A wireless charger

Abstract

The utility model discloses a wireless charger, include: bottom shell, side edge set air outlet, surface shell, cover on bottom shell, be provided with convex part, charging part and air inlet, and the convex part surrounds charging part outside, and the convex part sets up air inlet groove, and the air inlet sets up in charging part and is connected with installation cavity, wireless charging coil, corresponding charging part below, middle is provided with ventilation groove, fan, set up below ventilation groove or fan blade stretches into ventilation groove, and air inlet end is connected with ventilation groove and air inlet, and air outlet end is connected with air outlet, electric control mainboard, set up in installation cavity, with wireless charging coil and centrifugal fan electricity is connected, the utility model discloses set up air inlet groove and air inlet on surface shell, and when charging on charging part, centrifugal fan inhales air from ventilation groove and air inlet and takes away heat, and makes air pass through ventilation groove and flows on charging coil and mainboard, takes away heat and discharges from air outlet, reduces the temperature of heating element, ensures charging efficiency and equipment safety.

Description

Technical Field

[0001] This utility model relates to the field of wireless charging technology, and in particular to a wireless charger. Background Technology

[0002] While current wireless charging technology offers a convenient way to transfer power, in practical applications, it relies on electromagnetic induction. Energy conversion occurs between the transmitter and receiver, inevitably generating heat. This heat primarily originates from the internal circuitry of the wireless charger, due to energy losses during conversion caused by coil resistance, core losses, and electromagnetic radiation, as well as the heat generated by internal components in the receiving phone. These factors create multiple concentrated heat sources. Existing wireless chargers often only address single heat sources, failing to effectively manage multiple heat sources. This overheating leads to decreased charging efficiency, negatively impacting user experience and even safety.

[0003] Therefore, how to provide a wireless charger that can effectively address the problem of multiple heat sources and improve charging efficiency and device safety is a problem that needs to be solved by those skilled in the art. Utility Model Content

[0004] This utility model provides a wireless charger designed to overcome the problems existing in the prior art.

[0005] This utility model provides a wireless charger, comprising:

[0006] The bottom shell is hollow and has an installation cavity, and an air outlet is provided on the side of the bottom shell;

[0007] A face shell covers the bottom shell. The face shell is provided with a protrusion, a charging part and an air inlet. The protrusion surrounds the outside of the charging part and is higher than the charging part. The protrusion is provided with an air inlet groove that communicates with the charging part. The air inlet is disposed through the charging part and communicates with the mounting cavity.

[0008] A wireless charging coil is disposed in the mounting cavity and below the charging unit, with a ventilation slot in the middle corresponding to the air inlet;

[0009] A fan is positioned below the ventilation slot or its blades extend into the ventilation slot. The air inlet of the fan is connected to the ventilation slot and the air inlet, and the air outlet of the fan is connected to the air outlet.

[0010] The electronic control motherboard is disposed in the mounting cavity and is electrically connected to the wireless charging coil and the fan.

[0011] In one embodiment, the air inlet extends vertically through the charging unit, and the air inlet slot extends horizontally through the protrusion.

[0012] In one embodiment, the wireless charger further includes a rechargeable battery cell electrically connected to the electronic control motherboard, and the rechargeable battery cell is disposed within the mounting cavity.

[0013] In one embodiment, the wireless charger further includes a magnetic attachment component disposed below the faceplate;

[0014] The inner side of the protrusion is hollow, and the magnetic component is embedded in the inner side of the protrusion.

[0015] In one embodiment, the wireless charger further includes a middle shell, on which a coil mounting part for mounting or fixing the wireless charging coil is provided. An air guide port adapted to the fan is provided in the middle of the coil mounting part, and the air guide port communicates with the ventilation slot.

[0016] In one embodiment, the middle shell is further provided with a magnetic mounting part and an annular protrusion, the magnetic mounting part and the coil mounting part being respectively disposed on the outer side and the inner side of the annular protrusion.

[0017] In one embodiment, a fan mounting post or mounting groove is provided on the inner side of the middle shell near the air guide, and the fan is fixedly mounted on the fan mounting post or mounting groove;

[0018] The bottom of the middle shell is provided with a support foot, which abuts against the electronic control motherboard.

[0019] In one embodiment, the wireless charger further includes a light-emitting component, which is electrically connected to the electronic control motherboard. The surface area corresponding to the ventilation slot is made of a semi-transparent or transparent material, and the light-emitting component is located below the semi-transparent or transparent material.

[0020] In one embodiment, the fan is a centrifugal fan, and the air inlet of the centrifugal fan is located below the ventilation slot or the fan blades extend into the ventilation slot;

[0021] The air outlet of the centrifugal fan is located below the wireless charging coil and faces the electronic control motherboard, and is connected to the air outlet on the side of the bottom shell.

[0022] In one embodiment, the wireless charger further includes a stand and / or a data cable. When the stand is opened, it can support the wireless charger to stand at a certain angle. The data cable is electrically connected to the electronic control motherboard.

[0023] In one embodiment, the wireless charger further includes a temperature control component electrically connected to the electronic control motherboard. The temperature control component includes a temperature sensor for detecting temperature changes in the wireless charger and controlling the speed of the fan.

[0024] In one implementation, the area corresponding to the air inlet is recessed towards the ventilation slot.

[0025] This invention integrates the wireless charging coil, fan, and electronic control board between the bottom shell and the front shell by setting an installation cavity in the bottom shell. An air inlet and an air vent are provided on the front shell. When the electronic device is wirelessly charging on the charging unit, the fan draws in air from the ventilation slots and air vents to remove the heat generated by the electronic device. The air then flows through the ventilation slots and over the wireless charging coil and electronic control board, carrying away the heat generated during operation, and finally exits through the air vents. This effectively reduces the temperature of the heat-generating components in the wireless charger, ensuring charging efficiency and device safety, preventing overheating of the electronic device, and improving the user experience. Attached Figure Description

[0026] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 A schematic diagram of the structure of a wireless charger provided in an embodiment of this utility model;

[0028] Figure 2 An exploded view of a wireless charger provided for an embodiment of this utility model;

[0029] Figure 3 A schematic diagram of the structure of the front shell in a wireless charger provided in an embodiment of this utility model;

[0030] Figure 4 This is a schematic diagram of the structure of the middle shell in a wireless charger according to an embodiment of the present invention;

[0031] Figure 5 This is another structural schematic diagram of the middle shell of a wireless charger provided in an embodiment of the present utility model;

[0032] Figure 6 A schematic diagram of the structure of a support foot in a wireless charger provided by an embodiment of this utility model;

[0033] Figure 7A schematic diagram illustrating the installation of the middle shell in a wireless charger according to an embodiment of this utility model;

[0034] Figure 8 A schematic diagram of the airflow direction of a centrifugal fan in a wireless charger provided for an embodiment of this utility model.

[0035] Markings in the image:

[0036] 10. Bottom shell; 11. Mounting cavity; 12. Air outlet; 20. Front shell; 21. Protrusion; 211. Air inlet slot; 22. Charging unit; 23. Air inlet; 24. Snap-fit ​​structure; 30. Wireless charging coil; 31. Ventilation slot; 40. Centrifugal fan; 41. Air inlet end; 42. Air outlet end; 50. Electronic control motherboard; 60. Magnetic assembly; 70. Middle shell; 71. Coil mounting part; 711. Air guide; 72. Magnetic mounting part; 73. Annular protrusion; 74. Fan mounting post; 75. Support foot; 80. Adhesive backing; 90. Data cable. Detailed Implementation

[0037] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0038] It should be understood that, when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0039] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0040] It should also be further understood that the term "and / or" as used in this specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0041] Please see below. Figures 1-3 The present invention provides a wireless charger, which specifically includes:

[0042] The bottom shell 10 has a hollow mounting cavity 11 and an air outlet 12 on its side.

[0043] The front shell 20 covers the bottom shell 10. The front shell 20 is provided with a protrusion 21, a charging part 22 and an air inlet 23. The protrusion 21 surrounds the outside of the charging part 22 and is higher than the charging part 22. The protrusion 21 is provided with an air inlet groove 211 that communicates with the charging part 22. The air inlet 23 is provided through the charging part 22 and communicates with the mounting cavity 11.

[0044] The wireless charging coil 30 is disposed inside the mounting cavity 11 and below the charging part 22, with a ventilation slot 31 in the middle corresponding to the air inlet 23;

[0045] The fan 40 is located below the ventilation slot 31 or the fan blades extend into the ventilation slot 31. The air inlet 41 of the fan 40 is connected to the ventilation slot 31 and the air inlet 23, and the air outlet 42 of the fan 40 is connected to the air outlet 12.

[0046] The electronic control motherboard 50 is located inside the mounting cavity 11 and is electrically connected to the wireless charging coil 30 and the fan 40.

[0047] In this embodiment, a mounting cavity 11 is provided in the bottom shell 10, within which the wireless charging coil 30, fan 40, and electronic control motherboard 50 are housed and integrated between the bottom shell 10 and the front shell 20. By providing an air inlet slot 211 and an air inlet 23 on the front shell 20, when the electronic device is wirelessly charged on the charging unit 22, relatively cool air is drawn in from the air inlet slot 211 under the action of the fan 40. After passing through the charging unit 22, the air enters the mounting cavity 11 through the air inlet 23, carrying away the heat generated during charging. The air passes through the ventilation slot 31, enters the mounting cavity 11 from the air inlet 41 of the fan 40, and carries away the heat from the wireless charging coil 30. It then flows from the air outlet 42 onto the electronic control motherboard 50, continuing to carry away the heat generated during operation, and finally exits from the air outlet 12 on the side of the bottom shell 10, forming an efficient heat dissipation cycle. This effectively reduces the temperature of the heat-generating components in the wireless charger, ensuring charging efficiency and device safety, and improving the user experience.

[0048] Meanwhile, this embodiment achieves full-coverage heat dissipation from the electronic device to the wireless charging coil 30 and the electronic control motherboard 50 through a complete air circulation path. This not only ensures that the temperature of each component is balanced and avoids local overheating, but also effectively improves the space utilization of the wireless charger, optimizes the structural design, reduces the volume, improves the portability of the wireless charger, and reduces the production cost.

[0049] In this embodiment, by setting a protrusion 21 around the outside of the charging part 22 and having a height higher than the charging part 22, a certain gap is still maintained between the bottom of the electronic device and the surface of the charging part 22 when the electronic device is wirelessly charged on the charging part 22. This allows air to flow into the gap (the surface of the charging part 22) through the air inlet 211 and into the mounting cavity 11 through the air inlet 23 for subsequent heat dissipation circulation.

[0050] In practical applications, the height of the protrusion 21 and the width of the air inlet slot 211 can be flexibly adjusted according to the size and heat dissipation requirements of different electronic devices to optimize the airflow path and further improve the heat dissipation effect. It is understandable that as long as the height difference between the protrusion 21 and the charging part 22 is kept within a certain range, smooth airflow can be ensured, while avoiding the impact on charging efficiency due to excessive gap.

[0051] Furthermore, in specific embodiments, the position of the electronic control motherboard 50 can be selected to be below the fan 40 or flush with the fan 40, depending on actual needs. As the cooler air is drawn into the cavity by the fan 40, it first cools the outer shell 20 and the electronic devices charging on it. Then, it is drawn into the cavity to cool the wireless charging coil 30, and finally, the fan 40 blows the air towards the electronic control motherboard 50 to cool it as well.

[0052] In one embodiment, the air inlet 23 penetrates the charging part 22 in a vertical direction, and the air inlet slot 211 penetrates the protrusion 21 in a horizontal direction.

[0053] In this embodiment, the design of the air inlet slot 211 extending horizontally through the protrusion 21 allows the charging unit 22 to remain connected to the outside air while the electronic device is placed on the charging unit 22 for charging. This enables the outside air to be introduced into the mounting cavity 11 sequentially through the air inlet slot 211, the charging unit 22, and the air inlet 23 under the action of the fan 40, forming a complete and efficient airflow path and ensuring that each heat-generating component is effectively cooled.

[0054] In a specific embodiment, multiple air inlet slots 211 can be provided and evenly distributed on the protrusion 21, so that air flows through more areas of the charging section 22 to enhance the uniformity and efficiency of air circulation. Similarly, the size and position of the air inlets 23 can also be adjusted according to actual needs. For example, the center of the charging section 22 can be set as solid, with multiple air inlets 23 surrounding it, ensuring that air passes evenly through the charging section 22 from all sides and flows into the ventilation slots 31, further improving the heat dissipation effect.

[0055] In addition, multiple air outlets 12 can be provided on the bottom shell 10 and arranged in a circumferential array along the side of the bottom shell 10 to evenly distribute the airflow, improve heat dissipation efficiency, and ensure that the temperature of each component is balanced.

[0056] In one embodiment, the wireless charger further includes a rechargeable battery cell electrically connected to the electronic control motherboard 50, and the rechargeable battery cell is disposed within the mounting cavity 11.

[0057] This embodiment transforms a wireless power bank with a cooling function by placing a rechargeable battery cell inside the mounting cavity 11 and electrically connecting it to the electronic control motherboard 50 to supply power through the rechargeable battery cell, thereby improving wireless charging efficiency.

[0058] In one embodiment, the wireless charger further includes a magnetic component 60 disposed below the faceplate 20;

[0059] The inner side of the protrusion 21 is hollow, and the magnetic component 60 is embedded in the inner side of the protrusion 21.

[0060] In this embodiment, the magnetic component 60 located beneath the casing 20 enables a tight magnetic attraction between the wireless charger and the magnetically-enabled electronic device, facilitating user alignment for wireless charging and ensuring device stability during charging. Furthermore, by creating a hollow structure within the protrusion 21, the magnetic component 60 can be embedded, shortening the distance between the magnetic component and the magnetically-enabled electronic device. This not only enhances the magnetic attraction between the wireless charger and the electronic device but also optimizes the internal space layout, further improving heat dissipation efficiency and overall structural compactness. In specific applications, the shape and size of the magnetic component 60 can be customized based on the inner space of the protrusion 21 to achieve a precise fit.

[0061] Combination Figures 4-7 As shown, in one embodiment, the wireless charger further includes a middle shell 70, on which a coil mounting part 71 for mounting the wireless charging coil 30 is provided. An air vent 711 adapted to the fan 40 is provided in the middle of the coil mounting part 71, and the air vent 711 communicates with the ventilation slot 31.

[0062] In this embodiment, the wireless charging coil 30 is mounted on the middle shell 70 by setting the coil mounting part 71, and an air guide 711 communicating with the ventilation groove 31 is provided in the middle of the coil mounting part 71, so that the fan 40 can directly introduce air from the air guide 711 and the ventilation groove 31, thereby forming a directional airflow for heat dissipation of the wireless charging coil 30 and other components.

[0063] In a specific embodiment, the wireless charging coil 30 can be fixedly installed in the coil mounting part 71 by the adhesive backing 80, and the shape of the adhesive backing 80 is adapted to the coil mounting part 71 and the wireless charging coil 30.

[0064] In one embodiment, the middle shell 70 is further provided with a magnetic mounting part 72 and an annular protrusion 73, with the magnetic mounting part 72 and the coil mounting part 71 respectively disposed on the outer side and the inner side of the annular protrusion 73.

[0065] In this embodiment, by providing an annular protrusion 73 on the middle shell 70, and by placing the magnetic mounting part 72 and the coil mounting part 71 on the outer and inner sides of the annular protrusion 73 respectively, the magnetic assembly 60 and the wireless charging coil 30 can be installed respectively. This not only optimizes the spatial layout and improves the space utilization rate, but also uses the annular protrusion 73 to limit the magnetic assembly 60 and the wireless charging coil 30, preventing them from shifting during use and ensuring charging stability and safety.

[0066] It is understandable that the magnetic component 60 is embedded inside the protrusion 21 of the face shell 20. Therefore, the magnetic component 60 is also annular and can be limited by the annular protrusion 73 to form a stable structure.

[0067] In one embodiment, a fan mounting post 74 or mounting groove is provided on the inner side of the middle shell 70 near the air guide 711, and the fan 40 is fixedly mounted on the fan mounting post 74 or mounting groove.

[0068] The bottom of the middle shell 70 is provided with a support foot 75, which abuts against the electronic control motherboard 50.

[0069] In this embodiment, the fan 40 is fixedly installed inside the middle shell 70 by the fan mounting post 74 or the mounting slot, and the fan 40 is supported by the support foot 75 protruding from the bottom of the middle shell 70 against the electronic control motherboard 50. This forms an effective heat dissipation channel between the electronic control motherboard 50 and the middle shell 70, allowing the fan 40 to guide airflow from the air guide 711 directly to the electronic control motherboard 50, thereby efficiently dissipating heat from the electronic control motherboard 50 and ensuring its stable performance during long-term operation.

[0070] In one embodiment, the wireless charger further includes a light-emitting component, which is electrically connected to the electronic control motherboard 50. The area of ​​the faceplate 20 corresponding to the ventilation slot 31 is made of a semi-transparent or transparent material, and the light-emitting component is disposed below the semi-transparent or transparent material.

[0071] In this embodiment, by using a semi-transparent or transparent material for the area of ​​the shell 20 corresponding to the ventilation slot, and placing a light-emitting component below the semi-transparent or transparent material, a visual indication function can be achieved, improving the user experience while ensuring that the heat dissipation effect is not affected, further optimizing the aesthetics and practicality of the overall design.

[0072] In a specific embodiment, the light-emitting component can be disposed above or below the fan blades of the fan 40. When disposed below the fan blades of the fan 40, the light emitted by the light-emitting component can also be transmitted through the fan blades to the surface of the housing 20. Furthermore, the semi-transparent or transparent material in this embodiment can be selected from glass, acrylic, PC, PVC, TPE, TPR, PET, or other semi-transparent and transparent materials according to actual needs.

[0073] Combination Figure 8 As shown, in one embodiment, the fan 40 is a centrifugal fan, and the air inlet 41 of the centrifugal fan is located below the ventilation slot 31 or the fan blades extend into the ventilation slot 31.

[0074] The air outlet 42 of the centrifugal fan is located below the wireless charging coil 31 and faces the electronic control motherboard 50, and is connected to the air outlet 12 on the side of the bottom shell 10.

[0075] In this embodiment, by placing the air inlet 41 of the centrifugal fan below or partially within the ventilation slot 31, air from the ventilation slot 31 is drawn in and discharged radially through the air outlet 42 by centrifugal force (finally discharged from the air outlet 12 on the side of the bottom shell 10), forming a directional airflow. The air outlet 42 of the fan 40 is positioned below the wireless charging coil 31 and faces the electronic control motherboard 50, and is connected to the air outlet 12 on the side of the bottom shell 10, ensuring that the airflow directly acts on the electronic control motherboard 50 and preventing airflow from flowing back from the ventilation slot 31, thereby optimizing the heat dissipation path and improving heat dissipation efficiency. At the same time, placing the fan blades within the ventilation slot 31 effectively reduces the thickness of the device, increasing its portability.

[0076] In one embodiment, the wireless charger further includes a stand and / or a data cable 90. When the stand is opened, it can support the wireless charger to stand at a certain angle. The data cable 90 is electrically connected to the electronic control motherboard 50.

[0077] In this embodiment, the wireless charger is supported by a stand at a certain angle, making it convenient for users to use in various scenarios. Additionally, this embodiment includes a data cable 90 for connecting to an external power source for charging or discharging the electronic device.

[0078] In a specific embodiment, a charging hole is also provided on the side of the bottom shell 10, so that the power input or output can be realized by inserting a data cable into the charging hole to connect to the electronic control motherboard 50.

[0079] In one specific embodiment, the lower end of the front shell 20 is provided with a snap-fit ​​structure 24, and the bottom shell 10 is provided with a snap-fit ​​hole that cooperates with the snap-fit ​​structure 24.

[0080] In this embodiment, by providing corresponding snap-fit ​​structures 24 and snap-fit ​​holes on the front shell 20 and the bottom shell 10, the front shell 20 and the bottom shell 10 can be firmly snapped together to accommodate and fix each component in the shell, thereby ensuring the stability and sealing of the overall structure.

[0081] In specific application scenarios, after the front shell 20 is snapped onto the bottom shell 10, it can press each component tightly into the mounting cavity 11, preventing the performance of each component from being degraded due to vibration or displacement during use, thereby ensuring the stability and reliability of the wireless charger during operation.

[0082] In one embodiment, the wireless charger further includes a temperature control component electrically connected to the electronic control motherboard 50. The temperature control component includes a temperature sensor for detecting temperature changes in the wireless charger and controlling the speed of the fan 40.

[0083] In this embodiment, by setting the temperature control component to be electrically connected to the electronic control motherboard 50, the temperature sensor is used to detect the temperature change of the wireless charger, and the temperature control component and the electronic control motherboard 50 are used to send control signals to the fan 40 to control the speed of the fan 40, so that the speed of the fan 40 can be adjusted according to different scenarios.

[0084] For example, when the temperature of the wireless charger is detected to exceed a preset threshold, the speed of fan 40 can be increased to accelerate heat dissipation and improve the cooling speed of the device; when the temperature of the wireless charger is within the preset threshold, the speed of fan 40 can be appropriately reduced to reduce the noise of fan 40 while ensuring heat dissipation capacity, thereby improving the user experience.

[0085] In one embodiment, the area corresponding to the air inlet 23 is recessed towards the ventilation slot 31.

[0086] In this embodiment, the area corresponding to the air inlet 23 is set to be recessed towards the ventilation slot 31 and rounded. When the fan 40 draws the cooler external air towards the air inlet 23, this setting can optimize the airflow path and make it smoother, so that the external air can be more easily drawn into the wireless charger for heat dissipation.

[0087] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the systems disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the descriptions are relatively simple; relevant parts can be referred to in the method section. It should be noted that those skilled in the art can make various improvements and modifications to this application without departing from the principles of this application, and these improvements and modifications also fall within the protection scope of the claims of this application.

[0088] It should also be noted that, in this specification, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A wireless charger, characterized in that, include: The bottom shell (10) is hollow and has an installation cavity (11). An air outlet (12) is provided on the side of the bottom shell (10). A face shell (20) covers the bottom shell (10). The face shell (20) is provided with a protrusion (21), a charging part (22) and an air inlet (23). The protrusion (21) surrounds the outside of the charging part (22) and is higher than the charging part (22). The protrusion (21) is provided with an air inlet groove (211) that communicates with the charging part (22). The air inlet (23) is provided through the charging part (22) and communicates with the mounting cavity (11). A wireless charging coil (30) is disposed inside the mounting cavity (11) and below the charging part (22), with a ventilation slot (31) in the middle corresponding to the air inlet (23). A fan (40) is located below the ventilation slot (31) or its blades extend into the ventilation slot (31). The air inlet (41) of the fan (40) is connected to the ventilation slot (31) and the air inlet (23), and the air outlet (42) of the fan (40) is connected to the air outlet (12). The electronic control motherboard (50) is located inside the mounting cavity (11) and is electrically connected to the wireless charging coil (30) and the fan (40).

2. The wireless charger according to claim 1, characterized in that, The air inlet (23) penetrates the charging part (22) in a vertical direction, and the air inlet groove (211) penetrates the protrusion (21) in a horizontal direction.

3. The wireless charger according to claim 1, characterized in that, It also includes a rechargeable battery cell, which is electrically connected to the electronic control motherboard (50) and is located inside the mounting cavity (11).

4. The wireless charger according to claim 1, characterized in that, It also includes a magnetic suction component (60), which is disposed below the faceplate (20); The inner side of the protrusion (21) is hollow, and the magnetic suction component (60) is embedded in the inner side of the protrusion (21).

5. The wireless charger according to claim 4, characterized in that, It also includes a middle shell (70), on which a coil mounting part (71) for installing or fixing the wireless charging coil (30) is provided. The coil mounting part (71) has an air guide (711) adapted to the fan (40) in the middle, and the air guide (711) communicates with the ventilation slot (31).

6. The wireless charger according to claim 5, characterized in that, The middle shell (70) is also provided with a magnetic mounting part (72) and an annular protrusion (73), and the magnetic mounting part (72) and the coil mounting part (71) are respectively located on the outer side and the inner side of the annular protrusion (73).

7. The wireless charger according to claim 5, characterized in that, The inner side of the middle shell (70) is provided with a fan mounting post (74) or mounting groove near the air guide (711), and the fan (40) is fixedly installed on the fan mounting post (74) or mounting groove. The bottom of the middle shell (70) is provided with a support foot (75), which abuts against the electronic control motherboard.

8. The wireless charger according to claim 1, characterized in that, It also includes a light-emitting component, which is electrically connected to the electronic control motherboard (50). The area of ​​the face shell (20) corresponding to the ventilation slot (31) is made of semi-transparent or transparent material, and the light-emitting component is located below the semi-transparent or transparent material.

9. The wireless charger according to claim 1, characterized in that, The fan (40) is a centrifugal fan, and the air inlet (41) of the centrifugal fan is located below the ventilation slot (31) or the fan blades extend into the ventilation slot (31); The air outlet (42) of the centrifugal fan is located below the wireless charging coil (30) and faces the electronic control motherboard (50), and is connected to the air outlet (12) on the side of the bottom shell (10).

10. The wireless charger according to claim 1, characterized in that, It also includes a stand and / or a data cable (90), which, when opened, can support the wireless charger to stand at a certain angle, and the data cable (90) is electrically connected to the electronic control motherboard (50).

11. The wireless charger according to claim 1, characterized in that, It also includes a temperature control component, which is electrically connected to the main control board (50). The temperature control component includes a temperature sensor for detecting temperature changes in the wireless charger and controlling the speed of the fan (40).

12. The wireless charger according to claim 1, characterized in that, The area corresponding to the air inlet (23) is recessed towards the ventilation slot (31).

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