Wireless charging device

Abstract

The embodiment of the utility model provides a wireless charging device which comprises a base, a sleeve, a telescopic rod, a charging module and a locking structure, at least part of the structure of the sleeve is embedded in the periphery of the telescopic rod in the radial direction, the telescopic rod can move in the axial direction relative to the sleeve in the direction away from the base, and the sleeve is provided with at least one locking groove; the locking structure is connected with the telescopic rod, the locking structure comprises a bead shifting assembly, the telescopic rod is used for driving the locking structure to move relative to the sleeve in the height direction, and the bead shifting assembly can be inserted into or pushed into the locking groove so as to adjust the height of the wireless charging device. According to the wireless charging device provided by the embodiment of the invention, the telescopic rod moves relative to the sleeve to realize the matching of the locking structure and the locking groove, so that the wireless charging device has different height states so as to adapt to different requirements, a user can adjust the height of the wireless charging device as required, and the user experience is improved. Therefore, the wireless charging device has different charging heights, and the use flexibility of the wireless charging device is high.

Description

Technical Field

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

[0002] Wireless charging devices are chargers that do not require a traditional charging cable to connect to the device being charged. However, in some technologies, the height of the wireless charging device is not adjustable, making it impossible to adjust the height of the device, resulting in inconvenience and a poor user experience. Utility Model Content

[0003] In view of this, the present application aims to provide a wireless charging device that, through the cooperation of the beaded assembly and the locking groove, enables height adjustment of the wireless charging device, making it convenient to operate and highly flexible in use.

[0004] This application provides a wireless charging device, including:

[0005] Base;

[0006] The sleeve is connected to the base;

[0007] A telescopic rod, wherein at least a portion of the sleeve is radially nested around the outer periphery of the telescopic rod, and the telescopic rod is axially movable relative to the sleeve in a direction away from the base to increase the height of the wireless charging device, the sleeve having at least one locking groove;

[0008] A charging module is located at the end of the telescopic rod away from the sleeve, and is used for wireless charging of mobile devices;

[0009] A locking structure is connected to the telescopic rod. The locking structure includes a beaded assembly. The telescopic rod is used to drive the locking structure to move relative to the sleeve in the height direction. The beaded assembly can be inserted into or pushed into the locking groove to adjust the height of the wireless charging device.

[0010] In some embodiments, the number of locking grooves is two, and the two locking grooves are symmetrically arranged about the axis of the sleeve;

[0011] And / or, the number of the beaded components is multiple, the multiple beaded components are spaced apart along the height direction and cooperate with the locking groove, wherein each beaded component includes two beads, and the two beads are symmetrically arranged about the axis of the sleeve.

[0012] In some embodiments, the wireless charging device further includes a limiting cylinder, which is sleeved on the outer periphery of the telescopic rod on the side away from the locking structure. The sleeve is sleeved on the outer periphery of the limiting cylinder. The limiting cylinder and the sleeve are connected and there is no relative movement between them. The limiting cylinder can detachably abut against the top surface of the locking structure to limit the movement of the telescopic rod in the height direction.

[0013] In some implementations, the outer periphery of the limiting cylinder is provided with a protrusion, the sleeve is provided with a connecting hole, and the protrusion passes through the connecting hole.

[0014] In some embodiments, the locking structure includes a cylindrical portion sleeved on the outer periphery of the end of the telescopic rod away from the charging module, a sleeve sleeved on the outer periphery of the cylindrical portion, a portion of the bead assembly protruding from the outer periphery of the cylindrical portion, at least one groove formed on the outer periphery of the cylindrical portion, and at least one first rib provided on the inner wall surface of the sleeve, the first rib passing through the groove.

[0015] In some implementations, a positioning groove is formed on the outer periphery of the limiting cylinder, and a second rib is provided on the inner wall surface of the sleeve. The second rib is connected to the first rib and is located on the top side of the first rib. The second rib passes through the positioning groove.

[0016] In some embodiments, a portion of the top wall of the sleeve is recessed to form an abutment surface, and the side of the limiting cylinder away from the locking structure abuts against the abutment surface;

[0017] And / or, along the radial direction of the sleeve, the size of the second rib is smaller than the size of the first rib, and a stepped structure is formed at the junction of the two, with the bottom end face of the limiting cylinder supported by the stepped structure.

[0018] In some implementations, the telescopic rod includes a rod portion and a connector, the telescopic rod being connected to the charging module via the connector, and the charging module being capable of circumferential rotation and / or vertical swinging relative to the telescopic rod.

[0019] In some implementations, the surfaces of the contact points between the connector and the charging module are formed as spherical surfaces, so that the charging module can rotate circumferentially and swing up and down relative to the telescopic rod.

[0020] In some implementations, the wireless charging device further includes a wireless power supply module disposed within the base.

[0021] The wireless charging device provided in this application embodiment achieves the engagement of the locking structure and the locking groove by moving the telescopic rod relative to the sleeve, thus enabling the wireless charging device to have different height states to adapt to different needs. Users can adjust the height of the wireless charging device as needed to achieve different charging heights, making the wireless charging device highly flexible in use. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of a wireless charging device according to an embodiment of this application;

[0023] Figure 2 This is a schematic diagram of the structure shown in this application from another perspective;

[0024] Figure 3 for Figure 1 An exploded schematic diagram of the wireless charging device shown.

[0025] Figure 4 for Figure 1 Another exploded view of the wireless charging device shown.

[0026] Figure 5 for Figure 1 A schematic diagram showing the fit between the sleeve and the base;

[0027] Figure 6 This is a schematic diagram of the limiting cylinder.

[0028] Explanation of reference numerals in the attached figures

[0029] 1- Wireless charging device;

[0030] 10-Base; 11-Sleeve; 11a-Locking groove; 11b-Connecting hole; 11c-Abutting surface; 111-First rib; 112-Second rib; 113-Step structure; 12-Telescopic rod; 121-Rod part; 122-Connector; 13-Charging module; 131-Housing; 14-Locking structure; 141-Turn-on assembly; 142-Cylinder part; 142a-Slide groove; 15-Limiting cylinder; 151-Protruding post; 15a-Positioning groove. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0032] The specific technical features described in the specific embodiments can be combined in any suitable manner without contradiction. For example, different combinations of specific technical features can form different embodiments and technical solutions. To avoid unnecessary repetition, the various possible combinations of the specific technical features in this invention will not be described separately.

[0033] In the following description, the terms "first," "second," etc., are used merely to distinguish different objects and do not indicate that the objects have the sameness or relationship. It should be understood that the directional descriptions "above," "below," "outside," and "inside" refer to the orientation under normal use conditions, while "left" and "right" refer to the left and right directions shown in the corresponding diagrams, which may or may not be the left and right directions under normal use conditions.

[0034] It should be noted that 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. Unless otherwise specified, 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 that element. "A plurality of" means two or more.

[0035] This application provides a wireless charging device 1.

[0036] It is understood that wireless charging device 1 refers to a device that can charge mobile devices within a certain spatial range without the aid of charging cables. During wireless charging, the transmitting module in wireless charging device 1 and the receiving module in the mobile device sense and generate an induced current, which is converted into an electromagnetic wave signal. After the electromagnetic wave signal is transmitted from the transmitting module, the receiving module in the mobile device demodulates the received electromagnetic wave signal and converts it into electrical energy required for charging the mobile device, thereby achieving charging of the mobile device.

[0037] Wireless charging device 1 typically uses magnetic attraction to fix mobile devices in place, thereby enabling power transfer. The mobile devices can be mobile phones, headphones, etc., and there are no restrictions on their use.

[0038] Please see Figures 1 to 6 The wireless charging device 1 includes a base 10, a sleeve 11, a telescopic rod 12, a charging module 13, and a locking structure 14.

[0039] The sleeve 11 is connected to the base 10. At least a portion of the structure of the sleeve 11 is radially nested around the outer periphery of the telescopic rod 12, and the telescopic rod 12 is axially movable relative to the sleeve 11 in a direction away from the base 10 to increase the height of the wireless charging device 1. The sleeve 11 has at least one locking groove 11a.

[0040] The charging module 13 is located at the end of the telescopic rod 12 away from the sleeve 11 and is used for wireless charging of mobile devices.

[0041] The locking structure 14 is connected to the telescopic rod 12. The locking structure 14 includes a beaded assembly 141. The telescopic rod 12 is used to drive the locking structure 14 to move relative to the sleeve 11 in the height direction. The beaded assembly 141 can be inserted into or pushed into the locking groove 11a to adjust the height of the wireless charging device 1.

[0042] The base 10 provides support for the structure of the wireless charging device 1, enabling it to be placed stably for charging mobile devices. Specifically, the base 10 provides support for the sleeve 11, the telescopic rod 12, and the charging module 13.

[0043] The sleeve 11 is connected to the base 10. Specifically, the sleeve 11 is connected to the top side of the base 10.

[0044] At least a portion of the structure of the sleeve 11 is radially nested around the outer periphery of the telescopic rod 12, meaning that at least a portion of the structure of the sleeve 11 and the telescopic rod 12 are arranged radially and perpendicular to the axial direction of the sleeve 11. That is, the outer diameter of the sleeve 11 is larger than the outer diameter of the telescopic rod 12, and at least a portion of the structure of the sleeve 11 surrounds the circumferential outer side of the telescopic rod 12.

[0045] It is understandable that the axial direction of the sleeve 11 is consistent with the axial direction of the telescopic rod 12 and is parallel to the height direction of the wireless charging device 1.

[0046] The telescopic rod 12 can move axially relative to the sleeve 11 in a direction away from the base 10 to increase the height of the wireless charging device 1. That is, when the height of the wireless charging device 1 is high, the top edge of the telescopic rod 12 is higher than the top edge of the sleeve 11.

[0047] Specifically, when it is necessary to increase the height of the wireless charging device 1, an external force can be used to move the telescopic rod 12 relative to the sleeve 11 along the height direction, thereby causing the locking structure 14 to move along the height direction. At this time, the bead assembly 141 is compressed and retracted. When the locking structure 14 moves to the locking groove 11a, the bead assembly 141 engages with the locking groove 11a, and the bead assembly 141 returns to its original shape and inserts into the locking groove 11a, thus completing the height adjustment. At this time, the sleeve 11 can provide sufficient support for the telescopic rod 12 by providing support for the bead assembly 141, thereby increasing the overall stability of the wireless charging device 1. During this process, the structure of the telescopic rod 12 protruding from the top edge of the sleeve 11 gradually increases, and the overall height of the wireless charging device 1 gradually increases, thereby facilitating the adjustment of the charging height of the mobile device.

[0048] It is understood that the locking groove 11a is a groove with a locking function. When the ball bearing assembly 141 is inserted into the locking groove 11a, the locking structure 14 can make the telescopic rod 12 and the sleeve 11 in a stable state. That is, under this condition, the wireless charging device 1 is in a stable state, thereby realizing the stability of the height adjustment of the wireless charging device 1.

[0049] The locking groove 11a can have a certain length along the axial direction of the sleeve 11. The locking groove 11a can be obtained by thinning part of the inner wall surface of the sleeve 11, thereby reducing the manufacturing difficulty and facilitating mass production.

[0050] It is understandable that in some embodiments of related technologies, the height of the wireless charging device is not adjustable. In other embodiments, height adjustment is achieved by loosening and tightening screws, which is cumbersome and can easily damage the telescopic rod.

[0051] The wireless charging device 1 provided in this application embodiment achieves the engagement of the locking structure 14 and the locking groove 11a by moving the telescopic rod 12 relative to the sleeve 11, so that the wireless charging device 1 has different height states, thereby adapting to different needs. Users can adjust the height of the wireless charging device 1 as needed, so as to have different charging heights. The wireless charging device 1 has high flexibility of use.

[0052] In some embodiments, there are two locking grooves 11a, and the two locking grooves 11a are symmetrically arranged about the axis of the sleeve 11.

[0053] In other words, the bead assembly 141 can cooperate with the symmetrically arranged locking grooves 11a, which can provide support for the bead assembly 141 and the telescopic rod 12 from both sides, thereby increasing the stability of the height adjustment of the wireless charging device 1.

[0054] In some embodiments, please refer to Figure 3 and Figure 4There are multiple beaded ball assemblies 141, which are spaced apart along the height direction and cooperate with the locking groove 11a. Each beaded ball assembly 141 includes two beads, which are symmetrically arranged about the axis of the sleeve 11.

[0055] In other words, multiple bead assemblies 141 can be arranged along the height direction. The two beads of the bead assembly 141 can be respectively arranged in the corresponding locking groove 11a. Multiple beads arranged along the height direction on the same side can cooperate with the same locking groove 11a. In this way, the docking stability is further increased, thereby increasing the stability of the wireless charging device 1 when providing power to the mobile device.

[0056] In some embodiments, please refer to Figure 3 , Figure 4 and Figure 6 The wireless charging device 1 also includes a limiting cylinder 15, which is sleeved on the outer periphery of the telescopic rod 12 away from the locking structure 14. A sleeve 11 is sleeved on the outer periphery of the limiting cylinder 15. The limiting cylinder 15 and the sleeve 11 are connected and there is no relative movement between them. The limiting cylinder 15 can be separably abutted against the top surface of the locking structure 14 to limit the movement of the telescopic rod 12 in the height direction.

[0057] It is understandable that the connection between the limiting cylinder 15 and the sleeve 11 and the absence of relative movement between them means that when the telescopic rod 12 and the locking structure 14 move along the height direction, the limiting cylinder 15 does not move with the telescopic rod 12, and the relative position between the limiting cylinder 15 and the sleeve 11 does not change.

[0058] The limiting sleeve 15 can be separably abutted against the top surface of the locking structure 14, thereby stopping the locking structure 14 and restricting its movement to the top side. This keeps the movement of the telescopic rod 12 and the locking structure 14 within a reasonable range, preventing them from coming off the sleeve 11 and increasing the structural reliability of the wireless charging device 1.

[0059] There are no restrictions on the method by which there is no relative movement between the limiting cylinder 15 and the sleeve 11.

[0060] In some embodiments, please refer to Figure 2 and Figure 6 The outer periphery of the limiting cylinder 15 is provided with a protrusion 151, and the sleeve 11 is provided with a connecting hole 11b, through which the protrusion 151 passes.

[0061] In other words, in this embodiment, the limiting cylinder 15 and the sleeve 11 are connected by the cooperation of the protrusion 151 and the connecting hole 11b. Under this condition, the limiting cylinder 15 and the sleeve 11 are fixedly engaged, and there will be no relative movement or relative rotation between the limiting cylinder 15 and the sleeve 11, so that the position of the limiting cylinder 15 remains fixed.

[0062] In this embodiment, the engagement between the protrusion 151 and the connecting hole 11b does not require the use of fasteners such as screws, making assembly convenient, reducing assembly steps, and also reducing damage to the telescopic rod 12 caused by fasteners such as screws.

[0063] In some embodiments, please refer to Figure 3 and Figure 5 The locking structure 14 includes a cylindrical portion 142, which is sleeved on the outer periphery of the end of the telescopic rod 12 away from the charging module 13. A sleeve 11 is sleeved on the outer periphery of the cylindrical portion 142. A portion of the bead assembly 141 protrudes from the outer periphery of the cylindrical portion 142. At least one groove 142a is formed on the outer periphery of the cylindrical portion 142. At least one first rib 111 is provided on the inner wall surface of the sleeve 11, and the first rib 111 passes through the groove 142a.

[0064] Specifically, the limiting cylinder 15 can be separably abutted against the top surface of the cylinder 142 to limit the movement of the locking structure 14 as the telescopic rod 12 moves.

[0065] In this embodiment, the cooperation between the sliding groove 142a and the first protruding rib 111 serves two purposes. First, it facilitates the guidance of the locking structure 14 within the sleeve 11 during assembly. As the locking structure 14 moves with the telescopic rod 12, the cooperation between the sliding groove 142a and the first protruding rib 111 provides guidance, increasing the reliability of movement. Second, the sliding groove 142a and the first protruding rib 111 also restrict the rotation of the locking structure 14 relative to the sleeve 11, ensuring a non-rotational engagement between the locking structure 14 and the sleeve 11. There is no relative rotation between the locking structure 14 and the sleeve 11; only the movement of the locking structure 14 relative to the sleeve 11 occurs, increasing the reliability of the height adjustment of the wireless charging device 1.

[0066] In some embodiments, please refer to Figure 3 and Figure 5 The outer periphery of the limiting cylinder 15 is formed with a positioning groove 15a, and the inner wall surface of the sleeve 11 is provided with a second protruding rib 112. The second protruding rib 112 is connected to the first protruding rib 111 and is located on the top side of the first protruding rib 111. The second protruding rib 112 passes through the positioning groove 15a.

[0067] In this embodiment, the second protruding rib 112 and the positioning groove 15a are used to position the assembly of the limiting cylinder 15, thereby making the limiting cylinder 15 and the sleeve 11 accurately dock, which facilitates the engagement of the protruding post 151 and the connecting hole 11b without the need for additional adjustment.

[0068] The second rib 112 is connected to the first rib 111, and the second rib 112 and the first rib 111 can be integrally formed. In this way, the locking structure 14 and the limiting cylinder 15 can be positioned by a single structure, which increases the structural simplicity and reduces the manufacturing difficulty of the sleeve 11.

[0069] In some embodiments, please refer to Figure 5 Part of the top wall of the sleeve 11 is recessed to form an abutment surface 11c, and the side of the limiting cylinder 15 away from the locking structure 14 abuts against the abutment surface 11c.

[0070] In other words, after the sleeve 11 and the limiting cylinder 15 are connected, the limiting cylinder 15 is set in the top side area of ​​the sleeve 11, and the end of the limiting cylinder 15 away from the locking structure 14 abuts against the abutting surface 11c. That is, the limiting cylinder 15 can be supported by the abutting surface 11c of the sleeve 11, thereby increasing the stability of the setting of the limiting cylinder 15 and reducing the probability of the limiting cylinder 15 shaking and shifting.

[0071] In some embodiments, please refer to Figure 5 Along the radial direction of the sleeve 11, the size of the second rib 112 is smaller than that of the first rib 111, and a stepped structure 113 is formed at the junction of the two. The bottom end face of the limiting sleeve 15 is supported by the stepped structure 113.

[0072] In this embodiment, the bottom end face of the limiting cylinder 15 is supported by the stepped structure 113, which can further increase the stability of the limiting cylinder 15. The position of the limiting cylinder 15 is fixed, which facilitates the limitation of the movement of the telescopic rod 12.

[0073] In the embodiment where the limiting cylinder 15 abuts against the abutment surface 11c on the side away from the locking structure 14, the bottom end face of the limiting cylinder 15 is supported by the step structure 113. The combination of the step structure 113 and the abutment surface 11c can further increase the reliability of the setting of the limiting cylinder 15, and the sleeve 11 can provide reliable support and fixation for both ends of the limiting cylinder 15 along the axial direction.

[0074] In some embodiments, please refer to Figure 2 The telescopic rod 12 includes a rod portion 121 and a connector 122. The telescopic rod 12 is connected to the charging module 13 through the connector 122. The charging module 13 can rotate circumferentially and / or swing up and down relative to the telescopic rod 12.

[0075] In other words, the telescopic rod 12 moves in the height direction through the rod part 121, and cooperates with the charging module 13 through the connector 122 to adjust the charging height.

[0076] Here, the charging module 13 can rotate circumferentially and / or swing up and down relative to the telescopic rod 12, including three cases.

[0077] First configuration: The charging module 13 can rotate circumferentially relative to the telescopic rod 12. In this case, the circumferential position of the charging module 13 can be adjusted, thereby facilitating charging.

[0078] The second type: The charging module 13 can swing up and down relative to the telescopic rod 12. In this case, the charging module 13 can swing upward or downward at a certain angle relative to the telescopic rod 12 to adjust the charging angle. For example, the charging module 13 can swing upward to be perpendicular to the axis of the telescopic rod 12 to charge the mobile device.

[0079] The third type: the charging module 13 can rotate circumferentially relative to the telescopic rod 12, and can also swing up and down relative to the telescopic rod 12. That is to say, the charging module 13 can adjust both its circumferential position and its charging angle.

[0080] In this embodiment, while the overall height of the wireless charging device 1 can be adjusted, the charging module 13 can also rotate circumferentially and / or swing up and down relative to the telescopic rod 12 to adjust the circumferential position and / or charging angle, which can further increase the flexibility of the wireless charging device 1 and enhance the user experience.

[0081] In some embodiments, the surfaces of the contact points of the connector 122 and the charging module 13 are formed as spherical surfaces, so that the charging module 13 can rotate circumferentially and swing up and down relative to the telescopic rod 12.

[0082] It should be noted that the shape of the connector 122 can be a spherical structure, or a combination of a spherical structure and other structures.

[0083] In this embodiment, the spherical engagement between the connector 122 and the charging module 13 enables the charging module 13 to rotate circumferentially and swing up and down relative to the telescopic rod 12, resulting in a simple structure and convenient operation.

[0084] In some embodiments, the charging module 13 includes a housing 131 and a charging module disposed within the housing 131. The housing 131 is connected to the end of the telescopic rod 12 away from the sleeve 11. The charging module 13 also includes a magnet disposed within the housing 131 for adsorbing and engaging with the mobile device so that the charging module can transmit electrical energy to the mobile device.

[0085] Specifically, housing 131 is used to connect to telescopic rod 12 and to provide installation space and protection for charging module and magnet.

[0086] Specifically, the mobile device can also be equipped with a magnet to achieve magnetic attraction with the charging module 13. When charging is required, the mobile device is magnetically attached to the charging module 13. The charging module may include a transmitting coil and a transmitting circuit board, and the mobile device includes a receiving coil and a receiving circuit board. The transmitting circuit board is electrically connected to the transmitting coil, enabling the transmitting coil to emit electromagnetic signals. The transmitting coil generates a changing magnetic field, and the receiving coil generates an induced current through electromagnetic induction, receiving the electromagnetic signals from the transmitting coil. The receiving circuit board is electrically connected to the receiving coil, thereby receiving electrical energy and outputting electrical energy to the mobile device, achieving wireless power supply.

[0087] It is understandable that a battery module may also be installed inside the housing 131, which is connected to the transmitting circuit board to provide power to the transmitting coil.

[0088] In some embodiments, the charging module 13 further includes a heat sink disposed within the housing 131 for dissipating heat from the charging module.

[0089] In this embodiment, the heat sink can dissipate heat from the charging module, thereby reducing temperature rise and improving charging reliability.

[0090] In some embodiments, the wireless charging device 1 further includes a wireless power supply module disposed within the base 10.

[0091] In other words, the mobile device can also be placed on the base 10 and powered by the wireless power supply module inside the base 10. The composition of the wireless power supply module can refer to the charging module mentioned above, and there are no restrictions here.

[0092] For example, the charging module 13 can wirelessly charge a mobile phone, and the earphones can be placed on the base 10 for wireless charging.

[0093] In this embodiment, the wireless power supply module enables multiple mobile devices to be wirelessly powered simultaneously by one wireless charging device 1, further increasing the flexibility of the wireless charging device 1 and enhancing the user experience.

[0094] In the description of this application, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the embodiments of this application. In this application, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine different embodiments or examples described in this application, as well as features of different embodiments or examples.

[0095] The above description is merely a preferred embodiment of this application and is not intended to limit the application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A wireless charging device, characterized in that, include: Base; The sleeve is connected to the base; A telescopic rod, wherein at least a portion of the sleeve is radially nested around the outer periphery of the telescopic rod, and the telescopic rod is axially movable relative to the sleeve in a direction away from the base to increase the height of the wireless charging device, the sleeve having at least one locking groove; A charging module is located at the end of the telescopic rod away from the sleeve, and is used for wireless charging of mobile devices; A locking structure is connected to the telescopic rod. The locking structure includes a beaded assembly. The telescopic rod is used to drive the locking structure to move relative to the sleeve in the height direction. The beaded assembly can be inserted into or pushed into the locking groove to adjust the height of the wireless charging device.

2. The wireless charging device according to claim 1, characterized in that, The number of locking grooves is two, and the two locking grooves are symmetrically arranged about the axis of the sleeve; And / or, the number of the beaded components is multiple, the multiple beaded components are spaced apart along the height direction and cooperate with the locking groove, wherein each beaded component includes two beads, and the two beads are symmetrically arranged about the axis of the sleeve.

3. The wireless charging device according to claim 1, characterized in that, The wireless charging device further includes a limiting cylinder, which is sleeved on the outer periphery of the telescopic rod on the side away from the locking structure. The sleeve is sleeved on the outer periphery of the limiting cylinder. The limiting cylinder and the sleeve are connected and there is no relative movement between them. The limiting cylinder can detachably abut against the top surface of the locking structure to limit the movement of the telescopic rod in the height direction.

4. The wireless charging device according to claim 3, characterized in that, The outer periphery of the limiting cylinder is provided with a protruding post, and the sleeve is provided with a connecting hole, through which the protruding post passes.

5. The wireless charging device according to claim 3, characterized in that, The locking structure includes a cylindrical portion, which is sleeved on the outer periphery of the end of the telescopic rod away from the charging module. A sleeve is sleeved on the outer periphery of the cylindrical portion. A portion of the bead assembly protrudes from the outer periphery of the cylindrical portion. At least one groove is formed on the outer periphery of the cylindrical portion. At least one first rib is provided on the inner wall surface of the sleeve, and the first rib passes through the groove.

6. The wireless charging device according to claim 5, characterized in that, The outer periphery of the limiting cylinder is formed with a positioning groove, and the inner wall surface of the sleeve is provided with a second protruding rib. The second protruding rib is connected to the first protruding rib and is located on the top side of the first protruding rib. The second protruding rib passes through the positioning groove.

7. The wireless charging device according to claim 6, characterized in that, The top wall of the sleeve is recessed to form a contact surface, and the side of the limiting cylinder away from the locking structure abuts against the contact surface; And / or, along the radial direction of the sleeve, the size of the second rib is smaller than the size of the first rib, and a stepped structure is formed at the junction of the two, with the bottom end face of the limiting cylinder supported by the stepped structure.

8. The wireless charging device according to claim 1, characterized in that, The telescopic rod includes a rod section and a connector. The telescopic rod is connected to the charging module through the connector. The charging module is capable of rotating circumferentially and / or swinging up and down relative to the telescopic rod.

9. The wireless charging device according to claim 8, characterized in that, The surfaces of the parts where the connector and the charging module come into contact are formed as spherical surfaces, so that the charging module can rotate circumferentially and swing up and down relative to the telescopic rod.

10. The wireless charging device according to any one of claims 1-9, characterized in that, The wireless charging device also includes a wireless power supply module, which is disposed inside the base.

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