CN112268344A

CN112268344A - Air purifier

Info

Publication number: CN112268344A
Application number: CN202011339635.6A
Authority: CN
Inventors: 林章鹏; 梁少棠; 刘敏; 朱铭佳; 陈荣武
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2020-11-25
Filing date: 2020-11-25
Publication date: 2021-01-26

Abstract

The present invention provides an air purifier, comprising: the air suction port is arranged on the shell; further comprising: the purifying air channel is arranged in the shell; the filtering component comprises a filter screen, and the filter screen is arranged in the purifying air channel; the microwave generating assembly is arranged on the shell and forms a microwave field at least covering the filter screen. The bacteria and the viruses contain components capable of absorbing microwaves, such as proteins, nucleic acids and the like, the proteins can be denatured after the microwaves are absorbed, and hydrogen bonds of the nucleic acids can be broken under the high-frequency oscillation of the microwaves, so that the bacteria and the viruses can be killed and killed by the microwaves. The filter screen is covered by a microwave field, and the microwaves can penetrate through the filter screen, so that bacteria and viruses attached to the filter screen are completely exposed to the microwave field, and thus, sufficient and sufficient disinfection is realized.

Description

Air purifier

Technical Field

The invention relates to the technical field of air purification equipment, in particular to an air purifier.

Background

Air pollution is an increasingly serious problem faced by the current human living needs, and various air purifiers are appeared on the market and applied to home environments, office environments, supermarkets, hospitals and other public places. The air purifier can filter harmful substances in the air, the harmful substances are mainly dust and bacteria and viruses, and the air purifier is provided with a filter screen capable of filtering the harmful substances. However, the bacteria and viruses attached to the filter screen are not killed, and as the use time of the air purifier increases, the bacteria and viruses attached to the filter screen can propagate even on the filter screen.

Air purifier on the market usually disappears through the mode of heating to the filter screen and kills bacterial virus, but when heating the filter screen, the air also can be heated to the air temperature that leads to air purifier output is higher, causes the ambient temperature to rise.

In the market, a sterilization and disinfection mode adopting a plasma purification technology is also adopted to sterilize and kill bacteria and viruses on a filter screen. However, the plasma sterilization technology generates ozone, which is an intermediate pollutant generated in the sterilization process, and an additional ozone adsorption device is required.

Disclosure of Invention

Therefore, the technical problem to be solved by the invention is to overcome the defects that the temperature of output air is increased or intermediate pollutants are generated when the filter screen of the air purifier is sterilized in the prior art, thereby providing the air purifier.

An air purifier, comprising:

the air suction port is arranged on the shell;

further comprising:

the purifying air channel is arranged in the shell;

the filtering component comprises a filter screen, and the filter screen is arranged in the purifying air channel;

the microwave generating assembly is arranged on the shell and forms a microwave field at least covering the filter screen.

The purification air duct includes:

an air duct inlet;

an air duct outlet;

the air purification device comprises a plurality of air purification air channels, an air inlet, an air outlet and an opening and closing assembly, wherein the air purification air channels are arranged in the air inlet and the air outlet, and the air purification air channels are communicated with the air inlet and the air outlet respectively.

The opening and closing assembly comprises:

the baffle is movably connected to the purification air channel and provided with a first position for closing the purification air channel and a second position for moving to the outside of the purification air channel;

the opening and closing motor is arranged on the purification air duct or on the shell, and the baffle is connected with the output end of the opening and closing motor.

The height of the air duct outlet is lower than that of the air duct inlet.

The filter assembly further comprises:

the fixing piece is arranged on the inner wall of the purification air channel, and the filter screen is arranged on the fixing piece.

The fixing piece is made of glass.

The microwave generating assembly comprises:

a magnetron;

and one end of the waveguide is connected with the output end of the magnetron, and the other end of the waveguide extends to the filter screen.

The microwave generating assembly further comprises:

the agitator is arranged at the output end of the waveguide and faces the filter screen.

The filter screen is provided with a ventilation area, and the height of the ventilation area is not more than that of the air channel outlet of the purification air channel.

The purification air duct has two, two the wind channel export in purification air duct all communicates the fan.

The technical scheme of the invention has the following advantages:

1. the present invention provides an air purifier, comprising: the air suction port is arranged on the shell; further comprising: the purifying air channel is arranged in the shell; the filtering component comprises a filter screen, and the filter screen is arranged in the purifying air channel; the microwave generating assembly is arranged on the shell and forms a microwave field at least covering the filter screen.

The bacteria and the viruses contain components capable of absorbing microwaves, such as proteins, nucleic acids and the like, the proteins can be denatured after the microwaves are absorbed, and hydrogen bonds of the nucleic acids can be broken under the high-frequency oscillation of the microwaves, so that the bacteria and the viruses can be killed and killed by the microwaves. The filter screen is covered by a microwave field, and the microwaves can penetrate through the filter screen, so that bacteria and viruses attached to the filter screen are completely exposed to the microwave field, and thus, sufficient and sufficient disinfection is realized. For the filter screen, can not heated by microwave, therefore this scheme utilizes when the microwave disinfects to bacterium, virus on the filter screen, can not heat the filter screen, also can not heat the air, consequently can not produce the higher air of air purifier output temperature because of the work of microwave disinfection. On the other hand, the sterilization of the bacteria and the viruses by the microwaves does not generate intermediate pollutants such as ozone generated in the prior art, so that the bacteria and the viruses are sterilized by the microwaves without arranging additional treatment equipment for treating the intermediate pollutants.

2. The air purifier provided by the invention, the purifying air channel comprises: an air duct inlet; an air duct outlet; the air purification device comprises a plurality of air purification air channels, an air inlet, an air outlet and an opening and closing assembly, wherein the air purification air channels are arranged in the air inlet and the air outlet, and the air purification air channels are communicated with the air inlet and the air outlet respectively.

The subassembly that opens and shuts can open or close the wind channel entry according to the work demand to when air purifier closed or standby, impurity got into and pollutes the purification wind channel.

3. The invention provides an air purifier, wherein the opening and closing assembly comprises: the baffle is movably connected to the purification air channel and provided with a first position for closing the purification air channel and a second position for moving to the outside of the purification air channel; the opening and closing motor is arranged on the purification air duct or on the shell, and the baffle is connected with the output end of the opening and closing motor.

When the purification air channel is closed or opened by controlling the baffle through the opening and closing motor, the opening degree of the baffle can be controlled by the opening and closing motor, so that the purpose of adjusting the purification air quantity is realized.

4. According to the air purifier provided by the invention, the height of the air channel outlet is lower than that of the air channel inlet.

The air duct outlet height and the air duct inlet height are staggered, the movement direction of the air flow in the purification air duct can be turned, the air flow direction is changed when the air enters, and therefore the air flow is more fully filtered at the filter screen.

5. The invention provides an air purifier, the filter assembly further comprises: the fixing piece is arranged on the inner wall of the purification air channel, and the filter screen is arranged on the fixing piece.

The mounting can be injectd the position that sets up of filter screen on the one hand, and on the other hand can be injectd the self shape of filter screen, and when the impact force increase of air current to the filter screen, the filter screen takes place deformation easily, and under the fixed of mounting is injectd, the performance that the filter screen resisted the wind pressure obtains promoting.

6. According to the air purifier provided by the invention, the fixing piece is made of glass.

The part of the filter screen connected with the fixing piece is not directly exposed in the air environment, and the microwave can penetrate through the glass, so that the connecting part of the filter screen and the fixing piece can be fully killed by the microwave.

7. The invention provides an air purifier, wherein the microwave generating assembly comprises: a magnetron; and one end of the waveguide is connected with the output end of the magnetron, and the other end of the waveguide extends to the filter screen.

The microwave can be reflected and transmitted in the waveguide, on one hand, the waveguide can accurately transmit the microwave energy to the filter screen, and on the other hand, the waveguide can prevent the microwave energy from dissipating in the transmission process, so that the energy consumption is saved, and the filter screen is ensured to have sufficient microwave energy.

8. The air purifier of claim 7, wherein the microwave generating assembly further comprises: the agitator is arranged at the output end of the waveguide and faces the filter screen.

The stirrer is positioned at the output end of the waveguide, and can stir the microwave energy passing through the stirrer before the microwave energy reaches the filter screen, so that the microwave energy acts on the filter screen more uniformly.

9. According to the air purifier provided by the invention, the filter screen is provided with the ventilation area, and the height of the ventilation area is not more than the height of the air channel outlet of the purification air channel.

Because the microwave energy is conveyed towards the filter screen, if the outlet of the air duct is arranged opposite to the filter screen, the microwave energy can be leaked, and energy waste is caused. In the scheme, the height of the ventilation area is not more than the height of the outlet of the purification air channel, so that more microwave energy can be reflected after penetrating through the filter screen, the density of the microwave energy at the filter screen is increased, and the sterilization effect on bacterial viruses is improved.

10. The air purifier provided by the invention has two purifying air channels, and the air channel outlets of the two purifying air channels are both communicated with the fan.

The air purifier can improve the efficiency of air purification by arranging a plurality of purification air channels. On the other hand, when the purifying air duct on one side is maintained or stopped, the air can be independently purified by the purifying air duct on the other side.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic view of the air flow path within the air purifier of the present invention;

FIG. 2 is a schematic view of the right side of the clean air duct closed as compared to the air purifier shown in FIG. 1;

FIG. 3 is a schematic view of the left and right clean air ducts closed based on FIG. 1;

FIG. 4 is a schematic cross-sectional view taken along line A-A in FIG. 3 showing the distribution of purge air within the housing;

FIG. 5 is a perspective view showing the structure of the fixing member;

fig. 6 is an alternative structural schematic diagram for changing the shape of the ventilation zone relative to fig. 5.

Description of reference numerals:

1. a housing; 11. a fan; 2. an inner shell; 3. purifying the air duct; 31. an air duct inlet; 32. an air duct outlet; 33. an opening and closing assembly; 331. a baffle plate; 332. an opening and closing motor; 4. a filter assembly; 41. filtering with a screen; 42. a fixing member; 421. a ventilation zone; 5. a microwave generating assembly; 51. a magnetron; 52. a waveguide; 53. a stirrer; 54. a stirring motor.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

Example 1

The present embodiment provides an air purifier, as shown in fig. 1, including: the air conditioner comprises a shell 1, wherein an air suction inlet is formed in the shell 1, and an accommodating cavity is formed in the shell 1; further comprising: the inner shell 2 is arranged inside the outer shell 1, and the inner shell 2 forms a filter cavity; the purification air duct 3 is arranged in the filtering cavity; the filtering component 4 comprises a filter screen 41, and the filter screen 41 is arranged in the purifying air duct 3; and the microwave generating assembly 5 is arranged in the accommodating cavity, and the microwave generating assembly 5 forms a microwave field at least covering the filter screen 41. The bacteria and the viruses contain components capable of absorbing microwaves, such as proteins, nucleic acids and the like, the proteins can be denatured after the microwaves are absorbed, and hydrogen bonds of the nucleic acids can be broken under the high-frequency oscillation of the microwaves, so that the bacteria and the viruses can be killed and killed by the microwaves. The screen 41 is covered with a microwave field, and microwaves can penetrate the screen 41, so that bacteria and viruses attached to the screen 41 are completely exposed to the microwave field, thereby achieving sufficient and sufficient disinfection. For the filter screen 41, the filter screen is not heated by microwave, so when the microwave is used for sterilizing bacteria and viruses on the filter screen 41, the filter screen 41 is not heated, and air is not heated, so that the problem that the air purifier outputs air with higher temperature due to microwave sterilization work is solved. On the other hand, the sterilization of the bacteria and the viruses by the microwaves does not generate intermediate pollutants such as ozone generated in the prior art, so that the bacteria and the viruses are sterilized by the microwaves without arranging additional treatment equipment for treating the intermediate pollutants.

Specifically, as shown in fig. 1 to 3, the housing 1 is provided with a purge inlet through which air is sucked into the purge air duct 3. The power of the air movement comes from the fan 11 arranged on the top of the shell 1. In this embodiment, as shown in fig. 1, the purifying air duct 3 is a rectangular box body disposed in the outer shell 1, and the rectangular box body and the fan 11 are both disposed in the inner shell 2, so that when the air suction end of the fan 11 sucks air toward the inner space of the inner shell 2, the air in the purifying air duct 3 can be driven to move toward the fan 11. As an alternative embodiment, the purge air duct 3 is a channel in the form of a strip.

On the basis of the above embodiments, as a further limited embodiment, as shown in fig. 1 to 3, the purge air duct 3 includes: a duct inlet 31; a duct outlet 32; the opening and closing assembly 33 is provided with a plurality of opening and closing assemblies 33, the opening and closing assemblies 33 are respectively arranged on the air duct inlet 31 and the air duct outlet 32, and the opening and closing assemblies 33 have a first state of closing the purification air duct 3 and a second state of opening the purification air duct 3. The opening and closing assembly 33 can open or close the air duct inlet 31 according to the working requirement, so that the impurities enter and pollute the purifying air duct 3 when the air purifier is closed or in standby. As an alternative embodiment, at least one of the duct outlet 32 and the duct inlet 31 is in a normally open state, and any opening and closing assembly 33 is omitted on the basis of fig. 1 to 3, so that the purifying function of the air purifier can still be realized.

In addition to the above-described embodiments, as a further limited embodiment, as shown in fig. 1, the opening and closing assembly 33 includes: the baffle 331 is movably connected to the purification air duct 3, and the baffle 331 has a first position for closing the purification air duct 3 and a second position for moving to the outside of the purification air duct 3; the opening and closing motor 332 is arranged on the purification air duct 3 or on the shell 1, and the baffle 331 is connected with the output end of the opening and closing motor 332. When the baffle 331 is controlled by the opening and closing motor 332 to close the purification air duct 3 or open the purification air duct 3, the opening degree of the baffle 331 can be controlled by the opening and closing motor 332, so that the purpose of adjusting the purification air volume is achieved. Alternatively, the baffle 331 may be a stopper having a certain thickness, and the baffle 331 and/or the stopper are/is slidably connected in the purification air duct 3 to close the purification air duct 3 by a sliding motion, or are slid to move away and open the opening of the purification air duct 3. As another alternative, the baffle 331 is rotatably connected to the opening of the clean air duct 3, which is referred to as the air duct inlet 31 and the air duct outlet 32 of the clean air duct 3 in this embodiment.

On the basis of the above embodiment, as a further limited embodiment, as shown in fig. 1, the height of the air duct outlet 32 is lower than the height of the air duct inlet 31. The height of the air duct outlet 32 and the height of the air duct inlet 31 are staggered with each other, so that the movement direction of the air flow in the purification air duct 3 can be changed, the air flow direction is changed when the air enters, and the air flow is more fully filtered at the filter screen 41.

Specifically, in this embodiment, taking the purification air duct 3 located on the right side inside the housing 1 in fig. 1 as an example, the purification air duct 3 itself is a rectangular box, the filtering component 4 disposed in the box divides the internal space of the box into two parts, the air duct inlet 31 is located at the top of the space on the right side of the filtering component 4, the air duct outlet 32 is located on the left side wall of the space on the left side of the filtering component 4, and the movement path of the air sucked into the purification air duct 3 is turned at the filter screen 41 to form an L-shaped winding path. Alternatively, the duct inlet 31 may be located at any position on the inner wall of the space to the right of the filter assembly 4. As another alternative, the duct outlet 32 is located at any point on the interior wall of the space to the left of the filter assembly 4. Here, since the filter 41 itself can be passed through by air, the filter 41 itself does not belong to the above-mentioned inner wall of the left space or the inner wall of the right space.

On the basis of the above embodiment, as a further limited embodiment, as shown in fig. 1, the filter assembly 4 further includes: and the fixing piece 42 is arranged on the inner wall of the purification air channel 3, and the filter screen 41 is arranged on the fixing piece 42. The fixing member 42 can define the setting position of the filter screen 41 on the one hand, and can define the self shape of the filter screen 41 on the other hand, when the impact force of the airflow to the filter screen 41 is increased, the filter screen 41 is easily deformed, and under the fixing definition of the fixing member 42, the performance of the filter screen 41 against the wind pressure is improved.

The shape of the fixing element 42 is not particularly limited, in this embodiment, as shown in fig. 1, the fixing element 42 is a rectangular glass plate, the filter screen 41 is sandwiched between two layers of the fixing elements 42, and with reference to fig. 5 and 6, a through hole is formed in the middle of the fixing element 42 to form a ventilation area 421, and the ventilation area 421 allows air to enter and pass through the filter screen 41. The portion of the screen 41 to which the fixing member 42 is connected is not directly exposed to the air, and since the microwave can penetrate through the glass, the connecting portion of the screen 41 and the fixing member 42 can be sufficiently killed by the microwave. Specifically, as shown in fig. 5 and 6, the shape of the ventilating area 421 may be a rectangle or a circle, or may be another polygon or an ellipse. The fixing member 42 is made of glass in this embodiment, and as an alternative embodiment, the fixing member may be made of a material with relatively small microwave loss, such as a ceramic plate or a microcrystalline plate.

On the basis of the above embodiment, as a further limited embodiment, as shown in fig. 1, the height of the ventilating area 421 is not more than the height of the duct outlet 32 of the clean air duct 3. Because microwave energy is delivered toward the screen 41, the duct outlet 32, if disposed directly opposite the screen 41, would cause the microwave energy to leak out, resulting in wasted energy. In the scheme, the height of the ventilation area 421 is not more than the height of the outlet of the purification air duct 3, so that more microwave energy can be reflected after penetrating through the filter screen 41, the density of the microwave energy at the filter screen 41 is increased, and the sterilization effect on bacteria and viruses is improved.

On the basis of the above embodiment, as a further limited embodiment, as shown in fig. 1, the microwave generating assembly 5 includes: a magnetron 51; and a waveguide 52 having one end connected to an output end of the magnetron 51 and the other end extending toward the screen 41. The microwave can be reflected and propagated in the waveguide 52, on one hand, the waveguide 52 can accurately transmit the microwave energy to the filter screen 41, and the waveguide 52 can also prevent the microwave energy from dissipating in the transmission process, so that the energy consumption is saved, and the sufficient microwave energy at the filter screen 41 is ensured.

Specifically, as shown in fig. 1, the microwave generating assembly 5 further includes: and the stirrer 53 is arranged at the output end of the waveguide 52, and the stirrer 53 is arranged towards the filter screen 41. An agitator 53 is located at the output end of the waveguide 52 to agitate the microwave energy passing through the agitator 53 before it reaches the screen 41, thereby causing the microwave energy to act more uniformly on the screen 41.

In order to drive the stirrer 53 to rotate, a stirring motor 54 is provided in the present embodiment, and an output end of the stirring motor 54 is connected to the stirrer 53.

The structure of the stirrer 53 itself is not limited to a large number, and may be a disk-shaped structure or a radial structure. In this embodiment, the stirrer 53 may be an antenna assembly in a microwave oven. Meanwhile, the stirring motor 54 itself is provided on the inner casing 2 or the outer casing 1 as long as the driving of the stirrer 53 can be achieved. As a modification, a transmission structure may be provided between the fan 11 and the agitator 53, and after the fan 11 itself is started, the agitator 53 may be driven to rotate by the power of the fan 11 itself, so as to fully utilize the kinetic energy generated by the fan 11 itself. The transmission structure itself may adopt a gear box, a belt, etc., and is not limited in this embodiment.

In addition to the above embodiments, as a further limited embodiment, as shown in fig. 3 and 4, there are two cleaning air ducts 3, and the air duct outlets 32 of both cleaning air ducts 3 are communicated with the fan 11. The arrangement of a plurality of purification wind channels 3 can improve air purifier's efficiency to air purification. On the other hand, when the purifying air duct 3 on one side is maintained or stopped, air purification can be independently performed by the purifying air duct 3 on the other side. As an alternative embodiment, the purge air duct 3 is one. As another alternative, the number of the purge air ducts 3 is three or more.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.

Claims

1. An air purifier, comprising:

the air conditioner comprises a shell (1), wherein an air suction inlet is formed in the shell (1), and an accommodating cavity is formed in the shell (1);

it is characterized by also comprising:

the inner shell (2) is arranged inside the outer shell (1), and the inner shell (2) forms a filter cavity;

the purification air duct (3) is arranged in the filtering cavity;

the filtering component (4) comprises a filter screen (41), and the filter screen (41) is arranged in the purifying air channel (3);

the microwave generating assembly (5) is arranged in the accommodating cavity, and the microwave generating assembly (5) forms a microwave field at least covering the filter screen (41).

2. The air purifier according to claim 1, wherein the purification air duct (3) comprises:

an air duct inlet (31);

the air duct outlet (32), the air duct inlet (31) and the air duct outlet (32) are respectively arranged on the inner shell (2);

the air purification device comprises a plurality of opening and closing assemblies (33), the opening and closing assemblies (33) are arranged on the air duct inlet (31) and the air duct outlet (32) respectively, and the opening and closing assemblies (33) have a first state of closing the purification air duct (3) and a second state of opening the purification air duct (3).

3. The air purifier according to claim 2, wherein the opening and closing assembly (33) comprises:

the baffle (331) is movably connected to the purification air duct (3), and the baffle (331) has a first position for closing the purification air duct (3) and a second position for moving to the outside of the purification air duct (3);

the opening and closing motor (332) is arranged on the purification air duct (3) or on the shell (1), and the baffle (331) is connected with the output end of the opening and closing motor (332).

4. An air cleaner according to claim 2 or 3, wherein the height of the air duct outlet is lower than the height of the air duct inlet (31).

5. The air purifier according to claim 2 or 3, wherein the filter assembly (4) further comprises:

fixing piece (42) is located on the inner wall of purification wind channel (3), filter screen (41) are located on fixing piece (42).

6. The air cleaner of claim 5, wherein the fixing member (42) is made of glass.

7. Air purifier according to any one of claims 1-3, 6, characterized in that the microwave generating assembly (5) comprises:

a magnetron (51) disposed within the containment chamber;

and one end of the waveguide (52) is connected with the output end of the magnetron (51), and the other end of the waveguide extends to the filter screen (41).

8. The air purifier according to claim 7, wherein the microwave generating assembly (5) further comprises:

an agitator (53) provided at an output end of the waveguide (52), the agitator (53) being disposed toward the screen (41).

9. The air cleaner according to claim 8, further comprising a stirring motor (54), wherein an output end of the stirring motor (54) is connected to the stirrer (53).

10. Air purifier according to any one of claims 1-3, 6 and 8, characterized in that the filter screen (41) is provided with a ventilating area, and the height of the ventilating area does not exceed the height of the air duct outlet (32) of the purifying air duct (3).

11. The air purifier according to any one of claims 1-3, 6 and 8, wherein there are two purifying air channels (3), and the air channel outlets (32) of the two purifying air channels (3) are both communicated with the fan (11).