CN204469488U - Air purifier - Google Patents

Abstract

The utility model discloses an air purifier, which comprises a purifier casing, an air inlet fan, a filter screen, a water mist generating device, an electrostatic device and a sewage storage box; the air inlet fan is installed at the air inlet or outlet of the purifier casing. The inner side of the tuyere; the filter screen includes a front filter screen and a rear filter screen, which are respectively installed inside the air outlet and air inlet of the purifier, and form a closed cavity with the purifier shell; the water mist generating device is installed in the closed cavity The bottom of the body is used to generate high-concentration fine water mist particles and fill the cavity; the electrostatic device is installed inside the purifier; the electrostatic device cooperates with the water mist generating device to charge the water mist particles, and the sewage The storage box is installed at the bottom of the purifier. The beneficial effect of the utility model is that: the filtering effect is good; the charged water mist absorbs the dust and is collected into the sewage storage box, which is easy to clean and easy to use; there are no consumables, and the core filter components do not need to be replaced frequently, reducing the use cost.

Description

air purifier

technical field

The utility model relates to an air purifier, in particular to an air purifier used for indoor air purification and dust removal of residents.

Background technique

Environmental pollution is becoming more and more serious, and tiny dust in the air seriously affects people's health. It is generally believed that particles with a size smaller than 2.5 μm (PM2.5) can enter the human respiratory system and cause harm to the human body. Due to the very small size of PM2.5, ordinary doors and windows cannot effectively block PM2.5 particles from outside, so it is very necessary to place air purification equipment indoors. General air purification equipment adopts passive filtering technology, that is, single-layer or multi-layer filter screens are used to filter the air blown in by fans. Air purifiers using this technology require that the filter mesh is fine enough to filter dust with a particle size of less than 2.5 μm. However, there are many disadvantages in the use of filter screen for filtration, such as: the mesh size of the filter screen is too dense, it is very easy to block, and needs to be replaced frequently; the manufacturing process of the filter screen is complicated and the cost of use is high.

Utility model content

The purpose of the utility model is to overcome the deficiencies in the prior art and provide an air purifier with low cost and high dust removal efficiency.

This air purifier includes a purifier shell, an air intake fan, a filter screen, a water mist generating device, an electrostatic device and a sewage storage box; the air intake fan is installed inside the air inlet or air outlet of the purifier shell; the The filter screen includes a front filter screen and a rear filter screen, which are installed inside the air outlet and air inlet of the purifier respectively, and form a closed cavity with the purifier shell; the water mist generating device is installed at the bottom of the closed cavity for Generate high-concentration fine water mist particles and fill the cavity; the electrostatic device is installed inside the purifier; the electrostatic device cooperates with the water mist generating device to charge the water mist particles, and the sewage storage box is installed in the purifier the bottom of the device.

As a preference: the air intake fan is installed on the air intake side of the purifier housing.

As a preference: the sewage storage box and the water mist generating device are placed side by side.

As a preference: the filter screen adopts a detachable frame, and the filter screen adopts washable filter screen material.

As a preference: the water mist generating device includes a water mist generator, a circuit module and a water storage box; the water mist generator is an ultrasonic water mist generator placed in the water storage box, and the circuit module supplies power to it.

As a preference: the circuit module is installed at the bottom inside the air inlet of the shell of the purifier.

As a preference: both the water storage box and the sewage storage box are detachable.

As a preference: the electrostatic device is composed of an electrostatic generator, a positive metal mesh and a negative electrode, the positive metal mesh is connected to the positive electrode of the electrostatic generator and grounded, and the negative electrode is connected to the negative electrode of the electrostatic generator; the sewage storage box is placed in Below the positive metal mesh, the water storage box is installed under the negative electrode; the positive metal mesh is parallel to the negative electrode, the negative electrode is installed on the side of the air inlet, and the positive metal mesh is installed on the side of the air outlet.

As a preference: a diversion groove for diverting the collected sewage into the sewage storage box is provided under the metal mesh of the positive electrode.

As a preference: the electrostatic generator is installed in a sealed cavity at the top of the shell of the purifier.

The beneficial effects of the utility model are:

1) First use the filter to filter large particles of dust, hair, etc., and then use a certain concentration of charged water mist to actively absorb various sizes of tiny dust. There is no selectivity for the size of dust particles, and the filtering effect is good;

2) After the charged water mist absorbs the dust, it is collected into the sewage storage box, which is easy to clean and easy to use;

3) No consumables, no need to frequently replace the core filter components, reducing the cost of use;

4) The structure is simple and low cost, and is suitable for popularization and application.

Description of drawings

Fig. 1 is the structural representation of the utility model air purifier;

Fig. 2 is A-A sectional view of Fig. 1;

Explanation of reference numerals: purifier shell 1, air intake fan 2, filter screen 3, front filter screen 31, rear filter screen 32, water mist generating device 4, water mist generator 41, circuit module 42, water storage box 43, An electrostatic device 5 , an electrostatic generator 51 , a positive metal mesh 52 , a negative electrode 53 , and a sewage storage box 6 .

Detailed ways

The present invention will be further described below in conjunction with the examples. The description of the following examples is provided only to aid the understanding of the present invention. It should be pointed out that for those skilled in the art, without departing from the principle of the present invention, some improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

As shown in Fig. 1 to Fig. 2, the air purifier of the embodiment of the utility model is composed of a purifier shell 1, an air intake fan 2, a filter screen 3, a water mist generating device 4, an electrostatic device 5 and a sewage storage box 6.

The filter screen 3 is composed of a front filter screen 31 and a rear filter screen 32. The front filter screen 31 and the rear filter screen 32 are installed inside the purifier shell 1 and form a closed cavity 7 with them. The filter screen 3 is used to filter foreign matter such as large-sized dust particles or hair, and at the same time, the closed cavity 7 formed with the purifier shell 1 can gather a certain concentration of water mist.

The air intake fan 3 can be installed at the air inlet or at the air outlet to increase the air flow.

The water mist generating device 4 is composed of a water mist generator 41 , a circuit module 42 and a water storage box 43 . The water mist generator 41 adopts an ultrasonic water mist generator to generate water mist particles. The method fills the cavity 7 with water mist. The water mist concentration can be achieved by controlling the power of the ultrasonic generator. The circuit module 42 provides a high-frequency signal source for the ultrasonic generator 41 .

The electrostatic device 5 is used to charge the water mist particles and is composed of an electrostatic generator 51 , a positive metal mesh 52 and a negative electrode 53 . When the electrostatic device 5 is implemented, attention should be paid to the insulation between the positive electrode and the negative electrode. The electrostatic generator 51 adopts a low-power DC power supply electrostatic generator. The positive electrode metal mesh 52 is connected to the positive electrode of the electrostatic generator 51 and grounded, the negative electrode 53 is connected to the negative electrode of the electrostatic generator 51, and the negative electrode 53 adopts the shape of a planar mesh electrode. The cavity 7 is filled with high-concentration charged water mist, which can effectively absorb tiny dust of various sizes flowing through the air. The adsorbed particles move to the positive electrode under the force of the electric field and are collected. The collected sewage is collected into the sewage storage box 6 through the diversion groove under the positive electrode.

The sewage storage box 6 is located below the positive electrode, and placed side by side with the water storage box 43 at the bottom of the cavity 7 . For the convenience of sewage cleaning and replacement, both the sewage storage box 6 and the water storage box 43 can be easily taken out.

The working principle of the utility model is as follows:

During use, the air intake fan 2 speeds up the air flow and increases the flow of air entering the air cleaner. The front filter screen 31 and the rear filter screen 32 filter large-sized dust particles in the air, such as hair, large particles of dust, pollen particles, plant seeds, etc. Tiny dust particles in the air, such as PM2.5, need to be purified by charged water mist adsorption. The water mist generator 41 generates water mist to fill the cavity 7 . The water mist concentration in the cavity 7 is adjusted by controlling the power of the water mist generator 41 . The electrostatic generator 51 applies an electrostatic voltage between the positive metal mesh 52 and the negative electrode 53, wherein the positive metal mesh 52 is grounded, and the negative electrode 53 is a negative voltage. When the water mist particles pass through the negative electrode 53, they are negatively charged through induction, charge exchange and other principles, so that they have the ability to actively absorb tiny dust in the air. The electrostatic voltage can be adjusted by adjusting the input DC voltage of the electrostatic generator 51 . The numerical value of the electrostatic voltage is selected according to the concentration of dust in the environment and the concentration of water mist in the cavity 7 . The charged water mist around the negative electrode 53 gathers on the positive metal mesh 52 under the action of the electric field force, and is finally collected into the sewage storage box 6 .

The air purifier actively absorbs various micro-sized dust particles flowing through the air by forming a high-concentration charged water mist in a confined space. The concentration of water mist and the amount of charge can be automatically adjusted according to the actual situation to adapt to the air quality of various places and people's living habits. Due to the use of charged water mist adsorption and dedusting, the water mist particles that absorb dust are collected in the sewage storage box 6, so there is no need for frequent replacement of consumables, which reduces the cost of use and is also convenient for home use. At the same time, because the air purifier uses water mist as the working medium, the humidity of the dry air increases after passing through the water mist, and it also has the effect of a humidifier.

Claims (10)

1. An air purifier, characterized in that it includes a purifier housing (1), an air intake fan (2), a filter screen (3), a water mist generating device (4), an electrostatic device (5) and a sewage storage box (6); The air inlet fan is installed on the inside of the air inlet or air outlet of the purifier shell (1); the filter screen (3) includes a front filter screen (31) and a rear filter screen (32), which are respectively installed in The inner side of the air outlet and air inlet of the purifier, and form a closed cavity (7) with the purifier shell (1); the water mist generating device (4) is installed at the bottom of the closed cavity (7) for generating high Concentrate fine water mist particles and make them fill the cavity (7); the electrostatic device (5) is installed inside the purifier; the electrostatic device (5) cooperates with the water mist generating device (4) to make the water mist particles charge, the sewage storage box (6) is installed at the bottom of the purifier. 2. The air purifier according to claim 1, characterized in that: the air intake fan (2) is installed on the air intake side of the shell (1) of the purifier. 3. The air purifier according to claim 1, characterized in that: the sewage storage box (6) and the water mist generating device (4) are placed side by side. 4. The air purifier according to claim 1, characterized in that: the filter screen (3) adopts a detachable frame, and the filter screen adopts a washable filter material. 5. The air purifier according to claim 1, characterized in that: the water mist generator (4) comprises a water mist generator (41), a circuit module (42) and a water storage box (43); The water mist generator (41) adopts an ultrasonic water mist generator, is placed in the water storage box (43), and the circuit module (42) supplies power for it. 6. The air purifier according to claim 5, characterized in that: the circuit module (42) is installed at the bottom inside the air inlet of the purifier housing (1). 7. The air purifier according to claim 5, characterized in that: both the water storage box (43) and the sewage storage box (6) are detachable. 8. The air purifier according to claim 5, characterized in that: the electrostatic device (5) is composed of an electrostatic generator (51), a positive metal mesh (52) and a negative electrode (53), and the positive metal The net (52) is connected to the positive pole of the static generator (51) and grounded, and the negative electrode (53) is connected to the negative pole of the static generator (51); The water box (43) is installed below the negative electrode (53); the positive metal mesh (52) is parallel to the negative electrode (53), the negative electrode (53) is installed on the air inlet side, and the positive metal mesh (52) is installed on the side of the air outlet. 9. The air purifier according to claim 8, characterized in that: a diversion groove for diverting the collected sewage into the sewage storage box (6) is provided under the positive electrode metal mesh (52). 10. The air purifier according to claim 8, characterized in that: the electrostatic generator (51) is installed in a sealed cavity at the top of the shell (1) of the purifier.