Wireless charging device convenient to store and charging method

By designing a wireless charging device with a retractable cable module and connecting strap, the problem of cable storage for portable wireless charging products is solved, achieving full cable storage, improving portability and user experience, and enhancing market competitiveness.

CN121749447APending Publication Date: 2026-03-27SHENZHEN SUIQI INNOVATION TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-01-27
Publication Date
2026-03-27

AI Technical Summary

Technical Problem

Existing portable wireless charging products have shortcomings in cable management. The cables are easy to lose or get tangled, increasing the burden of carrying them when traveling and affecting portability and aesthetics.

Method used

Design a wireless charging device that is easy to store, including a pull-out retractable cable module and a connecting strap. The cable is hidden inside the housing, and the housing is connected to each other by the connecting strap. Combined with magnetic adsorption and an adjustable-angle flipping housing, the cable can be fully stored.

Benefits of technology

Completely solves the pain point of carrying separate cables, improves portability and user experience, realizes integrated storage of cables and devices, simplifies operation, and enhances market competitiveness.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a wireless charging device convenient to store and a charging method. The wireless charging device comprises a first shell, a second shell, a drawable telescopic line module, a connecting belt, a first charging assembly and a second charging assembly. The first charging assembly is arranged in the first shell, the second charging assembly is arranged in the second shell, and the first shell and the second shell are connected through a connecting belt; and the drawable telescopic line module is arranged in the first shell, is electrically connected with the first charging assembly, and is used for charging output or power supply input. The device has the beneficial effects that integrated deep storage of the wire and the device is achieved, and the problem of carrying pain points in a separated mode is thoroughly solved; the overall portability and the user experience are optimized; and the method has obvious market competitive advantages.
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Description

Technical Field

[0001] This invention belongs to the field of wireless charging devices, and specifically relates to a wireless charging device and charging method that are easy to store. Background Technology

[0002] With the rapid popularization of smart mobile devices and the increasing maturity of wireless charging technology, portable energy storage devices that support wireless charging (such as wireless power banks) and foldable, card-type wireless chargers have gradually become market hotspots. These products typically pursue a thin and compact design to improve portability. However, in actual use, users often still need to carry additional charging cables to charge the wireless charging device itself or to wired charge devices that do not have wireless charging capabilities. Most existing products adopt a "main unit + detachable cable" form, with the cable stored separately from the device. This not only makes it easy to lose or get tangled but also increases the burden of storage when traveling, failing to truly achieve a "one-stop" portable experience.

[0003] Currently, some products on the market attempt to integrate charging cables with devices, such as fixing short cables to the casing or embedding them within the device. However, these designs often suffer from limitations in length, limited usage scenarios, and inability to flexibly adapt to various charging distances and angles. Furthermore, these attached cables may still be exposed during storage, affecting overall aesthetics and portability, and may even shorten their lifespan due to prolonged bending. Therefore, how to organically integrate charging cables into the device structure without increasing size and complexity, achieving a convenient, flexible, and complete storage experience, remains a critical challenge that needs to be addressed in current technologies.

[0004] In summary, existing portable wireless charging products generally have shortcomings in cable management, and users still face the practical inconvenience of carrying and organizing cables. Summary of the Invention

[0005] To address the aforementioned problems, the primary objective of this invention is to provide a wireless charging device that is easy to store, thereby resolving the technical issues described above.

[0006] To achieve the above objectives, the technical solution of the present invention is as follows:

[0007] The first aspect of the present invention provides a wireless charging device that is easy to store, the wireless charging device including a first housing, a second housing, a retractable cable module, a connecting strap, a first charging component, and a second charging component;

[0008] The first charging component is placed inside the first housing, and the second charging component is placed inside the second housing. The first housing and the second housing are connected by a connecting strip.

[0009] The retractable cable module is housed within the first housing and is electrically connected to the first charging component. The retractable cable module serves as either a charging output or a power input. Specifically, charging output indicates that the wireless charging device charges other electronic devices via the retractable cable module, while power input indicates that a power source charges the wireless charging device via the retractable cable module.

[0010] The connecting strap is foldable, allowing the first and second housings to abut against each other, thus reducing the space occupied by the wireless charging device. The connecting strap can be made of soft materials such as silicone, soft plastic, or fabric, or it can be a foldable structure like a watch strap.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] First, it achieves integrated and deep storage of the cable and device, completely solving the pain point of separate carrying: This invention integrates the retractable cable module into the first housing, making the cable no longer a separate, easily lost accessory, but an integral part of the product. When not in use, the cable can be completely retracted and hidden inside the device, achieving a clean "wireless" appearance and carrying experience, fundamentally solving the problem of users needing to separately manage and store charging cables.

[0013] Secondly, overall portability and user experience have been optimized: by integrating the cable management function into the product itself, users only need to carry a single device when traveling, eliminating the need to check for any forgotten cables, greatly improving convenience. The connecting strap design further enhances portability, making it easy to hold or hang. The entire solution achieves ultimate storage while maintaining ease of operation (simply pull to use).

[0014] Third, it possesses significant market competitive advantages: This invention directly addresses the core user pain point of current portable charging products—"easy to carry, difficult to manage cables"—providing a truly "complete storage" solution. This highly integrated and innovative design not only enhances product practicality but also constitutes a distinctive product differentiation feature, strengthening its attractiveness in market competition.

[0015] Furthermore, the wireless charging device that is easy to store also includes a coil bracket, which is embedded in the first housing. The first charging component includes a first charging coil, a first PCB board, and a first wire. The first charging coil is placed inside the coil bracket, and the first PCB board is placed inside the first housing. The coil bracket has a first wire through hole. One end of the first wire is electrically connected to the first charging coil, and the other end of the first wire passes through the first wire through hole and is electrically connected to the first PCB board.

[0016] Preferably, the first charging coil can charge a mobile phone, tablet, or headphones. In other embodiments, the first charging coil can also charge a smartwatch.

[0017] Furthermore, the wireless charging device that is easy to store also includes a recessed bracket, which is embedded in the second housing and recessed downward to form a storage space.

[0018] Furthermore, the second charging component includes a flip-up housing and a second charging coil, with the second charging coil placed inside the flip-up housing; the flip-up housing is movably connected to a recessed bracket, and the flip-up housing is movably disposed in the storage space.

[0019] In one application scenario, the flip-up housing can be flipped onto the recessed support to adjust the angle of the flip-up housing, thereby adjusting the angle of the second charging coil. Preferably, the second charging coil can charge a smartwatch. In other embodiments, the second charging coil can also charge a mobile phone, tablet, or headphones.

[0020] Furthermore, the recessed bracket has a connecting through hole, and a first connector is disposed inside the second housing.

[0021] The flip-out housing extends to have a second connector, which passes through a connection hole and is movably connected to the first connector.

[0022] Furthermore, the second charging component also includes a second PCB board and a second wire. The second PCB board is placed inside the second housing. The second connector has a second wire through hole. One end of the second wire is electrically connected to the second charging coil, and the other end of the second wire passes through the second wire through hole and is electrically connected to the second PCB board.

[0023] Furthermore, the easily stored wireless charging device also includes a first adsorption element and a second adsorption element. The coil support has a first receiving groove, and the recessed support has a second receiving groove. The first and second receiving grooves are correspondingly arranged. The first adsorption element is embedded in the first receiving groove, and the second adsorption element is embedded in the second receiving groove. The first adsorption element can be a magnet or a magnetic metal, and the second adsorption element can also be a magnet or a magnetic metal. It should be noted that at least one of the first and second adsorption elements is a magnet.

[0024] In one application scenario, the connecting strip is folded, the first housing and the second housing are abutted against each other, and the first magnet and the second magnet attract each other, so that the first housing and the second housing remain in abutting against each other.

[0025] Furthermore, the retractable telescopic cable module includes a telescopic cable housing, which is placed inside a first housing. The outer surface of the telescopic cable housing is provided with conductive contacts, which are electrically connected to the first PCB board.

[0026] Furthermore, the retractable telescopic cable module also includes a cable and a first interface. The first housing has a cable through-hole, the cable is wound inside the telescopic cable housing, one end of the cable extends out of the telescopic cable housing, and the other end of the cable passes through the cable through-hole and is electrically connected to the first interface. The user can pull the cable out of the telescopic cable housing.

[0027] Furthermore, the wireless charging device that is easy to store also includes an interface limiting member. The interface limiting member is embedded in the through hole of the wire. The interface limiting member has an interface groove and a limiting through hole. One end of the wire passes through the limiting through hole. The first interface is movably disposed in the interface groove. The limiting through hole is used to abut against the first interface.

[0028] Furthermore, the first housing has a first connecting strip through hole, and the second housing has a second connecting strip through hole. One end of the connecting strip passes through the first connecting strip through hole and is electrically connected to the first PCB board, and the other end of the connecting strip passes through the second connecting strip through hole and is electrically connected to the second PCB board, or...

[0029] The first housing has a first connecting strip through-hole, and the second housing has a second connecting strip through-hole. One end of the connecting strip passes through the first connecting strip through-hole and is electrically connected to the first PCB board, and the other end of the connecting strip passes through the second connecting strip through-hole and is electrically connected to the second PCB board. At least one of the first and second housings is provided with an extension connection portion. The extension connection portion is used to connect to other housings. Preferably, the extension connection portion can be either the first connecting strip through-hole or the second connecting strip through-hole. In other embodiments, the extension connection portion can also be other through-holes that can be used to extend and connect to other housing structures, such as protrusions, grooves, magnetic suction components, etc.

[0030] Furthermore, the second housing has an interface through-hole, and the second charging assembly also includes a second interface disposed within the interface through-hole. The second interface is electrically connected to the second PCB board. In some embodiments, the second interface serves as the main power input interface of the wireless charging device.

[0031] A second aspect of this application provides a charging method for a wireless charging device, applicable to a wireless charging device that is easy to store, the method comprising:

[0032] The wireless charging device charges the first electronic device through a first charging component, a second charging component, or a retractable cable module.

[0033] And / or,

[0034] The wireless charging device charges the first electronic device and the second electronic device respectively through the first charging component and the second charging component.

[0035] And / or,

[0036] The wireless charging device charges the first electronic device and the second electronic device respectively through the first charging component and the retractable cable module.

[0037] And / or,

[0038] The wireless charging device charges the first electronic device and the second electronic device respectively through the second charging component and the retractable cable module.

[0039] And / or,

[0040] The wireless charging device charges the first electronic device, the second electronic device, and the third electronic device through the first charging component, the second charging component, and the retractable cable module, respectively.

[0041] Compared with the prior art, the beneficial effects of the present invention are:

[0042] First, it achieves integrated and deep storage of the cable and device, completely solving the pain point of separate carrying: This invention integrates the retractable cable module into the first housing, making the cable no longer a separate, easily lost accessory, but an integral part of the product. When not in use, the cable can be completely retracted and hidden inside the device, achieving a clean "wireless" appearance and carrying experience, fundamentally solving the problem of users needing to separately manage and store charging cables.

[0043] Secondly, overall portability and user experience have been optimized: by integrating the cable management function into the product itself, users only need to carry a single device when traveling, eliminating the need to check for any forgotten cables, greatly improving convenience. The connecting strap design further enhances portability, making it easy to hold or hang. The entire solution achieves ultimate storage while maintaining ease of operation (simply pull to use).

[0044] Third, it possesses significant market competitive advantages: This invention directly addresses the core user pain point of current portable charging products—"easy to carry, difficult to manage cables"—providing a truly "complete storage" solution. This highly integrated and innovative design not only enhances product practicality but also constitutes a distinctive product differentiation feature, strengthening its attractiveness in market competition. Attached Figure Description

[0045] Figure 1 This is a structural diagram of a wireless charging device with its flip-up casing for easy storage.

[0046] Figure 2 This is a structural diagram of a wireless charging device with a flip-up, closed casing for easy storage.

[0047] Figure 3 yes Figure 2 A sectional view.

[0048] Figure 4 yes Figure 1 A structural diagram from another perspective.

[0049] Figure 5 This is a structural diagram of the hidden part of a wireless charging device that is easy to store.

[0050] Figure 6 This is a structural diagram of the hidden part of a wireless charging device that is easy to store.

[0051] Figure 7 This is a structural diagram of the hidden part of a wireless charging device that is easy to store.

[0052] Figure 8 This is a structural diagram of the hidden part of a wireless charging device that is easy to store.

[0053] Figure 9 This is a structural diagram of the hidden part of a wireless charging device that is easy to store.

[0054] Figure 10 This is a structural diagram of the hidden part of a wireless charging device that is easy to store.

[0055] In the diagram: 1. First housing; 2. Second housing; 3. Retractable telescopic cable module; 4. Connecting strap; 5. First charging component; 6. Second charging component; 7. Coil bracket; 51. First charging coil; 52. First PCB board; 71. First wire through hole; 8. Recessed bracket; 81. Storage space; 61. Flip-up housing; 62. Second charging coil; 82. Connecting through hole; 21. First connector; 65. Second connector; 63. Second PCB board; 64. Two wires; 651, second wire through hole; 91, first magnet; 92, second magnet; 72, first receiving groove; 73, second receiving groove; 31, telescopic cable housing; 32, third wire; 311, conductive contact; 33, wire; 34, first interface; 12, wire through hole; 35, interface limiting component; 351, interface groove; 352, limiting through hole; 11, first connecting strip through hole; 22, second connecting strip through hole; 66, second interface; 23, interface through hole. Detailed Implementation

[0056] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0057] To achieve the above objectives, the technical solution of the present invention is as follows:

[0058] See Figures 1-10As shown, the first aspect of the present invention provides a wireless charging device that is easy to store. The wireless charging device includes a first housing 1, a second housing 2, a retractable cable module 3, a connecting strap 4, a first charging component 5, and a second charging component 6.

[0059] The first charging component 5 is placed inside the first housing 1, and the second charging component 6 is placed inside the second housing 2. The first housing 1 and the second housing 2 are connected by a connecting strap 4.

[0060] The retractable cable module 3 is placed inside the first housing 1 and is electrically connected to the first charging component 5. The retractable cable module 3 is used for charging output or power input. Specifically, charging output means that the wireless charging device charges other electronic devices through the retractable cable module 3, and power input means that the power source charges the wireless charging device through the retractable cable module 3.

[0061] The connecting strap 4 is foldable, allowing the first housing 1 and the second housing 2 to abut against each other, thereby reducing the space occupied by the wireless charging device.

[0062] Compared with the prior art, the beneficial effects of the present invention are:

[0063] First, it achieves integrated and deep storage of the cable 33 and the device, completely solving the pain point of separate carrying: This invention integrates the retractable cable module 3 into the first housing 1, making the cable 33 no longer a separate, easily lost accessory, but an inseparable part of the product. When not in use, the cable 33 can be completely retracted and hidden inside the device, achieving a clean, wireless appearance and carrying experience, fundamentally solving the problem of users needing to separately manage and store charging cables.

[0064] Secondly, overall portability and user experience have been optimized: by integrating the cable management function into the product itself, users only need to carry a single device when traveling, eliminating the need to check for any forgotten cables, greatly improving convenience. The design of the connecting strap 4 further enhances portability, making it easy to hold or hang. The entire solution achieves ultimate storage while maintaining ease of operation (simply pull to use).

[0065] Third, it possesses significant market competitive advantages: This invention directly addresses the core user pain point of current portable charging products—"easy to carry, but difficult to manage cables"—providing a truly "complete storage" solution. This highly integrated and innovative design not only enhances product practicality but also constitutes a distinctive product differentiation feature, strengthening its attractiveness in market competition.

[0066] Furthermore, the wireless charging device that is easy to store also includes a coil bracket 7, which is embedded in the first housing 1. The first charging component 5 includes a first charging coil 51, a first PCB board 52, and a first wire (not shown). The first charging coil 51 is placed inside the coil bracket 7, and the first PCB board 52 is placed inside the first housing 1. The coil bracket 7 has a first wire through hole 71. One end of the first wire is electrically connected to the first charging coil 51, and the other end of the first wire passes through the first wire through hole 71 and is electrically connected to the first PCB board 52.

[0067] Preferably, the first charging coil 51 can charge a mobile phone or tablet. In other embodiments, the first charging coil 51 can also charge a smartwatch.

[0068] Furthermore, the wireless charging device that is easy to store also includes a recessed bracket 8, which is embedded in the second housing 2 and recessed downward to form a storage space 81.

[0069] Furthermore, the second charging component 6 includes a flip-up housing 61 and a second charging coil 62, with the second charging coil 62 placed inside the flip-up housing 61; the flip-up housing 61 is movably connected to the recessed bracket 8, and the flip-up housing 61 is movably disposed in the storage space 81.

[0070] In one application scenario, the flip-up housing 61 can be flipped and mounted on the recessed bracket 8 to adjust the angle of the flip-up housing 61, thereby adjusting the angle of the second charging coil 62. Preferably, the second charging coil 62 can charge a smartwatch. In other embodiments, the second charging coil 62 can also charge a mobile phone or tablet.

[0071] Furthermore, the recessed bracket 8 has a connecting through hole 82, and a first connector 21 is provided inside the second housing 2.

[0072] The flip-out housing 61 has a second connector 65 extending out, which passes through the connection through hole 82 and is movably connected to the first connector 21.

[0073] Furthermore, the second charging component 6 also includes a second PCB board 63 and a second wire 64. The second PCB board 63 is placed inside the second housing 2. The second connector 65 has a second wire through hole 651. One end of the second wire 64 is electrically connected to the second charging coil 62, and the other end of the second wire 64 passes through the second wire through hole 651 and is electrically connected to the second PCB board 63.

[0074] Furthermore, the wireless charging device that is easy to store also includes a first magnet 91 and a second magnet 92. The coil support 7 forms a first receiving groove 72, and the recessed support 8 forms a second receiving groove 73. The first receiving groove 72 and the second receiving groove 73 are arranged correspondingly. The first magnet 91 is embedded in the first receiving groove 72, and the second magnet 92 is embedded in the second receiving groove 73.

[0075] In one application scenario, the connecting strap is folded, the first housing 1 and the second housing 2 are in contact with each other, and the first magnet 91 and the second magnet 92 attract each other, so that the first housing 1 and the second housing 2 remain in contact with each other.

[0076] Furthermore, the retractable telescopic cable module 3 includes a telescopic cable housing 31 and a third conductor 32. The telescopic cable housing 31 is placed inside the first housing 1. The outer surface of the telescopic cable housing 31 is provided with conductive contacts 311. One end of the third conductor 32 is electrically connected to the conductive contacts 311, and the other end of the third conductor 32 is electrically connected to the first PCB board 52.

[0077] Furthermore, the retractable telescopic cable module 3 also includes a cable 33 and a first interface 34. The first housing 1 has a cable through hole 12. The cable 33 is wound inside the telescopic cable housing 31, with one end of the cable 33 extending out of the telescopic cable housing 31 and the other end passing through the cable through hole 12 and electrically connected to the first interface 34. The user can pull out the cable 33, allowing it to extend from the telescopic cable housing 31.

[0078] Furthermore, the wireless charging device that is easy to store also includes an interface limiting member 35. The interface limiting member 35 is embedded in the wire through hole 12. The interface limiting member 35 forms an interface groove 351 and a limiting through hole 352. One end of the wire 33 passes through the limiting through hole 352. The first interface 34 is movably disposed in the interface groove 351. The limiting through hole 352 is used to abut against the first interface 34.

[0079] Furthermore, the first housing 1 has a first connecting strip through hole 11, and the second housing 2 has a second connecting strip through hole 22. One end of the connecting strip 4 passes through the first connecting strip through hole 11 and is electrically connected to the first PCB board 52, and the other end of the connecting strip 4 passes through the second connecting strip through hole 22 and is electrically connected to the second PCB board 63.

[0080] Furthermore, the second housing 2 has an interface through hole 23, and the second charging component 6 also includes a second interface 66, which is disposed in the interface through hole 23 and is electrically connected to the second PCB board 63.

[0081] A second aspect of this application provides a charging method for a wireless charging device, applicable to a wireless charging device that is easy to store, the method comprising:

[0082] The wireless charging device charges the first electronic device via the first charging component 5, the second charging component 6, or the retractable cable module 3.

[0083] And / or,

[0084] The wireless charging device charges the first electronic device and the second electronic device respectively through the first charging component 5 and the second charging component 6.

[0085] And / or,

[0086] The wireless charging device charges the first electronic device and the second electronic device respectively through the first charging component 5 and the retractable cable module 3.

[0087] And / or,

[0088] The wireless charging device charges the first electronic device and the second electronic device respectively through the second charging component 6 and the retractable cable module 3.

[0089] And / or,

[0090] The wireless charging device charges the first electronic device, the second electronic device, and the third electronic device through the first charging component 5, the second charging component 6, and the retractable cable module 3, respectively.

[0091] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A wireless charging device that is easy to store, characterized in that, The wireless charging device includes a first housing, a second housing, a retractable cable module, a connecting strap, a first charging component, and a second charging component. The first charging component is placed inside the first housing, and the second charging component is placed inside the second housing. The first housing and the second housing are connected by a connecting strip. The retractable telescopic cable module is placed inside the first housing and is electrically connected to the first charging component. The retractable telescopic cable module is used for charging output or power input.

2. The wireless charging device for easy storage as described in claim 1, characterized in that, The wireless charging device that is easy to store also includes a coil bracket, which is embedded in the first housing. The first charging component includes a first charging coil, a first PCB board and a first wire. The first charging coil is placed inside the coil bracket and the first PCB board is placed inside the first housing. The coil bracket has a first wire through hole. One end of the first wire is electrically connected to the first charging coil and the other end of the first wire passes through the first wire through hole and is electrically connected to the first PCB board.

3. The wireless charging device for easy storage as described in claim 2, characterized in that, The easy-to-store wireless charging device also includes a recessed bracket, which is embedded in the second housing and recessed downwards to form a storage space.

4. The wireless charging device for easy storage as described in claim 3, characterized in that, The second charging component includes a flip-up housing and a second charging coil, with the second charging coil placed inside the flip-up housing. The flip-up housing is movably connected to a recessed bracket and is movably positioned within a storage space.

5. The wireless charging device for easy storage as described in claim 4, characterized in that, The recessed bracket has a connecting through hole, and a first connector is disposed inside the second housing. The flip-out housing extends to have a second connector, which passes through a connection hole and is movably connected to the first connector.

6. The wireless charging device for easy storage as described in claim 5, characterized in that, The second charging component also includes a second PCB board and a second wire. The second PCB board is placed inside the second housing. The second connector has a through hole for the second wire. One end of the second wire is electrically connected to the second charging coil, and the other end of the second wire passes through the through hole and is electrically connected to the second PCB board.

7. The wireless charging device for easy storage as described in claim 3, characterized in that, The wireless charging device that is easy to store also includes a first adsorption element and a second adsorption element. The coil bracket forms a first receiving groove, and the recessed bracket forms a second receiving groove. The first receiving groove and the second receiving groove are arranged correspondingly. The first adsorption element is embedded in the first receiving groove, and the second adsorption element is embedded in the second receiving groove.

8. The wireless charging device for easy storage as described in claim 1, characterized in that, The retractable telescopic cable module includes a telescopic cable housing, which is placed inside a first housing. The outer surface of the telescopic cable housing is provided with conductive contacts, which are electrically connected to a first PCB board.

9. The wireless charging device for easy storage as described in claim 6, characterized in that, The first housing has a first connecting strip through-hole, and the second housing has a second connecting strip through-hole. One end of the connecting strip passes through the first connecting strip through-hole and is electrically connected to the first PCB board, and the other end of the connecting strip passes through the second connecting strip through-hole and is electrically connected to the second PCB board, or... The first housing has a first connecting strip through hole, and the second housing has a second connecting strip through hole. One end of the connecting strip passes through the first connecting strip through hole and is electrically connected to the first PCB board, and the other end of the connecting strip passes through the second connecting strip through hole and is electrically connected to the second PCB board. At least one of the first housing and the second housing is provided with an extension connection part.

10. A charging method for a wireless charging device, applied to the easily stored wireless charging device as described in any one of claims 1-9, characterized in that, The method includes: The wireless charging device charges the first electronic device through a first charging component, a second charging component, or a retractable cable module. And / or, The wireless charging device charges the first electronic device and the second electronic device respectively through the first charging component and the second charging component. And / or, The wireless charging device charges the first electronic device and the second electronic device respectively through the first charging component and the retractable cable module. And / or, The wireless charging device charges the first electronic device and the second electronic device respectively through the second charging component and the retractable cable module. And / or, The wireless charging device charges the first electronic device, the second electronic device, and the third electronic device through the first charging component, the second charging component, and the retractable cable module, respectively.