A dual-mode single-motor one-to-two wireless charging device

Abstract

This invention relates to the field of wireless charging equipment technology and discloses a dual-mode single-motor one-to-two transmission wireless charging device, including an assembly plate, a lifting coil, and a sliding coil. The lifting coil is assembled on the assembly plate via a vertical lifting structure, and the sliding coil is assembled on the assembly plate via a horizontal sliding structure. The assembly plate is also equipped with a transmission module and a linkage gear assembly. The transmission module is equipped with only one drive motor, which is the only shared power input source for the horizontal sliding structure and the vertical lifting structure. The transmission module transmits the power generated by the drive motor, which drives the horizontal sliding structure to move the sliding coil horizontally back and forth in a direction parallel to the surface of the assembly plate. The linkage gear assembly of the horizontal sliding structure is coupled with the vertical lifting structure to synchronously transmit the power of the drive motor to the vertical lifting structure, which drives the lifting coil to move vertically up and down in a direction perpendicular to the surface of the assembly plate. The transmission module and the linkage gear assembly are located on the same side in the horizontal direction of the assembly plate.

Description

Technical Field

[0001] This invention relates to the field of wireless charging equipment technology, specifically to a dual-mode single-motor one-to-two transmission wireless charging device. Background Technology

[0002] Wireless charging technology, due to its ease of use, has been widely applied to charging scenarios for mobile phones and other electronic devices. Currently, devices supporting wireless charging mainly fall into two categories: one is magnetic charging devices with integrated magnetic rings, compatible with the MPP (Magnetic Power Profile) protocol, which achieve precise charging docking through magnetic attraction with the wireless charger's internal structure; the other is non-magnetic charging devices without magnetic rings, compatible with the EPP (Extended Power Profile) protocol. In this type, the wireless charger needs to move the charging coil through an internal mechanical structure to match and couple with the receiving coil of the device being charged. To be compatible with these two charging modes, existing wireless chargers require two corresponding charging structures and independent mechanical drive mechanisms internally. However, the addition of these structures and independent modules not only inevitably causes friction between the internal mechanical structures during charging mode switching but also leads to collisions of internal parts when the device is shaken, resulting in vibration and noise. Therefore, existing wireless chargers typically only have a single charging mode, reducing vibration and noise by simplifying the internal structure.

[0003] For in-vehicle applications where the device is permanently installed and cannot be frequently moved, wireless chargers need to be compatible with both magnetic and non-magnetic charging modes, and must be able to operate independently of each mode. Existing wireless chargers with built-in dual charging modes require moving different wireless coils to their corresponding positions during switching. This necessitates two sets of motion and drive structures. Using a single drive structure to power both motion structures also requires a linkage mechanism, increasing space requirements and making it unsuitable for small spaces, especially in compact cars where cup holders and storage compartments must also be considered. Therefore, a shorter overall length of the wireless charging device is needed to accommodate the switching mechanism, requiring a more compact charging switching device with a more robust motion and drive structure. Summary of the Invention

[0004] (I) Technical problem to be solved: In view of the shortcomings of the existing technology, the present invention provides a dual-mode single motor one-to-two transmission wireless charging device, which has the advantage of compact transmission structure and solves the problem of increased space requirements when a single motor drives multiple moving structures.

[0005] (II) Technical Solution: To achieve the above-mentioned compact transmission structure, the present invention provides the following technical solution: A dual-mode single-motor one-to-two transmission wireless charging device, including an assembly plate, wherein a lifting coil and a sliding coil are provided on the assembly plate, the lifting coil is assembled on the assembly plate through a vertical lifting structure, and the sliding coil is assembled on the assembly plate through a horizontal sliding structure. The assembly plate is also equipped with a transmission module and a linkage gear group. The transmission module is equipped with only one drive motor, which is the only common power input source for the horizontal sliding structure and the vertical lifting structure. The transmission module transmits the power generated by the drive motor, which drives the horizontal sliding structure to move the sliding coil horizontally back and forth in a direction parallel to the surface of the assembly plate. The horizontal sliding structure is coupled with the vertical lifting structure through the linkage gear group, which synchronously transmits the power of the drive motor to the vertical lifting structure, which drives the lifting coil to move vertically up and down in a direction perpendicular to the surface of the assembly plate, thereby realizing the dual action of synchronously driving the horizontal coil alignment and the vertical coil lifting and lowering with a single motor. At the same time, the transmission module and the linkage gear group are located on the same side in the horizontal direction of the assembly plate.

[0006] The vertical lifting structure includes a lifting support and a rotating movable frame. The lifting coil is mounted on the lifting support and is driven by the lifting support to complete the vertical lifting action. The rotating movable frame is arranged below the lifting support, and the overall outer contour of the lifting support and the rotating movable frame matches the shape of the lifting line. The bottom side of the rotating movable frame is provided with lifting transmission teeth, which mesh with the linkage gear group for transmission. The lifting transmission teeth are arranged circumferentially around the bottom side of the rotating movable frame, so that the rotating movable frame can generate a horizontal rotation action and convert the vertical displacement through rotation, synchronously driving the lifting support to complete the vertical lifting displacement.

[0007] Above the rotating movable frame is a lifting movable frame with a matching outer contour shape. The lifting movable frame is fixedly connected to the lifting support. The assembly plate is provided with a rotation limiting structure for restricting the circumferential rotation of the lifting support. The sides of the lifting movable frame and the rotating movable frame are respectively provided with the same number of corresponding lifting frame inclined sides and rotating frame inclined sides. The lifting frame inclined sides and rotating frame inclined sides are arranged in a circular array around the central axis of the corresponding frame along the edge. When the rotating frame rotates in the forward direction, it drives the inclined side of the rotating frame to rotate synchronously. The inclined surface of the inclined side of the rotating frame comes into contact with the inclined surface of the corresponding lifting frame and slides relative to each other, causing the inclined side of the lifting frame to rise along the inclined surface of the inclined side of the rotating frame, thereby driving the lifting frame and the lifting support to complete the vertical upward displacement. When the rotating frame rotates in the opposite direction, the inclined surface of the lifting frame slides down along the inclined surface of the rotating frame. Under the constraint of the rotation limit structure, the lifting frame and the lifting support only complete the vertical downward displacement.

[0008] The assembly plate has a mounting hole for mounting a rotating movable frame at the position corresponding to the lifting coil. The rotating movable frame is rotatably mounted in the mounting hole. A limit ring is provided between the rotating movable frame and the lifting movable frame. The limit ring is used to limit the axial movement of the rotating movable frame in the vertical direction.

[0009] The mounting hole of the assembly plate is provided with an inwardly protruding limiting buckle on the inner side wall. The position where the limiting ring contacts the inner wall of the mounting hole is provided with a limiting notch that corresponds to and matches the limiting buckle. When the limiting ring is aligned with the corresponding position of the mounting hole and pressed down for assembly, the limiting buckle engages in the corresponding limiting notch, thus completing the limiting and fixing of the limiting ring.

[0010] The upper surface of the assembly plate is provided with a charging alignment area for supporting the wireless device to be charged. Parallel sliding rods are arranged on both sides of the assembly plate. The lateral sliding structure includes a sliding rod and a sliding bracket. A sliding coil is fixedly mounted on the sliding bracket. Lateral sliding grooves corresponding to the sliding rods are opened on both sides of the sliding bracket. The sliding rods pass through the interior of the corresponding lateral sliding grooves, so that the sliding bracket can drive the sliding coil to complete the lateral reciprocating movement along the axial direction of the sliding rod.

[0011] The transmission module also includes a gear set and a worm gear. The gear set consists of two upper gears and a lower worm gear arranged coaxially along the vertical axis. The transmission module is mounted on the mounting plate and located in the inner area of ​​the sliding bracket.

[0012] The linkage gear assembly consists of linkage column teeth and linkage disc teeth. The linkage gear assembly is rotatably mounted on the mounting plate. The linkage column teeth are columnar in shape and consist of two vertically coaxial gears. The lower gear meshes with the linkage column teeth. The tooth width of the linkage disc teeth is the same as that of the lifting transmission teeth, and it maintains constant meshing with the linkage column teeth and the lifting transmission teeth.

[0013] The inner side of the sliding bracket is provided with a straight tooth section parallel to the axis of the sliding rod. The gear set is rotatably mounted on the mounting plate through a through hole opened in the axis and a transition shaft. The gear set and the drive motor are both fixedly mounted on the transmission bracket, and the transmission bracket is fixedly connected to the mounting plate.

[0014] The spur gear section is driven by a gear set meshing with the worm gear. The worm gear is coaxially mounted on the output shaft of the drive motor. The upper gear meshes with the spur gear section, and the lower worm gear meshes with the worm gear.

[0015] The spur gear segment has two sections, which are respectively set on both sides of the sliding bracket. One spur gear segment is constantly meshed with the upper gear in the gear set, and the other is constantly meshed with the upper part of the linkage column tooth in the linkage gear set. When the gear set rotates, it drives the spur gear segment to move the sliding bracket horizontally. The horizontal displacement of the spur gear segment on the other side causes the meshing linkage column tooth to rotate. The rotation is transmitted to the lifting transmission tooth through the linkage disc tooth, so that the rotating movable frame rotates and synchronously drives the lifting bracket to complete the vertical displacement.

[0016] While the gear set meshes with the worm gear for transmission, it maintains constant meshing with the linkage column teeth in the linkage gear set. This allows the gear set to directly drive the spur tooth section to move the sliding bracket horizontally, while simultaneously driving the linkage column teeth to rotate the linkage disc teeth and transmit the transmission to the lifting transmission teeth. This causes the rotating movable frame to rotate, synchronously driving the lifting bracket to complete the vertical displacement.

[0017] The spur gear segment is driven by meshing with the linkage column teeth in the linkage gear set. The worm gear is coaxially mounted on the output shaft of the drive motor, and the lower worm gear in the gear set meshes with the worm gear for transmission. A set of transmission gears is provided between the upper gear and the lifting transmission gear, so that when the gear set rotates, the lifting transmission gear rotates synchronously, realizing the rotation of the rotating movable frame and driving the vertical movement of the lifting bracket. At the same time, the lifting transmission gear and the linkage disc teeth in the linkage gear set maintain constant meshing, so that when the rotating movable frame rotates, the linkage disc teeth drive the linkage column teeth to rotate, and the spur gear segment meshing with the linkage column teeth drives the sliding bracket to perform horizontal displacement.

[0018] The assembly plate is externally fixedly fitted with an upper shell and a lower shell, which are fastened together to form an integrated protective shell.

[0019] (III) Beneficial Effects: Compared with the prior art, the present invention provides a dual-mode single-motor one-to-two transmission wireless charging device, which has the following beneficial effects: 1. The dual-mode single-motor one-to-two transmission wireless charging device, by centrally arranging the transmission module and the linkage gear group on the same side of the sliding bracket away from the lateral movement of the lifting coil in the lateral direction of the assembly plate, this same-side centralized layout structure, which is completely different from the conventional distributed layout, greatly reduces the lateral occupation area of ​​the transmission structure on the assembly plate, further compresses the overall lateral size of the device, makes the whole structure more compact, and can adapt to more narrow installation scenarios with limited width. At the same time, the core transmission components are concentrated in the same area, which not only facilitates integrated dust protection design, but also greatly reduces the difficulty of assembly and debugging, improves the assembly efficiency of mass production, and avoids the interference of the dispersed arrangement of the transmission structure on the lateral displacement of the sliding bracket throughout the entire stroke, and can adapt to the lateral alignment requirements of a larger stroke. By employing a single drive motor as the sole shared power input source for both the lateral sliding structure and the vertical lifting structure, the design fundamentally solves the inherent pain points of traditional dual-motor drive schemes, such as the synchronization error and timing misalignment of the lateral coil alignment and the vertical coil lifting action. It completely avoids the complex control logic and additional hardware cost required for dual-motor collaborative control. The two core actions can be driven synchronously by simply adjusting the forward and reverse rotation and speed of a single drive motor, significantly reducing the space occupied by the power module and the overall material cost of the device. At the same time, in conjunction with the self-locking characteristics of the worm gear transmission structure, reliable position locking of the lateral sliding structure and the vertical lifting structure can be achieved simultaneously when the drive motor stops. This avoids displacement deviation of the sliding coil under inertia and completely eliminates the risk of the lifting coil falling under its own and the gravity of the auxiliary structure, greatly improving the device's position holding accuracy, operational stability, and safety.The design employs two symmetrically arranged straight tooth segments, separating the transmission functions of lateral sliding drive and vertical lifting linkage into two independent segments. One segment meshes with the gear set to drive the lateral displacement of the sliding bracket, while the other segment meshes with the linkage pinion to power the vertical lifting structure. Unlike a single straight tooth segment design, this eliminates the need for a sufficiently long meshing length to simultaneously meet the dual meshing requirements of lateral full-stroke drive and vertical full-stroke linkage. This significantly reduces the design length of a single straight tooth segment, effectively reducing the lateral extension dimension of the sliding bracket and ultimately significantly reducing the lateral width requirement of the entire device. This makes the overall structure more compact and adaptable to more confined installation scenarios. Furthermore, the two straight tooth segments with identical tooth profile parameters and opposite tooth surfaces are symmetrically distributed on both sides of the sliding bracket, ensuring smooth lateral movement of the sliding bracket. The force on both sides is completely symmetrical during the repositioning process, which completely avoids the problems of sliding bracket skew and jamming caused by the force on one side of a single straight tooth segment. It greatly reduces the uneven wear between the transverse slide and the slide rod, and improves the smoothness of the transverse sliding action, the alignment accuracy and the service life of the overall structure. In addition, the hard linkage transmission design of the double straight tooth segment realizes the absolute synchronization of the transverse alignment action and the vertical lifting action from the mechanical structure level. It eliminates the problem of lag and stroke misalignment of the vertical lifting action caused by the accumulation of meshing gap when using a single straight tooth segment transmission. It greatly improves the synchronization accuracy and response speed of the two actions. It can realize that while the sliding coil moves laterally to the alignment position directly below the receiving coil of the device to be charged, the lifting coil rises to the preset optimal charging coupling height at the same time. It greatly shortens the charging preparation time and improves the alignment accuracy and energy coupling efficiency of wireless charging. 2. This dual-mode single-motor one-to-two transmission wireless charging device, through a rotating movable frame and a rotating lifting structure with corresponding oblique sides of the circumferential array, can uniformly convert horizontal rotational power into circumferentially distributed vertical lift. Combined with the full-process guiding constraint of the rotating limit structure on the assembly plate, it ensures that the lifting coil maintains a displacement direction perpendicular to the assembly plate surface throughout the entire lifting stroke, avoiding swaying and misalignment during lifting and ensuring the parallelism of the coil coupling surface after lifting, further improving charging coupling efficiency. The quick-installation fixing structure using limit rings and limit buckles eliminates the need for additional fasteners to complete the axial limiting and fixing of the rotating movable frame, significantly improving the production assembly efficiency and subsequent maintenance convenience of the device. It also does not increase the axial thickness of the device, further ensuring structural compactness. In addition, the integrated upper and lower protective shells that snap onto the outside of the assembly plate provide comprehensive protection for all internal transmission structures and coil components, preventing structural wear and short circuits caused by dust and moisture intrusion, further extending the overall service life of the device.

[0020] 3. This dual-mode single-motor one-to-two transmission wireless charging device utilizes a coaxially integrated wide-tooth cylindrical gear structure. The upper gear maintains constant meshing with the spur gear segment and the linkage gear group on the inner side of the sliding bracket. This allows the power output from the drive motor to be directly diverted from the transmission source to both the lateral sliding structure and the vertical lifting structure, completely eliminating the linkage dependency between lateral and vertical movements. The start, stop, and running speed of the two movements are completely synchronized, with no transmission lag or stroke error issues. Simultaneously, a single spur gear segment parallel to the axis of the sliding rod completes the lateral sliding drive. This significantly simplifies the structural design of the sliding bracket, reduces the difficulty of parts forming and assembly debugging, and reduces the overall lateral dimension requirements of the device. The linkage gear set is directly driven by the gear set rather than relying on the displacement transmission of the sliding bracket, which greatly shortens the vertical power transmission path, improves transmission efficiency, and avoids vertical stroke control errors caused by lateral displacement deviation and meshing clearance. The lateral and vertical motion power are from the same source and driven independently. The abnormal operation of a single action will not affect the normal execution of another action. The overall machine operation stability, motion synchronization accuracy and response speed are significantly improved.

[0021] 4. This dual-mode single-motor one-to-two wireless charging device uses a transmission gear assembly consisting of multi-stage meshing cylindrical gears added between the upper gear and the lifting transmission gear. By flexibly adjusting the transmission ratio of the transmission gear assembly, the operating speed and stroke range of the vertical lifting action can be independently adjusted. Without modifying the relevant parameters of the lateral sliding structure, the stroke ratio of vertical lifting and lateral alignment can be flexibly matched, which greatly improves the parameter adaptability of the device and reduces the product modification cost for different usage scenarios. At the same time, each stage of the transmission gear assembly is independently assembled through a corresponding rotating support shaft, and the meshing transmission path can be flexibly adjusted according to the internal space of the device, further optimizing the internal space utilization of the device. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the housing fastening mechanism of the present invention; Figure 2 This is a schematic diagram of the assembly structure of the assembly plate of the present invention; Figure 3 This is a schematic diagram of the vertical limiting structure of the lifting bracket of the present invention; Figure 4 This is a schematic diagram of the movement of the lifting frame of the present invention; Figure 5 This is an assembly diagram of Embodiment 1 of the present invention; Figure 6 This is a schematic diagram of the transmission structure according to Embodiment 1 of the present invention; Figure 7 This is a schematic diagram of the arrangement of a single tooth segment according to an embodiment of the present invention; Figure 8This is a schematic diagram of the transmission structure in Embodiment 2 of the present invention; Figure 9 This is a schematic diagram of the transmission structure in Embodiment 3 of the present invention; Figure 10 This is a schematic diagram of the assembly position relationship in Embodiment 3 of the present invention; Figure 11 This is a schematic diagram of the rotating movable frame structure of the present invention; Figure 12 This is a schematic diagram of the limiting ring structure of the present invention.

[0023] In the diagram: 1. Assembly plate; 11. Sliding rod; 12. Upper housing; 13. Lower housing; 2. Lifting coil; 21. Lifting bracket; 22. Linkage gear assembly; 23. Lifting movable frame; 24. Rotating movable frame; 25. Limiting retaining ring; 211. Lifting transmission gear; 221. Linkage column gear; 222. Linkage disc gear; 231. Lifting frame inclined side; 241. Rotating frame inclined side; 3. Sliding coil; 31. Sliding bracket; 311. Transverse groove; 312. Straight tooth section; 4. Transmission module; 41. Gear set; 42. Worm gear; 43. Drive motor; 44. Transmission bracket; 411. Upper gear; 412. Lower worm gear; 413. Transition shaft; Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] Example 1 Please see Figures 1-7A dual-mode single-motor, one-to-two wireless charging device includes an assembly plate 1. The assembly plate 1 has a lifting coil 2 and a sliding coil 3. The assembly plate 1 is a flat rectangular plate structure, serving as the mounting reference carrier for the entire wireless charging device. All functional structures are positioned and assembled based on the surface of the assembly plate 1. Both the lifting coil 2 and the sliding coil 3 are flat, disc-shaped wireless charging transmitting coils wound with Litz wire. The coils are covered with an insulating protective shell to prevent short circuits or electromagnetic interference leakage during operation. The lifting coil 2 is mounted to the assembly plate 1 via a vertical lifting structure, ensuring that its lifting displacement is always perpendicular to the surface of the assembly plate. The sliding coil 3 is mounted to the assembly plate 1 via a horizontal sliding structure, ensuring that its horizontal reciprocating displacement is always parallel to the surface of the assembly plate 1. The assembly plate 1 also has a transmission module 4 and a linkage gear assembly 22 mounted on it via a rotating support shaft. On the pre-reserved mounting position on plate 2, ensure that the rotation axis of the linkage gear group 22 is perpendicular to the surface of the mounting plate 1 to ensure the stability of meshing during transmission and prevent tooth disengagement or transmission jamming. The transmission module 4 is equipped with only one drive motor 43, which is the only shared power input source for the lateral sliding structure and the vertical lifting structure. The transmission module 4 transmits the power generated by the drive motor 43 to drive the lateral sliding structure to move the sliding coil 3 laterally back and forth in a direction parallel to the surface of the mounting plate 1. The lateral sliding structure is coupled to the vertical lifting structure through the linkage gear group 22, synchronously transmitting the power of the drive motor 43 to the vertical lifting structure, causing the lifting coil 2 to move vertically up and down in a direction perpendicular to the surface of the mounting plate 1. This achieves the simultaneous driving of the lateral coil alignment and the vertical coil lifting action by a single motor. At the same time, the transmission module 4 and the linkage gear group 22 are located on the same side in the lateral direction of the mounting plate 1, i.e., the direction of movement of the lateral sliding structure. (See reference...) Figure 5 The longer side of the mounting plate 1 is the direction of movement of the lateral sliding structure. By setting the transmission module 4 and the linkage gear group 22 on the same side in the lateral direction, the length of the side without the transmission module 4 and linkage gear group 22 can be shortened, greatly reducing the overall space occupied and making it easier to adapt to the installation space length requirements of different vehicles.

[0026] See Figures 2-4The vertical lifting structure includes a lifting bracket 21 and a rotating movable frame 24. The lifting coil 2 is mounted on the lifting bracket 21. The lifting bracket 21 is an annular frame structure that matches the shape of the lifting coil 2. The lifting coil 2 is assembled in the top mounting groove of the lifting bracket 21 by snap-fit ​​or heat-fusion fixing, and the vertical lifting action is completed by the lifting bracket 21. The rotating movable frame 24 is arranged below the lifting bracket 21, and the overall outer contour of the lifting bracket 21 and the rotating movable frame 24 matches the shape of the lifting coil 2. The central axis of the rotating movable frame 24 is completely coincident with that of the lifting bracket 21. The bottom end face of the rotating movable frame 24 is fitted into the support step in the mounting hole of the mounting plate 1. The support step provides a vertical lower limit for the rotating movable frame 24. The bottom side of the rotating movable frame 24 is provided with a lifting transmission gear 211. The lifting transmission gear 211 meshes with the linkage gear group 22 for transmission. The lifting transmission gear 211 is integrally formed on the bottom outer side of the rotating movable frame 24 and is arranged around the bottom side of the rotating movable frame 24 in a circumferential manner to form an outer gear ring structure. The tooth shape adopts an involute cylindrical tooth shape to ensure the smoothness of the transmission when meshing with the linkage gear group 22, reduce transmission noise and transmission loss. At the same time, the circumferential tooth shape design can ensure that the rotating movable frame always maintains a stable meshing state with the linkage gear group during the full stroke of forward and reverse rotation, and there will be no transmission interruption. The rotating movable frame 24 can generate a horizontal rotation action and convert vertical displacement through rotation, synchronously driving the lifting bracket 21 to complete the vertical lifting displacement.

[0027] Above the rotating movable frame 24, a lifting movable frame 23 with a matching outer contour shape is provided. The lifting movable frame 23 is an annular rotating body structure that perfectly matches the outer contour shape of the rotating movable frame 24. The lifting movable frame 23 is fixedly connected to the lifting support 21 to ensure the connection strength between the lifting movable frame 23 and the lifting support 21, ensuring that there will be no relative displacement between the two during the lifting process and that the lifting action can be completed synchronously. The assembly plate 1 is provided with a rotation limiting structure for restricting the circumferential rotation of the lifting support 21. The inner wall of the assembly plate 1 is integrally formed with a vertical guide groove that matches the shape of the lifting support 21. The two sides of the lifting support 21 are respectively clamped to... The vertical guide groove provides full-range guidance and limit for the lifting and lowering movement of the lifting bracket, avoiding the problem of swaying and misalignment during the lifting and lowering process. The side of the lifting movable frame 23 and the side of the rotating movable frame 24 are respectively provided with the same number of corresponding lifting frame inclined sides 231 and rotating frame inclined sides 241. The lifting frame inclined sides 231 and rotating frame inclined sides 241 are arranged in a circular array around the central axis of the corresponding frame body along the edge, and at least three sets are provided for each set. The inclined angle of each set of lifting frame inclined sides 231 and rotating frame inclined sides 241 is exactly the same. The surface of the inclined surface is treated with smooth wear resistance to ensure the smoothness of sliding between the inclined surfaces and reduce sliding friction resistance and wear. When the rotating movable frame 24 rotates in the forward direction, it drives the inclined side 241 of the rotating frame to rotate synchronously. The inclined surface of the inclined side 241 of the rotating frame comes into contact with the inclined surface of the corresponding lifting frame inclined side 231 and slides relative to each other, causing the inclined side 231 of the lifting frame to rise along the inclined surface of the inclined side 241 of the rotating frame. The high end of the inclined side 241 of the rotating frame gradually moves to the low end of the inclined side 231 of the lifting frame, thereby driving the lifting movable frame 23 and the lifting support 21 to complete the vertical upward displacement. When the rotating movable frame 24 rotates in the opposite direction, the inclined surface of the lifting frame inclined side 231 slides down along the inclined surface of the rotating frame inclined side 241. The high end of the rotating frame inclined side 241 gradually moves away from the low end of the lifting frame inclined side 231. Under the action of its own weight and the weight of the lifting coil 2 and the lifting support 21, the lifting frame inclined side 231 slides down along the inclined surface of the rotating frame inclined side 241. At the same time, under the constraint of the rotation limit structure, the lifting movable frame 23 and the lifting support 21 will not rotate circumferentially, but can only complete the vertical downward displacement, so as to realize the descent and reset of the lifting coil 2.

[0028] See Figure 4 and Figures 11-12 The assembly plate 1 has a mounting hole for mounting the rotating movable frame 24 at the position corresponding to the lifting coil 2. The rotating movable frame 24 is rotatably mounted in the mounting hole. A limiting ring 25 is provided between the rotating movable frame 24 and the lifting movable frame 23. The limiting ring 25 is used to axially limit the rotating movable frame 24 in the vertical direction. The inner wall of the mounting hole of the assembly plate 1 is provided with an inwardly protruding limiting buckle. The position where the limiting ring 25 contacts the inner wall of the mounting hole has a limiting notch that matches the limiting buckle. When the limiting ring 25 is aligned with the corresponding position of the mounting hole and pressed down for assembly, the limiting buckle engages in the corresponding limiting notch, thus completing the limiting and fixing of the limiting ring 25.

[0029] The upper surface of the assembly plate 1 is provided with a charging alignment area for supporting the wireless device to be charged. Parallel sliding rods 11 are arranged on both sides of the assembly plate 1. The transverse sliding structure includes sliding rods 11 and sliding brackets 31. The two ends of the sliding rods 11 are vertically locked and fixed to the surface of the assembly plate 1 by fixed supports. The fixed supports are respectively arranged at both ends of the assembly plate 1 along the axial direction of the sliding rods 11. The central axes of the two sliding rods are in the same horizontal plane and are completely parallel to each other to ensure the sliding displacement accuracy of the sliding brackets 31. The sliding coil 3 is fixedly assembled to the sliding brackets 31. The two sides of the sliding brackets 31 are provided with transverse sliding grooves 311 that are adapted to the sliding rods 11. The transverse sliding grooves 311 are through-hole structures. The inner diameter of the through hole is clearance-fitted with the outer circular surface of the sliding rod 11. The fitting accuracy meets the sliding requirements. The inner wall of the through hole is smoothed to reduce the frictional resistance during the sliding process. The sliding rods 11 pass through the interior of the corresponding transverse sliding grooves 311, so that the sliding brackets 31 can drive the sliding coil 3 to complete the transverse reciprocating movement along the axial direction of the sliding rods 11.

[0030] The transmission module 4 further includes a gear set 41 and a worm gear 42. The gear set 41 is integrally formed by two upper gears 411 and a lower worm gear 412 arranged coaxially along the vertical axis. The transmission module 4 is mounted on the mounting plate 1 and located in the inner area of ​​the sliding bracket 31. The linkage gear set 22 is composed of linkage column teeth 221 and linkage disc teeth 222. The linkage gear set 22 is rotatably mounted on the mounting plate 1. The linkage column teeth 221 are generally columnar and are composed of two vertically coaxial gears, with the lower part... The gear meshes with the linkage column gear 221. The tooth width of the linkage disc gear 222 is the same as that of the lifting transmission gear 211, and it maintains constant meshing with the linkage column gear 221 and the lifting transmission gear 211. The linkage disc gear 222 also maintains constant meshing with the lower column gear of the linkage column gear 221 and the lifting transmission gear 211 of the rotating movable frame 24, ensuring that the power can be stably transmitted from the linkage column gear to the linkage disc gear, and then stably transmitted to the lifting transmission gear 211 through the linkage disc gear 222, without any interruption of meshing.

[0031] The inner side of the sliding bracket 31 is provided with a straight tooth section 312 parallel to the axial direction of the slide rod 11. The gear set 41 is rotatably mounted on the mounting plate 1 through an axially opened through hole and a transition shaft 413. The gear set 41 and the drive motor 43 are both fixedly mounted on the transmission bracket 44. The transmission bracket 44 is fixedly connected to the mounting plate 1. The straight tooth section 312 is driven by the gear set 41 meshing with the worm gear 42. The worm gear 42 is coaxially mounted on the output shaft of the drive motor 43. The upper gear 411 is driven by the straight tooth section 312, and the lower worm gear 412 is driven by the worm gear 42.

[0032] See Figures 5-7 Two straight tooth segments 312 are integrally formed on the inner support plates on both sides of the sliding bracket 31. One straight tooth segment 312 maintains constant meshing with the upper gear 411 in the gear set 41, and the other maintains constant meshing with the upper part of the linkage column tooth 221 in the linkage gear set 22. During the full-stroke lateral reciprocating motion of the sliding bracket 31, the two straight tooth segments 312 always maintain a stable meshing state with the corresponding gears, without any tooth disengagement or transmission interruption. The tooth profile parameters of the two straight tooth segments 312 are exactly the same and are parallel to the axial direction of the slide rod 11. The tooth surfaces of the two straight tooth segments 312 are arranged opposite each other to ensure that the force direction is symmetrical when meshing with the corresponding gears, avoiding the situation of unilateral force bias in the sliding bracket 31. When the drive motor 43 drives the worm gear 42 to rotate, driving the gear set 41 to rotate, the upper gear 411 of the gear set 41 meshes with the corresponding straight tooth segment 312 for transmission. The drive spur section 312 drives the sliding bracket 31 to complete the horizontal displacement along the axis of the slide rod 11. At the same time as the sliding bracket 31 moves horizontally, the spur section 312 on the other side simultaneously generates a horizontal displacement. Through tooth meshing, it drives the upper spur gear of the linkage spur gear 221 that meshes with it to rotate. The linkage spur gear 221 rotates synchronously, driving the linkage disc gear 222 that meshes with its lower spur gear to rotate synchronously. Through the rotation of the linkage disc gear 222, it transmits the transmission to the lifting transmission gear 211, causing the rotating movable frame 24 to rotate. This synchronously drives the lifting bracket 21 to complete the vertical displacement. The rotation of the rotating movable frame 24 synchronously drives the lifting bracket 21 to complete the vertical lifting displacement through the inclined plane transmission. This realizes that a single drive motor synchronously drives the horizontal alignment action of the sliding coil 3 and the vertical lifting action of the lifting coil 2. The synchronous drive of the two actions can be achieved without an additional clutch mechanism. The structure is simple and reliable, the transmission path is short, and the transmission efficiency is high.

[0033] The assembly plate 1 is externally fixedly equipped with an upper shell 12 and a lower shell 13, which are fastened together to form an integrated protective shell.

[0034] Example 2 In this embodiment, the structure, material, and assembly connection method of the assembly plate 1, lifting coil 2, sliding coil 3, vertical lifting structure, horizontal sliding structure, rotation limiting structure, and limiting ring are completely consistent with the corresponding structures in the aforementioned specific embodiments. They will not be repeated here. Only the transmission meshing relationship between the transmission module 4 and the linkage gear group 22 and the setting form of the straight tooth section are specifically adjusted.

[0035] See Figure 8The gear set 41 of the transmission module 4 is still composed of an upper gear 411 and a lower worm gear 412 integrally formed along the vertical coaxial axis. The gear set 41 is rotatably mounted on the transition shaft 413 through a through hole opened in the axial direction. While the gear set 41 meshes with the worm gear 42 for transmission, it maintains constant meshing with the linkage spur teeth 221 in the linkage gear set 22. The upper gear 411 of the gear set 41 adopts a wide tooth surface cylindrical gear structure, and the tooth width covers both the straight tooth section 312 inside the sliding bracket 31 and the linkage gear set. The meshing area of ​​the linkage spur tooth 221 of gear 22 allows the gear set 41 to mesh with the worm gear 42 while the upper gear 411 maintains constant meshing with the spur tooth section 312 and the linkage spur tooth 221. The linkage spur tooth 221 is a coaxially integral cylindrical gear, rotatably mounted on the reserved mounting position of the mounting plate 1 via a rotating support shaft. The linkage spur tooth 221 maintains constant meshing with the upper gear 411 and the linkage disc tooth 222 of the gear set 41. The tooth width of the linkage disc tooth 222 is similar to that of the helical gear. The tooth width of the lifting transmission gear 211 at the bottom of the rotating frame 24 is completely consistent, and the linkage disc gear 222 and the lifting transmission gear 211 always maintain stable meshing. When the drive motor 43 starts to output power, the worm gear 42 drives the gear set to rotate synchronously. The upper gear 411 of the gear set 41 directly drives the straight tooth section 312 to move the sliding bracket 31 horizontally back and forth along the axis of the slide rod 11 through meshing transmission, realizing the horizontal alignment action of the sliding coil 3. The upper gear 411 of the gear set 41 directly drives the linkage column gear 221 to rotate synchronously through meshing transmission, thereby driving the linkage disc gear 222 to rotate synchronously. The linkage disc gear 222 transmits the rotational power to the lifting transmission gear 211, driving the rotating frame 24 to rotate synchronously. The rotating frame 24 drives the lifting bracket 21 to complete the vertical lifting displacement through the inclined plane transmission, realizing the dual action of horizontal coil alignment and vertical coil lifting driven synchronously by a single drive motor.

[0036] Example 3 In this embodiment, the structure, material, and assembly connection method of the assembly plate 1, lifting coil 2, sliding coil 3, vertical lifting structure, horizontal sliding structure, rotation limiting structure, limiting ring, sliding rod 11, and sliding bracket 31 are completely consistent with the corresponding structures in the aforementioned specific embodiments. They will not be repeated here. Only the transmission path of the transmission module 4, the meshing relationship of the gear set 41, and the transmission logic of the linkage gear set 22 are specifically adjusted.

[0037] See Figures 9-10The gear set 41 of the transmission module 4 is still composed of an upper gear 411 and a lower worm gear 412 integrally formed along the vertical coaxial axis. The gear set 41 is rotatably mounted on the transition shaft 413 through an axially opened through hole. The spur tooth section 312 is driven by meshing with the linkage spur tooth 221 in the linkage gear set 22. The worm gear 42 is coaxially mounted on the output shaft of the drive motor 43, and the lower worm gear 412 in the gear set 41 meshes with the worm gear 42 for transmission. A set of transmission gears is provided between the upper gear 411 and the lifting transmission gear 211. The transmission gear set includes meshing transmission cylindrical gears. Each stage of transmission gears... All components are rotatably mounted on the pre-reserved mounting positions on the mounting plate via corresponding rotating support shafts. The input gear of the transmission gear set maintains constant meshing with the upper gear 411 of the gear set 41, and the output gear of the transmission gear set maintains constant meshing with the lifting transmission gear 211. This ensures that when the gear set 41 rotates, the lifting transmission gear 211 rotates synchronously, realizing the rotation of the rotating movable frame 24 and driving the vertical movement of the lifting bracket 21. Simultaneously, the lifting transmission gear 211 at the bottom of the rotating movable frame 24 maintains constant meshing with the linkage disc gear 222 in the linkage gear set 22, and the linkage disc gear 222 maintains constant meshing with the linkage column gear 221. The linkage pinion 221 is rotatably mounted on the reserved mounting position of the mounting plate via a rotating support shaft, and the linkage pinion 221 maintains constant meshing with the straight tooth section 312 on the inner side of the sliding bracket 31. The straight tooth section 312 is integrally formed on the inner side of the sliding bracket parallel to the axial direction of the slide rod 11. When the drive motor 43 starts and outputs power, the worm gear 42 drives the gear set 41 to rotate synchronously. The gear set 41 transmits the rotational power to the lifting transmission gear 211 through the transmission gear set, driving the rotating movable frame 24 to rotate synchronously. On the one hand, the inclined plane transmission drives the lifting bracket 21 to complete the vertical lifting displacement, realizing the lifting coil 2. The vertical lifting action; on the other hand, the rotating lifting transmission gear 211 synchronously drives the linkage disc gear 222 that meshes with it to rotate. The linkage disc gear 222 drives the linkage column gear 221 to rotate synchronously. The linkage column gear 221 converts the rotational power into linear power through the meshing transmission with the straight tooth section 312, which drives the straight tooth section 312 and the sliding bracket 31 to complete the horizontal lateral reciprocating motion along the axis of the slide rod 11, realizing the lateral alignment action of the sliding coil. At the same time, the transmission module 4 and the linkage gear group 22 are located on the same side in the lateral direction of the assembly plate, that is, on the side of the sliding bracket 31 away from the lateral movement of the lifting coil 2.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0039] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A dual-mode single-motor one-to-two transmission wireless charging device, comprising an assembly plate (1), wherein a lifting coil (2) and a sliding coil (3) are provided on the assembly plate (1), the lifting coil (2) is assembled to the assembly plate (1) via a vertical lifting structure, and the sliding coil (3) is assembled to the assembly plate (1) via a horizontal sliding structure, characterized in that: The assembly plate (1) is also equipped with a transmission module (4) and a linkage gear group (22). The transmission module (4) is equipped with only one drive motor (43), which is the only common power input source for the horizontal sliding structure and the vertical lifting structure. The transmission module (4) transmits the power generated by the drive motor (43) to drive the horizontal sliding structure to move the sliding coil (3) horizontally back and forth in a direction parallel to the surface of the assembly plate (1). The horizontal sliding structure is coupled with the vertical lifting structure through the linkage gear group (22) to transmit the power of the drive motor (43) to the vertical lifting structure synchronously, which drives the lifting coil (2) to move vertically in a direction perpendicular to the surface of the assembly plate (1). This realizes the synchronous driving of the horizontal coil alignment and the vertical coil lifting action by a single motor. At the same time, the transmission module (4) and the linkage gear group (22) are located on the same side of the assembly plate (1) in the direction of the horizontal sliding structure movement.

2. The dual-mode single-motor one-to-two transmission wireless charging device according to claim 1, characterized in that: The vertical lifting structure includes a lifting bracket (21) and a rotating movable frame (24). The lifting coil (2) is set on the lifting bracket (21) and is driven by the lifting bracket (21) to complete the vertical lifting action. The rotating movable frame (24) is arranged below the lifting bracket (21), and the overall outer contour of the lifting bracket (21) and the rotating movable frame (24) matches the shape of the lifting coil (2). The bottom side of the rotating movable frame (24) is provided with lifting transmission teeth (211). The lifting transmission teeth (211) mesh with the linkage teeth group (22) for transmission, and the lifting transmission teeth (211) are arranged circumferentially around the bottom side of the rotating movable frame (24), so that the rotating movable frame (24) can generate a horizontal rotation action and convert the vertical displacement through rotation, and synchronously drive the lifting bracket (21) to complete the vertical lifting displacement.

3. The dual-mode single-motor one-to-two transmission wireless charging device according to claim 2, characterized in that: Above the rotating movable frame (24) is a lifting movable frame (23) with a matching outer contour shape. The lifting movable frame (23) is fixedly connected to the lifting support (21). The assembly plate (1) is provided with a rotation limiting structure for restricting the circumferential rotation of the lifting support (21). The side of the lifting movable frame (23) and the side of the rotating movable frame (24) are respectively provided with the same number of corresponding and matching lifting frame inclined sides (231) and rotating frame inclined sides (241). The lifting frame inclined sides (231) and rotating frame inclined sides (241) are arranged in a circular array around the central axis of the corresponding frame along the edge. When the rotating movable frame (24) rotates in the forward direction, it drives the inclined side (241) of the rotating frame to rotate synchronously. The inclined surface of the inclined side (241) of the rotating frame and the inclined surface of the corresponding lifting frame (231) come into contact and slide relative to each other, so that the inclined side (231) of the lifting frame climbs upward along the inclined surface of the inclined side (241) of the rotating frame, thereby driving the lifting movable frame (23) and the lifting support (21) to complete the vertical upward displacement. When the rotating movable frame (24) rotates in the opposite direction, the inclined surface of the lifting frame (231) slides down along the inclined surface of the rotating frame (241). Under the constraint of the rotation limit structure, the lifting movable frame (23) and the lifting support (21) only complete the vertical downward displacement.

4. The dual-mode single-motor one-to-two transmission wireless charging device according to claim 3, characterized in that: The mounting plate (1) has a mounting hole for mounting the rotating movable frame (24) at the position corresponding to the lifting coil (2). The rotating movable frame (24) is rotatably mounted in the mounting hole. A limit ring (25) is provided between the rotating movable frame (24) and the lifting movable frame (23). The limit ring (25) is used to axially limit the rotating movable frame (24) in the vertical direction.

5. A dual-mode single-motor one-to-two transmission wireless charging device according to claim 4, characterized in that: The mounting hole of the assembly plate (1) is provided with an inwardly protruding limiting buckle. The limiting ring (25) is provided with a limiting notch that corresponds to and matches the limiting buckle at the position where it contacts the inner wall of the mounting hole. When the limiting ring (25) is aligned with the corresponding position of the mounting hole and pressed down for assembly, the limiting buckle is engaged in the corresponding limiting notch, thus completing the limiting and fixing of the limiting ring (25).

6. A dual-mode single-motor one-to-two transmission wireless charging device according to claim 5, characterized in that: The upper surface of the assembly plate (1) is provided with a charging alignment area for carrying the wireless device to be charged. Parallel sliding rods (11) are arranged on both sides of the assembly plate (1). The transverse sliding structure includes sliding rods (11) and sliding brackets (31). A sliding coil (3) is fixedly mounted on the sliding bracket (31). Transverse sliding grooves (311) corresponding to and adapted to the sliding rods (11) are opened on both sides of the sliding bracket (31). The sliding rods (11) pass through the interior of the corresponding transverse sliding grooves (311), so that the sliding brackets (31) can drive the sliding coils (3) to complete the transverse reciprocating movement along the axial direction of the sliding rods (11).

7. A dual-mode single-motor one-to-two transmission wireless charging device according to claim 6, characterized in that: The transmission module (4) also includes a gear set (41) and a worm gear (42). The gear set (41) is composed of two upper gears (411) and a lower worm gear (412) arranged coaxially in the vertical direction. The transmission module (4) is mounted on the mounting plate (1) and located in the inner area of ​​the sliding bracket (31).

8. A dual-mode single-motor one-to-two wireless charging device according to any one of claims 3-7, characterized in that: The linkage gear assembly (22) consists of linkage column teeth (221) and linkage disc teeth (222). The linkage gear assembly (22) is rotatably mounted on the mounting plate (1). The linkage column teeth (221) are columnar in shape and consist of two vertically coaxial gears. The lower gear meshes with the linkage column teeth (221). The tooth width of the linkage disc teeth (222) is the same as that of the lifting transmission teeth (211), and it maintains constant meshing with the linkage column teeth (221) and the lifting transmission teeth (211).

9. A dual-mode single-motor one-to-two transmission wireless charging device according to claim 8, characterized in that: The inner side of the sliding bracket (31) is provided with a straight tooth section (312) parallel to the axis of the slide rod (11). The gear set (41) is rotatably mounted on the mounting plate (1) through the through hole opened in the axis and the transition shaft (413). The gear set (41) and the drive motor (43) are both fixedly mounted on the transmission bracket (44). The transmission bracket (44) is fixedly connected to the mounting plate (1).

10. A dual-mode single-motor one-to-two transmission wireless charging device according to claim 9, characterized in that: The spur gear segment (312) is driven by meshing with the worm gear (42) through the gear set (41). The worm gear (42) is coaxially mounted on the output shaft of the drive motor (43). The upper gear (411) is driven by meshing with the spur gear segment (312), and the lower worm gear (412) is driven by meshing with the worm gear (42).

11. A dual-mode single-motor one-to-two transmission wireless charging device according to claim 10, characterized in that: Two straight tooth segments (312) are provided, respectively set on both sides of the sliding bracket (31). One straight tooth segment (312) is constantly meshed with the upper gear (411) in the gear set (41), and the other is constantly meshed with the upper part of the linkage column tooth (221) in the linkage gear set (22). When the gear set (41) rotates, the straight tooth segment (312) drives the sliding bracket (31) to move horizontally. The horizontal displacement of the straight tooth segment (312) on the other side causes the meshing linkage column tooth (221) to rotate. The rotation is transmitted to the lifting transmission tooth (211) through the linkage disc tooth (222), so that the rotating movable frame (24) rotates and synchronously drives the lifting bracket (21) to complete the vertical displacement.

12. A dual-mode single-motor one-to-two transmission wireless charging device according to claim 10, characterized in that: While the gear set (41) meshes with the worm gear (42) for transmission, it maintains constant meshing with the linkage column teeth (221) in the linkage gear set (22). This allows the gear set (41) to directly drive the spur tooth section (312) to drive the sliding bracket (31) to perform horizontal displacement, while simultaneously driving the linkage column teeth (221) to drive the linkage disc teeth (222) to rotate and transmit the transmission to the lifting transmission teeth (211). This causes the rotating movable frame (24) to rotate, synchronously driving the lifting bracket (21) to complete vertical displacement.

13. A dual-mode single-motor one-to-two transmission wireless charging device according to claim 9, characterized in that: The spur section (312) is driven by meshing with the linkage column tooth (221) in the linkage gear set (22). The worm (42) is coaxially mounted on the output shaft of the drive motor (43). The lower worm (412) in the gear set (41) meshes with the worm (42) for transmission. A set of transmission gears is provided between the upper gear (411) and the lifting transmission gear (211) so that when the gear set (41) rotates, the lifting transmission gear (211) rotates synchronously, realizing the rotation of the rotating movable frame (24) and driving the vertical movement of the lifting bracket (21). At the same time, the lifting transmission gear (211) and the linkage disc tooth (222) in the linkage gear set (22) maintain constant meshing, so that when the rotating movable frame (24) rotates, the linkage disc tooth (222) drives the linkage column tooth (221) to rotate, and the spur section (312) meshing with the linkage column tooth (221) drives the sliding bracket (31) to make horizontal displacement.

14. A dual-mode single-motor one-to-two transmission wireless charging device according to claim 9, characterized in that: The assembly plate (1) is externally fixedly fitted with an upper shell (12) and a lower shell (13), which are fastened together to form an integrated protective shell.

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