CN210632287U

CN210632287U - Electrode structure and air purifier for air purification

Info

Publication number: CN210632287U
Application number: CN201921038056.0U
Authority: CN
Inventors: 肖德玲; 封宗瑜; 胡镇韬; 曾焕雄; 肖利容; 王堃; 王贤波
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2019-07-03
Filing date: 2019-07-03
Publication date: 2020-05-29
Anticipated expiration: 2029-07-03

Abstract

The application relates to the technical field of air purification devices, in particular to an electrode structure for air purification and an air purifier comprising the same. The electrode structure for air purification comprises a tubular electrode and a radial electrode, wherein the radial electrode comprises a plurality of needle electrodes arranged in a radiation mode, and the radial electrodes are arranged inside the tubular electrode in series along the axis of the tubular electrode. The utility model provides an electrode structure for air purification can take place corona discharge between needle electrode and tubular electrode after the circular telegram, has increased the effective discharge area, produces a large amount of active particles, solves among the prior art problem that organic matter effects such as air purification device gets rid of formaldehyde are unsatisfactory, can obviously improve formaldehyde and get rid of efficiency.

Description

Electrode structure and air purifier for air purification

Technical Field

The application relates to the technical field of air purification devices, in particular to an electrode structure for air purification and an air purifier comprising the same.

Background

With the improvement of living standard and pursuit of people, consumers pay more and more attention to the removal of indoor formaldehyde. The existing indoor air purification device is provided with a formaldehyde filter screen for removing formaldehyde, and has two working modes, one mode is that the formaldehyde is rapidly purified by utilizing an activated carbon adsorption technology, but the activated carbon adsorption has the risks of adsorption saturation and secondary pollution, and simultaneously, the control of wind resistance also ensures that the amount of the activated carbon cannot be increased too much; the other method is to remove formaldehyde by a chemical adsorption mode, the method can meet the requirement of a user on removing formaldehyde, but the formaldehyde can be saturated after being adsorbed for a certain time, and the formaldehyde removal efficiency is low; in addition, the use requirement of a user about one year can be met by removing formaldehyde through the formaldehyde filter screen, and the formaldehyde filter screen needs to be replaced, so that secondary consumption is brought.

In order to solve the above problems, many purification devices adopt a corona discharge plasma technology to be applied to the field of formaldehyde purification in air, but the existing corona plasma structure has a low one-time treatment effect on organic matters such as formaldehyde, so that a novel plasma structure is urgently needed to treat organic pollutants such as formaldehyde.

SUMMERY OF THE UTILITY MODEL

In order to solve the above technical problem or at least partially solve the above technical problem, the present application provides an electrode structure for air purification and an air purifier.

In order to achieve the above object, according to one aspect of the present invention, there is provided an electrode structure for air purification.

The electrode structure for air purification according to the embodiment of the application comprises a tubular electrode and a plurality of radial electrodes, wherein the radial electrodes comprise a plurality of needle electrodes arranged in a radiation mode, and the radial electrodes are arranged inside the tubular electrode in series along the axis of the tubular electrode.

Furthermore, a plurality of through holes are hollowed in the tube wall of the tubular electrode.

Further, the through holes are uniformly distributed on the tubular electrode.

Furthermore, the section of the tubular electrode is circular, and each needle electrode of the radial electrode points to the inner surface of the tubular electrode.

Further, a plurality of the radial electrodes are fixed to a metal post, the metal post being coaxial with the tubular electrode.

Furthermore, the tubular electrode is made of stainless steel or aluminum, and the surface of the tubular electrode is provided with a photocatalyst coating.

Further, the photocatalyst coating comprises at least one of a vanadium dioxide coating, a titanium dioxide coating and a manganese dioxide coating.

Furthermore, the length of the needle-shaped electrode is 2mm-15mm, the distance between two adjacent radial electrodes is 5mm-40mm, and the closest distance between the radial electrodes and the tubular electrode is 3mm-8 mm.

In order to achieve the above object, according to a second aspect of the present invention, there is also provided an air cleaner.

According to the air purifier of this application embodiment including the above-mentioned electrode structure for air purification that this application provided, radial electrode is connected with the power, tubular electrode ground connection.

Further, the air purifier comprises a plurality of electrode structures for air purification, and the axes of the plurality of tubular electrodes are arranged in parallel.

Further, a plurality of the tubular electrodes are arranged in one or more layers.

The utility model provides an electrode structure for air purification can take place corona discharge between needle electrode and tubular electrode after the circular telegram, has increased the effective discharge area, produces a large amount of active particles, solves among the prior art problem that organic matter effects such as air purification device gets rid of formaldehyde are unsatisfactory, can obviously improve formaldehyde and get rid of efficiency.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, serve to provide a further understanding of the application and to enable other features, objects, and advantages of the application to be more apparent. The drawings and their description illustrate the embodiments of the invention and do not limit it. In the drawings:

fig. 1 is a perspective view schematically showing a structure of an electrode for air purification provided in an embodiment of the present application;

fig. 2 is a front view schematically showing an electrode structure for air purification provided in an embodiment of the present application;

fig. 3 is a schematic top view of an electrode structure for air purification provided in an embodiment of the present application;

fig. 4 is a cross-sectional view schematically showing an electrode structure for air purification provided in an embodiment of the present application;

FIG. 5 is a schematic diagram illustrating an installation relationship of radial electrodes in an electrode structure for air purification according to an embodiment of the present disclosure;

fig. 6 is a schematic structural diagram of an air purifier provided by an embodiment of the present application;

FIG. 7 is a sectional view taken along line A-A of FIG. 6;

FIG. 8 is a schematic structural diagram of another air purifier provided by an embodiment of the present application;

FIG. 9 is a cross-sectional view taken along line B-B of FIG. 8;

fig. 10 schematically shows three combinations of electrode structures in the air purifier according to the embodiment of the present application.

In the figure:

1. a radial electrode; 101. a needle electrode; 2. a tubular electrode; 3. a through hole; 4. a metal pillar.

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In this application, the terms "upper", "lower", "inner", "middle", "outer", "front", "rear", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.

Furthermore, the terms "disposed," "connected," and "secured" are to be construed broadly. For example, "connected" may be a fixed connection, a detachable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail with reference to the accompanying examples and figures 1-10.

As shown in fig. 1 to 5, the present embodiment provides an electrode structure for air purification. Fig. 1 is a perspective view of an electrode structure for air purification according to this embodiment; FIG. 2 is a front view of an electrode structure for air purification according to an embodiment of the present disclosure; FIG. 3 is a top view of an electrode structure for air purification according to an embodiment of the present disclosure; fig. 4 is a cross-sectional view showing an electrode structure for air purification provided in an embodiment of the present application; fig. 5 is a schematic diagram illustrating an installation relationship of radial electrodes in an electrode structure for air purification according to an embodiment of the present application.

As shown in the figure, the electrode structure for air purification comprises a tubular electrode 2 and radial electrodes 1, wherein the radial electrodes 1 comprise a plurality of needle electrodes 101 arranged in a radiation manner, and a plurality of radial electrodes 1 are arranged in series inside the tubular electrode 2 along the axis of the tubular electrode 2. The embodiment of the utility model provides an adopt the structure that discharges of needle electrode 101 and the cooperation of tubular electrode 2 formation, and needle electrode 101 forms the radial electrode 1 similar to the dandelion shape, and this radial electrode 1 is arranged into a string in tubular electrode 2, and this kind of radial electrode 1 and tubular electrode 2 complex discharge mode produce the plasma of higher concentration in equal finite space, when producing equal purifying effect, can be so that discharge power reduces, effectively reduce the ozone concentration that current plasma discharges. When specifically using, radial motor 2 is connected with the power, tubular electrode 2 ground connection, can take place corona discharge after the circular telegram between needle electrode 101 and tubular electrode 2, produce a large amount of active particle plasma, in this process, the electron directly collides with formaldehyde molecule and makes it decompose, and the chemical oxidation reaction that takes place between each active group that produces and the formaldehyde molecule in the electric field, and then play the effect of purifying formaldehyde, radial electrode 1 and tubular electrode 2 cooperation in this embodiment, compare in traditional corona discharge device, can obviously improve formaldehyde and get rid of efficiency.

The utility model discloses a tubular electrode 2 can also resume the use after the washing after long-term operation, does not have the problem of changing after saturation or long-term operation.

In the above embodiment, the flowing direction of the air current is entered from one end of the tubular electrode 2, and then flows out from the other end, the flowing direction is parallel to the axis of the tubular electrode 2, the effective contact chance of the air current and the plasma generated in the tubular electrode 2 is relatively smaller due to the flowing mode of the air current, in order to improve the situation, as shown in the figure, the utility model discloses a hollow out is provided with a plurality of through holes 3 on the pipe wall of the tubular electrode 2, discharges in the tubular electrode through radial ionization, and the flow channel direction of the air current can be perpendicular to the axis of the tubular electrode 2 at this moment, enters into the inside of the tubular electrode 2 from a part of through holes, and then flows out of the tubular electrode 2 from another part of through holes, so that the effective contact chance of the air current and the plasma generated in the tubular electrode 2 is greatly. Preferably, the through holes 3 are evenly distributed over the tubular electrode 2 to achieve a stable control of the air flow. The electrode structure of this embodiment can realize the high-efficient ionization of air in narrow and small space, and organic matters such as formaldehyde not only can high-efficiently be got rid of to this ionization process, can also realize the purpose of high-efficient disinfection of disinfecting, can be used for the air purification of narrow and small spaces such as desktop formula and car.

In some embodiments, the tubular electrode 2 may alternatively have a circular cross-sectional shape as shown, with each needle electrode 101 of the radial electrode 1 pointing towards the inner surface of the tubular electrode 2. The needle electrode 101 may be a metal material such as stainless steel, and may be a non-metal material whose surface is specially treated to realize high-efficiency discharge.

As an alternative embodiment, as shown in fig. 4 and 5, a plurality of radial electrodes 1 are fixed on a metal column 4, the metal column 4 is coaxial with the tubular electrode 2, and the metal column 4 can be used as a mounting carrier of the radial electrodes 1 and has certain strength; on the other hand, the metal posts 4 are used for connecting a plurality of radial electrodes 1 in series, and play a role of conducting electricity. The metal posts may be cylindrical in shape, including but not limited to solid or hollow cylinders.

As an alternative embodiment, the material of the tubular electrode 2 includes but is not limited to a conductive material such as stainless steel or aluminum, and preferably, the surface of the material of the tubular electrode 2 is treated by a special material, such as a photocatalyst coating with semiconductor characteristics, which can increase the range of light absorption and increase the efficiency of the catalyst, enhance the formaldehyde adsorption and accelerate the reaction rate of the plasma and the organic matters such as formaldehyde, and can achieve the effect of removing the organic pollutants such as formaldehyde with high efficiency and long duration. Wherein the photocatalyst coating includes but is not limited to at least one of a vanadium dioxide coating, a titanium dioxide coating and a manganese dioxide coating, and the surface of the tubular electrode 2 may be coated with a plurality of the above-mentioned coatings.

The size parameters of each part in the electrode structure for air purification can be specifically selected and designed according to specific use environment and requirements and specific power supply parameters, preferably, the input voltage is a high voltage less than 8KV, the input voltage can be a positive high voltage, a negative high voltage, an alternating current voltage or a pulse voltage, the length of the needle electrode 101 is 2mm-15mm, the distance between two adjacent radial electrodes 1 is 5mm-40mm, the closest distance between the radial electrode 1 and the tubular electrode 2 is 2mm-8mm, and the diameter of the metal column is 2mm-8 mm.

As shown in fig. 6-10, the present embodiment further provides an air purifier, and fig. 6 and 7 are schematic structural diagrams of the air purifier provided in the present embodiment; fig. 8 and 9 are schematic structural views of another air purifier provided in the present embodiment; fig. 10 is a schematic diagram showing three combinations of electrode structures in the air purifier provided by the embodiment of the application.

As shown in the drawings, the structure of the air cleaner includes the electrode structure for air cleaning provided in the above embodiment of the present application, in which the radial electrodes 1 are connected to a power supply and the tubular electrodes 2 are grounded.

In some embodiments, as shown in the figures, the air purifier includes a plurality of electrode structures for air purification, and the axes of the plurality of tubular electrodes 2 are arranged in parallel.

Alternatively, as shown in fig. 6 and 7, a plurality of tubular electrodes 2 are arranged in one layer, arrows in fig. 6 indicate the direction of air flow, and the air purifier in fig. 6 includes five electrode structures for air purification arranged in one layer, and air flows are simultaneously introduced from through holes at one side of the five tubular electrodes and then discharged from through holes at the other side.

Alternatively, as shown in fig. 8 and 9, a plurality of tubular electrodes 2 are arranged in a plurality of layers, arrows in fig. 8 indicate the direction of air flow, the air purifier in fig. 8 includes electrode structures for air purification arranged in three layers, each layer includes five electrode structures, and air flows simultaneously enter from through holes on one side of the five tubular electrodes on the first layer, then exit from through holes on the other side, sequentially enter into the five tubular electrodes on the second layer and the five tubular electrodes on the third layer, and finally exit from the other side.

Of course, the number of the electrode structures for air purification included in the air purifier of this embodiment is not limited to the above list, and may also include other forms, as shown in fig. 10, three optional combination forms are provided, as shown in the left drawing, the air purifier includes the electrode structures for air purification arranged in two layers, each layer includes three electrode structures, and the two layers of electrode structures are both arranged exactly opposite to each other; as shown in the figure, the air purifier comprises electrode structures for air purification arranged in two layers, each layer comprises three electrode structures, and the two layers of electrode structures are arranged in a staggered manner; as shown in the right figure, the air purifier comprises three layers of electrode structures for air purification, the number of the electrode structures on each layer is 2-3-2, and the adjacent electrode structures on the two layers are arranged in a staggered mode.

The utility model adopts the air purifier shown in figures 8 and 9 for testing, and the radial electrode adopts 4KV DC high voltage to discharge to the grounded tubular electrode; this design can realize the high-efficient effect of getting rid of formaldehyde under equal experimental condition, the utility model discloses under 500 cubic meter/hour amount of wind, the clean air volume that the test obtained formaldehyde can reach more than 400 cubic meter/hour, realizes that the plasma can high-efficiently get rid of the effect of organic matters such as formaldehyde.

Because this air purifier has included the electrode structure for air purification that the above-mentioned embodiment disclosed, consequently the air purifier who has this electrode structure for air purification also has above-mentioned all technological effects, does not repeated here any more. The air purifier according to the above embodiment may further include other necessary components or structures such as an air duct, a fan, a control circuit, etc., and the corresponding arrangement position and connection relationship may refer to the air purifier in the prior art, and the connection relationship, operation and working principle of each un-mentioned structure are known to those skilled in the art and will not be described in detail herein.

Some embodiments in this specification are described in a progressive or parallel manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments may be referred to each other.

The foregoing is merely a detailed description of the invention that enables those skilled in the art to understand or implement the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The electrode structure for air purification is characterized by comprising a tubular electrode (2) and radial electrodes (1), wherein the radial electrodes (1) comprise a plurality of needle electrodes (101) arranged in a radiation mode, and the radial electrodes (1) are arranged inside the tubular electrode (2) in series along the axis of the tubular electrode (2).

2. The electrode structure for air purification according to claim 1, wherein the tubular electrode (2) has a plurality of through holes (3) hollowed in the wall thereof.

3. Electrode structure for air purification according to claim 2, characterized in that the through holes (3) are evenly distributed over the tubular electrode (2).

4. The electrode structure for air purification according to claim 1, wherein the tubular electrode (2) has a circular cross-sectional shape, and each needle electrode (101) of the radial electrodes (1) is directed toward the inner surface of the tubular electrode (2).

5. The electrode structure for air purification according to claim 1, wherein a plurality of said radial electrodes (1) are fixed on a metal post (4), said metal post (4) being coaxial with said tubular electrode (2).

6. The electrode structure for air purification according to claim 1, wherein the tubular electrode (2) is made of stainless steel or aluminum, and the surface of the tubular electrode (2) has a photocatalyst coating.

7. The air-purifying electrode structure according to claim 6, wherein the photocatalyst coating layer comprises at least one of a vanadium dioxide coating layer, a titanium dioxide coating layer, and a manganese dioxide coating layer.

8. The electrode structure for air purification according to claim 6, wherein the needle-shaped electrode (101) has a length of 2mm to 15mm, the distance between two adjacent radial electrodes (1) is 5mm to 40mm, and the closest distance between the radial electrodes (1) and the tubular electrode (2) is 3mm to 8 mm.

9. An air cleaner comprising the electrode structure for air cleaning according to any one of claims 1 to 8, wherein the radial electrodes (1) are connected to a power supply, and the tubular electrode (2) is grounded.

10. The air cleaner according to claim 9, wherein the air cleaner comprises a plurality of the electrode structures for air cleaning, and axes of the plurality of tubular electrodes (2) are arranged in parallel.

11. The air cleaner according to claim 10, wherein a plurality of the tubular electrodes (2) are arranged in one or more layers.