Air conditioner indoor unit and air conditioner

Abstract

The present application belongs to the field of household electrical appliance technology, and specifically relates to an air conditioner indoor unit and an air conditioner. The present application aims to solve the problem that the existing air conditioner can only adjust the air in a single space and the temperature difference between the introduced fresh air and the indoor air is large. The air conditioner indoor unit of the air conditioner of the present application includes a cabinet, a first air duct, a second air duct, a reversing air duct, a driving mechanism, a fresh air duct and a mixed air duct. The driving mechanism is configured to drive the reversing air duct to rotate relative to the first air duct so that the reversing air duct is connected with the second air duct, so that the air conditioner indoor unit can adjust the air temperature in the first space and the second space at the same time; or, so that the reversing air duct is connected with the mixed air duct, the outdoor fresh air and the indoor air after heat exchange are mixed in the mixed air duct, and then blown into the first space, so as to reduce the temperature difference between the fresh air and the indoor air temperature, which is conducive to improving the user experience.

Description

Technical Field

[0001] The present application belongs to the technical field of household appliances, and specifically relates to an air-conditioning indoor unit and an air conditioner. Background Art

[0002] An air conditioner is a unit used to process air temperature changes in a space area. Its function is to adjust parameters such as the temperature, humidity, cleanliness and air flow rate of the air in the room (or closed space or area), making it a must-have household appliance in users' homes.

[0003] Existing air conditioners can usually only regulate the air in a single space. For example, a cabinet air conditioner is usually installed in the living room to regulate the air in the living room. Since the living room is usually large, the cabinet air conditioner in the living room has a weak cooling or heating effect on the bedroom. In the related art, a wall-mounted air conditioner is usually installed in the bedroom. Such a setting not only increases the cost, but also takes up a large space for installation. Moreover, it is necessary to set up additional fresh air equipment to introduce fresh air into the room, but the introduced fresh air usually has a large temperature difference with the indoor air, which affects the cooling and heating effects of the air conditioner. Summary of the invention

[0004] In order to solve the above problems in the prior art, that is, to solve the problem that the existing air conditioner can only regulate the air in a single space and there is a large temperature difference between the introduced fresh air and the indoor air, the present application provides an air conditioner indoor unit and an air conditioner.

[0005] The air conditioner indoor unit comprises:

[0006] A cabinet is installed in the first space of the room, and the cabinet is provided with a first air outlet, a third air outlet and an air inlet;

[0007] a first air duct, connected to the first air outlet and the air inlet, respectively; a vertically arranged first cross-flow fan and an indoor heat exchanger are provided in the first air duct; the indoor heat exchanger is located between the air inlet and the first cross-flow fan; the first cross-flow fan is configured to blow air toward the first space through the first air outlet; a first connecting port is provided at the bottom of the first air duct;

[0008] The reversing air duct has a second connection port and a third connection port, wherein the second connection port is connected to the first connection port; a first fan is arranged in the reversing air duct;

[0009] a second air duct having a second air outlet, wherein the second air outlet is located in a second space indoors, and the second space and the first space are separated by a wall;

[0010] A fresh air duct having a fresh air inlet and a fresh air outlet, wherein a second fan is arranged in the fresh air duct;

[0011] an air mixing duct, wherein a first end of the air mixing duct is connected to the third air outlet, a second end of the air mixing duct is provided with a fourth connection port and a fifth connection port, and the fourth connection port is connected to the fresh air outlet;

[0012] The driving mechanism is configured to drive the reversing air duct to rotate relative to the first air duct so that the third connecting port is connected to the second air duct, and the first fan is configured to blow air toward the second space through the second air outlet; or, so that the third connecting port is connected to the fifth connecting port, the air in the reversing air duct and the fresh air duct is mixed in the mixed air duct and then blown toward the first space through the third air outlet.

[0013] In an optional technical solution of the above-mentioned 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.

[0014] In the optional technical solution of the above-mentioned air-conditioning indoor unit, the reversing air duct includes a vertical connecting part and a horizontal reversing part, one end of the vertical connecting part forms the second connecting port connected to the first connecting port, the other end of the vertical connecting part is connected to the horizontal reversing part, and the horizontal reversing part forms the third connecting port; the first fan is installed on the horizontal reversing part.

[0015] In an optional technical solution of the above-mentioned air conditioner indoor unit, the transmission assembly includes a first gear and a second gear that are meshed with each other, the first gear is fixed to the output shaft of the drive motor, and the second gear is fixed to the outer side of the vertical connection part.

[0016] In the optional technical solution of the above-mentioned air-conditioning indoor unit, the first fan includes a first motor and a first impeller, the first impeller is fixed on the 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 the output shaft of the first motor is arranged in the horizontal direction.

[0017] In the optional technical solution of the above-mentioned air-conditioning indoor unit, the second fan includes a casing and a driving component installed in the casing, an air outlet port and an air inlet port are formed on the casing, and the casing is constructed to form a partial inner wall of the fresh air duct; the fresh air duct also includes a first pipe section and a second pipe section, the first end of the first pipe section forms the fresh air outlet and is connected to the fourth connecting port, and the second end of the first pipe section is connected to the air outlet port; the first end of the second pipe section is connected to the air inlet port, and the second end of the second pipe section forms the fresh air inlet.

[0018] In an optional technical solution of the above-mentioned air-conditioning indoor unit, the air mixing duct has at least one curved section.

[0019] In the optional technical solution of the above-mentioned air-conditioning indoor unit, a first sealing ring is provided at the third connection port; a second sealing ring is provided at the second air duct; when the third connection port is connected with the second air duct, the first sealing ring and the second sealing ring abut against each other for sealing; a third sealing ring is provided at the fifth connection port, and when the third connection port is connected with the fifth connection port, the third sealing ring and the first sealing ring abut against each other for sealing.

[0020] In an optional technical solution of the above-mentioned air conditioner indoor unit, the first air outlet is installed with a first air outlet grille, the second air outlet is installed with a second air outlet grille, and the third air outlet is installed with a third air outlet grille.

[0021] The air conditioner comprises: an air conditioner outdoor unit and the air conditioner indoor unit mentioned above, and the air conditioner outdoor unit is connected with the indoor heat exchanger of the air conditioner indoor unit through a refrigerant connecting pipe.

[0022] Those skilled in the art can understand that the air-conditioning indoor unit of the air conditioner of the present application comprises a cabinet, a first air duct, a second air duct, a reversing air duct, a driving mechanism, a fresh air duct and a mixed air duct, wherein the cabinet is installed in a first space in the room, and a first air outlet, a third air outlet and an air inlet are provided on the cabinet; the first air duct is located in the cabinet, and the first air duct is connected with the first air outlet and the air inlet respectively, and a vertically arranged first cross-flow fan and an indoor heat exchanger are provided in the first air duct, and the indoor heat exchanger is located between the first cross-flow fan and the air inlet, and is used for exchanging heat with the air flowing through, so as to reduce or increase the air temperature; the first cross-flow fan is configured to blow air toward the first space through the first air outlet, so as to regulate the air temperature in the first space.

[0023] A first connection port is provided at the bottom of the first air duct, and the first connection port is connected to the second connection port of the reversing air duct. A first fan is provided in the reversing air duct, and the first fan is used to transmit the air in the first air duct to the third connection port of the reversing air duct. The second air duct has a second air outlet, and the second air outlet is located in the second space indoors, and the second space and the first space are separated by a wall. A second fan is provided in the fresh air duct, and the fresh air inlet of the fresh air duct is provided outdoors, and the fresh air outlet of the fresh air duct is connected to the fourth connection port of the mixed air duct; the mixed air duct is connected to the third air outlet.

[0024] The driving mechanism is configured to drive the reversing air duct to rotate relative to the first air duct so that the third connection port is connected to the second air duct, the first cross-flow fan is configured to blow air toward the first space through the first air outlet, and the first fan is configured to blow air toward the second space through the second air outlet to simultaneously adjust the air temperature in the first space and the second space. In this way, the indoor unit of the air conditioner of the embodiment of the present application can blow air toward two different spaces at the same time without setting up two air conditioners, which is not only conducive to reducing costs, but also conducive to reducing installation space.

[0025] The driving mechanism drives the reversing air duct and the first fan inside it to rotate relative to the first air duct, so that the third connecting port is connected to the fifth connecting port, and the first cross-flow fan, the first fan and the second fan are all configured to start, and the air after heat exchange with the indoor heat exchanger enters the mixed air duct through the first air duct and the reversing air duct under the action of the first cross-flow fan and the first fan; the outdoor fresh air enters the mixed air duct through the fresh air duct under the action of the second fan, thereby, the air after heat exchange with the indoor heat exchanger and the fresh air are mixed in the mixed air duct and blown into the room through the third air outlet, thereby reducing the temperature difference between the fresh air and the indoor air temperature, which is beneficial to improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The following describes the optional implementation of the air conditioner indoor unit and the air conditioner according to the embodiment of the present application with reference to the accompanying drawings.

[0027] Figure 1 is a schematic diagram of an air conditioner provided in an embodiment of the present application;

[0028] Figure 2 is a structural schematic diagram of an air-conditioning indoor unit provided in an embodiment of the present application;

[0029] Figure 3 It is a schematic diagram of the bottom air duct structure of the air conditioner indoor unit provided in an embodiment of the present application;

[0030] Figure 4 It is a schematic diagram of the reversing air duct and the first fan structure of the air conditioner indoor unit provided in an embodiment of the present application;

[0031] Figure 5 is a schematic diagram of gas flow direction in a first state of an indoor unit of an air conditioner provided in an embodiment of the present application;

[0032] Figure 6 is a schematic diagram of gas flow direction in the second state of the indoor unit of the air conditioner provided in an embodiment of the present application;

[0033] Figure 7 It is a schematic diagram of an air-conditioning indoor unit provided in another embodiment of the present application.

[0034] In the attached drawings: 100: indoor unit of air conditioner; 110: cabinet; 111: first air outlet; 112: air inlet; 113: third air outlet; 120: first air duct; 121: first cross-flow fan; 122: indoor heat exchanger; 130: second air duct; 140: reversing air duct; 141: first fan; 1411: first motor; 1412: first impeller; 142: second connection port; 143: third connection port; 144: vertical connection portion; 145: horizontal reversing portion; 1451: mounting plate; 146: vertical connection portion; 147: horizontal reversing portion; 148: mounting plate; 149: vertical connection portion; 150: horizontal reversing portion; 151: mounting plate; 152: vertical connection portion; 153: horizontal reversing portion; 154: vertical connection portion; 155: horizontal reversing portion; 156: horizontal reversing portion; 157: vertical connection portion; 158: horizontal reversing portion; 159: vertical connection portion; 160: horizontal reversing portion; 161: horizontal reversing portion; 162: horizontal reversing portion; 163: vertical connection portion; 164: vertical connection portion; 165: horizontal reversing portion; 166: horizontal reversing portion; 167: vertical connection portion; 168: horizontal reversing portion; 169: vertical connection portion; 170: horizontal reversing portion; 171: horizontal reversing portion; 172: horizontal reversing portion; 173: vertical connection portion; 174: vertical connection portion; 175: horizontal reversing portion; 176: horizontal reversing portion; 177: horizontal reversing portion; 178: horizontal reversing portion; 52: air duct wall; 150: driving mechanism; 151: driving motor; 152: transmission assembly; 1521: first gear; 1522: second gear; 160: fresh air duct; 161: second fan; 1611: housing; 162: first pipe section; 163: second pipe section; 170: housing; 171: second cross-flow fan; 180: mixed air duct; 181: fifth connection port; 200: air conditioner outdoor unit; 310: first space; 320: second space; 330: wall; 340: outdoor. DETAILED DESCRIPTION

[0035] First, those skilled in the art should understand that these implementations are only used to explain the technical principles of the embodiments of the present application, and are not intended to limit the protection scope of the embodiments of the present application. Those skilled in the art can make adjustments to them as needed to adapt to specific application scenarios.

[0036] Secondly, it should be noted that in the description of the embodiments of the present application, terms such as "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. This is only for the convenience of description and does not indicate or imply that the device or component must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the embodiments of the present application.

[0037] In addition, it should be noted that in the description of the embodiments of the present application, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0038] Existing air conditioners can usually only regulate the air in a single space. For example, a cabinet air conditioner is usually installed in the living room to regulate the air in the living room. Since the living room is usually large, the cabinet air conditioner in the living room has a weak cooling or heating effect on the bedroom. In the related art, a wall-mounted air conditioner is usually installed in the bedroom. Such a setting not only increases the cost, but also takes up a large space for installation. Moreover, it is necessary to set up additional fresh air equipment to introduce fresh air into the room, but the introduced fresh air usually has a large temperature difference with the indoor air, which affects the cooling and heating effects of the air conditioner.

[0039] In view of this, an embodiment of the present application provides an air-conditioning indoor unit, which is provided with a first air duct, a mixed air duct, a second air duct, a reversing air duct and a fresh air duct, wherein a cross-flow fan is installed in the first air duct; the mixed air duct is connected to a first air outlet arranged on the front side of a cabinet located in the first space; the second air duct is provided with a second air outlet, and the second air outlet is located in the second space; a second fan is installed in the fresh air duct, one end of the fresh air duct is connected to the outside, and the other end is connected to the mixed air duct; the reversing air duct is provided with a first fan; A fan is provided, and the top end of the reversing air duct is connected with the first air duct, and the reversing air duct rotates relative to the first air duct under the drive of the driving mechanism. When the reversing air duct is connected with the second air duct, the air conditioner indoor unit can introduce cold air or warm air into the second space through the second air duct, thereby regulating the temperature in the second space; when the reversing air duct is connected with the mixing air duct, the air conditioned by the air conditioner indoor unit is mixed with the outdoor fresh air and blown into the first space, thereby reducing the temperature difference between the outdoor fresh air and the indoor air temperature, thereby improving the user experience.

[0040] The following describes the optional technical solutions for the air-conditioning indoor unit and the air conditioner in the embodiment of the present application in conjunction with the accompanying drawings.

[0041] Figure 1 It is a schematic diagram of an air conditioner provided in an embodiment of the present application.

[0042] Combination Figure 1 The air conditioner of the embodiment of the present application includes: an air conditioner outdoor unit 200 and an air conditioner indoor unit 100, and the air conditioner outdoor unit 200 is connected to the indoor heat exchanger of the air conditioner indoor unit 100 through a refrigerant connecting pipe.

[0043] It can be understood that the compressor, the four-way reversing valve, the outdoor heat exchanger in the air-conditioning outdoor unit 200, the throttling device and the indoor heat exchanger in the air-conditioning indoor unit 100 are connected to form an air-conditioning refrigerant circulation loop. The compressor, the four-way reversing valve and the throttling device can be arranged in the air-conditioning indoor unit 100 or in the air-conditioning outdoor unit 200.

[0044] The air conditioner outdoor unit 200 is installed outdoors 340, and the air conditioner indoor unit 100 is installed in the first indoor space 310. The air conditioner indoor unit 100 of the embodiment of the present application can not only adjust the temperature in the first space 310, but also adjust the temperature in the second indoor space 320. The first space 310 and the second space 320 are separated by a wall 330. The "wall" mentioned here is understood in a broad sense, which can be a building wall such as brick and stone, or a partition such as a wooden board or a plastic board.

[0045] The air conditioner of the embodiment of the present application can adjust the temperature of two separated spaces at the same time. For example, the first space 310 can be a living room and the second space 320 can be a bedroom; the first space 310 and the second space 320 can also be two adjacent bedrooms separated by a wall, etc.

[0046] The specific structure and function of the air conditioner indoor unit 100 according to the embodiment of the present application will be described in detail below with reference to the accompanying drawings.

[0047] Figure 2 is a structural schematic diagram of an air-conditioning indoor unit provided in an embodiment of the present application; Figure 3 It is a schematic diagram of the bottom air duct structure of the air conditioner indoor unit provided in an embodiment of the present application; Figure 4 It is a schematic diagram of the reversing air duct and the first fan structure of the air conditioner indoor unit provided in an embodiment of the present application.

[0048] Combination Figure 2 The air conditioner indoor unit of 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 fresh air duct 160, a mixed air duct 180 and a driving mechanism 150.

[0049] The cabinet 110 is installed in the first space 310 of the room; the cabinet 110 is provided with a third air outlet 113 and an air inlet 112, the third air outlet 113 is used to blow air toward the first space 310, and is usually provided on the front panel of the cabinet 110; the third air outlet 113 can be a long strip extending vertically, which is conducive to increasing the air outlet area. A third air outlet grille is installed in the third air outlet 113, and the third air outlet grille is connected to the driving component, and the third air outlet grille rotates under the action of the driving component, thereby adjusting the air outlet direction of the third air outlet 113 to prevent the air from the third air outlet 113 from blowing directly onto people.

[0050] The air inlet 112 is used for air intake and is usually arranged on the back of the cabinet 110 facing the wall 330. As shown in the drawings, the cabinet 110 is generally in a rectangular parallelepiped shape, but this is not a limitation on the shape of the cabinet 110. For example, the cabinet 110 can also be cylindrical.

[0051] The cabinet 110 of the embodiment of the present application is also provided with a first air outlet 111, and the first air outlet 111 can be a long strip extending vertically, which is conducive to increasing the air outlet 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 position of the third air outlet 113 and the first air outlet 111. The first air outlet 111 is connected to the first air duct 120, and a first cross-flow fan 121 is installed in the first air duct 120. The first cross-flow fan 121 is configured to blow air toward the first space 310 through the first air outlet 111. The first air outlet 111 is equipped with a first air outlet grille, which is transmission-connected to the driving component. The first air outlet grille rotates under the action of the driving component, and the air outlet direction of the first air outlet 111 can be adjusted to prevent the air from the first air outlet 111 from blowing directly onto people.

[0052] The first air duct 120 is arranged in the cabinet 110, and the first air duct 120 is connected to the air inlet 112, and the first air duct 120 is connected to the first air outlet 111; in this way, when the temperature in the first space 310 needs to be adjusted and there is no need to introduce fresh air into the first space 310, the air entering the first air duct 120 through the air inlet 112 can be discharged through the first air outlet 111 under the action of the first cross-flow fan 121.

[0053] A vertically arranged first cross-flow fan 121 is provided in the first air duct 120, and the first cross-flow fan 121 is used to transport the air of 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 also provided between the air inlet 112 and the first cross-flow fan 121, and the indoor heat exchanger 122 exchanges heat with the air flowing through, which plays a role in lowering or raising the air temperature. When the air conditioner is cooling, the indoor heat exchanger 122 acts as an evaporator; when the air conditioner is heating, the indoor heat exchanger 122 acts as a condenser. Optionally, the indoor heat exchanger 122 can be designed as a microchannel heat exchanger, which is conducive to improving the heat exchange efficiency and reducing the volume of the heat exchanger. Of course, the use of a microchannel heat exchanger is only an example of the embodiment of the present application. In actual application, other types of heat exchangers can also be used, and no more specific restrictions are made here.

[0054] The bottom end of the first air duct 120 is connected to the reversing air duct 140, see Figure 2The first air duct 120 is provided with a first connection port at the bottom thereof, and 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 can rotate relative to the first air duct 120, and the reversing air duct 140 is communicated with the bottom end of the first air duct 120. For example, a sealing ring is provided between the second connection port 142 and the first connection port, and the second connection port 142 can rotate relative to the first connection port.

[0055] Continue to refer to Figure 2 The reversing air duct 140 includes a vertical connection portion 144 and a horizontal reversing portion 145. One end of the vertical connection portion 144 forms a second connection port 142 that is connected to the first connection port, and the other end of the vertical connection portion 144 is connected to the horizontal reversing portion 145. The horizontal reversing portion 145 forms a third connection port 143. In this embodiment, the second connection port 142 is arranged at the top of the vertical connection portion 144, and the bottom end of the vertical connection portion 144 is connected to the horizontal reversing portion 145; the opening direction of the third connection port 143 is perpendicular to the opening direction of the second connection port 142, so as to facilitate communication with the second air duct 130 or the air mixing air duct 180 arranged in the horizontal direction.

[0056] Combination Figure 3 A first fan 141 is disposed in the reversing air duct 140 . Specifically, the first fan 141 is installed in the horizontal reversing portion 145 . This arrangement facilitates driving the air in the horizontal reversing portion 145 to flow toward the second air duct 130 or the air mixing duct 180 .

[0057] like Figure 3 As shown, the horizontal reversing portion 145 includes a duct wall 1452 extending horizontally and a mounting plate 1451 disposed at the end of the duct wall 1452, wherein the duct wall 1452 defines a cylinder extending horizontally and having two ends open, the mounting plate 1451 is mounted at one end of the cylinder, and the other end of the cylinder forms a third connection port 143; the duct wall 1452 is connected to the vertical connection portion 144. The mounting plate 1451 is used to mount the first fan 141.

[0058] The first fan 141 may be an axial flow fan. Specifically, the first fan 141 includes a first motor 1411 and a first impeller 1412. The first motor 1411 is fixed on the mounting plate 1451. The output shaft of the first motor 1411 extends in the horizontal direction. The output shaft of the first motor 1411 is fixedly connected to the first impeller 1412. The first impeller 1412 is directly opposite to the third connection port 143. In this way, 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. In this case, the extension direction of the reversing air duct 140 is adapted to the air inlet and outlet directions of the centrifugal fan.

[0059] Figure 5 is a schematic diagram of gas flow direction in a first state of an indoor unit of an air conditioner provided in an embodiment of the present application; Figure 6 310 and 320. FIG. 311 is a schematic diagram of the gas flow direction of the second state of the air conditioner indoor unit provided in the embodiment of the present application. In the first state, the air conditioner indoor unit adjusts the air temperature in the first space 310 and introduces fresh air into the first space 310; in the second state, the air conditioner indoor unit simultaneously adjusts the air temperature in the first space 310 and the second space 320. Figure 5 and Figure 6 In the figure, the left side of the vertical wall 330 is installed with the air conditioner indoor unit, which is the first space 310, and the right side is the second space 320; the upper side of the horizontal wall 330 is indoors, and the lower side is outdoors 340, where the air conditioner outdoor unit is installed.

[0060] Combination Figure 5 and Figure 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 second space 320 of the room. In this way, under the action of the first cross-flow fan 121 and the first fan 141, the air after heat exchange 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, thereby regulating the air temperature in the second space 320.

[0061] In order to ensure the sealing performance when the second air duct 130 is connected to the third connection port 143 of the reversing air duct 140, a second sealing ring is provided at the second air duct 130, and a first sealing ring is provided at the third connection port 143; when the second air duct 130 is connected to the third connection port 143, the second sealing ring abuts against the first sealing ring for sealing, which is conducive to ensuring the sealing performance of the connection between the second air duct 130 and the reversing air duct 140, and preventing gas leakage from affecting the cooling or heating effect. Among them, the first sealing ring and the second sealing ring can be sealing members such as silicone rings and rubber rings.

[0062] Figure 7 Schematic diagram of an air conditioner indoor unit provided by another embodiment of the present application. Figure 7 In some embodiments, the second air duct 130 further includes a body 170, which is installed in the second indoor space 320; a second cross-flow fan 171 is installed in the body 170, and the second air outlet is arranged on the body 170. In the embodiment of the present application, by adding the second cross-flow fan 171, the gas flow in the second air duct 130 is increased in power, which is conducive to increasing 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 long strip opening extending in the vertical direction of the body 170, which is conducive to increasing the air outlet area.

[0063] Furthermore, a second air outlet grille is installed in the second air outlet; the air conditioner indoor unit of this embodiment further includes a driving component, which is installed in the body 170 and is in transmission connection with the second air outlet grille, and is configured to drive the second air outlet grille to swing to adjust the air outlet direction. The driving component may include a motor and a rack, etc.

[0064] The embodiment of the present application adjusts the air outlet direction of the second air outlet by setting an air outlet grille at the second air outlet and setting a driving mechanism to drive the air outlet grille to swing, so as to facilitate the user to adjust the air outlet direction and prevent the air from the second air outlet from blowing directly onto the person.

[0065] The air-conditioning indoor unit of the embodiment of the present application utilizes the first cross-flow fan 121 in the first air duct 120 to adjust the air temperature in the first space 310 through the first air outlet 111; by setting a reversing air duct 140 at the bottom of the first air duct 120, and setting a first fan 141 in the reversing air duct 140, when the reversing air duct 140 is connected to the second air duct 130, the first fan 141 is utilized to blow air toward the second space 320 through the second air outlet; in this way, the air-conditioning indoor unit of the embodiment of the present application can blow air toward two different spaces at the same time without setting up two air conditioners, which is not only beneficial to reducing costs, but also beneficial to reducing the installation space occupied.

[0066] In addition, the air conditioner indoor unit of the embodiment of the present application also has a fresh air function. Figure 2 and Figure 3 The air-conditioning indoor unit of the embodiment of the present application is further provided with a fresh air duct 160 in the cabinet 110. The fresh air duct 160 has a fresh air inlet and a fresh air outlet. The fresh air inlet is arranged outdoors 340, and the fresh air outlet is connected to the first space 310 in the room through the mixed air duct 180; a second fan 161 is arranged in the fresh air duct 160, and the second fan 161 is configured to blow fresh air into the first space 310 through the fresh air outlet.

[0067] The second fan 161 includes a housing 1611 and a driving component installed in the housing 1611. An air outlet port and an air inlet port are formed on the housing 1611. The air inlet port is connected to the outside 340, and the air outlet port is connected to the mixed air duct 180. The housing 1611 is configured to form a part of the inner wall of the fresh air duct 160. The driving component is a power component for driving the air flow, which may include a second motor and a second impeller connected to the second motor in a transmission manner. The second impeller is driven to rotate by the second motor to form an air flow. The second motor is fixed in the housing 1611. For example, the motor is fixed in the housing 1611 by fasteners such as screws or bolts, and the connection method is stable and reliable.

[0068] The fresh air duct 160 also includes a first pipe section 162 and a second pipe section 163. The first end of the first pipe section 162 forms a fresh air outlet and communicates with the mixed air duct 180, and the second end of the first pipe section 162 is communicated with the air outlet port; the first end of the second pipe section 163 is communicated with the air inlet port, and the second end of the second pipe section 163 forms a fresh air inlet. Among them, the first pipe section 162 can be arranged in a horizontal direction, so that it is convenient to communicate with the mixed air duct 180; at least part of the second pipe section 163 is arranged vertically, so that it is convenient to communicate with the air inlet port of the second fan 161. Of course, this is not a limitation on the extension direction of the first pipe section 162 and the second pipe section 163. Those skilled in the art can also set the direction of the fresh air duct 160 according to the structural arrangement inside the air conditioner indoor unit. Thus, the first pipe section 162, the casing 1611 of the second fan 161 and the second pipe section 163 form the fresh air duct 160.

[0069] In order to avoid a large temperature difference between the fresh air blown into the first space 310 and the indoor temperature, the air conditioner indoor unit of the embodiment of the present application is also provided with a mixing air duct 180 for mixing the air heat exchanged by the indoor heat exchanger 122 and the outdoor fresh air to reduce the temperature difference between the fresh air and the indoor air.

[0070] Combine again Figure 2 and Figure 3 The first end of the mixed air duct 180 is connected to the third air outlet 113, and the second end of the mixed air duct 180 is provided with a fourth connection port and a fifth connection port 181. The fourth connection port is connected to the fresh air outlet of the fresh air duct 160 to introduce fresh air; the fifth connection port 181 is used to communicate with the reversing air duct 140 to introduce air that has been heat-exchanged by the indoor heat exchanger 122, so that the fresh air and the heat-exchanged air are mixed in the mixed air duct 180 and then blown into the room through the third air outlet 113 to reduce the temperature difference between the fresh air and the indoor air and improve the user experience.

[0071] In order to ensure the sealing performance when the fifth connection port 181 of the air mixing duct 180 is connected to the third connection port 143 of the reversing duct 140, a third sealing ring is provided at the fifth connection port 181. When the fifth connection port 181 is connected to the third connection port 143, the third sealing ring abuts against the first sealing ring at the third connection port 143 to seal, which is conducive to ensuring the sealing performance of the connection between the air mixing duct 180 and the reversing duct 140, and preventing gas leakage from affecting the cooling or heating effect. The third sealing ring can be a sealing member such as a silicone ring or a rubber ring.

[0072] 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 to improve the flow path of fresh air and indoor air, thereby facilitating improving the mixing effect.

[0073] The driving mechanism 150 of the embodiment of the present application drives the reversing air duct 140 and the first fan 141 therein to rotate relative to the first air duct 120, so that the third connecting port 143 is connected to the fifth connecting port 181, and the first cross-flow fan 121, the first fan 141 and the second fan 161 are all configured to start, and the air after heat exchange with the indoor heat exchanger 122 enters the mixed air duct 180 through the first air duct 120 and the reversing air duct 140 under the action of the first cross-flow fan 121 and the first fan 141; the outdoor fresh air enters the mixed air duct 180 through the fresh air duct 160 under the action of the second fan, and the specific reference is made to FIG. Figure 5 , Figure 5 In the figure, the dashed line represents the flow direction of the indoor air, and the dotted line represents the flow direction of the outdoor fresh air. Therefore, the air after heat exchange with the indoor heat exchanger 122 and the fresh air are mixed in the air mixing duct 180 and blown into the room through the third air outlet 113, reducing the temperature difference between the fresh air and the indoor air temperature, which is conducive to improving the user experience. At this time, the air conditioner indoor unit is in the first state.

[0074] The driving mechanism 150 of the embodiment of the present application is used to drive the reversing air duct 140 and the first fan 141 therein to rotate relative to the first air duct 120, so that the third connecting port 143 of the reversing air duct 140 is connected to the second air duct 130, and the specific reference is made to Figure 6 The first cross-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 simultaneously adjust the air temperature in the first space 310 and the second space 320. At this time, the air conditioner indoor unit is in the second state.

[0075] Of course, the air conditioner indoor unit can also be in a third state. The difference between the third state and the first state is that in the third state, the second fan 161 is in a closed state; at this time, the air after heat exchange with the indoor heat exchanger 122 is blown into the first space 310 through the first air outlet 111 and the third air outlet 113. In this state, the first fan 141 can be turned on or off, and the air after heat exchange with the indoor heat exchanger 122 is mainly blown into the first space 310 through the first air outlet 111. At this time, the air conditioner indoor unit adjusts the air temperature in the first space 310 alone.

[0076] In the embodiment of the present application, the fifth connection port 181 of the air mixing duct 180 is opposite to the second air duct 130 , so that the driving mechanism 150 drives the reversing duct 140 to rotate 180° to achieve switching between the air mixing duct 180 and the second air duct 130 .

[0077] In some embodiments, the air conditioner indoor unit further includes a first detector, a second detector and a third detector, wherein the first detector is used to detect whether there is someone in the first space 310, the second detector is used to detect whether there is someone in the second space 320, and the third detector is used to detect the air quality in the first space 310. The first detector and the second detector may be infrared detectors to detect whether there is someone in the space; the first detector and the second detector may also be other instruments capable of detecting whether there is someone in the space, such as cameras, etc. 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 also be other detection instruments for monitoring air quality.

[0078] When the first detector detects that there is someone in the first space 310 and fresh air needs to be introduced into the first space 310, the first cross-flow fan 121, the first fan 141 and the second fan 161 are all configured to start, and the reversing air duct 140 rotates to communicate with the air mixing duct 180. At this time, the air conditioner indoor unit is in the first state.

[0079] When the second detector detects that there is someone in the second space 320 and the first cross-flow fan 121 is turned on, the first fan 141 is configured to start, and the reversing air duct 140 rotates to communicate with the second air duct 130. At this time, the air conditioner indoor unit is in the second state.

[0080] Specifically, when the second detector detects that there is someone in the second space 320, and the first detector detects that there is no one in the first space 310, which is usually the rest time at night, the rotation speed of the first fan 141 is increased to the first rotation speed, thereby increasing the amount of air after heat exchange input into the second space 320; at this time, the first air outlet 111 can be closed by setting a switch door, so that the air after heat exchange can be discharged to the second space 320. When the second detector detects that there is someone in the second space 320, and the first detector detects that there is someone in the first space 310, the first fan 141 is started, and the conditioned air is blown into the first space 310 and the second space 320 at the same time. At this time, the rotation speed of the first fan 141 is less than the first rotation speed.

[0081] When the first detector detects that there is someone in the first space 310, but no one in the second space 320, and there is no need to introduce fresh air into the first space 310, the first cross-flow fan 121 of the air conditioner indoor unit is normally started, the first fan 141 and the second fan 161 are turned off, and the reversing air duct 140 rotates to communicate with the air mixing duct 180. At this time, the air conditioner indoor unit is in the third state.

[0082] In the embodiment of the present application, a first detector and a second detector are provided to detect whether there are people in the first space 310 and the second space 320; a third detector is provided to detect the air quality in the first space 310 to determine whether to introduce fresh air into the first space 310; and according to whether there are people in the first space 310 and the second space 320 and the air quality in the first space 310, the operating status of the air conditioner indoor unit is determined, and the operating status of the air conditioner is automatically controlled.

[0083] In some of the possible implementations, combining Figure 3 The driving mechanism 150 includes a driving motor 151 and a transmission assembly 152. 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 can be fixed to the inner wall of the cabinet through a bracket. The driving motor 151 can be a stepping motor, a servo motor, etc. The transmission assembly 152 can be a gear transmission assembly, a belt transmission assembly, etc.

[0084] In the embodiment of the present application, the transmission assembly 152 includes a first gear 1521 and a second gear 1522 that are meshed with each other, the first gear 1521 is fixed to the output shaft of the driving motor 151, and the second gear 1522 is fixed to the outer side of the vertical connection part 144, and the vertical connection part 144 is cylindrical. In this way, the driving motor 151 can drive the reversing air duct 140 to rotate through the first gear 1521 and the second gear 1522, and the gear transmission assembly has a compact structure, which is conducive to reducing the volume of the air conditioner indoor unit.

[0085] In summary, the indoor unit of the air conditioner of 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 a mixed 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 110, and the first air duct 120 is respectively connected to the first air duct 120 and the second air duct 130. An air outlet 111 and an air inlet 112 are connected, and a vertically arranged first cross-flow fan 121 and an indoor heat exchanger 122 are provided in the first air duct 120. 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 the air flowing through, thereby reducing or increasing the air temperature; the first cross-flow fan 121 is configured to blow air toward the first space 310 through the first air outlet 111, thereby regulating the air temperature in the first space 310.

[0086] A first connection port is provided at the bottom of the first air duct 120 , and the first connection port is connected to the second connection port 142 of the reversing air duct 140 . A first fan 141 is provided in the reversing air duct 140 , and the first fan 141 is used to transmit the air in the first air duct 120 to the third connection port 143 of the reversing air duct 140 .

[0087] The second air duct 130 has a second air outlet, and the second air outlet is located in the second space 320 in the room, and the second space 320 and the first space are separated by a wall;

[0088] A second fan 161 is disposed in the fresh air duct 160, a fresh air inlet of the fresh air duct 160 is disposed outdoors 340, and a fresh air outlet of the fresh air duct 160 is connected to a fourth connection port of the mixed air duct 180; the mixed air duct 180 is connected to the third air outlet 113;

[0089] The driving mechanism 150 is configured to drive the reversing air duct 140 to rotate relative to the first air duct 120 so that the third connection port 143 is connected to the second air duct 130, the first cross-flow fan 121 is configured to blow air toward the first space 310 through the first air outlet 111, and the first fan 141 is configured to blow air toward the second space 320 through the second air outlet to simultaneously adjust the air temperature in the first space 310 and the second space 320. In this way, the indoor unit of the air conditioner of the embodiment of the present application can blow air toward two different spaces at the same time without setting up two air conditioners, which is not only conducive to reducing costs, but also conducive to reducing installation space.

[0090] The driving mechanism 150 drives the reversing air duct 140 and the first fan 141 inside it to rotate relative to the first air duct 120, so that the third connecting port 143 is connected to the fifth connecting port 181, and the first cross-flow fan 121, the first fan 141 and the second fan 161 are all configured to start, and the air after heat exchange with the indoor heat exchanger 122 enters the mixed air duct 180 through the first air duct 120 and the reversing air duct 140 under the action of the first cross-flow fan 121 and the first fan 141; the outdoor fresh air enters the mixed air duct 180 through the fresh air duct 160 under the action of the second fan, thereby, the air after heat exchange with the indoor heat exchanger 122 and the fresh air are mixed in the mixed 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 temperature, which is beneficial to improving the user experience.

[0091] So far, the technical solutions of the present application have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present application is obviously not limited to these specific embodiments. Without departing from the principles of the present application, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present application.

Claims

1. An air conditioner indoor unit, characterized in that: include: A cabinet is installed in the first space of the room, and the cabinet is provided with a first air outlet, a third air outlet and an air inlet; a first air duct, connected to the first air outlet and the air inlet, respectively; a vertically arranged first cross-flow fan and an indoor heat exchanger are provided in the first air duct; the indoor heat exchanger is located between the air inlet and the first cross-flow fan; the first cross-flow fan is configured to blow air toward the first space through the first air outlet; a first connecting port is provided at the bottom of the first air duct; The reversing air duct has a second connection port and a third connection port, wherein the second connection port is connected to the first connection port; a first fan is arranged in the reversing air duct; a second air duct having a second air outlet, wherein the second air outlet is located in a second space indoors, and the second space and the first space are separated by a wall; A fresh air duct has a fresh air inlet and a fresh air outlet, and a second fan is arranged in the fresh air duct; an air mixing duct, wherein a first end of the air mixing duct is connected to the third air outlet, a second end of the air mixing duct is provided with a fourth connection port and a fifth connection port, and the fourth connection port is connected to the fresh air outlet; The driving mechanism is configured to drive the reversing air duct to rotate relative to the first air duct, so that the third connecting port is connected with the second air duct, and the first fan is configured to blow air toward the second space through the second air outlet; or, so that the third connecting port is connected with the fifth connecting port, the air in the reversing air duct and the fresh air duct is mixed in the air mixing duct, and then blown toward the first space through the third air outlet; The invention also includes: a first detector, a second detector and a third detector, wherein the first detector is used to detect whether there is anyone in the first space, the second detector is used to detect whether there is anyone in the second space, and the third detector is used to detect the air quality in the first space; The reversing air duct comprises a vertical connection portion and a horizontal reversing portion, one end of the vertical connection portion forms the second connection port which is connected to the first connection port, the other end of the vertical connection portion is connected to the horizontal reversing portion, and the horizontal reversing portion forms the third connection port; the first fan is installed on the horizontal reversing portion; The first fan includes a first motor and a first impeller, the first impeller is fixed on the 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 the output shaft of the first motor is arranged in the horizontal direction.

2. The air conditioner indoor unit according to claim 1, characterized in that: The driving mechanism includes a driving motor and a transmission assembly. The driving motor drives the reversing air duct to rotate relative to the first air duct through the transmission assembly.

3. The air conditioner indoor unit according to claim 2, characterized in that: The transmission assembly includes a first gear and a second gear that are meshed with each other, wherein the first gear is fixed to the output shaft of the driving motor, and the second gear is fixed to the outer side of the vertical connection portion.

4. The air conditioner indoor unit according to any one of claims 1 to 3, characterized in that: The second fan comprises a casing and a driving component 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 the inner wall of the fresh air duct; The fresh air duct also includes a first pipe section and a second pipe section, the first end of the first pipe section forms the fresh air outlet and is connected to the fourth connecting port, and the second end of the first pipe section is connected to the air outlet port; the first end of the second pipe section is connected to the air inlet port, and the second end of the second pipe section forms the fresh air inlet.

5. The air conditioner indoor unit according to any one of claims 1 to 3, characterized in that: The air mixing duct has at least one curved section.

6. The air conditioner indoor unit according to any one of claims 1 to 3, characterized in that: A first sealing ring is provided at the third connecting port; The second air duct is provided with a second sealing ring; when the third connecting port is connected with the second air duct, the first sealing ring and the second sealing ring abut against each other for sealing; A third sealing ring is disposed at the fifth connection port. When the third connection port is connected to the fifth connection port, the third sealing ring abuts against the first sealing ring for sealing.

7. The air conditioner indoor unit according to any one of claims 1 to 3, characterized in that: The first air outlet is installed with a first air outlet grille, the second air outlet is installed with a second air outlet grille, and the third air outlet is installed with a third air outlet grille.

8. An air conditioner, characterized in that: It comprises an air-conditioning outdoor unit and an air-conditioning indoor unit according to any one of claims 1 to 7, wherein the air-conditioning outdoor unit is connected to the indoor heat exchanger of the air-conditioning indoor unit through a refrigerant connecting pipe.

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