A multifunctional wireless charging device

Abstract

The utility model discloses a kind of multifunctional wireless charging equipment, comprising: top seat, with first charging contact surface;Base, inside is equipped with cavity, second charging contact surface is equipped in cavity, and cavity has opening on base, opening is equipped with the cavity door of movable connection, third charging contact surface is equipped on cavity door;The present application can realize three electronic devices charging simultaneously on the same equipment, for example, place mobile phone on top seat, receive wireless earphone in cavity, and unfold cavity door to support smart watch.Three charging areas do not interfere with each other and have high space utilization, effectively solve the defect that traditional equipment charging surface is single, significantly improve use efficiency and reduce the charging cost of multiple equipment users.

Description

Technical Field

[0001] This utility model relates to the field of wireless charging, and in particular to a multifunctional wireless charging device. Background Technology

[0002] Wireless charging technology, originating from wireless power transmission technology, can be divided into two types: low-power wireless charging and high-power wireless charging.

[0003] Low-power wireless charging often uses electromagnetic induction, such as the Qi method for charging mobile phones, but ZTE's wireless charging method for electric vehicles uses inductive [1]. High-power wireless charging often uses resonant charging (most electric vehicles use this method). The power supply device (charger) transmits energy to the device that uses the power, which uses the received energy to charge the battery and simultaneously power its own operation.

[0004] Since energy is transferred between the charger and the device via a magnetic field, and no wires are needed to connect them, both the charger and the device can be designed without any exposed conductive contacts.

[0005] Currently, most traditional wireless charging devices are equipped with only a single charging contact surface, allowing only one electronic device (such as a mobile phone) to be charged at a time, which cannot meet the user's need to charge multiple different devices simultaneously. This design has obvious limitations in practical use, especially in scenarios where multiple devices such as mobile phones, wireless headphones, and smartwatches need to be charged at the same time. Users have to charge them in turn or purchase multiple chargers, which reduces efficiency and increases costs. Utility Model Content

[0006] To overcome the shortcomings of existing technologies, where most traditional wireless charging devices are equipped with only a single charging contact surface and can only charge one electronic device (such as a mobile phone) at a time, thus failing to meet the user's need to charge multiple different devices simultaneously, this utility model provides a multifunctional wireless charging device, comprising:

[0007] The top base is provided with a first charging contact surface;

[0008] The base has an internal cavity with a second charging contact surface inside. The cavity has an opening on the base, and a movable door is provided at the opening. The door has a third charging contact surface.

[0009] Optionally, the top base includes a first housing, inside which a first charging component is provided. The first charging component includes a first charging coil and a first magnetic ring. A first charging contact surface is disposed on the top of the first housing, and the first charging component is disposed inside the first housing.

[0010] Optionally, the base includes a second housing, a cavity is installed inside the second housing, and a second charging component is provided inside the second housing. The second charging component includes a second charging coil and a second magnetic ring, and the cavity is located above the second charging component.

[0011] Optionally, the opening edge is provided with a pivot, and the cavity is connected to the pivot.

[0012] Optionally, a third charging component is provided inside the cavity, which includes a third charging coil and a third magnetic ring.

[0013] Optionally, the second housing includes an upper cover and a lower cover, which are detachably connected.

[0014] Optionally, the second housing contains a PCB board, which is electrically connected to the first charging component, the second charging component, and the third charging component.

[0015] Optionally, the cavity door is provided with a connecting part, one side of which is provided with a shaft hole, the rotating shaft is located in the shaft hole, and the other end of the connecting part is provided with a wire hole, which communicates with the interior of the cavity door.

[0016] Optionally, a charging interface is provided on the PCB board, and a through hole is provided on the surface of the second housing, with the charging interface located inside the through hole.

[0017] Optionally, the second housing surface is provided with control buttons, and the PCB board is provided with control components, which are connected to the buttons.

[0018] The beneficial effects of this utility model are: This application enables simultaneous charging of three electronic devices on the same device, such as placing a mobile phone on the top seat, storing wireless earphones inside the cavity, and supporting a smartwatch when the cavity door is opened. The three charging areas do not interfere with each other and have high space utilization, effectively solving the defect of the single charging surface of traditional devices, significantly improving usage efficiency and reducing charging costs for users with multiple devices. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Figure 1 These are assembly diagrams from some embodiments;

[0021] Figure 2 These are exploded views of some embodiments;

[0022] Figure 3 These are exploded views of the top seat in some embodiments;

[0023] Figure 4 These are exploded views of the base in some embodiments;

[0024] Figure 5 These are schematic diagrams of the cavity gate structure in some embodiments.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1. Top base; 101. First charging contact surface; 2. Base; 201. Cavity; 202. Second charging contact surface; 3. Cavity door; 102. First housing; 103. First charging coil; 104. First magnetic ring; 203. Second housing; 204. Second charging coil; 205. Second magnetic ring; 206. Rotating shaft; 207. Top cover; 208. Bottom cover; 209. Middle housing; 210. PCB board; 301. Connecting part; 302. Shaft hole; 303. Wire hole; 304. Third charging contact surface; 211. Charging interface; 212. Control button; 213. Control element. Detailed Implementation

[0027] The following will clearly and completely describe the concept, specific structure, and technical effects of this utility model in conjunction with embodiments and accompanying drawings, so as to fully understand the purpose, features, and effects of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are all within the scope of protection of this utility model. Furthermore, all connections / linkages involved in the patent do not simply refer to direct contact between components, but rather to the ability to form a better connection structure by adding or reducing connecting accessories according to specific implementation conditions. The various technical features in this utility model can be combined interactively without contradicting each other.

[0028] In existing technologies, wireless charging achieves contactless charging by transferring energy through magnetic fields. However, traditional devices only have a single charging contact surface, preventing users from charging multiple electronic devices simultaneously. When charging mobile phones, wireless earphones, and smartwatches, the charging operation must be performed sequentially. This not only reduces efficiency but also forces consumers to purchase multiple chargers, resulting in resource waste and increased usage costs.

[0029] To address the aforementioned issues, researchers observed the increasing demand for multi-device charging and began exploring how to integrate multiple charging areas within a limited space. Analysis of the structural limitations of traditional devices revealed that a single planar layout could not meet the demands of three-dimensional charging. This led to the idea of ​​dividing the charging area into a combination of horizontal and vertical directions. A hidden charging cavity 201 was added inside the base 2, and the external charging surface was expanded using movable components.

[0030] Therefore, this application proposes a multifunctional wireless charging device, including a top base 1 with a first charging contact surface 101, a base 2 with a cavity 201 having a second charging contact surface 202 inside, a cavity door 3 movably connected at the opening of the cavity 201, and a third charging contact surface 304 on the surface of the cavity door 3.

[0031] The top seat 1 refers to the support structure located on top of the device, which can be implemented using an injection-molded plastic shell. Its top plane forms the first charging contact surface 101 for placing the device to be charged. The base 2 refers to the main structure supporting the cavity 201, which can be implemented using a split shell design. The internal cavity 201 space is used to accommodate the electronic device in a folded state. The cavity door 3 refers to the movable cover plate covering the opening of the cavity 201, which can be implemented using a flip-top structure connected by a pivot 206. When closed, it protects the device inside the cavity 201, and when unfolded, it forms an inclined support surface.

[0032] Specifically, the first charging contact surface 101 of the top seat 1 maintains a conventional horizontal charging mode, while the second charging contact surface 202 within the cavity 201 of the base 2 provides an independent charging space for small devices through a concealed layout. When the cavity door 3 is opened to a specific angle via the pivot 206, its third charging contact surface 304 forms an inclined support surface, which can serve as a phone stand for vertical charging and also create a staggered layout with the first charging contact surface 101 on the top. Through spatial layering design, the three charging contact surfaces form a main charging area on the horizontal plane and expand an auxiliary charging area in the vertical direction, thereby enabling simultaneous charging of multiple devices.

[0033] Compared to existing technologies, traditional solutions utilize only a single plane on the top of the device for charging. This solution, through the combined design of the base 2 cavity 201 and the movable door 3, forms three independent charging surfaces stacked vertically. Existing technologies cannot expand the external charging area while protecting the built-in device. This solution, through the movable connection structure of the door 3, maintains the charging stability of the device inside the cavity 201 and creates additional charging support surfaces through a flipping action.

[0034] Through the above technical solution, this application enables simultaneous charging of three electronic devices on the same device. For example, a mobile phone can be placed on the top seat 1, wireless earphones can be stored in the cavity 201, and a smartwatch can be supported by the unfolded cavity 3. The three charging areas do not interfere with each other and have high space utilization, effectively solving the shortcomings of traditional devices with a single charging surface, significantly improving usage efficiency and reducing charging costs for users with multiple devices.

[0035] The first housing 102 refers to the load-bearing component constituting the main structure of the top base 1. It can be a high-strength plastic housing manufactured using injection molding, and its internal space is used to accommodate the charging components and form electromagnetic shielding. The first charging coil 103 is a planar helical coil wound with enameled wire, specifically formed by winding copper wire, which generates an induced magnetic field through alternating current. The first magnetic ring 104 is a ring-shaped magnetic conductor made of ferrite material, specifically formed by sintering nickel-zinc ferrite, used to constrain the magnetic field distribution and enhance coupling efficiency. The first charging contact surface 101 is a planar area located on the top of the first housing 102, specifically formed by covering the coil area with polycarbonate material, serving as the energy transmission interface for wireless charging.

[0036] Specifically, the first housing 102 serves as the main support structure of the top mount 1, and its internal space is designed to simultaneously support the charging assembly and maintain the housing's strength. The first charging coil 103 is fixed to the top inner side of the first housing 102, its planar extension direction parallel to the first charging contact surface 101, ensuring that the magnetic field effectively covers the charging area. The first magnetic ring 104 surrounds the first charging coil 103, using a magnetically conductive material to confine the magnetic field vertically, reducing energy leakage to the sides of the housing. The first charging contact surface 101, through the non-conductive properties of the top material of the housing, allows the magnetic field to penetrate and couple with the coil of the powered device. The entire charging assembly is sealed within the first housing 102, preventing physical damage to the coil and magnetic ring from the external environment.

[0037] In some embodiments, the base 2 includes a second housing 203, a cavity 201 is installed inside the second housing 203, a second charging component is provided inside the second housing 203, the second charging component includes a second charging coil 204 and a second magnetic ring 205, and the cavity 201 is located above the second charging component.

[0038] The second housing 203 is a layered structural component independent of the first housing 102. It can be made of injection-molded plastic and serves to construct the layered space inside the base 2, providing a mounting base for the cavity 201 and the second charging assembly. The cavity 201 is the accommodating space inside the second housing 203, formed by molding. It has a movable cavity door 3 at the opening for placing the device to be charged and engaging with the second charging contact surface 202. The second charging assembly is a wireless charging module consisting of a second charging coil 204 and a second magnetic ring 205. It can be made by combining a copper coil and a ferrite magnetic ring, generating an alternating magnetic field through electromagnetic induction to provide wireless charging for the device inside the cavity 201. The second charging coil 204 is a ring-shaped conductor, formed by winding multiple strands of enameled wire, used to generate an alternating magnetic field when energized. The second magnetic ring 205 is a ring-shaped magnetic material, made of sintered ferrite material, used to enhance the directional conduction efficiency of the magnetic field and reduce energy loss.

[0039] Specifically, the second housing 203 and the first housing 102 form a layered structure. The second charging component is fixed inside the second housing 203, and the cavity 201 is located directly above the second charging component. When the device to be charged is placed inside the cavity 201, the alternating magnetic field generated by the second charging coil 204 is transmitted to the device receiving end through the second charging contact surface 202 at the bottom of the cavity 201, and the second magnetic ring 205 concentrates and directs the magnetic field to the internal area of ​​the cavity 201. The vertical arrangement of the cavity 201 and the second charging component allows the charging area and the device housing space to be vertically superimposed, achieving functional zoning within the limited height of the base 2. At the same time, the second housing 203, as an independent structure, has its internal space completely isolated from the first charging component in the first housing 102, avoiding mutual interference of magnetic fields.

[0040] In some embodiments, the edge of the opening is provided with a pivot 206, and the cavity 3 is connected to the pivot 206.

[0041] The rotating shaft 206 is a cylindrical mechanical component that provides rotational support. It can be made of metal or high-strength plastic and is fixed to the edge of the opening via a hinge structure. This rotating shaft 206 serves as a fulcrum, enabling the cavity door 3 to rotate around the shaft and open and close, replacing traditional sliding or snap-fit ​​structures. The connection between the cavity door 3 and the rotating shaft 206 refers to the cavity door 3 being assembled onto the rotating shaft 206 through a mating mechanism with a shaft hole 302. Specifically, this can be achieved by having the shaft hole 302 in the cavity door 3's connecting part 301 fit onto the rotating shaft 206. This connection method constrains the opening and closing trajectory of the cavity door 3 to the rotating shaft 206, preventing jamming caused by movement deviation.

[0042] Specifically, the pivot 206 at the edge of the opening is fixed to the housing of the base 2, and the cavity door 3 is sleeved on the outer surface of the pivot 206 through the shaft hole 302 of the connecting part 301. When an external force is applied, the cavity door 3 rotates around the axis of the pivot 206 to open or close. A small gap is maintained between the pivot 206 and the shaft hole 302 to ensure smooth rotation without the risk of loosening. When the cavity door 3 is closed, its third charging contact surface 304 forms a sealed fit with the opening of the base 2; when open, the cavity door 3 rotates to a preset angle and then stops, making it convenient for the user to pick up and put down the device to be charged.

[0043] In some embodiments, a third charging component (not shown in the figure) is provided inside the cavity 3, the third charging component including a third charging coil and a third magnetic ring.

[0044] The third charging component refers to a modular structure embedded inside the cavity 3 to achieve wireless charging. Specifically, it can be implemented using a combination of an integrated coil and a magnet, transforming the cavity 3 into an independent charging area. The third charging coil is a ring-shaped conductor that transmits electrical energy through electromagnetic induction. It can be implemented using a flat winding structure to create an effective magnetic field covering the surface of the cavity 3. The third magnetic ring is a magnetically conductive material surrounding the charging coil, which can be implemented using a ferrite core. It enhances magnetic field coupling efficiency and assists in the positioning and adsorption of the device to be charged.

[0045] Specifically, a third charging coil is arranged inside the cavity 3, and the alternating magnetic field it generates transfers energy to the device to be charged through the third charging contact surface 304 on the outer surface of the cavity 3. A third magnetic ring surrounds the third charging coil, improving energy transfer efficiency through concentrated magnetic field distribution, while using magnetic attraction to maintain stable contact between the device to be charged and the third charging contact surface 304. When the cavity 3 is closed, the third charging contact surface 304 and the first charging contact surface 101 on the top of the base 2 form two independent charging areas; when the cavity 3 is open, the second charging contact surface 202 inside the cavity 201 and the third charging contact surface 304 form a stacked charging space. Thus, the movable structure of the cavity 3 is transformed into a functional charging carrier, realizing the spatial reuse of the three charging contact surfaces.

[0046] In some embodiments, the second housing 203 includes an upper cover 207 and a lower cover 208, which are detachably connected.

[0047] The upper cover 207 refers to the housing component covering the top of the middle cover 209. It can be made of injection-molded plastic or stamped metal, and its edges have snap-fit ​​or threaded holes that match the middle cover 209 for detachable connection. The lower cover 208 refers to the housing component covering the bottom of the middle cover 209. It can be made of the same material and with the same connection method as the upper cover 207, and has an internal support structure to secure the second charging component. The middle cover 209 refers to the intermediate housing component located between the upper cover 207 and the lower cover 208. It can be a split frame structure with an internal cavity 201 mounting slot for securing the second charging component and the cavity 201. The detachable connection refers to a physical connection achieved through snap-fit, threaded, or magnetic means. Specifically, it can use snap-fit ​​engagement or screw fixation, allowing the upper cover 207 and the lower cover 208 to be separated to expose the internal structure.

[0048] Specifically, the upper cover 207 and the lower cover 208 are fixed to the top and bottom of the middle shell 209 by clips or screws, forming a complete second shell 203 structure. When maintenance or replacement of internal components is required, the upper cover 207 or the lower cover 208 can be separated by releasing the clips or loosening the screws, thereby directly contacting the cavity 201 and the second charging component. The detachable connection method ensures structural stability when the shell is closed, while providing the possibility of segmented installation during the assembly process. For example, the second charging component can be fixed to the middle shell 209 first, and then the upper cover 207 and the lower cover 208 can be installed.

[0049] In some embodiments, a PCB board 210 is provided inside the second housing 203, and the PCB board 210 is electrically connected to the first charging component, the second charging component, and the third charging component respectively.

[0050] The PCB board 210 refers to a printed circuit board, which can be implemented by laminating a multilayer composite substrate with copper foil circuitry. It integrates control circuitry and signal transmission paths. Its function is to establish the power distribution logic among the three charging components and achieve dynamic power adjustment through a preset program. Electrical connection refers to establishing an electrical path through a conductive medium, which can be achieved through flexible ribbon cable soldering or metal contact mating. Its function is to enable signal interaction between the input / output terminals of the three charging components and the control port of the PCB board 210, providing a physical link for coordinating multi-channel charging. The top seat 1, base 2, and cavity door 3 are each provided with wire holes 303 for wires to pass through, facilitating electrical connection between the PCB board 210 and the first, second, and third charging components, respectively.

[0051] Specifically, PCB board 210 is configured to receive external power input and transmit electrical energy to the three charging components through a built-in current distribution module. When multiple devices are placed on the charging contact surfaces of the top seat 1, base 2, and cavity door 3, PCB board 210 dynamically adjusts the current parameters output to the first charging coil 103, the second charging coil 204, and the third charging coil by detecting the load status of each charging coil. For example, when only one device is connected, PCB board 210 can shut down the power supply circuits of the other two charging components to reduce power consumption; when all three devices are connected simultaneously, PCB board 210 allocates the output power of each circuit according to a preset priority algorithm. Thus, the three charging components work collaboratively under the centralized control of PCB board 210, avoiding a decrease in charging efficiency due to electromagnetic field superposition.

[0052] In some embodiments, the cavity 3 is provided with a connecting part 301, a shaft hole 302 is provided on one side of the connecting part 301, the rotating shaft 206 is located in the shaft hole 302, and a wire hole 303 is provided at the other end of the connecting part 301, the wire hole 303 communicating with the interior of the cavity 3.

[0053] The connecting part 301 refers to the structural component extending from the edge of the cavity 3. It can be integrally molded with the cavity 3 using injection molding, serving to support the shaft hole 302 and the wire hole 303 and maintain the structural strength of the cavity 3 when it is opened and closed. The shaft hole 302 is a circular through hole located on one side of the connecting part 301, which can be achieved by embedding a metal bushing into the connecting part 301. It accommodates the rotating shaft 206 and restricts the rotation trajectory of the cavity 3. The wire hole 303 is a through hole located at the other end of the connecting part 301, which can be processed by laser cutting or mold forming. It guides the power supply line of the third charging component from inside the cavity 201 to inside the cavity 3.

[0054] Specifically, when the cavity door 3 rotates around the rotating shaft 206, the connecting part 301 achieves stable rotation through the engagement of the shaft hole 302 with the rotating shaft 206, preventing radial displacement during the opening and closing of the cavity door 3. Simultaneously, the power supply line of the third charging component passes through the wire hole 303 from inside the cavity 201 into the cavity door 3. When the cavity door 3 is closed, the line runs along the outside of the connecting part 301. When the cavity door 3 is open, it rotates synchronously with the connecting part 301. The bending portion of the line is confined within a fixed path between the wire hole 303 and the cavity 201, thus preventing damage to the line from repeated bending. The shaft holes 302 and wire holes 303 on both sides of the connecting part 301 form a spatial separation, ensuring that the supporting force of the rotating shaft 206 and the line routing path do not interfere with each other. This maintains the mechanical stability of the opening and closing action of the cavity door 3 and provides a protected passage for the internal lines.

[0055] In some embodiments, the PCB board 210 is provided with a charging interface 211, and the surface of the second housing 203 is provided with a through hole, with the charging interface 211 located inside the through hole.

[0056] Here, PCB board 210 refers to a printed circuit board, which can be implemented using FR-4 substrate laminate, used to integrate electronic components and establish circuit connections. Charging interface 211 refers to a power input port, which can be implemented using a USB Type-C interface, used to connect an external power cable. Second housing 203 refers to a structural component that encloses the charging assembly, which can be injection molded from ABS engineering plastic, used to protect the internal circuit components. Through hole refers to a hole structure that penetrates the housing, which can be implemented using CNC milling, used to expose the charging interface 211 on the housing surface.

[0057] Specifically, the charging interface 211 is integrated into the edge area of ​​the PCB board 210, and the position of the through hole corresponds spatially to the installation position of the charging interface 211. When the upper cover 207 and lower cover 208 of the second housing 203 are assembled, the insertion end of the charging interface 211 is precisely defined inside the through hole. During device assembly, the PCB board 210 is fixed in the mounting groove pre-set on the inner wall of the second housing 203 by positioning pins, with the metal contacts of the charging interface 211 facing outwards. The diameter of the through hole is slightly larger than the outer diameter of the charging interface 211, forming a clearance fit, allowing the charging interface 211 to remain stable when plugging and unplugging cables.

[0058] In some embodiments, the surface of the second housing 203 is provided with a control button 212, and the PCB board 210 is provided with a control element 213, which is connected to the button.

[0059] The control button 212 is a physical operating component used to trigger circuit control signals. It can be implemented using a mechanical button or a capacitive touch button, providing a user-friendly interface for coordinated control of multiple charging components. The control element 213 is an integrated circuit module used to receive and process button signals. It can be implemented using a microcontroller unit or logic gate circuits, converting button operations into electrical signals to adjust the operating state of the charging components. The mating refers to the physical connection between the control button 212 and the control element 213, which can be achieved using metal spring contact or conductive adhesive strip pressing. Its function is to establish a stable signal transmission path while ensuring the housing's airtightness.

[0060] Specifically, the user presses the control button 212 to generate mechanical displacement, triggering an electrical connection between the internal contact point and the control element 213. The control element 213 receives the signal and interprets it as a preset command, such as activating or deactivating power supply to a specific charging contact surface. The PCB board 210 transmits the control commands synchronously to the first charging component, the second charging component, and the third charging component through internal wiring, enabling independent or combined control of multiple charging contact surfaces. The separate layout of the control button 212 and the control element 213 physically isolates the button operation area from the circuit board, preventing electromagnetic interference from affecting signal stability while maintaining the overall sealed and protective performance of the housing structure.

[0061] The above is a detailed description of the preferred embodiments of the present utility model. However, the present utility model is not limited to the described embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present utility model. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A multifunctional wireless charging device, characterized in that, include: The top base is provided with a first charging contact surface; The base has an internal cavity with a second charging contact surface inside. The cavity has an opening on the base, and a movable door is provided at the opening. The door has a third charging contact surface.

2. The multifunctional wireless charging device according to claim 1, characterized in that, The top base includes a first housing, inside which a first charging component is provided. The first charging component includes a first charging coil and a first magnetic ring. A first charging contact surface is provided on the top of the first housing, and the first charging component is provided inside the first housing.

3. The multifunctional wireless charging device according to claim 2, characterized in that, The base includes a second housing, a cavity is installed inside the second housing, and a second charging component is provided inside the second housing. The second charging component includes a second charging coil and a second magnetic ring, and the cavity is located above the second charging component.

4. The multifunctional wireless charging device according to claim 1, characterized in that, The opening has a pivot at its edge, and the cavity is connected to the pivot.

5. The multifunctional wireless charging device according to claim 3, characterized in that, The cavity is equipped with a third charging component, which includes a third charging coil and a third magnetic ring.

6. The multifunctional wireless charging device according to claim 3, characterized in that, The second housing includes an upper cover and a lower cover, which are detachably connected.

7. The multifunctional wireless charging device according to claim 5, characterized in that, The second housing contains a PCB board, which is electrically connected to the first charging component, the second charging component, and the third charging component.

8. The multifunctional wireless charging device according to claim 1, characterized in that, The cavity is provided with a connecting part, one side of which is provided with a shaft hole, and the rotating shaft is located inside the shaft hole. The other end of the connecting part is provided with a wire hole, which communicates with the interior of the cavity.

9. The multifunctional wireless charging device according to claim 7, characterized in that, The PCB board has a charging interface, and the surface of the second housing has a through hole, with the charging interface located inside the through hole.

10. The multifunctional wireless charging device according to claim 7, characterized in that, The second housing surface is equipped with control buttons, and the PCB board is equipped with control components that interface with the buttons.

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