CN217209729U

CN217209729U - Air purifying device

Info

Publication number: CN217209729U
Application number: CN202220629679.0U
Authority: CN
Inventors: 凌业生; 王墅; 曾焕雄; 毛建平
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2022-03-22
Filing date: 2022-03-22
Publication date: 2022-08-16
Anticipated expiration: 2032-03-22

Abstract

The application relates to an air purification device, air purification device includes: the integrated sterilization device comprises a power supply module, a discharge module and a dust collection and sterilization module, wherein the discharge module is used for discharging to enable particles in air to be charged, and the integrated sterilization module is positioned at the downstream of air flowing through the discharge module and comprises a sterilization part and a dust collection component which are arranged at intervals. When the air purification device is in a sterilization mode, the power supply module is in a second control mode for controlling the sterilization part to ionize to form plasma for sterilizing the dust collection component. This application can start air purification device's the mode of disinfecting earlier when the clean collection dirt component of needs, utilizes the portion of disinfecting to gather dirt component and disinfects, then dismantles collection dirt sterilization module again and cleans, prevents user's secondary infection bacterial virus in the cleaning process.

Description

Air purifying device

Technical Field

The application relates to the technical field of air treatment, in particular to an air purification device.

Background

The traditional air purifier, no matter electric purification static principle or filter screen physical adsorption principle purify air all have a pain point problem, traditional air purifier though can adsorb the bacterial virus who gets rid of in the air, nevertheless all make the bacterial virus in the air collect on the dust collection component surface finally, can cause follow-up user to have the risk of secondary infection bacterial virus when retrieving or wasing the dust collection component like this.

SUMMERY OF THE UTILITY MODEL

Based on this, it is necessary to provide an air purification device aiming at the problem that the traditional air purifier brings the risk of secondary infection of bacteria and viruses to users in the future.

An air purification device comprising:

a power supply module;

the discharging module is used for discharging to charge particles in the air;

a dust collecting and sterilizing module which is positioned at the downstream of the air flowing through the discharging module and comprises a sterilizing part and a dust collecting component which are arranged at intervals;

when the air purification device is in a dust collection mode, the power supply module is in a first control mode for controlling the discharge module to discharge and controlling the dust collection component to adsorb charged particles; when the air purification device is in a sterilization mode, the power module is in a second control mode for controlling the sterilization part to ionize to form plasma for sterilizing the dust collection component.

In one embodiment, the sterilizing part and the power module are further configured to control the formation of an auxiliary electric field between the sterilizing part and the dust collecting member to accelerate the charged particles toward the dust collecting member when the air purifying apparatus is in the dust collecting mode.

In one embodiment, the sterilizing part has a first state and a second state with respect to the dust collecting member; said sterilizing portion of said first state is controlled to be ionizable only to form a plasma; the sterilizing part in the second state is controlled to form the auxiliary electric field only with the dust collecting member;

when the air purification device is in the sterilization mode, the sterilization part is in the first state; when the air purification device is in the dust collection mode, the sterilization part is in the second state.

In one embodiment, the power module applies a voltage between a voltage of the dust collecting member and a voltage of the discharging module to the sterilizing part in the dust collecting mode.

In one embodiment, the sterilizing part comprises a pole plate having a tip part;

when the air purification device is in the sterilization mode, the tip end is opposite to the dust collection component, and the power supply module controls the tip end to be at a high potential relative to the dust collection component so as to ionize to form plasma for sterilizing the dust collection component.

In one embodiment, the plate further has a flat plate portion;

when the air purification device is in the dust collection mode, the flat plate portion is opposite to the dust collection component, and whether the power supply module controls an auxiliary electric field for accelerating the charged particles to move towards the dust collection component to be formed between the flat plate portion and the dust collection component or not is controlled.

In one embodiment, the sterilizing part further comprises a driving part which is connected with the polar plate and drives the polar plate to switch between a first state and a second state relative to the dust collecting component;

when the polar plate is in the first state, the tip part is opposite to the dust collecting component, and the flat plate part is staggered with the dust collecting component; when the polar plate is in the second state, the tip part is staggered with the dust collecting component, and the flat plate part is opposite to the dust collecting component.

In one embodiment, the plate is rotatably disposed with respect to the dust collecting member and is switched between the first state and the second state when rotating by the driving of the driving part.

In one embodiment, the tip portions are provided on both sides of the flat plate portion in a first direction perpendicular to the rotation axis of the plate;

wherein a dimension of the flat plate portion in a second direction perpendicular to the rotation axis of the pole plate and the first direction is smaller than a dimension of itself in the first direction.

In one embodiment, the tip portion comprises a sawtooth portion arranged on a side surface of the flat plate portion in the first direction, and the sawtooth portion extends in a sawtooth shape along the rotation axis of the pole plate;

and/or the tip part comprises a needling part arranged on the side surface of the flat plate part in the first direction, the needling part extends along the rotation axis of the polar plate in a strip shape, and the sectional area of the needling part is gradually reduced along the first direction.

In one embodiment, the dust collecting members include at least two, all of which are arranged side by side at intervals in a direction perpendicular to a direction in which air flows;

the sterilizing part is arranged between two adjacent dust collecting components.

According to the air purification device, in the dust collection mode, outside air enters the air purification device, flows through the discharge module and the dust collection sterilization module successively and flows out of the air purification device finally. When air flows through the discharge module, the discharge module discharges electricity to charge particles in the air. When the charged particles carried by the air pass through the dust collecting and sterilizing module, the charged particles are adsorbed on the dust collecting component, so that the air purification is realized. In the sterilization mode, the air near the sterilization part is ionized to form plasma, the plasma flows onto the dust collecting component and etches and inactivates bacteria and viruses on the dust collecting component, thereby achieving the sterilization effect. When a user needs to clean the dust collecting component in a dust collecting mode of the air purification device for a period of time, the sterilization mode of the air purification device can be started firstly, the sterilization part is used for sterilizing the dust collecting component, and then the dust collecting sterilization module is detached for cleaning, so that the secondary infection of the user with bacteria and viruses in the cleaning process is prevented.

Drawings

FIG. 1 is a schematic view of an air cleaning apparatus in an embodiment of the present application in a dust collection mode;

FIG. 2 is a schematic view of another perspective of the air purification apparatus shown in FIG. 1;

FIG. 3 is a schematic view of the air purification apparatus shown in FIG. 1 in a sterilization mode;

FIG. 4 is a schematic view of another perspective of the air purification apparatus shown in FIG. 3;

FIG. 5 is a schematic view of a sterilization part according to an embodiment of the present application, wherein (a) is a front view and (b) is a top view;

FIG. 6 is a schematic view of a sterilization part according to another embodiment of the present application, wherein (a) is a front view and (b) is a top view;

fig. 7 is a logic control diagram of an air purification apparatus according to an embodiment of the present application.

Reference numerals: 100. an air purification device; 10. a power supply module; 20. a discharge module; 21. a tungsten filament; 30. a dust collecting and sterilizing module; 31. a dust collecting member; 32. a sterilization part; 321. a pole plate; 321a, a tip portion; 321b, a flat plate portion; 40. a wire; 50. a frame body; 60. and a bearing.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of embodiments in many different forms than those described herein and that modifications may be made by one skilled in the art without departing from the spirit and scope of the application and it is therefore not intended to be limited to the specific embodiments disclosed below.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Referring to fig. 1 and 3, an embodiment of an air purification apparatus 100 includes a power module 10, a discharge module 20, and an integrated sterilization module 30, where the discharge module 20 is used for discharging electricity to charge particles in air, and the integrated sterilization module is located downstream of air flowing through the discharge module 20 and includes a sterilization part 32 and a dust collection component 31 that are arranged at intervals. When the air purification apparatus 100 is in the dust collection mode, the power module 10 is in a first control mode for controlling the discharge module 20 to discharge and controlling the dust collection member 31 to adsorb the charged particles, and when the air purification apparatus 100 is in the sterilization mode, the power module 10 is in a second control mode for controlling the sterilization part 32 to ionize and form plasma for sterilizing the dust collection member 31.

The power module 10 is electrically connected to the discharge module 20, the dust collection member 31, and the sterilization part 32 through wires 40, respectively. The power module 10 may include one or more of a dc power supply, an ac power supply, a high rf power supply, etc., and is not particularly limited as long as it can control the discharging module 20 to discharge and control the dust collecting member 31 to adsorb charged particles in the first control mode, and can control the sterilizing part 32 to ionize to form plasma for sterilizing the dust collecting member 31 in the second control mode.

The discharge module 20 is a device capable of charging particles in the air in a pressurized (positive or negative) state. The method specifically comprises the following steps: the discharge module 20 includes a tungsten filament 21, and the tungsten filament 21 is tip-discharged and ionizes air after being energized with high voltage, so that charged particles are generated in the air, and the charged particles are combined with particles in the air to charge the particles. Of course, the specific type of the discharge module 20 is not limited herein as long as the particles in the air can be charged in a pressurized state.

When the air cleaning device 100 is in the dust collection mode (as shown in fig. 1 and 2), the power module 10 is in the first control mode. In the first control mode, the power module 10 controls the discharge module 20 to discharge electricity, which controls the dust collection member 31 to adsorb charged particles. The method specifically comprises the following steps: the power module 10 applies a positive high voltage to the discharge module 20 and connects the dust collecting member 31 to ground (zero potential), and then the discharge module 20 is pressurized to make the particles in the air positively charged, and the positively charged particles flow to the dust collecting member 31 with a lower potential under the action of the electric field and finally are adsorbed on the dust collecting member 31, so that the dust collecting of the dust collecting member 31 is realized. The method can also be as follows: the power module 10 applies a negative high voltage to the discharge module 20 and connects the dust collecting member 31 to ground (zero potential), and at this time, the discharge module 20 is pressurized to make the particles in the air negatively charged, and the negatively charged particles flow to the dust collecting member 31 with higher potential under the action of the electric field and are finally adsorbed on the dust collecting member 31, so that dust collection by the dust collecting member 31 is realized.

When the air cleaning device 100 is in the sterilization mode (as shown in fig. 3 and 4), the power module 10 is in the second control mode. In the second control mode, the power module 10 does not pressurize the discharge module 20, and controls the sterilizing part 32 to ionize and generate plasma capable of etching and extinguishing bacteria, viruses, and the like on the dust collecting member 31. The sterilization part 32 may be, but not limited to, a plasma generator, and the power module 10 controls the plasma generator to generate plasma as a power source of the plasma generator, and the generated plasma is released into the air to perform an etching inactivation treatment on bacteria, viruses, and the like on the dust collection member 31. The plasma generating device may be a plasma generating device commonly used in the art, such as an arc plasma generator, a high-frequency induction plasma generator, and the like, and the specific type thereof is not limited and described herein.

The dust collecting member 31 may be a dust collecting plate, a dust collecting column, a dust collecting sheet, etc., and its specific form is not limited herein. Understandably, the dust collecting member 31 has conductivity.

In the air purification apparatus 100, in the dust collection mode, the external air enters the air purification apparatus 100, flows through the discharge module 20 and the dust collection and sterilization module 30 in sequence, and finally flows out of the air purification apparatus 100. As the air flows through the discharge module 20, the discharge module 20 discharges to charge particles in the air. The air is adsorbed on the dust collecting member 31 while carrying charged particles through the dust collecting and sterilizing module 30, thus achieving the purification of the air. In the sterilization mode, the air near the sterilization part 32 is ionized to form plasma, and the plasma flows to the dust collection member 31 to etch and inactivate bacteria and viruses on the dust collection member 31, thereby achieving the sterilization effect.

When the user needs to clean the dust collecting member 31 for a period of time using the dust collecting mode of the air cleaning apparatus 100, the sterilization mode of the air cleaning apparatus 100 can be started first, the sterilization part 32 is used to sterilize the dust collecting member 31, and then the dust collecting and sterilizing module 30 is detached to clean, so as to prevent the user from being infected with bacteria and viruses again during the cleaning process.

In some embodiments of the present application, the sterilization part 32 and the power module 10 are configured such that when the air purification apparatus 100 is in the dust collection mode, the power module 10 controls the sterilization part 32 and the dust collection member 31 to form an auxiliary electric field therebetween that accelerates the movement of the charged particles toward the dust collection member 31.

At this time, the sterilization part 32 is configured to form an auxiliary electric field with the dust collection member 31 under the control of the power module 10, and by the auxiliary electric field, the charged particles in the air are accelerated to move toward the dust collection member 31, so that the collection of the particulate matter in the air is accelerated, and the sterilization part also contributes to the improvement of the collection amount of the particulate matter, and the air purification effect.

Of course, in other embodiments, the power module 10 may not control the auxiliary electric field formed between the sterilization part 32 and the dust collection member 31. When the auxiliary electric field exists, the dust collection of the dust collection component 31 can be accelerated, but the energy consumption is higher, and when the auxiliary electric field does not exist, the dust collection efficiency is slightly poor, but the energy consumption is lower, so that a user can conveniently select the dust collection component according to the actual purification environment, and the working mode of the air purification equipment for the user to select is added. For example, the mode in which the power module 10 controls the auxiliary electric field formed between the sterilizing part 32 and the dust collecting member 31 is the enhanced dust collecting mode, and the mode in which the power module 10 does not control the auxiliary electric field formed between the sterilizing part 32 and the dust collecting member 31 is the normal dust collecting mode.

The auxiliary electric field is formed when there is a potential difference between the sterilization part 32 and the dust collecting member 31. When the discharge module 20 is at a high potential with respect to the dust collection member 31, and the particles in the air are positively charged, the sterilization part 32 is also required to be at a high potential with respect to the dust collection member 31, so as to form a first auxiliary electric field between the polar plate 321 and the dust collection member 31, which accelerates the positively charged particles toward the dust collection member 31. When the discharge module 20 is at a low potential with respect to the dust collecting member 31, and the particles in the air are negatively charged, the sterilizing part 32 is required to be at a low potential with respect to the dust collecting member 31, so as to form a second auxiliary electric field between the polar plate 321 and the dust collecting member 31, which accelerates the positively charged particles toward the dust collecting member 31.

Of course, in the dust collection mode, the power module 10 may not control the auxiliary electric field to be formed between the sterilization part 32 and the dust collection member 31 in the second state.

In order to realize that the sterilization part 32 can form plasma through ionization and an auxiliary electric field with the dust collecting member 31 under the control of the power module 10, the sterilization part 32 may be configured by adding an electrode plate 321 capable of forming the auxiliary electric field with the dust collecting member 31 in an energized state to the structure of the conventional plasma generator, and the electrode plate 321 may not be energized in a sterilization mode. Of course, the structure of the sterilization unit 32 is not limited to this.

In some embodiments of the present application, referring to fig. 1 and 3 (the sterilization part 32 is in the second state in the embodiment of fig. 1, and the sterilization part 32 is in the first state in the embodiment of fig. 3), the sterilization part 32 has a first state and a second state with respect to the dust collecting member 31, the sterilization part 32 in the first state is controlled to be ionizable only to form plasma, and the sterilization part 32 in the second state is controlled to be ionizable only to form the aforementioned auxiliary electric field with the dust collecting member 31. When the air cleaning device 100 is in the sterilization mode, the sterilization unit 32 is in the first state, and when the air cleaning device 100 is in the dust collection mode, the sterilization unit 32 is in the second state.

The sterilizing part 32 can only electrically form plasma under the control of the power module 10 when it is in the first state with respect to the dust collecting member 31, and the sterilizing part 32 can only form an auxiliary electric field with the dust collecting member 31 under the control of the power module 10 when it is in the second state with respect to the dust collecting member 31. Thus, when the air purification apparatus 100 is in the dust collection mode or the sterilization mode, the sterilization unit 32 can be controlled to generate a stronger effect (sterilization or accelerated dust collection) by using the same energy consumption, and the two effects can be generated by the sterilization unit 32 in the dust collection mode and the sterilization mode, which is helpful to improve the energy consumption utilization rate.

Of course, in other embodiments, the feasibility of a solution in which the sterilization part 32 simultaneously produces two effects (sterilization and acceleration of dust collection) in the dust collection mode and the sterilization mode is not excluded.

For example, the sterilization part 32 is formed by adding a plate 321 which can form an auxiliary electric field with the dust collecting member 31 in an energized state to the structure of the conventional plasma generator. When only the plasma generator is controlled to be energized, the sterilizing part 32 is in the first state. When only the control electrode plate 321 is energized, the sterilizing unit 32 is in the second state. Of course, the specific behavior of the sterilization part 32 in the first and second states depends on the specific configuration of the sterilization part 32, and the above is not limited thereto. For example, in the following embodiments, when the flat plate portion 321b of the sterilizing unit 32 is displaced from the dust collecting member 31 and the tip portion 321a is opposed to the dust collecting member 31, the sterilizing unit 32 is in the first state, and when the flat plate portion 321b of the sterilizing unit 32 is opposed to the dust collecting member 31 and the tip portion 321a is displaced from the dust collecting member 31, the sterilizing unit 32 is in the second state.

Specifically, in some embodiments, when the air cleaning apparatus 100 is in the dust collection mode, the power module 10 applies a voltage between the voltage of the dust collection member 31 and the voltage of the discharge module 20 to the sterilization part 32. In this case, the intensity of the auxiliary electric field is smaller than that between the discharge module 20 and the dust collection member 31, so that not only can power consumption be reduced, but also electric field interference can be reduced. Alternatively, the voltage applied to the sterilization part 32 by the power module 10 is half of the voltage applied to the discharge module 20.

Of course, in other embodiments, the feasibility of the power module 10 applying the same voltage to the sterilization part 32 and the discharge module 20 is not excluded.

In some embodiments of the present application, referring to fig. 5 to 6, the sterilization part 32 includes a pole plate 321, the pole plate 321 has a tip portion 321a, when the air purification apparatus 100 is in the sterilization mode, the tip portion 321a abuts against the dust collection member 31, and the power module 10 controls the tip portion 321a to have a high potential relative to the dust collection member 31 so as to ionize and form plasma for sterilizing the dust collection member 31.

The electrode plate 321 has conductivity and is electrically connected to the power module 10. In the sterilization mode, when the power module 10 applies a high voltage to the pole plate 321 and makes the dust collecting member 31 have a low potential, the tip portion 321a of the pole plate 321 can discharge electricity to the dust collecting member 31 and ionize air between the pole plate 321 and the dust collecting member 31 to form plasma, and the plasma can etch and inactivate bacteria and viruses on the dust collecting member 31, thereby achieving the sterilization effect.

In this case, the dust collecting member 31 is used in combination with the plate 321 such that plasma is formed between the plate 321 and the dust collecting member 31, and thus, the structure is simple and the cost is low, compared to the case where a plasma generator is directly used as the sterilizing part 32.

The pointed portion 321a is pointed toward the dust collecting member 31 when the dust collecting member 31 is opposite to the dust collecting member 31, i.e., the end area is small. The tip portion 321a may have a triangular prism shape, a needle shape, or the like, and is not particularly limited.

In some embodiments of the present application, the polar plate 321 further has a flat plate portion 321b, and when the air purification apparatus 100 is in the dust collection mode, the flat plate portion 321b is opposite to the dust collection component 31, and whether the power module 10 controls an auxiliary electric field formed between the polar plate 321 and the dust collection component 31 to accelerate the charged particles toward the dust collection component 31.

The auxiliary electric field is an electric field that can accelerate the charged particles toward the dust collecting member 31. When the discharge module 20 is at a high potential with respect to the dust collection member 31, and the particles in the air are positively charged, it is required that the plate 321 is also at a high potential with respect to the dust collection member 31 to form a first auxiliary electric field between the plate 321 and the dust collection member 31 to accelerate the positively charged particles toward the dust collection member 31. When the discharge module 20 is at a low potential with respect to the dust collecting member 31, and the particles in the air are negatively charged, it is required that the plate 321 is also at a low potential with respect to the dust collecting member 31 to form a second auxiliary electric field between the plate 321 and the dust collecting member 31 for accelerating the positively charged particles toward the dust collecting member 31.

In the dust collection mode, when the power module 10 applies a pressure to the plate 321, since the flat plate portion 321b faces the dust collection member 31, the distances between the flat plate portion 321b and the dust collection member 31 are substantially equal, and an electric field (i.e., an auxiliary electric field) having a relatively uniform intensity is formed therebetween, so that the movement of the charged particles toward the dust collection member 31 is accelerated by the electric field.

It is noted that the flat plate portion 321b includes being completely parallel to the dust collection member 31 or being substantially parallel to the dust collection member 31. The substantially parallel case may be a case where the flat plate portion 321b has an undulating structure with a small curvature. That is, the flat plate portion 321b in the present application is not limited to an absolute plane.

In some embodiments, the sterilization part 32 further includes a driving part, the driving part is connected to the substrate and drives the substrate to switch between a first state and a second state relative to the dust collecting member 31, when the pole plate 321 is in the first state, the tip portion 321a is opposite to the dust collecting member 31, and the flat portion 321b is staggered from the dust collecting member 31, when the pole plate 321 is in the second state, the tip portion 321a is staggered from the dust collecting member 31, and the flat portion 321b is opposite to the dust collecting member 31.

When the plate 321 is in a pressurized state, the flat portion 321b is displaced from the dust collecting member 31 and the tip portion 321a faces the dust collecting member 31, so that an auxiliary electric field cannot be formed between the flat portion 321b and the dust collecting member 31, thereby avoiding the influence of the auxiliary electric field on plasma formed by discharge of the tip portion 321 a. When the pole plate 321 is in a pressurized state, when the tip portion 321a is displaced from the dust collecting member 31 and the flat plate portion 321b is opposite to the dust collecting member 31, the tip portion 321a cannot discharge to the dust collecting member 31 to ionize gas therebetween, and the stability of the auxiliary electric field between the flat plate portion 321b and the dust collecting member 31 is not affected by the discharge.

In this case, in the air cleaning apparatus 100, the pole plate 321 has only one effect in the sterilization mode and the dust collection mode, which helps to avoid interference between the flat plate portion 321b and the tip portion 321a in the pressurized state, and thus reduces the sterilization or dust collection acceleration effect.

In the embodiment, the plate 321 is rotatably disposed with respect to the dust collection member 31 and is switched between the first state and the second state when rotating by the driving of the driving part. In this case, the second state and the second state are switched when the pole plate 321 rotates, and the space required for switching can be reduced compared to the case of moving the pole plate, which contributes to downsizing of the air cleaning apparatus 100.

The driving unit may be a motor, or the like, but is not limited thereto.

Understandably, the dust collecting and sterilizing module 30 further includes a frame 50, and the sterilizing part 32 and the dust collecting member 31 are mounted on the frame 50 at intervals. In a further embodiment, the pole plate 321 is rotatably mounted on the frame 50 via a bearing 60.

In further embodiments, referring to fig. 5 and 6, the tip portions 321a are provided at both sides of the flat plate portion 321b in a first direction perpendicular to the rotation axis of the plate 321. The size of the flat plate portion 321b in a second direction perpendicular to the rotation axis of the pole plate 321 and the first direction is smaller than the size of the flat plate portion in the first direction.

At this time, the flat plate portion 321b has the tip portions 321a at both sides, and when one polar plate 321 is located between two dust collecting members 31, the tip portions 321a of the same polar plate 321 can simultaneously face the dust collecting members 31, which helps to simplify the overall structure and reduce the cost. Meanwhile, the flat plate 321b is strip-shaped, and when the tip 321a is opposite to the dust collecting member 31, the distance between the flat plate 321b and the dust collecting member 31 is smaller than that between the tip 321a and the dust collecting member 31, which is helpful to reduce the voltage of the electrode plate 321 for generating the ionization effect and save energy consumption.

In further embodiments, referring to fig. 5 and 6, the tip portion 321a includes a saw tooth portion disposed on a side surface of the flat plate portion 321b in the first direction, the saw tooth portion extending in a saw-tooth shape along the rotation axis of the pole plate 321; and/or, the tip portion 321a includes a needle-punched portion disposed on a side surface of the plane in the first direction, the needle-punched portion extends along the rotation axis of the pole plate 321 in a strip shape, and a sectional area of the needle-punched portion gradually decreases along the first direction.

That is, the tip portion 321a may include only two serrations provided on two opposite side surfaces of the flat plate portion 321b in the first direction (as shown in fig. 5), may include only two needle-punched portions provided on two opposite side surfaces of the flat plate portion 321b in the first direction (as shown in fig. 6), or may include a serration provided on one side surface of the flat plate portion 321b in the first direction and a needle-punched portion provided on the other side surface, and is not limited in particular.

The above is only an alternative of the pole plate 321, and is not a limitation on the scheme thereof. For example, the flat plate portion 321b has a square shape.

In some embodiments of the present application, referring to fig. 1 to 4, the dust collection members 31 include at least two, all of the dust collection members 31 are arranged side by side at intervals in a direction perpendicular to a direction in which air flows, and a sterilization part 32 is provided between adjacent two of the dust collection members 31.

In connection with the foregoing embodiment, all the dust collecting members 31 are spaced from the second direction corresponding to the plate 321 in the first state (understandably, in the case of the plate 321 corresponding to the first and second directions corresponding to the aforementioned plate 321, when the plate 321 rotates, the first and second directions correspondingly rotate).

By providing the plurality of dust collecting members 31 and the sterilizing unit 32 in the dust collecting and sterilizing module 30, the plurality of dust collecting members 31 can be simultaneously subjected to dust collection, thereby improving the cleaning efficiency. It is understood that the dust collecting and sterilizing module 30 may include only one dust collecting member 31, and the dust collecting member 31 may also perform the cleaning and sterilizing functions, and the number of the dust collecting members 31 is not limited herein.

Preferably, each sterilizing part 32 is capable of sterilizing the adjacent two dust collecting members 31. In this way, the dust collecting member 31 can be sterilized in a plurality of directions, and the sterilizing effect is improved. When the sterilizing part 32 is a plasma generator, the plasma can be fully discharged to sterilize the adjacent two dust collecting members 31. The sterilizing part 32 can also sterilize the adjacent two dust collecting members 31 by providing the pointed portions 321a on both sides of the flat portion 321b in the first direction in the above-described embodiment.

Referring to fig. 7, a control logic diagram of the air purification apparatus 100 in an embodiment is shown. The mode a is a dust collection mode, the mode B is a sterilization mode, and the initial state of the sterilization unit 32 is a second state corresponding to the dust collection mode. The user selects the working mode of the air purification device 100, if the working mode is the dust collection mode, the user judges that the state of the sterilization part 32 does not need to be converted, and the power module 10 executes a corresponding first control mode; if the sterilization mode is selected, the state of the sterilization part 32 is switched, and then the power module 10 executes the second control mode.

In the air purification device 100 provided by the present application, in the dust collection mode, the external air enters the air purification device 100, flows through the discharging module 20 and the dust collection and sterilization module 30 in sequence, and finally flows out of the air purification device 100. As the air flows through the discharge module 20, the discharge module 20 discharges to charge particles in the air. The air is adsorbed on the dust collecting member 31 while carrying charged particles through the dust collecting and sterilizing module 30, thus achieving the purification of the air. In the sterilization mode, the air near the sterilization part 32 is ionized to form plasma, and the plasma flows onto the dust collection member 31 to etch and inactivate bacteria and viruses on the dust collection member 31, thereby achieving the sterilization effect. When the user needs to clean the dust collecting member 31 for a period of time using the dust collecting mode of the air cleaning apparatus 100, the sterilization mode of the air cleaning apparatus 100 can be started first, the sterilization part 32 is used to sterilize the dust collecting member 31, and then the dust collecting and sterilizing module 30 is detached to clean the dust collecting member, thereby preventing the user from being infected with bacteria and viruses again during the cleaning process.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. An air purification apparatus, comprising:

a power supply module (10);

a discharge module (20) for discharging to charge particles in air;

a dust collecting and sterilizing module (30) which is positioned at the downstream of the air flowing through the discharging module (20) and comprises a sterilizing part (32) and a dust collecting component (31) which are arranged at intervals;

wherein, when the air purification device (100) is in a dust collection mode, the power supply module (10) is in a first control mode for controlling the discharging module (20) to discharge and controlling the dust collection member (31) to adsorb the charged particles; when the air cleaning device (100) is in a sterilization mode, the power module (10) is in a second control mode for controlling the sterilization part (32) to ionize and form plasma for sterilizing the dust collection member (31).

2. The air purification apparatus according to claim 1, wherein the sterilizing part (32) and the power module (10) are further configured to control the power module (10) to form an auxiliary electric field between the sterilizing part (32) and the dust collection member (31) to accelerate the movement of the charged particles toward the dust collection member (31) when the air purification apparatus (100) is in the dust collection mode.

3. The air cleaning device according to claim 2, wherein the sterilizing part (32) has a first state and a second state with respect to the dust collecting member (31); said sterilizing part (32) of said first state is controlled to be ionizable only to form a plasma; the sterilizing part (32) of the second state is controlled to form the auxiliary electric field only with the dust collecting member (31);

when the air cleaning device (100) is in the sterilization mode, the sterilization part (32) is in the first state; when the air cleaning device (100) is in the dust collection mode, the sterilizing part (32) is in the second state.

4. The air cleaning device according to claim 3, wherein in the dust collection mode, the power supply module (10) applies a voltage between a voltage of the dust collection member (31) and a voltage of the discharge module (20) to the sterilizing part (32).

5. The air cleaning device according to claim 1, wherein the sterilizing part (32) comprises a pole plate (321), the pole plate (321) having a tip portion (321 a);

when the air purification device (100) is in the sterilization mode, the tip portion (321a) is opposite to the dust collection component (31), and the power supply module (10) controls the tip portion (321a) to be at a high potential relative to the dust collection component (31) so as to ionize and form plasma for sterilizing the dust collection component (31).

6. The air cleaning device according to claim 5, wherein the pole plate (321) further has a flat plate portion (321 b);

when the air purification device (100) is in the dust collection mode, the flat plate portion (321b) is opposite to the dust collection component (31), and whether the power module (10) controls the formation of an auxiliary electric field for accelerating the charged particles to move towards the dust collection component (31) between the flat plate portion (321b) and the dust collection component (31) or not is controlled.

7. The air cleaning device according to claim 6, wherein the sterilizing part (32) further comprises a driving part which is connected with the pole plate (321) and drives the pole plate to switch between a first state and a second state relative to the dust collecting member (31);

when the pole plate (321) is in the first state, the tip part (321a) is opposite to the dust collection component (31), and the flat plate part (321b) is staggered with the dust collection component (31); when the pole plate (321) is in the second state, the tip portion (321a) and the dust collection member (31) are displaced, and the flat plate portion (321b) faces the dust collection member (31).

8. The air cleaning device according to claim 7, wherein the pole plate (321) is provided rotatably with respect to the dust collection member (31) and is switched between the first state and the second state when rotating by the driving of the driving unit.

9. The air cleaning device according to claim 8, wherein the tip portions (321a) are provided on both sides of the flat plate portion (321b) in a first direction perpendicular to a rotation axis of the pole plate (321);

wherein a dimension of the flat plate portion (321b) in a second direction perpendicular to the rotational axis of the plate (321) and the first direction is smaller than a dimension thereof in the first direction.

10. The air cleaning device according to claim 9, wherein the tip portion (321a) includes a serration provided on a side surface of the flat plate portion (321b) in the first direction, the serration extending in a serration along a rotation axis of the pole plate (321);

and/or the tip part (321a) comprises a needling part arranged on the side surface of the flat plate part (321b) in the first direction, the needling part extends along the rotation axis of the polar plate (321) in a strip shape, and the sectional area of the needling part is gradually reduced along the first direction.

11. The air cleaning apparatus according to claim 1, wherein the dust collecting members (31) include at least two, all of the dust collecting members (31) being arranged side by side at intervals in a direction perpendicular to a direction in which air flows;

the sterilizing part (32) is arranged between two adjacent dust collecting components (31).