CN112928604A

CN112928604A - Bladeless fan based on ion engine

Info

Publication number: CN112928604A
Application number: CN202110179700.1A
Authority: CN
Inventors: 江加辉; 韩思雨; 刘彦儒; 魏源; 王晓慧; 张韬; 马大壮; 王建功
Original assignee: Qingdao University
Current assignee: Qingdao University
Priority date: 2021-02-08
Filing date: 2021-02-08
Publication date: 2021-06-08

Abstract

The invention discloses a bladeless fan based on an ion engine, which consists of a high-voltage ionization circuit, two electrodes, an air channel with a large inlet and a small outlet and a support; the high-voltage circuit converts alternating current commercial power into high-voltage direct current, and ionizes air to form ion wind; the positive electrode and the negative electrode are respectively positioned at the air inlet and the air outlet, and the structure with the large air inlet and the small air outlet realizes wind power acceleration; the high-voltage ionization circuit is arranged at the bottom of the support and is connected with the two electrodes; the bladeless fan based on the ion engine adopts the ion engine technology to generate ionized air, is different from the traditional fan principle, overcomes the defects that the traditional fan is high in noise, easy to hurt people and the like, overcomes the defects that the bladeless fan based on the turbocharging technology is high in power consumption, high in noise and the like, controls the concentration of ozone and negative oxygen ions by controlling the output voltage of the high-voltage ionization circuit, achieves the air purification effect, and has good application and popularization values.

Description

Bladeless fan based on ion engine

The technical field is as follows:

the invention relates to the technical field of household appliances, in particular to a bladeless fan based on an ion engine.

Background art:

at present, the traditional blade fan in the market adopts a motor rotating structure, as shown in figure 2, although the blade fan is mature in structure and wide in application, the structure and the principle of the blade fan are easy to adsorb dust in the working process, the blade fan is difficult to disassemble and clean, dust is easy to accumulate after long-time use, bacteria can be bred, and the operation of the fan and the health of a user can be affected; because the gap between the fan shell and the fan blades is large, the fan blades are easy to hurt people, and certain potential safety hazards exist; meanwhile, the traditional fan uses blades to cut air to push airflow, so that the phenomenon that the wind speed is unstable and the impact feeling exists is avoided, and the problem of poor comfort is solved.

The existing bladeless fan adopts a turbocharging technology, air is sucked through the air suction hole below the bladeless fan, and then the air is sprayed out in a circular track through the impeller hidden in the edge of the circular ring, so that the hidden danger that the fan blades hurt people is solved, but the problems of larger noise, high price, low conversion efficiency, high power consumption and the like of the traditional fan exist, and the bladeless fan is single in function, so that the bladeless fan is not well popularized and applied.

Therefore, the research on the low-noise multifunctional bladeless fan becomes a research hotspot in the technical field of household appliances.

The invention content is as follows:

the invention aims to explore a low-noise multifunctional bladeless fan. To this end, a first object of the present invention is to propose a bladeless fan with low noise; the second purpose of the invention is to provide an air purification method based on a bladeless fan.

In order to achieve the above purpose: the invention provides a first embodiment aiming at the first aspect, which is characterized in that the bladeless fan adopts an ion engine as a drive, and adopts an air duct structure with a large air inlet and a small air outlet to increase the pressure. The ion engine at the core part is realized by a high-voltage ionization circuit, the design goal of the high-voltage ionization circuit is to realize the conversion from 220V alternating current commercial power to direct current high voltage electricity, the circuit structure is to rectify the commercial power into direct current by using a full-bridge uncontrolled rectifying circuit, boost the direct current into direct current pulse voltage with higher amplitude by using a boost chopper circuit, generate high-voltage direct current by a voltage multiplier, and finally access the high-voltage direct current to a positive electrode and a negative electrode. The high-speed ions are generated by ionizing air through the high-voltage ionization circuit, then collide with molecules in the air, generate avalanche breakdown, and directionally move under the action of an external electric field to form airflow, and the wind speed is increased by the shell. In summary, the ion engine is quiet, stable and noiseless when in operation, achieves the aim of almost noiseless, and solves the hidden danger that the fan blades of the traditional fan hurt people and the problem that the bladeless fan in the prior turbocharging technology has large noise.

In order to achieve the above purpose: aiming at the second aspect, the invention adjusts the concentration of ozone and negative oxygen ion products in the ionization process by controlling the output voltage of the high-voltage ionization circuit, thereby achieving the effect of purifying air.

The bladeless fan provided by the invention adopts an ion engine technology to replace a motor rotation and turbocharging technology, has the advantages of low noise, stable wind speed and the like, has an air purification function, is a multifunctional bladeless fan, and can provide healthy and comfortable use experience for users.

Drawings

FIG. 1 is a block diagram of a bladeless fan based ion engine;

FIG. 2 is a pictorial view of a conventional fan;

FIG. 3 is a pictorial view of a prior art bladeless fan;

FIG. 4 is a block diagram of a high voltage ionization circuit;

FIG. 5 is a schematic view of air ionization to produce a directionally moving ion wind;

FIG. 6 is a control block diagram of ozone and negative oxygen ion production.

The specific implementation mode is as follows:

the technical solution of the present invention is further described below with reference to the drawings and examples of the specification.

The bladeless fan based on the ion engine shown in the attached figure 1 is composed of a high-voltage ionization circuit, two electrodes, an air channel with a large inlet and a small outlet, a support and the like; the high-voltage circuit is placed on a flat round base of the support, the high-voltage ionization circuit firstly adopts an AC-DC rectifying circuit to convert alternating current commercial power into direct current, then utilizes a DC-DC boosting chopper circuit to boost a smaller direct current input into a higher direct current pulse voltage, and finally generates high-voltage direct current through a voltage multiplier, so that air ionization is realized in an air duct, and wind current is generated due to the directional movement of ions, so that the bladeless fan function is realized; the two positive electrodes and the two negative electrodes are respectively positioned at the air inlet and the air outlet, and the materials of the two positive electrodes and the two negative electrodes are made of materials with good conductivity and high pressure resistance; the air duct with the large air inlet and the small air outlet is made of insulating plastic, and the structure has the advantages that wind power acceleration can be realized, and the effect of generating wind is better; the support is also made of an insulating plastic.

In order to form a strong enough electric field to ionize particles in the air and further lose electrons to form positive ions, the high-voltage ionization circuit firstly adopts a full-bridge uncontrolled rectifying circuit to rectify 220V commercial power into direct current, then utilizes a boost chopper circuit to boost the direct current into a direct current pulse with higher voltage amplitude, generates high-voltage direct current through a voltage multiplier, and finally is connected to positive and negative electrodes to form a required strong electric field, as shown in figure 4. The particles in the air are ionized in a strong electric field to lose electrons, the electrons flow to the negative electrode along the positive electrode, the positive electrode gathers a large amount of positive charges, on the contrary, the negative electrode gathers a large amount of negative charges, the air molecules close to the positive electrode lose the electrons to become ions with positive charges, the ions fly to the negative electrode under the acceleration of the electric field, as shown in figure 5, avalanche breakdown occurs in the process, the cations grow exponentially, and then the ions are accelerated by the electric field to form ion wind. Meanwhile, high-energy electrons mixed in the ion wind can react with oxygen and moisture in the air, a large amount of active groups such as ozone and negative oxygen ions can be generated, and the active groups can chemically react with harmful gas molecules to play a role in purifying the air.

As shown in fig. 6, an ion concentration sensor disposed in the air duct monitors the concentration of ozone and negative oxygen ions in real time and converts the concentration into an electric signal, the electric signal is used as a feedback value to be superimposed with a given value and then is transmitted to a controller, the controller outputs a control signal after logic operation processing, the control signal is converted into a high-frequency stable signal by a modulator, and then the control signal is demodulated and output to a main circuit by a driver, so that the function of adjusting the output voltage amplitude of the circuit in real time by using the ion concentration as a criterion is realized, thereby realizing the closed-loop control of voltage adjustment of the high-voltage circuit, ensuring that the concentration of ozone and negative oxygen ions is kept in a range beneficial to a human body, and.

The bladeless fan provided by the invention adopts an ion engine technology to replace a motor rotation and turbocharging technology, has the advantages of low noise, stable wind speed and the like, has an air purification function, is a multifunctional bladeless fan, can provide healthy and comfortable use experience for users, and has a wide market prospect.

Claims

1. A bladeless fan based on an ion engine, comprising: the fan consists of a high-voltage ionization circuit, two electrodes, an air channel with a large inlet and a small outlet and a support; the high-voltage ionization circuit is formed by sequentially cascading a rectifying circuit, a boost chopper circuit and a voltage multiplier; the high-voltage ionization circuit is arranged in the flat round base of the support; the positive electrode and the negative electrode are both made of conductive materials and are respectively positioned at the air inlet and the air outlet, and the structure with the large air inlet and the small air outlet realizes wind acceleration; the air duct and the support are both made of insulating plastics; ozone and negative oxygen ions can be generated by controlling the output voltage of the high-voltage ionization circuit, so that the air purification effect is realized.

2. The ion engine-based bladeless fan of claim 1, wherein: the high-voltage ionization circuit firstly adopts an AC-DC rectifying circuit to convert alternating current commercial power into direct current, then utilizes a DC-DC boosting chopper circuit to boost a smaller direct current input into a higher direct current pulse voltage, and finally generates high-voltage direct current through a voltage multiplier to realize air ionization.

3. The ion engine-based bladeless fan of claim 1, wherein: the operating principle of the bladeless fan is that air is ionized by a strong electric field between two electrodes to generate charged ions, the ions move directionally under the action of an external electric field to form directional airflow, and wind acceleration is realized through an air channel with a large air inlet and a small air outlet.