Wireless charging device

Abstract

The wireless charging device disclosed in the application relates to the technical field of chargers. In the application, the wireless charging device comprises a first wireless charging body, a second wireless charging body and a third wireless charging body. The first wireless charging body contains a telescopic wire assembly. The telescopic wire with adjustable length, which is extended from the telescopic wire assembly, connects the second wireless charging body and the third wireless charging body on both sides of the first wireless charging body, realizes the integration of multiple charging devices, meets the charging requirements of various electronic devices such as watches, earphones, mobile phones and tablets, reduces the carrying burden of users, and is convenient for users to manage and use the charging devices. In addition, the first wireless charging body, the second wireless charging body and the third wireless charging body are folded and stored through magnetic attraction between magnetic members, further reducing the carrying burden of users.

Description

Technical Field

[0001] This application relates to the technical field of chargers, and particularly to a wireless charging device. Background Technology

[0002] Currently, most wireless charging devices on the market are of a fixed form, and their size and structure cannot flexibly meet the charging needs of different electronic devices. With the widespread use of various portable devices such as smartwatches, headphones, smartphones, and tablets, existing wireless chargers generally only support charging a single device or devices of a fixed specification, and cannot accommodate different types of devices. Therefore, when users encounter scenarios where they need to charge multiple devices simultaneously, they need to configure multiple dedicated chargers, which not only increases the burden of carrying them, but also causes inconvenience in use and management. Utility Model Content

[0003] This application provides a wireless charging device, comprising: a first wireless charging body having a first charging surface, a retractable cable assembly, and a first positioning magnetic element, wherein the first positioning magnetic element is disposed corresponding to the first charging surface, and the retractable cable assembly has a first retractable cable and a second retractable cable that can be led out of the first wireless charging body, and is used to adjust the lead-out length of the first retractable cable and / or the second retractable cable; a second wireless charging body connected to the first retractable cable, having a second charging surface, a second positioning magnetic element, and a connecting magnetic element, wherein the second positioning magnetic element is disposed corresponding to the second charging surface and is closer to the second charging surface than the connecting magnetic element, the second wireless charging body is configured such that the second charging surface contacts the first charging surface, and is magnetically connected through the second positioning magnetic element and the first positioning magnetic element, and is stacked on the first wireless charging body; and a third wireless charging body connected to the second retractable cable, having a third charging surface and a third positioning magnetic element, wherein the third wireless charging body is configured such that the third charging surface contacts the side of the second wireless charging body opposite to the second charging surface, and is magnetically connected through the third positioning magnetic element and the connecting magnetic element, and is stacked on the second wireless charging body.

[0004] In some embodiments, the first wireless charging body includes: a mounting housing having a first mounting cavity and a second mounting cavity, the telescopic cable assembly being disposed in the first mounting cavity, the first charging surface being disposed on the side of the second mounting cavity opposite to the first mounting cavity, and the first positioning magnetic element being disposed in the second mounting cavity; a main circuit board being disposed in the second mounting cavity and connected to the telescopic cable assembly; and a charging interface being disposed on the main circuit board, with the mounting housing having a charging interface opening at the position corresponding to the charging interface.

[0005] In some embodiments, when charging the first wireless charging unit, the first wireless charging unit can supply power to the second wireless charging unit or the third wireless charging unit.

[0006] In some embodiments, the first wireless charging body further includes: a first wireless charging coil, disposed in the second mounting cavity between the main circuit board and the first charging surface;

[0007] A coil bracket is disposed between the first wireless charging coil and the main circuit board for mounting the first wireless charging coil; wherein, the first positioning magnetic component has a first orthographic projection on the first charging surface; the first wireless charging coil has a second orthographic projection on the first charging surface, and the first orthographic projection is arranged around the second orthographic projection.

[0008] In some embodiments, the first wireless charging body further includes a bracket disposed within the second mounting cavity between the first wireless charging coil and the first positioning magnetic element, for mounting the first positioning magnetic element.

[0009] In some embodiments, the telescopic cable assembly further includes: a winding reel, rotatably disposed within the first wireless charging body about a rotation axis, for winding the first telescopic cable and the second telescopic cable, and having a gear coaxially disposed with respect to the rotation axis; a rotating member, disposed within the first wireless charging body, having a locking tooth, a first meshing tooth, and a second meshing tooth, the first meshing tooth being used to mesh with the gear; and a limiting gear, rotatably disposed within the first wireless charging body, having a third meshing tooth and a tooth groove located between two adjacent third meshing teeth, the third meshing tooth being used to mesh with the second meshing tooth. A locking groove is provided at the bottom of a portion of the adjacent tooth grooves, the locking groove being used to accommodate the locking tooth, the locking tooth or the second meshing tooth being located within the tooth groove; and wherein the rotating member is configured to rotate the locking tooth out of the tooth groove about a first rotation direction, and rotate the locking tooth within the tooth groove about a second rotation direction; when the locking tooth is placed in a tooth groove without the locking groove, the rotating member is locked with the limiting gear, preventing the winding disc from rotating; when the locking tooth is placed in the locking groove, the first meshing tooth disengages from the gear, unlocking the winding disc from rotating.

[0010] In some embodiments, the telescopic line assembly further includes a reset member, which cooperates with the rotating member to reset the locking tooth or the second engaging tooth to be located in the tooth groove.

[0011] In some embodiments, the rotating member includes: a rotating shaft portion rotatably disposed within the first wireless charging body; and a swing portion connected to the rotating shaft portion and protruding towards the side near the gear, wherein the locking tooth, the first meshing tooth, and the second meshing tooth are disposed on the swing portion; and the reset member is disposed on both sides of the rotation direction of the swing portion to define the rotation angle of the rotating member.

[0012] In some embodiments, the reset member has an elastic deformation capability, and the reset member resets the locking tooth or the second engaging tooth to be located in the tooth groove based on the elastic deformation.

[0013] In some embodiments, the first telescopic wire and the second telescopic wire are configured to be stacked and wound on the winding reel.

[0014] In some embodiments, the second wireless charging body includes: an assembly housing having a second charging surface; a first auxiliary circuit board connected to the first telescopic cable within the assembly housing, the connecting magnetic element being disposed on the side of the first auxiliary circuit board away from the second charging surface; and a second wireless charging coil located on the side of the first auxiliary circuit board near the second charging surface, the second positioning magnetic element being arranged around the second wireless charging coil.

[0015] In some embodiments, the connecting magnetic element has a third orthographic projection on the second charging surface; the second positioning magnetic element has a fourth orthographic projection on the second charging surface, and the fourth orthographic projection is arranged around the third orthographic projection.

[0016] In some embodiments, the assembly housing is provided with a mounting groove, and the connecting magnetic component is accommodated in the mounting groove.

[0017] In some embodiments, the third wireless charging body includes: a housing; a support frame installed inside the housing; a second auxiliary circuit board and a third wireless charging coil installed on the support frame, the second auxiliary circuit board being connected to the second telescopic cable, and the third wireless charging coil being arranged around the third positioning magnetic element.

[0018] The beneficial effects of this application are: by integrating multiple charging devices through a modular telescopic cable assembly, it can meet the charging needs of various electronic devices such as watches, headphones, mobile phones, and tablets, reducing the user's carrying burden and facilitating the management and use of charging devices. Furthermore, the first, second, and third wireless charging units achieve folding and storage through magnetic attraction between their magnetic components, further reducing the user's carrying burden. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of the wireless charging device in use when unfolded in some embodiments of this application;

[0021] Figure 2 for Figure 1 The diagram shown is a schematic representation of the structure of the wireless charging device when folded and stored in the embodiment shown.

[0022] Figure 3 for Figure 1 An exploded view of the first wireless charging element in some embodiments shown in the illustration;

[0023] Figure 4 for Figure 3 The illustrated embodiment shows a schematic diagram of the mounting housing in some embodiments;

[0024] Figure 5 for Figure 4 The illustrated embodiment shows a schematic diagram of the lower shell in some embodiments;

[0025] Figure 6 for Figure 3 Exploded view of the telescopic line assembly in some embodiments shown;

[0026] Figure 7 for Figure 6 The diagram shows a partial structural schematic of the telescopic line assembly in some embodiments.

[0027] Figure 8 for Figure 7 An exploded view of a portion of the telescopic line assembly structure in the illustrated embodiment;

[0028] Figure 9 for Figure 8 The schematic diagram of the limiting gear in some embodiments is shown in the figure.

[0029] Figure 10 for Figure 1 An exploded view of the second wireless charging element in some embodiments shown in the illustration;

[0030] Figure 11 for Figure 1 An exploded view of the third wireless charging element in some embodiments shown in the illustration.

[0031] Figure 12This is a schematic diagram of the resetting element in the telescopic line assembly in some embodiments of this application;

[0032] Figure 13 This is a structural schematic diagram of the first meshing transmission state between the rotating component and the limiting gear in some embodiments of the telescopic line assembly of this application;

[0033] Figure 14 This is a structural schematic diagram of the second meshing transmission state between the rotating component and the limiting gear in some embodiments of the telescopic line assembly of this application;

[0034] Figure 15 This is a structural schematic diagram of the third meshing transmission state between the rotating component and the limiting gear in some embodiments of the telescopic line assembly of this application;

[0035] Explanation of reference numerals in the attached diagram:

[0036] 100. Wireless charging devices;

[0037] 1. First wireless charging unit; 2. Second wireless charging unit; 3. Third wireless charging unit;

[0038] 11. Housing assembly; 12. Magnetic suction assembly; 13. Main charging module; 14. Telescopic cable assembly; 21. Housing assembly; 22. Second positioning magnetic component; 23. First auxiliary charging module; 24. Connecting magnetic component; 31. Housing housing housing; 32. Third positioning magnetic component; 33. Second auxiliary charging module; 34. Support frame;

[0039] 111. First cover plate; 112. Upper shell; 113. Lower shell; 121. First positioning magnetic component; 122. Bracket; 131. First wireless charging coil; 132. First coil bracket; 133. Main circuit board; 141. First telescopic cable; 142. Second telescopic cable; 143. Second conductive component; 144. Winding reel; 145. Rotating component; 146. Limiting gear; 147. Reset component; 211. Second cover plate; 212. Assembles the lower shell; 231. Second wireless charging coil; 232. First auxiliary circuit board; 311. Third cover plate; 312. Accommodates the lower shell; 331. Third wireless charging coil; 332. Second auxiliary circuit board; 333. Second coil bracket; 341. Clamping part;

[0040] 1111, First charging surface; 1121, First conductive element; 1101, First mounting cavity; 1101, Second mounting cavity; 1103, Charging interface opening; 1104, Mounting cavity opening; 1105, Telescopic cable opening; 1131, First fixed end; 1132, Second fixed end; 1133, Third fixed end; 1134, Fourth fixed end; 1331, Charging interface; 1431, Conductive track; 1441, Gear; 1451, Rotating shaft; 1452, Swinging part; 1461, Third meshing tooth; 1462, Tooth groove; 1463, Locking groove; 1471, First abutment part; 1472, Second abutment part; 1473, Elastic body; 2111, Second charging surface; 2101, First connecting cable opening; 2102, Mounting groove; 3111, Third charging surface; 3102, Second connecting cable opening;

[0041] 14521, First meshing tooth; 14522, Second meshing tooth; 14523, Locking tooth; 14524, Target area; 14711, Adjustment hole;

[0042] a) Shortest distance; b) First distance; c) Second distance. Detailed Implementation

[0043] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be noted that the following embodiments are for illustrative purposes only and do not limit the scope of the application. Similarly, the following embodiments are only some, not all, embodiments of the present application, and all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of the present application.

[0044] It should be noted that the terms "first," "second," and "third," etc., used in the specification and claims of this application are used to distinguish different objects and should not be construed as indicating or implying relative importance or describing a particular order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or devices.

[0045] This application describes a wireless charging device. The wireless charging device can wirelessly charge electronic devices based on electromagnetic induction. The electronic devices can be watches, headphones, mobile phones, tablets, or other battery-equipped devices well known to those skilled in the art.

[0046] Please see Figure 1 and Figure 2 , Figure 1These are schematic diagrams illustrating the structure of the wireless charging device in use as described in some embodiments of this application. Figure 2 for Figure 1 The illustrated embodiment shows a schematic diagram of the wireless charging device when folded and stored. The wireless charging device 100 may include a first wireless charging body 1, a second wireless charging body 2, and a third wireless charging body 3. The first wireless charging body 1 is electrically connected to the second wireless charging body 2 and the third wireless charging body 3. Therefore, during charging, the first wireless charging body 1 can supply power to the second wireless charging body 2 or the third wireless charging body 3.

[0047] In some embodiments, the first wireless charging unit 1 can be electrically connected to an external power source, so that the external power source supplies power to at least one of the three wireless charging units: the first wireless charging unit 1, the second wireless charging unit 2, and the third wireless charging unit 3. Alternatively, a battery can be disposed inside the first wireless charging unit 1, so that the battery supplies power to at least one of the three wireless charging units. Furthermore, when the first wireless charging unit 1 is electrically connected to an external power source, the external power source can charge the battery. Of course, in other embodiments, when the first wireless charging unit 1 is electrically connected to an external device, the battery can also supply power to the external device.

[0048] Of course, external devices may include external power supplies.

[0049] In some embodiments, the first wireless charging unit 1, the second wireless charging unit 2, and the third wireless charging unit 3 can be one of various wireless charging units, such as a wireless charging unit for headphones, a wireless charging unit for watches, a wireless charging unit for mobile phones, or a wireless charging unit for tablets, to charge electronic devices such as wireless headphone charging cases, watches, mobile phones, or tablets. Furthermore, the wireless charging device 100 can meet the charging needs of multiple electronic devices as much as possible, reducing the burden on users and facilitating the management and use of the wireless charging device 100.

[0050] It should be noted that this application does not strictly limit the electronic devices served by the first wireless charging unit 1, the second wireless charging unit 2, and the third wireless charging unit 3. For example, the first wireless charging unit 1, the second wireless charging unit 2, and the third wireless charging unit 3 can be different types of charging units. For example, the first wireless charging unit 1 can be a wireless charging unit for a mobile phone or tablet, the second wireless charging unit 2 can be a wireless charging unit for headphones, and the third wireless charging unit 3 can be a wireless charging unit for a watch. For example, the first wireless charging unit 1 and the second wireless charging unit 2 can be wireless charging units for mobile phones or tablets, and the third wireless charging unit 3 can be a wireless charging unit for a watch. In other optional embodiments, the three wireless charging units, the first wireless charging unit 1, the second wireless charging unit 2, and the third wireless charging unit 3, can be adjusted according to actual needs, which will not be elaborated further.

[0051] In addition, the charging element in the wireless charging device 100 may not be limited to the first wireless charging element 1, the second wireless charging element 2 and the third wireless charging element 3, but may also include others, and may also include non-wireless charging elements, which will not be elaborated here.

[0052] Please see Figure 2 The second wireless charging unit 2 can be stacked and fixed on the first wireless charging unit 1. On this basis, the third wireless charging unit 3 can also be stacked and fixed on the second wireless charging unit 2, so that the third wireless charging unit 3, the second wireless charging unit 2 and the first wireless charging unit 1 are arranged and stacked in sequence to achieve folding and storage, which facilitates the user's management and use of the charging device 100.

[0053] Please see Figure 3 , Figure 3 for Figure 1 The illustrated embodiment shows an exploded view of the first wireless charging body in some embodiments. The first wireless charging body 1 may include a mounting housing 11, a magnetic suction assembly 12 disposed on the mounting housing 11, a main charging module 13 disposed within the mounting housing 11, and a retractable cable assembly 14 disposed within the mounting housing 11. The mounting housing 11 serves to support structures such as the magnetic suction assembly 12, the main charging module 13, and the retractable cable assembly 14 within the first wireless charging body 1. The magnetic suction assembly 12 can be used to connect and fix with the second wireless charging body 2, enabling the charging device 100 to be stacked and stored. The main charging module 13 can be used to implement wireless charging functionality, charging electronic devices. Of course, the main charging module 13 can also supply power to the second wireless charging body 2 or the third wireless charging body 3. The retractable cable assembly 14 can be electrically connected to the main charging module 13 and can be electrically connected to the second wireless charging body 2 and the third wireless charging body 3 respectively, to achieve the connection and cooperation of the three wireless charging bodies: the first wireless charging body 1, the second wireless charging body 2, and the third wireless charging body 3.

[0054] Please see Figure 3 and Figure 4 , Figure 4 for Figure 3 The illustrated embodiment shows a schematic diagram of the mounting housing in some embodiments. The mounting housing may be made of a rigid material.

[0055] The mounting housing 11 can be a shell structure or a frame structure, or other structures, which will not be elaborated here.

[0056] The mounting housing 11 may include a first cover plate 111, an upper shell 112, and a lower shell 113. The first cover plate 111 and the lower shell 113 may be located on opposite sides of the upper shell 112. The first cover plate 111 and the upper shell 112 may be connected by screws, snaps, plugs, or other connection methods known to those skilled in the art. The lower shell 113 and the upper shell 112 may be connected by screws, snaps, plugs, or other connection methods known to those skilled in the art.

[0057] The first cover plate 111, the upper shell 112, and the lower shell 113 can cooperate to form a space to accommodate structures such as the magnetic suction assembly 12, the main charging module 13, and the telescopic cable assembly 14 inside the first wireless charging body 1. In some embodiments, the cooperation of the first cover plate 111, the upper shell 112, and the lower shell 113 can also divide the space inside the mounting housing 11 into a first mounting cavity 1101 and a second mounting cavity 1102 that are spaced apart. That is, the mounting housing 11 may be provided with a first mounting cavity 1101 and a second mounting cavity 1102 that are spaced apart.

[0058] Of course, the first mounting cavity 1101 and the second mounting cavity 1102 can be connected.

[0059] In some embodiments, the first mounting cavity 1101 and the second mounting cavity 1102 may be formed by physically dividing the upper shell 112 by providing a partition, or may be spatially divided in other ways.

[0060] In some embodiments, a first mounting cavity 1101 may be disposed between an upper shell 112 and a lower shell 113, and a second mounting cavity 1102 may be disposed between a first cover plate 111 and an upper shell 112. The first cover plate 111 may be circular to accommodate the layout of the main charging module 13. Of course, the shape of the first cover plate 111 is not limited to this; it may also be square, rounded rectangle, or any other suitable geometry.

[0061] The first cover plate 111 has a first charging surface 1111 on the side opposite to the second mounting cavity 1102. That is, the first wireless charging body 1, such as the mounting housing 11, may have the first charging surface 1111. The first charging surface 1111 is the functional area where the first wireless charging body 1 positions the electronic device so that the first wireless charging body 1, such as the main charging module 13, can charge the electronic device.

[0062] In some embodiments, the first charging surface 1111 can be used to position electronic devices such as smartphones or tablets so that the first wireless charging body 1, such as the main charging module 13, can wirelessly charge the electronic devices such as smartphones or tablets. In other embodiments, the first charging surface 1111 can also be adapted to position small devices such as wireless earphone charging cases and smartwatches.

[0063] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0064] The mounting housing 11, such as the upper housing 112, may be provided with a charging interface opening 1103 to cooperate with the main charging module 13, so that the first wireless charging body 1, such as the main charging module 13, can be electrically connected to an external device, such as an external power supply, at the charging interface opening 1103. In some embodiments, the charging interface opening 1103 may communicate with the mounting housing 11, such as the second mounting cavity 1102.

[0065] The mounting housing 11, for example, the upper housing 112, may be provided with a mounting cavity opening 1104 that connects the first mounting cavity 1101 and the second mounting cavity 1102, so as to cooperate with the main charging module 13 and the telescopic cable assembly 14. In some embodiments, the mounting cavity opening 1104 may be provided on the upper housing 112, for example, on a partition.

[0066] The mounting housing 11, such as the upper housing 112, may be provided with a telescopic cable opening 1105. In some embodiments, the telescopic cable opening 1105 may communicate with the mounting housing 11, such as the first mounting cavity 1101.

[0067] The telescopic cable opening 1105 is configured to allow the telescopic cable assembly 14 to extend out of the mounting housing 11, such as the upper housing 112, and to be electrically connected to the second wireless charging unit 2 and the third wireless charging unit 3. In some embodiments, there may be two telescopic cable openings 1105, or one or more. In some embodiments, the two telescopic cable openings 1105 may be on opposite side walls of the first mounting cavity 1101.

[0068] In some embodiments, the mounting housing 11, such as the upper housing 112, is provided with a first conductive element 1121, which can function to enable circuit conduction. For example, the first conductive element 1121 can be electrically connected to the retractable cable assembly 14 and to the main charging module 13, thereby achieving electrical connection between the main charging module 13 and the retractable cable assembly 14 through the first conductive element 1121. In some embodiments, the first conductive element 1121 can be disposed adjacent to the mounting cavity opening 1104, so that the main charging module 13 and the retractable cable assembly 14 can be electrically connected through the mounting cavity opening 1104.

[0069] In some embodiments, the first conductive element 1121 may have a brush for sliding connection with the retractable wire assembly 14. See also Figure 3 and Figure 5 , Figure 5 for Figure 4 The illustrated embodiment shows a schematic diagram of the lower shell in some embodiments. The lower shell 113 has fixing ends, such as a first fixing end 1131, a second fixing end 1132, a third fixing end 1133, and a fourth fixing end 1134, on the side near the upper shell 112, to cooperate with the upper shell 112 and the telescopic cable assembly 14. Furthermore, the number of fixing ends can be one or more, and the specific number can be set according to the needs of those skilled in the art, and is not limited to the embodiments listed herein.

[0070] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the positional relationship of the square modules or modules based on the positional relationship of the square modules or modules shown in the accompanying drawings. These terms are mainly for the purpose of better describing the present invention and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific square module, or to be constructed and operated with a specific square module.

[0071] Please see Figure 5 The first fixed end 1131 can be located at the center of the lower shell 113.

[0072] In some embodiments, the first fixed end 1131, the second fixed end 1132, and the third fixed end 1133 may be arranged collinearly, with the second fixed end 1132 located between the first fixed end 1131 and the third fixed end 1133. There are two fourth fixed ends 1134, each located on one side of the third fixed end 1133, and all three are collinear. This collinear axis is perpendicular to the axis of the first fixed end 1131, the second fixed end 1132, and the third fixed end 1133.

[0073] Please see Figure 3 The magnetic suction component 12 can be located within the mounting housing 11, for example, the second mounting cavity 1102. It can also be arranged around the main charging module 13 to effectively avoid affecting the main charging module 13.

[0074] The magnetic component 12 can be used to achieve magnetic attraction between the first wireless charging body 1 and the electronic device based on a magnetic field, i.e., magnetic connection. Of course, the magnetic component 12 can also be magnetically connected to the second wireless charging body 2 based on a magnetic field.

[0075] In some embodiments, the magnetic assembly 12 may include a first positioning magnetic element 121 and a bracket 122. The bracket 122 may be disposed within the second mounting cavity 1102 for supporting and mounting the first positioning magnetic element 121. The first positioning magnetic element 121 may be disposed between the bracket 122 and the first cover plate 111 and is correspondingly disposed to the first charging surface 1111.

[0076] In some embodiments, the first positioning magnetic element 121 may be made of a permanent magnet material (e.g., neodymium iron boron). The first positioning magnetic element 121 can generate a magnetic field and actively attract components made of magnetic material. The two components attract each other through magnetic force, thereby achieving connection and positioning. In some embodiments, the first positioning magnetic element 121 may be a ring design so that it can be arranged around the main charging module 13. In a further embodiment, the first positioning magnetic element 121 may be an open ring design.

[0077] In some embodiments, the first positioning magnetic element 121 may have a first orthographic projection on the first charging surface 1111.

[0078] In some embodiments, the bracket 122 is made of a low dielectric loss, low magnetic permeability material, which has a smaller impact on electromagnetic induction when the first wireless charger 1 is wirelessly charged. Of course, in other embodiments, the bracket 122 may also function as the first positioning magnetic element 121. In some embodiments, the bracket 122 may be omitted, and the first positioning magnetic element 121 may be directly installed in the second mounting cavity 1102. The bracket 122 serves to support the first positioning magnetic element 121. In some embodiments, the bracket 122 has a groove that matches the first positioning magnetic element 121 to accommodate the first positioning magnetic element 121, thus positioning and connecting the first positioning magnetic element 121. In some embodiments, the bracket 122 may cooperate with the mounting housing 11, such as the first cover plate 111, to limit and fix the first positioning magnetic element 121; for example, the first positioning magnetic element 121 may be sandwiched between the bracket 122 and the mounting housing 11, such as the first cover plate 111.

[0079] Please see Figure 3 The main charging module 13 can be located in the mounting housing 11, such as the second mounting cavity 1102, and can be arranged opposite to the first charging surface 1111 to charge the electronic device positioned by the first charging surface 1111.

[0080] The main charging module 13 may include a first wireless charging coil 131, a main circuit board 132, and a first coil bracket 133. The first wireless charging coil 131 can wirelessly charge electronic devices. The main circuit board 132 can be electrically connected to the first wireless charging coil 131 to supply power and control the first wireless charging coil 131. The first wireless charging coil 131 is closer to the first charging surface 1111 than the main circuit board 132. The first coil bracket 133 can support and fix the first wireless charging coil 131.

[0081] The first wireless charging coil 131 can be disposed on the first coil bracket 133 and can be correspondingly disposed with the first charging surface 1111 to wirelessly charge electronic devices positioned by the first charging surface 1111. Furthermore, the first wireless charging coil 131 can charge the electronic device based on electromagnetic induction. In some embodiments, the first wireless charging coil 131 has a second orthographic projection on the first charging surface 1111. In a further embodiment, the first orthographic projection ring can be disposed around the second orthographic projection to effectively reduce the impact of the magnetic attraction component 12 on the main charging module 13.

[0082] The main circuit board 132 can be electrically connected to the retractable cable assembly 14. For example, the main circuit board 132 can be electrically connected to the retractable cable assembly 14 through the first conductive element 1121.

[0083] The main circuit board 132 is provided with a charging interface 1321 that can be placed inside the charging interface opening 1103. This allows for electrical connection between the first wireless charging unit 1 (e.g., the main circuit board 132) and an external device (e.g., an external power supply), enabling the external device (e.g., the external power supply) to supply power to the first wireless charging unit 1 (e.g., the main circuit board 132). In some embodiments, the charging interface opening 1103 can also be replaced by a wire, allowing the wire to pass through the charging interface 1321 and be electrically connected to the main circuit board 132, and also to the external device.

[0084] In some embodiments, when an external device supplies power to the main circuit board 132 through the charging interface 1321, the main circuit board 132 can control the first wireless charging coil 131 to wirelessly charge the electronic device.

[0085] The first coil support 133 may be made of electromagnetic shielding material to protect the electronic components on the main circuit board 132. The first coil support 133 may be located between the first wireless charging coil 131 and the main circuit board 132.

[0086] Please see Figure 3 The telescopic cable assembly 14 can be located inside the mounting housing 11, such as the first mounting cavity 1101, and can extend out from the mounting housing 11, such as the first mounting cavity 1101, and be electrically connected to the second wireless charging body 2 and the third wireless charging body 3.

[0087] Please see Figure 3 and Figure 6 , Figure 6 for Figure 3The illustrated embodiment shows an exploded view of the telescopic cable assembly in some embodiments. The telescopic cable assembly 14 may include a first telescopic cable 141 and a second telescopic cable 142. The first telescopic cable 141 and the second telescopic cable 142 are electrically connected to the main circuit board 132. The first telescopic cable 141 is electrically connected to the second wireless charging body 2, and the second telescopic cable 142 is electrically connected to the third wireless charging body 3. This enables the first wireless charging body 1 to be electrically connected to the second wireless charging body 2 and the third wireless charging body 3. In some embodiments, the first telescopic cable 141 may pass through the telescopic cable opening 1105 so that it can be retracted into the mounting housing 11, such as the first mounting cavity 1101, or it may extend out of the mounting housing 11, such as the first mounting cavity 1101, thereby facilitating the storage and adjustment of the length of the first telescopic cable 141 outside the mounting housing 11, such as the first mounting cavity 1101, to meet the needs of different users. In some embodiments, the second telescopic cable 142 can be threaded through the telescopic cable opening 1105, so that it can be retracted into the mounting housing 11, such as the first mounting cavity 1101, or it can extend out of the mounting housing 11, such as the first mounting cavity 1101. This facilitates the storage and adjustment of the length of the second telescopic cable 142 outside the mounting housing 11, such as the first mounting cavity 1101, to meet the needs of different users. In some embodiments, the first telescopic cable 141 and the second telescopic cable 142 can be threaded through different telescopic cable openings 1105, or they can be threaded through the same telescopic cable opening 1105.

[0088] The retractable cable assembly 14 may further include a second conductive element 143. The second conductive element 143 can electrically connect the first retractable cable 141 to the main circuit board 132, thus achieving an electrical connection between the first retractable cable 141 and the main circuit board 132. The second conductive element 143 can also electrically connect the second retractable cable 142 to the main circuit board 132, thus achieving an electrical connection between the second retractable cable 142 and the main circuit board 132. In some embodiments, the second conductive element 143 can be electrically connected to the first conductive element 1121 to achieve an electrical connection with the main circuit board 132.

[0089] The telescopic cable assembly 14 may further include a winding reel 144 for winding the first telescopic cable 141 and the second telescopic cable 142. The winding reel 144 rotates around a rotation axis to store the first telescopic cable 141 and the second telescopic cable 142. In some embodiments, the first telescopic cable 141 and the second telescopic cable 142 may be layered and wound on the winding reel 144. In some embodiments, the first telescopic cable 141 and the second telescopic cable 142 may be wound side-by-side on the winding reel 144. In some embodiments, rotation of the winding reel 144 allows the first telescopic cable 141 and the second telescopic cable 142 to retract into the mounting housing 11, for example, the first mounting cavity 1101. Of course, to enable rotation of the winding reel 144, the winding reel 144 may also have an elastic device, such as a spring, to drive the winding reel 144 to rotate around a rotation axis, thereby storing the first telescopic cable 141 and the second telescopic cable 142 into the mounting housing 11, for example, the first mounting cavity 1101. Of course, the winding disc 144 can also be driven to rotate in other ways, such as by an electric motor installed in the mounting housing 11, for example, the first mounting cavity 1101.

[0090] In some embodiments, the winding disc 144 can be sleeved on the first fixed end 1131 to achieve rotation. Of course, the winding disc 144 can also be rotatably connected to the mounting housing 11, such as the upper housing 112 or the lower housing 113, in other ways.

[0091] In some embodiments, the second conductive element 143 may be disposed on the winding reel 144, thereby maintaining electrical connection with the first conductive element 1121, such as a brush, while the winding reel 144 rotates.

[0092] In some embodiments, the winding reel 144 is provided with a gear 1441 coaxially arranged with the rotation axis. In some embodiments, the gear 1441 is located on the side of the winding reel 144 closer to the lower housing 113. Of course, the position of the gear 1441 can also be adjusted, for example, it can be located on the side of the winding reel 144 away from the lower housing 113.

[0093] Please see Figure 6 , Figure 7 , Figure 8 and Figure 9 , Figure 7 for Figure 6 The diagram shows a partial structural schematic of the telescopic line assembly in some embodiments. Figure 8 for Figure 7 An exploded view of the telescopic line assembly structure in the illustrated embodiment. Figure 9 for Figure 8 The illustrated embodiment shows a schematic diagram of the limiting gear in some embodiments. The telescopic line assembly 14 may also include a rotating member 145 and a limiting gear 146.

[0094] The rotating member 145 can engage with the winding disc 144, such as a gear 1441, and can be in an engaged or disengaged state. Furthermore, when the rotating member 145 is engaged with the winding disc 144, such as a gear 1441, the rotation of the winding disc 144 can drive the rotating member 145 to rotate, causing the rotating member 145 to change from an engaged state to a disengaged state with the winding disc 144, such as a gear 1441. In the disengaged state, the winding disc 144 can rotate freely.

[0095] The limiting gear 146 can mesh with the rotating member 145 to lock or unlock the rotating member 145, so as to ensure that the rotating member 145 and the winding disc 144, such as the gear 1441, are in a meshing state or a non-meshing state.

[0096] When the limiting gear 146 engages with the rotating member 145 to lock the rotating member 145, it can ensure that the rotating member 145 and the winding disc 144, for example, the gear 1441, are in an engaged state, preventing the winding disc 144 from rotating.

[0097] When the limiting gear 146 engages with the rotating member 145 to unlock the rotating member 145, it ensures that the rotating member 145 and the winding disc 144, such as the gear 1441, are in an engaged or disengaged state, allowing the winding disc 144 to rotate freely, and can rotate until the rotating member 145 and the winding disc 144, such as the gear 1441, are in a disengaged state.

[0098] When the rotating member 145 is engaged with the winding disc 144 (e.g., gear 1441), the winding disc 144 (e.g., gear 1441) rotates, causing the rotating member 145 to rotate. This allows the rotating member 145 to be in a non-engaged state with the winding disc 144 (e.g., gear 1441). Simultaneously, the limiting gear 146 can engage with the rotating member 145, rotating to maintain the non-engaged state of the rotating member 145 with the winding disc 144 (e.g., gear 1441). Furthermore, the rotating member 145 can rotate in the opposite direction, for example, by oscillating, so that the rotating member 145 can be engaged with the winding disc 144 (e.g., gear 1441).

[0099] When the rotating member 145 is engaged with the winding disc 144 (e.g., gear 1441), the winding disc 144 rotates, causing the rotating member 145 to rotate. This allows the rotating member 145 to change from an engaged state to a disengaged state with the winding disc 144 (e.g., gear 1441). Simultaneously, the limiting gear 146 engages with the rotating member 145, rotating and locking it to maintain the engagement state between the rotating member 145 and the winding disc 144 (e.g., gear 1441). Furthermore, if the winding disc 144 (e.g., gear 1441) rotates in the opposite direction, the rotating member 145 and the limiting gear 146 will rotate, allowing the rotating member 145 to change from an engaged state to a disengaged state with the winding disc 144 (e.g., gear 1441), and remain in a disengaged state.

[0100] The rotating component 145 is rotatably connected to the third fixed end 1133 so that it is on the same side as the gear 1441. Of course, the rotating component 145 can also be rotatably connected to the mounting housing 11 in other ways, such as the upper housing 112 or the lower housing 113, as long as it is on the same side as the gear 1441 and can cooperate with each other.

[0101] Please refer to Figure 8 The rotating component 145 can be arranged in a fan-shaped structure.

[0102] Please refer to Figure 7 , Figure 8 The rotating member 145 may have a first meshing tooth 14521. The first meshing tooth 14521 can mesh with the gear 1441. Since the number of first meshing teeth 14521 is small and they are not evenly distributed around the circumference, they can change from a meshing state to a non-meshing state when meshing with the winding disc 144, such as the gear 1441. Alternatively, when the rotating member 145, such as the first meshing tooth 14521, is in a non-meshing state with the winding disc 144, such as the gear 1441, rotating the rotating member 145 can cause the rotating member 145, such as the first meshing tooth 14521, to be in a meshing state with the winding disc 144, such as the gear 1441.

[0103] In some embodiments, the number of first meshing teeth 14521 may be one.

[0104] Please see Figure 7 , Figure 8 and Figure 9The rotating member 145 may have a second meshing tooth 14522 and a locking tooth 14523. The second meshing tooth 14522 or the locking tooth 14523 may mesh with the limiting gear 146. The second meshing tooth 14522 can mesh with the limiting gear 146 for transmission, and the locking tooth 14523 can mesh with the limiting gear 146 for transmission and locking, preventing the rotating member 145 from rotating. When the locking tooth 14523 is not meshed with the limiting gear 146, the limiting gear 146 can be released, unlocking the rotating member 145 and allowing it to rotate. When the locking tooth 14523 is meshed with the limiting gear 146, the limiting gear 146 can be locked, preventing the rotating member 145 from rotating.

[0105] In some embodiments, the number of second engaging teeth 14522 may be one or more. In some embodiments, the number of locking teeth 14523 may be one or more.

[0106] Please see Figure 7 , Figure 8 The rotating component 145 may include a rotating shaft portion 1451 and a swing portion 1452. The rotating shaft portion 1451 is rotatably mounted on the mounting housing 11, for example, the upper housing 112 or the lower housing 113. For example, it may be rotatably connected to a third fixed end 1133. The swing portion 1452 may be connected to the rotating shaft portion 1451 and protrudes towards the side near the winding reel 144, for example, the gear 1441. In some embodiments, a first meshing tooth 14521, a second meshing tooth 14522, and a locking tooth 14523 may be provided on the swing portion 1452.

[0107] The limiting gear 146 is rotatably connected to the second fixed end 1132 so that it is located on the same side as the gear 1441.

[0108] The limiting gear 146 may have a third meshing tooth 1461. The third meshing tooth 1461 may mesh with the second meshing tooth 14522 or the locking tooth 14523, or may be locked with the locking tooth 14523.

[0109] The limiting gear 146 may have a tooth groove 1462 between two adjacent third meshing teeth 1461 to accommodate the second meshing tooth 14522, so as to realize the meshing transmission between the limiting gear 146, for example, the third meshing tooth 1461 and the rotating member 145, for example, the first meshing tooth 14521.

[0110] The limiting gear 146 has a retaining groove 1463 at the bottom of some of the adjacent tooth grooves 1462. The retaining groove 1463 is used to accommodate the retaining tooth 4523. In some embodiments, only one of two adjacent tooth grooves 1462 has a retaining groove 1463 at the bottom.

[0111] When the winding disc 144 rotates, it drives the rotating component 145 to rotate, so that the locking teeth 14523 can extend into the locking groove 1463 during the rotation and can disengage from the locking groove 1463.

[0112] When the winding disc 144 rotates, it drives the rotating component 145 to rotate, so that when the locking tooth 14523 is placed in the tooth groove 1462 without the locking groove 1463, the rotating component 145 is locked with the limiting gear 146, thus preventing the winding disc 144 from rotating.

[0113] Furthermore, by adjusting the engagement position of the rotating component 145, such as the locking tooth 14523, and the limiting gear 146, the limiting gear 146 can lock or unlock the rotating component 145 and the winding disc 144.

[0114] Please see Figure 7 , Figure 8 and Figure 9 When the winding disc 144 rotates around the first rotation direction F1, the rotating component 145, for example, the first meshing tooth 14521, can mesh with the winding disc 144, for example, the gear 1441, to drive the rotation. This causes the rotating component 145 to rotate around the second rotation direction F2, which is opposite to the first rotation direction F1. Consequently, the rotating component 145, for example, the first meshing tooth 14521, and the winding disc 144, for example, the gear 1441, are in a non-meshing state, allowing the winding disc 144, for example, the gear 1441, to rotate freely.

[0115] At the same time, the rotating member 145 rotates around the second rotation direction F2. The rotating member 145, for example, the second meshing tooth 14522, can mesh with the limiting gear 146, for example, the third meshing tooth 1461, to drive the limiting gear 146 to rotate. Of course, it can also make the locking tooth 14523 disengage from the tooth groove 1462.

[0116] Furthermore, when the rotating member 145, for example, the first meshing tooth 14521, and the winding disc 144, for example, the gear 1441, are in a non-meshing state, the rotating member 145, for example, the first meshing tooth 14521, can be rotated along the first rotation direction F1, so that the rotating member 145, for example, the first meshing tooth 14521, and the winding disc 144, for example, the gear 1441, are in a meshing state.

[0117] Simultaneously, the rotating member 145 rotates around the first rotation direction F1. This rotation can be achieved by the rotating member 145 engaging with, for example, the second meshing tooth 14522 and the limiting gear 146 engaging with, for example, the third meshing tooth 1461, driving the limiting gear 146 to rotate. Alternatively, the locking tooth 14523 can extend into the tooth groove 1462, or even into the locking groove 1463. Please refer to... Figure 7 , Figure 8 and Figure 9When the winding disc 144 rotates around the second rotation direction F2, the rotating component 145, for example, the first meshing tooth 14521, can mesh with the winding disc 144, for example, the gear 1441, to drive the rotation, causing the rotating component 145 to rotate around the first rotation direction F1, thereby causing the rotating component 145, for example, the first meshing tooth 14521, to change the meshing state of the winding disc 144, for example, the gear 1441, to change the non-meshing state.

[0118] At the same time, the rotating member 145 rotates around the first rotation direction F1, and can drive the limiting gear 146 to rotate by engaging with the limiting gear 146, for example, the locking tooth 14523 and the limiting gear 146, for example, the third meshing tooth 1461.

[0119] If the locking tooth 14523 can rotate into the locking groove 1463, so that the rotating part 145, for example, the first meshing tooth 14521 and the winding disc 144, for example, the gear 1441, are in a non-meshing state, the limiting gear 146 can unlock the rotating part 145 and the winding disc 144.

[0120] If the locking tooth 14523 can rotate into the tooth groove 1462 where the locking groove 1463 is not provided, the rotating member 145, for example, the first meshing tooth 14521, and the winding disc 144, for example, the gear 1441, are in a meshing state, thereby realizing the locking of the rotating member 145 and the winding disc 144 by the limiting gear 146.

[0121] If the locking tooth 14523 can be rotated into the locking groove 1463, the rotating member 145 can be rotated around the second rotation direction F2 so that the locking tooth 14523 disengages from the locking groove 1463, and the rotating member 145, for example, the first meshing tooth 14521, can be in a meshing state with the winding disc 144, for example, the gear 1441.

[0122] If the locking tooth 14523 can rotate into the tooth groove 1462 without the locking groove 1463, the winding disc 144 rotates around the first rotation direction F1, which can cause the locking tooth 14523 to disengage from the tooth groove 1462 without the locking groove 1463. This will cause the rotating member 145, for example, the first meshing tooth 14521, and the winding disc 144, for example, the gear 1441, to be in a non-meshing state, so that the winding disc 144, for example, the gear 1441, can rotate freely.

[0123] In some embodiments, the first rotation direction F1 may be the direction in which the first telescopic cable 141 and the second telescopic cable 142 extend out of the mounting housing 11, for example, the first mounting cavity 1101. In some embodiments, the second rotation direction F2 may be the direction in which the first telescopic cable 141 and the second telescopic cable 142 retract into the mounting housing 11, for example, the first mounting cavity 1101.

[0124] Please see Figure 6 , Figure 7 , Figure 8 The telescopic cable assembly 14 may also include a resetting member 147. The resetting member 147 may drive the rotating member 145 to rotate based on its elastic deformation capability, thereby causing the rotating member 145, for example, the first meshing tooth 14521, to change from a non-meshing state to a meshing state with the winding disc 144, for example, the gear 1441.

[0125] The reset member 147 can be disposed on the fourth fixed end 1134 and on both sides of the rotation path of the swing part 1452. Of course, the reset member 147 can also be fixedly connected to the mounting housing 11, such as the upper housing 112 or the lower housing 113, in other ways. In some embodiments, the reset member 147 can act on the rotating member 145 to limit its swing angle and provide a reset force, so that the rotating member 145 tends to return to a state in which the rotating member 145, for example, the first meshing tooth 14521 and the winding disc 144, for example, the gear 1441, are in meshing. This reset force is used to cause the rotating member 145 and the limiting gear 146 to remain or return to a ready-to-mesh state. In some embodiments, the reset member 147 can cooperate with the rotating member 145. When the winding reel 144 rotates, the gear 1441 meshes with the first meshing tooth 14521, causing the rotating member 145 to swing. When the rotating member 145 swings within a large range, the rotating member 145 presses the reset member 147, and the gear 1441 disengages from the first meshing tooth 14521. The reset member 147 applies a reset force to the rotating member 145, so that the first meshing tooth 14521 and the gear 1441 return to the meshing state.

[0126] In some embodiments, when the winding disc 144 rotates in the first rotation direction F1, the rotating member 145 swings under the drive of the gear 1441. When the swing range of the rotating member 145 is too large, the locking tooth 14523 disengages from the tooth groove 1462, and the resetting member 147 applies a resetting force to the rotating member 145, so that the locking tooth 14523 returns to the tooth groove 1462.

[0127] In some embodiments, when the winding disc 144 rotates in the second rotation direction F2, the rotating member 145 swings under the drive of the gear 1441. When the swing range of the rotating member 145 is too large, the second meshing tooth 14522 disengages from the third meshing tooth 1461, the locking tooth 14523 extends into the locking groove 1463, and the reset member 147 applies a reset force to the rotating member 145, so that the second meshing tooth 14522 re-meshes from the third meshing tooth 1461, and the locking tooth 14523 can disengage from the locking groove 1463.

[0128] In some embodiments, when the winding disc 144 rotates in the second rotation direction F2, the rotating member 145 swings under the drive of the gear 1441, the second meshing tooth 14522 meshes with the third meshing tooth 1461, and the locking tooth 14523 extends into the tooth groove 1462 without the locking groove 1463. The rotating member 145, for example, the first meshing tooth 14521, is in a meshing state with the winding disc 144, for example, the gear 1441. The reset member 147 applies a reset force to the rotating member 145, so that the second meshing tooth 14522 and the third meshing tooth 1461 continue to mesh.

[0129] Figure 12 This is a schematic diagram of the structure of the reset element in some embodiments of this application;

[0130] When the rotating component 145, for example, the first meshing tooth 14521, is engaged with the winding disc 144, for example, the gear 1441, the position of the rotating component 145 in this state is the first position. When the rotating component 145, for example, the first meshing tooth 14521, is not engaged with the winding disc, for example, the gear 1441, the position of the rotating component 145 in this state is the second position.

[0131] In some embodiments, the reset member 147 may include a first abutment portion 1471 and a second abutment portion 1472. The first abutment portion 1471 is located at one end of the reset member 147, and the second abutment portion 1472 is located at the end of the reset member 147 away from the first abutment portion 1471. The first abutment portion 1471 and the second abutment portion 1472 may be located on opposite sides along the rotation direction of the rotating member 145. When the winding reel 144 rotates and drives the rotating member 145 to rotate, the rotating member 145 rotates to a non-engaged state, approaching the first abutment portion 1471 or the second abutment portion 1472 of the reset member 147, so that it abuts against the rotating member 145.

[0132] In some embodiments, the reset member 147 may include an elastic body 1473, with both ends of the elastic body 1473 fixed to the lower shell 113. This can be achieved by providing fixed ends on the lower shell 113, or by other means, without specific limitations. The first abutment portion 1471 and the second abutment portion 1472 are connected between the two ends of the elastic body 1473. They can be an integrally formed structure, or fixed by bonding, welding, or mechanical connection, without specific limitations. In some embodiments, the elastic body 1473 can also provide force to the first abutment portion 1471 and the second abutment portion 1472, reducing the degree of deformation of the first abutment portion 1471 and the second abutment portion 1472 through deformation of the elastic body 1473.

[0133] In some embodiments, the first abutment portion 1471 or the second abutment portion 1472 undergoes elastic deformation during the rotation of the rotating member 145 from the first position to the second position. When the rotating member 145 abuts against the first abutment portion 1471, the first abutment portion 1471 is compressed by the rotating member 145, causing it to undergo elastic deformation, providing a dwell space for the rotating member 145 in the second position, ensuring that the rotating member 145 is disengaged from the winding reel 144. When the rotating member 145 abuts against the second abutment portion 1472, the second abutment portion 1472 is compressed by the rotating member 145, causing it to undergo elastic deformation, allowing the rotating member 145 to resume engagement with the winding reel 144, enabling the winding reel 144 to rotate freely.

[0134] In some embodiments, the first abutment portion 1471 or the second abutment portion 1472 is provided with an adjustment hole 14711 for adjusting the elastic deformation capability. The provision of the adjustment hole 14711 can reduce the hardness of the first abutment portion 1471 and the second abutment portion 1472 on the reset member 147, making it easier for them to generate greater elastic deformation under the same force, thereby increasing the dwell space of the rotating member 145 in the second position and ensuring that the rotating member 145 is completely disengaged from the winding disc 144.

[0135] In some embodiments, the adjustment holes 14711 can be rectangular, circular, elliptical, etc., and their number, shape, size, and position can be set according to the requirements of elastic deformation, without being specifically limited here. The setting of the adjustment holes 14711 can change the springback process of the reset member 147, thereby reducing the springback sound. In addition, it can also buffer the rotating member 145 during the rotation process of the rotating member 145.

[0136] In some embodiments, the reset member 147 can be made of a polymer material capable of elastic deformation, thereby enhancing the resilience of the reset member 147, reducing the noise during rebound, improving the user's feel when stretching the first telescopic cable 141 or the second telescopic cable 142, further improving the smoothness of stretching, and reducing noise generated during use. The polymer material can be silicone, natural / synthetic rubber, liquid crystal polymer, nylon, thermoplastic polyurethane elastomer, etc., and the specific material of the reset member 147 is not limited herein.

[0137] Please see Figure 13 , Figure 13 This is a structural schematic diagram of the first meshing transmission state between the rotating component and the limiting gear in some embodiments of the telescopic line assembly of this application.

[0138] In some embodiments, when the winding reel 144 rotates about the first rotation direction F1, the gear 1441 of the winding reel 144 meshes with the first meshing tooth 14521 of the rotating member 145, driving the rotating member 145 to rotate about the second rotation direction F2. At the same time, the second meshing tooth 14522 of the rotating member 145 meshes with the third meshing tooth 1461 of the limiting gear 146, thereby driving the limiting gear 146 to rotate about the first rotation direction F1. The rotating member 145 abuts against the second abutting portion 1472 of the reset member 147. The second abutting portion 1472 is squeezed by the rotating member 145, causing the second abutting portion 1472 to undergo elastic deformation. The locking tooth 14523 of the rotating member 145 is placed outside the tooth groove 1462 of the limiting gear 146. The second abutment portion 1472 of the reset member 147 can drive the rotating member 145 to rotate based on its elastic deformation capability, thereby causing the first meshing tooth 14521 of the rotating member 145 to change from a non-meshing state to a meshing state with the gear 1441 of the winding disc 144. In addition, the provision of the elastic body 1473 can also elastically deform simultaneously with the second abutment portion 1472 when it elastically deforms, thereby reducing the degree of deformation of the second abutment portion 1472.

[0139] Please see Figure 14 and Figure 15 , Figure 14 This is a schematic diagram of the second meshing transmission state between the rotating component and the limiting gear in some embodiments of the telescopic line assembly of this application. Figure 15 This is a structural schematic diagram of the third meshing transmission state between the rotating component and the limiting gear in some embodiments of the telescopic line assembly of this application.

[0140] In some embodiments, when the winding reel 144 rotates about the second rotation direction F2, the gear 1441 of the winding reel 144 meshes with the first meshing tooth 14521 of the rotating member 145, driving the rotating member 145 to rotate about the first rotation direction F1. At the same time, the locking tooth 14523 of the rotating member 145 meshes with the third meshing tooth 1461 of the limiting gear 146, thereby driving the limiting gear 146 to rotate about the first rotation direction F1, so that the locking tooth 14523 of the rotating member 145 is placed in the tooth groove 1462 of the limiting gear 146.

[0141] Please see Figure 14 In some embodiments, if the locking teeth 14523 of the rotating member 145 rotate into the tooth groove 1462 of the limiting gear 146 where the locking groove 1463 is not provided, the rotating member 145 is locked in the first position, so that the first meshing teeth 14521 of the rotating member 145 are in a meshing state with the gear 1441 of the winding disc 144, thereby realizing the locking of the limiting gear 146 on the rotating member 145 and the winding disc 144, so that the winding disc 144 cannot rotate.

[0142] See Figure 15In some embodiments, if the locking teeth 14523 of the rotating member 145 rotate into the groove 1462 of the locking slot 1463 of the limiting gear 146, the rotating member 145 abuts against the first abutting part 1471 of the resetting member 147. The first abutting part 1471 is squeezed by the rotating member 145, causing the first abutting part 1471 to undergo elastic deformation, providing a dwell space for the rotating member 145 to be in the second position. The rotating member 145 is locked in the second position, so that the first meshing teeth 14521 of the rotating member 145 disengage from the gear 1441 of the winding disc 144, thereby unlocking the limiting gear 146 from the rotating member 145 and the winding disc 144, allowing the winding disc 144 to rotate freely. The first abutting part 1471 of the reset member 147 can drive the rotating member 145 to rotate based on its elastic deformation capability, thereby causing the first meshing tooth 14521 of the rotating member 145 and the gear 1441 of the winding disc 144 to change from a non-meshing state to a meshing state.

[0143] Please see Figure 13 , Figure 14 , Figure 15 In some embodiments, the locking teeth 14523 of the rotating member 145 have a target portion 14524 that forms a shortest distance a with the rotation axis of the limiting gear 146. The target portion 14524 changes with the position of the rotating member 145, and the specific position is not limited. A first distance b is formed between the target portion 14524 and the rotation axis of the rotating member 145, and a second distance c is formed between the rotation axis of the rotating member 145 and the rotation axis of the limiting gear 146. During the process of the rotating member 145 rotating from the second position to the first position, the sum of the shortest distance a and the first distance b is greater than the second distance c, so that there is a certain distance between the locking teeth 14523 and the rotation axis of the limiting gear 146, ensuring that the locking teeth 14523 will not cause the limiting gear 146 to rotate, but rather they lock and limit each other, thereby limiting the swing member 13 to the first position or the second position, and realizing the stability and reliability of the telescopic line assembly 14.

[0144] Please combine Figure 1 , Figure 2 and Figure 10 , Figure 10 for Figure 1The illustrated embodiment shows an exploded view of the second wireless charging body in some embodiments. The second wireless charging body 2 may include an assembly housing 21, a second positioning magnetic element 22, a first auxiliary charging module 23, and a connecting magnetic element 24. The assembly housing 21 can be used to support structures such as the second positioning magnetic element 22, the first auxiliary charging module 23, and the connecting magnetic element 24 installed within the second wireless charging body 2. When the second positioning magnetic element 22 and the connecting magnetic element 24 are placed in the assembly housing 21, the second positioning magnetic element 22 is closer to the second charging surface 2111 than the connecting magnetic element 24. The second positioning magnetic element 22 can be used to connect with the first wireless charging body 1, for example, the magnetic attraction component 12, to achieve stacking and storage of the charging device 100. The connecting magnetic element 24 can be used to connect with the third wireless charging body 3 to achieve stacking and storage of the charging device 100. The first auxiliary charging module 23 can be used to implement the wireless charging function to charge electronic devices. The second positioning magnetic element 22 can be arranged around the first auxiliary charging module 23.

[0145] The assembly housing 21 can be made of rigid materials. The assembly housing 21 can be a shell structure or a frame structure, or other structures, which will not be elaborated here.

[0146] The assembly housing 21 may include a second cover plate 211 and an assembly lower housing 212. The second cover plate 211 may be connected to the assembly lower housing 212 by screwing, snap-fitting, plugging or other connection methods known to those skilled in the art.

[0147] The second cover plate 211 can be circular to accommodate the layout of the main charging module 13. Of course, the shape of the second cover plate 211 is not limited to this; it can also be square, rounded rectangle, or any other suitable geometry.

[0148] The second cover plate 211 has a second charging surface 2111 on the side opposite to the assembly lower shell 212. The second charging surface 2111 is the functional area where the second wireless charging body 2 positions the electronic device, so that the second wireless charging body 2, for example, the first auxiliary charging module 23, can charge the electronic device. Of course, the second charging surface 2111 can also be used to position devices such as smartphones or tablets, wireless earphone charging cases, and smartwatches.

[0149] In some embodiments, the second wireless charging body 2 may be configured to contact the first wireless charging body 1, for example, the first charging surface 1111, at the second charging surface 2111. When the second charging surface 2111 contacts the first wireless charging body 1, for example, the first charging surface 1111, the second wireless charging body 2 may be stacked on top of the first wireless charging body 1. Figure 2 As shown.

[0150] The lower housing 212 may be provided with a first connecting wire opening 2101 through which the first telescopic wire 141 passes. Through the first connecting wire opening 2101, the second wireless charging element 2, such as the first auxiliary charging module 23, can be connected to the first telescopic wire 141. The lower housing 212 may be provided with a mounting groove 2102 for accommodating and fixing the magnetic component 24. In some embodiments, the mounting groove 2102 is a circular recess. Of course, it is understood that the mounting groove 2102 can also be a square recess or a recess of other shapes, the specific shape of which is adapted to the shape of the magnetic component 24.

[0151] The first auxiliary charging module 23 may include a second wireless charging coil 231 and a first auxiliary circuit board 232. The first auxiliary circuit board 232 may be electrically connected to the second wireless charging coil 231, and the first auxiliary circuit board 232 may supply power and control the second wireless charging coil 231. The second wireless charging coil 231 is closer to the second charging surface 2111 than the first auxiliary circuit board 232.

[0152] The first auxiliary circuit board 232 can be disposed adjacent to the first connecting line opening 2101 to connect with the first retractable wire 141 passing through the first connecting line opening 2101, thereby realizing the electrical connection between the main circuit board 132 and the first auxiliary circuit board 232. When power is supplied to the first auxiliary charging module 23, the main charging module 13, such as the main circuit board 132, can supply power to the second wireless charging body 2, such as the first auxiliary circuit board 232, through the first conductive element 1121 and the retractable wire assembly 14, such as the first retractable wire 141. The first auxiliary circuit board 232 can control the second wireless charging coil 231 to wirelessly charge electronic devices, such as mobile phones or tablets, wireless earphone charging cases, smartwatches, etc.

[0153] In some embodiments, the function of the first auxiliary circuit board 232 can be performed by the main circuit board 132. Therefore, the first auxiliary circuit board 232 can be omitted, and the main circuit board 132 can be electrically connected to the second wireless charging coil 231. The second positioning magnetic element 22 can be a ring-shaped structure and can be arranged around the second wireless charging coil 231. It is understood that the specific shape, quantity, and magnetic pole arrangement of the second positioning magnetic element 22 can be adjusted and is not limited to a ring shape. The second positioning magnetic element 22 can generate a magnetic field and can generate magnetic force with the first wireless charging body 1, such as the magnetic attraction component 12, based on the magnetic field, enabling them to attract each other and achieve a magnetic connection.

[0154] In some embodiments, when the second wireless charging body 2, such as the second wireless charging coil 231, wirelessly charges the electronic device, the second positioning magnetic element 22 can also generate magnetic force with the electronic device based on the magnetic field, and can attract each other to achieve a magnetic connection between the two, thereby positioning the second wireless charging coil 231 and the electronic device and improving the efficiency of wireless charging.

[0155] In some embodiments, such as Figure 2 As shown, when the second wireless charging body 2 is stacked with the first wireless charging body 1, the second wireless charging body 2, for example, the second charging surface 2111, comes into contact with the first wireless charging body 1, for example, the first charging surface 1111. The second wireless charging body 2, for example, the second positioning magnetic element 22, can be magnetically connected with the first positioning magnetic element 121 in the first wireless charging body 1, thereby enhancing the stability of the stacking and ensuring that the charging device 100 is in a folded storage state.

[0156] The connecting magnetic component 24 can be located on the side of the first auxiliary charging module 23 opposite to the second charging surface 2111, and can be fixed in the assembly lower housing 212, for example, in the mounting groove 2102.

[0157] The connecting magnetic element 24 can generate a magnetic field to form a magnetic connection with the third wireless charging body 3 based on the magnetic field.

[0158] In some embodiments, the second positioning magnetic element 22 may have a fourth orthographic projection on the second charging surface 2111, and the fourth orthographic projection is arranged around the third orthographic projection of the connecting magnetic element 24 on the second charging surface 2111.

[0159] Please combine Figure 1 , Figure 2 and Figure 11 , Figure 11 for Figure 1 The illustrated embodiment shows an exploded view of the third wireless charging element in some embodiments. The third wireless charging element 3 may include a housing 31, a third positioning magnetic element 32, a second auxiliary charging module 33, and a support frame 34. The housing 31 can be used to house structures such as the third positioning magnetic element 32, the second auxiliary charging module 33, and the support frame 34 that carry the third wireless charging element 3. The third positioning magnetic element 32 can be used to connect with the second wireless charging element 2, for example, a connecting magnetic element 24, to achieve stacking and storage of the charging device 100.

[0160] The second auxiliary charging module 33 can be used to realize wireless charging function to charge electronic devices. The support frame 34 can be used to support and fix the third positioning magnetic component 32 and the second auxiliary charging module 33, etc.

[0161] The housing 31 can be made of rigid material. The housing 31 can be a shell structure or a frame structure, or other structures, which will not be elaborated here.

[0162] The housing 31 may include a third cover plate 311 and a lower housing 312. The third cover plate 311 and the lower housing 312 may be connected by screwing, snap-fitting, plugging or other connection methods known to those skilled in the art.

[0163] The third cover plate 311 can be circular to accommodate the layout of the main charging module 13. Of course, the shape of the third cover plate 311 is not limited to this; it can also be square, rounded rectangle, or any other suitable geometry.

[0164] The third cover plate 311 has a third charging surface 3111 on the side opposite to the receiving lower shell 312. The third charging surface 3111 is the functional area where the third wireless charging body 3 positions the electronic device to enable the third wireless charging body 3, such as the second auxiliary charging module 33, to charge the electronic device. Of course, the third charging surface 3111 can also be used to position devices such as smartphones or tablets, wireless earphone charging cases, and smartwatches.

[0165] In some embodiments, the third wireless charging body 3 may be configured to contact the side of the second wireless charging body 2, for example, the side of the mounting housing 21 opposite to the second charging surface 2111, at the third charging surface 3111. When the third wireless charging body 3 is stacked on the second wireless charging body 2 and the third charging surface 3111 is in contact with the side of the second wireless charging body 2 opposite to the second charging surface 2111, the third wireless charging body 3 can be stacked on the second wireless charging body 2, such as... Figure 2 As shown.

[0166] The lower housing 312 may be provided with a second connecting wire opening 3101 through which the second telescopic wire 142 passes. Through the second connecting wire opening 3101, the third wireless charging body 3, such as the second auxiliary charging module 33, can be connected to the second telescopic wire 142.

[0167] The second auxiliary charging module 33 may include a third wireless charging coil 331 and a second auxiliary circuit board 332. The second auxiliary circuit board 332 may be electrically connected to the third wireless charging coil 331. The second auxiliary circuit board 332 may supply power and control the third wireless charging coil 331. The third wireless charging coil 331 is closer to the third charging surface 3111 than the second auxiliary circuit board 332.

[0168] The second auxiliary charging module 33 may further include a second coil bracket 333 for supporting and fixing the third wireless charging coil 331 and the second auxiliary circuit board 332, etc. In some embodiments, the third wireless charging coil 331 and the second auxiliary circuit board 332 may be placed on opposite sides of the second coil bracket 333.

[0169] The second auxiliary circuit board 332 may be disposed adjacent to the second connection line opening 3101 to connect with the second telescopic line 142 passing through the second connection line opening 3101, thereby realizing the electrical connection between the main circuit board 132 and the second auxiliary circuit board 332.

[0170] When the second auxiliary charging module 33 is powered, the main charging module 13, such as the main circuit board 132, can supply power to the first wireless charging body 1, such as the second auxiliary circuit board 332, through the first conductive element 1121 and the telescopic cable assembly 14, such as the second telescopic cable 142. The second auxiliary circuit board 332 can control the third wireless charging coil 331 to wirelessly charge charging devices, such as mobile phones or tablets, wireless earphone charging cases, smartwatches, etc.

[0171] In some embodiments, the function of the second auxiliary circuit board 332 can be performed by the main circuit board 132. Therefore, the second auxiliary circuit board 332 can be omitted, and the main circuit board 132 can be electrically connected to the third wireless charging coil 331.

[0172] The third positioning magnetic element 32 can be a columnar structure. It is understood that the specific shape, quantity and magnetic pole arrangement of the third positioning magnetic element 32 can be adjusted and are not limited to columnar.

[0173] The third positioning magnetic element 32 can be snapped onto the housing 31, such as the support frame 34, and allows the third wireless charging coil 331 to surround the third positioning magnetic element 32. The third positioning magnetic element 32 enables the third wireless charging body 3 to be magnetically connected to the second wireless charging body 2 or electronic device based on a magnetic field.

[0174] In some embodiments, such as Figure 2 As shown, the third wireless charging body 3 is stacked on the second wireless charging body 2, and the third charging surface 3111 is in contact with the side of the second wireless charging body 2 opposite to the second charging surface 2111. The third wireless charging body 3 can be stacked on the second wireless charging body 2. At the same time, the third wireless charging body 3, for example, the third positioning magnetic element 32, and the second wireless charging body 2, for example, the connecting magnetic element 24, are magnetically connected based on the magnetic field to achieve a fixed connection.

[0175] In some embodiments, an electronic device may be placed on the third wireless charging body 3, such as the third charging surface 3111, and the third wireless charging body 3, such as the third positioning magnetic element 32, may be magnetically connected to the electronic device based on a magnetic field to achieve a fixed connection.

[0176] A clamping portion 341 may be provided on the housing 31, such as the support frame 34. In some embodiments, the clamping portion 341 is a ring structure formed by a plurality of equidistantly arranged elastic arms. The clamping portion 341, such as the elastic arms, can clamp the third positioning magnetic element 32, thereby realizing the installation of the third positioning magnetic element 32 on the housing 31, such as the support frame 34.

[0177] In some embodiments, the support frame 34 is part of the housing 31.

[0178] In the several embodiments provided in this application, it should be understood that the disclosed methods and devices can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For instance, the division of modules or units is only a logical functional division, and there may be other division methods in actual implementation. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed.

[0179] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment, depending on actual needs.

[0180] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0181] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A wireless charging device, characterized in that, include: The first wireless charging body has a first charging surface, a telescopic cable assembly and a first positioning magnetic component. The first positioning magnetic component is disposed corresponding to the first charging surface. The telescopic cable assembly has a first telescopic cable and a second telescopic cable that can be led out to the body of the first wireless charging body, and is used to adjust the lead-out length of the first telescopic cable and / or the second telescopic cable. The second wireless charging body is connected to the first retractable cable and has a second charging surface, a second positioning magnetic component and a connecting magnetic component. The second positioning magnetic component is disposed corresponding to the second charging surface and is closer to the second charging surface than the connecting magnetic component. The second wireless charging body is configured such that the second charging surface contacts the first charging surface and is magnetically connected through the second positioning magnetic component and the first positioning magnetic component, and is stacked on the first wireless charging body. A third wireless charging element is connected to the second retractable cable and has a third charging surface and a third positioning magnetic element. The third wireless charging element is configured such that the third charging surface contacts the side of the second wireless charging element that is away from the second charging surface, and is magnetically connected through the third positioning magnetic element and the connecting magnetic element, and is stacked on the second wireless charging element.

2. The wireless charging device according to claim 1, characterized in that, The first wireless charging device includes: The mounting housing has a first mounting cavity and a second mounting cavity. The telescopic cable assembly is disposed in the first mounting cavity. The first charging surface is disposed in the second mounting cavity on the side opposite to the first mounting cavity. The first positioning magnetic element is disposed in the second mounting cavity. The main circuit board is disposed in the second mounting cavity and connected to the telescopic cable assembly; A charging interface is provided on the main circuit board, and the mounting housing has a charging interface opening at the corresponding position of the charging interface.

3. The wireless charging device according to claim 1 or 2, characterized in that, The first wireless charging unit is used to power the second wireless charging unit through the first retractable cable, and to power the third wireless charging unit through the second retractable cable.

4. The wireless charging device according to claim 2, characterized in that, The first wireless charging device also includes: A first wireless charging coil is disposed within the second mounting cavity between the main circuit board and the first charging surface; A coil bracket is disposed between the first wireless charging coil and the main circuit board for mounting the first wireless charging coil; The first positioning magnetic component has a first orthographic projection on the first charging surface; the first wireless charging coil has a second orthographic projection on the first charging surface, and the first orthographic projection is arranged around the second orthographic projection.

5. The wireless charging device according to claim 4, characterized in that, The first wireless charging device also includes: A bracket is disposed within the second mounting cavity between the first wireless charging coil and the first positioning magnetic component, for mounting the first positioning magnetic component.

6. The wireless charging device according to any one of claims 1-2 and 4-5, characterized in that, The telescopic cable assembly also includes: A winding reel, rotatably disposed within the first wireless charging body about a rotation axis, is used to wind the first telescopic wire and the second telescopic wire, and has a gear coaxially disposed with the rotation axis. A rotating component is disposed within the first wireless charging body and has locking teeth, a first meshing tooth, and a second meshing tooth, wherein the first meshing tooth is used to mesh with the gear; A limiting gear, rotatably disposed within the first wireless charging body, has a third meshing tooth and a tooth groove located between two adjacent third meshing teeth. The third meshing tooth is used to mesh with a second meshing tooth. A retaining groove is provided at the bottom of a portion of the adjacent tooth grooves to accommodate a retaining tooth. The retaining tooth or the second meshing tooth is located within the tooth groove. The rotating component is configured to rotate the locking tooth out of the tooth groove in a first direction, and rotate the locking tooth in the tooth groove in a second direction. When the locking tooth is placed in the tooth groove where the locking groove is not provided, the rotating member is locked with the limiting gear, preventing the winding disc from rotating; When the locking tooth is placed in the locking groove, the first meshing tooth disengages from the gear, unlocking the winding disc from rotating.

7. The wireless charging device according to claim 6, characterized in that, The telescopic cable assembly also includes: A reset component, which cooperates with the rotating component, is used to reset the locking tooth or the second meshing tooth to be located in the tooth groove.

8. The wireless charging device according to claim 7, characterized in that, The rotating component includes: The pivot section is rotatably mounted within the first wireless charging body; and The swing part is connected to the rotating shaft part and protrudes towards the side close to the gear. The locking tooth, the first meshing tooth and the second meshing tooth are disposed on the swing part. The reset member is disposed on both sides of the rotation direction of the swing part to define the rotation angle of the rotating member.

9. The wireless charging device according to claim 7, characterized in that, The reset member has elastic deformation capability, and the reset member resets the locking tooth or the second meshing tooth to be located in the tooth groove based on the elastic deformation.

10. The wireless charging device according to claim 6, characterized in that, The first telescopic wire and the second telescopic wire are configured to be stacked and wound on the winding spool.

11. The wireless charging device according to claim 1, characterized in that, The second wireless charging device includes: The assembly housing has the second charging surface; A first auxiliary circuit board is connected to the first telescopic cable within the assembly housing, and the connecting magnetic component is disposed on the side of the first auxiliary circuit board opposite to the second charging surface; and The second wireless charging coil and the second positioning magnetic element are located on the side of the first auxiliary circuit board closer to the second charging surface, and the second positioning magnetic element is arranged around the second wireless charging coil.

12. The wireless charging device according to claim 11, characterized in that, The connecting magnetic component has a third orthographic projection on the second charging surface; the second positioning magnetic component has a fourth orthographic projection on the second charging surface, and the fourth orthographic projection is arranged around the third orthographic projection.

13. The wireless charging device according to claim 11, characterized in that, The assembly housing is provided with a mounting groove, and the connecting magnetic component is accommodated in the mounting groove.

14. The wireless charging device according to claim 1, characterized in that, The third wireless charging device includes: Housing; A support frame is installed inside the housing. The second auxiliary circuit board and the third wireless charging coil are mounted on the support frame. The second auxiliary circuit board is connected to the second telescopic line, and the third wireless charging coil is arranged around the third positioning magnetic element.

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