CN217082721U

CN217082721U - Indoor unit of air conditioner

Info

Publication number: CN217082721U
Application number: CN202221048555.XU
Authority: CN
Inventors: 赵现枫
Original assignee: Hisense Air Conditioning Co Ltd
Current assignee: Hisense Air Conditioning Co Ltd
Priority date: 2022-04-29
Filing date: 2022-04-29
Publication date: 2022-07-29
Anticipated expiration: 2032-04-29

Abstract

The utility model provides an indoor unit of air conditioner, include: the shell is provided with a first air outlet; a top plate; a base plate; a second volute; the first volute comprises a first volute tongue, a second volute tongue, a first guide plate and a second guide plate; the first guide plate is connected with the end part, close to the first air outlet, of the first volute tongue, and extends towards the direction close to the first air outlet and far away from the second volute; the second guide plate is connected with the end part, close to the first air outlet, of the second volute tongue, and extends towards the direction close to the first air outlet and far away from the second volute; the second volute tongue is far away from the second volute relative to the first volute tongue, and the second volute tongue, the second guide plate and the bottom plate are connected into a whole. The utility model discloses the air in well first spiral case is comparatively quick in second snail tongue and the flow of second guide plate department, sets up second snail tongue and second guide plate as an organic whole and can effectively reduce here because the unusual sound of wind channel such as expend with heat and contract with cold sound that assembly gap brought.

Description

Indoor unit of air conditioner

Technical Field

The utility model relates to an air conditioning technology field especially relates to an indoor unit of air conditioner.

Background

At present, the household appliance industry is in a situation of intense competition, each big competitive product has unique innovation in the aspects of functions, appearance and the like, and the product details are also important factors influencing the purchasing power of consumers. The volute tongue of the existing air-conditioning indoor unit deforms and has a gap near the original air channel of the volute, so that the problems of air outlet quantity reduction, poor sound quality, thermal barrier shrinkage sound and other abnormal sounds of the air channel exist.

In view of this, the present invention is proposed.

SUMMERY OF THE UTILITY MODEL

The utility model discloses solve one of the technical problem in the correlation technique at least to a certain extent.

Therefore, the application aims to provide the air conditioner indoor unit, so that the air quantity in the volute air channel is improved, and the air outlet noise is reduced.

In order to achieve the above object, the utility model provides an indoor unit of air conditioner, include:

the shell is provided with a first air outlet;

a top plate disposed within the housing;

a bottom plate disposed proximate a bottom of the housing relative to the top plate;

a second volute disposed between the top plate and the bottom plate;

the first volute and the second volute are arranged between the top plate and the bottom plate in parallel, and the first volute comprises a first volute tongue, a second volute tongue, a first flow guide plate and a second flow guide plate;

the first guide plate is connected with the end part, close to the first air outlet, of the first volute tongue, and extends towards the direction close to the first air outlet and far away from the second volute;

the second guide plate is connected with the end part, close to the first air outlet, of the second volute tongue, and extends towards the direction close to the first air outlet and far away from the second volute;

the second volute tongue is far away from the second volute relative to the first volute tongue, and the second volute tongue, the second guide plate and the bottom plate are connected into a whole.

This use is novel in because the structural feature in spiral case wind channel, the air in the first spiral case is comparatively quick in second spiral tongue and the flow of second guide plate department, sets up second spiral tongue and second guide plate as an organic whole and can effectively reduce here because the heat expansion and cold contraction sound such as the wind channel abnormal sound that assembly gap brought.

In some embodiments of the present application, the second volute is symmetrically disposed with respect to the first volute.

In some embodiments of the present application, the first volute tongue is connected to the top plate and integrally formed, the first baffle is connected to the bottom plate, and the first baffle, the second volute tongue, the second baffle and the bottom plate are connected to form an integrally formed arrangement.

In some embodiments of the present application, the first baffle and the first volute tongue are both connected to the top plate and are integrally formed.

In some embodiments of the present application, a second air outlet is disposed on the housing, and the second volute includes a third volute tongue, a fourth volute tongue, a third flow guide plate, and a fourth flow guide plate;

the third guide plate is connected with the end part, close to the second air outlet, of the third volute tongue, and the third guide plate extends towards the direction close to the second air outlet and far away from the first volute;

the fourth guide plate is connected with the end part, close to the second air outlet, of the fourth volute tongue, and extends towards the direction close to the second air outlet and far away from the first volute;

the fourth volute tongue is far away from the first volute relative to the third volute tongue, and the fourth volute tongue, the fourth guide plate and the bottom plate are connected into a whole.

In some embodiments of the present application, the housing is further provided with a first air inlet and a second air inlet, a first air duct and a second air duct are formed in the housing, the first air duct communicates the first air inlet and the first air outlet, a first heat exchanger and a first fan are disposed in the first air duct, and a portion of air enters the first air duct from the first air inlet, flows through the first heat exchanger, and is then driven by the first fan to flow to the first air outlet;

the second air duct is communicated with the second air inlet and the second air outlet, a second heat exchanger and a second fan are arranged in the second air duct, and partial air enters the second air duct from the second air inlet, flows through the second heat exchanger and then flows to the second air outlet through the second fan.

In some embodiments of the present application, the first fan and the second fan are cross-flow fans.

In some embodiments of the present application, the partition plate further includes a first connection portion, a second connection portion, and a third connection portion, the first connection portion is connected to the first volute tongue, the second connection portion is connected to the second volute tongue, and the third connection portion is connected to an end of the first heat exchanger or the second heat exchanger to partition the first air duct and the second air duct.

In some embodiments of the present application, the first fan and the second fan are fixed between the top plate and the bottom plate, and the shaft ends of the first fan and the second fan are connected with motors respectively fixed on the top plate and the bottom plate.

In some embodiments of the present application, a water pan is disposed at the bottom of the bottom plate, the first heat exchanger and the second heat exchanger are disposed on the water pan, and an installation space is disposed between the water pan and the bottom plate.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

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

Fig. 1 is a front view of an air conditioning indoor unit according to an embodiment of the present application;

fig. 2 is a first schematic assembly diagram of a first volute and a second volute of an indoor unit of an air conditioner according to an embodiment of the present disclosure;

fig. 3 is a second schematic assembly view of a first scroll and a second scroll of an indoor unit of an air conditioner according to an embodiment of the present application;

fig. 4 is a front view schematically illustrating assembly of first and second volutes of an indoor unit of an air conditioner according to an embodiment of the present application;

FIG. 5 is a cross-sectional view taken along line A-A of FIG. 4;

FIG. 6 is an isometric sectional view taken along line A-A of FIG. 4;

fig. 7 is an internal sectional view of an air conditioning indoor unit according to an embodiment of the present application;

fig. 8 is a first schematic connection diagram in which a top plate and a bottom plate of an indoor unit of an air conditioner according to some embodiments of the present application are integrally formed, respectively;

fig. 9 is a second schematic connection diagram of an air conditioning indoor unit according to some embodiments of the present application, in which a top plate and a bottom plate are integrally formed, respectively;

fig. 10 is a third schematic connection view of an upper plate and a lower plate of an indoor unit of an air conditioner according to some embodiments of the present application, which are integrally formed, respectively;

fig. 11 is a fourth schematic connection diagram in which a top plate and a bottom plate of an indoor unit of an air conditioner according to some embodiments of the present application are integrally formed, respectively;

fig. 12 is a first schematic connection diagram in which a top plate and a bottom plate of an indoor unit of an air conditioner according to other embodiments of the present application are integrally formed, respectively;

fig. 13 is a second schematic connection diagram of an air conditioning indoor unit according to another embodiment of the present application, in which a top plate and a bottom plate are integrally formed, respectively;

fig. 14 is a third schematic connection view of a top plate and a bottom plate of an indoor unit of an air conditioner according to another embodiment of the present application, which are integrally formed, respectively;

fig. 15 is a fourth schematic connection diagram of a top plate and a bottom plate of an air conditioning indoor unit according to another embodiment of the present application, which are integrally formed, respectively.

In the above figures: a housing 10; a first air outlet 11; a second air outlet 12; a first air duct 2 a; a first volute tongue 21; a second volute tongue 22; a third volute tongue 23; a fourth volute tongue 24; a second air duct 3 a; a first baffle 31; a second baffle 32; a third baffle 33; a fourth baffle 34; a first heat exchanger 41; a second heat exchanger 42; a first fan 51; a second fan 52; a motor 6; a bottom plate 7; a top plate 8; a water pan 9.

Detailed Description

The present invention will now be described in detail by way of exemplary embodiments. It should be understood, however, that elements, structures and features of one embodiment may be beneficially incorporated in other embodiments without further recitation.

In the present application, an air conditioner performs a refrigeration cycle of the air conditioner by using a compressor, a condenser, an expansion valve, and an evaporator. The refrigeration cycle includes a series of processes involving compression, condensation, expansion, and evaporation, and supplies refrigerant to the air that has been conditioned and heat-exchanged.

The compressor compresses a refrigerant gas in a high-temperature and high-pressure state and discharges the compressed refrigerant gas. The discharged refrigerant gas flows into the condenser. The condenser condenses the compressed refrigerant into a liquid phase, and heat is released to the surrounding environment through the condensation process.

The expansion valve expands the liquid-phase refrigerant in a high-temperature and high-pressure state condensed in the condenser into a low-pressure liquid-phase refrigerant. The evaporator evaporates the refrigerant expanded in the expansion valve and returns the refrigerant gas in a low-temperature and low-pressure state to the compressor. The evaporator can achieve a cooling effect by heat-exchanging with a material to be cooled using latent heat of evaporation of a refrigerant. The air conditioner can adjust the temperature of the indoor space throughout the cycle.

The air conditioner includes an indoor air conditioner and an outdoor air conditioner, the outdoor air conditioner refers to a portion of a refrigeration cycle including a compressor and an outdoor heat exchanger, the indoor air conditioner includes an indoor heat exchanger, and an expansion valve may be provided in the indoor or outdoor unit.

The indoor heat exchanger and the outdoor heat exchanger serve as a condenser or an evaporator. When the indoor heat exchanger is used as a condenser, the air conditioner is used as a heater for a heating mode, and when the indoor heat exchanger is used as an evaporator, the air conditioner is used as a cooler for a cooling mode.

Hereinafter, embodiments of the present application will be described in detail with reference to the accompanying drawings.

The air conditioner indoor unit according to the embodiment of the present application may be a double cross-flow floor cabinet, but the present application is not limited thereto.

Referring to fig. 1 to 15, an air conditioning indoor unit according to an embodiment of the present application includes a casing 10, a first scroll case, and a second scroll case. In this embodiment, the side of the indoor unit of the air conditioner facing the user when in use is the front side.

In the present embodiment, the casing 10 forms the overall appearance of the air conditioning indoor unit, which is generally cylindrical in the present embodiment, but may also be in the form of a solid cylinder, an irregular cylinder, or the like in other embodiments.

The casing 10 may include an air intake panel and a front panel, the air intake panel is connected to the rear side of the front panel, and the air intake panel and the front panel surround the appearance of the indoor unit of the air conditioner.

The air inlet panel is provided with a first air inlet and a second air inlet, the front panel is provided with a first air outlet 11 and a second air outlet 12, the first air inlet and the second air inlet can be in a grid hole form, and the first air outlet 11 and the second air outlet 12 can be in a long-strip rectangle form. Indoor air enters the housing 10 from the first air inlet and the second air inlet respectively, and is blown out from the first air outlet 11 and the second air outlet 12 respectively.

The first outlet 11 and the second outlet 12 are respectively provided with a rotatable air deflector to open/close the first outlet 11 and the second outlet 12.

A first volute and a second volute are arranged in the housing 10, and the first volute and the second volute are symmetrically arranged in the housing 10. The first volute comprises a first volute tongue 21, a first flow guide plate 31, a second volute tongue 22 and a second flow guide plate 32. The first baffle 31 is connected to an end portion of the first volute tongue 21 close to the first air outlet 11, the first baffle 31 is disposed between the first air outlet 11 and the first volute tongue 21, the first baffle 31 extends towards a direction close to the first air outlet 11 and away from the second volute, that is, the first air outlet 11 is disposed in an extending direction of the first baffle 31.

The second volute comprises a third volute tongue 23, a third baffle 33, a fourth volute tongue 24 and a fourth baffle 34. The third flow guide plate 33 is connected to an end portion of the third volute tongue 23 close to the second air outlet 12, the third flow guide plate 33 is disposed between the second air outlet 12 and the third volute tongue 23, the third flow guide plate 33 extends towards a direction close to the second air outlet 12 and away from the first volute, that is, the second air outlet 12 is disposed in an extending direction of the third flow guide plate 33.

A first air duct 2a is formed in the first volute, and the first air duct 2a is communicated with a first air inlet and a first air outlet 11. A first fan 51 and a first heat exchanger 41 are disposed in the first air duct 2a, the first heat exchanger 41 is disposed between the first air intake opening and the first fan 51, the first heat exchanger 41 is disposed on an air moving path from the first air intake opening to the first air outlet 11, and the first heat exchanger 41 is configured to absorb heat from air introduced into the first air intake opening or transfer heat to air.

The first fan 51 serves to blow air so that indoor air can flow from the first intake port to the first outtake port 11. In the present embodiment, the first fan 51 is provided as a cross flow fan.

The second volute tongue 22 is far away from the second volute casing relative to the first volute tongue 21, and both the second volute tongue 22 and the first volute tongue 21 are curved plates so as to reduce the resistance to the air flow in the air duct. The fourth volute tongue 24 is far away from the first volute relative to the third volute tongue 23, and both the fourth volute tongue 24 and the third volute tongue 23 are curved plates so as to reduce the resistance to the air flow in the air duct.

The end part of the second volute tongue 22 close to the first air outlet 11 is connected with a second flow guide plate 32, and the second flow guide plate 32 is in smooth transition connection with the second volute tongue 22 so as to reduce the resistance to the air flow in the air duct. The second air deflector 32 extends toward the first air outlet 11 along the air outlet direction of the end of the first air duct 2a close to the first air outlet 11. The air outlet range of the first air outlet 11 of the air-conditioning indoor unit of the embodiment is limited between the first flow guide plate 31 and the second flow guide plate 32; the end part of the fourth volute tongue 24 close to the second air outlet 12 is connected with a fourth flow guide plate 34, and the fourth flow guide plate 34 and the fourth volute tongue 24 are in smooth transition connection so as to reduce the resistance to the air flow in the air duct. The fourth baffle 34 extends toward the second air outlet 12 along the air outlet direction of the second air duct 3a near the end of the second air outlet 12. The air outlet range of the second air outlet 12 of the air conditioning indoor unit of the present embodiment is limited between the third flow guide plate 33 and the fourth flow guide plate 34.

The first fan 51 is disposed between the first volute tongue 21 and the second volute tongue 22, and under the forced convection action of the first fan 51, after the indoor air enters the casing 10 from the first air inlet and exchanges heat with the first heat exchanger 41, the air after exchanging heat in the first air duct 2a is blown out from the first air outlet 11 along the first air guide plate 31.

A second air duct 3a is formed in the second volute, and the second air duct 3a is communicated with a second air inlet and a second air outlet 12. A second fan 52 and a second heat exchanger 42 are disposed in the second air duct 3a, the second heat exchanger 42 is disposed between the second air inlet and the second fan 52, the second fan 52 is disposed on an air moving path from the second air inlet to the second air outlet 12, and the second heat exchanger 42 is used for absorbing heat from air introduced into the second air inlet or transferring heat to air.

The second fan 52 is used to blow air so that indoor air can flow from the second intake opening to the second outlet opening 12. In the present embodiment, the second fan 52 is provided as a cross flow fan.

The second fan 52 is disposed between the third volute tongue 23 and the fourth volute tongue 24, and under the forced convection action of the second fan 52, after the indoor air enters the casing 10 from the second air inlet and exchanges heat with the second heat exchanger 42, the air after exchanging heat in the second air duct 3a is blown out from the second air outlet 12 along the third air guide plate 33.

The water tray 9 is disposed below the first and

second heat exchangers

41 and 42 to collect moisture condensed in the first and

second heat exchangers

41 and 42. The drip tray 9 may be connected to a drain pipe extending to the outside of the case 10, thereby discharging condensed water to the outside of the case 10.

In this embodiment, the air conditioning indoor unit further includes a top plate 8 and a bottom plate 7, and the first volute tongue 21, the second volute tongue 22, the first air guide plate 31, and the second air guide plate 32 are all disposed between the top plate 8 and the bottom plate 7 and connected to the top plate 8 and the bottom plate 7 to form a first volute and a first air duct 2 a; the second volute tongue 22 is far away from the second volute relative to the first volute tongue 21, specifically, due to the structural characteristics of the volute through-flow air duct, air flows at the structural positions of the second volute tongue 22 and the second guide plate 32 relatively quickly, the second volute tongue 22, the second guide plate 32 and the bottom plate 7 are connected into a whole, and abnormal sounds of the air duct, such as expansion and contraction sounds, caused by the assembly gaps among the second volute tongue 22, the second guide plate 32 and the bottom plate 7 can be effectively reduced. The second volute tongue 22, the second guide plate 32 and the bottom plate 7 are connected into a whole, so that the generation of a connecting gap is avoided, the air quantity is improved, and the quality of outlet air sound is prevented from being poor.

The third volute tongue 23, the fourth volute tongue 24, the third flow guide plate 33 and the fourth flow guide plate 34 are also arranged between the top plate 8 and the bottom plate 7 and connected with the top plate 8 and the bottom plate 7 to form a second volute and a second air duct 3 a. The fourth volute tongue 24 is arranged remote from the first volute with respect to the third volute tongue 23. Specifically, due to the structural characteristics of the volute through-flow air duct, air flows at the structural positions of the fourth volute tongue 24 and the fourth guide plate 34 relatively quickly, the fourth volute tongue 24, the fourth guide plate 34 and the bottom plate 7 are connected into a whole, and abnormal sounds of the air duct, such as expansion and contraction sounds, caused by assembly gaps among the fourth volute tongue 24, the fourth guide plate 34 and the bottom plate 7 when air flows through the air duct can be effectively reduced. The fourth volute tongue 24, the fourth guide plate 34 and the bottom plate 7 are connected into a whole, so that the generation of a connecting gap is avoided, the air quantity is improved, and the quality of outlet air sound is prevented from being poor.

In some embodiments, the first volute tongue 21 is connected to the top plate 8 and is integrally formed with the top plate 8, and the third volute tongue 23 is connected to the top plate 8 and is integrally formed with the top plate 8. The assembly clearance between the first volute tongue 21 and the top plate 8 and between the third volute tongue 23 and the top plate 8 can be reduced, the air quantity is improved, and the noise is reduced.

In some embodiments, the first baffle 31 is connected to the bottom plate 7, and the first baffle 31, the second volute tongue 22, the second baffle 32 and the bottom plate 7 are connected to be integrally formed, so that the assembly gap between the first baffle 31 and the bottom plate 7 can be reduced, the air volume can be increased, and the noise can be reduced.

In some embodiments, the third baffle 33 is connected to the bottom plate 7, and the third baffle 33, the fourth volute tongue 24, the fourth baffle 34 and the bottom plate 7 are connected to be integrally formed, so that the assembly gap between the third baffle 33 and the bottom plate 7 can be reduced, the air volume can be increased, and the noise can be reduced.

In some embodiments, the first volute tongue 21 and the first baffle 31 are provided separately, and the third volute tongue 23 and the third baffle 33 are provided separately. The mould opening difficulty of the mould can be reduced, and the assembly flexibility among all parts is improved.

In some embodiments, the first and

third worm tongues

21 and 23 are integrally connected, so that the mold opening cost can be reduced, and the first and

third worm tongues

21 and 23 can be more conveniently assembled.

In some embodiments, the first baffle 31 and the first volute tongue 21 are both connected to the top plate 8 and are integrally formed. The assembly gap between the first guide plate 31 and the first volute tongue 21 can be reduced, the air quantity flowing through the first guide plate 31 and the first volute tongue 21 can be improved, and the noise can be reduced.

In some embodiments, the third baffle 33 and the third volute tongue 23 are both connected to the top plate 8 and are integrally formed. The assembly gap between the third guide plate 33 and the third volute tongue 23 can be reduced, the air quantity flowing through the third guide plate 33 and the third volute tongue 23 is improved, and the noise is reduced.

In this embodiment, the first fan 51 and the second fan 52 are fixed in the first air duct 2a and the second air duct 3a between the top plate 8 and the bottom plate 7, respectively, both the first fan 51 and the second fan 52 are cross-flow fans, the central axes of the first fan 51 and the second fan 52 are arranged in parallel, and the central axes of the first fan 51 and the second fan 52 are in the same direction as the height direction of the indoor unit of the air conditioner.

The motors 6 are connected to both ends of the first fan 51 and the second fan 52 in the axial direction, and the motors 6 are fixed to the top plate 8 and the bottom plate 7, respectively, so as to prevent the first fan 51 and the second fan 52 from shaking when rotating due to the fact that only one end of each fan is connected to the motor 6. Installation spaces are arranged between the motor 6 and the bottom plate 7 which are respectively positioned at the bottom ends of the first fan 51 and the second fan 52, so that condensed water flowing down on the heat exchanger is prevented from gathering on the bottom plate 7 and contacting with the motor 6, and the motor 6 is prevented from being damaged by electric leakage risk.

The air conditioner indoor unit of the embodiment is further provided with a partition board, the partition board is formed by connecting a first connecting portion, a second connecting portion and a third connecting portion which extend towards three directions, wherein the first connecting portion is connected with one end, close to the first air inlet, of the first volute tongue 21, the second connecting portion is connected with one end, close to the second air inlet, of the second volute tongue 22, the third connecting portion is connected with the end portion of the first heat exchanger 41 or the second heat exchanger 42 to separate the first air duct 2a from the second air duct 3a, and air flow in the first air duct 2a and the second air duct 3a is prevented from flowing mutually, so that air quantity loss is reduced, and air outlet efficiency is improved.

In some embodiments, the indoor unit of the air conditioner can further comprise a fresh air component for introducing outdoor fresh air into the room.

The fresh air component is arranged below the volute, and in other embodiments, the fresh air component can also be arranged above the volute.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

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

In the present application, the terms "first", "second", "third" and "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any indication of the number of technical features indicated. Thus, features defined as "first", "second", "third", "fourth" may explicitly or implicitly include one or more of the features.

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

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

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims

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

the shell is provided with a first air outlet;

a top plate disposed within the housing;

a second volute disposed between the top plate and the bottom plate;

2. An indoor unit of an air conditioner according to claim 1, wherein the second scroll casing is disposed symmetrically with respect to the first scroll casing.

3. An indoor unit of an air conditioner according to claim 1, wherein the first volute tongue is connected to the top plate and integrally formed, the first guide plate is connected to the bottom plate, and the first guide plate, the second volute tongue, the second guide plate and the bottom plate are integrally formed.

4. An indoor unit of an air conditioner according to claim 1, wherein the first baffle and the first volute tongue are connected to the top plate and integrally formed.

5. An indoor unit of an air conditioner according to claim 1, wherein a second air outlet is provided in the casing, and the second scroll casing includes a third scroll tongue, a fourth scroll tongue, a third flow guide plate, and a fourth flow guide plate;

6. The indoor unit of claim 5, wherein the casing is further provided with a first air inlet and a second air inlet, a first air duct and a second air duct are formed in the casing, the first air duct communicates the first air inlet and the first air outlet, a first heat exchanger and a first fan are arranged in the first air duct, and a part of air enters the first air duct from the first air inlet, flows through the first heat exchanger, and then flows to the first air outlet through the first fan;

7. An indoor unit of an air conditioner according to claim 6, wherein the first fan and the second fan are cross-flow fans.

8. An indoor unit of an air conditioner according to claim 6, further comprising a partition plate including a first connection part connected to the first scroll tongue, a second connection part connected to the second scroll tongue, and a third connection part connected to an end of the first heat exchanger or the second heat exchanger to partition the first duct and the second duct.

9. An indoor unit of an air conditioner according to claim 6, wherein the first fan and the second fan are fixed between the top plate and the bottom plate, and shaft ends of the first fan and the second fan are connected with motors fixed to the top plate and the bottom plate, respectively.

10. An indoor unit of an air conditioner as claimed in claim 6, wherein a water pan is provided at a bottom of the base plate, the first heat exchanger and the second heat exchanger are provided on the water pan, and an installation space is provided between the water pan and the base plate.