Magnetic vehicle-mounted wireless charger

Abstract

The present application relates to a magnetic vehicle-mounted wireless charger, comprising a panel, an upper cover located below the panel, and a base connected to the upper cover to form an accommodating cavity, wherein a vent hole is formed in the base, and a heat dissipation fan module is mounted in the vent hole; a circuit board is arranged in the accommodating cavity, and a first air channel is formed between the circuit board and the base; the base is provided with a first air inlet, and the first air inlet is communicated with the first air channel; a side wall of the upper cover is provided with a second air channel, and the second air channel is located above the heat dissipation fan module; the panel is provided with a support platform, a side surface of the support platform is provided with a second air inlet, and the second air inlet is communicated with the second air channel. The present application solves the problem of heating of a mobile phone and a wireless magnetic charging module during charging of the magnetic vehicle-mounted wireless charger, thereby ensuring the stability of charging efficiency.

Description

Magnetic attraction vehicle-mounted wireless charger TECHNICAL FIELD

[0001] The present application relates to the field of wireless chargers, in particular to a magnetic attraction vehicle-mounted wireless charger. BACKGROUND

[0002] With the development of smart phones, most mobile phones have wireless charging function, and the magnetic attraction vehicle-mounted wireless charger is rapidly developed due to its convenience and safety as an application scenario adapting to the wireless charging of mobile phones. However, the heat generated during wireless charging will cause a series of problems such as reduction of charging efficiency and poor stability of the equipment, and therefore how to reduce the heat generated during charging is an urgent problem to be solved at present. In the prior art, a heat dissipation module is often added below the wireless magnetic attraction charging module for heat dissipation, but the problem of heat generation during mobile phone charging cannot be well solved. In the prior art, an air inlet is formed on the front surface of the charging panel, and the mobile phone is ventilated and cooled by the heat dissipation module, but when the mobile phone is charged on the panel, the air inlet will be covered, resulting in reduced air circulation and poor heat dissipation effect of the mobile phone. CONTENT OF THE UTILITY MODEL

[0003] In view of the above problems, the purpose of the present application is to provide a magnetic attraction vehicle-mounted wireless charger to solve the problem of heat generation of the mobile phone and the wireless magnetic attraction charging module during the charging process of the magnetic attraction vehicle-mounted wireless charger and to ensure the stability of the charging efficiency.

[0004] The purpose of the present application is achieved by the following technical solutions:

[0005] The magnetic attraction vehicle-mounted wireless charger comprises a panel, an upper cover located below the panel, a base connected with the upper cover to form a cavity, the base is provided with a ventilation hole, and a heat dissipation fan module is installed in the ventilation hole; an electric circuit board is arranged in the cavity, a first air duct is formed between the electric circuit board and the base; the base is provided with a first air inlet, the first air inlet is communicated with the first air duct; a second air duct is arranged on the side wall of the upper cover, and the second air duct is located above the heat dissipation fan module; the panel is provided with a support table, a second air inlet is arranged on the side surface of the support table, and the second air inlet is communicated with the second air duct.

[0006] Two air ducts are designed in the internal cavity of the charger, the first air duct is in communication with the circuit board and the cavity where the circuit board is located, and the second air duct is in communication with the charging device placed on the panel, when the charging device is charging, the heat dissipation fan module is started to provide air source, the flowing air carries away the heat generated by the wireless charger and the charging device through the first air duct and the second air duct. A support table is arranged on the panel to assist in supporting the charging device. At the same time, a second air inlet is arranged on the side of the support table, when the charging device is placed on the panel for charging, the second air inlet is located below the charging device, and the flowing air source carries away the heat generated by the charging device from the second air inlet. The second air inlet is arranged on the side of the support table instead of being arranged on the front surface of the panel, which avoids the phenomenon that the air inlet is covered by the charging device placed on the panel, thereby increasing the air circulation and improving the heat dissipation effect of the charging device.

[0007] Further, a heat dissipation support is arranged in the cavity, the heat dissipation support is located above the circuit board, the bottom of the heat dissipation support is provided with a plurality of heat dissipation fins, and the circuit board is provided with fin holes, the heat dissipation fins penetrate into the first air duct through the fin holes.

[0008] The heat dissipation support not only plays a supporting role, but also is used for heat conduction, and the heat dissipation fins improve the heat conduction efficiency, the heat dissipation fins exchange heat with air in the first air duct to spread the heat in the air, and the flowing air carries away the heat, thereby reducing the temperature in the wireless charger during the charging process and improving the charging efficiency and stability.

[0009] Further, a partition plate is arranged between the second air duct and the heat dissipation support, and the partition plate separates the second air duct from the heat dissipation support and the circuit board.

[0010] The second air duct, the heat dissipation support and the circuit board are separated by the partition plate, the second air inlet of the panel is not in communication with the circuit board in the cavity, and if water, debris and other sundries fall into the second air duct, the sundries will not fall on the circuit board, thereby avoiding the short circuit of the circuit board.

[0011] Further, a wireless magnetic attraction charging module is arranged on the heat dissipation support, the wireless magnetic attraction charging module comprises a coil, a magnetic sheet and a magnetic ring, the magnetic sheet is provided with a coil groove, the coil is arranged in the coil groove, the upper surface of the heat dissipation support is provided with a convex magnetic groove, the magnetic sheet is arranged in the magnetic groove, a magnetic ring groove is formed between the edge of the magnetic groove and the edge of the magnetic sheet, and the magnetic ring is arranged in the magnetic ring groove.

[0012] The coil is controlled by the circuit board to realize the function of wireless charging through magnetic-electric conversion. The magnetic sheet shields the magnetic field generated by the energized coil to reduce the magnetic field loss generated by the coil and emit the magnetic field to the charging device as much as possible. The magnetic ring provides magnetic attraction function to magnetically attract and fix the charging device on the panel to avoid movement affecting the charging efficiency. The wireless magnetic attraction charging module is installed and fixed in the magnetic groove of the heat dissipation support. The heat generated by the wireless magnetic attraction charging module during the charging process is conducted out through the heat dissipation support, thereby reducing the charging temperature and ensuring the stability of the charging efficiency.

[0013] Further, the upper cover is provided with a boss, and the magnetic groove is located in the boss.

[0014] The wireless magnetic attraction charging module is installed in the magnetic groove of the heat dissipation support and placed in the boss of the upper cover to form a closed structure with the boss to protect the internal wireless magnetic attraction charging module from being damaged.

[0015] Further, the top of the boss is provided with a heat conduction sheet, and the magnetic groove abuts against the heat conduction sheet.

[0016] The heat conduction sheet is arranged at the top of the boss, the front surface of the heat conduction sheet is in contact with the charging device, and the back surface of the heat conduction sheet is in contact with the heat dissipation support. The heat generated by the charging device is conducted to the heat dissipation support through the heat conduction sheet, thereby conducting and dissipating part of the heat to reduce the temperature of the charging device and ensure the stability of the charging efficiency.

[0017] Further, the panel is provided with a hollow, the boss passes through the hollow, and the second air inlet is opposite to the boss.

[0018] The boss of the upper cover passes through the hollow of the panel, and the lower surface of the panel is tightly attached to the upper cover. The second air inlet on the side of the support table is opposite to the boss. After the charging device is placed on the boss, the second air inlet is located below the charging device, and the flowing air source draws away the heat generated by the charging device from the second air inlet.

[0019] Further, the support table is arranged at a position adjacent to the hollow, and the upper surface of the support table is flush with the top of the boss.

[0020] The upper surface of the support table on the panel is flush with the boss of the upper cover to assist in supporting the charging device and ensure the stability of the charging device.

[0021] Further, the boss is provided with a magnetic block groove beside the boss, the heat conduction sheet covers the magnetic block groove, and a magnetic block is arranged in the magnetic block groove.

[0022] In order to enhance the magnetic attraction force and more stably fix the mobile phone on the panel, a magnetic block cooperating with the magnetic ring is arranged, the magnetic block is fixedly installed in the magnetic block groove beside the boss, and the magnetic block is hidden by the heat conduction sheet.

[0023] Further, the hollowed side wall is provided with a limiting groove, and the side wall opposite to the magnetic block groove is clamped in the limiting groove.

[0024] The limiting structure formed by the limiting groove and the magnetic block groove can realize accurate positioning and installation of the panel. When the panel cover is arranged on the upper cover, the hollowed portion passes through the boss and is clamped on the side wall of the magnetic block groove through the limiting groove, so as to prevent the panel from deviating. The panel and the upper cover are provided with communicating screw holes, and the two are fixed and combined through screws.

[0025] Further, the base is provided with a support plate for supporting the circuit board, and the support plate is provided with a positioning pin. The circuit board is provided with a positioning hole matched with the positioning pin.

[0026] The base has a rectangular structure, and the support plates extending into the cavity are arranged at the four corners of the base. When the circuit board is installed, the circuit board is supported by the support plates to form a first air duct, and the positioning and fixing of the circuit board are realized through the positioning pin.

[0027] Further, the top of the heat dissipation support is provided with a positioning groove, and the position opposite to the positioning groove of the upper cover is provided with a positioning member embedded in the positioning groove.

[0028] The heat dissipation support has a rectangular structure, and the positioning grooves are located at the four corners of the rectangle. The positioning member connected to the inner side wall of the upper cover cavity has a cross structure, and the heat dissipation support and the upper cover are preliminarily fixed through the positioning and supporting structure formed by the positioning groove and the positioning member.

[0029] Further, the positioning groove is provided with a first through hole, the circuit board is provided with a second through hole, and the support plate is provided with a third through hole. The positioning member includes a fixing column, and the fixing column penetrates the first through hole, the second through hole and the third through hole.

[0030] When the base, the circuit board, the heat dissipation support and the upper cover are assembled, the fixing column penetrates the first through hole, the second through hole and the third through hole, and the positioning member tightly presses and fits the heat dissipation support and the circuit board on the support plate to form a stable assembly structure, without the need for screw fixing, saving material cost.

[0031] Further, the periphery of the base is provided with a plurality of buckles, and the upper cover is provided with a buckle groove corresponding to the buckle.

[0032] The base and the upper cover are assembled and fixed through the clamping structure formed by the buckle and the buckle groove. The structure is stable and easy to assemble and disassemble, which can improve the assembly efficiency.

[0033] Further, the bottom of the heat dissipation fan module is provided with an air outlet.

[0034] An air outlet is provided at the bottom of the heat dissipation module. The heat dissipation fan exhausts the hot air after heat exchange drawn in from the first air inlet and the second air inlet from the air outlet, strengthening the air flow and improving the heat dissipation efficiency.

[0035] Compared with the prior art, the beneficial effects of the present application are as follows:

[0036] Two air ducts are designed inside the charger cavity. The first air duct is connected to the circuit board and the cavity where it is located, and the second air duct is connected to the charging device placed on the panel. When the charging device is charging, the heat dissipation fan module starts to provide an air source. The flowing air takes away the heat generated inside the wireless charger and the charging device through the first air duct and the second air duct. A support platform is provided on the panel to assist in supporting the charging device. At the same time, a second air inlet is opened on the side of the support platform. When the charging device is placed on the panel for charging, the second air inlet is located below the charging device, and the flowing air source draws away the heat generated by the charging device from the second air inlet. The second air inlet is provided on the side of the support platform, replacing the direct setting on the front of the panel, avoiding the phenomenon that the charging device covers the air inlet when placed on the panel, thereby increasing air circulation and improving the heat dissipation effect of the charging device. Description of the Drawings

[0037] FIG. 1 is an exploded view of the structure of a magnetic vehicle-mounted wireless charger according to an embodiment of the present application.

[0038] FIG. 2 is a schematic diagram of the combination of a heat dissipation bracket and a circuit board according to an embodiment of the present application.

[0039] FIG. 3 is an exploded view of the structure of a wireless magnetic charging module according to an embodiment of the present application.

[0040] FIG. 4 is an exploded view of the structure of an upper cover according to an embodiment of the present application.

[0041] FIG. 5 is a structural diagram of a base according to an embodiment of the present application.

[0042] FIG. 6 is a structural diagram from the bottom perspective according to an embodiment of the present application.

[0043] FIG. 7 is a top view of a magnetic vehicle-mounted wireless charger according to an embodiment of the present application.

[0044] FIG. 8 is a cross-sectional view taken at the position A-A in FIG. 7.

[0045] Illustration: 1-panel, 2-top cover, 3-radiator support, 4-circuit board, 5-base, 6-radiator fan module, 7-wireless magnetic charging module, 8-first air duct, 11-supporting table, 111-second air inlet, 12-hollow, 121-limiting groove, 21-second air duct, 22-baffle, 23- boss, 231-heat conduction sheet, 24-magnetic block groove, 25-magnetic block, 26-positioning piece, 261-fixing column, 27-clamping groove; 31-radiator fins, 32-magnetic groove, 33-positioning groove, 34-first through hole, 41-fin hole, 42-positioning hole, 43-second through hole; 51-vent hole, 52-first air inlet, 53-supporting plate, 54-positioning pin, 55-third through hole; 56-buckle; 61-air outlet, 71-coil, 72-magnetic sheet, 73-magnetic ring, 721-coil groove. DETAILED DESCRIPTION

[0046] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings. The preferred embodiments of the present application are shown in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein.

[0047] As shown in FIGS. 1-8, in a preferred embodiment, the present application provides a magnetic car-mounted wireless charger, which includes a panel 1, a top cover 2 located below the panel 1, a base 5 connected with the top cover 2 to form a cavity, the base 5 is provided with a vent hole 51, the bottom of the vent hole 51 is provided with a radiator fan module 6, the bottom of the radiator fan module 6 is provided with an air outlet 61; the cavity is provided with a circuit board 4, the circuit board 4 and the base 5 form a first air duct 8; the base 5 is provided with a first air inlet 52, the first air inlet 52 is in communication with the first air duct 8; the side wall of the top cover 2 is provided with a second air duct 21, the second air duct 21 is located above the radiator fan module 6; the panel 1 is provided with a supporting table 11, the side of the supporting table 11 is provided with a second air inlet 111, the second air inlet 111 is in communication with the second air duct 21.

[0048] The first air duct 8 is in communication with the circuit board 4 and the cavity in which the circuit board 4 is located, and the second air duct 21 is in communication with the charging device arranged on the panel 1. When the charging device is charging, the heat dissipation fan module 6 is started to provide air source, and the flowing air carries away the heat generated by the wireless magnetic attraction charging module 7, the circuit board 4 and the charging device through the first air duct 8 and the second air duct 21. The heat dissipation fan module 6 exhausts the hot air exchanged from the first air inlet 52 and the second air inlet 111 from the air outlet 61 to strengthen the air flow and improve the heat dissipation efficiency. The support table 11 is arranged on the panel 1 and is used for assisting in supporting the charging device. Meanwhile, the second air inlet 111 is arranged on the side of the support table 11. When the charging device is placed on the panel 1 for charging, the second air inlet 111 is located below the charging device, and the flowing air source carries away the heat generated by the charging device from the second air inlet 111. The second air inlet 111 is arranged on the side of the support table 11 instead of being arranged on the front surface of the panel 1, so that the charging device placed on the panel 1 does not cover the air inlet, thereby increasing the air circulation and improving the heat dissipation effect of the charging device.

[0049] As shown in FIG. 2, the heat dissipation support 3 is arranged in the cavity and is located above the circuit board 4. The heat dissipation support 3 is provided with a plurality of heat dissipation fins 31, and the circuit board 4 is provided with fin holes 41. The heat dissipation fins 31 penetrate the fin holes 41 and extend into the first air duct 8. The heat dissipation support 3 not only plays a supporting role but also is used for heat conduction. The heat dissipation fins 31 improve the heat conduction efficiency. The heat dissipation fins 31 exchange heat with the air in the first air duct 8, spread the heat in the air, and carry away the heat through the flowing air, so as to reduce the temperature inside the wireless charger during the charging process and improve the charging efficiency and stability.

[0050] As shown in FIG. 8, the second air duct 21 and the heat dissipation support 3 are provided with a partition plate 22. The partition plate 22 separates the second air duct 21 from the heat dissipation support 3 and the circuit board 4. The second air duct 21, the heat dissipation support 3 and the circuit board 4 are separated by the partition plate. The second air inlet 111 of the panel 1 is not in communication with the circuit board 4 inside the cavity. If water, debris or other sundries fall into the second air duct 21, the sundries will not fall on the circuit board 4, so that the short circuit of the circuit board 4 is avoided.

[0051] As shown in FIG. 3, the wireless magnetic attraction charging module 7 is mounted on the upper surface of the heat dissipation support 3, and the wireless magnetic attraction charging module 7 includes a coil 71, a magnetic sheet 72, and a magnetic ring 73. The magnetic sheet 72 is provided with a coil groove 721, and the coil 71 is mounted in the coil groove 721. The upper surface of the heat dissipation support 3 is provided with a magnetic groove 32, and the magnetic sheet 72 is mounted in the magnetic groove 32. The magnetic ring 73 is mounted in the magnetic ring groove formed between the edge of the magnetic groove 32 and the edge of the coil groove 721 of the magnetic sheet 72. The coil 71 is controlled by the circuit board 4 to perform magnetic-electric conversion and realize the function of wireless charging. The magnetic sheet 72 shields the magnetic field generated by the energized coil 71, reduces the magnetic field loss generated by the coil 71, and emits the magnetic field to the charging device as much as possible. The magnetic ring 73 provides a magnetic attraction function to magnetically attract and fix the charging device on the panel 1, avoiding movement that affects the charging efficiency. The wireless magnetic attraction charging module 7 is mounted and fixed in the magnetic groove 32 of the heat dissipation support 3. The heat generated by the wireless magnetic attraction charging module 7 during the charging process is conducted away by the heat dissipation support 3, thereby reducing the charging temperature and ensuring the stability of the charging efficiency.

[0052] As shown in FIGS. 1 and 4, the upper cover 2 is provided with a boss 23, and the boss 23 is provided with a heat conduction sheet 231 at the top. The magnetic groove 32 of the heat dissipation support 3 is located in the boss 23, and the top of the magnetic groove 32 abuts against the back of the heat conduction sheet 231. The wireless magnetic attraction charging module 7 is mounted in the magnetic groove 32 and placed inside the boss 23 of the upper cover 2 to form a sealed structure with the boss 23, thereby protecting the internal wireless magnetic attraction charging module 7 from damage. The heat conduction sheet 231 can be a ceramic heat conduction sheet. The front surface of the heat conduction sheet 231 is in contact with the charging device, and the heat generated by the charging device is conducted to the heat dissipation support 3 through the heat conduction sheet 231, thereby conducting and dissipating part of the heat and reducing the temperature of the charging device to ensure the stability of the charging efficiency.

[0053] As shown in FIGS. 1 and 8, the panel 1 is provided with a hollow 12, and the boss 23 of the upper cover 2 passes through the hollow 12 for installation. The back surface of the panel 1 is tightly attached to the upper cover 2. The second air inlet 111 on the side surface of the support table 11 of the panel 1 is opposite to the boss 23. After the charging device is placed on the boss 23, the second air inlet 111 is located below the charging device, and the flowing air source can draw away the heat generated by the charging device from the second air inlet 111. The support table 11 is arranged at a position adjacent to the hollow 12, and the upper surface of the support table 11 is flush with the top of the boss 23 to assist in supporting the charging device and ensuring the stability of the charging device.

[0054] As shown in FIG. 1 and FIG. 4, in order to enhance the magnetic attraction force and fix the mobile phone more stably on the panel 1, a magnetic block 25 cooperating with the magnetic ring 73 is arranged beside the boss 23, the magnetic block 25 is fixedly installed in the magnetic block groove 24 beside the boss 23 and is covered and hidden by the heat conduction sheet 231. The side wall of the hollow 12 is provided with a limiting groove 121, and the side wall opposite to the limiting groove 121 is clamped in the limiting groove 121. Through the limiting structure composed of the limiting groove 121 and the magnetic block groove 24, the accurate positioning and installation of the panel 1 can be realized. When the panel 1 is covered on the upper cover 2, the limiting groove 121 is clamped on the side wall of the magnetic block groove 24 to prevent the panel 1 from deviating, and the panel 1 and the upper cover 2 are provided with communicating screw holes, and the two are fixed and combined by screws.

[0055] As shown in FIG. 2 to FIG. 6, the base 5 is provided with a support plate 53 for supporting the circuit board 4, the support plate 53 is provided with a positioning pin 54, the circuit board 4 is provided with a positioning hole 42 matched with the positioning pin 54, and the number of the positioning pin 54 is at least two. The base 5 is in a rectangular structure, and the support plate 53 extending into the cavity is arranged at the four corner positions. When the circuit board 4 is installed, the circuit board 4 is supported by the support plate 53 to form the first air duct 8, and the positioning and fixing of the circuit board 4 are realized by the positioning pin 54. The top of the heat dissipation support 3 is provided with a positioning groove 33, and the upper cover 2 is provided with a positioning piece 26 embedded in the positioning groove 33 at the position opposite to the positioning groove 33. The heat dissipation support 3 is in a rectangular structure, and the positioning groove 33 is located at the four corner positions of the rectangle. The positioning piece 26 is connected to the inner side wall of the cavity of the upper cover 2 and is in a cross structure. The heat dissipation support 3 and the upper cover 2 are preliminarily fixed by the positioning and supporting structure composed of the positioning groove 33 and the positioning piece 26. The positioning groove 33 is provided with a first through hole 34, the circuit board 4 is provided with a second through hole 43, the support plate is provided with a third through hole 55, and the positioning piece 26 includes a fixed column 261. When the base 5, the circuit board 4, the heat dissipation support 3 and the upper cover 2 are combined, the fixed column 261 penetrates through the first through hole 34, the second through hole 43 and the third through hole 55, and the positioning piece 26 tightly presses and fits the heat dissipation support 3 and the circuit board 4 on the support plate 53 to form a stable assembly structure, without the need of using screws for fixing, thereby saving material cost. The periphery of the base 5 is provided with a plurality of buckles 56, and the upper cover 2 is provided with a clamping groove 27 corresponding to the buckles 56. The base 5 and the upper cover 2 are combined and fixed by the clamping structure composed of the buckles 56 and the clamping grooves 27, which is stable in structure and easy to assemble and disassemble, and can improve the assembly efficiency.

[0056] In the description of the present application, it should be understood that the terms such as "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like are intended to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description of the present application and simplification of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0057] In addition, the terms "first", "second", and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" and the like can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise expressly and specifically limited.

[0058] Although embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A magnetic car wireless charger, comprising a panel (1), an upper cover (2) located below the panel (1), and a base (5) connected to the upper cover (2) to form a cavity, characterized in that, The base (5) is provided with ventilation holes (51), and the ventilation holes (51) are used to install cooling fan modules (6); the cavity is provided with a circuit board (4), and a first air duct (8) is formed between the circuit board (4) and the base (5); the base (5) is provided with a first air inlet (52), and the first air inlet (52) is connected to the first air duct (8); the side wall of the upper cover (2) is provided with a second air duct (21), and the second air duct (21) is located above the cooling fan module (6); the panel (1) is provided with a support platform (11), and the side of the support platform (11) is provided with a second air inlet (111), and the second air inlet (111) is connected to the second air duct (21).

2. The magnetic car wireless charger according to claim 1, characterized in that, It also includes a heat dissipation bracket (3) disposed in the cavity. The heat dissipation bracket (3) is located above the circuit board (4). The bottom of the heat dissipation bracket (3) is provided with multiple heat dissipation fins (31). The circuit board is provided with fin holes (41). The heat dissipation fins (31) pass through the fin holes (41) and extend into the first air duct (8).

3. The magnetic car wireless charger according to claim 2, characterized in that, A partition (22) is provided between the second air duct (21) and the heat dissipation bracket (3), and the partition (22) separates the second air duct (21) from the heat dissipation bracket (3) and the circuit board (4).

4. The magnetic car wireless charger according to claim 2, characterized in that, It also includes a wireless magnetic charging module (7) located on the heat dissipation bracket (3). The wireless magnetic charging module (7) includes a coil (71), a magnetic sheet (72) and a magnetic ring (73). The magnetic sheet (72) is provided with a coil groove (721). The coil (71) is installed in the coil groove (721). The upper surface of the heat dissipation bracket (3) is provided with a raised magnetic groove (32). The magnetic sheet (72) is installed in the magnetic groove (32). A magnetic ring groove is formed between the edge of the magnetic groove (32) and the edge of the magnetic sheet (72). The magnetic ring (73) is installed in the magnetic ring groove.

5. The magnetic car wireless charger according to claim 4, characterized in that, The upper cover (2) is provided with a boss (23), and the magnetic groove (32) is located inside the boss (23).

6. The magnetic car wireless charger according to claim 5, characterized in that, The top of the boss (23) is provided with a heat-conducting plate (231), and the magnetic groove (32) abuts against the heat-conducting plate (231).

7. The magnetic car wireless charger according to claim 5, characterized in that, The panel (1) has a cutout (12), the boss (23) passes through the cutout (12), and the second air inlet (111) is opposite to the boss (23).

8. The magnetic car wireless charger according to claim 7, characterized in that, The support platform (11) is located adjacent to the hollow (12), and the upper surface of the support platform (11) is flush with the top of the protrusion (23).

9. The magnetic car wireless charger according to claim 7, characterized in that, A magnetic block groove (24) is provided on the side of the boss (23), and the heat-conducting sheet (231) covers the magnetic block groove (24). A magnetic block (25) is provided in the magnetic block groove (24).

10. The magnetic car wireless charger according to claim 9, characterized in that, The side wall of the hollow (12) is provided with a limiting groove (121), and the side wall of the magnetic block groove (24) opposite to the limiting groove (121) is engaged in the limiting groove (121).

11. The magnetic car wireless charger according to claim 2, characterized in that, The base (5) is provided with a support plate (53) for supporting the circuit board (4), and a positioning pin (54) is provided on the support plate (53). The circuit board (4) is provided with a positioning hole (42) that matches the positioning pin (54).

12. The magnetic car wireless charger according to claim 11, characterized in that, The top of the heat dissipation bracket (3) is provided with a positioning groove (33), and the upper cover (2) is provided with a positioning element (26) embedded in the positioning groove (33) at a position opposite to the positioning groove (33).

13. The magnetic car wireless charger according to claim 12, characterized in that, The positioning groove (33) is provided with a first through hole (34), the circuit board (4) is provided with a second through hole (43), the support plate (53) is provided with a third through hole (55), and the positioning member (26) includes a fixing post (261), which passes through the first through hole (34), the second through hole (43) and the third through hole (55).

14. The magnetic car wireless charger according to claim 1, characterized in that, The base (5) has several buckles (56) on its periphery, and the top cover (2) has a slot (27) corresponding to the buckles (56).

15. The magnetic car wireless charger according to claim 1, characterized in that, The cooling fan module (6) has an air outlet (61) at its bottom.

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