Wireless charging device

Abstract

A wireless charging device. The wireless charging device comprises a mounting support, a heat dissipation module, and a wireless charging module, wherein the heat dissipation module and the wireless charging module are mounted on different sides of the mounting support in the thickness direction thereof; and the heat dissipation module comprises a fan blade and a driving member used for driving the fan blade to rotate, and the driving member is fixed on the mounting support. In the present application, additionally providing the heat dissipation module improves the heat dissipation efficiency. Moreover, the outer frame in the related art is eliminated and the heat dissipation module is directly mounted on the mounting support, so that the structure is more compact, the product can be smaller and more convenient to carry, and the difficulty and cost of the production and processing processes are reduced.

Description

Wireless charging device

[0001] This application claims priority to Chinese Patent Application No. 202422787805.7, filed on November 15, 2024, entitled "Wireless Charging Device", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of wireless charging technology, and more particularly to wireless charging devices. Background Technology

[0003] In related technologies, wireless charging devices with high power require the addition of fans for active cooling. However, adding fans significantly increases the thickness of the wireless charging device, making it inconvenient for users. Summary of the Invention

[0004] This application aims to address at least one of the technical problems existing in the prior art. To this end, one objective of this application is to provide a wireless charging device with a more compact structure, which reduces its footprint and improves ease of use.

[0005] This application provides a wireless charging device, which includes a mounting bracket, a heat dissipation module, and a wireless charging module. The heat dissipation module and the wireless charging module are mounted on different sides of the mounting bracket in its thickness direction. The heat dissipation module includes fan blades and a driving member for driving the fan blades to rotate, and the driving member is fixed on the mounting bracket.

[0006] Furthermore, the wireless charging device also includes a control board electrically connected to the wireless charging module; the control board is fixed to the side of the mounting bracket on which the heat dissipation module is mounted; the control board has a clearance opening for avoiding the heat dissipation module.

[0007] Furthermore, the heat dissipation module is located in the central area of ​​the mounting bracket.

[0008] Furthermore, the mounting bracket has a notch on its periphery; the notch extends toward the central area of ​​the mounting bracket; the control board and the wireless charging module are electrically connected at the notch.

[0009] Furthermore, the mounting bracket has a through-hole extending along the thickness direction, and the driving member is used to drive airflow through the through-hole.

[0010] Furthermore, the mounting bracket is also provided with a wire clamping part, one end of which is fixed to the edge of the through-hole, and the other end of which extends into the through-hole; the wire clamping part is used to fix the electrical connector of the drive component.

[0011] Furthermore, the wireless charging device also includes a magnetic component; the magnetic component is arranged around the wireless charging module.

[0012] Furthermore, the mounting bracket is provided with a charging module mounting area and a magnetic component mounting area, both located on the same side of the mounting bracket; the mounting bracket is also provided with a positioning protrusion forming around the charging module mounting area; the magnetic component mounting area is arranged around the outer ring of the positioning protrusion.

[0013] Furthermore, the wireless charging device also includes a housing, which comprises a first housing portion and a second housing portion; the wireless charging module is disposed between the first housing portion and the mounting bracket; and the heat dissipation module is disposed between the second housing portion and the mounting bracket.

[0014] Furthermore, an air inlet is provided on the second shell portion; the circumferential edge of the mounting bracket is radially spaced from the circumferential edge of the second shell portion to form an air outlet; the mounting bracket and the second shell portion are spaced apart in the thickness direction to form an air passage.

[0015] Based on the technical solution, it can be seen that the embodiments provided in this application have the following advantages: (1) The heat dissipation module drives the airflow through the mounting bracket and the wireless charging module, thereby removing the heat on the mounting bracket, providing heat dissipation, improving the charging speed of the wireless charging device, and at the same time, it helps to avoid the aging of the device caused by excessive heat and reduce the risk of spontaneous combustion; (2) The fan is directly mounted on the mounting bracket, eliminating the outer frame, making the wireless charging device smaller and the structure more compact. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 is an exploded view of a wireless charging device according to an embodiment of this application;

[0018] Figure 2 is a schematic diagram of the assembly between the mounting bracket and the heat dissipation module according to an embodiment of this application;

[0019] Figure 3 is a schematic diagram of the mounting bracket according to an embodiment of the present application from one perspective;

[0020] Figure 4 is a schematic diagram of the mounting bracket according to an embodiment of this application from another perspective;

[0021] Figure 5 is a schematic diagram of the assembly between the mounting bracket, control board and fan according to an embodiment of this application;

[0022] Figure 6 is a schematic diagram of the cooperation between the wireless charging device and the housing according to an embodiment of this application;

[0023] Figure 7 is an overall schematic diagram of a wireless charging device according to an embodiment of this application;

[0024] Figure 8 is a cross-sectional view of a wireless charging device according to an embodiment of this application;

[0025] Figure 9 is a schematic diagram of the assembly between the wireless charging device and the support component according to an embodiment of this application.

[0026] Reference numerals: Wireless charging device 100, support component 200, base 210, charging base 220, mounting port 230; Housing 1, first housing portion 11, second housing portion 12; Mounting bracket 2, first side 21, charging module mounting area 211, positioning protrusion 212, magnetic component mounting area 213, second side 22, protrusion 221, central area 222, through opening 23, wire clamping portion 24, notch 25; Heat dissipation module 3, fan blade 31, driving component 32; Wireless charging module 4; Air passage 50, air inlet 51, air outlet 52; Control board 6, clearance opening 61; Magnetic component 7. Detailed Implementation

[0027] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0028] In the description of this application, it should be understood that the terms "center," "thickness," "inner," "outer," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, features defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0029] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0030] Some wireless charging devices on the market have high charging power. When charging devices, these devices overheat significantly, which not only reduces charging speed but also accelerates the aging of both the wireless charging device and the device, and may even lead to spontaneous combustion. These devices can include mobile phones, tablets, earphone charging cases, and other electronic devices.

[0031] In related technologies, some wireless charging devices are equipped with fan components for active heat dissipation. However, the fan component requires an outer frame to guide the airflow, which not only increases the cost of manufacturing and designing the wireless charging device, but also leads to the addition of thickness, resulting in a larger and more inconvenient size for use.

[0032] To address the aforementioned issues, this application provides a wireless charging device that incorporates a heat dissipation module to improve heat dissipation efficiency. Furthermore, it eliminates the outer frame found in related technologies, allowing direct mounting on a mounting bracket. This not only makes the structure more compact and the product smaller and more convenient but also reduces the difficulty and cost of manufacturing processes.

[0033] The wireless charging device 100 according to an embodiment of this application is described below with reference to Figures 1-9.

[0034] As shown in Figures 1 and 2, this application embodiment provides a wireless charging device 100, which includes a mounting bracket 2, a heat dissipation module 3, and a wireless charging module 4. The heat dissipation module 3 and the wireless charging module 4 are mounted on the mounting bracket 2 and are located on different sides of the mounting bracket 2 in its thickness direction; that is, the mounting bracket 2 has a first side and a second side opposite to each other in the thickness direction. The heat dissipation module 3 is located on the first side, and the wireless charging module 4 is located on the second side. The heat dissipation module 3 includes a fan blade 31 and a driving member 32. The driving member 32 is used to drive the fan blade 31 to rotate and is fixed to the mounting bracket 2.

[0035] In a specific application scenario, the heat dissipation module 3 can be a centrifugal fan. The centrifugal fan includes a connected drive motor and fan blades 31. When the heat dissipation module 3 is assembled onto the mounting bracket 2, the drive motor is directly fixed to the mounting bracket 2, and the fan blades 31 are rotatably connected to the mounting bracket 2 via the drive motor. The drive motor drives the fan blades 31 to rotate, and the rotation of the fan blades 31 drives airflow, thereby removing heat.

[0036] The wireless charging module 4 includes a transmitting coil for charging.

[0037] In related technologies, centrifugal fans have an outer frame for guiding airflow, and the fan is rotatably mounted on the outer frame to guide airflow along the frame. Unlike the closest related technology, in this embodiment, the heat dissipation module 3 is directly mounted on the mounting bracket 2, resulting in a more compact structure and a smaller wireless charging device 100.

[0038] The heat from the wireless charging module 4 is partially transferred to the mounting bracket 2, which is located in the airflow path. When the airflow passes through the mounting bracket 2, it can carry away the heat from the mounting bracket 2.

[0039] Based on the technical solutions, the embodiments provided in this application have the following advantages: (1) The heat dissipation module 3 drives airflow through the mounting bracket 2 and dissipates heat from the wireless charging module 4, thereby improving the charging speed of the wireless charging device 100. At the same time, it helps to avoid equipment aging caused by excessive heat and reduces the risk of spontaneous combustion; (2) The heat dissipation module 3 is directly mounted on the mounting bracket 2, eliminating the outer frame, making the wireless charging device 100 more compact and the structure more compact. In some optional examples, the mounting bracket 2 can use a thermally conductive material with higher heat dissipation efficiency, thereby transferring the heat from the wireless charging module 4 to the heat dissipation module 3 more efficiently.

[0040] As shown in Figures 1, 5, and 8, in some embodiments, the wireless charging device 100 further includes a control board 6. The control board 6 is electrically connected to the wireless charging module 4. The control board 6 is fixed to one side of the mounting bracket 2 for the heat dissipation module 3, that is, the control board 6 is mounted on the second side of the mounting bracket 2. The control board 6 has a clearance opening 61 to avoid interference between the control board 6 and the heat dissipation module 3. By providing a clearance opening on the control board 6, interference between the control board 6 and the heat dissipation module 3 can be avoided, ensuring the normal operation of the heat dissipation module 3. At the same time, the control board 6 makes full use of the space occupied by the heat dissipation module 3 in the thickness direction. The control board 6 and the heat dissipation module 3 are stacked on the mounting bracket 2, further reducing the size of the wireless charging device 100 in the thickness direction.

[0041] As shown in Figures 2 and 3, in some embodiments, the heat dissipation module 3 is located in the central region 222 of the mounting bracket 2. With the heat dissipation module 3 positioned in the central region 222, airflow moves from the central region 222 towards the periphery of the mounting bracket 2, improving the uniformity of heat dissipation. In some optional examples, the mounting bracket 2 has a circular outline, and the heat dissipation module 3 can be located at the center of the circular outline. In other optional examples, the mounting bracket 2 has a polygonal outline, and the heat dissipation module 3 is located at the midpoint of the polygonal outline.

[0042] As shown in Figures 2 and 3, in some embodiments, the mounting bracket 2 has a notch 25 on its periphery, which extends toward the central region 222 of the mounting bracket 2, and the control board 6 is electrically connected to the wireless charging module 4 at the notch 25.

[0043] In a specific example, the wireless charging module 4 and the control board 6 are connected by an electrical connector. By setting a notch 25, the electrical connector can be prevented from winding around the edge of the mounting bracket 2 and can directly pass through the mounting bracket 2, making the structure of the wireless charging device 100 more compact.

[0044] In a specific example, the control board 6 has solder joints (not shown in the figure) located on the side of the control board 6 facing the mounting bracket 2, corresponding to the notch 25. The wireless charging module 4 is a transmitting coil, and the conductive wires in the transmitting coil are directly soldered to the solder joints, improving the stability and reliability of the connection structure, thereby improving the stability and reliability of the electrical connection.

[0045] As shown in Figures 2 and 3, in some embodiments, the mounting bracket 2 has a through-hole 23 extending along the thickness direction, and the driving component 32 is used to drive airflow through the through-hole 23. The heat generated by the wireless charging module 4 during electromagnetic coupling can be dissipated through the through-hole 23, thereby enabling the heat dissipation module 3 to remove heat more efficiently and improve heat dissipation efficiency.

[0046] Please refer again to Figures 2 and 3. In conjunction with the above embodiments, the notch 25 and the through-hole 23 are spaced apart, which helps to avoid interference between the heat dissipation module 3 and the electrical connector.

[0047] In some embodiments, as shown in Figures 3 and 4, there are multiple through-holes 23, which are arranged around the central region 222 of the mounting bracket 2.

[0048] As shown in Figures 2 and 3, in some embodiments, the mounting bracket 2 is further provided with a wire-clamping part 24. One end of the wire-clamping part 24 is fixed to the edge of the through-hole 23, and the other end of the wire-clamping part 24 extends into the through-hole 23. The wire-clamping part 24 is used to fix the electrical connectors of the drive component 32. That is, the wire-clamping part 24 is located inside the through-hole 23. The wire-clamping part 24 can fix the electrical connectors of the heat dissipation module 3, such as power supply cables and signal communication lines, which helps to avoid interference between the fan blade 31 and the electrical connectors. At the same time, the wire-clamping part 24 is located inside the through-hole 23 without increasing the thickness of the mounting bracket 2, further improving the compactness of the structure and the utilization rate of space.

[0049] As shown in Figures 2 and 3, in a specific example, one end of the wire clamp 24 is connected to the edge of the through-hole 23, and the other end extends along the inside of the through-hole 23.

[0050] As shown in Figures 1 and 6, in some embodiments, the wireless charging module 4 further includes a magnetic element 7. The magnetic element 7 is disposed around the wireless charging module 4 and can magnetically connect to the power device to fix the power device at the wireless charging module 4, thereby enabling the wireless charging module 4 to charge the power device more stably.

[0051] The electrical equipment here can be electronic devices such as mobile phones, headphones, and tablets.

[0052] As shown in Figure 4, in some embodiments, the mounting bracket 2 is provided with a charging module mounting area 211 and a magnetic component mounting area 213, both located on the same side of the mounting bracket 2. The mounting bracket 2 is also provided with a positioning protrusion 212 surrounding the charging module mounting area 211, and the magnetic component mounting area 213 is arranged around the outer ring of the positioning protrusion 212. The positioning protrusion 212 can separate the magnetic component 7 and the wireless charging module 4, which helps to avoid mutual attraction and interference between the two; at the same time, the positioning protrusion 212 can locate the installation position of the wireless charging module 4, improving assembly efficiency.

[0053] As shown in Figures 5-7, in some embodiments, the wireless charging module 4 further includes a housing 1, which includes a first housing portion 11 and a second housing portion 12. The wireless charging module 4 is disposed between the first housing portion 11 and the mounting bracket 2, and the heat dissipation module 3 is disposed between the second housing portion 12 and the mounting bracket 2.

[0054] As shown in Figures 7 and 8, in some embodiments, an air inlet 51 is provided on the second shell 12, and the circumferential edge of the mounting bracket 2 is radially spaced from the circumferential edge of the second shell 12 to form an air outlet 52. The mounting bracket 2 and the second shell 12 are spaced apart in the thickness direction to form an air passage 50. Since the heat dissipation module 3 is rotatably connected to the mounting bracket 2 and protrudes from the mounting bracket 2, a large amount of space between the mounting bracket 2 and the second shell 12 remains unused. The spaced apart in the thickness direction between the mounting bracket 2 and the second shell 12 to form the air passage 50 improves the utilization rate of space.

[0055] In a specific application scenario, as shown in Figures 3 and 6, the mounting bracket 2 has a protrusion 221 on its second side. The protrusion 221 is hollow and has a screw hole inside. The second housing 12 is correspondingly provided with a fastening hole. The protrusion 221 can be inserted into the fastening hole and fixedly connected to the mounting bracket 2 and the second housing 12 by fasteners. The control plate 6 is provided with a snap-fit ​​slot for engaging the outer circumferential surface of the protrusion 221. The control plate 6 can be snapped onto the protrusion 221 to achieve the positioning of the control plate 6, and then the control plate 6 is fixed to the mounting bracket 2 by fasteners.

[0056] As shown in Figure 9, in a specific example, the wireless charging device 100 is detachably connected to the mounting port 230 of the support assembly 200. The support assembly 200 includes a connected base 210 and a charging base 220, with the charging base 220 inclined relative to the base 210. The mounting port 230 is formed on the charging base 220, allowing the wireless charging device to be placed on the support assembly 200. The support assembly 200 consists of the base 210 and the charging base 220, which can form an L-shape, C-shape, or Z-shape. It is understood that the base 210 is used to place the device on a support. There is a certain angle between the charging base 220 and the base 210, facilitating the placement of the device. The base 210 and the charging base 220 form an L-shape, and the connection between them can be deformed. That is, in a specific embodiment of this example, the support component 200 consists of the base 210, the deformable part and the charging base 220, wherein the deformable part is used to connect the base 210 and the charging base 220, so that the relative positions between the base 210 and the charging base 220 can change.

[0057] The wireless charging device 100 can be separated from the support component 200 and connected to the power-consuming device via the magnetic component 7. It can be used more flexibly and with the movement of the power-consuming device, thus improving the convenience of use.

[0058] Other configurations and operations of the wireless charging device 100 according to embodiments of this application are known to those skilled in the art and will not be described in detail here. In the description of this application, "first feature" and "second feature" may include one or more of the aforementioned features. The up-down direction, left-right direction, and front-back direction are defined according to the up-down direction, left-right direction, and front-back direction shown in the figures.

[0059] In the description of this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature.

[0060] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0061] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A wireless charging device, characterized by, include: Mounting bracket; The heat dissipation module and the wireless charging module are mounted on different sides of the mounting bracket in the thickness direction; The heat dissipation module includes fan blades and a drive component for driving the fan blades to rotate, and the drive component is fixed on the mounting bracket.

2. The wireless charging device of claim 1, wherein, Also includes: The control board is electrically connected to the wireless charging module; The control board is fixed to the side of the mounting bracket on which the heat dissipation module is mounted; The control board has a clearance opening for avoiding the heat dissipation module.

3. The wireless charging device of claim 2, wherein, The heat dissipation module is located in the central area of ​​the mounting bracket.

4. The wireless charging device of claim 2, wherein, The mounting bracket has a notch on its periphery; The notch extends toward the central region of the mounting bracket; The control board and the wireless charging module are electrically connected at the notch.

5. The wireless charging device of claim 1, wherein, The mounting bracket has a through-hole extending along the thickness direction, and the driving component is used to drive airflow through the through-hole.

6. The wireless charging device of claim 5, wherein, The mounting bracket is also provided with a wire clamping part, one end of which is fixed to the edge of the through opening, and the other end of which extends into the through opening; The cable clamp is used to fix the electrical connector of the drive unit.

7. The wireless charging device of claim 1, wherein, It also includes magnetic components; The magnetic component is arranged around the wireless charging module. 8.The wireless charging device of claim 1 or 7, wherein, The mounting bracket is provided with a charging module mounting area and a magnetic component mounting area, both located on the same side of the mounting bracket. The mounting bracket is also provided with a positioning protrusion forming around the charging module mounting area; The magnetic component mounting area is arranged around the outer ring of the positioning protrusion.

9. The wireless charging device of claim 1, wherein, It also includes a housing, which comprises a first housing portion and a second housing portion; The wireless charging module is located between the first housing and the mounting bracket; The heat dissipation module is located between the second shell and the mounting bracket.

10. The wireless charging device of claim 9, wherein, An air inlet is provided on the second shell portion; The circumferential edge of the mounting bracket is radially spaced from the circumferential edge of the second housing to form an air outlet; The mounting bracket and the second housing are spaced apart in the thickness direction to form an air passage.

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