Cooling fan with rotating speed display function

Abstract

The utility model relates to a cooling fan with a rotating speed display function. The cooling fan comprises a fan support, a fixed module and a movable module. The fixed module comprises a stator connected with the fan support, a plurality of conductive needles arranged on the stator in a penetrating mode, a motor control panel located at the bottom end of the stator, a display control panel located at the top end of the stator and a display screen installed on the display control panel. The movable module comprises a rotor arranged on the peripheral side of the stator in a sleeving mode and fan blades connected with the rotor. A mounting groove for accommodating the rotor is formed in the axis of the fan blade; a light-transmitting part is arranged at the top of the axis of the fan blade and located above the display screen. The display screen and the display control panel are integrated on the fixed module of the motor, the display control panel is installed, fixed and electrically connected through the conductive needle, the display screen is hidden in the axis of the fan blades, the requirement of a user for independent display of the rotating speed of the cooling fan is met, the structure is simple, occupied space is small, and cost is low. And the wiring difficulty in the electronic equipment is not increased.

Description

Technical Field

[0001] This utility model relates to the field of radiator technology, and in particular to a cooling fan with a speed display function. Background Technology

[0002] As the power of electronic devices increases, so does their heat dissipation. Therefore, heat sinks have become a very common component in electronic devices. Because the internal cavity of electronic devices is relatively enclosed, natural airflow is difficult. Therefore, heat sinks are usually combined with cooling fans to form a heat dissipation module. The heat sink is connected to the high-power module of the electronic device to transfer and dissipate heat, while the cooling fan drives airflow within the electronic device's cavity, creating an airflow that carries the heat dissipated by the heat sink to the external environment, thus improving heat dissipation efficiency.

[0003] In traditional cooling modules, the operating parameters of the cooling fan are typically sent to the motherboard of the electronic device, where the fan speed is displayed on the device's screen. Currently, some cooling modules on the market have a separate display screen, which is flexibly connected to the cooling fan via wires and then mounted on the heatsink. While this design satisfies the needs of some users who require individual display of the cooling fan speed, it is structurally complex, occupies a large space, and increases the difficulty of internal wiring within the electronic device. Utility Model Content

[0004] Based on this, the present invention provides a cooling fan with a speed display function, which integrates the display screen and the display control board on the fixed module of the motor. The display control board is installed, fixed and electrically connected by conductive pins. Moreover, the display screen is hidden in the axis of the fan blade, which meets the user's need for separate display of the speed of the cooling fan. In addition, the structure is simple, occupies little space and does not increase the wiring difficulty inside the electronic equipment.

[0005] A cooling fan with a speed display function includes:

[0006] Fan bracket;

[0007] A stator module mounted on a fan bracket; the stator module includes: a stator connected to the fan bracket, multiple conductive pins passing through the stator, a motor control board located at the bottom of the stator, a display control board located at the top of the stator, and a display screen mounted on the display control board; the conductive pins connect the motor control board and the display control board in series on the stator, and the conductive pins also provide electrical connection between the motor control board and the display control board; and

[0008] A moving module is connected to a stationary module; the moving module includes: a rotor sleeved on the outer periphery of the stator and a fan blade connected to the rotor; the fan blade has a mounting groove for receiving the rotor at its shaft center; the top of the fan blade shaft center has a light-transmitting part, and the light-transmitting part is located above the display screen.

[0009] The aforementioned cooling fan with speed display function incorporates a display control board and a display screen within the stator module, thus achieving the speed display function. Simultaneously, the display control board, stator, and motor control board are connected in series via conductive pins, which not only securely mounts the display control board but also establishes electrical connection between the display control board and the motor control board, making the display control board an extension functional module of the motor control board. Furthermore, the display control board is located below the light-transmitting portion of the fan blade's axis, achieving a concealed storage effect. When the display screen is operating, the user can observe the displayed speed through the fan blade's axis. This design integrates the display screen and display control board onto the motor's stator module, using conductive pins for mounting, securing, and electrically connecting the display control board. The display screen is hidden within the fan blade's axis, satisfying the user's need for independent speed display of the cooling fan. Moreover, the structure is simple, occupies little space, and does not increase the complexity of internal wiring in electronic equipment.

[0010] In one embodiment, the bottom of the fan bracket is provided with a limiting hole for inserting the end of the conductive pin. During assembly, the limiting hole at the bottom of the fan bracket can limit the end of the conductive pin, improving the installation stability of the conductive pin.

[0011] In one embodiment, the stator includes: an insulating frame connected to a fan bracket, an iron core mounted on the insulating frame, and a coil wound on the iron core; a conductive needle passes through the insulating frame.

[0012] In one embodiment, the number of conductive pins is four and they are evenly spaced around the axis of the stator, providing a relatively balanced support structure while satisfying the requirements for electrical signal transmission.

[0013] In one embodiment, the display screen is a multi-digit LED display. The advantages of LED displays include high brightness, long lifespan, wide viewing angle, stable structure, and resistance to damage.

[0014] In one embodiment, the rotor includes: a positioning frame attached to the inner wall of the shaft of the fan blade and a magnet mounted on the positioning frame.

[0015] In one embodiment, the cooling fan with a speed display function further includes a pad attached to the bottom of the fan bracket. The pad acts as a buffer, reducing noise and vibration during fan operation.

[0016] In one embodiment, the bottom of the fan bracket is provided with a wiring channel; the fixed module also includes a wiring harness for connecting the motor control board; the wiring harness extends to the outside of the fan bracket via the wiring channel. The wiring harness is used to realize the electrical connection between the motor control board and the motherboard of the electronic device, and the wiring channel is used to improve the neatness of the wiring harness. Attached Figure Description

[0017] Figure 1 This is a perspective view of a cooling fan with a speed display function according to an embodiment of the present invention;

[0018] Figure 2 for Figure 1 A three-dimensional view of a cooling fan with a speed display function from another perspective;

[0019] Figure 3 for Figure 1 A half-sectional view of a cooling fan with a speed display function is shown.

[0020] Figure 4 for Figure 3 A magnified view of part A of the cooling fan with speed display function shown;

[0021] Figure 5 for Figure 1 An exploded view of a cooling fan with a speed display function is shown.

[0022] Figure 6 for Figure 5 A perspective view of the fan bracket in a cooling fan with a speed display function;

[0023] Figure 7 for Figure 6 A perspective view of the fan bracket shown from another angle;

[0024] Figure 8 for Figure 5 A perspective view of the stationary module in a cooling fan with a speed display function;

[0025] Figure 9 for Figure 8 A stereoscopic view of the fixed module shown from another perspective;

[0026] Figure 10 for Figure 8 A partial view of the fixed module shown.

[0027] The meanings of the labels in the attached diagram are as follows:

[0028] 100 - Cooling fan with speed display function;

[0029] 10-Fan bracket, 11-Limiting hole, 12-Cable routing channel;

[0030] 20-Stator module, 21-Stator, 211-Insulating frame, 212-Iron core, 22-Conductive pin, 23-Motor control board, 24-Display control board, 25-Display screen;

[0031] 30-Moving module, 31-Fan blade, 311-Mounting slot, 312-Light-transmitting part, 32-Rotor, 321-Positioning frame, 322-Magnet;

[0032] 40-Gasket. Detailed Implementation

[0033] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0034] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0035] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0036] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0037] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0038] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0039] like Figures 1 to 10 As shown, it is a cooling fan 100 with speed display function according to an embodiment of the present invention.

[0040] like Figures 1 to 5 As shown, the cooling fan 100 with a speed display function includes: a fan bracket 10, a fixed module 20 mounted on the fan bracket 10, and a moving module 30 connected to the fixed module 20. The fan bracket 10 serves as the base of the device, providing support. The fixed module 20 generates a changing magnetic field to drive the moving module 30 to rotate, and the moving module 30 generates airflow during rotation. Furthermore, in this design, a display structure for displaying the fan speed is integrated on the fixed module 20.

[0041] The following text, combined with Figures 1 to 10 The cooling fan 100 with speed display function described above will be further explained.

[0042] like Figure 6As shown, in this embodiment, the fan bracket 10 is a bracket structure made of insulating plastic.

[0043] In this embodiment, the motor drive structure required to drive the fan blade 31 adopts a combination structure of inner stator and outer rotor, and the fan blade 31 is integrated in the outer rotor.

[0044] Combination Figure 4 , Figure 8 ,as well as Figure 9 As shown, the stator module 20 includes: a stator 21 connected to the fan bracket 10; multiple conductive pins 22 passing through the stator 21; a motor control board 23 located at the bottom of the stator 21; a display control board 24 located at the top of the stator 21; and a display screen 25 mounted on the display control board 24. The conductive pins 22 connect the motor control board 23 and the display control board 24 in series to the stator 21, and the conductive pins 22 realize the electrical connection between the motor control board 23 and the display control board 25. It should be noted that in order to display the speed of the cooling fan, a speed sensor (not shown) is necessary to detect the speed. This is a common technical method and has not been improved in this solution; therefore, the speed sensor is not described in detail here.

[0045] Combination Figure 4 , Figure 8 ,as well as Figure 9 As shown, in this embodiment, the stator 21 includes: an insulating frame 211 connecting to the fan bracket 10, an iron core 212 (e.g., silicon steel sheet) mounted on the insulating frame 211, and a coil (e.g., enameled wire, not shown) wound on the iron core 212. Conductive pins 22 pass through the insulating frame 211. For example, as... Figure 10 As shown, in this embodiment, the insulating frame 211 is a frame body of insulating plastic. It not only has a slot for receiving the iron core 212, but also a wire groove for winding the coil. At the same time, it also has a through hole for the conductive needle 22 to pass through.

[0046] To improve the installation stability of the equipment, combined with Figure 4 , Figure 6 ,as well as Figure 7 As shown, the bottom of the fan bracket 10 is provided with a limiting hole 11 for inserting the end of the conductive pin 22. During assembly, the limiting hole 11 at the bottom of the fan bracket 10 can limit the end of the conductive pin 22, improving the installation stability of the conductive pin 22. It should be noted that in this embodiment, the limiting hole 11 is a through hole structure; in other embodiments, the limiting hole 11 can also be a blind hole structure.

[0047] In addition, such as Figure 8As shown, in this embodiment, there are four conductive pins 22, which are evenly spaced around the axis of the stator 21, providing a relatively balanced support structure while satisfying the requirements for electrical signal transmission.

[0048] To meet the requirements of the display cooling fan speed, the display screen 25 can be selected from various options in this embodiment, such as a digital tube or an LCD screen. Preferably, in this solution, the display screen 25 is a multi-digit digital tube, such as a four-digit digital tube. The advantages of digital tubes are high brightness, long lifespan, wide viewing angle, stable structure, and resistance to damage.

[0049] In addition, in order to achieve electrical connection between the fixed module 20 and the motherboard of the electronic device, combined with Figure 1 and Figure 7 As shown, in this embodiment, the bottom of the fan bracket 10 may be provided with a wiring channel 12. Correspondingly, the fixed module 20 may also include a wiring harness (not shown) connecting the motor control board 23. The wiring harness extends to the outside of the fan bracket 10 via the wiring channel 12. The wiring harness is used to realize the electrical connection between the motor control board 23 and the motherboard of the electronic device, and the wiring channel 12 is used to improve the neatness of the wiring harness (facilitating cable management).

[0050] Combination Figure 5 and Figure 6 As shown, the moving module 30 includes a rotor 32 sleeved on the outer periphery of the stator 21 and a fan blade 31 connected to the rotor 32. The fan blade 31 has a mounting groove 311 at its shaft center to accommodate the rotor 32. The top of the fan blade 31 has a light-transmitting part 312, and the light-transmitting part 312 is located above the display screen 25.

[0051] like Figure 5 As shown, in this embodiment, the rotor 32 includes: a positioning frame 321 attached to the inner side wall of the shaft of the fan blade 31 and a magnet 322 mounted on the positioning frame 321.

[0052] In this embodiment, the fan blade 31 can be a one-piece molded structure made of a light-transmitting material. For example, in this embodiment, the fan blade 31 is a black or blue semi-transparent material structure. When the display screen 25 is off, the display screen 25 is blocked by the top cover of the shaft of the fan blade 31. When the display screen 25 is on, the light emitted by the display screen 25 can penetrate the top cover of the shaft of the fan blade 31, allowing the user to read the rotation speed displayed on the display screen 25.

[0053] In other embodiments, the fan blade 31 may also have a light-transmitting portion 312 only in the central region.

[0054] Brief description of working principle:

[0055] like Figure 4As shown, a display control board 24 and a display screen 25 are installed in the stator module 20 to realize the speed display function. Simultaneously, the display control board 24, stator 21, and motor control board 23 are connected in series via conductive pins 22. This not only secures the display control board 24 but also establishes an electrical connection between the display control board 24 and the motor control board 23, making the display control board 24 an extension functional module of the motor control board 23. Furthermore, the display control board 24 is located below the light-transmitting portion 312 of the fan blade 31's axis, achieving a concealed storage effect. When the display screen 25 is operating, the user can observe the speed displayed on the screen 25 through the axis of the fan blade 31.

[0056] Furthermore, in order to improve the stability of the cooling fan during operation, such as Figure 2 and Figure 5 As shown, in this embodiment, the cooling fan 100 with a speed display function further includes a pad 40 attached to the bottom of the fan bracket 10. The pad 40 can act as a buffer, reducing noise and vibration when the cooling fan is running. For example, the pad 40 is an elastic silicone pad.

[0057] The aforementioned cooling fan 100 with speed display function integrates the display screen 25 and the display control board 24 on the fixed module 20 of the motor. The display control board 24 is installed, fixed and electrically connected by the conductive pin 22. Moreover, the display screen 25 is hidden at the axis of the fan blade 31, which meets the user's need for separate display of the speed of the cooling fan. It has a simple structure, occupies little space and does not increase the difficulty of wiring inside the electronic equipment.

[0058] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0059] The above embodiments only illustrate preferred implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A cooling fan with a speed display function, characterized in that, include: Fan bracket; A fixed module mounted on the fan bracket; The stator module includes: a stator connected to the fan bracket, multiple conductive pins passing through the stator, a motor control board located at the bottom of the stator, a display control board located at the top of the stator, and a display screen mounted on the display control board; the conductive pins connect the motor control board and the display control board in series on the stator, and the conductive pins provide electrical connection between the motor control board and the display control board; and A moving module is connected to the fixed module; the moving module includes: a rotor sleeved on the outer periphery of the stator and a fan blade connected to the rotor; the fan blade has a mounting groove at its axis to receive the rotor; the top of the fan blade has a light-transmitting part, and the light-transmitting part is located above the display screen.

2. The cooling fan with speed display function according to claim 1, characterized in that, The bottom of the fan bracket is provided with a limiting hole for inserting the end of the conductive needle.

3. The cooling fan with speed display function according to claim 1, characterized in that, The stator includes: an insulating frame connected to the fan bracket, an iron core mounted on the insulating frame, and a coil wound on the iron core; the conductive needle passes through the insulating frame.

4. The cooling fan with speed display function according to claim 1, characterized in that, The number of conductive needles is four, and they are evenly spaced around the axis of the stator.

5. The cooling fan with speed display function according to claim 1, characterized in that, The display screen is a multi-digit LED tube.

6. The cooling fan with speed display function according to claim 1, characterized in that, The rotor includes: a positioning frame attached to the inner wall of the shaft of the fan blade and a magnet mounted on the positioning frame.

7. The cooling fan with speed display function according to claim 1, characterized in that, Also includes: A pad is attached to the bottom of the fan bracket.

8. The cooling fan with speed display function according to claim 1, characterized in that, The bottom of the fan bracket is provided with a wiring channel; the fixed module also includes a wiring harness for connecting the motor control board; the wiring harness extends to the outside of the fan bracket via the wiring channel.

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