CN106545924B

CN106545924B - Air conditioner indoor unit and air conditioner

Info

Publication number: CN106545924B
Application number: CN201611075261.5A
Authority: CN
Inventors: 汪先送; 陈新厂
Original assignee: Midea Group Co Ltd; Midea Group Wuhan Refrigeration Equipment Co Ltd
Current assignee: Midea Group Co Ltd; Midea Group Wuhan Refrigeration Equipment Co Ltd
Priority date: 2016-11-29
Filing date: 2016-11-29
Publication date: 2022-07-26
Anticipated expiration: 2036-11-29
Also published as: CN106545924A

Abstract

The invention discloses an air conditioner indoor unit and an air conditioner, wherein the air conditioner indoor unit comprises: the top of the face frame is provided with an air inlet, and the air inlet is provided with a front wall surface, a rear wall surface and two opposite side wall surfaces positioned between the front wall surface and the rear wall surface; at least one clamping groove is formed in the front wall surface; the side wall surface is provided with a sliding chute, and a notch is formed at the position of the sliding chute, which is adjacent to the front wall surface; a screen assembly, comprising: the air inlet grille is arranged at the air inlet; the front side edge of the air inlet grille is provided with a clamping protrusion matched with the clamping groove; two opposite corners of the air inlet grille, which are adjacent to the rear wall surface, are provided with sliding shafts which protrude towards the adjacent side wall surface, and the sliding shafts are in rotatable fit with the sliding grooves; the filter screen is arranged on the air inlet grille; the elastic piece is arranged between the rear side edge of the air inlet grille and the rear wall surface of the air inlet; when the clamping protrusion of the air inlet grille is clamped into the clamping groove, the elastic piece is in a compressed state. The filter screen of the indoor unit of the air conditioner has fewer assembling and disassembling operation steps, is easy to operate, and is greatly convenient to use.

Description

Air conditioner indoor unit and air conditioner

Technical Field

The invention relates to the technical field of air conditioners, in particular to an air conditioner indoor unit and an air conditioner.

Background

The existing air-conditioning indoor unit generally adopts an air duct structure with upper air inlet and lower air outlet, and a filter screen semi-surrounding heat exchanger is used for filtering air before heat exchange. Specifically, the top of a face frame of the indoor unit of the air conditioner is provided with an air inlet grille, the front part of the face frame is provided with a mounting opening, and a panel covers the mounting opening; one part of the filter screen is inserted between the air inlet grille and the top of the heat exchanger from the mounting hole, the other part of the filter screen covers the front part of the heat exchanger and is positioned on the inner side of the panel, and the lower part of the filter screen is clamped with the lower edge of the mounting hole. When the filter screen is disassembled and assembled, the filter screen is required to be bent to realize clamping, and the panel connected with the surface frame buckle is required to be opened, so that the disassembling and assembling process is very inconvenient.

Disclosure of Invention

The invention mainly aims to provide an air conditioner indoor unit, and aims to solve the technical problem that a filter screen of an existing air conditioner indoor unit is inconvenient to disassemble and assemble.

In order to achieve the above object, the present invention provides an indoor unit of an air conditioner, comprising:

the air inlet is provided with a front wall surface, a rear wall surface and two opposite side wall surfaces positioned between the front wall surface and the rear wall surface; the front wall surface is provided with at least one clamping groove; the side wall surface is provided with a sliding groove, and a notch is formed at the position of the sliding groove, which is adjacent to the front wall surface;

the filter screen component comprises an air inlet grille and a filter screen; wherein the air inlet grille is arranged at the air inlet; a clamping protrusion matched with the clamping groove is arranged at the front side edge of the air inlet grille; two opposite corners of the air inlet grille, which are adjacent to the rear wall surface, are provided with sliding shafts which protrude towards the adjacent side wall surface, and the sliding shafts are in rotatable fit with the sliding grooves; the filter screen is arranged on the air inlet grille; and

the elastic piece is arranged between the rear side edge of the air inlet grille and the rear wall surface of the air inlet; when the clamping protrusion of the air inlet grille is clamped into the clamping groove, the elastic piece is in a compression state.

Preferably, the face frame includes a front frame plate, and a front wall face of the air inlet is formed on an inner side face of the front frame plate;

the intersection line of the inner side surface and the top surface of the front frame plate is provided with a guide groove adjacent to the clamping groove, and the first groove wall of the guide groove positioned at the bottom inclines towards the inner side of the front frame plate from top to bottom.

Preferably, two of the guide grooves are arranged between the two second groove wall surfaces on the two sides in a gradually expanding manner along the directions from the right back to the front and from the bottom to the top.

Preferably, the face frame comprises a rear frame plate opposite to the front frame plate, and a rear wall surface of the air inlet is formed on an inner side surface of the front frame plate;

the inner side surface of the rear frame plate is convexly provided with a sleeve, one end of the elastic piece is embedded in the sleeve, and the other end of the elastic piece faces the air inlet grille.

Preferably, the sleeve and the elastic part are provided with a plurality of pairs and arranged at intervals along the left and right direction; the projection of each clamping groove on the rear frame plate is positioned between two adjacent sleeves.

Preferably, the inner side surface of the rear frame plate is convexly provided with a rear supporting plate below the sleeve, and the rear supporting plate extends and is connected with two opposite side wall surfaces along the left-right direction.

Preferably, the top surface of the rear support plate is provided with a clearance groove, and the clearance groove is provided with a guide surface which is inclined downwards along the direction from front to back and a limit surface which extends upwards along the direction from front to back;

the limiting surface is used for limiting the air inlet grille at a preset distance after the air inlet grille retreats backwards until the clamping protrusion is separated from the clamping groove.

Preferably, the chute comprises an inlet section, a transition section and an assembly section which are connected in sequence, the notch is formed in the inlet section, and the assembly section is adjacent to the rear wall surface;

the groove width of the inlet section is larger than the outer diameter of the sliding shaft, and the groove width of the assembling section is matched with the outer diameter of the sliding shaft.

Preferably, the side wall surface is convexly provided with a side support plate, and the upper baffle plate is opposite to the side support plate and is positioned on the side support plate;

the lateral supporting plate extends and is connected with the front wall surface and the rear wall surface along the front-rear direction, and the lateral supporting plate and the upper baffle plate are enclosed to form the sliding groove.

The invention also provides an air conditioner, which comprises an air conditioner indoor unit, wherein the air conditioner indoor unit comprises:

the air inlet is provided with a front wall surface, a rear wall surface and two opposite side wall surfaces positioned between the front wall surface and the rear wall surface;

at least one clamping groove is formed in the front wall surface; a sliding groove is formed in the side wall surface, and a notch is formed in the sliding groove and is adjacent to the front wall surface;

a screen assembly comprising:

-an air intake grille mounted at the air intake; a clamping protrusion matched with the clamping groove is arranged at the front side edge of the air inlet grille; two opposite corners of the air inlet grille, which are adjacent to the rear wall surface, are provided with sliding shafts which protrude towards the adjacent side wall surface, and the sliding shafts are in rotatable fit with the sliding grooves; and

-a filter screen arranged on the air intake grille;

According to the air conditioner indoor unit, the filter screen is arranged on the air inlet grille, the filter screen component can be integrally arranged in the air inlet of the face frame or detached from the air inlet, when the air conditioner indoor unit is assembled, the sliding shafts at the left end and the right end of the air inlet grille are clamped into the sliding grooves from the groove openings, the air inlet grille is pushed backwards to be abutted against the elastic piece at the rear end of the air inlet grille under the guiding of the sliding grooves, the elastic piece is compressed and presses the front end of the air inlet grille downwards when the front end of the clamping protrusion of the air inlet grille is flush with the front wall surface of the air inlet, and the clamping protrusion is clamped into the clamping groove along the trend and keeps a clamping state under the elastic force of the elastic piece; the disassembly process is exactly the reverse of the assembly process. The filter screen of the indoor unit of the air conditioner has fewer assembling and disassembling operation steps, is easy to operate and is greatly convenient to use.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic structural view of an indoor unit of an air conditioner according to an embodiment of the present invention;

FIG. 2 is a schematic view of the structure of the air intake grille of FIG. 1;

FIG. 3 is a schematic perspective view of the bezel of FIG. 1;

FIG. 4 is an enlarged view of a portion of FIG. 3 at A;

FIG. 5 is a schematic view of the filter screen assembly of FIG. 1 engaged with a face frame;

FIG. 6 is a schematic front view of the structure of FIG. 5;

FIG. 7 is a schematic cross-sectional view taken along line VII-VII of FIG. 6;

FIG. 8 is an enlarged view of a portion of FIG. 7 at B;

FIG. 9 is a schematic cross-sectional view of the air intake grille of the structure of FIG. 5 after exiting the front frame air intake;

FIG. 10 is an enlarged view of a portion of FIG. 9 at C;

FIG. 11 is a schematic view of a portion of the panel of FIG. 1 at another angle;

FIG. 12 is a schematic cross-sectional view taken at D in FIG. 11;

FIG. 13 is a top view of the bezel of FIG. 1;

FIG. 14 is a schematic sectional view taken along line XIV-XIV in FIG. 13;

fig. 15 is a schematic cross-sectional view at E in fig. 13.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)	Reference numerals	Name(s)
						1	Face frame	133	Rear support plate	17	Notch opening
11	Air inlet	134	Keep away empty groove	2	Filter screen assembly
						12	Front frame plate	134a	Guide surface		21	Air-inlet grille
121	Front wall	134b	Limiting surface	211	Clamping projection
						122	Clamping groove	14	Side wall surface	212	Sliding shaft
123	Guide groove	141	Side supporting plate	213	Limiting convex strip
						124	First groove wall surface	142	Upper baffle plate	3	Elastic piece
125	Second groove wall surface	16	Sliding chute	4	Panel board
						13	Back frame plate	161	Inlet section	5	Air deflector
131	Rear wall surface	162	Transition section
						132	Sleeve barrel	163	Assembly section

The implementation, functional features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, 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 creative effort, shall fall within the protection scope of the present invention.

It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is 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. In addition, technical solutions between the embodiments may be combined with each other, but must be based on the realization of the technical solutions by a person skilled in the art, and when the technical solutions are contradictory to each other or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

The invention provides an indoor unit of an air conditioner.

In an embodiment of the present invention, as shown in fig. 1 to 5, the indoor unit of an air conditioner includes:

the air conditioner comprises a face frame 1, wherein the top of the face frame 1 is provided with an air inlet 11, and the air inlet 11 is provided with a front wall surface 121, a rear wall surface 131 and two opposite side wall surfaces 14 positioned between the front wall surface 121 and the rear wall surface 131;

at least one clamping groove 122 is formed in the front wall surface 121; a sliding groove 16 is arranged at the side wall surface 14, and a notch 17 is formed at the position, adjacent to the front wall surface 121, of the sliding groove 16;

screen assembly 2 includes:

an air intake grill 21 installed at the air intake opening 11; a clamping protrusion matched with the clamping groove 122 is arranged at the front side edge of the air inlet grille 21; the two opposite corners of the air-inlet grille 21 adjacent to the rear wall 131 are provided with adjacent corners

A slide shaft protruding from the side wall surface 14, the slide shaft being rotatably engaged with the slide groove 16; and

a filter screen (not shown) arranged on the air intake grille 21;

the elastic element 3 is arranged between the rear side edge of the air inlet grille 21 and the rear wall surface 131 of the air inlet 11; when the locking protrusion of the air inlet grille 21 is locked into the locking groove 122, the elastic member 3 is in a compressed state.

In the embodiment, the face frame 1 covers the front side of the heat exchanger of the indoor unit of the air conditioner and forms a part of the air duct. The face frame 1 is at least provided with an air inlet 11.

The filter screen and the air inlet grille 21 can be arranged integrally or can be connected in a detachable mode. When the integrated filter screen is arranged, the filter screen can be cleaned in an integral cleaning mode. It will be appreciated that the axes of the two sliding shafts are aligned in order to ensure that the grille 21 can rotate.

In the existing air-conditioning indoor unit, an air outlet is further arranged at the lower end of a face frame 1, a mounting opening is arranged at the front part of the face frame 1, a panel 4 is attached to the front side face of the face frame 1 and covers the mounting opening, and an air deflector 5 is arranged at the air outlet and used for adjusting the wind direction. When the filter screen is assembled and disassembled in the existing air-conditioning indoor unit, the panel 4 needs to be opened firstly, and then the filter screen is bent to be clamped in or taken out; and because a part of the panel 4 is pivoted with the face frame 1, and the other part of the panel 4 is connected with the face frame 1 in a buckling way, the large deformation resistance of the buckle is required to be overcome no matter the panel 4 is opened or closed, and the buckle is easy to damage due to improper force.

Referring to fig. 7 and 9 together, in the air-conditioning indoor unit of the present invention, the filter screen is installed on the air inlet grille 21, the filter screen assembly 2 can be integrally installed in the air inlet 11 of the face frame 1 or detached from the air inlet 11, when assembling, the sliding shafts at the left and right ends of the air inlet grille 21 are inserted into the sliding grooves 16 from the notches 17, the air inlet grille 21 is pushed backward to the rear end thereof to abut against the elastic member 3 under the guiding of the sliding grooves 16, the elastic member 3 is compressed and presses down the front end of the air inlet grille 21 when the front end of the latch of the air inlet grille 21 is flush with the front wall 121 of the air inlet 11, and the latch is inserted into the latch groove 122 under the elastic force of the elastic member 3 and keeps the latched state; the disassembly process is exactly the reverse of the assembly process. The filter screen of the indoor unit of the air conditioner has fewer assembling and disassembling operation steps, is easy to operate and is greatly convenient to use.

Further, referring to fig. 6 to 8, and fig. 11 and 12, in an embodiment, the face frame 1 includes a front frame plate 12, and a front wall 121 of the air inlet 11 is formed on an inner side surface of the front frame plate 12; a guide groove 123 adjacent to the locking groove 122 is formed at an intersection of the inner side surface and the top surface of the front frame plate 12, and a first groove wall surface 124 of the guide groove 123 located at the bottom is inclined from top to bottom toward the inner side of the front frame plate 12.

In this embodiment, when the air-inlet grille 21 is disassembled, the latch at the front end of the air-inlet grille 21 can automatically slide out of the guide groove 123 when it is abutted against the first groove wall surface 124 under the elastic force of the elastic member 3; when the grill 21 is assembled, the front end of the grill 21 is pressed downward, and the engaging protrusion slides into the engaging groove 122 below the guide groove 123 more easily under the guiding action of the first groove wall surface 124.

Further, referring to fig. 11 to 13 and fig. 15, in an embodiment, two positions of the guide groove 123 are disposed between the two second groove wall surfaces 125 on two sides and are gradually enlarged along the directions from the back to the front and from the bottom to the top.

In this embodiment, in the process of the protrusion sliding in and out of the guide groove 123, the two second groove wall surfaces 125 can both play a role in guiding, and even if the protrusion does not align well with the guide groove 123, the protrusion can be smoothly clamped into the guide groove 123, that is, the two second groove wall surfaces 125 can play a role in correcting the protrusion.

Preferably, a position adjacent to the top surface of the front end surface of the air inlet grille 21 is provided with a limit convex strip 213, and the clamping convex strip and the limit convex strip 213 are arranged at intervals; when the engaging protrusion of the air-inlet grille 21 is engaged with the engaging groove 122, the limit protrusion 213 abuts against the top surface of the front bezel 12. Thus, the air inlet grille 21 can be limited. Further, the top surface of the front frame plate 12 may be set lower than the top surfaces of the two sides of the face frame 1, and when the limit protruding strip 213 abuts against the top surface of the front frame plate 12, the top surface of the limit protruding strip 213 is flush with the top surfaces of the two sides of the face frame 1, so that not only the edge sealing effect is better achieved, but also the appearance of the indoor unit of the air conditioner is more beautiful.

Further, referring to fig. 3 to 7 and fig. 9 to 11, in an embodiment, the face frame 1 includes a rear frame plate 13 opposite to the front frame plate 12, and a rear wall 131 of the air inlet 11 is formed on an inner side surface of the front frame plate 12; a sleeve 132 is convexly arranged on the inner side surface of the back frame plate 13, one end of the elastic element 3 is embedded in the sleeve 132, and the other end faces the air inlet grille 21.

In this embodiment, the elastic member 3 is disposed in the sleeve 132, and is not easily deflected under the guiding and limiting effects of the inner wall surface of the sleeve 132 during compression, so as to generate a stable elastic force. Preferably, the rear end of the elastic member 3 is fixedly coupled to the sleeve 132. Preferably, the elastic member 3 is a compression spring.

Further, the sleeve 132 and the elastic member 3 are provided in multiple pairs and spaced apart from each other in the left-right direction; the projection of each slot 122 on the back frame plate 13 is located between two adjacent sleeves 132.

In the present embodiment, the elastic member 3 is provided in plural, and the elastic force acting on the rear end of the air intake grille 21 is similar to the distributed force, so that the elastic force received by each protrusion is more balanced. For example, the extension line of the resultant force of the elastic forces of the two adjacent elastic members 3 passes through the corresponding snap protrusions, and the bending moment is zero, so that the air-inlet grille 21 is pushed more smoothly.

Further, a rear support plate 133 is provided on the inner surface of the rear frame plate 13 below the sleeve 132 in a protruding manner, and the rear support plate 133 extends in the left-right direction to connect the two opposite side wall surfaces 14.

In this embodiment, by providing the rear supporting plate 133, when the air inlet grille 21 is completely inserted into the air inlet 11, the rear supporting plate 133 can block the gap between the air inlet grille 21 and the rear frame plate 13, so as to prevent the air from directly entering the air duct for heat exchange without being filtered. While the rear support plate 133 may support the grill 21 and the elastic member 3.

Further, referring to fig. 4 and 10 again, in an embodiment, the back supporting board 133 is provided with a clearance groove 134 on the top surface thereof, the clearance groove 134 has a guiding surface 134a inclined downward from the front to the back direction, and a limiting surface 134b extending upward from the front to the back direction; the position-limiting surface 134b is used for limiting the position of the air-inlet grille 21 at a preset distance after the air-inlet grille 21 retreats backwards until the clamping protrusion is separated from the clamping groove 122.

In this embodiment, when the air-inlet grille 21 is disassembled, the air-inlet grille 21 needs to rotate relative to the sliding shaft in the process that the locking protrusion is disengaged from the locking slot 122, and at this time, if the rear end of the air-inlet grille 21 is not disengaged or staggered with respect to the rear support plate 133, the clearance slot 134 can prevent the interference between the rear end of the air-inlet grille 21 and the rear support plate 133; when assembling air-inlet grille 21, air-inlet grille 21 moves to the direction that is close to back deckle board 13 under the guiding action of spout 16, through

spacing face

134b and 21 rear end butt of air-inlet grille, can prevent that air-inlet grille 21 from excessively extrudeing elastic component 3, can remind the user simultaneously, should press the front end of air-inlet grille 21 downwards this moment to make the protruding card of card go into draw-in groove 122 and accomplish the assembly.

Further, referring to fig. 4 and 14 again, in one embodiment, the chute 16 includes an inlet section 161, a transition section 162 and an assembling section 163 connected in sequence, the slot 17 is formed in the inlet section 161, and the assembling section 163 is adjacent to the rear wall 131; the groove width of the inlet section 161 is larger than the outer diameter of the slide shaft, and the groove width of the fitting section 163 is adapted to the outer diameter of the slide shaft.

In the present embodiment, the groove width of the inlet section 161 is larger than the outer diameter of the sliding shaft, so that the sliding shaft can be conveniently clamped into the sliding chute 16, and it can be understood that the groove width of the transition section 162 gradually decreases from front to back to realize smooth transition. The groove width of the mounting section 163 is adapted to the outer diameter of the sliding shaft, so that the air inlet grille 21 is prevented from shaking or loosening during rotation.

Further, a side support plate 141 convexly provided on the side wall surface 14, and an upper baffle 142 opposite to the side support plate 141 and located above the side support plate 141;

the side support plate 141 extends in the front-rear direction to connect the front wall surface 121 and the rear wall surface 131, and the side support plate 141 and the upper baffle 142 enclose a sliding groove 16.

In this embodiment, similarly, by providing the side supporting plate 141, when the air-inlet grille 21 is completely inserted into the air inlet 11, the side supporting plate 141 can block the gap between the air-inlet grille 21 and the side wall surface 14, so as to prevent the air from directly entering the air duct for heat exchange without being filtered. While the side support plate 141 can support and limit the air inlet grille 21. In addition, the wall body forming the sliding chute 16 is plate-shaped, so that the injection molding and integral molding process is easier to adopt.

The present invention further provides an air conditioner, including an air conditioner indoor unit, where the specific structure of the air conditioner indoor unit refers to the above-mentioned embodiments, and since the air conditioner employs all technical solutions of all the above-mentioned embodiments, the air conditioner at least has all beneficial effects brought by the technical solutions of the above-mentioned embodiments, and details are not repeated herein.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all equivalent structural changes made by using the contents of the present specification and the drawings, or any other related technical fields, which are directly or indirectly applied to the present invention, are included in the scope of the present invention.

Claims

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

the filter screen component comprises an air inlet grille and a filter screen; the air inlet grille is arranged at the air inlet; a clamping protrusion matched with the clamping groove is arranged at the front side edge of the air inlet grille; two opposite corners of the air inlet grille, which are adjacent to the rear wall surface, are provided with sliding shafts which protrude towards the adjacent side wall surface, and the sliding shafts are in rotatable fit with the sliding grooves; the filter screen is arranged on the air inlet grille; and

the elastic piece is arranged between the rear side edge of the air inlet grille and the rear wall surface of the air inlet; when the clamping protrusion of the air inlet grille is clamped into the clamping groove, the elastic piece is in a compressed state;

when the clamping protrusion is separated from the clamping groove, the air inlet grille can rotate upwards relative to the face frame by taking the sliding shaft as a center;

the face frame comprises a front frame plate and a rear frame plate opposite to the front frame plate, a sleeve is convexly arranged on the inner side surface of the rear frame plate, one end of the elastic piece is embedded in the sleeve, and the other end of the elastic piece faces the air inlet grille; a rear supporting plate is convexly arranged on the inner side surface of the rear frame plate below the sleeve, a clearance groove is formed in the top surface of the rear supporting plate, and the clearance groove is provided with a guide surface which is inclined downwards along the direction from front to back;

the clearance groove is provided with a limiting surface which extends upwards along the direction from front to back; the limiting surface is used for limiting the air inlet grille at a preset distance after the air inlet grille retreats backwards to the clamping protrusion is separated from the clamping groove.

2. The indoor unit of an air conditioner according to claim 1, wherein a front wall surface of the air inlet is formed on an inner side surface of the front frame plate;

3. The indoor unit of claim 2, wherein the two second groove walls of the guide groove are disposed to be gradually enlarged in a direction from the rear to the front and from the bottom to the top.

4. An indoor unit of an air conditioner according to claim 2 or 3, wherein a rear wall surface of the air inlet is formed on an inner side surface of the rear frame plate.

5. An indoor unit of an air conditioner according to claim 4, wherein the sleeve and the elastic member are provided in plural pairs and are spaced apart in the left-right direction; the projection of each clamping groove on the rear frame plate is positioned between two adjacent sleeves.

6. An indoor unit of an air conditioner according to claim 4, wherein the rear supporting plate extends in a left-right direction to connect two opposite side wall surfaces.

7. The indoor unit of an air conditioner according to claim 1, wherein the chute includes an inlet section, a transition section, and an assembling section connected in sequence, the notch is formed at the inlet section, and the assembling section is adjacent to the rear wall surface;

8. An indoor unit of an air conditioner according to claim 7, wherein the side wall is provided with a side support plate protruded therefrom, and an upper baffle plate opposed to and positioned above the side support plate;

9. An air conditioner characterized by comprising an indoor unit of an air conditioner according to any one of claims 1 to 8.