Indoor unit of air conditioner

Abstract

The utility model discloses an air conditioner indoor unit, and belongs to the technical field of air treatment. The air conditioner indoor unit comprises a shell, the shell is provided with a first air opening and a second air opening which are oppositely arranged, and the arrangement direction of the first air opening and the second air opening is the first direction; the thickness direction of the heat exchanger is assumed to be a second direction, and the second direction is perpendicular to the first direction; the fan and the heat exchanger are arranged in the first direction; when the air conditioner indoor unit is vertically installed, the first direction is the vertical direction, and the first air opening is located below the second air opening. When the draught fan conducts refrigeration, air enters the shell from the first air opening and is blown out from the second air opening. The rotating direction of the fan is opposite to that of the fan during heating and refrigerating, so that air enters the shell from the second air opening and is blown out from the first air opening. The air conditioner indoor unit can solve the problems that an existing air conditioner indoor unit directly blows cold air and cannot heat hot air.

Description

Technical Field

[0001] The present application relates to the technical field of air conditioning, and in particular to an air conditioning indoor unit. Background Art

[0002] An air conditioner is a device for controlling indoor air, and is a device for adjusting the temperature, humidity, air cleanliness or air flow of indoor air.

[0003] The air conditioner discharges cooled air obtained through a refrigeration cycle, which generally consists of a process of compressing, condensing, expanding, and evaporating a refrigerant, or discharges heated air obtained by reversing the above process, thereby conditioning the indoor air.

[0004] Most of the existing air conditioners have the problem that cold air blows directly on the human body during cooling and hot air cannot be blown down during heating. Utility Model Content

[0005] The present application provides an air-conditioning indoor unit, which can solve the problem that the existing air-conditioning indoor unit directly blows cold air for cooling but cannot blow hot air for heating.

[0006] In one aspect of the present application, an indoor unit of an air conditioner comprises: a housing having a first air outlet and a second air outlet arranged opposite to each other, wherein the arrangement direction of the first air outlet and the second air outlet is a first direction; a heat exchanger arranged in the housing, assuming that the thickness direction of the heat exchanger is a second direction, and the second direction is perpendicular to the first direction; a fan arranged along the first direction with the heat exchanger;

[0007] When the air conditioner indoor unit is installed vertically, the first direction is vertical, and the first air outlet is located below the second air outlet; when the fan is cooling, the air enters the shell from the first air outlet and is blown out from the second air outlet; when the fan is heating, the direction of the fan is opposite to that of cooling, so that the air enters the shell from the second air outlet and is blown out from the first air outlet.

[0008] In another aspect of the present application, an indoor unit of an air conditioner is provided. Assuming that the thickness direction of the heat exchanger is a second direction, the second direction is perpendicular to the first direction. The heat exchanger has a first side surface and a second side surface adjacent to each other, the first side surface faces a first air outlet, and the second side surface is an end surface forming the thickness of the heat exchanger. The indoor unit of the air conditioner further includes a water receiving pan for collecting condensed water generated by the heat exchanger, and the water receiving pan includes: a first water receiving pan, arranged corresponding to the first side surface; a second water receiving pan, arranged corresponding to the second side surface;

[0009] When the air conditioner indoor unit is installed vertically, the first water receiving tray is located below the first side surface; when the air conditioner indoor unit is installed horizontally, the first direction is horizontal, and the second water receiving tray is located below the second side surface.

[0010] In some embodiments, the first side surface of the heat exchanger has a first pointed portion protruding toward the first air outlet, and the first water receiving tray is located below the first pointed portion.

[0011] In some embodiments, the first side of the heat exchanger has two first pointed portions protruding toward the first air outlet; the first water receiving tray has two first pointed portions corresponding one to one; the interval space between the two first water receiving trays forms an air duct for connecting the first air outlet and the heat exchanger.

[0012] In some embodiments, the second side has a plurality of second peaks arranged at intervals along the first direction; the second water receiving tray is provided with a plurality of partitions arranged at intervals along the first direction, and the partitions and the second peaks are staggered in the first direction.

[0013] In some embodiments, the second side surface is wavy or sawtooth-shaped with peaks and valleys arranged alternately along the first direction; a plurality of partitions arranged at intervals along the first direction are provided in the second water receiving tray, and the partitions are arranged corresponding to the valleys of the second side surface.

[0014] In some embodiments, a flow hole is provided at the bottom end of the partition so that the spaces separated by the partition in the second water receiving tray are interconnected.

[0015] In some embodiments, the heat exchanger has a third side surface opposite to the second side surface; there are two second water receiving trays, one of which is arranged corresponding to the second side surface, and the other second water receiving tray is arranged corresponding to the third side surface.

[0016] In some embodiments, the first side surface of the heat exchanger is arc-shaped or V-shaped protruding toward the first air outlet, and the first water receiving tray is arranged corresponding to the middle part of the heat exchanger; there is a spacing space between the first water receiving tray and the second water receiving tray to enable communication between the first air outlet and the heat exchanger.

[0017] In some embodiments, the first side of the heat exchanger is inclined relative to the first direction; the first water receiving tray is arranged below the bottom end of the first side; the second side is connected to the high end of the first side, and there is a spacing space between the second water receiving tray corresponding to the second side and the first water receiving tray to enable communication between the first air outlet and the heat exchanger. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 shows an appearance diagram of an air conditioner according to some embodiments;

[0019] Figure 2 shows a schematic diagram of the interior of an air conditioner according to some embodiments from a side perspective;

[0020] Figure 3 shows a schematic diagram of the interior of an air conditioner according to some embodiments in a front view;

[0021] Figure 4 A diagram showing an application scenario of an air conditioner being installed vertically and cooling according to some embodiments;

[0022] Figure 5 A diagram showing an application scenario of an air conditioner being installed vertically and heating according to some embodiments;

[0023] Figure 6 shows an internal schematic diagram of an air conditioner when it is installed horizontally according to some embodiments;

[0024] Figure 7 A diagram showing an application scenario of an air conditioner installed horizontally and cooling according to some embodiments;

[0025] Figure 8 A diagram showing an application scenario of an air conditioner installed horizontally and heating according to some embodiments;

[0026] Fig. 9 shows an internal schematic diagram of an air conditioner according to some other embodiments from a side perspective;

[0027] Fig.10 shows an internal schematic diagram of an air conditioner when it is installed horizontally according to other embodiments;

[0028] Fig.11 Shows Fig. 9 A partial schematic diagram of

[0029] Fig.12 shows an internal schematic diagram of an air conditioner according to some further embodiments from a side perspective;

[0030] Fig.13 shows an internal schematic diagram of an air conditioner according to yet other embodiments from a side perspective;

[0031] In the above figures, 1, air conditioner indoor unit; 10, shell; 11, first air outlet; 12, second air outlet; 13, second baffle; 20, heat exchanger; 21, first side; 22, second side; 23, third side; 25, first baffle; 26, first tip; 27, second tip; 30, fan; 40, water tray; 401, drain hole; 41, first water tray; 42, second water tray; 421, partition; 50, connecting pipe; 60, ceiling; 61, third air outlet; 62, fourth air outlet. DETAILED DESCRIPTION

[0032] In order to make the purpose and implementation method of the present application clearer, the exemplary implementation method of the present application will be clearly and completely described below in conjunction with the drawings in the exemplary embodiments of the present application. Obviously, the described exemplary embodiments are only part of the embodiments of the present application, rather than all the embodiments.

[0033] In the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0034] The terms "first", "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0035] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0036] The air conditioner in this application performs a refrigeration cycle of the air conditioner by using a compressor, a condenser, an expansion valve and an evaporator. The refrigeration cycle includes a series of processes involving compression, condensation, expansion and evaporation, and supplies refrigerant to the air that has been conditioned and heat-exchanged.

[0037] The compressor compresses the refrigerant gas in a low temperature and low pressure state and discharges the compressed refrigerant gas. The discharged refrigerant gas flows into the condenser. The condenser condenses the compressed refrigerant into a liquid phase, and the heat is released to the surrounding environment through the condensation process.

[0038] The expansion valve expands the high-temperature and high-pressure liquid refrigerant condensed in the condenser into a low-pressure liquid refrigerant. The evaporator evaporates the refrigerant expanded in the expansion valve and returns the refrigerant gas in a low-temperature and low-pressure state to the compressor. The evaporator can achieve a refrigeration effect by utilizing the latent heat of evaporation of the refrigerant to exchange heat with the material to be cooled. In the entire cycle, the air conditioner can adjust the temperature of the indoor space.

[0039] The outdoor unit of the air conditioner refers to a portion of a refrigeration cycle including a compressor and an outdoor heat exchanger, the indoor unit of the air conditioner includes an indoor heat exchanger, and an expansion valve may be provided in the indoor unit or the outdoor unit.

[0040] The indoor heat exchanger and the outdoor heat exchanger function as a condenser or an evaporator. When the indoor heat exchanger functions as a condenser, the air conditioner functions as a heater in a heating mode, and when the indoor heat exchanger functions as an evaporator, the air conditioner functions as a cooler in a cooling mode.

[0041] According to an embodiment of the present application, an air conditioner includes an air conditioner indoor unit 1 installed in an indoor space. The air conditioner indoor unit 1 is connected to an air conditioner outdoor unit installed in an outdoor space through a pipe. The air conditioner outdoor unit may be provided with a compressor, an outdoor heat exchanger, an outdoor fan, an expansion valve and similar components of a refrigeration cycle, and the air conditioner indoor unit 1 may also be provided with an indoor heat exchanger and an indoor fan.

[0042] Reference Figures 1 to 3 , arrows in the figure indicate the air flow direction. According to the embodiment of the present application, the air-conditioning indoor unit 1 includes a shell 10, which forms the overall appearance of the air-conditioning indoor unit 1.

[0043] The housing 10 may be in a rectangular parallelepiped shape. A first air port 11 and a second air port 12 are disposed on a set of opposite side walls of the housing 10 .

[0044] One of the first air vent 11 and the second air vent 12 is used for allowing air to flow into the housing 10, and the other is used for allowing air in the housing 10 to flow out. That is, when the first air vent 11 is an air inlet, the second air vent 12 is an air outlet; when the second air vent 12 is an air inlet, the first air vent 11 is an air outlet.

[0045] The air conditioner indoor unit 1 may include a heat exchanger 20. The heat exchanger 20 is disposed in the housing 10 corresponding to the first air outlet 11. The heat exchanger 20 is used to absorb heat from the air introduced into the housing 10 or transfer heat to the air.

[0046] The air conditioner indoor unit 1 may include a fan 30. The fan 30 is disposed inside the housing 10 and is used to blow out air so that the air flows from the first air outlet 11 to the second air outlet 12, or so that the air flows from the second air outlet 12 to the first air outlet 11. The fan 30 may be a cross-flow fan. Specifically, the fan 30 may be disposed between the heat exchanger 20 and the second air outlet 12. The fan 30 may be a cross-flow fan.

[0047] For the convenience of description, in the present application, the arrangement direction of the first air outlet 11 and the second air outlet 12 is referred to as the first direction. Assuming that the thickness direction of the heat exchanger 20 is the second direction, the second direction is perpendicular to the first direction.

[0048] In the present application, the installation method when the first direction is vertical is referred to as vertical installation.

[0049] When the air conditioner indoor unit 1 is installed vertically, that is, the first air outlet 11 and the second air outlet 12 are vertically opposite to each other, illustratively, the first air outlet 11 is at the bottom and the second air outlet 12 is at the top, so that the cooling air can be supplied from top and returned from bottom, and the heating air can be supplied from bottom and returned from top.

[0050] Reference Figure 2 and Figure 4 , the arrows in the figure indicate the air flow direction. In the cooling mode, the fan 30 rotates forward, the first air outlet 11 is the air inlet, and the second air outlet 12 is the air outlet.

[0051] The air enters the housing 10 from the first air outlet 11 at the bottom, exchanges heat with the heat exchanger 20, and the temperature is reduced. Then the air reaches the fan 30 and is finally sent into the room from the second air outlet 12 at the top.

[0052] Since the air is blown upwards during cooling and will not blow onto people, it can avoid the discomfort caused by the air conditioner blowing cold air directly onto the human body in the prior art.

[0053] Reference Figure 2 and Figure 5 , the arrows in the figure indicate the air flow direction. In the heating mode, the fan 30 is reversed, the second air outlet 12 is the air inlet, and the first air outlet 11 is the air outlet.

[0054] The air enters the housing 10 from the second air outlet 12 at the top, exchanges heat with the heat exchanger 20, and its temperature rises. Then, the air reaches the fan 30 and is finally sent into the room from the first air outlet 11 at the bottom.

[0055] Since the air is blown downwards when heating, the problem of hot air from the air conditioner floating up but not coming down in the prior art can be avoided.

[0056] In the implementation mode provided in the present application, the heat exchanger 20 and the fan 30 are arranged along a first direction, that is, when the air-conditioning indoor unit 1 is installed vertically, the heat exchanger 20 and the fan 30 are arranged vertically. Compared with the horizontal arrangement of the heat exchanger 20 and the fan 30, the vertical arrangement can reduce the horizontal size of the air-conditioning indoor unit 1 and avoid the problem of the air-conditioning indoor unit 1 protruding too much from the wall when the wall-mounted installation is performed.

[0057] In addition, since the thickness direction (second direction) of the heat exchanger 20 is perpendicular to the first direction, when the air conditioner indoor unit is installed vertically, the thickness direction of the heat exchanger 20 is perpendicular to the wall, and the thickness of the heat exchanger 20 is smaller than its width and height, the size of the air conditioner indoor unit 1 protruding from the wall can be relatively small, thereby improving the aesthetics of the wall-mounted installation of the air conditioner indoor unit.

[0058] When the first direction is horizontal, the second direction is vertical. In this application, the installation mode in which the first direction is horizontal is referred to as horizontal installation.

[0059] Reference Figures 6 to 8 , the arrows in the figure indicate the air flow direction. When the air-conditioning indoor unit is installed horizontally, the thickness direction of the heat exchanger 20 is the height direction, and the heat exchanger 20 and the fan 30 are arranged horizontally. Therefore, the vertical height of the air-conditioning indoor unit can be reduced, so that the height dimension of the air-conditioning indoor unit 1 is smaller, and when the air-conditioning indoor unit 1 is installed on the ceiling, it can be avoided that it occupies too much height space.

[0060] When the air conditioner indoor unit 1 is installed horizontally, it can be installed in the suspended ceiling. A third air outlet 61 is provided on the side of the ceiling 60, and a fourth air outlet 62 is provided on the bottom of the ceiling 60. Electric air valves can be provided at the third air outlet 61 and the fourth air outlet 62 to control the opening or closing of the air outlet.

[0061] Reference Figure 7 During cooling operation, the third air vent 61 is opened and the fourth air vent 62 is closed. Air enters the housing 10 from the first air vent 11 on the side, exchanges heat with the heat exchanger 20, and the temperature decreases. Then, the air reaches the fan 30 and is delivered into the room through the second air vent 12 and the third air vent 61 on the side.

[0062] During cooling, the air conditioner indoor unit performs side return and side air supply at the top, which can avoid the problem of cold air from the air conditioner blowing directly on people in the prior art.

[0063] Reference Figure 8 In heating operation, the third air vent 61 is closed and the fourth air vent 62 is opened. Air enters the housing 10 from the first air vent 11 on the side, exchanges heat with the heat exchanger 20, and then reaches the fan 30, passes through the second air vent 12 on the side, and is sent into the room by the fourth air vent 62.

[0064] In some embodiments, continue to refer to Figure 2 and Figure 6 , the end face of the heat exchanger 20 facing the first air outlet 11 is defined as the first side face 21. A side face of the heat exchanger 20 adjacent to the first side face 21 is defined as the second side face 22, and the second side face 22 is the end face forming the thickness of the heat exchanger 20. When the second side face 22 is a plane, it is perpendicular to the second direction. The side face of the heat exchanger 20 opposite to the second side face 22 is defined as the third side face 23.

[0065] A plurality of first baffles 25 arranged at intervals along a first direction are disposed on the second side surface 22 of the heat exchanger 20. The first baffles 25 are formed by extending outward from the second side surface 22.

[0066] A plurality of second baffles 13 arranged at intervals along the first direction are disposed on the inner wall surface of the housing 10 facing the second side surface 22. The second baffles 23 and the first baffles 25 are arranged alternately along the first direction.

[0067] A plurality of first baffles 25 arranged at intervals along the first direction are disposed on the third side surface 23 of the heat exchanger 20. The first baffles 25 are formed by extending outward from the third side surface 23.

[0068] A plurality of second baffles 13 arranged at intervals along the first direction are disposed on the inner wall surface of the housing 10 facing the third side surface 23. The second baffles 23 and the first baffles 25 are arranged alternately along the first direction.

[0069] The first baffle 25 and the second baffle 23 can block the air flow, so that the air flow can contact the second side surface 22 and the third side surface 23 of the heat exchanger 20 more.

[0070] In some embodiments, reference Fig. 9 and Fig.10 , the arrows in the figure indicate the air flow direction, and the air conditioner indoor unit 1 may include a water receiving tray 40 for collecting condensed water generated on the heat exchanger 20. The water receiving tray 40 includes a first water receiving tray 41, and the first water receiving tray 41 is arranged between the heat exchanger 20 and the first air outlet 11.

[0071] The water receiving tray 40 includes a second water receiving tray 42 , and the second water receiving tray 42 is disposed corresponding to the second side surface 22 of the heat exchanger 20 .

[0072] When the indoor unit of the air conditioner is installed vertically, refer to Fig. 9 That is, the first air outlet 11 of the air conditioner indoor unit 1 is at the bottom, the second air outlet 12 is at the top, and the first water receiving tray 41 is located below the heat exchanger 20 for collecting condensed water for use.

[0073] The second water receiving tray 42 is located at the side and does not serve to receive water.

[0074] When the indoor unit of the air conditioner is installed horizontally, refer to Fig.10 , that is, the first air outlet 11 and the second air outlet 12 of the air conditioner indoor unit 1 are arranged horizontally, and the second water receiving tray 42 is located below the heat exchanger 20 for collecting condensed water. The first water receiving tray 41 is located at the side and does not serve to receive water.

[0075] In the implementation mode provided in the present application, by arranging water collection trays 40 on both adjacent sides of the heat exchanger 20, condensed water can be collected and discharged regardless of whether the air-conditioning indoor unit 1 is installed vertically or horizontally, thereby increasing the installation flexibility of the air-conditioning indoor unit 1 and expanding the scope of use of the air-conditioning indoor unit 1.

[0076] In some embodiments, there are two second water receiving trays 42 that are arranged opposite to each other, one second water receiving tray 42 is arranged corresponding to the second side surface 22 , and the other second water receiving tray 42 is arranged corresponding to the third side surface 23 .

[0077] In the implementation mode provided in the present application, due to the provision of the two second water receiving trays 42, when the air-conditioning indoor unit 1 is installed horizontally, the second side 22 can be set downward, and the third side 23 can be set downward. That is, only the second direction of the air-conditioning indoor unit needs to be installed as the height direction, and there is no need to consider the position of the second water receiving tray, thereby improving the convenience of the air-conditioning indoor unit 1 when installed horizontally.

[0078] In some embodiments, a plurality of partitions 421 spaced apart along the first direction are provided in the second water receiving tray 42. The partitions 421 can block the air flow so that the air flow can contact the heat exchanger 20 as much as possible, thereby preventing part of the air flow from flowing directly through the second water receiving tray 42 without passing through the heat exchanger.

[0079] According to an embodiment of the present application, a circulation hole is provided at the bottom end of the partition 421, so that the spaces separated by the partition 421 in the second water receiving tray 42 are interconnected, which is conducive to the discharge of condensed water.

[0080] In some embodiments, a plurality of first baffles 25 are connected to the heat exchanger 20, and the first baffles 25 extend toward the direction of the second water receiving tray 42. The first baffles 25 and the partitions 421 are alternately arranged along the first direction, so that the air flow forms a maze-like flow path at the second water receiving tray 42. On the one hand, the setting of the first baffles 25 and the partitions 421 can increase wind resistance and reduce the air flow through the second water receiving tray 42; on the other hand, the tortuous maze-like path can increase the contact time between the air flow and the surface of the heat exchanger 20, thereby maximizing the heat exchange efficiency.

[0081] According to an embodiment of the present application, a heat-insulating cotton is provided between the second water receiving tray 42 and the shell 10 to prevent condensation on the outer surface of the shell 10 .

[0082] In some embodiments, there are two first water receiving trays 41 , which correspond to the two ends of the second direction of the first side surface 21 , and the interval space between the two first water receiving trays 41 forms an air duct to enable communication between the first air outlet 11 and the heat exchanger 20 .

[0083] Air enters the housing 10 from the first air port 11 , and then flows toward the heat exchanger 20 through the space between the two first water receiving trays 41 .

[0084] According to an embodiment of the present application, the first water receiving tray 41 and the second water receiving tray 42 may be an integrally formed structure, that is, the first water receiving tray 41 and the second water receiving tray 42 are respectively a part of the structure of the water receiving tray 40, and the water receiving tray 40 is "L" shaped as a whole.

[0085] According to an embodiment of the present application, a first water level gauge is installed in the water receiving tray 40 for measuring the water level in the first water receiving tray 41 when the air conditioner indoor unit 1 is installed vertically.

[0086] A second water level gauge is installed in the water receiving tray 40 for measuring the water level in the second water receiving tray 42 when the air conditioner indoor unit 1 is installed horizontally.

[0087] According to the embodiments of the present application, referring to Fig.11 The two first water receiving trays 41 are respectively provided with drainage holes 401 , and the drainage holes 401 can be respectively connected to drainage pumps to discharge the condensed water in the first water receiving trays 41 .

[0088] In other embodiments, the drainage holes 401 on the two first water receiving trays 41 may be connected via a connecting pipe 50 , so that only one drainage pump connected to the drainage hole 401 is required to drain the condensed water in the two first water receiving trays 41 .

[0089] According to an embodiment of the present application, the end of the second water receiving tray 42 close to the first air outlet 11 is the lowest end, and a drainage hole 401 is provided at the bottom of the second water receiving tray 42. The drainage hole 401 is connected to a drainage pump to drain the condensed water in the second water receiving tray 42.

[0090] In the embodiment in which the first water receiving tray 41 and the second water receiving tray 42 are an integrated structure, the second water receiving tray 42 and the first water receiving tray 41 share a drainage hole 401 .

[0091] In some embodiments, reference Fig. 9 The first side surface 21 of the heat exchanger 20 has two ends in the second direction respectively located at the first tip 26 protruding toward the first air outlet 11, and the first water receiving tray 41 is arranged corresponding to the first tip 26. The arrangement of the first tip 26 facilitates the flow of condensed water on the heat exchanger 20 to the first water receiving tray 41.

[0092] Reference Fig.10 The second side surface 22 of the heat exchanger 20 is provided with a plurality of second tips 27 spaced apart along the first direction, and the second tips 27 protrude toward the second water receiving tray 42. The second tips 27 are provided to facilitate the flow of condensed water on the heat exchanger 20 to the second water receiving tray 42.

[0093] In the embodiment where the partitions 421 are disposed in the second water receiving tray 42 , the second tips 27 and the partitions 421 are alternately disposed along the first direction, so that condensed water can flow along the second tips 27 into the space between the partitions 241 .

[0094] In the embodiment where there are two second water receiving trays 42 , the third side surface 23 of the heat exchanger 20 may be provided with a second pointed portion 27 which is the same as the second side surface 22 .

[0095] In some embodiments, reference Fig.12 , the arrows in the figure indicate the air flow direction, when the air conditioner indoor unit 1 is installed vertically, the first water receiving pan 41 is located directly below the first side surface 21 of the heat exchanger 20. There is a space between the first water receiving pan 41 and the second water receiving pan 42, and the space forms an air duct so that the first air outlet 11 and the heat exchanger 20 are connected.

[0096] The air enters the housing 10 through the first air port 11 , and then flows toward the heat exchanger 20 along the space between the first water receiving tray 41 and the second water receiving tray 42 .

[0097] According to an embodiment of the present application, the first side surface 21 of the heat exchanger 20 is in a “V” shape or an arc shape protruding toward the first air outlet 11 , and one end of the first side surface 21 of the heat exchanger 20 corresponds to the first water receiving tray 41 .

[0098] In some embodiments, the second side surface 22 of the heat exchanger 20 is wavy or sawtooth-shaped with alternating peaks and valleys along the first direction. The partitions 421 in the second water receiving tray 42 are arranged corresponding to the valleys on the second side surface 22 .

[0099] The third side surface 23 of the heat exchanger 20 is wavy or sawtooth-shaped with alternating peaks and valleys along the first direction.

[0100] In some embodiments, reference Fig.13 , the arrows in the figure indicate the air flow direction, and the outer surface of the heat exchanger 20 is irregular in shape. The first side surface 21 is arranged obliquely relative to the first direction, so that the end of the heat exchanger 20 facing the first air outlet 11 forms a pointed end, and the first water receiving tray 41 is arranged corresponding to the lowest end of the first side surface 21.

[0101] There is a space between the first water receiving tray 41 and the second water receiving tray 42 for air to flow between the first air port 11 and the heat exchanger 20 .

[0102] There are two embodiments of the second water receiving tray 42. The second water receiving tray 42 on the lower end side close to the first side surface 21 is integrally formed with the first water receiving tray 41, and a space for air circulation is formed between the second water receiving tray 42 on the higher end side and the first water receiving tray 42.

[0103] In one example, when the air conditioner indoor unit is installed vertically, the first side surface 21 is tilted downward from right to left, that is, the lowest end of the first water receiving tray 41 is located on the left side, and the first water receiving tray 41 is arranged close to the left side.

[0104] The first water receiving tray 41 and the second water receiving tray 42 on the left are integrally formed, and a separation space is formed between the first water receiving tray 42 and the second water receiving tray 42 on the right.

[0105] In the present application, the first air outlet 11 and the second air outlet 12 are arranged opposite to each other. When the indoor unit of the air conditioner is installed vertically, the lower return air can be sent to the upper air outlet during cooling, and the cold air can be blown upward, which can avoid the problem of cold air blowing directly on people. By changing the direction of the fan 30, the upper return air can be sent to the lower air outlet during heating, and the hot air can be blown downward, which can avoid the problem of the hot air not being able to come down.

[0106] In the present application, the arrangement direction of the heat exchanger 20 and the fan 30 is the same as the arrangement direction of the first air outlet 11 and the second air outlet 12, that is, when the air conditioner indoor unit is installed vertically, the heat exchanger 20 and the fan 30 are arranged vertically, which can avoid the problem of the air conditioner indoor unit protruding too much from the wall when the heat exchanger 20 and the fan 30 are arranged horizontally.

[0107] In the present application, the thickness direction of the heat exchanger 20 is opposite to the arrangement direction of the first air outlet 11 and the second air outlet 12. When the air conditioner indoor unit is wall-mounted on the wall, the thickness direction of the heat exchanger 20 can be made perpendicular to the wall, further reducing the size of the air conditioner indoor unit protruding from the wall.

[0108] In the present application, by arranging water collection trays 40 on both adjacent sides of the heat exchanger 20, condensed water can be collected and discharged regardless of whether the air-conditioning indoor unit 1 is installed vertically or horizontally, thereby increasing the installation flexibility of the air-conditioning indoor unit 1 and expanding the scope of use of the air-conditioning indoor unit.

[0109] In the present application, due to the provision of two second water receiving trays 42, when the air-conditioning indoor unit 1 is installed horizontally, the second side 22 can be set downward, and the third side 23 can be set downward. That is, only the second direction of the air-conditioning indoor unit needs to be installed as the height direction, and there is no need to consider the position of the water receiving tray, thereby improving the convenience of the air-conditioning indoor unit 1 when installed horizontally.

[0110] In the present application, a plurality of partitions 421 arranged at intervals along the first direction are provided in the second water receiving tray 42. The partitions 421 can block the air flow so that the air flow can contact the heat exchanger 20 as much as possible, thereby preventing part of the air flow from directly flowing through the second water receiving tray 42 without passing through the heat exchanger 20.

[0111] In the present application, the first side surface 21, the second side surface 22 and / or the third side surface 23 of the heat exchanger 20 are provided with outwardly protruding pointed portions, which can guide the condensed water to flow toward the water receiving tray.

[0112] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

[0113] For the convenience of explanation, the above description has been made in conjunction with specific embodiments. However, the above exemplary discussion is not intended to be exhaustive or limit the embodiments to the specific forms disclosed above. Based on the above teachings, various modifications and variations can be obtained. The selection and description of the above embodiments are to better explain the principles and practical applications, so that those skilled in the art can better use the embodiments and various different variations of the embodiments suitable for specific use considerations.

Claims

1. An air conditioner indoor unit, characterized in that: include: A housing having a first air outlet and a second air outlet arranged opposite to each other, wherein the first air outlet and the second air outlet are arranged in a first direction; A heat exchanger is disposed in the shell, assuming that the thickness direction of the heat exchanger is a second direction, and the second direction is perpendicular to the first direction; the heat exchanger has a first side surface and a second side surface adjacent to each other, the first side surface faces the first air outlet, and the second side surface is an end surface forming the thickness of the heat exchanger; A fan, arranged along the first direction with the heat exchanger; A water receiving tray, used to collect condensed water generated by the heat exchanger, the water receiving tray comprising: A first water receiving tray, arranged corresponding to the first side surface; A second water receiving tray is provided corresponding to the second side surface; When the air conditioner indoor unit is installed vertically, the first direction is vertical, the first air outlet is located below the second air outlet, and the first water receiving tray is located below the first side surface; When the fan is in cooling mode, the air enters the housing from the first air port and is blown out from the second air port; when the fan is in heating mode, the direction of the fan is opposite to that of the fan in cooling mode, so that the air enters the housing from the second air port and is blown out from the first air port; When the air conditioner indoor unit is installed horizontally, the first direction is horizontal, and the second water receiving tray is located below the second side surface.

2. The air conditioner indoor unit according to claim 1, characterized in that: The first side surface of the heat exchanger has a first tip portion protruding toward the first air outlet, and the first water receiving tray is located below the first tip portion.

3. The air conditioner indoor unit according to claim 1, characterized in that: The first side surface of the heat exchanger has two first pointed portions protruding toward the first air outlet; The first water receiving trays have two corresponding to the first pointed parts one by one; the interval space between the two first water receiving trays forms an air duct for communicating the first air outlet with the heat exchanger.

4. The air conditioner indoor unit according to claim 1, characterized in that: The second side surface has a plurality of second peaks arranged at intervals along the first direction; A plurality of partitions arranged at intervals along a first direction are disposed in the second water receiving tray, and the partitions and the second pointed portions are staggered in the first direction.

5. The air conditioner indoor unit according to claim 1, characterized in that: The second side surface is in a wavy or sawtooth shape with peaks and valleys arranged alternately along the first direction; A plurality of partitions arranged at intervals along the first direction are disposed in the second water receiving tray, and the partitions are disposed corresponding to the valleys of the second side surface.

6. The air conditioner indoor unit according to claim 4 or 5, characterized in that: A flow hole is provided at the bottom end of the partition so that the spaces separated by the partition in the second water receiving tray are communicated with each other.

7. The air conditioner indoor unit according to claim 1, characterized in that: The heat exchanger has a third side surface opposite to the second side surface; the second water receiving trays have two, one of which is arranged corresponding to the second side surface, and the other is arranged corresponding to the third side surface.

8. The air conditioner indoor unit according to claim 1, characterized in that: The first side surface of the heat exchanger is in an arc shape or a V shape protruding toward the first air outlet, and the first water receiving tray is arranged corresponding to the middle part of the heat exchanger; A spacing space is defined between the first water receiving tray and the second water receiving tray, so that the first air port is in communication with the heat exchanger.

9. The air conditioner indoor unit according to claim 1, characterized in that: The first side surface of the heat exchanger is inclined relative to a first direction; the first water receiving tray is arranged below the bottom end of the first side surface; The second side surface is connected to the high end of the first side surface, and a spacing space is provided between a second water receiving pan corresponding to the second side surface and the first water receiving pan, so that the first air outlet is connected to the heat exchanger.

10. An air conditioner indoor unit, characterized in that: include: A housing having a first air outlet and a second air outlet arranged opposite to each other, wherein the first air outlet and the second air outlet are arranged in a first direction; A heat exchanger is disposed in the shell, assuming that the thickness direction of the heat exchanger is a second direction, and the second direction is perpendicular to the first direction; A fan, arranged along the first direction with the heat exchanger; When the air conditioner indoor unit is installed vertically, the first direction is vertical, and the first air outlet is located below the second air outlet; When cooling, the fan allows air to enter the shell from the first air outlet and blow out from the second air outlet; when heating, the fan rotates in the opposite direction to that during cooling, so that air enters the shell from the second air outlet and blows out from the first air outlet.

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