CN111895511A

CN111895511A - Indoor unit of air conditioner

Info

Publication number: CN111895511A
Application number: CN202010797819.0A
Authority: CN
Inventors: 王成龙; 黄煜鹏; 成凯; 龙从辉; 贾冰冰; 苏玉熙
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2020-08-10
Filing date: 2020-08-10
Publication date: 2020-11-06

Abstract

The invention provides an indoor unit of an air conditioner. The air-conditioning indoor unit comprises: the air conditioner comprises a shell, a first air inlet, a second air inlet, a first air outlet and a second air outlet, wherein the first air outlet is positioned above the second air outlet; the air duct component comprises a first cross flow fan and a second cross flow fan, and a first air outlet of the first cross flow fan is communicated with the first ventilation opening; a second air outlet of the second cross-flow fan is communicated with a second ventilation opening; an air channel is formed between the first cross flow fan and the second cross flow fan; the at least one separation assembly is arranged in the air duct and extends along the extending direction of the air duct; the separation component separates the air duct into at least two air duct sections along a first preset direction; the first preset direction is perpendicular to the extending direction of the air duct. The air conditioner indoor unit solves the problems that the air outlet quantity loss of the air conditioner indoor unit in the prior art is large and unbalanced.

Description

Indoor unit of air conditioner

Technical Field

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

Background

With the continuous innovation of the air conditioning industry, the single through flow and the single air port can not meet the requirements of modern people on the air conditioning technology, and the double through flow technology is continuously refreshed.

However, the two cross flow fans of the existing double cross flow air conditioner are both horizontally arranged and have a certain distance therebetween, and such a structure lengthens the air duct of the air conditioner, thereby bringing about many problems, such as: air output loss, unbalanced air output quantity and high noise of the air conditioner.

Disclosure of Invention

The invention mainly aims to provide an air conditioner indoor unit, which aims to solve the problems of large loss and unbalance of air outlet volume of the air conditioner indoor unit in the prior art.

In order to achieve the above object, the present invention provides an indoor unit of an air conditioner, comprising: the air conditioner comprises a shell, a first air inlet, a second air inlet, a first air outlet and a second air outlet, wherein the first air outlet is positioned above the second air outlet; the air duct component comprises a first cross flow fan and a second cross flow fan, and a first air outlet of the first cross flow fan is communicated with the first ventilation opening; the second cross-flow fan is arranged below the first cross-flow fan, and a second air outlet of the second cross-flow fan is communicated with the second ventilation opening, so that air is fed into the indoor unit of the air conditioner through the first ventilation opening and is discharged through the second ventilation opening, or the air is fed into the indoor unit of the air conditioner through the second ventilation opening and is discharged through the first ventilation opening; an air channel is formed between the first cross flow fan and the second cross flow fan; the at least one separation assembly is arranged in the air duct and extends along the extending direction of the air duct; the separation component separates the air duct into at least two air duct sections along a first preset direction; the first preset direction is perpendicular to the extending direction of the air duct.

Furthermore, the air-conditioning indoor unit also comprises a heat exchanger, the heat exchanger is arranged in the air duct, and the first cross flow fan and the second cross flow fan are arranged on two opposite sides of the heat exchanger.

Furthermore, at least part of the heat exchanger is obliquely arranged to divide the air duct into a first air duct and a second air duct, and the first air duct is communicated with the second air duct through the heat exchanger; the first air duct is communicated with a first air inlet of the first through flow fan; the second air duct is communicated with a second air inlet of the second cross flow fan; the separation assembly comprises a first separation plate and a second separation plate, the first separation plate is arranged in the first air channel, and the second separation plate is arranged in the second air channel; the first partition plate and the second partition plate extend along the extending direction of the air duct.

Further, the first partition plate and the second partition plate are arranged in an aligned mode along the extending direction of the air duct; or the first partition plate and the second partition plate are arranged in a staggered mode along the extending direction of the air duct.

Furthermore, the plurality of separating assemblies are arranged at intervals along the first preset direction so as to separate the air duct into a plurality of air duct sections.

Further, along the first preset direction, the air duct section has an air duct width; the air duct section has constant air duct width along the extending direction of the air duct; the air duct widths of the air duct sections are all equal.

Furthermore, a projection surface of the first partition board perpendicular to the first preset direction is triangular; the projection surface of the second partition plate perpendicular to the first preset direction is triangular.

Furthermore, the projection surface of the first partition board perpendicular to the first preset direction is in a trapezoid shape; the projection surface of the second partition plate perpendicular to the first preset direction is in a trapezoid shape.

Further, the housing includes a bottom case member, and the first partition plate is provided on the bottom case member.

Further, the first partition plate includes a first partition plate main body and a first noise reduction layer provided on the first partition plate main body; wherein the first noise reduction layer is made of a sound absorbing material; alternatively, the first partition plate is made of a sound absorbing material.

Further, the shell also comprises a panel component, a heat preservation piece is arranged on the inner side of the panel component, and the second partition plate is arranged on the heat preservation piece.

Further, the second partition plate comprises a second partition plate main body and a second noise reduction layer arranged on the second partition plate main body; wherein the second noise reduction layer is made of a sound absorbing material; alternatively, the second partition plate is made of a sound absorbing material.

Further, a first gap is formed between the first partition plate and the heat exchanger; a second gap is formed between the second partition plate and the heat exchanger.

Furthermore, the first partition plate is detachably connected with the bottom shell component, and the second partition plate is detachably connected with the heat preservation piece; after the first partition plate is arranged on the bottom shell component, the heat exchanger is arranged on the bottom shell component; and then the second partition plate and the heat preservation part which are integrally arranged are arranged on the bottom shell component.

In the air conditioner indoor unit, when the first cross flow fan is in a working state and the second cross flow fan is in a non-working state, air is discharged from the first ventilation opening and air is introduced from the second ventilation opening; when the second cross flow fan is in a working state and the first cross flow fan is in a non-working state, the second ventilation opening exhausts air and the first ventilation opening exhausts air, so that the air inlet and outlet are reversible; this air-conditioning indoor unit sets up in at least one partition subassembly through the wind channel, and partition subassembly extends along the extending direction in wind channel, can separate the wind channel for two at least wind channel sections along first predetermined direction, external air is extruded in the wind channel through first vent or second vent, the wind channel broad of entrance and just get into the circulation of air in wind channel are mixed and disorderly, when being extruded by the wind channel section, because the wind channel section narrows down, the air cross-over reduces, and the wind speed in the wind channel section accelerates, mixed and disorderly air will be become orderly air of flowing in the twinkling of an eye, flow out along the wind channel section and be carried in the room, thereby reduce the loss of inside amount of wind and increase air output of air-conditioning indoor unit, and the air-out is balanced.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 shows an exploded view of an embodiment of an air conditioning indoor unit according to the present invention;

fig. 2 shows a cross-sectional view of an embodiment of an air conditioning indoor unit according to the present invention;

fig. 3 is a front view showing an inner structure of an air conditioning indoor unit according to the present invention;

fig. 4 is a perspective view showing a heat insulating member and a second partition plate of an indoor unit of an air conditioner according to the present invention;

fig. 5 is a front view showing a heat insulating member and a second partition plate of an indoor unit of an air conditioner according to the present invention;

fig. 6 shows a side view of a heat retainer and a second partition plate of an indoor unit of an air conditioner according to the present invention;

fig. 7 shows a plan view of the insulation and the second partition plate of the indoor unit of an air conditioner according to the present invention.

Wherein the figures include the following reference numerals:

10. an air duct member; 11. a first through flow fan; 12. a second crossflow blower; 13. an air duct; 131. a first air duct; 132. a second air duct; 133. an air duct section; 20. a heat exchanger; 30. a partition assembly; 31. a first partition plate; 32. a second partition plate; 40. a bottom case member; 50. a heat preservation member.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The present invention provides an indoor unit of an air conditioner, please refer to fig. 1 to 7, which includes: the air conditioner comprises a shell, a first air inlet, a second air inlet, a first air outlet and a second air outlet, wherein the first air outlet is positioned above the second air outlet; the air duct component 10 comprises a first cross flow fan 11 and a second cross flow fan 12, and a first air outlet of the first cross flow fan 11 is communicated with a first ventilation opening; the second cross flow fan 12 is arranged below the first cross flow fan 11, and a second air outlet of the second cross flow fan 12 is communicated with the second ventilation opening, so that air in the indoor unit of the air conditioner is fed in from the first ventilation opening and is discharged from the second ventilation opening, or the air in the indoor unit of the air conditioner is fed in from the second ventilation opening and is discharged from the first ventilation opening; an air duct 13 is formed between the first cross flow fan 11 and the second cross flow fan 12; at least one partition assembly 30 disposed in the air duct 13, the partition assembly 30 extending along an extending direction of the air duct 13; along a first preset direction, the partition assembly 30 divides the air duct 13 into at least two air duct sections 133; wherein, the first predetermined direction is perpendicular to the extending direction of the air duct 13.

In the air conditioner indoor unit, when the first cross flow fan 11 is in a working state and the second cross flow fan 12 is in a non-working state, air is discharged from the first ventilation opening and air is introduced from the second ventilation opening; when the second cross flow fan 12 is in a working state and the first cross flow fan 11 is in a non-working state, air is discharged from the second ventilation opening and air is supplied from the first ventilation opening, so that reversible air inlet and outlet are realized; this air conditioning indoor set sets up in at least one partition subassembly 30 through wind channel 13, and partition subassembly 30 extends along the extending direction of wind channel 13, can separate wind channel 13 for two at least wind channel sections 133 along first preset direction, outside air is extruded to wind channel 13 in through first vent or second vent, the wind channel broad of entrance and the circulation of air that just gets into wind channel 13 are disorderly, when being extruded by wind channel section 133, because wind channel section 133 narrows down, the air pulsation reduces, and the wind speed in wind channel section 133 accelerates, disorderly air will be changed into orderly air in the twinkling of an eye, flow out along wind channel section 133 and be carried in the room, thereby reduce the loss of inside amount of wind and increase air output of air conditioning indoor set, and the air-out is balanced.

Specifically, as shown in fig. 3, the x direction indicated by the arrow is a first preset direction, and the y direction indicated by the arrow is an extending direction of the air duct 13; the extending direction of the air duct 13 is also the air outlet direction of the air duct 13.

Wherein, the axial line of the first crossflow blower 11 and the axial line of the second crossflow blower 12 both extend along a first preset direction; for the wall-mounted air conditioner indoor unit, the first preset direction is the length direction of the wall-mounted air conditioner indoor unit.

As shown in fig. 1 to 3, the indoor unit of an air conditioner further includes a heat exchanger 20, the heat exchanger 20 is disposed in the air duct 13, and the first cross flow fan 11 and the second cross flow fan 12 are disposed on opposite sides of the heat exchanger 20.

As shown in fig. 1 to 3, at least a portion of the heat exchanger 20 is disposed obliquely to divide the air duct 13 into a first air duct 131 and a second air duct 132, and the first air duct 131 and the second air duct 132 are communicated with each other through the heat exchanger 20; the first air duct 131 is communicated with a first air inlet of the first through flow fan 11; the second air duct 132 is communicated with a second air inlet of the second cross-flow fan 12; the partition assembly 30 includes a first partition plate 31 and a second partition plate 32, the first partition plate 31 being disposed in the first air duct 131, the second partition plate 32 being disposed in the second air duct 132; the first partition plate 31 and the second partition plate 32 both extend in the air outlet direction of the air duct 13.

In one embodiment, the first partition plate 31 and the second partition plate 32 are aligned along the extending direction of the wind tunnel 13.

It should be noted that at least one first partition plate 31 divides the first air duct 131 into at least two first air duct sections, and at least one second partition plate 32 divides the second air duct 132 into at least two second air duct sections; the at least two first air duct sections and the at least two second air duct sections are arranged in one-to-one correspondence, and each first air duct section is flush with the corresponding second air duct section along the air outlet direction of the air duct 13, so that each first air duct section and the corresponding second air duct section form an air duct section 133.

In another embodiment, the first partition plate 31 and the second partition plate 32 are arranged in a staggered manner along the extending direction of the air duct 13.

As shown in fig. 3, the partition assembly 30 is plural, and the plural partition assemblies 30 are arranged at intervals along the first preset direction to partition the air duct 13 into plural air duct segments 133. At this time, an independent air duct section 133 is formed between the adjacent first partition plates 31 and between the adjacent second partition plates 32 to deliver the air volume.

As shown in fig. 3, in the first predetermined direction, the air duct section 133 has an air duct width; the duct section 133 has a constant duct width along the extending direction of the duct 13; the duct widths of the plurality of duct segments 133 are all equal. The arrangement further realizes the orderly air supply and the balance of air outlet.

The air duct section 133 has a constant air duct width along the extending direction of the air duct 13, that is, the air duct section 133 has an equal-width structure along the extending direction of the air duct 13.

In one embodiment, a projection of the first partition plate 31 perpendicular to the first predetermined direction is triangular; the projection plane of the second partition plate 32 perpendicular to the first predetermined direction is triangular. The arrangement realizes the optimization of the internal space arrangement of the air conditioner indoor unit.

In another embodiment, a projection of the first partition plate 31 perpendicular to the first predetermined direction is trapezoidal; the projection plane of the second partition plate 32 perpendicular to the first predetermined direction is trapezoidal.

As shown in fig. 1, the housing includes a bottom case member 40, and the first partition plate 31 is provided on the bottom case member 40.

In one embodiment, the first partition plate 31 includes a first partition plate body and a first noise reduction layer provided on the first partition plate body; wherein the first noise reduction layer is made of a sound absorbing material. The arrangement further reduces the sound of the air conditioner, so that the whole sound of the air conditioner is reduced, and better experience is brought to people; and the provision of the first partition plate main body ensures the mechanical strength of the first partition plate 31.

In another embodiment, the first partition plate 31 is made of a sound absorbing material, that is, the first partition plate 31 is entirely made of a sound absorbing material. The arrangement further reduces the sound of the air conditioner indoor unit, so that the whole sound of the air conditioner indoor unit is reduced, and better experience is brought to people.

As shown in fig. 4 to 7, the housing further includes a panel member, an insulating member 50 is provided on an inner side of the panel member, and the second partition plate 32 is provided on the insulating member 50.

Alternatively, the thermal insulation member 50 is made of a thermal insulation material, such as an EPP material (expanded polypropylene). The heat preservation piece 50 is used for preserving heat of the air duct 13 of the air-conditioning indoor unit, so that heat exchange loss of the air-conditioning indoor unit is reduced, and a display screen or an artistic picture matched with the heat preservation piece 50 is arranged on the outer side of the heat preservation piece 50.

In one embodiment, the second divider panel 32 includes a second divider panel body and a second noise reduction layer disposed on the second divider panel body; wherein the second noise reduction layer is made of a sound absorbing material. The arrangement further reduces the sound of the air conditioner indoor unit, so that the overall sound of the air conditioner indoor unit is reduced, and better experience is brought to people; and the provision of the second partition plate main body ensures the mechanical strength of the second partition plate 32.

In another embodiment, the second partition plate 32 is made of a sound absorbing material, i.e., the second partition plate 32 is entirely made of a sound absorbing material. The arrangement further reduces the sound of the air conditioner indoor unit, so that the whole sound of the air conditioner indoor unit is reduced, and better experience is brought to people.

As shown in fig. 3, the first partition plate 31 has a first gap with the heat exchanger 20; the second separator plate 32 has a second gap with the heat exchanger 20. The arrangement prevents the fins of the heat exchanger from being damaged due to the forced deformation of the heat exchanger, and the heat exchange performance of the indoor unit of the air conditioner is prevented from being influenced.

In specific implementation, the first partition plate 31 is detachably connected with the bottom shell component 40, and the second partition plate 32 is detachably connected with the heat preservation piece 50; after the first partition plate 31 is mounted on the bottom case member 40, the heat exchanger 20 is mounted on the bottom case member 40; the second partition plate 32 and the thermal insulation member 50 are integrally mounted, and then the second partition plate 32 and the thermal insulation member 50 are mounted on the bottom case member 40.

In the specific implementation, as shown in fig. 2, the arrows indicate the flow of air. When the indoor unit of the air conditioner is started and the condition of upper air inlet and lower air outlet (namely air inlet of the first air vent and air outlet of the second air vent) is selected, the first baffle plate of the bottom shell component is opened to open the first air supplement port arranged on the first cross flow fan 11 (increase the air inlet amount), the second baffle plate is closed to close the second air supplement port arranged on the second cross flow fan 12 (enhance the comfort of the air conditioner), when the cross flow fan blade of the second cross flow fan 12 rotates rapidly, the air outside the indoor unit of the air conditioner is extruded into the air channel through the first air vent due to the shape of the fan blade forming positive and negative pressure difference on two sides of the fan blade, the air channel at the inlet is wider, the air flow just entering the air channel is disordered, when the air is extruded into the independent air channel section 133 formed by the first partition plate 31 and the second partition plate 32, the possibility of air cross flow is reduced, and the air speed in the independent air channel section 133 is accelerated, the disordered air will be changed into orderly flowing air which flows to the second cross flow fan 12 along the independent air duct section 133 and then is delivered into the room; when disordered air enters the air channel and collides with the inner wall of the indoor unit of the air conditioner to generate sound, the sound is consumed in the indoor unit of the air conditioner by the first partition plate 31 and the second partition plate 32 made of sound-absorbing materials, and the sound cannot be transmitted to the outside along with the air flow; the comfort of the air-conditioning indoor unit is improved, and as shown in fig. 3, the schematic diagram of the internal air flow of the air-conditioning indoor unit during the upper air intake is shown. The above description is based on the situation of upper air inlet and lower air outlet of the indoor unit of the air conditioner, the indoor unit of the air conditioner can control the air inlet and the air outlet at will, the situation of the lower air inlet and the upper air outlet (namely the air outlet of the first air vent and the air inlet of the second air vent) is the same as the situation of the upper air inlet and the lower air outlet, and the difference is that the first baffle is closed to close the first air supplementing opening; the second baffle is opened to open the second air supply opening; the first through flow fan 11 rotates; the air duct 13 of the indoor unit of the air conditioner has the opposite flow direction of the internal air.

The application solves the following technical problems: the air output and air quantity of the double-through-flow double-air-port long air duct air conditioner are balanced; the noise problem of the double-through-flow long-air-duct air conditioner is reduced. It should be noted that the long air duct in the air conditioner with double cross-flow double-air-port long air ducts refers to the length of the air duct along the extending direction of the air duct, and is also the distance between two cross-flow fans.

The beneficial effect of this application: the air outlet needs to be divided into a plurality of air outlets by the partition plates, so that the air outlet is controlled to be balanced, the air flow crosstalk is reduced, the internal air quantity loss is reduced, and the air outlet quantity of the air conditioner is increased; the partition plate prevents the air in the air duct from generating large-area movement, reduces the noise generated by the collision of the air and the inner wall of the air conditioner, and reduces the noise of the air conditioner again by using the sound-absorbing material, so that the overall noise of the air conditioner is reduced, and better experience is brought to people.

The invention of the application lies in: when the indoor unit of the air conditioner works, when the cross-flow fan blade rotates rapidly, the flowing speed of air with positive and negative pressure difference is increased on two sides, air in all directions is oligomerized into a negative pressure space, the air flowing at the moment is uneven, the uneven air flowing is combed to be even by adding the separation component 30, and meanwhile, the sound generated by the back-and-forth movement of the air flowing unevenly, which collides the inner wall of the air conditioner, in an air duct is reduced; the first partition plate 31 and the second partition plate 32 of the partition assembly 30 adopt sound-absorbing materials to reduce the sound of the whole air conditioner again, so that people can enjoy the air conditioner with large air output, even air output and small sound.

From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects:

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

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

the air conditioner comprises a shell, a first air inlet and a second air inlet, wherein the first air inlet is positioned above the second air inlet;

the air duct component (10) comprises a first cross flow fan (11) and a second cross flow fan (12), and a first air outlet of the first cross flow fan (11) is communicated with the first ventilation opening; the second cross-flow fan (12) is arranged below the first cross-flow fan (11), and a second air outlet of the second cross-flow fan (12) is communicated with the second air vent so that air is fed into the air-conditioning indoor unit from the first air vent and is discharged from the second air vent, or air is fed into the air-conditioning indoor unit from the second air vent and is discharged from the first air vent; an air duct (13) is formed between the first cross flow fan (11) and the second cross flow fan (12);

at least one partition assembly (30) arranged in the air duct (13), the partition assembly (30) extending along the extension direction of the air duct (13); the separation assembly (30) separates the air duct (13) into at least two air duct sections (133) along a first preset direction; wherein the first preset direction is perpendicular to the extending direction of the air duct (13).

2. The indoor unit of claim 1, further comprising a heat exchanger (20), wherein the heat exchanger (20) is disposed in the air duct (13), and wherein the first cross flow fan (11) and the second cross flow fan (12) are disposed on opposite sides of the heat exchanger (20).

3. The indoor unit of claim 2, wherein at least a portion of the heat exchanger (20) is disposed obliquely to divide the air duct (13) into a first air duct (131) and a second air duct (132), and the first air duct (131) and the second air duct (132) are communicated with each other through the heat exchanger (20); the first air duct (131) is communicated with a first air inlet of the first through flow fan (11); the second air duct (132) is communicated with a second air inlet of the second cross flow fan (12).

4. An air conditioning indoor unit according to claim 3, wherein the partition member (30) includes a first partition plate (31) and a second partition plate (32), the first partition plate (31) being provided in the first air passage (131), the second partition plate (32) being provided in the second air passage (132); the first partition plate (31) and the second partition plate (32) both extend in the extending direction of the air duct (13).

5. The indoor unit of claim 4, wherein the first partition plate (31) and the second partition plate (32) are arranged in alignment along the direction of extension of the air duct (13); or

The first partition plate (31) and the second partition plate (32) are arranged in a staggered manner along the extending direction of the air duct (13).

6. The indoor unit of claim 4, wherein the partition member (30) is plural, and the plural partition members (30) are arranged at intervals along the first preset direction to partition the air duct (13) into plural air duct sections (133).

7. An indoor unit of an air conditioner according to claim 6, wherein, in the first preset direction, the air duct section (133) has an air duct width; the air duct section (133) has a constant air duct width along the extending direction of the air duct (13); the air duct sections (133) are all equal in air duct width.

8. The indoor unit of air conditioner according to claim 4, wherein the projection of the first partition plate (31) perpendicular to the first preset direction is triangular; the projection surface of the second partition plate (32) perpendicular to the first preset direction is triangular; or

The projection surface of the first partition plate (31) perpendicular to the first preset direction is in a trapezoid shape; and the projection surface of the second partition plate (32) perpendicular to the first preset direction is in a trapezoid shape.

9. The indoor unit of air conditioner according to claim 4, characterized in that the casing includes a bottom case member (40), and the first partition plate (31) is provided on the bottom case member (40).

10. The indoor unit of an air conditioner according to claim 4, wherein the first partition plate (31) includes a first partition plate main body and a first noise reduction layer provided on the first partition plate main body; wherein the first noise reduction layer is made of a sound absorbing material; or

The first partition plate (31) is made of a sound absorbing material.

11. The indoor unit of claim 9, wherein the casing further comprises a panel member, a heat insulating member (50) is provided on an inner side of the panel member, and the second partition plate (32) is provided on the heat insulating member (50).

12. The air conditioning indoor unit of claim 4, wherein the second partition plate (32) includes a second partition plate main body and a second noise reduction layer provided on the second partition plate main body; wherein the second noise reduction layer is made of a sound absorbing material; or

The second partition plate (32) is made of a sound absorbing material.

13. The air conditioning indoor unit of claim 4, wherein the first partition plate (31) has a first gap with the heat exchanger (20); a second gap is provided between the second partition plate (32) and the heat exchanger (20).

14. The indoor unit of air conditioning according to claim 11, characterized in that the first partition plate (31) is detachably connected to the bottom case member (40), and the second partition plate (32) is detachably connected to the heat insulating member (50); mounting the heat exchanger (20) on the bottom shell part (40) after the first partition plate (31) is mounted on the bottom shell part (40); then, the second partition plate (32) and the heat insulating member (50) which are integrally mounted are mounted on the bottom case member (40).