Filtering device and equipment

Abstract

The utility model relates to the technical field of air treatment, and discloses a filtering device, which comprises a filter screen, a plurality of discharge electrodes, a first filter screen and a second filter screen, the filter screen comprises a first framework arranged along a first direction, and the discharge electrodes are arranged on the first framework and are used for ionizing air to generate ions; wherein part or all of the discharge electrodes are perpendicular to the filter screen. The discharge electrode can ionize air to generate positive ions or negative ions, and when the air flows through the filter screen, water molecules and dust in the air become charged ions, so that adsorption and collection of the water molecules and the dust are facilitated, and an ion sterilization effect can also be achieved. The utility model further discloses equipment.

Description

[0001] This application claims priority to the Chinese patent application entitled “Air conditioner, filtering device, ionization device, method, device and storage medium for self-cleaning of air conditioner” filed on March 10, 2023, with application number 202310234019.1, and is incorporated herein by reference in its entirety. Technical Field

[0002] The present application relates to the field of air treatment technology, for example, to a filtering device and equipment. Background Art

[0003] For devices with temperature control devices, such as air conditioners with heat exchangers, the self-cleaning of temperature control devices has always been a concern for users. For heat exchangers, due to the wide variety of pollutants in the air, dirt is attached to the surface of the heat exchanger for a long time. If it is not cleaned in time, the heat exchange performance of the heat exchanger will be significantly reduced, and even the air conditioner will frequently enter the protection state due to insufficient heat exchange performance and cannot work normally.

[0004] The related technology discloses an air conditioner that uses a combination of refrigeration system parameter control and detection judgment to achieve self-cleaning of the heat exchanger, including the following steps: obtaining a self-cleaning control instruction and entering a self-cleaning mode; adjusting the fan speed of the air conditioner and / or lowering the temperature of the indoor heat exchanger to condense frost on the heat exchanger; after condensation is completed, defrosting the heat exchanger.

[0005] In the process of implementing the embodiments of the present disclosure, it is found that there are at least the following problems in the related art:

[0006] During the self-cleaning process of the heat exchanger, the condensation rate on the heat exchanger surface is slow, which leads to low frosting efficiency and ultimately poor self-cleaning effect.

[0007] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present application, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Utility Model Content

[0008] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical components or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

[0009] The embodiments of the present disclosure provide a filtering device and equipment, which solve the problem that the condensation rate of the heat exchanger is slow, resulting in low frosting efficiency and poor self-cleaning effect.

[0010] In some embodiments, the filtering device comprises: a filter screen, the filter screen comprising a first skeleton arranged along a first direction, and further comprising:

[0011] A plurality of discharge electrodes are arranged on the first frame and used for ionizing air to generate ions;

[0012] Part or all of the discharge electrodes are perpendicular to the filter screen.

[0013] Optionally, negative ions are generated when the discharge electrode is connected to the negative electrode of a power source via an ion generating device.

[0014] Optionally, when the discharge electrode is connected to the positive pole of a power source through an ion generating device, positive ions are generated.

[0015] Optionally, when some of the discharge electrodes are perpendicular to the filter mesh, the discharge electrodes perpendicular to the filter mesh and the discharge electrodes inclined to the filter mesh are arranged adjacent to each other along the first skeleton.

[0016] Optionally, some or all of the discharge electrodes have the same height.

[0017] Optionally, when some discharge electrodes have the same height, a discharge electrode with a first height and a discharge electrode with a second height are arranged adjacent to each other along the first framework;

[0018] The first height is greater than the second height.

[0019] Optionally, the height of the discharge electrode ranges from 2 mm to 5 mm.

[0020] In some embodiments, the apparatus comprises: a temperature regulating device, and also comprises a filtering device as described in any of the above embodiments;

[0021] The discharge electrode is connected to electricity and the temperature regulating device is grounded, or the discharge electrode and the temperature regulating device are respectively connected to electricity of opposite polarity, so as to ionize the air; and when the air is ionized, the temperature of the temperature regulating device is lowered to condense water or frost for cleaning the surface of the temperature regulating device.

[0022] Optionally, the device includes an air conditioner;

[0023] The temperature regulating device comprises a heat exchanger.

[0024] Optionally, the discharge electrode is connected to a cathode to generate negative ions, and the heat exchanger is connected to a cathode or is grounded.

[0025] Optionally, the air conditioner includes a shell, the shell is provided with an air inlet, and the filter device covers the air inlet.

[0026] Optionally, the discharge electrode is located on a side of the filter device facing the heat exchanger.

[0027] Optionally,

[0028] The length direction of the air inlet is the first direction.

[0029] The filtering device and equipment provided by the embodiments of the present disclosure can achieve the following technical effects:

[0030] The filter device can ionize the air to produce positive or negative ions through the discharge electrode. When the air flows through the filter, the water molecules and dust in the air become charged ions, which facilitates the adsorption and collection of water molecules and dust, and can also play a role in ion sterilization.

[0031] After the filter device is applied to the equipment, when the discharge electrode is connected to electricity and the temperature regulating device is grounded, a unipolar electric field is formed between the two; when the discharge electrode and the temperature regulating device are connected to electricity of opposite polarity, a heterogeneous charge electric field is formed between the two. When the air flows through the unipolar electric field or the heterogeneous charge electric field, the water molecules and dust in the air become charged ions, and the charged ions move toward the temperature regulating device under the action of the electric field force. The charged water molecules are adsorbed to the surface of the temperature regulating device and condense quickly, and the charged dust and dirt on the surface of the temperature regulating device are dissolved in the water. In addition, as the temperature of the temperature regulating device decreases, a frost layer is formed on the surface of the temperature regulating device. In this way, the condensation, dehumidification and frosting efficiency are effectively improved, which makes it easier to use water or frost to clean the surface of the temperature regulating device, while also playing a role in cleaning dust in the air, and the charged ions can also play a sterilizing role.

[0032] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] One or more embodiments are exemplarily described by corresponding drawings, which do not limit the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements, and the drawings do not constitute a scale limitation, and wherein:

[0034] Figure 1 is a structural schematic diagram of an air conditioner provided by an embodiment of the present disclosure;

[0035] Figure 2 It is a schematic diagram of connecting the electric field of heterogeneous charges provided by an embodiment of the present disclosure;

[0036] Figure 3 is a schematic diagram of connecting a monopolar electric field provided by an embodiment of the present disclosure;

[0037] Figure 4 is a schematic diagram of the distribution of discharge electrodes provided by an embodiment of the present disclosure;

[0038] Figure 5is a schematic structural diagram of a discharge electrode provided in an embodiment of the present disclosure;

[0039] Figure 6 is a schematic diagram of another distribution of discharge electrodes provided by an embodiment of the present disclosure;

[0040] Figure 7 is a schematic diagram of the inclination angle of the discharge electrode provided in an embodiment of the present disclosure;

[0041] Figure 8 It is a schematic diagram of the height and spacing of the discharge electrodes provided in the embodiment of the present disclosure.

[0042] Reference numerals:

[0043] 100: housing; 101: air inlet; 102: air outlet; 110: heat exchanger; 200: filtering device; 210: first frame; 220: second frame; 230: discharge electrode; 231: first electrode; 232: second electrode. DETAILED DESCRIPTION

[0044] In order to be able to understand the features and technical contents of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0045] The terms "first", "second", etc. in the specification and claims of the embodiments of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged where appropriate, so that the embodiments of the embodiments of the present disclosure described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0046] In the embodiments of the present disclosure, the terms "upper", "lower", "inside", "middle", "outside", "front", "back" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are mainly intended to better describe the embodiments of the present disclosure and their embodiments, and are not intended to limit the indicated devices, elements or components to have a specific direction, or to be constructed and operated in a specific direction. Moreover, in addition to being used to indicate directions or positional relationships, some of the above terms may also be used to indicate other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in certain circumstances. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0047] In addition, the terms "disposed", "connected", and "fixed" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0048] Unless otherwise stated, the term "plurality" means two or more.

[0049] In the embodiment of the present disclosure, the character " / " indicates that the preceding and following objects are in an "or" relationship. For example, A / B indicates: A or B.

[0050] The term "and / or" is a description of the association relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or, A and B.

[0051] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

[0052] Combination Figure 1-8 As shown, an embodiment of the present disclosure provides a device, including a temperature regulating device and a filter device 200, wherein the filter device 200 includes a plurality of discharge electrodes 230. The discharge electrodes 230 are connected to electricity and the temperature regulating device is grounded, or the discharge electrodes 230 and the temperature regulating device are respectively connected to electricity with opposite polarities, so as to ionize the air; and, when the air is ionized, the temperature of the temperature regulating device is reduced to condense water or frost for cleaning the surface of the temperature regulating device.

[0053] In this embodiment, when the discharge electrode 230 is connected to electricity and the temperature regulating device is grounded, a unipolar electric field is formed between the two; when the discharge electrode 230 and the temperature regulating device are connected to electricity of opposite polarity, a heterogeneous charge electric field is formed between the two. When air flows through a unipolar electric field or a heterogeneous charge electric field, water molecules and dust in the air become charged ions, and the charged ions move toward the temperature regulating device under the action of the electric field force. After the charged water molecules are adsorbed on the surface of the temperature regulating device, they condense quickly, and the charged dust and dirt on the surface of the temperature regulating device dissolve in the water. In addition, as the temperature of the temperature regulating device decreases, a frost layer is formed on the surface of the temperature regulating device. In this way, the condensation, dehumidification and frosting efficiency are effectively improved, which makes it easier to use water or frost to clean the surface of the temperature regulating device, while also playing a role in cleaning dust in the air, and the charged ions can also play a sterilizing role.

[0054] In this embodiment, when the temperature regulating device is powered on, water molecules condense on the surface of the temperature regulating device to form a water film, which is polarized by the electric field. A stronger electric field is formed around the water film, which absorbs more surrounding water molecules, thereby further improving the condensation efficiency.

[0055] In this embodiment, when the discharge electrode 230 is connected to the negative pole of the power supply through the ion generator, negative ions are generated. When the discharge electrode 230 is connected to the positive pole of the power supply through the ion generator, positive ions are generated. Here, the power supply polarity of the ion generator is adjusted according to the electric field requirement.

[0056] For example, Figure 2 As shown, the discharge electrode 230 is connected to the negative pole of the power supply through the ion generator and generates negative ions, and the temperature adjustment device is made of a conductive material and connected to the positive pole of the power supply. At this time, a heterogeneous electric field is formed between the discharge electrode 230 and the temperature adjustment device. When the air flows through the electric field, water molecules and dust in the air become charged negative ions, and the charged negative ions move and are adsorbed to the surface of the temperature adjustment device.

[0057] In another exemplary embodiment, the discharge electrode 230 is connected to the positive electrode of the power supply through the ion generator and generates positive ions, and the temperature adjustment device is made of a conductive material and connected to the negative electrode of the power supply. At this time, a heterogeneous electric field is formed between the discharge electrode 230 and the temperature adjustment device, and when the air flows through the electric field, the water molecules and dust in the air become charged positive ions, and the charged positive ions move and are adsorbed to the surface of the temperature adjustment device.

[0058] Another exemplary example is, Figure 3As shown, the discharge electrode 230 is connected to the negative electrode of the power supply through the ion generator and generates negative ions, and the temperature adjustment device is made of a conductive material and is grounded. At this time, a monopolar electric field is formed between the discharge electrode 230 and the temperature adjustment device. When the air flows through the electric field, water molecules and dust in the air become charged negative ions, and the charged negative ions move and are adsorbed to the surface of the temperature adjustment device.

[0059] In another exemplary embodiment, the discharge electrode 230 is connected to the positive electrode of the power supply through the ion generator and generates positive ions, and the temperature adjustment device is made of a conductive material and is grounded. At this time, a monopolar electric field is formed between the discharge electrode 230 and the temperature adjustment device, and when the air flows through the electric field, the water molecules and dust in the air become charged positive ions, and the charged positive ions move and adsorb to the surface of the temperature adjustment device.

[0060] In some embodiments, the filter device 200 includes a filter screen and a plurality of discharge electrodes 230. Figure 4 The filter screen includes a first frame 210 arranged along a first direction. A plurality of discharge electrodes 230 are arranged on the first frame 210 for ionizing air to generate ions; wherein some or all of the discharge electrodes 230 are perpendicular to the filter screen.

[0061] In this embodiment, the discharge electrode 230 can ionize the air to generate positive ions or negative ions. When the air flows through the filter, the water molecules and dust in the air become charged ions, which facilitates the adsorption and collection of water molecules and dust, and can also play a role in ion sterilization.

[0062] Optionally, when the discharge electrode 230 is connected to the negative pole of the power supply through an ion generator, negative ions are generated. In this way, when the air flows through the filter, the water molecules and dust in the air become charged negative ions. When the discharge electrode 230 is connected to the positive pole of the power supply through an ion generator, positive ions are generated. In this way, when the air flows through the filter, the water molecules and dust in the air become charged positive ions.

[0063] In this embodiment, the first frame 210 is provided with a wire slot, and the transmission wires of the ion generator are arranged in the wire slot. In addition, each discharge electrode 230 is connected to the transmission wire in the wire slot at the corresponding position, so that the ion generator can release negative ions or positive ions through the discharge electrode 230.

[0064] Optionally, in the case where some discharge electrodes 230 are perpendicular to the filter screen, the discharge electrodes 230 perpendicular to the filter screen and the discharge electrodes 230 inclined to the filter screen are arranged adjacent to each other along the first frame 210. Here, the discharge electrodes 230 are arranged perpendicularly or inclined relative to the plane or curved surface where the filter screen is located. Furthermore, in the case where there are multiple surfaces where the filter screen is located, the discharge electrodes 230 are perpendicular or inclined to the surfaces where they are actually located.

[0065] In this embodiment, when the discharge electrode 230 is inclined relative to the surface where the filter screen is located, the inclination angle ranges from 20° to 70°. For example, the inclination angle can be selected from 20°, 30°, 40°, 50°, 60° or 70°.

[0066] For example, Figure 7 As shown, the same first frame 210 has two types of discharge electrodes 230, which are respectively called first electrodes 231 and second electrodes 232, and each type of discharge electrodes 230 has a plurality of them. The surface where the filter screen is located is a plane, the first electrode 231 is perpendicular to the plane, the second electrode 232 is arranged at a 60° inclination to the plane, and each first electrode 231 and each second electrode 232 are arranged adjacent to each other.

[0067] Optionally, some or all of the discharge electrodes 230 have the same height.

[0068] In this embodiment, the discharge electrode 230 is a needle-shaped electrode, whose fixed end is arranged on the first frame 210, and whose needle tip, namely the discharge end, is used to ionize the air. The height h of the discharge electrode 230 refers to the vertical distance between the discharge end of the discharge electrode 230 and the surface where the filter screen is located.

[0069] Optionally, when some of the discharge electrodes 230 have the same height, the discharge electrodes 230 with a first height and the discharge electrodes 230 with a second height are arranged adjacent to each other along the first skeleton 210; wherein the first height is greater than the second height.

[0070] For example, Figure 8 As shown, the same first skeleton 210 has two types of discharge electrodes 230, which are respectively called first electrodes 231 and second electrodes 232, and each type of discharge electrodes 230 has a plurality of discharge electrodes 230. The first electrode 231 has a first height, the second electrode 232 has a second height, and each first electrode 231 and each second electrode 232 are arranged adjacent to each other.

[0071] Optionally, the height h of the discharge electrode 230 is in the range of 2 mm to 5 mm.

[0072] Exemplarily, the height h of the discharge electrode 230 can be selected to be 2 mm, 2.5 mm, 3 mm, 3.5 mm, 4 mm, 4.5 mm, or 5 mm.

[0073] Optionally, the plurality of first skeletons 210 are arranged along a second direction, and the second direction is perpendicular to the first direction.

[0074] Optionally, the spacings between adjacent first skeletons 210 are the same or different. Preferably, the spacings between adjacent first skeletons 210 are the same.

[0075] Optionally, the distance d between adjacent discharge electrodes 230 on the same first skeleton 210 is the same or different; and / or the distance d between adjacent discharge electrodes 230 on different first skeletons 210 is the same or different.

[0076] Exemplarily, three first skeletons 210 are arranged in sequence along the second direction, wherein the distance between adjacent discharge electrodes 230 on the first first skeleton 210 is 10 mm, the distance between some adjacent discharge electrodes 230 on the second first skeleton 210 is 10 mm, the distance between some adjacent discharge electrodes 230 is 20 mm, and the distance between adjacent discharge electrodes 230 on the third first skeleton 210 is 10 mm.

[0077] Optionally, the filter screen further comprises a plurality of second frames 220. The second frames 220 are arranged along a second direction perpendicular to the first direction, and the second frames 220 are connected to the first frames 210. In this way, the second frames 220 and the first frames 210 form a frame of the filter screen.

[0078] Alternatively, if Figure 4 and Figure 5 As shown, the discharge electrode 230 is disposed at the intersection of the first frame 210 and the second frame 220 .

[0079] Optionally, a discharge electrode 230 is disposed at every first number of intersections in a plurality of intersections of the same first skeleton 210. The first number may be zero, that is, a discharge electrode 230 is disposed at each intersection.

[0080] Exemplarily, the first number is one, and there are 10 intersections on the first frame 210. In this case, a discharge electrode 230 is disposed at every other intersection, and a total of 5 discharge electrodes 230 are disposed on the first frame 210.

[0081] Alternatively, if Figure 6 As shown, the discharge electrodes 230 are disposed at intervals between adjacent second frames 220 of the first frame 210 .

[0082] Optionally, in a plurality of intervals of the same first skeleton 210, a discharge electrode 230 is disposed at every second number of intervals. Here, the second number may be zero, that is, a discharge electrode 230 is disposed at each interval.

[0083] Exemplarily, the second number is two, and there are 10 intervals on the first frame 210. In this case, a discharge electrode 230 is arranged every two intervals, and a total of four discharge electrodes 230 are arranged on the first frame 210.

[0084] Optionally, the above-mentioned device includes an air conditioner, and the above-mentioned temperature adjustment device includes a heat exchanger 110. The heat exchanger 110 is generally made of a metal material with thermal and electrical conductivity such as copper, aluminum or steel.

[0085] Optionally, the air conditioner includes a housing 100, in which a heat exchanger 110 and a fan are arranged. In addition, the housing 100 is provided with an air inlet 101 and an air outlet 102, and a filter device 200 is arranged to cover the air inlet 101. A filter structure is provided on the side of the filter away from the heat exchanger 110, and the filter structure includes a simple mesh filter, an activated carbon filter or a HEPA filter. A discharge electrode 230 is provided on the side of the filter facing the heat exchanger 110. When air flows through the filter structure, it can filter out some dust, and the fine dust that is not filtered out becomes charged ions when passing through the electric field and is adsorbed to the surface of the heat exchanger 110.

[0086] Optionally, the air inlet 101 is configured as a rectangular opening, the filter device 200 is configured as a rectangular shape that matches the air inlet 101, and the length direction of the air inlet 101 is the first direction, and the width direction of the air inlet 101 is the second direction. That is, the first frame 210 is arranged along the length direction of the air inlet 101, and the second frame 220 is arranged along the width direction of the air inlet 101.

[0087] In the above embodiment, the air conditioner has a self-cleaning mode, which includes a condensation stage, a frosting stage, and a defrosting stage, and in the self-cleaning mode, a monopolar electric field or a heterogeneous charge electric field is formed between the discharge electrode 230 and the heat exchanger 110. First, in the condensation stage, the air conditioner is in cooling operation and the fan is running, and air enters the housing through the filter from the air inlet 101 and blows toward the heat exchanger 110. When the air passes through the electric field, the water molecules and dust in the air become charged ions, and the charged water molecules are adsorbed to the surface of the heat exchanger 110 and condense quickly. At this time, the dirt on the surface of the heat exchanger 110 and the charged dust in the air adsorbed by it dissolve into the water. Then, in the frosting stage, the air conditioner is in cooling operation and the fan is stopped, and the water on the surface of the heat exchanger 110 is frosted. Finally, in the defrosting stage, the air conditioner runs for heating and the fan stops, at which time the frost layer melts and dirt and dust are taken away from the surface of the heat exchanger 110 by the melted water, thus completing the self-cleaning of the heat exchanger 110 and the frosting efficiency can be improved by about 40%.

[0088] For example, Figure 2 As shown, the discharge electrode 230 of the filter device 200 is connected to the negative pole of the power supply and generates negative ions, and the heat exchanger 110 is connected to the positive pole of the power supply. At this time, a heterogeneous electric field is formed between the discharge electrode 230 and the heat exchanger 110. In the condensation stage, the water molecules and dust in the casing that become charged negative ions are automatically adsorbed to the surface of the heat exchanger 110 under the action of the electric field force, and at this time, the fan is turned on to help blow the charged negative ions toward the heat exchanger 110.

[0089] Another exemplary example is, Figure 3 As shown, the discharge electrode 230 of the filter device 200 is connected to the negative pole of the power supply and generates negative ions, and the heat exchanger 110 is grounded. At this time, a monopolar electric field is formed between the discharge electrode 230 and the heat exchanger 110. In this way, the grounding of the heat exchanger 110 can improve the safety performance compared to connecting the positive pole of the power supply.

[0090] The air conditioner in the above embodiment also has a dehumidification mode, in which a monopolar electric field or a heterogeneous electric field is formed between the discharge electrode 230 and the heat exchanger 110. When dehumidifying, the air conditioner is in cooling operation and the fan is running, and air enters the housing through the filter screen from the air inlet 101 and blows toward the heat exchanger 110. When the air passes through the electric field, the water molecules in the air become charged ions, and the charged water molecules are adsorbed to the surface of the heat exchanger 110 and condense quickly. In this way, the dehumidification efficiency can be increased by 20%-30%.

[0091] Optionally, the air conditioner further comprises an electrode control module, which is used to control the power supply of part or all of the discharge electrodes 230 to be greater than or equal to 1 W. Here, the electrode control module adjusts the power supply of the discharge electrode 230 by controlling the ion generating device.

[0092] Exemplarily, the power supply power of the plurality of discharge electrodes 230 may be selected to be 1 W, 1.2 W, 1.3 W, 1.5 W, 1.6 W, 1.8 W, 1.9 W, 2 W, 2.1 W, 2.2 W, 2.5 W or 3 W.

[0093] Optionally, the electrode control module is used to control the power supply voltage of part or all of the discharge electrodes 230 to be greater than or equal to 3 kV. Here, the electrode control module adjusts the power supply voltage of the discharge electrode 230 by controlling the ion generating device.

[0094] In this embodiment, when the distance between adjacent discharge electrodes 230 is the first distance, the power supply voltage of the discharge electrodes 230 is controlled to be the first voltage; when the distance between adjacent discharge electrodes 230 is the second distance, the power supply voltage of the discharge electrodes 230 is controlled to be the second voltage, wherein the first distance is greater than the second distance, and the first voltage is greater than the second voltage. That is, the larger the distance between adjacent discharge electrodes 230, the larger the power supply voltage of the power supply of the plurality of discharge electrodes 230. Preferably, the distance between adjacent discharge electrodes 230 on the same filter device 200 is the same, so that it is easy to control.

[0095] Exemplarily, the supply voltage of the plurality of discharge electrodes 230 may be selected to be 3 kV, 3.1 kV, 3.2 kV, 3.3 kV, 3.5 kV, 3.6 kV, 3.7 kV, 3.8 kV, 4 kV, 4.5 kV or 5 kV.

[0096] The above description and the accompanying drawings sufficiently illustrate the embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Unless explicitly required, individual components and functions are optional, and the order of operations may vary. Portions and features of some embodiments may be included in or replace portions and features of other embodiments. The embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A filtering device, comprising a filter screen, the filter screen comprising a first frame (210) arranged along a first direction, characterized in that: Also includes: A plurality of discharge electrodes (230) are arranged on the first frame (210) and are used to ionize air to generate ions; Part or all of the discharge electrodes (230) are perpendicular to the filter screen.

2. The filtering device according to claim 1, characterized in that: When the discharge electrode (230) is connected to the negative electrode of a power source via an ion generating device, negative ions are generated.

3. The filtering device according to claim 1, characterized in that: When the discharge electrode (230) is connected to the positive electrode of a power source via an ion generating device, positive ions are generated.

4. The filtering device according to any one of claims 1 to 3, characterized in that: In the case where some of the discharge electrodes (230) are perpendicular to the filter mesh, the discharge electrodes (230) perpendicular to the filter mesh and the discharge electrodes (230) inclined to the filter mesh are arranged adjacent to each other along the first frame (210).

5. The filtering device according to any one of claims 1 to 3, characterized in that: Some or all of the discharge electrodes (230) have the same height.

6. The filtering device according to claim 5, characterized in that: When some of the discharge electrodes (230) have the same height, the discharge electrodes (230) having a first height and the discharge electrodes (230) having a second height are arranged adjacent to each other along the first framework (210); The first height is greater than the second height.

7. The filtering device according to any one of claims 1 to 3, characterized in that: The height of the discharge electrode (230) ranges from 2 mm to 5 mm.

8. An apparatus comprising a temperature regulating device, characterized in that: Also includes the filtering device (200) according to any one of claims 1 to 7; The discharge electrode (230) is connected to electricity and the temperature regulating device is grounded, or the discharge electrode (230) and the temperature regulating device are connected to electricity of opposite polarities, so that the air is ionized; and when the air is ionized, the temperature of the temperature regulating device is lowered to condense water or frost for cleaning the surface of the temperature regulating device.

9. The device according to claim 8, characterized in that The equipment includes an air conditioner; The temperature regulating device comprises a heat exchanger (110).

10. The device according to claim 9, characterized in that The discharge electrode (230) is connected to a negative electrode to generate negative ions, and the heat exchanger (110) is connected to a positive electrode or to the ground.

11. The device according to claim 9 or 10, characterized in that The air conditioner comprises a housing (100), the housing (100) is provided with an air inlet (101), and the filter device (200) is arranged to cover the air inlet (101).

12. The device according to claim 11, characterized in that The discharge electrode (230) is located on a side of the filter device (200) facing the heat exchanger (110).

13. The device according to claim 11, characterized in that The length direction of the air inlet (101) is the first direction.

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