Wireless charging device

Abstract

The wireless charging device comprises a shell and a refrigerator arranged in the shell, the shell comprises a top cover and a bottom cover, and the top cover is used for placing charged equipment; the refrigerator is provided with a first face making contact with the top cover, a second face making contact with the bottom cover and a side face connected with the first face and the second face, and a wireless charging coil is wound around the side face. When a charged device needs to be charged, the charged device is placed on the top cover, a magnetic field is generated when the wireless charging coil is connected with a power supply, a current receiving coil in the charged device generates current, the charged device is charged, the refrigerator is also connected with the power supply when the charged device is charged, the temperature of the top surface of the refrigerator is reduced, and the charged device is charged. Heat can be absorbed from the outside, the temperature of the bottom face of the refrigerator rises, heat can be released to the outside, and therefore the top face of the refrigerator can absorb heat generated when charged equipment is charged through the top cover, the temperature of the charged equipment is reduced, and the bottom face of the refrigerator can dissipate the absorbed heat into the environment through the bottom cover.

Description

Technical Field

[0001] The present application relates to the technical field of electronic equipment, and in particular to a wireless charging device. Background Art

[0002] Wireless charging technology enables the design of terminal devices without holes. For wearable devices like watches and bracelets, which are frequently exposed to various liquids, wireless charging technology can effectively prevent charging problems caused by water ingress and corrosion of exposed contacts. In practice, due to the complex distribution of metal within wearable devices, the wireless charging magnetic field can easily couple to the metal, causing eddy current heating. Furthermore, the compact design makes heat dissipation difficult.

[0003] As wearable devices become more intelligent, their power consumption is also increasing, leading to frequent charging needs. Existing wireless charging bases typically absorb heat from the wearable device and dissipate it naturally. This natural heat dissipation method is significantly affected by ambient temperature and operating time. The heat dissipation capacity of wireless charging bases has limits, making it difficult to further reduce the charging temperature of wearable devices. Summary of the Invention

[0004] The present application provides a wireless charging device to improve the heat dissipation capability of the wireless charging device, thereby reducing the charging temperature of the charged device and increasing the charging speed of the charged device.

[0005] The present application provides a wireless charging device, which may include a shell and a refrigerator arranged in the shell; the shell may include a top cover and a bottom cover, the top cover is used to place the charged device; the refrigerator has a first surface in contact with the top cover and a second surface in contact with the bottom cover, and a side surface connecting the first surface and the second surface, and a wireless charging coil is wound around the side surface of the refrigerator.

[0006] In the technical solution provided by the present application, a charging device that supports wireless charging is provided with a power receiving coil connected to a battery. When the charged device needs to be charged, the charged device can be placed on the top cover. When the wireless charging coil is connected to the power supply, a magnetic field is generated. Based on the electromagnetic induction effect, the power receiving coil in the charged device generates current to charge the battery in the charged device, thereby charging the charged device. When the charged device is charged, the refrigerator is also connected to the power supply, the temperature of the top surface of the refrigerator is reduced, and heat can be absorbed from the outside. The temperature of the bottom surface of the refrigerator is increased, and heat can be released to the outside. Therefore, the top surface of the refrigerator can absorb the heat generated by the charged device during charging through the top cover, thereby reducing the temperature of the charged device. The bottom surface of the refrigerator can dissipate the absorbed heat to the environment through the bottom cover. Therefore, the wireless charging device has a strong heat dissipation capacity, can reduce the charging temperature of the charged device, and the charged device is not easy to overheat during charging, which can speed up the charging speed of the charged device and shorten the charging time of the charged device. In addition, the cooler and the wireless charging coil are stacked in a surrounding manner, which can effectively utilize the space between the top cover and the bottom cover. The spatial layout is relatively compact, which can increase the contact area between the cooler and the top cover within a limited space and improve the heat dissipation efficiency of the cooler.

[0007] In one specific embodiment, the cooler can be a semiconductor cooler; the cooler can be a cylindrical structure, with the top and bottom surfaces of the cylindrical structure being the first and second surfaces of the cooler, respectively, and the side surfaces of the cylindrical structure being the side surfaces of the cooler. The semiconductor cooler has high heat dissipation efficiency and can effectively absorb heat generated by the charged device during charging and dissipate it to the environment, thereby reducing the charging temperature of the charged device. This allows the wireless charging device to charge the charged device at a higher charging power, thereby improving the charging rate of the charged device.

[0008] In one specific embodiment, the cooler may have a through hole extending from the first surface to the second surface, and a magnetic attraction portion may be disposed within the through hole. The magnetic attraction portion may cooperate with a magnet within the charged device to secure the charged device to the top cover of the wireless charging device, thereby improving the positional stability of the charged device during charging.

[0009] In one specific embodiment, the housing further includes sidewalls connected to the top cover and the bottom cover. The top cover, the sidewalls, and the bottom cover together form a sealed accommodation space, and the refrigerator and the wireless charging coil are disposed within the accommodation space. The refrigerator and the wireless charging coil are housed within the sealed accommodation space and are protected.

[0010] In one specific embodiment, the sidewalls are made of a thermally insulating material; the projection of the sidewalls onto the bottom cover can be in the form of a circular ring. The sidewalls, top cover, and bottom cover together form a hollow cylindrical structure that aligns with the shape of the wireless charging coil, resulting in a compact and simple structure. Furthermore, the use of thermally insulating sidewalls prevents heat exchange between the top and bottom covers, thus maintaining the cooling performance of the refrigerator.

[0011] In a specific embodiment, the wireless charging device may further include a charging interface, the charging interface being located outside or on the housing, and the charging interface being electrically connected to the wireless charging coil and the refrigerator via cables, respectively, and the charging interface providing power and control to the wireless charging coil and the refrigerator via the cables. The charging interface may include a connecting terminal and a circuit board, the connecting terminal being fixedly connected to the circuit board, the connecting terminal being electrically connected to the cable via the circuit board, and the circuit board being further electrically connected to the wireless charging coil and the refrigerator via the cables, thereby providing power and control functions.

[0012] In a specific possible implementation, the bottom cover can be connected to a support structure; the support structure can include a support base and a support arm. The support base can be located on the side of the bottom cover facing away from the top cover. One end of the support arm can be connected to the bottom cover, and the other end of the support arm can be connected to the support base. The heat of the bottom cover can be transferred to the support arm and the support base. In this way, the support structure can assist the bottom cover in dissipating heat, and the support structure can assist the heat dissipation of the hot end of the refrigerator. As a result, the wireless charging device can use a refrigerator with higher power consumption, and the temperature of the cold end of the refrigerator is lower. The charging power of the wireless charging device can be higher and the charging speed can be faster. The support arm and the support base are arranged at an angle, and the structural stability of the support structure is relatively high, and the support for the charging disc is relatively stable.

[0013] In one specific embodiment, the projections of the bottom cover and the support base in a first direction at least partially overlap, with the first direction being perpendicular to the extension direction of the support base. This ensures that the center of gravity of the charging disk falls on the support base in a direction perpendicular to the support base, thereby providing a more stable support structure for the charging disk.

[0014] In a specific embodiment, the bottom cover and the support base can be arranged in parallel. After the charged device is placed on the top cover, the charged device can be parallel to the support base, so that the position of the charged device is relatively stable and the charged device is not likely to fall off the wireless charging device.

[0015] In one embodiment, the bottom cover and the support base may be arranged at an angle. After the device being charged is placed on the top cover, the device being charged may be at an angle to the support base, making it easier to view or operate the device while it is charging.

[0016] In a specific embodiment, the support base can be provided with a charging interface, which can be electrically connected to the wireless charging coil and the cooler via cables. The charging interface can include connecting terminals and a circuit board, which can be disposed within the support base, and the connecting terminals can be fixedly connected to the circuit board. The cable can be disposed within the support base and the support arm, and the connecting terminals can be electrically connected to the cable via the circuit board. The charging interface can be electrically connected to the charging head via a data cable with a connector.

[0017] In a specific embodiment, a terminal block is provided in the housing, and the terminal block is located between the top cover and the bottom cover. The wireless charging coil and the refrigerator can be electrically connected to the cable through the terminal block. The wireless charging coil and the refrigerator are electrically connected to the terminal block, and the terminal block is electrically connected to the cable, so that the wireless charging coil and the refrigerator are electrically connected to the cable through the terminal block, which facilitates the electrical connection of the cable to the wireless charging coil and the refrigerator, and further realizes the electrical connection of the wireless charging coil and the refrigerator to the charging port. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the structure of the wireless charging device provided in this application;

[0019] Figure 2 A schematic diagram of the three-dimensional structure of the wireless charging device provided in this application;

[0020] Figure 3 A schematic diagram of the top view of the wireless charging device provided in this application;

[0021] Figure 4 A side structural diagram of the wireless charging device provided in this application;

[0022] Figure 5 A schematic diagram of the exploded structure of the wireless charging device provided in this application;

[0023] Figure 6 A schematic diagram of the three-dimensional structure of another embodiment of the wireless charging device provided in this application;

[0024] Figure 7 A side structural schematic diagram of another embodiment of the wireless charging device provided in this application;

[0025] Figure 8 A schematic top view of another embodiment of the wireless charging device provided in this application;

[0026] Figure 9 This is a schematic diagram of the exploded structure of another embodiment of the wireless charging device provided in this application.

[0027] Reference numerals:

[0028] 10-Charging disc; 100-Top cover; 200-Bottom cover; 300-Refrigerator;

[0029] 400-wireless charging coil; 500-magnetic portion; 600-side wall; 700-charging port;

[0030] 800-cable; 900-bracket structure; 110-connection board; 301-through hole;

[0031] 701-connection terminal; 702-circuit board; 901-support base; 902-support arm;

[0032] 9011-Gap. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solutions and advantages of the present application clearer, the embodiments of the present application will be further described in detail with reference to the accompanying drawings. However, the example embodiments can be implemented in various forms and should not be construed as being limited to the embodiments set forth herein. The same reference numerals in the figures represent the same or similar structures, and thus their repeated description will be omitted. The words expressing position and direction described in the embodiments of the present application are all explained with reference to the accompanying drawings as examples, but changes may be made as needed, and the changes made are all included in the scope of protection of the present application. The drawings in the embodiments of the present application are only used to illustrate the relative position relationship and do not represent the true proportion.

[0034] The following description sets forth specific details to facilitate understanding of the present application. However, the embodiments of the present application can be implemented in a variety of other ways than those described herein, and those skilled in the art can make similar generalizations without violating the connotations of the embodiments of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0035] For ease of understanding, the application scenarios of the wireless charging device involved in this application are first described. The wireless charging device provided in the embodiments of this application can be applied to wireless charging scenarios of portable and wearable electronic products, such as watches, bracelets, headphones, mobile phones, tablets, and other devices.

[0036] In related technologies, wireless charging devices are typically embodied in the form of wireless charging bases. When charging a device, they absorb heat from the device and dissipate it naturally. However, this natural heat dissipation method is significantly affected by ambient temperature and operating time. The heat dissipation capacity of wireless charging devices is limited, making it difficult to significantly reduce the charging temperature of the device. The device will continue to heat up during charging, and the charging speed will be slow. Based on this, the embodiments of the present application provide a wireless charging device to improve the heat dissipation capacity of the wireless charging device, thereby reducing the charging temperature of the device and speeding up the charging speed of the device.

[0037] First refer to Figure 1 , Figure 1 The figure shows the structure of the wireless charging device provided by this application. Figure 1 As shown, the wireless charging device provided in the embodiment of the present application may include a shell and a refrigerator 300 arranged in the shell. The shell may include a top cover 100 and a bottom cover 200. The top cover 100 and the bottom cover 200 may be arranged at intervals. Specifically, the top cover 100 and the bottom cover 200 may be arranged in parallel. The refrigerator 300 has a first surface and a second surface opposite to each other. The first surface and the second surface of the refrigerator 300 can be understood as the top surface and the bottom surface of the refrigerator 300, respectively. The first surface of the refrigerator 300 can be in contact with the top cover 100, and the second surface of the refrigerator 300 can be in contact with the bottom cover 200. The refrigerator 300 also has a side surface, which connects the first surface and the second surface. A wireless charging coil 400 is wound around the side surface of the refrigerator 300. The wireless charging coil 400 can be annular and can also be called a power transmission coil.

[0038] In actual applications, a charging device that supports wireless charging is provided with a receiving coil. The receiving coil can be ring-shaped and electrically connected to the battery of the charged device. When the charged device needs to be charged, the charged device can be placed on the top cover 100, and the wireless charging coil 400 (transmitting coil) is connected to a power source. The wireless charging coil 400 generates a magnetic field. Based on the electromagnetic induction effect, the receiving coil in the charged device generates current, charging the battery in the charged device, thereby charging the charged device. When charging the charged device, the refrigerator 300 is also connected to the power supply, the temperature of the top surface of the refrigerator 300 decreases, and it can absorb heat from the outside world. The temperature of the bottom surface of the refrigerator 300 increases, and it can release heat to the outside world. Therefore, the top surface of the refrigerator 300 can absorb the heat generated by the charged device during charging through the top cover 100, thereby reducing the temperature of the charged device. The bottom surface of the refrigerator 300 can dissipate the absorbed heat to the environment through the bottom cover 200. Therefore, the wireless charging device has a strong heat dissipation capability, can reduce the charging temperature of the charged device, and the charged device is not easy to overheat during charging, which can speed up the charging speed of the charged device and shorten the charging time of the charged device.

[0039] In addition, the refrigerator 300 and the wireless charging coil 400 are stacked in a surrounding manner, or in a nested manner, which can effectively utilize the space between the top cover 100 and the bottom cover 200, or effectively utilize the internal space of the shell, thereby increasing the contact area between the refrigerator 300 and the top cover 100 and the bottom cover 200 within a limited space, thereby improving the heat dissipation efficiency of the refrigerator 300, and the spatial layout is compact, the size of the wireless charging device can be smaller, and the wireless charging device is easy to carry.

[0040] In a specific implementation, the top cover 100 can be made of a non-metallic material with good thermal conductivity. When the charged device is placed on the top cover 100, the top cover 100 contacts the charged device, transferring heat from the charged device to the top surface (cooling surface) of the cooler 300, thereby cooling the charged device. The surface of the top cover 100 facing away from the bottom cover 200 can have a groove structure. The projection of the groove structure on the top cover 100 can be circular, oval, square, or rectangular. When charging, the groove structure provides a secure slot for the main body of the watch or bracelet, ensuring a more stable position on the top cover 100 and a more reliable charging process. Furthermore, the groove structure increases the heat transfer area of ​​the top cover 100. A thermally conductive material, such as a thermal interface material (TIM), can be disposed within the groove structure to improve heat transfer efficiency. The thermally conductive material can be relatively soft, ensuring soft contact between the top cover 100 and the charged device, preventing damage to the charged device from bumping during charging. The bottom cover 200 can be made of a material with good thermal conductivity. It contacts the bottom surface (heat dissipation surface) of the cooler 300, transferring heat to the outside environment. In practical applications, the bottom cover 200 can contact a support such as a desktop or stand to assist in heat dissipation, further enhancing the heat dissipation capability of the wireless charging device.

[0041] As a possible implementation, the cooler 300 may utilize a thermal electronic cooler (TEC). A TEC is based on the thermoelectric effect of semiconductors. When powered on, electron-hole pairs are generated near one end, reducing internal energy and lowering temperature, absorbing heat from the outside world. This end can be referred to as the cold end. The other end, due to recombination of electron-hole pairs, increases internal energy and raises temperature, releasing heat to the environment. This end can be referred to as the hot end. In other words, the end surface of the cold end of the TEC can be the first surface, and the end surface of the hot end of the TEC can be the second surface. In a specific implementation, the TEC 300 can be, but is not limited to, a cylindrical structure. The top and bottom surfaces of the cylindrical structure can be the first and second surfaces of the TEC 300, respectively, and the side surfaces of the cylindrical structure can be the side surfaces of the TEC 300.

[0042] In actual application, the semiconductor cooler has a high heat dissipation efficiency and can effectively absorb the heat generated by the charged device during charging and dissipate it to the environment, thereby reducing the charging temperature of the charged device. This allows the wireless charging device to charge the charged device at a higher charging power, thereby increasing the charging rate of the charged device. In specific implementation, due to the high heat dissipation efficiency of the semiconductor cooler, a semiconductor cooler with lower power consumption can be selected, especially for charging scenarios with lower-power charged devices. In this way, the heat generated by the semiconductor cooler during operation is lower, and the bottom cover 200 can be used alone as a heat sink to dissipate heat for the hot end of the semiconductor cooler, or other heat sinks can be provided to assist in heat dissipation. There is no need to use a fan or the like for heat dissipation, thus avoiding the problem of charging noise.

[0043] As a possible embodiment, the housing may further include a side wall 600, through which the top cover 100 is connected to the bottom cover 200. The top cover 100, the side wall 600, and the bottom cover 200 enclose a sealed accommodation space, and the refrigerator 300 and the wireless charging coil 400 are arranged in the accommodation space. The side wall 600 can be made of an insulating material, that is, a material that can block heat flow transfer to avoid heat exchange between the top cover 100 and the bottom cover 200, thereby not affecting the cooling performance of the refrigerator 300. Specifically, the material of the side wall 600 can be an insulating material such as plastic, glass fiber, asbestos, rock wool, silicate, etc.

[0044] During specific implementation, the projection shape of the side wall 600 on the bottom cover 200 can be a circular ring. Specifically, the side wall 600 can be a hollow cylindrical structure. The top cover 100 and the bottom cover 200 can both be circular sheet structures. The top cover 100, the side wall 600 and the bottom cover 200 can be enclosed to form a hollow cylindrical structure, or enclosed to form a hollow disc-shaped structure, that is, the shell can be embodied as a hollow disc-shaped structure. The hollow disc-shaped structure matches the shape of the wireless charging coil 400, and has a small volume and a relatively simple structure. The hollow area of ​​the hollow disc-shaped structure is the accommodation space. The refrigerator 300 and the wireless charging coil 400 are accommodated in the enclosed accommodation space and can be protected. The hollow disc-shaped structure and the refrigerator 300 and the wireless charging coil 400 inside it form a charging disc, or the charging side.

[0045] Taking the charging disc given above as an example, Figure 2 shows a schematic diagram of the three-dimensional structure of the wireless charging device provided by this application, Figure 3 shows a schematic diagram of the top view of the wireless charging device provided in this application, Figure 4 FIG. 1 shows a side view of the wireless charging device provided by the present application. Figure 2 、 Figure 3 and Figure 4As shown, the wireless charging device may further include a charging interface 700 , which is located outside or on the housing. Figure 2 、 Figure 3 and Figure 4 The embodiment in which the charging interface 700 is located outside the housing is illustrated. In this case, the charging interface 700 can be connected to the charging disc 10 via a cable 800, and the charging interface 700 can power and control the charging disc 10 via the cable 800. In actual application, the charging interface 700 can be connected to a charging head to achieve connection with a power source such as a home grid. Figure 1 As shown, the cable 800 can extend from the side wall 600 into the charging disc 10 and then be electrically connected to the wireless charging coil 400 and the refrigerator 300 respectively.

[0046] Figure 5 The exploded structure diagram of the wireless charging device provided by this application is shown. Figure 5 As shown, the charging interface 700 may include a connection terminal 701 and a circuit board 702. The connection terminal 701 is fixedly connected to the circuit board 702. The connection terminal 701 is electrically connected to the cable 800 through the circuit board 702, and is further electrically connected to the wireless charging coil 400 and the refrigerator 300 through the cable 800 to realize power supply and control functions. For example, the connection terminal 701 can use a USB-Type C or USB-Type A terminal, and the connection terminal 701 is used to connect the charging interface 700 to the power supply side, that is, to connect the wireless charging device to the power supply side.

[0047] In a specific implementation, a wiring board 110 may be provided in the housing, and the wiring board 110 is located between the top cover 100 and the bottom cover 200. The wireless charging coil 400 and the refrigerator 300 are respectively electrically connected to the wiring board 110, and the wiring board 110 is electrically connected to the cable 800, thereby achieving electrical connection between the wireless charging coil 400 and the refrigerator 300 and the cable 800 respectively through the wiring board 110, and further achieving electrical connection between the wireless charging coil 400 and the refrigerator 300 and the charging port 700 respectively. The cable 800 is connected to the wiring board 110, and then transferred from the wiring board 110 to the wireless charging coil 400 and the refrigerator 300, facilitating the electrical connection between the cable 800 and the wireless charging coil 400 and the refrigerator 300.

[0048] In a possible specific implementation, the refrigerator 300 has a through hole 301 extending from the first surface to the second surface, and a magnetic attraction portion 500 is provided in the through hole 301. Specifically, the magnetic attraction portion 500 can be a magnet. In actual application, a magnet can also be provided in the charged device. The magnet in the charged device cooperates with the magnetic attraction portion 500 to achieve adsorption and fixation of the charged device on the top cover 100 of the wireless charging device, which can improve the position stability of the charged device during charging. In addition, the magnet in the charged device can be provided within the annular range of the receiving coil, so that the receiving coil in the charged device can be aligned with the wireless charging coil 400 (transmitting coil) of the wireless charging device, thereby enhancing the effect of electromagnetic induction between the receiving coil and the wireless charging coil 400, and improving the charging efficiency of the wireless charging of the charged device.

[0049] Figure 6 FIG2 shows a schematic diagram of the three-dimensional structure of another embodiment of the wireless charging device provided by the present application. Figure 7 FIG2 shows a side structural diagram of another embodiment of the wireless charging device provided by the present application. Figure 8 FIG. 1 shows a schematic diagram of a top view of another embodiment of the wireless charging device provided by the present application. Figure 6 、 Figure 7 and Figure 8 As shown in the figure, as a possible embodiment, the charging disc 10 can be connected to a support structure 900. Specifically, the bottom cover 200 can be connected to the support structure 900. In a specific implementation, the support structure 900 can include a support base 901 and a support arm 902. The support base 901 is located on the side of the bottom cover 200 facing away from the top cover 100. One end of the support arm 902 is connected to the bottom cover 200, and the other end of the support arm 902 is connected to the support base 901, thereby connecting the support structure 900 to the bottom cover 200 and thus connecting the support structure 900 to the charging disc 10.

[0050] In actual use, the support structure 900 can be placed on a table or the ground, and the support base 901 can be in contact with the table or the ground. The heat of the bottom cover 200 can be transferred to the support arm 902 and the support base 901. In this way, the support structure 900 can assist the bottom cover 200 in dissipating heat, and the support structure 900 can also assist the heat dissipation of the hot end of the cooler 300. As a result, the wireless charging device can use a cooler 300 with higher power consumption, and the temperature of the cold end of the cooler 300 is lower, which can increase the charging power of the wireless charging device and speed up the charging process.

[0051] In a specific implementation, the support arm 902 can be arranged at an angle to the support base 901. The structural stability of the bracket structure 900 is relatively high, and the support for the charging disk 10 is relatively stable. The projections of the bottom cover 200 and the support base 901 in the first direction at least partially overlap, and the first direction is perpendicular to the extension direction of the support base 901. Figure 6 The x-direction in the figure represents a first direction; in other words, the projection of at least a portion of the bottom cover 200 in a direction perpendicular to the support base 901 overlaps with the support base 901. This ensures that the center of gravity of the charging disk 10 falls on the support base 901 in a direction perpendicular to the support base 901, so that the support structure 900 can more stably support the charging disk 10.

[0052] In a specific implementation, the bottom cover 200 and the support base 901 can be arranged in parallel. Since the top cover 100 and the bottom cover 200 can be arranged in parallel, after the charged device is placed on the top cover 100, the charged device can be parallel to the support base 901. In this way, the position of the charged device is relatively stable and the charged device is not easy to fall from the wireless charging device. Alternatively, the plane where the bottom cover 200 is located and the plane where the support base 901 is located can be arranged at an angle. After the charged device is placed on the top cover 100, the charged device can be at an angle to the support base 901, which is convenient for viewing or operating the charged device when the charged device is charging. Specifically, the bottom cover 200 and the support arm 902 can be movably connected by means of a hinge or the like. In this way, the angle between the bottom cover 200 and the support arm 902 is adjustable, and thus the angle between the bottom cover 200 and the support base 901 is adjustable, so that the bottom cover 200 and the support base 901 can be parallel or at an angle, which can improve the flexibility of the wireless charging device when in use and can adapt to a variety of usage scenarios. The support arm 902 and the support base 901 can be integrally formed; alternatively, the support arm 902 and the support base 901 can be movably connected by means of a hinge or the like, and the angle between the support arm 902 and the support base 901 is adjustable, which can further improve the flexibility of the wireless charging device when in use.

[0053] Figure 9 FIG1 shows an exploded structural diagram of another embodiment of the wireless charging device provided by the present application. Figure 9 As shown, in a possible specific implementation, the cable 800 can be set in the support base 901 and the support arm 902, the support base 901 can be provided with a notch 9011, the shape of the notch 9011 matches the shape of the connection terminal 701, the connection terminal 701 is accommodated in the notch 9011, and the circuit board 702 can be accommodated in the support base 901. When in use, the connection terminal 701 can be electrically connected to the charging head through a data cable with a connector. Alternatively, the cable 800 can be set in the support arm 902, the support arm 902 can be provided with a notch 9011, the connection terminal 701 is accommodated in the notch 9011, and the circuit board 702 can be accommodated in the support arm 902.

[0054] In another possible implementation, a portion of the cable 800 can be disposed within the support base 901 and the support arm 902, while another portion of the cable 800 can extend from the support base 901, that is, another portion of the cable 800 can be exposed from the support structure 900, and the charging interface 700 is connected to the end of the cable 800 exposed from the support structure 900. During use, the charging interface 700 can be directly electrically connected to the charging head. Alternatively, a portion of the cable 800 can be disposed within the support arm 902, while another portion of the cable 800 can extend from the support arm 902, that is, another portion of the cable 800 can be exposed from the support structure 900, and the charging interface 700 is connected to the end of the cable 800 exposed from the support structure 900.

[0055] In this application, "at least one" means one or more, and "more" means two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone, where A and B can be singular or plural. In the text description of this application, the character " / " generally indicates that the previous and next associated objects are in an "or" relationship; in the formula of this application, the character " / " indicates that the previous and next associated objects are in a "division" relationship. "Including at least one of A, B and C" can mean: including A; including B; including C; including A and B; including A and C; including B and C; including A, B and C.

[0056] It is understood that the various numbers used in the embodiments of this application are merely for ease of description and are not intended to limit the scope of the embodiments of this application. The order of the sequence numbers of the above-mentioned processes does not necessarily imply a specific order of execution; the order of execution of the processes should be determined by their functions and inherent logic.

[0057] The above is only a specific implementation method of the present application, but the protection scope of the present application is not limited thereto. Any changes or replacements that can be easily thought of by any technician familiar with this technical field within the technical scope disclosed in this application should be covered by the protection scope of the present application.

Claims

1. A wireless charging device, characterized in that: comprising a housing and a refrigerator disposed in the housing; The housing includes a top cover and a bottom cover, wherein the top cover is used to place the charged device; The refrigerator comprises a first surface in contact with the top cover, a second surface in contact with the bottom cover, and a side surface connecting the first surface and the second surface, wherein a wireless charging coil is wound around the side surface.

2. The wireless charging device according to claim 1, wherein: The refrigerator is a semiconductor refrigerator; The refrigerator is a cylindrical structure, the top surface and the bottom surface of the cylindrical structure are the first surface and the second surface respectively, and the side surface of the cylindrical structure is the side surface.

3. The wireless charging device according to claim 1 or 2, wherein: The refrigerator has a through hole extending from the first surface to the second surface, and a magnetic attraction portion is provided in the through hole.

4. The wireless charging device according to any one of claims 1 to 3, wherein: The shell further includes a side wall, which connects the top cover and the bottom cover. The side wall is made of a heat-insulating material, and the projection of the side wall on the bottom cover is a circular ring.

5. The wireless charging device according to any one of claims 1 to 4, wherein: It also includes a charging interface, wherein the charging interface is electrically connected to the wireless charging coil and the refrigerator through cables; The charging interface includes a connecting terminal and a circuit board, the connecting terminal is fixedly connected to the circuit board, and the connecting terminal is electrically connected to the cable through the circuit board.

6. The wireless charging device according to any one of claims 1 to 4, wherein: The bottom cover is connected to a bracket structure; The support structure includes a support base and a support arm. The support base is located on the side of the bottom cover away from the top cover. One end of the support arm is connected to the bottom cover, and the other end of the support arm is connected to the support base. The support arm and the support base are arranged at an angle.

7. The wireless charging device according to claim 6, wherein: Projections of the bottom cover and the support base in a first direction at least partially overlap, and the first direction is perpendicular to an extension direction of the support base.

8. The wireless charging device according to claim 6 or 7, wherein: The bottom cover is arranged parallel to the support base.

9. The wireless charging device according to claim 6 or 7, wherein: The plane where the bottom cover is located and the plane where the support base is located are arranged at an angle.

10. The wireless charging device according to any one of claims 6 to 9, wherein: The support base is provided with a charging interface, and the charging interface is electrically connected to the wireless charging coil and the refrigerator through cables respectively; The charging interface includes a connecting terminal and a circuit board, the circuit board is arranged in the support base, and the connecting terminal is fixedly connected to the circuit board; the cable is arranged in the support base and the support arm, and the connecting terminal is electrically connected to the cable through the circuit board.

11. The wireless charging device according to claim 5 or 10, wherein: A wiring board is provided in the shell, and the wiring board is located between the top cover and the bottom cover. The wireless charging coil and the refrigerator are electrically connected to the cable through the wiring board respectively.

Images