A wireless charger

Abstract

The utility model discloses a wireless charger, including installation bottom shell, installation top shell and heat conduction spare, installation bottom shell and installation top shell form the installation cavity and enclose, set apart the partition in installation cavity and divide into first cavity and second cavity, set up wireless charging coil and electric core in first cavity, set up fan in second cavity, and the second cavity side sets up air intake and air outlet, and the fan sets up between air intake and air outlet, and heat conduction spare first end sets up between wireless charging coil and electric core, and second end passes through partition and extends to between the air outlet of fan and the air outlet of installation bottom shell, the utility model discloses through partition and separates installation cavity and divides into first cavity and second cavity, and adopts heat conduction spare and passes through partition and connects heat source and heat dissipation system directly, and cooperates the independent air duct formed by air intake, fan and air outlet in second cavity, has constructed high -efficient heat dissipation structure, can effectively insulate the mutual interference of heat source, and the heat is quickly dissipated, and improves the heat dissipation efficiency.

Description

Technical Field

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

[0002] With the widespread use of electronic devices, wireless charging technology is becoming increasingly popular due to its convenience. During operation, the wireless charging coil and battery cells inside a wireless charger generate a significant amount of heat due to electromagnetic induction and energy conversion. If this heat cannot be dissipated in time, the device temperature will rise, affecting charging efficiency, potentially accelerating component aging, and even causing device malfunctions or safety hazards.

[0003] Most current wireless chargers use a single-cavity design with concentrated heat-generating components and a relatively simple heat dissipation channel design. This makes them prone to heat leakage and accumulation inside, resulting in limited heat dissipation efficiency. Some products have attempted to introduce fans for active cooling, but because the heat source is not effectively isolated, the airflow is easily interfered with, and the overall heat dissipation effect remains unsatisfactory.

[0004] Therefore, how to provide a wireless charger structure that can physically isolate heat-generating components and achieve efficient directional heat dissipation to improve heat dissipation performance and operational stability is a problem to be solved by those skilled in the art. 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, including a mounting bottom shell, a mounting top shell, and a heat-conducting component;

[0007] The mounting top shell surface is provided with a charging area, the mounting bottom shell and the mounting top shell together form a mounting cavity, and a partition is provided in the mounting cavity, the partition dividing the mounting cavity into a first cavity and a second cavity that are isolated from each other;

[0008] The first cavity is provided with a wireless charging coil and a battery cell. The battery cell is located below the heat-conducting component and is electrically connected to the wireless charging coil. The wireless charging coil is located inside the mounting top shell and is correspondingly located to the charging area.

[0009] The second cavity is equipped with a fan and a control motherboard. The two sides of the second cavity are respectively provided with an air inlet and an air outlet. The fan and the control motherboard are located between the air inlet and the air outlet. The air inlet end of the fan corresponds to the air inlet, and the air outlet end corresponds to the air outlet. The control motherboard is electrically connected to the fan and the wireless charging coil.

[0010] The first end of the heat-conducting component is disposed between the wireless charging coil and the battery cell, and the second end extends through the separator into the second cavity. The second end of the heat-conducting component is located between the air outlet of the fan and the air outlet of the mounting base. The heat-conducting component is used to transfer the heat of the wireless charging coil and / or the battery cell from the first cavity to the second cavity.

[0011] In one embodiment, a sealing structure is provided at the junction of the separator and the heat-conducting component to maintain air isolation between the first cavity and the second cavity.

[0012] In one embodiment, an air guide channel is formed in the second cavity, the fan is disposed in the air guide channel, and the air guide channel is divided into an air inlet cavity and an air outlet cavity. The air inlet end connects the air inlet cavity and the air inlet, the air outlet end connects the air outlet cavity and the air outlet, and the second end of the heat-conducting element is located in the air outlet cavity.

[0013] In one embodiment, the mounting top shell extends into the second cavity and is provided with a partition wall, the inner side of which forms the air guide channel, and the shape and size of the partition wall are adapted to the outline of the fan.

[0014] In one embodiment, the shape of the control motherboard is adapted to the internal structure of the second cavity, and the control motherboard is horizontally disposed in the second cavity, dividing the second cavity into an upper heat dissipation cavity and a lower heat dissipation cavity;

[0015] The control motherboard abuts against the partition wall to form the air guide channel, and a first heat dissipation hole is provided on the bottom surface of the lower heat dissipation cavity corresponding to the mounting base, and the first heat dissipation hole is connected to the lower heat dissipation cavity.

[0016] In one embodiment, a second heat dissipation hole is also provided on the side of the mounting base, the second heat dissipation hole being located on the side of the first cavity and close to the wireless charging coil.

[0017] In one embodiment, a charging interface is provided on the side of the mounting base corresponding to the lower heat dissipation cavity, and the charging interface is electrically connected to the control motherboard.

[0018] In one embodiment, the second end of the heat-conducting element is provided with a heat dissipation structure that increases the heat dissipation area.

[0019] In one embodiment, the material of the thermally conductive element is one or a combination of copper, aluminum, graphene, and thermally conductive silicone.

[0020] In one embodiment, a magnet assembly is also provided in the first cavity, the magnet assembly being disposed on the outer periphery of the wireless charging coil and on the inner side of the mounting top shell.

[0021] This embodiment of the invention isolates the mounting cavity into a first cavity and a second cavity by setting a separator, and uses a heat-conducting component to directly connect the heat source and the heat dissipation system through the separator. In addition, the second cavity has an independent air duct formed by an air inlet, a fan and an air outlet, which constructs a highly efficient physical heat dissipation structure. This can effectively isolate the mutual interference between heat sources and quickly conduct and dissipate heat, thereby improving heat dissipation efficiency, significantly reducing the operating temperature of the wireless charging coil and the battery cell, and improving charging efficiency and safety. Attached Figure Description

[0022] 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.

[0023] Figure 1 A schematic diagram of the structure of a wireless charger provided in an embodiment of this utility model;

[0024] Figure 2 This is another structural schematic diagram of a wireless charger provided in an embodiment of the present utility model;

[0025] Figure 3 An exploded view of a wireless charger provided for an embodiment of this utility model;

[0026] Figure 4 A schematic diagram of the inner side of a wireless charger with a top shell installed, provided for an embodiment of this utility model;

[0027] Figure 5 This is an example diagram of the installation of a fan in a wireless charger, provided as an embodiment of the present invention.

[0028] Markings in the image:

[0029] 10. Install the bottom shell; 11. Divider; 12. Air inlet; 13. Air outlet; 14. First heat dissipation hole; 15. Second heat dissipation hole; 16. Charging interface; 20. Install the top shell; 21. Air guide channel; 22. Divider wall; 30. Heat conduction component; 31. Heat dissipation structure; 40. Wireless charging coil; 50. Battery cell; 60. Fan; 70. Control motherboard; 80. Magnet assembly; 90. Barley paper. Detailed Implementation

[0030] 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.

[0031] 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.

[0032] 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.

[0033] 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.

[0034] Please see below. Figures 1-5 The present invention provides a wireless charger, which specifically includes a mounting bottom shell 10, a mounting top shell 20, and a heat-conducting component 30.

[0035] The surface of the mounting top shell 20 is provided with a charging area. The mounting bottom shell 10 and the mounting top shell 20 together form a mounting cavity. A partition 11 is provided inside the mounting cavity, which divides the mounting cavity into a first cavity and a second cavity that are isolated from each other.

[0036] The first cavity is provided with a wireless charging coil 40 and a battery cell 50. The battery cell 50 is located below the heat-conducting component 30 and is electrically connected to the wireless charging coil 40. The wireless charging coil 40 is located inside the mounting top shell 20 and is correspondingly located to the charging area.

[0037] The second cavity is equipped with a fan 60 and a control motherboard 70. The two sides of the second cavity are respectively provided with an air inlet 12 and an air outlet 13. The fan 60 and the control motherboard 70 are located between the air inlet 12 and the air outlet 13. The air inlet end of the fan 60 corresponds to the air inlet 12 and the air outlet end corresponds to the air outlet 13. The control motherboard 70 is electrically connected to the fan 60 and the wireless charging coil 40.

[0038] The first end of the heat-conducting element 30 is disposed between the wireless charging coil 40 and the battery cell 50, and the second end extends through the separator 11 into the second cavity. The second end of the heat-conducting element 30 is located between the air outlet of the fan 60 and the air outlet 13 of the mounting base 10. The heat-conducting element 30 is used to transfer the heat of the wireless charging coil 40 and / or the battery cell 50 from the first cavity to the second cavity.

[0039] In this embodiment, the mounting cavity is divided into a first cavity and a second cavity by setting a separator 11, and a heat-conducting component 30 is used to directly connect the heat source and the heat dissipation system through the separator 11. In addition, an independent air duct formed by the air inlet 12, the fan 60 and the air outlet 13 in the second cavity is used to construct a highly efficient physical heat dissipation structure 31, which can effectively isolate the mutual interference between heat sources and quickly conduct and dissipate heat, thereby improving heat dissipation efficiency, significantly reducing the operating temperature of the wireless charging coil 40 and the battery cell 50, and improving charging efficiency and safety of use.

[0040] Furthermore, this embodiment avoids openings on the top surface of the mounting shell 20 or the charging area by providing air inlets 12 and outlets 13 on the sides, maintaining the integrity and aesthetics of the charging area surface. This also reduces the possibility of dust and impurities entering the device, further improving product reliability and lifespan. Moreover, by placing the air inlets 12 and outlets 13 on two different sides, airflow short-circuiting is avoided, ensuring a more rational airflow path for the cooling system and improving overall heat dissipation efficiency.

[0041] In one embodiment, a sealing structure is provided at the junction of the separator 11 and the heat-conducting element 30 to maintain air isolation between the first cavity and the second cavity. This sealing structure effectively prevents heat and air from flowing from the first cavity to the second cavity, avoiding heat diffusion between the cavities or the convergence of hot and cold air within the internal cavities, thereby further ensuring the independence and efficiency of the heat dissipation system. Simultaneously, the sealing structure effectively prevents external dust and impurities from entering the first cavity through the gap between the heat-conducting element 30 and the separator 11, maintaining the cleanliness and stable operation of the internal components. Specifically, the sealing structure can employ elastic sealing elements such as rubber sealing rings or sealing gaskets, or other forms of sealing structures can be selected according to actual needs.

[0042] In one embodiment, an air guide channel 21 is formed in the second cavity, a fan 60 is disposed in the air guide channel 21, and the air guide channel 21 is divided into an air inlet cavity and an air outlet cavity. The air inlet end is connected to the air inlet cavity and the air inlet 12, and the air outlet end is connected to the air outlet cavity and the air outlet 13. The second end of the heat conduction element 30 is located in the air outlet cavity.

[0043] In this embodiment, by setting the air guide channel 21 to isolate the air inlet and air outlet of the fan 60, an independent airflow channel is formed between the air inlet cavity and the air outlet cavity, thereby effectively improving the heat dissipation efficiency of the fan 60 and reducing the possibility of airflow short circuit; at the same time, the design of the air guide channel 21 can also guide the airflow to flow precisely to the second end of the heat guide component 30, thereby improving the heat dissipation efficiency.

[0044] Combination Figure 4 and Figure 5 As shown, in one embodiment, a partition wall 22 is provided extending from the top shell 20 into the second cavity, and an air guide channel 21 is formed on the inner side of the partition wall 22. The shape and size of the partition wall 22 are adapted to the outline of the fan 60.

[0045] In this embodiment, an air guide channel 21 is formed by setting a partition wall 22. Figure 4 and Figure 5 The top housing 20 is installed in an inverted view, therefore the orientation of the fan 60 and the heat-conducting component 30 is different from that of the top housing 20. Figure 3 (There are some differences), and the fan 60 is installed on the inner side of the partition wall 22, allowing the fan 60 to fit more tightly against the inner wall of the air guide channel 21, thereby reducing airflow leakage, avoiding crossflow and airflow short circuits, and improving the air delivery efficiency of the fan 60. At the same time, the design of the partition wall 22 also provides a certain degree of fixation and support for the fan 60, ensuring that the fan 60 remains stable during operation and avoiding noise or efficiency reduction caused by vibration and displacement. In addition, the layout of the air guide channel 21 can be optimized according to the airflow direction of the fan 60, making the air intake and exhaust smoother and further improving the overall heat dissipation performance.

[0046] In one embodiment, the shape of the control motherboard 70 is adapted to the internal structure of the second cavity, and the control motherboard 70 is horizontally disposed in the second cavity, dividing the second cavity into an upper heat dissipation cavity and a lower heat dissipation cavity;

[0047] The control motherboard 70 abuts against the partition wall 22 to form an air guide channel 21. The bottom surface of the lower heat dissipation cavity corresponding to the mounting base 10 is provided with a first heat dissipation hole 14, which is connected to the lower heat dissipation cavity.

[0048] In this embodiment, the control motherboard 70 is horizontally positioned within the second cavity and tightly fitted against the partition wall 22. This effectively utilizes the structure of the control motherboard 70 itself as part of the airflow channel 21. By abutting the control motherboard 70 against the partition wall 22, a complete airflow channel 21 is formed in conjunction with the structure of the mounting top shell 20 for airflow guidance and control. Simultaneously, the control motherboard 70 divides the second cavity into an upper heat dissipation cavity and a lower heat dissipation cavity, allowing airflow to pass through the two cavities separately, creating a more orderly heat dissipation path and further improving heat dissipation efficiency.

[0049] Specifically, the upper heat dissipation cavity uses a duct 21 to quickly remove heat from the first cavity from the second end of the heat-conducting component 30, while the lower heat dissipation cavity connects to the outside through a first heat dissipation hole 14 at the bottom. This allows heat from the motherboard 70 to be naturally dissipated into the external environment through the first heat dissipation hole 14, achieving a dual heat dissipation effect. It is understandable that since the motherboard 70 forms part of the duct 21, its own heat is also carried away by the airflow, further improving the overall heat dissipation efficiency.

[0050] In one embodiment, a second heat dissipation hole 15 is also provided on the side of the mounting base 10. The second heat dissipation hole 15 is located on the side of the first cavity and close to the wireless charging coil 40.

[0051] In this embodiment, the heat generated at the wireless charging coil 40 within the first cavity can be naturally dissipated through the second heat dissipation hole 15 provided on the side of the mounting base 10, thereby further improving heat dissipation efficiency. It is understood that a battery cell 50 is also provided within the first cavity, and the battery cell 50 also generates heat during operation. The second heat dissipation hole 15 allows this heat to be dissipated promptly, preventing heat accumulation within the first cavity and affecting the normal operation of the device. The number of second heat dissipation holes 15 can be set according to actual needs; for example, one or more can be provided to meet the heat dissipation requirements in different scenarios.

[0052] In specific application scenarios, barley paper 90 can be laid on top of the battery cell 50 to separate the battery cell 50 from the heat-conducting component 30 and the wireless charging coil 40, thereby insulating and protecting the battery cell 50, improving the safety of its use, and also allowing the heat of the battery cell 50 to be dissipated and distributed more evenly, facilitating the heat conduction of the heat by the heat-conducting component 30. Furthermore, thermally conductive silicone can be applied at the contact point between the heat-conducting component 30 and the wireless charging coil 40 to enhance thermal conductivity.

[0053] In one embodiment, a charging interface 16 is provided on the side of the mounting base 10 corresponding to the lower heat dissipation cavity, and the charging interface 16 is electrically connected to the control motherboard 70.

[0054] In this embodiment, the charging interface 16 is located on the side of the mounting base 10 corresponding to the lower heat dissipation cavity. This not only facilitates the plugging and unplugging of external charging cables but also avoids interference with the airflow channel 21 inside the upper heat dissipation cavity caused by the opening, thereby ensuring the integrity and efficiency of the airflow path. At the same time, the airflow inside the lower heat dissipation cavity can also be used to dissipate heat from the area surrounding the charging interface 16.

[0055] In one embodiment, the second end of the heat-conducting element 30 is provided with a heat dissipation structure 31 to increase the heat dissipation area.

[0056] In this embodiment, by providing a heat dissipation structure 31 with an increased heat dissipation area at the second end of the heat-conducting component 30, the heat dissipation efficiency of the heat-conducting component 30 can be effectively improved, thereby further optimizing the overall heat dissipation performance.

[0057] In specific application scenarios, the heat dissipation structure 31 can be a concave-convex structure, a hollow mesh structure, or other structural designs that can increase the surface area to improve the heat dissipation efficiency.

[0058] In one embodiment, the material of the thermal conductive element 30 is one or a combination of copper, aluminum, graphene, and thermally conductive silicone.

[0059] In this embodiment, by selecting one or more combinations of copper, aluminum, graphene, and thermally conductive silicone as the material for the thermally conductive component 30, the thermal conductivity advantages of different materials can be fully utilized, thereby further improving thermal conductivity efficiency. It is understood that the combination of different materials can also be flexibly adjusted according to actual usage scenarios to meet different heat dissipation requirements.

[0060] In one embodiment, a magnet assembly 80 is also provided in the first cavity. The magnet assembly 80 is disposed on the outer periphery of the wireless charging coil 40 and on the inner side of the mounting top shell 20.

[0061] In this embodiment, by setting a magnet assembly 80 around the outer periphery of the wireless charging coil 40 and placing it inside the mounting top shell 20, the magnetic attraction of the magnet assembly 80 can be used to attach the electronic device to the mounting top shell 20 (charging area) for wireless charging, improving user convenience and charging stability. In specific application scenarios, the layout and number of magnet assemblies 80 can be adapted to the size of the charging device and magnetic attraction requirements. For example, the magnet assembly 80 can be composed of multiple spaced magnet units or a one-piece ring magnet structure; the specific form can be flexibly selected according to product design requirements.

[0062] 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.

[0063] 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, It includes a mounting base (10), a mounting top shell (20), and a heat-conducting component (30); The mounting top shell (20) has a charging area on its surface. The mounting bottom shell (10) and the mounting top shell (20) together form a mounting cavity. A partition (11) is provided in the mounting cavity, and the partition (11) divides the mounting cavity into a first cavity and a second cavity that are isolated from each other. The first cavity is provided with a wireless charging coil (40) and a battery cell (50). The battery cell (50) is located below the heat-conducting component (30) and is electrically connected to the wireless charging coil (40). The wireless charging coil (40) is located inside the mounting top shell (20) and is correspondingly located to the charging area. The second cavity is provided with a fan (60) and a control motherboard (70). The two sides of the second cavity are respectively provided with an air inlet (12) and an air outlet (13). The fan (60) and the control motherboard (70) are located between the air inlet (12) and the air outlet (13). The air inlet end of the fan (60) corresponds to the air inlet (12), and the air outlet end corresponds to the air outlet (13). The control motherboard (70) is electrically connected to the fan (60) and the wireless charging coil (40). The first end of the heat-conducting element (30) is disposed between the wireless charging coil (40) and the battery cell (50), and the second end extends through the separator (11) into the second cavity. The second end of the heat-conducting element (30) is located between the air outlet of the fan (60) and the air outlet (13) of the mounting base (10). The heat-conducting element (30) is used to transfer the heat of the wireless charging coil (40) and / or the battery cell (50) from the first cavity to the second cavity.

2. The wireless charger according to claim 1, characterized in that, A sealing structure is provided at the junction of the separator (11) and the heat-conducting component (30) to maintain the air isolation effect between the first cavity and the second cavity.

3. The wireless charger according to claim 1, characterized in that, A guide channel (21) is formed in the second cavity. The fan (60) is disposed in the guide channel (21) and divides the guide channel (21) into an air inlet cavity and an air outlet cavity. The air inlet end connects the air inlet cavity and the air inlet (12), and the air outlet end connects the air outlet cavity and the air outlet (13). The second end of the heat-conducting element (30) is located in the air outlet cavity.

4. The wireless charger according to claim 3, characterized in that, The mounting top shell (20) extends into the second cavity and is provided with a partition wall (22). The air guide channel (21) is formed on the inner side of the partition wall (22). The shape and size of the partition wall (22) are adapted to the outline of the fan (60).

5. The wireless charger according to claim 4, characterized in that, The shape of the control motherboard (70) is adapted to the internal structure of the second cavity. The control motherboard (70) is horizontally disposed in the second cavity and divides the second cavity into an upper heat dissipation cavity and a lower heat dissipation cavity. The control motherboard (70) abuts against the partition wall (22) to form the air guide channel (21). The bottom surface of the lower heat dissipation cavity corresponding to the mounting base (10) is provided with a first heat dissipation hole (14), which is connected to the lower heat dissipation cavity.

6. The wireless charger according to claim 5, characterized in that, A second heat dissipation hole (15) is also provided on the side of the mounting base (10). The second heat dissipation hole (15) is located on the side of the first cavity and close to the wireless charging coil (40).

7. The wireless charger according to claim 5, characterized in that, A charging interface (16) is provided on the side of the mounting base (10) corresponding to the lower heat dissipation cavity, and the charging interface (16) is electrically connected to the control motherboard (70).

8. The wireless charger according to claim 1, characterized in that, The second end of the heat-conducting component (30) is provided with a heat dissipation structure (31) that increases the heat dissipation area.

9. The wireless charger according to claim 1, characterized in that, The material of the thermal conductive component (30) is one or a combination of copper, aluminum, graphene and thermally conductive silicone.

10. The wireless charger according to claim 1, characterized in that, The first cavity is also provided with a magnet assembly (80), which is located on the outer periphery of the wireless charging coil (40) and on the inner side of the mounting top shell (20).

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