CN211146692U

CN211146692U - Indoor unit and air conditioner

Info

Publication number: CN211146692U
Application number: CN201921459890.7U
Authority: CN
Inventors: 杨俊山; 李芊; 龙从辉; 成凯; 贾冰冰; 罗永前; 杨永祥; 黄煜鹏; 陈圣文
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2019-09-02
Filing date: 2019-09-02
Publication date: 2020-07-31
Anticipated expiration: 2029-09-02

Abstract

The utility model provides an indoor unit and air conditioner. The indoor unit comprises a shell and a heat exchanger, wherein the heat exchanger is arranged in the shell and divides the shell into a first cavity and a second cavity; the fresh air device is connected with the shell and provided with a plurality of fresh air channels, one of the fresh air channels is communicated with the first cavity, and the other fresh air channel is communicated with the second cavity. Set the new trend device to the structure that has a plurality of new trend passageways, set up like this and can effectively increase the new trend volume that the new trend got into the inside new trend of casing for indoor air is more fresh. Meanwhile, the fresh air channel is directly communicated with the first cavity and the second cavity, so that fresh air can be discharged out of the shell after heat exchange through the heat exchanger when entering the other cavity, the fluctuation of indoor temperature is reduced, and the heat exchange efficiency of the indoor unit can be effectively improved by the arrangement.

Description

Indoor unit and air conditioner

Technical Field

The utility model relates to an air conditioner equipment technical field particularly, relates to an indoor unit and air conditioner.

Background

With the progress of science and technology and the development of society, the demand of substances is not a focus of people's life, and the quality of life is improved, so that people can live healthily. Of these, there is a high concern about how to breathe healthy fresh air. However, this situation once contradicts the air conditioner because the prior air conditioner requires heat exchange in a closed space, but air pollution cannot be avoided in the closed space. Therefore, a new air conditioner function, namely fresh air, appears.

At present, however, the fresh air system of the existing wall-mounted air conditioner indoor unit does not pass through the evaporator, and fresh air introduced from outside is directly blown into the room through the filter screen, so that the heat exchange efficiency of the air conditioner is reduced. Moreover, most air conditioners with fresh air functions have only one-level fresh air system, so that the fresh air quantity is low and the efficiency is low.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides an indoor unit and air conditioner to solve the few problem of the new amount of wind among the prior art.

In order to achieve the above object, according to an aspect of the present invention, there is provided an indoor unit, including: a housing; the heat exchanger is arranged in the shell and divides the shell into a first cavity and a second cavity; the fresh air device is connected with the shell and provided with a plurality of fresh air channels, one of the fresh air channels is communicated with the first cavity, and the other fresh air channel is communicated with the second cavity.

Further, new trend device includes: the air duct part is provided with a plurality of fresh air channels; the fan portion sets up in wind channel portion, and the fan portion is a plurality of, and a plurality of fan portions set up with a plurality of new trend passageway one-to-one.

Further, a plurality of new trend passageways include first new trend passageway and second new trend passageway, and a plurality of fan portions include first fan portion and second fan portion, and wind channel portion includes: the air duct volute is arranged close to one side of the first cavity and one side of the second cavity, a first fresh air channel is arranged at the first end of the air duct volute and communicated with the first cavity, a second fresh air channel is arranged at the second end of the air duct volute and communicated with the second cavity, a first fan portion is arranged in the first end of the air duct volute and close to the first fresh air channel, and a second fan portion is arranged in the second end of the air duct volute and close to the second fresh air channel.

Further, the air channel portion further includes: the air channel cover plate is connected with the air channel volute, the air channel cover plate and the air channel volute are enclosed to form a ventilation channel, a fresh air port communicated with the outside is formed in the end portion of the air channel cover plate, and fresh air is introduced into the shell through the fresh air port by the first fan portion and the second fan portion.

Further, new trend device still includes: the filter screen is arranged between the air duct cover plate and the fan part.

Further, the first fan section and the second fan section are independently controlled.

Further, the indoor unit further includes: and the steam generating device is arranged in the shell and is used for spraying steam into the first cavity and the second cavity.

Further, the steam generating apparatus includes: the water tank is arranged adjacent to the fresh air device, a steam channel is arranged on the side wall of the water tank facing the first cavity, and the steam channel is communicated with the first cavity; the first cavity is arranged in the water tank; and the driver is connected with the electrostatic ion atomizer and is used for controlling the electrostatic ion atomizer to be in a working state or a non-working state.

Furthermore, the first cavity is provided with an upper air outlet channel, the second cavity is provided with a lower air outlet channel, and an outlet of the steam channel is positioned on the side wall of the upper air outlet channel.

Further, the indoor unit further includes: the first through-flow fan blade is arranged in the first cavity, and the rotation direction of the first through-flow fan blade is adjustably arranged; and the first cross-flow fan blade and the second cross-flow fan blade are independently controlled.

Furthermore, the first fresh air channel and the second fresh air channel are located between the first cross-flow fan blade and the second cross-flow fan blade.

Further, the fan portion includes: a centrifugal fan blade; the output shaft of the direct current motor is connected with the centrifugal fan blade; the motor mounting bracket is connected with the direct current motor and arranged in the air duct part.

According to the utility model discloses an on the other hand provides an air conditioner, including the indoor set, the indoor set is foretell indoor set.

Use the technical scheme of the utility model, set the new trend device to the structure that has a plurality of new trend passageways, set up the volume that can effectively increase the new trend and get into the inside new trend of casing like this for indoor air is fresher more. Meanwhile, the fresh air channel is directly communicated with the first cavity and the second cavity, so that fresh air can be discharged out of the shell after heat exchange through the heat exchanger when entering the other cavity, the fluctuation of indoor temperature is reduced, and the heat exchange efficiency of the indoor unit can be effectively improved by the arrangement.

Drawings

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

figure 1 shows a schematic structural view of a first embodiment of an indoor unit according to the present invention;

figure 2 shows a schematic structural view of a second embodiment of the indoor unit according to the present invention;

figure 3 shows a schematic view of the explosion structure of a third embodiment of the indoor unit according to the present invention;

figure 4 shows a schematic cross-sectional view of a fourth embodiment of an indoor unit according to the invention.

Wherein the figures include the following reference numerals:

10. a housing; 11. a first cavity; 111. an upper air outlet channel; 12. a second cavity; 112. a lower air outlet channel;

20. a heat exchanger;

30. a fresh air device; 31. a first fresh air channel; 32. a second fresh air channel; 33. a first fan section; 34. a second fan section; 35. an air duct volute; 36. an air duct cover plate; 361. a fresh air port; 37. a filter screen;

40. a steam generating device; 41. a water tank; 411. a steam channel; 42. an electrostatic ion atomizer; 43. a driver;

51. a first through flow fan blade; 52. a second cross-flow fan blade;

61. a centrifugal fan blade; 62. a direct current motor; 63. a motor mounting bracket;

70. a panel.

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 accompanying drawings in conjunction with embodiments.

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.

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 terms so used are 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.

Exemplary embodiments according to the present application will now be described in more detail with reference to the accompanying drawings. These exemplary embodiments may, however, be embodied in many different forms and should not be construed as limited to only the embodiments set forth herein. It is to be understood that these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art, in the drawings, it is possible to enlarge the thicknesses of layers and regions for clarity, and the same devices are denoted by the same reference numerals, and thus the description thereof will be omitted.

Referring to fig. 1 to 4, according to an embodiment of the present application, an indoor unit is provided.

Specifically, the indoor unit includes a casing 10, a heat exchanger 20, and a fresh air device 30. The heat exchanger 20 is disposed in the casing 10 to divide the casing 10 into the first cavity 11 and the second cavity 12. The fresh air device 30 is connected with the shell 10, the fresh air device 30 is provided with a plurality of fresh air channels, one of the fresh air channels is communicated with the first cavity 11, and the other fresh air channel is communicated with the second cavity 12.

In this embodiment, set the new trend device to the structure that has a plurality of new trend passageways, set up the volume that can effectively increase the new trend and get into the inside new trend of casing like this for indoor air is more fresh. Meanwhile, the fresh air channel is directly communicated with the first cavity and the second cavity, so that fresh air can be discharged out of the shell after heat exchange through the heat exchanger when entering the other cavity, the fluctuation of indoor temperature is reduced, and the heat exchange efficiency of the indoor unit can be effectively improved by the arrangement.

The fresh air device 30 includes an air duct portion and a blower portion. A plurality of new trend passageways are seted up on wind channel portion. The fan portion sets up in wind channel portion, and the fan portion is a plurality of, and a plurality of fan portions set up with a plurality of new trend channels one-to-one. The corresponding fresh air channel can be controlled to intake fresh air according to the requirement by the arrangement.

Specifically, as shown in fig. 3 and 4, the plurality of fresh air channels include a first fresh air channel 31, a second fresh air channel 32, and a duct cover 36. The plurality of fan sections include a first fan section 33 and a second fan section 34. The air duct portion includes an air duct volute 35. The duct volute 35 is disposed near one side of the first chamber 11 and the second chamber 12. The first end of the air duct volute 35 is provided with a first fresh air channel 31, and the first fresh air channel 31 is communicated with the first cavity 11. A second fresh air channel 32 is arranged at a second end of the air duct volute 35, and the second fresh air channel 32 is communicated with the second cavity 12. The first fan section 33 is disposed within a first end of the duct volute 35 and adjacent the first fresh air channel 31. A second fan section 34 is disposed within a second end of the duct volute 35 and adjacent the second fresh air channel 32. The air duct cover plate 36 is connected with the air duct volute 35, the air duct cover plate 36 and the air duct volute 35 enclose a ventilation channel, a fresh air opening 361 communicated with the outside is arranged at the end part of the air duct cover plate 36, and fresh air is introduced into the shell 10 through the fresh air opening 361 by the first fan part 33 and the second fan part 34. Set up like this and can improve this new trend device's stability and reliability effectively.

In order to prevent external dust from entering the indoor unit along with fresh air, the fresh air device 30 further includes a filter screen 37. The filter screen 37 is disposed between the air duct cover 36 and the fan unit. Wherein, the filter screen can be a block structure, also can be a monoblock structure.

The first fan section 33 and the second fan section 34 are independently controlled. The practicality that can improve new trend device effectively sets up like this.

As shown in fig. 3, the indoor unit further includes a steam generator 40. The steam generating device 40 is disposed in the housing 10, and the steam generating device 40 is used for spraying steam into the first cavity 11 and the second cavity 12. Set up like this and can realize carrying out the humidification to indoor dry air, improved user's use and experienced.

Specifically, as shown in fig. 3 and 4, the steam generating device 40 includes a water tank 41, an electrostatic ion atomizer 42, and a driver 43. The water tank 41 is disposed adjacent to the fresh air device 30, and a steam channel 411 is disposed on a side wall of the water tank 41 facing the first cavity 11. The steam passage 411 communicates with the first chamber 11. The first cavity 11 is arranged in the water tank; the driver 43 is connected to the electrostatic atomizer 42, and the driver 43 is used for controlling the electrostatic atomizer 42 to be in an operating state or a non-operating state. The arrangement can reduce the production cost of the steam generator and improve the use experience of users.

As shown in fig. 4, the first chamber 11 has an upper air outlet channel 111. The second chamber 12 has a lower outlet channel 112, and the outlet of the steam channel 411 is located on the sidewall of the upper outlet channel 111. Set up like this and make steam generator produce vapor can be timely beat indoor, avoid the problem that vapor dwell time is long in the air-out passageway.

The indoor unit further comprises a first cross-flow fan blade 51 and a second cross-flow fan blade 52. The first through-flow fan blade 51 is disposed in the first cavity 11, and the rotation direction of the first through-flow fan blade 51 is adjustably set, so that the first through-flow fan blade 51 can be controlled to rotate forward and backward. The second cross-flow fan blade 52 is arranged in the second cavity 12, the rotation direction of the second cross-flow fan blade 52 is adjustable, that is, the second cross-flow fan blade 52 can be controlled to rotate forwards and backwards, and the first cross-flow fan blade 51 and the second cross-flow fan blade 52 are controlled independently. The arrangement enables a user to start the corresponding through-flow fan blade to supply air or intake air according to the required air quantity, and improves the practicability of the indoor unit.

Preferably, as shown in fig. 4, the first fresh air channel 31 and the second fresh air channel 32 are located between the first cross-flow fan 51 and the second cross-flow fan 52. Set up like this and can just discharge outside the casing after can both carrying out the heat transfer through the heat exchanger at first when can both blow the new trend in the casing to another cavity from a cavity through first new trend passageway 31 and second new trend passageway 32. Certainly, when the fresh air volume needs to be increased, the fresh air can enter the shell from the first fresh air channel 31 and the second fresh air channel 32 at the same time, and at the moment, partial fresh air can be allowed to be directly discharged to the indoor along with the air flow without heat exchange with the heat exchanger, so that the purpose of increasing the indoor fresh air is achieved.

The fan part comprises a centrifugal fan blade 61, a direct current motor 62 and a motor mounting bracket 63. The output shaft of the direct current motor 62 is connected with the centrifugal fan blade 61. The dc motor 62 is connected to a motor mounting bracket 63, and the motor mounting bracket 63 is disposed in the air duct portion. The air inlet volume and the stability of the fresh air device can be increased by the arrangement.

The indoor set in the above-mentioned embodiment can also be used to air conditioner equipment technical field, promptly according to the utility model discloses a further aspect provides an air conditioner, including the indoor set, the indoor set is the indoor set in the above-mentioned embodiment.

According to another aspect of the present invention, there is provided a method for controlling an air conditioner in the above embodiments, the method comprising the steps of:

the air conditioner has a refrigeration mode and a heating mode, when the air conditioner is in the refrigeration mode, the upper air outlet channel 111 outputs air, the lower air outlet channel 112 inputs air, the second fan part 34 is controlled to operate to introduce fresh air into the second cavity 12, and the fresh air is blown out of the shell 10 through the upper air outlet channel 111 after exchanging heat with the heat exchanger 20; when the air conditioner is in the heating mode, air is supplied into the upper air outlet channel 111, air is supplied out of the lower air outlet channel 112, the operation of the first fan unit 33 is controlled to introduce fresh air into the first cavity 11, and the fresh air is blown out of the casing 10 through the lower air outlet channel 112 after being subjected to heat exchange with the heat exchanger 20.

In another embodiment of the present application, when the air conditioner is in the cooling mode or the heating mode, the first and second blower parts 33 and 34 are rotated simultaneously. Set up like this and can improve the air inlet efficiency of new trend.

When the air conditioner is in a cooling mode, the first through-flow fan blade 51 rotates and blows air to the outside of the shell 10, and the second through-flow fan blade 52 stops rotating, or when the air conditioner is in the cooling mode, the first through-flow fan blade 51 rotates and blows air to the outside of the shell 10, and the second through-flow fan blade 52 rotates to suck air to the inside of the second cavity 12. When the air conditioner is in a heating mode, the second cross-flow fan blade 52 rotates and blows air to the outside of the shell 10, the first cross-flow fan blade 51 stops rotating, or when the air conditioner is in a cooling mode, the second cross-flow fan blade 52 rotates and blows air to the outside of the shell 10, and the first cross-flow fan blade 51 rotates to suck air into the first cavity 11.

Specifically, adopt the air conditioner of this application, have doublestage new trend system, increase the fresh air volume effectively, adopt new trend and heat exchanger to carry out the heat transfer, improve new trend heat exchange efficiency, wherein the heat exchanger is the evaporimeter. Compared with the common air conditioner, the air conditioner can improve the reduced air quality after the air conditioner is opened for a long time in the closed space, avoid the symptoms of chest distress, dizziness and the like caused by the fact that a human body stays in the closed environment for a long time and can also improve the sleep quality. The new trend system of this air conditioner possess two direct current motor drive's centrifugal fan blade and carry out the outside fresh air guide of room, but adopt doublestage new trend system greatly increased fresh air volume, and the overall arrangement structure that new trend structure combines the evaporimeter carries out brand-new overall arrangement, and under the mode of heating, the new trend way is opened in the air supply of carpet formula, and the new trend is through the evaporimeter heat transfer, avoids the air-out cold and hot mixture, improves the comfortable nature of air conditioner and experiences. Similarly, in the refrigeration mode, the air is supplied in a shower mode, and the lower fresh air channel is opened. Meanwhile, the upper and lower fresh air ducts can be opened to increase fresh air volume.

The centrifugal fan blade driven by the direct current motor guides fresh air outside the chamber to enter the chamber after passing through the filter screen, so that the effect of indoor ventilation is achieved. And the air outlet of the fresh air channel is arranged at the upper end and the lower end of the evaporator, so that fresh air can exchange heat through the evaporator while exchanging air indoors, and the heat exchange efficiency of the air conditioner when the fresh air is started is improved.

As shown in fig. 1 and 4, the two-stage fresh air conditioner indoor unit comprises a humidifying module, a fresh air rear cover, a filter screen, centrifugal blades, a bottom shell component, a motor mounting bracket, a direct current motor, an upper fresh air pipeline, a lower fresh air pipeline, a panel 70 and the like. Wherein the fresh air module is installed on the left side of the bottom shell component, and the fresh air channel is led to the outdoor side from the back of the air conditioner. The fresh air pipeline at the indoor side is divided into an upper side and a lower side which are distributed at the left end of the evaporator.

When the fresh air ventilating device works, the centrifugal fan blades in the fresh air module are started to drive air outside the room to enter the fresh air pipeline, and the outdoor fresh air enters the room after impurities such as dust are removed through the filter screen, so that the ventilating function is achieved. In the refrigeration mode, the upper air outlet of the indoor air conditioner starts shower type air supply, and the lower through-flow fan blade rotates reversely at the same time to play an auxiliary air inlet role. At the moment, the fresh air function is started, the lower centrifugal fan in the fresh air module works, the lower air inlet of the fresh air module supplies air, and the fresh air is blown out from the upper air inlet after passing through the evaporator, as shown in fig. 4. If the fresh air quantity is selected to be continuously increased, the upper centrifugal fan and the lower centrifugal fan in the fresh air module work simultaneously, the upper air opening and the lower air opening of the fresh air module supply air simultaneously, the fresh air exchange efficiency is improved, and the heating mode is the same.

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.

In addition to the foregoing, it should be noted that reference throughout this specification to "one embodiment," "another embodiment," "an embodiment," or the like, means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment described generally throughout this application. The appearances of the same phrase in various places in the specification are not necessarily all referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with any embodiment, it is submitted that it is within the scope of the invention to effect such feature, structure, or characteristic in connection with other embodiments.

In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.

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, comprising:

a housing (10);

a heat exchanger (20), the heat exchanger (20) being arranged within the housing (10) to divide the housing (10) into a first cavity (11) and a second cavity (12);

the fresh air device (30), the fresh air device (30) with casing (10) are connected, fresh air device (30) have a plurality of new trend passageways, and it is a plurality of one in the new trend passageway with first cavity (11) are linked together, and it is a plurality of another in the new trend passageway with second cavity (12) are linked together.

2. Indoor unit according to claim 1, characterized in that the fresh air device (30) comprises:

the air channel part is provided with a plurality of fresh air channels;

the fan portion sets up in the wind channel portion, the fan portion is a plurality of, and is a plurality of the fan portion sets up with a plurality of new trend passageway one-to-one.

3. The indoor unit of claim 2, wherein the plurality of fresh air channels include a first fresh air channel (31) and a second fresh air channel (32), the plurality of fan sections include a first fan section (33) and a second fan section (34), and the air duct section includes:

an air duct volute (35), the air duct volute (35) is close to one side of the first cavity (11) and the second cavity (12) and is arranged, a first end of the air duct volute (35) is provided with the first fresh air channel (31), the first fresh air channel (31) is communicated with the first cavity (11), a second end of the air duct volute (35) is provided with the second fresh air channel (32), the second fresh air channel (32) is communicated with the second cavity (12), the first fan portion (33) is arranged in the first end of the air duct volute (35) and close to the first fresh air channel (31) and is arranged, and the second fan portion (34) is arranged in the second end of the air duct volute (35) and close to the second fresh air channel (32).

4. The indoor unit according to claim 3, wherein the air duct portion further includes:

air duct apron (36), air duct apron (36) with air duct spiral case (35) are connected, air duct apron (36) with air duct spiral case (35) enclose into the ventilation passageway, the tip of air duct apron (36) is provided with fresh air inlet (361) that are linked together with the external world, first fan portion (33) with second fan portion (34) are through fresh air inlet (361) lead to the new trend is introduced in casing (10).

5. Indoor unit according to claim 4, characterized in that the fresh air device (30) further comprises:

the filter screen (37), the filter screen (37) set up in between wind channel apron (36) and the fan portion.

6. Indoor unit according to claim 3, characterized in that the first fan section (33) and the second fan section (34) are controlled independently.

7. The indoor unit according to claim 1, further comprising:

the steam generating device (40) is arranged in the shell (10), and the steam generating device (40) is used for spraying steam into the first cavity (11) and the second cavity (12).

8. Indoor unit according to claim 7, characterized in that the steam generating device (40) comprises:

the water tank (41), the water tank (41) and the fresh air device (30) are arranged adjacently, a steam channel (411) is arranged on the side wall of the water tank (41) facing the first cavity (11), and the steam channel (411) is communicated with the first cavity (11);

the electrostatic ion atomizer (42), the first cavity (11) is arranged in the water tank;

a driver (43), the driver (43) is connected with the electrostatic ion atomizer (42), and the driver (43) is used for controlling the electrostatic ion atomizer (42) to be in a working state or a non-working state.

9. Indoor unit according to claim 8, characterized in that the first chamber (11) has an upper outlet channel (111) and the second chamber (12) has a lower outlet channel (112), and the outlet of the steam channel (411) is located on the side wall of the upper outlet channel (111).

10. The indoor unit according to claim 3, further comprising:

the first through-flow fan blade (51), the first through-flow fan blade (51) is arranged in the first cavity (11), and the rotation direction of the first through-flow fan blade (51) is adjustably arranged;

the second cross-flow fan blade (52) is arranged in the second cavity (12), the rotation direction of the second cross-flow fan blade (52) is arranged in an adjustable mode, and the first cross-flow fan blade (51) and the second cross-flow fan blade (52) are controlled independently.

11. The indoor unit of claim 10, wherein the first fresh air channel (31) and the second fresh air channel (32) are located between the first cross-flow fan blade (51) and the second cross-flow fan blade (52).

12. The indoor unit according to claim 2, wherein the fan unit includes:

a centrifugal fan blade (61);

the output shaft of the direct current motor (62) is connected with the centrifugal fan blade (61);

the motor mounting bracket (63), direct current motor (62) with motor mounting bracket (63) are connected, motor mounting bracket (63) set up in the wind channel portion.

13. An air conditioner comprising an indoor unit, characterized in that the indoor unit is the indoor unit according to any one of claims 1 to 12.