment, users expect chargers with higher power output. For portability and ease of use, users expect chargers to be smaller.

[0612] The pursuit of higher charging power and smaller size in chargers presents a greater challenge to their heat dissipation capabilities. Currently, heat sinks, such as heat dissipation fins, are generally used to dissipate heat from the charger's hot parts. However, this approach has the following two problems:

[0613] 1. Uneven heat dissipation: The radiator can only dissipate heat locally, resulting in areas with radiators having lower temperatures and areas without radiators having higher temperatures. The heat dissipation effect is not ideal, and the user experience is poor.

[0614] 2. Increased size: In order to achieve uniform heat dissipation, multiple heat sinks are set on the charger. Although the problem of uniform heat dissipation is solved, it inevitably leads to an increase in the size of the charger.

[0615] Therefore, in order to solve the above problems, this application can utilize the charger in the above embodiments and make the charger easy to dissipate heat. By improving the heat dissipation structure inside the charger, the technical problem that the current charger cannot balance heat dissipation efficiency and size is solved.

[0616] It should be noted that the space enclosed by the second cavity is the heat dissipation cavity C03, and the space in the first cavity C01 other than the second cavity is the heat generation cavity C02.

[0617] Furthermore, in conjunction with the specific structure of the telescopic cable module C20, this application embodiment provides a preferred implementation of the heat dissipation component as follows.

[0618] Optionally, as shown in Figure 33, the ends of the first wire group C21 and the second wire group C22 are respectively provided with a first output connector C21d (e.g., a plug) and a second output connector 22d (e.g., a plug). Therefore, the interface types of the first output connector C21d (e.g., a plug) and the second output connector 22d (e.g., a plug) can be the same or different, such as either a Lightning interface or a Type-C interface. During use, the user can pull the plug out along direction 1a to select the desired interface type.

[0619] In this embodiment, as shown in FIG33, the inner shell has a first sub-shell C31 and a second sub-shell C32. The first sub-shell C31 and the second sub-shell C32 are respectively connected to the partition plate C33 from both sides. The specific connection method can be different, such as snap-fit, adhesive, or screw-fit, which is not limited in this embodiment. Thus, one side of the partition plate C33 and the first sub-shell C31 form a first sub-cavity, and the other side of the partition plate C33 and the second sub-shell C32 form a second sub-cavity. The first wire group C21 is disposed in the first sub-cavity; the second wire group C22 is disposed in the second sub-cavity.

[0620] Further, optionally, the conversion component C40 includes a motherboard C100 and a transformer element C110a. The motherboard C100 is located inside the first sub-shell C31, and its first side abuts against the first heat sink C210, allowing the heat sink C210 to dissipate heat from the motherboard. The transformer element C110a is located on the second side of the motherboard, with one end abutting against the second heat sink C220. The first and second sides of the motherboard C100 are opposite sides. This achieves heat dissipation from both sides of the motherboard C100.

[0621] Optionally, the conversion component C40 further includes: a first sub-board C110, a second sub-board C120, and a third sub-board C130, wherein a transformer element C110a is disposed on the first sub-board C110, and inductors are disposed on the second sub-board C120 and the third sub-board C130.

[0622] In some embodiments, the conversion component C40 may be a transformer module, or may include a transformer module.

[0623] In some embodiments, the transformer element C100a may be a transformer, or may include a transformer.

[0624] Please refer to Figures 31 to 39. As shown in Figure 32, the small-volume charger provided in this embodiment includes a conversion component C40, such as a transformer module, which includes a transformer element C100a, such as a transformer. The transformer element C100a is used to convert the voltage value so that the voltage is adapted to the charging requirements of the terminal device.

[0625] The telescopic cable module C20 is electrically connected to the conversion component C40, such as a transformer module, for outputting the voltage converted by the transformer element C100a, such as a transformer.

[0626] Among them, the conversion component C40, for example, the transformer module, at least partially encloses the telescopic line module C20.

[0627] In this embodiment, in order to reduce the size of the charger, the conversion component C40, such as the transformer module and the retractable cable module C20 are not arranged in a flat or stacked manner. Instead, the conversion component C40, such as the transformer module, is arranged to at least partially wrap around the retractable cable module C20. In this way, the conversion component C40, such as the transformer module, avoids the retractable cable module C20, so that the conversion component C40, such as the transformer module and the retractable cable module C20 can be arranged more compactly within the first receiving cavity enclosed by the outer shell C10, thereby reducing the volume of the first receiving cavity and achieving the purpose of reducing the size of the charger.

[0628] It should be noted that the specific implementation of the conversion component C40, such as the transformer module wrapping the telescopic cable module C20, is not limited in the embodiments of this application. For ease of understanding, preferred embodiments are provided as follows:

[0629] For example, Example 11.

[0630] As shown in Figures 31, 36, and 37, the outer casing C10 includes a first inner wall C101 and a second inner wall C102, wherein: the first inner wall C101 and the second inner wall C102 are connected, and the conversion component C40, such as a transformer module, is arranged in an L-shape along the first inner wall C101 and the second inner wall C102 within a first receiving cavity; the outlet of the telescopic cable module C20 is away from the first inner wall C101 and the second inner wall C102. Optionally, as shown in Figure 32, the outlet of the telescopic cable module C20 is provided with a receiving groove C10b, in which the first output connector C21d (e.g., a plug) and the second output connector 22d (e.g., a plug) of the telescopic cable module C20 are stored. When in use, the user pulls out the required plug along direction 1a in Figure 32.

[0631] In this embodiment, as shown in FIG31, the conversion component C40, such as the transformer module, is arranged in an L-shape along the first inner wall C101 and the second inner wall C102 in the first receiving cavity. Thus, the L-shaped arrangement forms a semi-enclosed space. Preferably, the telescopic cable module C20 is set as a rectangle, so that the conversion component C40, such as the transformer module, achieves a semi-enclosed arrangement of the telescopic cable module C20, effectively reducing the volume occupied by the two after combination.

[0632] Optionally, the conversion component C40, such as a transformer module, includes a main board C100 and a transformer element C100a, such as a transformer, disposed on the main board C100. Based on this, the L-shaped arrangement of the conversion component C40, such as the transformer module, is as follows.

[0633] For example, Example 12.

[0634] The conversion component C40, such as the transformer module, is arranged in a U-shape within the first receiving cavity along the first inner wall C101, the second inner wall C102, and the third inner wall. The outlet of the telescopic cable module C20 is away from the first inner wall C101, the second inner wall C102, and the third inner wall.

[0635] In this embodiment, the conversion component C40, such as the transformer module, is arranged in a U-shape along the first inner wall C101, the second inner wall C102, and the third inner wall within the first receiving cavity, thereby forming a fully enclosed space. Preferably, the telescopic cable module C20 is set as a rectangle, so that the conversion component C40, such as the transformer module, achieves a fully enclosed arrangement of the telescopic cable module C20, effectively reducing the volume occupied by the two after combination.

[0636] Optionally, the conversion component C40, such as a transformer module, includes a main board C100 and a transformation element C100a, such as a transformer, disposed on the main board C100. Based on this, the U-shaped arrangement of the conversion component C40, such as the transformer module, is as follows.

[0637] Thus, the three-part motherboard C100 forms a U-shaped circuit board structure. The first arm C1001 and the second arm C1002 can be used to set up electronic components. For example, a larger transformer component C100a, such as a transformer, can be placed on the longer first arm C1001, while other smaller components can be placed on the shorter second arm C1002. This not only makes reasonable use of the circuit board space to set up electronic components of different sizes, but also effectively avoids the telescopic cable module C20.

[0638] Furthermore, based on the structure of the motherboard C100 described above, and in conjunction with the functional requirements of the charger, the arrangement of the various circuit components included in the conversion component C40, such as the transformer module, is discussed in detail below:

[0639] As shown in Figures 34, 36, 38, and 39, the conversion component C40, for example, the transformer module, further includes: a first sub-board C110, which is inserted into the main board C100. The first side of the first sub-board C110 is connected to the transformer element C100a, for example, a transformer, and the second side of the first sub-board C110 is close to the side wall of the housing C10. The first side and the second side of the first sub-board C110 are opposite sides.

[0640] In this embodiment, the transformer component C100a, such as a transformer, is connected to the main board C100 through the first sub-board C110. In this way, the thickness space of the outer casing C10 is fully utilized through the first sub-board C110, and the transformer component C100a, such as a transformer, is placed on the first sub-board C110 perpendicular to the main board C100, thereby reducing the space occupied by the transformer component C100a, such as a transformer, on the main board C100, and thus reducing the area of ​​the main board C100.

[0641] Optionally, after the transformer element C100a, for example, processes the first voltage into the second voltage, it needs to be processed by an inductor element before the second voltage can be output to the telescopic cable module C20 for charging. The following scheme is adopted for the setting of this part of the inductor element.

[0642] As shown in Figures 34, 36, 38, and 39, the conversion component C40, such as the transformer module, further includes: a second sub-board C120, which is inserted into the main board C100; the second sub-board C120 is provided with an inductor; the second sub-board C120 is connected to one output terminal of the telescopic cable module C20 through a first wire group, and the second sub-board C120 is connected to the other output terminal of the telescopic cable module C20 through a second wire group.

[0643] Optionally, before the first voltage enters the transformer element C100a, such as a transformer, the first voltage needs to be filtered, which requires the use of inductors and other components. The following scheme is adopted for the setting of the inductor components.

[0644] As shown in Figures 34, 36, 38, and 39, the conversion component C40, such as a transformer module, further includes an input component C50. The input component C50 is used to connect to a power source and input a first voltage. Optionally, the input component C50 can be a plug for connecting to a power source, or other interface capable of obtaining voltage; this embodiment of the application is not limited in this regard. This embodiment of the application uses a plug as an example for illustration, but it is not limited. As shown in Figure 31, the input component C50 can be a foldable plug, or as shown in Figure 32, the input component C50 can be a non-foldable fixed plug.

[0645] Furthermore, the conversion component C40, such as the transformer module, also includes a third sub-board C130, wherein: the third sub-board C130 is inserted into the main board C100; the third sub-board C130 is connected to the input component C50 and the transformer element C100a, such as a transformer.

[0646] Transformer element C100a, such as a transformer, and second sub-board C120 are located in the first area; third sub-board C130 is located in the second area; and capacitor element C140 is located in the third area.

[0647] Optionally, in this embodiment of the application, the telescopic line module is configured as a dual telescopic line module, and its specific implementation is described in detail below.

[0648] As shown in Figure 33, the telescopic cable module C20 includes a first sub-shell C31, a second sub-shell C32, and a cable winding assembly. The first sub-shell C31 and the second sub-shell C32 define a second receiving cavity, and the cable winding assembly is disposed in the second receiving cavity.

[0649] In summary, the small-volume charger provided in this application includes: a housing defining a first receiving cavity; a transformer module disposed within the first receiving cavity, the transformer module including a transformer; and a retractable cord module disposed within the first receiving cavity, the retractable cord module being electrically connected to the transformer module for outputting the voltage of the transformer; wherein the transformer module at least partially encloses the retractable cord module. To reduce the charger's size, the transformer module and the retractable cord module are not arranged in a flat, stacked relationship, but rather the transformer module is positioned to at least partially enclose the retractable cord module. This achieves avoidance of the retractable cord module by the transformer module, allowing them to be more compactly arranged within the first receiving cavity enclosed by the housing, thereby reducing the volume of the first receiving cavity and achieving the goal of reducing the charger's size.

[0650] In the description of this specification, the references to terms such as "an embodiment," "some embodiments," "illustrative embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that 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.

[0651] The terms "first," "second," "third," "fourth," etc. (if applicable) in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments described herein can be implemented in a sequence other than that illustrated or described herein.

[0652] It should also be noted that, in the description of this specification, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

[0653] In the description of this application, "several" means one or more, "multiple" means two or more, "greater than", "less than", "exceeding" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself.

[0654] Furthermore, the terms “comprising” and “having”, and any variations thereof, are intended to cover non-exclusive inclusion, such that a process, method, system, product, or apparatus that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may also include other steps or units that are not explicitly listed or that are inherent to such processes, methods, products, or apparatus.

[0655] Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0656] The embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this application.

Claims

1. A data cable device, characterized in that, include: Elastic components; First winding component; The second winding member is rotatably connected to the first winding member; The first cable is used to be wound around the first winding member; The second cable is used to be wound around the second winding member; The elastic element is connected to the first winding element and the second winding element respectively to provide a first rotational force to the first winding element to retract the first cable, and / or to provide a second rotational force to the second winding element to retract the second cable; Alternatively, the elastic element is connected to the first winding element to provide a first rotational force to the first winding element to retract the first cable; Alternatively, the elastic element can be connected to the second winding element to provide a second rotational force to the second winding element to retract the second cable.

2. The data cable device according to claim 1, characterized in that, One end of the elastic element is connected to the first winding element, and the other end of the elastic element is connected to the second winding element; the elastic element is spirally wound.

3. The data cable device according to claim 2, characterized in that, The directions of the first rotational force and the second rotational force are different, the retraction direction of the first cable and the retraction direction of the second cable are different, and the winding direction of each segment of the elastic element is the same.

4. The data cable device according to claim 2, characterized in that, The direction of the first rotational force is the same as the direction of the second rotational force, and the direction of the first cable retraction is the same as the direction of the first cable retraction; the elastic element includes a folding region; the portion of the elastic element located between one end of the elastic element and the folding region is coiled in a first direction, and the portion of the elastic element located between the other end of the elastic element and the folding region is coiled in a second direction; wherein, the first direction and the second direction are opposite.

5. The data cable device according to claim 1, characterized in that, The elastic element is arranged in a disc-like coiled configuration. One end of the elastic element on the outer side is connected to the first winding element, and the other end of the elastic element on the inner side is connected to the second winding element.

6. The data cable device according to claim 1, characterized in that, The first end of the first cable and the first end of the second cable are electrically connected.

7. The data cable device according to claim 6, characterized in that, The data cable device further includes: The first adapter is disposed at the end of the first winding member facing the second winding member and is electrically connected to the first cable; The second adapter is disposed at the end of the second winding member facing the first winding member and is electrically connected to the second cable; One of the first adapter and the second adapter is provided with an annular conductive groove, and the other of the first adapter and the second adapter is provided with a conductive protrusion. The conductive protrusion is inserted into the annular conductive groove and can slide within the annular conductive groove.

8. The data cable device according to claim 6, characterized in that, The data cable device further includes: The housing has a receiving cavity and a first opening and a second opening communicating with the receiving cavity; the first winding member is rotatably disposed within the housing; the second winding member is rotatably disposed within the housing and is axially spaced from the first winding member. The second end of the first cable passes through the first opening and is located outside the housing; the second end of the second cable passes through the second opening and is located outside the housing.

9. The data cable device according to claim 1, characterized in that, The data cable device further includes: The housing has a receiving cavity and a first opening, a second opening, a third opening and a fourth opening communicating with the receiving cavity; the first winding member is rotatably disposed within the housing; the second winding member is rotatably disposed within the housing and is axially spaced from the first winding member; The second end of the first cable passes through the first opening and is located outside the housing; the first end of the first cable passes through the third opening and is located outside the housing; the second end of the second cable passes through the second opening and is located outside the housing; the first end of the second cable passes through the fourth opening and is located outside the housing.

10. The data cable device according to claim 1, characterized in that, The data cable device further includes: case; A connecting shaft is rotatably connected to the housing; the first winding member is rotatably connected to the connecting shaft, and the second winding member is fixedly connected to the connecting shaft; The first winding member and the second winding member are coaxially arranged, and the elastic member is connected to the first winding member and the connecting shaft respectively.

11. The data cable device according to claim 10, characterized in that, The first winding member has a mounting groove at one end facing away from the second winding member; the elastic element is disposed in the mounting groove.

12. The data cable device according to claim 11, characterized in that, The data cable device further includes: The first positioning element is disposed at the opening of the mounting groove; The first limiting member is movably disposed in the housing and cooperates with the first positioning member to limit the rotational position of the first winding member.

13. The data cable device according to claim 10, characterized in that, The first winding member has a first through hole; the data line device further includes: A first positioning element is disposed at the end of the first winding element opposite to the second winding element; the first positioning element has a second through hole; A first limiting member is disposed on the housing and cooperates with the first positioning member to limit the rotational position of the first winding member; The second positioning element is disposed at the end of the second winding element opposite to the first winding element; the second positioning element has a third through hole; The second limiting member is movably disposed in the housing and cooperates with the second positioning member to limit the rotational position of the second winding member; One end of the connecting shaft passes through the first through hole and the second through hole and is rotatably connected to the housing; the other end of the connecting shaft passes through the third through hole and is rotatably connected to the housing.

14. The data cable device according to claim 13, characterized in that, The data cable device further includes: The first adapter is disposed at the end of the first winding member facing the second winding member and is electrically connected to the first cable; The second adapter is disposed at the end of the second winding member facing the first winding member and is electrically connected to the second cable; the second adapter and the first adapter are electrically connected.

15. The data cable device according to claim 14, characterized in that, The first adapter is a ring structure, and the second adapter is a ring-shaped structure; The first winding member forms a first cylindrical portion on the periphery of the first through hole, and the first cylindrical portion passes through the first through hole defined by the first adapter member. One end of the connecting shaft passes through the second through hole defined by the second adapter; the end face of the first cylindrical part contacts the second adapter, and the first winding member is axially confined between the second adapter and the housing.

16. The data cable device according to claim 14, characterized in that, The portion of the first winding member facing the second winding member is recessed to form a receiving groove; at least a portion of the first adapter is located within the receiving groove; the first adapter is provided with a conductive protrusion, and the second adapter is provided with an annular conductive groove. The conductive protrusion extends out of the receiving groove and is inserted into the annular conductive groove.

17. The data cable device according to any one of claims 1-16, characterized in that, The data cable device further includes: case; The second positioning element is disposed at the end of the second winding element that is opposite to the first winding element; The second limiting member is movably disposed in the housing and cooperates with the second positioning member to limit the rotational position of the second winding member.

18. The data cable device according to any one of claims 1-16, characterized in that, One end of the elastic element is connected to the first winding element, and the other end of the elastic element is connected to the second winding element.

19. The data cable device according to claim 12, characterized in that, The first positioning member has a first inner annular slide, a first outer annular slide, a first sliding in channel, a first sliding out channel, and a first slot on the end face opposite to the first winding member; the first inner annular slide and the first outer annular slide are radially spaced apart from each other on the first winding member; the first sliding in channel communicates with both the first inner annular slide and the first outer annular slide; the first sliding out channel communicates with both the first inner annular slide and the first outer annular slide; the first slot is located at the first sliding in channel; The first limiting member is rotatably disposed on the housing. The first limiting member has a first limiting post, which is used to cooperate with the first slot to limit the rotational position of the first winding member.

20. The data cable device according to claim 17, characterized in that, The second positioning member has a second inner annular slide, a second outer annular slide, a second sliding in channel, a second sliding out channel, and a second slot on the end face opposite to the second winding member; the second inner annular slide and the second outer annular slide are radially spaced apart from each other on the second winding member; the second sliding in channel communicates with both the second inner annular slide and the second outer annular slide; the second sliding out channel communicates with both the second inner annular slide and the second outer annular slide; the second slot is located at the second sliding in channel; The second limiting member is rotatably disposed on the housing. The second limiting member has a second limiting post, which is used to cooperate with the second slot to limit the rotational position of the second winding member.

21. The data cable device according to any one of claims 1-16, characterized in that, The data cable device further includes: A first interface component is connected to the second end of the first cable; The second interface component is connected to the second end of the second cable; The first interface device and the second interface device may have the same or different interface types.

22. The data cable device according to claim 21, characterized in that, The data cable device further includes: a housing, the outer side of which is provided with a first storage slot and a second storage slot, the first storage slot being used to store the first interface component, and the second storage slot being used to store the second interface component; and / or, The data cable device further includes: a first adsorption member and a second adsorption member disposed on the housing; the first adsorption member is used to connect with the first interface member, and the second adsorption member is used to connect with the second interface member.

23. The data cable device according to any one of claims 1-7, characterized in that, The data cable device further includes: a main body and at least two charging connectors, wherein the at least two charging connectors include: A first interface component is connected to the second end of the first cable; The second interface component is connected to the second end of the second cable; The main body has a storage slot for accommodating at least two charging connectors. The charging connectors are arranged side by side in the storage slot. A fixing component is provided at the bottom of the storage slot for fixing the charging connectors.

24. The data cable device according to claim 23, characterized in that, The fixing component includes a first magnetic element, and the number of the first magnetic elements corresponds to the number of the charging connectors; And / or, the charging connector has a second magnetic member corresponding to the first magnetic member, and the first magnetic member and the second magnetic member cooperate to fix the charging connector.

25. The data cable device according to claim 23, characterized in that, The main body includes a side cover and a side shell. The side shell is used to form the bottom of the storage groove. The side cover has a first opening and an annular wall arranged along the edge of the first opening. The annular wall cooperates with the side shell to form the storage groove. A wire inlet and outlet are provided at the junction of the annular wall and the side shell. The first cable and / or the second cable are used to pass through the wire inlet and outlet.

26. The data cable device according to claim 25, characterized in that, The side shell is provided with a mounting groove on the side facing away from the storage groove, and the mounting groove is used to install the fixing component; And / or, the side cover is provided with a second opening, the second opening being used to form a charging output interface.

27. The data cable device according to claim 25, characterized in that, One side of the side shell is provided with a side insertion part that inserts into the annular wall, and the other side of the side shell is provided with a mounting ear. The mounting ear is provided with a mounting hole, and the mounting hole accommodates a screw connected to the annular wall. The space around the mounting ear is used to form the wire inlet and outlet. And / or, a plug-in structure is provided between the side shell and the annular wall, which plugs in along the vertical direction of the receiving groove.

28. The data cable device according to claim 23, characterized in that, The main body has a plug, the plug and the storage slot are located on opposite sides of the main body, the plug includes rotatable prongs, the prongs are located at the corners of the outer contour of the main body.

29. The data cable device according to claim 28, characterized in that, The plug includes a base, a decorative cover, and a pivot located between the base and the decorative cover. The base is located inside the main body, and the decorative cover is exposed outside the main body. The pins are connected to the ends of the pivot. The radial outer surface of the pivot is provided with a conductive part for connecting the pins. The base is provided with a conductive spring for abutting the conductive part.

30. The data cable device according to claim 23, characterized in that, The data cable device includes a conductor, the conductor being at least one of the first cable and the second cable, and the data cable device includes an inner shell assembly accommodating the first winding member, the second winding member, the conductor, and the elastic member.

31. The data cable device according to claim 30, characterized in that, At least one of the first winding member and the second winding member is axially provided with a telescopic control mechanism for controlling the extension and retraction of the conductor. The telescopic control mechanism includes a balance wheel rotatably connected to the inner shell assembly, an eccentric column disposed on the balance wheel, and a mounting track disposed on at least one of the first winding member and the second winding member. The eccentric column moves along the mounting track to realize the conductor extending to a fixed length and continuously retracting.

32. The data cable device according to claim 31, characterized in that, The set of tracks includes an inner arc track and an outer arc track for sliding the eccentric column, and the inner arc track and the outer arc track are fitted together on the end face of at least one of the first winding member and the second winding member; A control post is provided between the starting point and the ending point of the inner arc-shaped track and the outer arc-shaped track. A guide cone is provided on one side of the control post. The guide cone is used to guide the eccentric post into the outer arc-shaped track or the inner arc-shaped track. The guide cone is used to enable at least one of the first winding member and the second winding member to rotate continuously. A limit recess is provided on the other side of the control post. The limit recess is used to keep at least one of the first winding member and the second winding member stationary to control the length of the wire pulled out.

33. The data cable device according to claim 31, characterized in that, The elastic element includes a coil spring, and at least one of the first winding member and the second winding member is not provided with the other end face of the telescopic control mechanism, but has a coil spring mounting port.

34. The data cable device according to claim 30, characterized in that, At least one of the first winding member and the second winding member has an energizing component on its end face, the energizing component being used to energize the conductor; The energizing component includes a plurality of conductive rails and a plurality of conductive contacts for abutting against the plurality of conductive rails. The conductive rails and the plurality of conductive contacts are arranged in a ring around the rotation center of at least one of the first winding member and the second winding member. One of the conductive rails and the conductive contacts is disposed on at least one of the first winding member and the second winding member, and the other of the conductive rails and the conductive contacts is disposed on the inner shell component.

35. The data cable device according to claim 34, characterized in that, The power-conducting component includes a follower circuit board disposed on at least one of the first winding member and the second winding member, and a fixed circuit board disposed on the inner shell component. The follower circuit board is used to set one of the conductive rail and the conductive contact, and the fixed circuit board is used to set the other of the conductive rail and the conductive contact. And / or, the conductive contacts include a plurality of contact groups arranged in a ring around the rotation center of at least one of the first winding member and the second winding member, the contact groups including a ground pin, two data communication pins, a channel configuration pin and a power supply pin.

36. The data cable device according to any one of claims 1-7, characterized in that, The data cable device includes: The housing assembly includes a first housing portion and a second housing portion arranged along a third direction; A mounting base is disposed between the first shell portion and the second shell portion in the third direction. The mounting base and the first shell portion enclose a first space along a first side in the third direction, and the mounting base and the second shell portion enclose a second space along a second side in the third direction. At least two winding assemblies, at least one of the winding assemblies being housed in the first space, and at least one of the winding assemblies being housed in the second space; The cable winding assembly includes the elastic element, a reel, and a data cable. The reel is rotatable relative to the housing assembly and is used to wind the data cable. One end of the data cable extends out of the housing assembly. Wherein, the wheel core includes the first winding member, and the data line includes the first cable; Alternatively, the wheel core may include the second winding member, and the data line may include the second cable.

37. The data cable device according to claim 36, characterized in that, The mounting base includes a base plate, a first side plate, and a second side plate. The first side plate is disposed along the edge of the base plate and extends toward a first side in a third direction. The second side plate is disposed along the edge of the base plate and extends toward a second side in a third direction. The first side plate is connected to the first shell portion along the third direction, and the second side plate is connected to the second shell portion along the third direction.

38. The data cable device according to claim 36, characterized in that, The mounting base is an integral structure.

39. The data cable device according to claim 36, characterized in that, The mounting base includes a base plate and mounting shafts disposed on both sides of the base plate. The wheel core is sleeved on the outer periphery of the mounting shaft and rotates around the mounting shaft.

40. The data cable device according to claim 36, characterized in that, The wheel core includes a wheel drum, the side wall of which has a locking port. The data cable includes a first end and a second end. The first end extends out of the housing assembly, and the second end extends through the locking port into the interior of the wheel drum and is fixed to the wheel drum.

41. The data cable device according to claim 40, characterized in that, The wheel core includes a wire clamping plate located inside the wheel drum, and the wire clamping plate and the side wall of the wheel drum are arranged radially at intervals to form a wire clamping groove, and the second end of the data cable is located in the wire clamping groove.

42. The data cable device according to claim 41, characterized in that, On a plane perpendicular to the axial direction of the reel drum, the clamping plate is in the shape of an arc concentric with the reel drum.

43. The data cable device according to claim 36, characterized in that, The wheel core includes a wheel drum, and the elastic element includes a coil spring disposed inside the wheel drum to provide a restoring force for the wheel drum to rotate in the direction of retracting the data cable.

44. The data cable device according to claim 43, characterized in that, The mounting base includes a mounting shaft, the wheel drum is sleeved on the mounting shaft, one end of the coil spring is connected to the wheel drum, and the other end of the coil spring is connected to the mounting shaft.

45. The data cable device according to claim 36, characterized in that, The first housing portion has a first cable outlet, which communicates with the first space; the second housing portion has a second cable outlet, which communicates with the second space. The data cable device includes a flexible protective element, which is provided on the edge of the first cable outlet and / or the edge of the second cable outlet.

46. ​​The data cable device according to any one of claims 1-7, characterized in that, The first winding member includes a first reel, and the second winding member includes a second reel; The data cable device includes a housing that defines a first receiving cavity. A telescopic cable module is disposed within the first receiving cavity. The housing has an opening communicating with the first receiving cavity. The telescopic cable module includes: The first wire assembly includes a first winding assembly, a first winding spool, and a first wire, wherein the first wire is wound onto the first winding spool under the processing of the first winding assembly. The second wire assembly includes a second winding assembly, a second winding spool, and a second wire, wherein the second wire is wound onto the second winding spool under the processing of the second winding assembly; Wherein, the first winding assembly includes the elastic element, the second winding assembly includes the elastic element, the first wire includes the first cable, and the second wire includes the second cable; The first wire is used to extend from the opening of the housing in a fourth direction, and the second wire is used to extend from the opening of the housing in the fourth direction.

47. The data cable device according to claim 46, characterized in that, The outer shell includes a first bottom wall and a second bottom wall disposed opposite to each other, and the telescopic wire module is disposed in the receiving space formed by the first bottom wall and the second bottom wall; The data cable device further includes a conversion component for processing the input first voltage into a second voltage, wherein: The conversion component is connected to the first wire group via the first wire group, and the first wire group is disposed between the first bottom wall and the telescopic wire module; The conversion component is connected to the second wire group via the second wire group, which is disposed between the second bottom wall and the telescopic wire module; The first wire group and the second wire group each have an output connector, which is used to output the second voltage.

48. The data cable device according to claim 46, characterized in that, The outer casing includes a first bottom wall and a second bottom wall disposed opposite to each other. The first wire group also includes a first shell. The first shell and the first bottom wall form a first inner cavity. The first wire winding assembly and the first wire winding coil are disposed in the first inner cavity. The second wire assembly also includes a second housing, which forms a second inner cavity with the second bottom wall, and the second winding assembly and the second winding reel are disposed in the first inner cavity.

49. The data cable device according to claim 48, characterized in that, The data cable device further includes a conversion component for processing the input first voltage into a second voltage, wherein: The conversion component is connected to the first wire group via a first wire group and to the second wire group via a second wire group, with the first wire group and the second wire group disposed between the first shell and the second shell.

50. The data cable device according to claim 46, characterized in that, The first wire group includes a first output connector, and the second wire group includes a second output connector; The outer casing has a storage slot, which is connected to the first receiving cavity through the opening. The first output connector and the second output connector are stored in the storage slot.

51. The data cable device according to claim 50, characterized in that, The first output connector is housed in the receiving slot. Along the length direction of the first output connector, the projection of the first output connector is located within the projection of the outer casing. Along the width direction of the first output connector, the projection of the first output connector is located within the projection of the outer casing.

52. The data cable device according to claim 50, characterized in that, The first output connector is housed in the receiving slot. Along the length direction of the first output connector, the projection of the first output connector extends at least partially beyond the projection of the outer shell. Along the width direction of the first output connector, the projection of the first output connector extends at least partially beyond the projection of the outer shell. Along the thickness direction of the first output connector, the projection of the first output connector is located within the projection of the outer shell.

53. The data cable device according to claim 51, characterized in that, The first output connector and the second output connector extend to the same length within the receiving slot; The first output connector and the second output connector are both housed in the storage groove. The ends of the first output connector and the second output connector have a first gap relative to the inner wall of the storage groove. The first gap is greater than or equal to 1 mm and less than or equal to 5 mm.

54. The data cable device according to claim 51, characterized in that, The first output connector and the second output connector are arranged adjacent to each other, and the distance between the first output connector and the second output connector is greater than or equal to 1 mm and less than or equal to 6 mm.

55. The data cable device according to claim 54, characterized in that, A partition is provided between the first output connector and the second output connector. The partition is connected to the storage slot, or the partition is integrated with the storage slot.

56. The data cable device according to claim 51, characterized in that, The storage slot is located on a first side of the outer casing, and a power plug for connecting to a power source is provided on a second side of the outer casing. The first side and the second side are two opposite sides disposed on the outer shell.

57. The data cable device according to claim 56, characterized in that, The extension directions of the first output connector and the second output connector are perpendicular to the extension direction of the power plug, respectively.

58. The data cable device according to claim 56, characterized in that, The first side of the outer casing is also provided with an output port, and the extension direction of the output port is perpendicular to the extension directions of the first output connector and the second output connector, respectively.

59. The data cable device according to claim 58, characterized in that, The output port is located in the storage slot, and the storage slot and the output port are integrated with the outer casing.

60. The data cable device according to claim 51, characterized in that, The first output connector, and / or the second output connector portion protrudes from the opening of the receiving slot, such that the first output connector, and / or the second output connector portion protrudes from the housing.

61. The data cable device according to claim 51, characterized in that, The thickness of the first output connector and / or the second output connector is less than the depth of the receiving slot, so that the first output connector and / or the second output connector are received in the receiving slot.

62. The data cable device according to claim 47, characterized in that, The conversion component at least partially encloses the telescopic cable module.

63. The data cable device according to claim 47, characterized in that, The first accommodating cavity is divided into a heat dissipation cavity and a heat generation cavity. The heat generation cavity is used to place at least electronic components that generate heat, and the heat dissipation cavity is used to place at least mechanical components. The heat generation cavity at least partially encloses the heat dissipation cavity, and the conversion component is disposed in the heat generation cavity.

64. The data cable device according to claim 46, characterized in that, The data cable device further includes: A conversion component is disposed within the first receiving cavity, and the conversion component is used to process the input first voltage into a second voltage; The telescopic cable module is electrically connected to the conversion component and is used to output the second voltage converted by the conversion component. The conversion component at least partially encloses the telescopic line module.

65. The data cable device according to claim 64, characterized in that, The outer shell includes a first inner wall and a second inner wall, wherein: The first inner wall and the second inner wall are connected, and the conversion component is arranged in an L-shape along the first inner wall and the second inner wall in the first receiving cavity; The outlet of the telescopic cable module is far from the first inner wall and the second inner wall.

66. The data cable device according to claim 64, characterized in that, The outer shell includes a first inner wall, a second inner wall, and a third inner wall; wherein: The third inner wall and the first inner wall are disposed opposite to each other, and the second inner wall is connected to the first inner wall and the third inner wall respectively; The conversion components are arranged in a U-shape within the first receiving cavity along the first inner wall, the second inner wall, and the third inner wall, and the outlet of the telescopic cable module is away from the first inner wall, the second inner wall, and the third inner wall.

67. The data cable device according to claim 65 or 66, characterized in that, The conversion component includes a motherboard, which includes a first arm and at least one second arm, the first arm and the second arm forming an enclosing space for enclosing the telescopic wire module.

68. The data cable device according to claim 67, characterized in that, The conversion component further includes: Transformer components; The first daughter board is inserted into the main board. The first side of the first daughter board is connected to the transformer element, and the second side of the first daughter board is close to the side wall of the housing. The first side and the second side of the first sub-plate are opposite sides.

69. The data cable device according to claim 67, characterized in that, The conversion component further includes: A second sub-board is inserted into the main board; the second sub-board is provided with inductor components. The second sub-board is connected to one output end of the telescopic cable module via the first wire group, and the second sub-board is connected to the other output end of the telescopic cable module via the second wire group.

70. The data cable device according to claim 69, characterized in that, It also includes an input component for connecting to a power supply to input the first voltage; the conversion component further includes a transformer element and a third sub-board, wherein: The third daughterboard is inserted into the motherboard; The third sub-board is connected to the input component and the transformer element respectively; An inductor is provided on the first side of the third sub-board, and the second side of the third sub-board is close to the side wall of the outer casing. The first surface and the second surface of the third sub-board are two opposing surfaces.

71. The data cable device according to claim 70, characterized in that, The motherboard includes: a first region, a second region, and a third region, wherein, The transformer element and the second sub-board are located in the first region; The third sub-board is located in the second region; The third region is equipped with a capacitor element.

72. The data cable device according to claim 71, characterized in that, The first region is located on the first arm, the second region is located on the second arm, and the third region is located at the corner where the first arm and the second arm connect.

73. The data cable device according to claim 46, characterized in that, The first accommodating cavity is divided into a heat dissipation cavity and a heat generation cavity. The heat generation cavity is used to place electronic components that generate heat, and the heat dissipation cavity is used to place mechanical components. The heat generation cavity at least partially encloses the heat dissipation cavity. The data cable device includes: A conversion component is disposed in the heating cavity, and the conversion component is used to process the input first voltage into a second voltage; An output component is disposed in the heat dissipation cavity. The output component is electrically connected to the conversion component and is used to output the second voltage output by the conversion component to the terminal device being charged. The output component includes the retractable cable module.

74. The data cable device according to claim 73, characterized in that, The projected area of ​​the conversion component along the fourth direction is smaller than the projected area of ​​the output component along the fourth direction. The projected area of ​​the conversion component along the fifth direction is greater than the projected area of ​​the output component along the fifth direction; wherein the fourth direction is perpendicular to the fifth direction.

75. The data cable device according to claim 73, characterized in that, The data cable device further includes: A heat dissipation component, wherein a first part of the heat dissipation component is disposed in the heating cavity and abuts against the conversion component; a second part of the heat dissipation component is disposed in the heat dissipation cavity, and the heat dissipation component is at least used to conduct heat in the heating cavity to the heat dissipation cavity.

76. The data cable device according to claim 75, characterized in that, The telescopic cable module includes a first housing and a second housing, the first housing and the second housing defining a second receiving cavity, and the cable winding assembly is disposed in the second receiving cavity, the cable winding assembly including a first cable group and a second cable group; The heat dissipation component includes: A first heat sink, a first part of which is disposed in the heating cavity and abuts against the conversion component, and a second part of which is disposed in the heat sink and abuts against the first housing; The second heat sink has a first part disposed in the heating cavity and abuts against the conversion component, and a second part disposed in the heat sink and abuts against the second housing.

77. The data cable device according to claim 76, characterized in that, A partition plate is provided between the first wire group and the second wire group, the partition plate dividing the second receiving cavity into a first sub-cavity for receiving the first wire group and a second sub-cavity for receiving the second wire group.

78. The data cable device according to claim 76, characterized in that, The heat dissipation component further includes a third heat dissipation component, which is disposed in the heating cavity and located between the first heat dissipation component and the second heat dissipation component.

79. The data cable device according to claim 78, characterized in that, The conversion component includes: The motherboard is located inside the first housing, and the first side of the motherboard abuts against the first heat sink. A transformer element is disposed on the second side of the motherboard, with one end of the transformer element abutting against the second heat sink. The first side and the second side of the motherboard are opposite sides.

80. The data cable device according to claim 79, characterized in that, The conversion component further includes: The first daughter board is inserted into the main board, and a first side of the first daughter board is connected to the transformer element, and a second side of the first daughter board abuts against the third heat sink. The first side and the second side of the first sub-plate are opposite sides.

81. The data cable device according to claim 79, characterized in that, The conversion component further includes: The second sub-board is inserted into the motherboard; the second sub-board is provided with an inductor and is located between the first heat sink and the second heat sink. The second sub-board is connected to the output component via a first wire group to transmit the second voltage; the first wire group abuts against at least one of the first heat sink or the second heat sink.

82. The data cable device according to claim 79, characterized in that, It also includes an input component for connecting to a power supply to input the first voltage; the conversion component further includes a third sub-board; and the heat dissipation component further includes a fourth heat dissipation element, wherein: The third daughterboard is inserted into the motherboard; The third sub-board is connected to the input component and the transformer element respectively; An inductor is provided on the first side of the third sub-board, and the fourth heat sink abuts against the second side of the third sub-board; The first surface and the second surface of the third sub-board are two opposing surfaces.

83. The data cable device according to claim 82, characterized in that, The first heat sink, the second heat sink, the third heat sink, and the fourth heat sink are respectively graphene heat sinks or metal heat sinks.

84. The data cable device according to claim 83, characterized in that, The first heat sink is a metal heat sink, and the second, third and fourth heat sinks are graphene heat sinks.

85. The data cable device according to claim 83, characterized in that, The graphene heat sink includes a thermally conductive silicone sheet and a graphene aluminum foil sheet attached to the outside of the thermally conductive silicone sheet; the metal heat sink includes an insulating sheet and a heat-dissipating copper sheet attached to the outside of the insulating sheet.

86. A charging device, characterized in that, Includes the data cable device as described in any one of claims 1-85.

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