CN216143857U - Air conditioner indoor unit and air conditioner - Google Patents

Abstract

The utility model relates to an air conditioner indoor unit and an air conditioner, and aims to solve the problems that the existing maintenance plate is single in function and not beneficial to the structural compactness of a cabinet air conditioner. Wherein, air conditioner internal unit includes: a housing having a lower shell with a rear fender and a service plate mounted to the rear fender; the maintenance plate is provided with a grating hole for indoor air to enter; the maintenance board is further provided with an air purification device, and the air purification device is used for purifying indoor air entering from the grid hole.

Description

Air conditioner indoor unit and air conditioner

Technical Field

The utility model relates to the technical field of air treatment, in particular to an air conditioner indoor unit and an air conditioner.

Background

The air conditioner is a household appliance which is widely applied, generally has heating and refrigerating functions, adjusts the temperature of indoor air when the ambient temperature is too low or too high, provides a proper indoor environment for users, and effectively improves the life quality of the users.

In the related art, an air conditioner generally includes an air conditioner internal unit and an air conditioner external unit connected to each other. The air conditioner indoor unit comprises a cabinet air conditioner and an air conditioner on-hook, and the cabinet air conditioner is widely applied due to the facts that the air conditioner is strong in wind power, convenient to install and the like. A maintenance opening is formed in a shell of the cabinet air conditioner, a maintenance plate is arranged on an upper cover of the maintenance opening, and the maintenance plate is generally only used when the air conditioner is installed on line after sale or maintained. For example, in the installation and on-line process, an operator removes the maintenance plate from the cabinet of the cabinet air conditioner, then performs the installation and on-line operation, and after the installation and on-line operation is completed, the maintenance plate is installed back on the cabinet of the cabinet air conditioner to shield the maintenance opening of the cabinet.

However, the maintenance board in the related art has a single function, which is not favorable for the compactness of the cabinet air conditioner.

SUMMERY OF THE UTILITY MODEL

The utility model provides an air conditioner indoor unit and an air conditioner, and aims to solve the problems that an existing maintenance plate is single in function and not beneficial to structural compactness of a cabinet air conditioner.

One aspect of the present invention provides an air conditioner indoor unit, including: a housing having a lower shell with a rear fender and a service plate mounted to the rear fender; the maintenance plate is provided with a grating hole for indoor air to enter; the maintenance board is further provided with an air purification device, and the air purification device is used for purifying indoor air entering from the grid hole.

In one possible implementation, the service plate includes: the maintenance side plates are respectively connected to two opposite sides of the maintenance back plate; the maintenance back plate is provided with an air inlet area, and the air inlet area is provided with the grid holes.

In one possible implementation manner, the air purification device comprises a plasma purifier which is arranged on the upper side of the air inlet area, so that the conveying grid holes are positioned in the processed area of the plasma purifier.

In one possible implementation, the air purification device includes a HEPA filter disposed at the grill opening to filter the indoor air entering from the grill opening.

In one possible implementation manner, the grid holes comprise a plurality of long holes, and the long holes are arranged along the transverse extension of the air conditioner internal unit; the plurality of long holes are also distributed at intervals along the vertical direction of the air conditioner indoor unit.

In one of the possible realization modes, the casing is further provided with a fresh air inlet, a washing device is further arranged in the casing, and the washing device is used for washing and purifying outdoor fresh air entering from the fresh air inlet.

In one possible implementation mode, the rear protection plate is provided with a fresh air inlet, the fresh air inlet is connected with a fresh air pipe, and the fresh air pipe is communicated with the outside.

In one possible implementation mode, the shell is internally provided with an anion device, the anion device is arranged at the upper end of the water washing device, and anions generated by the anion device under the action of high-voltage current can be contacted with water washing liquid in the water washing device to form water ions.

In one possible implementation manner, at least part of the grid holes are relatively positioned above the water washing device, and at least part of the negative ion generator of the negative ion device is arranged corresponding to the grid holes.

Still another aspect of the present invention provides an air conditioner including: the air conditioner external unit is connected with the air conditioner internal unit.

The utility model provides an air conditioner indoor unit and an air conditioner, wherein the air conditioner indoor unit is provided with a shell, the shell is provided with a lower shell, and the lower shell is provided with a rear protection plate and a maintenance plate arranged on the rear protection plate; the maintenance plate is provided with a grating hole for indoor air to enter; the maintenance board is further provided with an air purification device, and the air purification device is used for purifying indoor air entering from the grid hole. Like this, the maintenance board can have air inlet and air purification's function, has both richened the function of maintenance board, can cooperate the functional improvement design of cabinet air conditioner moreover, does benefit to the spatial layout who optimizes the cabinet air conditioner, does benefit to the compact structure nature that improves the cabinet air conditioner, does benefit to the air conditioner and realizes miniaturizing.

Drawings

The following detailed description of the present invention is provided in conjunction with the accompanying drawings, and it is to be understood that the detailed description set forth herein is merely illustrative and explanatory of the present invention and is not restrictive of the utility model as claimed below.

Fig. 1 is a partial structural schematic diagram of an air conditioner indoor unit according to an exemplary embodiment of the present invention;

fig. 2 is a schematic perspective view of a maintenance plate according to an exemplary embodiment of the present invention;

fig. 3 is a schematic perspective view of a second repair plate according to an exemplary embodiment of the present invention;

fig. 4 is a schematic perspective view of a service plate according to another exemplary embodiment of the present invention;

FIG. 5 is a partially enlarged view of portion A of FIG. 4;

fig. 6 is a rear view of a service plate provided in an exemplary embodiment of the present invention.

Description of reference numerals:

1-maintaining the plate; 11-repairing the rear plate; 12-maintenance of the side plates; 13-grid holes; 14-an air purification device; 141-HEPA filter screen; 142-a plasma purifier;

3-rear guard board; 31-fresh air inlet;

5-negative ion device.

Detailed Description

The following detailed description of the present invention is provided in conjunction with the accompanying drawings, and it is to be understood that the detailed description set forth herein is merely illustrative and explanatory of the present invention and is not restrictive of the utility model as claimed below.

In the related art, an air conditioner generally includes an air conditioner internal unit and an air conditioner external unit connected to each other. The air conditioner indoor unit comprises a cabinet air conditioner and an air conditioner on-hook, and the cabinet air conditioner is widely applied due to the facts that the air conditioner is strong in wind power, convenient to install and the like. A maintenance opening is formed in a shell of the cabinet air conditioner, a maintenance plate is arranged on an upper cover of the maintenance opening, and the maintenance plate is generally only used when the air conditioner is installed on line after sale or maintained. For example, in the installation and on-line process, an operator removes the maintenance plate from the cabinet of the cabinet air conditioner, then performs the installation and on-line operation, and after the installation and on-line operation is completed, the maintenance plate is installed back on the cabinet of the cabinet air conditioner to shield the maintenance opening of the cabinet. However, the maintenance board in the related art has a single function, which is not favorable for the compactness of the cabinet air conditioner.

In order to overcome the problems, the embodiment of the utility model provides an air conditioner indoor unit and an air conditioner, wherein the maintenance plate is provided with the grid holes for indoor air to enter and the air purification device, so that the maintenance plate has the functions of air inlet and air purification, the functions of the maintenance plate are enriched, the function improvement design of the cabinet air conditioner can be matched, the optimization of the spatial layout of the cabinet air conditioner is facilitated, the improvement of the structural compactness of the cabinet air conditioner is facilitated, and the miniaturization of the air conditioner indoor unit is facilitated.

The structure, function and implementation process of the air conditioner internal unit provided in this embodiment will be described below by way of example with reference to the accompanying drawings.

The cabinet air conditioner provided by this embodiment may be an axial flow cabinet air conditioner, may also be a cross-flow cabinet air conditioner, and may also be other types of cabinet air conditioners, and here is not limited specifically.

Fig. 1 is a partial structural schematic diagram of an air conditioner indoor unit according to an exemplary embodiment of the present invention; fig. 2 is a schematic perspective view of a maintenance plate according to an exemplary embodiment of the present invention; fig. 3 is a schematic perspective view of a second repair plate according to an exemplary embodiment of the present invention. Fig. 2 is a schematic perspective view of a maintenance plate when the maintenance plate is seen from the outside of the air conditioner indoor unit to the inside of the air conditioner indoor unit; fig. 3 is a schematic perspective view of the maintenance plate when the maintenance plate is viewed from the inside of the air conditioner indoor unit to the outside of the air conditioner indoor unit.

Referring to fig. 1 to 3, an air conditioner indoor unit provided in this embodiment includes: the device comprises a machine shell, a first fixing device and a second fixing device, wherein the machine shell is provided with a lower shell, and the lower shell is provided with a rear protection plate 3 and a maintenance plate 1 arranged on the rear protection plate 3; the maintenance plate 1 is provided with a grid hole 13 for indoor air to enter; the service panel 1 is further provided with an air cleaning device 14, and the air cleaning device 14 is used for cleaning indoor air entering from the grid holes 13.

The casing comprises an upper casing and a lower casing, wherein the upper casing is used for installing parts such as a main air duct, an indoor heat exchanger and the like, and the lower casing is used for installing parts such as a compressor, a water washing device and the like. The lower casing is generally provided with a framework, a front door panel and a rear fender 3, and the front door panel and the rear fender 3 are mounted to the framework to enclose a space for accommodating components such as a compressor, a washing device, and the like. Backplate 3 is provided with the maintenance mouth, and maintenance mouth department lid is equipped with maintenance board 1, and maintenance board 1 can be dismantled with backplate 3 and be connected.

In some examples, the service panel 1 may have a service back panel 11 and two service side panels 12, the two service side panels 12 being respectively connected to opposite sides of the service back panel 11. The maintenance side plate 12 and the maintenance rear plate 11 may be provided with a fastener so that the maintenance plate 1 may be fastened to the rear guard plate 3 through the fastener.

The maintenance back plate 11 is provided with an air inlet area, and the air inlet area is provided with grid holes 13. The grille hole 13 may include a plurality of long holes, which are arranged along the transverse extension of the air conditioner indoor unit; and the plurality of long holes are also distributed at intervals along the vertical direction of the air conditioner indoor unit. Wherein, the grill holes 13 include a plurality of rows to increase the amount of intake air. Of course, the grid holes 13 may also comprise holes of other shapes, such as circular holes, etc.

In this example, the size of the maintenance plate 1 is relatively large, and correspondingly, the maintenance opening can also be relatively large, which facilitates subsequent maintenance operations. Wherein, the shape of the maintenance plate 1 formed by the maintenance back plate 11 and the maintenance side plate 12 can be matched with the shape of the back guard plate 3.

In other examples, the service panel 1 may also comprise a service rear panel 11, the service rear panel 11 being provided with an air intake area provided with grill openings 13. The maintenance back plate 11 can be provided with a fastener, and the maintenance plate 1 can be clamped with the back guard plate 3 through the fastener.

The maintenance plate 1 is provided with an air purification device 14, and the air purification device 14 is used for purifying indoor air entering from the grid holes 13, so that the indoor air quality is further improved.

Fig. 4 is a schematic perspective view of a service plate according to another exemplary embodiment of the present invention; fig. 5 is a partially enlarged structural view of a portion a in fig. 4. Fig. 4 is a schematic perspective view of the maintenance plate when the maintenance plate is viewed from the outside of the air conditioner indoor unit to the inside of the air conditioner indoor unit.

Referring to fig. 4 and 5, the air purifying device 14 may include a HEPA (high efficiency air filter) filter, and a HEPA filter 141 may be disposed at the grille hole 13 for filtering indoor air entering from the grille hole 13 to filter particles in the air. Optionally, the HEPA filter 141 is detachably mounted on the maintenance plate 1 to facilitate subsequent replacement. HEPA filter 141 may be snapped with service plate 1 by a snap, or HEPA filter 141 may be screwed with service plate 1 by a fastener.

Wherein, the grade of HEPA filter screen 141 can set up according to actual need. The air purification apparatus 14 may include one grade of HEPA filter 141, or multiple grades of HEPA filter 141.

Fig. 6 is a rear view of a service plate provided in an exemplary embodiment of the present invention.

Referring to fig. 6, with continued reference to fig. 1 and 2, the air purifying device 14 may further include: a plasma purifier 142. The maintenance panel 1 may be provided with a mounting hole, the plasma purifier 142 may be non-detachably disposed at the mounting hole, and the plasma purifier 142 may also be detachably disposed at the mounting hole. Optionally, plasma purifier 142 can be installed in mounting hole department through the detachable connection mode such as joint or spiro union, like this, when plasma purifier 142 needs to overhaul, only need with plasma purifier 142 dismantle get off can, need not to dismantle maintenance plate 1 get off.

The plasma scrubber 142 may be located at an upper side of the intake area, that is, the plasma scrubber 142 may be located above the grill holes 13. The plasma purifier 142 can form a treated area below it, with the grid holes 13 located within the treated area. Thus, the high-energy electrons of the plasma purifier 142 can collide with molecules in the air to generate a series of elementary physical and chemical reactions, and a plurality of active free radicals and ecological oxygen are generated in the reaction process; wherein, the active free radical can effectively destroy nucleic acid and protein in various viruses and bacteria, so that the normal metabolism and biosynthesis cannot be carried out, and the death is caused; and the ecological oxygen can rapidly decompose or reduce various high molecular peculiar smell gases into low molecular harmless substances. In addition, fine particles as small as submicron can be effectively collected by the coagulation action of ions and objects in the plasma.

The air conditioner indoor unit provided by the embodiment is provided with the casing, wherein the casing is provided with the lower shell, and the lower shell is provided with the rear protection plate 3 and the maintenance plate 1 arranged on the rear protection plate 3; the maintenance plate 1 is provided with a grid hole 13 for indoor air to enter; the service panel 1 is further provided with an air cleaning device 14, and the air cleaning device 14 is used for cleaning indoor air entering from the grid holes 13. Like this, maintenance board 1 can have air inlet and air purification's function, has both richened maintenance board 1's function, can cooperate the functional improvement design of cabinet air conditioner moreover, does benefit to the spatial layout who optimizes the cabinet air conditioner, does benefit to the compact structure nature that improves the cabinet air conditioner, does benefit to the air conditioner and realizes miniaturizing.

In some embodiments, the casing is further provided with a fresh air inlet 31, and a water washing device is further disposed in the casing, and the water washing device is used for washing and purifying outdoor fresh air entering from the fresh air inlet 31. Therefore, the outdoor fresh air is introduced, so that the indoor air quality is further improved.

Exemplarily, the rear guard plate 3 is provided with a fresh air inlet 31, and the fresh air inlet 31 is connected with a fresh air pipe, and the fresh air pipe is used for communicating with the outdoor. The outdoor air entering from the fresh air duct can be conveyed to the water washing device for water washing and purification.

Optionally, the water washing device includes: a water tank and a water washing unit. The water tank is used for containing water washing liquid. The water tank is provided with an air inlet for fresh air to enter, the air inlet can be arranged on the side wall of the water tank, and the air inlet is arranged at a position which is relatively close to the side wall of the water tank, so that the washing liquid in the water tank can be prevented from flowing out. The air outlet can be arranged on the top cover of the water tank. A washing unit may be provided in the water tank, and a part of the washing unit may contact with the washing liquid in the water tank. The lower end of the water tank may be provided with a driving member. The driving piece is used for driving the water washing unit to rotate.

The washing unit can include the piece that gets rid of water, and the effect of the piece that gets rid of water is rotated under air drive motor's drive in order to adsorb water to the upper end from the lower extreme of getting rid of the piece to throw away with the water curtain form around getting rid of the piece from getting rid of, the water that finally throws away flows into the lower extreme of water tank again under the action of gravity, realizes the cyclic utilization of water. Specifically, be formed with gappedly between the lower extreme of the piece of getting rid of water and the bottom surface of water tank, the lower extreme of getting rid of water is equipped with the water inlet, and the lateral wall of getting rid of water is equipped with a plurality of apopores, and the piece of getting rid of water rotates under air drive motor's drive in order to inhale the piece inside and make water throw away from the apopore and form the water curtain with water getting rid of.

Negative pressure is formed so as to suck water in the water tank into the water throwing piece from a water inlet at the lower end of the water throwing piece; the water sucked into the water throwing piece flows to the upper end of the water throwing piece along the side wall of the water throwing piece, and the water can be thrown out from the water outlet at a high speed when the water flow rises to the height of the water outlet due to the fact that the plurality of water outlets are formed in the side wall of the water throwing piece, so that a circle of water curtain is formed in the circumferential direction of the water throwing piece. After the water curtain is thrown out by the water throwing piece, air entering from the air inlet of the water tank can be contacted with the water curtain, so that the air washing is finished.

The shell is also internally provided with an anion device 5, the anion device 5 is arranged at the upper end of the water washing device, and the anion device 5 is used for generating anions under the action of high-voltage current to be contacted with water washing liquid in the water washing device and form water ions.

The anion device 5 is provided with a high-voltage generating circuit module and an anion generator, the high-voltage generating circuit module is used for providing high-voltage current, the anion generator can generate corona under the action of the high-voltage current so as to release a large amount of electrons at high speed, the electrons are captured by oxygen molecules in the air to form anions, and the anions can be contacted with water in the water tank and form water ions.

The negative ion generator can be arranged corresponding to the water throwing piece. The anion generator can be positioned above the water throwing piece. The spraying range of the anion generator can correspond to the water curtain formed by the water throwing piece, so that more anions can be contacted with the water curtain to form more water ions.

The negative ion generator is provided with one or more probes made of metal materials or carbon elements, the probes are provided with release tips, the release tips can generate high corona under the action of direct current high voltage to release a large number of electrons, the electrons are captured by oxygen molecules in the air to form negative ions, and the negative ions can be contacted with a water curtain in the water tank to form water ions. Multiple probes may be arranged in parallel. The plurality of probes may be evenly distributed. Optionally, at least a part of the plurality of probes may be disposed directly above the water curtain thrown by the water throwing member, so as to facilitate more negative ions to contact the water curtain to form more water ions. Generally, the water thrower is located in the middle of the tank and, correspondingly, a plurality of probes can also be evenly distributed in the middle area of the top cover of the tank.

So, the anion that the anion unit produced can with the water tank in by the water curtain contact of getting rid of the water piece, the anion parcel forms the water ion in the hydrone of water curtain, the water ion contacts with the air that gets into the water tank, can deposit the particulate matter in the air of treating the purification and can dissolve the thing, can also treat the active matters such as bacterium in the air of purifying and put out a fire to can effectively improve the quality that gets into indoor air. In addition, the water ions can also adjust the concentration of positive and negative ions of the air to be purified.

Of course, the negative ions generated by the negative ion unit can also directly contact with the water washing liquid contained in the water tank to form water ions. At this moment, the inside water of being inhaled and getting rid of water spare then can have water ion, forms the water curtain that the round includes water ion in the circumference of getting rid of water spare, and this water curtain and the air contact of entering water tank can deposit the particulate matter in the air of treating the purification and can dissolve the thing, can also put out a fire to the active matters such as bacterium in the air of treating the purification to can effectively improve the quality that gets into indoor air.

In the concrete implementation, the high-voltage generating circuit module and the negative ion generator are oppositely arranged in a separated mode. The high-voltage generating circuit module is electrically connected with the negative ion generator through a conducting wire. The high-voltage generating circuit module can be arranged in an air outlet duct connected to an air outlet of the water tank, and the high-voltage generating circuit module can be arranged at an air inlet end of the air outlet duct or in the middle of the air outlet duct relatively. Anion generator sets up in the top cap of water tank to make more anions can form water ion with the water contact in the water tank, do benefit to the improvement to anion's utilization ratio. Or the high-voltage generating circuit module and the negative ion generator are mounted on the top cover of the water tank.

At least part of the grid holes 13 are relatively positioned above the water washing device, and at least part of the negative ion generator of the negative ion device 5 is arranged corresponding to the grid holes 13.

In this example, since the indoor air entering from the grille holes 13 of the service plate 1 has been subjected to the purification process by the air purification device 14 at the service plate 1, the indoor air entering from the grille holes 13 of the service plate 1 can directly enter the main duct and be delivered to the indoor. Of course, the room air entering from the grille opening 13 of the service panel 1 can also be conducted to the water washing apparatus through a pipe for further purification treatment.

The embodiment also provides an air conditioner, which comprises an air conditioner external unit and an air conditioner internal unit which are connected. An outdoor unit of an air conditioner generally includes an outdoor heat exchanger, and an indoor unit of the air conditioner generally includes an indoor heat exchanger, a throttle device, and a compressor. When the air conditioner performs refrigeration work, the compressor compresses a gaseous refrigerant into a high-temperature high-pressure gaseous state, and sends the gaseous refrigerant to the outdoor heat exchanger for cooling, the high-temperature high-pressure gaseous refrigerant is cooled and then becomes a medium-temperature high-pressure liquid refrigerant, the medium-temperature high-pressure liquid refrigerant is throttled and reduced by the throttling device and becomes a low-temperature low-pressure gas-liquid mixture, and the low-temperature low-pressure gas-liquid mixture absorbs heat in air by the indoor heat exchanger and is vaporized into a gaseous state, so that the refrigeration effect is achieved; the gaseous refrigerant returns to the compressor to continue to be compressed, and the circulation is continued to carry out refrigeration. The air conditioner indoor unit comprises a cabinet air conditioner and an air conditioner on-hook, and the cabinet air conditioner is widely applied due to the facts that wind power is strong, installation is convenient and fast, and the like.

The structure, function, and implementation process of the air conditioner internal unit may be the same as those of the air conditioner internal unit in any of the foregoing examples, and details are not repeated here.

It should be noted that the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description above, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims (10)

1. An air conditioner indoor unit, characterized by comprising: a housing having a lower shell with a rear fender and a service plate mounted to the rear fender; the maintenance plate is provided with a grating hole for indoor air to enter; the maintenance board is further provided with an air purification device, and the air purification device is used for purifying indoor air entering from the grid hole.

2. An indoor unit of an air conditioner according to claim 1, wherein the service panel includes: the maintenance side plates are respectively connected to two opposite sides of the maintenance back plate; the maintenance back plate is provided with an air inlet area, and the air inlet area is provided with the grid holes.

3. An indoor unit according to claim 2, wherein the air cleaning device comprises a plasma cleaner installed on an upper side of the air intake area such that a delivery grid aperture is located in a treated area of the plasma cleaner.

4. An indoor unit according to claim 2, wherein the air purifying device includes a HEPA filter provided at the grille hole to filter the indoor air entering from the grille hole.

5. The indoor unit of claim 2, wherein the grid holes comprise a plurality of elongated holes, and the elongated holes are arranged along the transverse extension of the indoor unit; the plurality of long holes are also distributed at intervals along the vertical direction of the air conditioner indoor unit.

6. The indoor unit of an air conditioner as claimed in claim 1, wherein the casing is further provided with a fresh air inlet, and the casing is further provided with a water washing device for washing and purifying outdoor fresh air entering from the fresh air inlet.

7. The indoor unit of an air conditioner as claimed in claim 6, wherein the rear guard plate is provided with the fresh air inlet, the fresh air inlet is connected with a fresh air pipe, and the fresh air pipe is used for being communicated with the outside.

8. The indoor unit of an air conditioner as claimed in claim 6, wherein a negative ion device is further arranged in the casing and is arranged at the upper end of the water washing device, and negative ions generated by the negative ion device under the action of high-voltage current can contact with water washing liquid in the water washing device to form water ions.

9. The indoor unit of claim 8, wherein at least a portion of the grid holes are located above the water washing device, and at least a portion of the anion generator of the anion device is located corresponding to the grid holes.

10. An air conditioner, comprising: an interconnected air conditioner outdoor unit and an air conditioner indoor unit as claimed in any one of claims 1 to 9.

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