CN217900114U - Air inlet filter equipment and air conditioner - Google Patents

Abstract

The application provides an air inlet filter equipment and air conditioner, air inlet filter equipment is including relative first lid and the second lid that sets up and filter element group spare, filter element group spare includes the at least two-layer filter core that sets gradually along the flow direction of air inlet, and wherein at least one deck filter core is for removing the oil filter core. The air inlet filtering device can purify smoke and filter VOC such as grease to prevent oil smoke in a kitchen and the like from entering the air conditioner, and further prevent the influence of the oil smoke in the kitchen on the performance of the air conditioner. And, air inlet filter equipment's the air inlet filter equipment who takes of being convenient for, installation and dismantlement compare in the fixed air inlet filter equipment who sets up in the air conditioner, and the air inlet filter equipment that this application embodiment provided is convenient for change in time according to in service behavior to guarantee effectual filter effect. The intake air filtering device is particularly suitable for kitchen air conditioners.

Description

Air inlet filter equipment and air conditioner

Technical Field

The application relates to the technical field of air conditioners, in particular to an air inlet filtering device and an air conditioner.

Background

Along with the improvement of the national standard of living, the proportion of installing the air conditioner in the kitchen is higher and higher, and during the in-service use, the oil smoke that the kitchen produced often can get into the air conditioner along with the air together, and then will exert an influence to the performance of air conditioner. Moreover, if the oil stain accumulated in the air conditioner cannot be cleaned in time, bacteria can be bred in the air conditioner, and the bacteria can be propagated indoors along with the air outlet of the air conditioner when the air conditioner is used, so that the indoor sanitary condition is influenced.

SUMMERY OF THE UTILITY MODEL

The application provides an air inlet filter equipment and air conditioner to filter the oil smoke in the air conditioner air inlet.

The application provides an air inlet filtering device which is used for filtering air inlet of an air conditioner and comprises a first cover body, a second cover body and a filter element assembly, wherein the first cover body and the second cover body are oppositely arranged, and an opening is formed in the first cover body; the filter element group spare has a filter cavity, first lid with the second lid is connected respectively the both ends of filter element group spare, the opening with filter the cavity intercommunication and get into or leave with the confession air inlet filter cavity, filter element group spare includes the at least two-layer filter core that sets gradually along the flow direction of air inlet, and wherein an at least layer filter core is the deoiling filter core.

In some embodiments, the filter element assembly has an extending direction and has a first end and a second end oppositely disposed along the extending direction, the filter cavity penetrates the filter element assembly along the extending direction, the first cover is connected to the first end, the second cover is connected to the second end and closes the filter cavity at the second end, and each layer of the filter element is closed end to end along the circumferential direction of the filter cavity.

In some embodiments, the material of the oil removal filter element includes at least one of activated carbon and amino acid.

In some embodiments, the oil removing filter element is made of at least one of a hypaea clamp carbon cloth, an activated carbon sponge filter screen and a porous material provided with amino acid.

In some embodiments, the at least two layers of filter elements include a first filter element and an oil removal filter element which are sequentially arranged along the flowing direction of the inlet air, and the first filter element is a filter screen.

In some embodiments, the at least two layers of filter cores include a first filter core, an oil removing filter core and a second filter core which are sequentially arranged along the flowing direction of the inlet air, the first filter core and the second filter core are made of hard materials, a limiting space is formed between the first filter core and the second filter core, and the oil removing filter core is limited in the limiting space.

In some embodiments, the first filter element and the second filter element are both metal filter screens.

In some embodiments, the first cover is located on the underside of the filter cartridge assembly, and the first cover is provided with a sump.

In some embodiments, a liquid level detection sensor is further arranged at the oil collecting groove, and the liquid level detection sensor is in signal connection with a controller; or a window is arranged on the first cover body corresponding to the oil collecting groove.

In some embodiments, the air inlet filter device further includes an air inlet panel, the air inlet panel is connected to one side of the first cover body away from the filter element assembly, and an air inlet is arranged on the air inlet panel and communicated with the opening.

Correspondingly, the application also provides an air conditioner, which comprises an indoor unit main body, a connecting piece and the air inlet filtering device, wherein an air inlet is formed in the indoor unit main body; the connecting piece is arranged on the indoor unit main body and is provided with a first connecting part; the air inlet filter device is provided with a second connecting part, the first connecting part is detachably connected with the second connecting part, and the filter element assembly is positioned at the upstream of the air inlet.

The application has the following beneficial effects: the air inlet filtering device can purify smoke and filter VOC (volatile organic compounds) such as grease and the like so as to prevent oil smoke and the like in a kitchen from entering the air conditioner, and further prevent the influence of the oil smoke in the kitchen on the performance of the air conditioner. And, the air inlet filter equipment's be convenient for take, installation and dismantlement compare in the fixed air inlet filter equipment who sets up in the air conditioner, and the air inlet filter equipment that this application embodiment provided is convenient for change in time according to the in service behavior to guarantee effectual filter effect. The intake air filtering device is particularly suitable for kitchen air conditioners.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 shows an exemplary exploded view of a filter unit.

Fig. 2 schematically shows a further exploded view of the filter element assembly on the basis of fig. 1.

Fig. 3 shows an exemplary schematic of the intake air filter device.

FIG. 4 is a schematic view illustrating another angle of the intake air filter device.

Fig. 5 is an exploded view of the air intake filter device illustrating the connection to the remaining components.

The main components in this application are numbered as follows:

inlet air Filter 1000 Filter Unit 100

Opening 111 of first cover 110

Second cover 120 of oil collecting tank 112

Filter element assembly 130 first filter element 131

Oil removal cartridge 132 second cartridge 133

First end 134 and second end 135

Filter cavity 136 air intake panel 140

Airflow inlet 141 grille 142

Flanging 143 connector 150

Through hole 151

Detailed Description

The technical solutions in the embodiments of the present application will be described below clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any inventive work, are within the scope of protection of the present application. Furthermore, it should be understood that the detailed description and specific examples, while indicating preferred embodiments of the present application, are given by way of illustration and explanation only, and are not intended to limit the present application. In the present application, unless otherwise specified, the use of directional terms such as "upper", "lower", "left" and "right" generally means upper, lower, left and right in the actual use or operation of the device, and specifically, the direction of the drawing in the drawings.

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 to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.

The present application provides an intake air filtering device and an air conditioner, which are described in detail below. It should be noted that the following description of the embodiments is not intended to limit the preferred order of the embodiments of the present application. In the following embodiments, the description of each embodiment has its own emphasis, and reference may be made to the related description of other embodiments for parts that are not described in detail in a certain embodiment.

Referring to fig. 1, an embodiment of the present application provides an intake air filtering device for being installed at an intake of an air conditioner to filter intake air of the air conditioner. The intake air filtering device includes a first cover 110, a second cover 120, and a filter element assembly 130.

The first cover 110 and the second cover 120 are used for supporting and fixing the filter element assembly 130, and form a filter unit 100 after being connected with the filter element assembly 130, the filter unit 100 can be integrally installed and disassembled in use, and a user can select to hold the first cover 110 or the second cover 120 without holding the filter element assembly 130 according to the orientation during installation and disassembly, so that contact with stains on the filter element assembly 130 is avoided, and the filter element assembly 130 is conveniently replaced. In the present embodiment, please refer to fig. 1, which shows an exploded schematic view of the first cover 110, the second cover 120 and the filter element assembly 130, wherein the filter element assembly 130 has an extending direction Z, the first cover 110 and the second cover 120 are disposed opposite to each other along the extending direction Z, and a space for connecting the filter element assembly 130 is formed between the first cover 110 and the second cover 120. Meanwhile, the first cover 110 is further provided with an opening 111, and the opening 111 penetrates through the first cover 110 along the extending direction Z, so that the air flow enters or leaves the filter unit 100.

With reference to fig. 1, the filter element assembly 130 extends along the extending direction Z, and the filter element assembly 130 has a filter cavity 136 extending therethrough along the extending direction Z, two opposite ends of the filter element assembly 130 along the extending direction Z are a first end 134 and a second end 135, respectively, the first end 134 is used for connecting the first cover 110, and the second end 135 is used for connecting the second cover 120. In this embodiment, the first cover 110 is connected to the first end 134 by hot melt adhesive, and the second cover 120 is connected to the second end 135 by hot melt adhesive. It is understood that in other embodiments, the filter element assembly 130 can be coupled to the first and second covers 110, 120 by, for example, bolting, clamping, welding, or other means.

The first cover 110, the second cover 120 and the filter element assembly 130 are connected together to form the filter unit 100, the first cover 110 covers the first end 134 of the filter element assembly 130, the opening 111 of the first cover 110 is communicated with the filter cavity 136, and the second cover 120 covers the second end 135 of the filter element assembly 130 and closes the filter cavity 136 at the second end 135. Here, in one embodiment, referring to fig. 1, the filter element assembly 130 can be provided with air inlet along the circumferential direction, and the air inlet can enter the filter cavity 136 through the opening 111, then move towards the outer side of the filter cavity 136 and leave the filter cavity 136 after passing through the filter element assembly 130; alternatively, in another embodiment, the intake air may also move circumferentially inward through the filter element assembly 130 to enter the filter cavity 136 and then exit the filter cavity 136 through the opening 111, as opposed to the intake direction shown in FIG. 1. The difference between the two embodiments is that the incoming air flows in opposite directions, but both flows through the filter element assembly 130 and is filtered along the periphery of the filter cavity 136. In other embodiments, the filter element assembly 130 may be only partially disposed along the circumferential direction for air to pass through, which may limit the amount of air but may also control the specific flow direction of the air.

Referring to fig. 2, in the present embodiment, the filter element assembly 130 includes three filter elements, namely a first filter element 131, an oil removal filter element 132 and a second filter element 133, and each filter element is closed end to end along the circumferential direction of the filter cavity 136 to form the filter cavity 136 in the middle (see fig. 1). Here, portions a and B in fig. 2 show a possible grid-like texture on the filter element, and the entire grid-like texture is not shown here in order to make the drawing cleaner and clearer. And, the first filter element 131, the oil removing filter element 132 and the second filter element 133 are sequentially arranged from inside to outside. When the inlet air enters the filter cavity 136 through the opening 111, the inlet air sequentially passes through the three filter elements from inside to outside, that is, the first filter element 131, the oil removing filter element 132 and the second filter element 133 are sequentially arranged along the flow direction of the inlet air. The first filter element 131 and the second filter element 133 are both metal filter screens. Here, the first filter element 131 and the second filter element 133 are hard structures and are not easily deformed, and the oil removal filter element 132 is generally a soft structure, so that the first filter element 131 and the second filter element 133 also play a role in limiting and fixing the oil removal filter element 132 in this embodiment. A limiting space is formed between the first filter element 131 and the second filter element 133, and the oil removing filter element 132 is limited in the limiting space. In addition, in this embodiment, the first ends 134 of the first filter element 131 and the second filter element 133 are both connected to the first cover 110, the second ends 135 of the first filter element and the second filter element are both connected to the second cover 120, and the oil removing filter element 132 is already limited in the limiting space, and its position is relatively limited, so that the two ends may not be connected to the first cover 110 and the second cover 120. Of course, in other embodiments, in order to ensure the stability requirement of the connection, the oil removal filter element 132 may also be configured such that the first end 134 is connected to the first cover 110, and the second end 135 is connected to the second cover 120.

Here, when using, the inlet air firstly passes through the first filter element 131, and here foreign matters such as large granular grease, impurities are filtered by the first filter element 131, and then the air current passes through the deoiling filter element 132, and the deoiling filter element 132 is mainly used for adsorbing small granular grease and impurities, and after passing through two layers of filter elements, the air current has basically completed filtering. Therefore, in the present embodiment, the second filter element 133 mainly functions to limit the soft oil removing filter element 132 together with the first filter element 131, so as to prevent the soft oil removing filter element 132 from shifting under the impact of the air flow and affecting the filtering effect. Of course, the second filter element 133 also performs a third filtering operation on the air flow to make the air flow cleaner.

It is understood that in other embodiments, the number of filter elements is not limited to the above examples, and the filter element assembly 130 only has at least two filter elements, and at least one of the filter elements is the oil removing filter element 132. Illustratively, the filter cartridge assembly 130 includes a first filter element 131 and an oil removal filter element 132 arranged in series along the flow direction of the intake air. In other embodiments, preferably at least one layer of the at least two layers of filter elements is a hard structure, and the filter element with the hard structure can be a metal filter screen or a ceramic filter screen, so that the other filter elements can be limited and fixed while filtration is realized, that is, the filter element with the hard structure can be used as a fixing frame for other filter elements. Of course, the filter elements can also be all arranged into soft structures such as foam sponge and the like, but a fixing frame is required to be additionally arranged to fix and limit each layer of filter elements.

The oil removal filter element 132 is used primarily to remove oil from the gas flow. In some embodiments, the material of the oil removing filter element 132 includes at least one of activated carbon and amino acid to filter grease in the air flow through the activated carbon or the amino acid, wherein the activated carbon and the amino acid are both materials used for realizing air purification in the field of air purifiers in the prior art, and herein, the material is transferred to the field of air conditioners. Illustratively, the material of the oil removing filter element 132 is at least one of HEPA carbon cloth (HEPA carbon cloth), activated carbon sponge filter screen and porous material with amino acid, that is, the oil removing filter element 132 includes a hollow closed structure formed by at least one of them. The sponge filter screen is formed by scattering activated carbon on a sponge filter screen, the porous material with the amino acid is formed by distributing an amino acid layer on porous materials such as porous sponge, and the materials are all the existing materials.

It can be known that, through the arrangement of the filter element assembly 130, the intake air filtering device 1000 can purify the flue gas and filter VOC (volatile organic compounds) such as grease to prevent the oil smoke of the kitchen and the like from entering the inside of the air conditioner, and further prevent the oil smoke of the kitchen from influencing the performance of the air conditioner.

In some embodiments, referring to fig. 1, the cross-section of the filter element assembly 130, i.e., the cross-section of the filter cavity 136, is substantially a kidney-shaped hole, i.e., a shape with two parallel lines in the middle and two closed semi-circular arcs at the two ends. It is understood that the cross-section of the filter element assembly 130 may be circular, square, rectangular, or irregular in other embodiments, which are not limited by the embodiment. Here, the cross-sectional shapes of the first cover body 110 and the second cover body 120 may be substantially adapted to the cross-sectional shape of the filter element assembly 130, so as to prevent the first cover body 110 and the second cover body 120 from having too many portions protruding outward in the circumferential direction with respect to the filter element assembly 130, and thus prevent the outer walls of the first cover body 110 and the second cover body 120 from interfering with other structures when the filter unit 100 is assembled, which facilitates the compact design of the filter unit 100, so as to save space and facilitate storage, transportation and assembly.

In some embodiments, in practical use, the extending direction Z is substantially vertical, and the first cover 110 is located at the lower side of the filter element assembly 130. Referring to fig. 1, in order to prevent grease accumulated on the filter element assembly 130 from dripping downward and affecting the cleanliness of the filter unit 100 or other components, a sump 112 is provided on the first cover 110, and it is understood that the position of the sump 112 corresponds to the position of the filter element assembly 130, and exemplarily, the projection of the filter element assembly 130 on the first cover 110 is located in the sump 112, so that grease can substantially fall into the sump 112 when moving downward. It is understood that in other embodiments, if the second cover 120 is located on the underside of the filter cartridge assembly 130, the oil sump 112 may be correspondingly disposed on the second cover 120.

In some embodiments, on the basis of the oil collecting tank 112, in order to timely replace the filtering unit 100 when the oil in the oil collecting tank 112 is too much, a liquid level detection sensor is further disposed at the oil collecting tank 112, and a signal of the liquid level detection sensor is connected to a controller, the controller may be a control circuit board of an air conditioner provided with the air inlet filtering device 1000 or another controller, and the controller can remind a user to replace the filtering unit 100 or display the liquid level of the oil to the user in real time after receiving a liquid level signal of a preset position. It is understood that, in other embodiments, a window may be opened on the first cover 110 for the user to observe the liquid level, a decoration cover may be openably installed at the window, and the decoration cover may shield the window during daily use to ensure the overall aesthetic property.

In some embodiments, referring to fig. 3 to fig. 5, the intake air filtering device 1000 further includes an intake panel 140, the intake panel 140 is connected to a side of the first cover 110 away from the filter element assembly 130, and an airflow inlet 141 is disposed on the intake panel 140, and the airflow inlet 141 is communicated with the opening 111 (see fig. 1 or fig. 2). Here, the opening 111 is used for air intake, and the shape and size of the airflow inlet 141 are approximately adapted to the opening 111. In practical use, especially when being assembled to the air conditioning indoor unit main body with the airflow inlet 141 at the ceiling, the air intake panel 140 can be kept flush with the ceiling after installation without forming a protrusion, so that dust or grease is prevented from accumulating in the protrusion to cause a sanitary hazard, and also a good appearance can be maintained. In addition, in this embodiment, the air intake panel 140 is provided with a grille 142 at the airflow inlet 141, the grille 142 divides the airflow inlet 141 into a plurality of sub-inlets, and the grille 142 can be used for guiding intake air and preventing large foreign matters such as flying insects from entering. Here, the air intake panel 140 may be detachably connected to the first cover 110, for example, by screws, magnetic attraction, or clamping, or may be non-detachably connected to the first cover 110, for example, by gluing or welding, and may be selected according to the material and actual requirements. In one embodiment, the intake air panel 140, the first cover 110, the filter element assembly 130, and the second cover 120 may be replaced as a unit after a period of use. In another embodiment, the first cover 110, the filter element assembly 130, and the second cover 120 together form the filter unit 100, the intake panel 140 is removably attached to the filter unit 100, and a replacement filter unit 100 can remain mounted on a previously used intake panel 140.

In some embodiments, referring to fig. 5, the intake air filtering device 1000 further includes a connecting member 150, where the connecting member 150 is configured to be disposed on an indoor unit main body of an air conditioner, an intake opening is disposed on the indoor unit main body, and the connecting member 150 is disposed at an upstream of the intake opening. Here, the connector 150 has a hollow ring shape, a through hole 151 is formed in the middle thereof, the through hole 151 is substantially formed in a shape following the filter unit 100 and the intake panel 140, and a flange 143 is formed at one end of the intake panel 140, which is far from the filter unit 100, in a circumferential direction. When the filter unit 100 is assembled, the filter unit 100 passes through the through hole 151, the flange 143 of the air intake panel 140 is blocked outside the through hole 151, and the flange 143 can form an installation limit so as to facilitate the connection between the filter unit 100 and the air intake panel 140 and the connecting member 150. And, have first connecting portion on the connecting piece 150, be provided with the second connecting portion on the air inlet panel 140, first connecting portion with the second connecting portion can cooperate each other in order to be connected to connecting piece 150 with air inlet panel 140 detachably, exemplarily first connecting portion with the second connecting portion can be for magnet or electro-magnet etc. both realize dismantling the cooperation through magnetism. And then be connected to the first lid 110 of air inlet panel 140, second lid 120 and filter element subassembly 130 can be installed to the upstream of the air intake of air conditioner, during the use, the air inlet flows through air inlet 141, opening 111 in proper order and then gets into filter cavity 136, and then just get into the air intake of air conditioner after filter element subassembly 130 leaves filter cavity 136 again to the filtration of air current has been realized.

It is understood that, in other embodiments, the second connection portion may not be disposed on the air intake panel 140, and may be disposed on the first cover 110, the filter element assembly 130, or the second cover 120. Also, the first connecting portion and the second connecting portion may be replaced with other detachable connecting structures, such as a first clamping portion and a second clamping portion, which may also enable the filter unit 100 to be detached for replacing the filter unit 100.

It can be known, the filter unit 100 of the air inlet filter device 1000 is convenient for take, install and dismantle, compare in the fixed air inlet filter device 1000 that sets up in the air conditioner, the air inlet filter device 1000 that this application embodiment provided helps changing filter unit 100 in time according to the in service behavior to guarantee effectual filter effect.

The air inlet filter device 1000 is used for being installed on an air conditioner to filter air inlet of the air conditioner, and accordingly, the embodiment of the application further provides the air conditioner which comprises an indoor unit main body, a connecting piece 150 and the air inlet filter device 1000. And an air inlet is formed in the indoor unit main body. In this embodiment, the connection member 150 is used as a part of the air conditioner. Of course, in other embodiments, the connector 150 may be used as a part of the intake air filter device 1000, which has no influence on the specific structure of the connector 150. The connecting member 150 is disposed on the indoor unit main body and has a first connecting portion; the intake air filtering device 1000 has a second connecting portion, the first connecting portion and the second connecting portion are detachably connected, and the filter element assembly 130 is located at the upstream of the intake opening.

Application example 1

In a first application example, an intake air filtering device 1000 is provided, where the intake air filtering device 1000 includes a first cover 110, a second cover 120, and a filter element assembly 130, and the filter element assembly 130 includes a first metal filter, a hepa carbon cloth, and a second metal filter, which are sequentially disposed along a flow direction of intake air, where the first metal filter is mainly used to filter large dirt particles, the hepa carbon cloth is mainly used to filter grease, especially small grease, and the second metal filter and the first metal filter jointly realize positioning of the hepa carbon cloth.

Application example two

In the second application example, an intake air filtering device 1000 is provided, which has a structure substantially the same as that of the first application example, except that an oil collecting groove 112 is further provided on the first cover 110, and the oil collecting groove 112 can be used for storing foreign matters such as grease falling from the filter element assembly 130.

Application example three

In a third application example, an air conditioner is provided, which includes an indoor unit main body installed at the top surface of a kitchen and an intake air filtering device 1000 provided in the second application example, where the intake air filtering device 1000 is located upstream of an air inlet of the indoor unit main body to filter intake air entering the air inlet, so as to prevent oil smoke in the intake air from entering the indoor unit main body along with air, thereby causing oil smoke blockage and affecting the use efficiency of the air conditioner and the sanitation condition of the air conditioner. And, this inlet air filter equipment 1000 installs on the indoor set main part through the mode of magnetism to it is convenient for installation and change. After a certain period of use, more foreign matters such as grease are accumulated in the oil collecting tank 112, at this time, the intake air filter 1000 is detached and replaced, and a new intake air filter 1000 can be conveniently and again installed on the indoor unit main body in a magnetic attraction manner.

It is to be understood that the terms in the present detailed description are all the same, the specific implementation details may refer to each other, the details that are not specifically described in some embodiments may refer to descriptions of other embodiments, the exemplary descriptions and technical effects shown in the foregoing embodiments can be implemented correspondingly, and repeated parts in this specification are not described again.

The intake air filtering device and the air conditioner provided by the application are described in detail above, and specific examples are applied to explain the principles and embodiments of the application, and the description of the above examples is only used to help explain the method and the core idea of the application; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims (11)

1. An inlet air filtering device (1000) for filtering inlet air of an air conditioner, characterized by comprising,

the first cover body (110) and the second cover body (120) are oppositely arranged, and an opening (111) is formed in the first cover body (110); and

filter element group spare (130), a filter cavity (136) has, first lid (110) with second lid (120) are connected respectively filter element group spare (130)'s both ends, opening (111) with filter cavity (136) intercommunication gets into or leaves with the confession air inlet filter cavity (136), filter element group spare (130) include along the at least two-layer filter core that the flow direction of air inlet set gradually, and wherein at least one deck filter core is deoiling filter core (132).

2. The intake air filter arrangement (1000) of claim 1, wherein the filter element assembly (130) has an extension direction and first and second ends (134, 135) disposed opposite along the extension direction, the filter cavity (136) extending through the filter element assembly (130) along the extension direction, the first cover (110) being connected to the first end (134), the second cover (120) being connected to the second end (135) and enclosing the filter cavity (136) at the second end (135), each layer of the filter elements being closed end-to-end along a circumference of the filter cavity (136).

3. The intake air filtering device (1000) as claimed in claim 1, wherein the oil removal filter element (132) is made of a material including at least one of activated carbon and amino acid.

4. The intake air filtering device (1000) according to claim 3, wherein the oil removal filter element (132) is made of at least one of a HEPA carbon cloth, an activated carbon sponge filter screen, and a porous material provided with amino acids.

5. The intake air filtering device (1000) according to claim 1, wherein the at least two layers of filter elements include a first filter element (131) and an oil removal filter element (132) which are sequentially arranged along the flow direction of intake air, and the first filter element (131) is a filter screen.

6. The intake air filtering device (1000) according to claim 1, wherein the at least two layers of filter elements include a first filter element (131), an oil removal filter element (132) and a second filter element (133) which are sequentially arranged along a flow direction of intake air, the first filter element (131) and the second filter element (133) are made of hard materials, a limiting space is formed between the first filter element (131) and the second filter element (133), and the oil removal filter element (132) is limited in the limiting space.

7. The intake air filtering device (1000) according to claim 6, wherein the first filter element (131) and the second filter element (133) are both metal filter screens.

8. The intake air filter (1000) of claim 1, wherein the first cover (110) is positioned on an underside of the filter element assembly (130), the first cover (110) having a sump (112).

9. The intake air filtering device (1000) of claim 8,

a liquid level detection sensor is also arranged at the oil collecting tank (112), and the liquid level detection sensor is connected with a controller through signals; or,

a window is arranged on the first cover body (110) corresponding to the oil collecting groove (112).

10. The intake air filter device (1000) of claim 1, further comprising an intake air panel (140), wherein the intake air panel (140) is connected to a side of the first cover (110) away from the filter element assembly (130), and an airflow inlet (141) is provided on the intake air panel (140), and the airflow inlet (141) is in communication with the opening (111).

11. An air conditioner is characterized by comprising a heat exchanger,

the indoor unit main body is provided with an air inlet;

a connection member (150) provided on the indoor unit main body and having a first connection portion; and

the intake air filter (1000) of any of claims 1-9, having a second attachment portion, the first attachment portion and the second attachment portion being removably attached, and the filter cartridge assembly (130) being located upstream of the intake air inlet.

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