Wireless charging station

Abstract

The present application relates to a wireless charging stand, including a base, a coil module and a heat sink. The base includes a charging area, which can be used to place electronic devices for wireless charging. The coil module is arranged in the base and covered by the charging area. The heat sink includes a fan, which is connected to the base and can move relative to the base to a first position and a second position. In the first position, the heat sink is superimposed on the charging area, and in the second position, the charging area is exposed and the fan can guide the outside air to flow to the charging area. In the above-mentioned wireless charging stand, when the heat sink is in the first position, the wireless charging stand has a smaller size, thereby improving the portability of the wireless charging stand and facilitating the storage of the wireless charging stand. When the heat sink is in the second position, electronic devices such as smart phones, smart watches, wireless headphones, etc. with wireless charging function can be placed in the charging area for wireless charging. The wireless charging stand can adapt to a variety of models, which improves the convenience of use.

Description

Technical Field

[0001] The present application relates to the technical field of charging bases. Background Art

[0002] Wireless charging stations can be used to charge electronic devices such as mobile terminals. They can be divided into two categories: vertical wireless charging stations and horizontal wireless charging stations. For vertical wireless charging stations, electronic devices are generally placed on the wireless charging station at an angle when charging. Since the coil position of the wireless charging station is relatively fixed, the models that can be adapted to the vertical wireless charging station are relatively limited. For horizontal wireless charging stations, electronic devices are generally placed flat on the wireless charging base when charging. The heat dissipation duct design of the horizontal wireless charging station is relatively complex, and the heat dissipation effect is not good. Summary of the invention

[0003] The embodiment of the present application provides a wireless charging stand, so that the wireless charging stand can be adapted to a variety of models and has a relatively good heat dissipation effect.

[0004] A wireless charging stand, comprising:

[0005] A base, including a charging area, wherein the charging area can be used to place an electronic device for wireless charging;

[0006] A coil module is disposed in the base and covered by the charging area; and

[0007] A heat dissipation box includes a fan, the heat dissipation box is connected to the base and can move relative to the base to a first position and a second position. In the first position, the heat dissipation box is stacked on the charging area. In the second position, the charging area is exposed and the fan can guide external air to flow to the charging area and perform heat exchange with the electronic device.

[0008] In the above-mentioned wireless charging stand, when the heat dissipation box is located in the first position, the wireless charging stand has a smaller size, thereby improving the portability of the wireless charging stand and facilitating the storage of the wireless charging stand. When the heat dissipation box is located in the second position, electronic devices such as smart phones, smart watches, wireless headphones, etc. with wireless charging functions can be placed in the charging area for wireless charging. The wireless charging stand can be adapted to a variety of models, which improves the convenience of use. Since the heat dissipation box is provided with a fan, during the process of wireless charging of the electronic device, the fan can cause the air around the electronic device to flow, so as to facilitate the heat dissipation of the wireless charging stand and the electronic device. The heat dissipation duct of the above-mentioned wireless charging stand is easy to design, has a better heat dissipation effect, and can meet the needs of high-power wireless charging to shorten the wireless charging time.

[0009] In one embodiment, the heat dissipation box is rotatable relative to the base to switch between a first position and a second position.

[0010] In one of the embodiments, one of the heat dissipation box and the base is provided with a rotating shaft, and the other of the heat dissipation box and the base is provided with an axial hole capable of rotatably cooperating with the rotating shaft.

[0011] In one embodiment, the axis of the rotating shaft extends along the thickness direction of the base.

[0012] In one of the embodiments, the rotating shaft is provided with a through hole along the axial direction.

[0013] In one of the embodiments, an air vent is provided at one end of the heat dissipation box on a side close to the base, and in a first position, the air vent faces away from the charging area, and in a second position, the air vent faces the charging area.

[0014] In one of the embodiments, two opposite edges of the charging area are respectively provided with support bodies, and the support bodies protrude from the outer surface of the charging area; the heat dissipation box recessed area, when in the first position, the support body is accommodated in the recessed area, and when in the second position, the fan can guide the air at the air outlet to produce relative flow with the air between the two opposite support bodies.

[0015] In one embodiment, the heat dissipation box is movable relative to the base to switch between a first position and a second position.

[0016] In one of the embodiments, supporting bodies are provided at two opposite edges of the charging area, and a boss is provided at one end of the heat dissipation box on the side facing the base, and the boss is provided with an air outlet; when the heat dissipation box switches between the first position and the second position, the boss can move between the two supporting bodies.

[0017] In one of the embodiments, a stop portion is provided at one end of the base, and in a first position, the stop portion is located at the end of the base away from the air outlet, and in a second position, the heat dissipation box abuts against the stop portion to limit the movement range of the heat dissipation box.

[0018] In one embodiment, the wireless charging stand includes a magnetic shielding sheet and a bracket disposed in the base, the coil module is stacked on the magnetic shielding sheet, the magnetic shielding sheet is connected to the bracket, and the bracket is connected to the base.

[0019] In one embodiment, the wireless charging stand includes a circuit board and a heat insulation structure disposed in the base, the heat insulation structure is disposed on a side of the bracket away from the coil module, and the circuit board is disposed on a side of the heat insulation structure away from the coil module.

[0020] In one of the embodiments, a side of the thermal insulation structure facing away from the coil module forms a thermal insulation cavity with the base, and the circuit board is accommodated in the thermal insulation cavity.

[0021] In one of the embodiments, a heat conductor is provided between the circuit board and the base, and the heat conductor can conduct the heat generated by the circuit board to the base. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 A schematic diagram of a heat dissipation box of a wireless charging stand in an embodiment at a first position from a viewing angle;

[0024] Figure 2 for Figure 1 A schematic diagram of another viewing angle of the wireless charging station shown;

[0025] Figure 3 for Figure 1 An exploded view of the wireless charging station shown;

[0026] Figure 4 for Figure 1 A schematic diagram showing a perspective of the heat dissipation box of the wireless charging stand being located at a second position;

[0027] Figure 5 for Figure 4 A schematic diagram of another viewing angle of the wireless charging station shown;

[0028] Figure 6 for Figure 1 A cross-sectional view of the wireless charging station from one perspective;

[0029] Figure 7 for Figure 6 A cross-sectional view of the wireless charging stand from another perspective;

[0030] Figure 8 for Figure 4 A cross-sectional view of the wireless charging station from one perspective;

[0031] Fig. 9 for Figure 8 A cross-sectional view of the wireless charging stand from another perspective;

[0032] Fig.10 for Figure 4An exploded view of one perspective of the wireless charging station shown;

[0033] Fig.11 for Fig.10 An exploded view of another perspective of the wireless charging station shown;

[0034] Fig.12 A schematic diagram of a heat dissipation box of a wireless charging stand in another embodiment at a first position from a viewing angle;

[0035] Fig.13 for Fig.12 A schematic diagram of another viewing angle of the wireless charging station shown;

[0036] Fig.14 for Fig.12 A schematic diagram showing a perspective of the heat dissipation box of the wireless charging stand being located at a second position;

[0037] Fig.15 for Fig.12 An exploded view of one perspective of the wireless charging station shown;

[0038] Fig.16 for Fig.15 An exploded view of another perspective of the wireless charging station shown;

[0039] Fig.17 for Fig.12 A cross-sectional view of the wireless charging station from one perspective;

[0040] Fig.18 for Fig.17 A cross-sectional view of the wireless charging stand from another perspective;

[0041] Fig.19 for Fig.14 A cross-sectional view of the wireless charging station from one perspective;

[0042] Fig. 20 for Fig.19 A cross-sectional view of the wireless charging stand from another perspective;

[0043] Fig.21 for Fig.14 A schematic diagram of another viewing angle of the wireless charging stand is shown. DETAILED DESCRIPTION

[0044] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive.

[0045] refer to Figure 1, Figure 2 and Figure 3 In one embodiment, the wireless charging stand 10 includes a base 100, a coil module 200 and a heat dissipation box 300. The base 100 includes a charging area 110. An electronic device with a wireless charging function (a smart phone, a smart watch, a wireless headset, etc.) can be placed in the charging area 110 and wirelessly charged. The coil module 200 is disposed in the base 100 and is covered by the charging area 110. The heat dissipation box 300 includes a fan 310. The heat dissipation box 300 is connected to the base 100 and can move to a first position and a second position relative to the base 100. Reference Figure 1 and Figure 2 In the first position, the heat dissipation box 300 is overlapped with the charging area 110, and the wireless charging stand 10 has a smaller length dimension. Figure 4 and Figure 5 In the second position, the charging area 110 is exposed and can be used to place electronic devices for wireless charging. The fan 310 can guide the outside air to flow to the charging area 110 and perform heat exchange with the electronic devices to facilitate the heat dissipation of the electronic devices.

[0046] When the heat dissipation box 300 of the wireless charging stand 10 is located in the first position, the wireless charging stand 10 has a smaller size, thereby improving the portability of the wireless charging stand 10 and facilitating the storage of the wireless charging stand 10. When the heat dissipation box 300 is located in the second position, electronic devices such as smart phones, smart watches, wireless headphones, etc. with wireless charging functions can be placed in the charging area 110 for wireless charging. The wireless charging stand 10 can be adapted to a variety of models, which improves the convenience of use. Since the heat dissipation box 300 is provided with a fan 310, during the process of wireless charging of the electronic device, the fan 310 can cause the air around the electronic device to flow, so as to facilitate the heat dissipation of the wireless charging stand 10 and the electronic device. The heat dissipation duct of the wireless charging stand 10 is easy to design, has a better heat dissipation effect, and can meet the needs of high-power wireless charging to shorten the wireless charging time.

[0047] In some embodiments, a circuit board 400 is further provided in the base 100, and the coil module 200 and the fan 310 are electrically connected to the circuit board 400 respectively. The base 100 is provided with an electrical connection interface, which is electrically connected to the circuit board 400, and the electrical connection interface is used to connect an external power supply to power the wireless charging seat 10, so that the wireless charging seat 10 can be used to charge electronic devices. The electrical connection interface can be a USB interface, or a cable with a plug, etc. Further, the base 100 or the heat dissipation box 300 can be provided with an indicator light to indicate the working status of the wireless charging seat 10. Further, a non-slip pad can be provided on one side of the base 100 that is away from the heat dissipation box 300, and the material of the non-slip pad can be silicone or rubber, etc., so that when the wireless charging seat 10 is placed on a support such as a desktop, the wireless charging seat 10 will not slide easily. Of course, in other embodiments, the circuit board 400 can be provided in the heat dissipation box 300 and electrically connected to the fan 310 and the coil module 200, and the electrical connection interface can also be provided in the heat dissipation box 300.

[0048] Furthermore, the wireless charging stand 10 includes a magnetic isolation sheet 500 disposed in the base 100, Figure 6 and Figure 7 , the coil module 200 is stacked on the magnetic isolation sheet 500. The magnetic isolation sheet 500 can be made of ferrite wave absorbing material, which has excellent magnetic conductivity, can increase the magnetic flux of the coil module 200 and reduce the loss of the coil module 200, and can make the magnetic flux lines tightly surround the surrounding area centered on the magnetic isolation sheet 500 to increase the electromagnetic induction intensity and improve the electromagnetic conversion efficiency. Of course, it is understandable that the magnetic isolation sheet 500 can be omitted.

[0049] Further, refer to Figure 8 and Fig. 9 The wireless charging stand 10 includes a bracket 600 connected to the base 100, and the magnetic isolation sheet 500 is arranged on the bracket 600 and supported by the bracket 600. In some embodiments, the side wall and the bottom wall of the base 100 can be made of metal material, for example, the side wall or the bottom wall can be made of aluminum alloy, magnesium alloy, or stainless steel, etc. The bracket 600 can conduct the heat generated by the coil module 200 to the base 100. During the wireless charging process of the electronic device, this setting can conduct part of the heat generated by the coil module 200 to the metal base 100, and dissipate the heat generated by the coil module 200 to the external air through the base 100. In other embodiments, the side wall and the bottom wall of the base 100 can be made of non-metallic materials such as plastic. In this embodiment, the bracket 600 can also improve the stability of the installation of the coil module 200 and the magnetic isolation sheet 500.

[0050] Furthermore, a heat insulation structure 700 is provided in the base 100, and the heat insulation structure 700 is arranged between the coil module 200 and the circuit board 400. Furthermore, the bracket 600 and the heat insulation structure 700 are arranged in the base 100 at intervals, and the material of the heat insulation structure 700 can be plastic, silicone, ceramic, asbestos, glass fiber, etc., and its thermal conductivity is low, so it can effectively reduce the heat conducted from the coil module 200 to the circuit board 400 during wireless charging, so as to prevent the electronic components on the circuit board 400 from being degraded or damaged due to excessive temperature. Further, refer to Figure 8 and Fig. 9 The heat insulation structure 700 is connected to the base 100 and forms a heat insulation cavity 701 with the base 100 on the side away from the coil module 200, and the circuit board 400 is arranged in the heat insulation cavity 701. This arrangement can further prevent the heat generated by the coil module 200 from being transferred to the circuit board 400. The above wireless charging stand 10 can meet the needs of high-power wireless charging to shorten the wireless charging time.

[0051] Of course, in other embodiments, the heat insulation structure 700 may also be plate-shaped or in other structural forms to separate the coil module 200 and the circuit board 400. Further, in an embodiment where the side wall or bottom wall of the base 100 is made of metal, a heat conductor may be provided between the heat insulation structure 700 and the metal base 100, and the heat conductor may be silicone grease or a metal heat conductive sheet, etc., to conduct the heat generated by the circuit board 400 to the base 100, and then dissipate the heat generated by the circuit board 400 into the air through the base 100, so as to further improve the heat dissipation performance of the wireless charging stand 10. Of course, the side wall or bottom wall of the base 100 may be provided with heat dissipation holes to improve the heat dissipation performance of the base 100. Further, another fan may also be provided in the base 100, so as to use another fan to promote the relative flow of air in the base 100 and the outside air for heat exchange, thereby improving the heat dissipation performance of the base 100.

[0052] Also refer to Fig.10 and Fig.11 In some embodiments, the base 100 is roughly rectangular box-shaped, and the heat dissipation box 300 is roughly rectangular box-shaped and similar in shape to the base 100. In the first position, the heat dissipation box 300 is stacked on top of the base 100 and the circumferential surface of the heat dissipation box 300 is substantially flush with the circumferential surface of the base 100, so that the base 100 has better appearance characteristics when the heat dissipation box 300 is in the first position. Of course, in other embodiments, the base 100 can be in other shapes such as a truncated cone, a prism, etc., and the shape of the heat dissipation box 300 can be similar to the shape of the base 100 so that the wireless charging stand 10 has better appearance characteristics when the wireless charging stand 10 is in the first position. Of course, the shape of the heat dissipation box 300 can be different from that of the base 100, for example, the base 100 can be rectangular box-shaped, and the heat dissipation box 300 can be cylindrical, which will not be repeated here.

[0053] In one embodiment, the heat dissipation box 300 can rotate relative to the base 100 to switch between the first position and the second position. Fig.10 and Fig.11 One of the heat dissipation box 300 and the base 100 is provided with a rotating shaft 320, and the other of the heat dissipation box 300 and the base 100 is provided with an axis hole 103 that can be rotatably matched with the rotating shaft 320. The rotating shaft 320 can be inserted into the axis hole 103 to realize the rotational match between the base 100 and the heat dissipation box 300. Fig. 9 In the embodiment of the present application, the axis of the rotating shaft 320 extends along the thickness direction of the base 100, that is, the heat dissipation box 300 can rotate in a horizontal plane to switch between the first position and the second position. Of course, in other embodiments, the axis of the rotating shaft 320 can extend along the width or length direction of the base 100, that is, the heat dissipation box 300 and the base 100 can be opened and closed in a hinge-like manner to achieve the switching of the heat dissipation box 300 between the first position and the second position.

[0054] In the embodiment of the present application, the shaft 320 is formed by the outer wall of the heat dissipation box 300, that is, the side of the heat dissipation box 300 facing the base 100 protrudes and forms a cylindrical shaft 320. This structure makes the shaft 320 easy to process and the heat dissipation box 300 has a relatively simple structure. Of course, in other embodiments, the shaft 320 can be connected to the outer wall of the heat dissipation box 300 by welding, bonding, injection molding, or threaded connection. In this type of embodiment, the shaft 320 can be made of a relatively wear-resistant material, and the heat dissipation box 300 can be made of a low-cost material to save the manufacturing cost of the wireless charging stand 10 and increase the service life of the shaft 320. Of course, in other embodiments, the shaft 320 can also be set on the base 100.

[0055] Further, refer to Figure 7 , Fig. 9 The shaft 320 is provided with a through hole 321 along the axial direction. The through hole 321 can be used to pass the electrical connection line of the fan 310 to electrically connect the fan 310 in the heat dissipation box 300 to the circuit board 400 in the base 100. Of course, the through hole 321 can also be used to pass the electrical connection line of other devices. The through hole 321 of the shaft 320 is arranged to facilitate the arrangement of the electrical connection line of the fan 310, so that the structure of the wireless charging stand 10 is more compact, and the adverse effect of the rotation of the heat dissipation box 300 on the electrical connection line can be reduced.

[0056] refer to Figure 7 , Fig. 9One end of the heat dissipation box 300 is provided with an air outlet 301 on a side close to the base 100. When the air outlet 301 is in the first position, it faces away from the charging area 110. When the air outlet 301 is in the second position, it faces the charging area 110. Fig. 9 In the embodiment of the present application, the other end of the heat dissipation box 300 opposite to the air outlet 301 is provided with a vent hole 303, and the fan 310 can guide the outside air to flow into the heat dissipation box 300 from one of the air outlet 301 and the vent hole 303, and guide the air to flow out of the heat dissipation box 300 from the other of the air outlet 301 and the vent hole 303. Fig. 9 In the embodiment of the present application, when in the second position, the fan 310 can guide the outside air to flow into the heat dissipation box 300 from the vent 303, and guide the air to flow from the vent 301 to the charging area 110 to exchange heat with the air in the space near the charging area 110, thereby dissipating heat for the electronic device being charged. Of course, in other embodiments, when in the second position, the fan 310 can guide the air in the space near the charging area 110 to flow into the heat dissipation box 300 through the vent 301, and guide the air to flow out of the heat dissipation box 300 from the vent 303. This arrangement is also conducive to the heat dissipation of the electronic device and the wireless charging stand 10.

[0057] Of course, in other embodiments, the vent 303 can be set at other positions. For example, the vent 303 can be set at other positions on the circumferential surface of the heat dissipation box 300. Further, in some embodiments, the vent 303 is located on the side of the heat dissipation box 300 facing the base 100. In this embodiment, the vent 303 is shielded and hidden by the base 100 in the first position. This structural setting can prevent dust, water, etc. from easily entering the heat dissipation box 300 through the vent 303, thereby improving the waterproof and dustproof performance of the wireless charging stand 10.

[0058] Further, refer to Fig.10 and Fig.11, the two opposite edges of the charging area 110 are respectively provided with support bodies 800, and the support bodies 800 protrude from the outer surface of the charging area 110. The heat dissipation box 300 is provided with a recessed area 305, and the support body 800 is accommodated in the recessed area 305 in the first position, and the fan 310 can guide the air at the air outlet 301 to generate relative flow with the air between the two opposite support bodies 800 in the second position. Specifically, the support body 800 can be a plastic strip, or a silicone strip or a rubber strip, etc. The charging area 110 is located between the two support bodies 800, and when the heat dissipation box 300 is in the second position, the two support bodies 800 form an open groove-shaped structure at one end away from the heat dissipation box 300. The support body 800 can be used to support electronic devices of relatively large size to prevent the surface of the electronic device from being accidentally scratched, and for electronic devices of relatively large or small size, the support body 800 is conducive to forming a heat dissipation flow channel to facilitate the heat dissipation of the electronic device. In other embodiments, the support body 800 may be formed by the base 100 , that is, the base 100 may extend to form the support body 800 protruding from the charging area 110 .

[0059] Further, refer to Fig.10 In this embodiment, an end of the support body 800 close to the rotating shaft 320 can be provided with a curved surface to prevent the heat dissipation box 300 from interfering with the support body 800 during the rotation relative to the base 100, and when the heat dissipation box 300 is located at the first position, this structure of the support body 800 can shield the recessed area 305 of the heat dissipation box 300, so that the wireless charging stand 10 has better appearance characteristics, such as Figure 1 and Figure 2 Further, in some embodiments, when the heat dissipation box 300 is in the first position, the end of the support body 800 away from the rotation axis 320 is flush with the end of the heat dissipation box 300 away from the rotation axis 320 , and this arrangement can further improve the appearance characteristics of the wireless charging stand 10 .

[0060] For electronic devices such as smart phones and tablet computers with wireless charging function and slightly larger in size, when the electronic device is placed in the charging area 110 for charging, the support body 800 supports the electronic device and allows a gap between the electronic device and the outer surface of the charging area 110. The electronic device can cover the entire charging area 110, and there can be no gap or a very small gap between the electronic device and the support body 800. Fig. 9 During the wireless charging of the electronic device, the fan 310 can supply air from the air outlet 301. After the air flow passes through the gap and performs heat exchange, it flows out from the end of the support body 800 away from the heat dissipation box 300, thereby dissipating heat for the electronic device and the wireless charging stand 10, so as to improve the heat dissipation efficiency of the wireless charging stand 10.

[0061] For electronic devices with wireless charging function and slightly smaller size, such as smart watches, wireless headphones, etc., when the electronic device is placed in the charging area 110 for charging, the electronic device contacts the outer surface of the charging area 110, and an air flow channel can be formed between the periphery of the electronic device and the support body 800. The fan 310 can send air from the air outlet 301, and the air flow flows through the periphery of the electronic device to carry heat and dissipate it into the air. This method can also dissipate heat for the electronic device and the wireless charging stand 10 to improve the heat dissipation efficiency of the wireless charging stand 10. In other embodiments, the support body 800 can be annular, triangular or other shapes, and the support body 800 can be fixedly connected to the charging area 110 by bonding or welding or other connection methods. In other embodiments, the fan 310 can draw air from the air outlet 301 to draw air from the space near the electronic device and the charging area 110 into the heat dissipation box 300, and then flow out of the heat dissipation box 300 through the vent 303. It can be understood that the provision of the support body 800 is not necessary.

[0062] refer to Fig.12 , Fig.13 and Fig.14 In another embodiment, the heat dissipation box 300 can move relative to the base 100 to switch between the first position and the second position. Fig.15 and Fig.16 In this embodiment, the supports 800 at the two opposite edges of the charging area 110 may have a guiding function, and a boss 330 is provided at one end of the heat dissipation box 300 on the side facing the base 100, and the air outlet 301 is provided at the end of the boss 330. During the switching process of the heat dissipation box 300 between the first position and the second position, the boss 330 can move between the two supports 800. In this embodiment, the two oppositely arranged supports 800 can limit the movement of the boss 330 along the width direction of the base 100 to prevent the heat dissipation box 300 from being deflected during the movement. Fig.17 and Fig.18 In this embodiment, in the first position, the boss 330 can be flush with one end of the support body 800, and the other end of the support body 800 can be flush with the end of the heat dissipation box 300 away from the boss 330, so that the wireless charging stand 10 has a better appearance. It can be understood that the arrangement of the boss 330 and the support body 800 is not necessary. For example, the charging area 110 of the base 100 can be concave, and when the heat dissipation box 300 is in the second position, the end of the charging area 110 away from the heat dissipation box 300 has an open gap, so that when the electronic device covers the charging area 110, airflow can flow in the gap.

[0063] In other embodiments, one of the heat sink 300 and the base 100 may be provided with a guide rail, and the other may be provided with a guide groove that can slide with the guide rail, so that the heat sink 300 can move relative to the base 100 and switch between the first position and the second position. In some embodiments, the sliding cooperation between the guide rail and the guide groove can also form a limit in the thickness direction of the base 100, for example, a trapezoidal groove is used to cooperate with a trapezoidal slide rail to limit the movement of the heat sink 300 in the thickness direction of the base 100, thereby preventing the heat sink 300 from easily detaching from the base 100. Further, refer to Fig.15 and Fig.16 In this embodiment, a stopper 120 may be provided at one end of the base 100. Fig.17 and Fig.18 In the first position, the stopper 120 is located at the end of the base 100 away from the air outlet 301 and is relatively far away from the air outlet 301. Fig.19 and Fig. 20 In the second position, the boss 330 of the heat dissipation box 300 abuts against the stopper 120 to limit the movement range of the heat dissipation box 300, and in the second position, the air outlet 301 is closer to the stopper 120. In the process of the heat dissipation box 300 moving from the first position to the second position, this structural setting can prevent the heat dissipation box 300 from being separated from the base 100 due to excessive pulling force or pushing force.

[0064] Combination Fig.21 In the embodiment where the heat dissipation box 300 can move relative to the base 100 to switch between the first position and the second position, for electronic devices such as smart phones and tablet computers with wireless charging function and slightly larger in size, when the electronic device is placed in the charging area 110 for charging, the support body 800 supports the electronic device and allows a gap to exist between the electronic device and the outer surface of the charging area 110, and the electronic device can cover the entire charging area 110, and there can be no gap or a very small gap between the electronic device and the support body 800. Fig. 20 During the wireless charging of the electronic device, the fan 310 can supply air from the air outlet 301. After the air flow passes through the gap and performs heat exchange, it flows out from the end of the support body 800 away from the heat dissipation box 300, thereby dissipating heat for the electronic device and the wireless charging stand 10, so as to improve the heat dissipation efficiency of the wireless charging stand 10.

[0065] For electronic devices with wireless charging function and slightly smaller size, such as smart watches, wireless headphones, etc., when the electronic device is placed in the charging area 110 for charging, the electronic device contacts the outer surface of the charging area 110, and an air flow channel can be formed between the periphery of the electronic device and the support body 800. The fan 310 can send air from the air outlet 301, and the air flow flows through the periphery of the electronic device to carry heat and dissipate it into the air. This method can also dissipate heat for the electronic device and the wireless charging stand 10 to improve the heat dissipation efficiency of the wireless charging stand 10. In other embodiments, the support body 800 can be annular, triangular or other shapes, and the support body 800 can be fixedly connected to the charging area 110 by bonding or welding or other connection methods. In other embodiments, the fan 310 can draw air from the air outlet 301 to draw air from the space near the electronic device and the charging area 110 into the heat dissipation box 300, and then flow out of the heat dissipation box 300 through the vent 303.

[0066] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0067] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A wireless charging stand, characterized in that: include: A base, including a charging area, wherein the charging area can be used to place an electronic device for wireless charging; A coil module is disposed in the base and covered by the charging area; and A heat dissipation box, comprising a fan, the heat dissipation box is connected to the base and can move relative to the base to a first position and a second position, wherein the heat dissipation box is superimposed on the charging area in the first position, and the charging area is exposed in the second position and the fan can guide external air to flow to the charging area and perform heat exchange with the electronic device; The heat dissipation box can move relative to the base to switch between a first position and a second position, and support bodies are provided at two opposite edges of the charging area. One end of the heat dissipation box is provided with a boss on the side facing the base, and the boss is provided with an air outlet; during the switching process of the heat dissipation box between the first position and the second position, the boss can move between the two support bodies, and in the second position, the fan can guide the air at the air outlet and the air between the two opposite support bodies to produce relative flow.

2. The wireless charging stand according to claim 1, characterized in that: In the first position, the boss is flush with one end of the support body.

3. The wireless charging stand according to claim 2, characterized in that: In the first position, the other end of the support body is flush with the end of the heat dissipation box away from the boss.

4. The wireless charging stand according to claim 1, characterized in that: One of the heat dissipation box and the base is provided with a guide rail, and the other is provided with a guide groove capable of slidingly cooperating with the guide rail.

5. The wireless charging stand according to claim 1, characterized in that: The fan can deliver air through the air outlet, or the fan can draw air from the air outlet.

6. The wireless charging stand according to claim 1, characterized in that: A stopper is provided at one end of the base. In a first position, the stopper is located at an end of the base away from the air outlet. In a second position, the heat dissipation box abuts against the stopper to limit the movement range of the heat dissipation box.

7. The wireless charging stand according to any one of claims 1 to 6, characterized in that: The wireless charging seat comprises a magnetic isolation sheet and a bracket arranged in the base, the coil module is stacked on the magnetic isolation sheet, the magnetic isolation sheet is connected to the bracket, and the bracket is connected to the base.

8. The wireless charging stand according to claim 7, characterized in that: The wireless charging stand includes a circuit board and a heat insulation structure arranged in the base, the heat insulation structure is arranged on a side of the bracket away from the coil module, and the circuit board is arranged on a side of the heat insulation structure away from the coil module.

9. The wireless charging stand according to claim 8, characterized in that: A side of the heat insulation structure facing away from the coil module forms a heat insulation cavity with the base, and the circuit board is accommodated in the heat insulation cavity.

10. The wireless charging stand according to claim 9, characterized in that: A heat conductor is provided between the circuit board and the base, and the heat conductor can conduct the heat generated by the circuit board to the base.

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