CN116878092A - Electric purification device, air purifier and electric purification method - Google Patents

Abstract

The present application relates to an electric purifying apparatus, an air purifier, and an electric purifying method, the electric purifying apparatus including: a first pole assembly having a dust collection space therein, the first pole assembly being configured to be capable of forming a first electric field within the dust collection space, the first electric field being for collecting target particles in a target medium; a second pole assembly disposed on the first pole assembly and configured to generate a second electric field in the dust collection space; the first electric field and the second electric field are arranged in a direction of electric field force of the first electric field and a direction of electric field force of the second electric field, and the moving direction of the target medium in the dust collecting space is in two-phase intersection arrangement. According to the application, the directions of the two electric field forces are respectively intersected with the moving direction of the target particles in the dust collection space, so that the moving path of the target particles in the dust collection space is increased under the action of the resultant force of the two electric field forces which are intersected, the resultant force which is close to the first pole assembly is formed on the target particles, more charged target particles are collected, and the dust collection efficiency is improved.

Description

Electric purification device, air purifier and electric purification method

Technical Field

The application relates to the technical field of dust removal, in particular to an electric purification device, an air purifier and an electric purification method.

Background

With the economic development and the improvement of the life quality of people, the requirements on the air cleanliness degree are higher and higher, so that the air purifier with the air purifying function is generated. The air purifier can remove impurities and particulate matters in the air, thereby achieving the purpose of purifying the air.

Air cleaners generally include a screen type air cleaner, which has a risk of secondary pollution, and an electric cleaning type air cleaner, which is costly to maintain at a later stage. Based on this, the electric purification apparatus is more widely used in daily life.

However, when the current electric purification device is used, the problem of particle escape is easy to occur, so that the particle collection rate is low, and the dust removal efficiency is affected.

Disclosure of Invention

Accordingly, it is necessary to provide an electric purification apparatus, an air purifier, and an electric purification method for solving the problem that the conventional electric purification apparatus is low in dust removal efficiency due to the easy occurrence of particle escape during use.

In a first aspect, the present application provides an electrical purification apparatus comprising:

a first pole assembly having a dust collection space therein for passing a target medium, and configured to be capable of forming a first electric field within the dust collection space for collecting target particles in the target medium;

a second pole assembly disposed on the first pole assembly and configured to generate a second electric field within the dust collection space;

the electric field force direction of the first electric field, the electric field force direction of the second electric field and the moving direction of the target medium in the dust collecting space are arranged in a pairwise intersection mode.

Through the structure, under the combined action of the first electric field and the second electric field which are overlapped with each other, the moving path of the target particles in the dust collecting space is increased, so that the target particles can move towards the direction close to the first pole assembly in the dust collecting space and finally are smoothly collected to the first pole assembly, the escaping probability of the target particles is reduced, and the dust collecting efficiency is improved.

In some embodiments, the first pole assembly includes a repeller pole and a first ground pole spaced apart along a first direction, the repeller pole for accessing the positive pole, the first ground pole for accessing the ground pole;

the first direction is parallel to the electric field force direction of the first electric field.

Through setting up the repulsion utmost point and first earthing pole to connect the positive pole with the repulsion utmost point, the negative pole is connected to first earthing pole, makes between repulsion utmost point and the first earthing pole form the electric field force direction by the first electric field of the first earthing pole of repulsion utmost point orientation, and the target particle can be under the effect of the appeal of first earthing pole orientation first earthing pole when passing through dust collecting space remove, thereby is collected to first earthing pole, realizes the dust removal smoothly.

In some embodiments, the repeller comprises a body and an insulating layer coating the outside of the body, the body being used to access the anode. Thus, abnormal discharge ignition can be effectively suppressed, the electric field can be increased, and ozone can be reduced.

In some embodiments, the body comprises a metal body and/or the insulating layer comprises a rubber cladding.

In some embodiments, the first pole assembly includes a plurality of the repeller poles and a plurality of the first ground poles, each of the repeller poles and each of the first ground poles being spaced apart and staggered along the first direction;

the first electric field comprises a plurality of first sub-electric fields, and any adjacent repulsive poles and first grounding poles are used for forming one first sub-electric field.

Through setting up a plurality of repelling poles and a plurality of first earthing pole to with each repelling pole and each first earthing pole interval and crisscross setting each other, can increase the quantity of first sub-electric field, make more target particles can get into dust collecting space, improve dust collection efficiency.

In some embodiments, the second pole assembly comprises a pole wire and a second grounding pole which are arranged at intervals along the first direction, wherein the pole wire is used for being connected with the positive pole, and the second grounding pole is used for the grounding pole;

the first direction is parallel to the electric field force direction of the first electric field.

Therefore, the moving path of the charged particles in the dust collection space can be increased under the combined action of the first electric field force and the second electric field force, so that the charged particles can smoothly move towards the first grounding electrode in the dust collection space and finally smoothly collect on the first grounding electrode, and the purpose of dust removal is achieved.

In some embodiments, the second pole assembly includes a plurality of the pole wires and a plurality of the second ground poles, and each of the pole wires and each of the second ground poles are spaced apart and staggered along the first direction;

the second electric field comprises a plurality of second sub-electric fields, and any adjacent electrode wires and the second grounding electrode are used for forming one second sub-electric field.

When the target medium passes through the dust collection space, under the combined action of the electric field forces of the first electric field and the second electric field, the moving path of the charged particles in the dust collection space is increased, so that the charged particles can be smoothly collected to the first grounding electrode in the dust collection space, the escape probability of the charged particles is reduced, and the dust collection efficiency is improved.

In some embodiments, the first pole assembly is removably connected with the second pole assembly. From this, can demolish the second pole subassembly in the cleaning process to be convenient for carry out the individual cleaning to first pole subassembly, can effectively reduce the cracked risk of pole silk in the second pole subassembly in the cleaning process.

In some embodiments, one of the first pole component and the second pole component is provided with a clamping part, and the other is provided with a buckling part which is in clamping connection with the clamping part.

In a second aspect, the present application provides an air cleaner comprising an electrical cleaning device as described above.

In a third aspect, the present application provides an electrical purification method comprising the steps of:

applying a first electric field in the dust collection space;

applying a second electric field in the dust collection space, wherein the second electric field is intersected with the first electric field by the electric field force;

and introducing a target medium into the dust collection space, and enabling the moving direction of the target medium in the dust collection space to be intersected with the electric field force directions of the first electric field and the second electric field respectively.

When the target medium passes through the dust collecting space, the target particles in the target medium are charged, the target particles are respectively subjected to the electric field force of the first electric field and the electric field force of the second electric field in the dust collecting space, and the directions of the two electric field forces are respectively intersected with the moving direction of the target particles in the dust collecting space; therefore, under the action of the resultant force of the electric field forces which are arranged in an intersecting manner, the moving path of the target particles in the dust collection space is increased, so that the resultant force which is close to the first pole assembly is formed on the target particles, more charged target particles are collected, and the dust collection efficiency is improved.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an electrical purification apparatus according to one or more embodiments.

FIG. 2 is an exploded view of an electrical purification apparatus in accordance with one or more embodiments.

FIG. 3 is a cross-sectional view of a repeller in an electrical purification apparatus according to one or more embodiments.

FIG. 4 is a cross-sectional view of an electrical purification apparatus in accordance with one or more embodiments.

Fig. 5 is a partial enlarged view at a in fig. 4.

FIG. 6 is a schematic diagram of the superposition of a first electric field and a second electric field in an electrical purification apparatus according to one or more embodiments.

FIG. 7 is a flow diagram of an electrical purification method in accordance with one or more embodiments.

Reference numerals illustrate: 100. an electrical purification device; 10. a first pole assembly; 20. a second pole assembly; 11. a dust collecting space; 12. a repeller; 13. a first ground electrode; 14. a clamping part; 21. a pole wire; 22. a second ground electrode; 23. a buckling part; 121. a main body; 122. an insulating layer; a. a first direction; b. a first electric field force direction; c. a second electric field force direction.

Detailed Description

In order that the above objects, features and advantages of the application will be readily understood, a more particular description of the application will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. The present application may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the application, whereby the application is not limited to the specific embodiments disclosed below.

In the description of the present application, it should be understood that, if any, these terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., are used herein with respect to the orientation or positional relationship shown in the drawings, these terms refer to the orientation or positional relationship for convenience of description and simplicity of description only, and do not indicate or imply that the apparatus or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the application.

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

In the present application, unless explicitly stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly. For example, the two parts can be fixedly connected, detachably connected or integrated; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present application, unless expressly stated or limited otherwise, the meaning of a first feature being "on" or "off" a second feature, and the like, is that the first and second features are either in direct contact or in indirect contact through an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that if an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. If 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, if any, are for descriptive purposes only and do not represent a unique embodiment.

Referring to fig. 1, an embodiment of the present application provides an electrical purification apparatus 100, which includes a first pole assembly 10 and a second pole assembly 20, wherein a dust collecting space 11 through which a target medium passes is provided inside the first pole assembly 10, and the first pole assembly 10 is configured to form a first electric field in the dust collecting space 11, and the first electric field is used for collecting target particles in the target medium. The second pole assembly 20 is disposed on the first pole assembly 10 and is configured to generate a second electric field within the dust collection space 11. The direction of the electric field force of the first electric field, the direction of the electric field force of the second electric field and the moving direction of the target medium in the dust collecting space 11 are arranged in a two-to-two intersection way.

It should be noted that, when the electric purification apparatus 100 is applied to an air purifier, the target medium may be air to be purified, and the target particles may be dust in the air. Of course, the electric purifying apparatus 100 may be applied to other purifying devices, and will not be described herein.

The first pole assembly 10 is internally provided with a dust collecting space 11, the dust collecting space 11 can be used for allowing air to be purified to pass through, and in the process that the air passes through the dust collecting space 11, charged particles such as dust in the air can be collected by utilizing the electric field force of the first electric field and the second electric field, so that the aim of purifying the air is achieved.

Specifically, a first electric field is formed in the dust collection space 11 by the first pole assembly 10, and the electric field force direction of the first electric field is made perpendicular to the direction in which air enters the integrated space. When air passes through the dust collecting space 11, the first electric field first charges particles entering the electric field. The charged particles are moved toward the direction approaching the first pole assembly 10 by the electric field force of the first electric field, so that the charged particles are collected on the first pole assembly 10.

However, the force to which the charged particles are subjected in their direction of flow (i.e. the direction of movement of the target medium) may be greater than the attractive force to which the first pole assembly 10 is subjected, for example, when the wind speed of the air purifier is high, the airflow force of the charged particles in their direction of flow is greater than the attractive force to which the first pole assembly 10 is subjected. At this time, charged particles may escape and cannot be collected on the first pole assembly 10, which affects the dust removal efficiency.

Based on this, by providing the second pole assembly 20, a superimposed second electric field is formed in the dust collecting space 11, and the electric field force direction of the second electric field is perpendicular to the electric field force direction of the first electric field and the direction in which air enters the dust collecting space 11, respectively.

When the charged particles move in the dust collecting space 11, the three forces are perpendicular to each other, and are respectively subjected to a first component force in the moving direction, an attractive force of the first pole assembly 10, and a second component force applied by the second electric field. Under the combined action of the first component force, the attractive force and the second component force, the moving path of the charged particles in the dust collecting space 11 is increased, so that the charged particles gradually approach the first pole assembly 10 in the moving process and are finally collected on the first pole assembly 10, and dust removal is realized.

Through the structure, under the combined action of the first electric field and the second electric field which are overlapped with each other, the moving path of the target particles in the dust collecting space 11 is increased, so that the target particles can move towards the direction close to the first pole assembly 10 in the dust collecting space 11 and finally are smoothly collected on the first pole assembly 10, the escaping probability of the target particles is reduced, and the dust collecting efficiency is improved.

Referring to fig. 2, in some embodiments, the first pole assembly 10 includes a repeller 12 and a first grounding pole 13 spaced along the first direction a, the repeller 12 being used to access the positive pole, and the first grounding pole 13 being used to access the grounding pole. The first direction a is parallel to the electric field force direction of the first electric field.

Specifically, the repeller 12 is used to switch in the sub-high voltage and the first ground 13 is used to switch in the ground. Thus, the repeller 12 is a positive electrode, and the first ground 13 is a negative electrode. When the charged particles move between the repulsive electrode 12 and the first ground electrode 13, the attractive force from the first ground electrode 13 is received, so that the charged particles are collected on the first ground electrode 13, thereby achieving dust removal.

Further, the repeller 12 and the first grounding electrode 13 may be respectively disposed in a flat plate structure perpendicular to the first direction a, and the repeller 12 and the first grounding electrode 13 are disposed at intervals along the first direction a, so that a first electric field is formed between the repeller 12 and the first grounding electrode 13, and the direction of the electric field force of the first electric field is directed to the first grounding electrode 13 by the repeller 12. When the charged particles pass through the dust collecting space 11, the charged particles are attracted by the first grounding electrode 13, so that the charged particles can move towards the first grounding electrode 13 under the action of the attraction force and finally are collected on the first grounding electrode 13.

Through setting up the repelling electrode 12 and the first earthing electrode 13 to connect the repelling electrode 12 positive pole, the negative pole is connected to first earthing electrode 13, makes the first electric field that forms electric field force direction by the repelling electrode 12 directional first earthing electrode 13 between repelling electrode 12 and the first earthing electrode 13, and the target particle can be moved towards first earthing electrode 13 under the appeal effect of first earthing electrode 13 when passing through dust collecting space 11, thereby is collected to first earthing electrode 13, realizes the dust removal smoothly.

As shown in fig. 3, in some embodiments, the repeller 12 includes a main body 121 and an insulating layer 122 coated outside the main body 121, and the main body 121 is used for accessing the positive electrode.

It should be noted that, in the process of performing electric purification, if the target particles with a larger diameter enter the dust collecting space 11, they may collide with the repeller 12 to cause abnormal discharge, generate a sparking phenomenon and generate a snap sound, which affects the use of the air purifier.

Therefore, the insulating layer 122 is coated on the outside of the body 121 of the repeller 12, so that abnormal discharge ignition can be effectively suppressed, the electric field can be increased, and ozone can be reduced.

In some embodiments, body 121 comprises a metal body and/or insulating layer 122 comprises a rubber cladding.

Specifically, the body 121 is provided as a metal body, and the insulating layer 122 is provided as a rubber coating layer and is insulated and coated outside the metal body. Wherein the metal body may be, but is not limited to being, provided as a sheet of metal steel. Therefore, a full-cladding structure of the polarized medium is formed, the problem of 'edge effect' discharge is solved by utilizing the material polarization principle, and finally, the electric field is improved and the ozone is reduced by inhibiting abnormal discharge.

Referring to fig. 2, 4 and 5, in some embodiments, the first pole assembly 10 includes a plurality of repeller poles 12 and a plurality of first grounding poles 13, and each repeller pole 12 and each first grounding pole 13 are spaced apart and staggered along the first direction a. The first electric field includes a plurality of first sub-electric fields, and any adjacent repeller 12 and first ground 13 are used to form a first sub-electric field.

The repeller electrodes 12 are disposed parallel to the first grounding electrodes 13 and are staggered along the first direction a. Each repeller 12 is connected to the positive electrode and each first earthing electrode 13 is connected to the earth electrode. Thus, each repeller 12 forms a positive electrode, and the first grounding electrodes 13 located at two sides of the repeller 12 along the first direction a form negative electrodes respectively, so as to form a first sub-electric field between the repeller 12 and the first grounding electrode 13 adjacent thereto, all the first sub-electric fields together form a first electric field, and the electric field force of the first electric field is directed from the repeller 12 to the first grounding electrode 13 along the first direction a.

When the target medium passes through the dust collection space 11, the target medium can pass through between each two adjacent repulsive poles 12 and the first grounding poles 13 respectively, and target particles are adsorbed to the corresponding first grounding poles 13 in the process of passing through the adjacent repulsive poles 12 and the first grounding poles 13, so that the purpose of dust removal is realized.

Through setting up a plurality of repelling poles 12 and a plurality of first earthing poles 13 to with each repelling pole 12 and each first earthing pole 13 interval and crisscross setting each other, can increase the quantity of first electric field, make more target particles can get into dust collecting space 11, improve dust collecting efficiency.

In some embodiments, the second pole assembly 20 includes a pole wire 21 and a second grounding pole 22 spaced along the first direction a, the pole wire 21 being used for accessing the positive pole, the second grounding pole 22 being used for the grounding pole.

In particular, the pole wire 21 may be, but is not limited to being, provided as a tungsten wire. The tungsten filament is connected to high voltage, the second grounding electrode 22 is connected to the grounding electrode, a second electric field is formed by the tungsten filament and the second grounding electrode 22, the second electric field is superposed in the first electric field, and the electric field force direction of the second electric field is respectively perpendicular to the electric field force direction of the first electric field and the direction of charged particles entering the dust collecting space 11.

When the airflow force of the charged particles entering the dust collecting space 11 is larger, the moving path of the charged particles in the dust collecting space 11 can be increased under the combined action of the first electric field force and the second electric field force, so that the charged particles can smoothly move towards the first grounding electrode 13 in the dust collecting space 11 and finally are smoothly collected on the first grounding electrode 13, and the purpose of dust removal is achieved.

In some embodiments, the second pole assembly 20 includes a plurality of pole wires 21 and a plurality of second grounding poles 22, and each pole wire 21 and each second grounding pole 22 are spaced apart and staggered along the first direction a. The second electric field includes a plurality of second sub-electric fields, and any adjacent electrode wire 21 and second ground electrode 22 are used to form a second sub-electric field.

Specifically, each of the filaments 21 and each of the second ground electrodes 22 are disposed parallel to each other and alternately disposed at intervals along the first direction a. Wherein, each pole wire 21 is uniformly connected with the positive electrode, each second grounding electrode 22 is connected with the ground electrode, so that each pole wire 21 forms the positive electrode, and each second grounding electrode 22 forms the negative electrode. Each adjacent pole wire 21 and the second grounding pole 22 form a second sub-electric field, and all the second sub-electric fields jointly form a second electric field. Thereby, a second electric field superimposed on the first electric field is formed by the pole wire 21 and the second ground electrode 22.

Further, the second pole assembly 20 may be disposed above the first pole assembly 10 along the gravity direction, where each pole wire 21 in the second pole assembly 20 and each second grounding pole 22 are spaced and staggered along the first direction a, and each repulsive pole 12 in the first pole assembly 10 and each first grounding pole 13 are spaced and staggered along the first direction a.

As shown in fig. 6, thereby, each of the first electric fields is superimposed with the second electric field. When the target medium passes through the dust collection space 11, under the combined action of the electric field forces of the first electric field and the second electric field, the moving path of the charged particles in the dust collection space 11 is increased, so that the charged particles can be smoothly collected onto the first grounding electrode 13 in the dust collection space 11, the escaping probability of the charged particles is reduced, and the dust collection efficiency is improved.

In some embodiments, the first pole assembly 10 is removably connected with the second pole assembly 20.

In the structure of the electric purification apparatus 100, a tungsten wire is generally provided at the front end, and the repeller 12 and the first ground 13 are provided at the rear end. As the use proceeds, a large amount of dust is adsorbed on the first ground electrode 13, and thus the electric cleaning apparatus 100 needs to be cleaned in time.

However, the cleaning process is generally only required to clean the repeller 12 and the first grounding electrode 13, i.e. the structure of the first electrode assembly 10. However, the tungsten wire is easily touched during the cleaning of the first pole assembly 10, thereby causing breakage of the tungsten wire.

Therefore, by detachably connecting the first pole assembly 10 and the second pole assembly 20, the second pole assembly 20 can be removed during the cleaning process, so that the first pole assembly 10 can be cleaned independently, and the risk of breakage of the pole wire 21 in the second pole assembly 20 during the cleaning process can be effectively reduced.

Referring to fig. 2 again, in some embodiments, one of the first pole assembly 10 and the second pole assembly 20 is provided with a clamping portion 14, and the other is provided with a buckling portion 23 in clamping connection with the clamping portion 14.

Specifically, the first pole assembly 10 may be provided with a clamping portion 14, and the second pole assembly 20 may be provided with a buckling portion 23, where the clamping portion 14 and the buckling portion 23 may be connected in a buckled manner, so as to realize detachable connection between the first pole assembly 10 and the second pole assembly 20.

When disassembled, the second pole assembly 20 can be grasped to lift up, and the second pole assembly 20 can be separated from the first pole assembly 10, so that the first pole assembly 10 can be cleaned independently.

Of course, the first pole assembly 10 may be provided with the engaging portion 23, and the second pole assembly 20 may be provided with the engaging portion 14, so that the first pole assembly 10 and the second pole assembly 20 may be engaged with each other.

In some other embodiments, the first pole assembly 10 and the second pole assembly 20 may be detachably connected by other connection methods, such as a threaded connection, which is not described herein.

Based on the same concept as the above-described electric purification apparatus 100, the present application provides an air purifier including the electric purification apparatus 100 as described above.

As shown in fig. 7, the present application also provides an electric purification method based on the same concept as the above-described electric purification apparatus 100, including the steps of:

s10: a first electric field is applied in the dust collecting space 11.

S20: a second electric field is applied in the dust collection space 11, the electric field force of which intersects with the electric field force of the first electric field.

S30: the target medium is introduced into the dust collection space 11, and the moving direction of the target medium in the dust collection space 11 is intersected with the electric field force directions of the first electric field and the second electric field respectively.

Specifically, the electric field force direction of the first electric field is perpendicular to the electric field force direction of the second electric field, and the electric field force directions of the first electric field and the second electric field are respectively perpendicular to the moving direction of the target medium in the dust collecting space 11.

The first electric field charges target particles in the target medium to become charged particles. The charged particles are simultaneously subjected to the electric field force of the first electric field, the electric field force of the second electric field, and the acting force in the air flow direction in the dust collection space 11. Under the combined action of the three forces, the moving path of the charged particles in the dust collecting space 11 is oblique, and approaches to the first grounding electrode 13, so that the charged particles can be smoothly collected on the first grounding electrode 13 in the dust collecting space 11, and dust removal is smoothly realized.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the application, which are described in detail and are not to be construed as limiting the scope of the claims. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of protection of the present application is to be determined by the appended claims.

Claims (11)

1. An electrical purification apparatus, comprising:

a first pole assembly (10) having a dust collection space (11) therein for passing a target medium, and the first pole assembly (10) being configured to be able to form a first electric field within the dust collection space (11), the first electric field being for collecting target particles in the target medium;

a second pole assembly (20) disposed on the first pole assembly (10) and configured to be capable of generating a second electric field within the dust collection space (11);

the electric field force direction of the first electric field, the electric field force direction of the second electric field and the moving direction of the target medium in the dust collecting space (11) are arranged in a pairwise intersection mode.

2. The electrical purification apparatus of claim 1, wherein the first pole assembly (10) comprises a repeller pole (12) and a first earthing pole (13) arranged at intervals along a first direction (a), the repeller pole (12) being for accessing the anode, the first earthing pole (13) being for accessing the earthing pole;

wherein the first direction (a) is arranged parallel to the electric field force direction of the first electric field.

3. The electrical purification apparatus of claim 2, wherein the repeller (12) comprises a body (121) and an insulating layer (122) coating the body (121), the body (121) being adapted to access the anode.

4. An electrical purification apparatus according to claim 3, wherein the body (121) comprises a metal body and/or the insulating layer (122) comprises a rubber coating.

5. The electrical purification apparatus of claim 2, wherein the first pole assembly (10) comprises a plurality of the repeller poles (12) and a plurality of the first grounding poles (13), each of the repeller poles (12) being spaced from each of the first grounding poles (13) along the first direction (a) and staggered;

wherein the first electric field comprises a plurality of first sub-electric fields, and any adjacent repulsive poles (12) and first grounding poles (13) are used for forming one first sub-electric field.

6. The electrical purification apparatus of any one of claims 1-5, wherein the second pole assembly (20) comprises a pole wire (21) and a second ground electrode (22) arranged at intervals along the first direction (a), the pole wire (21) being for accessing the positive pole, the second ground electrode (22) being for accessing the ground electrode;

wherein the first direction (a) is arranged parallel to the electric field force direction of the first electric field.

7. The electrical purification apparatus of claim 6, wherein the second pole assembly (20) comprises a plurality of the pole wires (21) and a plurality of the second ground poles (22), each of the pole wires (21) and each of the second ground poles (22) being spaced apart and staggered along the first direction (a);

wherein the second electric field comprises a plurality of second sub-electric fields, and any adjacent electrode wires (21) and second grounding electrodes (22) are used for forming one second sub-electric field.

8. The electrical purification apparatus of claim 1, wherein the first pole assembly (10) is detachably connected to the second pole assembly (20).

9. The electrical purification apparatus of claim 8, wherein one of the first pole assembly (10) and the second pole assembly (20) is provided with a locking portion (14), and the other is provided with a locking portion (23) that is in locking connection with the locking portion (14).

10. An air cleaner comprising an electrical cleaning device (100) according to any one of claims 1-9.

11. An electrical purification method comprising the steps of:

applying a first electric field in the dust collecting space (11);

applying a second electric field in the dust collecting space (11) where the electric field force intersects with the electric field force of the first electric field;

and introducing a target medium into the dust collection space (11), and enabling the moving direction of the target medium in the dust collection space (11) to be intersected with the electric field force directions of the first electric field and the second electric field respectively.