Wireless power supply magnetic adsorption fan

Abstract

The present invention provides a wirelessly powered magnetic fan that engages with a wireless charging base via magnetic attraction and is capable of receiving power through the wireless charging base. [Solution] The wirelessly powered magnetic fan includes a fan body 10, the fan body is equipped with a motor in the axial direction, a first rotating shaft seat 20 is fixed to the rear of the fan body, and a support frame 30 is rotatably connected to the first rotating shaft seat with damping engagement. The support frame rotates around the first rotating shaft seat and unfolds to support the fan body in an upright position, and the support frame closes around the first rotating shaft seat and is stored at the rear end of the fan body. The damping engagement of the first rotating shaft seat and the rotatable and retractable support frame provide stable support for the fan body and give the fan the function of flexibly adjusting the airflow angle, meeting the diverse airflow needs of the user.

Description

Technical Field

[0001] The present invention relates to the technical field of fans, and particularly to a wireless power supply type magnetic adsorption fan.

Background Art

[0002] As wireless charging technology becomes increasingly mature and popular, wireless power supply devices have been liberated from the constraints of cables and are widely used in various small electrical products due to their convenient features. As a cooling device commonly used in daily households and in-vehicle scenarios, fans are gradually moving towards wireless power supply.

[0003] In the prior art, a wireless charging and power supply fan device as disclosed in the invention patent application publication number CN116378983A has been proposed. By integrating a wireless power receiving coil, a circuit board, a suitable electrical energy conversion circuit, and a circuit driving module inside the base of the fan, there is no need to insert an additional cable during use, and the fan body can be directly placed on the wireless charging base of a mobile phone or at the wireless charging position inside a vehicle to achieve power-on operation, greatly improving the convenience of use. In addition, a magnetic adsorbent is provided on the bottom surface of the base, and the fan body is fixed by utilizing the adsorption force between the magnetic adsorbent and a suitable wireless charging base, effectively avoiding the problems of the fan body falling or poor contact of wireless power supply. The overall structure is simple and reasonable, meeting the usage needs in some scenarios.

[0004] However, the conventional wireless magnetic suction fans and similar products described above still have clear limitations in practical applications. On the one hand, their magnetic suction fixing method is unidirectional; it can only magnetically attach the fan body to a pre-fixed wireless charging base and cannot meet the need for fixing in the reverse direction. That is, it is not possible to first fix the fan itself to the target position and then magnetically attach the wireless charging base to the fan, limiting the fan's suitability for different installation scenarios. On the other hand, conventional fans, once attached to a wireless charging base, usually have a fixed and unchangeable airflow angle, making it impossible to flexibly adjust it according to the user's needs, resulting in a poor user experience and difficulty in adapting to diverse airflow scenarios.

[0005] Therefore, it is necessary to propose a new technical solution to the problems of conventional wireless magnetic suction fans, namely the lack of reverse suction capability and the inability to adjust the angle. [Overview of the project] [Problems that the invention aims to solve]

[0006] This invention aims to provide a technical means to solve the above-mentioned problems in order to overcome the shortcomings of the above-mentioned situation. [Means for solving the problem]

[0007] A wirelessly powered magnetic fan, which is magnetically attached to a wireless charging base and can be powered via the wireless charging base, includes a fan body, the fan body is provided with a motor in the axial direction, a first rotating shaft seat is fixed to the rear of the fan body, a support frame is dampingly engaged with and rotatably connected to the first rotating shaft seat, the support frame rotates and unfolds around the first rotating shaft seat to support the fan body in an upright position, and the support frame closes around the first rotating shaft seat and is stored at the rear end of the fan body. A magnetic adsorption charging module is provided at the rear end of the fan body or the support frame, and the magnetic adsorption charging module includes a flat case, a wireless charging coil mounted inside the flat case, and a magnetic adsorption ring mounted inside the flat case, and the wireless charging coil is electrically connected to the motor via a conductor, The flattened case has a flat surface, and both the wireless charging coil and the magnetic adsorption ring contact the flat surface. The flat surface is configured to contact the wireless charging base whether the support frame is in a retracted or unfolded state.

[0008] Preferably, a control circuit is provided inside the flat case. The wireless charging coil is connected to the motor by a wire via the control circuit. A button electrically connected to the control circuit is provided on the surface of the flat case. The control circuit starts or stops the power supply from the wireless charging coil to the motor, or, by the button, The control circuit further adjusts the level using the button.

[0009] Preferably, the flattened case is further provided with a power interface electrically connected to the control circuit.

[0010] Preferably, the support frame has a swing arm portion, The first rotating shaft seat has two first shaft connecting plates, The swing arm portion is rotatably connected between the two first shaft connecting plates.

[0011] Preferably, the magnetic adsorption charging module is provided at the rear end of the fan body, The flattened case is fixed to the rear end of the fan body, The first rotating shaft seat and the flat case are integrally molded, The flattened case is provided with a protruding base. The aforementioned flat portion is the end face of the convex base, The support frame has an annular body formed on the swing arm portion, In the retracted state of the support frame, the annular body is fitted onto the periphery of the protruding base.

[0012] Preferably, the magnetic adsorption charging module is provided on the support frame, A second pivot seat is provided on the side of the flattened case. The movable end of the swing arm and the second pivot seat are rotatably connected. The second pivot seat and the swing arm portion are in a rotatable connection relationship that engages dampingly.

[0013] Preferably, in the stored state, the swing arm portion, the first rotating shaft seat, and the magnetic adsorption charging module are engaged in a three-layer stacked configuration, with the flat portion located at the rearmost end.

[0014] Preferably, the flattened case has a housing groove that fits the swing arm portion. In the stored state, the swing arm portion is housed within the storage groove.

[0015] Preferably, the first rotating shaft seat, the swing arm portion, and the second rotating shaft seat are all provided as hollow structures. The first rotating shaft seat, the swing arm portion, and the second rotating shaft seat are connected by forming a wiring passage that communicates with each other at the rotational connection position, thereby connecting the wireless charging coil to the motor by a wire along the wiring passage.

[0016] Compared to conventional technology, this invention has the following beneficial effects.

[0017] The damped engagement of the first rotating shaft seat and the rotatable, retractable support frame ensure stable support for the fan body and provide the fan with the ability to flexibly adjust the airflow angle, solving the problem of fixed angles in conventional products and meeting the diverse airflow needs of users. Furthermore, the retractable design of the support frame significantly improves the product's portability, making it convenient for daily storage, carrying, and use in vehicles. The magnetic adsorption charging module integrates a wireless charging coil and a magnetic adsorption ring. Moreover, the flat surface can contact the wireless charging base in both the retracted and deployed states. Magnetic adsorption ensures the stability of wireless power supply, avoiding contact failures and accommodating power supply needs in different usage conditions, further improving ease of use. The magnetic adsorption charging module can also be flexibly installed on the rear end of the fan body or the support frame, and when combined with the rotatable support frame, it indirectly expands the magnetic adsorption connection method and application scenarios with the wireless charging base. Even without a wireless charging base, wired power supply is possible via the power interface. This breaks the limitation of conventional products, which can only achieve unidirectional adsorption, while maintaining the core advantages of wireless power transfer and magnetic attachment. It is suitable for a wider range of mounting and usage scenarios, has a simple and rational overall structure, and provides a better user experience.

[0018] Further aspects and advantages of the present invention are, in part, given in the following description, in part, revealed in the following description, or understood through the implementation of the present invention. [Brief explanation of the drawing]

[0019] To more clearly describe embodiments of the present invention or technical solutions in the prior art, the accompanying drawings used in the description of embodiments or the prior art will be briefly described below. It is clear that the accompanying drawings in the following description represent only a few embodiments of the present invention, and those skilled in the art can obtain other accompanying drawings based on these without any creative work. [Figure 1]This is a schematic structural diagram in the storage state of one embodiment of the present invention. [Figure 2] This is a schematic structural diagram in the deployed state of one embodiment of the present invention. [Figure 3] This is a schematic structural diagram in the disassembled state of one embodiment of the present invention. [Figure 4] This is a schematic structural diagram in the storage state of another embodiment of the present invention. [Figure 5] This is a schematic structural diagram in the deployed state of another embodiment of the present invention. [Figure 6] This is a schematic structural diagram in the disassembled state of another embodiment of the present invention. [Figure 7] This is a block diagram of the circuit connection module of the present invention.

Embodiments for Carrying out the Invention

[0020] Hereinafter, the technical solutions in the embodiments of the present invention will be clearly and completely described. It is obvious that the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative labor belong to the scope protected by the present invention.

[0021] Referring to Figures 1 to 7, in an embodiment of the present invention, a wireless power supply type magnetic adsorption fan that is magnetically attached to a wireless charging base and can be powered via the wireless charging base includes a fan body 10, the fan body 10 is provided with a motor 11 in the axial direction, a first rotating shaft seat 20 is fixed to the rear of the fan body 10, a support frame 30 is dampingly engaged with the first rotating shaft seat 20 and rotatably connected, the support frame 30 rotates around the first rotating shaft seat 20 and then expands to support the fan body 10 in an upright position, and the support frame 30 closes around the first rotating shaft seat 20 and then is stored at the rear end of the fan body 10 A magnetic adsorption charging module 40 is provided at the rear end of the fan body 10 or on the support frame 30. The magnetic adsorption charging module 40 includes a flat case 41, a wireless charging coil 42 mounted inside the flat case 41, and a magnetic adsorption ring 43 mounted inside the flat case 41. The wireless charging coil 42 is electrically connected to the motor 11 via a conductor. A flat surface 44 is formed in the flat case 41, and both the wireless charging coil 42 and the magnetic adsorption ring 43 contact the flat surface 44. The flat surface 44 is configured to contact the wireless charging base whether the support frame 30 is in a retracted or unfolded state.

[0022] The core operating logic of this wirelessly powered magnetic fan revolves around the coordinated realization of support adjustment, magnetic fixation, and wireless power supply. The first pivot seat 20 at the rear of the fan body 10 and the support frame 30 are dampedly engaged and rotatably connected. Depending on the user's needs, the support frame 30 may be rotated around the first pivot seat 20 to extend and stably support the fan body 10 in an upright position, or the support frame 30 may be rotated to be stored at the rear end of the fan body 10 to close it. This allows for flexible switching between storage and support. The magnetic charging module 40 integrates a wireless charging coil 42 and a magnetic adsorption ring 43 within a flat case 41. The wireless charging coil 42 is electrically connected via a wire to the motor 11 that drives the fan, and a flat surface 44 formed on the flat case 41 provides a unified contact reference for the wireless charging coil 42 and the magnetic adsorption ring 43. Whether the support frame 30 is in a retracted or deployed state, the flat surface 44 adheres precisely to the wireless charging base, and the magnetic attraction between the magnetic adsorption ring 43 and the wireless charging base ensures stable adsorption and positioning of both. The wireless charging base transmits electrical energy to the wireless charging coil 42 using the principle of electromagnetic induction, and this electrical energy is sent directly to the motor 11 via a conductor, driving the fan to operate and generate airflow. Meanwhile, the damped rotational structure allows the user to adjust the fan angle and then maintain its current position to ensure a stable airflow direction.

[0023] Therefore, in the above technical solution, the damped engagement of the first rotating shaft seat 20 and the rotatable and retractable support frame 30 ensures stable support of the fan body 10 and provides the fan with the function of flexibly adjusting the airflow angle, solving the problem of fixed angles in conventional products and meeting the diverse airflow needs of users. Furthermore, the retractable design of the support frame 30 greatly improves the portability of the product, making it convenient for daily storage, carrying, and use in situations such as in vehicles. In addition, the magnetic adsorption charging module 40 integrates the wireless charging coil 42 and the magnetic adsorption ring 43. Moreover, the flat surface 44 can contact the wireless charging base in both the retracted and deployed states. Magnetic adsorption ensures the stability of wireless power supply and avoids contact failures, and can accommodate power supply needs in different usage conditions, further improving ease of use.

[0024] Furthermore, the magnetic adsorption charging module 40 can be flexibly installed on the rear end of the fan body 10 or on the support frame 30, and by combining it with the rotatable support frame 30, it indirectly expands the magnetic adsorption connection method and application scenes with the wireless charging base. Specifically, when the wireless charging base is provided as a stand, according to this technical solution, the structure in its stored state can be directly magnetically attached to the wireless charging base, or the magnetic adsorption charging module 40 can be installed on the support frame 30 and magnetically attached to the wireless charging base, and then the fan body 10 can be rotated to allow angle adjustment even when the fan body 10 is installed on the wireless charging base. On the other hand, when the wireless charging base is a small structure that magnetically attaches directly to an electronic product, according to this technical solution, based on a structure in which the magnetic adsorption charging module 40 is installed at the rear of the fan body 10, that is, after unfolding the support frame 30 and standing the fan body 10 upright, this small wireless charging base can be directly adsorbed to the rear end of the fan body 10. This breaks the limitation of conventional products, which can only achieve unidirectional adsorption, while maintaining the core advantages of wireless power transfer and magnetic attachment. It is suitable for a wider range of mounting and usage scenarios, has a simple and rational overall structure, and provides a better user experience.

[0025] Referring to Figures 1-7, in addition to the above technical solutions, the following is further proposed: A control circuit 45 is provided inside the flat case 41, and the wireless charging coil 42 is connected to the motor 11 by a wire via the control circuit 45. A button 46 electrically connected to the control circuit 45 is provided on the surface of the flat case 41, and the control circuit 45 starts or stops the power supply from the wireless charging coil 42 to the motor 11 via the button 46, or the control circuit 45 further adjusts the steps via the button 46. This makes it possible to independently control the operating state of the fan without relying on the start / stop operation of the wireless charging base, improving operability. By adding the control circuit 45, the power transmission method between the wireless charging coil 42 and the motor 11 is optimized, the supplied power can be effectively adjusted, the stability and reliability of the motor 11's operation can be ensured, and energy loss can be reduced. Furthermore, the flat case 41 is also provided with a power interface 47 electrically connected to the control circuit 45, so the fan can be powered not only by wireless charging via a wireless charging base but also by wired power supply via an external power source, thus diversifying the power supply method.

[0026] Referring to Figures 1-6, in addition to the above technical solutions, the following is further proposed: The support frame 30 has a swing arm portion 31, and the first rotating shaft seat 20 has two first shaft connecting plates 21. The swing arm portion 31 is rotatably connected between the two first shaft connecting plates 21, forming a symmetrical and stable rotating support structure. This significantly improves the stability and load-bearing capacity of the connection between the support frame 30 and the first rotating shaft seat 20, suppressing shaking and tipping when the fan body 10 is deployed and supported, and ensuring structural reliability during use. On the other hand, by designing the swing arm portion 31 to be rotatably connected by being sandwiched between two symmetrical plates, that is, by the two first shaft connecting plates 21 dampeningly sandwiching and engaging the swing arm portion 31, snagging is avoided, making the rotation of the swing arm portion 31 smoother and more stable. Furthermore, it prevents angular displacement of the fan body 10 due to slight contact by external forces during use, further improving positioning stability after angle adjustment. Furthermore, this structural design is simple and compact, and does not affect the storage effect of the swing arm section 31, which is stored at the rear end of the fan body 10 after rotating around the first rotation axis seat 20 and closing. This improves structural stability while simultaneously achieving both portability and flexibility of use for the product.

[0027] Referring to Figures 1-3, in one structural design, the magnetic adsorption charging module 40 is provided at the rear end of the fan body 10. Here, the flat case 41 is fixed to the rear end of the fan body 10, the first rotating shaft seat 20 and the flat case 41 are integrally molded, the flat case 41 is provided with a protruding base 411, the flat portion 44 is the end face of the protruding base 411, the support frame 30 has an annular body 32 molded into a swing arm portion 31, in the storage state of the support frame 30 the annular body 32 is fitted around the protruding base 411, the end face of the protruding base 411 of the flat case 41 is the flat portion 44 that comes into contact with it during magnetic adsorption, and in combination with the annular body 32 of the swing arm portion 31 of the support frame 30 the support frame 30 can be fitted around the protruding base 411 in the storage state, realizing compact, close-fitting storage of the support frame 30 and the magnetic adsorption charging module 40. This design avoids the inconvenience of carrying the product due to protruding parts after storage, and the annular body 32 protects the convex base 411 and the internal wireless charging coil 42 and magnetic adsorption ring 43, reducing damage to the magnetic adsorption charging module 40 from external impacts, thereby further optimizing the product's portability and durability.

[0028] Referring to Figures 4-6, in an alternative structural design, the magnetic adsorption charging module 40 is mounted on the support frame 30, and a second rotating shaft seat 412 is provided on the side of the flat case 41. The movable end of the swing arm 31 and the second rotating shaft seat 412 are rotatably connected, and the second rotating shaft seat 412 and the swing arm 31 are in a rotatably connected relationship with damping engagement. According to this structural design, the magnetic adsorption charging module 40 is mounted on the support frame 30, and the rotatably engaged second rotating shaft seat 412 realizes a rotatable connection between the swing arm 31 and the flat case 41. Combined with the rotation function of the first rotating shaft seat 20, this gives the fan a double degree of angle adjustment freedom, allowing it to more accurately adapt to the demands of different airflow directions. In the stored state, the swing arm 31, the first rotating shaft seat 20, and the magnetic adsorption charging module 40 are engaged in a three-layer stacked configuration, with the flat section 44 located at the rearmost end. The flattened case 41 is further formed with a housing groove 413 that fits the swing arm portion 31. When stored, the swing arm portion 31 is housed within the housing groove 413, compressing the product's storage volume and improving portability. The first rotating shaft seat 20, the swing arm portion 31, and the second rotating shaft seat 412 are all provided as hollow structures. By forming a connecting wiring passage 50 at the rotatable connection position of the first rotating shaft seat 20, the swing arm portion 31, and the second rotating shaft seat 412, the wireless charging coil 42 is connected to the motor 11 by a wire along the wiring passage 50. This avoids wear and entanglement problems caused by exposed wires, ensuring the stability and safety of electrical energy transmission, while also making the overall structure simpler and more regular. Combined with a damped rotatable connection relationship, it achieves both flexibility in use and structural reliability, further expanding the product's application scenarios.

[0029] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be realized in other specific forms without contradicting the spirit or basic features of the present invention. Therefore, in all respects, the embodiments should be considered illustrative and non-limiting, and the scope of the present invention is limited not by the above description but by the appended claims; thus, all variations that fall within the meaning and scope of the equivalents requirement of the claims are intended to be included within the present invention. [Explanation of Symbols]

[0030] 10. Fan body 11 Motor 20 First rotational axis 21. First Axis Connection Plate 30 Support Frame 31 Swingarm section 32 Ring-shaped bodies 40 Magnetic Adsorption Charging Modules 41 Flat Case 411 Convex stand 412 Second Rotating Axle 413 Storage groove 42 Wireless Charging Coils 43 Magnetic adsorption ring 44 Plane section 45 Control circuits 46 buttons 47 Power Interface 50 Wiring passage

Claims

1. A wireless power supply type magnetic fan that is engaged with a wireless charging base by magnetic attraction and is capable of receiving power via the wireless charging base, The fan body (10) is provided with a motor (11) in the axial direction, a first rotating shaft seat (20) is fixed to the rear of the fan body (10), and a support frame (30) is dampingly engaged with and rotatably connected to the first rotating shaft seat (20). The support frame (30) rotates and unfolds around the first pivot seat (20) to support the fan body (10) in an upright position, and the support frame (30) closes around the first pivot seat 20 and is stored at the rear end of the fan body (10). A magnetic adsorption charging module (40) is provided at the rear end of the fan body (10) or on the support frame (30), and the magnetic adsorption charging module (40) includes a flat case (41), a wireless charging coil (42) mounted inside the flat case (41), and a magnetic adsorption ring (43) mounted inside the flat case (41), and the wireless charging coil (42) is electrically connected to the motor (11) via a conductor. The flat case (41) has a flat portion (44) formed thereon, and both the wireless charging coil (42) and the magnetic adsorption ring (43) abut against the flat portion (44), and the flat portion (44) is configured to abut against the wireless charging base whether the support frame (30) is in a stored state or an unfolded state. Wireless power supply type magnetic suction fan.

2. A control circuit (45) is provided inside the flat case (41). The wireless charging coil (42) is connected to the motor (11) by a wire via the control circuit (45). A button (46) electrically connected to the control circuit (45) is provided on the surface of the flat case (41). The control circuit (45) starts or stops the power supply from the wireless charging coil (42) to the motor (11) by the button (46), The control circuit (45) further adjusts the steps using the button (46). The wireless power supply type magnetic adsorption fan according to claim 1.

3. The flat case (41) is further provided with a power interface (47) electrically connected to the control circuit (45). The wireless power supply type magnetic adsorption fan according to claim 2.

4. The support frame (30) has a swing arm portion (31), The first rotating shaft seat (20) has two first shaft connecting plates (21), The swing arm portion (31) is rotatably connected between the two first shaft connecting plates (21). The wireless power supply type magnetic adsorption fan according to claim 1.

5. The magnetic adsorption charging module (40) is provided at the rear end of the fan body (10), The flat case (41) is fixed to the rear end of the fan body (10), The first rotating shaft seat (20) and the flat case (41) are integrally molded. The flattened case (41) is provided with a protruding base (411), The flat portion (44) is the end face of the convex base (411), The support frame (30) has an annular body (32) formed on the swing arm portion (31), In the retracted state of the support frame (30), the annular body (32) is fitted around the convex base (411). The wireless power supply type magnetic adsorption fan according to claim 4.

6. The magnetic adsorption charging module (40) is provided on the support frame (30), A second rotating shaft seat (412) is provided on the side of the flattened case (41). The movable end of the swing arm portion (31) and the second pivot seat (412) are rotatably connected. The second pivot seat (412) and the swing arm portion (31) are in a rotatable connection relationship that engages dampingly. The wireless power supply type magnetic adsorption fan according to claim 4.

7. In the stored state, the swing arm portion (31), the first rotational shaft seat (20), and the magnetic adsorption charging module (40) are engaged in a three-layer stacked configuration, and the flat portion (44) is located at the rearmost end. The wireless power supply type magnetic adsorption fan according to claim 6.

8. The flattened case (41) has a housing groove (413) that fits the swing arm portion (31), In the stored state, the swing arm portion (31) is housed within the housing groove (413). The wireless power supply type magnetic adsorption fan according to claim 7.

9. The first rotating shaft seat (20), the swing arm portion (31), and the second rotating shaft seat (412) are all provided as hollow structures. The first rotating shaft seat (20), the swing arm portion (31), and the second rotating shaft seat (412) are connected by a wiring passage (50) formed at the rotational connection position, thereby connecting the wireless charging coil (42) to the motor (11) by a wire along the wiring passage (50). A wirelessly powered magnetic fan according to any one of claims 6 to 8.

Images