Wireless charger with damping structure
By combining the design of drive components and shock absorbers, the vibration problem during the movement of the wireless charger coil is solved, enabling smooth and quiet movement of the coil assembly and improving the user experience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-27
- Publication Date
- 2026-04-03
AI Technical Summary
The coils of existing wireless chargers are not stable enough during movement, and are prone to vibration and abnormal noise, which affects the user experience.
The drive assembly is used to drive the coil assembly to move linearly, and the mounting plate is supported by multiple shock absorbers. The design of the annular groove and annular boss forms a buffer and shock absorber to reduce vibration.
It improves the stability and quietness of the coil assembly movement, enhancing the user experience.
Smart Images

Figure CN224083266U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of wireless charging technology, and more specifically, to a wireless charger with a shock-absorbing structure. Background Technology
[0002] With the development of technology and the improvement of living standards, mobile phones have become necessities in people's lives. Wireless charging technology for mobile phones is also becoming increasingly mature. Wireless charging technology achieves wireless power transmission through electromagnetic induction. In electromagnetic induction-based wireless charging, the positions of the coils at the transmitting and receiving ends greatly affect the coil coupling, significantly impacting charging efficiency. To improve charging performance, wireless chargers with adjustable coil positions have emerged on the market. These chargers use a driving component to move the coil linearly, ensuring alignment between the coil and the receiving coil in the device being charged. However, the stability of the coil in existing chargers during movement is insufficient, making them prone to vibration. This can cause components to collide and produce abnormal noises, affecting the user experience. Utility Model Content
[0003] The purpose of this invention is to provide a wireless charger with a shock-absorbing structure. Its structure is reasonable, which can ensure the smooth movement of the coil, avoid noise generation, and improve the user experience.
[0004] A wireless charger with a shock-absorbing structure includes: a base; a coil assembly slidably connected to the base; and a drive assembly including a mounting plate, a drive unit, and a plurality of shock absorbers. The drive unit is disposed on the mounting plate and connected to the coil assembly. The drive unit is configured to drive the coil assembly to move in a straight line. The plurality of shock absorbers cooperate to suspend and support the mounting plate within the base.
[0005] In the above technical solution, the driving component can drive the coil component to move linearly within a certain range to match the position of the receiving coil in the device, thus solving the problem of misalignment between the transmitting coil of the wireless charger and the receiving coil in the mobile phone. By setting multiple shock-absorbing components, the mounting plate can be suspended and supported within the base, while simultaneously providing buffering and shock absorption for the driving component mounted on the mounting plate and the coil component connected to the driving component. This reduces the vibration that the coil component may generate during movement, making the movement of the coil component smoother and quieter, and improving the user experience.
[0006] Furthermore, the outer peripheral surface of the shock absorber is formed with an annular groove extending in its circumferential direction, and annular bosses are formed on both sides of the annular groove in the axial direction. The mounting plate is provided with a connecting part, which is embedded in the annular groove and confined between the two annular bosses.
[0007] In the above technical solution, by setting an annular groove, two opposing annular bosses can be formed on the outer circumferential surface of the shock absorber. The connecting part is embedded in the annular groove. The lower annular boss can play a supporting role, while the upper annular boss can limit the connecting part in the vertical direction, thereby suspending the mounting plate and achieving the shock absorption effect.
[0008] Furthermore, there are four shock absorbers, which are respectively located at the four corners of the mounting plate.
[0009] In the above technical solution, the shock absorbers are located at the four corners of the mounting plate, which can ensure that the mounting plate is subjected to uniform force and make the overall structure more stable.
[0010] Furthermore, the drive unit includes a lead screw, a slider, and a drive component. The lead screw is rotatably mounted on the mounting plate and threadedly connected to the slider. The slider is connected to the coil assembly. The output end of the drive component is connected to the lead screw to drive the lead screw to rotate.
[0011] In the above technical solution, a driving component is used to drive the lead screw to rotate and drive the slider to move. The slider then drives the coil assembly to move linearly, thereby effectively ensuring the stability and accuracy of the coil assembly's movement.
[0012] Furthermore, the mounting plate is bent at both ends near the axial direction of the lead screw to form limiting portions, which interfere with the movement path of the slider.
[0013] In the above technical solution, the interference between the limiting part and the moving path of the slider can limit the movement of the slider, thereby controlling the maximum distance of the coil assembly movement.
[0014] Furthermore, the surface of the slider is provided with a flexible shock-absorbing pad.
[0015] In the above technical solution, the flexible damping pad can prevent vibration from being transmitted to the coil assembly, thereby further improving the stability of the structure and reducing motion noise.
[0016] Furthermore, the shock absorber has gaskets on both sides along its axial direction.
[0017] In the above technical solution, the gasket can limit the position of the damping component in the axial direction, ensuring the stability of the damping component's position.
[0018] Furthermore, the shock absorber has a through hole extending along its axial direction, and the shock absorber is connected to the base through a connector passing through the through hole.
[0019] In the above technical solution, the shock absorber and the base are connected by a connector that passes through the through hole. The structure is simple and easy to assemble and disassemble.
[0020] Compared with existing technologies, the beneficial effects of this invention are as follows: the driving component can drive the coil component to move linearly within a certain range to match the position of the receiving coil in the device, thus solving the problem of misalignment between the transmitting coil of the wireless charger and the receiving coil in the mobile phone. By setting multiple shock-absorbing components, the mounting plate can be suspended and supported within the base, while simultaneously buffering and damping the driving component on the mounting plate and the coil component connected to the driving component, reducing the vibration that may be generated during the movement of the coil component, making the movement of the coil component smoother and quieter, and improving the user experience. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the structure of a wireless charger with a shock-absorbing structure according to an embodiment of the present invention.
[0022] Figure 2 This is a schematic diagram of the coil assembly and drive assembly according to an embodiment of the present invention.
[0023] Figure 3 This is a side view of the coil assembly and drive assembly according to an embodiment of the present invention.
[0024] Figure 4 This is a schematic diagram of the structure of the driving component according to an embodiment of the present utility model.
[0025] Figure 5 for Figure 4 A magnified view of part A in the diagram.
[0026] Explanation of icon numbers:
[0027] Base 1, partition 11, coil assembly 2, drive assembly 3, mounting plate 31, connecting part 311, limiting part 312, upright plate 313, drive unit 32, lead screw 321, slider 322, drive component 323, flexible shock-absorbing pad 324, shock-absorbing component 33, annular groove 331, annular boss 332, gasket 333, connector 34. Detailed Implementation
[0028] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0029] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.
[0030] Please refer to Figures 1 to 5 In a preferred embodiment, the wireless charger with shock-absorbing structure of this utility model mainly includes a base 1, a coil assembly 2, and a drive assembly 3. The base 1 and the coil assembly 2 are slidably connected to the base 1. The drive assembly 3 includes a mounting plate 31, a drive unit 32, and multiple shock absorbers 33. The drive unit 32 is disposed on the mounting plate 31 and connected to the coil assembly 2. The drive unit 32 is configured to drive the coil assembly 2 to move linearly. The multiple shock absorbers 33 cooperate to suspend and support the mounting plate 31 within the base 1.
[0031] For example, the base 1 has a partition 11, and a receiving cavity is formed below the partition 11. The drive assembly 3 is disposed in the receiving cavity, and the coil assembly 2 passes through the partition 11 and is connected to the drive assembly 3. The mounting plate 31 is located below the partition 11, and the drive unit 32 is disposed on the mounting plate 31. The drive unit 32 can drive the coil assembly 2 to move in a straight line. The shock absorber 33 can be made of existing flexible materials, such as rubber or silicone. The shock absorber 33 is fixedly connected to the base 1 and suspends the mounting plate 31 in the receiving cavity.
[0032] As can be seen from the above technical solution, the driving component 3 can drive the coil component 2 to move linearly within a certain range to match the position of the receiving coil in the device, thus solving the problem of misalignment between the transmitting coil of the wireless charger and the receiving coil in the mobile phone. By setting multiple shock absorbers 33, the mounting plate 31 can be suspended and supported within the base 1, while simultaneously providing buffering and shock absorption for the driving component 3 mounted on the mounting plate 31 and the coil component 2 connected to the driving component 3. This reduces the vibration that the coil component 2 may generate during movement, making the movement of the coil component 2 smoother and quieter, and improving the user experience.
[0033] The outer peripheral surface of the damper 33 has an annular groove 331 extending circumferentially therein. Annular bosses 332 are formed on both axial sides of the annular groove 331. The mounting plate 31 has a connecting portion 311, which is embedded in the annular groove 331 and confined between the two annular bosses 332. For example, the connecting portion 311 has a fixing hole open at one end. The inner side of the annular groove 331 is formed into a column with a diameter smaller than that of the annular bosses 332. The diameter of this column matches the diameter of the fixing hole. The column can be inserted into the fixing hole from the opening and subjected to an interference fit, thereby confining the connecting portion 311 between the two annular bosses 332. The distance between the two annular bosses 332 matches the thickness of the connecting portion 311, enabling a tighter connection and greater stability of the mounting plate 31.
[0034] By setting the annular groove 331, two opposing annular bosses 332 can be formed on the outer peripheral surface of the shock absorber 33. The connecting part 311 is embedded in the annular groove 331. The lower annular boss 332 can play a supporting role, while the upper annular boss 332 can limit the connecting part 311 in the vertical direction, thereby suspending the mounting plate 31 and achieving the effect of shock absorption.
[0035] In this embodiment, there are four shock absorbers 33, which are respectively located at the four corners of the mounting plate 31. The placement of the shock absorbers 33 at the four corners of the mounting plate 31 ensures that the mounting plate 31 is subjected to uniform force, making the overall structure more stable.
[0036] The drive unit 32 includes a lead screw 321, a slider 322, and a drive member 323. The lead screw 321 is rotatably mounted on the mounting plate 31 and threadedly connected to the slider 322. The slider 322 is connected to the coil assembly 2. The output end of the drive member 323 is connected to the lead screw 321 to drive the lead screw 321 to rotate. For example, the drive member 323 can be a rotary drive device, such as a motor. The two ends of the mounting plate 31 are bent to form two opposing upright plates 313. The two ends of the lead screw 321 rotatably pass through the two upright plates 313. The drive member 323 is fixed to one of the upright plates 313, and its output end is connected to the lead screw 321. The drive member 323 can drive the lead screw 321 to rotate and move the slider 322. The slider 322 then drives the coil assembly 2 to move linearly, thereby effectively ensuring the stability and accuracy of the movement of the coil assembly 2.
[0037] The mounting plate 31 is bent at both ends near the axial direction of the lead screw 321 to form limiting parts 312. The limiting parts 312 interfere with the movement path of the slider 322. The interference between the limiting parts 312 and the movement path of the slider 322 can limit the movement of the slider 322, thereby controlling the maximum distance of movement of the coil assembly 2.
[0038] In this embodiment, the surface of the slider 322 is provided with a flexible damping pad 324. The flexible damping pad 324 can be made of existing flexible materials, such as rubber or silicone. The flexible damping pad 324 can prevent vibration from being transmitted to the coil assembly 2, further improving the stability of the structure and reducing motion noise.
[0039] The damper 33 has washers 333 on both sides along its axial direction. The washers 33 can limit the position of the damper 33 in the axial direction, ensuring the stability of the position of the damper 33. The damper 33 has a through hole extending along its axial direction, and the damper 33 is connected to the base 1 through a connector 34 passing through the through hole. The connector 34 can be a screw, which is threaded to the base 1. The damper 33 and the base 1 are connected through the connector 34 passing through the through hole. The structure is simple and easy to assemble and disassemble.
[0040] In the description of this utility model, it should be understood that terms such as "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0041] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0042] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A wireless charger with a shock-absorbing structure, characterized in that, include: Base; The coil assembly is slidably connected to the base; as well as The drive assembly includes a mounting plate, a drive unit, and multiple shock absorbers. The drive unit is disposed on the mounting plate and connected to the coil assembly. The drive unit is configured to drive the coil assembly to move in a straight line. The multiple shock absorbers cooperate to suspend and support the mounting plate within the base.
2. The wireless charger with a shock-absorbing structure according to claim 1, characterized in that, The outer peripheral surface of the shock absorber is formed with an annular groove extending in its circumferential direction. Annular bosses are formed on both sides of the annular groove in the axial direction. The mounting plate is provided with a connecting part, which is embedded in the annular groove and confined between the two annular bosses.
3. The wireless charger with a shock-absorbing structure according to claim 2, characterized in that, There are four shock absorbers, which are respectively located at the four corners of the mounting plate.
4. The wireless charger with a shock-absorbing structure according to claim 1, characterized in that, The drive unit includes a lead screw, a slider, and a drive component. The lead screw is rotatably mounted on the mounting plate and threadedly connected to the slider. The slider is connected to the coil assembly. The output end of the drive component is connected to the lead screw to drive the lead screw to rotate.
5. The wireless charger with a shock-absorbing structure according to claim 4, characterized in that, The mounting plate is bent at both ends near the axial direction of the lead screw to form a limiting part, and the limiting part interferes with the movement path of the slider.
6. The wireless charger with a shock-absorbing structure according to claim 4, characterized in that, The surface of the slider is provided with a flexible shock-absorbing pad.
7. The wireless charger with a shock-absorbing structure according to claim 1, characterized in that, The shock absorber has gaskets on both sides along its axial direction.
8. The wireless charger with a shock-absorbing structure according to claim 1, characterized in that, The shock absorber has a through hole extending along its axial direction, and the shock absorber is connected to the base through a connector passing through the through hole.