A charging device

Abstract

The application relates to a charging device, which comprises a shell, a coil module, a charging module and a plug pin. The shell comprises a containing cavity, the coil module and the charging module are located in the containing cavity, and the coil module and the charging module are electrically connected, so that the charging module can supply power to the coil module. The plug pin is electrically connected with the charging module. The surface of the shell comprises a bottom surface and a charging surface. The bottom surface is located at the bottom of the shell, and the charging surface is located at the upper part of the shell and is spaced apart from the bottom surface. When the coil module works, it emits a wireless charging signal in the direction of the charging surface to charge an electronic device. The plug pin is installed on the shell and exposed to the bottom surface. The charging surface is inclined relative to the bottom surface. When the charging module charges the electronic device, the side of the electronic device provided with a screen can be inclined to the user, so that the user can watch the screen of the electronic device during the charging process. In the projection perpendicular to the bottom surface, the projection of the charging surface is located in the projection range of the bottom surface, so that the possibility of the electronic device sliding off the charging surface is reduced.

Description

Technical Field

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

[0002] With the development of technology, many electronic devices now feature wireless charging, allowing them to charge their batteries wirelessly. The charging device includes a coil module; when an electronic device is brought close to the coil module, it is charged through electromagnetic induction. However, with existing charging devices, it is inconvenient for users to observe the screen of the electronic device during the charging process. Utility Model Content

[0003] In view of this, this application provides a charging device to solve the problem that it is inconvenient for users to observe the screen of electronic devices during charging.

[0004] This application provides a charging device, the charging device comprising: The housing has a cavity inside, and the surface of the housing includes a bottom surface and a charging surface. The bottom surface is located at the bottom of the housing, and the charging surface is located at the top of the housing and is spaced apart from the bottom surface. A coil module is located in the receiving cavity, and the signal transmitting surface of the coil module is arranged facing the charging surface. A charging module, located in the receiving cavity and electrically connected to the coil module; The plug is mounted on the housing and electrically connected to the charging module, and the plug is exposed on the bottom surface; The charging surface is inclined relative to the bottom surface, and the projection of the charging surface is located within the projection range of the bottom surface in a projection perpendicular to the bottom surface.

[0005] In one possible embodiment, along a direction parallel to the bottom surface, the housing includes two opposing sides, one side having the charging surface disposed thereon, and the end of the charging surface away from the bottom surface being close to the other side. The plane containing the charging surface and the plane containing the bottom surface of the housing form an angle of 30° to 60°.

[0006] In one possible embodiment, the included angle is 40° to 50°.

[0007] In one possible embodiment, the housing includes a shell and a bottom cover, the charging surface is located on the shell, the bottom surface is located on the bottom cover, the coil module is mounted on the side of the shell away from the bottom cover, and the outer contour cross-sectional area of ​​the shell gradually decreases along the direction away from the bottom cover; the coil module and the charging module are spaced apart inside the shell and form a heat dissipation space.

[0008] In one possible embodiment, the housing includes a first main body, a second main body, and a bottom cover. The charging surface is located on the first main body, and the bottom cover is located on the side of the second main body away from the first main body. Along the direction away from the second main body, the outer contour cross-sectional area of ​​the first main body gradually decreases, and along the direction parallel to the bottom surface, the outer contour cross-section of the second main body is rectangular.

[0009] In one possible embodiment, the charging module includes a first circuit board and a plurality of electronic devices, the plurality of electronic devices being mounted on the first circuit board, the first circuit board being fixedly mounted within the receiving cavity; the first circuit board is parallel to the plane containing the bottom surface of the housing, and the distance between the charging surface and the first circuit board gradually increases along a first direction; the height of the plurality of electronic devices gradually increases along the first direction.

[0010] In one possible embodiment, the charging module includes a first circuit board and a transformer, the first circuit board being arranged parallel to the plane containing the charging surface, and the transformer being located on the side of the first circuit board away from the charging surface.

[0011] In one possible embodiment, the housing includes a connecting surface connected to the bottom surface and extending upward therefrom, and a charging surface connected to the connecting surface; the charging device includes a female connector mounted on the housing and electrically connected to the charging module, the female connector being exposed on the connecting surface.

[0012] In one possible embodiment, the housing includes a cover plate, and the housing is further provided with a through hole communicating with the receiving cavity. The cover plate is disposed in the through hole, the charging surface is located on the side of the cover plate away from the receiving cavity, the coil module is located on the side of the cover plate opposite to the charging surface, and at least a portion of the coil module is located within the through hole.

[0013] In one possible embodiment, the coil module includes a coil, a magnetic component, a magnetic shielding component, and a second circuit board. The magnetic shielding component has a first receiving groove and a second receiving groove on the side facing the cover plate. The coil is located in the second receiving groove, and the magnetic component is located in the first receiving groove. The coil is electrically connected to the second circuit board, and the second circuit board is electrically connected to the charging module.

[0014] In one possible embodiment, the second circuit board is mounted on the side of the magnetic shielding member away from the coil and the magnetic member; or, the charging module includes a first circuit board, and the second circuit board is located in the receiving cavity and mounted on the first circuit board.

[0015] In one possible embodiment, the magnetic shielding component has a heat-spreading component on the side opposite to the coil and the magnetic component, and the heat-spreading component is thermally connected to the magnetic shielding component; in the projection along the axial direction of the coil module, the projection of the coil and the projection of the magnetic component are both located within the projection range of the heat-spreading component.

[0016] In one possible embodiment, the charging device includes a heat sink disposed around the charging surface. The heat sink has a mesh structure with multiple mesh openings that communicate with the receiving cavity. A breathable and waterproof membrane is disposed on the heat sink, covering the mesh openings.

[0017] This application relates to a charging device, including a housing, a coil module, a charging module, and pins. The housing includes a receiving cavity, within which both the coil module and the charging module are located and electrically connected, enabling the charging module to supply power to the coil module. The pins are electrically connected to the charging module. The housing surface includes a bottom surface and a charging surface. The bottom surface is located at the bottom of the housing, while the charging surface is located at the top of the housing and spaced apart from the bottom surface. When the coil module is working, it emits a wireless charging signal towards the charging surface to charge the electronic device. The pins are mounted on the housing and exposed on the bottom surface. The charging surface is inclined relative to the bottom surface, allowing the side of the electronic device with a screen to tilt towards the user while the charging module is charging, facilitating viewing the screen during charging. In a projection perpendicular to the bottom surface, the projection of the charging surface falls within the projection range of the bottom surface, reducing the possibility of the electronic device slipping off the charging surface. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments 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.

[0019] Figure 1 This is a schematic diagram of the structure of the charging device provided in the embodiments of this application; Figure 2 A cross-sectional view of the charging device provided in an embodiment of this application; Figure 3 An exploded view of the charging device provided in the embodiments of this application; Figure 4 A cross-sectional view of the housing provided in an embodiment of this application; Figure 5 A cross-sectional view of another embodiment of the charging device provided in this application; Figure 6 A cross-sectional view of the magnetic shielding component provided in the embodiments of this application; Figure 7 This is a schematic diagram of the structure of one embodiment of the charging module of this application.

[0020] Figure label: 1-Outer shell; 11-Receiving cavity; 12-Through hole; 13-Shell; 131-First Main Body Section; 132 - Second Main Body Section; 14-Bottom cover; 15 - Protrusion; 2-Coil module; 21-Cover plate; 22-coil; 23-Magnetic components; 24 - Magnetic shielding components; 241 - First receiving tank; 242 - Second receiving tank; 25 - Second circuit board; 3-Charging module; 31-Electronic devices; 311 - Transformer; 312 - High-voltage electrolytic capacitor; 313 - Low-voltage solid capacitor; 314 - Main control chip; 32 - First circuit board; 4-Pin; 5-Female connector; 6-Hot soaking unit. Detailed Implementation

[0021] To better understand the technical solution of this application, the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0022] It should be understood that the described embodiments are merely some, not all, of the embodiments in this application. All other embodiments obtained by those skilled in the art based on the embodiments in this application without inventive effort are within the scope of protection of this application.

[0023] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The singular forms “a,” “the,” and “the” used in the embodiments of this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0024] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0025] like Figures 1 to 3 As shown, this application provides a charging device, including a housing 1, a coil module 2, and a charging module 3. The housing 1 includes a receiving cavity 11 and a through hole 12. The coil module 2 is connected to the side wall of the through hole 12 so that the coil module 2 is mounted on the housing 1. The charging module 3 is located in the receiving cavity 11 and is electrically connected to the coil module 2, so that the charging module 3 can supply power to the coil module 2, enabling the coil module 2 to wirelessly charge the electronic device through electromagnetic induction. The outer surface of the housing 1 includes a bottom surface and a charging surface. The bottom surface is located at the bottom of the housing 1, and the charging surface is located at the top of the housing 1, with the charging surface and the bottom surface spaced apart. When charging through the charging device, the electronic device is placed on the charging surface, and the signal transmitting surface of the coil module 2 is arranged towards the charging surface, so that the coil module 2 can transmit a wireless charging signal towards the charging surface. The charging surface is inclined relative to the bottom surface.

[0026] During the charging process of the charging device for the electronic device, the bottom surface of the outer casing 1 is parallel or perpendicular to the horizontal plane. The electronic device is placed on the charging surface, which is tilted so that it is tilted relative to the horizontal plane. After the electronic device is placed on the charging surface, the side of the electronic device without a screen contacts the charging surface, while the side with a screen can be tilted towards the user, making it convenient for the user to view the screen of the electronic device during the charging process.

[0027] In the projection perpendicular to the bottom surface, the projection range of the charging surface is within the projection range of the bottom surface, making the area of ​​the bottom surface larger than the area of ​​the charging surface. When the electronic device is placed on the charging surface, the possibility of the electronic device slipping can be reduced.

[0028] Along a direction parallel to the bottom surface, the outer casing 1 includes two opposing sides, one of which has a charging surface on its surface. The end of the charging surface away from the bottom surface is close to the other side surface, so that there is an angle between the charging surface and the plane containing the bottom surface.

[0029] In one possible embodiment, the angle between the plane containing the charging surface and the plane containing the bottom surface of the housing 1 is 30° to 60°.

[0030] Taking the charging device's bottom surface being parallel to the horizontal plane during charging as an example, the angle between the charging surface and the horizontal plane is 30° to 60°. After the electronic device is placed on the charging surface, the side of the electronic device with the screen can tilt towards the user, making it easier for the user to view the screen during charging. When the electronic device is placed on the charging surface of the housing 1, the angle between the charging surface and the horizontal plane is greater than or equal to 30°, making the angle between the user's line of sight and the screen of the electronic device close to 90°, which is convenient for the user to view the content on the screen. If the angle between the charging surface and the horizontal plane is less than 30°, the angle between the user's line of sight and the screen of the electronic device is small, and the electronic device is easily affected by ambient light, which can easily lead to reflections or glare, resulting in a poor viewing experience. An angle between the charging surface and the horizontal plane is less than or equal to 60°, which can increase the friction between the electronic device and the charging surface, reducing the possibility of the electronic device slipping. Therefore, the angle between the plane where the charging surface is located and the plane where the housing 1 is located can be 30°, 45°, 60°, etc., which makes it easier for the user to view the screen of the electronic device and also reduces the possibility of the electronic device slipping off the charging device.

[0031] In one possible embodiment, the angle between the plane containing the charging surface and the plane containing the bottom surface of the outer casing 1 is preferably 45°.

[0032] During charging, the charging device can be placed vertically or horizontally. When vertical, the bottom surface of the outer casing 1 is parallel to the horizontal plane; when horizontal, the bottom surface is perpendicular to the horizontal plane. The angle between the plane containing the charging surface and the plane containing the bottom surface of the outer casing 1 is 45°. This ensures that the angle between the charging surface and the horizontal plane is 45° in both vertical and horizontal positions, facilitating user viewing of the electronic device's screen and reducing the possibility of the device slipping. Even with a deviation of ±5° from this 45° angle, a similar technical effect can be achieved; that is, the angle between the plane containing the charging surface and the plane containing the bottom surface of the outer casing 1 can be between 40° and 50°.

[0033] like Figure 2 and Figure 3 As shown, in one possible embodiment, the housing 1 includes a housing 13 and a bottom cover 14, with the bottom surface located on the bottom cover 14. The coil module 2 is mounted at the end of the housing 13, and the bottom cover 14 is mounted on the side of the housing 13 away from the charging surface. The charging device includes a plug 4, which is mounted on the side wall of the housing 13 or the bottom cover 14. When the plug 4 is mounted on the bottom cover 14, the plug 4 protrudes from the bottom surface to facilitate plugging the plug 4 into a socket.

[0034] During charging, pin 4 is inserted into the socket, which is located on a horizontal or vertical plane. Pin 4 is located on the housing 13 or the bottom cover 14, so that the charging device can be placed in a vertical or horizontal state whether the pin 4 is inserted into a socket on a horizontal plane or a socket on a vertical plane.

[0035] When the pin 4 is installed on the side wall of the housing 13, the side wall with the pin 4 is opposite to the coil module 2.

[0036] When the pin 4 is plugged into the socket, the side of the housing 1 with the charging surface is located away from the plane where the socket is located, which makes it easier for the electronic device to be placed on the charging surface of the housing 1.

[0037] In one possible embodiment, the angle between the plane where the charging surface is located and the insertion direction of the pin 4 is 30° to 60°, so that after the pin 4 of the charging device is inserted into the socket, the angle between the charging surface and the horizontal plane is 30° to 60°, which makes it easier for the user to view the screen of the electronic device and also reduces the possibility of the electronic device slipping off the charging device.

[0038] like Figure 2 and Figure 3 As shown, in one possible embodiment, the receiving cavity 11 is in communication with the through hole 12, such that at least a portion of the coil module 2 is located within the through hole 12.

[0039] The coil module 2 and the charging module 3 can be electrically connected by wires. The coil module 2 is located at least partially within the receiving cavity 11 to facilitate the electrical connection between the coil module 2 and the charging module 3.

[0040] like Figure 4 As shown, the cross-sectional area of ​​the outer contour of the housing 13 gradually decreases along the direction away from the bottom cover 14, which reduces the volume of the charging device and makes it easier to carry.

[0041] The coil module 2 is installed at the end of the housing 13 away from the bottom cover 14. Along the direction away from the bottom cover 14, the cross-sectional area of ​​the outer contour of the housing 13 gradually decreases, which can reduce the structure around the charging surface, thereby reducing the possibility of interference between the housing 13 and the electronic device and improving the stability during charging. Taking a smartwatch as an example, when the main body of the smartwatch is placed on the charging surface for wireless charging, the watch strap connected to the main body of the smartwatch will rest on the outer surface of the housing 13. Since the cross-sectional area of ​​the outer contour of the charging surface gradually decreases, forming a shape that is smaller at the top and larger at the bottom, the watch strap will not be interfered with by the structure around the charging surface and will not be arched, thereby avoiding the problem of reduced charging efficiency caused by the main body of the smartwatch being far away from the charging surface.

[0042] like Figure 2As shown, the coil module 2 and the charging module 3 are spaced apart inside the housing 13, forming a heat-equalizing space between them. This reduces the possibility of heat generated by the charging module 3 being conducted to the coil module 2, lowers the temperature of the electronic device during charging, and thus improves the charging efficiency of the charging device for the electronic device.

[0043] The end of the housing 13 away from the bottom cover 14 is arc-shaped, which expands the heat dissipation space on one side of the coil module 2 along the direction parallel to the bottom cover 14, further reducing the possibility of heat generated by the charging module 3 being conducted to the coil module 2.

[0044] like Figure 2 and Figure 4 As shown, in one possible embodiment, the housing 13 of the outer casing 1 includes a first main body portion 131 and a second main body portion 132. The second main body portion 132 is connected to the bottom cover 14, and the charging surface is located at the end of the first main body portion 131 away from the second main body portion 132. The second main body portion 132 is a hollow columnar structure, wherein the cross-sectional area of ​​the end near the bottom cover 14 is the same as the cross-sectional area of ​​the end near the first main body portion 131. The first main body portion 131 is a hollow conical structure, and the cross-sectional area of ​​the first main body portion 131 gradually decreases along the direction away from the second main body portion 132.

[0045] The charging module 3 is located within the second main body 132, which has a columnar structure to increase the space within it, thereby increasing the installation space for the charging module 3. The first main body 131 is provided with a through hole 12, allowing the charging surface to be located within the first main body 131. The cross-sectional area of ​​the first main body 131 gradually decreases, causing the sidewalls of the first main body 131 to be inclined, which facilitates the inclined installation of the coil module 2.

[0046] When the charging device charges an electronic device, the plug 4 needs to be inserted into the socket hole. Existing sockets may have multiple sets of sockets to plug in multiple electrical appliances. Along the direction parallel to the bottom cover 14, the cross-section of the outer contour of the second main body 132 is rectangular, which can reduce the space occupied by the charging device on the socket and facilitate plugging it into the same socket as other electrical appliances.

[0047] In one possible embodiment, the second body portion 132 has a rounded chamfer to enhance the appearance and texture of the charging device.

[0048] like Figure 2 As shown, in one possible embodiment, the charging module 3 includes a first circuit board 32 and a plurality of electronic devices 31. The first circuit board 32 is connected to the inner wall of the receiving cavity 11, and the plurality of electronic devices 31 are mounted on the first circuit board 32 and interconnected through the first circuit board 32.

[0049] The sidewall of the receiving cavity 11 is provided with a plurality of protrusions 15, which are spaced apart circumferentially around the receiving cavity 11. After the charging device is installed in the receiving cavity 11, the plurality of protrusions 15 abut against the sidewall of the first circuit board 32, so that the first circuit board 32 and the protrusions 15 are interference-fitted, thus fixing the first circuit board 32 in the receiving cavity 11. Preferably, the protrusions 15 extend along the height direction of the charging device on the inner wall of the receiving cavity 11. Along the circumference of the charging device, the plurality of protrusions 15 can be arranged axially symmetrically or centrally symmetrically, so that the first circuit board 32 is more stable after being installed in the receiving cavity 11.

[0050] In one possible embodiment, the receiving cavity 11 has a plurality of fixing posts, which clamp the first circuit board 32 along the thickness direction of the first circuit board 32 so as to fix the first circuit board 32 in the receiving cavity.

[0051] A portion of the multiple electronic components 31 are mounted on the side of the first circuit board 32 closest to the coil module 2, while the other portion is mounted on the side of the first circuit board 32 furthest from the coil module 2. The multiple electronic components 31 include a transformer 311, a high-voltage electrolytic capacitor 312, a low-voltage solid-state capacitor 313, and a main control chip 314. Specifically, the transformer 311, high-voltage electrolytic capacitor 312, and low-voltage solid-state capacitor 313 are mounted on the side of the first circuit board 32 closest to the coil module 2, while the main control chip 314 is mounted on the side of the first circuit board 32 furthest from the coil module 2. During the operation of the charging device, the multiple electronic components 31 will generate a large amount of heat. Distributing the multiple electronic components 31 on both sides of the first circuit board 32 can disperse the heat source and reduce the possibility of excessively high temperatures within the receiving cavity 11 due to concentrated heat. Figure 2 As shown, in one possible embodiment, the first circuit board 32 is arranged parallel to the bottom surface of the housing 1, and a plurality of electronic devices 31 are respectively mounted on both sides of the first circuit board 32.

[0052] The first circuit board 32 is fixed in the receiving cavity 11 by interference fit with the protrusion 15. The protrusion 15 protrudes from the side wall of the receiving cavity 11. The first circuit board 32 is parallel to the bottom wall of the outer shell 1 to facilitate the installation of the first circuit board 32.

[0053] The charging surface is tilted along the first direction X, so that the distance between the charging surface and the bottom surface of the outer casing 1 gradually increases. For example... Figure 2 As shown, in one possible embodiment, the height of a plurality of electronic devices 31 spaced apart along a first direction X gradually increases.

[0054] During the charging process, the electronic device 31 generates heat. Along the first direction X, the height of the multiple electronic devices 31 gradually increases, which can increase the distance between each position of the charging surface in the coil module 2 and the electronic device 31, thereby reducing the possibility of the heat generated by the electronic device 31 being conducted to the charging surface. The charging surface in the coil module 2 is in contact with the electronic device, which can further reduce the possibility of the heat generated by the electronic device 31 being conducted to the electronic device, thus improving the charging efficiency of the electronic device.

[0055] like Figure 5 As shown, in one possible embodiment, the first circuit board 32 is arranged parallel to the charging surface, and a plurality of electronic devices 31 are respectively mounted on both sides of the first circuit board 32.

[0056] The parallel alignment of the first circuit board 32 with the coil module 2 increases the spacing between the electronic device 31 and the coil module 2. The electronic devices 31 that generate a lot of heat (such as transformer 311, high voltage electrolytic capacitor 312, etc.) are placed on the first circuit board 32 away from the charging surface, which reduces the possibility of heat generated by the electronic device 31 being conducted to the charging surface. This helps to reduce the temperature of the charging surface and the electronic device, thereby improving the charging efficiency of the charging device.

[0057] like Figure 2 and Figure 3 As shown, in one possible embodiment, the housing 1 includes a connecting surface located on the outer surfaces of the first main body portion 131 and the second main body portion 132. The connecting surface is connected to the bottom surface and extends upward, so that the charging surface is connected to the connecting surface. The charging device includes a female connector 5, which is mounted on the housing 1 and electrically connected to the charging module 3.

[0058] The outer casing 1 has a connection hole that aligns with the female connector 5, allowing the female connector 5 to connect to an external data cable. The female connector 5, electrically connected to the charging module 3, serves as a power input terminal. It connects to an external power source via the data cable; this external power source can be a portable power bank or a fixed power source, supplying power to the coil module 2 through the charging module 3. This enables the charging device to charge electronic devices via the external power source. The female connector 5 can also function as a power output terminal, connecting to an external electrical appliance via the data cable. This allows the charging device to both charge electronic devices via the coil module 2 and supply power to external electrical appliances via the female connector 5.

[0059] In one possible embodiment, the female connector 5 and the charging surface are located on the same side of the housing 1. The charging surface is inclined, so the female connector 5 can be disposed on the side wall of the housing 1 on the side where the through hole 12 is provided, so that the female connector 5 and the charging surface are located on the same side of the housing 1.

[0060] When the charging device is charging the electronic device, the side of the housing 1 with the charging surface needs to face the user. The side with the charging surface is the front side of the charging device, which makes it easy for the user to view the contents of the electronic device. The female connector 5 is located on the same side of the charging device as the charging surface, so that the female connector 5 is also located on the front side facing the user, which makes it easy for the user to connect an external data cable through the female connector 5.

[0061] When the distance between the female connector 5 and the charging module 3 is far, the female connector 5 cannot be directly installed on the first circuit board 32 of the charging module 3. A circuit board for installing the female connector 5 can be provided at the tail of the female connector 5, and then the circuit board of the female connector 5 is electrically connected to the first circuit board 32.

[0062] In one possible embodiment, the number of female connectors 5 can be set to multiple, for example, female connectors 5 are provided on the front and rear sides of the charging device to meet the charging needs of multiple device users.

[0063] like Figure 5 and Figure 6 As shown, in one possible embodiment, the outer casing 1 includes a cover plate 21 disposed within the through hole 12, and the sidewall of the cover plate 21 is connected to the sidewall of the through hole 12. The charging surface is located on the side of the cover plate 21 away from the receiving cavity 11, and the coil module 2 is located on the side of the cover plate 21 opposite to the charging surface. The coil module 2 includes a coil 22, a magnetic element 23, and a magnetic shielding element 24. A first receiving groove 241 and a second receiving groove 242 are provided on one side of the magnetic shielding element 24. The second receiving groove 242 is arranged around the first receiving groove 241. The magnetic element 23 is disposed within the first receiving groove 241, and the coil 22 is disposed within the second receiving groove 242, so that the coil 22 and the magnetic element 23 are located on the same side of the magnetic shielding element 24. The side of the magnetic shielding element 24 with the receiving groove faces the cover plate 21.

[0064] When the charging device charges the electronic device, current flows through the coil 22, wirelessly charging the electronic device through electromagnetic induction. The magnetic component 23 and the coil 22 are respectively placed in the first receiving groove 241 and the second receiving groove 242 of the magnetic shielding component 24. This reduces the possibility of the magnetic component 23 disturbing the magnetic field generated by the coil 22, thus improving the stability of the charging process. The side of the electronic device without a screen has a metal material such as iron, nickel, or cobalt that can be attracted by a magnet. The magnetic component 23 can attract the electronic device, allowing it to be placed on the charging surface via the coil module 2, reducing the possibility of the electronic device slipping. The cover plate 21 covers the first receiving groove 241 and the second receiving groove 242 in the magnetic shielding component 24, separating the electronic device from the magnetic component 23 and the coil 22. This reduces the possibility of the electronic device damaging the magnetic component 23 and the coil 22, and also reduces the possibility of the magnetic shielding component 24 scratching the electronic device.

[0065] The side of the cover plate 21 away from the magnetic shield 24 may have a groove or other structure, depending on the shape of the electronic device, to increase the contact area between the electronic device and the charging surface, making the electronic device fit more tightly and reducing the possibility of the electronic device slipping. The charging surface may also have a pattern or anti-slip coating to increase surface friction and further reduce the possibility of the electronic device slipping.

[0066] The coil module 2 also includes a second circuit board 25, the coil 22 is electrically connected to the second circuit board 25, and the second circuit board 25 is electrically connected to the charging module 3, so that the charging module 3 can supply power to the coil 22 through the second circuit board 25.

[0067] In one possible embodiment, the second circuit board 25 is mounted on the side of the magnetic shielding 24 where the coil 22 and the magnetic element 23 are not provided.

[0068] Both the second circuit board 25 and the coil 22 are mounted on the magnetic shielding component 24, which facilitates the electrical connection between the coil 22 and the second circuit board 25 and also reduces the installation difficulty of the second circuit board 25.

[0069] like Figure 7 As shown, in one possible embodiment, the second circuit board 25 is mounted on the charging module 3.

[0070] During the charging process of the charging device for the electronic device, the second circuit board 25 will generate heat. The second circuit board 25 is installed on the first circuit board 32 in the charging module 3, which can increase the distance between the second circuit board 25 and the cover plate 21, reduce the possibility of the heat generated by the second circuit board 25 being conducted to the electronic device, and help improve the charging efficiency of the charging device for the electronic device.

[0071] like Figure 3 As shown, in one possible embodiment, the magnetic shielding member 24 has a heat-spreading member 6 on the side opposite to the coil 22 and the magnetic member 23, and the heat-spreading member 6 is thermally connected to the magnetic shielding member 24. In the projection along the axial direction of the coil module 2 (i.e., the direction perpendicular to the plane where the charging surface is located), the projections of the coil 22 and the magnetic member 23 are both located within the projection range of the heat-spreading member 6.

[0072] When the charging device charges the electronic device, current flows through the coil 22, charging the electronic device through electromagnetic induction. During charging, heat is generated in the coil 22, causing the temperature at the location of the coil 22 in the coil module 2 to rise. The heat generated by the coil 22 can be conducted to the electronic device through the cover plate 21. When the temperature reaches a threshold set by the electronic device, the charging power of the charging device will decrease, resulting in a longer charging time. A heat spreader 6 is provided on the side of the magnetic component 23 and the coil 22 near the charging module 3, allowing the heat generated by the coil 22 to be conducted to the heat spreader 6. The projections of the coil 22 and the magnetic component 23 are both within the projection range of the heat spreader 6, enabling heat conduction between the coil 22, the magnetic component 23, and the heat spreader 6. The heat spreader 6 absorbs the heat generated by the coil 22 and then conducts it to the magnetic component 23 and the outer casing 1, reducing the concentration of heat generated by the coil module 2 at the location of the coil 22, which could lead to a higher local temperature in the coil module 2 and potentially lower charging efficiency for the electronic device.

[0073] The heat-spreading element 6 is located on the side of the magnetic shielding element 24 away from the coil 22 and the magnetic element 23. This reduces the possibility of heat generated by the coil 22 being conducted to the electronic device through the heat-spreading element 6, which helps to reduce the temperature of the electronic device during charging and improve charging efficiency.

[0074] In one possible embodiment, the charging device includes a heat sink mounted on the housing 1 and arranged around the charging surface. When the housing 1 has a through hole 12 and a cover plate 21, the heat sink is arranged around the through hole 12 or the cover plate 21. The heat sink has a mesh structure with multiple mesh holes, allowing the receiving cavity 11 to communicate with the external environment. This facilitates the conduction of heat from the receiving cavity 11 to the external environment through the heat sink, thereby reducing the temperature inside the receiving cavity 11 and the temperature of the coil module 2, which is beneficial for improving the charging power.

[0075] In one possible embodiment, a breathable and waterproof membrane is provided on the heat sink, the breathable and waterproof membrane being located on the side of the heat sink facing or away from the receiving cavity 11, and completely covering the mesh in the heat sink.

[0076] Waterproof and breathable membranes can be selected from pure e-PTFE waterproof and breathable membranes, waterproof and breathable composite membranes, oleophobic waterproof and breathable membranes, ePTFE water pressure resistant breathable membranes (ES687), PTFE waterproof and breathable membranes (CNF-PMTY0230), and PEBAX waterproof and breathable membranes (MH1657, MV1074, MV3000), etc., to ensure the waterproof performance of the charging device.

[0077] In one possible embodiment, the breathable and waterproof membrane has opposing front and back sides, the front side being able to block liquid from passing through, while the back side is breathable. When the breathable and waterproof membrane covers the mesh in the heat sink, the front side of the breathable and waterproof membrane faces the outside of the charging device to prevent external liquid from entering the receiving cavity 11.

[0078] The heat sink has mesh holes that communicate with the housing cavity 11, which can affect the waterproof performance of the charging device. Water entering the housing cavity 11 can cause the charging module 3 to short circuit. By setting a breathable and waterproof membrane on the heat sink, the heat inside the housing cavity 11 can be carried away by air circulation, and the waterproof performance of the charging device can be improved, reducing the possibility of water entering the housing cavity 11.

Claims

1. A charging device, characterized in that, The charging device includes: The outer shell (1) has a cavity (11) inside. The surface of the outer shell (1) includes a bottom surface and a charging surface. The bottom surface is located at the bottom of the outer shell (1), and the charging surface is located at the top of the outer shell (1) and is spaced apart from the bottom surface. A coil module (2) is located in the receiving cavity (11), and the signal transmitting surface of the coil module (2) is arranged facing the charging surface. A charging module (3) is located in the receiving cavity (11) and is electrically connected to the coil module (2); The plug (4) is installed on the housing (1), the plug (4) is electrically connected to the charging module (3), and the plug (4) is exposed on the bottom surface; The charging surface is inclined relative to the bottom surface, and the projection of the charging surface is located within the projection range of the bottom surface in a projection perpendicular to the bottom surface.

2. The charging device according to claim 1, characterized in that, Along a direction parallel to the bottom surface, the outer casing (1) includes two opposing sides, one of which is provided with the charging surface, and the end of the charging surface away from the bottom surface is close to the other side. The plane where the charging surface is located has an angle with the plane where the bottom surface of the outer casing (1) is located, and the angle is 30° to 60°.

3. The charging device according to claim 2, characterized in that, The included angle is 40° to 50°.

4. The charging device according to any one of claims 1 to 3, characterized in that, The outer casing (1) includes a housing (13) and a bottom cover (14). The charging surface is located on the housing (13), and the bottom surface is located on the bottom cover (14). The coil module (2) is installed on the side of the housing (13) away from the bottom cover (14). Along the direction away from the bottom cover (14), the outer contour cross-sectional area of ​​the housing (13) gradually decreases. The coil module (2) and the charging module (3) are spaced apart inside the housing (13) and form a heat dissipation space.

5. The charging device according to any one of claims 1 to 3, characterized in that, The outer casing (1) includes a first main body (131), a second main body (132), and a bottom cover (14). The charging surface is located on the first main body (131), and the bottom cover (14) is located on the side of the second main body (132) away from the first main body (131). Along the direction away from the second main body (132), the outer contour cross-sectional area of ​​the first main body (131) gradually decreases, and along the direction parallel to the bottom surface, the outer contour cross-section of the second main body (132) is rectangular.

6. The charging device according to any one of claims 1 to 3, characterized in that, The charging module (3) includes a first circuit board (32) and a plurality of electronic devices (31). The plurality of electronic devices (31) are mounted on the first circuit board (32), and the first circuit board (32) is fixedly mounted in the receiving cavity (11). The first circuit board (32) is parallel to the plane where the bottom surface of the outer shell (1) is located. Along the first direction, the distance between the charging surface and the first circuit board (32) gradually increases. The height of the plurality of electronic devices (31) gradually increases along the first direction.

7. The charging device according to any one of claims 1 to 3, characterized in that, The charging module (3) includes a first circuit board (32) and a transformer (311). The first circuit board (32) is arranged parallel to the plane where the charging surface is located, and the transformer (311) is located on the side of the first circuit board (32) away from the charging surface.

8. The charging device according to any one of claims 1 to 3, characterized in that, The housing (1) includes a connecting surface, which is connected to the bottom surface and extends upward, and the charging surface is connected to the connecting surface; the charging device includes a female connector (5), which is installed on the housing (1) and electrically connected to the charging module (3), and the female connector (5) is exposed on the connecting surface.

9. The charging device according to any one of claims 1 to 3, characterized in that, The outer casing (1) includes a cover plate (21), and the outer casing (1) is also provided with a through hole (12) communicating with the receiving cavity (11). The cover plate (21) is located in the through hole (12). The charging surface is located on the side of the cover plate (21) away from the receiving cavity (11). The coil module (2) is located on the side of the cover plate (21) away from the charging surface, and at least a portion of the coil module (2) is located in the through hole (12).

10. The charging device according to claim 9, characterized in that, The coil module (2) includes a coil (22), a magnetic component (23), a magnetic shielding component (24), and a second circuit board (25). The magnetic shielding component (24) has a first receiving groove (241) and a second receiving groove (242) on the side facing the cover plate (21). The coil (22) is located in the second receiving groove (242), and the magnetic component (23) is located in the first receiving groove (241). The coil (22) is electrically connected to the second circuit board (25), and the second circuit board (25) is electrically connected to the charging module (3).

11. The charging device according to claim 10, characterized in that, The second circuit board (25) is mounted on the side of the magnetic shielding member (24) away from the coil (22) and the magnetic member (23); or, the charging module (3) includes a first circuit board (32), and the second circuit board (25) is located in the receiving cavity (11) and mounted on the first circuit board (32).

12. The charging device according to claim 10, characterized in that, The magnetic shielding component (24) has a heat-spreading component (6) on the side away from the coil (22) and the magnetic component (23), and the heat-spreading component (6) is thermally connected to the magnetic shielding component (24); in the projection along the axial direction of the coil module (2), the projection of the coil (22) and the projection of the magnetic component (23) are both located within the projection range of the heat-spreading component (6).

13. The charging device according to any one of claims 1 to 3, characterized in that, The charging device includes a heat sink, which is arranged around the charging surface. The heat sink has a mesh structure with multiple mesh holes. The mesh holes are connected to the receiving cavity (11). A breathable and waterproof membrane is provided on the heat sink, which covers the mesh holes.

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