A wireless charger

Abstract

The utility model discloses a wireless charger, include: bottom shell is provided with the installation cavity, and the side and / or bottom are provided with the air inlet, surface shell is provided with the convex part, charges the part and the air outlet, and the air outlet intercommunication installation cavity, wireless charging coil is located the lower part of charging part, and the middle sets up the coil through -hole, and the coil through -hole is corresponded with the air outlet and sets up and intercommunication, fan sets up in the coil through -hole, mainboard sets up in the installation cavity bottom, partition sets up on the mainboard with mainboard and fan, coil through -hole and air outlet are separated, and partition is provided with the air -guiding channel on, and the air -guiding channel is connected with air inlet, coil through -hole and air outlet. The utility model discloses through setting up partition separates mainboard and airflow channel, makes air from air inlet after entering, can directly flow to the air outlet, and carries out the heat dissipation to the electronic equipment on charging part, avoids the airflow to flow through mainboard and carries the heat of mainboard and flows to the air outlet, can more efficiently take away the heat of electronic equipment, and effectively improves the heat dissipation efficiency.

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] During wireless charging of external charging devices such as mobile phones, the wireless charging coil and the phone itself generate a significant amount of heat. Simultaneously, the electronic components inside the charger, such as the motherboard, also heat up. If this heat accumulates and cannot dissipate in time, it can cause the phone and charger to overheat, not only triggering a slowdown in charging speed and affecting charging efficiency, but also potentially accelerating battery aging and even posing safety hazards.

[0003] Current wireless chargers typically use fans for active cooling. A common approach is to incorporate airflow channels inside the charger, using a fan to drive airflow over heat-generating areas such as the motherboard before blowing it out through vents towards the back of the phone. However, this design often has a significant drawback: the airflow carrying away heat generated by the electronic components on the motherboard can actually dissipate heat. This means that the airflow blowing onto the phone is actually "hot air" carrying heat from the motherboard, reducing the phone's cooling efficiency and potentially exacerbating temperature increases in extreme cases.

[0004] Therefore, there is an urgent need for a wireless charger design that can effectively isolate the motherboard heat, efficiently dissipate heat directly at the back coil location of external charging devices such as mobile phones, and has a compact and reasonable structure. Utility Model Content

[0005] This utility model provides a wireless charger designed to overcome the problems existing in the prior art.

[0006] This utility model provides a wireless charger, comprising:

[0007] The bottom shell is hollow and has an installation cavity. The bottom shell has air inlets on its side and / or bottom.

[0008] A face shell covers the bottom shell. The face shell is provided with a protrusion, a charging part and an air outlet. The protrusion is located outside the charging part and is higher than the charging part.

[0009] A wireless charging coil is disposed in the mounting cavity and located below the charging part, with a coil through hole in the middle. The coil through hole is correspondingly disposed to the air outlet and communicates with the air outlet.

[0010] A fan, wherein the fan is disposed inside or below the coil through-hole;

[0011] A motherboard is disposed within the mounting cavity, and the motherboard is electrically connected to the fan and the wireless charging coil.

[0012] A separator is disposed above the motherboard and separates the motherboard from the fan, coil through hole and air outlet. The separator is provided with an air guide channel, which is connected to the air inlet, coil through hole and air outlet to form an airflow channel. The fan is disposed in the airflow channel.

[0013] In one embodiment, the protrusion is provided with an air outlet groove that communicates with the charging unit, and the air outlet is provided through the charging unit and communicates with the mounting cavity;

[0014] In one embodiment, the wireless charger further includes a magnet assembly disposed outside the wireless charging coil and located below the faceplate.

[0015] In one embodiment, the inner side of the protrusion is provided with a groove adapted to the shape of the magnet assembly, and the magnet assembly is embedded in the groove and fixed.

[0016] In one embodiment, the wireless charger further includes a middle shell, which is disposed in the mounting cavity and divides the mounting cavity into an upper mounting cavity and a lower mounting cavity. The middle shell is provided with a vent hole that connects the upper mounting cavity and the lower mounting cavity. The vent hole is correspondingly disposed with the coil through hole and communicates with the coil through hole.

[0017] The wireless charging coil is disposed in the upper mounting cavity, the motherboard and the separator are disposed in the lower mounting cavity, and the fan is disposed in the lower mounting cavity and located below the coil through hole or extending into the coil through hole.

[0018] In one embodiment, a coil limiting part is provided protruding upward at the vent hole, the outer edge of the coil limiting part is adapted to the inner wall of the coil through hole, and the coil through hole is sleeved on the outside of the coil limiting part.

[0019] In one embodiment, a partition baffle extends from the partition member. The shape of the outer edge of the partition baffle is adapted to the shape of the inner wall of the bottom shell, and the outer edge of the partition baffle abuts against the inner wall of the bottom shell. The shape of the top edge of the partition baffle is adapted to the shape of the bottom surface of the middle shell, and the top edge of the partition baffle abuts against the bottom surface of the middle shell.

[0020] The air guide channel is formed on the inner side of the partition baffle, and the air guide channel connects the air inlet and the vent.

[0021] In one embodiment, the air guide channel includes a first ventilation slot and a second ventilation slot formed by the partition baffle. The first ventilation slot is disposed corresponding to the air inlet, the second ventilation slot is connected to the first ventilation slot and is disposed corresponding to the vent hole, and the fan is disposed above the second ventilation slot or partially extends into the second ventilation slot.

[0022] In one embodiment, the bottom of the separator is provided with a mounting groove, and the motherboard is installed in the mounting groove.

[0023] In one embodiment, the blade tip diameter of the fan is smaller than the diameter of the coil through hole.

[0024] In one embodiment, the fan is a centrifugal fan or an axial fan, and the air outlet of the fan is directed towards the air outlet.

[0025] In one embodiment, the bottom surface of the bottom shell is provided with a raised structure, which is used to form an air intake space between the bottom surface of the bottom shell and the horizontal placement surface.

[0026] This utility model embodiment isolates the motherboard area and the airflow channel by setting a separator, so that the external air drawn in by the fan can flow directly to the air outlet through the airflow channel and dissipate heat from the electronic devices on the charging unit. This prevents the airflow from flowing through the motherboard and carrying the heat generated by the motherboard to the air outlet, effectively isolating the motherboard heat and more efficiently removing the heat from the electronic devices, thus improving the heat dissipation efficiency. Attached Figure Description

[0027] 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.

[0028] Figure 1 A schematic diagram of the structure of a wireless charger provided in an embodiment of this utility model;

[0029] Figure 2 An exploded view of a wireless charger provided for an embodiment of this utility model;

[0030] Figure 3 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 4 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 5 This is a schematic diagram of the structure of the bottom shell of a wireless charger provided in an embodiment of the present invention;

[0033] Figure 6 This is a schematic diagram of the structure of a separator in a wireless charger provided in an embodiment of the present utility model.

[0034] Markings in the image:

[0035] 10. Bottom shell; 11. Mounting cavity; 12. Air inlet; 20. Front shell; 21. Protrusion; 22. Charging part; 23. Air outlet; 24. Air outlet slot; 30. Wireless charging coil; 31. Coil through hole; 40. Fan; 50. Main board; 60. Divider; 61. Divider baffle; 62. Air guide channel; 621. First ventilation slot; 622. Second ventilation slot; 63. Mounting slot; 70. Magnet assembly; 80. Middle shell; 81. Vent hole; 82. Coil limiting part. Detailed Implementation

[0036] 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.

[0037] 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.

[0038] 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.

[0039] 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.

[0040] Please see below. Figures 1-6 The present invention provides a wireless charger, which specifically includes:

[0041] The bottom shell 10 has a hollow mounting cavity 11, and the bottom shell 10 has an air inlet 12 on its side and / or bottom.

[0042] A faceplate 20 covers the bottom shell 10. The faceplate 20 is provided with a protrusion 21, a charging part 22 and an air outlet 23. The protrusion 21 is located outside the charging part 22 and is higher than the charging part 22.

[0043] The wireless charging coil 30 is disposed inside the mounting cavity 11 and located below the charging part 22. A coil through hole 31 is provided in the middle. The coil through hole 31 is correspondingly disposed with the air outlet 23 and is connected to the air outlet 23.

[0044] Fan 40 is disposed inside or below the coil through hole 31.

[0045] The motherboard 50 is located inside the mounting cavity 11 and is electrically connected to the fan 40 and the wireless charging coil 30.

[0046] The separator 60 is located above the motherboard 50 and separates the motherboard 50 from the fan 40, the coil through hole 31 and the air outlet 23. The separator 60 is provided with an air guide channel 62, which is connected to the air inlet 12, the coil through hole 31 and the air outlet 23 to form an airflow channel. The fan 40 is located in the airflow channel.

[0047] In this embodiment, the motherboard 50 area and the airflow channel are isolated by the separator 60. This allows the low-temperature air drawn in from the outside to be drawn in through the air inlet 12 by the fan 40 and then flow directly to the air outlet 23 through the airflow channel. This airflow also dissipates heat from the electronic devices on the charging unit 22, preventing the airflow from flowing through the motherboard and carrying the heat generated by the motherboard to the air outlet. This effectively isolates the heat from the motherboard 50 and allows the drawn-in low-temperature airflow to blow directly onto the electronic devices, thus more efficiently removing the heat from the electronic devices and improving the heat dissipation efficiency to maintain a faster wireless charging speed.

[0048] This embodiment uses the air inlet 12, air guide channel 62, coil through hole 31, and air outlet 23 to form a direct airflow channel, allowing airflow to be directly and efficiently delivered to the electronic device, thus improving heat dissipation efficiency. Furthermore, by placing the fan 40 within this airflow channel and arranging the components in layers, the overall structure becomes more compact and space-efficient. This not only effectively improves the heat dissipation efficiency of the wireless charger but also saves internal space, facilitating miniaturization design.

[0049] In one embodiment, the protrusion 21 is provided with an air outlet groove 24 that communicates with the charging part 22, and the air outlet 23 is provided through the charging part 22 and communicates with the mounting cavity 11.

[0050] In this embodiment, by providing an air outlet groove 24 on the protrusion 21, when the electronic device is placed on the charging unit 22 for charging, the airflow flows out from the air outlet 23 and passes through the back of the electronic device to complete heat dissipation before flowing out through the air outlet groove 24.

[0051] In one specific embodiment, heat dissipation holes can also be provided on the outer periphery of the protrusion 21. The arrangement of the heat dissipation holes is equivalent to the arrangement of the air outlet slot 24. The position, number and diameter of the heat dissipation holes can be flexibly adjusted according to actual usage requirements to achieve the best air circulation effect.

[0052] It is understood that in some other embodiments, air vents 24 and heat dissipation holes may be provided on the protrusion 21, depending on the actual situation, so as to further improve the heat dissipation effect.

[0053] In one embodiment, the wireless charger further includes a magnet assembly 70 disposed outside the wireless charging coil 30 and below the faceplate 20.

[0054] In this embodiment, by providing a magnet assembly 70 below the faceplate 20, the magnetic attraction between the magnet assembly 70 and the electronic device can be used to easily and conveniently achieve wireless charging positioning, and enable the electronic device to be stably attached to the surface of the charging unit 22, avoiding the electronic device from deviating from the charging position due to external force, thereby affecting the charging efficiency or interrupting the charging process.

[0055] Furthermore, in one embodiment, a groove adapted to the shape of the magnet assembly 70 is provided on the inner side of the protrusion 21, and the magnet assembly 70 is embedded in the groove and fixed.

[0056] In this embodiment, by providing a groove on the inner side of the protrusion 21 that matches the shape of the magnet assembly 70, and embedding and fixing the magnet assembly 70 into the groove, the installation of the magnet assembly 70 is made more stable. This not only makes reasonable use of space layout but also prevents the magnet assembly 70 from shifting due to vibration or external force, thereby ensuring the stability of the electronic device's adsorption and the reliability of the charging process, without affecting the overall structural strength and aesthetics of the protrusion 21. It is understood that since the protrusion 21 is provided with an air outlet slot 24, the shapes of the magnet assembly 70 and the groove need to be coordinated with the layout of the air outlet slot 24 to ensure smooth airflow.

[0057] In one embodiment, the wireless charger further includes a middle shell 80 disposed within the mounting cavity 11. The middle shell 80 divides the mounting cavity 11 into an upper mounting cavity and a lower mounting cavity. The middle shell 80 is provided with a vent hole 81 that connects the upper mounting cavity and the lower mounting cavity. The vent hole 81 is correspondingly disposed with respect to the coil through hole 31 and communicates with the coil through hole 31.

[0058] The wireless charging coil 30 is located in the upper mounting cavity, the motherboard 50 and the separator 60 are located in the lower mounting cavity, and the fan 40 is located in the lower mounting cavity and is situated below the coil through hole 31 or extends into the coil through hole 31.

[0059] In this embodiment, the mounting cavity 11 is divided into an upper mounting cavity and a lower mounting cavity by setting the middle shell 80. The wireless charging coil 30 is set in the upper mounting cavity, while the motherboard 50 and the separator 60 are set in the lower mounting cavity. The upper mounting cavity and the lower mounting cavity are connected by the vent 81 set on the middle shell 80, so that the airflow can flow between the upper and lower mounting cavities, thereby forming a complete airflow circulation path. Driven by the fan 40, the airflow enters from the lower mounting cavity, is delivered to the upper mounting cavity through the vent 81, and then dissipates heat from the electronic device through the air outlet 23.

[0060] In this embodiment, the middle shell 80 and the partition 60 and other structures realize functional partitioning, which not only enables efficient partitioning and utilization of the internal space, but also provides support and limiting functions, ensuring the structural strength and assembly reliability of the product.

[0061] In a specific embodiment, the middle shell 80 and the partition 60 can also be integrated into a single structure. That is, the middle shell 80 (or partition 60) divides the mounting cavity 11 into an upper mounting cavity and a lower mounting cavity, while separating the motherboard 50 from the fan 40, the coil through hole 31 and the air outlet 23. The middle shell 80 (or partition 60) is provided with a vent 81 (or air guide channel 62). The vent 81 is connected to the air inlet 12, the coil through hole 31 and the air outlet 23, thereby guiding the airflow to flow along a predetermined path.

[0062] In one embodiment, a coil limiting part 82 is provided protruding upward at the vent hole 81. The outer edge of the coil limiting part 82 is adapted to the inner wall of the coil through hole 31, and the coil through hole 31 is sleeved on the outside of the coil limiting part 82.

[0063] In this embodiment, by providing an upwardly protruding coil limiting part 82 at the vent 81 and adapting the outer edge of the coil limiting part 82 to the inner wall of the coil through hole 31, the coil through hole 31 is sleeved on the outside of the coil limiting part 82. This not only effectively limits the wireless charging coil 30, preventing it from shifting or loosening during assembly or use, but also enhances the structural fit between the middle shell 80 and the wireless charging coil 30, improving the overall assembly accuracy and stability.

[0064] In other embodiments, the top of the coil limiting part 82 can be set to directly abut the air outlet 23. This arrangement can further shorten the airflow path from the fan 40 to the air outlet 23, allowing the airflow to act more directly on the electronic device, thereby improving heat dissipation efficiency.

[0065] In one embodiment, a partition baffle 61 extends from the partition member 60. The shape of the outer edge of the partition baffle 61 is adapted to the shape of the inner wall of the bottom shell 10, and the outer edge of the partition baffle 61 abuts against the inner wall of the bottom shell 10. The shape of the top edge of the partition baffle 61 is adapted to the shape of the bottom surface of the middle shell 80, and the top edge of the partition baffle 61 abuts against the bottom surface of the middle shell 80.

[0066] An air guide channel 62 is formed on the inner side of the partition baffle 61, and the air guide channel 62 connects the air inlet 12 and the vent 81.

[0067] In this embodiment, the separator 60 abuts against the inner wall of the bottom shell 10 and the bottom surface of the middle shell 80 through the separator baffle 61, thereby forming an effective sealing structure. The air inlet 12 is connected to the vent 81 through the air guide channel 62 formed inside the separator baffle 61, thereby effectively isolating the motherboard 50 and the air guide channel 62, ensuring that the heat dissipation airflow flows along a predetermined path and improving heat dissipation efficiency.

[0068] In one embodiment, the air duct 62 includes a first ventilation slot 621 and a second ventilation slot 622 surrounded by a partition baffle 61. The first ventilation slot 621 is correspondingly disposed to the air inlet 12. The second ventilation slot 622 is connected to the first ventilation slot 621 and is correspondingly disposed to the vent 81. The fan 40 is disposed above the second ventilation slot 622 or partially extends into the second ventilation slot 622.

[0069] In this embodiment, the air guide channel 62 is composed of a first ventilation slot 621 and a second ventilation slot 622 surrounded by a partition baffle 61. The first ventilation slot 621 is correspondingly arranged to the air inlet 12, and the second ventilation slot 622 is connected to the first ventilation slot 621 and is correspondingly arranged to the vent 81. By placing the fan 40 above the second ventilation slot 622 or partially extending into the second ventilation slot 622, the external airflow is guided from the air inlet 12 to the first ventilation slot 621 by the driving force of the fan 40, and then transported to the vent 81 through the second ventilation slot 622, and finally discharged from the air outlet 23, thereby achieving efficient heat dissipation for electronic equipment and realizing efficient guidance and distribution of airflow.

[0070] In specific application scenarios, the air inlet 12 can be set on the bottom two sides (or two side surfaces) of the bottom shell 10, and two corresponding first ventilation slots 621 are set on the partition 60. The two first ventilation slots 621 are respectively located on both sides of the second ventilation slot 622, and are respectively set with one air inlet 12, thereby forming a symmetrical dual-channel air intake structure, further improving air intake efficiency and uniformity, ensuring that the fan 40 can obtain sufficient airflow supply when running at high speed, thereby improving the overall heat dissipation performance.

[0071] In one embodiment, a mounting groove 63 is provided at the bottom of the partition 60, and the motherboard 50 is installed in the mounting groove 63. In this embodiment, the motherboard 50 is securely installed at the bottom of the partition 60 through the mounting groove 63. While ensuring the stability of the motherboard 50 during the operation of the device, the reasonable layout of the partition 60 achieves spatial isolation between the motherboard 50 and other components, and also improves space utilization.

[0072] In one embodiment, the blade tip diameter of the fan 40 is smaller than the diameter of the coil through-hole 31. By designing the blade tip diameter of the fan 40 to be smaller than the diameter of the coil through-hole 31, it is ensured that the fan 40 can be smoothly installed inside the air guide channel 62 (including the coil through-hole 31 and / or the second ventilation slot 622), thereby better controlling the airflow direction and avoiding installation interference problems caused by the fan 40 being too large.

[0073] In one embodiment, the fan 40 is a centrifugal fan or an axial fan, and the air outlet direction of the fan 40 is towards the air outlet 23. In specific application scenarios, the type of fan 40 can be selected according to actual needs. For example, a centrifugal fan or an axial fan can be selected, and the air outlet direction of the fan 40 is towards the air outlet 23 to ensure that the airflow can be guided from the air inlet 12 to the air outlet 23 for discharge.

[0074] In one embodiment, the bottom surface of the bottom shell 10 is provided with a raised structure, which is used to form an air intake space between the bottom surface of the bottom shell 10 and the horizontal placement surface.

[0075] In this embodiment, the bottom surface of the base shell 10 forms an air intake space between the raised structure and the horizontal placement surface, thereby providing a channel for external airflow to enter the device, ensuring that the charger can obtain a sufficient and stable air intake source even when placed flat. Furthermore, multiple air inlets 12 can be provided on the sides and bottom of the base shell 10 to increase the air intake volume, helping to draw in more cool air and providing a sufficient airflow basis for efficient heat dissipation.

[0076] 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.

[0077] 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 by, include: The bottom shell (10) is hollow and has an installation cavity (11). The bottom shell (10) has an air inlet (12) on its side and / or bottom. 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 outlet (23). The protrusion (21) is located outside the charging part (22) and is higher than the charging part (22). A wireless charging coil (30) is disposed in the mounting cavity (11) and located below the charging part (22), with a coil through hole (31) in the middle. The coil through hole (31) is disposed corresponding to the air outlet (23) and communicates with the air outlet (23). A fan (40) is disposed inside or below the coil through hole (31); The motherboard (50) is disposed in the mounting cavity (11), and the motherboard (50) is electrically connected to the fan (40) and the wireless charging coil (30); A separator (60) is disposed above the main board (50) and separates the main board (50) from the fan (40), the coil through hole (31) and the air outlet (23). The separator (60) is provided with an air guide channel (62). The air guide channel (62) is connected with the air inlet (12), the coil through hole (31) and the air outlet (23) to form an airflow channel. The fan (40) is disposed in the airflow channel.

2. The wireless charger of claim 1, wherein, The protrusion (21) is provided with an air outlet groove (24) that communicates with the charging part (22), and the air outlet (23) is provided through the charging part (22) and communicates with the mounting cavity (11).

3. The wireless charger of claim 2, wherein, It also includes a magnet assembly (70) disposed outside the wireless charging coil (30) and below the faceplate (20).

4. The wireless charger according to claim 3, wherein the inner side of the protrusion (21) is provided with a groove adapted to the shape of the magnet assembly (70), and the magnet assembly (70) is embedded in the groove and fixed.

5. The wireless charger of claim 2, wherein, It also includes a middle shell (80), which is disposed in the mounting cavity (11) and divides the mounting cavity (11) into an upper mounting cavity and a lower mounting cavity. The middle shell (80) is provided with a vent hole (81) that connects the upper mounting cavity and the lower mounting cavity. The vent hole (81) is provided corresponding to the coil through hole (31) and is connected to the coil through hole (31). The wireless charging coil (30) is disposed in the upper mounting cavity, the motherboard (50) and the separator (60) are disposed in the lower mounting cavity, and the fan (40) is disposed in the lower mounting cavity and located below the coil through hole (31) or extends into the coil through hole (31).

6. The wireless charger of claim 5, wherein, A coil limiting part (82) is provided protruding upward at the vent (81). The outer edge of the coil limiting part (82) is adapted to the inner wall of the coil through hole (31). The coil through hole (31) is sleeved on the outside of the coil limiting part (82).

7. The wireless charger according to claim 5, characterized in that, A partition baffle (61) extends from the partition member (60). The shape of the outer edge of the partition baffle (61) is adapted to the shape of the inner wall of the bottom shell (10). The outer edge of the partition baffle (61) abuts against the inner wall of the bottom shell (10). The shape of the top edge of the partition baffle (61) is adapted to the shape of the bottom surface of the middle shell (80). The top edge of the partition baffle (61) abuts against the bottom surface of the middle shell (80). The air guide channel (62) is formed on the inner side of the partition baffle (61), and the air guide channel (62) connects the air inlet (12) and the vent (81).

8. The wireless charger according to claim 7, characterized in that, The air guide channel (62) includes a first ventilation slot (621) and a second ventilation slot (622) surrounded by the partition baffle (61). The first ventilation slot (621) is provided corresponding to the air inlet (12). The second ventilation slot (622) is connected to the first ventilation slot (621) and is provided corresponding to the vent (81). The fan (40) is provided above the second ventilation slot (622) or partially extends into the second ventilation slot (622).

9. The wireless charger according to claim 8, characterized in that, The bottom of the separator (60) is provided with a mounting groove (63), and the motherboard (50) is installed in the mounting groove (63).

10. The wireless charger according to claim 9, characterized in that, The blade tip diameter of the fan (40) is smaller than the diameter of the coil through hole (31).

11. The wireless charger according to claim 10, characterized in that, The fan (40) is a centrifugal fan or an axial fan, and the air outlet of the fan (40) is oriented towards the air outlet (23).

12. The wireless charger according to claim 11, characterized in that, The bottom surface of the bottom shell (10) is provided with a raised structure, which is used to form an air intake space between the bottom surface of the bottom shell (10) and the horizontal placement surface.

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