CN218672411U - Indoor unit of air conditioner - Google Patents

Abstract

The application relates to the technical field of household appliances, and discloses an air-conditioning indoor unit which comprises a shell, wherein an accommodating space is formed in the shell, and an air inlet is formed in the shell; the filter screen is arranged at the air inlet and used for filtering the oil smoke flowing through the air inlet, and the filter screen is provided with a flow guide structure; the first electric heating wire is arranged on the filter screen and used for heating the filter screen to soften the oil stains on the filter screen and then flows along the flow guide structure. Through set up first electric heating wire and water conservancy diversion structure on the filter screen, can improve the efficiency of wasing the filter screen effectively.

Description

Indoor unit of air conditioner

Technical Field

The application relates to the technical field of household appliances, for example to an air conditioner indoor unit.

Background

With the increasing demand of people for quality of life, more and more families choose to install air conditioners in the kitchen to improve the comfort level of the kitchen environment. Because a user can produce a large amount of oil smoke in the cooking process, the oil smoke enters the air conditioner and can be adhered to the filter screen, and the performance of the air conditioner can be influenced.

The related art discloses a kitchen air conditioner, which comprises a shell, an evaporator, a tubular heat exchanger, a filter screen and a water collecting oil groove, wherein an air duct is arranged in the shell; the air duct is provided with a section of vertical air duct, and the evaporator is arranged in the vertical air duct; the tubular heat exchanger is arranged below the evaporator and selectively heats kitchen air passing through the tubular heat exchanger, and condensed water is generated on the surface of the evaporator by passing through the evaporator; the filter screen is arranged below the heat exchange tube in the air duct and is used for filtering the oil smoke entering from the air inlet; the water collecting oil groove is positioned below the filter screen and used for collecting condensed water and oil. The condensation water that can not only utilize the evaporimeter surface to get into the oil smoke condensation in the wind channel in the air conditioner operation, make partly stop in filter screen and water collector after the greasy dirt liquefaction, after the air conditioner got into clean mode, the heat that tubular heat exchanger produced takes place the heat exchange with the evaporimeter, make evaporimeter surface produce a large amount of comdenstion water and to the evaporimeter surface, the filter screen erodees, avoid too much greasy dirt to adhere to on evaporimeter and filter screen, cause the problem of frequent clearance of air conditioner, it is inside also to prevent a large amount of oil smoke entering air conditioner simultaneously.

In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:

directly utilize the comdenstion water to erode the filter screen, can increase the cleaning area and wash long time, and then lead to the cleaning efficiency not good.

SUMMERY OF THE UTILITY MODEL

The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview nor is intended to identify key/critical elements or to delineate the scope of such embodiments but rather as a prelude to the more detailed description that is presented later.

The embodiment of the disclosure provides an air conditioner indoor unit, which aims to improve the efficiency of cleaning a filter screen.

In some embodiments, the air conditioning indoor unit includes: the shell is internally provided with an accommodating space and is provided with an air inlet; the filter screen is arranged at the air inlet and used for filtering the oil smoke flowing through the air inlet, and the filter screen is provided with a flow guide structure; the first electric heating wire is arranged on the filter screen and used for heating the filter screen to enable oil stains on the filter screen to be softened and then flow along the flow guide structure.

In some embodiments, the filter screen comprises: a frame configured with a filtering window; the filter screen sheet is arranged on the filter window; the flow guide structure is arranged on the windward side of the frame, and the first electric heating wires are arranged on the leeward side of the frame.

In some embodiments, the frame includes a top frame, a first side frame and a second side frame, and the first electric heating wire is sequentially disposed on a leeward side of the frame along a direction of the first side frame, the top frame and the second side frame.

In some embodiments, the frame further includes a bottom frame, the number of the filter windows is multiple, the filter windows are uniformly distributed in multiple rows along the length direction of the frame, and every two adjacent rows of the filter windows define a vertical frame together; the first electric heating wire is arranged on the leeward side of the frame along the moving direction of the first side frame, the top frame, the vertical frame, the bottom frame and the second side frame in sequence.

In some embodiments, the flow directing structure comprises: the first guide plate is arranged at the edge part of the filtering window; the second guide plate is arranged at the edge part of the frame, a guide channel is defined by the second guide plate and the first guide plate together, and the guide channel is used for flowing oil stains.

In some embodiments, the edge portion of the filter window includes a top edge, a first side edge, and a second side edge, and the first baffle at the first side edge and the first baffle at the top edge are in smooth transition connection, and the first baffle at the second side edge and the first baffle at the top edge are in smooth transition connection.

In some embodiments, the top edge of the filter window is convex away from the bottom edge of the filter window.

In some embodiments, the air conditioning indoor unit further includes: and the oil collecting tank is arranged at the bottom end of the filter screen and is used for containing the oil stains flowing down along the flow guide structure.

In some embodiments, further comprising: and the second electric heating wire is arranged at the bottom end of the oil collecting tank along the length direction of the oil collecting tank and used for heating the oil collecting tank so as to soften the oil stain flowing into the oil collecting tank.

In some embodiments, an evaporator is further disposed in the accommodating space of the casing, and the indoor unit of the air conditioner further includes: a control module configured to control operation of electric heating wires including the first electric heating wire and the second electric heating wire and the evaporator in case of receiving a shutdown control instruction.

The air conditioner indoor unit provided by the embodiment of the disclosure can realize the following technical effects:

through set up water conservancy diversion structure and first electric heating wire on the filter screen, first electric heating wire heating filter screen makes the greasy dirt on the filter screen soften, and the greasy dirt after softening flows and washs more easily, and then can improve the efficiency of wasing the filter screen effectively. The softened oil stain flows along the flow guide structure on the filter screen, so that the oil stain is effectively prevented from flowing through the area cleaned by the filter screen to cause secondary pollution to the area, the cleaning area is increased, and the cleaning time is prolonged. The efficiency of cleaning the filter screen can be further improved by arranging the flow guide structure on the filter screen.

The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.

Drawings

One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the accompanying drawings and not in limitation thereof, in which elements having the same reference numeral designations are shown as like elements and not in limitation thereof, and wherein:

fig. 1 is a schematic cross-sectional view of an indoor unit of an air conditioner according to an embodiment of the present disclosure;

fig. 2 is a schematic structural diagram of a filter screen of an indoor unit of an air conditioner according to an embodiment of the present disclosure;

fig. 3 is a schematic structural view of a filter screen of another air conditioning indoor unit provided by the embodiment of the present disclosure;

fig. 4 is a schematic structural view of a filter screen of another air conditioning indoor unit according to an embodiment of the present disclosure.

Reference numerals:

100: a housing; 110 air inlets; 120: an air outlet; 130: an evaporator;

200: a filter screen; 211: filtering the window; 212: a top frame; 213: a first side frame; 214: a second side frame; 215: a bottom frame; 216: a vertical frame; 220: a first baffle; 230: a second baffle; 240: a first electric heating wire;

300: an oil sump; 310: a second electric heating wire.

Detailed Description

So that the manner in which the features and elements of the disclosed embodiments can be understood in detail, a more particular description of the disclosed embodiments, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown in simplified form in order to simplify the drawing.

The terms "first," "second," and the like in the description and in the claims, and the above-described drawings of embodiments of the present disclosure, 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 present disclosure described herein may be made. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion.

In the embodiments of the present disclosure, 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 disclosed embodiments and their examples and are not intended 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 meanings of these terms in the embodiments of the present disclosure can be understood by those of ordinary skill in the art as appropriate.

In addition, 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. Specific meanings of the above terms in the embodiments of the present disclosure can be understood by those of ordinary skill in the art according to specific situations.

The term "plurality" means two or more unless otherwise specified.

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 represents: a or B.

The term "and/or" is an associative relationship that describes objects, meaning that three relationships may exist. For example, a and/or B, represents: a or B, or A and B.

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

With reference to fig. 1 to 4, an indoor unit of an air conditioner according to the present disclosure includes a casing 100, a filter screen 200, and a first electric heating wire 240, wherein an accommodating space is formed inside the casing 100, and an air inlet 110 is formed in the casing; the filter screen 200 is arranged at the air inlet 110 and used for filtering the oil smoke flowing through the air inlet 110, and the filter screen 200 is provided with a flow guide structure; the first electric heating wire 240 is disposed on the filter screen 200 and used for heating the filter screen 200 to soften the oil stain on the filter screen 200 and then flow along the flow guiding structure.

Because a large amount of oil smoke can be generated in a kitchen, when air with oil smoke enters from the air inlet in the operation process of the air conditioner installed in the kitchen, the oil smoke in the air flowing through the air inlet can be filtered through the filter screen arranged at the air inlet. After long-time use, the oil stains adhered on the filter screen can block the meshes on the filter screen, and further the refrigerating or heating performance of the air conditioner is influenced. Meanwhile, oil stains adhered to the filter screen are not easy to clean, so that the use experience of a user is reduced.

Therefore, in the air-conditioning indoor unit provided by the embodiment of the present disclosure, the flow guide structure and the first electric heating wire 240 are arranged on the filter screen 200, and the first electric heating wire 240 heats the filter screen, so that the oil stain on the filter screen is softened, and the softened oil stain is easier to flow and clean, thereby effectively improving the efficiency of cleaning the filter screen 200. The softened oil stain flows along the flow guide structure on the filter screen 200, so that the oil stain is effectively prevented from flowing through the area cleaned by the filter screen to cause secondary pollution, the cleaning area is increased, and the cleaning time is prolonged. By providing the flow guide structure on the filter screen 200, the efficiency of cleaning the filter screen 200 can be further improved.

Optionally, the filter screen 200 comprises a frame configured with a filter window 211 and a filter screen sheet (not shown in the figure); the filter screen sheet is arranged on the filter window 211; wherein, the diversion structure is arranged on the windward side of the frame, and the first electric heating wire 240 is arranged on the leeward side of the frame.

By setting the frame, the filter window 211 is constructed on the frame, and the filter screen sheet is set in the filter window 211. By adopting the arrangement, on one hand, the frame is arranged to support the filter screen, so that the filter screen can be effectively prevented from deforming, and further the pollution of the filtering effect to the inside of the indoor unit of the air conditioner is reduced. Meanwhile, the filter screen sheet is arranged on the filter window 211 on the frame, so that the filter screen 200 can be more conveniently installed and fixed. On the other hand, the arrangement of the flow guiding structure and the first electric heating wire 240 is facilitated by arranging the frame.

The flow guiding structure is arranged on the windward side of the frame, and the first electric heating wires 240 are arranged on the leeward side of the frame. The windward side refers to a side of the frame facing the air inlet 110, and the other side is a leeward side of the frame.

In the operation process of the air-conditioning indoor unit, air with oil smoke enters from the air inlet 110, is filtered by the filter screen 200, enters the air-conditioning indoor unit for heat exchange, and then flows out from the air outlet 120. Therefore, the oil is mainly adhered to the windward side of the filter screen 200, that is, the side of the filter screen 200 facing the air inlet 110. Based on this, set up the water conservancy diversion structure and more be convenient for carry out the drainage to the greasy dirt after softening in the windward side of frame to improve the effect of wasing filter screen 200. And the first electric heating wire 240 is arranged on the leeward side of the frame, so that the first electric heating wire 240 can be effectively prevented from being polluted by oil stains, and the heating effect of the first electric heating wire 240 is further ensured.

Specifically, the temperature of the frame is increased by the first electric heating wire 240, so that the oil stains adhered to the frame are softened and then flow along the flow guide structure. Meanwhile, the temperature of the filter screen sheet is increased through heat conduction of the frame, so that oil stains adhered to the filter screen sheet are softened and flow to the frame and then continue to flow along the flow guide structure.

Optionally, the frame and the filter screen sheet are made of metal.

Because the heat conduction performance of metal material is preferred, consequently, all adopt metal material with frame and filter screen piece material. Thus, the speed of heating the filter screen 200 can be effectively increased, and the speed of softening the oil stains can be further increased, so that the efficiency of cleaning the filter screen 200 can be effectively increased.

Optionally, the air inlet 110 is disposed on a top end surface of the housing 100, a first end of the filter screen 200 corresponding to the air inlet 110 is vertically disposed in the accommodating space of the housing 100, and one end of the filter screen 200 facing the air inlet 110 is bent toward a second end of the air inlet 110 and extends to the second end of the air inlet 110.

By adopting the arrangement form, on one hand, the filter screen 200 is vertically arranged in the accommodating space in the shell 100, so that the oil stain can flow conveniently under the action of gravity. On the other hand, one end of the filter screen 200 facing the air inlet 110 is bent toward the second end of the air inlet 110 and extends to the second end of the air inlet 110, so that the comprehensiveness of the filter screen 200 in filtering the air flowing through the air inlet 110 can be ensured, and the filtering effect of the filter screen 200 can be further effectively improved.

Optionally, the frame includes a top frame 212, a first side frame 213 and a second side frame 214, and the first electric heating wire 240 is sequentially disposed on the leeward side of the frame along the direction of the first side frame 213, the top frame 212 and the second side frame 214.

Thus, by heating the edges of the frame, the speed of softening the oil stains can be further increased. Meanwhile, heat conduction is carried out through a plurality of edges of the frame, so that the softening speed of oil stains on the filter screen piece can be increased. By arranging the first electric heating wire 240 on the leeward side of the frame along the trend of the first side frame 213, the top frame 212 and the second side frame 214 in sequence, the efficiency of cleaning the filter screen can be effectively improved by adopting the arrangement mode.

Optionally, the frame further includes a bottom frame 215, the number of the filtering windows 211 is multiple, the multiple filtering windows 211 are uniformly distributed in multiple rows along the length direction of the frame, and each two adjacent rows of the filtering windows 211 define a vertical frame 216; the first electric heating wire 240 is sequentially arranged on the leeward side of the frame along the trend of the first side frame 213, the top frame 212, the vertical frame 216, the bottom frame 215 and the second side frame 214.

Through construct a plurality of filter windows 211 on the frame, can improve the intake of machine in the air conditioning effectively, and then can improve the heat exchange efficiency of machine in the air conditioning, promote user's use and experience.

The plurality of filtering windows 211 are uniformly distributed into a plurality of rows along the length direction of the frame, so that the uniformity of air inlet can be effectively improved, and the air inlet speed of the indoor unit of the air conditioner can be improved.

Every two adjacent columns of filtering windows 211 jointly define a vertical frame 216, and the first electric heating wires 240 are sequentially arranged on the leeward side of the frame along the trend of the first side frame 213, the top frame 212, the vertical frame 216, the bottom frame 215 and the second side frame 214.

Specifically, when only two rows of filter windows 211 are included, that is, only one vertical frame 216 is included, the first electric heating wires 240 are sequentially disposed on the lee side of the frame along the direction of the first side frame 213, the top frame 212, the vertical frame 216, the bottom frame 215, and the second side frame 214. When the frame comprises a plurality of vertical frames 216, the first electric heating wire 240 is sequentially arranged on the leeward side of the frames along the first side frame 213, the top frame 212, the first vertical frame 216, the bottom frame 215, the second vertical frame 216, and the top frame 212 \8230 \ 8230, and the second side frame 214.

By adopting the arrangement form, the first electric heating wires 240 are arranged on the frame of the filter screen 200 according to the S-shaped trend, so that the heating speed of the frame and the heating speed of the filter screen piece can be effectively improved, and the efficiency of cleaning the filter screen 200 can be effectively improved.

Optionally, the flow guiding structure includes a first flow guiding plate 220 and a second flow guiding plate 230, the first flow guiding plate 220 is disposed at an edge portion of the filtering window 211; the second guide plate 230 is disposed at an edge of the frame, and the second guide plate 230 and the first guide plate 220 define a guide channel for flowing the oil stain.

The first guide plate 220 and the second guide plate 230 are arranged to define a guide channel together, and oil stains on the frame flow along the guide channel. The oil stain on the filter screen sheet flows to the bottom edge of the filter window 211 and then continues to flow along the guide channel. By adopting the arrangement form, the oil stains on the frame are prevented from flowing onto the filter screen piece to cause secondary pollution to the filter screen piece, thereby prolonging the cleaning time of cleaning the filter screen 200.

In addition, set up second guide plate 230 at the edge portion of frame, can avoid the greasy dirt of filter screen 200 windward side to flow to the leeward side of filter screen 200 after first electric heating wire 240 softens effectively to cause the pollution to first electric heating wire 240 and air conditioning indoor set internals, and then because of being difficult for wasing the use that leads to reducing the user and experience.

Optionally, the edge portion of the filter window 211 includes a top edge, a first side edge and a second side edge, and the first baffle 220 at the first side edge and the first baffle 220 at the top edge are connected in a smooth transition, and the first baffle 220 at the second side edge and the first baffle 220 at the top edge are connected in a smooth transition.

The edge portions of the filter window 211 include a top edge, a first side edge and a second side edge, i.e., the bottom edge of the filter window 211 is not provided with the first baffle 220. By adopting the arrangement mode, the first guide plate 220 at the bottom edge can be effectively prevented from blocking the flow of oil stains on the filter screen.

Specifically, under the condition that the number of the filter windows 211 is one, the oil stains on the filter screen sheet flow to the bottom of the frame under the action of gravity, so that the oil stains can be collected more conveniently. The blocking of the filter screen sheet caused by the oil dirt still accumulating on the filter screen sheet due to the first guide plate 220 arranged at the bottom edge of the filter window 211 can be effectively avoided.

In the case that the filter windows 211 are plural, the first guide plates 220 positioned at the side edges of every adjacent two columns of the filter windows 211 define the guide flow passages together. In every two adjacent rows of the filtering windows 211, the oil stains on the filter screen sheets of the filtering windows 211 located above flow to the first guide plate 220 located at the top edge of the filtering windows 211 located below, and the oil stains are guided to the guide channel by the first guide plate 220. Thus, the oil stains on the filter screen sheets of the plurality of filter windows 211 can be polluted complementarily during flowing, and the efficiency of cleaning the filter screen 200 can be effectively improved.

The first baffle 220 at the first side edge of the filter window 211 is in smooth transition connection with the first baffle 220 at the top edge, and the first baffle 220 at the second side edge is in smooth transition connection with the first baffle 220 at the top edge. By adopting the arrangement form, the fluency of oil stain flowing can be effectively improved, and the efficiency of cleaning the filter screen 200 is further improved.

Optionally, the top edge of the filter window 211 is convex away from the bottom edge of the filter window 211.

The top edge of the filter window 211 is protruded away from the bottom edge of the filter window 211, and the first guide plate 220 provided at the top edge of the filter window 211 is adapted to the shape of the top edge. Thus, the first baffle 220 at the top edge of the filter window 211 has a downward inclination from the convex portion to both ends. With this arrangement, the flow speed of the oil stain guided to the guide passage by the first guide plate 220 passing through the top edge of the filter window 211 can be effectively increased.

Optionally, the indoor unit of the air conditioner further includes an oil collecting tank 300, and the oil collecting tank 300 is disposed at the bottom end of the filter screen 200 and is used for containing oil stains flowing down along the flow guide structure.

The oil collecting groove 300 is arranged at the bottom end of the filter screen 200, and the oil stain flows to the oil collecting groove 300 along the flow guide channel. By providing the oil sump 300, convenience in collecting oil contamination can be effectively improved. Optionally, the bottom edge of the frame is not provided with the second guide plate 230, so that the oil stain can be effectively prevented from flowing into the oil collecting tank 300, and meanwhile, the oil stain can be prevented from splashing due to the fact that the second guide plate 230 is arranged at the bottom edge of the frame, and secondary pollution is further caused.

Optionally, the indoor unit of the air conditioner further includes a second electric heating wire 310, and the second electric heating wire 310 is disposed at the bottom end of the oil collecting tank 300 along the length direction of the oil collecting tank 300 and is used for heating the oil collecting tank 300 to soften the oil stain flowing into the oil collecting tank 300.

By providing the second electric heating wire 310 at the bottom end of the oil sump 300, the second electric heating wire 310 heats the oil sump 300 to soften the oil stains flowing into the oil sump 300. With such an arrangement, the convenience and efficiency of cleaning the oil sump 300 can be effectively improved, and the oil stains can be prevented from adhering to the oil sump 300.

Optionally, an evaporator 130 is further disposed in the accommodating space of the casing 100, and the indoor unit of the air conditioner further includes a control module configured to control operations of the electric heating wires and the evaporator 130 when a shutdown control instruction is received, where the electric heating wires include a first electric heating wire 240 and a second electric heating wire 310.

In the air conditioner indoor unit provided by the embodiment of the present disclosure, the filter screen 200 is cleaned by the condensed water.

Specifically, under the condition that a shutdown control instruction is received, the electric heating wire is controlled to operate until the temperature of the filter screen 200 reaches a first preset temperature; under the condition that the temperature of the filter screen 200 reaches a first preset temperature, controlling the electric heating wire to operate at the current temperature for a first preset time; controlling the electric heating wire to cool until the temperature of the filter screen 200 reaches a second preset temperature; controlling the evaporator 130 to continuously operate for a second preset time period under the condition that the temperature of the filter screen 200 reaches a second preset temperature; the first preset temperature is greater than the second preset temperature.

Illustratively, the control module of the indoor unit of the air conditioner controls the electric heating wire to be separately powered on to operate when receiving a shutdown control instruction, so that the temperatures of the filter screen 200 and the oil collecting tank 300 are increased to a first preset temperature. The first preset temperature may be any value of [58, 62] ° c, e.g., 59 ℃, 60 ℃, 61 ℃. And then the control module controls the electric heating wire to operate at the current power for a first preset time. The first preset time period may be 10min. At this time, the oil on the filter screen 200 flows into the oil sump 300.

Further, the control module controls the electric heating wire to operate so that the temperature of the filter screen 200 and the oil sump 300 is lowered to a second preset temperature. The second preset temperature may be 30 ℃. The control module then controls the evaporator 130 to operate for a second predetermined period of time, which may be 10min. The cool air generated from the evaporator 130 is condensed on the filter to clean the filter 200.

The air conditioner indoor unit provided by the embodiment of the disclosure can automatically clean the filter screen 200 after being shut down every time, and can effectively avoid the influence on the air conditioner performance caused by the adhesion of oil stains on the filter screen 200 while improving the convenience of cleaning the filter screen 200.

The above description and drawings sufficiently illustrate embodiments of the disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. The embodiments of the present disclosure are not limited to the structures that have been described above and shown in the 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 (10)

1. An indoor unit of an air conditioner, comprising:

the shell is internally provided with an accommodating space and is provided with an air inlet;

the filter screen is arranged at the air inlet and used for filtering the oil smoke flowing through the air inlet, and the filter screen is provided with a flow guide structure;

the first electric heating wire is arranged on the filter screen and used for heating the filter screen, so that oil stains on the filter screen are softened and then flow along the flow guide structure.

2. An indoor unit of an air conditioner according to claim 1, wherein the filter net includes:

a frame configured with a filtering window;

the filter screen sheet is arranged on the filter window;

the flow guide structure is arranged on the windward side of the frame, and the first electric heating wires are arranged on the leeward side of the frame.

3. An indoor unit of an air conditioner according to claim 2,

the frame includes a top frame, a first side frame and a second side frame, first electric heating wire follows in proper order the trend of first side frame, top frame, second side frame set up in the leeward side of frame.

4. An indoor unit of an air conditioner according to claim 3,

the frame further comprises a bottom frame, the number of the filtering windows is multiple, the filtering windows are uniformly distributed in multiple rows along the length direction of the frame, and every two adjacent rows of the filtering windows define a vertical frame together;

the first electric heating wire is arranged on the leeward side of the frame along the moving direction of the first side frame, the top frame, the vertical frame, the bottom frame and the second side frame in sequence.

5. An indoor unit of an air conditioner according to claim 2, wherein the air guide structure includes:

the first guide plate is arranged at the edge part of the filtering window;

the second guide plate is arranged at the edge part of the frame, a guide channel is defined by the second guide plate and the first guide plate together, and the guide channel is used for flowing oil stains.

6. An indoor unit of an air conditioner according to claim 5,

the edge part of the filtering window comprises a top edge, a first side edge and a second side edge, and smooth transition connection is formed between the first guide plate positioned at the first side edge and the first guide plate positioned at the top edge, and between the first guide plate positioned at the second side edge and the first guide plate positioned at the top edge.

7. An indoor unit of an air conditioner according to claim 6,

the top edge of the filter window protrudes away from the bottom edge of the filter window.

8. An air conditioning indoor unit according to any one of claims 1 to 7, further comprising:

and the oil collecting tank is arranged at the bottom end of the filter screen and is used for containing the oil stains flowing down along the flow guide structure.

9. An indoor unit of an air conditioner according to claim 8, further comprising:

and the second electric heating wire is arranged at the bottom end of the oil collecting tank along the length direction of the oil collecting tank and used for heating the oil collecting tank so as to soften the oil stain flowing into the oil collecting tank.

10. An indoor unit of an air conditioner according to claim 9,

still be provided with the evaporimeter in the accommodation space of casing, machine still includes in the air conditioning:

a control module configured to control operations of electric heating wires including the first electric heating wire and the second electric heating wire and the evaporator in case of receiving a shutdown control instruction.

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