Dual mode wireless charging screw rail transmission

Abstract

The present application relates to wireless charging device technical field, and disclose a kind of double mode wireless charging screw rail transmission device, including by sliding support assembly transverse front-back movement sliding coil;The two sides of the sliding support are designed with sliding rail, the sliding rail includes the sliding rail, and the screw rail parallel with sliding rail, one side of the sliding support is slidably assembled with sliding rail, the other side of the sliding support is screw transmission assembly with the screw rail, the screw rail is driven to rotate by power module.The two sides of the sliding support of device are respectively guided front and back by sliding rail and screw rail, the screw rail is transmission assembly with one side of the sliding support, so that the screw rail is guided, and sliding support is driven to move front and back by rotating motion.This greatly simplifies the overall transmission structure of device.

Description

Technical Field

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

[0002] In wireless charging, to achieve higher charging efficiency, charging devices sometimes need to use different charging coils to charge the device (such as a mobile phone). Patent CN121840852A, a sliding rod-type high-lifespan dual-mode wireless charging charger, discloses a dual-mode wireless charging structure. This structure can use different power supply coils to charge different receiving coils in different modes. However, in this structure, when the sliding coil is working, it is guided and limited in the forward and backward directions by sliding rod structures on both sides. This part of the structure only has a single guiding function and needs to cooperate with the straight tooth structure of the sliding coil for transmission. During transmission, the transmission component needs to be attached to the straight tooth position of the sliding coil, making the transmission part of the charger relatively dispersed, the assembly process inconvenient, and the equipment assembly cost high. At the same time, since the transmission structure corresponding to the straight tooth part needs to be arranged on the vertical side of the sliding coil, this increases the overall thickness of the device; and the straight tooth structure on the sliding bracket and its matching transmission component also occupy additional lateral space, resulting in a large left and right width of the device, making it difficult to use in narrow assembly positions. Summary of the Invention

[0003] (a) Technical problem to be solved: In view of the shortcomings of the existing technology, the present invention provides a dual-mode wireless charging screw track transmission device, which has the advantages of miniaturization and integration, and further solves the problem of excessive overall size and thickness of the device.

[0004] (II) Technical Solution: To solve the above-mentioned technical problems, the present invention provides the following technical solution: a dual-mode wireless charging screw track transmission device, including a sliding coil that moves laterally back and forth via a sliding bracket; The sliding bracket is designed with sliding rails on both sides. The sliding rails include the sliding rod rail and the screw rail parallel to the sliding rod rail. One side of the sliding bracket is slidably assembled with the sliding rod rail, and the other side of the sliding bracket is screw-driven assembled with the screw rail. The screw rail is driven to rotate by a power module.

[0005] Preferably, the power module is installed inside the assembly housing, and the power module is connected to the end of the screw track via a transmission connection.

[0006] Preferably, the screw track is designed with a front assembly section, a screw section, and a rear assembly section in sequence. The assembly shell is designed with a front assembly column and a rear assembly column that are vertically aligned with the front assembly section and the rear assembly section, respectively. The front assembly section is designed with an axial locking block. The upper part of the front assembly column is designed with a hollow assembly groove, and the front and rear side walls of the assembly groove are designed with locking slots. The locking slots on the front assembly column lock the front assembly section of the screw track. The axial locking block is fitted into the assembly groove for front and rear positioning. The power module is connected to the front end of the screw track for transmission.

[0007] Preferably, the rear assembly column is designed with a slot to lock the rear assembly section of the screw track. When the screw track rotates, the front assembly section and the rear assembly section rotate within the slot.

[0008] Preferably, a screw bevel gear is coaxially fixed at the front end of the screw track, a vertical shaft transmission bevel gear is mounted on the upper front part of the assembly housing, and a coaxial transmission gear is fixed at the lower part of the transmission bevel gear. The power module drives the screw track to rotate through the transmission gear, the transmission bevel gear, and the screw bevel gear.

[0009] Preferably, the assembly shell is square in shape, with upward-facing sidewalls on all four sides. A hook with a downward-facing hook is fixedly mounted on the front part of the sidewall near the screw track, clamping the front assembly section downwards. This ensures a tight fit between the screw bevel gear and the transmission bevel gear.

[0010] Preferably, the assembly shell has an outwardly protruding protruding locking block on the side wall corresponding to the assembly position of the hook, and the lower part of the hook has a downwardly extending locking edge located on both sides of the lower side wall. A locking slot is machined on the locking edge corresponding to the position of the protruding locking block, and the lower edge of the locking slot is pressed and locked onto the protruding locking block.

[0011] Preferably, the upper part of the protruding block is designed with an inclined surface that transitions to the outer side wall. The hook is made of elastic material. When the hook is pressed down by the inclined surface of the protruding block at the corresponding position of the protruding block, the edge with the locking opening deforms, so that the protruding block is locked into the locking opening, and the deformation of the corresponding edge is restored.

[0012] Preferably, one side of the sliding bracket is designed with a screw groove that wraps around the mounting screw track, and a transmission bar that engages with the thread on the screw track is designed inside the screw groove.

[0013] Preferably, the transmission bar is a spiral arc or a straight bar.

[0014] Preferably, the outer side of the screw groove is open, and the screw groove includes an inner planar wall, and an upper planar wall and a lower planar wall extending outward at positions above and below the inner planar wall. The inner planar wall, the upper planar wall, and the lower planar wall are respectively designed with straight strips of the transmission bar.

[0015] Preferably, at least one of the inner plane wall, upper plane wall, and lower plane wall is designed with a forward-extending edge, and the transmission bar is correspondingly machined at the front end of the extended edge.

[0016] Preferably, the inner and lower planar walls are designed with forward-extending edges, and a transmission bar is machined at the front end of each of the forward-extending edges on the inner and lower planar walls, while two or more transmission bars are machined in the middle of the upper planar wall.

[0017] Preferably, the upper part of the assembly housing is designed with a lifting coil that moves up and down via a lifting bracket.

[0018] Preferably, the assembly housing is provided with a drive bracket that rotates along a vertical axis. The drive bracket is designed with an inclined section, and the lifting bracket is designed with a lifting slider that is linked to the inclined section. When the drive bracket rotates along the axial direction, the inclined section on the drive bracket and the lifting slider on the lifting bracket are attached and driven, so that the lifting bracket drives the lifting coil to move up and down.

[0019] Preferably, the drive bracket includes an annular drive ring wall, the lower part of which is designed with drive external teeth, which are connected to the power module for transmission, and the inclined side is designed on the outer wall surface of the drive ring wall.

[0020] Preferably, the outer wall of the drive ring is designed with a grooved drive track, the drive track includes the inclined side section, and the lifting slider is a rod that extends into the groove of the drive track.

[0021] Preferably, the lifting bracket includes a horizontally parallel transmission section and an assembly section. The lifting slider is designed on the transmission section, and the lifting coil is fixedly mounted on the assembly section. The drive bracket is driven and assembled with the transmission section. When the lifting bracket is in the lower position, the upper surface of the transmission section is lower than the upper surface of the drive bracket. That is, the lifting bracket moves up and down along the side of the drive bracket.

[0022] Preferably, the assembly section includes a downward-facing receiving cavity, in which the lifting coil is assembled.

[0023] Preferably, the power module includes a power motor, and the power module is connected to the drive gear of the drive bracket via a reduction gear set. The reduction gear set is mounted on the mounting housing.

[0024] Preferably, the drive bracket, power module, and reduction gear set are all designed on the side away from the sliding bracket.

[0025] Preferably, one end of the screw track is connected to the drive external gear transmission via a screw bevel gear (124), a transmission bevel gear (41), and a transmission gear (411).

[0026] Preferably, the assembly housing includes a left charging module and a right charging module assembled side by side.

[0027] Preferably, the left charging module includes the lifting coil and the sliding coil, and the right charging module includes a three-coil wireless charging structure.

[0028] As a preferred option, a vehicle charger uses the aforementioned wireless charging structure.

[0029] (III) Beneficial Effects: Compared with the prior art, the present invention provides a dual-mode wireless charging screw track transmission device, which has the following beneficial effects: 1. The sliding bracket of the dual-mode wireless charging screw track transmission device is guided forward and backward on both sides by a sliding rod track and a screw track, respectively. The screw track is driven and assembled with one side of the sliding bracket, so that the screw track drives the sliding bracket to move forward and backward through rotation while guiding.

[0030] This greatly simplifies the overall transmission structure of the device. At the same time, since the guiding and transmission functions are integrated into the tracks on both sides of the sliding bracket, the additional spur gear transmission structure arranged on the side of the sliding coil is eliminated, effectively reducing the lateral width of the device and enabling it to adapt to narrower installation spaces.

[0031] Furthermore, the screw track is connected to the power module via a front-end screw bevel gear, allowing the entire transmission module to be centrally designed and assembled on one side. This significantly reduces the power transmission path, helps reduce the number of transmission parts, and improves transmission efficiency. Simultaneously, the device is more convenient to assemble, resulting in lower assembly costs.

[0032] 2. In this device, the screw rail is assembled by the front and rear assembly sections and the rear assembly section with the front and rear assembly columns through the slots. At the same time, the screw rail is axially engaged into the assembly slot at the front of the power module, which makes the front end of the screw rail vibrate less during transmission and the overall transmission more stable.

[0033] Furthermore, the front end of the screw track is driven by the meshing of the screw bevel gear, the transmission bevel gear, and the transmission gear, realizing the rotational output from the vertical shaft to the horizontal shaft. At the same time, the front part of the screw track is pressed downward by a hook fixed on the assembly shell, so that the screw bevel gear is pressed against the transmission bevel gear, ensuring stable meshing during transmission.

[0034] Furthermore, the hook is left and right limited by the downward-extending locking edges on both sides of the lower side wall. The locking of the hook relative to the assembly shell is achieved by the locking holes on the locking edges and the locking blocks on the side wall of the assembly shell, thereby completely locking the screw downward.

[0035] Furthermore, the use of elastic material in the hook and the inclined surface design of the upper part of the protruding block make it easy to assemble the hook by simply pressing down the hook edge corresponding to the position of the protruding block. The hook edge can then be locked onto the protruding block, making assembly very convenient and the structure simple and easy to implement.

[0036] 3. In this device, the sliding bracket is assembled with a screw track via a screw groove designed on one side, and the screw track is assembled with a transmission bar inside the screw groove. The open structure on the outer side of the screw groove facilitates side assembly of the screw track, and the slotted structure also makes the sliding bracket easier to injection mold.

[0037] Furthermore, the screw groove is designed as a three-sided enclosing structure with an inner planar wall, an upper planar wall, and a lower planar wall, and is assembled with the screw track via a straight transmission bar. This design further facilitates the production and assembly of the sliding bracket.

[0038] Furthermore, the forward-extending edges designed on the inner and lower planar walls allow the corresponding transmission bars to elastically deform outwards when connected to the screw track, effectively preventing jamming between the screw track and the transmission bars. Simultaneously, the outward elastic deviation of the transmission bars effectively eliminates vibrations during screw track transmission, resulting in smoother operation of the sliding bracket.

[0039] 4. This device utilizes the contact transmission between the inclined section on the drive bracket and the lifting slider on the lifting bracket. When the drive bracket rotates, the inclined section rotates along with it, thus pushing the limited lifting bracket up and down via the lifting slider. This achieves the conversion of external rotational output force into vertical lifting motion. In this structure, the inclined section is designed on the drive ring wall, and the drive ring wall and the external drive gear are integrally machined, greatly simplifying the overall structure of the drive component. The tilt angle design of the inclined section on the drive ring wall allows for easy design of the lifting speed of the lifting bracket.

[0040] Furthermore, the inclined section is designed on the drive rail outside the drive ring wall of the drive bracket. The drive rail uses a grooved track structure, and the lifting slider adopts a rod structure that extends into the groove of the drive rail. This structure is simple and easy to implement. At the same time, the design of two or more drive rails evenly distributed on the outside of the drive ring wall makes the overall force on the lifting bracket more balanced.

[0041] Furthermore, by segmenting the lifting bracket to the left and right, the lifting coil and the drive bracket are staggered. This allows the drive bracket to move up and down in a staggered manner relative to the lifting coil as it moves. This keeps the lifting coil positioned to the side of the drive bracket. When the sliding coil is in operation, it is located above the lifting coil and to the side of the drive bracket. This significantly reduces the overall height of the dual-mode charging structure, resulting in a thinner and more compact design. This makes the device more suitable for compact locations, such as in the space-constrained wireless charging applications of automobiles. Attached Figure Description

[0042] Figure 1 This is a schematic diagram of the internal lifting coil and sliding coil exposed state in Embodiment 1 of the present invention; Figure 2 This is a schematic diagram of the internal lifting coil and sliding coil covering state structure in Embodiment 1 of the present invention; Figure 3 This is a three-dimensional enlarged schematic diagram of the transmission assembly connection at the front end of the screw track in Embodiment 1 of the present invention.

[0043] Figure 4 This is a schematic diagram of the integrated structure of the transmission bevel gear and the transmission gear in Embodiment 1 of the present invention.

[0044] Figure 5 This is a three-dimensional structural diagram of the hook structure in Embodiment 1 of the present invention.

[0045] Figure 6 This is a three-dimensional enlarged view of the corresponding hook position of the assembly shell in Embodiment 1 of the present invention.

[0046] Figure 7 This is a three-dimensional structural diagram of the sliding bracket screw groove portion of Embodiment 1 of the present invention.

[0047] Figure 8 This is a schematic diagram of the structure of the extended edge of the sliding bracket on the back side in Embodiment 1 of the present invention.

[0048] Figure 9 This is a three-dimensional structural diagram of the drive bracket according to Embodiment 1 of the present invention; Figure 10This is a three-dimensional structural diagram of the lifting support according to Embodiment 1 of the present invention; Figure 11 This is a schematic diagram of the power module, reduction module, drive bracket and screw track transmission on the top of the assembly shell in Embodiment 1 of the present invention; Figure 12 This is a three-dimensional schematic diagram of the internal structure of Embodiment 2 of the present invention.

[0049] In the picture: 02. Left charging module; 03. Right charging module; 1. Assembly shell; 101. Front assembly column; 102. Rear assembly column; 1011. Assembly groove; 11. Slide rod rail; 12. Screw rail; 121. Front assembly section; 1211. Axial locking block; 122. Screw section; 123. Rear assembly section; 124. Screw bevel gear; 13. Side wall; 131. Protruding locking block; 132. Inclined surface; 14. Locking hook; 141. Locking edge; 142. Locking opening; 2. Lifting coil; 21. Lifting bracket; 211. Transmission section; 2111. Lifting slider; 212. Assembly section; 3. Sliding coil; 31. Sliding bracket; 311. Screw groove; 3110. Protruding edge; 3111. Transmission bar; 3112. Inner plane wall; 3113. Upper plane wall; 3114. Lower plane wall. 4. Power module; 40. Reduction gear set; 41. Transmission bevel gear; 411. Transmission gear. 5. Drive bracket, 51. Drive ring wall, 511. Drive track, 5111. Inclined section, 52. Drive external gear. Detailed Implementation

[0050] 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. In the present invention, the main orientation limitations are all temporary settings based on the drawings and are not intended to limit this patent. 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.

[0051] Example 1 In this embodiment, the dual-mode wireless charging screw-track transmission device is mainly used in vehicle chargers. Its overall shape and structure are similar to traditional dual-mode switching wireless charging devices, and will not be described in detail here. In this embodiment, as... Figure 1 and Figure 2As shown, the bottom of the device is designed with an assembly shell 1, which can serve as the outer shell structure directly, or it can be a separate assembly component inside the overall device. The assembly shell 1 contains a sliding coil 3 that moves laterally back and forth, mounted via a sliding bracket 31.

[0052] The sliding bracket 31 has parallel sliding rod rails 11 and screw rails 12 on both sides. The assembly structure of the sliding rod rails 11 and the corresponding side of the sliding bracket 31 is similar to the traditional structure and will not be described in detail here. The other side of the sliding bracket 31 is slidably assembled with the sliding rod rails 11, and the other side of the sliding bracket 31 is screw-driven assembled with the screw rails 12. The screw rails 12 are driven to rotate by the power module 4. The power module 4 can be a motor or a transmission module of a motor. In this embodiment, the power module 4 is installed in the front position inside the assembly shell 1, and the power module 4 is connected to the screw rails 12 in a transmission manner.

[0053] The sliding bracket 21 of this dual-mode wireless charging screw-track transmission device is guided forward and backward on both sides by a sliding rod track 11 and a screw track 12, respectively. The screw track 12 is driven and assembled with one side of the sliding bracket 21, so that while guiding, the screw track 12 drives the sliding bracket 21 to move forward and backward through rotation. This structural design combines the original track guiding structure and separate transmission assembly structure on one side of the sliding bracket 21 into one unit, thus greatly simplifying the overall transmission structure of the device and making assembly more convenient.

[0054] like Figure 1 and 3 As shown, in this embodiment, the screw track 12 is coaxially integrated with the front and rear of the screw section 121, the screw section 122, and the rear assembly section 123. The front assembly section 121 and the rear assembly section 123 are assembly rod shaft structures. The right side of the assembly shell 1 is designed with a front assembly column 101 and a rear assembly column 102 that are vertically upward and correspond to the front assembly section 121 and the rear assembly section 123, respectively. The front assembly section 121 is designed with an axial locking block 1211, which is cylindrical. The upper part of the front assembly column 101 is designed with a hollow assembly groove 1011, and the front and rear side walls of the assembly groove 1011 are designed with slots. The slots on the front assembly column 101 clamp the front assembly section 121 of the screw track 12, and the axial locking block 1211 is fitted into the assembly groove 1011 for front and rear positioning. The power module 4 is connected to the front end of the screw track 12 for transmission.

[0055] In this device, the screw rail 12 is fastened and assembled with the corresponding slots on the front assembly column 101 and the rear assembly column 102 through the front and rear assembly sections 121 and the rear assembly section 123. At the same time, the screw rail 12 is engaged into the assembly groove 1011 at the front of the power module 4 by the axial locking block 1211. Since the axial locking block 1211, which serves as the limiting assembly position, is closer to the front end of the screw rail 12 at the power transmission position, the front end of the screw rail 12 vibrates less during transmission, and the overall transmission is more stable.

[0056] In the specific design, such as Figure 1 As shown, the rear assembly column 102 is also designed with a slot structure to clamp the rear assembly section 123 of the screw track 12. When the screw track 12 rotates, the front assembly section 121 and the rear assembly section 123 drive the screw section 122 to rotate in the slot.

[0057] like Figure 1 , Figure 3 and Figure 4 As shown, a screw bevel gear 124 is coaxially fixed to the front end of the screw track 12. The screw track 12 and the screw bevel gear 124 can be an integral structure or a separate fixed assembly structure. A vertical shaft transmission bevel gear 41 is mounted on the upper front part of the assembly shell 1, and a coaxial transmission gear 411 is fixed to the lower part of the transmission bevel gear 41. In this embodiment, the bevel gear 41 and the transmission gear 411 are integrally machined. The integral machining of the bevel gear 41 and the transmission gear 411 not only reduces the machining and assembly cost, but also reduces the transmission error and improves the transmission effect.

[0058] The power module 4 drives the transmission gear 411 through the reduction gear set 40, thereby causing the transmission bevel gear 41, which is coaxially fixed with the transmission gear 411, to rotate as a unit. Then, the transmission bevel gear 41 meshes with and drives the screw bevel gear 124 to rotate together with the screw track 12. This realizes the conversion from rotational output on the vertical axis to rotational output on the horizontal axis.

[0059] In this embodiment, the screw track 12 is connected to the power module 4 via the screw bevel gear 124 at the front end. This allows the entire transmission module of the device to be centrally designed and assembled at the front end, greatly reducing the power transmission path, helping to reduce the number of transmission parts and improve transmission efficiency. At the same time, the device is more convenient to assemble and has lower assembly costs.

[0060] like Figure 3 , Figure 5 and Figure 6As shown, the assembly shell 1 has a similar structure to the traditional structure, being square in shape, with upward-facing sidewalls 13 on all four sides. In this embodiment, a hook 14 with a downward-facing hook is fixedly mounted near the front part of the sidewall 13 close to the screw track 12. The hook 14 hooks the front assembly section 121 downwards, and in conjunction with the slot structure of the front assembly post 101 and the rear assembly post 102, the screw bevel gear 124 and the transmission bevel gear 41 are pressed together. This ensures that the screw bevel gear 124 is pressed against the transmission bevel gear 41, guaranteeing stable meshing during the transmission of this part of the bevel gear transmission assembly.

[0061] The assembly housing 1 has an outwardly protruding locking block 131 on the side wall 13 corresponding to the assembly position of the hook 14. The lower part of the hook 14 has downwardly extending locking edges 141 located on both sides of the lower side wall 13. In this embodiment, a locking slot 142 is machined on the right locking edge 141 corresponding to the position of the protruding locking block 131. The locking slot 142 is a through hole. The locking block 131 adopts a square structure. After assembly, the lower edge of the locking slot 142 is pressed and locked onto the protruding locking block 131.

[0062] In the above structure, the hook 14 is left and right limited by the downwardly extending edges 141 on both sides of the lower side wall 13. The hook is fully positioned relative to the assembly shell by the locking fit between the locking slot 142 on the right edge 141 and the protruding locking block 131 on the side wall 13 of the assembly shell 1, thereby fully locking the screw downward.

[0063] In the specific design, such as Figure 6 As shown, the upper part of the protruding latch 131 is designed with an inclined surface 132 that smoothly transitions to the outer side wall. During processing, the latch 14 is made of an elastic material. Thus, when the latch 14 is pressed downwards by the inclined surface 132 of the protruding latch 131 at the corresponding position, the latching edge 141 with the latching opening 142 deforms. When the protruding latch 131 reaches the latching opening 142, the corresponding latching edge 141 returns to its original shape, allowing the protruding latch 131 to engage with the latching opening 142, completing the latching process. During the assembly of this latching structure, simply pressing down the latching edge of the latch corresponding to the protruding latch position is sufficient to achieve latching of the latching opening of the lower latching edge of the latch onto the protruding latch. Assembly is very convenient, and the structure is simple and easy to implement. While ensuring latching accuracy, it can significantly reduce the assembly cost for workers, thereby effectively reducing the product assembly cost.

[0064] like Figure 1 and Figure 7 Figure 8As shown, one side of the sliding bracket 31 is designed with a screw groove 311 that encloses the mounting screw rail 12. A transmission bar 3111, which engages with the threads on the screw rail 12, is designed within the screw groove 311. This enables the transmission assembly between the screw groove 311 and the screw rail 12. The open structure on the outer side of the screw groove 311 facilitates the side assembly of the screw rail 12. This slotted structure also makes the sliding bracket 31 easier to injection mold.

[0065] In the specific design, the transmission bar 3111 can adopt a helical arc shape corresponding to the screw section 122, thus achieving transmission through the internal and external meshing arc-shaped threads. The helical arc shape is the internal thread structure of the screw sleeve commonly used in screw drives; it can also be a half-screw sleeve structure after the screw sleeve has been cut open. This will not be described in detail here. However, this transmission structure results in too many contact points and greater resistance when the screw track 12 rotates. In this embodiment, the transmission bar 3111 adopts a straight bar structure. This reduces the number of contact points between the screw groove 311 and the screw track 12 during transmission, resulting in less assembly deformation and frictional resistance, higher transmission efficiency, and a lower possibility of jamming.

[0066] like Figure 7 and Figure 8 As shown, the outer side of the screw groove 311 is open. The screw groove 311 includes an inner planar wall 3112, and an upper planar wall 3113 and a lower planar wall 3114 extending outwards from above and below the inner planar wall. Straight-shaped transmission bars 3111 are designed on the inner planar wall 3112, upper planar wall 3113, and lower planar wall 3114, respectively. The positions of the transmission bars 3111 on the three planes are staggered.

[0067] The planar structure design makes the structure more regular, and the staggered transmission bars 3111 make the sliding bracket 31 easier to injection mold. The three-sided wrapping structure of the mounting screw rail 12, together with the sliding rod rail 11 on the left, ensures that the sliding bracket 21 is fully positioned. This structural design makes the production and assembly of the sliding bracket 31 more convenient.

[0068] At least one of the inner planar wall 3112, upper planar wall 3113, and lower planar wall 3114 is designed with a forward-extending edge 3110, and the transmission bar 3111 is correspondingly machined at the front end of the extended edge 3110. In this embodiment, in a specific design, such as Figure 7 and Figure 8As shown, the inner plane wall 3112 and the lower plane wall 3114 are designed with forward-extending edges 3110. The extended edges 3110 of the inner plane wall 3112 are located in the slotted structure portion, ensuring the stability of the inner plane wall 3112 of the sliding bracket 31. A transmission bar 3111 is machined at the front end of the extended edges 3110 on both the inner plane wall 3112 and the lower plane wall 3114, while two or more transmission bars 3111 are machined in the middle of the upper plane wall 3113. In this transmission, the transmission force of the sliding bracket 31 mainly comes from the transmission bars 3111 of the upper plane wall 3113. The upper plane wall 312 does not use an extended edge structure but is designed with multiple transmission bars 3111, making this main force-bearing part stronger and less prone to damage.

[0069] The forward-extending edges 3110 designed on the inner plane wall 3112 and the lower plane wall 3114, along with the corresponding individual transmission bars 3111 on the extended edges 3110, allow the corresponding transmission bars to elastically deform outwards when connected to the screw track 12. This effectively prevents the screw track 12 and the transmission bars 3111 from jamming. Simultaneously, the outward elastic deviation of the transmission bars 3111 effectively eliminates vibrations during screw track 12 transmission, resulting in smoother operation of the sliding bracket 31.

[0070] In this embodiment, the wireless charging device has a dual-mode charging structure, such as... Figure 1 and Figure 2 As shown, the upper part of the assembly shell 1 is designed with a lifting coil 2 that moves up and down, assembled by a lifting bracket 21. In a specific design, the assembly shell 1 is provided with a drive bracket 5 that rotates along a vertical axis. The drive bracket 5 is designed with a beveled section 5111, and the lifting bracket 21 is designed with a lifting slider 2111 that is linked to the beveled section 5111. When the drive bracket 5 rotates along the axial direction, the beveled section 5111 on the drive bracket 5 and the lifting slider 2111 on the lifting bracket 21 are attached and driven, so that the lifting bracket 21 drives the lifting coil 2 to move up and down.

[0071] The device achieves vertical lifting and lowering motion by connecting the inclined section 5111 on the drive bracket 5 with the lifting slider 2111 on the lifting bracket 21 through the attachment and transmission. When the drive bracket 5 rotates, the inclined section 5111 rotates along with it, thus pushing the limited lifting bracket 21 to move up and down through the lifting slider 2111. This realizes the conversion of external rotational output force into vertical lifting and lowering motion.

[0072] like Figure 1 and Figure 9As shown, the drive bracket 5 includes an annular drive ring wall 51, and the lower part of the drive ring wall 51 is designed with drive external teeth 52. The drive external teeth 52 are connected to the power module 4 for transmission. The inclined side section 5111 is designed on the outer wall surface of the drive ring wall 51.

[0073] The inclined segment 5111 in this structure is designed on the drive ring wall 51, and the drive ring wall 51 and the drive external gear 52 are integrally machined, which greatly simplifies the overall structure of the drive component. The speed of the lifting movement of the lifting bracket 21 can be easily designed by the tilt angle design of the inclined segment 5111 on the drive ring wall 51.

[0074] The outer wall of the drive ring wall 51 is designed with a groove structure for the drive track 511. The drive track 511 includes the inclined side section 5111. The lifting slider 2111 is a rod that extends into the groove of the drive track 511.

[0075] The drive rail 511 uses a grooved track structure, while the lifting slider 2111 adopts a rod structure that extends into the groove of the drive rail 511. This structure is simple and easy to implement. Furthermore, in this embodiment, the design of two or more drive rails 511 evenly distributed on the outer side of the drive ring wall 51 makes the overall force distribution on the lifting bracket 21 more balanced.

[0076] like Figure 1 and Figure 10 As shown, the lifting bracket 21 includes a horizontally parallel transmission section 211 and an assembly section 212. The lifting slider 2111 is designed on the transmission section 211, and the lifting coil 2 is fixedly assembled on the assembly section 212. The drive bracket 5 is driven and assembled with the transmission section 211. When the lifting bracket 21 is in the lower position, the upper surface of the transmission section 211 is lower than the upper surface of the drive bracket 5. That is, the lifting bracket 21 moves up and down along the side of the drive bracket 5.

[0077] By segmenting the lifting bracket 21 left and right, the lifting coil 2 and the drive bracket 5 are staggered. This allows the drive bracket 5 to move up and down in a staggered manner relative to the lifting coil 2. This keeps the lifting coil 2 positioned to the side of the drive bracket 5. When the sliding coil 3 is in operation, it is located above the lifting coil 2 and to the side of the drive bracket 5. This significantly reduces the overall height of the dual-mode charging structure, resulting in a thinner and more compact design. This makes the device more suitable for compact locations, such as in the limited space required for wireless charging in automobiles.

[0078] In the specific design, such as Figure 10As shown, the assembly section 212 includes a downward-facing receiving cavity, in which the lifting coil 2 is assembled. This forms a closed charging platform on the upper part of the assembly section 212. If the upper casing of the device adopts a perforated structure, this structure can provide waterproofing and dustproofing.

[0079] The specific design of the transmission structure, such as Figure 1 , 2 and Figure 11 As shown, the power module 4 includes a power motor 41 and other transmission gear structures. The power module 4 is connected to the drive external gear 52 of the drive bracket 5 via a reduction gear set 40. The drive bracket 5, power module 4, and reduction gear set 40 are all designed on the side away from the sliding bracket 31. One end of the screw track is connected to the drive external gear via a screw bevel gear 124, a transmission bevel gear 41, and a transmission gear 411.

[0080] The transmission structure design of the drive bracket 5 and the lifting bracket 21 allows the power module 4, the reduction gear set 40, and the drive external gear 52 to be easily assembled on the same side. At the same time, combined with the design of the transmission bevel gear 41, the transmission gear 411, and the screw bevel gear 124, the entire transmission structure is designed on the upper part of the assembly shell, which makes assembly and maintenance very convenient. In addition, the distance between each transmission component is shorter, resulting in higher transmission efficiency.

[0081] Example 2 In this embodiment, as Figure 12 As shown, the wireless charging device has a more square-like overall structure. The assembly housing 1 includes a left charging module 02 and a right charging module 03 assembled side-by-side. The left charging module 02 adopts a dual-mode charging structure, including the lifting coil 2 and the sliding coil 3. The above structure is basically the same as that in Embodiment 1, and will not be described in detail here.

[0082] In this embodiment, the right charging module 03 uses a three-coil wireless charging structure. This charging structure, together with the charging structure used by the left charging module 02, forms a parallel wireless charging structure. These two parallel wireless charging structures are assembled together in the mounting shell 1 of this embodiment. After the upper part of the embodiment is covered by the mounting shell, independent charging structures corresponding to the left and right sides can be formed on the upper part. This wireless charging structure is used in the middle position of the front row of the car, where the left charging module 02 serves as the main charging position corresponding to the driver's seat, and the right charging module 03 serves as the charging position corresponding to the passenger's seat. The left charging module 02 and the right charging module 03 can charge the devices to be wirelessly charged independently.

[0083] It should be noted that, in this document, relational terms such as "first" and "second" are used merely 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.

[0084] 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 wireless charging screw track transmission device, comprising an assembly housing (1), wherein a sliding coil (3) for lateral back-and-forth movement is designed inside the assembly housing (1) via a sliding bracket (31); characterized in that: The sliding bracket (31) is designed with parallel sliding rod rails (11) and screw rails (12) on both sides. One side of the sliding bracket (31) is slidably assembled with the sliding rod rail (11), and the other side of the sliding bracket (31) is screw-driven assembled with the screw rail (12). The screw rail (12) is driven to rotate by the power module (4).

2. The dual-mode wireless charging screw track transmission device according to claim 1, characterized in that: The power module (4) is installed inside the assembly shell (1), and the power module (4) is connected to the end of the screw rail (12) via a transmission connection.

3. The dual-mode wireless charging screw track transmission device according to claim 1, characterized in that: The screw track (12) is designed with a front assembly section (121), a screw section (122), and a rear assembly section (123) in sequence. The assembly shell (1) is designed with a front assembly column (101) and a rear assembly column (102) that are vertically aligned with the front assembly section (121) and the rear assembly section (123). The front assembly section (121) is designed with an axial locking block (1211). The upper part of the front assembly column (101) is designed with a hollow assembly groove (1011). The front and rear side walls of the assembly groove (1011) are designed with locking slots. The locking slots on the front assembly column (101) lock the front assembly section (121) of the screw track (12). The axial locking block (1211) is fitted into the assembly groove (1011) for front and rear positioning. The power module (4) is connected to the front end of the screw track (12) for transmission.

4. The dual-mode wireless charging screw track transmission device according to claim 3, characterized in that: The rear assembly column (102) is designed with a slot to clamp the rear assembly section (123) of the screw rail (12). When the screw rail (12) rotates, the front assembly section (121) and the rear assembly section (123) rotate within the slot.

5. The dual-mode wireless charging screw-track transmission device according to claim 1, characterized in that: The front end of the screw track (12) is coaxially fixed with a screw bevel gear (124), and the upper part of the front of the assembly shell (1) is equipped with a vertical shaft transmission bevel gear (41). The lower part of the transmission bevel gear (411) is fixed with a coaxial transmission gear (411). The power module (4) drives the screw track (12) to rotate through the transmission gear (411), the transmission bevel gear (41), and the screw bevel gear (124).

6. The dual-mode wireless charging screw track transmission device according to claim 5, characterized in that: The assembly shell (1) is square in shape. The four sides of the assembly shell (1) are designed with upward sidewalls (13). A hook (14) with a downward hook head is fixedly installed at the front part of the sidewall near the screw track (12). The hook (14) hooks the front assembly section (121) downward and tightens it, so that the screw bevel gear (124) and the transmission bevel gear (41) are pressed together.

7. The dual-mode wireless charging screw track transmission device according to claim 6, characterized in that: The assembly shell (1) has an outwardly protruding protruding locking block (131) on the side wall (13) corresponding to the assembly position of the hook (14). The lower part of the hook (14) has a downwardly extending locking edge (141) located on both sides of the lower side wall (13). A locking slot (142) is machined on the locking edge (141) corresponding to the position of the protruding locking block (131). The lower edge of the locking slot (142) is pressed and locked onto the protruding locking block (131).

8. The dual-mode wireless charging screw track transmission device according to claim 7, characterized in that: The upper part of the protruding block (131) is designed with an inclined surface (132) that transitions to the outer side wall. The hook (14) is made of elastic material. When the hook (14) is pressed down by the inclined surface of the protruding block (131) at the corresponding position of the protruding block (131), the edge (141) with the slot (142) deforms, so that the protruding block (131) is locked into the slot (142), and the deformation of the corresponding edge (141) is restored.

9. The dual-mode wireless charging screw-track transmission device according to claim 1, characterized in that: The sliding bracket (31) has a screw groove (311) on one side that wraps around the assembly screw rail (12), and a transmission bar (3111) that is inserted into the thread on the screw rail (12) is designed inside the screw groove (311).

10. The dual-mode wireless charging screw track transmission device according to claim 9, characterized in that: The transmission bar (3111) is either a spiral arc or a straight bar.

11. The dual-mode wireless charging screw-track transmission device according to claim 10, characterized in that: The outer side of the screw groove (311) is open. The screw groove (311) includes an inner plane wall (3112) on the inner side, and an upper plane wall (3113) and a lower plane wall (3114) extending outward at the upper and lower positions of the inner plane wall. The inner plane wall (3112), the upper plane wall (3113), and the lower plane wall (3114) are respectively designed with straight strip-shaped transmission bars (3111).

12. The dual-mode wireless charging screw track transmission device according to claim 11, characterized in that: At least one of the inner plane wall (3112), upper plane wall (3113), and lower plane wall (3114) is designed with a forward-extending edge (3110), and the transmission bar (3111) is correspondingly machined at the front end of the extended edge (3110).

13. The dual-mode wireless charging screw track transmission device according to claim 12, characterized in that: The inner plane wall (3112) and the lower plane wall (3114) are designed with forward-extending edges (3110). The front end of the protruding edges (3110) on the inner plane wall (3112) and the lower plane wall (3114) is respectively machined with a transmission bar (3111). The upper plane wall (3113) is machined with two or more transmission bars (3111) in the middle.

14. The dual-mode wireless charging screw-track transmission device according to any one of claims 1-13, characterized in that: The upper part of the assembly shell (1) is designed with a lifting coil (2) that moves up and down and is assembled by a lifting bracket (21).

15. The dual-mode wireless charging screw-track transmission device according to claim 14, characterized in that: The assembly housing (1) is provided with a drive bracket (5) that rotates along the vertical axis. The drive bracket (5) is designed with a slanted section (5111). The lifting bracket (21) is designed with a lifting slider (2111) that is linked with the slanted section (5111). When the drive bracket (5) rotates along the axial direction, the inclined section (5111) on the drive bracket (5) is attached to the lifting slider (2111) on the lifting bracket (21) for transmission, so that the lifting bracket (21) drives the lifting coil (2) to move up and down.

16. The dual-mode wireless charging screw-track transmission device according to claim 15, characterized in that: The drive bracket (5) includes an annular drive ring wall (51), and the lower part of the drive ring wall (51) is designed with drive external teeth (52). The drive external teeth (52) are connected to the power module (4) for transmission. The inclined side section (5111) is designed on the outer wall surface of the drive ring wall (51).

17. The dual-mode wireless charging screw-track transmission device according to claim 16, characterized in that: The outer wall of the drive ring wall (51) is designed with a groove structure for the drive track (511), the drive track (511) includes the inclined side section (5111), and the lifting slider (2111) is a rod that extends into the groove of the drive track (511).

18. The dual-mode wireless charging screw-track transmission device according to claim 15, characterized in that: The lifting bracket (21) includes a horizontally parallel transmission section (211) and an assembly section (212). The lifting slider (2111) is designed on the transmission section (211), and the lifting coil (2) is fixedly assembled on the assembly section (212). The drive bracket (5) is driven and assembled with the transmission section (211). When the lifting bracket (21) is in the lower position, the upper surface of the transmission section (211) is lower than the upper surface of the drive bracket (5). That is, the lifting bracket (21) moves up and down on the side of the drive bracket (5).

19. The dual-mode wireless charging screw-track transmission device according to claim 18, characterized in that: The assembly section (212) includes a downward-facing receiving cavity in which the lifting coil (2) is assembled.

20. The dual-mode wireless charging screw-track transmission device according to claim 16, characterized in that: The power module (4) includes a power motor (41), and the power module (4) is connected to the drive external gear (52) of the drive bracket (5) through a reduction gear set (40).

21. The dual-mode wireless charging screw track transmission device according to claim 20, characterized in that: The drive bracket (5), power module (4), and reduction gear set (40) are all designed on the side away from the sliding bracket (31).

22. The dual-mode wireless charging screw-track transmission device according to claim 20, characterized in that: One end of the screw track is connected to the drive external gear transmission via a screw bevel gear (124), a transmission bevel gear (41), and a transmission gear (411).

23. The dual-mode wireless charging screw-track transmission device according to any one of claims 1-13, characterized in that: The assembly housing includes a left charging module (02) and a right charging module (03) assembled side by side.

24. The dual-mode wireless charging screw track transmission device according to claim 23, characterized in that: The left charging module (02) includes a lifting coil (2) and a sliding coil (3), and the right charging module (03) includes a three-coil wireless charging structure.

25. A vehicle charger, characterized in that: Includes the wireless charging structure according to any one of claims 1-24.

Images