Wireless charging device

Abstract

Provided in the present invention is a wireless charging device, comprising: a base portion; a first support portion, the first support portion being connected to the base portion, and the first support portion comprising a first wireless charging module; a second support portion, the second support portion being connected to the first support portion, and the second support portion comprising a second wireless charging module; and a connection assembly, the connection assembly connecting the second support portion to the first support portion, and the connection assembly being configured to allow the second support portion to rotate relative to the first support portion and to allow the second support portion to move relative to the first support portion, such that the second support portion can move towards the first support portion and move away from the first support portion. The second support portion can rotate and move relative to the first support portion, such that enough space can be provided for a portable electronic device; and after charging is completed, the second support portion can return to an initial position, such that the wireless charging device has a relatively small thickness and is convenient to carry and store.

Description

Wireless charging device Technical Field

[0001] The present invention relates to a wireless charging device, and in particular to a wireless charging device capable of charging a variety of portable electronic devices. Background Art

[0002] Some existing wireless charging stations can charge portable electronic devices such as mobile phones, headphones, and watches. To ensure that these devices can charge simultaneously without interference, these stations require ample space for each device. While these stations meet basic requirements, there is still room for improvement, particularly in the area of ​​compact charging stations.

[0003] Summary of the Invention

[0004] Therefore, the present invention provides a wireless charging device to solve the above problems.

[0005] In order to solve the above technical problems, the present invention provides a wireless charging device, comprising a base; a first support portion, which is connected to the base and includes a first wireless charging module; a second support portion, which is connected to the first support portion and includes a second wireless charging module; and a connecting component, which connects the second support portion to the first support portion, and the connecting component is configured to allow the second support portion to rotate relative to the first support portion, and allow the second support portion to move relative to the first support portion, so that the second support portion can move toward the first support portion and away from the first support portion.

[0006] Optionally, the connecting assembly is configured to allow the second supporting portion to gradually move away from the first supporting portion during rotation from an initial position to a first extended position.

[0007] Optionally, the connecting assembly is configured to allow the second support portion to maintain a constant distance from the first support portion during the process of rotating from the first extended position to a second extended position.

[0008] Optionally, the connecting assembly includes a fixed column, a rotating body and a movable pin, the fixed column is fixed to the first support part, the rotating body is fixed to the second support part, the rotating body is provided with a receiving hole, the fixed column is received in the receiving hole, the rotating body can rotate relative to the fixed column, the movable pin is fixed to the rotating body, one end of the movable pin protrudes from the inner side surface of the receiving hole, the side surface of the fixed column is provided with a first guide groove, the first guide groove is inclined relative to the axis of the fixed column, the end of the movable pin is received in the first guide groove and can move along the first guide groove.

[0009] Optionally, a second guide groove communicating with the first guide groove is further provided on the side surface of the fixing column, and the second guide groove is parallel to the end surface of the fixing column connected to the first supporting portion.

[0010] Optionally, a third guide groove is further provided on the side of the fixing column, and the connecting assembly also includes a spring-loaded ball. The third guide groove has the same shape as the first guide groove. The spring-loaded ball protrudes from the inner side surface of the receiving hole and is received in the third guide groove. A plurality of pits are provided in the third guide groove. The spring-loaded ball can move along the third guide groove and can be pushed into the plurality of pits.

[0011] Optionally, the first support portion includes a receiving cavity located on its back side, and the rotating body is partially received in the receiving cavity. The first support portion also includes an elastic member protruding from the inner side surface of the receiving cavity, and the outer side surface of the rotating body is provided with multiple grooves. When the elastic member is inserted into one of the multiple grooves, the rotating body is locked to the first support portion.

[0012] Optionally, the wireless charging device also includes a rubber ring, and a ring groove is provided on the side of the fixed column. The rubber ring is sleeved on the fixed column and accommodated in the ring groove. The rubber ring contacts the inner side surface of the receiving hole of the rotating body to provide damping when the rotating body rotates relative to the fixed column.

[0013] Optionally, the first support portion is rotatably connected to the base, and the base includes a third wireless charging module.

[0014] The technical solution of the present invention has the following advantages: the second support portion can rotate and move relative to the first support portion, thereby providing sufficient space for the portable electronic device. After charging is completed, the second support portion can return to its initial position, so that the wireless charging device has a smaller thickness and is more convenient to carry and store. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] FIG. 1 is a perspective view of a wireless charging device according to an embodiment of the present invention.

[0017] FIG. 2 is a perspective view of a wireless charging device according to an embodiment of the present invention from another angle.

[0018] FIG3 is a perspective view of a wireless charging device according to an embodiment of the present invention, wherein the second supporting portion is rotated to a first extended position.

[0019] FIG4 is a perspective view of a wireless charging device according to an embodiment of the present invention, wherein the second supporting portion is rotated to an initial position.

[0020] FIG5 is a top view of the wireless charging device according to the embodiment of the present invention, wherein the second supporting portion is rotated to an initial position.

[0021] FIG6 is a schematic diagram showing the connection between a power interface and multiple charging modules of a wireless charging device according to an embodiment of the present invention.

[0022] 7 is a perspective view of the wireless charging device according to the embodiment of the present invention when simultaneously charging a first portable electronic device, a second portable electronic device, and a third portable electronic device, wherein the second supporting portion is rotated to the first extended position.

[0023] 8 is a side view of the wireless charging device according to the embodiment of the present invention when simultaneously charging a first portable electronic device, a second portable electronic device, and a third portable electronic device, wherein the second support portion is rotated to the first extended position.

[0024] 9 is a perspective view of the wireless charging device according to the embodiment of the present invention when simultaneously charging a first portable electronic device, a second portable electronic device, and a third portable electronic device, wherein the second support portion is rotated to the second extended position.

[0025] 10 is a perspective view from another angle of the wireless charging device according to the embodiment of the present invention when simultaneously charging a first portable electronic device, a second portable electronic device, and a third portable electronic device, wherein the second support portion is rotated to the second extended position.

[0026] 11 is a perspective view of the wireless charging device according to the embodiment of the present invention when simultaneously charging a first portable electronic device, a second portable electronic device, and a third portable electronic device, wherein the second supporting portion is rotated to the second extended position.

[0027] 12 is a top view of the wireless charging device according to the embodiment of the present invention when simultaneously charging a first portable electronic device, a second portable electronic device, and a third portable electronic device, wherein the second support portion is rotated to the second extended position.

[0028] FIG. 13 is a cross-sectional view of a connecting assembly of a wireless charging device according to an embodiment of the present invention.

[0029] FIG. 14 is an exploded view of a wireless charging device according to an embodiment of the present invention.

[0030] FIG. 15 is an exploded view of the wireless charging device according to the embodiment of the present invention from another angle.

[0031] FIG. 16 is an exploded view of the wireless charging device according to the embodiment of the present invention from another angle.

[0032] FIG. 17 is a front view of a fixing post of a wireless charging device according to an embodiment of the present invention.

[0033] FIG. 18 is a right side view of a fixing post of a wireless charging device according to an embodiment of the present invention.

[0034] FIG. 19 is a rear view of a fixing post of a wireless charging device according to an embodiment of the present invention.

[0035] FIG. 20 is a left side view of a fixing post of a wireless charging device according to an embodiment of the present invention.

[0036] FIG21 is a cross-sectional view of a wireless charging device according to an embodiment of the present invention, wherein the second supporting portion is located at an initial position.

[0037] FIG22 is a cross-sectional view of a wireless charging device according to an embodiment of the present invention, wherein the second supporting portion is located at a second extended position. DETAILED DESCRIPTION

[0038] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0039] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0040] Referring to Figures 1 to 4, in one embodiment, a wireless charging device 100 includes a base 10, a first support portion 20, a second support portion 30, and a connecting assembly 40 (see Figure 13). The first support portion 20 is connected to the base 10 and includes a first wireless charging module 21 (see Figure 6). The second support portion 30 is connected to the first support portion 20 and includes a second wireless charging module 31 (see Figure 6). The connecting assembly 40 connects the second support portion 30 to the first support portion 10. The connecting assembly 40 is configured to allow the second support portion 30 to rotate relative to the first support portion 20 and allow the second support portion 30 to move relative to the first support portion 20, such that the second support portion 30 can move toward and away from the first support portion 20.

[0041] With reference to Figures 7 to 12 , with this configuration, the first support portion 20 can wirelessly charge a first portable electronic device 200 (e.g., a mobile phone), the second support portion 30 can wirelessly charge a second portable electronic device 300 (e.g., a smartwatch), and the wireless charging device 100 can simultaneously charge both the first and second portable electronic devices 200 and 300. The second support portion 30 can rotate relative to the first support portion 20 to different positions. For example, when the wireless charging device 100 needs to be stored, the second support portion 30 can be rotated to the initial position shown in Figure 4 , where it abuts or nearly abuts the first support portion 20 , as shown in Figure 5 . The second support portion 30 can then be rotated to the first extended position shown in Figure 3 , where it can charge the second portable electronic device 300. The second support portion 30 can also be rotated to the second extended position shown in Figures 1 and 2 , where it can also charge the second portable electronic device 300, as shown in Figures 9 to 12 .

[0042] Comparing the initial position shown in FIG5 with the first and second extended positions shown in FIG8 , FIG10 , and FIG12 , it can be seen that the second support portion 30 not only rotates relative to the first support portion 20 but also translates relative to the first support portion 20. Specifically, in the initial position, the second support portion 30 is in contact with, or nearly in contact with, the first support portion 20. In the first and second extended positions, a gap 101 of width d is formed between the second support portion 30 and the first support portion 20, indicating that the second support portion 30 has translated away from the first support portion 20 by a distance d. This allows the wireless charging device 100 to simultaneously charge both the first and second portable electronic devices 200, 300 without interference. When charging is completed, the second support portion 30 can be rotated to the initial position. At this time, the second support portion 30 is in contact with or nearly in contact with the first support portion 20, so that the wireless charging device 100 has a smaller thickness and is more convenient to carry and store.

[0043] In one embodiment, the base 10 is a substantially flat rectangular parallelepiped that can be rotatably connected to the bottom end of the first support portion 20 and faces the back of the first support portion 20. When the wireless charging device 100 is not in use, the base 10 can be rotated to the folded position shown in Figures 4 and 5. At this time, the base 10 is in contact with or nearly in contact with the first support portion 20, and the wireless charging device 100 as a whole is substantially a flat rectangular parallelepiped. When the wireless charging device 100 is in use, the base 10 can be rotated from the folded position to the unfolded position shown in Figures 1 and 2. At this time, the angle between the base 10 and the first support portion 20 is less than 90 degrees, so that the first support portion 20 is tilted relative to the substantially horizontal base 10.

[0044] A power interface 11 is provided on the side of the base 10 (see Figures 2 and 6), and the power interface 11 can be connected to a power socket via a power cable. Referring to Figure 6, in one embodiment, a third wireless charging module 12 is provided in the base 10, and the first wireless charging module 21, the second wireless charging module 31 and the third wireless charging module 12 are all electrically connected to the power interface 11. The first wireless charging module 21, the second wireless charging module 31 and the third wireless charging module 12 can be based on the inductive energy transmission technology according to the Qi standard, or can be based on the resonant magnetic coupling wireless energy transmission technology based on the Rezence standard. The above-mentioned wireless charging standards or other publicly available wireless charging standards are all known and will not be described in detail here. One or more magnets are positioned near the first, second, and third wireless charging modules 21, 31, and 12, allowing the first, second, and third portable electronic devices 200, 300, and 400 (e.g., earphone charging cases) to be attached to the first, second, and base portions 20, 30, and 10, respectively. The wireless charging modules included in the first, second, and third portable electronic devices 200, 300, and 400, respectively, are based on the same wireless charging standard as the first, second, and third wireless charging modules 21, 31, and 12. As such, when the first, second, and third portable electronic devices 200, 300, and 400 are attached to the first, second, and base portions 20, 30, and 10, power is wirelessly transferred to them.

[0045] In one embodiment, the first support portion 20 is substantially a flat rectangular parallelepiped, and the second support portion 30 is connected to the back of the first support portion 20 and close to the top of the second support portion 30. The length of the second support portion 30 is substantially equal to the width of the first support portion 20.

[0046] 13 to 16 , the connecting assembly 40 includes a fixed column 50, a rotating body 60 and a movable pin 70. The fixed column 50 is fixed to the first support portion 20, the rotating body 60 is fixed to the second support portion 30, the rotating body 60 is provided with a receiving hole 61, the fixed column 50 is received in the receiving hole 61, the rotating body 60 can rotate relative to the fixed column 50, the movable pin 70 is fixed to the rotating body 60, one end 71 of the movable pin 70 protrudes from the inner side surface 62 of the receiving hole 61, the side surface 51 of the fixed column 50 (see FIG. 17 ) is provided with a first guide groove 52 (see FIG. 17 ), the first guide groove 52 is inclined relative to the axis L of the fixed column 50, the end 71 of the movable pin 70 is received in the first guide groove 52 and can move along the first guide groove 52.

[0047] Referring to Figure 17 , the fixed post 50 is a cylindrical rotating body, with one end face 53 of the fixed post 50 fixed to the back side of the first support portion 20. The starting point 521 of the first guide groove 52 is adjacent to the end face 53. The first guide groove 52 extends from the starting point 521 along the side face 51 of the fixed post 50, away from the end face 53, to an end point 522. When the second support portion 30 is in the initial position shown in Figure 4 , the end 71 of the movable pin 70 is located at the starting point 521 of the first guide groove 52 (see Figures 13 and 21 ). When the second support portion 30 is rotated by the user, the end 71 of the movable pin 70 moves along the first guide groove 52. Since the first guide groove 52 is inclined relative to the axis L of the fixed column 50, and the axis L of the fixed column 50 is also the rotation axis of the rotating body 60, the end 71 of the movable pin 70 moves along the first guide groove 52, causing the rotating body 60 to gradually move away from the first support portion 20 along the axis L, thereby driving the second support portion 30 to translate and move away from the first support portion 20.

[0048] In one embodiment, the starting point 521 and the ending point 522 of the first guide slot 52 are 90 degrees apart in the circumferential direction. That is, when the end 71 of the movable pin 70 moves along the first guide slot 52 from the starting point 521 to the ending point 522, the rotating body 60 rotates 90 degrees relative to the fixed post 50. In other words, when the end 71 of the movable pin 70 moves along the first guide slot 52 from the starting point 521 to the ending point 522, the second support portion 30 rotates 90 degrees relative to the first support portion 20, from the initial position shown in FIG. 4 to the first extended position shown in FIG. 3 and FIG. 7 At this point, the second support portion 30 is substantially vertical and extends upward from the top end of the first support portion 20. At this time, the second portable electronic device 300 can be adsorbed on the second supporting portion 30 (see Figures 7 and 8), and since the second supporting portion 30 is translated a distance away from the first supporting portion 20, there is sufficient space between the surface where the second supporting portion 30 contacts the second portable electronic device 300 and the surface where the first supporting portion 20 contacts the first portable electronic device 200, so that the second portable electronic device 300 will not interfere with the first portable electronic device 200, regardless of whether the first portable electronic device 200 is placed vertically or horizontally.

[0049] It can be seen from the above description that, through the connecting assembly 40 , the second support portion 30 gradually moves away from the first support portion 20 during the process of rotating from the initial position to the first extended position.

[0050] Referring to Figure 13 , the rotating body 60 is cylindrical, with a receiving hole 61 extending through both ends of the rotating body 60. The diameter of the receiving hole 61 is equal to or slightly larger than the diameter of the side surface 51 of the fixed column 50. In one embodiment, the rotating body 60 further includes a through hole 64 extending from its outer side surface 63 to the inner side surface 62 of the receiving hole 61. The movable pin 70 is received in the through hole 64, with the end 71 of the movable pin 70 protruding from the inner side surface 62 of the receiving hole 61.

[0051] The movable pin 70 is a cylinder with a diameter comparable to the width of the first guide slot 52 , so that the rotating body 60 does not move relative to the fixed post 50 along the axis L of the fixed post 50 when not rotating.

[0052] Referring to Figure 17, in one embodiment, the side surface 51 of the fixed column 50 is further provided with a second guide groove 54 that communicates with the first guide groove 52. The second guide groove 54 is parallel to the end surface 53 of the fixed column 50 connected to the first support portion 20. Because the end surface 53 is parallel to the back surface of the first support portion 20, the second guide groove 54 is also parallel to the back surface of the first support portion 20. Therefore, when the end 71 of the movable pin 70 moves from the first guide groove 52 to the second guide groove 54, the movement of the end 71 of the movable pin 70 in the second guide groove 54 will not cause the rotating body 60 to move along the axis L of the fixed column 50. In other words, the distance between the second support portion 30 and the first support portion 20 remains unchanged.

[0053] Referring to Figures 17 and 18 , the second guide groove 54 intersects the first guide groove 52 at an end point 522. The second guide groove 54 extends from the end point 522 to an end point 541. In one embodiment, the end point 522 and the end point 541 are 90 degrees apart in the circumferential direction. That is, when the end 71 of the movable pin 70 moves along the second guide groove 54 from the end point 522 to the end point 541 (see Figure 22 ), the rotating body 60 rotates 90 degrees relative to the fixed post 50. In other words, when the end 71 of the movable pin 70 moves along the second guide groove 54 from the end point 522 to the end point 541, the second support portion 30 rotates 90 degrees relative to the first support portion 20, from the first extended position shown in Figures 3 and 7 to the second extended position shown in Figures 1 , 9 , and 11 . At this point, the second support portion 30 is substantially horizontal and extends from a side surface of the first support portion 20. At this time, the second portable electronic device 300 can be adsorbed on the second supporting portion 30, and since the second supporting portion 30 and the first supporting portion 20 are spaced a distance apart from each other, there is sufficient space between the surface where the second supporting portion 30 contacts the second portable electronic device 300 and the surface where the first supporting portion 20 contacts the first portable electronic device 200, so that the second portable electronic device 300 will not interfere with the first portable electronic device 200, regardless of whether the first portable electronic device 200 is placed vertically or horizontally.

[0054] As can be seen from the above description, through the connection assembly 40 , the distance between the second support portion 30 and the first support portion 20 remains unchanged during the process of rotating from the first extended position to the second extended position.

[0055] In other embodiments, the first guide slot 52 extends parallel to the axis L of the fixing post 50 and is perpendicular to the second guide slot 54. In this embodiment, to charge the second portable electronic device 300 using the second support portion 30, the user can pull the second support portion 30 to move the end 71 of the movable pin 70 along the first guide slot 52 to the end point 522. At this point, the second support portion 30 is translated a distance relative to the first support portion 20, away from the first support portion 20. The user can then rotate the second support portion 30 to a desired position, allowing the second support portion 30 to charge the second portable electronic device 300. In the previous embodiment, the rotation and translation of the second support portion 30 relative to the first support portion 20 occurred simultaneously. In this embodiment, the second support portion 30 is first translated a distance relative to the first support portion 20 before being rotated to the desired position.

[0056] Referring to Figures 13, 19 and 20, in one embodiment, the side 51 of the fixing column 50 is further provided with a third guide groove 55, and the connecting assembly 40 also includes a spring-loaded ball 80. The third guide groove 55 has the same shape as the first guide groove 52. The spring-loaded ball 80 protrudes from the inner side surface 62 of the receiving hole 61 of the rotating body 60 and is received in the third guide groove 55. A plurality of pits 56 are provided in the third guide groove 55. The spring-loaded ball 80 can move along the third guide groove 55 and can be pushed into the plurality of pits 56.

[0057] In one embodiment, the rotating body 60 further includes a through hole 65 (see FIG. 15 ) extending from the outer side 63 thereof to the inner side 62 of the receiving hole 61. The spring-loaded ball 80 passes through the through hole 65 and protrudes from the inner side 62 of the receiving hole 61. Referring to FIG. 13 , the spring-loaded ball 80 includes a ball 81, a spring 82, and a connecting portion 83. The two ends of the spring 82 are connected to the ball 81 and the connecting portion 83, respectively. The spring 82 and the connecting portion 83 are received in the through hole 65, and the spring 82 is in a compressed state.

[0058] In one embodiment, the side surface 51 of the fixed post 50 is further provided with a fourth guide groove 57 that communicates with the third guide groove 55. The fourth guide groove 57 is parallel to the end surface 53 of the fixed post 50 connected to the first support portion 20. In the state shown in FIG18 , the starting point 551 of the third guide groove 55 is directly below the end point 541 of the second guide groove 54. In the state shown in FIG20 , the end point 571 of the fourth guide groove 57 is directly above the starting point 521 of the first guide groove 52. The starting point 521 of the first guide groove 52 and the starting point 551 of the third guide groove 55 are circumferentially spaced 180 degrees apart. As can be seen from FIG21 , when the end 71 of the movable pin 70 is located at the starting point 521 of the first guide groove 52, the ball 81 of the spring-loaded ball 80 is located at the starting point 551 of the third guide groove 55. As can be seen from FIG. 22 , when the end 71 of the movable pin 70 is located at the end point 541 of the second guide groove 54, the ball 81 of the spring-loaded ball 80 is located at the end point 571 of the fourth guide groove 57. The end 71 of the movable pin 70 and the ball 81 of the spring-loaded ball 80 move simultaneously. That is, when the end 71 of the movable pin 70 moves from the starting point 521 along the first guide groove 52, the ball 81 of the spring-loaded ball 80 moves from the starting point 551 along the third guide groove 55. When the end 71 of the movable pin 70 moves to the end point 541 of the second guide groove 54, the ball 81 of the spring-loaded ball 80 moves to the end point 571 of the fourth guide groove 57.

[0059] In one embodiment, there are three recesses 56. The first recess 56 is located at the starting point 551 of the third guide groove 55. The second recess 56 is located at the intersection of the third guide groove 55 and the fourth guide groove 57. When the ball 81 of the spring-loaded ball 80 is located in the second recess 56, the end 71 of the movable pin 70 is located at the end point 522 of the first guide groove 52. The third recess 56 is located at the end point 571 of the fourth guide groove 57. The cooperation between the ball 81 of the spring-loaded ball 80 and the recesses 56 can lock the rotating body 60 to the fixed column 50, preventing the rotating body 60 from easily moving without external force from the user. By providing the recesses 56 at the three aforementioned positions, when the second support portion 30 is rotated to the initial position shown in FIG. 4 , the first extended position shown in FIG. 3 , and the second extended position shown in FIG. 1 , the ball 81 of the spring-loaded ball 80 is precisely received in the three recesses 56 , respectively, thereby facilitating the second support portion 30 to remain in the initial position, the first extended position, and the second extended position. Furthermore, when the ball 81 of the spring-loaded ball 80 is pushed into the recess 56 by the spring 82 , a knocking sound is produced, providing feedback to the user that the second support portion 30 has been rotated to the initial position, the first extended position, or the second extended position.

[0060] Referring to Figure 14 , in one embodiment, the wireless charging device 100 further includes a rubber ring 90. The side surface 51 of the fixing post 50 is further provided with an annular groove 58. The rubber ring 90 is positioned over the fixing post 50 and received within the annular groove 58. The rubber ring 58 contacts the inner surface 62 of the receiving hole 61 of the rotating body 60 to provide damping when the rotating body 60 rotates relative to the fixing post 50. In the aforementioned initial position, first extended position, and second extended position, this damping, combined with the interaction between the ball 81 of the spring-loaded ball 80 and the recess 56, stably maintains the second support portion 30 in these three positions. When the second support portion 30 is rotated to a position other than the three aforementioned positions, the damping maintains the second support portion 30 in that position, allowing it to charge a second portable electronic device in this position.

[0061] In one embodiment, the first support portion 20 includes a receiving cavity 22 on its back side, in which the rotating body 60 is partially received. The first support portion 20 also includes an elastic member 23 protruding from the inner side of the receiving cavity 22. The outer side of the rotating body 60 is provided with a plurality of grooves 66 extending along its length (see Figures 13 and 16). When the outer side of the rotating body 60 contacts the elastic member 23, the elastic member 23 is subjected to pressure and elastically deforms. When the elastic member 23 engages one of the plurality of grooves 66, it rebounds, thereby locking the rotating body 60 to the first support portion 20. The cooperation between the grooves 66 and the elastic member 23, combined with the damping provided by the rubber ring 58 and the cooperation between the ball 81 of the spring-loaded ball 80 and the recess 56, can maintain the second support portion 30 in a desired position even when the second portable electronic device 300 is attracted to the second support portion 30.

[0062] Referring to Figures 14 to 16, the fixing column 50 can be fixed to the receiving cavity 22 of the first support portion 20 by screws. The receiving cavity 22 is provided with an anti-cracking column 24, which is received in the receiving hole 59 on the end surface 53 of the fixing column 50, and is used to ensure that the fixing column 50 is fixed to the first support portion 20 in the correct posture. The second support portion 30 includes a first shell 32 and a second shell 33 connected to each other. The rotating body 60 is partially received in the space defined by the first shell 32 and the second shell 33, and the end surface 67 of the rotating body 60 facing away from the first support portion 20 is fixed to the first shell 32 by screws. The first shell 32 is provided with an anti-cracking column 321, which is received in the receiving hole 68 on the end surface 67 of the rotating body 60, and is used to ensure that the rotating body 60 is fixed to the first shell 32 in the correct posture.

[0063] 21 , in one embodiment, the fixing post 50 further includes through holes 501 extending through both ends thereof, the through holes 501 allowing power lines / signal lines to pass through to electrically connect the electronic components in the second support portion 30 with the electronic components in the first support portion 20 and / or the base 10 .

[0064] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A wireless charging device, characterized in that, comprising: a base; a first support portion connected to the base, the first support portion including a first wireless charging module; a second support portion connected to the first support portion, the second support portion including a second wireless charging module; and a connecting component connecting the second support portion to the first support portion, the connecting component being configured to allow the second support portion to rotate relative to the first support portion and to allow the second support portion to move relative to the first support portion such that the second support portion can move towards and away from the first support portion.

2. The wireless charging device according to claim 1, characterized in that, the connecting component is configured to allow the second support portion to gradually move away from the first support portion during the process of rotating from an initial position to a first extended position.

3. The wireless charging device according to claim 2, characterized in that, the connecting component is configured to allow the distance between the second support portion and the first support portion to remain unchanged during the process of rotating from the first extended position to a second extended position.

4. The wireless charging device according to claim 2, characterized in that, the connecting component includes a fixing post, a rotating body and a moving pin. The fixing post is fixed to the first support portion, the rotating body is fixed to the second support portion, the rotating body is provided with a receiving hole, the fixing post is received in the receiving hole, the rotating body can rotate relative to the fixing post, the moving pin is fixed to the rotating body, one end of the moving pin protrudes from the inner side surface of the receiving hole, a first guiding groove is provided on the side surface of the fixing post, the first guiding groove is inclined relative to the axis of the fixing post, and the end of the moving pin is received in the first guiding groove and can move along the first guiding groove.

5. The wireless charging device according to claim 4, characterized in that, a second guiding groove communicating with the first guiding groove is further provided on the side surface of the fixing post, and the second guiding groove is parallel to the end surface of the fixing post connected to the first support portion.

6. The wireless charging device according to claim 4, characterized in that, a third guiding groove is further provided on the side surface of the fixing post, the connecting component further includes a spring-loaded ball, the third guiding groove has the same shape as the first guiding groove, the spring-loaded ball protrudes from the inner side surface of the receiving hole and is received in the third guiding groove, a plurality of pits are provided in the third guiding groove, and the spring-loaded ball can move along the third guiding groove and can be pushed into the plurality of pits.

7. The wireless charging device according to claim 4, characterized in that, the first support portion includes a receiving cavity on its back side, the rotating body is partially received in the receiving cavity, the first support portion further includes an elastic member protruding from the inner side surface of the receiving cavity, a plurality of grooves are provided on the outer side surface of the rotating body, and when the elastic member is snapped into one of the plurality of grooves, the rotating body is locked to the first support portion.

8. The wireless charging device according to claim 4, characterized in that, Further included is a rubber ring. A ring groove is further provided on the side surface of the fixing column. The rubber ring is sleeved on the fixing column and received in the ring groove. The rubber ring contacts the inner side surface of the receiving hole of the rotating body to provide damping when the rotating body rotates relative to the fixing column.

9. The wireless charging device according to claim 1, wherein, the first support portion is rotatably connected to the base portion, and the base portion includes a third wireless charging module.

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