Wireless charger
By incorporating gaps, tilted blades, and through-holes in the fan module within the wireless charger, the problem of fan jamming and reduced heat dissipation caused by foreign objects entering the device is solved. This enables automatic removal of foreign objects and efficient heat dissipation, improving the reliability and ease of use of the device.
Patent Information
- Application Number
- CN202423264743.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2034-12-30
AI Technical Summary
In existing wireless chargers, foreign objects can easily enter the fan module during use, causing jamming, abnormal noise, and damage, and affecting heat dissipation performance.
The fan module is designed with gaps between the blades to allow foreign objects to pass through, and these gaps are positioned at the air outlet and air inlet respectively, allowing foreign objects to fall naturally under gravity. The inclined blade design enhances airflow, while the inclined blades and the grid-like through holes in the ribs prevent foreign objects from entering. The support and air guide channels optimize airflow and form an effective heat dissipation channel.
It effectively removes foreign objects, prevents air duct blockage, improves heat dissipation efficiency and equipment cleanliness, extends equipment life, and ensures the stability and convenience of the charger.
Smart Images
Figure CN223844092U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of wireless charger technology, and more specifically, to a wireless charger. Background Technology
[0002] Existing wireless chargers typically include key components such as a housing, a charging module, and a fan module. The fan module is used to dissipate heat from the electronic device during charging, improving charging efficiency. However, due to design or environmental limitations, wireless chargers are often surrounded by various small objects (foreign objects), such as snack crumbs, hair, and dust. If these foreign objects enter the wireless charger, they can cause the fan to jam, make abnormal noises, or even be damaged, severely impacting the charger's heat dissipation performance. Utility Model Content
[0003] The purpose of this invention is to provide a wireless charger that can promptly remove foreign objects that enter the casing, prevent damage to the fan module, and improve the heat dissipation performance of the wireless charger.
[0004] A wireless charger includes a housing, a fan module, and a charging module installed inside the housing. An air duct is formed inside the housing, with an air inlet and an air outlet at each end. At least a portion of the air outlet faces the air inlet. The fan module is disposed inside the housing and located above the air outlet. The fan module has several fan blades, with a gap between adjacent fan blades allowing foreign objects to pass through. The charging module includes a circuit board that allows the fan module to switch between an operating state and a stationary state. When the fan module is stationary, at least one of the gaps faces the air inlet.
[0005] In the above technical solution, when the fan module is stationary, if a foreign object accidentally enters the housing through the air inlet, it will fall naturally under gravity due to the fact that at least part of the air outlet is opposite to the air inlet, and there are gaps between the fan blades of the fan module that allow the foreign object to pass through. As the foreign object moves, it will be discharged from the housing through these gaps in time, thus avoiding the risk of foreign objects accumulating inside the housing or causing airflow blockage. When electronic equipment is placed on the housing, the fan module is in operation, and the rotating fan blades bring outside air to the electronic equipment, carrying away its heat. Subsequently, the hot air enters the airflow through the air inlet and is finally guided to the air outlet, and then discharged from the housing. This process achieves the purpose of heat dissipation by removing heat from the electronic equipment. During the operation of the fan module, the rotation of the fan blades not only helps with heat dissipation, but also blows away and discharges foreign objects (such as tiny dust particles or debris) remaining in the airflow through the airflow, further enhancing the cleanliness and reliability of the equipment.
[0006] Furthermore, the fan blades are formed with a structure that is inclined toward the air outlet side.
[0007] In the above technical solution, this inclined design not only helps to increase the airflow intensity generated when the fan blades rotate and improve heat dissipation efficiency, but also guides foreign objects to slide down the inclined surface of the fan blades to the air outlet to a certain extent, reducing the residence time of foreign objects between the fan blades and reducing the risk of blockage.
[0008] Furthermore, the air inlet is provided with a plurality of first ribs, which divide the air inlet into a plurality of grid-like through holes.
[0009] In the above technical solution, the first rib effectively prevents larger foreign objects from entering the charger, while the mesh-like perforations allow air to pass through smoothly, ensuring heat dissipation. This design improves the ability to prevent foreign objects from entering while also ensuring good airflow.
[0010] Furthermore, the side of the housing near the air inlet is formed as a support for supporting electronic equipment.
[0011] In the above technical solution, the support unit enables the wireless charger to provide support for electronic devices, improving ease of use. When the electronic device needs charging, it can be placed on the support unit, at which point the wireless charger will activate and begin charging.
[0012] Furthermore, the support portion is provided with a plurality of second ribs extending along its length direction, and an air guide groove is formed between two adjacent second ribs, and the air guide groove is connected to the through hole in a one-to-one correspondence.
[0013] In the above technical solution, the design of the second rib and the air guide groove is mainly to enhance the heat dissipation effect. When the fan module is started, cool air flows along the air guide groove, forming an effective heat dissipation channel to ensure that the heat from various parts of the electronic equipment is effectively carried away, and then flows to the through hole to improve the heat dissipation efficiency.
[0014] Furthermore, the end of the air guide groove near the through hole is inclined toward the through hole, forming a guide slope.
[0015] In the above technical solution, the guide slope plays a guiding role, so that the cold air can enter the shell more efficiently after absorbing heat, and then flow out from the air outlet.
[0016] Furthermore, the housing is provided with a mounting cavity, and the charging module is disposed within the mounting cavity.
[0017] In the above technical solution, the installation cavity effectively protects the charging module from external impacts and interference.
[0018] Furthermore, the charging module also includes a charging coil, which is electrically connected to the circuit board.
[0019] In the above technical solution, the charging coil is one of the core components of the wireless charger. It achieves wireless power transmission through inductive coupling with the wireless charging receiver of the electronic device. The circuit board is responsible for controlling the working state of the charging coil to ensure the stability and safety of the charging process.
[0020] Compared with existing technologies, the beneficial effects of this invention are: at least a portion of the air outlet faces the air inlet, and there are gaps between the fan blades of the fan module that allow foreign objects to pass through. When foreign objects accidentally enter the housing through the air inlet, they will fall naturally under the influence of gravity. As the foreign objects move, they will be discharged from the housing through these gaps in a timely manner, thus avoiding the risk of foreign objects accumulating inside the housing or causing air duct blockage. The rotation of the fan blades not only helps with heat dissipation but also blows away and discharges foreign objects (such as tiny dust particles or debris) remaining in the air duct from the housing, further enhancing the cleanliness and reliability of the equipment. Attached Figure Description
[0021] Figure 1 This is a cross-sectional schematic diagram of a wireless charger according to an embodiment of the present invention.
[0022] Figure 2 This is a cross-sectional schematic diagram of another structure of the wireless charger according to an embodiment of the present invention.
[0023] Figure 3 This is a perspective view of the wireless charger according to an embodiment of the present utility model.
[0024] Explanation of icon numbers
[0025] 1. Housing; 101. Air duct; 1011. Air inlet; 1012. Air outlet; 102. Support; 1021. Second rib; 1022. Air guide groove; 1023. Guide slope; 103. Mounting cavity;
[0026] 2. Fan module; 201. Fan blade; 202. Clearance;
[0027] 3. Charging module; 301. Circuit board; 302. Charging coil;
[0028] 4. First rib. Detailed Implementation
[0029] The wireless charger of this utility model will now be described in further detail with reference to specific embodiments and accompanying drawings. The accompanying drawings show preferred embodiments of this utility model. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein.
[0030] Please refer to Figure 1 and Figure 2 In a preferred embodiment, the wireless charger of the present invention includes a housing 1, a fan module 2, and a charging module 3 installed in the housing 1. An air duct 101 is formed inside the housing 1. An air inlet 1011 and an air outlet 1012 are respectively provided at both ends of the air duct 101. At least a portion of the air outlet 1012 is opposite to the air inlet 1011. The fan module 2 is disposed inside the housing 1 and located above the air outlet 1012. The fan module 2 has a plurality of fan blades 201. A gap 202 is formed between two adjacent fan blades 201 to allow foreign objects to pass through. The charging module 3 includes a circuit board 301. The circuit board 301 can switch the fan module 2 to a working state or a stationary state. When the fan module 2 is in a stationary state, at least one gap 202 is opposite to the air inlet 1011.
[0031] In practical applications, when the fan module 2 is stationary, if a foreign object accidentally enters the housing 1 through the air inlet 1011, it will fall naturally under gravity due to the fact that at least part of the air outlet 1012 is opposite to the air inlet 1011, and there are gaps 202 between the fan blades 201 of the fan module 2 that allow the foreign object to pass through. As the foreign object moves, it will be discharged from the housing 1 through the air outlet 1012 in a timely manner, thus avoiding the risk of foreign objects accumulating inside the housing 1 or causing blockage of the air duct 101. When an electronic device is placed on the housing 1, the fan module is in operation, and the fan blades 201 rotate to bring outside air to the electronic device, thereby removing the heat from the electronic device. Subsequently, the hot air enters the air duct 101 from the air inlet 1011 and is finally guided to the air outlet 1012, and finally discharged from the housing 1. This process achieves the purpose of heat dissipation by removing the heat from the electronic device. During the operation of the fan module, the rotation of the fan blades 201 not only helps to dissipate heat, but also blows away and discharges foreign objects (such as tiny dust particles or debris) left in the air duct 101 from the housing 1, further enhancing the cleanliness and reliability of the equipment.
[0032] In other words, part of the air outlet 1012 is positioned opposite the air inlet 1011. The fan module 2 is located above the air outlet 1012, and there is a gap 202 between adjacent fan blades 201 on the fan module 2, allowing foreign objects to pass through. When the fan module 2 is stationary, at least one gap 202 is opposite to the air inlet 1011, meaning that the air inlet 1011 is in communication with the air duct 101, the gap 202, and part of the air outlet 1012. When a foreign object enters the housing 1 from the air inlet 1011, it first enters the air duct 101. Under the influence of gravity, the foreign object passes through the gap 202 and is finally discharged from the air outlet 1012. The fan module 2 uses an axial flow fan. If any foreign object remains in the air duct 101, the rotating fan blades 201 will blow the foreign object through the air outlet 1012 and discharge it from the housing 1.
[0033] Please refer to this again. Figure 1 In some embodiments of this invention, the fan blade 201 is formed with an inclined structure facing the air outlet 1012. This inclined design not only helps to increase the airflow intensity generated when the fan blade 201 rotates and improves heat dissipation efficiency, but also guides foreign objects to slide down the inclined surface of the fan blade 201 to the air outlet 1012 to a certain extent, reducing the residence time of foreign objects between the fan blades 201 and reducing the risk of blockage. Specifically, when the fan module is stationary, if a foreign object accidentally enters the air duct 101, the inclined fan blade 201 structure can serve as a guiding surface, helping the foreign object slide down the inclined surface of the fan blade 201 to the air outlet under the action of gravity, reducing the risk of foreign objects remaining and blocking in the air duct 101.
[0034] Please refer to Figure 3 The air inlet 1011 is provided with several first ribs 4, which divide the air inlet 1011 into several grid-like through holes. The arrangement of the first ribs 4 can effectively prevent larger foreign objects from entering the charger. That is, the grid-like through holes prevent foreign objects from entering the housing 1 at the source, protecting the safety of the fan module 2, extending the service life of the wireless charger, and reducing failures and maintenance costs caused by foreign objects entering. At the same time, the grid-like through holes allow air to pass through smoothly, ensuring heat dissipation. This design improves the ability to prevent foreign objects from entering while also ensuring good airflow.
[0035] Furthermore, a support portion 102 for supporting electronic devices is formed on the side of the housing 1 near the air inlet 1011. The support portion 102 enables the wireless charger to provide support for electronic devices, improving ease of use. When charging, users do not need to find additional support; they can directly place the electronic device on the support portion 102 to enjoy a convenient wireless charging experience. Positioning the support portion 102 near the air inlet 1011 helps cool air, after absorbing heat, enter the air duct 101 from the air inlet 1011 and finally exit the housing 1 through the air outlet 1012.
[0036] In some embodiments of this utility model, the support portion 102 is provided with a plurality of second ribs 1021 extending along its length direction, and an air guide groove 1022 is formed between two adjacent second ribs 1021. The air guide groove 1022 is connected to the through hole in a one-to-one correspondence. Specifically, the second rib 1021 is a protrusion along the height direction of the support portion 102. The second rib 1021 extends from the end away from the air inlet 1011 to the end closer to the air inlet 1011 and connects with the first rib 4, so that the air guide groove 1022 is connected to the through hole in a one-to-one correspondence. The design of the second ribs 1021 and the air guide groove 1022 is mainly to enhance the heat dissipation effect. When the fan module 2 is started, cold air flows along the air guide groove 1022, forming an effective heat dissipation channel, flowing to various parts of the electronic device, ensuring that the heat of various parts of the electronic device is effectively removed, and then flows to the through hole, improving the heat dissipation efficiency. The second rib 1021 not only optimizes air circulation but also acts as an anti-slip element, ensuring that the electronic device is placed stably on the support 102 and preventing the electronic device from slipping or shaking during charging.
[0037] Please refer to this again. Figure 3 The end of the air guide slot 1022 closest to the through hole is inclined towards the through hole, forming a guide slope 1023. The guide slope 1023 acts as a guide, allowing cold air to enter the housing more efficiently after absorbing heat, and then flow out from the air outlet 1012. In other words, the design of the guide slope 1023 reduces the resistance of air flowing into the air duct 101. Compared to vertical or horizontal surfaces, slopes are more effective at guiding airflow smoothly.
[0038] Furthermore, the housing 1 is provided with a mounting cavity 103, and the charging module 3 is disposed within the mounting cavity 103. The mounting cavity 103 effectively protects the charging module 3 from external impacts and interference.
[0039] Furthermore, the charging module 3 also includes a charging coil 302, which is electrically connected to the circuit board 301. The charging coil 302 is one of the core components of the wireless charger; it achieves wireless power transmission through inductive coupling with the wireless charging receiver of the electronic device. The circuit board 301 is responsible for controlling the operating state of the charging coil to ensure the stability and safety of the charging process.
[0040] In the description of this utility model, it should be understood that terms such as "upper", "lower", "front", "back", "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.
[0041] 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.
[0042] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0043] Although the description of this utility model has been given in conjunction with the specific embodiments described above, it is obvious to those skilled in the art that many substitutions, modifications, and variations can be made based on the above description. Therefore, all such substitutions, modifications, and variations are included within the spirit and scope of the appended claims.
Claims
1. A wireless charger, characterized in that, The device includes a housing, a fan module, and a charging module installed within the housing. An air duct is formed within the housing, with an air inlet and an air outlet at each end. At least a portion of the air outlet faces the air inlet. The fan module is located within the housing and above the air outlet. The fan module has several fan blades, with a gap between adjacent blades allowing foreign objects to pass through. The charging module includes a circuit board that allows the fan module to switch between a working state and a stationary state. When the fan module is stationary, at least one of the gaps faces the air inlet.
2. The wireless charger according to claim 1, characterized in that, The fan blades are formed with a structure that is inclined toward the air outlet.
3. The wireless charger according to claim 1, characterized in that, The air inlet is provided with a number of first ribs, which divide the air inlet into a number of grid-like through holes.
4. The wireless charger according to claim 3, characterized in that, The side of the housing near the air inlet is formed as a support for supporting electronic equipment.
5. The wireless charger according to claim 4, characterized in that, The support portion is provided with a plurality of second ribs extending along its length direction, and an air guide groove is formed between two adjacent second ribs. The air guide grooves are connected to the through holes one by one.
6. The wireless charger according to claim 5, characterized in that, The end of the air guide groove near the through hole is inclined toward the through hole, forming a guide slope.
7. The wireless charger according to claim 1, characterized in that, The housing has a mounting cavity, and the charging module is located inside the mounting cavity.
8. The wireless charger according to claim 7, characterized in that, The charging module also includes a charging coil, which is electrically connected to the circuit board.