Wireless charging station

Abstract

The present application relates to a wireless charging stand, comprising a housing, a baffle, a coil module, a circuit board and a fan. The housing is provided with a mounting cavity and a first air outlet and a second air outlet. The baffle is provided in the mounting cavity and divides the mounting cavity into a first chamber and a second chamber. The first air outlet and the second air outlet are respectively connected to the first chamber. The coil module is provided in the second chamber, and the circuit board is provided in the mounting cavity and is electrically connected to the coil module. The fan is provided in the first chamber, and the fan can guide the outside air to flow into the first chamber from one of the first air outlet and the second air outlet, and guide the air to flow out of the first chamber from the other of the first air outlet and the second air outlet, so that the air at the second air outlet can exchange heat with the electronic equipment. In the above-mentioned wireless charging stand, the arrangement in which the fan and the coil module are separated in the first chamber and the second chamber by the baffle can prevent the heat generated by the coil module from flowing back and thereby reducing the heat dissipation efficiency of the wireless charging stand.

Description

Technical Field

[0001] The present application relates to the technical field of charging stations. 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 and horizontal. For vertical wireless charging stations, electronic devices are generally placed on the wireless charging station at an angle while charging. Due to the relatively fixed position of the coil of the wireless charging station, the models that vertical wireless charging stations are compatible with are relatively limited. For horizontal wireless charging stations, electronic devices are generally placed flat on the wireless charging base while charging. The heat dissipation duct design of horizontal wireless charging stations is relatively complex, resulting in poor heat dissipation. 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 housing having a mounting cavity and a first air outlet and a second air outlet, wherein the housing can be used to place an electronic device, with the second air outlet facing the electronic device;

[0006] a baffle, disposed in the installation cavity and dividing the installation cavity into a first chamber and a second chamber, wherein the first air outlet and the second air outlet are respectively connected to the first chamber;

[0007] a coil module, disposed in the second chamber;

[0008] a circuit board, disposed in the mounting cavity and electrically connected to the coil module; and

[0009] A fan is provided in the first chamber, and the fan can guide external air to flow into the first chamber from one of the first air outlet and the second air outlet, and guide air to flow out of the first chamber from the other of the first air outlet and the second air outlet, so that the air at the second air outlet can exchange heat with the electronic device.

[0010] With the wireless charging stand, electronic devices such as smartphones, smart watches, and wireless headphones with wireless charging functions can be placed in the charging area for wireless charging. The wireless charging stand is compatible with a variety of models, improving the convenience of use. Since the wireless charging stand is provided with a fan, a first air outlet, and a second air outlet, during the wireless charging process of the electronic device, the fan can cause the air around the electronic device to flow, thereby facilitating the heat dissipation of the electronic device. Since the fan and the coil module are separated into the first chamber and the second chamber by a baffle, in an embodiment in which the fan discharges air from the second air outlet, the baffle can prevent the hot air in the second chamber from flowing into the first chamber and then being directed to the electronic device, thereby reducing the heat dissipation efficiency of the wireless charging stand. In an embodiment in which the fan inlets air from the second air outlet, the baffle can prevent the hot air in the second chamber from flowing back into the second chamber, thereby reducing the heat dissipation efficiency of the wireless charging stand. The heat dissipation duct of the wireless charging stand is easy to design, has a good heat dissipation effect, and can meet the requirements of high-power wireless charging to shorten the wireless charging time.

[0011] In one embodiment, the fan has a third air outlet and a fourth air outlet, the third air outlet is connected to the first chamber and is isolated from the second chamber by the baffle, the fourth air outlet is connected to the second air outlet and is isolated from the second chamber, and the fan is capable of guiding air to flow in from one of the third air outlet and the fourth air outlet, and guiding air to flow out from the other of the third air outlet and the fourth air outlet.

[0012] In one embodiment, the fan has a third air outlet and a fourth air outlet, the housing is provided with a fifth air outlet connected to the second chamber, the third air outlet is connected to the first chamber and is isolated from the second chamber by the baffle, and the fourth air outlet is connected to the second chamber, and the fan is capable of guiding air to flow in from one of the third air outlet and the fourth air outlet, and guiding air to flow out from the other of the third air outlet and the fourth air outlet.

[0013] In one embodiment, the wireless charging stand includes a plurality of electronic components disposed on the circuit board, and the electronic components are disposed on a side of the circuit board away from the coil module.

[0014] In one embodiment, the circuit board is entirely accommodated in the second cavity.

[0015] In one embodiment, the wireless charging stand includes a magnetic isolation sheet disposed in the second chamber, and the coil module is stacked on the magnetic isolation sheet.

[0016] In one embodiment, the distance between a side of the circuit board facing the coil module and a side of the magnetic isolation plate facing away from the coil module is greater than or equal to 3 mm.

[0017] In one embodiment, a heat conductor is provided on a side of the circuit board facing away from the coil module, and the heat conductor can conduct heat generated by the circuit board to the housing.

[0018] In one embodiment, the wireless charging stand includes a bracket connected to the housing, and the magnetic isolation sheet is connected to the bracket.

[0019] In one embodiment, the shell includes an upper shell and a bottom shell, the upper shell and the bottom shell are connected to form the installation cavity, the first air outlet is located on the bottom shell, the second air outlet is located on the upper shell, the orthographic projection of the first air outlet on the reference plane is located within the orthographic projection of the upper shell on the reference plane, and the reference plane is a geometric plane perpendicular to the thickness direction of the wireless charging stand.

[0020] In one embodiment, in the thickness extension direction of the wireless charging stand, the area enclosed by the outer contour of the cross section of the bottom shell gradually decreases from an end close to the upper shell to an end away from the upper shell.

[0021] In one embodiment, the bottom shell forms a boss on the side where the first air outlet is located, the first air outlet is arranged on the outer periphery of the boss, and the boss protrudes from the first air outlet on the side away from the upper shell.

[0022] In one embodiment, the wireless charging stand includes a gasket, which is arranged on the circumference of the boss and protrudes from a side of the boss facing away from the upper shell.

[0023] In one embodiment, the upper shell includes a shell and a gasket, the shell forms a first recessed area covering the coil module, the gasket is arranged in the first recessed area, and the second air outlet extends from the first chamber to the first recessed area.

[0024] In one embodiment, the gasket covers the first recessed area and forms a second recessed area, the second air vent connects the second recessed area and the first chamber, and the electronic device can be placed on the gasket for wireless charging. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. 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 any creative work.

[0026] Figure 1is a schematic diagram of a wireless charging station in one embodiment;

[0027] Figure 2 for Figure 1 A schematic diagram of the wireless charging station from another perspective;

[0028] Figure 3 for Figure 1 Exploded view of the wireless charging station shown;

[0029] Figure 4 for Figure 1 A top view of the wireless charging station shown;

[0030] Figure 5 for Figure 4 A cross-sectional view of the wireless charging station along AA is shown;

[0031] Figure 6 for Figure 5 A cross-sectional view of the wireless charging station from another perspective;

[0032] Figure 7 for Figure 1 Another exploded view of the wireless charging station shown;

[0033] Figure 8 for Figure 1 A front view of the wireless charging station shown;

[0034] Figure 9 for Figure 1 Right side view of the wireless charging station shown;

[0035] Figure 10 FIG. 4 is a cross-sectional view of a wireless charging stand in another embodiment. DETAILED DESCRIPTION

[0036] To facilitate understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings. The accompanying drawings illustrate preferred embodiments of the present application. However, the present application may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the disclosure of the present application.

[0037] refer to Figure 1 、 Figure 2 and Figure 3The wireless charging stand 10 includes a housing 100, a coil module 200, a circuit board 300, a fan 400, and a baffle 500. The coil module 200, the circuit board 300, and the fan 400 can be respectively installed in the housing 100 and supported and positioned by the housing 100. The housing 100 is provided with a mounting cavity 101 and a first air outlet 103 and a second air outlet 105. The housing 100 can be used to place electronic devices with wireless charging function, so that the wireless charging stand 10 can be used to wirelessly charge the electronic devices, and the second air outlet 105 is directed toward the electronic devices. Also refer to Figure 4 、 Figure 5 and Figure 6 The baffle 500 is disposed within the mounting cavity 101 and divides the mounting cavity 101 into a first chamber 101a and a second chamber 101b. The first air outlet 103 and the second air outlet 105 are respectively connected to the first chamber 101a. In some embodiments, the baffle 500 can completely isolate the first chamber 101a from the second chamber 101b, i.e., disconnect the first and second chambers 101a, 101b. In other embodiments, a through hole can be provided in a portion of the baffle 500 to partially connect the first and second chambers 101a, 101b. The through hole can be used to pass circuit wiring, etc.

[0038] refer to Figure 5 and Figure 6 , the coil module 200 is arranged in the second chamber 101b, and the circuit board 300 is arranged in the mounting cavity 101 and is electrically connected to the coil module 200. Specifically, the circuit board 300 can be located entirely in the second chamber 101b, or partially in the second chamber 101b. Of course, the circuit board 300 can also be located entirely in the first chamber 101a. The fan 400 is arranged in the first chamber 101a. The fan 400 can guide the outside air to flow into the first chamber 101a from one of the first air outlet 103 and the second air outlet 105, and guide the air to flow out of the first chamber 101a from the other of the first air outlet 103 and the second air outlet 105, so that the air at the second air outlet 105 can perform heat exchange with the electronic device. Specifically, in an embodiment of the present application, the fan 400 can guide the air to enter the first chamber 101a from the first air outlet 103, and guide the air to flow from the second air outlet 105 to the electronic device to perform heat exchange with the air in the space near the electronic device. In other embodiments, the fan 400 can guide the air in the space near the electronic device into the first chamber 101a through the second air outlet 105, and guide the air out of the first air outlet 103 to the outside of the wireless charging stand 10. This method can also dissipate heat from the electronic device during wireless charging, thereby improving the heat dissipation performance of the wireless charging stand 10.

[0039] In some embodiments, the housing 100 is roughly elliptical, the fan 400 is a centrifugal fan 400, and the rotation axis of the fan 400 is roughly parallel to the thickness direction of the housing 100. The arrangement of the centrifugal fan 400 facilitates the lightweight design of the wireless charging station 10. Furthermore, a geometric plane perpendicular to the thickness direction of the housing 100 is drawn and used as a reference plane. The orthographic projection of the fan 400 on the reference plane is spaced apart from the orthographic projection of the coil module 200 on the reference plane, as shown in FIG. Figure 5 This arrangement avoids stacking the fan 400 on the coil module 200, which facilitates a lightweight and thin design for the wireless charging station 10. Of course, in other embodiments, the housing 100 can have other shapes, such as a rounded rectangle or a runway shape, where a runway shape refers to a shape formed by two semicircular arcs connected to opposite sides of a rectangle.

[0040] refer to Figure 7 The housing 100 includes an upper shell 110 and a bottom shell 120, which are connected to form a mounting cavity 101. In some embodiments, the upper shell 110 is generally plate-shaped, and the main part of the mounting cavity 101 is located in the bottom shell 120. Specifically, referring to Figure 7 The bottom shell 120 has a sidewall 121 connected to the upper shell 110. The upper shell 110 and the bottom shell 120 form a mounting cavity 101. The first air outlet 103 is located in the bottom shell 120, and the second air outlet 105 is located in the upper shell 110. In other embodiments, the bottom shell 120 may be plate-shaped, with the sidewall 121 located in the upper shell 110. The fan 400 may be mounted on the upper shell 110 or the bottom shell 120. Specifically, the fan 400 may be connected to the upper shell 110 or the bottom shell 120 using threaded connections, welding, or adhesive bonding. Furthermore, in some embodiments, the bottom shell 120 is made of a metal material such as an aluminum alloy, magnesium alloy, or stainless steel. This metal material facilitates heat dissipation from the housing 100. For example, some heat within the mounting cavity 101 can be dissipated into the air through the bottom shell 120, thereby improving the heat dissipation performance of the wireless charging stand 10. Of course, in other embodiments, the bottom shell 120 may also be made of a non-metallic material. The baffle 500 can be fixedly connected to the upper shell 110 or the bottom shell 120 by welding, bonding, or threaded connection. Of course, the baffle 500 can also be integrally formed with the upper shell 110, or the baffle 500 can be integrally formed with the bottom shell 120.

[0041] Furthermore, in an embodiment of the present application, the bottom shell 120 is provided with an electrical connection interface, which is electrically connected to the circuit board 300. The electrical connection interface is used to connect an external power source to power the wireless charging stand 10, thereby enabling the wireless charging stand 10 to be used to charge electronic devices. The electrical connection structure can be a USB interface, or a cable with a plug, etc. Of course, in other embodiments, the electrical connection interface can also be located on the upper shell 110. Furthermore, the upper shell 110 or the bottom shell 120 of the housing 100 can be provided with an indicator light to indicate the working status of the wireless charging stand 10.

[0042] Further, refer to Figure 4 and Figure 5 The orthographic projection of the first air vent 103 on the reference plane is located within the orthographic projection of the upper shell 110 on the reference plane. The reference plane is a geometric plane perpendicular to the thickness direction of the wireless charging stand 10. That is, when a user looks directly at the top of the wireless charging stand 10, the first air vent 103 is obscured by the upper shell 110 and is not visible. This arrangement of the first air vent 103 means that when the wireless charging stand 10 is placed on a flat support, such as a table, the first air vent 103 is obscured by the outer shell 100 when looking directly at the upper shell 110 along the thickness direction of the wireless charging stand 10. This arrangement prevents foreign matter such as water and dust from easily entering the wireless charging stand 10, thereby improving the waterproof and dustproof performance of the wireless charging stand 10.

[0043] Further, combined Figure 8 In the thickness direction of the wireless charging stand 10, the cross-sectional area of ​​a portion of the bottom shell 120 gradually decreases from the end closest to the upper shell 110 to the end further away from the upper shell 110. That is, in the thickness direction of the wireless charging stand 10, the wireless charging stand 10 has a structure with a larger upper end and a smaller lower end. This structural arrangement can improve the appearance of the wireless charging stand 10 and can utilize the larger end of the outer shell 100 to shield the first air vent 103. Of course, in other embodiments, the outer shell 100 can be rectangular, that is, the cross-sectional area of ​​the outer shell 100 can be roughly equal in the thickness direction of the wireless charging stand 10. By providing a stepped portion of the outer shell 100, the first air vent 103 can also be shielded by the upper shell 110.

[0044] Further, refer to Figure 5When the wireless charging stand 10 is placed on a flat support such as a desktop, the first air outlet 103 faces the surface of the support. The bottom shell 120 forms a boss 123 on the side where the first air outlet 103 is located. The first air outlet 103 is arranged on the outer periphery of the boss 123, and the boss 123 protrudes from the first air outlet 103 on the side away from the upper shell 110. This structure is conducive to the processing of the bottom shell 120, and can use the upper ends of the upper shell 110 and the bottom shell 120 to form a better shielding for the first air outlet 103, and the boss 123 can effectively support the wireless charging stand 10, so that the wireless charging stand 10 can be placed stably on the support. Further, combined with Figure 2 In the embodiment of the present application, the boss 123 is substantially in the shape of a racetrack. In other embodiments, the boss 123 can be in other shapes such as a rectangle, a rounded rectangle, an ellipse, etc.

[0045] Furthermore, the wireless charging stand 10 includes a gasket 600, which is generally annular and matches the shape of the boss 123. For example, in the embodiment of the present application, the gasket 600 is generally runway-shaped, and the gasket 600 is arranged around the circumference of the boss 123 and protrudes from the side of the boss 123 facing away from the upper shell 110. The material of the gasket 600 can be silicone, rubber, or plastic. When the wireless charging stand 10 is placed on a support, the gasket 600 can increase the friction coefficient between the bottom shell 120 and the support, thereby preventing the wireless charging stand 10 from sliding easily on the support.

[0046] Refer again Figure 7 The upper shell 110 may include a shell 111 and a gasket 113. The shell 111 forms a first recessed area 111a covering the coil module 200, that is, the shell 111 of the upper shell 110 has a structure with one side high and one side low, and the low side of the shell 111 can be used to place electronic equipment. The fan 400 can be correspondingly arranged on the slightly higher side of the shell 111 of the upper shell 110 to improve the space utilization inside the wireless charging stand 10. Furthermore, the upper shell 110 may include a decorative cover 115. The slightly higher side of the shell 111 of the upper shell 110 is provided with a mounting hole, and the decorative cover 115 is arranged in the mounting hole. The exposed surface of the decorative cover 115 can be provided with a pattern, etc., to achieve a better decorative effect on the wireless charging stand 10, thereby enhancing the appearance characteristics of the wireless charging stand 10. Of course, it can be understood that the decorative cover 115 is not necessary.

[0047] The gasket 113 is arranged in the first recessed area 111a, and the second air outlet 105 extends from the first chamber 101a to the first recessed area 111a. Furthermore, the gasket 113 covers the first recessed area 111a and the gasket 113 forms a second recessed area 113a. The second air outlet 105 connects the second recessed area 113a and the first chamber 101a. The electronic device can be placed on the gasket 113 for wireless charging. Specifically, in combination with Figure 9In some embodiments, the gasket 113 has a structure that is slightly higher on both sides and slightly lower in the middle to form a second recessed area 113a. When a slightly larger electronic device is placed on the gasket 113, the electronic device is supported by the gasket 113, and the second recessed area 113a extends to the end of the gasket 113 away from the second air outlet 105. The outside air can generate relative flow with the air in the second recessed area 113a and exchange heat with the electronic device to improve the heat dissipation performance of the wireless charging stand 10. For example, in an embodiment in which the fan 400 guides the air to flow out from the second air outlet 105 to the electronic device, the air after heat exchange can flow out from the end of the second recessed area 113a away from the second air outlet 105, thereby enabling the heat generated by the electronic device to be effectively dissipated into the air.

[0048] In some embodiments, the gasket 113 is sheet-shaped and conforms to the contour of the first recessed area 111a. The gasket 113 can be made of a flexible material such as silicone or rubber. It can be used to support the electronic device, allowing it to be stably placed in the second recessed area 113a for wireless charging. The gasket 113 can also improve the thermal insulation between the electronic device and the housing 111, preventing heat generated by the electronic device from easily transferring to the housing 111 of the upper shell 110. The provision of the gasket 113 and the second recessed area 113a also allows the user to accurately place the electronic device in the position corresponding to the coil module 200 on the upper shell 110, thereby improving ease of use. The gasket 113 also prevents scratches on the electronic device and the housing 111 of the upper shell 110. In other embodiments, the gasket 113 can have other shapes. For example, the gasket 113 can be strip-shaped and positioned at two opposite edges of the first recessed area 111a to support large electronic devices for wireless charging and facilitate heat dissipation. Of course, it is understandable that the gasket 113 is not necessary.

[0049] For electronic devices such as smart phones and tablet computers with wireless charging function and slightly larger size, when the electronic device is placed on the upper shell 110 for charging, the gasket 113 supports the electronic device and uses the second recessed area 113a to form a channel for air flow between the electronic device and the gasket 113. Figure 5 During wireless charging of the electronic device, the fan 400 can supply air from the second air outlet 105. After the air flow passes through the second recessed area 113a and undergoes heat exchange, it flows out from the end of the second recessed area 113a away from the second air outlet 105, thereby improving the heat dissipation efficiency of the wireless charging stand 10.

[0050] For electronic devices with wireless charging function and slightly smaller size, such as smart watches, wireless headphones, etc., when the electronic device is placed on the upper shell 110 for charging, the electronic device can be placed in the second recessed area 113a and contact the outer surface of the gasket 113. The periphery of the electronic device and the gasket 113 can form a channel for air flow. The fan 400 can supply air from the second air outlet 105. The air flow flows through the periphery of the electronic device for heat exchange and dissipates into the air. This method can also improve the heat dissipation efficiency of the wireless charging stand 10.

[0051] Further, refer to Figure 3 The wireless charging stand 10 includes a magnetic isolation sheet 700 provided in the second chamber 101b, and the coil module 200 is stacked on the magnetic isolation sheet 700. The magnetic isolation sheet 700 can be made of ferrite 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 lines of force tightly surround the surrounding area centered on the magnetic isolation sheet 700 to increase the electromagnetic induction intensity and improve the electromagnetic conversion efficiency.

[0052] Furthermore, the wireless charging stand 10 includes a bracket 800 connected to the bottom shell 120, and the magnetic isolation sheet 700 is arranged on the bracket 800 and supported by the bracket 800. In some embodiments, the bracket 800 can conduct the heat generated by the coil module 200 to the bottom shell 120. During the wireless charging process of the electronic device, this arrangement is conducive to conducting the heat generated by the coil module 200 to the metal bottom shell 120, and dissipating the heat generated by the coil module 200 to the outside air through the bottom shell 120. In an embodiment where the bottom shell 120 is made of a non-metallic material, the bracket 800 can also improve the stability of the installation of the coil module 200 and the magnetic isolation sheet 700. Of course, the bracket 800 can also be connected to the upper shell 110 and supported and positioned by the upper shell 110.

[0053] Furthermore, in an embodiment of the present application, the circuit board 300 is entirely housed in the second chamber 101b and spaced apart from the magnetic isolation sheet 700. The circuit board 300 can be fixedly connected to the bottom shell 120 or the upper shell 110 by threaded connection or bonding, which will not be described in detail here. Furthermore, in an embodiment of the present application, the circuit board 300 is arranged roughly parallel to the coil module 200, that is, the thickness direction of the coil module 200 is arranged roughly parallel to the thickness direction of the circuit board 300. The wireless charging stand 10 includes a plurality of electronic components such as control chips, resistors, capacitors, etc. arranged on the circuit board 300. The number of electronic components is more than 2, and a plurality of electronic components are arranged on the side of the circuit board 300 away from the coil module 200. In the process of wireless charging of electronic devices by the wireless charging stand 10, this arrangement can reduce the impact of heat generated by the coil module 200 on the electronic components of the circuit board 300, thereby improving the heat dissipation performance of the wireless charging stand 10. Furthermore, the distance between the side of the circuit board 300 facing the coil module 200 and the side of the magnetic isolation sheet 700 facing away from the coil module 200 is greater than or equal to 3 mm. This arrangement not only reduces the impact of heat generated by the coil module 200 on the electronic components of the circuit board 300, but also prevents the thickness of the wireless charging stand 10 from increasing too much, thereby facilitating a slimmer design of the wireless charging stand 10 while improving its heat dissipation performance.

[0054] In other embodiments, the circuit board 300 can be arranged at an angle relative to the coil module 200, i.e., the thickness of the circuit board 300 forms an acute angle with the thickness of the coil module 200. Of course, in other embodiments, the circuit board 300 can also be arranged perpendicular to the coil module 200, i.e., the thickness of the coil module 200 is perpendicular to the thickness of the circuit board 300. In embodiments where the thickness of the coil module 200 is perpendicular to the thickness of the circuit board 300, it is best if the orthographic projection of the circuit board 300 along the thickness of the wireless charging station 10 does not fall within the coil module 200. This prevents the thickness of the wireless charging station 10 from increasing too much and reduces the impact of heat generated by the coil module 200 on the electronic components on the circuit board 300. For example, in an embodiment where the thickness direction of the coil module 200 is perpendicular to the thickness direction of the circuit board 300, the circuit board 300 and the coil module 200 can be staggered in the horizontal direction, and multiple electronic components can also be arranged on the side of the circuit board 300 away from the coil module 200 to reduce the impact of heat generated by the coil module 200 on the electronic components of the circuit board 300.

[0055] Furthermore, in some embodiments, a heat conductor is provided on the side of the circuit board 300 facing away from the coil module 200. The heat conductor can transfer the heat generated by the circuit board 300 to the bottom case 120. Specifically, the heat conductor can be silicone grease or a metal thermal pad, etc., to transfer the heat generated by the circuit board 300 to the metal bottom case 120. The heat generated by the circuit board 300 is then dissipated into the air through the bottom case 120, further improving the heat dissipation performance of the wireless charging stand 10.

[0056] Further, refer to Figure 5 In some embodiments, the fan 400 has a third air outlet 410 and a fourth air outlet 420. The third air outlet 410 communicates with the first chamber 101a and is isolated from the second chamber 101b by the baffle 500. The fourth air outlet 420 communicates with the second air outlet 105 and is isolated from the second chamber 101b. The fan 400 can direct air into one of the third air outlet 410 and the fourth air outlet 420 and out of the other of the third air outlet 410 and the fourth air outlet 420. In this embodiment, the housing 100 may be provided with a fifth air outlet 107 communicating with the second chamber 101b. The structure of the fifth air outlet 107 is similar to that of the first air outlet 103 and is arranged circumferentially around the boss 123. The fifth air outlet 107 connects the second chamber 101b with the outside world, allowing the air in the second chamber 101b to exchange heat with the outside air, thereby improving the heat dissipation performance of the wireless charging stand 10. In this embodiment, the baffle 500 can prevent the hot air in the second chamber 101 b from flowing into the first chamber 101 a and then being directed to flow into the electronic device, thereby reducing the heat dissipation efficiency of the wireless charging stand 10 .

[0057] refer to Figure 10In other embodiments, the housing 100 is provided with a fifth air vent 107 communicating with the second chamber 101b. The structure of the fifth air vent 107 is similar to that of the first air vent 103 and is arranged circumferentially around the boss 123. The third air vent 410 communicates with the first chamber 101a and is isolated from the second chamber 101b by the baffle 500. The fourth air vent 420 communicates with the second chamber 101b and the fifth air vent 107. In embodiments where the fan 400 guides air from the first chamber 101a to the second air vent 105 and out of the wireless charging stand 10 from the second air vent 105, the air in the first chamber 101a can be guided by the fan 400 into the second chamber 101b and undergo heat exchange with the coil module 200 and the circuit board 300. The air after heat exchange then flows out of the wireless charging stand 10 through the fifth air vent 107, thereby improving the heat dissipation performance of the wireless charging stand 10. Similarly, in an embodiment where the fan 400 guides air from the second air vent 105 into the first chamber 101a and out of the wireless charging stand 10 through the first air vent 103, outside air can be guided from the fifth air vent 107 into the second chamber 101b to undergo heat exchange with the coil module 200 and the circuit board 300. After the heat exchange, the air can then be guided by the fan 400 into the first chamber 101a and out of the wireless charging stand 10 from the first chamber 101a through the first air vent 103, thereby improving the heat dissipation performance of the wireless charging stand 10. In this embodiment, the baffle 500 can prevent the hot air in the second chamber 101b from entering the first chamber 101a and then flowing back into the second chamber 101b, thereby reducing the heat dissipation efficiency of the wireless charging stand 10.

[0058] With the wireless charging stand 10, electronic devices such as smart phones, smart watches, and wireless headphones with wireless charging functions can be placed in the charging area for wireless charging. The wireless charging stand 10 can be adapted to a variety of models, which improves the convenience of use. Since the wireless charging stand 10 is provided with a fan 400, a first air outlet 103, and a second air outlet 105, during the process of wireless charging of the electronic device, the fan 400 can cause the air around the electronic device to flow, thereby facilitating the heat dissipation of the electronic device. Since the fan 400 and the coil module 200 are separated by the baffle 500 into the first chamber 101a and the second chamber 101b, in the embodiment where the fan 400 discharges air from the second air outlet 105, the baffle 500 can prevent the hot air in the second chamber 101b from flowing to the first chamber 101a and then being guided to flow to the electronic device, thereby reducing the heat dissipation efficiency of the wireless charging stand 10. In an embodiment where the fan 400 draws air from the second air port 105, the baffle 500 can prevent hot air in the second chamber 101b from flowing back into the second chamber 101b, thereby reducing the heat dissipation efficiency of the wireless charging stand 10. The heat dissipation duct of the wireless charging stand 10 is easy to design, has excellent heat dissipation, and can meet the requirements of high-power wireless charging, thereby shortening the wireless charging time.

[0059] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned 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.

[0060] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. A wireless charging stand, characterized in that: include: A housing having a mounting cavity and a first air outlet and a second air outlet, wherein the housing can be used to place an electronic device, with the second air outlet facing the electronic device; a baffle, disposed in the installation cavity and dividing the installation cavity into a first chamber and a second chamber, wherein the first air outlet and the second air outlet are respectively connected to the first chamber; a coil module, disposed in the second chamber; a circuit board, disposed in the mounting cavity and electrically connected to the coil module; and A fan is provided in the first chamber, the fan having a third air outlet and a fourth air outlet, the housing being provided with a fifth air outlet communicating with the second chamber, the third air outlet communicating with the first chamber and being isolated from the second chamber by the baffle, the fourth air outlet communicating with the second air outlet, and the fourth air outlet communicating with the fifth air outlet via the second chamber, the fan being capable of guiding air to flow in from one of the third air outlet and the fourth air outlet, and guiding air to flow out from the other of the third air outlet and the fourth air outlet, a portion of the airflow caused by the fan entering the second chamber from the first chamber or entering the first chamber from the second chamber, and the baffle being capable of blocking backflow between the first chamber and the second chamber.

2. The wireless charging stand according to claim 1, characterized in that: The thickness direction of the circuit board forms an acute angle with the thickness direction of the coil module.

3. The wireless charging stand according to claim 1, wherein: The thickness direction of the coil module is perpendicular to the thickness direction of the circuit board, and in the thickness direction of the circuit board, the circuit board and the coil module are staggered.

4. The wireless charging stand according to claim 1, wherein: The wireless charging stand includes a plurality of electronic components arranged on the circuit board, and the electronic components are arranged on a side of the circuit board away from the coil module.

5. The wireless charging stand according to claim 4, characterized in that: The circuit board is entirely accommodated in the second cavity.

6. The wireless charging stand according to claim 4, characterized in that: The wireless charging stand includes a magnetic isolation sheet arranged in the second cavity, and the coil module is stacked on the magnetic isolation sheet.

7. The wireless charging stand according to claim 6, characterized in that: The distance between a side of the circuit board facing the coil module and a side of the magnetic isolation plate facing away from the coil module is greater than or equal to 3 mm.

8. The wireless charging stand according to claim 7, wherein: A heat conductor is provided on a side of the circuit board facing away from the coil module, and the heat conductor can conduct heat generated by the circuit board to the housing.

9. The wireless charging stand according to claim 6, wherein: The wireless charging stand includes a bracket connected to the housing, and the magnetic isolation sheet is connected to the bracket.

10. The wireless charging stand according to any one of claims 1 to 9, characterized in that: The shell includes an upper shell and a bottom shell, the upper shell and the bottom shell are connected to form the installation cavity, the first air outlet is located on the bottom shell, the second air outlet is located on the upper shell, and the orthographic projection of the first air outlet on the reference plane is located within the orthographic projection of the upper shell on the reference plane. The reference plane is a geometric plane perpendicular to the thickness direction of the wireless charging stand.

11. The wireless charging stand according to claim 10, wherein: In the thickness extension direction of the wireless charging stand, the area enclosed by the outer contour of the cross section of the bottom shell gradually decreases from an end close to the upper shell to an end away from the upper shell.

12. The wireless charging stand according to claim 10, wherein: The bottom shell forms a boss on the side where the first air outlet is located. The first air outlet is arranged on the outer periphery of the boss. The boss protrudes from the first air outlet on the side away from the upper shell.

13. The wireless charging stand according to claim 12, wherein: The wireless charging seat includes a gasket, which is arranged in the circumference of the boss and protrudes from a side of the boss facing away from the upper shell.

14. The wireless charging stand according to claim 10, wherein: The upper shell includes a shell and a gasket, the shell forms a first recessed area covering the coil module, the gasket is arranged in the first recessed area, and the second air outlet extends from the first chamber to the first recessed area.

15. The wireless charging stand according to claim 14, wherein: The gasket covers the first recessed area and forms a second recessed area. The second air vent connects the second recessed area and the first chamber. The electronic device can be placed on the gasket for wireless charging.

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