Ion wind heat dissipation mechanism and electronic device

Abstract

The embodiment of the application provides an ion wind heat dissipation mechanism and electronic equipment, and relates to the technical field of heat exchange equipment. The ion wind heat dissipation mechanism comprises: a positive corona emitter; a negative ion collector electrode, the negative ion collector electrode is arranged opposite to the positive corona emitter; a heat sink, the heat sink is arranged between the positive corona emitter and the negative ion collector electrode; and a neutralization assembly, the neutralization assembly is used for generating negative corona electrons, so that the negative corona electrons and positive corona electrons on the surface of the heat sink are neutralized. The ion wind heat dissipation mechanism and the electronic equipment can prolong the service life of the ion wind heat dissipation mechanism.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of heat exchange equipment, and particularly relates to an ion wind heat dissipation mechanism and electronic equipment. BACKGROUND

[0002] The ion wind heat dissipation mechanism is a device for dissipating heat by using ion wind generated by corona discharge. The ion wind heat dissipation mechanism has no mechanical moving parts, is low in noise and high in heat dissipation efficiency, and is particularly suitable for occasions such as electronic equipment that require high-efficiency heat dissipation and have limited space.

[0003] In the related art, the ion wind heat dissipation mechanism includes a positive corona emitter and a negative ion collector. A heat sink is arranged between the positive corona emitter and the negative ion collector. By applying a high voltage between the positive corona emitter and the negative ion collector, air is ionized to generate positive ions and positive corona electrons. The positive ions move to the negative ion collector under the action of an electric field, while the positive corona electrons return to the positive corona emitter. The movement of the positive ions forms ion wind, thereby taking away heat transferred by the heat sink to achieve a heat dissipation effect.

[0004] However, part of the positive corona electrons accumulates on the heat sink in the process of returning to the positive corona emitter because the heat sink is made of metal and has a certain conductivity. The accumulation of electric charges can continuously increase the electrostatic field strength on the surface of the heat sink, which can cause the insulating part of the heat sink to fail, thereby shortening the service life of the ion wind heat dissipation mechanism. SUMMARY

[0005] Embodiments of the present application provide an ion wind heat dissipation mechanism and electronic equipment to solve the technical problem that in the related art, positive corona electrons of the ion wind heat dissipation mechanism accumulate on a heat sink in the process of returning to a positive corona emitter, thereby causing the insulating part of the heat sink to fail and shortening the service life of the ion wind heat dissipation mechanism.

[0006] In a first aspect, embodiments of the present application provide an ion wind heat dissipation mechanism, comprising:

[0007] a positive corona emitter;

[0008] a negative ion collector, the negative ion collector being arranged opposite to the positive corona emitter;

[0009] a heat sink, the heat sink being arranged between the positive corona emitter and the negative ion collector;

[0010] a neutralization assembly, the neutralization assembly being configured to generate negative corona electrons to neutralize the positive corona electrons on the surface of the heat sink.

[0011] In some embodiments, the neutralizing assembly comprises a negative corona emitter and a positive ion collector, the heat sink is arranged between the negative corona emitter and the positive ion collector, the negative corona emitter is arranged opposite to the positive ion collector, and the negative corona emitter is configured to discharge to generate negative corona electrons.

[0012] In some embodiments, at least one of the positive corona emitter and the negative corona emitter comprises a first connecting portion and a plurality of second connecting portions, one end of each of the second connecting portions is connected to the first connecting portion, and the other end of each of the second connecting portions is pointed.

[0013] In some embodiments, at least one of the positive corona emitter and the negative corona emitter is needle-shaped, wire-shaped or net-shaped, and / or at least one of the positive ion collector and the negative ion collector is flat-shaped, cylindrical or net-shaped.

[0014] In some embodiments, at least one of the positive corona emitter and the negative corona emitter is provided with a corrosion-resistant layer.

[0015] In some embodiments, the negative ion collector is a corrosion-resistant collector, and / or the positive ion collector is provided with an oxidation-resistant coating.

[0016] In some embodiments, the heat sink comprises a plurality of boron nitride heat dissipation fins arranged at intervals.

[0017] In some embodiments, each of the boron nitride heat dissipation fins is provided with an ozone catalytic layer.

[0018] In some embodiments, a trajectory changing assembly is further included, and the trajectory changing assembly is configured to drive charged particles between the negative ion collector and the positive corona emitter and between the negative corona emitter and the positive ion collector to move along a spiral trajectory or a wave trajectory.

[0019] In some embodiments, the trajectory changing assembly comprises a first magnet and a second magnet, the first magnet and the second magnet are arranged on opposite sides of the heat sink, and the first magnet and the second magnet have opposite magnetic properties.

[0020] In a second aspect, the embodiments of the present application provide an electronic device, comprising a device body and the ion wind heat dissipation mechanism arranged on the device body.

[0021] The embodiment of the present application provides an ion wind heat dissipation mechanism and electronic equipment, the ion wind heat dissipation mechanism provided by the present application, by adopting the setting of neutralizing assembly, when high voltage is applied between positive corona emitter and negative ion collector, air is ionized to generate positive ion and positive corona electron, positive ion moves to negative ion collector under the action of electric field, and positive corona electron returns to positive corona emitter and can accumulate on the radiator, at this time, the neutralizing assembly can generate negative corona electron, because the positive corona electron has negative charge, and the negative corona electron has positive charge, so that the positive corona electron on the radiator and the negative corona electron generated by the neutralizing assembly are neutralized, so that the positive corona electron and the negative corona electron are offset each other, the neutralization process not only prevents the insulation failure and short circuit problem caused by charge accumulation on the surface of the radiator, but also reduces the phenomenon of static field enhancement caused by charge accumulation, reduces the corrosion and pollution of the positive corona emitter and the negative ion collector, prolongs the service life of the radiator, thereby prolonging the service life of the ion wind heat dissipation mechanism. BRIEF DESCRIPTION OF DRAWINGS

[0022] The drawings incorporated into the specification and forming part of the specification, show embodiments consistent with the present application, and together with the specification, serve to explain the principles of the present application.

[0023] Figure 1 Structure diagram of the ion wind heat dissipation mechanism provided by the present application Figure 1 ;

[0024] Figure 2 For Figure 1 Structure diagram of another angle

[0025] Figure 3 Structure diagram of the ion wind heat dissipation mechanism provided by the present application Figure 2 ;

[0026] Figure 4 Structure diagram of the positive corona emitter of the ion wind heat dissipation mechanism provided by the present application

[0027] Figure 5 Structure diagram of the negative corona emitter of the ion wind heat dissipation mechanism provided by the present application

[0028] Figure 6 Structure diagram of the positive corona emitter of the ion wind heat dissipation mechanism provided by the present application

[0029] Figure 7 Structure diagram of the negative corona emitter of the ion wind heat dissipation mechanism provided by the present application

[0030] Figure 8 Structure diagram of the positive corona emitter of the ion wind heat dissipation mechanism provided by the present application

[0031] Figure 9 Structure diagram of the heat sink of the ion wind heat dissipation mechanism provided in the present application;

[0032] Figure 10 Structure diagram of the cross section of the boron nitride heat dissipation fin of the ion wind heat dissipation mechanism provided in the present application.

[0033] Explanation of reference signs:

[0034] 100, positive corona emitter

[0035] 200, negative ion collector

[0036] 300, heat sink; 310, boron nitride heat dissipation fin; 320, ozone catalytic layer

[0037] 400, neutralization assembly; 410, negative corona emitter; 420, positive ion collector; 421, anti-oxidation coating

[0038] 500, first connecting part

[0039] 600, second connecting part

[0040] 700, corrosion-resistant layer

[0041] 800, trajectory changing assembly; 810, first magnet; 820, second magnet

[0042] 900, bottom plate

[0043] The specific embodiments of the present application have been shown by the above-mentioned drawings, and will be described in more detail hereinafter. These drawings and textual descriptions are not intended to limit the scope of the concept of the present application by any means, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0044] The exemplary embodiments will be described in detail herein with reference to the accompanying drawings. The following description is made with reference to the accompanying drawings in which like reference numerals represent like elements, unless otherwise indicated. The following exemplary embodiments described in the following detailed description are not meant to be limiting in terms of the scope of the application, but merely to be illustrative in terms of the various aspects of the application as detailed in the appended claims.

[0045] In the related art, the ion wind heat dissipation mechanism is a heat dissipation device, which comprises a positive corona emitter and a negative ion collector, and a heat sink is further arranged between the positive corona emitter and the negative ion collector. When a high voltage is applied between the positive corona emitter and the negative ion collector, gas molecules in the air will be ionized to generate positive ions and positive corona electrons with negative charges. Under the action of the electric field, the positive ions are pushed to the negative ion collector, while the positive corona electrons return to the positive corona emitter. The directional movement of the positive ions forms an "ion wind", which can effectively take away the heat transferred by the heat sink, thereby realizing high-efficiency heat dissipation. The heat sink plays a key role in this process, which transfers the heat generated by the device to the surrounding air, and the ion wind accelerates this heat transfer process to ensure that the device remains within the appropriate temperature range during operation.

[0046] However, during the operation of the ion wind heat dissipation mechanism, part of the positive corona electrons may adhere and accumulate on the surface of the heat sink during their return to the positive corona emitter due to the action of the electric field or the conductivity of the heat sink made of metal. With the passage of time, the accumulation of these electrons will gradually increase the strength of the electrostatic field on the surface of the heat sink. The increase in the strength of the electrostatic field may negatively affect the insulation performance of the heat sink, causing the insulation part to gradually fail. Once the insulation part fails, the heat sink may not work normally, and even may cause short circuit and other faults, thereby shortening the overall service life of the ion wind heat dissipation mechanism.

[0047] The technical solutions of the present application and how the technical solutions of the present application solve the above technical problems will be described in detail below with specific examples. The following specific examples can be combined with each other, and the same or similar concepts or processes may not be described again in some examples. The embodiments of the present application will be described below with reference to the accompanying drawings.

[0048] In combination Figures 1 to 3 , the embodiments of the present application provide an ion wind heat dissipation mechanism, comprising:

[0049] a positive corona emitter 100;

[0050] a negative ion collector 200, the negative ion collector 200 is arranged opposite to the positive corona emitter 100;

[0051] a heat sink 300, the heat sink 300 is arranged between the positive corona emitter 100 and the negative ion collector 200;

[0052] a neutralization assembly 400, the neutralization assembly 400 is used to generate negative corona electrons to neutralize the positive corona electrons on the surface of the heat sink 300.

[0053] In the embodiment, the ion wind heat dissipation mechanism further comprises a bottom plate 900, and the positive corona emitter 100 and the negative ion collector 200 are arranged on the bottom plate 900, so that the bottom plate 900 supports the positive corona emitter 100 and the negative ion collector 200.

[0054] In the embodiment, a high voltage is applied between the positive corona emitter 100 and the negative ion collector 200, and a high-voltage direct-current power supply or a high-voltage pulse power supply is usually used. First, the positive pole of the high-voltage direct-current power supply or the high-voltage pulse power supply is connected to the positive corona emitter 100, the negative pole of the high-voltage direct-current power supply or the high-voltage pulse power supply is connected to the negative ion collector 200, and the negative ion collector 200 is grounded to provide a safe current loop. Then, the output voltage of the power supply is gradually increased, and the corona discharge condition is observed to avoid damage to the equipment caused by instantaneous high voltage. The voltage and current are monitored by a voltmeter and an ammeter to ensure that they are within a safe range.

[0055] In the present application, by adopting the arrangement of the neutralization assembly 400, when a high voltage is applied between the positive corona emitter 100 and the negative ion collector 200, air is ionized to generate positive ions and positive corona electrons. The positive ions move to the negative ion collector 200 under the action of the electric field, and the positive corona electrons return to the positive corona emitter 100 and may accumulate on the heat sink 300. At this time, the neutralization assembly 400 can generate negative corona electrons. Since the positive corona electrons have a negative charge and the negative corona electrons have a positive charge, the positive corona electrons on the heat sink 300 are neutralized with the negative corona electrons generated by the neutralization assembly 400, so that the positive corona electrons and the negative corona electrons cancel each other out. This neutralization process not only prevents insulation failure and short circuit problems caused by charge accumulation on the surface of the heat sink 300, but also reduces the phenomenon of static field enhancement caused by charge accumulation, reduces the corrosion and pollution of the positive corona emitter 100 and the negative ion collector 200, and prolongs the service life of the heat sink 300, thereby prolonging the service life of the ion wind heat dissipation mechanism.

[0056] The neutralization assembly 400 comprises a negative corona emitter 410 and a positive ion collector 420, and the heat sink 300 is arranged between the negative corona emitter 410 and the positive ion collector 420. The negative corona emitter 410 is arranged opposite to the positive ion collector 420, and the negative corona emitter 410 is used for discharging to generate negative corona electrons.

[0057] In the embodiment, the negative corona emitter 410 is connected to the positive corona emitter 100, and the positive ion collector 420 is connected to the negative ion collector 200. In other embodiments, the negative corona emitter 410 can be arranged on the upper part or the lower part of the positive corona emitter 100, and the positive ion collector 420 can be arranged on the upper part or the lower part of the negative ion collector 200.

[0058] In the embodiment, the positive corona emitter 100 and the negative corona emitter 410 are used for alternating discharge.

[0059] In the application, when the positive corona emitter 100 works, the surface of the heat sink 300 will accumulate positive corona electrons with negative charge, and when switching to the negative corona emitter 410, the generated negative corona electrons with positive charge will be blown to the surface of the heat sink 300 and neutralized with the accumulated positive corona electrons. This alternating discharge mode can effectively neutralize the charge on the surface of the heat sink 300, prevent insulation failure and short circuit caused by charge accumulation, and prolong the service life of the ion wind cooling mechanism; and the positive corona emitter 100 and the negative corona emitter 410 can both generate ion wind, and the directions of the ion wind generated by the positive corona emitter 100 and the negative corona emitter 410 are the same, so the heat sink 300 can be cooled at the same time, thereby maintaining the heat dissipation efficiency of the heat sink 300; the positive corona emitter 100 and the negative corona emitter 410 will generate ozone at the same time of generating ion wind, and the alternating discharge makes the positive corona emitter 100 and the negative corona emitter 410 not work continuously, when one of them is closed, the other is opened, the positive corona emitter 100 and the negative corona emitter 410 both have time to stop discharging, which can reduce the average working power and continuous discharge time of the positive corona emitter 100 or the negative corona emitter 410. Since the generation of ozone is not linear, and the generated ozone has time to diffuse and decompose, the alternating discharge mode can reduce the peak concentration and average concentration of ozone, thereby reducing the potential harm to the environment and human body.

[0060] In the embodiment, to realize the alternating discharge of the positive corona emitter 100 and the negative ion collector 200 and the negative corona emitter 410 and the positive ion collector 420, the output polarity of the high-voltage power supply can be controlled by an electronic switch circuit, for example, a bipolar high-voltage power supply can be used to switch the positive and negative output of the power supply with a timer or a microcontroller, and a period is set, for example, switching once every second, and in the first 0.5 seconds, the positive electrode of the bipolar high-voltage power supply is connected to the positive corona emitter 100, and the negative electrode is connected to the negative ion collector 200, and the positive corona discharge is carried out; in the last 0.5 seconds, the positive electrode of the bipolar high-voltage power supply is connected to the positive ion collector 420, and the negative electrode is connected to the negative corona emitter 410, and the negative corona discharge is carried out. In this way, the positive and negative charges accumulated on the surface of the heat sink 300 can be neutralized by the opposite charges generated alternately in each period, effectively preventing charge accumulation and prolonging the service life of the heat sink 300.

[0061] In combination Figures 1 to 3In the embodiment, the positive corona emitter 100 is arranged on the bottom plate 900, and the negative corona emitter 410 is arranged on the upper portion of the positive corona emitter 100, or the negative corona emitter 410 is arranged on one side of the positive corona emitter 100, or the negative corona emitter 410 is arranged on the bottom plate 900, and the positive corona emitter 100 is arranged on the upper portion of the negative corona emitter 410, or the positive corona emitter 100 is arranged on one side of the negative corona emitter 410, and when the positions of the positive corona emitter 100 and the negative corona emitter 410 change, the positions of the positive ion collecting electrode 420 and the negative ion collecting electrode 200 are adjusted adaptively.

[0062] In the embodiment, the positive corona emitter 100 and the negative corona emitter 410 are made of metal materials such as tungsten, aluminum or stainless steel, which have excellent electrical conductivity, high mechanical strength and high-temperature resistance, and can withstand high electric field intensity and heat generated in the process of corona discharge; and the positive ion collecting electrode 420 and the negative ion collecting electrode 200 are made of aluminum, copper or alloys thereof, which have good electrical conductivity, are easy to process and have relatively low cost.

[0063] In combination Figure 4 and Figure 5 In some embodiments, at least one of the positive corona emitter 100 and the negative corona emitter 410 includes a first connecting portion 500 and a plurality of second connecting portions 600, one end of each second connecting portion 600 is connected to the first connecting portion 500, and the other end of each second connecting portion 600 is pointed, and the plurality of second connecting portions 600 are distributed along the length direction of the first connecting portion 500.

[0064] In the embodiment, the positive corona emitter 100 and the negative corona emitter 410 each include a first connecting portion 500 and a plurality of second connecting portions 600, the first connecting portion 500 and the second connecting portion 600 are each in a strip shape, the second connecting portion 600 is perpendicular to the first connecting portion 500, the plurality of second connecting portions 600 are arranged at two ends and a middle portion of the first connecting portion 500, and the first connecting portion 500 and the second connecting portion 600 are integrally arranged.

[0065] In the present application, the end of the second connecting portion 600 away from the first connecting portion 500 is pointed, and due to the sharp end effect, the electric field is highly concentrated at the sharp end, which enables corona discharge to be triggered at a relatively low voltage, thereby effectively reducing energy consumption and improving discharge efficiency; the pointed second connecting portion 600 can generate finer and more uniform ion wind, and such ion wind can more accurately act on the surface of the heat sink 300, thereby achieving more efficient heat dissipation; the pointed second connecting portion 600 is easy to process and manufacture, and has low cost.

[0066] In some embodiments, at least one of the positive corona emitter 100 and the negative corona emitter 410 is needle-shaped, wire-shaped or mesh-shaped, and / or at least one of the positive ion collector 420 and the negative ion collector 200 is flat-plate-shaped, cylindrical-shaped or mesh-shaped.

[0067] In the present embodiment, at least one of the positive corona emitter 100 and the negative corona emitter 410 is needle-shaped, wire-shaped or mesh-shaped, the positive corona emitter 100 can be selected as needed among needle-shaped, wire-shaped and mesh-shaped, the negative corona emitter 410 can be selected as needed among needle-shaped, wire-shaped and mesh-shaped, at least one of the positive ion collector 420 and the negative ion collector 200 is flat-plate-shaped, cylindrical-shaped or mesh-shaped, the positive ion collector 420 can be selected as needed among flat-plate-shaped, cylindrical-shaped and mesh-shaped, the negative ion collector 200 can be selected as needed among flat-plate-shaped, cylindrical-shaped and mesh-shaped.

[0068] In the present application, by adopting the needle-shaped positive corona emitter 100 and the negative corona emitter 410, high electric field intensity can be generated at a lower voltage by utilizing the sharp-end effect, thereby efficiently initiating corona discharge; by adopting the wire-shaped positive corona emitter 100 and the negative corona emitter 410, a larger discharge area is provided, making the electric field distribution more uniform, which helps to improve the stability and heat dissipation efficiency of the discharge; by adopting the mesh-shaped positive corona emitter 100 and the negative corona emitter 410, the discharge area is further expanded, a more uniform ion wind can be generated to improve the heat dissipation effect, and the structural design helps to reduce the problem of excessive local electric field, which is suitable for scenarios with large-area heat dissipation requirements.

[0069] In the present application, by adopting the flat-plate-shaped positive ion collector 420 and the negative ion collector 200, the structure is simple and easy to process, which can provide a larger receiving area suitable for receiving electrons generated from the positive corona emitter 100 and the negative corona emitter 410; by adopting the cylindrical-shaped positive ion collector 420 and the negative ion collector 200, a more uniform electric field distribution is achieved, which can effectively reduce the corona discharge caused by excessive local electric field, improve the stability and safety of the discharge, and is suitable for applications with high requirements for electric field uniformity; by adopting the mesh-shaped positive ion collector 420 and the negative ion collector 200, not only a larger receiving area is provided, but also the amount of material used is reduced, the weight is reduced, and the open structure helps air circulation, further improving the heat dissipation effect.

[0070] In combination with Figure 6 and Figure 7 , at least one of the positive corona emitter 100 and the negative corona emitter 410 is provided with a corrosion-resistant layer 700.

[0071] In the embodiment, the corrosion-resistant layer 700 is arranged on the positive corona emitter 100 and the negative corona emitter 410.

[0072] In the embodiment, the corrosion-resistant layer 700 is arranged on the positive corona emitter 100 and the negative corona emitter 410. Chemical plating or physical vapor deposition can be used. Chemical plating nickel-phosphorus alloy can be used. The alloy has excellent corrosion resistance and hardness, and can effectively protect the positive corona emitter 100 and the negative corona emitter 410 from corrosion. Physical vapor deposition is used to plate a layer of titanium nitride or chromium nitride on the surface of the emitter. These materials not only have strong corrosion resistance, but also can improve the surface hardness and wear resistance, prolong the service life of the positive corona emitter 100 and the negative corona emitter 410. In addition, a polytetrafluoroethylene polymer coating can also be selected.

[0073] In the application, the corrosion-resistant layer 700 can effectively protect the positive corona emitter 100 and the negative corona emitter 410 from chemical substances in the environment, prolong the service life of the positive corona emitter 100 and the negative corona emitter 410, and reduce performance degradation and equipment failure caused by corrosion. The corrosion-resistant layer 700 can improve the surface hardness and wear resistance of the positive corona emitter 100 and the negative corona emitter 410, so that they can maintain good conductivity and corona discharge performance during long-term operation.

[0074] As shown in Figure 8 The negative ion collector 200 is a corrosion-resistant collector, and / or the positive ion collector 420 is provided with an oxidation-resistant coating 421.

[0075] In the embodiment, the negative ion collector 200 is a corrosion-resistant collector, and the corrosion-resistant collector is stainless steel. The positive ion collector 420 is provided with an oxidation-resistant coating 421.

[0076] In the application, the negative ion collector 200 is made of stainless steel. Stainless steel has corrosion resistance and can work stably for a long time in a humid or chemically complex environment, effectively preventing electrode damage and performance degradation caused by corrosion. Stainless steel has high mechanical strength and can withstand large mechanical stress, ensuring that the negative ion collector 200 is not easily deformed or damaged during use. Stainless steel has good processability and can be easily processed into various shapes.

[0077] In the present application, the anti-oxidation coating 421 on the positive ion current collector 420 can be set by chemical plating, physical vapor deposition or spraying. Common anti-oxidation coating 421 materials include titanium nitride, chromium nitride and aluminum oxide, which have excellent anti-oxidation performance and good electrical conductivity, can effectively protect the positive ion current collector 420 from oxidation corrosion, prolong the service life, and the anti-oxidation coating 421 can also improve the surface hardness and wear resistance of the positive ion current collector 420, thereby maintaining the electrical conductivity of the positive ion current collector 420 and the stability of the corona discharge.

[0078] As shown in Figure 9 The heat sink 300 includes a plurality of boron nitride heat dissipation fins 310 arranged at intervals.

[0079] In the present application, the heat sink 300 adopts a plurality of boron nitride heat dissipation fins 310 arranged at intervals. Compared with traditional copper or aluminum materials, boron nitride not only has excellent heat conduction performance and can efficiently conduct heat, but also has extremely poor electrical conductivity and almost no electrical conductivity. This characteristic makes the boron nitride heat dissipation fin 310 not cause electric field distortion in the electric field, thereby avoiding the deterioration of the heat dissipation performance caused by electric field interference, ensuring the stability of the corona discharge process in the ion wind heat dissipation mechanism, and allowing the charge accumulated on the surface of the heat dissipation fin to be more evenly distributed, facilitating neutralization by alternating discharge, and prolonging the service life of the heat sink 300.

[0080] As shown in Figure 10 Each boron nitride heat dissipation fin 310 is provided with an ozone catalytic layer 320.

[0081] In the present embodiment, the thickness of the ozone catalytic layer 320 is nanometer or micrometer. The use of an ozone catalytic layer 320 with a thickness of nanometer or micrometer prevents the ozone catalytic layer 320 from affecting the heat dissipation performance of the boron nitride heat dissipation fin 310.

[0082] The ozone catalytic layer 320 can use modified alumina. Modified alumina can improve the activity sites and hydrophilicity of the ozone catalytic layer 320 by introducing metal oxides such as manganese, cobalt and cerium into alumina and using gradient temperature calcination and hydroxylation modification. The ozone catalytic layer 320 can also use other materials such as titanium dioxide or manganese dioxide and other metal oxides, which have good catalytic activity and can decompose ozone.

[0083] In the present application, by arranging the ozone catalytic layer 320 on each boron nitride heat dissipation fin 310, the positive corona emitter 100 and the negative ion collector 200 and the negative corona emitter 410 and the positive ion collector 420 generate ozone during operation. The ozone catalytic layer 320 can decompose the ozone into hydroxyl radicals and superoxide radicals, reducing the residual ozone and reducing the potential harm of ozone to the environment and human health. The ozone catalytic layer 320 can work continuously without additional energy input, reducing operating costs. The ozone catalytic layer 320 can also reduce the corrosion and aging of the positive corona emitter 100, the negative ion collector 200, the negative corona emitter 410, the positive ion collector 420 and the boron nitride heat dissipation fin 310 caused by ozone accumulation, prolonging the service life of the positive corona emitter 100, the negative ion collector 200, the negative corona emitter 410, the positive ion collector 420 and the boron nitride heat dissipation fin 310. As shown in Figure 1 The ion wind heat dissipation mechanism also includes a trajectory changing assembly 800 for driving the charged particles between the negative ion collector 200 and the positive corona emitter 100 and the negative corona emitter 410 and the positive ion collector 420 to move along a spiral trajectory or a wave trajectory.

[0084] In the present embodiment, the trajectory changing assembly 800 is used to drive the charged particles between the negative ion collector 200 and the positive corona emitter 100 and the negative corona emitter 410 and the positive ion collector 420 to move along a spiral trajectory.

[0085] In the present application, by using the trajectory changing assembly 800 to drive the charged particles to move spirally, the path length of the charged particles between the negative ion collector 200 and the positive corona emitter 100 and the negative corona emitter 410 and the positive ion collector 420 is increased, thereby increasing the collision probability of the charged particles with air molecules, enhancing the ionization effect, and further generating stronger ion wind and improving the heat dissipation efficiency. The movement along the spiral trajectory can also make the movement along the spiral or wave shape more evenly distributed in the entire heat dissipation area, avoiding local overheating and further optimizing the heat dissipation effect. The movement along the spiral trajectory can also reduce the possibility of the charged particles directly impacting the surface of the negative ion collector 200 and the positive ion collector 420, reducing the wear and pollution of the negative ion collector 200 and the positive ion collector 420, and prolonging the service life of the negative ion collector 200 and the positive ion collector 420.

[0086] The trajectory changing assembly 800 includes a first magnet 810 and a second magnet 820, which are arranged on opposite sides of the heat sink 300. The first magnet 810 and the second magnet 820 have opposite magnetic properties.

[0087] In the embodiment, the first magnet 810 is positive, and the second magnet 820 is negative. The first magnet 810 and the second magnet 820 are arranged in a long strip shape, and are arranged along the length direction between the positive corona emitter 100 and the negative ion collector 200. The first magnet 810 and the second magnet 820 are permanent magnets, and can also be electromagnets, so as to facilitate control of the magnetic field.

[0088] In the application, the first magnet 810 and the second magnet 820 are arranged to form a magnetic field between the negative ion collector 200 and the positive corona emitter 100, and between the negative corona emitter 410 and the positive ion collector 420. The charged particles of positive ions and negative ions are affected by the Lorentz force in the magnetic field and move along a spiral trajectory. The structure is simple and facilitates production and processing.

[0089] In other embodiments, to make the charged particles move along a wavy trajectory, a plurality of alternating magnetic poles can be arranged between the negative ion collector 200 and the positive corona emitter 100 to generate a periodically changing magnetic field. When the charged particles pass through the changing magnetic field, they are affected by the periodically changing force, so that their motion trajectory deviates from a straight line and forms a wavy path. Such wavy motion can increase the interaction between the charged particles and air molecules, improve the ionization efficiency, enhance the strength and uniformity of the ion wind, and thus improve the heat dissipation effect.

[0090] The application also provides an electronic device, which comprises a device body and the ion wind heat dissipation mechanism of any one of the above embodiments arranged on the device body.

[0091] The specific structure of the ion wind heat dissipation mechanism has been described in detail in the above embodiments, and will not be repeated here.

[0092] The electronic device provided by the application is provided with the ion wind heat dissipation mechanism. First, the positive corona emitter 100 works, air is ionized to generate positive ions and positive corona electrons, the positive ions move to the negative ion collector 200 under the action of the electric field, and the positive corona electrons return to the positive corona emitter 100. At this time, the negative corona emitter 410 works, air is ionized to generate negative ions and negative corona electrons, the negative ions move to the positive ion collector 420 under the action of the electric field, and the negative corona electrons return to the negative corona emitter 410 and neutralize the accumulated positive corona electrons. This alternating discharge mode of the positive corona emitter 100 and the negative corona emitter 410 can effectively neutralize the charge on the surface of the heat sink 300, prevent insulation failure and short circuit caused by charge accumulation, prolong the service life of the heat sink 300, and thus prolong the service life of the ion wind heat dissipation mechanism.

[0093] It should be understood that many variations can be made in the embodiments described herein, which provide the features of the application, while still remaining within the spirit and scope of the application. It is therefore contemplated that the application shall also cover any such changes and modifications that follow in the spirit and scope of the application, and that such applications may, of course, include any additional steps or incudes known to those in the art to whom this application pertains, and that such applications may, of course, include any additional steps or incorporates known to those in the art to whom this application pertains, and that such applications may, of course, include any additional steps or incorporates known to those in the art to whom this application pertains, and that such applications may, of course, include any additional steps or incorporates known to those in the art to whom this application pertains, and that such applications may, of course, include any additional steps or incorporates known to those in the art to whom this application pertains, and that such applications may, of course, include any additional steps or incorporates known to those in the art to whom this application pertains, and that such applications may, of course, include any additional steps or incorporates known to those in the art to whom this application pertains, and that such applications may, of course, include any additional steps or incorporates known to those in the art to whom this application pertains, and that such applications may, of course, include any additional steps or incorporates known to those in the art to whom this application pertains, and that such

Claims

1. An ion wind heat dissipation mechanism, characterized in that, include: Positive corona emitter (100); A negative ion collector (200) is disposed opposite to the positive corona emitter (100); A heat sink (300) is disposed between the positive corona emitter (100) and the negative ion collector (200); Neutralization component (400) for generating negative corona electrons to neutralize the positive corona electrons on the surface of the heat sink (300); The neutralization component (400) includes a negative corona emitter (410) and a positive ion collector (420), and the heat sink (300) is disposed between the negative corona emitter (410) and the positive ion collector (420). The negative corona emitter (410) is disposed opposite to the positive ion collector (420), and the negative corona emitter (410) is used to discharge to generate negative corona electrons. The positive corona emitter (100) and the negative corona emitter (410) discharge alternately.

2. The ion wind heat dissipation mechanism according to claim 1, characterized in that, At least one of the positive corona emitter (100) and the negative corona emitter (410) includes a first connecting portion (500) and a second connecting portion (600). Multiple second connecting portions (600) are provided. One end of the second connecting portion (600) is connected to the first connecting portion (500), and the other end of the second connecting portion (600) is pointed. Multiple second connecting portions (600) are distributed at intervals along the length direction of the first connecting portion (500).

3. The ion wind heat dissipation mechanism according to claim 1, characterized in that, At least one of the positive corona emitter (100) and the negative corona emitter (410) is needle-shaped, wire-shaped, or mesh-shaped, and / or at least one of the positive ion collector (420) and the negative ion collector (200) is plate-shaped, cylindrical, or mesh-shaped.

4. The ion wind heat dissipation mechanism according to claim 1, characterized in that, At least one of the positive corona emitter (100) and the negative corona emitter (410) is provided with a corrosion-resistant layer (700).

5. The ion wind heat dissipation mechanism according to claim 1, characterized in that, The negative ion collector (200) is a corrosion-resistant collector, and / or, the positive ion collector (420) is provided with an antioxidant coating (421).

6. The ion wind heat dissipation mechanism according to any one of claims 1-4, characterized in that, The radiator (300) includes a plurality of spaced-apart boron nitride heat dissipation fins (310).

7. The ion wind heat dissipation mechanism according to claim 6, characterized in that, Each of the boron nitride heat dissipation fins (310) is provided with an ozone catalytic layer (320).

8. The ion wind heat dissipation mechanism according to any one of claims 1-4, characterized in that, It also includes a trajectory changing component (800) for driving charged particles between the negative ion collector (200) and the positive corona emitter (100) and between the negative corona emitter (410) and the positive ion collector (420) to move along a spiral or wave trajectory.

9. The ion wind heat dissipation mechanism according to claim 8, characterized in that, The trajectory changing component (800) includes a first magnet (810) and a second magnet (820), which are respectively disposed on opposite sides of the heat sink (300), and the first magnet (810) and the second magnet (820) have opposite magnetic properties.

10. An electronic device, characterized in that, It includes the device body and the ion wind heat dissipation mechanism as described in any one of claims 1-9, which is disposed on the device body.

Images