Air-cooled magnetic wireless charger

Abstract

The utility model discloses an air-cooled magnetic wireless charger in the technical field of magnetic wireless chargers, which comprises a shell, a magnetic wireless charger air cooling module, a battery pack and a PCB (printed circuit board) connected with the magnetic wireless charger air cooling module and the battery pack, and the shell is provided with an air inlet and an air outlet; the magnetic attraction wireless air charging and cooling module comprises a module support, a magnetic attraction charging assembly and a fan assembly, the magnetic attraction charging assembly and the fan assembly are both installed on the module support, the fan assembly is a turbine fan assembly, the air inlet position of the fan assembly faces the magnetic attraction charging assembly, and the air outlet position of the fan assembly faces the air outlet; and the battery pack and the magnetic wireless air charging and cooling module are flatly laid in the shell. According to the utility model, targeted heat dissipation can be carried out on the magnetic coil part, and the volume of the whole wireless charger is smaller, so that the design, development and application of the high-power wireless charger are facilitated; in addition, the space inside the shell can be effectively utilized, and the battery capacity of the wireless charger can be improved as much as possible.

Description

Technical Field

[0001] The utility model relates to the technical field of magnetic wireless chargers, and in particular to an air-cooled magnetic wireless charger. Background Art

[0002] As we all know, the efficiency of wireless charging is greatly affected by the heating of the coil. The heating of the coil will seriously affect the efficiency of wireless charging. The greater the charging power, the more severe the coil heating, which will further affect the charging efficiency of the coil. This makes it impossible for existing magnetic power banks to achieve high-power charging. In order to cool the magnetic coil as much as possible, additional heat dissipation devices are added to existing magnetic power banks. For example, a water cooling structure is installed in the magnetic power bank to cool the coil by heat transfer. However, the cooling speed of the water cooling method is too slow to meet people's needs. Another example is to install a fan for the coil and use the wind force of the fan to blow air to the coil to blow out the heat from the coil. However, the blowing method causes the heat of the coil to be more dispersed, and it is not possible to cool it efficiently.

[0003] For example, the patent with authorization announcement number CN217135198U discloses a new type of heat dissipation power bank, which can dissipate heat from the lithium battery and circuit board inside the bottom shell by setting the internal space of the bottom shell to be hollow, and combining the cooling fan with the heat dissipation holes to prevent the power bank from overheating when the mobile phone is charging and in use, thereby effectively improving the heat dissipation efficiency of the power bank.

[0004] In this structure, the cooling fan is located at the charging control component (i.e., the circuit board). It can only cool the heat generated by the circuit board, but cannot dissipate the heat from the coil, resulting in poor heat dissipation. If the cooling fan were installed at the coil, the thickness of the power bank would undoubtedly increase significantly, making the entire power bank too large. This structure is not suitable for coil cooling applications, and it is also difficult to achieve high-power wireless charging performance.

[0005] The above defects deserve improvement. Utility Model Content

[0006] In order to overcome the shortcomings of existing technologies, the utility model provides an air-cooled magnetic wireless charger, which can perform targeted heat dissipation on the magnetic coil part, and the volume of the entire wireless charger is more compact, which is conducive to the design, development and application of high-power wireless chargers; the utility model can also effectively utilize the space inside the shell to maximize the battery capacity of the wireless charger.

[0007] The technical solution of this utility model is as follows:

[0008] An air-cooled magnetic wireless charger, comprising:

[0009] A housing, wherein the housing is provided with an air inlet and an air outlet;

[0010] A magnetic wireless charging and cooling module, comprising a module bracket, a magnetic charging assembly, and a fan assembly. Both the magnetic charging assembly and the fan assembly are mounted on the module bracket. The fan assembly is a turbofan assembly, with its air intake facing the magnetic charging assembly and its air outlet facing the air outlet.

[0011] A battery pack, wherein the battery pack and the magnetic wireless charging and cooling module are laid flat inside the housing;

[0012] A PCB board is connected to the magnetic wireless charging and cooling module and the battery pack.

[0013] The utility model according to the above solution is characterized in that the PCB board is located beside the magnetic wireless charging and cooling module, so that the PCB board and the magnetic wireless charging and cooling module are arranged side by side.

[0014] Furthermore, the battery pack includes a first battery and a second battery, and the second battery is located next to the magnetic wireless charging and cooling module, so that the second battery and the PCB board are arranged side by side with the magnetic wireless charging and cooling module, and the first battery is located below the magnetic wireless charging and cooling module and the second battery.

[0015] The utility model according to the above solution is characterized in that the magnetic charging component includes a coil, a magnetic plate and a magnet, and the coil is located on the magnetic plate.

[0016] Furthermore, the magnetic plate is provided with a plurality of concave magnetic plate channels, and the magnetic plate channels are located on a side away from the coil.

[0017] Furthermore, the module bracket is provided with a mounting position for mounting the magnetic charging component, and the mounting position is provided with a hole for allowing heat from the magnetic charging component to pass through.

[0018] Furthermore, the mounting position includes a coil mounting groove for accommodating the coil and the magnetic plate, and a magnet mounting groove for accommodating the magnet.

[0019] Furthermore, the magnet mounting slot is provided with a first through-hole for allowing heat from the magnet to pass through, and the middle portion of the coil mounting slot is provided with a bracket middle hole for allowing heat from the coil to pass through, and the position of the bracket middle hole corresponds to the position of the coil;

[0020] Alternatively, the magnet mounting slot is provided with a first through-hole for allowing heat from the magnet to pass through, and the coil mounting slot is provided with a plurality of inwardly concave bracket channels, the positions of the bracket channels correspond to the positions of the coils, and the bracket channels are provided with a second through-hole for allowing heat from the coil to pass through.

[0021] The utility model according to the above solution is characterized in that the air inlet and the air outlet are both located on the side of the shell.

[0022] The utility model according to the above scheme is characterized in that the air inlet includes a first air inlet and a second air inlet, the first air inlet and the air outlet are both located on a side close to the magnetic wireless charging air cooling module, and the second air inlet is located on a side away from the magnetic wireless charging air cooling module.

[0023] The utility model according to the above solution has the beneficial effect that, in the utility model, the magnetic charging component and the fan component are both installed on the module bracket to form a complete magnetic wireless charging and cooling module, which is not only conducive to the processing of the entire module, but also can minimize the space occupied by the entire module; this structure can achieve heat dissipation and cooling of the magnetic charging component, and the use of the turbo fan further improves the heat dissipation speed, making the cooling effect of the charging coil more excellent;

[0024] The entire structure of the utility model is more compact, making the entire wireless charger more compact and applicable to large-capacity battery applications. The utility model can make full use of the internal space of the shell through the layout of the magnetic wireless charging air-cooling module, the PCB board, the first battery and the second battery, thereby achieving higher space utilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural diagram of the utility model;

[0026] Figure 2 A schematic diagram of another perspective of the present invention;

[0027] Figure 3 This is an exploded view of the structure of the present utility model;

[0028] Figure 4 This is a positional relationship diagram of the PCB board, battery pack, and magnetic wireless charging and cooling module in this utility model;

[0029] Figure 5 for Figure 4 Exploded view of

[0030] Figure 6 This is a structural exploded diagram of the magnetic wireless charging and cooling module in Example 1;

[0031] Figure 7Schematic diagram of the structure of the magnetic plate in Example 1;

[0032] Figure 8 This is a structural exploded diagram of the magnetic wireless charging and cooling module in Example 2;

[0033] Figure 9 This is a structural exploded diagram of the magnetic wireless charging and cooling module in Example 3.

[0034] In the drawings, the reference numerals are:

[0035] 10. Housing; 11. Upper housing; 12. Outer frame; 121. First air inlet; 122. Second air inlet; 123. Air outlet; 124. First filter; 125. Second filter; 126. Third filter; 13. Lower housing;

[0036] 20. Magnetic wireless charging and cooling module; 21. Module bracket; 211. Bracket center hole; 212. First perforation; 213. Bracket channel; 214. Second perforation; 22. Magnetic charging assembly; 221. Coil; 222. Magnetic plate; 2221. Magnetic plate center hole; 2222. Magnetic plate channel; 223. Magnet; 23. Fan assembly;

[0037] 30. PCB board;

[0038] 41. First battery; 42. Second battery. DETAILED DESCRIPTION

[0039] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0040] like Figures 1 to 9 As shown, the utility model addresses the defects of existing magnetic wireless power banks that are large in size and cannot effectively cool the charging coils, and proposes an air-cooled magnetic wireless charger, which can achieve targeted heat dissipation and cooling of the magnetic wireless charging components. At the same time, through the reasonable layout of the internal space of the power bank, the space can be fully utilized. While ensuring the charging power and storage capacity of the power bank, the volume of the entire power bank can be reduced, which is conducive to the application of high-power power banks.

[0041] like Figures 1 to 7 As shown, the air-cooled magnetic wireless charger in the present invention includes a shell 10, a magnetic wireless charging air-cooling module 20, a battery pack and a PCB board 30. The shell 10 provides the hardware support foundation of the entire air-cooled magnetic wireless charger. The magnetic wireless charging air-cooling module 20 is used to realize charging and discharging as well as heat dissipation and cooling of the charging and discharging functional components. The battery pack is used for storing electricity. The PCB board 30 is used to realize the charging and discharging management and cooling function control of the air-cooled magnetic wireless charger.

[0042] The housing 10 includes an upper housing 11, a lower housing 13, and an outer frame 12 positioned between the upper and lower housings 11, 13. The upper, lower, and outer frame 12 form a complete space within which the magnetic wireless charging and cooling module 20, the battery pack, and the PCB 30 are located. The housing 10 is provided with an air inlet and an air outlet 123, allowing heat from within the housing 10 to be blown out through the air outlet 123 under the action of the magnetic wireless charging and cooling module 20, while allowing cool air from the outside to enter the housing 10 through the air inlet, achieving air circulation.

[0043] Preferably, the air inlet and outlet 123 are both located on the side of the housing 10 to prevent them from obstructing the view of the charging and discharging functions. Specifically, the air inlet and outlet 123 are both located on the outer frame 12. The air inlet can directly correspond to the coil in the magnetic wireless charging and cooling module 20, more effectively drawing cool air to the coil. The air inlet can also correspond to the position of the PCB board 30, thereby cooling the PCB board 30 and the entire space inside the housing 10.

[0044] exist Figures 1 to 7 In the embodiment shown, the air inlet includes a first air inlet 121 and a second air inlet 122, wherein the first air inlet 121 and the air outlet 123 are both located on a side close to the magnetic wireless charging air cooling module 20, forming an air circulation loop of "external cold air-first air inlet 121-magnetic wireless charging air cooling module 20-hot air-air outlet 123-external environment"; the second air inlet 122 is located on a side away from the magnetic wireless charging air cooling module 20, and close to the PCB board 30, for forming an air circulation loop of "external cold air-second air inlet 122-PCB board 30-inner chamber of the shell 10-magnetic wireless charging air cooling module 20-hot air-air outlet 123-external environment".

[0045] Preferably, a filter is provided at both the air inlet and the air outlet 123, and the filter is fixed to the housing 10 to prevent external dust from entering the housing 10. Specifically, a first filter 124 is provided at the first air inlet 121, a second filter 125 is provided at the second air inlet 122, and a third filter 126 is provided at the air outlet 123. The first filter 124, the second filter 125, and the third filter 126 are all fixed to the housing 10.

[0046] The magnetic wireless charging and cooling module 20 includes a module bracket 21, a magnetic charging component 22 and a fan component 23. The magnetic charging component 22 and the fan component 23 are both installed on the module bracket 21. Specifically, the magnetic charging component 22 is installed on one side of the module bracket 21, and the fan component 23 is installed on the other side of the module bracket 21. The module bracket 21 is used to install the magnetic charging component 22 and the fan component 23 to form a complete module, and fix the module on the housing 10; the magnetic charging component 22 is used to realize the magnetic wireless charging function of external electronic devices (it can also accept magnetic wireless charging from a power supply); the fan component 23 is used to realize targeted heat dissipation and cooling of the magnetic charging component 22, and can also effectively dissipate heat for the entire chamber inside the housing 10. The fan component 23 is a turbofan component, whose air inlet position is toward the magnetic charging component 22, and its air outlet position is toward the air outlet 123.

[0047] The magnetic charging assembly 22 includes a coil 221, a magnetic plate 222, and a magnet 223. The coil 221 is located on the magnetic plate 222. The coil 221 of the present invention can be a charging coil for charging external electronic devices. The coil 221 of the present invention can also be a bidirectional coil, which can charge external electronic devices and accept wireless charging from an external power source. The middle of the magnetic plate 222 is provided with a magnetic plate hole 2221 that runs through it from top to bottom. The magnetic plate hole 2221 corresponds to the position of the notch in the middle of the coil 221.

[0048] like Figure 7 As shown, the magnetic plate 222 is provided with a plurality of concave magnetic plate channels 2222, which are located on the side away from the coil 221. The magnetic plate channels 2222 can increase the heat dissipation area of ​​the magnetic plate 222 and increase the heat dissipation effect. At the same time, the magnetic plate channels 2222 can provide a guide channel for the flow of hot air to increase the flow rate of the airflow.

[0049] The module bracket 21 is provided with a mounting position for the magnetic charging assembly 22, which is provided with a hole for heat to pass through the magnetic charging assembly 22. The mounting position includes a coil mounting slot for accommodating the coil 221 and magnetic plate 222, and a magnet mounting slot for accommodating the magnet 223. The coil mounting slot and the magnet mounting slot are recessed relative to the surface of the module bracket 21, forming an inner groove, thereby reducing the thickness of the magnetic charging assembly 22.

[0050] exist Figures 1 to 7 In the embodiment shown, a first through hole 212 is provided on the magnet mounting groove for allowing heat from the magnet 223 to pass through, and a bracket middle hole 211 is provided in the middle of the coil mounting groove for allowing heat from the coil 221 to pass through, and the position of the bracket middle hole 211 corresponds to the position of the coil 221.

[0051] exist Figure 9In the illustrated embodiment, a first through-hole 212 is provided on the magnet mounting groove for allowing heat from the magnet 223 to pass through, and a plurality of inwardly concave bracket channels 213 are provided on the coil mounting groove. The positions of the bracket channels 213 correspond to the positions of the coil 221, and a second through-hole 214 is provided on the bracket channels 213 for allowing heat from the coil 221 to pass through.

[0052] The PCB board 30 in this utility model is connected to the magnetic wireless charging and cooling module 20 and the battery pack to manage charging and discharging, and also to control the start-up of the turbofan. During turbofan control, external buttons connected to the PCB board 30 can be used to control the start-up and shutdown, as well as the wind speed. Automatic control can also be achieved using the control program of the main control circuit, and the control screen located on the housing 10 can be used to control various functions of the turbofan. This utility model does not limit the specific control process of the turbofan, so it will not be described in detail.

[0053] The battery pack and magnetic wireless charging and cooling module 20 are laid flat inside the housing 10, minimizing the thickness of the structural components within the housing 10. To achieve a rational layout of the space within the housing 10, the PCB board 30 of the present invention is located next to the magnetic wireless charging and cooling module 20, allowing the PCB board 30 and the magnetic wireless charging and cooling module 20 to be arranged side by side. Taking advantage of the small footprint of the magnetic wireless charging and cooling module 20 and the PCB board 30, they can be laid flat throughout the entire power bank.

[0054] In order to increase the battery capacity of the magnetic wireless charger, the battery pack in the present invention includes a first battery 41 and a second battery 42, wherein the second battery 42 is located next to the magnetic wireless charger air-cooling module 20, so that the second battery 42 and the PCB board 30 are arranged side by side with the magnetic wireless charger air-cooling module 20, and the first battery 41 is located below the magnetic wireless charger air-cooling module 20 and the second battery 42. Through this layout, the second battery 42 can be arranged parallel to the PCB board 30 and side by side with the magnetic wireless charger air-cooling module 20, so as to increase the battery setting position by utilizing the thickness of the magnetic wireless charger air-cooling module 20; in addition, the first battery 41 is laid flat on the lower side of the magnetic wireless charger air-cooling module 20 and the second battery 42, which can increase the laying area of ​​the first battery 41 and reduce the thickness of the first battery 41. By utilizing the above-mentioned layout of the first battery 41 and the second battery 42, not only can the space inside the housing 10 be fully utilized and the layout be reasonable, but the battery capacity can also be increased as much as possible without increasing the thickness of the product.

[0055] The shape of the magnet part in the present invention can be adjusted according to the specific occasion. Figures 1 to 7 In the embodiment shown, the magnet 223 is in the shape of a fan ring with a large opening, and the magnet mounting groove is in the shape of a fan ring. The cross section of the entire magnetic wireless charging and cooling module 20 is rectangular and smaller in size. Figure 8 In the embodiment shown, the magnet 223 is in the shape of a fan ring (approximately a circular ring) with a small opening. At this time, the magnet mounting groove is in the shape of a circular ring. The cross section of the entire magnetic wireless charging and cooling module 20 is square. Figures 1 to 7 The embodiment shown is slightly larger, but has better magnetic adsorption performance and can also realize small-angle rotation charging of electronic products such as mobile phones.

[0056] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all such improvements and changes should fall within the scope of protection of the claims attached to this utility model.

[0057] The above is an exemplary description of the present utility model patent in conjunction with the accompanying drawings. It is obvious that the implementation of the present utility model patent is not limited to the above-mentioned method. As long as various improvements are made using the method concept and technical solution of the present utility model patent, or the concept and technical solution of the present utility model patent are directly applied to other occasions without improvement, they are all within the scope of protection of the present utility model.

Claims

1. An air-cooled magnetic wireless charger, characterized in that: include: A housing, wherein the housing is provided with an air inlet and an air outlet; A magnetic wireless charging and cooling module, comprising a module bracket, a magnetic charging assembly, and a fan assembly. Both the magnetic charging assembly and the fan assembly are mounted on the module bracket. The fan assembly is a turbofan assembly, with its air intake facing the magnetic charging assembly and its air outlet facing the air outlet. A battery pack, wherein the battery pack and the magnetic wireless charging and cooling module are laid flat inside the housing; A PCB board is connected to the magnetic wireless charging and cooling module and the battery pack.

2. The air-cooled magnetic wireless charger according to claim 1, characterized in that: The PCB board is located beside the magnetic wireless charging and cooling module, so that the PCB board and the magnetic wireless charging and cooling module are arranged side by side.

3. The air-cooled magnetic wireless charger according to claim 2, characterized in that: The battery pack includes a first battery and a second battery. The second battery is located next to the magnetic wireless charging and cooling module, so that the second battery and the PCB board are arranged side by side with the magnetic wireless charging and cooling module. The first battery is located below the magnetic wireless charging and cooling module and the second battery.

4. The air-cooled magnetic wireless charger according to claim 1, characterized in that: The magnetic charging component includes a coil, a magnetic plate and a magnet, and the coil is located on the magnetic plate.

5. The air-cooled magnetic wireless charger according to claim 4, characterized in that: The magnetic plate is provided with a plurality of concave magnetic plate channels, and the magnetic plate channels are located on a side away from the coil.

6. The air-cooled magnetic wireless charger according to claim 4, characterized in that: The module bracket is provided with an installation position for installing the magnetic charging component, and the installation position is provided with a hole for allowing heat from the magnetic charging component to pass through.

7. The air-cooled magnetic wireless charger according to claim 6, characterized in that: The mounting position includes a coil mounting groove for accommodating the coil and the magnetic plate, and a magnet mounting groove for accommodating the magnet.

8. The air-cooled magnetic wireless charger according to claim 7, characterized in that: The magnet mounting slot is provided with a first through-hole for allowing heat from the magnet to pass through, and the middle portion of the coil mounting slot is provided with a bracket middle hole for allowing heat from the coil to pass through, and the position of the bracket middle hole corresponds to the position of the coil; Alternatively, the magnet mounting slot is provided with a first through-hole for allowing heat from the magnet to pass through, and the coil mounting slot is provided with a plurality of inwardly concave bracket channels, the positions of the bracket channels correspond to the positions of the coils, and the bracket channels are provided with a second through-hole for allowing heat from the coil to pass through.

9. The air-cooled magnetic wireless charger according to claim 1, characterized in that: The air inlet and the air outlet are both located on the side of the shell.

10. The air-cooled magnetic wireless charger according to claim 1 or 9, characterized in that: The air inlet includes a first air inlet and a second air inlet. The first air inlet and the air outlet are both located on a side close to the magnetic wireless charging and air cooling module, and the second air inlet is located on a side away from the magnetic wireless charging and air cooling module.

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