Solid-state fan driven based on magnetostrictive effect and working method of solid-state fan

Abstract

The invention discloses a solid-state fan driven based on the magnetostrictive effect and a working method of the solid-state fan. The invention discloses a magnetostrictive solid-state wind power generation device which comprises a wind generation unit, a magnet exciting coil, a shell, a cover plate and a temperature monitoring and magnetic field adjusting module, adopts a solid-state driving framework without an impeller and a bearing, replaces mechanical movement of a traditional fan with periodic deformation of magnetostrictive materials, and solves the technical problems that the traditional fan is large in size, high in noise and short in service life. The invention has remarkable advantages in the aspects of miniaturization, low noise, high reliability, wide temperature range, dynamic response and the like, and provides a novel heat dissipation scheme for high-power electronic equipment such as a 5G base station, an AI computing power chip, a radar and the like.

Description

Technical Field

[0001] The present invention belongs to the technical field of heat dissipation of electronic equipment, and in particular relates to a solid-state fan driven by a magnetostrictive effect and a working method thereof. Background Art

[0002] The heat dissipation requirements of electronic devices are growing exponentially with increasing computing power and power density. As the demand for efficient, reliable, and miniaturized heat dissipation solutions in fields such as 5G base stations, AI computing chips, and new energy vehicles continues to evolve, the extreme military environment places even more stringent demands on heat dissipation technology than in civilian applications.

[0003] Existing fans in air cooling technology face multiple limitations. Traditional rotary fans rely on bearings and motor structures. Core components such as impellers, bearings, and gears inevitably wear out during high-frequency operation, leading to reduced airflow, increased vibration, and even sudden failure. Common laptop computer forced-air coolers are noisy at high speeds, severely impacting user experience. Furthermore, traditional fans face energy efficiency bottlenecks. Their power consumption accounts for a significant portion of the total energy consumption of electronic equipment. Furthermore, in harsh environments such as dust and salt spray, dust easily accumulates on fan blades, reducing airflow by 30%. In space-constrained devices, the installation space requirements of traditional fans conflict with the trend toward thinner and lighter equipment. Mechanical inertia also results in delayed response times, taking seconds to tens of seconds from startup to full load, making it difficult to respond to dynamic load changes. In data centers and precision equipment, where heat dissipation response is critical, this delay can lead to overheating and frequency throttling, impacting operational efficiency. In terms of energy efficiency, traditional fans are limited by mechanical friction loss and airflow turbulence, and their energy utilization rate is generally less than 60%. A large amount of electrical energy is converted into useless heat energy and noise.

[0004] These long-standing drawbacks are creating an urgent market demand for new, more efficient, reliable and adaptable cooling solutions. Summary of the Invention

[0005] The purpose of the present invention is to provide a solid-state fan driven by the magnetostrictive effect and its working method, so as to solve the shortcomings of traditional fans such as large size, high noise, short service life, poor environmental adaptability, and slow response to changes in heat sources, and further improve the integration, miniaturization and reliability of electronic equipment.

[0006] To achieve the purpose of the present invention, on the one hand, the present invention provides a solid-state wind turbine driven by magnetostrictive effect, comprising a wind generating unit, an excitation coil, a housing, a cover plate, a temperature monitoring and magnetic field regulating module;

[0007] The air generating unit is used to draw cold air into the fan, so that the cold air flows toward the heat source, forming a wind field with a certain flow rate and flow rate, realizing the generation of airflow and driving and regulating the air;

[0008] The excitation coil is used to apply an alternating magnetic field to the magnetostrictive material inside the wind generating unit;

[0009] The housing is used to provide a mounting carrier and protection for the fan, and can also guide the airflow after heat exchange with the heat source to be discharged to the environment;

[0010] The cover plate is used to provide protection for the fan, serve as an inspection window, and also serve as a cold air input channel to provide a low-temperature air flow inlet for the solid-state fan;

[0011] The temperature monitoring and magnetic field regulation module is used to dynamically adjust the excitation parameters of the excitation coil according to the real-time heat load.

[0012] The air-generating unit is installed in the shell by means of a snap-fit, the excitation coil is wound around the outside of the air-generating unit, and is connected to the temperature monitoring and magnetic field regulation module by a wire, the temperature monitoring and magnetic field regulation module is fixedly installed on one side inside the shell, and the cover plate is installed on the upper part of the shell.

[0013] In another aspect, the present invention provides a method for operating a solid-state blower driven by magnetostrictive effect, comprising the following steps:

[0014] Step 1: The excitation coil applies a magnetic field to the magnetostrictive material in the air-generating unit. The magnetostrictive material undergoes periodic deformation as the magnetic field changes, and drives the flexible vibrating blade to perform periodic vertical bending motion within the cavity of the air-generating unit. When the magnetostrictive material is elongated by the alternating magnetic field, the flexible vibrating blade bends downward accordingly, the volume of the lower cavity decreases, and the pressure increases. The air in the lower cavity is discharged from the air-generating unit through the lower one-way air outlet, thereby generating airflow. At the same time, the volume of the upper cavity increases, and the pressure decreases. The air in the environment is drawn into the air-generating unit through the upper one-way air inlet.

[0015] Step 2: When the magnetostrictive material shortens due to the alternating magnetic field, the flexible vibrating blade bends upward accordingly. At this time, the volume of the upper cavity decreases and the pressure increases. The air in the upper cavity is discharged from the air-generating unit through the right one-way air outlet and the right cavity. At the same time, the volume of the lower cavity increases and the pressure decreases. After the ambient air is sucked into the air-generating unit through the left one-way air inlet, the air-generating unit continuously draws the ambient air into the cavity and blows it toward the heat source in a predetermined direction.

[0016] Step 3: After the above steps, the air-generating unit draws ambient air into the solid-state fan through the air inlet grille on the cover plate, and then ejects the air from the air outlet grille at the lower portion of the housing to the heat dissipation surface of the heat source, completing the directional guidance and flow transmission of the air and realizing forced convection heat exchange on the heat dissipation surface;

[0017] Step 4: After the heat exchange is completed, the airflow is constrained by the outlet air duct integrated in the housing and then discharged to the environment along the preset side air duct, completing the circulation operation of the fan and the ambient air;

[0018] Step 5: After receiving the heat source temperature data signal, the temperature monitoring and magnetic field regulation module uses the built-in heat load-magnetic field mapping model to determine the magnetic field adjustment parameters. When the heat load changes, the microcontroller drives the change of the excitation parameters of the excitation coil, thereby causing the deformation size and frequency of the magnetostrictive material to change accordingly, driving the amplitude and vibration frequency of the flexible vibrating blade to change, and ultimately completing the dynamic adjustment of the air volume and heat load.

[0019] Compared with the prior art, the significant progress of the present invention lies in: (1) the structure of the present invention is simple and compact, and it can be directly integrated and installed on the surface of the heat source. The jet impingement heat exchange method of vertical air inlet increases the degree of air turbulence and reduces the flow boundary layer effect commonly seen in traditional fan heat dissipation; (2) the present invention abandons the easily worn parts such as bearings and impellers in traditional fans, fundamentally eliminating the risks of lubrication failure and dynamic balance offset, and the magnetostrictive material has good stability and fatigue resistance, strong environmental adaptability, and can work in a wide temperature range and harsh environmental conditions, and can achieve high-reliability operation throughout the life cycle; (3) The present invention adopts a solid-state drive architecture without impellers and bearings, and replaces the mechanical movement of traditional fans with the periodic deformation of magnetostrictive materials. Relying on the real-time controllability of the magnetostrictive effect, when an alternating current is passed through the coil, the magnetic field changes and causes the magnetic domain orientation of the material lattice to adjust rapidly, resulting in a reversible deformation of the material length that starts in nanoseconds and reaches a peak in microseconds. The fan can achieve dynamic adjustment of the blade amplitude and frequency through precise adjustment of the magnetic field, so that the fan can quickly respond to thermal load fluctuations, providing a more refined thermal management solution for electronic equipment, effectively avoiding the risk of local overheating and optimizing energy consumption.

[0020] In order to more clearly illustrate the functional characteristics and structural parameters of the present invention, further description is given below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0022] Figure 1It is a schematic diagram of the composition of the present invention;

[0023] Figure 2 is an internal cross-sectional view of the present invention, in which arrows indicate the direction of airflow, and the dotted area indicates the relative installation position of the present invention and the heat source;

[0024] Figure 3 Schematic diagram of the internal structure of the air-generating unit of the present invention when the magnetostrictive material is stretched and the flexible vibrating blades are bent downward, with arrows indicating the direction of airflow;

[0025] Figure 4 Schematic diagram of the internal structure of the wind generating unit of the present invention when the magnetostrictive material is shortened and the flexible vibrating blades are bent upward, with arrows in the figure indicating the direction of airflow;

[0026] Figure 5 It is a schematic diagram of the shell structure of the present invention.

[0027] The reference numbers in the figure are: 1-air generating unit, 2-excitation coil, 3-housing, 4-cover, 5-temperature monitoring and magnetic field regulation module, 101-magnetostrictive material, 102-flexible vibrating blade, 103-upper cavity, 104-lower cavity, 105-left cavity, 106-right cavity, 107-upper one-way air inlet, 108-lower one-way air outlet, 109-left one-way air inlet, 110-right one-way air outlet. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0029] The present invention is a solid-state fan driven by magnetostrictive effect, combined with Figure 1 , including a wind generating unit 1, an excitation coil 2, a housing 3, a cover 4, and a temperature monitoring and magnetic field regulating module 5;

[0030] The air generating unit 1 is used to draw cold air into the fan, so that the cold air flows toward the heat source, forming a wind field with a certain flow rate and flow rate, realizing the generation of airflow and driving and regulating the air;

[0031] The excitation coil 2 is used to apply an alternating magnetic field to the magnetostrictive material inside the wind generating unit 1;

[0032] The housing 3 is used to provide a mounting carrier and protection for the fan, and can also guide the airflow after heat exchange with the heat source to be discharged to the environment;

[0033] The cover plate 4 is used to provide protection for the fan, serve as an inspection window, and also serve as a cold air input channel to provide a low-temperature air inlet for the solid-state fan;

[0034] The temperature monitoring and magnetic field adjustment module 5 is used to dynamically adjust the excitation parameters of the excitation coil 2 according to the real-time heat load.

[0035] The air-generating unit 1 is installed in the shell 3 by snapping, the excitation coil 2 is wound around the outside of the air-generating unit 1, and is connected to the temperature monitoring and magnetic field regulation module 5 by a wire, the temperature monitoring and magnetic field regulation module 5 is fixedly installed on one side inside the shell 3, and the cover plate 4 is installed on the upper part of the shell 3.

[0036] The air generating unit 1 includes a magnetostrictive material 101, a flexible vibrating blade 102, an upper cavity 103, a lower cavity 104, a left cavity 105, a right cavity 106, an upper one-way air inlet 107, a lower one-way air outlet 108, a left one-way air inlet 109, and a right one-way air outlet 110;

[0037] The magnetostrictive material 101 is vertically arranged in the middle section of the upper one-way air inlet 107 and is welded and fixedly connected to the flexible vibrating blade 102. The flexible vibrating blade 102 is installed between the upper cavity 103 and the lower cavity 104. The upper cavity 103 is located above the flexible vibrating blade 102, and the lower cavity 104 is located below the flexible vibrating blade 102. The left cavity 105 is arranged on the left side of the left one-way air inlet 109. The gas enters the lower cavity from above the left cavity 105 through the left one-way air inlet 109. body 104, the right cavity 106 is located on the right side of the right one-way air outlet 110, the gas enters the upper cavity 103 through the lower cavity 104, and then enters the right cavity 106 through the right one-way air outlet 110 and is finally discharged from the right cavity 106, the upper one-way air inlet 107 is arranged above the upper cavity 103, the lower one-way air outlet 108 is arranged below the lower cavity 104, the left one-way air inlet 109 is located on the left side of the lower cavity 104, and the right one-way air outlet 110 is located on the right side of the upper cavity 103.

[0038] The bottom of the housing 3 is provided with an air outlet grille and an integrated outlet air duct.

[0039] The cover plate 4 is detachable and is also provided with an air intake grille.

[0040] The temperature monitoring and magnetic field regulation module 5 has a built-in heat load-magnetic field mapping model, which includes a microcontroller; the model is used to calculate the magnetic field adjustment parameters to complete the dynamic adjustment related to air volume and heat load, and the microcontroller is used to change the excitation parameters of the excitation coil.

[0041] The housing 3 is made of a magnetic field shielding material with high electrical conductivity.

[0042] The high-conductivity magnetic field shielding material is copper, aluminum, or copper, nickel, silver, etc. plated on the surface of plastic or ceramic, and is suitable for shielding high-frequency magnetic fields.

[0043] The magnetostrictive material 101 is made of terbium-dysprosium iron alloy Terfenol-D, iron-gallium alloy Galfeno, amorphous alloy Metglas, or MnCoSi-based alloy.

[0044] The present invention is a working method of a solid-state fan driven by magnetostrictive effect, combined with Figure 2 , including the following steps:

[0045] Step 1: The excitation coil 2 applies a magnetic field to the magnetostrictive material 101 in the wind generating unit 1. The magnetostrictive material 101 undergoes periodic deformation as the magnetic field changes, and drives the flexible vibrating blade 102 to perform periodic vertical bending motion in the cavity of the wind generating unit 1. Figure 3 When the magnetostrictive material 101 is elongated by the alternating magnetic field, the flexible vibrating blade 102 bends downward, the volume of the lower cavity 104 decreases, and the pressure increases. The air in the lower cavity 104 is discharged from the air-generating unit 1 through the lower one-way air outlet 108, thereby generating airflow. At the same time, the volume of the upper cavity 103 increases, and the pressure decreases. The air in the environment is sucked into the air-generating unit 1 through the upper one-way air inlet 107.

[0046] Step 2: Combine Figure 4 When the magnetostrictive material 101 is shortened by the alternating magnetic field, the flexible vibrating blade 102 bends upward accordingly. At this time, the volume of the upper cavity 103 decreases and the pressure increases. The air in the upper cavity 103 is discharged from the air generating unit 1 through the right one-way air outlet 110 and the right cavity 106. At the same time, the volume of the lower cavity 104 increases and the pressure decreases. After the ambient air is sucked into the air generating unit 1 through the left one-way air inlet 109, the air generating unit 1 continuously draws the ambient air into the cavity and blows it toward the heat source side in a predetermined direction.

[0047] Step 3: After the above steps, the air generating unit 1 draws the ambient air into the solid-state fan through the air intake grille on the cover plate 4. Figure 5, and then the air is ejected from the air outlet grille at the lower part of the shell 3 to the heat dissipation surface of the heat source, completing the directional guidance and flow transmission of the air, and realizing forced convection heat exchange on the heat dissipation surface;

[0048] Step 4: The airflow that has completed the heat exchange is constrained by the outlet air duct integrated in the housing 3 and then discharged to the environment along the preset side air duct, completing the circulation operation of the fan and the ambient air;

[0049] Step 5: After receiving the heat source temperature data signal, the temperature monitoring and magnetic field regulation module 5 uses the built-in heat load-magnetic field mapping model to determine the magnetic field adjustment parameters. When the heat load changes, the microcontroller drives the change of the excitation parameters of the excitation coil, thereby causing the deformation size and frequency of the magnetostrictive material 101 to change accordingly, driving the amplitude and vibration frequency of the flexible vibrating blade 102 to change, ultimately completing the dynamic adjustment of the air volume and heat load.

[0050] Example

[0051] The processed magnetostrictive material sheet is metallurgically bonded to the surface of the flexible vibrating blade through a brazing process. The magnetostrictive material is selected from Terfenol-D, a terbium-dysprosium-iron alloy with high deformation ability and response speed. The vibrating blade integrated with the magnetostrictive material is installed in the wind generating unit 1.

[0052] The excitation coil 2 is installed at a suitable position around the wind generating unit 1 through a fixed structure to ensure that the alternating magnetic field generated by the coil can act evenly on the magnetostrictive material.

[0053] Through the thermodynamic calculation model, the heat source of the electronic equipment is comprehensively analyzed to determine the heat load of each area. Combined with the fluid dynamics simulation results, the spacing and layout between the air generating units 1 are adjusted. Figure 1 , the distribution of air-generating units corresponds one to one with the hot spots of heat sources; according to the determined layout plan, use a laser marking instrument or other marking tools to accurately mark the installation position of the air-generating unit 1, and install the air-generating unit 1 inside the shell 5 through a snap, ensuring that the positions of the air-generating unit 1 and the inlet and outlet grilles on the shell and cover plate accurately correspond to each other, ensuring that the air flow can be smoothly inhaled from the cover plate air inlet grille, and ejected from the shell outlet grille after passing through the air-generating unit 1.

[0054] Connect the temperature monitoring and magnetic field regulation module 5 to the temperature sensor at the heat source, and connect the temperature monitoring and magnetic field regulation module 5 to the excitation coil 2 to ensure that the control signal can be accurately transmitted to achieve the adjustment of the excitation parameters of the excitation coil.

[0055] Check the installation of each component to ensure that all connections are firm and there is no looseness or misalignment, and complete the assembly of the solid-state blower.

[0056] Furthermore, the excitation parameters of the excitation coil, including the excitation current magnitude and frequency, can be set based on the thermal management requirements of the electronic device and the design parameters of the solid-state fan. Different types of magnetostrictive materials can be selected. Furthermore, the number and distribution of air-generating units 1 can be refined by combining thermodynamic calculation models, fluid dynamics simulation results, and spatial dimension parameters. The spacing between air-generating units can also be optimized, and the oscillation periods of the blades of each unit can be coordinated to achieve an interference enhancement effect in the spatial dimension of the airflow generated by each unit, thereby enhancing directional flow guidance and improving fan efficiency. This is also within the scope of the present invention.

[0057] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0058] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A solid-state fan driven by magnetostrictive effect, characterized in that: It comprises an air generating unit (1), an excitation coil (2), a housing (3), a cover plate (4), and a temperature monitoring and magnetic field regulating module (5); The air generating unit (1) is used to draw cold air into the fan, so that the cold air flows toward the heat source, forming a wind field with a certain flow rate and flow rate, realizing the generation of airflow and driving and regulating the air; The excitation coil (2) is used to apply an alternating magnetic field to the magnetostrictive material inside the wind generating unit (1); The housing (3) is used to provide a mounting carrier and protection for the fan, and can also guide the airflow after heat exchange with the heat source to be discharged to the environment; The cover plate (4) is used to provide protection for the fan, serve as an inspection window, and also serve as a cold air input channel to provide a low-temperature air flow inlet for the solid-state fan; The temperature monitoring and magnetic field regulating module (5) is used to dynamically adjust the excitation parameters of the excitation coil (2) according to the real-time heat load.

2. The solid-state blower driven by magnetostrictive effect according to claim 1, characterized in that: The air generating unit (1) is mounted in the housing (3) by snapping, the excitation coil (2) is wound around the outside of the air generating unit (1), and is connected to the temperature monitoring and magnetic field regulating module (5) by a wire, the temperature monitoring and magnetic field regulating module (5) is fixedly mounted on one side inside the housing (3), and the cover plate (4) is mounted on the upper part of the housing (3).

3. The solid-state blower driven by magnetostrictive effect according to claim 1, characterized in that: The air generating unit (1) comprises a magnetostrictive material (101), a flexible vibrating blade (102), an upper cavity (103), a lower cavity (104), a left cavity (105), a right cavity (106), an upper one-way air inlet (107), a lower one-way air outlet (108), a left one-way air inlet (109), and a right one-way air outlet (110); The magnetostrictive material (101) is vertically arranged in the middle section of the upper one-way air inlet (107) and is fixedly connected to the flexible vibration blade (102). The flexible vibration blade (102) is installed between the upper cavity (103) and the lower cavity (104). The upper cavity (103) is located above the flexible vibration blade (102), the lower cavity (104) is located below the flexible vibration blade (102), and the left cavity (105) is arranged at the upper cavity (103). The left side one-way air inlet (109) is located on the left side, the right cavity (106) is located on the right side of the right one-way air outlet (110), the upper one-way air inlet (107) is arranged above the upper cavity (103), and the lower one-way air outlet (108) is arranged below the lower cavity (104), the left one-way air inlet (109) is located on the left side of the lower cavity (104), and the right one-way air outlet (110) is located on the right side of the upper cavity (103).

4. The solid-state blower driven by magnetostrictive effect according to claim 1, characterized in that: An air outlet grille is provided at the bottom of the housing (3), and an outlet air duct is also integrated therein.

5. The solid-state blower driven by magnetostrictive effect according to claim 1, characterized in that: The cover plate (4) is detachable and is also provided with an air intake grille.

6. The solid-state blower driven by magnetostrictive effect according to claim 1, characterized in that: The temperature monitoring and magnetic field regulation module (5) has a built-in heat load-magnetic field mapping model, which includes a microcontroller; the model is used to calculate magnetic field adjustment parameters to complete the dynamic adjustment related to air volume and heat load, and the microcontroller is used to change the excitation parameters of the excitation coil.

7. The solid-state blower driven by magnetostrictive effect according to claim 5, characterized in that: The shell (3) is made of a magnetic field shielding material with high electrical conductivity.

8. The solid-state blower driven by magnetostrictive effect according to claim 6, characterized in that: The high-conductivity magnetic field shielding material is copper, aluminum, or copper, nickel, or silver plated on the surface of plastic or ceramic.

9. The solid-state blower driven by magnetostrictive effect according to claim 3, characterized in that: The magnetostrictive material (101) is made of terbium-dysprosium iron alloy Terfenol-D or iron-gallium alloy Galfeno or amorphous alloy Metglas or MnCoSi based alloy.

10. The operating method of a solid-state wind turbine driven by magnetostrictive effect according to any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: The excitation coil (2) applies a magnetic field to the magnetostrictive material (101) in the air generating unit (1). The magnetostrictive material (101) undergoes periodic deformation as the magnetic field changes, and drives the flexible vibrating blade (102) to perform periodic vertical bending movement in the cavity of the air generating unit (1). When the magnetostrictive material (101) is extended by the alternating magnetic field, the flexible vibrating blade (102) bends downward, and the volume of the lower cavity (104) decreases and the pressure increases. The air in the lower cavity (104) is discharged from the air generating unit (1) through the lower one-way air outlet (108), thereby generating an airflow. At the same time, the volume of the upper cavity (103) increases and the pressure decreases, and the air in the environment is sucked into the air generating unit (1) through the upper one-way air inlet (107). Step 2: When the magnetostrictive material (101) is shortened by the alternating magnetic field, the flexible vibrating blade (102) bends upward accordingly. At this time, the volume of the upper cavity (103) decreases and the pressure increases. The air in the upper cavity (103) is discharged from the air generating unit (1) through the right one-way air outlet (110) and the right cavity (106). At the same time, the volume of the lower cavity (104) increases and the pressure decreases. After the ambient air is sucked into the air generating unit (1) through the left one-way air inlet (109), the air generating unit (1) continuously sucks the ambient air into the cavity and blows it toward the heat source side in a predetermined direction. Step 3: After the above steps, the air generating unit (1) draws ambient air into the solid-state fan through the air inlet grille on the cover plate (4), and then ejects the air from the air outlet grille at the lower portion of the housing (3) to the heat dissipation surface of the heat source, thereby completing the directional guidance and flow transmission of the air and realizing forced convection heat exchange on the heat dissipation surface; Step 4: The airflow that has completed the heat exchange is constrained by the outlet air duct integrated in the housing (3) and then discharged to the environment along the preset side air duct, completing the circulation operation of the fan and the ambient air; Step 5: After receiving the heat source temperature data signal, the temperature monitoring and magnetic field adjustment module (5) uses a built-in heat load-magnetic field mapping model to determine the magnetic field adjustment parameters; when the heat load changes, the microcontroller drives the excitation coil excitation parameters to change, thereby causing the deformation size and frequency of the magnetostrictive material (101) to change accordingly, driving the amplitude and vibration frequency of the flexible vibrating blade (102) to change, and finally completing the dynamic adjustment of the air volume and heat load.

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