Wireless charging device

Abstract

The utility model relates to the technical field of electronic equipment, in particular to a wireless charging device. A wireless charging device comprises a base and a first wireless charging module, the first wireless charging module is configured to charge a first terminal device, the first wireless charging module comprises a support, a shell and a coil assembly, the support is arranged on the base, the coil assembly is connected to the support and located in the shell, the shell is movably connected to the support, and the coil assembly is located in the shell. The shell can move relative to the coil assembly, and when the first terminal equipment needing to be charged is placed in the shell, the relative position of the built-in coil of the first terminal equipment and the coil assembly is adjusted by adjusting the position of the shell, so that the built-in coil of the first terminal equipment is aligned with the coil assembly, and the wireless charging efficiency is effectively improved; energy waste is reduced, and more convenient and efficient wireless charging experience is provided for users.

Description

Technical Field

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

[0002] Wireless charging is a technology that operates on a principle similar to a transformer. Each end has a coil, with the transmitting and receiving ends having coils. The transmitting coil is connected to a wired power source, generating alternating current. This alternating current is then induced in the receiving coil via electromagnetic induction, transferring energy from the transmitting to the receiving end and thus charging the battery. This field encompasses the charging needs of everything from consumer electronics such as mobile phones, watches, and headphones to higher-powered devices like electric vehicles. In the consumer electronics market, many devices are beginning to incorporate wireless charging capabilities, which has spurred the rapid development of the wireless charging device market. Existing three-in-one wireless chargers have emerged to meet the charging needs of three types of communication devices: mobile phones, watches, and Bluetooth headsets. They integrate multiple charging functions, allowing users to conveniently charge multiple devices simultaneously.

[0003] However, the coils of wireless chargers in related technologies are fixed. During the charging process, the charging efficiency is low and some energy is wasted because the coils of the wireless charging device and the communication device are not aligned. Utility Model Content

[0004] This application discloses a wireless charging device that can adjust the relative position of the housing and the coil assembly to align the coil assembly of the charging device with the coil assembly of the communication device, thereby improving charging efficiency.

[0005] To achieve the above objectives, this application discloses a wireless device, the wireless charging device comprising:

[0006] Base;

[0007] A first wireless charging module is configured to charge a first terminal device. The first wireless charging module includes a bracket, a housing, and a coil assembly. The bracket is disposed on the base, and the coil assembly is connected to the bracket. The coil assembly is located inside the housing, and the housing is movably connected to the bracket so that the relative position of the housing and the coil assembly is adjustable.

[0008] As an optional implementation, the housing is movably connected to the coil assembly along a first direction, the first direction being the direction in which the housing approaches or moves away from the base.

[0009] As an optional implementation, the support includes a connecting portion and a bearing portion, the bearing portion is located in the shell, the coil assembly is arranged on the bearing portion, a first end of the connecting portion is connected to the base, and a second end of the connecting portion extends into the shell and is connected to the bearing portion.

[0010] As an optional implementation, the shell is provided with a relief groove, the second end of the connecting portion is arranged in the relief groove, and in the first direction, the size of the relief groove is greater than the size of the second end of the connecting portion.

[0011] As an optional implementation, a positioning assembly is arranged between the shell and the coil assembly, and the positioning assembly is configured to adjust the relative position of the shell and the coil assembly and then position the shell.

[0012] As an optional implementation, the positioning assembly includes a positioning member and a clamping member, the positioning member is arranged in the shell, the clamping member is arranged on the bearing portion, a plurality of clamping positions are arranged on the positioning member in the first direction, and the clamping member can be clamped in any clamping position.

[0013] As an optional implementation, the plurality of clamping positions include a plurality of clamping grooves, and the clamping member includes a protruding tooth portion, which can be clamped in any clamping groove.

[0014] As an optional implementation, the bearing portion includes a bottom plate and a plurality of side walls arranged around the bottom plate, the plurality of side walls include a first side wall and a second side wall arranged in the second direction, the outer surface of the first side wall and the outer surface of the second side wall are provided with the protruding tooth portion, two protruding tooth portions are arranged on two opposite side walls of the bearing portion arranged in the second direction, the second direction is perpendicular to the first direction, the positioning member is two, and the bearing portion is located between the two positioning members.

[0015] The bottom plate is provided with a first groove structure and a second groove structure, the first groove structure is arranged close to the first side wall to provide deformation space for the first side wall in the second direction, and the second groove structure is arranged close to the second side wall to provide deformation space for the second side wall in the second direction.

[0016] As an optional implementation, a first elastic member is arranged between the bottom plate and the first side wall, the first elastic member can provide a restoring force for the first side wall in the direction away from the bottom plate in the second direction, and a second elastic member is arranged between the bottom plate and the second side wall, the second elastic member can provide a restoring force for the second side wall in the direction away from the bottom plate in the second direction.

[0017] As an optional implementation, the base has an upper surface, the upper surface is provided with a first mounting hole, the first wireless charging module is arranged in the first mounting hole, one end of the first wireless charging module is located in the base and connected with the upper surface of the base, and the base is provided with a mainboard, and the first wireless charging module is electrically connected with the mainboard;

[0018] The wireless charging device further comprises a second wireless charging module connected with the base and electrically connected with the mainboard, and the second wireless charging module is configured to charge a second terminal device;

[0019] The wireless charging device further comprises a third wireless charging module arranged on the mainboard in the base, the third wireless charging module is electrically connected with the mainboard, the third wireless charging module is configured to charge a third terminal device, and the upper surface of the base has a charging area configured to place the third terminal device;

[0020] At least two of the first terminal device, the second terminal device and the third terminal device are different terminal devices, and the first terminal device, the second terminal device and the third terminal device respectively include a watch, a mobile phone and a headset.

[0021] Compared with the prior art, the application has at least the following beneficial effects:

[0022] The wireless charging device provided by the embodiment of the application comprises a base and a first wireless charging module, the first wireless charging module is configured to charge a first terminal device, the first wireless charging module comprises a support, a shell and a coil assembly, the support is arranged on the base, the coil assembly is connected to the support, the coil assembly is located in the shell, the shell is movably connected to the support, and the shell can move relative to the coil assembly; when the first terminal device to be charged is placed in the shell, the relative position of the built-in coil of the first terminal device and the coil assembly is adjusted by adjusting the position of the shell, so that the built-in coil of the first terminal device is aligned with the coil assembly, thereby effectively improving the wireless charging efficiency and reducing energy waste, and a more convenient and efficient wireless charging experience is provided for the user. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the application, the drawings needed in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative labor.

[0024] Figure 1Structure schematic diagram of a wireless charging device disclosed by an embodiment of the present application;

[0025] Figure 2 Structure explosion schematic diagram of a wireless charging device disclosed by an embodiment of the present application;

[0026] Figure 3 Structure schematic diagram of a first wireless charging module disclosed by an embodiment of the present application in a first perspective view;

[0027] Figure 4 Structure explosion schematic diagram of a first wireless charging module disclosed by an embodiment of the present application;

[0028] Figure 5 Structure schematic diagram of a first wireless charging module disclosed by an embodiment of the present application in a second perspective view;

[0029] Figure 6 Structure schematic diagram of a first wireless charging module disclosed by an embodiment of the present application in a third perspective view;

[0030] Figure 7 Structure schematic diagram of a first wireless charging module disclosed by an embodiment of the present application in a third perspective view; Figure 5 Cross-sectional view of A-A in FIG. 1;

[0031] Figure 8 Cross-sectional view of B-B in FIG. 1; Figure 5 Cross-sectional view of B-B in FIG. 1;

[0032] Figure 9 Cross-sectional view of C-C in FIG. 1. Figure 6

[0033] Explanation of reference signs:

[0034] 100 - wireless charging device; 1 - first wireless charging module; 11 - support; 111 - connecting part; 112 - bearing part; 112a - positioning column; 1121 - bottom plate; 11211 - first groove structure; 11212 - second groove structure; 1122 - side wall; 11221 - first side wall; 11222 - second side wall; 12 - shell; 12a - avoiding groove; 121 - first shell; 122 - second shell; 13 - coil assembly; 13a - second mounting hole; 14 - positioning assembly; 141 - positioning piece; 1411 - clamping groove; 142 - clamping piece; 1421 - protruding tooth part; 15 - first elastic piece; 16 - second elastic piece; 2 - second wireless charging module; 3 - third wireless charging module; 31 - charging area; 4 - base; 41 - upper surface; 41a - first mounting hole; 42 - main plate; X - first direction; Y - second direction. DETAILED DESCRIPTION

[0035] ​With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments of the present application, all the other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of the present application.

[0036] In the present application, the orientation or positional relationship indicated by the terms "upper", "front", "rear", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings. These terms are mainly used for better describing the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0037] In addition, in addition to being used to indicate the orientation or positional relationship, the above-mentioned partial terms can also be used to indicate other meanings, for example, the term "upper" can also be used to indicate a certain dependent relationship or connection relationship in some cases. Those of ordinary skill in the art can understand the specific meaning of these terms in the present application according to the specific situation.

[0038] In addition, the terms "mount", "set", "provided with", "connected" should be understood broadly. For example, it can be fixed connection, detachable connection, or integral structure; it can be mechanical connection, or electrical connection; it can be direct connection, or indirect connection through intermediate medium, or internal communication between two devices, elements or components. Those of ordinary skill in the art can understand the specific meaning of the above-mentioned terms in the present application according to the specific situation.

[0039] In addition, the terms "first", "second" and the like are mainly used to distinguish different devices, elements or components (the specific types and structures can be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise specified, the meaning of "multiple" is two or more.

[0040] Wireless charging is a technology that is fundamentally similar to a transformer, with a coil in the sending end and a coil in the receiving end. The sending end coil is connected to a line power supply to generate an alternating current, which generates a certain current in the receiving end coil through electromagnetic induction, thereby transferring energy from the sending end to the receiving end, and then charging the battery. This field covers the charging needs of consumer electronics such as mobile phones, watches, earphones, and larger power equipment such as electric vehicles. In the consumer electronics market, a variety of devices have begun to be equipped with wireless charging functions, which has also contributed to the rapid development of the wireless charging device market. The existing three-in-one wireless charger is born to meet the charging needs of mobile phones, watches, and Bluetooth earphones. It integrates multiple charging functions and is convenient for users to charge multiple devices at the same time.

[0041] However, the coil of the wireless charger in the related art is fixed. During the charging process, the coil of the wireless charging device and the coil of the communication device are not aligned, according to the principle of electromagnetic induction, the magnetic field generated by the sending end cannot be effectively converted into electric energy at the receiving end, resulting in a decrease in the charging efficiency of the wireless charging coil. When the terminal device is placed away from the center of the coil of the charger, the induced electromotive force at the receiving end will decrease, and the charging current will also decrease, which not only prolongs the charging time, but also causes waste of part of the energy.

[0042] Based on this, the embodiment of the present application discloses a wireless charging device that can adjust the relative position of the shell and the coil assembly to align the coil assembly of the charging device with the coil assembly of the communication device, thereby improving the charging efficiency.

[0043] The technical solutions of the present application will be further described below in conjunction with the embodiments and the drawings.

[0044] Please refer to Figures 1 to 4 , Figure 1 The structure diagram of the wireless charging device 100 disclosed by the embodiment of the present application is shown in Figure 2 The structure explosion diagram of the wireless charging device 100 disclosed by the embodiment of the present application is shown in Figure 3 The structure diagram of the first wireless charging module 1 disclosed by the embodiment of the present application is shown in the first perspective view, Figure 4 The structure explosion diagram of the first wireless charging module 1 disclosed by the embodiment of the present application is shown in. The wireless charging device 100 disclosed by the embodiment of the present application comprises:

[0045] The base 4;

[0046] The first wireless charging module 1 is configured to charge the first terminal device, and comprises a support 11, a housing 12 and a coil assembly 13. The support 11 is arranged on the base 4, the coil assembly 13 is connected to the support 11, and the coil assembly 13 is located in the housing 12. The housing 12 is movably connected to the support 11, so that the relative position of the housing 12 and the coil assembly 13 can be adjusted.

[0047] Due to different first terminal devices, the positions of the built-in coils may be different. The charging coil position of the traditional wireless charging device 100 is relatively fixed. If the position of the built-in coil of the terminal device does not match the position of the coil of the charging device, the magnetic field coupling will not be complete. For example, part of the magnetic lines of force may not be able to effectively pass through the receiving coil, thereby causing energy loss during transmission and reducing charging efficiency. When the housing 12 of the wireless charging device 100 of the present application is movably connected to the support 11 and thus movable relative to the coil assembly 13, the user can adjust the position of the housing 12 according to the position of the built-in coil of the first terminal device, so that the built-in coil of the first terminal device can be aligned with the coil assembly 13 in the wireless charging device 100.

[0048] During wireless charging, the relative position between the coils has an important influence on charging efficiency. When the two coils are aligned, the coupling effect of the magnetic field is best. According to the principle of electromagnetic induction, in the best coupling state, the energy transmission loss is smallest, thereby improving the wireless charging efficiency. When the built-in coil of the first terminal device is aligned with the coil assembly 13, energy can be transmitted from the charging device to the terminal device with high efficiency. If the coils are not aligned, part of the energy will be dissipated in the surrounding environment in the form of heat energy, etc., without being effectively received by the terminal device. After the coils are aligned by adjusting the position of the housing 12, the energy loss caused by incomplete coupling is reduced, thereby reducing energy waste.

[0049] After the coils are aligned, the energy transmission during charging is more stable, and the charging interruption or charging speed fluctuation caused by the position offset of the coils will not occur. When using the wireless charging device 100, the user does not need to spend too much effort to find the best placement position of the terminal device and the first charging module. By simply adjusting the position of the housing 12, the user can ensure that the coils are aligned and achieve efficient charging.

[0050] As an optional implementation, in combination with Figures 1 to 3The housing 12 is movably connected to the coil assembly 13 in a first direction X, which is the direction in which the housing 12 is close to or away from the base 4. This specific direction of movability helps to more accurately adjust the relative position of the built-in coil of the first terminal device and the coil assembly 13. In an actual charging scenario, when the first terminal device is placed on the housing 12, there may be an optimal coil alignment position in the direction of close to or away from the base 4. By adjusting the housing 12 in this direction, the accuracy of magnetic field coupling can be improved, thereby improving the efficiency of wireless charging. This specific direction of adjustability enables the built-in coil of the first terminal device to be more accurately aligned with the coil assembly 13, reducing energy transmission loss due to positional deviation.

[0051] Specifically, when the housing 12 is moved in the first direction X to a suitable position so that the built-in coil of the first terminal device is accurately aligned with the coil assembly 13, energy transmission is more efficient, thereby reducing energy waste. Without this specific direction of adjustability, energy may not be effectively transmitted due to positional deviation in this direction, resulting in energy being wasted in the form of heat energy, etc. Moreover, the user does not need to blindly try to adjust in multiple directions, but only needs to focus on the direction in which the housing 12 is close to or away from the base 4. This makes the adjustment process simpler and faster, providing users with a more convenient wireless charging experience. At the same time, because the coils can be more accurately aligned to improve charging efficiency, users also experience more efficient and stable charging effects during charging, without worrying about charging interruptions or fluctuations in charging speed, etc.

[0052] Please refer to Figures 4 to 7 , Figure 5 A structure schematic diagram of the first wireless charging module 1 disclosed in the embodiments of the present application in a second perspective view, Figure 6 A structure schematic diagram of the first wireless charging module disclosed in the embodiments of the present application in a third perspective view, Figure 7 A structure schematic diagram of the first wireless charging module disclosed in the embodiments of the present application in a fourth perspective view, Figure 5 Optionally, the support 11 includes a connecting portion 111 and a bearing portion 112, the bearing portion 112 is located in the housing 12, the coil assembly 13 is arranged on the bearing portion 112, the first end of the connecting portion 111 is connected to the base 4, and the second end of the connecting portion 111 extends into the housing 12 and is connected to the bearing portion 112.

[0053] This structural design helps to better fix and support the coil assembly 13. The bearing part 112 provides a special placement platform for the coil assembly 13. This helps to protect the coil assembly 13 from external factors (such as collision with other components inside the shell 12, etc.). At the same time, reasonable design of the bearing part 112 can ensure the positional accuracy of the coil assembly 13 inside the shell 12, which is conducive to maintaining the stability of the coil assembly 13 when adjusting the relative position of the shell 12 and the coil assembly 13, thereby better realizing the alignment with the built-in coil of the first terminal device and improving the charging efficiency.

[0054] The first end of the connecting part 111 is connected to the base 4, and the second end extends into the shell 12 and is connected to the bearing part 112, which enables the coil assembly 13 to be stably positioned inside the shell 12. The design of the connecting part 111 enhances the structural integrity of the first wireless charging module 1. The connecting part 111 effectively connects the base 4, the support 11, and the shell 12 together, making the connection between the components more secure. This close connection relationship can reduce energy loss caused by loose or insecure connections. A stable structure is very important for wireless charging, because during the charging process, a stable coil position can ensure the stability of the magnetic field, thereby improving the efficiency of wireless charging.

[0055] It can be understood that the connecting part 111 can be connected to the bearing part 112 in any possible way, which is not limited in this embodiment.

[0056] In some optional embodiments, in combination with Figure 4 、 Figure 5 and Figure 7 , a relief groove 12a is formed on the shell 12, the second end of the connecting part 111 is arranged in the relief groove 12a, along the first direction X, the size of the relief groove 12a is greater than the size of the second end of the connecting part 111. Along the second direction Y, the size of the relief groove 12a matches or is slightly larger than the size of the second end of the connecting part 111.

[0057] This design provides a certain space for movement between the shell 12 and the connecting part 111, so that the shell 12 can move flexibly relative to the connecting part 111. When it is necessary to adjust the shell 12 according to the position of the built-in coil of the first terminal device, the movement of the shell 12 is guided and limited to a certain extent. The relief groove 12a provides a relief space for the movement of the shell 12 along the first direction X (the direction of approaching or moving away from the base 4), which helps to maintain the stability of the entire device structure while ensuring the flexible movement of the shell 12. The movement of the shell 12 is guided and limited to a certain extent. This helps to maintain the stability of the entire device structure while ensuring the flexible movement of the shell 12.

[0058] In addition, when the charging process may be subject to slight external interference (such as slight vibration or external force touch), the cooperation of the avoidance groove 12a and the connecting part 111 can prevent the shell 12 from excessive shaking or deviating from the correct moving direction, so as to ensure the stable relative position relationship between the coil assembly 13 and the built-in coil of the first terminal device, which is conducive to stable magnetic field coupling and improves the wireless charging efficiency.

[0059] In some embodiments, in combination with Figure 4 , the shell 12 and the coil assembly 13 are provided with a positioning assembly 14, which is configured to adjust the relative position of the shell 12 and the coil assembly 13 and then position the shell 12.

[0060] When the user adjusts the position of the shell 12 to align the built-in coil of the first terminal device with the coil assembly 13, the positioning assembly 14 can fix the position of the shell 12. In an actual charging scenario, for example, there may be slight vibration or external interference during the charging process. If there is no positioning assembly 14, the shell 12 may be displaced, causing the coil position that has been aligned to be misaligned again, thereby affecting the charging efficiency. The positioning assembly 14 can effectively avoid this situation and ensure that the built-in coil of the first terminal device and the coil assembly 13 always maintain the best relative position during the entire charging process, maintain stable magnetic field coupling, and thus ensure efficient wireless charging efficiency.

[0061] For the user, the positioning assembly 14 simplifies the operation process. The user only needs to adjust the shell 12 to the appropriate position (align the coils), and the positioning assembly 14 will automatically position the shell 12 at that position, without the user needing to continuously pay attention to or manually maintain the position of the shell 12 during the charging process.

[0062] As an optional implementation, in combination with Figure 4 , Figure 6 and Figure 9 , Figure 9 for Figure 6 , the cross-sectional view at C-C of FIG. 13, the positioning assembly 14 includes a positioning piece 141 and a clamping piece 142, the positioning piece 141 is arranged in the shell 12, and the clamping piece 142 is arranged on the bearing part 112. The positioning piece 141 is provided with a plurality of clamping positions along the first direction X, and the clamping piece 142 can be clamped in any clamping position.

[0063] In this way, accurate adjustment and positioning of the position of the shell 12 are achieved. Different first terminal devices may have slight differences in the positions of their built-in coils. By cooperation of the clamping piece 142 and different clamping positions, the user can adjust the shell 12 to the most suitable position according to the specific circumstances of the first terminal device, so that the built-in coil of the first terminal device and the coil assembly 13 are accurately aligned, thereby improving the wireless charging efficiency.

[0064] Due to the plurality of clamping positions on the positioning member 141, the first wireless charging module 1 also has strong adjustability and adaptability, which can adapt to the charging needs of different types and models of first terminal devices. As the first terminal devices on the market are constantly updated and replaced, the position of the built-in coil and the charging requirements may change. The positioning assembly 14 can easily cope with these changes by cooperating the clamping member 142 with different clamping positions, thereby improving the versatility of the first wireless charging module 1.

[0065] When the clamping member 142 is clamped on the clamping position of the positioning member 141, this clamping structure can effectively fix the position of the shell 12. During the charging process, whether it is subjected to slight vibration or other interference from the outside world, the clamping structure can maintain the stability of the shell 12. The stable position of the shell 12 helps to maintain the stability of the coil assembly 13, thereby ensuring the stable coupling of the magnetic field. Compared with charging devices without such precise clamping structure, this design can better prevent the reduction of charging efficiency caused by the shaking of the shell 12, thereby improving the stability of the entire first wireless charging module 1.

[0066] For users, the operation of such a positioning assembly 14 is relatively simple. The user only needs to clamp the clamping member 142 to the appropriate clamping position to complete the positioning of the shell 12. No complex adjustment or fixing device is required, and the operation is intuitive and convenient. In daily use, the user can quickly adjust the position of the shell 12, saving time and improving the user's experience.

[0067] In some possible implementations, in combination with Figure 4 , Figure 6 and Figure 9 , the plurality of clamping positions include a plurality of clamping slots 1411, and the clamping member 142 includes a protruding tooth portion 1421, which can be clamped in any clamping slot 1411.

[0068] When the first terminal device is placed on the shell 12, the protruding tooth portion 1421 of the clamping member 142 is clamped in the clamping slot 1411 of the positioning member 141, which can fix the shell 12 at a position that can best align the built-in coil of the first terminal device with the coil assembly 13. This can maximize the optimization of magnetic field coupling effect, reduce energy transmission loss caused by coil misalignment, thereby effectively improving the efficiency of wireless charging and reducing energy waste.

[0069] The structure that the convex tooth part 1421 is clamped in the clamping groove 1411 can provide stable connection during charging. Once clamping is completed, this structure can prevent displacement of the shell 12 during charging due to external factors such as slight vibration or accidental touch. By selecting different clamping grooves 1411 for clamping, the position of the shell 12 can be adjusted to meet the charging needs of various first terminal devices, improving the versatility of the first wireless charging module 1, so that the device can be adjusted to the appropriate position through the clamping structure when facing various different terminal devices, achieving efficient charging, and thus providing users with a more convenient charging experience.

[0070] Specifically, the cross section of each clamping groove 1411 is a concave arc shape, which matches the shape of the convex tooth part 1421, and the cross section of the connection between each clamping groove 1411 is a convex arc shape, which smoothly connects each clamping groove 1411 and also makes the switching of the convex tooth part 1421 between each clamping groove 1411 more smooth, facilitating the user to move the position of the shell 12 relative to the coil assembly 13. When the user adjusts the position of the shell 12 to align the first terminal device built-in coil with the coil assembly 13, the user only needs to clamp the convex tooth part 1421 of the clamping piece 142 into the appropriate clamping groove 1411 to complete the positioning. This simple operation method does not require complex tools or excessive operation steps, providing users with a convenient charging experience.

[0071] Please refer to Figure 8 and Figure 9 Optionally, the bearing part 112 includes a bottom plate 1121 and a plurality of side walls 1122 arranged around the bottom plate 1121, the plurality of side walls 1122 include a first side wall 11221 and a second side wall 11222 arranged along a second direction Y, the outer surface of the first side wall 11221 and the outer surface of the second side wall 11222 are both provided with a convex tooth part 1421, the two convex tooth parts 1421 are arranged on two opposite side walls 1122 of the bearing part 112 arranged along the second direction Y, the second direction Y is perpendicular to the first direction X, and the two positioning pieces 141 are arranged between the bearing part 112.

[0072] The arrangement of the convex tooth parts 1421 on the two opposite side walls 1122 and the two positioning pieces 141 makes the entire structure more stable during charging. When subjected to external interference such as slight vibration or external force touch, this multi-directional structure combined with the clamping of the convex tooth part 1421 and the clamping groove 1411 can limit unnecessary movement of the shell 12 from the first direction X and the second direction Y. This stable structure helps to maintain the relative positional relationship between the first terminal device built-in coil and the coil assembly 13, ensures the stability of the magnetic field coupling, prevents charging interruption or efficiency reduction due to shell 12 shaking, and ensures the smooth progress of the charging process.

[0073] Specifically, in combination with Figure 8 and Figure 9The bottom plate 1121 is provided with a first groove structure 11211 and a second groove structure 11212. The first groove structure 11211 is arranged close to the first side wall 11221 to provide deformation space for the first side wall 11221 in the second direction Y. The second groove structure 11212 is arranged close to the second side wall 11222 to provide deformation space for the second side wall 11222 in the second direction Y.

[0074] It can be understood that the first side wall 11221 and the second side wall 11222 have a certain elasticity. When the clamping piece 142 switches between different clamping positions of the positioning piece 141, the two side walls 1122 can be deformed so that the clamping piece 142 is clamped into the appropriate position. The first groove structure 11211 and the second groove structure 11212 weaken the structural strength of the first side wall 11221 and the second side wall 11222, so that the first side wall 11221 and the second side wall 11222 are more easily deformed. The existence of these groove structures can avoid damage to the side wall 1122 due to the lack of deformation space. When the clamping piece 142 is clamped into or removed from the clamping position, a certain force may be generated on the side wall 1122. The groove structure can allow the side wall 1122 to have enough space for slight deformation to adapt to this force, thereby prolonging the service life of the side wall 1122.

[0075] During long-term use, normal deformation of the side wall 1122 can ensure that the clamping and positioning functions between the protrusion tooth part 1421 and the positioning piece 141 are normal. If the side wall 1122 cannot deform normally, it may cause problems such as smooth clamping or inaccurate positioning. The first groove structure 11211 and the second groove structure 11212 provide deformation space to ensure that the side wall 1122 can maintain its function in various situations, thereby ensuring the normal operation of the entire first wireless charging module 1, improving the reliability of the device, and reducing the possibility of charging failure caused by problems with the side wall 1122.

[0076] In some optional embodiments, in combination with Figure 8 and Figure 9 The first elastic member 15 is arranged between the bottom plate 1121 and the first side wall 11221. The first elastic member 15 can provide a restoring force for the first side wall 11221 in the second direction Y and away from the bottom plate 1121. The second elastic member 16 is arranged between the bottom plate 1121 and the second side wall 11222. The second elastic member 16 can provide a restoring force for the second side wall 11222 in the second direction Y and away from the bottom plate 1121.

[0077] When the side wall 1122 is deformed due to external force (such as clamping operation, device placement pressure, etc.) during charging, the elastic member can ensure that the side wall 1122 returns to the original position. Specifically, when the clamping member 142 is clamped or unclamped, the side wall 1122 may be displaced or deformed. The restoring force of the elastic member can make the side wall 1122 quickly return to the normal state, ensure the relative position between the convex tooth part 1421 on the side wall 1122 and the positioning member 141, and thus maintain the effectiveness of the clamping structure, ensure the relative position between the built-in coil of the first terminal device and the coil assembly 13, and be beneficial to improve the wireless charging efficiency.

[0078] The presence of the elastic member enhances the stability of the entire structure. During charging, even if subjected to slight external vibration or other interference, the side wall 1122 may be slightly displaced. The first elastic member 15 and the second elastic member 16 can provide a reverse restoring force in time to prevent the side wall 1122 from excessive displacement, thereby avoiding the loosening or deformation of the entire positioning assembly 14 caused by the change of the position of the side wall 1122. Such stability helps to maintain the stable relative position relationship between the built-in coil of the first terminal device and the coil assembly 13, ensures stable magnetic field coupling, reduces energy loss, and improves charging efficiency.

[0079] Exemplarily, in combination with Figure 4 and Figure 8 , the coil assembly 13 is provided with a second mounting hole 13a, and the bearing part 112 extends a positioning column 112a towards the coil assembly 13, the positioning column 112a is provided in the second mounting hole 13a to determine the relative position of the coil assembly 13 and the bearing part 112. In this way, when the coil assembly 13 is installed on the bearing part 112, through the cooperation of the positioning column 112a and the second mounting hole 13a, the coil assembly 13 can be accurately installed at the right position, avoiding the misplacement of the coil assembly 13 and the bearing part 112, and improving the installation efficiency.

[0080] Specifically, the mounting hole is a plurality of mounting holes, the positioning column 112a is a plurality of positioning columns 112a, and one positioning column 112a is provided in one mounting hole. The positioning member 141 is provided with an accurate mounting position, which helps to ensure that each positioning member 141 can be accurately mounted in the corresponding mounting hole, thereby realizing the accurate positioning of the coil and the coil support 11.

[0081] As an optional implementation, the shell 12 comprises a first shell 121 and a second shell 122, the first shell 121 is provided with buckles on both sides along the second direction Y, and the first shell 121 and the second shell 122 are connected through the buckles. Specifically, the first shell 121 is a front shell, and the second shell 122 is a rear shell. The second shell 122 is provided with a relief groove 12a, the second end of the connecting part 111 passes through the second shell 122 and is connected with the bearing part 112, the contact surface of the first shell 121 with the first terminal device is a concave arc surface, and the built-in coil of the first terminal device corresponds to the concave arc surface on the first shell 121. The side of the bearing part 112 close to the first shell 121 and the side close to the second shell 122 are both provided with a rib, and the rib is in contact with the first shell 121 and the second shell 122 to prevent the bearing part 112 from shaking forward and backward.

[0082] In some possible implementations, in combination with Figure 1 and Figure 2 The base 4 has an upper surface 41, the upper surface 41 is provided with a first mounting hole 41a, the first wireless charging module 1 passes through the first mounting hole 41a, one end of the first wireless charging module 1 is located in the base 4 and connected with the upper surface 41 of the base 4, the base 4 is provided with a mainboard 42, and the first wireless charging module 1 is electrically connected with the mainboard 42.

[0083] The wireless charging device 100 further comprises a second wireless charging module 2, the second wireless charging module 2 is connected with the base 4 and electrically connected with the mainboard 42, and the second wireless charging module 2 is configured to charge a second terminal device.

[0084] The wireless charging device 100 further comprises a third wireless charging module 3, the third wireless charging module 3 is arranged on the mainboard 42 in the base 4, the third wireless charging module 3 is electrically connected with the mainboard 42, and the third wireless charging module 3 is configured to charge a third terminal device. The upper surface 41 of the base 4 has a charging area 31, and the charging area 31 is configured to place the third terminal device.

[0085] Among them, at least two of the first terminal device, the second terminal device and the third terminal device are different terminal devices, and the first terminal device, the second terminal device and the third terminal device respectively include a watch, a mobile phone and a headset.

[0086] Such a multi-module charging design greatly increases the functionality of the charging device, and users do not need to prepare multiple separate charging devices for different devices, greatly improving the convenience of charging, saving space, and reducing the clutter of charging devices.

[0087] The installation layout of the first wireless charging module 1 makes the structure of the charging device compact and reasonable, which helps to reduce the overall volume of the charging device while ensuring effective connection between the modules. The connection between the first wireless charging module 1 and the main board 42 is inside the base 4, which can reduce the exposure of the lines and reduce the risk of line damage, improve the safety and aesthetics of the charging device. The second wireless charging module 2 is connected to the base 4 and electrically connected to the main board 42, and the third wireless charging module 3 is arranged on the main board 42 and electrically connected to the main board 42, which ensures that each wireless charging module can stably obtain electric energy. During the charging process, stable electrical connection can ensure that each wireless charging module can provide sufficient electric energy for the corresponding terminal device according to the design requirements, avoiding problems such as charging interruption or slow charging speed caused by unstable electrical connection, and improving the charging efficiency and reliability of the entire wireless charging device 100.

[0088] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A wireless charging device, characterized by, The wireless charging device comprises: a base; a first wireless charging module configured to charge a first terminal device, the first wireless charging module comprising a support, a housing and a coil assembly, the support being arranged on the base, the coil assembly being connected to the support, the coil assembly being located in the housing, the housing being movably connected to the support so that the relative position of the housing and the coil assembly is adjustable; the housing is movably connected to the coil assembly along a first direction, the first direction being a direction in which the housing is close to or away from the base; the support comprises a connecting portion and a bearing portion, the bearing portion being located in the housing, the coil assembly being arranged on the bearing portion, a first end of the connecting portion being connected to the base, a second end of the connecting portion extending into the housing and being connected to the bearing portion; a positioning assembly is arranged between the housing and the coil assembly, the positioning assembly being configured to position the housing after adjusting the relative position of the housing and the coil assembly.

2. The wireless charging device of claim 1, wherein, a relief groove is formed on the housing, the second end of the connecting portion is arranged in the relief groove, and the size of the relief groove is greater than the size of the second end of the connecting portion along the first direction.

3. The wireless charging device of claim 1, wherein, the positioning assembly comprises a positioning member and a clamping member, the positioning member is arranged in the housing, the clamping member is arranged on the bearing portion, a plurality of clamping positions are arranged on the positioning member along the first direction, and the clamping member can be clamped in any clamping position.

4. The wireless charging device of claim 3, wherein, the plurality of clamping positions comprise a plurality of clamping grooves, the clamping member comprises a protruding tooth portion, and the protruding tooth portion can be clamped in any clamping groove.

5. The wireless charging device of claim 4, wherein, the bearing portion comprises a bottom plate and a plurality of side walls arranged around the bottom plate, the plurality of side walls comprise a first side wall and a second side wall arranged along a second direction, the outer surface of the first side wall and the outer surface of the second side wall are provided with the protruding tooth portion, two protruding tooth portions are arranged on two opposite side walls of the bearing portion along the second direction, the second direction is perpendicular to the first direction, the positioning member is two, and the bearing portion is located between the two positioning members; the bottom plate is provided with a first groove structure and a second groove structure, the first groove structure is arranged close to the first side wall to provide deformation space for the first side wall along the second direction, and the second groove structure is arranged close to the second side wall to provide deformation space for the second side wall along the second direction.

6. The wireless charging device of claim 5, wherein, a first elastic member is arranged between the bottom plate and the first side wall, the first elastic member can provide a restoring force for the first side wall along the second direction and away from the bottom plate, and a second elastic member is arranged between the bottom plate and the second side wall, the second elastic member can provide a restoring force for the second side wall along the second direction and away from the bottom plate.

7. The wireless charging device of any one of claims 1-6, wherein, The base has an upper surface, the upper surface is provided with a first mounting hole, the first wireless charging module is arranged in the first mounting hole, one end of the first wireless charging module is located in the base and connected with the upper surface of the base, a mainboard is arranged in the base, and the first wireless charging module is electrically connected with the mainboard; The wireless charging device further comprises a second wireless charging module, the second wireless charging module is connected to the base and electrically connected with the mainboard, and the second wireless charging module is configured to charge a second terminal device; The wireless charging device further comprises a third wireless charging module, the third wireless charging module is arranged on the mainboard in the base, the third wireless charging module is electrically connected with the mainboard, the third wireless charging module is configured to charge a third terminal device, and the upper surface of the base has a charging area configured to place the third terminal device; At least two of the first terminal device, the second terminal device and the third terminal device are different terminal devices, and the first terminal device, the second terminal device and the third terminal device respectively comprise a watch, a mobile phone and a headset.

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