Indoor unit of air conditioner

Abstract

The air conditioner indoor unit is thin and attractive in front plate, convenient to open and close and smooth in overall appearance. The air conditioner indoor unit comprises a shell, the shell comprises a bottom frame and a front plate covering the bottom frame from the front side, the front plate is opened and closed relative to the bottom frame to expose or shield components in the bottom frame, and bending parts bent towards bottom frame side plates on the two sides of the bottom frame are arranged on the two sides of a front plate body of the front plate. A main body of the bending part is in a gradually-expanding shape with the width increasing downwards, the bottom frame side plate is provided with a first protruding side wall, the first side wall is provided with a first part and a second part, the first part is attached to the side wall of the bending part of the bending part, and the second part is bent from the lower end of the first part to the direction away from the bending part; the outer end of the first side wall is flush with the outer surface of the side wall of the bent part, the bottom of the side wall of the bent part is in a bent shape far away from the first side wall, and the bottom frame side plate between the bottom of the side wall of the bent part and the second part forms an opening and closing part.

Description

TECHNICAL FIELD

[0001] The utility model relates to air conditioner indoor unit. BACKGROUND

[0002] It is known that an air conditioner indoor unit comprises a housing, the housing comprises a bottom frame and a front plate which is covered on the bottom frame from the front side, the front plate exposes or shields the components in the bottom frame by opening and closing relative to the bottom frame, and a bending part of a side plate which bends towards the two sides of the bottom frame is arranged on both sides of the front plate main body. In the past, the handle for opening the front plate is mostly a recessed structure arranged on the side plate in the middle of the adhesion of the bending part and the side plate, which is not simple enough in the overall appearance, and can destroy the appearance smoothness of the side plate and the bending part in the closed state. In addition, the arrangement in the middle increases the height of the hand of the operator during operation, and the operator or user may need to stand higher, stretch longer, or use other tools to open the front plate for subsequent operation, which also causes safety hazards during operation. SUMMARY

[0003] The utility model is completed in view of the above problem, and the purpose is to provide a front plate thin and beautiful air conditioner indoor unit which is easy to open and close and has a smooth overall appearance.

[0004] In order to achieve the above purpose, the utility model provides an air conditioner indoor unit, which comprises a housing, the housing comprises a bottom frame and a front plate which is covered on the bottom frame from the front side, the front plate exposes or shields the components in the bottom frame by opening and closing relative to the bottom frame, and a bending part of a side plate which bends towards the two sides of the bottom frame is arranged on both sides of the front plate main body, the main body of the bending part is gradually expanded with the width increasing downwards, the bottom frame side plate is provided with a convex first side wall, the first side wall has a first part and a second part, the first part is attached to the bending part side wall, the second part is bent from the lower end of the first part to the direction away from the bending part, the outer end of the first side wall is flush with the outer surface of the bending part side wall, the bottom of the bending part side wall has a curved shape away from the first side wall, and the bottom frame side plate between the bottom of the bending part side wall and the second part constitutes an opening and closing part.

[0005] According to the indoor air conditioner of the utility model, the first side wall of the bottom frame side plate is provided with a protrusion, the first part of the first side wall is attached to the bending part side wall, the second part is bent from the lower end of the first part in a direction away from the bending part, the outer end of the first side wall is flush with the outer surface of the bending part side wall, the bottom of the bending part side wall has a curved shape away from the first side wall, and the bottom frame side plate between the bottom of the bending part side wall and the second part forms an opening and closing part, so that the opening and closing part of the front plate has both aesthetic and functional properties; the bending part and the bottom frame side plate are arranged in alignment, and in the closed state of the front plate, the side surface of the shell is in the same plane, improving the aesthetic property; the main body of the bending part is gradually expanded, which makes the appearance of the front plate more slender, ensures the strength during opening and closing, and provides an indoor air conditioner with a thin and beautiful front plate, easy opening and closing, and a smooth overall appearance.

[0006] In addition, in the indoor air conditioner of the utility model, the bottom of the bending part side wall can be outwardly protruding in a circular arc shape and protrude to a position lower than the front plate main body, and the second part can be a convex circular arc shape, and when the curvature radius of the circular arc-shaped bottom of the bending part side wall is R1 and the curvature radius of the second part is R2, R2>R1. By protruding the bottom of the bending part side wall outwardly to a position lower than the front plate main body, the area of the opening and closing part can be reduced, thereby improving the overall aesthetic property of the indoor air conditioner, and by making the curvature radius of the circular arc-shaped second part greater than the curvature radius of the circular arc-shaped bottom of the bending part side wall, the front plate can be easily opened and the safety when the finger is in contact can be ensured.

[0007] In addition, in the indoor air conditioner of the utility model, the bottom of the bending part side wall can be inwardly recessed in a circular arc shape, and the second part can be a circular arc shape recessed to the side opposite to the bending part side. According to the above structure, a larger area can be avoided for finger operation.

[0008] In addition, in the indoor air conditioner of the utility model, the bottom frame can be provided with an air outlet, the air outlet can be located on the lower side of the front plate main body, a first air baffle and a second air baffle located at a position forward of the first air baffle can be arranged at the air outlet, the first air baffle and the second air baffle can form a first angle to form an attached wall air flow along the lower surface of the second air baffle for air blown out of the air outlet, and the rear end of the bending part can be located at a position forward of the rear end of the second air baffle in the closed state when viewed from the side. According to the above structure, the width of the bending part in the front-rear direction is not too large while realizing the Coanda effect, and the aesthetic property is further improved.

[0009] In addition, in the air conditioner indoor unit, the bending portion side wall and the first side wall can have a separation starting position.

[0010] In addition, in the air conditioner indoor unit, the bending portion side wall and the first side wall can have a separation starting position.

[0011] In addition, in the air conditioner indoor unit, the bending portion side wall and the first side wall can have a separation starting position.

[0012] In addition, in the air conditioner indoor unit, the bending portion side wall and the first side wall can have a separation starting position.

[0013] In addition, in the air conditioner indoor unit, the bending portion side wall and the first side wall can have a separation starting position. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is a perspective view of the air conditioner indoor unit according to the first embodiment of the present application, showing a state in which the front plate is closed and the air deflector is closed.

[0015] Figure 2 This is a side view of the indoor unit of an air conditioner according to Embodiment 1 of the present invention, showing the state with the front panel closed and the air guide plate closed.

[0016] Figure 3 This is a perspective view of the indoor unit of an air conditioner according to Embodiment 1 of the present invention, showing the state with the front panel closed and the air guide plate open.

[0017] Figure 4 This is a side view of the indoor unit of an air conditioner according to Embodiment 1 of the present invention, showing the state with the front panel closed and the air guide plate open.

[0018] Figure 5 This is a front view of the indoor unit of the air conditioner according to Embodiment 1 of the present invention, showing the state with the front panel closed and the air guide plate open.

[0019] Figure 6 yes Figure 5 BB enlarged sectional view.

[0020] Figure 7 This is a perspective view of the indoor unit of an air conditioner according to Embodiment 1 of the present invention, showing the front panel open.

[0021] Figure 8 This is a side view of the indoor unit of the air conditioner according to Embodiment 1 of the present invention, showing the front panel open.

[0022] Figure 9 This is a perspective view of the indoor unit of an air conditioner according to Embodiment 1 of the present invention, showing the front panel open.

[0023] Figure 10 This is a perspective view schematically showing the general structure of a modified indoor air conditioning unit.

[0024] (Symbol Explanation)

[0025] 1.1A housing

[0026] 2 front panel

[0027] 10 bottom frame

[0028] 11 Bottom Frame Side Panels

[0029] 20. 20A front panel body

[0030] 21 Second connecting part

[0031] 23 Attached wall panels

[0032] 30, 30A Bending Section

[0033] 31, 31A Bending Section Side Wall

[0034] 40 opening and closing part

[0035] 100, 100A air conditioner indoor unit

[0036] 111 first side wall

[0037] 111a first portion

[0038] 111b second portion

[0039] 121 first connecting part

[0040] CF air outlet

[0041] DF1 first deflector

[0042] DF2 second deflector

[0043] DF3 third deflector

[0044] M separation start position DETAILED DESCRIPTION

[0045] Hereinafter, the technical solutions of the embodiments and modified examples of the present application will be described with reference to the accompanying drawings. In addition, the scope of the present application is not limited to the following embodiments and modified examples, and can be arbitrarily changed within the scope of the technical idea of the present application. Furthermore, in the following drawings, in order to facilitate understanding of each structure, the actual configuration can be different from the scale, quantity, etc. in each structure. Furthermore, in the following description, up, down, left, right, front, rear, etc. indicate the directions as shown in Figures 1-4 and Figures 6-10 .

[0046] Embodiment 1

[0047] The air conditioner indoor unit 100 related to Embodiment 1 will be described below. Figure 1 is a perspective view showing the air conditioner indoor unit 100 of Embodiment 1 of the present application, showing a state in which the front panel 2 is closed and the deflector is closed. Figure 2 is a side view showing the air conditioner indoor unit 100, showing a state in which the front panel 2 is closed and the deflector is closed. Figure 3 is a perspective view showing the air conditioner indoor unit 100, showing a state in which the front panel 2 is closed and the deflector is opened. Figure 4 is a side view showing the air conditioner indoor unit 100, showing a state in which the front panel 2 is closed and the deflector is opened. Figure 5 is a front view showing the air conditioner indoor unit 100, showing a state in which the front panel 2 is closed and the deflector is opened. Figure 6 is Figure 5 a B-B enlarged sectional view of Figure 7 , Figure 9is a perspective view showing the air-conditioner indoor unit 100, showing a state in which the front panel 2 is opened. Figure 8 is a side view showing the air-conditioner indoor unit 100, showing a state in which the front panel 2 is opened.

[0048] (Overall structure of air-conditioner indoor unit)

[0049] In the present embodiment, as shown in Figure 1 , the air-conditioner indoor unit 100 includes a housing 1. The housing 1 includes a bottom frame 10 and a front panel 2 which is attached to the bottom frame 10 from the front side. The bottom frame 10 houses therein components such as a heat exchanger, a fan, a motor, and the like, which are not shown. The front panel 2 includes a front panel main body 20. The front panel main body 20 opposes the bottom frame 10 in the front-rear direction. An opening (see Figure 9 ) which exposes the internal components is provided in a front surface plate 12 of the bottom frame 10 which opposes the front panel main body 20. The front panel 2 exposes or conceals the components in the bottom frame 10 by opening and closing with respect to the bottom frame 10.

[0050] (Front panel and bottom frame)

[0051] The bottom frame 10 has a substantially rectangular parallelepiped shape. The bottom frame 10 has bottom frame side plates 11 on both left and right sides of the front surface plate 12. The bottom frame 10 is provided with an air outlet CF at a position lower than the front panel main body 20.

[0052] In the present embodiment, the front panel main body 20 has a substantially rectangular shape which extends in the up-down direction and the left-right direction. The front face (front surface) of the front panel main body 20 is disposed along the up-down direction as viewed from the side. Bending portions 30 which are bent toward the bottom frame side plates 11 are provided on both sides of the front panel main body 20. The bending portions 30 wrap at least a portion of the bottom frame side plates 11. The main body of the bending portions 30 has a shape which widens (increases in width in the front-rear direction) as it goes downward as viewed from the side. The main body of the bending portions 30 is a portion which is higher than the following curved bottom portions 31b. By making the main body of the bending portions 30 have a shape which widens, it is possible to make the appearance of the front panel thinner and to ensure strength at the time of opening and closing. As shown in Figure 6 , the uppermost portion of the bending portions 30 (of the main body) which widen has a width in the front-rear direction which is greater than the thickness of the front panel main body 20, whereby, as viewed from the side, the structure of the ribs and the like on the back of the front panel main body 20 is hidden, and the degree of beauty is improved.

[0053] The bottom frame side panel 11 has a protruding first sidewall 111. The first sidewall 111 protrudes outward from the bottom frame 10 in the left-right direction. The first sidewall 111 faces forward (more specifically, faces forward and downward). The first sidewall 111 extends from the upper end to the lower end of the bottom frame side panel 11 in the vertical direction, for example. The bottom frame side panel 11 has a rear wall 112 that bends backward from the outer end (outer side) of the first sidewall 111 at a position rearward than the first sidewall 111, and a front wall 113 that bends forward from the inner end (inner side) of the first sidewall 111 at a position forward than the first sidewall 111. The rear wall 112 protrudes beyond the front wall 113.

[0054] like Figure 2 As shown, the first sidewall 111 has a first portion 111a and a second portion 111b. The first portion 111a abuts against the sidewall 31 of the bend portion 30 from the rear. The first portion 111a is a straight line extending downward and rearward. The second portion 111b bends away from the bend portion 31 from the lower end of the first portion 111a. In this embodiment, the second portion 111b is a convex arc shape protruding forward and downward. Furthermore, the first sidewall 111 also has a third portion 111c that bends away from the bend portion 31 from the upper end of the first portion 111a.

[0055] The outer end (in the left-right direction) of the first sidewall 111 is flush with the outer surface of the bent sidewall 31. The outer surface of the rear wall 112 is flush with the outer surface of the bent sidewall 31. In this embodiment, the protrusion height of the first sidewall 111 is equal to the thickness of the bent sidewall 31. Thus, the bent portion 30, which covers at least a portion of the bottom frame sideplate 11, is aligned with the bottom frame sideplate 11. When the front panel is closed, the sides of the housing 1 are on the same plane, making the overall appearance of the air conditioner indoor unit 100 more streamlined and concise, improving its aesthetics, and effectively preventing dust from entering between the bent portion 30 and the bottom frame sideplate 11.

[0056] The bottom of the bent portion side wall 31 has a curved shape away from the first side wall 111. In more detail, the bent portion side wall 31 has a fitting portion 31a and a curved bottom portion 31b. The fitting portion 31a is linearly shaped extending toward the lower and rear direction. The bent portion side wall 31 is fitted to the first portion 111a of the first side wall 111 at the fitting portion 31a. The curved bottom portion 31b is curved from the lower end of the fitting portion 31a in a direction away from the first side wall 111. In the present embodiment, the curved bottom portion 31b is circular arc shaped protruding outward, and protrudes to a position lower than the front panel main body 20. When the radius of curvature of the circular arc shaped bottom portion of the bent portion side wall 31, i.e., the curved bottom portion 31b, is set to R1, and the radius of curvature of the second portion 111b is set to R2, R2 > R1. In one example, R1 is about 10 mm, and R2 is about 30 mm. Further, in the up and down direction, the lowest position of the bent portion 30 (the lowest position of the curved bottom portion 31b) is higher than the lowest position of the bottom frame side plate 11 (the lowest position of the front wall 113). In addition, the bent portion side wall 31 further has a linear portion 31c extending further upward and forward from the fitting portion 31a.

[0057] The front wall 113 and the first side wall 111 of the bottom frame side plate 11 form a housing region that houses the bent portion 30. The bottom frame side plate 11 (the front wall 113) between the curved bottom portion 31b and the second portion 111b constitutes the opening and closing portion 40 for opening the front panel. The opening and closing portion 40 thus constituted has both aesthetic and functional properties, and can easily open the front panel and ensure safety when a finger is contacted. Further, the opening and closing portion 40 is exposed to the outside (not covered by the bent portion 30) at the bottom of the front wall 113, and can reduce the height of the work and reduce the safety hazard when working.

[0058] In the present embodiment, the bottom edge of the front wall 113 overlaps the air outlet CF when viewed in the side view, and is formed in an inclined shape located downward as it goes toward the rear direction. Since the curved bottom portion 31b protrudes outward to a position lower than the front panel main body 20, it can better respond to the inclined shape of the bottom edge of the front wall 113, and improve the aesthetic property.

[0059] Further, the front panel 2 is provided with a second connecting portion 21 that cooperates with the first connecting portion 121 on the bottom frame 10. For example, the front panel 2 and the bottom frame 10 are detachably fixed by a snap structure. In the present embodiment, the second connecting portion 21 is provided on the front panel main body 20 (but not limited thereto, and the second connecting portion can also be provided on the bent portion 30). For example, the second connecting portion 21 is a protrusion formed on the front panel main body 20, and the first connecting portion 121 is a groove formed on the bottom frame 10. Figure 6 and Figure 9As shown, the second connecting part 21 is arranged on the back of the front plate body 20. Preferably, the second connecting part 21 is arranged on the position close to the opening and closing part 40 at the bottom of the back of the front plate body 20. The second connecting part 21 protrudes from the back of the front plate body 20 to the side of the bottom frame 10, and is provided with a hook part 21a at the front end. The front surface plate 12 of the bottom frame 10 is provided with a first connecting part 121 matched with the second connecting part 21. The first connecting part 121 is formed with an engaging part 121a for engaging the hook part 21a of the second connecting part 21. For example, at least one of the engaging part 121a and the hook part 21a can be deformed in the up and down direction to release the fixation of the first connecting part 121 and the second connecting part 21 when the front plate is opened.

[0060] As shown in Figure 4 and Figure 6 The bending part side wall 31 and the first side wall 111 have a separation starting position M. In this embodiment, the first part 111a of the first side wall 111 and the abutting part 31a of the bending part side wall 31 are continuously abutted from top to bottom. The curved bottom part 31b is curved from the lower end of the abutting part 31a to the direction away from the first side wall 111. The second part 111b is curved from the lower end of the first part 111a to the direction away from the bending part 31. The lower end of the first part 111a and the lower end of the abutting part 31a constitute the separation starting position M.

[0061] In the closed state of the front plate, the bottom of the first connecting part 121 and the second connecting part 21 is flush with or higher than the separation starting position M in the up and down direction. Thus, the operation position of the operator to open the front plate through the opening and closing part 40 is not higher than the bottom of the first connecting part 121 and the second connecting part 21, which can ensure the strength when a load is applied at the connecting position, and avoid the situation that the operation position is not appropriate, and the force is too large when the opening and closing operation is performed, which can cause the rupture of the connecting part (the first connecting part 121 and the second connecting part 21). Therefore, through the cooperation of the connecting position of the first connecting part 121 and the second connecting part 21 and the opening and closing part 40, the above-mentioned adverse conditions can be effectively avoided, the product reliability and operability can be ensured, and the strength of the front plate can be improved.

[0062] In addition, in the example shown in Figure 9 In order to further stably fix the front plate 2 and the bottom frame 10, a connecting structure such as a buckle structure matched with each other is arranged at the middle position of the bottom of the back of the front plate body 20 and the corresponding position of the bottom frame 10.

[0063] In addition, the front plate 2 can rotate relative to the bottom frame 10 to open and close. In this embodiment, the front plate 2 is openably and closably mounted on the bottom frame 10 through the connecting part 22 arranged on the top of the front plate body 20. The connection and assembly relationship between the connecting part 22 and the bottom frame 10 is the same as that of the existing air conditioner indoor unit, so it will not be described here.

[0064] The top of the bottom frame side plate 11 has a circular arc guide corner opposite the front plate 2 to avoid the movement path when the front plate is opened. For example, the top of the front end of the bottom frame side plate 11 has a circular arc guide corner to avoid the movement path of the front plate body 20 when the front plate is opened. In addition, the third portion 111c of the first side wall 111 has a circular arc guide corner to avoid the movement path of the bending portion 30 when the front plate is opened.

[0065] Returning to Figure 1 In the bottom frame 10, an air outlet CF is formed below and behind the front plate body 20. In this embodiment, a first air deflector DF1 and a second air deflector DF2 located forward of the first air deflector are provided in the air outlet CF. In the up-down direction, the second air deflector DF2 is located above the first air deflector DF1. Although not shown, the air conditioner indoor unit 100 also includes a driving mechanism that drives the first air deflector DF1 and the second air deflector DF2 to rotate. The first air deflector DF1 and the second air deflector DF2 can form a first angle (Coanda angle) to form a wall attachment airflow that blows air from the air outlet CF along the lower surface DF21 of the second air deflector DF2. The angle, control method, and the like of the first air deflector DF1 and the second air deflector DF2 for forming the Coanda angle are the same as those of the existing air conditioner indoor unit, so they will not be described here.

[0066] To achieve the Coanda effect, the air outlet needs to be expanded to some extent. To this end, the air conditioner indoor unit 100 of this embodiment can visually reduce the thick and heavy feeling caused by the Coanda structure by providing the gradually expanding bending portion 30. Preferably, the rear end of the bending portion 30 is located forward of the rear end of the second air deflector DF2 in the closed state when viewed from the side. In this embodiment, the lower end of the fitting portion 31a of the bending portion side wall 31 (separation start position M) becomes the rear end of the bending portion 30. Thus, the angle between the fitting portion 31a of the bending portion side wall 31 and the front plate body 20 when viewed from the side is not too large, and the aesthetic appearance is further improved. In one example, the fitting portion 31a and the front plate body 20 each have a linear shape when viewed from the side, and the angle α between the fitting portion 31a and the front plate body 20 is about 4°.

[0067] In addition, the connection position L of the bottom frame side plate 11 on both sides of the air outlet CF arrangement area in the bottom frame 10 has a curved shape that protrudes outward. The position where the bending portion 30 bends from the front plate body 20 overlaps the connection position L and has a curved shape corresponding to the connection position L.

[0068]

[0069] In the above embodiment, the Coanda effect is achieved by the first air deflector DF1 and the second air deflector DF2. However, it is not limited thereto, and other structures for achieving the Coanda effect can also be used. Figure 10 ​is a perspective view schematically showing the overall structure of the air-conditioning indoor unit 100A of the modification example. Hereinafter, mainly the differences from the above-described embodiment 1 will be described, and sometimes the same reference numerals are assigned to the same constituent elements as those of the above-described embodiment 1 and the repeated description is omitted. Unless otherwise described in the following or in conflict with other technical features, the features described in the embodiment 1 are also applicable to the present modification example, and detailed description thereof is omitted here.

[0070] In Figure 10 In the example shown, the air-conditioning indoor unit 100A includes a housing 1A. The housing 1A includes a bottom frame 10 and a front panel that is attached to the bottom frame from the front side. The front panel exposes or conceals the components in the bottom frame 10 by opening and closing with respect to the bottom frame 10. On both sides of a front panel main body 20A of the front panel, a bent portion 30A bent toward a bottom frame side plate 11 of both sides of the bottom frame 10 is provided. The main body of the bent portion 30A has a diverging shape in which the width increases toward the lower side.

[0071] The bottom frame side plate 11 is provided with a first side wall 111 that protrudes. The first side wall 111 has a first portion 111a and a second portion 111b. The first portion 111a is in contact with a bent portion side wall 31A of the bent portion 30A. The bottom portion of the bent portion side wall 31A has a curved shape that is away from the first side wall 111. The bottom frame side plate 11 between the bottom portion of the bent portion side wall 31A and the second portion 111b constitutes an opening and closing portion 40.

[0072] In the bottom frame 10, an air outlet CF is formed. In the present modification example, the lower end of the front panel main body 20A is provided with an attached wall panel 23 that protrudes outward in the front-rear direction. The air outlet CF is located below and behind the attached wall panel 23. A third damper DF3 is provided at the air outlet CF. The third damper DF3 can form a second angle (a Coanda angle) to form an attached wall air flow in which air passing through the upper surface (not shown) of the third damper DF3 flows along the lower surface of the attached wall panel 23. The angle of the third damper DF3 for forming the Coanda angle, the control method, and the like are the same as those of the existing air-conditioning indoor unit, and thus the detailed description thereof is omitted here.

[0073] The air-conditioning indoor unit 100A of the present modification example can reduce the sense of thickness due to the Coanda structure by providing the diverging bent portion 30A. Preferably, when viewed from the side, the rear end of the bent portion 30A is located at a position that is on the front side than the rear end of the third damper DF3 in the closed state.

[0074] The utility model has been described above in conjunction with the drawings, and obviously the specific implementation of the utility model is not limited by the above-described embodiments.

[0075] In the above embodiment and modification, the bottom of the bent portion side wall is in a circular arc shape protruding outward, and the second portion is in a convex circular arc shape. However, it is not limited thereto, and the bottom of the bent portion side wall can be in a circular arc shape recessed inward, and the second portion can be in a circular arc shape recessed toward the side opposite to the bent portion side (concave circular arc shape).

[0076] In the air conditioner indoor unit 100 of the above embodiment, a handgrip portion (for example, having a shape of a notch cut from the bottom edge) can be further provided at a middle position of the bottom edge of the front panel main body 20, for opening or closing the front panel by one hand. A connection structure that cooperates with the bottom frame can be provided at a position near the handgrip portion in the back surface of the front panel main body 20.

[0077] In the above embodiment and modification, a structure for achieving the Coanda effect is provided. However, it is not limited thereto, and the structure for achieving the Coanda effect can be omitted.

[0078] In the above embodiment and modification, a handgrip portion (for example, having a shape of a notch cut from the bent portion side wall) can be provided at a middle position of the portion of the bent portion side wall that is fitted to the first side wall of the bottom frame side plate.

[0079] In the above embodiment, the first portion is in a straight line shape extending toward the lower and rear directions. However, it is not limited thereto, and the first portion can be in a wavy line shape or an arcuate shape.

[0080] The above specific embodiments of the present application are described in detail in combination with the drawings. However, it is understood that the above description does not limit the present application in any form, and the technical features in each embodiment can be combined in any manner to form new embodiments. In addition, those skilled in the art can make various other modifications and changes to the present application according to needs after understanding the above specific embodiments. These do not deviate from the essential content of the present application.

Claims

1. An indoor unit of an air conditioner, characterized in that: a casing comprises a bottom frame and a front plate coupled to the bottom frame from a front side, the front plate exposing or shielding components in the bottom frame by opening or closing relative to the bottom frame; a bending portion of a bottom frame side plate is provided on both sides of a front plate body of the front plate and is bent toward a bottom frame side plate; a main body of the bending portion is in a diverging shape that widens as it goes downward; the bottom frame side plate is provided with a first side wall that is protruded, the first side wall has a first portion and a second portion, the first portion is fitted to a bending portion side wall of the bending portion, the second portion is bent from a lower end of the first portion in a direction away from the bending portion, an outer end of the first side wall is flush with an outer surface of the bending portion side wall, a bottom portion of the bending portion side wall has a curved shape away from the first side wall, and a portion of the bottom frame side plate between the bottom portion of the bending portion side wall and the second portion constitutes an opening and closing portion.

2. The indoor unit of claim 1, characterized in that: the bottom portion of the bending portion side wall is in a circular arc shape that protrudes outward and protrudes to a position lower than the front plate body, the second portion is in a convex circular arc shape, and when a radius of curvature of the circular arc shape of the bottom portion of the bending portion side wall is Rl and a radius of curvature of the second portion is R2, R2 > Rl.

3. The indoor unit of claim 1, characterized in that: the bottom portion of the bending portion side wall is in a circular arc shape that is concave inward, and the second portion is in a circular arc shape that is concave to a side opposite to the bending portion side.

4. The indoor unit of claim 1, characterized in that: an air outlet is formed in the bottom frame, the air outlet is located on a lower side of the front plate body, a first air baffle and a second air baffle located at a position further forward than the first air baffle are provided in the air outlet, the first air baffle and the second air baffle can form a first angle to form an attached wall air flow that makes air blown out from the air outlet follow a lower surface of the second air baffle, and a rear end of the bending portion is located at a position further forward than a rear end of the second air baffle in the closed state when viewed from a side.

5. The indoor unit of claim 1, characterized in that: the bending portion side wall and the first side wall have a separation start position.

6. The indoor unit of claim 5, characterized in that: the front plate is provided with a second connecting portion that cooperates with a first connecting portion on the bottom frame, and a bottom portion of the first connecting portion and the second connecting portion is flush with or higher than the separation start position in the closed state of the front plate.

7. The indoor unit of claim 1, characterized in that: a hand hold portion is further provided at a middle position of a bottom edge of the front plate body, and a connecting structure that cooperates with the bottom frame is provided at a position close to the hand hold portion in a back surface of the front plate body.

8. The indoor unit of claim 1, characterized in that: a top portion of the bottom frame side plate has a circular arc guide corner opposite to the front plate.

9. The indoor unit of claim 1, characterized in that: an attached wall panel that protrudes outward is provided at a lower end of the front plate body. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ An air outlet is formed in the bottom frame, and the air outlet is located at the lower side of the attached wall panel, A third air deflector is arranged at the air outlet, and the third air deflector can form a second angle to form an attached wall air flow along the lower surface of the attached wall panel. 10.The air conditioner indoor unit of claim 1, wherein The protrusion height of the first side wall is equal to the thickness of the bent portion side wall, The first portion is in a straight line shape, a wavy line shape, or an arc line shape extending toward the lower side and the rear side.

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