Foreign matter prevention heat dissipation structure and wireless charging device

Abstract

The utility model relates to a kind of foreign matter prevention heat dissipation structure and wireless charging device, wherein foreign matter prevention heat dissipation structure includes: mounting seat, including the air duct extending along height direction;And fan assembly, including fan seat and fan, the fan seat is connected with the mounting seat to form cavity, the fan is located in the cavity, the cavity is communicated with one end of the air duct, the other end of the air duct forms air outlet, the air outlet is equipped with non-woven fabric.The utility model can effectively block the invasion of external foreign matter from air outlet into air duct inside while not affecting the exhaust of heat dissipation airflow, ensure the heat dissipation efficiency and service life of heat dissipation structure.

Description

Technical Field

[0001] This utility model relates to the field of charging devices, and more specifically, to a heat dissipation structure for preventing foreign objects and a wireless charging device. Background Technology

[0002] When a phone is wirelessly charging, the coil inside the phone heats up, causing the phone's temperature to rise. When the phone's temperature exceeds its over-temperature protection threshold, the charging power is reduced, slowing down the charging speed. Currently, car wireless chargers on the market have increasingly higher power outputs. To ensure continuous and fast charging while the vehicle is in motion, car wireless chargers typically add fans to cool the phone. Existing cooling structures use fans that blow air through ducts to the back of the phone for cooling. During use, foreign objects often enter the ducts through the vents on the panel, eventually reaching the fan blades and causing abnormal fan noise or blockage. Utility Model Content

[0003] The purpose of this invention is to provide a foreign object-proof heat dissipation structure and a wireless charging device, which can effectively block external foreign objects from entering the air duct from the air outlet without affecting the exhaust of heat dissipation airflow, thus ensuring the heat dissipation efficiency and service life of the heat dissipation structure.

[0004] A foreign object-proof heat dissipation structure includes: a mounting base including an air duct extending along the height direction; and a fan assembly including a fan base and a fan, wherein the fan base is connected to the mounting base to form a cavity, the fan is disposed in the cavity, the cavity is connected to one end of the air duct, the other end of the air duct forms an air outlet, and the air outlet is provided with non-woven fabric.

[0005] In the above technical solution, by placing non-woven fabric at the air outlet of the air duct, a physical barrier can be formed. This effectively prevents external foreign objects (such as dust and particles) from entering the air duct from the outlet without affecting the exhaust of heat dissipation airflow. This avoids the accumulation of foreign objects affecting heat dissipation efficiency and extends the service life of the heat dissipation structure. At the same time, the non-woven fabric structure is lightweight and thin, requiring no additional space and maintaining the original spatial layout of the heat dissipation structure, which is conducive to a more compact structure. Furthermore, the non-woven fabric is easy to install, ensuring convenient assembly.

[0006] Furthermore, the mounting base includes a panel, the air outlet is disposed on the panel, and non-woven fabric is attached to the panel and covers the air outlet.

[0007] In the above technical solution, the non-woven fabric is directly attached to the panel surface and covers the air outlet, which simplifies the installation process of the non-woven fabric. At the same time, the planar structure of the panel ensures the tightness of the non-woven fabric and the air outlet, preventing foreign objects from seeping in from the edge gaps.

[0008] Furthermore, the air outlet includes several support ribs for supporting the nonwoven fabric.

[0009] In the above technical solution, the support ribs are distributed in the air outlet area to provide support for the non-woven fabric, prevent the non-woven fabric from collapsing and deforming due to airflow pressure or external contact, and maintain its flat state to ensure filtration effect and uniform airflow.

[0010] Furthermore, the panel is provided with a support member, and the surface of the support member facing away from the mounting base forms a support surface.

[0011] In the above technical solution, the support component can support the charging device through the support surface, thereby ensuring the stability of the device during the charging process.

[0012] Furthermore, an air distribution cavity is formed between the support member and the panel, and the air outlet is connected to the air distribution cavity.

[0013] In the above technical solution, the air distribution cavity is connected to the air outlet to ensure that the airflow is blown out evenly from below the support, thereby improving the heat dissipation efficiency.

[0014] Furthermore, the support member is provided with several through holes, which connect the air distribution cavity and the support surface.

[0015] In the above technical solution, the through hole connects the air distribution cavity with the support surface to form a flow channel, which further optimizes the airflow uniformity and improves the heat dissipation effect.

[0016] Furthermore, the support member is provided with an air guide, which is connected to the air outlet and faces the support surface, and the non-woven fabric is located between the air guide and the air outlet.

[0017] In the above technical solution, the air vent guides the airflow in a directional manner toward the support surface, which can ensure that the airflow blows toward the charging electronic device and improve heat dissipation efficiency.

[0018] Furthermore, the mounting base has a mounting cavity, and the air duct is located on one side of the mounting cavity.

[0019] In the above technical solution, the spatial separation design of the mounting cavity and the air duct isolates the heat dissipation airflow path from other components inside the device, preventing foreign objects from entering the core area of ​​the device through the air duct, and at the same time preventing the airflow from carrying internal heat to the charging electronic device.

[0020] Furthermore, the lower end face of the fan base is provided with several ventilation holes.

[0021] In the above technical solution, the ventilation hole at the lower end of the fan base forms an auxiliary air inlet, which, together with the air duct and air outlet, forms an airflow path, improving heat dissipation efficiency while reducing the risk of high-level floating foreign objects being sucked in through the low-level air intake design.

[0022] This utility model also provides a wireless charging device, including the above-mentioned foreign object protection and heat dissipation structure.

[0023] Compared with existing technologies, the beneficial effects of this utility model are as follows: By placing non-woven fabric at the air outlet of the air duct, a physical barrier can be formed. This effectively prevents external foreign objects (such as dust and particles) from entering the air duct from the air outlet without affecting the exhaust of the heat dissipation airflow, thus avoiding the accumulation of foreign objects that affect heat dissipation efficiency and extending the service life of the heat dissipation structure. At the same time, the non-woven fabric structure is lightweight and thin, requiring no additional space and maintaining the original spatial layout of the heat dissipation structure, which is conducive to a more compact structure. Furthermore, the non-woven fabric is easy to attach, ensuring convenient assembly. Attached Figure Description

[0024] Figure 1 This is an exploded view of the heat dissipation structure for preventing foreign objects in the first embodiment of this utility model.

[0025] Figure 2 This is a cross-sectional schematic diagram of the heat dissipation structure for preventing foreign objects in the first embodiment of this utility model.

[0026] Figure 3 for Figure 2 A magnified view of a portion of the image.

[0027] Figure 4 This is an exploded view of the heat dissipation structure for preventing foreign objects in the second embodiment of this utility model.

[0028] Explanation of icon numbers:

[0029] Mounting base 1, air duct 11, air outlet 12, mounting cavity 13, panel 14, support rib 15, fan assembly 2, fan base 21, fan 22, cavity 23, non-woven fabric 3, support component 4, support surface 41, air distribution cavity 42, through hole 43, air guide 44. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0031] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0032] Please refer to Figures 1 to 3 The first embodiment of this utility model describes a foreign object-proof heat dissipation structure that mainly includes a mounting base 1 and a fan assembly 2. The mounting base 1 includes an air duct 11 extending along its height. The fan assembly 2 includes a fan seat 21 and a fan 22. The fan seat 21 is connected to the mounting base 1 to form a cavity 23. The fan 22 is disposed within the cavity 23. The cavity 23 is connected to one end of the air duct 11, and the other end of the air duct 11 forms an air outlet 12, which is provided with non-woven fabric 3.

[0033] For example, the mounting base 1 has a mounting cavity 13 for accommodating a charging component, which can be an existing wireless charging module. An air duct 11 is located on one side of the mounting cavity 13 and is isolated from it. By separating the mounting cavity 13 from the air duct 11, the heat dissipation airflow path can be isolated from other components inside the device, preventing foreign objects from entering the core area of ​​the device through the air duct 11, and preventing airflow from carrying internal heat to the charging electronic device. A fan mount 21 is connected to the lower end face of the mounting base 1. A fan 22 is disposed within a cavity 23 formed by the fan mount 21 and the mounting base 1. The upper end of the cavity 23 is open and communicates with the air duct 11. The fan 22 generates airflow, which is discharged from the air outlet 12 through the air duct 11, thereby dissipating heat from the electronic device. The non-woven fabric 3 can be an existing material. By placing the non-woven fabric 3 at the air outlet 12 of the air duct 11, a physical barrier can be formed. While not affecting the exhaust of heat dissipation airflow, it effectively prevents external foreign objects (such as dust, particles, etc.) from entering the air duct 11 from the air outlet 12, thereby avoiding the accumulation of foreign objects that affect heat dissipation efficiency and extending the service life of the heat dissipation structure. At the same time, the non-woven fabric 3 is lightweight and thin, requiring no additional space, maintaining the original spatial layout of the heat dissipation structure, which is conducive to making the structure more compact. Furthermore, the non-woven fabric 3 is easy to install, ensuring the convenience of assembly.

[0034] Mounting base 1 includes a panel 14, an air outlet 12 disposed on the panel 14, and a non-woven fabric 3 attached to the panel 14 and covering the air outlet 12. For example, the panel 14 is located at the upper end of the mounting base 1, and the panel 14 has through holes corresponding to the air knife to form the air outlet 12. The non-woven fabric 3 is adhered to the surface of the panel 14 and covers the air outlet 12 by using water or double-sided adhesive, simplifying the installation process of the non-woven fabric 3. At the same time, the planar structure of the panel 14 ensures a tight fit between the non-woven fabric 3 and the air outlet 12, preventing foreign objects from seeping in from edge gaps.

[0035] In this embodiment, the air outlet 12 includes a plurality of support ribs 15 for supporting the nonwoven fabric 3. The support ribs 15 can be arranged at intervals along the length of the air outlet 12. By distributing the plurality of support ribs 15 in the area of ​​the air outlet 12, the nonwoven fabric 3 can be supported, preventing the nonwoven fabric 3 from collapsing or deforming due to airflow pressure or external contact, and maintaining its flat state to ensure filtration effect and uniform airflow.

[0036] In this embodiment, a support member 4 is provided on the panel 14, and the surface of the support member 4 facing away from the mounting base 1 is formed as a support surface 41. The support member 4 can support the charging device through the support surface 41, thereby ensuring the stability of the device during the charging process.

[0037] An air distribution cavity 42 is formed between the support member 4 and the panel 14, and the air outlet 12 is connected to the air distribution cavity 42. For example, the air distribution cavity 42 is located between the support member 4 and the panel 14, and the air outlet 12 is located at one end of the air distribution cavity 42. The air outlet 12 is connected to the air distribution cavity 42, so that the airflow is discharged from the air outlet 12 and enters the air distribution cavity 42, and is blown out evenly from below the support member 4, thereby improving the heat dissipation efficiency.

[0038] The support member 4 is provided with several through holes 43, which connect the air distribution cavity 42 and the support surface 41. The through holes 43 connect the air distribution cavity 42 and the support surface 41 to form a flow guiding channel, further optimizing the airflow uniformity and improving the heat dissipation effect.

[0039] Please refer to Figure 4 In the second embodiment of this utility model, the support member 4 is provided with an air guide 44, which is connected to the air outlet 12 and faces the support surface 41. The non-woven fabric 3 is located between the air guide 44 and the air outlet 12. The air guide 44 directs the airflow toward the support surface 41, ensuring that the airflow blows onto the charging electronic device and improves heat dissipation efficiency.

[0040] In the above embodiment, the lower end face of the fan base 21 is provided with several ventilation holes. The ventilation holes at the lower end of the fan base 21 form an auxiliary air inlet, which, together with the air duct 11 and the air outlet 12, forms an airflow path, improving heat dissipation efficiency while reducing the risk of high-level floating foreign objects being sucked in through the low-level air intake design.

[0041] This utility model also provides a wireless charging device, including the aforementioned foreign object protection and heat dissipation structure. It is understood that since the wireless charging device includes the aforementioned foreign object protection and heat dissipation structure, it also possesses the beneficial effects of the aforementioned foreign object protection and heat dissipation structure.

[0042] In the description of this utility model, it should be understood that terms such as "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0043] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0044] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A foreign object-proof heat dissipation structure, characterized in that, include: Mounting base, including air ducts extending along the height direction; as well as A fan assembly includes a fan base and a fan. The fan base is connected to the mounting base to form a cavity. The fan is disposed in the cavity. The cavity is connected to one end of the air duct. The other end of the air duct forms an air outlet. The air outlet is provided with non-woven fabric.

2. The foreign object-proof heat dissipation structure according to claim 1, characterized in that, The mounting base includes a panel, the air outlet is located on the panel, and non-woven fabric is attached to the panel and covers the air outlet.

3. The foreign object-proof heat dissipation structure according to claim 2, characterized in that, The air outlet includes several support ribs for supporting the nonwoven fabric.

4. The foreign object-proof heat dissipation structure according to claim 3, characterized in that, The panel is provided with a support member, and the surface of the support member facing away from the mounting base forms a support surface.

5. The foreign object-proof heat dissipation structure according to claim 4, characterized in that, An air distribution cavity is formed between the support member and the panel, and the air outlet is connected to the air distribution cavity.

6. The foreign object-proof heat dissipation structure according to claim 5, characterized in that, The support member is provided with several through holes, which connect the air distribution cavity and the support surface.

7. The foreign object-proof heat dissipation structure according to claim 3, characterized in that, The support member is provided with an air guide, which is connected to the air outlet and faces the support surface. The non-woven fabric is located between the air guide and the air outlet.

8. The foreign object-proof heat dissipation structure according to claim 1, characterized in that, The mounting base has a mounting cavity, and the air duct is located on one side of the mounting cavity.

9. The foreign object-proof heat dissipation structure according to claim 1, characterized in that, The lower end face of the fan base is provided with several ventilation holes.

10. A wireless charging device, characterized in that, Includes the foreign object heat dissipation structure as described in any one of claims 1 to 9.

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