Magnetic fan

Abstract

The application belongs to the field of fans and relates to a magnetic fan, which comprises a fan body, the fan body comprising a shell, a motor, a battery and a magnetic piece, the motor, the battery and the magnetic piece being sequentially arranged in the shell, and the magnetic piece being arranged in the radial direction of the motor and spaced from the outer periphery of the motor. In the application, the magnetic piece does not interfere with the original magnetic field distribution of the motor, so that the problem of motor speed drop caused by the interference of the magnetic piece with the original magnetic field distribution of the motor can be avoided.

Description

Technical Field

[0001] This application relates to the field of fan technology, and more specifically, to a magnetic fan. Background Technology

[0002] With the iterative updates of portable fans, portable fans that include a fan body and a hanging bracket have appeared on the market. First, the hanging bracket is hung around the user's neck via a lanyard, and then the fan body is magnetically attached to the hanging bracket and placed in front of the user's chest, with the fan body blowing air upwards towards the user.

[0003] Generally, the fan body usually includes a motor and a magnetic component. The motor provides the power for operation, and the magnetic component is used to achieve a magnetic connection between the fan body and the suspension bracket. However, the magnetic component is usually placed close to the motor, which causes the magnetic component to interfere with the original magnetic field distribution of the motor, resulting in a decrease in motor speed. Therefore, it is necessary to improve this. Utility Model Content

[0004] Therefore, it is necessary to provide a magnetic fan to address the above problems, which aims to avoid the problem of motor speed reduction caused by the magnetic components interfering with the original magnetic field distribution of the motor.

[0005] The embodiments of this application achieve the above objectives through the following technical solutions.

[0006] This application provides a magnetic fan, which includes a fan body, a housing, a motor, a battery, and a magnetic component. The motor, the battery, and the magnetic component are sequentially arranged inside the housing, and the magnetic component is spaced apart from the outer periphery of the motor in the radial direction of the motor.

[0007] In one embodiment, the motor, the battery, and the magnetic component are arranged sequentially within the housing along the thickness direction of the housing.

[0008] In one embodiment, the housing includes a middle frame, and a partition plate is provided in the middle frame to separate a drive compartment and a battery compartment that are spaced apart along the thickness direction of the middle frame. The drive compartment includes a power compartment and a motherboard compartment arranged in parallel. The motor is located in the power compartment, the main control board of the fan body is located in the motherboard compartment, and the battery is located in the battery compartment.

[0009] In one embodiment, the motor is spaced apart from the power compartment wall near the battery compartment.

[0010] In one embodiment, the partition plate is further provided with a mounting bracket located within the power compartment, and the motor is mounted on the mounting bracket.

[0011] In one embodiment, both the drive compartment and the battery compartment are open on the opposite sides;

[0012] The housing also includes a front cover and a rear cover. The front cover covers the open end of the drive compartment and has an air inlet. The rear cover covers the open end of the battery compartment. The magnetic component is located on the rear cover.

[0013] In one embodiment, the projections of the battery compartment and the drive compartment in the thickness direction of the middle frame coincide, and the outer periphery of the battery is disposed adjacent to the inner periphery of the battery compartment.

[0014] In one embodiment, the portion of the middle frame located between the drive compartment and the battery compartment is formed as a spiral-shaped air guide plate, and the outer periphery of the middle frame is provided with an air outlet communicating with the power compartment, the air outlet being arranged opposite to the air guide plate.

[0015] In one embodiment, the distance between the magnetic element and the motor axis in the radial direction is ≥10mm.

[0016] In one embodiment, the magnetic fan further includes a suspension bracket, and the fan body is magnetically connected to the suspension bracket.

[0017] Compared with the prior art, the embodiments of this application have the following advantages: In this application, the motor, battery and magnetic components are arranged sequentially in the housing along the axial direction of the motor and the magnetic components are spaced apart from the outer periphery of the motor in the radial direction. This makes the magnetic components and the motor spaced apart both in the axial direction and in the radial direction of the motor. This ensures that the magnetic components do not interfere with the original magnetic field distribution of the motor, thereby avoiding the problem of motor speed reduction caused by the magnetic components interfering with the original magnetic field distribution of the motor. Attached Figure Description

[0018] To more clearly illustrate the solutions in this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a cross-sectional view of the fan body in one embodiment of this application;

[0020] Figure 2 This is a schematic diagram to show the structure of the magnetic components spaced apart from the outer periphery of the motor in the radial direction;

[0021] Figure 3This is an exploded structural diagram of the fan body excluding the front cover in one embodiment of this application;

[0022] Figure 4 yes Figure 3 Another structural schematic diagram of the centrifugal fan impeller;

[0023] Figure 5 yes Figure 5 Another structural diagram of the middle frame;

[0024] Figure 6 This is a front view of the fan body after the front cover has been removed in one embodiment of this application;

[0025] Figure 7 This is a perspective view of a magnetic fan in one embodiment of this application.

[0026] Figure label:

[0027] 1000, Magnetic Fan;

[0028] 100. Fan body;

[0029] 10. Shell;

[0030] 11. Mid-frame; 11a. Drive compartment; 111a. Power compartment; 112a. Mainboard compartment; 11b. Battery compartment; 11c. Air outlet; 11d. First cable entry port; 11e. Second cable entry port; 11f. Cable routing channel; 111. Divider plate; 112. Air guide grille; 113. Mounting bracket; 114. Air guide plate; 115. Volute; 1151. First airflow section; 1152. Second airflow section;

[0031] 12. Front cover; 12a. Air inlet; 12b. Air inlet gap; 121. Baffle;

[0032] 13. Back cover; 131. Limiting ring;

[0033] 20. Motor; 21. Stator; 22. Rotor;

[0034] 30. Battery;

[0035] 40. Magnetic components;

[0036] 50. Main control board;

[0037] 60. Centrifugal fan impeller; 60a. Receiving trough; 61. Rotating shaft;

[0038] 200. Suspension bracket. Detailed Implementation

[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0040] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0041] This application provides a magnetic fan, which features a motor and a magnetic component arranged along the axial direction of the motor with a battery positioned between them. Furthermore, the magnetic component is spaced apart from the outer periphery of the motor in the radial direction, ensuring that the motor and the magnetic component have spacing in both the axial and radial directions. This prevents the magnetic component from interfering with the original magnetic field distribution of the motor, thus avoiding the problem of motor speed reduction caused by the magnetic component interfering with the original magnetic field distribution.

[0042] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings.

[0043] Please see Figures 1 to 3 This application provides a magnetic fan 1000, which includes a fan body 100. The fan body 100 includes a housing 10, a motor 20, a battery 30, and a magnetic component 40. The motor 20, the battery 30, and the magnetic component 40 are arranged sequentially inside the housing 10, and the magnetic component 40 is arranged at intervals from the outer periphery of the motor 20 in the radial direction of the motor 20.

[0044] In this embodiment, the motor 20, battery 30, and magnetic component 40 are arranged sequentially within the housing 10 along the axial direction of the motor 20. In other embodiments, the motor 20, battery 30, and magnetic component 40 may also be arranged sequentially within the housing 10 along the radial direction of the motor 20.

[0045] There are many ways to install the motor 20, battery 30 and magnetic component 40. The motor 20, battery 30 and magnetic component 40 can be installed in the housing 10 by means of fixed connection such as adhesive or welding. The motor 20, battery 30 and magnetic component 40 can also be installed in the housing 10 by means of detachable connection such as snap-fit, magnetic connection, or buckle connection. No specific limitation is made here.

[0046] In this embodiment, the motor 20, battery 30, and magnetic component 40 are sequentially arranged inside the housing 10 along the thickness direction of the housing 10. This arrangement effectively reduces the length and width of the housing 10, thereby making the fan body 100 easy to carry. In other embodiments, the motor 20, battery 30, and magnetic component 40 may also be sequentially arranged inside the housing 10 along the length or width direction of the housing 10.

[0047] The housing 10 provides mounting positions for other components such as the motor 20, battery 30, and magnetic component 40. The housing 10 has many shapes, including regular shapes such as cuboid, cylinder, and prism, as well as other irregular shapes. No specific limitation is made here.

[0048] There are many ways to form the shell 10. In this embodiment, please refer to... Figure 1 The housing 10 includes a middle frame 11, a front cover 12, and a rear cover 13. A partition plate 111 is provided inside the middle frame 11 to separate a drive compartment 11a and a battery compartment 11b, which are spaced apart along the thickness direction of the middle frame 11. The drive compartment 11a and the battery compartment 11b are both open on opposite sides. The drive compartment 11a includes a power compartment 111a and a mainboard compartment 112a arranged in parallel. The front cover 12 covers the open end of the drive compartment 11a and has an air inlet 12a. The rear cover 13 covers the open end of the battery compartment 11b. Correspondingly, the motor 20... The main control board 50 of the fan body 100 is located in the power compartment 111a, the main board compartment 112a, the battery 30 is located in the battery compartment 11b, and the magnetic component 40 is located in the rear cover 13. Both the battery 30 and the motor 20 are electrically connected to the main control board 50. This arrangement allows for the separate assembly and disassembly of the motor 20, battery 30, magnetic component 40, and main control board 50. Furthermore, the housing 10 can be easily disassembled and assembled by simply removing the front cover 12 and the rear cover 13 from the front and rear sides of the middle frame 11, respectively. In other embodiments, the housing 10 can also be formed by two shell members arranged in a symmetrical manner. The connection method between the two shell members can be set according to the fixed connection or detachable connection methods described above, and will not be elaborated further here.

[0049] Preferably, the middle frame 11 is integrally formed by injection molding, 3D printing, or other methods. This design not only enhances the structural strength and sealing performance of the middle frame 11, but also allows for the one-time forming of various parts of the middle frame 11, such as the partition plate 111 on the middle frame 11. Furthermore, both the front cover 12 and the rear cover 13 are snap-fitted to the middle frame 11, making it easy to assemble and disassemble the front cover 12 and the rear cover 13.

[0050] In this embodiment, please refer to Figure 1 The front cover 12 has a through-hole 12a, which is positioned opposite to the power compartment 111a. A baffle 121 is connected to the side of the front cover 12 facing away from the housing 10. The baffle 121 and the front cover 12 form an air intake gap 12b that communicates with the air intake 12a. The air intake gap 12b is annular. In other embodiments, the front cover 12 may also have air intake holes arranged in an array.

[0051] Additionally, in this embodiment, please refer to Figure 3 The inner side of the rear cover 13 is integrally formed with a limiting ring 131, and the outer peripheral wall of the magnetic component 40 cooperates with the inner peripheral wall of the limiting ring 131, thus facilitating the installation of the magnetic component 40. In other embodiments, the inner side of the rear cover 13 may also have a recessed groove, and the magnetic component 40 may be embedded in the groove.

[0052] Further, please refer to Figure 1 The fan body 100 also includes a centrifugal fan wheel 60, which is located inside the power chamber 111a and is connected to the motor 20. The outer periphery of the middle frame 11 has an air outlet 11c that communicates with the power chamber 111a, and the air outlet 11c is located radially on the centrifugal fan wheel 60. The airflow generated when the centrifugal fan wheel 60 rotates can be blown out through the air outlet 11c. Specifically, the air outlet 11c is located at the top of the outer periphery of the middle frame 11, and the two sides of the air outlet 11c in the length direction correspond to the two sides in the width direction of the middle frame 11, and the two sides of the air outlet 11c in the width direction correspond to the two sides in the thickness direction of the middle frame 11. This makes the air outlet 11c large enough to enhance the airflow effect.

[0053] Furthermore, please refer to Figure 1 The middle frame 11 is also equipped with an air guide grille 112. One end of the air guide grille 112 is located inside the air outlet 11c, and the other end extends into the power chamber 111a. This arrangement ensures that the airflow generated by the centrifugal fan wheel 60 is evenly distributed along the length of the air outlet 11c, preventing a situation where one side of the air outlet 11c experiences a large airflow while the other side experiences almost no airflow. Furthermore, the middle frame 11 and the air guide grille 112 are integrally formed, which enhances the connection strength between the middle frame 11 and the air guide grille 112. The integral forming method is the same as described above and will not be repeated here.

[0054] The number of magnetic components 40 can be one or more; in this document, "more" refers to at least two, and no specific limitation is made. There are many types of magnetic components 40. Magnetic components 40 can be magnetic structures with magnetic attraction capabilities, such as magnets or magnetic blocks. Magnetic components 40 can also be electromagnetic structures with magnetic attraction capabilities when energized. Furthermore, the electromagnetic structure can be configured to include an electromagnet, a sliding rheostat, a power supply, and a switch connected in sequence to form a closed circuit. By moving the slider on the sliding rheostat, the magnetic strength of the electromagnetic structure can be adjusted, thereby adjusting the magnetic attraction strength of the magnetic component 40. Magnetic components 40 can also be magnetic structures that can be magnetically attracted, such as iron blocks or nickel blocks. The materials of such magnetic structures are mainly ferromagnetic materials, including iron, cobalt, nickel and their alloys, as well as some rare-earth magnets and non-metallic magnetic materials, and no specific limitation is made here. Furthermore, magnetic components 40 can be solid or hollow, and no specific limitation is made here.

[0055] Through the above technical solution, in this application, the motor 20, battery 30 and magnetic component 40 are sequentially arranged in the housing 10 along the axial direction of the motor 20, and the magnetic component 40 is arranged in a radial direction of the motor 20 at intervals from the outer periphery of the motor 20. This arrangement ensures that the magnetic component 40 and the motor 20 are spaced apart both axially and radially. This prevents the magnetic component 40 from interfering with the original magnetic field distribution of the motor 20, thereby avoiding the problem of the motor 20 speed decreasing due to the magnetic component 40 interfering with the original magnetic field distribution of the motor 20.

[0056] As an example, and not a limitation, the distance between the magnetic component 40 and the battery 30 can be less than or greater than the distance between the motor 20 and the battery 30. This setting allows the magnetic component 40 and the motor 20 to be spaced apart along the axial direction of the motor 20 while ensuring that the size of the fan body 100 in the axial direction of the motor 20 is not too large, which is beneficial for the compact design of the fan body 100. The distance between the magnetic component 40 and the battery 30 can also be equal to the distance between the motor 20 and the battery 30.

[0057] In order to ensure that the magnetic component 40 does not interfere with the original magnetic field distribution of the motor 20, in one embodiment of this application, the distance between the magnetic component 40 and the axis of the motor 20 in the radial direction is ≥10mm. For example, the distance between the magnetic component 40 and the axis of the motor 20 in the radial direction is 10mm, 10.5mm, 10.9mm, 11mm, 12mm and other distance values.

[0058] Furthermore, the distance between the magnetic component 40 and the motor 20 in the axial direction is ≥10mm. For example, the distance between the magnetic component 40 and the motor 20 in the axial direction is 10mm, 10.5mm, 10.9mm, 11mm, 12mm, or other distance values, which further ensures that the magnetic component 40 will not interfere with the original magnetic field distribution of the motor 20.

[0059] Furthermore, the distance between the motor 20 and the battery 30 is at least the thickness of a partition plate 111, where 1mm ≤ the thickness of the partition plate 111 ≤ 2mm. For example, the thickness of the partition plate 111 can be 1mm, 1.5mm, 2mm, or other thickness values. The distance between the battery 30 and the magnetic component 40 is ≤ 1mm. For example, the distance between the battery 30 and the magnetic component 40 can be 1mm, 0.5mm, 0.1mm, or other distance values. The thickness of the battery 30 is ≤ 8mm. For example, the thickness of the battery 30 can be 8mm, 7mm, 6mm, 5mm, 4mm, or other thickness values. This arrangement allows the motor 20, battery 30, and magnetic component 40 to be arranged compactly along the thickness direction of the housing 10, thereby reducing the thickness of the housing 10.

[0060] Preferably, the thickness of the partition plate 111 is 1.5 mm, the distance between the battery 30 and the magnetic component 40 is 1 mm, and the thickness of the battery 30 is 6 mm. This arrangement allows the motor 20, the battery 30, and the magnetic component 40 to be arranged most compactly along the thickness direction of the housing 10.

[0061] Considering that further increasing the axial distance between the motor 20 and the magnetic component 40 would better ensure that the magnetic component 40 does not interfere with the original magnetic field distribution of the motor 20, please refer to [link to relevant documentation]. Figure 1 In one embodiment of the application, the motor 20 and the wall of the power compartment 111a near the battery compartment 11b are spaced apart. Specifically, the distance between the motor 20 and the wall of the power compartment 111a near the battery compartment 11b is ≤3mm. For example, the distance between the motor 20 and the wall of the power compartment 111a near the battery compartment 11b is 3mm, 2.4mm, 2mm, 1.5mm, 1mm, or other distance values.

[0062] For easier installation of motor 20 into power compartment 111a, please refer to [link / reference]. Figure 1 and Figure 3 In one embodiment of the application, the partition plate 111 is further provided with a mounting bracket 113 located within the power compartment 111a, and the motor 20 is mounted on the mounting bracket 113. The mounting bracket 113 is integrally formed with the partition plate 111, thereby enhancing the connection strength between the mounting bracket 113 and the partition plate 111. Furthermore, the mounting bracket 113 facilitates the placement of the motor 20 at a distance from the wall of the power compartment 111a near the battery compartment 11b.

[0063] In other embodiments, the mounting bracket 113 may not be provided, and the motor 20 may be directly mounted on the wall of the power compartment 111a near the battery compartment 11b.

[0064] Specifically, please refer to Figure 1 , Figure 3 as well as Figure 4 The mounting bracket 113 is a hollow cylindrical structure. One axial end of the mounting bracket 113 is located on the wall of the power compartment 111a near the battery compartment 11b, and the other end extends away from the power compartment 111a. The centrifugal fan wheel 60 is rotatably connected to the mounting bracket 113 via a rotating shaft 61. The motor 20 includes a stator 21 and a rotor 22. The stator 21 is fitted onto the outer periphery of the mounting bracket 113, and the outer peripheral wall of the rotor 22 mates with the inner peripheral wall of the centrifugal fan wheel 60. The rotor 22 is arranged around the stator 21, which facilitates the installation of the motor 20. Specifically, the centrifugal fan wheel 60 has a receiving groove 60a, and the rotor 22 is located in the receiving groove 60a. The outer peripheral wall of the rotor 22 mates with the inner peripheral wall of the receiving groove 60a to fix the rotor 22 and the centrifugal fan wheel 60 together. One end of the rotating shaft 61 is fixedly connected to the bottom of the receiving groove 60a, and the other end of the rotating shaft 61 is rotatably connected to the mounting bracket 113.

[0065] Furthermore, the connection point between the power compartment 111a and the mounting bracket 113 on the wall near the battery compartment 11b extends through to the battery compartment 11b, facilitating the rotatable connection of the rotating shaft 61 to the mounting bracket 113. Additionally, the rotor 22 and stator 21 of the motor 20 are spaced apart from the cavity wall of the power compartment 111a near the battery compartment 11b, thus achieving a spaced-apart arrangement between the motor 20 and the cavity wall of the power compartment 111a near the battery compartment 11b.

[0066] Please see Figure 1 In one embodiment of the application, the projections of the battery compartment 11b and the drive compartment 11a in the thickness direction of the middle frame 11 coincide. The inner peripheral walls of the battery compartment 11b and the drive compartment 11a are both located close to the outer peripheral wall of the middle frame 11, and the outer periphery of the battery 30 is adjacent to the inner periphery of the battery compartment 11b. This arrangement, on the one hand, makes the wall thickness of the middle frame 11 thinner and maximizes the space of the battery compartment 11b and the drive compartment 11a. On the other hand, it makes the battery 30 have a large capacity and a long battery life.

[0067] There are many ways in which the outer periphery of the battery 30 is adjacent to the inner periphery of the battery compartment 11b. In this embodiment, please refer to [reference needed]. Figure 1 and Figure 3In this configuration, a portion of the outer periphery of the battery 30 is adjacent to the inner periphery of the battery compartment 11b. Specifically, the battery 30 is flat, with only its four corners abutting against four points on the inner periphery wall of the battery compartment 11b. The remaining portions of the outer periphery wall of the battery 30 are spaced apart from the inner periphery wall of the battery compartment 11b. This arrangement facilitates heat dissipation of the battery 30 and allows for a larger battery capacity. In other embodiments, all portions of the outer periphery of the battery 30 may be adjacent to the inner periphery of the battery compartment 11b. Specifically, the shape of the outer periphery wall of the battery 30 matches the shape of the inner periphery wall of the battery compartment 11b, ensuring that each position on the outer periphery wall of the battery 30 abuts against each position on the inner periphery wall of the battery compartment 11b. This maximizes the battery capacity and enhances the endurance of the fan body 100.

[0068] Please see Figure 1 and Figure 3 In one embodiment of the application, the portion of the middle frame 11 located between the drive compartment 11a and the battery compartment 11b is formed as a spiral-shaped air guide plate 114. The outer periphery of the middle frame 11 is provided with an air outlet 11c that communicates with the power compartment 111a. The air outlet 11c and the air guide plate 114 are arranged opposite to each other. This arrangement allows the airflow generated by the rotation of the centrifugal fan wheel 60 to be guided to the air outlet 11c through the air guide plate 114, thereby enhancing the blowing effect.

[0069] There are many ways to lay out the wires between the motor 20 and the main control board 50. Please refer to [link / reference]. Figure 3 and Figure 5 In one embodiment of this application, the middle frame 11 also has a first wire passage 11d connecting the power compartment 111a and the battery compartment 11b, and a second wire passage 11e connecting the motherboard compartment 112a and the battery compartment 11b. The motor 20 and the main control board 50 are connected by wires through the first wire passage 11d and the second wire passage 11e. With this configuration, when connecting the motor 20 and the main control board 50 by wires, one end of the wire is first connected to the motor 20, and then the other end of the wire is sequentially passed through the first wire passage 11d, the position of the battery compartment 11b between the first wire passage 11d and the second wire passage 11e, and the second wire passage 11e before being connected to the main control board 50, thus completing the wire layout.

[0070] In other embodiments, a wire passage space can be directly opened on the air guide plate 114 located between the power compartment 111a and the main board compartment 112a in the middle frame 11. One end of the wire is connected to the motor 20, and the other end of the wire passes through the wire passage space and is connected to the main control board 50. With this arrangement, part of the airflow generated by the rotation of the centrifugal fan wheel 60 will be blown through the wire passage space to the main control board 50 in the main board compartment 112a, which will cool down the main control board 50.

[0071] To ensure that the wiring between the motor 20 and the main control board 50 through the battery compartment 11b does not interfere with the arrangement of the battery 30 within the battery compartment 11b, please refer to [the relevant documentation]. Figure 3 and Figure 5 In one embodiment of this application, the battery compartment 11b is recessed in the wall near the drive compartment 11a, and a wire passage 11f is provided to connect the first wire passage 11d and the second wire passage 11e. This arrangement allows the wires to pass through the wire passage 11f without occupying the space inside the battery compartment 11b, and thus does not interfere with the arrangement of the battery 30 inside the battery compartment 11b.

[0072] In this embodiment, the wire passage 11f is arranged in a straight line, and the first wire passage 11d and the second wire passage 11e are connected to the two ends of the wire passage 11f along its length. This arrangement minimizes the wiring path between the motor 20 and the main control board 50, which is beneficial for wire routing. In other embodiments, the wire passage 11f can also be arranged in other shapes such as a zigzag or wavy line.

[0073] Furthermore, in other embodiments, the middle frame 11 may be integrally formed with a tube, which is located on the wall of the battery compartment 11b near the drive compartment 11a. The two ends of the tube are connected to the first wire passage 11d and the second wire passage 11e, respectively, so that wiring can be routed between the first wire passage 11d and the second wire passage 11e.

[0074] Further, please refer to Figure 3 and Figure 5 The battery 30 is covered with the first wire passage 11d, the wire passage 11f, and the second wire passage 11e. This arrangement ensures that the wires are confined within the wire passage 11f after passing through the first wire passage 11d, the wire passage 11f, and the second wire passage 11e, thus preventing the wires from occupying space in the battery compartment 11b.

[0075] For easier routing via the second cable port 11e, please refer to [link / reference]. Figure 3 and Figure 5 In one embodiment of this application, the side of the second cable port 11e away from the first cable port 11d extends to the wall of the motherboard compartment 112a away from the power compartment 111a. The side of the second cable port 11e near the first cable port 11d is flush with the wall of the motherboard compartment 112a near the power compartment 111a. This arrangement can increase the size of the second cable port 11e to facilitate cable routing through the second cable port 11e.

[0076] In other embodiments, the second cable port 11e may extend only to the side of the first cable port 11d away from the motherboard compartment 112a away from the power compartment 111a. Alternatively, the second cable port 11e may be flush with the side of the motherboard compartment 112a away from the power compartment 111a on the side of the first cable port 11d.

[0077] In order to ensure that the airflow generated by the centrifugal fan 60 is evenly distributed along the length of the air outlet 11c, please refer to Figure 3 and Figure 6 In one embodiment of this application, the middle frame 11 also has a volute tongue 115, which is located on the inner peripheral wall of the power chamber 111a near the air outlet 11c. Multiple air guide grilles 112 are evenly spaced along the length of the air outlet 11c. Each air guide grille 112 is convex on the side facing the volute tongue 115. This arrangement allows the airflow generated by the centrifugal fan wheel 60 to be guided by the convex side of the air guide grille 112 and then blown evenly upwards towards the user along the air outlet 11c.

[0078] Further, please refer to Figure 3 and Figure 6 The length between the end of the multiple air guide grilles 112 furthest from the air outlet 11c and the end closest to the air outlet 11c gradually decreases from the air guide grille 112 to the volute tongue 115. The side of the multiple air guide grilles 112 closest to the volute tongue 115 that is facing away from the volute tongue 115 extends vertically and is straight, so that the side of the air guide grille 112 closest to the volute tongue 115 that is facing away from the volute tongue 115 is perpendicular to the air outlet 11c. The side of the multiple air guide grilles 112 furthest from the volute tongue 115 that is facing away from the volute tongue 115 is concave arc-shaped. This arrangement ensures that the airflow generated by the centrifugal fan wheel 60 can be guided by the convex side of the air guide grille 112 and then blown evenly upwards towards the user along the air outlet 11c.

[0079] In this embodiment, please refer to Figure 6 Five air guide grilles 112 are provided. The three air guide grilles closest to the volute tongue 115 extend vertically and are straight on the side facing away from the volute tongue 115, so that the side of these three air guide grilles facing away from the volute tongue 115 is perpendicular to the air outlet 11c. The two air guide grilles furthest from the volute tongue 115 have a concave arc shape on the side facing away from the volute tongue 115. In other embodiments, four, six, or other numbers of air guide grilles 112 may also be provided.

[0080] Furthermore, please refer to Figure 6The volute tongue 115 includes a first guide section 1151 and a second guide section 1152 connected at an acute angle. The first guide section 1151 and the second guide section 1152 are located on the inner peripheral wall of the power compartment 111a, and are far apart from each other. The connection between the first guide section 1151 and the second guide section 1152 is rounded. The first guide section 1151 is straight and tilted towards the air guide grille 112. The second guide section 1152 is arc-shaped, and its end away from the first guide section 1151 is connected to the power compartment. The inner peripheral wall of the chamber 111a is smoothly connected. The vertical distance between the connection point of the first guide section 1151 and the second guide section 1152 and the top wall of the middle frame 11 is equal to the vertical distance between the side of the guide grille 112 furthest from the volute tongue 115 and the top wall of the middle frame 11. This makes it easier for the airflow generated by the centrifugal fan wheel 60 to be guided by the convex side of the guide grille 112 and blown evenly upwards towards the user along the air outlet 11c.

[0081] Please see Figure 1 and Figure 7 In one embodiment of the application, the magnetic fan 1000 further includes a hanging bracket 200, and the fan body 100 is magnetically connected to the hanging bracket 200. Specifically, the hanging bracket 200 is embedded with a magnetic component (not shown) that is magnetically attracted to the magnetic component 40 on the rear shell of the fan body 100, thus making the detachable connection between the fan body 100 and the hanging bracket 200 a magnetic connection. Alternatively, the detachable connection between the fan body 100 and the hanging bracket 200 can also be configured with reference to the detachable connection method in the above embodiments, which will not be elaborated further here.

[0082] The hanging bracket 200 is connected to a lanyard (not shown). The user first hangs the hanging bracket 200 around their neck using the lanyard, then magnetically attaches the fan body 100 to the hanging bracket 200, allowing the portable fan to be used. Clearly, the hanging bracket 200 and the fan body 100 can be directly magnetically attached together, or the hanging bracket 200 can be positioned inside the user's clothing, with the fan body 100 positioned outside, clamping the user's clothing when magnetically attached.

[0083] It is worth mentioning that at least one of the magnetic component 40 on the fan body 100 and the magnetic component on the suspension bracket 200 is configured to have magnetic adsorption capability. For example, both the magnetic component 40 and the magnetic component are configured to have magnetic adsorption capability, or the magnetic component 40 is configured to have magnetic adsorption capability, and the magnetic component is configured to be magnetically adsorbed.

[0084] Obviously, the embodiments described above are only some embodiments of this application, not all embodiments. The accompanying drawings show preferred embodiments of this application, but do not limit the patent scope of this application. This application can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this application's specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the scope of patent protection of this application.

Claims

1. A magnetic fan (1000), characterized in that, The magnetic fan (1000) includes a fan body (100), which includes a housing (10), a motor (20), a battery (30), and a magnetic component (40). The motor (20), the battery (30), and the magnetic component (40) are arranged sequentially inside the housing (10), and the magnetic component (40) is arranged at intervals from the outer periphery of the motor (20) in the radial direction of the motor (20).

2. The magnetic fan (1000) according to claim 1, characterized in that, The motor (20), the battery (30) and the magnetic component (40) are arranged sequentially inside the housing (10) along the thickness direction of the housing (10).

3. The magnetic fan (1000) according to claim 1, characterized in that, The housing (10) includes a middle frame (11), and a partition plate (111) is provided in the middle frame (11) to separate a drive compartment (11a) and a battery compartment (11b) that are spaced apart along the thickness direction of the middle frame (11). The drive compartment (11a) includes a power compartment (111a) and a motherboard compartment (112a) arranged in parallel. The motor (20) is located in the power compartment (111a), the main control board (50) of the fan body (100) is located in the motherboard compartment (112a), and the battery (30) is located in the battery compartment (11b).

4. The magnetic fan (1000) according to claim 3, characterized in that, The motor (20) and the power compartment (111a) are spaced apart from each other near the wall of the battery compartment (11b).

5. The magnetic fan (1000) according to claim 3, characterized in that, The partition plate (111) is also provided with a mounting bracket (113) located in the power compartment (111a), and the motor (20) is mounted on the mounting bracket (113).

6. The magnetic fan (1000) according to claim 3, characterized in that, The drive compartment (11a) and the battery compartment (11b) are both open on the side away from each other; The housing (10) also includes a front cover (12) and a rear cover (13). The front cover (12) covers the open end of the drive compartment (11a) and has an air inlet (12a). The rear cover (13) covers the open end of the battery compartment (11b). The magnetic component (40) is located on the rear cover (13).

7. The magnetic fan (1000) according to claim 3, characterized in that, The projections of the battery compartment (11b) and the drive compartment (11a) in the thickness direction of the middle frame (11) coincide, and the outer periphery of the battery (30) is arranged adjacent to the inner periphery of the battery compartment (11b).

8. The magnetic fan (1000) according to claim 3, characterized in that, The portion of the middle frame (11) located between the drive compartment (11a) and the battery compartment (11b) is formed as a spiral-shaped air guide plate (114). The outer periphery of the middle frame (11) is provided with an air outlet (11c) communicating with the power compartment (111a). The air outlet (11c) and the air guide plate (114) are arranged opposite to each other.

9. The magnetic fan (1000) according to any one of claims 1 to 8, characterized in that, The distance between the magnetic component (40) and the axis of the motor (20) in the radial direction is ≥10mm.

10. The magnetic fan (1000) according to any one of claims 1 to 8, characterized in that, The magnetic fan (1000) also includes a suspension bracket (200), and the fan body (100) is magnetically connected to the suspension bracket (200).

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