CN115682144A

CN115682144A - Air conditioner indoor unit and air conditioner

Info

Publication number: CN115682144A
Application number: CN202211266731.1A
Authority: CN
Inventors: 崔化超; 郝本华; 李国行
Original assignee: Qingdao Haier Air Conditioner Gen Corp Ltd; Qingdao Haier Air Conditioning Electric Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Air Conditioner Gen Corp Ltd; Qingdao Haier Air Conditioning Electric Co Ltd; Haier Smart Home Co Ltd
Priority date: 2022-10-17
Filing date: 2022-10-17
Publication date: 2023-02-03

Abstract

The application belongs to the technical field of household appliances, and particularly relates to an air conditioner indoor unit and an air conditioner. The air conditioner aims at solving the problem that the existing air conditioner can only adjust the air in a single space and introduce the fresh air and the indoor air with large temperature difference. The air-conditioning indoor unit of the air conditioner comprises a cabinet body, a first air duct, a second air duct, a reversing air duct, a driving mechanism, a fresh air duct and an air mixing air duct, wherein the driving mechanism is configured to drive the reversing air duct to rotate relative to the first air duct so as to enable the reversing air duct to be communicated with the second air duct, and therefore the air-conditioning indoor unit can adjust the air temperature in a first space and the air temperature in a second space at the same time; or, so that the reversing air duct is communicated with the air mixing air duct, the air after outdoor fresh air and indoor heat exchange is mixed in the air mixing air duct and then blown into the first space, the temperature difference between the fresh air and the indoor air is reduced, and the improvement of the user experience is facilitated.

Description

Air conditioner indoor unit and air conditioner

Technical Field

The application belongs to the technical field of household appliances, and particularly relates to an air conditioner indoor unit and an air conditioner.

Background

An air conditioner is a set for providing air temperature change for a space region, and has the function of adjusting parameters such as temperature, humidity, cleanliness, air flow rate and the like of air in a room (or a closed space or a region), so that the air conditioner becomes a necessary household appliance in a user home.

Existing air conditioners generally condition air in only a single space. For example, a cabinet air conditioner is generally installed in a living room to condition air in the living room. Because the area of the living room is usually larger, the cabinet air conditioner in the living room has weaker refrigerating or heating effect on the bedroom. In the related art, a hanging type air conditioner is usually installed in a bedroom, so that the cost is increased, and the installation space is large. Moreover, a fresh air device is additionally arranged to introduce fresh air into the room, but the temperature difference between the introduced fresh air and the indoor air is large, so that the refrigeration and heating effects of the air conditioner are affected.

Disclosure of Invention

In order to solve the problems in the prior art, namely to solve the problems that the existing air conditioner can only adjust the air in a single space and introduce fresh air and the temperature difference between the fresh air and the indoor air is large, the application provides an air conditioner indoor unit and an air conditioner.

The air-conditioning indoor unit comprises:

the cabinet body is arranged in a first indoor space, and a first air outlet, a third air outlet and an air inlet are formed in the cabinet body;

the first air duct is respectively communicated with the first air outlet and the air inlet, a first through-flow fan and an indoor heat exchanger which are vertically arranged are arranged in the first air duct, and the indoor heat exchanger is positioned between the air inlet and the first through-flow fan; the first through-flow fan is configured to blow air through the first air outlet towards the first space; the bottom of the first air duct is provided with a first connecting port;

the reversing air duct is provided with a second connecting port and a third connecting port, and the second connecting port is communicated with the first connecting port; a first fan is arranged in the reversing air duct;

the second air duct is provided with a second air outlet, the second air outlet is positioned in a second space in the room, and the second space and the first space are separated by a wall body;

the fresh air duct is provided with a fresh air inlet and a fresh air outlet, and a second fan is arranged in the fresh air duct;

a first end of the air mixing air duct is communicated with the third air outlet, a second end of the air mixing air duct is provided with a fourth connector and a fifth connector, and the fourth connector is communicated with the fresh air outlet;

the driving mechanism is configured to drive the reversing air duct to rotate relative to the first air duct so as to enable the third connecting port to be communicated with the second air duct, and the first fan is configured to blow air towards the second space through the second air outlet; or the third connecting port is communicated with the fifth connecting port, and after the air in the reversing air duct and the fresh air duct is mixed in the air mixing air duct, the air is blown out towards the first space through the third air outlet.

In an optional technical scheme of the air conditioner indoor unit, the driving mechanism includes a driving motor and a transmission assembly, and the driving motor drives the reversing air duct to rotate relative to the first air duct through the transmission assembly.

In an optional technical scheme of the indoor unit of the air conditioner, the reversing air duct includes a vertical connecting portion and a horizontal reversing portion, one end of the vertical connecting portion forms the second connecting port and is communicated with the first connecting port, the other end of the vertical connecting portion is communicated with the horizontal reversing portion, and the horizontal reversing portion forms the third connecting port; the first fan is installed on the horizontal reversing part.

In an optional technical scheme of the indoor unit of an air conditioner, the transmission assembly includes a first gear and a second gear that are engaged with each other, the first gear is fixed on an output shaft of the driving motor, and the second gear is fixed on an outer side of the vertical connecting portion.

In an optional technical scheme of the indoor unit of the air conditioner, the first fan includes a first motor and a first impeller, the first impeller is fixed on an output shaft of the first motor, and the first impeller is opposite to the third connecting port; the first motor is fixed in the horizontal reversing part, and an output shaft of the first motor is arranged along the horizontal direction.

In an optional technical solution of the indoor unit of an air conditioner, the second fan includes a casing and a driving part installed in the casing, an air outlet port and an air inlet port are formed on the casing, and the casing is configured to form a part of an inner wall of the fresh air duct; the fresh air duct also comprises a first pipe section and a second pipe section, wherein the first end of the first pipe section forms the fresh air outlet and is communicated with the fourth connecting port, and the second end of the first pipe section is communicated with the air outlet port; the first end of the second pipe section is communicated with the air inlet, and the second end of the second pipe section forms the fresh air inlet.

In an optional technical scheme of the air conditioner indoor unit, the air mixing duct has at least one bent section.

In an optional technical scheme of the indoor unit of the air conditioner, a first sealing ring is arranged at the third connecting port; the second air duct is provided with a second sealing ring; when the third connecting port is communicated with the second air duct, the first sealing ring and the second sealing ring are abutted and sealed; and a third sealing ring is arranged at the fifth connecting port, and when the third connecting port is communicated with the fifth connecting port, the third sealing ring is abutted and sealed with the first sealing ring.

In an optional technical scheme of the indoor unit of the air conditioner, the first air outlet is provided with a first air outlet grid, the second air outlet is provided with a second air outlet grid, and the third air outlet is provided with a third air outlet grid.

The air conditioner includes: the outdoor air conditioner unit is communicated with an indoor heat exchanger of the indoor air conditioner unit through a refrigerant connecting pipe.

The technical personnel in the field can understand that the air-conditioning indoor unit of the air conditioner comprises a cabinet body, a first air duct, a second air duct, a reversing air duct, a driving mechanism, a fresh air duct and an air mixing air duct, wherein the cabinet body is arranged in a first indoor space, and a first air outlet, a third air outlet and an air inlet are formed in the cabinet body; the first air channel is positioned in the cabinet body and is respectively communicated with the first air outlet and the air inlet, a first through-flow fan and an indoor heat exchanger which are vertically arranged are arranged in the first air channel, and the indoor heat exchanger is positioned between the first through-flow fan and the air inlet and is used for exchanging heat with air flowing through and playing a role in reducing or increasing the temperature of the air; the first through-flow fan is configured to blow air into the first space through the first air outlet, and plays a role in adjusting the temperature of the air in the first space.

The bottom of the first air channel is provided with a first connecting port which is communicated with a second connecting port of the reversing air channel, a first fan is arranged in the reversing air channel, and the first fan is used for transmitting air in the first air channel to a third connecting port of the reversing air channel. The second air duct is provided with a second air outlet, the second air outlet is positioned in a second space in the room, and the second space and the first space are separated by a wall body. A second fan is arranged in the fresh air duct, a fresh air inlet of the fresh air duct is arranged outdoors, and a fresh air outlet of the fresh air duct is communicated with a fourth connecting port of the air mixing duct; the air mixing duct is communicated with the third air outlet.

The driving mechanism is configured to drive the reversing air duct to rotate relative to the first air duct so as to enable the third connecting port to be communicated with the second air duct, the first through-flow fan is configured to blow air towards the first space through the first air outlet, and the first fan is configured to blow air towards the second space through the second air outlet so as to adjust the air temperature in the first space and the air temperature in the second space simultaneously. So, the air conditioning indoor unit of this application embodiment can blow in the space of two differences of orientation simultaneously, need not to set up two air conditioners, not only does benefit to reduce cost, still does benefit to and reduces installation occupation space.

The driving mechanism drives the reversing air channel and a first fan inside the reversing air channel to rotate relative to the first air channel, so that the third connecting port is communicated with the fifth connecting port, the first through-flow fan, the first fan and the second fan are all configured to be started, and air after heat exchange with the indoor heat exchanger enters the air mixing air channel through the first air channel and the reversing air channel under the action of the first through-flow fan and the first fan; outdoor new trend gets into the wind channel that mixes through the new trend wind channel under the effect of second fan, from this, mixes the back at the wind channel that mixes with air and new trend after indoor heat exchanger heat transfer, blows to indoorly through the third air outlet, reduces the difference in temperature of new trend and indoor air temperature, does benefit to and improves user experience degree.

Drawings

An air conditioning indoor unit and an air conditioner according to an embodiment of the present application are described below with reference to the accompanying drawings. The attached drawings are as follows:

FIG. 1 is a schematic diagram of an air conditioner provided in an embodiment of the present application;

fig. 2 is a schematic structural diagram of an indoor unit of an air conditioner provided in an embodiment of the present application;

fig. 3 is a schematic view of a bottom air duct structure of an indoor unit of an air conditioner according to an embodiment of the present application;

fig. 4 is a schematic structural view of a reversing air duct and a first fan of an indoor unit of an air conditioner provided in an embodiment of the present application;

fig. 5 is a schematic gas flow direction diagram of an air conditioning indoor unit in a first state according to an embodiment of the present application;

fig. 6 is a schematic gas flow direction diagram of an air conditioning indoor unit in a second state according to an embodiment of the present application;

fig. 7 is a schematic view of an air conditioning indoor unit according to another embodiment of the present application.

In the drawings: 100: an air-conditioning indoor unit; 110: a cabinet body; 111: a first air outlet; 112: an air inlet; 113: a third air outlet; 120: a first air duct; 121: a first through-flow fan; 122: an indoor heat exchanger; 130: a second air duct; 140: a reversing air duct; 141: a first fan; 1411: a first motor; 1412: a first impeller; 142: a second connection port; 143: a third connection port; 144: a vertical connecting portion; 145: a horizontal commutation section; 1451: mounting a plate; 1452: an air duct wall; 150: a drive mechanism; 151: a drive motor; 152: a transmission assembly; 1521: a first gear; 1522: a second gear; 160: a fresh air duct; 161: a second fan; 1611: a housing; 162: a first tube section; 163: a second tube section; 170: a body; 171: a second cross-flow fan; 180: a mixed air duct; 181: a fifth connection port; 200: an air conditioner outdoor unit; 310: a first space; 320: a second space; 330: a wall body; 340: and (4) outdoors.

Detailed Description

First, it should be understood by those skilled in the art that these embodiments are merely for explaining technical principles of the embodiments of the present application, and are not intended to limit the scope of the embodiments of the present application. And can be adjusted as needed by those skilled in the art to suit particular applications.

Furthermore, it should be noted that in the description of the embodiments of the present application, the terms of direction or positional relationship indicated by the terms "inside" and "outside" and the like are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or member must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, should not be construed as limiting the embodiments of the present application.

Furthermore, it should be noted that, in the description of the embodiments of the present application, unless explicitly stated or limited otherwise, the terms "connected" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; the two components can be directly connected or indirectly connected through an intermediate medium, and the two components can be communicated with each other. The specific meanings of the above terms in the examples of the present application can be understood by those skilled in the art as appropriate.

Existing air conditioners generally condition air in only a single space. For example, a cabinet air conditioner is generally installed in a living room to condition air in the living room. Because the area of the living room is usually larger, the cabinet air conditioner in the living room has weaker refrigerating or heating effect on the bedroom. In the related art, a hanging type air conditioner is usually installed in a bedroom, so that the cost is increased, and the installation space is large. Moreover, fresh air equipment needs to be additionally arranged to introduce fresh air indoors, but the temperature difference between the introduced fresh air and indoor air is large, and the refrigeration and heating effects of the air conditioner are affected.

In view of this, an embodiment of the present application provides an indoor unit of an air conditioner, which includes a first air duct, an air mixing duct, a second air duct, a reversing duct, and a fresh air duct, wherein a cross-flow fan is installed in the first air duct; the air mixing duct is communicated with a first air outlet arranged at the front side of the cabinet body in the first space; the second air duct is provided with a second air outlet, and the second air outlet is positioned in the second space; a second fan is arranged in the fresh air duct, one end of the fresh air duct is communicated with the outside, and the other end of the fresh air duct is communicated with the air mixing duct; a first fan is arranged in the reversing air duct, the top end of the reversing air duct is communicated with the first air duct, the reversing air duct is driven by the driving mechanism to rotate relative to the first air duct, and when the reversing air duct is communicated with the second air duct, the indoor unit of the air conditioner can introduce cold air or warm air into the second space through the second air duct to play a role in adjusting the temperature in the second space; when the reversing air duct is communicated with the air mixing air duct, air adjusted by the indoor unit of the air conditioner is mixed with outdoor fresh air and then blown into the first space, so that the temperature difference between the outdoor fresh air and the indoor air is reduced, and the user experience is improved.

The following describes optional technical solutions of an air conditioner indoor unit and an air conditioner according to an embodiment of the present application with reference to the drawings.

Fig. 1 is a schematic diagram of an air conditioner provided in an embodiment of the present application.

With reference to fig. 1, an air conditioner according to an embodiment of the present application includes: the outdoor unit 200 is connected to an indoor heat exchanger of the indoor unit 100 via a refrigerant connection pipe.

It is understood that the compressor, the four-way reversing valve, the outdoor heat exchanger and the throttling device in the outdoor unit 200 and the indoor heat exchanger in the indoor unit 100 are connected to form an air conditioning refrigerant circulation loop, and the compressor, the four-way reversing valve and the throttling device may be disposed in the indoor unit 100 or in the outdoor unit 200.

The outdoor unit 200 is installed in the outdoor space 340, and the indoor unit 100 is installed in the first indoor space 310. The air conditioning indoor unit 100 according to the embodiment of the present application may adjust the temperature in not only the first space 310 but also the second space 320. The first space 310 and the second space 320 are separated by a wall 330, and the term "wall" is understood broadly herein to mean a building wall such as masonry, or a partition such as a wood board or a plastic board.

The air conditioner of the embodiment of the present application can simultaneously perform temperature adjustment on two separated spaces, for example, the first space 310 may be a living room, and the second space 320 may be a bedroom; the first space 310 and the second space 320 may also be two adjacent bedrooms separated by a wall.

The following describes specific structures and functions of an air conditioning indoor unit 100 according to an embodiment of the present invention with reference to the drawings.

Fig. 2 is a schematic structural diagram of an indoor unit of an air conditioner provided in an embodiment of the present application; fig. 3 is a schematic view of a bottom air duct structure of an indoor unit of an air conditioner according to an embodiment of the present application; fig. 4 is a schematic structural view of a reversing air duct and a first fan of an indoor unit of an air conditioner according to an embodiment of the present disclosure.

With reference to fig. 2, the air conditioner indoor unit according to the embodiment of the present application includes: the cabinet 110, the first air duct 120, the second air duct 130, the reversing air duct 140, the fresh air duct 160, the mixed air duct 180, and the driving mechanism 150.

Wherein, the cabinet body 110 is installed in the first space 310 indoors; the cabinet body 110 is provided with a third air outlet 113 and an air inlet 112, the third air outlet 113 is used for blowing air towards the first space 310, and is generally arranged on the front panel of the cabinet body 110; the third air outlet 113 may be a strip extending vertically, which is beneficial to increasing the air outlet area. A third air outlet grille is installed in the third air outlet 113 and connected with the driving part, and the third air outlet grille rotates under the action of the driving part, so that the air outlet direction of the third air outlet 113 is adjusted, and the air at the third air outlet 113 is prevented from being directly blown to the body of a person.

The air inlet 112 is used for air inlet and is generally disposed on the back surface of the cabinet 110 facing the wall 330. In the drawings, the cabinet 110 is shown to have a substantially rectangular parallelepiped shape, but this is not a limitation on the shape of the cabinet 110, and the cabinet 110 may have a cylindrical shape, for example.

Still be provided with first air outlet 111 on the cabinet body 110 of this application embodiment, first air outlet 111 can be for following the rectangular shape of vertical extension, does benefit to and improves the air-out area. In the embodiment of the present application, the first air outlet 111 is located above the third air outlet 113, but this is not a limitation on the relative positions of the third air outlet 113 and the first air outlet 111. The first outlet 111 communicates with the first air duct 120, a first through-flow fan 121 is installed in the first air duct 120, and the first through-flow fan 121 is configured to blow air into the first space 310 through the first outlet 111. The first air outlet 111 is provided with a first air outlet grille, the first air outlet grille is in transmission connection with the driving part, the first air outlet grille rotates under the action of the driving part, the air outlet direction of the first air outlet 111 can be adjusted, and air at the first air outlet 111 is prevented from being directly blown onto a person.

The first air duct 120 is disposed in the cabinet 110, the first air duct 120 is communicated with the air inlet 112, and the first air duct 120 is communicated with the first air outlet 111; thus, when the temperature in the first space 310 needs to be adjusted and fresh air does not need to be introduced into the first space 310, the air entering the first air duct 120 from the air inlet 112 can be exhausted through the first air outlet 111 by the first through-flow fan 121.

A first through-flow fan 121 is disposed in the first air duct 120 in a vertical arrangement, and the first through-flow fan 121 is used for conveying air from the air inlet 112 to the third air outlet 113 or the reversing air duct 140 through the first air duct 120. An indoor heat exchanger 122 is further disposed between the air inlet 112 and the first through-flow fan 121, and the indoor heat exchanger 122 exchanges heat with air flowing therethrough to reduce or increase the temperature of the air. When the air conditioner is refrigerating, the indoor heat exchanger 122 functions as an evaporator; the indoor heat exchanger 122 functions as a condenser when the air conditioner heats. Optionally, the indoor heat exchanger 122 may be designed as a microchannel heat exchanger, which is beneficial to improving heat exchange efficiency and reducing the volume of the heat exchanger. Of course, the manner of using the microchannel heat exchanger is merely an example of the embodiment of the present application, and in the practical application, other types of heat exchangers may also be used, and are not limited herein.

The bottom end of the first air duct 120 is connected to a reversing air duct 140, and referring to fig. 2 in particular, the bottom of the first air duct 120 is provided with a first connection port, the reversing air duct 140 has a second connection port 142 and a third connection port 143, wherein the second connection port 142 is communicated with the first connection port. It should be noted that the reversing air duct 140 is capable of rotating relative to the first air duct 120, the reversing air duct 140 is communicated with the bottom end of the first air duct 120, for example, a sealing ring is disposed between the second connection port 142 and the first connection port, and the second connection port 142 is capable of rotating relative to the first connection port.

With continued reference to fig. 2, the reversing air duct 140 includes a vertical connecting portion 144 and a horizontal reversing portion 145, wherein one end of the vertical connecting portion 144 forms a second connecting port 142 to communicate with the first connecting port, the other end of the vertical connecting portion 144 communicates with the horizontal reversing portion 145, and the horizontal reversing portion 145 forms a third connecting port 143. In this embodiment, the second connection port 142 is disposed at the top end of the vertical connection portion 144, and the bottom end of the vertical connection portion 144 is communicated with the horizontal direction-changing portion 145; the opening direction of the third connection port 143 is perpendicular to the opening direction of the second connection port 142, and is conveniently communicated with the second air duct 130 or the air mixing duct 180 arranged in the horizontal direction.

Referring to fig. 3, a first fan 141 is disposed in the reversing air duct 140, and specifically, the first fan 141 is mounted on the horizontal reversing portion 145, so as to conveniently drive the air in the horizontal reversing portion 145 to flow toward the second air duct 130 or the mixed air duct 180.

As shown in fig. 3, the horizontal direction changing part 145 includes a duct wall 1452 extending in a horizontal direction and a mounting plate 1451 provided at an end of the duct wall 1452, wherein the duct wall 1452 defines a cylinder extending in a horizontal direction and having both ends open, the mounting plate 1451 is mounted at one end of the cylinder, and the other end of the cylinder forms the third connection port 143; the air duct wall 1452 communicates with the vertical connecting portion 144. The mounting plate 1451 is used to mount the first fan 141.

The first fan 141 may be an axial flow fan, and specifically, the first fan 141 includes a first motor 1411 and a first impeller 1412, the first motor 1411 is fixed to the mounting plate 1451, an output shaft of the first motor 1411 extends in a horizontal direction, and an output shaft of the first motor 1411 is fixedly connected to the first impeller 1412. The first impeller 1412 is opposite to the third connection port 143, so that the first motor 1411 drives the first impeller 1412 to rotate, so that the air in the reversing air duct 140 flows into the second air duct 130 or the mixed air duct 180 through the third connection port 143. Of course, the first fan 141 is not limited to an axial flow fan, for example, the first fan 141 may also be a centrifugal fan, and the extending direction of the reversing air duct 140 is adapted to the air inlet and outlet directions of the centrifugal fan.

Fig. 5 is a schematic gas flow direction diagram of an air conditioning indoor unit in a first state according to an embodiment of the present application; fig. 6 is a schematic view of a gas flow direction in a second state of the air conditioning indoor unit according to the embodiment of the present application. In the first state, the air-conditioning indoor unit adjusts the air temperature in the first space 310 and introduces fresh air into the first space 310; the air conditioning indoor unit in the second state simultaneously adjusts the air temperatures in the first space 310 and the second space 320. In fig. 5 and fig. 6, the left side of the vertical wall 330 is provided with an indoor unit of an air conditioner, which is a first space 310, and the right side is provided with a second space 320; the upper side of the horizontal wall 330 is indoor, the lower side is outdoor 340, and the outdoor unit of the air conditioner is installed.

With reference to fig. 5 and 6, the second air duct 130 of the embodiment of the present application has a second air outlet, and the second air outlet is located in the indoor second space 320, so that under the action of the first through-flow fan 121 and the first fan 141, air after exchanging heat with the indoor heat exchanger 122 passes through the first air duct 120, the reversing air duct 140 and the second air duct 130, and is blown to the second space 320 through the second air outlet, so as to adjust the temperature of the air in the second space 320.

In order to ensure the sealing property when the second air duct 130 is communicated with the third connecting port 143 of the reversing air duct 140, a second sealing ring is arranged at the second air duct 130, and the third connecting port 143 is provided with a first sealing ring; when the second air duct 130 is communicated with the third connection port 143, the second sealing ring is abutted and sealed with the first sealing ring, which is beneficial to ensuring the sealing performance of the connection part of the second air duct 130 and the reversing air duct 140, and avoiding the influence of air leakage on the refrigerating or heating effect. Wherein, first sealing washer and second sealing washer can be sealing members such as silica gel circle, rubber circle.

Fig. 7 is a schematic view of an air conditioning indoor unit according to another embodiment of the present application. Referring to fig. 7, in some embodiments, the second air duct 130 further includes a body 170, and the body 170 is installed in the second space 320 in the room; a second cross flow fan 171 is installed in the body 170, and a second air outlet is disposed on the body 170. In the embodiment of the present application, the second cross flow fan 171 is added to increase power for the air flowing in the second air duct 130, which is beneficial to improving the air speed output by the second air outlet. In addition, corresponding to the second cross flow fan 171, the second air outlet is a strip-shaped opening extending along the vertical direction of the body 170, which is beneficial to increasing the air outlet area.

Further, a second air outlet grid is arranged in the second air outlet; the indoor air conditioner unit of this embodiment further includes a driving component, the driving component is installed in the machine body 170, and the driving component is in transmission connection with the second air outlet grille, and the driving component is configured to drive the second air outlet grille to swing so as to adjust the air outlet direction. The driving means may comprise a motor, a rack gear, etc.

This application embodiment sets up the air-out grid through setting up the air-out grid at the second air outlet to set up actuating mechanism drive air-out grid swing and adjust the air-out direction of second air outlet, convenience of customers adjusts the air-out direction, avoids the air of second air outlet to blow directly on one's body the people.

In the air-conditioning indoor unit according to the embodiment of the present application, the first through-flow fan 121 in the first air duct 120 is utilized to adjust the air temperature in the first space 310 through the first air outlet 111; by arranging the reversing air duct 140 at the bottom of the first air duct 120 and arranging the first fan 141 in the reversing air duct 140, when the reversing air duct 140 is communicated with the second air duct 130, the first fan 140 blows air towards the second space 320 through the second air outlet; so, the air conditioning indoor unit of this application embodiment can blow towards two different spaces simultaneously, need not to set up two air conditioners, not only does benefit to reduce cost, still does benefit to and reduces installation occupation space.

In addition, the air conditioner indoor unit of the embodiment of the application further has a fresh air function. With reference to fig. 2 and 3, in the indoor unit of an air conditioner according to the embodiment of the present application, a fresh air duct 160 is further disposed in the cabinet body 110, the fresh air duct 160 has a fresh air inlet and a fresh air outlet, the fresh air inlet is disposed outdoors 340, and the fresh air outlet is communicated with the indoor first space 310 through an air mixing duct 180; a second fan 161 is disposed in the fresh air duct 160, and the second fan 161 is configured to blow in fresh air toward the first space 310 through the fresh air outlet.

The second fan 161 includes a casing 1611 and a driving part installed in the casing 1611, the casing 1611 is formed with an air outlet port and an air inlet port, the air inlet port is communicated to the outdoor space 340, and the air outlet port is communicated with the air mixing duct 180. The housing 1611 is configured to form a portion of the interior walls of the fresh air duct 160. The driving part is used as a power part for driving the air to flow, and can comprise a second motor and a second impeller in transmission connection with the second motor, and the second impeller is driven to rotate by the second motor to form air flow. The second motor is fixed in the housing 1611, for example, the motor is fixed in the housing 1611 by a fastener such as a screw or a bolt, and the connection is stable and reliable.

The fresh air duct 160 further comprises a first pipe segment 162 and a second pipe segment 163, a fresh air outlet formed at a first end of the first pipe segment 162 is communicated with the air mixing duct 180, and a second end of the first pipe segment 162 is communicated with the air outlet port; the first end of the second tube section 163 communicates with the air inlet port and the second end of the second tube section 163 forms the fresh air inlet. Wherein, the first pipe section 162 can be arranged in the horizontal direction, so as to be conveniently communicated with the air mixing duct 180; at least a portion of the second tube section 163 is vertically disposed to facilitate communication with an air inlet port of the second fan 161. Of course, this is not a limitation to the extending direction of the first pipe segment 162 and the second pipe segment 163, and those skilled in the art may also arrange the orientation of the fresh air duct 160 according to the internal structure of the air conditioner indoor unit. Thus, the first pipe section 162, the housing 1611 of the second fan 161, and the second pipe section 163 form the fresh air duct 160.

In order to avoid the difference between the fresh air blown into the first space 310 and the indoor temperature being too large, the air-conditioning indoor unit of the embodiment of the present application is further provided with an air mixing duct 180 for mixing the air after heat exchange by the indoor heat exchanger 122 and the outdoor fresh air so as to reduce the temperature difference between the fresh air and the indoor air.

Referring to fig. 2 and 3 again, the first end of the air mixing duct 180 is communicated with the third air outlet 113, the second end of the air mixing duct 180 is provided with a fourth connecting port and a fifth connecting port 181, and the fourth connecting port is communicated with the fresh air outlet of the fresh air duct 160 to introduce fresh air; the fifth connection port 181 is used for communicating with the reversing air duct 140 to introduce the air after heat exchange by the indoor heat exchanger 122, so that the fresh air and the air after heat exchange are mixed in the air mixing air duct 180 and then blown into the room through the third air outlet 113, thereby reducing the temperature difference between the fresh air and the indoor air and improving the user experience.

In order to ensure the sealing performance when the fifth connecting port 181 of the air mixing duct 180 is communicated with the third connecting port 143 of the reversing duct 140, a third sealing ring is arranged at the fifth connecting port 181, and when the fifth connecting port 181 is communicated with the third connecting port 143, the third sealing ring is abutted and sealed with the first sealing ring at the third connecting port 143, so that the sealing performance at the connecting position of the air mixing duct 180 and the reversing duct 140 is ensured, and the refrigerating or heating effect is prevented from being influenced by gas leakage. Wherein, the third sealing washer can be sealing members such as silica gel circle, rubber circle.

Optionally, the air mixing duct 180 has at least one curved section, for example, the air mixing duct 180 includes an arc-shaped section duct, a U-shaped section duct, or an irregularly-shaped curved section duct, so as to improve the circulation path of the fresh air and the indoor air, and further facilitate improving the mixing effect.

The driving mechanism 150 of the embodiment of the application drives the reversing air duct 140 and the first fan 141 inside the reversing air duct to rotate relative to the first air duct 120, so that the third connection port 143 is communicated with the fifth connection port 181, the first through-flow fan 121, the first fan 141 and the second fan 161 are all configured to be started, and air after heat exchange with the indoor heat exchanger 122 enters the air mixing air duct 180 through the first air duct 120 and the reversing air duct 140 under the action of the first through-flow fan 121 and the first fan 141; under the action of the second fan, the outdoor fresh air enters the air mixing duct 180 through the fresh air duct 160, specifically referring to fig. 5, in fig. 5, a dashed line represents a flow direction of indoor air, and a dotted line represents a flow direction of the outdoor fresh air. From this, air and new trend after with indoor heat exchanger 122 heat transfer mix the back in air mixing duct 180, blow to indoor via third air outlet 113, reduce the difference in temperature of new trend and room air temperature, do benefit to and improve user experience degree. At the moment, the indoor unit of the air conditioner is in the first state.

The driving mechanism 150 of the embodiment of the application is configured to drive the reversing air duct 140 and the first fan 141 inside the reversing air duct 140 to rotate relative to the first air duct 120, so that the third connection port 143 of the reversing air duct 140 communicates with the second air duct 130, specifically referring to fig. 6, the first through-flow fan 121 is configured to blow air into the first space 310 through the first air outlet 111, and the first fan 141 is configured to blow air into the second space 320 through the second air outlet, so as to adjust the air temperatures in the first space 310 and the second space 320 at the same time. At the moment, the indoor unit of the air conditioner is in a second state.

Of course, the indoor unit of the air conditioner may also be in a third state, which is different from the first state in that the second fan 161 is in an off state in the third state; at this time, the air having exchanged heat with the indoor heat exchanger 122 is blown into the first space 310 through the first outlet 111 and the third outlet 113. In this state, the first fan 141 may be turned on or off, and the air having exchanged heat with the indoor heat exchanger 122 is blown into the first space 310 mainly through the first outlet 111. At this time, the indoor air conditioner independently adjusts the temperature of the air in the first space 310.

In the embodiment of the present application, the fifth connection port 181 of the air mixing duct 180 is opposite to the second duct 130, so that the driving mechanism 150 drives the reversing duct 140 to rotate 180 ° to achieve the switching between the connection with the air mixing duct 180 and the second duct 130.

In some embodiments, the indoor unit of an air conditioner further includes a first detector for detecting whether a person is in the first space 310, a second detector for detecting whether a person is in the second space 320, and a third detector for detecting the air quality in the first space 310. The first detector and the second detector may be infrared detectors to detect whether a person is in the space; the first detector and the second detector may be other apparatuses capable of detecting whether a person is in the space, such as a camera. The third detector may be a carbon dioxide concentration detector, and when the carbon dioxide concentration in the first space 310 is greater than a preset value, fresh air needs to be introduced into the first space 310; of course, the third detector may be other detecting instruments for monitoring air quality.

When the first detector detects that there is a person in the first space 310 and fresh air needs to be introduced into the first space 310, the first through-flow fan 121, the first fan 141, and the second fan 161 are all configured to be activated, and the reversing air duct 140 rotates to communicate with the mixed air duct 180. At the moment, the indoor unit of the air conditioner is in the first state.

When the second detector detects that a person is in the second space 320 and the first through-flow fan 121 is turned on, the first fan 141 is configured to be turned on, and the reversing air duct 140 rotates to communicate with the second air duct 130. The indoor unit of the air conditioner is in the second state at the moment.

Specifically, when the second detector detects that there is a person in the second space 320 and the first detector detects that there is no person in the first space 310, which is usually the rest time in the evening, the rotation speed of the first fan 141 is increased to the first rotation speed, so as to increase the amount of air input into the second space 320 after heat exchange; at this time, the first air outlet 111 can be closed by setting the switch door, so that the air after heat exchange is discharged to the second space 320. When the second detector detects that a person is present in the second space 320 and the first detector detects that a person is present in the first space 310, the first fan 141 is activated to blow out conditioned air into the first space 310 and the second space 320. At this time, the rotation speed of the first fan 140 is less than the first rotation speed.

When the first detector detects that there is a person in the first space 310 but not in the second space 320, and there is no need to introduce fresh air into the first space 310; a first through-flow fan 121 of the indoor unit of the air conditioner is normally started, and a first fan 141 and a second fan 161 are closed; the reversing air duct 140 rotates to communicate with the air mixing duct 180. The indoor unit of the air conditioner is in a third state at the moment.

The embodiment of the application detects whether people are in the first space 310 and the second space 320 by arranging the first detector and the second detector; by providing a third detector for detecting the air quality in the first space 310, it is determined whether fresh air is introduced into the first space 310; and determines the operation state of the indoor unit of the air conditioner according to whether a person is in the first space 310 and the second space 320 and the air quality in the first space 310, and automatically controls the operation state of the air conditioner.

In some possible implementations, referring to fig. 3, the driving mechanism 150 includes a driving motor 151 and a transmission assembly 152, and the driving motor 151 drives the reversing air duct 140 to rotate relative to the first air duct 120 through the transmission assembly 152. The driving motor 151 may be fixed to an inner wall of the cabinet by a bracket. The driving motor 151 may be a stepping motor, a servo motor, or the like. The drive assembly 152 may be a gear drive assembly, a belt drive assembly, or the like.

In the embodiment of the present application, the transmission assembly 152 includes a first gear 1521 and a second gear 1522, which are engaged with each other, the first gear 1521 is fixed on the output shaft of the driving motor 151, and the second gear 1522 is fixed on the outer side of the vertical connecting portion 144, where the vertical connecting portion 144 is cylindrical. So set up, driving motor 151 both can pass through first gear 1521 and second gear 1522 drive switching-over wind channel 140 and rotate, and gear drive subassembly compact structure does benefit to the volume that reduces indoor set of air conditioner moreover.

To sum up, the air-conditioning indoor unit of the air conditioner in the embodiment of the present application includes a cabinet 110, a first air duct 120, a second air duct 130, a reversing air duct 140, a driving mechanism 150, a fresh air duct 160, and an air mixing air duct 180, wherein the cabinet 110 is installed in a first indoor space 310, and the cabinet 110 is provided with a first air outlet 111, a third air outlet 113, and an air inlet 112; the first air duct 120 is located in the cabinet body 110, the first air duct 120 is respectively communicated with the first air outlet 111 and the first air inlet 112, a first cross flow fan 121 and an indoor heat exchanger 122 which are vertically arranged are arranged in the first air duct 120, and the indoor heat exchanger 122 is located between the first cross flow fan 121 and the air inlet 112, and is used for exchanging heat with air flowing through, so as to reduce or raise the temperature of the air; the first through-flow fan 121 is configured to blow air into the first space 310 through the first outlet port 111, and functions to regulate the temperature of air in the first space 310.

The bottom of the first air duct 120 is provided with a first connection port, the first connection port is communicated with the second connection port 142 of the reversing air duct 140, the reversing air duct 140 is internally provided with a first fan 141, and the first fan 141 is used for transmitting air in the first air duct 120 to the third connection port 143 of the reversing air duct 140.

The second air duct 130 has a second air outlet, the second air outlet is located in a second space 320 in the room, and the second space 320 and the first space are separated by a wall;

the second fan 161 is arranged in the fresh air duct 160, the fresh air inlet of the fresh air duct 160 is arranged outdoors 340, and the fresh air outlet of the fresh air duct 160 is communicated with the fourth connecting port of the air mixing duct 180; the air mixing duct 180 is communicated with the third air outlet 113;

the driving mechanism 150 is configured to drive the reversing air duct 140 to rotate relative to the first air duct 120 so as to communicate the third connecting port 143 with the second air duct 130, the first through-flow fan 121 is configured to blow air into the first space 310 through the first air outlet 111, and the first fan 141 is configured to blow air into the second space 320 through the second air outlet so as to adjust the air temperature in the first space 310 and the second space 320 simultaneously. So, the air conditioning indoor unit of this application embodiment can blow towards two different spaces simultaneously, need not to set up two air conditioners, not only does benefit to reduce cost, still does benefit to and reduces installation occupation space.

The driving mechanism 150 drives the reversing air duct 140 and the first fan 141 inside the reversing air duct 140 to rotate relative to the first air duct 120, so that the third connecting port 143 is communicated with the fifth connecting port 181, the first through-flow fan 121, the first fan 141 and the second fan 161 are all configured to be started, and air after heat exchange with the indoor heat exchanger 122 enters the air mixing air duct 180 through the first air duct 120 and the reversing air duct 140 under the action of the first through-flow fan 121 and the first fan 141; outdoor fresh air enters the air mixing air channel 180 through the fresh air channel 160 under the action of the second fan, and therefore air and fresh air after heat exchange with the indoor heat exchanger 122 are mixed in the air mixing air channel 180 and blown indoors through the third air outlet 113, the temperature difference between the fresh air and the indoor air is reduced, and the user experience degree is improved.

So far, the technical solutions of the present application have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present application is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the present application, and the technical scheme after the changes or substitutions will fall into the protection scope of the present application.

Claims

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

the first air channel is respectively communicated with the first air outlet and the air inlet, a first through-flow fan and an indoor heat exchanger which are vertically arranged are arranged in the first air channel, and the indoor heat exchanger is positioned between the air inlet and the first through-flow fan; the first cross flow fan is configured to blow air into the first space through the first air outlet; the bottom of the first air duct is provided with a first connecting port;

a first end of the air mixing air duct is communicated with the third air outlet, a second end of the air mixing air duct is provided with a fourth connecting port and a fifth connecting port, and the fourth connecting port is communicated with the fresh air outlet;

2. An indoor unit of an air conditioner as claimed in claim 1, wherein the driving mechanism includes a driving motor and a transmission assembly, and the driving motor drives the reversing air duct to rotate relative to the first air duct through the transmission assembly.

3. An indoor unit of an air conditioner according to claim 2, wherein the reversing air duct includes a vertical connecting portion and a horizontal reversing portion, one end of the vertical connecting portion forms the second connection port and communicates with the first connection port, the other end of the vertical connecting portion communicates with the horizontal reversing portion, and the horizontal reversing portion forms the third connection port; the first fan is installed on the horizontal reversing part.

4. An indoor unit of an air conditioner according to claim 3, wherein the transmission assembly includes a first gear and a second gear that are engaged with each other, the first gear being fixed to an output shaft of the driving motor, and the second gear being fixed to an outer side of the vertical connecting portion.

5. An indoor unit of an air conditioner according to claim 3, wherein the first fan includes a first motor and a first impeller, the first impeller is fixed to an output shaft of the first motor, and the first impeller is opposite to the third connection port; the first motor is fixed in the horizontal reversing part, and an output shaft of the first motor is arranged along the horizontal direction.

6. An indoor unit of an air conditioner according to any one of claims 1 to 5, wherein the second fan includes a casing having an air outlet port and an air inlet port formed therein, the casing being configured to form a part of an inner wall of the fresh air duct, and a driving part installed in the casing;

the fresh air duct also comprises a first pipe section and a second pipe section, wherein the first end of the first pipe section forms the fresh air outlet and is communicated with the fourth connecting port, and the second end of the first pipe section is communicated with the air outlet port; the first end of the second pipe section is communicated with the air inlet, and the second end of the second pipe section forms the fresh air inlet.

7. An indoor unit of an air conditioner according to any one of claims 1 to 5, wherein the air mixing duct has at least one curved section.

8. An indoor unit of an air conditioner according to any one of claims 1 to 5, wherein a first seal ring is provided at the third joint;

the second air duct is provided with a second sealing ring; when the third connecting port is communicated with the second air duct, the first sealing ring and the second sealing ring are abutted and sealed;

and a third sealing ring is arranged at the fifth connecting port, and when the third connecting port is communicated with the fifth connecting port, the third sealing ring is abutted and sealed with the first sealing ring.

9. An indoor unit of an air conditioner according to any one of claims 1 to 5, wherein the first outlet is provided with a first outlet grille, the second outlet is provided with a second outlet grille, and the third outlet is provided with a third outlet grille.

10. An air conditioner comprising an outdoor unit and the indoor unit of any one of claims 1 to 9, wherein the outdoor unit is connected to the indoor heat exchanger of the indoor unit via a refrigerant connection pipe.