Fan with magnetic screen

Abstract

The utility model relates to a fan with a magnetic screen, which comprises a main frame, a mounting groove is arranged in the main frame, the main frame comprises a fan upper cover and a fan lower cover, a clamping groove is arranged on the inner side of the fan lower cover, a clamping block is arranged at the bottom of the fan upper cover, a hollow plate is connected to the inner side of the fan lower cover, and the top of the hollow plate extends upwards to be provided with a first mounting cylinder. And a main control board is mounted on the first mounting cylinder. The magnetic screen is tightly attached to the magnetic mounting plate through magnetism and is positioned through the buckles and the clamping rods, so that the magnetic screen can be quickly positioned and mounted and only needs to be pulled out during disassembly, operation is simple, a user can easily replace the screen according to own preferences or requirements, and flexibility is high; due to the design of the hollow shaft, the fan blades can be detached very conveniently, the magnetic attraction mounting plate on the hollow shaft can not abut against the positions above the fan blades any more by rotating the nut at the bottom of the hollow shaft, then the fan blades are taken out, and a circuit cannot be affected.

Description

Technical Field

[0001] This utility model belongs to the field of fan technology, specifically relating to a fan with a magnetic screen. Background Technology

[0002] With the development of technology and the diversification of user needs, the combination of chassis fans and screens has gradually become a trend. In the traditional design of chassis fans and screens, the screen is often tightly connected to the fan or chassis by screws, clips and other fixing methods. However, in practical applications, once the screen is installed, its content and form are difficult to change. If users want to change the content or style of the screen display, they often need to perform complicated disassembly and reinstallation operations, and may even need to replace the entire fan assembly.

[0003] To address the limitations of existing fixed screen setups, this invention designs a fan with a magnetically attached screen. Through the attraction of magnetic materials, the screen and fan can be detachably connected, greatly improving the screen's flexibility. While ensuring normal power supply to the magnetically attached screen, the fan can also be independently detached. Utility Model Content

[0004] The purpose of this invention is to provide a fan with a magnetic screen to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a fan with a magnetic screen, comprising a main frame, an installation groove inside the main frame, the main frame including a fan upper cover and a fan lower cover, a slot inside the fan lower cover, a locking block at the bottom of the fan upper cover, a hollow plate connected to the inside of the fan lower cover, a first mounting cylinder extending upward from the top of the hollow plate, a main control board mounted on the first mounting cylinder, a second mounting cylinder at the top of the main control board, fan blades slidably mounted inside the second mounting cylinder, an installation shaft with a circular groove on the fan blades, a hollow shaft slidably mounted inside the installation shaft, a magnetic mounting plate at the top of the hollow shaft, a nut threadedly fixed to the lower part of the hollow shaft, and a magnetic screen mounted on the top of the magnetic mounting plate.

[0006] Preferably, a screen control board is installed on the magnetic mounting plate at a position between the magnetic screens, the screen control board is provided with contact pads, and the bottom of the magnetic screen is provided with spring pins.

[0007] Preferably, the main frame has assembly openings on both the left and right sides, and a light strip is connected between the assembly openings. A first connector is provided on the left side of the light strip at the position of the assembly opening, and a pin is provided on the right side of the light strip at the position of the assembly opening.

[0008] Preferably, a wire frame is connected between the fan bottom cover and the hollow plate, and a wire is provided in the wire frame. The input end of the wire is connected to the light strip. A through groove is opened at the bottom of the hollow plate. The wire has a first output end and a second output end. The first output end is connected to the main control board, and the second output end passes through the through groove and is connected to the screen control board.

[0009] Preferably, a controller is also provided, with a USB main interface on the front side of the controller and a second connector on the left side of the controller.

[0010] Preferably, a T-shaped card block is provided on the right side of the main frame, and T-shaped card slots are opened on the left side of the main frame and the left side of the controller.

[0011] Preferably, both the first connector and the second connector are spring connectors.

[0012] Preferably, the light strip has a built-in USB+PWM+AGB module.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] The magnetic screen in this invention is tightly attached to the magnetic mounting plate by magnetism and is positioned by buckles and levers. This design allows the magnetic screen to be quickly positioned and installed, and it can be easily removed by simply pulling it out. The operation is simple, and users can easily replace the screen according to their own preferences or needs, which is highly flexible.

[0015] The hollow shaft design of this utility model makes it very convenient to disassemble the fan blades. By rotating the nut at the bottom of the hollow shaft, the magnetic mounting plate on the hollow shaft can be removed from the top of the fan blades, and the fan blades can be taken out without affecting the circuit.

[0016] In this utility model, the hollow plate connected to the inner side of the fan lower cover is a circular plate connected by three hollow rods extending from the inner wall of the fan lower cover. This hollow structure can minimize the obstruction of the frame to the airflow, allowing the air to pass through more smoothly, thereby improving the fan's air delivery efficiency.

[0017] This utility model has a rubber ring fitted on the mounting shaft. The rubber ring is located between the mounting shaft and the top of the first mounting cylinder. When installing the fan blades, the user can judge whether they are fully installed by the elastic resistance, so as to avoid excessive force and damage to the main control board, and play a certain buffering and protection role.

[0018] In this utility model, the T-shaped card block on the right side of the main frame and the T-shaped card slot on the left side of the main frame and the left side of the controller cooperate with each other, and the use of spring connectors enables a stable connection between the main frames and between the main frame and the controller. Even under vibration or impact, a good electrical connection can be maintained, avoiding the problem of the pins and connectors becoming loose due to slight collisions when multiple fans are used together, which affects the stability of signal transmission.

[0019] The magnetic screen in this invention can display real-time temperature, humidity, air quality, fan speed, operating mode and other information, and has the functions of information display and personalized display. At the same time, the magnetic screen can be replaced with nameplate, plastic parts, wood grain parts and other components that can play other functions.

[0020] This utility model has a built-in USB + PWM + ARGB module, which enables power supply and display data reception through the USB interface. It also receives PWM signals to control the fan speed and ARGB signals to control the lighting of the fan or magnetic screen. Users can adjust the fan speed and lighting effects according to their needs. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention and its external controller;

[0022] Figure 2 This is a three-dimensional structural diagram of the present invention;

[0023] Figure 3 This is the first exploded view of this utility model;

[0024] Figure 4 This is a second exploded view of the present invention;

[0025] Figure 5 This is a diagram showing the state of multiple fans operating in conjunction with this utility model;

[0026] Figure 6 This is an exploded view of the present invention, showing the use of multiple fans in combination.

[0027] The diagram labels are as follows: 1-Overall frame, 101-Fan top cover, 102-Fan bottom cover, 103-Card slot, 104-Card block, 2-Mounting slot, 3-Perforated plate, 4-First mounting cylinder, 5-Main control board, 6-Second mounting cylinder, 7-Fan blade, 8-Round groove, 9-Mounting shaft, 10-Hollow shaft, 11-Magnetic mounting plate, 12-Thread, 13-Nut, 14-Magnetic screen, 15-Screen control board, 16-Contact pad, 17-Spring pin, 18-Assembly port, 19-Light strip, 20-First connector, 21-Pin, 22-Wire frame, 23-Through slot, 24-Controller, 25-USB main interface, 26-Second connector, 27-T-shaped card block, 28-T-shaped card slot. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Example 1

[0030] like Figures 1 to 6The fan shown includes a magnetically attached screen, comprising a main frame 1 with an internal mounting groove 2. The main frame 1 includes a fan upper cover 101 and a fan lower cover 102. A slot 103 is provided on the inner side of the fan lower cover 102. A locking block 104 is provided at the bottom of the fan upper cover 101. A perforated plate 3 is connected to the inner side of the fan lower cover 102. A first mounting cylinder 4 extends upward from the top of the perforated plate 3. A main control board 5 is mounted on the first mounting cylinder 4. A second mounting cylinder 6 is provided on the top of the main control board 5. A fan blade 7 is slidably mounted inside the mounting cylinder 6. A mounting shaft 9 is provided on the fan blade 7 via a circular groove 8. A hollow shaft 10 is slidably mounted inside the mounting shaft 9. A magnetic mounting plate 11 is provided at the top of the hollow shaft 10. A nut 13 is fixed to the lower part of the hollow shaft 10 via a thread 12. A magnetic screen 14 is mounted on the top of the magnetic mounting plate 11. A screen control board 15 is mounted on the magnetic mounting plate 11 at a position between the magnetic screens 14. The screen control board 15 has contact pads 16. The bottom of the magnetic screen 14 has... There is a spring pin 17; the main frame 1 has assembly ports 18 on both the left and right sides, and a light strip 19 is connected between the assembly ports 18. The left side of the light strip 19 is provided with a first connector 20 at the position of the assembly port 18, and the right side of the light strip 19 is provided with a pin 21 at the position of the assembly port 18; a wire frame 22 is connected between the fan lower cover 102 and the hollow plate 3. The wire frame 22 contains a wire, and the input end of the wire is connected to the light strip 19. The bottom of the hollow plate 3 has a through groove 23. The wire has a first output end and a second output end. The first output end is connected to the main control board 5, and the second output end passes through the through groove 23 and is connected to the screen control board 15; a controller 24 is also provided. The front of the controller 24 has a USB main interface 25, and the left side of the controller 24 has a second connector 26; the right side of the main frame 1 has a T-shaped card block 27, and the left side of the main frame 1 and the left side of the controller 24 have T-shaped card slots 28; the first connector 20 and the second connector 26 are both spring connectors; the light strip 19 has a built-in USB+PWM+AGB module.

[0031] The magnetic screen 14 in this invention is magnetically attached to the magnetic mounting plate 11 and is positioned by clips and levers. This design allows for quick installation and easy removal of the magnetic screen 14, which can be easily replaced by simply pulling it out. Users can easily change the screen according to their preferences or needs, offering high flexibility. The hollow shaft 10 design also makes the removal of the fan blade 7 very convenient. By rotating the nut 13 at the bottom of the hollow shaft 10, the magnetic mounting plate 11 on the hollow shaft 10 is no longer pressed against the top of the fan blade 7, allowing the fan blade 7 to be removed without affecting the circuit. The hollow plate 3 connected to the inner side of the fan lower cover 102 is a circular plate connected by three hollow rods extending from the inner wall of the fan lower cover 102. This hollow structure minimizes the obstruction of airflow by the frame, allowing air to pass through more smoothly and thus improving the fan's air delivery efficiency. A rubber ring is fitted on the mounting shaft 9, located between the mounting shaft 9 and the first mounting plate 11. Between the top of the mounting cylinder 4, the user can judge whether the fan blade 7 is fully installed by the elastic resistance, avoiding excessive force that could damage the main control board 5, thus providing a certain buffering and protection function; the T-shaped locking block 27 on the right side of the main frame 1 and the T-shaped locking slot 28 on the left side of the main frame 1 and the controller 24, along with the use of spring connectors, ensure a stable connection between the main frames 1 and between the main frame 1 and the controller 24. Even under vibration or impact, a good electrical connection can be maintained, preventing the problem of the pins 21 and connectors becoming loose due to slight collisions when multiple fans are used simultaneously, thus affecting the stability of signal transmission; the magnetic screen 14 in this invention can display real-time temperature, humidity, air quality, fan speed, operating mode, and other information, providing information display and personalized display functions. The magnetic screen 14 can also be replaced with a nameplate, plastic parts, wood grain parts, or other components that can serve other functions; this invention has a built-in USB port. The + PWM + ARGB module provides power and displays data via a USB interface. It also receives PWM signals to control the fan speed and ARGB signals to control the fan or the lighting on the magnetic screen 14. Users can adjust the fan speed and lighting effects according to their needs.

[0032] Example 2

[0033] like Figures 1 to 6The fan shown includes a magnetic screen and a main frame 1. The main frame 1 can be square or other shapes required by the user. It has a circular mounting groove 2 inside for mounting the fan blades 7. The main frame 1 includes a fan upper cover 101 and a fan lower cover 102. Both the upper and lower covers 102 are hollow and have mounting grooves 2. The fan lower cover 102 has a slot 103 on its inner side. The fan upper cover 101 has a locking block 104 at its bottom. When installing, the fan upper cover 101 can be installed and spliced ​​with the fan lower cover 102 by inserting the locking block 104 into the slot 103 to form the main frame 1. The lower part of the fan upper cover 101 and the upper part of the fan lower cover 102 are hollow.

[0034] A perforated plate 3 is connected to the inner side of the fan lower cover 102. Specifically, the perforated plate 3 is a circular plate connected by three perforated rods extending from the inner wall of the fan lower cover 102. It can minimize the obstruction of airflow by the frame. The perforated plate 3 can be used to install the fan blades 7. The gap between it and the fan lower cover 102 can be used for heat dissipation, allowing air to pass through more smoothly and improving the fan's air delivery efficiency. A first mounting cylinder 4 extends upward from the top of the perforated plate 3. That is, the first mounting cylinder 4 extends upward from the bottom center of the perforated plate 3 in a "trumpet shape". The diameter of the first mounting cylinder 4 is the same as the minimum diameter of the "trumpet". The main control board 5 is mounted on the first mounting cylinder 4 in a set. The main control board 5 is located above the perforated plate 3 and is specifically a three-in-one PCB board with built-in USB+PWM+AGB modules. A second mounting cylinder 6 is provided on the top of the main control board 5. The fan blades 7 are slidably installed in the second mounting cylinder 6. After the fan blades 7 are installed in the second mounting cylinder 6, the main control board 5 drives the fan blades 7 to rotate and adjusts the speed of the fan blades 7 by receiving PWM signals.

[0035] The fan blade 7 has a mounting shaft 9 provided by opening a circular groove 8. The mounting shaft 9 is hollow. Understandably, when the user disassembles or installs the fan blade 7, he only needs to hold the fan blade 7 and align the mounting shaft 9 with the first mounting cylinder 4, and the fan blade 7 can be inserted into the second mounting cylinder 6 to complete the installation.

[0036] A hollow shaft 10 is slidably provided inside the mounting shaft 9. A magnetic mounting plate 11 is provided on the top of the hollow shaft 10, that is, the magnetic mounting plate 11 is located above the fan blade 7. At the same time, a nut 13 is fixedly connected to the lower part of the hollow shaft 10 by a thread 12. Specifically, the hollow shaft 10 passes downward through the first mounting cylinder 4. When the user tightens the nut 13 to fix the hollow shaft 10 and the magnetic mounting plate 11, the magnetic mounting plate 11 will also hold the fan blade 7 firmly on the second mounting cylinder 6, thus providing secondary reinforcement to the installation of the fan blade 7 and preventing the fan blade 7 from falling off when rotating.

[0037] The magnetic mounting plate 11 is mainly used to mount screens, nameplates, plastic parts, wood grain parts, etc., of the same shape. The screen can be used to display real-time temperature, humidity, air quality, or fan speed, operating mode, etc., and can also be used to display information obtained after linkage with other smart devices, such as time and date, personalized text, or short videos. The nameplate can be used to display brand logo, brand model, energy efficiency rating, or certification mark. The plastic parts and wood grain parts can serve as decorative panels. The plastic parts, specifically acrylic sheets, can be directly installed on the magnetic mounting plate 11 without power requirements.

[0038] Continuing from the above, in this embodiment, a magnetic screen 14 is specifically installed. The magnetic mounting plate 11 has buckles on both the top left and right sides, and a corresponding locking rod is provided at the bottom of the magnetic screen 14. The magnetic screen 14 can be kept in close contact with the magnetic mounting plate 11 by the magnetism between them. The action of the locking rod inserting into the buckles can play a good positioning role for the magnetic screen 14, so that the magnetic screen 14 can be quickly positioned and installed by magnetic attraction, and the magnetic screen 14 can be prevented from rotating randomly during operation. A screen control board 15 is installed on the top of the magnetic mounting plate 11, and at the position between it and the magnetic screen 14. The screen control board 15 is provided with contact pads 16, and correspondingly, a spring pin 17 is provided at the bottom of the magnetic screen 14. The spring pin 17 contacts and engages with the contact pads 16. Specifically, the screen control board 15 is installed on the top of the magnetic mounting plate 11. When the screen control board 15 is powered on, the power supply and signal transmission of the magnetic screen 14 can be completed through the contact pads 16 on the magnetic mounting plate 11 and the gold-plated spring pin 17 contacts at the bottom of the magnetic screen 14, so that the content to be displayed is projected onto the magnetic screen 14.

[0039] In addition, the magnetic screen 14 also supports Bluetooth control. Through its built-in Bluetooth module, the magnetic screen 14 can wirelessly connect to smartphones, tablets, or other smart devices. Users can remotely control the displayed content of the magnetic screen 14 via an application (APP) on these devices, including real-time updates of temperature and humidity data, adjusting fan speed display modes, modifying time and date formats, and even uploading personalized text, images, or short videos. In practical applications, users can choose different control methods according to their specific needs. When a stable and continuous display of fixed information is required, wired power supply and signal transmission are achieved through the contact pads 16 and gold-plated spring pins 17 of the magnetic mounting plate 11. When flexible adjustment of the displayed content or linkage with other smart devices is required, the user can switch to Bluetooth control mode, thus meeting diverse user needs.

[0040] In the above embodiment, the fan's overall frame 1 consists of a fan upper cover 101 and a fan lower cover 102, both of which have circular mounting slots 2 inside. The fan lower cover 102 extends inward and has a perforated plate 3 for mounting the fan blades 7. The perforated plate 3 can reduce airflow obstruction and improve air delivery efficiency. The top of the perforated plate 3 has a first mounting cylinder 4, and the main control board 5 is fitted onto the first mounting cylinder 4. The fan blades 7 are slidably mounted in the second mounting cylinder 6 at the top of the main control board 5. The fan blades 7 are controlled by a PWM signal to adjust their speed. At the same time, the mounting shaft 9 in the fan blades 7 is slidably fitted onto the hollow shaft 10. The magnetic mounting plate 11 at the top of the hollow shaft 10 is used to mount the magnetic screen 14. The top of the magnetic mounting plate 11 has a screen control board 15, which contacts and engages with the spring pins 17 at the bottom of the magnetic screen 14 through the contact pads 16 to achieve power supply and signal transmission for the screen. At the same time, the magnetic mounting plate 11 and the magnetic screen 14 are magnetically attached and positioned by buckles and levers to ensure a stable installation and prevent rotation.

[0041] According to the above installation method, both the fan blade 7 and the magnetic screen 14 can be easily disassembled. The magnetic screen 14 can be pulled out directly, and the latch at the bottom of the magnetic screen 14 no longer needs to be inserted into the buckle. After disassembly, the user can replace the magnetic screen 14 as needed. When the fan blade 7 needs to be replaced, turn the nut 13 at the bottom of the hollow shaft 10 to move the hollow shaft 10 upward until it is pulled out from the mounting shaft 9, so that the magnetic mounting plate 11 on the hollow shaft 10 no longer presses against the top of the fan blade 7, and then the fan blade 7 can be taken out.

[0042] Furthermore, in order to avoid damaging the main control board 5 by excessive force during the reciprocating installation and disassembly of the fan blade 7, a rubber ring is also fitted on the mounting shaft 9. The rubber ring will be located between the mounting shaft 9 and the top of the first mounting cylinder 4. The user can judge whether it is fully installed by the elastic resistance during installation.

[0043] Subsequently, this embodiment also requires the design of power supply and signal transmission based on the detachable fan blades 7 and the magnetic screen 14, specifically including:

[0044] The main frame 1 has assembly ports 18 on both the left and right sides, and a light strip 19 is connected between the assembly ports 18. The light strip 19 is located between the upper fan cover 101 and the lower fan cover 102. A first connector 20 is provided on the left side of the light strip 19 at the position of the assembly port 18, and a pin 21 is provided on the right side of the light strip 19 at the position of the assembly port 18. The light strip 19 receives PWM signals to control the fan speed and receives ARGB signals to control the light of the fan or the magnetic screen 14. Power supply and display data reception are achieved through the first connector 20 and the pin 21.

[0045] A wire frame 22 is connected between the fan bottom cover 102 and the hollow plate 3. The wire frame 22 contains wires, and the input end of the wires is connected to the light strip 19 to receive power from the light strip 19. The bottom of the hollow plate 3 has a through groove 23, and the other end of the wires can be pulled out through the through groove 23. The wires have two output ends. The first output end is directly connected to the main control board 5 inside the hollow plate 3, and the second output end passes through the through groove 23 and is pulled upward through the hollow shaft 10 to connect to the screen control board 15.

[0046] In practical applications, the USB interface is mainly used to provide a stable power supply to the main control board 5 and the screen control board 15. Power is transmitted from the light strip 19 to the wire input terminal in the wire frame 22 through the wire, and then directly connected to the main control board 5 through the first output terminal of the wire. The main control board 5 distributes the received power to the fan drive circuit to ensure that the fan blades 7 can rotate normally. The power is also connected to the screen control board 15 through the second output terminal of the wire. The screen is powered by contacting the spring pin 17 at the bottom of the magnetic screen 14 through the contact pad 16. At the same time, the USB interface can also realize the transmission of display data. The display data is transmitted to the screen control board 15 through the second output terminal. The screen control board 15 converts it into a signal format that the magnetic screen 14 can recognize and drives the magnetic screen 14 to display information such as real-time temperature, humidity, air quality, and fan operation mode, or display content such as time and date, personalized text and short videos.

[0047] The main control board 5 has a built-in drive circuit. After receiving the PWM signal output from the first output terminal, the drive circuit adjusts the speed of the fan motor according to the duty cycle of the signal. When the duty cycle of the PWM signal increases, the speed of the fan motor increases; when the duty cycle decreases, the speed decreases. Thus, the user can adjust the fan speed according to their needs.

[0048] The ARGB signal is transmitted to the main control board 5, which then distributes the signal to the backlight modules of the light strip 19 and the magnetic screen 14. It should be noted that the ARGB signal contains control signals for three colors: red, green, and blue. By adjusting the brightness and combination of these three colors, various lighting effects can be achieved. Therefore, users can set the color of the light emitted by the fan and the magnetic screen 14 according to their preferences, or make the light run in breathing light, flashing light, or other modes to increase the overall aesthetics and personalized experience.

[0049] That is, after the wires enter the wiring frame 22, they split into two outputs. The first output connects to the main control board 5, providing power and PWM signals to ensure the normal operation and speed control of the fan. The second output passes through the slot 23 at the bottom of the hollow plate 3, extends upward through the hollow shaft 10 to the screen control board 15. The screen control board 15 contacts the spring pins 17 at the bottom of the magnetic screen 14 via the contact pads 16, realizing the power supply and display data transmission for the screen. The above settings not only ensure stable signal transmission, but also, through the structure of the hollow shaft 10, allow the fan blades 7 and the magnetic display screen to be easily disassembled while still ensuring stable signal transmission. The signal transmission will not be interrupted by disassembly or installation, facilitating the inspection and maintenance of the internal circuitry and ensuring the long-term stable operation of the fan blades 7 and the magnetic screen 14.

[0050] Furthermore, in this embodiment, the fan can be used individually or in combination as needed. When used individually, the peripheral controller 24 provides power and signal transmission to the LED strip 19. The controller is a long, flat rectangle with a USB main interface 25 for power supply on its front and a second connector 26 for data transmission on its left side. The second connector 26 is connected to the mounting port 18 on the right side. When the fan needs to be used, the USB main interface 25 of the controller 24 is connected to a power adapter or a computer USB port to provide a stable power supply to the main control board 5 and the screen control board 15. At the same time, PWM and ARGB signals are transmitted to the LED strip 19 of the fan through the second connector 26 on the left side of the controller 24.

[0051] When multiple fans need to be used together, the pin 21 on the right side of the main frame 1 can be inserted into the first connector 20 and the second connector 26 to complete the electrical signal connection between the various main frames 1. However, if the fans are connected in the above way, slight collisions can easily cause the pin 21 to loosen from the connector, resulting in unstable signal transmission. In addition, if the electrical connection is not properly shielded when multiple fans are used together, it may be subject to electromagnetic interference (EMI), affecting the accuracy and stability of the signal.

[0052] Therefore, a splicing component is also provided, including a T-shaped card block 27 on the right side of the main frame 1, and a T-shaped card slot 28 on the left side of the main frame 1 and the left side of the controller 24. The T-shaped card block 27 can be inserted into the horizontal slot of the T-shaped card slot 28 first, and then pushed backward into the vertical slot of the T-shaped card slot 28 to complete its own positioning, that is, to complete the splicing between the main frames 1 and between the main frame 1 and the controller 24.

[0053] Considering that there is a vertical movement between the overall frame 1 and the controller 24 for splicing, the first connector 20 and the second connector 26 in this embodiment can also be spring connectors to ensure stable contact between the pin 21 and the connector. The spring can provide continuous pressure to ensure good electrical connection even under vibration or impact.

[0054] In summary, the overall frame 1 and the controller 24 can achieve a stable connection through the insertion of connectors, T-shaped card blocks 27 and T-shaped card slots 28, thereby enabling stable input and output of current and data.

[0055] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0056] The above description is only used to illustrate the technical solution of this utility model and is not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model, as long as they do not depart from the spirit and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.

Claims

1. A fan with a magnetic screen, comprising a main frame, wherein a mounting groove is provided inside the main frame, the main frame includes a fan upper cover and a fan lower cover, wherein a slot is provided on the inner side of the fan lower cover, and a locking block is provided at the bottom of the fan upper cover, characterized in that, A perforated plate is connected to the inner side of the fan's lower cover. A first mounting cylinder extends upward from the top of the perforated plate, and a main control board is mounted on the first mounting cylinder. A second mounting cylinder is located on the top of the main control board, and fan blades are slidably mounted inside the second mounting cylinder. A mounting shaft is provided on the fan blades through a circular groove. A hollow shaft is slidably mounted inside the mounting shaft. A magnetic mounting plate is located on the top of the hollow shaft, and a nut is threadedly fixed to the lower part of the hollow shaft. A magnetic screen is mounted on the top of the magnetic mounting plate, and a screen control board is mounted on the magnetic mounting plate between the magnetic screens. The screen control board has contact pads, and a spring pin is located at the bottom of the magnetic screen. Assembly ports are opened on both the left and right sides of the overall frame, and an LED strip is connected between the assembly ports. A first connector is located on the left side of the LED strip at the assembly port, and a pin is located on the right side of the LED strip at the assembly port.

2. A fan with a magnetic screen according to claim 1, characterized in that, A wire frame is connected between the fan's lower cover and the hollow plate. A wire is provided in the wire frame. The input end of the wire is connected to the light strip. A through slot is opened at the bottom of the hollow plate. The wire has a first output end and a second output end. The first output end is connected to the main control board, and the second output end passes through the through slot and is connected to the screen control board.

3. A fan with a magnetic screen according to claim 1, characterized in that, It also includes a controller, which has a USB main interface on the front and a second connector on the left side.

4. A fan with a magnetic screen according to claim 3, characterized in that, The right side of the main frame is provided with a T-shaped card block, and the left side of the main frame and the left side of the controller are provided with T-shaped card slots.

5. A fan with a magnetically attached screen according to claim 3, characterized in that, Both the first connector and the second connector are spring connectors.

6. A fan with a magnetic screen according to claim 1, characterized in that, The light strip has a built-in USB+PWM+AGB module.

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