Wireless charger

Abstract

The utility model discloses a wireless charger which comprises a mainboard, a cooling system, a wireless charging module and an annular magnet which are arranged in a shell, the annular magnet is located on the periphery of the wireless charging module, a heat conduction metal module is arranged between the cooling system and the wireless charging module, one side face of the heat conduction metal module faces the cooling system, and the other side face of the heat conduction metal module faces the wireless charging module. The other side face of the heat conduction metal module faces the wireless charging module and the annular magnet. Compared with the prior art, the wireless charging module and the cooling system are additionally provided with the heat conduction metal module, the area of the heat conduction metal module is larger than that of the wireless charging module, heat dissipation is facilitated, heat can be guided out through the annular magnet, a new way is added for cooling a mobile phone through the wireless charger, the refrigeration efficiency of the wireless charger is improved, and the service life of the wireless charger is prolonged. And the charging efficiency and the charging time are greatly improved.

Description

Technical Field

[0001] The utility model relates to an electronic product, in particular to a charger. Background Art

[0002] The wireless charger includes a motherboard, cooling system, wireless charging module, and ring magnets housed within the housing. The cooling system, which dissipates heat generated during wireless charging, includes a fan, heat sink fins, and a TEC (Transistor-Electrochemical Cooling) fin. The TEC fin is closest to the wireless charging module, where it contacts the TEC. The fan transfers heat from the fins to the exterior of the housing. Utility Model Content

[0003] The technical problem solved by the utility model is to improve the cooling efficiency of a wireless charger.

[0004] In order to solve the above technical problems, the utility model provides the following technical solutions: a wireless charger, comprising a mainboard, a cooling system, a wireless charging module and an annular magnet arranged in a shell, the annular magnet being located on the periphery of the wireless charging module, a heat-conducting metal module being provided between the cooling system and the wireless charging module, one side of the heat-conducting metal module facing the cooling system, and the other side of the heat-conducting metal module facing the wireless charging module and the annular magnet.

[0005] Compared with the existing technology, a heat-conducting metal module is added between the wireless charging module and the cooling system. The area of ​​the heat-conducting metal module is larger than that of the wireless charging module, which is not only conducive to heat dissipation, but also the heat can be discharged outward through the annular magnet, adding a new way for the wireless charger to cool the mobile phone, which is beneficial to the improvement of the cooling efficiency of the wireless charger, and the charging efficiency and time are also greatly improved.

[0006] The cooling system includes a fan, heat sink fins and TEC cooling sheets. The heat-conducting metal module contacts the TEC cooling sheets, and the TEC cooling sheets contact the heat sink fins. The fan transfers the heat from the heat sink fins to the outside of the shell.

[0007] The heat-conducting metal module contacts the wireless charging module and the annular magnet. In existing wireless chargers, the wireless charging module directly contacts the TEC cooling plate. The present invention adds a heat-conducting metal module between the wireless charging module and the TEC cooling plate. The heat-conducting metal module has a larger area than both the wireless charging module and the TEC cooling plate, allowing the wireless charging module to still be cooled by the TEC cooling plate. Furthermore, the heat-conducting metal module can direct heat from the wireless charging module to the periphery for dissipation, thereby improving cooling efficiency.

[0008] The heat-conducting metal module consists of a laminated metal sheet and a magnetic conductor. The metal sheet contacts the TEC cooling sheet, while the magnetic conductor is ring-shaped and contacts the ring magnet. Heat generated by the wireless charging module is dissipated outward through the metal sheet, magnetic conductor, and ring magnet, improving cooling efficiency.

[0009] Thermally conductive silicone is installed on the side of the wireless charging module and ring magnet away from the heat-conducting metal module. Located at the bottom of the wireless charger, this thermally conductive silicone dissipates heat from the wireless charging module and ring magnet outward, improving cooling efficiency.

[0010] The side walls of the housing are provided with heat dissipation holes, which are arranged correspondingly to the heat dissipation fins. The fan is located in the middle of the heat dissipation fins. When the fan rotates, air flows through the heat dissipation fins and the heat dissipation holes, cooling the heat dissipation fins.

[0011] The top of the housing is equipped with an air inlet, which is equipped with an air inlet cover. The air inlet cover is located on the top of the wireless charger. Under the action of the fan, external cold air enters the air inlet through the gap between the air inlet cover and the top of the housing. After passing through the fan, the cold air is blown towards the heat sink fins and heat dissipation holes, cooling the heat sink fins.

[0012] The housing consists of an upper and lower shell, with the fan, heat sink, and mainboard located between them. The heat-conducting metal module, wireless charging module, and ring magnet are located beneath the lower shell. The TEC cooling fins extend through the hollowed-out lower shell and the mainboard. A light guide electrically connected to the mainboard extends upward through the housing and is exposed on the air inlet cover. The power socket, electrically connected to the mainboard, is located on the side of the housing. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention will be further described below with reference to the accompanying drawings:

[0014] Figure 1 is a schematic diagram of a wireless charger;

[0015] Figure 2 is a cross-sectional view of a wireless charger;

[0016] Figure 3 This is an exploded view of the wireless charger.

[0017] Explanation of symbols in the figure:

[0018] 10. Mainboard; 11. Light guide; 12. Power socket;

[0019] 20. Wireless charging module;

[0020] 30. Ring magnet;

[0021] 41. Fan; 42. Heat sink fins; 43. TEC cooling fins;

[0022] 51. Metal sheet; 52. Magnet conductor;

[0023] 60. Thermal conductive silicone;

[0024] 71. Upper shell; 72. Lower shell; 73. Heat dissipation holes; 74. Air inlet cover. DETAILED DESCRIPTION

[0025] refer to Figures 1 to 3 A wireless charger includes a mainboard 10, a cooling system, a wireless charging module 20 and an annular magnet 30 arranged in a shell. The annular magnet is located on the periphery of the wireless charging module. A heat-conducting metal module is provided between the cooling system and the wireless charging module. One side of the heat-conducting metal module faces the cooling system, and the other side of the heat-conducting metal module faces the wireless charging module and the annular magnet.

[0026] The area of ​​the heat-conducting metal module is larger than that of the wireless charging module. Therefore, the periphery of the heat-conducting metal module can conduct the heat generated by the wireless charging module outward, adding a new way to cool the wireless charger.

[0027] The cooling system includes a fan 41, heat dissipation fins 42 and TEC cooling fins 43. The heat-conducting metal module contacts the TEC cooling fins, and the TEC cooling fins contact the heat dissipation fins. The fan transfers the heat of the heat dissipation fins to the outside of the housing.

[0028] The heat-conducting metal module contacts the wireless charging module 20 and the annular magnet 30. The present invention adds a heat-conducting metal module between the wireless charging module 20 and the TEC cooling sheet 43. The heat-conducting metal module has a larger area than the wireless charging module and the TEC cooling sheet, allowing the wireless charging module 20 to still be cooled by the TEC cooling sheet 43. Furthermore, the heat-conducting metal module can direct the heat of the wireless charging module to the periphery for dissipation, thereby improving cooling efficiency.

[0029] The heat-conducting metal module consists of a metal sheet 51 and a magnetic conductor 52 bonded together. The metal sheet contacts the TEC cooling sheet 43. The magnetic conductor is ring-shaped and contacts the ring magnet 30. Heat generated by the wireless charging module is dissipated outward through the metal sheet, magnetic conductor, and ring magnet. Alternatively, the metal sheet 51 can be made of copper.

[0030] A heat-conducting silicone rubber 60 is provided on the side of the wireless charging module 20 and the annular magnet 30 away from the heat-conducting metal module. The heat-conducting silicone rubber is located at the bottom of the wireless charger and can dissipate the heat of the wireless charging module 20 and the annular magnet 30 to the outside.

[0031] The side wall of the housing is provided with heat dissipation holes 73, which are arranged corresponding to the heat dissipation fins 42. The fan 41 is located in the middle of the heat dissipation fins. When the fan 41 rotates, air flows through the heat dissipation fins 42 and the heat dissipation holes 73 to cool the heat dissipation fins.

[0032] The top of the housing is provided with an air inlet, which is provided with an air inlet cover 74. The air inlet cover is located at the top of the wireless charger. Under the action of the fan 41, external cold air enters the air inlet through the gap between the air inlet cover 74 and the top of the housing. After passing through the fan 41, the cold air is blown toward the heat sink fins 42 and heat dissipation holes 73, cooling the heat sink fins.

[0033] The housing consists of an upper shell 71 and a lower shell 72. The fan 41, heat sink fins 42, and mainboard 10 are located between the upper and lower shells. The heat-conducting metal module, wireless charging module 20, and annular magnet 30 are located below the lower shell. The TEC cooling plate 43 passes through the hollowed-out lower shell and mainboard. A light guide 11, electrically connected to the mainboard 10, extends upward through the housing and is exposed on the surface of the air inlet cover 74. A power socket 12, electrically connected to the mainboard 10, is located on the side of the housing.

[0034] The above content is only a preferred embodiment of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there may be changes in the specific implementation method and application scope. The content of this specification should not be understood as limiting the present invention.

Claims

1. A wireless charger, comprising a mainboard (10), a cooling system, a wireless charging module (20), and an annular magnet (30) disposed in a housing, wherein the annular magnet is located on the periphery of the wireless charging module, characterized in that: A heat-conducting metal module is provided between the cooling system and the wireless charging module. One side of the heat-conducting metal module faces the cooling system, and the other side of the heat-conducting metal module faces the wireless charging module and the annular magnet.

2. The wireless charger according to claim 1, wherein: The cooling system comprises a fan (41), heat dissipation fins (42) and a TEC cooling sheet (43); the heat-conducting metal module contacts the TEC cooling sheet, the TEC cooling sheet contacts the heat dissipation fins, and the fan transports the heat of the heat dissipation fins to the outside of the housing.

3. The wireless charger according to claim 1, wherein: The heat-conducting metal module contacts the wireless charging module (20) and the annular magnet (30).

4. The wireless charger according to claim 1, wherein: The heat-conducting metal module comprises a metal sheet (51) and a magnetic conductor (52) bonded together, the metal sheet contacts the TEC cooling sheet (43), and the magnetic conductor is in a ring shape and contacts the annular magnet (30).

5. The wireless charger according to claim 1, wherein: A heat-conducting silica gel (60) is provided on a side of the wireless charging module (20) and the annular magnet (30) away from the heat-conducting metal module.

6. The wireless charger according to claim 2, wherein: The side wall of the shell is provided with heat dissipation holes (73), the heat dissipation holes are arranged corresponding to the heat dissipation fins (42), and the fan (41) is located in the middle of the heat dissipation fins.

7. The wireless charger according to claim 6, wherein: An air inlet is provided on the top of the shell, and an air inlet cover plate (74) is provided on the air inlet.

8. The wireless charger according to claim 2, wherein: The housing comprises an upper housing (71) and a lower housing (72); a fan (41), a heat dissipation fin (42) and a mainboard (10) are located between the upper housing and the lower housing; a heat-conducting metal module, a wireless charging module (20) and a ring magnet (30) are located below the lower housing; and a TEC cooling plate (43) passes through the lower housing and the mainboard, which are hollowed out in the middle.

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