CN216173231U - Electric purification device and air purification equipment - Google Patents

Abstract

The utility model relates to an electric purification device and air purification equipment, comprising: the dust collecting mechanism comprises a first assembly part and a dust collecting plate, and the dust collecting plate is arranged on the first assembly part; the discharging mechanism comprises a second assembly part and a discharging part, and the discharging part is arranged on the second assembly part; the discharging mechanism is detachably matched and connected with the dust collecting mechanism through the matching of the first assembly part and the second assembly part, and air flow can flow from the discharging part to the dust collecting plate. Above-mentioned electric purification device and air purification equipment, second assembly part can dismantle with first assembly part and be connected. Therefore, when the dust collecting plate needs to be cleaned, the first assembly part and the second assembly part are disassembled, the dust collecting plate assembled on the first assembly part is separated from the discharging part assembled on the second assembly part, and the discharging part is not easy to touch when the dust collecting plate is cleaned, so that the discharging part is not easy to damage.

Description

Electric purification device and air purification equipment

Technical Field

The utility model relates to the technical field of electric purification, in particular to an electric purification device and air purification equipment.

Background

With the development of economy and the improvement of life quality of people, the requirement on the cleanness degree of air is higher and higher, and therefore, air purification equipment with an air purification function is produced. The air purifying apparatus can remove particulate matter from air to purify the air.

The air purification equipment mainly comprises a filter screen type air purification equipment and an electric purification type air purification equipment, but the filter screen type air purification equipment has secondary pollution and high later maintenance cost, so that the electric purification equipment is widely applied in daily life.

After the electric purifying apparatus is used for a period of time, the dust collecting plate needs to be cleaned to remove the particles deposited on the dust collecting plate, but the discharge electrode is easily touched to damage the discharge electrode when the conventional electric purifying apparatus is used for cleaning the dust collecting plate.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is desirable to provide an electric cleaning device and an air cleaning apparatus that facilitate protection of a discharge electrode when cleaning a dust collecting plate, in order to solve the problem that the discharge electrode is easily damaged when cleaning the dust collecting plate.

An electrical purification apparatus comprising:

the dust collecting mechanism comprises a first assembly part and a dust collecting plate, and the dust collecting plate is arranged on the first assembly part;

the discharging mechanism comprises a second assembly part and a discharging part, and the discharging part is arranged on the second assembly part;

the discharge mechanism is detachably matched and connected with the dust collecting mechanism through the matching of the first assembly part and the second assembly part, and air flow can flow from the discharge part to the dust collecting plate.

In one embodiment, one of the first assembly part and the second assembly part is provided with a first matching part, and the other one is provided with a second matching part, and the first matching part is inserted into or separated from the second matching part to realize the detachable connection of the first assembly part and the second assembly part.

In one embodiment, the first matching part comprises a guide part and a limiting part which are communicated with each other; the second fitting part comprises a resilient arm comprising a connecting part and a curved part connected to each other, the connecting part being connected to the first fitting part or the second fitting part;

the connecting part is accommodated in the guide part, and the bending part is abutted against the limiting part to limit the first assembly part and the second assembly part to be separated.

In one embodiment, the second matching portion comprises two elastic arms arranged at intervals, and the bent portions of the two elastic arms are bent in a direction away from each other.

In one embodiment, the first matching parts comprise at least two parts which are arranged at intervals, and the second matching parts are equal in number and correspond to the first matching parts one by one.

In one embodiment, a dust collecting cavity is arranged in the first assembly part, a first opening and a second opening which are respectively communicated with two ends of the dust collecting cavity are arranged on the first assembly part, and at least part of the dust collecting plate is arranged in the dust collecting cavity; an assembly cavity is arranged in the second assembly part, a third opening and a fourth opening which are respectively communicated with two ends of the assembly cavity are arranged on the second assembly part, and the discharge part is arranged in the assembly cavity;

wherein the end of the second fitting having the third opening is connected to the end of the first fitting having the first opening to close the third opening and the first opening, the fourth opening forming an airflow inlet, and the second opening forming an airflow outlet.

In one embodiment, the dust collecting plates comprise a first dust collecting plate and a second dust collecting plate which are electrically connected, the first dust collecting plate and the second dust collecting plate both extend along a first direction, and the first dust collecting plate and the second dust collecting plate are arranged at intervals in a second direction which is intersected with the first direction;

in the second direction, the first dust collecting plate is opposite to the part of the second dust collecting plate, the first dust collecting plate is staggered with the discharge part, and the part of the second dust collecting plate is opposite to the discharge part.

In one embodiment, the electrical purification apparatus further comprises an electrically conductive member mounted on the first mounting member, the dust collecting plate and the electrically conductive member both extending in a first direction, the dust collecting plate and the electrically conductive member being spaced apart in a second direction intersecting the first direction;

wherein, in the second direction, the conductive member is at least partially opposite to the dust collecting plate; the conductive piece and the discharge piece are the same in charged type, and the potential of the conductive piece is smaller than that of the discharge piece.

In one embodiment, the distance between the conductive member and the dust collecting plate in the second direction is 2mm to 5 mm.

In one embodiment, the conductive member includes a conductive plate and an insulating layer, and the insulating layer wraps the conductive plate.

An air cleaning apparatus comprising an electrical cleaning device as claimed in any preceding claim.

Above-mentioned electric purification device and air purification equipment, the second assembly part can be dismantled with first assembly part and be connected, like this, when needs wash the dust collecting plate, dismantle first assembly part and second assembly part, assemble the dust collecting plate on first assembly part and assemble the discharge piece separation on the second assembly part this moment, be difficult for touching the discharge piece and cause the damage of discharge piece when wasing the dust collecting plate.

Drawings

FIG. 1 is an isometric view of an electrical purification apparatus provided in accordance with an embodiment of the present invention;

FIG. 2 is a partial block diagram of the electrical purification apparatus shown in FIG. 1;

FIG. 3 is an enlarged view of the structure shown in FIG. 2 at A;

FIG. 4 is an isometric view of the discharge mechanism of the electrical purification apparatus shown in FIG. 1;

FIG. 5 is an enlarged view at B of the structure shown in FIG. 4;

FIG. 6 is a cross-sectional view of the structure shown in FIG. 2;

FIG. 7 is an isometric view of the structure shown in FIG. 2 from another perspective;

FIG. 8 is a cross-sectional view of the electrical purification apparatus shown in FIG. 1;

fig. 9 is a structural view of a conductive member in the electrical purification apparatus shown in fig. 1.

100. An electrical purification device; 10. a dust collecting mechanism; 11. a first fitting member; 111. a dust collection chamber; 112. a first opening; 113. a second opening; 121. a first dust collecting plate; 122. a second dust collecting plate; 20. a discharge mechanism; 21. a second fitting member; 211. an assembly chamber; 212. a third opening; 213. a fourth opening; 22. a discharge element; 221. discharging wires; 30. a first mating portion; 31. a guide portion; 32. a limiting part; 40. a second mating portion; 41. a resilient arm; 411. a connecting portion; 412. a bending section; 50. a conductive member; 51. a first avoidance hole; 52. and connecting the holes.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the description of the present invention, it is to be understood that the terms "central," "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 utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the utility model.

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 invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; 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 meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, 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 an intermediate. 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, an embodiment of the present invention provides an electrical purification apparatus 100 for an air purification device to purify air and remove particles from the air, so as to improve the cleanliness of the air. It should be understood that, in other embodiments, the electrical purification apparatus 100 can also be used in a purification device that needs to purify other gases, and is not limited thereto.

The electrical purification apparatus 100 comprises a dust collecting mechanism 10 and a discharging mechanism 20 connected to each other, wherein the dust collecting mechanism 10 comprises a first assembly 11 and a dust collecting plate, the dust collecting plate is disposed on the first assembly 11, the discharging mechanism 20 comprises a second assembly 21 and a discharging member 22, and the discharging member 22 is disposed on the second assembly 21. The second fitting 21 is coupled to the first fitting 11 to couple the discharge mechanism 20 to the dust collection mechanism 10 while allowing an air flow from the discharge element 22 to the dust collection plate. When air purification equipment air-purifying, in the air admission air purification equipment and through discharge 22, discharge 22 and carry out the ionization to the air, produce a large amount of ions to make the particulate matter in the air electrified, electrified particulate matter is close to the collecting plate under the effect of electric field force, in order to be collected by the collecting plate, the air outflow after the purification is for the user to inhale.

In one embodiment, the discharge unit 22 is connected to a high voltage, the dust collecting plate is grounded, and the discharge unit 22 ionizes the air to generate a large amount of positive ions, so that the particles in the air are positively charged, and the positively charged particles approach the dust collecting plate under the action of the electric field force to be collected by the dust collecting plate. It should be understood that in other embodiments, the discharge member 22 can be connected to a negative high voltage, the dust collecting plate is connected to ground, the discharge member 22 ionizes the air to generate a large amount of negative ions, so that the particles in the air are negatively charged, and the negatively charged particles approach the dust collecting plate under the action of the electric field force to be collected by the dust collecting plate.

The method of the present application will be described in detail below with the discharge element 22 being connected to a positive high voltage and the dust collecting plate being connected to ground, but the description is not intended to limit the scope of the present application.

Air purification equipment still includes gas power device, and when air purification equipment air-purifying, in the air got into air purification equipment under gas power device's effect, discharge 22 carried out the ionization to the air, produced a large amount of ions to make the particulate matter in the air electrified, electrified particulate matter is close to the dust collecting plate under the effect of electric field force, and the air after the purification flows out in air purification equipment for the user inhales in following air purification equipment under gas power device's effect. Specifically, the gas power device is a fan.

Further, the second assembly part 21 is detachably connected with the first assembly part 11, so that when the dust collecting plate needs to be cleaned, the first assembly part 11 and the second assembly part 21 are detached, the dust collecting plate assembled on the first assembly part 11 is separated from the discharging part 22 assembled on the second assembly part 21, and the discharging part 22 is not easily touched to damage the dust collecting plate when the dust collecting plate is cleaned.

In one embodiment, one of the first assembly member 11 and the second assembly member 21 is provided with a first mating portion 30 (see fig. 2 and 3), and the other one is provided with a second mating portion 40 (see fig. 4 and 5), and the first assembly member 11 and the second assembly member 21 are detachably connected with the second mating portion 40 through the first mating portion 30. That is, in the present embodiment, the first fitting member 11 and the second fitting member 21 are detachably connected by the engagement of the first engagement portion 30 and the second engagement portion 40. It should be understood that in other embodiments, the first assembly member 11 may be detachably connected to the second assembly member 21 via other connecting members, which are not limited herein.

Further, the first mating portion 30 is plugged into or separated from the second mating portion 40 to achieve the detachable connection of the first assembly member 11 and the second assembly member 21. Of course, in other embodiments, the first mating portion 30 and the second mating portion 40 can be detachably connected by other mating methods, such as by snapping or separating, and is not limited herein.

In one embodiment, the first mating portion 30 is disposed on the first fitting 11, and the second mating portion 40 is disposed on the second fitting 21. Of course, in other embodiments, the first mating portion 30 may be disposed on the second assembly member 21, and the second mating portion 40 may be disposed on the first assembly member 11. Specifically, the first fitting parts 30 include at least two fitting parts spaced apart from each other, and the second fitting parts 40 correspond to the first fitting parts 30 in the same number and one-to-one manner, so that after the first fitting parts 11 are assembled with the second fitting parts 21, the fixing effect of the first fitting parts 11 and the second fitting parts 21 is ensured.

Referring to fig. 3 and 5, the first mating portion 30 includes a guiding portion 31 and a limiting portion 32 that are communicated with each other, the second mating portion 40 includes a resilient arm 41, the resilient arm 41 includes a connecting portion 411 and a bending portion 412, the connecting portion 411 is connected to the second assembly member 21, and the bending portion 412 is connected to the connecting portion 411. The bending portion 412 is configured to be elastically deformed when passing through the guide portion 31, and elastically return to abut against the limiting portion 32 after passing through the guide portion 31 to limit the separation of the first fitting part 11 and the second fitting part 21. That is, when it is necessary to assemble the first assembly member 11 and the second assembly member 21, a force is applied to the first assembly member 11 and/or the second assembly member 21, the curved portion 412 of the elastic arm 41 is elastically deformed when passing through the guide portion 31, and elastically returns to abut against the stopper portion 32 after passing through the guide portion 31, so that the first assembly member 11 is restricted from being separated from the second assembly member 21. When the first assembly member 11 needs to be separated from the second assembly member 21, a force opposite to the above-mentioned force is applied to the first assembly member 11 and/or the second assembly member 21, the bending portion 412 of the elastic arm 41 is elastically deformed to be separated from the limiting portion 32, enters the guide portion 31, and finally passes out of the guide portion 31, so that the first assembly member 11 is separated from the second assembly member 21.

It should be understood that, in other embodiments, the first mating portion 30 and the second mating portion 40 may be disposed in other manners, and are not limited herein.

Specifically, the second fitting portion 40 includes two elastic arms 41 arranged at an interval from each other, and the bent portions 412 of the two elastic arms 41 are bent in a direction away from each other. When the first assembly member 11 and the second assembly member 21 are required to be assembled, a force is applied to the first assembly member 11 and/or the second assembly member 21, the bending portions 412 of the two elastic arms 41 approach each other in the process of passing through the guide portion 31 to be elastically deformed, and after passing through the guide portion 31, the bending portions elastically return to abut against the wall of the limiting portion 32, so that the first assembly member 11 is limited from being separated from the second assembly member 21. When the first assembly part 11 needs to be separated from the second assembly part 21, a force opposite to the force is applied to the first assembly part 11 and/or the second assembly part 21, the bending parts 412 of the two elastic arms 41 approach each other to be elastically deformed to be separated from the limiting part 32, enter the guide part 31 and finally penetrate out of the guide part 31, and the first assembly part 11 is separated from the second assembly part 21.

In one embodiment, a dust collecting cavity 111 (see fig. 2) is formed in the first assembly member 11, a first opening 112 (see fig. 1) and a second opening 113 (see fig. 3) are formed in the first assembly member 11 and respectively communicate with two ends of the dust collecting cavity 111, and at least a portion of the dust collecting plate is disposed in the dust collecting cavity 111. An assembly cavity 211 (see fig. 4) is formed in the second assembly member 21, a third opening 212 (see fig. 4) and a fourth opening 213 (see fig. 1) are formed in the second assembly member 21 and respectively communicate with both ends of the assembly cavity 211, and the discharge element 22 is disposed in the assembly cavity 211. The end of the second assembly member 21 having the third opening 212 is detachably connected to the end of the first assembly member 11 having the first opening 112, that is, the first fitting portion 30 is disposed at the end of the first assembly member 11 having the first opening 112, the second fitting portion 40 is disposed at the end of the second assembly member 21 having the third opening 212, when the end of the second assembly member 21 having the third opening 212 is connected to the end of the first assembly member 11 having the first opening 112, the third opening 212 and the first opening 112 can be closed, the fourth opening 213 forms an air inlet, and the second opening 113 forms an air outlet.

When the air purification equipment purifies air, the air enters the air purification equipment under the action of the gas power device and flows to the discharging piece 22 from the second opening 113 to be ionized to generate a large amount of ions, so that the particles in the air are charged, the charged particles approach to the dust collecting plate under the action of the electric field force to be collected by the dust collecting plate, and the purified air flows to the airflow outlet through the dust collecting cavity 111 under the action of the gas power device and flows out from the airflow outlet to be sucked by a user.

Referring to fig. 1, 6 and 7, the dust collecting plate includes a first dust collecting plate 121 and a second dust collecting plate 122 electrically connected to each other, the first dust collecting plate 121 and the second dust collecting plate 122 both extend along a first direction, and the first dust collecting plate 121 and the second dust collecting plate 122 are spaced apart from each other in a second direction intersecting the first direction. Wherein, in the second direction, the first dust collecting plate 121 is misaligned with the discharge elements 22, and a portion of the second dust collecting plate 122 is opposite to the discharge elements 22. When the air purifying device purifies air, the discharge member 22 is energized with positive high voltage, the first dust collecting plate 121 and the second dust collecting plate 122 are grounded, and since the part of the second dust collecting plate 122 is opposite to the discharge member 22 in the second direction, the discharge member 22 is facilitated to ionize the air, a large amount of positive ions are generated, so that particles in the air are positively charged, and the positively charged particles approach the first dust collecting plate 121 and the second dust collecting plate 122 under the action of the electric field force to be collected by the first dust collecting plate 121 and the second dust collecting plate 122.

Specifically, the first dust collecting plates 121 and the second dust collecting plates 122 are provided with a plurality of blocks, a plurality of first dust collecting plates 121 are arranged between every two adjacent second dust collecting plates 122, and every two adjacent first dust collecting plates 121 are arranged at intervals to increase the purifying effect. The electrical purification apparatus 100 further includes a first conductive pillar, one end of the first conductive pillar is connected to the first assembly 11, the other end of the first conductive pillar passes through all the first dust collecting plate 121 and the second dust collecting plate 122 and is connected to the first assembly 11, and all the first dust collecting plate 121 and the second dust collecting plate 122 are conducted through the first conductive pillar.

In one embodiment, the discharge element 22 is made of a metallic material. Specifically, the discharge unit 22 includes a plurality of discharge wires 221 (see fig. 4), the discharge wires 221 are tungsten wires or molybdenum wires, one discharge wire 221 is disposed between two adjacent second dust collection plates 122, and one discharge wire 221 is also disposed between the edge second dust collection plate 122 and the first assembly 11.

Research shows that when the particles approach to the dust collecting plate and are collected, the efficiency of the dust collecting plate for collecting the particles at one time is not high due to the fact that the wind resistance in the dust collecting cavity 111 is small and the wind speed passing through the cross section is too high under the condition of large wind volume. Referring to fig. 8, further, the electrical purification apparatus 100 further includes a conductive member 50 mounted on the first mounting member 11, the conductive member 50 being located in the dust collecting chamber 111 and extending in a first direction, the conductive member 50 being spaced apart from the dust collecting plate in a second direction intersecting the first direction. Wherein, in the second direction, the conductive member 50 is opposite to the portions of the first dust collecting plate 121 and the second dust collecting plate 122. Specifically, the conductive member 50 is provided between two adjacent first dust collecting plates 121, while the conductive member 50 is provided between the adjacent first dust collecting plates 121 and the second dust collecting plate 122. When the air purifying equipment works, the conductive piece 50 is electrified with the positive and the negative high voltage, and because the polarity of the conductive piece is the same as that of the charged particles, the conductive piece can apply deflection force to the moving particles, increase the speed of the conductive piece moving to the dust collecting plate and further improve the collection efficiency. And after the conductive piece 50 is added, the conductive piece 50 is arranged between the dust collecting plates, namely, the conductive piece 50 occupies partial space between the dust collecting plates, so that the moving distance of particulate matters in an electric field is reduced, and the dust collecting efficiency is improved. Meanwhile, since the conductive member 50 applies a deflecting force to the moving particles, it is possible to apply resistance to the air to extend the time for the particles to pass through the electric field, thereby improving the discharging efficiency and further improving the dust collecting effect.

Specifically, in the second direction, the distance between the conductive member 50 and the dust collecting plate is 2mm to 5mm, that is, the distance between the conductive member 50 and the dust collecting plates located at both sides of the conductive member is 2mm to 5mm, so that the distance between the conductive member 50 and the dust collecting plates is not too small, breakdown is reduced, and the distance between the conductive member 50 and the dust collecting plates is not too large (when the distance is too large, a higher voltage is required to be applied to achieve a better dust collecting effect, and when the higher voltage is applied, the power of the whole electric purification apparatus 100 is too large, and the energy consumption is higher), thereby reducing the energy consumption of the electric purification apparatus 100.

The electrical purification apparatus 100 further includes a second conductive pillar, one end of which is connected to the first assembly 11, and the other end of which is connected to the first assembly 11 after passing through all the conductive members 50 through a connection hole 52 (see fig. 9), and all the conductive members 50 are conducted through the second conductive pillar.

Further, in order to facilitate the penetration of the first conductive pillar, each conductive member 50 is provided with a first avoiding hole 51; in order to facilitate the penetration of the second conductive pillar, a second avoiding hole is formed in each of the first dust collecting plate 121 and the second dust collecting plate 122.

Research also finds that a uniform strong electric field exists between the secondary high voltage and the ground, after large particles enter the electric field, the electric field generated by carrying charges or polarization is superposed near the particles to generate a local tip electric field, and if the positive and negative electrodes are relatively close to each other, the superposed tip electric field can break through air gaps of the positive and negative electrodes to generate discharge and crackle sounds. In order to realize efficient filtration, a strong electric field and a short positive and negative electrode distance need to be set, and when particles enter the electric field, air breakdown is easy to occur. Further research shows that the air breakdown phenomenon can be avoided if the secondary high-voltage electrode is coated.

In one embodiment, the conductive member 50 includes a conductive plate and an insulating layer, and the insulating layer is wrapped outside the conductive plate. That is, the conductive member 50 is conductive through the internal conductive plate, and the insulating layer is wrapped outside the conductive plate, so that the air breakdown phenomenon can be avoided.

Specifically, the conductive plate is made of a metal material or a conductive plastic material. The surface of the conductive plate can be sprayed with insulating high-pressure resistant powder, oil resin (such as epoxy resin, amino resin and the like) paint and the like to form an insulating layer outside the conductive plate. In other embodiments, polymer materials such as PE and PVC may be added on the surface of the conductive plate, or rubber, silica gel, or silicon rubber may be added on the surface of the conductive plate to form an insulating layer.

Another embodiment of the present invention further provides an air purifying apparatus including the electrical purification apparatus 100.

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

Claims (11)

1. An electrical purification apparatus, comprising:

the dust collection mechanism (10) comprises a first assembly part (11) and a dust collection plate, wherein the dust collection plate is arranged on the first assembly part (11);

the discharging mechanism (20) comprises a second assembly part (21) and a discharging part (22), and the discharging part (22) is arranged on the second assembly part (21);

wherein the discharge mechanism (20) is detachably matched with the dust collecting mechanism (10) through the matching of the first assembly part (11) and the second assembly part (21), and air flow can flow from the discharge part (22) to the dust collecting plate.

2. The electrical purification apparatus according to claim 1, wherein one of the first assembly member (11) and the second assembly member (21) is provided with a first fitting portion (30) and the other is provided with a second fitting portion (40), and the first fitting portion (30) is inserted into or separated from the second fitting portion (40) to detachably connect the first assembly member (11) and the second assembly member (21).

3. Electrical purification apparatus according to claim 2, wherein the first engagement portion (30) comprises a guide portion (31) and a limit portion (32) communicating with each other; the second fitting part (40) comprises a resilient arm (41), the resilient arm (41) comprises a connecting part (411) and a curved part (412) which are connected to each other, the connecting part (411) is connected to the first fitting part (11) or the second fitting part (21);

the connecting portion (411) is accommodated in the guide portion (31), and the bent portion (412) abuts against the limiting portion (32) to limit separation of the first assembly part (11) and the second assembly part (21).

4. Electrical purification apparatus according to claim 3, wherein the second engagement portion (40) comprises two resilient arms (41) arranged at a distance from each other, the curved portions (412) of the two resilient arms (41) being curved in a direction away from each other.

5. The electrical purification apparatus according to claim 2, wherein the first engagement portions (30) comprise at least two spaced apart portions, and the second engagement portions (40) are equal in number and in one-to-one correspondence with the first engagement portions (30).

6. The electrical purification apparatus according to claim 1, wherein a dust collecting chamber (111) is provided in the first assembly member (11), the first assembly member (11) is provided with a first opening (112) and a second opening (113) respectively communicated with two ends of the dust collecting chamber (111), and at least a portion of the dust collecting plate is provided in the dust collecting chamber (111); an assembly cavity (211) is formed in the second assembly part (21), a third opening (212) and a fourth opening (213) which are respectively communicated with two ends of the assembly cavity (211) are formed in the second assembly part (21), and the discharging part (22) is arranged in the assembly cavity (211);

wherein the end of the second fitting (21) having the third opening (212) is connected to the end of the first fitting (11) having the first opening (112) to close the third opening (212) and the first opening (112), the fourth opening (213) forms an airflow inlet, and the second opening (113) forms an airflow outlet.

7. The electrical purification apparatus of claim 1, wherein the dust collection plates comprise a first dust collection plate (121) and a second dust collection plate (122) electrically connected, the first dust collection plate (121) and the second dust collection plate (122) each extending along a first direction, the first dust collection plate (121) and the second dust collection plate (122) being spaced apart in a second direction intersecting the first direction;

wherein, in the second direction, the first dust collecting plate (121) is opposite to a portion of the second dust collecting plate (122), the first dust collecting plate (121) is offset from the discharge member (22), and a portion of the second dust collecting plate (122) is opposite to the discharge member (22).

8. The electrical purification apparatus according to claim 1, further comprising an electrically conductive member (50) mounted to the first mounting member (11), wherein the dust collecting plate and the electrically conductive member (50) each extend in a first direction, and the dust collecting plate and the electrically conductive member (50) are spaced apart in a second direction intersecting the first direction;

wherein, in the second direction, the conductive member (50) is at least partially opposite the dust collection plate; the conductive member (50) is of the same type as the discharge member (22) in terms of charging, and the conductive member (50) has a potential lower than that of the discharge member (22).

9. Electrical purification apparatus according to claim 8, wherein the distance between the electrically conductive member (50) and the dust collection plate in the second direction is 2mm-5 mm.

10. The electrical purification apparatus of claim 8, wherein the electrically conductive member (50) comprises an electrically conductive plate and an insulating layer, the insulating layer surrounding the electrically conductive plate.

11. An air cleaning apparatus comprising an electrical cleaning device according to any one of claims 1 to 10.

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