Wireless charging device

Abstract

This disclosure provides a wireless charging device. The wireless charging device includes: a housing with an installation space inside, and two ends of the housing along a first direction, namely a first end and a second end, with a communication hole on the end face of the first end communicating with the installation space; and a lifting platform assembly, which is vertically and vertically disposed in the housing along the first direction to switch between a first position and a second position. In the first position, the lifting platform assembly is located within the installation space, and the end face of the lifting platform assembly opposite to the second end is flush with the end face of the first end of the housing. In the second position, the lifting platform assembly passes through the communication hole, and the end face of the lifting platform assembly opposite to the second end protrudes from the end face of the first end. The lifting platform assembly has a coil and a magnet, suitable for magnetically charging electrical devices. According to the wireless charging device of this disclosure, switching the position of the lifting platform assembly adapts to the type of electrical device, taking into account both the charging reliability of magnetically attached electrical devices and the placement stability of non-magnetically attached electrical devices.

Description

Technical Field

[0001] This disclosure relates to the field of charging technology, and specifically to a wireless charging device. Background Technology

[0002] In the existing technology, when wireless charging devices charge electrical equipment, they cannot simultaneously ensure the charging reliability of magnetic electrical equipment on the wireless charging device and the placement stability of non-magnetic electrical equipment on the wireless charging device. Summary of the Invention

[0003] In view of this, the present disclosure provides a wireless charging device that takes into account both the charging reliability of magnetic charging devices and the placement stability of non-magnetic charging devices.

[0004] A wireless charging device according to an embodiment of this disclosure includes: a housing having an installation space therein, the housing having two ends along a first direction, namely a first end and a second end, the end face of the first end having a communication hole communicating with the installation space; and a lifting platform assembly, the lifting platform assembly being vertically and vertically disposed in the housing along the first direction to switch between a first position and a second position. In the first position, the lifting platform assembly is located within the installation space, and the end face of the lifting platform assembly facing away from the second end is flush with the end face of the first end of the housing. In the second position, the lifting platform assembly passes through the communication hole, and the end face of the lifting platform assembly facing away from the second end protrudes from the end face of the first end. The lifting platform assembly has a coil and a magnet, suitable for magnetically charging electrical devices.

[0005] According to the wireless charging device of this disclosure, a housing has an installation space inside, and the two ends of the housing along a first direction are a first end and a second end, respectively. The end face of the first end has a communication hole communicating with the installation space. A lifting platform assembly is movably disposed in the housing along the first direction to switch between a first position and a second position. In the first position, the lifting platform assembly is located in the installation space, and the end face of the lifting platform assembly opposite to the second end is flush with the end face of the first end of the housing. In the second position, the lifting platform assembly passes through the communication hole, and the end face of the lifting platform assembly opposite to the second end protrudes from the end face of the first end. The lifting platform assembly has a coil and a magnet, which is suitable for magnetically charging electrical devices. This allows the wireless charging device to flexibly switch the position of the lifting platform assembly according to the type of electrical device, thereby taking into account both the charging reliability of magnetic electrical devices and the placement stability of non-magnetic electrical devices.

[0006] In some embodiments of this disclosure, the wireless charging device includes a mounting base and a connecting block. The mounting base is disposed within the mounting space and fixed to the housing. The mounting base has a first track extending along the first direction. The connecting block is movably disposed on the first track along the first direction and cooperates with the lifting platform assembly.

[0007] In some embodiments of this disclosure, the wireless charging device further includes a driving member disposed in the installation space for driving the lifting platform assembly to move from the first position to the second position along the first direction.

[0008] In some embodiments of this disclosure, the lifting platform assembly has a stop portion, the driving member is an elastic member, one end of the elastic member is fixed relative to the housing, and the other end of the elastic member is provided with a connecting block, the elastic member cooperating with the stop portion by means of the connecting block.

[0009] In some embodiments of this disclosure, the lifting platform assembly has a stop portion, the wireless charging device includes a mounting base and a connecting block, the mounting base is disposed within the installation space and fixed to the housing, the mounting base has a first track extending along the first direction, the connecting block is movably disposed on the first track along the first direction, and the connecting block cooperates with the stop portion; the connecting block has a second track, the second track is annular, and the axis of the second track extends along the second direction; the wireless charging device further includes: a slide rod, the slide rod is rotatably disposed on the mounting base, the slide rod has a sliding pin, the sliding pin is movably disposed on the second track along the circumferential extension trajectory of the second track, and the first direction and the second direction are perpendicular.

[0010] In some embodiments of this disclosure, the driving member is an elastic member, one end of which is fixed relative to the mounting base, and the other end of which is connected to the connecting block. The elastic member cooperates with the stop portion through the connecting block.

[0011] In some embodiments of this disclosure, the first direction is the up-down direction, the first end is the upper end of the housing, the second end is the lower end of the housing, and the inner and outer peripheral walls of the upper end of the second track each have an upwardly protruding portion and a smooth portion extending along a third direction. The two sides of the second track along the third direction are respectively the first side and the second side. The smooth portion is located on the side of the protruding portion facing the second side. In the first position, the sliding pin is located on the smooth portion. The first direction, the second direction, and the third direction are perpendicular to each other.

[0012] In some embodiments of this disclosure, the inner and outer peripheral walls of the lower end of the second track have upwardly recessed portions. The two sides of the second track along a third direction are a first side and a second side, respectively. The lowest point of the second track is located on the side of the recess facing the first side. In the second position, the sliding pin is located at the lowest point of the second track. The first direction, the second direction, and the third direction are perpendicular to each other.

[0013] In some embodiments of this disclosure, the mounting base has a third track extending along the first direction, and the lifting platform assembly has a sliding portion movably disposed on the third track along the first direction.

[0014] In some embodiments of this disclosure, the wall of the connecting hole has a limiting groove, and the outer peripheral wall of the lifting platform assembly is provided with an elastic cantilever buckle that cooperates with the limiting groove. In the first position, the elastic cantilever buckle is disengaged from the limiting groove, and in the second position, the elastic cantilever buckle is engaged with the limiting groove and locked.

[0015] In some embodiments of this disclosure, the outer peripheral wall of the lifting platform assembly has an opening, and the inner wall of the opening is provided with an elastic arm. The elastic arm is a cantilever beam structure, one end of which is fixedly connected to the inner wall of the opening, and the other end is a free end. The elastic cantilever is snapped onto the free end of the elastic arm. In the second position, a portion of the elastic arm is located on the side of the first end face away from the second end.

[0016] In some embodiments of this disclosure, the wall of the connecting hole includes a guide region located on the side of the limiting groove facing the second end. From the first end to the second end, the guide region is inclined in a direction away from the center of the connecting hole.

[0017] In some embodiments of this disclosure, the housing has a first fan cavity spaced apart from the installation space, the housing also has an air inlet communicating with the first fan cavity, the end face of the first end is provided with an air outlet communicating with the first fan cavity, and the wireless charging device further includes: a first fan, the first fan being disposed in the first fan cavity.

[0018] In some embodiments of this disclosure, the first fan cavity is located on the side of the installation space near the second end, the housing has an air supply channel spaced apart from the installation space, the air supply channel is located on the circumferential side of the first fan cavity and extends along a first direction, one end of the air supply channel is connected to the first fan cavity, and the other end has the air outlet.

[0019] In some embodiments of this disclosure, the lifting platform assembly includes: a housing, which is vertically and vertically disposed at the communicating hole along the first direction; and a base, which is disposed within the housing, and the coil and the magnet are disposed on the base.

[0020] In some embodiments of this disclosure, the lifting platform assembly further includes: a heat sink, a portion of which is disposed within the housing and is thermally connected to the base; the housing is open at one end facing the second end, forming an opening; the heat sink passes through the opening and is partially disposed in the mounting space; the mounting space has a vent on the housing.

[0021] In some embodiments of this disclosure, the heat sink is a heat sink fin; and / or, the heat sink includes: a heat-conducting base and a second fan, the heat-conducting base being thermally connected to the base, the heat-conducting base having an air duct, the air duct being disposed opposite to the vent, and the second fan being disposed on the heat-conducting base.

[0022] In some embodiments of this disclosure, there are multiple coils, and the multiple coils are arranged along the direction from the inner peripheral side to the outer peripheral side of the coil. Attached Figure Description

[0023] Figure 1 This is a perspective view of a wireless charging device according to an embodiment of the present disclosure.

[0024] Figure 2 This is a side view of a wireless charging device according to Embodiment 1 of this disclosure.

[0025] Figure 3 yes Figure 2 Sectional view at point AA.

[0026] Figure 4 yes Figure 3 Enlarged view of point B in the middle.

[0027] Figure 5 This is a side view of a wireless charging device according to Embodiment 2 of this disclosure.

[0028] Figure 6 yes Figure 5 Sectional view at point CC.

[0029] Figure 7 yes Figure 6 Enlarged view of point F in the middle.

[0030] Figure 8 This is a perspective view of a portion of the structure of a wireless charging device according to an embodiment of the present disclosure, wherein the housing is not shown.

[0031] Figure 9This is a schematic diagram showing the interaction between the lifting platform assembly and other structures of a wireless charging device according to an embodiment of the present disclosure.

[0032] Figure 10 This is a schematic diagram showing the cooperation between the mounting base, connecting block, driving component, and other structures of the wireless charging device according to embodiments of this disclosure.

[0033] Figure 11 yes Figure 1 Sectional view at point DD.

[0034] Figure 12 yes Figure 11 Enlarged view of point E in the middle.

[0035] Figure 13 This is a perspective view of a wireless charging device according to Embodiment 3 of this disclosure.

[0036] Figure 14 This is a side view of a wireless charging device according to Embodiment 3 of this disclosure.

[0037] Figure 15 yes Figure 14 A sectional view at point A'-A'.

[0038] Figure 16 yes Figure 15 Enlarged view of section B'.

[0039] Figure 17 This is a perspective view of a portion of the structure of a wireless charging device according to Embodiment 3 of this disclosure.

[0040] Figure 18 yes Figure 17 A magnified view of point C' in the middle.

[0041] Figure 19 yes Figure 17 Enlarged view of point D' in the middle.

[0042] Figure 20 This is a front view of a wireless charging device according to Embodiment 3 of this disclosure.

[0043] Figure 21 yes Figure 20 Sectional view at point E'-E'.

[0044] Figure 22 yes Figure 21 Enlarged view of point F' in the middle.

[0045] Figure label: 10. Wireless charging device; 1. Housing; 11. Installation space; 12. First end; 121. Protrusion; 13. Second end; 131. Stop; 14. Connecting hole; 141. Limiting groove; 142. Guide area; 15. First fan cavity; 16. Air inlet; 17. Air outlet; 18. Ventilation opening; 19. Air supply channel; 2. Lifting platform assembly; 21. Coil; 22. Magnet; 23. Stopping part; 24. Housing; 25. Base; 26. Flexible cantilever buckle; 27. Arm opening; 28. Heat sink; 281. Heat-conducting base; 282. Second fan; 283. Air duct; 29. ​​Sliding part; 3. Mounting base; 31. First rail; 32. Third rail; 4. Connecting block; 41. Second track; 42. Protrusion; 43. Smooth section; 44. Recess; 5. Drive components; 6. Slide rod; 61. Slide pin; 7. First fan; 210. Drive unit; 220. Transmission assembly; 221. Lead screw; 222. First slider; 230. Bracket; 231. First support part; 232. Second support part; 240. Guide rod; 250. Second slider; 251. Slide groove; 252. Rail groove; 260. Track component; 261. Slipper. Detailed Implementation

[0046] In this disclosure, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design described as "exemplary" or "for example" in this disclosure should not be construed as being more preferred or advantageous than other embodiments or designs. Rather, the use of terms such as "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0047] In the embodiments of this disclosure, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

[0048] In the description of embodiments of this disclosure, the term "at least one" refers to one or more, and "more than one" refers to two or more. "At least one of the following" or similar expressions refer to any combination of these items, including any combination of a single item or a plurality of items. For example, at least one of a, b, or c can represent: a, b, c, a, b, a, c, b, c, or a, b, c, where a, b, and c can be single or multiple.

[0049] In the description of embodiments of this disclosure, the term "and / or" refers to and covers any and all possible combinations of one or more of the associated listed items. The term "and / or" describes an association relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. Additionally, the character " / " in this disclosure generally indicates that the preceding and following related objects have an "or" relationship.

[0050] In the description of the embodiments disclosed herein, unless otherwise expressly specified and limited, the terms "installation", "connection" and "linking" should be interpreted broadly. For example, "linking" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium.

[0051] As used herein, "perpendicular" and "equal" include the described situation and situations that are similar to the described situation, within an acceptable range of deviation, which is determined by those skilled in the art taking into account the measurement under discussion and the error associated with the measurement of the particular quantity (i.e., the limitations of the measurement system). For example, "perpendicular" includes absolute perpendicularity and approximate perpendicularity, where the acceptable range of deviation for approximate perpendicularity could be, for example, a deviation within 10°. "Equal" includes absolute equality and approximate equality, where the acceptable range of deviation for approximate equality could be, for example, a difference between the two equalities less than or equal to 10% of either one.

[0052] In existing technologies, magnetic charging devices need to be magnetically attached to the magnetic position of the wireless charging device to achieve high-efficiency charging. If they cannot be magnetically attached, the charging efficiency may decrease or even fail to charge due to inaccurate coil positioning. In contrast, non-magnetic charging devices can be charged as long as they are roughly aligned with the coil.

[0053] However, some current wireless charging devices, when adapted to magnetically charging devices, design a raised platform of a certain height to avoid structural interference with the devices (such as the camera on a mobile phone). The platform contains a magnet and a coil to enable magnetic charging. However, when this type of wireless charging device charges non-magnetically charging devices, the presence of the raised platform, and the inability of the device to be fixed to the platform by magnetic force, causes the non-magnetically charging devices to be unstable and prone to slipping.

[0054] Therefore, current wireless charging devices cannot simultaneously guarantee the charging reliability of magnetic devices and the placement stability of non-magnetic devices when charging them.

[0055] According to the wireless charging device of this disclosure, the housing has an installation space, and the two ends of the housing along a first direction are a first end and a second end, respectively. The end face of the first end has a communication hole communicating with the installation space. The lifting platform assembly is movably disposed in the housing along the first direction to switch between a first position and a second position. In the first position, the lifting platform assembly is located in the installation space, and the end face of the lifting platform assembly opposite to the second end is flush with the end face of the first end of the housing. In the second position, the lifting platform assembly passes through the communication hole, and the end face of the lifting platform assembly opposite to the second end protrudes from the end face of the first end. The lifting platform assembly has a coil and a magnet, which is suitable for magnetically charging electrical devices. This allows the wireless charging device to flexibly switch the position of the lifting platform assembly according to the type of electrical device, thereby taking into account both the charging reliability of magnetic electrical devices and the placement stability of non-magnetic electrical devices.

[0056] The wireless charging device 10 according to an embodiment of the present disclosure is described below with reference to the accompanying drawings.

[0057] like Figure 1 and Figure 2 As shown, the wireless charging device 10 according to an embodiment of the present disclosure includes: a housing 1 and a lifting platform assembly 2.

[0058] Specifically, please refer to Figure 3 and Figure 4 As shown, the housing 1 has an installation space 11 inside, and the housing 1 is along a first direction (such as...). Figure 2 and Figure 3The two ends of the lifting platform assembly 2 (in the X direction shown) are the first end 12 and the second end 13, respectively. The end face of the first end 12 has a connecting hole 14 that communicates with the installation space 11. The lifting platform assembly 2 is vertically and vertically disposed on the housing 1 in the first direction to switch between the first position and the second position. In the first position, the lifting platform assembly 2 is located in the installation space 11, and the end face of the lifting platform assembly 2 facing away from the second end 13 is flush with the end face of the first end 12 of the housing 1. In the second position, the lifting platform assembly 2 passes through the connecting hole 14, and the end face of the lifting platform assembly 2 facing away from the second end 13 protrudes from the end face of the first end 12. The lifting platform assembly 2 has a coil 21 and a magnet 22, which is suitable for magnetically charging electrical equipment.

[0059] It should be noted that, due to factors such as tolerances, in the first position, the distance within 3mm between the end face of the lifting platform assembly 2 away from the second end 13 and the end face of the first end 12 of the housing 1 is also considered to be within the range of being flush. That is, in the first position, the end face of the lifting platform assembly 2 away from the second end 13 that protrudes or is lower than the end face of the first end 12 of the housing 1 within 3mm is also included in the protection scope of this disclosure.

[0060] It is understandable that when the lifting platform assembly 2 is in the first position, its end face away from the second end 13 is flush with the end face of the first end 12 of the housing 1. At this time, the surface of the first end 12 of the housing 1 remains flat, and non-magnetic charging electrical equipment can be directly and stably placed on the end face of the first end 12 of the housing 1 without relying on magnetic attraction to achieve stable placement, effectively avoiding the slippage problem caused by the presence of the lifting platform assembly 2.

[0061] When charging a magnetically charged device is required, the lifting platform assembly 2 can rise to a second position along the first direction. Its end face facing away from the second end 13 protrudes from the end face of the first end 12 of the housing 1, avoiding interference with certain structures of the device, such as a mobile phone camera. At this time, the magnet 22 on the lifting platform assembly 2 can precisely match the magnetic structure of the magnetically charged device, achieving reliable magnetic attraction. Simultaneously, the coil 21 can also be accurately aligned with the receiving coil 21 of the device, ensuring charging efficiency. Through this liftable design, the wireless charging device 10 can flexibly switch the position of the lifting platform assembly 2 according to the type of device, thus balancing the charging reliability of magnetically charged devices and the placement stability of non-magnetically charged devices.

[0062] According to the wireless charging device 10 of this disclosure, a housing 1 has an installation space 11 inside, and the two ends of the housing 1 along a first direction are a first end 12 and a second end 13, respectively. The end face of the first end 12 has a communication hole 14 communicating with the installation space 11. A lifting platform assembly 2 is vertically and vertically disposed in the housing 1 along the first direction to switch between a first position and a second position. In the first position, the lifting platform assembly 2 is located in the installation space 11, and the end face of the lifting platform assembly 2 facing away from the second end 13 is flush with the end face of the first end 12 of the housing 1. In the second position, the lifting platform assembly 2 passes through the communication hole 14, and the end face of the lifting platform assembly 2 facing away from the second end 13 protrudes from the end face of the first end 12. The lifting platform assembly 2 has a coil 21 and a magnet 22, which is suitable for magnetically charging electrical devices. This allows the wireless charging device 10 to flexibly switch the position of the lifting platform assembly 2 according to the type of electrical device, thereby taking into account both the charging reliability of magnetic electrical devices and the placement stability of non-magnetic electrical devices.

[0063] Please refer to some embodiments of this disclosure. Figure 1 , Figure 2 and Figure 3 As shown, the housing 1 has a first fan cavity 15 spaced apart from the installation space 11. The housing 1 also has an air inlet 16 communicating with the first fan cavity 15. The end face of the first end 12 is provided with an air outlet 17 communicating with the first fan cavity 15. The wireless charging device 10 also includes a first fan 7, which is located in the first fan cavity 15.

[0064] It is understandable that when wirelessly charging an electrical device, the device will generate heat, which will affect its charging efficiency. However, the first fan 7 provided in this disclosure can draw in cold air from the outside through the air inlet 16. The cold air is guided through the first fan cavity 15 and discharged from the air outlet 17, thereby blowing and cooling the side of the electrical device facing the first end 12.

[0065] When the lifting platform assembly 2 is in the second position charging a magnetic charging device, the gap between the device and the housing 1, formed by the lifting platform assembly 2 protruding from the housing 1, serves as a space for airflow. Cool air is discharged from the air outlet 17 and blows directly onto the device, quickly removing the heat generated during charging. When the lifting platform assembly 2 is in the first position carrying a non-magnetic charging device, the bottom of the device is either in contact with or not completely in contact with the first end 12 of the housing 1. The cool air discharged from the air outlet 17 can diffuse along the contact gap between the bottom of the device and the housing 1, effectively reducing the temperature of the device. This heat dissipation design, through the guidance of directional airflow, avoids the problem of reduced charging efficiency or device damage due to overheating, further improving the stability and safety of the wireless charging device 10.

[0066] Furthermore, an air inlet grille can be installed at the air inlet 16, and an air outlet grille can be installed at the air outlet 17. The air inlet grille can perform preliminary filtration of the cold air entering the first fan chamber 15, preventing dust, hair, and other debris from entering the interior of the first fan chamber 15 and avoiding their adhesion to the blades of the first fan 7 or the surface of the electrical equipment, which would affect the heat dissipation effect and the lifespan of the equipment. The air outlet grille can guide the exhaust airflow, allowing the cold air to be blown more accurately to the heat-generating area of ​​the electrical equipment, improving the targeted nature of the heat dissipation. At the same time, the installation of the air inlet and air outlet grilles can also enhance the safety of the device, preventing users from accidentally touching the internal structure of the fan during use, and reducing the probability of foreign objects accidentally entering the fan chamber. Taking the charging scenario of magnetic charging devices as an example, when the lifting platform assembly 2 is in the second position, the airflow guided by the exhaust grille can diffuse evenly along the gap between the device and the housing 1, ensuring that all areas of the device surface are covered by cool air. When charging non-magnetic charging devices, the airflow exhausted from the exhaust grille will penetrate along the gaps at the bottom of the device, making full contact with the bottom and quickly carrying away the accumulated heat. This grille structure design optimizes the airflow path and improves the overall protection performance of the device, further ensuring the stability and safety of the wireless charging process.

[0067] Please refer to some embodiments of this disclosure. Figure 2 and Figure 3 As shown, the first fan cavity 15 is located on the side of the installation space 11 near the second end 13. The housing 1 has an air supply channel 19 spaced apart from the installation space 11. The air supply channel 19 is located on the circumferential side of the first fan cavity 15 and extends along the first direction. One end of the air supply channel 19 is connected to the first fan cavity 15, and the other end has an air outlet 17.

[0068] Understandably, since the first fan cavity 15 is located on the side of the installation space 11 near the second end 13, that is, the first fan cavity 15 and the electrical equipment can be located on opposite sides of the housing 1 along the first direction, interference between the electrical equipment and the first fan 7 is avoided. After the first fan 7 is started, the generated airflow can be stably delivered to the air outlet 17 through the air supply channel 19. The design of the air supply channel 19 extending along the first direction can effectively reduce the loss of airflow during transmission, ensuring that the cold air reaches the vicinity of the electrical equipment at a high flow rate. For example, when the electrical equipment is placed in the installation space 11 for wireless charging, the cold air generated by the operation of the first fan 7 is guided by the air supply channel 19 and discharged from the air outlet 17, which can directly act on the side or bottom of the electrical equipment, quickly reducing the heat generated by the equipment during charging.

[0069] Meanwhile, the air supply duct 19 is spaced apart from the installation space 11, which prevents airflow from the air supply duct 19 from flowing into the installation space 11, ensuring that more airflow can flow to the electrical equipment, thus guaranteeing the cooling efficiency of the electrical equipment and improving the efficiency of wireless charging. In addition, the circumferential arrangement of the air supply duct 19 makes the layout of the first fan cavity 15 more compact. The positions of the fan and the air supply duct 19 are reasonably allocated within the limited space of the housing 1, which not only meets the heat dissipation requirements but also optimizes the internal structural design of the device.

[0070] Furthermore, such as Figure 3 and Figure 15 As shown, the first fan cavity 15 has a stop member 131. The stop member 131 is located at one end of the first fan cavity 15 facing the air supply channel 19. One end of the stop member 131 along the first direction is connected to the inner wall of the first fan cavity 15, and the other end is spaced apart from the inner wall of the first fan cavity 15.

[0071] The stopper 131 can effectively prevent water droplets, dust and other foreign objects that may be accidentally splashed or floating from the outside or the installation space 11 from directly entering the core components of the motor of the first fan 7, thereby avoiding motor failure or damage due to foreign object intrusion, and extending the service life and operational stability of the first fan 7.

[0072] Please refer to some embodiments of this disclosure. Figure 3 and Figure 4 As shown, the lifting platform assembly 2 includes: a housing 24 and a base 25. The housing 24 is vertically and vertically disposed at the connecting hole 14 along a first direction; the base 25 is disposed in the housing 24, and the coil 21 and the magnet 22 are disposed on the base 25.

[0073] Understandably, the base 25 can serve as the support for the coil 21 and the magnet 22. The surface of the base 25 has a groove matching the size of the coil 21. After the coil 21 is embedded in the groove, it is fixed with high-temperature resistant adhesive to ensure that the coil 21 will not shift due to vibration or lifting movements during charging. The magnet 22 is arranged in a ring array around the outside or inside of the coil 21.

[0074] Please refer to some embodiments of this disclosure. Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the lifting platform assembly 2 also includes a heat sink 28, part of which is disposed inside the housing 24 and is thermally connected to the base 25. The end of the housing 24 facing the second end 13 is open, forming an opening. The heat sink 28 passes through the opening and is partially disposed in the installation space 11. The installation space 11 has a vent 18 disposed on the housing 1.

[0075] Understandably, the heat sink 28 is designed to quickly dissipate the heat generated by the coil 21 during wireless charging. After the heat sink 28 is thermally connected to the base 25, it can transfer the heat generated by the coil 21 to itself via thermal conduction, and then remove the heat with the help of airflow within the mounting space 11. The open design provides a channel for the heat sink 28 to extend into the mounting space 11, thus increasing the heat dissipation area of ​​the heat sink 28, while the vents 18 on the mounting space 11 ensure airflow, further improving heat dissipation efficiency.

[0076] Furthermore, the ventilation opening 18 is located on the periphery of the outer casing 24, thereby avoiding interference with the arrangement of the first fan cavity 15 and making the overall arrangement reasonable.

[0077] Please refer to some embodiments of this disclosure. Figure 2 , Figure 3 and Figure 4 As shown, the heat sink 28 is a heat sink fin, which results in a simple structure, reliable installation, passive heat dissipation, no need for electrical structure, and low cost.

[0078] Please refer to some embodiments of this disclosure. Figure 5 , Figure 6 and Figure 7 As shown, the heat sink 28 includes a heat-conducting base 281 and a second fan 282. The heat-conducting base 281 is thermally connected to the base 25. The heat-conducting base 281 has an air duct 283, which is disposed opposite to the vent 18. The second fan 282 is disposed on the heat-conducting base 281. It should be noted that the second fan 282 is rotatably disposed on the heat-conducting base 281.

[0079] Understandably, the rotation of the second fan 282 actively drives airflow through the air duct 283, accelerating heat dissipation. After the heat-conducting base 281 is thermally connected to the base 25, it conducts the heat generated by the coil 21 to itself. When the second fan 282 starts, external air enters the installation space 11 through the vent 18, flows through the air duct 283 of the heat-conducting base 281, and exchanges heat with the inner wall of the air duct 283. The air carrying heat is then discharged through other vents 18, forming a continuous cooling airflow circulation. Compared to passive cooling methods that rely solely on heat dissipation fins, this active cooling structure can reduce the temperature of the coil 21 in a shorter time, making it particularly suitable for the rapid heat dissipation requirements in high-power wireless charging scenarios. The design of the air duct 283 and the vent 18 being positioned opposite each other ensures smooth airflow and prevents the formation of eddies within the installation space 11, further improving heat dissipation efficiency.

[0080] Please refer to some embodiments of this disclosure. Figure 3 and Figure 4As shown, there are multiple coils 21, which are arranged along the inner circumference to the outer circumference of the coil 21. On the one hand, the multiple coils 21 can be of different types, thus adapting to different models of electrical devices, such as wireless magnetic charging or wireless non-magnetic charging. On the other hand, the multiple coils 21 can also be multiple coils of the same type, thereby increasing the sensing area and meeting the charging needs of electrical devices of different sizes.

[0081] Specifically, when the device is placed on the surface of the base 25, if it supports magnetic charging, the magnetic coil 21 near the inner circumference can quickly align with the magnet 22 inside the device and start charging. If the device is non-magnetic, the non-magnetic coil 21 on the outer circumference can achieve power transmission through inductive coupling, without the need for precise positioning. For multiple coils 21 of the same type, such as non-contact induction coils 21, their annular arrangement from the inner to the outer circumference can form a continuous induction area. Even if the device is not perfectly aligned with a single coil 21 due to placement angle deviation, adjacent coils 21 can still generate sufficient induced electromotive force through magnetic field superposition, ensuring a stable and uninterrupted charging process. This multi-coil 21 arrangement design not only broadens the device's compatibility with different devices but also improves user convenience, effectively solving the pain point of traditional single-coil 21 charging requiring strict alignment.

[0082] Please refer to some embodiments of this disclosure. Figure 8 , Figure 9 and Figure 10 As shown, the wireless charging device 10 includes a mounting base 3 and a connecting block 4. The mounting base 3 is located in the installation space 11 and is fixed to the housing 1. The mounting base 3 has a first track 31 extending in a first direction. The connecting block 4 is movably located on the first track 31 in the first direction and cooperates with the lifting platform assembly 2.

[0083] It is understandable that by moving the connecting block 4 in the first direction, the lifting platform assembly 2 can be moved between the first position and the second position. The setting of the first track 31 can enable the connecting block 4 to move smoothly along the first direction and avoid the connecting block 4 from deviating in other directions, thereby improving the stability of the lifting platform assembly 2 in the first direction.

[0084] It should be noted that there are multiple mounting bases 3 arranged circumferentially along the lifting platform assembly 2, and multiple connecting blocks 4 corresponding one-to-one with the multiple mounting bases 3. For example, in this disclosure, there are two mounting bases 3 evenly arranged circumferentially along the lifting platform assembly 2, and two corresponding connecting blocks 4. This makes the lifting of the lifting platform assembly 2 along the first direction more stable and reliable.

[0085] Please refer to some embodiments of this disclosure. Figure 8 , Figure 9 and Figure 10 As shown, the wireless charging device 10 also includes a driving component 5, which is disposed in the installation space 11 and is used to drive the lifting platform assembly 2 to move from the first position to the second position along the first direction.

[0086] It should be noted that, since the lifting platform assembly 2 is located within the installation space 11 in the first position, and the end face of the lifting platform assembly 2 facing away from the second end 13 is flush with the end face of the first end 12 of the housing 1, it is difficult to manually drive the lifting platform assembly 2 back to the second position. However, by driving the lifting platform assembly 2 along the first direction from the first position to the second position through the driving component 5, the lifting platform assembly 2 can automatically return from the first position to the second position (wherein, automatic return refers to the automatic return after being triggered by certain structures, such as pressing, without the need for manual driving of the lifting platform assembly 2 from the first position to the second position), no manual adjustment is required, which improves the ease of use of the device.

[0087] In some embodiments of this disclosure, the driving component 5 is a drive motor, thereby realizing automated lifting control of the lifting platform assembly 2 along the first direction without manual adjustment, thus improving the ease of use of the device. The output shaft of the drive motor can be connected to the lifting platform assembly 2 through gear transmission, lead screw transmission, or belt transmission, etc., to convert the rotational motion of the motor into linear motion of the lifting platform assembly 2 along the first direction.

[0088] For example, in an embodiment using a lead screw drive, the output shaft of the drive motor is fixedly connected to the lead screw, and the lifting platform assembly 2 is provided with a threaded hole that matches the lead screw. When the drive motor rotates forward or reverse, the lead screw drives the lifting platform assembly 2 to rise or fall along the first direction, thereby realizing the precise movement of the lifting platform assembly 2 between the first position and the second position.

[0089] In addition, the drive motor can be equipped with an encoder or position sensor to monitor the position of the lifting platform assembly 2 in real time, enabling precise control of the lifting stroke and preventing damage to the device or reduced charging efficiency due to excessive lifting. This drive method not only has a compact structure and occupies little installation space, but also provides stable driving force, ensuring that the lifting platform assembly 2 maintains good operational stability during long-term use.

[0090] Please refer to some embodiments of this disclosure. Figure 8 , Figure 9 and Figure 10 As shown, the lifting platform assembly 2 has a stop part 23, and the driving member 5 is an elastic member. One end of the elastic member is fixed relative to the housing 1, and the other end of the elastic member is provided with a connecting block 4. The elastic member cooperates with the stop part 23 by means of the connecting block 4.

[0091] Understandably, since the drive component 5 is an elastic component, no additional motor or control circuit is required, which not only simplifies the internal layout of the device, but also reduces energy consumption and maintenance costs, making it particularly suitable for cost-sensitive applications or those seeking lightweight structures.

[0092] Specifically, when the lifting platform assembly 2 moves from the second position to the first position, the stop portion 23 of the lifting platform assembly 2 pushes the connecting block 4, causing the elastic element to be compressed or stretched and storing elastic potential energy. When the external driving force disappears and the limit is released, the elastic element releases the stored potential energy and pushes the stop portion 23 in the opposite direction through the connecting block 4, causing the lifting platform assembly 2 to reset to the second position along the first direction. For example, in this disclosure, the elastic element is a compression spring, one end of which is fixed to the bottom of the housing 1, and the other end of the connecting block 4 abuts against the stop portion 23 of the lifting platform assembly 2. When the lifting platform assembly 2 is lowered to the first position by an external force, the stop portion 23 squeezes the connecting block 4, and the spring is compressed. Once the external force disappears and the limit is released, the spring's rebound force pushes the connecting block 4 and the stop portion 23, causing the lifting platform assembly 2 to automatically rise back to the second position.

[0093] It should be noted that when the first direction is vertical, with the first end 12 being the upper end and the second end 13 being the lower end, the connecting block 4 and the stop part 23 do not need to be connected. The weight of the lifting platform assembly 2 and the elastic force of the elastic element are sufficient to ensure that the stop part 23 and the connecting block 4 are tightly abutted. However, when the first direction is another direction, such as the left-right direction, the stop part 23 and the connecting block 4 need to be connected to prevent the connecting block 4 from disengaging from the stop part 23.

[0094] Please refer to some embodiments of this disclosure. Figure 8 , Figure 9 and Figure 10 As shown, the lifting platform assembly 2 has a stop portion 23, and the wireless charging device 10 includes a mounting base 3 and a connecting block 4. The mounting base 3 is disposed within the mounting space 11 and fixed to the housing 1. The mounting base 3 has a first track 31 extending along a first direction. The connecting block 4 is movably disposed on the first track 31 along the first direction, and the connecting block 4 cooperates with the stop portion 23. The connecting block 4 has a second track 41, which is annular, and the axis of the second track 41 is along a second direction (e.g., ...). Figure 8 Extending in the Y direction shown; the wireless charging device 10 also includes: a slide rod 6, which is rotatably mounted on the mounting base 3, the slide rod 6 having a sliding pin 61, the sliding pin 61 being movably mounted on the second track 41 along the circumferential extension trajectory of the second track 41, the first direction and the second direction being perpendicular.

[0095] It is understandable that the rotation of the slide bar 6 can be converted into the linear movement of the connecting block 4 along the first direction through the cooperation of the sliding pin 61 and the second track 41, thereby driving the lifting platform assembly 2 to move along the first direction. Specifically, when the slide bar 6 rotates around its own axis, the sliding pin 61 will slide along the annular trajectory of the second track 41. Since the second track 41 is located on the connecting block 4, and the connecting block 4 is restricted by the first track 31 to move only along the first direction, the change in the position of the sliding pin 61 within the annular track will push the connecting block 4 to reciprocate along the first direction. For example, if the second track 41 is an elliptical annular structure, when the slide bar 6 drives the sliding pin 61 to rotate from one end of the major axis of the ellipse to the other end, the sliding pin 61 will push the connecting block 4 to move from the initial position to the target position along the first direction; conversely, when the sliding pin 61 rotates back from the other end of the major axis to the initial end, the connecting block 4 will reset in the opposite direction along the first direction.

[0096] This structure, which drives the connecting block 4 to move linearly through the rotation of the slide rod 6, smoothly converts rotational motion into linear motion, ensuring more precise and smooth movement of the lifting platform assembly 2 and effectively improving the motion control accuracy of the lifting platform assembly 2 in the wireless charging device 10. Simultaneously, the circular track design allows the continuous rotation of the slide rod 6 to correspond to the reciprocating linear motion of the connecting block 4, eliminating the need for an additional reversing mechanism, simplifying the device's mechanical structure, and reducing assembly complexity and maintenance costs.

[0097] Please refer to some embodiments of this disclosure. Figure 8 , Figure 9 and Figure 10 As shown, the driving component 5 is an elastic component. One end of the elastic component is fixed relative to the mounting base 3, and the other end of the elastic component is connected to the connecting block 4. The elastic component cooperates with the stop part 23 through the connecting block 4.

[0098] Understandably, the elastic element is configured to provide a reset or pre-tightening force to the connecting block 4, further optimizing the motion stability of the lifting platform assembly 2. Specifically, when the lifting platform assembly 2 moves from the second position to the first position, the elastic element is stretched or compressed accordingly, storing elastic potential energy. At this time, the sliding pin 61 moves to the side of the second track 41 facing the second end 13. When the sliding pin 61 is released in the first position, the elastic element releases its potential energy, causing the connecting block 4 to move in the opposite direction along the first direction, so that the lifting platform assembly 2 returns to the second position.

[0099] Please refer to some embodiments of this disclosure. Figure 8 , Figure 9 and Figure 10 As shown, the first direction is the vertical direction, the first end 12 is the upper end of the housing 1, the second end 13 is the lower end of the housing 1, and the inner and outer peripheral walls of the upper end of the second track 41 both have upwardly protruding protrusions 42 and along a third direction (such as... Figure 8and Figure 10 The smooth portion 43 extends in the Z direction (as shown). The second track 41 has a first side and a second side on both sides along the third direction. The smooth portion 43 is located on the side of the protrusion 42 facing the second side. In the first position, the sliding pin 61 is located in the smooth portion 43. The first direction, the second direction and the third direction are perpendicular to each other.

[0100] Understandably, the protrusion 42 and the flat section 43 can create a "blocking point" effect when the sliding pin 61 moves along the second track 41, ensuring that the lifting platform assembly 2 remains stable in a specific position.

[0101] Specifically, when the lifting platform assembly 2 is in the second position, pressing the lifting platform assembly 2 moves it from the second position to the first position. The connecting block 4 moves towards the second end 13, thereby driving the slide rod 6 to rotate and causing the sliding pin 61 to move along the second track 41 from the second end 13 to the first end 12. When the lifting platform assembly 2 moves to the first position, pressing the lifting platform assembly 2 continues to move it towards the second end 13, reaching the highest point of the protrusion 42. Under the elastic force of the driving member 5, the lifting platform assembly 2 is driven to move towards the first end 12, so that the sliding pin 61 passes over the protrusion 42 and enters the flat part 43, improving the pressing feel of the lifting platform assembly 2.

[0102] Once the sliding pin 61 reaches the leveling section 43, it will lock in place, preventing the spring force of the drive component 5 from driving the sliding pin 61 to continue moving. When the lifting platform assembly 2 needs to return to the second position, pressing the lifting platform assembly 2 causes it to move towards the second end 13. Simultaneously, the connecting block 4 moves towards the second end 13 and drives the slide rod 6 to rotate. The sliding pin 61 then moves along the second track 41 from the first end 12 to the second end 13. Due to the height difference between the leveling section 43 and the protrusion 42, the sliding pin 61 must first overcome the obstruction of the protrusion 42—under the action of the pressing force, the sliding pin 61 will move upward along the inclined surface of the protrusion 42 until it passes the highest point of the protrusion 42. At this time, the lifting platform assembly 2 is released, and the elastic force of the drive component 5 will quickly push the lifting platform assembly 2 back to the first end 12. The sliding pin 61 will slide down along the protrusion 42 toward the second end 13, and finally disengage from the flat part 43 and return to the initial area of ​​the second track 41. The lifting platform assembly 2 will then stay stably in the second position.

[0103] Throughout the process, the "blocking point" of the protrusion 42 and the "locking" of the smooth part 43 work together to ensure the stability of the lifting platform assembly 2 in the first position, and to achieve smooth position switching through the pressing action, thereby improving the convenience of user operation and the consistency of feel.

[0104] Please refer to some embodiments of this disclosure. Figure 8 , Figure 9 and Figure 10As shown, the inner and outer peripheral walls of the lower end of the second track 41 have upwardly recessed recesses 44. The two sides of the second track 41 along the third direction are the first side and the second side, respectively. The lowest point of the second track 41 is located on the side of the recess 44 facing the first side. In the second position, the sliding pin 61 is located at the lowest point of the second track 41. The first direction, the second direction and the third direction are perpendicular to each other.

[0105] Understandably, the design of the recessed portion 44 limits the sliding pin 61 located at the lowest point, preventing the sliding pin 61 from moving from the second side to the flat portion 43, and better guiding the sliding pin 61 from the first side to the protrusion 42 and across the protrusion 42 into the flat portion 43, further ensuring the stability of the lifting platform assembly 2 in the first position and improving the user's operating feel.

[0106] Please refer to some embodiments of this disclosure. Figure 8 , Figure 9 and Figure 10 As shown, the mounting base 3 has a third track 32 extending along a first direction, and the lifting platform assembly 2 has a sliding part 29, which is movably disposed on the third track 32 along the first direction. This further improves the smoothness of the lifting of the lifting platform assembly 2.

[0107] In some embodiments of this disclosure, please refer to Figure 11 and Figure 12 As shown, the wall of the connecting hole 14 has a limiting groove 141, and the outer peripheral wall of the lifting platform assembly 2 is provided with an elastic cantilever buckle 26 that cooperates with the limiting groove 141. In the first position, the elastic cantilever buckle 26 is disengaged from the limiting groove 141, and in the second position, the elastic cantilever buckle 26 is engaged with the limiting groove 141 and locked.

[0108] Understandably, in the second position, the elastic cantilever latch 26 engages with the limiting groove 141 to lock, ensuring good support for the lifting platform assembly 2 and preventing accidental slippage due to its own weight or slight external contact. This further enhances the structural stability and safety of the device in the second position. In the first position, the elastic cantilever latch 26 disengages from the limiting groove 141, allowing the lifting platform assembly 2 to smoothly adjust its height without interference from the limiting structure affecting its mobility.

[0109] In some embodiments of this disclosure, please refer to Figure 11 and Figure 12As shown, the outer peripheral wall of the lifting platform assembly 2 has an opening 27, and the inner wall of the opening 27 is provided with an elastic arm. The elastic arm is a cantilever beam structure, one end of which is fixedly connected to the inner wall of the opening 27, and the other end is a free end. The elastic cantilever buckle 26 is provided at the free end of the elastic arm. In the second position, part of the elastic arm is located on the side of the end face of the first end 12 that is away from the second end 13.

[0110] It should be noted that one side of the elastic arm is connected to the inner wall of the opening 27, while the other side is spaced apart from the inner wall of the opening 27, thus realizing that the elastic arm is a cantilever beam structure. The outer contour of the elastic arm can be U-shaped, V-shaped, or W-shaped, etc.

[0111] Understandably, one side of the elastic arm is connected to the inner wall of the opening 27, while the other side is spaced apart from the inner wall of the opening 27, thereby enabling the deformation of the elastic arm and switching between the engaged and disengaged states of the elastic cantilever buckle 26 and the limiting groove 141. In the second position, part of the elastic arm is located on the side of the first end 12 facing away from the second end 13, making it easy for a person to press the elastic arm when the lifting platform assembly 2 reaches the second position, thus switching between the engaged and disengaged states of the elastic cantilever buckle 26 and the limiting groove 141.

[0112] Specifically, when the lifting platform assembly 2 moves from the first position to the second position, the elastic arm rises synchronously with it. At this time, the elastic cantilever latch 26 at the free end of the elastic arm also moves, gradually approaching and engaging with the corresponding limiting groove 141, thus fixing the lifting platform assembly 2 in the second position. When it is necessary to move the lifting platform assembly 2 downwards from the second position, the user can directly press the exposed part of the elastic arm through the opening 27, causing the elastic arm to bend towards the center, thus disengaging the elastic cantilever latch 26 from the limiting groove 141. At this point, the lifting platform assembly 2 loses its limiting constraint and can slide downwards along the track to the first position under external force. This design, through the deformation characteristics of the elastic arm, achieves stable locking of the lifting platform assembly 2 in different positions and simplifies the operation process, allowing position switching to be completed without additional tools, thus improving the ease of use of the device.

[0113] In some embodiments of this disclosure, please refer to Figure 11 and Figure 12 As shown, the wall of the connecting hole 14 includes a guide region 142, which is located on the side of the limiting groove 141 facing the second end 13. From the first end 12 to the second end 13, the guide region 142 is inclined in a direction away from the center of the connecting hole 14.

[0114] Understandably, the inclined design of the guide area 142 provides a smooth guiding path for the engagement of the elastic cantilever latch 26. When the lifting platform assembly 2 moves from the first position to the second position, the end of the elastic cantilever latch 26 first contacts the inclined surface of the guide area 142. As the lifting platform assembly 2 continues to rise, the component force generated by the inclined surface drives the elastic arm to deform slightly towards the center of the connecting hole 14, allowing the elastic cantilever latch 26 to slide smoothly into the limiting groove 141. This guiding structure effectively avoids hard collisions between the latch and the edge of the limiting groove 141, reduces wear on components, and makes the engagement action smoother, without requiring additional adjustment force from the user. When the lifting platform assembly 2 moves from the second position to the first position, the design of the guide area 142 also better guides the elastic cantilever latch 26 to disengage from the hole wall of the connecting hole 14.

[0115] In some embodiments of this disclosure, such as Figure 16 , Figure 17 and Figure 18 As shown, the wireless charging device 10 may also include a drive device 210, which is disposed in the installation space 11 and is used to drive the lifting platform assembly 2 to move along a first direction between a first position and a second position.

[0116] It should be noted that either electric drive or manual + elastic element drive reset can be selected to move the lifting platform assembly 2 between the first position and the second position along the first direction.

[0117] For example, in Embodiment 1 and Embodiment 2, the movement of the lifting platform assembly 2 along the first direction between the first position and the second position is achieved by manual operation and elastic element driven reset.

[0118] In Embodiment 3, the movement of the lifting platform assembly 2 along the first direction between the first position and the second position can be achieved by the electric drive of the drive device 210.

[0119] The drive unit 210 provides a stable power source for the lifting and lowering action of the lifting platform assembly 2, ensuring smooth and accurate switching between the first and second positions. The drive unit 210 is located within the installation space 11, resulting in a more compact overall structure and avoiding potential damage or interference to other components from exposed drive components. It also contributes to the minimalist appearance of the wireless charging device 10. Precise control of the drive unit 210 allows for accurate stopping of the lifting platform assembly 2 at different positions, better meeting the different usage needs of both magnetic and non-magnetic charging devices, without requiring manual adjustment, thus improving ease of use.

[0120] For example, when the lifting platform assembly 2 needs to be raised from the first position to the second position, the drive device 210 receives the corresponding trigger signal and can drive the lifting platform assembly 2 to rise smoothly and accurately stop at the preset second position, ensuring the precise cooperation between the magnet 22 and the magnetic attraction structure of the electrical equipment and the accurate alignment of the coil 21; when it needs to be lowered from the second position to the first position, the drive device 210 can also provide a stable driving force to make the lifting platform assembly 2 fall smoothly back, ensuring that its end face away from the second end 13 is flush with the end face of the first end 12 of the housing 1, restoring the flat state of the surface of the first end 12 of the housing 1, so that the non-magnetic charging electrical equipment can be placed stably.

[0121] It should be noted that the lifting platform assembly 2 can identify the model of the electrical device through magnetic attraction induction or coil 21 induction. For example, when the electrical device is a device with a magnetic attraction structure, when it is close to the first end 12 of the wireless charging device 10, the magnetic force generated between the magnet 22 and the magnetic attraction structure of the electrical device will trigger the magnetic attraction induction module inside the device. The module transmits the induction signal to the control unit, which then determines that the electrical device is a magnetic charging type and sends a command to the drive device 210 to drive the lifting platform assembly 2 to rise to the second position to complete the magnetic docking and charging preparation.

[0122] For non-magnetic charging devices, when placed on the first end 12 of the housing 1, the bottom of the device typically does not trigger magnetic attraction, and the lifting platform assembly 2 remains in the first position, ensuring that the device can be stably placed on the flat surface of the housing 1 for non-contact charging. This identification method can accurately distinguish different types of devices, thereby automatically matching the corresponding charging mode, improving the intelligence and ease of use of the wireless charging device 10.

[0123] In addition, the control unit can also sense the presence and related parameters of the corresponding coil 21 inside the electrical device through the coil 21, and then identify its model to determine whether magnetic charging is required.

[0124] In some embodiments of this disclosure, such as Figure 13 , Figure 14 , Figure 15 , Figure 16 , Figure 17 , Figure 18 As shown, the drive device 210 is a drive motor; the wireless charging device 10 also includes a transmission component 220, which is located in the installation space 11. The lifting platform assembly 2 and the drive device 210 are connected by transmission through the transmission component 220. The transmission component 220 is used to convert the rotation of the drive device 210 into the lifting of the lifting platform assembly 2.

[0125] Understandably, the drive unit 210 uses a drive motor to provide stable and controllable power output. The transmission component 220 transmits power and converts the motion form, thereby precisely controlling the switching of the lifting platform assembly 2 between the first and second positions. The transmission component 220 effectively converts the rotational motion of the drive motor into linear lifting motion of the lifting platform assembly 2 along the first direction, ensuring a smooth and reliable lifting process. This transmission connection method is not only compact in structure but also guarantees the positional accuracy of the lifting platform assembly 2 during the lifting process, meeting the position switching requirements of the wireless charging device 10 when charging different types of electrical equipment, further improving the overall performance and ease of use of the wireless charging device 10.

[0126] It should be noted that when the drive motor is a stepper motor (such as in the embodiments of this disclosure), it has precise position control capability. By setting a specific pulse signal, the motor can stop rotating after driving the lifting platform assembly 2 to the second position. The holding torque of the stepper motor is used to achieve position locking, thereby stably supporting the electrical equipment and preventing it from moving unexpectedly during charging.

[0127] If the drive motor is a common DC or AC motor, a self-locking mechanism (not shown), such as a worm gear structure or an electromagnetic brake, can be added to the transmission assembly 220. Taking the worm gear structure as an example, due to its reverse self-locking characteristic, that is, the worm can drive the worm wheel to rotate, but the worm wheel cannot drive the worm to rotate, when the lifting platform assembly 2 rises to the second position, the drive motor stops working, and the worm gear structure can prevent the lifting platform assembly 2 from descending due to its own weight or the pressure of the electrical equipment, thereby achieving reliable locking.

[0128] Whether it is the holding torque locking of the stepper motor itself or the locking achieved through an additional self-locking structure, the core purpose is to ensure that the lifting platform assembly 2 can provide a stable support platform for the electrical equipment when it is in the second position, to ensure the smooth progress of the wireless charging process, and to avoid affecting the charging efficiency or damaging the electrical equipment due to the accidental fall of the lifting platform assembly 2.

[0129] In some embodiments of this disclosure, such as Figure 15 , Figure 16 , Figure 17 , Figure 18 As shown, the transmission assembly 220 includes a lead screw 221 and a first slider 222. The lead screw 221 is rotatably disposed in the installation space 11 and extends along a first direction. The lead screw 221 is coaxially connected to the output shaft of the drive device 210. The first slider 222 is connected to the lifting platform assembly 2, and the lead screw 221 is threadedly engaged.

[0130] It is understandable that the lead screw 221 and the first slider 222 form a helical transmission pair through a threaded structure. When the drive device 210 drives the lead screw 221 to rotate around its axis, the rotation of the lead screw 221 is converted into linear motion of the first slider 222 along the axial direction of the lead screw 221 (i.e., the first direction), thereby driving the lifting platform assembly 2 connected to the first slider 222 to move up and down synchronously. This lead screw 221 transmission method has the characteristics of high transmission accuracy, smooth operation, and strong load-bearing capacity, which can ensure the accuracy of the movement of the lifting platform assembly 2 in the first direction, thereby precisely controlling the contact between the electrical equipment and the lifting platform assembly 2, and providing a reliable structural foundation for efficient and stable wireless charging.

[0131] For example, when the electrical equipment needs to be lifted to the charging position, the drive device 210 drives the lead screw 221 to rotate forward, and the first slider 222 drives the lifting platform assembly 2 to move away from the second end 13 along the first direction; when charging is completed or the electrical equipment needs to be moved away, the drive device 210 drives the lead screw 221 to rotate in reverse, and the first slider 222 drives the lifting platform assembly 2 to move towards the second end 13 along the first direction, so as to achieve precise control of the lifting action.

[0132] In some embodiments of this disclosure, such as Figure 15 , Figure 16 , Figure 17 , Figure 18 As shown, the wireless charging device 10 further includes: a bracket 230 and a guide rod 240. The bracket 230 is disposed in the installation space 11 and connected to the housing 1. A driving device 210 is disposed at one end of the bracket 230 along a first direction. A lead screw 221 is rotatably disposed on the bracket 230. The guide rod 240 is arranged parallel to the lead screw 221 and is disposed on the bracket 230. The first slider 222 has a guide hole, and the guide rod 240 passes through the guide hole. The first slider 222 and the guide rod 240 can move relative to each other along the first direction.

[0133] Understandably, the bracket 230 mainly serves to support and fix the drive device 210, the lead screw 221, and the guide rod 240, providing a stable installation foundation and support frame for the entire lifting transmission mechanism. This ensures that each component maintains a stable relative position during operation, preventing displacement or deformation due to vibration or load, thereby guaranteeing the overall rigidity and operational reliability of the transmission system.

[0134] The function of the guide rod 240 is to precisely guide the movement direction of the first slider 222. Since the guide rod 240 is set parallel to the lead screw 221 and passes through the guide hole of the first slider 222, when the lead screw 221 drives the first slider 222 to move axially, the guide rod 240 can effectively limit the rotation of the first slider 222 around the axis of the lead screw 221 and the lateral offset perpendicular to the first direction during the movement. This ensures that the first slider 222 can only move in a straight line along the extension direction of the guide rod 240 (i.e., the first direction), further improving the smoothness and positional accuracy of the movement of the lifting platform assembly 2. Together with the helical transmission of the lead screw 221, it forms a stable and precise guiding transmission system.

[0135] In some embodiments of this disclosure, such as Figure 15 , Figure 16 , Figure 17 , Figure 18 As shown, the bracket 230 has a first support portion 231 at one end along the first direction and a second support portion 232 at the other end. The drive device 210 is disposed in the first support portion 231, and the guide rod 240 is disposed between the first support portion 231 and the second support portion 232. The first support portion 231 has a through hole, and one end of the lead screw 221 in the length direction passes through the through hole and is connected to the drive device 210 for transmission. The other end is rotatably connected to the second support portion 232.

[0136] It is understandable that the first support part 231 and the second support part 232 are both located on the same side of the thickness direction of the bracket 230, so that the bracket 230 forms a single-sided load-bearing structure in the thickness direction. This design can effectively reduce the overall space occupied by the bracket 230, and at the same time facilitate the centralized installation and maintenance of core components such as the drive device 210, the lead screw 221 and the guide rod 240.

[0137] The through hole on the first support 231 not only provides stable axial positioning for the lead screw 221, but also allows for the installation of rotating auxiliary components (not shown) such as bearings between the hole wall and the lead screw 221 to reduce frictional resistance during rotation and improve transmission efficiency. The second support 232, through a bearing seat or similar structure, forms a rotatable connection with the other end of the lead screw 221, ensuring that the lead screw 221 can rotate smoothly around its own axis under the drive of the drive device 210, avoiding radial runout or jamming, thus providing a reliable guarantee for the smooth movement of the first slider 222.

[0138] Furthermore, such as Figure 15 , Figure 16 , Figure 17 , Figure 18As shown, the first support portion 231 is located on the side of the second support portion 232 facing the second end 13. The end face of the first end 12 has a protrusion 121 that protrudes away from the second end 13. The first support portion 231 and a portion of the bracket 230 are located inside the protrusion 121.

[0139] Therefore, the convex bulge 121 provides local structural reinforcement to the first support portion 231 at the first end 12 of the bracket 230, while also providing additional space for the installation of the transmission assembly 220 and the movement of the first slider 222. Specifically, the design of the convex bulge 121 protruding away from the second end 13 allows sufficient installation depth for the transmission assembly 220 (such as a motor) and sufficient movement space for the first slider 222, preventing the transmission assembly 220 from being unable to lift the lifting platform assembly 2 to the second position due to space limitations.

[0140] In some embodiments of this disclosure, such as Figure 19 , Figure 20 , Figure 21 and Figure 22 As shown, a second slider 250 is provided on the outer peripheral wall of the lifting platform assembly 2. The second slider 250 and the transmission assembly 220 are spaced apart along the circumference of the lifting platform assembly 2. The second slider 250 has a groove 251 extending along a first direction. The wireless charging device 10 also includes a track member 260, which is fixed in the installation space 11. The track member 260 and the groove 251 slide in cooperation along the first direction. It should be noted that the two ends of the groove 251 along the first direction are open, which facilitates the installation of the track member 260.

[0141] It is understandable that by providing a second slider 250 on the outer peripheral wall of the lifting platform assembly 2, and distributing the second slider 250 and the transmission assembly 220 at intervals in the circumferential direction, additional guiding support can be provided for the lifting platform assembly 2 without interfering with the normal operation of the transmission assembly 220. The slide groove 251 extending along the first direction on the second slider 250 forms a sliding engagement with the track member 260 fixed in the installation space 11. This structural design strictly limits the movement trajectory of the lifting platform assembly 2 in the first direction (i.e., the lifting direction).

[0142] When the drive device 210 drives the lifting platform assembly 2 to move up and down, the sliding cooperation between the second slider 250 and the track component 260 can effectively resist the circumferential rotation or lateral offset that may occur during the movement of the lifting platform assembly 2, ensuring that the lifting platform assembly 2 always moves smoothly along the preset straight track.

[0143] This multi-slider (first slider 222 cooperates with lead screw 221, second slider 250 cooperates with track component 260) guiding method greatly improves the stability and accuracy of the movement of the lifting platform assembly 2 compared with a single guiding structure, avoiding charging alignment deviation or mechanical structure wear caused by shaking or offset, thereby further ensuring the overall reliability and service life of the wireless charging device 10.

[0144] Furthermore, multiple second sliders 250 are arranged along the circumferential direction of the lifting platform assembly 2, thereby further improving the lifting stability of the lifting platform assembly 2. For example, in this embodiment of the present disclosure, there are two second sliders 250 arranged along the circumferential direction of the lifting platform assembly 2, but the present disclosure is not limited to this, and there may be more second sliders 250, such as 3, 4, 5 or 6, etc.

[0145] Furthermore, such as Figure 19 , Figure 20 , Figure 21 and Figure 22 As shown, the slide groove 251 has rail grooves 252 extending along the first direction on both sides in the width direction, and the second slider 250 has sliders 261 on both sides in the width direction that cooperate with the rail grooves 252 and slide relative to each other along the first direction.

[0146] Thus, a fitted sliding structure is formed between the groove 251 and the second slider 250. When the second slider 250 slides along the track 260, the sliding claws 261 on both sides can be restricted from shifting along the depth or width direction of the groove 251, effectively preventing the second slider 250 from shaking during movement. This cooperative design of the track groove 252 and the sliding claws 261 greatly enhances the stability and guiding accuracy of the sliding cooperation, enabling the lifting platform assembly 2 to maintain stable movement even when subjected to large loads or rapid lifting, providing a reliable structural guarantee for the precise docking of the charging coil 21 in the wireless charging device 10.

[0147] In some embodiments of this disclosure, a rotatable ball (not shown) is provided in the groove 251, and the ball is located between the track member 260 and the inner wall of the groove 251. It should be noted that the ball may be located between the inner wall (such as the bottom wall) of the track groove 252 and the sliding claw 261.

[0148] Understandably, by using ball bearings, the sliding friction between the second slider 250 and the track component 260 can be transformed into rolling friction, thereby significantly reducing the frictional resistance during their relative movement and improving the smoothness of the lifting process of the lifting platform assembly 2. The ball bearings can form rolling support between the inner wall of the groove 251 and the track component 260, making the second slider 250 slide more flexibly and easily along the track component 260, effectively reducing the jamming phenomenon caused by excessive friction.

[0149] Meanwhile, the wear caused by rolling friction is less than that caused by sliding friction, which helps to extend the service life of the second slider 250 and the track component 260, and reduce the maintenance cost of the wireless charging device 10. In addition, the ball bearings can also absorb minor vibrations during the movement to a certain extent, further improving the smoothness of the movement of the lifting platform assembly 2, ensuring that the coil 21 can be positioned more accurately during docking, and improving the efficiency and reliability of wireless charging.

[0150] In the description of this specification, specific features, structures, materials or characteristics may be combined in any suitable manner in one or more embodiments or examples without contradicting each other.

[0151] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure, and are not intended to limit them. Although this disclosure has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this disclosure.

Claims

1. A wireless charging device, characterized in that, include: The housing (1) has an installation space (11) inside. The two ends of the housing (1) along the first direction are a first end (12) and a second end (13), respectively. The end face of the first end (12) has a connecting hole (14) that communicates with the installation space (11). A lifting platform assembly (2) is provided in the housing (1) in a lifting direction to switch between a first position and a second position. In the first position, the lifting platform assembly (2) is located in the installation space (11), and the end face of the lifting platform assembly (2) away from the second end (13) is flush with the end face of the first end (12) of the housing (1). In the second position, the lifting platform assembly (2) passes through the connecting hole (14), and the end face of the lifting platform assembly (2) away from the second end (13) protrudes from the end face of the first end (12). The lifting platform assembly (2) has a coil (21) and a magnet (22) and is suitable for magnetically charging electrical equipment.

2. The wireless charging device according to claim 1, characterized in that, The wireless charging device includes a mounting base (3) and a connecting block (4). The mounting base (3) is located in the mounting space (11) and fixed to the housing (1). The mounting base (3) has a first track (31) extending along the first direction. The connecting block (4) is movably disposed on the first track (31) along the first direction, and the connecting block (4) cooperates with the lifting platform assembly (2).

3. The wireless charging device according to claim 1, characterized in that, Also includes: A drive unit (5) is provided in the installation space (11) for driving the lifting platform assembly (2) to move from the first position to the second position along the first direction.

4. The wireless charging device according to claim 3, characterized in that, The lifting platform assembly (2) has a stop part (23), the driving member (5) is an elastic member, one end of the elastic member is fixed relative to the housing (1), and the other end of the elastic member is provided with a connecting block (4). The elastic member cooperates with the stop part (23) by means of the connecting block (4).

5. The wireless charging device according to claim 3, characterized in that, The lifting platform assembly (2) has a stop portion (23), and the wireless charging device includes a mounting base (3) and a connecting block (4). The mounting base (3) is disposed in the mounting space (11) and fixed to the housing (1). The mounting base (3) has a first track (31) extending along the first direction. The connecting block (4) is movably disposed on the first track (31) along the first direction. The connecting block (4) cooperates with the stop portion (23). The connecting block (4) has a second track (41), which is circular, and the axis of the second track (41) extends along a second direction; The wireless charging device further includes: a slide rod (6), which is rotatably disposed on the mounting base (3). The slide rod (6) has a sliding pin (61), which is movably disposed on the second track (41) along the circumferential extension trajectory of the second track (41). The first direction and the second direction are perpendicular.

6. The wireless charging device according to claim 5, characterized in that, The driving component (5) is an elastic component. One end of the elastic component is fixed relative to the mounting base (3), and the other end of the elastic component is connected to the connecting block (4). The elastic component cooperates with the stop part (23) through the connecting block (4).

7. The wireless charging device according to claim 6, characterized in that, The first direction is the up-down direction. The first end (12) is the upper end of the housing (1), and the second end (13) is the lower end of the housing (1). The inner and outer peripheral walls of the upper end of the second track (41) have upwardly protruding protrusions (42) and gentle slopes (43) extending along the third direction. The two sides of the second track (41) along the third direction are the first side and the second side, respectively. The gentle slope (43) is located on the side of the protrusion (42) facing the second side. In the first position, the sliding pin (61) is located on the gentle slope (43). The first direction, the second direction and the third direction are perpendicular to each other.

8. The wireless charging device according to claim 6, characterized in that, The inner and outer peripheral walls of the lower end of the second track (41) are both recessed with upward indentation (44). The two sides of the second track (41) along the third direction are the first side and the second side, respectively. The lowest point of the second track (41) is located on the side of the recess (44) facing the first side. In the second position, the sliding pin (61) is located at the lowest point of the second track (41). The first direction, the second direction and the third direction are perpendicular to each other.

9. The wireless charging device according to claim 2, characterized in that, The mounting base (3) has a third track (32) extending along the first direction, and the lifting platform assembly (2) has a sliding part (29) which is movably disposed on the third track (32) along the first direction.

10. The wireless charging device according to claim 1, characterized in that, The connecting hole (14) has a limiting groove (141) on its wall. The outer peripheral wall of the lifting platform assembly (2) is provided with an elastic cantilever buckle (26) that cooperates with the limiting groove (141). In the first position, the elastic cantilever buckle (26) is disengaged from the limiting groove (141). In the second position, the elastic cantilever buckle (26) is engaged with the limiting groove (141) and locked.

11. The wireless charging device according to claim 10, characterized in that, The outer peripheral wall of the lifting platform assembly (2) has an opening (27), and the inner wall of the opening (27) is provided with an elastic arm. The elastic arm is a cantilever beam structure, one end of which is fixedly connected to the inner wall of the opening, and the other end is a free end. The elastic cantilever is snapped onto the free end of the elastic arm. In the second position, part of the elastic arm is located on the side of the end face of the first end (12) away from the second end (13).

12. The wireless charging device according to claim 10, characterized in that, The wall of the connecting hole (14) includes a guide region (142), which is located on the side of the limiting groove (141) facing the second end (13). In the direction from the first end (12) to the second end (13), the guide region (142) is inclined in a direction away from the center of the connecting hole (14).

13. The wireless charging device according to claim 1, characterized in that, The housing (1) has a first fan cavity (15) spaced apart from the installation space (11). The housing (1) also has an air inlet (16) communicating with the first fan cavity (15). The end face of the first end (12) is provided with an air outlet (17) communicating with the first fan cavity (15). The wireless charging device further includes: The first fan (7) is located in the first fan cavity (15).

14. The wireless charging device according to claim 13, characterized in that, The first fan cavity (15) is located on the side of the installation space (11) near the second end (13). The housing (1) has an air supply channel (19) spaced apart from the installation space (11). The air supply channel (19) is located on the circumferential side of the first fan cavity (15) and extends along a first direction. One end of the air supply channel (19) is connected to the first fan cavity (15), and the other end has the air outlet (17).

15. The wireless charging device according to claim 1, characterized in that, The lifting platform assembly (2) includes: The outer casing (24) is provided at the communicating hole (14) in a height-reducible manner along the first direction; The base (25) is disposed in the outer shell (24), and the coil (21) and the magnet (22) are disposed on the base (25).

16. The wireless charging device according to claim 15, characterized in that, The lifting platform assembly (2) also includes: Heat sink (28), part of which is disposed inside the housing (24) and is thermally connected to the base (25). The end of the housing (24) facing the second end (13) is open to form an opening. The heat sink (28) passes through the opening and is partially disposed in the mounting space (11). The mounting space (11) has a vent (18) provided on the housing (1).

17. The wireless charging device according to claim 16, characterized in that, The heat sink (28) is a heat sink fin; And / or, the heat sink (28) includes: a heat-conducting base (281) and a second fan (282), the heat-conducting base (281) being thermally connected to the base (25), the heat-conducting base (281) having an air duct (283) which is disposed opposite to the vent (18), and the second fan (282) being disposed on the heat-conducting base (281).

18. The wireless charging device according to claim 1, characterized in that, There are multiple coils (21), and the multiple coils (21) are arranged along the direction from the inner circumference to the outer circumference of the coil (21).

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