CN109405071B

CN109405071B - Indoor unit of air conditioner

Info

Publication number: CN109405071B
Application number: CN201710691158.1A
Authority: CN
Inventors: 代展波; 姚永林; 陈彬; 杨贝贝
Original assignee: Daikin Industries Ltd
Current assignee: Daikin Industries Ltd
Priority date: 2017-08-14
Filing date: 2017-08-14
Publication date: 2021-08-27
Anticipated expiration: 2037-08-14
Also published as: CN109405071A

Abstract

The invention provides an air-conditioning indoor unit, comprising: the air conditioner comprises a shell, a fan and a control device, wherein the shell is provided with a front plate, a top plate, a bottom plate and a side wall frame, the front plate is provided with an air outlet, and the side wall frame is provided with an air inlet surface; the front plate and the side frame are arranged along the vertical direction; a fan disposed within the housing; and a heat exchanger disposed within the housing partially around the fan; the shell is characterized by further comprising an inner concave part, wherein the inner concave part is arranged between the longitudinal edge of the side wall frame and the longitudinal edge of the front plate, and the two longitudinal edges are connected through the inner concave part. The concave portion advantageously prevents the flow of outlet air from flowing into the suction surface in a short circuit.

Description

Indoor unit of air conditioner

Technical Field

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

Background

There has been developed a vertical type indoor unit of an air conditioner installed at a corner of a wall in a wall-hanging manner or a floor-standing manner. Such an air conditioning indoor unit generally includes a casing, a heat exchanger accommodated in the casing, a fan assembly, and electrical components and the like. Generally, under the driving of the fan assembly, the air flow is sucked from the air inlet surface on the side frame of the indoor unit casing, then flows through the heat exchanger, and finally is sent out from the air outlet positioned at the front of the outer casing. The existing vertical air-conditioning indoor surface has a problem that air flowing out of an air outlet easily enters an air suction surface, and particularly, when the air outlet airflow is guided to the direction of the air suction surface or is guided to be close to the air suction surface under the action of air guide blades, return air short circuit is easily caused, and the refrigeration efficiency of the indoor unit of the air conditioner is influenced.

Disclosure of Invention

In order to overcome the above-mentioned defect, the invention provides an air-conditioning indoor unit, comprising: the air conditioner comprises a shell, a fan body and a fan blade, wherein the shell is provided with a top plate, a bottom plate opposite to the top plate, a front plate and a side wall frame; the front plate and the side frame are arranged along the vertical direction; a fan disposed within the housing; and a heat exchanger disposed within the housing partially around the fan; the shell further comprises an inner concave part, the inner concave part is arranged between the longitudinal edge of the side wall frame and the longitudinal edge of the front plate, and the two longitudinal edges are connected through the inner concave part.

According to one aspect of the invention, at least a portion of the concave portion is a concave arcuate surface.

According to yet another aspect of the invention, the air outlet opening of the front panel is elongated and the interior recess is disposed between the longitudinal edge of the front panel and the longitudinal edge of the side frame at least along the entire longitudinal length of the air outlet opening.

According to still another aspect of the present invention, in a horizontal cross section of the case, the concave portion includes a first section, a second section and a third section, one side of the first section is connected to the side frame, the second section is interposed between the first section and the third section, and one side of the third section is connected to the front plate, wherein the second section is in a shape of a concave arc.

Preferably, the second section is circular arc-shaped, the radian of the second section is 50-150 degrees, and the radius of the circular arc is 1-30 mm.

Preferably, the first section is linear or circular arc shaped and the third section is linear or circular arc shaped.

Preferably, the first section is in the shape of a circular arc concave towards the cavity formed by the shell, the radian of the first section is 0-5 degrees, and the radius of the circular arc is 1000-2000 mm.

Preferably, the third section is in the shape of a circular arc concave towards the cavity formed by the shell, the radian of the third section is 10-100 degrees, and the radius of the circular arc is 10-200 mm.

According to a further aspect of the invention, the front panel is also provided with a face plate which slides along the front panel in translation between an open position in which the outlet vents of the front panel are exposed, and a closed position in which the outlet vents of the front panel are concealed by the face plate.

Preferably, a longitudinal edge of the panel is displaced in a horizontal direction beyond a longitudinal edge of the front panel when the panel is in an open position in which the distance between the longitudinal edge of the panel and the longitudinal edge of the front panel is d1, the shortest distance between the panel and the first section is d2, d 1: d2 is in the range of 0.5-1.5.

Preferably, a longitudinal edge of the panel is displaced in a horizontal direction beyond the longitudinal edge of the front panel when the panel is in an open position in which the shortest distance between said panel and said first section is d2, the length of said first section of said recess being d3, d 3: d2 is in the range of 1-4.

According to a further aspect of the invention, the first section forms a fillet with the longitudinal edge of the side frame, the fillet having a radius in the range of 1-15 mm.

According to still another aspect of the present invention, the side frame includes a first side frame portion adjacent to the inner recessed portion, and a second side frame portion extending from the first side frame portion toward a back side of the indoor unit of the air conditioner and having a substantially flat surface, the second side frame portion forming the air intake surface, the first side frame portion extending at an angle with respect to the second side frame portion or being bent toward the front panel side.

Preferably, the first side frame portion is a plane.

Preferably, the first side frame portion is provided with an air inlet, and the air inlet forms a part of the air inlet surface.

Preferably, the first side frame part is an arc-shaped surface, the radian of the arc-shaped surface is 30-60 degrees, and the radius is 80-300 mm.

Preferably, the recess is formed integrally with the front panel and/or the side frame, or the recess is detachably connected to the front panel and/or the side frame.

In the use process, a lengthened guide surface is formed on the surface of the inner concave part, and a small amount of air outlet flow is guided to enter the inner concave part, so that a cyclone vortex is formed, and the condition that the air outlet flow is directly sucked into the air inlet surface is reduced. In the invention, the wind guide blade on the air outlet is constructed into one side of the side wall frame which can provide the air flow with the air inlet surface, in this case, the arrangement of the concave part is particularly favorable, the short circuit of the outlet air can be obviously reduced, and most of the outlet air flow can uniformly flow to the appointed direction.

In addition, the vortex formed in the inner concave part can disturb the airflow near the longitudinal edge of the side frame to accelerate, so that the air intake amount is increased.

The concave part is formed by a first section, a second section and a third section, wherein the second section forms an arc-shaped surface, and the arrangement is favorable for forming stable vortex airflow in the groove of the concave part, so that the condition of airflow short circuit is reduced.

The panel that can shift out by relative front bezel longitudinal edge outside level is favorable to on the one hand leading the air current to the wall body, makes the air current flow along the wall, reaches the purpose uniformly that makes indoor air current, and on the other hand, the panel has constituted return air current portion of holding with the darker recess of formation of interior concave part, avoids the air current to flow back and flows into the face that induced drafts.

Drawings

Fig. 1A is a perspective view of an air conditioning indoor unit according to the present invention, in which a panel is in a closed state.

Fig. 1B is a perspective view of an air conditioning indoor unit according to the present invention, in which a panel is in an open state.

Fig. 2 shows a horizontal sectional view of an air conditioning indoor unit according to the present invention.

FIG. 3A shows a cross-sectional view of an interior recess in a housing according to a first preferred embodiment of the invention.

FIG. 3B shows a cross-sectional view of the interior recess in the housing with a face plate mounted thereon and in an open position in accordance with the first preferred embodiment of the present invention.

Fig. 4 shows a schematic view of an internal recess in a housing according to a second preferred embodiment of the invention.

Fig. 5 shows a schematic view of an internal recess in a housing according to a third preferred embodiment of the invention.

Fig. 6 shows a schematic view of an internal recess in a housing according to a fourth preferred embodiment of the invention.

List of reference numerals

1 air-conditioning indoor unit

10 casing

11 front plate

110 air outlet

12 bottom plate

15 side frame

151. 152 side frame

20 concave part

60 Panel

111. 150 longitudinal edge

601 longitudinal edges of the panel

30 heat exchanger

40 Fan

AB first side frame part

AA' second side frame part

BC first section

Second segment of CD

DE third section

EF one-section panel

Detailed Description

The present invention is further described in the following description with reference to specific embodiments and the accompanying drawings, wherein the details are set forth in order to provide a thorough understanding of the present invention, but it is apparent that the present invention can be embodied in many other forms different from those described herein, and it will be readily appreciated by those skilled in the art that the present invention can be implemented in many different forms without departing from the spirit and scope of the invention.

As shown in fig. 1A, 1B, and 2, the casing 10 of the air conditioning indoor unit 1 generally has a ceiling plate (not shown), a bottom plate 12 opposite to the ceiling plate, a front plate 11, and a side surrounding frame 15. The front plate extends approximately perpendicular to the top plate and the bottom plate, and is provided with an air outlet, and the air outlet is further provided with vertical air guide blades 31 for guiding the air outlet flow to the two side walls. The side frame 15 likewise extends substantially perpendicular to the top and bottom panels and is provided with an air inlet portion. Preferably, the side frame 15 is formed by two angled side frames 151, 152, with the two

side frames

151, 152 being at approximately 90 degrees in the preferred embodiment shown. The indoor unit 1 of the air conditioner is a vertical wall-mounted indoor unit 1, a fixing structure fixed to a vertical wall body is arranged on a side wall frame 15 of the indoor unit 1, in an installation state, a shell 10 of the indoor unit 1 of the air conditioner is vertical, two

side frames

151 and 152 are respectively opposite to two wall surfaces, and air flow gaps are reserved between the side frames 151 and 152 and the wall surfaces.

As shown in fig. 1A and 1B, a movable panel 60 is provided on the front plate 11 of the housing 10. The movable panel 60 is shown as being provided with two movable panels which are movable between an open position and a closed position by a slide drive mechanism, the two movable panels 60 being slidable in horizontal and opposite directions to the open position in which the outlet 110 in the front panel 11 is exposed, and the two movable panels 60 being slidable in horizontal and opposite directions to an intermediate adjacent position in which the panels 60 reach the closed position to close the outlet 110.

As shown in fig. 1B, the air outlet 110 of the front plate 11 is elongated, specifically, the air outlet 110 is elongated in the vertical direction, for example, a rectangle elongated in the vertical direction, an ellipse, or a rectangle with rounded corners, and is disposed at a middle position of the front plate 11.

Fig. 2 shows a horizontal cross-section according to the invention. The casing of the indoor unit 1 of an air conditioner forms a chamber in which the heat exchanger 30, the fan 40, and the control parts are housed. The fan 40 may be a cross flow fan, the diameter of which is preferably between 100mm and 120 mm.

According to the present invention, the casing 10 of the air conditioning indoor unit 1 further includes an inner recess 20, and the two longitudinal edges 111 of the front panel 11 are connected to the longitudinal edges 150 of the two

side frames

151, 152 through the inner recess 20, respectively. The inner recess 20 forms the transition between the front panel 11 and the side frame 15, is concave relative to the plane formed by the connection of the two

longitudinal edges

111, 150, and preferably comprises at least a portion of an inwardly concave arcuate surface. Such an inwardly concave arcuate surface may guide the airflow to form a vortex. The longitudinal edge 111 and the longitudinal edge 150 are substantially parallel, the distance between the two preferably being up to 5 cm. The concave portion 20 may be formed integrally with the front panel 11 and/or the side frame 15, or may be fitted to the front panel 11 and the side frame 15 by fasteners. The concave part 20 forms a longitudinal groove between the front plate 11 and the side frame 15, and the longitudinal groove separates the

longitudinal edges

111 and 150, so that a small part of the outlet airflow flows into the slow groove surface to form a vortex in the use process of the indoor unit 1 of the air conditioner, thereby forming a barrier between the outlet airflow in the direction indicated by the arrow G in fig. 2 and the inlet airflow in the direction indicated by the arrow H and avoiding short circuit of the airflow.

As can be seen in fig. 1A, the inner recess 20 is provided along the entire

longitudinal edges

111, 150 of the front panel 11 and the side frame 15, extending from the top panel of the housing 10 all the way to the bottom panel of the housing 10. It will be appreciated that the recess 20 may also be provided along only a portion of the entire

longitudinal edge

111, 150, preferably the recess 20 is provided along only the entire longitudinal length of the outlet mouth 110 in the front panel 11.

Fig. 3A shows a horizontal cross-sectional view of the concave part 20 according to the first embodiment of the present invention. The partial cross section of the housing 10 includes the first side frame portion AB of the side frame 151 on the side close to the front plate 11 and the inner concave portion 20. The first side frame portion AB of the side frame 151 is a part of the side frame 15. In the horizontal section shown in fig. 3A, the concave recess 20 includes a first section BC, one side of which is connected to the longitudinal edge 150 of the side gusset frame 15, a second section CD, one side of which is connected to the longitudinal edge 111 of the front panel 11, and a third section DE interposed between the first section BC and the third section DE. The recess 20 is recessed with respect to the plane in which the two

longitudinal edges

111 and 150 lie, and the longitudinal edge 111 is closer to the air outlet opening in the front panel than the longitudinal edge 150, as seen from the front of the front panel 11, so that at least a part of the first section BC can be seen from the front of the housing 10.

The first side frame portion AB is formed into a first side frame portion AB having a bent shape which is disposed at an angle with respect to the second side frame portion AA 'of the side frame 151, typically, the angle is between 15 degrees and 50 degrees, or the first side frame portion AB is bent toward the front plate side with respect to the second side frame portion AA'. As can be seen from fig. 2, in the mounted state, the first side frame portion AB and the second side frame portion AA' are opposed to the same side wall surface. The second side frame portion AA ' is substantially planar, and in a use state, the second side frame portion AA ' is arranged in parallel with the wall surface at a certain distance, and the second side frame portion AA ' forms an air inlet surface. The first side frame portion AB, which is adjacent to the inner concave portion 20, may also be provided with an air inlet, thereby forming a part of the entire air inlet surface of the side frame 15. The air inlet arranged on the first side frame portion AB can obviously increase the air inlet amount, but the arrangement of the inner concave portion 20 can effectively prevent the air outlet airflow of the air outlet from directly flowing into the air inlet arranged on the first side frame portion AB. Further, the first side frame portion AB is bent in the direction of the heat exchanger 30 in the casing 1, and the first side frame portion AB is bent closer to the heat exchanger 30 than in the case where the first side frame portion AB is not bent, so that the air flow entering from the first side frame portion AB can more sufficiently pass through the heat exchanger 30, and the efficiency of heat exchange is improved.

In the first embodiment, the first side frame portion AB is circular arc shaped. Preferably, the arc of the first frame portion AB is between 30 and 60 degrees and the radius is between 80 and 300mm, and more preferably, the arc of the first frame portion AB is 42 degrees and the radius is 195 mm. The point B in the first side frame part AB is located at the longitudinal edge 150 of the side frame, the distance d between the point B and the line in which the second side frame part AA' is located being 30-100mm, preferably 50 mm. The first side frame part AB is designed to form a gradually expanding air inlet between the wall and the air inlet surface, thereby improving the air inlet amount.

In the first embodiment, the first section BC of the concave portion 20 is linear, the second section CD is circular arc-shaped, and the third section DE is circular arc-shaped, and both the second section CD and the third section DE are concavely curved toward the inner side of the cavity of the housing 10. The first BC, second CD and third DE sections smoothly transition between each other. The first section BC preferably extends substantially parallel to the front panel, and the second section CD preferably has an arc of 50-150 degrees and an arc radius of 1-30mm, more preferably an arc of 107.5 degrees and a radius of 12 mm. Preferably, the arc of the third section DE is 10-100 degrees and the arc radius is 10-200mm, and more preferably, the arc of the third section DE is 31 degrees and the arc radius is 76 mm.

Fig. 3B also shows a cross-sectional view of the interior recess 20 in the housing 10 according to the first embodiment of the present invention, with the face plate 60 on the front panel 11 in a fully open position. When the panel 60 is slid open in the horizontal direction, one side longitudinal edge 601 of the panel 60 moves beyond the longitudinal edge 111 of the front plate 11, and when the air conditioning indoor unit 1 is installed on a wall body, the side longitudinal edge 601 of the panel 60 moves toward the wall body. At this time, the distance of a section of the panel EF between the longitudinal edge 601 of the panel 60 in the open state and the proximal longitudinal edge 111 of the front panel 11 is d1, while the shortest distance d2, preferably d 1: d2 is in the range of 0.5-1.5, and in the preferred embodiment shown, d 1: d2 is 0.96. While such a range of ratios is preferred, it is possible to use the protruding portion of the face plate 60 directly as a curtain, and at the same time create a swirling air flow in the concave portion 20, accelerating the air flow into the housing. On the other hand, the length of the first section BC of the fillet 20 is d3, preferably d 3: d2 is in the range of 1-4. In the preferred embodiment, the fully opened panel 60 is opposite to the first segment BC of the concave portion 20 at a distance d2, so that the concave portion 20 forms a groove recessed toward the inside of the cavity of the casing 10 at one side of the side frame 15, and a vortex is formed in the groove to prevent the air flow of the air outlet 110 from short-circuiting to the suction surface.

There are many variations of the fillet 20 according to the present invention.

Fig. 4 is a schematic view of an inner recess 20 in the housing 10 according to a second embodiment of the present invention. The cross-sectional shape of the concave portion 20 also includes a first side frame portion AB of the side frame 151 on the side close to the front plate 11, and the concave portion 20 includes a first section BC, a second section CD, and a third section DE. The first side frame portion AB is linear, the first section BC is linear, the second section CD is circular, and the third section DE is linear.

Fig. 5 is a schematic view of an inner recess 20 in the housing 10 according to a third embodiment of the present invention. The cross-sectional shape of the concave portion 20 also includes a first side frame portion AB of the side frame 151 on the side close to the front plate 11, and the concave portion 20 includes a first section BC, a second section CD, and a third section DE. The first side frame portion AB is rectilinear, the first section BC is circular arc-shaped, the second section CD is circular arc-shaped and the third section DE is rectilinear. When the first segment BC is circular arc, the radian of the first segment BC is preferably 0-5 degrees, and the radius of the circular arc is 1000-2000 mm.

Fig. 6 is a schematic view of an inner recess 20 in the housing 10 according to a fourth embodiment of the present invention. The cross-sectional shape of the concave portion 20 also includes a first side frame portion AB of the side frame 151 on the side close to the front plate 11, and the concave portion 20 includes a first section BC, a second section CD, and a third section DE. The first side frame portion AB is circular arc shaped, the first section BC is linear shaped, the second section CD is circular arc shaped and the third section DE is linear shaped.

In the embodiment shown in fig. 3A, 3B and 4-6, the second section CD is located substantially at the bottom of the groove formed by the inner recess 20 and is located at the back side of the front panel 11 (i.e. the side opposite to the panel 60), i.e. the third section DE forms an acute angle with the inner surface of the front panel 11, and when the air conditioning indoor unit 1 is viewed from the front, the second section CD is entirely recessed with respect to the longitudinal edge 111 of the front panel 11, and is not visible from the front.

Furthermore, the first side frame portion AB and the first section BC of the inner recess 20 are preferably transited by a rounded corner, which refers to a segment of a circular arc surface at the position of the B point, as shown in fig. 3A and 3B. The round angle can adopt a circular arc surface with the radius of 1-15mm, and more preferably, a circular arc surface with the radius of 10 mm. The fillet is arranged to facilitate the vortex formed in the inner concave portion 20 to drive the intake airflow to enter the housing 1 through the air inlet formed in the first side frame portion AB.

In use, the air conditioning indoor unit 1 according to the present invention is vertically installed in an indoor corner, at least one side frame is installed on a wall, and an air flow enters from a flared passage formed between the first side frame portion AB and the wall surface to reach an air inlet surface on the side frame 15 and then flows out from the air outlet 110 of the front panel 11. Particularly, when the air guiding blade 31 on the air outlet 110 is opened to a certain angle (for example, when the air guiding blade 31 rotates 50 degrees relative to the front plate 11) to guide the air flow to the wall, the concave portion 20 is provided to avoid the direct short circuit of the air flow from flowing back to the suction surface. The inner concave portion 20 forms a groove extending in a vertical direction of the casing 10, and a vortex airflow can be formed in the groove, thereby blocking the outlet air of the indoor unit 1 from flowing into the inlet air surface.

It should be noted that the concave portion 20 is also applicable to other indoor units of a floor air conditioner in which the outlet airflow is directed to the inlet side. The inner surface of the concave part 20 forms a lengthened guide surface for guiding a small amount of air flow to enter the concave part 20, thereby forming a cyclone vortex and reducing the condition that the air flow is directly sucked into the air inlet surface. In the invention, the wind guide blade on the air outlet is constructed into one side of the side wall frame which can enable the air flow to be provided with the air inlet surface, and under the condition, the concave part is beneficial to obviously reducing the condition of short circuit of the air outlet, so that most of the air outlet air flow can uniformly flow to the appointed direction.

In addition, the vortex formed in the concave portion 20 may disturb the airflow near the longitudinal edges of the side frame to accelerate it, thereby increasing the intake air amount.

The concave part is formed by a first section, a second section and a third section, wherein the second section forms an arc-shaped surface, and such arrangement is favorable for forming stable vortex airflow in the groove of the concave part 20, and is further favorable for reducing the condition of airflow short circuit.

The panel 60 that can outwards shift out horizontally relative to front bezel 11 longitudinal edge 111 is favorable to leading the air current to the wall body on the one hand, makes the air current flow along the wall, reaches the purpose that makes indoor air current even, and on the other hand, panel 60 and the darker recess of the formation of interior recess 20 have constituted return air current receiving portion, avoids the air current to flow back and flows into the face of induced drafting.

Although the present invention has been disclosed in terms of the preferred embodiment, it is not intended to limit the invention, and variations and modifications may be made by one skilled in the art without departing from the spirit and scope of the invention. Therefore, any modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention are within the protection scope defined by the claims of the present invention, unless the technical essence of the present invention departs from the content of the present invention.

Claims

1. An air conditioning indoor unit (1) comprising:

the air conditioner comprises a shell (10), wherein the shell (10) is provided with a front plate (11), a top plate, a bottom plate opposite to the top plate and a side wall frame (15), the front plate (11) is provided with an air outlet (110), and the side wall frame (15) is provided with an air inlet surface; the front plate (11) and the side frame (15) are arranged along the vertical direction;

a fan (40), the fan (40) being disposed within the housing (10); and

a heat exchanger (30), the heat exchanger (30) being disposed partially within the housing (10) around a fan (40);

the shell (10) is characterized by further comprising an inner concave part (20), wherein the inner concave part (20) is arranged between the longitudinal edge (150) of the side wall frame (15) and the longitudinal edge (111) of the front plate (11), the two longitudinal edges are connected through the inner concave part (20), the inner concave part is concave relative to a plane formed by connecting the longitudinal edge (150) of the side wall frame (15) and the longitudinal edge (111) of the front plate (11), and at least one part of the inner concave part is a concave arc-shaped surface.

2. Air conditioning indoor unit (1) according to claim 1, characterized in that the outlet mouth (110) of the front panel (11) is elongated and longitudinally extending, the inner recess (20) being arranged at least along the entire longitudinal length of the outlet mouth (110).

3. An air conditioning indoor unit (1) according to claim 1,

in a horizontal cross section of the case (10), the inner recess (20) includes a first section (BC) having one side connected to the side frame (15), a second section (CD) interposed between the first section (BC) and the third section (DE) having one side connected to the front panel,

wherein the second section (CD) is in the shape of an inwardly concave circular arc.

4. An air-conditioning indoor unit (1) as claimed in claim 3, wherein the second section (CD) has a circular arc shape with an arc degree of 50-150 degrees and a circular arc radius of 1-30 mm.

5. Air conditioning indoor unit (1) according to claim 3, characterized in that the first section (BC) is rectilinear or circular and the third section (DE) is rectilinear or circular.

6. The air conditioning indoor unit (1) of claim 3, wherein the first section (BC) is in the shape of a circular arc that is concave toward the chamber formed by the casing, the radian of the first section (BC) is 0-5 degrees, and the radius of the circular arc is 1000-2000 mm.

7. An air conditioning indoor unit (1) as claimed in claim 3, wherein the third section (DE) is in the shape of a circular arc recessed toward the chamber formed by the casing (10), and the arc of the third section (DE) is 10 to 100 degrees and has a radius of 10 to 200 mm.

8. An air conditioning indoor unit (1) as in claim 3, characterized in that a panel (60) is also provided on the front panel (11), the panel (60) sliding in translation along the front panel (11) from an open position in which the outlet mouth on the front panel (11) is exposed, and a closed position in which the outlet mouth on the front panel (11) is concealed by the panel.

9. Air conditioning indoor unit (1) according to claim 8, characterized in that a longitudinal edge of the panel (60) moves in a horizontal direction beyond the longitudinal edge (111) of the front panel (11) when the panel (60) is in the open position,

in the open position, the distance between the longitudinal edge of the panel (60) and the longitudinal edge of the front panel (11) is d1, the shortest distance between the panel (60) to the first section (BC) is d2, d 1: d2 is in the range of 0.5-1.5.

10. Air conditioning indoor unit (1) according to claim 8, characterized in that a longitudinal edge of the panel (60) moves in a horizontal direction beyond the longitudinal edge (111) of the front panel (11) when the panel (60) is in the open position,

in the open position, the shortest distance between the panel (60) to the first section (BC) is d2, the length of the first section (BC) of the fillet (20) is d3, d 3: d2 is in the range of 1-4.

11. Air conditioning indoor unit (1) according to claim 3 or 8, characterized in that the first section (BC) forms a fillet with the longitudinal edge of the side frame (15), the radius of the fillet being in the range of 1-15 mm.

12. An air conditioning indoor unit (1) according to claim 1, wherein the side frame includes a first side frame portion (AB) and a second side frame portion (AA '), the first side frame portion (AB) abutting the inner recess, the second side frame portion (AA') extending from the first side frame portion (AB) toward a back side of the air conditioning indoor unit and being substantially flat, the second side frame portion (AA ') forming a wind inlet surface, the first side frame portion (AB) extending at an angle with respect to the second side frame portion (AA') or being bent toward a side of the front panel (11).

13. An indoor unit (1) of an air conditioner according to claim 12, wherein the first side frame portion (AB) is a flat surface, and an air inlet is provided in the first side frame portion (AB), and the air inlet constitutes a part of the air inlet surface.

14. An indoor unit (1) of an air conditioner according to claim 12, wherein the first side frame portion (AB) is an arc-shaped surface having an arc degree of 30 to 60 degrees and a radius of 80 to 300 mm.