CN113587233A

CN113587233A - Air conditioner indoor unit and air conditioner with same

Info

Publication number: CN113587233A
Application number: CN202010367942.9A
Authority: CN
Inventors: 袁海; 陈志航; 谢鹏; 张�杰; 张滔; 周何杰
Original assignee: Midea Group Co Ltd; GD Midea Air Conditioning Equipment Co Ltd
Current assignee: Midea Group Co Ltd; GD Midea Air Conditioning Equipment Co Ltd
Priority date: 2020-04-30
Filing date: 2020-04-30
Publication date: 2021-11-02

Abstract

The invention discloses an air conditioner indoor unit and an air conditioner with the same, wherein the air conditioner indoor unit comprises: casing, indoor heat exchange unit and air handling unit. Be formed with on the casing and hold first return air inlet and the first air outlet that the chamber communicates and hold the second return air inlet that the chamber communicates with the second with the first, the third return air inlet, second air outlet and new trend import, indoor heat exchange unit establishes at the first intracavity that holds, air handling unit establishes and holds the intracavity and include second fan subassembly at the second, second heat exchanger part and the purification part that sets up with the second return air inlet relatively, first switch door, second switch door and third switch door can open respectively and close the new trend import, second return air inlet and third return air inlet. According to the air-conditioning indoor unit, the quality of indoor air is improved by introducing fresh air, the cooling/heating effect can be ensured, the indoor return air volume can be adjusted, and the indoor air can be selectively purified.

Description

Air conditioner indoor unit and air conditioner with same

Technical Field

The invention relates to the field of air treatment equipment, in particular to an air conditioner indoor unit and an air conditioner with the same.

Background

In the related art, during the use of the air conditioner, the indoor environment is usually in a relatively closed state. In order to improve the indoor air quality, a fresh air function is added on the air conditioner, and outdoor fresh air is introduced into the room. However, there is generally a temperature difference between the outdoor temperature and the indoor temperature, which affects the cooling/heating effect of the air conditioner while the air conditioner introduces outdoor air into the room.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, an object of the present invention is to provide an indoor unit of an air conditioner, which can ensure a cooling/heating effect while improving indoor air quality by introducing fresh air, and can adjust an indoor return air volume, and can select whether to purify indoor air according to needs.

The invention also provides an air conditioner with the air conditioner indoor unit.

An air conditioning indoor unit according to an embodiment of a first aspect of the present invention includes: the air conditioner comprises a machine shell, a first accommodating cavity and a second accommodating cavity are defined in the machine shell and are separated from each other, a first air return opening and a first air outlet which are communicated with the first accommodating cavity are formed in the machine shell, and a second air return opening, a third air return opening, a second air outlet and a fresh air inlet which are communicated with the second accommodating cavity are formed in the machine shell; the indoor heat exchange unit is arranged in the first accommodating cavity and comprises a first fan assembly and a first heat exchanger component, and the first fan assembly can drive airflow to enter the first accommodating cavity from the first air return opening to exchange heat with the first heat exchanger component and blow out from the first air outlet; the air treatment unit is arranged in the second accommodating cavity and comprises a second fan assembly, a second heat exchanger component and a purification component for purifying air, the purification component is adjacent to the second return air inlet and is arranged opposite to the second return air inlet, and the second fan assembly can drive airflow to enter the second accommodating cavity from the second return air inlet, the third return air inlet and the fresh air inlet to exchange heat with the second heat exchanger component and blow out from the second air outlet; the first switch door can open and close the fresh air inlet and is movably arranged at the fresh air inlet; the second switch door can open and close the second air return inlet and is movably arranged at the second air return inlet; and the third switch door can be opened and closed at the third air return inlet and can be movably arranged at the third air return inlet.

According to the air-conditioning indoor unit provided by the embodiment of the invention, the indoor environment temperature can be adjusted and the indoor air quality can be improved by arranging the indoor heat exchange unit and the air processing unit, and the air processing unit is arranged to be of a structure comprising the second heat exchanger part, so that fresh air introduced from the outdoor can be introduced into the room after heat exchange, and the refrigeration/heating effect can be ensured while the indoor air quality is improved. In addition, the second air return opening and the third air return opening which can be opened and closed are arranged at the air processing unit, so that the indoor air return quantity can be increased, the refrigeration/heating efficiency can be further improved, meanwhile, the indoor air return quantity can be adjusted, and whether the indoor air return of the air processing unit is purified or not can be selected according to needs by arranging the purifying part at the second air return opening, so that the indoor unit of the air conditioner is more flexible to use, and the indoor air quality can be further improved.

According to some embodiments of the invention, the first opening and closing door is slidably disposed within the second receiving chamber.

In some optional embodiments of the present invention, an installation frame is disposed on an inner wall of the second accommodating cavity, the fresh air inlet is located on an inner circumferential side of the installation frame, and a first driving mechanism for driving the first opening and closing door to slide is disposed on the installation frame.

Optionally, the two opposite side walls of the mounting frame are respectively provided with a sliding groove, and the two opposite ends of the first switch door are slidably arranged in the corresponding sliding grooves.

Optionally, the first drive mechanism comprises: the motor is connected with and supported on the bottom side wall of the mounting frame; a gear connected to an output shaft of the motor; the rack is arranged on the first switch door and meshed with the gear.

According to some embodiments of the present invention, the second opening and closing door is rotatably disposed at the second air return opening, the second opening and closing door includes a plurality of sub opening and closing doors arranged in a left-right direction or an up-down direction, each of the sub opening and closing doors is rotatable, and the third opening and closing door is rotatably disposed at the third air return opening.

According to some embodiments of the present invention, an installation frame is disposed on an inner wall of the second accommodating cavity, the fresh air inlet and the second air return inlet are both located on an inner peripheral side of the installation frame, a first driving mechanism for driving the first door opening and closing movement is disposed on the installation frame, and a second driving mechanism for driving the second door opening and closing movement is disposed on the installation frame.

According to some embodiments of the invention, the second return air inlet is provided above the fresh air inlet, and the third return air inlets are provided on both left and right sides of the fresh air inlet.

In some optional embodiments of the invention, the fresh air inlet is disposed opposite the purification component.

According to some embodiments of the present invention, the first outlet and the second outlet are located at a front side of the housing, and the first outlet and the second outlet are arranged in a vertical direction or a horizontal direction, or the second outlet is located at an outer circumferential side of the first outlet.

According to some embodiments of the invention, the first fan assembly comprises at least one of an axial flow rotor, a counter-rotating rotor, and an oblique flow rotor, and the second fan assembly comprises a centrifugal rotor.

According to some embodiments of the present invention, the first air outlet includes at least one first sub-outlet group, each first sub-outlet group includes a plurality of first sub-outlets, the second air outlet includes at least one second sub-outlet group, each second sub-outlet group includes a plurality of second sub-outlets, and the first sub-outlet group and the second sub-outlet group are arranged along an up-down direction or a left-right direction.

In some optional embodiments of the present invention, a first air guiding assembly is disposed in the first sub air outlet, a second air guiding assembly is disposed in the second sub air outlet, and an air guiding structure of the first air guiding assembly is the same as an air guiding structure of the second air guiding assembly.

In some optional embodiments of the present invention, the first air outlet includes at least two first sub air outlet groups arranged along an up-down direction, the first fan assembly includes a plurality of first wind wheels, the number of the first wind wheels is the same as the number of the first sub air outlets and corresponds to the first sub air outlets one by one, the first wind wheel corresponding to the first sub air outlet group located at the uppermost position is a counter-rotating wind wheel, the first wind wheel corresponding to the first sub air outlet group located at the lowermost position is an axial-flow wind wheel or an oblique-flow wind wheel, and the second fan assembly includes a second wind wheel.

According to some embodiments of the invention, the second fan assembly is provided upstream of the second heat exchanger component in the direction of airflow flow.

According to some embodiments of the present invention, an included angle is formed between the first heat exchanger element and the second heat exchanger element, the second heat exchanger element extends forward in a direction from top to bottom to divide the second accommodating chamber into an air inlet chamber and an air outlet chamber, the fresh air inlet, the second air return opening and the third air return opening are formed on a side wall of the air inlet chamber, and the second air outlet is formed on a side wall of the air outlet chamber.

In some alternative embodiments of the invention, the first heat exchanger element extends in a vertical direction and the second heat exchanger element is angled in the range of 10-45 ° from the vertical.

According to some embodiments of the invention, the first heat exchanger component and the second heat exchanger component are respectively independent formed pieces, a first water pan is arranged between the first heat exchanger component and the second heat exchanger component, and the first water pan divides an inner cavity of the machine shell into the first accommodating cavity and the second accommodating cavity which are separated from each other; alternatively, the first heat exchanger component and the second heat exchanger component are integrally formed.

In some optional embodiments of the invention, the first heat exchanger component and the second heat exchanger component are respectively independent formed parts, a heat exchange tube of the first heat exchanger component and a heat exchange tube of the second heat exchanger component are connected in series, the heat exchange tube of the first heat exchanger component and the heat exchange tube of the second heat exchanger component are communicated through a connecting tube, an avoidance hole penetrating through the first water pan along the up-down direction is formed on the first water pan, and a part of the connecting tube penetrates through the avoidance hole.

Optionally, the dodge hole runs through the lateral wall of first water collector in order to form the installing port, the connecting pipe is suitable for to pass through the installing port wears to locate the dodge hole, installing port department lid is equipped with the detachable gland.

According to some embodiments of the invention, a first electric auxiliary heating element is arranged in the first accommodating cavity, the first electric auxiliary heating element is connected to the first heat exchanger component, and the first electric auxiliary heating elements are arranged in a plurality and along the up-down direction or the left-right direction; and/or a second electric auxiliary heating piece is arranged in the second accommodating cavity, the second electric auxiliary heating piece is connected to the second heat exchanger component, and the second electric auxiliary heating pieces are arranged in a plurality of directions up and down or left and right.

In some optional embodiments of the present invention, the first accommodating cavity is provided with the first electric auxiliary heating element and first mounting brackets disposed at two opposite sides of the first electric auxiliary heating element, each first mounting bracket is provided with a plurality of first positioning holes arranged along a length direction of the first mounting bracket, two opposite ends of the first electric auxiliary heating element are respectively provided with a first positioning column, the first positioning columns are accommodated and matched in the corresponding first positioning holes, the first heat exchanger component comprises a first heat exchanger and first connecting plates connected at two left and right sides of the first heat exchanger, the two first mounting brackets are respectively connected with the two first connecting plates, and the first connecting plates are connected with the casing; and/or, the second holding cavity is internally provided with the second electric auxiliary heating part and second mounting supports arranged at two opposite sides of the second electric auxiliary heating part, each second mounting support is provided with a plurality of second positioning holes distributed along the length direction of the second mounting support, the two opposite ends of the second electric auxiliary heating part are provided with second positioning columns, the second positioning columns are matched with the corresponding second positioning holes in the second positioning holes, the second heat exchanger part comprises a second heat exchanger and second connecting plates connected at the left side and the right side of the second heat exchanger, the two second mounting supports are respectively connected with the two second connecting plates, and the second connecting plates are connected with the casing.

An air conditioner according to an embodiment of a second aspect of the present invention is characterized by comprising: an air conditioning indoor unit according to the above-described first aspect embodiment of the present invention.

According to the air conditioner provided by the embodiment of the invention, by arranging the air conditioner indoor unit, the indoor air quality is improved by introducing fresh air, and meanwhile, the refrigerating/heating effect can be ensured. And, can adjust indoor return air volume, can select whether to purify indoor air as required.

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

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a perspective view of an indoor unit of an air conditioner according to some embodiments of the present invention;

fig. 2 is a perspective view of another angle of the air conditioning indoor unit of fig. 1;

fig. 3 is a front view of the air conditioning indoor unit of fig. 1;

fig. 4 is a rear view of the indoor unit of the air conditioner in fig. 1;

fig. 5 is a side view of the air conditioning indoor unit of fig. 1;

fig. 6 is a sectional view of the air conditioning indoor unit of fig. 1;

FIG. 7 is an enlarged view taken at A in FIG. 6;

fig. 8 is a schematic view showing a part of the construction of the indoor unit of the air conditioner in fig. 1;

fig. 9 is an enlarged view at B in fig. 8;

fig. 10 is another angle view schematically showing a part of the structure of the indoor unit of the air conditioner in fig. 8;

fig. 11 is a front view of a part of the structure of the air conditioning indoor unit in fig. 8;

fig. 12 is a schematic view of the mating of first and second heat exchanger components of an air conditioning indoor unit according to some embodiments of the present invention;

FIG. 13 is a cross-sectional view of the first and second heat exchanger members of FIG. 12;

fig. 14 is a schematic view of the engagement of a first mounting bracket with a first electric auxiliary heating element of an air conditioning indoor unit according to some embodiments of the present invention;

fig. 15 is a schematic view of the second mounting bracket of the indoor unit of an air conditioner according to some embodiments of the present invention engaged with the second electric auxiliary heating element;

fig. 16 is a schematic view of a first drip pan and a gland of an indoor unit of an air conditioner according to some embodiments of the present invention.

Reference numerals:

an indoor air-conditioning unit 100;

a housing 10; a front case 101; a rear housing 102; a top cover 103; a base 104;

a first accommodation chamber 11; a first air return opening 111; a first air outlet 112; the first sub-outlet group 112 a; the first sub-air outlet 1121; a first air guiding assembly 1122;

a second accommodating chamber 12; an air inlet chamber 12 a; an air outlet cavity 12 b; a second air return opening 121; a second switch gate 1211; a sub-switch door 12111; a second outlet 122; the second sub-outlet group 122 a; the second sub-outlet 1221; a second air guide assembly 1222; a third return air inlet 123; a third switching gate 1231; a fresh air inlet 124; a first switch door 1241; a mounting frame 125; a chute 1251;

an indoor heat exchange unit 20; a first wind wheel 21; a first heat exchanger component 22; a first heat exchanger 221; a first connection plate 222; a first electric auxiliary heating element 23; a first positioning post 231; a first drip tray 24; a relief hole 241; a mounting opening 242; a gland 25; a first drive mechanism 26; a motor 261; a gear 262; a rack 263; a first mounting bracket 27; a first positioning hole 271;

an air handling unit 30; a second wind wheel 31; a second heat exchanger component 32; the second heat exchanger 321; a second connecting plate 322; a second electric auxiliary heating element 33; second positioning posts 331; a second drip tray 34; a drain pipe 341; a purge member 35; a second mounting bracket 36; the second positioning hole 361.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

An air conditioning indoor unit 100 according to an embodiment of the present invention is described below with reference to the accompanying drawings.

Referring to fig. 1 and 2, an air conditioning indoor unit 100 according to an embodiment of a first aspect of the present invention includes: the indoor heat exchange unit 20, the air handling unit 30, the first switching door 1241, the second switching door 1211, and the third switching door 1231.

Referring to fig. 1, 2 and 6, a first receiving chamber 11 and a second receiving chamber 12 spaced apart from each other are defined in the housing 10, and the first receiving chamber 11 and the second receiving chamber 12 may be arranged in a vertical direction or a horizontal direction, for example, the first receiving chamber 11 may be located above the second receiving chamber 12. A first air return opening 111 and a first air outlet 112 communicated with the first accommodating cavity 11 are formed on the casing 10, and a second air return opening 121, a third air return opening 123, a second air outlet 122 and a fresh air inlet 124 communicated with the second accommodating cavity 12 are formed on the casing 10. The first air return opening 111, the second air return opening 121, the third air return opening 123, the first air outlet 112 and the second air outlet 122 can be communicated with an indoor environment, and the fresh air inlet 124 can be communicated with an outdoor environment.

Alternatively, the first air return opening 111, the second air return opening 121 and the fresh air inlet 124 may be formed at the rear side of the casing 10, the third air return opening 123 may be located at the left and right sides of the fresh air inlet 124, the first air return opening 111 may be located above the second air return opening 121, and the fresh air inlet 124 may be formed below the second air return opening 121; the first outlet 112 and the second outlet 122 may be located at the front side of the cabinet 10, and the first outlet 112 may be located above the second outlet 122.

Alternatively, the casing 10 may include a front casing 101 and a rear casing 102 connected in front and rear, and a base 104 and a top cover 103, the front casing 101 and the rear casing 102 being provided on the base 104 and supported on the base 104, the top cover 103 being provided on top of the front casing 101 and the rear casing 102. The first air outlet 112 and the second air outlet 122 are formed on the front casing 101, and the fresh air inlet 124, the first air return opening 111, the second air return opening 121, and the third air return opening 123 are formed on the rear casing 102.

Optionally, an air inlet grille may be disposed at each of the first air return opening 111 and the second air return opening 121.

Optionally, a filtering and purifying module may be disposed at the first air return opening 111, and the filtering and purifying module may include at least one of an IFD electrostatic dust collecting net, a HEPA net, and a formaldehyde removing module.

Optionally, a diversion cover may be disposed at the fresh air inlet 124, a plurality of fresh air inlet holes may be formed on the diversion cover, when outdoor air enters the fresh air inlet 124, the outdoor air may flow into the second accommodating cavity 12 through the plurality of fresh air inlet holes on the diversion cover, and the diversion cover may play a role in diversion.

The indoor heat exchange unit 20 is disposed in the first accommodating cavity 11, the indoor heat exchange unit 20 includes a first fan assembly and a first heat exchanger component 22, and the first fan assembly can drive airflow to enter the first accommodating cavity 11 from the first air return opening 111 to exchange heat with the first heat exchanger component 22 and then blow out from the first air outlet 112. When the indoor unit 100 of the air conditioner is in operation, the first fan assembly can drive indoor air to enter the first accommodating cavity 11 from the first air return opening 111, and after exchanging heat with the first heat exchanger component 22, the indoor air is blown out to the indoor from the first air outlet 112, so that the indoor ambient temperature can be adjusted.

The air processing unit 30 is disposed in the second accommodating cavity 12, the air processing unit 30 includes a second fan assembly, a second heat exchanger component 32 and a purifying component 35 for purifying air, the purifying component 35 is disposed adjacent to the second air return opening 121 and opposite to the second air return opening 121, and the second fan assembly can drive air flow to enter the second accommodating cavity 12 from the second air return opening 121, the third air return opening 123 and the fresh air inlet 124 to exchange heat with the second heat exchanger component 32 and blow out from the second air outlet 122. The second fan assembly drives the indoor air to enter the second accommodating cavity 12 from the second air return opening 121, and the indoor air is blown out of the second air outlet 122 to the indoor space after exchanging heat with the second heat exchanger component 32, so that the indoor environment temperature can be adjusted; the second fan assembly drives the indoor air to enter the second accommodating cavity 12 from the third air return opening 123, and the indoor air is blown out of the second air outlet 122 to the indoor space after exchanging heat with the second heat exchanger component 32, so that the indoor environment temperature can be adjusted; drive outdoor air at second fan subassembly and get into the second from new trend import 124 and hold the chamber 12 in to blow off to indoor from second air outlet 122 after the heat transfer with second heat exchanger part 32, through introducing outdoor new trend indoor from this, can reduce indoor carbon dioxide concentration, can improve indoor environmental quality, and because discharge indoor again after the new trend heat transfer of introducing, can guarantee the air conditioner refrigeration/effect of heating.

Fresh air inlet 124 can be opened and closed to first switch door 1241, and fresh air inlet 124 department is located movably to first switch door 1241, through the activity of first switch door 1241, can realize that first switch door 1241 opens and closes fresh air inlet 124. When the fresh air inlet 124 is opened by the first switch door 1241, the second fan assembly can drive outdoor air to enter the second accommodating cavity 12 from the fresh air inlet 124, so that outdoor fresh air can be introduced into a room, and the fresh air flows into the room after heat exchange, so that a fresh air function can be realized; when the first opening and closing door 1241 closes the fresh air inlet 124, the first opening and closing door 1241 blocks the passage of the outdoor air into the second accommodating chamber 12.

Alternatively, the air conditioning indoor unit 100 may include a carbon dioxide sensor, the carbon dioxide sensor may be configured to detect a carbon dioxide content in indoor air, the carbon dioxide sensor may be electrically connected to a control device of the air conditioning indoor unit 100, and the first driving mechanism 26 (for example, the first driving mechanism 26 may be a motor) that drives the first opening/closing door 1241 to move may be electrically connected to the control device of the air conditioning indoor unit 100, and the control device may control the first driving mechanism 26 to drive the first opening/closing door 1241 to move so as to open or close the fresh air inlet 124 according to a carbon dioxide value detected by the carbon dioxide sensor. For example, when the carbon dioxide sensor detects that the content of carbon dioxide in the indoor air is high, the control device may control the first driving mechanism 26 to drive the first switch door 1241 to open the fresh air inlet 124 so as to introduce the outdoor fresh air; when the carbon dioxide sensor detects that the content of carbon dioxide in the indoor air is low, the control device may control the first driving mechanism 26 to drive the first switch door 1241 to close the fresh air inlet 124. Thereby, the carbon dioxide content in the indoor air can be kept at a low level, and energy consumption can be saved.

The second opening/closing door 1211 can open and close the second air return opening 121, the second opening/closing door 1211 is movably disposed at the second air return opening 121, and the second opening/closing door 1211 can open and close the second air return opening 121 by the movement of the second opening/closing door 1211. Moreover, since the second air return opening 121 is provided with the purifying member 35, the indoor air entering from the second air return opening 121 can be purified by the purifying member 35 and then blown into the room. The third switch door 1231 can open and close the third air return opening 123, the third switch door 1231 is movably disposed at the third air return opening 123, and the third switch door 1231 can open and close the third air return opening 123 through the movement of the third switch door 1231, so that the indoor air entering from the third air return opening 123 does not undergo purification.

Since both the second air return opening 121 and the third air return opening 123 can be opened and closed, and the indoor air entering from the second air return opening 121 can be purified by the purifying member 35, and the indoor air entering from the third air return opening 123 is not purified, the opening and closing of the second air return opening 121 and the third air return opening 123 can be controlled according to the indoor air quality, for example, according to the indoor particulate matter content (for example, PM2.5 content), formaldehyde content, and the like.

Alternatively, the indoor unit 100 may include a detection device for detecting the content of at least one of solid particles and formaldehyde in the indoor air, the detection device may be electrically connected to the control device of the indoor unit 100, and the second driving mechanism for driving the second opening/closing door 1211 to move and the third driving mechanism for driving the third opening/closing door 1231 to move (for example, the third driving mechanism may be a motor) may be electrically connected to the control device of the indoor unit 100, and the control device may control the second driving mechanism and/or the third driving mechanism to drive the corresponding opening/closing door to open or close the corresponding air return opening according to the detection result of the detection device.

For example, when the detecting device detects that the content of the solid particles and/or formaldehyde in the indoor air is high, the control device may control the second driving mechanism to drive the second switch door 1211 to open the second return air inlet 121, so that at least a portion of the indoor return air can be purified, thereby improving the indoor air quality; when the detecting device detects that the content of the solid particles and/or formaldehyde in the indoor air is low, the control device may control the second driving mechanism to drive the second switch door 1211 to close the second air return opening 121. When the detection device detects that the content of solid particles and/or formaldehyde in the indoor air is high, the third switch 1231 can be in an open state to increase the indoor return air volume, and the third switch 1231 can also be in a closed state to purify the indoor return air of the air processing unit 30; when the detection device detects that the content of the solid particles and/or formaldehyde in the indoor air is low, the third switch door 1231 may be in an open state to increase the indoor air volume.

Alternatively, the purification part 35 may include at least one of an IFD electrostatic precipitation net, a HEPA net, and a formaldehyde removal module.

Further, the casing 10 is formed with a replacement port communicating with the second receiving chamber 12, and the purge member 35 may be inserted into the second receiving chamber 12 through the replacement port or the purge member 35 may be taken out from the second receiving chamber 12 through the replacement port. Thus, the cleaning member 35 can be easily attached, detached, replaced, and maintained through the replacement opening provided in the casing 10.

Alternatively, the first fan assembly and the second fan assembly may each be independently controlled.

Alternatively, when the air conditioner is in operation, only the first fan assembly may be turned on, and the first fan assembly may drive indoor air to enter the first accommodating cavity 11 from the first air return opening 111, and after exchanging heat with the first heat exchanger component 22, the indoor air is blown out to the indoor from the first air outlet 112, so that the indoor ambient temperature may be adjusted. Or, when the air conditioner works, the first fan assembly and the second fan assembly may work, and the first fan assembly may drive indoor air to enter the first accommodating cavity 11 from the first air return opening 111, and blow out the indoor air from the first air outlet 112 after exchanging heat with the first heat exchanger component 22.

When the second fan assembly works, only the fresh air inlet 124 is opened, and the fresh air function can be realized; or, only the second air return opening 121 may be opened, and at this time, the indoor air return amount may be increased and the indoor air may be purified; or, only the third return air inlet 123 may be opened, and at this time, the indoor return air volume may be increased; or, the fresh air inlet 124 and the second air return opening 121 can be both opened, and the fresh air and air purification functions can be simultaneously realized; or, the fresh air inlet 124 and the third air return opening 123 can be both opened, so that the fresh air function can be realized and the indoor air return quantity can be increased; or, the second air return opening 121 and the third air return opening 123 may be both opened, so that the indoor air return amount can be significantly increased and the indoor air can be purified; or, the fresh air inlet 124, the second air return opening 121 and the third air return opening 123 can be opened, so that the fresh air function can be realized, the indoor air return amount can be increased remarkably, and the indoor air can be purified.

When the second fan assembly is not operating, the fresh air inlet 124, the second air return opening 121, and the third air return opening 123 may all be closed.

Optionally, the indoor unit 100 of the air conditioner may further include a display module, where the display module may be configured to display a current set temperature, a current wind speed, a current cooling and heating state, and the display module may be disposed in the first accommodating cavity 11 and located above the first fan assembly. Further, the air-conditioning indoor unit 100 may further include a first electronic control box component and a second electronic control box component, the first electronic control box component may be disposed in the first accommodating cavity 11 and above the first fan component, the first electronic control box component may be disposed at the rear side of the display module, and the second electronic control box component may be disposed in the second accommodating cavity 12. Wherein, the electricity is connected between first automatically controlled box subassembly and the automatically controlled box subassembly of second, and display module and first fan subassembly can be connected with first automatically controlled box subassembly electricity, and the second fan subassembly can be connected with the automatically controlled box subassembly electricity of second.

Optionally, the air processing unit 30 may further include a humidifying module, the humidifying module is disposed in the second accommodating chamber 12, and air entering from at least one of the second air return opening 121, the third air return opening 123 and the fresh air inlet 124 may be humidified by the humidifying module to adjust the indoor environment humidity.

According to the air conditioning indoor unit 100 of the embodiment of the present invention, the indoor heat exchange unit 20 and the air processing unit 30 are provided, so that the indoor ambient temperature can be adjusted and the indoor air quality can be improved, and the air processing unit 30 is configured to include the second heat exchanger part 32, so that the fresh air introduced from the outside can be introduced into the room after exchanging heat, and thus, the indoor air quality can be improved and the cooling/heating effect can be ensured. In addition, the second return air inlet 121 and the third return air inlet 123 which can be opened and closed are arranged on the air handling unit 30, so that the indoor return air quantity can be increased, the cooling/heating efficiency can be further improved, meanwhile, the indoor return air quantity can be adjusted, and whether the indoor return air of the air handling unit 30 is purified or not can be selected according to requirements by arranging the purifying component 35 at the second return air inlet 121, so that the indoor unit 100 of the air conditioner is more flexible to use, and the indoor air quality can be further improved.

According to some embodiments of the present invention, referring to fig. 6 to 9, the first opening and closing door 1241 is slidably disposed in the second accommodating chamber 12, for example, the first opening and closing door 1241 is slidably disposed in the second accommodating chamber 12 in the left and right directions, and the opening and closing of the fresh air inlet 124 can be conveniently achieved by the sliding of the first opening and closing door 1241.

In some alternative embodiments of the present invention, referring to fig. 6-9, the inner wall of the second accommodating chamber 12 is provided with a mounting frame 125, for example, the mounting frame 125 may be circular or square, the fresh air inlet 124 is located at the inner peripheral side of the mounting frame 125, and the first driving mechanism 26 for driving the first opening/closing door 1241 to slide is provided on the mounting frame 125. Thus, the installation and fixation of the first driving mechanism 26 for driving the sliding of the first opening/closing door 1241 are facilitated by the installation frame 125.

Alternatively, referring to fig. 6 to 9, sliding slots 1251 are respectively disposed on two opposite sidewalls of the mounting frame 125, and two opposite ends of the first opening/closing door 1241 are slidably disposed on the corresponding sliding slots 1251. For example, the upper and lower opposite sidewalls of the mounting frame 125 are respectively provided with a sliding slot 1251, the upper end of the first opening/closing door 1241 is slidably received in the sliding slot 1251 of the upper sidewall of the mounting frame 125, and the lower end of the first opening/closing door 1241 is slidably received in the sliding slot 1251 of the lower sidewall of the mounting frame 125. From this, set up spout 1251 on the relative both sides wall of installing frame 125 respectively, and make the relative both ends slidable of first switch door 1241 locate corresponding spout 1251 in, made things convenient for the installation of first switch door 1241 to when first switch door 1241 slides, spout 1251 can play spacing effect of leading.

Alternatively, referring to fig. 6-9, the first drive mechanism 26 includes: motor 261, gear 262 and rack 263. The motor 261 is coupled and supported on the bottom side wall of the mounting frame 125, thereby facilitating the mounting and fixing of the motor 261 and allowing the motor 261 to be stably supported. The gear 262 is connected to an output shaft of the motor 261, the rack 263 is provided on the first opening/closing door 1241, a length direction of the rack 263 is identical to a sliding direction set by the first opening/closing door 1241, and the rack 263 is engaged with the gear 262. Thus, when the motor 261 is operated, the motor 261 drives the gear 262 to rotate, and the first opening/closing door 1241 can be conveniently driven to slide in the setting direction by the engagement of the gear 262 and the rack 263.

According to some embodiments of the present invention, referring to fig. 1, 2, 4 and 9, the second switch gate 1211 is rotatably disposed at the second air return opening 121, the second switch gate 1211 includes a plurality of sub switch gates 12111 arranged in a left-right direction or a top-bottom direction, each sub switch gate 12111 is rotatable, the plurality of sub switch gates 12111 are rotatable in synchronization, and each sub switch gate 12111 is also independently controllable. For example, the second switching door 1211 includes a plurality of sub-switching doors 12111 arranged in the left-right direction and the rotation axis of each sub-switching door 12111 extends in the up-down direction, and for example, the second switching door 1211 includes a plurality of sub-switching doors 12111 arranged in the up-down direction and the rotation axis of each sub-switching door 12111 extends in the left-right direction, the third switching door 1231 is rotatably provided at the third return air opening 123, and the rotation axis of the third switching door 1231 may extend in the up-down direction. Thus, the opening and closing of the second and third air-

return openings

121 and 123 can be conveniently achieved, and the opening degrees of the second and third air-

return openings

121 and 123 can be adjusted by adjusting the rotation angle of the sub switch door 12111 and the rotation angle of the third switch door 1231.

According to some embodiments of the present invention, referring to fig. 6 to 9, a mounting frame 125 is disposed on an inner wall of the second accommodating chamber 12, the fresh air inlet 124 and the second air return opening 121 are both located on an inner peripheral side of the mounting frame 125, a first driving mechanism 26 for driving the first opening/closing door 1241 to move is disposed on the mounting frame 125, and a second driving mechanism for driving the second opening/closing door 1211 to move is disposed on the mounting frame 125. Thus, the first driving mechanism 26 for driving the first opening/closing door 1241 to move and the second opening/closing door 1211 for driving to be installed and fixed are facilitated by the installation frame 125.

According to some embodiments of the present invention, referring to fig. 1, 2 and 4, the second air return opening 121 is disposed above the fresh air inlet 124, and the third air return openings 123 are disposed on left and right sides of the fresh air inlet 124. Therefore, the second air return opening 121, the third air return opening 123 and the fresh air inlet 124 are reasonable in distribution position on the casing 10, and the fresh air inlet 124 is convenient to connect with a fresh air pipe for introducing outdoor air.

In some alternative embodiments of the present invention, referring to fig. 6, the fresh air inlet 124 is disposed opposite to the purification component 35, and both the fresh air inlet 124 and the second air return opening 121 are disposed opposite to the purification component 35. Therefore, the indoor air entering from the second air return opening 121 and the outdoor air entering from the fresh air inlet 124 can be purified by providing the purifying member 35, and the number of parts can be reduced and the assembling process of the indoor unit 100 of the air conditioner can be simplified by making the second air return opening 121 and the fresh air inlet 124 share the same purifying member 35.

Alternatively, a mounting frame 125 is provided on the inner wall of the second accommodating chamber 12, the fresh air inlet 124 and the second air return opening 121 are both located on the inner peripheral side of the mounting frame 125, and the purifying member 35 may be provided in a space defined by the mounting frame 125, thereby facilitating the installation and positioning of the purifying member 35.

According to some embodiments of the present invention, referring to fig. 1, 3 and 6, the first outlet 112 and the second outlet 122 are both located at a front side of the cabinet 10, and the first outlet 112 and the second outlet 122 are arranged in an up-down direction or a left-right direction, or the second outlet 122 is located at an outer circumferential side of the first outlet 112. The first air outlet 112 and the second air outlet 122 are arranged along the vertical direction or the horizontal direction, so that the arrangement of the first air outlet 112 and the second air outlet 122 is facilitated. Or, the first air outlet 112 and the second air outlet 122 are both located at the front side of the casing 10, and the second air outlet 122 may be located at the outer peripheral side of the first air outlet 112, so that the air outlet positions of the first air outlet 112 and the second air outlet 122 are relatively concentrated by nesting the first air outlet 112 and the second air outlet 122.

According to some embodiments of the invention, referring to FIG. 6, the first fan assembly includes at least one of an axial flow rotor, a counter-rotating rotor, and an oblique flow rotor, and the second fan assembly includes a centrifugal rotor. For example, the first fan assembly may include only one of an axial flow wind wheel, a counter-rotating wind wheel, and a diagonal flow wind wheel, the first fan assembly may also include only two of an axial flow wind wheel, a counter-rotating wind wheel, and a diagonal flow wind wheel, or the first fan assembly may include an axial flow wind wheel, a counter-rotating wind wheel, and a diagonal flow wind wheel. Therefore, the first fan assembly can drive larger air volume to enter the first accommodating cavity 11 for heat exchange and then flow out of the first air outlet 112 to the indoor, so that the refrigerating/heating efficiency can be improved, and the refrigerating/heating effect can be improved; the second fan assembly is arranged to include the centrifugal wind wheel, so that wind pressure can be increased, and outdoor air can be better introduced into a room.

When the first fan assembly comprises the contra-rotating wind wheels, the contra-rotating wind wheels comprise two coaxially arranged wind wheels, the rotating directions of the two wind wheels are opposite, namely the inclination directions of blades of the two wind wheels are opposite, and each wind wheel in the contra-rotating wind wheels can be an axial-flow wind wheel or an oblique-flow wind wheel.

Wherein, two wind wheels in the disrotatory wind wheel can be rotated by the motor drive of difference, through the rotation direction and the rotational speed of controlling two wind wheels in the disrotatory wind wheel respectively, can realize different air supply modes. When the rotating directions of the two wind wheels in the contra-rotating wind wheels are opposite, the air outlet directions of the two wind wheels in the contra-rotating wind wheels are the same, and when the rotating directions of the two wind wheels in the contra-rotating wind wheels are opposite and the rotating speeds are substantially the same, the contra-rotating wind wheels can realize a remote air supply effect; when the rotating speeds of the two wind wheels in the counter-rotating wind wheels are different greatly (at the moment, the rotating directions of the two wind wheels in the counter-rotating wind wheels can be opposite or the same), the airflow can be scattered in the process of flowing through the counter-rotating wind wheels, and therefore the wind supply effect without wind sense or soft wind sense can be achieved for the counter-rotating wind wheels.

According to some embodiments of the present invention, referring to fig. 1, 3 and 6, the first outlet 112 includes at least one first sub-outlet group 112a, each first sub-outlet group 112a includes a plurality of first sub-outlets 1121, the second outlet 122 includes at least one second sub-outlet group 122a, each second sub-outlet group 122a includes a plurality of second sub-outlets 1221, and the first sub-outlet group 112a and the second sub-outlet group 122a are arranged along a vertical direction or a horizontal direction. For example, when the first sub-outlet groups 112a are multiple groups and the second sub-outlet groups 122a are multiple groups, the multiple groups of the first sub-outlet groups 112a are arranged along the vertical direction and the multiple groups of the second sub-outlet groups 122a are arranged along the vertical direction, or the multiple groups of the first sub-outlet groups 112a are arranged along the horizontal direction and the multiple groups of the second sub-outlet groups 122a are arranged along the horizontal direction. For another example, the first sub-outlet group 112a and the second sub-outlet group 122a are a group, and the first sub-outlet group 112a and the second sub-outlet group 122a are arranged along the vertical direction or the horizontal direction. For another example, when the first sub-outlet groups 112a are a plurality of groups and the second sub-outlet groups 122a are a group, the plurality of groups of first sub-outlet groups 112a are arranged along the vertical direction or the horizontal direction, and the group of second sub-outlet groups 122a and the plurality of groups of first sub-outlet groups 112a are arranged along the same direction. Through setting up first air outlet 112 and second air outlet 122 to the structure that includes a plurality of sub-air outlets, can make the air-out more even, avoid the air-out too concentrated. In addition, the first sub-outlet group 112a and the second sub-outlet group 122a are arranged along the vertical direction or the horizontal direction, so that the arrangement of the air outlet structure is simple, and the integrity is stronger.

It should be noted that the "plurality of groups" in the present invention means two or more groups, and the "plurality" in the present invention means two or more groups.

In some optional embodiments of the present invention, referring to fig. 1, fig. 3, and fig. 6, a first air guiding assembly 1122 is disposed in the first sub-air outlet 1121, a second air guiding assembly 1222 is disposed in the second sub-air outlet 1221, and an air guiding structure of the first air guiding assembly 1122 is the same as that of the second air guiding assembly 1222. The air guide structure of the first air guide assembly 1122 is the same as that of the second air guide assembly 1222, and for example, the air guide structure of the first air guide assembly 1122 and that of the second air guide assembly 1222 may be both of a lattice structure. From this, through set up wind-guiding structure in the air outlet, can adjust air-out direction, air-out effect etc to make first wind-guiding component 1122's wind-guiding structure the same with second wind-guiding component 1222's wind-guiding structure, can simplify the structure, can make the wholeness of complete machine stronger simultaneously.

In other optional embodiments of the present invention, a first air guiding assembly 1122 is disposed in the first sub-air outlet 1121, a second air guiding assembly 1222 is disposed in the second sub-air outlet 1221, and an air guiding structure of the first air guiding assembly 1122 is different from an air guiding structure of the second air guiding assembly 1222. Therefore, by providing the air guide structure in the air outlet, the air outlet direction, the air outlet effect, and the like can be adjusted, and the air guide structure of the first air guide component 1122 is different from the air guide structure of the second air guide component 1222, so that the air outlet effects of the first sub air outlet 1121 and the second sub air outlet 1221 are different.

In some optional embodiments of the present invention, referring to fig. 1, fig. 3 and fig. 6, the first air outlet 112 includes at least two first sub air outlet groups 112a arranged along the up-down direction, the first fan assembly includes a plurality of first wind wheels 21, the number of the first wind wheels 21 is the same as the number of the first sub air outlets 1121, and the first wind wheels 21 corresponding to the first sub air outlet group 112a located at the top are counter-rotating wind wheels, the first wind wheels 21 corresponding to the first sub air outlet group 112a located at the bottom are axial flow wind wheels or diagonal flow wind wheels, and the second fan assembly includes one second wind wheel 31. Therefore, the first air outlet 112 includes at least two first sub air outlet groups 112a arranged in the up-down direction, and the number of the first wind wheels 21 is the same as that of the first sub air outlets 1121, and the first wind wheels correspond to the first sub air outlets 1121 one by one, so that the airflow driving power of the indoor heat exchange unit 20 can be improved, and the cooling/heating efficiency and effect of the indoor heat exchange unit 20 are improved; moreover, the first wind wheel 21 corresponding to the first sub-air outlet group 112a located at the lowermost position is set to be an axial flow wind wheel or an oblique flow wind wheel, so that the air can be supplied from a long distance to the first air outlet group 112a located at the lowermost position, and the first wind wheel 21 corresponding to the first sub-air outlet group 112a located at the uppermost position is a counter-rotating wind wheel, so that the air can be supplied from the first sub-air outlet group 112a located at the uppermost position at a longer distance, and thus, the air can be discharged from the plurality of first sub-air outlet groups 112a at multiple levels in the upper and lower directions, the air outlet effect is more three-dimensional, and the indoor temperature can be further uniform. And, through setting up the second fan subassembly to include a first wind wheel 21, first wind wheel 21 can be centrifugal wind wheel, realizes introducing the new trend and improves indoor air quality and guarantees the refrigeration/effect of heating, can simplify the complete machine structure, reduce cost.

Optionally, the first wind wheels 21 corresponding to each first sub-air outlet group 112a may be controlled synchronously or independently, and the first wind wheels 21 corresponding to each first sub-air outlet 1121 may be controlled independently.

According to some embodiments of the present invention, referring to fig. 6, the second fan assembly is disposed upstream of the second heat exchanger component 32 in the direction of airflow flow. Therefore, the arrangement of the parts in the second accommodating cavity 12 is facilitated, the structure of the whole machine is compact, and the air inlet volume of the second air return opening 121 and the fresh air inlet 124 is larger.

According to some embodiments of the present invention, referring to fig. 6, 12 and 13, an included angle is formed between the first heat exchanger element 22 and the second heat exchanger element 32, the second heat exchanger element 32 extends forward in a direction from top to bottom to divide the second accommodating chamber 12 into an air inlet chamber 12a and an air outlet chamber 12b, a fresh air inlet 124, a second air return opening 121 and a third air return opening 123 are formed on a side wall of the air inlet chamber 12a, and a second air outlet 122 is formed on a side wall of the air outlet chamber 12 b. Therefore, the arrangement and the arrangement of the parts in the casing 10 are convenient, and the second accommodating cavity 12 can be conveniently separated into the air inlet cavity 12a and the air outlet cavity 12b by forwardly inclining and extending the second heat exchanger part 32 in the direction from top to bottom. In addition, by arranging the second heat exchanger part 32 obliquely, the overall height of the second heat exchanger part can be reduced under the condition that the heat exchange area of the second heat exchanger part is constant, and thus the overall height of the whole machine can be reduced.

In some alternative embodiments of the invention, referring to fig. 6, 12 and 13, the first heat exchanger element 22 extends in a vertical direction and the second heat exchanger element 32 is at an angle a in the range of 10-45 ° to the vertical. Therefore, the arrangement and the arrangement of parts in the machine shell 10 are facilitated, and the included angle range between the second heat exchanger part 32 and the vertical direction is set in the range, so that the thickness of the whole machine in the front-back direction is small while the whole height of the second heat exchanger part is reduced, and the reduction of the size of the whole machine is facilitated.

According to some embodiments of the present invention, referring to fig. 6, 12-15, the first heat exchanger component 22 and the second heat exchanger component 32 are respectively independent formed pieces, a first water pan 24 is arranged between the first heat exchanger component 22 and the second heat exchanger component 32, and the first water pan 24 divides an inner cavity of the cabinet 10 into a first accommodating cavity 11 and a second accommodating cavity 12 which are separated from each other. From this, through independently machine-shaping respectively with first heat exchanger part 22 and second heat exchanger part 32, can reduce the processing degree of difficulty of first heat exchanger part 22 and second heat exchanger part 32, and through set up first water collector 24 between first heat exchanger part 22 and second heat exchanger part 32, the comdenstion water that produces on first heat exchanger part 22 can be received to first water collector 24, first water collector 24 can conveniently separate the inner chamber of casing 10 for the first chamber 11 and the second chamber 12 that holds that separate each other simultaneously, when first water collector 24 realizes receiving the effect of comdenstion water, can regard as the baffle to use, it holds the chamber 12 to have saved to set up the baffle in addition in casing 10 for the first chamber 11 and the second that hold that separate each other with the inner chamber of casing 10.

Optionally, the first heat exchanger element 22 is disposed above the second heat exchanger element 32, and a second water-tray 34 is disposed at the bottom of the second heat exchanger element 32, the second water-tray 34 being configured to receive the condensed water produced by the second heat exchanger element 32. The condensed water collected in the first drip tray 24 may be discharged to the second heat exchanger part 32 and flow down the second heat exchanger part 32 to the second drip tray 34, and the water in the second drip tray 34 may be discharged through the drain pipe 341.

Alternatively, where the first and second

heat exchanger elements

22, 32 are separately formed elements, the first and second

heat exchanger elements

22, 32 may be arranged in series, with the heat exchange tubes of the first heat exchanger element 22 being connected in series with the heat exchange tubes of the second heat exchanger element 32, the first and second

heat exchanger elements

22, 32 forming a larger, integrally controlled heat exchanger element; or, the first heat exchanger component 22 and the second heat exchanger component 32 are respectively independent formed parts, the first heat exchanger component 22 and the second heat exchanger component 32 can also be arranged in parallel, the heat exchange tubes of the first heat exchanger component 22 are connected with the heat exchange tubes of the second heat exchanger component 32 in parallel, and the first heat exchanger component 22 and the second heat exchanger component 32 can be respectively and independently controlled, so that one of the first heat exchanger component 22 and the second heat exchanger component 32 can be controlled to work or both the first heat exchanger component 22 and the second heat exchanger component 32 can be controlled to work according to the requirement of refrigeration/heating capacity.

According to other embodiments of the present invention, the first and second

heat exchanger members

22 and 32 are integrally formed, and the heat exchange tubes of the first and second

heat exchanger members

22 and 32 are integrally formed such that the first and second

heat exchanger members

22 and 32 are formed as a single body, in which case the heat exchange tubes of the first heat exchanger member 22 and the heat exchange tubes of the second heat exchanger member 32 may be considered as being connected in series. Thus, the process of forming and assembling the first and second

heat exchanger components

22 and 32 can be simplified.

In some alternative embodiments of the present invention, referring to fig. 6, 12-16, the first heat exchanger component 22 and the second heat exchanger component 32 are separately formed parts, and the heat exchange tubes of the first heat exchanger component 22 and the second heat exchanger component 32 are connected in series, the heat exchange tubes of the first heat exchanger component 22 and the second heat exchanger component 32 are communicated through a connection tube, a relief hole 241 penetrating through the first water collector 24 in an up-down direction is formed on the first water collector 24, and a part of the connection tube penetrates through the relief hole 241. Thus, by providing the connection pipe, the series connection of the heat exchange pipe of the first heat exchanger element 22 and the second heat exchanger element 32 can be easily achieved.

Optionally, referring to fig. 16, an avoiding hole 241 penetrates through a side wall of the first drip pan 24 to form a mounting hole 242, a connecting pipe is adapted to penetrate through the avoiding hole 241 through the mounting hole 242, and a detachable pressing cover 25 is covered at the mounting hole 242. Therefore, the connecting pipe is conveniently accommodated to the avoiding hole 241 through the mounting hole 242, the connecting pipe can be fixedly positioned through the arranged pressing cover 25, and the connecting pipe is detachably connected to the first water pan 24 through the pressing cover 25, so that the connecting pipe is convenient to disassemble and assemble and maintain, and the first heat exchanger part 22 and the second heat exchanger part 32 are convenient to disassemble and assemble.

According to some embodiments of the present invention, referring to fig. 6, 12-15, a first electric auxiliary heating element 23 is disposed in the first accommodating cavity 11, the first electric auxiliary heating element 23 is connected to the first heat exchanger component 22, and the first electric auxiliary heating elements 23 are plural and arranged along the up-down direction or the left-right direction; and/or a plurality of second electric auxiliary heating parts 33 are arranged in the second accommodating cavity 12, the second electric auxiliary heating parts 33 are connected to the second heat exchanger part 32, and the second electric auxiliary heating parts 33 are arranged along the vertical direction or the horizontal direction. For example, the first electric heater 23 may be provided only in the first housing chamber 11, the second electric heater 33 may be provided only in the second housing chamber 12, or the first electric heater 23 may be provided in the first housing chamber 11 and the second electric heater 33 may be provided in the second housing chamber 12. From this, through the first electric heat of assisting 23 and/or the second electric heat of assisting 33 that sets up, when the air conditioner heats, can improve heating efficiency and heating effect to through being a plurality of and along the upper and lower direction or the left and right direction arrange and/or second electric heat of assisting 33 is a plurality of and along the upper and lower direction or the left and right direction arrange first electric heat of assisting 23, can improve heating efficiency and can heat air homogeneous.

In some alternative embodiments of the present invention, referring to fig. 6, 12-15, a first electric auxiliary heating element 23 and first mounting brackets 27 disposed on opposite sides (e.g., left and right sides) of the first electric auxiliary heating element 23 are disposed in the first accommodating cavity 11, each first mounting bracket 27 is provided with a plurality of first positioning holes 271 arranged along a length direction (e.g., up and down direction) of the first mounting bracket 27, opposite ends of the first electric auxiliary heating element 23 are respectively provided with a first positioning column 231, the first positioning columns 231 are accommodated and fitted into the corresponding first positioning holes 271, the first heat exchanger component 22 includes a first heat exchanger 221 and first connecting plates 222 connected to left and right sides of the first heat exchanger 221, the two first mounting brackets 27 are respectively connected to the two first connecting plates 222, and the first connecting plates 222 are connected to the casing 10. Thus, the first mounting bracket 27 is provided to facilitate the mounting and fixing of the first electric auxiliary heating element 23, for example, the first electric auxiliary heating element 23 can be mounted and fixed on the first mounting bracket 27, and then the first mounting bracket 27 and the first electric auxiliary heating element 23 can be integrally mounted on the first heat exchanger component 22. Moreover, by arranging the first positioning hole 271 on the first mounting bracket 27, the first electric auxiliary heating element 23 can be conveniently mounted and fixed on the first mounting bracket 27 through the matching of the first positioning column 231 of the first electric auxiliary heating element 23 and the first positioning hole 271, and the replacement and maintenance of the first electric auxiliary heating element 23 are also facilitated. In addition, the first mounting bracket 27 is provided with a plurality of first positioning holes 271 arranged along the length direction of the first mounting bracket 27, so that a set number of first electric auxiliary heating elements 23 can be mounted as required, and the position of the first electric auxiliary heating elements 23 relative to the first mounting bracket 27 can be conveniently adjusted.

And/or, a second electric auxiliary heating element 33 and second mounting brackets 36 arranged on two opposite sides (for example, left and right sides) of the second electric auxiliary heating element 33 are arranged in the second accommodating cavity 12, each second mounting bracket 36 is provided with a plurality of second positioning holes 361 arranged along the length direction (for example, the vertical direction) of the second mounting bracket 36, two opposite ends of the second electric auxiliary heating element 33 are respectively provided with a second positioning column 331, the second positioning columns 331 are accommodated and matched in the corresponding second positioning holes 361, the second heat exchanger component 32 comprises a second heat exchanger 321 and second connecting plates 322 connected to the left and right sides of the second heat exchanger 321, the two second mounting brackets 36 are respectively connected with the two second connecting plates 322, and the second connecting plates 322 are connected with the machine shell 10. Thus, the second mounting bracket 36 is provided to facilitate mounting and fixing of the second electric auxiliary heater 33, and for example, the second electric auxiliary heater 33 may be mounted and fixed to the second mounting bracket 36, and then the second mounting bracket 36 and the second electric auxiliary heater 33 may be integrally mounted to the second heat exchanger member 32. Moreover, by providing the second positioning hole 361 on the second mounting bracket 36, the second positioning post 331 of the second electric auxiliary heating element 33 is matched with the second positioning hole 361, so that the second electric auxiliary heating element 33 can be conveniently mounted and fixed on the second mounting bracket 36, and the replacement and maintenance of the second electric auxiliary heating element 33 are also facilitated. In addition, the second mounting bracket 36 is provided with a plurality of second positioning holes 361 arranged along the length direction of the second mounting bracket 36, so that a set number of second electric auxiliary heating elements 33 can be mounted as required, and the position of the second electric auxiliary heating elements 33 relative to the second mounting bracket 36 can be conveniently adjusted.

An air conditioner according to an embodiment of a second aspect of the present invention is characterized by comprising: the air conditioning indoor unit 100 according to the first aspect of the present invention is described above.

According to the air conditioner provided by the embodiment of the invention, by arranging the air conditioner indoor unit 100, the cooling/heating effect can be ensured while the quality of indoor air is improved by introducing fresh air. And, can adjust indoor return air volume, can select whether to purify indoor air as required.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "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 invention. In this specification, the schematic representations of the terms used above do not necessarily 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.

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

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

the air conditioner comprises a machine shell, a first accommodating cavity and a second accommodating cavity are defined in the machine shell and are separated from each other, a first air return opening and a first air outlet which are communicated with the first accommodating cavity are formed in the machine shell, and a second air return opening, a third air return opening, a second air outlet and a fresh air inlet which are communicated with the second accommodating cavity are formed in the machine shell;

the indoor heat exchange unit is arranged in the first accommodating cavity and comprises a first fan assembly and a first heat exchanger component, and the first fan assembly can drive airflow to enter the first accommodating cavity from the first air return opening to exchange heat with the first heat exchanger component and blow out from the first air outlet;

the air treatment unit is arranged in the second accommodating cavity and comprises a second fan assembly, a second heat exchanger component and a purification component for purifying air, the purification component is adjacent to the second return air inlet and is arranged opposite to the second return air inlet, and the second fan assembly can drive airflow to enter the second accommodating cavity from the second return air inlet, the third return air inlet and the fresh air inlet to exchange heat with the second heat exchanger component and blow out from the second air outlet;

the first switch door can open and close the fresh air inlet and is movably arranged at the fresh air inlet;

the second switch door can open and close the second air return inlet and is movably arranged at the second air return inlet;

and the third switch door can be opened and closed at the third air return inlet and can be movably arranged at the third air return inlet.

2. An indoor unit of an air conditioner according to claim 1, wherein the first opening/closing door is slidably provided in the second accommodating chamber.

3. An indoor unit of an air conditioner according to claim 2, wherein a mounting frame is provided on an inner wall of the second accommodating chamber, the fresh air inlet is located on an inner peripheral side of the mounting frame, and a first driving mechanism for driving the first opening/closing door to slide is provided on the mounting frame.

4. An indoor unit of an air conditioner as claimed in claim 3, wherein sliding grooves are respectively formed on two opposite side walls of the mounting frame, and opposite ends of the first opening/closing door are slidably disposed on the corresponding sliding grooves.

5. An indoor unit of an air conditioner according to claim 3, wherein the first driving mechanism includes:

the motor is connected with and supported on the bottom side wall of the mounting frame;

a gear connected to an output shaft of the motor;

the rack is arranged on the first switch door and meshed with the gear.

6. An indoor unit of an air conditioner according to claim 1, wherein the second switching door is rotatably provided at the second air return opening, the second switching door includes a plurality of sub-switching doors arranged in a left-right direction or an up-down direction, each of the sub-switching doors is rotatable, and the third switching door is rotatably provided at the third air return opening.

7. An indoor unit of an air conditioner according to claim 1, wherein a mounting frame is provided on an inner wall of the second accommodating chamber, the fresh air inlet and the second air return opening are both located on an inner peripheral side of the mounting frame, a first driving mechanism for driving the first door opening and closing to move is provided on the mounting frame, and a second driving mechanism for driving the second door opening and closing to move is provided on the mounting frame.

8. An indoor unit of an air conditioner according to claim 1, wherein the second return air inlet is provided above the fresh air inlet, and the third return air inlets are provided on left and right sides of the fresh air inlet.

9. An indoor unit according to claim 8, wherein the fresh air inlet is provided opposite to the cleaning member.

10. An indoor unit of an air conditioner according to claim 1, wherein the first outlet and the second outlet are located on a front side of the casing, and the first outlet and the second outlet are arranged in a vertical direction or a horizontal direction, or the second outlet is located on an outer peripheral side of the first outlet.

11. An indoor unit of an air conditioner according to claim 1, wherein the first fan assembly includes at least one of an axial flow wind wheel, a counter-rotating wind wheel and a diagonal flow wind wheel, and the second fan assembly includes a centrifugal wind wheel.

12. The indoor unit of claim 1, wherein the first outlet includes at least one first sub-outlet group, each first sub-outlet group includes a plurality of first sub-outlets, the second outlet includes at least one second sub-outlet group, each second sub-outlet group includes a plurality of second sub-outlets, and the first sub-outlet group and the second sub-outlet group are arranged in an up-down direction or a left-right direction.

13. An indoor unit of an air conditioner as claimed in claim 12, wherein a first air guide member is provided in the first sub air outlet, a second air guide member is provided in the second sub air outlet, and an air guide structure of the first air guide member is the same as an air guide structure of the second air guide member.

14. An indoor unit of an air conditioner according to claim 12, wherein the first air outlet includes at least two first sub air outlet groups arranged in an up-down direction, the first fan assembly includes a plurality of first wind wheels, the number of the first wind wheels is the same as that of the first sub air outlets and corresponds to the first sub air outlets one by one, the first wind wheels corresponding to the first sub air outlet group positioned at the uppermost position are counter-rotating wind wheels, the first wind wheels corresponding to the first sub air outlet group positioned at the lowermost position are axial flow wind wheels or diagonal flow wind wheels, and the second fan assembly includes a second wind wheel.

15. An indoor unit of an air conditioner according to claim 1, wherein the second fan assembly is provided upstream of the second heat exchanger member in a flow direction of the air flow.

16. The indoor unit of claim 1, wherein an included angle is formed between the first heat exchanger element and the second heat exchanger element, the second heat exchanger element extends forwards in a direction from top to bottom so as to divide the second accommodating chamber into an air inlet chamber and an air outlet chamber, the fresh air inlet, the second air return opening and the third air return opening are formed in a side wall of the air inlet chamber, and the second air outlet is formed in a side wall of the air outlet chamber.

17. An indoor unit of an air conditioner according to claim 16, wherein the first heat exchanger element extends in a vertical direction, and the second heat exchanger element is inclined at an angle ranging from 10 ° to 45 ° to the vertical direction.

18. An indoor unit of an air conditioner according to claim 1, wherein the first heat exchanger element and the second heat exchanger element are respectively independent formed pieces, a first water pan is provided between the first heat exchanger element and the second heat exchanger element, and the first water pan divides the inner cavity of the cabinet into the first accommodating chamber and the second accommodating chamber which are separated from each other; alternatively, the first heat exchanger component and the second heat exchanger component are integrally formed.

19. The indoor unit of an air conditioner according to claim 18, wherein the first heat exchanger member and the second heat exchanger member are independent formed members, the heat exchange tube of the first heat exchanger member and the heat exchange tube of the second heat exchanger member are connected in series, the heat exchange tube of the first heat exchanger member and the heat exchange tube of the second heat exchanger member are communicated through a connection tube, an avoiding hole penetrating through the first water pan in an up-down direction is formed in the first water pan, and a part of the connection tube penetrates through the avoiding hole.

20. An indoor unit of an air conditioner according to claim 19, wherein the avoiding hole penetrates through a side wall of the first drip pan to form a mounting hole, the connecting pipe is adapted to be inserted into the avoiding hole through the mounting hole, and a detachable pressing cover covers the mounting hole.

21. An indoor unit of an air conditioner according to any one of claims 1 to 20, wherein a first electric auxiliary heating member is provided in the first accommodating chamber, the first electric auxiliary heating member is connected to the first heat exchanger member, and the first electric auxiliary heating member is plural and arranged in an up-down direction or a left-right direction;

and/or a second electric auxiliary heating piece is arranged in the second accommodating cavity, the second electric auxiliary heating piece is connected to the second heat exchanger component, and the second electric auxiliary heating pieces are arranged in a plurality of directions up and down or left and right.

22. An indoor unit of an air conditioner as claimed in claim 21, wherein the first accommodating chamber is provided with the first electric auxiliary heating element and first mounting brackets arranged at opposite sides of the first electric auxiliary heating element, each first mounting bracket is provided with a plurality of first positioning holes arranged along the length direction of the first mounting bracket, opposite ends of the first electric auxiliary heating element are provided with first positioning columns, the first positioning columns are accommodated and matched in the corresponding first positioning holes, the first heat exchanger component comprises a first heat exchanger and first connecting plates connected to the left and right sides of the first heat exchanger, the two first mounting brackets are respectively connected with the two first connecting plates, and the first connecting plates are connected with the casing;

and/or, the second holding cavity is internally provided with the second electric auxiliary heating part and second mounting supports arranged at two opposite sides of the second electric auxiliary heating part, each second mounting support is provided with a plurality of second positioning holes distributed along the length direction of the second mounting support, the two opposite ends of the second electric auxiliary heating part are provided with second positioning columns, the second positioning columns are matched with the corresponding second positioning holes in the second positioning holes, the second heat exchanger part comprises a second heat exchanger and second connecting plates connected at the left side and the right side of the second heat exchanger, the two second mounting supports are respectively connected with the two second connecting plates, and the second connecting plates are connected with the casing.

23. An air conditioner, comprising: the indoor unit of an air conditioner according to any one of claims 1 to 22.